1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2011, 2014 by Delphix. All rights reserved. 25 */ 26 27 #include <stdio.h> 28 #include <unistd.h> 29 #include <stdio_ext.h> 30 #include <stdlib.h> 31 #include <ctype.h> 32 #include <sys/zfs_context.h> 33 #include <sys/spa.h> 34 #include <sys/spa_impl.h> 35 #include <sys/dmu.h> 36 #include <sys/zap.h> 37 #include <sys/fs/zfs.h> 38 #include <sys/zfs_znode.h> 39 #include <sys/zfs_sa.h> 40 #include <sys/sa.h> 41 #include <sys/sa_impl.h> 42 #include <sys/vdev.h> 43 #include <sys/vdev_impl.h> 44 #include <sys/metaslab_impl.h> 45 #include <sys/dmu_objset.h> 46 #include <sys/dsl_dir.h> 47 #include <sys/dsl_dataset.h> 48 #include <sys/dsl_pool.h> 49 #include <sys/dbuf.h> 50 #include <sys/zil.h> 51 #include <sys/zil_impl.h> 52 #include <sys/stat.h> 53 #include <sys/resource.h> 54 #include <sys/dmu_traverse.h> 55 #include <sys/zio_checksum.h> 56 #include <sys/zio_compress.h> 57 #include <sys/zfs_fuid.h> 58 #include <sys/arc.h> 59 #include <sys/ddt.h> 60 #include <sys/zfeature.h> 61 #include <zfs_comutil.h> 62 #undef ZFS_MAXNAMELEN 63 #undef verify 64 #include <libzfs.h> 65 66 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \ 67 zio_compress_table[(idx)].ci_name : "UNKNOWN") 68 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \ 69 zio_checksum_table[(idx)].ci_name : "UNKNOWN") 70 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \ 71 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \ 72 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN") 73 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \ 74 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \ 75 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES)) 76 77 #ifndef lint 78 extern boolean_t zfs_recover; 79 extern uint64_t zfs_arc_max, zfs_arc_meta_limit; 80 #else 81 boolean_t zfs_recover; 82 uint64_t zfs_arc_max, zfs_arc_meta_limit; 83 #endif 84 85 const char cmdname[] = "zdb"; 86 uint8_t dump_opt[256]; 87 88 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size); 89 90 extern void dump_intent_log(zilog_t *); 91 uint64_t *zopt_object = NULL; 92 int zopt_objects = 0; 93 libzfs_handle_t *g_zfs; 94 uint64_t max_inflight = 1000; 95 96 /* 97 * These libumem hooks provide a reasonable set of defaults for the allocator's 98 * debugging facilities. 99 */ 100 const char * 101 _umem_debug_init() 102 { 103 return ("default,verbose"); /* $UMEM_DEBUG setting */ 104 } 105 106 const char * 107 _umem_logging_init(void) 108 { 109 return ("fail,contents"); /* $UMEM_LOGGING setting */ 110 } 111 112 static void 113 usage(void) 114 { 115 (void) fprintf(stderr, 116 "Usage: %s [-CumMdibcsDvhLXFPA] [-t txg] [-e [-p path...]] " 117 "[-U config] [-I inflight I/Os] [-x dumpdir] poolname [object...]\n" 118 " %s [-divPA] [-e -p path...] [-U config] dataset " 119 "[object...]\n" 120 " %s -mM [-LXFPA] [-t txg] [-e [-p path...]] [-U config] " 121 "poolname [vdev [metaslab...]]\n" 122 " %s -R [-A] [-e [-p path...]] poolname " 123 "vdev:offset:size[:flags]\n" 124 " %s -S [-PA] [-e [-p path...]] [-U config] poolname\n" 125 " %s -l [-uA] device\n" 126 " %s -C [-A] [-U config]\n\n", 127 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname); 128 129 (void) fprintf(stderr, " Dataset name must include at least one " 130 "separator character '/' or '@'\n"); 131 (void) fprintf(stderr, " If dataset name is specified, only that " 132 "dataset is dumped\n"); 133 (void) fprintf(stderr, " If object numbers are specified, only " 134 "those objects are dumped\n\n"); 135 (void) fprintf(stderr, " Options to control amount of output:\n"); 136 (void) fprintf(stderr, " -u uberblock\n"); 137 (void) fprintf(stderr, " -d dataset(s)\n"); 138 (void) fprintf(stderr, " -i intent logs\n"); 139 (void) fprintf(stderr, " -C config (or cachefile if alone)\n"); 140 (void) fprintf(stderr, " -h pool history\n"); 141 (void) fprintf(stderr, " -b block statistics\n"); 142 (void) fprintf(stderr, " -m metaslabs\n"); 143 (void) fprintf(stderr, " -M metaslab groups\n"); 144 (void) fprintf(stderr, " -c checksum all metadata (twice for " 145 "all data) blocks\n"); 146 (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); 147 (void) fprintf(stderr, " -D dedup statistics\n"); 148 (void) fprintf(stderr, " -S simulate dedup to measure effect\n"); 149 (void) fprintf(stderr, " -v verbose (applies to all others)\n"); 150 (void) fprintf(stderr, " -l dump label contents\n"); 151 (void) fprintf(stderr, " -L disable leak tracking (do not " 152 "load spacemaps)\n"); 153 (void) fprintf(stderr, " -R read and display block from a " 154 "device\n\n"); 155 (void) fprintf(stderr, " Below options are intended for use " 156 "with other options:\n"); 157 (void) fprintf(stderr, " -A ignore assertions (-A), enable " 158 "panic recovery (-AA) or both (-AAA)\n"); 159 (void) fprintf(stderr, " -F attempt automatic rewind within " 160 "safe range of transaction groups\n"); 161 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate " 162 "cachefile\n"); 163 (void) fprintf(stderr, " -X attempt extreme rewind (does not " 164 "work with dataset)\n"); 165 (void) fprintf(stderr, " -e pool is exported/destroyed/" 166 "has altroot/not in a cachefile\n"); 167 (void) fprintf(stderr, " -p <path> -- use one or more with " 168 "-e to specify path to vdev dir\n"); 169 (void) fprintf(stderr, " -x <dumpdir> -- " 170 "dump all read blocks into specified directory\n"); 171 (void) fprintf(stderr, " -P print numbers in parseable form\n"); 172 (void) fprintf(stderr, " -t <txg> -- highest txg to use when " 173 "searching for uberblocks\n"); 174 (void) fprintf(stderr, " -I <number of inflight I/Os> -- " 175 "specify the maximum number of " 176 "checksumming I/Os [default is 200]\n"); 177 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 178 "to make only that option verbose\n"); 179 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 180 exit(1); 181 } 182 183 /* 184 * Called for usage errors that are discovered after a call to spa_open(), 185 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. 186 */ 187 188 static void 189 fatal(const char *fmt, ...) 190 { 191 va_list ap; 192 193 va_start(ap, fmt); 194 (void) fprintf(stderr, "%s: ", cmdname); 195 (void) vfprintf(stderr, fmt, ap); 196 va_end(ap); 197 (void) fprintf(stderr, "\n"); 198 199 exit(1); 200 } 201 202 /* ARGSUSED */ 203 static void 204 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 205 { 206 nvlist_t *nv; 207 size_t nvsize = *(uint64_t *)data; 208 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 209 210 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH)); 211 212 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 213 214 umem_free(packed, nvsize); 215 216 dump_nvlist(nv, 8); 217 218 nvlist_free(nv); 219 } 220 221 /* ARGSUSED */ 222 static void 223 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size) 224 { 225 spa_history_phys_t *shp = data; 226 227 if (shp == NULL) 228 return; 229 230 (void) printf("\t\tpool_create_len = %llu\n", 231 (u_longlong_t)shp->sh_pool_create_len); 232 (void) printf("\t\tphys_max_off = %llu\n", 233 (u_longlong_t)shp->sh_phys_max_off); 234 (void) printf("\t\tbof = %llu\n", 235 (u_longlong_t)shp->sh_bof); 236 (void) printf("\t\teof = %llu\n", 237 (u_longlong_t)shp->sh_eof); 238 (void) printf("\t\trecords_lost = %llu\n", 239 (u_longlong_t)shp->sh_records_lost); 240 } 241 242 static void 243 zdb_nicenum(uint64_t num, char *buf) 244 { 245 if (dump_opt['P']) 246 (void) sprintf(buf, "%llu", (longlong_t)num); 247 else 248 nicenum(num, buf); 249 } 250 251 const char histo_stars[] = "****************************************"; 252 const int histo_width = sizeof (histo_stars) - 1; 253 254 static void 255 dump_histogram(const uint64_t *histo, int size, int offset) 256 { 257 int i; 258 int minidx = size - 1; 259 int maxidx = 0; 260 uint64_t max = 0; 261 262 for (i = 0; i < size; i++) { 263 if (histo[i] > max) 264 max = histo[i]; 265 if (histo[i] > 0 && i > maxidx) 266 maxidx = i; 267 if (histo[i] > 0 && i < minidx) 268 minidx = i; 269 } 270 271 if (max < histo_width) 272 max = histo_width; 273 274 for (i = minidx; i <= maxidx; i++) { 275 (void) printf("\t\t\t%3u: %6llu %s\n", 276 i + offset, (u_longlong_t)histo[i], 277 &histo_stars[(max - histo[i]) * histo_width / max]); 278 } 279 } 280 281 static void 282 dump_zap_stats(objset_t *os, uint64_t object) 283 { 284 int error; 285 zap_stats_t zs; 286 287 error = zap_get_stats(os, object, &zs); 288 if (error) 289 return; 290 291 if (zs.zs_ptrtbl_len == 0) { 292 ASSERT(zs.zs_num_blocks == 1); 293 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 294 (u_longlong_t)zs.zs_blocksize, 295 (u_longlong_t)zs.zs_num_entries); 296 return; 297 } 298 299 (void) printf("\tFat ZAP stats:\n"); 300 301 (void) printf("\t\tPointer table:\n"); 302 (void) printf("\t\t\t%llu elements\n", 303 (u_longlong_t)zs.zs_ptrtbl_len); 304 (void) printf("\t\t\tzt_blk: %llu\n", 305 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 306 (void) printf("\t\t\tzt_numblks: %llu\n", 307 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 308 (void) printf("\t\t\tzt_shift: %llu\n", 309 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 310 (void) printf("\t\t\tzt_blks_copied: %llu\n", 311 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 312 (void) printf("\t\t\tzt_nextblk: %llu\n", 313 (u_longlong_t)zs.zs_ptrtbl_nextblk); 314 315 (void) printf("\t\tZAP entries: %llu\n", 316 (u_longlong_t)zs.zs_num_entries); 317 (void) printf("\t\tLeaf blocks: %llu\n", 318 (u_longlong_t)zs.zs_num_leafs); 319 (void) printf("\t\tTotal blocks: %llu\n", 320 (u_longlong_t)zs.zs_num_blocks); 321 (void) printf("\t\tzap_block_type: 0x%llx\n", 322 (u_longlong_t)zs.zs_block_type); 323 (void) printf("\t\tzap_magic: 0x%llx\n", 324 (u_longlong_t)zs.zs_magic); 325 (void) printf("\t\tzap_salt: 0x%llx\n", 326 (u_longlong_t)zs.zs_salt); 327 328 (void) printf("\t\tLeafs with 2^n pointers:\n"); 329 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0); 330 331 (void) printf("\t\tBlocks with n*5 entries:\n"); 332 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0); 333 334 (void) printf("\t\tBlocks n/10 full:\n"); 335 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0); 336 337 (void) printf("\t\tEntries with n chunks:\n"); 338 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0); 339 340 (void) printf("\t\tBuckets with n entries:\n"); 341 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0); 342 } 343 344 /*ARGSUSED*/ 345 static void 346 dump_none(objset_t *os, uint64_t object, void *data, size_t size) 347 { 348 } 349 350 /*ARGSUSED*/ 351 static void 352 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size) 353 { 354 (void) printf("\tUNKNOWN OBJECT TYPE\n"); 355 } 356 357 /*ARGSUSED*/ 358 void 359 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 360 { 361 } 362 363 /*ARGSUSED*/ 364 static void 365 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 366 { 367 } 368 369 /*ARGSUSED*/ 370 static void 371 dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 372 { 373 zap_cursor_t zc; 374 zap_attribute_t attr; 375 void *prop; 376 int i; 377 378 dump_zap_stats(os, object); 379 (void) printf("\n"); 380 381 for (zap_cursor_init(&zc, os, object); 382 zap_cursor_retrieve(&zc, &attr) == 0; 383 zap_cursor_advance(&zc)) { 384 (void) printf("\t\t%s = ", attr.za_name); 385 if (attr.za_num_integers == 0) { 386 (void) printf("\n"); 387 continue; 388 } 389 prop = umem_zalloc(attr.za_num_integers * 390 attr.za_integer_length, UMEM_NOFAIL); 391 (void) zap_lookup(os, object, attr.za_name, 392 attr.za_integer_length, attr.za_num_integers, prop); 393 if (attr.za_integer_length == 1) { 394 (void) printf("%s", (char *)prop); 395 } else { 396 for (i = 0; i < attr.za_num_integers; i++) { 397 switch (attr.za_integer_length) { 398 case 2: 399 (void) printf("%u ", 400 ((uint16_t *)prop)[i]); 401 break; 402 case 4: 403 (void) printf("%u ", 404 ((uint32_t *)prop)[i]); 405 break; 406 case 8: 407 (void) printf("%lld ", 408 (u_longlong_t)((int64_t *)prop)[i]); 409 break; 410 } 411 } 412 } 413 (void) printf("\n"); 414 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 415 } 416 zap_cursor_fini(&zc); 417 } 418 419 /*ARGSUSED*/ 420 static void 421 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size) 422 { 423 dump_zap_stats(os, object); 424 /* contents are printed elsewhere, properly decoded */ 425 } 426 427 /*ARGSUSED*/ 428 static void 429 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size) 430 { 431 zap_cursor_t zc; 432 zap_attribute_t attr; 433 434 dump_zap_stats(os, object); 435 (void) printf("\n"); 436 437 for (zap_cursor_init(&zc, os, object); 438 zap_cursor_retrieve(&zc, &attr) == 0; 439 zap_cursor_advance(&zc)) { 440 (void) printf("\t\t%s = ", attr.za_name); 441 if (attr.za_num_integers == 0) { 442 (void) printf("\n"); 443 continue; 444 } 445 (void) printf(" %llx : [%d:%d:%d]\n", 446 (u_longlong_t)attr.za_first_integer, 447 (int)ATTR_LENGTH(attr.za_first_integer), 448 (int)ATTR_BSWAP(attr.za_first_integer), 449 (int)ATTR_NUM(attr.za_first_integer)); 450 } 451 zap_cursor_fini(&zc); 452 } 453 454 /*ARGSUSED*/ 455 static void 456 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size) 457 { 458 zap_cursor_t zc; 459 zap_attribute_t attr; 460 uint16_t *layout_attrs; 461 int i; 462 463 dump_zap_stats(os, object); 464 (void) printf("\n"); 465 466 for (zap_cursor_init(&zc, os, object); 467 zap_cursor_retrieve(&zc, &attr) == 0; 468 zap_cursor_advance(&zc)) { 469 (void) printf("\t\t%s = [", attr.za_name); 470 if (attr.za_num_integers == 0) { 471 (void) printf("\n"); 472 continue; 473 } 474 475 VERIFY(attr.za_integer_length == 2); 476 layout_attrs = umem_zalloc(attr.za_num_integers * 477 attr.za_integer_length, UMEM_NOFAIL); 478 479 VERIFY(zap_lookup(os, object, attr.za_name, 480 attr.za_integer_length, 481 attr.za_num_integers, layout_attrs) == 0); 482 483 for (i = 0; i != attr.za_num_integers; i++) 484 (void) printf(" %d ", (int)layout_attrs[i]); 485 (void) printf("]\n"); 486 umem_free(layout_attrs, 487 attr.za_num_integers * attr.za_integer_length); 488 } 489 zap_cursor_fini(&zc); 490 } 491 492 /*ARGSUSED*/ 493 static void 494 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 495 { 496 zap_cursor_t zc; 497 zap_attribute_t attr; 498 const char *typenames[] = { 499 /* 0 */ "not specified", 500 /* 1 */ "FIFO", 501 /* 2 */ "Character Device", 502 /* 3 */ "3 (invalid)", 503 /* 4 */ "Directory", 504 /* 5 */ "5 (invalid)", 505 /* 6 */ "Block Device", 506 /* 7 */ "7 (invalid)", 507 /* 8 */ "Regular File", 508 /* 9 */ "9 (invalid)", 509 /* 10 */ "Symbolic Link", 510 /* 11 */ "11 (invalid)", 511 /* 12 */ "Socket", 512 /* 13 */ "Door", 513 /* 14 */ "Event Port", 514 /* 15 */ "15 (invalid)", 515 }; 516 517 dump_zap_stats(os, object); 518 (void) printf("\n"); 519 520 for (zap_cursor_init(&zc, os, object); 521 zap_cursor_retrieve(&zc, &attr) == 0; 522 zap_cursor_advance(&zc)) { 523 (void) printf("\t\t%s = %lld (type: %s)\n", 524 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 525 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 526 } 527 zap_cursor_fini(&zc); 528 } 529 530 int 531 get_dtl_refcount(vdev_t *vd) 532 { 533 int refcount = 0; 534 535 if (vd->vdev_ops->vdev_op_leaf) { 536 space_map_t *sm = vd->vdev_dtl_sm; 537 538 if (sm != NULL && 539 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 540 return (1); 541 return (0); 542 } 543 544 for (int c = 0; c < vd->vdev_children; c++) 545 refcount += get_dtl_refcount(vd->vdev_child[c]); 546 return (refcount); 547 } 548 549 int 550 get_metaslab_refcount(vdev_t *vd) 551 { 552 int refcount = 0; 553 554 if (vd->vdev_top == vd && !vd->vdev_removing) { 555 for (int m = 0; m < vd->vdev_ms_count; m++) { 556 space_map_t *sm = vd->vdev_ms[m]->ms_sm; 557 558 if (sm != NULL && 559 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 560 refcount++; 561 } 562 } 563 for (int c = 0; c < vd->vdev_children; c++) 564 refcount += get_metaslab_refcount(vd->vdev_child[c]); 565 566 return (refcount); 567 } 568 569 static int 570 verify_spacemap_refcounts(spa_t *spa) 571 { 572 uint64_t expected_refcount = 0; 573 uint64_t actual_refcount; 574 575 (void) feature_get_refcount(spa, 576 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM], 577 &expected_refcount); 578 actual_refcount = get_dtl_refcount(spa->spa_root_vdev); 579 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev); 580 581 if (expected_refcount != actual_refcount) { 582 (void) printf("space map refcount mismatch: expected %lld != " 583 "actual %lld\n", 584 (longlong_t)expected_refcount, 585 (longlong_t)actual_refcount); 586 return (2); 587 } 588 return (0); 589 } 590 591 static void 592 dump_spacemap(objset_t *os, space_map_t *sm) 593 { 594 uint64_t alloc, offset, entry; 595 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 596 "INVALID", "INVALID", "INVALID", "INVALID" }; 597 598 if (sm == NULL) 599 return; 600 601 /* 602 * Print out the freelist entries in both encoded and decoded form. 603 */ 604 alloc = 0; 605 for (offset = 0; offset < space_map_length(sm); 606 offset += sizeof (entry)) { 607 uint8_t mapshift = sm->sm_shift; 608 609 VERIFY0(dmu_read(os, space_map_object(sm), offset, 610 sizeof (entry), &entry, DMU_READ_PREFETCH)); 611 if (SM_DEBUG_DECODE(entry)) { 612 613 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n", 614 (u_longlong_t)(offset / sizeof (entry)), 615 ddata[SM_DEBUG_ACTION_DECODE(entry)], 616 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry), 617 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry)); 618 } else { 619 (void) printf("\t [%6llu] %c range:" 620 " %010llx-%010llx size: %06llx\n", 621 (u_longlong_t)(offset / sizeof (entry)), 622 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 623 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 624 mapshift) + sm->sm_start), 625 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 626 mapshift) + sm->sm_start + 627 (SM_RUN_DECODE(entry) << mapshift)), 628 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift)); 629 if (SM_TYPE_DECODE(entry) == SM_ALLOC) 630 alloc += SM_RUN_DECODE(entry) << mapshift; 631 else 632 alloc -= SM_RUN_DECODE(entry) << mapshift; 633 } 634 } 635 if (alloc != space_map_allocated(sm)) { 636 (void) printf("space_map_object alloc (%llu) INCONSISTENT " 637 "with space map summary (%llu)\n", 638 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc); 639 } 640 } 641 642 static void 643 dump_metaslab_stats(metaslab_t *msp) 644 { 645 char maxbuf[32]; 646 range_tree_t *rt = msp->ms_tree; 647 avl_tree_t *t = &msp->ms_size_tree; 648 int free_pct = range_tree_space(rt) * 100 / msp->ms_size; 649 650 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf); 651 652 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", 653 "segments", avl_numnodes(t), "maxsize", maxbuf, 654 "freepct", free_pct); 655 (void) printf("\tIn-memory histogram:\n"); 656 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 657 } 658 659 static void 660 dump_metaslab(metaslab_t *msp) 661 { 662 vdev_t *vd = msp->ms_group->mg_vd; 663 spa_t *spa = vd->vdev_spa; 664 space_map_t *sm = msp->ms_sm; 665 char freebuf[32]; 666 667 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf); 668 669 (void) printf( 670 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", 671 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start, 672 (u_longlong_t)space_map_object(sm), freebuf); 673 674 if (dump_opt['m'] > 2 && !dump_opt['L']) { 675 mutex_enter(&msp->ms_lock); 676 metaslab_load_wait(msp); 677 if (!msp->ms_loaded) { 678 VERIFY0(metaslab_load(msp)); 679 range_tree_stat_verify(msp->ms_tree); 680 } 681 dump_metaslab_stats(msp); 682 metaslab_unload(msp); 683 mutex_exit(&msp->ms_lock); 684 } 685 686 if (dump_opt['m'] > 1 && sm != NULL && 687 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) { 688 /* 689 * The space map histogram represents free space in chunks 690 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift). 691 */ 692 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n", 693 (u_longlong_t)msp->ms_fragmentation); 694 dump_histogram(sm->sm_phys->smp_histogram, 695 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift); 696 } 697 698 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) { 699 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift)); 700 701 mutex_enter(&msp->ms_lock); 702 dump_spacemap(spa->spa_meta_objset, msp->ms_sm); 703 mutex_exit(&msp->ms_lock); 704 } 705 } 706 707 static void 708 print_vdev_metaslab_header(vdev_t *vd) 709 { 710 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n", 711 (u_longlong_t)vd->vdev_id, 712 "metaslabs", (u_longlong_t)vd->vdev_ms_count, 713 "offset", "spacemap", "free"); 714 (void) printf("\t%15s %19s %15s %10s\n", 715 "---------------", "-------------------", 716 "---------------", "-------------"); 717 } 718 719 static void 720 dump_metaslab_groups(spa_t *spa) 721 { 722 vdev_t *rvd = spa->spa_root_vdev; 723 metaslab_class_t *mc = spa_normal_class(spa); 724 uint64_t fragmentation; 725 726 metaslab_class_histogram_verify(mc); 727 728 for (int c = 0; c < rvd->vdev_children; c++) { 729 vdev_t *tvd = rvd->vdev_child[c]; 730 metaslab_group_t *mg = tvd->vdev_mg; 731 732 if (mg->mg_class != mc) 733 continue; 734 735 metaslab_group_histogram_verify(mg); 736 mg->mg_fragmentation = metaslab_group_fragmentation(mg); 737 738 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t" 739 "fragmentation", 740 (u_longlong_t)tvd->vdev_id, 741 (u_longlong_t)tvd->vdev_ms_count); 742 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) { 743 (void) printf("%3s\n", "-"); 744 } else { 745 (void) printf("%3llu%%\n", 746 (u_longlong_t)mg->mg_fragmentation); 747 } 748 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 749 } 750 751 (void) printf("\tpool %s\tfragmentation", spa_name(spa)); 752 fragmentation = metaslab_class_fragmentation(mc); 753 if (fragmentation == ZFS_FRAG_INVALID) 754 (void) printf("\t%3s\n", "-"); 755 else 756 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation); 757 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 758 } 759 760 static void 761 dump_metaslabs(spa_t *spa) 762 { 763 vdev_t *vd, *rvd = spa->spa_root_vdev; 764 uint64_t m, c = 0, children = rvd->vdev_children; 765 766 (void) printf("\nMetaslabs:\n"); 767 768 if (!dump_opt['d'] && zopt_objects > 0) { 769 c = zopt_object[0]; 770 771 if (c >= children) 772 (void) fatal("bad vdev id: %llu", (u_longlong_t)c); 773 774 if (zopt_objects > 1) { 775 vd = rvd->vdev_child[c]; 776 print_vdev_metaslab_header(vd); 777 778 for (m = 1; m < zopt_objects; m++) { 779 if (zopt_object[m] < vd->vdev_ms_count) 780 dump_metaslab( 781 vd->vdev_ms[zopt_object[m]]); 782 else 783 (void) fprintf(stderr, "bad metaslab " 784 "number %llu\n", 785 (u_longlong_t)zopt_object[m]); 786 } 787 (void) printf("\n"); 788 return; 789 } 790 children = c + 1; 791 } 792 for (; c < children; c++) { 793 vd = rvd->vdev_child[c]; 794 print_vdev_metaslab_header(vd); 795 796 for (m = 0; m < vd->vdev_ms_count; m++) 797 dump_metaslab(vd->vdev_ms[m]); 798 (void) printf("\n"); 799 } 800 } 801 802 static void 803 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) 804 { 805 const ddt_phys_t *ddp = dde->dde_phys; 806 const ddt_key_t *ddk = &dde->dde_key; 807 char *types[4] = { "ditto", "single", "double", "triple" }; 808 char blkbuf[BP_SPRINTF_LEN]; 809 blkptr_t blk; 810 811 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 812 if (ddp->ddp_phys_birth == 0) 813 continue; 814 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); 815 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk); 816 (void) printf("index %llx refcnt %llu %s %s\n", 817 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, 818 types[p], blkbuf); 819 } 820 } 821 822 static void 823 dump_dedup_ratio(const ddt_stat_t *dds) 824 { 825 double rL, rP, rD, D, dedup, compress, copies; 826 827 if (dds->dds_blocks == 0) 828 return; 829 830 rL = (double)dds->dds_ref_lsize; 831 rP = (double)dds->dds_ref_psize; 832 rD = (double)dds->dds_ref_dsize; 833 D = (double)dds->dds_dsize; 834 835 dedup = rD / D; 836 compress = rL / rP; 837 copies = rD / rP; 838 839 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " 840 "dedup * compress / copies = %.2f\n\n", 841 dedup, compress, copies, dedup * compress / copies); 842 } 843 844 static void 845 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class) 846 { 847 char name[DDT_NAMELEN]; 848 ddt_entry_t dde; 849 uint64_t walk = 0; 850 dmu_object_info_t doi; 851 uint64_t count, dspace, mspace; 852 int error; 853 854 error = ddt_object_info(ddt, type, class, &doi); 855 856 if (error == ENOENT) 857 return; 858 ASSERT(error == 0); 859 860 if ((count = ddt_object_count(ddt, type, class)) == 0) 861 return; 862 863 dspace = doi.doi_physical_blocks_512 << 9; 864 mspace = doi.doi_fill_count * doi.doi_data_block_size; 865 866 ddt_object_name(ddt, type, class, name); 867 868 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n", 869 name, 870 (u_longlong_t)count, 871 (u_longlong_t)(dspace / count), 872 (u_longlong_t)(mspace / count)); 873 874 if (dump_opt['D'] < 3) 875 return; 876 877 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]); 878 879 if (dump_opt['D'] < 4) 880 return; 881 882 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE) 883 return; 884 885 (void) printf("%s contents:\n\n", name); 886 887 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0) 888 dump_dde(ddt, &dde, walk); 889 890 ASSERT(error == ENOENT); 891 892 (void) printf("\n"); 893 } 894 895 static void 896 dump_all_ddts(spa_t *spa) 897 { 898 ddt_histogram_t ddh_total = { 0 }; 899 ddt_stat_t dds_total = { 0 }; 900 901 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { 902 ddt_t *ddt = spa->spa_ddt[c]; 903 for (enum ddt_type type = 0; type < DDT_TYPES; type++) { 904 for (enum ddt_class class = 0; class < DDT_CLASSES; 905 class++) { 906 dump_ddt(ddt, type, class); 907 } 908 } 909 } 910 911 