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, 2016 by Delphix. All rights reserved. 25 * Copyright (c) 2014 Integros [integros.com] 26 */ 27 28 #include <stdio.h> 29 #include <unistd.h> 30 #include <stdio_ext.h> 31 #include <stdlib.h> 32 #include <ctype.h> 33 #include <sys/zfs_context.h> 34 #include <sys/spa.h> 35 #include <sys/spa_impl.h> 36 #include <sys/dmu.h> 37 #include <sys/zap.h> 38 #include <sys/fs/zfs.h> 39 #include <sys/zfs_znode.h> 40 #include <sys/zfs_sa.h> 41 #include <sys/sa.h> 42 #include <sys/sa_impl.h> 43 #include <sys/vdev.h> 44 #include <sys/vdev_impl.h> 45 #include <sys/metaslab_impl.h> 46 #include <sys/dmu_objset.h> 47 #include <sys/dsl_dir.h> 48 #include <sys/dsl_dataset.h> 49 #include <sys/dsl_pool.h> 50 #include <sys/dbuf.h> 51 #include <sys/zil.h> 52 #include <sys/zil_impl.h> 53 #include <sys/stat.h> 54 #include <sys/resource.h> 55 #include <sys/dmu_traverse.h> 56 #include <sys/zio_checksum.h> 57 #include <sys/zio_compress.h> 58 #include <sys/zfs_fuid.h> 59 #include <sys/arc.h> 60 #include <sys/ddt.h> 61 #include <sys/zfeature.h> 62 #include <zfs_comutil.h> 63 #undef verify 64 #include <libzfs.h> 65 66 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \ 67 zio_compress_table[(idx)].ci_name : "UNKNOWN") 68 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \ 69 zio_checksum_table[(idx)].ci_name : "UNKNOWN") 70 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \ 71 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \ 72 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN") 73 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \ 74 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \ 75 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES)) 76 77 #ifndef lint 78 extern boolean_t zfs_recover; 79 extern uint64_t zfs_arc_max, zfs_arc_meta_limit; 80 extern int zfs_vdev_async_read_max_active; 81 #else 82 boolean_t zfs_recover; 83 uint64_t zfs_arc_max, zfs_arc_meta_limit; 84 int zfs_vdev_async_read_max_active; 85 #endif 86 87 const char cmdname[] = "zdb"; 88 uint8_t dump_opt[256]; 89 90 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size); 91 92 extern void dump_intent_log(zilog_t *); 93 uint64_t *zopt_object = NULL; 94 int zopt_objects = 0; 95 libzfs_handle_t *g_zfs; 96 uint64_t max_inflight = 1000; 97 98 static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *); 99 100 /* 101 * These libumem hooks provide a reasonable set of defaults for the allocator's 102 * debugging facilities. 103 */ 104 const char * 105 _umem_debug_init() 106 { 107 return ("default,verbose"); /* $UMEM_DEBUG setting */ 108 } 109 110 const char * 111 _umem_logging_init(void) 112 { 113 return ("fail,contents"); /* $UMEM_LOGGING setting */ 114 } 115 116 static void 117 usage(void) 118 { 119 (void) fprintf(stderr, 120 "Usage: %s [-CumMdibcsDvhLXFPAG] [-t txg] [-e [-p path...]] " 121 "[-U config] [-I inflight I/Os] [-x dumpdir] [-o var=value] " 122 "poolname [object...]\n" 123 " %s [-divPA] [-e -p path...] [-U config] dataset " 124 "[object...]\n" 125 " %s -mM [-LXFPA] [-t txg] [-e [-p path...]] [-U config] " 126 "poolname [vdev [metaslab...]]\n" 127 " %s -R [-A] [-e [-p path...]] poolname " 128 "vdev:offset:size[:flags]\n" 129 " %s -S [-PA] [-e [-p path...]] [-U config] poolname\n" 130 " %s -l [-uA] device\n" 131 " %s -C [-A] [-U config]\n\n", 132 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname); 133 134 (void) fprintf(stderr, " Dataset name must include at least one " 135 "separator character '/' or '@'\n"); 136 (void) fprintf(stderr, " If dataset name is specified, only that " 137 "dataset is dumped\n"); 138 (void) fprintf(stderr, " If object numbers are specified, only " 139 "those objects are dumped\n\n"); 140 (void) fprintf(stderr, " Options to control amount of output:\n"); 141 (void) fprintf(stderr, " -u uberblock\n"); 142 (void) fprintf(stderr, " -d dataset(s)\n"); 143 (void) fprintf(stderr, " -i intent logs\n"); 144 (void) fprintf(stderr, " -C config (or cachefile if alone)\n"); 145 (void) fprintf(stderr, " -h pool history\n"); 146 (void) fprintf(stderr, " -b block statistics\n"); 147 (void) fprintf(stderr, " -m metaslabs\n"); 148 (void) fprintf(stderr, " -M metaslab groups\n"); 149 (void) fprintf(stderr, " -c checksum all metadata (twice for " 150 "all data) blocks\n"); 151 (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); 152 (void) fprintf(stderr, " -D dedup statistics\n"); 153 (void) fprintf(stderr, " -S simulate dedup to measure effect\n"); 154 (void) fprintf(stderr, " -v verbose (applies to all others)\n"); 155 (void) fprintf(stderr, " -l dump label contents\n"); 156 (void) fprintf(stderr, " -L disable leak tracking (do not " 157 "load spacemaps)\n"); 158 (void) fprintf(stderr, " -R read and display block from a " 159 "device\n\n"); 160 (void) fprintf(stderr, " Below options are intended for use " 161 "with other options:\n"); 162 (void) fprintf(stderr, " -A ignore assertions (-A), enable " 163 "panic recovery (-AA) or both (-AAA)\n"); 164 (void) fprintf(stderr, " -F attempt automatic rewind within " 165 "safe range of transaction groups\n"); 166 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate " 167 "cachefile\n"); 168 (void) fprintf(stderr, " -X attempt extreme rewind (does not " 169 "work with dataset)\n"); 170 (void) fprintf(stderr, " -e pool is exported/destroyed/" 171 "has altroot/not in a cachefile\n"); 172 (void) fprintf(stderr, " -p <path> -- use one or more with " 173 "-e to specify path to vdev dir\n"); 174 (void) fprintf(stderr, " -x <dumpdir> -- " 175 "dump all read blocks into specified directory\n"); 176 (void) fprintf(stderr, " -P print numbers in parseable form\n"); 177 (void) fprintf(stderr, " -t <txg> -- highest txg to use when " 178 "searching for uberblocks\n"); 179 (void) fprintf(stderr, " -I <number of inflight I/Os> -- " 180 "specify the maximum number of " 181 "checksumming I/Os [default is 200]\n"); 182 (void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before " 183 "exiting\n"); 184 (void) fprintf(stderr, " -o <variable>=<value> set global " 185 "variable to an unsigned 32-bit integer value\n"); 186 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 187 "to make only that option verbose\n"); 188 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 189 exit(1); 190 } 191 192 static void 193 dump_debug_buffer() 194 { 195 if (dump_opt['G']) { 196 (void) printf("\n"); 197 zfs_dbgmsg_print("zdb"); 198 } 199 } 200 201 /* 202 * Called for usage errors that are discovered after a call to spa_open(), 203 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. 204 */ 205 206 static void 207 fatal(const char *fmt, ...) 208 { 209 va_list ap; 210 211 va_start(ap, fmt); 212 (void) fprintf(stderr, "%s: ", cmdname); 213 (void) vfprintf(stderr, fmt, ap); 214 va_end(ap); 215 (void) fprintf(stderr, "\n"); 216 217 dump_debug_buffer(); 218 219 exit(1); 220 } 221 222 /* ARGSUSED */ 223 static void 224 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 225 { 226 nvlist_t *nv; 227 size_t nvsize = *(uint64_t *)data; 228 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 229 230 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH)); 231 232 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 233 234 umem_free(packed, nvsize); 235 236 dump_nvlist(nv, 8); 237 238 nvlist_free(nv); 239 } 240 241 /* ARGSUSED */ 242 static void 243 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size) 244 { 245 spa_history_phys_t *shp = data; 246 247 if (shp == NULL) 248 return; 249 250 (void) printf("\t\tpool_create_len = %llu\n", 251 (u_longlong_t)shp->sh_pool_create_len); 252 (void) printf("\t\tphys_max_off = %llu\n", 253 (u_longlong_t)shp->sh_phys_max_off); 254 (void) printf("\t\tbof = %llu\n", 255 (u_longlong_t)shp->sh_bof); 256 (void) printf("\t\teof = %llu\n", 257 (u_longlong_t)shp->sh_eof); 258 (void) printf("\t\trecords_lost = %llu\n", 259 (u_longlong_t)shp->sh_records_lost); 260 } 261 262 static void 263 zdb_nicenum(uint64_t num, char *buf) 264 { 265 if (dump_opt['P']) 266 (void) sprintf(buf, "%llu", (longlong_t)num); 267 else 268 nicenum(num, buf); 269 } 270 271 const char histo_stars[] = "****************************************"; 272 const int histo_width = sizeof (histo_stars) - 1; 273 274 static void 275 dump_histogram(const uint64_t *histo, int size, int offset) 276 { 277 int i; 278 int minidx = size - 1; 279 int maxidx = 0; 280 uint64_t max = 0; 281 282 for (i = 0; i < size; i++) { 283 if (histo[i] > max) 284 max = histo[i]; 285 if (histo[i] > 0 && i > maxidx) 286 maxidx = i; 287 if (histo[i] > 0 && i < minidx) 288 minidx = i; 289 } 290 291 if (max < histo_width) 292 max = histo_width; 293 294 for (i = minidx; i <= maxidx; i++) { 295 (void) printf("\t\t\t%3u: %6llu %s\n", 296 i + offset, (u_longlong_t)histo[i], 297 &histo_stars[(max - histo[i]) * histo_width / max]); 298 } 299 } 300 301 static void 302 dump_zap_stats(objset_t *os, uint64_t object) 303 { 304 int error; 305 zap_stats_t zs; 306 307 error = zap_get_stats(os, object, &zs); 308 if (error) 309 return; 310 311 if (zs.zs_ptrtbl_len == 0) { 312 ASSERT(zs.zs_num_blocks == 1); 313 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 314 (u_longlong_t)zs.zs_blocksize, 315 (u_longlong_t)zs.zs_num_entries); 316 return; 317 } 318 319 (void) printf("\tFat ZAP stats:\n"); 320 321 (void) printf("\t\tPointer table:\n"); 322 (void) printf("\t\t\t%llu elements\n", 323 (u_longlong_t)zs.zs_ptrtbl_len); 324 (void) printf("\t\t\tzt_blk: %llu\n", 325 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 326 (void) printf("\t\t\tzt_numblks: %llu\n", 327 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 328 (void) printf("\t\t\tzt_shift: %llu\n", 329 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 330 (void) printf("\t\t\tzt_blks_copied: %llu\n", 331 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 332 (void) printf("\t\t\tzt_nextblk: %llu\n", 333 (u_longlong_t)zs.zs_ptrtbl_nextblk); 334 335 (void) printf("\t\tZAP entries: %llu\n", 336 (u_longlong_t)zs.zs_num_entries); 337 (void) printf("\t\tLeaf blocks: %llu\n", 338 (u_longlong_t)zs.zs_num_leafs); 339 (void) printf("\t\tTotal blocks: %llu\n", 340 (u_longlong_t)zs.zs_num_blocks); 341 (void) printf("\t\tzap_block_type: 0x%llx\n", 342 (u_longlong_t)zs.zs_block_type); 343 (void) printf("\t\tzap_magic: 0x%llx\n", 344 (u_longlong_t)zs.zs_magic); 345 (void) printf("\t\tzap_salt: 0x%llx\n", 346 (u_longlong_t)zs.zs_salt); 347 348 (void) printf("\t\tLeafs with 2^n pointers:\n"); 349 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0); 350 351 (void) printf("\t\tBlocks with n*5 entries:\n"); 352 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0); 353 354 (void) printf("\t\tBlocks n/10 full:\n"); 355 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0); 356 357 (void) printf("\t\tEntries with n chunks:\n"); 358 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0); 359 360 (void) printf("\t\tBuckets with n entries:\n"); 361 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0); 362 } 363 364 /*ARGSUSED*/ 365 static void 366 dump_none(objset_t *os, uint64_t object, void *data, size_t size) 367 { 368 } 369 370 /*ARGSUSED*/ 371 static void 372 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size) 373 { 374 (void) printf("\tUNKNOWN OBJECT TYPE\n"); 375 } 376 377 /*ARGSUSED*/ 378 void 379 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 380 { 381 } 382 383 /*ARGSUSED*/ 384 static void 385 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 386 { 387 } 388 389 /*ARGSUSED*/ 390 static void 391 dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 392 { 393 zap_cursor_t zc; 394 zap_attribute_t attr; 395 void *prop; 396 int i; 397 398 dump_zap_stats(os, object); 399 (void) printf("\n"); 400 401 for (zap_cursor_init(&zc, os, object); 402 zap_cursor_retrieve(&zc, &attr) == 0; 403 zap_cursor_advance(&zc)) { 404 (void) printf("\t\t%s = ", attr.za_name); 405 if (attr.za_num_integers == 0) { 406 (void) printf("\n"); 407 continue; 408 } 409 prop = umem_zalloc(attr.za_num_integers * 410 attr.za_integer_length, UMEM_NOFAIL); 411 (void) zap_lookup(os, object, attr.za_name, 412 attr.za_integer_length, attr.za_num_integers, prop); 413 if (attr.za_integer_length == 1) { 414 (void) printf("%s", (char *)prop); 415 } else { 416 for (i = 0; i < attr.za_num_integers; i++) { 417 switch (attr.za_integer_length) { 418 case 2: 419 (void) printf("%u ", 420 ((uint16_t *)prop)[i]); 421 break; 422 case 4: 423 (void) printf("%u ", 424 ((uint32_t *)prop)[i]); 425 break; 426 case 8: 427 (void) printf("%lld ", 428 (u_longlong_t)((int64_t *)prop)[i]); 429 break; 430 } 431 } 432 } 433 (void) printf("\n"); 434 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 435 } 436 zap_cursor_fini(&zc); 437 } 438 439 static void 440 dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size) 441 { 442 bpobj_phys_t *bpop = data; 443 char bytes[32], comp[32], uncomp[32]; 444 445 if (bpop == NULL) 446 return; 447 448 zdb_nicenum(bpop->bpo_bytes, bytes); 449 zdb_nicenum(bpop->bpo_comp, comp); 450 zdb_nicenum(bpop->bpo_uncomp, uncomp); 451 452 (void) printf("\t\tnum_blkptrs = %llu\n", 453 (u_longlong_t)bpop->bpo_num_blkptrs); 454 (void) printf("\t\tbytes = %s\n", bytes); 455 if (size >= BPOBJ_SIZE_V1) { 456 (void) printf("\t\tcomp = %s\n", comp); 457 (void) printf("\t\tuncomp = %s\n", uncomp); 458 } 459 if (size >= sizeof (*bpop)) { 460 (void) printf("\t\tsubobjs = %llu\n", 461 (u_longlong_t)bpop->bpo_subobjs); 462 (void) printf("\t\tnum_subobjs = %llu\n", 463 (u_longlong_t)bpop->bpo_num_subobjs); 464 } 465 466 if (dump_opt['d'] < 5) 467 return; 468 469 for (uint64_t i = 0; i < bpop->bpo_num_blkptrs; i++) { 470 char blkbuf[BP_SPRINTF_LEN]; 471 blkptr_t bp; 472 473 int