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, 2017 by Delphix. All rights reserved. 25 * Copyright (c) 2014 Integros [integros.com] 26 * Copyright 2017 Nexenta Systems, Inc. 27 * Copyright 2017 RackTop Systems. 28 */ 29 30 #include <stdio.h> 31 #include <unistd.h> 32 #include <stdio_ext.h> 33 #include <stdlib.h> 34 #include <ctype.h> 35 #include <sys/zfs_context.h> 36 #include <sys/spa.h> 37 #include <sys/spa_impl.h> 38 #include <sys/dmu.h> 39 #include <sys/zap.h> 40 #include <sys/fs/zfs.h> 41 #include <sys/zfs_znode.h> 42 #include <sys/zfs_sa.h> 43 #include <sys/sa.h> 44 #include <sys/sa_impl.h> 45 #include <sys/vdev.h> 46 #include <sys/vdev_impl.h> 47 #include <sys/metaslab_impl.h> 48 #include <sys/dmu_objset.h> 49 #include <sys/dsl_dir.h> 50 #include <sys/dsl_dataset.h> 51 #include <sys/dsl_pool.h> 52 #include <sys/dbuf.h> 53 #include <sys/zil.h> 54 #include <sys/zil_impl.h> 55 #include <sys/stat.h> 56 #include <sys/resource.h> 57 #include <sys/dmu_traverse.h> 58 #include <sys/zio_checksum.h> 59 #include <sys/zio_compress.h> 60 #include <sys/zfs_fuid.h> 61 #include <sys/arc.h> 62 #include <sys/ddt.h> 63 #include <sys/zfeature.h> 64 #include <sys/abd.h> 65 #include <sys/blkptr.h> 66 #include <zfs_comutil.h> 67 #include <libcmdutils.h> 68 #undef verify 69 #include <libzfs.h> 70 71 #include "zdb.h" 72 73 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \ 74 zio_compress_table[(idx)].ci_name : "UNKNOWN") 75 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \ 76 zio_checksum_table[(idx)].ci_name : "UNKNOWN") 77 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \ 78 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \ 79 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN") 80 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \ 81 (idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA ? \ 82 DMU_OT_ZAP_OTHER : \ 83 (idx) == DMU_OTN_UINT64_DATA || (idx) == DMU_OTN_UINT64_METADATA ? \ 84 DMU_OT_UINT64_OTHER : DMU_OT_NUMTYPES) 85 86 #ifndef lint 87 extern int reference_tracking_enable; 88 extern boolean_t zfs_recover; 89 extern uint64_t zfs_arc_max, zfs_arc_meta_limit; 90 extern int zfs_vdev_async_read_max_active; 91 extern int aok; 92 extern boolean_t spa_load_verify_dryrun; 93 #else 94 int reference_tracking_enable; 95 boolean_t zfs_recover; 96 uint64_t zfs_arc_max, zfs_arc_meta_limit; 97 int zfs_vdev_async_read_max_active; 98 int aok; 99 boolean_t spa_load_verify_dryrun; 100 #endif 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 libzfs_handle_t *g_zfs; 110 uint64_t max_inflight = 1000; 111 112 static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *); 113 114 /* 115 * These libumem hooks provide a reasonable set of defaults for the allocator's 116 * debugging facilities. 117 */ 118 const char * 119 _umem_debug_init() 120 { 121 return ("default,verbose"); /* $UMEM_DEBUG setting */ 122 } 123 124 const char * 125 _umem_logging_init(void) 126 { 127 return ("fail,contents"); /* $UMEM_LOGGING setting */ 128 } 129 130 static void 131 usage(void) 132 { 133 (void) fprintf(stderr, 134 "Usage:\t%s [-AbcdDFGhikLMPsvX] [-e [-V] [-p <path> ...]] " 135 "[-I <inflight I/Os>]\n" 136 "\t\t[-o <var>=<value>]... [-t <txg>] [-U <cache>] [-x <dumpdir>]\n" 137 "\t\t[<poolname> [<object> ...]]\n" 138 "\t%s [-AdiPv] [-e [-V] [-p <path> ...]] [-U <cache>] <dataset> " 139 "[<object> ...]\n" 140 "\t%s -C [-A] [-U <cache>]\n" 141 "\t%s -l [-Aqu] <device>\n" 142 "\t%s -m [-AFLPX] [-e [-V] [-p <path> ...]] [-t <txg>] " 143 "[-U <cache>]\n\t\t<poolname> [<vdev> [<metaslab> ...]]\n" 144 "\t%s -O <dataset> <path>\n" 145 "\t%s -R [-A] [-e [-V] [-p <path> ...]] [-U <cache>]\n" 146 "\t\t<poolname> <vdev>:<offset>:<size>[:<flags>]\n" 147 "\t%s -E [-A] word0:word1:...:word15\n" 148 "\t%s -S [-AP] [-e [-V] [-p <path> ...]] [-U <cache>] " 149 "<poolname>\n\n", 150 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, 151 cmdname, cmdname); 152 153 (void) fprintf(stderr, " Dataset name must include at least one " 154 "separator character '/' or '@'\n"); 155 (void) fprintf(stderr, " If dataset name is specified, only that " 156 "dataset is dumped\n"); 157 (void) fprintf(stderr, " If object numbers are specified, only " 158 "those objects are dumped\n\n"); 159 (void) fprintf(stderr, " Options to control amount of output:\n"); 160 (void) fprintf(stderr, " -b block statistics\n"); 161 (void) fprintf(stderr, " -c checksum all metadata (twice for " 162 "all data) blocks\n"); 163 (void) fprintf(stderr, " -C config (or cachefile if alone)\n"); 164 (void) fprintf(stderr, " -d dataset(s)\n"); 165 (void) fprintf(stderr, " -D dedup statistics\n"); 166 (void) fprintf(stderr, " -E decode and display block from an " 167 "embedded block pointer\n"); 168 (void) fprintf(stderr, " -h pool history\n"); 169 (void) fprintf(stderr, " -i intent logs\n"); 170 (void) fprintf(stderr, " -l read label contents\n"); 171 (void) fprintf(stderr, " -k examine the checkpointed state " 172 "of the pool\n"); 173 (void) fprintf(stderr, " -L disable leak tracking (do not " 174 "load spacemaps)\n"); 175 (void) fprintf(stderr, " -m metaslabs\n"); 176 (void) fprintf(stderr, " -M metaslab groups\n"); 177 (void) fprintf(stderr, " -O perform object lookups by path\n"); 178 (void) fprintf(stderr, " -R read and display block from a " 179 "device\n"); 180 (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); 181 (void) fprintf(stderr, " -S simulate dedup to measure effect\n"); 182 (void) fprintf(stderr, " -v verbose (applies to all " 183 "others)\n\n"); 184 (void) fprintf(stderr, " Below options are intended for use " 185 "with other options:\n"); 186 (void) fprintf(stderr, " -A ignore assertions (-A), enable " 187 "panic recovery (-AA) or both (-AAA)\n"); 188 (void) fprintf(stderr, " -e pool is exported/destroyed/" 189 "has altroot/not in a cachefile\n"); 190 (void) fprintf(stderr, " -F attempt automatic rewind within " 191 "safe range of transaction groups\n"); 192 (void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before " 193 "exiting\n"); 194 (void) fprintf(stderr, " -I <number of inflight I/Os> -- " 195 "specify the maximum number of " 196 "checksumming I/Os [default is 200]\n"); 197 (void) fprintf(stderr, " -o <variable>=<value> set global " 198 "variable to an unsigned 32-bit integer value\n"); 199 (void) fprintf(stderr, " -p <path> -- use one or more with " 200 "-e to specify path to vdev dir\n"); 201 (void) fprintf(stderr, " -P print numbers in parseable form\n"); 202 (void) fprintf(stderr, " -q don't print label contents\n"); 203 (void) fprintf(stderr, " -t <txg> -- highest txg to use when " 204 "searching for uberblocks\n"); 205 (void) fprintf(stderr, " -u uberblock\n"); 206 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate " 207 "cachefile\n"); 208 (void) fprintf(stderr, " -V do verbatim import\n"); 209 (void) fprintf(stderr, " -x <dumpdir> -- " 210 "dump all read blocks into specified directory\n"); 211 (void) fprintf(stderr, " -X attempt extreme rewind (does not " 212 "work with dataset)\n\n"); 213 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 214 "to make only that option verbose\n"); 215 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 216 exit(1); 217 } 218 219 static void 220 dump_debug_buffer() 221 { 222 if (dump_opt['G']) { 223 (void) printf("\n"); 224 zfs_dbgmsg_print("zdb"); 225 } 226 } 227 228 /* 229 * Called for usage errors that are discovered after a call to spa_open(), 230 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. 231 */ 232 233 static void 234 fatal(const char *fmt, ...) 235 { 236 va_list ap; 237 238 va_start(ap, fmt); 239 (void) fprintf(stderr, "%s: ", cmdname); 240 (void) vfprintf(stderr, fmt, ap); 241 va_end(ap); 242 (void) fprintf(stderr, "\n"); 243 244 dump_debug_buffer(); 245 246 exit(1); 247 } 248 249 /* ARGSUSED */ 250 static void 251 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 252 { 253 nvlist_t *nv; 254 size_t nvsize = *(uint64_t *)data; 255 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 256 257 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH)); 258 259 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 260 261 umem_free(packed, nvsize); 262 263 dump_nvlist(nv, 8); 264 265 nvlist_free(nv); 266 } 267 268 /* ARGSUSED */ 269 static void 270 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size) 271 { 272 spa_history_phys_t *shp = data; 273 274 if (shp == NULL) 275 return; 276 277 (void) printf("\t\tpool_create_len = %llu\n", 278 (u_longlong_t)shp->sh_pool_create_len); 279 (void) printf("\t\tphys_max_off = %llu\n", 280 (u_longlong_t)shp->sh_phys_max_off); 281 (void) printf("\t\tbof = %llu\n", 282 (u_longlong_t)shp->sh_bof); 283 (void) printf("\t\teof = %llu\n", 284 (u_longlong_t)shp->sh_eof); 285 (void) printf("\t\trecords_lost = %llu\n", 286 (u_longlong_t)shp->sh_records_lost); 287 } 288 289 static void 290 zdb_nicenum(uint64_t num, char *buf, size_t buflen) 291 { 292 if (dump_opt['P']) 293 (void) snprintf(buf, buflen, "%llu", (longlong_t)num); 294 else 295 nicenum(num, buf, sizeof (buf)); 296 } 297 298 static const char histo_stars[] = "****************************************"; 299 static const uint64_t histo_width = sizeof (histo_stars) - 1; 300 301 static void 302 dump_histogram(const uint64_t *histo, int size, int offset) 303 { 304 int i; 305 int minidx = size - 1; 306 int maxidx = 0; 307 uint64_t max = 0; 308 309 for (i = 0; i < size; i++) { 310 if (histo[i] > max) 311 max = histo[i]; 312 if (histo[i] > 0 && i > maxidx) 313 maxidx = i; 314 if (histo[i] > 0 && i < minidx) 315 minidx = i; 316 } 317 318 if (max < histo_width) 319 max = histo_width; 320 321 for (i = minidx; i <= maxidx; i++) { 322 (void) printf("\t\t\t%3u: %6llu %s\n", 323 i + offset, (u_longlong_t)histo[i], 324 &histo_stars[(max - histo[i]) * histo_width / max]); 325 } 326 } 327 328 static void 329 dump_zap_stats(objset_t *os, uint64_t object) 330 { 331 int error; 332 zap_stats_t zs; 333 334 error = zap_get_stats(os, object, &zs); 335 if (error) 336 return; 337 338 if (zs.zs_ptrtbl_len == 0) { 339 ASSERT(zs.zs_num_blocks == 1); 340 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 341 (u_longlong_t)zs.zs_blocksize, 342 (u_longlong_t)zs.zs_num_entries); 343 return; 344 } 345 346 (void) printf("\tFat ZAP stats:\n"); 347 348 (void) printf("\t\tPointer table:\n"); 349 (void) printf("\t\t\t%llu elements\n", 350 (u_longlong_t)zs.zs_ptrtbl_len); 351 (void) printf("\t\t\tzt_blk: %llu\n", 352 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 353 (void) printf("\t\t\tzt_numblks: %llu\n", 354 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 355 (void) printf("\t\t\tzt_shift: %llu\n", 356 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 357 (void) printf("\t\t\tzt_blks_copied: %llu\n", 358 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 359 (void) printf("\t\t\tzt_nextblk: %llu\n", 360 (u_longlong_t)zs.zs_ptrtbl_nextblk); 361 362 (void) printf("\t\tZAP entries: %llu\n", 363 (u_longlong_t)zs.zs_num_entries); 364 (void) printf("\t\tLeaf blocks: %llu\n", 365 (u_longlong_t)zs.zs_num_leafs); 366 (void) printf("\t\tTotal blocks: %llu\n", 367 (u_longlong_t)zs.zs_num_blocks); 368 (void) printf("\t\tzap_block_type: 0x%llx\n", 369 (u_longlong_t)zs.zs_block_type); 370 (void) printf("\t\tzap_magic: 0x%llx\n", 371 (u_longlong_t)zs.zs_magic); 372 (void) printf("\t\tzap_salt: 0x%llx\n", 373 (u_longlong_t)zs.zs_salt); 374 375 (void) printf("\t\tLeafs with 2^n pointers:\n"); 376 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0); 377 378 (void) printf("\t\tBlocks with n*5 entries:\n"); 379 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0); 380 381 (void) printf("\t\tBlocks n/10 full:\n"); 382 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0); 383 384 (void) printf("\t\tEntries with n chunks:\n"); 385 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0); 386 387 (void) printf("\t\tBuckets with n entries:\n"); 388 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0); 389 } 390 391 /*ARGSUSED*/ 392 static void 393 dump_none(objset_t *os, uint64_t object, void *data, size_t size) 394 { 395 } 396 397 /*ARGSUSED*/ 398 static void 399 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size) 400 { 401 (void) printf("\tUNKNOWN OBJECT TYPE\n"); 402 } 403 404 /*ARGSUSED*/ 405 static void 406 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 407 { 408 } 409 410 /*ARGSUSED*/ 411 static void 412 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 413 { 414 } 415 416 /*ARGSUSED*/ 417 static void 418 dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 419 { 420 zap_cursor_t zc; 421 zap_attribute_t attr; 422 void *prop; 423 unsigned i; 424 425 dump_zap_stats(os, object); 426 (void) printf("\n"); 427 428 for (zap_cursor_init(&zc, os, object); 429 zap_cursor_retrieve(&zc, &attr) == 0; 430 zap_cursor_advance(&zc)) { 431 (void) printf("\t\t%s = ", attr.za_name); 432 if (attr.za_num_integers == 0) { 433 (void) printf("\n"); 434 continue; 435 } 436 prop = umem_zalloc(attr.za_num_integers * 437 attr.za_integer_length, UMEM_NOFAIL); 438 (void) zap_lookup(os, object, attr.za_name, 439 attr.za_integer_length, attr.za_num_integers, prop); 440 if (attr.za_integer_length == 1) { 441 (void) printf("%s", (char *)prop); 442 } else { 443 for (i = 0; i < attr.za_num_integers; i++) { 444 switch (attr.za_integer_length) { 445 case 2: 446 (void) printf("%u ", 447 ((uint16_t *)prop)[i]); 448 break; 449 case 4: 450 (void) printf("%u ", 451 ((uint32_t *)prop)[i]); 452 break; 453 case 8: 454 (void) printf("%lld ", 455 (u_longlong_t)((int64_t *)prop)[i]); 456 break; 457 } 458 } 459 } 460 (void) printf("\n"); 461 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 462 } 463 zap_cursor_fini(&zc); 464 } 465 466 static void 467 dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size) 468 { 469 bpobj_phys_t *bpop = data; 470 char bytes[32], comp[32], uncomp[32]; 471 472 /* make sure the output won't get truncated */ 473 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 474 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ); 475 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ); 476 477 if (bpop == NULL) 478 return; 479 480 zdb_nicenum(bpop->bpo_bytes, bytes, sizeof (bytes)); 481 zdb_nicenum(bpop->bpo_comp, comp, sizeof (comp)); 482 zdb_nicenum(bpop->bpo_uncomp, uncomp, sizeof (uncomp)); 483 484 (void) printf("\t\tnum_blkptrs = %llu\n", 485 (u_longlong_t)bpop->bpo_num_blkptrs); 486 (void) printf("\t\tbytes = %s\n", bytes); 487 if (size >= BPOBJ_SIZE_V1) { 488 (void) printf("\t\tcomp = %s\n", comp); 489 (void) printf("\t\tuncomp = %s\n", uncomp); 490 } 491 if (size >= sizeof (*bpop)) { 492 (void) printf("\t\tsubobjs = %llu\n", 493 (u_longlong_t)bpop->bpo_subobjs); 494 (void) printf("\t\tnum_subobjs = %llu\n", 495 (u_longlong_t)bpop->bpo_num_subobjs); 496 } 497 498 if (dump_opt['d'] < 5) 499 return; 500 501 for (uint64_t i = 0; i < bpop->bpo_num_blkptrs; i++) { 502 char blkbuf[BP_SPRINTF_LEN]; 503 blkptr_t bp; 504 505 int err = dmu_read(os, object, 506 i * sizeof (bp), sizeof (bp), &bp, 0); 507 if (err != 0) { 508 (void) printf("got error %u from dmu_read\n", err); 509 break; 510 } 511 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp); 512 (void) printf("\t%s\n", blkbuf); 513 } 514 } 515 516 /* ARGSUSED */ 517 static void 518 dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size) 519 { 520 dmu_object_info_t doi; 521 522 VERIFY0(dmu_object_info(os, object, &doi)); 523 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP); 524 525 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0); 526 if (err != 0) { 527 (void) printf("got error %u from dmu_read\n", err); 528 kmem_free(subobjs, doi.doi_max_offset); 529 return; 530 } 531 532 int64_t last_nonzero = -1; 533 for (uint64_t i = 0; i < doi.doi_max_offset / 8; i++) { 534 if (subobjs[i] != 0) 535 last_nonzero = i; 536 } 537 538 for (int64_t i = 0; i <= last_nonzero; i++) { 539 (void) printf("\t%llu\n", (longlong_t)subobjs[i]); 540 } 541 kmem_free(subobjs, doi.doi_max_offset); 542 } 543 544 /*ARGSUSED*/ 545 static void 546 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size) 547 { 548 dump_zap_stats(os, object); 549 /* contents are printed elsewhere, properly decoded */ 550 } 551 552 /*ARGSUSED*/ 553 static void 554 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size) 555 { 556 zap_cursor_t zc; 557 zap_attribute_t attr; 558 559 dump_zap_stats(os, object); 560 (void) printf("\n"); 561 562 for (zap_cursor_init(&zc, os, object); 563 zap_cursor_retrieve(&zc, &attr) == 0; 564 zap_cursor_advance(&zc)) { 565 (void) printf("\t\t%s = ", attr.za_name); 566 if (attr.za_num_integers == 0) { 567 (void) printf("\n"); 568 continue; 569 } 570 (void) printf(" %llx : [%d:%d:%d]\n", 571 (u_longlong_t)attr.za_first_integer, 572 (int)ATTR_LENGTH(attr.za_first_integer), 573 (int)ATTR_BSWAP(attr.za_first_integer), 574 (int)ATTR_NUM(attr.za_first_integer)); 575 } 576 zap_cursor_fini(&zc); 577 } 578 579 /*ARGSUSED*/ 580 static void 581 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size) 582 { 583 zap_cursor_t zc; 584 zap_attribute_t attr; 585 uint16_t *layout_attrs; 586 unsigned i; 587 588 dump_zap_stats(os, object); 589 (void) printf("\n"); 590 591 for (zap_cursor_init(&zc, os, object); 592 zap_cursor_retrieve(&zc, &attr) == 0; 593 zap_cursor_advance(&zc)) { 594 (void) printf("\t\t%s = [", attr.za_name); 595 if (attr.za_num_integers == 0) { 596 (void) printf("\n"); 597 continue; 598 } 599 600 VERIFY(attr.za_integer_length == 2); 601 layout_attrs = umem_zalloc(attr.za_num_integers * 602 attr.za_integer_length, UMEM_NOFAIL); 603 604 VERIFY(zap_lookup(os, object, attr.za_name, 605 attr.za_integer_length, 606 attr.za_num_integers, layout_attrs) == 0); 607 608 for (i = 0; i != attr.za_num_integers; i++) 609 (void) printf(" %d ", (int)layout_attrs[i]); 610 (void) printf("]\n"); 611 umem_free(layout_attrs, 612 attr.za_num_integers * attr.za_integer_length); 613 } 614 zap_cursor_fini(&zc); 615 } 616 617 /*ARGSUSED*/ 618 static void 619 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 620 { 621 zap_cursor_t zc; 622 zap_attribute_t attr; 623 const char *typenames[] = { 624 /* 0 */ "not specified", 625 /* 1 */ "FIFO", 626 /* 2 */ "Character Device", 627 /* 3 */ "3 (invalid)", 628 /* 4 */ "Directory", 629 /* 5 */ "5 (invalid)", 630 /* 6 */ "Block Device", 631 /* 7 */ "7 (invalid)", 632 /* 8 */ "Regular File", 633 /* 9 */ "9 (invalid)", 634 /* 10 */ "Symbolic Link", 635 /* 11 */ "11 (invalid)", 636 /* 12 */ "Socket", 637 /* 13 */ "Door", 638 /* 14 */ "Event Port", 639 /* 15 */ "15 (invalid)", 640 }; 641 642 dump_zap_stats(os, object); 643 (void) printf("\n"); 644 645 for (zap_cursor_init(&zc, os, object); 646 zap_cursor_retrieve(&zc, &attr) == 0; 647 zap_cursor_advance(&zc)) { 648 (void) printf("\t\t%s = %lld (type: %s)\n", 649 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 650 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 651 } 652 zap_cursor_fini(&zc); 653 } 654 655 static int 656 get_dtl_refcount(vdev_t *vd) 657 { 658 int refcount = 0; 659 660 if (vd->vdev_ops->vdev_op_leaf) { 661 space_map_t *sm = vd->vdev_dtl_sm; 662 663 if (sm != NULL && 664 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 665 return (1); 666 return (0); 667 } 668 669 for (unsigned c = 0; c < vd->vdev_children; c++) 670 refcount += get_dtl_refcount(vd->vdev_child[c]); 671 return (refcount); 672 } 673 674 static int 675 get_metaslab_refcount(vdev_t *vd) 676 { 677 int refcount = 0; 678 679 if (vd->vdev_top == vd) { 680 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 681 space_map_t *sm = vd->vdev_ms[m]->ms_sm; 682 683 if (sm != NULL && 684 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 685 refcount++; 686 } 687 } 688 for (unsigned c = 0; c < vd->vdev_children; c++) 689 refcount += get_metaslab_refcount(vd->vdev_child[c]); 690 691 return (refcount); 692 } 693 694 static int 695 get_obsolete_refcount(vdev_t *vd) 696 { 697 int refcount = 0; 698 699 uint64_t obsolete_sm_obj = vdev_obsolete_sm_object(vd); 700 if (vd->vdev_top == vd && obsolete_sm_obj != 0) { 701 dmu_object_info_t doi; 702 