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 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 1232 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ); 1233 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ); 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 CTASSERT(sizeof (maxbuf) >= NN_NUMBUF_SZ); 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; 2039 ddt_stat_t dds_total; 2040 2041 bzero(&ddh_total, sizeof (ddh_total)); 2042 bzero(&dds_total, sizeof (dds_total)); 2043 2044 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { 2045 ddt_t *ddt = spa->spa_ddt[c]; 2046 for (enum ddt_type type = 0; type < DDT_TYPES; type++) { 2047 for (enum ddt_class class = 0; class < DDT_CLASSES; 2048 class++) { 2049 dump_ddt(ddt, type, class); 2050 } 2051 } 2052 } 2053 2054 ddt_get_dedup_stats(spa, &dds_total); 2055 2056 if (dds_total.dds_blocks == 0) { 2057 (void) printf("All DDTs are empty\n"); 2058 return; 2059 } 2060 2061 (void) printf("\n"); 2062 2063 if (dump_opt['D'] > 1) { 2064 (void) printf("DDT histogram (aggregated over all DDTs):\n"); 2065 ddt_get_dedup_histogram(spa, &ddh_total); 2066 zpool_dump_ddt(&dds_total, &ddh_total); 2067 } 2068 2069 dump_dedup_ratio(&dds_total); 2070 } 2071 2072 static void 2073 dump_dtl_seg(void *arg, uint64_t start, uint64_t size) 2074 { 2075 char *prefix = arg; 2076 2077 (void) printf("%s [%llu,%llu) length %llu\n", 2078 prefix, 2079 (u_longlong_t)start, 2080 (u_longlong_t)(start + size), 2081 (u_longlong_t)(size)); 2082 } 2083 2084 static void 2085 dump_dtl(vdev_t *vd, int indent) 2086 { 2087 spa_t *spa = vd->vdev_spa; 2088 boolean_t required; 2089 const char *name[DTL_TYPES] = { "missing", "partial", "scrub", 2090 "outage" }; 2091 char prefix[256]; 2092 2093 spa_vdev_state_enter(spa, SCL_NONE); 2094 required = vdev_dtl_required(vd); 2095 (void) spa_vdev_state_exit(spa, NULL, 0); 2096 2097 if (indent == 0) 2098 (void) printf("\nDirty time logs:\n\n"); 2099 2100 (void) printf("\t%*s%s [%s]\n", indent, "", 2101 vd->vdev_path ? vd->vdev_path : 2102 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 2103 required ? "DTL-required" : "DTL-expendable"); 2104 2105 for (int t = 0; t < DTL_TYPES; t++) { 2106 range_tree_t *rt = vd->vdev_dtl[t]; 2107 if (range_tree_space(rt) == 0) 2108 continue; 2109 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 2110 indent + 2, "", name[t]); 2111 range_tree_walk(rt, dump_dtl_seg, prefix); 2112 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 2113 dump_spacemap(spa->spa_meta_objset, 2114 vd->vdev_dtl_sm); 2115 } 2116 2117 for (unsigned c = 0; c < vd->vdev_children; c++) 2118 dump_dtl(vd->vdev_child[c], indent + 4); 2119 } 2120 2121 static void 2122 dump_history(spa_t *spa) 2123 { 2124 nvlist_t **events = NULL; 2125 char *buf; 2126 uint64_t resid, len, off = 0; 2127 uint_t num = 0; 2128 int error; 2129 char tbuf[30]; 2130 2131 if ((buf = malloc(SPA_OLD_MAXBLOCKSIZE)) == NULL) { 2132 (void) fprintf(stderr, "%s: unable to allocate I/O buffer\n", 2133 __func__); 2134 return; 2135 } 2136 2137 do { 2138 len = SPA_OLD_MAXBLOCKSIZE; 2139 2140 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 2141 (void) fprintf(stderr, "Unable to read history: " 2142 "error %d\n", error); 2143 free(buf); 2144 return; 2145 } 2146 2147 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 2148 break; 2149 2150 off -= resid; 2151 } while (len != 0); 2152 2153 (void) printf("\nHistory:\n"); 2154 for (unsigned i = 0; i < num; i++) { 2155 boolean_t printed = B_FALSE; 2156 2157 if (nvlist_exists(events[i], ZPOOL_HIST_TIME)) { 2158 time_t tsec; 2159 struct tm t; 2160 2161 tsec = fnvlist_lookup_uint64(events[i], 2162 ZPOOL_HIST_TIME); 2163 (void) localtime_r(&tsec, &t); 2164 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 2165 } else { 2166 tbuf[0] = '\0'; 2167 } 2168 2169 if (nvlist_exists(events[i], ZPOOL_HIST_CMD)) { 2170 (void) printf("%s %s\n", tbuf, 2171 fnvlist_lookup_string(events[i], ZPOOL_HIST_CMD)); 2172 } else if (nvlist_exists(events[i], ZPOOL_HIST_INT_EVENT)) { 2173 uint64_t ievent; 2174 2175 ievent = fnvlist_lookup_uint64(events[i], 2176 ZPOOL_HIST_INT_EVENT); 2177 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 2178 goto next; 2179 2180 (void) printf(" %s [internal %s txg:%ju] %s\n", 2181 tbuf, 2182 zfs_history_event_names[ievent], 2183 fnvlist_lookup_uint64(events[i], 2184 ZPOOL_HIST_TXG), 2185 fnvlist_lookup_string(events[i], 2186 ZPOOL_HIST_INT_STR)); 2187 } else if (nvlist_exists(events[i], ZPOOL_HIST_INT_NAME)) { 2188 (void) printf("%s [txg:%ju] %s", tbuf, 2189 fnvlist_lookup_uint64(events[i], 2190 ZPOOL_HIST_TXG), 2191 fnvlist_lookup_string(events[i], 2192 ZPOOL_HIST_INT_NAME)); 2193 2194 if (nvlist_exists(events[i], ZPOOL_HIST_DSNAME)) { 2195 (void) printf(" %s (%llu)", 2196 fnvlist_lookup_string(events[i], 2197 ZPOOL_HIST_DSNAME), 2198 (u_longlong_t)fnvlist_lookup_uint64( 2199 events[i], 2200 ZPOOL_HIST_DSID)); 2201 } 2202 2203 (void) printf(" %s\n", fnvlist_lookup_string(events[i], 2204 ZPOOL_HIST_INT_STR)); 2205 } else if (nvlist_exists(events[i], ZPOOL_HIST_IOCTL)) { 2206 (void) printf("%s ioctl %s\n", tbuf, 2207 fnvlist_lookup_string(events[i], 2208 ZPOOL_HIST_IOCTL)); 2209 2210 if (nvlist_exists(events[i], ZPOOL_HIST_INPUT_NVL)) { 2211 (void) printf(" input:\n"); 2212 dump_nvlist(fnvlist_lookup_nvlist(events[i], 2213 ZPOOL_HIST_INPUT_NVL), 8); 2214 } 2215 if (nvlist_exists(events[i], ZPOOL_HIST_OUTPUT_NVL)) { 2216 (void) printf(" output:\n"); 2217 dump_nvlist(fnvlist_lookup_nvlist(events[i], 2218 ZPOOL_HIST_OUTPUT_NVL), 8); 2219 } 2220 if (nvlist_exists(events[i], ZPOOL_HIST_ERRNO)) { 2221 (void) printf(" errno: %lld\n", 2222 (longlong_t)fnvlist_lookup_int64(events[i], 2223 ZPOOL_HIST_ERRNO)); 2224 } 2225 } else { 2226 goto next; 2227 } 2228 2229 printed = B_TRUE; 2230 next: 2231 if (dump_opt['h'] > 1) { 2232 if (!printed) 2233 (void) printf("unrecognized record:\n"); 2234 dump_nvlist(events[i], 2); 2235 } 2236 } 2237 free(buf); 2238 } 2239 2240 static void 2241 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 2242 { 2243 (void) os, (void) object, (void) data, (void) size; 2244 } 2245 2246 static uint64_t 2247 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, 2248 const zbookmark_phys_t *zb) 2249 { 2250 if (dnp == NULL) { 2251 ASSERT(zb->zb_level < 0); 2252 if (zb->zb_object == 0) 2253 return (zb->zb_blkid); 2254 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 2255 } 2256 2257 ASSERT(zb->zb_level >= 0); 2258 2259 return ((zb->zb_blkid << 2260 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 2261 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 2262 } 2263 2264 static void 2265 snprintf_zstd_header(spa_t *spa, char *blkbuf, size_t buflen, 2266 const blkptr_t *bp) 2267 { 2268 abd_t *pabd; 2269 void *buf; 2270 zio_t *zio; 2271 zfs_zstdhdr_t zstd_hdr; 2272 int error; 2273 2274 if (BP_GET_COMPRESS(bp) != ZIO_COMPRESS_ZSTD) 2275 return; 2276 2277 if (BP_IS_HOLE(bp)) 2278 return; 2279 2280 if (BP_IS_EMBEDDED(bp)) { 2281 buf = malloc(SPA_MAXBLOCKSIZE); 2282 if (buf == NULL) { 2283 (void) fprintf(stderr, "out of memory\n"); 2284 exit(1); 2285 } 2286 decode_embedded_bp_compressed(bp, buf); 2287 memcpy(&zstd_hdr, buf, sizeof (zstd_hdr)); 2288 free(buf); 2289 zstd_hdr.c_len = BE_32(zstd_hdr.c_len); 2290 zstd_hdr.raw_version_level = BE_32(zstd_hdr.raw_version_level); 2291 (void) snprintf(blkbuf + strlen(blkbuf), 2292 buflen - strlen(blkbuf), 2293 " ZSTD:size=%u:version=%u:level=%u:EMBEDDED", 2294 zstd_hdr.c_len, zfs_get_hdrversion(&zstd_hdr), 2295 zfs_get_hdrlevel(&zstd_hdr)); 2296 return; 2297 } 2298 2299 pabd = abd_alloc_for_io(SPA_MAXBLOCKSIZE, B_FALSE); 2300 zio = zio_root(spa, NULL, NULL, 0); 2301 2302 /* Decrypt but don't decompress so we can read the compression header */ 2303 zio_nowait(zio_read(zio, spa, bp, pabd, BP_GET_PSIZE(bp), NULL, NULL, 2304 ZIO_PRIORITY_SYNC_READ, ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW_COMPRESS, 2305 NULL)); 2306 error = zio_wait(zio); 2307 if (error) { 2308 (void) fprintf(stderr, "read failed: %d\n", error); 2309 return; 2310 } 2311 buf = abd_borrow_buf_copy(pabd, BP_GET_LSIZE(bp)); 2312 memcpy(&zstd_hdr, buf, sizeof (zstd_hdr)); 2313 zstd_hdr.c_len = BE_32(zstd_hdr.c_len); 2314 zstd_hdr.raw_version_level = BE_32(zstd_hdr.raw_version_level); 2315 2316 (void) snprintf(blkbuf + strlen(blkbuf), 2317 buflen - strlen(blkbuf), 2318 " ZSTD:size=%u:version=%u:level=%u:NORMAL", 2319 zstd_hdr.c_len, zfs_get_hdrversion(&zstd_hdr), 2320 zfs_get_hdrlevel(&zstd_hdr)); 2321 2322 abd_return_buf_copy(pabd, buf, BP_GET_LSIZE(bp)); 2323 } 2324 2325 static void 2326 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp, 2327 boolean_t bp_freed) 2328 { 2329 const dva_t *dva = bp->blk_dva; 2330 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 2331 int i; 2332 2333 if (dump_opt['b'] >= 6) { 2334 snprintf_blkptr(blkbuf, buflen, bp); 2335 if (bp_freed) { 2336 (void) snprintf(blkbuf + strlen(blkbuf), 2337 buflen - strlen(blkbuf), " %s", "FREE"); 2338 } 2339 return; 2340 } 2341 2342 if (BP_IS_EMBEDDED(bp)) { 2343 (void) sprintf(blkbuf, 2344 "EMBEDDED et=%u %llxL/%llxP B=%llu", 2345 (int)BPE_GET_ETYPE(bp), 2346 (u_longlong_t)BPE_GET_LSIZE(bp), 2347 (u_longlong_t)BPE_GET_PSIZE(bp), 2348 (u_longlong_t)bp->blk_birth); 2349 return; 2350 } 2351 2352 blkbuf[0] = '\0'; 2353 2354 for (i = 0; i < ndvas; i++) 2355 (void) snprintf(blkbuf + strlen(blkbuf), 2356 buflen - strlen(blkbuf), "%llu:%llx:%llx ", 2357 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 2358 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 2359 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 2360 2361 if (BP_IS_HOLE(bp)) { 2362 (void) snprintf(blkbuf + strlen(blkbuf), 2363 buflen - strlen(blkbuf), 2364 "%llxL B=%llu", 2365 (u_longlong_t)BP_GET_LSIZE(bp), 2366 (u_longlong_t)bp->blk_birth); 2367 } else { 2368 (void) snprintf(blkbuf + strlen(blkbuf), 2369 buflen - strlen(blkbuf), 2370 "%llxL/%llxP F=%llu B=%llu/%llu", 2371 (u_longlong_t)BP_GET_LSIZE(bp), 2372 (u_longlong_t)BP_GET_PSIZE(bp), 2373 (u_longlong_t)BP_GET_FILL(bp), 2374 (u_longlong_t)bp->blk_birth, 2375 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 2376 if (bp_freed) 2377 (void) snprintf(blkbuf + strlen(blkbuf), 2378 buflen - strlen(blkbuf), " %s", "FREE"); 2379 (void) snprintf(blkbuf + strlen(blkbuf), 2380 buflen - strlen(blkbuf), " cksum=%llx:%llx:%llx:%llx", 2381 (u_longlong_t)bp->blk_cksum.zc_word[0], 2382 (u_longlong_t)bp->blk_cksum.zc_word[1], 2383 (u_longlong_t)bp->blk_cksum.zc_word[2], 2384 (u_longlong_t)bp->blk_cksum.zc_word[3]); 2385 } 2386 } 2387 2388 static void 2389 print_indirect(spa_t *spa, blkptr_t *bp, const zbookmark_phys_t *zb, 2390 const dnode_phys_t *dnp) 2391 { 2392 char blkbuf[BP_SPRINTF_LEN]; 2393 int l; 2394 2395 if (!BP_IS_EMBEDDED(bp)) { 2396 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 2397 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 2398 } 2399 2400 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 2401 2402 ASSERT(zb->zb_level >= 0); 2403 2404 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 2405 if (l == zb->zb_level) { 2406 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 2407 } else { 2408 (void) printf(" "); 2409 } 2410 } 2411 2412 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp, B_FALSE); 2413 if (dump_opt['Z'] && BP_GET_COMPRESS(bp) == ZIO_COMPRESS_ZSTD) 2414 snprintf_zstd_header(spa, blkbuf, sizeof (blkbuf), bp); 2415 (void) printf("%s\n", blkbuf); 2416 } 2417 2418 static int 2419 visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 2420 blkptr_t *bp, const zbookmark_phys_t *zb) 2421 { 2422 int err = 0; 2423 2424 if (bp->blk_birth == 0) 2425 return (0); 2426 2427 print_indirect(spa, bp, zb, dnp); 2428 2429 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) { 2430 arc_flags_t flags = ARC_FLAG_WAIT; 2431 int i; 2432 blkptr_t *cbp; 2433 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 2434 arc_buf_t *buf; 2435 uint64_t fill = 0; 2436 ASSERT(!BP_IS_REDACTED(bp)); 2437 2438 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 2439 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 2440 if (err) 2441 return (err); 2442 ASSERT(buf->b_data); 2443 2444 /* recursively visit blocks below this */ 2445 cbp = buf->b_data; 2446 for (i = 0; i < epb; i++, cbp++) { 2447 zbookmark_phys_t czb; 2448 2449 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 2450 zb->zb_level - 1, 2451 zb->zb_blkid * epb + i); 2452 err = visit_indirect(spa, dnp, cbp, &czb); 2453 if (err) 2454 break; 2455 fill += BP_GET_FILL(cbp); 2456 } 2457 if (!err) 2458 ASSERT3U(fill, ==, BP_GET_FILL(bp)); 2459 arc_buf_destroy(buf, &buf); 2460 } 2461 2462 return (err); 2463 } 2464 2465 static void 2466 dump_indirect(dnode_t *dn) 2467 { 2468 dnode_phys_t *dnp = dn->dn_phys; 2469 zbookmark_phys_t czb; 2470 2471 (void) printf("Indirect blocks:\n"); 2472 2473 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 2474 dn->dn_object, dnp->dn_nlevels - 1, 0); 2475 for (int j = 0; j < dnp->dn_nblkptr; j++) { 2476 czb.zb_blkid = j; 2477 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 2478 &dnp->dn_blkptr[j], &czb); 2479 } 2480 2481 (void) printf("\n"); 2482 } 2483 2484 static void 2485 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 2486 { 2487 (void) os, (void) object; 2488 dsl_dir_phys_t *dd = data; 2489 time_t crtime; 2490 char nice[32]; 2491 2492 /* make sure nicenum has enough space */ 2493 CTASSERT(sizeof (nice) >= NN_NUMBUF_SZ); 2494 2495 if (dd == NULL) 2496 return; 2497 2498 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 2499 2500 crtime = dd->dd_creation_time; 2501 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 2502 (void) printf("\t\thead_dataset_obj = %llu\n", 2503 (u_longlong_t)dd->dd_head_dataset_obj); 2504 (void) printf("\t\tparent_dir_obj = %llu\n", 2505 (u_longlong_t)dd->dd_parent_obj); 2506 (void) printf("\t\torigin_obj = %llu\n", 2507 (u_longlong_t)dd->dd_origin_obj); 2508 (void) printf("\t\tchild_dir_zapobj = %llu\n", 2509 (u_longlong_t)dd->dd_child_dir_zapobj); 2510 zdb_nicenum(dd->dd_used_bytes, nice, sizeof (nice)); 2511 (void) printf("\t\tused_bytes = %s\n", nice); 2512 zdb_nicenum(dd->dd_compressed_bytes, nice, sizeof (nice)); 2513 (void) printf("\t\tcompressed_bytes = %s\n", nice); 2514 zdb_nicenum(dd->dd_uncompressed_bytes, nice, sizeof (nice)); 2515 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 2516 zdb_nicenum(dd->dd_quota, nice, sizeof (nice)); 2517 (void) printf("\t\tquota = %s\n", nice); 2518 zdb_nicenum(dd->dd_reserved, nice, sizeof (nice)); 2519 (void) printf("\t\treserved = %s\n", nice); 2520 (void) printf("\t\tprops_zapobj = %llu\n", 2521 (u_longlong_t)dd->dd_props_zapobj); 2522 (void) printf("\t\tdeleg_zapobj = %llu\n", 2523 (u_longlong_t)dd->dd_deleg_zapobj); 2524 (void) printf("\t\tflags = %llx\n", 2525 (u_longlong_t)dd->dd_flags); 2526 2527 #define DO(which) \ 2528 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice, \ 2529 sizeof (nice)); \ 2530 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 2531 DO(HEAD); 2532 DO(SNAP); 2533 DO(CHILD); 2534 DO(CHILD_RSRV); 2535 DO(REFRSRV); 2536 #undef DO 2537 (void) printf("\t\tclones = %llu\n", 2538 (u_longlong_t)dd->dd_clones); 2539 } 2540 2541 static void 2542 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 2543 { 2544 (void) os, (void) object; 2545 dsl_dataset_phys_t *ds = data; 2546 time_t crtime; 2547 char used[32], compressed[32], uncompressed[32], unique[32]; 2548 char blkbuf[BP_SPRINTF_LEN]; 2549 2550 /* make sure nicenum has enough space */ 2551 CTASSERT(sizeof (used) >= NN_NUMBUF_SZ); 2552 CTASSERT(sizeof (compressed) >= NN_NUMBUF_SZ); 2553 CTASSERT(sizeof (uncompressed) >= NN_NUMBUF_SZ); 2554 CTASSERT(sizeof (unique) >= NN_NUMBUF_SZ); 2555 2556 if (ds == NULL) 2557 return; 2558 2559 ASSERT(size == sizeof (*ds)); 2560 crtime = ds->ds_creation_time; 2561 zdb_nicenum(ds->ds_referenced_bytes, used, sizeof (used)); 2562 zdb_nicenum(ds->ds_compressed_bytes, compressed, sizeof (compressed)); 2563 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed, 2564 sizeof (uncompressed)); 2565 zdb_nicenum(ds->ds_unique_bytes, unique, sizeof (unique)); 2566 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp); 2567 2568 (void) printf("\t\tdir_obj = %llu\n", 2569 (u_longlong_t)ds->ds_dir_obj); 2570 (void) printf("\t\tprev_snap_obj = %llu\n", 2571 (u_longlong_t)ds->ds_prev_snap_obj); 2572 (void) printf("\t\tprev_snap_txg = %llu\n", 2573 (u_longlong_t)ds->ds_prev_snap_txg); 2574 (void) printf("\t\tnext_snap_obj = %llu\n", 2575 (u_longlong_t)ds->ds_next_snap_obj); 2576 (void) printf("\t\tsnapnames_zapobj = %llu\n", 2577 (u_longlong_t)ds->ds_snapnames_zapobj); 2578 (void) printf("\t\tnum_children = %llu\n", 2579 (u_longlong_t)ds->ds_num_children); 2580 (void) printf("\t\tuserrefs_obj = %llu\n", 2581 (u_longlong_t)ds->ds_userrefs_obj); 2582 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 2583 (void) printf("\t\tcreation_txg = %llu\n", 2584 (u_longlong_t)ds->ds_creation_txg); 2585 (void) printf("\t\tdeadlist_obj = %llu\n", 2586 (u_longlong_t)ds->ds_deadlist_obj); 2587 (void) printf("\t\tused_bytes = %s\n", used); 2588 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 2589 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 2590 (void) printf("\t\tunique = %s\n", unique); 2591 (void) printf("\t\tfsid_guid = %llu\n", 2592 (u_longlong_t)ds->ds_fsid_guid); 2593 (void) printf("\t\tguid = %llu\n", 2594 (u_longlong_t)ds->ds_guid); 2595 (void) printf("\t\tflags = %llx\n", 2596 (u_longlong_t)ds->ds_flags); 2597 (void) printf("\t\tnext_clones_obj = %llu\n", 2598 (u_longlong_t)ds->ds_next_clones_obj); 2599 (void) printf("\t\tprops_obj = %llu\n", 2600 (u_longlong_t)ds->ds_props_obj); 2601 (void) printf("\t\tbp = %s\n", blkbuf); 2602 } 2603 2604 static int 2605 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 2606 { 2607 (void) arg, (void) tx; 2608 char blkbuf[BP_SPRINTF_LEN]; 2609 2610 if (bp->blk_birth != 0) { 2611 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2612 (void) printf("\t%s\n", blkbuf); 2613 } 2614 return (0); 2615 } 2616 2617 static void 2618 dump_bptree(objset_t *os, uint64_t obj, const char *name) 2619 { 2620 char bytes[32]; 2621 bptree_phys_t *bt; 2622 dmu_buf_t *db; 2623 2624 /* make sure nicenum has enough space */ 2625 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 2626 2627 if (dump_opt['d'] < 3) 2628 return; 2629 2630 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 2631 bt = db->db_data; 2632 zdb_nicenum(bt->bt_bytes, bytes, sizeof (bytes)); 2633 (void) printf("\n %s: %llu datasets, %s\n", 2634 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 2635 dmu_buf_rele(db, FTAG); 2636 2637 if (dump_opt['d'] < 5) 2638 return; 2639 2640 (void) printf("\n"); 2641 2642 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 2643 } 2644 2645 static int 2646 dump_bpobj_cb(void *arg, const blkptr_t *bp, boolean_t bp_freed, dmu_tx_t *tx) 2647 { 2648 (void) arg, (void) tx; 2649 char blkbuf[BP_SPRINTF_LEN]; 2650 2651 ASSERT(bp->blk_birth != 0); 2652 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp, bp_freed); 2653 (void) printf("\t%s\n", blkbuf); 2654 return (0); 2655 } 2656 2657 static void 2658 dump_full_bpobj(bpobj_t *bpo, const char *name, int indent) 2659 { 2660 char bytes[32]; 2661 char comp[32]; 2662 char uncomp[32]; 2663 uint64_t i; 2664 2665 /* make sure nicenum has enough space */ 2666 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 2667 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ); 2668 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ); 2669 2670 if (dump_opt['d'] < 3) 2671 return; 2672 2673 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes, sizeof (bytes)); 2674 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 2675 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp, sizeof (comp)); 2676 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp, sizeof (uncomp)); 2677 if (bpo->bpo_havefreed) { 2678 (void) printf(" %*s: object %llu, %llu local " 2679 "blkptrs, %llu freed, %llu subobjs in object %llu, " 2680 "%s (%s/%s comp)\n", 2681 indent * 8, name, 2682 (u_longlong_t)bpo->bpo_object, 2683 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 2684 (u_longlong_t)bpo->bpo_phys->bpo_num_freed, 2685 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 2686 (u_longlong_t)bpo->bpo_phys->bpo_subobjs, 2687 bytes, comp, uncomp); 2688 } else { 2689 (void) printf(" %*s: object %llu, %llu local " 2690 "blkptrs, %llu subobjs in object %llu, " 2691 "%s (%s/%s comp)\n", 2692 indent * 8, name, 2693 (u_longlong_t)bpo->bpo_object, 2694 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 2695 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 2696 (u_longlong_t)bpo->bpo_phys->bpo_subobjs, 2697 bytes, comp, uncomp); 2698 } 2699 2700 for (i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 2701 uint64_t subobj; 2702 bpobj_t subbpo; 2703 int error; 2704 VERIFY0(dmu_read(bpo->bpo_os, 2705 bpo->bpo_phys->bpo_subobjs, 2706 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 2707 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 2708 if (error != 0) { 2709 (void) printf("ERROR %u while trying to open " 2710 "subobj id %llu\n", 2711 error, (u_longlong_t)subobj); 2712 continue; 2713 } 2714 dump_full_bpobj(&subbpo, "subobj", indent + 1); 2715 bpobj_close(&subbpo); 2716 } 2717 } else { 2718 if (bpo->bpo_havefreed) { 2719 (void) printf(" %*s: object %llu, %llu blkptrs, " 2720 "%llu freed, %s\n", 2721 indent * 8, name, 2722 (u_longlong_t)bpo->bpo_object, 2723 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 2724 (u_longlong_t)bpo->bpo_phys->bpo_num_freed, 2725 bytes); 2726 } else { 2727 (void) printf(" %*s: object %llu, %llu blkptrs, " 2728 "%s\n", 2729 indent * 8, name, 2730 (u_longlong_t)bpo->bpo_object, 2731 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 2732 bytes); 2733 } 2734 } 2735 2736 if (dump_opt['d'] < 5) 2737 return; 2738 2739 2740 if (indent == 0) { 2741 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 2742 (void) printf("\n"); 2743 } 2744 } 2745 2746 static int 2747 dump_bookmark(dsl_pool_t *dp, char *name, boolean_t print_redact, 2748 boolean_t print_list) 2749 { 2750 int err = 0; 2751 zfs_bookmark_phys_t prop; 2752 objset_t *mos = dp->dp_spa->spa_meta_objset; 2753 err = dsl_bookmark_lookup(dp, name, NULL, &prop); 2754 2755 if (err != 0) { 2756 return (err); 2757 } 2758 2759 (void) printf("\t#%s: ", strchr(name, '#') + 1); 2760 (void) printf("{guid: %llx creation_txg: %llu creation_time: " 2761 "%llu redaction_obj: %llu}\n", (u_longlong_t)prop.zbm_guid, 2762 (u_longlong_t)prop.zbm_creation_txg, 2763 (u_longlong_t)prop.zbm_creation_time, 2764 (u_longlong_t)prop.zbm_redaction_obj); 2765 2766 IMPLY(print_list, print_redact); 2767 if (!print_redact || prop.zbm_redaction_obj == 0) 2768 return (0); 2769 2770 redaction_list_t *rl; 2771 VERIFY0(dsl_redaction_list_hold_obj(dp, 2772 prop.zbm_redaction_obj, FTAG, &rl)); 2773 2774 redaction_list_phys_t *rlp = rl->rl_phys; 2775 (void) printf("\tRedacted:\n\t\tProgress: "); 2776 if (rlp->rlp_last_object != UINT64_MAX || 2777 rlp->rlp_last_blkid != UINT64_MAX) { 2778 (void) printf("%llu %llu (incomplete)\n", 2779 (u_longlong_t)rlp->rlp_last_object, 2780 (u_longlong_t)rlp->rlp_last_blkid); 2781 } else { 2782 (void) printf("complete\n"); 2783 } 2784 (void) printf("\t\tSnapshots: ["); 2785 for (unsigned int i = 0; i < rlp->rlp_num_snaps; i++) { 2786 if (i > 0) 2787 (void) printf(", "); 2788 (void) printf("%0llu", 2789 (u_longlong_t)rlp->rlp_snaps[i]); 2790 } 2791 (void) printf("]\n\t\tLength: %llu\n", 2792 (u_longlong_t)rlp->rlp_num_entries); 2793 2794 if (!print_list) { 2795 dsl_redaction_list_rele(rl, FTAG); 2796 return (0); 2797 } 2798 2799 if (rlp->rlp_num_entries == 0) { 2800 dsl_redaction_list_rele(rl, FTAG); 2801 (void) printf("\t\tRedaction List: []\n\n"); 2802 return (0); 2803 } 2804 2805 redact_block_phys_t *rbp_buf; 2806 uint64_t size; 2807 dmu_object_info_t doi; 2808 2809 VERIFY0(dmu_object_info(mos, prop.zbm_redaction_obj, &doi)); 2810 size = doi.doi_max_offset; 2811 rbp_buf = kmem_alloc(size, KM_SLEEP); 2812 2813 err = dmu_read(mos, prop.zbm_redaction_obj, 0, size, 2814 rbp_buf, 0); 2815 if (err != 0) { 2816 dsl_redaction_list_rele(rl, FTAG); 2817 kmem_free(rbp_buf, size); 2818 return (err); 2819 } 2820 2821 (void) printf("\t\tRedaction List: [{object: %llx, offset: " 2822 "%llx, blksz: %x, count: %llx}", 2823 (u_longlong_t)rbp_buf[0].rbp_object, 2824 (u_longlong_t)rbp_buf[0].rbp_blkid, 2825 (uint_t)(redact_block_get_size(&rbp_buf[0])), 2826 (u_longlong_t)redact_block_get_count(&rbp_buf[0])); 2827 2828 for (size_t i = 1; i < rlp->rlp_num_entries; i++) { 2829 (void) printf(",\n\t\t{object: %llx, offset: %llx, " 2830 "blksz: %x, count: %llx}", 2831 (u_longlong_t)rbp_buf[i].rbp_object, 2832 (u_longlong_t)rbp_buf[i].rbp_blkid, 2833 (uint_t)(redact_block_get_size(&rbp_buf[i])), 2834 (u_longlong_t)redact_block_get_count(&rbp_buf[i])); 2835 } 2836 dsl_redaction_list_rele(rl, FTAG); 2837 kmem_free(rbp_buf, size); 2838 (void) printf("]\n\n"); 2839 return (0); 2840 } 2841 2842 static void 2843 dump_bookmarks(objset_t *os, int verbosity) 2844 { 2845 zap_cursor_t zc; 2846 zap_attribute_t attr; 2847 dsl_dataset_t *ds = dmu_objset_ds(os); 2848 dsl_pool_t *dp = spa_get_dsl(os->os_spa); 2849 objset_t *mos = os->os_spa->spa_meta_objset; 2850 if (verbosity < 4) 2851 return; 2852 dsl_pool_config_enter(dp, FTAG); 2853 2854 for (zap_cursor_init(&zc, mos, ds->ds_bookmarks_obj); 2855 zap_cursor_retrieve(&zc, &attr) == 0; 2856 zap_cursor_advance(&zc)) { 2857 char osname[ZFS_MAX_DATASET_NAME_LEN]; 2858 char buf[ZFS_MAX_DATASET_NAME_LEN]; 2859 dmu_objset_name(os, osname); 2860 VERIFY3S(0, <=, snprintf(buf, sizeof (buf), "%s#%s", osname, 2861 attr.za_name)); 2862 (void) dump_bookmark(dp, buf, verbosity >= 5, verbosity >= 6); 2863 } 2864 zap_cursor_fini(&zc); 2865 dsl_pool_config_exit(dp, FTAG); 2866 } 2867 2868 static void 2869 bpobj_count_refd(bpobj_t *bpo) 2870 { 2871 mos_obj_refd(bpo->bpo_object); 2872 2873 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 2874 mos_obj_refd(bpo->bpo_phys->bpo_subobjs); 