err = dmu_read(os, object, 474 i * sizeof (bp), sizeof (bp), &bp, 0); 475 if (err != 0) { 476 (void) printf("got error %u from dmu_read\n", err); 477 break; 478 } 479 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp); 480 (void) printf("\t%s\n", blkbuf); 481 } 482 } 483 484 /* ARGSUSED */ 485 static void 486 dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size) 487 { 488 dmu_object_info_t doi; 489 490 VERIFY0(dmu_object_info(os, object, &doi)); 491 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP); 492 493 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0); 494 if (err != 0) { 495 (void) printf("got error %u from dmu_read\n", err); 496 kmem_free(subobjs, doi.doi_max_offset); 497 return; 498 } 499 500 int64_t last_nonzero = -1; 501 for (uint64_t i = 0; i < doi.doi_max_offset / 8; i++) { 502 if (subobjs[i] != 0) 503 last_nonzero = i; 504 } 505 506 for (int64_t i = 0; i <= last_nonzero; i++) { 507 (void) printf("\t%llu\n", (longlong_t)subobjs[i]); 508 } 509 kmem_free(subobjs, doi.doi_max_offset); 510 } 511 512 /*ARGSUSED*/ 513 static void 514 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size) 515 { 516 dump_zap_stats(os, object); 517 /* contents are printed elsewhere, properly decoded */ 518 } 519 520 /*ARGSUSED*/ 521 static void 522 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size) 523 { 524 zap_cursor_t zc; 525 zap_attribute_t attr; 526 527 dump_zap_stats(os, object); 528 (void) printf("\n"); 529 530 for (zap_cursor_init(&zc, os, object); 531 zap_cursor_retrieve(&zc, &attr) == 0; 532 zap_cursor_advance(&zc)) { 533 (void) printf("\t\t%s = ", attr.za_name); 534 if (attr.za_num_integers == 0) { 535 (void) printf("\n"); 536 continue; 537 } 538 (void) printf(" %llx : [%d:%d:%d]\n", 539 (u_longlong_t)attr.za_first_integer, 540 (int)ATTR_LENGTH(attr.za_first_integer), 541 (int)ATTR_BSWAP(attr.za_first_integer), 542 (int)ATTR_NUM(attr.za_first_integer)); 543 } 544 zap_cursor_fini(&zc); 545 } 546 547 /*ARGSUSED*/ 548 static void 549 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size) 550 { 551 zap_cursor_t zc; 552 zap_attribute_t attr; 553 uint16_t *layout_attrs; 554 int i; 555 556 dump_zap_stats(os, object); 557 (void) printf("\n"); 558 559 for (zap_cursor_init(&zc, os, object); 560 zap_cursor_retrieve(&zc, &attr) == 0; 561 zap_cursor_advance(&zc)) { 562 (void) printf("\t\t%s = [", attr.za_name); 563 if (attr.za_num_integers == 0) { 564 (void) printf("\n"); 565 continue; 566 } 567 568 VERIFY(attr.za_integer_length == 2); 569 layout_attrs = umem_zalloc(attr.za_num_integers * 570 attr.za_integer_length, UMEM_NOFAIL); 571 572 VERIFY(zap_lookup(os, object, attr.za_name, 573 attr.za_integer_length, 574 attr.za_num_integers, layout_attrs) == 0); 575 576 for (i = 0; i != attr.za_num_integers; i++) 577 (void) printf(" %d ", (int)layout_attrs[i]); 578 (void) printf("]\n"); 579 umem_free(layout_attrs, 580 attr.za_num_integers * attr.za_integer_length); 581 } 582 zap_cursor_fini(&zc); 583 } 584 585 /*ARGSUSED*/ 586 static void 587 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 588 { 589 zap_cursor_t zc; 590 zap_attribute_t attr; 591 const char *typenames[] = { 592 /* 0 */ "not specified", 593 /* 1 */ "FIFO", 594 /* 2 */ "Character Device", 595 /* 3 */ "3 (invalid)", 596 /* 4 */ "Directory", 597 /* 5 */ "5 (invalid)", 598 /* 6 */ "Block Device", 599 /* 7 */ "7 (invalid)", 600 /* 8 */ "Regular File", 601 /* 9 */ "9 (invalid)", 602 /* 10 */ "Symbolic Link", 603 /* 11 */ "11 (invalid)", 604 /* 12 */ "Socket", 605 /* 13 */ "Door", 606 /* 14 */ "Event Port", 607 /* 15 */ "15 (invalid)", 608 }; 609 610 dump_zap_stats(os, object); 611 (void) printf("\n"); 612 613 for (zap_cursor_init(&zc, os, object); 614 zap_cursor_retrieve(&zc, &attr) == 0; 615 zap_cursor_advance(&zc)) { 616 (void) printf("\t\t%s = %lld (type: %s)\n", 617 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 618 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 619 } 620 zap_cursor_fini(&zc); 621 } 622 623 int 624 get_dtl_refcount(vdev_t *vd) 625 { 626 int refcount = 0; 627 628 if (vd->vdev_ops->vdev_op_leaf) { 629 space_map_t *sm = vd->vdev_dtl_sm; 630 631 if (sm != NULL && 632 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 633 return (1); 634 return (0); 635 } 636 637 for (int c = 0; c < vd->vdev_children; c++) 638 refcount += get_dtl_refcount(vd->vdev_child[c]); 639 return (refcount); 640 } 641 642 int 643 get_metaslab_refcount(vdev_t *vd) 644 { 645 int refcount = 0; 646 647 if (vd->vdev_top == vd && !vd->vdev_removing) { 648 for (int m = 0; m < vd->vdev_ms_count; m++) { 649 space_map_t *sm = vd->vdev_ms[m]->ms_sm; 650 651 if (sm != NULL && 652 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 653 refcount++; 654 } 655 } 656 for (int c = 0; c < vd->vdev_children; c++) 657 refcount += get_metaslab_refcount(vd->vdev_child[c]); 658 659 return (refcount); 660 } 661 662 static int 663 verify_spacemap_refcounts(spa_t *spa) 664 { 665 uint64_t expected_refcount = 0; 666 uint64_t actual_refcount; 667 668 (void) feature_get_refcount(spa, 669 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM], 670 &expected_refcount); 671 actual_refcount = get_dtl_refcount(spa->spa_root_vdev); 672 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev); 673 674 if (expected_refcount != actual_refcount) { 675 (void) printf("space map refcount mismatch: expected %lld != " 676 "actual %lld\n", 677 (longlong_t)expected_refcount, 678 (longlong_t)actual_refcount); 679 return (2); 680 } 681 return (0); 682 } 683 684 static void 685 dump_spacemap(objset_t *os, space_map_t *sm) 686 { 687 uint64_t alloc, offset, entry; 688 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 689 "INVALID", "INVALID", "INVALID", "INVALID" }; 690 691 if (sm == NULL) 692 return; 693 694 /* 695 * Print out the freelist entries in both encoded and decoded form. 696 */ 697 alloc = 0; 698 for (offset = 0; offset < space_map_length(sm); 699 offset += sizeof (entry)) { 700 uint8_t mapshift = sm->sm_shift; 701 702 VERIFY0(dmu_read(os, space_map_object(sm), offset, 703 sizeof (entry), &entry, DMU_READ_PREFETCH)); 704 if (SM_DEBUG_DECODE(entry)) { 705 706 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n", 707 (u_longlong_t)(offset / sizeof (entry)), 708 ddata[SM_DEBUG_ACTION_DECODE(entry)], 709 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry), 710 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry)); 711 } else { 712 (void) printf("\t [%6llu] %c range:" 713 " %010llx-%010llx size: %06llx\n", 714 (u_longlong_t)(offset / sizeof (entry)), 715 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 716 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 717 mapshift) + sm->sm_start), 718 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 719 mapshift) + sm->sm_start + 720 (SM_RUN_DECODE(entry) << mapshift)), 721 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift)); 722 if (SM_TYPE_DECODE(entry) == SM_ALLOC) 723 alloc += SM_RUN_DECODE(entry) << mapshift; 724 else 725 alloc -= SM_RUN_DECODE(entry) << mapshift; 726 } 727 } 728 if (alloc != space_map_allocated(sm)) { 729 (void) printf("space_map_object alloc (%llu) INCONSISTENT " 730 "with space map summary (%llu)\n", 731 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc); 732 } 733 } 734 735 static void 736 dump_metaslab_stats(metaslab_t *msp) 737 { 738 char maxbuf[32]; 739 range_tree_t *rt = msp->ms_tree; 740 avl_tree_t *t = &msp->ms_size_tree; 741 int free_pct = range_tree_space(rt) * 100 / msp->ms_size; 742 743 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf); 744 745 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", 746 "segments", avl_numnodes(t), "maxsize", maxbuf, 747 "freepct", free_pct); 748 (void) printf("\tIn-memory histogram:\n"); 749 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 750 } 751 752 static void 753 dump_metaslab(metaslab_t *msp) 754 { 755 vdev_t *vd = msp->ms_group->mg_vd; 756 spa_t *spa = vd->vdev_spa; 757 space_map_t *sm = msp->ms_sm; 758 char freebuf[32]; 759 760 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf); 761 762 (void) printf( 763 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", 764 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start, 765 (u_longlong_t)space_map_object(sm), freebuf); 766 767 if (dump_opt['m'] > 2 && !dump_opt['L']) { 768 mutex_enter(&msp->ms_lock); 769 metaslab_load_wait(msp); 770 if (!msp->ms_loaded) { 771 VERIFY0(metaslab_load(msp)); 772 range_tree_stat_verify(msp->ms_tree); 773 } 774 dump_metaslab_stats(msp); 775 metaslab_unload(msp); 776 mutex_exit(&msp->ms_lock); 777 } 778 779 if (dump_opt['m'] > 1 && sm != NULL && 780 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) { 781 /* 782 * The space map histogram represents free space in chunks 783 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift). 784 */ 785 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n", 786 (u_longlong_t)msp->ms_fragmentation); 787 dump_histogram(sm->sm_phys->smp_histogram, 788 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift); 789 } 790 791 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) { 792 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift)); 793 794 mutex_enter(&msp->ms_lock); 795 dump_spacemap(spa->spa_meta_objset, msp->ms_sm); 796 mutex_exit(&msp->ms_lock); 797 } 798 } 799 800 static void 801 print_vdev_metaslab_header(vdev_t *vd) 802 { 803 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n", 804 (u_longlong_t)vd->vdev_id, 805 "metaslabs", (u_longlong_t)vd->vdev_ms_count, 806 "offset", "spacemap", "free"); 807 (void) printf("\t%15s %19s %15s %10s\n", 808 "---------------", "-------------------", 809 "---------------", "-------------"); 810 } 811 812 static void 813 dump_metaslab_groups(spa_t *spa) 814 { 815 vdev_t *rvd = spa->spa_root_vdev; 816 metaslab_class_t *mc = spa_normal_class(spa); 817 uint64_t fragmentation; 818 819 metaslab_class_histogram_verify(mc); 820 821 for (int c = 0; c < rvd->vdev_children; c++) { 822 vdev_t *tvd = rvd->vdev_child[c]; 823 metaslab_group_t *mg = tvd->vdev_mg; 824 825 if (mg->mg_class != mc) 826 continue; 827 828 metaslab_group_histogram_verify(mg); 829 mg->mg_fragmentation = metaslab_group_fragmentation(mg); 830 831 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t" 832 "fragmentation", 833 (u_longlong_t)tvd->vdev_id, 834 (u_longlong_t)tvd->vdev_ms_count); 835 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) { 836 (void) printf("%3s\n", "-"); 837 } else { 838 (void) printf("%3llu%%\n", 839 (u_longlong_t)mg->mg_fragmentation); 840 } 841 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 842 } 843 844 (void) printf("\tpool %s\tfragmentation", spa_name(spa)); 845 fragmentation = metaslab_class_fragmentation(mc); 846 if (fragmentation == ZFS_FRAG_INVALID) 847 (void) printf("\t%3s\n", "-"); 848 else 849 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation); 850 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 851 } 852 853 static void 854 dump_metaslabs(spa_t *spa) 855 { 856 vdev_t *vd, *rvd = spa->spa_root_vdev; 857 uint64_t m, c = 0, children = rvd->vdev_children; 858 859 (void) printf("\nMetaslabs:\n"); 860 861 if (!dump_opt['d'] && zopt_objects > 0) { 862 c = zopt_object[0]; 863 864 if (c >= children) 865 (void) fatal("bad vdev id: %llu", (u_longlong_t)c); 866 867 if (zopt_objects > 1) { 868 vd = rvd->vdev_child[c]; 869 print_vdev_metaslab_header(vd); 870 871 for (m = 1; m < zopt_objects; m++) { 872 if (zopt_object[m] < vd->vdev_ms_count) 873 dump_metaslab( 874 vd->vdev_ms[zopt_object[m]]); 875 else 876 (void) fprintf(stderr, "bad metaslab " 877 "number %llu\n", 878 (u_longlong_t)zopt_object[m]); 879 } 880 (void) printf("\n"); 881 return; 882 } 883 children = c + 1; 884 } 885 for (; c < children; c++) { 886 vd = rvd->vdev_child[c]; 887 print_vdev_metaslab_header(vd); 888 889 for (m = 0; m < vd->vdev_ms_count; m++) 890 dump_metaslab(vd->vdev_ms[m]); 891 (void) printf("\n"); 892 } 893 } 894 895 static void 896 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) 897 { 898 const ddt_phys_t *ddp = dde->dde_phys; 899 const ddt_key_t *ddk = &dde->dde_key; 900 char *types[4] = { "ditto", "single", "double", "triple" }; 901 char blkbuf[BP_SPRINTF_LEN]; 902 blkptr_t blk; 903 904 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 905 if (ddp->ddp_phys_birth == 0) 906 continue; 907 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); 908 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk); 909 (void) printf("index %llx refcnt %llu %s %s\n", 910 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, 911 types[p], blkbuf); 912 } 913 } 914 915 static void 916 dump_dedup_ratio(const ddt_stat_t *dds) 917 { 918 double rL, rP, rD, D, dedup, compress, copies; 919 920 if (dds->dds_blocks == 0) 921 return; 922 923 rL = (double)dds->dds_ref_lsize; 924 rP = (double)dds->dds_ref_psize; 925 rD = (double)dds->dds_ref_dsize; 926 D = (double)dds->dds_dsize; 927 928 dedup = rD / D; 929 compress = rL / rP; 930 copies = rD / rP; 931 932 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " 933 "dedup * compress / copies = %.2f\n\n", 934 dedup, compress, copies, dedup * compress / copies); 935 } 936 937 static void 938 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class) 939 { 940 char name[DDT_NAMELEN]; 941 ddt_entry_t dde; 942 uint64_t walk = 0; 943 dmu_object_info_t doi; 944 uint64_t count, dspace, mspace; 945 int error; 946 947 error = ddt_object_info(ddt, type, class, &doi); 948 949 if (error == ENOENT) 950 return; 951 ASSERT(error == 0); 952 953 if ((count = ddt_object_count(ddt, type, class)) == 0) 954 return; 955 956 dspace = doi.doi_physical_blocks_512 << 9; 957 mspace = doi.doi_fill_count * doi.doi_data_block_size; 958 