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 * Copyright 2017 Nexenta Systems, Inc. 27 */ 28 29 #include <stdio.h> 30 #include <unistd.h> 31 #include <stdio_ext.h> 32 #include <stdlib.h> 33 #include <ctype.h> 34 #include <sys/zfs_context.h> 35 #include <sys/spa.h> 36 #include <sys/spa_impl.h> 37 #include <sys/dmu.h> 38 #include <sys/zap.h> 39 #include <sys/fs/zfs.h> 40 #include <sys/zfs_znode.h> 41 #include <sys/zfs_sa.h> 42 #include <sys/sa.h> 43 #include <sys/sa_impl.h> 44 #include <sys/vdev.h> 45 #include <sys/vdev_impl.h> 46 #include <sys/metaslab_impl.h> 47 #include <sys/dmu_objset.h> 48 #include <sys/dsl_dir.h> 49 #include <sys/dsl_dataset.h> 50 #include <sys/dsl_pool.h> 51 #include <sys/dbuf.h> 52 #include <sys/zil.h> 53 #include <sys/zil_impl.h> 54 #include <sys/stat.h> 55 #include <sys/resource.h> 56 #include <sys/dmu_traverse.h> 57 #include <sys/zio_checksum.h> 58 #include <sys/zio_compress.h> 59 #include <sys/zfs_fuid.h> 60 #include <sys/arc.h> 61 #include <sys/ddt.h> 62 #include <sys/zfeature.h> 63 #include <zfs_comutil.h> 64 #undef verify 65 #include <libzfs.h> 66 67 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \ 68 zio_compress_table[(idx)].ci_name : "UNKNOWN") 69 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \ 70 zio_checksum_table[(idx)].ci_name : "UNKNOWN") 71 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \ 72 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \ 73 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN") 74 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \ 75 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \ 76 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES)) 77 78 #ifndef lint 79 extern int reference_tracking_enable; 80 extern boolean_t zfs_recover; 81 extern uint64_t zfs_arc_max, zfs_arc_meta_limit; 82 extern int zfs_vdev_async_read_max_active; 83 #else 84 int reference_tracking_enable; 85 boolean_t zfs_recover; 86 uint64_t zfs_arc_max, zfs_arc_meta_limit; 87 int zfs_vdev_async_read_max_active; 88 #endif 89 90 const char cmdname[] = "zdb"; 91 uint8_t dump_opt[256]; 92 93 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size); 94 95 extern void dump_intent_log(zilog_t *); 96 uint64_t *zopt_object = NULL; 97 int zopt_objects = 0; 98 libzfs_handle_t *g_zfs; 99 uint64_t max_inflight = 1000; 100 101 static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *); 102 103 /* 104 * These libumem hooks provide a reasonable set of defaults for the allocator's 105 * debugging facilities. 106 */ 107 const char * 108 _umem_debug_init() 109 { 110 return ("default,verbose"); /* $UMEM_DEBUG setting */ 111 } 112 113 const char * 114 _umem_logging_init(void) 115 { 116 return ("fail,contents"); /* $UMEM_LOGGING setting */ 117 } 118 119 static void 120 usage(void) 121 { 122 (void) fprintf(stderr, 123 "Usage:\t%s [-AbcdDFGhiLMPsvX] [-e [-p <path> ...]] " 124 "[-I <inflight I/Os>]\n" 125 "\t\t[-o <var>=<value>]... [-t <txg>] [-U <cache>] [-x <dumpdir>]\n" 126 "\t\t[<poolname> [<object> ...]]\n" 127 "\t%s [-AdiPv] [-e [-p <path> ...]] [-U <cache>] <dataset> " 128 "[<object> ...]\n" 129 "\t%s -C [-A] [-U <cache>]\n" 130 "\t%s -l [-Aqu] <device>\n" 131 "\t%s -m [-AFLPX] [-e [-p <path> ...]] [-t <txg>] [-U <cache>]\n" 132 "\t\t<poolname> [<vdev> [<metaslab> ...]]\n" 133 "\t%s -O <dataset> <path>\n" 134 "\t%s -R [-A] [-e [-p <path> ...]] [-U <cache>]\n" 135 "\t\t<poolname> <vdev>:<offset>:<size>[:<flags>]\n" 136 "\t%s -S [-AP] [-e [-p <path> ...]] [-U <cache>] <poolname>\n\n", 137 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, 138 cmdname); 139 140 (void) fprintf(stderr, " Dataset name must include at least one " 141 "separator character '/' or '@'\n"); 142 (void) fprintf(stderr, " If dataset name is specified, only that " 143 "dataset is dumped\n"); 144 (void) fprintf(stderr, " If object numbers are specified, only " 145 "those objects are dumped\n\n"); 146 (void) fprintf(stderr, " Options to control amount of output:\n"); 147 (void) fprintf(stderr, " -b block statistics\n"); 148 (void) fprintf(stderr, " -c checksum all metadata (twice for " 149 "all data) blocks\n"); 150 (void) fprintf(stderr, " -C config (or cachefile if alone)\n"); 151 (void) fprintf(stderr, " -d dataset(s)\n"); 152 (void) fprintf(stderr, " -D dedup statistics\n"); 153 (void) fprintf(stderr, " -h pool history\n"); 154 (void) fprintf(stderr, " -i intent logs\n"); 155 (void) fprintf(stderr, " -l read label contents\n"); 156 (void) fprintf(stderr, " -L disable leak tracking (do not " 157 "load spacemaps)\n"); 158 (void) fprintf(stderr, " -m metaslabs\n"); 159 (void) fprintf(stderr, " -M metaslab groups\n"); 160 (void) fprintf(stderr, " -O perform object lookups by path\n"); 161 (void) fprintf(stderr, " -R read and display block from a " 162 "device\n"); 163 (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); 164 (void) fprintf(stderr, " -S simulate dedup to measure effect\n"); 165 (void) fprintf(stderr, " -v verbose (applies to all " 166 "others)\n\n"); 167 (void) fprintf(stderr, " Below options are intended for use " 168 "with other options:\n"); 169 (void) fprintf(stderr, " -A ignore assertions (-A), enable " 170 "panic recovery (-AA) or both (-AAA)\n"); 171 (void) fprintf(stderr, " -e pool is exported/destroyed/" 172 "has altroot/not in a cachefile\n"); 173 (void) fprintf(stderr, " -F attempt automatic rewind within " 174 "safe range of transaction groups\n"); 175 (void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before " 176 "exiting\n"); 177 (void) fprintf(stderr, " -I <number of inflight I/Os> -- " 178 "specify the maximum number of " 179 "checksumming I/Os [default is 200]\n"); 180 (void) fprintf(stderr, " -o <variable>=<value> set global " 181 "variable to an unsigned 32-bit integer value\n"); 182 (void) fprintf(stderr, " -p <path> -- use one or more with " 183 "-e to specify path to vdev dir\n"); 184 (void) fprintf(stderr, " -P print numbers in parseable form\n"); 185 (void) fprintf(stderr, " -q don't print label contents\n"); 186 (void) fprintf(stderr, " -t <txg> -- highest txg to use when " 187 "searching for uberblocks\n"); 188 (void) fprintf(stderr, " -u uberblock\n"); 189 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate " 190 "cachefile\n"); 191 (void) fprintf(stderr, " -x <dumpdir> -- " 192 "dump all read blocks into specified directory\n"); 193 (void) fprintf(stderr, " -X attempt extreme rewind (does not " 194 "work with dataset)\n\n"); 195 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 196 "to make only that option verbose\n"); 197 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 198 exit(1); 199 } 200 201 static void 202 dump_debug_buffer() 203 { 204 if (dump_opt['G']) { 205 (void) printf("\n"); 206 zfs_dbgmsg_print("zdb"); 207 } 208 } 209 210 /* 211 * Called for usage errors that are discovered after a call to spa_open(), 212 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. 213 */ 214 215 static void 216 fatal(const char *fmt, ...) 217 { 218 va_list ap; 219 220 va_start(ap, fmt); 221 (void) fprintf(stderr, "%s: ", cmdname); 222 (void) vfprintf(stderr, fmt, ap); 223 va_end(ap); 224 (void) fprintf(stderr, "\n"); 225 226 dump_debug_buffer(); 227 228 exit(1); 229 } 230 231 /* ARGSUSED */ 232 static void 233 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 234 { 235 nvlist_t *nv; 236 size_t nvsize = *(uint64_t *)data; 237 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 238 239 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH)); 240 241 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 242 243 umem_free(packed, nvsize); 244 245 dump_nvlist(nv, 8); 246 247 nvlist_free(nv); 248 } 249 250 /* ARGSUSED */ 251 static void 252 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size) 253 { 254 spa_history_phys_t *shp = data; 255 256 if (shp == NULL) 257 return; 258 259 (void) printf("\t\tpool_create_len = %llu\n", 260 (u_longlong_t)shp->sh_pool_create_len); 261 (void) printf("\t\tphys_max_off = %llu\n", 262 (u_longlong_t)shp->sh_phys_max_off); 263 (void) printf("\t\tbof = %llu\n", 264 (u_longlong_t)shp->sh_bof); 265 (void) printf("\t\teof = %llu\n", 266 (u_longlong_t)shp->sh_eof); 267 (void) printf("\t\trecords_lost = %llu\n", 268 (u_longlong_t)shp->sh_records_lost); 269 } 270 271 static void 272 zdb_nicenum(uint64_t num, char *buf) 273 { 274 if (dump_opt['P']) 275 (void) sprintf(buf, "%llu", (longlong_t)num); 276 else 277 nicenum(num, buf); 278 } 279 280 const char histo_stars[] = "****************************************"; 281 const int histo_width = sizeof (histo_stars) - 1; 282 283 static void 284 dump_histogram(const uint64_t *histo, int size, int offset) 285 { 286 int i; 287 int minidx = size - 1; 288 int maxidx = 0; 289 uint64_t max = 0; 290 291 for (i = 0; i < size; i++) { 292 if (histo[i] > max) 293 max = histo[i]; 294 if (histo[i] > 0 && i > maxidx) 295 maxidx = i; 296 if (histo[i] > 0 && i < minidx) 297 minidx = i; 298 } 299 300 if (max < histo_width) 301 max = histo_width; 302 303 for (i = minidx; i <= maxidx; i++) { 304 (void) printf("\t\t\t%3u: %6llu %s\n", 305 i + offset, (u_longlong_t)histo[i], 306 &histo_stars[(max - histo[i]) * histo_width / max]); 307 } 308 } 309 310 static void 311 dump_zap_stats(objset_t *os, uint64_t object) 312 { 313 int error; 314 zap_stats_t zs; 315 316 error = zap_get_stats(os, object, &zs); 317 if (error) 318 return; 319 320 if (zs.zs_ptrtbl_len == 0) { 321 ASSERT(zs.zs_num_blocks == 1); 322 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 323 (u_longlong_t)zs.zs_blocksize, 324 (u_longlong_t)zs.zs_num_entries); 325 return; 326 } 327 328 (void) printf("\tFat ZAP stats:\n"); 329 330 (void) printf("\t\tPointer table:\n"); 331 (void) printf("\t\t\t%llu elements\n", 332 (u_longlong_t)zs.zs_ptrtbl_len); 333 (void) printf("\t\t\tzt_blk: %llu\n", 334 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 335 (void) printf("\t\t\tzt_numblks: %llu\n", 336 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 337 (void) printf("\t\t\tzt_shift: %llu\n", 338 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 339 (void) printf("\t\t\tzt_blks_copied: %llu\n", 340 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 341 (void) printf("\t\t\tzt_nextblk: %llu\n", 342 (u_longlong_t)zs.zs_ptrtbl_nextblk); 343 344 (void) printf("\t\tZAP entries: %llu\n", 345 (u_longlong_t)zs.zs_num_entries); 346 (void) printf("\t\tLeaf blocks: %llu\n", 347 (u_longlong_t)zs.zs_num_leafs); 348 (void) printf("\t\tTotal blocks: %llu\n", 349 (u_longlong_t)zs.zs_num_blocks); 350 (void) printf("\t\tzap_block_type: 0x%llx\n", 351 (u_longlong_t)zs.zs_block_type); 352 (void) printf("\t\tzap_magic: 0x%llx\n", 353 (u_longlong_t)zs.zs_magic); 354 (void) printf("\t\tzap_salt: 0x%llx\n", 355 (u_longlong_t)zs.zs_salt); 356 357 (void) printf("\t\tLeafs with 2^n pointers:\n"); 358 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0); 359 360 (void) printf("\t\tBlocks with n*5 entries:\n"); 361 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0); 362 363 (void) printf("\t\tBlocks n/10 full:\n"); 364 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0); 365 366 (void) printf("\t\tEntries with n chunks:\n"); 367 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0); 368 369 (void) printf("\t\tBuckets with n entries:\n"); 370 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0); 371 } 372 373 /*ARGSUSED*/ 374 static void 375 dump_none(objset_t *os, uint64_t object, void *data, size_t size) 376 { 377 } 378 379 /*ARGSUSED*/ 380 static void 381 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size) 382 { 383 (void) printf("\tUNKNOWN OBJECT TYPE\n"); 384 } 385 386 /*ARGSUSED*/ 387 void 388 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 389 { 390 } 391 392 /*ARGSUSED*/ 393 static void 394 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 395 { 396 } 397 398 /*ARGSUSED*/ 399 static void 400 dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 401 { 402 zap_cursor_t zc; 403 zap_attribute_t attr; 404 void *prop; 405 int i; 406 407 dump_zap_stats(os, object); 408 (void) printf("\n"); 409 410 for (zap_cursor_init(&zc, os, object); 411 zap_cursor_retrieve(&zc, &attr) == 0; 412 zap_cursor_advance(&zc)) { 413 (void) printf("\t\t%s = ", attr.za_name); 414 if (attr.za_num_integers == 0) { 415 (void) printf("\n"); 416 continue; 417 } 418 prop = umem_zalloc(attr.za_num_integers * 419 attr.za_integer_length, UMEM_NOFAIL); 420 (void) zap_lookup(os, object, attr.za_name, 421 attr.za_integer_length, attr.za_num_integers, prop); 422 if (attr.za_integer_length == 1) { 423 (void) printf("%s", (char *)prop); 424 } else { 425 for (i = 0; i < attr.za_num_integers; i++) { 