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 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #include <stdio.h> 27 #include <stdio_ext.h> 28 #include <stdlib.h> 29 #include <ctype.h> 30 #include <sys/zfs_context.h> 31 #include <sys/spa.h> 32 #include <sys/spa_impl.h> 33 #include <sys/dmu.h> 34 #include <sys/zap.h> 35 #include <sys/fs/zfs.h> 36 #include <sys/zfs_znode.h> 37 #include <sys/vdev.h> 38 #include <sys/vdev_impl.h> 39 #include <sys/metaslab_impl.h> 40 #include <sys/dmu_objset.h> 41 #include <sys/dsl_dir.h> 42 #include <sys/dsl_dataset.h> 43 #include <sys/dsl_pool.h> 44 #include <sys/dbuf.h> 45 #include <sys/zil.h> 46 #include <sys/zil_impl.h> 47 #include <sys/stat.h> 48 #include <sys/resource.h> 49 #include <sys/dmu_traverse.h> 50 #include <sys/zio_checksum.h> 51 #include <sys/zio_compress.h> 52 #include <sys/zfs_fuid.h> 53 #include <sys/arc.h> 54 #include <sys/ddt.h> 55 #undef ZFS_MAXNAMELEN 56 #undef verify 57 #include <libzfs.h> 58 59 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \ 60 zio_compress_table[(idx)].ci_name : "UNKNOWN") 61 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \ 62 zio_checksum_table[(idx)].ci_name : "UNKNOWN") 63 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \ 64 dmu_ot[(idx)].ot_name : "UNKNOWN") 65 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : DMU_OT_NUMTYPES) 66 67 const char cmdname[] = "zdb"; 68 uint8_t dump_opt[256]; 69 70 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size); 71 72 extern void dump_intent_log(zilog_t *); 73 uint64_t *zopt_object = NULL; 74 int zopt_objects = 0; 75 libzfs_handle_t *g_zfs; 76 77 /* 78 * These libumem hooks provide a reasonable set of defaults for the allocator's 79 * debugging facilities. 80 */ 81 const char * 82 _umem_debug_init() 83 { 84 return ("default,verbose"); /* $UMEM_DEBUG setting */ 85 } 86 87 const char * 88 _umem_logging_init(void) 89 { 90 return ("fail,contents"); /* $UMEM_LOGGING setting */ 91 } 92 93 static void 94 usage(void) 95 { 96 (void) fprintf(stderr, 97 "Usage: %s [-CumdibcsvhL] " 98 "poolname [object...]\n" 99 " %s [-div] dataset [object...]\n" 100 " %s -m [-L] poolname [vdev [metaslab...]]\n" 101 " %s -R poolname vdev:offset:size[:flags]\n" 102 " %s -S poolname\n" 103 " %s -l device\n" 104 " %s -C\n\n", 105 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname); 106 107 (void) fprintf(stderr, " Dataset name must include at least one " 108 "separator character '/' or '@'\n"); 109 (void) fprintf(stderr, " If dataset name is specified, only that " 110 "dataset is dumped\n"); 111 (void) fprintf(stderr, " If object numbers are specified, only " 112 "those objects are dumped\n\n"); 113 (void) fprintf(stderr, " Options to control amount of output:\n"); 114 (void) fprintf(stderr, " -u uberblock\n"); 115 (void) fprintf(stderr, " -d dataset(s)\n"); 116 (void) fprintf(stderr, " -i intent logs\n"); 117 (void) fprintf(stderr, " -C config (or cachefile if alone)\n"); 118 (void) fprintf(stderr, " -h pool history\n"); 119 (void) fprintf(stderr, " -b block statistics\n"); 120 (void) fprintf(stderr, " -m metaslabs\n"); 121 (void) fprintf(stderr, " -c checksum all metadata (twice for " 122 "all data) blocks\n"); 123 (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); 124 (void) fprintf(stderr, " -S simulate dedup to measure effect\n"); 125 (void) fprintf(stderr, " -v verbose (applies to all others)\n"); 126 (void) fprintf(stderr, " -l dump label contents\n"); 127 (void) fprintf(stderr, " -L disable leak tracking (do not " 128 "load spacemaps)\n"); 129 (void) fprintf(stderr, " -R read and display block from a " 130 "device\n\n"); 131 (void) fprintf(stderr, " Below options are intended for use " 132 "with other options (except -l):\n"); 133 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate " 134 "cachefile\n"); 135 (void) fprintf(stderr, " -e pool is exported/destroyed/" 136 "has altroot/not in a cachefile\n"); 137 (void) fprintf(stderr, " -p <path> -- use one or more with " 138 "-e to specify path to vdev dir\n"); 139 (void) fprintf(stderr, " -t <txg> -- highest txg to use when " 140 "searching for uberblocks\n"); 141 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 142 "to make only that option verbose\n"); 143 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 144 exit(1); 145 } 146 147 /* 148 * Called for usage errors that are discovered after a call to spa_open(), 149 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. 150 */ 151 152 static void 153 fatal(const char *fmt, ...) 154 { 155 va_list ap; 156 157 va_start(ap, fmt); 158 (void) fprintf(stderr, "%s: ", cmdname); 159 (void) vfprintf(stderr, fmt, ap); 160 va_end(ap); 161 (void) fprintf(stderr, "\n"); 162 163 exit(1); 164 } 165 166 /* ARGSUSED */ 167 static void 168 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 169 { 170 nvlist_t *nv; 171 size_t nvsize = *(uint64_t *)data; 172 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 173 174 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH)); 175 176 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 177 178 umem_free(packed, nvsize); 179 180 dump_nvlist(nv, 8); 181 182 nvlist_free(nv); 183 } 184 185 const char dump_zap_stars[] = "****************************************"; 186 const int dump_zap_width = sizeof (dump_zap_stars) - 1; 187 188 static void 189 dump_zap_histogram(uint64_t histo[ZAP_HISTOGRAM_SIZE]) 190 { 191 int i; 192 int minidx = ZAP_HISTOGRAM_SIZE - 1; 193 int maxidx = 0; 194 uint64_t max = 0; 195 196 for (i = 0; i < ZAP_HISTOGRAM_SIZE; i++) { 197 if (histo[i] > max) 198 max = histo[i]; 199 if (histo[i] > 0 && i > maxidx) 200 maxidx = i; 201 if (histo[i] > 0 && i < minidx) 202 minidx = i; 203 } 204 205 if (max < dump_zap_width) 206 max = dump_zap_width; 207 208 for (i = minidx; i <= maxidx; i++) 209 (void) printf("\t\t\t%u: %6llu %s\n", i, (u_longlong_t)histo[i], 210 &dump_zap_stars[(max - histo[i]) * dump_zap_width / max]); 211 } 212 213 static void 214 dump_zap_stats(objset_t *os, uint64_t object) 215 { 216 int error; 217 zap_stats_t zs; 218 219 error = zap_get_stats(os, object, &zs); 220 if (error) 221 return; 222 223 if (zs.zs_ptrtbl_len == 0) { 224 ASSERT(zs.zs_num_blocks == 1); 225 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 226 (u_longlong_t)zs.zs_blocksize, 227 (u_longlong_t)zs.zs_num_entries); 228 return; 229 } 230 231 (void) printf("\tFat ZAP stats:\n"); 232 233 (void) printf("\t\tPointer table:\n"); 234 (void) printf("\t\t\t%llu elements\n", 235 (u_longlong_t)zs.zs_ptrtbl_len); 236 (void) printf("\t\t\tzt_blk: %llu\n", 237 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 238 (void) printf("\t\t\tzt_numblks: %llu\n", 239 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 240 (void) printf("\t\t\tzt_shift: %llu\n", 241 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 242 (void) printf("\t\t\tzt_blks_copied: %llu\n", 243 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 244 (void) printf("\t\t\tzt_nextblk: %llu\n", 245 (u_longlong_t)zs.zs_ptrtbl_nextblk); 246 247 (void) printf("\t\tZAP entries: %llu\n", 248 (u_longlong_t)zs.zs_num_entries); 249 (void) printf("\t\tLeaf blocks: %llu\n", 250 (u_longlong_t)zs.zs_num_leafs); 251 (void) printf("\t\tTotal blocks: %llu\n", 252 (u_longlong_t)zs.zs_num_blocks); 253 (void) printf("\t\tzap_block_type: 0x%llx\n", 254 (u_longlong_t)zs.zs_block_type); 255 (void) printf("\t\tzap_magic: 0x%llx\n", 256 (u_longlong_t)zs.zs_magic); 257 (void) printf("\t\tzap_salt: 0x%llx\n", 258 (u_longlong_t)zs.zs_salt); 259 260 (void) printf("\t\tLeafs with 2^n pointers:\n"); 261 dump_zap_histogram(zs.zs_leafs_with_2n_pointers); 262 263 (void) printf("\t\tBlocks with n*5 entries:\n"); 264 dump_zap_histogram(zs.zs_blocks_with_n5_entries); 265 266 (void) printf("\t\tBlocks n/10 full:\n"); 267 dump_zap_histogram(zs.zs_blocks_n_tenths_full); 268 269 (void) printf("\t\tEntries with n chunks:\n"); 270 dump_zap_histogram(zs.zs_entries_using_n_chunks); 271 272 (void) printf("\t\tBuckets with n entries:\n"); 273 dump_zap_histogram(zs.zs_buckets_with_n_entries); 274 } 275 276 /*ARGSUSED*/ 277 static void 278 dump_none(objset_t *os, uint64_t object, void *data, size_t size) 279 { 280 } 281 282 /*ARGSUSED*/ 283 static void 284 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size) 285 { 286 (void) printf("\tUNKNOWN OBJECT TYPE\n"); 287 } 288 289 /*ARGSUSED*/ 290 void 291 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 292 { 293 } 294 295 /*ARGSUSED*/ 296 static void 297 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 298 { 299 } 300 301 /*ARGSUSED*/ 302 static void 303 dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 304 { 305 zap_cursor_t zc; 306 zap_attribute_t attr; 307 void *prop; 308 int i; 309 310 dump_zap_stats(os, object); 311 (void) printf("\n"); 312 313 for (zap_cursor_init(&zc, os, object); 314 zap_cursor_retrieve(&zc, &attr) == 0; 315 zap_cursor_advance(&zc)) { 316 (void) printf("\t\t%s = ", attr.za_name); 317 if (attr.za_num_integers == 0) { 318 (void) printf("\n"); 319 continue; 320 } 321 prop = umem_zalloc(attr.za_num_integers * 322 attr.za_integer_length, UMEM_NOFAIL); 323 (void) zap_lookup(os, object, attr.za_name, 324 attr.za_integer_length, attr.za_num_integers, prop); 325 if (attr.za_integer_length == 1) { 326 (void) printf("%s", (char *)prop); 327 } else { 328 for (i = 0; i < attr.za_num_integers; i++) { 329 switch (attr.za_integer_length) { 330 case 2: 331 (void) printf("%u ", 332 ((uint16_t *)prop)[i]); 333 break; 334 case 4: 335 (void) printf("%u ", 336 ((uint32_t *)prop)[i]); 337 break; 338 case 8: 339 (void) printf("%lld ", 340 (u_longlong_t)((int64_t *)prop)[i]); 341 break; 342 } 343 } 344 } 345 (void) printf("\n"); 346 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 347 } 348 zap_cursor_fini(&zc); 349 } 350 351 /*ARGSUSED*/ 352 static void 353 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 354 { 355 zap_cursor_t zc; 356 zap_attribute_t attr; 357 const char *typenames[] = { 358 /* 0 */ "not specified", 359 /* 1 */ "FIFO", 360 /* 2 */ "Character Device", 