ddt_get_dedup_stats(spa, &dds_total); 912 913 if (dds_total.dds_blocks == 0) { 914 (void) printf("All DDTs are empty\n"); 915 return; 916 } 917 918 (void) printf("\n"); 919 920 if (dump_opt['D'] > 1) { 921 (void) printf("DDT histogram (aggregated over all DDTs):\n"); 922 ddt_get_dedup_histogram(spa, &ddh_total); 923 zpool_dump_ddt(&dds_total, &ddh_total); 924 } 925 926 dump_dedup_ratio(&dds_total); 927 } 928 929 static void 930 dump_dtl_seg(void *arg, uint64_t start, uint64_t size) 931 { 932 char *prefix = arg; 933 934 (void) printf("%s [%llu,%llu) length %llu\n", 935 prefix, 936 (u_longlong_t)start, 937 (u_longlong_t)(start + size), 938 (u_longlong_t)(size)); 939 } 940 941 static void 942 dump_dtl(vdev_t *vd, int indent) 943 { 944 spa_t *spa = vd->vdev_spa; 945 boolean_t required; 946 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" }; 947 char prefix[256]; 948 949 spa_vdev_state_enter(spa, SCL_NONE); 950 required = vdev_dtl_required(vd); 951 (void) spa_vdev_state_exit(spa, NULL, 0); 952 953 if (indent == 0) 954 (void) printf("\nDirty time logs:\n\n"); 955 956 (void) printf("\t%*s%s [%s]\n", indent, "", 957 vd->vdev_path ? vd->vdev_path : 958 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 959 required ? "DTL-required" : "DTL-expendable"); 960 961 for (int t = 0; t < DTL_TYPES; t++) { 962 range_tree_t *rt = vd->vdev_dtl[t]; 963 if (range_tree_space(rt) == 0) 964 continue; 965 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 966 indent + 2, "", name[t]); 967 mutex_enter(rt->rt_lock); 968 range_tree_walk(rt, dump_dtl_seg, prefix); 969 mutex_exit(rt->rt_lock); 970 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 971 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm); 972 } 973 974 for (int c = 0; c < vd->vdev_children; c++) 975 dump_dtl(vd->vdev_child[c], indent + 4); 976 } 977 978 static void 979 dump_history(spa_t *spa) 980 { 981 nvlist_t **events = NULL; 982 char buf[SPA_MAXBLOCKSIZE]; 983 uint64_t resid, len, off = 0; 984 uint_t num = 0; 985 int error; 986 time_t tsec; 987 struct tm t; 988 char tbuf[30]; 989 char internalstr[MAXPATHLEN]; 990 991 do { 992 len = sizeof (buf); 993 994 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 995 (void) fprintf(stderr, "Unable to read history: " 996 "error %d\n", error); 997 return; 998 } 999 1000 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 1001 break; 1002 1003 off -= resid; 1004 } while (len != 0); 1005 1006 (void) printf("\nHistory:\n"); 1007 for (int i = 0; i < num; i++) { 1008 uint64_t time, txg, ievent; 1009 char *cmd, *intstr; 1010 boolean_t printed = B_FALSE; 1011 1012 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, 1013 &time) != 0) 1014 goto next; 1015 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, 1016 &cmd) != 0) { 1017 if (nvlist_lookup_uint64(events[i], 1018 ZPOOL_HIST_INT_EVENT, &ievent) != 0) 1019 goto next; 1020 verify(nvlist_lookup_uint64(events[i], 1021 ZPOOL_HIST_TXG, &txg) == 0); 1022 verify(nvlist_lookup_string(events[i], 1023 ZPOOL_HIST_INT_STR, &intstr) == 0); 1024 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 1025 goto next; 1026 1027 (void) snprintf(internalstr, 1028 sizeof (internalstr), 1029 "[internal %s txg:%lld] %s", 1030 zfs_history_event_names[ievent], txg, 1031 intstr); 1032 cmd = internalstr; 1033 } 1034 tsec = time; 1035 (void) localtime_r(&tsec, &t); 1036 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 1037 (void) printf("%s %s\n", tbuf, cmd); 1038 printed = B_TRUE; 1039 1040 next: 1041 if (dump_opt['h'] > 1) { 1042 if (!printed) 1043 (void) printf("unrecognized record:\n"); 1044 dump_nvlist(events[i], 2); 1045 } 1046 } 1047 } 1048 1049 /*ARGSUSED*/ 1050 static void 1051 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 1052 { 1053 } 1054 1055 static uint64_t 1056 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, 1057 const zbookmark_phys_t *zb) 1058 { 1059 if (dnp == NULL) { 1060 ASSERT(zb->zb_level < 0); 1061 if (zb->zb_object == 0) 1062 return (zb->zb_blkid); 1063 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 1064 } 1065 1066 ASSERT(zb->zb_level >= 0); 1067 1068 return ((zb->zb_blkid << 1069 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 1070 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 1071 } 1072 1073 static void 1074 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp) 1075 { 1076 const dva_t *dva = bp->blk_dva; 1077 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 1078 1079 if (dump_opt['b'] >= 6) { 1080 snprintf_blkptr(blkbuf, buflen, bp); 1081 return; 1082 } 1083 1084 if (BP_IS_EMBEDDED(bp)) { 1085 (void) sprintf(blkbuf, 1086 "EMBEDDED et=%u %llxL/%llxP B=%llu", 1087 (int)BPE_GET_ETYPE(bp), 1088 (u_longlong_t)BPE_GET_LSIZE(bp), 1089 (u_longlong_t)BPE_GET_PSIZE(bp), 1090 (u_longlong_t)bp->blk_birth); 1091 return; 1092 } 1093 1094 blkbuf[0] = '\0'; 1095 for (int i = 0; i < ndvas; i++) 1096 (void) snprintf(blkbuf + strlen(blkbuf), 1097 buflen - strlen(blkbuf), "%llu:%llx:%llx ", 1098 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 1099 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 1100 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 1101 1102 if (BP_IS_HOLE(bp)) { 1103 (void) snprintf(blkbuf + strlen(blkbuf), 1104 buflen - strlen(blkbuf), "B=%llu", 1105 (u_longlong_t)bp->blk_birth); 1106 } else { 1107 (void) snprintf(blkbuf + strlen(blkbuf), 1108 buflen - strlen(blkbuf), 1109 "%llxL/%llxP F=%llu B=%llu/%llu", 1110 (u_longlong_t)BP_GET_LSIZE(bp), 1111 (u_longlong_t)BP_GET_PSIZE(bp), 1112 (u_longlong_t)BP_GET_FILL(bp), 1113 (u_longlong_t)bp->blk_birth, 1114 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 1115 } 1116 } 1117 1118 static void 1119 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb, 1120 const dnode_phys_t *dnp) 1121 { 1122 char blkbuf[BP_SPRINTF_LEN]; 1123 int l; 1124 1125 if (!BP_IS_EMBEDDED(bp)) { 1126 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 1127 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 1128 } 1129 1130 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 1131 1132 ASSERT(zb->zb_level >= 0); 1133 1134 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 1135 if (l == zb->zb_level) { 1136 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 1137 } else { 1138 (void) printf(" "); 1139 } 1140 } 1141 1142 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1143 (void) printf("%s\n", blkbuf); 1144 } 1145 1146 static int 1147 visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 1148 blkptr_t *bp, const zbookmark_phys_t *zb) 1149 { 1150 int err = 0; 1151 1152 if (bp->blk_birth == 0) 1153 return (0); 1154 1155 print_indirect(bp, zb, dnp); 1156 1157 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) { 1158 uint32_t flags = ARC_WAIT; 1159 int i; 1160 blkptr_t *cbp; 1161 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 1162 arc_buf_t *buf; 1163 uint64_t fill = 0; 1164 1165 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 1166 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 1167 if (err) 1168 return (err); 1169 ASSERT(buf->b_data); 1170 1171 /* recursively visit blocks below this */ 1172 cbp = buf->b_data; 1173 for (i = 0; i < epb; i++, cbp++) { 1174 zbookmark_phys_t czb; 1175 1176 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 1177 zb->zb_level - 1, 1178 zb->zb_blkid * epb + i); 1179 err = visit_indirect(spa, dnp, cbp, &czb); 1180 if (err) 1181 break; 1182 fill += BP_GET_FILL(cbp); 1183 } 1184 if (!err) 1185 ASSERT3U(fill, ==, BP_GET_FILL(bp)); 1186 (void) arc_buf_remove_ref(buf, &buf); 1187 } 1188 1189 return (err); 1190 } 1191 1192 /*ARGSUSED*/ 1193 static void 1194 dump_indirect(dnode_t *dn) 1195 { 1196 dnode_phys_t *dnp = dn->dn_phys; 1197 int j; 1198 zbookmark_phys_t czb; 1199 1200 (void) printf("Indirect blocks:\n"); 1201 1202 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 1203 dn->dn_object, dnp->dn_nlevels - 1, 0); 1204 for (j = 0; j < dnp->dn_nblkptr; j++) { 1205 czb.zb_blkid = j; 1206 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 1207 &dnp->dn_blkptr[j], &czb); 1208 } 1209 1210 (void) printf("\n"); 1211 } 1212 1213 /*ARGSUSED*/ 1214 static void 1215 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 1216 { 1217 dsl_dir_phys_t *dd = data; 1218 time_t crtime; 1219 char nice[32]; 1220 1221 if (dd == NULL) 1222 return; 1223 1224 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 1225 1226 crtime = dd->dd_creation_time; 1227 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1228 (void) printf("\t\thead_dataset_obj = %llu\n", 1229 (u_longlong_t)dd->dd_head_dataset_obj); 1230 (void) printf("\t\tparent_dir_obj = %llu\n", 1231 (u_longlong_t)dd->dd_parent_obj); 1232 (void) printf("\t\torigin_obj = %llu\n", 1233 (u_longlong_t)dd->dd_origin_obj); 1234 (void) printf("\t\tchild_dir_zapobj = %llu\n", 1235 (u_longlong_t)dd->dd_child_dir_zapobj); 1236 zdb_nicenum(dd->dd_used_bytes, nice); 1237 (void) printf("\t\tused_bytes = %s\n", nice); 1238 zdb_nicenum(dd->dd_compressed_bytes, nice); 1239 (void) printf("\t\tcompressed_bytes = %s\n", nice); 1240 zdb_nicenum(dd->dd_uncompressed_bytes, nice); 1241 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 1242 zdb_nicenum(dd->dd_quota, nice); 1243 (void) printf("\t\tquota = %s\n", nice); 1244 zdb_nicenum(dd->dd_reserved, nice); 1245 (void) printf("\t\treserved = %s\n", nice); 1246 (void) printf("\t\tprops_zapobj = %llu\n", 1247 (u_longlong_t)dd->dd_props_zapobj); 1248 (void) printf("\t\tdeleg_zapobj = %llu\n", 1249 (u_longlong_t)dd->dd_deleg_zapobj); 1250 (void) printf("\t\tflags = %llx\n", 1251 (u_longlong_t)dd->dd_flags); 1252 1253 #define DO(which) \ 1254 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \ 1255 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 1256 DO(HEAD); 1257 DO(SNAP); 1258 DO(CHILD); 1259 DO(CHILD_RSRV); 1260 DO(REFRSRV); 1261 #undef DO 1262 } 1263 1264 /*ARGSUSED*/ 1265 static void 1266 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 1267 { 1268 dsl_dataset_phys_t *ds = data; 1269 time_t crtime; 1270 char used[32], compressed[32], uncompressed[32], unique[32]; 1271 char blkbuf[BP_SPRINTF_LEN]; 1272 1273 if (ds == NULL) 1274 return; 1275 1276 ASSERT(size == sizeof (*ds)); 1277 crtime = ds->ds_creation_time; 1278 zdb_nicenum(ds->ds_referenced_bytes, used); 1279 zdb_nicenum(ds->ds_compressed_bytes, compressed); 1280 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed); 1281 zdb_nicenum(ds->ds_unique_bytes, unique); 1282 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp); 1283 1284 (void) printf("\t\tdir_obj = %llu\n", 1285 (u_longlong_t)ds->ds_dir_obj); 1286 (void) printf("\t\tprev_snap_obj = %llu\n", 1287 (u_longlong_t)ds->ds_prev_snap_obj); 1288 (void) printf("\t\tprev_snap_txg = %llu\n", 1289 (u_longlong_t)ds->ds_prev_snap_txg); 1290 (void) printf("\t\tnext_snap_obj = %llu\n", 1291 (u_longlong_t)ds->ds_next_snap_obj); 1292 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1293 (u_longlong_t)ds->ds_snapnames_zapobj); 1294 (void) printf("\t\tnum_children = %llu\n", 1295 (u_longlong_t)ds->ds_num_children); 1296 (void) printf("\t\tuserrefs_obj = %llu\n", 1297 (u_longlong_t)ds->ds_userrefs_obj); 1298 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1299 (void) printf("\t\tcreation_txg = %llu\n", 1300 (u_longlong_t)ds->ds_creation_txg); 1301 (void) printf("\t\tdeadlist_obj = %llu\n", 1302 (u_longlong_t)ds->ds_deadlist_obj); 1303 (void) printf("\t\tused_bytes = %s\n", used); 1304 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1305 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1306 (void) printf("\t\tunique = %s\n", unique); 1307 (void) printf("\t\tfsid_guid = %llu\n", 1308 (u_longlong_t)ds->ds_fsid_guid); 1309 (void) printf("\t\tguid = %llu\n", 1310 (u_longlong_t)ds->ds_guid); 1311 (void) printf("\t\tflags = %llx\n", 1312 (u_longlong_t)ds->ds_flags); 1313 (void) printf("\t\tnext_clones_obj = %llu\n", 1314 (u_longlong_t)ds->ds_next_clones_obj); 1315 (void) printf("\t\tprops_obj = %llu\n", 1316 (u_longlong_t)ds->ds_props_obj); 1317 (void) printf("\t\tbp = %s\n", blkbuf); 1318 } 1319 1320 /* ARGSUSED */ 1321 static int 1322 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1323 { 1324 char blkbuf[BP_SPRINTF_LEN]; 1325 1326 if (bp->blk_birth != 0) { 1327 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 1328 (void) printf("\t%s\n", blkbuf); 1329 } 1330 return (0); 1331 } 1332 1333 static void 1334 dump_bptree(objset_t *os, uint64_t obj, char *name) 1335 { 1336 char bytes[32]; 1337 bptree_phys_t *bt; 1338 dmu_buf_t *db; 1339 1340 if (dump_opt['d'] < 3) 1341 return; 1342 1343 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 1344 bt = db->db_data; 1345 zdb_nicenum(bt->bt_bytes, bytes); 1346 (void) printf("\n %s: %llu datasets, %s\n", 1347 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 1348 dmu_buf_rele(db, FTAG); 1349 1350 if (dump_opt['d'] < 5) 1351 return; 1352 1353 (void) printf("\n"); 1354 1355 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 1356 } 1357 1358 /* ARGSUSED */ 1359 static int 1360 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1361 { 1362 char blkbuf[BP_SPRINTF_LEN]; 1363 1364 ASSERT(bp->blk_birth != 0); 1365 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1366 (void) printf("\t%s\n", blkbuf); 1367 return (0); 1368 } 1369 1370 static void 1371 dump_bpobj(bpobj_t *bpo, char *name, int indent) 1372 { 1373 char bytes[32]; 1374 char comp[32]; 1375 char uncomp[32]; 1376 1377 if (dump_opt['d'] < 3) 1378 return; 1379 1380 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes); 1381 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1382 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp); 1383 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp); 1384 (void) printf(" %*s: object %llu, %llu local blkptrs, " 1385 "%llu subobjs, %s (%s/%s comp)\n", 1386 indent * 8, name, 1387 (u_longlong_t)bpo->bpo_object, 1388 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1389 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 1390 bytes, comp, uncomp); 1391 1392 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1393 uint64_t subobj; 1394 bpobj_t subbpo; 1395 int error; 1396 VERIFY0(dmu_read(bpo->bpo_os, 1397 bpo->bpo_phys->bpo_subobjs, 1398 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1399 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1400 if (error != 0) { 1401 (void) printf("ERROR %u while trying to open " 1402 "subobj id %llu\n", 1403 error, (u_longlong_t)subobj); 1404 continue; 1405 } 1406 dump_bpobj(&subbpo, "subobj", indent + 1); 1407 bpobj_close(&subbpo); 1408 } 1409 } else { 1410 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", 1411 indent * 8, name, 1412 (u_longlong_t)bpo->bpo_object, 1413 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1414 bytes); 1415 } 1416 1417 if (dump_opt['d'] < 5) 1418 return; 1419 1420 1421 if (indent == 0) { 1422 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 1423 (void) printf("\n"); 1424 } 1425 } 1426 1427 static void 1428 dump_deadlist(dsl_deadlist_t *dl) 1429 { 1430 dsl_deadlist_entry_t *dle; 1431 uint64_t unused; 1432 char bytes[32]; 1433 char comp[32]; 1434 char uncomp[32]; 1435 1436 if (dump_opt['d'] < 3) 1437 return; 1438 1439 if (dl->dl_oldfmt) { 1440 dump_bpobj(&dl->dl_bpobj, "old-format deadlist", 0); 1441 return; 1442 } 1443 1444 zdb_nicenum(dl->dl_phys->dl_used, bytes); 1445 zdb_nicenum(dl->dl_phys->dl_comp, comp); 1446 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp); 1447 (void) printf("\n Deadlist: %s (%s/%s comp)\n", 1448 bytes, comp, uncomp); 1449 1450 if (dump_opt['d'] < 4) 1451 return; 1452 1453 (void) printf("\n"); 1454 1455 /* force the tree to be loaded */ 1456 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); 1457 1458 for (dle = avl_first(&dl->dl_tree); dle; 1459 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1460 if (dump_opt['d'] >= 5) { 1461 char buf[128]; 1462 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ", 1463 (longlong_t)dle->dle_mintxg, 1464 (longlong_t)dle->dle_bpobj.bpo_object); 1465 1466 dump_bpobj(&dle->dle_bpobj, buf, 0); 1467 } else { 1468 (void) printf("mintxg %llu -> obj %llu\n", 1469 (longlong_t)dle->dle_mintxg, 1470 (longlong_t)dle->dle_bpobj.bpo_object); 1471 1472 } 1473 } 1474 } 1475 1476 static avl_tree_t idx_tree; 1477 static avl_tree_t domain_tree; 1478 static boolean_t fuid_table_loaded; 1479 static boolean_t sa_loaded; 1480 sa_attr_type_t *sa_attr_table; 1481 1482 static void 1483 fuid_table_destroy() 1484 { 1485 if (fuid_table_loaded) { 1486 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 1487 fuid_table_loaded = B_FALSE; 1488 } 1489 } 1490 1491 /* 1492 * print uid or gid information. 1493 * For normal POSIX id just the id is printed in decimal format. 1494 * For CIFS files with FUID the fuid is printed in hex followed by 1495 * the domain-rid string. 1496 */ 1497 static void 1498 print_idstr(uint64_t id, const char *id_type) 1499 { 1500 if (FUID_INDEX(id)) { 1501 char *domain; 1502 1503 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 1504 (void) printf("\t%s %llx [%s-%d]\n", id_type, 1505 (u_longlong_t)id, domain, (int)FUID_RID(id)); 1506 } else { 1507 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 1508 } 1509 1510 } 1511 1512 static void 1513 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 1514 { 1515 uint32_t uid_idx, gid_idx; 1516 1517 uid_idx = FUID_INDEX(uid); 1518 gid_idx = FUID_INDEX(gid); 1519 1520 /* Load domain table, if not already loaded */ 1521 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 1522 uint64_t fuid_obj; 1523 1524 /* first find the fuid object. It lives in the master node */ 1525 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 1526 8, 1, &fuid_obj) == 0); 1527 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 1528 (void) zfs_fuid_table_load(os, fuid_obj, 1529 &idx_tree, &domain_tree); 1530 fuid_table_loaded = B_TRUE; 1531 } 1532 1533 print_idstr(uid, "uid"); 1534 print_idstr(gid, "gid"); 1535 } 1536 1537 /*ARGSUSED*/ 1538 static void 1539 dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 1540 { 1541 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 1542 sa_handle_t *hdl; 1543 uint64_t xattr, rdev, gen; 1544 uint64_t uid, gid, mode, fsize, parent, links; 1545 uint64_t pflags; 1546 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 1547 time_t z_crtime, z_atime, z_mtime, z_ctime; 1548 sa_bulk_attr_t bulk[12]; 1549 int idx = 0; 1550 int error; 1551 1552 if (!sa_loaded) { 1553 uint64_t sa_attrs = 0; 1554 uint64_t version; 1555 1556 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR, 1557 8, 1, &version) == 0); 1558 if (version >= ZPL_VERSION_SA) { 1559 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 1560 8, 1, &sa_attrs) == 0); 1561 } 1562 if ((error = sa_setup(os, sa_attrs, zfs_attr_table, 1563 ZPL_END, &sa_attr_table)) != 0) { 1564 (void) printf("sa_setup failed errno %d, can't " 1565 "display znode contents\n", error); 1566 return; 1567 } 1568 sa_loaded = B_TRUE; 1569 } 1570 1571 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 1572 (void) printf("Failed to get handle for SA znode\n"); 1573 return; 1574 } 1575 1576 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 1577 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 1578 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 1579 &links, 8); 1580 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 1581 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 1582 &mode, 8); 1583 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 1584 NULL, &parent, 8); 1585 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 1586 &fsize, 8); 1587 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 1588 acctm, 16); 1589 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 1590 modtm, 16); 1591 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 1592 crtm, 16); 1593 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 1594 chgtm, 16); 1595 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 1596 &pflags, 8); 1597 1598 if (sa_bulk_lookup(hdl, bulk, idx)) { 1599 (void) sa_handle_destroy(hdl); 1600 return; 1601 } 1602 1603 error = zfs_obj_to_path(os, object, path, sizeof (path)); 1604 if (error != 0) { 1605 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>", 1606 (u_longlong_t)object); 1607 } 1608 if (dump_opt['d'] < 3) { 1609 (void) printf("\t%s\n", path); 1610 (void) sa_handle_destroy(hdl); 1611 return; 1612 } 1613 1614 z_crtime = (time_t)crtm[0]; 1615 z_atime = (time_t)acctm[0]; 1616 z_mtime = (time_t)modtm[0]; 1617 z_ctime = (time_t)chgtm[0]; 1618 1619 (void) printf("\tpath %s\n", path); 1620 dump_uidgid(os, uid, gid); 1621 (void) printf("\tatime %s", ctime(&z_atime)); 1622 (void) printf("\tmtime %s", ctime(&z_mtime)); 1623 (void) printf("\tctime %s", ctime(&z_ctime)); 1624 (void) printf("\tcrtime %s", ctime(&z_crtime)); 1625 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 1626 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 1627 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 1628 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 1629 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 1630 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 1631 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 1632 sizeof (uint64_t)) == 0) 1633 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 1634 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 1635 sizeof (uint64_t)) == 0) 1636 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 1637 sa_handle_destroy(hdl); 1638 } 1639 1640 /*ARGSUSED*/ 1641 static void 1642 dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 1643 { 1644 } 1645 1646 /*ARGSUSED*/ 1647 static void 1648 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 1649 { 1650 } 1651 1652 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 1653 dump_none, /* unallocated */ 1654 dump_zap, /* object directory */ 1655 dump_uint64, /* object array */ 1656 dump_none, /* packed nvlist */ 1657 dump_packed_nvlist, /* packed nvlist size */ 1658 dump_none, /* bplist */ 1659 dump_none, /* bplist header */ 1660 dump_none, /* SPA space map header */ 1661 dump_none, /* SPA space map */ 1662 dump_none, /* ZIL intent log */ 1663 dump_dnode, /* DMU dnode */ 1664 dump_dmu_objset, /* DMU objset */ 1665 dump_dsl_dir, /* DSL directory */ 1666 dump_zap, /* DSL directory child map */ 1667 dump_zap, /* DSL dataset snap map */ 1668 dump_zap, /* DSL props */ 1669 dump_dsl_dataset, /* DSL dataset */ 1670 dump_znode, /* ZFS znode */ 1671 dump_acl, /* ZFS V0 ACL */ 1672 dump_uint8, /* ZFS plain file */ 1673 dump_zpldir, /* ZFS directory */ 1674 dump_zap, /* ZFS master node */ 1675 dump_zap, /* ZFS delete queue */ 1676 dump_uint8, /* zvol object */ 1677 dump_zap, /* zvol prop */ 1678 dump_uint8, /* other uint8[] */ 1679 dump_uint64, /* other uint64[] */ 1680 dump_zap, /* other ZAP */ 1681 dump_zap, /* persistent error log */ 1682 dump_uint8, /* SPA history */ 1683 dump_history_offsets, /* SPA history offsets */ 1684 dump_zap, /* Pool properties */ 1685 dump_zap, /* DSL permissions */ 1686 dump_acl, /* ZFS ACL */ 1687 dump_uint8, /* ZFS SYSACL */ 1688 dump_none, /* FUID nvlist */ 1689 dump_packed_nvlist, /* FUID nvlist size */ 1690 dump_zap, /* DSL dataset next clones */ 1691 dump_zap, /* DSL scrub queue */ 1692 dump_zap, /* ZFS user/group used */ 1693 dump_zap, /* ZFS user/group quota */ 1694 dump_zap, /* snapshot refcount tags */ 1695 dump_ddt_zap, /* DDT ZAP object */ 1696 dump_zap, /* DDT statistics */ 1697 dump_znode, /* SA object */ 1698 dump_zap, /* SA Master Node */ 1699 dump_sa_attrs, /* SA attribute registration */ 1700 dump_sa_layouts, /* SA attribute layouts */ 1701 dump_zap, /* DSL scrub translations */ 1702 dump_none, /* fake dedup BP */ 1703 dump_zap, /* deadlist */ 1704 dump_none, /* deadlist hdr */ 1705 dump_zap, /* dsl clones */ 1706 dump_none, /* bpobj subobjs */ 1707 dump_unknown, /* Unknown type, must be last */ 1708 }; 1709 1710 static void 1711 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1712 { 1713 dmu_buf_t *db = NULL; 1714 dmu_object_info_t doi; 1715 dnode_t *dn; 1716 void *bonus = NULL; 1717 size_t bsize = 0; 1718 char iblk[32], dblk[32], lsize[32], asize[32], fill[32]; 1719 char bonus_size[32]; 1720 char aux[50]; 1721 int error; 1722 1723 if (*print_header) { 1724 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n", 1725 "Object", "lvl", "iblk", "dblk", "dsize", "lsize", 1726 "%full", "type"); 1727 *print_header = 0; 1728 } 1729 1730 if (object == 0) { 1731 dn = DMU_META_DNODE(os); 1732 } else { 1733 error = dmu_bonus_hold(os, object, FTAG, &db); 1734 if (error) 1735 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1736 object, error); 1737 bonus = db->db_data; 1738 bsize = db->db_size; 1739 dn = DB_DNODE((dmu_buf_impl_t *)db); 1740 } 1741 dmu_object_info_from_dnode(dn, &doi); 1742 1743 zdb_nicenum(doi.doi_metadata_block_size, iblk); 1744 zdb_nicenum(doi.doi_data_block_size, dblk); 1745 zdb_nicenum(doi.doi_max_offset, lsize); 1746 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize); 1747 zdb_nicenum(doi.doi_bonus_size, bonus_size); 1748 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 1749 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 1750 doi.doi_max_offset); 1751 1752 aux[0] = '\0'; 1753 1754 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1755 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1756 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 1757 } 1758 1759 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1760 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1761 ZDB_COMPRESS_NAME(doi.doi_compress)); 1762 } 1763 1764 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n", 1765 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 1766 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 1767 1768 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1769 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n", 1770 "", "", "", "", "", bonus_size, "bonus", 1771 ZDB_OT_NAME(doi.doi_bonus_type)); 1772 } 1773 1774 if (verbosity >= 4) { 1775 (void) printf("\tdnode flags: %s%s%s\n", 1776 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 1777 "USED_BYTES " : "", 1778 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 1779 "USERUSED_ACCOUNTED " : "", 1780 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 1781 "SPILL_BLKPTR" : ""); 1782 (void) printf("\tdnode maxblkid: %llu\n", 1783 (longlong_t)dn->dn_phys->dn_maxblkid); 1784 1785 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, 1786 bonus, bsize); 1787 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); 1788 *print_header = 1; 1789 } 1790 1791 if (verbosity >= 5) 1792 dump_indirect(dn); 1793 1794 if (verbosity >= 5) { 1795 /* 1796 * Report the list of segments that comprise the object. 