2875 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 2876 uint64_t subobj; 2877 bpobj_t subbpo; 2878 int error; 2879 VERIFY0(dmu_read(bpo->bpo_os, 2880 bpo->bpo_phys->bpo_subobjs, 2881 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 2882 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 2883 if (error != 0) { 2884 (void) printf("ERROR %u while trying to open " 2885 "subobj id %llu\n", 2886 error, (u_longlong_t)subobj); 2887 continue; 2888 } 2889 bpobj_count_refd(&subbpo); 2890 bpobj_close(&subbpo); 2891 } 2892 } 2893 } 2894 2895 static int 2896 dsl_deadlist_entry_count_refd(void *arg, dsl_deadlist_entry_t *dle) 2897 { 2898 spa_t *spa = arg; 2899 uint64_t empty_bpobj = spa->spa_dsl_pool->dp_empty_bpobj; 2900 if (dle->dle_bpobj.bpo_object != empty_bpobj) 2901 bpobj_count_refd(&dle->dle_bpobj); 2902 return (0); 2903 } 2904 2905 static int 2906 dsl_deadlist_entry_dump(void *arg, dsl_deadlist_entry_t *dle) 2907 { 2908 ASSERT(arg == NULL); 2909 if (dump_opt['d'] >= 5) { 2910 char buf[128]; 2911 (void) snprintf(buf, sizeof (buf), 2912 "mintxg %llu -> obj %llu", 2913 (longlong_t)dle->dle_mintxg, 2914 (longlong_t)dle->dle_bpobj.bpo_object); 2915 2916 dump_full_bpobj(&dle->dle_bpobj, buf, 0); 2917 } else { 2918 (void) printf("mintxg %llu -> obj %llu\n", 2919 (longlong_t)dle->dle_mintxg, 2920 (longlong_t)dle->dle_bpobj.bpo_object); 2921 } 2922 return (0); 2923 } 2924 2925 static void 2926 dump_blkptr_list(dsl_deadlist_t *dl, char *name) 2927 { 2928 char bytes[32]; 2929 char comp[32]; 2930 char uncomp[32]; 2931 char entries[32]; 2932 spa_t *spa = dmu_objset_spa(dl->dl_os); 2933 uint64_t empty_bpobj = spa->spa_dsl_pool->dp_empty_bpobj; 2934 2935 if (dl->dl_oldfmt) { 2936 if (dl->dl_bpobj.bpo_object != empty_bpobj) 2937 bpobj_count_refd(&dl->dl_bpobj); 2938 } else { 2939 mos_obj_refd(dl->dl_object); 2940 dsl_deadlist_iterate(dl, dsl_deadlist_entry_count_refd, spa); 2941 } 2942 2943 /* make sure nicenum has enough space */ 2944 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 2945 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ); 2946 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ); 2947 CTASSERT(sizeof (entries) >= NN_NUMBUF_SZ); 2948 2949 if (dump_opt['d'] < 3) 2950 return; 2951 2952 if (dl->dl_oldfmt) { 2953 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0); 2954 return; 2955 } 2956 2957 zdb_nicenum(dl->dl_phys->dl_used, bytes, sizeof (bytes)); 2958 zdb_nicenum(dl->dl_phys->dl_comp, comp, sizeof (comp)); 2959 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp, sizeof (uncomp)); 2960 zdb_nicenum(avl_numnodes(&dl->dl_tree), entries, sizeof (entries)); 2961 (void) printf("\n %s: %s (%s/%s comp), %s entries\n", 2962 name, bytes, comp, uncomp, entries); 2963 2964 if (dump_opt['d'] < 4) 2965 return; 2966 2967 (void) printf("\n"); 2968 2969 dsl_deadlist_iterate(dl, dsl_deadlist_entry_dump, NULL); 2970 } 2971 2972 static int 2973 verify_dd_livelist(objset_t *os) 2974 { 2975 uint64_t ll_used, used, ll_comp, comp, ll_uncomp, uncomp; 2976 dsl_pool_t *dp = spa_get_dsl(os->os_spa); 2977 dsl_dir_t *dd = os->os_dsl_dataset->ds_dir; 2978 2979 ASSERT(!dmu_objset_is_snapshot(os)); 2980 if (!dsl_deadlist_is_open(&dd->dd_livelist)) 2981 return (0); 2982 2983 /* Iterate through the livelist to check for duplicates */ 2984 dsl_deadlist_iterate(&dd->dd_livelist, sublivelist_verify_lightweight, 2985 NULL); 2986 2987 dsl_pool_config_enter(dp, FTAG); 2988 dsl_deadlist_space(&dd->dd_livelist, &ll_used, 2989 &ll_comp, &ll_uncomp); 2990 2991 dsl_dataset_t *origin_ds; 2992 ASSERT(dsl_pool_config_held(dp)); 2993 VERIFY0(dsl_dataset_hold_obj(dp, 2994 dsl_dir_phys(dd)->dd_origin_obj, FTAG, &origin_ds)); 2995 VERIFY0(dsl_dataset_space_written(origin_ds, os->os_dsl_dataset, 2996 &used, &comp, &uncomp)); 2997 dsl_dataset_rele(origin_ds, FTAG); 2998 dsl_pool_config_exit(dp, FTAG); 2999 /* 3000 * It's possible that the dataset's uncomp space is larger than the 3001 * livelist's because livelists do not track embedded block pointers 3002 */ 3003 if (used != ll_used || comp != ll_comp || uncomp < ll_uncomp) { 3004 char nice_used[32], nice_comp[32], nice_uncomp[32]; 3005 (void) printf("Discrepancy in space accounting:\n"); 3006 zdb_nicenum(used, nice_used, sizeof (nice_used)); 3007 zdb_nicenum(comp, nice_comp, sizeof (nice_comp)); 3008 zdb_nicenum(uncomp, nice_uncomp, sizeof (nice_uncomp)); 3009 (void) printf("dir: used %s, comp %s, uncomp %s\n", 3010 nice_used, nice_comp, nice_uncomp); 3011 zdb_nicenum(ll_used, nice_used, sizeof (nice_used)); 3012 zdb_nicenum(ll_comp, nice_comp, sizeof (nice_comp)); 3013 zdb_nicenum(ll_uncomp, nice_uncomp, sizeof (nice_uncomp)); 3014 (void) printf("livelist: used %s, comp %s, uncomp %s\n", 3015 nice_used, nice_comp, nice_uncomp); 3016 return (1); 3017 } 3018 return (0); 3019 } 3020 3021 static avl_tree_t idx_tree; 3022 static avl_tree_t domain_tree; 3023 static boolean_t fuid_table_loaded; 3024 static objset_t *sa_os = NULL; 3025 static sa_attr_type_t *sa_attr_table = NULL; 3026 3027 static int 3028 open_objset(const char *path, void *tag, objset_t **osp) 3029 { 3030 int err; 3031 uint64_t sa_attrs = 0; 3032 uint64_t version = 0; 3033 3034 VERIFY3P(sa_os, ==, NULL); 3035 /* 3036 * We can't own an objset if it's redacted. Therefore, we do this 3037 * dance: hold the objset, then acquire a long hold on its dataset, then 3038 * release the pool (which is held as part of holding the objset). 3039 */ 3040 err = dmu_objset_hold(path, tag, osp); 3041 if (err != 0) { 3042 (void) fprintf(stderr, "failed to hold dataset '%s': %s\n", 3043 path, strerror(err)); 3044 return (err); 3045 } 3046 dsl_dataset_long_hold(dmu_objset_ds(*osp), tag); 3047 dsl_pool_rele(dmu_objset_pool(*osp), tag); 3048 3049 if (dmu_objset_type(*osp) == DMU_OST_ZFS && !(*osp)->os_encrypted) { 3050 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZPL_VERSION_STR, 3051 8, 1, &version); 3052 if (version >= ZPL_VERSION_SA) { 3053 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 3054 8, 1, &sa_attrs); 3055 } 3056 err = sa_setup(*osp, sa_attrs, zfs_attr_table, ZPL_END, 3057 &sa_attr_table); 3058 if (err != 0) { 3059 (void) fprintf(stderr, "sa_setup failed: %s\n", 3060 strerror(err)); 3061 dsl_dataset_long_rele(dmu_objset_ds(*osp), tag); 3062 dsl_dataset_rele(dmu_objset_ds(*osp), tag); 3063 *osp = NULL; 3064 } 3065 } 3066 sa_os = *osp; 3067 3068 return (0); 3069 } 3070 3071 static void 3072 close_objset(objset_t *os, void *tag) 3073 { 3074 VERIFY3P(os, ==, sa_os); 3075 if (os->os_sa != NULL) 3076 sa_tear_down(os); 3077 dsl_dataset_long_rele(dmu_objset_ds(os), tag); 3078 dsl_dataset_rele(dmu_objset_ds(os), tag); 3079 sa_attr_table = NULL; 3080 sa_os = NULL; 3081 } 3082 3083 static void 3084 fuid_table_destroy(void) 3085 { 3086 if (fuid_table_loaded) { 3087 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 3088 fuid_table_loaded = B_FALSE; 3089 } 3090 } 3091 3092 /* 3093 * print uid or gid information. 3094 * For normal POSIX id just the id is printed in decimal format. 3095 * For CIFS files with FUID the fuid is printed in hex followed by 3096 * the domain-rid string. 3097 */ 3098 static void 3099 print_idstr(uint64_t id, const char *id_type) 3100 { 3101 if (FUID_INDEX(id)) { 3102 char *domain; 3103 3104 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 3105 (void) printf("\t%s %llx [%s-%d]\n", id_type, 3106 (u_longlong_t)id, domain, (int)FUID_RID(id)); 3107 } else { 3108 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 3109 } 3110 3111 } 3112 3113 static void 3114 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 3115 { 3116 uint32_t uid_idx, gid_idx; 3117 3118 uid_idx = FUID_INDEX(uid); 3119 gid_idx = FUID_INDEX(gid); 3120 3121 /* Load domain table, if not already loaded */ 3122 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 3123 uint64_t fuid_obj; 3124 3125 /* first find the fuid object. It lives in the master node */ 3126 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 3127 8, 1, &fuid_obj) == 0); 3128 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 3129 (void) zfs_fuid_table_load(os, fuid_obj, 3130 &idx_tree, &domain_tree); 3131 fuid_table_loaded = B_TRUE; 3132 } 3133 3134 print_idstr(uid, "uid"); 3135 print_idstr(gid, "gid"); 3136 } 3137 3138 static void 3139 dump_znode_sa_xattr(sa_handle_t *hdl) 3140 { 3141 nvlist_t *sa_xattr; 3142 nvpair_t *elem = NULL; 3143 int sa_xattr_size = 0; 3144 int sa_xattr_entries = 0; 3145 int error; 3146 char *sa_xattr_packed; 3147 3148 error = sa_size(hdl, sa_attr_table[ZPL_DXATTR], &sa_xattr_size); 3149 if (error || sa_xattr_size == 0) 3150 return; 3151 3152 sa_xattr_packed = malloc(sa_xattr_size); 3153 if (sa_xattr_packed == NULL) 3154 return; 3155 3156 error = sa_lookup(hdl, sa_attr_table[ZPL_DXATTR], 3157 sa_xattr_packed, sa_xattr_size); 3158 if (error) { 3159 free(sa_xattr_packed); 3160 return; 3161 } 3162 3163 error = nvlist_unpack(sa_xattr_packed, sa_xattr_size, &sa_xattr, 0); 3164 if (error) { 3165 free(sa_xattr_packed); 3166 return; 3167 } 3168 3169 while ((elem = nvlist_next_nvpair(sa_xattr, elem)) != NULL) 3170 sa_xattr_entries++; 3171 3172 (void) printf("\tSA xattrs: %d bytes, %d entries\n\n", 3173 sa_xattr_size, sa_xattr_entries); 3174 while ((elem = nvlist_next_nvpair(sa_xattr, elem)) != NULL) { 3175 uchar_t *value; 3176 uint_t cnt, idx; 3177 3178 (void) printf("\t\t%s = ", nvpair_name(elem)); 3179 nvpair_value_byte_array(elem, &value, &cnt); 3180 for (idx = 0; idx < cnt; ++idx) { 3181 if (isprint(value[idx])) 3182 (void) putchar(value[idx]); 3183 else 3184 (void) printf("\\%3.3o", value[idx]); 3185 } 3186 (void) putchar('\n'); 3187 } 3188 3189 nvlist_free(sa_xattr); 3190 free(sa_xattr_packed); 3191 } 3192 3193 static void 3194 dump_znode_symlink(sa_handle_t *hdl) 3195 { 3196 int sa_symlink_size = 0; 3197 char linktarget[MAXPATHLEN]; 3198 linktarget[0] = '\0'; 3199 int error; 3200 3201 error = sa_size(hdl, sa_attr_table[ZPL_SYMLINK], &sa_symlink_size); 3202 if (error || sa_symlink_size == 0) { 3203 return; 3204 } 3205 if (sa_lookup(hdl, sa_attr_table[ZPL_SYMLINK], 3206 &linktarget, sa_symlink_size) == 0) 3207 (void) printf("\ttarget %s\n", linktarget); 3208 } 3209 3210 static void 3211 dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 3212 { 3213 (void) data, (void) size; 3214 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 3215 sa_handle_t *hdl; 3216 uint64_t xattr, rdev, gen; 3217 uint64_t uid, gid, mode, fsize, parent, links; 3218 uint64_t pflags; 3219 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 3220 time_t z_crtime, z_atime, z_mtime, z_ctime; 3221 sa_bulk_attr_t bulk[12]; 3222 int idx = 0; 3223 int error; 3224 3225 VERIFY3P(os, ==, sa_os); 3226 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 3227 (void) printf("Failed to get handle for SA znode\n"); 3228 return; 3229 } 3230 3231 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 3232 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 3233 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 3234 &links, 8); 3235 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 3236 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 3237 &mode, 8); 3238 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 3239 NULL, &parent, 8); 3240 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 3241 &fsize, 8); 3242 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 3243 acctm, 16); 3244 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 3245 modtm, 16); 3246 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 3247 crtm, 16); 3248 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 3249 chgtm, 16); 3250 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 3251 &pflags, 8); 3252 3253 if (sa_bulk_lookup(hdl, bulk, idx)) { 3254 (void) sa_handle_destroy(hdl); 3255 return; 3256 } 3257 3258 z_crtime = (time_t)crtm[0]; 3259 z_atime = (time_t)acctm[0]; 3260 z_mtime = (time_t)modtm[0]; 3261 z_ctime = (time_t)chgtm[0]; 3262 3263 if (dump_opt['d'] > 4) { 3264 error = zfs_obj_to_path(os, object, path, sizeof (path)); 3265 if (error == ESTALE) { 3266 (void) snprintf(path, sizeof (path), "on delete queue"); 3267 } else if (error != 0) { 3268 leaked_objects++; 3269 (void) snprintf(path, sizeof (path), 3270 "path not found, possibly leaked"); 3271 } 3272 (void) printf("\tpath %s\n", path); 3273 } 3274 3275 if (S_ISLNK(mode)) 3276 dump_znode_symlink(hdl); 3277 dump_uidgid(os, uid, gid); 3278 (void) printf("\tatime %s", ctime(&z_atime)); 3279 (void) printf("\tmtime %s", ctime(&z_mtime)); 3280 (void) printf("\tctime %s", ctime(&z_ctime)); 3281 (void) printf("\tcrtime %s", ctime(&z_crtime)); 3282 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 3283 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 3284 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 3285 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 3286 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 3287 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 3288 if (dmu_objset_projectquota_enabled(os) && (pflags & ZFS_PROJID)) { 3289 uint64_t projid; 3290 3291 if (sa_lookup(hdl, sa_attr_table[ZPL_PROJID], &projid, 3292 sizeof (uint64_t)) == 0) 3293 (void) printf("\tprojid %llu\n", (u_longlong_t)projid); 3294 } 3295 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 3296 sizeof (uint64_t)) == 0) 3297 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 3298 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 3299 sizeof (uint64_t)) == 0) 3300 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 3301 dump_znode_sa_xattr(hdl); 3302 sa_handle_destroy(hdl); 3303 } 3304 3305 static void 3306 dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 3307 { 3308 (void) os, (void) object, (void) data, (void) size; 3309 } 3310 3311 static void 3312 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 3313 { 3314 (void) os, (void) object, (void) data, (void) size; 3315 } 3316 3317 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 3318 dump_none, /* unallocated */ 3319 dump_zap, /* object directory */ 3320 dump_uint64, /* object array */ 3321 dump_none, /* packed nvlist */ 3322 dump_packed_nvlist, /* packed nvlist size */ 3323 dump_none, /* bpobj */ 3324 dump_bpobj, /* bpobj header */ 3325 dump_none, /* SPA space map header */ 3326 dump_none, /* SPA space map */ 3327 dump_none, /* ZIL intent log */ 3328 dump_dnode, /* DMU dnode */ 3329 dump_dmu_objset, /* DMU objset */ 3330 dump_dsl_dir, /* DSL directory */ 3331 dump_zap, /* DSL directory child map */ 3332 dump_zap, /* DSL dataset snap map */ 3333 dump_zap, /* DSL props */ 3334 dump_dsl_dataset, /* DSL dataset */ 3335 dump_znode, /* ZFS znode */ 3336 dump_acl, /* ZFS V0 ACL */ 3337 dump_uint8, /* ZFS plain file */ 3338 dump_zpldir, /* ZFS directory */ 3339 dump_zap, /* ZFS master node */ 3340 dump_zap, /* ZFS delete queue */ 3341 dump_uint8, /* zvol object */ 3342 dump_zap, /* zvol prop */ 3343 dump_uint8, /* other uint8[] */ 3344 dump_uint64, /* other uint64[] */ 3345 dump_zap, /* other ZAP */ 3346 dump_zap, /* persistent error log */ 3347 dump_uint8, /* SPA history */ 3348 dump_history_offsets, /* SPA history offsets */ 3349 dump_zap, /* Pool properties */ 3350 dump_zap, /* DSL permissions */ 3351 dump_acl, /* ZFS ACL */ 3352 dump_uint8, /* ZFS SYSACL */ 3353 dump_none, /* FUID nvlist */ 3354 dump_packed_nvlist, /* FUID nvlist size */ 3355 dump_zap, /* DSL dataset next clones */ 3356 dump_zap, /* DSL scrub queue */ 3357 dump_zap, /* ZFS user/group/project used */ 3358 dump_zap, /* ZFS user/group/project quota */ 3359 dump_zap, /* snapshot refcount tags */ 3360 dump_ddt_zap, /* DDT ZAP object */ 3361 dump_zap, /* DDT statistics */ 3362 dump_znode, /* SA object */ 3363 dump_zap, /* SA Master Node */ 3364 dump_sa_attrs, /* SA attribute registration */ 3365 dump_sa_layouts, /* SA attribute layouts */ 3366 dump_zap, /* DSL scrub translations */ 3367 dump_none, /* fake dedup BP */ 3368 dump_zap, /* deadlist */ 3369 dump_none, /* deadlist hdr */ 3370 dump_zap, /* dsl clones */ 3371 dump_bpobj_subobjs, /* bpobj subobjs */ 3372 dump_unknown, /* Unknown type, must be last */ 3373 }; 3374 3375 static boolean_t 3376 match_object_type(dmu_object_type_t obj_type, uint64_t flags) 3377 { 3378 boolean_t match = B_TRUE; 3379 3380 switch (obj_type) { 3381 case DMU_OT_DIRECTORY_CONTENTS: 3382 if (!(flags & ZOR_FLAG_DIRECTORY)) 3383 match = B_FALSE; 3384 break; 3385 case DMU_OT_PLAIN_FILE_CONTENTS: 3386 if (!(flags & ZOR_FLAG_PLAIN_FILE)) 3387 match = B_FALSE; 3388 break; 3389 case DMU_OT_SPACE_MAP: 3390 if (!(flags & ZOR_FLAG_SPACE_MAP)) 3391 match = B_FALSE; 3392 break; 3393 default: 3394 if (strcmp(zdb_ot_name(obj_type), "zap") == 0) { 3395 if (!(flags & ZOR_FLAG_ZAP)) 3396 match = B_FALSE; 3397 break; 3398 } 3399 3400 /* 3401 * If all bits except some of the supported flags are 3402 * set, the user combined the all-types flag (A) with 3403 * a negated flag to exclude some types (e.g. A-f to 3404 * show all object types except plain files). 3405 */ 3406 if ((flags | ZOR_SUPPORTED_FLAGS) != ZOR_FLAG_ALL_TYPES) 3407 match = B_FALSE; 3408 3409 break; 3410 } 3411 3412 return (match); 3413 } 3414 3415 static void 3416 dump_object(objset_t *os, uint64_t object, int verbosity, 3417 boolean_t *print_header, uint64_t *dnode_slots_used, uint64_t flags) 3418 { 3419 dmu_buf_t *db = NULL; 3420 dmu_object_info_t doi; 3421 dnode_t *dn; 3422 boolean_t dnode_held = B_FALSE; 3423 void *bonus = NULL; 3424 size_t bsize = 0; 3425 char iblk[32], dblk[32], lsize[32], asize[32], fill[32], dnsize[32]; 3426 char bonus_size[32]; 3427 char aux[50]; 3428 int error; 3429 3430 /* make sure nicenum has enough space */ 3431 CTASSERT(sizeof (iblk) >= NN_NUMBUF_SZ); 3432 CTASSERT(sizeof (dblk) >= NN_NUMBUF_SZ); 3433 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ); 3434 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ); 3435 CTASSERT(sizeof (bonus_size) >= NN_NUMBUF_SZ); 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 CTASSERT(sizeof (segsize) >= NN_NUMBUF_SZ); 3585 error = dnode_next_offset(dn, 3586 0, &start, minlvl, blkfill, 0); 3587 if (error) 3588 break; 3589 end = start; 3590 error = dnode_next_offset(dn, 3591 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 3592 zdb_nicenum(end - start, segsize, sizeof (segsize)); 3593 (void) printf("\t\tsegment [%016llx, %016llx)" 3594 " size %5s\n", (u_longlong_t)start, 3595 (u_longlong_t)end, segsize); 3596 if (error) 3597 break; 3598 start = end; 3599 } 3600 } 3601 3602 out: 3603 if (db != NULL) 3604 dmu_buf_rele(db, FTAG); 3605 if (dnode_held) 3606 dnode_rele(dn, FTAG); 3607 } 3608 3609 static void 3610 count_dir_mos_objects(dsl_dir_t *dd) 3611 { 3612 mos_obj_refd(dd->dd_object); 3613 mos_obj_refd(dsl_dir_phys(dd)->dd_child_dir_zapobj); 3614 mos_obj_refd(dsl_dir_phys(dd)->dd_deleg_zapobj); 3615 mos_obj_refd(dsl_dir_phys(dd)->dd_props_zapobj); 3616 mos_obj_refd(dsl_dir_phys(dd)->dd_clones); 3617 3618 /* 3619 * The dd_crypto_obj can be referenced by multiple dsl_dir's. 3620 * Ignore the references after the first one. 3621 */ 3622 mos_obj_refd_multiple(dd->dd_crypto_obj); 3623 } 3624 3625 static void 3626 count_ds_mos_objects(dsl_dataset_t *ds) 3627 { 3628 mos_obj_refd(ds->ds_object); 3629 mos_obj_refd(dsl_dataset_phys(ds)->ds_next_clones_obj); 3630 mos_obj_refd(dsl_dataset_phys(ds)->ds_props_obj); 3631 mos_obj_refd(dsl_dataset_phys(ds)->ds_userrefs_obj); 3632 mos_obj_refd(dsl_dataset_phys(ds)->ds_snapnames_zapobj); 3633 mos_obj_refd(ds->ds_bookmarks_obj); 3634 3635 if (!dsl_dataset_is_snapshot(ds)) { 3636 count_dir_mos_objects(ds->ds_dir); 3637 } 3638 } 3639 3640 static const char *objset_types[DMU_OST_NUMTYPES] = { 3641 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 3642 3643 /* 3644 * Parse a string denoting a range of object IDs of the form 3645 * <start>[:<end>[:flags]], and store the results in zor. 3646 * Return 0 on success. On error, return 1 and update the msg 3647 * pointer to point to a descriptive error message. 3648 */ 3649 static int 3650 parse_object_range(char *range, zopt_object_range_t *zor, char **msg) 3651 { 3652 uint64_t flags = 0; 3653 char *p, *s, *dup, *flagstr, *tmp = NULL; 3654 size_t len; 3655 int i; 3656 int rc = 0; 3657 3658 if (strchr(range, ':') == NULL) { 3659 zor->zor_obj_start = strtoull(range, &p, 0); 3660 if (*p != '\0') { 3661 *msg = "Invalid characters in object ID"; 3662 rc = 1; 3663 } 3664 zor->zor_obj_start = ZDB_MAP_OBJECT_ID(zor->zor_obj_start); 3665 zor->zor_obj_end = zor->zor_obj_start; 3666 return (rc); 3667 } 3668 3669 if (strchr(range, ':') == range) { 3670 *msg = "Invalid leading colon"; 3671 rc = 1; 3672 return (rc); 3673 } 3674 3675 len = strlen(range); 3676 if (range[len - 1] == ':') { 3677 *msg = "Invalid trailing colon"; 3678 rc = 1; 3679 return (rc); 3680 } 3681 3682 dup = strdup(range); 3683 s = strtok_r(dup, ":", &tmp); 3684 zor->zor_obj_start = strtoull(s, &p, 0); 3685 3686 if (*p != '\0') { 3687 *msg = "Invalid characters in start object ID"; 3688 rc = 1; 3689 goto out; 3690 } 3691 3692 s = strtok_r(NULL, ":", &tmp); 3693 zor->zor_obj_end = strtoull(s, &p, 0); 3694 3695 if (*p != '\0') { 3696 *msg = "Invalid characters in end object ID"; 3697 rc = 1; 3698 goto out; 3699 } 3700 3701 if (zor->zor_obj_start > zor->zor_obj_end) { 3702 *msg = "Start object ID may not exceed end object ID"; 3703 rc = 1; 3704 goto out; 3705 } 3706 3707 s = strtok_r(NULL, ":", &tmp); 3708 if (s == NULL) { 3709 zor->zor_flags = ZOR_FLAG_ALL_TYPES; 3710 goto out; 3711 } else if (strtok_r(NULL, ":", &tmp) != NULL) { 3712 *msg = "Invalid colon-delimited field after flags"; 3713 rc = 1; 3714 goto out; 3715 } 3716 3717 flagstr = s; 3718 for (i = 0; flagstr[i]; i++) { 3719 int bit; 3720 boolean_t negation = (flagstr[i] == '-'); 3721 3722 if (negation) { 3723 i++; 3724 if (flagstr[i] == '\0') { 3725 *msg = "Invalid trailing negation operator"; 3726 rc = 1; 3727 goto out; 3728 } 3729 } 3730 bit = flagbits[(uchar_t)flagstr[i]]; 3731 if (bit == 0) { 3732 *msg = "Invalid flag"; 3733 rc = 1; 3734 goto out; 3735 } 3736 if (negation) 3737 flags &= ~bit; 3738 else 3739 flags |= bit; 3740 } 3741 zor->zor_flags = flags; 3742 3743 zor->zor_obj_start = ZDB_MAP_OBJECT_ID(zor->zor_obj_start); 3744 zor->zor_obj_end = ZDB_MAP_OBJECT_ID(zor->zor_obj_end); 3745 3746 out: 3747 free(dup); 3748 return (rc); 3749 } 3750 3751 static void 3752 dump_objset(objset_t *os) 3753 { 3754 dmu_objset_stats_t dds = { 0 }; 3755 uint64_t object, object_count; 3756 uint64_t refdbytes, usedobjs, scratch; 3757 char numbuf[32]; 3758 char blkbuf[BP_SPRINTF_LEN + 20]; 3759 char osname[ZFS_MAX_DATASET_NAME_LEN]; 3760 const char *type = "UNKNOWN"; 3761 int verbosity = dump_opt['d']; 3762 boolean_t print_header; 3763 unsigned i; 3764 int error; 3765 uint64_t total_slots_used = 0; 3766 uint64_t max_slot_used = 0; 3767 uint64_t dnode_slots; 3768 uint64_t obj_start; 3769 uint64_t obj_end; 3770 uint64_t flags; 3771 3772 /* make sure nicenum has enough space */ 3773 CTASSERT(sizeof (numbuf) >= NN_NUMBUF_SZ); 3774 3775 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 3776 dmu_objset_fast_stat(os, &dds); 3777 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 3778 3779 print_header = B_TRUE; 3780 3781 if (dds.dds_type < DMU_OST_NUMTYPES) 3782 type = objset_types[dds.dds_type]; 3783 3784 if (dds.dds_type == DMU_OST_META) { 3785 dds.dds_creation_txg = TXG_INITIAL; 3786 usedobjs = BP_GET_FILL(os->os_rootbp); 3787 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)-> 3788 dd_used_bytes; 3789 } else { 3790 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 3791 } 3792 3793 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp)); 3794 3795 zdb_nicenum(refdbytes, numbuf, sizeof (numbuf)); 3796 3797 if (verbosity >= 4) { 3798 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp "); 3799 (void) snprintf_blkptr(blkbuf + strlen(blkbuf), 3800 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp); 3801 } else { 3802 blkbuf[0] = '\0'; 3803 } 3804 3805 dmu_objset_name(os, osname); 3806 3807 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 3808 "%s, %llu objects%s%s\n", 3809 osname, type, (u_longlong_t)dmu_objset_id(os), 3810 (u_longlong_t)dds.dds_creation_txg, 3811 numbuf, (u_longlong_t)usedobjs, blkbuf, 3812 (dds.dds_inconsistent) ? " (inconsistent)" : ""); 3813 3814 for (i = 0; i < zopt_object_args; i++) { 3815 obj_start = zopt_object_ranges[i].zor_obj_start; 3816 obj_end = zopt_object_ranges[i].zor_obj_end; 3817 flags = zopt_object_ranges[i].zor_flags; 3818 3819 object = obj_start; 3820 if (object == 0 || obj_start == obj_end) 3821 dump_object(os, object, verbosity, &print_header, NULL, 3822 flags); 3823 else 3824 object--; 3825 3826 while ((dmu_object_next(os, &object, B_FALSE, 0) == 0) && 3827 object <= obj_end) { 3828 dump_object(os, object, verbosity, &print_header, NULL, 3829 flags); 3830 } 3831 } 3832 3833 if (zopt_object_args > 0) { 3834 (void) printf("\n"); 3835 return; 3836 } 3837 3838 if (dump_opt['i'] != 0 || verbosity >= 2) 3839 dump_intent_log(dmu_objset_zil(os)); 3840 3841 if (dmu_objset_ds(os) != NULL) { 3842 dsl_dataset_t *ds = dmu_objset_ds(os); 3843 dump_blkptr_list(&ds->ds_deadlist, "Deadlist"); 3844 if (dsl_deadlist_is_open(&ds->ds_dir->dd_livelist) && 3845 !dmu_objset_is_snapshot(os)) { 3846 dump_blkptr_list(&ds->ds_dir->dd_livelist, "Livelist"); 3847 if (verify_dd_livelist(os) != 0) 3848 fatal("livelist is incorrect"); 3849 } 3850 3851 if (dsl_dataset_remap_deadlist_exists(ds)) { 3852 (void) printf("ds_remap_deadlist:\n"); 3853 dump_blkptr_list(&ds->ds_remap_deadlist, "Deadlist"); 3854 } 3855 count_ds_mos_objects(ds); 3856 } 3857 3858 if (dmu_objset_ds(os) != NULL) 3859 dump_bookmarks(os, verbosity); 3860 3861 if (verbosity < 2) 3862 return; 3863 3864 if (BP_IS_HOLE(os->os_rootbp)) 3865 return; 3866 3867 dump_object(os, 0, verbosity, &print_header, NULL, 0); 3868 object_count = 0; 3869 if (DMU_USERUSED_DNODE(os) != NULL && 3870 DMU_USERUSED_DNODE(os)->dn_type != 0) { 3871 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header, 3872 NULL, 0); 3873 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header, 3874 NULL, 0); 