VERIFY0(dmu_object_info(vd->vdev_spa->spa_meta_objset, 703 obsolete_sm_obj, &doi)); 704 if (doi.doi_bonus_size == sizeof (space_map_phys_t)) { 705 refcount++; 706 } 707 } else { 708 ASSERT3P(vd->vdev_obsolete_sm, ==, NULL); 709 ASSERT3U(obsolete_sm_obj, ==, 0); 710 } 711 for (unsigned c = 0; c < vd->vdev_children; c++) { 712 refcount += get_obsolete_refcount(vd->vdev_child[c]); 713 } 714 715 return (refcount); 716 } 717 718 static int 719 get_prev_obsolete_spacemap_refcount(spa_t *spa) 720 { 721 uint64_t prev_obj = 722 spa->spa_condensing_indirect_phys.scip_prev_obsolete_sm_object; 723 if (prev_obj != 0) { 724 dmu_object_info_t doi; 725 VERIFY0(dmu_object_info(spa->spa_meta_objset, prev_obj, &doi)); 726 if (doi.doi_bonus_size == sizeof (space_map_phys_t)) { 727 return (1); 728 } 729 } 730 return (0); 731 } 732 733 static int 734 get_checkpoint_refcount(vdev_t *vd) 735 { 736 int refcount = 0; 737 738 if (vd->vdev_top == vd && vd->vdev_top_zap != 0 && 739 zap_contains(spa_meta_objset(vd->vdev_spa), 740 vd->vdev_top_zap, VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) == 0) 741 refcount++; 742 743 for (uint64_t c = 0; c < vd->vdev_children; c++) 744 refcount += get_checkpoint_refcount(vd->vdev_child[c]); 745 746 return (refcount); 747 } 748 749 static int 750 verify_spacemap_refcounts(spa_t *spa) 751 { 752 uint64_t expected_refcount = 0; 753 uint64_t actual_refcount; 754 755 (void) feature_get_refcount(spa, 756 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM], 757 &expected_refcount); 758 actual_refcount = get_dtl_refcount(spa->spa_root_vdev); 759 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev); 760 actual_refcount += get_obsolete_refcount(spa->spa_root_vdev); 761 actual_refcount += get_prev_obsolete_spacemap_refcount(spa); 762 actual_refcount += get_checkpoint_refcount(spa->spa_root_vdev); 763 764 if (expected_refcount != actual_refcount) { 765 (void) printf("space map refcount mismatch: expected %lld != " 766 "actual %lld\n", 767 (longlong_t)expected_refcount, 768 (longlong_t)actual_refcount); 769 return (2); 770 } 771 return (0); 772 } 773 774 static void 775 dump_spacemap(objset_t *os, space_map_t *sm) 776 { 777 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 778 "INVALID", "INVALID", "INVALID", "INVALID" }; 779 780 if (sm == NULL) 781 return; 782 783 (void) printf("space map object %llu:\n", 784 (longlong_t)sm->sm_phys->smp_object); 785 (void) printf(" smp_objsize = 0x%llx\n", 786 (longlong_t)sm->sm_phys->smp_objsize); 787 (void) printf(" smp_alloc = 0x%llx\n", 788 (longlong_t)sm->sm_phys->smp_alloc); 789 790 /* 791 * Print out the freelist entries in both encoded and decoded form. 792 */ 793 uint8_t mapshift = sm->sm_shift; 794 int64_t alloc = 0; 795 uint64_t word; 796 for (uint64_t offset = 0; offset < space_map_length(sm); 797 offset += sizeof (word)) { 798 799 VERIFY0(dmu_read(os, space_map_object(sm), offset, 800 sizeof (word), &word, DMU_READ_PREFETCH)); 801 802 if (sm_entry_is_debug(word)) { 803 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n", 804 (u_longlong_t)(offset / sizeof (word)), 805 ddata[SM_DEBUG_ACTION_DECODE(word)], 806 (u_longlong_t)SM_DEBUG_TXG_DECODE(word), 807 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(word)); 808 continue; 809 } 810 811 uint8_t words; 812 char entry_type; 813 uint64_t entry_off, entry_run, entry_vdev = SM_NO_VDEVID; 814 815 if (sm_entry_is_single_word(word)) { 816 entry_type = (SM_TYPE_DECODE(word) == SM_ALLOC) ? 817 'A' : 'F'; 818 entry_off = (SM_OFFSET_DECODE(word) << mapshift) + 819 sm->sm_start; 820 entry_run = SM_RUN_DECODE(word) << mapshift; 821 words = 1; 822 } else { 823 /* it is a two-word entry so we read another word */ 824 ASSERT(sm_entry_is_double_word(word)); 825 826 uint64_t extra_word; 827 offset += sizeof (extra_word); 828 VERIFY0(dmu_read(os, space_map_object(sm), offset, 829 sizeof (extra_word), &extra_word, 830 DMU_READ_PREFETCH)); 831 832 ASSERT3U(offset, <=, space_map_length(sm)); 833 834 entry_run = SM2_RUN_DECODE(word) << mapshift; 835 entry_vdev = SM2_VDEV_DECODE(word); 836 entry_type = (SM2_TYPE_DECODE(extra_word) == SM_ALLOC) ? 837 'A' : 'F'; 838 entry_off = (SM2_OFFSET_DECODE(extra_word) << 839 mapshift) + sm->sm_start; 840 words = 2; 841 } 842 843 (void) printf("\t [%6llu] %c range:" 844 " %010llx-%010llx size: %06llx vdev: %06llu words: %u\n", 845 (u_longlong_t)(offset / sizeof (word)), 846 entry_type, (u_longlong_t)entry_off, 847 (u_longlong_t)(entry_off + entry_run), 848 (u_longlong_t)entry_run, 849 (u_longlong_t)entry_vdev, words); 850 851 if (entry_type == 'A') 852 alloc += entry_run; 853 else 854 alloc -= entry_run; 855 } 856 if ((uint64_t)alloc != space_map_allocated(sm)) { 857 (void) printf("space_map_object alloc (%lld) INCONSISTENT " 858 "with space map summary (%lld)\n", 859 (longlong_t)space_map_allocated(sm), (longlong_t)alloc); 860 } 861 } 862 863 static void 864 dump_metaslab_stats(metaslab_t *msp) 865 { 866 char maxbuf[32]; 867 range_tree_t *rt = msp->ms_allocatable; 868 avl_tree_t *t = &msp->ms_allocatable_by_size; 869 int free_pct = range_tree_space(rt) * 100 / msp->ms_size; 870 871 /* max sure nicenum has enough space */ 872 CTASSERT(sizeof (maxbuf) >= NN_NUMBUF_SZ); 873 874 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf, sizeof (maxbuf)); 875 876 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", 877 "segments", avl_numnodes(t), "maxsize", maxbuf, 878 "freepct", free_pct); 879 (void) printf("\tIn-memory histogram:\n"); 880 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 881 } 882 883 static void 884 dump_metaslab(metaslab_t *msp) 885 { 886 vdev_t *vd = msp->ms_group->mg_vd; 887 spa_t *spa = vd->vdev_spa; 888 space_map_t *sm = msp->ms_sm; 889 char freebuf[32]; 890 891 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf, 892 sizeof (freebuf)); 893 894 (void) printf( 895 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", 896 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start, 897 (u_longlong_t)space_map_object(sm), freebuf); 898 899 if (dump_opt['m'] > 2 && !dump_opt['L']) { 900 mutex_enter(&msp->ms_lock); 901 metaslab_load_wait(msp); 902 if (!msp->ms_loaded) { 903 VERIFY0(metaslab_load(msp)); 904 range_tree_stat_verify(msp->ms_allocatable); 905 } 906 dump_metaslab_stats(msp); 907 metaslab_unload(msp); 908 mutex_exit(&msp->ms_lock); 909 } 910 911 if (dump_opt['m'] > 1 && sm != NULL && 912 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) { 913 /* 914 * The space map histogram represents free space in chunks 915 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift). 916 */ 917 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n", 918 (u_longlong_t)msp->ms_fragmentation); 919 dump_histogram(sm->sm_phys->smp_histogram, 920 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift); 921 } 922 923 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) { 924 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift)); 925 926 dump_spacemap(spa->spa_meta_objset, msp->ms_sm); 927 } 928 } 929 930 static void 931 print_vdev_metaslab_header(vdev_t *vd) 932 { 933 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n", 934 (u_longlong_t)vd->vdev_id, 935 "metaslabs", (u_longlong_t)vd->vdev_ms_count, 936 "offset", "spacemap", "free"); 937 (void) printf("\t%15s %19s %15s %10s\n", 938 "---------------", "-------------------", 939 "---------------", "-------------"); 940 } 941 942 static void 943 dump_metaslab_groups(spa_t *spa) 944 { 945 vdev_t *rvd = spa->spa_root_vdev; 946 metaslab_class_t *mc = spa_normal_class(spa); 947 uint64_t fragmentation; 948 949 metaslab_class_histogram_verify(mc); 950 951 for (unsigned c = 0; c < rvd->vdev_children; c++) { 952 vdev_t *tvd = rvd->vdev_child[c]; 953 metaslab_group_t *mg = tvd->vdev_mg; 954 955 if (mg->mg_class != mc) 956 continue; 957 958 metaslab_group_histogram_verify(mg); 959 mg->mg_fragmentation = metaslab_group_fragmentation(mg); 960 961 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t" 962 "fragmentation", 963 (u_longlong_t)tvd->vdev_id, 964 (u_longlong_t)tvd->vdev_ms_count); 965 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) { 966 (void) printf("%3s\n", "-"); 967 } else { 968 (void) printf("%3llu%%\n", 969 (u_longlong_t)mg->mg_fragmentation); 970 } 971 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 972 } 973 974 (void) printf("\tpool %s\tfragmentation", spa_name(spa)); 975 fragmentation = metaslab_class_fragmentation(mc); 976 if (fragmentation == ZFS_FRAG_INVALID) 977 (void) printf("\t%3s\n", "-"); 978 else 979 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation); 980 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 981 } 982 983 static void 984 print_vdev_indirect(vdev_t *vd) 985 { 986 vdev_indirect_config_t *vic = &vd->vdev_indirect_config; 987 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 988 vdev_indirect_births_t *vib = vd->vdev_indirect_births; 989 990 if (vim == NULL) { 991 ASSERT3P(vib, ==, NULL); 992 return; 993 } 994 995 ASSERT3U(vdev_indirect_mapping_object(vim), ==, 996 vic->vic_mapping_object); 997 ASSERT3U(vdev_indirect_births_object(vib), ==, 998 vic->vic_births_object); 999 1000 (void) printf("indirect births obj %llu:\n", 1001 (longlong_t)vic->vic_births_object); 1002 (void) printf(" vib_count = %llu\n", 1003 (longlong_t)vdev_indirect_births_count(vib)); 1004 for (uint64_t i = 0; i < vdev_indirect_births_count(vib); i++) { 1005 vdev_indirect_birth_entry_phys_t *cur_vibe = 1006 &vib->vib_entries[i]; 1007 (void) printf("\toffset %llx -> txg %llu\n", 1008 (longlong_t)cur_vibe->vibe_offset, 1009 (longlong_t)cur_vibe->vibe_phys_birth_txg); 1010 } 1011 (void) printf("\n"); 1012 1013 (void) printf("indirect mapping obj %llu:\n", 1014 (longlong_t)vic->vic_mapping_object); 1015 (void) printf(" vim_max_offset = 0x%llx\n", 1016 (longlong_t)vdev_indirect_mapping_max_offset(vim)); 1017 (void) printf(" vim_bytes_mapped = 0x%llx\n", 1018 (longlong_t)vdev_indirect_mapping_bytes_mapped(vim)); 1019 (void) printf(" vim_count = %llu\n", 1020 (longlong_t)vdev_indirect_mapping_num_entries(vim)); 1021 1022 if (dump_opt['d'] <= 5 && dump_opt['m'] <= 3) 1023 return; 1024 1025 uint32_t *counts = vdev_indirect_mapping_load_obsolete_counts(vim); 1026 1027 for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) { 1028 vdev_indirect_mapping_entry_phys_t *vimep = 1029 &vim->vim_entries[i]; 1030 (void) printf("\t<%llx:%llx:%llx> -> " 1031 "<%llx:%llx:%llx> (%x obsolete)\n", 1032 (longlong_t)vd->vdev_id, 1033 (longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep), 1034 (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst), 1035 (longlong_t)DVA_GET_VDEV(&vimep->vimep_dst), 1036 (longlong_t)DVA_GET_OFFSET(&vimep->vimep_dst), 1037 (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst), 1038 counts[i]); 1039 } 1040 (void) printf("\n"); 1041 1042 uint64_t obsolete_sm_object = vdev_obsolete_sm_object(vd); 1043 if (obsolete_sm_object != 0) { 1044 objset_t *mos = vd->vdev_spa->spa_meta_objset; 1045 (void) printf("obsolete space map object %llu:\n", 1046 (u_longlong_t)obsolete_sm_object); 1047 ASSERT(vd->vdev_obsolete_sm != NULL); 1048 ASSERT3U(space_map_object(vd->vdev_obsolete_sm), ==, 1049 obsolete_sm_object); 1050 dump_spacemap(mos, vd->vdev_obsolete_sm); 1051 (void) printf("\n"); 1052 } 1053 } 1054 1055 static void 1056 dump_metaslabs(spa_t *spa) 1057 { 1058 vdev_t *vd, *rvd = spa->spa_root_vdev; 1059 uint64_t m, c = 0, children = rvd->vdev_children; 1060 1061 (void) printf("\nMetaslabs:\n"); 1062 1063 if (!dump_opt['d'] && zopt_objects > 0) { 1064 c = zopt_object[0]; 1065 1066 if (c >= children) 1067 (void) fatal("bad vdev id: %llu", (u_longlong_t)c); 1068 1069 if (zopt_objects > 1) { 1070 vd = rvd->vdev_child[c]; 1071 print_vdev_metaslab_header(vd); 1072 1073 for (m = 1; m < zopt_objects; m++) { 1074 if (zopt_object[m] < vd->vdev_ms_count) 1075 dump_metaslab( 1076 vd->vdev_ms[zopt_object[m]]); 1077 else 1078 (void) fprintf(stderr, "bad metaslab " 1079 "number %llu\n", 1080 (u_longlong_t)zopt_object[m]); 1081 } 1082 (void) printf("\n"); 1083 return; 1084 } 1085 children = c + 1; 1086 } 1087 for (; c < children; c++) { 1088 vd = rvd->vdev_child[c]; 1089 print_vdev_metaslab_header(vd); 1090 1091 print_vdev_indirect(vd); 1092 1093 for (m = 0; m < vd->vdev_ms_count; m++) 1094 dump_metaslab(vd->vdev_ms[m]); 1095 (void) printf("\n"); 1096 } 1097 } 1098 1099 static void 1100 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) 1101 { 1102 const ddt_phys_t *ddp = dde->dde_phys; 1103 const ddt_key_t *ddk = &dde->dde_key; 1104 const char *types[4] = { "ditto", "single", "double", "triple" }; 1105 char blkbuf[BP_SPRINTF_LEN]; 1106 blkptr_t blk; 1107 1108 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 1109 if (ddp->ddp_phys_birth == 0) 1110 continue; 1111 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); 1112 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk); 1113 (void) printf("index %llx refcnt %llu %s %s\n", 1114 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, 1115 types[p], blkbuf); 1116 } 1117 } 1118 1119 static void 1120 dump_dedup_ratio(const ddt_stat_t *dds) 1121 { 1122 double rL, rP, rD, D, dedup, compress, copies; 1123 1124 if (dds->dds_blocks == 0) 1125 return; 1126 1127 rL = (double)dds->dds_ref_lsize; 1128 rP = (double)dds->dds_ref_psize; 1129 rD = (double)dds->dds_ref_dsize; 1130 D = (double)dds->dds_dsize; 1131 1132 dedup = rD / D; 1133 compress = rL / rP; 1134 copies = rD / rP; 1135 1136 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " 1137 "dedup * compress / copies = %.2f\n\n", 1138 dedup, compress, copies, dedup * compress / copies); 1139 } 1140 1141 static void 1142 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class) 1143 { 1144 char name[DDT_NAMELEN]; 1145 ddt_entry_t dde; 1146 uint64_t walk = 0; 1147 dmu_object_info_t doi; 1148 uint64_t count, dspace, mspace; 1149 int error; 1150 1151 error = ddt_object_info(ddt, type, class, &doi); 1152 1153 if (error == ENOENT) 1154 return; 1155 ASSERT(error == 0); 1156 1157 if ((count = ddt_object_count(ddt, type, class)) == 0) 1158 return; 1159 1160 dspace = doi.doi_physical_blocks_512 << 9; 1161 mspace = doi.doi_fill_count * doi.doi_data_block_size; 1162 1163 ddt_object_name(ddt, type, class, name); 1164 1165 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n", 1166 name, 1167 (u_longlong_t)count, 1168 (u_longlong_t)(dspace / count), 1169 (u_longlong_t)(mspace / count)); 1170 1171 if (dump_opt['D'] < 3) 1172 return; 1173 1174 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]); 1175 1176 if (dump_opt['D'] < 4) 1177 return; 1178 1179 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE) 1180 return; 1181 1182 (void) printf("%s contents:\n\n", name); 1183 1184 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0) 1185 dump_dde(ddt, &dde, walk); 1186 1187 ASSERT3U(error, ==, ENOENT); 1188 1189 (void) printf("\n"); 1190 } 1191 1192 static void 1193 dump_all_ddts(spa_t *spa) 1194 { 1195 ddt_histogram_t ddh_total; 1196 ddt_stat_t dds_total; 1197 1198 bzero(&ddh_total, sizeof (ddh_total)); 1199 bzero(&dds_total, sizeof (dds_total)); 1200 1201 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { 1202 ddt_t *ddt = spa->spa_ddt[c]; 1203 for (enum ddt_type type = 0; type < DDT_TYPES; type++) { 1204 for (enum ddt_class class = 0; class < DDT_CLASSES; 1205 class++) { 1206 dump_ddt(ddt, type, class); 1207 } 1208 } 1209 } 1210 1211 ddt_get_dedup_stats(spa, &dds_total); 1212 1213 if (dds_total.dds_blocks == 0) { 1214 (void) printf("All DDTs are empty\n"); 1215 return; 1216 } 1217 1218 (void) printf("\n"); 1219 1220 if (dump_opt['D'] > 1) { 1221 (void) printf("DDT histogram (aggregated over all DDTs):\n"); 1222 ddt_get_dedup_histogram(spa, &ddh_total); 1223 zpool_dump_ddt(&dds_total, &ddh_total); 1224 } 1225 1226 dump_dedup_ratio(&dds_total); 1227 } 1228 1229 static void 1230 dump_dtl_seg(void *arg, uint64_t start, uint64_t size) 1231 { 1232 char *prefix = arg; 1233 1234 (void) printf("%s [%llu,%llu) length %llu\n", 1235 prefix, 1236 (u_longlong_t)start, 1237 (u_longlong_t)(start + size), 1238 (u_longlong_t)(size)); 1239 } 1240 1241 static void 1242 dump_dtl(vdev_t *vd, int indent) 1243 { 1244 spa_t *spa = vd->vdev_spa; 1245 boolean_t required; 1246 const char *name[DTL_TYPES] = { "missing", "partial", "scrub", 1247 "outage" }; 1248 char prefix[256]; 1249 1250 spa_vdev_state_enter(spa, SCL_NONE); 1251 required = vdev_dtl_required(vd); 1252 (void) spa_vdev_state_exit(spa, NULL, 0); 1253 1254 if (indent == 0) 1255 (void) printf("\nDirty time logs:\n\n"); 1256 1257 (void) printf("\t%*s%s [%s]\n", indent, "", 1258 vd->vdev_path ? vd->vdev_path : 1259 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 1260 required ? "DTL-required" : "DTL-expendable"); 1261 1262 for (int t = 0; t < DTL_TYPES; t++) { 1263 range_tree_t *rt = vd->vdev_dtl[t]; 1264 if (range_tree_space(rt) == 0) 1265 continue; 1266 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 1267 indent + 2, "", name[t]); 1268 range_tree_walk(rt, dump_dtl_seg, prefix); 1269 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 1270 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm); 1271 } 1272 1273 for (unsigned c = 0; c < vd->vdev_children; c++) 1274 dump_dtl(vd->vdev_child[c], indent + 4); 1275 } 1276 1277 static void 1278 dump_history(spa_t *spa) 1279 { 1280 nvlist_t **events = NULL; 1281 uint64_t resid, len, off = 0; 1282 uint_t num = 0; 1283 int error; 1284 time_t tsec; 1285 struct tm t; 1286 char tbuf[30]; 1287 char internalstr[MAXPATHLEN]; 1288 1289 char *buf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 1290 do { 1291 len = SPA_MAXBLOCKSIZE; 1292 1293 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 1294 (void) fprintf(stderr, "Unable to read history: " 1295 "error %d\n", error); 1296 umem_free(buf, SPA_MAXBLOCKSIZE); 1297 return; 1298 } 1299 1300 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 1301 break; 1302 1303 off -= resid; 1304 } while (len != 0); 1305 umem_free(buf, SPA_MAXBLOCKSIZE); 1306 1307 (void) printf("\nHistory:\n"); 1308 for (unsigned i = 0; i < num; i++) { 1309 uint64_t time, txg, ievent; 1310 char *cmd, *intstr; 1311 boolean_t printed = B_FALSE; 1312 1313 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, 1314 &time) != 0) 1315 goto next; 1316 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, 1317 &cmd) != 0) { 1318 if (nvlist_lookup_uint64(events[i], 1319 ZPOOL_HIST_INT_EVENT, &ievent) != 0) 1320 goto next; 1321 verify(nvlist_lookup_uint64(events[i], 1322 ZPOOL_HIST_TXG, &txg) == 0); 1323 verify(nvlist_lookup_string(events[i], 1324 ZPOOL_HIST_INT_STR, &intstr) == 0); 1325 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 1326 goto next; 1327 1328 (void) snprintf(internalstr, 1329 sizeof (internalstr), 1330 "[internal %s txg:%ju] %s", 1331 zfs_history_event_names[ievent], (uintmax_t)txg, 1332 intstr); 1333 cmd = internalstr; 1334 } 1335 tsec = time; 1336 (void) localtime_r(&tsec, &t); 1337 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 1338 (void) printf("%s %s\n", tbuf, cmd); 1339 printed = B_TRUE; 1340 1341 next: 1342 if (dump_opt['h'] > 1) { 1343 if (!printed) 1344 (void) printf("unrecognized record:\n"); 1345 dump_nvlist(events[i], 2); 1346 } 1347 } 1348 } 1349 1350 /*ARGSUSED*/ 1351 static void 1352 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 1353 { 1354 } 1355 1356 static uint64_t 1357 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, 1358 const zbookmark_phys_t *zb) 1359 { 1360 if (dnp == NULL) { 1361 ASSERT(zb->zb_level < 0); 1362 if (zb->zb_object == 0) 1363 return (zb->zb_blkid); 1364 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 1365 } 1366 1367 ASSERT(zb->zb_level >= 0); 1368 1369 return ((zb->zb_blkid << 1370 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 1371 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 1372 } 1373 1374 static void 1375 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp) 1376 { 1377 const dva_t *dva = bp->blk_dva; 1378 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 1379 1380 if (dump_opt['b'] >= 6) { 1381 snprintf_blkptr(blkbuf, buflen, bp); 1382 return; 1383 } 