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) 2013 by Delphix. All rights reserved. 25 */ 26 27 #include <stdio.h> 28 #include <unistd.h> 29 #include <stdio_ext.h> 30 #include <stdlib.h> 31 #include <ctype.h> 32 #include <sys/zfs_context.h> 33 #include <sys/spa.h> 34 #include <sys/spa_impl.h> 35 #include <sys/dmu.h> 36 #include <sys/zap.h> 37 #include <sys/fs/zfs.h> 38 #include <sys/zfs_znode.h> 39 #include <sys/zfs_sa.h> 40 #include <sys/sa.h> 41 #include <sys/sa_impl.h> 42 #include <sys/vdev.h> 43 #include <sys/vdev_impl.h> 44 #include <sys/metaslab_impl.h> 45 #include <sys/dmu_objset.h> 46 #include <sys/dsl_dir.h> 47 #include <sys/dsl_dataset.h> 48 #include <sys/dsl_pool.h> 49 #include <sys/dbuf.h> 50 #include <sys/zil.h> 51 #include <sys/zil_impl.h> 52 #include <sys/stat.h> 53 #include <sys/resource.h> 54 #include <sys/dmu_traverse.h> 55 #include <sys/zio_checksum.h> 56 #include <sys/zio_compress.h> 57 #include <sys/zfs_fuid.h> 58 #include <sys/arc.h> 59 #include <sys/ddt.h> 60 #include <sys/zfeature.h> 61 #include <zfs_comutil.h> 62 #undef ZFS_MAXNAMELEN 63 #undef verify 64 #include <libzfs.h> 65 66 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \ 67 zio_compress_table[(idx)].ci_name : "UNKNOWN") 68 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \ 69 zio_checksum_table[(idx)].ci_name : "UNKNOWN") 70 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \ 71 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \ 72 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN") 73 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \ 74 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \ 75 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES)) 76 77 #ifndef lint 78 extern int zfs_recover; 79 #else 80 int zfs_recover; 81 #endif 82 83 const char cmdname[] = "zdb"; 84 uint8_t dump_opt[256]; 85 86 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size); 87 88 extern void dump_intent_log(zilog_t *); 89 uint64_t *zopt_object = NULL; 90 int zopt_objects = 0; 91 libzfs_handle_t *g_zfs; 92 uint64_t max_inflight = 200; 93 94 /* 95 * These libumem hooks provide a reasonable set of defaults for the allocator's 96 * debugging facilities. 97 */ 98 const char * 99 _umem_debug_init() 100 { 101 return ("default,verbose"); /* $UMEM_DEBUG setting */ 102 } 103 104 const char * 105 _umem_logging_init(void) 106 { 107 return ("fail,contents"); /* $UMEM_LOGGING setting */ 108 } 109 110 static void 111 usage(void) 112 { 113 (void) fprintf(stderr, 114 "Usage: %s [-CumdibcsDvhLXFPA] [-t txg] [-e [-p path...]] " 115 "[-U config] [-M inflight I/Os] poolname [object...]\n" 116 " %s [-divPA] [-e -p path...] [-U config] dataset " 117 "[object...]\n" 118 " %s -m [-LXFPA] [-t txg] [-e [-p path...]] [-U config] " 119 "poolname [vdev [metaslab...]]\n" 120 " %s -R [-A] [-e [-p path...]] poolname " 121 "vdev:offset:size[:flags]\n" 122 " %s -S [-PA] [-e [-p path...]] [-U config] poolname\n" 123 " %s -l [-uA] device\n" 124 " %s -C [-A] [-U config]\n\n", 125 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname); 126 127 (void) fprintf(stderr, " Dataset name must include at least one " 128 "separator character '/' or '@'\n"); 129 (void) fprintf(stderr, " If dataset name is specified, only that " 130 "dataset is dumped\n"); 131 (void) fprintf(stderr, " If object numbers are specified, only " 132 "those objects are dumped\n\n"); 133 (void) fprintf(stderr, " Options to control amount of output:\n"); 134 (void) fprintf(stderr, " -u uberblock\n"); 135 (void) fprintf(stderr, " -d dataset(s)\n"); 136 (void) fprintf(stderr, " -i intent logs\n"); 137 (void) fprintf(stderr, " -C config (or cachefile if alone)\n"); 138 (void) fprintf(stderr, " -h pool history\n"); 139 (void) fprintf(stderr, " -b block statistics\n"); 140 (void) fprintf(stderr, " -m metaslabs\n"); 141 (void) fprintf(stderr, " -c checksum all metadata (twice for " 142 "all data) blocks\n"); 143 (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); 144 (void) fprintf(stderr, " -D dedup statistics\n"); 145 (void) fprintf(stderr, " -S simulate dedup to measure effect\n"); 146 (void) fprintf(stderr, " -v verbose (applies to all others)\n"); 147 (void) fprintf(stderr, " -l dump label contents\n"); 148 (void) fprintf(stderr, " -L disable leak tracking (do not " 149 "load spacemaps)\n"); 150 (void) fprintf(stderr, " -R read and display block from a " 151 "device\n\n"); 152 (void) fprintf(stderr, " Below options are intended for use " 153 "with other options (except -l):\n"); 154 (void) fprintf(stderr, " -A ignore assertions (-A), enable " 155 "panic recovery (-AA) or both (-AAA)\n"); 156 (void) fprintf(stderr, " -F attempt automatic rewind within " 157 "safe range of transaction groups\n"); 158 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate " 159 "cachefile\n"); 160 (void) fprintf(stderr, " -X attempt extreme rewind (does not " 161 "work with dataset)\n"); 162 (void) fprintf(stderr, " -e pool is exported/destroyed/" 163 "has altroot/not in a cachefile\n"); 164 (void) fprintf(stderr, " -p <path> -- use one or more with " 165 "-e to specify path to vdev dir\n"); 166 (void) fprintf(stderr, " -P print numbers in parseable form\n"); 167 (void) fprintf(stderr, " -t <txg> -- highest txg to use when " 168 "searching for uberblocks\n"); 169 (void) fprintf(stderr, " -M <number of inflight I/Os> -- " 170 "specify the maximum number of checksumming I/Os [default is 200]"); 171 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 172 "to make only that option verbose\n"); 173 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 174 exit(1); 175 } 176 177 /* 178 * Called for usage errors that are discovered after a call to spa_open(), 179 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. 180 */ 181 182 static void 183 fatal(const char *fmt, ...) 184 { 185 va_list ap; 186 187 va_start(ap, fmt); 188 (void) fprintf(stderr, "%s: ", cmdname); 189 (void) vfprintf(stderr, fmt, ap); 190 va_end(ap); 191 (void) fprintf(stderr, "\n"); 192 193 exit(1); 194 } 195 196 /* ARGSUSED */ 197 static void 198 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 199 { 200 nvlist_t *nv; 201 size_t nvsize = *(uint64_t *)data; 202 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 203 204 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH)); 205 206 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 207 208 umem_free(packed, nvsize); 209 210 dump_nvlist(nv, 8); 211 212 nvlist_free(nv); 213 } 214 215 /* ARGSUSED */ 216 static void 217 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size) 218 { 219 spa_history_phys_t *shp = data; 220 221 if (shp == NULL) 222 return; 223 224 (void) printf("\t\tpool_create_len = %llu\n", 225 (u_longlong_t)shp->sh_pool_create_len); 226 (void) printf("\t\tphys_max_off = %llu\n", 227 (u_longlong_t)shp->sh_phys_max_off); 228 (void) printf("\t\tbof = %llu\n", 229 (u_longlong_t)shp->sh_bof); 230 (void) printf("\t\teof = %llu\n", 231 (u_longlong_t)shp->sh_eof); 232 (void) printf("\t\trecords_lost = %llu\n", 233 (u_longlong_t)shp->sh_records_lost); 234 } 235 236 static void 237 zdb_nicenum(uint64_t num, char *buf) 238 { 239 if (dump_opt['P']) 240 (void) sprintf(buf, "%llu", (longlong_t)num); 241 else 242 nicenum(num, buf); 243 } 244 245 const char histo_stars[] = "****************************************"; 246 const int histo_width = sizeof (histo_stars) - 1; 247 248 static void 249 dump_histogram(const uint64_t *histo, int size) 250 { 251 int i; 252 int minidx = size - 1; 253 int maxidx = 0; 254 uint64_t max = 0; 255 256 for (i = 0; i < size; i++) { 257 if (histo[i] > max) 258 max = histo[i]; 259 if (histo[i] > 0 && i > maxidx) 260 maxidx = i; 261 if (histo[i] > 0 && i < minidx) 262 minidx = i; 263 } 264 265 if (max < histo_width) 266 max = histo_width; 267 268 for (i = minidx; i <= maxidx; i++) { 269 (void) printf("\t\t\t%3u: %6llu %s\n", 270 i, (u_longlong_t)histo[i], 271 &histo_stars[(max - histo[i]) * histo_width / max]); 272 } 273 } 274 275 static void 276 dump_zap_stats(objset_t *os, uint64_t object) 277 { 278 int error; 279 zap_stats_t zs; 280 281 error = zap_get_stats(os, object, &zs); 282 if (error) 283 return; 284 285 if (zs.zs_ptrtbl_len == 0) { 286 ASSERT(zs.zs_num_blocks == 1); 287 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 288 (u_longlong_t)zs.zs_blocksize, 289 (u_longlong_t)zs.zs_num_entries); 290 return; 291 } 292 293 (void) printf("\tFat ZAP stats:\n"); 294 295 (void) printf("\t\tPointer table:\n"); 296 (void) printf("\t\t\t%llu elements\n", 297 (u_longlong_t)zs.zs_ptrtbl_len); 298 (void) printf("\t\t\tzt_blk: %llu\n", 299 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 300 (void) printf("\t\t\tzt_numblks: %llu\n", 301 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 302 (void) printf("\t\t\tzt_shift: %llu\n", 303 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 304 (void) printf("\t\t\tzt_blks_copied: %llu\n", 305 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 306 (void) printf("\t\t\tzt_nextblk: %llu\n", 307 (u_longlong_t)zs.zs_ptrtbl_nextblk); 308 309 (void) printf("\t\tZAP entries: %llu\n", 310 (u_longlong_t)zs.zs_num_entries); 311 (void) printf("\t\tLeaf blocks: %llu\n", 312 (u_longlong_t)zs.zs_num_leafs); 313 (void) printf("\t\tTotal blocks: %llu\n", 314 (u_longlong_t)zs.zs_num_blocks); 315 (void) printf("\t\tzap_block_type: 0x%llx\n", 316 (u_longlong_t)zs.zs_block_type); 317 (void) printf("\t\tzap_magic: 0x%llx\n", 318 (u_longlong_t)zs.zs_magic); 319 (void) printf("\t\tzap_salt: 0x%llx\n", 320 (u_longlong_t)zs.zs_salt); 321 322 (void) printf("\t\tLeafs with 2^n pointers:\n"); 323 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE); 324 325 (void) printf("\t\tBlocks with n*5 entries:\n"); 326 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE); 327 328 (void) printf("\t\tBlocks n/10 full:\n"); 329 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE); 330 331 (void) printf("\t\tEntries with n chunks:\n"); 332 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE); 333 334 (void) printf("\t\tBuckets with n entries:\n"); 335 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE); 336 } 337 338 /*ARGSUSED*/ 339 static void 340 dump_none(objset_t *os, uint64_t object, void *data, size_t size) 341 { 342 } 343 344 /*ARGSUSED*/ 345 static void 346 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size) 347 { 348 (void) printf("\tUNKNOWN OBJECT TYPE\n"); 349 } 350 351 /*ARGSUSED*/ 352 void 353 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 354 { 355 } 356 357 /*ARGSUSED*/ 358 static void 359 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 360 { 361 } 362 363 /*ARGSUSED*/ 364 static void 365 dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 366 { 367 zap_cursor_t zc; 368 zap_attribute_t attr; 369 void *prop; 370 int i; 371 372 dump_zap_stats(os, object); 373 (void) printf("\n"); 374 375 for (zap_cursor_init(&zc, os, object); 376 zap_cursor_retrieve(&zc, &attr) == 0; 377 zap_cursor_advance(&zc)) { 378 (void) printf("\t\t%s = ", attr.za_name); 379 if (attr.za_num_integers == 0) { 380 (void) printf("\n"); 381 continue; 382 } 383 prop = umem_zalloc(attr.za_num_integers * 384 attr.za_integer_length, UMEM_NOFAIL); 385 (void) zap_lookup(os, object, attr.za_name, 386 attr.za_integer_length, attr.za_num_integers, prop); 387 if (attr.za_integer_length == 1) { 388 (void) printf("%s", (char *)prop); 389 } else { 390 for (i = 0; i < attr.za_num_integers; i++) { 391 switch (attr.za_integer_length) { 392 case 2: 393 (void) printf("%u ", 394 ((uint16_t *)prop)[i]); 395 break; 396 case 4: 397 (void) printf("%u ", 398 ((uint32_t *)prop)[i]); 399 break; 400 case 8: 401 (void) printf("%lld ", 402 (u_longlong_t)((int64_t *)prop)[i]); 403 break; 404 } 405 } 406 } 407 (void) printf("\n"); 408 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 409 } 410 zap_cursor_fini(&zc); 411 } 412 413 /*ARGSUSED*/ 414 static void 415 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size) 416 { 417 dump_zap_stats(os, object); 418 /* contents are printed elsewhere, properly decoded */ 419 } 420 421 /*ARGSUSED*/ 422 static void 423 