1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2011, 2019 by Delphix. All rights reserved. 25 * Copyright (c) 2014 Integros [integros.com] 26 * Copyright 2016 Nexenta Systems, Inc. 27 * Copyright (c) 2017, 2018 Lawrence Livermore National Security, LLC. 28 * Copyright (c) 2015, 2017, Intel Corporation. 29 * Copyright (c) 2020 Datto Inc. 30 * Copyright (c) 2020, The FreeBSD Foundation [1] 31 * 32 * [1] Portions of this software were developed by Allan Jude 33 * under sponsorship from the FreeBSD Foundation. 34 * Copyright (c) 2021 Allan Jude 35 * Copyright (c) 2021 Toomas Soome <tsoome@me.com> 36 */ 37 38 #include <stdio.h> 39 #include <unistd.h> 40 #include <stdlib.h> 41 #include <ctype.h> 42 #include <getopt.h> 43 #include <sys/zfs_context.h> 44 #include <sys/spa.h> 45 #include <sys/spa_impl.h> 46 #include <sys/dmu.h> 47 #include <sys/zap.h> 48 #include <sys/fs/zfs.h> 49 #include <sys/zfs_znode.h> 50 #include <sys/zfs_sa.h> 51 #include <sys/sa.h> 52 #include <sys/sa_impl.h> 53 #include <sys/vdev.h> 54 #include <sys/vdev_impl.h> 55 #include <sys/metaslab_impl.h> 56 #include <sys/dmu_objset.h> 57 #include <sys/dsl_dir.h> 58 #include <sys/dsl_dataset.h> 59 #include <sys/dsl_pool.h> 60 #include <sys/dsl_bookmark.h> 61 #include <sys/dbuf.h> 62 #include <sys/zil.h> 63 #include <sys/zil_impl.h> 64 #include <sys/stat.h> 65 #include <sys/resource.h> 66 #include <sys/dmu_send.h> 67 #include <sys/dmu_traverse.h> 68 #include <sys/zio_checksum.h> 69 #include <sys/zio_compress.h> 70 #include <sys/zfs_fuid.h> 71 #include <sys/arc.h> 72 #include <sys/arc_impl.h> 73 #include <sys/ddt.h> 74 #include <sys/zfeature.h> 75 #include <sys/abd.h> 76 #include <sys/blkptr.h> 77 #include <sys/dsl_crypt.h> 78 #include <sys/dsl_scan.h> 79 #include <sys/btree.h> 80 #include <zfs_comutil.h> 81 #include <sys/zstd/zstd.h> 82 83 #include <libnvpair.h> 84 #include <libzutil.h> 85 86 #include "zdb.h" 87 88 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \ 89 zio_compress_table[(idx)].ci_name : "UNKNOWN") 90 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \ 91 zio_checksum_table[(idx)].ci_name : "UNKNOWN") 92 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \ 93 (idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA ? \ 94 DMU_OT_ZAP_OTHER : \ 95 (idx) == DMU_OTN_UINT64_DATA || (idx) == DMU_OTN_UINT64_METADATA ? \ 96 DMU_OT_UINT64_OTHER : DMU_OT_NUMTYPES) 97 98 /* Some platforms require part of inode IDs to be remapped */ 99 #ifdef __APPLE__ 100 #define ZDB_MAP_OBJECT_ID(obj) INO_XNUTOZFS(obj, 2) 101 #else 102 #define ZDB_MAP_OBJECT_ID(obj) (obj) 103 #endif 104 105 static char * 106 zdb_ot_name(dmu_object_type_t type) 107 { 108 if (type < DMU_OT_NUMTYPES) 109 return (dmu_ot[type].ot_name); 110 else if ((type & DMU_OT_NEWTYPE) && 111 ((type & DMU_OT_BYTESWAP_MASK) < DMU_BSWAP_NUMFUNCS)) 112 return (dmu_ot_byteswap[type & DMU_OT_BYTESWAP_MASK].ob_name); 113 else 114 return ("UNKNOWN"); 115 } 116 117 extern int reference_tracking_enable; 118 extern int zfs_recover; 119 extern unsigned long zfs_arc_meta_min, zfs_arc_meta_limit; 120 extern int zfs_vdev_async_read_max_active; 121 extern boolean_t spa_load_verify_dryrun; 122 extern boolean_t spa_mode_readable_spacemaps; 123 extern int zfs_reconstruct_indirect_combinations_max; 124 extern int zfs_btree_verify_intensity; 125 126 static const char cmdname[] = "zdb"; 127 uint8_t dump_opt[256]; 128 129 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size); 130 131 uint64_t *zopt_metaslab = NULL; 132 static unsigned zopt_metaslab_args = 0; 133 134 typedef struct zopt_object_range { 135 uint64_t zor_obj_start; 136 uint64_t zor_obj_end; 137 uint64_t zor_flags; 138 } zopt_object_range_t; 139 zopt_object_range_t *zopt_object_ranges = NULL; 140 static unsigned zopt_object_args = 0; 141 142 static int flagbits[256]; 143 144 #define ZOR_FLAG_PLAIN_FILE 0x0001 145 #define ZOR_FLAG_DIRECTORY 0x0002 146 #define ZOR_FLAG_SPACE_MAP 0x0004 147 #define ZOR_FLAG_ZAP 0x0008 148 #define ZOR_FLAG_ALL_TYPES -1 149 #define ZOR_SUPPORTED_FLAGS (ZOR_FLAG_PLAIN_FILE | \ 150 ZOR_FLAG_DIRECTORY | \ 151 ZOR_FLAG_SPACE_MAP | \ 152 ZOR_FLAG_ZAP) 153 154 #define ZDB_FLAG_CHECKSUM 0x0001 155 #define ZDB_FLAG_DECOMPRESS 0x0002 156 #define ZDB_FLAG_BSWAP 0x0004 157 #define ZDB_FLAG_GBH 0x0008 158 #define ZDB_FLAG_INDIRECT 0x0010 159 #define ZDB_FLAG_RAW 0x0020 160 #define ZDB_FLAG_PRINT_BLKPTR 0x0040 161 #define ZDB_FLAG_VERBOSE 0x0080 162 163 uint64_t max_inflight_bytes = 256 * 1024 * 1024; /* 256MB */ 164 static int leaked_objects = 0; 165 static range_tree_t *mos_refd_objs; 166 167 static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *, 168 boolean_t); 169 static void mos_obj_refd(uint64_t); 170 static void mos_obj_refd_multiple(uint64_t); 171 static int dump_bpobj_cb(void *arg, const blkptr_t *bp, boolean_t free, 172 dmu_tx_t *tx); 173 174 typedef struct sublivelist_verify { 175 /* FREE's that haven't yet matched to an ALLOC, in one sub-livelist */ 176 zfs_btree_t sv_pair; 177 178 /* ALLOC's without a matching FREE, accumulates across sub-livelists */ 179 zfs_btree_t sv_leftover; 180 } sublivelist_verify_t; 181 182 static int 183 livelist_compare(const void *larg, const void *rarg) 184 { 185 const blkptr_t *l = larg; 186 const blkptr_t *r = rarg; 187 188 /* Sort them according to dva[0] */ 189 uint64_t l_dva0_vdev, r_dva0_vdev; 190 l_dva0_vdev = DVA_GET_VDEV(&l->blk_dva[0]); 191 r_dva0_vdev = DVA_GET_VDEV(&r->blk_dva[0]); 192 if (l_dva0_vdev < r_dva0_vdev) 193 return (-1); 194 else if (l_dva0_vdev > r_dva0_vdev) 195 return (+1); 196 197 /* if vdevs are equal, sort by offsets. */ 198 uint64_t l_dva0_offset; 199 uint64_t r_dva0_offset; 200 l_dva0_offset = DVA_GET_OFFSET(&l->blk_dva[0]); 201 r_dva0_offset = DVA_GET_OFFSET(&r->blk_dva[0]); 202 if (l_dva0_offset < r_dva0_offset) { 203 return (-1); 204 } else if (l_dva0_offset > r_dva0_offset) { 205 return (+1); 206 } 207 208 /* 209 * Since we're storing blkptrs without cancelling FREE/ALLOC pairs, 210 * it's possible the offsets are equal. In that case, sort by txg 211 */ 212 if (l->blk_birth < r->blk_birth) { 213 return (-1); 214 } else if (l->blk_birth > r->blk_birth) { 215 return (+1); 216 } 217 return (0); 218 } 219 220 typedef struct sublivelist_verify_block { 221 dva_t svb_dva; 222 223 /* 224 * We need this to check if the block marked as allocated 225 * in the livelist was freed (and potentially reallocated) 226 * in the metaslab spacemaps at a later TXG. 227 */ 228 uint64_t svb_allocated_txg; 229 } sublivelist_verify_block_t; 230 231 static void zdb_print_blkptr(const blkptr_t *bp, int flags); 232 233 typedef struct sublivelist_verify_block_refcnt { 234 /* block pointer entry in livelist being verified */ 235 blkptr_t svbr_blk; 236 237 /* 238 * Refcount gets incremented to 1 when we encounter the first 239 * FREE entry for the svfbr block pointer and a node for it 240 * is created in our ZDB verification/tracking metadata. 241 * 242 * As we encounter more FREE entries we increment this counter 243 * and similarly decrement it whenever we find the respective 244 * ALLOC entries for this block. 245 * 246 * When the refcount gets to 0 it means that all the FREE and 247 * ALLOC entries of this block have paired up and we no longer 248 * need to track it in our verification logic (e.g. the node 249 * containing this struct in our verification data structure 250 * should be freed). 251 * 252 * [refer to sublivelist_verify_blkptr() for the actual code] 253 */ 254 uint32_t svbr_refcnt; 255 } sublivelist_verify_block_refcnt_t; 256 257 static int 258 sublivelist_block_refcnt_compare(const void *larg, const void *rarg) 259 { 260 const sublivelist_verify_block_refcnt_t *l = larg; 261 const sublivelist_verify_block_refcnt_t *r = rarg; 262 return (livelist_compare(&l->svbr_blk, &r->svbr_blk)); 263 } 264 265 static int 266 sublivelist_verify_blkptr(void *arg, const blkptr_t *bp, boolean_t free, 267 dmu_tx_t *tx) 268 { 269 ASSERT3P(tx, ==, NULL); 270 struct sublivelist_verify *sv = arg; 271 sublivelist_verify_block_refcnt_t current = { 272 .svbr_blk = *bp, 273 274 /* 275 * Start with 1 in case this is the first free entry. 276 * This field is not used for our B-Tree comparisons 277 * anyway. 278 */ 279 .svbr_refcnt = 1, 280 }; 281 282 zfs_btree_index_t where; 283 sublivelist_verify_block_refcnt_t *pair = 284 zfs_btree_find(&sv->sv_pair, ¤t, &where); 285 if (free) { 286 if (pair == NULL) { 287 /* first free entry for this block pointer */ 288 zfs_btree_add(&sv->sv_pair, ¤t); 289 } else { 290 pair->svbr_refcnt++; 291 } 292 } else { 293 if (pair == NULL) { 294 /* block that is currently marked as allocated */ 295 for (int i = 0; i < SPA_DVAS_PER_BP; i++) { 296 if (DVA_IS_EMPTY(&bp->blk_dva[i])) 297 break; 298 sublivelist_verify_block_t svb = { 299 .svb_dva = bp->blk_dva[i], 300 .svb_allocated_txg = bp->blk_birth 301 }; 302 303 if (zfs_btree_find(&sv->sv_leftover, &svb, 304 &where) == NULL) { 305 zfs_btree_add_idx(&sv->sv_leftover, 306 &svb, &where); 307 } 308 } 309 } else { 310 /* alloc matches a free entry */ 311 pair->svbr_refcnt--; 312 if (pair->svbr_refcnt == 0) { 313 /* all allocs and frees have been matched */ 314 zfs_btree_remove_idx(&sv->sv_pair, &where); 315 } 316 } 317 } 318 319 return (0); 320 } 321 322 static int 323 sublivelist_verify_func(void *args, dsl_deadlist_entry_t *dle) 324 { 325 int err; 326 struct sublivelist_verify *sv = args; 327 328 zfs_btree_create(&sv->sv_pair, sublivelist_block_refcnt_compare, 329 sizeof (sublivelist_verify_block_refcnt_t)); 330 331 err = bpobj_iterate_nofree(&dle->dle_bpobj, sublivelist_verify_blkptr, 332 sv, NULL); 333 334 sublivelist_verify_block_refcnt_t *e; 335 zfs_btree_index_t *cookie = NULL; 336 while ((e = zfs_btree_destroy_nodes(&sv->sv_pair, &cookie)) != NULL) { 337 char blkbuf[BP_SPRINTF_LEN]; 338 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), 339 &e->svbr_blk, B_TRUE); 340 (void) printf("\tERROR: %d unmatched FREE(s): %s\n", 341 e->svbr_refcnt, blkbuf); 342 } 343 zfs_btree_destroy(&sv->sv_pair); 344 345 return (err); 346 } 347 348 static int 349 livelist_block_compare(const void *larg, const void *rarg) 350 { 351 const sublivelist_verify_block_t *l = larg; 352 const sublivelist_verify_block_t *r = rarg; 353 354 if (DVA_GET_VDEV(&l->svb_dva) < DVA_GET_VDEV(&r->svb_dva)) 355 return (-1); 356 else if (DVA_GET_VDEV(&l->svb_dva) > DVA_GET_VDEV(&r->svb_dva)) 357 return (+1); 358 359 if (DVA_GET_OFFSET(&l->svb_dva) < DVA_GET_OFFSET(&r->svb_dva)) 360 return (-1); 361 else if (DVA_GET_OFFSET(&l->svb_dva) > DVA_GET_OFFSET(&r->svb_dva)) 362 return (+1); 363 364 if (DVA_GET_ASIZE(&l->svb_dva) < DVA_GET_ASIZE(&r->svb_dva)) 365 return (-1); 366 else if (DVA_GET_ASIZE(&l->svb_dva) > DVA_GET_ASIZE(&r->svb_dva)) 367 return (+1); 368 369 return (0); 370 } 371 372 /* 373 * Check for errors in a livelist while tracking all unfreed ALLOCs in the 374 * sublivelist_verify_t: sv->sv_leftover 375 */ 376 static void 377 livelist_verify(dsl_deadlist_t *dl, void *arg) 378 { 379 sublivelist_verify_t *sv = arg; 380 dsl_deadlist_iterate(dl, sublivelist_verify_func, sv); 381 } 382 383 /* 384 * Check for errors in the livelist entry and discard the intermediary 385 * data structures 386 */ 387 static int 388 sublivelist_verify_lightweight(void *args, dsl_deadlist_entry_t *dle) 389 { 390 (void) args; 391 sublivelist_verify_t sv; 392 zfs_btree_create(&sv.sv_leftover, livelist_block_compare, 393 sizeof (sublivelist_verify_block_t)); 394 int err = sublivelist_verify_func(&sv, dle); 395 zfs_btree_clear(&sv.sv_leftover); 396 zfs_btree_destroy(&sv.sv_leftover); 397 return (err); 398 } 399 400 typedef struct metaslab_verify { 401 /* 402 * Tree containing all the leftover ALLOCs from the livelists 403 * that are part of this metaslab. 404 */ 405 zfs_btree_t mv_livelist_allocs; 406 407 /* 408 * Metaslab information. 409 */ 410 uint64_t mv_vdid; 411 uint64_t mv_msid; 412 uint64_t mv_start; 413 uint64_t mv_end; 414 415 /* 416 * What's currently allocated for this metaslab. 417 */ 418 range_tree_t *mv_allocated; 419 } metaslab_verify_t; 420 421 typedef void ll_iter_t(dsl_deadlist_t *ll, void *arg); 422 423 typedef int (*zdb_log_sm_cb_t)(spa_t *spa, space_map_entry_t *sme, uint64_t txg, 424 void *arg); 425 426 typedef struct unflushed_iter_cb_arg { 427 spa_t *uic_spa; 428 uint64_t uic_txg; 429 void *uic_arg; 430 zdb_log_sm_cb_t uic_cb; 431 } unflushed_iter_cb_arg_t; 432 433 static int 434 iterate_through_spacemap_logs_cb(space_map_entry_t *sme, void *arg) 435 { 436 unflushed_iter_cb_arg_t *uic = arg; 437 return (uic->uic_cb(uic->uic_spa, sme, uic->uic_txg, uic->uic_arg)); 438 } 439 440 static void 441 iterate_through_spacemap_logs(spa_t *spa, zdb_log_sm_cb_t cb, void *arg) 442 { 443 if (!spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP)) 444 return; 445 446 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 447 for (spa_log_sm_t *sls = avl_first(&spa->spa_sm_logs_by_txg); 448 sls; sls = AVL_NEXT(&spa->spa_sm_logs_by_txg, sls)) { 449 space_map_t *sm = NULL; 450 VERIFY0(space_map_open(&sm, spa_meta_objset(spa), 451 sls->sls_sm_obj, 0, UINT64_MAX, SPA_MINBLOCKSHIFT)); 452 453 unflushed_iter_cb_arg_t uic = { 454 .uic_spa = spa, 455 .uic_txg = sls->sls_txg, 456 .uic_arg = arg, 457 .uic_cb = cb 458 }; 459 VERIFY0(space_map_iterate(sm, space_map_length(sm), 460 iterate_through_spacemap_logs_cb, &uic)); 461 space_map_close(sm); 462 } 463 spa_config_exit(spa, SCL_CONFIG, FTAG); 464 } 465 466 static void 467 verify_livelist_allocs(metaslab_verify_t *mv, uint64_t txg, 468 uint64_t offset, uint64_t size) 469 { 470 sublivelist_verify_block_t svb; 471 DVA_SET_VDEV(&svb.svb_dva, mv->mv_vdid); 472 DVA_SET_OFFSET(&svb.svb_dva, offset); 473 DVA_SET_ASIZE(&svb.svb_dva, size); 474 zfs_btree_index_t where; 475 uint64_t end_offset = offset + size; 476 477 /* 478 * Look for an exact match for spacemap entry in the livelist entries. 479 * Then, look for other livelist entries that fall within the range 480 * of the spacemap entry as it may have been condensed 481 */ 482 sublivelist_verify_block_t *found = 483 zfs_btree_find(&mv->mv_livelist_allocs, &svb, &where); 484 if (found == NULL) { 485 found = zfs_btree_next(&mv->mv_livelist_allocs, &where, &where); 486 } 487 for (; found != NULL && DVA_GET_VDEV(&found->svb_dva) == mv->mv_vdid && 488 DVA_GET_OFFSET(&found->svb_dva) < end_offset; 489 found = zfs_btree_next(&mv->mv_livelist_allocs, &where, &where)) { 490 if (found->svb_allocated_txg <= txg) { 491 (void) printf("ERROR: Livelist ALLOC [%llx:%llx] " 492 "from TXG %llx FREED at TXG %llx\n", 493 (u_longlong_t)DVA_GET_OFFSET(&found->svb_dva), 494 (u_longlong_t)DVA_GET_ASIZE(&found->svb_dva), 495 (u_longlong_t)found->svb_allocated_txg, 496 (u_longlong_t)txg); 497 } 498 } 499 } 500 501 static int 502 metaslab_spacemap_validation_cb(space_map_entry_t *sme, void *arg) 503 { 504 metaslab_verify_t *mv = arg; 505 uint64_t offset = sme->sme_offset; 506 uint64_t size = sme->sme_run; 507 uint64_t txg = sme->sme_txg; 508 509 if (sme->sme_type == SM_ALLOC) { 510 if (range_tree_contains(mv->mv_allocated, 511 offset, size)) { 512 (void) printf("ERROR: DOUBLE ALLOC: " 513 "%llu [%llx:%llx] " 514 "%llu:%llu LOG_SM\n", 515 (u_longlong_t)txg, (u_longlong_t)offset, 516 (u_longlong_t)size, (u_longlong_t)mv->mv_vdid, 517 (u_longlong_t)mv->mv_msid); 518 } else { 519 range_tree_add(mv->mv_allocated, 520 offset, size); 521 } 522 } else { 523 if (!range_tree_contains(mv->mv_allocated, 524 offset, size)) { 525 (void) printf("ERROR: DOUBLE FREE: " 526 "%llu [%llx:%llx] " 527 "%llu:%llu LOG_SM\n", 528 (u_longlong_t)txg, (u_longlong_t)offset, 529 (u_longlong_t)size, (u_longlong_t)mv->mv_vdid, 530 (u_longlong_t)mv->mv_msid); 531 } else { 532 range_tree_remove(mv->mv_allocated, 533 offset, size); 534 } 535 } 536 537 if (sme->sme_type != SM_ALLOC) { 538 /* 539 * If something is freed in the spacemap, verify that 540 * it is not listed as allocated in the livelist. 541 */ 542 verify_livelist_allocs(mv, txg, offset, size); 543 } 544 return (0); 545 } 546 547 static int 548 spacemap_check_sm_log_cb(spa_t *spa, space_map_entry_t *sme, 549 uint64_t txg, void *arg) 550 { 551 metaslab_verify_t *mv = arg; 552 uint64_t offset = sme->sme_offset; 553 uint64_t vdev_id = sme->sme_vdev; 554 555 vdev_t *vd = vdev_lookup_top(spa, vdev_id); 556 557 /* skip indirect vdevs */ 558 if (!vdev_is_concrete(vd)) 559 return (0); 560 561 if (vdev_id != mv->mv_vdid) 562 return (0); 563 564 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 565 if (ms->ms_id != mv->mv_msid) 566 return (0); 567 568 if (txg < metaslab_unflushed_txg(ms)) 569 return (0); 570 571 572 ASSERT3U(txg, ==, sme->sme_txg); 573 return (metaslab_spacemap_validation_cb(sme, mv)); 574 } 575 576 static void 577 spacemap_check_sm_log(spa_t *spa, metaslab_verify_t *mv) 578 { 579 iterate_through_spacemap_logs(spa, spacemap_check_sm_log_cb, mv); 580 } 581 582 static void 583 spacemap_check_ms_sm(space_map_t *sm, metaslab_verify_t *mv) 584 { 585 if (sm == NULL) 586 return; 587 588 VERIFY0(space_map_iterate(sm, space_map_length(sm), 589 metaslab_spacemap_validation_cb, mv)); 590 } 591 592 static void iterate_deleted_livelists(spa_t *spa, ll_iter_t func, void *arg); 593 594 /* 595 * Transfer blocks from sv_leftover tree to the mv_livelist_allocs if 596 * they are part of that metaslab (mv_msid). 597 */ 598 static void 599 mv_populate_livelist_allocs(metaslab_verify_t *mv, sublivelist_verify_t *sv) 600 { 601 zfs_btree_index_t where; 602 sublivelist_verify_block_t *svb; 603 ASSERT3U(zfs_btree_numnodes(&mv->mv_livelist_allocs), ==, 0); 604 for (svb = zfs_btree_first(&sv->sv_leftover, &where); 605 svb != NULL; 606 svb = zfs_btree_next(&sv->sv_leftover, &where, &where)) { 607 if (DVA_GET_VDEV(&svb->svb_dva) != mv->mv_vdid) 608 continue; 609 610 if (DVA_GET_OFFSET(&svb->svb_dva) < mv->mv_start && 611 (DVA_GET_OFFSET(&svb->svb_dva) + 612 DVA_GET_ASIZE(&svb->svb_dva)) > mv->mv_start) { 613 (void) printf("ERROR: Found block that crosses " 614 "metaslab boundary: <%llu:%llx:%llx>\n", 615 (u_longlong_t)DVA_GET_VDEV(&svb->svb_dva), 616 (u_longlong_t)DVA_GET_OFFSET(&svb->svb_dva), 617 (u_longlong_t)DVA_GET_ASIZE(&svb->svb_dva)); 618 continue; 619 } 620 621 if (DVA_GET_OFFSET(&svb->svb_dva) < mv->mv_start) 622 continue; 623 624 if (DVA_GET_OFFSET(&svb->svb_dva) >= mv->mv_end) 625 continue; 626 627 if ((DVA_GET_OFFSET(&svb->svb_dva) + 628 DVA_GET_ASIZE(&svb->svb_dva)) > mv->mv_end) { 629 (void) printf("ERROR: Found block that crosses " 630 "metaslab boundary: <%llu:%llx:%llx>\n", 631 (u_longlong_t)DVA_GET_VDEV(&svb->svb_dva), 632 (u_longlong_t)DVA_GET_OFFSET(&svb->svb_dva), 633 (u_longlong_t)DVA_GET_ASIZE(&svb->svb_dva)); 634 continue; 635 } 636 637 zfs_btree_add(&mv->mv_livelist_allocs, svb); 638 } 639 640 for (svb = zfs_btree_first(&mv->mv_livelist_allocs, &where); 641 svb != NULL; 642 svb = zfs_btree_next(&mv->mv_livelist_allocs, &where, &where)) { 643 zfs_btree_remove(&sv->sv_leftover, svb); 644 } 645 } 646 647 /* 648 * [Livelist Check] 649 * Iterate through all the sublivelists and: 650 * - report leftover frees (**) 651 * - record leftover ALLOCs together with their TXG [see Cross Check] 652 * 653 * (**) Note: Double ALLOCs are valid in datasets that have dedup 654 * enabled. Similarly double FREEs are allowed as well but 655 * only if they pair up with a corresponding ALLOC entry once 656 * we our done with our sublivelist iteration. 657 * 658 * [Spacemap Check] 659 * for each metaslab: 660 * - iterate over spacemap and then the metaslab's entries in the 661 * spacemap log, then report any double FREEs and ALLOCs (do not 662 * blow up). 663 * 664 * [Cross Check] 665 * After finishing the Livelist Check phase and while being in the 666 * Spacemap Check phase, we find all the recorded leftover ALLOCs 667 * of the livelist check that are part of the metaslab that we are 668 * currently looking at in the Spacemap Check. We report any entries 669 * that are marked as ALLOCs in the livelists but have been actually 670 * freed (and potentially allocated again) after their TXG stamp in 671 * the spacemaps. Also report any ALLOCs from the livelists that 672 * belong to indirect vdevs (e.g. their vdev completed removal). 673 * 674 * Note that this will miss Log Spacemap entries that cancelled each other 675 * out before being flushed to the metaslab, so we are not guaranteed 676 * to match all erroneous ALLOCs. 677 */ 678 static void 679 livelist_metaslab_validate(spa_t *spa) 680 { 681 (void) printf("Verifying deleted livelist entries\n"); 682 683 sublivelist_verify_t sv; 684 zfs_btree_create(&sv.sv_leftover, livelist_block_compare, 685 sizeof (sublivelist_verify_block_t)); 686 iterate_deleted_livelists(spa, livelist_verify, &sv); 687 688 (void) printf("Verifying metaslab entries\n"); 689 vdev_t *rvd = spa->spa_root_vdev; 690 for (uint64_t c = 0; c < rvd->vdev_children; c++) { 691 vdev_t *vd = rvd->vdev_child[c]; 692 693 if (!vdev_is_concrete(vd)) 694 continue; 695 696 for (uint64_t mid = 0; mid < vd->vdev_ms_count; mid++) { 697 metaslab_t *m = vd->vdev_ms[mid]; 698 699 (void) fprintf(stderr, 700 "\rverifying concrete vdev %llu, " 701 "metaslab %llu of %llu ...", 702 (longlong_t)vd->vdev_id, 703 (longlong_t)mid, 704 (longlong_t)vd->vdev_ms_count); 705 706 uint64_t shift, start; 707 range_seg_type_t type = 708 metaslab_calculate_range_tree_type(vd, m, 709 &start, &shift); 710 metaslab_verify_t mv; 711 mv.mv_allocated = range_tree_create(NULL, 712 type, NULL, start, shift); 713 mv.mv_vdid = vd->vdev_id; 714 mv.mv_msid = m->ms_id; 715 mv.mv_start = m->ms_start; 716 mv.mv_end = m->ms_start + m->ms_size; 717 zfs_btree_create(&mv.mv_livelist_allocs, 718 livelist_block_compare, 719 sizeof (sublivelist_verify_block_t)); 720 721 mv_populate_livelist_allocs(&mv, &sv); 722 723 spacemap_check_ms_sm(m->ms_sm, &mv); 724 spacemap_check_sm_log(spa, &mv); 725 726 range_tree_vacate(mv.mv_allocated, NULL, NULL); 727 range_tree_destroy(mv.mv_allocated); 728 zfs_btree_clear(&mv.mv_livelist_allocs); 729 zfs_btree_destroy(&mv.mv_livelist_allocs); 730 } 731 } 732 (void) fprintf(stderr, "\n"); 733 734 /* 735 * If there are any segments in the leftover tree after we walked 736 * through all the metaslabs in the concrete vdevs then this means 737 * that we have segments in the livelists that belong to indirect 738 * vdevs and are marked as allocated. 739 */ 740 if (zfs_btree_numnodes(&sv.sv_leftover) == 0) { 741 zfs_btree_destroy(&sv.sv_leftover); 742 return; 743 } 744 (void) printf("ERROR: Found livelist blocks marked as allocated " 745 "for indirect vdevs:\n"); 746 747 zfs_btree_index_t *where = NULL; 748 sublivelist_verify_block_t *svb; 749 while ((svb = zfs_btree_destroy_nodes(&sv.sv_leftover, &where)) != 750 NULL) { 751 int vdev_id = DVA_GET_VDEV(&svb->svb_dva); 752 ASSERT3U(vdev_id, <, rvd->vdev_children); 753 vdev_t *vd = rvd->vdev_child[vdev_id]; 754 ASSERT(!vdev_is_concrete(vd)); 755 (void) printf("<%d:%llx:%llx> TXG %llx\n", 756 vdev_id, (u_longlong_t)DVA_GET_OFFSET(&svb->svb_dva), 757 (u_longlong_t)DVA_GET_ASIZE(&svb->svb_dva), 758 (u_longlong_t)svb->svb_allocated_txg); 759 } 760 (void) printf("\n"); 761 zfs_btree_destroy(&sv.sv_leftover); 762 } 763 764 /* 765 * These libumem hooks provide a reasonable set of defaults for the allocator's 766 * debugging facilities. 767 */ 768 const char * 769 _umem_debug_init(void) 770 { 771 return ("default,verbose"); /* $UMEM_DEBUG setting */ 772 } 773 774 const char * 775 _umem_logging_init(void) 776 { 777 return ("fail,contents"); /* $UMEM_LOGGING setting */ 778 } 779 780 static void 781 usage(void) 782 { 783 (void) fprintf(stderr, 784 "Usage:\t%s [-AbcdDFGhikLMPsvXy] [-e [-V] [-p <path> ...]] " 785 "[-I <inflight I/Os>]\n" 786 "\t\t[-o <var>=<value>]... [-t <txg>] [-U <cache>] [-x <dumpdir>]\n" 787 "\t\t[<poolname>[/<dataset | objset id>] [<object | range> ...]]\n" 788 "\t%s [-AdiPv] [-e [-V] [-p <path> ...]] [-U <cache>]\n" 789 "\t\t[<poolname>[/<dataset | objset id>] [<object | range> ...]\n" 790 "\t%s [-v] <bookmark>\n" 791 "\t%s -C [-A] [-U <cache>]\n" 792 "\t%s -l [-Aqu] <device>\n" 793 "\t%s -m [-AFLPX] [-e [-V] [-p <path> ...]] [-t <txg>] " 794 "[-U <cache>]\n\t\t<poolname> [<vdev> [<metaslab> ...]]\n" 795 "\t%s -O <dataset> <path>\n" 796 "\t%s -r <dataset> <path> <destination>\n" 797 "\t%s -R [-A] [-e [-V] [-p <path> ...]] [-U <cache>]\n" 798 "\t\t<poolname> <vdev>:<offset>:<size>[:<flags>]\n" 799 "\t%s -E [-A] word0:word1:...:word15\n" 800 "\t%s -S [-AP] [-e [-V] [-p <path> ...]] [-U <cache>] " 801 "<poolname>\n\n", 802 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, 803 cmdname, cmdname, cmdname, cmdname); 804 805 (void) fprintf(stderr, " Dataset name must include at least one " 806 "separator character '/' or '@'\n"); 807 (void) fprintf(stderr, " If dataset name is specified, only that " 808 "dataset is dumped\n"); 809 (void) fprintf(stderr, " If object numbers or object number " 810 "ranges are specified, only those\n" 811 " objects or ranges are dumped.\n\n"); 812 (void) fprintf(stderr, 813 " Object ranges take the form <start>:<end>[:<flags>]\n" 814 " start Starting object number\n" 815 " end Ending object number, or -1 for no upper bound\n" 816 " flags Optional flags to select object types:\n" 817 " A All objects (this is the default)\n" 818 " d ZFS directories\n" 819 " f ZFS files \n" 820 " m SPA space maps\n" 821 " z ZAPs\n" 822 " - Negate effect of next flag\n\n"); 823 (void) fprintf(stderr, " Options to control amount of output:\n"); 824 (void) fprintf(stderr, " -b --block-stats " 825 "block statistics\n"); 826 (void) fprintf(stderr, " -c --checksum " 827 "checksum all metadata (twice for all data) blocks\n"); 828 (void) fprintf(stderr, " -C --config " 829 "config (or cachefile if alone)\n"); 830 (void) fprintf(stderr, " -d --datasets " 831 "dataset(s)\n"); 832 (void) fprintf(stderr, " -D --dedup-stats " 833 "dedup statistics\n"); 834 (void) fprintf(stderr, " -E --embedded-block-pointer=INTEGER\n" 835 " decode and display block " 836 "from an embedded block pointer\n"); 837 (void) fprintf(stderr, " -h --history " 838 "pool history\n"); 839 (void) fprintf(stderr, " -i --intent-logs " 840 "intent logs\n"); 841 (void) fprintf(stderr, " -l --label " 842 "read label contents\n"); 843 (void) fprintf(stderr, " -k --checkpointed-state " 844 "examine the checkpointed state of the pool\n"); 845 (void) fprintf(stderr, " -L --disable-leak-tracking " 846 "disable leak tracking (do not load spacemaps)\n"); 847 (void) fprintf(stderr, " -m --metaslabs " 848 "metaslabs\n"); 849 (void) fprintf(stderr, " -M --metaslab-groups " 850 "metaslab groups\n"); 851 (void) fprintf(stderr, " -O --object-lookups " 852 "perform object lookups by path\n"); 853 (void) fprintf(stderr, " -r --copy-object " 854 "copy an object by path to file\n"); 855 (void) fprintf(stderr, " -R --read-block " 856 "read and display block from a device\n"); 857 (void) fprintf(stderr, " -s --io-stats " 858 "report stats on zdb's I/O\n"); 859 (void) fprintf(stderr, " -S --simulate-dedup " 860 "simulate dedup to measure effect\n"); 861 (void) fprintf(stderr, " -v --verbose " 862 "verbose (applies to all others)\n"); 863 (void) fprintf(stderr, " -y --livelist " 864 "perform livelist and metaslab validation on any livelists being " 865 "deleted\n\n"); 866 (void) fprintf(stderr, " Below options are intended for use " 867 "with other options:\n"); 868 (void) fprintf(stderr, " -A --ignore-assertions " 869 "ignore assertions (-A), enable panic recovery (-AA) or both " 870 "(-AAA)\n"); 871 (void) fprintf(stderr, " -e --exported " 872 "pool is exported/destroyed/has altroot/not in a cachefile\n"); 873 (void) fprintf(stderr, " -F --automatic-rewind " 874 "attempt automatic rewind within safe range of transaction " 875 "groups\n"); 876 (void) fprintf(stderr, " -G --dump-debug-msg " 877 "dump zfs_dbgmsg buffer before exiting\n"); 878 (void) fprintf(stderr, " -I --inflight=INTEGER " 879 "specify the maximum number of checksumming I/Os " 880 "[default is 200]\n"); 881 (void) fprintf(stderr, " -o --option=\"OPTION=INTEGER\" " 882 "set global variable to an unsigned 32-bit integer\n"); 883 (void) fprintf(stderr, " -p --path==PATH " 884 "use one or more with -e to specify path to vdev dir\n"); 885 (void) fprintf(stderr, " -P --parseable " 886 "print numbers in parseable form\n"); 887 (void) fprintf(stderr, " -q --skip-label " 888 "don't print label contents\n"); 889 (void) fprintf(stderr, " -t --txg=INTEGER " 890 "highest txg to use when searching for uberblocks\n"); 891 (void) fprintf(stderr, " -u --uberblock " 892 "uberblock\n"); 893 (void) fprintf(stderr, " -U --cachefile=PATH " 894 "use alternate cachefile\n"); 895 (void) fprintf(stderr, " -V --verbatim " 896 "do verbatim import\n"); 897 (void) fprintf(stderr, " -x --dump-blocks=PATH " 898 "dump all read blocks into specified directory\n"); 899 (void) fprintf(stderr, " -X --extreme-rewind " 900 "attempt extreme rewind (does not work with dataset)\n"); 901 (void) fprintf(stderr, " -Y --all-reconstruction " 902 "attempt all reconstruction combinations for split blocks\n"); 903 (void) fprintf(stderr, " -Z --zstd-headers " 904 "show ZSTD headers \n"); 905 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 906 "to make only that option verbose\n"); 907 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 908 exit(1); 909 } 910 911 static void 912 dump_debug_buffer(void) 913 { 914 if (dump_opt['G']) { 915 (void) printf("\n"); 916 (void) fflush(stdout); 917 zfs_dbgmsg_print("zdb"); 918 } 919 } 920 921 /* 922 * Called for usage errors that are discovered after a call to spa_open(), 923 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. 924 */ 925 926 static void 927 fatal(const char *fmt, ...) 928 { 929 va_list ap; 930 931 va_start(ap, fmt); 932 (void) fprintf(stderr, "%s: ", cmdname); 933 (void) vfprintf(stderr, fmt, ap); 934 va_end(ap); 935 (void) fprintf(stderr, "\n"); 936 937 dump_debug_buffer(); 938 939 exit(1); 940 } 941 942 static void 943 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 944 { 945 (void) size; 946 nvlist_t *nv; 947 size_t nvsize = *(uint64_t *)data; 948 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 949 950 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH)); 951 952 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 953 954 umem_free(packed, nvsize); 955 956 dump_nvlist(nv, 8); 957 958 nvlist_free(nv); 959 } 960 961 static void 962 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size) 963 { 964 (void) os, (void) object, (void) size; 965 spa_history_phys_t *shp = data; 966 967 if (shp == NULL) 968 return; 969 970 (void) printf("\t\tpool_create_len = %llu\n", 971 (u_longlong_t)shp->sh_pool_create_len); 972 (void) printf("\t\tphys_max_off = %llu\n", 973 (u_longlong_t)shp->sh_phys_max_off); 974 (void) printf("\t\tbof = %llu\n", 975 (u_longlong_t)shp->sh_bof); 976 (void) printf("\t\teof = %llu\n", 977 (u_longlong_t)shp->sh_eof); 978 (void) printf("\t\trecords_lost = %llu\n", 979 (u_longlong_t)shp->sh_records_lost); 980 } 981 982 static void 983 zdb_nicenum(uint64_t num, char *buf, size_t buflen) 984 { 985 if (dump_opt['P']) 986 (void) snprintf(buf, buflen, "%llu", (longlong_t)num); 987 else 988 nicenum(num, buf, sizeof (buf)); 989 } 990 991 static const char histo_stars[] = "****************************************"; 992 static const uint64_t histo_width = sizeof (histo_stars) - 1; 993 994 static void 995 dump_histogram(const uint64_t *histo, int size, int offset) 996 { 997 int i; 998 int minidx = size - 1; 999 int maxidx = 0; 1000 uint64_t max = 0; 1001 1002 for (i = 0; i < size; i++) { 1003 if (histo[i] > max) 1004 max = histo[i]; 1005 if (histo[i] > 0 && i > maxidx) 1006 maxidx = i; 1007 if (histo[i] > 0 && i < minidx) 1008 minidx = i; 1009 } 1010 1011 if (max < histo_width) 1012 max = histo_width; 1013 1014 for (i = minidx; i <= maxidx; i++) { 1015 (void) printf("\t\t\t%3u: %6llu %s\n", 1016 i + offset, (u_longlong_t)histo[i], 1017 &histo_stars[(max - histo[i]) * histo_width / max]); 1018 } 1019 } 1020 1021 static void 1022 dump_zap_stats(objset_t *os, uint64_t object) 1023 { 1024 int error; 1025 zap_stats_t zs; 1026 1027 error = zap_get_stats(os, object, &zs); 1028 if (error) 1029 return; 1030 1031 if (zs.zs_ptrtbl_len == 0) { 1032 ASSERT(zs.zs_num_blocks == 1); 1033 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 1034 (u_longlong_t)zs.zs_blocksize, 1035 (u_longlong_t)zs.zs_num_entries); 1036 return; 1037 } 1038 1039 (void) printf("\tFat ZAP stats:\n"); 1040 1041 (void) printf("\t\tPointer table:\n"); 1042 (void) printf("\t\t\t%llu elements\n", 1043 (u_longlong_t)zs.zs_ptrtbl_len); 1044 (void) printf("\t\t\tzt_blk: %llu\n", 1045 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 1046 (void) printf("\t\t\tzt_numblks: %llu\n", 1047 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 1048 (void) printf("\t\t\tzt_shift: %llu\n", 1049 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 1050 (void) printf("\t\t\tzt_blks_copied: %llu\n", 1051 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 1052 (void) printf("\t\t\tzt_nextblk: %llu\n", 1053 (u_longlong_t)zs.zs_ptrtbl_nextblk); 1054 1055 (void) printf("\t\tZAP entries: %llu\n", 1056 (u_longlong_t)zs.zs_num_entries); 1057 (void) printf("\t\tLeaf blocks: %llu\n", 1058 (u_longlong_t)zs.zs_num_leafs); 1059 (void) printf("\t\tTotal blocks: %llu\n", 1060 (u_longlong_t)zs.zs_num_blocks); 1061 (void) printf("\t\tzap_block_type: 0x%llx\n", 1062 (u_longlong_t)zs.zs_block_type); 1063 (void) printf("\t\tzap_magic: 0x%llx\n", 1064 (u_longlong_t)zs.zs_magic); 1065 (void) printf("\t\tzap_salt: 0x%llx\n", 1066 (u_longlong_t)zs.zs_salt); 1067 1068 (void) printf("\t\tLeafs with 2^n pointers:\n"); 1069 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0); 1070 1071 (void) printf("\t\tBlocks with n*5 entries:\n"); 1072 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0); 1073 1074 (void) printf("\t\tBlocks n/10 full:\n"); 1075 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0); 1076 1077 (void) printf("\t\tEntries with n chunks:\n"); 1078 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0); 1079 1080 (void) printf("\t\tBuckets with n entries:\n"); 1081 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0); 1082 } 1083 1084 static void 1085 dump_none(objset_t *os, uint64_t object, void *data, size_t size) 1086 { 1087 (void) os, (void) object, (void) data, (void) size; 1088 } 1089 1090 static void 1091 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size) 1092 { 1093 (void) os, (void) object, (void) data, (void) size; 1094 (void) printf("\tUNKNOWN OBJECT TYPE\n"); 1095 } 1096 1097 static void 1098 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 1099 { 1100 (void) os, (void) object, (void) data, (void) size; 1101 } 1102 1103 static void 1104 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 1105 { 1106 uint64_t *arr; 1107 uint64_t oursize; 1108 if (dump_opt['d'] < 6) 1109 return; 1110 1111 if (data == NULL) { 1112 dmu_object_info_t doi; 1113 1114 VERIFY0(dmu_object_info(os, object, &doi)); 1115 size = doi.doi_max_offset; 1116 /* 1117 * We cap the size at 1 mebibyte here to prevent 1118 * allocation failures and nigh-infinite printing if the 1119 * object is extremely large. 