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, 2015 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 verify 63 #include <libzfs.h> 64 65 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \ 66 zio_compress_table[(idx)].ci_name : "UNKNOWN") 67 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \ 68 zio_checksum_table[(idx)].ci_name : "UNKNOWN") 69 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \ 70 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \ 71 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN") 72 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \ 73 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \ 74 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES)) 75 76 #ifndef lint 77 extern boolean_t zfs_recover; 78 extern uint64_t zfs_arc_max, zfs_arc_meta_limit; 79 extern int zfs_vdev_async_read_max_active; 80 #else 81 boolean_t zfs_recover; 82 uint64_t zfs_arc_max, zfs_arc_meta_limit; 83 int zfs_vdev_async_read_max_active; 84 #endif 85 86 const char cmdname[] = "zdb"; 87 uint8_t dump_opt[256]; 88 89 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size); 90 91 extern void dump_intent_log(zilog_t *); 92 uint64_t *zopt_object = NULL; 93 int zopt_objects = 0; 94 libzfs_handle_t *g_zfs; 95 uint64_t max_inflight = 1000; 96 97 static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *); 98 99 /* 100 * These libumem hooks provide a reasonable set of defaults for the allocator's 101 * debugging facilities. 102 */ 103 const char * 104 _umem_debug_init() 105 { 106 return ("default,verbose"); /* $UMEM_DEBUG setting */ 107 } 108 109 const char * 110 _umem_logging_init(void) 111 { 112 return ("fail,contents"); /* $UMEM_LOGGING setting */ 113 } 114 115 static void 116 usage(void) 117 { 118 (void) fprintf(stderr, 119 "Usage: %s [-CumMdibcsDvhLXFPA] [-t txg] [-e [-p path...]] " 120 "[-U config] [-I inflight I/Os] [-x dumpdir] poolname [object...]\n" 121 " %s [-divPA] [-e -p path...] [-U config] dataset " 122 "[object...]\n" 123 " %s -mM [-LXFPA] [-t txg] [-e [-p path...]] [-U config] " 124 "poolname [vdev [metaslab...]]\n" 125 " %s -R [-A] [-e [-p path...]] poolname " 126 "vdev:offset:size[:flags]\n" 127 " %s -S [-PA] [-e [-p path...]] [-U config] poolname\n" 128 " %s -l [-uA] device\n" 129 " %s -C [-A] [-U config]\n\n", 130 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname); 131 132 (void) fprintf(stderr, " Dataset name must include at least one " 133 "separator character '/' or '@'\n"); 134 (void) fprintf(stderr, " If dataset name is specified, only that " 135 "dataset is dumped\n"); 136 (void) fprintf(stderr, " If object numbers are specified, only " 137 "those objects are dumped\n\n"); 138 (void) fprintf(stderr, " Options to control amount of output:\n"); 139 (void) fprintf(stderr, " -u uberblock\n"); 140 (void) fprintf(stderr, " -d dataset(s)\n"); 141 (void) fprintf(stderr, " -i intent logs\n"); 142 (void) fprintf(stderr, " -C config (or cachefile if alone)\n"); 143 (void) fprintf(stderr, " -h pool history\n"); 144 (void) fprintf(stderr, " -b block statistics\n"); 145 (void) fprintf(stderr, " -m metaslabs\n"); 146 (void) fprintf(stderr, " -M metaslab groups\n"); 147 (void) fprintf(stderr, " -c checksum all metadata (twice for " 148 "all data) blocks\n"); 149 (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); 150 (void) fprintf(stderr, " -D dedup statistics\n"); 151 (void) fprintf(stderr, " -S simulate dedup to measure effect\n"); 152 (void) fprintf(stderr, " -v verbose (applies to all others)\n"); 153 (void) fprintf(stderr, " -l dump label contents\n"); 154 (void) fprintf(stderr, " -L disable leak tracking (do not " 155 "load spacemaps)\n"); 156 (void) fprintf(stderr, " -R read and display block from a " 157 "device\n\n"); 158 (void) fprintf(stderr, " Below options are intended for use " 159 "with other options:\n"); 160 (void) fprintf(stderr, " -A ignore assertions (-A), enable " 161 "panic recovery (-AA) or both (-AAA)\n"); 162 (void) fprintf(stderr, " -F attempt automatic rewind within " 163 "safe range of transaction groups\n"); 164 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate " 165 "cachefile\n"); 166 (void) fprintf(stderr, " -X attempt extreme rewind (does not " 167 "work with dataset)\n"); 168 (void) fprintf(stderr, " -e pool is exported/destroyed/" 169 "has altroot/not in a cachefile\n"); 170 (void) fprintf(stderr, " -p <path> -- use one or more with " 171 "-e to specify path to vdev dir\n"); 172 (void) fprintf(stderr, " -x <dumpdir> -- " 173 "dump all read blocks into specified directory\n"); 174 (void) fprintf(stderr, " -P print numbers in parseable form\n"); 175 (void) fprintf(stderr, " -t <txg> -- highest txg to use when " 176 "searching for uberblocks\n"); 177 (void) fprintf(stderr, " -I <number of inflight I/Os> -- " 178 "specify the maximum number of " 179 "checksumming I/Os [default is 200]\n"); 180 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 181 "to make only that option verbose\n"); 182 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 183 exit(1); 184 } 185 186 /* 187 * Called for usage errors that are discovered after a call to spa_open(), 188 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. 189 */ 190 191 static void 192 fatal(const char *fmt, ...) 193 { 194 va_list ap; 195 196 va_start(ap, fmt); 197 (void) fprintf(stderr, "%s: ", cmdname); 198 (void) vfprintf(stderr, fmt, ap); 199 va_end(ap); 200 (void) fprintf(stderr, "\n"); 201 202 exit(1); 203 } 204 205 /* ARGSUSED */ 206 static void 207 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 208 { 209 nvlist_t *nv; 210 size_t nvsize = *(uint64_t *)data; 211 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 212 213 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH)); 214 215 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 216 217 umem_free(packed, nvsize); 218 219 dump_nvlist(nv, 8); 220 221 nvlist_free(nv); 222 } 223 224 /* ARGSUSED */ 225 static void 226 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size) 227 { 228 spa_history_phys_t *shp = data; 229 230 if (shp == NULL) 231 return; 232 233 (void) printf("\t\tpool_create_len = %llu\n", 234 (u_longlong_t)shp->sh_pool_create_len); 235 (void) printf("\t\tphys_max_off = %llu\n", 236 (u_longlong_t)shp->sh_phys_max_off); 237 (void) printf("\t\tbof = %llu\n", 238 (u_longlong_t)shp->sh_bof); 239 (void) printf("\t\teof = %llu\n", 240 (u_longlong_t)shp->sh_eof); 241 (void) printf("\t\trecords_lost = %llu\n", 242 (u_longlong_t)shp->sh_records_lost); 243 } 244 245 static void 246 zdb_nicenum(uint64_t num, char *buf) 247 { 248 if (dump_opt['P']) 249 (void) sprintf(buf, "%llu", (longlong_t)num); 250 else 251 nicenum(num, buf); 252 } 253 254 const char histo_stars[] = "****************************************"; 255 const int histo_width = sizeof (histo_stars) - 1; 256 257 static void 258 dump_histogram(const uint64_t *histo, int size, int offset) 259 { 260 int i; 261 int minidx = size - 1; 262 int maxidx = 0; 263 uint64_t max = 0; 264 265 for (i = 0; i < size; i++) { 266 if (histo[i] > max) 267 max = histo[i]; 268 if (histo[i] > 0 && i > maxidx) 269 maxidx = i; 270 if (histo[i] > 0 && i < minidx) 271 minidx = i; 272 } 273 274 if (max < histo_width) 275 max = histo_width; 276 277 for (i = minidx; i <= maxidx; i++) { 278 (void) printf("\t\t\t%3u: %6llu %s\n", 279 i + offset, (u_longlong_t)histo[i], 280 &histo_stars[(max - histo[i]) * histo_width / max]); 281 } 282 } 283 284 static void 285 dump_zap_stats(objset_t *os, uint64_t object) 286 { 287 int error; 288 zap_stats_t zs; 289 290 error = zap_get_stats(os, object, &zs); 291 if (error) 292 return; 293 294 if (zs.zs_ptrtbl_len == 0) { 295 ASSERT(zs.zs_num_blocks == 1); 296 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 297 (u_longlong_t)zs.zs_blocksize, 298 (u_longlong_t)zs.zs_num_entries); 299 return; 300 } 301 302 (void) printf("\tFat ZAP stats:\n"); 303 304 (void) printf("\t\tPointer table:\n"); 305 (void) printf("\t\t\t%llu elements\n", 306 (u_longlong_t)zs.zs_ptrtbl_len); 307 (void) printf("\t\t\tzt_blk: %llu\n", 308 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 309 (void) printf("\t\t\tzt_numblks: %llu\n", 310 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 311 (void) printf("\t\t\tzt_shift: %llu\n", 312 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 313 (void) printf("\t\t\tzt_blks_copied: %llu\n", 314 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 315 (void) printf("\t\t\tzt_nextblk: %llu\n", 316 (u_longlong_t)zs.zs_ptrtbl_nextblk); 317 318 (void) printf("\t\tZAP entries: %llu\n", 319 (u_longlong_t)zs.zs_num_entries); 320 (void) printf("\t\tLeaf blocks: %llu\n", 321 (u_longlong_t)zs.zs_num_leafs); 322 (void) printf("\t\tTotal blocks: %llu\n", 323 (u_longlong_t)zs.zs_num_blocks); 324 (void) printf("\t\tzap_block_type: 0x%llx\n", 325 (u_longlong_t)zs.zs_block_type); 326 (void) printf("\t\tzap_magic: 0x%llx\n", 327 (u_longlong_t)zs.zs_magic); 328 (void) printf("\t\tzap_salt: 0x%llx\n", 329 (u_longlong_t)zs.zs_salt); 330 331 (void) printf("\t\tLeafs with 2^n pointers:\n"); 332 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0); 333 334 (void) printf("\t\tBlocks with n*5 entries:\n"); 335 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0); 336 337 (void) printf("\t\tBlocks n/10 full:\n"); 338 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0); 339 340 (void) printf("\t\tEntries with n chunks:\n"); 341 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0); 342 343 (void) printf("\t\tBuckets with n entries:\n"); 344 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0); 345 } 346 347 /*ARGSUSED*/ 348 static void 349 dump_none(objset_t *os, uint64_t object, void *data, size_t size) 350 { 351 } 352 353 /*ARGSUSED*/ 354 static void 355 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size) 356 { 357 (void) printf("\tUNKNOWN OBJECT TYPE\n"); 358 } 359 360 /*ARGSUSED*/ 361 void 362 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 363 { 364 } 365 366 /*ARGSUSED*/ 367 static void 368 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 369 { 370 } 371 372 /*ARGSUSED*/ 373 static void 374 dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 375 { 376 zap_cursor_t zc; 377 zap_attribute_t attr; 378 void *prop; 379 int i; 380 381 dump_zap_stats(os, object); 382 (void) printf("\n"); 383 384 for (zap_cursor_init(&zc, os, object); 385 zap_cursor_retrieve(&zc, &attr) == 0; 386 zap_cursor_advance(&zc)) { 387 (void) printf("\t\t%s = ", attr.za_name); 388 if (attr.za_num_integers == 0) { 389 (void) printf("\n"); 390 continue; 391 } 392 prop = umem_zalloc(attr.za_num_integers * 393 attr.za_integer_length, UMEM_NOFAIL); 394 (void) zap_lookup(os, object, attr.za_name, 395 attr.za_integer_length, attr.za_num_integers, prop); 396 if (attr.za_integer_length == 1) { 397 (void) printf("%s", (char *)prop); 398 } else { 399 for (i = 0; i < attr.za_num_integers; i++) { 400 switch (attr.za_integer_length) { 401 case 2: 402 (void) printf("%u ", 403 ((uint16_t *)prop)[i]); 404 break; 405 case 4: 406 (void) printf("%u ", 407 ((uint32_t *)prop)[i]); 408 break; 409 case 8: 410 (void) printf("%lld ", 411 (u_longlong_t)((int64_t *)prop)[i]); 412 break; 413 } 414 } 415 } 416 (void) printf("\n"); 417 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 418 } 419 zap_cursor_fini(&zc); 420 } 421 422 static void 423 dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size) 424 { 425 bpobj_phys_t *bpop = data; 426 char bytes[32], comp[32], uncomp[32]; 427 428 if (bpop == NULL) 429 return; 430 431 zdb_nicenum(bpop->bpo_bytes, bytes); 432 zdb_nicenum(bpop->bpo_comp, comp); 433 zdb_nicenum(bpop->bpo_uncomp, uncomp); 434 435 (void) printf("\t\tnum_blkptrs = %llu\n", 436 (u_longlong_t)bpop->bpo_num_blkptrs); 437 (void) printf("\t\tbytes = %s\n", bytes); 438 if (size >= BPOBJ_SIZE_V1) { 439 (void) printf("\t\tcomp = %s\n", comp); 440 (void) printf("\t\tuncomp = %s\n", uncomp); 441 } 442 if (size >= sizeof (*bpop)) { 443 (void) printf("\t\tsubobjs = %llu\n", 444 (u_longlong_t)bpop->bpo_subobjs); 445 (void) printf("\t\tnum_subobjs = %llu\n", 446 (u_longlong_t)bpop->bpo_num_subobjs); 447 } 448 449 if (dump_opt['d'] < 5) 450 return; 451 452 for (uint64_t i = 0; i < bpop->bpo_num_blkptrs; i++) { 453 char blkbuf[BP_SPRINTF_LEN]; 454 blkptr_t bp; 455 456 int err = dmu_read(os, object, 457 i * sizeof (bp), sizeof (bp), &bp, 0); 458 if (err != 0) { 459 (void) printf("got error %u from dmu_read\n", err); 460 break; 461 } 462 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp); 463 (void) printf("\t%s\n", blkbuf); 464 } 465 } 466 467 /* ARGSUSED */ 468 static void 469 dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size) 470 { 471 dmu_object_info_t doi; 472 473 VERIFY0(dmu_object_info(os, object, &doi)); 474 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP); 475 476 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0); 477 if (err != 0) { 478 (void) printf("got error %u from dmu_read\n", err); 479 kmem_free(subobjs, doi.doi_max_offset); 480 return; 481 } 482 483 int64_t last_nonzero = -1; 484 for (uint64_t i = 0; i < doi.doi_max_offset / 8; i++) { 485 if (subobjs[i] != 0) 486 last_nonzero = i; 487 } 488 489 for (int64_t i = 0; i <= last_nonzero; i++) { 490 (void) printf("\t%llu\n", (longlong_t)subobjs[i]); 491 } 492 kmem_free(subobjs, doi.doi_max_offset); 493 } 494 495 /*ARGSUSED*/ 496 static