959 ddt_object_name(ddt, type, class, name); 960 961 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n", 962 name, 963 (u_longlong_t)count, 964 (u_longlong_t)(dspace / count), 965 (u_longlong_t)(mspace / count)); 966 967 if (dump_opt['D'] < 3) 968 return; 969 970 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]); 971 972 if (dump_opt['D'] < 4) 973 return; 974 975 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE) 976 return; 977 978 (void) printf("%s contents:\n\n", name); 979 980 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0) 981 dump_dde(ddt, &dde, walk); 982 983 ASSERT(error == ENOENT); 984 985 (void) printf("\n"); 986 } 987 988 static void 989 dump_all_ddts(spa_t *spa) 990 { 991 ddt_histogram_t ddh_total = { 0 }; 992 ddt_stat_t dds_total = { 0 }; 993 994 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { 995 ddt_t *ddt = spa->spa_ddt[c]; 996 for (enum ddt_type type = 0; type < DDT_TYPES; type++) { 997 for (enum ddt_class class = 0; class < DDT_CLASSES; 998 class++) { 999 dump_ddt(ddt, type, class); 1000 } 1001 } 1002 } 1003 1004 ddt_get_dedup_stats(spa, &dds_total); 1005 1006 if (dds_total.dds_blocks == 0) { 1007 (void) printf("All DDTs are empty\n"); 1008 return; 1009 } 1010 1011 (void) printf("\n"); 1012 1013 if (dump_opt['D'] > 1) { 1014 (void) printf("DDT histogram (aggregated over all DDTs):\n"); 1015 ddt_get_dedup_histogram(spa, &ddh_total); 1016 zpool_dump_ddt(&dds_total, &ddh_total); 1017 } 1018 1019 dump_dedup_ratio(&dds_total); 1020 } 1021 1022 static void 1023 dump_dtl_seg(void *arg, uint64_t start, uint64_t size) 1024 { 1025 char *prefix = arg; 1026 1027 (void) printf("%s [%llu,%llu) length %llu\n", 1028 prefix, 1029 (u_longlong_t)start, 1030 (u_longlong_t)(start + size), 1031 (u_longlong_t)(size)); 1032 } 1033 1034 static void 1035 dump_dtl(vdev_t *vd, int indent) 1036 { 1037 spa_t *spa = vd->vdev_spa; 1038 boolean_t required; 1039 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" }; 1040 char prefix[256]; 1041 1042 spa_vdev_state_enter(spa, SCL_NONE); 1043 required = vdev_dtl_required(vd); 1044 (void) spa_vdev_state_exit(spa, NULL, 0); 1045 1046 if (indent == 0) 1047 (void) printf("\nDirty time logs:\n\n"); 1048 1049 (void) printf("\t%*s%s [%s]\n", indent, "", 1050 vd->vdev_path ? vd->vdev_path : 1051 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 1052 required ? "DTL-required" : "DTL-expendable"); 1053 1054 for (int t = 0; t < DTL_TYPES; t++) { 1055 range_tree_t *rt = vd->vdev_dtl[t]; 1056 if (range_tree_space(rt) == 0) 1057 continue; 1058 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 1059 indent + 2, "", name[t]); 1060 mutex_enter(rt->rt_lock); 1061 range_tree_walk(rt, dump_dtl_seg, prefix); 1062 mutex_exit(rt->rt_lock); 1063 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 1064 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm); 1065 } 1066 1067 for (int c = 0; c < vd->vdev_children; c++) 1068 dump_dtl(vd->vdev_child[c], indent + 4); 1069 } 1070 1071 static void 1072 dump_history(spa_t *spa) 1073 { 1074 nvlist_t **events = NULL; 1075 uint64_t resid, len, off = 0; 1076 uint_t num = 0; 1077 int error; 1078 time_t tsec; 1079 struct tm t; 1080 char tbuf[30]; 1081 char internalstr[MAXPATHLEN]; 1082 1083 char *buf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 1084 do { 1085 len = SPA_MAXBLOCKSIZE; 1086 1087 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 1088 (void) fprintf(stderr, "Unable to read history: " 1089 "error %d\n", error); 1090 umem_free(buf, SPA_MAXBLOCKSIZE); 1091 return; 1092 } 1093 1094 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 1095 break; 1096 1097 off -= resid; 1098 } while (len != 0); 1099 umem_free(buf, SPA_MAXBLOCKSIZE); 1100 1101 (void) printf("\nHistory:\n"); 1102 for (int i = 0; i < num; i++) { 1103 uint64_t time, txg, ievent; 1104 char *cmd, *intstr; 1105 boolean_t printed = B_FALSE; 1106 1107 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, 1108 &time) != 0) 1109 goto next; 1110 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, 1111 &cmd) != 0) { 1112 if (nvlist_lookup_uint64(events[i], 1113 ZPOOL_HIST_INT_EVENT, &ievent) != 0) 1114 goto next; 1115 verify(nvlist_lookup_uint64(events[i], 1116 ZPOOL_HIST_TXG, &txg) == 0); 1117 verify(nvlist_lookup_string(events[i], 1118 ZPOOL_HIST_INT_STR, &intstr) == 0); 1119 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 1120 goto next; 1121 1122 (void) snprintf(internalstr, 1123 sizeof (internalstr), 1124 "[internal %s txg:%lld] %s", 1125 zfs_history_event_names[ievent], txg, 1126 intstr); 1127 cmd = internalstr; 1128 } 1129 tsec = time; 1130 (void) localtime_r(&tsec, &t); 1131 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 1132 (void) printf("%s %s\n", tbuf, cmd); 1133 printed = B_TRUE; 1134 1135 next: 1136 if (dump_opt['h'] > 1) { 1137 if (!printed) 1138 (void) printf("unrecognized record:\n"); 1139 dump_nvlist(events[i], 2); 1140 } 1141 } 1142 } 1143 1144 /*ARGSUSED*/ 1145 static void 1146 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 1147 { 1148 } 1149 1150 static uint64_t 1151 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, 1152 const zbookmark_phys_t *zb) 1153 { 1154 if (dnp == NULL) { 1155 ASSERT(zb->zb_level < 0); 1156 if (zb->zb_object == 0) 1157 return (zb->zb_blkid); 1158 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 1159 } 1160 1161 ASSERT(zb->zb_level >= 0); 1162 1163 return ((zb->zb_blkid << 1164 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 1165 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 1166 } 1167 1168 static void 1169 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp) 1170 { 1171 const dva_t *dva = bp->blk_dva; 1172 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 1173 1174 if (dump_opt['b'] >= 6) { 1175 snprintf_blkptr(blkbuf, buflen, bp); 1176 return; 1177 } 1178 1179 if (BP_IS_EMBEDDED(bp)) { 1180 (void) sprintf(blkbuf, 1181 "EMBEDDED et=%u %llxL/%llxP B=%llu", 1182 (int)BPE_GET_ETYPE(bp), 1183 (u_longlong_t)BPE_GET_LSIZE(bp), 1184 (u_longlong_t)BPE_GET_PSIZE(bp), 1185 (u_longlong_t)bp->blk_birth); 1186 return; 1187 } 1188 1189 blkbuf[0] = '\0'; 1190 for (int i = 0; i < ndvas; i++) 1191 (void) snprintf(blkbuf + strlen(blkbuf), 1192 buflen - strlen(blkbuf), "%llu:%llx:%llx ", 1193 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 1194 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 1195 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 1196 1197 if (BP_IS_HOLE(bp)) { 1198 (void) snprintf(blkbuf + strlen(blkbuf), 1199 buflen - strlen(blkbuf), 1200 "%llxL B=%llu", 1201 (u_longlong_t)BP_GET_LSIZE(bp), 1202 (u_longlong_t)bp->blk_birth); 1203 } else { 1204 (void) snprintf(blkbuf + strlen(blkbuf), 1205 buflen - strlen(blkbuf), 1206 "%llxL/%llxP F=%llu B=%llu/%llu", 1207 (u_longlong_t)BP_GET_LSIZE(bp), 1208 (u_longlong_t)BP_GET_PSIZE(bp), 1209 (u_longlong_t)BP_GET_FILL(bp), 1210 (u_longlong_t)bp->blk_birth, 1211 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 1212 } 1213 } 1214 1215 static void 1216 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb, 1217 const dnode_phys_t *dnp) 1218 { 1219 char blkbuf[BP_SPRINTF_LEN]; 1220 int l; 1221 1222 if (!BP_IS_EMBEDDED(bp)) { 1223 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 1224 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 1225 } 1226 1227 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 1228 1229 ASSERT(zb->zb_level >= 0); 1230 1231 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 1232 if (l == zb->zb_level) { 1233 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 1234 } else { 1235 (void) printf(" "); 1236 } 1237 } 1238 1239 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1240 (void) printf("%s\n", blkbuf); 1241 } 1242 1243 static int 1244 visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 1245 blkptr_t *bp, const zbookmark_phys_t *zb) 1246 { 1247 int err = 0; 1248 1249 if (bp->blk_birth == 0) 1250 return (0); 1251 1252 print_indirect(bp, zb, dnp); 1253 1254 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) { 1255 arc_flags_t flags = ARC_FLAG_WAIT; 1256 int i; 1257 blkptr_t *cbp; 1258 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 1259 arc_buf_t *buf; 1260 uint64_t fill = 0; 1261 1262 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 1263 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 1264 if (err) 1265 return (err); 1266 ASSERT(buf->b_data); 1267 1268 /* recursively visit blocks below this */ 1269 cbp = buf->b_data; 1270 for (i = 0; i < epb; i++, cbp++) { 1271 zbookmark_phys_t czb; 1272 1273 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 1274 zb->zb_level - 1, 1275 zb->zb_blkid * epb + i); 1276 err = visit_indirect(spa, dnp, cbp, &czb); 1277 if (err) 1278 break; 1279 fill += BP_GET_FILL(cbp); 1280 } 1281 if (!err) 1282 ASSERT3U(fill, ==, BP_GET_FILL(bp)); 1283 arc_buf_destroy(buf, &buf); 1284 } 1285 1286 return (err); 1287 } 1288 1289 /*ARGSUSED*/ 1290 static void 1291 dump_indirect(dnode_t *dn) 1292 { 1293 dnode_phys_t *dnp = dn->dn_phys; 1294 int j; 1295 zbookmark_phys_t czb; 1296 1297 (void) printf("Indirect blocks:\n"); 1298 1299 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 1300 dn->dn_object, dnp->dn_nlevels - 1, 0); 1301 for (j = 0; j < dnp->dn_nblkptr; j++) { 1302 czb.zb_blkid = j; 1303 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 1304 &dnp->dn_blkptr[j], &czb); 1305 } 1306 1307 (void) printf("\n"); 1308 } 1309 1310 /*ARGSUSED*/ 1311 static void 1312 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 1313 { 1314 dsl_dir_phys_t *dd = data; 1315 time_t crtime; 1316 char nice[32]; 1317 1318 if (dd == NULL) 1319 return; 1320 1321 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 1322 1323 crtime = dd->dd_creation_time; 1324 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1325 (void) printf("\t\thead_dataset_obj = %llu\n", 1326 (u_longlong_t)dd->dd_head_dataset_obj); 1327 (void) printf("\t\tparent_dir_obj = %llu\n", 1328 (u_longlong_t)dd->dd_parent_obj); 1329 (void) printf("\t\torigin_obj = %llu\n", 1330 (u_longlong_t)dd->dd_origin_obj); 1331 (void) printf("\t\tchild_dir_zapobj = %llu\n", 1332 (u_longlong_t)dd->dd_child_dir_zapobj); 1333 zdb_nicenum(dd->dd_used_bytes, nice); 1334 (void) printf("\t\tused_bytes = %s\n", nice); 1335 zdb_nicenum(dd->dd_compressed_bytes, nice); 1336 (void) printf("\t\tcompressed_bytes = %s\n", nice); 1337 zdb_nicenum(dd->dd_uncompressed_bytes, nice); 1338 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 1339 zdb_nicenum(dd->dd_quota, nice); 1340 (void) printf("\t\tquota = %s\n", nice); 1341 zdb_nicenum(dd->dd_reserved, nice); 1342 (void) printf("\t\treserved = %s\n", nice); 1343 (void) printf("\t\tprops_zapobj = %llu\n", 1344 (u_longlong_t)dd->dd_props_zapobj); 1345 (void) printf("\t\tdeleg_zapobj = %llu\n", 1346 (u_longlong_t)dd->dd_deleg_zapobj); 1347 (void) printf("\t\tflags = %llx\n", 1348 (u_longlong_t)dd->dd_flags); 1349 1350 #define DO(which) \ 1351 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \ 1352 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 1353 DO(HEAD); 1354 DO(SNAP); 1355 DO(CHILD); 1356 DO(CHILD_RSRV); 1357 DO(REFRSRV); 1358 #undef DO 1359 } 1360 1361 /*ARGSUSED*/ 1362 static void 1363 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 1364 { 1365 dsl_dataset_phys_t *ds = data; 1366 time_t crtime; 1367 char used[32], compressed[32], uncompressed[32], unique[32]; 1368 char blkbuf[BP_SPRINTF_LEN]; 1369 1370 if (ds == NULL) 1371 return; 1372 1373 ASSERT(size == sizeof (*ds)); 1374 crtime = ds->ds_creation_time; 1375 zdb_nicenum(ds->ds_referenced_bytes, used); 1376 zdb_nicenum(ds->ds_compressed_bytes, compressed); 1377 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed); 1378 zdb_nicenum(ds->ds_unique_bytes, unique); 1379 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp); 1380 1381 (void) printf("\t\tdir_obj = %llu\n", 1382 (u_longlong_t)ds->ds_dir_obj); 1383 (void) printf("\t\tprev_snap_obj = %llu\n", 1384 (u_longlong_t)ds->ds_prev_snap_obj); 1385 (void) printf("\t\tprev_snap_txg = %llu\n", 1386 (u_longlong_t)ds->ds_prev_snap_txg); 1387 (void) printf("\t\tnext_snap_obj = %llu\n", 1388 (u_longlong_t)ds->ds_next_snap_obj); 1389 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1390 (u_longlong_t)ds->ds_snapnames_zapobj); 1391 (void) printf("\t\tnum_children = %llu\n", 1392 (u_longlong_t)ds->ds_num_children); 1393 (void) printf("\t\tuserrefs_obj = %llu\n", 1394 (u_longlong_t)ds->ds_userrefs_obj); 1395 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1396 (void) printf("\t\tcreation_txg = %llu\n", 1397 (u_longlong_t)ds->ds_creation_txg); 1398 (void) printf("\t\tdeadlist_obj = %llu\n", 1399 (u_longlong_t)ds->ds_deadlist_obj); 1400 (void) printf("\t\tused_bytes = %s\n", used); 1401 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1402 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1403 (void) printf("\t\tunique = %s\n", unique); 1404 (void) printf("\t\tfsid_guid = %llu\n", 1405 (u_longlong_t)ds->ds_fsid_guid); 1406 (void) printf("\t\tguid = %llu\n", 1407 (u_longlong_t)ds->ds_guid); 1408 (void) printf("\t\tflags = %llx\n", 1409 (u_longlong_t)ds->ds_flags); 1410 (void) printf("\t\tnext_clones_obj = %llu\n", 1411 (u_longlong_t)ds->ds_next_clones_obj); 1412 (void) printf("\t\tprops_obj = %llu\n", 1413 (u_longlong_t)ds->ds_props_obj); 1414 (void) printf("\t\tbp = %s\n", blkbuf); 1415 } 1416 1417 /* ARGSUSED */ 1418 static int 1419 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1420 { 1421 char blkbuf[BP_SPRINTF_LEN]; 1422 1423 if (bp->blk_birth != 0) { 1424 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 1425 (void) printf("\t%s\n", blkbuf); 1426 } 1427 return (0); 1428 } 1429 1430 static void 1431 