361 /* 3 */ "3 (invalid)", 362 /* 4 */ "Directory", 363 /* 5 */ "5 (invalid)", 364 /* 6 */ "Block Device", 365 /* 7 */ "7 (invalid)", 366 /* 8 */ "Regular File", 367 /* 9 */ "9 (invalid)", 368 /* 10 */ "Symbolic Link", 369 /* 11 */ "11 (invalid)", 370 /* 12 */ "Socket", 371 /* 13 */ "Door", 372 /* 14 */ "Event Port", 373 /* 15 */ "15 (invalid)", 374 }; 375 376 dump_zap_stats(os, object); 377 (void) printf("\n"); 378 379 for (zap_cursor_init(&zc, os, object); 380 zap_cursor_retrieve(&zc, &attr) == 0; 381 zap_cursor_advance(&zc)) { 382 (void) printf("\t\t%s = %lld (type: %s)\n", 383 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 384 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 385 } 386 zap_cursor_fini(&zc); 387 } 388 389 static void 390 dump_spacemap(objset_t *os, space_map_obj_t *smo, space_map_t *sm) 391 { 392 uint64_t alloc, offset, entry; 393 uint8_t mapshift = sm->sm_shift; 394 uint64_t mapstart = sm->sm_start; 395 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 396 "INVALID", "INVALID", "INVALID", "INVALID" }; 397 398 if (smo->smo_object == 0) 399 return; 400 401 /* 402 * Print out the freelist entries in both encoded and decoded form. 403 */ 404 alloc = 0; 405 for (offset = 0; offset < smo->smo_objsize; offset += sizeof (entry)) { 406 VERIFY(0 == dmu_read(os, smo->smo_object, offset, 407 sizeof (entry), &entry, DMU_READ_PREFETCH)); 408 if (SM_DEBUG_DECODE(entry)) { 409 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n", 410 (u_longlong_t)(offset / sizeof (entry)), 411 ddata[SM_DEBUG_ACTION_DECODE(entry)], 412 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry), 413 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry)); 414 } else { 415 (void) printf("\t [%6llu] %c range:" 416 " %010llx-%010llx size: %06llx\n", 417 (u_longlong_t)(offset / sizeof (entry)), 418 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 419 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 420 mapshift) + mapstart), 421 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 422 mapshift) + mapstart + (SM_RUN_DECODE(entry) << 423 mapshift)), 424 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift)); 425 if (SM_TYPE_DECODE(entry) == SM_ALLOC) 426 alloc += SM_RUN_DECODE(entry) << mapshift; 427 else 428 alloc -= SM_RUN_DECODE(entry) << mapshift; 429 } 430 } 431 if (alloc != smo->smo_alloc) { 432 (void) printf("space_map_object alloc (%llu) INCONSISTENT " 433 "with space map summary (%llu)\n", 434 (u_longlong_t)smo->smo_alloc, (u_longlong_t)alloc); 435 } 436 } 437 438 static void 439 dump_metaslab_stats(metaslab_t *msp) 440 { 441 char maxbuf[5]; 442 space_map_t *sm = &msp->ms_map; 443 avl_tree_t *t = sm->sm_pp_root; 444 int free_pct = sm->sm_space * 100 / sm->sm_size; 445 446 nicenum(space_map_maxsize(sm), maxbuf); 447 448 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", 449 "segments", avl_numnodes(t), "maxsize", maxbuf, 450 "freepct", free_pct); 451 } 452 453 static void 454 dump_metaslab(metaslab_t *msp) 455 { 456 vdev_t *vd = msp->ms_group->mg_vd; 457 spa_t *spa = vd->vdev_spa; 458 space_map_t *sm = &msp->ms_map; 459 space_map_obj_t *smo = &msp->ms_smo; 460 char freebuf[5]; 461 462 nicenum(sm->sm_size - smo->smo_alloc, freebuf); 463 464 (void) printf( 465 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", 466 (u_longlong_t)(sm->sm_start / sm->sm_size), 467 (u_longlong_t)sm->sm_start, (u_longlong_t)smo->smo_object, freebuf); 468 469 if (dump_opt['m'] > 1 && !dump_opt['L']) { 470 mutex_enter(&msp->ms_lock); 471 space_map_load_wait(sm); 472 if (!sm->sm_loaded && 473 (smo->smo_object != 0 || dump_opt['m'] > 2)) { 474 VERIFY(space_map_load(sm, zfs_metaslab_ops, 475 SM_FREE, smo, spa->spa_meta_objset) == 0); 476 dump_metaslab_stats(msp); 477 space_map_unload(sm); 478 } 479 mutex_exit(&msp->ms_lock); 480 } 481 482 if (dump_opt['d'] > 5 || dump_opt['m'] > 2) { 483 ASSERT(sm->sm_size == (1ULL << vd->vdev_ms_shift)); 484 485 mutex_enter(&msp->ms_lock); 486 dump_spacemap(spa->spa_meta_objset, smo, sm); 487 mutex_exit(&msp->ms_lock); 488 } 489 } 490 491 static void 492 print_vdev_metaslab_header(vdev_t *vd) 493 { 494 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n", 495 (u_longlong_t)vd->vdev_id, 496 "metaslabs", (u_longlong_t)vd->vdev_ms_count, 497 "offset", "spacemap", "free"); 498 (void) printf("\t%15s %19s %15s %10s\n", 499 "---------------", "-------------------", 500 "---------------", "-------------"); 501 } 502 503 static void 504 dump_metaslabs(spa_t *spa) 505 { 506 vdev_t *vd, *rvd = spa->spa_root_vdev; 507 uint64_t m, c = 0, children = rvd->vdev_children; 508 509 (void) printf("\nMetaslabs:\n"); 510 511 if (!dump_opt['d'] && zopt_objects > 0) { 512 c = zopt_object[0]; 513 514 if (c >= children) 515 (void) fatal("bad vdev id: %llu", (u_longlong_t)c); 516 517 if (zopt_objects > 1) { 518 vd = rvd->vdev_child[c]; 519 print_vdev_metaslab_header(vd); 520 521 for (m = 1; m < zopt_objects; m++) { 522 if (zopt_object[m] < vd->vdev_ms_count) 523 dump_metaslab( 524 vd->vdev_ms[zopt_object[m]]); 525 else 526 (void) fprintf(stderr, "bad metaslab " 527 "number %llu\n", 528 (u_longlong_t)zopt_object[m]); 529 } 530 (void) printf("\n"); 531 return; 532 } 533 children = c + 1; 534 } 535 for (; c < children; c++) { 536 vd = rvd->vdev_child[c]; 537 print_vdev_metaslab_header(vd); 538 539 for (m = 0; m < vd->vdev_ms_count; m++) 540 dump_metaslab(vd->vdev_ms[m]); 541 (void) printf("\n"); 542 } 543 } 544 545 static void 546 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) 547 { 548 const ddt_phys_t *ddp = dde->dde_phys; 549 const ddt_key_t *ddk = &dde->dde_key; 550 char *types[4] = { "ditto", "single", "double", "triple" }; 551 char blkbuf[BP_SPRINTF_LEN]; 552 blkptr_t blk; 553 554 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 555 if (ddp->ddp_phys_birth == 0) 556 continue; 557 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); 558 sprintf_blkptr(blkbuf, &blk); 559 (void) printf("index %llx refcnt %llu %s %s\n", 560 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, 561 types[p], blkbuf); 562 } 563 } 564 565 static void 566 dump_dedup_ratio(const ddt_stat_t *dds) 567 { 568 double rL, rP, rD, D, dedup, compress, copies; 569 570 if (dds->dds_blocks == 0) 571 return; 572 573 rL = (double)dds->dds_ref_lsize; 574 rP = (double)dds->dds_ref_psize; 575 rD = (double)dds->dds_ref_dsize; 576 D = (double)dds->dds_dsize; 577 578 dedup = rD / D; 579 compress = rL / rP; 580 copies = rD / rP; 581 582 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " 583 "dedup * compress / copies = %.2f\n\n", 584 dedup, compress, copies, dedup * compress / copies); 585 } 586 587 static void 588 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class) 589 { 590 char name[DDT_NAMELEN]; 591 ddt_entry_t dde; 592 uint64_t walk = 0; 593 dmu_object_info_t doi; 594 uint64_t count, dspace, mspace; 595 int error; 596 597 error = ddt_object_info(ddt, type, class, &doi); 598 599 if (error == ENOENT) 600 return; 601 ASSERT(error == 0); 602 603 count = ddt_object_count(ddt, type, class); 604 dspace = doi.doi_physical_blocks_512 << 9; 605 mspace = doi.doi_fill_count * doi.doi_data_block_size; 606 607 ASSERT(count != 0); /* we should have destroyed it */ 608 609 ddt_object_name(ddt, type, class, name); 610 611 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n", 612 name, 613 (u_longlong_t)count, 614 (u_longlong_t)(dspace / count), 615 (u_longlong_t)(mspace / count)); 616 617 if (dump_opt['D'] < 3) 618 return; 619 620 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]); 621 622 if (dump_opt['D'] < 4) 623 return; 624 625 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE) 626 return; 627 628 (void) printf("%s contents:\n\n", name); 629 630 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0) 631 dump_dde(ddt, &dde, walk); 632 633 ASSERT(error == ENOENT); 634 635 (void) printf("\n"); 636 } 637 638 static void 639 dump_all_ddts(spa_t *spa) 640 { 641 ddt_histogram_t ddh_total = { 0 }; 642 ddt_stat_t dds_total = { 0 }; 643 644 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { 645 ddt_t *ddt = spa->spa_ddt[c]; 646 for (enum ddt_type type = 0; type < DDT_TYPES; type++) { 647 for (enum ddt_class class = 0; class < DDT_CLASSES; 648 class++) { 649 dump_ddt(ddt, type, class); 650 } 651 } 652 } 653 654 ddt_get_dedup_stats(spa, &dds_total); 655 656 if (dds_total.dds_blocks == 0) { 657 (void) printf("All DDTs are empty\n"); 658 return; 659 } 660 661 (void) printf("\n"); 662 663 if (dump_opt['D'] > 1) { 664 (void) printf("DDT histogram (aggregated over all DDTs):\n"); 665 ddt_get_dedup_histogram(spa, &ddh_total); 666 zpool_dump_ddt(&dds_total, &ddh_total); 667 } 668 669 dump_dedup_ratio(&dds_total); 670 } 671 672 static void 673 dump_dtl_seg(space_map_t *sm, uint64_t start, uint64_t size) 674 { 675 char *prefix = (void *)sm; 676 677 (void) printf("%s [%llu,%llu) length %llu\n", 678 prefix, 679 (u_longlong_t)start, 680 (u_longlong_t)(start + size), 681 (u_longlong_t)(size)); 682 } 683 684 static void 685 dump_dtl(vdev_t *vd, int indent) 686 { 687 spa_t *spa = vd->vdev_spa; 688 boolean_t required; 689 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" }; 690 char prefix[256]; 691 692 spa_vdev_state_enter(spa, SCL_NONE); 693 required = vdev_dtl_required(vd); 694 (void) spa_vdev_state_exit(spa, NULL, 0); 695 696 if (indent == 0) 697 (void) printf("\nDirty time logs:\n\n"); 698 699 (void) printf("\t%*s%s [%s]\n", indent, "", 700 vd->vdev_path ? vd->vdev_path : 701 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 702 required ? "DTL-required" : "DTL-expendable"); 703 704 for (int t = 0; t < DTL_TYPES; t++) { 705 space_map_t *sm = &vd->vdev_dtl[t]; 706 if (sm->sm_space == 0) 707 continue; 708 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 709 indent + 2, "", name[t]); 710 mutex_enter(sm->sm_lock); 711 space_map_walk(sm, dump_dtl_seg, (void *)prefix); 712 mutex_exit(sm->sm_lock); 713 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 714 dump_spacemap(spa->spa_meta_objset, 715 &vd->vdev_dtl_smo, sm); 716 } 717 718 