426 switch (attr.za_integer_length) { 427 case 2: 428 (void) printf("%u ", 429 ((uint16_t *)prop)[i]); 430 break; 431 case 4: 432 (void) printf("%u ", 433 ((uint32_t *)prop)[i]); 434 break; 435 case 8: 436 (void) printf("%lld ", 437 (u_longlong_t)((int64_t *)prop)[i]); 438 break; 439 } 440 } 441 } 442 (void) printf("\n"); 443 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 444 } 445 zap_cursor_fini(&zc); 446 } 447 448 static void 449 dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size) 450 { 451 bpobj_phys_t *bpop = data; 452 char bytes[32], comp[32], uncomp[32]; 453 454 if (bpop == NULL) 455 return; 456 457 zdb_nicenum(bpop->bpo_bytes, bytes); 458 zdb_nicenum(bpop->bpo_comp, comp); 459 zdb_nicenum(bpop->bpo_uncomp, uncomp); 460 461 (void) printf("\t\tnum_blkptrs = %llu\n", 462 (u_longlong_t)bpop->bpo_num_blkptrs); 463 (void) printf("\t\tbytes = %s\n", bytes); 464 if (size >= BPOBJ_SIZE_V1) { 465 (void) printf("\t\tcomp = %s\n", comp); 466 (void) printf("\t\tuncomp = %s\n", uncomp); 467 } 468 if (size >= sizeof (*bpop)) { 469 (void) printf("\t\tsubobjs = %llu\n", 470 (u_longlong_t)bpop->bpo_subobjs); 471 (void) printf("\t\tnum_subobjs = %llu\n", 472 (u_longlong_t)bpop->bpo_num_subobjs); 473 } 474 475 if (dump_opt['d'] < 5) 476 return; 477 478 for (uint64_t i = 0; i < bpop->bpo_num_blkptrs; i++) { 479 char blkbuf[BP_SPRINTF_LEN]; 480 blkptr_t bp; 481 482 int err = dmu_read(os, object, 483 i * sizeof (bp), sizeof (bp), &bp, 0); 484 if (err != 0) { 485 (void) printf("got error %u from dmu_read\n", err); 486 break; 487 } 488 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp); 489 (void) printf("\t%s\n", blkbuf); 490 } 491 } 492 493 /* ARGSUSED */ 494 static void 495 dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size) 496 { 497 dmu_object_info_t doi; 498 499 VERIFY0(dmu_object_info(os, object, &doi)); 500 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP); 501 502 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0); 503 if (err != 0) { 504 (void) printf("got error %u from dmu_read\n", err); 505 kmem_free(subobjs, doi.doi_max_offset); 506 return; 507 } 508 509 int64_t last_nonzero = -1; 510 for (uint64_t i = 0; i < doi.doi_max_offset / 8; i++) { 511 if (subobjs[i] != 0) 512 last_nonzero = i; 513 } 514 515 for (int64_t i = 0; i <= last_nonzero; i++) { 516 (void) printf("\t%llu\n", (longlong_t)subobjs[i]); 517 } 518 kmem_free(subobjs, doi.doi_max_offset); 519 } 520 521 /*ARGSUSED*/ 522 static void 523 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size) 524 { 525 dump_zap_stats(os, object); 526 /* contents are printed elsewhere, properly decoded */ 527 } 528 529 /*ARGSUSED*/ 530 static void 531 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size) 532 { 533 zap_cursor_t zc; 534 zap_attribute_t attr; 535 536 dump_zap_stats(os, object); 537 (void) printf("\n"); 538 539 for (zap_cursor_init(&zc, os, object); 540 zap_cursor_retrieve(&zc, &attr) == 0; 541 zap_cursor_advance(&zc)) { 542 (void) printf("\t\t%s = ", attr.za_name); 543 if (attr.za_num_integers == 0) { 544 (void) printf("\n"); 545 continue; 546 } 547 (void) printf(" %llx : [%d:%d:%d]\n", 548 (u_longlong_t)attr.za_first_integer, 549 (int)ATTR_LENGTH(attr.za_first_integer), 550 (int)ATTR_BSWAP(attr.za_first_integer), 551 (int)ATTR_NUM(attr.za_first_integer)); 552 } 553 zap_cursor_fini(&zc); 554 } 555 556 /*ARGSUSED*/ 557 static void 558 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size) 559 { 560 zap_cursor_t zc; 561 zap_attribute_t attr; 562 uint16_t *layout_attrs; 563 int i; 564 565 dump_zap_stats(os, object); 566 (void) printf("\n"); 567 568 for (zap_cursor_init(&zc, os, object); 569 zap_cursor_retrieve(&zc, &attr) == 0; 570 zap_cursor_advance(&zc)) { 571 (void) printf("\t\t%s = [", attr.za_name); 572 if (attr.za_num_integers == 0) { 573 (void) printf("\n"); 574 continue; 575 } 576 577 VERIFY(attr.za_integer_length == 2); 578 layout_attrs = umem_zalloc(attr.za_num_integers * 579 attr.za_integer_length, UMEM_NOFAIL); 580 581 VERIFY(zap_lookup(os, object, attr.za_name, 582 attr.za_integer_length, 583 attr.za_num_integers, layout_attrs) == 0); 584 585 for (i = 0; i != attr.za_num_integers; i++) 586 (void) printf(" %d ", (int)layout_attrs[i]); 587 (void) printf("]\n"); 588 umem_free(layout_attrs, 589 attr.za_num_integers * attr.za_integer_length); 590 } 591 zap_cursor_fini(&zc); 592 } 593 594 /*ARGSUSED*/ 595 static void 596 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 597 { 598 zap_cursor_t zc; 599 zap_attribute_t attr; 600 const char *typenames[] = { 601 /* 0 */ "not specified", 602 /* 1 */ "FIFO", 603 /* 2 */ "Character Device", 604 /* 3 */ "3 (invalid)", 605 /* 4 */ "Directory", 606 /* 5 */ "5 (invalid)", 607 /* 6 */ "Block Device", 608 /* 7 */ "7 (invalid)", 609 /* 8 */ "Regular File", 610 /* 9 */ "9 (invalid)", 611 /* 10 */ "Symbolic Link", 612 /* 11 */ "11 (invalid)", 613 /* 12 */ "Socket", 614 /* 13 */ "Door", 615 /* 14 */ "Event Port", 616 /* 15 */ "15 (invalid)", 617 }; 618 619 dump_zap_stats(os, object); 620 (void) printf("\n"); 621 622 for (zap_cursor_init(&zc, os, object); 623 zap_cursor_retrieve(&zc, &attr) == 0; 624 zap_cursor_advance(&zc)) { 625 (void) printf("\t\t%s = %lld (type: %s)\n", 626 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 627 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 628 } 629 zap_cursor_fini(&zc); 630 } 631 632 int 633 get_dtl_refcount(vdev_t *vd) 634 { 635 int refcount = 0; 636 637 if (vd->vdev_ops->vdev_op_leaf) { 638 space_map_t *sm = vd->vdev_dtl_sm; 639 640 if (sm != NULL && 641 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 642 return (1); 643 return (0); 644 } 645 646 for (int c = 0; c < vd->vdev_children; c++) 647 refcount += get_dtl_refcount(vd->vdev_child[c]); 648 return (refcount); 649 } 650 651 int 652 get_metaslab_refcount(vdev_t *vd) 653 { 654 int refcount = 0; 655 656 if (vd->vdev_top == vd && !vd->vdev_removing) { 657 for (int m = 0; m < vd->vdev_ms_count; m++) { 658 space_map_t *sm = vd->vdev_ms[m]->ms_sm; 659 660 if (sm != NULL && 661 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 662 refcount++; 663 } 664 } 665 for (int c = 0; c < vd->vdev_children; c++) 666 refcount += get_metaslab_refcount(vd->vdev_child[c]); 667 668 return (refcount); 669 } 670 671 static int 672 verify_spacemap_refcounts(spa_t *spa) 673 { 674 uint64_t expected_refcount = 0; 675 uint64_t actual_refcount; 676 677 (void) feature_get_refcount(spa, 678 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM], 679 &expected_refcount); 680 actual_refcount = get_dtl_refcount(spa->spa_root_vdev); 681 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev); 682 683 if (expected_refcount != actual_refcount) { 684 (void) printf("space map refcount mismatch: expected %lld != " 685 "actual %lld\n", 686 (longlong_t)expected_refcount, 687 (longlong_t)actual_refcount); 688 return (2); 689 } 690 return (0); 691 } 692 693 static void 694 dump_spacemap(objset_t *os, space_map_t *sm) 695 { 696 uint64_t alloc, offset, entry; 697 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 698 "INVALID", "INVALID", "INVALID", "INVALID" }; 699 700 if (sm == NULL) 701 return; 702 703 /* 704 * Print out the freelist entries in both encoded and decoded form. 705 */ 706 alloc = 0; 707 for (offset = 0; offset < space_map_length(sm); 708 offset += sizeof (entry)) { 709 uint8_t mapshift = sm->sm_shift; 710 711 VERIFY0(dmu_read(os, space_map_object(sm), offset, 712 sizeof (entry), &entry, DMU_READ_PREFETCH)); 713 if (SM_DEBUG_DECODE(entry)) { 714 715 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n", 716 (u_longlong_t)(offset / sizeof (entry)), 717 ddata[SM_DEBUG_ACTION_DECODE(entry)], 718 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry), 719 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry)); 720 } else { 721 (void) printf("\t [%6llu] %c range:" 722 " %010llx-%010llx size: %06llx\n", 723 (u_longlong_t)(offset / sizeof (entry)), 724 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 725 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 726 mapshift) + sm->sm_start), 727 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 728 mapshift) + sm->sm_start + 729 (SM_RUN_DECODE(entry) << mapshift)), 730 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift)); 731 if (SM_TYPE_DECODE(entry) == SM_ALLOC) 732 alloc += SM_RUN_DECODE(entry) << mapshift; 733 else 734 alloc -= SM_RUN_DECODE(entry) << mapshift; 735 } 736 } 737 if (alloc != space_map_allocated(sm)) { 738 (void) printf("space_map_object alloc (%llu) INCONSISTENT " 739 "with space map summary (%llu)\n", 740 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc); 741 } 742 } 743 744 static void 745 dump_metaslab_stats(metaslab_t *msp) 746 { 747 char maxbuf[32]; 748 range_tree_t *rt = msp->ms_tree; 749 avl_tree_t *t = &msp->ms_size_tree; 750 int free_pct = range_tree_space(rt) * 100 / msp->ms_size; 751 752 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf); 753 754 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", 755 "segments", avl_numnodes(t), "maxsize", maxbuf, 756 "freepct", free_pct); 757 (void) printf("\tIn-memory histogram:\n"); 758 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 759 } 760 761 static void 762 dump_metaslab(metaslab_t *msp) 763 { 764 vdev_t *vd = msp->ms_group->mg_vd; 765 spa_t *spa = vd->vdev_spa; 766 space_map_t *sm = msp->ms_sm; 767 char freebuf[32]; 768 769 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf); 770 771 (void) printf( 772 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", 773 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start, 774 (u_longlong_t)space_map_object(sm), freebuf); 775 776 if (dump_opt['m'] > 2 && !dump_opt['L']) { 777 mutex_enter(&msp->ms_lock); 778 metaslab_load_wait(msp); 779 if (!msp->ms_loaded) { 780 VERIFY0(metaslab_load(msp)); 781 range_tree_stat_verify(msp->ms_tree); 782 } 783 dump_metaslab_stats(msp); 784 metaslab_unload(msp); 785 mutex_exit(&msp->ms_lock); 786 } 787 788 if (dump_opt['m'] > 1 && sm != NULL && 789 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) { 790 /* 791 * The space map histogram represents free space in chunks 792 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift). 793 */ 794 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n", 795 (u_longlong_t)msp->ms_fragmentation); 796 dump_histogram(sm->sm_phys->smp_histogram, 797 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift); 798 } 799 800 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) { 801 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift)); 802 803 mutex_enter(&msp->ms_lock); 804 dump_spacemap(spa->spa_meta_objset, msp->ms_sm); 805 mutex_exit(&msp->ms_lock); 806 } 807 } 808 809 static void 810 print_vdev_metaslab_header(vdev_t *vd) 811 { 812 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n", 813 (u_longlong_t)vd->vdev_id, 814 "metaslabs", (u_longlong_t)vd->vdev_ms_count, 815 "offset", "spacemap", "free"); 816 (void) printf("\t%15s %19s %15s %10s\n", 817 "---------------", "-------------------", 818 "---------------", "-------------"); 819 } 820 821 static void 822 dump_metaslab_groups(spa_t *spa) 823 { 824 vdev_t *rvd = spa->spa_root_vdev; 825 metaslab_class_t *mc = spa_normal_class(spa); 826 uint64_t fragmentation; 827 828 metaslab_class_histogram_verify(mc); 829 830 for (int c = 0; c < rvd->vdev_children; c++) { 831 vdev_t *tvd = rvd->vdev_child[c]; 832 metaslab_group_t *mg = tvd->vdev_mg; 833 834 if (mg->mg_class != mc) 835 continue; 836 837 metaslab_group_histogram_verify(mg); 838 mg->mg_fragmentation = metaslab_group_fragmentation(mg); 839 840 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t" 841 "fragmentation", 842 (u_longlong_t)tvd->vdev_id, 843 (u_longlong_t)tvd->vdev_ms_count); 844 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) { 845 (void) printf("%3s\n", "-"); 846 } else { 847 (void) printf("%3llu%%\n", 848 (u_longlong_t)mg->mg_fragmentation); 849 } 850 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 851 } 852 853 (void) printf("\tpool %s\tfragmentation", spa_name(spa)); 854 fragmentation = metaslab_class_fragmentation(mc); 855 if (fragmentation == ZFS_FRAG_INVALID) 856 (void) printf("\t%3s\n", "-"); 857 else 858 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation); 859 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 860 } 861 862 static void 863 dump_metaslabs(spa_t *spa) 864 { 865 vdev_t *vd, *rvd = spa->spa_root_vdev; 866 uint64_t m, c = 0, children = rvd->vdev_children; 867 868 (void) printf("\nMetaslabs:\n"); 869 870 if (!dump_opt['d'] && zopt_objects > 0) { 871 c = zopt_object[0]; 872 