dump_bptree(objset_t *os, uint64_t obj, char *name) 1432 { 1433 char bytes[32]; 1434 bptree_phys_t *bt; 1435 dmu_buf_t *db; 1436 1437 if (dump_opt['d'] < 3) 1438 return; 1439 1440 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 1441 bt = db->db_data; 1442 zdb_nicenum(bt->bt_bytes, bytes); 1443 (void) printf("\n %s: %llu datasets, %s\n", 1444 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 1445 dmu_buf_rele(db, FTAG); 1446 1447 if (dump_opt['d'] < 5) 1448 return; 1449 1450 (void) printf("\n"); 1451 1452 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 1453 } 1454 1455 /* ARGSUSED */ 1456 static int 1457 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1458 { 1459 char blkbuf[BP_SPRINTF_LEN]; 1460 1461 ASSERT(bp->blk_birth != 0); 1462 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1463 (void) printf("\t%s\n", blkbuf); 1464 return (0); 1465 } 1466 1467 static void 1468 dump_full_bpobj(bpobj_t *bpo, char *name, int indent) 1469 { 1470 char bytes[32]; 1471 char comp[32]; 1472 char uncomp[32]; 1473 1474 if (dump_opt['d'] < 3) 1475 return; 1476 1477 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes); 1478 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1479 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp); 1480 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp); 1481 (void) printf(" %*s: object %llu, %llu local blkptrs, " 1482 "%llu subobjs in object %llu, %s (%s/%s comp)\n", 1483 indent * 8, name, 1484 (u_longlong_t)bpo->bpo_object, 1485 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1486 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 1487 (u_longlong_t)bpo->bpo_phys->bpo_subobjs, 1488 bytes, comp, uncomp); 1489 1490 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1491 uint64_t subobj; 1492 bpobj_t subbpo; 1493 int error; 1494 VERIFY0(dmu_read(bpo->bpo_os, 1495 bpo->bpo_phys->bpo_subobjs, 1496 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1497 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1498 if (error != 0) { 1499 (void) printf("ERROR %u while trying to open " 1500 "subobj id %llu\n", 1501 error, (u_longlong_t)subobj); 1502 continue; 1503 } 1504 dump_full_bpobj(&subbpo, "subobj", indent + 1); 1505 bpobj_close(&subbpo); 1506 } 1507 } else { 1508 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", 1509 indent * 8, name, 1510 (u_longlong_t)bpo->bpo_object, 1511 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1512 bytes); 1513 } 1514 1515 if (dump_opt['d'] < 5) 1516 return; 1517 1518 1519 if (indent == 0) { 1520 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 1521 (void) printf("\n"); 1522 } 1523 } 1524 1525 static void 1526 dump_deadlist(dsl_deadlist_t *dl) 1527 { 1528 dsl_deadlist_entry_t *dle; 1529 uint64_t unused; 1530 char bytes[32]; 1531 char comp[32]; 1532 char uncomp[32]; 1533 1534 if (dump_opt['d'] < 3) 1535 return; 1536 1537 if (dl->dl_oldfmt) { 1538 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0); 1539 return; 1540 } 1541 1542 zdb_nicenum(dl->dl_phys->dl_used, bytes); 1543 zdb_nicenum(dl->dl_phys->dl_comp, comp); 1544 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp); 1545 (void) printf("\n Deadlist: %s (%s/%s comp)\n", 1546 bytes, comp, uncomp); 1547 1548 if (dump_opt['d'] < 4) 1549 return; 1550 1551 (void) printf("\n"); 1552 1553 /* force the tree to be loaded */ 1554 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); 1555 1556 for (dle = avl_first(&dl->dl_tree); dle; 1557 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1558 if (dump_opt['d'] >= 5) { 1559 char buf[128]; 1560 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ", 1561 (longlong_t)dle->dle_mintxg, 1562 (longlong_t)dle->dle_bpobj.bpo_object); 1563 1564 dump_full_bpobj(&dle->dle_bpobj, buf, 0); 1565 } else { 1566 (void) printf("mintxg %llu -> obj %llu\n", 1567 (longlong_t)dle->dle_mintxg, 1568 (longlong_t)dle->dle_bpobj.bpo_object); 1569 1570 } 1571 } 1572 } 1573 1574 static avl_tree_t idx_tree; 1575 static avl_tree_t domain_tree; 1576 static boolean_t fuid_table_loaded; 1577 static boolean_t sa_loaded; 1578 sa_attr_type_t *sa_attr_table; 1579 1580 static void 1581 fuid_table_destroy() 1582 { 1583 if (fuid_table_loaded) { 1584 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 1585 fuid_table_loaded = B_FALSE; 1586 } 1587 } 1588 1589 /* 1590 * print uid or gid information. 1591 * For normal POSIX id just the id is printed in decimal format. 1592 * For CIFS files with FUID the fuid is printed in hex followed by 1593 * the domain-rid string. 1594 */ 1595 static void 1596 print_idstr(uint64_t id, const char *id_type) 1597 { 1598 if (FUID_INDEX(id)) { 1599 char *domain; 1600 1601 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 1602 (void) printf("\t%s %llx [%s-%d]\n", id_type, 1603 (u_longlong_t)id, domain, (int)FUID_RID(id)); 1604 } else { 1605 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 1606 } 1607 1608 } 1609 1610 static void 1611 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 1612 { 1613 uint32_t uid_idx, gid_idx; 1614 1615 uid_idx = FUID_INDEX(uid); 1616 gid_idx = FUID_INDEX(gid); 1617 1618 /* Load domain table, if not already loaded */ 1619 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 1620 uint64_t fuid_obj; 1621 1622 /* first find the fuid object. It lives in the master node */ 1623 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 1624 8, 1, &fuid_obj) == 0); 1625 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 1626 (void) zfs_fuid_table_load(os, fuid_obj, 1627 &idx_tree, &domain_tree); 1628 fuid_table_loaded = B_TRUE; 1629 } 1630 1631 print_idstr(uid, "uid"); 1632 print_idstr(gid, "gid"); 1633 } 1634 1635 /*ARGSUSED*/ 1636 static void 1637 dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 1638 { 1639 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 1640 sa_handle_t *hdl; 1641 uint64_t xattr, rdev, gen; 1642 uint64_t uid, gid, mode, fsize, parent, links; 1643 uint64_t pflags; 1644 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 1645 time_t z_crtime, z_atime, z_mtime, z_ctime; 1646 sa_bulk_attr_t bulk[12]; 1647 int idx = 0; 1648 int error; 1649 1650 if (!sa_loaded) { 1651 uint64_t sa_attrs = 0; 1652 uint64_t version; 1653 1654 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR, 1655 8, 1, &version) == 0); 1656 if (version >= ZPL_VERSION_SA) { 1657 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 1658 8, 1, &sa_attrs) == 0); 1659 } 1660 if ((error = sa_setup(os, sa_attrs, zfs_attr_table, 1661 ZPL_END, &sa_attr_table)) != 0) { 1662 (void) printf("sa_setup failed errno %d, can't " 1663 "display znode contents\n", error); 1664 return; 1665 } 1666 sa_loaded = B_TRUE; 1667 } 1668 1669 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 1670 (void) printf("Failed to get handle for SA znode\n"); 1671 return; 1672 } 1673 1674 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 1675 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 1676 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 1677 &links, 8); 1678 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 1679 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 1680 &mode, 8); 1681 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 1682 NULL, &parent, 8); 1683 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 1684 &fsize, 8); 1685 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 1686 acctm, 16); 1687 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 1688 modtm, 16); 1689 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 1690 crtm, 16); 1691 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 1692 chgtm, 16); 1693 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 1694 &pflags, 8); 1695 1696 if (sa_bulk_lookup(hdl, bulk, idx)) { 1697 (void) sa_handle_destroy(hdl); 1698 return; 1699 } 1700 1701 error = zfs_obj_to_path(os, object, path, sizeof (path)); 1702 if (error != 0) { 1703 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>", 1704 (u_longlong_t)object); 1705 } 1706 if (dump_opt['d'] < 3) { 1707 (void) printf("\t%s\n", path); 1708 (void) sa_handle_destroy(hdl); 1709 return; 1710 } 1711 1712 z_crtime = (time_t)crtm[0]; 1713 z_atime = (time_t)acctm[0]; 1714 z_mtime = (time_t)modtm[0]; 1715 z_ctime = (time_t)chgtm[0]; 1716 1717 (void) printf("\tpath %s\n", path); 1718 dump_uidgid(os, uid, gid); 1719 (void) printf("\tatime %s", ctime(&z_atime)); 1720 (void) printf("\tmtime %s", ctime(&z_mtime)); 1721 (void) printf("\tctime %s", ctime(&z_ctime)); 1722 (void) printf("\tcrtime %s", ctime(&z_crtime)); 1723 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 1724 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 1725 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 1726 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 1727 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 1728 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 1729 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 1730 sizeof (uint64_t)) == 0) 1731 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 1732 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 1733 sizeof (uint64_t)) == 0) 1734 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 1735 sa_handle_destroy(hdl); 1736 } 1737 1738 /*ARGSUSED*/ 1739 static void 1740 dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 1741 { 1742 } 1743 1744 /*ARGSUSED*/ 1745 static void 1746 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 1747 { 1748 } 1749 1750 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 1751 dump_none, /* unallocated */ 1752 dump_zap, /* object directory */ 1753 dump_uint64, /* object array */ 1754 dump_none, /* packed nvlist */ 1755 dump_packed_nvlist, /* packed nvlist size */ 1756 dump_none, /* bpobj */ 1757 dump_bpobj, /* bpobj header */ 1758 dump_none, /* SPA space map header */ 1759 dump_none, /* SPA space map */ 1760 dump_none, /* ZIL intent log */ 1761 dump_dnode, /* DMU dnode */ 1762 dump_dmu_objset, /* DMU objset */ 1763 dump_dsl_dir, /* DSL directory */ 1764 dump_zap, /* DSL directory child map */ 1765 dump_zap, /* DSL dataset snap map */ 1766 dump_zap, /* DSL props */ 1767 dump_dsl_dataset, /* DSL dataset */ 1768 dump_znode, /* ZFS znode */ 1769 dump_acl, /* ZFS V0 ACL */ 1770 dump_uint8, /* ZFS plain file */ 1771 dump_zpldir, /* ZFS directory */ 1772 dump_zap, /* ZFS master node */ 1773 dump_zap, /* ZFS delete queue */ 1774 dump_uint8, /* zvol object */ 1775 dump_zap, /* zvol prop */ 1776 dump_uint8, /* other uint8[] */ 1777 dump_uint64, /* other uint64[] */ 1778 dump_zap, /* other ZAP */ 1779 dump_zap, /* persistent error log */ 1780 dump_uint8, /* SPA history */ 1781 dump_history_offsets, /* SPA history offsets */ 1782 dump_zap, /* Pool properties */ 1783 dump_zap, /* DSL permissions */ 1784 dump_acl, /* ZFS ACL */ 1785 dump_uint8, /* ZFS SYSACL */ 1786 dump_none, /* FUID nvlist */ 1787 dump_packed_nvlist, /* FUID nvlist size */ 1788 dump_zap, /* DSL dataset next clones */ 1789 dump_zap, /* DSL scrub queue */ 1790 dump_zap, /* ZFS user/group used */ 1791 dump_zap, /* ZFS user/group quota */ 1792 dump_zap, /* snapshot refcount tags */ 1793 dump_ddt_zap, /* DDT ZAP object */ 1794 dump_zap, /* DDT statistics */ 1795 dump_znode, /* SA object */ 1796 dump_zap, /* SA Master Node */ 1797 dump_sa_attrs, /* SA attribute registration */ 1798 dump_sa_layouts, /* SA attribute layouts */ 1799 dump_zap, /* DSL scrub translations */ 1800 dump_none, /* fake dedup BP */ 1801 dump_zap, /* deadlist */ 1802 dump_none, /* deadlist hdr */ 1803 dump_zap, /* dsl clones */ 1804 dump_bpobj_subobjs, /* bpobj subobjs */ 1805 dump_unknown, /* Unknown type, must be last */ 1806 }; 1807 1808 static void 1809 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1810 { 1811 dmu_buf_t *db = NULL; 1812 dmu_object_info_t doi; 1813 dnode_t *dn; 1814 void *bonus = NULL; 1815 size_t bsize = 0; 1816 char iblk[32], dblk[32], lsize[32], asize[32], fill[32]; 1817 char bonus_size[32]; 1818 char aux[50]; 1819 int error; 1820 1821 if (*print_header) { 1822 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n", 1823 "Object", "lvl", "iblk", "dblk", "dsize", "lsize", 1824 "%full", "type"); 1825 *print_header = 0; 1826 } 1827 1828 if (object == 0) { 1829 dn = DMU_META_DNODE(os); 1830 } else { 1831 error = dmu_bonus_hold(os, object, FTAG, &db); 1832 if (error) 1833 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1834 object, error); 1835 bonus = db->db_data; 1836 bsize = db->db_size; 1837 dn = DB_DNODE((dmu_buf_impl_t *)db); 1838 } 1839 dmu_object_info_from_dnode(dn, &doi); 1840 1841 zdb_nicenum(doi.doi_metadata_block_size, iblk); 1842 zdb_nicenum(doi.doi_data_block_size, dblk); 1843 zdb_nicenum(doi.doi_max_offset, lsize); 1844 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize); 1845 zdb_nicenum(doi.doi_bonus_size, bonus_size); 1846 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 1847 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 1848 doi.doi_max_offset); 1849 1850 aux[0] = '\0'; 1851 1852 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1853 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1854 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 1855 } 1856 1857 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1858 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1859 ZDB_COMPRESS_NAME(doi.doi_compress)); 1860 } 1861 1862 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n", 1863 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 1864 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 1865 1866 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1867 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n", 1868 "", "", "", "", "", bonus_size, "bonus", 1869 ZDB_OT_NAME(doi.doi_bonus_type)); 1870 } 1871 1872 if (verbosity >= 4) { 1873 (void) printf("\tdnode flags: %s%s%s\n", 1874 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 1875 "USED_BYTES " : "", 1876 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 1877 "USERUSED_ACCOUNTED " : "", 1878 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 1879 "SPILL_BLKPTR" : ""); 1880 (void) printf("\tdnode maxblkid: %llu\n", 1881 (longlong_t)dn->dn_phys->dn_maxblkid); 1882 1883 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, 1884 bonus, bsize); 1885 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); 1886 *print_header = 1; 1887 } 1888 1889 if (verbosity >= 5) 1890 dump_indirect(dn); 1891 1892 if (verbosity >= 5) { 1893 /* 1894 * Report the list of segments that comprise the object. 