3875 } 3876 3877 if (DMU_PROJECTUSED_DNODE(os) != NULL && 3878 DMU_PROJECTUSED_DNODE(os)->dn_type != 0) 3879 dump_object(os, DMU_PROJECTUSED_OBJECT, verbosity, 3880 &print_header, NULL, 0); 3881 3882 object = 0; 3883 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 3884 dump_object(os, object, verbosity, &print_header, &dnode_slots, 3885 0); 3886 object_count++; 3887 total_slots_used += dnode_slots; 3888 max_slot_used = object + dnode_slots - 1; 3889 } 3890 3891 (void) printf("\n"); 3892 3893 (void) printf(" Dnode slots:\n"); 3894 (void) printf("\tTotal used: %10llu\n", 3895 (u_longlong_t)total_slots_used); 3896 (void) printf("\tMax used: %10llu\n", 3897 (u_longlong_t)max_slot_used); 3898 (void) printf("\tPercent empty: %10lf\n", 3899 (double)(max_slot_used - total_slots_used)*100 / 3900 (double)max_slot_used); 3901 (void) printf("\n"); 3902 3903 if (error != ESRCH) { 3904 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 3905 abort(); 3906 } 3907 3908 ASSERT3U(object_count, ==, usedobjs); 3909 3910 if (leaked_objects != 0) { 3911 (void) printf("%d potentially leaked objects detected\n", 3912 leaked_objects); 3913 leaked_objects = 0; 3914 } 3915 } 3916 3917 static void 3918 dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 3919 { 3920 time_t timestamp = ub->ub_timestamp; 3921 3922 (void) printf("%s", header ? header : ""); 3923 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 3924 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 3925 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 3926 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 3927 (void) printf("\ttimestamp = %llu UTC = %s", 3928 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 3929 3930 (void) printf("\tmmp_magic = %016llx\n", 3931 (u_longlong_t)ub->ub_mmp_magic); 3932 if (MMP_VALID(ub)) { 3933 (void) printf("\tmmp_delay = %0llu\n", 3934 (u_longlong_t)ub->ub_mmp_delay); 3935 if (MMP_SEQ_VALID(ub)) 3936 (void) printf("\tmmp_seq = %u\n", 3937 (unsigned int) MMP_SEQ(ub)); 3938 if (MMP_FAIL_INT_VALID(ub)) 3939 (void) printf("\tmmp_fail = %u\n", 3940 (unsigned int) MMP_FAIL_INT(ub)); 3941 if (MMP_INTERVAL_VALID(ub)) 3942 (void) printf("\tmmp_write = %u\n", 3943 (unsigned int) MMP_INTERVAL(ub)); 3944 /* After MMP_* to make summarize_uberblock_mmp cleaner */ 3945 (void) printf("\tmmp_valid = %x\n", 3946 (unsigned int) ub->ub_mmp_config & 0xFF); 3947 } 3948 3949 if (dump_opt['u'] >= 4) { 3950 char blkbuf[BP_SPRINTF_LEN]; 3951 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp); 3952 (void) printf("\trootbp = %s\n", blkbuf); 3953 } 3954 (void) printf("\tcheckpoint_txg = %llu\n", 3955 (u_longlong_t)ub->ub_checkpoint_txg); 3956 (void) printf("%s", footer ? footer : ""); 3957 } 3958 3959 static void 3960 dump_config(spa_t *spa) 3961 { 3962 dmu_buf_t *db; 3963 size_t nvsize = 0; 3964 int error = 0; 3965 3966 3967 error = dmu_bonus_hold(spa->spa_meta_objset, 3968 spa->spa_config_object, FTAG, &db); 3969 3970 if (error == 0) { 3971 nvsize = *(uint64_t *)db->db_data; 3972 dmu_buf_rele(db, FTAG); 3973 3974 (void) printf("\nMOS Configuration:\n"); 3975 dump_packed_nvlist(spa->spa_meta_objset, 3976 spa->spa_config_object, (void *)&nvsize, 1); 3977 } else { 3978 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 3979 (u_longlong_t)spa->spa_config_object, error); 3980 } 3981 } 3982 3983 static void 3984 dump_cachefile(const char *cachefile) 3985 { 3986 int fd; 3987 struct stat64 statbuf; 3988 char *buf; 3989 nvlist_t *config; 3990 3991 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 3992 (void) printf("cannot open '%s': %s\n", cachefile, 3993 strerror(errno)); 3994 exit(1); 3995 } 3996 3997 if (fstat64(fd, &statbuf) != 0) { 3998 (void) printf("failed to stat '%s': %s\n", cachefile, 3999 strerror(errno)); 4000 exit(1); 4001 } 4002 4003 if ((buf = malloc(statbuf.st_size)) == NULL) { 4004 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 4005 (u_longlong_t)statbuf.st_size); 4006 exit(1); 4007 } 4008 4009 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 4010 (void) fprintf(stderr, "failed to read %llu bytes\n", 4011 (u_longlong_t)statbuf.st_size); 4012 exit(1); 4013 } 4014 4015 (void) close(fd); 4016 4017 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 4018 (void) fprintf(stderr, "failed to unpack nvlist\n"); 4019 exit(1); 4020 } 4021 4022 free(buf); 4023 4024 dump_nvlist(config, 0); 4025 4026 nvlist_free(config); 4027 } 4028 4029 /* 4030 * ZFS label nvlist stats 4031 */ 4032 typedef struct zdb_nvl_stats { 4033 int zns_list_count; 4034 int zns_leaf_count; 4035 size_t zns_leaf_largest; 4036 size_t zns_leaf_total; 4037 nvlist_t *zns_string; 4038 nvlist_t *zns_uint64; 4039 nvlist_t *zns_boolean; 4040 } zdb_nvl_stats_t; 4041 4042 static void 4043 collect_nvlist_stats(nvlist_t *nvl, zdb_nvl_stats_t *stats) 4044 { 4045 nvlist_t *list, **array; 4046 nvpair_t *nvp = NULL; 4047 char *name; 4048 uint_t i, items; 4049 4050 stats->zns_list_count++; 4051 4052 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4053 name = nvpair_name(nvp); 4054 4055 switch (nvpair_type(nvp)) { 4056 case DATA_TYPE_STRING: 4057 fnvlist_add_string(stats->zns_string, name, 4058 fnvpair_value_string(nvp)); 4059 break; 4060 case DATA_TYPE_UINT64: 4061 fnvlist_add_uint64(stats->zns_uint64, name, 4062 fnvpair_value_uint64(nvp)); 4063 break; 4064 case DATA_TYPE_BOOLEAN: 4065 fnvlist_add_boolean(stats->zns_boolean, name); 4066 break; 4067 case DATA_TYPE_NVLIST: 4068 if (nvpair_value_nvlist(nvp, &list) == 0) 4069 collect_nvlist_stats(list, stats); 4070 break; 4071 case DATA_TYPE_NVLIST_ARRAY: 4072 if (nvpair_value_nvlist_array(nvp, &array, &items) != 0) 4073 break; 4074 4075 for (i = 0; i < items; i++) { 4076 collect_nvlist_stats(array[i], stats); 4077 4078 /* collect stats on leaf vdev */ 4079 if (strcmp(name, "children") == 0) { 4080 size_t size; 4081 4082 (void) nvlist_size(array[i], &size, 4083 NV_ENCODE_XDR); 4084 stats->zns_leaf_total += size; 4085 if (size > stats->zns_leaf_largest) 4086 stats->zns_leaf_largest = size; 4087 stats->zns_leaf_count++; 4088 } 4089 } 4090 break; 4091 default: 4092 (void) printf("skip type %d!\n", (int)nvpair_type(nvp)); 4093 } 4094 } 4095 } 4096 4097 static void 4098 dump_nvlist_stats(nvlist_t *nvl, size_t cap) 4099 { 4100 zdb_nvl_stats_t stats = { 0 }; 4101 size_t size, sum = 0, total; 4102 size_t noise; 4103 4104 /* requires nvlist with non-unique names for stat collection */ 4105 VERIFY0(nvlist_alloc(&stats.zns_string, 0, 0)); 4106 VERIFY0(nvlist_alloc(&stats.zns_uint64, 0, 0)); 4107 VERIFY0(nvlist_alloc(&stats.zns_boolean, 0, 0)); 4108 VERIFY0(nvlist_size(stats.zns_boolean, &noise, NV_ENCODE_XDR)); 4109 4110 (void) printf("\n\nZFS Label NVList Config Stats:\n"); 4111 4112 VERIFY0(nvlist_size(nvl, &total, NV_ENCODE_XDR)); 4113 (void) printf(" %d bytes used, %d bytes free (using %4.1f%%)\n\n", 4114 (int)total, (int)(cap - total), 100.0 * total / cap); 4115 4116 collect_nvlist_stats(nvl, &stats); 4117 4118 VERIFY0(nvlist_size(stats.zns_uint64, &size, NV_ENCODE_XDR)); 4119 size -= noise; 4120 sum += size; 4121 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n", "integers:", 4122 (int)fnvlist_num_pairs(stats.zns_uint64), 4123 (int)size, 100.0 * size / total); 4124 4125 VERIFY0(nvlist_size(stats.zns_string, &size, NV_ENCODE_XDR)); 4126 size -= noise; 4127 sum += size; 4128 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n", "strings:", 4129 (int)fnvlist_num_pairs(stats.zns_string), 4130 (int)size, 100.0 * size / total); 4131 4132 VERIFY0(nvlist_size(stats.zns_boolean, &size, NV_ENCODE_XDR)); 4133 size -= noise; 4134 sum += size; 4135 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n", "booleans:", 4136 (int)fnvlist_num_pairs(stats.zns_boolean), 4137 (int)size, 100.0 * size / total); 4138 4139 size = total - sum; /* treat remainder as nvlist overhead */ 4140 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n\n", "nvlists:", 4141 stats.zns_list_count, (int)size, 100.0 * size / total); 4142 4143 if (stats.zns_leaf_count > 0) { 4144 size_t average = stats.zns_leaf_total / stats.zns_leaf_count; 4145 4146 (void) printf("%12s %4d %6d bytes average\n", "leaf vdevs:", 4147 stats.zns_leaf_count, (int)average); 4148 (void) printf("%24d bytes largest\n", 4149 (int)stats.zns_leaf_largest); 4150 4151 if (dump_opt['l'] >= 3 && average > 0) 4152 (void) printf(" space for %d additional leaf vdevs\n", 4153 (int)((cap - total) / average)); 4154 } 4155 (void) printf("\n"); 4156 4157 nvlist_free(stats.zns_string); 4158 nvlist_free(stats.zns_uint64); 4159 nvlist_free(stats.zns_boolean); 4160 } 4161 4162 typedef struct cksum_record { 4163 zio_cksum_t cksum; 4164 boolean_t labels[VDEV_LABELS]; 4165 avl_node_t link; 4166 } cksum_record_t; 4167 4168 static int 4169 cksum_record_compare(const void *x1, const void *x2) 4170 { 4171 const cksum_record_t *l = (cksum_record_t *)x1; 4172 const cksum_record_t *r = (cksum_record_t *)x2; 4173 int arraysize = ARRAY_SIZE(l->cksum.zc_word); 4174 int difference = 0; 4175 4176 for (int i = 0; i < arraysize; i++) { 4177 difference = TREE_CMP(l->cksum.zc_word[i], r->cksum.zc_word[i]); 4178 if (difference) 4179 break; 4180 } 4181 4182 return (difference); 4183 } 4184 4185 static cksum_record_t * 4186 cksum_record_alloc(zio_cksum_t *cksum, int l) 4187 { 4188 cksum_record_t *rec; 4189 4190 rec = umem_zalloc(sizeof (*rec), UMEM_NOFAIL); 4191 rec->cksum = *cksum; 4192 rec->labels[l] = B_TRUE; 4193 4194 return (rec); 4195 } 4196 4197 static cksum_record_t * 4198 cksum_record_lookup(avl_tree_t *tree, zio_cksum_t *cksum) 4199 { 4200 cksum_record_t lookup = { .cksum = *cksum }; 4201 avl_index_t where; 4202 4203 return (avl_find(tree, &lookup, &where)); 4204 } 4205 4206 static cksum_record_t * 4207 cksum_record_insert(avl_tree_t *tree, zio_cksum_t *cksum, int l) 4208 { 4209 cksum_record_t *rec; 4210 4211 rec = cksum_record_lookup(tree, cksum); 4212 if (rec) { 4213 rec->labels[l] = B_TRUE; 4214 } else { 4215 rec = cksum_record_alloc(cksum, l); 4216 avl_add(tree, rec); 4217 } 4218 4219 return (rec); 4220 } 4221 4222 static int 4223 first_label(cksum_record_t *rec) 4224 { 4225 for (int i = 0; i < VDEV_LABELS; i++) 4226 if (rec->labels[i]) 4227 return (i); 4228 4229 return (-1); 4230 } 4231 4232 static void 4233 print_label_numbers(char *prefix, cksum_record_t *rec) 4234 { 4235 printf("%s", prefix); 4236 for (int i = 0; i < VDEV_LABELS; i++) 4237 if (rec->labels[i] == B_TRUE) 4238 printf("%d ", i); 4239 printf("\n"); 4240 } 4241 4242 #define MAX_UBERBLOCK_COUNT (VDEV_UBERBLOCK_RING >> UBERBLOCK_SHIFT) 4243 4244 typedef struct zdb_label { 4245 vdev_label_t label; 4246 uint64_t label_offset; 4247 nvlist_t *config_nv; 4248 cksum_record_t *config; 4249 cksum_record_t *uberblocks[MAX_UBERBLOCK_COUNT]; 4250 boolean_t header_printed; 4251 boolean_t read_failed; 4252 boolean_t cksum_valid; 4253 } zdb_label_t; 4254 4255 static void 4256 print_label_header(zdb_label_t *label, int l) 4257 { 4258 4259 if (dump_opt['q']) 4260 return; 4261 4262 if (label->header_printed == B_TRUE) 4263 return; 4264 4265 (void) printf("------------------------------------\n"); 4266 (void) printf("LABEL %d %s\n", l, 4267 label->cksum_valid ? "" : "(Bad label cksum)"); 4268 (void) printf("------------------------------------\n"); 4269 4270 label->header_printed = B_TRUE; 4271 } 4272 4273 static void 4274 print_l2arc_header(void) 4275 { 4276 (void) printf("------------------------------------\n"); 4277 (void) printf("L2ARC device header\n"); 4278 (void) printf("------------------------------------\n"); 4279 } 4280 4281 static void 4282 print_l2arc_log_blocks(void) 4283 { 4284 (void) printf("------------------------------------\n"); 4285 (void) printf("L2ARC device log blocks\n"); 4286 (void) printf("------------------------------------\n"); 4287 } 4288 4289 static void 4290 dump_l2arc_log_entries(uint64_t log_entries, 4291 l2arc_log_ent_phys_t *le, uint64_t i) 4292 { 4293 for (int j = 0; j < log_entries; j++) { 4294 dva_t dva = le[j].le_dva; 4295 (void) printf("lb[%4llu]\tle[%4d]\tDVA asize: %llu, " 4296 "vdev: %llu, offset: %llu\n", 4297 (u_longlong_t)i, j + 1, 4298 (u_longlong_t)DVA_GET_ASIZE(&dva), 4299 (u_longlong_t)DVA_GET_VDEV(&dva), 4300 (u_longlong_t)DVA_GET_OFFSET(&dva)); 4301 (void) printf("|\t\t\t\tbirth: %llu\n", 4302 (u_longlong_t)le[j].le_birth); 4303 (void) printf("|\t\t\t\tlsize: %llu\n", 4304 (u_longlong_t)L2BLK_GET_LSIZE((&le[j])->le_prop)); 4305 (void) printf("|\t\t\t\tpsize: %llu\n", 4306 (u_longlong_t)L2BLK_GET_PSIZE((&le[j])->le_prop)); 4307 (void) printf("|\t\t\t\tcompr: %llu\n", 4308 (u_longlong_t)L2BLK_GET_COMPRESS((&le[j])->le_prop)); 4309 (void) printf("|\t\t\t\tcomplevel: %llu\n", 4310 (u_longlong_t)(&le[j])->le_complevel); 4311 (void) printf("|\t\t\t\ttype: %llu\n", 4312 (u_longlong_t)L2BLK_GET_TYPE((&le[j])->le_prop)); 4313 (void) printf("|\t\t\t\tprotected: %llu\n", 4314 (u_longlong_t)L2BLK_GET_PROTECTED((&le[j])->le_prop)); 4315 (void) printf("|\t\t\t\tprefetch: %llu\n", 4316 (u_longlong_t)L2BLK_GET_PREFETCH((&le[j])->le_prop)); 4317 (void) printf("|\t\t\t\taddress: %llu\n", 4318 (u_longlong_t)le[j].le_daddr); 4319 (void) printf("|\t\t\t\tARC state: %llu\n", 4320 (u_longlong_t)L2BLK_GET_STATE((&le[j])->le_prop)); 4321 (void) printf("|\n"); 4322 } 4323 (void) printf("\n"); 4324 } 4325 4326 static void 4327 dump_l2arc_log_blkptr(l2arc_log_blkptr_t lbps) 4328 { 4329 (void) printf("|\t\tdaddr: %llu\n", (u_longlong_t)lbps.lbp_daddr); 4330 (void) printf("|\t\tpayload_asize: %llu\n", 4331 (u_longlong_t)lbps.lbp_payload_asize); 4332 (void) printf("|\t\tpayload_start: %llu\n", 4333 (u_longlong_t)lbps.lbp_payload_start); 4334 (void) printf("|\t\tlsize: %llu\n", 4335 (u_longlong_t)L2BLK_GET_LSIZE((&lbps)->lbp_prop)); 4336 (void) printf("|\t\tasize: %llu\n", 4337 (u_longlong_t)L2BLK_GET_PSIZE((&lbps)->lbp_prop)); 4338 (void) printf("|\t\tcompralgo: %llu\n", 4339 (u_longlong_t)L2BLK_GET_COMPRESS((&lbps)->lbp_prop)); 4340 (void) printf("|\t\tcksumalgo: %llu\n", 4341 (u_longlong_t)L2BLK_GET_CHECKSUM((&lbps)->lbp_prop)); 4342 (void) printf("|\n\n"); 4343 } 4344 4345 static void 4346 dump_l2arc_log_blocks(int fd, l2arc_dev_hdr_phys_t l2dhdr, 4347 l2arc_dev_hdr_phys_t *rebuild) 4348 { 4349 l2arc_log_blk_phys_t this_lb; 4350 uint64_t asize; 4351 l2arc_log_blkptr_t lbps[2]; 4352 abd_t *abd; 4353 zio_cksum_t cksum; 4354 int failed = 0; 4355 l2arc_dev_t dev; 4356 4357 if (!dump_opt['q']) 4358 print_l2arc_log_blocks(); 4359 bcopy((&l2dhdr)->dh_start_lbps, lbps, sizeof (lbps)); 4360 4361 dev.l2ad_evict = l2dhdr.dh_evict; 4362 dev.l2ad_start = l2dhdr.dh_start; 4363 dev.l2ad_end = l2dhdr.dh_end; 4364 4365 if (l2dhdr.dh_start_lbps[0].lbp_daddr == 0) { 4366 /* no log blocks to read */ 4367 if (!dump_opt['q']) { 4368 (void) printf("No log blocks to read\n"); 4369 (void) printf("\n"); 4370 } 4371 return; 4372 } else { 4373 dev.l2ad_hand = lbps[0].lbp_daddr + 4374 L2BLK_GET_PSIZE((&lbps[0])->lbp_prop); 4375 } 4376 4377 dev.l2ad_first = !!(l2dhdr.dh_flags & L2ARC_DEV_HDR_EVICT_FIRST); 4378 4379 for (;;) { 4380 if (!l2arc_log_blkptr_valid(&dev, &lbps[0])) 4381 break; 4382 4383 /* L2BLK_GET_PSIZE returns aligned size for log blocks */ 4384 asize = L2BLK_GET_PSIZE((&lbps[0])->lbp_prop); 4385 if (pread64(fd, &this_lb, asize, lbps[0].lbp_daddr) != asize) { 4386 if (!dump_opt['q']) { 4387 (void) printf("Error while reading next log " 4388 "block\n\n"); 4389 } 4390 break; 4391 } 4392 4393 fletcher_4_native_varsize(&this_lb, asize, &cksum); 4394 if (!ZIO_CHECKSUM_EQUAL(cksum, lbps[0].lbp_cksum)) { 4395 failed++; 4396 if (!dump_opt['q']) { 4397 (void) printf("Invalid cksum\n"); 4398 dump_l2arc_log_blkptr(lbps[0]); 4399 } 4400 break; 4401 } 4402 4403 switch (L2BLK_GET_COMPRESS((&lbps[0])->lbp_prop)) { 4404 case ZIO_COMPRESS_OFF: 4405 break; 4406 default: 4407 abd = abd_alloc_for_io(asize, B_TRUE); 4408 abd_copy_from_buf_off(abd, &this_lb, 0, asize); 4409 zio_decompress_data(L2BLK_GET_COMPRESS( 4410 (&lbps[0])->lbp_prop), abd, &this_lb, 4411 asize, sizeof (this_lb), NULL); 4412 abd_free(abd); 4413 break; 4414 } 4415 4416 if (this_lb.lb_magic == BSWAP_64(L2ARC_LOG_BLK_MAGIC)) 4417 byteswap_uint64_array(&this_lb, sizeof (this_lb)); 4418 if (this_lb.lb_magic != L2ARC_LOG_BLK_MAGIC) { 4419 if (!dump_opt['q']) 4420 (void) printf("Invalid log block magic\n\n"); 4421 break; 4422 } 4423 4424 rebuild->dh_lb_count++; 4425 rebuild->dh_lb_asize += asize; 4426 if (dump_opt['l'] > 1 && !dump_opt['q']) { 4427 (void) printf("lb[%4llu]\tmagic: %llu\n", 4428 (u_longlong_t)rebuild->dh_lb_count, 4429 (u_longlong_t)this_lb.lb_magic); 4430 dump_l2arc_log_blkptr(lbps[0]); 4431 } 4432 4433 if (dump_opt['l'] > 2 && !dump_opt['q']) 4434 dump_l2arc_log_entries(l2dhdr.dh_log_entries, 4435 this_lb.lb_entries, 4436 rebuild->dh_lb_count); 4437 4438 if (l2arc_range_check_overlap(lbps[1].lbp_payload_start, 4439 lbps[0].lbp_payload_start, dev.l2ad_evict) && 4440 !dev.l2ad_first) 4441 break; 4442 4443 lbps[0] = lbps[1]; 4444 lbps[1] = this_lb.lb_prev_lbp; 4445 } 4446 4447 if (!dump_opt['q']) { 4448 (void) printf("log_blk_count:\t %llu with valid cksum\n", 4449 (u_longlong_t)rebuild->dh_lb_count); 4450 (void) printf("\t\t %d with invalid cksum\n", failed); 4451 (void) printf("log_blk_asize:\t %llu\n\n", 4452 (u_longlong_t)rebuild->dh_lb_asize); 4453 } 4454 } 4455 4456 static int 4457 dump_l2arc_header(int fd) 4458 { 4459 l2arc_dev_hdr_phys_t l2dhdr, rebuild; 4460 int error = B_FALSE; 4461 4462 bzero(&l2dhdr, sizeof (l2dhdr)); 4463 bzero(&rebuild, sizeof (rebuild)); 4464 4465 if (pread64(fd, &l2dhdr, sizeof (l2dhdr), 4466 VDEV_LABEL_START_SIZE) != sizeof (l2dhdr)) { 4467 error = B_TRUE; 4468 } else { 4469 if (l2dhdr.dh_magic == BSWAP_64(L2ARC_DEV_HDR_MAGIC)) 4470 byteswap_uint64_array(&l2dhdr, sizeof (l2dhdr)); 4471 4472 if (l2dhdr.dh_magic != L2ARC_DEV_HDR_MAGIC) 4473 error = B_TRUE; 4474 } 4475 4476 if (error) { 4477 (void) printf("L2ARC device header not found\n\n"); 4478 /* Do not return an error here for backward compatibility */ 4479 return (0); 4480 } else if (!dump_opt['q']) { 4481 print_l2arc_header(); 4482 4483 (void) printf(" magic: %llu\n", 4484 (u_longlong_t)l2dhdr.dh_magic); 4485 (void) printf(" version: %llu\n", 4486 (u_longlong_t)l2dhdr.dh_version); 4487 (void) printf(" pool_guid: %llu\n", 4488 (u_longlong_t)l2dhdr.dh_spa_guid); 4489 (void) printf(" flags: %llu\n", 4490 (u_longlong_t)l2dhdr.dh_flags); 4491 (void) printf(" start_lbps[0]: %llu\n", 4492 (u_longlong_t) 4493 l2dhdr.dh_start_lbps[0].lbp_daddr); 4494 (void) printf(" start_lbps[1]: %llu\n", 4495 (u_longlong_t) 4496 l2dhdr.dh_start_lbps[1].lbp_daddr); 4497 (void) printf(" log_blk_ent: %llu\n", 4498 (u_longlong_t)l2dhdr.dh_log_entries); 4499 (void) printf(" start: %llu\n", 4500 (u_longlong_t)l2dhdr.dh_start); 4501 (void) printf(" end: %llu\n", 4502 (u_longlong_t)l2dhdr.dh_end); 4503 (void) printf(" evict: %llu\n", 4504 (u_longlong_t)l2dhdr.dh_evict); 4505 (void) printf(" lb_asize_refcount: %llu\n", 4506 (u_longlong_t)l2dhdr.dh_lb_asize); 4507 (void) printf(" lb_count_refcount: %llu\n", 4508 (u_longlong_t)l2dhdr.dh_lb_count); 4509 (void) printf(" trim_action_time: %llu\n", 4510 (u_longlong_t)l2dhdr.dh_trim_action_time); 4511 (void) printf(" trim_state: %llu\n\n", 4512 (u_longlong_t)l2dhdr.dh_trim_state); 4513 } 4514 4515 dump_l2arc_log_blocks(fd, l2dhdr, &rebuild); 4516 /* 4517 * The total aligned size of log blocks and the number of log blocks 4518 * reported in the header of the device may be less than what zdb 4519 * reports by dump_l2arc_log_blocks() which emulates l2arc_rebuild(). 4520 * This happens because dump_l2arc_log_blocks() lacks the memory 4521 * pressure valve that l2arc_rebuild() has. Thus, if we are on a system 4522 * with low memory, l2arc_rebuild will exit prematurely and dh_lb_asize 4523 * and dh_lb_count will be lower to begin with than what exists on the 4524 * device. This is normal and zdb should not exit with an error. The 4525 * opposite case should never happen though, the values reported in the 4526 * header should never be higher than what dump_l2arc_log_blocks() and 4527 * l2arc_rebuild() report. If this happens there is a leak in the 4528 * accounting of log blocks. 4529 */ 4530 if (l2dhdr.dh_lb_asize > rebuild.dh_lb_asize || 4531 l2dhdr.dh_lb_count > rebuild.dh_lb_count) 4532 return (1); 4533 4534 return (0); 4535 } 4536 4537 static void 4538 dump_config_from_label(zdb_label_t *label, size_t buflen, int l) 4539 { 4540 if (dump_opt['q']) 4541 return; 4542 4543 if ((dump_opt['l'] < 3) && (first_label(label->config) != l)) 4544 return; 4545 4546 print_label_header(label, l); 4547 dump_nvlist(label->config_nv, 4); 4548 print_label_numbers(" labels = ", label->config); 4549 4550 if (dump_opt['l'] >= 2) 4551 dump_nvlist_stats(label->config_nv, buflen); 4552 } 4553 4554 #define ZDB_MAX_UB_HEADER_SIZE 32 4555 4556 static void 4557 dump_label_uberblocks(zdb_label_t *label, uint64_t ashift, int label_num) 4558 { 4559 4560 vdev_t vd; 4561 char header[ZDB_MAX_UB_HEADER_SIZE]; 4562 4563 vd.vdev_ashift = ashift; 4564 vd.vdev_top = &vd; 4565 4566 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(&vd); i++) { 4567 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(&vd, i); 4568 uberblock_t *ub = (void *)((char *)&label->label + uoff); 4569 cksum_record_t *rec = label->uberblocks[i]; 4570 4571 if (rec == NULL) { 4572 if (dump_opt['u'] >= 2) { 4573 print_label_header(label, label_num); 4574 (void) printf(" Uberblock[%d] invalid\n", i); 4575 } 4576 continue; 4577 } 4578 4579 if ((dump_opt['u'] < 3) && (first_label(rec) != label_num)) 4580 continue; 4581 4582 if ((dump_opt['u'] < 4) && 4583 (ub->ub_mmp_magic == MMP_MAGIC) && ub->ub_mmp_delay && 4584 (i >= VDEV_UBERBLOCK_COUNT(&vd) - MMP_BLOCKS_PER_LABEL)) 4585 continue; 4586 4587 print_label_header(label, label_num); 4588 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 4589 " Uberblock[%d]\n", i); 4590 dump_uberblock(ub, header, ""); 4591 print_label_numbers(" labels = ", rec); 4592 } 4593 } 4594 4595 static char curpath[PATH_MAX]; 4596 4597 /* 4598 * Iterate through the path components, recursively passing 4599 * current one's obj and remaining path until we find the obj 4600 * for the last one. 4601 */ 4602 static int 4603 dump_path_impl(objset_t *os, uint64_t obj, char *name, uint64_t *retobj) 4604 { 4605 int err; 4606 boolean_t header = B_TRUE; 4607 uint64_t child_obj; 4608 char *s; 4609 dmu_buf_t *db; 4610 dmu_object_info_t doi; 4611 4612 if ((s = strchr(name, '/')) != NULL) 4613 *s = '\0'; 4614 err = zap_lookup(os, obj, name, 8, 1, &child_obj); 4615 4616 (void) strlcat(curpath, name, sizeof (curpath)); 4617 4618 if (err != 0) { 4619 (void) fprintf(stderr, "failed to lookup %s: %s\n", 4620 curpath, strerror(err)); 4621 return (err); 4622 } 4623 4624 child_obj = ZFS_DIRENT_OBJ(child_obj); 4625 err = sa_buf_hold(os, child_obj, FTAG, &db); 4626 if (err != 0) { 4627 (void) fprintf(stderr, 4628 "failed to get SA dbuf for obj %llu: %s\n", 4629 (u_longlong_t)child_obj, strerror(err)); 4630 return (EINVAL); 4631 } 4632 dmu_object_info_from_db(db, &doi); 4633 sa_buf_rele(db, FTAG); 4634 4635 if (doi.doi_bonus_type != DMU_OT_SA && 4636 doi.doi_bonus_type != DMU_OT_ZNODE) { 4637 (void) fprintf(stderr, "invalid bonus type %d for obj %llu\n", 4638 doi.doi_bonus_type, (u_longlong_t)child_obj); 4639 return (EINVAL); 4640 } 4641 4642 if (dump_opt['v'] > 6) { 4643 (void) printf("obj=%llu %s type=%d bonustype=%d\n", 4644 (u_longlong_t)child_obj, curpath, doi.doi_type, 4645 doi.doi_bonus_type); 4646 } 4647 4648 (void) strlcat(curpath, "/", sizeof (curpath)); 4649 4650 switch (doi.doi_type) { 4651 case DMU_OT_DIRECTORY_CONTENTS: 4652 if (s != NULL && *(s + 1) != '\0') 4653 return (dump_path_impl(os, child_obj, s + 1, retobj)); 4654 fallthrough; 4655 case DMU_OT_PLAIN_FILE_CONTENTS: 4656 if (retobj != NULL) { 4657 *retobj = child_obj; 4658 } else { 4659 dump_object(os, child_obj, dump_opt['v'], &header, 4660 NULL, 0); 4661 } 4662 return (0); 4663 default: 4664 (void) fprintf(stderr, "object %llu has non-file/directory " 4665 "type %d\n", (u_longlong_t)obj, doi.doi_type); 4666 break; 4667 } 4668 4669 return (EINVAL); 4670 } 4671 4672 /* 4673 * Dump the blocks for the object specified by path inside the dataset. 4674 */ 4675 static int 4676 dump_path(char *ds, char *path, uint64_t *retobj) 4677 { 4678 int err; 4679 objset_t *os; 4680 uint64_t root_obj; 4681 4682 err = open_objset(ds, FTAG, &os); 4683 if (err != 0) 4684 return (err); 4685 4686 err = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1, &root_obj); 4687 if (err != 0) { 4688 (void) fprintf(stderr, "can't lookup root znode: %s\n", 4689 strerror(err)); 4690 close_objset(os, FTAG); 4691 return (EINVAL); 4692 } 4693 4694 (void) snprintf(curpath, sizeof (curpath), "dataset=%s path=/", ds); 4695 4696 err = dump_path_impl(os, root_obj, path, retobj); 4697 4698 close_objset(os, FTAG); 4699 return (err); 4700 } 4701 4702 static int 4703 zdb_copy_object(objset_t *os, uint64_t srcobj, char *destfile) 4704 { 4705 int err = 0; 4706 uint64_t size, readsize, oursize, offset; 4707 ssize_t writesize; 4708 sa_handle_t *hdl; 4709 4710 (void) printf("Copying object %" PRIu64 " to file %s\n", srcobj, 4711 destfile); 4712 4713 VERIFY3P(os, ==, sa_os); 4714 if ((err = sa_handle_get(os, srcobj, NULL, SA_HDL_PRIVATE, &hdl))) { 4715 (void) printf("Failed to get handle for SA znode\n"); 4716 return (err); 4717 } 4718 if ((err = sa_lookup(hdl, sa_attr_table[ZPL_SIZE], &size, 8))) { 4719 (void) sa_handle_destroy(hdl); 4720 return (err); 4721 } 4722 (void) sa_handle_destroy(hdl); 4723 4724 (void) printf("Object %" PRIu64 " is %" PRIu64 " bytes\n", srcobj, 4725 size); 4726 if (size == 0) { 4727 return (EINVAL); 4728 } 4729 4730 int fd = open(destfile, O_WRONLY | O_CREAT | O_TRUNC, 0644); 4731 /* 4732 * We cap the size at 1 mebibyte here to prevent 4733 * allocation failures and nigh-infinite printing if the 4734 * object is extremely large. 