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 2017 Nexenta Systems, Inc. 27 * Copyright (c) 2017, 2018 Lawrence Livermore National Security, LLC. 28 * Copyright 2017 RackTop Systems. 29 */ 30 31 #include <stdio.h> 32 #include <unistd.h> 33 #include <stdio_ext.h> 34 #include <stdlib.h> 35 #include <ctype.h> 36 #include <sys/zfs_context.h> 37 #include <sys/spa.h> 38 #include <sys/spa_impl.h> 39 #include <sys/dmu.h> 40 #include <sys/zap.h> 41 #include <sys/fs/zfs.h> 42 #include <sys/zfs_znode.h> 43 #include <sys/zfs_sa.h> 44 #include <sys/sa.h> 45 #include <sys/sa_impl.h> 46 #include <sys/vdev.h> 47 #include <sys/vdev_impl.h> 48 #include <sys/metaslab_impl.h> 49 #include <sys/dmu_objset.h> 50 #include <sys/dsl_dir.h> 51 #include <sys/dsl_dataset.h> 52 #include <sys/dsl_pool.h> 53 #include <sys/dbuf.h> 54 #include <sys/zil.h> 55 #include <sys/zil_impl.h> 56 #include <sys/stat.h> 57 #include <sys/resource.h> 58 #include <sys/dmu_traverse.h> 59 #include <sys/zio_checksum.h> 60 #include <sys/zio_compress.h> 61 #include <zfs_fletcher.h> 62 #include <sys/zfs_fuid.h> 63 #include <sys/arc.h> 64 #include <sys/arc_impl.h> 65 #include <sys/ddt.h> 66 #include <sys/zfeature.h> 67 #include <sys/abd.h> 68 #include <sys/blkptr.h> 69 #include <sys/dsl_scan.h> 70 #include <sys/dsl_crypt.h> 71 #include <zfs_comutil.h> 72 #include <libcmdutils.h> 73 #undef verify 74 #include <libzfs.h> 75 76 #include <libnvpair.h> 77 #include <libzutil.h> 78 79 #include "zdb.h" 80 81 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \ 82 zio_compress_table[(idx)].ci_name : "UNKNOWN") 83 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \ 84 zio_checksum_table[(idx)].ci_name : "UNKNOWN") 85 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \ 86 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \ 87 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN") 88 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \ 89 (idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA ? \ 90 DMU_OT_ZAP_OTHER : \ 91 (idx) == DMU_OTN_UINT64_DATA || (idx) == DMU_OTN_UINT64_METADATA ? \ 92 DMU_OT_UINT64_OTHER : DMU_OT_NUMTYPES) 93 94 extern int reference_tracking_enable; 95 extern boolean_t zfs_recover; 96 extern uint64_t zfs_arc_max, zfs_arc_meta_limit; 97 extern int zfs_vdev_async_read_max_active; 98 extern int aok; 99 extern boolean_t spa_load_verify_dryrun; 100 extern int zfs_btree_verify_intensity; 101 102 static const char cmdname[] = "zdb"; 103 uint8_t dump_opt[256]; 104 105 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size); 106 107 uint64_t *zopt_object = NULL; 108 static unsigned zopt_objects = 0; 109 uint64_t max_inflight = 1000; 110 static int leaked_objects = 0; 111 112 static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *); 113 static void mos_obj_refd(uint64_t); 114 115 /* 116 * These libumem hooks provide a reasonable set of defaults for the allocator's 117 * debugging facilities. 118 */ 119 const char * 120 _umem_debug_init() 121 { 122 return ("default,verbose"); /* $UMEM_DEBUG setting */ 123 } 124 125 const char * 126 _umem_logging_init(void) 127 { 128 return ("fail,contents"); /* $UMEM_LOGGING setting */ 129 } 130 131 static void 132 usage(void) 133 { 134 (void) fprintf(stderr, 135 "Usage:\t%s [-AbcdDFGhikLMPsvX] [-e [-V] [-p <path> ...]] " 136 "[-I <inflight I/Os>]\n" 137 "\t\t[-o <var>=<value>]... [-t <txg>] [-U <cache>] [-x <dumpdir>]\n" 138 "\t\t[<poolname> [<object> ...]]\n" 139 "\t%s [-AdiPv] [-e [-V] [-p <path> ...]] [-U <cache>] <dataset> " 140 "[<object> ...]\n" 141 "\t%s -C [-A] [-U <cache>]\n" 142 "\t%s -l [-Aqu] <device>\n" 143 "\t%s -m [-AFLPX] [-e [-V] [-p <path> ...]] [-t <txg>] " 144 "[-U <cache>]\n\t\t<poolname> [<vdev> [<metaslab> ...]]\n" 145 "\t%s -O <dataset> <path>\n" 146 "\t%s -R [-A] [-e [-V] [-p <path> ...]] [-U <cache>]\n" 147 "\t\t<poolname> <vdev>:<offset>:<size>[:<flags>]\n" 148 "\t%s -E [-A] word0:word1:...:word15\n" 149 "\t%s -S [-AP] [-e [-V] [-p <path> ...]] [-U <cache>] " 150 "<poolname>\n\n", 151 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, 152 cmdname, cmdname); 153 154 (void) fprintf(stderr, " Dataset name must include at least one " 155 "separator character '/' or '@'\n"); 156 (void) fprintf(stderr, " If dataset name is specified, only that " 157 "dataset is dumped\n"); 158 (void) fprintf(stderr, " If object numbers are specified, only " 159 "those objects are dumped\n\n"); 160 (void) fprintf(stderr, " Options to control amount of output:\n"); 161 (void) fprintf(stderr, " -b block statistics\n"); 162 (void) fprintf(stderr, " -c checksum all metadata (twice for " 163 "all data) blocks\n"); 164 (void) fprintf(stderr, " -C config (or cachefile if alone)\n"); 165 (void) fprintf(stderr, " -d dataset(s)\n"); 166 (void) fprintf(stderr, " -D dedup statistics\n"); 167 (void) fprintf(stderr, " -E decode and display block from an " 168 "embedded block pointer\n"); 169 (void) fprintf(stderr, " -h pool history\n"); 170 (void) fprintf(stderr, " -i intent logs\n"); 171 (void) fprintf(stderr, " -l read label contents\n"); 172 (void) fprintf(stderr, " -k examine the checkpointed state " 173 "of the pool\n"); 174 (void) fprintf(stderr, " -L disable leak tracking (do not " 175 "load spacemaps)\n"); 176 (void) fprintf(stderr, " -m metaslabs\n"); 177 (void) fprintf(stderr, " -M metaslab groups\n"); 178 (void) fprintf(stderr, " -O perform object lookups by path\n"); 179 (void) fprintf(stderr, " -R read and display block from a " 180 "device\n"); 181 (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); 182 (void) fprintf(stderr, " -S simulate dedup to measure effect\n"); 183 (void) fprintf(stderr, " -v verbose (applies to all " 184 "others)\n\n"); 185 (void) fprintf(stderr, " Below options are intended for use " 186 "with other options:\n"); 187 (void) fprintf(stderr, " -A ignore assertions (-A), enable " 188 "panic recovery (-AA) or both (-AAA)\n"); 189 (void) fprintf(stderr, " -e pool is exported/destroyed/" 190 "has altroot/not in a cachefile\n"); 191 (void) fprintf(stderr, " -F attempt automatic rewind within " 192 "safe range of transaction groups\n"); 193 (void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before " 194 "exiting\n"); 195 (void) fprintf(stderr, " -I <number of inflight I/Os> -- " 196 "specify the maximum number of " 197 "checksumming I/Os [default is 200]\n"); 198 (void) fprintf(stderr, " -o <variable>=<value> set global " 199 "variable to an unsigned 32-bit integer value\n"); 200 (void) fprintf(stderr, " -p <path> -- use one or more with " 201 "-e to specify path to vdev dir\n"); 202 (void) fprintf(stderr, " -P print numbers in parseable form\n"); 203 (void) fprintf(stderr, " -q don't print label contents\n"); 204 (void) fprintf(stderr, " -t <txg> -- highest txg to use when " 205 "searching for uberblocks\n"); 206 (void) fprintf(stderr, " -u uberblock\n"); 207 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate " 208 "cachefile\n"); 209 (void) fprintf(stderr, " -V do verbatim import\n"); 210 (void) fprintf(stderr, " -x <dumpdir> -- " 211 "dump all read blocks into specified directory\n"); 212 (void) fprintf(stderr, " -X attempt extreme rewind (does not " 213 "work with dataset)\n\n"); 214 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 215 "to make only that option verbose\n"); 216 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 217 exit(1); 218 } 219 220 static void 221 dump_debug_buffer() 222 { 223 if (dump_opt['G']) { 224 (void) printf("\n"); 225 zfs_dbgmsg_print("zdb"); 226 } 227 } 228 229 /* 230 * Called for usage errors that are discovered after a call to spa_open(), 231 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. 232 */ 233 234 static void 235 fatal(const char *fmt, ...) 236 { 237 va_list ap; 238 239 va_start(ap, fmt); 240 (void) fprintf(stderr, "%s: ", cmdname); 241 (void) vfprintf(stderr, fmt, ap); 242 va_end(ap); 243 (void) fprintf(stderr, "\n"); 244 245 dump_debug_buffer(); 246 247 exit(1); 248 } 249 250 /* ARGSUSED */ 251 static void 252 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 253 { 254 nvlist_t *nv; 255 size_t nvsize = *(uint64_t *)data; 256 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 257 258 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH)); 259 260 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 261 262 umem_free(packed, nvsize); 263 264 dump_nvlist(nv, 8); 265 266 nvlist_free(nv); 267 } 268 269 /* ARGSUSED */ 270 static void 271 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size) 272 { 273 spa_history_phys_t *shp = data; 274 275 if (shp == NULL) 276 return; 277 278 (void) printf("\t\tpool_create_len = %llu\n", 279 (u_longlong_t)shp->sh_pool_create_len); 280 (void) printf("\t\tphys_max_off = %llu\n", 281 (u_longlong_t)shp->sh_phys_max_off); 282 (void) printf("\t\tbof = %llu\n", 283 (u_longlong_t)shp->sh_bof); 284 (void) printf("\t\teof = %llu\n", 285 (u_longlong_t)shp->sh_eof); 286 (void) printf("\t\trecords_lost = %llu\n", 287 (u_longlong_t)shp->sh_records_lost); 288 } 289 290 static void 291 zdb_nicenum(uint64_t num, char *buf, size_t buflen) 292 { 293 if (dump_opt['P']) 294 (void) snprintf(buf, buflen, "%llu", (longlong_t)num); 295 else 296 nicenum(num, buf, sizeof (buf)); 297 } 298 299 static const char histo_stars[] = "****************************************"; 300 static const uint64_t histo_width = sizeof (histo_stars) - 1; 301 302 static void 303 dump_histogram(const uint64_t *histo, int size, int offset) 304 { 305 int i; 306 int minidx = size - 1; 307 int maxidx = 0; 308 uint64_t max = 0; 309 310 for (i = 0; i < size; i++) { 311 if (histo[i] > max) 312 max = histo[i]; 313 if (histo[i] > 0 && i > maxidx) 314 maxidx = i; 315 if (histo[i] > 0 && i < minidx) 316 minidx = i; 317 } 318 319 if (max < histo_width) 320 max = histo_width; 321 322 for (i = minidx; i <= maxidx; i++) { 323 (void) printf("\t\t\t%3u: %6llu %s\n", 324 i + offset, (u_longlong_t)histo[i], 325 &histo_stars[(max - histo[i]) * histo_width / max]); 326 } 327 } 328 329 static void 330 dump_zap_stats(objset_t *os, uint64_t object) 331 { 332 int error; 333 zap_stats_t zs; 334 335 error = zap_get_stats(os, object, &zs); 336 if (error) 337 return; 338 339 if (zs.zs_ptrtbl_len == 0) { 340 ASSERT(zs.zs_num_blocks == 1); 341 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 342 (u_longlong_t)zs.zs_blocksize, 343 (u_longlong_t)zs.zs_num_entries); 344 return; 345 } 346 347 (void) printf("\tFat ZAP stats:\n"); 348 349 (void) printf("\t\tPointer table:\n"); 350 (void) printf("\t\t\t%llu elements\n", 351 (u_longlong_t)zs.zs_ptrtbl_len); 352 (void) printf("\t\t\tzt_blk: %llu\n", 353 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 354 (void) printf("\t\t\tzt_numblks: %llu\n", 355 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 356 (void) printf("\t\t\tzt_shift: %llu\n", 357 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 358 (void) printf("\t\t\tzt_blks_copied: %llu\n", 359 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 360 (void) printf("\t\t\tzt_nextblk: %llu\n", 361 (u_longlong_t)zs.zs_ptrtbl_nextblk); 362 363 (void) printf("\t\tZAP entries: %llu\n", 364 (u_longlong_t)zs.zs_num_entries); 365 (void) printf("\t\tLeaf blocks: %llu\n", 366 (u_longlong_t)zs.zs_num_leafs); 367 (void) printf("\t\tTotal blocks: %llu\n", 368 (u_longlong_t)zs.zs_num_blocks); 369 (void) printf("\t\tzap_block_type: 0x%llx\n", 370 (u_longlong_t)zs.zs_block_type); 371 (void) printf("\t\tzap_magic: 0x%llx\n", 372 (u_longlong_t)zs.zs_magic); 373 (void) printf("\t\tzap_salt: 0x%llx\n", 374 (u_longlong_t)zs.zs_salt); 375 376 (void) printf("\t\tLeafs with 2^n pointers:\n"); 377 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0); 378 379 (void) printf("\t\tBlocks with n*5 entries:\n"); 380 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0); 381 382 (void) printf("\t\tBlocks n/10 full:\n"); 383 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0); 384 385 (void) printf("\t\tEntries with n chunks:\n"); 386 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0); 387 388 (void) printf("\t\tBuckets with n entries:\n"); 389 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0); 390 } 391 392 /*ARGSUSED*/ 393 static void 394 dump_none(objset_t *os, uint64_t object, void *data, size_t size) 395 { 396 } 397 398 /*ARGSUSED*/ 399 static void 400 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size) 401 { 402 (void) printf("\tUNKNOWN OBJECT TYPE\n"); 403 } 404 405 /*ARGSUSED*/ 406 static void 407 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 408 { 409 } 410 411 /*ARGSUSED*/ 412 static void 413 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 414 { 415 } 416 417 /*ARGSUSED*/ 418 static void 419 dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 420 { 421 zap_cursor_t zc; 422 zap_attribute_t attr; 423 void *prop; 424 unsigned i; 425 426 dump_zap_stats(os, object); 427 (void) printf("\n"); 428 429 for (zap_cursor_init(&zc, os, object); 430 zap_cursor_retrieve(&zc, &attr) == 0; 431 zap_cursor_advance(&zc)) { 432 (void) printf("\t\t%s = ", attr.za_name); 433 if (attr.za_num_integers == 0) { 434 (void) printf("\n"); 435 continue; 436 } 437 prop = umem_zalloc(attr.za_num_integers * 438 attr.za_integer_length, UMEM_NOFAIL); 439 (void) zap_lookup(os, object, attr.za_name, 440 attr.za_integer_length, attr.za_num_integers, prop); 441 if (attr.za_integer_length == 1) { 442 if (strcmp(attr.za_name, 443 DSL_CRYPTO_KEY_MASTER_KEY) == 0 || 444 strcmp(attr.za_name, 445 DSL_CRYPTO_KEY_HMAC_KEY) == 0 || 446 strcmp(attr.za_name, DSL_CRYPTO_KEY_IV) == 0 || 447 strcmp(attr.za_name, DSL_CRYPTO_KEY_MAC) == 0 || 448 strcmp(attr.za_name, DMU_POOL_CHECKSUM_SALT) == 0) { 449 uint8_t *u8 = prop; 450 451 for (i = 0; i < attr.za_num_integers; i++) { 452 (void) printf("%02x", u8[i]); 453 } 454 } else { 455 (void) printf("%s", (char *)prop); 456 } 457 } else { 458 for (i = 0; i < attr.za_num_integers; i++) { 459 switch (attr.za_integer_length) { 460 case 2: 461 (void) printf("%u ", 462 ((uint16_t *)prop)[i]); 463 break; 464 case 4: 465 (void) printf("%u ", 466 ((uint32_t *)prop)[i]); 467 break; 468 case 8: 469 (void) printf("%lld ", 470 (u_longlong_t)((int64_t *)prop)[i]); 471 break; 472 } 473 } 474 } 475 (void) printf("\n"); 476 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 477 } 478 zap_cursor_fini(&zc); 479 } 480 481 static void 482 dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size) 483 { 484 bpobj_phys_t *bpop = data; 485 char bytes[32], comp[32], uncomp[32]; 486 487 /* make sure the output won't get truncated */ 488 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 489 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ); 490 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ); 491 492 if (bpop == NULL) 493 return; 494 495 zdb_nicenum(bpop->bpo_bytes, bytes, sizeof (bytes)); 496 zdb_nicenum(bpop->bpo_comp, comp, sizeof (comp)); 497 zdb_nicenum(bpop->bpo_uncomp, uncomp, sizeof (uncomp)); 498 499 (void) printf("\t\tnum_blkptrs = %llu\n", 500 (u_longlong_t)bpop->bpo_num_blkptrs); 501 (void) printf("\t\tbytes = %s\n", bytes); 502 if (size >= BPOBJ_SIZE_V1) { 503 (void) printf("\t\tcomp = %s\n", comp); 504 (void) printf("\t\tuncomp = %s\n", uncomp); 505 } 506 if (size >= sizeof (*bpop)) { 507 (void) printf("\t\tsubobjs = %llu\n", 508 (u_longlong_t)bpop->bpo_subobjs); 509 (void) printf("\t\tnum_subobjs = %llu\n", 510 (u_longlong_t)bpop->bpo_num_subobjs); 511 } 512 513 if (dump_opt['d'] < 5) 514 return; 515 516 for (uint64_t i = 0; i < bpop->bpo_num_blkptrs; i++) { 517 char blkbuf[BP_SPRINTF_LEN]; 518 blkptr_t bp; 519 520 int err = dmu_read(os, object, 521 i * sizeof (bp), sizeof (bp), &bp, 0); 522 if (err != 0) { 523 (void) printf("got error %u from dmu_read\n", err); 524 break; 525 } 526 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp); 527 (void) printf("\t%s\n", blkbuf); 528 } 529 } 530 531 /* ARGSUSED */ 532 static void 533 dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size) 534 { 535 dmu_object_info_t doi; 536 537 VERIFY0(dmu_object_info(os, object, &doi)); 538 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP); 539 540 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0); 541 if (err != 0) { 542 (void) printf("got error %u from dmu_read\n", err); 543 kmem_free(subobjs, doi.doi_max_offset); 544 return; 545 } 546 547 int64_t last_nonzero = -1; 548 for (uint64_t i = 0; i < doi.doi_max_offset / 8; i++) { 549 if (subobjs[i] != 0) 550 last_nonzero = i; 551 } 552 553 for (int64_t i = 0; i <= last_nonzero; i++) { 554 (void) printf("\t%llu\n", (longlong_t)subobjs[i]); 555 } 556 kmem_free(subobjs, doi.doi_max_offset); 557 } 558 559 /*ARGSUSED*/ 560 static void 561 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size) 562 { 563 dump_zap_stats(os, object); 564 /* contents are printed elsewhere, properly decoded */ 565 } 566 567 /*ARGSUSED*/ 568 static void 569 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size) 570 { 571 zap_cursor_t zc; 572 zap_attribute_t attr; 573 574 dump_zap_stats(os, object); 575 (void) printf("\n"); 576 577 for (zap_cursor_init(&zc, os, object); 578 zap_cursor_retrieve(&zc, &attr) == 0; 579 zap_cursor_advance(&zc)) { 580 (void) printf("\t\t%s = ", attr.za_name); 581 if (attr.za_num_integers == 0) { 582 (void) printf("\n"); 583 continue; 584 } 585 (void) printf(" %llx : [%d:%d:%d]\n", 586 (u_longlong_t)attr.za_first_integer, 587 (int)ATTR_LENGTH(attr.za_first_integer), 588 (int)ATTR_BSWAP(attr.za_first_integer), 589 (int)ATTR_NUM(attr.za_first_integer)); 590 } 591 zap_cursor_fini(&zc); 592 } 593 594 /*ARGSUSED*/ 595 static void 596 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size) 597 { 598 zap_cursor_t zc; 599 zap_attribute_t attr; 600 uint16_t *layout_attrs; 601 unsigned i; 602 603 dump_zap_stats(os, object); 604 (void) printf("\n"); 605 606 for (zap_cursor_init(&zc, os, object); 607 zap_cursor_retrieve(&zc, &attr) == 0; 608 zap_cursor_advance(&zc)) { 609 (void) printf("\t\t%s = [", attr.za_name); 610 if (attr.za_num_integers == 0) { 611 (void) printf("\n"); 612 continue; 613 } 614 615 VERIFY(attr.za_integer_length == 2); 616 layout_attrs = umem_zalloc(attr.za_num_integers * 617 attr.za_integer_length, UMEM_NOFAIL); 618 619 VERIFY(zap_lookup(os, object, attr.za_name, 620 attr.za_integer_length, 621 attr.za_num_integers, layout_attrs) == 0); 622 623 for (i = 0; i != attr.za_num_integers; i++) 624 (void) printf(" %d ", (int)layout_attrs[i]); 625 (void) printf("]\n"); 626 umem_free(layout_attrs, 627 attr.za_num_integers * attr.za_integer_length); 628 } 629 zap_cursor_fini(&zc); 630 } 631 632 /*ARGSUSED*/ 633 static void 634 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 635 { 636 zap_cursor_t zc; 637 zap_attribute_t attr; 638 const char *typenames[] = { 639 /* 0 */ "not specified", 640 /* 1 */ "FIFO", 641 /* 2 */ "Character Device", 642 /* 3 */ "3 (invalid)", 643 /* 4 */ "Directory", 644 /* 5 */ "5 (invalid)", 645 /* 6 */ "Block Device", 646 /* 7 */ "7 (invalid)", 647 /* 8 */ "Regular File", 648 /* 9 */ "9 (invalid)", 649 /* 10 */ "Symbolic Link", 650 /* 11 */ "11 (invalid)", 651 /* 12 */ "Socket", 652 /* 13 */ "Door", 653 /* 14 */ "Event Port", 654 /* 15 */ "15 (invalid)", 655 }; 656 657 dump_zap_stats(os, object); 658 (void) printf("\n"); 659 660 for (zap_cursor_init(&zc, os, object); 661 zap_cursor_retrieve(&zc, &attr) == 0; 662 zap_cursor_advance(&zc)) { 663 (void) printf("\t\t%s = %lld (type: %s)\n", 664 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 665 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 666 } 667 zap_cursor_fini(&zc); 668 } 669 670 static int 671 get_dtl_refcount(vdev_t *vd) 672 { 673 int refcount = 0; 674 675 if (vd->vdev_ops->vdev_op_leaf) { 676 space_map_t *sm = vd->vdev_dtl_sm; 677 678 if (sm != NULL && 679 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 680 return (1); 681 return (0); 682 } 683 684 for (unsigned c = 0; c < vd->vdev_children; c++) 685 refcount += get_dtl_refcount(vd->vdev_child[c]); 686 return (refcount); 687 } 688 689 static int 690 get_metaslab_refcount(vdev_t *vd) 691 { 692 int refcount = 0; 693 694 if (vd->vdev_top == vd) { 695 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 696 space_map_t *sm = vd->vdev_ms[m]->ms_sm; 697 698 if (sm != NULL && 699 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 700 refcount++; 701 } 702 } 703 for (unsigned c = 0; c < vd->vdev_children; c++) 704 refcount += get_metaslab_refcount(vd->vdev_child[c]); 705 706 return (refcount); 707 } 708 709 static int 710 get_obsolete_refcount(vdev_t *vd) 711 { 712 int refcount = 0; 713 714 uint64_t obsolete_sm_obj = vdev_obsolete_sm_object(vd); 715 if (vd->vdev_top == vd && obsolete_sm_obj != 0) { 716 dmu_object_info_t doi; 717 VERIFY0(dmu_object_info(vd->vdev_spa->spa_meta_objset, 718 obsolete_sm_obj, &doi)); 719 if (doi.doi_bonus_size == sizeof (space_map_phys_t)) { 720 refcount++; 721 } 722 } else { 723 ASSERT3P(vd->vdev_obsolete_sm, ==, NULL); 724 ASSERT3U(obsolete_sm_obj, ==, 0); 725 } 726 for (unsigned c = 0; c < vd->vdev_children; c++) { 727 refcount += get_obsolete_refcount(vd->vdev_child[c]); 728 } 729 730 return (refcount); 731 } 732 733 static int 734 get_prev_obsolete_spacemap_refcount(spa_t *spa) 735 { 736 uint64_t prev_obj = 737 spa->spa_condensing_indirect_phys.scip_prev_obsolete_sm_object; 738 if (prev_obj != 0) { 739 dmu_object_info_t doi; 740 VERIFY0(dmu_object_info(spa->spa_meta_objset, prev_obj, &doi)); 741 if (doi.doi_bonus_size == sizeof (space_map_phys_t)) { 742 return (1); 743 } 744 } 745 return (0); 746 } 747 748 static int 749 get_checkpoint_refcount(vdev_t *vd) 750 { 751 int refcount = 0; 752 753 if (vd->vdev_top == vd && vd->vdev_top_zap != 0 && 754 zap_contains(spa_meta_objset(vd->vdev_spa), 755 vd->vdev_top_zap, VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) == 0) 756 refcount++; 757 758 for (uint64_t c = 0; c < vd->vdev_children; c++) 759 refcount += get_checkpoint_refcount(vd->vdev_child[c]); 760 761 return (refcount); 762 } 763 764 static int 765 get_log_spacemap_refcount(spa_t *spa) 766 { 767 return (avl_numnodes(&spa->spa_sm_logs_by_txg)); 768 } 769 770 static int 771 verify_spacemap_refcounts(spa_t *spa) 772 { 773 uint64_t expected_refcount = 0; 774 uint64_t actual_refcount; 775 776 (void) feature_get_refcount(spa, 777 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM], 778 &expected_refcount); 779 actual_refcount = get_dtl_refcount(spa->spa_root_vdev); 780 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev); 781 actual_refcount += get_obsolete_refcount(spa->spa_root_vdev); 782 actual_refcount += get_prev_obsolete_spacemap_refcount(spa); 783 actual_refcount += get_checkpoint_refcount(spa->spa_root_vdev); 784 actual_refcount += get_log_spacemap_refcount(spa); 785 786 if (expected_refcount != actual_refcount) { 787 (void) printf("space map refcount mismatch: expected %lld != " 788 "actual %lld\n", 789 (longlong_t)expected_refcount, 790 (longlong_t)actual_refcount); 791 return (2); 792 } 793 return (0); 794 } 795 796 static void 797 dump_spacemap(objset_t *os, space_map_t *sm) 798 { 799 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 800 "INVALID", "INVALID", "INVALID", "INVALID" }; 801 802 if (sm == NULL) 803 return; 804 805 (void) printf("space map object %llu:\n", 806 (longlong_t)sm->sm_object); 807 (void) printf(" smp_length = 0x%llx\n", 808 (longlong_t)sm->sm_phys->smp_length); 809 (void) printf(" smp_alloc = 0x%llx\n", 810 (longlong_t)sm->sm_phys->smp_alloc); 811 812 if (dump_opt['d'] < 6 && dump_opt['m'] < 4) 813 return; 814 815 /* 816 * Print out the freelist entries in both encoded and decoded form. 817 */ 818 uint8_t mapshift = sm->sm_shift; 819 int64_t alloc = 0; 820 uint64_t word, entry_id = 0; 821 for (uint64_t offset = 0; offset < space_map_length(sm); 822 offset += sizeof (word)) { 823 824 VERIFY0(dmu_read(os, space_map_object(sm), offset, 825 sizeof (word), &word, DMU_READ_PREFETCH)); 826 827 if (sm_entry_is_debug(word)) { 828 (void) printf("\t [%6llu] %s: txg %llu pass %llu\n", 829 (u_longlong_t)entry_id, 830 ddata[SM_DEBUG_ACTION_DECODE(word)], 831 (u_longlong_t)SM_DEBUG_TXG_DECODE(word), 832 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(word)); 833 entry_id++; 834 continue; 835 } 836 837 uint8_t words; 838 char entry_type; 839 uint64_t entry_off, entry_run, entry_vdev = SM_NO_VDEVID; 840 841 if (sm_entry_is_single_word(word)) { 842 entry_type = (SM_TYPE_DECODE(word) == SM_ALLOC) ? 843 'A' : 'F'; 844 entry_off = (SM_OFFSET_DECODE(word) << mapshift) + 845 sm->sm_start; 846 entry_run = SM_RUN_DECODE(word) << mapshift; 847 words = 1; 848 } else { 849 /* it is a two-word entry so we read another word */ 850 ASSERT(sm_entry_is_double_word(word)); 851 852 uint64_t extra_word; 853 offset += sizeof (extra_word); 854 VERIFY0(dmu_read(os, space_map_object(sm), offset, 855 sizeof (extra_word), &extra_word, 856 DMU_READ_PREFETCH)); 857 858 ASSERT3U(offset, <=, space_map_length(sm)); 859 860 entry_run = SM2_RUN_DECODE(word) << mapshift; 861 entry_vdev = SM2_VDEV_DECODE(word); 862 entry_type = (SM2_TYPE_DECODE(extra_word) == SM_ALLOC) ? 