1895 */ 1896 uint64_t start = 0; 1897 uint64_t end; 1898 uint64_t blkfill = 1; 1899 int minlvl = 1; 1900 1901 if (dn->dn_type == DMU_OT_DNODE) { 1902 minlvl = 0; 1903 blkfill = DNODES_PER_BLOCK; 1904 } 1905 1906 for (;;) { 1907 char segsize[32]; 1908 error = dnode_next_offset(dn, 1909 0, &start, minlvl, blkfill, 0); 1910 if (error) 1911 break; 1912 end = start; 1913 error = dnode_next_offset(dn, 1914 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 1915 zdb_nicenum(end - start, segsize); 1916 (void) printf("\t\tsegment [%016llx, %016llx)" 1917 " size %5s\n", (u_longlong_t)start, 1918 (u_longlong_t)end, segsize); 1919 if (error) 1920 break; 1921 start = end; 1922 } 1923 } 1924 1925 if (db != NULL) 1926 dmu_buf_rele(db, FTAG); 1927 } 1928 1929 static char *objset_types[DMU_OST_NUMTYPES] = { 1930 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1931 1932 static void 1933 dump_dir(objset_t *os) 1934 { 1935 dmu_objset_stats_t dds; 1936 uint64_t object, object_count; 1937 uint64_t refdbytes, usedobjs, scratch; 1938 char numbuf[32]; 1939 char blkbuf[BP_SPRINTF_LEN + 20]; 1940 char osname[ZFS_MAX_DATASET_NAME_LEN]; 1941 char *type = "UNKNOWN"; 1942 int verbosity = dump_opt['d']; 1943 int print_header = 1; 1944 int i, error; 1945 1946 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 1947 dmu_objset_fast_stat(os, &dds); 1948 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 1949 1950 if (dds.dds_type < DMU_OST_NUMTYPES) 1951 type = objset_types[dds.dds_type]; 1952 1953 if (dds.dds_type == DMU_OST_META) { 1954 dds.dds_creation_txg = TXG_INITIAL; 1955 usedobjs = BP_GET_FILL(os->os_rootbp); 1956 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)-> 1957 dd_used_bytes; 1958 } else { 1959 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 1960 } 1961 1962 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp)); 1963 1964 zdb_nicenum(refdbytes, numbuf); 1965 1966 if (verbosity >= 4) { 1967 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp "); 1968 (void) snprintf_blkptr(blkbuf + strlen(blkbuf), 1969 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp); 1970 } else { 1971 blkbuf[0] = '\0'; 1972 } 1973 1974 dmu_objset_name(os, osname); 1975 1976 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 1977 "%s, %llu objects%s\n", 1978 osname, type, (u_longlong_t)dmu_objset_id(os), 1979 (u_longlong_t)dds.dds_creation_txg, 1980 numbuf, (u_longlong_t)usedobjs, blkbuf); 1981 1982 if (zopt_objects != 0) { 1983 for (i = 0; i < zopt_objects; i++) 1984 dump_object(os, zopt_object[i], verbosity, 1985 &print_header); 1986 (void) printf("\n"); 1987 return; 1988 } 1989 1990 if (dump_opt['i'] != 0 || verbosity >= 2) 1991 dump_intent_log(dmu_objset_zil(os)); 1992 1993 if (dmu_objset_ds(os) != NULL) 1994 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist); 1995 1996 if (verbosity < 2) 1997 return; 1998 1999 if (BP_IS_HOLE(os->os_rootbp)) 2000 return; 2001 2002 dump_object(os, 0, verbosity, &print_header); 2003 object_count = 0; 2004 if (DMU_USERUSED_DNODE(os) != NULL && 2005 DMU_USERUSED_DNODE(os)->dn_type != 0) { 2006 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 2007 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 2008 } 2009 2010 object = 0; 2011 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 2012 dump_object(os, object, verbosity, &print_header); 2013 object_count++; 2014 } 2015 2016 ASSERT3U(object_count, ==, usedobjs); 2017 2018 (void) printf("\n"); 2019 2020 if (error != ESRCH) { 2021 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 2022 abort(); 2023 } 2024 } 2025 2026 static void 2027 dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 2028 { 2029 time_t timestamp = ub->ub_timestamp; 2030 2031 (void) printf(header ? header : ""); 2032 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 2033 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 2034 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 2035 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 2036 (void) printf("\ttimestamp = %llu UTC = %s", 2037 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 2038 if (dump_opt['u'] >= 3) { 2039 char blkbuf[BP_SPRINTF_LEN]; 2040 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp); 2041 (void) printf("\trootbp = %s\n", blkbuf); 2042 } 2043 (void) printf(footer ? footer : ""); 2044 } 2045 2046 static void 2047 dump_config(spa_t *spa) 2048 { 2049 dmu_buf_t *db; 2050 size_t nvsize = 0; 2051 int error = 0; 2052 2053 2054 error = dmu_bonus_hold(spa->spa_meta_objset, 2055 spa->spa_config_object, FTAG, &db); 2056 2057 if (error == 0) { 2058 nvsize = *(uint64_t *)db->db_data; 2059 dmu_buf_rele(db, FTAG); 2060 2061 (void) printf("\nMOS Configuration:\n"); 2062 dump_packed_nvlist(spa->spa_meta_objset, 2063 spa->spa_config_object, (void *)&nvsize, 1); 2064 } else { 2065 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 2066 (u_longlong_t)spa->spa_config_object, error); 2067 } 2068 } 2069 2070 static void 2071 dump_cachefile(const char *cachefile) 2072 { 2073 int fd; 2074 struct stat64 statbuf; 2075 char *buf; 2076 nvlist_t *config; 2077 2078 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 2079 (void) printf("cannot open '%s': %s\n", cachefile, 2080 strerror(errno)); 2081 exit(1); 2082 } 2083 2084 if (fstat64(fd, &statbuf) != 0) { 2085 (void) printf("failed to stat '%s': %s\n", cachefile, 2086 strerror(errno)); 2087 exit(1); 2088 } 2089 2090 if ((buf = malloc(statbuf.st_size)) == NULL) { 2091 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 2092 (u_longlong_t)statbuf.st_size); 2093 exit(1); 2094 } 2095 2096 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 2097 (void) fprintf(stderr, "failed to read %llu bytes\n", 2098 (u_longlong_t)statbuf.st_size); 2099 exit(1); 2100 } 2101 2102 (void) close(fd); 2103 2104 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 2105 (void) fprintf(stderr, "failed to unpack nvlist\n"); 2106 exit(1); 2107 } 2108 2109 free(buf); 2110 2111 dump_nvlist(config, 0); 2112 2113 nvlist_free(config); 2114 } 2115 2116 #define ZDB_MAX_UB_HEADER_SIZE 32 2117 2118 static void 2119 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) 2120 { 2121 vdev_t vd; 2122 vdev_t *vdp = &vd; 2123 char header[ZDB_MAX_UB_HEADER_SIZE]; 2124 2125 vd.vdev_ashift = ashift; 2126 vdp->vdev_top = vdp; 2127 2128 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { 2129 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); 2130 uberblock_t *ub = (void *)((char *)lbl + uoff); 2131 2132 if (uberblock_verify(ub)) 2133 continue; 2134 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 2135 "Uberblock[%d]\n", i); 2136 dump_uberblock(ub, header, ""); 2137 } 2138 } 2139 2140 static void 2141 dump_label(const char *dev) 2142 { 2143 int fd; 2144 vdev_label_t label; 2145 char *path, *buf = label.vl_vdev_phys.vp_nvlist; 2146 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 2147 struct stat64 statbuf; 2148 uint64_t psize, ashift; 2149 int len = strlen(dev) + 1; 2150 2151 if (strncmp(dev, ZFS_DISK_ROOTD, strlen(ZFS_DISK_ROOTD)) == 0) { 2152 len++; 2153 path = malloc(len); 2154 (void) snprintf(path, len, "%s%s", ZFS_RDISK_ROOTD, 2155 dev + strlen(ZFS_DISK_ROOTD)); 2156 } else { 2157 path = strdup(dev); 2158 } 2159 2160 if ((fd = open64(path, O_RDONLY)) < 0) { 2161 (void) printf("cannot open '%s': %s\n", path, strerror(errno)); 2162 free(path); 2163 exit(1); 2164 } 2165 2166 if (fstat64(fd, &statbuf) != 0) { 2167 (void) printf("failed to stat '%s': %s\n", path, 2168 strerror(errno)); 2169 free(path); 2170 (void) close(fd); 2171 exit(1); 2172 } 2173 2174 if (S_ISBLK(statbuf.st_mode)) { 2175 (void) printf("cannot use '%s': character device required\n", 2176 path); 2177 free(path); 2178 (void) close(fd); 2179 exit(1); 2180 } 2181 2182 psize = statbuf.st_size; 2183 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 2184 2185 for (int l = 0; l < VDEV_LABELS; l++) { 2186 nvlist_t *config = NULL; 2187 2188 (void) printf("--------------------------------------------\n"); 2189 (void) printf("LABEL %d\n", l); 2190 (void) printf("--------------------------------------------\n"); 2191 2192 if (pread64(fd, &label, sizeof (label), 2193 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 2194 (void) printf("failed to read label %d\n", l); 2195 continue; 2196 } 2197 2198 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 2199 (void) printf("failed to unpack label %d\n", l); 2200 ashift = SPA_MINBLOCKSHIFT; 2201 } else { 2202 nvlist_t *vdev_tree = NULL; 2203 2204 dump_nvlist(config, 4); 2205 if ((nvlist_lookup_nvlist(config, 2206 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 2207 (nvlist_lookup_uint64(vdev_tree, 2208 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 2209 ashift = SPA_MINBLOCKSHIFT; 2210 nvlist_free(config); 2211 } 2212 if (dump_opt['u']) 2213 dump_label_uberblocks(&label, ashift); 2214 } 2215 2216 free(path); 2217 (void) close(fd); 2218 } 2219 2220 static uint64_t dataset_feature_count[SPA_FEATURES]; 2221 2222 /*ARGSUSED*/ 2223 static int 2224 dump_one_dir(const char *dsname, void *arg) 2225 { 2226 int error; 2227 objset_t *os; 2228 2229 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os); 2230 if (error) { 2231 (void) printf("Could not open %s, error %d\n", dsname, error); 2232 return (0); 2233 } 2234 2235 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) { 2236 if (!dmu_objset_ds(os)->ds_feature_inuse[f]) 2237 continue; 2238 ASSERT(spa_feature_table[f].fi_flags & 2239 ZFEATURE_FLAG_PER_DATASET); 2240 dataset_feature_count[f]++; 2241 } 2242 2243 dump_dir(os); 2244 dmu_objset_disown(os, FTAG); 2245 fuid_table_destroy(); 2246 sa_loaded = B_FALSE; 2247 return (0); 2248 } 2249 2250 /* 2251 * Block statistics. 2252 */ 2253 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2) 2254 typedef struct zdb_blkstats { 2255 uint64_t zb_asize; 2256 uint64_t zb_lsize; 2257 uint64_t zb_psize; 2258 uint64_t zb_count; 2259 uint64_t zb_gangs; 2260 uint64_t zb_ditto_samevdev; 2261 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 2262 } zdb_blkstats_t; 2263 2264 /* 2265 * Extended object types to report deferred frees and dedup auto-ditto blocks. 2266 */ 2267 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 2268 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 2269 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 2270 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 2271 2272 static char *zdb_ot_extname[] = { 2273 "deferred free", 2274 "dedup ditto", 2275 "other", 2276 "Total", 2277 }; 2278 2279 #define ZB_TOTAL DN_MAX_LEVELS 2280 2281 typedef struct zdb_cb { 2282 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 2283 uint64_t zcb_dedup_asize; 2284 uint64_t zcb_dedup_blocks; 2285 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES]; 2286 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES] 2287 [BPE_PAYLOAD_SIZE]; 2288 uint64_t zcb_start; 2289 uint64_t zcb_lastprint; 2290 uint64_t zcb_totalasize; 2291 uint64_t zcb_errors[256]; 2292 int zcb_readfails; 2293 int zcb_haderrors; 2294 spa_t *zcb_spa; 2295 } zdb_cb_t; 2296 2297 static void 2298 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 2299 dmu_object_type_t type) 2300 { 2301 uint64_t refcnt = 0; 2302 2303 ASSERT(type < ZDB_OT_TOTAL); 2304 2305 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 2306 return; 2307 2308 for (int i = 0; i < 4; i++) { 2309 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 2310 int t = (i & 1) ? type : ZDB_OT_TOTAL; 2311 int equal; 2312 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 2313 2314 zb->zb_asize += BP_GET_ASIZE(bp); 2315 zb->zb_lsize += BP_GET_LSIZE(bp); 2316 zb->zb_psize += BP_GET_PSIZE(bp); 2317 zb->zb_count++; 2318 2319 /* 2320 * The histogram is only big enough to record blocks up to 2321 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last, 2322 * "other", bucket. 2323 */ 2324 int idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT; 2325 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1); 2326 zb->zb_psize_histogram[idx]++; 2327 2328 zb->zb_gangs += BP_COUNT_GANG(bp); 2329 2330 switch (BP_GET_NDVAS(bp)) { 2331 case 2: 2332 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 2333 DVA_GET_VDEV(&bp->blk_dva[1])) 2334 zb->zb_ditto_samevdev++; 2335 break; 2336 case 3: 2337 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == 2338 DVA_GET_VDEV(&bp->blk_dva[1])) + 2339 (DVA_GET_VDEV(&bp->blk_dva[0]) == 2340 DVA_GET_VDEV(&bp->blk_dva[2])) + 2341 (DVA_GET_VDEV(&bp->blk_dva[1]) == 2342 DVA_GET_VDEV(&bp->blk_dva[2])); 2343 if (equal != 0) 2344 zb->zb_ditto_samevdev++; 2345 break; 2346 } 2347 2348 } 2349 2350 if (BP_IS_EMBEDDED(bp)) { 2351 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++; 2352 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)] 2353 [BPE_GET_PSIZE(bp)]++; 2354 return; 2355 } 2356 2357 if (dump_opt['L']) 2358 return; 2359 2360 if (BP_GET_DEDUP(bp)) { 2361 ddt_t *ddt; 2362 ddt_entry_t *dde; 2363 2364 ddt = ddt_select(zcb->zcb_spa, bp); 2365 ddt_enter(ddt); 2366 dde = ddt_lookup(ddt, bp, B_FALSE); 2367 2368 if (dde == NULL) { 2369 refcnt = 0; 2370 } else { 2371 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 2372 ddt_phys_decref(ddp); 2373 refcnt = ddp->ddp_refcnt; 2374 if (ddt_phys_total_refcnt(dde) == 0) 2375 ddt_remove(ddt, dde); 2376 } 2377 ddt_exit(ddt); 2378 } 2379 2380 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 2381 refcnt ? 