4735 */ 4736 oursize = MIN(size, 1 << 20); 4737 offset = 0; 4738 char *buf = kmem_alloc(oursize, KM_NOSLEEP); 4739 if (buf == NULL) { 4740 return (ENOMEM); 4741 } 4742 4743 while (offset < size) { 4744 readsize = MIN(size - offset, 1 << 20); 4745 err = dmu_read(os, srcobj, offset, readsize, buf, 0); 4746 if (err != 0) { 4747 (void) printf("got error %u from dmu_read\n", err); 4748 kmem_free(buf, oursize); 4749 return (err); 4750 } 4751 if (dump_opt['v'] > 3) { 4752 (void) printf("Read offset=%" PRIu64 " size=%" PRIu64 4753 " error=%d\n", offset, readsize, err); 4754 } 4755 4756 writesize = write(fd, buf, readsize); 4757 if (writesize < 0) { 4758 err = errno; 4759 break; 4760 } else if (writesize != readsize) { 4761 /* Incomplete write */ 4762 (void) fprintf(stderr, "Short write, only wrote %llu of" 4763 " %" PRIu64 " bytes, exiting...\n", 4764 (u_longlong_t)writesize, readsize); 4765 break; 4766 } 4767 4768 offset += readsize; 4769 } 4770 4771 (void) close(fd); 4772 4773 if (buf != NULL) 4774 kmem_free(buf, oursize); 4775 4776 return (err); 4777 } 4778 4779 static boolean_t 4780 label_cksum_valid(vdev_label_t *label, uint64_t offset) 4781 { 4782 zio_checksum_info_t *ci = &zio_checksum_table[ZIO_CHECKSUM_LABEL]; 4783 zio_cksum_t expected_cksum; 4784 zio_cksum_t actual_cksum; 4785 zio_cksum_t verifier; 4786 zio_eck_t *eck; 4787 int byteswap; 4788 4789 void *data = (char *)label + offsetof(vdev_label_t, vl_vdev_phys); 4790 eck = (zio_eck_t *)((char *)(data) + VDEV_PHYS_SIZE) - 1; 4791 4792 offset += offsetof(vdev_label_t, vl_vdev_phys); 4793 ZIO_SET_CHECKSUM(&verifier, offset, 0, 0, 0); 4794 4795 byteswap = (eck->zec_magic == BSWAP_64(ZEC_MAGIC)); 4796 if (byteswap) 4797 byteswap_uint64_array(&verifier, sizeof (zio_cksum_t)); 4798 4799 expected_cksum = eck->zec_cksum; 4800 eck->zec_cksum = verifier; 4801 4802 abd_t *abd = abd_get_from_buf(data, VDEV_PHYS_SIZE); 4803 ci->ci_func[byteswap](abd, VDEV_PHYS_SIZE, NULL, &actual_cksum); 4804 abd_free(abd); 4805 4806 if (byteswap) 4807 byteswap_uint64_array(&expected_cksum, sizeof (zio_cksum_t)); 4808 4809 if (ZIO_CHECKSUM_EQUAL(actual_cksum, expected_cksum)) 4810 return (B_TRUE); 4811 4812 return (B_FALSE); 4813 } 4814 4815 static int 4816 dump_label(const char *dev) 4817 { 4818 char path[MAXPATHLEN]; 4819 zdb_label_t labels[VDEV_LABELS]; 4820 uint64_t psize, ashift, l2cache; 4821 struct stat64 statbuf; 4822 boolean_t config_found = B_FALSE; 4823 boolean_t error = B_FALSE; 4824 boolean_t read_l2arc_header = B_FALSE; 4825 avl_tree_t config_tree; 4826 avl_tree_t uberblock_tree; 4827 void *node, *cookie; 4828 int fd; 4829 4830 bzero(labels, sizeof (labels)); 4831 4832 /* 4833 * Check if we were given absolute path and use it as is. 4834 * Otherwise if the provided vdev name doesn't point to a file, 4835 * try prepending expected disk paths and partition numbers. 4836 */ 4837 (void) strlcpy(path, dev, sizeof (path)); 4838 if (dev[0] != '/' && stat64(path, &statbuf) != 0) { 4839 int error; 4840 4841 error = zfs_resolve_shortname(dev, path, MAXPATHLEN); 4842 if (error == 0 && zfs_dev_is_whole_disk(path)) { 4843 if (zfs_append_partition(path, MAXPATHLEN) == -1) 4844 error = ENOENT; 4845 } 4846 4847 if (error || (stat64(path, &statbuf) != 0)) { 4848 (void) printf("failed to find device %s, try " 4849 "specifying absolute path instead\n", dev); 4850 return (1); 4851 } 4852 } 4853 4854 if ((fd = open64(path, O_RDONLY)) < 0) { 4855 (void) printf("cannot open '%s': %s\n", path, strerror(errno)); 4856 exit(1); 4857 } 4858 4859 if (fstat64_blk(fd, &statbuf) != 0) { 4860 (void) printf("failed to stat '%s': %s\n", path, 4861 strerror(errno)); 4862 (void) close(fd); 4863 exit(1); 4864 } 4865 4866 if (S_ISBLK(statbuf.st_mode) && zfs_dev_flush(fd) != 0) 4867 (void) printf("failed to invalidate cache '%s' : %s\n", path, 4868 strerror(errno)); 4869 4870 avl_create(&config_tree, cksum_record_compare, 4871 sizeof (cksum_record_t), offsetof(cksum_record_t, link)); 4872 avl_create(&uberblock_tree, cksum_record_compare, 4873 sizeof (cksum_record_t), offsetof(cksum_record_t, link)); 4874 4875 psize = statbuf.st_size; 4876 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 4877 ashift = SPA_MINBLOCKSHIFT; 4878 4879 /* 4880 * 1. Read the label from disk 4881 * 2. Verify label cksum 4882 * 3. Unpack the configuration and insert in config tree. 4883 * 4. Traverse all uberblocks and insert in uberblock tree. 4884 */ 4885 for (int l = 0; l < VDEV_LABELS; l++) { 4886 zdb_label_t *label = &labels[l]; 4887 char *buf = label->label.vl_vdev_phys.vp_nvlist; 4888 size_t buflen = sizeof (label->label.vl_vdev_phys.vp_nvlist); 4889 nvlist_t *config; 4890 cksum_record_t *rec; 4891 zio_cksum_t cksum; 4892 vdev_t vd; 4893 4894 label->label_offset = vdev_label_offset(psize, l, 0); 4895 4896 if (pread64(fd, &label->label, sizeof (label->label), 4897 label->label_offset) != sizeof (label->label)) { 4898 if (!dump_opt['q']) 4899 (void) printf("failed to read label %d\n", l); 4900 label->read_failed = B_TRUE; 4901 error = B_TRUE; 4902 continue; 4903 } 4904 4905 label->read_failed = B_FALSE; 4906 label->cksum_valid = label_cksum_valid(&label->label, 4907 label->label_offset); 4908 4909 if (nvlist_unpack(buf, buflen, &config, 0) == 0) { 4910 nvlist_t *vdev_tree = NULL; 4911 size_t size; 4912 4913 if ((nvlist_lookup_nvlist(config, 4914 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 4915 (nvlist_lookup_uint64(vdev_tree, 4916 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 4917 ashift = SPA_MINBLOCKSHIFT; 4918 4919 if (nvlist_size(config, &size, NV_ENCODE_XDR) != 0) 4920 size = buflen; 4921 4922 /* If the device is a cache device clear the header. */ 4923 if (!read_l2arc_header) { 4924 if (nvlist_lookup_uint64(config, 4925 ZPOOL_CONFIG_POOL_STATE, &l2cache) == 0 && 4926 l2cache == POOL_STATE_L2CACHE) { 4927 read_l2arc_header = B_TRUE; 4928 } 4929 } 4930 4931 fletcher_4_native_varsize(buf, size, &cksum); 4932 rec = cksum_record_insert(&config_tree, &cksum, l); 4933 4934 label->config = rec; 4935 label->config_nv = config; 4936 config_found = B_TRUE; 4937 } else { 4938 error = B_TRUE; 4939 } 4940 4941 vd.vdev_ashift = ashift; 4942 vd.vdev_top = &vd; 4943 4944 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(&vd); i++) { 4945 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(&vd, i); 4946 uberblock_t *ub = (void *)((char *)label + uoff); 4947 4948 if (uberblock_verify(ub)) 4949 continue; 4950 4951 fletcher_4_native_varsize(ub, sizeof (*ub), &cksum); 4952 rec = cksum_record_insert(&uberblock_tree, &cksum, l); 4953 4954 label->uberblocks[i] = rec; 4955 } 4956 } 4957 4958 /* 4959 * Dump the label and uberblocks. 4960 */ 4961 for (int l = 0; l < VDEV_LABELS; l++) { 4962 zdb_label_t *label = &labels[l]; 4963 size_t buflen = sizeof (label->label.vl_vdev_phys.vp_nvlist); 4964 4965 if (label->read_failed == B_TRUE) 4966 continue; 4967 4968 if (label->config_nv) { 4969 dump_config_from_label(label, buflen, l); 4970 } else { 4971 if (!dump_opt['q']) 4972 (void) printf("failed to unpack label %d\n", l); 4973 } 4974 4975 if (dump_opt['u']) 4976 dump_label_uberblocks(label, ashift, l); 4977 4978 nvlist_free(label->config_nv); 4979 } 4980 4981 /* 4982 * Dump the L2ARC header, if existent. 4983 */ 4984 if (read_l2arc_header) 4985 error |= dump_l2arc_header(fd); 4986 4987 cookie = NULL; 4988 while ((node = avl_destroy_nodes(&config_tree, &cookie)) != NULL) 4989 umem_free(node, sizeof (cksum_record_t)); 4990 4991 cookie = NULL; 4992 while ((node = avl_destroy_nodes(&uberblock_tree, &cookie)) != NULL) 4993 umem_free(node, sizeof (cksum_record_t)); 4994 4995 avl_destroy(&config_tree); 4996 avl_destroy(&uberblock_tree); 4997 4998 (void) close(fd); 4999 5000 return (config_found == B_FALSE ? 2 : 5001 (error == B_TRUE ? 1 : 0)); 5002 } 5003 5004 static uint64_t dataset_feature_count[SPA_FEATURES]; 5005 static uint64_t global_feature_count[SPA_FEATURES]; 5006 static uint64_t remap_deadlist_count = 0; 5007 5008 static int 5009 dump_one_objset(const char *dsname, void *arg) 5010 { 5011 (void) arg; 5012 int error; 5013 objset_t *os; 5014 spa_feature_t f; 5015 5016 error = open_objset(dsname, FTAG, &os); 5017 if (error != 0) 5018 return (0); 5019 5020 for (f = 0; f < SPA_FEATURES; f++) { 5021 if (!dsl_dataset_feature_is_active(dmu_objset_ds(os), f)) 5022 continue; 5023 ASSERT(spa_feature_table[f].fi_flags & 5024 ZFEATURE_FLAG_PER_DATASET); 5025 dataset_feature_count[f]++; 5026 } 5027 5028 if (dsl_dataset_remap_deadlist_exists(dmu_objset_ds(os))) { 5029 remap_deadlist_count++; 5030 } 5031 5032 for (dsl_bookmark_node_t *dbn = 5033 avl_first(&dmu_objset_ds(os)->ds_bookmarks); dbn != NULL; 5034 dbn = AVL_NEXT(&dmu_objset_ds(os)->ds_bookmarks, dbn)) { 5035 mos_obj_refd(dbn->dbn_phys.zbm_redaction_obj); 5036 if (dbn->dbn_phys.zbm_redaction_obj != 0) 5037 global_feature_count[SPA_FEATURE_REDACTION_BOOKMARKS]++; 5038 if (dbn->dbn_phys.zbm_flags & ZBM_FLAG_HAS_FBN) 5039 global_feature_count[SPA_FEATURE_BOOKMARK_WRITTEN]++; 5040 } 5041 5042 if (dsl_deadlist_is_open(&dmu_objset_ds(os)->ds_dir->dd_livelist) && 5043 !dmu_objset_is_snapshot(os)) { 5044 global_feature_count[SPA_FEATURE_LIVELIST]++; 5045 } 5046 5047 dump_objset(os); 5048 close_objset(os, FTAG); 5049 fuid_table_destroy(); 5050 return (0); 5051 } 5052 5053 /* 5054 * Block statistics. 5055 */ 5056 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2) 5057 typedef struct zdb_blkstats { 5058 uint64_t zb_asize; 5059 uint64_t zb_lsize; 5060 uint64_t zb_psize; 5061 uint64_t zb_count; 5062 uint64_t zb_gangs; 5063 uint64_t zb_ditto_samevdev; 5064 uint64_t zb_ditto_same_ms; 5065 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 5066 } zdb_blkstats_t; 5067 5068 /* 5069 * Extended object types to report deferred frees and dedup auto-ditto blocks. 5070 */ 5071 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 5072 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 5073 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 5074 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 5075 5076 static const char *zdb_ot_extname[] = { 5077 "deferred free", 5078 "dedup ditto", 5079 "other", 5080 "Total", 5081 }; 5082 5083 #define ZB_TOTAL DN_MAX_LEVELS 5084 #define SPA_MAX_FOR_16M (SPA_MAXBLOCKSHIFT+1) 5085 5086 typedef struct zdb_cb { 5087 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 5088 uint64_t zcb_removing_size; 5089 uint64_t zcb_checkpoint_size; 5090 uint64_t zcb_dedup_asize; 5091 uint64_t zcb_dedup_blocks; 5092 uint64_t zcb_psize_count[SPA_MAX_FOR_16M]; 5093 uint64_t zcb_lsize_count[SPA_MAX_FOR_16M]; 5094 uint64_t zcb_asize_count[SPA_MAX_FOR_16M]; 5095 uint64_t zcb_psize_len[SPA_MAX_FOR_16M]; 5096 uint64_t zcb_lsize_len[SPA_MAX_FOR_16M]; 5097 uint64_t zcb_asize_len[SPA_MAX_FOR_16M]; 5098 uint64_t zcb_psize_total; 5099 uint64_t zcb_lsize_total; 5100 uint64_t zcb_asize_total; 5101 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES]; 5102 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES] 5103 [BPE_PAYLOAD_SIZE + 1]; 5104 uint64_t zcb_start; 5105 hrtime_t zcb_lastprint; 5106 uint64_t zcb_totalasize; 5107 uint64_t zcb_errors[256]; 5108 int zcb_readfails; 5109 int zcb_haderrors; 5110 spa_t *zcb_spa; 5111 uint32_t **zcb_vd_obsolete_counts; 5112 } zdb_cb_t; 5113 5114 /* test if two DVA offsets from same vdev are within the same metaslab */ 5115 static boolean_t 5116 same_metaslab(spa_t *spa, uint64_t vdev, uint64_t off1, uint64_t off2) 5117 { 5118 vdev_t *vd = vdev_lookup_top(spa, vdev); 5119 uint64_t ms_shift = vd->vdev_ms_shift; 5120 5121 return ((off1 >> ms_shift) == (off2 >> ms_shift)); 5122 } 5123 5124 /* 5125 * Used to simplify reporting of the histogram data. 5126 */ 5127 typedef struct one_histo { 5128 char *name; 5129 uint64_t *count; 5130 uint64_t *len; 5131 uint64_t cumulative; 5132 } one_histo_t; 5133 5134 /* 5135 * The number of separate histograms processed for psize, lsize and asize. 5136 */ 5137 #define NUM_HISTO 3 5138 5139 /* 5140 * This routine will create a fixed column size output of three different 5141 * histograms showing by blocksize of 512 - 2^ SPA_MAX_FOR_16M 5142 * the count, length and cumulative length of the psize, lsize and 5143 * asize blocks. 5144 * 5145 * All three types of blocks are listed on a single line 5146 * 5147 * By default the table is printed in nicenumber format (e.g. 123K) but 5148 * if the '-P' parameter is specified then the full raw number (parseable) 5149 * is printed out. 5150 */ 5151 static void 5152 dump_size_histograms(zdb_cb_t *zcb) 5153 { 5154 /* 5155 * A temporary buffer that allows us to convert a number into 5156 * a string using zdb_nicenumber to allow either raw or human 5157 * readable numbers to be output. 5158 */ 5159 char numbuf[32]; 5160 5161 /* 5162 * Define titles which are used in the headers of the tables 5163 * printed by this routine. 5164 */ 5165 const char blocksize_title1[] = "block"; 5166 const char blocksize_title2[] = "size"; 5167 const char count_title[] = "Count"; 5168 const char length_title[] = "Size"; 5169 const char cumulative_title[] = "Cum."; 5170 5171 /* 5172 * Setup the histogram arrays (psize, lsize, and asize). 5173 */ 5174 one_histo_t parm_histo[NUM_HISTO]; 5175 5176 parm_histo[0].name = "psize"; 5177 parm_histo[0].count = zcb->zcb_psize_count; 5178 parm_histo[0].len = zcb->zcb_psize_len; 5179 parm_histo[0].cumulative = 0; 5180 5181 parm_histo[1].name = "lsize"; 5182 parm_histo[1].count = zcb->zcb_lsize_count; 5183 parm_histo[1].len = zcb->zcb_lsize_len; 5184 parm_histo[1].cumulative = 0; 5185 5186 parm_histo[2].name = "asize"; 5187 parm_histo[2].count = zcb->zcb_asize_count; 5188 parm_histo[2].len = zcb->zcb_asize_len; 5189 parm_histo[2].cumulative = 0; 5190 5191 5192 (void) printf("\nBlock Size Histogram\n"); 5193 /* 5194 * Print the first line titles 5195 */ 5196 if (dump_opt['P']) 5197 (void) printf("\n%s\t", blocksize_title1); 5198 else 5199 (void) printf("\n%7s ", blocksize_title1); 5200 5201 for (int j = 0; j < NUM_HISTO; j++) { 5202 if (dump_opt['P']) { 5203 if (j < NUM_HISTO - 1) { 5204 (void) printf("%s\t\t\t", parm_histo[j].name); 5205 } else { 5206 /* Don't print trailing spaces */ 5207 (void) printf(" %s", parm_histo[j].name); 5208 } 5209 } else { 5210 if (j < NUM_HISTO - 1) { 5211 /* Left aligned strings in the output */ 5212 (void) printf("%-7s ", 5213 parm_histo[j].name); 5214 } else { 5215 /* Don't print trailing spaces */ 5216 (void) printf("%s", parm_histo[j].name); 5217 } 5218 } 5219 } 5220 (void) printf("\n"); 5221 5222 /* 5223 * Print the second line titles 5224 */ 5225 if (dump_opt['P']) { 5226 (void) printf("%s\t", blocksize_title2); 5227 } else { 5228 (void) printf("%7s ", blocksize_title2); 5229 } 5230 5231 for (int i = 0; i < NUM_HISTO; i++) { 5232 if (dump_opt['P']) { 5233 (void) printf("%s\t%s\t%s\t", 5234 count_title, length_title, cumulative_title); 5235 } else { 5236 (void) printf("%7s%7s%7s", 5237 count_title, length_title, cumulative_title); 5238 } 5239 } 5240 (void) printf("\n"); 5241 5242 /* 5243 * Print the rows 5244 */ 5245 for (int i = SPA_MINBLOCKSHIFT; i < SPA_MAX_FOR_16M; i++) { 5246 5247 /* 5248 * Print the first column showing the blocksize 5249 */ 5250 zdb_nicenum((1ULL << i), numbuf, sizeof (numbuf)); 5251 5252 if (dump_opt['P']) { 5253 printf("%s", numbuf); 5254 } else { 5255 printf("%7s:", numbuf); 5256 } 5257 5258 /* 5259 * Print the remaining set of 3 columns per size: 5260 * for psize, lsize and asize 5261 */ 5262 for (int j = 0; j < NUM_HISTO; j++) { 5263 parm_histo[j].cumulative += parm_histo[j].len[i]; 5264 5265 zdb_nicenum(parm_histo[j].count[i], 5266 numbuf, sizeof (numbuf)); 5267 if (dump_opt['P']) 5268 (void) printf("\t%s", numbuf); 5269 else 5270 (void) printf("%7s", numbuf); 5271 5272 zdb_nicenum(parm_histo[j].len[i], 5273 numbuf, sizeof (numbuf)); 5274 if (dump_opt['P']) 5275 (void) printf("\t%s", numbuf); 5276 else 5277 (void) printf("%7s", numbuf); 5278 5279 zdb_nicenum(parm_histo[j].cumulative, 5280 numbuf, sizeof (numbuf)); 5281 if (dump_opt['P']) 5282 (void) printf("\t%s", numbuf); 5283 else 5284 (void) printf("%7s", numbuf); 5285 } 5286 (void) printf("\n"); 5287 } 5288 } 5289 5290 static void 5291 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 5292 dmu_object_type_t type) 5293 { 5294 uint64_t refcnt = 0; 5295 int i; 5296 5297 ASSERT(type < ZDB_OT_TOTAL); 5298 5299 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 5300 return; 5301 5302 spa_config_enter(zcb->zcb_spa, SCL_CONFIG, FTAG, RW_READER); 5303 5304 for (i = 0; i < 4; i++) { 5305 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 5306 int t = (i & 1) ? type : ZDB_OT_TOTAL; 5307 int equal; 5308 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 5309 5310 zb->zb_asize += BP_GET_ASIZE(bp); 5311 zb->zb_lsize += BP_GET_LSIZE(bp); 5312 zb->zb_psize += BP_GET_PSIZE(bp); 5313 zb->zb_count++; 5314 5315 /* 5316 * The histogram is only big enough to record blocks up to 5317 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last, 5318 * "other", bucket. 5319 */ 5320 unsigned idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT; 5321 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1); 5322 zb->zb_psize_histogram[idx]++; 5323 5324 zb->zb_gangs += BP_COUNT_GANG(bp); 5325 5326 switch (BP_GET_NDVAS(bp)) { 5327 case 2: 5328 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 5329 DVA_GET_VDEV(&bp->blk_dva[1])) { 5330 zb->zb_ditto_samevdev++; 5331 5332 if (same_metaslab(zcb->zcb_spa, 5333 DVA_GET_VDEV(&bp->blk_dva[0]), 5334 DVA_GET_OFFSET(&bp->blk_dva[0]), 5335 DVA_GET_OFFSET(&bp->blk_dva[1]))) 5336 zb->zb_ditto_same_ms++; 5337 } 5338 break; 5339 case 3: 5340 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == 5341 DVA_GET_VDEV(&bp->blk_dva[1])) + 5342 (DVA_GET_VDEV(&bp->blk_dva[0]) == 5343 DVA_GET_VDEV(&bp->blk_dva[2])) + 5344 (DVA_GET_VDEV(&bp->blk_dva[1]) == 5345 DVA_GET_VDEV(&bp->blk_dva[2])); 5346 if (equal != 0) { 5347 zb->zb_ditto_samevdev++; 5348 5349 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 5350 DVA_GET_VDEV(&bp->blk_dva[1]) && 5351 same_metaslab(zcb->zcb_spa, 5352 DVA_GET_VDEV(&bp->blk_dva[0]), 5353 DVA_GET_OFFSET(&bp->blk_dva[0]), 5354 DVA_GET_OFFSET(&bp->blk_dva[1]))) 5355 zb->zb_ditto_same_ms++; 5356 else if (DVA_GET_VDEV(&bp->blk_dva[0]) == 5357 DVA_GET_VDEV(&bp->blk_dva[2]) && 5358 same_metaslab(zcb->zcb_spa, 5359 DVA_GET_VDEV(&bp->blk_dva[0]), 5360 DVA_GET_OFFSET(&bp->blk_dva[0]), 5361 DVA_GET_OFFSET(&bp->blk_dva[2]))) 5362 zb->zb_ditto_same_ms++; 5363 else if (DVA_GET_VDEV(&bp->blk_dva[1]) == 5364 DVA_GET_VDEV(&bp->blk_dva[2]) && 5365 same_metaslab(zcb->zcb_spa, 5366 DVA_GET_VDEV(&bp->blk_dva[1]), 5367 DVA_GET_OFFSET(&bp->blk_dva[1]), 5368 DVA_GET_OFFSET(&bp->blk_dva[2]))) 5369 zb->zb_ditto_same_ms++; 5370 } 5371 break; 5372 } 5373 } 5374 5375 spa_config_exit(zcb->zcb_spa, SCL_CONFIG, FTAG); 5376 5377 if (BP_IS_EMBEDDED(bp)) { 5378 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++; 5379 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)] 5380 [BPE_GET_PSIZE(bp)]++; 5381 return; 5382 } 5383 /* 5384 * The binning histogram bins by powers of two up to 5385 * SPA_MAXBLOCKSIZE rather than creating bins for 5386 * every possible blocksize found in the pool. 5387 */ 5388 int bin = highbit64(BP_GET_PSIZE(bp)) - 1; 5389 5390 zcb->zcb_psize_count[bin]++; 5391 zcb->zcb_psize_len[bin] += BP_GET_PSIZE(bp); 5392 zcb->zcb_psize_total += BP_GET_PSIZE(bp); 5393 5394 bin = highbit64(BP_GET_LSIZE(bp)) - 1; 5395 5396 zcb->zcb_lsize_count[bin]++; 5397 zcb->zcb_lsize_len[bin] += BP_GET_LSIZE(bp); 5398 zcb->zcb_lsize_total += BP_GET_LSIZE(bp); 5399 5400 bin = highbit64(BP_GET_ASIZE(bp)) - 1; 5401 5402 zcb->zcb_asize_count[bin]++; 5403 zcb->zcb_asize_len[bin] += BP_GET_ASIZE(bp); 5404 zcb->zcb_asize_total += BP_GET_ASIZE(bp); 5405 5406 if (dump_opt['L']) 5407 return; 5408 5409 if (BP_GET_DEDUP(bp)) { 5410 ddt_t *ddt; 5411 ddt_entry_t *dde; 5412 5413 ddt = ddt_select(zcb->zcb_spa, bp); 5414 ddt_enter(ddt); 5415 dde = ddt_lookup(ddt, bp, B_FALSE); 5416 5417 if (dde == NULL) { 5418 refcnt = 0; 5419 } else { 5420 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 5421 ddt_phys_decref(ddp); 5422 refcnt = ddp->ddp_refcnt; 5423 if (ddt_phys_total_refcnt(dde) == 0) 5424 ddt_remove(ddt, dde); 5425 } 5426 ddt_exit(ddt); 5427 } 5428 5429 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 5430 refcnt ? 0 : spa_min_claim_txg(zcb->zcb_spa), 5431 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 5432 } 5433 5434 static void 5435 zdb_blkptr_done(zio_t *zio) 5436 { 5437 spa_t *spa = zio->io_spa; 5438 blkptr_t *bp = zio->io_bp; 5439 int ioerr = zio->io_error; 5440 zdb_cb_t *zcb = zio->io_private; 5441 zbookmark_phys_t *zb = &zio->io_bookmark; 5442 5443 mutex_enter(&spa->spa_scrub_lock); 5444 spa->spa_load_verify_bytes -= BP_GET_PSIZE(bp); 5445 cv_broadcast(&spa->spa_scrub_io_cv); 5446 5447 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 5448 char blkbuf[BP_SPRINTF_LEN]; 5449 5450 zcb->zcb_haderrors = 1; 5451 zcb->zcb_errors[ioerr]++; 5452 5453 if (dump_opt['b'] >= 2) 5454 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 5455 else 5456 blkbuf[0] = '\0'; 5457 5458 (void) printf("zdb_blkptr_cb: " 5459 "Got error %d reading " 5460 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 5461 ioerr, 5462 (u_longlong_t)zb->zb_objset, 5463 (u_longlong_t)zb->zb_object, 5464 (u_longlong_t)zb->zb_level, 5465 (u_longlong_t)zb->zb_blkid, 5466 blkbuf); 5467 } 5468 mutex_exit(&spa->spa_scrub_lock); 5469 5470 abd_free(zio->io_abd); 5471 } 5472 5473 static int 5474 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 5475 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 5476 { 5477 zdb_cb_t *zcb = arg; 5478 dmu_object_type_t type; 5479 boolean_t is_metadata; 5480 5481 if (zb->zb_level == ZB_DNODE_LEVEL) 5482 return (0); 5483 5484 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) { 5485 char blkbuf[BP_SPRINTF_LEN]; 5486 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 5487 (void) printf("objset %llu object %llu " 5488 "level %lld offset 0x%llx %s\n", 5489 (u_longlong_t)zb->zb_objset, 5490 (u_longlong_t)zb->zb_object, 5491 (longlong_t)zb->zb_level, 5492 (u_longlong_t)blkid2offset(dnp, bp, zb), 5493 blkbuf); 5494 } 5495 5496 if (BP_IS_HOLE(bp) || BP_IS_REDACTED(bp)) 5497 return (0); 5498 5499 type = BP_GET_TYPE(bp); 5500 5501 zdb_count_block(zcb, zilog, bp, 5502 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 5503 5504 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 5505 5506 if (!BP_IS_EMBEDDED(bp) && 5507 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) { 5508 size_t size = BP_GET_PSIZE(bp); 5509 abd_t *abd = abd_alloc(size, B_FALSE); 5510 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 5511 5512 /* If it's an intent log block, failure is expected. */ 5513 if (zb->zb_level == ZB_ZIL_LEVEL) 5514 flags |= ZIO_FLAG_SPECULATIVE; 5515 5516 mutex_enter(&spa->spa_scrub_lock); 5517 while (spa->spa_load_verify_bytes > max_inflight_bytes) 5518 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 5519 spa->spa_load_verify_bytes += size; 5520 mutex_exit(&spa->spa_scrub_lock); 5521 5522 zio_nowait(zio_read(NULL, spa, bp, abd, size, 5523 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 5524 } 5525 5526 zcb->zcb_readfails = 0; 5527 5528 /* only call gethrtime() every 100 blocks */ 5529 static int iters; 5530 if (++iters > 100) 5531 iters = 0; 5532 else 5533 return (0); 5534 5535 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) { 5536 uint64_t now = gethrtime(); 5537 char buf[10]; 5538 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 5539 uint64_t kb_per_sec = 5540 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 5541 uint64_t sec_remaining = 5542 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 5543 5544 /* make sure nicenum has enough space */ 5545 CTASSERT(sizeof (buf) >= NN_NUMBUF_SZ); 5546 5547 zfs_nicebytes(bytes, buf, sizeof (buf)); 5548 (void) fprintf(stderr, 5549 "\r%5s completed (%4"PRIu64"MB/s) " 5550 "estimated time remaining: " 5551 "%"PRIu64"hr %02"PRIu64"min %02"PRIu64"sec ", 5552 buf, kb_per_sec / 1024, 5553 sec_remaining / 60 / 60, 5554 sec_remaining / 60 % 60, 5555 sec_remaining % 60); 5556 5557 zcb->zcb_lastprint = now; 5558 } 5559 5560 return (0); 5561 } 5562 5563 static void 5564 zdb_leak(void *arg, uint64_t start, uint64_t size) 5565 { 5566 vdev_t *vd = arg; 5567 5568 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 5569 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 5570 } 5571 5572 static metaslab_ops_t zdb_metaslab_ops = { 5573 NULL /* alloc */ 5574 }; 5575 5576 static int 5577 load_unflushed_svr_segs_cb(spa_t *spa, space_map_entry_t *sme, 5578 uint64_t txg, void *arg) 5579 { 5580 spa_vdev_removal_t *svr = arg; 5581 5582 uint64_t offset = sme->sme_offset; 5583 uint64_t size = sme->sme_run; 5584 5585 /* skip vdevs we don't care about */ 5586 if (sme->sme_vdev != svr->svr_vdev_id) 5587 return (0); 5588 5589 vdev_t *vd = vdev_lookup_top(spa, sme->sme_vdev); 5590 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 5591 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE); 5592 5593 if (txg < metaslab_unflushed_txg(ms)) 5594 return (0); 5595 5596 if (sme->sme_type == SM_ALLOC) 5597 range_tree_add(svr->svr_allocd_segs, offset, size); 5598 else 5599 range_tree_remove(svr->svr_allocd_segs, offset, size); 5600 5601 return (0); 5602 } 5603 5604 static void 5605 claim_segment_impl_cb(uint64_t inner_offset, vdev_t *vd, uint64_t offset, 5606 uint64_t size, void *arg) 5607 { 5608 (void) inner_offset, (void) arg; 5609 5610 /* 5611 * This callback was called through a remap from 5612 * a device being removed. Therefore, the vdev that 5613 * this callback is applied to is a concrete 5614 * vdev. 5615 */ 5616 ASSERT(vdev_is_concrete(vd)); 5617 5618 VERIFY0(metaslab_claim_impl(vd, offset, size, 5619 spa_min_claim_txg(vd->vdev_spa))); 5620 } 5621 5622 static void 5623 claim_segment_cb(void *arg, uint64_t offset, uint64_t size) 5624 { 5625 vdev_t *vd = arg; 5626 5627 vdev_indirect_ops.vdev_op_remap(vd, offset, size, 5628 claim_segment_impl_cb, NULL); 5629 } 5630 5631 /* 5632 * After accounting for all allocated blocks that are directly referenced, 5633 * we might have missed a reference to a block from a partially complete 5634 * (and thus unused) indirect mapping object. We perform a secondary pass 5635 * through the metaslabs we have already mapped and claim the destination 5636 * blocks. 