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size) 424 { 425 zap_cursor_t zc; 426 zap_attribute_t attr; 427 428 dump_zap_stats(os, object); 429 (void) printf("\n"); 430 431 for (zap_cursor_init(&zc, os, object); 432 zap_cursor_retrieve(&zc, &attr) == 0; 433 zap_cursor_advance(&zc)) { 434 (void) printf("\t\t%s = ", attr.za_name); 435 if (attr.za_num_integers == 0) { 436 (void) printf("\n"); 437 continue; 438 } 439 (void) printf(" %llx : [%d:%d:%d]\n", 440 (u_longlong_t)attr.za_first_integer, 441 (int)ATTR_LENGTH(attr.za_first_integer), 442 (int)ATTR_BSWAP(attr.za_first_integer), 443 (int)ATTR_NUM(attr.za_first_integer)); 444 } 445 zap_cursor_fini(&zc); 446 } 447 448 /*ARGSUSED*/ 449 static void 450 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size) 451 { 452 zap_cursor_t zc; 453 zap_attribute_t attr; 454 uint16_t *layout_attrs; 455 int i; 456 457 dump_zap_stats(os, object); 458 (void) printf("\n"); 459 460 for (zap_cursor_init(&zc, os, object); 461 zap_cursor_retrieve(&zc, &attr) == 0; 462 zap_cursor_advance(&zc)) { 463 (void) printf("\t\t%s = [", attr.za_name); 464 if (attr.za_num_integers == 0) { 465 (void) printf("\n"); 466 continue; 467 } 468 469 VERIFY(attr.za_integer_length == 2); 470 layout_attrs = umem_zalloc(attr.za_num_integers * 471 attr.za_integer_length, UMEM_NOFAIL); 472 473 VERIFY(zap_lookup(os, object, attr.za_name, 474 attr.za_integer_length, 475 attr.za_num_integers, layout_attrs) == 0); 476 477 for (i = 0; i != attr.za_num_integers; i++) 478 (void) printf(" %d ", (int)layout_attrs[i]); 479 (void) printf("]\n"); 480 umem_free(layout_attrs, 481 attr.za_num_integers * attr.za_integer_length); 482 } 483 zap_cursor_fini(&zc); 484 } 485 486 /*ARGSUSED*/ 487 static void 488 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 489 { 490 zap_cursor_t zc; 491 zap_attribute_t attr; 492 const char *typenames[] = { 493 /* 0 */ "not specified", 494 /* 1 */ "FIFO", 495 /* 2 */ "Character Device", 496 /* 3 */ "3 (invalid)", 497 /* 4 */ "Directory", 498 /* 5 */ "5 (invalid)", 499 /* 6 */ "Block Device", 500 /* 7 */ "7 (invalid)", 501 /* 8 */ "Regular File", 502 /* 9 */ "9 (invalid)", 503 /* 10 */ "Symbolic Link", 504 /* 11 */ "11 (invalid)", 505 /* 12 */ "Socket", 506 /* 13 */ "Door", 507 /* 14 */ "Event Port", 508 /* 15 */ "15 (invalid)", 509 }; 510 511 dump_zap_stats(os, object); 512 (void) printf("\n"); 513 514 for (zap_cursor_init(&zc, os, object); 515 zap_cursor_retrieve(&zc, &attr) == 0; 516 zap_cursor_advance(&zc)) { 517 (void) printf("\t\t%s = %lld (type: %s)\n", 518 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 519 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 520 } 521 zap_cursor_fini(&zc); 522 } 523 524 static void 525 dump_spacemap(objset_t *os, space_map_obj_t *smo, space_map_t *sm) 526 { 527 uint64_t alloc, offset, entry; 528 uint8_t mapshift = sm->sm_shift; 529 uint64_t mapstart = sm->sm_start; 530 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 531 "INVALID", "INVALID", "INVALID", "INVALID" }; 532 533 if (smo->smo_object == 0) 534 return; 535 536 /* 537 * Print out the freelist entries in both encoded and decoded form. 538 */ 539 alloc = 0; 540 for (offset = 0; offset < smo->smo_objsize; offset += sizeof (entry)) { 541 VERIFY3U(0, ==, dmu_read(os, smo->smo_object, offset, 542 sizeof (entry), &entry, DMU_READ_PREFETCH)); 543 if (SM_DEBUG_DECODE(entry)) { 544 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n", 545 (u_longlong_t)(offset / sizeof (entry)), 546 ddata[SM_DEBUG_ACTION_DECODE(entry)], 547 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry), 548 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry)); 549 } else { 550 (void) printf("\t [%6llu] %c range:" 551 " %010llx-%010llx size: %06llx\n", 552 (u_longlong_t)(offset / sizeof (entry)), 553 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 554 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 555 mapshift) + mapstart), 556 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 557 mapshift) + mapstart + (SM_RUN_DECODE(entry) << 558 mapshift)), 559 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift)); 560 if (SM_TYPE_DECODE(entry) == SM_ALLOC) 561 alloc += SM_RUN_DECODE(entry) << mapshift; 562 else 563 alloc -= SM_RUN_DECODE(entry) << mapshift; 564 } 565 } 566 if (alloc != smo->smo_alloc) { 567 (void) printf("space_map_object alloc (%llu) INCONSISTENT " 568 "with space map summary (%llu)\n", 569 (u_longlong_t)smo->smo_alloc, (u_longlong_t)alloc); 570 } 571 } 572 573 static void 574 dump_metaslab_stats(metaslab_t *msp) 575 { 576 char maxbuf[32]; 577 space_map_t *sm = msp->ms_map; 578 avl_tree_t *t = sm->sm_pp_root; 579 int free_pct = sm->sm_space * 100 / sm->sm_size; 580 581 zdb_nicenum(space_map_maxsize(sm), maxbuf); 582 583 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", 584 "segments", avl_numnodes(t), "maxsize", maxbuf, 585 "freepct", free_pct); 586 } 587 588 static void 589 dump_metaslab(metaslab_t *msp) 590 { 591 vdev_t *vd = msp->ms_group->mg_vd; 592 spa_t *spa = vd->vdev_spa; 593 space_map_t *sm = msp->ms_map; 594 space_map_obj_t *smo = &msp->ms_smo; 595 char freebuf[32]; 596 597 zdb_nicenum(sm->sm_size - smo->smo_alloc, freebuf); 598 599 (void) printf( 600 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", 601 (u_longlong_t)(sm->sm_start / sm->sm_size), 602 (u_longlong_t)sm->sm_start, (u_longlong_t)smo->smo_object, freebuf); 603 604 if (dump_opt['m'] > 1 && !dump_opt['L']) { 605 mutex_enter(&msp->ms_lock); 606 space_map_load_wait(sm); 607 if (!sm->sm_loaded) 608 VERIFY(space_map_load(sm, zfs_metaslab_ops, 609 SM_FREE, smo, spa->spa_meta_objset) == 0); 610 dump_metaslab_stats(msp); 611 space_map_unload(sm); 612 mutex_exit(&msp->ms_lock); 613 } 614 615 if (dump_opt['d'] > 5 || dump_opt['m'] > 2) { 616 ASSERT(sm->sm_size == (1ULL << vd->vdev_ms_shift)); 617 618 mutex_enter(&msp->ms_lock); 619 dump_spacemap(spa->spa_meta_objset, smo, sm); 620 mutex_exit(&msp->ms_lock); 621 } 622 } 623 624 static void 625 print_vdev_metaslab_header(vdev_t *vd) 626 { 627 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n", 628 (u_longlong_t)vd->vdev_id, 629 "metaslabs", (u_longlong_t)vd->vdev_ms_count, 630 "offset", "spacemap", "free"); 631 (void) printf("\t%15s %19s %15s %10s\n", 632 "---------------", "-------------------", 633 "---------------", "-------------"); 634 } 635 636 static void 637 dump_metaslabs(spa_t *spa) 638 { 639 vdev_t *vd, *rvd = spa->spa_root_vdev; 640 uint64_t m, c = 0, children = rvd->vdev_children; 641 642 (void) printf("\nMetaslabs:\n"); 643 644 if (!dump_opt['d'] && zopt_objects > 0) { 645 c = zopt_object[0]; 646 647 if (c >= children) 648 (void) fatal("bad vdev id: %llu", (u_longlong_t)c); 649 650 if (zopt_objects > 1) { 651 vd = rvd->vdev_child[c]; 652 print_vdev_metaslab_header(vd); 653 654 for (m = 1; m < zopt_objects; m++) { 655 if (zopt_object[m] < vd->vdev_ms_count) 656 dump_metaslab( 657 vd->vdev_ms[zopt_object[m]]); 658 else 659 (void) fprintf(stderr, "bad metaslab " 660 "number %llu\n", 661 (u_longlong_t)zopt_object[m]); 662 } 663 (void) printf("\n"); 664 return; 665 } 666 children = c + 1; 667 } 668 for (; c < children; c++) { 669 vd = rvd->vdev_child[c]; 670 print_vdev_metaslab_header(vd); 671 672 for (m = 0; m < vd->vdev_ms_count; m++) 673 dump_metaslab(vd->vdev_ms[m]); 674 (void) printf("\n"); 675 } 676 } 677 678 static void 679 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) 680 { 681 const ddt_phys_t *ddp = dde->dde_phys; 682 const ddt_key_t *ddk = &dde->dde_key; 683 char *types[4] = { "ditto", "single", "double", "triple" }; 684 char blkbuf[BP_SPRINTF_LEN]; 685 blkptr_t blk; 686 687 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 688 if (ddp->ddp_phys_birth == 0) 689 continue; 690 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); 691 sprintf_blkptr(blkbuf, &blk); 692 (void) printf("index %llx refcnt %llu %s %s\n", 693 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, 694 types[p], blkbuf); 695 } 696 } 697 698 static void 699 dump_dedup_ratio(const ddt_stat_t *dds) 700 { 701 double rL, rP, rD, D, dedup, compress, copies; 702 703 if (dds->dds_blocks == 0) 704 return; 705 706 rL = (double)dds->dds_ref_lsize; 707 rP = (double)dds->dds_ref_psize; 708 rD = (double)dds->dds_ref_dsize; 709 D = (double)dds->dds_dsize; 710 711 dedup = rD / D; 712 compress = rL / rP; 713 copies = rD / rP; 714 715 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " 716 "dedup * compress / copies = %.2f\n\n", 717 dedup, compress, copies, dedup * compress / copies); 718 } 719 720 static void 721 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class) 722 { 723 char name[DDT_NAMELEN]; 724 ddt_entry_t dde; 725 uint64_t walk = 0; 726 dmu_object_info_t doi; 727 uint64_t count, dspace, mspace; 728 int error; 729 730 error = ddt_object_info(ddt, type, class, &doi); 731 732 if (error == ENOENT) 733 return; 734 ASSERT(error == 0); 735 736 if ((count = ddt_object_count(ddt, type, class)) == 0) 737 return; 738 739 dspace = doi.doi_physical_blocks_512 << 9; 740 mspace = doi.doi_fill_count * doi.doi_data_block_size; 741 742 ddt_object_name(ddt, type, class, name); 743 744 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n", 745 name, 746 (u_longlong_t)count, 747 (u_longlong_t)(dspace / count), 748 (u_longlong_t)(mspace / count)); 749 750 if (dump_opt['D'] < 3) 751 return; 752 753 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]); 754 755 if (dump_opt['D'] < 4) 756 return; 757 758 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE) 759 return; 760 761 (void) printf("%s contents:\n\n", name); 762 763 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0) 764 dump_dde(ddt, &dde, walk); 765 766 ASSERT(error == ENOENT); 767 768 (void) printf("\n"); 769 } 770 771 static void 772 dump_all_ddts(spa_t *spa) 773 { 774 ddt_histogram_t ddh_total = { 0 }; 775 ddt_stat_t dds_total = { 0 }; 776 777 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { 778 ddt_t *ddt = spa->spa_ddt[c]; 779 for (enum ddt_type type = 0; type < DDT_TYPES; type++) { 780 for (enum ddt_class class = 0; class < DDT_CLASSES; 781 class++) { 782 dump_ddt(ddt, type, class); 783 } 784 } 785 } 786 787 ddt_get_dedup_stats(spa, &dds_total); 788 789 if (dds_total.dds_blocks == 0) { 790 (void) printf("All DDTs are empty\n"); 791 return; 792 } 793 794 (void) printf("\n"); 795 796 if (dump_opt['D'] > 1) { 797 (void) printf("DDT histogram (aggregated over all DDTs):\n"); 798 ddt_get_dedup_histogram(spa, &ddh_total); 799 zpool_dump_ddt(&dds_total, &ddh_total); 800 } 801 802 dump_dedup_ratio(&dds_total); 803 } 804 805 static void 806 dump_dtl_seg(space_map_t *sm, uint64_t start, uint64_t size) 807 { 808 char *prefix = (void *)sm; 809 810 (void) printf("%s [%llu,%llu) length %llu\n", 811 prefix, 812 (u_longlong_t)start, 813 (u_longlong_t)(start + size), 814 (u_longlong_t)(size)); 815 } 816 817 static void 818 dump_dtl(vdev_t *vd, int indent) 819 { 820 spa_t *spa = vd->vdev_spa; 821 boolean_t required; 822 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" }; 823 char prefix[256]; 824 825 spa_vdev_state_enter(spa, SCL_NONE); 826 required = vdev_dtl_required(vd); 827 (void) spa_vdev_state_exit(spa, NULL, 0); 828 829 if (indent == 0) 830 (void) printf("\nDirty time logs:\n\n"); 831 832 (void) printf("\t%*s%s [%s]\n", indent, "", 833 vd->vdev_path ? vd->vdev_path : 834 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 835 required ? "DTL-required" : "DTL-expendable"); 836 837 for (int t = 0; t < DTL_TYPES; t++) { 838 space_map_t *sm = &vd->vdev_dtl[t]; 839 if (sm->sm_space == 0) 840 continue; 841 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 842 indent + 2, "", name[t]); 843 mutex_enter(sm->sm_lock); 844 space_map_walk(sm, dump_dtl_seg, (void *)prefix); 845 mutex_exit(sm->sm_lock); 846 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 847 dump_spacemap(spa->spa_meta_objset, 848 &vd->vdev_dtl_smo, sm); 849 } 850 851 for (int c = 0; c < vd->vdev_children; c++) 852 dump_dtl(vd->vdev_child[c], indent + 4); 853 } 854 855 static void 856 dump_history(spa_t *spa) 857 { 858 nvlist_t **events = NULL; 859 char buf[SPA_MAXBLOCKSIZE]; 860 uint64_t