void 497 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size) 498 { 499 dump_zap_stats(os, object); 500 /* contents are printed elsewhere, properly decoded */ 501 } 502 503 /*ARGSUSED*/ 504 static void 505 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size) 506 { 507 zap_cursor_t zc; 508 zap_attribute_t attr; 509 510 dump_zap_stats(os, object); 511 (void) printf("\n"); 512 513 for (zap_cursor_init(&zc, os, object); 514 zap_cursor_retrieve(&zc, &attr) == 0; 515 zap_cursor_advance(&zc)) { 516 (void) printf("\t\t%s = ", attr.za_name); 517 if (attr.za_num_integers == 0) { 518 (void) printf("\n"); 519 continue; 520 } 521 (void) printf(" %llx : [%d:%d:%d]\n", 522 (u_longlong_t)attr.za_first_integer, 523 (int)ATTR_LENGTH(attr.za_first_integer), 524 (int)ATTR_BSWAP(attr.za_first_integer), 525 (int)ATTR_NUM(attr.za_first_integer)); 526 } 527 zap_cursor_fini(&zc); 528 } 529 530 /*ARGSUSED*/ 531 static void 532 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size) 533 { 534 zap_cursor_t zc; 535 zap_attribute_t attr; 536 uint16_t *layout_attrs; 537 int i; 538 539 dump_zap_stats(os, object); 540 (void) printf("\n"); 541 542 for (zap_cursor_init(&zc, os, object); 543 zap_cursor_retrieve(&zc, &attr) == 0; 544 zap_cursor_advance(&zc)) { 545 (void) printf("\t\t%s = [", attr.za_name); 546 if (attr.za_num_integers == 0) { 547 (void) printf("\n"); 548 continue; 549 } 550 551 VERIFY(attr.za_integer_length == 2); 552 layout_attrs = umem_zalloc(attr.za_num_integers * 553 attr.za_integer_length, UMEM_NOFAIL); 554 555 VERIFY(zap_lookup(os, object, attr.za_name, 556 attr.za_integer_length, 557 attr.za_num_integers, layout_attrs) == 0); 558 559 for (i = 0; i != attr.za_num_integers; i++) 560 (void) printf(" %d ", (int)layout_attrs[i]); 561 (void) printf("]\n"); 562 umem_free(layout_attrs, 563 attr.za_num_integers * attr.za_integer_length); 564 } 565 zap_cursor_fini(&zc); 566 } 567 568 /*ARGSUSED*/ 569 static void 570 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 571 { 572 zap_cursor_t zc; 573 zap_attribute_t attr; 574 const char *typenames[] = { 575 /* 0 */ "not specified", 576 /* 1 */ "FIFO", 577 /* 2 */ "Character Device", 578 /* 3 */ "3 (invalid)", 579 /* 4 */ "Directory", 580 /* 5 */ "5 (invalid)", 581 /* 6 */ "Block Device", 582 /* 7 */ "7 (invalid)", 583 /* 8 */ "Regular File", 584 /* 9 */ "9 (invalid)", 585 /* 10 */ "Symbolic Link", 586 /* 11 */ "11 (invalid)", 587 /* 12 */ "Socket", 588 /* 13 */ "Door", 589 /* 14 */ "Event Port", 590 /* 15 */ "15 (invalid)", 591 }; 592 593 dump_zap_stats(os, object); 594 (void) printf("\n"); 595 596 for (zap_cursor_init(&zc, os, object); 597 zap_cursor_retrieve(&zc, &attr) == 0; 598 zap_cursor_advance(&zc)) { 599 (void) printf("\t\t%s = %lld (type: %s)\n", 600 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 601 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 602 } 603 zap_cursor_fini(&zc); 604 } 605 606 int 607 get_dtl_refcount(vdev_t *vd) 608 { 609 int refcount = 0; 610 611 if (vd->vdev_ops->vdev_op_leaf) { 612 space_map_t *sm = vd->vdev_dtl_sm; 613 614 if (sm != NULL && 615 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 616 return (1); 617 return (0); 618 } 619 620 for (int c = 0; c < vd->vdev_children; c++) 621 refcount += get_dtl_refcount(vd->vdev_child[c]); 622 return (refcount); 623 } 624 625 int 626 get_metaslab_refcount(vdev_t *vd) 627 { 628 int refcount = 0; 629 630 if (vd->vdev_top == vd && !vd->vdev_removing) { 631 for (int m = 0; m < vd->vdev_ms_count; m++) { 632 space_map_t *sm = vd->vdev_ms[m]->ms_sm; 633 634 if (sm != NULL && 635 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 636 refcount++; 637 } 638 } 639 for (int c = 0; c < vd->vdev_children; c++) 640 refcount += get_metaslab_refcount(vd->vdev_child[c]); 641 642 return (refcount); 643 } 644 645 static int 646 verify_spacemap_refcounts(spa_t *spa) 647 { 648 uint64_t expected_refcount = 0; 649 uint64_t actual_refcount; 650 651 (void) feature_get_refcount(spa, 652 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM], 653 &expected_refcount); 654 actual_refcount = get_dtl_refcount(spa->spa_root_vdev); 655 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev); 656 657 if (expected_refcount != actual_refcount) { 658 (void) printf("space map refcount mismatch: expected %lld != " 659 "actual %lld\n", 660 (longlong_t)expected_refcount, 661 (longlong_t)actual_refcount); 662 return (2); 663 } 664 return (0); 665 } 666 667 static void 668 dump_spacemap(objset_t *os, space_map_t *sm) 669 { 670 uint64_t alloc, offset, entry; 671 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 672 "INVALID", "INVALID", "INVALID", "INVALID" }; 673 674 if (sm == NULL) 675 return; 676 677 /* 678 * Print out the freelist entries in both encoded and decoded form. 679 */ 680 alloc = 0; 681 for (offset = 0; offset < space_map_length(sm); 682 offset += sizeof (entry)) { 683 uint8_t mapshift = sm->sm_shift; 684 685 VERIFY0(dmu_read(os, space_map_object(sm), offset, 686 sizeof (entry), &entry, DMU_READ_PREFETCH)); 687 if (SM_DEBUG_DECODE(entry)) { 688 689 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n", 690 (u_longlong_t)(offset / sizeof (entry)), 691 ddata[SM_DEBUG_ACTION_DECODE(entry)], 692 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry), 693 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry)); 694 } else { 695 (void) printf("\t [%6llu] %c range:" 696 " %010llx-%010llx size: %06llx\n", 697 (u_longlong_t)(offset / sizeof (entry)), 698 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 699 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 700 mapshift) + sm->sm_start), 701 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 702 mapshift) + sm->sm_start + 703 (SM_RUN_DECODE(entry) << mapshift)), 704 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift)); 705 if (SM_TYPE_DECODE(entry) == SM_ALLOC) 706 alloc += SM_RUN_DECODE(entry) << mapshift; 707 else 708 alloc -= SM_RUN_DECODE(entry) << mapshift; 709 } 710 } 711 if (alloc != space_map_allocated(sm)) { 712 (void) printf("space_map_object alloc (%llu) INCONSISTENT " 713 "with space map summary (%llu)\n", 714 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc); 715 } 716 } 717 718 static void 719 dump_metaslab_stats(metaslab_t *msp) 720 { 721 char maxbuf[32]; 722 range_tree_t *rt = msp->ms_tree; 723 avl_tree_t *t = &msp->ms_size_tree; 724 int free_pct = range_tree_space(rt) * 100 / msp->ms_size; 725 726 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf); 727 728 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", 729 "segments", avl_numnodes(t), "maxsize", maxbuf, 730 "freepct", free_pct); 731 (void) printf("\tIn-memory histogram:\n"); 732 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 733 } 734 735 static void 736 dump_metaslab(metaslab_t *msp) 737 { 738 vdev_t *vd = msp->ms_group->mg_vd; 739 spa_t *spa = vd->vdev_spa; 740 space_map_t *sm = msp->ms_sm; 741 char freebuf[32]; 742 743 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf); 744 745 (void) printf( 746 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", 747 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start, 748 (u_longlong_t)space_map_object(sm), freebuf); 749 750 if (dump_opt['m'] > 2 && !dump_opt['L']) { 751 mutex_enter(&msp->ms_lock); 752 metaslab_load_wait(msp); 753 if (!msp->ms_loaded) { 754 VERIFY0(metaslab_load(msp)); 755 range_tree_stat_verify(msp->ms_tree); 756 } 757 dump_metaslab_stats(msp); 758 metaslab_unload(msp); 759 mutex_exit(&msp->ms_lock); 760 } 761 762 if (dump_opt['m'] > 1 && sm != NULL && 763 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) { 764 /* 765 * The space map histogram represents free space in chunks 766 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift). 767 */ 768 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n", 769 (u_longlong_t)msp->ms_fragmentation); 770 dump_histogram(sm->sm_phys->smp_histogram, 771 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift); 772 } 773 774 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) { 775 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift)); 776 777 mutex_enter(&msp->ms_lock); 778 dump_spacemap(spa->spa_meta_objset, msp->ms_sm); 779 mutex_exit(&msp->ms_lock); 780 } 781 } 782 783 static void 784 print_vdev_metaslab_header(vdev_t *vd) 785 { 786 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n", 787 (u_longlong_t)vd->vdev_id, 788 "metaslabs", (u_longlong_t)vd->vdev_ms_count, 789 "offset", "spacemap", "free"); 790 (void) printf("\t%15s %19s %15s %10s\n", 791 "---------------", "-------------------", 792 "---------------", "-------------"); 793 } 794 795 static void 796 dump_metaslab_groups(spa_t *spa) 797 { 798 vdev_t *rvd = spa->spa_root_vdev; 799 metaslab_class_t *mc = spa_normal_class(spa); 800 uint64_t fragmentation; 801 802 metaslab_class_histogram_verify(mc); 803 804 for (int c = 0; c < rvd->vdev_children; c++) { 805 vdev_t *tvd = rvd->vdev_child[c]; 806 metaslab_group_t *mg = tvd->vdev_mg; 807 808 if (mg->mg_class != mc) 809 continue; 810 811 metaslab_group_histogram_verify(mg); 812 mg->mg_fragmentation = metaslab_group_fragmentation(mg); 813 814 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t" 815 "fragmentation", 816 (u_longlong_t)tvd->vdev_id, 817 (u_longlong_t)tvd->vdev_ms_count); 818 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) { 819 (void) printf("%3s\n", "-"); 820 } else { 821 (void) printf("%3llu%%\n", 822 (u_longlong_t)mg->mg_fragmentation); 823 } 824 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 825 } 826 827 (void) printf("\tpool %s\tfragmentation", spa_name(spa)); 828 fragmentation = metaslab_class_fragmentation(mc); 829 if (fragmentation == ZFS_FRAG_INVALID) 830 (void) printf("\t%3s\n", "-"); 831 else 832 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation); 833 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 834 } 835 836 static void 837 dump_metaslabs(spa_t *spa) 838 { 839 vdev_t *vd, *rvd = spa->spa_root_vdev; 840 uint64_t m, c = 0, children = rvd->vdev_children; 841 842 (void) printf("\nMetaslabs:\n"); 843 844 if (!dump_opt['d'] && zopt_objects > 0) { 845 c = zopt_object[0]; 846 847 if (c >= children) 848 (void) fatal("bad vdev id: %llu", (u_longlong_t)c); 849 850 if (zopt_objects > 1) { 851 vd = rvd->vdev_child[c]; 852 print_vdev_metaslab_header(vd); 853 854 for (m = 1; m < zopt_objects; m++) { 855 if (zopt_object[m] < vd->vdev_ms_count) 856 dump_metaslab( 857 vd->vdev_ms[zopt_object[m]]); 858 else 859 (void) fprintf(stderr, "bad metaslab " 860 "number %llu\n", 861 (u_longlong_t)zopt_object[m]); 862 } 863 (void) printf("\n"); 864 return; 865 } 866 children = c + 1; 867 } 868 for (; c < children; c++) { 869 vd = rvd->vdev_child[c]; 870 print_vdev_metaslab_header(vd); 871 872 for (m = 0; m < vd->vdev_ms_count; m++) 873 dump_metaslab(vd->vdev_ms[m]); 874 (void) printf("\n"); 875 } 876 } 877 878 static void 879 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) 880 { 881 const ddt_phys_t *ddp = dde->dde_phys; 882 const ddt_key_t *ddk = &dde->dde_key; 883 char *types[4] = { "ditto", "single", "double", "triple" }; 884 char blkbuf[BP_SPRINTF_LEN]; 885 blkptr_t blk; 886 887 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 888 if (ddp->ddp_phys_birth == 0) 889 continue; 890 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); 891 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk); 892 (void) printf("index %llx refcnt %llu %s %s\n", 893 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, 894 types[p], blkbuf); 895 } 896 } 897 898 static void 899 dump_dedup_ratio(const ddt_stat_t *dds) 900 { 901 double rL, rP, rD, D, dedup, compress, copies; 902 903 if (dds->dds_blocks == 0) 904 return; 905 906 rL = (double)dds->dds_ref_lsize; 907 rP = (double)dds->dds_ref_psize; 908 rD = (double)dds->dds_ref_dsize; 909 D = (double)dds->dds_dsize; 910 911 dedup = rD / D; 912 compress = rL / rP; 913 copies = rD / rP; 914 915 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " 916 "dedup * compress / copies = %.2f\n\n", 917 dedup, compress, copies, dedup * compress / copies); 918 } 919 920 static void 921 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class) 922 { 923 char name[DDT_NAMELEN]; 924 ddt_entry_t dde; 925 uint64_t walk = 0; 926 dmu_object_info_t doi; 927 uint64_t count, dspace, mspace; 928 int error; 929 930 error = ddt_object_info(ddt, type, class, &doi); 931 932 if (error == ENOENT) 933 return; 934 ASSERT(error == 0); 935 936 if ((count = ddt_object_count(ddt, type, class)) == 0) 937 return; 938 939 dspace = doi.doi_physical_blocks_512 << 9; 940 mspace = doi.doi_fill_count * doi.doi_data_block_size; 941 942 ddt_object_name(ddt, type, class, name); 943 944 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n", 945 name, 946 (u_longlong_t)count, 947 (u_longlong_t)(dspace / count), 948 (u_longlong_t)(mspace / count)); 949 950 if (dump_opt['D'] < 3) 951 return; 952 953 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]); 954 955 if (dump_opt['D'] < 4) 956 return; 957 958 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE) 959 return; 960 961 (void) printf("%s contents:\n\n", name); 962 963 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0) 964 dump_dde(ddt, &dde, walk); 965 966 ASSERT(error == ENOENT); 967 968 (void) printf("\n"); 969 } 970 971 static void 972 dump_all_ddts(spa_t *spa) 973 { 974 ddt_histogram_t