5637 */ 5638 static void 5639 zdb_claim_removing(spa_t *spa, zdb_cb_t *zcb) 5640 { 5641 if (dump_opt['L']) 5642 return; 5643 5644 if (spa->spa_vdev_removal == NULL) 5645 return; 5646 5647 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 5648 5649 spa_vdev_removal_t *svr = spa->spa_vdev_removal; 5650 vdev_t *vd = vdev_lookup_top(spa, svr->svr_vdev_id); 5651 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 5652 5653 ASSERT0(range_tree_space(svr->svr_allocd_segs)); 5654 5655 range_tree_t *allocs = range_tree_create(NULL, RANGE_SEG64, NULL, 0, 0); 5656 for (uint64_t msi = 0; msi < vd->vdev_ms_count; msi++) { 5657 metaslab_t *msp = vd->vdev_ms[msi]; 5658 5659 ASSERT0(range_tree_space(allocs)); 5660 if (msp->ms_sm != NULL) 5661 VERIFY0(space_map_load(msp->ms_sm, allocs, SM_ALLOC)); 5662 range_tree_vacate(allocs, range_tree_add, svr->svr_allocd_segs); 5663 } 5664 range_tree_destroy(allocs); 5665 5666 iterate_through_spacemap_logs(spa, load_unflushed_svr_segs_cb, svr); 5667 5668 /* 5669 * Clear everything past what has been synced, 5670 * because we have not allocated mappings for 5671 * it yet. 5672 */ 5673 range_tree_clear(svr->svr_allocd_segs, 5674 vdev_indirect_mapping_max_offset(vim), 5675 vd->vdev_asize - vdev_indirect_mapping_max_offset(vim)); 5676 5677 zcb->zcb_removing_size += range_tree_space(svr->svr_allocd_segs); 5678 range_tree_vacate(svr->svr_allocd_segs, claim_segment_cb, vd); 5679 5680 spa_config_exit(spa, SCL_CONFIG, FTAG); 5681 } 5682 5683 static int 5684 increment_indirect_mapping_cb(void *arg, const blkptr_t *bp, boolean_t bp_freed, 5685 dmu_tx_t *tx) 5686 { 5687 (void) tx; 5688 zdb_cb_t *zcb = arg; 5689 spa_t *spa = zcb->zcb_spa; 5690 vdev_t *vd; 5691 const dva_t *dva = &bp->blk_dva[0]; 5692 5693 ASSERT(!bp_freed); 5694 ASSERT(!dump_opt['L']); 5695 ASSERT3U(BP_GET_NDVAS(bp), ==, 1); 5696 5697 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER); 5698 vd = vdev_lookup_top(zcb->zcb_spa, DVA_GET_VDEV(dva)); 5699 ASSERT3P(vd, !=, NULL); 5700 spa_config_exit(spa, SCL_VDEV, FTAG); 5701 5702 ASSERT(vd->vdev_indirect_config.vic_mapping_object != 0); 5703 ASSERT3P(zcb->zcb_vd_obsolete_counts[vd->vdev_id], !=, NULL); 5704 5705 vdev_indirect_mapping_increment_obsolete_count( 5706 vd->vdev_indirect_mapping, 5707 DVA_GET_OFFSET(dva), DVA_GET_ASIZE(dva), 5708 zcb->zcb_vd_obsolete_counts[vd->vdev_id]); 5709 5710 return (0); 5711 } 5712 5713 static uint32_t * 5714 zdb_load_obsolete_counts(vdev_t *vd) 5715 { 5716 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 5717 spa_t *spa = vd->vdev_spa; 5718 spa_condensing_indirect_phys_t *scip = 5719 &spa->spa_condensing_indirect_phys; 5720 uint64_t obsolete_sm_object; 5721 uint32_t *counts; 5722 5723 VERIFY0(vdev_obsolete_sm_object(vd, &obsolete_sm_object)); 5724 EQUIV(obsolete_sm_object != 0, vd->vdev_obsolete_sm != NULL); 5725 counts = vdev_indirect_mapping_load_obsolete_counts(vim); 5726 if (vd->vdev_obsolete_sm != NULL) { 5727 vdev_indirect_mapping_load_obsolete_spacemap(vim, counts, 5728 vd->vdev_obsolete_sm); 5729 } 5730 if (scip->scip_vdev == vd->vdev_id && 5731 scip->scip_prev_obsolete_sm_object != 0) { 5732 space_map_t *prev_obsolete_sm = NULL; 5733 VERIFY0(space_map_open(&prev_obsolete_sm, spa->spa_meta_objset, 5734 scip->scip_prev_obsolete_sm_object, 0, vd->vdev_asize, 0)); 5735 vdev_indirect_mapping_load_obsolete_spacemap(vim, counts, 5736 prev_obsolete_sm); 5737 space_map_close(prev_obsolete_sm); 5738 } 5739 return (counts); 5740 } 5741 5742 static void 5743 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 5744 { 5745 ddt_bookmark_t ddb; 5746 ddt_entry_t dde; 5747 int error; 5748 int p; 5749 5750 ASSERT(!dump_opt['L']); 5751 5752 bzero(&ddb, sizeof (ddb)); 5753 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 5754 blkptr_t blk; 5755 ddt_phys_t *ddp = dde.dde_phys; 5756 5757 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 5758 return; 5759 5760 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 5761 5762 for (p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 5763 if (ddp->ddp_phys_birth == 0) 5764 continue; 5765 ddt_bp_create(ddb.ddb_checksum, 5766 &dde.dde_key, ddp, &blk); 5767 if (p == DDT_PHYS_DITTO) { 5768 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 5769 } else { 5770 zcb->zcb_dedup_asize += 5771 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 5772 zcb->zcb_dedup_blocks++; 5773 } 5774 } 5775 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 5776 ddt_enter(ddt); 5777 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 5778 ddt_exit(ddt); 5779 } 5780 5781 ASSERT(error == ENOENT); 5782 } 5783 5784 typedef struct checkpoint_sm_exclude_entry_arg { 5785 vdev_t *cseea_vd; 5786 uint64_t cseea_checkpoint_size; 5787 } checkpoint_sm_exclude_entry_arg_t; 5788 5789 static int 5790 checkpoint_sm_exclude_entry_cb(space_map_entry_t *sme, void *arg) 5791 { 5792 checkpoint_sm_exclude_entry_arg_t *cseea = arg; 5793 vdev_t *vd = cseea->cseea_vd; 5794 metaslab_t *ms = vd->vdev_ms[sme->sme_offset >> vd->vdev_ms_shift]; 5795 uint64_t end = sme->sme_offset + sme->sme_run; 5796 5797 ASSERT(sme->sme_type == SM_FREE); 5798 5799 /* 5800 * Since the vdev_checkpoint_sm exists in the vdev level 5801 * and the ms_sm space maps exist in the metaslab level, 5802 * an entry in the checkpoint space map could theoretically 5803 * cross the boundaries of the metaslab that it belongs. 5804 * 5805 * In reality, because of the way that we populate and 5806 * manipulate the checkpoint's space maps currently, 5807 * there shouldn't be any entries that cross metaslabs. 5808 * Hence the assertion below. 5809 * 5810 * That said, there is no fundamental requirement that 5811 * the checkpoint's space map entries should not cross 5812 * metaslab boundaries. So if needed we could add code 5813 * that handles metaslab-crossing segments in the future. 5814 */ 5815 VERIFY3U(sme->sme_offset, >=, ms->ms_start); 5816 VERIFY3U(end, <=, ms->ms_start + ms->ms_size); 5817 5818 /* 5819 * By removing the entry from the allocated segments we 5820 * also verify that the entry is there to begin with. 5821 */ 5822 mutex_enter(&ms->ms_lock); 5823 range_tree_remove(ms->ms_allocatable, sme->sme_offset, sme->sme_run); 5824 mutex_exit(&ms->ms_lock); 5825 5826 cseea->cseea_checkpoint_size += sme->sme_run; 5827 return (0); 5828 } 5829 5830 static void 5831 zdb_leak_init_vdev_exclude_checkpoint(vdev_t *vd, zdb_cb_t *zcb) 5832 { 5833 spa_t *spa = vd->vdev_spa; 5834 space_map_t *checkpoint_sm = NULL; 5835 uint64_t checkpoint_sm_obj; 5836 5837 /* 5838 * If there is no vdev_top_zap, we are in a pool whose 5839 * version predates the pool checkpoint feature. 5840 */ 5841 if (vd->vdev_top_zap == 0) 5842 return; 5843 5844 /* 5845 * If there is no reference of the vdev_checkpoint_sm in 5846 * the vdev_top_zap, then one of the following scenarios 5847 * is true: 5848 * 5849 * 1] There is no checkpoint 5850 * 2] There is a checkpoint, but no checkpointed blocks 5851 * have been freed yet 5852 * 3] The current vdev is indirect 5853 * 5854 * In these cases we return immediately. 5855 */ 5856 if (zap_contains(spa_meta_objset(spa), vd->vdev_top_zap, 5857 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0) 5858 return; 5859 5860 VERIFY0(zap_lookup(spa_meta_objset(spa), vd->vdev_top_zap, 5861 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, sizeof (uint64_t), 1, 5862 &checkpoint_sm_obj)); 5863 5864 checkpoint_sm_exclude_entry_arg_t cseea; 5865 cseea.cseea_vd = vd; 5866 cseea.cseea_checkpoint_size = 0; 5867 5868 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(spa), 5869 checkpoint_sm_obj, 0, vd->vdev_asize, vd->vdev_ashift)); 5870 5871 VERIFY0(space_map_iterate(checkpoint_sm, 5872 space_map_length(checkpoint_sm), 5873 checkpoint_sm_exclude_entry_cb, &cseea)); 5874 space_map_close(checkpoint_sm); 5875 5876 zcb->zcb_checkpoint_size += cseea.cseea_checkpoint_size; 5877 } 5878 5879 static void 5880 zdb_leak_init_exclude_checkpoint(spa_t *spa, zdb_cb_t *zcb) 5881 { 5882 ASSERT(!dump_opt['L']); 5883 5884 vdev_t *rvd = spa->spa_root_vdev; 5885 for (uint64_t c = 0; c < rvd->vdev_children; c++) { 5886 ASSERT3U(c, ==, rvd->vdev_child[c]->vdev_id); 5887 zdb_leak_init_vdev_exclude_checkpoint(rvd->vdev_child[c], zcb); 5888 } 5889 } 5890 5891 static int 5892 count_unflushed_space_cb(spa_t *spa, space_map_entry_t *sme, 5893 uint64_t txg, void *arg) 5894 { 5895 int64_t *ualloc_space = arg; 5896 5897 uint64_t offset = sme->sme_offset; 5898 uint64_t vdev_id = sme->sme_vdev; 5899 5900 vdev_t *vd = vdev_lookup_top(spa, vdev_id); 5901 if (!vdev_is_concrete(vd)) 5902 return (0); 5903 5904 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 5905 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE); 5906 5907 if (txg < metaslab_unflushed_txg(ms)) 5908 return (0); 5909 5910 if (sme->sme_type == SM_ALLOC) 5911 *ualloc_space += sme->sme_run; 5912 else 5913 *ualloc_space -= sme->sme_run; 5914 5915 return (0); 5916 } 5917 5918 static int64_t 5919 get_unflushed_alloc_space(spa_t *spa) 5920 { 5921 if (dump_opt['L']) 5922 return (0); 5923 5924 int64_t ualloc_space = 0; 5925 iterate_through_spacemap_logs(spa, count_unflushed_space_cb, 5926 &ualloc_space); 5927 return (ualloc_space); 5928 } 5929 5930 static int 5931 load_unflushed_cb(spa_t *spa, space_map_entry_t *sme, uint64_t txg, void *arg) 5932 { 5933 maptype_t *uic_maptype = arg; 5934 5935 uint64_t offset = sme->sme_offset; 5936 uint64_t size = sme->sme_run; 5937 uint64_t vdev_id = sme->sme_vdev; 5938 5939 vdev_t *vd = vdev_lookup_top(spa, vdev_id); 5940 5941 /* skip indirect vdevs */ 5942 if (!vdev_is_concrete(vd)) 5943 return (0); 5944 5945 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 5946 5947 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE); 5948 ASSERT(*uic_maptype == SM_ALLOC || *uic_maptype == SM_FREE); 5949 5950 if (txg < metaslab_unflushed_txg(ms)) 5951 return (0); 5952 5953 if (*uic_maptype == sme->sme_type) 5954 range_tree_add(ms->ms_allocatable, offset, size); 5955 else 5956 range_tree_remove(ms->ms_allocatable, offset, size); 5957 5958 return (0); 5959 } 5960 5961 static void 5962 load_unflushed_to_ms_allocatables(spa_t *spa, maptype_t maptype) 5963 { 5964 iterate_through_spacemap_logs(spa, load_unflushed_cb, &maptype); 5965 } 5966 5967 static void 5968 load_concrete_ms_allocatable_trees(spa_t *spa, maptype_t maptype) 5969 { 5970 vdev_t *rvd = spa->spa_root_vdev; 5971 for (uint64_t i = 0; i < rvd->vdev_children; i++) { 5972 vdev_t *vd = rvd->vdev_child[i]; 5973 5974 ASSERT3U(i, ==, vd->vdev_id); 5975 5976 if (vd->vdev_ops == &vdev_indirect_ops) 5977 continue; 5978 5979 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 5980 metaslab_t *msp = vd->vdev_ms[m]; 5981 5982 (void) fprintf(stderr, 5983 "\rloading concrete vdev %llu, " 5984 "metaslab %llu of %llu ...", 5985 (longlong_t)vd->vdev_id, 5986 (longlong_t)msp->ms_id, 5987 (longlong_t)vd->vdev_ms_count); 5988 5989 mutex_enter(&msp->ms_lock); 5990 range_tree_vacate(msp->ms_allocatable, NULL, NULL); 5991 5992 /* 5993 * We don't want to spend the CPU manipulating the 5994 * size-ordered tree, so clear the range_tree ops. 5995 */ 5996 msp->ms_allocatable->rt_ops = NULL; 5997 5998 if (msp->ms_sm != NULL) { 5999 VERIFY0(space_map_load(msp->ms_sm, 6000 msp->ms_allocatable, maptype)); 6001 } 6002 if (!msp->ms_loaded) 6003 msp->ms_loaded = B_TRUE; 6004 mutex_exit(&msp->ms_lock); 6005 } 6006 } 6007 6008 load_unflushed_to_ms_allocatables(spa, maptype); 6009 } 6010 6011 /* 6012 * vm_idxp is an in-out parameter which (for indirect vdevs) is the 6013 * index in vim_entries that has the first entry in this metaslab. 6014 * On return, it will be set to the first entry after this metaslab. 6015 */ 6016 static void 6017 load_indirect_ms_allocatable_tree(vdev_t *vd, metaslab_t *msp, 6018 uint64_t *vim_idxp) 6019 { 6020 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 6021 6022 mutex_enter(&msp->ms_lock); 6023 range_tree_vacate(msp->ms_allocatable, NULL, NULL); 6024 6025 /* 6026 * We don't want to spend the CPU manipulating the 6027 * size-ordered tree, so clear the range_tree ops. 6028 */ 6029 msp->ms_allocatable->rt_ops = NULL; 6030 6031 for (; *vim_idxp < vdev_indirect_mapping_num_entries(vim); 6032 (*vim_idxp)++) { 6033 vdev_indirect_mapping_entry_phys_t *vimep = 6034 &vim->vim_entries[*vim_idxp]; 6035 uint64_t ent_offset = DVA_MAPPING_GET_SRC_OFFSET(vimep); 6036 uint64_t ent_len = DVA_GET_ASIZE(&vimep->vimep_dst); 6037 ASSERT3U(ent_offset, >=, msp->ms_start); 6038 if (ent_offset >= msp->ms_start + msp->ms_size) 6039 break; 6040 6041 /* 6042 * Mappings do not cross metaslab boundaries, 6043 * because we create them by walking the metaslabs. 6044 */ 6045 ASSERT3U(ent_offset + ent_len, <=, 6046 msp->ms_start + msp->ms_size); 6047 range_tree_add(msp->ms_allocatable, ent_offset, ent_len); 6048 } 6049 6050 if (!msp->ms_loaded) 6051 msp->ms_loaded = B_TRUE; 6052 mutex_exit(&msp->ms_lock); 6053 } 6054 6055 static void 6056 zdb_leak_init_prepare_indirect_vdevs(spa_t *spa, zdb_cb_t *zcb) 6057 { 6058 ASSERT(!dump_opt['L']); 6059 6060 vdev_t *rvd = spa->spa_root_vdev; 6061 for (uint64_t c = 0; c < rvd->vdev_children; c++) { 6062 vdev_t *vd = rvd->vdev_child[c]; 6063 6064 ASSERT3U(c, ==, vd->vdev_id); 6065 6066 if (vd->vdev_ops != &vdev_indirect_ops) 6067 continue; 6068 6069 /* 6070 * Note: we don't check for mapping leaks on 6071 * removing vdevs because their ms_allocatable's 6072 * are used to look for leaks in allocated space. 6073 */ 6074 zcb->zcb_vd_obsolete_counts[c] = zdb_load_obsolete_counts(vd); 6075 6076 /* 6077 * Normally, indirect vdevs don't have any 6078 * metaslabs. We want to set them up for 6079 * zio_claim(). 6080 */ 6081 vdev_metaslab_group_create(vd); 6082 VERIFY0(vdev_metaslab_init(vd, 0)); 6083 6084 vdev_indirect_mapping_t *vim __maybe_unused = 6085 vd->vdev_indirect_mapping; 6086 uint64_t vim_idx = 0; 6087 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 6088 6089 (void) fprintf(stderr, 6090 "\rloading indirect vdev %llu, " 6091 "metaslab %llu of %llu ...", 6092 (longlong_t)vd->vdev_id, 6093 (longlong_t)vd->vdev_ms[m]->ms_id, 6094 (longlong_t)vd->vdev_ms_count); 6095 6096 load_indirect_ms_allocatable_tree(vd, vd->vdev_ms[m], 6097 &vim_idx); 6098 } 6099 ASSERT3U(vim_idx, ==, vdev_indirect_mapping_num_entries(vim)); 6100 } 6101 } 6102 6103 static void 6104 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 6105 { 6106 zcb->zcb_spa = spa; 6107 6108 if (dump_opt['L']) 6109 return; 6110 6111 dsl_pool_t *dp = spa->spa_dsl_pool; 6112 vdev_t *rvd = spa->spa_root_vdev; 6113 6114 /* 6115 * We are going to be changing the meaning of the metaslab's 6116 * ms_allocatable. Ensure that the allocator doesn't try to 6117 * use the tree. 6118 */ 6119 spa->spa_normal_class->mc_ops = &zdb_metaslab_ops; 6120 spa->spa_log_class->mc_ops = &zdb_metaslab_ops; 6121 spa->spa_embedded_log_class->mc_ops = &zdb_metaslab_ops; 6122 6123 zcb->zcb_vd_obsolete_counts = 6124 umem_zalloc(rvd->vdev_children * sizeof (uint32_t *), 6125 UMEM_NOFAIL); 6126 6127 /* 6128 * For leak detection, we overload the ms_allocatable trees 6129 * to contain allocated segments instead of free segments. 6130 * As a result, we can't use the normal metaslab_load/unload 6131 * interfaces. 6132 */ 6133 zdb_leak_init_prepare_indirect_vdevs(spa, zcb); 6134 load_concrete_ms_allocatable_trees(spa, SM_ALLOC); 6135 6136 /* 6137 * On load_concrete_ms_allocatable_trees() we loaded all the 6138 * allocated entries from the ms_sm to the ms_allocatable for 6139 * each metaslab. If the pool has a checkpoint or is in the 6140 * middle of discarding a checkpoint, some of these blocks 6141 * may have been freed but their ms_sm may not have been 6142 * updated because they are referenced by the checkpoint. In 6143 * order to avoid false-positives during leak-detection, we 6144 * go through the vdev's checkpoint space map and exclude all 6145 * its entries from their relevant ms_allocatable. 6146 * 6147 * We also aggregate the space held by the checkpoint and add 6148 * it to zcb_checkpoint_size. 6149 * 6150 * Note that at this point we are also verifying that all the 6151 * entries on the checkpoint_sm are marked as allocated in 6152 * the ms_sm of their relevant metaslab. 6153 * [see comment in checkpoint_sm_exclude_entry_cb()] 6154 */ 6155 zdb_leak_init_exclude_checkpoint(spa, zcb); 6156 ASSERT3U(zcb->zcb_checkpoint_size, ==, spa_get_checkpoint_space(spa)); 6157 6158 /* for cleaner progress output */ 6159 (void) fprintf(stderr, "\n"); 6160 6161 if (bpobj_is_open(&dp->dp_obsolete_bpobj)) { 6162 ASSERT(spa_feature_is_enabled(spa, 6163 SPA_FEATURE_DEVICE_REMOVAL)); 6164 (void) bpobj_iterate_nofree(&dp->dp_obsolete_bpobj, 6165 increment_indirect_mapping_cb, zcb, NULL); 6166 } 6167 6168 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 6169 zdb_ddt_leak_init(spa, zcb); 6170 spa_config_exit(spa, SCL_CONFIG, FTAG); 6171 } 6172 6173 static boolean_t 6174 zdb_check_for_obsolete_leaks(vdev_t *vd, zdb_cb_t *zcb) 6175 { 6176 boolean_t leaks = B_FALSE; 6177 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 6178 uint64_t total_leaked = 0; 6179 boolean_t are_precise = B_FALSE; 6180 6181 ASSERT(vim != NULL); 6182 6183 for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) { 6184 vdev_indirect_mapping_entry_phys_t *vimep = 6185 &vim->vim_entries[i]; 6186 uint64_t obsolete_bytes = 0; 6187 uint64_t offset = DVA_MAPPING_GET_SRC_OFFSET(vimep); 6188 metaslab_t *msp = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 6189 6190 /* 6191 * This is not very efficient but it's easy to 6192 * verify correctness. 6193 */ 6194 for (uint64_t inner_offset = 0; 6195 inner_offset < DVA_GET_ASIZE(&vimep->vimep_dst); 6196 inner_offset += 1 << vd->vdev_ashift) { 6197 if (range_tree_contains(msp->ms_allocatable, 6198 offset + inner_offset, 1 << vd->vdev_ashift)) { 6199 obsolete_bytes += 1 << vd->vdev_ashift; 6200 } 6201 } 6202 6203 int64_t bytes_leaked = obsolete_bytes - 6204 zcb->zcb_vd_obsolete_counts[vd->vdev_id][i]; 6205 ASSERT3U(DVA_GET_ASIZE(&vimep->vimep_dst), >=, 6206 zcb->zcb_vd_obsolete_counts[vd->vdev_id][i]); 6207 6208 VERIFY0(vdev_obsolete_counts_are_precise(vd, &are_precise)); 6209 if (bytes_leaked != 0 && (are_precise || dump_opt['d'] >= 5)) { 6210 (void) printf("obsolete indirect mapping count " 6211 "mismatch on %llu:%llx:%llx : %llx bytes leaked\n", 6212 (u_longlong_t)vd->vdev_id, 6213 (u_longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep), 6214 (u_longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst), 6215 (u_longlong_t)bytes_leaked); 6216 } 6217 total_leaked += ABS(bytes_leaked); 6218 } 6219 6220 VERIFY0(vdev_obsolete_counts_are_precise(vd, &are_precise)); 6221 if (!are_precise && total_leaked > 0) { 6222 int pct_leaked = total_leaked * 100 / 6223 vdev_indirect_mapping_bytes_mapped(vim); 6224 (void) printf("cannot verify obsolete indirect mapping " 6225 "counts of vdev %llu because precise feature was not " 6226 "enabled when it was removed: %d%% (%llx bytes) of mapping" 6227 "unreferenced\n", 6228 (u_longlong_t)vd->vdev_id, pct_leaked, 6229 (u_longlong_t)total_leaked); 6230 } else if (total_leaked > 0) { 6231 (void) printf("obsolete indirect mapping count mismatch " 6232 "for vdev %llu -- %llx total bytes mismatched\n", 6233 (u_longlong_t)vd->vdev_id, 6234 (u_longlong_t)total_leaked); 6235 leaks |= B_TRUE; 6236 } 6237 6238 vdev_indirect_mapping_free_obsolete_counts(vim, 6239 zcb->zcb_vd_obsolete_counts[vd->vdev_id]); 6240 zcb->zcb_vd_obsolete_counts[vd->vdev_id] = NULL; 6241 6242 return (leaks); 6243 } 6244 6245 static boolean_t 6246 zdb_leak_fini(spa_t *spa, zdb_cb_t *zcb) 6247 { 6248 if (dump_opt['L']) 6249 return (B_FALSE); 6250 6251 boolean_t leaks = B_FALSE; 6252 vdev_t *rvd = spa->spa_root_vdev; 6253 for (unsigned c = 0; c < rvd->vdev_children; c++) { 6254 vdev_t *vd = rvd->vdev_child[c]; 6255 6256 if (zcb->zcb_vd_obsolete_counts[c] != NULL) { 6257 leaks |= zdb_check_for_obsolete_leaks(vd, zcb); 6258 } 6259 6260 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 6261 metaslab_t *msp = vd->vdev_ms[m]; 6262 ASSERT3P(msp->ms_group, ==, (msp->ms_group->mg_class == 6263 spa_embedded_log_class(spa)) ? 6264 vd->vdev_log_mg : vd->vdev_mg); 6265 6266 /* 6267 * ms_allocatable has been overloaded 6268 * to contain allocated segments. Now that 6269 * we finished traversing all blocks, any 6270 * block that remains in the ms_allocatable 6271 * represents an allocated block that we 6272 * did not claim during the traversal. 6273 * Claimed blocks would have been removed 6274 * from the ms_allocatable. For indirect 6275 * vdevs, space remaining in the tree 6276 * represents parts of the mapping that are 6277 * not referenced, which is not a bug. 6278 */ 6279 if (vd->vdev_ops == &vdev_indirect_ops) { 6280 range_tree_vacate(msp->ms_allocatable, 6281 NULL, NULL); 6282 } else { 6283 range_tree_vacate(msp->ms_allocatable, 6284 zdb_leak, vd); 6285 } 6286 if (msp->ms_loaded) { 6287 msp->ms_loaded = B_FALSE; 6288 } 6289 } 6290 } 6291 6292 umem_free(zcb->zcb_vd_obsolete_counts, 6293 rvd->vdev_children * sizeof (uint32_t *)); 6294 zcb->zcb_vd_obsolete_counts = NULL; 6295 6296 return (leaks); 6297 } 6298 6299 static int 6300 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 6301 { 6302 (void) tx; 6303 zdb_cb_t *zcb = arg; 6304 6305 if (dump_opt['b'] >= 5) { 6306 char blkbuf[BP_SPRINTF_LEN]; 6307 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 6308 (void) printf("[%s] %s\n", 6309 "deferred free", blkbuf); 6310 } 6311 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 6312 return (0); 6313 } 6314 6315 /* 6316 * Iterate over livelists which have been destroyed by the user but 6317 * are still present in the MOS, waiting to be freed 6318 */ 6319 static void 6320 iterate_deleted_livelists(spa_t *spa, ll_iter_t func, void *arg) 6321 { 6322 objset_t *mos = spa->spa_meta_objset; 6323 uint64_t zap_obj; 6324 int err = zap_lookup(mos, DMU_POOL_DIRECTORY_OBJECT, 6325 DMU_POOL_DELETED_CLONES, sizeof (uint64_t), 1, &zap_obj); 6326 if (err == ENOENT) 6327 return; 6328 ASSERT0(err); 6329 6330 zap_cursor_t zc; 6331 zap_attribute_t attr; 6332 dsl_deadlist_t ll; 6333 /* NULL out os prior to dsl_deadlist_open in case it's garbage */ 6334 ll.dl_os = NULL; 6335 for (zap_cursor_init(&zc, mos, zap_obj); 6336 zap_cursor_retrieve(&zc, &attr) == 0; 6337 (void) zap_cursor_advance(&zc)) { 6338 dsl_deadlist_open(&ll, mos, attr.za_first_integer); 6339 func(&ll, arg); 6340 dsl_deadlist_close(&ll); 6341 } 6342 zap_cursor_fini(&zc); 6343 } 6344 6345 static int 6346 bpobj_count_block_cb(void *arg, const blkptr_t *bp, boolean_t bp_freed, 6347 dmu_tx_t *tx) 6348 { 6349 ASSERT(!bp_freed); 6350 return (count_block_cb(arg, bp, tx)); 6351 } 6352 6353 static int 6354 livelist_entry_count_blocks_cb(void *args, dsl_deadlist_entry_t *dle) 6355 { 6356 zdb_cb_t *zbc = args; 6357 bplist_t blks; 6358 bplist_create(&blks); 6359 /* determine which blocks have been alloc'd but not freed */ 6360 VERIFY0(dsl_process_sub_livelist(&dle->dle_bpobj, &blks, NULL, NULL)); 6361 /* count those blocks */ 6362 (void) bplist_iterate(&blks, count_block_cb, zbc, NULL); 6363 bplist_destroy(&blks); 6364 return (0); 6365 } 6366 6367 static void 6368 livelist_count_blocks(dsl_deadlist_t *ll, void *arg) 6369 { 6370 dsl_deadlist_iterate(ll, livelist_entry_count_blocks_cb, arg); 6371 } 6372 6373 /* 6374 * Count the blocks in the livelists that have been destroyed by the user 6375 * but haven't yet been freed. 6376 */ 6377 static void 6378 deleted_livelists_count_blocks(spa_t *spa, zdb_cb_t *zbc) 6379 { 6380 iterate_deleted_livelists(spa, livelist_count_blocks, zbc); 6381 } 6382 6383 static void 6384 dump_livelist_cb(dsl_deadlist_t *ll, void *arg) 6385 { 6386 ASSERT3P(arg, ==, NULL); 6387 global_feature_count[SPA_FEATURE_LIVELIST]++; 6388 dump_blkptr_list(ll, "Deleted Livelist"); 6389 dsl_deadlist_iterate(ll, sublivelist_verify_lightweight, NULL); 6390 } 6391 6392 /* 6393 * Print out, register object references to, and increment feature counts for 6394 * livelists that have been destroyed by the user but haven't yet been freed. 6395 */ 6396 static void 6397 deleted_livelists_dump_mos(spa_t *spa) 6398 { 6399 uint64_t zap_obj; 6400 objset_t *mos = spa->spa_meta_objset; 6401 int err = zap_lookup(mos, DMU_POOL_DIRECTORY_OBJECT, 6402 DMU_POOL_DELETED_CLONES, sizeof (uint64_t), 1, &zap_obj); 6403 if (err == ENOENT) 6404 return; 6405 mos_obj_refd(zap_obj); 6406 iterate_deleted_livelists(spa, dump_livelist_cb, NULL); 6407 } 6408 6409 static int 6410 dump_block_stats(spa_t *spa) 6411 { 6412 zdb_cb_t zcb; 6413 zdb_blkstats_t *zb, *tzb; 6414 uint64_t norm_alloc, norm_space, total_alloc, total_found; 6415 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | 6416 TRAVERSE_NO_DECRYPT | TRAVERSE_HARD; 6417 boolean_t leaks = B_FALSE; 6418 int e, c, err; 6419 bp_embedded_type_t i; 6420 6421 bzero(&zcb, sizeof (zcb)); 6422 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 6423 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 6424 (dump_opt['c'] == 1) ? "metadata " : "", 6425 dump_opt['c'] ? "checksums " : "", 6426 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 6427 !dump_opt['L'] ? "nothing leaked " : ""); 6428 6429 /* 6430 * When leak detection is enabled we load all space maps as SM_ALLOC 6431 * maps, then traverse the pool claiming each block we discover. If 6432 * the pool is perfectly consistent, the segment trees will be empty 6433 * when we're done. Anything left over is a leak; any block we can't 6434 * claim (because it's not part of any space map) is a double 6435 * allocation, reference to a freed block, or an unclaimed log block. 6436 * 6437 * When leak detection is disabled (-L option) we still traverse the 6438 * pool claiming each block we discover, but we skip opening any space 6439 * maps. 6440 */ 6441 bzero(&zcb, sizeof (zdb_cb_t)); 6442 zdb_leak_init(spa, &zcb); 6443 6444 /* 6445 * If there's a deferred-free bplist, process that first. 