873 if (c >= children) 874 (void) fatal("bad vdev id: %llu", (u_longlong_t)c); 875 876 if (zopt_objects > 1) { 877 vd = rvd->vdev_child[c]; 878 print_vdev_metaslab_header(vd); 879 880 for (m = 1; m < zopt_objects; m++) { 881 if (zopt_object[m] < vd->vdev_ms_count) 882 dump_metaslab( 883 vd->vdev_ms[zopt_object[m]]); 884 else 885 (void) fprintf(stderr, "bad metaslab " 886 "number %llu\n", 887 (u_longlong_t)zopt_object[m]); 888 } 889 (void) printf("\n"); 890 return; 891 } 892 children = c + 1; 893 } 894 for (; c < children; c++) { 895 vd = rvd->vdev_child[c]; 896 print_vdev_metaslab_header(vd); 897 898 for (m = 0; m < vd->vdev_ms_count; m++) 899 dump_metaslab(vd->vdev_ms[m]); 900 (void) printf("\n"); 901 } 902 } 903 904 static void 905 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) 906 { 907 const ddt_phys_t *ddp = dde->dde_phys; 908 const ddt_key_t *ddk = &dde->dde_key; 909 char *types[4] = { "ditto", "single", "double", "triple" }; 910 char blkbuf[BP_SPRINTF_LEN]; 911 blkptr_t blk; 912 913 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 914 if (ddp->ddp_phys_birth == 0) 915 continue; 916 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); 917 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk); 918 (void) printf("index %llx refcnt %llu %s %s\n", 919 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, 920 types[p], blkbuf); 921 } 922 } 923 924 static void 925 dump_dedup_ratio(const ddt_stat_t *dds) 926 { 927 double rL, rP, rD, D, dedup, compress, copies; 928 929 if (dds->dds_blocks == 0) 930 return; 931 932 rL = (double)dds->dds_ref_lsize; 933 rP = (double)dds->dds_ref_psize; 934 rD = (double)dds->dds_ref_dsize; 935 D = (double)dds->dds_dsize; 936 937 dedup = rD / D; 938 compress = rL / rP; 939 copies = rD / rP; 940 941 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " 942 "dedup * compress / copies = %.2f\n\n", 943 dedup, compress, copies, dedup * compress / copies); 944 } 945 946 static void 947 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class) 948 { 949 char name[DDT_NAMELEN]; 950 ddt_entry_t dde; 951 uint64_t walk = 0; 952 dmu_object_info_t doi; 953 uint64_t count, dspace, mspace; 954 int error; 955 956 error = ddt_object_info(ddt, type, class, &doi); 957 958 if (error == ENOENT) 959 return; 960 ASSERT(error == 0); 961 962 if ((count = ddt_object_count(ddt, type, class)) == 0) 963 return; 964 965 dspace = doi.doi_physical_blocks_512 << 9; 966 mspace = doi.doi_fill_count * doi.doi_data_block_size; 967 968 ddt_object_name(ddt, type, class, name); 969 970 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n", 971 name, 972 (u_longlong_t)count, 973 (u_longlong_t)(dspace / count), 974 (u_longlong_t)(mspace / count)); 975 976 if (dump_opt['D'] < 3) 977 return; 978 979 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]); 980 981 if (dump_opt['D'] < 4) 982 return; 983 984 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE) 985 return; 986 987 (void) printf("%s contents:\n\n", name); 988 989 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0) 990 dump_dde(ddt, &dde, walk); 991 992 ASSERT(error == ENOENT); 993 994 (void) printf("\n"); 995 } 996 997 static void 998 dump_all_ddts(spa_t *spa) 999 { 1000 ddt_histogram_t ddh_total = { 0 }; 1001 ddt_stat_t dds_total = { 0 }; 1002 1003 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { 1004 ddt_t *ddt = spa->spa_ddt[c]; 1005 for (enum ddt_type type = 0; type < DDT_TYPES; type++) { 1006 for (enum ddt_class class = 0; class < DDT_CLASSES; 1007 class++) { 1008 dump_ddt(ddt, type, class); 1009 } 1010 } 1011 } 1012 1013 ddt_get_dedup_stats(spa, &dds_total); 1014 1015 if (dds_total.dds_blocks == 0) { 1016 (void) printf("All DDTs are empty\n"); 1017 return; 1018 } 1019 1020 (void) printf("\n"); 1021 1022 if (dump_opt['D'] > 1) { 1023 (void) printf("DDT histogram (aggregated over all DDTs):\n"); 1024 ddt_get_dedup_histogram(spa, &ddh_total); 1025 zpool_dump_ddt(&dds_total, &ddh_total); 1026 } 1027 1028 dump_dedup_ratio(&dds_total); 1029 } 1030 1031 static void 1032 dump_dtl_seg(void *arg, uint64_t start, uint64_t size) 1033 { 1034 char *prefix = arg; 1035 1036 (void) printf("%s [%llu,%llu) length %llu\n", 1037 prefix, 1038 (u_longlong_t)start, 1039 (u_longlong_t)(start + size), 1040 (u_longlong_t)(size)); 1041 } 1042 1043 static void 1044 dump_dtl(vdev_t *vd, int indent) 1045 { 1046 spa_t *spa = vd->vdev_spa; 1047 boolean_t required; 1048 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" }; 1049 char prefix[256]; 1050 1051 spa_vdev_state_enter(spa, SCL_NONE); 1052 required = vdev_dtl_required(vd); 1053 (void) spa_vdev_state_exit(spa, NULL, 0); 1054 1055 if (indent == 0) 1056 (void) printf("\nDirty time logs:\n\n"); 1057 1058 (void) printf("\t%*s%s [%s]\n", indent, "", 1059 vd->vdev_path ? vd->vdev_path : 1060 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 1061 required ? "DTL-required" : "DTL-expendable"); 1062 1063 for (int t = 0; t < DTL_TYPES; t++) { 1064 range_tree_t *rt = vd->vdev_dtl[t]; 1065 if (range_tree_space(rt) == 0) 1066 continue; 1067 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 1068 indent + 2, "", name[t]); 1069 mutex_enter(rt->rt_lock); 1070 range_tree_walk(rt, dump_dtl_seg, prefix); 1071 mutex_exit(rt->rt_lock); 1072 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 1073 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm); 1074 } 1075 1076 for (int c = 0; c < vd->vdev_children; c++) 1077 dump_dtl(vd->vdev_child[c], indent + 4); 1078 } 1079 1080 static void 1081 dump_history(spa_t *spa) 1082 { 1083 nvlist_t **events = NULL; 1084 uint64_t resid, len, off = 0; 1085 uint_t num = 0; 1086 int error; 1087 time_t tsec; 1088 struct tm t; 1089 char tbuf[30]; 1090 char internalstr[MAXPATHLEN]; 1091 1092 char *buf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 1093 do { 1094 len = SPA_MAXBLOCKSIZE; 1095 1096 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 1097 (void) fprintf(stderr, "Unable to read history: " 1098 "error %d\n", error); 1099 umem_free(buf, SPA_MAXBLOCKSIZE); 1100 return; 1101 } 1102 1103 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 1104 break; 1105 1106 off -= resid; 1107 } while (len != 0); 1108 umem_free(buf, SPA_MAXBLOCKSIZE); 1109 1110 (void) printf("\nHistory:\n"); 1111 for (int i = 0; i < num; i++) { 1112 uint64_t time, txg, ievent; 1113 char *cmd, *intstr; 1114 boolean_t printed = B_FALSE; 1115 1116 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, 1117 &time) != 0) 1118 goto next; 1119 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, 1120 &cmd) != 0) { 1121 if (nvlist_lookup_uint64(events[i], 1122 ZPOOL_HIST_INT_EVENT, &ievent) != 0) 1123 goto next; 1124 verify(nvlist_lookup_uint64(events[i], 1125 ZPOOL_HIST_TXG, &txg) == 0); 1126 verify(nvlist_lookup_string(events[i], 1127 ZPOOL_HIST_INT_STR, &intstr) == 0); 1128 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 1129 goto next; 1130 1131 (void) snprintf(internalstr, 1132 sizeof (internalstr), 1133 "[internal %s txg:%lld] %s", 1134 zfs_history_event_names[ievent], txg, 1135 intstr); 1136 cmd = internalstr; 1137 } 1138 tsec = time; 1139 (void) localtime_r(&tsec, &t); 1140 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 1141 (void) printf("%s %s\n", tbuf, cmd); 1142 printed = B_TRUE; 1143 1144 next: 1145 if (dump_opt['h'] > 1) { 1146 if (!printed) 1147 (void) printf("unrecognized record:\n"); 1148 dump_nvlist(events[i], 2); 1149 } 1150 } 1151 } 1152 1153 /*ARGSUSED*/ 1154 static void 1155 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 1156 { 1157 } 1158 1159 static uint64_t 1160 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, 1161 const zbookmark_phys_t *zb) 1162 { 1163 if (dnp == NULL) { 1164 ASSERT(zb->zb_level < 0); 1165 if (zb->zb_object == 0) 1166 return (zb->zb_blkid); 1167 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 1168 } 1169 1170 ASSERT(zb->zb_level >= 0); 1171 1172 return ((zb->zb_blkid << 1173 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 1174 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 1175 } 1176 1177 static void 1178 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp) 1179 { 1180 const dva_t *dva = bp->blk_dva; 1181 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 1182 1183 if (dump_opt['b'] >= 6) { 1184 snprintf_blkptr(blkbuf, buflen, bp); 1185 return; 1186 } 1187 1188 if (BP_IS_EMBEDDED(bp)) { 1189 (void) sprintf(blkbuf, 1190 "EMBEDDED et=%u %llxL/%llxP B=%llu", 1191 (int)BPE_GET_ETYPE(bp), 1192 (u_longlong_t)BPE_GET_LSIZE(bp), 1193 (u_longlong_t)BPE_GET_PSIZE(bp), 1194 (u_longlong_t)bp->blk_birth); 1195 return; 1196 } 1197 1198 blkbuf[0] = '\0'; 1199 for (int i = 0; i < ndvas; i++) 1200 (void) snprintf(blkbuf + strlen(blkbuf), 1201 buflen - strlen(blkbuf), "%llu:%llx:%llx ", 1202 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 1203 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 1204 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 1205 1206 if (BP_IS_HOLE(bp)) { 1207 (void) snprintf(blkbuf + strlen(blkbuf), 1208 buflen - strlen(blkbuf), 1209 "%llxL B=%llu", 1210 (u_longlong_t)BP_GET_LSIZE(bp), 1211 (u_longlong_t)bp->blk_birth); 1212 } else { 1213 (void) snprintf(blkbuf + strlen(blkbuf), 1214 buflen - strlen(blkbuf), 1215 "%llxL/%llxP F=%llu B=%llu/%llu", 1216 (u_longlong_t)BP_GET_LSIZE(bp), 1217 (u_longlong_t)BP_GET_PSIZE(bp), 1218 (u_longlong_t)BP_GET_FILL(bp), 1219 (u_longlong_t)bp->blk_birth, 1220 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 1221 } 1222 } 1223 1224 static void 1225 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb, 1226 const dnode_phys_t *dnp) 1227 { 1228 char blkbuf[BP_SPRINTF_LEN]; 1229 int l; 1230 1231 if (!BP_IS_EMBEDDED(bp)) { 1232 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 1233 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 1234 } 1235 1236 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 1237 1238 ASSERT(zb->zb_level >= 0); 1239 1240 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 1241 if (l == zb->zb_level) { 1242 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 1243 } else { 1244 (void) printf(" "); 1245 } 1246 } 1247 1248 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1249 (void) printf("%s\n", blkbuf); 1250 } 1251 1252 static int 1253 visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 1254 blkptr_t *bp, const zbookmark_phys_t *zb) 1255 { 1256 int err = 0; 1257 1258 if (bp->blk_birth == 0) 1259 return (0); 1260 1261 print_indirect(bp, zb, dnp); 1262 1263 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) { 1264 arc_flags_t flags = ARC_FLAG_WAIT; 1265 int i; 1266 blkptr_t *cbp; 1267 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 1268 arc_buf_t *buf; 1269 uint64_t fill = 0; 1270 1271 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 1272 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 1273 if (err) 1274 return (err); 1275 ASSERT(buf->b_data); 1276 1277 /* recursively visit blocks below this */ 1278 cbp = buf->b_data; 1279 for (i = 0; i < epb; i++, cbp++) { 1280 zbookmark_phys_t czb; 1281 1282 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 1283 zb->zb_level - 1, 1284 zb->zb_blkid * epb + i); 1285 err = visit_indirect(spa, dnp, cbp, &czb); 1286 if (err) 1287 break; 1288 fill += BP_GET_FILL(cbp); 1289 } 1290 if (!err) 1291 ASSERT3U(fill, ==, BP_GET_FILL(bp)); 1292 arc_buf_destroy(buf, &buf); 1293 } 1294 1295 return (err); 1296 } 1297 1298 /*ARGSUSED*/ 1299 static void 1300 dump_indirect(dnode_t *dn) 1301 { 1302 dnode_phys_t *dnp = dn->dn_phys; 1303 int j; 1304 zbookmark_phys_t czb; 1305 1306 (void) printf("Indirect blocks:\n"); 1307 1308 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 1309 dn->dn_object, dnp->dn_nlevels - 1, 0); 1310 for (j = 0; j < dnp->dn_nblkptr; j++) { 1311 czb.zb_blkid = j; 1312 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 1313 &dnp->dn_blkptr[j], &czb); 1314 } 1315 1316 (void) printf("\n"); 1317 } 1318 1319 /*ARGSUSED*/ 1320 static void 1321 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 1322 { 1323 dsl_dir_phys_t *dd = data; 1324 time_t crtime; 1325 char nice[32]; 1326 1327 if (dd == NULL) 1328 return; 1329 1330 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 1331 1332 crtime = dd->dd_creation_time; 1333 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1334 (void) printf("\t\thead_dataset_obj = %llu\n", 1335 (u_longlong_t)dd->dd_head_dataset_obj); 1336 (void) printf("\t\tparent_dir_obj = %llu\n", 1337 (u_longlong_t)dd->dd_parent_obj); 1338 (void) printf("\t\torigin_obj = %llu\n", 1339 (u_longlong_t)dd->dd_origin_obj); 1340 (void) printf("\t\tchild_dir_zapobj = %llu\n", 1341 (u_longlong_t)dd->dd_child_dir_zapobj); 1342 zdb_nicenum(dd->dd_used_bytes, nice); 1343 (void) printf("\t\tused_bytes = %s\n", nice); 1344 zdb_nicenum(dd->dd_compressed_bytes, nice); 1345 (void) printf("\t\tcompressed_bytes = %s\n", nice); 1346 zdb_nicenum(dd->dd_uncompressed_bytes, nice); 1347 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 1348 zdb_nicenum(dd->dd_quota, nice); 1349 (void) printf("\t\tquota = %s\n", nice); 1350 zdb_nicenum(dd->dd_reserved, nice); 1351 (void) printf("\t\treserved = %s\n", nice); 1352 (void) printf("\t\tprops_zapobj = %llu\n", 1353 (u_longlong_t)dd->dd_props_zapobj); 1354 (void) printf("\t\tdeleg_zapobj = %llu\n", 1355 (u_longlong_t)dd->dd_deleg_zapobj); 1356 (void) printf("\t\tflags = %llx\n", 1357 (u_longlong_t)dd->dd_flags); 1358 1359 #define DO(which) \ 1360 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \ 1361 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 1362 DO(HEAD); 1363 DO(SNAP); 1364 DO(CHILD); 1365 DO(CHILD_RSRV); 1366 DO(REFRSRV); 1367 #undef DO 1368 } 1369 1370 /*ARGSUSED*/ 1371 static void 1372 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 1373 { 1374 dsl_dataset_phys_t *ds = data; 1375 time_t crtime; 1376 char used[32], compressed[32], uncompressed[32], unique[32]; 1377 char blkbuf[BP_SPRINTF_LEN]; 1378 1379 if (ds == NULL) 1380 return; 1381 1382 ASSERT(size == sizeof (*ds)); 1383 crtime = ds->ds_creation_time; 1384 zdb_nicenum(ds->ds_referenced_bytes, used); 1385 zdb_nicenum(ds->ds_compressed_bytes, compressed); 1386 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed); 1387 zdb_nicenum(ds->ds_unique_bytes, unique); 1388 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp); 1389 1390 (void) printf("\t\tdir_obj = %llu\n", 1391 (u_longlong_t)ds->ds_dir_obj); 1392 (void) printf("\t\tprev_snap_obj = %llu\n", 1393 (u_longlong_t)ds->ds_prev_snap_obj); 1394 (void) printf("\t\tprev_snap_txg = %llu\n", 1395 (u_longlong_t)ds->ds_prev_snap_txg); 1396 (void) printf("\t\tnext_snap_obj = %llu\n", 1397 (u_longlong_t)ds->ds_next_snap_obj); 1398 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1399 (u_longlong_t)ds->ds_snapnames_zapobj); 1400 (void) printf("\t\tnum_children = %llu\n", 1401 (u_longlong_t)ds->ds_num_children); 1402 (void) printf("\t\tuserrefs_obj = %llu\n", 1403 (u_longlong_t)ds->ds_userrefs_obj); 1404 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1405 (void) printf("\t\tcreation_txg = %llu\n", 1406 (u_longlong_t)ds->ds_creation_txg); 1407 (void) printf("\t\tdeadlist_obj = %llu\n", 1408 (u_longlong_t)ds->ds_deadlist_obj); 1409 (void) printf("\t\tused_bytes = %s\n", used); 1410 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1411 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1412 (void) printf("\t\tunique = %s\n", unique); 1413 (void) printf("\t\tfsid_guid = %llu\n", 1414 (u_longlong_t)ds->ds_fsid_guid); 1415 (void) printf("\t\tguid = %llu\n", 1416 (u_longlong_t)ds->ds_guid); 1417 (void) printf("\t\tflags = %llx\n", 1418 (u_longlong_t)ds->ds_flags); 1419 (void) printf("\t\tnext_clones_obj = %llu\n", 1420 (u_longlong_t)ds->ds_next_clones_obj); 1421 (void) printf("\t\tprops_obj = %llu\n", 1422 (u_longlong_t)ds->ds_props_obj); 1423 (void) printf("\t\tbp = %s\n", blkbuf); 1424 } 1425 1426 /* ARGSUSED */ 1427 static int 1428 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1429 { 1430 char blkbuf[BP_SPRINTF_LEN]; 1431 1432 if (bp->blk_birth != 0) { 1433 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 1434 (void) printf("\t%s\n", blkbuf); 1435 } 1436 return (0); 1437 } 1438 1439 static void 1440 dump_bptree(objset_t *os, uint64_t obj, char *name) 1441 { 1442 char bytes[32]; 1443 bptree_phys_t *bt; 1444 dmu_buf_t *db; 1445 1446 if (dump_opt['d'] < 3) 1447 return; 1448 1449 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 1450 bt = db->db_data; 1451 zdb_nicenum(bt->bt_bytes, bytes); 1452 (void) printf("\n %s: %llu datasets, %s\n", 1453 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 1454 dmu_buf_rele(db, FTAG); 1455 1456 if (dump_opt['d'] < 5) 1457 return; 1458 1459 (void) printf("\n"); 1460 1461 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 1462 } 1463 1464 /* ARGSUSED */ 1465 static int 1466 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1467 { 1468 char blkbuf[BP_SPRINTF_LEN]; 1469 1470 ASSERT(bp->blk_birth != 0); 1471 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1472 (void) printf("\t%s\n", blkbuf); 1473 return (0); 1474 } 1475 1476 static void 1477 dump_full_bpobj(bpobj_t *bpo, char *name, int indent) 1478 { 1479 char bytes[32]; 1480 char comp[32]; 1481 char uncomp[32]; 1482 1483 if (dump_opt['d'] < 3) 1484 return; 1485 1486 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes); 1487 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1488 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp); 1489 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp); 1490 (void) printf(" %*s: object %llu, %llu local blkptrs, " 1491 "%llu subobjs in object %llu, %s (%s/%s comp)\n", 1492 indent * 8, name, 1493 (u_longlong_t)bpo->bpo_object, 1494 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1495 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 1496 (u_longlong_t)bpo->bpo_phys->bpo_subobjs, 1497 bytes, comp, uncomp); 1498 1499 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1500 uint64_t subobj; 1501 bpobj_t subbpo; 1502 int error; 1503 VERIFY0(dmu_read(bpo->bpo_os, 1504 bpo->bpo_phys->bpo_subobjs, 1505 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1506 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1507 if (error != 0) { 1508 (void) printf("ERROR %u while trying to open " 1509 "subobj id %llu\n", 1510 error, (u_longlong_t)subobj); 1511 continue; 1512 } 1513 dump_full_bpobj(&subbpo, "subobj", indent + 1); 1514 bpobj_close(&subbpo); 1515 } 1516 } else { 1517 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", 1518 indent * 8, name, 1519 (u_longlong_t)bpo->bpo_object, 1520 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1521 bytes); 1522 } 1523 1524 if (dump_opt['d'] < 5) 1525 return; 1526 1527 1528 if (indent == 0) { 1529 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 1530 (void) printf("\n"); 1531 } 1532 } 1533 1534 static void 1535 dump_deadlist(dsl_deadlist_t *dl) 1536 { 1537 dsl_deadlist_entry_t *dle; 1538 uint64_t unused; 1539 char bytes[32]; 1540 char comp[32]; 1541 char uncomp[32]; 1542 1543 if (dump_opt['d'] < 3) 1544 return; 1545 1546 if (dl->dl_oldfmt) { 1547 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0); 1548 return; 1549 } 1550 1551 zdb_nicenum(dl->dl_phys->dl_used, bytes); 1552 zdb_nicenum(dl->dl_phys->dl_comp, comp); 1553 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp); 1554 (void) printf("\n Deadlist: %s (%s/%s comp)\n", 1555 bytes, comp, uncomp); 1556 1557 if (dump_opt['d'] < 4) 1558 return; 1559 1560 (void) printf("\n"); 1561 1562 /* force the tree to be loaded */ 1563 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); 1564 1565 for (dle = avl_first(&dl->dl_tree); dle; 1566 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1567 if (dump_opt['d'] >= 5) { 1568 char buf[128]; 1569 (void) snprintf(buf, sizeof (buf), 1570 "mintxg %llu -> obj %llu", 1571 (longlong_t)dle->dle_mintxg, 1572 (longlong_t)dle->dle_bpobj.bpo_object); 1573 1574 dump_full_bpobj(&dle->dle_bpobj, buf, 0); 1575 } else { 1576 (void) printf("mintxg %llu -> obj %llu\n", 1577 (longlong_t)dle->dle_mintxg, 1578 (longlong_t)dle->dle_bpobj.bpo_object); 1579 1580 } 1581 } 1582 } 1583 1584 static avl_tree_t idx_tree; 1585 static avl_tree_t domain_tree; 1586 static boolean_t fuid_table_loaded; 1587 static objset_t *sa_os = NULL; 1588 static sa_attr_type_t *sa_attr_table = NULL; 1589 1590 static int 1591 open_objset(const char *path, dmu_objset_type_t type, void *tag, objset_t **osp) 1592 { 1593 int err; 1594 uint64_t sa_attrs = 0; 1595 uint64_t version = 0; 1596 1597 VERIFY3P(sa_os, ==, NULL); 1598 err = dmu_objset_own(path, type, B_TRUE, tag, osp); 1599 if (err != 0) { 1600 (void) fprintf(stderr, "failed to own dataset '%s': %s\n", path, 1601 strerror(err)); 1602 return (err); 1603 } 1604 1605 if (dmu_objset_type(*osp) == DMU_OST_ZFS) { 1606 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZPL_VERSION_STR, 1607 8, 1, &version); 1608 if (version >= ZPL_VERSION_SA) { 1609 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 1610 8, 1, &sa_attrs); 1611 } 1612 err = sa_setup(*osp, sa_attrs, zfs_attr_table, ZPL_END, 1613 &sa_attr_table); 1614 if (err != 0) { 1615 (void) fprintf(stderr, "sa_setup failed: %s\n", 1616 strerror(err)); 1617 dmu_objset_disown(*osp, tag); 1618 *osp = NULL; 1619 } 1620 } 1621 sa_os = *osp; 1622 1623 return (0); 1624 } 1625 1626 static void 1627 close_objset(objset_t *os, void *tag) 1628 { 1629 VERIFY3P(os, ==, sa_os); 1630 if (os->os_sa != NULL) 1631 sa_tear_down(os); 1632 dmu_objset_disown(os, tag); 1633 sa_attr_table = NULL; 1634 sa_os = NULL; 1635 } 1636 1637 static void 1638 fuid_table_destroy() 1639 { 1640 if (fuid_table_loaded) { 1641 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 1642 fuid_table_loaded = B_FALSE; 1643 } 1644 } 1645 1646 /* 1647 * print uid or gid information. 1648 * For normal POSIX id just the id is printed in decimal format. 1649 * For CIFS files with FUID the fuid is printed in hex followed by 1650 * the domain-rid string. 1651 */ 1652 static void 1653 print_idstr(uint64_t id, const char *id_type) 1654 { 1655 if (FUID_INDEX(id)) { 1656 char *domain; 1657 1658 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 1659 (void) printf("\t%s %llx [%s-%d]\n", id_type, 1660 (u_longlong_t)id, domain, (int)FUID_RID(id)); 1661 } else { 1662 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 1663 } 1664 1665 } 1666 1667 static void 1668 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 1669 { 1670 uint32_t uid_idx, gid_idx; 1671 1672 uid_idx = FUID_INDEX(uid); 1673 gid_idx = FUID_INDEX(gid); 1674 1675 /* Load domain table, if not already loaded */ 1676 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 1677 uint64_t fuid_obj; 1678 1679 /* first find the fuid object. It lives in the master node */ 1680 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 1681 8, 1, &fuid_obj) == 0); 1682 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 1683 (void) zfs_fuid_table_load(os, fuid_obj, 1684 &idx_tree, &domain_tree); 1685 fuid_table_loaded = B_TRUE; 1686 } 1687 1688 print_idstr(uid, "uid"); 1689 print_idstr(gid, "gid"); 1690 } 1691 1692 /*ARGSUSED*/ 1693 static void 1694 dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 1695 { 1696 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 1697 sa_handle_t *hdl; 1698 uint64_t xattr, rdev, gen; 1699 uint64_t uid, gid, mode, fsize, parent, links; 1700 uint64_t pflags; 1701 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 1702 time_t z_crtime, z_atime, z_mtime, z_ctime; 1703 sa_bulk_attr_t bulk[12]; 1704 int idx = 0; 1705 int error; 1706 1707 VERIFY3P(os, ==, sa_os); 1708 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 1709 (void) printf("Failed to get handle for SA znode\n"); 1710 return; 1711 } 1712 1713 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 1714 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 1715 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 1716 &links, 8); 1717 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 1718 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 1719 &mode, 8); 1720 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 1721 NULL, &parent, 8); 1722 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 1723 &fsize, 8); 1724 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 1725 acctm, 16); 1726 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 1727 modtm, 16); 1728 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 1729 crtm, 16); 1730 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 1731 chgtm, 16); 1732 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 1733 &pflags, 8); 1734 1735 if (sa_bulk_lookup(hdl, bulk, idx)) { 1736 (void) sa_handle_destroy(hdl); 1737 return; 1738 } 1739 1740 error = zfs_obj_to_path(os, object, path, sizeof (path)); 1741 if (error != 0) { 1742 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>", 1743 (u_longlong_t)object); 1744 } 1745 if (dump_opt['d'] < 3) { 1746 (void) printf("\t%s\n", path); 1747 (void) sa_handle_destroy(hdl); 1748 return; 1749 } 1750 1751 z_crtime = (time_t)crtm[0]; 1752 z_atime = (time_t)acctm[0]; 1753 z_mtime = (time_t)modtm[0]; 1754 z_ctime = (time_t)chgtm[0]; 1755 1756 (void) printf("\tpath %s\n", path); 1757 dump_uidgid(os, uid, gid); 