1797 */ 1798 uint64_t start = 0; 1799 uint64_t end; 1800 uint64_t blkfill = 1; 1801 int minlvl = 1; 1802 1803 if (dn->dn_type == DMU_OT_DNODE) { 1804 minlvl = 0; 1805 blkfill = DNODES_PER_BLOCK; 1806 } 1807 1808 for (;;) { 1809 char segsize[32]; 1810 error = dnode_next_offset(dn, 1811 0, &start, minlvl, blkfill, 0); 1812 if (error) 1813 break; 1814 end = start; 1815 error = dnode_next_offset(dn, 1816 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 1817 zdb_nicenum(end - start, segsize); 1818 (void) printf("\t\tsegment [%016llx, %016llx)" 1819 " size %5s\n", (u_longlong_t)start, 1820 (u_longlong_t)end, segsize); 1821 if (error) 1822 break; 1823 start = end; 1824 } 1825 } 1826 1827 if (db != NULL) 1828 dmu_buf_rele(db, FTAG); 1829 } 1830 1831 static char *objset_types[DMU_OST_NUMTYPES] = { 1832 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1833 1834 static void 1835 dump_dir(objset_t *os) 1836 { 1837 dmu_objset_stats_t dds; 1838 uint64_t object, object_count; 1839 uint64_t refdbytes, usedobjs, scratch; 1840 char numbuf[32]; 1841 char blkbuf[BP_SPRINTF_LEN + 20]; 1842 char osname[MAXNAMELEN]; 1843 char *type = "UNKNOWN"; 1844 int verbosity = dump_opt['d']; 1845 int print_header = 1; 1846 int i, error; 1847 1848 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 1849 dmu_objset_fast_stat(os, &dds); 1850 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 1851 1852 if (dds.dds_type < DMU_OST_NUMTYPES) 1853 type = objset_types[dds.dds_type]; 1854 1855 if (dds.dds_type == DMU_OST_META) { 1856 dds.dds_creation_txg = TXG_INITIAL; 1857 usedobjs = BP_GET_FILL(os->os_rootbp); 1858 refdbytes = os->os_spa->spa_dsl_pool-> 1859 dp_mos_dir->dd_phys->dd_used_bytes; 1860 } else { 1861 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 1862 } 1863 1864 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp)); 1865 1866 zdb_nicenum(refdbytes, numbuf); 1867 1868 if (verbosity >= 4) { 1869 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp "); 1870 (void) snprintf_blkptr(blkbuf + strlen(blkbuf), 1871 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp); 1872 } else { 1873 blkbuf[0] = '\0'; 1874 } 1875 1876 dmu_objset_name(os, osname); 1877 1878 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 1879 "%s, %llu objects%s\n", 1880 osname, type, (u_longlong_t)dmu_objset_id(os), 1881 (u_longlong_t)dds.dds_creation_txg, 1882 numbuf, (u_longlong_t)usedobjs, blkbuf); 1883 1884 if (zopt_objects != 0) { 1885 for (i = 0; i < zopt_objects; i++) 1886 dump_object(os, zopt_object[i], verbosity, 1887 &print_header); 1888 (void) printf("\n"); 1889 return; 1890 } 1891 1892 if (dump_opt['i'] != 0 || verbosity >= 2) 1893 dump_intent_log(dmu_objset_zil(os)); 1894 1895 if (dmu_objset_ds(os) != NULL) 1896 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist); 1897 1898 if (verbosity < 2) 1899 return; 1900 1901 if (BP_IS_HOLE(os->os_rootbp)) 1902 return; 1903 1904 dump_object(os, 0, verbosity, &print_header); 1905 object_count = 0; 1906 if (DMU_USERUSED_DNODE(os) != NULL && 1907 DMU_USERUSED_DNODE(os)->dn_type != 0) { 1908 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 1909 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 1910 } 1911 1912 object = 0; 1913 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 1914 dump_object(os, object, verbosity, &print_header); 1915 object_count++; 1916 } 1917 1918 ASSERT3U(object_count, ==, usedobjs); 1919 1920 (void) printf("\n"); 1921 1922 if (error != ESRCH) { 1923 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 1924 abort(); 1925 } 1926 } 1927 1928 static void 1929 dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 1930 { 1931 time_t timestamp = ub->ub_timestamp; 1932 1933 (void) printf(header ? header : ""); 1934 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 1935 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 1936 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 1937 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 1938 (void) printf("\ttimestamp = %llu UTC = %s", 1939 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 1940 if (dump_opt['u'] >= 3) { 1941 char blkbuf[BP_SPRINTF_LEN]; 1942 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp); 1943 (void) printf("\trootbp = %s\n", blkbuf); 1944 } 1945 (void) printf(footer ? footer : ""); 1946 } 1947 1948 static void 1949 dump_config(spa_t *spa) 1950 { 1951 dmu_buf_t *db; 1952 size_t nvsize = 0; 1953 int error = 0; 1954 1955 1956 error = dmu_bonus_hold(spa->spa_meta_objset, 1957 spa->spa_config_object, FTAG, &db); 1958 1959 if (error == 0) { 1960 nvsize = *(uint64_t *)db->db_data; 1961 dmu_buf_rele(db, FTAG); 1962 1963 (void) printf("\nMOS Configuration:\n"); 1964 dump_packed_nvlist(spa->spa_meta_objset, 1965 spa->spa_config_object, (void *)&nvsize, 1); 1966 } else { 1967 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 1968 (u_longlong_t)spa->spa_config_object, error); 1969 } 1970 } 1971 1972 static void 1973 dump_cachefile(const char *cachefile) 1974 { 1975 int fd; 1976 struct stat64 statbuf; 1977 char *buf; 1978 nvlist_t *config; 1979 1980 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 1981 (void) printf("cannot open '%s': %s\n", cachefile, 1982 strerror(errno)); 1983 exit(1); 1984 } 1985 1986 if (fstat64(fd, &statbuf) != 0) { 1987 (void) printf("failed to stat '%s': %s\n", cachefile, 1988 strerror(errno)); 1989 exit(1); 1990 } 1991 1992 if ((buf = malloc(statbuf.st_size)) == NULL) { 1993 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 1994 (u_longlong_t)statbuf.st_size); 1995 exit(1); 1996 } 1997 1998 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 1999 (void) fprintf(stderr, "failed to read %llu bytes\n", 2000 (u_longlong_t)statbuf.st_size); 2001 exit(1); 2002 } 2003 2004 (void) close(fd); 2005 2006 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 2007 (void) fprintf(stderr, "failed to unpack nvlist\n"); 2008 exit(1); 2009 } 2010 2011 free(buf); 2012 2013 dump_nvlist(config, 0); 2014 2015 nvlist_free(config); 2016 } 2017 2018 #define ZDB_MAX_UB_HEADER_SIZE 32 2019 2020 static void 2021 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) 2022 { 2023 vdev_t vd; 2024 vdev_t *vdp = &vd; 2025 char header[ZDB_MAX_UB_HEADER_SIZE]; 2026 2027 vd.vdev_ashift = ashift; 2028 vdp->vdev_top = vdp; 2029 2030 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { 2031 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); 2032 uberblock_t *ub = (void *)((char *)lbl + uoff); 2033 2034 if (uberblock_verify(ub)) 2035 continue; 2036 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 2037 "Uberblock[%d]\n", i); 2038 dump_uberblock(ub, header, ""); 2039 } 2040 } 2041 2042 static void 2043 dump_label(const char *dev) 2044 { 2045 int fd; 2046 vdev_label_t label; 2047 char *path, *buf = label.vl_vdev_phys.vp_nvlist; 2048 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 2049 struct stat64 statbuf; 2050 uint64_t psize, ashift; 2051 int len = strlen(dev) + 1; 2052 2053 if (strncmp(dev, "/dev/dsk/", 9) == 0) { 2054 len++; 2055 path = malloc(len); 2056 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9); 2057 } else { 2058 path = strdup(dev); 2059 } 2060 2061 if ((fd = open64(path, O_RDONLY)) < 0) { 2062 (void) printf("cannot open '%s': %s\n", path, strerror(errno)); 2063 free(path); 2064 exit(1); 2065 } 2066 2067 if (fstat64(fd, &statbuf) != 0) { 2068 (void) printf("failed to stat '%s': %s\n", path, 2069 strerror(errno)); 2070 free(path); 2071 (void) close(fd); 2072 exit(1); 2073 } 2074 2075 if (S_ISBLK(statbuf.st_mode)) { 2076 (void) printf("cannot use '%s': character device required\n", 2077 path); 2078 free(path); 2079 (void) close(fd); 2080 exit(1); 2081 } 2082 2083 psize = statbuf.st_size; 2084 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 2085 2086 for (int l = 0; l < VDEV_LABELS; l++) { 2087 nvlist_t *config = NULL; 2088 2089 (void) printf("--------------------------------------------\n"); 2090 (void) printf("LABEL %d\n", l); 2091 (void) printf("--------------------------------------------\n"); 2092 2093 if (pread64(fd, &label, sizeof (label), 2094 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 2095 (void) printf("failed to read label %d\n", l); 2096 continue; 2097 } 2098 2099 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 2100 (void) printf("failed to unpack label %d\n", l); 2101 ashift = SPA_MINBLOCKSHIFT; 2102 } else { 2103 nvlist_t *vdev_tree = NULL; 2104 2105 dump_nvlist(config, 4); 2106 if ((nvlist_lookup_nvlist(config, 2107 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 2108 (nvlist_lookup_uint64(vdev_tree, 2109 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 2110 ashift = SPA_MINBLOCKSHIFT; 2111 nvlist_free(config); 2112 } 2113 if (dump_opt['u']) 2114 dump_label_uberblocks(&label, ashift); 2115 } 2116 2117 free(path); 2118 (void) close(fd); 2119 } 2120 2121 /*ARGSUSED*/ 2122 static int 2123 dump_one_dir(const char *dsname, void *arg) 2124 { 2125 int error; 2126 objset_t *os; 2127 2128 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os); 2129 if (error) { 2130 (void) printf("Could not open %s, error %d\n", dsname, error); 2131 return (0); 2132 } 2133 dump_dir(os); 2134 dmu_objset_disown(os, FTAG); 2135 fuid_table_destroy(); 2136 sa_loaded = B_FALSE; 2137 return (0); 2138 } 2139 2140 /* 2141 * Block statistics. 2142 */ 2143 #define PSIZE_HISTO_SIZE (SPA_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1) 2144 typedef struct zdb_blkstats { 2145 uint64_t zb_asize; 2146 uint64_t zb_lsize; 2147 uint64_t zb_psize; 2148 uint64_t zb_count; 2149 uint64_t zb_gangs; 2150 uint64_t zb_ditto_samevdev; 2151 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 2152 } zdb_blkstats_t; 2153 2154 /* 2155 * Extended object types to report deferred frees and dedup auto-ditto blocks. 2156 */ 2157 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 2158 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 2159 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 2160 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 2161 2162 static char *zdb_ot_extname[] = { 2163 "deferred free", 2164 "dedup ditto", 2165 "other", 2166 "Total", 2167 }; 2168 2169 #define ZB_TOTAL DN_MAX_LEVELS 2170 2171 typedef struct zdb_cb { 2172 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 2173 uint64_t zcb_dedup_asize; 2174 uint64_t zcb_dedup_blocks; 2175 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES]; 2176 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES] 2177 [BPE_PAYLOAD_SIZE]; 2178 uint64_t zcb_start; 2179 uint64_t zcb_lastprint; 2180 uint64_t zcb_totalasize; 2181 uint64_t zcb_errors[256]; 2182 int zcb_readfails; 2183 int zcb_haderrors; 2184 spa_t *zcb_spa; 2185 } zdb_cb_t; 2186 2187 static void 2188 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 2189 dmu_object_type_t type) 2190 { 2191 uint64_t refcnt = 0; 2192 2193 ASSERT(type < ZDB_OT_TOTAL); 2194 2195 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 2196 return; 2197 2198 for (int i = 0; i < 4; i++) { 2199 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 2200 int t = (i & 1) ? type : ZDB_OT_TOTAL; 2201 int equal; 2202 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 2203 2204 zb->zb_asize += BP_GET_ASIZE(bp); 2205 zb->zb_lsize += BP_GET_LSIZE(bp); 2206 zb->zb_psize += BP_GET_PSIZE(bp); 2207 zb->zb_count++; 2208 zb->zb_psize_histogram[BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT]++; 2209 2210 zb->zb_gangs += BP_COUNT_GANG(bp); 2211 2212 switch (BP_GET_NDVAS(bp)) { 2213 case 2: 2214 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 2215 DVA_GET_VDEV(&bp->blk_dva[1])) 2216 zb->zb_ditto_samevdev++; 2217 break; 2218 case 3: 2219 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == 2220 DVA_GET_VDEV(&bp->blk_dva[1])) + 2221 (DVA_GET_VDEV(&bp->blk_dva[0]) == 2222 DVA_GET_VDEV(&bp->blk_dva[2])) + 2223 (DVA_GET_VDEV(&bp->blk_dva[1]) == 2224 DVA_GET_VDEV(&bp->blk_dva[2])); 2225 if (equal != 0) 2226 zb->zb_ditto_samevdev++; 2227 break; 2228 } 2229 2230 } 2231 2232 if (BP_IS_EMBEDDED(bp)) { 2233 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++; 2234 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)] 2235 [BPE_GET_PSIZE(bp)]++; 2236 return; 2237 } 2238 2239 if (dump_opt['L']) 2240 return; 2241 2242 if (BP_GET_DEDUP(bp)) { 2243 ddt_t *ddt; 2244 ddt_entry_t *dde; 2245 2246 ddt = ddt_select(zcb->zcb_spa, bp); 2247 ddt_enter(ddt); 2248 dde = ddt_lookup(ddt, bp, B_FALSE); 2249 2250 if (dde == NULL) { 2251 refcnt = 0; 2252 } else { 2253 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 2254 ddt_phys_decref(ddp); 2255 refcnt = ddp->ddp_refcnt; 2256 if (ddt_phys_total_refcnt(dde) == 0) 2257 ddt_remove(ddt, dde); 2258 } 2259 ddt_exit(ddt); 2260 } 2261 2262 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 2263 refcnt ? 