1120 */ 1121 oursize = MIN(size, 1 << 20); 1122 arr = kmem_alloc(oursize, KM_SLEEP); 1123 1124 int err = dmu_read(os, object, 0, oursize, arr, 0); 1125 if (err != 0) { 1126 (void) printf("got error %u from dmu_read\n", err); 1127 kmem_free(arr, oursize); 1128 return; 1129 } 1130 } else { 1131 /* 1132 * Even though the allocation is already done in this code path, 1133 * we still cap the size to prevent excessive printing. 1134 */ 1135 oursize = MIN(size, 1 << 20); 1136 arr = data; 1137 } 1138 1139 if (size == 0) { 1140 (void) printf("\t\t[]\n"); 1141 return; 1142 } 1143 1144 (void) printf("\t\t[%0llx", (u_longlong_t)arr[0]); 1145 for (size_t i = 1; i * sizeof (uint64_t) < oursize; i++) { 1146 if (i % 4 != 0) 1147 (void) printf(", %0llx", (u_longlong_t)arr[i]); 1148 else 1149 (void) printf(",\n\t\t%0llx", (u_longlong_t)arr[i]); 1150 } 1151 if (oursize != size) 1152 (void) printf(", ... "); 1153 (void) printf("]\n"); 1154 1155 if (data == NULL) 1156 kmem_free(arr, oursize); 1157 } 1158 1159 static void 1160 dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 1161 { 1162 (void) data, (void) size; 1163 zap_cursor_t zc; 1164 zap_attribute_t attr; 1165 void *prop; 1166 unsigned i; 1167 1168 dump_zap_stats(os, object); 1169 (void) printf("\n"); 1170 1171 for (zap_cursor_init(&zc, os, object); 1172 zap_cursor_retrieve(&zc, &attr) == 0; 1173 zap_cursor_advance(&zc)) { 1174 (void) printf("\t\t%s = ", attr.za_name); 1175 if (attr.za_num_integers == 0) { 1176 (void) printf("\n"); 1177 continue; 1178 } 1179 prop = umem_zalloc(attr.za_num_integers * 1180 attr.za_integer_length, UMEM_NOFAIL); 1181 (void) zap_lookup(os, object, attr.za_name, 1182 attr.za_integer_length, attr.za_num_integers, prop); 1183 if (attr.za_integer_length == 1) { 1184 if (strcmp(attr.za_name, 1185 DSL_CRYPTO_KEY_MASTER_KEY) == 0 || 1186 strcmp(attr.za_name, 1187 DSL_CRYPTO_KEY_HMAC_KEY) == 0 || 1188 strcmp(attr.za_name, DSL_CRYPTO_KEY_IV) == 0 || 1189 strcmp(attr.za_name, DSL_CRYPTO_KEY_MAC) == 0 || 1190 strcmp(attr.za_name, DMU_POOL_CHECKSUM_SALT) == 0) { 1191 uint8_t *u8 = prop; 1192 1193 for (i = 0; i < attr.za_num_integers; i++) { 1194 (void) printf("%02x", u8[i]); 1195 } 1196 } else { 1197 (void) printf("%s", (char *)prop); 1198 } 1199 } else { 1200 for (i = 0; i < attr.za_num_integers; i++) { 1201 switch (attr.za_integer_length) { 1202 case 2: 1203 (void) printf("%u ", 1204 ((uint16_t *)prop)[i]); 1205 break; 1206 case 4: 1207 (void) printf("%u ", 1208 ((uint32_t *)prop)[i]); 1209 break; 1210 case 8: 1211 (void) printf("%lld ", 1212 (u_longlong_t)((int64_t *)prop)[i]); 1213 break; 1214 } 1215 } 1216 } 1217 (void) printf("\n"); 1218 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 1219 } 1220 zap_cursor_fini(&zc); 1221 } 1222 1223 static void 1224 dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size) 1225 { 1226 bpobj_phys_t *bpop = data; 1227 uint64_t i; 1228 char bytes[32], comp[32], uncomp[32]; 1229 1230 /* make sure the output won't get truncated */ 1231 _Static_assert(sizeof (bytes) >= NN_NUMBUF_SZ, "bytes truncated"); 1232 _Static_assert(sizeof (comp) >= NN_NUMBUF_SZ, "comp truncated"); 1233 _Static_assert(sizeof (uncomp) >= NN_NUMBUF_SZ, "uncomp truncated"); 1234 1235 if (bpop == NULL) 1236 return; 1237 1238 zdb_nicenum(bpop->bpo_bytes, bytes, sizeof (bytes)); 1239 zdb_nicenum(bpop->bpo_comp, comp, sizeof (comp)); 1240 zdb_nicenum(bpop->bpo_uncomp, uncomp, sizeof (uncomp)); 1241 1242 (void) printf("\t\tnum_blkptrs = %llu\n", 1243 (u_longlong_t)bpop->bpo_num_blkptrs); 1244 (void) printf("\t\tbytes = %s\n", bytes); 1245 if (size >= BPOBJ_SIZE_V1) { 1246 (void) printf("\t\tcomp = %s\n", comp); 1247 (void) printf("\t\tuncomp = %s\n", uncomp); 1248 } 1249 if (size >= BPOBJ_SIZE_V2) { 1250 (void) printf("\t\tsubobjs = %llu\n", 1251 (u_longlong_t)bpop->bpo_subobjs); 1252 (void) printf("\t\tnum_subobjs = %llu\n", 1253 (u_longlong_t)bpop->bpo_num_subobjs); 1254 } 1255 if (size >= sizeof (*bpop)) { 1256 (void) printf("\t\tnum_freed = %llu\n", 1257 (u_longlong_t)bpop->bpo_num_freed); 1258 } 1259 1260 if (dump_opt['d'] < 5) 1261 return; 1262 1263 for (i = 0; i < bpop->bpo_num_blkptrs; i++) { 1264 char blkbuf[BP_SPRINTF_LEN]; 1265 blkptr_t bp; 1266 1267 int err = dmu_read(os, object, 1268 i * sizeof (bp), sizeof (bp), &bp, 0); 1269 if (err != 0) { 1270 (void) printf("got error %u from dmu_read\n", err); 1271 break; 1272 } 1273 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp, 1274 BP_GET_FREE(&bp)); 1275 (void) printf("\t%s\n", blkbuf); 1276 } 1277 } 1278 1279 static void 1280 dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size) 1281 { 1282 (void) data, (void) size; 1283 dmu_object_info_t doi; 1284 int64_t i; 1285 1286 VERIFY0(dmu_object_info(os, object, &doi)); 1287 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP); 1288 1289 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0); 1290 if (err != 0) { 1291 (void) printf("got error %u from dmu_read\n", err); 1292 kmem_free(subobjs, doi.doi_max_offset); 1293 return; 1294 } 1295 1296 int64_t last_nonzero = -1; 1297 for (i = 0; i < doi.doi_max_offset / 8; i++) { 1298 if (subobjs[i] != 0) 1299 last_nonzero = i; 1300 } 1301 1302 for (i = 0; i <= last_nonzero; i++) { 1303 (void) printf("\t%llu\n", (u_longlong_t)subobjs[i]); 1304 } 1305 kmem_free(subobjs, doi.doi_max_offset); 1306 } 1307 1308 static void 1309 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size) 1310 { 1311 (void) data, (void) size; 1312 dump_zap_stats(os, object); 1313 /* contents are printed elsewhere, properly decoded */ 1314 } 1315 1316 static void 1317 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size) 1318 { 1319 (void) data, (void) size; 1320 zap_cursor_t zc; 1321 zap_attribute_t attr; 1322 1323 dump_zap_stats(os, object); 1324 (void) printf("\n"); 1325 1326 for (zap_cursor_init(&zc, os, object); 1327 zap_cursor_retrieve(&zc, &attr) == 0; 1328 zap_cursor_advance(&zc)) { 1329 (void) printf("\t\t%s = ", attr.za_name); 1330 if (attr.za_num_integers == 0) { 1331 (void) printf("\n"); 1332 continue; 1333 } 1334 (void) printf(" %llx : [%d:%d:%d]\n", 1335 (u_longlong_t)attr.za_first_integer, 1336 (int)ATTR_LENGTH(attr.za_first_integer), 1337 (int)ATTR_BSWAP(attr.za_first_integer), 1338 (int)ATTR_NUM(attr.za_first_integer)); 1339 } 1340 zap_cursor_fini(&zc); 1341 } 1342 1343 static void 1344 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size) 1345 { 1346 (void) data, (void) size; 1347 zap_cursor_t zc; 1348 zap_attribute_t attr; 1349 uint16_t *layout_attrs; 1350 unsigned i; 1351 1352 dump_zap_stats(os, object); 1353 (void) printf("\n"); 1354 1355 for (zap_cursor_init(&zc, os, object); 1356 zap_cursor_retrieve(&zc, &attr) == 0; 1357 zap_cursor_advance(&zc)) { 1358 (void) printf("\t\t%s = [", attr.za_name); 1359 if (attr.za_num_integers == 0) { 1360 (void) printf("\n"); 1361 continue; 1362 } 1363 1364 VERIFY(attr.za_integer_length == 2); 1365 layout_attrs = umem_zalloc(attr.za_num_integers * 1366 attr.za_integer_length, UMEM_NOFAIL); 1367 1368 VERIFY(zap_lookup(os, object, attr.za_name, 1369 attr.za_integer_length, 1370 attr.za_num_integers, layout_attrs) == 0); 1371 1372 for (i = 0; i != attr.za_num_integers; i++) 1373 (void) printf(" %d ", (int)layout_attrs[i]); 1374 (void) printf("]\n"); 1375 umem_free(layout_attrs, 1376 attr.za_num_integers * attr.za_integer_length); 1377 } 1378 zap_cursor_fini(&zc); 1379 } 1380 1381 static void 1382 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 1383 { 1384 (void) data, (void) size; 1385 zap_cursor_t zc; 1386 zap_attribute_t attr; 1387 const char *typenames[] = { 1388 /* 0 */ "not specified", 1389 /* 1 */ "FIFO", 1390 /* 2 */ "Character Device", 1391 /* 3 */ "3 (invalid)", 1392 /* 4 */ "Directory", 1393 /* 5 */ "5 (invalid)", 1394 /* 6 */ "Block Device", 1395 /* 7 */ "7 (invalid)", 1396 /* 8 */ "Regular File", 1397 /* 9 */ "9 (invalid)", 1398 /* 10 */ "Symbolic Link", 1399 /* 11 */ "11 (invalid)", 1400 /* 12 */ "Socket", 1401 /* 13 */ "Door", 1402 /* 14 */ "Event Port", 1403 /* 15 */ "15 (invalid)", 1404 }; 1405 1406 dump_zap_stats(os, object); 1407 (void) printf("\n"); 1408 1409 for (zap_cursor_init(&zc, os, object); 1410 zap_cursor_retrieve(&zc, &attr) == 0; 1411 zap_cursor_advance(&zc)) { 1412 (void) printf("\t\t%s = %lld (type: %s)\n", 1413 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 1414 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 1415 } 1416 zap_cursor_fini(&zc); 1417 } 1418 1419 static int 1420 get_dtl_refcount(vdev_t *vd) 1421 { 1422 int refcount = 0; 1423 1424 if (vd->vdev_ops->vdev_op_leaf) { 1425 space_map_t *sm = vd->vdev_dtl_sm; 1426 1427 if (sm != NULL && 1428 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 1429 return (1); 1430 return (0); 1431 } 1432 1433 for (unsigned c = 0; c < vd->vdev_children; c++) 1434 refcount += get_dtl_refcount(vd->vdev_child[c]); 1435 return (refcount); 1436 } 1437 1438 static int 1439 get_metaslab_refcount(vdev_t *vd) 1440 { 1441 int refcount = 0; 1442 1443 if (vd->vdev_top == vd) { 1444 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 1445 space_map_t *sm = vd->vdev_ms[m]->ms_sm; 1446 1447 if (sm != NULL && 1448 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 1449 refcount++; 1450 } 1451 } 1452 for (unsigned c = 0; c < vd->vdev_children; c++) 1453 refcount += get_metaslab_refcount(vd->vdev_child[c]); 1454 1455 return (refcount); 1456 } 1457 1458 static int 1459 get_obsolete_refcount(vdev_t *vd) 1460 { 1461 uint64_t obsolete_sm_object; 1462 int refcount = 0; 1463 1464 VERIFY0(vdev_obsolete_sm_object(vd, &obsolete_sm_object)); 1465 if (vd->vdev_top == vd && obsolete_sm_object != 0) { 1466 dmu_object_info_t doi; 1467 VERIFY0(dmu_object_info(vd->vdev_spa->spa_meta_objset, 1468 obsolete_sm_object, &doi)); 1469 if (doi.doi_bonus_size == sizeof (space_map_phys_t)) { 1470 refcount++; 1471 } 1472 } else { 1473 ASSERT3P(vd->vdev_obsolete_sm, ==, NULL); 1474 ASSERT3U(obsolete_sm_object, ==, 0); 1475 } 1476 for (unsigned c = 0; c < vd->vdev_children; c++) { 1477 refcount += get_obsolete_refcount(vd->vdev_child[c]); 1478 } 1479 1480 return (refcount); 1481 } 1482 1483 static int 1484 get_prev_obsolete_spacemap_refcount(spa_t *spa) 1485 { 1486 uint64_t prev_obj = 1487 spa->spa_condensing_indirect_phys.scip_prev_obsolete_sm_object; 1488 if (prev_obj != 0) { 1489 dmu_object_info_t doi; 1490 VERIFY0(dmu_object_info(spa->spa_meta_objset, prev_obj, &doi)); 1491 if (doi.doi_bonus_size == sizeof (space_map_phys_t)) { 1492 return (1); 1493 } 1494 } 1495 return (0); 1496 } 1497 1498 static int 1499 get_checkpoint_refcount(vdev_t *vd) 1500 { 1501 int refcount = 0; 1502 1503 if (vd->vdev_top == vd && vd->vdev_top_zap != 0 && 1504 zap_contains(spa_meta_objset(vd->vdev_spa), 1505 vd->vdev_top_zap, VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) == 0) 1506 refcount++; 1507 1508 for (uint64_t c = 0; c < vd->vdev_children; c++) 1509 refcount += get_checkpoint_refcount(vd->vdev_child[c]); 1510 1511 return (refcount); 1512 } 1513 1514 static int 1515 get_log_spacemap_refcount(spa_t *spa) 1516 { 1517 return (avl_numnodes(&spa->spa_sm_logs_by_txg)); 1518 } 1519 1520 static int 1521 verify_spacemap_refcounts(spa_t *spa) 1522 { 1523 uint64_t expected_refcount = 0; 1524 uint64_t actual_refcount; 1525 1526 (void) feature_get_refcount(spa, 1527 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM], 1528 &expected_refcount); 1529 actual_refcount = get_dtl_refcount(spa->spa_root_vdev); 1530 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev); 1531 actual_refcount += get_obsolete_refcount(spa->spa_root_vdev); 1532 actual_refcount += get_prev_obsolete_spacemap_refcount(spa); 1533 actual_refcount += get_checkpoint_refcount(spa->spa_root_vdev); 1534 actual_refcount += get_log_spacemap_refcount(spa); 1535 1536 if (expected_refcount != actual_refcount) { 1537 (void) printf("space map refcount mismatch: expected %lld != " 1538 "actual %lld\n", 1539 (longlong_t)expected_refcount, 1540 (longlong_t)actual_refcount); 1541 return (2); 1542 } 1543 return (0); 1544 } 1545 1546 static void 1547 dump_spacemap(objset_t *os, space_map_t *sm) 1548 { 1549 const char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 1550 "INVALID", "INVALID", "INVALID", "INVALID" }; 1551 1552 if (sm == NULL) 1553 return; 1554 1555 (void) printf("space map object %llu:\n", 1556 (longlong_t)sm->sm_object); 1557 (void) printf(" smp_length = 0x%llx\n", 1558 (longlong_t)sm->sm_phys->smp_length); 1559 (void) printf(" smp_alloc = 0x%llx\n", 1560 (longlong_t)sm->sm_phys->smp_alloc); 1561 1562 if (dump_opt['d'] < 6 && dump_opt['m'] < 4) 1563 return; 1564 1565 /* 1566 * Print out the freelist entries in both encoded and decoded form. 1567 */ 1568 uint8_t mapshift = sm->sm_shift; 1569 int64_t alloc = 0; 1570 uint64_t word, entry_id = 0; 1571 for (uint64_t offset = 0; offset < space_map_length(sm); 1572 offset += sizeof (word)) { 1573 1574 VERIFY0(dmu_read(os, space_map_object(sm), offset, 1575 sizeof (word), &word, DMU_READ_PREFETCH)); 1576 1577 if (sm_entry_is_debug(word)) { 1578 uint64_t de_txg = SM_DEBUG_TXG_DECODE(word); 1579 uint64_t de_sync_pass = SM_DEBUG_SYNCPASS_DECODE(word); 1580 if (de_txg == 0) { 1581 (void) printf( 1582 "\t [%6llu] PADDING\n", 1583 (u_longlong_t)entry_id); 1584 } else { 1585 (void) printf( 1586 "\t [%6llu] %s: txg %llu pass %llu\n", 1587 (u_longlong_t)entry_id, 1588 ddata[SM_DEBUG_ACTION_DECODE(word)], 1589 (u_longlong_t)de_txg, 1590 (u_longlong_t)de_sync_pass); 1591 } 1592 entry_id++; 1593 continue; 1594 } 1595 1596 uint8_t words; 1597 char entry_type; 1598 uint64_t entry_off, entry_run, entry_vdev = SM_NO_VDEVID; 1599 1600 if (sm_entry_is_single_word(word)) { 1601 entry_type = (SM_TYPE_DECODE(word) == SM_ALLOC) ? 1602 'A' : 'F'; 1603 entry_off = (SM_OFFSET_DECODE(word) << mapshift) + 1604 sm->sm_start; 1605 entry_run = SM_RUN_DECODE(word) << mapshift; 1606 words = 1; 1607 } else { 1608 /* it is a two-word entry so we read another word */ 1609 ASSERT(sm_entry_is_double_word(word)); 1610 1611 uint64_t extra_word; 1612 offset += sizeof (extra_word); 1613 VERIFY0(dmu_read(os, space_map_object(sm), offset, 1614 sizeof (extra_word), &extra_word, 1615 DMU_READ_PREFETCH)); 1616 1617 ASSERT3U(offset, <=, space_map_length(sm)); 1618 1619 entry_run = SM2_RUN_DECODE(word) << mapshift; 1620 entry_vdev = SM2_VDEV_DECODE(word); 1621 entry_type = (SM2_TYPE_DECODE(extra_word) == SM_ALLOC) ? 1622 'A' : 'F'; 1623 entry_off = (SM2_OFFSET_DECODE(extra_word) << 1624 mapshift) + sm->sm_start; 1625 words = 2; 1626 } 1627 1628 (void) printf("\t [%6llu] %c range:" 1629 " %010llx-%010llx size: %06llx vdev: %06llu words: %u\n", 1630 (u_longlong_t)entry_id, 1631 entry_type, (u_longlong_t)entry_off, 1632 (u_longlong_t)(entry_off + entry_run), 1633 (u_longlong_t)entry_run, 1634 (u_longlong_t)entry_vdev, words); 1635 1636 if (entry_type == 'A') 1637 alloc += entry_run; 1638 else 1639 alloc -= entry_run; 1640 entry_id++; 1641 } 1642 if (alloc != space_map_allocated(sm)) { 1643 (void) printf("space_map_object alloc (%lld) INCONSISTENT " 1644 "with space map summary (%lld)\n", 1645 (longlong_t)space_map_allocated(sm), (longlong_t)alloc); 1646 } 1647 } 1648 1649 static void 1650 dump_metaslab_stats(metaslab_t *msp) 1651 { 1652 char maxbuf[32]; 1653 range_tree_t *rt = msp->ms_allocatable; 1654 zfs_btree_t *t = &msp->ms_allocatable_by_size; 1655 int free_pct = range_tree_space(rt) * 100 / msp->ms_size; 1656 1657 /* max sure nicenum has enough space */ 1658 _Static_assert(sizeof (maxbuf) >= NN_NUMBUF_SZ, "maxbuf truncated"); 1659 1660 zdb_nicenum(metaslab_largest_allocatable(msp), maxbuf, sizeof (maxbuf)); 1661 1662 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", 1663 "segments", zfs_btree_numnodes(t), "maxsize", maxbuf, 1664 "freepct", free_pct); 1665 (void) printf("\tIn-memory histogram:\n"); 1666 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 1667 } 1668 1669 static void 1670 dump_metaslab(metaslab_t *msp) 1671 { 1672 vdev_t *vd = msp->ms_group->mg_vd; 1673 spa_t *spa = vd->vdev_spa; 1674 space_map_t *sm = msp->ms_sm; 1675 char freebuf[32]; 1676 1677 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf, 1678 sizeof (freebuf)); 1679 1680 (void) printf( 1681 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", 1682 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start, 1683 (u_longlong_t)space_map_object(sm), freebuf); 1684 1685 if (dump_opt['m'] > 2 && !dump_opt['L']) { 1686 mutex_enter(&msp->ms_lock); 1687 VERIFY0(metaslab_load(msp)); 1688 range_tree_stat_verify(msp->ms_allocatable); 1689 dump_metaslab_stats(msp); 1690 metaslab_unload(msp); 1691 mutex_exit(&msp->ms_lock); 1692 } 1693 1694 if (dump_opt['m'] > 1 && sm != NULL && 1695 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) { 1696 /* 1697 * The space map histogram represents free space in chunks 1698 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift). 1699 */ 1700 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n", 1701 (u_longlong_t)msp->ms_fragmentation); 1702 dump_histogram(sm->sm_phys->smp_histogram, 1703 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift); 1704 } 1705 1706 if (vd->vdev_ops == &vdev_draid_ops) 1707 ASSERT3U(msp->ms_size, <=, 1ULL << vd->vdev_ms_shift); 1708 else 1709 ASSERT3U(msp->ms_size, ==, 1ULL << vd->vdev_ms_shift); 1710 1711 dump_spacemap(spa->spa_meta_objset, msp->ms_sm); 1712 1713 if (spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP)) { 1714 (void) printf("\tFlush data:\n\tunflushed txg=%llu\n\n", 1715 (u_longlong_t)metaslab_unflushed_txg(msp)); 1716 } 1717 } 1718 1719 static void 1720 print_vdev_metaslab_header(vdev_t *vd) 1721 { 1722 vdev_alloc_bias_t alloc_bias = vd->vdev_alloc_bias; 1723 const char *bias_str = ""; 1724 if (alloc_bias == VDEV_BIAS_LOG || vd->vdev_islog) { 1725 bias_str = VDEV_ALLOC_BIAS_LOG; 1726 } else if (alloc_bias == VDEV_BIAS_SPECIAL) { 1727 bias_str = VDEV_ALLOC_BIAS_SPECIAL; 1728 } else if (alloc_bias == VDEV_BIAS_DEDUP) { 1729 bias_str = VDEV_ALLOC_BIAS_DEDUP; 1730 } 1731 1732 uint64_t ms_flush_data_obj = 0; 1733 if (vd->vdev_top_zap != 0) { 1734 int error = zap_lookup(spa_meta_objset(vd->vdev_spa), 1735 vd->vdev_top_zap, VDEV_TOP_ZAP_MS_UNFLUSHED_PHYS_TXGS, 1736 sizeof (uint64_t), 1, &ms_flush_data_obj); 1737 if (error != ENOENT) { 1738 ASSERT0(error); 1739 } 1740 } 1741 1742 (void) printf("\tvdev %10llu %s", 1743 (u_longlong_t)vd->vdev_id, bias_str); 1744 1745 if (ms_flush_data_obj != 0) { 1746 (void) printf(" ms_unflushed_phys object %llu", 1747 (u_longlong_t)ms_flush_data_obj); 1748 } 1749 1750 (void) printf("\n\t%-10s%5llu %-19s %-15s %-12s\n", 1751 "metaslabs", (u_longlong_t)vd->vdev_ms_count, 1752 "offset", "spacemap", "free"); 1753 (void) printf("\t%15s %19s %15s %12s\n", 1754 "---------------", "-------------------", 1755 "---------------", "------------"); 1756 } 1757 1758 static void 1759 dump_metaslab_groups(spa_t *spa, boolean_t show_special) 1760 { 1761 vdev_t *rvd = spa->spa_root_vdev; 1762 metaslab_class_t *mc = spa_normal_class(spa); 1763 metaslab_class_t *smc = spa_special_class(spa); 1764 uint64_t fragmentation; 1765 1766 metaslab_class_histogram_verify(mc); 1767 1768 for (unsigned c = 0; c < rvd->vdev_children; c++) { 1769 vdev_t *tvd = rvd->vdev_child[c]; 1770 metaslab_group_t *mg = tvd->vdev_mg; 1771 1772 if (mg == NULL || (mg->mg_class != mc && 1773 (!show_special || mg->mg_class != smc))) 1774 continue; 1775 1776 metaslab_group_histogram_verify(mg); 1777 mg->mg_fragmentation = metaslab_group_fragmentation(mg); 1778 1779 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t" 1780 "fragmentation", 1781 (u_longlong_t)tvd->vdev_id, 1782 (u_longlong_t)tvd->vdev_ms_count); 1783 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) { 1784 (void) printf("%3s\n", "-"); 1785 } else { 1786 (void) printf("%3llu%%\n", 1787 (u_longlong_t)mg->mg_fragmentation); 1788 } 1789 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 1790 } 1791 1792 (void) printf("\tpool %s\tfragmentation", spa_name(spa)); 1793 fragmentation = metaslab_class_fragmentation(mc); 1794 if (fragmentation == ZFS_FRAG_INVALID) 1795 (void) printf("\t%3s\n", "-"); 1796 else 1797 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation); 1798 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 1799 } 1800 1801 static void 1802 print_vdev_indirect(vdev_t *vd) 1803 { 1804 vdev_indirect_config_t *vic = &vd->vdev_indirect_config; 1805 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 1806 vdev_indirect_births_t *vib = vd->vdev_indirect_births; 1807 1808 if (vim == NULL) { 1809 ASSERT3P(vib, ==, NULL); 1810 return; 1811 } 1812 1813 ASSERT3U(vdev_indirect_mapping_object(vim), ==, 1814 vic->vic_mapping_object); 1815 ASSERT3U(vdev_indirect_births_object(vib), ==, 1816 vic->vic_births_object); 1817 1818 (void) printf("indirect births obj %llu:\n", 1819 (longlong_t)vic->vic_births_object); 1820 (void) printf(" vib_count = %llu\n", 1821 (longlong_t)vdev_indirect_births_count(vib)); 1822 for (uint64_t i = 0; i < vdev_indirect_births_count(vib); i++) { 1823 vdev_indirect_birth_entry_phys_t *cur_vibe = 1824 &vib->vib_entries[i]; 1825 (void) printf("\toffset %llx -> txg %llu\n", 1826 (longlong_t)cur_vibe->vibe_offset, 1827 (longlong_t)cur_vibe->vibe_phys_birth_txg); 1828 } 1829 (void) printf("\n"); 1830 1831 (void) printf("indirect mapping obj %llu:\n", 1832 (longlong_t)vic->vic_mapping_object); 1833 (void) printf(" vim_max_offset = 0x%llx\n", 1834 (longlong_t)vdev_indirect_mapping_max_offset(vim)); 1835 (void) printf(" vim_bytes_mapped = 0x%llx\n", 1836 (longlong_t)vdev_indirect_mapping_bytes_mapped(vim)); 1837 (void) printf(" vim_count = %llu\n", 1838 (longlong_t)vdev_indirect_mapping_num_entries(vim)); 1839 1840 if (dump_opt['d'] <= 5 && dump_opt['m'] <= 3) 1841 return; 1842 1843 uint32_t *counts = vdev_indirect_mapping_load_obsolete_counts(vim); 1844 1845 for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) { 1846 vdev_indirect_mapping_entry_phys_t *vimep = 1847 &vim->vim_entries[i]; 1848 (void) printf("\t<%llx:%llx:%llx> -> " 1849 "<%llx:%llx:%llx> (%x obsolete)\n", 1850 (longlong_t)vd->vdev_id, 1851 (longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep), 1852 (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst), 1853 (longlong_t)DVA_GET_VDEV(&vimep->vimep_dst), 1854 (longlong_t)DVA_GET_OFFSET(&vimep->vimep_dst), 1855 (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst), 1856 counts[i]); 1857 } 1858 (void) printf("\n"); 1859 1860 uint64_t obsolete_sm_object; 1861 VERIFY0(vdev_obsolete_sm_object(vd, &obsolete_sm_object)); 1862 if (obsolete_sm_object != 0) { 1863 objset_t *mos = vd->vdev_spa->spa_meta_objset; 1864 (void) printf("obsolete space map object %llu:\n", 1865 (u_longlong_t)obsolete_sm_object); 1866 ASSERT(vd->vdev_obsolete_sm != NULL); 1867 ASSERT3U(space_map_object(vd->vdev_obsolete_sm), ==, 1868 obsolete_sm_object); 1869 dump_spacemap(mos, vd->vdev_obsolete_sm); 1870 (void) printf("\n"); 1871 } 1872 } 1873 1874 static void 1875 dump_metaslabs(spa_t *spa) 1876 { 1877 vdev_t *vd, *rvd = spa->spa_root_vdev; 1878 uint64_t m, c = 0, children = rvd->vdev_children; 1879 1880 (void) printf("\nMetaslabs:\n"); 1881 1882 if (!dump_opt['d'] && zopt_metaslab_args > 0) { 1883 c = zopt_metaslab[0]; 1884 1885 if (c >= children) 1886 (void) fatal("bad vdev id: %llu", (u_longlong_t)c); 1887 1888 if (zopt_metaslab_args > 1) { 1889 vd = rvd->vdev_child[c]; 1890 print_vdev_metaslab_header(vd); 1891 1892 for (m = 1; m < zopt_metaslab_args; m++) { 1893 if (zopt_metaslab[m] < vd->vdev_ms_count) 1894 dump_metaslab( 1895 vd->vdev_ms[zopt_metaslab[m]]); 1896 else 1897 (void) fprintf(stderr, "bad metaslab " 1898 "number %llu\n", 1899 (u_longlong_t)zopt_metaslab[m]); 1900 } 1901 (void) printf("\n"); 1902 return; 1903 } 1904 children = c + 1; 1905 } 1906 for (; c < children; c++) { 1907 vd = rvd->vdev_child[c]; 1908 print_vdev_metaslab_header(vd); 1909 1910 print_vdev_indirect(vd); 1911 1912 for (m = 0; m < vd->vdev_ms_count; m++) 1913 dump_metaslab(vd->vdev_ms[m]); 1914 (void) printf("\n"); 1915 } 1916 } 1917 1918 static void 1919 dump_log_spacemaps(spa_t *spa) 1920 { 1921 if (!spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP)) 1922 return; 1923 1924 (void) printf("\nLog Space Maps in Pool:\n"); 1925 for (spa_log_sm_t *sls = avl_first(&spa->spa_sm_logs_by_txg); 1926 sls; sls = AVL_NEXT(&spa->spa_sm_logs_by_txg, sls)) { 1927 space_map_t *sm = NULL; 1928 VERIFY0(space_map_open(&sm, spa_meta_objset(spa), 1929 sls->sls_sm_obj, 0, UINT64_MAX, SPA_MINBLOCKSHIFT)); 1930 1931 (void) printf("Log Spacemap object %llu txg %llu\n", 1932 (u_longlong_t)sls->sls_sm_obj, (u_longlong_t)sls->sls_txg); 1933 dump_spacemap(spa->spa_meta_objset, sm); 1934 space_map_close(sm); 1935 } 1936 (void) printf("\n"); 1937 } 1938 1939 static void 1940 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) 1941 { 1942 const ddt_phys_t *ddp = dde->dde_phys; 1943 const ddt_key_t *ddk = &dde->dde_key; 1944 const char *types[4] = { "ditto", "single", "double", "triple" }; 1945 char blkbuf[BP_SPRINTF_LEN]; 1946 blkptr_t blk; 1947 int p; 1948 1949 for (p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 1950 if (ddp->ddp_phys_birth == 0) 1951 continue; 1952 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); 1953 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk); 1954 (void) printf("index %llx refcnt %llu %s %s\n", 1955 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, 1956 types[p], blkbuf); 1957 } 1958 } 1959 1960 static void 1961 dump_dedup_ratio(const ddt_stat_t *dds) 1962 { 1963 double rL, rP, rD, D, dedup, compress, copies; 1964 1965 if (dds->dds_blocks == 0) 1966 return; 1967 1968 rL = (double)dds->dds_ref_lsize; 1969 rP = (double)dds->dds_ref_psize; 1970 rD = (double)dds->dds_ref_dsize; 1971 D = (double)dds->dds_dsize; 1972 1973 dedup = rD / D; 1974 compress = rL / rP; 1975 copies = rD / rP; 1976 1977 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " 1978 "dedup * compress / copies = %.2f\n\n", 1979 dedup, compress, copies, dedup * compress / copies); 1980 } 1981 1982 static void 1983 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class) 1984 { 1985 char name[DDT_NAMELEN]; 1986 ddt_entry_t dde; 1987 uint64_t walk = 0; 1988 dmu_object_info_t doi; 1989 uint64_t count, dspace, mspace; 1990 int error; 1991 1992 error = ddt_object_info(ddt, type, class, &doi); 1993 1994 if (error == ENOENT) 1995 return; 1996 ASSERT(error == 0); 1997 1998 error = ddt_object_count(ddt, type, class, &count); 1999 ASSERT(error == 0); 2000 if (count == 0) 2001 return; 2002 2003 dspace = doi.doi_physical_blocks_512 << 9; 2004 mspace = doi.doi_fill_count * doi.doi_data_block_size; 2005 2006 ddt_object_name(ddt, type, class, name); 2007 2008 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n", 2009 name, 2010 (u_longlong_t)count, 2011 (u_longlong_t)(dspace / count), 2012 (u_longlong_t)(mspace / count)); 2013 2014 if (dump_opt['D'] < 3) 2015 return; 2016 2017 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]); 2018 2019 if (dump_opt['D'] < 4) 2020 return; 2021 2022 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE) 2023 return; 2024 2025 (void) printf("%s contents:\n\n", name); 2026 2027 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0) 2028 dump_dde(ddt, &dde, walk); 2029 2030 ASSERT3U(error, ==, ENOENT); 2031 2032 (void) printf("\n"); 2033 } 2034 2035 static void 2036 dump_all_ddts(spa_t *spa) 2037 { 2038 ddt_histogram_t ddh_total = {{{0}}}; 2039 ddt_stat_t dds_total = {0}; 2040 2041 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { 2042 ddt_t *ddt = spa->spa_ddt[c]; 2043 for (enum ddt_type type = 0; type < DDT_TYPES; type++) { 2044 for (enum ddt_class class = 0; class < DDT_CLASSES; 2045 class++) { 2046 dump_ddt(ddt, type, class); 2047 } 2048 } 2049 } 2050 2051 ddt_get_dedup_stats(spa, &dds_total); 2052 2053 if (dds_total.dds_blocks == 0) { 2054 (void) printf("All DDTs are empty\n"); 2055 return; 2056 } 2057 2058 (void) printf("\n"); 2059 2060 if (dump_opt['D'] > 1) { 2061 (void) printf("DDT histogram (aggregated over all DDTs):\n"); 2062 ddt_get_dedup_histogram(spa, &ddh_total); 2063 zpool_dump_ddt(&dds_total, &ddh_total); 2064 } 2065 2066 dump_dedup_ratio(&dds_total); 2067 } 2068 2069 static void 2070 dump_dtl_seg(void *arg, uint64_t start, uint64_t size) 2071 { 2072 char *prefix = arg; 2073 2074 (void) printf("%s [%llu,%llu) length %llu\n", 2075 prefix, 2076 (u_longlong_t)start, 2077 (u_longlong_t)(start + size), 2078 (u_longlong_t)(size)); 2079 } 2080 2081 static void 2082 dump_dtl(vdev_t *vd, int indent) 2083 { 2084 spa_t *spa = vd->vdev_spa; 2085 boolean_t required; 2086 const char *name[DTL_TYPES] = { "missing", "partial", "scrub", 2087 "outage" }; 2088 char prefix[256]; 2089 2090 spa_vdev_state_enter(spa, SCL_NONE); 2091 required = vdev_dtl_required(vd); 2092 (void) spa_vdev_state_exit(spa, NULL, 0); 2093 2094 if (indent == 0) 2095 (void) printf("\nDirty time logs:\n\n"); 2096 2097 (void) printf("\t%*s%s [%s]\n", indent, "", 2098 vd->vdev_path ? vd->vdev_path : 2099 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 2100 required ? "DTL-required" : "DTL-expendable"); 2101 2102 for (int t = 0; t < DTL_TYPES; t++) { 2103 range_tree_t *rt = vd->vdev_dtl[t]; 2104 if (range_tree_space(rt) == 0) 2105 continue; 2106 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 2107 indent + 2, "", name[t]); 2108 range_tree_walk(rt, dump_dtl_seg, prefix); 2109 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 2110 dump_spacemap(spa->spa_meta_objset, 2111 vd->vdev_dtl_sm); 2112 } 2113 2114 for (unsigned c = 0; c < vd->vdev_children; c++) 2115 dump_dtl(vd->vdev_child[c], indent + 4); 2116 } 2117 2118 static void 2119 dump_history(spa_t *spa) 2120 { 2121 nvlist_t **events = NULL; 2122 char *buf; 2123 uint64_t resid, len, off = 0; 2124 uint_t num = 0; 2125 int error; 2126 char tbuf[30]; 2127 2128 if ((buf = malloc(SPA_OLD_MAXBLOCKSIZE)) == NULL) { 2129 (void) fprintf(stderr, "%s: unable to allocate I/O buffer\n", 2130 __func__); 2131 return; 2132 } 2133 2134 do { 2135 len = SPA_OLD_MAXBLOCKSIZE; 2136 2137 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 2138 (void) fprintf(stderr, "Unable to read history: " 2139 "error %d\n", error); 2140 free(buf); 2141 return; 2142 } 2143 2144 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 2145 break; 2146 2147 off -= resid; 2148 } while (len != 0); 2149 2150 (void) printf("\nHistory:\n"); 2151 for (unsigned i = 0; i < num; i++) { 2152 boolean_t printed = B_FALSE; 2153 2154 if (nvlist_exists(events[i], ZPOOL_HIST_TIME)) { 2155 time_t tsec; 2156 struct tm t; 2157 2158 tsec = fnvlist_lookup_uint64(events[i], 2159 ZPOOL_HIST_TIME); 2160 (void) localtime_r(&tsec, &t); 2161 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 2162 } else { 2163 tbuf[0] = '\0'; 2164 } 2165 2166 if (nvlist_exists(events[i], ZPOOL_HIST_CMD)) { 2167 (void) printf("%s %s\n", tbuf, 2168 fnvlist_lookup_string(events[i], ZPOOL_HIST_CMD)); 2169 } else if (nvlist_exists(events[i], ZPOOL_HIST_INT_EVENT)) { 2170 uint64_t ievent; 2171 2172 ievent = fnvlist_lookup_uint64(events[i], 2173 ZPOOL_HIST_INT_EVENT); 2174 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 2175 goto next; 2176 2177 (void) printf(" %s [internal %s txg:%ju] %s\n", 2178 tbuf, 2179 zfs_history_event_names[ievent], 2180 fnvlist_lookup_uint64(events[i], 2181 ZPOOL_HIST_TXG), 2182 fnvlist_lookup_string(events[i], 2183 ZPOOL_HIST_INT_STR)); 2184 } else if (nvlist_exists(events[i], ZPOOL_HIST_INT_NAME)) { 2185 (void) printf("%s [txg:%ju] %s", tbuf, 2186 fnvlist_lookup_uint64(events[i], 2187 ZPOOL_HIST_TXG), 2188 fnvlist_lookup_string(events[i], 2189 ZPOOL_HIST_INT_NAME)); 2190 2191 if (nvlist_exists(events[i], ZPOOL_HIST_DSNAME)) { 2192 (void) printf(" %s (%llu)", 2193 fnvlist_lookup_string(events[i], 2194 ZPOOL_HIST_DSNAME), 2195 (u_longlong_t)fnvlist_lookup_uint64( 2196 events[i], 2197 ZPOOL_HIST_DSID)); 2198 } 2199 2200 (void) printf(" %s\n", fnvlist_lookup_string(events[i], 2201 ZPOOL_HIST_INT_STR)); 2202 } else if (nvlist_exists(events[i], ZPOOL_HIST_IOCTL)) { 2203 (void) printf("%s ioctl %s\n", tbuf, 2204 fnvlist_lookup_string(events[i], 2205 ZPOOL_HIST_IOCTL)); 2206 2207 if (nvlist_exists(events[i], ZPOOL_HIST_INPUT_NVL)) { 2208 (void) printf(" input:\n"); 2209 dump_nvlist(fnvlist_lookup_nvlist(events[i], 2210 ZPOOL_HIST_INPUT_NVL), 8); 2211 } 2212 if (nvlist_exists(events[i], ZPOOL_HIST_OUTPUT_NVL)) { 2213 (void) printf(" output:\n"); 2214 dump_nvlist(fnvlist_lookup_nvlist(events[i], 2215 ZPOOL_HIST_OUTPUT_NVL), 8); 2216 } 2217 if (nvlist_exists(events[i], ZPOOL_HIST_ERRNO)) { 2218 (void) printf(" errno: %lld\n", 2219 (longlong_t)fnvlist_lookup_int64(events[i], 2220 ZPOOL_HIST_ERRNO)); 2221 } 2222 } else { 2223 goto next; 2224 } 2225 2226 printed = B_TRUE; 2227 next: 2228 if (dump_opt['h'] > 1) { 2229 if (!printed) 2230 (void) printf("unrecognized record:\n"); 2231 dump_nvlist(events[i], 2); 2232 } 2233 } 2234 free(buf); 2235 } 2236 2237 static void 2238 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 2239 { 2240 (void) os, (void) object, (void) data, (void) size; 2241 } 2242 2243 static uint64_t 2244 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, 2245 const zbookmark_phys_t *zb) 2246 { 2247 if (dnp == NULL) { 2248 ASSERT(zb->zb_level < 0); 2249 if (zb->zb_object == 0) 2250 return (zb->zb_blkid); 2251 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 2252 } 2253 2254 ASSERT(zb->zb_level >= 0); 2255 2256 return ((zb->zb_blkid << 2257 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 2258 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 2259 } 2260 2261 static void 2262 snprintf_zstd_header(spa_t *spa, char *blkbuf, size_t buflen, 2263 const blkptr_t *bp) 2264 { 2265 abd_t *pabd; 2266 void *buf; 2267 zio_t *zio; 2268 zfs_zstdhdr_t zstd_hdr; 2269 int error; 2270 2271 if (BP_GET_COMPRESS(bp) != ZIO_COMPRESS_ZSTD) 