863 'A' : 'F'; 864 entry_off = (SM2_OFFSET_DECODE(extra_word) << 865 mapshift) + sm->sm_start; 866 words = 2; 867 } 868 869 (void) printf("\t [%6llu] %c range:" 870 " %010llx-%010llx size: %06llx vdev: %06llu words: %u\n", 871 (u_longlong_t)entry_id, 872 entry_type, (u_longlong_t)entry_off, 873 (u_longlong_t)(entry_off + entry_run), 874 (u_longlong_t)entry_run, 875 (u_longlong_t)entry_vdev, words); 876 877 if (entry_type == 'A') 878 alloc += entry_run; 879 else 880 alloc -= entry_run; 881 entry_id++; 882 } 883 if (alloc != space_map_allocated(sm)) { 884 (void) printf("space_map_object alloc (%lld) INCONSISTENT " 885 "with space map summary (%lld)\n", 886 (longlong_t)space_map_allocated(sm), (longlong_t)alloc); 887 } 888 } 889 890 static void 891 dump_metaslab_stats(metaslab_t *msp) 892 { 893 char maxbuf[32]; 894 range_tree_t *rt = msp->ms_allocatable; 895 zfs_btree_t *t = &msp->ms_allocatable_by_size; 896 int free_pct = range_tree_space(rt) * 100 / msp->ms_size; 897 898 /* max sure nicenum has enough space */ 899 CTASSERT(sizeof (maxbuf) >= NN_NUMBUF_SZ); 900 901 zdb_nicenum(metaslab_largest_allocatable(msp), maxbuf, sizeof (maxbuf)); 902 903 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", 904 "segments", zfs_btree_numnodes(t), "maxsize", maxbuf, 905 "freepct", free_pct); 906 (void) printf("\tIn-memory histogram:\n"); 907 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 908 } 909 910 static void 911 dump_metaslab(metaslab_t *msp) 912 { 913 vdev_t *vd = msp->ms_group->mg_vd; 914 spa_t *spa = vd->vdev_spa; 915 space_map_t *sm = msp->ms_sm; 916 char freebuf[32]; 917 918 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf, 919 sizeof (freebuf)); 920 921 (void) printf( 922 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", 923 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start, 924 (u_longlong_t)space_map_object(sm), freebuf); 925 926 if (dump_opt['m'] > 2 && !dump_opt['L']) { 927 mutex_enter(&msp->ms_lock); 928 VERIFY0(metaslab_load(msp)); 929 range_tree_stat_verify(msp->ms_allocatable); 930 dump_metaslab_stats(msp); 931 metaslab_unload(msp); 932 mutex_exit(&msp->ms_lock); 933 } 934 935 if (dump_opt['m'] > 1 && sm != NULL && 936 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) { 937 /* 938 * The space map histogram represents free space in chunks 939 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift). 940 */ 941 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n", 942 (u_longlong_t)msp->ms_fragmentation); 943 dump_histogram(sm->sm_phys->smp_histogram, 944 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift); 945 } 946 947 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift)); 948 dump_spacemap(spa->spa_meta_objset, msp->ms_sm); 949 950 if (spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP)) { 951 (void) printf("\tFlush data:\n\tunflushed txg=%llu\n\n", 952 (u_longlong_t)metaslab_unflushed_txg(msp)); 953 } 954 } 955 956 static void 957 print_vdev_metaslab_header(vdev_t *vd) 958 { 959 vdev_alloc_bias_t alloc_bias = vd->vdev_alloc_bias; 960 const char *bias_str = ""; 961 962 if (alloc_bias == VDEV_BIAS_LOG || vd->vdev_islog) { 963 bias_str = VDEV_ALLOC_BIAS_LOG; 964 } else if (alloc_bias == VDEV_BIAS_SPECIAL) { 965 bias_str = VDEV_ALLOC_BIAS_SPECIAL; 966 } else if (alloc_bias == VDEV_BIAS_DEDUP) { 967 bias_str = VDEV_ALLOC_BIAS_DEDUP; 968 } 969 970 uint64_t ms_flush_data_obj = 0; 971 if (vd->vdev_top_zap != 0) { 972 int error = zap_lookup(spa_meta_objset(vd->vdev_spa), 973 vd->vdev_top_zap, VDEV_TOP_ZAP_MS_UNFLUSHED_PHYS_TXGS, 974 sizeof (uint64_t), 1, &ms_flush_data_obj); 975 if (error != ENOENT) { 976 ASSERT0(error); 977 } 978 } 979 980 (void) printf("\tvdev %10llu %s", 981 (u_longlong_t)vd->vdev_id, bias_str); 982 983 if (ms_flush_data_obj != 0) { 984 (void) printf(" ms_unflushed_phys object %llu", 985 (u_longlong_t)ms_flush_data_obj); 986 } 987 988 (void) printf("\n\t%-10s%5llu %-19s %-15s %-12s\n", 989 "metaslabs", (u_longlong_t)vd->vdev_ms_count, 990 "offset", "spacemap", "free"); 991 (void) printf("\t%15s %19s %15s %12s\n", 992 "---------------", "-------------------", 993 "---------------", "------------"); 994 } 995 996 static void 997 dump_metaslab_groups(spa_t *spa) 998 { 999 vdev_t *rvd = spa->spa_root_vdev; 1000 metaslab_class_t *mc = spa_normal_class(spa); 1001 uint64_t fragmentation; 1002 1003 metaslab_class_histogram_verify(mc); 1004 1005 for (unsigned c = 0; c < rvd->vdev_children; c++) { 1006 vdev_t *tvd = rvd->vdev_child[c]; 1007 metaslab_group_t *mg = tvd->vdev_mg; 1008 1009 if (mg == NULL || mg->mg_class != mc) 1010 continue; 1011 1012 metaslab_group_histogram_verify(mg); 1013 mg->mg_fragmentation = metaslab_group_fragmentation(mg); 1014 1015 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t" 1016 "fragmentation", 1017 (u_longlong_t)tvd->vdev_id, 1018 (u_longlong_t)tvd->vdev_ms_count); 1019 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) { 1020 (void) printf("%3s\n", "-"); 1021 } else { 1022 (void) printf("%3llu%%\n", 1023 (u_longlong_t)mg->mg_fragmentation); 1024 } 1025 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 1026 } 1027 1028 (void) printf("\tpool %s\tfragmentation", spa_name(spa)); 1029 fragmentation = metaslab_class_fragmentation(mc); 1030 if (fragmentation == ZFS_FRAG_INVALID) 1031 (void) printf("\t%3s\n", "-"); 1032 else 1033 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation); 1034 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 1035 } 1036 1037 static void 1038 print_vdev_indirect(vdev_t *vd) 1039 { 1040 vdev_indirect_config_t *vic = &vd->vdev_indirect_config; 1041 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 1042 vdev_indirect_births_t *vib = vd->vdev_indirect_births; 1043 1044 if (vim == NULL) { 1045 ASSERT3P(vib, ==, NULL); 1046 return; 1047 } 1048 1049 ASSERT3U(vdev_indirect_mapping_object(vim), ==, 1050 vic->vic_mapping_object); 1051 ASSERT3U(vdev_indirect_births_object(vib), ==, 1052 vic->vic_births_object); 1053 1054 (void) printf("indirect births obj %llu:\n", 1055 (longlong_t)vic->vic_births_object); 1056 (void) printf(" vib_count = %llu\n", 1057 (longlong_t)vdev_indirect_births_count(vib)); 1058 for (uint64_t i = 0; i < vdev_indirect_births_count(vib); i++) { 1059 vdev_indirect_birth_entry_phys_t *cur_vibe = 1060 &vib->vib_entries[i]; 1061 (void) printf("\toffset %llx -> txg %llu\n", 1062 (longlong_t)cur_vibe->vibe_offset, 1063 (longlong_t)cur_vibe->vibe_phys_birth_txg); 1064 } 1065 (void) printf("\n"); 1066 1067 (void) printf("indirect mapping obj %llu:\n", 1068 (longlong_t)vic->vic_mapping_object); 1069 (void) printf(" vim_max_offset = 0x%llx\n", 1070 (longlong_t)vdev_indirect_mapping_max_offset(vim)); 1071 (void) printf(" vim_bytes_mapped = 0x%llx\n", 1072 (longlong_t)vdev_indirect_mapping_bytes_mapped(vim)); 1073 (void) printf(" vim_count = %llu\n", 1074 (longlong_t)vdev_indirect_mapping_num_entries(vim)); 1075 1076 if (dump_opt['d'] <= 5 && dump_opt['m'] <= 3) 1077 return; 1078 1079 uint32_t *counts = vdev_indirect_mapping_load_obsolete_counts(vim); 1080 1081 for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) { 1082 vdev_indirect_mapping_entry_phys_t *vimep = 1083 &vim->vim_entries[i]; 1084 (void) printf("\t<%llx:%llx:%llx> -> " 1085 "<%llx:%llx:%llx> (%x obsolete)\n", 1086 (longlong_t)vd->vdev_id, 1087 (longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep), 1088 (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst), 1089 (longlong_t)DVA_GET_VDEV(&vimep->vimep_dst), 1090 (longlong_t)DVA_GET_OFFSET(&vimep->vimep_dst), 1091 (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst), 1092 counts[i]); 1093 } 1094 (void) printf("\n"); 1095 1096 uint64_t obsolete_sm_object = vdev_obsolete_sm_object(vd); 1097 if (obsolete_sm_object != 0) { 1098 objset_t *mos = vd->vdev_spa->spa_meta_objset; 1099 (void) printf("obsolete space map object %llu:\n", 1100 (u_longlong_t)obsolete_sm_object); 1101 ASSERT(vd->vdev_obsolete_sm != NULL); 1102 ASSERT3U(space_map_object(vd->vdev_obsolete_sm), ==, 1103 obsolete_sm_object); 1104 dump_spacemap(mos, vd->vdev_obsolete_sm); 1105 (void) printf("\n"); 1106 } 1107 } 1108 1109 static void 1110 dump_metaslabs(spa_t *spa) 1111 { 1112 vdev_t *vd, *rvd = spa->spa_root_vdev; 1113 uint64_t m, c = 0, children = rvd->vdev_children; 1114 1115 (void) printf("\nMetaslabs:\n"); 1116 1117 if (!dump_opt['d'] && zopt_objects > 0) { 1118 c = zopt_object[0]; 1119 1120 if (c >= children) 1121 (void) fatal("bad vdev id: %llu", (u_longlong_t)c); 1122 1123 if (zopt_objects > 1) { 1124 vd = rvd->vdev_child[c]; 1125 print_vdev_metaslab_header(vd); 1126 1127 for (m = 1; m < zopt_objects; m++) { 1128 if (zopt_object[m] < vd->vdev_ms_count) 1129 dump_metaslab( 1130 vd->vdev_ms[zopt_object[m]]); 1131 else 1132 (void) fprintf(stderr, "bad metaslab " 1133 "number %llu\n", 1134 (u_longlong_t)zopt_object[m]); 1135 } 1136 (void) printf("\n"); 1137 return; 1138 } 1139 children = c + 1; 1140 } 1141 for (; c < children; c++) { 1142 vd = rvd->vdev_child[c]; 1143 print_vdev_metaslab_header(vd); 1144 1145 print_vdev_indirect(vd); 1146 1147 for (m = 0; m < vd->vdev_ms_count; m++) 1148 dump_metaslab(vd->vdev_ms[m]); 1149 (void) printf("\n"); 1150 } 1151 } 1152 1153 static void 1154 dump_log_spacemaps(spa_t *spa) 1155 { 1156 if (!spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP)) 1157 return; 1158 1159 (void) printf("\nLog Space Maps in Pool:\n"); 1160 for (spa_log_sm_t *sls = avl_first(&spa->spa_sm_logs_by_txg); 1161 sls; sls = AVL_NEXT(&spa->spa_sm_logs_by_txg, sls)) { 1162 space_map_t *sm = NULL; 1163 VERIFY0(space_map_open(&sm, spa_meta_objset(spa), 1164 sls->sls_sm_obj, 0, UINT64_MAX, SPA_MINBLOCKSHIFT)); 1165 1166 (void) printf("Log Spacemap object %llu txg %llu\n", 1167 (u_longlong_t)sls->sls_sm_obj, (u_longlong_t)sls->sls_txg); 1168 dump_spacemap(spa->spa_meta_objset, sm); 1169 space_map_close(sm); 1170 } 1171 (void) printf("\n"); 1172 } 1173 1174 static void 1175 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) 1176 { 1177 const ddt_phys_t *ddp = dde->dde_phys; 1178 const ddt_key_t *ddk = &dde->dde_key; 1179 const char *types[4] = { "ditto", "single", "double", "triple" }; 1180 char blkbuf[BP_SPRINTF_LEN]; 1181 blkptr_t blk; 1182 1183 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 1184 if (ddp->ddp_phys_birth == 0) 1185 continue; 1186 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); 1187 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk); 1188 (void) printf("index %llx refcnt %llu %s %s\n", 1189 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, 1190 types[p], blkbuf); 1191 } 1192 } 1193 1194 static void 1195 dump_dedup_ratio(const ddt_stat_t *dds) 1196 { 1197 double rL, rP, rD, D, dedup, compress, copies; 1198 1199 if (dds->dds_blocks == 0) 1200 return; 1201 1202 rL = (double)dds->dds_ref_lsize; 1203 rP = (double)dds->dds_ref_psize; 1204 rD = (double)dds->dds_ref_dsize; 1205 D = (double)dds->dds_dsize; 1206 1207 dedup = rD / D; 1208 compress = rL / rP; 1209 copies = rD / rP; 1210 1211 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " 1212 "dedup * compress / copies = %.2f\n\n", 1213 dedup, compress, copies, dedup * compress / copies); 1214 } 1215 1216 static void 1217 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class) 1218 { 1219 char name[DDT_NAMELEN]; 1220 ddt_entry_t dde; 1221 uint64_t walk = 0; 1222 dmu_object_info_t doi; 1223 uint64_t count, dspace, mspace; 1224 int error; 1225 1226 error = ddt_object_info(ddt, type, class, &doi); 1227 1228 if (error == ENOENT) 1229 return; 1230 ASSERT(error == 0); 1231 1232 if ((count = ddt_object_count(ddt, type, class)) == 0) 1233 return; 1234 1235 dspace = doi.doi_physical_blocks_512 << 9; 1236 mspace = doi.doi_fill_count * doi.doi_data_block_size; 1237 1238 ddt_object_name(ddt, type, class, name); 1239 1240 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n", 1241 name, 1242 (u_longlong_t)count, 1243 (u_longlong_t)(dspace / count), 1244 (u_longlong_t)(mspace / count)); 1245 1246 if (dump_opt['D'] < 3) 1247 return; 1248 1249 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]); 1250 1251 if (dump_opt['D'] < 4) 1252 return; 1253 1254 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE) 1255 return; 1256 1257 (void) printf("%s contents:\n\n", name); 1258 1259 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0) 1260 dump_dde(ddt, &dde, walk); 1261 1262 ASSERT3U(error, ==, ENOENT); 1263 1264 (void) printf("\n"); 1265 } 1266 1267 static void 1268 dump_all_ddts(spa_t *spa) 1269 { 1270 ddt_histogram_t ddh_total; 1271 ddt_stat_t dds_total; 1272 1273 bzero(&ddh_total, sizeof (ddh_total)); 1274 bzero(&dds_total, sizeof (dds_total)); 1275 1276 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { 1277 ddt_t *ddt = spa->spa_ddt[c]; 1278 for (enum ddt_type type = 0; type < DDT_TYPES; type++) { 1279 for (enum ddt_class class = 0; class < DDT_CLASSES; 1280 class++) { 1281 dump_ddt(ddt, type, class); 1282 } 1283 } 1284 } 1285 1286 ddt_get_dedup_stats(spa, &dds_total); 1287 1288 if (dds_total.dds_blocks == 0) { 1289 (void) printf("All DDTs are empty\n"); 1290 return; 1291 } 1292 1293 (void) printf("\n"); 1294 1295 if (dump_opt['D'] > 1) { 1296 (void) printf("DDT histogram (aggregated over all DDTs):\n"); 1297 ddt_get_dedup_histogram(spa, &ddh_total); 1298 zpool_dump_ddt(&dds_total, &ddh_total); 1299 } 1300 1301 dump_dedup_ratio(&dds_total); 1302 } 1303 1304 static void 1305 dump_dtl_seg(void *arg, uint64_t start, uint64_t size) 1306 { 1307 char *prefix = arg; 1308 1309 (void) printf("%s [%llu,%llu) length %llu\n", 1310 prefix, 1311 (u_longlong_t)start, 1312 (u_longlong_t)(start + size), 1313 (u_longlong_t)(size)); 1314 } 1315 1316 static void 1317 dump_dtl(vdev_t *vd, int indent) 1318 { 1319 spa_t *spa = vd->vdev_spa; 1320 boolean_t required; 1321 const char *name[DTL_TYPES] = { "missing", "partial", "scrub", 1322 "outage" }; 1323 char prefix[256]; 1324 1325 spa_vdev_state_enter(spa, SCL_NONE); 1326 required = vdev_dtl_required(vd); 1327 (void) spa_vdev_state_exit(spa, NULL, 0); 1328 1329 if (indent == 0) 1330 (void) printf("\nDirty time logs:\n\n"); 1331 1332 (void) printf("\t%*s%s [%s]\n", indent, "", 1333 vd->vdev_path ? vd->vdev_path : 1334 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 1335 required ? "DTL-required" : "DTL-expendable"); 1336 1337 for (int t = 0; t < DTL_TYPES; t++) { 1338 range_tree_t *rt = vd->vdev_dtl[t]; 1339 if (range_tree_space(rt) == 0) 1340 continue; 1341 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 1342 indent + 2, "", name[t]); 1343 range_tree_walk(rt, dump_dtl_seg, prefix); 1344 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 1345 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm); 1346 } 1347 1348 for (unsigned c = 0; c < vd->vdev_children; c++) 1349 dump_dtl(vd->vdev_child[c], indent + 4); 1350 } 1351 1352 static void 1353 dump_history(spa_t *spa) 1354 { 1355 nvlist_t **events = NULL; 1356 uint64_t resid, len, off = 0; 1357 uint_t num = 0; 1358 int error; 1359 char tbuf[30]; 1360 1361 char *buf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 1362 do { 1363 len = SPA_MAXBLOCKSIZE; 1364 1365 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 1366 (void) fprintf(stderr, "Unable to read history: " 1367 "error %d\n", error); 1368 umem_free(buf, SPA_MAXBLOCKSIZE); 1369 return; 1370 } 1371 1372 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 1373 break; 1374 1375 off -= resid; 1376 } while (len != 0); 1377 umem_free(buf, SPA_MAXBLOCKSIZE); 1378 1379 (void) printf("\nHistory:\n"); 1380 for (unsigned i = 0; i < num; i++) { 1381 boolean_t printed = B_FALSE; 1382 1383 if (nvlist_exists(events[i], ZPOOL_HIST_TIME)) { 1384 time_t tsec; 1385 struct tm t; 1386 1387 tsec = fnvlist_lookup_uint64(events[i], 1388 ZPOOL_HIST_TIME); 1389 (void) localtime_r(&tsec, &t); 1390 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 1391 } else { 1392 tbuf[0] = '\0'; 1393 } 1394 1395 if (nvlist_exists(events[i], ZPOOL_HIST_CMD)) { 1396 (void) printf("%s %s\n", tbuf, 1397 fnvlist_lookup_string(events[i], ZPOOL_HIST_CMD)); 1398 } else if (nvlist_exists(events[i], ZPOOL_HIST_INT_EVENT)) { 1399 uint64_t ievent; 1400 1401 ievent = fnvlist_lookup_uint64(events[i], 1402 ZPOOL_HIST_INT_EVENT); 1403 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 1404 goto next; 1405 1406 (void) printf(" %s [internal %s txg:%ju] %s\n", 1407 tbuf, 1408 zfs_history_event_names[ievent], 1409 fnvlist_lookup_uint64(events[i], 1410 ZPOOL_HIST_TXG), 1411 fnvlist_lookup_string(events[i], 1412 ZPOOL_HIST_INT_STR)); 1413 } else if (nvlist_exists(events[i], ZPOOL_HIST_INT_NAME)) { 1414 (void) printf("%s [txg:%ju] %s", tbuf, 1415 fnvlist_lookup_uint64(events[i], 1416 ZPOOL_HIST_TXG), 1417 fnvlist_lookup_string(events[i], 1418 ZPOOL_HIST_INT_NAME)); 1419 1420 if (nvlist_exists(events[i], ZPOOL_HIST_DSNAME)) { 1421 (void) printf(" %s (%llu)", 1422 fnvlist_lookup_string(events[i], 1423 ZPOOL_HIST_DSNAME), 1424 (u_longlong_t)fnvlist_lookup_uint64( 1425 events[i], 1426 ZPOOL_HIST_DSID)); 1427 } 1428 1429 (void) printf(" %s\n", fnvlist_lookup_string(events[i], 1430 ZPOOL_HIST_INT_STR)); 1431 } else if (nvlist_exists(events[i], ZPOOL_HIST_IOCTL)) { 1432 (void) printf("%s ioctl %s\n", tbuf, 1433 fnvlist_lookup_string(events[i], 1434 ZPOOL_HIST_IOCTL)); 1435 1436 if (nvlist_exists(events[i], ZPOOL_HIST_INPUT_NVL)) { 1437 (void) printf(" input:\n"); 1438 dump_nvlist(fnvlist_lookup_nvlist(events[i], 1439 ZPOOL_HIST_INPUT_NVL), 8); 1440 } 1441 if (nvlist_exists(events[i], ZPOOL_HIST_OUTPUT_NVL)) { 1442 (void) printf(" output:\n"); 1443 dump_nvlist(fnvlist_lookup_nvlist(events[i], 1444 ZPOOL_HIST_OUTPUT_NVL), 8); 1445 } 1446 if (nvlist_exists(events[i], ZPOOL_HIST_ERRNO)) { 1447 (void) printf(" errno: %lld\n", 1448 (longlong_t)fnvlist_lookup_int64(events[i], 1449 ZPOOL_HIST_ERRNO)); 1450 } 1451 } else { 1452 goto next; 1453 } 1454 1455 printed = B_TRUE; 1456 next: 1457 if (dump_opt['h'] > 1) { 1458 if (!printed) 1459 (void) printf("unrecognized record:\n"); 1460 dump_nvlist(events[i], 2); 1461 } 1462 } 1463 } 1464 1465 /*ARGSUSED*/ 1466 static void 1467 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 1468 { 1469 } 1470 1471 static uint64_t 1472 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, 1473 const zbookmark_phys_t *zb) 1474 { 1475 if (dnp == NULL) { 1476 ASSERT(zb->zb_level < 0); 1477 if (zb->zb_object == 0) 1478 return (zb->zb_blkid); 1479 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 1480 } 1481 1482 ASSERT(zb->zb_level >= 0); 1483 1484 return ((zb->zb_blkid << 1485 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 1486 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 1487 } 1488 1489 static void 1490 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp) 1491 { 1492 const dva_t *dva = bp->blk_dva; 1493 unsigned int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 1494 1495 if (dump_opt['b'] >= 6) { 1496 snprintf_blkptr(blkbuf, buflen, bp); 1497 return; 1498 } 1499 1500 if (BP_IS_EMBEDDED(bp)) { 1501 (void) sprintf(blkbuf, 1502 "EMBEDDED et=%u %llxL/%llxP B=%llu", 1503 (int)BPE_GET_ETYPE(bp), 1504 (u_longlong_t)BPE_GET_LSIZE(bp), 1505 (u_longlong_t)BPE_GET_PSIZE(bp), 1506 (u_longlong_t)bp->blk_birth); 1507 return; 1508 } 1509 1510 blkbuf[0] = '\0'; 1511 for (unsigned int i = 0; i < ndvas; i++) 1512 (void) snprintf(blkbuf + strlen(blkbuf), 1513 buflen - strlen(blkbuf), "%llu:%llx:%llx ", 1514 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 1515 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 1516 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 1517 1518 if (BP_IS_HOLE(bp)) { 1519 (void) snprintf(blkbuf + strlen(blkbuf), 1520 buflen - strlen(blkbuf), 1521 "%llxL B=%llu", 1522 (u_longlong_t)BP_GET_LSIZE(bp), 1523 (u_longlong_t)bp->blk_birth); 1524 } else { 1525 (void) snprintf(blkbuf + strlen(blkbuf), 1526 buflen - strlen(blkbuf), 1527 "%llxL/%llxP F=%llu B=%llu/%llu", 1528 (u_longlong_t)BP_GET_LSIZE(bp), 1529 (u_longlong_t)BP_GET_PSIZE(bp), 1530 (u_longlong_t)BP_GET_FILL(bp), 1531 (u_longlong_t)bp->blk_birth, 1532 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 1533 } 1534 } 1535 1536 static void 1537 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb, 1538 const dnode_phys_t *dnp) 1539 { 1540 char blkbuf[BP_SPRINTF_LEN]; 1541 int l; 1542 1543 if (!BP_IS_EMBEDDED(bp)) { 1544 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 1545 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 1546 } 1547 1548 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 1549 1550 ASSERT(zb->zb_level >= 0); 1551 1552 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 1553 if (l == zb->zb_level) { 1554 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 1555 } else { 1556 (void) printf(" "); 1557 } 1558 } 1559 1560 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1561 (void) printf("%s\n", blkbuf); 1562 } 1563 1564 static int 1565 visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 1566 blkptr_t *bp, const zbookmark_phys_t *zb) 1567 { 1568 int err = 0; 1569 1570 if (bp->blk_birth == 0) 1571 return (0); 1572 1573 print_indirect(bp, zb, dnp); 1574 1575 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) { 1576 arc_flags_t flags = ARC_FLAG_WAIT; 1577 int i; 1578 blkptr_t *cbp; 1579 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 1580 arc_buf_t *buf; 1581 uint64_t fill = 0; 1582 1583 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 1584 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 1585 if (err) 1586 return (err); 1587 ASSERT(buf->b_data); 1588 1589 /* recursively visit blocks below this */ 1590 cbp = buf->b_data; 1591 for (i = 0; i < epb; i++, cbp++) { 1592 zbookmark_phys_t czb; 1593 1594 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 1595 zb->zb_level - 1, 1596 zb->zb_blkid * epb + i); 1597 err = visit_indirect(spa, dnp, cbp, &czb); 1598 if (err) 1599 break; 1600 fill += BP_GET_FILL(cbp); 1601 } 1602 if (!err) 1603 ASSERT3U(fill, ==, BP_GET_FILL(bp)); 1604 arc_buf_destroy(buf, &buf); 1605 } 1606 1607 return (err); 1608 } 1609 1610 /*ARGSUSED*/ 1611 static void 1612 dump_indirect(dnode_t *dn) 1613 { 1614 dnode_phys_t *dnp = dn->dn_phys; 1615 int j; 1616 zbookmark_phys_t czb; 1617 1618 (void) printf("Indirect blocks:\n"); 1619 1620 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 1621 dn->dn_object, dnp->dn_nlevels - 1, 0); 1622 for (j = 0; j < dnp->dn_nblkptr; j++) { 1623 czb.zb_blkid = j; 1624 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 1625 &dnp->dn_blkptr[j], &czb); 1626 } 1627 1628 (void) printf("\n"); 1629 } 1630 1631 /*ARGSUSED*/ 1632 static void 1633 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 1634 { 1635 dsl_dir_phys_t *dd = data; 1636 time_t crtime; 1637 char nice[32]; 1638 1639 /* make sure nicenum has enough space */ 1640 CTASSERT(sizeof (nice) >= NN_NUMBUF_SZ); 1641 1642 if (dd == NULL) 1643 return; 1644 1645 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 1646 1647 crtime = dd->dd_creation_time; 1648 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1649 (void) printf("\t\thead_dataset_obj = %llu\n", 1650 (u_longlong_t)dd->dd_head_dataset_obj); 1651 (void) printf("\t\tparent_dir_obj = %llu\n", 1652 (u_longlong_t)dd->dd_parent_obj); 1653 (void) printf("\t\torigin_obj = %llu\n", 1654 (u_longlong_t)dd->dd_origin_obj); 1655 (void) printf("\t\tchild_dir_zapobj = %llu\n", 1656 (u_longlong_t)dd->dd_child_dir_zapobj); 1657 zdb_nicenum(dd->dd_used_bytes, nice, sizeof (nice)); 1658 (void) printf("\t\tused_bytes = %s\n", nice); 1659 zdb_nicenum(dd->dd_compressed_bytes, nice, sizeof (nice)); 1660 (void) printf("\t\tcompressed_bytes = %s\n", nice); 1661 zdb_nicenum(dd->dd_uncompressed_bytes, nice, sizeof (nice)); 1662 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 1663 zdb_nicenum(dd->dd_quota, nice, sizeof (nice)); 1664 (void) printf("\t\tquota = %s\n", nice); 1665 zdb_nicenum(dd->dd_reserved, nice, sizeof (nice)); 1666 (void) printf("\t\treserved = %s\n", nice); 1667 (void) printf("\t\tprops_zapobj = %llu\n", 1668 (u_longlong_t)dd->dd_props_zapobj); 1669 (void) printf("\t\tdeleg_zapobj = %llu\n", 1670 (u_longlong_t)dd->dd_deleg_zapobj); 1671 (void) printf("\t\tflags = %llx\n", 1672 (u_longlong_t)dd->dd_flags); 1673 1674 #define DO(which) \ 1675 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice, \ 1676 sizeof (nice)); \ 1677 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 1678 DO(HEAD); 1679 DO(SNAP); 1680 DO(CHILD); 1681 DO(CHILD_RSRV); 1682 DO(REFRSRV); 1683 #undef DO 1684 (void) printf("\t\tclones = %llu\n", 1685 (u_longlong_t)dd->dd_clones); 1686 } 1687 1688 /*ARGSUSED*/ 1689 static void 1690 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 1691 { 1692 dsl_dataset_phys_t *ds = data; 1693 time_t crtime; 1694 char used[32], compressed[32], uncompressed[32], unique[32]; 1695 char blkbuf[BP_SPRINTF_LEN]; 1696 1697 /* make sure nicenum has enough space */ 1698 CTASSERT(sizeof (used) >= NN_NUMBUF_SZ); 1699 CTASSERT(sizeof (compressed) >= NN_NUMBUF_SZ); 1700 CTASSERT(sizeof (uncompressed) >= NN_NUMBUF_SZ); 1701 CTASSERT(sizeof (unique) >= NN_NUMBUF_SZ); 1702 1703 if (ds == NULL) 1704 return; 1705 1706 ASSERT(size == sizeof (*ds)); 1707 crtime = ds->ds_creation_time; 1708 zdb_nicenum(ds->ds_referenced_bytes, used, sizeof (used)); 1709 zdb_nicenum(ds->ds_compressed_bytes, compressed, sizeof (compressed)); 1710 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed, 1711 sizeof (uncompressed)); 1712 zdb_nicenum(ds->ds_unique_bytes, unique, sizeof (unique)); 1713 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp); 1714 1715 (void) printf("\t\tdir_obj = %llu\n", 1716 (u_longlong_t)ds->ds_dir_obj); 1717 (void) printf("\t\tprev_snap_obj = %llu\n", 1718 (u_longlong_t)ds->ds_prev_snap_obj); 1719 (void) printf("\t\tprev_snap_txg = %llu\n", 1720 (u_longlong_t)ds->ds_prev_snap_txg); 1721 (void) printf("\t\tnext_snap_obj = %llu\n", 1722 (u_longlong_t)ds->ds_next_snap_obj); 1723 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1724 (u_longlong_t)ds->ds_snapnames_zapobj); 1725 (void) printf("\t\tnum_children = %llu\n", 1726 (u_longlong_t)ds->ds_num_children); 1727 (void) printf("\t\tuserrefs_obj = %llu\n", 1728 (u_longlong_t)ds->ds_userrefs_obj); 1729 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1730 (void) printf("\t\tcreation_txg = %llu\n", 1731 (u_longlong_t)ds->ds_creation_txg); 1732 (void) printf("\t\tdeadlist_obj = %llu\n", 1733 (u_longlong_t)ds->ds_deadlist_obj); 1734 (void) printf("\t\tused_bytes = %s\n", used); 1735 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1736 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1737 (void) printf("\t\tunique = %s\n", unique); 1738 (void) printf("\t\tfsid_guid = %llu\n", 1739 (u_longlong_t)ds->ds_fsid_guid); 1740 (void) printf("\t\tguid = %llu\n", 1741 (u_longlong_t)ds->ds_guid); 1742 (void) printf("\t\tflags = %llx\n", 1743 (u_longlong_t)ds->ds_flags); 1744 (void) printf("\t\tnext_clones_obj = %llu\n", 1745 (u_longlong_t)ds->ds_next_clones_obj); 1746 (void) printf("\t\tprops_obj = %llu\n", 1747 (u_longlong_t)ds->ds_props_obj); 1748 (void) printf("\t\tbp = %s\n", blkbuf); 1749 } 1750 1751 /* ARGSUSED */ 1752 static int 1753 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1754 { 1755 char blkbuf[BP_SPRINTF_LEN]; 1756 1757 if (bp->blk_birth != 0) { 1758 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 1759 (void) printf("\t%s\n", blkbuf); 1760 } 1761 return (0); 1762 } 1763 1764 static void 1765 dump_bptree(objset_t *os, uint64_t obj, const char *name) 1766 { 1767 char bytes[32]; 1768 bptree_phys_t *bt; 1769 dmu_buf_t *db; 1770 1771 /* make sure nicenum has enough space */ 1772 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 1773 1774 if (dump_opt['d'] < 3) 1775 return; 1776 1777 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 1778 bt = db->db_data; 1779 zdb_nicenum(bt->bt_bytes, bytes, sizeof (bytes)); 1780 (void) printf("\n %s: %llu datasets, %s\n", 1781 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 1782 dmu_buf_rele(db, FTAG); 1783 1784 if (dump_opt['d'] < 5) 1785 return; 1786 1787 (void) printf("\n"); 1788 1789 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 1790 } 1791 1792 /* ARGSUSED */ 1793 static int 1794 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1795 { 1796 char blkbuf[BP_SPRINTF_LEN]; 1797 1798 ASSERT(bp->blk_birth != 0); 1799 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1800 (void) printf("\t%s\n", blkbuf); 1801 return (0); 1802 } 1803 1804 static void 1805 dump_full_bpobj(bpobj_t *bpo, const char *name, int indent) 1806 { 1807 char bytes[32]; 1808 char comp[32]; 1809 char uncomp[32]; 1810 1811 /* make sure nicenum has enough space */ 1812 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 1813 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ); 1814 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ); 1815 1816 if (dump_opt['d'] < 3) 1817 return; 1818 1819 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes, sizeof (bytes)); 1820 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1821 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp, sizeof (comp)); 1822 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp, sizeof (uncomp)); 1823 (void) printf(" %*s: object %llu, %llu local blkptrs, " 1824 "%llu subobjs in object %llu, %s (%s/%s comp)\n", 1825 indent * 8, name, 1826 (u_longlong_t)bpo->bpo_object, 1827 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1828 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 1829 (u_longlong_t)bpo->bpo_phys->bpo_subobjs, 1830 bytes, comp, uncomp); 1831 1832 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1833 uint64_t subobj; 1834 bpobj_t subbpo; 1835 int error; 1836 VERIFY0(dmu_read(bpo->bpo_os, 1837 bpo->bpo_phys->bpo_subobjs, 1838 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1839 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1840 if (error != 0) { 1841 (void) printf("ERROR %u while trying to open " 1842 "subobj id %llu\n", 1843 error, (u_longlong_t)subobj); 1844 continue; 1845 } 1846 dump_full_bpobj(&subbpo, "subobj", indent + 1); 1847 bpobj_close(&subbpo); 1848 } 1849 } else { 1850 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", 1851 indent * 8, name, 1852 (u_longlong_t)bpo->bpo_object, 1853 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1854 bytes); 1855 } 1856 1857 if (dump_opt['d'] < 5) 1858 return; 1859 1860 1861 if (indent == 0) { 1862 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 1863 (void) printf("\n"); 1864 } 1865 } 1866 1867 static void 1868 bpobj_count_refd(bpobj_t *bpo) 1869 { 1870 mos_obj_refd(bpo->bpo_object); 1871 1872 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1873 mos_obj_refd(bpo->bpo_phys->bpo_subobjs); 1874 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1875 uint64_t subobj; 1876 bpobj_t subbpo; 1877 int error; 1878 VERIFY0(dmu_read(bpo->bpo_os, 1879 bpo->bpo_phys->bpo_subobjs, 1880 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1881 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1882 if (error != 0) { 1883 (void) printf("ERROR %u while trying to open " 1884 "subobj id %llu\n", 1885 error, (u_longlong_t)subobj); 1886 continue; 1887 } 1888 bpobj_count_refd(&subbpo); 1889 bpobj_close(&subbpo); 1890 } 1891 } 1892 } 1893 1894 static void 1895 dump_deadlist(dsl_deadlist_t *dl) 1896 { 1897 dsl_deadlist_entry_t *dle; 1898 uint64_t unused; 1899 char bytes[32]; 1900 char comp[32]; 1901 char uncomp[32]; 1902 uint64_t empty_bpobj = 1903 dmu_objset_spa(dl->dl_os)->spa_dsl_pool->dp_empty_bpobj; 1904 1905 /* force the tree to be loaded */ 1906 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); 1907 1908 if (dl->dl_oldfmt) { 1909 if (dl->dl_bpobj.bpo_object != empty_bpobj) 1910 bpobj_count_refd(&dl->dl_bpobj); 1911 } else { 1912 mos_obj_refd(dl->dl_object); 1913 for (dle = avl_first(&dl->dl_tree); dle; 1914 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1915 if (dle->dle_bpobj.bpo_object != empty_bpobj) 1916 bpobj_count_refd(&dle->dle_bpobj); 1917 } 1918 } 1919 1920 /* make sure nicenum has enough space */ 1921 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 1922 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ); 1923 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ); 1924 1925 if (dump_opt['d'] < 3) 1926 return; 1927 1928 if (dl->dl_oldfmt) { 1929 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0); 1930 return; 1931 } 1932 1933 zdb_nicenum(dl->dl_phys->dl_used, bytes, sizeof (bytes)); 1934 zdb_nicenum(dl->dl_phys->dl_comp, comp, sizeof (comp)); 1935 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp, sizeof (uncomp)); 1936 (void) printf("\n Deadlist: %s (%s/%s comp)\n", 1937 bytes, comp, uncomp); 1938 1939 if (dump_opt['d'] < 4) 1940 return; 1941 1942 (void) printf("\n"); 1943 1944 for (dle = avl_first(&dl->dl_tree); dle; 1945 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1946 if (dump_opt['d'] >= 5) { 1947 char buf[128]; 1948 (void) snprintf(buf, sizeof (buf), 1949 "mintxg %llu -> obj %llu", 1950 (longlong_t)dle->dle_mintxg, 1951 (longlong_t)dle->dle_bpobj.bpo_object); 1952 1953 dump_full_bpobj(&dle->dle_bpobj, buf, 0); 1954 } else { 1955 (void) printf("mintxg %llu -> obj %llu\n", 1956 (longlong_t)dle->dle_mintxg, 1957 (longlong_t)dle->dle_bpobj.bpo_object); 1958 } 1959 } 1960 } 1961 1962 static avl_tree_t idx_tree; 1963 static avl_tree_t domain_tree; 1964 static boolean_t fuid_table_loaded; 1965 static objset_t *sa_os = NULL; 1966 static sa_attr_type_t *sa_attr_table = NULL; 1967 1968 static int 1969 open_objset(const char *path, dmu_objset_type_t type, void *tag, objset_t **osp) 1970 { 1971 int err; 1972 uint64_t sa_attrs = 0; 1973 uint64_t version = 0; 1974 1975 VERIFY3P(sa_os, ==, NULL); 1976 err = dmu_objset_own(path, type, B_TRUE, B_FALSE, tag, osp); 1977 if (err != 0) { 1978 (void) fprintf(stderr, "failed to own dataset '%s': %s\n", path, 1979 strerror(err)); 1980 return (err); 1981 } 1982 1983 if (dmu_objset_type(*osp) == DMU_OST_ZFS && !(*osp)->os_encrypted) { 1984 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZPL_VERSION_STR, 1985 8, 1, &version); 1986 if (version >= ZPL_VERSION_SA) { 1987 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 1988 8, 1, &sa_attrs); 1989 } 1990 err = sa_setup(*osp, sa_attrs, zfs_attr_table, ZPL_END, 1991 &sa_attr_table); 1992 if (err != 0) { 1993 (void) fprintf(stderr, "sa_setup failed: %s\n", 1994 strerror(err)); 1995 dmu_objset_disown(*osp, B_FALSE, tag); 1996 *osp = NULL; 1997 } 1998 } 1999 sa_os = *osp; 2000 2001 return (0); 2002 } 2003 2004 static void 2005 close_objset(objset_t *os, void *tag) 2006 { 2007 VERIFY3P(os, ==, sa_os); 2008 if (os->os_sa != NULL) 2009 sa_tear_down(os); 2010 dmu_objset_disown(os, B_FALSE, tag); 2011 sa_attr_table = NULL; 2012 sa_os = NULL; 2013 } 2014 2015 static void 2016 fuid_table_destroy() 2017 { 2018 if (fuid_table_loaded) { 2019 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 2020 fuid_table_loaded = B_FALSE; 2021 } 2022 } 2023 2024 /* 2025 * print uid or gid information. 2026 * For normal POSIX id just the id is printed in decimal format. 2027 * For CIFS files with FUID the fuid is printed in hex followed by 2028 * the domain-rid string. 2029 */ 2030 static void 2031 print_idstr(uint64_t id, const char *id_type) 2032 { 2033 if (FUID_INDEX(id)) { 2034 char *domain; 2035 2036 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 2037 (void) printf("\t%s %llx [%s-%d]\n", id_type, 2038 (u_longlong_t)id, domain, (int)FUID_RID(id)); 2039 } else { 2040 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 2041 } 2042 2043 } 2044 2045 static void 2046 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 2047 { 2048 uint32_t uid_idx, gid_idx; 2049 2050 uid_idx = FUID_INDEX(uid); 2051 gid_idx = FUID_INDEX(gid); 2052 2053 /* Load domain table, if not already loaded */ 2054 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 2055 uint64_t fuid_obj; 2056 2057 /* first find the fuid object. It lives in the master node */ 2058 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 2059 8, 1, &fuid_obj) == 0); 2060 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 2061 (void) zfs_fuid_table_load(os, fuid_obj, 2062 &idx_tree, &domain_tree); 2063 fuid_table_loaded = B_TRUE; 2064 } 2065 2066 print_idstr(uid, "uid"); 2067 print_idstr(gid, "gid"); 2068 } 2069 2070 /*ARGSUSED*/ 2071 static void 2072 dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 2073 { 2074 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 2075 sa_handle_t *hdl; 2076 uint64_t xattr, rdev, gen; 2077 uint64_t uid, gid, mode, fsize, parent, links; 2078 uint64_t pflags; 2079 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 2080 time_t z_crtime, z_atime, z_mtime, z_ctime; 2081 sa_bulk_attr_t bulk[12]; 2082 int idx = 0; 2083 int error; 2084 2085 VERIFY3P(os, ==, sa_os); 2086 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 2087 (void) printf("Failed to get handle for SA znode\n"); 2088 return; 2089 } 2090 2091 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 2092 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 2093 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 2094 &links, 8); 2095 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 2096 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 2097 &mode, 8); 2098 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 2099 NULL, &parent, 8); 2100 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 2101 &fsize, 8); 2102 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 2103 acctm, 16); 2104 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 2105 modtm, 16); 2106 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 2107 crtm, 16); 2108 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 2109 chgtm, 16); 2110 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 2111 &pflags, 8); 2112 2113 if (sa_bulk_lookup(hdl, bulk, idx)) { 2114 (void) sa_handle_destroy(hdl); 2115 return; 2116 } 2117 2118 z_crtime = (time_t)crtm[0]; 2119 z_atime = (time_t)acctm[0]; 2120 z_mtime = (time_t)modtm[0]; 2121 z_ctime = (time_t)chgtm[0]; 2122 2123 if (dump_opt['d'] > 4) { 2124 error = zfs_obj_to_path(os, object, path, sizeof (path)); 2125 if (error == ESTALE) { 2126 (void) snprintf(path, sizeof (path), "on delete queue"); 2127 } else if (error != 0) { 2128 leaked_objects++; 2129 (void) snprintf(path, sizeof (path), 2130 "path not found, possibly leaked"); 2131 } 2132 (void) printf("\tpath %s\n", path); 2133 } 2134 dump_uidgid(os, uid, gid); 2135 (void) printf("\tatime %s", ctime(&z_atime)); 2136 (void) printf("\tmtime %s", ctime(&z_mtime)); 2137 (void) printf("\tctime %s", ctime(&z_ctime)); 2138 (void) printf("\tcrtime %s", ctime(&z_crtime)); 2139 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 2140 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 2141 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 2142 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 2143 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 2144 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 2145 if (dmu_objset_projectquota_enabled(os) && (pflags & ZFS_PROJID)) { 2146 uint64_t projid; 2147 2148 if (sa_lookup(hdl, sa_attr_table[ZPL_PROJID], &projid, 2149 sizeof (uint64_t)) == 0) 2150 (void) printf("\tprojid %llu\n", (u_longlong_t)projid); 2151 } 2152 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 2153 sizeof (uint64_t)) == 0) 2154 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 2155 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 2156 sizeof (uint64_t)) == 0) 2157 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 2158 sa_handle_destroy(hdl); 2159 } 2160 2161 /*ARGSUSED*/ 2162 static void 2163 dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 2164 { 2165 } 2166 2167 /*ARGSUSED*/ 2168 static void 2169 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 2170 { 2171 } 2172 2173 2174 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 2175 dump_none, /* unallocated */ 2176 dump_zap, /* object directory */ 2177 dump_uint64, /* object array */ 2178 dump_none, /* packed nvlist */ 2179 dump_packed_nvlist, /* packed nvlist size */ 2180 dump_none, /* bpobj */ 2181 dump_bpobj, /* bpobj header */ 2182 dump_none, /* SPA space map header */ 2183 dump_none, /* SPA space map */ 2184 dump_none, /* ZIL intent log */ 2185 dump_dnode, /* DMU dnode */ 2186 dump_dmu_objset, /* DMU objset */ 2187 dump_dsl_dir, /* DSL directory */ 2188 dump_zap, /* DSL directory child map */ 2189 dump_zap, /* DSL dataset snap map */ 2190 dump_zap, /* DSL props */ 2191 dump_dsl_dataset, /* DSL dataset */ 2192 dump_znode, /* ZFS znode */ 2193 dump_acl, /* ZFS V0 ACL */ 2194 dump_uint8, /* ZFS plain file */ 2195 dump_zpldir, /* ZFS directory */ 2196 dump_zap, /* ZFS master node */ 2197 dump_zap, /* ZFS delete queue */ 2198 dump_uint8, /* zvol object */ 2199 dump_zap, /* zvol prop */ 2200 dump_uint8, /* other uint8[] */ 2201 dump_uint64, /* other uint64[] */ 2202 dump_zap, /* other ZAP */ 2203 dump_zap, /* persistent error log */ 2204 dump_uint8, /* SPA history */ 2205 dump_history_offsets, /* SPA history offsets */ 2206 dump_zap, /* Pool properties */ 2207 dump_zap, /* DSL permissions */ 2208 dump_acl, /* ZFS ACL */ 2209 dump_uint8, /* ZFS SYSACL */ 2210 dump_none, /* FUID nvlist */ 2211 dump_packed_nvlist, /* FUID nvlist size */ 2212 dump_zap, /* DSL dataset next clones */ 2213 dump_zap, /* DSL scrub queue */ 2214 dump_zap, /* ZFS user/group/project used */ 2215 dump_zap, /* ZFS user/group/project quota */ 2216 dump_zap, /* snapshot refcount tags */ 2217 dump_ddt_zap, /* DDT ZAP object */ 2218 dump_zap, /* DDT statistics */ 2219 dump_znode, /* SA object */ 2220 dump_zap, /* SA Master Node */ 2221 dump_sa_attrs, /* SA attribute registration */ 2222 dump_sa_layouts, /* SA attribute layouts */ 2223 dump_zap, /* DSL scrub translations */ 2224 dump_none, /* fake dedup BP */ 2225 dump_zap, /* deadlist */ 2226 dump_none, /* deadlist hdr */ 2227 dump_zap, /* dsl clones */ 2228 dump_bpobj_subobjs, /* bpobj subobjs */ 2229 dump_unknown, /* Unknown type, must be last */ 2230 }; 2231 2232 static void 2233 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header, 2234 uint64_t *dnode_slots_used) 2235 { 2236 dmu_buf_t *db = NULL; 2237 dmu_object_info_t doi; 2238 dnode_t *dn; 2239 boolean_t dnode_held = B_FALSE; 2240 void *bonus = NULL; 2241 size_t bsize = 0; 2242 char iblk[32], dblk[32], lsize[32], asize[32], fill[32], dnsize[32]; 2243 char bonus_size[32]; 2244 char aux[50]; 2245 int error; 2246 2247 /* make sure nicenum has enough space */ 2248 CTASSERT(sizeof (iblk) >= NN_NUMBUF_SZ); 2249 CTASSERT(sizeof (dblk) >= NN_NUMBUF_SZ); 2250 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ); 2251 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ); 2252 CTASSERT(sizeof (bonus_size) >= NN_NUMBUF_SZ); 2253 2254 if (*print_header) { 2255 (void) printf("\n%10s %3s %5s %5s %5s %6s %5s %6s %s\n", 2256 "Object", "lvl", "iblk", "dblk", "dsize", "dnsize", 2257 "lsize", "%full", "type"); 2258 *print_header = 0; 2259 } 2260 2261 if (object == 0) { 2262 dn = DMU_META_DNODE(os); 2263 dmu_object_info_from_dnode(dn, &doi); 2264 } else { 2265 /* 2266 * Encrypted datasets will have sensitive bonus buffers 2267 * encrypted. Therefore we cannot hold the bonus buffer and 2268 * must hold the dnode itself instead. 2269 */ 2270 error = dmu_object_info(os, object, &doi); 2271 if (error) 2272 fatal("dmu_object_info() failed, errno %u", error); 2273 2274 if (os->os_encrypted && 2275 DMU_OT_IS_ENCRYPTED(doi.doi_bonus_type)) { 2276 error = dnode_hold(os, object, FTAG, &dn); 2277 if (error) 2278 fatal("dnode_hold() failed, errno %u", error); 2279 dnode_held = B_TRUE; 2280 } else { 2281 error = dmu_bonus_hold(os, object, FTAG, &db); 2282 if (error) 2283 fatal("dmu_bonus_hold(%llu) failed, errno %u", 2284 object, error); 2285 bonus = db->db_data; 2286 bsize = db->db_size; 2287 dn = DB_DNODE((dmu_buf_impl_t *)db); 2288 } 2289 } 2290 2291 if (dnode_slots_used != NULL) 2292 *dnode_slots_used = doi.doi_dnodesize / DNODE_MIN_SIZE; 2293 2294 zdb_nicenum(doi.doi_metadata_block_size, iblk, sizeof (iblk)); 2295 zdb_nicenum(doi.doi_data_block_size, dblk, sizeof (dblk)); 2296 zdb_nicenum(doi.doi_max_offset, lsize, sizeof (lsize)); 2297 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize, sizeof (asize)); 2298 zdb_nicenum(doi.doi_bonus_size, bonus_size, sizeof (bonus_size)); 2299 zdb_nicenum(doi.doi_dnodesize, dnsize, sizeof (dnsize)); 2300 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 2301 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 2302 doi.doi_max_offset); 2303 2304 aux[0] = '\0'; 2305 2306 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 2307 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 2308 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 2309 } 2310 2311 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 2312 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 2313 ZDB_COMPRESS_NAME(doi.doi_compress)); 2314 } 2315 2316 (void) printf("%10" PRIu64 2317 " %3u %5s %5s %5s %5s %5s %6s %s%s\n", 2318 object, doi.doi_indirection, iblk, dblk, 2319 asize, dnsize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 2320 2321 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 2322 (void) printf("%10s %3s %5s %5s %5s %5s %5s %6s %s\n", 2323 "", "", "", "", "", "", bonus_size, "bonus", 2324 ZDB_OT_NAME(doi.doi_bonus_type)); 2325 } 2326 2327 if (verbosity >= 4) { 2328 (void) printf("\tdnode flags: %s%s%s%s\n", 2329 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 2330 "USED_BYTES " : "", 2331 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 2332 "USERUSED_ACCOUNTED " : "", 2333 (dn->dn_phys->dn_flags & DNODE_FLAG_USEROBJUSED_ACCOUNTED) ? 2334 "USEROBJUSED_ACCOUNTED " : "", 2335 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 2336 "SPILL_BLKPTR" : ""); 2337 (void) printf("\tdnode maxblkid: %llu\n", 2338 (longlong_t)dn->dn_phys->dn_maxblkid); 2339 2340 if (!dnode_held) { 2341 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, 2342 object, bonus, bsize); 2343 } else { 2344 (void) printf("\t\t(bonus encrypted)\n"); 2345 } 2346 2347 if (!os->os_encrypted || !DMU_OT_IS_ENCRYPTED(doi.doi_type)) { 2348 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, 2349 NULL, 0); 2350 } else { 2351 (void) printf("\t\t(object encrypted)\n"); 2352 } 2353 2354 *print_header = 1; 2355 } 2356 2357 if (verbosity >= 5) 2358 dump_indirect(dn); 2359 2360 if (verbosity >= 5) { 2361 /* 2362 * Report the list of segments that comprise the object. 