1384 1385 if (BP_IS_EMBEDDED(bp)) { 1386 (void) sprintf(blkbuf, 1387 "EMBEDDED et=%u %llxL/%llxP B=%llu", 1388 (int)BPE_GET_ETYPE(bp), 1389 (u_longlong_t)BPE_GET_LSIZE(bp), 1390 (u_longlong_t)BPE_GET_PSIZE(bp), 1391 (u_longlong_t)bp->blk_birth); 1392 return; 1393 } 1394 1395 blkbuf[0] = '\0'; 1396 for (int i = 0; i < ndvas; i++) 1397 (void) snprintf(blkbuf + strlen(blkbuf), 1398 buflen - strlen(blkbuf), "%llu:%llx:%llx ", 1399 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 1400 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 1401 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 1402 1403 if (BP_IS_HOLE(bp)) { 1404 (void) snprintf(blkbuf + strlen(blkbuf), 1405 buflen - strlen(blkbuf), 1406 "%llxL B=%llu", 1407 (u_longlong_t)BP_GET_LSIZE(bp), 1408 (u_longlong_t)bp->blk_birth); 1409 } else { 1410 (void) snprintf(blkbuf + strlen(blkbuf), 1411 buflen - strlen(blkbuf), 1412 "%llxL/%llxP F=%llu B=%llu/%llu", 1413 (u_longlong_t)BP_GET_LSIZE(bp), 1414 (u_longlong_t)BP_GET_PSIZE(bp), 1415 (u_longlong_t)BP_GET_FILL(bp), 1416 (u_longlong_t)bp->blk_birth, 1417 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 1418 } 1419 } 1420 1421 static void 1422 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb, 1423 const dnode_phys_t *dnp) 1424 { 1425 char blkbuf[BP_SPRINTF_LEN]; 1426 int l; 1427 1428 if (!BP_IS_EMBEDDED(bp)) { 1429 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 1430 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 1431 } 1432 1433 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 1434 1435 ASSERT(zb->zb_level >= 0); 1436 1437 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 1438 if (l == zb->zb_level) { 1439 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 1440 } else { 1441 (void) printf(" "); 1442 } 1443 } 1444 1445 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1446 (void) printf("%s\n", blkbuf); 1447 } 1448 1449 static int 1450 visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 1451 blkptr_t *bp, const zbookmark_phys_t *zb) 1452 { 1453 int err = 0; 1454 1455 if (bp->blk_birth == 0) 1456 return (0); 1457 1458 print_indirect(bp, zb, dnp); 1459 1460 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) { 1461 arc_flags_t flags = ARC_FLAG_WAIT; 1462 int i; 1463 blkptr_t *cbp; 1464 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 1465 arc_buf_t *buf; 1466 uint64_t fill = 0; 1467 1468 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 1469 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 1470 if (err) 1471 return (err); 1472 ASSERT(buf->b_data); 1473 1474 /* recursively visit blocks below this */ 1475 cbp = buf->b_data; 1476 for (i = 0; i < epb; i++, cbp++) { 1477 zbookmark_phys_t czb; 1478 1479 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 1480 zb->zb_level - 1, 1481 zb->zb_blkid * epb + i); 1482 err = visit_indirect(spa, dnp, cbp, &czb); 1483 if (err) 1484 break; 1485 fill += BP_GET_FILL(cbp); 1486 } 1487 if (!err) 1488 ASSERT3U(fill, ==, BP_GET_FILL(bp)); 1489 arc_buf_destroy(buf, &buf); 1490 } 1491 1492 return (err); 1493 } 1494 1495 /*ARGSUSED*/ 1496 static void 1497 dump_indirect(dnode_t *dn) 1498 { 1499 dnode_phys_t *dnp = dn->dn_phys; 1500 int j; 1501 zbookmark_phys_t czb; 1502 1503 (void) printf("Indirect blocks:\n"); 1504 1505 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 1506 dn->dn_object, dnp->dn_nlevels - 1, 0); 1507 for (j = 0; j < dnp->dn_nblkptr; j++) { 1508 czb.zb_blkid = j; 1509 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 1510 &dnp->dn_blkptr[j], &czb); 1511 } 1512 1513 (void) printf("\n"); 1514 } 1515 1516 /*ARGSUSED*/ 1517 static void 1518 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 1519 { 1520 dsl_dir_phys_t *dd = data; 1521 time_t crtime; 1522 char nice[32]; 1523 1524 /* make sure nicenum has enough space */ 1525 CTASSERT(sizeof (nice) >= NN_NUMBUF_SZ); 1526 1527 if (dd == NULL) 1528 return; 1529 1530 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 1531 1532 crtime = dd->dd_creation_time; 1533 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1534 (void) printf("\t\thead_dataset_obj = %llu\n", 1535 (u_longlong_t)dd->dd_head_dataset_obj); 1536 (void) printf("\t\tparent_dir_obj = %llu\n", 1537 (u_longlong_t)dd->dd_parent_obj); 1538 (void) printf("\t\torigin_obj = %llu\n", 1539 (u_longlong_t)dd->dd_origin_obj); 1540 (void) printf("\t\tchild_dir_zapobj = %llu\n", 1541 (u_longlong_t)dd->dd_child_dir_zapobj); 1542 zdb_nicenum(dd->dd_used_bytes, nice, sizeof (nice)); 1543 (void) printf("\t\tused_bytes = %s\n", nice); 1544 zdb_nicenum(dd->dd_compressed_bytes, nice, sizeof (nice)); 1545 (void) printf("\t\tcompressed_bytes = %s\n", nice); 1546 zdb_nicenum(dd->dd_uncompressed_bytes, nice, sizeof (nice)); 1547 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 1548 zdb_nicenum(dd->dd_quota, nice, sizeof (nice)); 1549 (void) printf("\t\tquota = %s\n", nice); 1550 zdb_nicenum(dd->dd_reserved, nice, sizeof (nice)); 1551 (void) printf("\t\treserved = %s\n", nice); 1552 (void) printf("\t\tprops_zapobj = %llu\n", 1553 (u_longlong_t)dd->dd_props_zapobj); 1554 (void) printf("\t\tdeleg_zapobj = %llu\n", 1555 (u_longlong_t)dd->dd_deleg_zapobj); 1556 (void) printf("\t\tflags = %llx\n", 1557 (u_longlong_t)dd->dd_flags); 1558 1559 #define DO(which) \ 1560 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice, \ 1561 sizeof (nice)); \ 1562 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 1563 DO(HEAD); 1564 DO(SNAP); 1565 DO(CHILD); 1566 DO(CHILD_RSRV); 1567 DO(REFRSRV); 1568 #undef DO 1569 } 1570 1571 /*ARGSUSED*/ 1572 static void 1573 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 1574 { 1575 dsl_dataset_phys_t *ds = data; 1576 time_t crtime; 1577 char used[32], compressed[32], uncompressed[32], unique[32]; 1578 char blkbuf[BP_SPRINTF_LEN]; 1579 1580 /* make sure nicenum has enough space */ 1581 CTASSERT(sizeof (used) >= NN_NUMBUF_SZ); 1582 CTASSERT(sizeof (compressed) >= NN_NUMBUF_SZ); 1583 CTASSERT(sizeof (uncompressed) >= NN_NUMBUF_SZ); 1584 CTASSERT(sizeof (unique) >= NN_NUMBUF_SZ); 1585 1586 if (ds == NULL) 1587 return; 1588 1589 ASSERT(size == sizeof (*ds)); 1590 crtime = ds->ds_creation_time; 1591 zdb_nicenum(ds->ds_referenced_bytes, used, sizeof (used)); 1592 zdb_nicenum(ds->ds_compressed_bytes, compressed, sizeof (compressed)); 1593 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed, 1594 sizeof (uncompressed)); 1595 zdb_nicenum(ds->ds_unique_bytes, unique, sizeof (unique)); 1596 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp); 1597 1598 (void) printf("\t\tdir_obj = %llu\n", 1599 (u_longlong_t)ds->ds_dir_obj); 1600 (void) printf("\t\tprev_snap_obj = %llu\n", 1601 (u_longlong_t)ds->ds_prev_snap_obj); 1602 (void) printf("\t\tprev_snap_txg = %llu\n", 1603 (u_longlong_t)ds->ds_prev_snap_txg); 1604 (void) printf("\t\tnext_snap_obj = %llu\n", 1605 (u_longlong_t)ds->ds_next_snap_obj); 1606 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1607 (u_longlong_t)ds->ds_snapnames_zapobj); 1608 (void) printf("\t\tnum_children = %llu\n", 1609 (u_longlong_t)ds->ds_num_children); 1610 (void) printf("\t\tuserrefs_obj = %llu\n", 1611 (u_longlong_t)ds->ds_userrefs_obj); 1612 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1613 (void) printf("\t\tcreation_txg = %llu\n", 1614 (u_longlong_t)ds->ds_creation_txg); 1615 (void) printf("\t\tdeadlist_obj = %llu\n", 1616 (u_longlong_t)ds->ds_deadlist_obj); 1617 (void) printf("\t\tused_bytes = %s\n", used); 1618 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1619 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1620 (void) printf("\t\tunique = %s\n", unique); 1621 (void) printf("\t\tfsid_guid = %llu\n", 1622 (u_longlong_t)ds->ds_fsid_guid); 1623 (void) printf("\t\tguid = %llu\n", 1624 (u_longlong_t)ds->ds_guid); 1625 (void) printf("\t\tflags = %llx\n", 1626 (u_longlong_t)ds->ds_flags); 1627 (void) printf("\t\tnext_clones_obj = %llu\n", 1628 (u_longlong_t)ds->ds_next_clones_obj); 1629 (void) printf("\t\tprops_obj = %llu\n", 1630 (u_longlong_t)ds->ds_props_obj); 1631 (void) printf("\t\tbp = %s\n", blkbuf); 1632 } 1633 1634 /* ARGSUSED */ 1635 static int 1636 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1637 { 1638 char blkbuf[BP_SPRINTF_LEN]; 1639 1640 if (bp->blk_birth != 0) { 1641 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 1642 (void) printf("\t%s\n", blkbuf); 1643 } 1644 return (0); 1645 } 1646 1647 static void 1648 dump_bptree(objset_t *os, uint64_t obj, const char *name) 1649 { 1650 char bytes[32]; 1651 bptree_phys_t *bt; 1652 dmu_buf_t *db; 1653 1654 /* make sure nicenum has enough space */ 1655 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 1656 1657 if (dump_opt['d'] < 3) 1658 return; 1659 1660 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 1661 bt = db->db_data; 1662 zdb_nicenum(bt->bt_bytes, bytes, sizeof (bytes)); 1663 (void) printf("\n %s: %llu datasets, %s\n", 1664 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 1665 dmu_buf_rele(db, FTAG); 1666 1667 if (dump_opt['d'] < 5) 1668 return; 1669 1670 (void) printf("\n"); 1671 1672 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 1673 } 1674 1675 /* ARGSUSED */ 1676 static int 1677 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1678 { 1679 char blkbuf[BP_SPRINTF_LEN]; 1680 1681 ASSERT(bp->blk_birth != 0); 1682 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1683 (void) printf("\t%s\n", blkbuf); 1684 return (0); 1685 } 1686 1687 static void 1688 dump_full_bpobj(bpobj_t *bpo, const char *name, int indent) 1689 { 1690 char bytes[32]; 1691 char comp[32]; 1692 char uncomp[32]; 1693 1694 /* make sure nicenum has enough space */ 1695 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 1696 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ); 1697 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ); 1698 1699 if (dump_opt['d'] < 3) 1700 return; 1701 1702 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes, sizeof (bytes)); 1703 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1704 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp, sizeof (comp)); 1705 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp, sizeof (uncomp)); 1706 (void) printf(" %*s: object %llu, %llu local blkptrs, " 1707 "%llu subobjs in object %llu, %s (%s/%s comp)\n", 1708 indent * 8, name, 1709 (u_longlong_t)bpo->bpo_object, 1710 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1711 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 1712 (u_longlong_t)bpo->bpo_phys->bpo_subobjs, 1713 bytes, comp, uncomp); 1714 1715 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1716 uint64_t subobj; 1717 bpobj_t subbpo; 1718 int error; 1719 VERIFY0(dmu_read(bpo->bpo_os, 1720 bpo->bpo_phys->bpo_subobjs, 1721 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1722 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1723 if (error != 0) { 1724 (void) printf("ERROR %u while trying to open " 1725 "subobj id %llu\n", 1726 error, (u_longlong_t)subobj); 1727 continue; 1728 } 1729 dump_full_bpobj(&subbpo, "subobj", indent + 1); 1730 bpobj_close(&subbpo); 1731 } 1732 } else { 1733 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", 1734 indent * 8, name, 1735 (u_longlong_t)bpo->bpo_object, 1736 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1737 bytes); 1738 } 1739 1740 if (dump_opt['d'] < 5) 1741 return; 1742 1743 1744 if (indent == 0) { 1745 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 1746 (void) printf("\n"); 1747 } 1748 } 1749 1750 static void 1751 dump_deadlist(dsl_deadlist_t *dl) 1752 { 1753 dsl_deadlist_entry_t *dle; 1754 uint64_t unused; 1755 char bytes[32]; 1756 char comp[32]; 1757 char uncomp[32]; 1758 1759 /* make sure nicenum has enough space */ 1760 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 1761 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ); 1762 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ); 1763 1764 if (dump_opt['d'] < 3) 1765 return; 1766 1767 if (dl->dl_oldfmt) { 1768 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0); 1769 return; 1770 } 1771 1772 zdb_nicenum(dl->dl_phys->dl_used, bytes, sizeof (bytes)); 1773 zdb_nicenum(dl->dl_phys->dl_comp, comp, sizeof (comp)); 1774 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp, sizeof (uncomp)); 1775 (void) printf("\n Deadlist: %s (%s/%s comp)\n", 1776 bytes, comp, uncomp); 1777 1778 if (dump_opt['d'] < 4) 1779 return; 1780 1781 (void) printf("\n"); 1782 1783 /* force the tree to be loaded */ 1784 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); 1785 1786 for (dle = avl_first(&dl->dl_tree); dle; 1787 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1788 if (dump_opt['d'] >= 5) { 1789 char buf[128]; 1790 (void) snprintf(buf, sizeof (buf), 1791 "mintxg %llu -> obj %llu", 1792 (longlong_t)dle->dle_mintxg, 1793 (longlong_t)dle->dle_bpobj.bpo_object); 1794 1795 dump_full_bpobj(&dle->dle_bpobj, buf, 0); 1796 } else { 1797 (void) printf("mintxg %llu -> obj %llu\n", 1798 (longlong_t)dle->dle_mintxg, 1799 (longlong_t)dle->dle_bpobj.bpo_object); 1800 1801 } 1802 } 1803 } 1804 1805 static avl_tree_t idx_tree; 1806 static avl_tree_t domain_tree; 1807 static boolean_t fuid_table_loaded; 1808 static objset_t *sa_os = NULL; 1809 static sa_attr_type_t *sa_attr_table = NULL; 1810 1811 static int 1812 open_objset(const char *path, dmu_objset_type_t type, void *tag, objset_t **osp) 1813 { 1814 int err; 1815 uint64_t sa_attrs = 0; 1816 uint64_t version = 0; 1817 1818 VERIFY3P(sa_os, ==, NULL); 1819 err = dmu_objset_own(path, type, B_TRUE, tag, osp); 1820 if (err != 0) { 1821 (void) fprintf(stderr, "failed to own dataset '%s': %s\n", path, 1822 strerror(err)); 1823 return (err); 1824 } 1825 1826 if (dmu_objset_type(*osp) == DMU_OST_ZFS) { 1827 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZPL_VERSION_STR, 1828 8, 1, &version); 1829 if (version >= ZPL_VERSION_SA) { 1830 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 1831 8, 1, &sa_attrs); 1832 } 1833 err = sa_setup(*osp, sa_attrs, zfs_attr_table, ZPL_END, 1834 &sa_attr_table); 1835 if (err != 0) { 1836 (void) fprintf(stderr, "sa_setup failed: %s\n", 1837 strerror(err)); 1838 dmu_objset_disown(*osp, tag); 1839 *osp = NULL; 1840 } 1841 } 1842 sa_os = *osp; 1843 1844 return (0); 1845 } 1846 1847 static void 1848 close_objset(objset_t *os, void *tag) 1849 { 1850 VERIFY3P(os, ==, sa_os); 1851 if (os->os_sa != NULL) 1852 sa_tear_down(os); 1853 dmu_objset_disown(os, tag); 1854 sa_attr_table = NULL; 1855 sa_os = NULL; 1856 } 1857 1858 static void 1859 fuid_table_destroy() 1860 { 1861 if (fuid_table_loaded) { 1862 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 1863 fuid_table_loaded = B_FALSE; 1864 } 1865 } 1866 1867 /* 1868 * print uid or gid information. 1869 * For normal POSIX id just the id is printed in decimal format. 1870 * For CIFS files with FUID the fuid is printed in hex followed by 1871 * the domain-rid string. 1872 */ 1873 static void 1874 print_idstr(uint64_t id, const char *id_type) 1875 { 1876 if (FUID_INDEX(id)) { 1877 char *domain; 1878 1879 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 1880 (void) printf("\t%s %llx [%s-%d]\n", id_type, 1881 (u_longlong_t)id, domain, (int)FUID_RID(id)); 1882 } else { 1883 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 1884 } 1885 1886 } 1887 1888 static void 1889 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 1890 { 1891 uint32_t uid_idx, gid_idx; 1892 1893 uid_idx = FUID_INDEX(uid); 1894 gid_idx = FUID_INDEX(gid); 1895 1896 /* Load domain table, if not already loaded */ 1897 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 1898 uint64_t fuid_obj; 1899 1900 /* first find the fuid object. It lives in the master node */ 1901 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 1902 8, 1, &fuid_obj) == 0); 1903 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 1904 (void) zfs_fuid_table_load(os, fuid_obj, 1905 &idx_tree, &domain_tree); 1906 fuid_table_loaded = B_TRUE; 1907 } 1908 1909 print_idstr(uid, "uid"); 1910 print_idstr(gid, "gid"); 1911 } 1912 1913 /*ARGSUSED*/ 1914 static void 1915 dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 1916 { 1917 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 1918 sa_handle_t *hdl; 1919 uint64_t xattr, rdev, gen; 1920 uint64_t uid, gid, mode, fsize, parent, links; 1921 uint64_t pflags; 1922 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 1923 time_t z_crtime, z_atime, z_mtime, z_ctime; 1924 sa_bulk_attr_t bulk[12]; 1925 int idx = 0; 1926 int error; 1927 1928 VERIFY3P(os, ==, sa_os); 1929 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 1930 (void) printf("Failed to get handle for SA znode\n"); 1931 return; 1932 } 1933 1934 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 1935 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 1936 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 1937 &links, 8); 1938 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 1939 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 1940 &mode, 8); 1941 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 1942 NULL, &parent, 8); 1943 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 1944 &fsize, 8); 1945 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 1946 acctm, 16); 1947 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 1948 modtm, 16); 1949 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 1950 crtm, 16); 1951 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 1952 chgtm, 16); 1953 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 1954 &pflags, 8); 1955 1956 if (sa_bulk_lookup(hdl, bulk, idx)) { 1957 (void) sa_handle_destroy(hdl); 1958 return; 1959 } 1960 1961 z_crtime = (time_t)crtm[0]; 1962 z_atime = (time_t)acctm[0]; 1963 z_mtime = (time_t)modtm[0]; 1964 z_ctime = (time_t)chgtm[0]; 1965 1966 if (dump_opt['d'] > 4) { 1967 error = zfs_obj_to_path(os, object, path, sizeof (path)); 1968 if (error != 0) { 1969 (void) snprintf(path, sizeof (path), 1970 "\?\?\?