resid, len, off = 0; 861 uint_t num = 0; 862 int error; 863 time_t tsec; 864 struct tm t; 865 char tbuf[30]; 866 char internalstr[MAXPATHLEN]; 867 868 do { 869 len = sizeof (buf); 870 871 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 872 (void) fprintf(stderr, "Unable to read history: " 873 "error %d\n", error); 874 return; 875 } 876 877 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 878 break; 879 880 off -= resid; 881 } while (len != 0); 882 883 (void) printf("\nHistory:\n"); 884 for (int i = 0; i < num; i++) { 885 uint64_t time, txg, ievent; 886 char *cmd, *intstr; 887 boolean_t printed = B_FALSE; 888 889 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, 890 &time) != 0) 891 goto next; 892 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, 893 &cmd) != 0) { 894 if (nvlist_lookup_uint64(events[i], 895 ZPOOL_HIST_INT_EVENT, &ievent) != 0) 896 goto next; 897 verify(nvlist_lookup_uint64(events[i], 898 ZPOOL_HIST_TXG, &txg) == 0); 899 verify(nvlist_lookup_string(events[i], 900 ZPOOL_HIST_INT_STR, &intstr) == 0); 901 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 902 goto next; 903 904 (void) snprintf(internalstr, 905 sizeof (internalstr), 906 "[internal %s txg:%lld] %s", 907 zfs_history_event_names[ievent], txg, 908 intstr); 909 cmd = internalstr; 910 } 911 tsec = time; 912 (void) localtime_r(&tsec, &t); 913 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 914 (void) printf("%s %s\n", tbuf, cmd); 915 printed = B_TRUE; 916 917 next: 918 if (dump_opt['h'] > 1) { 919 if (!printed) 920 (void) printf("unrecognized record:\n"); 921 dump_nvlist(events[i], 2); 922 } 923 } 924 } 925 926 /*ARGSUSED*/ 927 static void 928 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 929 { 930 } 931 932 static uint64_t 933 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, const zbookmark_t *zb) 934 { 935 if (dnp == NULL) { 936 ASSERT(zb->zb_level < 0); 937 if (zb->zb_object == 0) 938 return (zb->zb_blkid); 939 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 940 } 941 942 ASSERT(zb->zb_level >= 0); 943 944 return ((zb->zb_blkid << 945 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 946 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 947 } 948 949 static void 950 sprintf_blkptr_compact(char *blkbuf, const blkptr_t *bp) 951 { 952 const dva_t *dva = bp->blk_dva; 953 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 954 955 if (dump_opt['b'] >= 6) { 956 sprintf_blkptr(blkbuf, bp); 957 return; 958 } 959 960 blkbuf[0] = '\0'; 961 962 for (int i = 0; i < ndvas; i++) 963 (void) sprintf(blkbuf + strlen(blkbuf), "%llu:%llx:%llx ", 964 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 965 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 966 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 967 968 (void) sprintf(blkbuf + strlen(blkbuf), 969 "%llxL/%llxP F=%llu B=%llu/%llu", 970 (u_longlong_t)BP_GET_LSIZE(bp), 971 (u_longlong_t)BP_GET_PSIZE(bp), 972 (u_longlong_t)bp->blk_fill, 973 (u_longlong_t)bp->blk_birth, 974 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 975 } 976 977 static void 978 print_indirect(blkptr_t *bp, const zbookmark_t *zb, 979 const dnode_phys_t *dnp) 980 { 981 char blkbuf[BP_SPRINTF_LEN]; 982 int l; 983 984 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 985 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 986 987 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 988 989 ASSERT(zb->zb_level >= 0); 990 991 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 992 if (l == zb->zb_level) { 993 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 994 } else { 995 (void) printf(" "); 996 } 997 } 998 999 sprintf_blkptr_compact(blkbuf, bp); 1000 (void) printf("%s\n", blkbuf); 1001 } 1002 1003 static int 1004 visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 1005 blkptr_t *bp, const zbookmark_t *zb) 1006 { 1007 int err = 0; 1008 1009 if (bp->blk_birth == 0) 1010 return (0); 1011 1012 print_indirect(bp, zb, dnp); 1013 1014 if (BP_GET_LEVEL(bp) > 0) { 1015 uint32_t flags = ARC_WAIT; 1016 int i; 1017 blkptr_t *cbp; 1018 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 1019 arc_buf_t *buf; 1020 uint64_t fill = 0; 1021 1022 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 1023 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 1024 if (err) 1025 return (err); 1026 ASSERT(buf->b_data); 1027 1028 /* recursively visit blocks below this */ 1029 cbp = buf->b_data; 1030 for (i = 0; i < epb; i++, cbp++) { 1031 zbookmark_t czb; 1032 1033 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 1034 zb->zb_level - 1, 1035 zb->zb_blkid * epb + i); 1036 err = visit_indirect(spa, dnp, cbp, &czb); 1037 if (err) 1038 break; 1039 fill += cbp->blk_fill; 1040 } 1041 if (!err) 1042 ASSERT3U(fill, ==, bp->blk_fill); 1043 (void) arc_buf_remove_ref(buf, &buf); 1044 } 1045 1046 return (err); 1047 } 1048 1049 /*ARGSUSED*/ 1050 static void 1051 dump_indirect(dnode_t *dn) 1052 { 1053 dnode_phys_t *dnp = dn->dn_phys; 1054 int j; 1055 zbookmark_t czb; 1056 1057 (void) printf("Indirect blocks:\n"); 1058 1059 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 1060 dn->dn_object, dnp->dn_nlevels - 1, 0); 1061 for (j = 0; j < dnp->dn_nblkptr; j++) { 1062 czb.zb_blkid = j; 1063 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 1064 &dnp->dn_blkptr[j], &czb); 1065 } 1066 1067 (void) printf("\n"); 1068 } 1069 1070 /*ARGSUSED*/ 1071 static void 1072 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 1073 { 1074 dsl_dir_phys_t *dd = data; 1075 time_t crtime; 1076 char nice[32]; 1077 1078 if (dd == NULL) 1079 return; 1080 1081 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 1082 1083 crtime = dd->dd_creation_time; 1084 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1085 (void) printf("\t\thead_dataset_obj = %llu\n", 1086 (u_longlong_t)dd->dd_head_dataset_obj); 1087 (void) printf("\t\tparent_dir_obj = %llu\n", 1088 (u_longlong_t)dd->dd_parent_obj); 1089 (void) printf("\t\torigin_obj = %llu\n", 1090 (u_longlong_t)dd->dd_origin_obj); 1091 (void) printf("\t\tchild_dir_zapobj = %llu\n", 1092 (u_longlong_t)dd->dd_child_dir_zapobj); 1093 zdb_nicenum(dd->dd_used_bytes, nice); 1094 (void) printf("\t\tused_bytes = %s\n", nice); 1095 zdb_nicenum(dd->dd_compressed_bytes, nice); 1096 (void) printf("\t\tcompressed_bytes = %s\n", nice); 1097 zdb_nicenum(dd->dd_uncompressed_bytes, nice); 1098 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 1099 zdb_nicenum(dd->dd_quota, nice); 1100 (void) printf("\t\tquota = %s\n", nice); 1101 zdb_nicenum(dd->dd_reserved, nice); 1102 (void) printf("\t\treserved = %s\n", nice); 1103 (void) printf("\t\tprops_zapobj = %llu\n", 1104 (u_longlong_t)dd->dd_props_zapobj); 1105 (void) printf("\t\tdeleg_zapobj = %llu\n", 1106 (u_longlong_t)dd->dd_deleg_zapobj); 1107 (void) printf("\t\tflags = %llx\n", 1108 (u_longlong_t)dd->dd_flags); 1109 1110 #define DO(which) \ 1111 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \ 1112 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 1113 DO(HEAD); 1114 DO(SNAP); 1115 DO(CHILD); 1116 DO(CHILD_RSRV); 1117 DO(REFRSRV); 1118 #undef DO 1119 } 1120 1121 /*ARGSUSED*/ 1122 static void 1123 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 1124 { 1125 dsl_dataset_phys_t *ds = data; 1126 time_t crtime; 1127 char used[32], compressed[32], uncompressed[32], unique[32]; 1128 char blkbuf[BP_SPRINTF_LEN]; 1129 1130 if (ds == NULL) 1131 return; 1132 1133 ASSERT(size == sizeof (*ds)); 1134 crtime = ds->ds_creation_time; 1135 zdb_nicenum(ds->ds_referenced_bytes, used); 1136 zdb_nicenum(ds->ds_compressed_bytes, compressed); 1137 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed); 1138 zdb_nicenum(ds->ds_unique_bytes, unique); 1139 sprintf_blkptr(blkbuf, &ds->ds_bp); 1140 1141 (void) printf("\t\tdir_obj = %llu\n", 1142 (u_longlong_t)ds->ds_dir_obj); 1143 (void) printf("\t\tprev_snap_obj = %llu\n", 1144 (u_longlong_t)ds->ds_prev_snap_obj); 1145 (void) printf("\t\tprev_snap_txg = %llu\n", 1146 (u_longlong_t)ds->ds_prev_snap_txg); 1147 (void) printf("\t\tnext_snap_obj = %llu\n", 1148 (u_longlong_t)ds->ds_next_snap_obj); 1149 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1150 (u_longlong_t)ds->ds_snapnames_zapobj); 1151 (void) printf("\t\tnum_children = %llu\n", 1152 (u_longlong_t)ds->ds_num_children); 1153 (void) printf("\t\tuserrefs_obj = %llu\n", 1154 (u_longlong_t)ds->ds_userrefs_obj); 1155 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1156 (void) printf("\t\tcreation_txg = %llu\n", 1157 (u_longlong_t)ds->ds_creation_txg); 1158 (void) printf("\t\tdeadlist_obj = %llu\n", 1159 (u_longlong_t)ds->ds_deadlist_obj); 1160 (void) printf("\t\tused_bytes = %s\n", used); 1161 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1162 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1163 (void) printf("\t\tunique = %s\n", unique); 1164 (void) printf("\t\tfsid_guid = %llu\n", 1165 (u_longlong_t)ds->ds_fsid_guid); 1166 (void) printf("\t\tguid = %llu\n", 1167 (u_longlong_t)ds->ds_guid); 1168 (void) printf("\t\tflags = %llx\n", 1169 (u_longlong_t)ds->ds_flags); 1170 (void) printf("\t\tnext_clones_obj = %llu\n", 1171 (u_longlong_t)ds->ds_next_clones_obj); 1172 (void) printf("\t\tprops_obj = %llu\n", 1173 (u_longlong_t)ds->ds_props_obj); 1174 (void) printf("\t\tbp = %s\n", blkbuf); 1175 } 1176 1177 /* ARGSUSED */ 1178 static int 1179 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1180 { 1181 char blkbuf[BP_SPRINTF_LEN]; 1182 1183 if (bp->blk_birth != 0) { 1184 sprintf_blkptr(blkbuf, bp); 1185 (void) printf("\t%s\n", blkbuf); 1186 } 1187 return (0); 1188 } 1189 1190 static void 1191 dump_bptree(objset_t *os, uint64_t obj, char *name) 1192 { 1193 char bytes[32]; 1194 bptree_phys_t *bt; 1195 dmu_buf_t *db; 1196 1197 if (dump_opt['d'] < 3) 1198 return; 1199 1200 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 1201 bt = db->db_data; 1202 zdb_nicenum(bt->bt_bytes, bytes); 1203 (void) printf("\n %s: %llu datasets, %s\n", 1204 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 1205 dmu_buf_rele(db, FTAG); 1206 1207 if (dump_opt['d'] < 5) 1208 return; 1209 1210 (void) printf("\n"); 1211 1212 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 1213 } 1214 1215 /* ARGSUSED */ 1216 static int 1217 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1218 { 1219 char blkbuf[BP_SPRINTF_LEN]; 1220 1221 ASSERT(bp->blk_birth != 0); 1222 sprintf_blkptr_compact(blkbuf, bp); 1223 (void) printf("\t%s\n", blkbuf); 1224 return (0); 1225 } 1226 1227 static void 1228 dump_bpobj(bpobj_t *bpo, char *name, int indent) 1229 { 1230 char bytes[32]; 1231 char comp[32]; 1232 char uncomp[32]; 1233 1234 if (dump_opt['d'] < 3) 1235 return; 1236 1237 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes); 1238 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1239 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp); 1240 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp); 1241 (void) printf(" %*s: object %llu, %llu local blkptrs, " 1242 "%llu subobjs, %s (%s/%s comp)\n", 1243 indent * 8, name, 1244 (u_longlong_t)bpo->bpo_object, 1245 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1246 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 1247 bytes, comp, uncomp); 1248 1249 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1250 uint64_t subobj; 1251 bpobj_t subbpo; 1252 int error; 1253 VERIFY0(dmu_read(bpo->bpo_os, 1254 bpo->bpo_phys->bpo_subobjs, 1255 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1256 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1257 if (error != 0) { 1258 (void) printf("ERROR %u while trying to open " 1259 "subobj id %llu\n", 1260 error, (u_longlong_t)subobj); 1261 continue; 1262 } 1263 dump_bpobj(&subbpo, "subobj", indent + 1); 1264 bpobj_close(&subbpo); 1265 } 1266 } else { 1267 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", 1268 indent * 8, name, 1269 (u_longlong_t)bpo->bpo_object, 1270 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1271 bytes); 1272 } 1273 1274 if (dump_opt['d'] < 5) 1275 return; 1276 1277 1278 if (indent == 0) { 1279 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 1280 (void) printf("\n"); 1281 } 1282 } 1283 1284 static void 1285 dump_deadlist(dsl_deadlist_t *dl) 1286 { 1287 dsl_deadlist_entry_t *dle; 1288 uint64_t unused; 1289 char bytes[32]; 1290 char comp[32]; 1291 char uncomp[32]; 1292 1293 if (dump_opt['d'] < 3) 1294 return; 1295 1296 zdb_nicenum(dl->dl_phys->dl_used, bytes); 1297 zdb_nicenum(dl->dl_phys->dl_comp, comp); 1298 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp); 1299 (void) printf("\n Deadlist: %s (%s/%s comp)\n", 1300 bytes, comp, uncomp); 1301 1302 if (dump_opt['d'] < 4) 1303 return; 1304 1305 (void) printf("\n"); 1306 1307 /* force the tree to be loaded */ 1308 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); 1309 1310 for (dle = avl_first(&dl->dl_tree); dle; 1311 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1312 if (dump_opt['d'] >= 5) { 1313 char buf[128]; 1314 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ", 1315 (longlong_t)dle->dle_mintxg, 1316 (longlong_t)dle->dle_bpobj.bpo_object); 1317 1318 dump_bpobj(&dle->dle_bpobj, buf, 0); 1319 } else { 1320 (void) printf("mintxg %llu -> obj %llu\n", 1321 (longlong_t)dle->dle_mintxg, 1322 (longlong_t)dle->dle_bpobj.bpo_object); 1323 1324 } 1325 } 1326 } 1327 1328 static avl_tree_t idx_tree; 1329 static avl_tree_t domain_tree; 1330 static boolean_t fuid_table_loaded; 1331 static boolean_t sa_loaded; 1332 sa_attr_type_t *sa_attr_table; 1333 1334 static void 1335 fuid_table_destroy() 1336 { 1337 if (fuid_table_loaded) { 1338 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 1339 fuid_table_loaded = B_FALSE; 1340 } 1341 } 1342 1343 /* 1344 * print uid or gid information. 