2272 return; 2273 2274 if (BP_IS_HOLE(bp)) 2275 return; 2276 2277 if (BP_IS_EMBEDDED(bp)) { 2278 buf = malloc(SPA_MAXBLOCKSIZE); 2279 if (buf == NULL) { 2280 (void) fprintf(stderr, "out of memory\n"); 2281 exit(1); 2282 } 2283 decode_embedded_bp_compressed(bp, buf); 2284 memcpy(&zstd_hdr, buf, sizeof (zstd_hdr)); 2285 free(buf); 2286 zstd_hdr.c_len = BE_32(zstd_hdr.c_len); 2287 zstd_hdr.raw_version_level = BE_32(zstd_hdr.raw_version_level); 2288 (void) snprintf(blkbuf + strlen(blkbuf), 2289 buflen - strlen(blkbuf), 2290 " ZSTD:size=%u:version=%u:level=%u:EMBEDDED", 2291 zstd_hdr.c_len, zfs_get_hdrversion(&zstd_hdr), 2292 zfs_get_hdrlevel(&zstd_hdr)); 2293 return; 2294 } 2295 2296 pabd = abd_alloc_for_io(SPA_MAXBLOCKSIZE, B_FALSE); 2297 zio = zio_root(spa, NULL, NULL, 0); 2298 2299 /* Decrypt but don't decompress so we can read the compression header */ 2300 zio_nowait(zio_read(zio, spa, bp, pabd, BP_GET_PSIZE(bp), NULL, NULL, 2301 ZIO_PRIORITY_SYNC_READ, ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW_COMPRESS, 2302 NULL)); 2303 error = zio_wait(zio); 2304 if (error) { 2305 (void) fprintf(stderr, "read failed: %d\n", error); 2306 return; 2307 } 2308 buf = abd_borrow_buf_copy(pabd, BP_GET_LSIZE(bp)); 2309 memcpy(&zstd_hdr, buf, sizeof (zstd_hdr)); 2310 zstd_hdr.c_len = BE_32(zstd_hdr.c_len); 2311 zstd_hdr.raw_version_level = BE_32(zstd_hdr.raw_version_level); 2312 2313 (void) snprintf(blkbuf + strlen(blkbuf), 2314 buflen - strlen(blkbuf), 2315 " ZSTD:size=%u:version=%u:level=%u:NORMAL", 2316 zstd_hdr.c_len, zfs_get_hdrversion(&zstd_hdr), 2317 zfs_get_hdrlevel(&zstd_hdr)); 2318 2319 abd_return_buf_copy(pabd, buf, BP_GET_LSIZE(bp)); 2320 } 2321 2322 static void 2323 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp, 2324 boolean_t bp_freed) 2325 { 2326 const dva_t *dva = bp->blk_dva; 2327 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 2328 int i; 2329 2330 if (dump_opt['b'] >= 6) { 2331 snprintf_blkptr(blkbuf, buflen, bp); 2332 if (bp_freed) { 2333 (void) snprintf(blkbuf + strlen(blkbuf), 2334 buflen - strlen(blkbuf), " %s", "FREE"); 2335 } 2336 return; 2337 } 2338 2339 if (BP_IS_EMBEDDED(bp)) { 2340 (void) sprintf(blkbuf, 2341 "EMBEDDED et=%u %llxL/%llxP B=%llu", 2342 (int)BPE_GET_ETYPE(bp), 2343 (u_longlong_t)BPE_GET_LSIZE(bp), 2344 (u_longlong_t)BPE_GET_PSIZE(bp), 2345 (u_longlong_t)bp->blk_birth); 2346 return; 2347 } 2348 2349 blkbuf[0] = '\0'; 2350 2351 for (i = 0; i < ndvas; i++) 2352 (void) snprintf(blkbuf + strlen(blkbuf), 2353 buflen - strlen(blkbuf), "%llu:%llx:%llx ", 2354 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 2355 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 2356 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 2357 2358 if (BP_IS_HOLE(bp)) { 2359 (void) snprintf(blkbuf + strlen(blkbuf), 2360 buflen - strlen(blkbuf), 2361 "%llxL B=%llu", 2362 (u_longlong_t)BP_GET_LSIZE(bp), 2363 (u_longlong_t)bp->blk_birth); 2364 } else { 2365 (void) snprintf(blkbuf + strlen(blkbuf), 2366 buflen - strlen(blkbuf), 2367 "%llxL/%llxP F=%llu B=%llu/%llu", 2368 (u_longlong_t)BP_GET_LSIZE(bp), 2369 (u_longlong_t)BP_GET_PSIZE(bp), 2370 (u_longlong_t)BP_GET_FILL(bp), 2371 (u_longlong_t)bp->blk_birth, 2372 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 2373 if (bp_freed) 2374 (void) snprintf(blkbuf + strlen(blkbuf), 2375 buflen - strlen(blkbuf), " %s", "FREE"); 2376 (void) snprintf(blkbuf + strlen(blkbuf), 2377 buflen - strlen(blkbuf), " cksum=%llx:%llx:%llx:%llx", 2378 (u_longlong_t)bp->blk_cksum.zc_word[0], 2379 (u_longlong_t)bp->blk_cksum.zc_word[1], 2380 (u_longlong_t)bp->blk_cksum.zc_word[2], 2381 (u_longlong_t)bp->blk_cksum.zc_word[3]); 2382 } 2383 } 2384 2385 static void 2386 print_indirect(spa_t *spa, blkptr_t *bp, const zbookmark_phys_t *zb, 2387 const dnode_phys_t *dnp) 2388 { 2389 char blkbuf[BP_SPRINTF_LEN]; 2390 int l; 2391 2392 if (!BP_IS_EMBEDDED(bp)) { 2393 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 2394 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 2395 } 2396 2397 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 2398 2399 ASSERT(zb->zb_level >= 0); 2400 2401 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 2402 if (l == zb->zb_level) { 2403 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 2404 } else { 2405 (void) printf(" "); 2406 } 2407 } 2408 2409 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp, B_FALSE); 2410 if (dump_opt['Z'] && BP_GET_COMPRESS(bp) == ZIO_COMPRESS_ZSTD) 2411 snprintf_zstd_header(spa, blkbuf, sizeof (blkbuf), bp); 2412 (void) printf("%s\n", blkbuf); 2413 } 2414 2415 static int 2416 visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 2417 blkptr_t *bp, const zbookmark_phys_t *zb) 2418 { 2419 int err = 0; 2420 2421 if (bp->blk_birth == 0) 2422 return (0); 2423 2424 print_indirect(spa, bp, zb, dnp); 2425 2426 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) { 2427 arc_flags_t flags = ARC_FLAG_WAIT; 2428 int i; 2429 blkptr_t *cbp; 2430 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 2431 arc_buf_t *buf; 2432 uint64_t fill = 0; 2433 ASSERT(!BP_IS_REDACTED(bp)); 2434 2435 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 2436 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 2437 if (err) 2438 return (err); 2439 ASSERT(buf->b_data); 2440 2441 /* recursively visit blocks below this */ 2442 cbp = buf->b_data; 2443 for (i = 0; i < epb; i++, cbp++) { 2444 zbookmark_phys_t czb; 2445 2446 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 2447 zb->zb_level - 1, 2448 zb->zb_blkid * epb + i); 2449 err = visit_indirect(spa, dnp, cbp, &czb); 2450 if (err) 2451 break; 2452 fill += BP_GET_FILL(cbp); 2453 } 2454 if (!err) 2455 ASSERT3U(fill, ==, BP_GET_FILL(bp)); 2456 arc_buf_destroy(buf, &buf); 2457 } 2458 2459 return (err); 2460 } 2461 2462 static void 2463 dump_indirect(dnode_t *dn) 2464 { 2465 dnode_phys_t *dnp = dn->dn_phys; 2466 zbookmark_phys_t czb; 2467 2468 (void) printf("Indirect blocks:\n"); 2469 2470 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 2471 dn->dn_object, dnp->dn_nlevels - 1, 0); 2472 for (int j = 0; j < dnp->dn_nblkptr; j++) { 2473 czb.zb_blkid = j; 2474 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 2475 &dnp->dn_blkptr[j], &czb); 2476 } 2477 2478 (void) printf("\n"); 2479 } 2480 2481 static void 2482 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 2483 { 2484 (void) os, (void) object; 2485 dsl_dir_phys_t *dd = data; 2486 time_t crtime; 2487 char nice[32]; 2488 2489 /* make sure nicenum has enough space */ 2490 _Static_assert(sizeof (nice) >= NN_NUMBUF_SZ, "nice truncated"); 2491 2492 if (dd == NULL) 2493 return; 2494 2495 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 2496 2497 crtime = dd->dd_creation_time; 2498 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 2499 (void) printf("\t\thead_dataset_obj = %llu\n", 2500 (u_longlong_t)dd->dd_head_dataset_obj); 2501 (void) printf("\t\tparent_dir_obj = %llu\n", 2502 (u_longlong_t)dd->dd_parent_obj); 2503 (void) printf("\t\torigin_obj = %llu\n", 2504 (u_longlong_t)dd->dd_origin_obj); 2505 (void) printf("\t\tchild_dir_zapobj = %llu\n", 2506 (u_longlong_t)dd->dd_child_dir_zapobj); 2507 zdb_nicenum(dd->dd_used_bytes, nice, sizeof (nice)); 2508 (void) printf("\t\tused_bytes = %s\n", nice); 2509 zdb_nicenum(dd->dd_compressed_bytes, nice, sizeof (nice)); 2510 (void) printf("\t\tcompressed_bytes = %s\n", nice); 2511 zdb_nicenum(dd->dd_uncompressed_bytes, nice, sizeof (nice)); 2512 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 2513 zdb_nicenum(dd->dd_quota, nice, sizeof (nice)); 2514 (void) printf("\t\tquota = %s\n", nice); 2515 zdb_nicenum(dd->dd_reserved, nice, sizeof (nice)); 2516 (void) printf("\t\treserved = %s\n", nice); 2517 (void) printf("\t\tprops_zapobj = %llu\n", 2518 (u_longlong_t)dd->dd_props_zapobj); 2519 (void) printf("\t\tdeleg_zapobj = %llu\n", 2520 (u_longlong_t)dd->dd_deleg_zapobj); 2521 (void) printf("\t\tflags = %llx\n", 2522 (u_longlong_t)dd->dd_flags); 2523 2524 #define DO(which) \ 2525 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice, \ 2526 sizeof (nice)); \ 2527 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 2528 DO(HEAD); 2529 DO(SNAP); 2530 DO(CHILD); 2531 DO(CHILD_RSRV); 2532 DO(REFRSRV); 2533 #undef DO 2534 (void) printf("\t\tclones = %llu\n", 2535 (u_longlong_t)dd->dd_clones); 2536 } 2537 2538 static void 2539 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 2540 { 2541 (void) os, (void) object; 2542 dsl_dataset_phys_t *ds = data; 2543 time_t crtime; 2544 char used[32], compressed[32], uncompressed[32], unique[32]; 2545 char blkbuf[BP_SPRINTF_LEN]; 2546 2547 /* make sure nicenum has enough space */ 2548 _Static_assert(sizeof (used) >= NN_NUMBUF_SZ, "used truncated"); 2549 _Static_assert(sizeof (compressed) >= NN_NUMBUF_SZ, 2550 "compressed truncated"); 2551 _Static_assert(sizeof (uncompressed) >= NN_NUMBUF_SZ, 2552 "uncompressed truncated"); 2553 _Static_assert(sizeof (unique) >= NN_NUMBUF_SZ, "unique truncated"); 2554 2555 if (ds == NULL) 2556 return; 2557 2558 ASSERT(size == sizeof (*ds)); 2559 crtime = ds->ds_creation_time; 2560 zdb_nicenum(ds->ds_referenced_bytes, used, sizeof (used)); 2561 zdb_nicenum(ds->ds_compressed_bytes, compressed, sizeof (compressed)); 2562 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed, 2563 sizeof (uncompressed)); 2564 zdb_nicenum(ds->ds_unique_bytes, unique, sizeof (unique)); 2565 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp); 2566 2567 (void) printf("\t\tdir_obj = %llu\n", 2568 (u_longlong_t)ds->ds_dir_obj); 2569 (void) printf("\t\tprev_snap_obj = %llu\n", 2570 (u_longlong_t)ds->ds_prev_snap_obj); 2571 (void) printf("\t\tprev_snap_txg = %llu\n", 2572 (u_longlong_t)ds->ds_prev_snap_txg); 2573 (void) printf("\t\tnext_snap_obj = %llu\n", 2574 (u_longlong_t)ds->ds_next_snap_obj); 2575 (void) printf("\t\tsnapnames_zapobj = %llu\n", 2576 (u_longlong_t)ds->ds_snapnames_zapobj); 2577 (void) printf("\t\tnum_children = %llu\n", 2578 (u_longlong_t)ds->ds_num_children); 2579 (void) printf("\t\tuserrefs_obj = %llu\n", 2580 (u_longlong_t)ds->ds_userrefs_obj); 2581 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 2582 (void) printf("\t\tcreation_txg = %llu\n", 2583 (u_longlong_t)ds->ds_creation_txg); 2584 (void) printf("\t\tdeadlist_obj = %llu\n", 2585 (u_longlong_t)ds->ds_deadlist_obj); 2586 (void) printf("\t\tused_bytes = %s\n", used); 2587 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 2588 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 2589 (void) printf("\t\tunique = %s\n", unique); 2590 (void) printf("\t\tfsid_guid = %llu\n", 2591 (u_longlong_t)ds->ds_fsid_guid); 2592 (void) printf("\t\tguid = %llu\n", 2593 (u_longlong_t)ds->ds_guid); 2594 (void) printf("\t\tflags = %llx\n", 2595 (u_longlong_t)ds->ds_flags); 2596 (void) printf("\t\tnext_clones_obj = %llu\n", 2597 (u_longlong_t)ds->ds_next_clones_obj); 2598 (void) printf("\t\tprops_obj = %llu\n", 2599 (u_longlong_t)ds->ds_props_obj); 2600 (void) printf("\t\tbp = %s\n", blkbuf); 2601 } 2602 2603 static int 2604 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 2605 { 2606 (void) arg, (void) tx; 2607 char blkbuf[BP_SPRINTF_LEN]; 2608 2609 if (bp->blk_birth != 0) { 2610 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2611 (void) printf("\t%s\n", blkbuf); 2612 } 2613 return (0); 2614 } 2615 2616 static void 2617 dump_bptree(objset_t *os, uint64_t obj, const char *name) 2618 { 2619 char bytes[32]; 2620 bptree_phys_t *bt; 2621 dmu_buf_t *db; 2622 2623 /* make sure nicenum has enough space */ 2624 _Static_assert(sizeof (bytes) >= NN_NUMBUF_SZ, "bytes truncated"); 2625 2626 if (dump_opt['d'] < 3) 2627 return; 2628 2629 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 2630 bt = db->db_data; 2631 zdb_nicenum(bt->bt_bytes, bytes, sizeof (bytes)); 2632 (void) printf("\n %s: %llu datasets, %s\n", 2633 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 2634 dmu_buf_rele(db, FTAG); 2635 2636 if (dump_opt['d'] < 5) 2637 return; 2638 2639 (void) printf("\n"); 2640 2641 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 2642 } 2643 2644 static int 2645 dump_bpobj_cb(void *arg, const blkptr_t *bp, boolean_t bp_freed, dmu_tx_t *tx) 2646 { 2647 (void) arg, (void) tx; 2648 char blkbuf[BP_SPRINTF_LEN]; 2649 2650 ASSERT(bp->blk_birth != 0); 2651 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp, bp_freed); 2652 (void) printf("\t%s\n", blkbuf); 2653 return (0); 2654 } 2655 2656 static void 2657 dump_full_bpobj(bpobj_t *bpo, const char *name, int indent) 2658 { 2659 char bytes[32]; 2660 char comp[32]; 2661 char uncomp[32]; 2662 uint64_t i; 2663 2664 /* make sure nicenum has enough space */ 2665 _Static_assert(sizeof (bytes) >= NN_NUMBUF_SZ, "bytes truncated"); 2666 _Static_assert(sizeof (comp) >= NN_NUMBUF_SZ, "comp truncated"); 2667 _Static_assert(sizeof (uncomp) >= NN_NUMBUF_SZ, "uncomp truncated"); 2668 2669 if (dump_opt['d'] < 3) 2670 return; 2671 2672 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes, sizeof (bytes)); 2673 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 2674 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp, sizeof (comp)); 2675 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp, sizeof (uncomp)); 2676 if (bpo->bpo_havefreed) { 2677 (void) printf(" %*s: object %llu, %llu local " 2678 "blkptrs, %llu freed, %llu subobjs in object %llu, " 2679 "%s (%s/%s comp)\n", 2680 indent * 8, name, 2681 (u_longlong_t)bpo->bpo_object, 2682 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 2683 (u_longlong_t)bpo->bpo_phys->bpo_num_freed, 2684 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 2685 (u_longlong_t)bpo->bpo_phys->bpo_subobjs, 2686 bytes, comp, uncomp); 2687 } else { 2688 (void) printf(" %*s: object %llu, %llu local " 2689 "blkptrs, %llu subobjs in object %llu, " 2690 "%s (%s/%s comp)\n", 2691 indent * 8, name, 2692 (u_longlong_t)bpo->bpo_object, 2693 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 2694 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 2695 (u_longlong_t)bpo->bpo_phys->bpo_subobjs, 2696 bytes, comp, uncomp); 2697 } 2698 2699 for (i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 2700 uint64_t subobj; 2701 bpobj_t subbpo; 2702 int error; 2703 VERIFY0(dmu_read(bpo->bpo_os, 2704 bpo->bpo_phys->bpo_subobjs, 2705 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 2706 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 2707 if (error != 0) { 2708 (void) printf("ERROR %u while trying to open " 2709 "subobj id %llu\n", 2710 error, (u_longlong_t)subobj); 2711 continue; 2712 } 2713 dump_full_bpobj(&subbpo, "subobj", indent + 1); 2714 bpobj_close(&subbpo); 2715 } 2716 } else { 2717 if (bpo->bpo_havefreed) { 2718 (void) printf(" %*s: object %llu, %llu blkptrs, " 2719 "%llu freed, %s\n", 2720 indent * 8, name, 2721 (u_longlong_t)bpo->bpo_object, 2722 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 2723 (u_longlong_t)bpo->bpo_phys->bpo_num_freed, 2724 bytes); 2725 } else { 2726 (void) printf(" %*s: object %llu, %llu blkptrs, " 2727 "%s\n", 2728 indent * 8, name, 2729 (u_longlong_t)bpo->bpo_object, 2730 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 2731 bytes); 2732 } 2733 } 2734 2735 if (dump_opt['d'] < 5) 2736 return; 2737 2738 2739 if (indent == 0) { 2740 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 2741 (void) printf("\n"); 2742 } 2743 } 2744 2745 static int 2746 dump_bookmark(dsl_pool_t *dp, char *name, boolean_t print_redact, 2747 boolean_t print_list) 2748 { 2749 int err = 0; 2750 zfs_bookmark_phys_t prop; 2751 objset_t *mos = dp->dp_spa->spa_meta_objset; 2752 err = dsl_bookmark_lookup(dp, name, NULL, &prop); 2753 2754 if (err != 0) { 2755 return (err); 2756 } 2757 2758 (void) printf("\t#%s: ", strchr(name, '#') + 1); 2759 (void) printf("{guid: %llx creation_txg: %llu creation_time: " 2760 "%llu redaction_obj: %llu}\n", (u_longlong_t)prop.zbm_guid, 2761 (u_longlong_t)prop.zbm_creation_txg, 2762 (u_longlong_t)prop.zbm_creation_time, 2763 (u_longlong_t)prop.zbm_redaction_obj); 2764 2765 IMPLY(print_list, print_redact); 2766 if (!print_redact || prop.zbm_redaction_obj == 0) 2767 return (0); 2768 2769 redaction_list_t *rl; 2770 VERIFY0(dsl_redaction_list_hold_obj(dp, 2771 prop.zbm_redaction_obj, FTAG, &rl)); 2772 2773 redaction_list_phys_t *rlp = rl->rl_phys; 2774 (void) printf("\tRedacted:\n\t\tProgress: "); 2775 if (rlp->rlp_last_object != UINT64_MAX || 2776 rlp->rlp_last_blkid != UINT64_MAX) { 2777 (void) printf("%llu %llu (incomplete)\n", 2778 (u_longlong_t)rlp->rlp_last_object, 2779 (u_longlong_t)rlp->rlp_last_blkid); 2780 } else { 2781 (void) printf("complete\n"); 2782 } 2783 (void) printf("\t\tSnapshots: ["); 2784 for (unsigned int i = 0; i < rlp->rlp_num_snaps; i++) { 2785 if (i > 0) 2786 (void) printf(", "); 2787 (void) printf("%0llu", 2788 (u_longlong_t)rlp->rlp_snaps[i]); 2789 } 2790 (void) printf("]\n\t\tLength: %llu\n", 2791 (u_longlong_t)rlp->rlp_num_entries); 2792 2793 if (!print_list) { 2794 dsl_redaction_list_rele(rl, FTAG); 2795 return (0); 2796 } 2797 2798 if (rlp->rlp_num_entries == 0) { 2799 dsl_redaction_list_rele(rl, FTAG); 2800 (void) printf("\t\tRedaction List: []\n\n"); 2801 return (0); 2802 } 2803 2804 redact_block_phys_t *rbp_buf; 2805 uint64_t size; 2806 dmu_object_info_t doi; 2807 2808 VERIFY0(dmu_object_info(mos, prop.zbm_redaction_obj, &doi)); 2809 size = doi.doi_max_offset; 2810 rbp_buf = kmem_alloc(size, KM_SLEEP); 2811 2812 err = dmu_read(mos, prop.zbm_redaction_obj, 0, size, 2813 rbp_buf, 0); 2814 if (err != 0) { 2815 dsl_redaction_list_rele(rl, FTAG); 2816 kmem_free(rbp_buf, size); 2817 return (err); 2818 } 2819 2820 (void) printf("\t\tRedaction List: [{object: %llx, offset: " 2821 "%llx, blksz: %x, count: %llx}", 2822 (u_longlong_t)rbp_buf[0].rbp_object, 2823 (u_longlong_t)rbp_buf[0].rbp_blkid, 2824 (uint_t)(redact_block_get_size(&rbp_buf[0])), 2825 (u_longlong_t)redact_block_get_count(&rbp_buf[0])); 2826 2827 for (size_t i = 1; i < rlp->rlp_num_entries; i++) { 2828 (void) printf(",\n\t\t{object: %llx, offset: %llx, " 2829 "blksz: %x, count: %llx}", 2830 (u_longlong_t)rbp_buf[i].rbp_object, 2831 (u_longlong_t)rbp_buf[i].rbp_blkid, 2832 (uint_t)(redact_block_get_size(&rbp_buf[i])), 2833 (u_longlong_t)redact_block_get_count(&rbp_buf[i])); 2834 } 2835 dsl_redaction_list_rele(rl, FTAG); 2836 kmem_free(rbp_buf, size); 2837 (void) printf("]\n\n"); 2838 return (0); 2839 } 2840 2841 static void 2842 dump_bookmarks(objset_t *os, int verbosity) 2843 { 2844 zap_cursor_t zc; 2845 zap_attribute_t attr; 2846 dsl_dataset_t *ds = dmu_objset_ds(os); 2847 dsl_pool_t *dp = spa_get_dsl(os->os_spa); 2848 objset_t *mos = os->os_spa->spa_meta_objset; 2849 if (verbosity < 4) 2850 return; 2851 dsl_pool_config_enter(dp, FTAG); 2852 2853 for (zap_cursor_init(&zc, mos, ds->ds_bookmarks_obj); 2854 zap_cursor_retrieve(&zc, &attr) == 0; 2855 zap_cursor_advance(&zc)) { 2856 char osname[ZFS_MAX_DATASET_NAME_LEN]; 2857 char buf[ZFS_MAX_DATASET_NAME_LEN]; 2858 dmu_objset_name(os, osname); 2859 VERIFY3S(0, <=, snprintf(buf, sizeof (buf), "%s#%s", osname, 2860 attr.za_name)); 2861 (void) dump_bookmark(dp, buf, verbosity >= 5, verbosity >= 6); 2862 } 2863 zap_cursor_fini(&zc); 2864 dsl_pool_config_exit(dp, FTAG); 2865 } 2866 2867 static void 2868 bpobj_count_refd(bpobj_t *bpo) 2869 { 2870 mos_obj_refd(bpo->bpo_object); 2871 2872 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 2873 mos_obj_refd(bpo->bpo_phys->bpo_subobjs); 2874 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 2875 uint64_t subobj; 2876 bpobj_t subbpo; 2877 int error; 2878 VERIFY0(dmu_read(bpo->bpo_os, 2879 bpo->bpo_phys->bpo_subobjs, 2880 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 2881 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 2882 if (error != 0) { 2883 (void) printf("ERROR %u while trying to open " 2884 "subobj id %llu\n", 2885 error, (u_longlong_t)subobj); 2886 continue; 2887 } 2888 bpobj_count_refd(&subbpo); 2889 bpobj_close(&subbpo); 2890 } 2891 } 2892 } 2893 2894 static int 2895 dsl_deadlist_entry_count_refd(void *arg, dsl_deadlist_entry_t *dle) 2896 { 2897 spa_t *spa = arg; 2898 uint64_t empty_bpobj = spa->spa_dsl_pool->dp_empty_bpobj; 2899 if (dle->dle_bpobj.bpo_object != empty_bpobj) 2900 bpobj_count_refd(&dle->dle_bpobj); 2901 return (0); 2902 } 2903 2904 static int 2905 dsl_deadlist_entry_dump(void *arg, dsl_deadlist_entry_t *dle) 2906 { 2907 ASSERT(arg == NULL); 2908 if (dump_opt['d'] >= 5) { 2909 char buf[128]; 2910 (void) snprintf(buf, sizeof (buf), 2911 "mintxg %llu -> obj %llu", 2912 (longlong_t)dle->dle_mintxg, 2913 (longlong_t)dle->dle_bpobj.bpo_object); 2914 2915 dump_full_bpobj(&dle->dle_bpobj, buf, 0); 2916 } else { 2917 (void) printf("mintxg %llu -> obj %llu\n", 2918 (longlong_t)dle->dle_mintxg, 2919 (longlong_t)dle->dle_bpobj.bpo_object); 2920 } 2921 return (0); 2922 } 2923 2924 static void 2925 dump_blkptr_list(dsl_deadlist_t *dl, char *name) 2926 { 2927 char bytes[32]; 2928 char comp[32]; 2929 char uncomp[32]; 2930 char entries[32]; 2931 spa_t *spa = dmu_objset_spa(dl->dl_os); 2932 uint64_t empty_bpobj = spa->spa_dsl_pool->dp_empty_bpobj; 2933 2934 if (dl->dl_oldfmt) { 2935 if (dl->dl_bpobj.bpo_object != empty_bpobj) 2936 bpobj_count_refd(&dl->dl_bpobj); 2937 } else { 2938 mos_obj_refd(dl->dl_object); 2939 dsl_deadlist_iterate(dl, dsl_deadlist_entry_count_refd, spa); 2940 } 2941 2942 /* make sure nicenum has enough space */ 2943 _Static_assert(sizeof (bytes) >= NN_NUMBUF_SZ, "bytes truncated"); 2944 _Static_assert(sizeof (comp) >= NN_NUMBUF_SZ, "comp truncated"); 2945 _Static_assert(sizeof (uncomp) >= NN_NUMBUF_SZ, "uncomp truncated"); 2946 _Static_assert(sizeof (entries) >= NN_NUMBUF_SZ, "entries truncated"); 2947 2948 if (dump_opt['d'] < 3) 2949 return; 2950 2951 if (dl->dl_oldfmt) { 2952 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0); 2953 return; 2954 } 2955 2956 zdb_nicenum(dl->dl_phys->dl_used, bytes, sizeof (bytes)); 2957 zdb_nicenum(dl->dl_phys->dl_comp, comp, sizeof (comp)); 2958 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp, sizeof (uncomp)); 2959 zdb_nicenum(avl_numnodes(&dl->dl_tree), entries, sizeof (entries)); 2960 (void) printf("\n %s: %s (%s/%s comp), %s entries\n", 2961 name, bytes, comp, uncomp, entries); 2962 2963 if (dump_opt['d'] < 4) 2964 return; 2965 2966 (void) printf("\n"); 2967 2968 dsl_deadlist_iterate(dl, dsl_deadlist_entry_dump, NULL); 2969 } 2970 2971 static int 2972 verify_dd_livelist(objset_t *os) 2973 { 2974 uint64_t ll_used, used, ll_comp, comp, ll_uncomp, uncomp; 2975 dsl_pool_t *dp = spa_get_dsl(os->os_spa); 2976 dsl_dir_t *dd = os->os_dsl_dataset->ds_dir; 2977 2978 ASSERT(!dmu_objset_is_snapshot(os)); 2979 if (!dsl_deadlist_is_open(&dd->dd_livelist)) 2980 return (0); 2981 2982 /* Iterate through the livelist to check for duplicates */ 2983 dsl_deadlist_iterate(&dd->dd_livelist, sublivelist_verify_lightweight, 2984 NULL); 2985 2986 dsl_pool_config_enter(dp, FTAG); 2987 dsl_deadlist_space(&dd->dd_livelist, &ll_used, 2988 &ll_comp, &ll_uncomp); 2989 2990 dsl_dataset_t *origin_ds; 2991 ASSERT(dsl_pool_config_held(dp)); 2992 VERIFY0(dsl_dataset_hold_obj(dp, 2993 dsl_dir_phys(dd)->dd_origin_obj, FTAG, &origin_ds)); 2994 VERIFY0(dsl_dataset_space_written(origin_ds, os->os_dsl_dataset, 2995 &used, &comp, &uncomp)); 2996 dsl_dataset_rele(origin_ds, FTAG); 2997 dsl_pool_config_exit(dp, FTAG); 2998 /* 2999 * It's possible that the dataset's uncomp space is larger than the 3000 * livelist's because livelists do not track embedded block pointers 3001 */ 3002 if (used != ll_used || comp != ll_comp || uncomp < ll_uncomp) { 3003 char nice_used[32], nice_comp[32], nice_uncomp[32]; 3004 (void) printf("Discrepancy in space accounting:\n"); 3005 zdb_nicenum(used, nice_used, sizeof (nice_used)); 3006 zdb_nicenum(comp, nice_comp, sizeof (nice_comp)); 3007 zdb_nicenum(uncomp, nice_uncomp, sizeof (nice_uncomp)); 3008 (void) printf("dir: used %s, comp %s, uncomp %s\n", 3009 nice_used, nice_comp, nice_uncomp); 3010 zdb_nicenum(ll_used, nice_used, sizeof (nice_used)); 3011 zdb_nicenum(ll_comp, nice_comp, sizeof (nice_comp)); 3012 zdb_nicenum(ll_uncomp, nice_uncomp, sizeof (nice_uncomp)); 3013 (void) printf("livelist: used %s, comp %s, uncomp %s\n", 3014 nice_used, nice_comp, nice_uncomp); 3015 return (1); 3016 } 3017 return (0); 3018 } 3019 3020 static avl_tree_t idx_tree; 3021 static avl_tree_t domain_tree; 3022 static boolean_t fuid_table_loaded; 3023 static objset_t *sa_os = NULL; 3024 static sa_attr_type_t *sa_attr_table = NULL; 3025 3026 static int 3027 open_objset(const char *path, void *tag, objset_t **osp) 3028 { 3029 int err; 3030 uint64_t sa_attrs = 0; 3031 uint64_t version = 0; 3032 3033 VERIFY3P(sa_os, ==, NULL); 3034 /* 3035 * We can't own an objset if it's redacted. Therefore, we do this 3036 * dance: hold the objset, then acquire a long hold on its dataset, then 3037 * release the pool (which is held as part of holding the objset). 3038 */ 3039 err = dmu_objset_hold(path, tag, osp); 3040 if (err != 0) { 3041 (void) fprintf(stderr, "failed to hold dataset '%s': %s\n", 3042 path, strerror(err)); 3043 return (err); 3044 } 3045 dsl_dataset_long_hold(dmu_objset_ds(*osp), tag); 3046 dsl_pool_rele(dmu_objset_pool(*osp), tag); 3047 3048 if (dmu_objset_type(*osp) == DMU_OST_ZFS && !(*osp)->os_encrypted) { 3049 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZPL_VERSION_STR, 3050 8, 1, &version); 3051 if (version >= ZPL_VERSION_SA) { 3052 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 3053 8, 1, &sa_attrs); 3054 } 3055 err = sa_setup(*osp, sa_attrs, zfs_attr_table, ZPL_END, 3056 &sa_attr_table); 3057 if (err != 0) { 3058 (void) fprintf(stderr, "sa_setup failed: %s\n", 3059 strerror(err)); 3060 dsl_dataset_long_rele(dmu_objset_ds(*osp), tag); 3061 dsl_dataset_rele(dmu_objset_ds(*osp), tag); 3062 *osp = NULL; 3063 } 3064 } 3065 sa_os = *osp; 3066 3067 return (0); 3068 } 3069 3070 static void 3071 close_objset(objset_t *os, void *tag) 3072 { 3073 VERIFY3P(os, ==, sa_os); 3074 if (os->os_sa != NULL) 3075 sa_tear_down(os); 3076 dsl_dataset_long_rele(dmu_objset_ds(os), tag); 3077 dsl_dataset_rele(dmu_objset_ds(os), tag); 3078 sa_attr_table = NULL; 3079 sa_os = NULL; 3080 } 3081 3082 static void 3083 fuid_table_destroy(void) 3084 { 3085 if (fuid_table_loaded) { 3086 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 3087 fuid_table_loaded = B_FALSE; 3088 } 3089 } 3090 3091 /* 3092 * print uid or gid information. 3093 * For normal POSIX id just the id is printed in decimal format. 3094 * For CIFS files with FUID the fuid is printed in hex followed by 3095 * the domain-rid string. 3096 */ 3097 static void 3098 print_idstr(uint64_t id, const char *id_type) 3099 { 3100 if (FUID_INDEX(id)) { 3101 char *domain; 3102 3103 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 3104 (void) printf("\t%s %llx [%s-%d]\n", id_type, 3105 (u_longlong_t)id, domain, (int)FUID_RID(id)); 3106 } else { 3107 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 3108 } 3109 3110 } 3111 3112 static void 3113 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 3114 { 3115 uint32_t uid_idx, gid_idx; 3116 3117 uid_idx = FUID_INDEX(uid); 3118 gid_idx = FUID_INDEX(gid); 3119 3120 /* Load domain table, if not already loaded */ 3121 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 3122 uint64_t fuid_obj; 3123 3124 /* first find the fuid object. It lives in the master node */ 3125 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 3126 8, 1, &fuid_obj) == 0); 3127 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 3128 (void) zfs_fuid_table_load(os, fuid_obj, 3129 &idx_tree, &domain_tree); 3130 fuid_table_loaded = B_TRUE; 3131 } 3132 3133 print_idstr(uid, "uid"); 3134 print_idstr(gid, "gid"); 3135 } 3136 3137 static void 3138 dump_znode_sa_xattr(sa_handle_t *hdl) 3139 { 3140 nvlist_t *sa_xattr; 3141 nvpair_t *elem = NULL; 3142 int sa_xattr_size = 0; 3143 int sa_xattr_entries = 0; 3144 int error; 3145 char *sa_xattr_packed; 3146 3147 error = sa_size(hdl, sa_attr_table[ZPL_DXATTR], &sa_xattr_size); 3148 if (error || sa_xattr_size == 0) 3149 return; 3150 3151 sa_xattr_packed = malloc(sa_xattr_size); 3152 if (sa_xattr_packed == NULL) 3153 return; 3154 3155 error = sa_lookup(hdl, sa_attr_table[ZPL_DXATTR], 3156 sa_xattr_packed, sa_xattr_size); 3157 if (error) { 3158 free(sa_xattr_packed); 3159 return; 3160 } 3161 3162 error = nvlist_unpack(sa_xattr_packed, sa_xattr_size, &sa_xattr, 0); 3163 if (error) { 3164 free(sa_xattr_packed); 3165 return; 3166 } 3167 3168 while ((elem = nvlist_next_nvpair(sa_xattr, elem)) != NULL) 3169 sa_xattr_entries++; 3170 3171 (void) printf("\tSA xattrs: %d bytes, %d entries\n\n", 3172 sa_xattr_size, sa_xattr_entries); 3173 while ((elem = nvlist_next_nvpair(sa_xattr, elem)) != NULL) { 3174 uchar_t *value; 3175 uint_t cnt, idx; 3176 3177 (void) printf("\t\t%s = ", nvpair_name(elem)); 3178 nvpair_value_byte_array(elem, &value, &cnt); 3179 for (idx = 0; idx < cnt; ++idx) { 3180 if (isprint(value[idx])) 3181 (void) putchar(value[idx]); 3182 else 3183 (void) printf("\\%3.3o", value[idx]); 3184 } 3185 (void) putchar('\n'); 3186 } 3187 3188 nvlist_free(sa_xattr); 3189 free(sa_xattr_packed); 3190 } 3191 3192 static void 3193 dump_znode_symlink(sa_handle_t *hdl) 3194 { 3195 int sa_symlink_size = 0; 3196 char linktarget[MAXPATHLEN]; 3197 linktarget[0] = '\0'; 3198 int error; 3199 3200 error = sa_size(hdl, sa_attr_table[ZPL_SYMLINK], &sa_symlink_size); 3201 if (error || sa_symlink_size == 0) { 3202 return; 3203 } 3204 if (sa_lookup(hdl, sa_attr_table[ZPL_SYMLINK], 3205 &linktarget, sa_symlink_size) == 0) 3206 (void) printf("\ttarget %s\n", linktarget); 3207 } 3208 3209 static void 3210 dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 3211 { 3212 (void) data, (void) size; 3213 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 3214 sa_handle_t *hdl; 3215 uint64_t xattr, rdev, gen; 3216 uint64_t uid, gid, mode, fsize, parent, links; 3217 uint64_t pflags; 3218 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 3219 time_t z_crtime, z_atime, z_mtime, z_ctime; 3220 sa_bulk_attr_t bulk[12]; 3221 int idx = 0; 3222 int error; 3223 3224 VERIFY3P(os, ==, sa_os); 3225 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 3226 (void) printf("Failed to get handle for SA znode\n"); 3227 return; 3228 } 3229 3230 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 3231 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 3232 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 3233 &links, 8); 3234 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 3235 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 3236 &mode, 8); 3237 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 3238 NULL, &parent, 8); 3239 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 3240 &fsize, 8); 3241 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 3242 acctm, 16); 3243 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 3244 modtm, 16); 3245 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 3246 crtm, 16); 3247 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 3248 chgtm, 16); 3249 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 3250 &pflags, 8); 3251 3252 if (sa_bulk_lookup(hdl, bulk, idx)) { 3253 (void) sa_handle_destroy(hdl); 3254 return; 3255 } 3256 3257 z_crtime = (time_t)crtm[0]; 3258 z_atime = (time_t)acctm[0]; 3259 z_mtime = (time_t)modtm[0]; 3260 z_ctime = (time_t)chgtm[0]; 3261 3262 if (dump_opt['d'] > 4) { 3263 error = zfs_obj_to_path(os, object, path, sizeof (path)); 3264 if (error == ESTALE) { 3265 (void) snprintf(path, sizeof (path), "on delete queue"); 3266 } else if (error != 0) { 3267 leaked_objects++; 3268 (void) snprintf(path, sizeof (path), 3269 "path not found, possibly leaked"); 3270 } 3271 (void) printf("\tpath %s\n", path); 3272 } 3273 3274 if (S_ISLNK(mode)) 3275 dump_znode_symlink(hdl); 3276 dump_uidgid(os, uid, gid); 3277 (void) printf("\tatime %s", ctime(&z_atime)); 3278 (void) printf("\tmtime %s", ctime(&z_mtime)); 3279 (void) printf("\tctime %s", ctime(&z_ctime)); 3280 (void) printf("\tcrtime %s", ctime(&z_crtime)); 3281 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 3282 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 3283 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 3284 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 3285 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 3286 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 3287 if (dmu_objset_projectquota_enabled(os) && (pflags & ZFS_PROJID)) { 3288 uint64_t projid; 3289 3290 if (sa_lookup(hdl, sa_attr_table[ZPL_PROJID], &projid, 3291 sizeof (uint64_t)) == 0) 3292 (void) printf("\tprojid %llu\n", (u_longlong_t)projid); 3293 } 3294 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 3295 sizeof (uint64_t)) == 0) 3296 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 3297 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 3298 sizeof (uint64_t)) == 0) 3299 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 3300 dump_znode_sa_xattr(hdl); 3301 sa_handle_destroy(hdl); 3302 } 3303 3304 static void 3305 dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 3306 { 3307 (void) os, (void) object, (void) data, (void) size; 3308 } 3309 3310 static void 3311 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 3312 { 3313 (void) os, (void) object, (void) data, (void) size; 3314 } 3315 3316 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 3317 dump_none, /* unallocated */ 3318 dump_zap, /* object directory */ 3319 dump_uint64, /* object array */ 3320 dump_none, /* packed nvlist */ 3321 dump_packed_nvlist, /* packed nvlist size */ 3322 dump_none, /* bpobj */ 3323 dump_bpobj, /* bpobj header */ 3324 dump_none, /* SPA space map header */ 3325 dump_none, /* SPA space map */ 3326 dump_none, /* ZIL intent log */ 3327 dump_dnode, /* DMU dnode */ 3328 dump_dmu_objset, /* DMU objset */ 3329 dump_dsl_dir, /* DSL directory */ 3330 dump_zap, /* DSL directory child map */ 3331 dump_zap, /* DSL dataset snap map */ 3332 dump_zap, /* DSL props */ 3333 dump_dsl_dataset, /* DSL dataset */ 3334 dump_znode, /* ZFS znode */ 3335 dump_acl, /* ZFS V0 ACL */ 3336 dump_uint8, /* ZFS plain file */ 3337 dump_zpldir, /* ZFS directory */ 3338 dump_zap, /* ZFS master node */ 3339 dump_zap, /* ZFS delete queue */ 3340 dump_uint8, /* zvol object */ 3341 dump_zap, /* zvol prop */ 3342 dump_uint8, /* other uint8[] */ 3343 dump_uint64, /* other uint64[] */ 3344 dump_zap, /* other ZAP */ 3345 dump_zap, /* persistent error log */ 3346 dump_uint8, /* SPA history */ 3347 dump_history_offsets, /* SPA history offsets */ 3348 dump_zap, /* Pool properties */ 3349 dump_zap, /* DSL permissions */ 3350 dump_acl, /* ZFS ACL */ 3351 dump_uint8, /* ZFS SYSACL */ 3352 dump_none, /* FUID nvlist */ 3353 dump_packed_nvlist, /* FUID nvlist size */ 3354 dump_zap, /* DSL dataset next clones */ 3355 dump_zap, /* DSL scrub queue */ 3356 dump_zap, /* ZFS user/group/project used */ 3357 dump_zap, /* ZFS user/group/project quota */ 3358 dump_zap, /* snapshot refcount tags */ 3359 dump_ddt_zap, /* DDT ZAP object */ 3360 dump_zap, /* DDT statistics */ 3361 dump_znode, /* SA object */ 3362 dump_zap, /* SA Master Node */ 3363 dump_sa_attrs, /* SA attribute registration */ 3364 dump_sa_layouts, /* SA attribute layouts */ 3365 dump_zap, /* DSL scrub translations */ 3366 dump_none, /* fake dedup BP */ 3367 dump_zap, /* deadlist */ 3368 dump_none, /* deadlist hdr */ 3369 dump_zap, /* dsl clones */ 3370 dump_bpobj_subobjs, /* bpobj subobjs */ 3371 dump_unknown, /* Unknown type, must be last */ 3372 }; 3373 3374 static boolean_t 3375 match_object_type(dmu_object_type_t obj_type, uint64_t flags) 3376 { 3377 boolean_t match = B_TRUE; 3378 3379 switch (obj_type) { 3380 case DMU_OT_DIRECTORY_CONTENTS: 3381 if (!