<object#%llu>", (u_longlong_t)object); 1971 } 1972 (void) printf("\tpath %s\n", path); 1973 } 1974 dump_uidgid(os, uid, gid); 1975 (void) printf("\tatime %s", ctime(&z_atime)); 1976 (void) printf("\tmtime %s", ctime(&z_mtime)); 1977 (void) printf("\tctime %s", ctime(&z_ctime)); 1978 (void) printf("\tcrtime %s", ctime(&z_crtime)); 1979 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 1980 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 1981 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 1982 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 1983 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 1984 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 1985 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 1986 sizeof (uint64_t)) == 0) 1987 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 1988 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 1989 sizeof (uint64_t)) == 0) 1990 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 1991 sa_handle_destroy(hdl); 1992 } 1993 1994 /*ARGSUSED*/ 1995 static void 1996 dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 1997 { 1998 } 1999 2000 /*ARGSUSED*/ 2001 static void 2002 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 2003 { 2004 } 2005 2006 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 2007 dump_none, /* unallocated */ 2008 dump_zap, /* object directory */ 2009 dump_uint64, /* object array */ 2010 dump_none, /* packed nvlist */ 2011 dump_packed_nvlist, /* packed nvlist size */ 2012 dump_none, /* bpobj */ 2013 dump_bpobj, /* bpobj header */ 2014 dump_none, /* SPA space map header */ 2015 dump_none, /* SPA space map */ 2016 dump_none, /* ZIL intent log */ 2017 dump_dnode, /* DMU dnode */ 2018 dump_dmu_objset, /* DMU objset */ 2019 dump_dsl_dir, /* DSL directory */ 2020 dump_zap, /* DSL directory child map */ 2021 dump_zap, /* DSL dataset snap map */ 2022 dump_zap, /* DSL props */ 2023 dump_dsl_dataset, /* DSL dataset */ 2024 dump_znode, /* ZFS znode */ 2025 dump_acl, /* ZFS V0 ACL */ 2026 dump_uint8, /* ZFS plain file */ 2027 dump_zpldir, /* ZFS directory */ 2028 dump_zap, /* ZFS master node */ 2029 dump_zap, /* ZFS delete queue */ 2030 dump_uint8, /* zvol object */ 2031 dump_zap, /* zvol prop */ 2032 dump_uint8, /* other uint8[] */ 2033 dump_uint64, /* other uint64[] */ 2034 dump_zap, /* other ZAP */ 2035 dump_zap, /* persistent error log */ 2036 dump_uint8, /* SPA history */ 2037 dump_history_offsets, /* SPA history offsets */ 2038 dump_zap, /* Pool properties */ 2039 dump_zap, /* DSL permissions */ 2040 dump_acl, /* ZFS ACL */ 2041 dump_uint8, /* ZFS SYSACL */ 2042 dump_none, /* FUID nvlist */ 2043 dump_packed_nvlist, /* FUID nvlist size */ 2044 dump_zap, /* DSL dataset next clones */ 2045 dump_zap, /* DSL scrub queue */ 2046 dump_zap, /* ZFS user/group used */ 2047 dump_zap, /* ZFS user/group quota */ 2048 dump_zap, /* snapshot refcount tags */ 2049 dump_ddt_zap, /* DDT ZAP object */ 2050 dump_zap, /* DDT statistics */ 2051 dump_znode, /* SA object */ 2052 dump_zap, /* SA Master Node */ 2053 dump_sa_attrs, /* SA attribute registration */ 2054 dump_sa_layouts, /* SA attribute layouts */ 2055 dump_zap, /* DSL scrub translations */ 2056 dump_none, /* fake dedup BP */ 2057 dump_zap, /* deadlist */ 2058 dump_none, /* deadlist hdr */ 2059 dump_zap, /* dsl clones */ 2060 dump_bpobj_subobjs, /* bpobj subobjs */ 2061 dump_unknown, /* Unknown type, must be last */ 2062 }; 2063 2064 static void 2065 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 2066 { 2067 dmu_buf_t *db = NULL; 2068 dmu_object_info_t doi; 2069 dnode_t *dn; 2070 void *bonus = NULL; 2071 size_t bsize = 0; 2072 char iblk[32], dblk[32], lsize[32], asize[32], fill[32]; 2073 char bonus_size[32]; 2074 char aux[50]; 2075 int error; 2076 2077 /* make sure nicenum has enough space */ 2078 CTASSERT(sizeof (iblk) >= NN_NUMBUF_SZ); 2079 CTASSERT(sizeof (dblk) >= NN_NUMBUF_SZ); 2080 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ); 2081 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ); 2082 CTASSERT(sizeof (bonus_size) >= NN_NUMBUF_SZ); 2083 2084 if (*print_header) { 2085 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n", 2086 "Object", "lvl", "iblk", "dblk", "dsize", "lsize", 2087 "%full", "type"); 2088 *print_header = 0; 2089 } 2090 2091 if (object == 0) { 2092 dn = DMU_META_DNODE(os); 2093 } else { 2094 error = dmu_bonus_hold(os, object, FTAG, &db); 2095 if (error) 2096 fatal("dmu_bonus_hold(%llu) failed, errno %u", 2097 object, error); 2098 bonus = db->db_data; 2099 bsize = db->db_size; 2100 dn = DB_DNODE((dmu_buf_impl_t *)db); 2101 } 2102 dmu_object_info_from_dnode(dn, &doi); 2103 2104 zdb_nicenum(doi.doi_metadata_block_size, iblk, sizeof (iblk)); 2105 zdb_nicenum(doi.doi_data_block_size, dblk, sizeof (dblk)); 2106 zdb_nicenum(doi.doi_max_offset, lsize, sizeof (lsize)); 2107 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize, sizeof (asize)); 2108 zdb_nicenum(doi.doi_bonus_size, bonus_size, sizeof (bonus_size)); 2109 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 2110 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 2111 doi.doi_max_offset); 2112 2113 aux[0] = '\0'; 2114 2115 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 2116 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 2117 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 2118 } 2119 2120 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 2121 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 2122 ZDB_COMPRESS_NAME(doi.doi_compress)); 2123 } 2124 2125 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n", 2126 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 2127 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 2128 2129 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 2130 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n", 2131 "", "", "", "", "", bonus_size, "bonus", 2132 ZDB_OT_NAME(doi.doi_bonus_type)); 2133 } 2134 2135 if (verbosity >= 4) { 2136 (void) printf("\tdnode flags: %s%s%s\n", 2137 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 2138 "USED_BYTES " : "", 2139 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 2140 "USERUSED_ACCOUNTED " : "", 2141 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 2142 "SPILL_BLKPTR" : ""); 2143 (void) printf("\tdnode maxblkid: %llu\n", 2144 (longlong_t)dn->dn_phys->dn_maxblkid); 2145 2146 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, 2147 bonus, bsize); 2148 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); 2149 *print_header = 1; 2150 } 2151 2152 if (verbosity >= 5) 2153 dump_indirect(dn); 2154 2155 if (verbosity >= 5) { 2156 /* 2157 * Report the list of segments that comprise the object. 2158 */ 2159 uint64_t start = 0; 2160 uint64_t end; 2161 uint64_t blkfill = 1; 2162 int minlvl = 1; 2163 2164 if (dn->dn_type == DMU_OT_DNODE) { 2165 minlvl = 0; 2166 blkfill = DNODES_PER_BLOCK; 2167 } 2168 2169 for (;;) { 2170 char segsize[32]; 2171 /* make sure nicenum has enough space */ 2172 CTASSERT(sizeof (segsize) >= NN_NUMBUF_SZ); 2173 error = dnode_next_offset(dn, 2174 0, &start, minlvl, blkfill, 0); 2175 if (error) 2176 break; 2177 end = start; 2178 error = dnode_next_offset(dn, 2179 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 2180 zdb_nicenum(end - start, segsize, sizeof (segsize)); 2181 (void) printf("\t\tsegment [%016llx, %016llx)" 2182 " size %5s\n", (u_longlong_t)start, 2183 (u_longlong_t)end, segsize); 2184 if (error) 2185 break; 2186 start = end; 2187 } 2188 } 2189 2190 if (db != NULL) 2191 dmu_buf_rele(db, FTAG); 2192 } 2193 2194 static const char *objset_types[DMU_OST_NUMTYPES] = { 2195 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 2196 2197 static void 2198 dump_dir(objset_t *os) 2199 { 2200 dmu_objset_stats_t dds; 2201 uint64_t object, object_count; 2202 uint64_t refdbytes, usedobjs, scratch; 2203 char numbuf[32]; 2204 char blkbuf[BP_SPRINTF_LEN + 20]; 2205 char osname[ZFS_MAX_DATASET_NAME_LEN]; 2206 const char *type = "UNKNOWN"; 2207 int verbosity = dump_opt['d']; 2208 int print_header = 1; 2209 unsigned i; 2210 int error; 2211 2212 /* make sure nicenum has enough space */ 2213 CTASSERT(sizeof (numbuf) >= NN_NUMBUF_SZ); 2214 2215 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 2216 dmu_objset_fast_stat(os, &dds); 2217 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 2218 2219 if (dds.dds_type < DMU_OST_NUMTYPES) 2220 type = objset_types[dds.dds_type]; 2221 2222 if (dds.dds_type == DMU_OST_META) { 2223 dds.dds_creation_txg = TXG_INITIAL; 2224 usedobjs = BP_GET_FILL(os->os_rootbp); 2225 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)-> 2226 dd_used_bytes; 2227 } else { 2228 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 2229 } 2230 2231 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp)); 2232 2233 zdb_nicenum(refdbytes, numbuf, sizeof (numbuf)); 2234 2235 if (verbosity >= 4) { 2236 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp "); 2237 (void) snprintf_blkptr(blkbuf + strlen(blkbuf), 2238 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp); 2239 } else { 2240 blkbuf[0] = '\0'; 2241 } 2242 2243 dmu_objset_name(os, osname); 2244 2245 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 2246 "%s, %llu objects%s\n", 2247 osname, type, (u_longlong_t)dmu_objset_id(os), 2248 (u_longlong_t)dds.dds_creation_txg, 2249 numbuf, (u_longlong_t)usedobjs, blkbuf); 2250 2251 if (zopt_objects != 0) { 2252 for (i = 0; i < zopt_objects; i++) 2253 dump_object(os, zopt_object[i], verbosity, 2254 &print_header); 2255 (void) printf("\n"); 2256 return; 2257 } 2258 2259 if (dump_opt['i'] != 0 || verbosity >= 2) 2260 dump_intent_log(dmu_objset_zil(os)); 2261 2262 if (dmu_objset_ds(os) != NULL) { 2263 dsl_dataset_t *ds = dmu_objset_ds(os); 2264 dump_deadlist(&ds->ds_deadlist); 2265 2266 if (dsl_dataset_remap_deadlist_exists(ds)) { 2267 (void) printf("ds_remap_deadlist:\n"); 2268 dump_deadlist(&ds->ds_remap_deadlist); 2269 } 2270 } 2271 2272 if (verbosity < 2) 2273 return; 2274 2275 if (BP_IS_HOLE(os->os_rootbp)) 2276 return; 2277 2278 dump_object(os, 0, verbosity, &print_header); 2279 object_count = 0; 2280 if (DMU_USERUSED_DNODE(os) != NULL && 2281 DMU_USERUSED_DNODE(os)->dn_type != 0) { 2282 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 2283 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 2284 } 2285 2286 object = 0; 2287 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 2288 dump_object(os, object, verbosity, &print_header); 2289 object_count++; 2290 } 2291 2292 ASSERT3U(object_count, ==, usedobjs); 2293 2294 (void) printf("\n"); 2295 2296 if (error != ESRCH) { 2297 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 2298 abort(); 2299 } 2300 } 2301 2302 static void 2303 dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 2304 { 2305 time_t timestamp = ub->ub_timestamp; 2306 2307 (void) printf("%s", header ? header : ""); 2308 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 2309 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 2310 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 2311 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 2312 (void) printf("\ttimestamp = %llu UTC = %s", 2313 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 2314 if (dump_opt['u'] >= 3) { 2315 char blkbuf[BP_SPRINTF_LEN]; 2316 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp); 2317 (void) printf("\trootbp = %s\n", blkbuf); 2318 } 2319 (void) printf("\tcheckpoint_txg = %llu\n", 2320 (u_longlong_t)ub->ub_checkpoint_txg); 2321 (void) printf("%s", footer ? footer : ""); 2322 } 2323 2324 static void 2325 dump_config(spa_t *spa) 2326 { 2327 dmu_buf_t *db; 2328 size_t nvsize = 0; 2329 int error = 0; 2330 2331 2332 error = dmu_bonus_hold(spa->spa_meta_objset, 2333 spa->spa_config_object, FTAG, &db); 2334 2335 if (error == 0) { 2336 nvsize = *(uint64_t *)db->db_data; 2337 dmu_buf_rele(db, FTAG); 2338 2339 (void) printf("\nMOS Configuration:\n"); 2340 dump_packed_nvlist(spa->spa_meta_objset, 2341 spa->spa_config_object, (void *)&nvsize, 1); 2342 } else { 2343 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 2344 (u_longlong_t)spa->spa_config_object, error); 2345 } 2346 } 2347 2348 static void 2349 dump_cachefile(const char *cachefile) 2350 { 2351 int fd; 2352 struct stat64 statbuf; 2353 char *buf; 2354 nvlist_t *config; 2355 2356 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 2357 (void) printf("cannot open '%s': %s\n", cachefile, 2358 strerror(errno)); 2359 exit(1); 2360 } 2361 2362 if (fstat64(fd, &statbuf) != 0) { 2363 (void) printf("failed to stat '%s': %s\n", cachefile, 2364 strerror(errno)); 2365 exit(1); 2366 } 2367 2368 if ((buf = malloc(statbuf.st_size)) == NULL) { 2369 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 2370 (u_longlong_t)statbuf.st_size); 2371 exit(1); 2372 } 2373 2374 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 2375 (void) fprintf(stderr, "failed to read %llu bytes\n", 2376 (u_longlong_t)statbuf.st_size); 2377 exit(1); 2378 } 2379 2380 (void) close(fd); 2381 2382 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 2383 (void) fprintf(stderr, "failed to unpack nvlist\n"); 2384 exit(1); 2385 } 2386 2387 free(buf); 2388 2389 dump_nvlist(config, 0); 2390 2391 nvlist_free(config); 2392 } 2393 2394 #define ZDB_MAX_UB_HEADER_SIZE 32 2395 2396 static void 2397 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) 2398 { 2399 vdev_t vd; 2400 vdev_t *vdp = &vd; 2401 char header[ZDB_MAX_UB_HEADER_SIZE]; 2402 2403 vd.vdev_ashift = ashift; 2404 vdp->vdev_top = vdp; 2405 2406 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { 2407 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); 2408 uberblock_t *ub = (void *)((char *)lbl + uoff); 2409 2410 if (uberblock_verify(ub)) 2411 continue; 2412 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 2413 "Uberblock[%d]\n", i); 2414 dump_uberblock(ub, header, ""); 2415 } 2416 } 2417 2418 static char curpath[PATH_MAX]; 2419 2420 /* 2421 * Iterate through the path components, recursively passing 2422 * current one's obj and remaining path until we find the obj 2423 * for the last one. 2424 */ 2425 static int 2426 dump_path_impl(objset_t *os, uint64_t obj, char *name) 2427 { 2428 int err; 2429 int header = 1; 2430 uint64_t child_obj; 2431 char *s; 2432 dmu_buf_t *db; 2433 dmu_object_info_t doi; 2434 2435 if ((s = strchr(name, '/')) != NULL) 2436 *s = '\0'; 2437 err = zap_lookup(os, obj, name, 8, 1, &child_obj); 2438 2439 (void) strlcat(curpath, name, sizeof (curpath)); 2440 2441 if (err != 0) { 2442 (void) fprintf(stderr, "failed to lookup %s: %s\n", 2443 curpath, strerror(err)); 2444 return (err); 2445 } 2446 2447 child_obj = ZFS_DIRENT_OBJ(child_obj); 2448 err = sa_buf_hold(os, child_obj, FTAG, &db); 2449 if (err != 0) { 2450 (void) fprintf(stderr, 2451 "failed to get SA dbuf for obj %llu: %s\n", 2452 (u_longlong_t)child_obj, strerror(err)); 2453 return (EINVAL); 2454 } 2455 dmu_object_info_from_db(db, &doi); 2456 sa_buf_rele(db, FTAG); 2457 2458 if (doi.doi_bonus_type != DMU_OT_SA && 2459 doi.doi_bonus_type != DMU_OT_ZNODE) { 2460 (void) fprintf(stderr, "invalid bonus type %d for obj %llu\n", 2461 doi.doi_bonus_type, (u_longlong_t)child_obj); 2462 return (EINVAL); 2463 } 2464 2465 if (dump_opt['v'] > 6) { 2466 (void) printf("obj=%llu %s type=%d bonustype=%d\n", 2467 (u_longlong_t)child_obj, curpath, doi.doi_type, 2468 doi.doi_bonus_type); 2469 } 2470 2471 (void) strlcat(curpath, "/", sizeof (curpath)); 2472 2473 switch (doi.doi_type) { 2474 case DMU_OT_DIRECTORY_CONTENTS: 2475 if (s != NULL && *(s + 1) != '\0') 2476 return (dump_path_impl(os, child_obj, s + 1)); 2477 /*FALLTHROUGH*/ 2478 case DMU_OT_PLAIN_FILE_CONTENTS: 2479 dump_object(os, child_obj, dump_opt['v'], &header); 2480 return (0); 2481 default: 2482 (void) fprintf(stderr, "object %llu has non-file/directory " 2483 "type %d\n", (u_longlong_t)obj, doi.doi_type); 2484 break; 2485 } 2486 2487 return (EINVAL); 2488 } 2489 2490 /* 2491 * Dump the blocks for the object specified by path inside the dataset. 2492 */ 2493 static int 2494 dump_path(char *ds, char *path) 2495 { 2496 int err; 2497 objset_t *os; 2498 uint64_t root_obj; 2499 2500 err = open_objset(ds, DMU_OST_ZFS, FTAG, &os); 2501 if (err != 0) 2502 return (err); 2503 2504 err = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1, &root_obj); 2505 if (err != 0) { 2506 (void) fprintf(stderr, "can't lookup root znode: %s\n", 2507 strerror(err)); 2508 dmu_objset_disown(os, FTAG); 2509 return (EINVAL); 2510 } 2511 2512 (void) snprintf(curpath, sizeof (curpath), "dataset=%s path=/", ds); 2513 2514 err = dump_path_impl(os, root_obj, path); 2515 2516 close_objset(os, FTAG); 2517 return (err); 2518 } 2519 2520 static int 2521 dump_label(const char *dev) 2522 { 2523 int fd; 2524 vdev_label_t label; 2525 char path[MAXPATHLEN]; 2526 char *buf = label.vl_vdev_phys.vp_nvlist; 2527 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 2528 struct stat64 statbuf; 2529 uint64_t psize, ashift; 2530 boolean_t label_found = B_FALSE; 2531 2532 (void) strlcpy(path, dev, sizeof (path)); 2533 if (dev[0] == '/') { 2534 if (strncmp(dev, ZFS_DISK_ROOTD, 2535 strlen(ZFS_DISK_ROOTD)) == 0) { 2536 (void) snprintf(path, sizeof (path), "%s%s", 2537 ZFS_RDISK_ROOTD, dev + strlen(ZFS_DISK_ROOTD)); 2538 } 2539 } else if (stat64(path, &statbuf) != 0) { 2540 char *s; 2541 2542 (void) snprintf(path, sizeof (path), "%s%s", ZFS_RDISK_ROOTD, 2543 dev); 2544 if (((s = strrchr(dev, 's')) == NULL && 2545 (s = strchr(dev, 'p')) == NULL) || 2546 !isdigit(*(s + 1))) 2547 (void) strlcat(path, "s0", sizeof (path)); 2548 } 2549 2550 if ((fd = open64(path, O_RDONLY)) < 0) { 2551 (void) fprintf(stderr, "cannot open '%s': %s\n", path, 2552 strerror(errno)); 2553 exit(1); 2554 } 2555 2556 if (fstat64(fd, &statbuf) != 0) { 2557 (void) fprintf(stderr, "failed to stat '%s': %s\n", path, 2558 strerror(errno)); 2559 (void) close(fd); 2560 exit(1); 2561 } 2562 2563 if (S_ISBLK(statbuf.st_mode)) { 2564 (void) fprintf(stderr, 2565 "cannot use '%s': character device required\n", path); 2566 (void) close(fd); 2567 exit(1); 2568 } 2569 2570 psize = statbuf.st_size; 2571 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 2572 2573 for (int l = 0; l < VDEV_LABELS; l++) { 2574 nvlist_t *config = NULL; 2575 2576 if (!dump_opt['q']) { 2577 (void) printf("------------------------------------\n"); 2578 (void) printf("LABEL %d\n", l); 2579 (void) printf("------------------------------------\n"); 2580 } 2581 2582 if (pread64(fd, &label, sizeof (label), 2583 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 2584 if (!dump_opt['q']) 2585 (void) printf("failed to read label %d\n", l); 2586 continue; 2587 } 2588 2589 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 2590 if (!dump_opt['q']) 2591 (void) printf("failed to unpack label %d\n", l); 2592 ashift = SPA_MINBLOCKSHIFT; 2593 } else { 2594 nvlist_t *vdev_tree = NULL; 2595 2596 if (!dump_opt['q']) 2597 dump_nvlist(config, 4); 2598 if ((nvlist_lookup_nvlist(config, 2599 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 2600 (nvlist_lookup_uint64(vdev_tree, 2601 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 2602 ashift = SPA_MINBLOCKSHIFT; 2603 nvlist_free(config); 2604 label_found = B_TRUE; 2605 } 2606 if (dump_opt['u']) 2607 dump_label_uberblocks(&label, ashift); 2608 } 2609 2610 (void) close(fd); 2611 2612 return (label_found ? 0 : 2); 2613 } 2614 2615 static uint64_t dataset_feature_count[SPA_FEATURES]; 2616 static uint64_t remap_deadlist_count = 0; 2617 2618 /*ARGSUSED*/ 2619 static int 2620 dump_one_dir(const char *dsname, void *arg) 2621 { 2622 int error; 2623 objset_t *os; 2624 2625 error = open_objset(dsname, DMU_OST_ANY, FTAG, &os); 2626 if (error != 0) 2627 return (0); 2628 2629 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) { 2630 if (!dmu_objset_ds(os)->ds_feature_inuse[f]) 2631 continue; 2632 ASSERT(spa_feature_table[f].fi_flags & 2633 ZFEATURE_FLAG_PER_DATASET); 2634 dataset_feature_count[f]++; 2635 } 2636 2637 if (dsl_dataset_remap_deadlist_exists(dmu_objset_ds(os))) { 2638 remap_deadlist_count++; 2639 } 2640 2641 dump_dir(os); 2642 close_objset(os, FTAG); 2643 fuid_table_destroy(); 2644 return (0); 2645 } 2646 2647 /* 2648 * Block statistics. 2649 */ 2650 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2) 2651 typedef struct zdb_blkstats { 2652 uint64_t zb_asize; 2653 uint64_t zb_lsize; 2654 uint64_t zb_psize; 2655 uint64_t zb_count; 2656 uint64_t zb_gangs; 2657 uint64_t zb_ditto_samevdev; 2658 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 2659 } zdb_blkstats_t; 2660 2661 /* 2662 * Extended object types to report deferred frees and dedup auto-ditto blocks. 2663 */ 2664 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 2665 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 2666 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 2667 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 2668 2669 static const char *zdb_ot_extname[] = { 2670 "deferred free", 2671 "dedup ditto", 2672 "other", 2673 "Total", 2674 }; 2675 2676 #define ZB_TOTAL DN_MAX_LEVELS 2677 2678 typedef struct zdb_cb { 2679 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 2680 uint64_t zcb_removing_size; 2681 uint64_t zcb_checkpoint_size; 2682 uint64_t zcb_dedup_asize; 2683 uint64_t zcb_dedup_blocks; 2684 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES]; 2685 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES] 2686 [BPE_PAYLOAD_SIZE]; 2687 uint64_t zcb_start; 2688 hrtime_t zcb_lastprint; 2689 uint64_t zcb_totalasize; 2690 uint64_t zcb_errors[256]; 2691 int zcb_readfails; 2692 int zcb_haderrors; 2693 spa_t *zcb_spa; 2694 uint32_t **zcb_vd_obsolete_counts; 2695 } zdb_cb_t; 2696 2697 static void 2698 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 2699 dmu_object_type_t type) 2700 { 2701 uint64_t refcnt = 0; 2702 2703 ASSERT(type < ZDB_OT_TOTAL); 2704 2705 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 2706 return; 2707 2708 for (int i = 0; i < 4; i++) { 2709 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 2710 int t = (i & 1) ? type : ZDB_OT_TOTAL; 2711 int equal; 2712 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 2713 2714 zb->zb_asize += BP_GET_ASIZE(bp); 2715 zb->zb_lsize += BP_GET_LSIZE(bp); 2716 zb->zb_psize += BP_GET_PSIZE(bp); 2717 zb->zb_count++; 2718 2719 /* 2720 * The histogram is only big enough to record blocks up to 2721 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last, 2722 * "other", bucket. 