1345 * For normal POSIX id just the id is printed in decimal format. 1346 * For CIFS files with FUID the fuid is printed in hex followed by 1347 * the domain-rid string. 1348 */ 1349 static void 1350 print_idstr(uint64_t id, const char *id_type) 1351 { 1352 if (FUID_INDEX(id)) { 1353 char *domain; 1354 1355 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 1356 (void) printf("\t%s %llx [%s-%d]\n", id_type, 1357 (u_longlong_t)id, domain, (int)FUID_RID(id)); 1358 } else { 1359 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 1360 } 1361 1362 } 1363 1364 static void 1365 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 1366 { 1367 uint32_t uid_idx, gid_idx; 1368 1369 uid_idx = FUID_INDEX(uid); 1370 gid_idx = FUID_INDEX(gid); 1371 1372 /* Load domain table, if not already loaded */ 1373 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 1374 uint64_t fuid_obj; 1375 1376 /* first find the fuid object. It lives in the master node */ 1377 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 1378 8, 1, &fuid_obj) == 0); 1379 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 1380 (void) zfs_fuid_table_load(os, fuid_obj, 1381 &idx_tree, &domain_tree); 1382 fuid_table_loaded = B_TRUE; 1383 } 1384 1385 print_idstr(uid, "uid"); 1386 print_idstr(gid, "gid"); 1387 } 1388 1389 /*ARGSUSED*/ 1390 static void 1391 dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 1392 { 1393 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 1394 sa_handle_t *hdl; 1395 uint64_t xattr, rdev, gen; 1396 uint64_t uid, gid, mode, fsize, parent, links; 1397 uint64_t pflags; 1398 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 1399 time_t z_crtime, z_atime, z_mtime, z_ctime; 1400 sa_bulk_attr_t bulk[12]; 1401 int idx = 0; 1402 int error; 1403 1404 if (!sa_loaded) { 1405 uint64_t sa_attrs = 0; 1406 uint64_t version; 1407 1408 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR, 1409 8, 1, &version) == 0); 1410 if (version >= ZPL_VERSION_SA) { 1411 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 1412 8, 1, &sa_attrs) == 0); 1413 } 1414 if ((error = sa_setup(os, sa_attrs, zfs_attr_table, 1415 ZPL_END, &sa_attr_table)) != 0) { 1416 (void) printf("sa_setup failed errno %d, can't " 1417 "display znode contents\n", error); 1418 return; 1419 } 1420 sa_loaded = B_TRUE; 1421 } 1422 1423 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 1424 (void) printf("Failed to get handle for SA znode\n"); 1425 return; 1426 } 1427 1428 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 1429 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 1430 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 1431 &links, 8); 1432 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 1433 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 1434 &mode, 8); 1435 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 1436 NULL, &parent, 8); 1437 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 1438 &fsize, 8); 1439 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 1440 acctm, 16); 1441 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 1442 modtm, 16); 1443 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 1444 crtm, 16); 1445 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 1446 chgtm, 16); 1447 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 1448 &pflags, 8); 1449 1450 if (sa_bulk_lookup(hdl, bulk, idx)) { 1451 (void) sa_handle_destroy(hdl); 1452 return; 1453 } 1454 1455 error = zfs_obj_to_path(os, object, path, sizeof (path)); 1456 if (error != 0) { 1457 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>", 1458 (u_longlong_t)object); 1459 } 1460 if (dump_opt['d'] < 3) { 1461 (void) printf("\t%s\n", path); 1462 (void) sa_handle_destroy(hdl); 1463 return; 1464 } 1465 1466 z_crtime = (time_t)crtm[0]; 1467 z_atime = (time_t)acctm[0]; 1468 z_mtime = (time_t)modtm[0]; 1469 z_ctime = (time_t)chgtm[0]; 1470 1471 (void) printf("\tpath %s\n", path); 1472 dump_uidgid(os, uid, gid); 1473 (void) printf("\tatime %s", ctime(&z_atime)); 1474 (void) printf("\tmtime %s", ctime(&z_mtime)); 1475 (void) printf("\tctime %s", ctime(&z_ctime)); 1476 (void) printf("\tcrtime %s", ctime(&z_crtime)); 1477 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 1478 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 1479 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 1480 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 1481 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 1482 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 1483 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 1484 sizeof (uint64_t)) == 0) 1485 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 1486 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 1487 sizeof (uint64_t)) == 0) 1488 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 1489 sa_handle_destroy(hdl); 1490 } 1491 1492 /*ARGSUSED*/ 1493 static void 1494 dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 1495 { 1496 } 1497 1498 /*ARGSUSED*/ 1499 static void 1500 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 1501 { 1502 } 1503 1504 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 1505 dump_none, /* unallocated */ 1506 dump_zap, /* object directory */ 1507 dump_uint64, /* object array */ 1508 dump_none, /* packed nvlist */ 1509 dump_packed_nvlist, /* packed nvlist size */ 1510 dump_none, /* bplist */ 1511 dump_none, /* bplist header */ 1512 dump_none, /* SPA space map header */ 1513 dump_none, /* SPA space map */ 1514 dump_none, /* ZIL intent log */ 1515 dump_dnode, /* DMU dnode */ 1516 dump_dmu_objset, /* DMU objset */ 1517 dump_dsl_dir, /* DSL directory */ 1518 dump_zap, /* DSL directory child map */ 1519 dump_zap, /* DSL dataset snap map */ 1520 dump_zap, /* DSL props */ 1521 dump_dsl_dataset, /* DSL dataset */ 1522 dump_znode, /* ZFS znode */ 1523 dump_acl, /* ZFS V0 ACL */ 1524 dump_uint8, /* ZFS plain file */ 1525 dump_zpldir, /* ZFS directory */ 1526 dump_zap, /* ZFS master node */ 1527 dump_zap, /* ZFS delete queue */ 1528 dump_uint8, /* zvol object */ 1529 dump_zap, /* zvol prop */ 1530 dump_uint8, /* other uint8[] */ 1531 dump_uint64, /* other uint64[] */ 1532 dump_zap, /* other ZAP */ 1533 dump_zap, /* persistent error log */ 1534 dump_uint8, /* SPA history */ 1535 dump_history_offsets, /* SPA history offsets */ 1536 dump_zap, /* Pool properties */ 1537 dump_zap, /* DSL permissions */ 1538 dump_acl, /* ZFS ACL */ 1539 dump_uint8, /* ZFS SYSACL */ 1540 dump_none, /* FUID nvlist */ 1541 dump_packed_nvlist, /* FUID nvlist size */ 1542 dump_zap, /* DSL dataset next clones */ 1543 dump_zap, /* DSL scrub queue */ 1544 dump_zap, /* ZFS user/group used */ 1545 dump_zap, /* ZFS user/group quota */ 1546 dump_zap, /* snapshot refcount tags */ 1547 dump_ddt_zap, /* DDT ZAP object */ 1548 dump_zap, /* DDT statistics */ 1549 dump_znode, /* SA object */ 1550 dump_zap, /* SA Master Node */ 1551 dump_sa_attrs, /* SA attribute registration */ 1552 dump_sa_layouts, /* SA attribute layouts */ 1553 dump_zap, /* DSL scrub translations */ 1554 dump_none, /* fake dedup BP */ 1555 dump_zap, /* deadlist */ 1556 dump_none, /* deadlist hdr */ 1557 dump_zap, /* dsl clones */ 1558 dump_none, /* bpobj subobjs */ 1559 dump_unknown, /* Unknown type, must be last */ 1560 }; 1561 1562 static void 1563 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1564 { 1565 dmu_buf_t *db = NULL; 1566 dmu_object_info_t doi; 1567 dnode_t *dn; 1568 void *bonus = NULL; 1569 size_t bsize = 0; 1570 char iblk[32], dblk[32], lsize[32], asize[32], fill[32]; 1571 char bonus_size[32]; 1572 char aux[50]; 1573 int error; 1574 1575 if (*print_header) { 1576 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n", 1577 "Object", "lvl", "iblk", "dblk", "dsize", "lsize", 1578 "%full", "type"); 1579 *print_header = 0; 1580 } 1581 1582 if (object == 0) { 1583 dn = DMU_META_DNODE(os); 1584 } else { 1585 error = dmu_bonus_hold(os, object, FTAG, &db); 1586 if (error) 1587 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1588 object, error); 1589 bonus = db->db_data; 1590 bsize = db->db_size; 1591 dn = DB_DNODE((dmu_buf_impl_t *)db); 1592 } 1593 dmu_object_info_from_dnode(dn, &doi); 1594 1595 zdb_nicenum(doi.doi_metadata_block_size, iblk); 1596 zdb_nicenum(doi.doi_data_block_size, dblk); 1597 zdb_nicenum(doi.doi_max_offset, lsize); 1598 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize); 1599 zdb_nicenum(doi.doi_bonus_size, bonus_size); 1600 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 1601 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 1602 doi.doi_max_offset); 1603 1604 aux[0] = '\0'; 1605 1606 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1607 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1608 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 1609 } 1610 1611 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1612 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1613 ZDB_COMPRESS_NAME(doi.doi_compress)); 1614 } 1615 1616 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n", 1617 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 1618 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 1619 1620 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1621 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n", 1622 "", "", "", "", "", bonus_size, "bonus", 1623 ZDB_OT_NAME(doi.doi_bonus_type)); 1624 } 1625 1626 if (verbosity >= 4) { 1627 (void) printf("\tdnode flags: %s%s%s\n", 1628 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 1629 "USED_BYTES " : "", 1630 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 1631 "USERUSED_ACCOUNTED " : "", 1632 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 1633 "SPILL_BLKPTR" : ""); 1634 (void) printf("\tdnode maxblkid: %llu\n", 1635 (longlong_t)dn->dn_phys->dn_maxblkid); 1636 1637 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, 1638 bonus, bsize); 1639 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); 1640 *print_header = 1; 1641 } 1642 1643 if (verbosity >= 5) 1644 dump_indirect(dn); 1645 1646 if (verbosity >= 5) { 1647 /* 1648 * Report the list of segments that comprise the object. 