2363 */ 2364 uint64_t start = 0; 2365 uint64_t end; 2366 uint64_t blkfill = 1; 2367 int minlvl = 1; 2368 2369 if (dn->dn_type == DMU_OT_DNODE) { 2370 minlvl = 0; 2371 blkfill = DNODES_PER_BLOCK; 2372 } 2373 2374 for (;;) { 2375 char segsize[32]; 2376 /* make sure nicenum has enough space */ 2377 CTASSERT(sizeof (segsize) >= NN_NUMBUF_SZ); 2378 error = dnode_next_offset(dn, 2379 0, &start, minlvl, blkfill, 0); 2380 if (error) 2381 break; 2382 end = start; 2383 error = dnode_next_offset(dn, 2384 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 2385 zdb_nicenum(end - start, segsize, sizeof (segsize)); 2386 (void) printf("\t\tsegment [%016llx, %016llx)" 2387 " size %5s\n", (u_longlong_t)start, 2388 (u_longlong_t)end, segsize); 2389 if (error) 2390 break; 2391 start = end; 2392 } 2393 } 2394 2395 if (db != NULL) 2396 dmu_buf_rele(db, FTAG); 2397 if (dnode_held) 2398 dnode_rele(dn, FTAG); 2399 } 2400 2401 static void 2402 count_dir_mos_objects(dsl_dir_t *dd) 2403 { 2404 mos_obj_refd(dd->dd_object); 2405 mos_obj_refd(dsl_dir_phys(dd)->dd_child_dir_zapobj); 2406 mos_obj_refd(dsl_dir_phys(dd)->dd_deleg_zapobj); 2407 mos_obj_refd(dsl_dir_phys(dd)->dd_props_zapobj); 2408 mos_obj_refd(dsl_dir_phys(dd)->dd_clones); 2409 } 2410 2411 static void 2412 count_ds_mos_objects(dsl_dataset_t *ds) 2413 { 2414 mos_obj_refd(ds->ds_object); 2415 mos_obj_refd(dsl_dataset_phys(ds)->ds_next_clones_obj); 2416 mos_obj_refd(dsl_dataset_phys(ds)->ds_props_obj); 2417 mos_obj_refd(dsl_dataset_phys(ds)->ds_userrefs_obj); 2418 mos_obj_refd(dsl_dataset_phys(ds)->ds_snapnames_zapobj); 2419 2420 if (!dsl_dataset_is_snapshot(ds)) { 2421 count_dir_mos_objects(ds->ds_dir); 2422 } 2423 } 2424 2425 static const char *objset_types[DMU_OST_NUMTYPES] = { 2426 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 2427 2428 static void 2429 dump_dir(objset_t *os) 2430 { 2431 dmu_objset_stats_t dds; 2432 uint64_t object, object_count; 2433 uint64_t refdbytes, usedobjs, scratch; 2434 char numbuf[32]; 2435 char blkbuf[BP_SPRINTF_LEN + 20]; 2436 char osname[ZFS_MAX_DATASET_NAME_LEN]; 2437 const char *type = "UNKNOWN"; 2438 int verbosity = dump_opt['d']; 2439 int print_header = 1; 2440 unsigned i; 2441 int error; 2442 uint64_t total_slots_used = 0; 2443 uint64_t max_slot_used = 0; 2444 uint64_t dnode_slots; 2445 2446 /* make sure nicenum has enough space */ 2447 CTASSERT(sizeof (numbuf) >= NN_NUMBUF_SZ); 2448 2449 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 2450 dmu_objset_fast_stat(os, &dds); 2451 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 2452 2453 if (dds.dds_type < DMU_OST_NUMTYPES) 2454 type = objset_types[dds.dds_type]; 2455 2456 if (dds.dds_type == DMU_OST_META) { 2457 dds.dds_creation_txg = TXG_INITIAL; 2458 usedobjs = BP_GET_FILL(os->os_rootbp); 2459 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)-> 2460 dd_used_bytes; 2461 } else { 2462 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 2463 } 2464 2465 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp)); 2466 2467 zdb_nicenum(refdbytes, numbuf, sizeof (numbuf)); 2468 2469 if (verbosity >= 4) { 2470 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp "); 2471 (void) snprintf_blkptr(blkbuf + strlen(blkbuf), 2472 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp); 2473 } else { 2474 blkbuf[0] = '\0'; 2475 } 2476 2477 dmu_objset_name(os, osname); 2478 2479 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 2480 "%s, %llu objects%s%s\n", 2481 osname, type, (u_longlong_t)dmu_objset_id(os), 2482 (u_longlong_t)dds.dds_creation_txg, 2483 numbuf, (u_longlong_t)usedobjs, blkbuf, 2484 (dds.dds_inconsistent) ? " (inconsistent)" : ""); 2485 2486 if (zopt_objects != 0) { 2487 for (i = 0; i < zopt_objects; i++) 2488 dump_object(os, zopt_object[i], verbosity, 2489 &print_header, NULL); 2490 (void) printf("\n"); 2491 return; 2492 } 2493 2494 if (dump_opt['i'] != 0 || verbosity >= 2) 2495 dump_intent_log(dmu_objset_zil(os)); 2496 2497 if (dmu_objset_ds(os) != NULL) { 2498 dsl_dataset_t *ds = dmu_objset_ds(os); 2499 dump_deadlist(&ds->ds_deadlist); 2500 2501 if (dsl_dataset_remap_deadlist_exists(ds)) { 2502 (void) printf("ds_remap_deadlist:\n"); 2503 dump_deadlist(&ds->ds_remap_deadlist); 2504 } 2505 count_ds_mos_objects(ds); 2506 } 2507 2508 if (verbosity < 2) 2509 return; 2510 2511 if (BP_IS_HOLE(os->os_rootbp)) 2512 return; 2513 2514 dump_object(os, 0, verbosity, &print_header, NULL); 2515 object_count = 0; 2516 if (DMU_USERUSED_DNODE(os) != NULL && 2517 DMU_USERUSED_DNODE(os)->dn_type != 0) { 2518 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header, 2519 NULL); 2520 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header, 2521 NULL); 2522 } 2523 2524 if (DMU_PROJECTUSED_DNODE(os) != NULL && 2525 DMU_PROJECTUSED_DNODE(os)->dn_type != 0) 2526 dump_object(os, DMU_PROJECTUSED_OBJECT, verbosity, 2527 &print_header, NULL); 2528 2529 object = 0; 2530 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 2531 dump_object(os, object, verbosity, &print_header, &dnode_slots); 2532 object_count++; 2533 total_slots_used += dnode_slots; 2534 max_slot_used = object + dnode_slots - 1; 2535 } 2536 2537 (void) printf("\n"); 2538 2539 (void) printf(" Dnode slots:\n"); 2540 (void) printf("\tTotal used: %10llu\n", 2541 (u_longlong_t)total_slots_used); 2542 (void) printf("\tMax used: %10llu\n", 2543 (u_longlong_t)max_slot_used); 2544 (void) printf("\tPercent empty: %10lf\n", 2545 (double)(max_slot_used - total_slots_used)*100 / 2546 (double)max_slot_used); 2547 2548 (void) printf("\n"); 2549 2550 if (error != ESRCH) { 2551 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 2552 abort(); 2553 } 2554 if (leaked_objects != 0) { 2555 (void) printf("%d potentially leaked objects detected\n", 2556 leaked_objects); 2557 leaked_objects = 0; 2558 } 2559 2560 ASSERT3U(object_count, ==, usedobjs); 2561 } 2562 2563 static void 2564 dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 2565 { 2566 time_t timestamp = ub->ub_timestamp; 2567 2568 (void) printf("%s", header ? header : ""); 2569 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 2570 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 2571 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 2572 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 2573 (void) printf("\ttimestamp = %llu UTC = %s", 2574 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 2575 2576 (void) printf("\tmmp_magic = %016llx\n", 2577 (u_longlong_t)ub->ub_mmp_magic); 2578 if (MMP_VALID(ub)) { 2579 (void) printf("\tmmp_delay = %0llu\n", 2580 (u_longlong_t)ub->ub_mmp_delay); 2581 if (MMP_SEQ_VALID(ub)) 2582 (void) printf("\tmmp_seq = %u\n", 2583 (unsigned int) MMP_SEQ(ub)); 2584 if (MMP_FAIL_INT_VALID(ub)) 2585 (void) printf("\tmmp_fail = %u\n", 2586 (unsigned int) MMP_FAIL_INT(ub)); 2587 if (MMP_INTERVAL_VALID(ub)) 2588 (void) printf("\tmmp_write = %u\n", 2589 (unsigned int) MMP_INTERVAL(ub)); 2590 /* After MMP_* to make summarize_uberblock_mmp cleaner */ 2591 (void) printf("\tmmp_valid = %x\n", 2592 (unsigned int) ub->ub_mmp_config & 0xFF); 2593 } 2594 2595 if (dump_opt['u'] >= 4) { 2596 char blkbuf[BP_SPRINTF_LEN]; 2597 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp); 2598 (void) printf("\trootbp = %s\n", blkbuf); 2599 } 2600 (void) printf("\tcheckpoint_txg = %llu\n", 2601 (u_longlong_t)ub->ub_checkpoint_txg); 2602 (void) printf("%s", footer ? footer : ""); 2603 } 2604 2605 static void 2606 dump_config(spa_t *spa) 2607 { 2608 dmu_buf_t *db; 2609 size_t nvsize = 0; 2610 int error = 0; 2611 2612 2613 error = dmu_bonus_hold(spa->spa_meta_objset, 2614 spa->spa_config_object, FTAG, &db); 2615 2616 if (error == 0) { 2617 nvsize = *(uint64_t *)db->db_data; 2618 dmu_buf_rele(db, FTAG); 2619 2620 (void) printf("\nMOS Configuration:\n"); 2621 dump_packed_nvlist(spa->spa_meta_objset, 2622 spa->spa_config_object, (void *)&nvsize, 1); 2623 } else { 2624 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 2625 (u_longlong_t)spa->spa_config_object, error); 2626 } 2627 } 2628 2629 static void 2630 dump_cachefile(const char *cachefile) 2631 { 2632 int fd; 2633 struct stat64 statbuf; 2634 char *buf; 2635 nvlist_t *config; 2636 2637 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 2638 (void) printf("cannot open '%s': %s\n", cachefile, 2639 strerror(errno)); 2640 exit(1); 2641 } 2642 2643 if (fstat64(fd, &statbuf) != 0) { 2644 (void) printf("failed to stat '%s': %s\n", cachefile, 2645 strerror(errno)); 2646 exit(1); 2647 } 2648 2649 if ((buf = malloc(statbuf.st_size)) == NULL) { 2650 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 2651 (u_longlong_t)statbuf.st_size); 2652 exit(1); 2653 } 2654 2655 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 2656 (void) fprintf(stderr, "failed to read %llu bytes\n", 2657 (u_longlong_t)statbuf.st_size); 2658 exit(1); 2659 } 2660 2661 (void) close(fd); 2662 2663 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 2664 (void) fprintf(stderr, "failed to unpack nvlist\n"); 2665 exit(1); 2666 } 2667 2668 free(buf); 2669 2670 dump_nvlist(config, 0); 2671 2672 nvlist_free(config); 2673 } 2674 2675 static void 2676 print_l2arc_header(void) 2677 { 2678 (void) printf("------------------------------------\n"); 2679 (void) printf("L2ARC device header\n"); 2680 (void) printf("------------------------------------\n"); 2681 } 2682 2683 static void 2684 print_l2arc_log_blocks(void) 2685 { 2686 (void) printf("------------------------------------\n"); 2687 (void) printf("L2ARC device log blocks\n"); 2688 (void) printf("------------------------------------\n"); 2689 } 2690 2691 static void 2692 dump_l2arc_log_entries(uint64_t log_entries, 2693 l2arc_log_ent_phys_t *le, uint64_t i) 2694 { 2695 for (uint64_t j = 0; j < log_entries; j++) { 2696 dva_t dva = le[j].le_dva; 2697 (void) printf("lb[%4llu]\tle[%4d]\tDVA asize: %llu, " 2698 "vdev: %llu, offset: %llu\n", 2699 (u_longlong_t)i, j + 1, 2700 (u_longlong_t)DVA_GET_ASIZE(&dva), 2701 (u_longlong_t)DVA_GET_VDEV(&dva), 2702 (u_longlong_t)DVA_GET_OFFSET(&dva)); 2703 (void) printf("|\t\t\t\tbirth: %llu\n", 2704 (u_longlong_t)le[j].le_birth); 2705 (void) printf("|\t\t\t\tlsize: %llu\n", 2706 (u_longlong_t)L2BLK_GET_LSIZE((&le[j])->le_prop)); 2707 (void) printf("|\t\t\t\tpsize: %llu\n", 2708 (u_longlong_t)L2BLK_GET_PSIZE((&le[j])->le_prop)); 2709 (void) printf("|\t\t\t\tcompr: %llu\n", 2710 (u_longlong_t)L2BLK_GET_COMPRESS((&le[j])->le_prop)); 2711 (void) printf("|\t\t\t\ttype: %llu\n", 2712 (u_longlong_t)L2BLK_GET_TYPE((&le[j])->le_prop)); 2713 (void) printf("|\t\t\t\tprotected: %llu\n", 2714 (u_longlong_t)L2BLK_GET_PROTECTED((&le[j])->le_prop)); 2715 (void) printf("|\t\t\t\tprefetch: %llu\n", 2716 (u_longlong_t)L2BLK_GET_PREFETCH((&le[j])->le_prop)); 2717 (void) printf("|\t\t\t\taddress: %llu\n", 2718 (u_longlong_t)le[j].le_daddr); 2719 (void) printf("|\t\t\t\tARC state: %llu\n", 2720 (u_longlong_t)L2BLK_GET_STATE((&le[j])->le_prop)); 2721 (void) printf("|\n"); 2722 } 2723 (void) printf("\n"); 2724 } 2725 2726 static void 2727 dump_l2arc_log_blkptr(l2arc_log_blkptr_t lbps) 2728 { 2729 (void) printf("|\t\tdaddr: %llu\n", (u_longlong_t)lbps.lbp_daddr); 2730 (void) printf("|\t\tpayload_asize: %llu\n", 2731 (u_longlong_t)lbps.lbp_payload_asize); 2732 (void) printf("|\t\tpayload_start: %llu\n", 2733 (u_longlong_t)lbps.lbp_payload_start); 2734 (void) printf("|\t\tlsize: %llu\n", 2735 (u_longlong_t)L2BLK_GET_LSIZE((&lbps)->lbp_prop)); 2736 (void) printf("|\t\tasize: %llu\n", 2737 (u_longlong_t)L2BLK_GET_PSIZE((&lbps)->lbp_prop)); 2738 (void) printf("|\t\tcompralgo: %llu\n", 2739 (u_longlong_t)L2BLK_GET_COMPRESS((&lbps)->lbp_prop)); 2740 (void) printf("|\t\tcksumalgo: %llu\n", 2741 (u_longlong_t)L2BLK_GET_CHECKSUM((&lbps)->lbp_prop)); 2742 (void) printf("|\n\n"); 2743 } 2744 2745 static void 2746 dump_l2arc_log_blocks(int fd, l2arc_dev_hdr_phys_t l2dhdr, 2747 l2arc_dev_hdr_phys_t *rebuild) 2748 { 2749 l2arc_log_blk_phys_t this_lb; 2750 uint64_t asize; 2751 l2arc_log_blkptr_t lbps[2]; 2752 abd_t *abd; 2753 zio_cksum_t cksum; 2754 int failed = 0; 2755 l2arc_dev_t dev; 2756 2757 if (!dump_opt['q']) 2758 print_l2arc_log_blocks(); 2759 bcopy((&l2dhdr)->dh_start_lbps, lbps, sizeof (lbps)); 2760 2761 dev.l2ad_evict = l2dhdr.dh_evict; 2762 dev.l2ad_start = l2dhdr.dh_start; 2763 dev.l2ad_end = l2dhdr.dh_end; 2764 2765 if (l2dhdr.dh_start_lbps[0].lbp_daddr == 0) { 2766 /* no log blocks to read */ 2767 if (!dump_opt['q']) { 2768 (void) printf("No log blocks to read\n"); 2769 (void) printf("\n"); 2770 } 2771 return; 2772 } else { 2773 dev.l2ad_hand = lbps[0].lbp_daddr + 2774 L2BLK_GET_PSIZE((&lbps[0])->lbp_prop); 2775 } 2776 2777 dev.l2ad_first = !!(l2dhdr.dh_flags & L2ARC_DEV_HDR_EVICT_FIRST); 2778 2779 for (;;) { 2780 if (!l2arc_log_blkptr_valid(&dev, &lbps[0])) 2781 break; 2782 2783 /* L2BLK_GET_PSIZE returns aligned size for log blocks */ 2784 asize = L2BLK_GET_PSIZE((&lbps[0])->lbp_prop); 2785 if (pread64(fd, &this_lb, asize, lbps[0].lbp_daddr) != 2786 (ssize_t)asize) { 2787 if (!dump_opt['q']) { 2788 (void) printf("Error while reading next log " 2789 "block\n\n"); 2790 } 2791 break; 2792 } 2793 2794 fletcher_4_native(&this_lb, asize, NULL, &cksum); 2795 if (!ZIO_CHECKSUM_EQUAL(cksum, lbps[0].lbp_cksum)) { 2796 failed++; 2797 if (!dump_opt['q']) { 2798 (void) printf("Invalid cksum\n"); 2799 dump_l2arc_log_blkptr(lbps[0]); 2800 } 2801 break; 2802 } 2803 2804 switch (L2BLK_GET_COMPRESS((&lbps[0])->lbp_prop)) { 2805 case ZIO_COMPRESS_OFF: 2806 break; 2807 case ZIO_COMPRESS_LZ4: 2808 abd = abd_alloc_for_io(asize, B_TRUE); 2809 abd_copy_from_buf_off(abd, &this_lb, 0, asize); 2810 zio_decompress_data(L2BLK_GET_COMPRESS( 2811 (&lbps[0])->lbp_prop), abd, &this_lb, 2812 asize, sizeof (this_lb)); 2813 abd_free(abd); 2814 break; 2815 default: 2816 break; 2817 } 2818 2819 if (this_lb.lb_magic == BSWAP_64(L2ARC_LOG_BLK_MAGIC)) 2820 byteswap_uint64_array(&this_lb, sizeof (this_lb)); 2821 if (this_lb.lb_magic != L2ARC_LOG_BLK_MAGIC) { 2822 if (!dump_opt['q']) 2823 (void) printf("Invalid log block magic\n\n"); 2824 break; 2825 } 2826 2827 rebuild->dh_lb_count++; 2828 rebuild->dh_lb_asize += asize; 2829 if (dump_opt['l'] > 1 && !dump_opt['q']) { 2830 (void) printf("lb[%4llu]\tmagic: %llu\n", 2831 (u_longlong_t)rebuild->dh_lb_count, 2832 (u_longlong_t)this_lb.lb_magic); 2833 dump_l2arc_log_blkptr(lbps[0]); 2834 } 2835 2836 if (dump_opt['l'] > 2 && !dump_opt['q']) 2837 dump_l2arc_log_entries(l2dhdr.dh_log_entries, 2838 this_lb.lb_entries, 2839 rebuild->dh_lb_count); 2840 2841 if (l2arc_range_check_overlap(lbps[1].lbp_payload_start, 2842 lbps[0].lbp_payload_start, dev.l2ad_evict) && 2843 !dev.l2ad_first) 2844 break; 2845 2846 lbps[0] = lbps[1]; 2847 lbps[1] = this_lb.lb_prev_lbp; 2848 } 2849 2850 if (!dump_opt['q']) { 2851 (void) printf("log_blk_count:\t %llu with valid cksum\n", 2852 (u_longlong_t)rebuild->dh_lb_count); 2853 (void) printf("\t\t %d with invalid cksum\n", failed); 2854 (void) printf("log_blk_asize:\t %llu\n\n", 2855 (u_longlong_t)rebuild->dh_lb_asize); 2856 } 2857 } 2858 2859 static int 2860 dump_l2arc_header(int fd) 2861 { 2862 l2arc_dev_hdr_phys_t l2dhdr, rebuild; 2863 int error = B_FALSE; 2864 2865 bzero(&l2dhdr, sizeof (l2dhdr)); 2866 bzero(&rebuild, sizeof (rebuild)); 2867 2868 if (pread64(fd, &l2dhdr, sizeof (l2dhdr), 2869 VDEV_LABEL_START_SIZE) != sizeof (l2dhdr)) { 2870 error = B_TRUE; 2871 } else { 2872 if (l2dhdr.dh_magic == BSWAP_64(L2ARC_DEV_HDR_MAGIC)) 2873 byteswap_uint64_array(&l2dhdr, sizeof (l2dhdr)); 2874 2875 if (l2dhdr.dh_magic != L2ARC_DEV_HDR_MAGIC) 2876 error = B_TRUE; 2877 } 2878 2879 if (error) { 2880 (void) printf("L2ARC device header not found\n\n"); 2881 /* Do not return an error here for backward compatibility */ 2882 return (0); 2883 } else if (!dump_opt['q']) { 2884 print_l2arc_header(); 2885 2886 (void) printf(" magic: %llu\n", 2887 (u_longlong_t)l2dhdr.dh_magic); 2888 (void) printf(" version: %llu\n", 2889 (u_longlong_t)l2dhdr.dh_version); 2890 (void) printf(" pool_guid: %llu\n", 2891 (u_longlong_t)l2dhdr.dh_spa_guid); 2892 (void) printf(" flags: %llu\n", 2893 (u_longlong_t)l2dhdr.dh_flags); 2894 (void) printf(" start_lbps[0]: %llu\n", 2895 (u_longlong_t) 2896 l2dhdr.dh_start_lbps[0].lbp_daddr); 2897 (void) printf(" start_lbps[1]: %llu\n", 2898 (u_longlong_t) 2899 l2dhdr.dh_start_lbps[1].lbp_daddr); 2900 (void) printf(" log_blk_ent: %llu\n", 2901 (u_longlong_t)l2dhdr.dh_log_entries); 2902 (void) printf(" start: %llu\n", 2903 (u_longlong_t)l2dhdr.dh_start); 2904 (void) printf(" end: %llu\n", 2905 (u_longlong_t)l2dhdr.dh_end); 2906 (void) printf(" evict: %llu\n", 2907 (u_longlong_t)l2dhdr.dh_evict); 2908 (void) printf(" lb_asize_refcount: %llu\n", 2909 (u_longlong_t)l2dhdr.dh_lb_asize); 2910 (void) printf(" lb_count_refcount: %llu\n\n", 2911 (u_longlong_t)l2dhdr.dh_lb_count); 2912 } 2913 2914 dump_l2arc_log_blocks(fd, l2dhdr, &rebuild); 2915 /* 2916 * The total aligned size of log blocks and the number of log blocks 2917 * reported in the header of the device may be less than what zdb 2918 * reports by dump_l2arc_log_blocks() which emulates l2arc_rebuild(). 2919 * This happens because dump_l2arc_log_blocks() lacks the memory 2920 * pressure valve that l2arc_rebuild() has. Thus, if we are on a system 2921 * with low memory, l2arc_rebuild will exit prematurely and dh_lb_asize 2922 * and dh_lb_count will be lower to begin with than what exists on the 2923 * device. This is normal and zdb should not exit with an error. The 2924 * opposite case should never happen though, the values reported in the 2925 * header should never be higher than what dump_l2arc_log_blocks() and 2926 * l2arc_rebuild() report. If this happens there is a leak in the 2927 * accounting of log blocks. 2928 */ 2929 if (l2dhdr.dh_lb_asize > rebuild.dh_lb_asize || 2930 l2dhdr.dh_lb_count > rebuild.dh_lb_count) 2931 return (1); 2932 2933 return (0); 2934 } 2935 2936 static char curpath[PATH_MAX]; 2937 2938 /* 2939 * Iterate through the path components, recursively passing 2940 * current one's obj and remaining path until we find the obj 2941 * for the last one. 2942 */ 2943 static int 2944 dump_path_impl(objset_t *os, uint64_t obj, char *name) 2945 { 2946 int err; 2947 int header = 1; 2948 uint64_t child_obj; 2949 char *s; 2950 dmu_buf_t *db; 2951 dmu_object_info_t doi; 2952 2953 if ((s = strchr(name, '/')) != NULL) 2954 *s = '\0'; 2955 err = zap_lookup(os, obj, name, 8, 1, &child_obj); 2956 2957 (void) strlcat(curpath, name, sizeof (curpath)); 2958 2959 if (err != 0) { 2960 (void) fprintf(stderr, "failed to lookup %s: %s\n", 2961 curpath, strerror(err)); 2962 return (err); 2963 } 2964 2965 child_obj = ZFS_DIRENT_OBJ(child_obj); 2966 err = sa_buf_hold(os, child_obj, FTAG, &db); 2967 if (err != 0) { 2968 (void) fprintf(stderr, 2969 "failed to get SA dbuf for obj %llu: %s\n", 2970 (u_longlong_t)child_obj, strerror(err)); 2971 return (EINVAL); 2972 } 2973 dmu_object_info_from_db(db, &doi); 2974 sa_buf_rele(db, FTAG); 2975 2976 if (doi.doi_bonus_type != DMU_OT_SA && 2977 doi.doi_bonus_type != DMU_OT_ZNODE) { 2978 (void) fprintf(stderr, "invalid bonus type %d for obj %llu\n", 2979 doi.doi_bonus_type, (u_longlong_t)child_obj); 2980 return (EINVAL); 2981 } 2982 2983 if (dump_opt['v'] > 6) { 2984 (void) printf("obj=%llu %s type=%d bonustype=%d\n", 2985 (u_longlong_t)child_obj, curpath, doi.doi_type, 2986 doi.doi_bonus_type); 2987 } 2988 2989 (void) strlcat(curpath, "/", sizeof (curpath)); 2990 2991 switch (doi.doi_type) { 2992 case DMU_OT_DIRECTORY_CONTENTS: 2993 if (s != NULL && *(s + 1) != '\0') 2994 return (dump_path_impl(os, child_obj, s + 1)); 2995 /*FALLTHROUGH*/ 2996 case DMU_OT_PLAIN_FILE_CONTENTS: 2997 dump_object(os, child_obj, dump_opt['v'], &header, NULL); 2998 return (0); 2999 default: 3000 (void) fprintf(stderr, "object %llu has non-file/directory " 3001 "type %d\n", (u_longlong_t)obj, doi.doi_type); 3002 break; 3003 } 3004 3005 return (EINVAL); 3006 } 3007 3008 /* 3009 * Dump the blocks for the object specified by path inside the dataset. 3010 */ 3011 static int 3012 dump_path(char *ds, char *path) 3013 { 3014 int err; 3015 objset_t *os; 3016 uint64_t root_obj; 3017 3018 err = open_objset(ds, DMU_OST_ZFS, FTAG, &os); 3019 if (err != 0) 3020 return (err); 3021 3022 err = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1, &root_obj); 3023 if (err != 0) { 3024 (void) fprintf(stderr, "can't lookup root znode: %s\n", 3025 strerror(err)); 3026 dmu_objset_disown(os, B_FALSE, FTAG); 3027 return (EINVAL); 3028 } 3029 3030 (void) snprintf(curpath, sizeof (curpath), "dataset=%s path=/", ds); 3031 3032 err = dump_path_impl(os, root_obj, path); 3033 3034 close_objset(os, FTAG); 3035 return (err); 3036 } 3037 3038 typedef struct cksum_record { 3039 zio_cksum_t cksum; 3040 boolean_t labels[VDEV_LABELS]; 3041 avl_node_t link; 3042 } cksum_record_t; 3043 3044 static int 3045 cksum_record_compare(const void *x1, const void *x2) 3046 { 3047 const cksum_record_t *l = (cksum_record_t *)x1; 3048 const cksum_record_t *r = (cksum_record_t *)x2; 3049 int arraysize = ARRAY_SIZE(l->cksum.zc_word); 3050 int difference; 3051 3052 for (int i = 0; i < arraysize; i++) { 3053 difference = AVL_CMP(l->cksum.zc_word[i], r->cksum.zc_word[i]); 3054 if (difference) 3055 break; 3056 } 3057 3058 return (difference); 3059 } 3060 3061 static cksum_record_t * 3062 cksum_record_alloc(zio_cksum_t *cksum, int l) 3063 { 3064 cksum_record_t *rec; 3065 3066 rec = umem_zalloc(sizeof (*rec), UMEM_NOFAIL); 3067 rec->cksum = *cksum; 3068 rec->labels[l] = B_TRUE; 3069 3070 return (rec); 3071 } 3072 3073 static cksum_record_t * 3074 cksum_record_lookup(avl_tree_t *tree, zio_cksum_t *cksum) 3075 { 3076 cksum_record_t lookup = { .cksum = *cksum }; 3077 avl_index_t where; 3078 3079 return (avl_find(tree, &lookup, &where)); 3080 } 3081 3082 static cksum_record_t * 3083 cksum_record_insert(avl_tree_t *tree, zio_cksum_t *cksum, int l) 3084 { 3085 cksum_record_t *rec; 3086 3087 rec = cksum_record_lookup(tree, cksum); 3088 if (rec) { 3089 rec->labels[l] = B_TRUE; 3090 } else { 3091 rec = cksum_record_alloc(cksum, l); 3092 avl_add(tree, rec); 3093 } 3094 3095 return (rec); 3096 } 3097 3098 static int 3099 first_label(cksum_record_t *rec) 3100 { 3101 for (int i = 0; i < VDEV_LABELS; i++) 3102 if (rec->labels[i]) 3103 return (i); 3104 3105 return (-1); 3106 } 3107 3108 static void 3109 print_label_numbers(char *prefix, cksum_record_t *rec) 3110 { 3111 printf("%s", prefix); 3112 for (int i = 0; i < VDEV_LABELS; i++) 3113 if (rec->labels[i] == B_TRUE) 3114 printf("%d ", i); 3115 printf("\n"); 3116 } 3117 3118 #define MAX_UBERBLOCK_COUNT (VDEV_UBERBLOCK_RING >> UBERBLOCK_SHIFT) 3119 3120 typedef struct zdb_label { 3121 vdev_label_t label; 3122 nvlist_t *config_nv; 3123 cksum_record_t *config; 3124 cksum_record_t *uberblocks[MAX_UBERBLOCK_COUNT]; 3125 boolean_t header_printed; 3126 boolean_t read_failed; 3127 } zdb_label_t; 3128 3129 static void 3130 print_label_header(zdb_label_t *label, int l) 3131 { 3132 3133 if (dump_opt['q']) 3134 return; 3135 3136 if (label->header_printed == B_TRUE) 3137 return; 3138 3139 (void) printf("------------------------------------\n"); 3140 (void) printf("LABEL %d\n", l); 3141 (void) printf("------------------------------------\n"); 3142 3143 label->header_printed = B_TRUE; 3144 } 3145 3146 static void 3147 dump_config_from_label(zdb_label_t *label, size_t buflen, int l) 3148 { 3149 if (dump_opt['q']) 3150 return; 3151 3152 if ((dump_opt['l'] < 3) && (first_label(label->config) != l)) 3153 return; 3154 3155 print_label_header(label, l); 3156 dump_nvlist(label->config_nv, 4); 3157 print_label_numbers(" labels = ", label->config); 3158 } 3159 3160 #define ZDB_MAX_UB_HEADER_SIZE 32 3161 3162 static void 3163 dump_label_uberblocks(zdb_label_t *label, uint64_t ashift, int label_num) 3164 { 3165 vdev_t vd; 3166 char header[ZDB_MAX_UB_HEADER_SIZE]; 3167 3168 vd.vdev_ashift = ashift; 3169 vd.vdev_top = &vd; 3170 3171 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(&vd); i++) { 3172 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(&vd, i); 3173 uberblock_t *ub = (void *)((char *)&label->label + uoff); 3174 cksum_record_t *rec = label->uberblocks[i]; 3175 3176 if (rec == NULL) { 3177 if (dump_opt['u'] >= 2) { 3178 print_label_header(label, label_num); 3179 (void) printf(" Uberblock[%d] invalid\n", i); 3180 } 3181 continue; 3182 } 3183 3184 if ((dump_opt['u'] < 3) && (first_label(rec) != label_num)) 3185 continue; 3186 3187 print_label_header(label, label_num); 3188 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 3189 " Uberblock[%d]\n", i); 3190 dump_uberblock(ub, header, ""); 3191 print_label_numbers(" labels = ", rec); 3192 } 3193 } 3194 3195 static int 3196 dump_label(const char *dev) 3197 { 3198 char path[MAXPATHLEN]; 3199 zdb_label_t labels[VDEV_LABELS]; 3200 uint64_t psize, ashift, l2cache; 3201 struct stat64 statbuf; 3202 boolean_t config_found = B_FALSE; 3203 boolean_t error = B_FALSE; 3204 boolean_t read_l2arc_header = B_FALSE; 3205 avl_tree_t config_tree; 3206 avl_tree_t uberblock_tree; 3207 void *node, *cookie; 3208 int fd; 3209 3210 bzero(labels, sizeof (labels)); 3211 3212 (void) strlcpy(path, dev, sizeof (path)); 3213 if (dev[0] == '/') { 3214 if (strncmp(dev, ZFS_DISK_ROOTD, 3215 strlen(ZFS_DISK_ROOTD)) == 0) { 3216 (void) snprintf(path, sizeof (path), "%s%s", 3217 ZFS_RDISK_ROOTD, dev + strlen(ZFS_DISK_ROOTD)); 3218 } 3219 } else if (stat64(path, &statbuf) != 0) { 3220 char *s; 3221 3222 (void) snprintf(path, sizeof (path), "%s%s", ZFS_RDISK_ROOTD, 3223 dev); 3224 if (((s = strrchr(dev, 's')) == NULL && 3225 (s = strchr(dev, 'p')) == NULL) || 3226 !isdigit(*(s + 1))) 3227 (void) strlcat(path, "s0", sizeof (path)); 3228 } 3229 3230 if ((fd = open64(path, O_RDONLY)) < 0) { 3231 (void) fprintf(stderr, "cannot open '%s': %s\n", path, 3232 strerror(errno)); 3233 exit(1); 3234 } 3235 3236 if (fstat64(fd, &statbuf) != 0) { 3237 (void) fprintf(stderr, "failed to stat '%s': %s\n", path, 3238 strerror(errno)); 3239 (void) close(fd); 3240 exit(1); 3241 } 3242 3243 if (S_ISBLK(statbuf.st_mode)) { 3244 (void) fprintf(stderr, 3245 "cannot use '%s': character device required\n", path); 3246 (void) close(fd); 3247 exit(1); 3248 } 3249 3250 avl_create(&config_tree, cksum_record_compare, 3251 sizeof (cksum_record_t), offsetof(cksum_record_t, link)); 3252 avl_create(&uberblock_tree, cksum_record_compare, 3253 sizeof (cksum_record_t), offsetof(cksum_record_t, link)); 3254 3255 psize = statbuf.st_size; 3256 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 3257 ashift = SPA_MINBLOCKSHIFT; 3258 3259 /* 3260 * 1. Read the label from disk 3261 * 2. Unpack the configuration and insert in config tree. 3262 * 3. Traverse all uberblocks and insert in uberblock tree. 3263 */ 3264 for (int l = 0; l < VDEV_LABELS; l++) { 3265 zdb_label_t *label = &labels[l]; 3266 char *buf = label->label.vl_vdev_phys.vp_nvlist; 3267 size_t buflen = sizeof (label->label.vl_vdev_phys.vp_nvlist); 3268 nvlist_t *config; 3269 cksum_record_t *rec; 3270 zio_cksum_t cksum; 3271 vdev_t vd; 3272 3273 if (pread64(fd, &label->label, sizeof (label->label), 3274 vdev_label_offset(psize, l, 0)) != sizeof (label->label)) { 3275 if (!dump_opt['q']) 3276 (void) printf("failed to read label %d\n", l); 3277 label->read_failed = B_TRUE; 3278 error = B_TRUE; 3279 continue; 3280 } 3281 3282 label->read_failed = B_FALSE; 3283 3284 if (nvlist_unpack(buf, buflen, &config, 0) == 0) { 3285 nvlist_t *vdev_tree = NULL; 3286 size_t size; 3287 3288 if ((nvlist_lookup_nvlist(config, 3289 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 3290 (nvlist_lookup_uint64(vdev_tree, 3291 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 3292 ashift = SPA_MINBLOCKSHIFT; 3293 3294 /* If the device is a cache device clear the header. */ 3295 if (!read_l2arc_header) { 3296 if (nvlist_lookup_uint64(config, 3297 ZPOOL_CONFIG_POOL_STATE, &l2cache) == 0 && 3298 l2cache == POOL_STATE_L2CACHE) { 3299 read_l2arc_header = B_TRUE; 3300 } 3301 } 3302 3303 if (nvlist_size(config, &size, NV_ENCODE_XDR) != 0) 3304 size = buflen; 3305 3306 fletcher_4_native(buf, size, NULL, &cksum); 3307 rec = cksum_record_insert(&config_tree, &cksum, l); 3308 3309 label->config = rec; 3310 label->config_nv = config; 3311 config_found = B_TRUE; 3312 } else { 3313 error = B_TRUE; 3314 } 3315 3316 vd.vdev_ashift = ashift; 3317 vd.vdev_top = &vd; 3318 3319 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(&vd); i++) { 3320 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(&vd, i); 3321 uberblock_t *ub = (void *)((char *)label + uoff); 3322 3323 if (uberblock_verify(ub)) 3324 continue; 3325 3326 fletcher_4_native(ub, sizeof (*ub), NULL, &cksum); 3327 rec = cksum_record_insert(&uberblock_tree, &cksum, l); 3328 3329 label->uberblocks[i] = rec; 3330 } 3331 } 3332 3333 /* 3334 * Dump the label and uberblocks. 