for (int c = 0; c < vd->vdev_children; c++) 719 dump_dtl(vd->vdev_child[c], indent + 4); 720 } 721 722 static void 723 dump_history(spa_t *spa) 724 { 725 nvlist_t **events = NULL; 726 char buf[SPA_MAXBLOCKSIZE]; 727 uint64_t resid, len, off = 0; 728 uint_t num = 0; 729 int error; 730 time_t tsec; 731 struct tm t; 732 char tbuf[30]; 733 char internalstr[MAXPATHLEN]; 734 735 do { 736 len = sizeof (buf); 737 738 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 739 (void) fprintf(stderr, "Unable to read history: " 740 "error %d\n", error); 741 return; 742 } 743 744 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 745 break; 746 747 off -= resid; 748 } while (len != 0); 749 750 (void) printf("\nHistory:\n"); 751 for (int i = 0; i < num; i++) { 752 uint64_t time, txg, ievent; 753 char *cmd, *intstr; 754 755 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, 756 &time) != 0) 757 continue; 758 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, 759 &cmd) != 0) { 760 if (nvlist_lookup_uint64(events[i], 761 ZPOOL_HIST_INT_EVENT, &ievent) != 0) 762 continue; 763 verify(nvlist_lookup_uint64(events[i], 764 ZPOOL_HIST_TXG, &txg) == 0); 765 verify(nvlist_lookup_string(events[i], 766 ZPOOL_HIST_INT_STR, &intstr) == 0); 767 if (ievent >= LOG_END) 768 continue; 769 770 (void) snprintf(internalstr, 771 sizeof (internalstr), 772 "[internal %s txg:%lld] %s", 773 hist_event_table[ievent], txg, 774 intstr); 775 cmd = internalstr; 776 } 777 tsec = time; 778 (void) localtime_r(&tsec, &t); 779 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 780 (void) printf("%s %s\n", tbuf, cmd); 781 } 782 } 783 784 /*ARGSUSED*/ 785 static void 786 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 787 { 788 } 789 790 static uint64_t 791 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, const zbookmark_t *zb) 792 { 793 if (dnp == NULL) { 794 ASSERT(zb->zb_level < 0); 795 if (zb->zb_object == 0) 796 return (zb->zb_blkid); 797 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 798 } 799 800 ASSERT(zb->zb_level >= 0); 801 802 return ((zb->zb_blkid << 803 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 804 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 805 } 806 807 static void 808 sprintf_blkptr_compact(char *blkbuf, blkptr_t *bp) 809 { 810 dva_t *dva = bp->blk_dva; 811 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 812 813 if (dump_opt['b'] >= 5) { 814 sprintf_blkptr(blkbuf, bp); 815 return; 816 } 817 818 blkbuf[0] = '\0'; 819 820 for (int i = 0; i < ndvas; i++) 821 (void) sprintf(blkbuf + strlen(blkbuf), "%llu:%llx:%llx ", 822 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 823 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 824 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 825 826 (void) sprintf(blkbuf + strlen(blkbuf), 827 "%llxL/%llxP F=%llu B=%llu/%llu", 828 (u_longlong_t)BP_GET_LSIZE(bp), 829 (u_longlong_t)BP_GET_PSIZE(bp), 830 (u_longlong_t)bp->blk_fill, 831 (u_longlong_t)bp->blk_birth, 832 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 833 } 834 835 static void 836 print_indirect(blkptr_t *bp, const zbookmark_t *zb, 837 const dnode_phys_t *dnp) 838 { 839 char blkbuf[BP_SPRINTF_LEN]; 840 int l; 841 842 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 843 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 844 845 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 846 847 ASSERT(zb->zb_level >= 0); 848 849 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 850 if (l == zb->zb_level) { 851 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 852 } else { 853 (void) printf(" "); 854 } 855 } 856 857 sprintf_blkptr_compact(blkbuf, bp); 858 (void) printf("%s\n", blkbuf); 859 } 860 861 static int 862 visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 863 blkptr_t *bp, const zbookmark_t *zb) 864 { 865 int err = 0; 866 867 if (bp->blk_birth == 0) 868 return (0); 869 870 print_indirect(bp, zb, dnp); 871 872 if (BP_GET_LEVEL(bp) > 0) { 873 uint32_t flags = ARC_WAIT; 874 int i; 875 blkptr_t *cbp; 876 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 877 arc_buf_t *buf; 878 uint64_t fill = 0; 879 880 err = arc_read_nolock(NULL, spa, bp, arc_getbuf_func, &buf, 881 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 882 if (err) 883 return (err); 884 885 /* recursively visit blocks below this */ 886 cbp = buf->b_data; 887 for (i = 0; i < epb; i++, cbp++) { 888 zbookmark_t czb; 889 890 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 891 zb->zb_level - 1, 892 zb->zb_blkid * epb + i); 893 err = visit_indirect(spa, dnp, cbp, &czb); 894 if (err) 895 break; 896 fill += cbp->blk_fill; 897 } 898 if (!err) 899 ASSERT3U(fill, ==, bp->blk_fill); 900 (void) arc_buf_remove_ref(buf, &buf); 901 } 902 903 return (err); 904 } 905 906 /*ARGSUSED*/ 907 static void 908 dump_indirect(dnode_t *dn) 909 { 910 dnode_phys_t *dnp = dn->dn_phys; 911 int j; 912 zbookmark_t czb; 913 914 (void) printf("Indirect blocks:\n"); 915 916 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 917 dn->dn_object, dnp->dn_nlevels - 1, 0); 918 for (j = 0; j < dnp->dn_nblkptr; j++) { 919 czb.zb_blkid = j; 920 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 921 &dnp->dn_blkptr[j], &czb); 922 } 923 924 (void) printf("\n"); 925 } 926 927 /*ARGSUSED*/ 928 static void 929 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 930 { 931 dsl_dir_phys_t *dd = data; 932 time_t crtime; 933 char nice[6]; 934 935 if (dd == NULL) 936 return; 937 938 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 939 940 crtime = dd->dd_creation_time; 941 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 942 (void) printf("\t\thead_dataset_obj = %llu\n", 943 (u_longlong_t)dd->dd_head_dataset_obj); 944 (void) printf("\t\tparent_dir_obj = %llu\n", 945 (u_longlong_t)dd->dd_parent_obj); 946 (void) printf("\t\torigin_obj = %llu\n", 947 (u_longlong_t)dd->dd_origin_obj); 948 (void) printf("\t\tchild_dir_zapobj = %llu\n", 949 (u_longlong_t)dd->dd_child_dir_zapobj); 950 nicenum(dd->dd_used_bytes, nice); 951 (void) printf("\t\tused_bytes = %s\n", nice); 952 nicenum(dd->dd_compressed_bytes, nice); 953 (void) printf("\t\tcompressed_bytes = %s\n", nice); 954 nicenum(dd->dd_uncompressed_bytes, nice); 955 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 956 nicenum(dd->dd_quota, nice); 957 (void) printf("\t\tquota = %s\n", nice); 958 nicenum(dd->dd_reserved, nice); 959 (void) printf("\t\treserved = %s\n", nice); 960 (void) printf("\t\tprops_zapobj = %llu\n", 961 (u_longlong_t)dd->dd_props_zapobj); 962 (void) printf("\t\tdeleg_zapobj = %llu\n", 963 (u_longlong_t)dd->dd_deleg_zapobj); 964 (void) printf("\t\tflags = %llx\n", 965 (u_longlong_t)dd->dd_flags); 966 967 #define DO(which) \ 968 nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \ 969 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 970 DO(HEAD); 971 DO(SNAP); 972 DO(CHILD); 973 DO(CHILD_RSRV); 974 DO(REFRSRV); 975 #undef DO 976 } 977 978 /*ARGSUSED*/ 979 static void 980 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 981 { 982 dsl_dataset_phys_t *ds = data; 983 time_t crtime; 984 char used[6], compressed[6], uncompressed[6], unique[6]; 985 char blkbuf[BP_SPRINTF_LEN]; 986 987 if (ds == NULL) 988 return; 989 990 ASSERT(size == sizeof (*ds)); 991 crtime = ds->ds_creation_time; 992 nicenum(ds->ds_used_bytes, used); 993 nicenum(ds->ds_compressed_bytes, compressed); 994 nicenum(ds->ds_uncompressed_bytes, uncompressed); 995 nicenum(ds->ds_unique_bytes, unique); 996 sprintf_blkptr(blkbuf, &ds->ds_bp); 997 998 (void) printf("\t\tdir_obj = %llu\n", 999 (u_longlong_t)ds->ds_dir_obj); 1000 (void) printf("\t\tprev_snap_obj = %llu\n", 1001 (u_longlong_t)ds->ds_prev_snap_obj); 1002 (void) printf("\t\tprev_snap_txg = %llu\n", 1003 (u_longlong_t)ds->ds_prev_snap_txg); 1004 (void) printf("\t\tnext_snap_obj = %llu\n", 1005 (u_longlong_t)ds->ds_next_snap_obj); 1006 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1007 (u_longlong_t)ds->ds_snapnames_zapobj); 1008 (void) printf("\t\tnum_children = %llu\n", 1009 (u_longlong_t)ds->ds_num_children); 1010 (void) printf("\t\tuserrefs_obj = %llu\n", 1011 (u_longlong_t)ds->ds_userrefs_obj); 1012 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1013 (void) printf("\t\tcreation_txg = %llu\n", 1014 (u_longlong_t)ds->ds_creation_txg); 1015 (void) printf("\t\tdeadlist_obj = %llu\n", 1016 (u_longlong_t)ds->ds_deadlist_obj); 1017 (void) printf("\t\tused_bytes = %s\n", used); 1018 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1019 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1020 (void) printf("\t\tunique = %s\n", unique); 1021 (void) printf("\t\tfsid_guid = %llu\n", 1022 (u_longlong_t)ds->ds_fsid_guid); 1023 (void) printf("\t\tguid = %llu\n", 1024 (u_longlong_t)ds->ds_guid); 1025 (void) printf("\t\tflags = %llx\n", 1026 (u_longlong_t)ds->ds_flags); 1027 (void) printf("\t\tnext_clones_obj = %llu\n", 1028 (u_longlong_t)ds->ds_next_clones_obj); 1029 (void) printf("\t\tprops_obj = %llu\n", 1030 (u_longlong_t)ds->ds_props_obj); 1031 (void) printf("\t\tbp = %s\n", blkbuf); 1032 } 1033 1034 static void 1035 dump_bplist(objset_t *mos, uint64_t object, char *name) 1036 { 1037 bplist_t bpl = { 0 }; 1038 blkptr_t blk, *bp = &blk; 1039 uint64_t itor = 0; 1040 char bytes[6]; 1041 char comp[6]; 1042 char uncomp[6]; 1043 1044 if (dump_opt['d'] < 3) 1045 return; 1046 1047 bplist_init(&bpl); 1048 VERIFY(0 == bplist_open(&bpl, mos, object)); 1049 if (bplist_empty(&bpl)) { 1050 bplist_close(&bpl); 1051 bplist_fini(&bpl); 1052 return; 1053 } 1054 1055 nicenum(bpl.bpl_phys->bpl_bytes, bytes); 1056 if (bpl.bpl_dbuf->db_size == sizeof (bplist_phys_t)) { 1057 nicenum(bpl.bpl_phys->bpl_comp, comp); 1058 nicenum(bpl.bpl_phys->bpl_uncomp, uncomp); 1059 (void) printf("\n %s: %llu entries, %s (%s/%s comp)\n", 1060 name, (u_longlong_t)bpl.bpl_phys->bpl_entries, 1061 bytes, comp, uncomp); 1062 } else { 1063 (void) printf("\n %s: %llu entries, %s\n", 1064 name, (u_longlong_t)bpl.bpl_phys->bpl_entries, bytes); 1065 } 1066 1067 if (dump_opt['d'] < 5) { 1068 bplist_close(&bpl); 1069 bplist_fini(&bpl); 1070 return; 1071 } 1072 1073 (void) printf("\n"); 1074 1075 while (bplist_iterate(&bpl, &itor, bp) == 0) { 1076 char blkbuf[BP_SPRINTF_LEN]; 1077 1078 ASSERT(bp->blk_birth != 0); 1079 sprintf_blkptr_compact(blkbuf, bp); 1080 (void) printf("\tItem %3llu: %s\n", 1081 (u_longlong_t)itor - 1, blkbuf); 1082 } 1083 1084 bplist_close(&bpl); 1085 bplist_fini(&bpl); 1086 } 1087 1088 static avl_tree_t idx_tree; 1089 static avl_tree_t domain_tree; 1090 static boolean_t fuid_table_loaded; 1091 1092 static void 1093 fuid_table_destroy() 1094 { 1095 if (fuid_table_loaded) { 1096 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 1097 fuid_table_loaded = B_FALSE; 1098 } 1099 } 1100 1101 /* 1102 * print uid or gid information. 