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