3335 */ 3336 for (int l = 0; l < VDEV_LABELS; l++) { 3337 zdb_label_t *label = &labels[l]; 3338 size_t buflen = sizeof (label->label.vl_vdev_phys.vp_nvlist); 3339 3340 if (label->read_failed == B_TRUE) 3341 continue; 3342 3343 if (label->config_nv) { 3344 dump_config_from_label(label, buflen, l); 3345 } else { 3346 if (!dump_opt['q']) 3347 (void) printf("failed to unpack label %d\n", l); 3348 } 3349 3350 if (dump_opt['u']) 3351 dump_label_uberblocks(label, ashift, l); 3352 3353 nvlist_free(label->config_nv); 3354 } 3355 3356 /* 3357 * Dump the L2ARC header, if existent. 3358 */ 3359 if (read_l2arc_header) 3360 error |= dump_l2arc_header(fd); 3361 3362 cookie = NULL; 3363 while ((node = avl_destroy_nodes(&config_tree, &cookie)) != NULL) 3364 umem_free(node, sizeof (cksum_record_t)); 3365 3366 cookie = NULL; 3367 while ((node = avl_destroy_nodes(&uberblock_tree, &cookie)) != NULL) 3368 umem_free(node, sizeof (cksum_record_t)); 3369 3370 avl_destroy(&config_tree); 3371 avl_destroy(&uberblock_tree); 3372 3373 (void) close(fd); 3374 3375 return (config_found == B_FALSE ? 2 : 3376 (error == B_TRUE ? 1 : 0)); 3377 } 3378 3379 static uint64_t dataset_feature_count[SPA_FEATURES]; 3380 static uint64_t remap_deadlist_count = 0; 3381 3382 static int 3383 dump_one_dir(const char *dsname, void *arg __unused) 3384 { 3385 int error; 3386 objset_t *os; 3387 3388 error = open_objset(dsname, DMU_OST_ANY, FTAG, &os); 3389 if (error != 0) 3390 return (0); 3391 3392 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) { 3393 if (!dmu_objset_ds(os)->ds_feature_inuse[f]) 3394 continue; 3395 ASSERT(spa_feature_table[f].fi_flags & 3396 ZFEATURE_FLAG_PER_DATASET); 3397 dataset_feature_count[f]++; 3398 } 3399 3400 if (dsl_dataset_remap_deadlist_exists(dmu_objset_ds(os))) { 3401 remap_deadlist_count++; 3402 } 3403 3404 dump_dir(os); 3405 close_objset(os, FTAG); 3406 fuid_table_destroy(); 3407 return (0); 3408 } 3409 3410 /* 3411 * Block statistics. 3412 */ 3413 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2) 3414 typedef struct zdb_blkstats { 3415 uint64_t zb_asize; 3416 uint64_t zb_lsize; 3417 uint64_t zb_psize; 3418 uint64_t zb_count; 3419 uint64_t zb_gangs; 3420 uint64_t zb_ditto_samevdev; 3421 uint64_t zb_ditto_same_ms; 3422 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 3423 } zdb_blkstats_t; 3424 3425 /* 3426 * Extended object types to report deferred frees and dedup auto-ditto blocks. 3427 */ 3428 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 3429 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 3430 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 3431 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 3432 3433 static const char *zdb_ot_extname[] = { 3434 "deferred free", 3435 "dedup ditto", 3436 "other", 3437 "Total", 3438 }; 3439 3440 #define ZB_TOTAL DN_MAX_LEVELS 3441 3442 typedef struct zdb_cb { 3443 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 3444 uint64_t zcb_removing_size; 3445 uint64_t zcb_checkpoint_size; 3446 uint64_t zcb_dedup_asize; 3447 uint64_t zcb_dedup_blocks; 3448 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES]; 3449 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES] 3450 [BPE_PAYLOAD_SIZE]; 3451 uint64_t zcb_start; 3452 hrtime_t zcb_lastprint; 3453 uint64_t zcb_totalasize; 3454 uint64_t zcb_errors[256]; 3455 int zcb_readfails; 3456 int zcb_haderrors; 3457 spa_t *zcb_spa; 3458 uint32_t **zcb_vd_obsolete_counts; 3459 } zdb_cb_t; 3460 3461 /* test if two DVA offsets from same vdev are within the same metaslab */ 3462 static boolean_t 3463 same_metaslab(spa_t *spa, uint64_t vdev, uint64_t off1, uint64_t off2) 3464 { 3465 vdev_t *vd = vdev_lookup_top(spa, vdev); 3466 uint64_t ms_shift = vd->vdev_ms_shift; 3467 3468 return ((off1 >> ms_shift) == (off2 >> ms_shift)); 3469 } 3470 3471 static void 3472 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 3473 dmu_object_type_t type) 3474 { 3475 uint64_t refcnt = 0; 3476 3477 ASSERT(type < ZDB_OT_TOTAL); 3478 3479 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 3480 return; 3481 3482 spa_config_enter(zcb->zcb_spa, SCL_CONFIG, FTAG, RW_READER); 3483 3484 for (int i = 0; i < 4; i++) { 3485 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 3486 int t = (i & 1) ? type : ZDB_OT_TOTAL; 3487 int equal; 3488 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 3489 3490 zb->zb_asize += BP_GET_ASIZE(bp); 3491 zb->zb_lsize += BP_GET_LSIZE(bp); 3492 zb->zb_psize += BP_GET_PSIZE(bp); 3493 zb->zb_count++; 3494 3495 /* 3496 * The histogram is only big enough to record blocks up to 3497 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last, 3498 * "other", bucket. 3499 */ 3500 unsigned idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT; 3501 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1); 3502 zb->zb_psize_histogram[idx]++; 3503 3504 zb->zb_gangs += BP_COUNT_GANG(bp); 3505 3506 switch (BP_GET_NDVAS(bp)) { 3507 case 2: 3508 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 3509 DVA_GET_VDEV(&bp->blk_dva[1])) { 3510 zb->zb_ditto_samevdev++; 3511 3512 if (same_metaslab(zcb->zcb_spa, 3513 DVA_GET_VDEV(&bp->blk_dva[0]), 3514 DVA_GET_OFFSET(&bp->blk_dva[0]), 3515 DVA_GET_OFFSET(&bp->blk_dva[1]))) 3516 zb->zb_ditto_same_ms++; 3517 } 3518 break; 3519 case 3: 3520 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == 3521 DVA_GET_VDEV(&bp->blk_dva[1])) + 3522 (DVA_GET_VDEV(&bp->blk_dva[0]) == 3523 DVA_GET_VDEV(&bp->blk_dva[2])) + 3524 (DVA_GET_VDEV(&bp->blk_dva[1]) == 3525 DVA_GET_VDEV(&bp->blk_dva[2])); 3526 if (equal != 0) { 3527 zb->zb_ditto_samevdev++; 3528 3529 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 3530 DVA_GET_VDEV(&bp->blk_dva[1]) && 3531 same_metaslab(zcb->zcb_spa, 3532 DVA_GET_VDEV(&bp->blk_dva[0]), 3533 DVA_GET_OFFSET(&bp->blk_dva[0]), 3534 DVA_GET_OFFSET(&bp->blk_dva[1]))) 3535 zb->zb_ditto_same_ms++; 3536 else if (DVA_GET_VDEV(&bp->blk_dva[0]) == 3537 DVA_GET_VDEV(&bp->blk_dva[2]) && 3538 same_metaslab(zcb->zcb_spa, 3539 DVA_GET_VDEV(&bp->blk_dva[0]), 3540 DVA_GET_OFFSET(&bp->blk_dva[0]), 3541 DVA_GET_OFFSET(&bp->blk_dva[2]))) 3542 zb->zb_ditto_same_ms++; 3543 else if (DVA_GET_VDEV(&bp->blk_dva[1]) == 3544 DVA_GET_VDEV(&bp->blk_dva[2]) && 3545 same_metaslab(zcb->zcb_spa, 3546 DVA_GET_VDEV(&bp->blk_dva[1]), 3547 DVA_GET_OFFSET(&bp->blk_dva[1]), 3548 DVA_GET_OFFSET(&bp->blk_dva[2]))) 3549 zb->zb_ditto_same_ms++; 3550 } 3551 break; 3552 } 3553 } 3554 3555 spa_config_exit(zcb->zcb_spa, SCL_CONFIG, FTAG); 3556 3557 if (BP_IS_EMBEDDED(bp)) { 3558 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++; 3559 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)] 3560 [BPE_GET_PSIZE(bp)]++; 3561 return; 3562 } 3563 3564 if (dump_opt['L']) 3565 return; 3566 3567 if (BP_GET_DEDUP(bp)) { 3568 ddt_t *ddt; 3569 ddt_entry_t *dde; 3570 3571 ddt = ddt_select(zcb->zcb_spa, bp); 3572 ddt_enter(ddt); 3573 dde = ddt_lookup(ddt, bp, B_FALSE); 3574 3575 if (dde == NULL) { 3576 refcnt = 0; 3577 } else { 3578 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 3579 ddt_phys_decref(ddp); 3580 refcnt = ddp->ddp_refcnt; 3581 if (ddt_phys_total_refcnt(dde) == 0) 3582 ddt_remove(ddt, dde); 3583 } 3584 ddt_exit(ddt); 3585 } 3586 3587 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 3588 refcnt ? 0 : spa_min_claim_txg(zcb->zcb_spa), 3589 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 3590 } 3591 3592 static void 3593 zdb_blkptr_done(zio_t *zio) 3594 { 3595 spa_t *spa = zio->io_spa; 3596 blkptr_t *bp = zio->io_bp; 3597 int ioerr = zio->io_error; 3598 zdb_cb_t *zcb = zio->io_private; 3599 zbookmark_phys_t *zb = &zio->io_bookmark; 3600 3601 abd_free(zio->io_abd); 3602 3603 mutex_enter(&spa->spa_scrub_lock); 3604 spa->spa_load_verify_ios--; 3605 cv_broadcast(&spa->spa_scrub_io_cv); 3606 3607 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 3608 char blkbuf[BP_SPRINTF_LEN]; 3609 3610 zcb->zcb_haderrors = 1; 3611 zcb->zcb_errors[ioerr]++; 3612 3613 if (dump_opt['b'] >= 2) 3614 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 3615 else 3616 blkbuf[0] = '\0'; 3617 3618 (void) printf("zdb_blkptr_cb: " 3619 "Got error %d reading " 3620 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 3621 ioerr, 3622 (u_longlong_t)zb->zb_objset, 3623 (u_longlong_t)zb->zb_object, 3624 (u_longlong_t)zb->zb_level, 3625 (u_longlong_t)zb->zb_blkid, 3626 blkbuf); 3627 } 3628 mutex_exit(&spa->spa_scrub_lock); 3629 } 3630 3631 static int 3632 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 3633 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 3634 { 3635 zdb_cb_t *zcb = arg; 3636 dmu_object_type_t type; 3637 boolean_t is_metadata; 3638 3639 if (bp == NULL) 3640 return (0); 3641 3642 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) { 3643 char blkbuf[BP_SPRINTF_LEN]; 3644 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 3645 (void) printf("objset %llu object %llu " 3646 "level %lld offset 0x%llx %s\n", 3647 (u_longlong_t)zb->zb_objset, 3648 (u_longlong_t)zb->zb_object, 3649 (longlong_t)zb->zb_level, 3650 (u_longlong_t)blkid2offset(dnp, bp, zb), 3651 blkbuf); 3652 } 3653 3654 if (BP_IS_HOLE(bp)) 3655 return (0); 3656 3657 type = BP_GET_TYPE(bp); 3658 3659 zdb_count_block(zcb, zilog, bp, 3660 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 3661 3662 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 3663 3664 if (!BP_IS_EMBEDDED(bp) && 3665 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) { 3666 size_t size = BP_GET_PSIZE(bp); 3667 abd_t *abd = abd_alloc(size, B_FALSE); 3668 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 3669 3670 /* If it's an intent log block, failure is expected. */ 3671 if (zb->zb_level == ZB_ZIL_LEVEL) 3672 flags |= ZIO_FLAG_SPECULATIVE; 3673 3674 mutex_enter(&spa->spa_scrub_lock); 3675 while (spa->spa_load_verify_ios > max_inflight) 3676 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 3677 spa->spa_load_verify_ios++; 3678 mutex_exit(&spa->spa_scrub_lock); 3679 3680 zio_nowait(zio_read(NULL, spa, bp, abd, size, 3681 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 3682 } 3683 3684 zcb->zcb_readfails = 0; 3685 3686 /* only call gethrtime() every 100 blocks */ 3687 static int iters; 3688 if (++iters > 100) 3689 iters = 0; 3690 else 3691 return (0); 3692 3693 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) { 3694 uint64_t now = gethrtime(); 3695 char buf[10]; 3696 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 3697 int kb_per_sec = 3698 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 3699 int sec_remaining = 3700 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 3701 3702 /* make sure nicenum has enough space */ 3703 CTASSERT(sizeof (buf) >= NN_NUMBUF_SZ); 3704 3705 zfs_nicebytes(bytes, buf, sizeof (buf)); 3706 (void) fprintf(stderr, 3707 "\r%5s completed (%4dMB/s) " 3708 "estimated time remaining: %uhr %02umin %02usec ", 3709 buf, kb_per_sec / 1024, 3710 sec_remaining / 60 / 60, 3711 sec_remaining / 60 % 60, 3712 sec_remaining % 60); 3713 3714 zcb->zcb_lastprint = now; 3715 } 3716 3717 return (0); 3718 } 3719 3720 static void 3721 zdb_leak(void *arg, uint64_t start, uint64_t size) 3722 { 3723 vdev_t *vd = arg; 3724 3725 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 3726 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 3727 } 3728 3729 static metaslab_ops_t zdb_metaslab_ops = { 3730 NULL /* alloc */ 3731 }; 3732 3733 typedef int (*zdb_log_sm_cb_t)(spa_t *spa, space_map_entry_t *sme, 3734 uint64_t txg, void *arg); 3735 3736 typedef struct unflushed_iter_cb_arg { 3737 spa_t *uic_spa; 3738 uint64_t uic_txg; 3739 void *uic_arg; 3740 zdb_log_sm_cb_t uic_cb; 3741 } unflushed_iter_cb_arg_t; 3742 3743 static int 3744 iterate_through_spacemap_logs_cb(space_map_entry_t *sme, void *arg) 3745 { 3746 unflushed_iter_cb_arg_t *uic = arg; 3747 3748 return (uic->uic_cb(uic->uic_spa, sme, uic->uic_txg, uic->uic_arg)); 3749 } 3750 3751 static void 3752 iterate_through_spacemap_logs(spa_t *spa, zdb_log_sm_cb_t cb, void *arg) 3753 { 3754 if (!spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP)) 3755 return; 3756 3757 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 3758 for (spa_log_sm_t *sls = avl_first(&spa->spa_sm_logs_by_txg); 3759 sls; sls = AVL_NEXT(&spa->spa_sm_logs_by_txg, sls)) { 3760 space_map_t *sm = NULL; 3761 VERIFY0(space_map_open(&sm, spa_meta_objset(spa), 3762 sls->sls_sm_obj, 0, UINT64_MAX, SPA_MINBLOCKSHIFT)); 3763 3764 unflushed_iter_cb_arg_t uic = { 3765 .uic_spa = spa, 3766 .uic_txg = sls->sls_txg, 3767 .uic_arg = arg, 3768 .uic_cb = cb 3769 }; 3770 3771 VERIFY0(space_map_iterate(sm, space_map_length(sm), 3772 iterate_through_spacemap_logs_cb, &uic)); 3773 space_map_close(sm); 3774 } 3775 spa_config_exit(spa, SCL_CONFIG, FTAG); 3776 } 3777 3778 /* ARGSUSED */ 3779 static int 3780 load_unflushed_svr_segs_cb(spa_t *spa, space_map_entry_t *sme, 3781 uint64_t txg, void *arg) 3782 { 3783 spa_vdev_removal_t *svr = arg; 3784 3785 uint64_t offset = sme->sme_offset; 3786 uint64_t size = sme->sme_run; 3787 3788 /* skip vdevs we don't care about */ 3789 if (sme->sme_vdev != svr->svr_vdev_id) 3790 return (0); 3791 3792 vdev_t *vd = vdev_lookup_top(spa, sme->sme_vdev); 3793 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 3794 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE); 3795 3796 if (txg < metaslab_unflushed_txg(ms)) 3797 return (0); 3798 3799 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 3800 ASSERT(vim != NULL); 3801 if (offset >= vdev_indirect_mapping_max_offset(vim)) 3802 return (0); 3803 3804 if (sme->sme_type == SM_ALLOC) 3805 range_tree_add(svr->svr_allocd_segs, offset, size); 3806 else 3807 range_tree_remove(svr->svr_allocd_segs, offset, size); 3808 3809 return (0); 3810 } 3811 3812 static void 3813 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 3814 { 3815 ddt_bookmark_t ddb; 3816 ddt_entry_t dde; 3817 int error; 3818 3819 ASSERT(!dump_opt['L']); 3820 3821 bzero(&ddb, sizeof (ddb)); 3822 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 3823 blkptr_t blk; 3824 ddt_phys_t *ddp = dde.dde_phys; 3825 3826 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 3827 return; 3828 3829 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 3830 3831 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 3832 if (ddp->ddp_phys_birth == 0) 3833 continue; 3834 ddt_bp_create(ddb.ddb_checksum, 3835 &dde.dde_key, ddp, &blk); 3836 if (p == DDT_PHYS_DITTO) { 3837 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 3838 } else { 3839 zcb->zcb_dedup_asize += 3840 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 3841 zcb->zcb_dedup_blocks++; 3842 } 3843 } 3844 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 3845 ddt_enter(ddt); 3846 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 3847 ddt_exit(ddt); 3848 } 3849 3850 ASSERT(error == ENOENT); 3851 } 3852 3853 /* ARGSUSED */ 3854 static void 3855 claim_segment_impl_cb(uint64_t inner_offset, vdev_t *vd, uint64_t offset, 3856 uint64_t size, void *arg) 3857 { 3858 /* 3859 * This callback was called through a remap from 3860 * a device being removed. Therefore, the vdev that 3861 * this callback is applied to is a concrete 3862 * vdev. 3863 */ 3864 ASSERT(vdev_is_concrete(vd)); 3865 3866 VERIFY0(metaslab_claim_impl(vd, offset, size, 3867 spa_min_claim_txg(vd->vdev_spa))); 3868 } 3869 3870 static void 3871 claim_segment_cb(void *arg, uint64_t offset, uint64_t size) 3872 { 3873 vdev_t *vd = arg; 3874 3875 vdev_indirect_ops.vdev_op_remap(vd, offset, size, 3876 claim_segment_impl_cb, NULL); 3877 } 3878 3879 /* 3880 * After accounting for all allocated blocks that are directly referenced, 3881 * we might have missed a reference to a block from a partially complete 3882 * (and thus unused) indirect mapping object. We perform a secondary pass 3883 * through the metaslabs we have already mapped and claim the destination 3884 * blocks. 3885 */ 3886 static void 3887 zdb_claim_removing(spa_t *spa, zdb_cb_t *zcb) 3888 { 3889 if (dump_opt['L']) 3890 return; 3891 3892 if (spa->spa_vdev_removal == NULL) 3893 return; 3894 3895 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 3896 3897 spa_vdev_removal_t *svr = spa->spa_vdev_removal; 3898 vdev_t *vd = vdev_lookup_top(spa, svr->svr_vdev_id); 3899 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 3900 3901 ASSERT0(range_tree_space(svr->svr_allocd_segs)); 3902 3903 range_tree_t *allocs = range_tree_create(NULL, RANGE_SEG64, NULL, 0, 0); 3904 for (uint64_t msi = 0; msi < vd->vdev_ms_count; msi++) { 3905 metaslab_t *msp = vd->vdev_ms[msi]; 3906 3907 if (msp->ms_start >= vdev_indirect_mapping_max_offset(vim)) 3908 break; 3909 3910 ASSERT0(range_tree_space(allocs)); 3911 if (msp->ms_sm != NULL) 3912 VERIFY0(space_map_load(msp->ms_sm, allocs, SM_ALLOC)); 3913 range_tree_vacate(allocs, range_tree_add, svr->svr_allocd_segs); 3914 } 3915 range_tree_destroy(allocs); 3916 3917 iterate_through_spacemap_logs(spa, load_unflushed_svr_segs_cb, svr); 3918 3919 /* 3920 * Clear everything past what has been synced, 3921 * because we have not allocated mappings for 3922 * it yet. 3923 */ 3924 range_tree_clear(svr->svr_allocd_segs, 3925 vdev_indirect_mapping_max_offset(vim), 3926 vd->vdev_asize - vdev_indirect_mapping_max_offset(vim)); 3927 3928 zcb->zcb_removing_size += range_tree_space(svr->svr_allocd_segs); 3929 range_tree_vacate(svr->svr_allocd_segs, claim_segment_cb, vd); 3930 3931 spa_config_exit(spa, SCL_CONFIG, FTAG); 3932 } 3933 3934 /* ARGSUSED */ 3935 static int 3936 increment_indirect_mapping_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 3937 { 3938 zdb_cb_t *zcb = arg; 3939 spa_t *spa = zcb->zcb_spa; 3940 vdev_t *vd; 3941 const dva_t *dva = &bp->blk_dva[0]; 3942 3943 ASSERT(!dump_opt['L']); 3944 ASSERT3U(BP_GET_NDVAS(bp), ==, 1); 3945 3946 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER); 3947 vd = vdev_lookup_top(zcb->zcb_spa, DVA_GET_VDEV(dva)); 3948 ASSERT3P(vd, !=, NULL); 3949 spa_config_exit(spa, SCL_VDEV, FTAG); 3950 3951 ASSERT(vd->vdev_indirect_config.vic_mapping_object != 0); 3952 ASSERT3P(zcb->zcb_vd_obsolete_counts[vd->vdev_id], !=, NULL); 3953 3954 vdev_indirect_mapping_increment_obsolete_count( 3955 vd->vdev_indirect_mapping, 3956 DVA_GET_OFFSET(dva), DVA_GET_ASIZE(dva), 3957 zcb->zcb_vd_obsolete_counts[vd->vdev_id]); 3958 3959 return (0); 3960 } 3961 3962 static uint32_t * 3963 zdb_load_obsolete_counts(vdev_t *vd) 3964 { 3965 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 3966 spa_t *spa = vd->vdev_spa; 3967 spa_condensing_indirect_phys_t *scip = 3968 &spa->spa_condensing_indirect_phys; 3969 uint32_t *counts; 3970 3971 EQUIV(vdev_obsolete_sm_object(vd) != 0, vd->vdev_obsolete_sm != NULL); 3972 counts = vdev_indirect_mapping_load_obsolete_counts(vim); 3973 if (vd->vdev_obsolete_sm != NULL) { 3974 vdev_indirect_mapping_load_obsolete_spacemap(vim, counts, 3975 vd->vdev_obsolete_sm); 3976 } 3977 if (scip->scip_vdev == vd->vdev_id && 3978 scip->scip_prev_obsolete_sm_object != 0) { 3979 space_map_t *prev_obsolete_sm = NULL; 3980 VERIFY0(space_map_open(&prev_obsolete_sm, spa->spa_meta_objset, 3981 scip->scip_prev_obsolete_sm_object, 0, vd->vdev_asize, 0)); 3982 vdev_indirect_mapping_load_obsolete_spacemap(vim, counts, 3983 prev_obsolete_sm); 3984 space_map_close(prev_obsolete_sm); 3985 } 3986 return (counts); 3987 } 3988 3989 typedef struct checkpoint_sm_exclude_entry_arg { 3990 vdev_t *cseea_vd; 3991 uint64_t cseea_checkpoint_size; 3992 } checkpoint_sm_exclude_entry_arg_t; 3993 3994 static int 3995 checkpoint_sm_exclude_entry_cb(space_map_entry_t *sme, void *arg) 3996 { 3997 checkpoint_sm_exclude_entry_arg_t *cseea = arg; 3998 vdev_t *vd = cseea->cseea_vd; 3999 metaslab_t *ms = vd->vdev_ms[sme->sme_offset >> vd->vdev_ms_shift]; 4000 uint64_t end = sme->sme_offset + sme->sme_run; 4001 4002 ASSERT(sme->sme_type == SM_FREE); 4003 4004 /* 4005 * Since the vdev_checkpoint_sm exists in the vdev level 4006 * and the ms_sm space maps exist in the metaslab level, 4007 * an entry in the checkpoint space map could theoretically 4008 * cross the boundaries of the metaslab that it belongs. 4009 * 4010 * In reality, because of the way that we populate and 4011 * manipulate the checkpoint's space maps currently, 4012 * there shouldn't be any entries that cross metaslabs. 4013 * Hence the assertion below. 4014 * 4015 * That said, there is no fundamental requirement that 4016 * the checkpoint's space map entries should not cross 4017 * metaslab boundaries. So if needed we could add code 4018 * that handles metaslab-crossing segments in the future. 4019 */ 4020 VERIFY3U(sme->sme_offset, >=, ms->ms_start); 4021 VERIFY3U(end, <=, ms->ms_start + ms->ms_size); 4022 4023 /* 4024 * By removing the entry from the allocated segments we 4025 * also verify that the entry is there to begin with. 4026 */ 4027 mutex_enter(&ms->ms_lock); 4028 range_tree_remove(ms->ms_allocatable, sme->sme_offset, sme->sme_run); 4029 mutex_exit(&ms->ms_lock); 4030 4031 cseea->cseea_checkpoint_size += sme->sme_run; 4032 return (0); 4033 } 4034 4035 static void 4036 zdb_leak_init_vdev_exclude_checkpoint(vdev_t *vd, zdb_cb_t *zcb) 4037 { 4038 spa_t *spa = vd->vdev_spa; 4039 space_map_t *checkpoint_sm = NULL; 4040 uint64_t checkpoint_sm_obj; 4041 4042 /* 4043 * If there is no vdev_top_zap, we are in a pool whose 4044 * version predates the pool checkpoint feature. 4045 */ 4046 if (vd->vdev_top_zap == 0) 4047 return; 4048 4049 /* 4050 * If there is no reference of the vdev_checkpoint_sm in 4051 * the vdev_top_zap, then one of the following scenarios 4052 * is true: 4053 * 4054 * 1] There is no checkpoint 4055 * 2] There is a checkpoint, but no checkpointed blocks 4056 * have been freed yet 4057 * 3] The current vdev is indirect 4058 * 4059 * In these cases we return immediately. 4060 */ 4061 if (zap_contains(spa_meta_objset(spa), vd->vdev_top_zap, 4062 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0) 4063 return; 4064 4065 VERIFY0(zap_lookup(spa_meta_objset(spa), vd->vdev_top_zap, 4066 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, sizeof (uint64_t), 1, 4067 &checkpoint_sm_obj)); 4068 4069 checkpoint_sm_exclude_entry_arg_t cseea; 4070 cseea.cseea_vd = vd; 4071 cseea.cseea_checkpoint_size = 0; 4072 4073 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(spa), 4074 checkpoint_sm_obj, 0, vd->vdev_asize, vd->vdev_ashift)); 4075 4076 VERIFY0(space_map_iterate(checkpoint_sm, 4077 space_map_length(checkpoint_sm), 4078 checkpoint_sm_exclude_entry_cb, &cseea)); 4079 space_map_close(checkpoint_sm); 4080 4081 zcb->zcb_checkpoint_size += cseea.cseea_checkpoint_size; 4082 } 4083 4084 static void 4085 zdb_leak_init_exclude_checkpoint(spa_t *spa, zdb_cb_t *zcb) 4086 { 4087 ASSERT(!dump_opt['L']); 4088 4089 vdev_t *rvd = spa->spa_root_vdev; 4090 for (uint64_t c = 0; c < rvd->vdev_children; c++) { 4091 ASSERT3U(c, ==, rvd->vdev_child[c]->vdev_id); 4092 zdb_leak_init_vdev_exclude_checkpoint(rvd->vdev_child[c], zcb); 4093 } 4094 } 4095 4096 static int 4097 count_unflushed_space_cb(spa_t *spa, space_map_entry_t *sme, 4098 uint64_t txg, void *arg) 4099 { 4100 int64_t *ualloc_space = arg; 4101 uint64_t offset = sme->sme_offset; 4102 uint64_t vdev_id = sme->sme_vdev; 4103 4104 vdev_t *vd = vdev_lookup_top(spa, vdev_id); 4105 if (!vdev_is_concrete(vd)) 4106 return (0); 4107 4108 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 4109 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE); 4110 4111 if (txg < metaslab_unflushed_txg(ms)) 4112 return (0); 4113 4114 if (sme->sme_type == SM_ALLOC) 4115 *ualloc_space += sme->sme_run; 4116 else 4117 *ualloc_space -= sme->sme_run; 4118 4119 return (0); 4120 } 4121 4122 static int64_t 4123 get_unflushed_alloc_space(spa_t *spa) 4124 { 4125 if (dump_opt['L']) 4126 return (0); 4127 4128 int64_t ualloc_space = 0; 4129 iterate_through_spacemap_logs(spa, count_unflushed_space_cb, 4130 &ualloc_space); 4131 return (ualloc_space); 4132 } 4133 4134 static int 4135 load_unflushed_cb(spa_t *spa, space_map_entry_t *sme, uint64_t txg, void *arg) 4136 { 4137 maptype_t *uic_maptype = arg; 4138 uint64_t offset = sme->sme_offset; 4139 uint64_t size = sme->sme_run; 4140 uint64_t vdev_id = sme->sme_vdev; 4141 vdev_t *vd = vdev_lookup_top(spa, vdev_id); 4142 4143 /* skip indirect vdevs */ 4144 if (!vdev_is_concrete(vd)) 4145 return (0); 4146 4147 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 4148 4149 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE); 4150 ASSERT(*uic_maptype == SM_ALLOC || *uic_maptype == SM_FREE); 4151 4152 if (txg < metaslab_unflushed_txg(ms)) 4153 return (0); 4154 4155 if (*uic_maptype == sme->sme_type) 4156 range_tree_add(ms->ms_allocatable, offset, size); 4157 else 4158 range_tree_remove(ms->ms_allocatable, offset, size); 4159 4160 return (0); 4161 } 4162 4163 static void 4164 load_unflushed_to_ms_allocatables(spa_t *spa, maptype_t maptype) 4165 { 4166 iterate_through_spacemap_logs(spa, load_unflushed_cb, &maptype); 4167 } 4168 4169 static void 4170 load_concrete_ms_allocatable_trees(spa_t *spa, maptype_t maptype) 4171 { 4172 vdev_t *rvd = spa->spa_root_vdev; 4173 for (uint64_t i = 0; i < rvd->vdev_children; i++) { 4174 vdev_t *vd = rvd->vdev_child[i]; 4175 4176 ASSERT3U(i, ==, vd->vdev_id); 4177 4178 if (vd->vdev_ops == &vdev_indirect_ops) 4179 continue; 4180 4181 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 4182 metaslab_t *msp = vd->vdev_ms[m]; 4183 4184 (void) fprintf(stderr, 4185 "\rloading concrete vdev %llu, " 4186 "metaslab %llu of %llu ...", 4187 (longlong_t)vd->vdev_id, 4188 (longlong_t)msp->ms_id, 4189 (longlong_t)vd->vdev_ms_count); 4190 4191 mutex_enter(&msp->ms_lock); 4192 range_tree_vacate(msp->ms_allocatable, NULL, NULL); 4193 4194 /* 4195 * We don't want to spend the CPU manipulating the 4196 * size-ordered tree, so clear the range_tree ops. 4197 */ 4198 msp->ms_allocatable->rt_ops = NULL; 4199 4200 if (msp->ms_sm != NULL) { 4201 VERIFY0(space_map_load(msp->ms_sm, 4202 msp->ms_allocatable, maptype)); 4203 } 4204 if (!msp->ms_loaded) 4205 msp->ms_loaded = B_TRUE; 4206 mutex_exit(&msp->ms_lock); 4207 } 4208 } 4209 4210 load_unflushed_to_ms_allocatables(spa, maptype); 4211 } 4212 4213 /* 4214 * vm_idxp is an in-out parameter which (for indirect vdevs) is the 4215 * index in vim_entries that has the first entry in this metaslab. 