6446 */ 6447 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 6448 bpobj_count_block_cb, &zcb, NULL); 6449 6450 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 6451 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 6452 bpobj_count_block_cb, &zcb, NULL); 6453 } 6454 6455 zdb_claim_removing(spa, &zcb); 6456 6457 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 6458 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 6459 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 6460 &zcb, NULL)); 6461 } 6462 6463 deleted_livelists_count_blocks(spa, &zcb); 6464 6465 if (dump_opt['c'] > 1) 6466 flags |= TRAVERSE_PREFETCH_DATA; 6467 6468 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 6469 zcb.zcb_totalasize += metaslab_class_get_alloc(spa_special_class(spa)); 6470 zcb.zcb_totalasize += metaslab_class_get_alloc(spa_dedup_class(spa)); 6471 zcb.zcb_totalasize += 6472 metaslab_class_get_alloc(spa_embedded_log_class(spa)); 6473 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 6474 err = traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 6475 6476 /* 6477 * If we've traversed the data blocks then we need to wait for those 6478 * I/Os to complete. We leverage "The Godfather" zio to wait on 6479 * all async I/Os to complete. 6480 */ 6481 if (dump_opt['c']) { 6482 for (c = 0; c < max_ncpus; c++) { 6483 (void) zio_wait(spa->spa_async_zio_root[c]); 6484 spa->spa_async_zio_root[c] = zio_root(spa, NULL, NULL, 6485 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 6486 ZIO_FLAG_GODFATHER); 6487 } 6488 } 6489 ASSERT0(spa->spa_load_verify_bytes); 6490 6491 /* 6492 * Done after zio_wait() since zcb_haderrors is modified in 6493 * zdb_blkptr_done() 6494 */ 6495 zcb.zcb_haderrors |= err; 6496 6497 if (zcb.zcb_haderrors) { 6498 (void) printf("\nError counts:\n\n"); 6499 (void) printf("\t%5s %s\n", "errno", "count"); 6500 for (e = 0; e < 256; e++) { 6501 if (zcb.zcb_errors[e] != 0) { 6502 (void) printf("\t%5d %llu\n", 6503 e, (u_longlong_t)zcb.zcb_errors[e]); 6504 } 6505 } 6506 } 6507 6508 /* 6509 * Report any leaked segments. 6510 */ 6511 leaks |= zdb_leak_fini(spa, &zcb); 6512 6513 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 6514 6515 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 6516 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 6517 6518 total_alloc = norm_alloc + 6519 metaslab_class_get_alloc(spa_log_class(spa)) + 6520 metaslab_class_get_alloc(spa_embedded_log_class(spa)) + 6521 metaslab_class_get_alloc(spa_special_class(spa)) + 6522 metaslab_class_get_alloc(spa_dedup_class(spa)) + 6523 get_unflushed_alloc_space(spa); 6524 total_found = tzb->zb_asize - zcb.zcb_dedup_asize + 6525 zcb.zcb_removing_size + zcb.zcb_checkpoint_size; 6526 6527 if (total_found == total_alloc && !dump_opt['L']) { 6528 (void) printf("\n\tNo leaks (block sum matches space" 6529 " maps exactly)\n"); 6530 } else if (!dump_opt['L']) { 6531 (void) printf("block traversal size %llu != alloc %llu " 6532 "(%s %lld)\n", 6533 (u_longlong_t)total_found, 6534 (u_longlong_t)total_alloc, 6535 (dump_opt['L']) ? "unreachable" : "leaked", 6536 (longlong_t)(total_alloc - total_found)); 6537 leaks = B_TRUE; 6538 } 6539 6540 if (tzb->zb_count == 0) 6541 return (2); 6542 6543 (void) printf("\n"); 6544 (void) printf("\t%-16s %14llu\n", "bp count:", 6545 (u_longlong_t)tzb->zb_count); 6546 (void) printf("\t%-16s %14llu\n", "ganged count:", 6547 (longlong_t)tzb->zb_gangs); 6548 (void) printf("\t%-16s %14llu avg: %6llu\n", "bp logical:", 6549 (u_longlong_t)tzb->zb_lsize, 6550 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 6551 (void) printf("\t%-16s %14llu avg: %6llu compression: %6.2f\n", 6552 "bp physical:", (u_longlong_t)tzb->zb_psize, 6553 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 6554 (double)tzb->zb_lsize / tzb->zb_psize); 6555 (void) printf("\t%-16s %14llu avg: %6llu compression: %6.2f\n", 6556 "bp allocated:", (u_longlong_t)tzb->zb_asize, 6557 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 6558 (double)tzb->zb_lsize / tzb->zb_asize); 6559 (void) printf("\t%-16s %14llu ref>1: %6llu deduplication: %6.2f\n", 6560 "bp deduped:", (u_longlong_t)zcb.zcb_dedup_asize, 6561 (u_longlong_t)zcb.zcb_dedup_blocks, 6562 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 6563 (void) printf("\t%-16s %14llu used: %5.2f%%\n", "Normal class:", 6564 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 6565 6566 if (spa_special_class(spa)->mc_allocator[0].mca_rotor != NULL) { 6567 uint64_t alloc = metaslab_class_get_alloc( 6568 spa_special_class(spa)); 6569 uint64_t space = metaslab_class_get_space( 6570 spa_special_class(spa)); 6571 6572 (void) printf("\t%-16s %14llu used: %5.2f%%\n", 6573 "Special class", (u_longlong_t)alloc, 6574 100.0 * alloc / space); 6575 } 6576 6577 if (spa_dedup_class(spa)->mc_allocator[0].mca_rotor != NULL) { 6578 uint64_t alloc = metaslab_class_get_alloc( 6579 spa_dedup_class(spa)); 6580 uint64_t space = metaslab_class_get_space( 6581 spa_dedup_class(spa)); 6582 6583 (void) printf("\t%-16s %14llu used: %5.2f%%\n", 6584 "Dedup class", (u_longlong_t)alloc, 6585 100.0 * alloc / space); 6586 } 6587 6588 if (spa_embedded_log_class(spa)->mc_allocator[0].mca_rotor != NULL) { 6589 uint64_t alloc = metaslab_class_get_alloc( 6590 spa_embedded_log_class(spa)); 6591 uint64_t space = metaslab_class_get_space( 6592 spa_embedded_log_class(spa)); 6593 6594 (void) printf("\t%-16s %14llu used: %5.2f%%\n", 6595 "Embedded log class", (u_longlong_t)alloc, 6596 100.0 * alloc / space); 6597 } 6598 6599 for (i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) { 6600 if (zcb.zcb_embedded_blocks[i] == 0) 6601 continue; 6602 (void) printf("\n"); 6603 (void) printf("\tadditional, non-pointer bps of type %u: " 6604 "%10llu\n", 6605 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]); 6606 6607 if (dump_opt['b'] >= 3) { 6608 (void) printf("\t number of (compressed) bytes: " 6609 "number of bps\n"); 6610 dump_histogram(zcb.zcb_embedded_histogram[i], 6611 sizeof (zcb.zcb_embedded_histogram[i]) / 6612 sizeof (zcb.zcb_embedded_histogram[i][0]), 0); 6613 } 6614 } 6615 6616 if (tzb->zb_ditto_samevdev != 0) { 6617 (void) printf("\tDittoed blocks on same vdev: %llu\n", 6618 (longlong_t)tzb->zb_ditto_samevdev); 6619 } 6620 if (tzb->zb_ditto_same_ms != 0) { 6621 (void) printf("\tDittoed blocks in same metaslab: %llu\n", 6622 (longlong_t)tzb->zb_ditto_same_ms); 6623 } 6624 6625 for (uint64_t v = 0; v < spa->spa_root_vdev->vdev_children; v++) { 6626 vdev_t *vd = spa->spa_root_vdev->vdev_child[v]; 6627 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 6628 6629 if (vim == NULL) { 6630 continue; 6631 } 6632 6633 char mem[32]; 6634 zdb_nicenum(vdev_indirect_mapping_num_entries(vim), 6635 mem, vdev_indirect_mapping_size(vim)); 6636 6637 (void) printf("\tindirect vdev id %llu has %llu segments " 6638 "(%s in memory)\n", 6639 (longlong_t)vd->vdev_id, 6640 (longlong_t)vdev_indirect_mapping_num_entries(vim), mem); 6641 } 6642 6643 if (dump_opt['b'] >= 2) { 6644 int l, t, level; 6645 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 6646 "\t avg\t comp\t%%Total\tType\n"); 6647 6648 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 6649 char csize[32], lsize[32], psize[32], asize[32]; 6650 char avg[32], gang[32]; 6651 const char *typename; 6652 6653 /* make sure nicenum has enough space */ 6654 CTASSERT(sizeof (csize) >= NN_NUMBUF_SZ); 6655 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ); 6656 CTASSERT(sizeof (psize) >= NN_NUMBUF_SZ); 6657 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ); 6658 CTASSERT(sizeof (avg) >= NN_NUMBUF_SZ); 6659 CTASSERT(sizeof (gang) >= NN_NUMBUF_SZ); 6660 6661 if (t < DMU_OT_NUMTYPES) 6662 typename = dmu_ot[t].ot_name; 6663 else 6664 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 6665 6666 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 6667 (void) printf("%6s\t%5s\t%5s\t%5s" 6668 "\t%5s\t%5s\t%6s\t%s\n", 6669 "-", 6670 "-", 6671 "-", 6672 "-", 6673 "-", 6674 "-", 6675 "-", 6676 typename); 6677 continue; 6678 } 6679 6680 for (l = ZB_TOTAL - 1; l >= -1; l--) { 6681 level = (l == -1 ? ZB_TOTAL : l); 6682 zb = &zcb.zcb_type[level][t]; 6683 6684 if (zb->zb_asize == 0) 6685 continue; 6686 6687 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 6688 continue; 6689 6690 if (level == 0 && zb->zb_asize == 6691 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 6692 continue; 6693 6694 zdb_nicenum(zb->zb_count, csize, 6695 sizeof (csize)); 6696 zdb_nicenum(zb->zb_lsize, lsize, 6697 sizeof (lsize)); 6698 zdb_nicenum(zb->zb_psize, psize, 6699 sizeof (psize)); 6700 zdb_nicenum(zb->zb_asize, asize, 6701 sizeof (asize)); 6702 zdb_nicenum(zb->zb_asize / zb->zb_count, avg, 6703 sizeof (avg)); 6704 zdb_nicenum(zb->zb_gangs, gang, sizeof (gang)); 6705 6706 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 6707 "\t%5.2f\t%6.2f\t", 6708 csize, lsize, psize, asize, avg, 6709 (double)zb->zb_lsize / zb->zb_psize, 6710 100.0 * zb->zb_asize / tzb->zb_asize); 6711 6712 if (level == ZB_TOTAL) 6713 (void) printf("%s\n", typename); 6714 else 6715 (void) printf(" L%d %s\n", 6716 level, typename); 6717 6718 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { 6719 (void) printf("\t number of ganged " 6720 "blocks: %s\n", gang); 6721 } 6722 6723 if (dump_opt['b'] >= 4) { 6724 (void) printf("psize " 6725 "(in 512-byte sectors): " 6726 "number of blocks\n"); 6727 dump_histogram(zb->zb_psize_histogram, 6728 PSIZE_HISTO_SIZE, 0); 6729 } 6730 } 6731 } 6732 6733 /* Output a table summarizing block sizes in the pool */ 6734 if (dump_opt['b'] >= 2) { 6735 dump_size_histograms(&zcb); 6736 } 6737 } 6738 6739 (void) printf("\n"); 6740 6741 if (leaks) 6742 return (2); 6743 6744 if (zcb.zcb_haderrors) 6745 return (3); 6746 6747 return (0); 6748 } 6749 6750 typedef struct zdb_ddt_entry { 6751 ddt_key_t zdde_key; 6752 uint64_t zdde_ref_blocks; 6753 uint64_t zdde_ref_lsize; 6754 uint64_t zdde_ref_psize; 6755 uint64_t zdde_ref_dsize; 6756 avl_node_t zdde_node; 6757 } zdb_ddt_entry_t; 6758 6759 static int 6760 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 6761 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 6762 { 6763 (void) zilog, (void) dnp; 6764 avl_tree_t *t = arg; 6765 avl_index_t where; 6766 zdb_ddt_entry_t *zdde, zdde_search; 6767 6768 if (zb->zb_level == ZB_DNODE_LEVEL || BP_IS_HOLE(bp) || 6769 BP_IS_EMBEDDED(bp)) 6770 return (0); 6771 6772 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 6773 (void) printf("traversing objset %llu, %llu objects, " 6774 "%lu blocks so far\n", 6775 (u_longlong_t)zb->zb_objset, 6776 (u_longlong_t)BP_GET_FILL(bp), 6777 avl_numnodes(t)); 6778 } 6779 6780 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 6781 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 6782 return (0); 6783 6784 ddt_key_fill(&zdde_search.zdde_key, bp); 6785 6786 zdde = avl_find(t, &zdde_search, &where); 6787 6788 if (zdde == NULL) { 6789 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 6790 zdde->zdde_key = zdde_search.zdde_key; 6791 avl_insert(t, zdde, where); 6792 } 6793 6794 zdde->zdde_ref_blocks += 1; 6795 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 6796 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 6797 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 6798 6799 return (0); 6800 } 6801 6802 static void 6803 dump_simulated_ddt(spa_t *spa) 6804 { 6805 avl_tree_t t; 6806 void *cookie = NULL; 6807 zdb_ddt_entry_t *zdde; 6808 ddt_histogram_t ddh_total; 6809 ddt_stat_t dds_total; 6810 6811 bzero(&ddh_total, sizeof (ddh_total)); 6812 bzero(&dds_total, sizeof (dds_total)); 6813 avl_create(&t, ddt_entry_compare, 6814 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 6815 6816 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 6817 6818 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | 6819 TRAVERSE_NO_DECRYPT, zdb_ddt_add_cb, &t); 6820 6821 spa_config_exit(spa, SCL_CONFIG, FTAG); 6822 6823 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 6824 ddt_stat_t dds; 6825 uint64_t refcnt = zdde->zdde_ref_blocks; 6826 ASSERT(refcnt != 0); 6827 6828 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 6829 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 6830 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 6831 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 6832 6833 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 6834 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 6835 dds.dds_ref_psize = zdde->zdde_ref_psize; 6836 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 6837 6838 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1], 6839 &dds, 0); 6840 6841 umem_free(zdde, sizeof (*zdde)); 6842 } 6843 6844 avl_destroy(&t); 6845 6846 ddt_histogram_stat(&dds_total, &ddh_total); 6847 6848 (void) printf("Simulated DDT histogram:\n"); 6849 6850 zpool_dump_ddt(&dds_total, &ddh_total); 6851 6852 dump_dedup_ratio(&dds_total); 6853 } 6854 6855 static int 6856 verify_device_removal_feature_counts(spa_t *spa) 6857 { 6858 uint64_t dr_feature_refcount = 0; 6859 uint64_t oc_feature_refcount = 0; 6860 uint64_t indirect_vdev_count = 0; 6861 uint64_t precise_vdev_count = 0; 6862 uint64_t obsolete_counts_object_count = 0; 6863 uint64_t obsolete_sm_count = 0; 6864 uint64_t obsolete_counts_count = 0; 6865 uint64_t scip_count = 0; 6866 uint64_t obsolete_bpobj_count = 0; 6867 int ret = 0; 6868 6869 spa_condensing_indirect_phys_t *scip = 6870 &spa->spa_condensing_indirect_phys; 6871 if (scip->scip_next_mapping_object != 0) { 6872 vdev_t *vd = spa->spa_root_vdev->vdev_child[scip->scip_vdev]; 6873 ASSERT(scip->scip_prev_obsolete_sm_object != 0); 6874 ASSERT3P(vd->vdev_ops, ==, &vdev_indirect_ops); 6875 6876 (void) printf("Condensing indirect vdev %llu: new mapping " 6877 "object %llu, prev obsolete sm %llu\n", 6878 (u_longlong_t)scip->scip_vdev, 6879 (u_longlong_t)scip->scip_next_mapping_object, 6880 (u_longlong_t)scip->scip_prev_obsolete_sm_object); 6881 if (scip->scip_prev_obsolete_sm_object != 0) { 6882 space_map_t *prev_obsolete_sm = NULL; 6883 VERIFY0(space_map_open(&prev_obsolete_sm, 6884 spa->spa_meta_objset, 6885 scip->scip_prev_obsolete_sm_object, 6886 0, vd->vdev_asize, 0)); 6887 dump_spacemap(spa->spa_meta_objset, prev_obsolete_sm); 6888 (void) printf("\n"); 6889 space_map_close(prev_obsolete_sm); 6890 } 6891 6892 scip_count += 2; 6893 } 6894 6895 for (uint64_t i = 0; i < spa->spa_root_vdev->vdev_children; i++) { 6896 vdev_t *vd = spa->spa_root_vdev->vdev_child[i]; 6897 vdev_indirect_config_t *vic = &vd->vdev_indirect_config; 6898 6899 if (vic->vic_mapping_object != 0) { 6900 ASSERT(vd->vdev_ops == &vdev_indirect_ops || 6901 vd->vdev_removing); 6902 indirect_vdev_count++; 6903 6904 if (vd->vdev_indirect_mapping->vim_havecounts) { 6905 obsolete_counts_count++; 6906 } 6907 } 6908 6909 boolean_t are_precise; 6910 VERIFY0(vdev_obsolete_counts_are_precise(vd, &are_precise)); 6911 if (are_precise) { 6912 ASSERT(vic->vic_mapping_object != 0); 6913 precise_vdev_count++; 6914 } 6915 6916 uint64_t obsolete_sm_object; 6917 VERIFY0(vdev_obsolete_sm_object(vd, &obsolete_sm_object)); 6918 if (obsolete_sm_object != 0) { 6919 ASSERT(vic->vic_mapping_object != 0); 6920 obsolete_sm_count++; 6921 } 6922 } 6923 6924 (void) feature_get_refcount(spa, 6925 &spa_feature_table[SPA_FEATURE_DEVICE_REMOVAL], 6926 &dr_feature_refcount); 6927 (void) feature_get_refcount(spa, 6928 &spa_feature_table[SPA_FEATURE_OBSOLETE_COUNTS], 6929 &oc_feature_refcount); 6930 6931 if (dr_feature_refcount != indirect_vdev_count) { 6932 ret = 1; 6933 (void) printf("Number of indirect vdevs (%llu) " \ 6934 "does not match feature count (%llu)\n", 6935 (u_longlong_t)indirect_vdev_count, 6936 (u_longlong_t)dr_feature_refcount); 6937 } else { 6938 (void) printf("Verified device_removal feature refcount " \ 6939 "of %llu is correct\n", 6940 (u_longlong_t)dr_feature_refcount); 6941 } 6942 6943 if (zap_contains(spa_meta_objset(spa), DMU_POOL_DIRECTORY_OBJECT, 6944 DMU_POOL_OBSOLETE_BPOBJ) == 0) { 6945 obsolete_bpobj_count++; 6946 } 6947 6948 6949 obsolete_counts_object_count = precise_vdev_count; 6950 obsolete_counts_object_count += obsolete_sm_count; 6951 obsolete_counts_object_count += obsolete_counts_count; 6952 obsolete_counts_object_count += scip_count; 6953 obsolete_counts_object_count += obsolete_bpobj_count; 6954 obsolete_counts_object_count += remap_deadlist_count; 6955 6956 if (oc_feature_refcount != obsolete_counts_object_count) { 6957 ret = 1; 6958 (void) printf("Number of obsolete counts objects (%llu) " \ 6959 "does not match feature count (%llu)\n", 6960 (u_longlong_t)obsolete_counts_object_count, 6961 (u_longlong_t)oc_feature_refcount); 6962 (void) printf("pv:%llu os:%llu oc:%llu sc:%llu " 6963 "ob:%llu rd:%llu\n", 6964 (u_longlong_t)precise_vdev_count, 6965 (u_longlong_t)obsolete_sm_count, 6966 (u_longlong_t)obsolete_counts_count, 6967 (u_longlong_t)scip_count, 6968 (u_longlong_t)obsolete_bpobj_count, 6969 (u_longlong_t)remap_deadlist_count); 6970 } else { 6971 (void) printf("Verified indirect_refcount feature refcount " \ 6972 "of %llu is correct\n", 6973 (u_longlong_t)oc_feature_refcount); 6974 } 6975 return (ret); 6976 } 6977 6978 static void 6979 zdb_set_skip_mmp(char *target) 6980 { 6981 spa_t *spa; 6982 6983 /* 6984 * Disable the activity check to allow examination of 6985 * active pools. 6986 */ 6987 mutex_enter(&spa_namespace_lock); 6988 if ((spa = spa_lookup(target)) != NULL) { 6989 spa->spa_import_flags |= ZFS_IMPORT_SKIP_MMP; 6990 } 6991 mutex_exit(&spa_namespace_lock); 6992 } 6993 6994 #define BOGUS_SUFFIX "_CHECKPOINTED_UNIVERSE" 6995 /* 6996 * Import the checkpointed state of the pool specified by the target 6997 * parameter as readonly. The function also accepts a pool config 6998 * as an optional parameter, else it attempts to infer the config by 6999 * the name of the target pool. 7000 * 7001 * Note that the checkpointed state's pool name will be the name of 7002 * the original pool with the above suffix appended to it. In addition, 7003 * if the target is not a pool name (e.g. a path to a dataset) then 7004 * the new_path parameter is populated with the updated path to 7005 * reflect the fact that we are looking into the checkpointed state. 7006 * 7007 * The function returns a newly-allocated copy of the name of the 7008 * pool containing the checkpointed state. When this copy is no 7009 * longer needed it should be freed with free(3C). Same thing 7010 * applies to the new_path parameter if allocated. 7011 */ 7012 static char * 7013 import_checkpointed_state(char *target, nvlist_t *cfg, char **new_path) 7014 { 7015 int error = 0; 7016 char *poolname, *bogus_name = NULL; 7017 boolean_t freecfg = B_FALSE; 7018 7019 /* If the target is not a pool, the extract the pool name */ 7020 char *path_start = strchr(target, '/'); 7021 if (path_start != NULL) { 7022 size_t poolname_len = path_start - target; 7023 poolname = strndup(target, poolname_len); 7024 } else { 7025 poolname = target; 7026 } 7027 7028 if (cfg == NULL) { 7029 zdb_set_skip_mmp(poolname); 7030 error = spa_get_stats(poolname, &cfg, NULL, 0); 7031 if (error != 0) { 7032 fatal("Tried to read config of pool \"%s\" but " 7033 "spa_get_stats() failed with error %d\n", 7034 poolname, error); 7035 } 7036 freecfg = B_TRUE; 7037 } 7038 7039 if (asprintf(&bogus_name, "%s%s", poolname, BOGUS_SUFFIX) == -1) 7040 return (NULL); 7041 fnvlist_add_string(cfg, ZPOOL_CONFIG_POOL_NAME, bogus_name); 7042 7043 error = spa_import(bogus_name, cfg, NULL, 7044 ZFS_IMPORT_MISSING_LOG | ZFS_IMPORT_CHECKPOINT | 7045 ZFS_IMPORT_SKIP_MMP); 7046 if (freecfg) 7047 nvlist_free(cfg); 7048 if (error != 0) { 7049 fatal("Tried to import pool \"%s\" but spa_import() failed " 7050 "with error %d\n", bogus_name, error); 7051 } 7052 7053 if (new_path != NULL && path_start != NULL) { 7054 if (asprintf(new_path, "%s%s", bogus_name, path_start) == -1) { 7055 if (path_start != NULL) 7056 free(poolname); 7057 return (NULL); 7058 } 7059 } 7060 7061 if (target != poolname) 7062 free(poolname); 7063 7064 return (bogus_name); 7065 } 7066 7067 typedef struct verify_checkpoint_sm_entry_cb_arg { 7068 vdev_t *vcsec_vd; 7069 7070 /* the following fields are only used for printing progress */ 7071 uint64_t vcsec_entryid; 7072 uint64_t vcsec_num_entries; 7073 } verify_checkpoint_sm_entry_cb_arg_t; 7074 7075 #define ENTRIES_PER_PROGRESS_UPDATE 10000 7076 7077 static int 7078 verify_checkpoint_sm_entry_cb(space_map_entry_t *sme, void *arg) 7079 { 7080 verify_checkpoint_sm_entry_cb_arg_t *vcsec = arg; 7081 vdev_t *vd = vcsec->vcsec_vd; 7082 metaslab_t *ms = vd->vdev_ms[sme->sme_offset >> vd->vdev_ms_shift]; 7083 uint64_t end = sme->sme_offset + sme->sme_run; 7084 7085 ASSERT(sme->sme_type == SM_FREE); 7086 7087 if ((vcsec->vcsec_entryid % ENTRIES_PER_PROGRESS_UPDATE) == 0) { 7088 (void) fprintf(stderr, 7089 "\rverifying vdev %llu, space map entry %llu of %llu ...", 7090 (longlong_t)vd->vdev_id, 7091 (longlong_t)vcsec->vcsec_entryid, 7092 (longlong_t)vcsec->vcsec_num_entries); 7093 } 7094 vcsec->vcsec_entryid++; 7095 7096 /* 7097 * See comment in checkpoint_sm_exclude_entry_cb() 7098 */ 7099 VERIFY3U(sme->sme_offset, >=, ms->ms_start); 7100 VERIFY3U(end, <=, ms->ms_start + ms->ms_size); 7101 7102 /* 7103 * The entries in the vdev_checkpoint_sm should be marked as 7104 * allocated in the checkpointed state of the pool, therefore 7105 * their respective ms_allocateable trees should not contain them. 7106 */ 7107 mutex_enter(&ms->ms_lock); 7108 range_tree_verify_not_present(ms->ms_allocatable, 7109 sme->sme_offset, sme->sme_run); 7110 mutex_exit(&ms->ms_lock); 7111 7112 return (0); 7113 } 7114 7115 /* 7116 * Verify that all segments in the vdev_checkpoint_sm are allocated 7117 * according to the checkpoint's ms_sm (i.e. are not in the checkpoint's 7118 * ms_allocatable). 7119 * 7120 * Do so by comparing the checkpoint space maps (vdev_checkpoint_sm) of 7121 * each vdev in the current state of the pool to the metaslab space maps 7122 * (ms_sm) of the checkpointed state of the pool. 7123 * 7124 * Note that the function changes the state of the ms_allocatable 7125 * trees of the current spa_t. The entries of these ms_allocatable 7126 * trees are cleared out and then repopulated from with the free 7127 * entries of their respective ms_sm space maps. 7128 */ 7129 static void 7130 verify_checkpoint_vdev_spacemaps(spa_t *checkpoint, spa_t *current) 7131 { 7132 vdev_t *ckpoint_rvd = checkpoint->spa_root_vdev; 7133 vdev_t *current_rvd = current->spa_root_vdev; 7134 7135 load_concrete_ms_allocatable_trees(checkpoint, SM_FREE); 7136 7137 for (uint64_t c = 0; c < ckpoint_rvd->vdev_children; c++) { 7138 vdev_t *ckpoint_vd = ckpoint_rvd->vdev_child[c]; 7139 vdev_t *current_vd = current_rvd->vdev_child[c]; 7140 7141 space_map_t *checkpoint_sm = NULL; 7142 uint64_t checkpoint_sm_obj; 7143 7144 if (ckpoint_vd->vdev_ops == &vdev_indirect_ops) { 7145 /* 7146 * Since we don't allow device removal in a pool 7147 * that has a checkpoint, we expect that all removed 7148 * vdevs were removed from the pool before the 7149 * checkpoint. 7150 */ 7151 ASSERT3P(current_vd->vdev_ops, ==, &vdev_indirect_ops); 7152 continue; 7153 } 7154 7155 /* 7156 * If the checkpoint space map doesn't exist, then nothing 7157 * here is checkpointed so there's nothing to verify. 7158 */ 7159 if (current_vd->vdev_top_zap == 0 || 7160 zap_contains(spa_meta_objset(current), 7161 current_vd->vdev_top_zap, 7162 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0) 7163 continue; 7164 7165 VERIFY0(zap_lookup(spa_meta_objset(current), 7166 current_vd->vdev_top_zap, VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, 7167 sizeof (uint64_t), 1, &checkpoint_sm_obj)); 7168 7169 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(current), 7170 checkpoint_sm_obj, 0, current_vd->vdev_asize, 7171 current_vd->vdev_ashift)); 7172 7173 verify_checkpoint_sm_entry_cb_arg_t vcsec; 7174 vcsec.vcsec_vd = ckpoint_vd; 7175 vcsec.vcsec_entryid = 0; 7176 vcsec.vcsec_num_entries = 7177 space_map_length(checkpoint_sm) / sizeof (uint64_t); 7178 VERIFY0(space_map_iterate(checkpoint_sm, 7179 space_map_length(checkpoint_sm), 7180 verify_checkpoint_sm_entry_cb, &vcsec)); 7181 if (dump_opt['m'] > 3) 7182 dump_spacemap(current->spa_meta_objset, checkpoint_sm); 7183 space_map_close(checkpoint_sm); 7184 } 7185 7186 /* 7187 * If we've added vdevs since we took the checkpoint, ensure 7188 * that their checkpoint space maps are empty. 7189 */ 7190 if (ckpoint_rvd->vdev_children < current_rvd->vdev_children) { 7191 for (uint64_t c = ckpoint_rvd->vdev_children; 7192 c < current_rvd->vdev_children; c++) { 7193 vdev_t *current_vd = current_rvd->vdev_child[c]; 7194 VERIFY3P(current_vd->vdev_checkpoint_sm, ==, NULL); 7195 } 7196 } 7197 7198 /* for cleaner progress output */ 7199 (void) fprintf(stderr, "\n"); 7200 } 7201 7202 /* 7203 * Verifies that all space that's allocated in the checkpoint is 7204 * still allocated in the current version, by checking that everything 7205 * in checkpoint's ms_allocatable (which is actually allocated, not 7206 * allocatable/free) is not present in current's ms_allocatable. 7207 * 7208 * Note that the function changes the state of the ms_allocatable 7209 * trees of both spas when called. The entries of all ms_allocatable 7210 * trees are cleared out and then repopulated from their respective 7211 * ms_sm space maps. In the checkpointed state we load the allocated 7212 * entries, and in the current state we load the free entries. 