1103 * For normal POSIX id just the id is printed in decimal format. 1104 * For CIFS files with FUID the fuid is printed in hex followed by 1105 * the doman-rid string. 1106 */ 1107 static void 1108 print_idstr(uint64_t id, const char *id_type) 1109 { 1110 if (FUID_INDEX(id)) { 1111 char *domain; 1112 1113 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 1114 (void) printf("\t%s %llx [%s-%d]\n", id_type, 1115 (u_longlong_t)id, domain, (int)FUID_RID(id)); 1116 } else { 1117 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 1118 } 1119 1120 } 1121 1122 static void 1123 dump_uidgid(objset_t *os, znode_phys_t *zp) 1124 { 1125 uint32_t uid_idx, gid_idx; 1126 1127 uid_idx = FUID_INDEX(zp->zp_uid); 1128 gid_idx = FUID_INDEX(zp->zp_gid); 1129 1130 /* Load domain table, if not already loaded */ 1131 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 1132 uint64_t fuid_obj; 1133 1134 /* first find the fuid object. It lives in the master node */ 1135 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 1136 8, 1, &fuid_obj) == 0); 1137 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 1138 (void) zfs_fuid_table_load(os, fuid_obj, 1139 &idx_tree, &domain_tree); 1140 fuid_table_loaded = B_TRUE; 1141 } 1142 1143 print_idstr(zp->zp_uid, "uid"); 1144 print_idstr(zp->zp_gid, "gid"); 1145 } 1146 1147 /*ARGSUSED*/ 1148 static void 1149 dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 1150 { 1151 znode_phys_t *zp = data; 1152 time_t z_crtime, z_atime, z_mtime, z_ctime; 1153 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 1154 int error; 1155 1156 ASSERT(size >= sizeof (znode_phys_t)); 1157 1158 error = zfs_obj_to_path(os, object, path, sizeof (path)); 1159 if (error != 0) { 1160 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>", 1161 (u_longlong_t)object); 1162 } 1163 1164 if (dump_opt['d'] < 3) { 1165 (void) printf("\t%s\n", path); 1166 return; 1167 } 1168 1169 z_crtime = (time_t)zp->zp_crtime[0]; 1170 z_atime = (time_t)zp->zp_atime[0]; 1171 z_mtime = (time_t)zp->zp_mtime[0]; 1172 z_ctime = (time_t)zp->zp_ctime[0]; 1173 1174 (void) printf("\tpath %s\n", path); 1175 dump_uidgid(os, zp); 1176 (void) printf("\tatime %s", ctime(&z_atime)); 1177 (void) printf("\tmtime %s", ctime(&z_mtime)); 1178 (void) printf("\tctime %s", ctime(&z_ctime)); 1179 (void) printf("\tcrtime %s", ctime(&z_crtime)); 1180 (void) printf("\tgen %llu\n", (u_longlong_t)zp->zp_gen); 1181 (void) printf("\tmode %llo\n", (u_longlong_t)zp->zp_mode); 1182 (void) printf("\tsize %llu\n", (u_longlong_t)zp->zp_size); 1183 (void) printf("\tparent %llu\n", (u_longlong_t)zp->zp_parent); 1184 (void) printf("\tlinks %llu\n", (u_longlong_t)zp->zp_links); 1185 (void) printf("\txattr %llu\n", (u_longlong_t)zp->zp_xattr); 1186 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)zp->zp_rdev); 1187 } 1188 1189 /*ARGSUSED*/ 1190 static void 1191 dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 1192 { 1193 } 1194 1195 /*ARGSUSED*/ 1196 static void 1197 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 1198 { 1199 } 1200 1201 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 1202 dump_none, /* unallocated */ 1203 dump_zap, /* object directory */ 1204 dump_uint64, /* object array */ 1205 dump_none, /* packed nvlist */ 1206 dump_packed_nvlist, /* packed nvlist size */ 1207 dump_none, /* bplist */ 1208 dump_none, /* bplist header */ 1209 dump_none, /* SPA space map header */ 1210 dump_none, /* SPA space map */ 1211 dump_none, /* ZIL intent log */ 1212 dump_dnode, /* DMU dnode */ 1213 dump_dmu_objset, /* DMU objset */ 1214 dump_dsl_dir, /* DSL directory */ 1215 dump_zap, /* DSL directory child map */ 1216 dump_zap, /* DSL dataset snap map */ 1217 dump_zap, /* DSL props */ 1218 dump_dsl_dataset, /* DSL dataset */ 1219 dump_znode, /* ZFS znode */ 1220 dump_acl, /* ZFS V0 ACL */ 1221 dump_uint8, /* ZFS plain file */ 1222 dump_zpldir, /* ZFS directory */ 1223 dump_zap, /* ZFS master node */ 1224 dump_zap, /* ZFS delete queue */ 1225 dump_uint8, /* zvol object */ 1226 dump_zap, /* zvol prop */ 1227 dump_uint8, /* other uint8[] */ 1228 dump_uint64, /* other uint64[] */ 1229 dump_zap, /* other ZAP */ 1230 dump_zap, /* persistent error log */ 1231 dump_uint8, /* SPA history */ 1232 dump_uint64, /* SPA history offsets */ 1233 dump_zap, /* Pool properties */ 1234 dump_zap, /* DSL permissions */ 1235 dump_acl, /* ZFS ACL */ 1236 dump_uint8, /* ZFS SYSACL */ 1237 dump_none, /* FUID nvlist */ 1238 dump_packed_nvlist, /* FUID nvlist size */ 1239 dump_zap, /* DSL dataset next clones */ 1240 dump_zap, /* DSL scrub queue */ 1241 dump_zap, /* ZFS user/group used */ 1242 dump_zap, /* ZFS user/group quota */ 1243 dump_zap, /* snapshot refcount tags */ 1244 dump_none, /* DDT ZAP object */ 1245 dump_zap, /* DDT statistics */ 1246 dump_unknown /* Unknown type, must be last */ 1247 }; 1248 1249 static void 1250 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1251 { 1252 dmu_buf_t *db = NULL; 1253 dmu_object_info_t doi; 1254 dnode_t *dn; 1255 void *bonus = NULL; 1256 size_t bsize = 0; 1257 char iblk[6], dblk[6], lsize[6], asize[6], bonus_size[6], fill[7]; 1258 char aux[50]; 1259 int error; 1260 1261 if (*print_header) { 1262 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n", 1263 "Object", "lvl", "iblk", "dblk", "dsize", "lsize", 1264 "%full", "type"); 1265 *print_header = 0; 1266 } 1267 1268 if (object == 0) { 1269 dn = os->os_meta_dnode; 1270 } else { 1271 error = dmu_bonus_hold(os, object, FTAG, &db); 1272 if (error) 1273 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1274 object, error); 1275 bonus = db->db_data; 1276 bsize = db->db_size; 1277 dn = ((dmu_buf_impl_t *)db)->db_dnode; 1278 } 1279 dmu_object_info_from_dnode(dn, &doi); 1280 1281 nicenum(doi.doi_metadata_block_size, iblk); 1282 nicenum(doi.doi_data_block_size, dblk); 1283 nicenum(doi.doi_max_offset, lsize); 1284 nicenum(doi.doi_physical_blocks_512 << 9, asize); 1285 nicenum(doi.doi_bonus_size, bonus_size); 1286 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 1287 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 1288 doi.doi_max_offset); 1289 1290 aux[0] = '\0'; 1291 1292 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1293 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1294 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 1295 } 1296 1297 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1298 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1299 ZDB_COMPRESS_NAME(doi.doi_compress)); 1300 } 1301 1302 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n", 1303 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 1304 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 1305 1306 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1307 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n", 1308 "", "", "", "", "", bonus_size, "bonus", 1309 ZDB_OT_NAME(doi.doi_bonus_type)); 1310 } 1311 1312 if (verbosity >= 4) { 1313 (void) printf("\tdnode flags: %s%s\n", 1314 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 1315 "USED_BYTES " : "", 1316 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 1317 "USERUSED_ACCOUNTED " : ""); 1318 (void) printf("\tdnode maxblkid: %llu\n", 1319 (longlong_t)dn->dn_phys->dn_maxblkid); 1320 1321 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, 1322 bonus, bsize); 1323 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); 1324 *print_header = 1; 1325 } 1326 1327 if (verbosity >= 5) 1328 dump_indirect(dn); 1329 1330 if (verbosity >= 5) { 1331 /* 1332 * Report the list of segments that comprise the object. 1333 */ 1334 uint64_t start = 0; 1335 uint64_t end; 1336 uint64_t blkfill = 1; 1337 int minlvl = 1; 1338 1339 if (dn->dn_type == DMU_OT_DNODE) { 1340 minlvl = 0; 1341 blkfill = DNODES_PER_BLOCK; 1342 } 1343 1344 for (;;) { 1345 char segsize[6]; 1346 error = dnode_next_offset(dn, 1347 0, &start, minlvl, blkfill, 0); 1348 if (error) 1349 break; 1350 end = start; 1351 error = dnode_next_offset(dn, 1352 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 1353 nicenum(end - start, segsize); 1354 (void) printf("\t\tsegment [%016llx, %016llx)" 1355 " size %5s\n", (u_longlong_t)start, 1356 (u_longlong_t)end, segsize); 1357 if (error) 1358 break; 1359 start = end; 1360 } 1361 } 1362 1363 if (db != NULL) 1364 dmu_buf_rele(db, FTAG); 1365 } 1366 1367 static char *objset_types[DMU_OST_NUMTYPES] = { 1368 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1369 1370 static void 1371 dump_dir(objset_t *os) 1372 { 1373 dmu_objset_stats_t dds; 1374 uint64_t object, object_count; 1375 uint64_t refdbytes, usedobjs, scratch; 1376 char numbuf[8]; 1377 char blkbuf[BP_SPRINTF_LEN + 20]; 1378 char osname[MAXNAMELEN]; 1379 char *type = "UNKNOWN"; 1380 int verbosity = dump_opt['d']; 1381 int print_header = 1; 1382 int i, error; 1383 1384 dmu_objset_fast_stat(os, &dds); 1385 1386 if (dds.dds_type < DMU_OST_NUMTYPES) 1387 type = objset_types[dds.dds_type]; 1388 1389 if (dds.dds_type == DMU_OST_META) { 1390 dds.dds_creation_txg = TXG_INITIAL; 1391 usedobjs = os->os_rootbp->blk_fill; 1392 refdbytes = os->os_spa->spa_dsl_pool-> 1393 dp_mos_dir->dd_phys->dd_used_bytes; 1394 } else { 1395 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 1396 } 1397 1398 ASSERT3U(usedobjs, ==, os->os_rootbp->blk_fill); 1399 