0 : spa_first_txg(zcb->zcb_spa), 2382 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 2383 } 2384 2385 static void 2386 zdb_blkptr_done(zio_t *zio) 2387 { 2388 spa_t *spa = zio->io_spa; 2389 blkptr_t *bp = zio->io_bp; 2390 int ioerr = zio->io_error; 2391 zdb_cb_t *zcb = zio->io_private; 2392 zbookmark_phys_t *zb = &zio->io_bookmark; 2393 2394 zio_data_buf_free(zio->io_data, zio->io_size); 2395 2396 mutex_enter(&spa->spa_scrub_lock); 2397 spa->spa_scrub_inflight--; 2398 cv_broadcast(&spa->spa_scrub_io_cv); 2399 2400 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 2401 char blkbuf[BP_SPRINTF_LEN]; 2402 2403 zcb->zcb_haderrors = 1; 2404 zcb->zcb_errors[ioerr]++; 2405 2406 if (dump_opt['b'] >= 2) 2407 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2408 else 2409 blkbuf[0] = '\0'; 2410 2411 (void) printf("zdb_blkptr_cb: " 2412 "Got error %d reading " 2413 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 2414 ioerr, 2415 (u_longlong_t)zb->zb_objset, 2416 (u_longlong_t)zb->zb_object, 2417 (u_longlong_t)zb->zb_level, 2418 (u_longlong_t)zb->zb_blkid, 2419 blkbuf); 2420 } 2421 mutex_exit(&spa->spa_scrub_lock); 2422 } 2423 2424 static int 2425 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2426 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 2427 { 2428 zdb_cb_t *zcb = arg; 2429 dmu_object_type_t type; 2430 boolean_t is_metadata; 2431 2432 if (bp == NULL) 2433 return (0); 2434 2435 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) { 2436 char blkbuf[BP_SPRINTF_LEN]; 2437 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2438 (void) printf("objset %llu object %llu " 2439 "level %lld offset 0x%llx %s\n", 2440 (u_longlong_t)zb->zb_objset, 2441 (u_longlong_t)zb->zb_object, 2442 (longlong_t)zb->zb_level, 2443 (u_longlong_t)blkid2offset(dnp, bp, zb), 2444 blkbuf); 2445 } 2446 2447 if (BP_IS_HOLE(bp)) 2448 return (0); 2449 2450 type = BP_GET_TYPE(bp); 2451 2452 zdb_count_block(zcb, zilog, bp, 2453 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 2454 2455 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 2456 2457 if (!BP_IS_EMBEDDED(bp) && 2458 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) { 2459 size_t size = BP_GET_PSIZE(bp); 2460 void *data = zio_data_buf_alloc(size); 2461 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 2462 2463 /* If it's an intent log block, failure is expected. */ 2464 if (zb->zb_level == ZB_ZIL_LEVEL) 2465 flags |= ZIO_FLAG_SPECULATIVE; 2466 2467 mutex_enter(&spa->spa_scrub_lock); 2468 while (spa->spa_scrub_inflight > max_inflight) 2469 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 2470 spa->spa_scrub_inflight++; 2471 mutex_exit(&spa->spa_scrub_lock); 2472 2473 zio_nowait(zio_read(NULL, spa, bp, data, size, 2474 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 2475 } 2476 2477 zcb->zcb_readfails = 0; 2478 2479 /* only call gethrtime() every 100 blocks */ 2480 static int iters; 2481 if (++iters > 100) 2482 iters = 0; 2483 else 2484 return (0); 2485 2486 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) { 2487 uint64_t now = gethrtime(); 2488 char buf[10]; 2489 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 2490 int kb_per_sec = 2491 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 2492 int sec_remaining = 2493 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 2494 2495 zfs_nicenum(bytes, buf, sizeof (buf)); 2496 (void) fprintf(stderr, 2497 "\r%5s completed (%4dMB/s) " 2498 "estimated time remaining: %uhr %02umin %02usec ", 2499 buf, kb_per_sec / 1024, 2500 sec_remaining / 60 / 60, 2501 sec_remaining / 60 % 60, 2502 sec_remaining % 60); 2503 2504 zcb->zcb_lastprint = now; 2505 } 2506 2507 return (0); 2508 } 2509 2510 static void 2511 zdb_leak(void *arg, uint64_t start, uint64_t size) 2512 { 2513 vdev_t *vd = arg; 2514 2515 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 2516 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 2517 } 2518 2519 static metaslab_ops_t zdb_metaslab_ops = { 2520 NULL /* alloc */ 2521 }; 2522 2523 static void 2524 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 2525 { 2526 ddt_bookmark_t ddb = { 0 }; 2527 ddt_entry_t dde; 2528 int error; 2529 2530 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 2531 blkptr_t blk; 2532 ddt_phys_t *ddp = dde.dde_phys; 2533 2534 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 2535 return; 2536 2537 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 2538 2539 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 2540 if (ddp->ddp_phys_birth == 0) 2541 continue; 2542 ddt_bp_create(ddb.ddb_checksum, 2543 &dde.dde_key, ddp, &blk); 2544 if (p == DDT_PHYS_DITTO) { 2545 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 2546 } else { 2547 zcb->zcb_dedup_asize += 2548 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 2549 zcb->zcb_dedup_blocks++; 2550 } 2551 } 2552 if (!dump_opt['L']) { 2553 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 2554 ddt_enter(ddt); 2555 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 2556 ddt_exit(ddt); 2557 } 2558 } 2559 2560 ASSERT(error == ENOENT); 2561 } 2562 2563 static void 2564 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 2565 { 2566 zcb->zcb_spa = spa; 2567 2568 if (!dump_opt['L']) { 2569 vdev_t *rvd = spa->spa_root_vdev; 2570 for (uint64_t c = 0; c < rvd->vdev_children; c++) { 2571 vdev_t *vd = rvd->vdev_child[c]; 2572 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 2573 metaslab_t *msp = vd->vdev_ms[m]; 2574 mutex_enter(&msp->ms_lock); 2575 metaslab_unload(msp); 2576 2577 /* 2578 * For leak detection, we overload the metaslab 2579 * ms_tree to contain allocated segments 2580 * instead of free segments. As a result, 2581 * we can't use the normal metaslab_load/unload 2582 * interfaces. 2583 */ 2584 if (msp->ms_sm != NULL) { 2585 (void) fprintf(stderr, 2586 "\rloading space map for " 2587 "vdev %llu of %llu, " 2588 "metaslab %llu of %llu ...", 2589 (longlong_t)c, 2590 (longlong_t)rvd->vdev_children, 2591 (longlong_t)m, 2592 (longlong_t)vd->vdev_ms_count); 2593 2594 msp->ms_ops = &zdb_metaslab_ops; 2595 2596 /* 2597 * We don't want to spend the CPU 2598 * manipulating the size-ordered 2599 * tree, so clear the range_tree 2600 * ops. 2601 */ 2602 msp->ms_tree->rt_ops = NULL; 2603 VERIFY0(space_map_load(msp->ms_sm, 2604 msp->ms_tree, SM_ALLOC)); 2605 msp->ms_loaded = B_TRUE; 2606 } 2607 mutex_exit(&msp->ms_lock); 2608 } 2609 } 2610 (void) fprintf(stderr, "\n"); 2611 } 2612 2613 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2614 2615 zdb_ddt_leak_init(spa, zcb); 2616 2617 spa_config_exit(spa, SCL_CONFIG, FTAG); 2618 } 2619 2620 static void 2621 zdb_leak_fini(spa_t *spa) 2622 { 2623 if (!dump_opt['L']) { 2624 vdev_t *rvd = spa->spa_root_vdev; 2625 for (int c = 0; c < rvd->vdev_children; c++) { 2626 vdev_t *vd = rvd->vdev_child[c]; 2627 for (int m = 0; m < vd->vdev_ms_count; m++) { 2628 metaslab_t *msp = vd->vdev_ms[m]; 2629 mutex_enter(&msp->ms_lock); 2630 2631 /* 2632 * The ms_tree has been overloaded to 2633 * contain allocated segments. Now that we 2634 * finished traversing all blocks, any 2635 * block that remains in the ms_tree 2636 * represents an allocated block that we 2637 * did not claim during the traversal. 2638 * Claimed blocks would have been removed 2639 * from the ms_tree. 2640 */ 2641 range_tree_vacate(msp->ms_tree, zdb_leak, vd); 2642 msp->ms_loaded = B_FALSE; 2643 2644 mutex_exit(&msp->ms_lock); 2645 } 2646 } 2647 } 2648 } 2649 2650 /* ARGSUSED */ 2651 static int 2652 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 2653 { 2654 zdb_cb_t *zcb = arg; 2655 2656 if (dump_opt['b'] >= 5) { 2657 char blkbuf[BP_SPRINTF_LEN]; 2658 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2659 (void) printf("[%s] %s\n", 2660 "deferred free", blkbuf); 2661 } 2662 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 2663 return (0); 2664 } 2665 2666 static int 2667 dump_block_stats(spa_t *spa) 2668 { 2669 zdb_cb_t zcb = { 0 }; 2670 zdb_blkstats_t *zb, *tzb; 2671 uint64_t norm_alloc, norm_space, total_alloc, total_found; 2672 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; 2673 boolean_t leaks = B_FALSE; 2674 2675 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 2676 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 2677 (dump_opt['c'] == 1) ? "metadata " : "", 2678 dump_opt['c'] ? "checksums " : "", 2679 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 2680 !dump_opt['L'] ? "nothing leaked " : ""); 2681 2682 /* 2683 * Load all space maps as SM_ALLOC maps, then traverse the pool 2684 * claiming each block we discover. If the pool is perfectly 2685 * consistent, the space maps will be empty when we're done. 2686 * Anything left over is a leak; any block we can't claim (because 2687 * it's not part of any space map) is a double allocation, 2688 * reference to a freed block, or an unclaimed log block. 2689 */ 2690 zdb_leak_init(spa, &zcb); 2691 2692 /* 2693 * If there's a deferred-free bplist, process that first. 2694 */ 2695 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 2696 count_block_cb, &zcb, NULL); 2697 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2698 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 2699 count_block_cb, &zcb, NULL); 2700 } 2701 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 2702 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 2703 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 2704 &zcb, NULL)); 2705 } 2706 2707 if (dump_opt['c'] > 1) 2708 flags |= TRAVERSE_PREFETCH_DATA; 2709 2710 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 2711 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 2712 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 2713 2714 /* 2715 * If we've traversed the data blocks then we need to wait for those 2716 * I/Os to complete. We leverage "The Godfather" zio to wait on 2717 * all async I/Os to complete. 2718 */ 2719 if (dump_opt['c']) { 2720 for (int i = 0; i < max_ncpus; i++) { 2721 (void) zio_wait(spa->spa_async_zio_root[i]); 2722 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL, 2723 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 2724 ZIO_FLAG_GODFATHER); 2725 } 2726 } 2727 2728 if (zcb.zcb_haderrors) { 2729 (void) printf("\nError counts:\n\n"); 2730 (void) printf("\t%5s %s\n", "errno", "count"); 2731 for (int e = 0; e < 256; e++) { 2732 if (zcb.zcb_errors[e] != 0) { 2733 (void) printf("\t%5d %llu\n", 2734 e, (u_longlong_t)zcb.zcb_errors[e]); 2735 } 2736 } 2737 } 2738 2739 /* 2740 * Report any leaked segments. 2741 */ 2742 zdb_leak_fini(spa); 2743 2744 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 2745 2746 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 2747 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 2748 2749 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); 2750 total_found = tzb->zb_asize - zcb.zcb_dedup_asize; 2751 2752 if (total_found == total_alloc) { 2753 if (!dump_opt['L']) 2754 (void) printf("\n\tNo leaks (block sum matches space" 2755 " maps exactly)\n"); 2756 } else { 2757 (void) printf("block traversal size %llu != alloc %llu " 2758 "(%s %lld)\n", 2759 (u_longlong_t)total_found, 2760 (u_longlong_t)total_alloc, 2761 (dump_opt['L']) ? "unreachable" : "leaked", 2762 (longlong_t)(total_alloc - total_found)); 2763 leaks = B_TRUE; 2764 } 2765 2766 if (tzb->zb_count == 0) 2767 return (2); 2768 2769 (void) printf("\n"); 2770 (void) printf("\tbp count: %10llu\n", 2771 (u_longlong_t)tzb->zb_count); 2772 (void) printf("\tganged count: %10llu\n", 2773 (longlong_t)tzb->zb_gangs); 2774 (void) printf("\tbp logical: %10llu avg: %6llu\n", 2775 (u_longlong_t)tzb->zb_lsize, 2776 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 2777 (void) printf("\tbp physical: %10llu avg:" 2778 " %6llu compression: %6.2f\n", 2779 (u_longlong_t)tzb->zb_psize, 2780 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 2781 (double)tzb->zb_lsize / tzb->zb_psize); 2782 (void) printf("\tbp allocated: %10llu avg:" 2783 " %6llu compression: %6.2f\n", 2784 (u_longlong_t)tzb->zb_asize, 2785 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 2786 (double)tzb->zb_lsize / tzb->zb_asize); 2787 (void) printf("\tbp deduped: %10llu ref>1:" 2788 " %6llu deduplication: %6.2f\n", 2789 (u_longlong_t)zcb.zcb_dedup_asize, 2790 (u_longlong_t)zcb.zcb_dedup_blocks, 2791 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 2792 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", 2793 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 2794 2795 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) { 2796 if (zcb.zcb_embedded_blocks[i] == 0) 2797 continue; 2798 (void) printf("\n"); 2799 (void) printf("\tadditional, non-pointer bps of type %u: " 2800 "%10llu\n", 2801 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]); 2802 2803 if (dump_opt['b'] >= 3) { 2804 (void) printf("\t number of (compressed) bytes: " 2805 "number of bps\n"); 2806 dump_histogram(zcb.zcb_embedded_histogram[i], 2807 sizeof (zcb.zcb_embedded_histogram[i]) / 2808 sizeof (zcb.zcb_embedded_histogram[i][0]), 0); 2809 } 2810 } 2811 2812 if (tzb->zb_ditto_samevdev != 0) { 2813 (void) printf("\tDittoed blocks on same vdev: %llu\n", 2814 (longlong_t)tzb->zb_ditto_samevdev); 2815 } 2816 2817 if (dump_opt['b'] >= 2) { 2818 int l, t, level; 