2723 */ 2724 unsigned idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT; 2725 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1); 2726 zb->zb_psize_histogram[idx]++; 2727 2728 zb->zb_gangs += BP_COUNT_GANG(bp); 2729 2730 switch (BP_GET_NDVAS(bp)) { 2731 case 2: 2732 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 2733 DVA_GET_VDEV(&bp->blk_dva[1])) 2734 zb->zb_ditto_samevdev++; 2735 break; 2736 case 3: 2737 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == 2738 DVA_GET_VDEV(&bp->blk_dva[1])) + 2739 (DVA_GET_VDEV(&bp->blk_dva[0]) == 2740 DVA_GET_VDEV(&bp->blk_dva[2])) + 2741 (DVA_GET_VDEV(&bp->blk_dva[1]) == 2742 DVA_GET_VDEV(&bp->blk_dva[2])); 2743 if (equal != 0) 2744 zb->zb_ditto_samevdev++; 2745 break; 2746 } 2747 2748 } 2749 2750 if (BP_IS_EMBEDDED(bp)) { 2751 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++; 2752 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)] 2753 [BPE_GET_PSIZE(bp)]++; 2754 return; 2755 } 2756 2757 if (dump_opt['L']) 2758 return; 2759 2760 if (BP_GET_DEDUP(bp)) { 2761 ddt_t *ddt; 2762 ddt_entry_t *dde; 2763 2764 ddt = ddt_select(zcb->zcb_spa, bp); 2765 ddt_enter(ddt); 2766 dde = ddt_lookup(ddt, bp, B_FALSE); 2767 2768 if (dde == NULL) { 2769 refcnt = 0; 2770 } else { 2771 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 2772 ddt_phys_decref(ddp); 2773 refcnt = ddp->ddp_refcnt; 2774 if (ddt_phys_total_refcnt(dde) == 0) 2775 ddt_remove(ddt, dde); 2776 } 2777 ddt_exit(ddt); 2778 } 2779 2780 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 2781 refcnt ? 0 : spa_min_claim_txg(zcb->zcb_spa), 2782 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 2783 } 2784 2785 static void 2786 zdb_blkptr_done(zio_t *zio) 2787 { 2788 spa_t *spa = zio->io_spa; 2789 blkptr_t *bp = zio->io_bp; 2790 int ioerr = zio->io_error; 2791 zdb_cb_t *zcb = zio->io_private; 2792 zbookmark_phys_t *zb = &zio->io_bookmark; 2793 2794 abd_free(zio->io_abd); 2795 2796 mutex_enter(&spa->spa_scrub_lock); 2797 spa->spa_scrub_inflight--; 2798 cv_broadcast(&spa->spa_scrub_io_cv); 2799 2800 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 2801 char blkbuf[BP_SPRINTF_LEN]; 2802 2803 zcb->zcb_haderrors = 1; 2804 zcb->zcb_errors[ioerr]++; 2805 2806 if (dump_opt['b'] >= 2) 2807 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2808 else 2809 blkbuf[0] = '\0'; 2810 2811 (void) printf("zdb_blkptr_cb: " 2812 "Got error %d reading " 2813 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 2814 ioerr, 2815 (u_longlong_t)zb->zb_objset, 2816 (u_longlong_t)zb->zb_object, 2817 (u_longlong_t)zb->zb_level, 2818 (u_longlong_t)zb->zb_blkid, 2819 blkbuf); 2820 } 2821 mutex_exit(&spa->spa_scrub_lock); 2822 } 2823 2824 static int 2825 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2826 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 2827 { 2828 zdb_cb_t *zcb = arg; 2829 dmu_object_type_t type; 2830 boolean_t is_metadata; 2831 2832 if (bp == NULL) 2833 return (0); 2834 2835 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) { 2836 char blkbuf[BP_SPRINTF_LEN]; 2837 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2838 (void) printf("objset %llu object %llu " 2839 "level %lld offset 0x%llx %s\n", 2840 (u_longlong_t)zb->zb_objset, 2841 (u_longlong_t)zb->zb_object, 2842 (longlong_t)zb->zb_level, 2843 (u_longlong_t)blkid2offset(dnp, bp, zb), 2844 blkbuf); 2845 } 2846 2847 if (BP_IS_HOLE(bp)) 2848 return (0); 2849 2850 type = BP_GET_TYPE(bp); 2851 2852 zdb_count_block(zcb, zilog, bp, 2853 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 2854 2855 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 2856 2857 if (!BP_IS_EMBEDDED(bp) && 2858 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) { 2859 size_t size = BP_GET_PSIZE(bp); 2860 abd_t *abd = abd_alloc(size, B_FALSE); 2861 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 2862 2863 /* If it's an intent log block, failure is expected. */ 2864 if (zb->zb_level == ZB_ZIL_LEVEL) 2865 flags |= ZIO_FLAG_SPECULATIVE; 2866 2867 mutex_enter(&spa->spa_scrub_lock); 2868 while (spa->spa_scrub_inflight > max_inflight) 2869 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 2870 spa->spa_scrub_inflight++; 2871 mutex_exit(&spa->spa_scrub_lock); 2872 2873 zio_nowait(zio_read(NULL, spa, bp, abd, size, 2874 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 2875 } 2876 2877 zcb->zcb_readfails = 0; 2878 2879 /* only call gethrtime() every 100 blocks */ 2880 static int iters; 2881 if (++iters > 100) 2882 iters = 0; 2883 else 2884 return (0); 2885 2886 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) { 2887 uint64_t now = gethrtime(); 2888 char buf[10]; 2889 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 2890 int kb_per_sec = 2891 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 2892 int sec_remaining = 2893 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 2894 2895 /* make sure nicenum has enough space */ 2896 CTASSERT(sizeof (buf) >= NN_NUMBUF_SZ); 2897 2898 zfs_nicenum(bytes, buf, sizeof (buf)); 2899 (void) fprintf(stderr, 2900 "\r%5s completed (%4dMB/s) " 2901 "estimated time remaining: %uhr %02umin %02usec ", 2902 buf, kb_per_sec / 1024, 2903 sec_remaining / 60 / 60, 2904 sec_remaining / 60 % 60, 2905 sec_remaining % 60); 2906 2907 zcb->zcb_lastprint = now; 2908 } 2909 2910 return (0); 2911 } 2912 2913 static void 2914 zdb_leak(void *arg, uint64_t start, uint64_t size) 2915 { 2916 vdev_t *vd = arg; 2917 2918 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 2919 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 2920 } 2921 2922 static metaslab_ops_t zdb_metaslab_ops = { 2923 NULL /* alloc */ 2924 }; 2925 2926 static void 2927 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 2928 { 2929 ddt_bookmark_t ddb; 2930 ddt_entry_t dde; 2931 int error; 2932 2933 bzero(&ddb, sizeof (ddb)); 2934 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 2935 blkptr_t blk; 2936 ddt_phys_t *ddp = dde.dde_phys; 2937 2938 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 2939 return; 2940 2941 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 2942 2943 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 2944 if (ddp->ddp_phys_birth == 0) 2945 continue; 2946 ddt_bp_create(ddb.ddb_checksum, 2947 &dde.dde_key, ddp, &blk); 2948 if (p == DDT_PHYS_DITTO) { 2949 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 2950 } else { 2951 zcb->zcb_dedup_asize += 2952 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 2953 zcb->zcb_dedup_blocks++; 2954 } 2955 } 2956 if (!dump_opt['L']) { 2957 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 2958 ddt_enter(ddt); 2959 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 2960 ddt_exit(ddt); 2961 } 2962 } 2963 2964 ASSERT(error == ENOENT); 2965 } 2966 2967 /* ARGSUSED */ 2968 static void 2969 claim_segment_impl_cb(uint64_t inner_offset, vdev_t *vd, uint64_t offset, 2970 uint64_t size, void *arg) 2971 { 2972 /* 2973 * This callback was called through a remap from 2974 * a device being removed. Therefore, the vdev that 2975 * this callback is applied to is a concrete 2976 * vdev. 2977 */ 2978 ASSERT(vdev_is_concrete(vd)); 2979 2980 VERIFY0(metaslab_claim_impl(vd, offset, size, 2981 spa_min_claim_txg(vd->vdev_spa))); 2982 } 2983 2984 static void 2985 claim_segment_cb(void *arg, uint64_t offset, uint64_t size) 2986 { 2987 vdev_t *vd = arg; 2988 2989 vdev_indirect_ops.vdev_op_remap(vd, offset, size, 2990 claim_segment_impl_cb, NULL); 2991 } 2992 2993 /* 2994 * After accounting for all allocated blocks that are directly referenced, 2995 * we might have missed a reference to a block from a partially complete 2996 * (and thus unused) indirect mapping object. We perform a secondary pass 2997 * through the metaslabs we have already mapped and claim the destination 2998 * blocks. 2999 */ 3000 static void 3001 zdb_claim_removing(spa_t *spa, zdb_cb_t *zcb) 3002 { 3003 if (spa->spa_vdev_removal == NULL) 3004 return; 3005 3006 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 3007 3008 spa_vdev_removal_t *svr = spa->spa_vdev_removal; 3009 vdev_t *vd = vdev_lookup_top(spa, svr->svr_vdev_id); 3010 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 3011 3012 for (uint64_t msi = 0; msi < vd->vdev_ms_count; msi++) { 3013 metaslab_t *msp = vd->vdev_ms[msi]; 3014 3015 if (msp->ms_start >= vdev_indirect_mapping_max_offset(vim)) 3016 break; 3017 3018 ASSERT0(range_tree_space(svr->svr_allocd_segs)); 3019 3020 if (msp->ms_sm != NULL) { 3021 VERIFY0(space_map_load(msp->ms_sm, 3022 svr->svr_allocd_segs, SM_ALLOC)); 3023 3024 /* 3025 * Clear everything past what has been synced unless 3026 * it's past the spacemap, because we have not allocated 3027 * mappings for it yet. 3028 */ 3029 uint64_t vim_max_offset = 3030 vdev_indirect_mapping_max_offset(vim); 3031 uint64_t sm_end = msp->ms_sm->sm_start + 3032 msp->ms_sm->sm_size; 3033 if (sm_end > vim_max_offset) 3034 range_tree_clear(svr->svr_allocd_segs, 3035 vim_max_offset, sm_end - vim_max_offset); 3036 } 3037 3038 zcb->zcb_removing_size += 3039 range_tree_space(svr->svr_allocd_segs); 3040 range_tree_vacate(svr->svr_allocd_segs, claim_segment_cb, vd); 3041 } 3042 3043 spa_config_exit(spa, SCL_CONFIG, FTAG); 3044 } 3045 3046 /* ARGSUSED */ 3047 static int 3048 increment_indirect_mapping_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 3049 { 3050 zdb_cb_t *zcb = arg; 3051 spa_t *spa = zcb->zcb_spa; 3052 vdev_t *vd; 3053 const dva_t *dva = &bp->blk_dva[0]; 3054 3055 ASSERT(!dump_opt['L']); 3056 ASSERT3U(BP_GET_NDVAS(bp), ==, 1); 3057 3058 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER); 3059 vd = vdev_lookup_top(zcb->zcb_spa, DVA_GET_VDEV(dva)); 3060 ASSERT3P(vd, !=, NULL); 3061 spa_config_exit(spa, SCL_VDEV, FTAG); 3062 3063 ASSERT(vd->vdev_indirect_config.vic_mapping_object != 0); 3064 ASSERT3P(zcb->zcb_vd_obsolete_counts[vd->vdev_id], !=, NULL); 3065 3066 vdev_indirect_mapping_increment_obsolete_count( 3067 vd->vdev_indirect_mapping, 3068 DVA_GET_OFFSET(dva), DVA_GET_ASIZE(dva), 3069 zcb->zcb_vd_obsolete_counts[vd->vdev_id]); 3070 3071 return (0); 3072 } 3073 3074 static uint32_t * 3075 zdb_load_obsolete_counts(vdev_t *vd) 3076 { 3077 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 3078 spa_t *spa = vd->vdev_spa; 3079 spa_condensing_indirect_phys_t *scip = 3080 &spa->spa_condensing_indirect_phys; 3081 uint32_t *counts; 3082 3083 EQUIV(vdev_obsolete_sm_object(vd) != 0, vd->vdev_obsolete_sm != NULL); 3084 counts = vdev_indirect_mapping_load_obsolete_counts(vim); 3085 if (vd->vdev_obsolete_sm != NULL) { 3086 vdev_indirect_mapping_load_obsolete_spacemap(vim, counts, 3087 vd->vdev_obsolete_sm); 3088 } 3089 if (scip->scip_vdev == vd->vdev_id && 3090 scip->scip_prev_obsolete_sm_object != 0) { 3091 space_map_t *prev_obsolete_sm = NULL; 3092 VERIFY0(space_map_open(&prev_obsolete_sm, spa->spa_meta_objset, 3093 scip->scip_prev_obsolete_sm_object, 0, vd->vdev_asize, 0)); 3094 space_map_update(prev_obsolete_sm); 3095 vdev_indirect_mapping_load_obsolete_spacemap(vim, counts, 3096 prev_obsolete_sm); 3097 space_map_close(prev_obsolete_sm); 3098 } 3099 return (counts); 3100 } 3101 3102 typedef struct checkpoint_sm_exclude_entry_arg { 3103 vdev_t *cseea_vd; 3104 uint64_t cseea_checkpoint_size; 3105 } checkpoint_sm_exclude_entry_arg_t; 3106 3107 static int 3108 checkpoint_sm_exclude_entry_cb(space_map_entry_t *sme, void *arg) 3109 { 3110 checkpoint_sm_exclude_entry_arg_t *cseea = arg; 3111 vdev_t *vd = cseea->cseea_vd; 3112 metaslab_t *ms = vd->vdev_ms[sme->sme_offset >> vd->vdev_ms_shift]; 3113 uint64_t end = sme->sme_offset + sme->sme_run; 3114 3115 ASSERT(sme->sme_type == SM_FREE); 3116 3117 /* 3118 * Since the vdev_checkpoint_sm exists in the vdev level 3119 * and the ms_sm space maps exist in the metaslab level, 3120 * an entry in the checkpoint space map could theoretically 3121 * cross the boundaries of the metaslab that it belongs. 3122 * 3123 * In reality, because of the way that we populate and 3124 * manipulate the checkpoint's space maps currently, 3125 * there shouldn't be any entries that cross metaslabs. 3126 * Hence the assertion below. 3127 * 3128 * That said, there is no fundamental requirement that 3129 * the checkpoint's space map entries should not cross 3130 * metaslab boundaries. So if needed we could add code 3131 * that handles metaslab-crossing segments in the future. 3132 */ 3133 VERIFY3U(sme->sme_offset, >=, ms->ms_start); 3134 VERIFY3U(end, <=, ms->ms_start + ms->ms_size); 3135 3136 /* 3137 * By removing the entry from the allocated segments we 3138 * also verify that the entry is there to begin with. 3139 */ 3140 mutex_enter(&ms->ms_lock); 3141 range_tree_remove(ms->ms_allocatable, sme->sme_offset, sme->sme_run); 3142 mutex_exit(&ms->ms_lock); 3143 3144 cseea->cseea_checkpoint_size += sme->sme_run; 3145 return (0); 3146 } 3147 3148 static void 3149 zdb_leak_init_vdev_exclude_checkpoint(vdev_t *vd, zdb_cb_t *zcb) 3150 { 3151 spa_t *spa = vd->vdev_spa; 3152 space_map_t *checkpoint_sm = NULL; 3153 uint64_t checkpoint_sm_obj; 3154 3155 /* 3156 * If there is no vdev_top_zap, we are in a pool whose 3157 * version predates the pool checkpoint feature. 3158 */ 3159 if (vd->vdev_top_zap == 0) 3160 return; 3161 3162 /* 3163 * If there is no reference of the vdev_checkpoint_sm in 3164 * the vdev_top_zap, then one of the following scenarios 3165 * is true: 3166 * 3167 * 1] There is no checkpoint 3168 * 2] There is a checkpoint, but no checkpointed blocks 3169 * have been freed yet 3170 * 3] The current vdev is indirect 3171 * 3172 * In these cases we return immediately. 3173 */ 3174 if (zap_contains(spa_meta_objset(spa), vd->vdev_top_zap, 3175 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0) 3176 return; 3177 3178 VERIFY0(zap_lookup(spa_meta_objset(spa), vd->vdev_top_zap, 3179 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, sizeof (uint64_t), 1, 3180 &checkpoint_sm_obj)); 3181 3182 checkpoint_sm_exclude_entry_arg_t cseea; 3183 cseea.cseea_vd = vd; 3184 cseea.cseea_checkpoint_size = 0; 3185 3186 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(spa), 3187 checkpoint_sm_obj, 0, vd->vdev_asize, vd->vdev_ashift)); 3188 space_map_update(checkpoint_sm); 3189 3190 VERIFY0(space_map_iterate(checkpoint_sm, 3191 checkpoint_sm_exclude_entry_cb, &cseea)); 3192 space_map_close(checkpoint_sm); 3193 3194 zcb->zcb_checkpoint_size += cseea.cseea_checkpoint_size; 3195 } 3196 3197 static void 3198 zdb_leak_init_exclude_checkpoint(spa_t *spa, zdb_cb_t *zcb) 3199 { 3200 vdev_t *rvd = spa->spa_root_vdev; 3201 for (uint64_t c = 0; c < rvd->vdev_children; c++) { 3202 ASSERT3U(c, ==, rvd->vdev_child[c]->vdev_id); 3203 zdb_leak_init_vdev_exclude_checkpoint(rvd->vdev_child[c], zcb); 3204 } 3205 } 3206 3207 static void 3208 load_concrete_ms_allocatable_trees(spa_t *spa, maptype_t maptype) 3209 { 3210 vdev_t *rvd = spa->spa_root_vdev; 3211 for (uint64_t i = 0; i < rvd->vdev_children; i++) { 3212 vdev_t *vd = rvd->vdev_child[i]; 3213 3214 ASSERT3U(i, ==, vd->vdev_id); 3215 3216 if (vd->vdev_ops == &vdev_indirect_ops) 3217 continue; 3218 3219 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 3220 metaslab_t *msp = vd->vdev_ms[m]; 3221 3222 (void) fprintf(stderr, 3223 "\rloading concrete vdev %llu, " 3224 "metaslab %llu of %llu ...", 3225 (longlong_t)vd->vdev_id, 3226 (longlong_t)msp->ms_id, 3227 (longlong_t)vd->vdev_ms_count); 3228 3229 mutex_enter(&msp->ms_lock); 3230 metaslab_unload(msp); 3231 3232 /* 3233 * We don't want to spend the CPU manipulating the 3234 * size-ordered tree, so clear the range_tree ops. 3235 */ 3236 msp->ms_allocatable->rt_ops = NULL; 3237 3238 if (msp->ms_sm != NULL) { 3239 VERIFY0(space_map_load(msp->ms_sm, 3240 msp->ms_allocatable, maptype)); 3241 } 3242 if (!msp->ms_loaded) 3243 msp->ms_loaded = B_TRUE; 3244 mutex_exit(&msp->ms_lock); 3245 } 3246 } 3247 } 3248 3249 /* 3250 * vm_idxp is an in-out parameter which (for indirect vdevs) is the 3251 * index in vim_entries that has the first entry in this metaslab. 3252 * On return, it will be set to the first entry after this metaslab. 3253 */ 3254 static void 3255 load_indirect_ms_allocatable_tree(vdev_t *vd, metaslab_t *msp, 3256 uint64_t *vim_idxp) 3257 { 3258 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 3259 3260 mutex_enter(&msp->ms_lock); 3261 metaslab_unload(msp); 3262 3263 /* 3264 * We don't want to spend the CPU manipulating the 3265 * size-ordered tree, so clear the range_tree ops. 3266 */ 3267 msp->ms_allocatable->rt_ops = NULL; 3268 3269 for (; *vim_idxp < vdev_indirect_mapping_num_entries(vim); 3270 (*vim_idxp)++) { 3271 vdev_indirect_mapping_entry_phys_t *vimep = 3272 &vim->vim_entries[*vim_idxp]; 3273 uint64_t ent_offset = DVA_MAPPING_GET_SRC_OFFSET(vimep); 3274 uint64_t ent_len = DVA_GET_ASIZE(&vimep->vimep_dst); 3275 ASSERT3U(ent_offset, >=, msp->ms_start); 3276 if (ent_offset >= msp->ms_start + msp->ms_size) 3277 break; 3278 3279 /* 3280 * Mappings do not cross metaslab boundaries, 3281 * because we create them by walking the metaslabs. 3282 */ 3283 ASSERT3U(ent_offset + ent_len, <=, 3284 msp->ms_start + msp->ms_size); 3285 range_tree_add(msp->ms_allocatable, ent_offset, ent_len); 3286 } 3287 3288 if (!msp->ms_loaded) 3289 msp->ms_loaded = B_TRUE; 3290 mutex_exit(&msp->ms_lock); 3291 } 3292 3293 static void 3294 zdb_leak_init_prepare_indirect_vdevs(spa_t *spa, zdb_cb_t *zcb) 3295 { 3296 vdev_t *rvd = spa->spa_root_vdev; 3297 for (uint64_t c = 0; c < rvd->vdev_children; c++) { 3298 vdev_t *vd = rvd->vdev_child[c]; 3299 3300 ASSERT3U(c, ==, vd->vdev_id); 3301 3302 if (vd->vdev_ops != &vdev_indirect_ops) 3303 continue; 3304 3305 /* 3306 * Note: we don't check for mapping leaks on 3307 * removing vdevs because their ms_allocatable's 3308 * are used to look for leaks in allocated space. 3309 */ 3310 zcb->zcb_vd_obsolete_counts[c] = zdb_load_obsolete_counts(vd); 3311 3312 /* 3313 * Normally, indirect vdevs don't have any 3314 * metaslabs. We want to set them up for 3315 * zio_claim(). 3316 */ 3317 VERIFY0(vdev_metaslab_init(vd, 0)); 3318 3319 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 3320 uint64_t vim_idx = 0; 3321 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 3322 3323 (void) fprintf(stderr, 3324 "\rloading indirect vdev %llu, " 3325 "metaslab %llu of %llu ...", 3326 (longlong_t)vd->vdev_id, 3327 (longlong_t)vd->vdev_ms[m]->ms_id, 3328 (longlong_t)vd->vdev_ms_count); 3329 3330 load_indirect_ms_allocatable_tree(vd, vd->vdev_ms[m], 3331 &vim_idx); 3332 } 3333 ASSERT3U(vim_idx, ==, vdev_indirect_mapping_num_entries(vim)); 3334 } 3335 } 3336 3337 static void 3338 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 3339 { 3340 zcb->zcb_spa = spa; 3341 3342 if (!dump_opt['L']) { 3343 dsl_pool_t *dp = spa->spa_dsl_pool; 3344 vdev_t *rvd = spa->spa_root_vdev; 3345 3346 /* 3347 * We are going to be changing the meaning of the metaslab's 3348 * ms_allocatable. Ensure that the allocator doesn't try to 3349 * use the tree. 3350 */ 3351 spa->spa_normal_class->mc_ops = &zdb_metaslab_ops; 3352 spa->spa_log_class->mc_ops = &zdb_metaslab_ops; 3353 3354 zcb->zcb_vd_obsolete_counts = 3355 umem_zalloc(rvd->vdev_children * sizeof (uint32_t *), 3356 UMEM_NOFAIL); 3357 3358 /* 3359 * For leak detection, we overload the ms_allocatable trees 3360 * to contain allocated segments instead of free segments. 3361 * As a result, we can't use the normal metaslab_load/unload 3362 * interfaces. 3363 */ 3364 zdb_leak_init_prepare_indirect_vdevs(spa, zcb); 3365 load_concrete_ms_allocatable_trees(spa, SM_ALLOC); 3366 3367 /* 3368 * On load_concrete_ms_allocatable_trees() we loaded all the 3369 * allocated entries from the ms_sm to the ms_allocatable for 3370 * each metaslab. If the pool has a checkpoint or is in the 3371 * middle of discarding a checkpoint, some of these blocks 3372 * may have been freed but their ms_sm may not have been 3373 * updated because they are referenced by the checkpoint. In 3374 * order to avoid false-positives during leak-detection, we 3375 * go through the vdev's checkpoint space map and exclude all 3376 * its entries from their relevant ms_allocatable. 