4216 * On return, it will be set to the first entry after this metaslab. 4217 */ 4218 static void 4219 load_indirect_ms_allocatable_tree(vdev_t *vd, metaslab_t *msp, 4220 uint64_t *vim_idxp) 4221 { 4222 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 4223 4224 mutex_enter(&msp->ms_lock); 4225 range_tree_vacate(msp->ms_allocatable, NULL, NULL); 4226 4227 /* 4228 * We don't want to spend the CPU manipulating the 4229 * size-ordered tree, so clear the range_tree ops. 4230 */ 4231 msp->ms_allocatable->rt_ops = NULL; 4232 4233 for (; *vim_idxp < vdev_indirect_mapping_num_entries(vim); 4234 (*vim_idxp)++) { 4235 vdev_indirect_mapping_entry_phys_t *vimep = 4236 &vim->vim_entries[*vim_idxp]; 4237 uint64_t ent_offset = DVA_MAPPING_GET_SRC_OFFSET(vimep); 4238 uint64_t ent_len = DVA_GET_ASIZE(&vimep->vimep_dst); 4239 ASSERT3U(ent_offset, >=, msp->ms_start); 4240 if (ent_offset >= msp->ms_start + msp->ms_size) 4241 break; 4242 4243 /* 4244 * Mappings do not cross metaslab boundaries, 4245 * because we create them by walking the metaslabs. 4246 */ 4247 ASSERT3U(ent_offset + ent_len, <=, 4248 msp->ms_start + msp->ms_size); 4249 range_tree_add(msp->ms_allocatable, ent_offset, ent_len); 4250 } 4251 4252 if (!msp->ms_loaded) 4253 msp->ms_loaded = B_TRUE; 4254 mutex_exit(&msp->ms_lock); 4255 } 4256 4257 static void 4258 zdb_leak_init_prepare_indirect_vdevs(spa_t *spa, zdb_cb_t *zcb) 4259 { 4260 ASSERT(!dump_opt['L']); 4261 4262 vdev_t *rvd = spa->spa_root_vdev; 4263 for (uint64_t c = 0; c < rvd->vdev_children; c++) { 4264 vdev_t *vd = rvd->vdev_child[c]; 4265 4266 ASSERT3U(c, ==, vd->vdev_id); 4267 4268 if (vd->vdev_ops != &vdev_indirect_ops) 4269 continue; 4270 4271 /* 4272 * Note: we don't check for mapping leaks on 4273 * removing vdevs because their ms_allocatable's 4274 * are used to look for leaks in allocated space. 4275 */ 4276 zcb->zcb_vd_obsolete_counts[c] = zdb_load_obsolete_counts(vd); 4277 4278 /* 4279 * Normally, indirect vdevs don't have any 4280 * metaslabs. We want to set them up for 4281 * zio_claim(). 4282 */ 4283 VERIFY0(vdev_metaslab_init(vd, 0)); 4284 4285 #if defined(DEBUG) 4286 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 4287 #endif 4288 uint64_t vim_idx = 0; 4289 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 4290 4291 (void) fprintf(stderr, 4292 "\rloading indirect vdev %llu, " 4293 "metaslab %llu of %llu ...", 4294 (longlong_t)vd->vdev_id, 4295 (longlong_t)vd->vdev_ms[m]->ms_id, 4296 (longlong_t)vd->vdev_ms_count); 4297 4298 load_indirect_ms_allocatable_tree(vd, vd->vdev_ms[m], 4299 &vim_idx); 4300 } 4301 ASSERT3U(vim_idx, ==, vdev_indirect_mapping_num_entries(vim)); 4302 } 4303 } 4304 4305 static void 4306 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 4307 { 4308 zcb->zcb_spa = spa; 4309 4310 if (dump_opt['L']) 4311 return; 4312 4313 dsl_pool_t *dp = spa->spa_dsl_pool; 4314 vdev_t *rvd = spa->spa_root_vdev; 4315 4316 /* 4317 * We are going to be changing the meaning of the metaslab's 4318 * ms_allocatable. Ensure that the allocator doesn't try to 4319 * use the tree. 4320 */ 4321 spa->spa_normal_class->mc_ops = &zdb_metaslab_ops; 4322 spa->spa_log_class->mc_ops = &zdb_metaslab_ops; 4323 4324 zcb->zcb_vd_obsolete_counts = 4325 umem_zalloc(rvd->vdev_children * sizeof (uint32_t *), 4326 UMEM_NOFAIL); 4327 4328 /* 4329 * For leak detection, we overload the ms_allocatable trees 4330 * to contain allocated segments instead of free segments. 4331 * As a result, we can't use the normal metaslab_load/unload 4332 * interfaces. 4333 */ 4334 zdb_leak_init_prepare_indirect_vdevs(spa, zcb); 4335 load_concrete_ms_allocatable_trees(spa, SM_ALLOC); 4336 4337 /* 4338 * On load_concrete_ms_allocatable_trees() we loaded all the 4339 * allocated entries from the ms_sm to the ms_allocatable for 4340 * each metaslab. If the pool has a checkpoint or is in the 4341 * middle of discarding a checkpoint, some of these blocks 4342 * may have been freed but their ms_sm may not have been 4343 * updated because they are referenced by the checkpoint. In 4344 * order to avoid false-positives during leak-detection, we 4345 * go through the vdev's checkpoint space map and exclude all 4346 * its entries from their relevant ms_allocatable. 4347 * 4348 * We also aggregate the space held by the checkpoint and add 4349 * it to zcb_checkpoint_size. 4350 * 4351 * Note that at this point we are also verifying that all the 4352 * entries on the checkpoint_sm are marked as allocated in 4353 * the ms_sm of their relevant metaslab. 4354 * [see comment in checkpoint_sm_exclude_entry_cb()] 4355 */ 4356 zdb_leak_init_exclude_checkpoint(spa, zcb); 4357 ASSERT3U(zcb->zcb_checkpoint_size, ==, spa_get_checkpoint_space(spa)); 4358 4359 /* for cleaner progress output */ 4360 (void) fprintf(stderr, "\n"); 4361 4362 if (bpobj_is_open(&dp->dp_obsolete_bpobj)) { 4363 ASSERT(spa_feature_is_enabled(spa, 4364 SPA_FEATURE_DEVICE_REMOVAL)); 4365 (void) bpobj_iterate_nofree(&dp->dp_obsolete_bpobj, 4366 increment_indirect_mapping_cb, zcb, NULL); 4367 } 4368 4369 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 4370 zdb_ddt_leak_init(spa, zcb); 4371 spa_config_exit(spa, SCL_CONFIG, FTAG); 4372 } 4373 4374 static boolean_t 4375 zdb_check_for_obsolete_leaks(vdev_t *vd, zdb_cb_t *zcb) 4376 { 4377 boolean_t leaks = B_FALSE; 4378 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 4379 uint64_t total_leaked = 0; 4380 4381 ASSERT(vim != NULL); 4382 4383 for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) { 4384 vdev_indirect_mapping_entry_phys_t *vimep = 4385 &vim->vim_entries[i]; 4386 uint64_t obsolete_bytes = 0; 4387 uint64_t offset = DVA_MAPPING_GET_SRC_OFFSET(vimep); 4388 metaslab_t *msp = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 4389 4390 /* 4391 * This is not very efficient but it's easy to 4392 * verify correctness. 4393 */ 4394 for (uint64_t inner_offset = 0; 4395 inner_offset < DVA_GET_ASIZE(&vimep->vimep_dst); 4396 inner_offset += 1 << vd->vdev_ashift) { 4397 if (range_tree_contains(msp->ms_allocatable, 4398 offset + inner_offset, 1 << vd->vdev_ashift)) { 4399 obsolete_bytes += 1 << vd->vdev_ashift; 4400 } 4401 } 4402 4403 int64_t bytes_leaked = obsolete_bytes - 4404 zcb->zcb_vd_obsolete_counts[vd->vdev_id][i]; 4405 ASSERT3U(DVA_GET_ASIZE(&vimep->vimep_dst), >=, 4406 zcb->zcb_vd_obsolete_counts[vd->vdev_id][i]); 4407 if (bytes_leaked != 0 && 4408 (vdev_obsolete_counts_are_precise(vd) || 4409 dump_opt['d'] >= 5)) { 4410 (void) printf("obsolete indirect mapping count " 4411 "mismatch on %llu:%llx:%llx : %llx bytes leaked\n", 4412 (u_longlong_t)vd->vdev_id, 4413 (u_longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep), 4414 (u_longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst), 4415 (u_longlong_t)bytes_leaked); 4416 } 4417 total_leaked += ABS(bytes_leaked); 4418 } 4419 4420 if (!vdev_obsolete_counts_are_precise(vd) && total_leaked > 0) { 4421 int pct_leaked = total_leaked * 100 / 4422 vdev_indirect_mapping_bytes_mapped(vim); 4423 (void) printf("cannot verify obsolete indirect mapping " 4424 "counts of vdev %llu because precise feature was not " 4425 "enabled when it was removed: %d%% (%llx bytes) of mapping" 4426 "unreferenced\n", 4427 (u_longlong_t)vd->vdev_id, pct_leaked, 4428 (u_longlong_t)total_leaked); 4429 } else if (total_leaked > 0) { 4430 (void) printf("obsolete indirect mapping count mismatch " 4431 "for vdev %llu -- %llx total bytes mismatched\n", 4432 (u_longlong_t)vd->vdev_id, 4433 (u_longlong_t)total_leaked); 4434 leaks |= B_TRUE; 4435 } 4436 4437 vdev_indirect_mapping_free_obsolete_counts(vim, 4438 zcb->zcb_vd_obsolete_counts[vd->vdev_id]); 4439 zcb->zcb_vd_obsolete_counts[vd->vdev_id] = NULL; 4440 4441 return (leaks); 4442 } 4443 4444 static boolean_t 4445 zdb_leak_fini(spa_t *spa, zdb_cb_t *zcb) 4446 { 4447 if (dump_opt['L']) 4448 return (B_FALSE); 4449 4450 boolean_t leaks = B_FALSE; 4451 4452 vdev_t *rvd = spa->spa_root_vdev; 4453 for (unsigned c = 0; c < rvd->vdev_children; c++) { 4454 vdev_t *vd = rvd->vdev_child[c]; 4455 #if DEBUG 4456 metaslab_group_t *mg = vd->vdev_mg; 4457 #endif 4458 4459 if (zcb->zcb_vd_obsolete_counts[c] != NULL) { 4460 leaks |= zdb_check_for_obsolete_leaks(vd, zcb); 4461 } 4462 4463 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 4464 metaslab_t *msp = vd->vdev_ms[m]; 4465 ASSERT3P(mg, ==, msp->ms_group); 4466 4467 /* 4468 * ms_allocatable has been overloaded 4469 * to contain allocated segments. Now that 4470 * we finished traversing all blocks, any 4471 * block that remains in the ms_allocatable 4472 * represents an allocated block that we 4473 * did not claim during the traversal. 4474 * Claimed blocks would have been removed 4475 * from the ms_allocatable. For indirect 4476 * vdevs, space remaining in the tree 4477 * represents parts of the mapping that are 4478 * not referenced, which is not a bug. 4479 */ 4480 if (vd->vdev_ops == &vdev_indirect_ops) { 4481 range_tree_vacate(msp->ms_allocatable, 4482 NULL, NULL); 4483 } else { 4484 range_tree_vacate(msp->ms_allocatable, 4485 zdb_leak, vd); 4486 } 4487 if (msp->ms_loaded) { 4488 msp->ms_loaded = B_FALSE; 4489 } 4490 } 4491 4492 } 4493 4494 umem_free(zcb->zcb_vd_obsolete_counts, 4495 rvd->vdev_children * sizeof (uint32_t *)); 4496 zcb->zcb_vd_obsolete_counts = NULL; 4497 4498 return (leaks); 4499 } 4500 4501 /* ARGSUSED */ 4502 static int 4503 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 4504 { 4505 zdb_cb_t *zcb = arg; 4506 4507 if (dump_opt['b'] >= 5) { 4508 char blkbuf[BP_SPRINTF_LEN]; 4509 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 4510 (void) printf("[%s] %s\n", 4511 "deferred free", blkbuf); 4512 } 4513 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 4514 return (0); 4515 } 4516 4517 static int 4518 dump_block_stats(spa_t *spa) 4519 { 4520 zdb_cb_t zcb; 4521 zdb_blkstats_t *zb, *tzb; 4522 uint64_t norm_alloc, norm_space, total_alloc, total_found; 4523 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | 4524 TRAVERSE_NO_DECRYPT | TRAVERSE_HARD; 4525 boolean_t leaks = B_FALSE; 4526 int err; 4527 4528 bzero(&zcb, sizeof (zcb)); 4529 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 4530 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 4531 (dump_opt['c'] == 1) ? "metadata " : "", 4532 dump_opt['c'] ? "checksums " : "", 4533 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 4534 !dump_opt['L'] ? "nothing leaked " : ""); 4535 4536 /* 4537 * When leak detection is enabled we load all space maps as SM_ALLOC 4538 * maps, then traverse the pool claiming each block we discover. If 4539 * the pool is perfectly consistent, the segment trees will be empty 4540 * when we're done. Anything left over is a leak; any block we can't 4541 * claim (because it's not part of any space map) is a double 4542 * allocation, reference to a freed block, or an unclaimed log block. 4543 * 4544 * When leak detection is disabled (-L option) we still traverse the 4545 * pool claiming each block we discover, but we skip opening any space 4546 * maps. 4547 */ 4548 bzero(&zcb, sizeof (zdb_cb_t)); 4549 zdb_leak_init(spa, &zcb); 4550 4551 /* 4552 * If there's a deferred-free bplist, process that first. 4553 */ 4554 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 4555 count_block_cb, &zcb, NULL); 4556 4557 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 4558 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 4559 count_block_cb, &zcb, NULL); 4560 } 4561 4562 zdb_claim_removing(spa, &zcb); 4563 4564 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 4565 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 4566 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 4567 &zcb, NULL)); 4568 } 4569 4570 if (dump_opt['c'] > 1) 4571 flags |= TRAVERSE_PREFETCH_DATA; 4572 4573 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 4574 zcb.zcb_totalasize += metaslab_class_get_alloc(spa_special_class(spa)); 4575 zcb.zcb_totalasize += metaslab_class_get_alloc(spa_dedup_class(spa)); 4576 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 4577 err = traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 4578 4579 /* 4580 * If we've traversed the data blocks then we need to wait for those 4581 * I/Os to complete. We leverage "The Godfather" zio to wait on 4582 * all async I/Os to complete. 4583 */ 4584 if (dump_opt['c']) { 4585 for (int i = 0; i < max_ncpus; i++) { 4586 (void) zio_wait(spa->spa_async_zio_root[i]); 4587 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL, 4588 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 4589 ZIO_FLAG_GODFATHER); 4590 } 4591 } 4592 4593 /* 4594 * Done after zio_wait() since zcb_haderrors is modified in 4595 * zdb_blkptr_done() 4596 */ 4597 zcb.zcb_haderrors |= err; 4598 4599 if (zcb.zcb_haderrors) { 4600 (void) printf("\nError counts:\n\n"); 4601 (void) printf("\t%5s %s\n", "errno", "count"); 4602 for (int e = 0; e < 256; e++) { 4603 if (zcb.zcb_errors[e] != 0) { 4604 (void) printf("\t%5d %llu\n", 4605 e, (u_longlong_t)zcb.zcb_errors[e]); 4606 } 4607 } 4608 } 4609 4610 /* 4611 * Report any leaked segments. 4612 */ 4613 leaks |= zdb_leak_fini(spa, &zcb); 4614 4615 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 4616 4617 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 4618 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 4619 4620 total_alloc = norm_alloc + 4621 metaslab_class_get_alloc(spa_log_class(spa)) + 4622 metaslab_class_get_alloc(spa_special_class(spa)) + 4623 metaslab_class_get_alloc(spa_dedup_class(spa)) + 4624 get_unflushed_alloc_space(spa); 4625 total_found = tzb->zb_asize - zcb.zcb_dedup_asize + 4626 zcb.zcb_removing_size + zcb.zcb_checkpoint_size; 4627 4628 if (total_found == total_alloc && !dump_opt['L']) { 4629 (void) printf("\n\tNo leaks (block sum matches space" 4630 " maps exactly)\n"); 4631 } else if (!dump_opt['L']) { 4632 (void) printf("block traversal size %llu != alloc %llu " 4633 "(%s %lld)\n", 4634 (u_longlong_t)total_found, 4635 (u_longlong_t)total_alloc, 4636 (dump_opt['L']) ? "unreachable" : "leaked", 4637 (longlong_t)(total_alloc - total_found)); 4638 leaks = B_TRUE; 4639 } 4640 4641 if (tzb->zb_count == 0) 4642 return (2); 4643 4644 (void) printf("\n"); 4645 (void) printf("\t%-16s %14llu\n", "bp count:", 4646 (u_longlong_t)tzb->zb_count); 4647 (void) printf("\t%-16s %14llu\n", "ganged count:", 4648 (longlong_t)tzb->zb_gangs); 4649 (void) printf("\t%-16s %14llu avg: %6llu\n", "bp logical:", 4650 (u_longlong_t)tzb->zb_lsize, 4651 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 4652 (void) printf("\t%-16s %14llu avg: %6llu compression: %6.2f\n", 4653 "bp physical:", (u_longlong_t)tzb->zb_psize, 4654 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 4655 (double)tzb->zb_lsize / tzb->zb_psize); 4656 (void) printf("\t%-16s %14llu avg: %6llu compression: %6.2f\n", 4657 "bp allocated:", (u_longlong_t)tzb->zb_asize, 4658 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 4659 (double)tzb->zb_lsize / tzb->zb_asize); 4660 (void) printf("\t%-16s %14llu ref>1: %6llu deduplication: %6.2f\n", 4661 "bp deduped:", (u_longlong_t)zcb.zcb_dedup_asize, 4662 (u_longlong_t)zcb.zcb_dedup_blocks, 4663 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 4664 (void) printf("\t%-16s %14llu used: %5.2f%%\n", "Normal class:", 4665 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 4666 4667 if (spa_special_class(spa)->mc_rotor != NULL) { 4668 uint64_t alloc = metaslab_class_get_alloc( 4669 spa_special_class(spa)); 4670 uint64_t space = metaslab_class_get_space( 4671 spa_special_class(spa)); 4672 4673 (void) printf("\t%-16s %14llu used: %5.2f%%\n", 4674 "Special class", (u_longlong_t)alloc, 4675 100.0 * alloc / space); 4676 } 4677 4678 if (spa_dedup_class(spa)->mc_rotor != NULL) { 4679 uint64_t alloc = metaslab_class_get_alloc( 4680 spa_dedup_class(spa)); 4681 uint64_t space = metaslab_class_get_space( 4682 spa_dedup_class(spa)); 4683 4684 (void) printf("\t%-16s %14llu used: %5.2f%%\n", 4685 "Dedup class", (u_longlong_t)alloc, 4686 100.0 * alloc / space); 4687 } 4688 4689 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) { 4690 if (zcb.zcb_embedded_blocks[i] == 0) 4691 continue; 4692 (void) printf("\n"); 4693 (void) printf("\tadditional, non-pointer bps of type %u: " 4694 "%10llu\n", 4695 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]); 4696 4697 if (dump_opt['b'] >= 3) { 4698 (void) printf("\t number of (compressed) bytes: " 4699 "number of bps\n"); 4700 dump_histogram(zcb.zcb_embedded_histogram[i], 4701 sizeof (zcb.zcb_embedded_histogram[i]) / 4702 sizeof (zcb.zcb_embedded_histogram[i][0]), 0); 4703 } 4704 } 4705 4706 if (tzb->zb_ditto_samevdev != 0) { 4707 (void) printf("\tDittoed blocks on same vdev: %llu\n", 4708 (longlong_t)tzb->zb_ditto_samevdev); 4709 } 4710 if (tzb->zb_ditto_same_ms != 0) { 4711 (void) printf("\tDittoed blocks in same metaslab: %llu\n", 4712 (longlong_t)tzb->zb_ditto_same_ms); 4713 } 4714 4715 for (uint64_t v = 0; v < spa->spa_root_vdev->vdev_children; v++) { 4716 vdev_t *vd = spa->spa_root_vdev->vdev_child[v]; 4717 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 4718 4719 if (vim == NULL) { 4720 continue; 4721 } 4722 4723 char mem[32]; 4724 zdb_nicenum(vdev_indirect_mapping_num_entries(vim), 4725 mem, vdev_indirect_mapping_size(vim)); 4726 4727 (void) printf("\tindirect vdev id %llu has %llu segments " 4728 "(%s in memory)\n", 4729 (longlong_t)vd->vdev_id, 4730 (longlong_t)vdev_indirect_mapping_num_entries(vim), mem); 4731 } 4732 4733 if (dump_opt['b'] >= 2) { 4734 int l, t, level; 4735 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 4736 "\t avg\t comp\t%%Total\tType\n"); 4737 4738 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 4739 char csize[32], lsize[32], psize[32], asize[32]; 4740 char avg[32], gang[32]; 4741 const char *typename; 4742 4743 /* make sure nicenum has enough space */ 4744 CTASSERT(sizeof (csize) >= NN_NUMBUF_SZ); 4745 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ); 4746 CTASSERT(sizeof (psize) >= NN_NUMBUF_SZ); 4747 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ); 4748 CTASSERT(sizeof (avg) >= NN_NUMBUF_SZ); 4749 CTASSERT(sizeof (gang) >= NN_NUMBUF_SZ); 4750 4751 if (t < DMU_OT_NUMTYPES) 4752 typename = dmu_ot[t].ot_name; 4753 else 4754 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 4755 4756 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 4757 (void) printf("%6s\t%5s\t%5s\t%5s" 4758 "\t%5s\t%5s\t%6s\t%s\n", 4759 "-", 4760 "-", 4761 "-", 4762 "-", 4763 "-", 4764 "-", 4765 "-", 4766 typename); 4767 continue; 4768 } 4769 4770 for (l = ZB_TOTAL - 1; l >= -1; l--) { 4771 level = (l == -1 ? ZB_TOTAL : l); 4772 zb = &zcb.zcb_type[level][t]; 4773 4774 if (zb->zb_asize == 0) 4775 continue; 4776 4777 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 4778 continue; 4779 4780 if (level == 0 && zb->zb_asize == 4781 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 4782 continue; 4783 4784 zdb_nicenum(zb->zb_count, csize, 4785 sizeof (csize)); 4786 zdb_nicenum(zb->zb_lsize, lsize, 4787 sizeof (lsize)); 4788 zdb_nicenum(zb->zb_psize, psize, 4789 sizeof (psize)); 4790 zdb_nicenum(zb->zb_asize, asize, 4791 sizeof (asize)); 4792 zdb_nicenum(zb->zb_asize / zb->zb_count, avg, 4793 sizeof (avg)); 4794 zdb_nicenum(zb->zb_gangs, gang, sizeof (gang)); 4795 4796 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 4797 "\t%5.2f\t%6.2f\t", 4798 csize, lsize, psize, asize, avg, 4799 (double)zb->zb_lsize / zb->zb_psize, 4800 100.0 * zb->zb_asize / tzb->zb_asize); 4801 4802 if (level == ZB_TOTAL) 4803 (void) printf("%s\n", typename); 4804 else 4805 (void) printf(" L%d %s\n", 4806 level, typename); 4807 4808 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { 4809 (void) printf("\t number of ganged " 4810 "blocks: %s\n", gang); 4811 } 4812 4813 if (dump_opt['b'] >= 4) { 4814 (void) printf("psize " 4815 "(in 512-byte sectors): " 4816 "number of blocks\n"); 4817 dump_histogram(zb->zb_psize_histogram, 4818 PSIZE_HISTO_SIZE, 0); 4819 } 4820 } 4821 } 4822 } 4823 4824 (void) printf("\n"); 4825 4826 if (leaks) 4827 return (2); 4828 4829 if (zcb.zcb_haderrors) 4830 return (3); 4831 4832 return (0); 4833 } 4834 4835 typedef struct zdb_ddt_entry { 4836 ddt_key_t zdde_key; 4837 uint64_t zdde_ref_blocks; 4838 uint64_t zdde_ref_lsize; 4839 uint64_t zdde_ref_psize; 4840 uint64_t zdde_ref_dsize; 4841 avl_node_t zdde_node; 4842 } zdb_ddt_entry_t; 4843 4844 /* ARGSUSED */ 4845 static int 4846 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 4847 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 4848 { 4849 avl_tree_t *t = arg; 4850 avl_index_t where; 4851 zdb_ddt_entry_t *zdde, zdde_search; 4852 4853 if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp)) 4854 return (0); 4855 4856 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 4857 (void) printf("traversing objset %llu, %llu objects, " 4858 "%lu blocks so far\n", 4859 (u_longlong_t)zb->zb_objset, 4860 (u_longlong_t)BP_GET_FILL(bp), 4861 avl_numnodes(t)); 4862 } 4863 4864 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 4865 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 4866 return (0); 4867 4868 ddt_key_fill(&zdde_search.zdde_key, bp); 4869 4870 zdde = avl_find(t, &zdde_search, &where); 4871 4872 if (zdde == NULL) { 4873 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 4874 zdde->zdde_key = zdde_search.zdde_key; 4875 avl_insert(t, zdde, where); 4876 } 4877 4878 zdde->zdde_ref_blocks += 1; 4879 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 4880 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 4881 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 4882 4883 return (0); 4884 } 4885 4886 static void 4887 dump_simulated_ddt(spa_t *spa) 4888 { 4889 avl_tree_t t; 4890 void *cookie = NULL; 4891 zdb_ddt_entry_t *zdde; 4892 ddt_histogram_t ddh_total; 4893 ddt_stat_t dds_total; 4894 4895 bzero(&ddh_total, sizeof (ddh_total)); 4896 bzero(&dds_total, sizeof (dds_total)); 4897 avl_create(&t, ddt_entry_compare, 4898 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 4899 4900 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 4901 4902 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | 4903 TRAVERSE_NO_DECRYPT, zdb_ddt_add_cb, &t); 4904 4905 spa_config_exit(spa, SCL_CONFIG, FTAG); 4906 4907 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 4908 ddt_stat_t dds; 4909 uint64_t refcnt = zdde->zdde_ref_blocks; 4910 ASSERT(refcnt != 0); 4911 4912 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 4913 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 4914 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 4915 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 4916 4917 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 4918 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 4919 dds.dds_ref_psize = zdde->zdde_ref_psize; 4920 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 4921 4922 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1], 4923 &dds, 0); 4924 4925 umem_free(zdde, sizeof (*zdde)); 4926 } 4927 4928 avl_destroy(&t); 4929 4930 ddt_histogram_stat(&dds_total, &ddh_total); 4931 4932 (void) printf("Simulated DDT histogram:\n"); 4933 4934 zpool_dump_ddt(&dds_total, &ddh_total); 4935 4936 dump_dedup_ratio(&dds_total); 4937 } 4938 4939 static int 4940 verify_device_removal_feature_counts(spa_t *spa) 4941 { 4942 uint64_t dr_feature_refcount = 0; 4943 uint64_t oc_feature_refcount = 0; 4944 uint64_t indirect_vdev_count = 0; 4945 uint64_t precise_vdev_count = 0; 4946 uint64_t obsolete_counts_object_count = 0; 4947 uint64_t obsolete_sm_count = 0; 4948 uint64_t obsolete_counts_count = 0; 4949 uint64_t scip_count = 0; 