ddh_total = { 0 }; 975 ddt_stat_t dds_total = { 0 }; 976 977 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { 978 ddt_t *ddt = spa->spa_ddt[c]; 979 for (enum ddt_type type = 0; type < DDT_TYPES; type++) { 980 for (enum ddt_class class = 0; class < DDT_CLASSES; 981 class++) { 982 dump_ddt(ddt, type, class); 983 } 984 } 985 } 986 987 ddt_get_dedup_stats(spa, &dds_total); 988 989 if (dds_total.dds_blocks == 0) { 990 (void) printf("All DDTs are empty\n"); 991 return; 992 } 993 994 (void) printf("\n"); 995 996 if (dump_opt['D'] > 1) { 997 (void) printf("DDT histogram (aggregated over all DDTs):\n"); 998 ddt_get_dedup_histogram(spa, &ddh_total); 999 zpool_dump_ddt(&dds_total, &ddh_total); 1000 } 1001 1002 dump_dedup_ratio(&dds_total); 1003 } 1004 1005 static void 1006 dump_dtl_seg(void *arg, uint64_t start, uint64_t size) 1007 { 1008 char *prefix = arg; 1009 1010 (void) printf("%s [%llu,%llu) length %llu\n", 1011 prefix, 1012 (u_longlong_t)start, 1013 (u_longlong_t)(start + size), 1014 (u_longlong_t)(size)); 1015 } 1016 1017 static void 1018 dump_dtl(vdev_t *vd, int indent) 1019 { 1020 spa_t *spa = vd->vdev_spa; 1021 boolean_t required; 1022 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" }; 1023 char prefix[256]; 1024 1025 spa_vdev_state_enter(spa, SCL_NONE); 1026 required = vdev_dtl_required(vd); 1027 (void) spa_vdev_state_exit(spa, NULL, 0); 1028 1029 if (indent == 0) 1030 (void) printf("\nDirty time logs:\n\n"); 1031 1032 (void) printf("\t%*s%s [%s]\n", indent, "", 1033 vd->vdev_path ? vd->vdev_path : 1034 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 1035 required ? "DTL-required" : "DTL-expendable"); 1036 1037 for (int t = 0; t < DTL_TYPES; t++) { 1038 range_tree_t *rt = vd->vdev_dtl[t]; 1039 if (range_tree_space(rt) == 0) 1040 continue; 1041 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 1042 indent + 2, "", name[t]); 1043 mutex_enter(rt->rt_lock); 1044 range_tree_walk(rt, dump_dtl_seg, prefix); 1045 mutex_exit(rt->rt_lock); 1046 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 1047 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm); 1048 } 1049 1050 for (int c = 0; c < vd->vdev_children; c++) 1051 dump_dtl(vd->vdev_child[c], indent + 4); 1052 } 1053 1054 static void 1055 dump_history(spa_t *spa) 1056 { 1057 nvlist_t **events = NULL; 1058 char buf[SPA_MAXBLOCKSIZE]; 1059 uint64_t resid, len, off = 0; 1060 uint_t num = 0; 1061 int error; 1062 time_t tsec; 1063 struct tm t; 1064 char tbuf[30]; 1065 char internalstr[MAXPATHLEN]; 1066 1067 do { 1068 len = sizeof (buf); 1069 1070 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 1071 (void) fprintf(stderr, "Unable to read history: " 1072 "error %d\n", error); 1073 return; 1074 } 1075 1076 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 1077 break; 1078 1079 off -= resid; 1080 } while (len != 0); 1081 1082 (void) printf("\nHistory:\n"); 1083 for (int i = 0; i < num; i++) { 1084 uint64_t time, txg, ievent; 1085 char *cmd, *intstr; 1086 boolean_t printed = B_FALSE; 1087 1088 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, 1089 &time) != 0) 1090 goto next; 1091 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, 1092 &cmd) != 0) { 1093 if (nvlist_lookup_uint64(events[i], 1094 ZPOOL_HIST_INT_EVENT, &ievent) != 0) 1095 goto next; 1096 verify(nvlist_lookup_uint64(events[i], 1097 ZPOOL_HIST_TXG, &txg) == 0); 1098 verify(nvlist_lookup_string(events[i], 1099 ZPOOL_HIST_INT_STR, &intstr) == 0); 1100 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 1101 goto next; 1102 1103 (void) snprintf(internalstr, 1104 sizeof (internalstr), 1105 "[internal %s txg:%lld] %s", 1106 zfs_history_event_names[ievent], txg, 1107 intstr); 1108 cmd = internalstr; 1109 } 1110 tsec = time; 1111 (void) localtime_r(&tsec, &t); 1112 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 1113 (void) printf("%s %s\n", tbuf, cmd); 1114 printed = B_TRUE; 1115 1116 next: 1117 if (dump_opt['h'] > 1) { 1118 if (!printed) 1119 (void) printf("unrecognized record:\n"); 1120 dump_nvlist(events[i], 2); 1121 } 1122 } 1123 } 1124 1125 /*ARGSUSED*/ 1126 static void 1127 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 1128 { 1129 } 1130 1131 static uint64_t 1132 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, 1133 const zbookmark_phys_t *zb) 1134 { 1135 if (dnp == NULL) { 1136 ASSERT(zb->zb_level < 0); 1137 if (zb->zb_object == 0) 1138 return (zb->zb_blkid); 1139 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 1140 } 1141 1142 ASSERT(zb->zb_level >= 0); 1143 1144 return ((zb->zb_blkid << 1145 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 1146 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 1147 } 1148 1149 static void 1150 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp) 1151 { 1152 const dva_t *dva = bp->blk_dva; 1153 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 1154 1155 if (dump_opt['b'] >= 6) { 1156 snprintf_blkptr(blkbuf, buflen, bp); 1157 return; 1158 } 1159 1160 if (BP_IS_EMBEDDED(bp)) { 1161 (void) sprintf(blkbuf, 1162 "EMBEDDED et=%u %llxL/%llxP B=%llu", 1163 (int)BPE_GET_ETYPE(bp), 1164 (u_longlong_t)BPE_GET_LSIZE(bp), 1165 (u_longlong_t)BPE_GET_PSIZE(bp), 1166 (u_longlong_t)bp->blk_birth); 1167 return; 1168 } 1169 1170 blkbuf[0] = '\0'; 1171 for (int i = 0; i < ndvas; i++) 1172 (void) snprintf(blkbuf + strlen(blkbuf), 1173 buflen - strlen(blkbuf), "%llu:%llx:%llx ", 1174 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 1175 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 1176 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 1177 1178 if (BP_IS_HOLE(bp)) { 1179 (void) snprintf(blkbuf + strlen(blkbuf), 1180 buflen - strlen(blkbuf), 1181 "%llxL B=%llu", 1182 (u_longlong_t)BP_GET_LSIZE(bp), 1183 (u_longlong_t)bp->blk_birth); 1184 } else { 1185 (void) snprintf(blkbuf + strlen(blkbuf), 1186 buflen - strlen(blkbuf), 1187 "%llxL/%llxP F=%llu B=%llu/%llu", 1188 (u_longlong_t)BP_GET_LSIZE(bp), 1189 (u_longlong_t)BP_GET_PSIZE(bp), 1190 (u_longlong_t)BP_GET_FILL(bp), 1191 (u_longlong_t)bp->blk_birth, 1192 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 1193 } 1194 } 1195 1196 static void 1197 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb, 1198 const dnode_phys_t *dnp) 1199 { 1200 char blkbuf[BP_SPRINTF_LEN]; 1201 int l; 1202 1203 if (!BP_IS_EMBEDDED(bp)) { 1204 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 1205 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 1206 } 1207 1208 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 1209 1210 ASSERT(zb->zb_level >= 0); 1211 1212 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 1213 if (l == zb->zb_level) { 1214 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 1215 } else { 1216 (void) printf(" "); 1217 } 1218 } 1219 1220 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1221 (void) printf("%s\n", blkbuf); 1222 } 1223 1224 static int 1225 visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 1226 blkptr_t *bp, const zbookmark_phys_t *zb) 1227 { 1228 int err = 0; 1229 1230 if (bp->blk_birth == 0) 1231 return (0); 1232 1233 print_indirect(bp, zb, dnp); 1234 1235 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) { 1236 arc_flags_t flags = ARC_FLAG_WAIT; 1237 int i; 1238 blkptr_t *cbp; 1239 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 1240 arc_buf_t *buf; 1241 uint64_t fill = 0; 1242 1243 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 1244 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 1245 if (err) 1246 return (err); 1247 ASSERT(buf->b_data); 1248 1249 /* recursively visit blocks below this */ 1250 cbp = buf->b_data; 1251 for (i = 0; i < epb; i++, cbp++) { 1252 zbookmark_phys_t czb; 1253 1254 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 1255 zb->zb_level - 1, 1256 zb->zb_blkid * epb + i); 1257 err = visit_indirect(spa, dnp, cbp, &czb); 1258 if (err) 1259 break; 1260 fill += BP_GET_FILL(cbp); 1261 } 1262 if (!err) 1263 ASSERT3U(fill, ==, BP_GET_FILL(bp)); 1264 (void) arc_buf_remove_ref(buf, &buf); 1265 } 1266 1267 return (err); 1268 } 1269 1270 /*ARGSUSED*/ 1271 static void 1272 dump_indirect(dnode_t *dn) 1273 { 1274 dnode_phys_t *dnp = dn->dn_phys; 1275 int j; 1276 zbookmark_phys_t czb; 1277 1278 (void) printf("Indirect blocks:\n"); 1279 1280 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 1281 dn->dn_object, dnp->dn_nlevels - 1, 0); 1282 for (j = 0; j < dnp->dn_nblkptr; j++) { 1283 czb.zb_blkid = j; 1284 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 1285 &dnp->dn_blkptr[j], &czb); 1286 } 1287 1288 (void) printf("\n"); 1289 } 1290 1291 /*ARGSUSED*/ 1292 static void 1293 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 1294 { 1295 dsl_dir_phys_t *dd = data; 1296 time_t crtime; 1297 char nice[32]; 1298 1299 if (dd == NULL) 1300 return; 1301 1302 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 1303 1304 crtime = dd->dd_creation_time; 1305 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1306 (void) printf("\t\thead_dataset_obj = %llu\n", 1307 (u_longlong_t)dd->dd_head_dataset_obj); 1308 (void) printf("\t\tparent_dir_obj = %llu\n", 1309 (u_longlong_t)dd->dd_parent_obj); 1310 (void) printf("\t\torigin_obj = %llu\n", 1311 (u_longlong_t)dd->dd_origin_obj); 1312 (void) printf("\t\tchild_dir_zapobj = %llu\n", 1313 (u_longlong_t)dd->dd_child_dir_zapobj); 1314 zdb_nicenum(dd->dd_used_bytes, nice); 1315 (void) printf("\t\tused_bytes = %s\n", nice); 1316 zdb_nicenum(dd->dd_compressed_bytes, nice); 1317 (void) printf("\t\tcompressed_bytes = %s\n", nice); 1318 zdb_nicenum(dd->dd_uncompressed_bytes, nice); 1319 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 1320 zdb_nicenum(dd->dd_quota, nice); 1321 (void) printf("\t\tquota = %s\n", nice); 1322 zdb_nicenum(dd->dd_reserved, nice); 1323 (void) printf("\t\treserved = %s\n", nice); 1324 (void) printf("\t\tprops_zapobj = %llu\n", 1325 (u_longlong_t)dd->dd_props_zapobj); 1326 (void) printf("\t\tdeleg_zapobj = %llu\n", 1327 (u_longlong_t)dd->dd_deleg_zapobj); 1328 (void) printf("\t\tflags = %llx\n", 1329 (u_longlong_t)dd->dd_flags); 1330 1331 #define DO(which) \ 1332 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \ 1333 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 1334 DO(HEAD); 1335 DO(SNAP); 1336 DO(CHILD); 1337 DO(CHILD_RSRV); 1338 DO(REFRSRV); 1339 #undef DO 1340 } 1341 1342 /*ARGSUSED*/ 1343 static void 1344 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 1345 { 1346 dsl_dataset_phys_t *ds = data; 1347 time_t crtime; 1348 char used[32], compressed[32], uncompressed[32], unique[32]; 1349 char blkbuf[BP_SPRINTF_LEN]; 1350 1351 if (ds == NULL) 1352 return; 1353 1354 ASSERT(size == sizeof (*ds)); 1355 crtime = ds->ds_creation_time; 1356 zdb_nicenum(ds->ds_referenced_bytes, used); 1357 zdb_nicenum(ds->ds_compressed_bytes, compressed); 1358 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed); 1359 zdb_nicenum(ds->ds_unique_bytes, unique); 1360 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp); 1361 1362 (void) printf("\t\tdir_obj = %llu\n", 1363 (u_longlong_t)ds->ds_dir_obj); 1364 (void) printf("\t\tprev_snap_obj = %llu\n", 1365 (u_longlong_t)ds->ds_prev_snap_obj); 1366 (void) printf("\t\tprev_snap_txg = %llu\n", 1367 (u_longlong_t)ds->ds_prev_snap_txg); 1368 (void) printf("\t\tnext_snap_obj = %llu\n", 1369 (u_longlong_t)ds->ds_next_snap_obj); 1370 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1371 (u_longlong_t)ds->ds_snapnames_zapobj); 1372 (void) printf("\t\tnum_children = %llu\n", 1373 (u_longlong_t)ds->ds_num_children); 1374 (void) printf("\t\tuserrefs_obj = %llu\n", 1375 (u_longlong_t)ds->ds_userrefs_obj); 1376 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1377 (void) printf("\t\tcreation_txg = %llu\n", 1378 (u_longlong_t)ds->ds_creation_txg); 1379 (void) printf("\t\tdeadlist_obj = %llu\n", 1380 (u_longlong_t)ds->ds_deadlist_obj); 1381 (void) printf("\t\tused_bytes = %s\n", used); 1382 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1383 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1384 (void) printf("\t\tunique = %s\n", unique); 1385 (void) printf("\t\tfsid_guid = %llu\n", 1386 (u_longlong_t)ds->ds_fsid_guid); 1387 (void) printf("\t\tguid = %llu\n", 1388 (u_longlong_t)ds->ds_guid); 1389 (void) printf("\t\tflags = %llx\n", 1390 (u_longlong_t)ds->ds_flags); 1391 (void) printf("\t\tnext_clones_obj = %llu\n", 1392 (u_longlong_t)ds->ds_next_clones_obj); 1393 (void) printf("\t\tprops_obj = %llu\n", 1394 (u_longlong_t)ds->ds_props_obj); 1395 (void) printf("\t\tbp = %s\n", blkbuf); 1396 } 1397 1398 /* ARGSUSED */ 1399 static int 1400 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1401 { 1402 char blkbuf[BP_SPRINTF_LEN]; 1403 1404 if (bp->blk_birth != 0) { 1405 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 1406 (void) printf("\t%s\n", blkbuf); 1407 } 1408 return (0); 1409 } 1410 1411 static void 1412 dump_bptree(objset_t *os, uint64_t obj, char *name) 1413 { 1414 char bytes[32]; 1415 bptree_phys_t *bt; 1416 dmu_buf_t *db; 1417 1418 if (dump_opt['d'] < 3) 1419 return; 1420 1421 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 1422 bt = db->db_data; 1423 zdb_nicenum(bt->bt_bytes, bytes); 1424 (void) printf("\n %s: %llu datasets, %s\n", 1425 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 1426 dmu_buf_rele(db, FTAG); 1427 1428 if (dump_opt['d'] < 5) 1429 return; 1430 1431 (void) printf("\n"); 1432 1433 