1400 nicenum(refdbytes, numbuf); 1401 1402 if (verbosity >= 4) { 1403 (void) sprintf(blkbuf, ", rootbp "); 1404 (void) sprintf_blkptr(blkbuf + strlen(blkbuf), os->os_rootbp); 1405 } else { 1406 blkbuf[0] = '\0'; 1407 } 1408 1409 dmu_objset_name(os, osname); 1410 1411 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 1412 "%s, %llu objects%s\n", 1413 osname, type, (u_longlong_t)dmu_objset_id(os), 1414 (u_longlong_t)dds.dds_creation_txg, 1415 numbuf, (u_longlong_t)usedobjs, blkbuf); 1416 1417 if (zopt_objects != 0) { 1418 for (i = 0; i < zopt_objects; i++) 1419 dump_object(os, zopt_object[i], verbosity, 1420 &print_header); 1421 (void) printf("\n"); 1422 return; 1423 } 1424 1425 if (dump_opt['i'] != 0 || verbosity >= 2) 1426 dump_intent_log(dmu_objset_zil(os)); 1427 1428 if (dmu_objset_ds(os) != NULL) 1429 dump_bplist(dmu_objset_pool(os)->dp_meta_objset, 1430 dmu_objset_ds(os)->ds_phys->ds_deadlist_obj, "Deadlist"); 1431 1432 if (verbosity < 2) 1433 return; 1434 1435 if (os->os_rootbp->blk_birth == 0) 1436 return; 1437 1438 dump_object(os, 0, verbosity, &print_header); 1439 object_count = 0; 1440 if (os->os_userused_dnode && 1441 os->os_userused_dnode->dn_type != 0) { 1442 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 1443 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 1444 } 1445 1446 object = 0; 1447 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 1448 dump_object(os, object, verbosity, &print_header); 1449 object_count++; 1450 } 1451 1452 ASSERT3U(object_count, ==, usedobjs); 1453 1454 (void) printf("\n"); 1455 1456 if (error != ESRCH) { 1457 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 1458 abort(); 1459 } 1460 } 1461 1462 static void 1463 dump_uberblock(uberblock_t *ub) 1464 { 1465 time_t timestamp = ub->ub_timestamp; 1466 1467 (void) printf("\nUberblock:\n"); 1468 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 1469 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 1470 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 1471 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 1472 (void) printf("\ttimestamp = %llu UTC = %s", 1473 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 1474 if (dump_opt['u'] >= 3) { 1475 char blkbuf[BP_SPRINTF_LEN]; 1476 sprintf_blkptr(blkbuf, &ub->ub_rootbp); 1477 (void) printf("\trootbp = %s\n", blkbuf); 1478 } 1479 (void) printf("\n"); 1480 } 1481 1482 static void 1483 dump_config(spa_t *spa) 1484 { 1485 dmu_buf_t *db; 1486 size_t nvsize = 0; 1487 int error = 0; 1488 1489 1490 error = dmu_bonus_hold(spa->spa_meta_objset, 1491 spa->spa_config_object, FTAG, &db); 1492 1493 if (error == 0) { 1494 nvsize = *(uint64_t *)db->db_data; 1495 dmu_buf_rele(db, FTAG); 1496 1497 (void) printf("\nMOS Configuration:\n"); 1498 dump_packed_nvlist(spa->spa_meta_objset, 1499 spa->spa_config_object, (void *)&nvsize, 1); 1500 } else { 1501 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 1502 (u_longlong_t)spa->spa_config_object, error); 1503 } 1504 } 1505 1506 static void 1507 dump_cachefile(const char *cachefile) 1508 { 1509 int fd; 1510 struct stat64 statbuf; 1511 char *buf; 1512 nvlist_t *config; 1513 1514 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 1515 (void) printf("cannot open '%s': %s\n", cachefile, 1516 strerror(errno)); 1517 exit(1); 1518 } 1519 1520 if (fstat64(fd, &statbuf) != 0) { 1521 (void) printf("failed to stat '%s': %s\n", cachefile, 1522 strerror(errno)); 1523 exit(1); 1524 } 1525 1526 if ((buf = malloc(statbuf.st_size)) == NULL) { 1527 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 1528 (u_longlong_t)statbuf.st_size); 1529 exit(1); 1530 } 1531 1532 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 1533 (void) fprintf(stderr, "failed to read %llu bytes\n", 1534 (u_longlong_t)statbuf.st_size); 1535 exit(1); 1536 } 1537 1538 (void) close(fd); 1539 1540 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 1541 (void) fprintf(stderr, "failed to unpack nvlist\n"); 1542 exit(1); 1543 } 1544 1545 free(buf); 1546 1547 dump_nvlist(config, 0); 1548 1549 nvlist_free(config); 1550 } 1551 1552 static void 1553 dump_label(const char *dev) 1554 { 1555 int fd; 1556 vdev_label_t label; 1557 char *buf = label.vl_vdev_phys.vp_nvlist; 1558 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 1559 struct stat64 statbuf; 1560 uint64_t psize; 1561 int l; 1562 1563 if ((fd = open64(dev, O_RDONLY)) < 0) { 1564 (void) printf("cannot open '%s': %s\n", dev, strerror(errno)); 1565 exit(1); 1566 } 1567 1568 if (fstat64(fd, &statbuf) != 0) { 1569 (void) printf("failed to stat '%s': %s\n", dev, 1570 strerror(errno)); 1571 exit(1); 1572 } 1573 1574 psize = statbuf.st_size; 1575 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 1576 1577 for (l = 0; l < VDEV_LABELS; l++) { 1578 1579 nvlist_t *config = NULL; 1580 1581 (void) printf("--------------------------------------------\n"); 1582 (void) printf("LABEL %d\n", l); 1583 (void) printf("--------------------------------------------\n"); 1584 1585 if (pread64(fd, &label, sizeof (label), 1586 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 1587 (void) printf("failed to read label %d\n", l); 1588 continue; 1589 } 1590 1591 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 1592 (void) printf("failed to unpack label %d\n", l); 1593 continue; 1594 } 1595 dump_nvlist(config, 4); 1596 nvlist_free(config); 1597 } 1598 } 1599 1600 /*ARGSUSED*/ 1601 static int 1602 dump_one_dir(char *dsname, void *arg) 1603 { 1604 int error; 1605 objset_t *os; 1606 1607 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os); 1608 if (error) { 1609 (void) printf("Could not open %s, error %d\n", dsname, error); 1610 return (0); 1611 } 1612 dump_dir(os); 1613 dmu_objset_disown(os, FTAG); 1614 fuid_table_destroy(); 1615 return (0); 1616 } 1617 1618 /* 1619 * Block statistics. 1620 */ 1621 typedef struct zdb_blkstats { 1622 uint64_t zb_asize; 1623 uint64_t zb_lsize; 1624 uint64_t zb_psize; 1625 uint64_t zb_count; 1626 } zdb_blkstats_t; 1627 1628 /* 1629 * Extended object types to report deferred frees and dedup auto-ditto blocks. 1630 */ 1631 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 1632 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 1633 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 2) 1634 1635 static char *zdb_ot_extname[] = { 1636 "deferred free", 1637 "dedup ditto", 1638 "Total", 1639 }; 1640 1641 #define ZB_TOTAL DN_MAX_LEVELS 1642 1643 typedef struct zdb_cb { 1644 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 1645 uint64_t zcb_dedup_asize; 1646 uint64_t zcb_dedup_blocks; 1647 uint64_t zcb_errors[256]; 1648 int zcb_readfails; 1649 int zcb_haderrors; 1650 } zdb_cb_t; 1651 1652 static void 1653 zdb_count_block(spa_t *spa, zilog_t *zilog, zdb_cb_t *zcb, const blkptr_t *bp, 1654 dmu_object_type_t type) 1655 { 1656 uint64_t refcnt = 0; 1657 1658 ASSERT(type < ZDB_OT_TOTAL); 1659 1660 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 1661 return; 1662 1663 for (int i = 0; i < 4; i++) { 1664 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 1665 int t = (i & 1) ? type : ZDB_OT_TOTAL; 1666 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 1667 1668 zb->zb_asize += BP_GET_ASIZE(bp); 1669 zb->zb_lsize += BP_GET_LSIZE(bp); 1670 zb->zb_psize += BP_GET_PSIZE(bp); 1671 zb->zb_count++; 1672 } 1673 1674 if (dump_opt['L']) 1675 return; 1676 1677 if (BP_GET_DEDUP(bp)) { 1678 ddt_t *ddt; 1679 ddt_entry_t *dde; 1680 1681 ddt = ddt_select(spa, bp); 1682 ddt_enter(ddt); 1683 dde = ddt_lookup(ddt, bp, B_FALSE); 1684 1685 if (dde == NULL) { 1686 refcnt = 0; 1687 } else { 1688 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 1689 ddt_phys_decref(ddp); 1690 refcnt = ddp->ddp_refcnt; 1691 if (ddt_phys_total_refcnt(dde) == 0) 1692 ddt_remove(ddt, dde); 1693 } 1694 ddt_exit(ddt); 1695 } 1696 1697 VERIFY3U(zio_wait(zio_claim(NULL, spa, 1698 refcnt ? 0 : spa_first_txg(spa), 1699 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 1700 } 1701 1702 static int 1703 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 1704 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) 1705 { 1706 zdb_cb_t *zcb = arg; 1707 char blkbuf[BP_SPRINTF_LEN]; 1708 dmu_object_type_t type; 1709 boolean_t is_metadata; 1710 1711 if (bp == NULL) 1712 return (0); 1713 1714 type = BP_GET_TYPE(bp); 1715 1716 zdb_count_block(spa, zilog, zcb, bp, type); 1717 1718 is_metadata = (BP_GET_LEVEL(bp) != 0 || dmu_ot[type].ot_metadata); 1719 1720 if (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata)) { 1721 int ioerr; 1722 size_t size = BP_GET_PSIZE(bp); 1723 void *data = malloc(size); 1724 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 1725 1726 /* If it's an intent log block, failure is expected. */ 1727 if (zb->zb_level == ZB_ZIL_LEVEL) 1728 flags |= ZIO_FLAG_SPECULATIVE; 1729 1730 ioerr = zio_wait(zio_read(NULL, spa, bp, data, size, 1731 NULL, NULL, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 1732 1733 free(data); 1734 1735 if (ioerr && !