1758 (void) printf("\tatime %s", ctime(&z_atime)); 1759 (void) printf("\tmtime %s", ctime(&z_mtime)); 1760 (void) printf("\tctime %s", ctime(&z_ctime)); 1761 (void) printf("\tcrtime %s", ctime(&z_crtime)); 1762 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 1763 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 1764 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 1765 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 1766 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 1767 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 1768 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 1769 sizeof (uint64_t)) == 0) 1770 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 1771 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 1772 sizeof (uint64_t)) == 0) 1773 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 1774 sa_handle_destroy(hdl); 1775 } 1776 1777 /*ARGSUSED*/ 1778 static void 1779 dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 1780 { 1781 } 1782 1783 /*ARGSUSED*/ 1784 static void 1785 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 1786 { 1787 } 1788 1789 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 1790 dump_none, /* unallocated */ 1791 dump_zap, /* object directory */ 1792 dump_uint64, /* object array */ 1793 dump_none, /* packed nvlist */ 1794 dump_packed_nvlist, /* packed nvlist size */ 1795 dump_none, /* bpobj */ 1796 dump_bpobj, /* bpobj header */ 1797 dump_none, /* SPA space map header */ 1798 dump_none, /* SPA space map */ 1799 dump_none, /* ZIL intent log */ 1800 dump_dnode, /* DMU dnode */ 1801 dump_dmu_objset, /* DMU objset */ 1802 dump_dsl_dir, /* DSL directory */ 1803 dump_zap, /* DSL directory child map */ 1804 dump_zap, /* DSL dataset snap map */ 1805 dump_zap, /* DSL props */ 1806 dump_dsl_dataset, /* DSL dataset */ 1807 dump_znode, /* ZFS znode */ 1808 dump_acl, /* ZFS V0 ACL */ 1809 dump_uint8, /* ZFS plain file */ 1810 dump_zpldir, /* ZFS directory */ 1811 dump_zap, /* ZFS master node */ 1812 dump_zap, /* ZFS delete queue */ 1813 dump_uint8, /* zvol object */ 1814 dump_zap, /* zvol prop */ 1815 dump_uint8, /* other uint8[] */ 1816 dump_uint64, /* other uint64[] */ 1817 dump_zap, /* other ZAP */ 1818 dump_zap, /* persistent error log */ 1819 dump_uint8, /* SPA history */ 1820 dump_history_offsets, /* SPA history offsets */ 1821 dump_zap, /* Pool properties */ 1822 dump_zap, /* DSL permissions */ 1823 dump_acl, /* ZFS ACL */ 1824 dump_uint8, /* ZFS SYSACL */ 1825 dump_none, /* FUID nvlist */ 1826 dump_packed_nvlist, /* FUID nvlist size */ 1827 dump_zap, /* DSL dataset next clones */ 1828 dump_zap, /* DSL scrub queue */ 1829 dump_zap, /* ZFS user/group used */ 1830 dump_zap, /* ZFS user/group quota */ 1831 dump_zap, /* snapshot refcount tags */ 1832 dump_ddt_zap, /* DDT ZAP object */ 1833 dump_zap, /* DDT statistics */ 1834 dump_znode, /* SA object */ 1835 dump_zap, /* SA Master Node */ 1836 dump_sa_attrs, /* SA attribute registration */ 1837 dump_sa_layouts, /* SA attribute layouts */ 1838 dump_zap, /* DSL scrub translations */ 1839 dump_none, /* fake dedup BP */ 1840 dump_zap, /* deadlist */ 1841 dump_none, /* deadlist hdr */ 1842 dump_zap, /* dsl clones */ 1843 dump_bpobj_subobjs, /* bpobj subobjs */ 1844 dump_unknown, /* Unknown type, must be last */ 1845 }; 1846 1847 static void 1848 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1849 { 1850 dmu_buf_t *db = NULL; 1851 dmu_object_info_t doi; 1852 dnode_t *dn; 1853 void *bonus = NULL; 1854 size_t bsize = 0; 1855 char iblk[32], dblk[32], lsize[32], asize[32], fill[32]; 1856 char bonus_size[32]; 1857 char aux[50]; 1858 int error; 1859 1860 if (*print_header) { 1861 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n", 1862 "Object", "lvl", "iblk", "dblk", "dsize", "lsize", 1863 "%full", "type"); 1864 *print_header = 0; 1865 } 1866 1867 if (object == 0) { 1868 dn = DMU_META_DNODE(os); 1869 } else { 1870 error = dmu_bonus_hold(os, object, FTAG, &db); 1871 if (error) 1872 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1873 object, error); 1874 bonus = db->db_data; 1875 bsize = db->db_size; 1876 dn = DB_DNODE((dmu_buf_impl_t *)db); 1877 } 1878 dmu_object_info_from_dnode(dn, &doi); 1879 1880 zdb_nicenum(doi.doi_metadata_block_size, iblk); 1881 zdb_nicenum(doi.doi_data_block_size, dblk); 1882 zdb_nicenum(doi.doi_max_offset, lsize); 1883 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize); 1884 zdb_nicenum(doi.doi_bonus_size, bonus_size); 1885 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 1886 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 1887 doi.doi_max_offset); 1888 1889 aux[0] = '\0'; 1890 1891 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1892 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1893 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 1894 } 1895 1896 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1897 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1898 ZDB_COMPRESS_NAME(doi.doi_compress)); 1899 } 1900 1901 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n", 1902 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 1903 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 1904 1905 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1906 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n", 1907 "", "", "", "", "", bonus_size, "bonus", 1908 ZDB_OT_NAME(doi.doi_bonus_type)); 1909 } 1910 1911 if (verbosity >= 4) { 1912 (void) printf("\tdnode flags: %s%s%s\n", 1913 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 1914 "USED_BYTES " : "", 1915 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 1916 "USERUSED_ACCOUNTED " : "", 1917 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 1918 "SPILL_BLKPTR" : ""); 1919 (void) printf("\tdnode maxblkid: %llu\n", 1920 (longlong_t)dn->dn_phys->dn_maxblkid); 1921 1922 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, 1923 bonus, bsize); 1924 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); 1925 *print_header = 1; 1926 } 1927 1928 if (verbosity >= 5) 1929 dump_indirect(dn); 1930 1931 if (verbosity >= 5) { 1932 /* 1933 * Report the list of segments that comprise the object. 1934 */ 1935 uint64_t start = 0; 1936 uint64_t end; 1937 uint64_t blkfill = 1; 1938 int minlvl = 1; 1939 1940 if (dn->dn_type == DMU_OT_DNODE) { 1941 minlvl = 0; 1942 blkfill = DNODES_PER_BLOCK; 1943 } 1944 1945 for (;;) { 1946 char segsize[32]; 1947 error = dnode_next_offset(dn, 1948 0, &start, minlvl, blkfill, 0); 1949 if (error) 1950 break; 1951 end = start; 1952 error = dnode_next_offset(dn, 1953 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 1954 zdb_nicenum(end - start, segsize); 1955 (void) printf("\t\tsegment [%016llx, %016llx)" 1956 " size %5s\n", (u_longlong_t)start, 1957 (u_longlong_t)end, segsize); 1958 if (error) 1959 break; 1960 start = end; 1961 } 1962 } 1963 1964 if (db != NULL) 1965 dmu_buf_rele(db, FTAG); 1966 } 1967 1968 static char *objset_types[DMU_OST_NUMTYPES] = { 1969 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1970 1971 static void 1972 dump_dir(objset_t *os) 1973 { 1974 dmu_objset_stats_t dds; 1975 uint64_t object, object_count; 1976 uint64_t refdbytes, usedobjs, scratch; 1977 char numbuf[32]; 1978 char blkbuf[BP_SPRINTF_LEN + 20]; 1979 char osname[ZFS_MAX_DATASET_NAME_LEN]; 1980 char *type = "UNKNOWN"; 1981 int verbosity = dump_opt['d']; 1982 int print_header = 1; 1983 int i, error; 1984 1985 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 1986 dmu_objset_fast_stat(os, &dds); 1987 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 1988 1989 if (dds.dds_type < DMU_OST_NUMTYPES) 1990 type = objset_types[dds.dds_type]; 1991 1992 if (dds.dds_type == DMU_OST_META) { 1993 dds.dds_creation_txg = TXG_INITIAL; 1994 usedobjs = BP_GET_FILL(os->os_rootbp); 1995 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)-> 1996 dd_used_bytes; 1997 } else { 1998 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 1999 } 2000 2001 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp)); 2002 2003 zdb_nicenum(refdbytes, numbuf); 2004 2005 if (verbosity >= 4) { 2006 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp "); 2007 (void) snprintf_blkptr(blkbuf + strlen(blkbuf), 2008 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp); 2009 } else { 2010 blkbuf[0] = '\0'; 2011 } 2012 2013 dmu_objset_name(os, osname); 2014 2015 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 2016 "%s, %llu objects%s\n", 2017 osname, type, (u_longlong_t)dmu_objset_id(os), 2018 (u_longlong_t)dds.dds_creation_txg, 2019 numbuf, (u_longlong_t)usedobjs, blkbuf); 2020 2021 if (zopt_objects != 0) { 2022 for (i = 0; i < zopt_objects; i++) 2023 dump_object(os, zopt_object[i], verbosity, 2024 &print_header); 2025 (void) printf("\n"); 2026 return; 2027 } 2028 2029 if (dump_opt['i'] != 0 || verbosity >= 2) 2030 dump_intent_log(dmu_objset_zil(os)); 2031 2032 if (dmu_objset_ds(os) != NULL) 2033 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist); 2034 2035 if (verbosity < 2) 2036 return; 2037 2038 if (BP_IS_HOLE(os->os_rootbp)) 2039 return; 2040 2041 dump_object(os, 0, verbosity, &print_header); 2042 object_count = 0; 2043 if (DMU_USERUSED_DNODE(os) != NULL && 2044 DMU_USERUSED_DNODE(os)->dn_type != 0) { 2045 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 2046 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 2047 } 2048 2049 object = 0; 2050 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 2051 dump_object(os, object, verbosity, &print_header); 2052 object_count++; 2053 } 2054 2055 ASSERT3U(object_count, ==, usedobjs); 2056 2057 (void) printf("\n"); 2058 2059 if (error != ESRCH) { 2060 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 2061 abort(); 2062 } 2063 } 2064 2065 static void 2066 dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 2067 { 2068 time_t timestamp = ub->ub_timestamp; 2069 2070 (void) printf(header ? header : ""); 2071 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 2072 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 2073 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 2074 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 2075 (void) printf("\ttimestamp = %llu UTC = %s", 2076 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 2077 if (dump_opt['u'] >= 3) { 2078 char blkbuf[BP_SPRINTF_LEN]; 2079 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp); 2080 (void) printf("\trootbp = %s\n", blkbuf); 2081 } 2082 (void) printf(footer ? footer : ""); 2083 } 2084 2085 static void 2086 dump_config(spa_t *spa) 2087 { 2088 dmu_buf_t *db; 2089 size_t nvsize = 0; 2090 int error = 0; 2091 2092 2093 error = dmu_bonus_hold(spa->spa_meta_objset, 2094 spa->spa_config_object, FTAG, &db); 2095 2096 if (error == 0) { 2097 nvsize = *(uint64_t *)db->db_data; 2098 dmu_buf_rele(db, FTAG); 2099 2100 (void) printf("\nMOS Configuration:\n"); 2101 dump_packed_nvlist(spa->spa_meta_objset, 2102 spa->spa_config_object, (void *)&nvsize, 1); 2103 } else { 2104 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 2105 (u_longlong_t)spa->spa_config_object, error); 2106 } 2107 } 2108 2109 static void 2110 dump_cachefile(const char *cachefile) 2111 { 2112 int fd; 2113 struct stat64 statbuf; 2114 char *buf; 2115 nvlist_t *config; 2116 2117 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 2118 (void) printf("cannot open '%s': %s\n", cachefile, 2119 strerror(errno)); 2120 exit(1); 2121 } 2122 2123 if (fstat64(fd, &statbuf) != 0) { 2124 (void) printf("failed to stat '%s': %s\n", cachefile, 2125 strerror(errno)); 2126 exit(1); 2127 } 2128 2129 if ((buf = malloc(statbuf.st_size)) == NULL) { 2130 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 2131 (u_longlong_t)statbuf.st_size); 2132 exit(1); 2133 } 2134 2135 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 2136 (void) fprintf(stderr, "failed to read %llu bytes\n", 2137 (u_longlong_t)statbuf.st_size); 2138 exit(1); 2139 } 2140 2141 (void) close(fd); 2142 2143 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 2144 (void) fprintf(stderr, "failed to unpack nvlist\n"); 2145 exit(1); 2146 } 2147 2148 free(buf); 2149 2150 dump_nvlist(config, 0); 2151 2152 nvlist_free(config); 2153 } 2154 2155 #define ZDB_MAX_UB_HEADER_SIZE 32 2156 2157 static void 2158 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) 2159 { 2160 vdev_t vd; 2161 vdev_t *vdp = &vd; 2162 char header[ZDB_MAX_UB_HEADER_SIZE]; 2163 2164 vd.vdev_ashift = ashift; 2165 vdp->vdev_top = vdp; 2166 2167 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { 2168 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); 2169 uberblock_t *ub = (void *)((char *)lbl + uoff); 2170 2171 if (uberblock_verify(ub)) 2172 continue; 2173 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 2174 "Uberblock[%d]\n", i); 2175 dump_uberblock(ub, header, ""); 2176 } 2177 } 2178 2179 static char curpath[PATH_MAX]; 2180 2181 /* 2182 * Iterate through the path components, recursively passing 2183 * current one's obj and remaining path until we find the obj 2184 * for the last one. 2185 */ 2186 static int 2187 dump_path_impl(objset_t *os, uint64_t obj, char *name) 2188 { 2189 int err; 2190 int header = 1; 2191 uint64_t child_obj; 2192 char *s; 2193 dmu_buf_t *db; 2194 dmu_object_info_t doi; 2195 2196 if ((s = strchr(name, '/')) != NULL) 2197 *s = '\0'; 2198 err = zap_lookup(os, obj, name, 8, 1, &child_obj); 2199 2200 (void) strlcat(curpath, name, sizeof (curpath)); 2201 2202 if (err != 0) { 2203 (void) fprintf(stderr, "failed to lookup %s: %s\n", 2204 curpath, strerror(err)); 2205 return (err); 2206 } 2207 2208 child_obj = ZFS_DIRENT_OBJ(child_obj); 2209 err = sa_buf_hold(os, child_obj, FTAG, &db); 2210 if (err != 0) { 2211 (void) fprintf(stderr, 2212 "failed to get SA dbuf for obj %llu: %s\n", 2213 (u_longlong_t)child_obj, strerror(err)); 2214 return (EINVAL); 2215 } 2216 dmu_object_info_from_db(db, &doi); 2217 sa_buf_rele(db, FTAG); 2218 2219 if (doi.doi_bonus_type != DMU_OT_SA && 2220 doi.doi_bonus_type != DMU_OT_ZNODE) { 2221 (void) fprintf(stderr, "invalid bonus type %d for obj %llu\n", 2222 doi.doi_bonus_type, (u_longlong_t)child_obj); 2223 return (EINVAL); 2224 } 2225 2226 if (dump_opt['v'] > 6) { 2227 (void) printf("obj=%llu %s type=%d bonustype=%d\n", 2228 (u_longlong_t)child_obj, curpath, doi.doi_type, 2229 doi.doi_bonus_type); 2230 } 2231 2232 (void) strlcat(curpath, "/", sizeof (curpath)); 2233 2234 switch (doi.doi_type) { 2235 case DMU_OT_DIRECTORY_CONTENTS: 2236 if (s != NULL && *(s + 1) != '\0') 2237 return (dump_path_impl(os, child_obj, s + 1)); 2238 /*FALLTHROUGH*/ 2239 case DMU_OT_PLAIN_FILE_CONTENTS: 2240 dump_object(os, child_obj, dump_opt['v'], &header); 2241 return (0); 2242 default: 2243 (void) fprintf(stderr, "object %llu has non-file/directory " 2244 "type %d\n", (u_longlong_t)obj, doi.doi_type); 2245 break; 2246 } 2247 2248 return (EINVAL); 2249 } 2250 2251 /* 2252 * Dump the blocks for the object specified by path inside the dataset. 2253 */ 2254 static int 2255 dump_path(char *ds, char *path) 2256 { 2257 int err; 2258 objset_t *os; 2259 uint64_t root_obj; 2260 2261 err = open_objset(ds, DMU_OST_ZFS, FTAG, &os); 2262 if (err != 0) 2263 return (err); 2264 2265 err = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1, &root_obj); 2266 if (err != 0) { 2267 (void) fprintf(stderr, "can't lookup root znode: %s\n", 2268 strerror(err)); 2269 dmu_objset_disown(os, FTAG); 2270 return (EINVAL); 2271 } 2272 2273 (void) snprintf(curpath, sizeof (curpath), "dataset=%s path=/", ds); 2274 2275 err = dump_path_impl(os, root_obj, path); 2276 2277 close_objset(os, FTAG); 2278 return (err); 2279 } 2280 2281 static int 2282 dump_label(const char *dev) 2283 { 2284 int fd; 2285 vdev_label_t label; 2286 char path[MAXPATHLEN]; 2287 char *buf = label.vl_vdev_phys.vp_nvlist; 2288 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 2289 struct stat64 statbuf; 2290 uint64_t psize, ashift; 2291 boolean_t label_found = B_FALSE; 2292 2293 (void) strlcpy(path, dev, sizeof (path)); 2294 if (dev[0] == '/') { 2295 if (strncmp(dev, ZFS_DISK_ROOTD, 2296 strlen(ZFS_DISK_ROOTD)) == 0) { 2297 (void) snprintf(path, sizeof (path), "%s%s", 2298 ZFS_RDISK_ROOTD, dev + strlen(ZFS_DISK_ROOTD)); 2299 } 2300 } else if (stat64(path, &statbuf) != 0) { 2301 char *s; 2302 2303 (void) snprintf(path, sizeof (path), "%s%s", ZFS_RDISK_ROOTD, 2304 dev); 2305 if ((s = strrchr(dev, 's')) == NULL || !isdigit(*(s + 1))) 2306 (void) strlcat(path, "s0", sizeof (path)); 2307 } 2308 2309 if (stat64(path, &statbuf) != 0) { 2310 (void) printf("failed to stat '%s': %s\n", path, 2311 strerror(errno)); 2312 exit(1); 2313 } 2314 2315 if (S_ISBLK(statbuf.st_mode)) { 2316 (void) printf("cannot use '%s': character device required\n", 2317 path); 2318 exit(1); 2319 } 2320 2321 if ((fd = open64(path, O_RDONLY)) < 0) { 2322 (void) printf("cannot open '%s': %s\n", path, strerror(errno)); 2323 exit(1); 2324 } 2325 2326 psize = statbuf.st_size; 2327 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 2328 2329 for (int l = 0; l < VDEV_LABELS; l++) { 2330 nvlist_t *config = NULL; 2331 2332 if (!dump_opt['q']) { 2333 (void) printf("------------------------------------\n"); 2334 (void) printf("LABEL %d\n", l); 2335 (void) printf("------------------------------------\n"); 2336 } 2337 2338 if (pread64(fd, &label, sizeof (label), 2339 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 2340 if (!dump_opt['q']) 2341 (void) printf("failed to read label %d\n", l); 2342 continue; 2343 } 2344 2345 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 2346 if (!dump_opt['q']) 2347 (void) printf("failed to unpack label %d\n", l); 2348 ashift = SPA_MINBLOCKSHIFT; 2349 } else { 2350 nvlist_t *vdev_tree = NULL; 2351 2352 if (!dump_opt['q']) 2353 dump_nvlist(config, 4); 2354 if ((nvlist_lookup_nvlist(config, 2355 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 2356 (nvlist_lookup_uint64(vdev_tree, 2357 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 2358 ashift = SPA_MINBLOCKSHIFT; 2359 nvlist_free(config); 2360 label_found = B_TRUE; 2361 } 2362 if (dump_opt['u']) 2363 dump_label_uberblocks(&label, ashift); 2364 } 2365 2366 (void) close(fd); 2367 2368 return (label_found ? 0 : 2); 2369 } 2370 2371 static uint64_t dataset_feature_count[SPA_FEATURES]; 2372 2373 /*ARGSUSED*/ 2374 static int 2375 dump_one_dir(const char *dsname, void *arg) 2376 { 2377 int error; 2378 objset_t *os; 2379 2380 error = open_objset(dsname, DMU_OST_ANY, FTAG, &os); 2381 if (error != 0) 2382 return (0); 2383 2384 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) { 2385 if (!dmu_objset_ds(os)->ds_feature_inuse[f]) 2386 continue; 2387 ASSERT(spa_feature_table[f].fi_flags & 2388 ZFEATURE_FLAG_PER_DATASET); 2389 dataset_feature_count[f]++; 2390 } 2391 2392 dump_dir(os); 2393 close_objset(os, FTAG); 2394 fuid_table_destroy(); 2395 return (0); 2396 } 2397 2398 /* 2399 * Block statistics. 2400 */ 2401 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2) 2402 typedef struct zdb_blkstats { 2403 uint64_t zb_asize; 2404 uint64_t zb_lsize; 2405 uint64_t zb_psize; 2406 uint64_t zb_count; 2407 uint64_t zb_gangs; 2408 uint64_t zb_ditto_samevdev; 2409 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 2410 } zdb_blkstats_t; 2411 2412 /* 2413 * Extended object types to report deferred frees and dedup auto-ditto blocks. 2414 */ 2415 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 2416 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 2417 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 2418 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 2419 2420 static char *zdb_ot_extname[] = { 2421 "deferred free", 2422 "dedup ditto", 2423 "other", 2424 "Total", 2425 }; 2426 2427 #define ZB_TOTAL DN_MAX_LEVELS 2428 2429 typedef struct zdb_cb { 2430 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 2431 uint64_t zcb_dedup_asize; 2432 uint64_t zcb_dedup_blocks; 2433 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES]; 2434 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES] 2435 [BPE_PAYLOAD_SIZE]; 2436 uint64_t zcb_start; 2437 uint64_t zcb_lastprint; 2438 uint64_t zcb_totalasize; 2439 uint64_t zcb_errors[256]; 2440 int zcb_readfails; 2441 int zcb_haderrors; 2442 spa_t *zcb_spa; 2443 } zdb_cb_t; 2444 2445 static void 2446 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 2447 dmu_object_type_t type) 2448 { 2449 uint64_t refcnt = 0; 2450 2451 ASSERT(type < ZDB_OT_TOTAL); 2452 2453 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 2454 return; 2455 2456 for (int i = 0; i < 4; i++) { 2457 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 2458 int t = (i & 1) ? type : ZDB_OT_TOTAL; 2459 int equal; 2460 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 2461 2462 zb->zb_asize += BP_GET_ASIZE(bp); 2463 zb->zb_lsize += BP_GET_LSIZE(bp); 2464 zb->zb_psize += BP_GET_PSIZE(bp); 2465 zb->zb_count++; 2466 2467 /* 2468 * The histogram is only big enough to record blocks up to 2469 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last, 2470 * "other", bucket. 2471 */ 2472 int idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT; 2473 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1); 2474 zb->zb_psize_histogram[idx]++; 2475 2476 zb->zb_gangs += BP_COUNT_GANG(bp); 2477 2478 switch (BP_GET_NDVAS(bp)) { 2479 case 2: 2480 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 2481 DVA_GET_VDEV(&bp->blk_dva[1])) 2482 zb->zb_ditto_samevdev++; 2483 break; 2484 case 3: 2485 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == 2486 DVA_GET_VDEV(&bp->blk_dva[1])) + 2487 (DVA_GET_VDEV(&bp->blk_dva[0]) == 2488 DVA_GET_VDEV(&bp->blk_dva[2])) + 2489 (DVA_GET_VDEV(&bp->blk_dva[1]) == 2490 DVA_GET_VDEV(&bp->blk_dva[2])); 2491 if (equal != 0) 2492 zb->zb_ditto_samevdev++; 2493 break; 2494 } 2495 2496 } 2497 2498 if (BP_IS_EMBEDDED(bp)) { 2499 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++; 2500 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)] 2501 [BPE_GET_PSIZE(bp)]++; 2502 return; 2503 } 2504 2505 if (dump_opt['L']) 2506 return; 2507 2508 if (BP_GET_DEDUP(bp)) { 2509 ddt_t *ddt; 2510 ddt_entry_t *dde; 2511 2512 ddt = ddt_select(zcb->zcb_spa, bp); 2513 ddt_enter(ddt); 2514 dde = ddt_lookup(ddt, bp, B_FALSE); 2515 2516 if (dde == NULL) { 2517 refcnt = 0; 2518 } else { 2519 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 2520 ddt_phys_decref(ddp); 2521 refcnt = ddp->ddp_refcnt; 2522 if (ddt_phys_total_refcnt(dde) == 0) 2523 ddt_remove(ddt, dde); 2524 } 2525 ddt_exit(ddt); 2526 } 2527 2528 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 2529 refcnt ? 0 : spa_first_txg(zcb->zcb_spa), 2530 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 2531 } 2532 2533 static void 2534 zdb_blkptr_done(zio_t *zio) 2535 { 2536 spa_t *spa = zio->io_spa; 2537 blkptr_t *bp = zio->io_bp; 2538 int ioerr = zio->io_error; 2539 zdb_cb_t *zcb = zio->io_private; 2540 zbookmark_phys_t *zb = &zio->io_bookmark; 2541 2542 zio_data_buf_free(zio->io_data, zio->io_size); 2543 2544 mutex_enter(&spa->spa_scrub_lock); 2545 spa->spa_scrub_inflight--; 2546 cv_broadcast(&spa->spa_scrub_io_cv); 2547 2548 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 2549 char blkbuf[BP_SPRINTF_LEN]; 2550 2551 zcb->zcb_haderrors = 1; 2552 zcb->zcb_errors[ioerr]++; 2553 2554 if (dump_opt['b'] >= 2) 2555 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2556 else 2557 blkbuf[0] = '\0'; 2558 2559 (void) printf("zdb_blkptr_cb: " 2560 "Got error %d reading " 2561 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 2562 ioerr, 2563 (u_longlong_t)zb->zb_objset, 2564 (u_longlong_t)zb->zb_object, 2565 (u_longlong_t)zb->zb_level, 2566 (u_longlong_t)zb->zb_blkid, 2567 blkbuf); 2568 } 2569 mutex_exit(&spa->spa_scrub_lock); 2570 } 2571 2572 static int 2573 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2574 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 2575 { 2576 zdb_cb_t *zcb = arg; 2577 dmu_object_type_t type; 2578 boolean_t is_metadata; 2579 2580 if (bp == NULL) 2581 return (0); 2582 2583 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) { 2584 char blkbuf[BP_SPRINTF_LEN]; 2585 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2586 (void) printf("objset %llu object %llu " 2587 "level %lld offset 0x%llx %s\n", 2588 (u_longlong_t)zb->zb_objset, 2589 (u_longlong_t)zb->zb_object, 2590 (longlong_t)zb->zb_level, 2591 (u_longlong_t)blkid2offset(dnp, bp, zb), 2592 blkbuf); 2593 } 2594 2595 if (BP_IS_HOLE(bp)) 2596 return (0); 2597 2598 type = BP_GET_TYPE(bp); 2599 2600 zdb_count_block(zcb, zilog, bp, 2601 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 2602 2603 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 2604 2605 if (!BP_IS_EMBEDDED(bp) && 2606 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) { 2607 size_t size = BP_GET_PSIZE(bp); 2608 void *data = zio_data_buf_alloc(size); 2609 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 2610 2611 /* If it's an intent log block, failure is expected. */ 2612 if (zb->zb_level == ZB_ZIL_LEVEL) 2613 flags |= ZIO_FLAG_SPECULATIVE; 2614 2615 mutex_enter(&spa->spa_scrub_lock); 2616 while (spa->spa_scrub_inflight > max_inflight) 2617 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 2618 spa->spa_scrub_inflight++; 2619 mutex_exit(&spa->spa_scrub_lock); 