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 1434 } 1435 1436 /* ARGSUSED */ 1437 static int 1438 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1439 { 1440 char blkbuf[BP_SPRINTF_LEN]; 1441 1442 ASSERT(bp->blk_birth != 0); 1443 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1444 (void) printf("\t%s\n", blkbuf); 1445 return (0); 1446 } 1447 1448 static void 1449 dump_full_bpobj(bpobj_t *bpo, char *name, int indent) 1450 { 1451 char bytes[32]; 1452 char comp[32]; 1453 char uncomp[32]; 1454 1455 if (dump_opt['d'] < 3) 1456 return; 1457 1458 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes); 1459 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1460 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp); 1461 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp); 1462 (void) printf(" %*s: object %llu, %llu local blkptrs, " 1463 "%llu subobjs in object %llu, %s (%s/%s comp)\n", 1464 indent * 8, name, 1465 (u_longlong_t)bpo->bpo_object, 1466 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1467 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 1468 (u_longlong_t)bpo->bpo_phys->bpo_subobjs, 1469 bytes, comp, uncomp); 1470 1471 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1472 uint64_t subobj; 1473 bpobj_t subbpo; 1474 int error; 1475 VERIFY0(dmu_read(bpo->bpo_os, 1476 bpo->bpo_phys->bpo_subobjs, 1477 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1478 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1479 if (error != 0) { 1480 (void) printf("ERROR %u while trying to open " 1481 "subobj id %llu\n", 1482 error, (u_longlong_t)subobj); 1483 continue; 1484 } 1485 dump_full_bpobj(&subbpo, "subobj", indent + 1); 1486 bpobj_close(&subbpo); 1487 } 1488 } else { 1489 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", 1490 indent * 8, name, 1491 (u_longlong_t)bpo->bpo_object, 1492 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1493 bytes); 1494 } 1495 1496 if (dump_opt['d'] < 5) 1497 return; 1498 1499 1500 if (indent == 0) { 1501 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 1502 (void) printf("\n"); 1503 } 1504 } 1505 1506 static void 1507 dump_deadlist(dsl_deadlist_t *dl) 1508 { 1509 dsl_deadlist_entry_t *dle; 1510 uint64_t unused; 1511 char bytes[32]; 1512 char comp[32]; 1513 char uncomp[32]; 1514 1515 if (dump_opt['d'] < 3) 1516 return; 1517 1518 if (dl->dl_oldfmt) { 1519 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0); 1520 return; 1521 } 1522 1523 zdb_nicenum(dl->dl_phys->dl_used, bytes); 1524 zdb_nicenum(dl->dl_phys->dl_comp, comp); 1525 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp); 1526 (void) printf("\n Deadlist: %s (%s/%s comp)\n", 1527 bytes, comp, uncomp); 1528 1529 if (dump_opt['d'] < 4) 1530 return; 1531 1532 (void) printf("\n"); 1533 1534 /* force the tree to be loaded */ 1535 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); 1536 1537 for (dle = avl_first(&dl->dl_tree); dle; 1538 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1539 if (dump_opt['d'] >= 5) { 1540 char buf[128]; 1541 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ", 1542 (longlong_t)dle->dle_mintxg, 1543 (longlong_t)dle->dle_bpobj.bpo_object); 1544 1545 dump_full_bpobj(&dle->dle_bpobj, buf, 0); 1546 } else { 1547 (void) printf("mintxg %llu -> obj %llu\n", 1548 (longlong_t)dle->dle_mintxg, 1549 (longlong_t)dle->dle_bpobj.bpo_object); 1550 1551 } 1552 } 1553 } 1554 1555 static avl_tree_t idx_tree; 1556 static avl_tree_t domain_tree; 1557 static boolean_t fuid_table_loaded; 1558 static boolean_t sa_loaded; 1559 sa_attr_type_t *sa_attr_table; 1560 1561 static void 1562 fuid_table_destroy() 1563 { 1564 if (fuid_table_loaded) { 1565 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 1566 fuid_table_loaded = B_FALSE; 1567 } 1568 } 1569 1570 /* 1571 * print uid or gid information. 1572 * For normal POSIX id just the id is printed in decimal format. 1573 * For CIFS files with FUID the fuid is printed in hex followed by 1574 * the domain-rid string. 1575 */ 1576 static void 1577 print_idstr(uint64_t id, const char *id_type) 1578 { 1579 if (FUID_INDEX(id)) { 1580 char *domain; 1581 1582 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 1583 (void) printf("\t%s %llx [%s-%d]\n", id_type, 1584 (u_longlong_t)id, domain, (int)FUID_RID(id)); 1585 } else { 1586 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 1587 } 1588 1589 } 1590 1591 static void 1592 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 1593 { 1594 uint32_t uid_idx, gid_idx; 1595 1596 uid_idx = FUID_INDEX(uid); 1597 gid_idx = FUID_INDEX(gid); 1598 1599 /* Load domain table, if not already loaded */ 1600 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 1601 uint64_t fuid_obj; 1602 1603 /* first find the fuid object. It lives in the master node */ 1604 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 1605 8, 1, &fuid_obj) == 0); 1606 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 1607 (void) zfs_fuid_table_load(os, fuid_obj, 1608 &idx_tree, &domain_tree); 1609 fuid_table_loaded = B_TRUE; 1610 } 1611 1612 print_idstr(uid, "uid"); 1613 print_idstr(gid, "gid"); 1614 } 1615 1616 /*ARGSUSED*/ 1617 static void 1618 dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 1619 { 1620 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 1621 sa_handle_t *hdl; 1622 uint64_t xattr, rdev, gen; 1623 uint64_t uid, gid, mode, fsize, parent, links; 1624 uint64_t pflags; 1625 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 1626 time_t z_crtime, z_atime, z_mtime, z_ctime; 1627 sa_bulk_attr_t bulk[12]; 1628 int idx = 0; 1629 int error; 1630 1631 if (!sa_loaded) { 1632 uint64_t sa_attrs = 0; 1633 uint64_t version; 1634 1635 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR, 1636 8, 1, &version) == 0); 1637 if (version >= ZPL_VERSION_SA) { 1638 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 1639 8, 1, &sa_attrs) == 0); 1640 } 1641 if ((error = sa_setup(os, sa_attrs, zfs_attr_table, 1642 ZPL_END, &sa_attr_table)) != 0) { 1643 (void) printf("sa_setup failed errno %d, can't " 1644 "display znode contents\n", error); 1645 return; 1646 } 1647 sa_loaded = B_TRUE; 1648 } 1649 1650 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 1651 (void) printf("Failed to get handle for SA znode\n"); 1652 return; 1653 } 1654 1655 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 1656 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 1657 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 1658 &links, 8); 1659 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 1660 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 1661 &mode, 8); 1662 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 1663 NULL, &parent, 8); 1664 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 1665 &fsize, 8); 1666 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 1667 acctm, 16); 1668 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 1669 modtm, 16); 1670 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 1671 crtm, 16); 1672 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 1673 chgtm, 16); 1674 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 1675 &pflags, 8); 1676 1677 if (sa_bulk_lookup(hdl, bulk, idx)) { 1678 (void) sa_handle_destroy(hdl); 1679 return; 1680 } 1681 1682 error = zfs_obj_to_path(os, object, path, sizeof (path)); 1683 if (error != 0) { 1684 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>", 1685 (u_longlong_t)object); 1686 } 1687 if (dump_opt['d'] < 3) { 1688 (void) printf("\t%s\n", path); 1689 (void) sa_handle_destroy(hdl); 1690 return; 1691 } 1692 1693 z_crtime = (time_t)crtm[0]; 1694 z_atime = (time_t)acctm[0]; 1695 z_mtime = (time_t)modtm[0]; 1696 z_ctime = (time_t)chgtm[0]; 1697 1698 (void) printf("\tpath %s\n", path); 1699 dump_uidgid(os, uid, gid); 1700 (void) printf("\tatime %s", ctime(&z_atime)); 1701 (void) printf("\tmtime %s", ctime(&z_mtime)); 1702 (void) printf("\tctime %s", ctime(&z_ctime)); 1703 (void) printf("\tcrtime %s", ctime(&z_crtime)); 1704 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 1705 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 1706 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 1707 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 1708 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 1709 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 1710 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 1711 sizeof (uint64_t)) == 0) 1712 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 1713 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 1714 sizeof (uint64_t)) == 0) 1715 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 1716 sa_handle_destroy(hdl); 1717 } 1718 1719 /*ARGSUSED*/ 1720 static void 1721 dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 1722 { 1723 } 1724 1725 /*ARGSUSED*/ 1726 static void 1727 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 1728 { 1729 } 1730 1731 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 1732 dump_none, /* unallocated */ 1733 dump_zap, /* object directory */ 1734 dump_uint64, /* object array */ 1735 dump_none, /* packed nvlist */ 1736 dump_packed_nvlist, /* packed nvlist size */ 1737 dump_none, /* bpobj */ 1738 dump_bpobj, /* bpobj header */ 1739 dump_none, /* SPA space map header */ 1740 dump_none, /* SPA space map */ 1741 dump_none, /* ZIL intent log */ 1742 dump_dnode, /* DMU dnode */ 1743 dump_dmu_objset, /* DMU objset */ 1744 dump_dsl_dir, /* DSL directory */ 1745 dump_zap, /* DSL directory child map */ 1746 dump_zap, /* DSL dataset snap map */ 1747 dump_zap, /* DSL props */ 1748 dump_dsl_dataset, /* DSL dataset */ 1749 dump_znode, /* ZFS znode */ 1750 dump_acl, /* ZFS V0 ACL */ 1751 dump_uint8, /* ZFS plain file */ 1752 dump_zpldir, /* ZFS directory */ 1753 dump_zap, /* ZFS master node */ 1754 dump_zap, /* ZFS delete queue */ 1755 dump_uint8, /* zvol object */ 1756 dump_zap, /* zvol prop */ 1757 dump_uint8, /* other uint8[] */ 1758 dump_uint64, /* other uint64[] */ 1759 dump_zap, /* other ZAP */ 1760 dump_zap, /* persistent error log */ 1761 dump_uint8, /* SPA history */ 1762 dump_history_offsets, /* SPA history offsets */ 1763 dump_zap, /* Pool properties */ 1764 dump_zap, /* DSL permissions */ 1765 dump_acl, /* ZFS ACL */ 1766 dump_uint8, /* ZFS SYSACL */ 1767 dump_none, /* FUID nvlist */ 1768 dump_packed_nvlist, /* FUID nvlist size */ 1769 dump_zap, /* DSL dataset next clones */ 1770 dump_zap, /* DSL scrub queue */ 1771 dump_zap, /* ZFS user/group used */ 1772 dump_zap, /* ZFS user/group quota */ 1773 dump_zap, /* snapshot refcount tags */ 1774 dump_ddt_zap, /* DDT ZAP object */ 1775 dump_zap, /* DDT statistics */ 1776 dump_znode, /* SA object */ 1777 dump_zap, /* SA Master Node */ 1778 dump_sa_attrs, /* SA attribute registration */ 1779 dump_sa_layouts, /* SA attribute layouts */ 1780 dump_zap, /* DSL scrub translations */ 1781 dump_none, /* fake dedup BP */ 1782 dump_zap, /* deadlist */ 1783 dump_none, /* deadlist hdr */ 1784 dump_zap, /* dsl clones */ 1785 dump_bpobj_subobjs, /* bpobj subobjs */ 1786 dump_unknown, /* Unknown type, must be last */ 1787 }; 1788 1789 static void 1790 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1791 { 1792 dmu_buf_t *db = NULL; 1793 dmu_object_info_t doi; 1794 dnode_t *dn; 1795 void *bonus = NULL; 1796 size_t bsize = 0; 1797 char iblk[32], dblk[32], lsize[32], asize[32], fill[32]; 1798 char bonus_size[32]; 1799 char aux[50]; 1800 int error; 1801 1802 if (*print_header) { 1803 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n", 1804 "Object", "lvl", "iblk", "dblk", "dsize", "lsize", 1805 "%full", "type"); 1806 *print_header = 0; 1807 } 1808 1809 if (object == 0) { 1810 dn = DMU_META_DNODE(os); 1811 } else { 1812 error = dmu_bonus_hold(os, object, FTAG, &db); 1813 if (error) 1814 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1815 object, error); 1816 bonus = db->db_data; 1817 bsize = db->db_size; 1818 dn = DB_DNODE((dmu_buf_impl_t *)db); 1819 } 1820 dmu_object_info_from_dnode(dn, &doi); 1821 1822 zdb_nicenum(doi.doi_metadata_block_size, iblk); 1823 zdb_nicenum(doi.doi_data_block_size, dblk); 1824 zdb_nicenum(doi.doi_max_offset, lsize); 1825 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize); 1826 zdb_nicenum(doi.doi_bonus_size, bonus_size); 1827 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 1828 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 1829 doi.doi_max_offset); 1830 1831 aux[0] = '\0'; 1832 1833 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1834 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1835 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 1836 } 1837 1838 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1839 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1840 ZDB_COMPRESS_NAME(doi.doi_compress)); 1841 } 1842 1843 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n", 1844 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 1845 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 1846 1847 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1848 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n", 1849 "", "", "", "", "", bonus_size, "bonus", 1850 ZDB_OT_NAME(doi.doi_bonus_type)); 1851 } 1852 1853 if (verbosity >= 4) { 1854 (void) printf("\tdnode flags: %s%s%s\n", 1855 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 1856 "USED_BYTES " : "", 1857 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 1858 "USERUSED_ACCOUNTED " : "", 1859 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 1860 "SPILL_BLKPTR" : ""); 1861 (void) printf("\tdnode maxblkid: %llu\n", 1862 (longlong_t)dn->dn_phys->dn_maxblkid); 1863 1864 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, 1865 bonus, bsize); 1866 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); 1867 *print_header = 1; 1868 } 1869 1870 if (verbosity >= 5) 1871 dump_indirect(dn); 1872 1873 if (verbosity >= 5) { 1874 /* 1875 * Report the list of segments that comprise the object. 