2819 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 2820 "\t avg\t comp\t%%Total\tType\n"); 2821 2822 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 2823 char csize[32], lsize[32], psize[32], asize[32]; 2824 char avg[32], gang[32]; 2825 char *typename; 2826 2827 if (t < DMU_OT_NUMTYPES) 2828 typename = dmu_ot[t].ot_name; 2829 else 2830 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 2831 2832 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 2833 (void) printf("%6s\t%5s\t%5s\t%5s" 2834 "\t%5s\t%5s\t%6s\t%s\n", 2835 "-", 2836 "-", 2837 "-", 2838 "-", 2839 "-", 2840 "-", 2841 "-", 2842 typename); 2843 continue; 2844 } 2845 2846 for (l = ZB_TOTAL - 1; l >= -1; l--) { 2847 level = (l == -1 ? ZB_TOTAL : l); 2848 zb = &zcb.zcb_type[level][t]; 2849 2850 if (zb->zb_asize == 0) 2851 continue; 2852 2853 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 2854 continue; 2855 2856 if (level == 0 && zb->zb_asize == 2857 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 2858 continue; 2859 2860 zdb_nicenum(zb->zb_count, csize); 2861 zdb_nicenum(zb->zb_lsize, lsize); 2862 zdb_nicenum(zb->zb_psize, psize); 2863 zdb_nicenum(zb->zb_asize, asize); 2864 zdb_nicenum(zb->zb_asize / zb->zb_count, avg); 2865 zdb_nicenum(zb->zb_gangs, gang); 2866 2867 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 2868 "\t%5.2f\t%6.2f\t", 2869 csize, lsize, psize, asize, avg, 2870 (double)zb->zb_lsize / zb->zb_psize, 2871 100.0 * zb->zb_asize / tzb->zb_asize); 2872 2873 if (level == ZB_TOTAL) 2874 (void) printf("%s\n", typename); 2875 else 2876 (void) printf(" L%d %s\n", 2877 level, typename); 2878 2879 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { 2880 (void) printf("\t number of ganged " 2881 "blocks: %s\n", gang); 2882 } 2883 2884 if (dump_opt['b'] >= 4) { 2885 (void) printf("psize " 2886 "(in 512-byte sectors): " 2887 "number of blocks\n"); 2888 dump_histogram(zb->zb_psize_histogram, 2889 PSIZE_HISTO_SIZE, 0); 2890 } 2891 } 2892 } 2893 } 2894 2895 (void) printf("\n"); 2896 2897 if (leaks) 2898 return (2); 2899 2900 if (zcb.zcb_haderrors) 2901 return (3); 2902 2903 return (0); 2904 } 2905 2906 typedef struct zdb_ddt_entry { 2907 ddt_key_t zdde_key; 2908 uint64_t zdde_ref_blocks; 2909 uint64_t zdde_ref_lsize; 2910 uint64_t zdde_ref_psize; 2911 uint64_t zdde_ref_dsize; 2912 avl_node_t zdde_node; 2913 } zdb_ddt_entry_t; 2914 2915 /* ARGSUSED */ 2916 static int 2917 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2918 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 2919 { 2920 avl_tree_t *t = arg; 2921 avl_index_t where; 2922 zdb_ddt_entry_t *zdde, zdde_search; 2923 2924 if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp)) 2925 return (0); 2926 2927 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 2928 (void) printf("traversing objset %llu, %llu objects, " 2929 "%lu blocks so far\n", 2930 (u_longlong_t)zb->zb_objset, 2931 (u_longlong_t)BP_GET_FILL(bp), 2932 avl_numnodes(t)); 2933 } 2934 2935 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 2936 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 2937 return (0); 2938 2939 ddt_key_fill(&zdde_search.zdde_key, bp); 2940 2941 zdde = avl_find(t, &zdde_search, &where); 2942 2943 if (zdde == NULL) { 2944 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 2945 zdde->zdde_key = zdde_search.zdde_key; 2946 avl_insert(t, zdde, where); 2947 } 2948 2949 zdde->zdde_ref_blocks += 1; 2950 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 2951 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 2952 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 2953 2954 return (0); 2955 } 2956 2957 static void 2958 dump_simulated_ddt(spa_t *spa) 2959 { 2960 avl_tree_t t; 2961 void *cookie = NULL; 2962 zdb_ddt_entry_t *zdde; 2963 ddt_histogram_t ddh_total = { 0 }; 2964 ddt_stat_t dds_total = { 0 }; 2965 2966 avl_create(&t, ddt_entry_compare, 2967 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 2968 2969 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2970 2971 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, 2972 zdb_ddt_add_cb, &t); 2973 2974 spa_config_exit(spa, SCL_CONFIG, FTAG); 2975 2976 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 2977 ddt_stat_t dds; 2978 uint64_t refcnt = zdde->zdde_ref_blocks; 2979 ASSERT(refcnt != 0); 2980 2981 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 2982 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 2983 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 2984 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 2985 2986 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 2987 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 2988 dds.dds_ref_psize = zdde->zdde_ref_psize; 2989 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 2990 2991 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1], 2992 &dds, 0); 2993 2994 umem_free(zdde, sizeof (*zdde)); 2995 } 2996 2997 avl_destroy(&t); 2998 2999 ddt_histogram_stat(&dds_total, &ddh_total); 3000 3001 (void) printf("Simulated DDT histogram:\n"); 3002 3003 zpool_dump_ddt(&dds_total, &ddh_total); 3004 3005 dump_dedup_ratio(&dds_total); 3006 } 3007 3008 static void 3009 dump_zpool(spa_t *spa) 3010 { 3011 dsl_pool_t *dp = spa_get_dsl(spa); 3012 int rc = 0; 3013 3014 if (dump_opt['S']) { 3015 dump_simulated_ddt(spa); 3016 return; 3017 } 3018 3019 if (!dump_opt['e'] && dump_opt['C'] > 1) { 3020 (void) printf("\nCached configuration:\n"); 3021 dump_nvlist(spa->spa_config, 8); 3022 } 3023 3024 if (dump_opt['C']) 3025 dump_config(spa); 3026 3027 if (dump_opt['u']) 3028 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 3029 3030 if (dump_opt['D']) 3031 dump_all_ddts(spa); 3032 3033 if (dump_opt['d'] > 2 || dump_opt['m']) 3034 dump_metaslabs(spa); 3035 if (dump_opt['M']) 3036 dump_metaslab_groups(spa); 3037 3038 if (dump_opt['d'] || dump_opt['i']) { 3039 dump_dir(dp->dp_meta_objset); 3040 if (dump_opt['d'] >= 3) { 3041 dump_full_bpobj(&spa->spa_deferred_bpobj, 3042 "Deferred frees", 0); 3043 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 3044 dump_full_bpobj( 3045 &spa->spa_dsl_pool->dp_free_bpobj, 3046 "Pool snapshot frees", 0); 3047 } 3048 3049 if (spa_feature_is_active(spa, 3050 SPA_FEATURE_ASYNC_DESTROY)) { 3051 dump_bptree(spa->spa_meta_objset, 3052 spa->spa_dsl_pool->dp_bptree_obj, 3053 "Pool dataset frees"); 3054 } 3055 dump_dtl(spa->spa_root_vdev, 0); 3056 } 3057 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 3058 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 3059 3060 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) { 3061 uint64_t refcount; 3062 3063 if (!(spa_feature_table[f].fi_flags & 3064 ZFEATURE_FLAG_PER_DATASET) || 3065 !spa_feature_is_enabled(spa, f)) { 3066 ASSERT0(dataset_feature_count[f]); 3067 continue; 3068 } 3069 (void) feature_get_refcount(spa, 3070 &spa_feature_table[f], &refcount); 3071 if (dataset_feature_count[f] != refcount) { 3072 (void) printf("%s feature refcount mismatch: " 3073 "%lld datasets != %lld refcount\n", 3074 spa_feature_table[f].fi_uname, 3075 (longlong_t)dataset_feature_count[f], 3076 (longlong_t)refcount); 3077 rc = 2; 3078 } else { 3079 (void) printf("Verified %s feature refcount " 3080 "of %llu is correct\n", 3081 spa_feature_table[f].fi_uname, 3082 (longlong_t)refcount); 3083 } 3084 } 3085 } 3086 if (rc == 0 && (dump_opt['b'] || dump_opt['c'])) 3087 rc = dump_block_stats(spa); 3088 3089 if (rc == 0) 3090 rc = verify_spacemap_refcounts(spa); 3091 3092 if (dump_opt['s']) 3093 show_pool_stats(spa); 3094 3095 if (dump_opt['h']) 3096 dump_history(spa); 3097 3098 if (rc != 0) { 3099 dump_debug_buffer(); 3100 exit(rc); 3101 } 3102 } 3103 3104 #define ZDB_FLAG_CHECKSUM 0x0001 3105 #define ZDB_FLAG_DECOMPRESS 0x0002 3106 #define ZDB_FLAG_BSWAP 0x0004 3107 #define ZDB_FLAG_GBH 0x0008 3108 #define ZDB_FLAG_INDIRECT 0x0010 3109 #define ZDB_FLAG_PHYS 0x0020 3110 #define ZDB_FLAG_RAW 0x0040 3111 #define ZDB_FLAG_PRINT_BLKPTR 0x0080 3112 3113 int flagbits[256]; 3114 3115 static void 3116 zdb_print_blkptr(blkptr_t *bp, int flags) 3117 { 3118 char blkbuf[BP_SPRINTF_LEN]; 3119 3120 if (flags & ZDB_FLAG_BSWAP) 3121 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 3122 3123 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 3124 (void) printf("%s\n", blkbuf); 3125 } 3126 3127 static void 3128 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 3129 { 3130 int i; 3131 3132 for (i = 0; i < nbps; i++) 3133 zdb_print_blkptr(&bp[i], flags); 3134 } 3135 3136 static void 3137 zdb_dump_gbh(void *buf, int flags) 3138 { 3139 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 3140 } 3141 3142 static void 3143 zdb_dump_block_raw(void *buf, uint64_t size, int flags) 3144 { 3145 if (flags & ZDB_FLAG_BSWAP) 3146 byteswap_uint64_array(buf, size); 3147 (void) write(1, buf, size); 3148 } 3149 3150 static void 3151 zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 3152 { 3153 uint64_t *d = (uint64_t *)buf; 3154 int nwords = size / sizeof (uint64_t); 3155 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 3156 int i, j; 3157 char *hdr, *c; 3158 3159 3160 if (do_bswap) 3161 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 3162 else 3163 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 3164 3165 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 3166 3167 for (i = 0; i < nwords; i += 2) { 3168 (void) printf("%06llx: %016llx %016llx ", 3169 (u_longlong_t)(i * sizeof (uint64_t)), 3170 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 3171 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 3172 3173 c = (char *)&d[i]; 3174 for (j = 0; j < 2 * sizeof (uint64_t); j++) 3175 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 3176 (void) printf("\n"); 3177 } 3178 } 3179 3180 /* 3181 * There are two acceptable formats: 3182 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 3183 * child[.child]* - For example: 0.1.1 3184 * 3185 * The second form can be used to specify arbitrary vdevs anywhere 3186 * in the heirarchy. For example, in a pool with a mirror of 3187 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 3188 */ 3189 static vdev_t * 3190 zdb_vdev_lookup(vdev_t *vdev, char *path) 3191 { 3192 char *s, *p, *q; 3193 int i; 3194 3195 if (vdev == NULL) 3196 return (NULL); 3197 3198 /* First, assume the x.x.x.x format */ 3199 i = (int)strtoul(path, &s, 10); 3200 if (s == path || (s && *s != '.' && *s != '\0')) 3201 goto name; 3202 if (i < 0 || i >= vdev->vdev_children) 3203 return (NULL); 3204 3205 vdev = vdev->vdev_child[i]; 3206 if (*s == '\0') 3207 return (vdev); 3208 return (zdb_vdev_lookup(vdev, s+1)); 3209 3210 name: 3211 for (i = 0; i < vdev->vdev_children; i++) { 3212 vdev_t *vc = vdev->vdev_child[i]; 3213 3214 if (vc->vdev_path == NULL) { 3215 vc = zdb_vdev_lookup(vc, path); 3216 if (vc == NULL) 3217 continue; 3218 else 3219 return (vc); 3220 } 3221 3222 p = strrchr(vc->vdev_path, '/'); 3223 p = p ? p + 1 : vc->vdev_path; 3224 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 3225 3226 if (strcmp(vc->vdev_path, path) == 0) 3227 return (vc); 3228 if (strcmp(p, path) == 0) 3229 return (vc); 3230 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 3231 return (vc); 3232 } 3233 3234 return (NULL); 3235 } 3236 3237 /* 3238 * Read a block from a pool and print it out. The syntax of the 3239 * block descriptor is: 3240 * 3241 * pool:vdev_specifier:offset:size[:flags] 3242 * 3243 * pool - The name of the pool you wish to read from 3244 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 3245 * offset - offset, in hex, in bytes 3246 * size - Amount of data to read, in hex, in bytes 3247 * flags - A string of characters specifying options 3248 * b: Decode a blkptr at given offset within block 3249 * *c: Calculate and display checksums 3250 * d: Decompress data before dumping 3251 * e: Byteswap data before dumping 3252 * g: Display data as a gang block header 3253 * i: Display as an indirect block 3254 * p: Do I/O to physical offset 3255 * r: Dump raw data to stdout 3256 * 3257 * * = not yet implemented 3258 */ 3259 static void 3260 zdb_read_block(char *thing, spa_t *spa) 3261 { 3262 blkptr_t blk, *bp = &blk; 3263 dva_t *dva = bp->blk_dva; 3264 int flags = 0; 3265 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 3266 zio_t *zio; 3267 vdev_t *vd; 3268 void *pbuf, *lbuf, *buf; 3269 char *s, *p, *dup, *vdev, *flagstr; 3270 int i, error; 3271 3272 dup = strdup(thing); 3273 s = strtok(dup, ":"); 3274 vdev = s ? s : ""; 3275 s = strtok(NULL, ":"); 3276 offset = strtoull(s ? s : "", NULL, 16); 3277 s = strtok(NULL, ":"); 3278 size = strtoull(s ? s : "", NULL, 16); 3279 s = strtok(NULL, ":"); 3280 flagstr = s ? s : ""; 3281 3282 s = NULL; 3283 if (size == 0) 3284 s = "size must not be zero"; 3285 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 3286 s = "size must be a multiple of sector size"; 3287 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 3288 s = "offset must be a multiple of sector size"; 3289 if (s) { 3290 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 3291 free(dup); 3292 return; 3293 } 3294 3295 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 3296 for (i = 0; flagstr[i]; i++) { 3297 int bit = flagbits[(uchar_t)flagstr[i]]; 3298 3299 if (bit == 0) { 3300 (void) printf("***Invalid flag: %c\n", 3301 flagstr[i]); 3302 continue; 3303 } 3304 flags |= bit; 3305 3306 /* If it's not something with an argument, keep going */ 3307 if ((bit & (ZDB_FLAG_CHECKSUM | 3308 ZDB_FLAG_PRINT_BLKPTR)) == 0) 3309 continue; 3310 3311 p = &flagstr[i + 1]; 3312 if (bit == ZDB_FLAG_PRINT_BLKPTR) 3313 blkptr_offset = strtoull(p, &p, 16); 3314 if (*p != ':' && *p != '\0') { 3315 (void) printf("***Invalid flag arg: '%s'\n", s); 3316 free(dup); 