4950 uint64_t obsolete_bpobj_count = 0; 4951 int ret = 0; 4952 4953 spa_condensing_indirect_phys_t *scip = 4954 &spa->spa_condensing_indirect_phys; 4955 if (scip->scip_next_mapping_object != 0) { 4956 vdev_t *vd = spa->spa_root_vdev->vdev_child[scip->scip_vdev]; 4957 ASSERT(scip->scip_prev_obsolete_sm_object != 0); 4958 ASSERT3P(vd->vdev_ops, ==, &vdev_indirect_ops); 4959 4960 (void) printf("Condensing indirect vdev %llu: new mapping " 4961 "object %llu, prev obsolete sm %llu\n", 4962 (u_longlong_t)scip->scip_vdev, 4963 (u_longlong_t)scip->scip_next_mapping_object, 4964 (u_longlong_t)scip->scip_prev_obsolete_sm_object); 4965 if (scip->scip_prev_obsolete_sm_object != 0) { 4966 space_map_t *prev_obsolete_sm = NULL; 4967 VERIFY0(space_map_open(&prev_obsolete_sm, 4968 spa->spa_meta_objset, 4969 scip->scip_prev_obsolete_sm_object, 4970 0, vd->vdev_asize, 0)); 4971 dump_spacemap(spa->spa_meta_objset, prev_obsolete_sm); 4972 (void) printf("\n"); 4973 space_map_close(prev_obsolete_sm); 4974 } 4975 4976 scip_count += 2; 4977 } 4978 4979 for (uint64_t i = 0; i < spa->spa_root_vdev->vdev_children; i++) { 4980 vdev_t *vd = spa->spa_root_vdev->vdev_child[i]; 4981 vdev_indirect_config_t *vic = &vd->vdev_indirect_config; 4982 4983 if (vic->vic_mapping_object != 0) { 4984 ASSERT(vd->vdev_ops == &vdev_indirect_ops || 4985 vd->vdev_removing); 4986 indirect_vdev_count++; 4987 4988 if (vd->vdev_indirect_mapping->vim_havecounts) { 4989 obsolete_counts_count++; 4990 } 4991 } 4992 if (vdev_obsolete_counts_are_precise(vd)) { 4993 ASSERT(vic->vic_mapping_object != 0); 4994 precise_vdev_count++; 4995 } 4996 if (vdev_obsolete_sm_object(vd) != 0) { 4997 ASSERT(vic->vic_mapping_object != 0); 4998 obsolete_sm_count++; 4999 } 5000 } 5001 5002 (void) feature_get_refcount(spa, 5003 &spa_feature_table[SPA_FEATURE_DEVICE_REMOVAL], 5004 &dr_feature_refcount); 5005 (void) feature_get_refcount(spa, 5006 &spa_feature_table[SPA_FEATURE_OBSOLETE_COUNTS], 5007 &oc_feature_refcount); 5008 5009 if (dr_feature_refcount != indirect_vdev_count) { 5010 ret = 1; 5011 (void) printf("Number of indirect vdevs (%llu) " \ 5012 "does not match feature count (%llu)\n", 5013 (u_longlong_t)indirect_vdev_count, 5014 (u_longlong_t)dr_feature_refcount); 5015 } else { 5016 (void) printf("Verified device_removal feature refcount " \ 5017 "of %llu is correct\n", 5018 (u_longlong_t)dr_feature_refcount); 5019 } 5020 5021 if (zap_contains(spa_meta_objset(spa), DMU_POOL_DIRECTORY_OBJECT, 5022 DMU_POOL_OBSOLETE_BPOBJ) == 0) { 5023 obsolete_bpobj_count++; 5024 } 5025 5026 5027 obsolete_counts_object_count = precise_vdev_count; 5028 obsolete_counts_object_count += obsolete_sm_count; 5029 obsolete_counts_object_count += obsolete_counts_count; 5030 obsolete_counts_object_count += scip_count; 5031 obsolete_counts_object_count += obsolete_bpobj_count; 5032 obsolete_counts_object_count += remap_deadlist_count; 5033 5034 if (oc_feature_refcount != obsolete_counts_object_count) { 5035 ret = 1; 5036 (void) printf("Number of obsolete counts objects (%llu) " \ 5037 "does not match feature count (%llu)\n", 5038 (u_longlong_t)obsolete_counts_object_count, 5039 (u_longlong_t)oc_feature_refcount); 5040 (void) printf("pv:%llu os:%llu oc:%llu sc:%llu " 5041 "ob:%llu rd:%llu\n", 5042 (u_longlong_t)precise_vdev_count, 5043 (u_longlong_t)obsolete_sm_count, 5044 (u_longlong_t)obsolete_counts_count, 5045 (u_longlong_t)scip_count, 5046 (u_longlong_t)obsolete_bpobj_count, 5047 (u_longlong_t)remap_deadlist_count); 5048 } else { 5049 (void) printf("Verified indirect_refcount feature refcount " \ 5050 "of %llu is correct\n", 5051 (u_longlong_t)oc_feature_refcount); 5052 } 5053 return (ret); 5054 } 5055 5056 static void 5057 zdb_set_skip_mmp(char *target) 5058 { 5059 spa_t *spa; 5060 5061 /* 5062 * Disable the activity check to allow examination of 5063 * active pools. 5064 */ 5065 mutex_enter(&spa_namespace_lock); 5066 if ((spa = spa_lookup(target)) != NULL) { 5067 spa->spa_import_flags |= ZFS_IMPORT_SKIP_MMP; 5068 } 5069 mutex_exit(&spa_namespace_lock); 5070 } 5071 5072 #define BOGUS_SUFFIX "_CHECKPOINTED_UNIVERSE" 5073 /* 5074 * Import the checkpointed state of the pool specified by the target 5075 * parameter as readonly. The function also accepts a pool config 5076 * as an optional parameter, else it attempts to infer the config by 5077 * the name of the target pool. 5078 * 5079 * Note that the checkpointed state's pool name will be the name of 5080 * the original pool with the above suffix appened to it. In addition, 5081 * if the target is not a pool name (e.g. a path to a dataset) then 5082 * the new_path parameter is populated with the updated path to 5083 * reflect the fact that we are looking into the checkpointed state. 5084 * 5085 * The function returns a newly-allocated copy of the name of the 5086 * pool containing the checkpointed state. When this copy is no 5087 * longer needed it should be freed with free(3C). Same thing 5088 * applies to the new_path parameter if allocated. 5089 */ 5090 static char * 5091 import_checkpointed_state(char *target, nvlist_t *cfg, char **new_path) 5092 { 5093 int error = 0; 5094 char *poolname, *bogus_name; 5095 5096 /* If the target is not a pool, the extract the pool name */ 5097 char *path_start = strchr(target, '/'); 5098 if (path_start != NULL) { 5099 size_t poolname_len = path_start - target; 5100 poolname = strndup(target, poolname_len); 5101 } else { 5102 poolname = target; 5103 } 5104 5105 if (cfg == NULL) { 5106 zdb_set_skip_mmp(poolname); 5107 error = spa_get_stats(poolname, &cfg, NULL, 0); 5108 if (error != 0) { 5109 fatal("Tried to read config of pool \"%s\" but " 5110 "spa_get_stats() failed with error %d\n", 5111 poolname, error); 5112 } 5113 } 5114 5115 (void) asprintf(&bogus_name, "%s%s", poolname, BOGUS_SUFFIX); 5116 fnvlist_add_string(cfg, ZPOOL_CONFIG_POOL_NAME, bogus_name); 5117 5118 error = spa_import(bogus_name, cfg, NULL, 5119 ZFS_IMPORT_MISSING_LOG | ZFS_IMPORT_CHECKPOINT | 5120 ZFS_IMPORT_SKIP_MMP); 5121 if (error != 0) { 5122 fatal("Tried to import pool \"%s\" but spa_import() failed " 5123 "with error %d\n", bogus_name, error); 5124 } 5125 5126 if (new_path != NULL && path_start != NULL) 5127 (void) asprintf(new_path, "%s%s", bogus_name, path_start); 5128 5129 if (target != poolname) 5130 free(poolname); 5131 5132 return (bogus_name); 5133 } 5134 5135 typedef struct verify_checkpoint_sm_entry_cb_arg { 5136 vdev_t *vcsec_vd; 5137 5138 /* the following fields are only used for printing progress */ 5139 uint64_t vcsec_entryid; 5140 uint64_t vcsec_num_entries; 5141 } verify_checkpoint_sm_entry_cb_arg_t; 5142 5143 #define ENTRIES_PER_PROGRESS_UPDATE 10000 5144 5145 static int 5146 verify_checkpoint_sm_entry_cb(space_map_entry_t *sme, void *arg) 5147 { 5148 verify_checkpoint_sm_entry_cb_arg_t *vcsec = arg; 5149 vdev_t *vd = vcsec->vcsec_vd; 5150 metaslab_t *ms = vd->vdev_ms[sme->sme_offset >> vd->vdev_ms_shift]; 5151 uint64_t end = sme->sme_offset + sme->sme_run; 5152 5153 ASSERT(sme->sme_type == SM_FREE); 5154 5155 if ((vcsec->vcsec_entryid % ENTRIES_PER_PROGRESS_UPDATE) == 0) { 5156 (void) fprintf(stderr, 5157 "\rverifying vdev %llu, space map entry %llu of %llu ...", 5158 (longlong_t)vd->vdev_id, 5159 (longlong_t)vcsec->vcsec_entryid, 5160 (longlong_t)vcsec->vcsec_num_entries); 5161 } 5162 vcsec->vcsec_entryid++; 5163 5164 /* 5165 * See comment in checkpoint_sm_exclude_entry_cb() 5166 */ 5167 VERIFY3U(sme->sme_offset, >=, ms->ms_start); 5168 VERIFY3U(end, <=, ms->ms_start + ms->ms_size); 5169 5170 /* 5171 * The entries in the vdev_checkpoint_sm should be marked as 5172 * allocated in the checkpointed state of the pool, therefore 5173 * their respective ms_allocateable trees should not contain them. 5174 */ 5175 mutex_enter(&ms->ms_lock); 5176 range_tree_verify_not_present(ms->ms_allocatable, 5177 sme->sme_offset, sme->sme_run); 5178 mutex_exit(&ms->ms_lock); 5179 5180 return (0); 5181 } 5182 5183 /* 5184 * Verify that all segments in the vdev_checkpoint_sm are allocated 5185 * according to the checkpoint's ms_sm (i.e. are not in the checkpoint's 5186 * ms_allocatable). 5187 * 5188 * Do so by comparing the checkpoint space maps (vdev_checkpoint_sm) of 5189 * each vdev in the current state of the pool to the metaslab space maps 5190 * (ms_sm) of the checkpointed state of the pool. 5191 * 5192 * Note that the function changes the state of the ms_allocatable 5193 * trees of the current spa_t. The entries of these ms_allocatable 5194 * trees are cleared out and then repopulated from with the free 5195 * entries of their respective ms_sm space maps. 5196 */ 5197 static void 5198 verify_checkpoint_vdev_spacemaps(spa_t *checkpoint, spa_t *current) 5199 { 5200 vdev_t *ckpoint_rvd = checkpoint->spa_root_vdev; 5201 vdev_t *current_rvd = current->spa_root_vdev; 5202 5203 load_concrete_ms_allocatable_trees(checkpoint, SM_FREE); 5204 5205 for (uint64_t c = 0; c < ckpoint_rvd->vdev_children; c++) { 5206 vdev_t *ckpoint_vd = ckpoint_rvd->vdev_child[c]; 5207 vdev_t *current_vd = current_rvd->vdev_child[c]; 5208 5209 space_map_t *checkpoint_sm = NULL; 5210 uint64_t checkpoint_sm_obj; 5211 5212 if (ckpoint_vd->vdev_ops == &vdev_indirect_ops) { 5213 /* 5214 * Since we don't allow device removal in a pool 5215 * that has a checkpoint, we expect that all removed 5216 * vdevs were removed from the pool before the 5217 * checkpoint. 5218 */ 5219 ASSERT3P(current_vd->vdev_ops, ==, &vdev_indirect_ops); 5220 continue; 5221 } 5222 5223 /* 5224 * If the checkpoint space map doesn't exist, then nothing 5225 * here is checkpointed so there's nothing to verify. 5226 */ 5227 if (current_vd->vdev_top_zap == 0 || 5228 zap_contains(spa_meta_objset(current), 5229 current_vd->vdev_top_zap, 5230 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0) 5231 continue; 5232 5233 VERIFY0(zap_lookup(spa_meta_objset(current), 5234 current_vd->vdev_top_zap, VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, 5235 sizeof (uint64_t), 1, &checkpoint_sm_obj)); 5236 5237 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(current), 5238 checkpoint_sm_obj, 0, current_vd->vdev_asize, 5239 current_vd->vdev_ashift)); 5240 5241 verify_checkpoint_sm_entry_cb_arg_t vcsec; 5242 vcsec.vcsec_vd = ckpoint_vd; 5243 vcsec.vcsec_entryid = 0; 5244 vcsec.vcsec_num_entries = 5245 space_map_length(checkpoint_sm) / sizeof (uint64_t); 5246 VERIFY0(space_map_iterate(checkpoint_sm, 5247 space_map_length(checkpoint_sm), 5248 verify_checkpoint_sm_entry_cb, &vcsec)); 5249 dump_spacemap(current->spa_meta_objset, checkpoint_sm); 5250 space_map_close(checkpoint_sm); 5251 } 5252 5253 /* 5254 * If we've added vdevs since we took the checkpoint, ensure 5255 * that their checkpoint space maps are empty. 5256 */ 5257 if (ckpoint_rvd->vdev_children < current_rvd->vdev_children) { 5258 for (uint64_t c = ckpoint_rvd->vdev_children; 5259 c < current_rvd->vdev_children; c++) { 5260 vdev_t *current_vd = current_rvd->vdev_child[c]; 5261 VERIFY3P(current_vd->vdev_checkpoint_sm, ==, NULL); 5262 } 5263 } 5264 5265 /* for cleaner progress output */ 5266 (void) fprintf(stderr, "\n"); 5267 } 5268 5269 /* 5270 * Verifies that all space that's allocated in the checkpoint is 5271 * still allocated in the current version, by checking that everything 5272 * in checkpoint's ms_allocatable (which is actually allocated, not 5273 * allocatable/free) is not present in current's ms_allocatable. 5274 * 5275 * Note that the function changes the state of the ms_allocatable 5276 * trees of both spas when called. The entries of all ms_allocatable 5277 * trees are cleared out and then repopulated from their respective 5278 * ms_sm space maps. In the checkpointed state we load the allocated 5279 * entries, and in the current state we load the free entries. 5280 */ 5281 static void 5282 verify_checkpoint_ms_spacemaps(spa_t *checkpoint, spa_t *current) 5283 { 5284 vdev_t *ckpoint_rvd = checkpoint->spa_root_vdev; 5285 vdev_t *current_rvd = current->spa_root_vdev; 5286 5287 load_concrete_ms_allocatable_trees(checkpoint, SM_ALLOC); 5288 load_concrete_ms_allocatable_trees(current, SM_FREE); 5289 5290 for (uint64_t i = 0; i < ckpoint_rvd->vdev_children; i++) { 5291 vdev_t *ckpoint_vd = ckpoint_rvd->vdev_child[i]; 5292 vdev_t *current_vd = current_rvd->vdev_child[i]; 5293 5294 if (ckpoint_vd->vdev_ops == &vdev_indirect_ops) { 5295 /* 5296 * See comment in verify_checkpoint_vdev_spacemaps() 5297 */ 5298 ASSERT3P(current_vd->vdev_ops, ==, &vdev_indirect_ops); 5299 continue; 5300 } 5301 5302 for (uint64_t m = 0; m < ckpoint_vd->vdev_ms_count; m++) { 5303 metaslab_t *ckpoint_msp = ckpoint_vd->vdev_ms[m]; 5304 metaslab_t *current_msp = current_vd->vdev_ms[m]; 5305 5306 (void) fprintf(stderr, 5307 "\rverifying vdev %llu of %llu, " 5308 "metaslab %llu of %llu ...", 5309 (longlong_t)current_vd->vdev_id, 5310 (longlong_t)current_rvd->vdev_children, 5311 (longlong_t)current_vd->vdev_ms[m]->ms_id, 5312 (longlong_t)current_vd->vdev_ms_count); 5313 5314 /* 5315 * We walk through the ms_allocatable trees that 5316 * are loaded with the allocated blocks from the 5317 * ms_sm spacemaps of the checkpoint. For each 5318 * one of these ranges we ensure that none of them 5319 * exists in the ms_allocatable trees of the 5320 * current state which are loaded with the ranges 5321 * that are currently free. 5322 * 5323 * This way we ensure that none of the blocks that 5324 * are part of the checkpoint were freed by mistake. 5325 */ 5326 range_tree_walk(ckpoint_msp->ms_allocatable, 5327 (range_tree_func_t *)range_tree_verify_not_present, 5328 current_msp->ms_allocatable); 5329 } 5330 } 5331 5332 /* for cleaner progress output */ 5333 (void) fprintf(stderr, "\n"); 5334 } 5335 5336 static void 5337 verify_checkpoint_blocks(spa_t *spa) 5338 { 5339 ASSERT(!dump_opt['L']); 5340 5341 spa_t *checkpoint_spa; 5342 char *checkpoint_pool; 5343 nvlist_t *config = NULL; 5344 int error = 0; 5345 5346 /* 5347 * We import the checkpointed state of the pool (under a different 5348 * name) so we can do verification on it against the current state 5349 * of the pool. 5350 */ 5351 checkpoint_pool = import_checkpointed_state(spa->spa_name, config, 5352 NULL); 5353 ASSERT(strcmp(spa->spa_name, checkpoint_pool) != 0); 5354 5355 error = spa_open(checkpoint_pool, &checkpoint_spa, FTAG); 5356 if (error != 0) { 5357 fatal("Tried to open pool \"%s\" but spa_open() failed with " 5358 "error %d\n", checkpoint_pool, error); 5359 } 5360 5361 /* 5362 * Ensure that ranges in the checkpoint space maps of each vdev 5363 * are allocated according to the checkpointed state's metaslab 5364 * space maps. 5365 */ 5366 verify_checkpoint_vdev_spacemaps(checkpoint_spa, spa); 5367 5368 /* 5369 * Ensure that allocated ranges in the checkpoint's metaslab 5370 * space maps remain allocated in the metaslab space maps of 5371 * the current state. 5372 */ 5373 verify_checkpoint_ms_spacemaps(checkpoint_spa, spa); 5374 5375 /* 5376 * Once we are done, we get rid of the checkpointed state. 5377 */ 5378 spa_close(checkpoint_spa, FTAG); 5379 free(checkpoint_pool); 5380 } 5381 5382 static void 5383 dump_leftover_checkpoint_blocks(spa_t *spa) 5384 { 5385 vdev_t *rvd = spa->spa_root_vdev; 5386 5387 for (uint64_t i = 0; i < rvd->vdev_children; i++) { 5388 vdev_t *vd = rvd->vdev_child[i]; 5389 5390 space_map_t *checkpoint_sm = NULL; 5391 uint64_t checkpoint_sm_obj; 5392 5393 if (vd->vdev_top_zap == 0) 5394 continue; 5395 5396 if (zap_contains(spa_meta_objset(spa), vd->vdev_top_zap, 5397 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0) 5398 continue; 5399 5400 VERIFY0(zap_lookup(spa_meta_objset(spa), vd->vdev_top_zap, 5401 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, 5402 sizeof (uint64_t), 1, &checkpoint_sm_obj)); 5403 5404 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(spa), 5405 checkpoint_sm_obj, 0, vd->vdev_asize, vd->vdev_ashift)); 5406 dump_spacemap(spa->spa_meta_objset, checkpoint_sm); 5407 space_map_close(checkpoint_sm); 5408 } 5409 } 5410 5411 static int 5412 verify_checkpoint(spa_t *spa) 5413 { 5414 uberblock_t checkpoint; 5415 int error; 5416 5417 if (!spa_feature_is_active(spa, SPA_FEATURE_POOL_CHECKPOINT)) 5418 return (0); 5419 5420 error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, 5421 DMU_POOL_ZPOOL_CHECKPOINT, sizeof (uint64_t), 5422 sizeof (uberblock_t) / sizeof (uint64_t), &checkpoint); 5423 5424 if (error == ENOENT && !dump_opt['L']) { 5425 /* 5426 * If the feature is active but the uberblock is missing 5427 * then we must be in the middle of discarding the 5428 * checkpoint. 5429 */ 5430 (void) printf("\nPartially discarded checkpoint " 5431 "state found:\n"); 5432 dump_leftover_checkpoint_blocks(spa); 5433 return (0); 5434 } else if (error != 0) { 5435 (void) printf("lookup error %d when looking for " 5436 "checkpointed uberblock in MOS\n", error); 5437 return (error); 5438 } 5439 dump_uberblock(&checkpoint, "\nCheckpointed uberblock found:\n", "\n"); 5440 5441 if (checkpoint.ub_checkpoint_txg == 0) { 5442 (void) printf("\nub_checkpoint_txg not set in checkpointed " 5443 "uberblock\n"); 5444 error = 3; 5445 } 5446 5447 if (error == 0 && !dump_opt['L']) 5448 verify_checkpoint_blocks(spa); 5449 5450 return (error); 5451 } 5452 5453 /* ARGSUSED */ 5454 static void 5455 mos_leaks_cb(void *arg, uint64_t start, uint64_t size) 5456 { 5457 for (uint64_t i = start; i < size; i++) { 5458 (void) printf("MOS object %llu referenced but not allocated\n", 5459 (u_longlong_t)i); 5460 } 5461 } 5462 5463 static range_tree_t *mos_refd_objs; 5464 5465 static void 5466 mos_obj_refd(uint64_t obj) 5467 { 5468 if (obj != 0 && mos_refd_objs != NULL) 5469 range_tree_add(mos_refd_objs, obj, 1); 5470 } 5471 5472 static void 5473 mos_leak_vdev_top_zap(vdev_t *vd) 5474 { 5475 uint64_t ms_flush_data_obj; 5476 5477 int error = zap_lookup(spa_meta_objset(vd->vdev_spa), 5478 vd->vdev_top_zap, VDEV_TOP_ZAP_MS_UNFLUSHED_PHYS_TXGS, 5479 sizeof (ms_flush_data_obj), 1, &ms_flush_data_obj); 5480 if (error == ENOENT) 5481 return; 5482 ASSERT0(error); 5483 5484 mos_obj_refd(ms_flush_data_obj); 5485 } 5486 5487 static void 5488 mos_leak_vdev(vdev_t *vd) 5489 { 5490 mos_obj_refd(vd->vdev_dtl_object); 5491 mos_obj_refd(vd->vdev_ms_array); 5492 mos_obj_refd(vd->vdev_indirect_config.vic_births_object); 5493 mos_obj_refd(vd->vdev_indirect_config.vic_mapping_object); 5494 mos_obj_refd(vd->vdev_leaf_zap); 5495 if (vd->vdev_checkpoint_sm != NULL) 5496 mos_obj_refd(vd->vdev_checkpoint_sm->sm_object); 5497 if (vd->vdev_indirect_mapping != NULL) { 5498 mos_obj_refd(vd->vdev_indirect_mapping-> 5499 vim_phys->vimp_counts_object); 5500 } 5501 if (vd->vdev_obsolete_sm != NULL) 5502 mos_obj_refd(vd->vdev_obsolete_sm->sm_object); 5503 5504 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 5505 metaslab_t *ms = vd->vdev_ms[m]; 5506 mos_obj_refd(space_map_object(ms->ms_sm)); 5507 } 5508 5509 if (vd->vdev_top_zap != 0) { 5510 mos_obj_refd(vd->vdev_top_zap); 5511 mos_leak_vdev_top_zap(vd); 5512 } 5513 5514 for (uint64_t c = 0; c < vd->vdev_children; c++) { 5515 mos_leak_vdev(vd->vdev_child[c]); 5516 } 5517 } 5518 5519 static void 5520 mos_leak_log_spacemaps(spa_t *spa) 5521 { 5522 uint64_t spacemap_zap; 5523 5524 int error = zap_lookup(spa_meta_objset(spa), 5525 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_LOG_SPACEMAP_ZAP, 5526 sizeof (spacemap_zap), 1, &spacemap_zap); 5527 if (error == ENOENT) 5528 return; 5529 ASSERT0(error); 5530 5531 mos_obj_refd(spacemap_zap); 5532 for (spa_log_sm_t *sls = avl_first(&spa->spa_sm_logs_by_txg); 5533 sls; sls = AVL_NEXT(&spa->spa_sm_logs_by_txg, sls)) 5534 mos_obj_refd(sls->sls_sm_obj); 5535 } 5536 5537 static int 5538 dump_mos_leaks(spa_t *spa) 5539 { 5540 int rv = 0; 5541 objset_t *mos = spa->spa_meta_objset; 5542 dsl_pool_t *dp = spa->spa_dsl_pool; 5543 5544 /* Visit and mark all referenced objects in the MOS */ 5545 5546 mos_obj_refd(DMU_POOL_DIRECTORY_OBJECT); 5547 mos_obj_refd(spa->spa_pool_props_object); 5548 mos_obj_refd(spa->spa_config_object); 5549 mos_obj_refd(spa->spa_ddt_stat_object); 5550 mos_obj_refd(spa->spa_feat_desc_obj); 5551 mos_obj_refd(spa->spa_feat_enabled_txg_obj); 5552 mos_obj_refd(spa->spa_feat_for_read_obj); 5553 mos_obj_refd(spa->spa_feat_for_write_obj); 5554 mos_obj_refd(spa->spa_history); 5555 mos_obj_refd(spa->spa_errlog_last); 5556 mos_obj_refd(spa->spa_errlog_scrub); 5557 mos_obj_refd(spa->spa_all_vdev_zaps); 5558 mos_obj_refd(spa->spa_dsl_pool->dp_bptree_obj); 5559 mos_obj_refd(spa->spa_dsl_pool->dp_tmp_userrefs_obj); 5560 mos_obj_refd(spa->spa_dsl_pool->dp_scan->scn_phys.scn_queue_obj); 5561 bpobj_count_refd(&spa->spa_deferred_bpobj); 5562 mos_obj_refd(dp->dp_empty_bpobj); 5563 bpobj_count_refd(&dp->dp_obsolete_bpobj); 5564 bpobj_count_refd(&dp->dp_free_bpobj); 5565 mos_obj_refd(spa->spa_l2cache.sav_object); 5566 mos_obj_refd(spa->spa_spares.sav_object); 5567 5568 if (spa->spa_syncing_log_sm != NULL) 5569 mos_obj_refd(spa->spa_syncing_log_sm->sm_object); 5570 mos_leak_log_spacemaps(spa); 5571 5572 mos_obj_refd(spa->spa_condensing_indirect_phys. 5573 scip_next_mapping_object); 5574 mos_obj_refd(spa->spa_condensing_indirect_phys. 5575 scip_prev_obsolete_sm_object); 5576 if (spa->spa_condensing_indirect_phys.scip_next_mapping_object != 0) { 5577 vdev_indirect_mapping_t *vim = 5578 vdev_indirect_mapping_open(mos, 5579 spa->spa_condensing_indirect_phys.scip_next_mapping_object); 5580 mos_obj_refd(vim->vim_phys->vimp_counts_object); 5581 vdev_indirect_mapping_close(vim); 5582 } 5583 5584 if (dp->dp_origin_snap != NULL) { 5585 dsl_dataset_t *ds; 5586 5587 dsl_pool_config_enter(dp, FTAG); 5588 VERIFY0(dsl_dataset_hold_obj(dp, 5589 dsl_dataset_phys(dp->dp_origin_snap)->ds_next_snap_obj, 5590 FTAG, &ds)); 5591 count_ds_mos_objects(ds); 5592 dump_deadlist(&ds->ds_deadlist); 5593 dsl_dataset_rele(ds, FTAG); 5594 dsl_pool_config_exit(dp, FTAG); 5595 5596 count_ds_mos_objects(dp->dp_origin_snap); 5597 dump_deadlist(&dp->dp_origin_snap->ds_deadlist); 5598 } 5599 count_dir_mos_objects(dp->dp_mos_dir); 5600 if (dp->dp_free_dir != NULL) 5601 count_dir_mos_objects(dp->dp_free_dir); 5602 if (dp->dp_leak_dir != NULL) 5603 count_dir_mos_objects(dp->dp_leak_dir); 5604 5605 mos_leak_vdev(spa->spa_root_vdev); 5606 5607 for (uint64_t class = 0; class < DDT_CLASSES; class++) { 5608 for (uint64_t type = 0; type < DDT_TYPES; type++) { 5609 for (uint64_t cksum = 0; 5610 cksum < ZIO_CHECKSUM_FUNCTIONS; cksum++) { 5611 ddt_t *ddt = spa->spa_ddt[cksum]; 5612 mos_obj_refd(ddt->ddt_object[type][class]); 5613 } 5614 } 5615 } 5616 5617 /* 5618 * Visit all allocated objects and make sure they are referenced. 