0 : spa_first_txg(zcb->zcb_spa), 2264 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 2265 } 2266 2267 static void 2268 zdb_blkptr_done(zio_t *zio) 2269 { 2270 spa_t *spa = zio->io_spa; 2271 blkptr_t *bp = zio->io_bp; 2272 int ioerr = zio->io_error; 2273 zdb_cb_t *zcb = zio->io_private; 2274 zbookmark_phys_t *zb = &zio->io_bookmark; 2275 2276 zio_data_buf_free(zio->io_data, zio->io_size); 2277 2278 mutex_enter(&spa->spa_scrub_lock); 2279 spa->spa_scrub_inflight--; 2280 cv_broadcast(&spa->spa_scrub_io_cv); 2281 2282 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 2283 char blkbuf[BP_SPRINTF_LEN]; 2284 2285 zcb->zcb_haderrors = 1; 2286 zcb->zcb_errors[ioerr]++; 2287 2288 if (dump_opt['b'] >= 2) 2289 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2290 else 2291 blkbuf[0] = '\0'; 2292 2293 (void) printf("zdb_blkptr_cb: " 2294 "Got error %d reading " 2295 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 2296 ioerr, 2297 (u_longlong_t)zb->zb_objset, 2298 (u_longlong_t)zb->zb_object, 2299 (u_longlong_t)zb->zb_level, 2300 (u_longlong_t)zb->zb_blkid, 2301 blkbuf); 2302 } 2303 mutex_exit(&spa->spa_scrub_lock); 2304 } 2305 2306 static int 2307 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2308 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 2309 { 2310 zdb_cb_t *zcb = arg; 2311 dmu_object_type_t type; 2312 boolean_t is_metadata; 2313 2314 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) { 2315 char blkbuf[BP_SPRINTF_LEN]; 2316 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2317 (void) printf("objset %llu object %llu " 2318 "level %lld offset 0x%llx %s\n", 2319 (u_longlong_t)zb->zb_objset, 2320 (u_longlong_t)zb->zb_object, 2321 (longlong_t)zb->zb_level, 2322 (u_longlong_t)blkid2offset(dnp, bp, zb), 2323 blkbuf); 2324 } 2325 2326 if (BP_IS_HOLE(bp)) 2327 return (0); 2328 2329 type = BP_GET_TYPE(bp); 2330 2331 zdb_count_block(zcb, zilog, bp, 2332 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 2333 2334 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 2335 2336 if (!BP_IS_EMBEDDED(bp) && 2337 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) { 2338 size_t size = BP_GET_PSIZE(bp); 2339 void *data = zio_data_buf_alloc(size); 2340 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 2341 2342 /* If it's an intent log block, failure is expected. */ 2343 if (zb->zb_level == ZB_ZIL_LEVEL) 2344 flags |= ZIO_FLAG_SPECULATIVE; 2345 2346 mutex_enter(&spa->spa_scrub_lock); 2347 while (spa->spa_scrub_inflight > max_inflight) 2348 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 2349 spa->spa_scrub_inflight++; 2350 mutex_exit(&spa->spa_scrub_lock); 2351 2352 zio_nowait(zio_read(NULL, spa, bp, data, size, 2353 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 2354 } 2355 2356 zcb->zcb_readfails = 0; 2357 2358 if (dump_opt['b'] < 5 && 2359 gethrtime() > zcb->zcb_lastprint + NANOSEC) { 2360 uint64_t now = gethrtime(); 2361 char buf[10]; 2362 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 2363 int kb_per_sec = 2364 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 2365 int sec_remaining = 2366 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 2367 2368 zfs_nicenum(bytes, buf, sizeof (buf)); 2369 (void) fprintf(stderr, 2370 "\r%5s completed (%4dMB/s) " 2371 "estimated time remaining: %uhr %02umin %02usec ", 2372 buf, kb_per_sec / 1024, 2373 sec_remaining / 60 / 60, 2374 sec_remaining / 60 % 60, 2375 sec_remaining % 60); 2376 2377 zcb->zcb_lastprint = now; 2378 } 2379 2380 return (0); 2381 } 2382 2383 static void 2384 zdb_leak(void *arg, uint64_t start, uint64_t size) 2385 { 2386 vdev_t *vd = arg; 2387 2388 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 2389 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 2390 } 2391 2392 static metaslab_ops_t zdb_metaslab_ops = { 2393 NULL /* alloc */ 2394 }; 2395 2396 static void 2397 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 2398 { 2399 ddt_bookmark_t ddb = { 0 }; 2400 ddt_entry_t dde; 2401 int error; 2402 2403 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 2404 blkptr_t blk; 2405 ddt_phys_t *ddp = dde.dde_phys; 2406 2407 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 2408 return; 2409 2410 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 2411 2412 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 2413 if (ddp->ddp_phys_birth == 0) 2414 continue; 2415 ddt_bp_create(ddb.ddb_checksum, 2416 &dde.dde_key, ddp, &blk); 2417 if (p == DDT_PHYS_DITTO) { 2418 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 2419 } else { 2420 zcb->zcb_dedup_asize += 2421 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 2422 zcb->zcb_dedup_blocks++; 2423 } 2424 } 2425 if (!dump_opt['L']) { 2426 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 2427 ddt_enter(ddt); 2428 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 2429 ddt_exit(ddt); 2430 } 2431 } 2432 2433 ASSERT(error == ENOENT); 2434 } 2435 2436 static void 2437 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 2438 { 2439 zcb->zcb_spa = spa; 2440 2441 if (!dump_opt['L']) { 2442 vdev_t *rvd = spa->spa_root_vdev; 2443 for (uint64_t c = 0; c < rvd->vdev_children; c++) { 2444 vdev_t *vd = rvd->vdev_child[c]; 2445 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 2446 metaslab_t *msp = vd->vdev_ms[m]; 2447 mutex_enter(&msp->ms_lock); 2448 metaslab_unload(msp); 2449 2450 /* 2451 * For leak detection, we overload the metaslab 2452 * ms_tree to contain allocated segments 2453 * instead of free segments. As a result, 2454 * we can't use the normal metaslab_load/unload 2455 * interfaces. 2456 */ 2457 if (msp->ms_sm != NULL) { 2458 (void) fprintf(stderr, 2459 "\rloading space map for " 2460 "vdev %llu of %llu, " 2461 "metaslab %llu of %llu ...", 2462 (longlong_t)c, 2463 (longlong_t)rvd->vdev_children, 2464 (longlong_t)m, 2465 (longlong_t)vd->vdev_ms_count); 2466 2467 msp->ms_ops = &zdb_metaslab_ops; 2468 VERIFY0(space_map_load(msp->ms_sm, 2469 msp->ms_tree, SM_ALLOC)); 2470 msp->ms_loaded = B_TRUE; 2471 } 2472 mutex_exit(&msp->ms_lock); 2473 } 2474 } 2475 (void) fprintf(stderr, "\n"); 2476 } 2477 2478 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2479 2480 zdb_ddt_leak_init(spa, zcb); 2481 2482 spa_config_exit(spa, SCL_CONFIG, FTAG); 2483 } 2484 2485 static void 2486 zdb_leak_fini(spa_t *spa) 2487 { 2488 if (!dump_opt['L']) { 2489 vdev_t *rvd = spa->spa_root_vdev; 2490 for (int c = 0; c < rvd->vdev_children; c++) { 2491 vdev_t *vd = rvd->vdev_child[c]; 2492 for (int m = 0; m < vd->vdev_ms_count; m++) { 2493 metaslab_t *msp = vd->vdev_ms[m]; 2494 mutex_enter(&msp->ms_lock); 2495 2496 /* 2497 * The ms_tree has been overloaded to 2498 * contain allocated segments. Now that we 2499 * finished traversing all blocks, any 2500 * block that remains in the ms_tree 2501 * represents an allocated block that we 2502 * did not claim during the traversal. 2503 * Claimed blocks would have been removed 2504 * from the ms_tree. 2505 */ 2506 range_tree_vacate(msp->ms_tree, zdb_leak, vd); 2507 msp->ms_loaded = B_FALSE; 2508 2509 mutex_exit(&msp->ms_lock); 2510 } 2511 } 2512 } 2513 } 2514 2515 /* ARGSUSED */ 2516 static int 2517 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 2518 { 2519 zdb_cb_t *zcb = arg; 2520 2521 if (dump_opt['b'] >= 5) { 2522 char blkbuf[BP_SPRINTF_LEN]; 2523 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2524 (void) printf("[%s] %s\n", 2525 "deferred free", blkbuf); 2526 } 2527 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 2528 return (0); 2529 } 2530 2531 static int 2532 dump_block_stats(spa_t *spa) 2533 { 2534 zdb_cb_t zcb = { 0 }; 2535 zdb_blkstats_t *zb, *tzb; 2536 uint64_t norm_alloc, norm_space, total_alloc, total_found; 2537 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; 2538 boolean_t leaks = B_FALSE; 2539 2540 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 2541 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 2542 (dump_opt['c'] == 1) ? "metadata " : "", 2543 dump_opt['c'] ? "checksums " : "", 2544 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 2545 !dump_opt['L'] ? "nothing leaked " : ""); 2546 2547 /* 2548 * Load all space maps as SM_ALLOC maps, then traverse the pool 2549 * claiming each block we discover. If the pool is perfectly 2550 * consistent, the space maps will be empty when we're done. 2551 * Anything left over is a leak; any block we can't claim (because 2552 * it's not part of any space map) is a double allocation, 2553 * reference to a freed block, or an unclaimed log block. 2554 */ 2555 zdb_leak_init(spa, &zcb); 2556 2557 /* 2558 * If there's a deferred-free bplist, process that first. 2559 */ 2560 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 2561 count_block_cb, &zcb, NULL); 2562 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2563 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 2564 count_block_cb, &zcb, NULL); 2565 } 2566 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 2567 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 2568 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 2569 &zcb, NULL)); 2570 } 2571 2572 if (dump_opt['c'] > 1) 2573 flags |= TRAVERSE_PREFETCH_DATA; 2574 2575 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 2576 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 2577 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 2578 2579 /* 2580 * If we've traversed the data blocks then we need to wait for those 2581 * I/Os to complete. We leverage "The Godfather" zio to wait on 2582 * all async I/Os to complete. 2583 */ 2584 if (dump_opt['c']) { 2585 for (int i = 0; i < max_ncpus; i++) { 2586 (void) zio_wait(spa->spa_async_zio_root[i]); 2587 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL, 2588 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 2589 ZIO_FLAG_GODFATHER); 2590 } 2591 } 2592 2593 if (zcb.zcb_haderrors) { 2594 (void) printf("\nError counts:\n\n"); 2595 (void) printf("\t%5s %s\n", "errno", "count"); 2596 for (int e = 0; e < 256; e++) { 2597 if (zcb.zcb_errors[e] != 0) { 2598 (void) printf("\t%5d %llu\n", 2599 e, (u_longlong_t)zcb.zcb_errors[e]); 2600 } 2601 } 2602 } 2603 2604 /* 2605 * Report any leaked segments. 2606 */ 2607 zdb_leak_fini(spa); 2608 2609 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 2610 2611 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 2612 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 2613 2614 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); 2615 total_found = tzb->zb_asize - zcb.zcb_dedup_asize; 2616 2617 if (total_found == total_alloc) { 2618 if (!dump_opt['L']) 2619 (void) printf("\n\tNo leaks (block sum matches space" 2620 " maps exactly)\n"); 2621 } else { 2622 (void) printf("block traversal size %llu != alloc %llu " 2623 "(%s %lld)\n", 2624 (u_longlong_t)total_found, 2625 (u_longlong_t)total_alloc, 2626 (dump_opt['L']) ? "unreachable" : "leaked", 2627 (longlong_t)(total_alloc - total_found)); 2628 leaks = B_TRUE; 2629 } 2630 2631 if (tzb->zb_count == 0) 2632 return (2); 2633 2634 (void) printf("\n"); 2635 (void) printf("\tbp count: %10llu\n", 2636 (u_longlong_t)tzb->zb_count); 2637 (void) printf("\tganged count: %10llu\n", 2638 (longlong_t)tzb->zb_gangs); 2639 (void) printf("\tbp logical: %10llu avg: %6llu\n", 2640 (u_longlong_t)tzb->zb_lsize, 2641 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 2642 (void) printf("\tbp physical: %10llu avg:" 2643 " %6llu compression: %6.2f\n", 2644 (u_longlong_t)tzb->zb_psize, 2645 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 2646 (double)tzb->zb_lsize / tzb->zb_psize); 2647 (void) printf("\tbp allocated: %10llu avg:" 2648 " %6llu compression: %6.2f\n", 2649 (u_longlong_t)tzb->zb_asize, 2650 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 2651 (double)tzb->zb_lsize / tzb->zb_asize); 2652 (void) printf("\tbp deduped: %10llu ref>1:" 2653 " %6llu deduplication: %6.2f\n", 2654 (u_longlong_t)zcb.zcb_dedup_asize, 2655 (u_longlong_t)zcb.zcb_dedup_blocks, 2656 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 2657 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", 2658 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 2659 2660 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) { 2661 if (zcb.zcb_embedded_blocks[i] == 0) 2662 continue; 2663 (void) printf("\n"); 