(flags & ZOR_FLAG_DIRECTORY)) 3382 match = B_FALSE; 3383 break; 3384 case DMU_OT_PLAIN_FILE_CONTENTS: 3385 if (!(flags & ZOR_FLAG_PLAIN_FILE)) 3386 match = B_FALSE; 3387 break; 3388 case DMU_OT_SPACE_MAP: 3389 if (!(flags & ZOR_FLAG_SPACE_MAP)) 3390 match = B_FALSE; 3391 break; 3392 default: 3393 if (strcmp(zdb_ot_name(obj_type), "zap") == 0) { 3394 if (!(flags & ZOR_FLAG_ZAP)) 3395 match = B_FALSE; 3396 break; 3397 } 3398 3399 /* 3400 * If all bits except some of the supported flags are 3401 * set, the user combined the all-types flag (A) with 3402 * a negated flag to exclude some types (e.g. A-f to 3403 * show all object types except plain files). 3404 */ 3405 if ((flags | ZOR_SUPPORTED_FLAGS) != ZOR_FLAG_ALL_TYPES) 3406 match = B_FALSE; 3407 3408 break; 3409 } 3410 3411 return (match); 3412 } 3413 3414 static void 3415 dump_object(objset_t *os, uint64_t object, int verbosity, 3416 boolean_t *print_header, uint64_t *dnode_slots_used, uint64_t flags) 3417 { 3418 dmu_buf_t *db = NULL; 3419 dmu_object_info_t doi; 3420 dnode_t *dn; 3421 boolean_t dnode_held = B_FALSE; 3422 void *bonus = NULL; 3423 size_t bsize = 0; 3424 char iblk[32], dblk[32], lsize[32], asize[32], fill[32], dnsize[32]; 3425 char bonus_size[32]; 3426 char aux[50]; 3427 int error; 3428 3429 /* make sure nicenum has enough space */ 3430 _Static_assert(sizeof (iblk) >= NN_NUMBUF_SZ, "iblk truncated"); 3431 _Static_assert(sizeof (dblk) >= NN_NUMBUF_SZ, "dblk truncated"); 3432 _Static_assert(sizeof (lsize) >= NN_NUMBUF_SZ, "lsize truncated"); 3433 _Static_assert(sizeof (asize) >= NN_NUMBUF_SZ, "asize truncated"); 3434 _Static_assert(sizeof (bonus_size) >= NN_NUMBUF_SZ, 3435 "bonus_size truncated"); 3436 3437 if (*print_header) { 3438 (void) printf("\n%10s %3s %5s %5s %5s %6s %5s %6s %s\n", 3439 "Object", "lvl", "iblk", "dblk", "dsize", "dnsize", 3440 "lsize", "%full", "type"); 3441 *print_header = 0; 3442 } 3443 3444 if (object == 0) { 3445 dn = DMU_META_DNODE(os); 3446 dmu_object_info_from_dnode(dn, &doi); 3447 } else { 3448 /* 3449 * Encrypted datasets will have sensitive bonus buffers 3450 * encrypted. Therefore we cannot hold the bonus buffer and 3451 * must hold the dnode itself instead. 3452 */ 3453 error = dmu_object_info(os, object, &doi); 3454 if (error) 3455 fatal("dmu_object_info() failed, errno %u", error); 3456 3457 if (os->os_encrypted && 3458 DMU_OT_IS_ENCRYPTED(doi.doi_bonus_type)) { 3459 error = dnode_hold(os, object, FTAG, &dn); 3460 if (error) 3461 fatal("dnode_hold() failed, errno %u", error); 3462 dnode_held = B_TRUE; 3463 } else { 3464 error = dmu_bonus_hold(os, object, FTAG, &db); 3465 if (error) 3466 fatal("dmu_bonus_hold(%llu) failed, errno %u", 3467 object, error); 3468 bonus = db->db_data; 3469 bsize = db->db_size; 3470 dn = DB_DNODE((dmu_buf_impl_t *)db); 3471 } 3472 } 3473 3474 /* 3475 * Default to showing all object types if no flags were specified. 3476 */ 3477 if (flags != 0 && flags != ZOR_FLAG_ALL_TYPES && 3478 !match_object_type(doi.doi_type, flags)) 3479 goto out; 3480 3481 if (dnode_slots_used) 3482 *dnode_slots_used = doi.doi_dnodesize / DNODE_MIN_SIZE; 3483 3484 zdb_nicenum(doi.doi_metadata_block_size, iblk, sizeof (iblk)); 3485 zdb_nicenum(doi.doi_data_block_size, dblk, sizeof (dblk)); 3486 zdb_nicenum(doi.doi_max_offset, lsize, sizeof (lsize)); 3487 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize, sizeof (asize)); 3488 zdb_nicenum(doi.doi_bonus_size, bonus_size, sizeof (bonus_size)); 3489 zdb_nicenum(doi.doi_dnodesize, dnsize, sizeof (dnsize)); 3490 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 3491 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 3492 doi.doi_max_offset); 3493 3494 aux[0] = '\0'; 3495 3496 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 3497 (void) snprintf(aux + strlen(aux), sizeof (aux) - strlen(aux), 3498 " (K=%s)", ZDB_CHECKSUM_NAME(doi.doi_checksum)); 3499 } 3500 3501 if (doi.doi_compress == ZIO_COMPRESS_INHERIT && 3502 ZIO_COMPRESS_HASLEVEL(os->os_compress) && verbosity >= 6) { 3503 const char *compname = NULL; 3504 if (zfs_prop_index_to_string(ZFS_PROP_COMPRESSION, 3505 ZIO_COMPRESS_RAW(os->os_compress, os->os_complevel), 3506 &compname) == 0) { 3507 (void) snprintf(aux + strlen(aux), 3508 sizeof (aux) - strlen(aux), " (Z=inherit=%s)", 3509 compname); 3510 } else { 3511 (void) snprintf(aux + strlen(aux), 3512 sizeof (aux) - strlen(aux), 3513 " (Z=inherit=%s-unknown)", 3514 ZDB_COMPRESS_NAME(os->os_compress)); 3515 } 3516 } else if (doi.doi_compress == ZIO_COMPRESS_INHERIT && verbosity >= 6) { 3517 (void) snprintf(aux + strlen(aux), sizeof (aux) - strlen(aux), 3518 " (Z=inherit=%s)", ZDB_COMPRESS_NAME(os->os_compress)); 3519 } else if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 3520 (void) snprintf(aux + strlen(aux), sizeof (aux) - strlen(aux), 3521 " (Z=%s)", ZDB_COMPRESS_NAME(doi.doi_compress)); 3522 } 3523 3524 (void) printf("%10lld %3u %5s %5s %5s %6s %5s %6s %s%s\n", 3525 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 3526 asize, dnsize, lsize, fill, zdb_ot_name(doi.doi_type), aux); 3527 3528 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 3529 (void) printf("%10s %3s %5s %5s %5s %5s %5s %6s %s\n", 3530 "", "", "", "", "", "", bonus_size, "bonus", 3531 zdb_ot_name(doi.doi_bonus_type)); 3532 } 3533 3534 if (verbosity >= 4) { 3535 (void) printf("\tdnode flags: %s%s%s%s\n", 3536 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 3537 "USED_BYTES " : "", 3538 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 3539 "USERUSED_ACCOUNTED " : "", 3540 (dn->dn_phys->dn_flags & DNODE_FLAG_USEROBJUSED_ACCOUNTED) ? 3541 "USEROBJUSED_ACCOUNTED " : "", 3542 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 3543 "SPILL_BLKPTR" : ""); 3544 (void) printf("\tdnode maxblkid: %llu\n", 3545 (longlong_t)dn->dn_phys->dn_maxblkid); 3546 3547 if (!dnode_held) { 3548 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, 3549 object, bonus, bsize); 3550 } else { 3551 (void) printf("\t\t(bonus encrypted)\n"); 3552 } 3553 3554 if (!os->os_encrypted || !DMU_OT_IS_ENCRYPTED(doi.doi_type)) { 3555 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, 3556 NULL, 0); 3557 } else { 3558 (void) printf("\t\t(object encrypted)\n"); 3559 } 3560 3561 *print_header = B_TRUE; 3562 } 3563 3564 if (verbosity >= 5) 3565 dump_indirect(dn); 3566 3567 if (verbosity >= 5) { 3568 /* 3569 * Report the list of segments that comprise the object. 3570 */ 3571 uint64_t start = 0; 3572 uint64_t end; 3573 uint64_t blkfill = 1; 3574 int minlvl = 1; 3575 3576 if (dn->dn_type == DMU_OT_DNODE) { 3577 minlvl = 0; 3578 blkfill = DNODES_PER_BLOCK; 3579 } 3580 3581 for (;;) { 3582 char segsize[32]; 3583 /* make sure nicenum has enough space */ 3584 _Static_assert(sizeof (segsize) >= NN_NUMBUF_SZ, 3585 "segsize truncated"); 3586 error = dnode_next_offset(dn, 3587 0, &start, minlvl, blkfill, 0); 3588 if (error) 3589 break; 3590 end = start; 3591 error = dnode_next_offset(dn, 3592 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 3593 zdb_nicenum(end - start, segsize, sizeof (segsize)); 3594 (void) printf("\t\tsegment [%016llx, %016llx)" 3595 " size %5s\n", (u_longlong_t)start, 3596 (u_longlong_t)end, segsize); 3597 if (error) 3598 break; 3599 start = end; 3600 } 3601 } 3602 3603 out: 3604 if (db != NULL) 3605 dmu_buf_rele(db, FTAG); 3606 if (dnode_held) 3607 dnode_rele(dn, FTAG); 3608 } 3609 3610 static void 3611 count_dir_mos_objects(dsl_dir_t *dd) 3612 { 3613 mos_obj_refd(dd->dd_object); 3614 mos_obj_refd(dsl_dir_phys(dd)->dd_child_dir_zapobj); 3615 mos_obj_refd(dsl_dir_phys(dd)->dd_deleg_zapobj); 3616 mos_obj_refd(dsl_dir_phys(dd)->dd_props_zapobj); 3617 mos_obj_refd(dsl_dir_phys(dd)->dd_clones); 3618 3619 /* 3620 * The dd_crypto_obj can be referenced by multiple dsl_dir's. 3621 * Ignore the references after the first one. 3622 */ 3623 mos_obj_refd_multiple(dd->dd_crypto_obj); 3624 } 3625 3626 static void 3627 count_ds_mos_objects(dsl_dataset_t *ds) 3628 { 3629 mos_obj_refd(ds->ds_object); 3630 mos_obj_refd(dsl_dataset_phys(ds)->ds_next_clones_obj); 3631 mos_obj_refd(dsl_dataset_phys(ds)->ds_props_obj); 3632 mos_obj_refd(dsl_dataset_phys(ds)->ds_userrefs_obj); 3633 mos_obj_refd(dsl_dataset_phys(ds)->ds_snapnames_zapobj); 3634 mos_obj_refd(ds->ds_bookmarks_obj); 3635 3636 if (!dsl_dataset_is_snapshot(ds)) { 3637 count_dir_mos_objects(ds->ds_dir); 3638 } 3639 } 3640 3641 static const char *objset_types[DMU_OST_NUMTYPES] = { 3642 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 3643 3644 /* 3645 * Parse a string denoting a range of object IDs of the form 3646 * <start>[:<end>[:flags]], and store the results in zor. 3647 * Return 0 on success. On error, return 1 and update the msg 3648 * pointer to point to a descriptive error message. 3649 */ 3650 static int 3651 parse_object_range(char *range, zopt_object_range_t *zor, char **msg) 3652 { 3653 uint64_t flags = 0; 3654 char *p, *s, *dup, *flagstr, *tmp = NULL; 3655 size_t len; 3656 int i; 3657 int rc = 0; 3658 3659 if (strchr(range, ':') == NULL) { 3660 zor->zor_obj_start = strtoull(range, &p, 0); 3661 if (*p != '\0') { 3662 *msg = "Invalid characters in object ID"; 3663 rc = 1; 3664 } 3665 zor->zor_obj_start = ZDB_MAP_OBJECT_ID(zor->zor_obj_start); 3666 zor->zor_obj_end = zor->zor_obj_start; 3667 return (rc); 3668 } 3669 3670 if (strchr(range, ':') == range) { 3671 *msg = "Invalid leading colon"; 3672 rc = 1; 3673 return (rc); 3674 } 3675 3676 len = strlen(range); 3677 if (range[len - 1] == ':') { 3678 *msg = "Invalid trailing colon"; 3679 rc = 1; 3680 return (rc); 3681 } 3682 3683 dup = strdup(range); 3684 s = strtok_r(dup, ":", &tmp); 3685 zor->zor_obj_start = strtoull(s, &p, 0); 3686 3687 if (*p != '\0') { 3688 *msg = "Invalid characters in start object ID"; 3689 rc = 1; 3690 goto out; 3691 } 3692 3693 s = strtok_r(NULL, ":", &tmp); 3694 zor->zor_obj_end = strtoull(s, &p, 0); 3695 3696 if (*p != '\0') { 3697 *msg = "Invalid characters in end object ID"; 3698 rc = 1; 3699 goto out; 3700 } 3701 3702 if (zor->zor_obj_start > zor->zor_obj_end) { 3703 *msg = "Start object ID may not exceed end object ID"; 3704 rc = 1; 3705 goto out; 3706 } 3707 3708 s = strtok_r(NULL, ":", &tmp); 3709 if (s == NULL) { 3710 zor->zor_flags = ZOR_FLAG_ALL_TYPES; 3711 goto out; 3712 } else if (strtok_r(NULL, ":", &tmp) != NULL) { 3713 *msg = "Invalid colon-delimited field after flags"; 3714 rc = 1; 3715 goto out; 3716 } 3717 3718 flagstr = s; 3719 for (i = 0; flagstr[i]; i++) { 3720 int bit; 3721 boolean_t negation = (flagstr[i] == '-'); 3722 3723 if (negation) { 3724 i++; 3725 if (flagstr[i] == '\0') { 3726 *msg = "Invalid trailing negation operator"; 3727 rc = 1; 3728 goto out; 3729 } 3730 } 3731 bit = flagbits[(uchar_t)flagstr[i]]; 3732 if (bit == 0) { 3733 *msg = "Invalid flag"; 3734 rc = 1; 3735 goto out; 3736 } 3737 if (negation) 3738 flags &= ~bit; 3739 else 3740 flags |= bit; 3741 } 3742 zor->zor_flags = flags; 3743 3744 zor->zor_obj_start = ZDB_MAP_OBJECT_ID(zor->zor_obj_start); 3745 zor->zor_obj_end = ZDB_MAP_OBJECT_ID(zor->zor_obj_end); 3746 3747 out: 3748 free(dup); 3749 return (rc); 3750 } 3751 3752 static void 3753 dump_objset(objset_t *os) 3754 { 3755 dmu_objset_stats_t dds = { 0 }; 3756 uint64_t object, object_count; 3757 uint64_t refdbytes, usedobjs, scratch; 3758 char numbuf[32]; 3759 char blkbuf[BP_SPRINTF_LEN + 20]; 3760 char osname[ZFS_MAX_DATASET_NAME_LEN]; 3761 const char *type = "UNKNOWN"; 3762 int verbosity = dump_opt['d']; 3763 boolean_t print_header; 3764 unsigned i; 3765 int error; 3766 uint64_t total_slots_used = 0; 3767 uint64_t max_slot_used = 0; 3768 uint64_t dnode_slots; 3769 uint64_t obj_start; 3770 uint64_t obj_end; 3771 uint64_t flags; 3772 3773 /* make sure nicenum has enough space */ 3774 _Static_assert(sizeof (numbuf) >= NN_NUMBUF_SZ, "numbuf truncated"); 3775 3776 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 3777 dmu_objset_fast_stat(os, &dds); 3778 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 3779 3780 print_header = B_TRUE; 3781 3782 if (dds.dds_type < DMU_OST_NUMTYPES) 3783 type = objset_types[dds.dds_type]; 3784 3785 if (dds.dds_type == DMU_OST_META) { 3786 dds.dds_creation_txg = TXG_INITIAL; 3787 usedobjs = BP_GET_FILL(os->os_rootbp); 3788 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)-> 3789 dd_used_bytes; 3790 } else { 3791 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 3792 } 3793 3794 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp)); 3795 3796 zdb_nicenum(refdbytes, numbuf, sizeof (numbuf)); 3797 3798 if (verbosity >= 4) { 3799 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp "); 3800 (void) snprintf_blkptr(blkbuf + strlen(blkbuf), 3801 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp); 3802 } else { 3803 blkbuf[0] = '\0'; 3804 } 3805 3806 dmu_objset_name(os, osname); 3807 3808 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 3809 "%s, %llu objects%s%s\n", 3810 osname, type, (u_longlong_t)dmu_objset_id(os), 3811 (u_longlong_t)dds.dds_creation_txg, 3812 numbuf, (u_longlong_t)usedobjs, blkbuf, 3813 (dds.dds_inconsistent) ? " (inconsistent)" : ""); 3814 3815 for (i = 0; i < zopt_object_args; i++) { 3816 obj_start = zopt_object_ranges[i].zor_obj_start; 3817 obj_end = zopt_object_ranges[i].zor_obj_end; 3818 flags = zopt_object_ranges[i].zor_flags; 3819 3820 object = obj_start; 3821 if (object == 0 || obj_start == obj_end) 3822 dump_object(os, object, verbosity, &print_header, NULL, 3823 flags); 3824 else 3825 object--; 3826 3827 while ((dmu_object_next(os, &object, B_FALSE, 0) == 0) && 3828 object <= obj_end) { 3829 dump_object(os, object, verbosity, &print_header, NULL, 3830 flags); 3831 } 3832 } 3833 3834 if (zopt_object_args > 0) { 3835 (void) printf("\n"); 3836 return; 3837 } 3838 3839 if (dump_opt['i'] != 0 || verbosity >= 2) 3840 dump_intent_log(dmu_objset_zil(os)); 3841 3842 if (dmu_objset_ds(os) != NULL) { 3843 dsl_dataset_t *ds = dmu_objset_ds(os); 3844 dump_blkptr_list(&ds->ds_deadlist, "Deadlist"); 3845 if (dsl_deadlist_is_open(&ds->ds_dir->dd_livelist) && 3846 !dmu_objset_is_snapshot(os)) { 3847 dump_blkptr_list(&ds->ds_dir->dd_livelist, "Livelist"); 3848 if (verify_dd_livelist(os) != 0) 3849 fatal("livelist is incorrect"); 3850 } 3851 3852 if (dsl_dataset_remap_deadlist_exists(ds)) { 3853 (void) printf("ds_remap_deadlist:\n"); 3854 dump_blkptr_list(&ds->ds_remap_deadlist, "Deadlist"); 3855 } 3856 count_ds_mos_objects(ds); 3857 } 3858 3859 if (dmu_objset_ds(os) != NULL) 3860 dump_bookmarks(os, verbosity); 3861 3862 if (verbosity < 2) 3863 return; 3864 3865 if (BP_IS_HOLE(os->os_rootbp)) 3866 return; 3867 3868 dump_object(os, 0, verbosity, &print_header, NULL, 0); 3869 object_count = 0; 3870 if (DMU_USERUSED_DNODE(os) != NULL && 3871 DMU_USERUSED_DNODE(os)->dn_type != 0) { 3872 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header, 3873 NULL, 0); 3874 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header, 3875 NULL, 0); 3876 } 3877 3878 if (DMU_PROJECTUSED_DNODE(os) != NULL && 3879 DMU_PROJECTUSED_DNODE(os)->dn_type != 0) 3880 dump_object(os, DMU_PROJECTUSED_OBJECT, verbosity, 3881 &print_header, NULL, 0); 3882 3883 object = 0; 3884 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 3885 dump_object(os, object, verbosity, &print_header, &dnode_slots, 3886 0); 3887 object_count++; 3888 total_slots_used += dnode_slots; 3889 max_slot_used = object + dnode_slots - 1; 3890 } 3891 3892 (void) printf("\n"); 3893 3894 (void) printf(" Dnode slots:\n"); 3895 (void) printf("\tTotal used: %10llu\n", 3896 (u_longlong_t)total_slots_used); 3897 (void) printf("\tMax used: %10llu\n", 3898 (u_longlong_t)max_slot_used); 3899 (void) printf("\tPercent empty: %10lf\n", 3900 (double)(max_slot_used - total_slots_used)*100 / 3901 (double)max_slot_used); 3902 (void) printf("\n"); 3903 3904 if (error != ESRCH) { 3905 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 3906 abort(); 3907 } 3908 3909 ASSERT3U(object_count, ==, usedobjs); 3910 3911 if (leaked_objects != 0) { 3912 (void) printf("%d potentially leaked objects detected\n", 3913 leaked_objects); 3914 leaked_objects = 0; 3915 } 3916 } 3917 3918 static void 3919 dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 3920 { 3921 time_t timestamp = ub->ub_timestamp; 3922 3923 (void) printf("%s", header ? header : ""); 3924 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 3925 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 3926 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 3927 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 3928 (void) printf("\ttimestamp = %llu UTC = %s", 3929 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 3930 3931 (void) printf("\tmmp_magic = %016llx\n", 3932 (u_longlong_t)ub->ub_mmp_magic); 3933 if (MMP_VALID(ub)) { 3934 (void) printf("\tmmp_delay = %0llu\n", 3935 (u_longlong_t)ub->ub_mmp_delay); 3936 if (MMP_SEQ_VALID(ub)) 3937 (void) printf("\tmmp_seq = %u\n", 3938 (unsigned int) MMP_SEQ(ub)); 3939 if (MMP_FAIL_INT_VALID(ub)) 3940 (void) printf("\tmmp_fail = %u\n", 3941 (unsigned int) MMP_FAIL_INT(ub)); 3942 if (MMP_INTERVAL_VALID(ub)) 3943 (void) printf("\tmmp_write = %u\n", 3944 (unsigned int) MMP_INTERVAL(ub)); 3945 /* After MMP_* to make summarize_uberblock_mmp cleaner */ 3946 (void) printf("\tmmp_valid = %x\n", 3947 (unsigned int) ub->ub_mmp_config & 0xFF); 3948 } 3949 3950 if (dump_opt['u'] >= 4) { 3951 char blkbuf[BP_SPRINTF_LEN]; 3952 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp); 3953 (void) printf("\trootbp = %s\n", blkbuf); 3954 } 3955 (void) printf("\tcheckpoint_txg = %llu\n", 3956 (u_longlong_t)ub->ub_checkpoint_txg); 3957 (void) printf("%s", footer ? footer : ""); 3958 } 3959 3960 static void 3961 dump_config(spa_t *spa) 3962 { 3963 dmu_buf_t *db; 3964 size_t nvsize = 0; 3965 int error = 0; 3966 3967 3968 error = dmu_bonus_hold(spa->spa_meta_objset, 3969 spa->spa_config_object, FTAG, &db); 3970 3971 if (error == 0) { 3972 nvsize = *(uint64_t *)db->db_data; 3973 dmu_buf_rele(db, FTAG); 3974 3975 (void) printf("\nMOS Configuration:\n"); 3976 dump_packed_nvlist(spa->spa_meta_objset, 3977 spa->spa_config_object, (void *)&nvsize, 1); 3978 } else { 3979 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 3980 (u_longlong_t)spa->spa_config_object, error); 3981 } 3982 } 3983 3984 static void 3985 dump_cachefile(const char *cachefile) 3986 { 3987 int fd; 3988 struct stat64 statbuf; 3989 char *buf; 3990 nvlist_t *config; 3991 3992 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 3993 (void) printf("cannot open '%s': %s\n", cachefile, 3994 strerror(errno)); 3995 exit(1); 3996 } 3997 3998 if (fstat64(fd, &statbuf) != 0) { 3999 (void) printf("failed to stat '%s': %s\n", cachefile, 4000 strerror(errno)); 4001 exit(1); 4002 } 4003 4004 if ((buf = malloc(statbuf.st_size)) == NULL) { 4005 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 4006 (u_longlong_t)statbuf.st_size); 4007 exit(1); 4008 } 4009 4010 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 4011 (void) fprintf(stderr, "failed to read %llu bytes\n", 4012 (u_longlong_t)statbuf.st_size); 4013 exit(1); 4014 } 4015 4016 (void) close(fd); 4017 4018 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 4019 (void) fprintf(stderr, "failed to unpack nvlist\n"); 4020 exit(1); 4021 } 4022 4023 free(buf); 4024 4025 dump_nvlist(config, 0); 4026 4027 nvlist_free(config); 4028 } 4029 4030 /* 4031 * ZFS label nvlist stats 4032 */ 4033 typedef struct zdb_nvl_stats { 4034 int zns_list_count; 4035 int zns_leaf_count; 4036 size_t zns_leaf_largest; 4037 size_t zns_leaf_total; 4038 nvlist_t *zns_string; 4039 nvlist_t *zns_uint64; 4040 nvlist_t *zns_boolean; 4041 } zdb_nvl_stats_t; 4042 4043 static void 4044 collect_nvlist_stats(nvlist_t *nvl, zdb_nvl_stats_t *stats) 4045 { 4046 nvlist_t *list, **array; 4047 nvpair_t *nvp = NULL; 4048 char *name; 4049 uint_t i, items; 4050 4051 stats->zns_list_count++; 4052 4053 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4054 name = nvpair_name(nvp); 4055 4056 switch (nvpair_type(nvp)) { 4057 case DATA_TYPE_STRING: 4058 fnvlist_add_string(stats->zns_string, name, 4059 fnvpair_value_string(nvp)); 4060 break; 4061 case DATA_TYPE_UINT64: 4062 fnvlist_add_uint64(stats->zns_uint64, name, 4063 fnvpair_value_uint64(nvp)); 4064 break; 4065 case DATA_TYPE_BOOLEAN: 4066 fnvlist_add_boolean(stats->zns_boolean, name); 4067 break; 4068 case DATA_TYPE_NVLIST: 4069 if (nvpair_value_nvlist(nvp, &list) == 0) 4070 collect_nvlist_stats(list, stats); 4071 break; 4072 case DATA_TYPE_NVLIST_ARRAY: 4073 if (nvpair_value_nvlist_array(nvp, &array, &items) != 0) 4074 break; 4075 4076 for (i = 0; i < items; i++) { 4077 collect_nvlist_stats(array[i], stats); 4078 4079 /* collect stats on leaf vdev */ 4080 if (strcmp(name, "children") == 0) { 4081 size_t size; 4082 4083 (void) nvlist_size(array[i], &size, 4084 NV_ENCODE_XDR); 4085 stats->zns_leaf_total += size; 4086 if (size > stats->zns_leaf_largest) 4087 stats->zns_leaf_largest = size; 4088 stats->zns_leaf_count++; 4089 } 4090 } 4091 break; 4092 default: 4093 (void) printf("skip type %d!\n", (int)nvpair_type(nvp)); 4094 } 4095 } 4096 } 4097 4098 static void 4099 dump_nvlist_stats(nvlist_t *nvl, size_t cap) 4100 { 4101 zdb_nvl_stats_t stats = { 0 }; 4102 size_t size, sum = 0, total; 4103 size_t noise; 4104 4105 /* requires nvlist with non-unique names for stat collection */ 4106 VERIFY0(nvlist_alloc(&stats.zns_string, 0, 0)); 4107 VERIFY0(nvlist_alloc(&stats.zns_uint64, 0, 0)); 4108 VERIFY0(nvlist_alloc(&stats.zns_boolean, 0, 0)); 4109 VERIFY0(nvlist_size(stats.zns_boolean, &noise, NV_ENCODE_XDR)); 4110 4111 (void) printf("\n\nZFS Label NVList Config Stats:\n"); 4112 4113 VERIFY0(nvlist_size(nvl, &total, NV_ENCODE_XDR)); 4114 (void) printf(" %d bytes used, %d bytes free (using %4.1f%%)\n\n", 4115 (int)total, (int)(cap - total), 100.0 * total / cap); 4116 4117 collect_nvlist_stats(nvl, &stats); 4118 4119 VERIFY0(nvlist_size(stats.zns_uint64, &size, NV_ENCODE_XDR)); 4120 size -= noise; 4121 sum += size; 4122 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n", "integers:", 4123 (int)fnvlist_num_pairs(stats.zns_uint64), 4124 (int)size, 100.0 * size / total); 4125 4126 VERIFY0(nvlist_size(stats.zns_string, &size, NV_ENCODE_XDR)); 4127 size -= noise; 4128 sum += size; 4129 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n", "strings:", 4130 (int)fnvlist_num_pairs(stats.zns_string), 4131 (int)size, 100.0 * size / total); 4132 4133 VERIFY0(nvlist_size(stats.zns_boolean, &size, NV_ENCODE_XDR)); 4134 size -= noise; 4135 sum += size; 4136 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n", "booleans:", 4137 (int)fnvlist_num_pairs(stats.zns_boolean), 4138 (int)size, 100.0 * size / total); 4139 4140 size = total - sum; /* treat remainder as nvlist overhead */ 4141 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n\n", "nvlists:", 4142 stats.zns_list_count, (int)size, 100.0 * size / total); 4143 4144 if (stats.zns_leaf_count > 0) { 4145 size_t average = stats.zns_leaf_total / stats.zns_leaf_count; 4146 4147 (void) printf("%12s %4d %6d bytes average\n", "leaf vdevs:", 4148 stats.zns_leaf_count, (int)average); 4149 (void) printf("%24d bytes largest\n", 4150 (int)stats.zns_leaf_largest); 4151 4152 if (dump_opt['l'] >= 3 && average > 0) 4153 (void) printf(" space for %d additional leaf vdevs\n", 4154 (int)((cap - total) / average)); 4155 } 4156 (void) printf("\n"); 4157 4158 nvlist_free(stats.zns_string); 4159 nvlist_free(stats.zns_uint64); 4160 nvlist_free(stats.zns_boolean); 4161 } 4162 4163 typedef struct cksum_record { 4164 zio_cksum_t cksum; 4165 boolean_t labels[VDEV_LABELS]; 4166 avl_node_t link; 4167 } cksum_record_t; 4168 4169 static int 4170 cksum_record_compare(const void *x1, const void *x2) 4171 { 4172 const cksum_record_t *l = (cksum_record_t *)x1; 4173 const cksum_record_t *r = (cksum_record_t *)x2; 4174 int arraysize = ARRAY_SIZE(l->cksum.zc_word); 4175 int difference = 0; 4176 4177 for (int i = 0; i < arraysize; i++) { 4178 difference = TREE_CMP(l->cksum.zc_word[i], r->cksum.zc_word[i]); 4179 if (difference) 4180 break; 4181 } 4182 4183 return (difference); 4184 } 4185 4186 static cksum_record_t * 4187 cksum_record_alloc(zio_cksum_t *cksum, int l) 4188 { 4189 cksum_record_t *rec; 4190 4191 rec = umem_zalloc(sizeof (*rec), UMEM_NOFAIL); 4192 rec->cksum = *cksum; 4193 rec->labels[l] = B_TRUE; 4194 4195 return (rec); 4196 } 4197 4198 static cksum_record_t * 4199 cksum_record_lookup(avl_tree_t *tree, zio_cksum_t *cksum) 4200 { 4201 cksum_record_t lookup = { .cksum = *cksum }; 4202 avl_index_t where; 4203 4204 return (avl_find(tree, &lookup, &where)); 4205 } 4206 4207 static cksum_record_t * 4208 cksum_record_insert(avl_tree_t *tree, zio_cksum_t *cksum, int l) 4209 { 4210 cksum_record_t *rec; 4211 4212 rec = cksum_record_lookup(tree, cksum); 4213 if (rec) { 4214 rec->labels[l] = B_TRUE; 4215 } else { 4216 rec = cksum_record_alloc(cksum, l); 4217 avl_add(tree, rec); 4218 } 4219 4220 return (rec); 4221 } 4222 4223 static int 4224 first_label(cksum_record_t *rec) 4225 { 4226 for (int i = 0; i < VDEV_LABELS; i++) 4227 if (rec->labels[i]) 4228 return (i); 4229 4230 return (-1); 4231 } 4232 4233 static void 4234 print_label_numbers(char *prefix, cksum_record_t *rec) 4235 { 4236 printf("%s", prefix); 4237 for (int i = 0; i < VDEV_LABELS; i++) 4238 if (rec->labels[i] == B_TRUE) 4239 printf("%d ", i); 4240 printf("\n"); 4241 } 4242 4243 #define MAX_UBERBLOCK_COUNT (VDEV_UBERBLOCK_RING >> UBERBLOCK_SHIFT) 4244 4245 typedef struct zdb_label { 4246 vdev_label_t label; 4247 uint64_t label_offset; 4248 nvlist_t *config_nv; 4249 cksum_record_t *config; 4250 cksum_record_t *uberblocks[MAX_UBERBLOCK_COUNT]; 4251 boolean_t header_printed; 4252 boolean_t read_failed; 4253 boolean_t cksum_valid; 4254 } zdb_label_t; 4255 4256 static void 4257 print_label_header(zdb_label_t *label, int l) 4258 { 4259 4260 if (dump_opt['q']) 4261 return; 4262 4263 if (label->header_printed == B_TRUE) 4264 return; 4265 4266 (void) printf("------------------------------------\n"); 4267 (void) printf("LABEL %d %s\n", l, 4268 label->cksum_valid ? "" : "(Bad label cksum)"); 4269 (void) printf("------------------------------------\n"); 4270 4271 label->header_printed = B_TRUE; 4272 } 4273 4274 static void 4275 print_l2arc_header(void) 4276 { 4277 (void) printf("------------------------------------\n"); 4278 (void) printf("L2ARC device header\n"); 4279 (void) printf("------------------------------------\n"); 4280 } 4281 4282 static void 4283 print_l2arc_log_blocks(void) 4284 { 4285 (void) printf("------------------------------------\n"); 4286 (void) printf("L2ARC device log blocks\n"); 4287 (void) printf("------------------------------------\n"); 4288 } 4289 4290 static void 4291 dump_l2arc_log_entries(uint64_t log_entries, 4292 l2arc_log_ent_phys_t *le, uint64_t i) 4293 { 4294 for (int j = 0; j < log_entries; j++) { 4295 dva_t dva = le[j].le_dva; 4296 (void) printf("lb[%4llu]\tle[%4d]\tDVA asize: %llu, " 4297 "vdev: %llu, offset: %llu\n", 4298 (u_longlong_t)i, j + 1, 4299 (u_longlong_t)DVA_GET_ASIZE(&dva), 4300 (u_longlong_t)DVA_GET_VDEV(&dva), 4301 (u_longlong_t)DVA_GET_OFFSET(&dva)); 4302 (void) printf("|\t\t\t\tbirth: %llu\n", 4303 (u_longlong_t)le[j].le_birth); 4304 (void) printf("|\t\t\t\tlsize: %llu\n", 4305 (u_longlong_t)L2BLK_GET_LSIZE((&le[j])->le_prop)); 4306 (void) printf("|\t\t\t\tpsize: %llu\n", 4307 (u_longlong_t)L2BLK_GET_PSIZE((&le[j])->le_prop)); 4308 (void) printf("|\t\t\t\tcompr: %llu\n", 4309 (u_longlong_t)L2BLK_GET_COMPRESS((&le[j])->le_prop)); 4310 (void) printf("|\t\t\t\tcomplevel: %llu\n", 4311 (u_longlong_t)(&le[j])->le_complevel); 4312 (void) printf("|\t\t\t\ttype: %llu\n", 4313 (u_longlong_t)L2BLK_GET_TYPE((&le[j])->le_prop)); 4314 (void) printf("|\t\t\t\tprotected: %llu\n", 4315 (u_longlong_t)L2BLK_GET_PROTECTED((&le[j])->le_prop)); 4316 (void) printf("|\t\t\t\tprefetch: %llu\n", 4317 (u_longlong_t)L2BLK_GET_PREFETCH((&le[j])->le_prop)); 4318 (void) printf("|\t\t\t\taddress: %llu\n", 4319 (u_longlong_t)le[j].le_daddr); 4320 (void) printf("|\t\t\t\tARC state: %llu\n", 4321 (u_longlong_t)L2BLK_GET_STATE((&le[j])->le_prop)); 4322 (void) printf("|\n"); 4323 } 4324 (void) printf("\n"); 4325 } 4326 4327 static void 4328 dump_l2arc_log_blkptr(l2arc_log_blkptr_t lbps) 4329 { 4330 (void) printf("|\t\tdaddr: %llu\n", (u_longlong_t)lbps.lbp_daddr); 4331 (void) printf("|\t\tpayload_asize: %llu\n", 4332 (u_longlong_t)lbps.lbp_payload_asize); 4333 (void) printf("|\t\tpayload_start: %llu\n", 4334 (u_longlong_t)lbps.lbp_payload_start); 4335 (void) printf("|\t\tlsize: %llu\n", 4336 (u_longlong_t)L2BLK_GET_LSIZE((&lbps)->lbp_prop)); 4337 (void) printf("|\t\tasize: %llu\n", 4338 (u_longlong_t)L2BLK_GET_PSIZE((&lbps)->lbp_prop)); 4339 (void) printf("|\t\tcompralgo: %llu\n", 4340 (u_longlong_t)L2BLK_GET_COMPRESS((&lbps)->lbp_prop)); 4341 (void) printf("|\t\tcksumalgo: %llu\n", 4342 (u_longlong_t)L2BLK_GET_CHECKSUM((&lbps)->lbp_prop)); 4343 (void) printf("|\n\n"); 4344 } 4345 4346 static void 4347 dump_l2arc_log_blocks(int fd, l2arc_dev_hdr_phys_t l2dhdr, 4348 l2arc_dev_hdr_phys_t *rebuild) 4349 { 4350 l2arc_log_blk_phys_t this_lb; 4351 uint64_t asize; 4352 l2arc_log_blkptr_t lbps[2]; 4353 abd_t *abd; 4354 zio_cksum_t cksum; 4355 int failed = 0; 4356 l2arc_dev_t dev; 4357 4358 if (!dump_opt['q']) 4359 print_l2arc_log_blocks(); 4360 memcpy(lbps, l2dhdr.dh_start_lbps, sizeof (lbps)); 4361 4362 dev.l2ad_evict = l2dhdr.dh_evict; 4363 dev.l2ad_start = l2dhdr.dh_start; 4364 dev.l2ad_end = l2dhdr.dh_end; 4365 4366 if (l2dhdr.dh_start_lbps[0].lbp_daddr == 0) { 4367 /* no log blocks to read */ 4368 if (!dump_opt['q']) { 4369 (void) printf("No log blocks to read\n"); 4370 (void) printf("\n"); 4371 } 4372 return; 4373 } else { 4374 dev.l2ad_hand = lbps[0].lbp_daddr + 4375 L2BLK_GET_PSIZE((&lbps[0])->lbp_prop); 4376 } 4377 4378 dev.l2ad_first = !!(l2dhdr.dh_flags & L2ARC_DEV_HDR_EVICT_FIRST); 4379 4380 for (;;) { 4381 if (!l2arc_log_blkptr_valid(&dev, &lbps[0])) 4382 break; 4383 4384 /* L2BLK_GET_PSIZE returns aligned size for log blocks */ 4385 asize = L2BLK_GET_PSIZE((&lbps[0])->lbp_prop); 4386 if (pread64(fd, &this_lb, asize, lbps[0].lbp_daddr) != asize) { 4387 if (!dump_opt['q']) { 4388 (void) printf("Error while reading next log " 4389 "block\n\n"); 4390 } 4391 break; 4392 } 4393 4394 fletcher_4_native_varsize(&this_lb, asize, &cksum); 4395 if (!ZIO_CHECKSUM_EQUAL(cksum, lbps[0].lbp_cksum)) { 4396 failed++; 4397 if (!dump_opt['q']) { 4398 (void) printf("Invalid cksum\n"); 4399 dump_l2arc_log_blkptr(lbps[0]); 4400 } 4401 break; 4402 } 4403 4404 switch (L2BLK_GET_COMPRESS((&lbps[0])->lbp_prop)) { 4405 case ZIO_COMPRESS_OFF: 4406 break; 4407 default: 4408 abd = abd_alloc_for_io(asize, B_TRUE); 4409 abd_copy_from_buf_off(abd, &this_lb, 0, asize); 4410 zio_decompress_data(L2BLK_GET_COMPRESS( 4411 (&lbps[0])->lbp_prop), abd, &this_lb, 4412 asize, sizeof (this_lb), NULL); 4413 abd_free(abd); 4414 break; 4415 } 4416 4417 if (this_lb.lb_magic == BSWAP_64(L2ARC_LOG_BLK_MAGIC)) 4418 byteswap_uint64_array(&this_lb, sizeof (this_lb)); 4419 if (this_lb.lb_magic != L2ARC_LOG_BLK_MAGIC) { 4420 if (!dump_opt['q']) 4421 (void) printf("Invalid log block magic\n\n"); 4422 break; 4423 } 4424 4425 rebuild->dh_lb_count++; 4426 rebuild->dh_lb_asize += asize; 4427 if (dump_opt['l'] > 1 && !dump_opt['q']) { 4428 (void) printf("lb[%4llu]\tmagic: %llu\n", 4429 (u_longlong_t)rebuild->dh_lb_count, 4430 (u_longlong_t)this_lb.lb_magic); 4431 dump_l2arc_log_blkptr(lbps[0]); 4432 } 4433 4434 if (dump_opt['l'] > 2 && !dump_opt['q']) 4435 dump_l2arc_log_entries(l2dhdr.dh_log_entries, 4436 this_lb.lb_entries, 4437 rebuild->dh_lb_count); 4438 4439 if (l2arc_range_check_overlap(lbps[1].lbp_payload_start, 4440 lbps[0].lbp_payload_start, dev.l2ad_evict) && 4441 !dev.l2ad_first) 4442 break; 4443 4444 lbps[0] = lbps[1]; 4445 lbps[1] = this_lb.lb_prev_lbp; 4446 } 4447 4448 if (!dump_opt['q']) { 4449 (void) printf("log_blk_count:\t %llu with valid cksum\n", 4450 (u_longlong_t)rebuild->dh_lb_count); 4451 (void) printf("\t\t %d with invalid cksum\n", failed); 4452 (void) printf("log_blk_asize:\t %llu\n\n", 4453 (u_longlong_t)rebuild->dh_lb_asize); 4454 } 4455 } 4456 4457 static int 4458 dump_l2arc_header(int fd) 4459 { 4460 l2arc_dev_hdr_phys_t l2dhdr = {0}, rebuild = {0}; 4461 int error = B_FALSE; 4462 4463 if (pread64(fd, &l2dhdr, sizeof (l2dhdr), 4464 VDEV_LABEL_START_SIZE) != sizeof (l2dhdr)) { 4465 error = B_TRUE; 4466 } else { 4467 if (l2dhdr.dh_magic == BSWAP_64(L2ARC_DEV_HDR_MAGIC)) 4468 byteswap_uint64_array(&l2dhdr, sizeof (l2dhdr)); 4469 4470 if (l2dhdr.dh_magic != L2ARC_DEV_HDR_MAGIC) 4471 error = B_TRUE; 4472 } 4473 4474 if (error) { 4475 (void) printf("L2ARC device header not found\n\n"); 4476 /* Do not return an error here for backward compatibility */ 4477 return (0); 4478 } else if (!dump_opt['q']) { 4479 print_l2arc_header(); 4480 4481 (void) printf(" magic: %llu\n", 4482 (u_longlong_t)l2dhdr.dh_magic); 4483 (void) printf(" version: %llu\n", 4484 (u_longlong_t)l2dhdr.dh_version); 4485 (void) printf(" pool_guid: %llu\n", 4486 (u_longlong_t)l2dhdr.dh_spa_guid); 4487 (void) printf(" flags: %llu\n", 4488 (u_longlong_t)l2dhdr.dh_flags); 4489 (void) printf(" start_lbps[0]: %llu\n", 4490 (u_longlong_t) 4491 l2dhdr.dh_start_lbps[0].lbp_daddr); 4492 (void) printf(" start_lbps[1]: %llu\n", 4493 (u_longlong_t) 4494 l2dhdr.dh_start_lbps[1].lbp_daddr); 4495 (void) printf(" log_blk_ent: %llu\n", 4496 (u_longlong_t)l2dhdr.dh_log_entries); 4497 (void) printf(" start: %llu\n", 4498 (u_longlong_t)l2dhdr.dh_start); 4499 (void) printf(" end: %llu\n", 4500 (u_longlong_t)l2dhdr.dh_end); 4501 (void) printf(" evict: %llu\n", 4502 (u_longlong_t)l2dhdr.dh_evict); 4503 (void) printf(" lb_asize_refcount: %llu\n", 4504 (u_longlong_t)l2dhdr.dh_lb_asize); 4505 (void) printf(" lb_count_refcount: %llu\n", 4506 (u_longlong_t)l2dhdr.dh_lb_count); 4507 (void) printf(" trim_action_time: %llu\n", 4508 (u_longlong_t)l2dhdr.dh_trim_action_time); 4509 (void) printf(" trim_state: %llu\n\n", 4510 (u_longlong_t)l2dhdr.dh_trim_state); 4511 } 4512 4513 dump_l2arc_log_blocks(fd, l2dhdr, &rebuild); 4514 /* 4515 * The total aligned size of log blocks and the number of log blocks 4516 * reported in the header of the device may be less than what zdb 4517 * reports by dump_l2arc_log_blocks() which emulates l2arc_rebuild(). 