(flags & ZIO_FLAG_SPECULATIVE)) { 1736 zcb->zcb_haderrors = 1; 1737 zcb->zcb_errors[ioerr]++; 1738 1739 if (dump_opt['b'] >= 2) 1740 sprintf_blkptr(blkbuf, bp); 1741 else 1742 blkbuf[0] = '\0'; 1743 1744 (void) printf("zdb_blkptr_cb: " 1745 "Got error %d reading " 1746 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 1747 ioerr, 1748 (u_longlong_t)zb->zb_objset, 1749 (u_longlong_t)zb->zb_object, 1750 (u_longlong_t)zb->zb_level, 1751 (u_longlong_t)zb->zb_blkid, 1752 blkbuf); 1753 } 1754 } 1755 1756 zcb->zcb_readfails = 0; 1757 1758 if (dump_opt['b'] >= 4) { 1759 sprintf_blkptr(blkbuf, bp); 1760 (void) printf("objset %llu object %llu " 1761 "level %lld offset 0x%llx %s\n", 1762 (u_longlong_t)zb->zb_objset, 1763 (u_longlong_t)zb->zb_object, 1764 (longlong_t)zb->zb_level, 1765 (u_longlong_t)blkid2offset(dnp, bp, zb), 1766 blkbuf); 1767 } 1768 1769 return (0); 1770 } 1771 1772 static void 1773 zdb_leak(space_map_t *sm, uint64_t start, uint64_t size) 1774 { 1775 vdev_t *vd = sm->sm_ppd; 1776 1777 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 1778 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 1779 } 1780 1781 /* ARGSUSED */ 1782 static void 1783 zdb_space_map_load(space_map_t *sm) 1784 { 1785 } 1786 1787 static void 1788 zdb_space_map_unload(space_map_t *sm) 1789 { 1790 space_map_vacate(sm, zdb_leak, sm); 1791 } 1792 1793 /* ARGSUSED */ 1794 static void 1795 zdb_space_map_claim(space_map_t *sm, uint64_t start, uint64_t size) 1796 { 1797 } 1798 1799 static space_map_ops_t zdb_space_map_ops = { 1800 zdb_space_map_load, 1801 zdb_space_map_unload, 1802 NULL, /* alloc */ 1803 zdb_space_map_claim, 1804 NULL, /* free */ 1805 NULL /* maxsize */ 1806 }; 1807 1808 static void 1809 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 1810 { 1811 ddt_bookmark_t ddb = { 0 }; 1812 ddt_entry_t dde; 1813 int error; 1814 1815 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 1816 blkptr_t blk; 1817 ddt_phys_t *ddp = dde.dde_phys; 1818 1819 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 1820 return; 1821 1822 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 1823 1824 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 1825 if (ddp->ddp_phys_birth == 0) 1826 continue; 1827 ddt_bp_create(ddb.ddb_checksum, 1828 &dde.dde_key, ddp, &blk); 1829 if (p == DDT_PHYS_DITTO) { 1830 zdb_count_block(spa, NULL, zcb, &blk, 1831 ZDB_OT_DITTO); 1832 } else { 1833 zcb->zcb_dedup_asize += 1834 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 1835 zcb->zcb_dedup_blocks++; 1836 } 1837 } 1838 if (!dump_opt['L']) { 1839 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 1840 ddt_enter(ddt); 1841 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 1842 ddt_exit(ddt); 1843 } 1844 } 1845 1846 ASSERT(error == ENOENT); 1847 } 1848 1849 static void 1850 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 1851 { 1852 if (!dump_opt['L']) { 1853 vdev_t *rvd = spa->spa_root_vdev; 1854 for (int c = 0; c < rvd->vdev_children; c++) { 1855 vdev_t *vd = rvd->vdev_child[c]; 1856 for (int m = 0; m < vd->vdev_ms_count; m++) { 1857 metaslab_t *msp = vd->vdev_ms[m]; 1858 mutex_enter(&msp->ms_lock); 1859 space_map_unload(&msp->ms_map); 1860 VERIFY(space_map_load(&msp->ms_map, 1861 &zdb_space_map_ops, SM_ALLOC, &msp->ms_smo, 1862 spa->spa_meta_objset) == 0); 1863 msp->ms_map.sm_ppd = vd; 1864 mutex_exit(&msp->ms_lock); 1865 } 1866 } 1867 } 1868 1869 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 1870 1871 zdb_ddt_leak_init(spa, zcb); 1872 1873 spa_config_exit(spa, SCL_CONFIG, FTAG); 1874 } 1875 1876 static void 1877 zdb_leak_fini(spa_t *spa) 1878 { 1879 if (!dump_opt['L']) { 1880 vdev_t *rvd = spa->spa_root_vdev; 1881 for (int c = 0; c < rvd->vdev_children; c++) { 1882 vdev_t *vd = rvd->vdev_child[c]; 1883 for (int m = 0; m < vd->vdev_ms_count; m++) { 1884 metaslab_t *msp = vd->vdev_ms[m]; 1885 mutex_enter(&msp->ms_lock); 1886 space_map_unload(&msp->ms_map); 1887 mutex_exit(&msp->ms_lock); 1888 } 1889 } 1890 } 1891 } 1892 1893 static int 1894 dump_block_stats(spa_t *spa) 1895 { 1896 zdb_cb_t zcb = { 0 }; 1897 zdb_blkstats_t *zb, *tzb; 1898 uint64_t norm_alloc, norm_space, total_alloc, total_found; 1899 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA; 1900 int leaks = 0; 1901 1902 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n", 1903 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 1904 (dump_opt['c'] == 1) ? "metadata " : "", 1905 dump_opt['c'] ? "checksums " : "", 1906 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 1907 !dump_opt['L'] ? "nothing leaked " : ""); 1908 1909 /* 1910 * Load all space maps as SM_ALLOC maps, then traverse the pool 1911 * claiming each block we discover. If the pool is perfectly 1912 * consistent, the space maps will be empty when we're done. 1913 * Anything left over is a leak; any block we can't claim (because 1914 * it's not part of any space map) is a double allocation, 1915 * reference to a freed block, or an unclaimed log block. 1916 */ 1917 zdb_leak_init(spa, &zcb); 1918 1919 /* 1920 * If there's a deferred-free bplist, process that first. 1921 */ 1922 if (spa->spa_deferred_bplist_obj != 0) { 1923 bplist_t *bpl = &spa->spa_deferred_bplist; 1924 blkptr_t blk; 1925 uint64_t itor = 0; 1926 1927 VERIFY(0 == bplist_open(bpl, spa->spa_meta_objset, 1928 spa->spa_deferred_bplist_obj)); 1929 1930 while (bplist_iterate(bpl, &itor, &blk) == 0) { 1931 if (dump_opt['b'] >= 4) { 1932 char blkbuf[BP_SPRINTF_LEN]; 1933 sprintf_blkptr(blkbuf, &blk); 1934 (void) printf("[%s] %s\n", 1935 "deferred free", blkbuf); 1936 } 1937 zdb_count_block(spa, NULL, &zcb, &blk, ZDB_OT_DEFERRED); 1938 } 1939 1940 bplist_close(bpl); 1941 } 1942 1943 if (dump_opt['c'] > 1) 1944 flags |= TRAVERSE_PREFETCH_DATA; 1945 1946 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 1947 1948 if (zcb.zcb_haderrors) { 1949 (void) printf("\nError counts:\n\n"); 1950 (void) printf("\t%5s %s\n", "errno", "count"); 1951 for (int e = 0; e < 256; e++) { 1952 if (zcb.zcb_errors[e] != 0) { 1953 (void) printf("\t%5d %llu\n", 1954 e, (u_longlong_t)zcb.zcb_errors[e]); 1955 } 1956 } 1957 } 1958 1959 /* 1960 * Report any leaked segments. 1961 */ 1962 zdb_leak_fini(spa); 1963 1964 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 1965 1966 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 1967 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 1968 1969 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); 1970 total_found = tzb->zb_asize - zcb.zcb_dedup_asize; 1971 1972 if (total_found == total_alloc) { 1973 if (!dump_opt['L']) 1974 (void) printf("\n\tNo leaks (block sum matches space" 1975 " maps exactly)\n"); 1976 } else { 1977 (void) printf("block traversal size %llu != alloc %llu " 1978 "(%s %lld)\n", 1979 (u_longlong_t)total_found, 1980 (u_longlong_t)total_alloc, 1981 (dump_opt['L']) ? "unreachable" : "leaked", 1982 (longlong_t)(total_alloc - total_found)); 1983 leaks = 1; 1984 } 1985 1986 if (tzb->zb_count == 0) 1987 return (2); 1988 1989 (void) printf("\n"); 1990 (void) printf("\tbp count: %10llu\n", 1991 (u_longlong_t)tzb->zb_count); 1992 (void) printf("\tbp logical: %10llu avg: %6llu\n", 1993 (u_longlong_t)tzb->zb_lsize, 1994 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 1995 (void) printf("\tbp physical: %10llu avg:" 1996 " %6llu compression: %6.2f\n", 1997 (u_longlong_t)tzb->zb_psize, 1998 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 1999 (double)tzb->zb_lsize / tzb->zb_psize); 2000 (void) printf("\tbp allocated: %10llu avg:" 2001 " %6llu compression: %6.2f\n", 2002 (u_longlong_t)tzb->zb_asize, 2003 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 2004 (double)tzb->zb_lsize / tzb->zb_asize); 2005 (void) printf("\tbp deduped: %10llu ref>1:" 2006 " %6llu deduplication: %6.2f\n", 2007 (u_longlong_t)zcb.zcb_dedup_asize, 2008 (u_longlong_t)zcb.zcb_dedup_blocks, 2009 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 2010 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", 2011 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 2012 2013 if (dump_opt['b'] >= 2) { 2014 int l, t, level; 2015 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 2016 "\t avg\t comp\t%%Total\tType\n"); 2017 2018 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 2019 char csize[6], lsize[6], psize[6], asize[6], avg[6]; 2020 char *typename; 2021 2022 if (t < DMU_OT_NUMTYPES) 2023 typename = dmu_ot[t].ot_name; 2024 else 2025 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 2026 2027 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 2028 (void) printf("%6s\t%5s\t%5s\t%5s" 2029 "\t%5s\t%5s\t%6s\t%s\n", 2030 "-", 2031 "-", 2032 "-", 2033 "-", 2034 "-", 2035 "-", 2036 "-", 2037 typename); 2038 continue; 2039 } 2040 2041 for (l = ZB_TOTAL - 1; l >= -1; l--) { 2042 level = (l == -1 ? ZB_TOTAL : l); 2043 zb = &zcb.zcb_type[level][t]; 2044 2045 if (zb->zb_asize == 0) 2046 continue; 2047 2048 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 2049 continue; 2050 2051 if (level == 0 && zb->zb_asize == 2052 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 2053 continue; 2054 2055 nicenum(zb->zb_count, csize); 2056 nicenum(zb->zb_lsize, lsize); 2057 nicenum(zb->zb_psize, psize); 2058 nicenum(zb->zb_asize, asize); 2059 nicenum(zb->zb_asize / zb->zb_count, avg); 2060 2061 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 2062 "\t%5.2f\t%6.2f\t", 2063 csize, lsize, psize, asize, avg, 2064 (double)zb->zb_lsize / zb->zb_psize, 2065 100.0 * zb->zb_asize / tzb->zb_asize); 2066 2067 if (level == ZB_TOTAL) 2068 (void) printf("%s\n", typename); 2069 else 2070 (void) printf(" L%d %s\n", 2071 level, typename); 2072 } 2073 } 2074 } 2075 2076 (void) printf("\n"); 2077 2078 if (leaks) 2079 return (2); 2080 2081 if (zcb.zcb_haderrors) 2082 return (3); 2083 2084 return (0); 2085 } 2086 2087 typedef struct zdb_ddt_entry { 2088 ddt_key_t zdde_key; 2089 uint64_t zdde_ref_blocks; 2090 uint64_t zdde_ref_lsize; 2091 uint64_t zdde_ref_psize; 2092 uint64_t zdde_ref_dsize; 2093 avl_node_t zdde_node; 2094 } zdb_ddt_entry_t; 2095 2096 /* ARGSUSED */ 2097 static int 2098 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2099 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) 2100 { 2101 avl_tree_t *t = arg; 2102 avl_index_t where; 2103 zdb_ddt_entry_t *zdde, zdde_search; 2104 2105 if (bp == NULL) 2106 return (0); 2107 2108 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 2109 (void) printf("traversing objset %llu, %llu objects, " 2110 "%lu blocks so far\n", 2111 (u_longlong_t)zb->zb_objset, 2112 (u_longlong_t)bp->blk_fill, 2113 avl_numnodes(t)); 2114 } 2115 2116 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 2117 BP_GET_LEVEL(bp) > 0 || dmu_ot[BP_GET_TYPE(bp)].ot_metadata) 2118 return (0); 2119 2120 ddt_key_fill(&zdde_search.zdde_key, bp); 2121 2122 zdde = avl_find(t, &zdde_search, &where); 2123 2124 if (zdde == NULL) { 2125 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 2126 zdde->zdde_key = zdde_search.zdde_key; 2127 avl_insert(t, zdde, where); 2128 } 2129 2130 zdde->zdde_ref_blocks += 1; 2131 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 2132 