7213 */ 7214 static void 7215 verify_checkpoint_ms_spacemaps(spa_t *checkpoint, spa_t *current) 7216 { 7217 vdev_t *ckpoint_rvd = checkpoint->spa_root_vdev; 7218 vdev_t *current_rvd = current->spa_root_vdev; 7219 7220 load_concrete_ms_allocatable_trees(checkpoint, SM_ALLOC); 7221 load_concrete_ms_allocatable_trees(current, SM_FREE); 7222 7223 for (uint64_t i = 0; i < ckpoint_rvd->vdev_children; i++) { 7224 vdev_t *ckpoint_vd = ckpoint_rvd->vdev_child[i]; 7225 vdev_t *current_vd = current_rvd->vdev_child[i]; 7226 7227 if (ckpoint_vd->vdev_ops == &vdev_indirect_ops) { 7228 /* 7229 * See comment in verify_checkpoint_vdev_spacemaps() 7230 */ 7231 ASSERT3P(current_vd->vdev_ops, ==, &vdev_indirect_ops); 7232 continue; 7233 } 7234 7235 for (uint64_t m = 0; m < ckpoint_vd->vdev_ms_count; m++) { 7236 metaslab_t *ckpoint_msp = ckpoint_vd->vdev_ms[m]; 7237 metaslab_t *current_msp = current_vd->vdev_ms[m]; 7238 7239 (void) fprintf(stderr, 7240 "\rverifying vdev %llu of %llu, " 7241 "metaslab %llu of %llu ...", 7242 (longlong_t)current_vd->vdev_id, 7243 (longlong_t)current_rvd->vdev_children, 7244 (longlong_t)current_vd->vdev_ms[m]->ms_id, 7245 (longlong_t)current_vd->vdev_ms_count); 7246 7247 /* 7248 * We walk through the ms_allocatable trees that 7249 * are loaded with the allocated blocks from the 7250 * ms_sm spacemaps of the checkpoint. For each 7251 * one of these ranges we ensure that none of them 7252 * exists in the ms_allocatable trees of the 7253 * current state which are loaded with the ranges 7254 * that are currently free. 7255 * 7256 * This way we ensure that none of the blocks that 7257 * are part of the checkpoint were freed by mistake. 7258 */ 7259 range_tree_walk(ckpoint_msp->ms_allocatable, 7260 (range_tree_func_t *)range_tree_verify_not_present, 7261 current_msp->ms_allocatable); 7262 } 7263 } 7264 7265 /* for cleaner progress output */ 7266 (void) fprintf(stderr, "\n"); 7267 } 7268 7269 static void 7270 verify_checkpoint_blocks(spa_t *spa) 7271 { 7272 ASSERT(!dump_opt['L']); 7273 7274 spa_t *checkpoint_spa; 7275 char *checkpoint_pool; 7276 int error = 0; 7277 7278 /* 7279 * We import the checkpointed state of the pool (under a different 7280 * name) so we can do verification on it against the current state 7281 * of the pool. 7282 */ 7283 checkpoint_pool = import_checkpointed_state(spa->spa_name, NULL, 7284 NULL); 7285 ASSERT(strcmp(spa->spa_name, checkpoint_pool) != 0); 7286 7287 error = spa_open(checkpoint_pool, &checkpoint_spa, FTAG); 7288 if (error != 0) { 7289 fatal("Tried to open pool \"%s\" but spa_open() failed with " 7290 "error %d\n", checkpoint_pool, error); 7291 } 7292 7293 /* 7294 * Ensure that ranges in the checkpoint space maps of each vdev 7295 * are allocated according to the checkpointed state's metaslab 7296 * space maps. 7297 */ 7298 verify_checkpoint_vdev_spacemaps(checkpoint_spa, spa); 7299 7300 /* 7301 * Ensure that allocated ranges in the checkpoint's metaslab 7302 * space maps remain allocated in the metaslab space maps of 7303 * the current state. 7304 */ 7305 verify_checkpoint_ms_spacemaps(checkpoint_spa, spa); 7306 7307 /* 7308 * Once we are done, we get rid of the checkpointed state. 7309 */ 7310 spa_close(checkpoint_spa, FTAG); 7311 free(checkpoint_pool); 7312 } 7313 7314 static void 7315 dump_leftover_checkpoint_blocks(spa_t *spa) 7316 { 7317 vdev_t *rvd = spa->spa_root_vdev; 7318 7319 for (uint64_t i = 0; i < rvd->vdev_children; i++) { 7320 vdev_t *vd = rvd->vdev_child[i]; 7321 7322 space_map_t *checkpoint_sm = NULL; 7323 uint64_t checkpoint_sm_obj; 7324 7325 if (vd->vdev_top_zap == 0) 7326 continue; 7327 7328 if (zap_contains(spa_meta_objset(spa), vd->vdev_top_zap, 7329 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0) 7330 continue; 7331 7332 VERIFY0(zap_lookup(spa_meta_objset(spa), vd->vdev_top_zap, 7333 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, 7334 sizeof (uint64_t), 1, &checkpoint_sm_obj)); 7335 7336 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(spa), 7337 checkpoint_sm_obj, 0, vd->vdev_asize, vd->vdev_ashift)); 7338 dump_spacemap(spa->spa_meta_objset, checkpoint_sm); 7339 space_map_close(checkpoint_sm); 7340 } 7341 } 7342 7343 static int 7344 verify_checkpoint(spa_t *spa) 7345 { 7346 uberblock_t checkpoint; 7347 int error; 7348 7349 if (!spa_feature_is_active(spa, SPA_FEATURE_POOL_CHECKPOINT)) 7350 return (0); 7351 7352 error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, 7353 DMU_POOL_ZPOOL_CHECKPOINT, sizeof (uint64_t), 7354 sizeof (uberblock_t) / sizeof (uint64_t), &checkpoint); 7355 7356 if (error == ENOENT && !dump_opt['L']) { 7357 /* 7358 * If the feature is active but the uberblock is missing 7359 * then we must be in the middle of discarding the 7360 * checkpoint. 7361 */ 7362 (void) printf("\nPartially discarded checkpoint " 7363 "state found:\n"); 7364 if (dump_opt['m'] > 3) 7365 dump_leftover_checkpoint_blocks(spa); 7366 return (0); 7367 } else if (error != 0) { 7368 (void) printf("lookup error %d when looking for " 7369 "checkpointed uberblock in MOS\n", error); 7370 return (error); 7371 } 7372 dump_uberblock(&checkpoint, "\nCheckpointed uberblock found:\n", "\n"); 7373 7374 if (checkpoint.ub_checkpoint_txg == 0) { 7375 (void) printf("\nub_checkpoint_txg not set in checkpointed " 7376 "uberblock\n"); 7377 error = 3; 7378 } 7379 7380 if (error == 0 && !dump_opt['L']) 7381 verify_checkpoint_blocks(spa); 7382 7383 return (error); 7384 } 7385 7386 static void 7387 mos_leaks_cb(void *arg, uint64_t start, uint64_t size) 7388 { 7389 (void) arg; 7390 for (uint64_t i = start; i < size; i++) { 7391 (void) printf("MOS object %llu referenced but not allocated\n", 7392 (u_longlong_t)i); 7393 } 7394 } 7395 7396 static void 7397 mos_obj_refd(uint64_t obj) 7398 { 7399 if (obj != 0 && mos_refd_objs != NULL) 7400 range_tree_add(mos_refd_objs, obj, 1); 7401 } 7402 7403 /* 7404 * Call on a MOS object that may already have been referenced. 7405 */ 7406 static void 7407 mos_obj_refd_multiple(uint64_t obj) 7408 { 7409 if (obj != 0 && mos_refd_objs != NULL && 7410 !range_tree_contains(mos_refd_objs, obj, 1)) 7411 range_tree_add(mos_refd_objs, obj, 1); 7412 } 7413 7414 static void 7415 mos_leak_vdev_top_zap(vdev_t *vd) 7416 { 7417 uint64_t ms_flush_data_obj; 7418 int error = zap_lookup(spa_meta_objset(vd->vdev_spa), 7419 vd->vdev_top_zap, VDEV_TOP_ZAP_MS_UNFLUSHED_PHYS_TXGS, 7420 sizeof (ms_flush_data_obj), 1, &ms_flush_data_obj); 7421 if (error == ENOENT) 7422 return; 7423 ASSERT0(error); 7424 7425 mos_obj_refd(ms_flush_data_obj); 7426 } 7427 7428 static void 7429 mos_leak_vdev(vdev_t *vd) 7430 { 7431 mos_obj_refd(vd->vdev_dtl_object); 7432 mos_obj_refd(vd->vdev_ms_array); 7433 mos_obj_refd(vd->vdev_indirect_config.vic_births_object); 7434 mos_obj_refd(vd->vdev_indirect_config.vic_mapping_object); 7435 mos_obj_refd(vd->vdev_leaf_zap); 7436 if (vd->vdev_checkpoint_sm != NULL) 7437 mos_obj_refd(vd->vdev_checkpoint_sm->sm_object); 7438 if (vd->vdev_indirect_mapping != NULL) { 7439 mos_obj_refd(vd->vdev_indirect_mapping-> 7440 vim_phys->vimp_counts_object); 7441 } 7442 if (vd->vdev_obsolete_sm != NULL) 7443 mos_obj_refd(vd->vdev_obsolete_sm->sm_object); 7444 7445 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 7446 metaslab_t *ms = vd->vdev_ms[m]; 7447 mos_obj_refd(space_map_object(ms->ms_sm)); 7448 } 7449 7450 if (vd->vdev_top_zap != 0) { 7451 mos_obj_refd(vd->vdev_top_zap); 7452 mos_leak_vdev_top_zap(vd); 7453 } 7454 7455 for (uint64_t c = 0; c < vd->vdev_children; c++) { 7456 mos_leak_vdev(vd->vdev_child[c]); 7457 } 7458 } 7459 7460 static void 7461 mos_leak_log_spacemaps(spa_t *spa) 7462 { 7463 uint64_t spacemap_zap; 7464 int error = zap_lookup(spa_meta_objset(spa), 7465 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_LOG_SPACEMAP_ZAP, 7466 sizeof (spacemap_zap), 1, &spacemap_zap); 7467 if (error == ENOENT) 7468 return; 7469 ASSERT0(error); 7470 7471 mos_obj_refd(spacemap_zap); 7472 for (spa_log_sm_t *sls = avl_first(&spa->spa_sm_logs_by_txg); 7473 sls; sls = AVL_NEXT(&spa->spa_sm_logs_by_txg, sls)) 7474 mos_obj_refd(sls->sls_sm_obj); 7475 } 7476 7477 static int 7478 dump_mos_leaks(spa_t *spa) 7479 { 7480 int rv = 0; 7481 objset_t *mos = spa->spa_meta_objset; 7482 dsl_pool_t *dp = spa->spa_dsl_pool; 7483 7484 /* Visit and mark all referenced objects in the MOS */ 7485 7486 mos_obj_refd(DMU_POOL_DIRECTORY_OBJECT); 7487 mos_obj_refd(spa->spa_pool_props_object); 7488 mos_obj_refd(spa->spa_config_object); 7489 mos_obj_refd(spa->spa_ddt_stat_object); 7490 mos_obj_refd(spa->spa_feat_desc_obj); 7491 mos_obj_refd(spa->spa_feat_enabled_txg_obj); 7492 mos_obj_refd(spa->spa_feat_for_read_obj); 7493 mos_obj_refd(spa->spa_feat_for_write_obj); 7494 mos_obj_refd(spa->spa_history); 7495 mos_obj_refd(spa->spa_errlog_last); 7496 mos_obj_refd(spa->spa_errlog_scrub); 7497 mos_obj_refd(spa->spa_all_vdev_zaps); 7498 mos_obj_refd(spa->spa_dsl_pool->dp_bptree_obj); 7499 mos_obj_refd(spa->spa_dsl_pool->dp_tmp_userrefs_obj); 7500 mos_obj_refd(spa->spa_dsl_pool->dp_scan->scn_phys.scn_queue_obj); 7501 bpobj_count_refd(&spa->spa_deferred_bpobj); 7502 mos_obj_refd(dp->dp_empty_bpobj); 7503 bpobj_count_refd(&dp->dp_obsolete_bpobj); 7504 bpobj_count_refd(&dp->dp_free_bpobj); 7505 mos_obj_refd(spa->spa_l2cache.sav_object); 7506 mos_obj_refd(spa->spa_spares.sav_object); 7507 7508 if (spa->spa_syncing_log_sm != NULL) 7509 mos_obj_refd(spa->spa_syncing_log_sm->sm_object); 7510 mos_leak_log_spacemaps(spa); 7511 7512 mos_obj_refd(spa->spa_condensing_indirect_phys. 7513 scip_next_mapping_object); 7514 mos_obj_refd(spa->spa_condensing_indirect_phys. 7515 scip_prev_obsolete_sm_object); 7516 if (spa->spa_condensing_indirect_phys.scip_next_mapping_object != 0) { 7517 vdev_indirect_mapping_t *vim = 7518 vdev_indirect_mapping_open(mos, 7519 spa->spa_condensing_indirect_phys.scip_next_mapping_object); 7520 mos_obj_refd(vim->vim_phys->vimp_counts_object); 7521 vdev_indirect_mapping_close(vim); 7522 } 7523 deleted_livelists_dump_mos(spa); 7524 7525 if (dp->dp_origin_snap != NULL) { 7526 dsl_dataset_t *ds; 7527 7528 dsl_pool_config_enter(dp, FTAG); 7529 VERIFY0(dsl_dataset_hold_obj(dp, 7530 dsl_dataset_phys(dp->dp_origin_snap)->ds_next_snap_obj, 7531 FTAG, &ds)); 7532 count_ds_mos_objects(ds); 7533 dump_blkptr_list(&ds->ds_deadlist, "Deadlist"); 7534 dsl_dataset_rele(ds, FTAG); 7535 dsl_pool_config_exit(dp, FTAG); 7536 7537 count_ds_mos_objects(dp->dp_origin_snap); 7538 dump_blkptr_list(&dp->dp_origin_snap->ds_deadlist, "Deadlist"); 7539 } 7540 count_dir_mos_objects(dp->dp_mos_dir); 7541 if (dp->dp_free_dir != NULL) 7542 count_dir_mos_objects(dp->dp_free_dir); 7543 if (dp->dp_leak_dir != NULL) 7544 count_dir_mos_objects(dp->dp_leak_dir); 7545 7546 mos_leak_vdev(spa->spa_root_vdev); 7547 7548 for (uint64_t class = 0; class < DDT_CLASSES; class++) { 7549 for (uint64_t type = 0; type < DDT_TYPES; type++) { 7550 for (uint64_t cksum = 0; 7551 cksum < ZIO_CHECKSUM_FUNCTIONS; cksum++) { 7552 ddt_t *ddt = spa->spa_ddt[cksum]; 7553 mos_obj_refd(ddt->ddt_object[type][class]); 7554 } 7555 } 7556 } 7557 7558 /* 7559 * Visit all allocated objects and make sure they are referenced. 7560 */ 7561 uint64_t object = 0; 7562 while (dmu_object_next(mos, &object, B_FALSE, 0) == 0) { 7563 if (range_tree_contains(mos_refd_objs, object, 1)) { 7564 range_tree_remove(mos_refd_objs, object, 1); 7565 } else { 7566 dmu_object_info_t doi; 7567 const char *name; 7568 dmu_object_info(mos, object, &doi); 7569 if (doi.doi_type & DMU_OT_NEWTYPE) { 7570 dmu_object_byteswap_t bswap = 7571 DMU_OT_BYTESWAP(doi.doi_type); 7572 name = dmu_ot_byteswap[bswap].ob_name; 7573 } else { 7574 name = dmu_ot[doi.doi_type].ot_name; 7575 } 7576 7577 (void) printf("MOS object %llu (%s) leaked\n", 7578 (u_longlong_t)object, name); 7579 rv = 2; 7580 } 7581 } 7582 (void) range_tree_walk(mos_refd_objs, mos_leaks_cb, NULL); 7583 if (!range_tree_is_empty(mos_refd_objs)) 7584 rv = 2; 7585 range_tree_vacate(mos_refd_objs, NULL, NULL); 7586 range_tree_destroy(mos_refd_objs); 7587 return (rv); 7588 } 7589 7590 typedef struct log_sm_obsolete_stats_arg { 7591 uint64_t lsos_current_txg; 7592 7593 uint64_t lsos_total_entries; 7594 uint64_t lsos_valid_entries; 7595 7596 uint64_t lsos_sm_entries; 7597 uint64_t lsos_valid_sm_entries; 7598 } log_sm_obsolete_stats_arg_t; 7599 7600 static int 7601 log_spacemap_obsolete_stats_cb(spa_t *spa, space_map_entry_t *sme, 7602 uint64_t txg, void *arg) 7603 { 7604 log_sm_obsolete_stats_arg_t *lsos = arg; 7605 7606 uint64_t offset = sme->sme_offset; 7607 uint64_t vdev_id = sme->sme_vdev; 7608 7609 if (lsos->lsos_current_txg == 0) { 7610 /* this is the first log */ 7611 lsos->lsos_current_txg = txg; 7612 } else if (lsos->lsos_current_txg < txg) { 7613 /* we just changed log - print stats and reset */ 7614 (void) printf("%-8llu valid entries out of %-8llu - txg %llu\n", 7615 (u_longlong_t)lsos->lsos_valid_sm_entries, 7616 (u_longlong_t)lsos->lsos_sm_entries, 7617 (u_longlong_t)lsos->lsos_current_txg); 7618 lsos->lsos_valid_sm_entries = 0; 7619 lsos->lsos_sm_entries = 0; 7620 lsos->lsos_current_txg = txg; 7621 } 7622 ASSERT3U(lsos->lsos_current_txg, ==, txg); 7623 7624 lsos->lsos_sm_entries++; 7625 lsos->lsos_total_entries++; 7626 7627 vdev_t *vd = vdev_lookup_top(spa, vdev_id); 7628 if (!vdev_is_concrete(vd)) 7629 return (0); 7630 7631 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 7632 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE); 7633 7634 if (txg < metaslab_unflushed_txg(ms)) 7635 return (0); 7636 lsos->lsos_valid_sm_entries++; 7637 lsos->lsos_valid_entries++; 7638 return (0); 7639 } 7640 7641 static void 7642 dump_log_spacemap_obsolete_stats(spa_t *spa) 7643 { 7644 if (!spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP)) 7645 return; 7646 7647 log_sm_obsolete_stats_arg_t lsos; 7648 bzero(&lsos, sizeof (lsos)); 7649 7650 (void) printf("Log Space Map Obsolete Entry Statistics:\n"); 7651 7652 iterate_through_spacemap_logs(spa, 7653 log_spacemap_obsolete_stats_cb, &lsos); 7654 7655 /* print stats for latest log */ 7656 (void) printf("%-8llu valid entries out of %-8llu - txg %llu\n", 7657 (u_longlong_t)lsos.lsos_valid_sm_entries, 7658 (u_longlong_t)lsos.lsos_sm_entries, 7659 (u_longlong_t)lsos.lsos_current_txg); 7660 7661 (void) printf("%-8llu valid entries out of %-8llu - total\n\n", 7662 (u_longlong_t)lsos.lsos_valid_entries, 7663 (u_longlong_t)lsos.lsos_total_entries); 7664 } 7665 7666 static void 7667 dump_zpool(spa_t *spa) 7668 { 7669 dsl_pool_t *dp = spa_get_dsl(spa); 7670 int rc = 0; 7671 7672 if (dump_opt['y']) { 7673 livelist_metaslab_validate(spa); 7674 } 7675 7676 if (dump_opt['S']) { 7677 dump_simulated_ddt(spa); 7678 return; 7679 } 7680 7681 if (!dump_opt['e'] && dump_opt['C'] > 1) { 7682 (void) printf("\nCached configuration:\n"); 7683 dump_nvlist(spa->spa_config, 8); 7684 } 7685 7686 if (dump_opt['C']) 7687 dump_config(spa); 7688 7689 if (dump_opt['u']) 7690 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 7691 7692 if (dump_opt['D']) 7693 dump_all_ddts(spa); 7694 7695 if (dump_opt['d'] > 2 || dump_opt['m']) 7696 dump_metaslabs(spa); 7697 if (dump_opt['M']) 7698 dump_metaslab_groups(spa, dump_opt['M'] > 1); 7699 if (dump_opt['d'] > 2 || dump_opt['m']) { 7700 dump_log_spacemaps(spa); 7701 dump_log_spacemap_obsolete_stats(spa); 7702 } 7703 7704 if (dump_opt['d'] || dump_opt['i']) { 7705 spa_feature_t f; 7706 mos_refd_objs = range_tree_create(NULL, RANGE_SEG64, NULL, 0, 7707 0); 7708 dump_objset(dp->dp_meta_objset); 7709 7710 if (dump_opt['d'] >= 3) { 7711 dsl_pool_t *dp = spa->spa_dsl_pool; 7712 dump_full_bpobj(&spa->spa_deferred_bpobj, 7713 "Deferred frees", 0); 7714 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 7715 dump_full_bpobj(&dp->dp_free_bpobj, 7716 "Pool snapshot frees", 0); 7717 } 7718 if (bpobj_is_open(&dp->dp_obsolete_bpobj)) { 7719 ASSERT(spa_feature_is_enabled(spa, 7720 SPA_FEATURE_DEVICE_REMOVAL)); 7721 dump_full_bpobj(&dp->dp_obsolete_bpobj, 7722 "Pool obsolete blocks", 0); 7723 } 7724 7725 if (spa_feature_is_active(spa, 7726 SPA_FEATURE_ASYNC_DESTROY)) { 7727 dump_bptree(spa->spa_meta_objset, 7728 dp->dp_bptree_obj, 7729 "Pool dataset frees"); 7730 } 7731 dump_dtl(spa->spa_root_vdev, 0); 7732 } 7733 7734 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) 7735 global_feature_count[f] = UINT64_MAX; 7736 global_feature_count[SPA_FEATURE_REDACTION_BOOKMARKS] = 0; 7737 global_feature_count[SPA_FEATURE_BOOKMARK_WRITTEN] = 0; 7738 global_feature_count[SPA_FEATURE_LIVELIST] = 0; 7739 7740 (void) dmu_objset_find(spa_name(spa), dump_one_objset, 7741 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 7742 7743 if (rc == 0 && !dump_opt['L']) 7744 rc = dump_mos_leaks(spa); 7745 7746 for (f = 0; f < SPA_FEATURES; f++) { 7747 uint64_t refcount; 7748 7749 uint64_t *arr; 7750 if (!(spa_feature_table[f].fi_flags & 7751 ZFEATURE_FLAG_PER_DATASET)) { 7752 if (global_feature_count[f] == UINT64_MAX) 7753 continue; 7754 if (!spa_feature_is_enabled(spa, f)) { 7755 ASSERT0(global_feature_count[f]); 7756 continue; 7757 } 7758 arr = global_feature_count; 7759 } else { 7760 if (!spa_feature_is_enabled(spa, f)) { 7761 ASSERT0(dataset_feature_count[f]); 7762 continue; 7763 } 7764 arr = dataset_feature_count; 7765 } 7766 if (feature_get_refcount(spa, &spa_feature_table[f], 7767 &refcount) == ENOTSUP) 7768 continue; 7769 if (arr[f] != refcount) { 7770 (void) printf("%s feature refcount mismatch: " 7771 "%lld consumers != %lld refcount\n", 7772 spa_feature_table[f].fi_uname, 7773 (longlong_t)arr[f], (longlong_t)refcount); 7774 rc = 2; 7775 } else { 7776 (void) printf("Verified %s feature refcount " 7777 "of %llu is correct\n", 7778 spa_feature_table[f].fi_uname, 7779 (longlong_t)refcount); 7780 } 7781 } 7782 7783 if (rc == 0) 7784 rc = verify_device_removal_feature_counts(spa); 7785 } 7786 7787 if (rc == 0 && (dump_opt['b'] || dump_opt['c'])) 7788 rc = dump_block_stats(spa); 7789 7790 if (rc == 0) 7791 rc = verify_spacemap_refcounts(spa); 7792 7793 if (dump_opt['s']) 7794 show_pool_stats(spa); 7795 7796 if (dump_opt['h']) 7797 dump_history(spa); 7798 7799 if (rc == 0) 7800 rc = verify_checkpoint(spa); 7801 7802 if (rc != 0) { 7803 dump_debug_buffer(); 7804 exit(rc); 7805 } 7806 } 7807 7808 #define ZDB_FLAG_CHECKSUM 0x0001 7809 #define ZDB_FLAG_DECOMPRESS 0x0002 7810 #define ZDB_FLAG_BSWAP 0x0004 7811 #define ZDB_FLAG_GBH 0x0008 7812 #define ZDB_FLAG_INDIRECT 0x0010 7813 #define ZDB_FLAG_RAW 0x0020 7814 #define ZDB_FLAG_PRINT_BLKPTR 0x0040 7815 #define ZDB_FLAG_VERBOSE 0x0080 7816 7817 static int flagbits[256]; 7818 static char flagbitstr[16]; 7819 7820 static void 7821 zdb_print_blkptr(const blkptr_t *bp, int flags) 7822 { 7823 char blkbuf[BP_SPRINTF_LEN]; 7824 7825 if (flags & ZDB_FLAG_BSWAP) 7826 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 7827 7828 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 7829 (void) printf("%s\n", blkbuf); 7830 } 7831 7832 static void 7833 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 7834 { 7835 int i; 7836 7837 for (i = 0; i < nbps; i++) 7838 zdb_print_blkptr(&bp[i], flags); 7839 } 7840 7841 static void 7842 zdb_dump_gbh(void *buf, int flags) 7843 { 7844 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 7845 } 7846 7847 static void 7848 zdb_dump_block_raw(void *buf, uint64_t size, int flags) 7849 { 7850 if (flags & ZDB_FLAG_BSWAP) 7851 byteswap_uint64_array(buf, size); 7852 VERIFY(write(fileno(stdout), buf, size) == size); 7853 } 7854 7855 static void 7856 zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 7857 { 7858 uint64_t *d = (uint64_t *)buf; 7859 unsigned nwords = size / sizeof (uint64_t); 7860 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 7861 unsigned i, j; 7862 const char *hdr; 7863 char *c; 7864 7865 7866 if (do_bswap) 7867 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 7868 else 7869 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 7870 7871 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 7872 7873 #ifdef _LITTLE_ENDIAN 7874 /* correct the endianness */ 7875 do_bswap = !do_bswap; 7876 #endif 7877 for (i = 0; i < nwords; i += 2) { 7878 (void) printf("%06llx: %016llx %016llx ", 7879 (u_longlong_t)(i * sizeof (uint64_t)), 7880 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 7881 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 7882 7883 c = (char *)&d[i]; 7884 for (j = 0; j < 2 * sizeof (uint64_t); j++) 7885 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 7886 (void) printf("\n"); 7887 } 7888 } 7889 7890 /* 7891 * There are two acceptable formats: 7892 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 7893 * child[.child]* - For example: 0.1.1 7894 * 7895 * The second form can be used to specify arbitrary vdevs anywhere 7896 * in the hierarchy. For example, in a pool with a mirror of 7897 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 7898 */ 7899 static vdev_t * 7900 zdb_vdev_lookup(vdev_t *vdev, const char *path) 7901 { 7902 char *s, *p, *q; 7903 unsigned i; 7904 7905 if (vdev == NULL) 7906 return (NULL); 7907 7908 /* First, assume the x.x.x.x format */ 7909 i = strtoul(path, &s, 10); 7910 if (s == path || (s && *s != '.' && *s != '\0')) 7911 goto name; 7912 if (i >= vdev->vdev_children) 7913 return (NULL); 7914 7915 vdev = vdev->vdev_child[i]; 7916 if (s && *s == '\0') 7917 return (vdev); 7918 return (zdb_vdev_lookup(vdev, s+1)); 7919 7920 name: 7921 for (i = 0; i < vdev->vdev_children; i++) { 7922 vdev_t *vc = vdev->vdev_child[i]; 7923 7924 if (vc->vdev_path == NULL) { 7925 vc = zdb_vdev_lookup(vc, path); 7926 if (vc == NULL) 7927 continue; 7928 else 7929 return (vc); 7930 } 7931 7932 p = strrchr(vc->vdev_path, '/'); 7933 p = p ? p + 1 : vc->vdev_path; 7934 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 7935 7936 if (strcmp(vc->vdev_path, path) == 0) 7937 return (vc); 7938 if (strcmp(p, path) == 0) 7939 return (vc); 7940 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 7941 return (vc); 7942 } 7943 7944 return (NULL); 7945 } 7946 7947 static int 7948 name_from_objset_id(spa_t *spa, uint64_t objset_id, char *outstr) 7949 { 7950 dsl_dataset_t *ds; 7951 7952 dsl_pool_config_enter(spa->spa_dsl_pool, FTAG); 7953 int error = dsl_dataset_hold_obj(spa->spa_dsl_pool, objset_id, 7954 NULL, &ds); 7955 if (error != 0) { 7956 (void) fprintf(stderr, "failed to hold objset %llu: %s\n", 7957 (u_longlong_t)objset_id, strerror(error)); 7958 dsl_pool_config_exit(spa->spa_dsl_pool, FTAG); 7959 return (error); 7960 } 7961 dsl_dataset_name(ds, outstr); 7962 dsl_dataset_rele(ds, NULL); 7963 dsl_pool_config_exit(spa->spa_dsl_pool, FTAG); 7964 return (0); 7965 } 7966 7967 static boolean_t 7968 zdb_parse_block_sizes(char *sizes, uint64_t *lsize, uint64_t *psize) 7969 { 7970 char *s0, *s1, *tmp = NULL; 7971 7972 if (sizes == NULL) 7973 return (B_FALSE); 7974 7975 s0 = strtok_r(sizes, "/", &tmp); 7976 if (s0 == NULL) 7977 return (B_FALSE); 7978 s1 = strtok_r(NULL, "/", &tmp); 7979 *lsize = strtoull(s0, NULL, 16); 7980 *psize = s1 ? strtoull(s1, NULL, 16) : *lsize; 7981 return (*lsize >= *psize && *psize > 0); 7982 } 7983 7984 #define ZIO_COMPRESS_MASK(alg) (1ULL << (ZIO_COMPRESS_##alg)) 7985 7986 static boolean_t 7987 zdb_decompress_block(abd_t *pabd, void *buf, void *lbuf, uint64_t lsize, 7988 uint64_t psize, int flags) 7989 { 7990 (void) buf; 7991 boolean_t exceeded = B_FALSE; 7992 /* 7993 * We don't know how the data was compressed, so just try 7994 * every decompress function at every inflated blocksize. 7995 */ 7996 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 7997 int cfuncs[ZIO_COMPRESS_FUNCTIONS] = { 0 }; 7998 int *cfuncp = cfuncs; 7999 uint64_t maxlsize = SPA_MAXBLOCKSIZE; 8000 uint64_t mask = ZIO_COMPRESS_MASK(ON) | ZIO_COMPRESS_MASK(OFF) | 8001 ZIO_COMPRESS_MASK(INHERIT) | ZIO_COMPRESS_MASK(EMPTY) | 8002 (getenv("ZDB_NO_ZLE") ? ZIO_COMPRESS_MASK(ZLE) : 0); 8003 *cfuncp++ = ZIO_COMPRESS_LZ4; 8004 *cfuncp++ = ZIO_COMPRESS_LZJB; 8005 mask |= ZIO_COMPRESS_MASK(LZ4) | ZIO_COMPRESS_MASK(LZJB); 8006 for (int c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) 8007 if (((1ULL << c) & mask) == 0) 8008 *cfuncp++ = c; 8009 8010 /* 8011 * On the one hand, with SPA_MAXBLOCKSIZE at 16MB, this 8012 * could take a while and we should let the user know 8013 * we are not stuck. On the other hand, printing progress 8014 * info gets old after a while. User can specify 'v' flag 8015 * to see the progression. 8016 */ 8017 if (lsize == psize) 8018 lsize += SPA_MINBLOCKSIZE; 8019 else 8020 maxlsize = lsize; 8021 for (; lsize <= maxlsize; lsize += SPA_MINBLOCKSIZE) { 8022 for (cfuncp = cfuncs; *cfuncp; cfuncp++) { 8023 if (flags & ZDB_FLAG_VERBOSE) { 8024 (void) fprintf(stderr, 8025 "Trying %05llx -> %05llx (%s)\n", 8026 (u_longlong_t)psize, 8027 (u_longlong_t)lsize, 8028 zio_compress_table[*cfuncp].\ 8029 ci_name); 8030 } 8031 8032 /* 8033 * We randomize lbuf2, and decompress to both 8034 * lbuf and lbuf2. This way, we will know if 8035 * decompression fill exactly to lsize. 