3377 * 3378 * We also aggregate the space held by the checkpoint and add 3379 * it to zcb_checkpoint_size. 3380 * 3381 * Note that at this point we are also verifying that all the 3382 * entries on the checkpoint_sm are marked as allocated in 3383 * the ms_sm of their relevant metaslab. 3384 * [see comment in checkpoint_sm_exclude_entry_cb()] 3385 */ 3386 zdb_leak_init_exclude_checkpoint(spa, zcb); 3387 3388 /* for cleaner progress output */ 3389 (void) fprintf(stderr, "\n"); 3390 3391 if (bpobj_is_open(&dp->dp_obsolete_bpobj)) { 3392 ASSERT(spa_feature_is_enabled(spa, 3393 SPA_FEATURE_DEVICE_REMOVAL)); 3394 (void) bpobj_iterate_nofree(&dp->dp_obsolete_bpobj, 3395 increment_indirect_mapping_cb, zcb, NULL); 3396 } 3397 } else { 3398 /* 3399 * If leak tracing is disabled, we still need to consider 3400 * any checkpointed space in our space verification. 3401 */ 3402 zcb->zcb_checkpoint_size += spa_get_checkpoint_space(spa); 3403 } 3404 3405 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 3406 zdb_ddt_leak_init(spa, zcb); 3407 spa_config_exit(spa, SCL_CONFIG, FTAG); 3408 } 3409 3410 static boolean_t 3411 zdb_check_for_obsolete_leaks(vdev_t *vd, zdb_cb_t *zcb) 3412 { 3413 boolean_t leaks = B_FALSE; 3414 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 3415 uint64_t total_leaked = 0; 3416 3417 ASSERT(vim != NULL); 3418 3419 for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) { 3420 vdev_indirect_mapping_entry_phys_t *vimep = 3421 &vim->vim_entries[i]; 3422 uint64_t obsolete_bytes = 0; 3423 uint64_t offset = DVA_MAPPING_GET_SRC_OFFSET(vimep); 3424 metaslab_t *msp = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 3425 3426 /* 3427 * This is not very efficient but it's easy to 3428 * verify correctness. 3429 */ 3430 for (uint64_t inner_offset = 0; 3431 inner_offset < DVA_GET_ASIZE(&vimep->vimep_dst); 3432 inner_offset += 1 << vd->vdev_ashift) { 3433 if (range_tree_contains(msp->ms_allocatable, 3434 offset + inner_offset, 1 << vd->vdev_ashift)) { 3435 obsolete_bytes += 1 << vd->vdev_ashift; 3436 } 3437 } 3438 3439 int64_t bytes_leaked = obsolete_bytes - 3440 zcb->zcb_vd_obsolete_counts[vd->vdev_id][i]; 3441 ASSERT3U(DVA_GET_ASIZE(&vimep->vimep_dst), >=, 3442 zcb->zcb_vd_obsolete_counts[vd->vdev_id][i]); 3443 if (bytes_leaked != 0 && 3444 (vdev_obsolete_counts_are_precise(vd) || 3445 dump_opt['d'] >= 5)) { 3446 (void) printf("obsolete indirect mapping count " 3447 "mismatch on %llu:%llx:%llx : %llx bytes leaked\n", 3448 (u_longlong_t)vd->vdev_id, 3449 (u_longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep), 3450 (u_longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst), 3451 (u_longlong_t)bytes_leaked); 3452 } 3453 total_leaked += ABS(bytes_leaked); 3454 } 3455 3456 if (!vdev_obsolete_counts_are_precise(vd) && total_leaked > 0) { 3457 int pct_leaked = total_leaked * 100 / 3458 vdev_indirect_mapping_bytes_mapped(vim); 3459 (void) printf("cannot verify obsolete indirect mapping " 3460 "counts of vdev %llu because precise feature was not " 3461 "enabled when it was removed: %d%% (%llx bytes) of mapping" 3462 "unreferenced\n", 3463 (u_longlong_t)vd->vdev_id, pct_leaked, 3464 (u_longlong_t)total_leaked); 3465 } else if (total_leaked > 0) { 3466 (void) printf("obsolete indirect mapping count mismatch " 3467 "for vdev %llu -- %llx total bytes mismatched\n", 3468 (u_longlong_t)vd->vdev_id, 3469 (u_longlong_t)total_leaked); 3470 leaks |= B_TRUE; 3471 } 3472 3473 vdev_indirect_mapping_free_obsolete_counts(vim, 3474 zcb->zcb_vd_obsolete_counts[vd->vdev_id]); 3475 zcb->zcb_vd_obsolete_counts[vd->vdev_id] = NULL; 3476 3477 return (leaks); 3478 } 3479 3480 static boolean_t 3481 zdb_leak_fini(spa_t *spa, zdb_cb_t *zcb) 3482 { 3483 boolean_t leaks = B_FALSE; 3484 if (!dump_opt['L']) { 3485 vdev_t *rvd = spa->spa_root_vdev; 3486 for (unsigned c = 0; c < rvd->vdev_children; c++) { 3487 vdev_t *vd = rvd->vdev_child[c]; 3488 metaslab_group_t *mg = vd->vdev_mg; 3489 3490 if (zcb->zcb_vd_obsolete_counts[c] != NULL) { 3491 leaks |= zdb_check_for_obsolete_leaks(vd, zcb); 3492 } 3493 3494 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 3495 metaslab_t *msp = vd->vdev_ms[m]; 3496 ASSERT3P(mg, ==, msp->ms_group); 3497 3498 /* 3499 * ms_allocatable has been overloaded 3500 * to contain allocated segments. Now that 3501 * we finished traversing all blocks, any 3502 * block that remains in the ms_allocatable 3503 * represents an allocated block that we 3504 * did not claim during the traversal. 3505 * Claimed blocks would have been removed 3506 * from the ms_allocatable. For indirect 3507 * vdevs, space remaining in the tree 3508 * represents parts of the mapping that are 3509 * not referenced, which is not a bug. 3510 */ 3511 if (vd->vdev_ops == &vdev_indirect_ops) { 3512 range_tree_vacate(msp->ms_allocatable, 3513 NULL, NULL); 3514 } else { 3515 range_tree_vacate(msp->ms_allocatable, 3516 zdb_leak, vd); 3517 } 3518 3519 if (msp->ms_loaded) { 3520 msp->ms_loaded = B_FALSE; 3521 } 3522 } 3523 } 3524 3525 umem_free(zcb->zcb_vd_obsolete_counts, 3526 rvd->vdev_children * sizeof (uint32_t *)); 3527 zcb->zcb_vd_obsolete_counts = NULL; 3528 } 3529 return (leaks); 3530 } 3531 3532 /* ARGSUSED */ 3533 static int 3534 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 3535 { 3536 zdb_cb_t *zcb = arg; 3537 3538 if (dump_opt['b'] >= 5) { 3539 char blkbuf[BP_SPRINTF_LEN]; 3540 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 3541 (void) printf("[%s] %s\n", 3542 "deferred free", blkbuf); 3543 } 3544 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 3545 return (0); 3546 } 3547 3548 static int 3549 dump_block_stats(spa_t *spa) 3550 { 3551 zdb_cb_t zcb; 3552 zdb_blkstats_t *zb, *tzb; 3553 uint64_t norm_alloc, norm_space, total_alloc, total_found; 3554 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; 3555 boolean_t leaks = B_FALSE; 3556 3557 bzero(&zcb, sizeof (zcb)); 3558 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 3559 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 3560 (dump_opt['c'] == 1) ? "metadata " : "", 3561 dump_opt['c'] ? "checksums " : "", 3562 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 3563 !dump_opt['L'] ? "nothing leaked " : ""); 3564 3565 /* 3566 * Load all space maps as SM_ALLOC maps, then traverse the pool 3567 * claiming each block we discover. If the pool is perfectly 3568 * consistent, the space maps will be empty when we're done. 3569 * Anything left over is a leak; any block we can't claim (because 3570 * it's not part of any space map) is a double allocation, 3571 * reference to a freed block, or an unclaimed log block. 3572 */ 3573 zdb_leak_init(spa, &zcb); 3574 3575 /* 3576 * If there's a deferred-free bplist, process that first. 3577 */ 3578 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 3579 count_block_cb, &zcb, NULL); 3580 3581 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 3582 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 3583 count_block_cb, &zcb, NULL); 3584 } 3585 3586 zdb_claim_removing(spa, &zcb); 3587 3588 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 3589 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 3590 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 3591 &zcb, NULL)); 3592 } 3593 3594 if (dump_opt['c'] > 1) 3595 flags |= TRAVERSE_PREFETCH_DATA; 3596 3597 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 3598 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 3599 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 3600 3601 /* 3602 * If we've traversed the data blocks then we need to wait for those 3603 * I/Os to complete. We leverage "The Godfather" zio to wait on 3604 * all async I/Os to complete. 3605 */ 3606 if (dump_opt['c']) { 3607 for (int i = 0; i < max_ncpus; i++) { 3608 (void) zio_wait(spa->spa_async_zio_root[i]); 3609 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL, 3610 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 3611 ZIO_FLAG_GODFATHER); 3612 } 3613 } 3614 3615 if (zcb.zcb_haderrors) { 3616 (void) printf("\nError counts:\n\n"); 3617 (void) printf("\t%5s %s\n", "errno", "count"); 3618 for (int e = 0; e < 256; e++) { 3619 if (zcb.zcb_errors[e] != 0) { 3620 (void) printf("\t%5d %llu\n", 3621 e, (u_longlong_t)zcb.zcb_errors[e]); 3622 } 3623 } 3624 } 3625 3626 /* 3627 * Report any leaked segments. 3628 */ 3629 leaks |= zdb_leak_fini(spa, &zcb); 3630 3631 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 3632 3633 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 3634 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 3635 3636 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); 3637 total_found = tzb->zb_asize - zcb.zcb_dedup_asize + 3638 zcb.zcb_removing_size + zcb.zcb_checkpoint_size; 3639 3640 if (total_found == total_alloc) { 3641 if (!dump_opt['L']) 3642 (void) printf("\n\tNo leaks (block sum matches space" 3643 " maps exactly)\n"); 3644 } else { 3645 (void) printf("block traversal size %llu != alloc %llu " 3646 "(%s %lld)\n", 3647 (u_longlong_t)total_found, 3648 (u_longlong_t)total_alloc, 3649 (dump_opt['L']) ? "unreachable" : "leaked", 3650 (longlong_t)(total_alloc - total_found)); 3651 leaks = B_TRUE; 3652 } 3653 3654 if (tzb->zb_count == 0) 3655 return (2); 3656 3657 (void) printf("\n"); 3658 (void) printf("\tbp count: %10llu\n", 3659 (u_longlong_t)tzb->zb_count); 3660 (void) printf("\tganged count: %10llu\n", 3661 (longlong_t)tzb->zb_gangs); 3662 (void) printf("\tbp logical: %10llu avg: %6llu\n", 3663 (u_longlong_t)tzb->zb_lsize, 3664 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 3665 (void) printf("\tbp physical: %10llu avg:" 3666 " %6llu compression: %6.2f\n", 3667 (u_longlong_t)tzb->zb_psize, 3668 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 3669 (double)tzb->zb_lsize / tzb->zb_psize); 3670 (void) printf("\tbp allocated: %10llu avg:" 3671 " %6llu compression: %6.2f\n", 3672 (u_longlong_t)tzb->zb_asize, 3673 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 3674 (double)tzb->zb_lsize / tzb->zb_asize); 3675 (void) printf("\tbp deduped: %10llu ref>1:" 3676 " %6llu deduplication: %6.2f\n", 3677 (u_longlong_t)zcb.zcb_dedup_asize, 3678 (u_longlong_t)zcb.zcb_dedup_blocks, 3679 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 3680 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", 3681 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 3682 3683 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) { 3684 if (zcb.zcb_embedded_blocks[i] == 0) 3685 continue; 3686 (void) printf("\n"); 3687 (void) printf("\tadditional, non-pointer bps of type %u: " 3688 "%10llu\n", 3689 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]); 3690 3691 if (dump_opt['b'] >= 3) { 3692 (void) printf("\t number of (compressed) bytes: " 3693 "number of bps\n"); 3694 dump_histogram(zcb.zcb_embedded_histogram[i], 3695 sizeof (zcb.zcb_embedded_histogram[i]) / 3696 sizeof (zcb.zcb_embedded_histogram[i][0]), 0); 3697 } 3698 } 3699 3700 if (tzb->zb_ditto_samevdev != 0) { 3701 (void) printf("\tDittoed blocks on same vdev: %llu\n", 3702 (longlong_t)tzb->zb_ditto_samevdev); 3703 } 3704 3705 for (uint64_t v = 0; v < spa->spa_root_vdev->vdev_children; v++) { 3706 vdev_t *vd = spa->spa_root_vdev->vdev_child[v]; 3707 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 3708 3709 if (vim == NULL) { 3710 continue; 3711 } 3712 3713 char mem[32]; 3714 zdb_nicenum(vdev_indirect_mapping_num_entries(vim), 3715 mem, vdev_indirect_mapping_size(vim)); 3716 3717 (void) printf("\tindirect vdev id %llu has %llu segments " 3718 "(%s in memory)\n", 3719 (longlong_t)vd->vdev_id, 3720 (longlong_t)vdev_indirect_mapping_num_entries(vim), mem); 3721 } 3722 3723 if (dump_opt['b'] >= 2) { 3724 int l, t, level; 3725 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 3726 "\t avg\t comp\t%%Total\tType\n"); 3727 3728 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 3729 char csize[32], lsize[32], psize[32], asize[32]; 3730 char avg[32], gang[32]; 3731 const char *typename; 3732 3733 /* make sure nicenum has enough space */ 3734 CTASSERT(sizeof (csize) >= NN_NUMBUF_SZ); 3735 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ); 3736 CTASSERT(sizeof (psize) >= NN_NUMBUF_SZ); 3737 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ); 3738 CTASSERT(sizeof (avg) >= NN_NUMBUF_SZ); 3739 CTASSERT(sizeof (gang) >= NN_NUMBUF_SZ); 3740 3741 if (t < DMU_OT_NUMTYPES) 3742 typename = dmu_ot[t].ot_name; 3743 else 3744 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 3745 3746 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 3747 (void) printf("%6s\t%5s\t%5s\t%5s" 3748 "\t%5s\t%5s\t%6s\t%s\n", 3749 "-", 3750 "-", 3751 "-", 3752 "-", 3753 "-", 3754 "-", 3755 "-", 3756 typename); 3757 continue; 3758 } 3759 3760 for (l = ZB_TOTAL - 1; l >= -1; l--) { 3761 level = (l == -1 ? ZB_TOTAL : l); 3762 zb = &zcb.zcb_type[level][t]; 3763 3764 if (zb->zb_asize == 0) 3765 continue; 3766 3767 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 3768 continue; 3769 3770 if (level == 0 && zb->zb_asize == 3771 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 3772 continue; 3773 3774 zdb_nicenum(zb->zb_count, csize, 3775 sizeof (csize)); 3776 zdb_nicenum(zb->zb_lsize, lsize, 3777 sizeof (lsize)); 3778 zdb_nicenum(zb->zb_psize, psize, 3779 sizeof (psize)); 3780 zdb_nicenum(zb->zb_asize, asize, 3781 sizeof (asize)); 3782 zdb_nicenum(zb->zb_asize / zb->zb_count, avg, 3783 sizeof (avg)); 3784 zdb_nicenum(zb->zb_gangs, gang, sizeof (gang)); 3785 3786 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 3787 "\t%5.2f\t%6.2f\t", 3788 csize, lsize, psize, asize, avg, 3789 (double)zb->zb_lsize / zb->zb_psize, 3790 100.0 * zb->zb_asize / tzb->zb_asize); 3791 3792 if (level == ZB_TOTAL) 3793 (void) printf("%s\n", typename); 3794 else 3795 (void) printf(" L%d %s\n", 3796 level, typename); 3797 3798 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { 3799 (void) printf("\t number of ganged " 3800 "blocks: %s\n", gang); 3801 } 3802 3803 if (dump_opt['b'] >= 4) { 3804 (void) printf("psize " 3805 "(in 512-byte sectors): " 3806 "number of blocks\n"); 3807 dump_histogram(zb->zb_psize_histogram, 3808 PSIZE_HISTO_SIZE, 0); 3809 } 3810 } 3811 } 3812 } 3813 3814 (void) printf("\n"); 3815 3816 if (leaks) 3817 return (2); 3818 3819 if (zcb.zcb_haderrors) 3820 return (3); 3821 3822 return (0); 3823 } 3824 3825 typedef struct zdb_ddt_entry { 3826 ddt_key_t zdde_key; 3827 uint64_t zdde_ref_blocks; 3828 uint64_t zdde_ref_lsize; 3829 uint64_t zdde_ref_psize; 3830 uint64_t zdde_ref_dsize; 3831 avl_node_t zdde_node; 3832 } zdb_ddt_entry_t; 3833 3834 /* ARGSUSED */ 3835 static int 3836 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 3837 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 3838 { 3839 avl_tree_t *t = arg; 3840 avl_index_t where; 3841 zdb_ddt_entry_t *zdde, zdde_search; 3842 3843 if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp)) 3844 return (0); 3845 3846 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 3847 (void) printf("traversing objset %llu, %llu objects, " 3848 "%lu blocks so far\n", 3849 (u_longlong_t)zb->zb_objset, 3850 (u_longlong_t)BP_GET_FILL(bp), 3851 avl_numnodes(t)); 3852 } 3853 3854 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 3855 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 3856 return (0); 3857 3858 ddt_key_fill(&zdde_search.zdde_key, bp); 3859 3860 zdde = avl_find(t, &zdde_search, &where); 3861 3862 if (zdde == NULL) { 3863 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 3864 zdde->zdde_key = zdde_search.zdde_key; 3865 avl_insert(t, zdde, where); 3866 } 3867 3868 zdde->zdde_ref_blocks += 1; 3869 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 3870 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 3871 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 3872 3873 return (0); 3874 } 3875 3876 static void 3877 dump_simulated_ddt(spa_t *spa) 3878 { 3879 avl_tree_t t; 3880 void *cookie = NULL; 3881 zdb_ddt_entry_t *zdde; 3882 ddt_histogram_t ddh_total; 3883 ddt_stat_t dds_total; 3884 3885 bzero(&ddh_total, sizeof (ddh_total)); 3886 bzero(&dds_total, sizeof (dds_total)); 3887 avl_create(&t, ddt_entry_compare, 3888 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 3889 3890 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 3891 3892 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, 3893 zdb_ddt_add_cb, &t); 3894 3895 spa_config_exit(spa, SCL_CONFIG, FTAG); 3896 3897 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 3898 ddt_stat_t dds; 3899 uint64_t refcnt = zdde->zdde_ref_blocks; 3900 ASSERT(refcnt != 0); 3901 3902 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 3903 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 3904 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 3905 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 3906 3907 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 3908 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 3909 dds.dds_ref_psize = zdde->zdde_ref_psize; 3910 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 3911 3912 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1], 3913 &dds, 0); 3914 3915 umem_free(zdde, sizeof (*zdde)); 3916 } 3917 3918 avl_destroy(&t); 3919 3920 ddt_histogram_stat(&dds_total, &ddh_total); 3921 3922 (void) printf("Simulated DDT histogram:\n"); 3923 3924 zpool_dump_ddt(&dds_total, &ddh_total); 3925 3926 dump_dedup_ratio(&dds_total); 3927 } 3928 3929 static int 3930 verify_device_removal_feature_counts(spa_t *spa) 3931 { 3932 uint64_t dr_feature_refcount = 0; 3933 uint64_t oc_feature_refcount = 0; 3934 uint64_t indirect_vdev_count = 0; 3935 uint64_t precise_vdev_count = 0; 3936 uint64_t obsolete_counts_object_count = 0; 3937 uint64_t obsolete_sm_count = 0; 3938 uint64_t obsolete_counts_count = 0; 3939 uint64_t scip_count = 0; 3940 uint64_t obsolete_bpobj_count = 0; 3941 int ret = 0; 3942 3943 spa_condensing_indirect_phys_t *scip = 3944 &spa->spa_condensing_indirect_phys; 3945 if (scip->scip_next_mapping_object != 0) { 3946 vdev_t *vd = spa->spa_root_vdev->vdev_child[scip->scip_vdev]; 3947 ASSERT(scip->scip_prev_obsolete_sm_object != 0); 3948 ASSERT3P(vd->vdev_ops, ==, &vdev_indirect_ops); 3949 3950 (void) printf("Condensing indirect vdev %llu: new mapping " 3951 "object %llu, prev obsolete sm %llu\n", 3952 (u_longlong_t)scip->scip_vdev, 3953 (u_longlong_t)scip->scip_next_mapping_object, 3954 (u_longlong_t)scip->scip_prev_obsolete_sm_object); 3955 if (scip->scip_prev_obsolete_sm_object != 0) { 3956 space_map_t *prev_obsolete_sm = NULL; 3957 VERIFY0(space_map_open(&prev_obsolete_sm, 3958 spa->spa_meta_objset, 3959 scip->scip_prev_obsolete_sm_object, 3960 0, vd->vdev_asize, 0)); 3961 space_map_update(prev_obsolete_sm); 3962 dump_spacemap(spa->spa_meta_objset, prev_obsolete_sm); 3963 (void) printf("\n"); 3964 space_map_close(prev_obsolete_sm); 3965 } 3966 3967 scip_count += 2; 3968 } 3969 3970 for (uint64_t i = 0; i < spa->spa_root_vdev->vdev_children; i++) { 3971 vdev_t *vd = spa->spa_root_vdev->vdev_child[i]; 3972 vdev_indirect_config_t *vic = &vd->vdev_indirect_config; 3973 3974 if (vic->vic_mapping_object != 0) { 3975 ASSERT(vd->vdev_ops == &vdev_indirect_ops || 3976 vd->vdev_removing); 3977 indirect_vdev_count++; 3978 3979 if (vd->vdev_indirect_mapping->vim_havecounts) { 3980 obsolete_counts_count++; 3981 } 3982 } 3983 if (vdev_obsolete_counts_are_precise(vd)) { 3984 ASSERT(vic->vic_mapping_object != 0); 3985 precise_vdev_count++; 3986 } 3987 if (vdev_obsolete_sm_object(vd) != 0) { 3988 ASSERT(vic->vic_mapping_object != 0); 3989 obsolete_sm_count++; 3990 } 3991 } 3992 3993 (void) feature_get_refcount(spa, 3994 &spa_feature_table[SPA_FEATURE_DEVICE_REMOVAL], 3995 &dr_feature_refcount); 3996 (void) feature_get_refcount(spa, 3997 &spa_feature_table[SPA_FEATURE_OBSOLETE_COUNTS], 3998 &oc_feature_refcount); 3999 4000 if (dr_feature_refcount != indirect_vdev_count) { 4001 ret = 1; 4002 (void) printf("Number of indirect vdevs (%llu) " \ 4003 "does not match feature count (%llu)\n", 4004 (u_longlong_t)indirect_vdev_count, 4005 (u_longlong_t)dr_feature_refcount); 4006 } else { 4007 (void) printf("Verified device_removal feature refcount " \ 4008 "of %llu is correct\n", 4009 (u_longlong_t)dr_feature_refcount); 4010 } 4011 4012 if (zap_contains(spa_meta_objset(spa), DMU_POOL_DIRECTORY_OBJECT, 4013 DMU_POOL_OBSOLETE_BPOBJ) == 0) { 4014 obsolete_bpobj_count++; 4015 } 4016 4017 4018 obsolete_counts_object_count = precise_vdev_count; 4019 obsolete_counts_object_count += obsolete_sm_count; 4020 obsolete_counts_object_count += obsolete_counts_count; 4021 obsolete_counts_object_count += scip_count; 4022 obsolete_counts_object_count += obsolete_bpobj_count; 4023 obsolete_counts_object_count += remap_deadlist_count; 4024 4025 if (oc_feature_refcount != obsolete_counts_object_count) { 4026 ret = 1; 4027 (void) printf("Number of obsolete counts objects (%llu) " \ 4028 "does not match feature count (%llu)\n", 4029 (u_longlong_t)obsolete_counts_object_count, 4030 (u_longlong_t)oc_feature_refcount); 4031 (void) printf("pv:%llu os:%llu oc:%llu sc:%llu " 4032 "ob:%llu rd:%llu\n", 4033 (u_longlong_t)precise_vdev_count, 4034 (u_longlong_t)obsolete_sm_count, 4035 (u_longlong_t)obsolete_counts_count, 4036 (u_longlong_t)scip_count, 4037 (u_longlong_t)obsolete_bpobj_count, 4038 (u_longlong_t)remap_deadlist_count); 4039 } else { 4040 (void) printf("Verified indirect_refcount feature refcount " \ 4041 "of %llu is correct\n", 4042 (u_longlong_t)oc_feature_refcount); 4043 } 4044 return (ret); 4045 } 4046 4047 #define BOGUS_SUFFIX "_CHECKPOINTED_UNIVERSE" 4048 /* 4049 * Import the checkpointed state of the pool specified by the target 4050 * parameter as readonly. The function also accepts a pool config 4051 * as an optional parameter, else it attempts to infer the config by 4052 * the name of the target pool. 4053 * 4054 * Note that the checkpointed state's pool name will be the name of 4055 * the original pool with the above suffix appened to it. In addition, 4056 * if the target is not a pool name (e.g. a path to a dataset) then 4057 * the new_path parameter is populated with the updated path to 4058 * reflect the fact that we are looking into the checkpointed state. 