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 2133 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 2134 2135 return (0); 2136 } 2137 2138 static void 2139 dump_simulated_ddt(spa_t *spa) 2140 { 2141 avl_tree_t t; 2142 void *cookie = NULL; 2143 zdb_ddt_entry_t *zdde; 2144 ddt_histogram_t ddh_total = { 0 }; 2145 ddt_stat_t dds_total = { 0 }; 2146 2147 avl_create(&t, ddt_entry_compare, 2148 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 2149 2150 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2151 2152 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, 2153 zdb_ddt_add_cb, &t); 2154 2155 spa_config_exit(spa, SCL_CONFIG, FTAG); 2156 2157 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 2158 ddt_stat_t dds; 2159 uint64_t refcnt = zdde->zdde_ref_blocks; 2160 ASSERT(refcnt != 0); 2161 2162 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 2163 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 2164 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 2165 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 2166 2167 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 2168 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 2169 dds.dds_ref_psize = zdde->zdde_ref_psize; 2170 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 2171 2172 ddt_stat_add(&ddh_total.ddh_stat[highbit(refcnt) - 1], &dds, 0); 2173 2174 umem_free(zdde, sizeof (*zdde)); 2175 } 2176 2177 avl_destroy(&t); 2178 2179 ddt_histogram_stat(&dds_total, &ddh_total); 2180 2181 (void) printf("Simulated DDT histogram:\n"); 2182 2183 zpool_dump_ddt(&dds_total, &ddh_total); 2184 2185 dump_dedup_ratio(&dds_total); 2186 } 2187 2188 static void 2189 dump_zpool(spa_t *spa) 2190 { 2191 dsl_pool_t *dp = spa_get_dsl(spa); 2192 int rc = 0; 2193 2194 if (dump_opt['S']) { 2195 dump_simulated_ddt(spa); 2196 return; 2197 } 2198 2199 if (!dump_opt['e'] && dump_opt['C'] > 1) { 2200 (void) printf("\nCached configuration:\n"); 2201 dump_nvlist(spa->spa_config, 8); 2202 } 2203 2204 if (dump_opt['C']) 2205 dump_config(spa); 2206 2207 if (dump_opt['u']) 2208 dump_uberblock(&spa->spa_uberblock); 2209 2210 if (dump_opt['D']) 2211 dump_all_ddts(spa); 2212 2213 if (dump_opt['d'] > 2 || dump_opt['m']) 2214 dump_metaslabs(spa); 2215 2216 if (dump_opt['d'] || dump_opt['i']) { 2217 dump_dir(dp->dp_meta_objset); 2218 if (dump_opt['d'] >= 3) { 2219 dump_bplist(dp->dp_meta_objset, 2220 spa->spa_deferred_bplist_obj, "Deferred frees"); 2221 dump_dtl(spa->spa_root_vdev, 0); 2222 } 2223 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 2224 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 2225 } 2226 if (dump_opt['b'] || dump_opt['c']) 2227 rc = dump_block_stats(spa); 2228 2229 if (dump_opt['s']) 2230 show_pool_stats(spa); 2231 2232 if (dump_opt['h']) 2233 dump_history(spa); 2234 2235 if (rc != 0) 2236 exit(rc); 2237 } 2238 2239 #define ZDB_FLAG_CHECKSUM 0x0001 2240 #define ZDB_FLAG_DECOMPRESS 0x0002 2241 #define ZDB_FLAG_BSWAP 0x0004 2242 #define ZDB_FLAG_GBH 0x0008 2243 #define ZDB_FLAG_INDIRECT 0x0010 2244 #define ZDB_FLAG_PHYS 0x0020 2245 #define ZDB_FLAG_RAW 0x0040 2246 #define ZDB_FLAG_PRINT_BLKPTR 0x0080 2247 2248 int flagbits[256]; 2249 2250 static void 2251 zdb_print_blkptr(blkptr_t *bp, int flags) 2252 { 2253 char blkbuf[BP_SPRINTF_LEN]; 2254 2255 if (flags & ZDB_FLAG_BSWAP) 2256 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 2257 2258 sprintf_blkptr(blkbuf, bp); 2259 (void) printf("%s\n", blkbuf); 2260 } 2261 2262 static void 2263 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 2264 { 2265 int i; 2266 2267 for (i = 0; i < nbps; i++) 2268 zdb_print_blkptr(&bp[i], flags); 2269 } 2270 2271 static void 2272 zdb_dump_gbh(void *buf, int flags) 2273 { 2274 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 2275 } 2276 2277 static void 2278 zdb_dump_block_raw(void *buf, uint64_t size, int flags) 2279 { 2280 if (flags & ZDB_FLAG_BSWAP) 2281 byteswap_uint64_array(buf, size); 2282 (void) write(1, buf, size); 2283 } 2284 2285 static void 2286 zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 2287 { 2288 uint64_t *d = (uint64_t *)buf; 2289 int nwords = size / sizeof (uint64_t); 2290 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 2291 int i, j; 2292 char *hdr, *c; 2293 2294 2295 if (do_bswap) 2296 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 2297 else 2298 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 2299 2300 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 2301 2302 for (i = 0; i < nwords; i += 2) { 2303 (void) printf("%06llx: %016llx %016llx ", 2304 (u_longlong_t)(i * sizeof (uint64_t)), 2305 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 2306 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 2307 2308 c = (char *)&d[i]; 2309 for (j = 0; j < 2 * sizeof (uint64_t); j++) 2310 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 2311 (void) printf("\n"); 2312 } 2313 } 2314 2315 /* 2316 * There are two acceptable formats: 2317 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 2318 * child[.child]* - For example: 0.1.1 2319 * 2320 * The second form can be used to specify arbitrary vdevs anywhere 2321 * in the heirarchy. For example, in a pool with a mirror of 2322 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 2323 */ 2324 static vdev_t * 2325 zdb_vdev_lookup(vdev_t *vdev, char *path) 2326 { 2327 char *s, *p, *q; 2328 int i; 2329 2330 if (vdev == NULL) 2331 return (NULL); 2332 2333 /* First, assume the x.x.x.x format */ 2334 i = (int)strtoul(path, &s, 10); 2335 if (s == path || (s && *s != '.' && *s != '\0')) 2336 goto name; 2337 if (i < 0 || i >= vdev->vdev_children) 2338 return (NULL); 2339 2340 vdev = vdev->vdev_child[i]; 2341 if (*s == '\0') 2342 return (vdev); 2343 return (zdb_vdev_lookup(vdev, s+1)); 2344 2345 name: 2346 for (i = 0; i < vdev->vdev_children; i++) { 2347 vdev_t *vc = vdev->vdev_child[i]; 2348 2349 if (vc->vdev_path == NULL) { 2350 vc = zdb_vdev_lookup(vc, path); 2351 if (vc == NULL) 2352 continue; 2353 else 2354 return (vc); 2355 } 2356 2357 p = strrchr(vc->vdev_path, '/'); 2358 p = p ? p + 1 : vc->vdev_path; 2359 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 2360 2361 if (strcmp(vc->vdev_path, path) == 0) 2362 return (vc); 2363 if (strcmp(p, path) == 0) 2364 return (vc); 2365 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 2366 return (vc); 2367 } 2368 2369 return (NULL); 2370 } 2371 2372 /* 2373 * Read a block from a pool and print it out. The syntax of the 2374 * block descriptor is: 2375 * 2376 * pool:vdev_specifier:offset:size[:flags] 2377 * 2378 * pool - The name of the pool you wish to read from 2379 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 2380 * offset - offset, in hex, in bytes 2381 * size - Amount of data to read, in hex, in bytes 2382 * flags - A string of characters specifying options 2383 * b: Decode a blkptr at given offset within block 2384 * *c: Calculate and display checksums 2385 * d: Decompress data before dumping 2386 * e: Byteswap data before dumping 2387 * g: Display data as a gang block header 2388 * i: Display as an indirect block 2389 * p: Do I/O to physical offset 2390 * r: Dump raw data to stdout 2391 * 2392 * * = not yet implemented 2393 */ 2394 static void 2395 zdb_read_block(char *thing, spa_t *spa) 2396 { 2397 blkptr_t blk, *bp = &blk; 2398 dva_t *dva = bp->blk_dva; 2399 int flags = 0; 2400 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 2401 zio_t *zio; 2402 vdev_t *vd; 2403 void *pbuf, *lbuf, *buf; 2404 char *s, *p, *dup, *vdev, *flagstr; 2405 int i, error; 2406 2407 dup = strdup(thing); 2408 s = strtok(dup, ":"); 2409 vdev = s ? s : ""; 2410 s = strtok(NULL, ":"); 2411 offset = strtoull(s ? s : "", NULL, 16); 2412 s = strtok(NULL, ":"); 2413 size = strtoull(s ? s : "", NULL, 16); 2414 s = strtok(NULL, ":"); 2415 flagstr = s ? s : ""; 2416 2417 s = NULL; 2418 if (size == 0) 2419 s = "size must not be zero"; 2420 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 2421 s = "size must be a multiple of sector size"; 2422 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 2423 s = "offset must be a multiple of sector size"; 2424 if (s) { 2425 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 2426 free(dup); 2427 return; 2428 } 2429 2430 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 2431 for (i = 0; flagstr[i]; i++) { 2432 int bit = flagbits[(uchar_t)flagstr[i]]; 2433 2434 if (bit == 0) { 2435 (void) printf("***Invalid flag: %c\n", 2436 flagstr[i]); 2437 continue; 2438 } 2439 flags |= bit; 2440 2441 /* If it's not something with an argument, keep going */ 2442 if ((bit & (ZDB_FLAG_CHECKSUM | 2443 ZDB_FLAG_PRINT_BLKPTR)) == 0) 2444 continue; 2445 2446 p = &flagstr[i + 1]; 2447 if (bit == ZDB_FLAG_PRINT_BLKPTR) 2448 blkptr_offset = strtoull(p, &p, 16); 2449 if (*p != ':' && *p != '\0') { 2450 (void) printf("***Invalid flag arg: '%s'\n", s); 2451 free(dup); 2452 return; 2453 } 2454 } 2455 } 2456 2457 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 2458 if (vd == NULL) { 2459 (void) printf("***Invalid vdev: %s\n", vdev); 2460 free(dup); 2461 return; 2462 } else { 2463 if (vd->vdev_path) 2464 (void) fprintf(stderr, "Found vdev: %s\n", 2465 vd->vdev_path); 2466 else 2467 (void) fprintf(stderr, "Found vdev type: %s\n", 2468 vd->vdev_ops->vdev_op_type); 2469 } 2470 2471 psize = size; 2472 lsize = size; 2473 2474 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 2475 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 2476 2477 BP_ZERO(bp); 2478 2479 DVA_SET_VDEV(&dva[0], vd->vdev_id); 2480 DVA_SET_OFFSET(&dva[0], offset); 2481 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 2482 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 2483 2484 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 2485 2486 BP_SET_LSIZE(bp, lsize); 2487 BP_SET_PSIZE(bp, psize); 2488 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 2489 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 2490 BP_SET_TYPE(bp, DMU_OT_NONE); 2491 BP_SET_LEVEL(bp, 0); 2492 BP_SET_DEDUP(bp, 0); 2493 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 2494 2495 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 2496 zio = zio_root(spa, NULL, NULL, 0); 2497 2498 if (vd == vd->vdev_top) { 2499 /* 2500 * Treat this as a normal block read. 2501 */ 2502 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL, 2503 ZIO_PRIORITY_SYNC_READ, 2504 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 2505 } else { 2506 /* 2507 * Treat this as a vdev child I/O. 2508 */ 2509 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize, 2510 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 2511 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 2512 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 2513 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL)); 2514 } 2515 2516 error = zio_wait(zio); 2517 spa_config_exit(spa, SCL_STATE, FTAG); 2518 2519 if (error) { 2520 (void) printf("Read of %s failed, error: %d\n", thing, error); 2521 goto out; 2522 } 2523 2524 if (flags & ZDB_FLAG_DECOMPRESS) { 2525 /* 2526 * We don't know how the data was compressed, so just try 2527 * every decompress function at every inflated blocksize. 