5619 */ 5620 uint64_t object = 0; 5621 while (dmu_object_next(mos, &object, B_FALSE, 0) == 0) { 5622 if (range_tree_contains(mos_refd_objs, object, 1)) { 5623 range_tree_remove(mos_refd_objs, object, 1); 5624 } else { 5625 dmu_object_info_t doi; 5626 const char *name; 5627 dmu_object_info(mos, object, &doi); 5628 if (doi.doi_type & DMU_OT_NEWTYPE) { 5629 dmu_object_byteswap_t bswap = 5630 DMU_OT_BYTESWAP(doi.doi_type); 5631 name = dmu_ot_byteswap[bswap].ob_name; 5632 } else { 5633 name = dmu_ot[doi.doi_type].ot_name; 5634 } 5635 5636 (void) printf("MOS object %llu (%s) leaked\n", 5637 (u_longlong_t)object, name); 5638 rv = 2; 5639 } 5640 } 5641 (void) range_tree_walk(mos_refd_objs, mos_leaks_cb, NULL); 5642 if (!range_tree_is_empty(mos_refd_objs)) 5643 rv = 2; 5644 range_tree_vacate(mos_refd_objs, NULL, NULL); 5645 range_tree_destroy(mos_refd_objs); 5646 return (rv); 5647 } 5648 5649 typedef struct log_sm_obsolete_stats_arg { 5650 uint64_t lsos_current_txg; 5651 5652 uint64_t lsos_total_entries; 5653 uint64_t lsos_valid_entries; 5654 5655 uint64_t lsos_sm_entries; 5656 uint64_t lsos_valid_sm_entries; 5657 } log_sm_obsolete_stats_arg_t; 5658 5659 static int 5660 log_spacemap_obsolete_stats_cb(spa_t *spa, space_map_entry_t *sme, 5661 uint64_t txg, void *arg) 5662 { 5663 log_sm_obsolete_stats_arg_t *lsos = arg; 5664 uint64_t offset = sme->sme_offset; 5665 uint64_t vdev_id = sme->sme_vdev; 5666 5667 if (lsos->lsos_current_txg == 0) { 5668 /* this is the first log */ 5669 lsos->lsos_current_txg = txg; 5670 } else if (lsos->lsos_current_txg < txg) { 5671 /* we just changed log - print stats and reset */ 5672 (void) printf("%-8llu valid entries out of %-8llu - txg %llu\n", 5673 (u_longlong_t)lsos->lsos_valid_sm_entries, 5674 (u_longlong_t)lsos->lsos_sm_entries, 5675 (u_longlong_t)lsos->lsos_current_txg); 5676 lsos->lsos_valid_sm_entries = 0; 5677 lsos->lsos_sm_entries = 0; 5678 lsos->lsos_current_txg = txg; 5679 } 5680 ASSERT3U(lsos->lsos_current_txg, ==, txg); 5681 5682 lsos->lsos_sm_entries++; 5683 lsos->lsos_total_entries++; 5684 5685 vdev_t *vd = vdev_lookup_top(spa, vdev_id); 5686 if (!vdev_is_concrete(vd)) 5687 return (0); 5688 5689 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 5690 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE); 5691 5692 if (txg < metaslab_unflushed_txg(ms)) 5693 return (0); 5694 lsos->lsos_valid_sm_entries++; 5695 lsos->lsos_valid_entries++; 5696 return (0); 5697 } 5698 5699 static void 5700 dump_log_spacemap_obsolete_stats(spa_t *spa) 5701 { 5702 if (!spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP)) 5703 return; 5704 5705 log_sm_obsolete_stats_arg_t lsos; 5706 bzero(&lsos, sizeof (lsos)); 5707 5708 (void) printf("Log Space Map Obsolete Entry Statistics:\n"); 5709 5710 iterate_through_spacemap_logs(spa, 5711 log_spacemap_obsolete_stats_cb, &lsos); 5712 5713 /* print stats for latest log */ 5714 (void) printf("%-8llu valid entries out of %-8llu - txg %llu\n", 5715 (u_longlong_t)lsos.lsos_valid_sm_entries, 5716 (u_longlong_t)lsos.lsos_sm_entries, 5717 (u_longlong_t)lsos.lsos_current_txg); 5718 5719 (void) printf("%-8llu valid entries out of %-8llu - total\n\n", 5720 (u_longlong_t)lsos.lsos_valid_entries, 5721 (u_longlong_t)lsos.lsos_total_entries); 5722 } 5723 5724 static void 5725 dump_zpool(spa_t *spa) 5726 { 5727 dsl_pool_t *dp = spa_get_dsl(spa); 5728 int rc = 0; 5729 5730 if (dump_opt['S']) { 5731 dump_simulated_ddt(spa); 5732 return; 5733 } 5734 5735 if (!dump_opt['e'] && dump_opt['C'] > 1) { 5736 (void) printf("\nCached configuration:\n"); 5737 dump_nvlist(spa->spa_config, 8); 5738 } 5739 5740 if (dump_opt['C']) 5741 dump_config(spa); 5742 5743 if (dump_opt['u']) 5744 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 5745 5746 if (dump_opt['D']) 5747 dump_all_ddts(spa); 5748 5749 if (dump_opt['d'] > 2 || dump_opt['m']) 5750 dump_metaslabs(spa); 5751 if (dump_opt['M']) 5752 dump_metaslab_groups(spa); 5753 if (dump_opt['d'] > 2 || dump_opt['m']) { 5754 dump_log_spacemaps(spa); 5755 dump_log_spacemap_obsolete_stats(spa); 5756 } 5757 5758 if (dump_opt['d'] || dump_opt['i']) { 5759 mos_refd_objs = range_tree_create(NULL, RANGE_SEG64, NULL, 0, 5760 0); 5761 dump_dir(dp->dp_meta_objset); 5762 5763 if (dump_opt['d'] >= 3) { 5764 dsl_pool_t *dp = spa->spa_dsl_pool; 5765 dump_full_bpobj(&spa->spa_deferred_bpobj, 5766 "Deferred frees", 0); 5767 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 5768 dump_full_bpobj(&dp->dp_free_bpobj, 5769 "Pool snapshot frees", 0); 5770 } 5771 if (bpobj_is_open(&dp->dp_obsolete_bpobj)) { 5772 ASSERT(spa_feature_is_enabled(spa, 5773 SPA_FEATURE_DEVICE_REMOVAL)); 5774 dump_full_bpobj(&dp->dp_obsolete_bpobj, 5775 "Pool obsolete blocks", 0); 5776 } 5777 5778 if (spa_feature_is_active(spa, 5779 SPA_FEATURE_ASYNC_DESTROY)) { 5780 dump_bptree(spa->spa_meta_objset, 5781 dp->dp_bptree_obj, 5782 "Pool dataset frees"); 5783 } 5784 dump_dtl(spa->spa_root_vdev, 0); 5785 } 5786 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 5787 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 5788 5789 if (rc == 0 && !dump_opt['L']) 5790 rc = dump_mos_leaks(spa); 5791 5792 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) { 5793 uint64_t refcount; 5794 5795 if (!(spa_feature_table[f].fi_flags & 5796 ZFEATURE_FLAG_PER_DATASET) || 5797 !spa_feature_is_enabled(spa, f)) { 5798 ASSERT0(dataset_feature_count[f]); 5799 continue; 5800 } 5801 (void) feature_get_refcount(spa, 5802 &spa_feature_table[f], &refcount); 5803 if (dataset_feature_count[f] != refcount) { 5804 (void) printf("%s feature refcount mismatch: " 5805 "%lld datasets != %lld refcount\n", 5806 spa_feature_table[f].fi_uname, 5807 (longlong_t)dataset_feature_count[f], 5808 (longlong_t)refcount); 5809 rc = 2; 5810 } else { 5811 (void) printf("Verified %s feature refcount " 5812 "of %llu is correct\n", 5813 spa_feature_table[f].fi_uname, 5814 (longlong_t)refcount); 5815 } 5816 } 5817 5818 if (rc == 0) 5819 rc = verify_device_removal_feature_counts(spa); 5820 } 5821 5822 if (rc == 0 && (dump_opt['b'] || dump_opt['c'])) 5823 rc = dump_block_stats(spa); 5824 5825 if (rc == 0) 5826 rc = verify_spacemap_refcounts(spa); 5827 5828 if (dump_opt['s']) 5829 show_pool_stats(spa); 5830 5831 if (dump_opt['h']) 5832 dump_history(spa); 5833 5834 if (rc == 0) 5835 rc = verify_checkpoint(spa); 5836 5837 if (rc != 0) { 5838 dump_debug_buffer(); 5839 exit(rc); 5840 } 5841 } 5842 5843 #define ZDB_FLAG_CHECKSUM 0x0001 5844 #define ZDB_FLAG_DECOMPRESS 0x0002 5845 #define ZDB_FLAG_BSWAP 0x0004 5846 #define ZDB_FLAG_GBH 0x0008 5847 #define ZDB_FLAG_INDIRECT 0x0010 5848 #define ZDB_FLAG_PHYS 0x0020 5849 #define ZDB_FLAG_RAW 0x0040 5850 #define ZDB_FLAG_PRINT_BLKPTR 0x0080 5851 5852 static int flagbits[256]; 5853 5854 static void 5855 zdb_print_blkptr(blkptr_t *bp, int flags) 5856 { 5857 char blkbuf[BP_SPRINTF_LEN]; 5858 5859 if (flags & ZDB_FLAG_BSWAP) 5860 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 5861 5862 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 5863 (void) printf("%s\n", blkbuf); 5864 } 5865 5866 static void 5867 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 5868 { 5869 int i; 5870 5871 for (i = 0; i < nbps; i++) 5872 zdb_print_blkptr(&bp[i], flags); 5873 } 5874 5875 static void 5876 zdb_dump_gbh(void *buf, int flags) 5877 { 5878 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 5879 } 5880 5881 static void 5882 zdb_dump_block_raw(void *buf, uint64_t size, int flags) 5883 { 5884 if (flags & ZDB_FLAG_BSWAP) 5885 byteswap_uint64_array(buf, size); 5886 (void) write(1, buf, size); 5887 } 5888 5889 static void 5890 zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 5891 { 5892 uint64_t *d = (uint64_t *)buf; 5893 unsigned nwords = size / sizeof (uint64_t); 5894 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 5895 unsigned i, j; 5896 const char *hdr; 5897 char *c; 5898 5899 5900 if (do_bswap) 5901 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 5902 else 5903 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 5904 5905 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 5906 5907 for (i = 0; i < nwords; i += 2) { 5908 (void) printf("%06llx: %016llx %016llx ", 5909 (u_longlong_t)(i * sizeof (uint64_t)), 5910 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 5911 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 5912 5913 c = (char *)&d[i]; 5914 for (j = 0; j < 2 * sizeof (uint64_t); j++) 5915 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 5916 (void) printf("\n"); 5917 } 5918 } 5919 5920 /* 5921 * There are two acceptable formats: 5922 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 5923 * child[.child]* - For example: 0.1.1 5924 * 5925 * The second form can be used to specify arbitrary vdevs anywhere 5926 * in the heirarchy. For example, in a pool with a mirror of 5927 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 5928 */ 5929 static vdev_t * 5930 zdb_vdev_lookup(vdev_t *vdev, const char *path) 5931 { 5932 char *s, *p, *q; 5933 unsigned i; 5934 5935 if (vdev == NULL) 5936 return (NULL); 5937 5938 /* First, assume the x.x.x.x format */ 5939 i = strtoul(path, &s, 10); 5940 if (s == path || (s && *s != '.' && *s != '\0')) 5941 goto name; 5942 if (i >= vdev->vdev_children) 5943 return (NULL); 5944 5945 vdev = vdev->vdev_child[i]; 5946 if (*s == '\0') 5947 return (vdev); 5948 return (zdb_vdev_lookup(vdev, s+1)); 5949 5950 name: 5951 for (i = 0; i < vdev->vdev_children; i++) { 5952 vdev_t *vc = vdev->vdev_child[i]; 5953 5954 if (vc->vdev_path == NULL) { 5955 vc = zdb_vdev_lookup(vc, path); 5956 if (vc == NULL) 5957 continue; 5958 else 5959 return (vc); 5960 } 5961 5962 p = strrchr(vc->vdev_path, '/'); 5963 p = p ? p + 1 : vc->vdev_path; 5964 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 5965 5966 if (strcmp(vc->vdev_path, path) == 0) 5967 return (vc); 5968 if (strcmp(p, path) == 0) 5969 return (vc); 5970 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 5971 return (vc); 5972 } 5973 5974 return (NULL); 5975 } 5976 5977 /* ARGSUSED */ 5978 static int 5979 random_get_pseudo_bytes_cb(void *buf, size_t len, void *unused) 5980 { 5981 return (random_get_pseudo_bytes(buf, len)); 5982 } 5983 5984 /* 5985 * Read a block from a pool and print it out. The syntax of the 5986 * block descriptor is: 5987 * 5988 * pool:vdev_specifier:offset:size[:flags] 5989 * 5990 * pool - The name of the pool you wish to read from 5991 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 5992 * offset - offset, in hex, in bytes 5993 * size - Amount of data to read, in hex, in bytes 5994 * flags - A string of characters specifying options 5995 * b: Decode a blkptr at given offset within block 5996 * *c: Calculate and display checksums 5997 * d: Decompress data before dumping 5998 * e: Byteswap data before dumping 5999 * g: Display data as a gang block header 6000 * i: Display as an indirect block 6001 * p: Do I/O to physical offset 6002 * r: Dump raw data to stdout 6003 * 6004 * * = not yet implemented 6005 */ 6006 static void 6007 zdb_read_block(char *thing, spa_t *spa) 6008 { 6009 blkptr_t blk, *bp = &blk; 6010 dva_t *dva = bp->blk_dva; 6011 int flags = 0; 6012 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 6013 zio_t *zio; 6014 vdev_t *vd; 6015 abd_t *pabd; 6016 void *lbuf, *buf; 6017 const char *s, *vdev; 6018 char *p, *dup, *flagstr; 6019 int i, error; 6020 6021 dup = strdup(thing); 6022 s = strtok(dup, ":"); 6023 vdev = s ? s : ""; 6024 s = strtok(NULL, ":"); 6025 offset = strtoull(s ? s : "", NULL, 16); 6026 s = strtok(NULL, ":"); 6027 size = strtoull(s ? s : "", NULL, 16); 6028 s = strtok(NULL, ":"); 6029 if (s) 6030 flagstr = strdup(s); 6031 else 6032 flagstr = strdup(""); 6033 6034 s = NULL; 6035 if (size == 0) 6036 s = "size must not be zero"; 6037 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 6038 s = "size must be a multiple of sector size"; 6039 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 6040 s = "offset must be a multiple of sector size"; 6041 if (s) { 6042 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 6043 free(dup); 6044 return; 6045 } 6046 6047 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 6048 for (i = 0; flagstr[i]; i++) { 6049 int bit = flagbits[(uchar_t)flagstr[i]]; 6050 6051 if (bit == 0) { 6052 (void) printf("***Invalid flag: %c\n", 6053 flagstr[i]); 6054 continue; 6055 } 6056 flags |= bit; 6057 6058 /* If it's not something with an argument, keep going */ 6059 if ((bit & (ZDB_FLAG_CHECKSUM | 6060 ZDB_FLAG_PRINT_BLKPTR)) == 0) 6061 continue; 6062 6063 p = &flagstr[i + 1]; 6064 if (bit == ZDB_FLAG_PRINT_BLKPTR) 6065 blkptr_offset = strtoull(p, &p, 16); 6066 if (*p != ':' && *p != '\0') { 6067 (void) printf("***Invalid flag arg: '%s'\n", s); 6068 free(dup); 6069 return; 6070 } 6071 } 6072 } 6073 free(flagstr); 6074 6075 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 6076 if (vd == NULL) { 6077 (void) printf("***Invalid vdev: %s\n", vdev); 6078 free(dup); 6079 return; 6080 } else { 6081 if (vd->vdev_path) 6082 (void) fprintf(stderr, "Found vdev: %s\n", 6083 vd->vdev_path); 6084 else 6085 (void) fprintf(stderr, "Found vdev type: %s\n", 6086 vd->vdev_ops->vdev_op_type); 6087 } 6088 6089 psize = size; 6090 lsize = size; 6091 6092 pabd = abd_alloc_linear(SPA_MAXBLOCKSIZE, B_FALSE); 6093 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 6094 6095 BP_ZERO(bp); 6096 6097 DVA_SET_VDEV(&dva[0], vd->vdev_id); 6098 DVA_SET_OFFSET(&dva[0], offset); 6099 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 6100 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 6101 6102 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 6103 6104 BP_SET_LSIZE(bp, lsize); 6105 BP_SET_PSIZE(bp, psize); 6106 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 6107 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 6108 BP_SET_TYPE(bp, DMU_OT_NONE); 6109 BP_SET_LEVEL(bp, 0); 6110 BP_SET_DEDUP(bp, 0); 6111 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 6112 6113 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 6114 zio = zio_root(spa, NULL, NULL, 0); 6115 6116 if (vd == vd->vdev_top) { 6117 /* 6118 * Treat this as a normal block read. 6119 */ 6120 zio_nowait(zio_read(zio, spa, bp, pabd, psize, NULL, NULL, 6121 ZIO_PRIORITY_SYNC_READ, 6122 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 6123 } else { 6124 /* 6125 * Treat this as a vdev child I/O. 6126 */ 6127 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pabd, 6128 psize, ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 6129 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 6130 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 6131 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW | ZIO_FLAG_OPTIONAL, 6132 NULL, NULL)); 6133 } 6134 6135 error = zio_wait(zio); 6136 spa_config_exit(spa, SCL_STATE, FTAG); 6137 6138 if (error) { 6139 (void) printf("Read of %s failed, error: %d\n", thing, error); 6140 goto out; 6141 } 6142 6143 if (flags & ZDB_FLAG_DECOMPRESS) { 6144 /* 6145 * We don't know how the data was compressed, so just try 6146 * every decompress function at every inflated blocksize. 6147 */ 6148 enum zio_compress c; 6149 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 6150 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 6151 6152 abd_copy_to_buf(pbuf2, pabd, psize); 6153 6154 VERIFY0(abd_iterate_func(pabd, psize, SPA_MAXBLOCKSIZE - psize, 6155 random_get_pseudo_bytes_cb, NULL)); 6156 6157 VERIFY0(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 6158 SPA_MAXBLOCKSIZE - psize)); 6159 6160 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 6161 lsize -= SPA_MINBLOCKSIZE) { 6162 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 6163 if (zio_decompress_data(c, pabd, 6164 lbuf, psize, lsize) == 0 && 6165 zio_decompress_data_buf(c, pbuf2, 6166 lbuf2, psize, lsize) == 0 && 6167 bcmp(lbuf, lbuf2, lsize) == 0) 6168 break; 6169 } 6170 if (c != ZIO_COMPRESS_FUNCTIONS) 6171 break; 6172 lsize -= SPA_MINBLOCKSIZE; 6173 } 6174 6175 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 6176 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 6177 6178 if (lsize <= psize) { 6179 (void) printf("Decompress of %s failed\n", thing); 6180 goto out; 6181 } 6182 buf = lbuf; 6183 size = lsize; 6184 } else { 6185 buf = abd_to_buf(pabd); 6186 size = psize; 6187 } 6188 6189 if (flags & ZDB_FLAG_PRINT_BLKPTR) 6190 zdb_print_blkptr((blkptr_t *)(void *) 6191 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 6192 else if (flags & ZDB_FLAG_RAW) 6193 zdb_dump_block_raw(buf, size, flags); 6194 else if (flags & ZDB_FLAG_INDIRECT) 6195 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 6196 flags); 6197 else if (flags & ZDB_FLAG_GBH) 6198 zdb_dump_gbh(buf, flags); 6199 else 6200 zdb_dump_block(thing, buf, size, flags); 6201 6202 out: 6203 abd_free(pabd); 6204 umem_free(lbuf, SPA_MAXBLOCKSIZE); 6205 free(dup); 6206 } 6207 6208 static void 6209 zdb_embedded_block(char *thing) 6210 { 6211 blkptr_t bp; 6212 unsigned long long *words = (void *)&bp; 6213 char *buf; 6214 int err; 6215 6216 bzero(&bp, sizeof (bp)); 6217 err = sscanf(thing, "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx:" 6218 "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx", 6219 words + 0, words + 1, words + 2, words + 3, 6220 words + 4, words + 5, words + 6, words + 7, 6221 words + 8, words + 9, words + 10, words + 11, 6222 words + 12, words + 13, words + 14, words + 15); 6223 if (err != 16) { 6224 (void) fprintf(stderr, "invalid input format\n"); 6225 exit(1); 6226 } 6227 ASSERT3U(BPE_GET_LSIZE(&bp), <=, SPA_MAXBLOCKSIZE); 6228 buf = malloc(SPA_MAXBLOCKSIZE); 6229 if (buf == NULL) { 6230 (void) fprintf(stderr, "out of memory\n"); 6231 exit(1); 6232 } 6233 err = decode_embedded_bp(&bp, buf, BPE_GET_LSIZE(&bp)); 6234 if (err != 0) { 6235 (void) fprintf(stderr, "decode failed: %u\n", err); 6236 exit(1); 6237 } 6238 zdb_dump_block_raw(buf, BPE_GET_LSIZE(&bp), 0); 6239 free(buf); 6240 } 6241 6242 int 6243 main(int argc, char **argv) 6244 { 6245 int c; 6246 struct rlimit rl = { 1024, 1024 }; 6247 spa_t *spa = NULL; 6248 objset_t *os = NULL; 6249 int dump_all = 1; 6250 int verbose = 0; 6251 int error = 0; 6252 char **searchdirs = NULL; 6253 int nsearch = 0; 6254 char *target, *target_pool; 6255 nvlist_t *policy = NULL; 6256 uint64_t max_txg = UINT64_MAX; 6257 int flags = ZFS_IMPORT_MISSING_LOG; 6258 int rewind = ZPOOL_NEVER_REWIND; 6259 char *spa_config_path_env; 6260 boolean_t target_is_spa = B_TRUE; 6261 nvlist_t *cfg = NULL; 6262 6263 (void) setrlimit(RLIMIT_NOFILE, &rl); 6264 (void) enable_extended_FILE_stdio(-1, -1); 6265 6266 dprintf_setup(&argc, argv); 6267 6268 /* 6269 * If there is an environment variable SPA_CONFIG_PATH it overrides 6270 * default spa_config_path setting. If -U flag is specified it will 6271 * override this environment variable settings once again. 6272 */ 6273 spa_config_path_env = getenv("SPA_CONFIG_PATH"); 6274 if (spa_config_path_env != NULL) 6275 spa_config_path = spa_config_path_env; 6276 6277 /* 6278 * For performance reasons, we set this tunable down. We do so before 6279 * the arg parsing section so that the user can override this value if 6280 * they choose. 6281 */ 6282 zfs_btree_verify_intensity = 3; 6283 6284 while ((c = getopt(argc, argv, 6285 "AbcCdDeEFGhiI:klLmMo:Op:PqRsSt:uU:vVx:X")) != -1) { 6286 switch (c) { 6287 case 'b': 6288 case 'c': 6289 case 'C': 6290 case 'd': 6291 case 'D': 6292 case 'E': 6293 case 'G': 6294 case 'h': 6295 case 'i': 6296 case 'l': 6297 case 'm': 6298 case 'M': 6299 case 'O': 6300 case 'R': 6301 case 's': 6302 case 'S': 6303 case 'u': 6304 dump_opt[c]++; 6305 dump_all = 0; 6306 break; 6307 case 'A': 6308 case 'e': 6309 case 'F': 6310 case 'k': 6311 case 'L': 6312 case 'P': 6313 case 'q': 6314 case 'X': 6315 dump_opt[c]++; 6316 break; 6317 /* NB: Sort single match options below. */ 6318 case 'I': 6319 max_inflight = strtoull(optarg, NULL, 0); 6320 if (max_inflight == 0) { 6321 (void) fprintf(stderr, "maximum number " 6322 "of inflight I/Os must be greater " 6323 "than 0\n"); 6324 usage(); 6325 } 6326 break; 6327 case 'o': 6328 error = set_global_var(optarg); 6329 if (error != 0) 6330 usage(); 6331 break; 6332 case 'p': 6333 if (searchdirs == NULL) { 6334 searchdirs = umem_alloc(sizeof (char *), 6335 UMEM_NOFAIL); 6336 } else { 6337 char **tmp = umem_alloc((nsearch + 1) * 6338 sizeof (char *), UMEM_NOFAIL); 6339 bcopy(searchdirs, tmp, nsearch * 6340 sizeof (char *)); 6341 umem_free(searchdirs, 6342 nsearch * sizeof (char *)); 6343 searchdirs = tmp; 6344 } 6345 searchdirs[nsearch++] = optarg; 6346 break; 6347 case 't': 6348 max_txg = strtoull(optarg, NULL, 0); 6349 if (max_txg < TXG_INITIAL) { 6350 (void) fprintf(stderr, "incorrect txg " 6351 "specified: %s\n", optarg); 6352 usage(); 6353 } 6354 break; 6355 case 'U': 6356 spa_config_path = optarg; 6357 if (spa_config_path[0] != '/') { 6358 (void) fprintf(stderr, 6359 "cachefile must be an absolute path " 6360 "(i.e. start with a slash)\n"); 6361 usage(); 6362 } 6363 break; 6364 case 'v': 6365 verbose++; 6366 break; 6367 case 'V': 6368 flags = ZFS_IMPORT_VERBATIM; 6369 break; 6370 case 'x': 6371 vn_dumpdir = optarg; 6372 break; 6373 default: 6374 usage(); 6375 break; 6376 } 6377 } 6378 6379 if (!dump_opt['e'] && searchdirs != NULL) { 6380 (void) fprintf(stderr, "-p option requires use of -e\n"); 6381 usage(); 6382 } 6383 6384 /* 6385 * ZDB does not typically re-read blocks; therefore limit the ARC 6386 * to 256 MB, which can be used entirely for metadata. 6387 */ 6388 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024; 6389 6390 /* 6391 * "zdb -c" uses checksum-verifying scrub i/os which are async reads. 6392 * "zdb -b" uses traversal prefetch which uses async reads. 6393 * For good performance, let several of them be active at once. 6394 */ 6395 zfs_vdev_async_read_max_active = 10; 6396 6397 /* 6398 * Disable reference tracking for better performance. 6399 */ 6400 reference_tracking_enable = B_FALSE; 6401 6402 /* 6403 * Do not fail spa_load when spa_load_verify fails. This is needed 6404 * to load non-idle pools. 6405 */ 6406 spa_load_verify_dryrun = B_TRUE; 6407 6408 kernel_init(FREAD); 6409 6410 if (dump_all) 6411 verbose = MAX(verbose, 1); 6412 6413 for (c = 0; c < 256; c++) { 6414 if (dump_all && strchr("AeEFklLOPRSX", c) == NULL) 6415 dump_opt[c] = 1; 6416 if (dump_opt[c]) 6417 dump_opt[c] += verbose; 6418 } 6419 6420 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 6421 zfs_recover = (dump_opt['A'] > 1); 6422 6423 argc -= optind; 6424 argv += optind; 6425 6426 if (argc < 2 && dump_opt['R']) 6427 usage(); 6428 6429 if (dump_opt['E']) { 6430 if (argc != 1) 6431 usage(); 6432 zdb_embedded_block(argv[0]); 6433 return (0); 6434 } 6435 6436 if (argc < 1) { 6437 if (!dump_opt['e'] && dump_opt['C']) { 6438 dump_cachefile(spa_config_path); 6439 return (0); 6440 } 6441 usage(); 6442 } 6443 6444 if (dump_opt['l']) 6445 return (dump_label(argv[0])); 6446 6447 if (dump_opt['O']) { 6448 if (argc != 2) 6449 usage(); 6450 dump_opt['v'] = verbose + 3; 6451 return (dump_path(argv[0], argv[1])); 6452 } 6453 6454 if (dump_opt['X'] || dump_opt['F']) 6455 rewind = ZPOOL_DO_REWIND | 6456 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 6457 6458 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 6459 nvlist_add_uint64(policy, ZPOOL_LOAD_REQUEST_TXG, max_txg) != 0 || 6460 nvlist_add_uint32(policy, ZPOOL_LOAD_REWIND_POLICY, rewind) != 0) 6461 fatal("internal error: %s", strerror(ENOMEM)); 6462 6463 error = 0; 6464 target = argv[0]; 6465 6466 if (strpbrk(target, "/@") != NULL) { 6467 size_t targetlen; 6468 6469 target_pool = strdup(target); 6470 *strpbrk(target_pool, "/@") = '\0'; 6471 6472 target_is_spa = B_FALSE; 6473 targetlen = strlen(target); 6474 if (targetlen && target[targetlen - 1] == '/') 6475 target[targetlen - 1] = '\0'; 6476 } else { 6477 target_pool = target; 6478 } 6479 6480 if (dump_opt['e']) { 6481 importargs_t args = { 0 }; 6482 6483 args.paths = nsearch; 6484 args.path = searchdirs; 6485 args.can_be_active = B_TRUE; 6486 6487 error = zpool_find_config(NULL, target_pool, &cfg, &args, 6488 &libzpool_config_ops); 6489 6490 if (error == 0) { 6491 6492 if (nvlist_add_nvlist(cfg, 6493 ZPOOL_LOAD_POLICY, policy) != 0) { 6494 fatal("can't open '%s': %s", 6495 target, strerror(ENOMEM)); 6496 } 6497 6498 if (dump_opt['C'] > 1) { 6499 (void) printf("\nConfiguration for import:\n"); 6500 dump_nvlist(cfg, 8); 6501 } 6502 6503 /* 6504 * Disable the activity check to allow examination of 6505 * active pools. 6506 */ 6507 error = spa_import(target_pool, cfg, NULL, 6508 flags | ZFS_IMPORT_SKIP_MMP); 6509 } 6510 } 6511 6512 char *checkpoint_pool = NULL; 6513 char *checkpoint_target = NULL; 6514 if (dump_opt['k']) { 6515 checkpoint_pool = import_checkpointed_state(target, cfg, 6516 &checkpoint_target); 6517 6518 if (checkpoint_target != NULL) 6519 target = checkpoint_target; 6520 6521 } 6522 6523 if (error == 0) { 6524 if (dump_opt['k'] && (target_is_spa || dump_opt['R'])) { 6525 ASSERT(checkpoint_pool != NULL); 6526 ASSERT(checkpoint_target == NULL); 6527 6528 error = spa_open(checkpoint_pool, &spa, FTAG); 6529 if (error != 0) { 6530 fatal("Tried to open pool \"%s\" but " 6531 "spa_open() failed with error %d\n", 6532 checkpoint_pool, error); 6533 } 6534 6535 } else if (target_is_spa || dump_opt['R']) { 6536 zdb_set_skip_mmp(target); 6537 error = spa_open_rewind(target, &spa, FTAG, policy, 6538 NULL); 6539 if (error) { 6540 /* 6541 * If we're missing the log device then 6542 * try opening the pool after clearing the 6543 * log state. 6544 */ 6545 mutex_enter(&spa_namespace_lock); 6546 if ((spa = spa_lookup(target)) != NULL && 6547 spa->spa_log_state == SPA_LOG_MISSING) { 6548 spa->spa_log_state = SPA_LOG_CLEAR; 6549 error = 0; 6550 } 6551 mutex_exit(&spa_namespace_lock); 6552 6553 if (!error) { 6554 error = spa_open_rewind(target, &spa, 6555 FTAG, policy, NULL); 6556 } 6557 } 6558 } else { 6559 zdb_set_skip_mmp(target); 6560 error = open_objset(target, DMU_OST_ANY, FTAG, &os); 6561 } 6562 } 6563 nvlist_free(policy); 6564 6565 if (error) 6566 fatal("can't open '%s': %s", target, strerror(error)); 6567 6568 argv++; 6569 argc--; 6570 if (!dump_opt['R']) { 6571 if (argc > 0) { 6572 zopt_objects = argc; 6573 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 6574 for (unsigned i = 0; i < zopt_objects; i++) { 6575 errno = 0; 6576 zopt_object[i] = strtoull(argv[i], NULL, 0); 6577 if (zopt_object[i] == 0 && errno != 0) 6578 fatal("bad number %s: %s", 6579 argv[i], strerror(errno)); 6580 } 6581 } 6582 if (os != NULL) { 6583 dump_dir(os); 6584 } else if (zopt_objects > 0 && !dump_opt['m']) { 6585 dump_dir(spa->spa_meta_objset); 6586 } else { 6587 dump_zpool(spa); 6588 } 6589 } else { 6590 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 6591 flagbits['c'] = ZDB_FLAG_CHECKSUM; 6592 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 6593 flagbits['e'] = ZDB_FLAG_BSWAP; 6594 flagbits['g'] = ZDB_FLAG_GBH; 6595 flagbits['i'] = ZDB_FLAG_INDIRECT; 6596 flagbits['p'] = ZDB_FLAG_PHYS; 6597 flagbits['r'] = ZDB_FLAG_RAW; 6598 6599 for (int i = 0; i < argc; i++) 6600 zdb_read_block(argv[i], spa); 6601 } 6602 6603 if (dump_opt['k']) { 6604 free(checkpoint_pool); 6605 if (!target_is_spa) 6606 free(checkpoint_target); 6607 } 6608 6609 if (os != NULL) 6610 close_objset(os, FTAG); 6611 else 6612 spa_close(spa, FTAG); 6613 6614 fuid_table_destroy(); 6615 6616 dump_debug_buffer(); 6617 6618 kernel_fini(); 6619 6620 return (error); 6621 } 6622