4518 * This happens because dump_l2arc_log_blocks() lacks the memory 4519 * pressure valve that l2arc_rebuild() has. Thus, if we are on a system 4520 * with low memory, l2arc_rebuild will exit prematurely and dh_lb_asize 4521 * and dh_lb_count will be lower to begin with than what exists on the 4522 * device. This is normal and zdb should not exit with an error. The 4523 * opposite case should never happen though, the values reported in the 4524 * header should never be higher than what dump_l2arc_log_blocks() and 4525 * l2arc_rebuild() report. If this happens there is a leak in the 4526 * accounting of log blocks. 4527 */ 4528 if (l2dhdr.dh_lb_asize > rebuild.dh_lb_asize || 4529 l2dhdr.dh_lb_count > rebuild.dh_lb_count) 4530 return (1); 4531 4532 return (0); 4533 } 4534 4535 static void 4536 dump_config_from_label(zdb_label_t *label, size_t buflen, int l) 4537 { 4538 if (dump_opt['q']) 4539 return; 4540 4541 if ((dump_opt['l'] < 3) && (first_label(label->config) != l)) 4542 return; 4543 4544 print_label_header(label, l); 4545 dump_nvlist(label->config_nv, 4); 4546 print_label_numbers(" labels = ", label->config); 4547 4548 if (dump_opt['l'] >= 2) 4549 dump_nvlist_stats(label->config_nv, buflen); 4550 } 4551 4552 #define ZDB_MAX_UB_HEADER_SIZE 32 4553 4554 static void 4555 dump_label_uberblocks(zdb_label_t *label, uint64_t ashift, int label_num) 4556 { 4557 4558 vdev_t vd; 4559 char header[ZDB_MAX_UB_HEADER_SIZE]; 4560 4561 vd.vdev_ashift = ashift; 4562 vd.vdev_top = &vd; 4563 4564 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(&vd); i++) { 4565 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(&vd, i); 4566 uberblock_t *ub = (void *)((char *)&label->label + uoff); 4567 cksum_record_t *rec = label->uberblocks[i]; 4568 4569 if (rec == NULL) { 4570 if (dump_opt['u'] >= 2) { 4571 print_label_header(label, label_num); 4572 (void) printf(" Uberblock[%d] invalid\n", i); 4573 } 4574 continue; 4575 } 4576 4577 if ((dump_opt['u'] < 3) && (first_label(rec) != label_num)) 4578 continue; 4579 4580 if ((dump_opt['u'] < 4) && 4581 (ub->ub_mmp_magic == MMP_MAGIC) && ub->ub_mmp_delay && 4582 (i >= VDEV_UBERBLOCK_COUNT(&vd) - MMP_BLOCKS_PER_LABEL)) 4583 continue; 4584 4585 print_label_header(label, label_num); 4586 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 4587 " Uberblock[%d]\n", i); 4588 dump_uberblock(ub, header, ""); 4589 print_label_numbers(" labels = ", rec); 4590 } 4591 } 4592 4593 static char curpath[PATH_MAX]; 4594 4595 /* 4596 * Iterate through the path components, recursively passing 4597 * current one's obj and remaining path until we find the obj 4598 * for the last one. 4599 */ 4600 static int 4601 dump_path_impl(objset_t *os, uint64_t obj, char *name, uint64_t *retobj) 4602 { 4603 int err; 4604 boolean_t header = B_TRUE; 4605 uint64_t child_obj; 4606 char *s; 4607 dmu_buf_t *db; 4608 dmu_object_info_t doi; 4609 4610 if ((s = strchr(name, '/')) != NULL) 4611 *s = '\0'; 4612 err = zap_lookup(os, obj, name, 8, 1, &child_obj); 4613 4614 (void) strlcat(curpath, name, sizeof (curpath)); 4615 4616 if (err != 0) { 4617 (void) fprintf(stderr, "failed to lookup %s: %s\n", 4618 curpath, strerror(err)); 4619 return (err); 4620 } 4621 4622 child_obj = ZFS_DIRENT_OBJ(child_obj); 4623 err = sa_buf_hold(os, child_obj, FTAG, &db); 4624 if (err != 0) { 4625 (void) fprintf(stderr, 4626 "failed to get SA dbuf for obj %llu: %s\n", 4627 (u_longlong_t)child_obj, strerror(err)); 4628 return (EINVAL); 4629 } 4630 dmu_object_info_from_db(db, &doi); 4631 sa_buf_rele(db, FTAG); 4632 4633 if (doi.doi_bonus_type != DMU_OT_SA && 4634 doi.doi_bonus_type != DMU_OT_ZNODE) { 4635 (void) fprintf(stderr, "invalid bonus type %d for obj %llu\n", 4636 doi.doi_bonus_type, (u_longlong_t)child_obj); 4637 return (EINVAL); 4638 } 4639 4640 if (dump_opt['v'] > 6) { 4641 (void) printf("obj=%llu %s type=%d bonustype=%d\n", 4642 (u_longlong_t)child_obj, curpath, doi.doi_type, 4643 doi.doi_bonus_type); 4644 } 4645 4646 (void) strlcat(curpath, "/", sizeof (curpath)); 4647 4648 switch (doi.doi_type) { 4649 case DMU_OT_DIRECTORY_CONTENTS: 4650 if (s != NULL && *(s + 1) != '\0') 4651 return (dump_path_impl(os, child_obj, s + 1, retobj)); 4652 zfs_fallthrough; 4653 case DMU_OT_PLAIN_FILE_CONTENTS: 4654 if (retobj != NULL) { 4655 *retobj = child_obj; 4656 } else { 4657 dump_object(os, child_obj, dump_opt['v'], &header, 4658 NULL, 0); 4659 } 4660 return (0); 4661 default: 4662 (void) fprintf(stderr, "object %llu has non-file/directory " 4663 "type %d\n", (u_longlong_t)obj, doi.doi_type); 4664 break; 4665 } 4666 4667 return (EINVAL); 4668 } 4669 4670 /* 4671 * Dump the blocks for the object specified by path inside the dataset. 4672 */ 4673 static int 4674 dump_path(char *ds, char *path, uint64_t *retobj) 4675 { 4676 int err; 4677 objset_t *os; 4678 uint64_t root_obj; 4679 4680 err = open_objset(ds, FTAG, &os); 4681 if (err != 0) 4682 return (err); 4683 4684 err = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1, &root_obj); 4685 if (err != 0) { 4686 (void) fprintf(stderr, "can't lookup root znode: %s\n", 4687 strerror(err)); 4688 close_objset(os, FTAG); 4689 return (EINVAL); 4690 } 4691 4692 (void) snprintf(curpath, sizeof (curpath), "dataset=%s path=/", ds); 4693 4694 err = dump_path_impl(os, root_obj, path, retobj); 4695 4696 close_objset(os, FTAG); 4697 return (err); 4698 } 4699 4700 static int 4701 zdb_copy_object(objset_t *os, uint64_t srcobj, char *destfile) 4702 { 4703 int err = 0; 4704 uint64_t size, readsize, oursize, offset; 4705 ssize_t writesize; 4706 sa_handle_t *hdl; 4707 4708 (void) printf("Copying object %" PRIu64 " to file %s\n", srcobj, 4709 destfile); 4710 4711 VERIFY3P(os, ==, sa_os); 4712 if ((err = sa_handle_get(os, srcobj, NULL, SA_HDL_PRIVATE, &hdl))) { 4713 (void) printf("Failed to get handle for SA znode\n"); 4714 return (err); 4715 } 4716 if ((err = sa_lookup(hdl, sa_attr_table[ZPL_SIZE], &size, 8))) { 4717 (void) sa_handle_destroy(hdl); 4718 return (err); 4719 } 4720 (void) sa_handle_destroy(hdl); 4721 4722 (void) printf("Object %" PRIu64 " is %" PRIu64 " bytes\n", srcobj, 4723 size); 4724 if (size == 0) { 4725 return (EINVAL); 4726 } 4727 4728 int fd = open(destfile, O_WRONLY | O_CREAT | O_TRUNC, 0644); 4729 /* 4730 * We cap the size at 1 mebibyte here to prevent 4731 * allocation failures and nigh-infinite printing if the 4732 * object is extremely large. 4733 */ 4734 oursize = MIN(size, 1 << 20); 4735 offset = 0; 4736 char *buf = kmem_alloc(oursize, KM_NOSLEEP); 4737 if (buf == NULL) { 4738 return (ENOMEM); 4739 } 4740 4741 while (offset < size) { 4742 readsize = MIN(size - offset, 1 << 20); 4743 err = dmu_read(os, srcobj, offset, readsize, buf, 0); 4744 if (err != 0) { 4745 (void) printf("got error %u from dmu_read\n", err); 4746 kmem_free(buf, oursize); 4747 return (err); 4748 } 4749 if (dump_opt['v'] > 3) { 4750 (void) printf("Read offset=%" PRIu64 " size=%" PRIu64 4751 " error=%d\n", offset, readsize, err); 4752 } 4753 4754 writesize = write(fd, buf, readsize); 4755 if (writesize < 0) { 4756 err = errno; 4757 break; 4758 } else if (writesize != readsize) { 4759 /* Incomplete write */ 4760 (void) fprintf(stderr, "Short write, only wrote %llu of" 4761 " %" PRIu64 " bytes, exiting...\n", 4762 (u_longlong_t)writesize, readsize); 4763 break; 4764 } 4765 4766 offset += readsize; 4767 } 4768 4769 (void) close(fd); 4770 4771 if (buf != NULL) 4772 kmem_free(buf, oursize); 4773 4774 return (err); 4775 } 4776 4777 static boolean_t 4778 label_cksum_valid(vdev_label_t *label, uint64_t offset) 4779 { 4780 zio_checksum_info_t *ci = &zio_checksum_table[ZIO_CHECKSUM_LABEL]; 4781 zio_cksum_t expected_cksum; 4782 zio_cksum_t actual_cksum; 4783 zio_cksum_t verifier; 4784 zio_eck_t *eck; 4785 int byteswap; 4786 4787 void *data = (char *)label + offsetof(vdev_label_t, vl_vdev_phys); 4788 eck = (zio_eck_t *)((char *)(data) + VDEV_PHYS_SIZE) - 1; 4789 4790 offset += offsetof(vdev_label_t, vl_vdev_phys); 4791 ZIO_SET_CHECKSUM(&verifier, offset, 0, 0, 0); 4792 4793 byteswap = (eck->zec_magic == BSWAP_64(ZEC_MAGIC)); 4794 if (byteswap) 4795 byteswap_uint64_array(&verifier, sizeof (zio_cksum_t)); 4796 4797 expected_cksum = eck->zec_cksum; 4798 eck->zec_cksum = verifier; 4799 4800 abd_t *abd = abd_get_from_buf(data, VDEV_PHYS_SIZE); 4801 ci->ci_func[byteswap](abd, VDEV_PHYS_SIZE, NULL, &actual_cksum); 4802 abd_free(abd); 4803 4804 if (byteswap) 4805 byteswap_uint64_array(&expected_cksum, sizeof (zio_cksum_t)); 4806 4807 if (ZIO_CHECKSUM_EQUAL(actual_cksum, expected_cksum)) 4808 return (B_TRUE); 4809 4810 return (B_FALSE); 4811 } 4812 4813 static int 4814 dump_label(const char *dev) 4815 { 4816 char path[MAXPATHLEN]; 4817 zdb_label_t labels[VDEV_LABELS] = {{{{0}}}}; 4818 uint64_t psize, ashift, l2cache; 4819 struct stat64 statbuf; 4820 boolean_t config_found = B_FALSE; 4821 boolean_t error = B_FALSE; 4822 boolean_t read_l2arc_header = B_FALSE; 4823 avl_tree_t config_tree; 4824 avl_tree_t uberblock_tree; 4825 void *node, *cookie; 4826 int fd; 4827 4828 /* 4829 * Check if we were given absolute path and use it as is. 4830 * Otherwise if the provided vdev name doesn't point to a file, 4831 * try prepending expected disk paths and partition numbers. 4832 */ 4833 (void) strlcpy(path, dev, sizeof (path)); 4834 if (dev[0] != '/' && stat64(path, &statbuf) != 0) { 4835 int error; 4836 4837 error = zfs_resolve_shortname(dev, path, MAXPATHLEN); 4838 if (error == 0 && zfs_dev_is_whole_disk(path)) { 4839 if (zfs_append_partition(path, MAXPATHLEN) == -1) 4840 error = ENOENT; 4841 } 4842 4843 if (error || (stat64(path, &statbuf) != 0)) { 4844 (void) printf("failed to find device %s, try " 4845 "specifying absolute path instead\n", dev); 4846 return (1); 4847 } 4848 } 4849 4850 if ((fd = open64(path, O_RDONLY)) < 0) { 4851 (void) printf("cannot open '%s': %s\n", path, strerror(errno)); 4852 exit(1); 4853 } 4854 4855 if (fstat64_blk(fd, &statbuf) != 0) { 4856 (void) printf("failed to stat '%s': %s\n", path, 4857 strerror(errno)); 4858 (void) close(fd); 4859 exit(1); 4860 } 4861 4862 if (S_ISBLK(statbuf.st_mode) && zfs_dev_flush(fd) != 0) 4863 (void) printf("failed to invalidate cache '%s' : %s\n", path, 4864 strerror(errno)); 4865 4866 avl_create(&config_tree, cksum_record_compare, 4867 sizeof (cksum_record_t), offsetof(cksum_record_t, link)); 4868 avl_create(&uberblock_tree, cksum_record_compare, 4869 sizeof (cksum_record_t), offsetof(cksum_record_t, link)); 4870 4871 psize = statbuf.st_size; 4872 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 4873 ashift = SPA_MINBLOCKSHIFT; 4874 4875 /* 4876 * 1. Read the label from disk 4877 * 2. Verify label cksum 4878 * 3. Unpack the configuration and insert in config tree. 4879 * 4. Traverse all uberblocks and insert in uberblock tree. 4880 */ 4881 for (int l = 0; l < VDEV_LABELS; l++) { 4882 zdb_label_t *label = &labels[l]; 4883 char *buf = label->label.vl_vdev_phys.vp_nvlist; 4884 size_t buflen = sizeof (label->label.vl_vdev_phys.vp_nvlist); 4885 nvlist_t *config; 4886 cksum_record_t *rec; 4887 zio_cksum_t cksum; 4888 vdev_t vd; 4889 4890 label->label_offset = vdev_label_offset(psize, l, 0); 4891 4892 if (pread64(fd, &label->label, sizeof (label->label), 4893 label->label_offset) != sizeof (label->label)) { 4894 if (!dump_opt['q']) 4895 (void) printf("failed to read label %d\n", l); 4896 label->read_failed = B_TRUE; 4897 error = B_TRUE; 4898 continue; 4899 } 4900 4901 label->read_failed = B_FALSE; 4902 label->cksum_valid = label_cksum_valid(&label->label, 4903 label->label_offset); 4904 4905 if (nvlist_unpack(buf, buflen, &config, 0) == 0) { 4906 nvlist_t *vdev_tree = NULL; 4907 size_t size; 4908 4909 if ((nvlist_lookup_nvlist(config, 4910 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 4911 (nvlist_lookup_uint64(vdev_tree, 4912 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 4913 ashift = SPA_MINBLOCKSHIFT; 4914 4915 if (nvlist_size(config, &size, NV_ENCODE_XDR) != 0) 4916 size = buflen; 4917 4918 /* If the device is a cache device clear the header. */ 4919 if (!read_l2arc_header) { 4920 if (nvlist_lookup_uint64(config, 4921 ZPOOL_CONFIG_POOL_STATE, &l2cache) == 0 && 4922 l2cache == POOL_STATE_L2CACHE) { 4923 read_l2arc_header = B_TRUE; 4924 } 4925 } 4926 4927 fletcher_4_native_varsize(buf, size, &cksum); 4928 rec = cksum_record_insert(&config_tree, &cksum, l); 4929 4930 label->config = rec; 4931 label->config_nv = config; 4932 config_found = B_TRUE; 4933 } else { 4934 error = B_TRUE; 4935 } 4936 4937 vd.vdev_ashift = ashift; 4938 vd.vdev_top = &vd; 4939 4940 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(&vd); i++) { 4941 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(&vd, i); 4942 uberblock_t *ub = (void *)((char *)label + uoff); 4943 4944 if (uberblock_verify(ub)) 4945 continue; 4946 4947 fletcher_4_native_varsize(ub, sizeof (*ub), &cksum); 4948 rec = cksum_record_insert(&uberblock_tree, &cksum, l); 4949 4950 label->uberblocks[i] = rec; 4951 } 4952 } 4953 4954 /* 4955 * Dump the label and uberblocks. 4956 */ 4957 for (int l = 0; l < VDEV_LABELS; l++) { 4958 zdb_label_t *label = &labels[l]; 4959 size_t buflen = sizeof (label->label.vl_vdev_phys.vp_nvlist); 4960 4961 if (label->read_failed == B_TRUE) 4962 continue; 4963 4964 if (label->config_nv) { 4965 dump_config_from_label(label, buflen, l); 4966 } else { 4967 if (!dump_opt['q']) 4968 (void) printf("failed to unpack label %d\n", l); 4969 } 4970 4971 if (dump_opt['u']) 4972 dump_label_uberblocks(label, ashift, l); 4973 4974 nvlist_free(label->config_nv); 4975 } 4976 4977 /* 4978 * Dump the L2ARC header, if existent. 4979 */ 4980 if (read_l2arc_header) 4981 error |= dump_l2arc_header(fd); 4982 4983 cookie = NULL; 4984 while ((node = avl_destroy_nodes(&config_tree, &cookie)) != NULL) 4985 umem_free(node, sizeof (cksum_record_t)); 4986 4987 cookie = NULL; 4988 while ((node = avl_destroy_nodes(&uberblock_tree, &cookie)) != NULL) 4989 umem_free(node, sizeof (cksum_record_t)); 4990 4991 avl_destroy(&config_tree); 4992 avl_destroy(&uberblock_tree); 4993 4994 (void) close(fd); 4995 4996 return (config_found == B_FALSE ? 2 : 4997 (error == B_TRUE ? 1 : 0)); 4998 } 4999 5000 static uint64_t dataset_feature_count[SPA_FEATURES]; 5001 static uint64_t global_feature_count[SPA_FEATURES]; 5002 static uint64_t remap_deadlist_count = 0; 5003 5004 static int 5005 dump_one_objset(const char *dsname, void *arg) 5006 { 5007 (void) arg; 5008 int error; 5009 objset_t *os; 5010 spa_feature_t f; 5011 5012 error = open_objset(dsname, FTAG, &os); 5013 if (error != 0) 5014 return (0); 5015 5016 for (f = 0; f < SPA_FEATURES; f++) { 5017 if (!dsl_dataset_feature_is_active(dmu_objset_ds(os), f)) 5018 continue; 5019 ASSERT(spa_feature_table[f].fi_flags & 5020 ZFEATURE_FLAG_PER_DATASET); 5021 dataset_feature_count[f]++; 5022 } 5023 5024 if (dsl_dataset_remap_deadlist_exists(dmu_objset_ds(os))) { 5025 remap_deadlist_count++; 5026 } 5027 5028 for (dsl_bookmark_node_t *dbn = 5029 avl_first(&dmu_objset_ds(os)->ds_bookmarks); dbn != NULL; 5030 dbn = AVL_NEXT(&dmu_objset_ds(os)->ds_bookmarks, dbn)) { 5031 mos_obj_refd(dbn->dbn_phys.zbm_redaction_obj); 5032 if (dbn->dbn_phys.zbm_redaction_obj != 0) 5033 global_feature_count[SPA_FEATURE_REDACTION_BOOKMARKS]++; 5034 if (dbn->dbn_phys.zbm_flags & ZBM_FLAG_HAS_FBN) 5035 global_feature_count[SPA_FEATURE_BOOKMARK_WRITTEN]++; 5036 } 5037 5038 if (dsl_deadlist_is_open(&dmu_objset_ds(os)->ds_dir->dd_livelist) && 5039 !dmu_objset_is_snapshot(os)) { 5040 global_feature_count[SPA_FEATURE_LIVELIST]++; 5041 } 5042 5043 dump_objset(os); 5044 close_objset(os, FTAG); 5045 fuid_table_destroy(); 5046 return (0); 5047 } 5048 5049 /* 5050 * Block statistics. 5051 */ 5052 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2) 5053 typedef struct zdb_blkstats { 5054 uint64_t zb_asize; 5055 uint64_t zb_lsize; 5056 uint64_t zb_psize; 5057 uint64_t zb_count; 5058 uint64_t zb_gangs; 5059 uint64_t zb_ditto_samevdev; 5060 uint64_t zb_ditto_same_ms; 5061 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 5062 } zdb_blkstats_t; 5063 5064 /* 5065 * Extended object types to report deferred frees and dedup auto-ditto blocks. 5066 */ 5067 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 5068 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 5069 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 5070 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 5071 5072 static const char *zdb_ot_extname[] = { 5073 "deferred free", 5074 "dedup ditto", 5075 "other", 5076 "Total", 5077 }; 5078 5079 #define ZB_TOTAL DN_MAX_LEVELS 5080 #define SPA_MAX_FOR_16M (SPA_MAXBLOCKSHIFT+1) 5081 5082 typedef struct zdb_cb { 5083 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 5084 uint64_t zcb_removing_size; 5085 uint64_t zcb_checkpoint_size; 5086 uint64_t zcb_dedup_asize; 5087 uint64_t zcb_dedup_blocks; 5088 uint64_t zcb_psize_count[SPA_MAX_FOR_16M]; 5089 uint64_t zcb_lsize_count[SPA_MAX_FOR_16M]; 5090 uint64_t zcb_asize_count[SPA_MAX_FOR_16M]; 5091 uint64_t zcb_psize_len[SPA_MAX_FOR_16M]; 5092 uint64_t zcb_lsize_len[SPA_MAX_FOR_16M]; 5093 uint64_t zcb_asize_len[SPA_MAX_FOR_16M]; 5094 uint64_t zcb_psize_total; 5095 uint64_t zcb_lsize_total; 5096 uint64_t zcb_asize_total; 5097 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES]; 5098 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES] 5099 [BPE_PAYLOAD_SIZE + 1]; 5100 uint64_t zcb_start; 5101 hrtime_t zcb_lastprint; 5102 uint64_t zcb_totalasize; 5103 uint64_t zcb_errors[256]; 5104 int zcb_readfails; 5105 int zcb_haderrors; 5106 spa_t *zcb_spa; 5107 uint32_t **zcb_vd_obsolete_counts; 5108 } zdb_cb_t; 5109 5110 /* test if two DVA offsets from same vdev are within the same metaslab */ 5111 static boolean_t 5112 same_metaslab(spa_t *spa, uint64_t vdev, uint64_t off1, uint64_t off2) 5113 { 5114 vdev_t *vd = vdev_lookup_top(spa, vdev); 5115 uint64_t ms_shift = vd->vdev_ms_shift; 5116 5117 return ((off1 >> ms_shift) == (off2 >> ms_shift)); 5118 } 5119 5120 /* 5121 * Used to simplify reporting of the histogram data. 5122 */ 5123 typedef struct one_histo { 5124 char *name; 5125 uint64_t *count; 5126 uint64_t *len; 5127 uint64_t cumulative; 5128 } one_histo_t; 5129 5130 /* 5131 * The number of separate histograms processed for psize, lsize and asize. 5132 */ 5133 #define NUM_HISTO 3 5134 5135 /* 5136 * This routine will create a fixed column size output of three different 5137 * histograms showing by blocksize of 512 - 2^ SPA_MAX_FOR_16M 5138 * the count, length and cumulative length of the psize, lsize and 5139 * asize blocks. 5140 * 5141 * All three types of blocks are listed on a single line 5142 * 5143 * By default the table is printed in nicenumber format (e.g. 123K) but 5144 * if the '-P' parameter is specified then the full raw number (parseable) 5145 * is printed out. 5146 */ 5147 static void 5148 dump_size_histograms(zdb_cb_t *zcb) 5149 { 5150 /* 5151 * A temporary buffer that allows us to convert a number into 5152 * a string using zdb_nicenumber to allow either raw or human 5153 * readable numbers to be output. 5154 */ 5155 char numbuf[32]; 5156 5157 /* 5158 * Define titles which are used in the headers of the tables 5159 * printed by this routine. 5160 */ 5161 const char blocksize_title1[] = "block"; 5162 const char blocksize_title2[] = "size"; 5163 const char count_title[] = "Count"; 5164 const char length_title[] = "Size"; 5165 const char cumulative_title[] = "Cum."; 5166 5167 /* 5168 * Setup the histogram arrays (psize, lsize, and asize). 5169 */ 5170 one_histo_t parm_histo[NUM_HISTO]; 5171 5172 parm_histo[0].name = "psize"; 5173 parm_histo[0].count = zcb->zcb_psize_count; 5174 parm_histo[0].len = zcb->zcb_psize_len; 5175 parm_histo[0].cumulative = 0; 5176 5177 parm_histo[1].name = "lsize"; 5178 parm_histo[1].count = zcb->zcb_lsize_count; 5179 parm_histo[1].len = zcb->zcb_lsize_len; 5180 parm_histo[1].cumulative = 0; 5181 5182 parm_histo[2].name = "asize"; 5183 parm_histo[2].count = zcb->zcb_asize_count; 5184 parm_histo[2].len = zcb->zcb_asize_len; 5185 parm_histo[2].cumulative = 0; 5186 5187 5188 (void) printf("\nBlock Size Histogram\n"); 5189 /* 5190 * Print the first line titles 5191 */ 5192 if (dump_opt['P']) 5193 (void) printf("\n%s\t", blocksize_title1); 5194 else 5195 (void) printf("\n%7s ", blocksize_title1); 5196 5197 for (int j = 0; j < NUM_HISTO; j++) { 5198 if (dump_opt['P']) { 5199 if (j < NUM_HISTO - 1) { 5200 (void) printf("%s\t\t\t", parm_histo[j].name); 5201 } else { 5202 /* Don't print trailing spaces */ 5203 (void) printf(" %s", parm_histo[j].name); 5204 } 5205 } else { 5206 if (j < NUM_HISTO - 1) { 5207 /* Left aligned strings in the output */ 5208 (void) printf("%-7s ", 5209 parm_histo[j].name); 5210 } else { 5211 /* Don't print trailing spaces */ 5212 (void) printf("%s", parm_histo[j].name); 5213 } 5214 } 5215 } 5216 (void) printf("\n"); 5217 5218 /* 5219 * Print the second line titles 5220 */ 5221 if (dump_opt['P']) { 5222 (void) printf("%s\t", blocksize_title2); 5223 } else { 5224 (void) printf("%7s ", blocksize_title2); 5225 } 5226 5227 for (int i = 0; i < NUM_HISTO; i++) { 5228 if (dump_opt['P']) { 5229 (void) printf("%s\t%s\t%s\t", 5230 count_title, length_title, cumulative_title); 5231 } else { 5232 (void) printf("%7s%7s%7s", 5233 count_title, length_title, cumulative_title); 5234 } 5235 } 5236 (void) printf("\n"); 5237 5238 /* 5239 * Print the rows 5240 */ 5241 for (int i = SPA_MINBLOCKSHIFT; i < SPA_MAX_FOR_16M; i++) { 5242 5243 /* 5244 * Print the first column showing the blocksize 5245 */ 5246 zdb_nicenum((1ULL << i), numbuf, sizeof (numbuf)); 5247 5248 if (dump_opt['P']) { 5249 printf("%s", numbuf); 5250 } else { 5251 printf("%7s:", numbuf); 5252 } 5253 5254 /* 5255 * Print the remaining set of 3 columns per size: 5256 * for psize, lsize and asize 5257 */ 5258 for (int j = 0; j < NUM_HISTO; j++) { 5259 parm_histo[j].cumulative += parm_histo[j].len[i]; 5260 5261 zdb_nicenum(parm_histo[j].count[i], 5262 numbuf, sizeof (numbuf)); 5263 if (dump_opt['P']) 5264 (void) printf("\t%s", numbuf); 5265 else 5266 (void) printf("%7s", numbuf); 5267 5268 zdb_nicenum(parm_histo[j].len[i], 5269 numbuf, sizeof (numbuf)); 5270 if (dump_opt['P']) 5271 (void) printf("\t%s", numbuf); 5272 else 5273 (void) printf("%7s", numbuf); 5274 5275 zdb_nicenum(parm_histo[j].cumulative, 5276 numbuf, sizeof (numbuf)); 5277 if (dump_opt['P']) 5278 (void) printf("\t%s", numbuf); 5279 else 5280 (void) printf("%7s", numbuf); 5281 } 5282 (void) printf("\n"); 5283 } 5284 } 5285 5286 static void 5287 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 5288 dmu_object_type_t type) 5289 { 5290 uint64_t refcnt = 0; 5291 int i; 5292 5293 ASSERT(type < ZDB_OT_TOTAL); 5294 5295 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 5296 return; 5297 5298 spa_config_enter(zcb->zcb_spa, SCL_CONFIG, FTAG, RW_READER); 5299 5300 for (i = 0; i < 4; i++) { 5301 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 5302 int t = (i & 1) ? type : ZDB_OT_TOTAL; 5303 int equal; 5304 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 5305 5306 zb->zb_asize += BP_GET_ASIZE(bp); 5307 zb->zb_lsize += BP_GET_LSIZE(bp); 5308 zb->zb_psize += BP_GET_PSIZE(bp); 5309 zb->zb_count++; 5310 5311 /* 5312 * The histogram is only big enough to record blocks up to 5313 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last, 5314 * "other", bucket. 5315 */ 5316 unsigned idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT; 5317 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1); 5318 zb->zb_psize_histogram[idx]++; 5319 5320 zb->zb_gangs += BP_COUNT_GANG(bp); 5321 5322 switch (BP_GET_NDVAS(bp)) { 5323 case 2: 5324 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 5325 DVA_GET_VDEV(&bp->blk_dva[1])) { 5326 zb->zb_ditto_samevdev++; 5327 5328 if (same_metaslab(zcb->zcb_spa, 5329 DVA_GET_VDEV(&bp->blk_dva[0]), 5330 DVA_GET_OFFSET(&bp->blk_dva[0]), 5331 DVA_GET_OFFSET(&bp->blk_dva[1]))) 5332 zb->zb_ditto_same_ms++; 5333 } 5334 break; 5335 case 3: 5336 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == 5337 DVA_GET_VDEV(&bp->blk_dva[1])) + 5338 (DVA_GET_VDEV(&bp->blk_dva[0]) == 5339 DVA_GET_VDEV(&bp->blk_dva[2])) + 5340 (DVA_GET_VDEV(&bp->blk_dva[1]) == 5341 DVA_GET_VDEV(&bp->blk_dva[2])); 5342 if (equal != 0) { 5343 zb->zb_ditto_samevdev++; 5344 5345 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 5346 DVA_GET_VDEV(&bp->blk_dva[1]) && 5347 same_metaslab(zcb->zcb_spa, 5348 DVA_GET_VDEV(&bp->blk_dva[0]), 5349 DVA_GET_OFFSET(&bp->blk_dva[0]), 5350 DVA_GET_OFFSET(&bp->blk_dva[1]))) 5351 zb->zb_ditto_same_ms++; 5352 else if (DVA_GET_VDEV(&bp->blk_dva[0]) == 5353 DVA_GET_VDEV(&bp->blk_dva[2]) && 5354 same_metaslab(zcb->zcb_spa, 5355 DVA_GET_VDEV(&bp->blk_dva[0]), 5356 DVA_GET_OFFSET(&bp->blk_dva[0]), 5357 DVA_GET_OFFSET(&bp->blk_dva[2]))) 5358 zb->zb_ditto_same_ms++; 5359 else if (DVA_GET_VDEV(&bp->blk_dva[1]) == 5360 DVA_GET_VDEV(&bp->blk_dva[2]) && 5361 same_metaslab(zcb->zcb_spa, 5362 DVA_GET_VDEV(&bp->blk_dva[1]), 5363 DVA_GET_OFFSET(&bp->blk_dva[1]), 5364 DVA_GET_OFFSET(&bp->blk_dva[2]))) 5365 zb->zb_ditto_same_ms++; 5366 } 5367 break; 5368 } 5369 } 5370 5371 spa_config_exit(zcb->zcb_spa, SCL_CONFIG, FTAG); 5372 5373 if (BP_IS_EMBEDDED(bp)) { 5374 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++; 5375 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)] 5376 [BPE_GET_PSIZE(bp)]++; 5377 return; 5378 } 5379 /* 5380 * The binning histogram bins by powers of two up to 5381 * SPA_MAXBLOCKSIZE rather than creating bins for 5382 * every possible blocksize found in the pool. 5383 */ 5384 int bin = highbit64(BP_GET_PSIZE(bp)) - 1; 5385 5386 zcb->zcb_psize_count[bin]++; 5387 zcb->zcb_psize_len[bin] += BP_GET_PSIZE(bp); 5388 zcb->zcb_psize_total += BP_GET_PSIZE(bp); 5389 5390 bin = highbit64(BP_GET_LSIZE(bp)) - 1; 5391 5392 zcb->zcb_lsize_count[bin]++; 5393 zcb->zcb_lsize_len[bin] += BP_GET_LSIZE(bp); 5394 zcb->zcb_lsize_total += BP_GET_LSIZE(bp); 5395 5396 bin = highbit64(BP_GET_ASIZE(bp)) - 1; 5397 5398 zcb->zcb_asize_count[bin]++; 5399 zcb->zcb_asize_len[bin] += BP_GET_ASIZE(bp); 5400 zcb->zcb_asize_total += BP_GET_ASIZE(bp); 5401 5402 if (dump_opt['L']) 5403 return; 5404 5405 if (BP_GET_DEDUP(bp)) { 5406 ddt_t *ddt; 5407 ddt_entry_t *dde; 5408 5409 ddt = ddt_select(zcb->zcb_spa, bp); 5410 ddt_enter(ddt); 5411 dde = ddt_lookup(ddt, bp, B_FALSE); 5412 5413 if (dde == NULL) { 5414 refcnt = 0; 5415 } else { 5416 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 5417 ddt_phys_decref(ddp); 5418 refcnt = ddp->ddp_refcnt; 5419 if (ddt_phys_total_refcnt(dde) == 0) 5420 ddt_remove(ddt, dde); 5421 } 5422 ddt_exit(ddt); 5423 } 5424 5425 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 5426 refcnt ? 0 : spa_min_claim_txg(zcb->zcb_spa), 5427 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 5428 } 5429 5430 static void 5431 zdb_blkptr_done(zio_t *zio) 5432 { 5433 spa_t *spa = zio->io_spa; 5434 blkptr_t *bp = zio->io_bp; 5435 int ioerr = zio->io_error; 5436 zdb_cb_t *zcb = zio->io_private; 5437 zbookmark_phys_t *zb = &zio->io_bookmark; 5438 5439 mutex_enter(&spa->spa_scrub_lock); 5440 spa->spa_load_verify_bytes -= BP_GET_PSIZE(bp); 5441 cv_broadcast(&spa->spa_scrub_io_cv); 5442 5443 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 5444 char blkbuf[BP_SPRINTF_LEN]; 5445 5446 zcb->zcb_haderrors = 1; 5447 zcb->zcb_errors[ioerr]++; 5448 5449 if (dump_opt['b'] >= 2) 5450 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 5451 else 5452 blkbuf[0] = '\0'; 5453 5454 (void) printf("zdb_blkptr_cb: " 5455 "Got error %d reading " 5456 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 5457 ioerr, 5458 (u_longlong_t)zb->zb_objset, 5459 (u_longlong_t)zb->zb_object, 5460 (u_longlong_t)zb->zb_level, 5461 (u_longlong_t)zb->zb_blkid, 5462 blkbuf); 5463 } 5464 mutex_exit(&spa->spa_scrub_lock); 5465 5466 abd_free(zio->io_abd); 5467 } 5468 5469 static int 5470 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 5471 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 5472 { 5473 zdb_cb_t *zcb = arg; 5474 dmu_object_type_t type; 5475 boolean_t is_metadata; 5476 5477 if (zb->zb_level == ZB_DNODE_LEVEL) 5478 return (0); 5479 5480 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) { 5481 char blkbuf[BP_SPRINTF_LEN]; 5482 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 5483 (void) printf("objset %llu object %llu " 5484 "level %lld offset 0x%llx %s\n", 5485 (u_longlong_t)zb->zb_objset, 5486 (u_longlong_t)zb->zb_object, 5487 (longlong_t)zb->zb_level, 5488 (u_longlong_t)blkid2offset(dnp, bp, zb), 5489 blkbuf); 5490 } 5491 5492 if (BP_IS_HOLE(bp) || BP_IS_REDACTED(bp)) 5493 return (0); 5494 5495 type = BP_GET_TYPE(bp); 5496 5497 zdb_count_block(zcb, zilog, bp, 5498 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 5499 5500 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 5501 5502 if (!BP_IS_EMBEDDED(bp) && 5503 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) { 5504 size_t size = BP_GET_PSIZE(bp); 5505 abd_t *abd = abd_alloc(size, B_FALSE); 5506 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 5507 5508 /* If it's an intent log block, failure is expected. */ 5509 if (zb->zb_level == ZB_ZIL_LEVEL) 5510 flags |= ZIO_FLAG_SPECULATIVE; 5511 5512 mutex_enter(&spa->spa_scrub_lock); 5513 while (spa->spa_load_verify_bytes > max_inflight_bytes) 5514 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 5515 spa->spa_load_verify_bytes += size; 5516 mutex_exit(&spa->spa_scrub_lock); 5517 5518 zio_nowait(zio_read(NULL, spa, bp, abd, size, 5519 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 5520 } 5521 5522 zcb->zcb_readfails = 0; 5523 5524 /* only call gethrtime() every 100 blocks */ 5525 static int iters; 5526 if (++iters > 100) 5527 iters = 0; 5528 else 5529 return (0); 5530 5531 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) { 5532 uint64_t now = gethrtime(); 5533 char buf[10]; 5534 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 5535 uint64_t kb_per_sec = 5536 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 5537 uint64_t sec_remaining = 5538 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 5539 5540 /* make sure nicenum has enough space */ 5541 _Static_assert(sizeof (buf) >= NN_NUMBUF_SZ, "buf truncated"); 5542 5543 zfs_nicebytes(bytes, buf, sizeof (buf)); 5544 (void) fprintf(stderr, 5545 "\r%5s completed (%4"PRIu64"MB/s) " 5546 "estimated time remaining: " 5547 "%"PRIu64"hr %02"PRIu64"min %02"PRIu64"sec ", 5548 buf, kb_per_sec / 1024, 5549 sec_remaining / 60 / 60, 5550 sec_remaining / 60 % 60, 5551 sec_remaining % 60); 5552 5553 zcb->zcb_lastprint = now; 5554 } 5555 5556 return (0); 5557 } 5558 5559 static void 5560 zdb_leak(void *arg, uint64_t start, uint64_t size) 5561 { 5562 vdev_t *vd = arg; 5563 5564 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 5565 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 5566 } 5567 5568 static metaslab_ops_t zdb_metaslab_ops = { 5569 NULL /* alloc */ 5570 }; 5571 5572 static int 5573 load_unflushed_svr_segs_cb(spa_t *spa, space_map_entry_t *sme, 5574 uint64_t txg, void *arg) 5575 { 5576 spa_vdev_removal_t *svr = arg; 5577 5578 uint64_t offset = sme->sme_offset; 5579 uint64_t size = sme->sme_run; 5580 5581 /* skip vdevs we don't care about */ 5582 if (sme->sme_vdev != svr->svr_vdev_id) 5583 return (0); 5584 5585 vdev_t *vd = vdev_lookup_top(spa, sme->sme_vdev); 5586 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 5587 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE); 5588 5589 if (txg < metaslab_unflushed_txg(ms)) 5590 return (0); 5591 5592 if (sme->sme_type == SM_ALLOC) 5593 range_tree_add(svr->svr_allocd_segs, offset, size); 5594 else 5595 range_tree_remove(svr->svr_allocd_segs, offset, size); 5596 5597 return (0); 5598 } 5599 5600 static void 5601 claim_segment_impl_cb(uint64_t inner_offset, vdev_t *vd, uint64_t offset, 5602 uint64_t size, void *arg) 5603 { 5604 (void) inner_offset, (void) arg; 5605 5606 /* 5607 * This callback was called through a remap from 5608 * a device being removed. Therefore, the vdev that 5609 * this callback is applied to is a concrete 5610 * vdev. 5611 */ 5612 ASSERT(vdev_is_concrete(vd)); 5613 5614 VERIFY0(metaslab_claim_impl(vd, offset, size, 5615 spa_min_claim_txg(vd->vdev_spa))); 5616 } 5617 5618 static void 5619 claim_segment_cb(void *arg, uint64_t offset, uint64_t size) 5620 { 5621 vdev_t *vd = arg; 5622 5623 vdev_indirect_ops.vdev_op_remap(vd, offset, size, 5624 claim_segment_impl_cb, NULL); 5625 } 5626 5627 /* 5628 * After accounting for all allocated blocks that are directly referenced, 5629 * we might have missed a reference to a block from a partially complete 5630 * (and thus unused) indirect mapping object. We perform a secondary pass 5631 * through the metaslabs we have already mapped and claim the destination 5632 * blocks. 