1649 */ 1650 uint64_t start = 0; 1651 uint64_t end; 1652 uint64_t blkfill = 1; 1653 int minlvl = 1; 1654 1655 if (dn->dn_type == DMU_OT_DNODE) { 1656 minlvl = 0; 1657 blkfill = DNODES_PER_BLOCK; 1658 } 1659 1660 for (;;) { 1661 char segsize[32]; 1662 error = dnode_next_offset(dn, 1663 0, &start, minlvl, blkfill, 0); 1664 if (error) 1665 break; 1666 end = start; 1667 error = dnode_next_offset(dn, 1668 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 1669 zdb_nicenum(end - start, segsize); 1670 (void) printf("\t\tsegment [%016llx, %016llx)" 1671 " size %5s\n", (u_longlong_t)start, 1672 (u_longlong_t)end, segsize); 1673 if (error) 1674 break; 1675 start = end; 1676 } 1677 } 1678 1679 if (db != NULL) 1680 dmu_buf_rele(db, FTAG); 1681 } 1682 1683 static char *objset_types[DMU_OST_NUMTYPES] = { 1684 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1685 1686 static void 1687 dump_dir(objset_t *os) 1688 { 1689 dmu_objset_stats_t dds; 1690 uint64_t object, object_count; 1691 uint64_t refdbytes, usedobjs, scratch; 1692 char numbuf[32]; 1693 char blkbuf[BP_SPRINTF_LEN + 20]; 1694 char osname[MAXNAMELEN]; 1695 char *type = "UNKNOWN"; 1696 int verbosity = dump_opt['d']; 1697 int print_header = 1; 1698 int i, error; 1699 1700 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 1701 dmu_objset_fast_stat(os, &dds); 1702 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 1703 1704 if (dds.dds_type < DMU_OST_NUMTYPES) 1705 type = objset_types[dds.dds_type]; 1706 1707 if (dds.dds_type == DMU_OST_META) { 1708 dds.dds_creation_txg = TXG_INITIAL; 1709 usedobjs = os->os_rootbp->blk_fill; 1710 refdbytes = os->os_spa->spa_dsl_pool-> 1711 dp_mos_dir->dd_phys->dd_used_bytes; 1712 } else { 1713 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 1714 } 1715 1716 ASSERT3U(usedobjs, ==, os->os_rootbp->blk_fill); 1717 1718 zdb_nicenum(refdbytes, numbuf); 1719 1720 if (verbosity >= 4) { 1721 (void) sprintf(blkbuf, ", rootbp "); 1722 (void) sprintf_blkptr(blkbuf + strlen(blkbuf), os->os_rootbp); 1723 } else { 1724 blkbuf[0] = '\0'; 1725 } 1726 1727 dmu_objset_name(os, osname); 1728 1729 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 1730 "%s, %llu objects%s\n", 1731 osname, type, (u_longlong_t)dmu_objset_id(os), 1732 (u_longlong_t)dds.dds_creation_txg, 1733 numbuf, (u_longlong_t)usedobjs, blkbuf); 1734 1735 if (zopt_objects != 0) { 1736 for (i = 0; i < zopt_objects; i++) 1737 dump_object(os, zopt_object[i], verbosity, 1738 &print_header); 1739 (void) printf("\n"); 1740 return; 1741 } 1742 1743 if (dump_opt['i'] != 0 || verbosity >= 2) 1744 dump_intent_log(dmu_objset_zil(os)); 1745 1746 if (dmu_objset_ds(os) != NULL) 1747 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist); 1748 1749 if (verbosity < 2) 1750 return; 1751 1752 if (os->os_rootbp->blk_birth == 0) 1753 return; 1754 1755 dump_object(os, 0, verbosity, &print_header); 1756 object_count = 0; 1757 if (DMU_USERUSED_DNODE(os) != NULL && 1758 DMU_USERUSED_DNODE(os)->dn_type != 0) { 1759 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 1760 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 1761 } 1762 1763 object = 0; 1764 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 1765 dump_object(os, object, verbosity, &print_header); 1766 object_count++; 1767 } 1768 1769 ASSERT3U(object_count, ==, usedobjs); 1770 1771 (void) printf("\n"); 1772 1773 if (error != ESRCH) { 1774 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 1775 abort(); 1776 } 1777 } 1778 1779 static void 1780 dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 1781 { 1782 time_t timestamp = ub->ub_timestamp; 1783 1784 (void) printf(header ? header : ""); 1785 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 1786 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 1787 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 1788 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 1789 (void) printf("\ttimestamp = %llu UTC = %s", 1790 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 1791 if (dump_opt['u'] >= 3) { 1792 char blkbuf[BP_SPRINTF_LEN]; 1793 sprintf_blkptr(blkbuf, &ub->ub_rootbp); 1794 (void) printf("\trootbp = %s\n", blkbuf); 1795 } 1796 (void) printf(footer ? footer : ""); 1797 } 1798 1799 static void 1800 dump_config(spa_t *spa) 1801 { 1802 dmu_buf_t *db; 1803 size_t nvsize = 0; 1804 int error = 0; 1805 1806 1807 error = dmu_bonus_hold(spa->spa_meta_objset, 1808 spa->spa_config_object, FTAG, &db); 1809 1810 if (error == 0) { 1811 nvsize = *(uint64_t *)db->db_data; 1812 dmu_buf_rele(db, FTAG); 1813 1814 (void) printf("\nMOS Configuration:\n"); 1815 dump_packed_nvlist(spa->spa_meta_objset, 1816 spa->spa_config_object, (void *)&nvsize, 1); 1817 } else { 1818 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 1819 (u_longlong_t)spa->spa_config_object, error); 1820 } 1821 } 1822 1823 static void 1824 dump_cachefile(const char *cachefile) 1825 { 1826 int fd; 1827 struct stat64 statbuf; 1828 char *buf; 1829 nvlist_t *config; 1830 1831 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 1832 (void) printf("cannot open '%s': %s\n", cachefile, 1833 strerror(errno)); 1834 exit(1); 1835 } 1836 1837 if (fstat64(fd, &statbuf) != 0) { 1838 (void) printf("failed to stat '%s': %s\n", cachefile, 1839 strerror(errno)); 1840 exit(1); 1841 } 1842 1843 if ((buf = malloc(statbuf.st_size)) == NULL) { 1844 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 1845 (u_longlong_t)statbuf.st_size); 1846 exit(1); 1847 } 1848 1849 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 1850 (void) fprintf(stderr, "failed to read %llu bytes\n", 1851 (u_longlong_t)statbuf.st_size); 1852 exit(1); 1853 } 1854 1855 (void) close(fd); 1856 1857 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 1858 (void) fprintf(stderr, "failed to unpack nvlist\n"); 1859 exit(1); 1860 } 1861 1862 free(buf); 1863 1864 dump_nvlist(config, 0); 1865 1866 nvlist_free(config); 1867 } 1868 1869 #define ZDB_MAX_UB_HEADER_SIZE 32 1870 1871 static void 1872 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) 1873 { 1874 vdev_t vd; 1875 vdev_t *vdp = &vd; 1876 char header[ZDB_MAX_UB_HEADER_SIZE]; 1877 1878 vd.vdev_ashift = ashift; 1879 vdp->vdev_top = vdp; 1880 1881 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { 1882 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); 1883 uberblock_t *ub = (void *)((char *)lbl + uoff); 1884 1885 if (uberblock_verify(ub)) 1886 continue; 1887 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 1888 "Uberblock[%d]\n", i); 1889 dump_uberblock(ub, header, ""); 1890 } 1891 } 1892 1893 static void 1894 dump_label(const char *dev) 1895 { 1896 int fd; 1897 vdev_label_t label; 1898 char *path, *buf = label.vl_vdev_phys.vp_nvlist; 1899 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 1900 struct stat64 statbuf; 1901 uint64_t psize, ashift; 1902 int len = strlen(dev) + 1; 1903 1904 if (strncmp(dev, "/dev/dsk/", 9) == 0) { 1905 len++; 1906 path = malloc(len); 1907 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9); 1908 } else { 1909 path = strdup(dev); 1910 } 1911 1912 if ((fd = open64(path, O_RDONLY)) < 0) { 1913 (void) printf("cannot open '%s': %s\n", path, strerror(errno)); 1914 free(path); 1915 exit(1); 1916 } 1917 1918 if (fstat64(fd, &statbuf) != 0) { 1919 (void) printf("failed to stat '%s': %s\n", path, 1920 strerror(errno)); 1921 free(path); 1922 (void) close(fd); 1923 exit(1); 1924 } 1925 1926 if (S_ISBLK(statbuf.st_mode)) { 1927 (void) printf("cannot use '%s': character device required\n", 1928 path); 1929 free(path); 1930 (void) close(fd); 1931 exit(1); 1932 } 1933 1934 psize = statbuf.st_size; 1935 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 1936 1937 for (int l = 0; l < VDEV_LABELS; l++) { 1938 nvlist_t *config = NULL; 1939 1940 (void) printf("--------------------------------------------\n"); 1941 (void) printf("LABEL %d\n", l); 1942 (void) printf("--------------------------------------------\n"); 1943 1944 if (pread64(fd, &label, sizeof (label), 1945 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 1946 (void) printf("failed to read label %d\n", l); 1947 continue; 1948 } 1949 1950 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 1951 (void) printf("failed to unpack label %d\n", l); 1952 ashift = SPA_MINBLOCKSHIFT; 1953 } else { 1954 nvlist_t *vdev_tree = NULL; 1955 1956 dump_nvlist(config, 4); 1957 if ((nvlist_lookup_nvlist(config, 1958 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 1959 (nvlist_lookup_uint64(vdev_tree, 1960 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 1961 ashift = SPA_MINBLOCKSHIFT; 1962 nvlist_free(config); 1963 } 1964 if (dump_opt['u']) 1965 dump_label_uberblocks(&label, ashift); 1966 } 1967 1968 free(path); 1969 (void) close(fd); 1970 } 1971 1972 /*ARGSUSED*/ 1973 static int 1974 dump_one_dir(const char *dsname, void *arg) 1975 { 1976 int error; 1977 objset_t *os; 1978 1979 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os); 1980 if (error) { 1981 (void) printf("Could not open %s, error %d\n", dsname, error); 1982 return (0); 1983 } 1984 dump_dir(os); 1985 dmu_objset_disown(os, FTAG); 1986 fuid_table_destroy(); 1987 sa_loaded = B_FALSE; 1988 return (0); 1989 } 1990 1991 /* 1992 * Block statistics. 1993 */ 1994 #define PSIZE_HISTO_SIZE (SPA_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1) 1995 typedef struct zdb_blkstats { 1996 uint64_t zb_asize; 1997 uint64_t zb_lsize; 1998 uint64_t zb_psize; 1999 uint64_t zb_count; 2000 uint64_t zb_gangs; 2001 uint64_t zb_ditto_samevdev; 2002 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 2003 } zdb_blkstats_t; 2004 2005 /* 2006 * Extended object types to report deferred frees and dedup auto-ditto blocks. 2007 */ 2008 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 2009 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 2010 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 2011 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 2012 2013 static char *zdb_ot_extname[] = { 2014 "deferred free", 2015 "dedup ditto", 2016 "other", 2017 "Total", 2018 }; 2019 2020 #define ZB_TOTAL DN_MAX_LEVELS 2021 2022 typedef struct zdb_cb { 2023 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 2024 uint64_t zcb_dedup_asize; 2025 uint64_t zcb_dedup_blocks; 2026 uint64_t zcb_start; 2027 uint64_t zcb_lastprint; 2028 uint64_t zcb_totalasize; 2029 uint64_t zcb_errors[256]; 2030 int zcb_readfails; 2031 int zcb_haderrors; 2032 spa_t *zcb_spa; 2033 } zdb_cb_t; 2034 2035 static void 2036 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 2037 dmu_object_type_t type) 2038 { 2039 uint64_t refcnt = 0; 2040 2041 ASSERT(type < ZDB_OT_TOTAL); 2042 2043 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 2044 return; 2045 2046 for (int i = 0; i < 4; i++) { 2047 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 2048 int t = (i & 1) ? type : ZDB_OT_TOTAL; 2049 int equal; 2050 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 2051 2052 zb->zb_asize += BP_GET_ASIZE(bp); 2053 zb->zb_lsize += BP_GET_LSIZE(bp); 2054 zb->zb_psize += BP_GET_PSIZE(bp); 2055 zb->zb_count++; 2056 zb->zb_psize_histogram[BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT]++; 2057 2058 zb->zb_gangs += BP_COUNT_GANG(bp); 2059 2060 switch (BP_GET_NDVAS(bp)) { 2061 case 2: 2062 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 2063 DVA_GET_VDEV(&bp->blk_dva[1])) 2064 zb->zb_ditto_samevdev++; 2065 break; 2066 case 3: 2067 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == 2068 DVA_GET_VDEV(&bp->blk_dva[1])) + 2069 (DVA_GET_VDEV(&bp->blk_dva[0]) == 2070 DVA_GET_VDEV(&bp->blk_dva[2])) + 2071 (DVA_GET_VDEV(&bp->blk_dva[1]) == 2072 DVA_GET_VDEV(&bp->blk_dva[2])); 2073 if (equal != 0) 2074 zb->zb_ditto_samevdev++; 2075 break; 2076 } 2077 2078 } 2079 2080 if (dump_opt['L']) 2081 return; 2082 2083 if (BP_GET_DEDUP(bp)) { 2084 ddt_t *ddt; 2085 ddt_entry_t *dde; 2086 2087 ddt = ddt_select(zcb->zcb_spa, bp); 2088 ddt_enter(ddt); 2089 dde = ddt_lookup(ddt, bp, B_FALSE); 2090 2091 if (dde == NULL) { 2092 refcnt = 0; 2093 } else { 2094 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 2095 ddt_phys_decref(ddp); 2096 refcnt = ddp->ddp_refcnt; 2097 if (ddt_phys_total_refcnt(dde) == 0) 2098 ddt_remove(ddt, dde); 2099 } 2100 ddt_exit(ddt); 2101 } 2102 2103 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 2104 refcnt ? 