2664 (void) printf("\tadditional, non-pointer bps of type %u: " 2665 "%10llu\n", 2666 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]); 2667 2668 if (dump_opt['b'] >= 3) { 2669 (void) printf("\t number of (compressed) bytes: " 2670 "number of bps\n"); 2671 dump_histogram(zcb.zcb_embedded_histogram[i], 2672 sizeof (zcb.zcb_embedded_histogram[i]) / 2673 sizeof (zcb.zcb_embedded_histogram[i][0]), 0); 2674 } 2675 } 2676 2677 if (tzb->zb_ditto_samevdev != 0) { 2678 (void) printf("\tDittoed blocks on same vdev: %llu\n", 2679 (longlong_t)tzb->zb_ditto_samevdev); 2680 } 2681 2682 if (dump_opt['b'] >= 2) { 2683 int l, t, level; 2684 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 2685 "\t avg\t comp\t%%Total\tType\n"); 2686 2687 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 2688 char csize[32], lsize[32], psize[32], asize[32]; 2689 char avg[32], gang[32]; 2690 char *typename; 2691 2692 if (t < DMU_OT_NUMTYPES) 2693 typename = dmu_ot[t].ot_name; 2694 else 2695 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 2696 2697 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 2698 (void) printf("%6s\t%5s\t%5s\t%5s" 2699 "\t%5s\t%5s\t%6s\t%s\n", 2700 "-", 2701 "-", 2702 "-", 2703 "-", 2704 "-", 2705 "-", 2706 "-", 2707 typename); 2708 continue; 2709 } 2710 2711 for (l = ZB_TOTAL - 1; l >= -1; l--) { 2712 level = (l == -1 ? ZB_TOTAL : l); 2713 zb = &zcb.zcb_type[level][t]; 2714 2715 if (zb->zb_asize == 0) 2716 continue; 2717 2718 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 2719 continue; 2720 2721 if (level == 0 && zb->zb_asize == 2722 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 2723 continue; 2724 2725 zdb_nicenum(zb->zb_count, csize); 2726 zdb_nicenum(zb->zb_lsize, lsize); 2727 zdb_nicenum(zb->zb_psize, psize); 2728 zdb_nicenum(zb->zb_asize, asize); 2729 zdb_nicenum(zb->zb_asize / zb->zb_count, avg); 2730 zdb_nicenum(zb->zb_gangs, gang); 2731 2732 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 2733 "\t%5.2f\t%6.2f\t", 2734 csize, lsize, psize, asize, avg, 2735 (double)zb->zb_lsize / zb->zb_psize, 2736 100.0 * zb->zb_asize / tzb->zb_asize); 2737 2738 if (level == ZB_TOTAL) 2739 (void) printf("%s\n", typename); 2740 else 2741 (void) printf(" L%d %s\n", 2742 level, typename); 2743 2744 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { 2745 (void) printf("\t number of ganged " 2746 "blocks: %s\n", gang); 2747 } 2748 2749 if (dump_opt['b'] >= 4) { 2750 (void) printf("psize " 2751 "(in 512-byte sectors): " 2752 "number of blocks\n"); 2753 dump_histogram(zb->zb_psize_histogram, 2754 PSIZE_HISTO_SIZE, 0); 2755 } 2756 } 2757 } 2758 } 2759 2760 (void) printf("\n"); 2761 2762 if (leaks) 2763 return (2); 2764 2765 if (zcb.zcb_haderrors) 2766 return (3); 2767 2768 return (0); 2769 } 2770 2771 typedef struct zdb_ddt_entry { 2772 ddt_key_t zdde_key; 2773 uint64_t zdde_ref_blocks; 2774 uint64_t zdde_ref_lsize; 2775 uint64_t zdde_ref_psize; 2776 uint64_t zdde_ref_dsize; 2777 avl_node_t zdde_node; 2778 } zdb_ddt_entry_t; 2779 2780 /* ARGSUSED */ 2781 static int 2782 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2783 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 2784 { 2785 avl_tree_t *t = arg; 2786 avl_index_t where; 2787 zdb_ddt_entry_t *zdde, zdde_search; 2788 2789 if (BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp)) 2790 return (0); 2791 2792 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 2793 (void) printf("traversing objset %llu, %llu objects, " 2794 "%lu blocks so far\n", 2795 (u_longlong_t)zb->zb_objset, 2796 (u_longlong_t)BP_GET_FILL(bp), 2797 avl_numnodes(t)); 2798 } 2799 2800 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 2801 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 2802 return (0); 2803 2804 ddt_key_fill(&zdde_search.zdde_key, bp); 2805 2806 zdde = avl_find(t, &zdde_search, &where); 2807 2808 if (zdde == NULL) { 2809 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 2810 zdde->zdde_key = zdde_search.zdde_key; 2811 avl_insert(t, zdde, where); 2812 } 2813 2814 zdde->zdde_ref_blocks += 1; 2815 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 2816 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 2817 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 2818 2819 return (0); 2820 } 2821 2822 static void 2823 dump_simulated_ddt(spa_t *spa) 2824 { 2825 avl_tree_t t; 2826 void *cookie = NULL; 2827 zdb_ddt_entry_t *zdde; 2828 ddt_histogram_t ddh_total = { 0 }; 2829 ddt_stat_t dds_total = { 0 }; 2830 2831 avl_create(&t, ddt_entry_compare, 2832 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 2833 2834 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2835 2836 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, 2837 zdb_ddt_add_cb, &t); 2838 2839 spa_config_exit(spa, SCL_CONFIG, FTAG); 2840 2841 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 2842 ddt_stat_t dds; 2843 uint64_t refcnt = zdde->zdde_ref_blocks; 2844 ASSERT(refcnt != 0); 2845 2846 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 2847 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 2848 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 2849 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 2850 2851 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 2852 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 2853 dds.dds_ref_psize = zdde->zdde_ref_psize; 2854 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 2855 2856 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1], 2857 &dds, 0); 2858 2859 umem_free(zdde, sizeof (*zdde)); 2860 } 2861 2862 avl_destroy(&t); 2863 2864 ddt_histogram_stat(&dds_total, &ddh_total); 2865 2866 (void) printf("Simulated DDT histogram:\n"); 2867 2868 zpool_dump_ddt(&dds_total, &ddh_total); 2869 2870 dump_dedup_ratio(&dds_total); 2871 } 2872 2873 static void 2874 dump_zpool(spa_t *spa) 2875 { 2876 dsl_pool_t *dp = spa_get_dsl(spa); 2877 int rc = 0; 2878 2879 if (dump_opt['S']) { 2880 dump_simulated_ddt(spa); 2881 return; 2882 } 2883 2884 if (!dump_opt['e'] && dump_opt['C'] > 1) { 2885 (void) printf("\nCached configuration:\n"); 2886 dump_nvlist(spa->spa_config, 8); 2887 } 2888 2889 if (dump_opt['C']) 2890 dump_config(spa); 2891 2892 if (dump_opt['u']) 2893 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 2894 2895 if (dump_opt['D']) 2896 dump_all_ddts(spa); 2897 2898 if (dump_opt['d'] > 2 || dump_opt['m']) 2899 dump_metaslabs(spa); 2900 if (dump_opt['M']) 2901 dump_metaslab_groups(spa); 2902 2903 if (dump_opt['d'] || dump_opt['i']) { 2904 dump_dir(dp->dp_meta_objset); 2905 if (dump_opt['d'] >= 3) { 2906 dump_bpobj(&spa->spa_deferred_bpobj, 2907 "Deferred frees", 0); 2908 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2909 dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj, 2910 "Pool snapshot frees", 0); 2911 } 2912 2913 if (spa_feature_is_active(spa, 2914 SPA_FEATURE_ASYNC_DESTROY)) { 2915 dump_bptree(spa->spa_meta_objset, 2916 spa->spa_dsl_pool->dp_bptree_obj, 2917 "Pool dataset frees"); 2918 } 2919 dump_dtl(spa->spa_root_vdev, 0); 2920 } 2921 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 2922 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 2923 } 2924 if (dump_opt['b'] || dump_opt['c']) 2925 rc = dump_block_stats(spa); 2926 2927 if (rc == 0) 2928 rc = verify_spacemap_refcounts(spa); 2929 2930 if (dump_opt['s']) 2931 show_pool_stats(spa); 2932 2933 if (dump_opt['h']) 2934 dump_history(spa); 2935 2936 if (rc != 0) 2937 exit(rc); 2938 } 2939 2940 #define ZDB_FLAG_CHECKSUM 0x0001 2941 #define ZDB_FLAG_DECOMPRESS 0x0002 2942 #define ZDB_FLAG_BSWAP 0x0004 2943 #define ZDB_FLAG_GBH 0x0008 2944 #define ZDB_FLAG_INDIRECT 0x0010 2945 #define ZDB_FLAG_PHYS 0x0020 2946 #define ZDB_FLAG_RAW 0x0040 2947 #define ZDB_FLAG_PRINT_BLKPTR 0x0080 2948 2949 int flagbits[256]; 2950 2951 static void 2952 zdb_print_blkptr(blkptr_t *bp, int flags) 2953 { 2954 char blkbuf[BP_SPRINTF_LEN]; 2955 2956 if (flags & ZDB_FLAG_BSWAP) 2957 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 2958 2959 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2960 (void) printf("%s\n", blkbuf); 2961 } 2962 2963 static void 2964 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 2965 { 2966 int i; 2967 2968 for (i = 0; i < nbps; i++) 2969 zdb_print_blkptr(&bp[i], flags); 2970 } 2971 2972 static void 2973 zdb_dump_gbh(void *buf, int flags) 2974 { 2975 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 2976 } 2977 2978 static void 2979 zdb_dump_block_raw(void *buf, uint64_t size, int flags) 2980 { 2981 if (flags & ZDB_FLAG_BSWAP) 2982 byteswap_uint64_array(buf, size); 2983 (void) write(1, buf, size); 2984 } 2985 2986 static void 2987 zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 2988 { 2989 uint64_t *d = (uint64_t *)buf; 2990 int nwords = size / sizeof (uint64_t); 2991 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 2992 int i, j; 2993 char *hdr, *c; 2994 2995 2996 if (do_bswap) 2997 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 2998 else 2999 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 3000 3001 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 3002 3003 for (i = 0; i < nwords; i += 2) { 3004 (void) printf("%06llx: %016llx %016llx ", 3005 (u_longlong_t)(i * sizeof (uint64_t)), 3006 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 3007 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 3008 3009 c = (char *)&d[i]; 3010 for (j = 0; j < 2 * sizeof (uint64_t); j++) 3011 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 3012 (void) printf("\n"); 3013 } 3014 } 3015 3016 /* 3017 * There are two acceptable formats: 3018 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 3019 * child[.child]* - For example: 0.1.1 3020 * 3021 * The second form can be used to specify arbitrary vdevs anywhere 3022 * in the heirarchy. For example, in a pool with a mirror of 3023 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 3024 */ 3025 static vdev_t * 3026 zdb_vdev_lookup(vdev_t *vdev, char *path) 3027 { 3028 char *s, *p, *q; 3029 int i; 3030 3031 if (vdev == NULL) 3032 return (NULL); 3033 3034 /* First, assume the x.x.x.x format */ 3035 i = (int)strtoul(path, &s, 10); 3036 if (s == path || (s && *s != '.' && *s != '\0')) 3037 goto name; 3038 if (i < 0 || i >= vdev->vdev_children) 3039 return (NULL); 3040 3041 vdev = vdev->vdev_child[i]; 3042 if (*s == '\0') 3043 return (vdev); 3044 return (zdb_vdev_lookup(vdev, s+1)); 3045 3046 name: 3047 for (i = 0; i < vdev->vdev_children; i++) { 3048 vdev_t *vc = vdev->vdev_child[i]; 3049 3050 if (vc->vdev_path == NULL) { 3051 vc = zdb_vdev_lookup(vc, path); 3052 if (vc == NULL) 3053 continue; 3054 else 3055 return (vc); 3056 } 3057 3058 p = strrchr(vc->vdev_path, '/'); 3059 p = p ? p + 1 : vc->vdev_path; 3060 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 3061 3062 if (strcmp(vc->vdev_path, path) == 0) 3063 return (vc); 3064 if (strcmp(p, path) == 0) 3065 return (vc); 3066 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 3067 return (vc); 3068 } 3069 3070 return (NULL); 3071 } 3072 3073 /* 3074 * Read a block from a pool and print it out. The syntax of the 3075 * block descriptor is: 3076 * 3077 * pool:vdev_specifier:offset:size[:flags] 3078 * 3079 * pool - The name of the pool you wish to read from 3080 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 3081 * offset - offset, in hex, in bytes 3082 * size - Amount of data to read, in hex, in bytes 3083 * flags - A string of characters specifying options 3084 * b: Decode a blkptr at given offset within block 3085 * *c: Calculate and display checksums 3086 * d: Decompress data before dumping 3087 * e: Byteswap data before dumping 3088 * g: Display data as a gang block header 3089 * i: Display as an indirect block 3090 * p: Do I/O to physical offset 3091 * r: Dump raw data to stdout 3092 * 3093 * * = not yet implemented 3094 */ 3095 static void 3096 zdb_read_block(char *thing, spa_t *spa) 3097 { 3098 blkptr_t blk, *bp = &blk; 3099 dva_t *dva = bp->blk_dva; 3100 int flags = 0; 3101 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 3102 zio_t *zio; 3103 vdev_t *vd; 3104 void *pbuf, *lbuf, *buf; 3105 char *s, *p, *dup, *vdev, *flagstr; 3106 int i, error; 3107 3108 dup = strdup(thing); 3109 s = strtok(dup, ":"); 3110 vdev = s ? s : ""; 3111 s = strtok(NULL, ":"); 3112 offset = strtoull(s ? s : "", NULL, 16); 3113 s = strtok(NULL, ":"); 3114 size = strtoull(s ? s : "", NULL, 16); 3115 s = strtok(NULL, ":"); 3116 flagstr = s ? s : ""; 3117 3118 s = NULL; 3119 if (size == 0) 3120 s = "size must not be zero"; 3121 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 3122 s = "size must be a multiple of sector size"; 3123 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 3124 s = "offset must be a multiple of sector size"; 3125 if (s) { 3126 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 3127 free(dup); 3128 return; 3129 } 3130 3131 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 3132 for (i = 