1876 */ 1877 uint64_t start = 0; 1878 uint64_t end; 1879 uint64_t blkfill = 1; 1880 int minlvl = 1; 1881 1882 if (dn->dn_type == DMU_OT_DNODE) { 1883 minlvl = 0; 1884 blkfill = DNODES_PER_BLOCK; 1885 } 1886 1887 for (;;) { 1888 char segsize[32]; 1889 error = dnode_next_offset(dn, 1890 0, &start, minlvl, blkfill, 0); 1891 if (error) 1892 break; 1893 end = start; 1894 error = dnode_next_offset(dn, 1895 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 1896 zdb_nicenum(end - start, segsize); 1897 (void) printf("\t\tsegment [%016llx, %016llx)" 1898 " size %5s\n", (u_longlong_t)start, 1899 (u_longlong_t)end, segsize); 1900 if (error) 1901 break; 1902 start = end; 1903 } 1904 } 1905 1906 if (db != NULL) 1907 dmu_buf_rele(db, FTAG); 1908 } 1909 1910 static char *objset_types[DMU_OST_NUMTYPES] = { 1911 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1912 1913 static void 1914 dump_dir(objset_t *os) 1915 { 1916 dmu_objset_stats_t dds; 1917 uint64_t object, object_count; 1918 uint64_t refdbytes, usedobjs, scratch; 1919 char numbuf[32]; 1920 char blkbuf[BP_SPRINTF_LEN + 20]; 1921 char osname[ZFS_MAX_DATASET_NAME_LEN]; 1922 char *type = "UNKNOWN"; 1923 int verbosity = dump_opt['d']; 1924 int print_header = 1; 1925 int i, error; 1926 1927 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 1928 dmu_objset_fast_stat(os, &dds); 1929 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 1930 1931 if (dds.dds_type < DMU_OST_NUMTYPES) 1932 type = objset_types[dds.dds_type]; 1933 1934 if (dds.dds_type == DMU_OST_META) { 1935 dds.dds_creation_txg = TXG_INITIAL; 1936 usedobjs = BP_GET_FILL(os->os_rootbp); 1937 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)-> 1938 dd_used_bytes; 1939 } else { 1940 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 1941 } 1942 1943 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp)); 1944 1945 zdb_nicenum(refdbytes, numbuf); 1946 1947 if (verbosity >= 4) { 1948 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp "); 1949 (void) snprintf_blkptr(blkbuf + strlen(blkbuf), 1950 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp); 1951 } else { 1952 blkbuf[0] = '\0'; 1953 } 1954 1955 dmu_objset_name(os, osname); 1956 1957 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 1958 "%s, %llu objects%s\n", 1959 osname, type, (u_longlong_t)dmu_objset_id(os), 1960 (u_longlong_t)dds.dds_creation_txg, 1961 numbuf, (u_longlong_t)usedobjs, blkbuf); 1962 1963 if (zopt_objects != 0) { 1964 for (i = 0; i < zopt_objects; i++) 1965 dump_object(os, zopt_object[i], verbosity, 1966 &print_header); 1967 (void) printf("\n"); 1968 return; 1969 } 1970 1971 if (dump_opt['i'] != 0 || verbosity >= 2) 1972 dump_intent_log(dmu_objset_zil(os)); 1973 1974 if (dmu_objset_ds(os) != NULL) 1975 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist); 1976 1977 if (verbosity < 2) 1978 return; 1979 1980 if (BP_IS_HOLE(os->os_rootbp)) 1981 return; 1982 1983 dump_object(os, 0, verbosity, &print_header); 1984 object_count = 0; 1985 if (DMU_USERUSED_DNODE(os) != NULL && 1986 DMU_USERUSED_DNODE(os)->dn_type != 0) { 1987 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 1988 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 1989 } 1990 1991 object = 0; 1992 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 1993 dump_object(os, object, verbosity, &print_header); 1994 object_count++; 1995 } 1996 1997 ASSERT3U(object_count, ==, usedobjs); 1998 1999 (void) printf("\n"); 2000 2001 if (error != ESRCH) { 2002 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 2003 abort(); 2004 } 2005 } 2006 2007 static void 2008 dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 2009 { 2010 time_t timestamp = ub->ub_timestamp; 2011 2012 (void) printf(header ? header : ""); 2013 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 2014 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 2015 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 2016 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 2017 (void) printf("\ttimestamp = %llu UTC = %s", 2018 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 2019 if (dump_opt['u'] >= 3) { 2020 char blkbuf[BP_SPRINTF_LEN]; 2021 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp); 2022 (void) printf("\trootbp = %s\n", blkbuf); 2023 } 2024 (void) printf(footer ? footer : ""); 2025 } 2026 2027 static void 2028 dump_config(spa_t *spa) 2029 { 2030 dmu_buf_t *db; 2031 size_t nvsize = 0; 2032 int error = 0; 2033 2034 2035 error = dmu_bonus_hold(spa->spa_meta_objset, 2036 spa->spa_config_object, FTAG, &db); 2037 2038 if (error == 0) { 2039 nvsize = *(uint64_t *)db->db_data; 2040 dmu_buf_rele(db, FTAG); 2041 2042 (void) printf("\nMOS Configuration:\n"); 2043 dump_packed_nvlist(spa->spa_meta_objset, 2044 spa->spa_config_object, (void *)&nvsize, 1); 2045 } else { 2046 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 2047 (u_longlong_t)spa->spa_config_object, error); 2048 } 2049 } 2050 2051 static void 2052 dump_cachefile(const char *cachefile) 2053 { 2054 int fd; 2055 struct stat64 statbuf; 2056 char *buf; 2057 nvlist_t *config; 2058 2059 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 2060 (void) printf("cannot open '%s': %s\n", cachefile, 2061 strerror(errno)); 2062 exit(1); 2063 } 2064 2065 if (fstat64(fd, &statbuf) != 0) { 2066 (void) printf("failed to stat '%s': %s\n", cachefile, 2067 strerror(errno)); 2068 exit(1); 2069 } 2070 2071 if ((buf = malloc(statbuf.st_size)) == NULL) { 2072 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 2073 (u_longlong_t)statbuf.st_size); 2074 exit(1); 2075 } 2076 2077 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 2078 (void) fprintf(stderr, "failed to read %llu bytes\n", 2079 (u_longlong_t)statbuf.st_size); 2080 exit(1); 2081 } 2082 2083 (void) close(fd); 2084 2085 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 2086 (void) fprintf(stderr, "failed to unpack nvlist\n"); 2087 exit(1); 2088 } 2089 2090 free(buf); 2091 2092 dump_nvlist(config, 0); 2093 2094 nvlist_free(config); 2095 } 2096 2097 #define ZDB_MAX_UB_HEADER_SIZE 32 2098 2099 static void 2100 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) 2101 { 2102 vdev_t vd; 2103 vdev_t *vdp = &vd; 2104 char header[ZDB_MAX_UB_HEADER_SIZE]; 2105 2106 vd.vdev_ashift = ashift; 2107 vdp->vdev_top = vdp; 2108 2109 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { 2110 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); 2111 uberblock_t *ub = (void *)((char *)lbl + uoff); 2112 2113 if (uberblock_verify(ub)) 2114 continue; 2115 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 2116 "Uberblock[%d]\n", i); 2117 dump_uberblock(ub, header, ""); 2118 } 2119 } 2120 2121 static void 2122 dump_label(const char *dev) 2123 { 2124 int fd; 2125 vdev_label_t label; 2126 char *path, *buf = label.vl_vdev_phys.vp_nvlist; 2127 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 2128 struct stat64 statbuf; 2129 uint64_t psize, ashift; 2130 int len = strlen(dev) + 1; 2131 2132 if (strncmp(dev, "/dev/dsk/", 9) == 0) { 2133 len++; 2134 path = malloc(len); 2135 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9); 2136 } else { 2137 path = strdup(dev); 2138 } 2139 2140 if ((fd = open64(path, O_RDONLY)) < 0) { 2141 (void) printf("cannot open '%s': %s\n", path, strerror(errno)); 2142 free(path); 2143 exit(1); 2144 } 2145 2146 if (fstat64(fd, &statbuf) != 0) { 2147 (void) printf("failed to stat '%s': %s\n", path, 2148 strerror(errno)); 2149 free(path); 2150 (void) close(fd); 2151 exit(1); 2152 } 2153 2154 if (S_ISBLK(statbuf.st_mode)) { 2155 (void) printf("cannot use '%s': character device required\n", 2156 path); 2157 free(path); 2158 (void) close(fd); 2159 exit(1); 2160 } 2161 2162 psize = statbuf.st_size; 2163 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 2164 2165 for (int l = 0; l < VDEV_LABELS; l++) { 2166 nvlist_t *config = NULL; 2167 2168 (void) printf("--------------------------------------------\n"); 2169 (void) printf("LABEL %d\n", l); 2170 (void) printf("--------------------------------------------\n"); 2171 2172 if (pread64(fd, &label, sizeof (label), 2173 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 2174 (void) printf("failed to read label %d\n", l); 2175 continue; 2176 } 2177 2178 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 2179 (void) printf("failed to unpack label %d\n", l); 2180 ashift = SPA_MINBLOCKSHIFT; 2181 } else { 2182 nvlist_t *vdev_tree = NULL; 2183 2184 dump_nvlist(config, 4); 2185 if ((nvlist_lookup_nvlist(config, 2186 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 2187 (nvlist_lookup_uint64(vdev_tree, 2188 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 2189 ashift = SPA_MINBLOCKSHIFT; 2190 nvlist_free(config); 2191 } 2192 if (dump_opt['u']) 2193 dump_label_uberblocks(&label, ashift); 2194 } 2195 2196 free(path); 2197 (void) close(fd); 2198 } 2199 2200 static uint64_t dataset_feature_count[SPA_FEATURES]; 2201 2202 /*ARGSUSED*/ 2203 static int 2204 dump_one_dir(const char *dsname, void *arg) 2205 { 2206 int error; 2207 objset_t *os; 2208 2209 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os); 2210 if (error) { 2211 (void) printf("Could not open %s, error %d\n", dsname, error); 2212 return (0); 2213 } 2214 2215 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) { 2216 if (!dmu_objset_ds(os)->ds_feature_inuse[f]) 2217 continue; 2218 ASSERT(spa_feature_table[f].fi_flags & 2219 ZFEATURE_FLAG_PER_DATASET); 2220 dataset_feature_count[f]++; 2221 } 2222 2223 dump_dir(os); 2224 dmu_objset_disown(os, FTAG); 2225 fuid_table_destroy(); 2226 sa_loaded = B_FALSE; 2227 return (0); 2228 } 2229 2230 /* 2231 * Block statistics. 2232 */ 2233 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2) 2234 typedef struct zdb_blkstats { 2235 uint64_t zb_asize; 2236 uint64_t zb_lsize; 2237 uint64_t zb_psize; 2238 uint64_t zb_count; 2239 uint64_t zb_gangs; 2240 uint64_t zb_ditto_samevdev; 2241 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 2242 } zdb_blkstats_t; 2243 2244 /* 2245 * Extended object types to report deferred frees and dedup auto-ditto blocks. 2246 */ 2247 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 2248 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 2249 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 2250 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 2251 2252 static char *zdb_ot_extname[] = { 2253 "deferred free", 2254 "dedup ditto", 2255 "other", 2256 "Total", 2257 }; 2258 2259 #define ZB_TOTAL DN_MAX_LEVELS 2260 2261 typedef struct zdb_cb { 2262 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 2263 uint64_t zcb_dedup_asize; 2264 uint64_t zcb_dedup_blocks; 2265 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES]; 2266 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES] 2267 [BPE_PAYLOAD_SIZE]; 2268 uint64_t zcb_start; 2269 uint64_t zcb_lastprint; 2270 uint64_t zcb_totalasize; 2271 uint64_t zcb_errors[256]; 2272 int zcb_readfails; 2273 int zcb_haderrors; 2274 spa_t *zcb_spa; 2275 } zdb_cb_t; 2276 2277 static void 2278 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 2279 dmu_object_type_t type) 2280 { 2281 uint64_t refcnt = 0; 2282 2283 ASSERT(type < ZDB_OT_TOTAL); 2284 2285 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 2286 return; 2287 2288 for (int i = 0; i < 4; i++) { 2289 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 2290 int t = (i & 1) ? type : ZDB_OT_TOTAL; 2291 int equal; 2292 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 2293 2294 zb->zb_asize += BP_GET_ASIZE(bp); 2295 zb->zb_lsize += BP_GET_LSIZE(bp); 2296 zb->zb_psize += BP_GET_PSIZE(bp); 2297 zb->zb_count++; 2298 2299 /* 2300 * The histogram is only big enough to record blocks up to 2301 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last, 2302 * "other", bucket. 2303 */ 2304 int idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT; 2305 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1); 2306 zb->zb_psize_histogram[idx]++; 2307 2308 zb->zb_gangs += BP_COUNT_GANG(bp); 2309 2310 switch (BP_GET_NDVAS(bp)) { 2311 case 2: 2312 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 2313 DVA_GET_VDEV(&bp->blk_dva[1])) 2314 zb->zb_ditto_samevdev++; 2315 break; 2316 case 3: 2317 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == 2318 DVA_GET_VDEV(&bp->blk_dva[1])) + 2319 (DVA_GET_VDEV(&bp->blk_dva[0]) == 2320 DVA_GET_VDEV(&bp->blk_dva[2])) + 2321 (DVA_GET_VDEV(&bp->blk_dva[1]) == 2322 DVA_GET_VDEV(&bp->blk_dva[2])); 2323 if (equal != 0) 2324 zb->zb_ditto_samevdev++; 2325 break; 2326 } 2327 2328 } 2329 2330 if (BP_IS_EMBEDDED(bp)) { 2331 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++; 2332 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)] 2333 [BPE_GET_PSIZE(bp)]++; 2334 return; 2335 } 2336 2337 if (dump_opt['L']) 2338 return; 2339 2340 if (BP_GET_DEDUP(bp)) { 2341 ddt_t *ddt; 2342 ddt_entry_t *dde; 2343 2344 ddt = ddt_select(zcb->zcb_spa, bp); 2345 ddt_enter(ddt); 2346 dde = ddt_lookup(ddt, bp, B_FALSE); 2347 2348 if (dde == NULL) { 2349 refcnt = 0; 2350 } else { 2351 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 2352 ddt_phys_decref(ddp); 2353 refcnt = ddp->ddp_refcnt; 2354 if (ddt_phys_total_refcnt(dde) == 0) 2355 ddt_remove(ddt, dde); 2356 } 2357 ddt_exit(ddt); 2358 } 2359 2360 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 2361 refcnt ? 