2528 */ 2529 enum zio_compress c; 2530 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 2531 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 2532 2533 bcopy(pbuf, pbuf2, psize); 2534 2535 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize, 2536 SPA_MAXBLOCKSIZE - psize) == 0); 2537 2538 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 2539 SPA_MAXBLOCKSIZE - psize) == 0); 2540 2541 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 2542 lsize -= SPA_MINBLOCKSIZE) { 2543 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 2544 if (zio_decompress_data(c, pbuf, lbuf, 2545 psize, lsize) == 0 && 2546 zio_decompress_data(c, pbuf2, lbuf2, 2547 psize, lsize) == 0 && 2548 bcmp(lbuf, lbuf2, lsize) == 0) 2549 break; 2550 } 2551 if (c != ZIO_COMPRESS_FUNCTIONS) 2552 break; 2553 lsize -= SPA_MINBLOCKSIZE; 2554 } 2555 2556 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 2557 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 2558 2559 if (lsize <= psize) { 2560 (void) printf("Decompress of %s failed\n", thing); 2561 goto out; 2562 } 2563 buf = lbuf; 2564 size = lsize; 2565 } else { 2566 buf = pbuf; 2567 size = psize; 2568 } 2569 2570 if (flags & ZDB_FLAG_PRINT_BLKPTR) 2571 zdb_print_blkptr((blkptr_t *)(void *) 2572 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 2573 else if (flags & ZDB_FLAG_RAW) 2574 zdb_dump_block_raw(buf, size, flags); 2575 else if (flags & ZDB_FLAG_INDIRECT) 2576 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 2577 flags); 2578 else if (flags & ZDB_FLAG_GBH) 2579 zdb_dump_gbh(buf, flags); 2580 else 2581 zdb_dump_block(thing, buf, size, flags); 2582 2583 out: 2584 umem_free(pbuf, SPA_MAXBLOCKSIZE); 2585 umem_free(lbuf, SPA_MAXBLOCKSIZE); 2586 free(dup); 2587 } 2588 2589 static boolean_t 2590 pool_match(nvlist_t *cfg, char *tgt) 2591 { 2592 uint64_t v, guid = strtoull(tgt, NULL, 0); 2593 char *s; 2594 2595 if (guid != 0) { 2596 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) 2597 return (v == guid); 2598 } else { 2599 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) 2600 return (strcmp(s, tgt) == 0); 2601 } 2602 return (B_FALSE); 2603 } 2604 2605 static char * 2606 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) 2607 { 2608 nvlist_t *pools; 2609 nvlist_t *match = NULL; 2610 char *name = NULL; 2611 char *sepp = NULL; 2612 char sep; 2613 int count = 0; 2614 2615 if ((sepp = strpbrk(*target, "/@")) != NULL) { 2616 sep = *sepp; 2617 *sepp = '\0'; 2618 } 2619 2620 pools = zpool_find_import_activeok(g_zfs, dirc, dirv); 2621 2622 if (pools != NULL) { 2623 nvpair_t *elem = NULL; 2624 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 2625 verify(nvpair_value_nvlist(elem, configp) == 0); 2626 if (pool_match(*configp, *target)) { 2627 count++; 2628 if (match != NULL) { 2629 /* print previously found config */ 2630 if (name != NULL) { 2631 (void) printf("%s\n", name); 2632 dump_nvlist(match, 8); 2633 name = NULL; 2634 } 2635 (void) printf("%s\n", 2636 nvpair_name(elem)); 2637 dump_nvlist(*configp, 8); 2638 } else { 2639 match = *configp; 2640 name = nvpair_name(elem); 2641 } 2642 } 2643 } 2644 } 2645 if (count > 1) 2646 (void) fatal("\tMatched %d pools - use pool GUID " 2647 "instead of pool name or \n" 2648 "\tpool name part of a dataset name to select pool", count); 2649 2650 if (sepp) 2651 *sepp = sep; 2652 /* 2653 * If pool GUID was specified for pool id, replace it with pool name 2654 */ 2655 if (name && (strstr(*target, name) != *target)) { 2656 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); 2657 2658 *target = umem_alloc(sz, UMEM_NOFAIL); 2659 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); 2660 } 2661 2662 *configp = name ? match : NULL; 2663 2664 return (name); 2665 } 2666 2667 int 2668 main(int argc, char **argv) 2669 { 2670 int i, c; 2671 struct rlimit rl = { 1024, 1024 }; 2672 spa_t *spa = NULL; 2673 objset_t *os = NULL; 2674 int dump_all = 1; 2675 int verbose = 0; 2676 int error; 2677 char **searchdirs = NULL; 2678 int nsearch = 0; 2679 char *target; 2680 nvlist_t *policy = NULL; 2681 uint64_t max_txg = UINT64_MAX; 2682 2683 (void) setrlimit(RLIMIT_NOFILE, &rl); 2684 (void) enable_extended_FILE_stdio(-1, -1); 2685 2686 dprintf_setup(&argc, argv); 2687 2688 while ((c = getopt(argc, argv, "bcdhilmsuCDRSLevp:t:U:")) != -1) { 2689 switch (c) { 2690 case 'b': 2691 case 'c': 2692 case 'd': 2693 case 'h': 2694 case 'i': 2695 case 'l': 2696 case 'm': 2697 case 's': 2698 case 'u': 2699 case 'C': 2700 case 'D': 2701 case 'R': 2702 case 'S': 2703 dump_opt[c]++; 2704 dump_all = 0; 2705 break; 2706 case 'L': 2707 case 'e': 2708 dump_opt[c]++; 2709 break; 2710 case 'v': 2711 verbose++; 2712 break; 2713 case 'p': 2714 if (searchdirs == NULL) { 2715 searchdirs = umem_alloc(sizeof (char *), 2716 UMEM_NOFAIL); 2717 } else { 2718 char **tmp = umem_alloc((nsearch + 1) * 2719 sizeof (char *), UMEM_NOFAIL); 2720 bcopy(searchdirs, tmp, nsearch * 2721 sizeof (char *)); 2722 umem_free(searchdirs, 2723 nsearch * sizeof (char *)); 2724 searchdirs = tmp; 2725 } 2726 searchdirs[nsearch++] = optarg; 2727 break; 2728 case 't': 2729 max_txg = strtoull(optarg, NULL, 0); 2730 if (max_txg < TXG_INITIAL) { 2731 (void) fprintf(stderr, "incorrect txg " 2732 "specified: %s\n", optarg); 2733 usage(); 2734 } 2735 break; 2736 case 'U': 2737 spa_config_path = optarg; 2738 break; 2739 default: 2740 usage(); 2741 break; 2742 } 2743 } 2744 2745 if (!dump_opt['e'] && searchdirs != NULL) { 2746 (void) fprintf(stderr, "-p option requires use of -e\n"); 2747 usage(); 2748 } 2749 2750 kernel_init(FREAD); 2751 g_zfs = libzfs_init(); 2752 ASSERT(g_zfs != NULL); 2753 2754 if (dump_all) 2755 verbose = MAX(verbose, 1); 2756 2757 for (c = 0; c < 256; c++) { 2758 if (dump_all && !strchr("elLRS", c)) 2759 dump_opt[c] = 1; 2760 if (dump_opt[c]) 2761 dump_opt[c] += verbose; 2762 } 2763 2764 argc -= optind; 2765 argv += optind; 2766 2767 if (argc < 2 && dump_opt['R']) 2768 usage(); 2769 if (argc < 1) { 2770 if (!dump_opt['e'] && dump_opt['C']) { 2771 dump_cachefile(spa_config_path); 2772 return (0); 2773 } 2774 usage(); 2775 } 2776 2777 if (dump_opt['l']) { 2778 dump_label(argv[0]); 2779 return (0); 2780 } 2781 2782 error = 0; 2783 target = argv[0]; 2784 2785 VERIFY(nvlist_alloc(&policy, NV_UNIQUE_NAME, 0) == 0); 2786 2787 if (dump_opt['e']) { 2788 nvlist_t *cfg = NULL; 2789 char *name = find_zpool(&target, &cfg, nsearch, searchdirs); 2790 2791 error = ENOENT; 2792 if (name) { 2793 if (dump_opt['C'] > 1) { 2794 (void) printf("\nConfiguration for import:\n"); 2795 dump_nvlist(cfg, 8); 2796 } 2797 if (nvlist_add_uint64(policy, 2798 ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 || 2799 nvlist_add_nvlist(cfg, 2800 ZPOOL_REWIND_POLICY, policy) != 0) { 2801 fatal("can't open '%s': %s", 2802 target, strerror(ENOMEM)); 2803 } 2804 if ((error = spa_import(name, cfg, NULL)) != 0) 2805 error = spa_import_verbatim(name, cfg, NULL); 2806 } 2807 } else { 2808 VERIFY(nvlist_add_uint64(policy, ZPOOL_REWIND_META_THRESH, 2809 UINT64_MAX) == 0); 2810 } 2811 2812 if (error == 0) { 2813 if (strpbrk(target, "/@") == NULL || dump_opt['R']) { 2814 error = spa_open_rewind(target, &spa, FTAG, policy, 2815 NULL); 2816 if (error) { 2817 /* 2818 * If we're missing the log device then 2819 * try opening the pool after clearing the 2820 * log state. 2821 */ 2822 mutex_enter(&spa_namespace_lock); 2823 if ((spa = spa_lookup(target)) != NULL && 2824 spa->spa_log_state == SPA_LOG_MISSING) { 2825 spa->spa_log_state = SPA_LOG_CLEAR; 2826 error = 0; 2827 } 2828 mutex_exit(&spa_namespace_lock); 2829 2830 if (!error) { 2831 error = spa_open_rewind(target, &spa, 2832 FTAG, policy, NULL); 2833 } 2834 } 2835 } else { 2836 error = dmu_objset_own(target, DMU_OST_ANY, 2837 B_TRUE, FTAG, &os); 2838 } 2839 } 2840 nvlist_free(policy); 2841 2842 if (error) 2843 fatal("can't open '%s': %s", target, strerror(error)); 2844 2845 argv++; 2846 argc--; 2847 if (!dump_opt['R']) { 2848 if (argc > 0) { 2849 zopt_objects = argc; 2850 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 2851 for (i = 0; i < zopt_objects; i++) { 2852 errno = 0; 2853 zopt_object[i] = strtoull(argv[i], NULL, 0); 2854 if (zopt_object[i] == 0 && errno != 0) 2855 fatal("bad number %s: %s", 2856 argv[i], strerror(errno)); 2857 } 2858 } 2859 (os != NULL) ? dump_dir(os) : dump_zpool(spa); 2860 } else { 2861 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 2862 flagbits['c'] = ZDB_FLAG_CHECKSUM; 2863 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 2864 flagbits['e'] = ZDB_FLAG_BSWAP; 2865 flagbits['g'] = ZDB_FLAG_GBH; 2866 flagbits['i'] = ZDB_FLAG_INDIRECT; 2867 flagbits['p'] = ZDB_FLAG_PHYS; 2868 flagbits['r'] = ZDB_FLAG_RAW; 2869 2870 for (i = 0; i < argc; i++) 2871 zdb_read_block(argv[i], spa); 2872 } 2873 2874 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG); 2875 2876 fuid_table_destroy(); 2877 2878 libzfs_fini(g_zfs); 2879 kernel_fini(); 2880 2881 return (0); 2882 } 2883