2620 2621 zio_nowait(zio_read(NULL, spa, bp, data, size, 2622 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 2623 } 2624 2625 zcb->zcb_readfails = 0; 2626 2627 /* only call gethrtime() every 100 blocks */ 2628 static int iters; 2629 if (++iters > 100) 2630 iters = 0; 2631 else 2632 return (0); 2633 2634 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) { 2635 uint64_t now = gethrtime(); 2636 char buf[10]; 2637 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 2638 int kb_per_sec = 2639 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 2640 int sec_remaining = 2641 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 2642 2643 zfs_nicenum(bytes, buf, sizeof (buf)); 2644 (void) fprintf(stderr, 2645 "\r%5s completed (%4dMB/s) " 2646 "estimated time remaining: %uhr %02umin %02usec ", 2647 buf, kb_per_sec / 1024, 2648 sec_remaining / 60 / 60, 2649 sec_remaining / 60 % 60, 2650 sec_remaining % 60); 2651 2652 zcb->zcb_lastprint = now; 2653 } 2654 2655 return (0); 2656 } 2657 2658 static void 2659 zdb_leak(void *arg, uint64_t start, uint64_t size) 2660 { 2661 vdev_t *vd = arg; 2662 2663 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 2664 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 2665 } 2666 2667 static metaslab_ops_t zdb_metaslab_ops = { 2668 NULL /* alloc */ 2669 }; 2670 2671 static void 2672 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 2673 { 2674 ddt_bookmark_t ddb = { 0 }; 2675 ddt_entry_t dde; 2676 int error; 2677 2678 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 2679 blkptr_t blk; 2680 ddt_phys_t *ddp = dde.dde_phys; 2681 2682 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 2683 return; 2684 2685 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 2686 2687 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 2688 if (ddp->ddp_phys_birth == 0) 2689 continue; 2690 ddt_bp_create(ddb.ddb_checksum, 2691 &dde.dde_key, ddp, &blk); 2692 if (p == DDT_PHYS_DITTO) { 2693 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 2694 } else { 2695 zcb->zcb_dedup_asize += 2696 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 2697 zcb->zcb_dedup_blocks++; 2698 } 2699 } 2700 if (!dump_opt['L']) { 2701 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 2702 ddt_enter(ddt); 2703 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 2704 ddt_exit(ddt); 2705 } 2706 } 2707 2708 ASSERT(error == ENOENT); 2709 } 2710 2711 static void 2712 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 2713 { 2714 zcb->zcb_spa = spa; 2715 2716 if (!dump_opt['L']) { 2717 vdev_t *rvd = spa->spa_root_vdev; 2718 2719 /* 2720 * We are going to be changing the meaning of the metaslab's 2721 * ms_tree. Ensure that the allocator doesn't try to 2722 * use the tree. 2723 */ 2724 spa->spa_normal_class->mc_ops = &zdb_metaslab_ops; 2725 spa->spa_log_class->mc_ops = &zdb_metaslab_ops; 2726 2727 for (uint64_t c = 0; c < rvd->vdev_children; c++) { 2728 vdev_t *vd = rvd->vdev_child[c]; 2729 metaslab_group_t *mg = vd->vdev_mg; 2730 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 2731 metaslab_t *msp = vd->vdev_ms[m]; 2732 ASSERT3P(msp->ms_group, ==, mg); 2733 mutex_enter(&msp->ms_lock); 2734 metaslab_unload(msp); 2735 2736 /* 2737 * For leak detection, we overload the metaslab 2738 * ms_tree to contain allocated segments 2739 * instead of free segments. As a result, 2740 * we can't use the normal metaslab_load/unload 2741 * interfaces. 2742 */ 2743 if (msp->ms_sm != NULL) { 2744 (void) fprintf(stderr, 2745 "\rloading space map for " 2746 "vdev %llu of %llu, " 2747 "metaslab %llu of %llu ...", 2748 (longlong_t)c, 2749 (longlong_t)rvd->vdev_children, 2750 (longlong_t)m, 2751 (longlong_t)vd->vdev_ms_count); 2752 2753 /* 2754 * We don't want to spend the CPU 2755 * manipulating the size-ordered 2756 * tree, so clear the range_tree 2757 * ops. 2758 */ 2759 msp->ms_tree->rt_ops = NULL; 2760 VERIFY0(space_map_load(msp->ms_sm, 2761 msp->ms_tree, SM_ALLOC)); 2762 2763 if (!msp->ms_loaded) { 2764 msp->ms_loaded = B_TRUE; 2765 } 2766 } 2767 mutex_exit(&msp->ms_lock); 2768 } 2769 } 2770 (void) fprintf(stderr, "\n"); 2771 } 2772 2773 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2774 2775 zdb_ddt_leak_init(spa, zcb); 2776 2777 spa_config_exit(spa, SCL_CONFIG, FTAG); 2778 } 2779 2780 static void 2781 zdb_leak_fini(spa_t *spa) 2782 { 2783 if (!dump_opt['L']) { 2784 vdev_t *rvd = spa->spa_root_vdev; 2785 for (int c = 0; c < rvd->vdev_children; c++) { 2786 vdev_t *vd = rvd->vdev_child[c]; 2787 metaslab_group_t *mg = vd->vdev_mg; 2788 for (int m = 0; m < vd->vdev_ms_count; m++) { 2789 metaslab_t *msp = vd->vdev_ms[m]; 2790 ASSERT3P(mg, ==, msp->ms_group); 2791 mutex_enter(&msp->ms_lock); 2792 2793 /* 2794 * The ms_tree has been overloaded to 2795 * contain allocated segments. Now that we 2796 * finished traversing all blocks, any 2797 * block that remains in the ms_tree 2798 * represents an allocated block that we 2799 * did not claim during the traversal. 2800 * Claimed blocks would have been removed 2801 * from the ms_tree. 2802 */ 2803 range_tree_vacate(msp->ms_tree, zdb_leak, vd); 2804 2805 if (msp->ms_loaded) { 2806 msp->ms_loaded = B_FALSE; 2807 } 2808 2809 mutex_exit(&msp->ms_lock); 2810 } 2811 } 2812 } 2813 } 2814 2815 /* ARGSUSED */ 2816 static int 2817 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 2818 { 2819 zdb_cb_t *zcb = arg; 2820 2821 if (dump_opt['b'] >= 5) { 2822 char blkbuf[BP_SPRINTF_LEN]; 2823 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2824 (void) printf("[%s] %s\n", 2825 "deferred free", blkbuf); 2826 } 2827 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 2828 return (0); 2829 } 2830 2831 static int 2832 dump_block_stats(spa_t *spa) 2833 { 2834 zdb_cb_t zcb = { 0 }; 2835 zdb_blkstats_t *zb, *tzb; 2836 uint64_t norm_alloc, norm_space, total_alloc, total_found; 2837 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; 2838 boolean_t leaks = B_FALSE; 2839 2840 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 2841 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 2842 (dump_opt['c'] == 1) ? "metadata " : "", 2843 dump_opt['c'] ? "checksums " : "", 2844 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 2845 !dump_opt['L'] ? "nothing leaked " : ""); 2846 2847 /* 2848 * Load all space maps as SM_ALLOC maps, then traverse the pool 2849 * claiming each block we discover. If the pool is perfectly 2850 * consistent, the space maps will be empty when we're done. 2851 * Anything left over is a leak; any block we can't claim (because 2852 * it's not part of any space map) is a double allocation, 2853 * reference to a freed block, or an unclaimed log block. 2854 */ 2855 zdb_leak_init(spa, &zcb); 2856 2857 /* 2858 * If there's a deferred-free bplist, process that first. 2859 */ 2860 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 2861 count_block_cb, &zcb, NULL); 2862 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2863 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 2864 count_block_cb, &zcb, NULL); 2865 } 2866 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 2867 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 2868 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 2869 &zcb, NULL)); 2870 } 2871 2872 if (dump_opt['c'] > 1) 2873 flags |= TRAVERSE_PREFETCH_DATA; 2874 2875 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 2876 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 2877 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 2878 2879 /* 2880 * If we've traversed the data blocks then we need to wait for those 2881 * I/Os to complete. We leverage "The Godfather" zio to wait on 2882 * all async I/Os to complete. 2883 */ 2884 if (dump_opt['c']) { 2885 for (int i = 0; i < max_ncpus; i++) { 2886 (void) zio_wait(spa->spa_async_zio_root[i]); 2887 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL, 2888 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 2889 ZIO_FLAG_GODFATHER); 2890 } 2891 } 2892 2893 if (zcb.zcb_haderrors) { 2894 (void) printf("\nError counts:\n\n"); 2895 (void) printf("\t%5s %s\n", "errno", "count"); 2896 for (int e = 0; e < 256; e++) { 2897 if (zcb.zcb_errors[e] != 0) { 2898 (void) printf("\t%5d %llu\n", 2899 e, (u_longlong_t)zcb.zcb_errors[e]); 2900 } 2901 } 2902 } 2903 2904 /* 2905 * Report any leaked segments. 2906 */ 2907 zdb_leak_fini(spa); 2908 2909 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 2910 2911 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 2912 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 2913 2914 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); 2915 total_found = tzb->zb_asize - zcb.zcb_dedup_asize; 2916 2917 if (total_found == total_alloc) { 2918 if (!dump_opt['L']) 2919 (void) printf("\n\tNo leaks (block sum matches space" 2920 " maps exactly)\n"); 2921 } else { 2922 (void) printf("block traversal size %llu != alloc %llu " 2923 "(%s %lld)\n", 2924 (u_longlong_t)total_found, 2925 (u_longlong_t)total_alloc, 2926 (dump_opt['L']) ? "unreachable" : "leaked", 2927 (longlong_t)(total_alloc - total_found)); 2928 leaks = B_TRUE; 2929 } 2930 2931 if (tzb->zb_count == 0) 2932 return (2); 2933 2934 (void) printf("\n"); 2935 (void) printf("\tbp count: %10llu\n", 2936 (u_longlong_t)tzb->zb_count); 2937 (void) printf("\tganged count: %10llu\n", 2938 (longlong_t)tzb->zb_gangs); 2939 (void) printf("\tbp logical: %10llu avg: %6llu\n", 2940 (u_longlong_t)tzb->zb_lsize, 2941 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 2942 (void) printf("\tbp physical: %10llu avg:" 2943 " %6llu compression: %6.2f\n", 2944 (u_longlong_t)tzb->zb_psize, 2945 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 2946 (double)tzb->zb_lsize / tzb->zb_psize); 2947 (void) printf("\tbp allocated: %10llu avg:" 2948 " %6llu compression: %6.2f\n", 2949 (u_longlong_t)tzb->zb_asize, 2950 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 2951 (double)tzb->zb_lsize / tzb->zb_asize); 2952 (void) printf("\tbp deduped: %10llu ref>1:" 2953 " %6llu deduplication: %6.2f\n", 2954 (u_longlong_t)zcb.zcb_dedup_asize, 2955 (u_longlong_t)zcb.zcb_dedup_blocks, 2956 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 2957 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", 2958 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 2959 2960 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) { 2961 if (zcb.zcb_embedded_blocks[i] == 0) 2962 continue; 2963 (void) printf("\n"); 2964 (void) printf("\tadditional, non-pointer bps of type %u: " 2965 "%10llu\n", 2966 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]); 2967 2968 if (dump_opt['b'] >= 3) { 2969 (void) printf("\t number of (compressed) bytes: " 2970 "number of bps\n"); 2971 dump_histogram(zcb.zcb_embedded_histogram[i], 2972 sizeof (zcb.zcb_embedded_histogram[i]) / 2973 sizeof (zcb.zcb_embedded_histogram[i][0]), 0); 2974 } 2975 } 2976 2977 if (tzb->zb_ditto_samevdev != 0) { 2978 (void) printf("\tDittoed blocks on same vdev: %llu\n", 2979 (longlong_t)tzb->zb_ditto_samevdev); 2980 } 2981 2982 if (dump_opt['b'] >= 2) { 2983 int l, t, level; 2984 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 2985 "\t avg\t comp\t%%Total\tType\n"); 2986 2987 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 2988 char csize[32], lsize[32], psize[32], asize[32]; 2989 char avg[32], gang[32]; 2990 char *typename; 2991 2992 if (t < DMU_OT_NUMTYPES) 2993 typename = dmu_ot[t].ot_name; 2994 else 2995 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 2996 2997 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 2998 (void) printf("%6s\t%5s\t%5s\t%5s" 2999 "\t%5s\t%5s\t%6s\t%s\n", 3000 "-", 3001 "-", 3002 "-", 3003 "-", 3004 "-", 3005 "-", 3006 "-", 3007 typename); 3008 continue; 3009 } 3010 3011 for (l = ZB_TOTAL - 1; l >= -1; l--) { 3012 level = (l == -1 ? ZB_TOTAL : l); 3013 zb = &zcb.zcb_type[level][t]; 3014 3015 if (zb->zb_asize == 0) 3016 continue; 3017 3018 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 3019 continue; 3020 3021 if (level == 0 && zb->zb_asize == 3022 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 3023 continue; 3024 3025 zdb_nicenum(zb->zb_count, csize); 3026 zdb_nicenum(zb->zb_lsize, lsize); 3027 zdb_nicenum(zb->zb_psize, psize); 3028 zdb_nicenum(zb->zb_asize, asize); 3029 zdb_nicenum(zb->zb_asize / zb->zb_count, avg); 3030 zdb_nicenum(zb->zb_gangs, gang); 3031 3032 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 3033 "\t%5.2f\t%6.2f\t", 3034 csize, lsize, psize, asize, avg, 3035 (double)zb->zb_lsize / zb->zb_psize, 3036 100.0 * zb->zb_asize / tzb->zb_asize); 3037 3038 if (level == ZB_TOTAL) 3039 (void) printf("%s\n", typename); 