3317 return; 3318 } 3319 } 3320 } 3321 3322 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 3323 if (vd == NULL) { 3324 (void) printf("***Invalid vdev: %s\n", vdev); 3325 free(dup); 3326 return; 3327 } else { 3328 if (vd->vdev_path) 3329 (void) fprintf(stderr, "Found vdev: %s\n", 3330 vd->vdev_path); 3331 else 3332 (void) fprintf(stderr, "Found vdev type: %s\n", 3333 vd->vdev_ops->vdev_op_type); 3334 } 3335 3336 psize = size; 3337 lsize = size; 3338 3339 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3340 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3341 3342 BP_ZERO(bp); 3343 3344 DVA_SET_VDEV(&dva[0], vd->vdev_id); 3345 DVA_SET_OFFSET(&dva[0], offset); 3346 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 3347 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 3348 3349 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 3350 3351 BP_SET_LSIZE(bp, lsize); 3352 BP_SET_PSIZE(bp, psize); 3353 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 3354 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 3355 BP_SET_TYPE(bp, DMU_OT_NONE); 3356 BP_SET_LEVEL(bp, 0); 3357 BP_SET_DEDUP(bp, 0); 3358 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 3359 3360 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 3361 zio = zio_root(spa, NULL, NULL, 0); 3362 3363 if (vd == vd->vdev_top) { 3364 /* 3365 * Treat this as a normal block read. 3366 */ 3367 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL, 3368 ZIO_PRIORITY_SYNC_READ, 3369 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 3370 } else { 3371 /* 3372 * Treat this as a vdev child I/O. 3373 */ 3374 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize, 3375 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 3376 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 3377 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 3378 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL)); 3379 } 3380 3381 error = zio_wait(zio); 3382 spa_config_exit(spa, SCL_STATE, FTAG); 3383 3384 if (error) { 3385 (void) printf("Read of %s failed, error: %d\n", thing, error); 3386 goto out; 3387 } 3388 3389 if (flags & ZDB_FLAG_DECOMPRESS) { 3390 /* 3391 * We don't know how the data was compressed, so just try 3392 * every decompress function at every inflated blocksize. 3393 */ 3394 enum zio_compress c; 3395 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3396 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3397 3398 bcopy(pbuf, pbuf2, psize); 3399 3400 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize, 3401 SPA_MAXBLOCKSIZE - psize) == 0); 3402 3403 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 3404 SPA_MAXBLOCKSIZE - psize) == 0); 3405 3406 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 3407 lsize -= SPA_MINBLOCKSIZE) { 3408 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 3409 if (zio_decompress_data(c, pbuf, lbuf, 3410 psize, lsize) == 0 && 3411 zio_decompress_data(c, pbuf2, lbuf2, 3412 psize, lsize) == 0 && 3413 bcmp(lbuf, lbuf2, lsize) == 0) 3414 break; 3415 } 3416 if (c != ZIO_COMPRESS_FUNCTIONS) 3417 break; 3418 lsize -= SPA_MINBLOCKSIZE; 3419 } 3420 3421 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 3422 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 3423 3424 if (lsize <= psize) { 3425 (void) printf("Decompress of %s failed\n", thing); 3426 goto out; 3427 } 3428 buf = lbuf; 3429 size = lsize; 3430 } else { 3431 buf = pbuf; 3432 size = psize; 3433 } 3434 3435 if (flags & ZDB_FLAG_PRINT_BLKPTR) 3436 zdb_print_blkptr((blkptr_t *)(void *) 3437 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 3438 else if (flags & ZDB_FLAG_RAW) 3439 zdb_dump_block_raw(buf, size, flags); 3440 else if (flags & ZDB_FLAG_INDIRECT) 3441 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 3442 flags); 3443 else if (flags & ZDB_FLAG_GBH) 3444 zdb_dump_gbh(buf, flags); 3445 else 3446 zdb_dump_block(thing, buf, size, flags); 3447 3448 out: 3449 umem_free(pbuf, SPA_MAXBLOCKSIZE); 3450 umem_free(lbuf, SPA_MAXBLOCKSIZE); 3451 free(dup); 3452 } 3453 3454 static boolean_t 3455 pool_match(nvlist_t *cfg, char *tgt) 3456 { 3457 uint64_t v, guid = strtoull(tgt, NULL, 0); 3458 char *s; 3459 3460 if (guid != 0) { 3461 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) 3462 return (v == guid); 3463 } else { 3464 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) 3465 return (strcmp(s, tgt) == 0); 3466 } 3467 return (B_FALSE); 3468 } 3469 3470 static char * 3471 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) 3472 { 3473 nvlist_t *pools; 3474 nvlist_t *match = NULL; 3475 char *name = NULL; 3476 char *sepp = NULL; 3477 char sep = '\0'; 3478 int count = 0; 3479 importargs_t args = { 0 }; 3480 3481 args.paths = dirc; 3482 args.path = dirv; 3483 args.can_be_active = B_TRUE; 3484 3485 if ((sepp = strpbrk(*target, "/@")) != NULL) { 3486 sep = *sepp; 3487 *sepp = '\0'; 3488 } 3489 3490 pools = zpool_search_import(g_zfs, &args); 3491 3492 if (pools != NULL) { 3493 nvpair_t *elem = NULL; 3494 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 3495 verify(nvpair_value_nvlist(elem, configp) == 0); 3496 if (pool_match(*configp, *target)) { 3497 count++; 3498 if (match != NULL) { 3499 /* print previously found config */ 3500 if (name != NULL) { 3501 (void) printf("%s\n", name); 3502 dump_nvlist(match, 8); 3503 name = NULL; 3504 } 3505 (void) printf("%s\n", 3506 nvpair_name(elem)); 3507 dump_nvlist(*configp, 8); 3508 } else { 3509 match = *configp; 3510 name = nvpair_name(elem); 3511 } 3512 } 3513 } 3514 } 3515 if (count > 1) 3516 (void) fatal("\tMatched %d pools - use pool GUID " 3517 "instead of pool name or \n" 3518 "\tpool name part of a dataset name to select pool", count); 3519 3520 if (sepp) 3521 *sepp = sep; 3522 /* 3523 * If pool GUID was specified for pool id, replace it with pool name 3524 */ 3525 if (name && (strstr(*target, name) != *target)) { 3526 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); 3527 3528 *target = umem_alloc(sz, UMEM_NOFAIL); 3529 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); 3530 } 3531 3532 *configp = name ? match : NULL; 3533 3534 return (name); 3535 } 3536 3537 int 3538 main(int argc, char **argv) 3539 { 3540 int i, c; 3541 struct rlimit rl = { 1024, 1024 }; 3542 spa_t *spa = NULL; 3543 objset_t *os = NULL; 3544 int dump_all = 1; 3545 int verbose = 0; 3546 int error = 0; 3547 char **searchdirs = NULL; 3548 int nsearch = 0; 3549 char *target; 3550 nvlist_t *policy = NULL; 3551 uint64_t max_txg = UINT64_MAX; 3552 int rewind = ZPOOL_NEVER_REWIND; 3553 char *spa_config_path_env; 3554 boolean_t target_is_spa = B_TRUE; 3555 3556 (void) setrlimit(RLIMIT_NOFILE, &rl); 3557 (void) enable_extended_FILE_stdio(-1, -1); 3558 3559 dprintf_setup(&argc, argv); 3560 3561 /* 3562 * If there is an environment variable SPA_CONFIG_PATH it overrides 3563 * default spa_config_path setting. If -U flag is specified it will 3564 * override this environment variable settings once again. 3565 */ 3566 spa_config_path_env = getenv("SPA_CONFIG_PATH"); 3567 if (spa_config_path_env != NULL) 3568 spa_config_path = spa_config_path_env; 3569 3570 while ((c = getopt(argc, argv, 3571 "bcdhilmMI:suCDRSAFLXx:evp:t:U:PGo:")) != -1) { 3572 switch (c) { 3573 case 'b': 3574 case 'c': 3575 case 'd': 3576 case 'h': 3577 case 'i': 3578 case 'l': 3579 case 'm': 3580 case 's': 3581 case 'u': 3582 case 'C': 3583 case 'D': 3584 case 'M': 3585 case 'R': 3586 case 'S': 3587 case 'G': 3588 dump_opt[c]++; 3589 dump_all = 0; 3590 break; 3591 case 'A': 3592 case 'F': 3593 case 'L': 3594 case 'X': 3595 case 'e': 3596 case 'P': 3597 dump_opt[c]++; 3598 break; 3599 case 'I': 3600 max_inflight = strtoull(optarg, NULL, 0); 3601 if (max_inflight == 0) { 3602 (void) fprintf(stderr, "maximum number " 3603 "of inflight I/Os must be greater " 3604 "than 0\n"); 3605 usage(); 3606 } 3607 break; 3608 case 'p': 3609 if (searchdirs == NULL) { 3610 searchdirs = umem_alloc(sizeof (char *), 3611 UMEM_NOFAIL); 3612 } else { 3613 char **tmp = umem_alloc((nsearch + 1) * 3614 sizeof (char *), UMEM_NOFAIL); 3615 bcopy(searchdirs, tmp, nsearch * 3616 sizeof (char *)); 3617 umem_free(searchdirs, 3618 nsearch * sizeof (char *)); 3619 searchdirs = tmp; 3620 } 3621 searchdirs[nsearch++] = optarg; 3622 break; 3623 case 't': 3624 max_txg = strtoull(optarg, NULL, 0); 3625 if (max_txg < TXG_INITIAL) { 3626 (void) fprintf(stderr, "incorrect txg " 3627 "specified: %s\n", optarg); 3628 usage(); 3629 } 3630 break; 3631 case 'U': 3632 spa_config_path = optarg; 3633 break; 3634 case 'v': 3635 verbose++; 3636 break; 3637 case 'x': 3638 vn_dumpdir = optarg; 3639 break; 3640 case 'o': 3641 error = set_global_var(optarg); 3642 if (error != 0) 3643 usage(); 3644 break; 3645 default: 3646 usage(); 3647 break; 3648 } 3649 } 3650 3651 if (!dump_opt['e'] && searchdirs != NULL) { 3652 (void) fprintf(stderr, "-p option requires use of -e\n"); 3653 usage(); 3654 } 3655 3656 /* 3657 * ZDB does not typically re-read blocks; therefore limit the ARC 3658 * to 256 MB, which can be used entirely for metadata. 3659 */ 3660 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024; 3661 3662 /* 3663 * "zdb -c" uses checksum-verifying scrub i/os which are async reads. 3664 * "zdb -b" uses traversal prefetch which uses async reads. 3665 * For good performance, let several of them be active at once. 3666 */ 3667 zfs_vdev_async_read_max_active = 10; 3668 3669 kernel_init(FREAD); 3670 g_zfs = libzfs_init(); 3671 ASSERT(g_zfs != NULL); 3672 3673 if (dump_all) 3674 verbose = MAX(verbose, 1); 3675 3676 for (c = 0; c < 256; c++) { 3677 if (dump_all && !strchr("elAFLRSXP", c)) 3678 dump_opt[c] = 1; 3679 if (dump_opt[c]) 3680 dump_opt[c] += verbose; 3681 } 3682 3683 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 3684 zfs_recover = (dump_opt['A'] > 1); 3685 3686 argc -= optind; 3687 argv += optind; 3688 3689 if (argc < 2 && dump_opt['R']) 3690 usage(); 3691 if (argc < 1) { 3692 if (!dump_opt['e'] && dump_opt['C']) { 3693 dump_cachefile(spa_config_path); 3694 return (0); 3695 } 3696 usage(); 3697 } 3698 3699 if (dump_opt['l']) { 3700 dump_label(argv[0]); 3701 return (0); 3702 } 3703 3704 if (dump_opt['X'] || dump_opt['F']) 3705 rewind = ZPOOL_DO_REWIND | 3706 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 3707 3708 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 3709 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 || 3710 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0) 3711 fatal("internal error: %s", strerror(ENOMEM)); 3712 3713 error = 0; 3714 target = argv[0]; 3715 3716 if (dump_opt['e']) { 3717 nvlist_t *cfg = NULL; 3718 char *name = find_zpool(&target, &cfg, nsearch, searchdirs); 3719 3720 error = ENOENT; 3721 if (name) { 3722 if (dump_opt['C'] > 1) { 3723 (void) printf("\nConfiguration for import:\n"); 3724 dump_nvlist(cfg, 8); 3725 } 3726 if (nvlist_add_nvlist(cfg, 3727 ZPOOL_REWIND_POLICY, policy) != 0) { 3728 fatal("can't open '%s': %s", 3729 target, strerror(ENOMEM)); 3730 } 3731 if ((error = spa_import(name, cfg, NULL, 3732 ZFS_IMPORT_MISSING_LOG)) != 0) { 3733 error = spa_import(name, cfg, NULL, 3734 ZFS_IMPORT_VERBATIM); 3735 } 3736 } 3737 } 3738 3739 if (strpbrk(target, "/@") != NULL) { 3740 size_t targetlen; 3741 3742 target_is_spa = B_FALSE; 3743 /* 3744 * Remove any trailing slash. Later code would get confused 3745 * by it, but we want to allow it so that "pool/" can 3746 * indicate that we want to dump the topmost filesystem, 3747 * rather than the whole pool. 3748 */ 3749 targetlen = strlen(target); 3750 if (targetlen != 0 && target[targetlen - 1] == '/') 3751 target[targetlen - 1] = '\0'; 3752 } 3753 3754 if (error == 0) { 3755 if (target_is_spa || dump_opt['R']) { 3756 error = spa_open_rewind(target, &spa, FTAG, policy, 3757 NULL); 3758 if (error) { 3759 /* 3760 * If we're missing the log device then 3761 * try opening the pool after clearing the 3762 * log state. 3763 */ 3764 mutex_enter(&spa_namespace_lock); 3765 if ((spa = spa_lookup(target)) != NULL && 3766 spa->spa_log_state == SPA_LOG_MISSING) { 3767 spa->spa_log_state = SPA_LOG_CLEAR; 3768 error = 0; 3769 } 3770 mutex_exit(&spa_namespace_lock); 3771 3772 if (!error) { 3773 error = spa_open_rewind(target, &spa, 3774 FTAG, policy, NULL); 3775 } 3776 } 3777 } else { 3778 error = dmu_objset_own(target, DMU_OST_ANY, 3779 B_TRUE, FTAG, &os); 3780 } 3781 } 3782 nvlist_free(policy); 3783 3784 if (error) 3785 fatal("can't open '%s': %s", target, strerror(error)); 3786 3787 argv++; 3788 argc--; 3789 if (!dump_opt['R']) { 3790 if (argc > 0) { 3791 zopt_objects = argc; 3792 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 3793 for (i = 0; i < zopt_objects; i++) { 3794 errno = 0; 3795 zopt_object[i] = strtoull(argv[i], NULL, 0); 3796 if (zopt_object[i] == 0 && errno != 0) 3797 fatal("bad number %s: %s", 3798 argv[i], strerror(errno)); 3799 } 3800 } 3801 if (os != NULL) { 3802 dump_dir(os); 3803 } else if (zopt_objects > 0 && !dump_opt['m']) { 3804 dump_dir(spa->spa_meta_objset); 3805 } else { 3806 dump_zpool(spa); 3807 } 3808 } else { 3809 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 3810 flagbits['c'] = ZDB_FLAG_CHECKSUM; 3811 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 3812 flagbits['e'] = ZDB_FLAG_BSWAP; 3813 flagbits['g'] = ZDB_FLAG_GBH; 3814 flagbits['i'] = ZDB_FLAG_INDIRECT; 3815 flagbits['p'] = ZDB_FLAG_PHYS; 3816 flagbits['r'] = ZDB_FLAG_RAW; 3817 3818 for (i = 0; i < argc; i++) 3819 zdb_read_block(argv[i], spa); 3820 } 3821 3822 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG); 3823 3824 fuid_table_destroy(); 3825 sa_loaded = B_FALSE; 3826 3827 dump_debug_buffer(); 3828 3829 libzfs_fini(g_zfs); 3830 kernel_fini(); 3831 3832 return (0); 3833 } 3834