0 : spa_first_txg(zcb->zcb_spa), 2362 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 2363 } 2364 2365 static void 2366 zdb_blkptr_done(zio_t *zio) 2367 { 2368 spa_t *spa = zio->io_spa; 2369 blkptr_t *bp = zio->io_bp; 2370 int ioerr = zio->io_error; 2371 zdb_cb_t *zcb = zio->io_private; 2372 zbookmark_phys_t *zb = &zio->io_bookmark; 2373 2374 zio_data_buf_free(zio->io_data, zio->io_size); 2375 2376 mutex_enter(&spa->spa_scrub_lock); 2377 spa->spa_scrub_inflight--; 2378 cv_broadcast(&spa->spa_scrub_io_cv); 2379 2380 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 2381 char blkbuf[BP_SPRINTF_LEN]; 2382 2383 zcb->zcb_haderrors = 1; 2384 zcb->zcb_errors[ioerr]++; 2385 2386 if (dump_opt['b'] >= 2) 2387 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2388 else 2389 blkbuf[0] = '\0'; 2390 2391 (void) printf("zdb_blkptr_cb: " 2392 "Got error %d reading " 2393 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 2394 ioerr, 2395 (u_longlong_t)zb->zb_objset, 2396 (u_longlong_t)zb->zb_object, 2397 (u_longlong_t)zb->zb_level, 2398 (u_longlong_t)zb->zb_blkid, 2399 blkbuf); 2400 } 2401 mutex_exit(&spa->spa_scrub_lock); 2402 } 2403 2404 static int 2405 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2406 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 2407 { 2408 zdb_cb_t *zcb = arg; 2409 dmu_object_type_t type; 2410 boolean_t is_metadata; 2411 2412 if (bp == NULL) 2413 return (0); 2414 2415 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) { 2416 char blkbuf[BP_SPRINTF_LEN]; 2417 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2418 (void) printf("objset %llu object %llu " 2419 "level %lld offset 0x%llx %s\n", 2420 (u_longlong_t)zb->zb_objset, 2421 (u_longlong_t)zb->zb_object, 2422 (longlong_t)zb->zb_level, 2423 (u_longlong_t)blkid2offset(dnp, bp, zb), 2424 blkbuf); 2425 } 2426 2427 if (BP_IS_HOLE(bp)) 2428 return (0); 2429 2430 type = BP_GET_TYPE(bp); 2431 2432 zdb_count_block(zcb, zilog, bp, 2433 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 2434 2435 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 2436 2437 if (!BP_IS_EMBEDDED(bp) && 2438 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) { 2439 size_t size = BP_GET_PSIZE(bp); 2440 void *data = zio_data_buf_alloc(size); 2441 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 2442 2443 /* If it's an intent log block, failure is expected. */ 2444 if (zb->zb_level == ZB_ZIL_LEVEL) 2445 flags |= ZIO_FLAG_SPECULATIVE; 2446 2447 mutex_enter(&spa->spa_scrub_lock); 2448 while (spa->spa_scrub_inflight > max_inflight) 2449 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 2450 spa->spa_scrub_inflight++; 2451 mutex_exit(&spa->spa_scrub_lock); 2452 2453 zio_nowait(zio_read(NULL, spa, bp, data, size, 2454 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 2455 } 2456 2457 zcb->zcb_readfails = 0; 2458 2459 /* only call gethrtime() every 100 blocks */ 2460 static int iters; 2461 if (++iters > 100) 2462 iters = 0; 2463 else 2464 return (0); 2465 2466 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) { 2467 uint64_t now = gethrtime(); 2468 char buf[10]; 2469 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 2470 int kb_per_sec = 2471 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 2472 int sec_remaining = 2473 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 2474 2475 zfs_nicenum(bytes, buf, sizeof (buf)); 2476 (void) fprintf(stderr, 2477 "\r%5s completed (%4dMB/s) " 2478 "estimated time remaining: %uhr %02umin %02usec ", 2479 buf, kb_per_sec / 1024, 2480 sec_remaining / 60 / 60, 2481 sec_remaining / 60 % 60, 2482 sec_remaining % 60); 2483 2484 zcb->zcb_lastprint = now; 2485 } 2486 2487 return (0); 2488 } 2489 2490 static void 2491 zdb_leak(void *arg, uint64_t start, uint64_t size) 2492 { 2493 vdev_t *vd = arg; 2494 2495 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 2496 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 2497 } 2498 2499 static metaslab_ops_t zdb_metaslab_ops = { 2500 NULL /* alloc */ 2501 }; 2502 2503 static void 2504 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 2505 { 2506 ddt_bookmark_t ddb = { 0 }; 2507 ddt_entry_t dde; 2508 int error; 2509 2510 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 2511 blkptr_t blk; 2512 ddt_phys_t *ddp = dde.dde_phys; 2513 2514 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 2515 return; 2516 2517 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 2518 2519 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 2520 if (ddp->ddp_phys_birth == 0) 2521 continue; 2522 ddt_bp_create(ddb.ddb_checksum, 2523 &dde.dde_key, ddp, &blk); 2524 if (p == DDT_PHYS_DITTO) { 2525 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 2526 } else { 2527 zcb->zcb_dedup_asize += 2528 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 2529 zcb->zcb_dedup_blocks++; 2530 } 2531 } 2532 if (!dump_opt['L']) { 2533 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 2534 ddt_enter(ddt); 2535 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 2536 ddt_exit(ddt); 2537 } 2538 } 2539 2540 ASSERT(error == ENOENT); 2541 } 2542 2543 static void 2544 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 2545 { 2546 zcb->zcb_spa = spa; 2547 2548 if (!dump_opt['L']) { 2549 vdev_t *rvd = spa->spa_root_vdev; 2550 for (uint64_t c = 0; c < rvd->vdev_children; c++) { 2551 vdev_t *vd = rvd->vdev_child[c]; 2552 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 2553 metaslab_t *msp = vd->vdev_ms[m]; 2554 mutex_enter(&msp->ms_lock); 2555 metaslab_unload(msp); 2556 2557 /* 2558 * For leak detection, we overload the metaslab 2559 * ms_tree to contain allocated segments 2560 * instead of free segments. As a result, 2561 * we can't use the normal metaslab_load/unload 2562 * interfaces. 2563 */ 2564 if (msp->ms_sm != NULL) { 2565 (void) fprintf(stderr, 2566 "\rloading space map for " 2567 "vdev %llu of %llu, " 2568 "metaslab %llu of %llu ...", 2569 (longlong_t)c, 2570 (longlong_t)rvd->vdev_children, 2571 (longlong_t)m, 2572 (longlong_t)vd->vdev_ms_count); 2573 2574 msp->ms_ops = &zdb_metaslab_ops; 2575 2576 /* 2577 * We don't want to spend the CPU 2578 * manipulating the size-ordered 2579 * tree, so clear the range_tree 2580 * ops. 2581 */ 2582 msp->ms_tree->rt_ops = NULL; 2583 VERIFY0(space_map_load(msp->ms_sm, 2584 msp->ms_tree, SM_ALLOC)); 2585 msp->ms_loaded = B_TRUE; 2586 } 2587 mutex_exit(&msp->ms_lock); 2588 } 2589 } 2590 (void) fprintf(stderr, "\n"); 2591 } 2592 2593 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2594 2595 zdb_ddt_leak_init(spa, zcb); 2596 2597 spa_config_exit(spa, SCL_CONFIG, FTAG); 2598 } 2599 2600 static void 2601 zdb_leak_fini(spa_t *spa) 2602 { 2603 if (!dump_opt['L']) { 2604 vdev_t *rvd = spa->spa_root_vdev; 2605 for (int c = 0; c < rvd->vdev_children; c++) { 2606 vdev_t *vd = rvd->vdev_child[c]; 2607 for (int m = 0; m < vd->vdev_ms_count; m++) { 2608 metaslab_t *msp = vd->vdev_ms[m]; 2609 mutex_enter(&msp->ms_lock); 2610 2611 /* 2612 * The ms_tree has been overloaded to 2613 * contain allocated segments. Now that we 2614 * finished traversing all blocks, any 2615 * block that remains in the ms_tree 2616 * represents an allocated block that we 2617 * did not claim during the traversal. 2618 * Claimed blocks would have been removed 2619 * from the ms_tree. 2620 */ 2621 range_tree_vacate(msp->ms_tree, zdb_leak, vd); 2622 msp->ms_loaded = B_FALSE; 2623 2624 mutex_exit(&msp->ms_lock); 2625 } 2626 } 2627 } 2628 } 2629 2630 /* ARGSUSED */ 2631 static int 2632 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 2633 { 2634 zdb_cb_t *zcb = arg; 2635 2636 if (dump_opt['b'] >= 5) { 2637 char blkbuf[BP_SPRINTF_LEN]; 2638 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2639 (void) printf("[%s] %s\n", 2640 "deferred free", blkbuf); 2641 } 2642 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 2643 return (0); 2644 } 2645 2646 static int 2647 dump_block_stats(spa_t *spa) 2648 { 2649 zdb_cb_t zcb = { 0 }; 2650 zdb_blkstats_t *zb, *tzb; 2651 uint64_t norm_alloc, norm_space, total_alloc, total_found; 2652 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; 2653 boolean_t leaks = B_FALSE; 2654 2655 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 2656 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 2657 (dump_opt['c'] == 1) ? "metadata " : "", 2658 dump_opt['c'] ? "checksums " : "", 2659 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 2660 !dump_opt['L'] ? "nothing leaked " : ""); 2661 2662 /* 2663 * Load all space maps as SM_ALLOC maps, then traverse the pool 2664 * claiming each block we discover. If the pool is perfectly 2665 * consistent, the space maps will be empty when we're done. 2666 * Anything left over is a leak; any block we can't claim (because 2667 * it's not part of any space map) is a double allocation, 2668 * reference to a freed block, or an unclaimed log block. 2669 */ 2670 zdb_leak_init(spa, &zcb); 2671 2672 /* 2673 * If there's a deferred-free bplist, process that first. 2674 */ 2675 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 2676 count_block_cb, &zcb, NULL); 2677 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2678 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 2679 count_block_cb, &zcb, NULL); 2680 } 2681 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 2682 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 2683 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 2684 &zcb, NULL)); 2685 } 2686 2687 if (dump_opt['c'] > 1) 2688 flags |= TRAVERSE_PREFETCH_DATA; 2689 2690 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 2691 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 2692 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 2693 2694 /* 2695 * If we've traversed the data blocks then we need to wait for those 2696 * I/Os to complete. We leverage "The Godfather" zio to wait on 2697 * all async I/Os to complete. 2698 */ 2699 if (dump_opt['c']) { 2700 for (int i = 0; i < max_ncpus; i++) { 2701 (void) zio_wait(spa->spa_async_zio_root[i]); 2702 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL, 2703 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 2704 ZIO_FLAG_GODFATHER); 2705 } 2706 } 2707 2708 if (zcb.zcb_haderrors) { 2709 (void) printf("\nError counts:\n\n"); 2710 (void) printf("\t%5s %s\n", "errno", "count"); 2711 for (int e = 0; e < 256; e++) { 2712 if (zcb.zcb_errors[e] != 0) { 2713 (void) printf("\t%5d %llu\n", 2714 e, (u_longlong_t)zcb.zcb_errors[e]); 2715 } 2716 } 2717 } 2718 2719 /* 2720 * Report any leaked segments. 2721 */ 2722 zdb_leak_fini(spa); 2723 2724 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 2725 2726 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 2727 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 2728 2729 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); 2730 total_found = tzb->zb_asize - zcb.zcb_dedup_asize; 2731 2732 if (total_found == total_alloc) { 2733 if (!dump_opt['L']) 2734 (void) printf("\n\tNo leaks (block sum matches space" 2735 " maps exactly)\n"); 2736 } else { 2737 (void) printf("block traversal size %llu != alloc %llu " 2738 "(%s %lld)\n", 2739 (u_longlong_t)total_found, 2740 (u_longlong_t)total_alloc, 2741 (dump_opt['L']) ? "unreachable" : "leaked", 2742 (longlong_t)(total_alloc - total_found)); 2743 leaks = B_TRUE; 2744 } 2745 2746 if (tzb->zb_count == 0) 2747 return (2); 2748 2749 (void) printf("\n"); 2750 (void) printf("\tbp count: %10llu\n", 2751 (u_longlong_t)tzb->zb_count); 2752 (void) printf("\tganged count: %10llu\n", 2753 (longlong_t)tzb->zb_gangs); 2754 (void) printf("\tbp logical: %10llu avg: %6llu\n", 2755 (u_longlong_t)tzb->zb_lsize, 2756 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 2757 (void) printf("\tbp physical: %10llu avg:" 2758 " %6llu compression: %6.2f\n", 2759 (u_longlong_t)tzb->zb_psize, 2760 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 2761 (double)tzb->zb_lsize / tzb->zb_psize); 2762 (void) printf("\tbp allocated: %10llu avg:" 2763 " %6llu compression: %6.2f\n", 2764 (u_longlong_t)tzb->zb_asize, 2765 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 2766 (double)tzb->zb_lsize / tzb->zb_asize); 2767 (void) printf("\tbp deduped: %10llu ref>1:" 2768 " %6llu deduplication: %6.2f\n", 2769 (u_longlong_t)zcb.zcb_dedup_asize, 2770 (u_longlong_t)zcb.zcb_dedup_blocks, 2771 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 2772 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", 2773 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 2774 2775 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) { 2776 if (zcb.zcb_embedded_blocks[i] == 0) 2777 continue; 2778 (void) printf("\n"); 2779 (void) printf("\tadditional, non-pointer bps of type %u: " 2780 "%10llu\n", 2781 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]); 2782 2783 if (dump_opt['b'] >= 3) { 2784 (void) printf("\t