5633 */ 5634 static void 5635 zdb_claim_removing(spa_t *spa, zdb_cb_t *zcb) 5636 { 5637 if (dump_opt['L']) 5638 return; 5639 5640 if (spa->spa_vdev_removal == NULL) 5641 return; 5642 5643 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 5644 5645 spa_vdev_removal_t *svr = spa->spa_vdev_removal; 5646 vdev_t *vd = vdev_lookup_top(spa, svr->svr_vdev_id); 5647 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 5648 5649 ASSERT0(range_tree_space(svr->svr_allocd_segs)); 5650 5651 range_tree_t *allocs = range_tree_create(NULL, RANGE_SEG64, NULL, 0, 0); 5652 for (uint64_t msi = 0; msi < vd->vdev_ms_count; msi++) { 5653 metaslab_t *msp = vd->vdev_ms[msi]; 5654 5655 ASSERT0(range_tree_space(allocs)); 5656 if (msp->ms_sm != NULL) 5657 VERIFY0(space_map_load(msp->ms_sm, allocs, SM_ALLOC)); 5658 range_tree_vacate(allocs, range_tree_add, svr->svr_allocd_segs); 5659 } 5660 range_tree_destroy(allocs); 5661 5662 iterate_through_spacemap_logs(spa, load_unflushed_svr_segs_cb, svr); 5663 5664 /* 5665 * Clear everything past what has been synced, 5666 * because we have not allocated mappings for 5667 * it yet. 5668 */ 5669 range_tree_clear(svr->svr_allocd_segs, 5670 vdev_indirect_mapping_max_offset(vim), 5671 vd->vdev_asize - vdev_indirect_mapping_max_offset(vim)); 5672 5673 zcb->zcb_removing_size += range_tree_space(svr->svr_allocd_segs); 5674 range_tree_vacate(svr->svr_allocd_segs, claim_segment_cb, vd); 5675 5676 spa_config_exit(spa, SCL_CONFIG, FTAG); 5677 } 5678 5679 static int 5680 increment_indirect_mapping_cb(void *arg, const blkptr_t *bp, boolean_t bp_freed, 5681 dmu_tx_t *tx) 5682 { 5683 (void) tx; 5684 zdb_cb_t *zcb = arg; 5685 spa_t *spa = zcb->zcb_spa; 5686 vdev_t *vd; 5687 const dva_t *dva = &bp->blk_dva[0]; 5688 5689 ASSERT(!bp_freed); 5690 ASSERT(!dump_opt['L']); 5691 ASSERT3U(BP_GET_NDVAS(bp), ==, 1); 5692 5693 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER); 5694 vd = vdev_lookup_top(zcb->zcb_spa, DVA_GET_VDEV(dva)); 5695 ASSERT3P(vd, !=, NULL); 5696 spa_config_exit(spa, SCL_VDEV, FTAG); 5697 5698 ASSERT(vd->vdev_indirect_config.vic_mapping_object != 0); 5699 ASSERT3P(zcb->zcb_vd_obsolete_counts[vd->vdev_id], !=, NULL); 5700 5701 vdev_indirect_mapping_increment_obsolete_count( 5702 vd->vdev_indirect_mapping, 5703 DVA_GET_OFFSET(dva), DVA_GET_ASIZE(dva), 5704 zcb->zcb_vd_obsolete_counts[vd->vdev_id]); 5705 5706 return (0); 5707 } 5708 5709 static uint32_t * 5710 zdb_load_obsolete_counts(vdev_t *vd) 5711 { 5712 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 5713 spa_t *spa = vd->vdev_spa; 5714 spa_condensing_indirect_phys_t *scip = 5715 &spa->spa_condensing_indirect_phys; 5716 uint64_t obsolete_sm_object; 5717 uint32_t *counts; 5718 5719 VERIFY0(vdev_obsolete_sm_object(vd, &obsolete_sm_object)); 5720 EQUIV(obsolete_sm_object != 0, vd->vdev_obsolete_sm != NULL); 5721 counts = vdev_indirect_mapping_load_obsolete_counts(vim); 5722 if (vd->vdev_obsolete_sm != NULL) { 5723 vdev_indirect_mapping_load_obsolete_spacemap(vim, counts, 5724 vd->vdev_obsolete_sm); 5725 } 5726 if (scip->scip_vdev == vd->vdev_id && 5727 scip->scip_prev_obsolete_sm_object != 0) { 5728 space_map_t *prev_obsolete_sm = NULL; 5729 VERIFY0(space_map_open(&prev_obsolete_sm, spa->spa_meta_objset, 5730 scip->scip_prev_obsolete_sm_object, 0, vd->vdev_asize, 0)); 5731 vdev_indirect_mapping_load_obsolete_spacemap(vim, counts, 5732 prev_obsolete_sm); 5733 space_map_close(prev_obsolete_sm); 5734 } 5735 return (counts); 5736 } 5737 5738 static void 5739 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 5740 { 5741 ddt_bookmark_t ddb = {0}; 5742 ddt_entry_t dde; 5743 int error; 5744 int p; 5745 5746 ASSERT(!dump_opt['L']); 5747 5748 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 5749 blkptr_t blk; 5750 ddt_phys_t *ddp = dde.dde_phys; 5751 5752 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 5753 return; 5754 5755 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 5756 5757 for (p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 5758 if (ddp->ddp_phys_birth == 0) 5759 continue; 5760 ddt_bp_create(ddb.ddb_checksum, 5761 &dde.dde_key, ddp, &blk); 5762 if (p == DDT_PHYS_DITTO) { 5763 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 5764 } else { 5765 zcb->zcb_dedup_asize += 5766 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 5767 zcb->zcb_dedup_blocks++; 5768 } 5769 } 5770 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 5771 ddt_enter(ddt); 5772 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 5773 ddt_exit(ddt); 5774 } 5775 5776 ASSERT(error == ENOENT); 5777 } 5778 5779 typedef struct checkpoint_sm_exclude_entry_arg { 5780 vdev_t *cseea_vd; 5781 uint64_t cseea_checkpoint_size; 5782 } checkpoint_sm_exclude_entry_arg_t; 5783 5784 static int 5785 checkpoint_sm_exclude_entry_cb(space_map_entry_t *sme, void *arg) 5786 { 5787 checkpoint_sm_exclude_entry_arg_t *cseea = arg; 5788 vdev_t *vd = cseea->cseea_vd; 5789 metaslab_t *ms = vd->vdev_ms[sme->sme_offset >> vd->vdev_ms_shift]; 5790 uint64_t end = sme->sme_offset + sme->sme_run; 5791 5792 ASSERT(sme->sme_type == SM_FREE); 5793 5794 /* 5795 * Since the vdev_checkpoint_sm exists in the vdev level 5796 * and the ms_sm space maps exist in the metaslab level, 5797 * an entry in the checkpoint space map could theoretically 5798 * cross the boundaries of the metaslab that it belongs. 5799 * 5800 * In reality, because of the way that we populate and 5801 * manipulate the checkpoint's space maps currently, 5802 * there shouldn't be any entries that cross metaslabs. 5803 * Hence the assertion below. 5804 * 5805 * That said, there is no fundamental requirement that 5806 * the checkpoint's space map entries should not cross 5807 * metaslab boundaries. So if needed we could add code 5808 * that handles metaslab-crossing segments in the future. 5809 */ 5810 VERIFY3U(sme->sme_offset, >=, ms->ms_start); 5811 VERIFY3U(end, <=, ms->ms_start + ms->ms_size); 5812 5813 /* 5814 * By removing the entry from the allocated segments we 5815 * also verify that the entry is there to begin with. 5816 */ 5817 mutex_enter(&ms->ms_lock); 5818 range_tree_remove(ms->ms_allocatable, sme->sme_offset, sme->sme_run); 5819 mutex_exit(&ms->ms_lock); 5820 5821 cseea->cseea_checkpoint_size += sme->sme_run; 5822 return (0); 5823 } 5824 5825 static void 5826 zdb_leak_init_vdev_exclude_checkpoint(vdev_t *vd, zdb_cb_t *zcb) 5827 { 5828 spa_t *spa = vd->vdev_spa; 5829 space_map_t *checkpoint_sm = NULL; 5830 uint64_t checkpoint_sm_obj; 5831 5832 /* 5833 * If there is no vdev_top_zap, we are in a pool whose 5834 * version predates the pool checkpoint feature. 5835 */ 5836 if (vd->vdev_top_zap == 0) 5837 return; 5838 5839 /* 5840 * If there is no reference of the vdev_checkpoint_sm in 5841 * the vdev_top_zap, then one of the following scenarios 5842 * is true: 5843 * 5844 * 1] There is no checkpoint 5845 * 2] There is a checkpoint, but no checkpointed blocks 5846 * have been freed yet 5847 * 3] The current vdev is indirect 5848 * 5849 * In these cases we return immediately. 5850 */ 5851 if (zap_contains(spa_meta_objset(spa), vd->vdev_top_zap, 5852 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0) 5853 return; 5854 5855 VERIFY0(zap_lookup(spa_meta_objset(spa), vd->vdev_top_zap, 5856 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, sizeof (uint64_t), 1, 5857 &checkpoint_sm_obj)); 5858 5859 checkpoint_sm_exclude_entry_arg_t cseea; 5860 cseea.cseea_vd = vd; 5861 cseea.cseea_checkpoint_size = 0; 5862 5863 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(spa), 5864 checkpoint_sm_obj, 0, vd->vdev_asize, vd->vdev_ashift)); 5865 5866 VERIFY0(space_map_iterate(checkpoint_sm, 5867 space_map_length(checkpoint_sm), 5868 checkpoint_sm_exclude_entry_cb, &cseea)); 5869 space_map_close(checkpoint_sm); 5870 5871 zcb->zcb_checkpoint_size += cseea.cseea_checkpoint_size; 5872 } 5873 5874 static void 5875 zdb_leak_init_exclude_checkpoint(spa_t *spa, zdb_cb_t *zcb) 5876 { 5877 ASSERT(!dump_opt['L']); 5878 5879 vdev_t *rvd = spa->spa_root_vdev; 5880 for (uint64_t c = 0; c < rvd->vdev_children; c++) { 5881 ASSERT3U(c, ==, rvd->vdev_child[c]->vdev_id); 5882 zdb_leak_init_vdev_exclude_checkpoint(rvd->vdev_child[c], zcb); 5883 } 5884 } 5885 5886 static int 5887 count_unflushed_space_cb(spa_t *spa, space_map_entry_t *sme, 5888 uint64_t txg, void *arg) 5889 { 5890 int64_t *ualloc_space = arg; 5891 5892 uint64_t offset = sme->sme_offset; 5893 uint64_t vdev_id = sme->sme_vdev; 5894 5895 vdev_t *vd = vdev_lookup_top(spa, vdev_id); 5896 if (!vdev_is_concrete(vd)) 5897 return (0); 5898 5899 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 5900 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE); 5901 5902 if (txg < metaslab_unflushed_txg(ms)) 5903 return (0); 5904 5905 if (sme->sme_type == SM_ALLOC) 5906 *ualloc_space += sme->sme_run; 5907 else 5908 *ualloc_space -= sme->sme_run; 5909 5910 return (0); 5911 } 5912 5913 static int64_t 5914 get_unflushed_alloc_space(spa_t *spa) 5915 { 5916 if (dump_opt['L']) 5917 return (0); 5918 5919 int64_t ualloc_space = 0; 5920 iterate_through_spacemap_logs(spa, count_unflushed_space_cb, 5921 &ualloc_space); 5922 return (ualloc_space); 5923 } 5924 5925 static int 5926 load_unflushed_cb(spa_t *spa, space_map_entry_t *sme, uint64_t txg, void *arg) 5927 { 5928 maptype_t *uic_maptype = arg; 5929 5930 uint64_t offset = sme->sme_offset; 5931 uint64_t size = sme->sme_run; 5932 uint64_t vdev_id = sme->sme_vdev; 5933 5934 vdev_t *vd = vdev_lookup_top(spa, vdev_id); 5935 5936 /* skip indirect vdevs */ 5937 if (!vdev_is_concrete(vd)) 5938 return (0); 5939 5940 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 5941 5942 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE); 5943 ASSERT(*uic_maptype == SM_ALLOC || *uic_maptype == SM_FREE); 5944 5945 if (txg < metaslab_unflushed_txg(ms)) 5946 return (0); 5947 5948 if (*uic_maptype == sme->sme_type) 5949 range_tree_add(ms->ms_allocatable, offset, size); 5950 else 5951 range_tree_remove(ms->ms_allocatable, offset, size); 5952 5953 return (0); 5954 } 5955 5956 static void 5957 load_unflushed_to_ms_allocatables(spa_t *spa, maptype_t maptype) 5958 { 5959 iterate_through_spacemap_logs(spa, load_unflushed_cb, &maptype); 5960 } 5961 5962 static void 5963 load_concrete_ms_allocatable_trees(spa_t *spa, maptype_t maptype) 5964 { 5965 vdev_t *rvd = spa->spa_root_vdev; 5966 for (uint64_t i = 0; i < rvd->vdev_children; i++) { 5967 vdev_t *vd = rvd->vdev_child[i]; 5968 5969 ASSERT3U(i, ==, vd->vdev_id); 5970 5971 if (vd->vdev_ops == &vdev_indirect_ops) 5972 continue; 5973 5974 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 5975 metaslab_t *msp = vd->vdev_ms[m]; 5976 5977 (void) fprintf(stderr, 5978 "\rloading concrete vdev %llu, " 5979 "metaslab %llu of %llu ...", 5980 (longlong_t)vd->vdev_id, 5981 (longlong_t)msp->ms_id, 5982 (longlong_t)vd->vdev_ms_count); 5983 5984 mutex_enter(&msp->ms_lock); 5985 range_tree_vacate(msp->ms_allocatable, NULL, NULL); 5986 5987 /* 5988 * We don't want to spend the CPU manipulating the 5989 * size-ordered tree, so clear the range_tree ops. 5990 */ 5991 msp->ms_allocatable->rt_ops = NULL; 5992 5993 if (msp->ms_sm != NULL) { 5994 VERIFY0(space_map_load(msp->ms_sm, 5995 msp->ms_allocatable, maptype)); 5996 } 5997 if (!msp->ms_loaded) 5998 msp->ms_loaded = B_TRUE; 5999 mutex_exit(&msp->ms_lock); 6000 } 6001 } 6002 6003 load_unflushed_to_ms_allocatables(spa, maptype); 6004 } 6005 6006 /* 6007 * vm_idxp is an in-out parameter which (for indirect vdevs) is the 6008 * index in vim_entries that has the first entry in this metaslab. 6009 * On return, it will be set to the first entry after this metaslab. 6010 */ 6011 static void 6012 load_indirect_ms_allocatable_tree(vdev_t *vd, metaslab_t *msp, 6013 uint64_t *vim_idxp) 6014 { 6015 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 6016 6017 mutex_enter(&msp->ms_lock); 6018 range_tree_vacate(msp->ms_allocatable, NULL, NULL); 6019 6020 /* 6021 * We don't want to spend the CPU manipulating the 6022 * size-ordered tree, so clear the range_tree ops. 6023 */ 6024 msp->ms_allocatable->rt_ops = NULL; 6025 6026 for (; *vim_idxp < vdev_indirect_mapping_num_entries(vim); 6027 (*vim_idxp)++) { 6028 vdev_indirect_mapping_entry_phys_t *vimep = 6029 &vim->vim_entries[*vim_idxp]; 6030 uint64_t ent_offset = DVA_MAPPING_GET_SRC_OFFSET(vimep); 6031 uint64_t ent_len = DVA_GET_ASIZE(&vimep->vimep_dst); 6032 ASSERT3U(ent_offset, >=, msp->ms_start); 6033 if (ent_offset >= msp->ms_start + msp->ms_size) 6034 break; 6035 6036 /* 6037 * Mappings do not cross metaslab boundaries, 6038 * because we create them by walking the metaslabs. 6039 */ 6040 ASSERT3U(ent_offset + ent_len, <=, 6041 msp->ms_start + msp->ms_size); 6042 range_tree_add(msp->ms_allocatable, ent_offset, ent_len); 6043 } 6044 6045 if (!msp->ms_loaded) 6046 msp->ms_loaded = B_TRUE; 6047 mutex_exit(&msp->ms_lock); 6048 } 6049 6050 static void 6051 zdb_leak_init_prepare_indirect_vdevs(spa_t *spa, zdb_cb_t *zcb) 6052 { 6053 ASSERT(!dump_opt['L']); 6054 6055 vdev_t *rvd = spa->spa_root_vdev; 6056 for (uint64_t c = 0; c < rvd->vdev_children; c++) { 6057 vdev_t *vd = rvd->vdev_child[c]; 6058 6059 ASSERT3U(c, ==, vd->vdev_id); 6060 6061 if (vd->vdev_ops != &vdev_indirect_ops) 6062 continue; 6063 6064 /* 6065 * Note: we don't check for mapping leaks on 6066 * removing vdevs because their ms_allocatable's 6067 * are used to look for leaks in allocated space. 6068 */ 6069 zcb->zcb_vd_obsolete_counts[c] = zdb_load_obsolete_counts(vd); 6070 6071 /* 6072 * Normally, indirect vdevs don't have any 6073 * metaslabs. We want to set them up for 6074 * zio_claim(). 6075 */ 6076 vdev_metaslab_group_create(vd); 6077 VERIFY0(vdev_metaslab_init(vd, 0)); 6078 6079 vdev_indirect_mapping_t *vim __maybe_unused = 6080 vd->vdev_indirect_mapping; 6081 uint64_t vim_idx = 0; 6082 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 6083 6084 (void) fprintf(stderr, 6085 "\rloading indirect vdev %llu, " 6086 "metaslab %llu of %llu ...", 6087 (longlong_t)vd->vdev_id, 6088 (longlong_t)vd->vdev_ms[m]->ms_id, 6089 (longlong_t)vd->vdev_ms_count); 6090 6091 load_indirect_ms_allocatable_tree(vd, vd->vdev_ms[m], 6092 &vim_idx); 6093 } 6094 ASSERT3U(vim_idx, ==, vdev_indirect_mapping_num_entries(vim)); 6095 } 6096 } 6097 6098 static void 6099 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 6100 { 6101 zcb->zcb_spa = spa; 6102 6103 if (dump_opt['L']) 6104 return; 6105 6106 dsl_pool_t *dp = spa->spa_dsl_pool; 6107 vdev_t *rvd = spa->spa_root_vdev; 6108 6109 /* 6110 * We are going to be changing the meaning of the metaslab's 6111 * ms_allocatable. Ensure that the allocator doesn't try to 6112 * use the tree. 6113 */ 6114 spa->spa_normal_class->mc_ops = &zdb_metaslab_ops; 6115 spa->spa_log_class->mc_ops = &zdb_metaslab_ops; 6116 spa->spa_embedded_log_class->mc_ops = &zdb_metaslab_ops; 6117 6118 zcb->zcb_vd_obsolete_counts = 6119 umem_zalloc(rvd->vdev_children * sizeof (uint32_t *), 6120 UMEM_NOFAIL); 6121 6122 /* 6123 * For leak detection, we overload the ms_allocatable trees 6124 * to contain allocated segments instead of free segments. 6125 * As a result, we can't use the normal metaslab_load/unload 6126 * interfaces. 6127 */ 6128 zdb_leak_init_prepare_indirect_vdevs(spa, zcb); 6129 load_concrete_ms_allocatable_trees(spa, SM_ALLOC); 6130 6131 /* 6132 * On load_concrete_ms_allocatable_trees() we loaded all the 6133 * allocated entries from the ms_sm to the ms_allocatable for 6134 * each metaslab. If the pool has a checkpoint or is in the 6135 * middle of discarding a checkpoint, some of these blocks 6136 * may have been freed but their ms_sm may not have been 6137 * updated because they are referenced by the checkpoint. In 6138 * order to avoid false-positives during leak-detection, we 6139 * go through the vdev's checkpoint space map and exclude all 6140 * its entries from their relevant ms_allocatable. 6141 * 6142 * We also aggregate the space held by the checkpoint and add 6143 * it to zcb_checkpoint_size. 6144 * 6145 * Note that at this point we are also verifying that all the 6146 * entries on the checkpoint_sm are marked as allocated in 6147 * the ms_sm of their relevant metaslab. 6148 * [see comment in checkpoint_sm_exclude_entry_cb()] 6149 */ 6150 zdb_leak_init_exclude_checkpoint(spa, zcb); 6151 ASSERT3U(zcb->zcb_checkpoint_size, ==, spa_get_checkpoint_space(spa)); 6152 6153 /* for cleaner progress output */ 6154 (void) fprintf(stderr, "\n"); 6155 6156 if (bpobj_is_open(&dp->dp_obsolete_bpobj)) { 6157 ASSERT(spa_feature_is_enabled(spa, 6158 SPA_FEATURE_DEVICE_REMOVAL)); 6159 (void) bpobj_iterate_nofree(&dp->dp_obsolete_bpobj, 6160 increment_indirect_mapping_cb, zcb, NULL); 6161 } 6162 6163 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 6164 zdb_ddt_leak_init(spa, zcb); 6165 spa_config_exit(spa, SCL_CONFIG, FTAG); 6166 } 6167 6168 static boolean_t 6169 zdb_check_for_obsolete_leaks(vdev_t *vd, zdb_cb_t *zcb) 6170 { 6171 boolean_t leaks = B_FALSE; 6172 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 6173 uint64_t total_leaked = 0; 6174 boolean_t are_precise = B_FALSE; 6175 6176 ASSERT(vim != NULL); 6177 6178 for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) { 6179 vdev_indirect_mapping_entry_phys_t *vimep = 6180 &vim->vim_entries[i]; 6181 uint64_t obsolete_bytes = 0; 6182 uint64_t offset = DVA_MAPPING_GET_SRC_OFFSET(vimep); 6183 metaslab_t *msp = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 6184 6185 /* 6186 * This is not very efficient but it's easy to 6187 * verify correctness. 6188 */ 6189 for (uint64_t inner_offset = 0; 6190 inner_offset < DVA_GET_ASIZE(&vimep->vimep_dst); 6191 inner_offset += 1 << vd->vdev_ashift) { 6192 if (range_tree_contains(msp->ms_allocatable, 6193 offset + inner_offset, 1 << vd->vdev_ashift)) { 6194 obsolete_bytes += 1 << vd->vdev_ashift; 6195 } 6196 } 6197 6198 int64_t bytes_leaked = obsolete_bytes - 6199 zcb->zcb_vd_obsolete_counts[vd->vdev_id][i]; 6200 ASSERT3U(DVA_GET_ASIZE(&vimep->vimep_dst), >=, 6201 zcb->zcb_vd_obsolete_counts[vd->vdev_id][i]); 6202 6203 VERIFY0(vdev_obsolete_counts_are_precise(vd, &are_precise)); 6204 if (bytes_leaked != 0 && (are_precise || dump_opt['d'] >= 5)) { 6205 (void) printf("obsolete indirect mapping count " 6206 "mismatch on %llu:%llx:%llx : %llx bytes leaked\n", 6207 (u_longlong_t)vd->vdev_id, 6208 (u_longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep), 6209 (u_longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst), 6210 (u_longlong_t)bytes_leaked); 6211 } 6212 total_leaked += ABS(bytes_leaked); 6213 } 6214 6215 VERIFY0(vdev_obsolete_counts_are_precise(vd, &are_precise)); 6216 if (!are_precise && total_leaked > 0) { 6217 int pct_leaked = total_leaked * 100 / 6218 vdev_indirect_mapping_bytes_mapped(vim); 6219 (void) printf("cannot verify obsolete indirect mapping " 6220 "counts of vdev %llu because precise feature was not " 6221 "enabled when it was removed: %d%% (%llx bytes) of mapping" 6222 "unreferenced\n", 6223 (u_longlong_t)vd->vdev_id, pct_leaked, 6224 (u_longlong_t)total_leaked); 6225 } else if (total_leaked > 0) { 6226 (void) printf("obsolete indirect mapping count mismatch " 6227 "for vdev %llu -- %llx total bytes mismatched\n", 6228 (u_longlong_t)vd->vdev_id, 6229 (u_longlong_t)total_leaked); 6230 leaks |= B_TRUE; 6231 } 6232 6233 vdev_indirect_mapping_free_obsolete_counts(vim, 6234 zcb->zcb_vd_obsolete_counts[vd->vdev_id]); 6235 zcb->zcb_vd_obsolete_counts[vd->vdev_id] = NULL; 6236 6237 return (leaks); 6238 } 6239 6240 static boolean_t 6241 zdb_leak_fini(spa_t *spa, zdb_cb_t *zcb) 6242 { 6243 if (dump_opt['L']) 6244 return (B_FALSE); 6245 6246 boolean_t leaks = B_FALSE; 6247 vdev_t *rvd = spa->spa_root_vdev; 6248 for (unsigned c = 0; c < rvd->vdev_children; c++) { 6249 vdev_t *vd = rvd->vdev_child[c]; 6250 6251 if (zcb->zcb_vd_obsolete_counts[c] != NULL) { 6252 leaks |= zdb_check_for_obsolete_leaks(vd, zcb); 6253 } 6254 6255 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 6256 metaslab_t *msp = vd->vdev_ms[m]; 6257 ASSERT3P(msp->ms_group, ==, (msp->ms_group->mg_class == 6258 spa_embedded_log_class(spa)) ? 6259 vd->vdev_log_mg : vd->vdev_mg); 6260 6261 /* 6262 * ms_allocatable has been overloaded 6263 * to contain allocated segments. Now that 6264 * we finished traversing all blocks, any 6265 * block that remains in the ms_allocatable 6266 * represents an allocated block that we 6267 * did not claim during the traversal. 6268 * Claimed blocks would have been removed 6269 * from the ms_allocatable. For indirect 6270 * vdevs, space remaining in the tree 6271 * represents parts of the mapping that are 6272 * not referenced, which is not a bug. 6273 */ 6274 if (vd->vdev_ops == &vdev_indirect_ops) { 6275 range_tree_vacate(msp->ms_allocatable, 6276 NULL, NULL); 6277 } else { 6278 range_tree_vacate(msp->ms_allocatable, 6279 zdb_leak, vd); 6280 } 6281 if (msp->ms_loaded) { 6282 msp->ms_loaded = B_FALSE; 6283 } 6284 } 6285 } 6286 6287 umem_free(zcb->zcb_vd_obsolete_counts, 6288 rvd->vdev_children * sizeof (uint32_t *)); 6289 zcb->zcb_vd_obsolete_counts = NULL; 6290 6291 return (leaks); 6292 } 6293 6294 static int 6295 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 6296 { 6297 (void) tx; 6298 zdb_cb_t *zcb = arg; 6299 6300 if (dump_opt['b'] >= 5) { 6301 char blkbuf[BP_SPRINTF_LEN]; 6302 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 6303 (void) printf("[%s] %s\n", 6304 "deferred free", blkbuf); 6305 } 6306 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 6307 return (0); 6308 } 6309 6310 /* 6311 * Iterate over livelists which have been destroyed by the user but 6312 * are still present in the MOS, waiting to be freed 6313 */ 6314 static void 6315 iterate_deleted_livelists(spa_t *spa, ll_iter_t func, void *arg) 6316 { 6317 objset_t *mos = spa->spa_meta_objset; 6318 uint64_t zap_obj; 6319 int err = zap_lookup(mos, DMU_POOL_DIRECTORY_OBJECT, 6320 DMU_POOL_DELETED_CLONES, sizeof (uint64_t), 1, &zap_obj); 6321 if (err == ENOENT) 6322 return; 6323 ASSERT0(err); 6324 6325 zap_cursor_t zc; 6326 zap_attribute_t attr; 6327 dsl_deadlist_t ll; 6328 /* NULL out os prior to dsl_deadlist_open in case it's garbage */ 6329 ll.dl_os = NULL; 6330 for (zap_cursor_init(&zc, mos, zap_obj); 6331 zap_cursor_retrieve(&zc, &attr) == 0; 6332 (void) zap_cursor_advance(&zc)) { 6333 dsl_deadlist_open(&ll, mos, attr.za_first_integer); 6334 func(&ll, arg); 6335 dsl_deadlist_close(&ll); 6336 } 6337 zap_cursor_fini(&zc); 6338 } 6339 6340 static int 6341 bpobj_count_block_cb(void *arg, const blkptr_t *bp, boolean_t bp_freed, 6342 dmu_tx_t *tx) 6343 { 6344 ASSERT(!bp_freed); 6345 return (count_block_cb(arg, bp, tx)); 6346 } 6347 6348 static int 6349 livelist_entry_count_blocks_cb(void *args, dsl_deadlist_entry_t *dle) 6350 { 6351 zdb_cb_t *zbc = args; 6352 bplist_t blks; 6353 bplist_create(&blks); 6354 /* determine which blocks have been alloc'd but not freed */ 6355 VERIFY0(dsl_process_sub_livelist(&dle->dle_bpobj, &blks, NULL, NULL)); 6356 /* count those blocks */ 6357 (void) bplist_iterate(&blks, count_block_cb, zbc, NULL); 6358 bplist_destroy(&blks); 6359 return (0); 6360 } 6361 6362 static void 6363 livelist_count_blocks(dsl_deadlist_t *ll, void *arg) 6364 { 6365 dsl_deadlist_iterate(ll, livelist_entry_count_blocks_cb, arg); 6366 } 6367 6368 /* 6369 * Count the blocks in the livelists that have been destroyed by the user 6370 * but haven't yet been freed. 6371 */ 6372 static void 6373 deleted_livelists_count_blocks(spa_t *spa, zdb_cb_t *zbc) 6374 { 6375 iterate_deleted_livelists(spa, livelist_count_blocks, zbc); 6376 } 6377 6378 static void 6379 dump_livelist_cb(dsl_deadlist_t *ll, void *arg) 6380 { 6381 ASSERT3P(arg, ==, NULL); 6382 global_feature_count[SPA_FEATURE_LIVELIST]++; 6383 dump_blkptr_list(ll, "Deleted Livelist"); 6384 dsl_deadlist_iterate(ll, sublivelist_verify_lightweight, NULL); 6385 } 6386 6387 /* 6388 * Print out, register object references to, and increment feature counts for 6389 * livelists that have been destroyed by the user but haven't yet been freed. 6390 */ 6391 static void 6392 deleted_livelists_dump_mos(spa_t *spa) 6393 { 6394 uint64_t zap_obj; 6395 objset_t *mos = spa->spa_meta_objset; 6396 int err = zap_lookup(mos, DMU_POOL_DIRECTORY_OBJECT, 6397 DMU_POOL_DELETED_CLONES, sizeof (uint64_t), 1, &zap_obj); 6398 if (err == ENOENT) 6399 return; 6400 mos_obj_refd(zap_obj); 6401 iterate_deleted_livelists(spa, dump_livelist_cb, NULL); 6402 } 6403 6404 static int 6405 dump_block_stats(spa_t *spa) 6406 { 6407 zdb_cb_t zcb = {{{{0}}}}; 6408 zdb_blkstats_t *zb, *tzb; 6409 uint64_t norm_alloc, norm_space, total_alloc, total_found; 6410 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | 6411 TRAVERSE_NO_DECRYPT | TRAVERSE_HARD; 6412 boolean_t leaks = B_FALSE; 6413 int e, c, err; 6414 bp_embedded_type_t i; 6415 6416 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 6417 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 6418 (dump_opt['c'] == 1) ? "metadata " : "", 6419 dump_opt['c'] ? "checksums " : "", 6420 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 6421 !dump_opt['L'] ? "nothing leaked " : ""); 6422 6423 /* 6424 * When leak detection is enabled we load all space maps as SM_ALLOC 6425 * maps, then traverse the pool claiming each block we discover. If 6426 * the pool is perfectly consistent, the segment trees will be empty 6427 * when we're done. Anything left over is a leak; any block we can't 6428 * claim (because it's not part of any space map) is a double 6429 * allocation, reference to a freed block, or an unclaimed log block. 6430 * 6431 * When leak detection is disabled (-L option) we still traverse the 6432 * pool claiming each block we discover, but we skip opening any space 6433 * maps. 6434 */ 6435 zdb_leak_init(spa, &zcb); 6436 6437 /* 6438 * If there's a deferred-free bplist, process that first. 6439 */ 6440 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 6441 bpobj_count_block_cb, &zcb, NULL); 6442 6443 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 6444 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 6445 bpobj_count_block_cb, &zcb, NULL); 6446 } 6447 6448 zdb_claim_removing(spa, &zcb); 6449 6450 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 6451 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 6452 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 6453 &zcb, NULL)); 6454 } 6455 6456 deleted_livelists_count_blocks(spa, &zcb); 6457 6458 if (dump_opt['c'] > 1) 6459 flags |= TRAVERSE_PREFETCH_DATA; 6460 6461 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 6462 zcb.zcb_totalasize += metaslab_class_get_alloc(spa_special_class(spa)); 6463 zcb.zcb_totalasize += metaslab_class_get_alloc(spa_dedup_class(spa)); 6464 zcb.zcb_totalasize += 6465 metaslab_class_get_alloc(spa_embedded_log_class(spa)); 6466 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 6467 err = traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 6468 6469 /* 6470 * If we've traversed the data blocks then we need to wait for those 6471 * I/Os to complete. We leverage "The Godfather" zio to wait on 6472 * all async I/Os to complete. 6473 */ 6474 if (dump_opt['c']) { 6475 for (c = 0; c < max_ncpus; c++) { 6476 (void) zio_wait(spa->spa_async_zio_root[c]); 6477 spa->spa_async_zio_root[c] = zio_root(spa, NULL, NULL, 6478 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 6479 ZIO_FLAG_GODFATHER); 6480 } 6481 } 6482 ASSERT0(spa->spa_load_verify_bytes); 6483 6484 /* 6485 * Done after zio_wait() since zcb_haderrors is modified in 6486 * zdb_blkptr_done() 6487 */ 6488 zcb.zcb_haderrors |= err; 6489 6490 if (zcb.zcb_haderrors) { 6491 (void) printf("\nError counts:\n\n"); 6492 (void) printf("\t%5s %s\n", "errno", "count"); 6493 for (e = 0; e < 256; e++) { 6494 if (zcb.zcb_errors[e] != 0) { 6495 (void) printf("\t%5d %llu\n", 6496 e, (u_longlong_t)zcb.zcb_errors[e]); 6497 } 6498 } 6499 } 6500 6501 /* 6502 * Report any leaked segments. 6503 */ 6504 leaks |= zdb_leak_fini(spa, &zcb); 6505 6506 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 6507 6508 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 6509 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 6510 6511 total_alloc = norm_alloc + 6512 metaslab_class_get_alloc(spa_log_class(spa)) + 6513 metaslab_class_get_alloc(spa_embedded_log_class(spa)) + 6514 metaslab_class_get_alloc(spa_special_class(spa)) + 6515 metaslab_class_get_alloc(spa_dedup_class(spa)) + 6516 get_unflushed_alloc_space(spa); 6517 total_found = tzb->zb_asize - zcb.zcb_dedup_asize + 6518 zcb.zcb_removing_size + zcb.zcb_checkpoint_size; 6519 6520 if (total_found == total_alloc && !dump_opt['L']) { 6521 (void) printf("\n\tNo leaks (block sum matches space" 6522 " maps exactly)\n"); 6523 } else if (!dump_opt['L']) { 6524 (void) printf("block traversal size %llu != alloc %llu " 6525 "(%s %lld)\n", 6526 (u_longlong_t)total_found, 6527 (u_longlong_t)total_alloc, 6528 (dump_opt['L']) ? "unreachable" : "leaked", 6529 (longlong_t)(total_alloc - total_found)); 6530 leaks = B_TRUE; 6531 } 6532 6533 if (tzb->zb_count == 0) 6534 return (2); 6535 6536 (void) printf("\n"); 6537 (void) printf("\t%-16s %14llu\n", "bp count:", 6538 (u_longlong_t)tzb->zb_count); 6539 (void) printf("\t%-16s %14llu\n", "ganged count:", 6540 (longlong_t)tzb->zb_gangs); 6541 (void) printf("\t%-16s %14llu avg: %6llu\n", "bp logical:", 6542 (u_longlong_t)tzb->zb_lsize, 6543 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 6544 (void) printf("\t%-16s %14llu avg: %6llu compression: %6.2f\n", 6545 "bp physical:", (u_longlong_t)tzb->zb_psize, 6546 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 6547 (double)tzb->zb_lsize / tzb->zb_psize); 6548 (void) printf("\t%-16s %14llu avg: %6llu compression: %6.2f\n", 6549 "bp allocated:", (u_longlong_t)tzb->zb_asize, 6550 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 6551 (double)tzb->zb_lsize / tzb->zb_asize); 6552 (void) printf("\t%-16s %14llu ref>1: %6llu deduplication: %6.2f\n", 6553 "bp deduped:", (u_longlong_t)zcb.zcb_dedup_asize, 6554 (u_longlong_t)zcb.zcb_dedup_blocks, 6555 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 6556 (void) printf("\t%-16s %14llu used: %5.2f%%\n", "Normal class:", 6557 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 6558 6559 if (spa_special_class(spa)->mc_allocator[0].mca_rotor != NULL) { 6560 uint64_t alloc = metaslab_class_get_alloc( 6561 spa_special_class(spa)); 6562 uint64_t space = metaslab_class_get_space( 6563 spa_special_class(spa)); 6564 6565 (void) printf("\t%-16s %14llu used: %5.2f%%\n", 6566 "Special class", (u_longlong_t)alloc, 6567 100.0 * alloc / space); 6568 } 6569 6570 if (spa_dedup_class(spa)->mc_allocator[0].mca_rotor != NULL) { 6571 uint64_t alloc = metaslab_class_get_alloc( 6572 spa_dedup_class(spa)); 6573 uint64_t space = metaslab_class_get_space( 6574 spa_dedup_class(spa)); 6575 6576 (void) printf("\t%-16s %14llu used: %5.2f%%\n", 6577 "Dedup class", (u_longlong_t)alloc, 6578 100.0 * alloc / space); 6579 } 6580 6581 if (spa_embedded_log_class(spa)->mc_allocator[0].mca_rotor != NULL) { 6582 uint64_t alloc = metaslab_class_get_alloc( 6583 spa_embedded_log_class(spa)); 6584 uint64_t space = metaslab_class_get_space( 6585 spa_embedded_log_class(spa)); 6586 6587 (void) printf("\t%-16s %14llu used: %5.2f%%\n", 6588 "Embedded log class", (u_longlong_t)alloc, 6589 100.0 * alloc / space); 6590 } 6591 6592 for (i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) { 6593 if (zcb.zcb_embedded_blocks[i] == 0) 6594 continue; 6595 (void) printf("\n"); 6596 (void) printf("\tadditional, non-pointer bps of type %u: " 6597 "%10llu\n", 6598 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]); 6599 6600 if (dump_opt['b'] >= 3) { 6601 (void) printf("\t number of (compressed) bytes: " 6602 "number of bps\n"); 6603 dump_histogram(zcb.zcb_embedded_histogram[i], 6604 sizeof (zcb.zcb_embedded_histogram[i]) / 6605 sizeof (zcb.zcb_embedded_histogram[i][0]), 0); 6606 } 6607 } 6608 6609 if (tzb->zb_ditto_samevdev != 0) { 6610 (void) printf("\tDittoed blocks on same vdev: %llu\n", 6611 (longlong_t)tzb->zb_ditto_samevdev); 6612 } 6613 if (tzb->zb_ditto_same_ms != 0) { 6614 (void) printf("\tDittoed blocks in same metaslab: %llu\n", 6615 (longlong_t)tzb->zb_ditto_same_ms); 6616 } 6617 6618 for (uint64_t v = 0; v < spa->spa_root_vdev->vdev_children; v++) { 6619 vdev_t *vd = spa->spa_root_vdev->vdev_child[v]; 6620 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 6621 6622 if (vim == NULL) { 6623 continue; 6624 } 6625 6626 char mem[32]; 6627 zdb_nicenum(vdev_indirect_mapping_num_entries(vim), 6628 mem, vdev_indirect_mapping_size(vim)); 6629 6630 (void) printf("\tindirect vdev id %llu has %llu segments " 6631 "(%s in memory)\n", 6632 (longlong_t)vd->vdev_id, 6633 (longlong_t)vdev_indirect_mapping_num_entries(vim), mem); 6634 } 6635 6636 if (dump_opt['b'] >= 2) { 6637 int l, t, level; 6638 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 6639 "\t avg\t comp\t%%Total\tType\n"); 6640 6641 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 6642 char csize[32], lsize[32], psize[32], asize[32]; 6643 char avg[32], gang[32]; 6644 const char *typename; 6645 6646 /* make sure nicenum has enough space */ 6647 _Static_assert(sizeof (csize) >= NN_NUMBUF_SZ, 6648 "csize truncated"); 6649 _Static_assert(sizeof (lsize) >= NN_NUMBUF_SZ, 6650 "lsize truncated"); 6651 _Static_assert(sizeof (psize) >= NN_NUMBUF_SZ, 6652 "psize truncated"); 6653 _Static_assert(sizeof (asize) >= NN_NUMBUF_SZ, 6654 "asize truncated"); 6655 _Static_assert(sizeof (avg) >= NN_NUMBUF_SZ, 6656 "avg truncated"); 6657 _Static_assert(sizeof (gang) >= NN_NUMBUF_SZ, 6658 "gang truncated"); 6659 6660 if (t < DMU_OT_NUMTYPES) 6661 typename = dmu_ot[t].ot_name; 6662 else 6663 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 6664 6665 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 6666 (void) printf("%6s\t%5s\t%5s\t%5s" 6667 "\t%5s\t%5s\t%6s\t%s\n", 6668 "-", 6669 "-", 6670 "-", 6671 "-", 6672 "-", 6673 "-", 6674 "-", 6675 typename); 6676 continue; 6677 } 6678 6679 for (l = ZB_TOTAL - 1; l >= -1; l--) { 6680 level = (l == -1 ? ZB_TOTAL : l); 6681 zb = &zcb.zcb_type[level][t]; 6682 6683 if (zb->zb_asize == 0) 6684 continue; 6685 6686 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 6687 continue; 6688 6689 if (level == 0 && zb->zb_asize == 6690 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 6691 continue; 6692 6693 zdb_nicenum(zb->zb_count, csize, 6694 sizeof (csize)); 6695 zdb_nicenum(zb->zb_lsize, lsize, 6696 sizeof (lsize)); 6697 zdb_nicenum(zb->zb_psize, psize, 6698 sizeof (psize)); 6699 zdb_nicenum(zb->zb_asize, asize, 6700 sizeof (asize)); 6701 zdb_nicenum(zb->zb_asize / zb->zb_count, avg, 6702 sizeof (avg)); 6703 zdb_nicenum(zb->zb_gangs, gang, sizeof (gang)); 6704 6705 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 6706 "\t%5.2f\t%6.2f\t", 6707 csize, lsize, psize, asize, avg, 6708 (double)zb->zb_lsize / zb->zb_psize, 6709 100.0 * zb->zb_asize / tzb->zb_asize); 6710 6711 if (level == ZB_TOTAL) 6712 (void) printf("%s\n", typename); 6713 else 6714 (void) printf(" L%d %s\n", 6715 level, typename); 6716 6717 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { 6718 (void) printf("\t number of ganged " 6719 "blocks: %s\n", gang); 6720 } 6721 6722 if (dump_opt['b'] >= 4) { 6723 (void) printf("psize " 6724 "(in 512-byte sectors): " 6725 "number of blocks\n"); 6726 dump_histogram(zb->zb_psize_histogram, 6727 PSIZE_HISTO_SIZE, 0); 6728 } 6729 } 6730 } 6731 6732 /* Output a table summarizing block sizes in the pool */ 6733 if (dump_opt['b'] >= 2) { 6734 dump_size_histograms(&zcb); 6735 } 6736 } 6737 6738 (void) printf("\n"); 6739 6740 if (leaks) 6741 return (2); 6742 6743 if (zcb.zcb_haderrors) 6744 return (3); 6745 6746 return (0); 6747 } 6748 6749 typedef struct zdb_ddt_entry { 6750 ddt_key_t zdde_key; 6751 uint64_t zdde_ref_blocks; 6752 uint64_t zdde_ref_lsize; 6753 uint64_t zdde_ref_psize; 6754 uint64_t zdde_ref_dsize; 6755 avl_node_t zdde_node; 6756 } zdb_ddt_entry_t; 6757 6758 static int 6759 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 6760 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 6761 { 6762 (void) zilog, (void) dnp; 6763 avl_tree_t *t = arg; 6764 avl_index_t where; 6765 zdb_ddt_entry_t *zdde, zdde_search; 6766 6767 if (zb->zb_level == ZB_DNODE_LEVEL || BP_IS_HOLE(bp) || 6768 BP_IS_EMBEDDED(bp)) 6769 return (0); 6770 6771 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 6772 (void) printf("traversing objset %llu, %llu objects, " 6773 "%lu blocks so far\n", 6774 (u_longlong_t)zb->zb_objset, 6775 (u_longlong_t)BP_GET_FILL(bp), 6776 avl_numnodes(t)); 6777 } 6778 6779 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 6780 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 6781 return (0); 6782 6783 ddt_key_fill(&zdde_search.zdde_key, bp); 6784 6785 zdde = avl_find(t, &zdde_search, &where); 6786 6787 if (zdde == NULL) { 6788 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 6789 zdde->zdde_key = zdde_search.zdde_key; 6790 avl_insert(t, zdde, where); 6791 } 6792 6793 zdde->zdde_ref_blocks += 1; 6794 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 6795 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 6796 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 6797 6798 return (0); 6799 } 6800 6801 static void 6802 dump_simulated_ddt(spa_t *spa) 6803 { 6804 avl_tree_t t; 6805 void *cookie = NULL; 6806 zdb_ddt_entry_t *zdde; 6807 ddt_histogram_t ddh_total = {{{0}}}; 6808 ddt_stat_t dds_total = {0}; 6809 6810 avl_create(&t, ddt_entry_compare, 6811 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 6812 6813 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 6814 6815 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | 6816 TRAVERSE_NO_DECRYPT, zdb_ddt_add_cb, &t); 6817 6818 spa_config_exit(spa, SCL_CONFIG, FTAG); 6819 6820 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 6821 ddt_stat_t dds; 6822 uint64_t refcnt = zdde->zdde_ref_blocks; 6823 ASSERT(refcnt != 0); 6824 6825 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 6826 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 6827 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 6828 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 6829 6830 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 6831 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 6832 dds.dds_ref_psize = zdde->zdde_ref_psize; 6833 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 6834 6835 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1], 6836 &dds, 0); 6837 6838 umem_free(zdde, sizeof (*zdde)); 6839 } 6840 6841 avl_destroy(&t); 6842 6843 ddt_histogram_stat(&dds_total, &ddh_total); 6844 6845 (void) printf("Simulated DDT histogram:\n"); 6846 6847 zpool_dump_ddt(&dds_total, &ddh_total); 6848 6849 dump_dedup_ratio(&dds_total); 6850 } 6851 6852 static int 6853 verify_device_removal_feature_counts(spa_t *spa) 6854 { 6855 uint64_t dr_feature_refcount = 0; 6856 uint64_t oc_feature_refcount = 0; 6857 uint64_t indirect_vdev_count = 0; 6858 uint64_t precise_vdev_count = 0; 6859 uint64_t obsolete_counts_object_count = 0; 6860 uint64_t obsolete_sm_count = 0; 6861 uint64_t obsolete_counts_count = 0; 6862 uint64_t scip_count = 0; 6863 uint64_t obsolete_bpobj_count = 0; 6864 int ret = 0; 6865 6866 spa_condensing_indirect_phys_t *scip = 6867 &spa->spa_condensing_indirect_phys; 6868 if (scip->scip_next_mapping_object != 0) { 6869 vdev_t *vd = spa->spa_root_vdev->vdev_child[scip->scip_vdev]; 6870 ASSERT(scip->scip_prev_obsolete_sm_object != 0); 6871 ASSERT3P(vd->vdev_ops, ==, &vdev_indirect_ops); 6872 6873 (void) printf("Condensing indirect vdev %llu: new mapping " 6874 "object %llu, prev obsolete sm %llu\n", 6875 (u_longlong_t)scip->scip_vdev, 6876 (u_longlong_t)scip->scip_next_mapping_object, 6877 (u_longlong_t)scip->scip_prev_obsolete_sm_object); 6878 if (scip->scip_prev_obsolete_sm_object != 0) { 6879 space_map_t *prev_obsolete_sm = NULL; 6880 VERIFY0(space_map_open(&prev_obsolete_sm, 6881 spa->spa_meta_objset, 6882 scip->scip_prev_obsolete_sm_object, 6883 0, vd->vdev_asize, 0)); 6884 dump_spacemap(spa->spa_meta_objset, prev_obsolete_sm); 6885 (void) printf("\n"); 6886 space_map_close(prev_obsolete_sm); 6887 } 6888 6889 scip_count += 2; 6890 } 6891 6892 for (uint64_t i = 0; i < spa->spa_root_vdev->vdev_children; i++) { 6893 vdev_t *vd = spa->spa_root_vdev->vdev_child[i]; 6894 vdev_indirect_config_t *vic = &vd->vdev_indirect_config; 6895 6896 if (vic->vic_mapping_object != 0) { 6897 ASSERT(vd->vdev_ops == &vdev_indirect_ops || 6898 vd->vdev_removing); 6899 indirect_vdev_count++; 6900 6901 if (vd->vdev_indirect_mapping->vim_havecounts) { 6902 obsolete_counts_count++; 6903 } 6904 } 6905 6906 boolean_t are_precise; 6907 VERIFY0(vdev_obsolete_counts_are_precise(vd, &are_precise)); 6908 if (are_precise) { 6909 ASSERT(vic->vic_mapping_object != 0); 6910 precise_vdev_count++; 6911 } 6912 6913 uint64_t obsolete_sm_object; 6914 VERIFY0(vdev_obsolete_sm_object(vd, &obsolete_sm_object)); 6915 if (obsolete_sm_object != 0) { 6916 ASSERT(vic->vic_mapping_object != 0); 6917 obsolete_sm_count++; 6918 } 6919 } 6920 6921 (void) feature_get_refcount(spa, 6922 &spa_feature_table[SPA_FEATURE_DEVICE_REMOVAL], 6923 &dr_feature_refcount); 6924 (void) feature_get_refcount(spa, 6925 &spa_feature_table[SPA_FEATURE_OBSOLETE_COUNTS], 6926 &oc_feature_refcount); 6927 6928 if (dr_feature_refcount != indirect_vdev_count) { 6929 ret = 1; 6930 (void) printf("Number of indirect vdevs (%llu) " \ 6931 "does not match feature count (%llu)\n", 6932 (u_longlong_t)indirect_vdev_count, 6933 (u_longlong_t)dr_feature_refcount); 6934 } else { 6935 (void) printf("Verified device_removal feature refcount " \ 6936 "of %llu is correct\n", 6937 (u_longlong_t)dr_feature_refcount); 6938 } 6939 6940 if (zap_contains(spa_meta_objset(spa), DMU_POOL_DIRECTORY_OBJECT, 6941 DMU_POOL_OBSOLETE_BPOBJ) == 0) { 6942 obsolete_bpobj_count++; 6943 } 6944 6945 6946 obsolete_counts_object_count = precise_vdev_count; 6947 obsolete_counts_object_count += obsolete_sm_count; 6948 obsolete_counts_object_count += obsolete_counts_count; 6949 obsolete_counts_object_count += scip_count; 6950 obsolete_counts_object_count += obsolete_bpobj_count; 6951 obsolete_counts_object_count += remap_deadlist_count; 6952 6953 if (oc_feature_refcount != obsolete_counts_object_count) { 6954 ret = 1; 6955 (void) printf("Number of obsolete counts objects (%llu) " \ 6956 "does not match feature count (%llu)\n", 6957 (u_longlong_t)obsolete_counts_object_count, 6958 (u_longlong_t)oc_feature_refcount); 6959 (void) printf("pv:%llu os:%llu oc:%llu sc:%llu " 6960 "ob:%llu rd:%llu\n", 6961 (u_longlong_t)precise_vdev_count, 6962 (u_longlong_t)obsolete_sm_count, 6963 (u_longlong_t)obsolete_counts_count, 6964 (u_longlong_t)scip_count, 6965 (u_longlong_t)obsolete_bpobj_count, 6966 (u_longlong_t)remap_deadlist_count); 6967 } else { 6968 (void) printf("Verified indirect_refcount feature refcount " \ 6969 "of %llu is correct\n", 6970 (u_longlong_t)oc_feature_refcount); 6971 } 6972 return (ret); 6973 } 6974 6975 static void 6976 zdb_set_skip_mmp(char *target) 6977 { 6978 spa_t *spa; 6979 6980 /* 6981 * Disable the activity check to allow examination of 6982 * active pools. 6983 */ 6984 mutex_enter(&spa_namespace_lock); 6985 if ((spa = spa_lookup(target)) != NULL) { 6986 spa->spa_import_flags |= ZFS_IMPORT_SKIP_MMP; 6987 } 6988 mutex_exit(&spa_namespace_lock); 6989 } 6990 6991 #define BOGUS_SUFFIX "_CHECKPOINTED_UNIVERSE" 6992 /* 6993 * Import the checkpointed state of the pool specified by the target 6994 * parameter as readonly. The function also accepts a pool config 6995 * as an optional parameter, else it attempts to infer the config by 6996 * the name of the target pool. 6997 * 6998 * Note that the checkpointed state's pool name will be the name of 6999 * the original pool with the above suffix appended to it. In addition, 7000 * if the target is not a pool name (e.g. a path to a dataset) then 7001 * the new_path parameter is populated with the updated path to 7002 * reflect the fact that we are looking into the checkpointed state. 7003 * 7004 * The function returns a newly-allocated copy of the name of the 7005 * pool containing the checkpointed state. When this copy is no 7006 * longer needed it should be freed with free(3C). Same thing 7007 * applies to the new_path parameter if allocated. 7008 */ 7009 static char * 7010 import_checkpointed_state(char *target, nvlist_t *cfg, char **new_path) 7011 { 7012 int error = 0; 7013 char *poolname, *bogus_name = NULL; 7014 boolean_t freecfg = B_FALSE; 7015 7016 /* If the target is not a pool, the extract the pool name */ 7017 char *path_start = strchr(target, '/'); 7018 if (path_start != NULL) { 7019 size_t poolname_len = path_start - target; 7020 poolname = strndup(target, poolname_len); 7021 } else { 7022 poolname = target; 7023 } 7024 7025 if (cfg == NULL) { 7026 zdb_set_skip_mmp(poolname); 7027 error = spa_get_stats(poolname, &cfg, NULL, 0); 7028 if (error != 0) { 7029 fatal("Tried to read config of pool \"%s\" but " 7030 "spa_get_stats() failed with error %d\n", 7031 poolname, error); 7032 } 7033 freecfg = B_TRUE; 7034 } 7035 7036 if (asprintf(&bogus_name, "%s%s", poolname, BOGUS_SUFFIX) == -1) 7037 return (NULL); 7038 fnvlist_add_string(cfg, ZPOOL_CONFIG_POOL_NAME, bogus_name); 7039 7040 error = spa_import(bogus_name, cfg, NULL, 7041 ZFS_IMPORT_MISSING_LOG | ZFS_IMPORT_CHECKPOINT | 7042 ZFS_IMPORT_SKIP_MMP); 7043 if (freecfg) 7044 nvlist_free(cfg); 7045 if (error != 0) { 7046 fatal("Tried to import pool \"%s\" but spa_import() failed " 7047 "with error %d\n", bogus_name, error); 7048 } 7049 7050 if (new_path != NULL && path_start != NULL) { 7051 if (asprintf(new_path, "%s%s", bogus_name, path_start) == -1) { 7052 if (path_start != NULL) 7053 free(poolname); 7054 return (NULL); 7055 } 7056 } 7057 7058 if (target != poolname) 7059 free(poolname); 7060 7061 return (bogus_name); 7062 } 7063 7064 typedef struct verify_checkpoint_sm_entry_cb_arg { 7065 vdev_t *vcsec_vd; 7066 7067 /* the following fields are only used for printing progress */ 7068 uint64_t vcsec_entryid; 7069 uint64_t vcsec_num_entries; 7070 } verify_checkpoint_sm_entry_cb_arg_t; 7071 7072 #define ENTRIES_PER_PROGRESS_UPDATE 10000 7073 7074 static int 7075 verify_checkpoint_sm_entry_cb(space_map_entry_t *sme, void *arg) 7076 { 7077 verify_checkpoint_sm_entry_cb_arg_t *vcsec = arg; 7078 vdev_t *vd = vcsec->vcsec_vd; 7079 metaslab_t *ms = vd->vdev_ms[sme->sme_offset >> vd->vdev_ms_shift]; 7080 uint64_t end = sme->sme_offset + sme->sme_run; 7081 7082 ASSERT(sme->sme_type == SM_FREE); 7083 7084 if ((vcsec->vcsec_entryid % ENTRIES_PER_PROGRESS_UPDATE) == 0) { 7085 (void) fprintf(stderr, 7086 "\rverifying vdev %llu, space map entry %llu of %llu ...", 7087 (longlong_t)vd->vdev_id, 7088 (longlong_t)vcsec->vcsec_entryid, 7089 (longlong_t)vcsec->vcsec_num_entries); 7090 } 7091 vcsec->vcsec_entryid++; 7092 7093 /* 7094 * See comment in checkpoint_sm_exclude_entry_cb() 7095 */ 7096 VERIFY3U(sme->sme_offset, >=, ms->ms_start); 7097 VERIFY3U(end, <=, ms->ms_start + ms->ms_size); 7098 7099 /* 7100 * The entries in the vdev_checkpoint_sm should be marked as 7101 * allocated in the checkpointed state of the pool, therefore 7102 * their respective ms_allocateable trees should not contain them. 7103 */ 7104 mutex_enter(&ms->ms_lock); 7105 range_tree_verify_not_present(ms->ms_allocatable, 7106 sme->sme_offset, sme->sme_run); 7107 mutex_exit(&ms->ms_lock); 7108 7109 return (0); 7110 } 7111 7112 /* 7113 * Verify that all segments in the vdev_checkpoint_sm are allocated 7114 * according to the checkpoint's ms_sm (i.e. are not in the checkpoint's 7115 * ms_allocatable). 7116 * 7117 * Do so by comparing the checkpoint space maps (vdev_checkpoint_sm) of 7118 * each vdev in the current state of the pool to the metaslab space maps 7119 * (ms_sm) of the checkpointed state of the pool. 7120 * 7121 * Note that the function changes the state of the ms_allocatable 7122 * trees of the current spa_t. The entries of these ms_allocatable 7123 * trees are cleared out and then repopulated from with the free 7124 * entries of their respective ms_sm space maps. 7125 */ 7126 static void 7127 verify_checkpoint_vdev_spacemaps(spa_t *checkpoint, spa_t *current) 7128 { 7129 vdev_t *ckpoint_rvd = checkpoint->spa_root_vdev; 7130 vdev_t *current_rvd = current->spa_root_vdev; 7131 7132 load_concrete_ms_allocatable_trees(checkpoint, SM_FREE); 7133 7134 for (uint64_t c = 0; c < ckpoint_rvd->vdev_children; c++) { 7135 vdev_t *ckpoint_vd = ckpoint_rvd->vdev_child[c]; 7136 vdev_t *current_vd = current_rvd->vdev_child[c]; 7137 7138 space_map_t *checkpoint_sm = NULL; 7139 uint64_t checkpoint_sm_obj; 7140 7141 if (ckpoint_vd->vdev_ops == &vdev_indirect_ops) { 7142 /* 7143 * Since we don't allow device removal in a pool 7144 * that has a checkpoint, we expect that all removed 7145 * vdevs were removed from the pool before the 7146 * checkpoint. 7147 */ 7148 ASSERT3P(current_vd->vdev_ops, ==, &vdev_indirect_ops); 7149 continue; 7150 } 7151 7152 /* 7153 * If the checkpoint space map doesn't exist, then nothing 7154 * here is checkpointed so there's nothing to verify. 7155 */ 7156 if (current_vd->vdev_top_zap == 0 || 7157 zap_contains(spa_meta_objset(current), 7158 current_vd->vdev_top_zap, 7159 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0) 7160 continue; 7161 7162 VERIFY0(zap_lookup(spa_meta_objset(current), 7163 current_vd->vdev_top_zap, VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, 7164 sizeof (uint64_t), 1, &checkpoint_sm_obj)); 7165 7166 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(current), 7167 checkpoint_sm_obj, 0, current_vd->vdev_asize, 7168 current_vd->vdev_ashift)); 7169 7170 verify_checkpoint_sm_entry_cb_arg_t vcsec; 7171 vcsec.vcsec_vd = ckpoint_vd; 7172 vcsec.vcsec_entryid = 0; 7173 vcsec.vcsec_num_entries = 7174 space_map_length(checkpoint_sm) / sizeof (uint64_t); 7175 VERIFY0(space_map_iterate(checkpoint_sm, 7176 space_map_length(checkpoint_sm), 7177 verify_checkpoint_sm_entry_cb, &vcsec)); 7178 if (dump_opt['m'] > 3) 7179 dump_spacemap(current->spa_meta_objset, checkpoint_sm); 7180 space_map_close(checkpoint_sm); 7181 } 7182 7183 /* 7184 * If we've added vdevs since we took the checkpoint, ensure 7185 * that their checkpoint space maps are empty. 7186 */ 7187 if (ckpoint_rvd->vdev_children < current_rvd->vdev_children) { 7188 for (uint64_t c = ckpoint_rvd->vdev_children; 7189 c < current_rvd->vdev_children; c++) { 7190 vdev_t *current_vd = current_rvd->vdev_child[c]; 7191 VERIFY3P(current_vd->vdev_checkpoint_sm, ==, NULL); 7192 } 7193 } 7194 7195 /* for cleaner progress output */ 7196 (void) fprintf(stderr, "\n"); 7197 } 7198 7199 /* 7200 * Verifies that all space that's allocated in the checkpoint is 7201 * still allocated in the current version, by checking that everything 7202 * in checkpoint's ms_allocatable (which is actually allocated, not 7203 * allocatable/free) is not present in current's ms_allocatable. 7204 * 7205 * Note that the function changes the state of the ms_allocatable 7206 * trees of both spas when called. The entries of all ms_allocatable 7207 * trees are cleared out and then repopulated from their respective 7208 * ms_sm space maps. In the checkpointed state we load the allocated 7209 * entries, and in the current state we load the free entries. 7210 */ 7211 static void 7212 verify_checkpoint_ms_spacemaps(spa_t *checkpoint, spa_t *current) 7213 { 7214 vdev_t *ckpoint_rvd = checkpoint->spa_root_vdev; 7215 vdev_t *current_rvd = current->spa_root_vdev; 7216 7217 load_concrete_ms_allocatable_trees(checkpoint, SM_ALLOC); 7218 load_concrete_ms_allocatable_trees(current, SM_FREE); 7219 7220 for (uint64_t i = 0; i < ckpoint_rvd->vdev_children; i++) { 7221 vdev_t *ckpoint_vd = ckpoint_rvd->vdev_child[i]; 7222 vdev_t *current_vd = current_rvd->vdev_child[i]; 7223 7224 if (ckpoint_vd->vdev_ops == &vdev_indirect_ops) { 7225 /* 7226 * See comment in verify_checkpoint_vdev_spacemaps() 7227 */ 7228 ASSERT3P(current_vd->vdev_ops, ==, &vdev_indirect_ops); 7229 continue; 7230 } 7231 7232 for (uint64_t m = 0; m < ckpoint_vd->vdev_ms_count; m++) { 7233 metaslab_t *ckpoint_msp = ckpoint_vd->vdev_ms[m]; 7234 metaslab_t *current_msp = current_vd->vdev_ms[m]; 7235 7236 (void) fprintf(stderr, 7237 "\rverifying vdev %llu of %llu, " 7238 "metaslab %llu of %llu ...", 7239 (longlong_t)current_vd->vdev_id, 7240 (longlong_t)current_rvd->vdev_children, 7241 (longlong_t)current_vd->vdev_ms[m]->ms_id, 7242 (longlong_t)current_vd->vdev_ms_count); 7243 7244 /* 7245 * We walk through the ms_allocatable trees that 7246 * are loaded with the allocated blocks from the 7247 * ms_sm spacemaps of the checkpoint. For each 7248 * one of these ranges we ensure that none of them 7249 * exists in the ms_allocatable trees of the 7250 * current state which are loaded with the ranges 7251 * that are currently free. 7252 * 7253 * This way we ensure that none of the blocks that 7254 * are part of the checkpoint were freed by mistake. 7255 */ 7256 range_tree_walk(ckpoint_msp->ms_allocatable, 7257 (range_tree_func_t *)range_tree_verify_not_present, 7258 current_msp->ms_allocatable); 7259 } 7260 } 7261 7262 /* for cleaner progress output */ 7263 (void) fprintf(stderr, "\n"); 7264 } 7265 7266 static void 7267 verify_checkpoint_blocks(spa_t *spa) 7268 { 7269 ASSERT(!dump_opt['L']); 7270 7271 spa_t *checkpoint_spa; 7272 char *checkpoint_pool; 7273 int error = 0; 7274 7275 /* 7276 * We import the checkpointed state of the pool (under a different 7277 * name) so we can do verification on it against the current state 7278 * of the pool. 7279 */ 7280 checkpoint_pool = import_checkpointed_state(spa->spa_name, NULL, 7281 NULL); 7282 ASSERT(strcmp(spa->spa_name, checkpoint_pool) != 0); 7283 7284 error = spa_open(checkpoint_pool, &checkpoint_spa, FTAG); 7285 if (error != 0) { 7286 fatal("Tried to open pool \"%s\" but spa_open() failed with " 7287 "error %d\n", checkpoint_pool, error); 7288 } 7289 7290 /* 7291 * Ensure that ranges in the checkpoint space maps of each vdev 7292 * are allocated according to the checkpointed state's metaslab 7293 * space maps. 7294 */ 7295 verify_checkpoint_vdev_spacemaps(checkpoint_spa, spa); 7296 7297 /* 7298 * Ensure that allocated ranges in the checkpoint's metaslab 7299 * space maps remain allocated in the metaslab space maps of 7300 * the current state. 7301 */ 7302 verify_checkpoint_ms_spacemaps(checkpoint_spa, spa); 7303 7304 /* 7305 * Once we are done, we get rid of the checkpointed state. 7306 */ 7307 spa_close(checkpoint_spa, FTAG); 7308 free(checkpoint_pool); 7309 } 7310 7311 static void 7312 dump_leftover_checkpoint_blocks(spa_t *spa) 7313 { 7314 vdev_t *rvd = spa->spa_root_vdev; 7315 7316 for (uint64_t i = 0; i < rvd->vdev_children; i++) { 7317 vdev_t *vd = rvd->vdev_child[i]; 7318 7319 space_map_t *checkpoint_sm = NULL; 7320 uint64_t checkpoint_sm_obj; 7321 7322 if (vd->vdev_top_zap == 0) 7323 continue; 7324 7325 if (zap_contains(spa_meta_objset(spa), vd->vdev_top_zap, 7326 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0) 7327 continue; 7328 7329 VERIFY0(zap_lookup(spa_meta_objset(spa), vd->vdev_top_zap, 7330 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, 7331 sizeof (uint64_t), 1, &checkpoint_sm_obj)); 7332 7333 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(spa), 7334 checkpoint_sm_obj, 0, vd->vdev_asize, vd->vdev_ashift)); 7335 dump_spacemap(spa->spa_meta_objset, checkpoint_sm); 7336 space_map_close(checkpoint_sm); 7337 } 7338 } 7339 7340 static int 7341 verify_checkpoint(spa_t *spa) 7342 { 7343 uberblock_t checkpoint; 7344 int error; 7345 7346 if (!spa_feature_is_active(spa, SPA_FEATURE_POOL_CHECKPOINT)) 7347 return (0); 7348 7349 error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, 7350 DMU_POOL_ZPOOL_CHECKPOINT, sizeof (uint64_t), 7351 sizeof (uberblock_t) / sizeof (uint64_t), &checkpoint); 7352 7353 if (error == ENOENT && !dump_opt['L']) { 7354 /* 7355 * If the feature is active but the uberblock is missing 7356 * then we must be in the middle of discarding the 7357 * checkpoint. 7358 */ 7359 (void) printf("\nPartially discarded checkpoint " 7360 "state found:\n"); 7361 if (dump_opt['m'] > 3) 7362 dump_leftover_checkpoint_blocks(spa); 7363 return (0); 7364 } else if (error != 0) { 7365 (void) printf("lookup error %d when looking for " 7366 "checkpointed uberblock in MOS\n", error); 7367 return (error); 7368 } 7369 dump_uberblock(&checkpoint, "\nCheckpointed uberblock found:\n", "\n"); 7370 7371 if (checkpoint.ub_checkpoint_txg == 0) { 7372 (void) printf("\nub_checkpoint_txg not set in checkpointed " 7373 "uberblock\n"); 7374 error = 3; 7375 } 7376 7377 if (error == 0 && !dump_opt['L']) 7378 verify_checkpoint_blocks(spa); 7379 7380 return (error); 7381 } 7382 7383 static void 7384 mos_leaks_cb(void *arg, uint64_t start, uint64_t size) 7385 { 7386 (void) arg; 7387 for (uint64_t i = start; i < size; i++) { 7388 (void) printf("MOS object %llu referenced but not allocated\n", 7389 (u_longlong_t)i); 7390 } 7391 } 7392 7393 static void 7394 mos_obj_refd(uint64_t obj) 7395 { 7396 if (obj != 0 && mos_refd_objs != NULL) 7397 range_tree_add(mos_refd_objs, obj, 1); 7398 } 7399 7400 /* 7401 * Call on a MOS object that may already have been referenced. 7402 */ 7403 static void 7404 mos_obj_refd_multiple(uint64_t obj) 7405 { 7406 if (obj != 0 && mos_refd_objs != NULL && 7407 !range_tree_contains(mos_refd_objs, obj, 1)) 7408 range_tree_add(mos_refd_objs, obj, 1); 7409 } 7410 7411 static void 7412 mos_leak_vdev_top_zap(vdev_t *vd) 7413 { 7414 uint64_t ms_flush_data_obj; 7415 int error = zap_lookup(spa_meta_objset(vd->vdev_spa), 7416 vd->vdev_top_zap, VDEV_TOP_ZAP_MS_UNFLUSHED_PHYS_TXGS, 7417 sizeof (ms_flush_data_obj), 1, &ms_flush_data_obj); 7418 if (error == ENOENT) 7419 return; 7420 ASSERT0(error); 7421 7422 mos_obj_refd(ms_flush_data_obj); 7423 } 7424 7425 static void 7426 mos_leak_vdev(vdev_t *vd) 7427 { 7428 mos_obj_refd(vd->vdev_dtl_object); 7429 mos_obj_refd(vd->vdev_ms_array); 7430 mos_obj_refd(vd->vdev_indirect_config.vic_births_object); 7431 mos_obj_refd(vd->vdev_indirect_config.vic_mapping_object); 7432 mos_obj_refd(vd->vdev_leaf_zap); 7433 if (vd->vdev_checkpoint_sm != NULL) 7434 mos_obj_refd(vd->vdev_checkpoint_sm->sm_object); 7435 if (vd->vdev_indirect_mapping != NULL) { 7436 mos_obj_refd(vd->vdev_indirect_mapping-> 7437 vim_phys->vimp_counts_object); 7438 } 7439 if (vd->vdev_obsolete_sm != NULL) 7440 mos_obj_refd(vd->vdev_obsolete_sm->sm_object); 7441 7442 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 7443 metaslab_t *ms = vd->vdev_ms[m]; 7444 mos_obj_refd(space_map_object(ms->ms_sm)); 7445 } 7446 7447 if (vd->vdev_top_zap != 0) { 7448 mos_obj_refd(vd->vdev_top_zap); 7449 mos_leak_vdev_top_zap(vd); 7450 } 7451 7452 for (uint64_t c = 0; c < vd->vdev_children; c++) { 7453 mos_leak_vdev(vd->vdev_child[c]); 7454 } 7455 } 7456 7457 static void 7458 mos_leak_log_spacemaps(spa_t *spa) 7459 { 7460 uint64_t spacemap_zap; 7461 int error = zap_lookup(spa_meta_objset(spa), 7462 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_LOG_SPACEMAP_ZAP, 7463 sizeof (spacemap_zap), 1, &spacemap_zap); 7464 if (error == ENOENT) 7465 return; 7466 ASSERT0(error); 7467 7468 mos_obj_refd(spacemap_zap); 7469 for (spa_log_sm_t *sls = avl_first(&spa->spa_sm_logs_by_txg); 7470 sls; sls = AVL_NEXT(&spa->spa_sm_logs_by_txg, sls)) 7471 mos_obj_refd(sls->sls_sm_obj); 7472 } 7473 7474 static int 7475 dump_mos_leaks(spa_t *spa) 7476 { 7477 int rv = 0; 7478 objset_t *mos = spa->spa_meta_objset; 7479 dsl_pool_t *dp = spa->spa_dsl_pool; 7480 7481 /* Visit and mark all referenced objects in the MOS */ 7482 7483 mos_obj_refd(DMU_POOL_DIRECTORY_OBJECT); 7484 mos_obj_refd(spa->spa_pool_props_object); 7485 mos_obj_refd(spa->spa_config_object); 7486 mos_obj_refd(spa->spa_ddt_stat_object); 7487 mos_obj_refd(spa->spa_feat_desc_obj); 7488 mos_obj_refd(spa->spa_feat_enabled_txg_obj); 7489 mos_obj_refd(spa->spa_feat_for_read_obj); 7490 mos_obj_refd(spa->spa_feat_for_write_obj); 7491 mos_obj_refd(spa->spa_history); 7492 mos_obj_refd(spa->spa_errlog_last); 7493 mos_obj_refd(spa->spa_errlog_scrub); 7494 mos_obj_refd(spa->spa_all_vdev_zaps); 7495 mos_obj_refd(spa->spa_dsl_pool->dp_bptree_obj); 7496 mos_obj_refd(spa->spa_dsl_pool->dp_tmp_userrefs_obj); 7497 mos_obj_refd(spa->spa_dsl_pool->dp_scan->scn_phys.scn_queue_obj); 7498 bpobj_count_refd(&spa->spa_deferred_bpobj); 7499 mos_obj_refd(dp->dp_empty_bpobj); 7500 bpobj_count_refd(&dp->dp_obsolete_bpobj); 7501 bpobj_count_refd(&dp->dp_free_bpobj); 7502 mos_obj_refd(spa->spa_l2cache.sav_object); 7503 mos_obj_refd(spa->spa_spares.sav_object); 7504 7505 if (spa->spa_syncing_log_sm != NULL) 7506 mos_obj_refd(spa->spa_syncing_log_sm->sm_object); 7507 mos_leak_log_spacemaps(spa); 7508 7509 mos_obj_refd(spa->spa_condensing_indirect_phys. 7510 scip_next_mapping_object); 7511 mos_obj_refd(spa->spa_condensing_indirect_phys. 7512 scip_prev_obsolete_sm_object); 7513 if (spa->spa_condensing_indirect_phys.scip_next_mapping_object != 0) { 7514 vdev_indirect_mapping_t *vim = 7515 vdev_indirect_mapping_open(mos, 7516 spa->spa_condensing_indirect_phys.scip_next_mapping_object); 7517 mos_obj_refd(vim->vim_phys->vimp_counts_object); 7518 vdev_indirect_mapping_close(vim); 7519 } 7520 deleted_livelists_dump_mos(spa); 7521 7522 if (dp->dp_origin_snap != NULL) { 7523 dsl_dataset_t *ds; 7524 7525 dsl_pool_config_enter(dp, FTAG); 7526 VERIFY0(dsl_dataset_hold_obj(dp, 7527 dsl_dataset_phys(dp->dp_origin_snap)->ds_next_snap_obj, 7528 FTAG, &ds)); 7529 count_ds_mos_objects(ds); 7530 dump_blkptr_list(&ds->ds_deadlist, "Deadlist"); 7531 dsl_dataset_rele(ds, FTAG); 7532 dsl_pool_config_exit(dp, FTAG); 7533 7534 count_ds_mos_objects(dp->dp_origin_snap); 7535 dump_blkptr_list(&dp->dp_origin_snap->ds_deadlist, "Deadlist"); 7536 } 7537 count_dir_mos_objects(dp->dp_mos_dir); 7538 if (dp->dp_free_dir != NULL) 7539 count_dir_mos_objects(dp->dp_free_dir); 7540 if (dp->dp_leak_dir != NULL) 7541 count_dir_mos_objects(dp->dp_leak_dir); 7542 7543 mos_leak_vdev(spa->spa_root_vdev); 7544 7545 for (uint64_t class = 0; class < DDT_CLASSES; class++) { 7546 for (uint64_t type = 0; type < DDT_TYPES; type++) { 7547 for (uint64_t cksum = 0; 7548 cksum < ZIO_CHECKSUM_FUNCTIONS; cksum++) { 7549 ddt_t *ddt = spa->spa_ddt[cksum]; 7550 mos_obj_refd(ddt->ddt_object[type][class]); 7551 } 7552 } 7553 } 7554 7555 /* 7556 * Visit all allocated objects and make sure they are referenced. 7557 */ 7558 uint64_t object = 0; 7559 while (dmu_object_next(mos, &object, B_FALSE, 0) == 0) { 7560 if (range_tree_contains(mos_refd_objs, object, 1)) { 7561 range_tree_remove(mos_refd_objs, object, 1); 7562 } else { 7563 dmu_object_info_t doi; 7564 const char *name; 7565 dmu_object_info(mos, object, &doi); 7566 if (doi.doi_type & DMU_OT_NEWTYPE) { 7567 dmu_object_byteswap_t bswap = 7568 DMU_OT_BYTESWAP(doi.doi_type); 7569 name = dmu_ot_byteswap[bswap].ob_name; 7570 } else { 7571 name = dmu_ot[doi.doi_type].ot_name; 7572 } 7573 7574 (void) printf("MOS object %llu (%s) leaked\n", 7575 (u_longlong_t)object, name); 7576 rv = 2; 7577 } 7578 } 7579 (void) range_tree_walk(mos_refd_objs, mos_leaks_cb, NULL); 7580 if (!range_tree_is_empty(mos_refd_objs)) 7581 rv = 2; 7582 range_tree_vacate(mos_refd_objs, NULL, NULL); 7583 range_tree_destroy(mos_refd_objs); 7584 return (rv); 7585 } 7586 7587 typedef struct log_sm_obsolete_stats_arg { 7588 uint64_t lsos_current_txg; 7589 7590 uint64_t lsos_total_entries; 7591 uint64_t lsos_valid_entries; 7592 7593 uint64_t lsos_sm_entries; 7594 uint64_t lsos_valid_sm_entries; 7595 } log_sm_obsolete_stats_arg_t; 7596 7597 static int 7598 log_spacemap_obsolete_stats_cb(spa_t *spa, space_map_entry_t *sme, 7599 uint64_t txg, void *arg) 7600 { 7601 log_sm_obsolete_stats_arg_t *lsos = arg; 7602 7603 uint64_t offset = sme->sme_offset; 7604 uint64_t vdev_id = sme->sme_vdev; 7605 7606 if (lsos->lsos_current_txg == 0) { 7607 /* this is the first log */ 7608 lsos->lsos_current_txg = txg; 7609 } else if (lsos->lsos_current_txg < txg) { 7610 /* we just changed log - print stats and reset */ 7611 (void) printf("%-8llu valid entries out of %-8llu - txg %llu\n", 7612 (u_longlong_t)lsos->lsos_valid_sm_entries, 7613 (u_longlong_t)lsos->lsos_sm_entries, 7614 (u_longlong_t)lsos->lsos_current_txg); 7615 lsos->lsos_valid_sm_entries = 0; 7616 lsos->lsos_sm_entries = 0; 7617 lsos->lsos_current_txg = txg; 7618 } 7619 ASSERT3U(lsos->lsos_current_txg, ==, txg); 7620 7621 lsos->lsos_sm_entries++; 7622 lsos->lsos_total_entries++; 7623 7624 vdev_t *vd = vdev_lookup_top(spa, vdev_id); 7625 if (!vdev_is_concrete(vd)) 7626 return (0); 7627 7628 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 7629 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE); 7630 7631 if (txg < metaslab_unflushed_txg(ms)) 7632 return (0); 7633 lsos->lsos_valid_sm_entries++; 7634 lsos->lsos_valid_entries++; 7635 return (0); 7636 } 7637 7638 static void 7639 dump_log_spacemap_obsolete_stats(spa_t *spa) 7640 { 7641 if (!spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP)) 7642 return; 7643 7644 log_sm_obsolete_stats_arg_t lsos = {0}; 7645 7646 (void) printf("Log Space Map Obsolete Entry Statistics:\n"); 7647 7648 iterate_through_spacemap_logs(spa, 7649 log_spacemap_obsolete_stats_cb, &lsos); 7650 7651 /* print stats for latest log */ 7652 (void) printf("%-8llu valid entries out of %-8llu - txg %llu\n", 7653 (u_longlong_t)lsos.lsos_valid_sm_entries, 7654 (u_longlong_t)lsos.lsos_sm_entries, 7655 (u_longlong_t)lsos.lsos_current_txg); 7656 7657 (void) printf("%-8llu valid entries out of %-8llu - total\n\n", 7658 (u_longlong_t)lsos.lsos_valid_entries, 7659 (u_longlong_t)lsos.lsos_total_entries); 7660 } 7661 7662 static void 7663 dump_zpool(spa_t *spa) 7664 { 7665 dsl_pool_t *dp = spa_get_dsl(spa); 7666 int rc = 0; 7667 7668 if (dump_opt['y']) { 7669 livelist_metaslab_validate(spa); 7670 } 7671 7672 if (dump_opt['S']) { 7673 dump_simulated_ddt(spa); 7674 return; 7675 } 7676 7677 if (!dump_opt['e'] && dump_opt['C'] > 1) { 7678 (void) printf("\nCached configuration:\n"); 7679 dump_nvlist(spa->spa_config, 8); 7680 } 7681 7682 if (dump_opt['C']) 7683 dump_config(spa); 7684 7685 if (dump_opt['u']) 7686 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 7687 7688 if (dump_opt['D']) 7689 dump_all_ddts(spa); 7690 7691 if (dump_opt['d'] > 2 || dump_opt['m']) 7692 dump_metaslabs(spa); 7693 if (dump_opt['M']) 7694 dump_metaslab_groups(spa, dump_opt['M'] > 1); 7695 if (dump_opt['d'] > 2 || dump_opt['m']) { 7696 dump_log_spacemaps(spa); 7697 dump_log_spacemap_obsolete_stats(spa); 7698 } 7699 7700 if (dump_opt['d'] || dump_opt['i']) { 7701 spa_feature_t f; 7702 mos_refd_objs = range_tree_create(NULL, RANGE_SEG64, NULL, 0, 7703 0); 7704 dump_objset(dp->dp_meta_objset); 7705 7706 if (dump_opt['d'] >= 3) { 7707 dsl_pool_t *dp = spa->spa_dsl_pool; 7708 dump_full_bpobj(&spa->spa_deferred_bpobj, 7709 "Deferred frees", 0); 7710 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 7711 dump_full_bpobj(&dp->dp_free_bpobj, 7712 "Pool snapshot frees", 0); 7713 } 7714 if (bpobj_is_open(&dp->dp_obsolete_bpobj)) { 7715 ASSERT(spa_feature_is_enabled(spa, 7716 SPA_FEATURE_DEVICE_REMOVAL)); 7717 dump_full_bpobj(&dp->dp_obsolete_bpobj, 7718 "Pool obsolete blocks", 0); 7719 } 7720 7721 if (spa_feature_is_active(spa, 7722 SPA_FEATURE_ASYNC_DESTROY)) { 7723 dump_bptree(spa->spa_meta_objset, 7724 dp->dp_bptree_obj, 7725 "Pool dataset frees"); 7726 } 7727 dump_dtl(spa->spa_root_vdev, 0); 7728 } 7729 7730 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) 7731 global_feature_count[f] = UINT64_MAX; 7732 global_feature_count[SPA_FEATURE_REDACTION_BOOKMARKS] = 0; 7733 global_feature_count[SPA_FEATURE_BOOKMARK_WRITTEN] = 0; 7734 global_feature_count[SPA_FEATURE_LIVELIST] = 0; 7735 7736 (void) dmu_objset_find(spa_name(spa), dump_one_objset, 7737 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 7738 7739 if (rc == 0 && !dump_opt['L']) 7740 rc = dump_mos_leaks(spa); 7741 7742 for (f = 0; f < SPA_FEATURES; f++) { 7743 uint64_t refcount; 7744 7745 uint64_t *arr; 7746 if (!