0; flagstr[i]; i++) { 3133 int bit = flagbits[(uchar_t)flagstr[i]]; 3134 3135 if (bit == 0) { 3136 (void) printf("***Invalid flag: %c\n", 3137 flagstr[i]); 3138 continue; 3139 } 3140 flags |= bit; 3141 3142 /* If it's not something with an argument, keep going */ 3143 if ((bit & (ZDB_FLAG_CHECKSUM | 3144 ZDB_FLAG_PRINT_BLKPTR)) == 0) 3145 continue; 3146 3147 p = &flagstr[i + 1]; 3148 if (bit == ZDB_FLAG_PRINT_BLKPTR) 3149 blkptr_offset = strtoull(p, &p, 16); 3150 if (*p != ':' && *p != '\0') { 3151 (void) printf("***Invalid flag arg: '%s'\n", s); 3152 free(dup); 3153 return; 3154 } 3155 } 3156 } 3157 3158 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 3159 if (vd == NULL) { 3160 (void) printf("***Invalid vdev: %s\n", vdev); 3161 free(dup); 3162 return; 3163 } else { 3164 if (vd->vdev_path) 3165 (void) fprintf(stderr, "Found vdev: %s\n", 3166 vd->vdev_path); 3167 else 3168 (void) fprintf(stderr, "Found vdev type: %s\n", 3169 vd->vdev_ops->vdev_op_type); 3170 } 3171 3172 psize = size; 3173 lsize = size; 3174 3175 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3176 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3177 3178 BP_ZERO(bp); 3179 3180 DVA_SET_VDEV(&dva[0], vd->vdev_id); 3181 DVA_SET_OFFSET(&dva[0], offset); 3182 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 3183 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 3184 3185 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 3186 3187 BP_SET_LSIZE(bp, lsize); 3188 BP_SET_PSIZE(bp, psize); 3189 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 3190 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 3191 BP_SET_TYPE(bp, DMU_OT_NONE); 3192 BP_SET_LEVEL(bp, 0); 3193 BP_SET_DEDUP(bp, 0); 3194 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 3195 3196 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 3197 zio = zio_root(spa, NULL, NULL, 0); 3198 3199 if (vd == vd->vdev_top) { 3200 /* 3201 * Treat this as a normal block read. 3202 */ 3203 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL, 3204 ZIO_PRIORITY_SYNC_READ, 3205 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 3206 } else { 3207 /* 3208 * Treat this as a vdev child I/O. 3209 */ 3210 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize, 3211 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 3212 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 3213 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 3214 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL)); 3215 } 3216 3217 error = zio_wait(zio); 3218 spa_config_exit(spa, SCL_STATE, FTAG); 3219 3220 if (error) { 3221 (void) printf("Read of %s failed, error: %d\n", thing, error); 3222 goto out; 3223 } 3224 3225 if (flags & ZDB_FLAG_DECOMPRESS) { 3226 /* 3227 * We don't know how the data was compressed, so just try 3228 * every decompress function at every inflated blocksize. 3229 */ 3230 enum zio_compress c; 3231 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3232 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3233 3234 bcopy(pbuf, pbuf2, psize); 3235 3236 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize, 3237 SPA_MAXBLOCKSIZE - psize) == 0); 3238 3239 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 3240 SPA_MAXBLOCKSIZE - psize) == 0); 3241 3242 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 3243 lsize -= SPA_MINBLOCKSIZE) { 3244 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 3245 if (zio_decompress_data(c, pbuf, lbuf, 3246 psize, lsize) == 0 && 3247 zio_decompress_data(c, pbuf2, lbuf2, 3248 psize, lsize) == 0 && 3249 bcmp(lbuf, lbuf2, lsize) == 0) 3250 break; 3251 } 3252 if (c != ZIO_COMPRESS_FUNCTIONS) 3253 break; 3254 lsize -= SPA_MINBLOCKSIZE; 3255 } 3256 3257 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 3258 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 3259 3260 if (lsize <= psize) { 3261 (void) printf("Decompress of %s failed\n", thing); 3262 goto out; 3263 } 3264 buf = lbuf; 3265 size = lsize; 3266 } else { 3267 buf = pbuf; 3268 size = psize; 3269 } 3270 3271 if (flags & ZDB_FLAG_PRINT_BLKPTR) 3272 zdb_print_blkptr((blkptr_t *)(void *) 3273 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 3274 else if (flags & ZDB_FLAG_RAW) 3275 zdb_dump_block_raw(buf, size, flags); 3276 else if (flags & ZDB_FLAG_INDIRECT) 3277 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 3278 flags); 3279 else if (flags & ZDB_FLAG_GBH) 3280 zdb_dump_gbh(buf, flags); 3281 else 3282 zdb_dump_block(thing, buf, size, flags); 3283 3284 out: 3285 umem_free(pbuf, SPA_MAXBLOCKSIZE); 3286 umem_free(lbuf, SPA_MAXBLOCKSIZE); 3287 free(dup); 3288 } 3289 3290 static boolean_t 3291 pool_match(nvlist_t *cfg, char *tgt) 3292 { 3293 uint64_t v, guid = strtoull(tgt, NULL, 0); 3294 char *s; 3295 3296 if (guid != 0) { 3297 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) 3298 return (v == guid); 3299 } else { 3300 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) 3301 return (strcmp(s, tgt) == 0); 3302 } 3303 return (B_FALSE); 3304 } 3305 3306 static char * 3307 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) 3308 { 3309 nvlist_t *pools; 3310 nvlist_t *match = NULL; 3311 char *name = NULL; 3312 char *sepp = NULL; 3313 char sep; 3314 int count = 0; 3315 importargs_t args = { 0 }; 3316 3317 args.paths = dirc; 3318 args.path = dirv; 3319 args.can_be_active = B_TRUE; 3320 3321 if ((sepp = strpbrk(*target, "/@")) != NULL) { 3322 sep = *sepp; 3323 *sepp = '\0'; 3324 } 3325 3326 pools = zpool_search_import(g_zfs, &args); 3327 3328 if (pools != NULL) { 3329 nvpair_t *elem = NULL; 3330 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 3331 verify(nvpair_value_nvlist(elem, configp) == 0); 3332 if (pool_match(*configp, *target)) { 3333 count++; 3334 if (match != NULL) { 3335 /* print previously found config */ 3336 if (name != NULL) { 3337 (void) printf("%s\n", name); 3338 dump_nvlist(match, 8); 3339 name = NULL; 3340 } 3341 (void) printf("%s\n", 3342 nvpair_name(elem)); 3343 dump_nvlist(*configp, 8); 3344 } else { 3345 match = *configp; 3346 name = nvpair_name(elem); 3347 } 3348 } 3349 } 3350 } 3351 if (count > 1) 3352 (void) fatal("\tMatched %d pools - use pool GUID " 3353 "instead of pool name or \n" 3354 "\tpool name part of a dataset name to select pool", count); 3355 3356 if (sepp) 3357 *sepp = sep; 3358 /* 3359 * If pool GUID was specified for pool id, replace it with pool name 3360 */ 3361 if (name && (strstr(*target, name) != *target)) { 3362 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); 3363 3364 *target = umem_alloc(sz, UMEM_NOFAIL); 3365 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); 3366 } 3367 3368 *configp = name ? match : NULL; 3369 3370 return (name); 3371 } 3372 3373 int 3374 main(int argc, char **argv) 3375 { 3376 int i, c; 3377 struct rlimit rl = { 1024, 1024 }; 3378 spa_t *spa = NULL; 3379 objset_t *os = NULL; 3380 int dump_all = 1; 3381 int verbose = 0; 3382 int error = 0; 3383 char **searchdirs = NULL; 3384 int nsearch = 0; 3385 char *target; 3386 nvlist_t *policy = NULL; 3387 uint64_t max_txg = UINT64_MAX; 3388 int rewind = ZPOOL_NEVER_REWIND; 3389 3390 (void) setrlimit(RLIMIT_NOFILE, &rl); 3391 (void) enable_extended_FILE_stdio(-1, -1); 3392 3393 dprintf_setup(&argc, argv); 3394 3395 while ((c = getopt(argc, argv, 3396 "bcdhilmMI:suCDRSAFLXx:evp:t:U:P")) != -1) { 3397 switch (c) { 3398 case 'b': 3399 case 'c': 3400 case 'd': 3401 case 'h': 3402 case 'i': 3403 case 'l': 3404 case 'm': 3405 case 's': 3406 case 'u': 3407 case 'C': 3408 case 'D': 3409 case 'M': 3410 case 'R': 3411 case 'S': 3412 dump_opt[c]++; 3413 dump_all = 0; 3414 break; 3415 case 'A': 3416 case 'F': 3417 case 'L': 3418 case 'X': 3419 case 'e': 3420 case 'P': 3421 dump_opt[c]++; 3422 break; 3423 case 'I': 3424 max_inflight = strtoull(optarg, NULL, 0); 3425 if (max_inflight == 0) { 3426 (void) fprintf(stderr, "maximum number " 3427 "of inflight I/Os must be greater " 3428 "than 0\n"); 3429 usage(); 3430 } 3431 break; 3432 case 'p': 3433 if (searchdirs == NULL) { 3434 searchdirs = umem_alloc(sizeof (char *), 3435 UMEM_NOFAIL); 3436 } else { 3437 char **tmp = umem_alloc((nsearch + 1) * 3438 sizeof (char *), UMEM_NOFAIL); 3439 bcopy(searchdirs, tmp, nsearch * 3440 sizeof (char *)); 3441 umem_free(searchdirs, 3442 nsearch * sizeof (char *)); 3443 searchdirs = tmp; 3444 } 3445 searchdirs[nsearch++] = optarg; 3446 break; 3447 case 't': 3448 max_txg = strtoull(optarg, NULL, 0); 3449 if (max_txg < TXG_INITIAL) { 3450 (void) fprintf(stderr, "incorrect txg " 3451 "specified: %s\n", optarg); 3452 usage(); 3453 } 3454 break; 3455 case 'U': 3456 spa_config_path = optarg; 3457 break; 3458 case 'v': 3459 verbose++; 3460 break; 3461 case 'x': 3462 vn_dumpdir = optarg; 3463 break; 3464 default: 3465 usage(); 3466 break; 3467 } 3468 } 3469 3470 if (!dump_opt['e'] && searchdirs != NULL) { 3471 (void) fprintf(stderr, "-p option requires use of -e\n"); 3472 usage(); 3473 } 3474 3475 /* 3476 * ZDB does not typically re-read blocks; therefore limit the ARC 3477 * to 256 MB, which can be used entirely for metadata. 3478 */ 3479 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024; 3480 3481 kernel_init(FREAD); 3482 g_zfs = libzfs_init(); 3483 ASSERT(g_zfs != NULL); 3484 3485 if (dump_all) 3486 verbose = MAX(verbose, 1); 3487 3488 for (c = 0; c < 256; c++) { 3489 if (dump_all && !strchr("elAFLRSXP", c)) 3490 dump_opt[c] = 1; 3491 if (dump_opt[c]) 3492 dump_opt[c] += verbose; 3493 } 3494 3495 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 3496 zfs_recover = (dump_opt['A'] > 1); 3497 3498 argc -= optind; 3499 argv += optind; 3500 3501 if (argc < 2 && dump_opt['R']) 3502 usage(); 3503 if (argc < 1) { 3504 if (!dump_opt['e'] && dump_opt['C']) { 3505 dump_cachefile(spa_config_path); 3506 return (0); 3507 } 3508 usage(); 3509 } 3510 3511 if (dump_opt['l']) { 3512 dump_label(argv[0]); 3513 return (0); 3514 } 3515 3516 if (dump_opt['X'] || dump_opt['F']) 3517 rewind = ZPOOL_DO_REWIND | 3518 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 3519 3520 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 3521 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 || 3522 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0) 3523 fatal("internal error: %s", strerror(ENOMEM)); 3524 3525 error = 0; 3526 target = argv[0]; 3527 3528 if (dump_opt['e']) { 3529 nvlist_t *cfg = NULL; 3530 char *name = find_zpool(&target, &cfg, nsearch, searchdirs); 3531 3532 error = ENOENT; 3533 if (name) { 3534 if (dump_opt['C'] > 1) { 3535 (void) printf("\nConfiguration for import:\n"); 3536 dump_nvlist(cfg, 8); 3537 } 3538 if (nvlist_add_nvlist(cfg, 3539 ZPOOL_REWIND_POLICY, policy) != 0) { 3540 fatal("can't open '%s': %s", 3541 target, strerror(ENOMEM)); 3542 } 3543 if ((error = spa_import(name, cfg, NULL, 3544 ZFS_IMPORT_MISSING_LOG)) != 0) { 3545 error = spa_import(name, cfg, NULL, 3546 ZFS_IMPORT_VERBATIM); 3547 } 3548 } 3549 } 3550 3551 if (error == 0) { 3552 if (strpbrk(target, "/@") == NULL || dump_opt['R']) { 3553 error = spa_open_rewind(target, &spa, FTAG, policy, 3554 NULL); 3555 if (error) { 3556 /* 3557 * If we're missing the log device then 3558 * try opening the pool after clearing the 3559 * log state. 3560 */ 3561 mutex_enter(&spa_namespace_lock); 3562 if ((spa = spa_lookup(target)) != NULL && 3563 spa->spa_log_state == SPA_LOG_MISSING) { 3564 spa->spa_log_state = SPA_LOG_CLEAR; 3565 error = 0; 3566 } 3567 mutex_exit(&spa_namespace_lock); 3568 3569 if (!error) { 3570 error = spa_open_rewind(target, &spa, 3571 FTAG, policy, NULL); 3572 } 3573 } 3574 } else { 3575 error = dmu_objset_own(target, DMU_OST_ANY, 3576 B_TRUE, FTAG, &os); 3577 } 3578 } 3579 nvlist_free(policy); 3580 3581 if (error) 3582 fatal("can't open '%s': %s", target, strerror(error)); 3583 3584 argv++; 3585 argc--; 3586 if (!dump_opt['R']) { 3587 if (argc > 0) { 3588 zopt_objects = argc; 3589 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 3590 for (i = 0; i < zopt_objects; i++) { 3591 errno = 0; 3592 zopt_object[i] = strtoull(argv[i], NULL, 0); 3593 if (zopt_object[i] == 0 && errno != 0) 3594 fatal("bad number %s: %s", 3595 argv[i], strerror(errno)); 3596 } 3597 } 3598 if (os != NULL) { 3599 dump_dir(os); 3600 } else if (zopt_objects > 0 && !dump_opt['m']) { 3601 dump_dir(spa->spa_meta_objset); 3602 } else { 3603 dump_zpool(spa); 3604 } 3605 } else { 3606 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 3607 flagbits['c'] = ZDB_FLAG_CHECKSUM; 3608 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 3609 flagbits['e'] = ZDB_FLAG_BSWAP; 3610 flagbits['g'] = ZDB_FLAG_GBH; 3611 flagbits['i'] = ZDB_FLAG_INDIRECT; 3612 flagbits['p'] = ZDB_FLAG_PHYS; 3613 flagbits['r'] = ZDB_FLAG_RAW; 3614 3615 for (i = 0; i < argc; i++) 3616 zdb_read_block(argv[i], spa); 3617 } 3618 3619 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG); 3620 3621 fuid_table_destroy(); 3622 sa_loaded = B_FALSE; 3623 3624 libzfs_fini(g_zfs); 3625 kernel_fini(); 3626 3627 return (0); 3628 } 3629