number of (compressed) bytes: " 2785 "number of bps\n"); 2786 dump_histogram(zcb.zcb_embedded_histogram[i], 2787 sizeof (zcb.zcb_embedded_histogram[i]) / 2788 sizeof (zcb.zcb_embedded_histogram[i][0]), 0); 2789 } 2790 } 2791 2792 if (tzb->zb_ditto_samevdev != 0) { 2793 (void) printf("\tDittoed blocks on same vdev: %llu\n", 2794 (longlong_t)tzb->zb_ditto_samevdev); 2795 } 2796 2797 if (dump_opt['b'] >= 2) { 2798 int l, t, level; 2799 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 2800 "\t avg\t comp\t%%Total\tType\n"); 2801 2802 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 2803 char csize[32], lsize[32], psize[32], asize[32]; 2804 char avg[32], gang[32]; 2805 char *typename; 2806 2807 if (t < DMU_OT_NUMTYPES) 2808 typename = dmu_ot[t].ot_name; 2809 else 2810 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 2811 2812 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 2813 (void) printf("%6s\t%5s\t%5s\t%5s" 2814 "\t%5s\t%5s\t%6s\t%s\n", 2815 "-", 2816 "-", 2817 "-", 2818 "-", 2819 "-", 2820 "-", 2821 "-", 2822 typename); 2823 continue; 2824 } 2825 2826 for (l = ZB_TOTAL - 1; l >= -1; l--) { 2827 level = (l == -1 ? ZB_TOTAL : l); 2828 zb = &zcb.zcb_type[level][t]; 2829 2830 if (zb->zb_asize == 0) 2831 continue; 2832 2833 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 2834 continue; 2835 2836 if (level == 0 && zb->zb_asize == 2837 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 2838 continue; 2839 2840 zdb_nicenum(zb->zb_count, csize); 2841 zdb_nicenum(zb->zb_lsize, lsize); 2842 zdb_nicenum(zb->zb_psize, psize); 2843 zdb_nicenum(zb->zb_asize, asize); 2844 zdb_nicenum(zb->zb_asize / zb->zb_count, avg); 2845 zdb_nicenum(zb->zb_gangs, gang); 2846 2847 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 2848 "\t%5.2f\t%6.2f\t", 2849 csize, lsize, psize, asize, avg, 2850 (double)zb->zb_lsize / zb->zb_psize, 2851 100.0 * zb->zb_asize / tzb->zb_asize); 2852 2853 if (level == ZB_TOTAL) 2854 (void) printf("%s\n", typename); 2855 else 2856 (void) printf(" L%d %s\n", 2857 level, typename); 2858 2859 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { 2860 (void) printf("\t number of ganged " 2861 "blocks: %s\n", gang); 2862 } 2863 2864 if (dump_opt['b'] >= 4) { 2865 (void) printf("psize " 2866 "(in 512-byte sectors): " 2867 "number of blocks\n"); 2868 dump_histogram(zb->zb_psize_histogram, 2869 PSIZE_HISTO_SIZE, 0); 2870 } 2871 } 2872 } 2873 } 2874 2875 (void) printf("\n"); 2876 2877 if (leaks) 2878 return (2); 2879 2880 if (zcb.zcb_haderrors) 2881 return (3); 2882 2883 return (0); 2884 } 2885 2886 typedef struct zdb_ddt_entry { 2887 ddt_key_t zdde_key; 2888 uint64_t zdde_ref_blocks; 2889 uint64_t zdde_ref_lsize; 2890 uint64_t zdde_ref_psize; 2891 uint64_t zdde_ref_dsize; 2892 avl_node_t zdde_node; 2893 } zdb_ddt_entry_t; 2894 2895 /* ARGSUSED */ 2896 static int 2897 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2898 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 2899 { 2900 avl_tree_t *t = arg; 2901 avl_index_t where; 2902 zdb_ddt_entry_t *zdde, zdde_search; 2903 2904 if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp)) 2905 return (0); 2906 2907 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 2908 (void) printf("traversing objset %llu, %llu objects, " 2909 "%lu blocks so far\n", 2910 (u_longlong_t)zb->zb_objset, 2911 (u_longlong_t)BP_GET_FILL(bp), 2912 avl_numnodes(t)); 2913 } 2914 2915 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 2916 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 2917 return (0); 2918 2919 ddt_key_fill(&zdde_search.zdde_key, bp); 2920 2921 zdde = avl_find(t, &zdde_search, &where); 2922 2923 if (zdde == NULL) { 2924 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 2925 zdde->zdde_key = zdde_search.zdde_key; 2926 avl_insert(t, zdde, where); 2927 } 2928 2929 zdde->zdde_ref_blocks += 1; 2930 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 2931 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 2932 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 2933 2934 return (0); 2935 } 2936 2937 static void 2938 dump_simulated_ddt(spa_t *spa) 2939 { 2940 avl_tree_t t; 2941 void *cookie = NULL; 2942 zdb_ddt_entry_t *zdde; 2943 ddt_histogram_t ddh_total = { 0 }; 2944 ddt_stat_t dds_total = { 0 }; 2945 2946 avl_create(&t, ddt_entry_compare, 2947 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 2948 2949 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2950 2951 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, 2952 zdb_ddt_add_cb, &t); 2953 2954 spa_config_exit(spa, SCL_CONFIG, FTAG); 2955 2956 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 2957 ddt_stat_t dds; 2958 uint64_t refcnt = zdde->zdde_ref_blocks; 2959 ASSERT(refcnt != 0); 2960 2961 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 2962 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 2963 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 2964 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 2965 2966 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 2967 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 2968 dds.dds_ref_psize = zdde->zdde_ref_psize; 2969 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 2970 2971 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1], 2972 &dds, 0); 2973 2974 umem_free(zdde, sizeof (*zdde)); 2975 } 2976 2977 avl_destroy(&t); 2978 2979 ddt_histogram_stat(&dds_total, &ddh_total); 2980 2981 (void) printf("Simulated DDT histogram:\n"); 2982 2983 zpool_dump_ddt(&dds_total, &ddh_total); 2984 2985 dump_dedup_ratio(&dds_total); 2986 } 2987 2988 static void 2989 dump_zpool(spa_t *spa) 2990 { 2991 dsl_pool_t *dp = spa_get_dsl(spa); 2992 int rc = 0; 2993 2994 if (dump_opt['S']) { 2995 dump_simulated_ddt(spa); 2996 return; 2997 } 2998 2999 if (!dump_opt['e'] && dump_opt['C'] > 1) { 3000 (void) printf("\nCached configuration:\n"); 3001 dump_nvlist(spa->spa_config, 8); 3002 } 3003 3004 if (dump_opt['C']) 3005 dump_config(spa); 3006 3007 if (dump_opt['u']) 3008 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 3009 3010 if (dump_opt['D']) 3011 dump_all_ddts(spa); 3012 3013 if (dump_opt['d'] > 2 || dump_opt['m']) 3014 dump_metaslabs(spa); 3015 if (dump_opt['M']) 3016 dump_metaslab_groups(spa); 3017 3018 if (dump_opt['d'] || dump_opt['i']) { 3019 dump_dir(dp->dp_meta_objset); 3020 if (dump_opt['d'] >= 3) { 3021 dump_full_bpobj(&spa->spa_deferred_bpobj, 3022 "Deferred frees", 0); 3023 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 3024 dump_full_bpobj( 3025 &spa->spa_dsl_pool->dp_free_bpobj, 3026 "Pool snapshot frees", 0); 3027 } 3028 3029 if (spa_feature_is_active(spa, 3030 SPA_FEATURE_ASYNC_DESTROY)) { 3031 dump_bptree(spa->spa_meta_objset, 3032 spa->spa_dsl_pool->dp_bptree_obj, 3033 "Pool dataset frees"); 3034 } 3035 dump_dtl(spa->spa_root_vdev, 0); 3036 } 3037 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 3038 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 3039 3040 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) { 3041 uint64_t refcount; 3042 3043 if (!(spa_feature_table[f].fi_flags & 3044 ZFEATURE_FLAG_PER_DATASET)) { 3045 ASSERT0(dataset_feature_count[f]); 3046 continue; 3047 } 3048 (void) feature_get_refcount(spa, 3049 &spa_feature_table[f], &refcount); 3050 if (dataset_feature_count[f] != refcount) { 3051 (void) printf("%s feature refcount mismatch: " 3052 "%lld datasets != %lld refcount\n", 3053 spa_feature_table[f].fi_uname, 3054 (longlong_t)dataset_feature_count[f], 3055 (longlong_t)refcount); 3056 rc = 2; 3057 } else { 3058 (void) printf("Verified %s feature refcount " 3059 "of %llu is correct\n", 3060 spa_feature_table[f].fi_uname, 3061 (longlong_t)refcount); 3062 } 3063 } 3064 } 3065 if (rc == 0 && (dump_opt['b'] || dump_opt['c'])) 3066 rc = dump_block_stats(spa); 3067 3068 if (rc == 0) 3069 rc = verify_spacemap_refcounts(spa); 3070 3071 if (dump_opt['s']) 3072 show_pool_stats(spa); 3073 3074 if (dump_opt['h']) 3075 dump_history(spa); 3076 3077 if (rc != 0) 3078 exit(rc); 3079 } 3080 3081 #define ZDB_FLAG_CHECKSUM 0x0001 3082 #define ZDB_FLAG_DECOMPRESS 0x0002 3083 #define ZDB_FLAG_BSWAP 0x0004 3084 #define ZDB_FLAG_GBH 0x0008 3085 #define ZDB_FLAG_INDIRECT 0x0010 3086 #define ZDB_FLAG_PHYS 0x0020 3087 #define ZDB_FLAG_RAW 0x0040 3088 #define ZDB_FLAG_PRINT_BLKPTR 0x0080 3089 3090 int flagbits[256]; 3091 3092 static void 3093 zdb_print_blkptr(blkptr_t *bp, int flags) 3094 { 3095 char blkbuf[BP_SPRINTF_LEN]; 3096 3097 if (flags & ZDB_FLAG_BSWAP) 3098 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 3099 3100 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 3101 (void) printf("%s\n", blkbuf); 3102 } 3103 3104 static void 3105 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 3106 { 3107 int i; 3108 3109 for (i = 0; i < nbps; i++) 3110 zdb_print_blkptr(&bp[i], flags); 3111 } 3112 3113 static void 3114 zdb_dump_gbh(void *buf, int flags) 3115 { 3116 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 3117 } 3118 3119 static void 3120 zdb_dump_block_raw(void *buf, uint64_t size, int flags) 3121 { 3122 if (flags & ZDB_FLAG_BSWAP) 3123 byteswap_uint64_array(buf, size); 3124 (void) write(1, buf, size); 3125 } 3126 3127 static void 3128 zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 3129 { 3130 uint64_t *d = (uint64_t *)buf; 3131 int nwords = size / sizeof (uint64_t); 3132 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 3133 int i, j; 3134 char *hdr, *c; 3135 3136 3137 if (do_bswap) 3138 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 3139 else 3140 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 3141 3142 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 3143 3144 for (i = 0; i < nwords; i += 2) { 3145 (void) printf("%06llx: %016llx %016llx ", 3146 (u_longlong_t)(i * sizeof (uint64_t)), 3147 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 3148 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 3149 3150 c = (char *)&d[i]; 3151 for (j = 0; j < 2 * sizeof (uint64_t); j++) 3152 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 3153 (void) printf("\n"); 3154 } 3155 } 3156 3157 /* 3158 * There are two acceptable formats: 3159 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 3160 * child[.child]* - For example: 0.1.1 3161 * 3162 * The second form can be used to specify arbitrary vdevs anywhere 3163 * in the heirarchy. For example, in a pool with a mirror of 3164 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 3165 */ 3166 static vdev_t * 3167 zdb_vdev_lookup(vdev_t *vdev, char *path) 3168 { 3169 char *s, *p, *q; 3170 int i; 3171 3172 if (vdev == NULL) 3173 return (NULL); 3174 3175 /* First, assume the x.x.x.x format */ 3176 i = (int)strtoul(path, &s, 10); 3177 if (s == path || (s && *s != '.' && *s != '\0')) 3178 goto name; 3179 if (i < 0 || i >= vdev->vdev_children) 3180 return (NULL); 3181 3182 vdev = vdev->vdev_child[i]; 3183 if (*s == '\0') 3184 return (vdev); 3185 return (zdb_vdev_lookup(vdev, s+1)); 3186 3187 name: 3188 for (i = 0; i < vdev->vdev_children; i++) { 3189 vdev_t *vc = vdev->vdev_child[i]; 3190 3191 if (vc->vdev_path == NULL) { 3192 vc = zdb_vdev_lookup(vc, path); 3193 if (vc == NULL) 3194 continue; 3195 else 3196 return (vc); 3197 } 3198 3199 p = strrchr(vc->vdev_path, '/'); 3200 p = p ? p + 1 : vc->vdev_path; 3201 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 3202 3203 if (strcmp(vc->vdev_path, path) == 0) 3204 return (vc); 3205 if (strcmp(p, path) == 0) 3206 return (vc); 3207 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 3208 return (vc); 3209 } 3210 3211 return (NULL); 3212 } 3213 3214 /* 3215 * Read a block from a pool and print it out. The syntax of the 3216 * block descriptor is: 3217 * 3218 * pool:vdev_specifier:offset:size[:flags] 3219 * 3220 * pool - The name of the pool you wish to read from 3221 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 3222 * offset - offset, in hex, in bytes 3223 * size - Amount of data to read, in hex, in bytes 3224 * flags - A string of characters specifying options 3225 * b: Decode a blkptr at given offset within block 3226 * *c: Calculate and display checksums 3227 * d: Decompress data before dumping 3228 * e: Byteswap data before dumping 3229 * g: Display data as a gang block header 3230 * i: Display as an indirect block 3231 * p: Do I/O to physical offset 3232 * r: Dump raw data to stdout 3233 * 3234 * * = not yet implemented 3235 */ 3236 static void 3237 zdb_read_block(char *thing, spa_t *spa) 3238 { 3239 blkptr_t blk, *bp = &blk; 3240 dva_t *dva = bp->blk_dva; 3241 int flags = 0; 3242 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 3243 zio_t *zio; 3244 vdev_t *vd; 3245 void *pbuf, *lbuf, *buf; 3246 char *s, *p, *dup, *vdev, *flagstr; 3247 int i, error; 3248 3249 dup = strdup(thing); 3250 s = strtok(dup, ":"); 3251 vdev = s ? s : ""; 3252 s = strtok(NULL, ":"); 3253 offset = strtoull(s ? s : "", NULL, 16); 3254 s = strtok(NULL, ":"); 3255 size = strtoull(s ? s : "", NULL, 16); 3256 s = strtok(NULL, ":"); 3257 flagstr = s ? s : ""; 3258 3259 s = NULL; 3260 if (size == 0) 3261 s = "size must not be zero"; 3262 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 3263 s = "size must be a multiple of sector size"; 3264 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 3265 s = "offset must be a multiple of sector size"; 3266 if (s) { 3267 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 