(spa_feature_table[f].fi_flags & 7747 ZFEATURE_FLAG_PER_DATASET)) { 7748 if (global_feature_count[f] == UINT64_MAX) 7749 continue; 7750 if (!spa_feature_is_enabled(spa, f)) { 7751 ASSERT0(global_feature_count[f]); 7752 continue; 7753 } 7754 arr = global_feature_count; 7755 } else { 7756 if (!spa_feature_is_enabled(spa, f)) { 7757 ASSERT0(dataset_feature_count[f]); 7758 continue; 7759 } 7760 arr = dataset_feature_count; 7761 } 7762 if (feature_get_refcount(spa, &spa_feature_table[f], 7763 &refcount) == ENOTSUP) 7764 continue; 7765 if (arr[f] != refcount) { 7766 (void) printf("%s feature refcount mismatch: " 7767 "%lld consumers != %lld refcount\n", 7768 spa_feature_table[f].fi_uname, 7769 (longlong_t)arr[f], (longlong_t)refcount); 7770 rc = 2; 7771 } else { 7772 (void) printf("Verified %s feature refcount " 7773 "of %llu is correct\n", 7774 spa_feature_table[f].fi_uname, 7775 (longlong_t)refcount); 7776 } 7777 } 7778 7779 if (rc == 0) 7780 rc = verify_device_removal_feature_counts(spa); 7781 } 7782 7783 if (rc == 0 && (dump_opt['b'] || dump_opt['c'])) 7784 rc = dump_block_stats(spa); 7785 7786 if (rc == 0) 7787 rc = verify_spacemap_refcounts(spa); 7788 7789 if (dump_opt['s']) 7790 show_pool_stats(spa); 7791 7792 if (dump_opt['h']) 7793 dump_history(spa); 7794 7795 if (rc == 0) 7796 rc = verify_checkpoint(spa); 7797 7798 if (rc != 0) { 7799 dump_debug_buffer(); 7800 exit(rc); 7801 } 7802 } 7803 7804 #define ZDB_FLAG_CHECKSUM 0x0001 7805 #define ZDB_FLAG_DECOMPRESS 0x0002 7806 #define ZDB_FLAG_BSWAP 0x0004 7807 #define ZDB_FLAG_GBH 0x0008 7808 #define ZDB_FLAG_INDIRECT 0x0010 7809 #define ZDB_FLAG_RAW 0x0020 7810 #define ZDB_FLAG_PRINT_BLKPTR 0x0040 7811 #define ZDB_FLAG_VERBOSE 0x0080 7812 7813 static int flagbits[256]; 7814 static char flagbitstr[16]; 7815 7816 static void 7817 zdb_print_blkptr(const blkptr_t *bp, int flags) 7818 { 7819 char blkbuf[BP_SPRINTF_LEN]; 7820 7821 if (flags & ZDB_FLAG_BSWAP) 7822 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 7823 7824 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 7825 (void) printf("%s\n", blkbuf); 7826 } 7827 7828 static void 7829 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 7830 { 7831 int i; 7832 7833 for (i = 0; i < nbps; i++) 7834 zdb_print_blkptr(&bp[i], flags); 7835 } 7836 7837 static void 7838 zdb_dump_gbh(void *buf, int flags) 7839 { 7840 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 7841 } 7842 7843 static void 7844 zdb_dump_block_raw(void *buf, uint64_t size, int flags) 7845 { 7846 if (flags & ZDB_FLAG_BSWAP) 7847 byteswap_uint64_array(buf, size); 7848 VERIFY(write(fileno(stdout), buf, size) == size); 7849 } 7850 7851 static void 7852 zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 7853 { 7854 uint64_t *d = (uint64_t *)buf; 7855 unsigned nwords = size / sizeof (uint64_t); 7856 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 7857 unsigned i, j; 7858 const char *hdr; 7859 char *c; 7860 7861 7862 if (do_bswap) 7863 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 7864 else 7865 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 7866 7867 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 7868 7869 #ifdef _LITTLE_ENDIAN 7870 /* correct the endianness */ 7871 do_bswap = !do_bswap; 7872 #endif 7873 for (i = 0; i < nwords; i += 2) { 7874 (void) printf("%06llx: %016llx %016llx ", 7875 (u_longlong_t)(i * sizeof (uint64_t)), 7876 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 7877 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 7878 7879 c = (char *)&d[i]; 7880 for (j = 0; j < 2 * sizeof (uint64_t); j++) 7881 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 7882 (void) printf("\n"); 7883 } 7884 } 7885 7886 /* 7887 * There are two acceptable formats: 7888 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 7889 * child[.child]* - For example: 0.1.1 7890 * 7891 * The second form can be used to specify arbitrary vdevs anywhere 7892 * in the hierarchy. For example, in a pool with a mirror of 7893 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 7894 */ 7895 static vdev_t * 7896 zdb_vdev_lookup(vdev_t *vdev, const char *path) 7897 { 7898 char *s, *p, *q; 7899 unsigned i; 7900 7901 if (vdev == NULL) 7902 return (NULL); 7903 7904 /* First, assume the x.x.x.x format */ 7905 i = strtoul(path, &s, 10); 7906 if (s == path || (s && *s != '.' && *s != '\0')) 7907 goto name; 7908 if (i >= vdev->vdev_children) 7909 return (NULL); 7910 7911 vdev = vdev->vdev_child[i]; 7912 if (s && *s == '\0') 7913 return (vdev); 7914 return (zdb_vdev_lookup(vdev, s+1)); 7915 7916 name: 7917 for (i = 0; i < vdev->vdev_children; i++) { 7918 vdev_t *vc = vdev->vdev_child[i]; 7919 7920 if (vc->vdev_path == NULL) { 7921 vc = zdb_vdev_lookup(vc, path); 7922 if (vc == NULL) 7923 continue; 7924 else 7925 return (vc); 7926 } 7927 7928 p = strrchr(vc->vdev_path, '/'); 7929 p = p ? p + 1 : vc->vdev_path; 7930 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 7931 7932 if (strcmp(vc->vdev_path, path) == 0) 7933 return (vc); 7934 if (strcmp(p, path) == 0) 7935 return (vc); 7936 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 7937 return (vc); 7938 } 7939 7940 return (NULL); 7941 } 7942 7943 static int 7944 name_from_objset_id(spa_t *spa, uint64_t objset_id, char *outstr) 7945 { 7946 dsl_dataset_t *ds; 7947 7948 dsl_pool_config_enter(spa->spa_dsl_pool, FTAG); 7949 int error = dsl_dataset_hold_obj(spa->spa_dsl_pool, objset_id, 7950 NULL, &ds); 7951 if (error != 0) { 7952 (void) fprintf(stderr, "failed to hold objset %llu: %s\n", 7953 (u_longlong_t)objset_id, strerror(error)); 7954 dsl_pool_config_exit(spa->spa_dsl_pool, FTAG); 7955 return (error); 7956 } 7957 dsl_dataset_name(ds, outstr); 7958 dsl_dataset_rele(ds, NULL); 7959 dsl_pool_config_exit(spa->spa_dsl_pool, FTAG); 7960 return (0); 7961 } 7962 7963 static boolean_t 7964 zdb_parse_block_sizes(char *sizes, uint64_t *lsize, uint64_t *psize) 7965 { 7966 char *s0, *s1, *tmp = NULL; 7967 7968 if (sizes == NULL) 7969 return (B_FALSE); 7970 7971 s0 = strtok_r(sizes, "/", &tmp); 7972 if (s0 == NULL) 7973 return (B_FALSE); 7974 s1 = strtok_r(NULL, "/", &tmp); 7975 *lsize = strtoull(s0, NULL, 16); 7976 *psize = s1 ? strtoull(s1, NULL, 16) : *lsize; 7977 return (*lsize >= *psize && *psize > 0); 7978 } 7979 7980 #define ZIO_COMPRESS_MASK(alg) (1ULL << (ZIO_COMPRESS_##alg)) 7981 7982 static boolean_t 7983 zdb_decompress_block(abd_t *pabd, void *buf, void *lbuf, uint64_t lsize, 7984 uint64_t psize, int flags) 7985 { 7986 (void) buf; 7987 boolean_t exceeded = B_FALSE; 7988 /* 7989 * We don't know how the data was compressed, so just try 7990 * every decompress function at every inflated blocksize. 7991 */ 7992 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 7993 int cfuncs[ZIO_COMPRESS_FUNCTIONS] = { 0 }; 7994 int *cfuncp = cfuncs; 7995 uint64_t maxlsize = SPA_MAXBLOCKSIZE; 7996 uint64_t mask = ZIO_COMPRESS_MASK(ON) | ZIO_COMPRESS_MASK(OFF) | 7997 ZIO_COMPRESS_MASK(INHERIT) | ZIO_COMPRESS_MASK(EMPTY) | 7998 (getenv("ZDB_NO_ZLE") ? ZIO_COMPRESS_MASK(ZLE) : 0); 7999 *cfuncp++ = ZIO_COMPRESS_LZ4; 8000 *cfuncp++ = ZIO_COMPRESS_LZJB; 8001 mask |= ZIO_COMPRESS_MASK(LZ4) | ZIO_COMPRESS_MASK(LZJB); 8002 for (int c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) 8003 if (((1ULL << c) & mask) == 0) 8004 *cfuncp++ = c; 8005 8006 /* 8007 * On the one hand, with SPA_MAXBLOCKSIZE at 16MB, this 8008 * could take a while and we should let the user know 8009 * we are not stuck. On the other hand, printing progress 8010 * info gets old after a while. User can specify 'v' flag 8011 * to see the progression. 8012 */ 8013 if (lsize == psize) 8014 lsize += SPA_MINBLOCKSIZE; 8015 else 8016 maxlsize = lsize; 8017 for (; lsize <= maxlsize; lsize += SPA_MINBLOCKSIZE) { 8018 for (cfuncp = cfuncs; *cfuncp; cfuncp++) { 8019 if (flags & ZDB_FLAG_VERBOSE) { 8020 (void) fprintf(stderr, 8021 "Trying %05llx -> %05llx (%s)\n", 8022 (u_longlong_t)psize, 8023 (u_longlong_t)lsize, 8024 zio_compress_table[*cfuncp].\ 8025 ci_name); 8026 } 8027 8028 /* 8029 * We randomize lbuf2, and decompress to both 8030 * lbuf and lbuf2. This way, we will know if 8031 * decompression fill exactly to lsize. 8032 */ 8033 VERIFY0(random_get_pseudo_bytes(lbuf2, lsize)); 8034 8035 if (zio_decompress_data(*cfuncp, pabd, 8036 lbuf, psize, lsize, NULL) == 0 && 8037 zio_decompress_data(*cfuncp, pabd, 8038 lbuf2, psize, lsize, NULL) == 0 && 8039 memcmp(lbuf, lbuf2, lsize) == 0) 8040 break; 8041 } 8042 if (*cfuncp != 0) 8043 break; 8044 } 8045 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 8046 8047 if (lsize > maxlsize) { 8048 exceeded = B_TRUE; 8049 } 8050 if (*cfuncp == ZIO_COMPRESS_ZLE) { 8051 printf("\nZLE decompression was selected. If you " 8052 "suspect the results are wrong,\ntry avoiding ZLE " 8053 "by setting and exporting ZDB_NO_ZLE=\"true\"\n"); 8054 } 8055 8056 return (exceeded); 8057 } 8058 8059 /* 8060 * Read a block from a pool and print it out. The syntax of the 8061 * block descriptor is: 8062 * 8063 * pool:vdev_specifier:offset:[lsize/]psize[:flags] 8064 * 8065 * pool - The name of the pool you wish to read from 8066 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 8067 * offset - offset, in hex, in bytes 8068 * size - Amount of data to read, in hex, in bytes 8069 * flags - A string of characters specifying options 8070 * b: Decode a blkptr at given offset within block 8071 * c: Calculate and display checksums 8072 * d: Decompress data before dumping 8073 * e: Byteswap data before dumping 8074 * g: Display data as a gang block header 8075 * i: Display as an indirect block 8076 * r: Dump raw data to stdout 8077 * v: Verbose 8078 * 8079 */ 8080 static void 8081 zdb_read_block(char *thing, spa_t *spa) 8082 { 8083 blkptr_t blk, *bp = &blk; 8084 dva_t *dva = bp->blk_dva; 8085 int flags = 0; 8086 uint64_t offset = 0, psize = 0, lsize = 0, blkptr_offset = 0; 8087 zio_t *zio; 8088 vdev_t *vd; 8089 abd_t *pabd; 8090 void *lbuf, *buf; 8091 char *s, *p, *dup, *vdev, *flagstr, *sizes, *tmp = NULL; 8092 int i, error; 8093 boolean_t borrowed = B_FALSE, found = B_FALSE; 8094 8095 dup = strdup(thing); 8096 s = strtok_r(dup, ":", &tmp); 8097 vdev = s ? s : ""; 8098 s = strtok_r(NULL, ":", &tmp); 8099 offset = strtoull(s ? s : "", NULL, 16); 8100 sizes = strtok_r(NULL, ":", &tmp); 8101 s = strtok_r(NULL, ":", &tmp); 8102 flagstr = strdup(s ? s : ""); 8103 8104 s = NULL; 8105 tmp = NULL; 8106 if (!zdb_parse_block_sizes(sizes, &lsize, &psize)) 8107 s = "invalid size(s)"; 8108 if (!IS_P2ALIGNED(psize, DEV_BSIZE) || !IS_P2ALIGNED(lsize, DEV_BSIZE)) 8109 s = "size must be a multiple of sector size"; 8110 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 8111 s = "offset must be a multiple of sector size"; 8112 if (s) { 8113 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 8114 goto done; 8115 } 8116 8117 for (s = strtok_r(flagstr, ":", &tmp); 8118 s != NULL; 8119 s = strtok_r(NULL, ":", &tmp)) { 8120 for (i = 0; i < strlen(flagstr); i++) { 8121 int bit = flagbits[(uchar_t)flagstr[i]]; 8122 8123 if (bit == 0) { 8124 (void) printf("***Ignoring flag: %c\n", 8125 (uchar_t)flagstr[i]); 8126 continue; 8127 } 8128 found = B_TRUE; 8129 flags |= bit; 8130 8131 p = &flagstr[i + 1]; 8132 if (*p != ':' && *p != '\0') { 8133 int j = 0, nextbit = flagbits[(uchar_t)*p]; 8134 char *end, offstr[8] = { 0 }; 8135 if ((bit == ZDB_FLAG_PRINT_BLKPTR) && 8136 (nextbit == 0)) { 8137 /* look ahead to isolate the offset */ 8138 while (nextbit == 0 && 8139 strchr(flagbitstr, *p) == NULL) { 8140 offstr[j] = *p; 8141 j++; 8142 if (i + j > strlen(flagstr)) 8143 break; 8144 p++; 8145 nextbit = flagbits[(uchar_t)*p]; 8146 } 8147 blkptr_offset = strtoull(offstr, &end, 8148 16); 8149 i += j; 8150 } else if (nextbit == 0) { 8151 (void) printf("***Ignoring flag arg:" 8152 " '%c'\n", (uchar_t)*p); 8153 } 8154 } 8155 } 8156 } 8157 if (blkptr_offset % sizeof (blkptr_t)) { 8158 printf("Block pointer offset 0x%llx " 8159 "must be divisible by 0x%x\n", 8160 (longlong_t)blkptr_offset, (int)sizeof (blkptr_t)); 8161 goto done; 8162 } 8163 if (found == B_FALSE && strlen(flagstr) > 0) { 8164 printf("Invalid flag arg: '%s'\n", flagstr); 8165 goto done; 8166 } 8167 8168 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 8169 if (vd == NULL) { 8170 (void) printf("***Invalid vdev: %s\n", vdev); 8171 free(dup); 8172 return; 8173 } else { 8174 if (vd->vdev_path) 8175 (void) fprintf(stderr, "Found vdev: %s\n", 8176 vd->vdev_path); 8177 else 8178 (void) fprintf(stderr, "Found vdev type: %s\n", 8179 vd->vdev_ops->vdev_op_type); 8180 } 8181 8182 pabd = abd_alloc_for_io(SPA_MAXBLOCKSIZE, B_FALSE); 8183 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 8184 8185 BP_ZERO(bp); 8186 8187 DVA_SET_VDEV(&dva[0], vd->vdev_id); 8188 DVA_SET_OFFSET(&dva[0], offset); 8189 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 8190 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 8191 8192 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 8193 8194 BP_SET_LSIZE(bp, lsize); 8195 BP_SET_PSIZE(bp, psize); 8196 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 8197 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 8198 BP_SET_TYPE(bp, DMU_OT_NONE); 8199 BP_SET_LEVEL(bp, 0); 8200 BP_SET_DEDUP(bp, 0); 8201 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 8202 8203 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 8204 zio = zio_root(spa, NULL, NULL, 0); 8205 8206 if (vd == vd->vdev_top) { 8207 /* 8208 * Treat this as a normal block read. 8209 */ 8210 zio_nowait(zio_read(zio, spa, bp, pabd, psize, NULL, NULL, 8211 ZIO_PRIORITY_SYNC_READ, 8212 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 8213 } else { 8214 /* 8215 * Treat this as a vdev child I/O. 8216 */ 8217 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pabd, 8218 psize, ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 8219 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_PROPAGATE | 8220 ZIO_FLAG_DONT_RETRY | ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW | 8221 ZIO_FLAG_OPTIONAL, NULL, NULL)); 8222 } 8223 8224 error = zio_wait(zio); 8225 spa_config_exit(spa, SCL_STATE, FTAG); 8226 8227 if (error) { 8228 (void) printf("Read of %s failed, error: %d\n", thing, error); 8229 goto out; 8230 } 8231 8232 uint64_t orig_lsize = lsize; 8233 buf = lbuf; 8234 if (flags & ZDB_FLAG_DECOMPRESS) { 8235 boolean_t failed = zdb_decompress_block(pabd, buf, lbuf, 8236 lsize, psize, flags); 8237 if (failed) { 8238 (void) printf("Decompress of %s failed\n", thing); 8239 goto out; 8240 } 8241 } else { 8242 buf = abd_borrow_buf_copy(pabd, lsize); 8243 borrowed = B_TRUE; 8244 } 8245 /* 8246 * Try to detect invalid block pointer. If invalid, try 8247 * decompressing. 8248 */ 8249 if ((flags & ZDB_FLAG_PRINT_BLKPTR || flags & ZDB_FLAG_INDIRECT) && 8250 !(flags & ZDB_FLAG_DECOMPRESS)) { 8251 const blkptr_t *b = (const blkptr_t *)(void *) 8252 ((uintptr_t)buf + (uintptr_t)blkptr_offset); 8253 if (zfs_blkptr_verify(spa, b, B_FALSE, BLK_VERIFY_ONLY) == 8254 B_FALSE) { 8255 abd_return_buf_copy(pabd, buf, lsize); 8256 borrowed = B_FALSE; 8257 buf = lbuf; 8258 boolean_t failed = zdb_decompress_block(pabd, buf, 8259 lbuf, lsize, psize, flags); 8260 b = (const blkptr_t *)(void *) 8261 ((uintptr_t)buf + (uintptr_t)blkptr_offset); 8262 if (failed || zfs_blkptr_verify(spa, b, B_FALSE, 8263 BLK_VERIFY_LOG) == B_FALSE) { 8264 printf("invalid block pointer at this DVA\n"); 8265 goto out; 8266 } 8267 } 8268 } 8269 8270 if (flags & ZDB_FLAG_PRINT_BLKPTR) 8271 zdb_print_blkptr((blkptr_t *)(void *) 8272 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 8273 else if (flags & ZDB_FLAG_RAW) 8274 zdb_dump_block_raw(buf, lsize, flags); 8275 else if (flags & ZDB_FLAG_INDIRECT) 8276 zdb_dump_indirect((blkptr_t *)buf, 8277 orig_lsize / sizeof (blkptr_t), flags); 8278 else if (flags & ZDB_FLAG_GBH) 8279 zdb_dump_gbh(buf, flags); 8280 else 8281 zdb_dump_block(thing, buf, lsize, flags); 8282 8283 /* 8284 * If :c was specified, iterate through the checksum table to 8285 * calculate and display each checksum for our specified 8286 * DVA and length. 8287 */ 8288 if ((flags & ZDB_FLAG_CHECKSUM) && !(flags & ZDB_FLAG_RAW) && 8289 !(flags & ZDB_FLAG_GBH)) { 8290 zio_t *czio; 8291 (void) printf("\n"); 8292 for (enum zio_checksum ck = ZIO_CHECKSUM_LABEL; 8293 ck < ZIO_CHECKSUM_FUNCTIONS; ck++) { 8294 8295 if ((zio_checksum_table[ck].ci_flags & 8296 ZCHECKSUM_FLAG_EMBEDDED) || 8297 ck == ZIO_CHECKSUM_NOPARITY) { 8298 continue; 8299 } 8300 BP_SET_CHECKSUM(bp, ck); 8301 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 8302 czio = zio_root(spa, NULL, NULL, ZIO_FLAG_CANFAIL); 8303 czio->io_bp = bp; 8304 8305 if (vd == vd->vdev_top) { 8306 zio_nowait(zio_read(czio, spa, bp, pabd, psize, 8307 NULL, NULL, 8308 ZIO_PRIORITY_SYNC_READ, 8309 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW | 8310 ZIO_FLAG_DONT_RETRY, NULL)); 8311 } else { 8312 zio_nowait(zio_vdev_child_io(czio, bp, vd, 8313 offset, pabd, psize, ZIO_TYPE_READ, 8314 ZIO_PRIORITY_SYNC_READ, 8315 ZIO_FLAG_DONT_CACHE | 8316 ZIO_FLAG_DONT_PROPAGATE | 8317 ZIO_FLAG_DONT_RETRY | 8318 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW | 8319 ZIO_FLAG_SPECULATIVE | 8320 ZIO_FLAG_OPTIONAL, NULL, NULL)); 8321 } 8322 error = zio_wait(czio); 8323 if (error == 0 || error == ECKSUM) { 8324 zio_t *ck_zio = zio_root(spa, NULL, NULL, 0); 8325 ck_zio->io_offset = 8326 DVA_GET_OFFSET(&bp->blk_dva[0]); 8327 ck_zio->io_bp = bp; 8328 zio_checksum_compute(ck_zio, ck, pabd, lsize); 8329 printf("%12s\tcksum=%llx:%llx:%llx:%llx\n", 8330 zio_checksum_table[ck].ci_name, 8331 (u_longlong_t)bp->blk_cksum.zc_word[0], 8332 (u_longlong_t)bp->blk_cksum.zc_word[1], 8333 (u_longlong_t)bp->blk_cksum.zc_word[2], 8334 (u_longlong_t)bp->blk_cksum.zc_word[3]); 8335 zio_wait(ck_zio); 8336 } else { 8337 printf("error %d reading block\n", error); 8338 } 8339 spa_config_exit(spa, SCL_STATE, FTAG); 8340 } 8341 } 8342 8343 if (borrowed) 8344 abd_return_buf_copy(pabd, buf, lsize); 8345 8346 out: 8347 abd_free(pabd); 8348 umem_free(lbuf, SPA_MAXBLOCKSIZE); 8349 done: 8350 free(flagstr); 8351 free(dup); 8352 } 8353 8354 static void 8355 zdb_embedded_block(char *thing) 8356 { 8357 blkptr_t bp = {{{{0}}}}; 8358 unsigned long long *words = (void *)&bp; 8359 char *buf; 8360 int err; 8361 8362 err = sscanf(thing, "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx:" 8363 "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx", 8364 words + 0, words + 1, words + 2, words + 3, 8365 words + 4, words + 5, words + 6, words + 7, 8366 words + 8, words + 9, words + 10, words + 11, 8367 words + 12, words + 13, words + 14, words + 15); 8368 if (err != 16) { 8369 (void) fprintf(stderr, "invalid input format\n"); 8370 exit(1); 8371 } 8372 ASSERT3U(BPE_GET_LSIZE(&bp), <=, SPA_MAXBLOCKSIZE); 8373 buf = malloc(SPA_MAXBLOCKSIZE); 8374 if (buf == NULL) { 8375 (void) fprintf(stderr, "out of memory\n"); 8376 exit(1); 8377 } 8378 err = decode_embedded_bp(&bp, buf, BPE_GET_LSIZE(&bp)); 8379 if (err != 0) { 8380 (void) fprintf(stderr, "decode failed: %u\n", err); 8381 exit(1); 8382 } 8383 zdb_dump_block_raw(buf, BPE_GET_LSIZE(&bp), 0); 8384 free(buf); 8385 } 8386 8387 /* check for valid hex or decimal numeric string */ 8388 static boolean_t 8389 zdb_numeric(char *str) 8390 { 8391 int i = 0; 8392 8393 if (strlen(str) == 0) 8394 return (B_FALSE); 8395 if (strncmp(str, "0x", 2) == 0 || strncmp(str, "0X", 2) == 0) 8396 i = 2; 8397 for (; i < strlen(str); i++) { 8398 if (!isxdigit(str[i])) 8399 return (B_FALSE); 8400 } 8401 return (B_TRUE); 8402 } 8403 8404 int 8405 main(int argc, char **argv) 8406 { 8407 int c; 8408 struct rlimit rl = { 1024, 1024 }; 8409 spa_t *spa = NULL; 8410 objset_t *os = NULL; 8411 int dump_all = 1; 8412 int verbose = 0; 8413 int error = 0; 8414 char **searchdirs = NULL; 8415 int nsearch = 0; 8416 char *target, *target_pool, dsname[ZFS_MAX_DATASET_NAME_LEN]; 8417 nvlist_t *policy = NULL; 8418 uint64_t max_txg = UINT64_MAX; 8419 int64_t objset_id = -1; 8420 uint64_t object; 8421 int flags = ZFS_IMPORT_MISSING_LOG; 8422 int rewind = ZPOOL_NEVER_REWIND; 8423 char *spa_config_path_env, *objset_str; 8424 boolean_t target_is_spa = B_TRUE, dataset_lookup = B_FALSE; 8425 nvlist_t *cfg = NULL; 8426 8427 (void) setrlimit(RLIMIT_NOFILE, &rl); 8428 (void) enable_extended_FILE_stdio(-1, -1); 8429 8430 dprintf_setup(&argc, argv); 8431 8432 /* 8433 * If there is an environment variable SPA_CONFIG_PATH it overrides 8434 * default spa_config_path setting. If -U flag is specified it will 8435 * override this environment variable settings once again. 8436 */ 8437 spa_config_path_env = getenv("SPA_CONFIG_PATH"); 8438 if (spa_config_path_env != NULL) 8439 spa_config_path = spa_config_path_env; 8440 8441 /* 8442 * For performance reasons, we set this tunable down. We do so before 8443 * the arg parsing section so that the user can override this value if 8444 * they choose. 8445 */ 8446 zfs_btree_verify_intensity = 3; 8447 8448 struct option long_options[] = { 8449 {"ignore-assertions", no_argument, NULL, 'A'}, 8450 {"block-stats", no_argument, NULL, 'b'}, 8451 {"checksum", no_argument, NULL, 'c'}, 8452 {"config", no_argument, NULL, 'C'}, 8453 {"datasets", no_argument, NULL, 'd'}, 8454 {"dedup-stats", no_argument, NULL, 'D'}, 8455 {"exported", no_argument, NULL, 'e'}, 8456 {"embedded-block-pointer", no_argument, NULL, 'E'}, 8457 {"automatic-rewind", no_argument, NULL, 'F'}, 8458 {"dump-debug-msg", no_argument, NULL, 'G'}, 8459 {"history", no_argument, NULL, 'h'}, 8460 {"intent-logs", no_argument, NULL, 'i'}, 8461 {"inflight", required_argument, NULL, 'I'}, 8462 {"checkpointed-state", no_argument, NULL, 'k'}, 8463 {"label", no_argument, NULL, 'l'}, 8464 {"disable-leak-tracking", no_argument, NULL, 'L'}, 8465 {"metaslabs", no_argument, NULL, 'm'}, 8466 {"metaslab-groups", no_argument, NULL, 'M'}, 8467 {"numeric", no_argument, NULL, 'N'}, 8468 {"option", required_argument, NULL, 'o'}, 8469 {"object-lookups", no_argument, NULL, 'O'}, 8470 {"path", required_argument, NULL, 'p'}, 8471 {"parseable", no_argument, NULL, 'P'}, 8472 {"skip-label", no_argument, NULL, 'q'}, 8473 {"copy-object", no_argument, NULL, 'r'}, 8474 {"read-block", no_argument, NULL, 'R'}, 8475 {"io-stats", no_argument, NULL, 's'}, 8476 {"simulate-dedup", no_argument, NULL, 'S'}, 8477 {"txg", required_argument, NULL, 't'}, 8478 {"uberblock", no_argument, NULL, 'u'}, 8479 {"cachefile", required_argument, NULL, 'U'}, 8480 {"verbose", no_argument, NULL, 'v'}, 8481 {"verbatim", no_argument, NULL, 'V'}, 8482 {"dump-blocks", required_argument, NULL, 'x'}, 8483 {"extreme-rewind", no_argument, NULL, 'X'}, 8484 {"all-reconstruction", no_argument, NULL, 'Y'}, 8485 {"livelist", no_argument, NULL, 'y'}, 8486 {"zstd-headers", no_argument, NULL, 'Z'}, 8487 {0, 0, 0, 0} 8488 }; 8489 8490 while ((c = getopt_long(argc, argv, 8491 "AbcCdDeEFGhiI:klLmMNo:Op:PqrRsSt:uU:vVx:XYyZ", 8492 long_options, NULL)) != -1) { 8493 switch (c) { 8494 case 'b': 8495 case 'c': 8496 case 'C': 8497 case 'd': 8498 case 'D': 8499 case 'E': 8500 case 'G': 8501 case 'h': 8502 case 'i': 8503 case 'l': 8504 case 'm': 8505 case 'M': 8506 case 'N': 8507 case 'O': 8508 case 'r': 8509 case 'R': 8510 case 's': 8511 case 'S': 8512 case 'u': 8513 case 'y': 8514 case 'Z': 8515 dump_opt[c]++; 8516 dump_all = 0; 8517 break; 8518 case 'A': 8519 case 'e': 8520 case 'F': 8521 case 'k': 8522 case 'L': 8523 case 'P': 8524 case 'q': 8525 case 'X': 8526 dump_opt[c]++; 8527 break; 8528 case 'Y': 8529 zfs_reconstruct_indirect_combinations_max = INT_MAX; 8530 zfs_deadman_enabled = 0; 8531 break; 8532 /* NB: Sort single match options below. */ 8533 case 'I': 8534 max_inflight_bytes = strtoull(optarg, NULL, 0); 8535 if (max_inflight_bytes == 0) { 8536 (void) fprintf(stderr, "maximum number " 8537 "of inflight bytes must be greater " 8538 "than 0\n"); 8539 usage(); 8540 } 8541 break; 8542 case 'o': 8543 error = set_global_var(optarg); 8544 if (error != 0) 8545 usage(); 8546 break; 8547 case 'p': 8548 if (searchdirs == NULL) { 8549 searchdirs = umem_alloc(sizeof (char *), 8550 UMEM_NOFAIL); 8551 } else { 8552 char **tmp = umem_alloc((nsearch + 1) * 8553 sizeof (char *), UMEM_NOFAIL); 8554 memcpy(tmp, searchdirs, nsearch * 8555 sizeof (char *)); 8556 umem_free(searchdirs, 8557 nsearch * sizeof (char *)); 8558 searchdirs = tmp; 8559 } 8560 searchdirs[nsearch++] = optarg; 8561 break; 8562 case 't': 8563 max_txg = strtoull(optarg, NULL, 0); 8564 if (max_txg < TXG_INITIAL) { 8565 (void) fprintf(stderr, "incorrect txg " 8566 "specified: %s\n", optarg); 8567 usage(); 8568 } 8569 break; 8570 case 'U': 8571 spa_config_path = optarg; 8572 if (spa_config_path[0] != '/') { 8573 (void) fprintf(stderr, 8574 "cachefile must be an absolute path " 8575 "(i.e. start with a slash)\n"); 8576 usage(); 8577 } 8578 break; 8579 case 'v': 8580 verbose++; 8581 break; 8582 case 'V': 8583 flags = ZFS_IMPORT_VERBATIM; 8584 break; 8585 case 'x': 8586 vn_dumpdir = optarg; 8587 break; 8588 default: 8589 usage(); 8590 break; 8591 } 8592 } 8593 8594 if (!dump_opt['e'] && searchdirs != NULL) { 8595 (void) fprintf(stderr, "-p option requires use of -e\n"); 8596 usage(); 8597 } 8598 #if defined(_LP64) 8599 /* 8600 * ZDB does not typically re-read blocks; therefore limit the ARC 8601 * to 256 MB, which can be used entirely for metadata. 8602 */ 8603 zfs_arc_min = zfs_arc_meta_min = 2ULL << SPA_MAXBLOCKSHIFT; 8604 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024; 8605 #endif 8606 8607 /* 8608 * "zdb -c" uses checksum-verifying scrub i/os which are async reads. 8609 * "zdb -b" uses traversal prefetch which uses async reads. 8610 * For good performance, let several of them be active at once. 8611 */ 8612 zfs_vdev_async_read_max_active = 10; 8613 8614 /* 8615 * Disable reference tracking for better performance. 8616 */ 8617 reference_tracking_enable = B_FALSE; 8618 8619 /* 8620 * Do not fail spa_load when spa_load_verify fails. This is needed 8621 * to load non-idle pools. 8622 */ 8623 spa_load_verify_dryrun = B_TRUE; 8624 8625 /* 8626 * ZDB should have ability to read spacemaps. 8627 */ 8628 spa_mode_readable_spacemaps = B_TRUE; 8629 8630 kernel_init(SPA_MODE_READ); 8631 8632 if (dump_all) 8633 verbose = MAX(verbose, 1); 8634 8635 for (c = 0; c < 256; c++) { 8636 if (dump_all && strchr("AeEFklLNOPrRSXy", c) == NULL) 8637 dump_opt[c] = 1; 8638 if (dump_opt[c]) 8639 dump_opt[c] += verbose; 8640 } 8641 8642 libspl_set_assert_ok((dump_opt['A'] == 1) || (dump_opt['A'] > 2)); 8643 zfs_recover = (dump_opt['A'] > 1); 8644 8645 argc -= optind; 8646 argv += optind; 8647 if (argc < 2 && dump_opt['R']) 8648 usage(); 8649 8650 if (dump_opt['E']) { 8651 if (argc != 1) 8652 usage(); 8653 zdb_embedded_block(argv[0]); 8654 return (0); 8655 } 8656 8657 if (argc < 1) { 8658 if (!dump_opt['e'] && dump_opt['C']) { 8659 dump_cachefile(spa_config_path); 8660 return (0); 8661 } 8662 usage(); 8663 } 8664 8665 if (dump_opt['l']) 8666 return (dump_label(argv[0])); 8667 8668 if (dump_opt['O']) { 8669 if (argc != 2) 8670 usage(); 8671 dump_opt['v'] = verbose + 3; 8672 return (dump_path(argv[0], argv[1], NULL)); 8673 } 8674 if (dump_opt['r']) { 8675 target_is_spa = B_FALSE; 8676 if (argc != 3) 8677 usage(); 8678 dump_opt['v'] = verbose; 8679 error = dump_path(argv[0], argv[1], &object); 8680 } 8681 8682 if (dump_opt['X'] || dump_opt['F']) 8683 rewind = ZPOOL_DO_REWIND | 8684 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 8685 8686 /* -N implies -d */ 8687 if (dump_opt['N'] && dump_opt['d'] == 0) 8688 dump_opt['d'] = dump_opt['N']; 8689 8690 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 8691 nvlist_add_uint64(policy, ZPOOL_LOAD_REQUEST_TXG, max_txg) != 0 || 8692 nvlist_add_uint32(policy, ZPOOL_LOAD_REWIND_POLICY, rewind) != 0) 8693 fatal("internal error: %s", strerror(ENOMEM)); 8694 8695 error = 0; 8696 target = argv[0]; 8697 8698 if (strpbrk(target, "/@") != NULL) { 8699 size_t targetlen; 8700 8701 target_pool = strdup(target); 8702 *strpbrk(target_pool, "/@") = '\0'; 8703 8704 target_is_spa = B_FALSE; 8705 targetlen = strlen(target); 8706 if (targetlen && target[targetlen - 1] == '/') 8707 target[targetlen - 1] = '\0'; 8708 8709 /* 8710 * See if an objset ID was supplied (-d <pool>/<objset ID>). 8711 * To disambiguate tank/100, consider the 100 as objsetID 8712 * if -N was given, otherwise 100 is an objsetID iff 8713 * tank/100 as a named dataset fails on lookup. 8714 */ 8715 objset_str = strchr(target, '/'); 8716 if (objset_str && strlen(objset_str) > 1 && 8717 zdb_numeric(objset_str + 1)) { 8718 char *endptr; 8719 errno = 0; 8720 objset_str++; 8721 objset_id = strtoull(objset_str, &endptr, 0); 8722 /* dataset 0 is the same as opening the pool */ 8723 if (errno == 0 && endptr != objset_str && 8724 objset_id != 0) { 8725 if (dump_opt['N']) 8726 dataset_lookup = B_TRUE; 8727 } 8728 /* normal dataset name not an objset ID */ 8729 if (endptr == objset_str) { 8730 objset_id = -1; 8731 } 8732 } else if (objset_str && !zdb_numeric(objset_str + 1) && 8733 dump_opt['N']) { 8734 printf("Supply a numeric objset ID with -N\n"); 8735 exit(1); 8736 } 8737 } else { 8738 target_pool = target; 8739 } 8740 8741 if (dump_opt['e']) { 8742 importargs_t args = { 0 }; 8743 8744 args.paths = nsearch; 8745 args.path = searchdirs; 8746 args.can_be_active = B_TRUE; 8747 8748 error = zpool_find_config(NULL, target_pool, &cfg, &args, 8749 &libzpool_config_ops); 8750 8751 if (error == 0) { 8752 8753 if (nvlist_add_nvlist(cfg, 8754 ZPOOL_LOAD_POLICY, policy) != 0) { 8755 fatal("can't open '%s': %s", 8756 target, strerror(ENOMEM)); 8757 } 8758 8759 if (dump_opt['C'] > 1) { 8760 (void) printf("\nConfiguration for import:\n"); 8761 dump_nvlist(cfg, 8); 8762 } 8763 8764 /* 8765 * Disable the activity check to allow examination of 8766 * active pools. 8767 */ 8768 error = spa_import(target_pool, cfg, NULL, 8769 flags | ZFS_IMPORT_SKIP_MMP); 8770 } 8771 } 8772 8773 if (searchdirs != NULL) { 8774 umem_free(searchdirs, nsearch * sizeof (char *)); 8775 searchdirs = NULL; 8776 } 8777 8778 /* 8779 * import_checkpointed_state makes the assumption that the 8780 * target pool that we pass it is already part of the spa 8781 * namespace. Because of that we need to make sure to call 8782 * it always after the -e option has been processed, which 8783 * imports the pool to the namespace if it's not in the 8784 * cachefile. 8785 */ 8786 char *checkpoint_pool = NULL; 8787 char *checkpoint_target = NULL; 8788 if (dump_opt['k']) { 8789 checkpoint_pool = import_checkpointed_state(target, cfg, 8790 &checkpoint_target); 8791 8792 if (checkpoint_target != NULL) 8793 target = checkpoint_target; 8794 } 8795 8796 if (cfg != NULL) { 8797 nvlist_free(cfg); 8798 cfg = NULL; 8799 } 8800 8801 if (target_pool != target) 8802 free(target_pool); 8803 8804 if (error == 0) { 8805 if (dump_opt['k'] && (target_is_spa || dump_opt['R'])) { 8806 ASSERT(checkpoint_pool != NULL); 8807 ASSERT(checkpoint_target == NULL); 8808 8809 error = spa_open(checkpoint_pool, &spa, FTAG); 8810 if (error != 0) { 8811 fatal("Tried to open pool \"%s\" but " 8812 "spa_open() failed with error %d\n", 8813 checkpoint_pool, error); 8814 } 8815 8816 } else if (target_is_spa || dump_opt['R'] || objset_id == 0) { 8817 zdb_set_skip_mmp(target); 8818 error = spa_open_rewind(target, &spa, FTAG, policy, 8819 NULL); 8820 if (error) { 8821 /* 8822 * If we're missing the log device then 8823 * try opening the pool after clearing the 8824 * log state. 8825 */ 8826 mutex_enter(&spa_namespace_lock); 8827 if ((spa = spa_lookup(target)) != NULL && 8828 spa->spa_log_state == SPA_LOG_MISSING) { 8829 spa->spa_log_state = SPA_LOG_CLEAR; 8830 error = 0; 8831 } 8832 mutex_exit(&spa_namespace_lock); 8833 8834 if (!error) { 8835 error = spa_open_rewind(target, &spa, 8836 FTAG, policy, NULL); 8837 } 8838 } 8839 } else if (strpbrk(target, "#") != NULL) { 8840 dsl_pool_t *dp; 8841 error = dsl_pool_hold(target, FTAG, &dp); 8842 if (error != 0) { 8843 fatal("can't dump '%s': %s", target, 8844 strerror(error)); 8845 } 8846 error = dump_bookmark(dp, target, B_TRUE, verbose > 1); 8847 dsl_pool_rele(dp, FTAG); 8848 if (error != 0) { 8849 fatal("can't dump '%s': %s", target, 8850 strerror(error)); 8851 } 8852 return (error); 8853 } else { 8854 target_pool = strdup(target); 8855 if (strpbrk(target, "/@") != NULL) 8856 *strpbrk(target_pool, "/@") = '\0'; 8857 8858 zdb_set_skip_mmp(target); 8859 /* 8860 * If -N was supplied, the user has indicated that 8861 * zdb -d <pool>/<objsetID> is in effect. Otherwise 8862 * we first assume that the dataset string is the 8863 * dataset name. If dmu_objset_hold fails with the 8864 * dataset string, and we have an objset_id, retry the 8865 * lookup with the objsetID. 8866 */ 8867 boolean_t retry = B_TRUE; 8868 retry_lookup: 8869 if (dataset_lookup == B_TRUE) { 8870 /* 8871 * Use the supplied id to get the name 8872 * for open_objset. 8873 */ 8874 error = spa_open(target_pool, &spa, FTAG); 8875 if (error == 0) { 8876 error = name_from_objset_id(spa, 8877 objset_id, dsname); 8878 spa_close(spa, FTAG); 8879 if (error == 0) 8880 target = dsname; 8881 } 8882 } 8883 if (error == 0) { 8884 if (objset_id > 0 && retry) { 8885 int err = dmu_objset_hold(target, FTAG, 8886 &os); 8887 if (err) { 8888 dataset_lookup = B_TRUE; 8889 retry = B_FALSE; 8890 goto retry_lookup; 8891 } else { 8892 dmu_objset_rele(os, FTAG); 8893 } 8894 } 8895 error = open_objset(target, FTAG, &os); 8896 } 8897 if (error == 0) 8898 spa = dmu_objset_spa(os); 8899 free(target_pool); 8900 } 8901 } 8902 nvlist_free(policy); 8903 8904 if (error) 8905 fatal("can't open '%s': %s", target, strerror(error)); 8906 8907 /* 8908 * Set the pool failure mode to panic in order to prevent the pool 8909 * from suspending. A suspended I/O will have no way to resume and 8910 * can prevent the zdb(8) command from terminating as expected. 8911 */ 8912 if (spa != NULL) 8913 spa->spa_failmode = ZIO_FAILURE_MODE_PANIC; 8914 8915 argv++; 8916 argc--; 8917 if (dump_opt['r']) { 8918 error = zdb_copy_object(os, object, argv[1]); 8919 } else if (!dump_opt['R']) { 8920 flagbits['d'] = ZOR_FLAG_DIRECTORY; 8921 flagbits['f'] = ZOR_FLAG_PLAIN_FILE; 8922 flagbits['m'] = ZOR_FLAG_SPACE_MAP; 8923 flagbits['z'] = ZOR_FLAG_ZAP; 8924 flagbits['A'] = ZOR_FLAG_ALL_TYPES; 8925 8926 if (argc > 0 && dump_opt['d']) { 8927 zopt_object_args = argc; 8928 zopt_object_ranges = calloc(zopt_object_args, 8929 sizeof (zopt_object_range_t)); 8930 for (unsigned i = 0; i < zopt_object_args; i++) { 8931 int err; 8932 char *msg = NULL; 8933 8934 err = parse_object_range(argv[i], 8935 &zopt_object_ranges[i], &msg); 8936 if (err != 0) 8937 fatal("Bad object or range: '%s': %s\n", 8938 argv[i], msg ? msg : ""); 8939 } 8940 } else if (argc > 0 && dump_opt['m']) { 8941 zopt_metaslab_args = argc; 8942 zopt_metaslab = calloc(zopt_metaslab_args, 8943 sizeof (uint64_t)); 8944 for (unsigned i = 0; i < zopt_metaslab_args; i++) { 8945 errno = 0; 8946 zopt_metaslab[i] = strtoull(argv[i], NULL, 0); 8947 if (zopt_metaslab[i] == 0 && errno != 0) 8948 fatal("bad number %s: %s", argv[i], 8949 strerror(errno)); 8950 } 8951 } 8952 if (os != NULL) { 8953 dump_objset(os); 8954 } else if (zopt_object_args > 0 && !dump_opt['m']) { 8955 dump_objset(spa->spa_meta_objset); 8956 } else { 8957 dump_zpool(spa); 8958 } 8959 } else { 8960 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 8961 flagbits['c'] = ZDB_FLAG_CHECKSUM; 8962 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 8963 flagbits['e'] = ZDB_FLAG_BSWAP; 8964 flagbits['g'] = ZDB_FLAG_GBH; 8965 flagbits['i'] = ZDB_FLAG_INDIRECT; 8966 flagbits['r'] = ZDB_FLAG_RAW; 8967 flagbits['v'] = ZDB_FLAG_VERBOSE; 8968 8969 for (int i = 0; i < argc; i++) 8970 zdb_read_block(argv[i], spa); 8971 } 8972 8973 if (dump_opt['k']) { 8974 free(checkpoint_pool); 8975 if (!target_is_spa) 8976 free(checkpoint_target); 8977 } 8978 8979 if (os != NULL) { 8980 close_objset(os, FTAG); 8981 } else { 8982 spa_close(spa, FTAG); 8983 } 8984 8985 fuid_table_destroy(); 8986 8987 dump_debug_buffer(); 8988 8989 kernel_fini(); 8990 8991 return (error); 8992 } 8993