0 : spa_first_txg(zcb->zcb_spa), 2105 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 2106 } 2107 2108 static void 2109 zdb_blkptr_done(zio_t *zio) 2110 { 2111 spa_t *spa = zio->io_spa; 2112 blkptr_t *bp = zio->io_bp; 2113 int ioerr = zio->io_error; 2114 zdb_cb_t *zcb = zio->io_private; 2115 zbookmark_t *zb = &zio->io_bookmark; 2116 2117 zio_data_buf_free(zio->io_data, zio->io_size); 2118 2119 mutex_enter(&spa->spa_scrub_lock); 2120 spa->spa_scrub_inflight--; 2121 cv_broadcast(&spa->spa_scrub_io_cv); 2122 2123 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 2124 char blkbuf[BP_SPRINTF_LEN]; 2125 2126 zcb->zcb_haderrors = 1; 2127 zcb->zcb_errors[ioerr]++; 2128 2129 if (dump_opt['b'] >= 2) 2130 sprintf_blkptr(blkbuf, bp); 2131 else 2132 blkbuf[0] = '\0'; 2133 2134 (void) printf("zdb_blkptr_cb: " 2135 "Got error %d reading " 2136 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 2137 ioerr, 2138 (u_longlong_t)zb->zb_objset, 2139 (u_longlong_t)zb->zb_object, 2140 (u_longlong_t)zb->zb_level, 2141 (u_longlong_t)zb->zb_blkid, 2142 blkbuf); 2143 } 2144 mutex_exit(&spa->spa_scrub_lock); 2145 } 2146 2147 static int 2148 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2149 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) 2150 { 2151 zdb_cb_t *zcb = arg; 2152 char blkbuf[BP_SPRINTF_LEN]; 2153 dmu_object_type_t type; 2154 boolean_t is_metadata; 2155 2156 if (bp == NULL) 2157 return (0); 2158 2159 type = BP_GET_TYPE(bp); 2160 2161 zdb_count_block(zcb, zilog, bp, 2162 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 2163 2164 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 2165 2166 if (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata)) { 2167 size_t size = BP_GET_PSIZE(bp); 2168 void *data = zio_data_buf_alloc(size); 2169 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 2170 2171 /* If it's an intent log block, failure is expected. */ 2172 if (zb->zb_level == ZB_ZIL_LEVEL) 2173 flags |= ZIO_FLAG_SPECULATIVE; 2174 2175 mutex_enter(&spa->spa_scrub_lock); 2176 while (spa->spa_scrub_inflight > max_inflight) 2177 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 2178 spa->spa_scrub_inflight++; 2179 mutex_exit(&spa->spa_scrub_lock); 2180 2181 zio_nowait(zio_read(NULL, spa, bp, data, size, 2182 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 2183 } 2184 2185 zcb->zcb_readfails = 0; 2186 2187 if (dump_opt['b'] >= 5) { 2188 sprintf_blkptr(blkbuf, bp); 2189 (void) printf("objset %llu object %llu " 2190 "level %lld offset 0x%llx %s\n", 2191 (u_longlong_t)zb->zb_objset, 2192 (u_longlong_t)zb->zb_object, 2193 (longlong_t)zb->zb_level, 2194 (u_longlong_t)blkid2offset(dnp, bp, zb), 2195 blkbuf); 2196 } 2197 2198 if (dump_opt['b'] < 5 && isatty(STDERR_FILENO) && 2199 gethrtime() > zcb->zcb_lastprint + NANOSEC) { 2200 uint64_t now = gethrtime(); 2201 char buf[10]; 2202 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 2203 int kb_per_sec = 2204 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 2205 int sec_remaining = 2206 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 2207 2208 zfs_nicenum(bytes, buf, sizeof (buf)); 2209 (void) fprintf(stderr, 2210 "\r%5s completed (%4dMB/s) " 2211 "estimated time remaining: %uhr %02umin %02usec ", 2212 buf, kb_per_sec / 1024, 2213 sec_remaining / 60 / 60, 2214 sec_remaining / 60 % 60, 2215 sec_remaining % 60); 2216 2217 zcb->zcb_lastprint = now; 2218 } 2219 2220 return (0); 2221 } 2222 2223 static void 2224 zdb_leak(space_map_t *sm, uint64_t start, uint64_t size) 2225 { 2226 vdev_t *vd = sm->sm_ppd; 2227 2228 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 2229 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 2230 } 2231 2232 /* ARGSUSED */ 2233 static void 2234 zdb_space_map_load(space_map_t *sm) 2235 { 2236 } 2237 2238 static void 2239 zdb_space_map_unload(space_map_t *sm) 2240 { 2241 space_map_vacate(sm, zdb_leak, sm); 2242 } 2243 2244 /* ARGSUSED */ 2245 static void 2246 zdb_space_map_claim(space_map_t *sm, uint64_t start, uint64_t size) 2247 { 2248 } 2249 2250 static space_map_ops_t zdb_space_map_ops = { 2251 zdb_space_map_load, 2252 zdb_space_map_unload, 2253 NULL, /* alloc */ 2254 zdb_space_map_claim, 2255 NULL, /* free */ 2256 NULL /* maxsize */ 2257 }; 2258 2259 static void 2260 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 2261 { 2262 ddt_bookmark_t ddb = { 0 }; 2263 ddt_entry_t dde; 2264 int error; 2265 2266 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 2267 blkptr_t blk; 2268 ddt_phys_t *ddp = dde.dde_phys; 2269 2270 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 2271 return; 2272 2273 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 2274 2275 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 2276 if (ddp->ddp_phys_birth == 0) 2277 continue; 2278 ddt_bp_create(ddb.ddb_checksum, 2279 &dde.dde_key, ddp, &blk); 2280 if (p == DDT_PHYS_DITTO) { 2281 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 2282 } else { 2283 zcb->zcb_dedup_asize += 2284 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 2285 zcb->zcb_dedup_blocks++; 2286 } 2287 } 2288 if (!dump_opt['L']) { 2289 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 2290 ddt_enter(ddt); 2291 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 2292 ddt_exit(ddt); 2293 } 2294 } 2295 2296 ASSERT(error == ENOENT); 2297 } 2298 2299 static void 2300 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 2301 { 2302 zcb->zcb_spa = spa; 2303 2304 if (!dump_opt['L']) { 2305 vdev_t *rvd = spa->spa_root_vdev; 2306 for (int c = 0; c < rvd->vdev_children; c++) { 2307 vdev_t *vd = rvd->vdev_child[c]; 2308 for (int m = 0; m < vd->vdev_ms_count; m++) { 2309 metaslab_t *msp = vd->vdev_ms[m]; 2310 mutex_enter(&msp->ms_lock); 2311 space_map_unload(msp->ms_map); 2312 VERIFY(space_map_load(msp->ms_map, 2313 &zdb_space_map_ops, SM_ALLOC, &msp->ms_smo, 2314 spa->spa_meta_objset) == 0); 2315 msp->ms_map->sm_ppd = vd; 2316 mutex_exit(&msp->ms_lock); 2317 } 2318 } 2319 } 2320 2321 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2322 2323 zdb_ddt_leak_init(spa, zcb); 2324 2325 spa_config_exit(spa, SCL_CONFIG, FTAG); 2326 } 2327 2328 static void 2329 zdb_leak_fini(spa_t *spa) 2330 { 2331 if (!dump_opt['L']) { 2332 vdev_t *rvd = spa->spa_root_vdev; 2333 for (int c = 0; c < rvd->vdev_children; c++) { 2334 vdev_t *vd = rvd->vdev_child[c]; 2335 for (int m = 0; m < vd->vdev_ms_count; m++) { 2336 metaslab_t *msp = vd->vdev_ms[m]; 2337 mutex_enter(&msp->ms_lock); 2338 space_map_unload(msp->ms_map); 2339 mutex_exit(&msp->ms_lock); 2340 } 2341 } 2342 } 2343 } 2344 2345 /* ARGSUSED */ 2346 static int 2347 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 2348 { 2349 zdb_cb_t *zcb = arg; 2350 2351 if (dump_opt['b'] >= 5) { 2352 char blkbuf[BP_SPRINTF_LEN]; 2353 sprintf_blkptr(blkbuf, bp); 2354 (void) printf("[%s] %s\n", 2355 "deferred free", blkbuf); 2356 } 2357 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 2358 return (0); 2359 } 2360 2361 static int 2362 dump_block_stats(spa_t *spa) 2363 { 2364 zdb_cb_t zcb = { 0 }; 2365 zdb_blkstats_t *zb, *tzb; 2366 uint64_t norm_alloc, norm_space, total_alloc, total_found; 2367 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; 2368 int leaks = 0; 2369 2370 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 2371 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 2372 (dump_opt['c'] == 1) ? "metadata " : "", 2373 dump_opt['c'] ? "checksums " : "", 2374 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 2375 !dump_opt['L'] ? "nothing leaked " : ""); 2376 2377 /* 2378 * Load all space maps as SM_ALLOC maps, then traverse the pool 2379 * claiming each block we discover. If the pool is perfectly 2380 * consistent, the space maps will be empty when we're done. 2381 * Anything left over is a leak; any block we can't claim (because 2382 * it's not part of any space map) is a double allocation, 2383 * reference to a freed block, or an unclaimed log block. 2384 */ 2385 zdb_leak_init(spa, &zcb); 2386 2387 /* 2388 * If there's a deferred-free bplist, process that first. 2389 */ 2390 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 2391 count_block_cb, &zcb, NULL); 2392 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2393 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 2394 count_block_cb, &zcb, NULL); 2395 } 2396 if (spa_feature_is_active(spa, 2397 &spa_feature_table[SPA_FEATURE_ASYNC_DESTROY])) { 2398 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 2399 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 2400 &zcb, NULL)); 2401 } 2402 2403 if (dump_opt['c'] > 1) 2404 flags |= TRAVERSE_PREFETCH_DATA; 2405 2406 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 2407 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 2408 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 2409 2410 /* 2411 * If we've traversed the data blocks then we need to wait for those 2412 * I/Os to complete. We leverage "The Godfather" zio to wait on 2413 * all async I/Os to complete. 2414 */ 2415 if (dump_opt['c']) { 2416 (void) zio_wait(spa->spa_async_zio_root); 2417 spa->spa_async_zio_root = zio_root(spa, NULL, NULL, 2418 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 2419 ZIO_FLAG_GODFATHER); 2420 } 2421 2422 if (zcb.zcb_haderrors) { 2423 (void) printf("\nError counts:\n\n"); 2424 (void) printf("\t%5s %s\n", "errno", "count"); 2425 for (int e = 0; e < 256; e++) { 2426 if (zcb.zcb_errors[e] != 0) { 2427 (void) printf("\t%5d %llu\n", 2428 e, (u_longlong_t)zcb.zcb_errors[e]); 2429 } 2430 } 2431 } 2432 2433 /* 2434 * Report any leaked segments. 2435 */ 2436 zdb_leak_fini(spa); 2437 2438 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 2439 2440 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 2441 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 2442 2443 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); 2444 total_found = tzb->zb_asize - zcb.zcb_dedup_asize; 2445 2446 if (total_found == total_alloc) { 2447 if (!dump_opt['L']) 2448 (void) printf("\n\tNo leaks (block sum matches space" 2449 " maps exactly)\n"); 2450 } else { 2451 (void) printf("block traversal size %llu != alloc %llu " 2452 "(%s %lld)\n", 2453 (u_longlong_t)total_found, 2454 (u_longlong_t)total_alloc, 2455 (dump_opt['L']) ? "unreachable" : "leaked", 2456 (longlong_t)(total_alloc - total_found)); 2457 leaks = 1; 2458 } 2459 2460 if (tzb->zb_count == 0) 2461 return (2); 2462 2463 (void) printf("\n"); 2464 (void) printf("\tbp count: %10llu\n", 2465 (u_longlong_t)tzb->zb_count); 2466 (void) printf("\tganged count: %10llu\n", 2467 (longlong_t)tzb->zb_gangs); 2468 (void) printf("\tbp logical: %10llu avg: %6llu\n", 2469 (u_longlong_t)tzb->zb_lsize, 2470 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 2471 (void) printf("\tbp physical: %10llu avg:" 2472 " %6llu compression: %6.2f\n", 2473 (u_longlong_t)tzb->zb_psize, 2474 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 2475 (double)tzb->zb_lsize / tzb->zb_psize); 2476 (void) printf("\tbp allocated: %10llu avg:" 2477 " %6llu compression: %6.2f\n", 2478 (u_longlong_t)tzb->zb_asize, 2479 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 2480 (double)tzb->zb_lsize / tzb->zb_asize); 2481 (void) printf("\tbp deduped: %10llu ref>1:" 2482 " %6llu deduplication: %6.2f\n", 2483 (u_longlong_t)zcb.zcb_dedup_asize, 2484 (u_longlong_t)zcb.zcb_dedup_blocks, 2485 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 2486 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", 2487 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 2488 2489 if (tzb->zb_ditto_samevdev != 0) { 2490 (void) printf("\tDittoed blocks on same vdev: %llu\n", 2491 (longlong_t)tzb->zb_ditto_samevdev); 2492 } 2493 2494 if (dump_opt['b'] >= 2) { 2495 int l, t, level; 2496 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 2497 "\t avg\t comp\t%%Total\tType\n"); 2498 2499 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 2500 char csize[32], lsize[32], psize[32], asize[32]; 2501 char avg[32], gang[32]; 2502 char *typename; 2503 2504 if (t < DMU_OT_NUMTYPES) 2505 typename = dmu_ot[t].ot_name; 2506 else 2507 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 2508 2509 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 2510 (void) printf("%6s\t%5s\t%5s\t%5s" 2511 "\t%5s\t%5s\t%6s\t%s\n", 2512 "-", 2513 "-", 2514 "-", 2515 "-", 2516 "-", 2517 "-", 2518 "-", 2519 typename); 2520 continue; 2521 } 2522 2523 for (l = ZB_TOTAL - 1; l >= -1; l--) { 2524 level = (l == -1 ? ZB_TOTAL : l); 2525 zb = &zcb.zcb_type[level][t]; 2526 2527 if (zb->zb_asize == 0) 2528 continue; 2529 2530 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 2531 continue; 2532 2533 if (level == 0 && zb->zb_asize == 2534 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 2535 continue; 2536 2537 zdb_nicenum(zb->zb_count, csize); 2538 zdb_nicenum(zb->zb_lsize, lsize); 2539 zdb_nicenum(zb->zb_psize, psize); 2540 zdb_nicenum(zb->zb_asize, asize); 2541 zdb_nicenum(zb->zb_asize / zb->zb_count, avg); 2542 zdb_nicenum(zb->zb_gangs, gang); 2543 2544 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 2545 "\t%5.2f\t%6.2f\t", 2546 csize, lsize, psize, asize, avg, 2547 (double)zb->zb_lsize / zb->zb_psize, 2548 100.0 * zb->zb_asize / tzb->zb_asize); 2549 2550 if (level == ZB_TOTAL) 2551 (void) printf("%s\n", typename); 2552 else 2553 (void) printf(" L%d %s\n", 2554 level, typename); 2555 2556 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { 2557 (void) printf("\t number of ganged " 2558 "blocks: %s\n", gang); 2559 } 2560 2561 if (dump_opt['b'] >= 4) { 2562 (void) printf("psize " 2563 "(in 512-byte sectors): " 2564 "number of blocks\n"); 2565 dump_histogram(zb->zb_psize_histogram, 2566 PSIZE_HISTO_SIZE); 2567 } 2568 } 2569 } 2570 } 2571 2572 (void) printf("\n"); 2573 2574 if (leaks) 2575 return (2); 2576 2577 if (zcb.zcb_haderrors) 2578 return (3); 2579 2580 return (0); 2581 } 2582 2583 typedef struct zdb_ddt_entry { 2584 ddt_key_t zdde_key; 2585 uint64_t zdde_ref_blocks; 2586 uint64_t zdde_ref_lsize; 2587 uint64_t zdde_ref_psize; 2588 uint64_t zdde_ref_dsize; 2589 avl_node_t zdde_node; 2590 } zdb_ddt_entry_t; 2591 2592 /* ARGSUSED */ 2593 static int 2594 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2595 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) 2596 { 2597 avl_tree_t *t = arg; 2598 avl_index_t where; 2599 zdb_ddt_entry_t *zdde, zdde_search; 2600 2601 if (bp == NULL) 2602 return (0); 2603 2604 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 2605 (void) printf("traversing objset %llu, %llu objects, " 2606 "%lu blocks so far\n", 2607 (u_longlong_t)zb->zb_objset, 2608 (u_longlong_t)bp->blk_fill, 2609 avl_numnodes(t)); 2610 } 2611 2612 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 2613 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 2614 return (0); 2615 2616 ddt_key_fill(&zdde_search.zdde_key, bp); 2617 2618 zdde = avl_find(t, &zdde_search, &where); 2619 2620 if (zdde == NULL) { 2621 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 2622 zdde->zdde_key = zdde_search.zdde_key; 2623 avl_insert(t, zdde, where); 2624 } 2625 2626 zdde->zdde_ref_blocks += 1; 2627 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 2628 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 2629 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 2630 2631 return (0); 2632 } 2633 2634 static void 2635 dump_simulated_ddt(spa_t *spa) 2636 { 2637 avl_tree_t t; 2638 void *cookie = NULL; 2639 zdb_ddt_entry_t *zdde; 2640 ddt_histogram_t ddh_total = { 0 }; 2641 ddt_stat_t dds_total = { 0 }; 2642 2643 avl_create(&t, ddt_entry_compare, 2644 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 2645 2646 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2647 2648 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, 2649 zdb_ddt_add_cb, &t); 2650 2651 spa_config_exit(spa, SCL_CONFIG, FTAG); 2652 2653 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 2654 ddt_stat_t dds; 2655 uint64_t refcnt = zdde->zdde_ref_blocks; 2656 ASSERT(refcnt != 0); 2657 2658 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 2659 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 2660 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 2661 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 2662 2663 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 2664 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 2665 dds.dds_ref_psize = zdde->zdde_ref_psize; 2666 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 2667 2668 ddt_stat_add(&ddh_total.ddh_stat[highbit(refcnt) - 1], &dds, 0); 2669 2670 umem_free(zdde, sizeof (*zdde)); 2671 } 2672 2673 avl_destroy(&t); 2674 2675 ddt_histogram_stat(&dds_total, &ddh_total); 2676 2677 (void) printf("Simulated DDT histogram:\n"); 2678 2679 zpool_dump_ddt(&dds_total, &ddh_total); 2680 2681 dump_dedup_ratio(&dds_total); 2682 } 2683 2684 static void 2685 dump_zpool(spa_t *spa) 2686 { 2687 dsl_pool_t *dp = spa_get_dsl(spa); 2688 int rc = 0; 2689 2690 if (dump_opt['S']) { 2691 dump_simulated_ddt(spa); 2692 return; 2693 } 2694 2695 if (!dump_opt['e'] && dump_opt['C'] > 1) { 2696 (void) printf("\nCached configuration:\n"); 2697 dump_nvlist(spa->spa_config, 8); 2698 } 2699 2700 if (dump_opt['C']) 2701 dump_config(spa); 2702 2703 if (dump_opt['u']) 2704 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 2705 2706 if (dump_opt['D']) 2707 dump_all_ddts(spa); 2708 2709 if (dump_opt['d'] > 2 || dump_opt['m']) 2710 dump_metaslabs(spa); 2711 2712 if (dump_opt['d'] || dump_opt['i']) { 2713 dump_dir(dp->dp_meta_objset); 2714 if (dump_opt['d'] >= 3) { 2715 dump_bpobj(&spa->spa_deferred_bpobj, 2716 "Deferred frees", 0); 2717 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2718 dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj, 2719 "Pool snapshot frees", 0); 2720 } 2721 2722 if (spa_feature_is_active(spa, 2723 &spa_feature_table[SPA_FEATURE_ASYNC_DESTROY])) { 2724 dump_bptree(spa->spa_meta_objset, 2725 spa->spa_dsl_pool->dp_bptree_obj, 2726 "Pool dataset frees"); 2727 } 2728 dump_dtl(spa->spa_root_vdev, 0); 2729 } 2730 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 2731 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 2732 } 2733 if (dump_opt['b'] || dump_opt['c']) 2734 rc = dump_block_stats(spa); 2735 2736 if (dump_opt['s']) 2737 show_pool_stats(spa); 2738 2739 if (dump_opt['h']) 2740 dump_history(spa); 2741 2742 if (rc != 0) 2743 exit(rc); 2744 } 2745 2746 #define ZDB_FLAG_CHECKSUM 0x0001 2747 #define ZDB_FLAG_DECOMPRESS 0x0002 2748 #define ZDB_FLAG_BSWAP 0x0004 2749 #define ZDB_FLAG_GBH 0x0008 2750 #define ZDB_FLAG_INDIRECT 0x0010 2751 #define ZDB_FLAG_PHYS 0x0020 2752 #define ZDB_FLAG_RAW 0x0040 2753 #define ZDB_FLAG_PRINT_BLKPTR 0x0080 2754 2755 int flagbits[256]; 2756 2757 static void 2758 zdb_print_blkptr(blkptr_t *bp, int flags) 2759 { 2760 char blkbuf[BP_SPRINTF_LEN]; 2761 2762 if (flags & ZDB_FLAG_BSWAP) 2763 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 2764 2765 sprintf_blkptr(blkbuf, bp); 2766 (void) printf("%s\n", blkbuf); 2767 } 2768 2769 static void 2770 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 2771 { 2772 int i; 2773 2774 for (i = 0; i < nbps; i++) 2775 zdb_print_blkptr(&bp[i], flags); 2776 } 2777 2778 static void 2779 zdb_dump_gbh(void *buf, int flags) 2780 { 2781 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 2782 } 2783 2784 static void 2785 zdb_dump_block_raw(void *buf, uint64_t size, int flags) 2786 { 2787 if (flags & ZDB_FLAG_BSWAP) 2788 byteswap_uint64_array(buf, size); 2789 (void) write(1, buf, size); 2790 } 2791 2792 static void 2793 zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 2794 { 2795 uint64_t *d = (uint64_t *)buf; 2796 int nwords = size / sizeof (uint64_t); 2797 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 2798 int i, j; 2799 char *hdr, *c; 2800 2801 2802 if (do_bswap) 2803 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 2804 else 2805 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 2806 2807 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 2808 2809 for (i = 0; i < nwords; i += 2) { 2810 (void) printf("%06llx: %016llx %016llx ", 2811 (u_longlong_t)(i * sizeof (uint64_t)), 2812 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 2813 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 2814 2815 c = (char *)&d[i]; 2816 for (j = 0; j < 2 * sizeof (uint64_t); j++) 2817 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 2818 (void) printf("\n"); 2819 } 2820 } 2821 2822 /* 2823 * There are two acceptable formats: 2824 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 2825 * child[.child]* - For example: 0.1.1 2826 * 2827 * The second form can be used to specify arbitrary vdevs anywhere 2828 * in the heirarchy. For example, in a pool with a mirror of 2829 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 2830 */ 2831 static vdev_t * 2832 zdb_vdev_lookup(vdev_t *vdev, char *path) 2833 { 2834 char *s, *p, *q; 2835 int i; 2836 2837 if (vdev == NULL) 2838 return (NULL); 2839 2840 /* First, assume the x.x.x.x format */ 2841 i = (int)strtoul(path, &s, 10); 2842 if (s == path || (s && *s != '.' && *s != '\0')) 2843 goto name; 2844 if (i < 0 || i >= vdev->vdev_children) 2845 return (NULL); 2846 2847 vdev = vdev->vdev_child[i]; 2848 if (*s == '\0') 2849 return (vdev); 2850 return (zdb_vdev_lookup(vdev, s+1)); 2851 2852 name: 2853 for (i = 0; i < vdev->vdev_children; i++) { 2854 vdev_t *vc = vdev->vdev_child[i]; 2855 2856 if (vc->vdev_path == NULL) { 2857 vc = zdb_vdev_lookup(vc, path); 2858 if (vc == NULL) 2859 continue; 2860 else 2861 return (vc); 2862 } 2863 2864 p = strrchr(vc->vdev_path, '/'); 2865 p = p ? p + 1 : vc->vdev_path; 2866 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 2867 2868 if (strcmp(vc->vdev_path, path) == 0) 2869 return (vc); 2870 if (strcmp(p, path) == 0) 2871 return (vc); 2872 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 2873 return (vc); 2874 } 2875 2876 return (NULL); 2877 } 2878 2879 /* 2880 * Read a block from a pool and print it out. The syntax of the 2881 * block descriptor is: 2882 * 2883 * pool:vdev_specifier:offset:size[:flags] 2884 * 2885 * pool - The name of the pool you wish to read from 2886 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 2887 * offset - offset, in hex, in bytes 2888 * size - Amount of data to read, in hex, in bytes 2889 * flags - A string of characters specifying options 2890 * b: Decode a blkptr at given offset within block 2891 * *c: Calculate and display checksums 2892 * d: Decompress data before dumping 2893 * e: Byteswap data before dumping 2894 * g: Display data as a gang block header 2895 * i: Display as an indirect block 2896 * p: Do I/O to physical offset 2897 * r: Dump raw data to stdout 2898 * 2899 * * = not yet implemented 2900 */ 2901 static void 2902 zdb_read_block(char *thing, spa_t *spa) 2903 { 2904 blkptr_t blk, *bp = &blk; 2905 dva_t *dva = bp->blk_dva; 2906 int flags = 0; 2907 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 2908 zio_t *zio; 2909 vdev_t *vd; 2910 void *pbuf, *lbuf, *buf; 2911 char *s, *p, *dup, *vdev, *flagstr; 2912 int i, error; 2913 2914 dup = strdup(thing); 2915 s = strtok(dup, ":"); 2916 vdev = s ? s : ""; 2917 s = strtok(NULL, ":"); 2918 offset = strtoull(s ? s : "", NULL, 16); 2919 s = strtok(NULL, ":"); 2920 size = strtoull(s ? s : "", NULL, 16); 2921 s = strtok(NULL, ":"); 2922 flagstr = s ? s : ""; 2923 2924 s = NULL; 2925 if (size == 0) 2926 s = "size must not be zero"; 2927 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 2928 s = "size must be a multiple of sector size"; 2929 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 2930 s = "offset must be a multiple of sector size"; 2931 if (s) { 2932 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 2933 free(dup); 2934 return; 2935 } 2936 2937 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 2938 for (i = 0; flagstr[i]; i++) { 2939 int bit = flagbits[(uchar_t)flagstr[i]]; 2940 2941 if (bit == 0) { 2942 (void) printf("***Invalid flag: %c\n", 2943 flagstr[i]); 2944 continue; 2945 } 2946 flags |= bit; 2947 2948 /* If it's not something with an argument, keep going */ 2949 if ((bit & (ZDB_FLAG_CHECKSUM | 2950 ZDB_FLAG_PRINT_BLKPTR)) == 0) 2951 continue; 2952 2953 p = &flagstr[i + 1]; 2954 if (bit == ZDB_FLAG_PRINT_BLKPTR) 2955 blkptr_offset = strtoull(p, &p, 16); 2956 if (*p != ':' && *p != '\0') { 2957 (void) printf("***Invalid flag arg: '%s'\n", s); 