4059 * 4060 * The function returns a newly-allocated copy of the name of the 4061 * pool containing the checkpointed state. When this copy is no 4062 * longer needed it should be freed with free(3C). Same thing 4063 * applies to the new_path parameter if allocated. 4064 */ 4065 static char * 4066 import_checkpointed_state(char *target, nvlist_t *cfg, char **new_path) 4067 { 4068 int error = 0; 4069 char *poolname, *bogus_name; 4070 4071 /* If the target is not a pool, the extract the pool name */ 4072 char *path_start = strchr(target, '/'); 4073 if (path_start != NULL) { 4074 size_t poolname_len = path_start - target; 4075 poolname = strndup(target, poolname_len); 4076 } else { 4077 poolname = target; 4078 } 4079 4080 if (cfg == NULL) { 4081 error = spa_get_stats(poolname, &cfg, NULL, 0); 4082 if (error != 0) { 4083 fatal("Tried to read config of pool \"%s\" but " 4084 "spa_get_stats() failed with error %d\n", 4085 poolname, error); 4086 } 4087 } 4088 4089 (void) asprintf(&bogus_name, "%s%s", poolname, BOGUS_SUFFIX); 4090 fnvlist_add_string(cfg, ZPOOL_CONFIG_POOL_NAME, bogus_name); 4091 4092 error = spa_import(bogus_name, cfg, NULL, 4093 ZFS_IMPORT_MISSING_LOG | ZFS_IMPORT_CHECKPOINT); 4094 if (error != 0) { 4095 fatal("Tried to import pool \"%s\" but spa_import() failed " 4096 "with error %d\n", bogus_name, error); 4097 } 4098 4099 if (new_path != NULL && path_start != NULL) 4100 (void) asprintf(new_path, "%s%s", bogus_name, path_start); 4101 4102 if (target != poolname) 4103 free(poolname); 4104 4105 return (bogus_name); 4106 } 4107 4108 typedef struct verify_checkpoint_sm_entry_cb_arg { 4109 vdev_t *vcsec_vd; 4110 4111 /* the following fields are only used for printing progress */ 4112 uint64_t vcsec_entryid; 4113 uint64_t vcsec_num_entries; 4114 } verify_checkpoint_sm_entry_cb_arg_t; 4115 4116 #define ENTRIES_PER_PROGRESS_UPDATE 10000 4117 4118 static int 4119 verify_checkpoint_sm_entry_cb(space_map_entry_t *sme, void *arg) 4120 { 4121 verify_checkpoint_sm_entry_cb_arg_t *vcsec = arg; 4122 vdev_t *vd = vcsec->vcsec_vd; 4123 metaslab_t *ms = vd->vdev_ms[sme->sme_offset >> vd->vdev_ms_shift]; 4124 uint64_t end = sme->sme_offset + sme->sme_run; 4125 4126 ASSERT(sme->sme_type == SM_FREE); 4127 4128 if ((vcsec->vcsec_entryid % ENTRIES_PER_PROGRESS_UPDATE) == 0) { 4129 (void) fprintf(stderr, 4130 "\rverifying vdev %llu, space map entry %llu of %llu ...", 4131 (longlong_t)vd->vdev_id, 4132 (longlong_t)vcsec->vcsec_entryid, 4133 (longlong_t)vcsec->vcsec_num_entries); 4134 } 4135 vcsec->vcsec_entryid++; 4136 4137 /* 4138 * See comment in checkpoint_sm_exclude_entry_cb() 4139 */ 4140 VERIFY3U(sme->sme_offset, >=, ms->ms_start); 4141 VERIFY3U(end, <=, ms->ms_start + ms->ms_size); 4142 4143 /* 4144 * The entries in the vdev_checkpoint_sm should be marked as 4145 * allocated in the checkpointed state of the pool, therefore 4146 * their respective ms_allocateable trees should not contain them. 4147 */ 4148 mutex_enter(&ms->ms_lock); 4149 range_tree_verify(ms->ms_allocatable, sme->sme_offset, sme->sme_run); 4150 mutex_exit(&ms->ms_lock); 4151 4152 return (0); 4153 } 4154 4155 /* 4156 * Verify that all segments in the vdev_checkpoint_sm are allocated 4157 * according to the checkpoint's ms_sm (i.e. are not in the checkpoint's 4158 * ms_allocatable). 4159 * 4160 * Do so by comparing the checkpoint space maps (vdev_checkpoint_sm) of 4161 * each vdev in the current state of the pool to the metaslab space maps 4162 * (ms_sm) of the checkpointed state of the pool. 4163 * 4164 * Note that the function changes the state of the ms_allocatable 4165 * trees of the current spa_t. The entries of these ms_allocatable 4166 * trees are cleared out and then repopulated from with the free 4167 * entries of their respective ms_sm space maps. 4168 */ 4169 static void 4170 verify_checkpoint_vdev_spacemaps(spa_t *checkpoint, spa_t *current) 4171 { 4172 vdev_t *ckpoint_rvd = checkpoint->spa_root_vdev; 4173 vdev_t *current_rvd = current->spa_root_vdev; 4174 4175 load_concrete_ms_allocatable_trees(checkpoint, SM_FREE); 4176 4177 for (uint64_t c = 0; c < ckpoint_rvd->vdev_children; c++) { 4178 vdev_t *ckpoint_vd = ckpoint_rvd->vdev_child[c]; 4179 vdev_t *current_vd = current_rvd->vdev_child[c]; 4180 4181 space_map_t *checkpoint_sm = NULL; 4182 uint64_t checkpoint_sm_obj; 4183 4184 if (ckpoint_vd->vdev_ops == &vdev_indirect_ops) { 4185 /* 4186 * Since we don't allow device removal in a pool 4187 * that has a checkpoint, we expect that all removed 4188 * vdevs were removed from the pool before the 4189 * checkpoint. 4190 */ 4191 ASSERT3P(current_vd->vdev_ops, ==, &vdev_indirect_ops); 4192 continue; 4193 } 4194 4195 /* 4196 * If the checkpoint space map doesn't exist, then nothing 4197 * here is checkpointed so there's nothing to verify. 4198 */ 4199 if (current_vd->vdev_top_zap == 0 || 4200 zap_contains(spa_meta_objset(current), 4201 current_vd->vdev_top_zap, 4202 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0) 4203 continue; 4204 4205 VERIFY0(zap_lookup(spa_meta_objset(current), 4206 current_vd->vdev_top_zap, VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, 4207 sizeof (uint64_t), 1, &checkpoint_sm_obj)); 4208 4209 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(current), 4210 checkpoint_sm_obj, 0, current_vd->vdev_asize, 4211 current_vd->vdev_ashift)); 4212 space_map_update(checkpoint_sm); 4213 4214 verify_checkpoint_sm_entry_cb_arg_t vcsec; 4215 vcsec.vcsec_vd = ckpoint_vd; 4216 vcsec.vcsec_entryid = 0; 4217 vcsec.vcsec_num_entries = 4218 space_map_length(checkpoint_sm) / sizeof (uint64_t); 4219 VERIFY0(space_map_iterate(checkpoint_sm, 4220 verify_checkpoint_sm_entry_cb, &vcsec)); 4221 dump_spacemap(current->spa_meta_objset, checkpoint_sm); 4222 space_map_close(checkpoint_sm); 4223 } 4224 4225 /* 4226 * If we've added vdevs since we took the checkpoint, ensure 4227 * that their checkpoint space maps are empty. 4228 */ 4229 if (ckpoint_rvd->vdev_children < current_rvd->vdev_children) { 4230 for (uint64_t c = ckpoint_rvd->vdev_children; 4231 c < current_rvd->vdev_children; c++) { 4232 vdev_t *current_vd = current_rvd->vdev_child[c]; 4233 ASSERT3P(current_vd->vdev_checkpoint_sm, ==, NULL); 4234 } 4235 } 4236 4237 /* for cleaner progress output */ 4238 (void) fprintf(stderr, "\n"); 4239 } 4240 4241 /* 4242 * Verifies that all space that's allocated in the checkpoint is 4243 * still allocated in the current version, by checking that everything 4244 * in checkpoint's ms_allocatable (which is actually allocated, not 4245 * allocatable/free) is not present in current's ms_allocatable. 4246 * 4247 * Note that the function changes the state of the ms_allocatable 4248 * trees of both spas when called. The entries of all ms_allocatable 4249 * trees are cleared out and then repopulated from their respective 4250 * ms_sm space maps. In the checkpointed state we load the allocated 4251 * entries, and in the current state we load the free entries. 4252 */ 4253 static void 4254 verify_checkpoint_ms_spacemaps(spa_t *checkpoint, spa_t *current) 4255 { 4256 vdev_t *ckpoint_rvd = checkpoint->spa_root_vdev; 4257 vdev_t *current_rvd = current->spa_root_vdev; 4258 4259 load_concrete_ms_allocatable_trees(checkpoint, SM_ALLOC); 4260 load_concrete_ms_allocatable_trees(current, SM_FREE); 4261 4262 for (uint64_t i = 0; i < ckpoint_rvd->vdev_children; i++) { 4263 vdev_t *ckpoint_vd = ckpoint_rvd->vdev_child[i]; 4264 vdev_t *current_vd = current_rvd->vdev_child[i]; 4265 4266 if (ckpoint_vd->vdev_ops == &vdev_indirect_ops) { 4267 /* 4268 * See comment in verify_checkpoint_vdev_spacemaps() 4269 */ 4270 ASSERT3P(current_vd->vdev_ops, ==, &vdev_indirect_ops); 4271 continue; 4272 } 4273 4274 for (uint64_t m = 0; m < ckpoint_vd->vdev_ms_count; m++) { 4275 metaslab_t *ckpoint_msp = ckpoint_vd->vdev_ms[m]; 4276 metaslab_t *current_msp = current_vd->vdev_ms[m]; 4277 4278 (void) fprintf(stderr, 4279 "\rverifying vdev %llu of %llu, " 4280 "metaslab %llu of %llu ...", 4281 (longlong_t)current_vd->vdev_id, 4282 (longlong_t)current_rvd->vdev_children, 4283 (longlong_t)current_vd->vdev_ms[m]->ms_id, 4284 (longlong_t)current_vd->vdev_ms_count); 4285 4286 /* 4287 * We walk through the ms_allocatable trees that 4288 * are loaded with the allocated blocks from the 4289 * ms_sm spacemaps of the checkpoint. For each 4290 * one of these ranges we ensure that none of them 4291 * exists in the ms_allocatable trees of the 4292 * current state which are loaded with the ranges 4293 * that are currently free. 4294 * 4295 * This way we ensure that none of the blocks that 4296 * are part of the checkpoint were freed by mistake. 4297 */ 4298 range_tree_walk(ckpoint_msp->ms_allocatable, 4299 (range_tree_func_t *)range_tree_verify, 4300 current_msp->ms_allocatable); 4301 } 4302 } 4303 4304 /* for cleaner progress output */ 4305 (void) fprintf(stderr, "\n"); 4306 } 4307 4308 static void 4309 verify_checkpoint_blocks(spa_t *spa) 4310 { 4311 spa_t *checkpoint_spa; 4312 char *checkpoint_pool; 4313 nvlist_t *config = NULL; 4314 int error = 0; 4315 4316 /* 4317 * We import the checkpointed state of the pool (under a different 4318 * name) so we can do verification on it against the current state 4319 * of the pool. 4320 */ 4321 checkpoint_pool = import_checkpointed_state(spa->spa_name, config, 4322 NULL); 4323 ASSERT(strcmp(spa->spa_name, checkpoint_pool) != 0); 4324 4325 error = spa_open(checkpoint_pool, &checkpoint_spa, FTAG); 4326 if (error != 0) { 4327 fatal("Tried to open pool \"%s\" but spa_open() failed with " 4328 "error %d\n", checkpoint_pool, error); 4329 } 4330 4331 /* 4332 * Ensure that ranges in the checkpoint space maps of each vdev 4333 * are allocated according to the checkpointed state's metaslab 4334 * space maps. 4335 */ 4336 verify_checkpoint_vdev_spacemaps(checkpoint_spa, spa); 4337 4338 /* 4339 * Ensure that allocated ranges in the checkpoint's metaslab 4340 * space maps remain allocated in the metaslab space maps of 4341 * the current state. 4342 */ 4343 verify_checkpoint_ms_spacemaps(checkpoint_spa, spa); 4344 4345 /* 4346 * Once we are done, we get rid of the checkpointed state. 4347 */ 4348 spa_close(checkpoint_spa, FTAG); 4349 free(checkpoint_pool); 4350 } 4351 4352 static void 4353 dump_leftover_checkpoint_blocks(spa_t *spa) 4354 { 4355 vdev_t *rvd = spa->spa_root_vdev; 4356 4357 for (uint64_t i = 0; i < rvd->vdev_children; i++) { 4358 vdev_t *vd = rvd->vdev_child[i]; 4359 4360 space_map_t *checkpoint_sm = NULL; 4361 uint64_t checkpoint_sm_obj; 4362 4363 if (vd->vdev_top_zap == 0) 4364 continue; 4365 4366 if (zap_contains(spa_meta_objset(spa), vd->vdev_top_zap, 4367 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0) 4368 continue; 4369 4370 VERIFY0(zap_lookup(spa_meta_objset(spa), vd->vdev_top_zap, 4371 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, 4372 sizeof (uint64_t), 1, &checkpoint_sm_obj)); 4373 4374 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(spa), 4375 checkpoint_sm_obj, 0, vd->vdev_asize, vd->vdev_ashift)); 4376 space_map_update(checkpoint_sm); 4377 dump_spacemap(spa->spa_meta_objset, checkpoint_sm); 4378 space_map_close(checkpoint_sm); 4379 } 4380 } 4381 4382 static int 4383 verify_checkpoint(spa_t *spa) 4384 { 4385 uberblock_t checkpoint; 4386 int error; 4387 4388 if (!spa_feature_is_active(spa, SPA_FEATURE_POOL_CHECKPOINT)) 4389 return (0); 4390 4391 error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, 4392 DMU_POOL_ZPOOL_CHECKPOINT, sizeof (uint64_t), 4393 sizeof (uberblock_t) / sizeof (uint64_t), &checkpoint); 4394 4395 if (error == ENOENT && !dump_opt['L']) { 4396 /* 4397 * If the feature is active but the uberblock is missing 4398 * then we must be in the middle of discarding the 4399 * checkpoint. 4400 */ 4401 (void) printf("\nPartially discarded checkpoint " 4402 "state found:\n"); 4403 dump_leftover_checkpoint_blocks(spa); 4404 return (0); 4405 } else if (error != 0) { 4406 (void) printf("lookup error %d when looking for " 4407 "checkpointed uberblock in MOS\n", error); 4408 return (error); 4409 } 4410 dump_uberblock(&checkpoint, "\nCheckpointed uberblock found:\n", "\n"); 4411 4412 if (checkpoint.ub_checkpoint_txg == 0) { 4413 (void) printf("\nub_checkpoint_txg not set in checkpointed " 4414 "uberblock\n"); 4415 error = 3; 4416 } 4417 4418 if (error == 0 && !dump_opt['L']) 4419 verify_checkpoint_blocks(spa); 4420 4421 return (error); 4422 } 4423 4424 static void 4425 dump_zpool(spa_t *spa) 4426 { 4427 dsl_pool_t *dp = spa_get_dsl(spa); 4428 int rc = 0; 4429 4430 if (dump_opt['S']) { 4431 dump_simulated_ddt(spa); 4432 return; 4433 } 4434 4435 if (!dump_opt['e'] && dump_opt['C'] > 1) { 4436 (void) printf("\nCached configuration:\n"); 4437 dump_nvlist(spa->spa_config, 8); 4438 } 4439 4440 if (dump_opt['C']) 4441 dump_config(spa); 4442 4443 if (dump_opt['u']) 4444 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 4445 4446 if (dump_opt['D']) 4447 dump_all_ddts(spa); 4448 4449 if (dump_opt['d'] > 2 || dump_opt['m']) 4450 dump_metaslabs(spa); 4451 if (dump_opt['M']) 4452 dump_metaslab_groups(spa); 4453 4454 if (dump_opt['d'] || dump_opt['i']) { 4455 dump_dir(dp->dp_meta_objset); 4456 if (dump_opt['d'] >= 3) { 4457 dsl_pool_t *dp = spa->spa_dsl_pool; 4458 dump_full_bpobj(&spa->spa_deferred_bpobj, 4459 "Deferred frees", 0); 4460 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 4461 dump_full_bpobj(&dp->dp_free_bpobj, 4462 "Pool snapshot frees", 0); 4463 } 4464 if (bpobj_is_open(&dp->dp_obsolete_bpobj)) { 4465 ASSERT(spa_feature_is_enabled(spa, 4466 SPA_FEATURE_DEVICE_REMOVAL)); 4467 dump_full_bpobj(&dp->dp_obsolete_bpobj, 4468 "Pool obsolete blocks", 0); 4469 } 4470 4471 if (spa_feature_is_active(spa, 4472 SPA_FEATURE_ASYNC_DESTROY)) { 4473 dump_bptree(spa->spa_meta_objset, 4474 dp->dp_bptree_obj, 4475 "Pool dataset frees"); 4476 } 4477 dump_dtl(spa->spa_root_vdev, 0); 4478 } 4479 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 4480 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 4481 4482 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) { 4483 uint64_t refcount; 4484 4485 if (!(spa_feature_table[f].fi_flags & 4486 ZFEATURE_FLAG_PER_DATASET) || 4487 !spa_feature_is_enabled(spa, f)) { 4488 ASSERT0(dataset_feature_count[f]); 4489 continue; 4490 } 4491 (void) feature_get_refcount(spa, 4492 &spa_feature_table[f], &refcount); 4493 if (dataset_feature_count[f] != refcount) { 4494 (void) printf("%s feature refcount mismatch: " 4495 "%lld datasets != %lld refcount\n", 4496 spa_feature_table[f].fi_uname, 4497 (longlong_t)dataset_feature_count[f], 4498 (longlong_t)refcount); 4499 rc = 2; 4500 } else { 4501 (void) printf("Verified %s feature refcount " 4502 "of %llu is correct\n", 4503 spa_feature_table[f].fi_uname, 4504 (longlong_t)refcount); 4505 } 4506 } 4507 4508 if (rc == 0) { 4509 rc = verify_device_removal_feature_counts(spa); 4510 } 4511 } 4512 if (rc == 0 && (dump_opt['b'] || dump_opt['c'])) 4513 rc = dump_block_stats(spa); 4514 4515 if (rc == 0) 4516 rc = verify_spacemap_refcounts(spa); 4517 4518 if (dump_opt['s']) 4519 show_pool_stats(spa); 4520 4521 if (dump_opt['h']) 4522 dump_history(spa); 4523 4524 if (rc == 0) 4525 rc = verify_checkpoint(spa); 4526 4527 if (rc != 0) { 4528 dump_debug_buffer(); 4529 exit(rc); 4530 } 4531 } 4532 4533 #define ZDB_FLAG_CHECKSUM 0x0001 4534 #define ZDB_FLAG_DECOMPRESS 0x0002 4535 #define ZDB_FLAG_BSWAP 0x0004 4536 #define ZDB_FLAG_GBH 0x0008 4537 #define ZDB_FLAG_INDIRECT 0x0010 4538 #define ZDB_FLAG_PHYS 0x0020 4539 #define ZDB_FLAG_RAW 0x0040 4540 #define ZDB_FLAG_PRINT_BLKPTR 0x0080 4541 4542 static int flagbits[256]; 4543 4544 static void 4545 zdb_print_blkptr(blkptr_t *bp, int flags) 4546 { 4547 char blkbuf[BP_SPRINTF_LEN]; 4548 4549 if (flags & ZDB_FLAG_BSWAP) 4550 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 4551 4552 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 4553 (void) printf("%s\n", blkbuf); 4554 } 4555 4556 static void 4557 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 4558 { 4559 int i; 4560 4561 for (i = 0; i < nbps; i++) 4562 zdb_print_blkptr(&bp[i], flags); 4563 } 4564 4565 static void 4566 zdb_dump_gbh(void *buf, int flags) 4567 { 4568 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 4569 } 4570 4571 static void 4572 zdb_dump_block_raw(void *buf, uint64_t size, int flags) 4573 { 4574 if (flags & ZDB_FLAG_BSWAP) 4575 byteswap_uint64_array(buf, size); 4576 (void) write(1, buf, size); 4577 } 4578 4579 static void 4580 zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 4581 { 4582 uint64_t *d = (uint64_t *)buf; 4583 unsigned nwords = size / sizeof (uint64_t); 4584 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 4585 unsigned i, j; 4586 const char *hdr; 4587 char *c; 4588 4589 4590 if (do_bswap) 4591 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 4592 else 4593 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 4594 4595 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 4596 4597 for (i = 0; i < nwords; i += 2) { 4598 (void) printf("%06llx: %016llx %016llx ", 4599 (u_longlong_t)(i * sizeof (uint64_t)), 4600 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 4601 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 4602 4603 c = (char *)&d[i]; 4604 for (j = 0; j < 2 * sizeof (uint64_t); j++) 4605 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 4606 (void) printf("\n"); 4607 } 4608 } 4609 4610 /* 4611 * There are two acceptable formats: 4612 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 4613 * child[.child]* - For example: 0.1.1 4614 * 4615 * The second form can be used to specify arbitrary vdevs anywhere 4616 * in the heirarchy. For example, in a pool with a mirror of 4617 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 4618 */ 4619 static vdev_t * 4620 zdb_vdev_lookup(vdev_t *vdev, const char *path) 4621 { 4622 char *s, *p, *q; 4623 unsigned i; 4624 4625 if (vdev == NULL) 4626 return (NULL); 4627 4628 /* First, assume the x.x.x.x format */ 4629 i = strtoul(path, &s, 10); 4630 if (s == path || (s && *s != '.' && *s != '\0')) 4631 goto name; 4632 if (i >= vdev->vdev_children) 4633 return (NULL); 4634 4635 vdev = vdev->vdev_child[i]; 4636 if (*s == '\0') 4637 return (vdev); 4638 return (zdb_vdev_lookup(vdev, s+1)); 4639 4640 name: 4641 for (i = 0; i < vdev->vdev_children; i++) { 4642 vdev_t *vc = vdev->vdev_child[i]; 4643 4644 if (vc->vdev_path == NULL) { 4645 vc = zdb_vdev_lookup(vc, path); 4646 if (vc == NULL) 4647 continue; 4648 else 4649 return (vc); 4650 } 4651 4652 p = strrchr(vc->vdev_path, '/'); 4653 p = p ? p + 1 : vc->vdev_path; 4654 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 4655 4656 if (strcmp(vc->vdev_path, path) == 0) 4657 return (vc); 4658 if (strcmp(p, path) == 0) 4659 return (vc); 4660 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 4661 return (vc); 4662 } 4663 4664 return (NULL); 4665 } 4666 4667 /* ARGSUSED */ 4668 static int 4669 random_get_pseudo_bytes_cb(void *buf, size_t len, void *unused) 4670 { 4671 return (random_get_pseudo_bytes(buf, len)); 4672 } 4673 4674 /* 4675 * Read a block from a pool and print it out. The syntax of the 4676 * block descriptor is: 4677 * 4678 * pool:vdev_specifier:offset:size[:flags] 4679 * 4680 * pool - The name of the pool you wish to read from 4681 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 4682 * offset - offset, in hex, in bytes 4683 * size - Amount of data to read, in hex, in bytes 4684 * flags - A string of characters specifying options 4685 * b: Decode a blkptr at given offset within block 4686 * *c: Calculate and display checksums 4687 * d: Decompress data before dumping 4688 * e: Byteswap data before dumping 4689 * g: Display data as a gang block header 4690 * i: Display as an indirect block 4691 * p: Do I/O to physical offset 4692 * r: Dump raw data to stdout 4693 * 4694 * * = not yet implemented 4695 */ 4696 static void 4697 zdb_read_block(char *thing, spa_t *spa) 4698 { 4699 blkptr_t blk, *bp = &blk; 4700 dva_t *dva = bp->blk_dva; 4701 int flags = 0; 4702 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 4703 zio_t *zio; 4704 vdev_t *vd; 4705 abd_t *pabd; 4706 void *lbuf, *buf; 4707 const char *s, *vdev; 4708 char *p, *dup, *flagstr; 4709 int i, error; 4710 4711 dup = strdup(thing); 4712 s = strtok(dup, ":"); 4713 vdev = s ? s : ""; 4714 s = strtok(NULL, ":"); 4715 offset = strtoull(s ? s : "", NULL, 16); 4716 s = strtok(NULL, ":"); 4717 size = strtoull(s ? s : "", NULL, 16); 4718 s = strtok(NULL, ":"); 4719 if (s) 4720 flagstr = strdup(s); 4721 else 4722 flagstr = strdup(""); 4723 4724 s = NULL; 4725 if (size == 0) 4726 s = "size must not be zero"; 4727 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 4728 s = "size must be a multiple of sector size"; 4729 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 4730 s = "offset must be a multiple of sector size"; 4731 if (s) { 4732 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 4733 free(dup); 4734 return; 4735 } 4736 4737 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 4738 for (i = 0; flagstr[i]; i++) { 4739 int bit = flagbits[(uchar_t)flagstr[i]]; 4740 4741 if (bit == 0) { 4742 (void) printf("***Invalid flag: %c\n", 4743 flagstr[i]); 4744 continue; 4745 } 4746 flags |= bit; 4747 4748 /* If it's not something with an argument, keep going */ 4749 if ((bit & (ZDB_FLAG_CHECKSUM | 4750 ZDB_FLAG_PRINT_BLKPTR)) == 0) 4751 continue; 4752 4753 p = &flagstr[i + 1]; 4754 if (bit == ZDB_FLAG_PRINT_BLKPTR) 4755 blkptr_offset = strtoull(p, &p, 16); 4756 if (*p != ':' && *p != '\0') { 4757 (void) printf("***Invalid flag arg: '%s'\n", s); 4758 free(dup); 4759 return; 4760 } 4761 } 4762 } 4763 free(flagstr); 4764 4765 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 4766 if (vd == NULL) { 4767 (void) printf("***Invalid vdev: %s\n", vdev); 4768 free(dup); 4769 return; 4770 } else { 4771 if (vd->vdev_path) 4772 (void) fprintf(stderr, "Found vdev: %s\n", 4773 vd->vdev_path); 4774 else 4775 (void) fprintf(stderr, "Found vdev type: %s\n", 4776 vd->vdev_ops->vdev_op_type); 4777 } 4778 4779 psize = size; 4780 lsize = size; 4781 4782 pabd = abd_alloc_linear(SPA_MAXBLOCKSIZE, B_FALSE); 4783 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 4784 4785 BP_ZERO(bp); 4786 4787 DVA_SET_VDEV(&dva[0], vd->vdev_id); 4788 DVA_SET_OFFSET(&dva[0], offset); 4789 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 4790 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 4791 4792 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 4793 4794 BP_SET_LSIZE(bp, lsize); 4795 BP_SET_PSIZE(bp, psize); 4796 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 4797 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 4798 BP_SET_TYPE(bp, DMU_OT_NONE); 4799 BP_SET_LEVEL(bp, 0); 4800 BP_SET_DEDUP(bp, 0); 4801 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 4802 4803 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 4804 zio = zio_root(spa, NULL, NULL, 0); 4805 4806 if (vd == vd->vdev_top) { 4807 /* 4808 * Treat this as a normal block read. 4809 */ 4810 zio_nowait(zio_read(zio, spa, bp, pabd, psize, NULL, NULL, 4811 ZIO_PRIORITY_SYNC_READ, 4812 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 4813 } else { 4814 /* 4815 * Treat this as a vdev child I/O. 4816 */ 4817 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pabd, 4818 psize, ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 4819 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 4820 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 4821 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW | ZIO_FLAG_OPTIONAL, 4822 NULL, NULL)); 4823 } 4824 4825 error = zio_wait(zio); 4826 spa_config_exit(spa, SCL_STATE, FTAG); 4827 4828 if (error) { 4829 (void) printf("Read of %s failed, error: %d\n", thing, error); 4830 goto out; 4831 } 4832 4833 if (flags & ZDB_FLAG_DECOMPRESS) { 4834 /* 4835 * We don't know how the data was compressed, so just try 4836 * every decompress function at every inflated blocksize. 4837 */ 4838 enum zio_compress c; 4839 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 4840 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 4841 4842 abd_copy_to_buf(pbuf2, pabd, psize); 4843 4844 VERIFY0(abd_iterate_func(pabd, psize, SPA_MAXBLOCKSIZE - psize, 4845 random_get_pseudo_bytes_cb, NULL)); 4846 4847 VERIFY0(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 4848 SPA_MAXBLOCKSIZE - psize)); 4849 4850 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 4851 lsize -= SPA_MINBLOCKSIZE) { 4852 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 4853 if (zio_decompress_data(c, pabd, 4854 lbuf, psize, lsize) == 0 && 4855 zio_decompress_data_buf(c, pbuf2, 4856 lbuf2, psize, lsize) == 0 && 4857 bcmp(lbuf, lbuf2, lsize) == 0) 4858 break; 4859 } 4860 if (c != ZIO_COMPRESS_FUNCTIONS) 4861 break; 4862 lsize -= SPA_MINBLOCKSIZE; 4863 } 4864 4865 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 4866 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 4867 4868 if (lsize <= psize) { 4869 (void) printf("Decompress of %s failed\n", thing); 4870 goto out; 4871 } 4872 buf = lbuf; 4873 size = lsize; 4874 } else { 4875 buf = abd_to_buf(pabd); 4876 size = psize; 4877 } 4878 4879 if (flags & ZDB_FLAG_PRINT_BLKPTR) 4880 zdb_print_blkptr((blkptr_t *)(void *) 4881 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 4882 else if (flags & ZDB_FLAG_RAW) 4883 zdb_dump_block_raw(buf, size, flags); 4884 else if (flags & ZDB_FLAG_INDIRECT) 4885 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 4886 flags); 4887 else if (flags & ZDB_FLAG_GBH) 4888 zdb_dump_gbh(buf, flags); 4889 else 4890 zdb_dump_block(thing, buf, size, flags); 4891 4892 out: 4893 abd_free(pabd); 4894 umem_free(lbuf, SPA_MAXBLOCKSIZE); 4895 free(dup); 4896 } 4897 4898 static void 4899 zdb_embedded_block(char *thing) 4900 { 4901 blkptr_t bp; 4902 unsigned long long *words = (void *)&bp; 4903 char buf[SPA_MAXBLOCKSIZE]; 4904 int err; 4905 4906 bzero(&bp, sizeof (bp)); 4907 err = sscanf(thing, "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx:" 4908 "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx", 4909 words + 0, words + 1, words + 2, words + 3, 4910 words + 4, words + 5, words + 6, words + 7, 4911 words + 8, words + 9, words + 10, words + 11, 4912 words + 12, words + 13, words + 14, words + 15); 4913 if (err != 16) { 4914 (void) printf("invalid input format\n"); 4915 exit(1); 4916 } 4917 ASSERT3U(BPE_GET_LSIZE(&bp), <=, SPA_MAXBLOCKSIZE); 4918 err = decode_embedded_bp(&bp, buf, BPE_GET_LSIZE(&bp)); 4919 if (err != 0) { 4920 (void) printf("decode failed: %u\n", err); 4921 exit(1); 4922 } 4923 zdb_dump_block_raw(buf, BPE_GET_LSIZE(&bp), 0); 4924 } 4925 4926 static boolean_t 4927 pool_match(nvlist_t *cfg, char *tgt) 4928 { 4929 uint64_t v, guid = strtoull(tgt, NULL, 0); 4930 char *s; 4931 4932 if (guid != 0) { 4933 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) 4934 return (v == guid); 4935 } else { 4936 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) 4937 return (strcmp(s, tgt) == 0); 4938 } 4939 return (B_FALSE); 4940 } 4941 4942 static char * 4943 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) 4944 { 4945 nvlist_t *pools; 4946 nvlist_t *match = NULL; 4947 char *name = NULL; 4948 char *sepp = NULL; 4949 char sep = '\0'; 4950 int count = 0; 4951 importargs_t args; 4952 4953 bzero(&args, sizeof (args)); 4954 args.paths = dirc; 4955 args.path = dirv; 4956 args.can_be_active = B_TRUE; 4957 4958 if ((sepp = strpbrk(*target, "/@")) != NULL) { 4959 sep = *sepp; 4960 *sepp = '\0'; 4961 } 4962 4963 pools = zpool_search_import(g_zfs, &args); 4964 4965 if (pools != NULL) { 4966 nvpair_t *elem = NULL; 4967 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 4968 verify(nvpair_value_nvlist(elem, configp) == 0); 4969 if (pool_match(*configp, *target)) { 4970 count++; 4971 if (match != NULL) { 4972 /* print previously found config */ 4973 if (name != NULL) { 4974 (void) printf("%s\n", name); 4975 dump_nvlist(match, 8); 4976 name = NULL; 4977 } 4978 (void) printf("%s\n", 4979 nvpair_name(elem)); 4980 dump_nvlist(*configp, 8); 4981 } else { 4982 match = *configp; 4983 name = nvpair_name(elem); 4984 } 4985 } 4986 } 4987 } 4988 if (count > 1) 4989 (void) fatal("\tMatched %d pools - use pool GUID " 4990 "instead of pool name or \n" 4991 "\tpool name part of a dataset name to select pool", count); 4992 4993 if (sepp) 4994 *sepp = sep; 4995 /* 4996 * If pool GUID was specified for pool id, replace it with pool name 4997 */ 4998 if (name && (strstr(*target, name) != *target)) { 4999 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); 5000 5001 *target = umem_alloc(sz, UMEM_NOFAIL); 5002 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); 5003 } 5004 5005 *configp = name ? match : NULL; 5006 5007 return (name); 5008 } 5009 5010 int 5011 main(int argc, char **argv) 5012 { 5013 int c; 5014 struct rlimit rl = { 1024, 1024 }; 5015 spa_t *spa = NULL; 5016 objset_t *os = NULL; 5017 int dump_all = 1; 5018 int verbose = 0; 5019 int error = 0; 5020 char **searchdirs = NULL; 5021 int nsearch = 0; 5022 char *target; 5023 nvlist_t *policy = NULL; 5024 uint64_t max_txg = UINT64_MAX; 5025 int flags = ZFS_IMPORT_MISSING_LOG; 5026 int rewind = ZPOOL_NEVER_REWIND; 5027 char *spa_config_path_env; 5028 boolean_t target_is_spa = B_TRUE; 5029 nvlist_t *cfg = NULL; 5030 5031 (void) setrlimit(RLIMIT_NOFILE, &rl); 5032 (void) enable_extended_FILE_stdio(-1, -1); 5033 5034 dprintf_setup(&argc, argv); 5035 5036 /* 5037 * If there is an environment variable SPA_CONFIG_PATH it overrides 5038 * default spa_config_path setting. If -U flag is specified it will 5039 * override this environment variable settings once again. 5040 */ 5041 spa_config_path_env = getenv("SPA_CONFIG_PATH"); 5042 if (spa_config_path_env != NULL) 5043 spa_config_path = spa_config_path_env; 5044 5045 while ((c = getopt(argc, argv, 5046 "AbcCdDeEFGhiI:klLmMo:Op:PqRsSt:uU:vVx:X")) != -1) { 5047 switch (c) { 5048 case 'b': 5049 case 'c': 5050 case 'C': 5051 case 'd': 5052 case 'D': 5053 case 'E': 5054 case 'G': 5055 case 'h': 5056 case 'i': 5057 case 'l': 5058 case 'm': 5059 case 'M': 5060 case 'O': 5061 case 'R': 5062 case 's': 5063 case 'S': 5064 case 'u': 5065 dump_opt[c]++; 5066 dump_all = 0; 5067 break; 5068 case 'A': 5069 case 'e': 5070 case 'F': 5071 case 'k': 5072 case 'L': 5073 case 'P': 5074 case 'q': 5075 case 'X': 5076 dump_opt[c]++; 5077 break; 5078 /* NB: Sort single match options below. */ 5079 case 'I': 5080 max_inflight = strtoull(optarg, NULL, 0); 5081 if (max_inflight == 0) { 5082 (void) fprintf(stderr, "maximum number " 5083 "of inflight I/Os must be greater " 5084 "than 0\n"); 5085 usage(); 5086 } 5087 break; 5088 case 'o': 5089 error = set_global_var(optarg); 5090 if (error != 0) 5091 usage(); 5092 break; 5093 case 'p': 5094 if (searchdirs == NULL) { 5095 searchdirs = umem_alloc(sizeof (char *), 5096 UMEM_NOFAIL); 5097 } else { 5098 char **tmp = umem_alloc((nsearch + 1) * 5099 sizeof (char *), UMEM_NOFAIL); 5100 bcopy(searchdirs, tmp, nsearch * 5101 sizeof (char *)); 5102 umem_free(searchdirs, 5103 nsearch * sizeof (char *)); 5104 searchdirs = tmp; 5105 } 5106 searchdirs[nsearch++] = optarg; 5107 break; 5108 case 't': 5109 max_txg = strtoull(optarg, NULL, 0); 5110 if (max_txg < TXG_INITIAL) { 5111 (void) fprintf(stderr, "incorrect txg " 5112 "specified: %s\n", optarg); 5113 usage(); 5114 } 5115 break; 5116 case 'U': 5117 spa_config_path = optarg; 5118 if (spa_config_path[0] != '/') { 5119 (void) fprintf(stderr, 5120 "cachefile must be an absolute path " 5121 "(i.e. start with a slash)\n"); 5122 usage(); 5123 } 5124 break; 5125 case 'v': 5126 verbose++; 5127 break; 5128 case 'V': 5129 flags = ZFS_IMPORT_VERBATIM; 5130 break; 5131 case 'x': 5132 vn_dumpdir = optarg; 5133 break; 5134 default: 5135 usage(); 5136 break; 5137 } 5138 } 5139 5140 if (!dump_opt['e'] && searchdirs != NULL) { 5141 (void) fprintf(stderr, "-p option requires use of -e\n"); 5142 usage(); 5143 } 5144 5145 /* 5146 * ZDB does not typically re-read blocks; therefore limit the ARC 5147 * to 256 MB, which can be used entirely for metadata. 5148 */ 5149 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024; 5150 5151 /* 5152 * "zdb -c" uses checksum-verifying scrub i/os which are async reads. 5153 * "zdb -b" uses traversal prefetch which uses async reads. 5154 * For good performance, let several of them be active at once. 5155 */ 5156 zfs_vdev_async_read_max_active = 10; 5157 5158 /* 5159 * Disable reference tracking for better performance. 5160 */ 5161 reference_tracking_enable = B_FALSE; 5162 5163 /* 5164 * Do not fail spa_load when spa_load_verify fails. This is needed 5165 * to load non-idle pools. 5166 */ 5167 spa_load_verify_dryrun = B_TRUE; 5168 5169 kernel_init(FREAD); 5170 g_zfs = libzfs_init(); 5171 ASSERT(g_zfs != NULL); 5172 5173 if (dump_all) 5174 verbose = MAX(verbose, 1); 5175 5176 for (c = 0; c < 256; c++) { 5177 if (dump_all && strchr("AeEFklLOPRSX", c) == NULL) 5178 dump_opt[c] = 1; 5179 if (dump_opt[c]) 5180 dump_opt[c] += verbose; 5181 } 5182 5183 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 5184 zfs_recover = (dump_opt['A'] > 1); 5185 5186 argc -= optind; 5187 argv += optind; 5188 5189 if (argc < 2 && dump_opt['R']) 5190 usage(); 5191 5192 if (dump_opt['E']) { 5193 if (argc != 1) 5194 usage(); 5195 zdb_embedded_block(argv[0]); 5196 return (0); 5197 } 5198 5199 if (argc < 1) { 5200 if (!dump_opt['e'] && dump_opt['C']) { 5201 dump_cachefile(spa_config_path); 5202 return (0); 5203 } 5204 usage(); 5205 } 5206 5207 if (dump_opt['l']) 5208 return (dump_label(argv[0])); 5209 5210 if (dump_opt['O']) { 5211 if (argc != 2) 5212 usage(); 5213 dump_opt['v'] = verbose + 3; 5214 return (dump_path(argv[0], argv[1])); 5215 } 5216 5217 if (dump_opt['X'] || dump_opt['F']) 5218 rewind = ZPOOL_DO_REWIND | 5219 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 5220 5221 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 5222 nvlist_add_uint64(policy, ZPOOL_LOAD_REQUEST_TXG, max_txg) != 0 || 5223 nvlist_add_uint32(policy, ZPOOL_LOAD_REWIND_POLICY, rewind) != 0) 5224 fatal("internal error: %s", strerror(ENOMEM)); 5225 5226 error = 0; 5227 target = argv[0]; 5228 5229 if (dump_opt['e']) { 5230 char *name = find_zpool(&target, &cfg, nsearch, searchdirs); 5231 5232 error = ENOENT; 5233 if (name) { 5234 if (dump_opt['C'] > 1) { 5235 (void) printf("\nConfiguration for import:\n"); 5236 dump_nvlist(cfg, 8); 5237 } 5238 5239 if (nvlist_add_nvlist(cfg, 5240 ZPOOL_LOAD_POLICY, policy) != 0) { 5241 fatal("can't open '%s': %s", 5242 target, strerror(ENOMEM)); 5243 } 5244 error = spa_import(name, cfg, NULL, flags); 5245 } 5246 } 5247 5248 char *checkpoint_pool = NULL; 5249 char *checkpoint_target = NULL; 5250 if (dump_opt['k']) { 5251 checkpoint_pool = import_checkpointed_state(target, cfg, 5252 &checkpoint_target); 5253 5254 if (checkpoint_target != NULL) 5255 target = checkpoint_target; 5256 5257 } 5258 5259 if (strpbrk(target, "/@") != NULL) { 5260 size_t targetlen; 5261 5262 target_is_spa = B_FALSE; 5263 /* 5264 * Remove any trailing slash. Later code would get confused 5265 * by it, but we want to allow it so that "pool/" can 5266 * indicate that we want to dump the topmost filesystem, 5267 * rather than the whole pool. 5268 */ 5269 targetlen = strlen(target); 5270 if (targetlen != 0 && target[targetlen - 1] == '/') 5271 target[targetlen - 1] = '\0'; 5272 } 5273 5274 if (error == 0) { 5275 if (dump_opt['k'] && (target_is_spa || dump_opt['R'])) { 5276 ASSERT(checkpoint_pool != NULL); 5277 ASSERT(checkpoint_target == NULL); 5278 5279 error = spa_open(checkpoint_pool, &spa, FTAG); 5280 if (error != 0) { 5281 fatal("Tried to open pool \"%s\" but " 5282 "spa_open() failed with error %d\n", 5283 checkpoint_pool, error); 5284 } 5285 5286 } else if (target_is_spa || dump_opt['R']) { 5287 error = spa_open_rewind(target, &spa, FTAG, policy, 5288 NULL); 5289 if (error) { 5290 /* 5291 * If we're missing the log device then 5292 * try opening the pool after clearing the 5293 * log state. 5294 */ 5295 mutex_enter(&spa_namespace_lock); 5296 if ((spa = spa_lookup(target)) != NULL && 5297 spa->spa_log_state == SPA_LOG_MISSING) { 5298 spa->spa_log_state = SPA_LOG_CLEAR; 5299 error = 0; 5300 } 5301 mutex_exit(&spa_namespace_lock); 5302 5303 if (!error) { 5304 error = spa_open_rewind(target, &spa, 5305 FTAG, policy, NULL); 5306 } 5307 } 5308 } else { 5309 error = open_objset(target, DMU_OST_ANY, FTAG, &os); 5310 } 5311 } 5312 nvlist_free(policy); 5313 5314 if (error) 5315 fatal("can't open '%s': %s", target, strerror(error)); 5316 5317 argv++; 5318 argc--; 5319 if (!dump_opt['R']) { 5320 if (argc > 0) { 5321 zopt_objects = argc; 5322 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 5323 for (unsigned i = 0; i < zopt_objects; i++) { 5324 errno = 0; 5325 zopt_object[i] = strtoull(argv[i], NULL, 0); 5326 if (zopt_object[i] == 0 && errno != 0) 5327 fatal("bad number %s: %s", 5328 argv[i], strerror(errno)); 5329 } 5330 } 5331 if (os != NULL) { 5332 dump_dir(os); 5333 } else if (zopt_objects > 0 && !dump_opt['m']) { 5334 dump_dir(spa->spa_meta_objset); 5335 } else { 5336 dump_zpool(spa); 5337 } 5338 } else { 5339 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 5340 flagbits['c'] = ZDB_FLAG_CHECKSUM; 5341 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 5342 flagbits['e'] = ZDB_FLAG_BSWAP; 5343 flagbits['g'] = ZDB_FLAG_GBH; 5344 flagbits['i'] = ZDB_FLAG_INDIRECT; 5345 flagbits['p'] = ZDB_FLAG_PHYS; 5346 flagbits['r'] = ZDB_FLAG_RAW; 5347 5348 for (int i = 0; i < argc; i++) 5349 zdb_read_block(argv[i], spa); 5350 } 5351 5352 if (dump_opt['k']) { 5353 free(checkpoint_pool); 5354 if (!target_is_spa) 5355 free(checkpoint_target); 5356 } 5357 5358 if (os != NULL) 5359 close_objset(os, FTAG); 5360 else 5361 spa_close(spa, FTAG); 5362 5363 fuid_table_destroy(); 5364 5365 dump_debug_buffer(); 5366 5367 libzfs_fini(g_zfs); 5368 kernel_fini(); 5369 5370 return (0); 5371 } 5372