8036 */ 8037 VERIFY0(random_get_pseudo_bytes(lbuf2, lsize)); 8038 8039 if (zio_decompress_data(*cfuncp, pabd, 8040 lbuf, psize, lsize, NULL) == 0 && 8041 zio_decompress_data(*cfuncp, pabd, 8042 lbuf2, psize, lsize, NULL) == 0 && 8043 bcmp(lbuf, lbuf2, lsize) == 0) 8044 break; 8045 } 8046 if (*cfuncp != 0) 8047 break; 8048 } 8049 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 8050 8051 if (lsize > maxlsize) { 8052 exceeded = B_TRUE; 8053 } 8054 if (*cfuncp == ZIO_COMPRESS_ZLE) { 8055 printf("\nZLE decompression was selected. If you " 8056 "suspect the results are wrong,\ntry avoiding ZLE " 8057 "by setting and exporting ZDB_NO_ZLE=\"true\"\n"); 8058 } 8059 8060 return (exceeded); 8061 } 8062 8063 /* 8064 * Read a block from a pool and print it out. The syntax of the 8065 * block descriptor is: 8066 * 8067 * pool:vdev_specifier:offset:[lsize/]psize[:flags] 8068 * 8069 * pool - The name of the pool you wish to read from 8070 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 8071 * offset - offset, in hex, in bytes 8072 * size - Amount of data to read, in hex, in bytes 8073 * flags - A string of characters specifying options 8074 * b: Decode a blkptr at given offset within block 8075 * c: Calculate and display checksums 8076 * d: Decompress data before dumping 8077 * e: Byteswap data before dumping 8078 * g: Display data as a gang block header 8079 * i: Display as an indirect block 8080 * r: Dump raw data to stdout 8081 * v: Verbose 8082 * 8083 */ 8084 static void 8085 zdb_read_block(char *thing, spa_t *spa) 8086 { 8087 blkptr_t blk, *bp = &blk; 8088 dva_t *dva = bp->blk_dva; 8089 int flags = 0; 8090 uint64_t offset = 0, psize = 0, lsize = 0, blkptr_offset = 0; 8091 zio_t *zio; 8092 vdev_t *vd; 8093 abd_t *pabd; 8094 void *lbuf, *buf; 8095 char *s, *p, *dup, *vdev, *flagstr, *sizes, *tmp = NULL; 8096 int i, error; 8097 boolean_t borrowed = B_FALSE, found = B_FALSE; 8098 8099 dup = strdup(thing); 8100 s = strtok_r(dup, ":", &tmp); 8101 vdev = s ? s : ""; 8102 s = strtok_r(NULL, ":", &tmp); 8103 offset = strtoull(s ? s : "", NULL, 16); 8104 sizes = strtok_r(NULL, ":", &tmp); 8105 s = strtok_r(NULL, ":", &tmp); 8106 flagstr = strdup(s ? s : ""); 8107 8108 s = NULL; 8109 tmp = NULL; 8110 if (!zdb_parse_block_sizes(sizes, &lsize, &psize)) 8111 s = "invalid size(s)"; 8112 if (!IS_P2ALIGNED(psize, DEV_BSIZE) || !IS_P2ALIGNED(lsize, DEV_BSIZE)) 8113 s = "size must be a multiple of sector size"; 8114 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 8115 s = "offset must be a multiple of sector size"; 8116 if (s) { 8117 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 8118 goto done; 8119 } 8120 8121 for (s = strtok_r(flagstr, ":", &tmp); 8122 s != NULL; 8123 s = strtok_r(NULL, ":", &tmp)) { 8124 for (i = 0; i < strlen(flagstr); i++) { 8125 int bit = flagbits[(uchar_t)flagstr[i]]; 8126 8127 if (bit == 0) { 8128 (void) printf("***Ignoring flag: %c\n", 8129 (uchar_t)flagstr[i]); 8130 continue; 8131 } 8132 found = B_TRUE; 8133 flags |= bit; 8134 8135 p = &flagstr[i + 1]; 8136 if (*p != ':' && *p != '\0') { 8137 int j = 0, nextbit = flagbits[(uchar_t)*p]; 8138 char *end, offstr[8] = { 0 }; 8139 if ((bit == ZDB_FLAG_PRINT_BLKPTR) && 8140 (nextbit == 0)) { 8141 /* look ahead to isolate the offset */ 8142 while (nextbit == 0 && 8143 strchr(flagbitstr, *p) == NULL) { 8144 offstr[j] = *p; 8145 j++; 8146 if (i + j > strlen(flagstr)) 8147 break; 8148 p++; 8149 nextbit = flagbits[(uchar_t)*p]; 8150 } 8151 blkptr_offset = strtoull(offstr, &end, 8152 16); 8153 i += j; 8154 } else if (nextbit == 0) { 8155 (void) printf("***Ignoring flag arg:" 8156 " '%c'\n", (uchar_t)*p); 8157 } 8158 } 8159 } 8160 } 8161 if (blkptr_offset % sizeof (blkptr_t)) { 8162 printf("Block pointer offset 0x%llx " 8163 "must be divisible by 0x%x\n", 8164 (longlong_t)blkptr_offset, (int)sizeof (blkptr_t)); 8165 goto done; 8166 } 8167 if (found == B_FALSE && strlen(flagstr) > 0) { 8168 printf("Invalid flag arg: '%s'\n", flagstr); 8169 goto done; 8170 } 8171 8172 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 8173 if (vd == NULL) { 8174 (void) printf("***Invalid vdev: %s\n", vdev); 8175 free(dup); 8176 return; 8177 } else { 8178 if (vd->vdev_path) 8179 (void) fprintf(stderr, "Found vdev: %s\n", 8180 vd->vdev_path); 8181 else 8182 (void) fprintf(stderr, "Found vdev type: %s\n", 8183 vd->vdev_ops->vdev_op_type); 8184 } 8185 8186 pabd = abd_alloc_for_io(SPA_MAXBLOCKSIZE, B_FALSE); 8187 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 8188 8189 BP_ZERO(bp); 8190 8191 DVA_SET_VDEV(&dva[0], vd->vdev_id); 8192 DVA_SET_OFFSET(&dva[0], offset); 8193 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 8194 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 8195 8196 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 8197 8198 BP_SET_LSIZE(bp, lsize); 8199 BP_SET_PSIZE(bp, psize); 8200 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 8201 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 8202 BP_SET_TYPE(bp, DMU_OT_NONE); 8203 BP_SET_LEVEL(bp, 0); 8204 BP_SET_DEDUP(bp, 0); 8205 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 8206 8207 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 8208 zio = zio_root(spa, NULL, NULL, 0); 8209 8210 if (vd == vd->vdev_top) { 8211 /* 8212 * Treat this as a normal block read. 8213 */ 8214 zio_nowait(zio_read(zio, spa, bp, pabd, psize, NULL, NULL, 8215 ZIO_PRIORITY_SYNC_READ, 8216 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 8217 } else { 8218 /* 8219 * Treat this as a vdev child I/O. 8220 */ 8221 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pabd, 8222 psize, ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 8223 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_PROPAGATE | 8224 ZIO_FLAG_DONT_RETRY | ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW | 8225 ZIO_FLAG_OPTIONAL, NULL, NULL)); 8226 } 8227 8228 error = zio_wait(zio); 8229 spa_config_exit(spa, SCL_STATE, FTAG); 8230 8231 if (error) { 8232 (void) printf("Read of %s failed, error: %d\n", thing, error); 8233 goto out; 8234 } 8235 8236 uint64_t orig_lsize = lsize; 8237 buf = lbuf; 8238 if (flags & ZDB_FLAG_DECOMPRESS) { 8239 boolean_t failed = zdb_decompress_block(pabd, buf, lbuf, 8240 lsize, psize, flags); 8241 if (failed) { 8242 (void) printf("Decompress of %s failed\n", thing); 8243 goto out; 8244 } 8245 } else { 8246 buf = abd_borrow_buf_copy(pabd, lsize); 8247 borrowed = B_TRUE; 8248 } 8249 /* 8250 * Try to detect invalid block pointer. If invalid, try 8251 * decompressing. 8252 */ 8253 if ((flags & ZDB_FLAG_PRINT_BLKPTR || flags & ZDB_FLAG_INDIRECT) && 8254 !(flags & ZDB_FLAG_DECOMPRESS)) { 8255 const blkptr_t *b = (const blkptr_t *)(void *) 8256 ((uintptr_t)buf + (uintptr_t)blkptr_offset); 8257 if (zfs_blkptr_verify(spa, b, B_FALSE, BLK_VERIFY_ONLY) == 8258 B_FALSE) { 8259 abd_return_buf_copy(pabd, buf, lsize); 8260 borrowed = B_FALSE; 8261 buf = lbuf; 8262 boolean_t failed = zdb_decompress_block(pabd, buf, 8263 lbuf, lsize, psize, flags); 8264 b = (const blkptr_t *)(void *) 8265 ((uintptr_t)buf + (uintptr_t)blkptr_offset); 8266 if (failed || zfs_blkptr_verify(spa, b, B_FALSE, 8267 BLK_VERIFY_LOG) == B_FALSE) { 8268 printf("invalid block pointer at this DVA\n"); 8269 goto out; 8270 } 8271 } 8272 } 8273 8274 if (flags & ZDB_FLAG_PRINT_BLKPTR) 8275 zdb_print_blkptr((blkptr_t *)(void *) 8276 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 8277 else if (flags & ZDB_FLAG_RAW) 8278 zdb_dump_block_raw(buf, lsize, flags); 8279 else if (flags & ZDB_FLAG_INDIRECT) 8280 zdb_dump_indirect((blkptr_t *)buf, 8281 orig_lsize / sizeof (blkptr_t), flags); 8282 else if (flags & ZDB_FLAG_GBH) 8283 zdb_dump_gbh(buf, flags); 8284 else 8285 zdb_dump_block(thing, buf, lsize, flags); 8286 8287 /* 8288 * If :c was specified, iterate through the checksum table to 8289 * calculate and display each checksum for our specified 8290 * DVA and length. 8291 */ 8292 if ((flags & ZDB_FLAG_CHECKSUM) && !(flags & ZDB_FLAG_RAW) && 8293 !(flags & ZDB_FLAG_GBH)) { 8294 zio_t *czio; 8295 (void) printf("\n"); 8296 for (enum zio_checksum ck = ZIO_CHECKSUM_LABEL; 8297 ck < ZIO_CHECKSUM_FUNCTIONS; ck++) { 8298 8299 if ((zio_checksum_table[ck].ci_flags & 8300 ZCHECKSUM_FLAG_EMBEDDED) || 8301 ck == ZIO_CHECKSUM_NOPARITY) { 8302 continue; 8303 } 8304 BP_SET_CHECKSUM(bp, ck); 8305 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 8306 czio = zio_root(spa, NULL, NULL, ZIO_FLAG_CANFAIL); 8307 czio->io_bp = bp; 8308 8309 if (vd == vd->vdev_top) { 8310 zio_nowait(zio_read(czio, spa, bp, pabd, psize, 8311 NULL, NULL, 8312 ZIO_PRIORITY_SYNC_READ, 8313 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW | 8314 ZIO_FLAG_DONT_RETRY, NULL)); 8315 } else { 8316 zio_nowait(zio_vdev_child_io(czio, bp, vd, 8317 offset, pabd, psize, ZIO_TYPE_READ, 8318 ZIO_PRIORITY_SYNC_READ, 8319 ZIO_FLAG_DONT_CACHE | 8320 ZIO_FLAG_DONT_PROPAGATE | 8321 ZIO_FLAG_DONT_RETRY | 8322 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW | 8323 ZIO_FLAG_SPECULATIVE | 8324 ZIO_FLAG_OPTIONAL, NULL, NULL)); 8325 } 8326 error = zio_wait(czio); 8327 if (error == 0 || error == ECKSUM) { 8328 zio_t *ck_zio = zio_root(spa, NULL, NULL, 0); 8329 ck_zio->io_offset = 8330 DVA_GET_OFFSET(&bp->blk_dva[0]); 8331 ck_zio->io_bp = bp; 8332 zio_checksum_compute(ck_zio, ck, pabd, lsize); 8333 printf("%12s\tcksum=%llx:%llx:%llx:%llx\n", 8334 zio_checksum_table[ck].ci_name, 8335 (u_longlong_t)bp->blk_cksum.zc_word[0], 8336 (u_longlong_t)bp->blk_cksum.zc_word[1], 8337 (u_longlong_t)bp->blk_cksum.zc_word[2], 8338 (u_longlong_t)bp->blk_cksum.zc_word[3]); 8339 zio_wait(ck_zio); 8340 } else { 8341 printf("error %d reading block\n", error); 8342 } 8343 spa_config_exit(spa, SCL_STATE, FTAG); 8344 } 8345 } 8346 8347 if (borrowed) 8348 abd_return_buf_copy(pabd, buf, lsize); 8349 8350 out: 8351 abd_free(pabd); 8352 umem_free(lbuf, SPA_MAXBLOCKSIZE); 8353 done: 8354 free(flagstr); 8355 free(dup); 8356 } 8357 8358 static void 8359 zdb_embedded_block(char *thing) 8360 { 8361 blkptr_t bp; 8362 unsigned long long *words = (void *)&bp; 8363 char *buf; 8364 int err; 8365 8366 bzero(&bp, sizeof (bp)); 8367 err = sscanf(thing, "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx:" 8368 "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx", 8369 words + 0, words + 1, words + 2, words + 3, 8370 words + 4, words + 5, words + 6, words + 7, 8371 words + 8, words + 9, words + 10, words + 11, 8372 words + 12, words + 13, words + 14, words + 15); 8373 if (err != 16) { 8374 (void) fprintf(stderr, "invalid input format\n"); 8375 exit(1); 8376 } 8377 ASSERT3U(BPE_GET_LSIZE(&bp), <=, SPA_MAXBLOCKSIZE); 8378 buf = malloc(SPA_MAXBLOCKSIZE); 8379 if (buf == NULL) { 8380 (void) fprintf(stderr, "out of memory\n"); 8381 exit(1); 8382 } 8383 err = decode_embedded_bp(&bp, buf, BPE_GET_LSIZE(&bp)); 8384 if (err != 0) { 8385 (void) fprintf(stderr, "decode failed: %u\n", err); 8386 exit(1); 8387 } 8388 zdb_dump_block_raw(buf, BPE_GET_LSIZE(&bp), 0); 8389 free(buf); 8390 } 8391 8392 /* check for valid hex or decimal numeric string */ 8393 static boolean_t 8394 zdb_numeric(char *str) 8395 { 8396 int i = 0; 8397 8398 if (strlen(str) == 0) 8399 return (B_FALSE); 8400 if (strncmp(str, "0x", 2) == 0 || strncmp(str, "0X", 2) == 0) 8401 i = 2; 8402 for (; i < strlen(str); i++) { 8403 if (!isxdigit(str[i])) 8404 return (B_FALSE); 8405 } 8406 return (B_TRUE); 8407 } 8408 8409 int 8410 main(int argc, char **argv) 8411 { 8412 int c; 8413 struct rlimit rl = { 1024, 1024 }; 8414 spa_t *spa = NULL; 8415 objset_t *os = NULL; 8416 int dump_all = 1; 8417 int verbose = 0; 8418 int error = 0; 8419 char **searchdirs = NULL; 8420 int nsearch = 0; 8421 char *target, *target_pool, dsname[ZFS_MAX_DATASET_NAME_LEN]; 8422 nvlist_t *policy = NULL; 8423 uint64_t max_txg = UINT64_MAX; 8424 int64_t objset_id = -1; 8425 uint64_t object; 8426 int flags = ZFS_IMPORT_MISSING_LOG; 8427 int rewind = ZPOOL_NEVER_REWIND; 8428 char *spa_config_path_env, *objset_str; 8429 boolean_t target_is_spa = B_TRUE, dataset_lookup = B_FALSE; 8430 nvlist_t *cfg = NULL; 8431 8432 (void) setrlimit(RLIMIT_NOFILE, &rl); 8433 (void) enable_extended_FILE_stdio(-1, -1); 8434 8435 dprintf_setup(&argc, argv); 8436 8437 /* 8438 * If there is an environment variable SPA_CONFIG_PATH it overrides 8439 * default spa_config_path setting. If -U flag is specified it will 8440 * override this environment variable settings once again. 8441 */ 8442 spa_config_path_env = getenv("SPA_CONFIG_PATH"); 8443 if (spa_config_path_env != NULL) 8444 spa_config_path = spa_config_path_env; 8445 8446 /* 8447 * For performance reasons, we set this tunable down. We do so before 8448 * the arg parsing section so that the user can override this value if 8449 * they choose. 8450 */ 8451 zfs_btree_verify_intensity = 3; 8452 8453 struct option long_options[] = { 8454 {"ignore-assertions", no_argument, NULL, 'A'}, 8455 {"block-stats", no_argument, NULL, 'b'}, 8456 {"checksum", no_argument, NULL, 'c'}, 8457 {"config", no_argument, NULL, 'C'}, 8458 {"datasets", no_argument, NULL, 'd'}, 8459 {"dedup-stats", no_argument, NULL, 'D'}, 8460 {"exported", no_argument, NULL, 'e'}, 8461 {"embedded-block-pointer", no_argument, NULL, 'E'}, 8462 {"automatic-rewind", no_argument, NULL, 'F'}, 8463 {"dump-debug-msg", no_argument, NULL, 'G'}, 8464 {"history", no_argument, NULL, 'h'}, 8465 {"intent-logs", no_argument, NULL, 'i'}, 8466 {"inflight", required_argument, NULL, 'I'}, 8467 {"checkpointed-state", no_argument, NULL, 'k'}, 8468 {"label", no_argument, NULL, 'l'}, 8469 {"disable-leak-tracking", no_argument, NULL, 'L'}, 8470 {"metaslabs", no_argument, NULL, 'm'}, 8471 {"metaslab-groups", no_argument, NULL, 'M'}, 8472 {"numeric", no_argument, NULL, 'N'}, 8473 {"option", required_argument, NULL, 'o'}, 8474 {"object-lookups", no_argument, NULL, 'O'}, 8475 {"path", required_argument, NULL, 'p'}, 8476 {"parseable", no_argument, NULL, 'P'}, 8477 {"skip-label", no_argument, NULL, 'q'}, 8478 {"copy-object", no_argument, NULL, 'r'}, 8479 {"read-block", no_argument, NULL, 'R'}, 8480 {"io-stats", no_argument, NULL, 's'}, 8481 {"simulate-dedup", no_argument, NULL, 'S'}, 8482 {"txg", required_argument, NULL, 't'}, 8483 {"uberblock", no_argument, NULL, 'u'}, 8484 {"cachefile", required_argument, NULL, 'U'}, 8485 {"verbose", no_argument, NULL, 'v'}, 8486 {"verbatim", no_argument, NULL, 'V'}, 8487 {"dump-blocks", required_argument, NULL, 'x'}, 8488 {"extreme-rewind", no_argument, NULL, 'X'}, 8489 {"all-reconstruction", no_argument, NULL, 'Y'}, 8490 {"livelist", no_argument, NULL, 'y'}, 8491 {"zstd-headers", no_argument, NULL, 'Z'}, 8492 {0, 0, 0, 0} 8493 }; 8494 8495 while ((c = getopt_long(argc, argv, 8496 "AbcCdDeEFGhiI:klLmMNo:Op:PqrRsSt:uU:vVx:XYyZ", 8497 long_options, NULL)) != -1) { 8498 switch (c) { 8499 case 'b': 8500 case 'c': 8501 case 'C': 8502 case 'd': 8503 case 'D': 8504 case 'E': 8505 case 'G': 8506 case 'h': 8507 case 'i': 8508 case 'l': 8509 case 'm': 8510 case 'M': 8511 case 'N': 8512 case 'O': 8513 case 'r': 8514 case 'R': 8515 case 's': 8516 case 'S': 8517 case 'u': 8518 case 'y': 8519 case 'Z': 8520 dump_opt[c]++; 8521 dump_all = 0; 8522 break; 8523 case 'A': 8524 case 'e': 8525 case 'F': 8526 case 'k': 8527 case 'L': 8528 case 'P': 8529 case 'q': 8530 case 'X': 8531 dump_opt[c]++; 8532 break; 8533 case 'Y': 8534 zfs_reconstruct_indirect_combinations_max = INT_MAX; 8535 zfs_deadman_enabled = 0; 8536 break; 8537 /* NB: Sort single match options below. */ 8538 case 'I': 8539 max_inflight_bytes = strtoull(optarg, NULL, 0); 8540 if (max_inflight_bytes == 0) { 8541 (void) fprintf(stderr, "maximum number " 8542 "of inflight bytes must be greater " 8543 "than 0\n"); 8544 usage(); 8545 } 8546 break; 8547 case 'o': 8548 error = set_global_var(optarg); 8549 if (error != 0) 8550 usage(); 8551 break; 8552 case 'p': 8553 if (searchdirs == NULL) { 8554 searchdirs = umem_alloc(sizeof (char *), 8555 UMEM_NOFAIL); 8556 } else { 8557 char **tmp = umem_alloc((nsearch + 1) * 8558 sizeof (char *), UMEM_NOFAIL); 8559 bcopy(searchdirs, tmp, nsearch * 8560 sizeof (char *)); 8561 umem_free(searchdirs, 8562 nsearch * sizeof (char *)); 8563 searchdirs = tmp; 8564 } 8565 searchdirs[nsearch++] = optarg; 8566 break; 8567 case 't': 8568 max_txg = strtoull(optarg, NULL, 0); 8569 if (max_txg < TXG_INITIAL) { 8570 (void) fprintf(stderr, "incorrect txg " 8571 "specified: %s\n", optarg); 8572 usage(); 8573 } 8574 break; 8575 case 'U': 8576 spa_config_path = optarg; 8577 if (spa_config_path[0] != '/') { 8578 (void) fprintf(stderr, 8579 "cachefile must be an absolute path " 8580 "(i.e. start with a slash)\n"); 8581 usage(); 8582 } 8583 break; 8584 case 'v': 8585 verbose++; 8586 break; 8587 case 'V': 8588 flags = ZFS_IMPORT_VERBATIM; 8589 break; 8590 case 'x': 8591 vn_dumpdir = optarg; 8592 break; 8593 default: 8594 usage(); 8595 break; 8596 } 8597 } 8598 8599 if (!dump_opt['e'] && searchdirs != NULL) { 8600 (void) fprintf(stderr, "-p option requires use of -e\n"); 8601 usage(); 8602 } 8603 #if defined(_LP64) 8604 /* 8605 * ZDB does not typically re-read blocks; therefore limit the ARC 8606 * to 256 MB, which can be used entirely for metadata. 8607 */ 8608 zfs_arc_min = zfs_arc_meta_min = 2ULL << SPA_MAXBLOCKSHIFT; 8609 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024; 8610 #endif 8611 8612 /* 8613 * "zdb -c" uses checksum-verifying scrub i/os which are async reads. 8614 * "zdb -b" uses traversal prefetch which uses async reads. 8615 * For good performance, let several of them be active at once. 8616 */ 8617 zfs_vdev_async_read_max_active = 10; 8618 8619 /* 8620 * Disable reference tracking for better performance. 8621 */ 8622 reference_tracking_enable = B_FALSE; 8623 8624 /* 8625 * Do not fail spa_load when spa_load_verify fails. This is needed 8626 * to load non-idle pools. 8627 */ 8628 spa_load_verify_dryrun = B_TRUE; 8629 8630 /* 8631 * ZDB should have ability to read spacemaps. 8632 */ 8633 spa_mode_readable_spacemaps = B_TRUE; 8634 8635 kernel_init(SPA_MODE_READ); 8636 8637 if (dump_all) 8638 verbose = MAX(verbose, 1); 8639 8640 for (c = 0; c < 256; c++) { 8641 if (dump_all && strchr("AeEFklLNOPrRSXy", c) == NULL) 8642 dump_opt[c] = 1; 8643 if (dump_opt[c]) 8644 dump_opt[c] += verbose; 8645 } 8646 8647 libspl_assert_ok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 8648 zfs_recover = (dump_opt['A'] > 1); 8649 8650 argc -= optind; 8651 argv += optind; 8652 if (argc < 2 && dump_opt['R']) 8653 usage(); 8654 8655 if (dump_opt['E']) { 8656 if (argc != 1) 8657 usage(); 8658 zdb_embedded_block(argv[0]); 8659 return (0); 8660 } 8661 8662 if (argc < 1) { 8663 if (!dump_opt['e'] && dump_opt['C']) { 8664 dump_cachefile(spa_config_path); 8665 return (0); 8666 } 8667 usage(); 8668 } 8669 8670 if (dump_opt['l']) 8671 return (dump_label(argv[0])); 8672 8673 if (dump_opt['O']) { 8674 if (argc != 2) 8675 usage(); 8676 dump_opt['v'] = verbose + 3; 8677 return (dump_path(argv[0], argv[1], NULL)); 8678 } 8679 if (dump_opt['r']) { 8680 target_is_spa = B_FALSE; 8681 if (argc != 3) 8682 usage(); 8683 dump_opt['v'] = verbose; 8684 error = dump_path(argv[0], argv[1], &object); 8685 } 8686 8687 if (dump_opt['X'] || dump_opt['F']) 8688 rewind = ZPOOL_DO_REWIND | 8689 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 8690 8691 /* -N implies -d */ 8692 if (dump_opt['N'] && dump_opt['d'] == 0) 8693 dump_opt['d'] = dump_opt['N']; 8694 8695 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 8696 nvlist_add_uint64(policy, ZPOOL_LOAD_REQUEST_TXG, max_txg) != 0 || 8697 nvlist_add_uint32(policy, ZPOOL_LOAD_REWIND_POLICY, rewind) != 0) 8698 fatal("internal error: %s", strerror(ENOMEM)); 8699 8700 error = 0; 8701 target = argv[0]; 8702 8703 if (strpbrk(target, "/@") != NULL) { 8704 size_t targetlen; 8705 8706 target_pool = strdup(target); 8707 *strpbrk(target_pool, "/@") = '\0'; 8708 8709 target_is_spa = B_FALSE; 8710 targetlen = strlen(target); 8711 if (targetlen && target[targetlen - 1] == '/') 8712 target[targetlen - 1] = '\0'; 8713 8714 /* 8715 * See if an objset ID was supplied (-d <pool>/<objset ID>). 8716 * To disambiguate tank/100, consider the 100 as objsetID 8717 * if -N was given, otherwise 100 is an objsetID iff 8718 * tank/100 as a named dataset fails on lookup. 8719 */ 8720 objset_str = strchr(target, '/'); 8721 if (objset_str && strlen(objset_str) > 1 && 8722 zdb_numeric(objset_str + 1)) { 8723 char *endptr; 8724 errno = 0; 8725 objset_str++; 8726 objset_id = strtoull(objset_str, &endptr, 0); 8727 /* dataset 0 is the same as opening the pool */ 8728 if (errno == 0 && endptr != objset_str && 8729 objset_id != 0) { 8730 if (dump_opt['N']) 8731 dataset_lookup = B_TRUE; 8732 } 8733 /* normal dataset name not an objset ID */ 8734 if (endptr == objset_str) { 8735 objset_id = -1; 8736 } 8737 } else if (objset_str && !zdb_numeric(objset_str + 1) && 8738 dump_opt['N']) { 8739 printf("Supply a numeric objset ID with -N\n"); 8740 exit(1); 8741 } 8742 } else { 8743 target_pool = target; 8744 } 8745 8746 if (dump_opt['e']) { 8747 importargs_t args = { 0 }; 8748 8749 args.paths = nsearch; 8750 args.path = searchdirs; 8751 args.can_be_active = B_TRUE; 8752 8753 error = zpool_find_config(NULL, target_pool, &cfg, &args, 8754 &libzpool_config_ops); 8755 8756 if (error == 0) { 8757 8758 if (nvlist_add_nvlist(cfg, 8759 ZPOOL_LOAD_POLICY, policy) != 0) { 8760 fatal("can't open '%s': %s", 8761 target, strerror(ENOMEM)); 8762 } 8763 8764 if (dump_opt['C'] > 1) { 8765 (void) printf("\nConfiguration for import:\n"); 8766 dump_nvlist(cfg, 8); 8767 } 8768 8769 /* 8770 * Disable the activity check to allow examination of 8771 * active pools. 8772 */ 8773 error = spa_import(target_pool, cfg, NULL, 8774 flags | ZFS_IMPORT_SKIP_MMP); 8775 } 8776 } 8777 8778 if (searchdirs != NULL) { 8779 umem_free(searchdirs, nsearch * sizeof (char *)); 8780 searchdirs = NULL; 8781 } 8782 8783 /* 8784 * import_checkpointed_state makes the assumption that the 8785 * target pool that we pass it is already part of the spa 8786 * namespace. Because of that we need to make sure to call 8787 * it always after the -e option has been processed, which 8788 * imports the pool to the namespace if it's not in the 8789 * cachefile. 8790 */ 8791 char *checkpoint_pool = NULL; 8792 char *checkpoint_target = NULL; 8793 if (dump_opt['k']) { 8794 checkpoint_pool = import_checkpointed_state(target, cfg, 8795 &checkpoint_target); 8796 8797 if (checkpoint_target != NULL) 8798 target = checkpoint_target; 8799 } 8800 8801 if (cfg != NULL) { 8802 nvlist_free(cfg); 8803 cfg = NULL; 8804 } 8805 8806 if (target_pool != target) 8807 free(target_pool); 8808 8809 if (error == 0) { 8810 if (dump_opt['k'] && (target_is_spa || dump_opt['R'])) { 8811 ASSERT(checkpoint_pool != NULL); 8812 ASSERT(checkpoint_target == NULL); 8813 8814 error = spa_open(checkpoint_pool, &spa, FTAG); 8815 if (error != 0) { 8816 fatal("Tried to open pool \"%s\" but " 8817 "spa_open() failed with error %d\n", 8818 checkpoint_pool, error); 8819 } 8820 8821 } else if (target_is_spa || dump_opt['R'] || objset_id == 0) { 8822 zdb_set_skip_mmp(target); 8823 error = spa_open_rewind(target, &spa, FTAG, policy, 8824 NULL); 8825 if (error) { 8826 /* 8827 * If we're missing the log device then 8828 * try opening the pool after clearing the 8829 * log state. 8830 */ 8831 mutex_enter(&spa_namespace_lock); 8832 if ((spa = spa_lookup(target)) != NULL && 8833 spa->spa_log_state == SPA_LOG_MISSING) { 8834 spa->spa_log_state = SPA_LOG_CLEAR; 8835 error = 0; 8836 } 8837 mutex_exit(&spa_namespace_lock); 8838 8839 if (!error) { 8840 error = spa_open_rewind(target, &spa, 8841 FTAG, policy, NULL); 8842 } 8843 } 8844 } else if (strpbrk(target, "#") != NULL) { 8845 dsl_pool_t *dp; 8846 error = dsl_pool_hold(target, FTAG, &dp); 8847 if (error != 0) { 8848 fatal("can't dump '%s': %s", target, 8849 strerror(error)); 8850 } 8851 error = dump_bookmark(dp, target, B_TRUE, verbose > 1); 8852 dsl_pool_rele(dp, FTAG); 8853 if (error != 0) { 8854 fatal("can't dump '%s': %s", target, 8855 strerror(error)); 8856 } 8857 return (error); 8858 } else { 8859 target_pool = strdup(target); 8860 if (strpbrk(target, "/@") != NULL) 8861 *strpbrk(target_pool, "/@") = '\0'; 8862 8863 zdb_set_skip_mmp(target); 8864 /* 8865 * If -N was supplied, the user has indicated that 8866 * zdb -d <pool>/<objsetID> is in effect. Otherwise 8867 * we first assume that the dataset string is the 8868 * dataset name. If dmu_objset_hold fails with the 8869 * dataset string, and we have an objset_id, retry the 8870 * lookup with the objsetID. 8871 */ 8872 boolean_t retry = B_TRUE; 8873 retry_lookup: 8874 if (dataset_lookup == B_TRUE) { 8875 /* 8876 * Use the supplied id to get the name 8877 * for open_objset. 8878 */ 8879 error = spa_open(target_pool, &spa, FTAG); 8880 if (error == 0) { 8881 error = name_from_objset_id(spa, 8882 objset_id, dsname); 8883 spa_close(spa, FTAG); 8884 if (error == 0) 8885 target = dsname; 8886 } 8887 } 8888 if (error == 0) { 8889 if (objset_id > 0 && retry) { 8890 int err = dmu_objset_hold(target, FTAG, 8891 &os); 8892 if (err) { 8893 dataset_lookup = B_TRUE; 8894 retry = B_FALSE; 8895 goto retry_lookup; 8896 } else { 8897 dmu_objset_rele(os, FTAG); 8898 } 8899 } 8900 error = open_objset(target, FTAG, &os); 8901 } 8902 if (error == 0) 8903 spa = dmu_objset_spa(os); 8904 free(target_pool); 8905 } 8906 } 8907 nvlist_free(policy); 8908 8909 if (error) 8910 fatal("can't open '%s': %s", target, strerror(error)); 8911 8912 /* 8913 * Set the pool failure mode to panic in order to prevent the pool 8914 * from suspending. A suspended I/O will have no way to resume and 8915 * can prevent the zdb(8) command from terminating as expected. 8916 */ 8917 if (spa != NULL) 8918 spa->spa_failmode = ZIO_FAILURE_MODE_PANIC; 8919 8920 argv++; 8921 argc--; 8922 if (dump_opt['r']) { 8923 error = zdb_copy_object(os, object, argv[1]); 8924 } else if (!dump_opt['R']) { 8925 flagbits['d'] = ZOR_FLAG_DIRECTORY; 8926 flagbits['f'] = ZOR_FLAG_PLAIN_FILE; 8927 flagbits['m'] = ZOR_FLAG_SPACE_MAP; 8928 flagbits['z'] = ZOR_FLAG_ZAP; 8929 flagbits['A'] = ZOR_FLAG_ALL_TYPES; 8930 8931 if (argc > 0 && dump_opt['d']) { 8932 zopt_object_args = argc; 8933 zopt_object_ranges = calloc(zopt_object_args, 8934 sizeof (zopt_object_range_t)); 8935 for (unsigned i = 0; i < zopt_object_args; i++) { 8936 int err; 8937 char *msg = NULL; 8938 8939 err = parse_object_range(argv[i], 8940 &zopt_object_ranges[i], &msg); 8941 if (err != 0) 8942 fatal("Bad object or range: '%s': %s\n", 8943 argv[i], msg ? msg : ""); 8944 } 8945 } else if (argc > 0 && dump_opt['m']) { 8946 zopt_metaslab_args = argc; 8947 zopt_metaslab = calloc(zopt_metaslab_args, 8948 sizeof (uint64_t)); 8949 for (unsigned i = 0; i < zopt_metaslab_args; i++) { 8950 errno = 0; 8951 zopt_metaslab[i] = strtoull(argv[i], NULL, 0); 8952 if (zopt_metaslab[i] == 0 && errno != 0) 8953 fatal("bad number %s: %s", argv[i], 8954 strerror(errno)); 8955 } 8956 } 8957 if (os != NULL) { 8958 dump_objset(os); 8959 } else if (zopt_object_args > 0 && !dump_opt['m']) { 8960 dump_objset(spa->spa_meta_objset); 8961 } else { 8962 dump_zpool(spa); 8963 } 8964 } else { 8965 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 8966 flagbits['c'] = ZDB_FLAG_CHECKSUM; 8967 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 8968 flagbits['e'] = ZDB_FLAG_BSWAP; 8969 flagbits['g'] = ZDB_FLAG_GBH; 8970 flagbits['i'] = ZDB_FLAG_INDIRECT; 8971 flagbits['r'] = ZDB_FLAG_RAW; 8972 flagbits['v'] = ZDB_FLAG_VERBOSE; 8973 8974 for (int i = 0; i < argc; i++) 8975 zdb_read_block(argv[i], spa); 8976 } 8977 8978 if (dump_opt['k']) { 8979 free(checkpoint_pool); 8980 if (!target_is_spa) 8981 free(checkpoint_target); 8982 } 8983 8984 if (os != NULL) { 8985 close_objset(os, FTAG); 8986 } else { 8987 spa_close(spa, FTAG); 8988 } 8989 8990 fuid_table_destroy(); 8991 8992 dump_debug_buffer(); 8993 8994 kernel_fini(); 8995 8996 return (error); 8997 } 8998