3268 free(dup); 3269 return; 3270 } 3271 3272 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 3273 for (i = 0; flagstr[i]; i++) { 3274 int bit = flagbits[(uchar_t)flagstr[i]]; 3275 3276 if (bit == 0) { 3277 (void) printf("***Invalid flag: %c\n", 3278 flagstr[i]); 3279 continue; 3280 } 3281 flags |= bit; 3282 3283 /* If it's not something with an argument, keep going */ 3284 if ((bit & (ZDB_FLAG_CHECKSUM | 3285 ZDB_FLAG_PRINT_BLKPTR)) == 0) 3286 continue; 3287 3288 p = &flagstr[i + 1]; 3289 if (bit == ZDB_FLAG_PRINT_BLKPTR) 3290 blkptr_offset = strtoull(p, &p, 16); 3291 if (*p != ':' && *p != '\0') { 3292 (void) printf("***Invalid flag arg: '%s'\n", s); 3293 free(dup); 3294 return; 3295 } 3296 } 3297 } 3298 3299 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 3300 if (vd == NULL) { 3301 (void) printf("***Invalid vdev: %s\n", vdev); 3302 free(dup); 3303 return; 3304 } else { 3305 if (vd->vdev_path) 3306 (void) fprintf(stderr, "Found vdev: %s\n", 3307 vd->vdev_path); 3308 else 3309 (void) fprintf(stderr, "Found vdev type: %s\n", 3310 vd->vdev_ops->vdev_op_type); 3311 } 3312 3313 psize = size; 3314 lsize = size; 3315 3316 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3317 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3318 3319 BP_ZERO(bp); 3320 3321 DVA_SET_VDEV(&dva[0], vd->vdev_id); 3322 DVA_SET_OFFSET(&dva[0], offset); 3323 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 3324 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 3325 3326 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 3327 3328 BP_SET_LSIZE(bp, lsize); 3329 BP_SET_PSIZE(bp, psize); 3330 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 3331 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 3332 BP_SET_TYPE(bp, DMU_OT_NONE); 3333 BP_SET_LEVEL(bp, 0); 3334 BP_SET_DEDUP(bp, 0); 3335 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 3336 3337 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 3338 zio = zio_root(spa, NULL, NULL, 0); 3339 3340 if (vd == vd->vdev_top) { 3341 /* 3342 * Treat this as a normal block read. 3343 */ 3344 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL, 3345 ZIO_PRIORITY_SYNC_READ, 3346 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 3347 } else { 3348 /* 3349 * Treat this as a vdev child I/O. 3350 */ 3351 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize, 3352 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 3353 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 3354 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 3355 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL)); 3356 } 3357 3358 error = zio_wait(zio); 3359 spa_config_exit(spa, SCL_STATE, FTAG); 3360 3361 if (error) { 3362 (void) printf("Read of %s failed, error: %d\n", thing, error); 3363 goto out; 3364 } 3365 3366 if (flags & ZDB_FLAG_DECOMPRESS) { 3367 /* 3368 * We don't know how the data was compressed, so just try 3369 * every decompress function at every inflated blocksize. 3370 */ 3371 enum zio_compress c; 3372 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3373 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3374 3375 bcopy(pbuf, pbuf2, psize); 3376 3377 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize, 3378 SPA_MAXBLOCKSIZE - psize) == 0); 3379 3380 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 3381 SPA_MAXBLOCKSIZE - psize) == 0); 3382 3383 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 3384 lsize -= SPA_MINBLOCKSIZE) { 3385 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 3386 if (zio_decompress_data(c, pbuf, lbuf, 3387 psize, lsize) == 0 && 3388 zio_decompress_data(c, pbuf2, lbuf2, 3389 psize, lsize) == 0 && 3390 bcmp(lbuf, lbuf2, lsize) == 0) 3391 break; 3392 } 3393 if (c != ZIO_COMPRESS_FUNCTIONS) 3394 break; 3395 lsize -= SPA_MINBLOCKSIZE; 3396 } 3397 3398 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 3399 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 3400 3401 if (lsize <= psize) { 3402 (void) printf("Decompress of %s failed\n", thing); 3403 goto out; 3404 } 3405 buf = lbuf; 3406 size = lsize; 3407 } else { 3408 buf = pbuf; 3409 size = psize; 3410 } 3411 3412 if (flags & ZDB_FLAG_PRINT_BLKPTR) 3413 zdb_print_blkptr((blkptr_t *)(void *) 3414 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 3415 else if (flags & ZDB_FLAG_RAW) 3416 zdb_dump_block_raw(buf, size, flags); 3417 else if (flags & ZDB_FLAG_INDIRECT) 3418 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 3419 flags); 3420 else if (flags & ZDB_FLAG_GBH) 3421 zdb_dump_gbh(buf, flags); 3422 else 3423 zdb_dump_block(thing, buf, size, flags); 3424 3425 out: 3426 umem_free(pbuf, SPA_MAXBLOCKSIZE); 3427 umem_free(lbuf, SPA_MAXBLOCKSIZE); 3428 free(dup); 3429 } 3430 3431 static boolean_t 3432 pool_match(nvlist_t *cfg, char *tgt) 3433 { 3434 uint64_t v, guid = strtoull(tgt, NULL, 0); 3435 char *s; 3436 3437 if (guid != 0) { 3438 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) 3439 return (v == guid); 3440 } else { 3441 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) 3442 return (strcmp(s, tgt) == 0); 3443 } 3444 return (B_FALSE); 3445 } 3446 3447 static char * 3448 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) 3449 { 3450 nvlist_t *pools; 3451 nvlist_t *match = NULL; 3452 char *name = NULL; 3453 char *sepp = NULL; 3454 char sep = '\0'; 3455 int count = 0; 3456 importargs_t args = { 0 }; 3457 3458 args.paths = dirc; 3459 args.path = dirv; 3460 args.can_be_active = B_TRUE; 3461 3462 if ((sepp = strpbrk(*target, "/@")) != NULL) { 3463 sep = *sepp; 3464 *sepp = '\0'; 3465 } 3466 3467 pools = zpool_search_import(g_zfs, &args); 3468 3469 if (pools != NULL) { 3470 nvpair_t *elem = NULL; 3471 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 3472 verify(nvpair_value_nvlist(elem, configp) == 0); 3473 if (pool_match(*configp, *target)) { 3474 count++; 3475 if (match != NULL) { 3476 /* print previously found config */ 3477 if (name != NULL) { 3478 (void) printf("%s\n", name); 3479 dump_nvlist(match, 8); 3480 name = NULL; 3481 } 3482 (void) printf("%s\n", 3483 nvpair_name(elem)); 3484 dump_nvlist(*configp, 8); 3485 } else { 3486 match = *configp; 3487 name = nvpair_name(elem); 3488 } 3489 } 3490 } 3491 } 3492 if (count > 1) 3493 (void) fatal("\tMatched %d pools - use pool GUID " 3494 "instead of pool name or \n" 3495 "\tpool name part of a dataset name to select pool", count); 3496 3497 if (sepp) 3498 *sepp = sep; 3499 /* 3500 * If pool GUID was specified for pool id, replace it with pool name 3501 */ 3502 if (name && (strstr(*target, name) != *target)) { 3503 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); 3504 3505 *target = umem_alloc(sz, UMEM_NOFAIL); 3506 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); 3507 } 3508 3509 *configp = name ? match : NULL; 3510 3511 return (name); 3512 } 3513 3514 int 3515 main(int argc, char **argv) 3516 { 3517 int i, c; 3518 struct rlimit rl = { 1024, 1024 }; 3519 spa_t *spa = NULL; 3520 objset_t *os = NULL; 3521 int dump_all = 1; 3522 int verbose = 0; 3523 int error = 0; 3524 char **searchdirs = NULL; 3525 int nsearch = 0; 3526 char *target; 3527 nvlist_t *policy = NULL; 3528 uint64_t max_txg = UINT64_MAX; 3529 int rewind = ZPOOL_NEVER_REWIND; 3530 3531 (void) setrlimit(RLIMIT_NOFILE, &rl); 3532 (void) enable_extended_FILE_stdio(-1, -1); 3533 3534 dprintf_setup(&argc, argv); 3535 3536 while ((c = getopt(argc, argv, 3537 "bcdhilmMI:suCDRSAFLXx:evp:t:U:P")) != -1) { 3538 switch (c) { 3539 case 'b': 3540 case 'c': 3541 case 'd': 3542 case 'h': 3543 case 'i': 3544 case 'l': 3545 case 'm': 3546 case 's': 3547 case 'u': 3548 case 'C': 3549 case 'D': 3550 case 'M': 3551 case 'R': 3552 case 'S': 3553 dump_opt[c]++; 3554 dump_all = 0; 3555 break; 3556 case 'A': 3557 case 'F': 3558 case 'L': 3559 case 'X': 3560 case 'e': 3561 case 'P': 3562 dump_opt[c]++; 3563 break; 3564 case 'I': 3565 max_inflight = strtoull(optarg, NULL, 0); 3566 if (max_inflight == 0) { 3567 (void) fprintf(stderr, "maximum number " 3568 "of inflight I/Os must be greater " 3569 "than 0\n"); 3570 usage(); 3571 } 3572 break; 3573 case 'p': 3574 if (searchdirs == NULL) { 3575 searchdirs = umem_alloc(sizeof (char *), 3576 UMEM_NOFAIL); 3577 } else { 3578 char **tmp = umem_alloc((nsearch + 1) * 3579 sizeof (char *), UMEM_NOFAIL); 3580 bcopy(searchdirs, tmp, nsearch * 3581 sizeof (char *)); 3582 umem_free(searchdirs, 3583 nsearch * sizeof (char *)); 3584 searchdirs = tmp; 3585 } 3586 searchdirs[nsearch++] = optarg; 3587 break; 3588 case 't': 3589 max_txg = strtoull(optarg, NULL, 0); 3590 if (max_txg < TXG_INITIAL) { 3591 (void) fprintf(stderr, "incorrect txg " 3592 "specified: %s\n", optarg); 3593 usage(); 3594 } 3595 break; 3596 case 'U': 3597 spa_config_path = optarg; 3598 break; 3599 case 'v': 3600 verbose++; 3601 break; 3602 case 'x': 3603 vn_dumpdir = optarg; 3604 break; 3605 default: 3606 usage(); 3607 break; 3608 } 3609 } 3610 3611 if (!dump_opt['e'] && searchdirs != NULL) { 3612 (void) fprintf(stderr, "-p option requires use of -e\n"); 3613 usage(); 3614 } 3615 3616 /* 3617 * ZDB does not typically re-read blocks; therefore limit the ARC 3618 * to 256 MB, which can be used entirely for metadata. 3619 */ 3620 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024; 3621 3622 /* 3623 * "zdb -c" uses checksum-verifying scrub i/os which are async reads. 3624 * "zdb -b" uses traversal prefetch which uses async reads. 3625 * For good performance, let several of them be active at once. 3626 */ 3627 zfs_vdev_async_read_max_active = 10; 3628 3629 kernel_init(FREAD); 3630 g_zfs = libzfs_init(); 3631 ASSERT(g_zfs != NULL); 3632 3633 if (dump_all) 3634 verbose = MAX(verbose, 1); 3635 3636 for (c = 0; c < 256; c++) { 3637 if (dump_all && !strchr("elAFLRSXP", c)) 3638 dump_opt[c] = 1; 3639 if (dump_opt[c]) 3640 dump_opt[c] += verbose; 3641 } 3642 3643 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 3644 zfs_recover = (dump_opt['A'] > 1); 3645 3646 argc -= optind; 3647 argv += optind; 3648 3649 if (argc < 2 && dump_opt['R']) 3650 usage(); 3651 if (argc < 1) { 3652 if (!dump_opt['e'] && dump_opt['C']) { 3653 dump_cachefile(spa_config_path); 3654 return (0); 3655 } 3656 usage(); 3657 } 3658 3659 if (dump_opt['l']) { 3660 dump_label(argv[0]); 3661 return (0); 3662 } 3663 3664 if (dump_opt['X'] || dump_opt['F']) 3665 rewind = ZPOOL_DO_REWIND | 3666 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 3667 3668 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 3669 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 || 3670 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0) 3671 fatal("internal error: %s", strerror(ENOMEM)); 3672 3673 error = 0; 3674 target = argv[0]; 3675 3676 if (dump_opt['e']) { 3677 nvlist_t *cfg = NULL; 3678 char *name = find_zpool(&target, &cfg, nsearch, searchdirs); 3679 3680 error = ENOENT; 3681 if (name) { 3682 if (dump_opt['C'] > 1) { 3683 (void) printf("\nConfiguration for import:\n"); 3684 dump_nvlist(cfg, 8); 3685 } 3686 if (nvlist_add_nvlist(cfg, 3687 ZPOOL_REWIND_POLICY, policy) != 0) { 3688 fatal("can't open '%s': %s", 3689 target, strerror(ENOMEM)); 3690 } 3691 if ((error = spa_import(name, cfg, NULL, 3692 ZFS_IMPORT_MISSING_LOG)) != 0) { 3693 error = spa_import(name, cfg, NULL, 3694 ZFS_IMPORT_VERBATIM); 3695 } 3696 } 3697 } 3698 3699 if (error == 0) { 3700 if (strpbrk(target, "/@") == NULL || dump_opt['R']) { 3701 error = spa_open_rewind(target, &spa, FTAG, policy, 3702 NULL); 3703 if (error) { 3704 /* 3705 * If we're missing the log device then 3706 * try opening the pool after clearing the 3707 * log state. 3708 */ 3709 mutex_enter(&spa_namespace_lock); 3710 if ((spa = spa_lookup(target)) != NULL && 3711 spa->spa_log_state == SPA_LOG_MISSING) { 3712 spa->spa_log_state = SPA_LOG_CLEAR; 3713 error = 0; 3714 } 3715 mutex_exit(&spa_namespace_lock); 3716 3717 if (!error) { 3718 error = spa_open_rewind(target, &spa, 3719 FTAG, policy, NULL); 3720 } 3721 } 3722 } else { 3723 error = dmu_objset_own(target, DMU_OST_ANY, 3724 B_TRUE, FTAG, &os); 3725 } 3726 } 3727 nvlist_free(policy); 3728 3729 if (error) 3730 fatal("can't open '%s': %s", target, strerror(error)); 3731 3732 argv++; 3733 argc--; 3734 if (!dump_opt['R']) { 3735 if (argc > 0) { 3736 zopt_objects = argc; 3737 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 3738 for (i = 0; i < zopt_objects; i++) { 3739 errno = 0; 3740 zopt_object[i] = strtoull(argv[i], NULL, 0); 3741 if (zopt_object[i] == 0 && errno != 0) 3742 fatal("bad number %s: %s", 3743 argv[i], strerror(errno)); 3744 } 3745 } 3746 if (os != NULL) { 3747 dump_dir(os); 3748 } else if (zopt_objects > 0 && !dump_opt['m']) { 3749 dump_dir(spa->spa_meta_objset); 3750 } else { 3751 dump_zpool(spa); 3752 } 3753 } else { 3754 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 3755 flagbits['c'] = ZDB_FLAG_CHECKSUM; 3756 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 3757 flagbits['e'] = ZDB_FLAG_BSWAP; 3758 flagbits['g'] = ZDB_FLAG_GBH; 3759 flagbits['i'] = ZDB_FLAG_INDIRECT; 3760 flagbits['p'] = ZDB_FLAG_PHYS; 3761 flagbits['r'] = ZDB_FLAG_RAW; 3762 3763 for (i = 0; i < argc; i++) 3764 zdb_read_block(argv[i], spa); 3765 } 3766 3767 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG); 3768 3769 fuid_table_destroy(); 3770 sa_loaded = B_FALSE; 3771 3772 libzfs_fini(g_zfs); 3773 kernel_fini(); 3774 3775 return (0); 3776 } 3777