2958 free(dup); 2959 return; 2960 } 2961 } 2962 } 2963 2964 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 2965 if (vd == NULL) { 2966 (void) printf("***Invalid vdev: %s\n", vdev); 2967 free(dup); 2968 return; 2969 } else { 2970 if (vd->vdev_path) 2971 (void) fprintf(stderr, "Found vdev: %s\n", 2972 vd->vdev_path); 2973 else 2974 (void) fprintf(stderr, "Found vdev type: %s\n", 2975 vd->vdev_ops->vdev_op_type); 2976 } 2977 2978 psize = size; 2979 lsize = size; 2980 2981 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 2982 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 2983 2984 BP_ZERO(bp); 2985 2986 DVA_SET_VDEV(&dva[0], vd->vdev_id); 2987 DVA_SET_OFFSET(&dva[0], offset); 2988 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 2989 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 2990 2991 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 2992 2993 BP_SET_LSIZE(bp, lsize); 2994 BP_SET_PSIZE(bp, psize); 2995 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 2996 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 2997 BP_SET_TYPE(bp, DMU_OT_NONE); 2998 BP_SET_LEVEL(bp, 0); 2999 BP_SET_DEDUP(bp, 0); 3000 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 3001 3002 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 3003 zio = zio_root(spa, NULL, NULL, 0); 3004 3005 if (vd == vd->vdev_top) { 3006 /* 3007 * Treat this as a normal block read. 3008 */ 3009 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL, 3010 ZIO_PRIORITY_SYNC_READ, 3011 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 3012 } else { 3013 /* 3014 * Treat this as a vdev child I/O. 3015 */ 3016 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize, 3017 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 3018 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 3019 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 3020 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL)); 3021 } 3022 3023 error = zio_wait(zio); 3024 spa_config_exit(spa, SCL_STATE, FTAG); 3025 3026 if (error) { 3027 (void) printf("Read of %s failed, error: %d\n", thing, error); 3028 goto out; 3029 } 3030 3031 if (flags & ZDB_FLAG_DECOMPRESS) { 3032 /* 3033 * We don't know how the data was compressed, so just try 3034 * every decompress function at every inflated blocksize. 3035 */ 3036 enum zio_compress c; 3037 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3038 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3039 3040 bcopy(pbuf, pbuf2, psize); 3041 3042 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize, 3043 SPA_MAXBLOCKSIZE - psize) == 0); 3044 3045 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 3046 SPA_MAXBLOCKSIZE - psize) == 0); 3047 3048 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 3049 lsize -= SPA_MINBLOCKSIZE) { 3050 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 3051 if (zio_decompress_data(c, pbuf, lbuf, 3052 psize, lsize) == 0 && 3053 zio_decompress_data(c, pbuf2, lbuf2, 3054 psize, lsize) == 0 && 3055 bcmp(lbuf, lbuf2, lsize) == 0) 3056 break; 3057 } 3058 if (c != ZIO_COMPRESS_FUNCTIONS) 3059 break; 3060 lsize -= SPA_MINBLOCKSIZE; 3061 } 3062 3063 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 3064 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 3065 3066 if (lsize <= psize) { 3067 (void) printf("Decompress of %s failed\n", thing); 3068 goto out; 3069 } 3070 buf = lbuf; 3071 size = lsize; 3072 } else { 3073 buf = pbuf; 3074 size = psize; 3075 } 3076 3077 if (flags & ZDB_FLAG_PRINT_BLKPTR) 3078 zdb_print_blkptr((blkptr_t *)(void *) 3079 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 3080 else if (flags & ZDB_FLAG_RAW) 3081 zdb_dump_block_raw(buf, size, flags); 3082 else if (flags & ZDB_FLAG_INDIRECT) 3083 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 3084 flags); 3085 else if (flags & ZDB_FLAG_GBH) 3086 zdb_dump_gbh(buf, flags); 3087 else 3088 zdb_dump_block(thing, buf, size, flags); 3089 3090 out: 3091 umem_free(pbuf, SPA_MAXBLOCKSIZE); 3092 umem_free(lbuf, SPA_MAXBLOCKSIZE); 3093 free(dup); 3094 } 3095 3096 static boolean_t 3097 pool_match(nvlist_t *cfg, char *tgt) 3098 { 3099 uint64_t v, guid = strtoull(tgt, NULL, 0); 3100 char *s; 3101 3102 if (guid != 0) { 3103 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) 3104 return (v == guid); 3105 } else { 3106 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) 3107 return (strcmp(s, tgt) == 0); 3108 } 3109 return (B_FALSE); 3110 } 3111 3112 static char * 3113 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) 3114 { 3115 nvlist_t *pools; 3116 nvlist_t *match = NULL; 3117 char *name = NULL; 3118 char *sepp = NULL; 3119 char sep; 3120 int count = 0; 3121 importargs_t args = { 0 }; 3122 3123 args.paths = dirc; 3124 args.path = dirv; 3125 args.can_be_active = B_TRUE; 3126 3127 if ((sepp = strpbrk(*target, "/@")) != NULL) { 3128 sep = *sepp; 3129 *sepp = '\0'; 3130 } 3131 3132 pools = zpool_search_import(g_zfs, &args); 3133 3134 if (pools != NULL) { 3135 nvpair_t *elem = NULL; 3136 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 3137 verify(nvpair_value_nvlist(elem, configp) == 0); 3138 if (pool_match(*configp, *target)) { 3139 count++; 3140 if (match != NULL) { 3141 /* print previously found config */ 3142 if (name != NULL) { 3143 (void) printf("%s\n", name); 3144 dump_nvlist(match, 8); 3145 name = NULL; 3146 } 3147 (void) printf("%s\n", 3148 nvpair_name(elem)); 3149 dump_nvlist(*configp, 8); 3150 } else { 3151 match = *configp; 3152 name = nvpair_name(elem); 3153 } 3154 } 3155 } 3156 } 3157 if (count > 1) 3158 (void) fatal("\tMatched %d pools - use pool GUID " 3159 "instead of pool name or \n" 3160 "\tpool name part of a dataset name to select pool", count); 3161 3162 if (sepp) 3163 *sepp = sep; 3164 /* 3165 * If pool GUID was specified for pool id, replace it with pool name 3166 */ 3167 if (name && (strstr(*target, name) != *target)) { 3168 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); 3169 3170 *target = umem_alloc(sz, UMEM_NOFAIL); 3171 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); 3172 } 3173 3174 *configp = name ? match : NULL; 3175 3176 return (name); 3177 } 3178 3179 int 3180 main(int argc, char **argv) 3181 { 3182 int i, c; 3183 struct rlimit rl = { 1024, 1024 }; 3184 spa_t *spa = NULL; 3185 objset_t *os = NULL; 3186 int dump_all = 1; 3187 int verbose = 0; 3188 int error = 0; 3189 char **searchdirs = NULL; 3190 int nsearch = 0; 3191 char *target; 3192 nvlist_t *policy = NULL; 3193 uint64_t max_txg = UINT64_MAX; 3194 int rewind = ZPOOL_NEVER_REWIND; 3195 3196 (void) setrlimit(RLIMIT_NOFILE, &rl); 3197 (void) enable_extended_FILE_stdio(-1, -1); 3198 3199 dprintf_setup(&argc, argv); 3200 3201 while ((c = getopt(argc, argv, "bcdhilmM:suCDRSAFLXevp:t:U:P")) != -1) { 3202 switch (c) { 3203 case 'b': 3204 case 'c': 3205 case 'd': 3206 case 'h': 3207 case 'i': 3208 case 'l': 3209 case 'm': 3210 case 's': 3211 case 'u': 3212 case 'C': 3213 case 'D': 3214 case 'R': 3215 case 'S': 3216 dump_opt[c]++; 3217 dump_all = 0; 3218 break; 3219 case 'A': 3220 case 'F': 3221 case 'L': 3222 case 'X': 3223 case 'e': 3224 case 'P': 3225 dump_opt[c]++; 3226 break; 3227 case 'v': 3228 verbose++; 3229 break; 3230 case 'M': 3231 max_inflight = strtoull(optarg, NULL, 0); 3232 if (max_inflight == 0) { 3233 (void) fprintf(stderr, "maximum number " 3234 "of inflight I/Os must be greater " 3235 "than 0\n"); 3236 usage(); 3237 } 3238 break; 3239 case 'p': 3240 if (searchdirs == NULL) { 3241 searchdirs = umem_alloc(sizeof (char *), 3242 UMEM_NOFAIL); 3243 } else { 3244 char **tmp = umem_alloc((nsearch + 1) * 3245 sizeof (char *), UMEM_NOFAIL); 3246 bcopy(searchdirs, tmp, nsearch * 3247 sizeof (char *)); 3248 umem_free(searchdirs, 3249 nsearch * sizeof (char *)); 3250 searchdirs = tmp; 3251 } 3252 searchdirs[nsearch++] = optarg; 3253 break; 3254 case 't': 3255 max_txg = strtoull(optarg, NULL, 0); 3256 if (max_txg < TXG_INITIAL) { 3257 (void) fprintf(stderr, "incorrect txg " 3258 "specified: %s\n", optarg); 3259 usage(); 3260 } 3261 break; 3262 case 'U': 3263 spa_config_path = optarg; 3264 break; 3265 default: 3266 usage(); 3267 break; 3268 } 3269 } 3270 3271 if (!dump_opt['e'] && searchdirs != NULL) { 3272 (void) fprintf(stderr, "-p option requires use of -e\n"); 3273 usage(); 3274 } 3275 3276 kernel_init(FREAD); 3277 g_zfs = libzfs_init(); 3278 ASSERT(g_zfs != NULL); 3279 3280 if (dump_all) 3281 verbose = MAX(verbose, 1); 3282 3283 for (c = 0; c < 256; c++) { 3284 if (dump_all && !strchr("elAFLRSXP", c)) 3285 dump_opt[c] = 1; 3286 if (dump_opt[c]) 3287 dump_opt[c] += verbose; 3288 } 3289 3290 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 3291 zfs_recover = (dump_opt['A'] > 1); 3292 3293 argc -= optind; 3294 argv += optind; 3295 3296 if (argc < 2 && dump_opt['R']) 3297 usage(); 3298 if (argc < 1) { 3299 if (!dump_opt['e'] && dump_opt['C']) { 3300 dump_cachefile(spa_config_path); 3301 return (0); 3302 } 3303 usage(); 3304 } 3305 3306 if (dump_opt['l']) { 3307 dump_label(argv[0]); 3308 return (0); 3309 } 3310 3311 if (dump_opt['X'] || dump_opt['F']) 3312 rewind = ZPOOL_DO_REWIND | 3313 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 3314 3315 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 3316 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 || 3317 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0) 3318 fatal("internal error: %s", strerror(ENOMEM)); 3319 3320 error = 0; 3321 target = argv[0]; 3322 3323 if (dump_opt['e']) { 3324 nvlist_t *cfg = NULL; 3325 char *name = find_zpool(&target, &cfg, nsearch, searchdirs); 3326 3327 error = ENOENT; 3328 if (name) { 3329 if (dump_opt['C'] > 1) { 3330 (void) printf("\nConfiguration for import:\n"); 3331 dump_nvlist(cfg, 8); 3332 } 3333 if (nvlist_add_nvlist(cfg, 3334 ZPOOL_REWIND_POLICY, policy) != 0) { 3335 fatal("can't open '%s': %s", 3336 target, strerror(ENOMEM)); 3337 } 3338 if ((error = spa_import(name, cfg, NULL, 3339 ZFS_IMPORT_MISSING_LOG)) != 0) { 3340 error = spa_import(name, cfg, NULL, 3341 ZFS_IMPORT_VERBATIM); 3342 } 3343 } 3344 } 3345 3346 if (error == 0) { 3347 if (strpbrk(target, "/@") == NULL || dump_opt['R']) { 3348 error = spa_open_rewind(target, &spa, FTAG, policy, 3349 NULL); 3350 if (error) { 3351 /* 3352 * If we're missing the log device then 3353 * try opening the pool after clearing the 3354 * log state. 3355 */ 3356 mutex_enter(&spa_namespace_lock); 3357 if ((spa = spa_lookup(target)) != NULL && 3358 spa->spa_log_state == SPA_LOG_MISSING) { 3359 spa->spa_log_state = SPA_LOG_CLEAR; 3360 error = 0; 3361 } 3362 mutex_exit(&spa_namespace_lock); 3363 3364 if (!error) { 3365 error = spa_open_rewind(target, &spa, 3366 FTAG, policy, NULL); 3367 } 3368 } 3369 } else { 3370 error = dmu_objset_own(target, DMU_OST_ANY, 3371 B_TRUE, FTAG, &os); 3372 } 3373 } 3374 nvlist_free(policy); 3375 3376 if (error) 3377 fatal("can't open '%s': %s", target, strerror(error)); 3378 3379 argv++; 3380 argc--; 3381 if (!dump_opt['R']) { 3382 if (argc > 0) { 3383 zopt_objects = argc; 3384 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 3385 for (i = 0; i < zopt_objects; i++) { 3386 errno = 0; 3387 zopt_object[i] = strtoull(argv[i], NULL, 0); 3388 if (zopt_object[i] == 0 && errno != 0) 3389 fatal("bad number %s: %s", 3390 argv[i], strerror(errno)); 3391 } 3392 } 3393 if (os != NULL) { 3394 dump_dir(os); 3395 } else if (zopt_objects > 0 && !dump_opt['m']) { 3396 dump_dir(spa->spa_meta_objset); 3397 } else { 3398 dump_zpool(spa); 3399 } 3400 } else { 3401 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 3402 flagbits['c'] = ZDB_FLAG_CHECKSUM; 3403 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 3404 flagbits['e'] = ZDB_FLAG_BSWAP; 3405 flagbits['g'] = ZDB_FLAG_GBH; 3406 flagbits['i'] = ZDB_FLAG_INDIRECT; 3407 flagbits['p'] = ZDB_FLAG_PHYS; 3408 flagbits['r'] = ZDB_FLAG_RAW; 3409 3410 for (i = 0; i < argc; i++) 3411 zdb_read_block(argv[i], spa); 3412 } 3413 3414 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG); 3415 3416 fuid_table_destroy(); 3417 sa_loaded = B_FALSE; 3418 3419 libzfs_fini(g_zfs); 3420 kernel_fini(); 3421 3422 return (0); 3423 } 3424