3040 else 3041 (void) printf(" L%d %s\n", 3042 level, typename); 3043 3044 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { 3045 (void) printf("\t number of ganged " 3046 "blocks: %s\n", gang); 3047 } 3048 3049 if (dump_opt['b'] >= 4) { 3050 (void) printf("psize " 3051 "(in 512-byte sectors): " 3052 "number of blocks\n"); 3053 dump_histogram(zb->zb_psize_histogram, 3054 PSIZE_HISTO_SIZE, 0); 3055 } 3056 } 3057 } 3058 } 3059 3060 (void) printf("\n"); 3061 3062 if (leaks) 3063 return (2); 3064 3065 if (zcb.zcb_haderrors) 3066 return (3); 3067 3068 return (0); 3069 } 3070 3071 typedef struct zdb_ddt_entry { 3072 ddt_key_t zdde_key; 3073 uint64_t zdde_ref_blocks; 3074 uint64_t zdde_ref_lsize; 3075 uint64_t zdde_ref_psize; 3076 uint64_t zdde_ref_dsize; 3077 avl_node_t zdde_node; 3078 } zdb_ddt_entry_t; 3079 3080 /* ARGSUSED */ 3081 static int 3082 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 3083 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 3084 { 3085 avl_tree_t *t = arg; 3086 avl_index_t where; 3087 zdb_ddt_entry_t *zdde, zdde_search; 3088 3089 if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp)) 3090 return (0); 3091 3092 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 3093 (void) printf("traversing objset %llu, %llu objects, " 3094 "%lu blocks so far\n", 3095 (u_longlong_t)zb->zb_objset, 3096 (u_longlong_t)BP_GET_FILL(bp), 3097 avl_numnodes(t)); 3098 } 3099 3100 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 3101 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 3102 return (0); 3103 3104 ddt_key_fill(&zdde_search.zdde_key, bp); 3105 3106 zdde = avl_find(t, &zdde_search, &where); 3107 3108 if (zdde == NULL) { 3109 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 3110 zdde->zdde_key = zdde_search.zdde_key; 3111 avl_insert(t, zdde, where); 3112 } 3113 3114 zdde->zdde_ref_blocks += 1; 3115 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 3116 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 3117 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 3118 3119 return (0); 3120 } 3121 3122 static void 3123 dump_simulated_ddt(spa_t *spa) 3124 { 3125 avl_tree_t t; 3126 void *cookie = NULL; 3127 zdb_ddt_entry_t *zdde; 3128 ddt_histogram_t ddh_total = { 0 }; 3129 ddt_stat_t dds_total = { 0 }; 3130 3131 avl_create(&t, ddt_entry_compare, 3132 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 3133 3134 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 3135 3136 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, 3137 zdb_ddt_add_cb, &t); 3138 3139 spa_config_exit(spa, SCL_CONFIG, FTAG); 3140 3141 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 3142 ddt_stat_t dds; 3143 uint64_t refcnt = zdde->zdde_ref_blocks; 3144 ASSERT(refcnt != 0); 3145 3146 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 3147 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 3148 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 3149 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 3150 3151 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 3152 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 3153 dds.dds_ref_psize = zdde->zdde_ref_psize; 3154 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 3155 3156 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1], 3157 &dds, 0); 3158 3159 umem_free(zdde, sizeof (*zdde)); 3160 } 3161 3162 avl_destroy(&t); 3163 3164 ddt_histogram_stat(&dds_total, &ddh_total); 3165 3166 (void) printf("Simulated DDT histogram:\n"); 3167 3168 zpool_dump_ddt(&dds_total, &ddh_total); 3169 3170 dump_dedup_ratio(&dds_total); 3171 } 3172 3173 static void 3174 dump_zpool(spa_t *spa) 3175 { 3176 dsl_pool_t *dp = spa_get_dsl(spa); 3177 int rc = 0; 3178 3179 if (dump_opt['S']) { 3180 dump_simulated_ddt(spa); 3181 return; 3182 } 3183 3184 if (!dump_opt['e'] && dump_opt['C'] > 1) { 3185 (void) printf("\nCached configuration:\n"); 3186 dump_nvlist(spa->spa_config, 8); 3187 } 3188 3189 if (dump_opt['C']) 3190 dump_config(spa); 3191 3192 if (dump_opt['u']) 3193 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 3194 3195 if (dump_opt['D']) 3196 dump_all_ddts(spa); 3197 3198 if (dump_opt['d'] > 2 || dump_opt['m']) 3199 dump_metaslabs(spa); 3200 if (dump_opt['M']) 3201 dump_metaslab_groups(spa); 3202 3203 if (dump_opt['d'] || dump_opt['i']) { 3204 dump_dir(dp->dp_meta_objset); 3205 if (dump_opt['d'] >= 3) { 3206 dump_full_bpobj(&spa->spa_deferred_bpobj, 3207 "Deferred frees", 0); 3208 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 3209 dump_full_bpobj( 3210 &spa->spa_dsl_pool->dp_free_bpobj, 3211 "Pool snapshot frees", 0); 3212 } 3213 3214 if (spa_feature_is_active(spa, 3215 SPA_FEATURE_ASYNC_DESTROY)) { 3216 dump_bptree(spa->spa_meta_objset, 3217 spa->spa_dsl_pool->dp_bptree_obj, 3218 "Pool dataset frees"); 3219 } 3220 dump_dtl(spa->spa_root_vdev, 0); 3221 } 3222 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 3223 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 3224 3225 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) { 3226 uint64_t refcount; 3227 3228 if (!(spa_feature_table[f].fi_flags & 3229 ZFEATURE_FLAG_PER_DATASET) || 3230 !spa_feature_is_enabled(spa, f)) { 3231 ASSERT0(dataset_feature_count[f]); 3232 continue; 3233 } 3234 (void) feature_get_refcount(spa, 3235 &spa_feature_table[f], &refcount); 3236 if (dataset_feature_count[f] != refcount) { 3237 (void) printf("%s feature refcount mismatch: " 3238 "%lld datasets != %lld refcount\n", 3239 spa_feature_table[f].fi_uname, 3240 (longlong_t)dataset_feature_count[f], 3241 (longlong_t)refcount); 3242 rc = 2; 3243 } else { 3244 (void) printf("Verified %s feature refcount " 3245 "of %llu is correct\n", 3246 spa_feature_table[f].fi_uname, 3247 (longlong_t)refcount); 3248 } 3249 } 3250 } 3251 if (rc == 0 && (dump_opt['b'] || dump_opt['c'])) 3252 rc = dump_block_stats(spa); 3253 3254 if (rc == 0) 3255 rc = verify_spacemap_refcounts(spa); 3256 3257 if (dump_opt['s']) 3258 show_pool_stats(spa); 3259 3260 if (dump_opt['h']) 3261 dump_history(spa); 3262 3263 if (rc != 0) { 3264 dump_debug_buffer(); 3265 exit(rc); 3266 } 3267 } 3268 3269 #define ZDB_FLAG_CHECKSUM 0x0001 3270 #define ZDB_FLAG_DECOMPRESS 0x0002 3271 #define ZDB_FLAG_BSWAP 0x0004 3272 #define ZDB_FLAG_GBH 0x0008 3273 #define ZDB_FLAG_INDIRECT 0x0010 3274 #define ZDB_FLAG_PHYS 0x0020 3275 #define ZDB_FLAG_RAW 0x0040 3276 #define ZDB_FLAG_PRINT_BLKPTR 0x0080 3277 3278 int flagbits[256]; 3279 3280 static void 3281 zdb_print_blkptr(blkptr_t *bp, int flags) 3282 { 3283 char blkbuf[BP_SPRINTF_LEN]; 3284 3285 if (flags & ZDB_FLAG_BSWAP) 3286 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 3287 3288 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 3289 (void) printf("%s\n", blkbuf); 3290 } 3291 3292 static void 3293 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 3294 { 3295 int i; 3296 3297 for (i = 0; i < nbps; i++) 3298 zdb_print_blkptr(&bp[i], flags); 3299 } 3300 3301 static void 3302 zdb_dump_gbh(void *buf, int flags) 3303 { 3304 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 3305 } 3306 3307 static void 3308 zdb_dump_block_raw(void *buf, uint64_t size, int flags) 3309 { 3310 if (flags & ZDB_FLAG_BSWAP) 3311 byteswap_uint64_array(buf, size); 3312 (void) write(1, buf, size); 3313 } 3314 3315 static void 3316 zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 3317 { 3318 uint64_t *d = (uint64_t *)buf; 3319 int nwords = size / sizeof (uint64_t); 3320 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 3321 int i, j; 3322 char *hdr, *c; 3323 3324 3325 if (do_bswap) 3326 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 3327 else 3328 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 3329 3330 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 3331 3332 for (i = 0; i < nwords; i += 2) { 3333 (void) printf("%06llx: %016llx %016llx ", 3334 (u_longlong_t)(i * sizeof (uint64_t)), 3335 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 3336 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 3337 3338 c = (char *)&d[i]; 3339 for (j = 0; j < 2 * sizeof (uint64_t); j++) 3340 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 3341 (void) printf("\n"); 3342 } 3343 } 3344 3345 /* 3346 * There are two acceptable formats: 3347 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 3348 * child[.child]* - For example: 0.1.1 3349 * 3350 * The second form can be used to specify arbitrary vdevs anywhere 3351 * in the heirarchy. For example, in a pool with a mirror of 3352 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 3353 */ 3354 static vdev_t * 3355 zdb_vdev_lookup(vdev_t *vdev, char *path) 3356 { 3357 char *s, *p, *q; 3358 int i; 3359 3360 if (vdev == NULL) 3361 return (NULL); 3362 3363 /* First, assume the x.x.x.x format */ 3364 i = (int)strtoul(path, &s, 10); 3365 if (s == path || (s && *s != '.' && *s != '\0')) 3366 goto name; 3367 if (i < 0 || i >= vdev->vdev_children) 3368 return (NULL); 3369 3370 vdev = vdev->vdev_child[i]; 3371 if (*s == '\0') 3372 return (vdev); 3373 return (zdb_vdev_lookup(vdev, s+1)); 3374 3375 name: 3376 for (i = 0; i < vdev->vdev_children; i++) { 3377 vdev_t *vc = vdev->vdev_child[i]; 3378 3379 if (vc->vdev_path == NULL) { 3380 vc = zdb_vdev_lookup(vc, path); 3381 if (vc == NULL) 3382 continue; 3383 else 3384 return (vc); 3385 } 3386 3387 p = strrchr(vc->vdev_path, '/'); 3388 p = p ? p + 1 : vc->vdev_path; 3389 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 3390 3391 if (strcmp(vc->vdev_path, path) == 0) 3392 return (vc); 3393 if (strcmp(p, path) == 0) 3394 return (vc); 3395 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 3396 return (vc); 3397 } 3398 3399 return (NULL); 3400 } 3401 3402 /* 3403 * Read a block from a pool and print it out. The syntax of the 3404 * block descriptor is: 3405 * 3406 * pool:vdev_specifier:offset:size[:flags] 3407 * 3408 * pool - The name of the pool you wish to read from 3409 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 3410 * offset - offset, in hex, in bytes 3411 * size - Amount of data to read, in hex, in bytes 3412 * flags - A string of characters specifying options 3413 * b: Decode a blkptr at given offset within block 3414 * *c: Calculate and display checksums 3415 * d: Decompress data before dumping 3416 * e: Byteswap data before dumping 3417 * g: Display data as a gang block header 3418 * i: Display as an indirect block 3419 * p: Do I/O to physical offset 3420 * r: Dump raw data to stdout 3421 * 3422 * * = not yet implemented 3423 */ 3424 static void 3425 zdb_read_block(char *thing, spa_t *spa) 3426 { 3427 blkptr_t blk, *bp = &blk; 3428 dva_t *dva = bp->blk_dva; 3429 int flags = 0; 3430 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 3431 zio_t *zio; 3432 vdev_t *vd; 3433 void *pbuf, *lbuf, *buf; 3434 char *s, *p, *dup, *vdev, *flagstr; 3435 int i, error; 3436 3437 dup = strdup(thing); 3438 s = strtok(dup, ":"); 3439 vdev = s ? s : ""; 3440 s = strtok(NULL, ":"); 3441 offset = strtoull(s ? s : "", NULL, 16); 3442 s = strtok(NULL, ":"); 3443 size = strtoull(s ? s : "", NULL, 16); 3444 s = strtok(NULL, ":"); 3445 flagstr = s ? s : ""; 3446 3447 s = NULL; 3448 if (size == 0) 3449 s = "size must not be zero"; 3450 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 3451 s = "size must be a multiple of sector size"; 3452 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 3453 s = "offset must be a multiple of sector size"; 3454 if (s) { 3455 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 3456 free(dup); 3457 return; 3458 } 3459 3460 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 3461 for (i = 0; flagstr[i]; i++) { 3462 int bit = flagbits[(uchar_t)flagstr[i]]; 3463 3464 if (bit == 0) { 3465 (void) printf("***Invalid flag: %c\n", 3466 flagstr[i]); 3467 continue; 3468 } 3469 flags |= bit; 3470 3471 /* If it's not something with an argument, keep going */ 3472 if ((bit & (ZDB_FLAG_CHECKSUM | 3473 ZDB_FLAG_PRINT_BLKPTR)) == 0) 3474 continue; 3475 3476 p = &flagstr[i + 1]; 3477 if (bit == ZDB_FLAG_PRINT_BLKPTR) 3478 blkptr_offset = strtoull(p, &p, 16); 3479 if (*p != ':' && *p != '\0') { 3480 (void) printf("***Invalid flag arg: '%s'\n", s); 3481 free(dup); 3482 return; 3483 } 3484 } 3485 } 3486 3487 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 3488 if (vd == NULL) { 3489 (void) printf("***Invalid vdev: %s\n", vdev); 3490 free(dup); 3491 return; 3492 } else { 3493 if (vd->vdev_path) 3494 (void) fprintf(stderr, "Found vdev: %s\n", 3495 vd->vdev_path); 3496 else 3497 (void) fprintf(stderr, "Found vdev type: %s\n", 3498 vd->vdev_ops->vdev_op_type); 3499 } 3500 3501 psize = size; 3502 lsize = size; 3503 3504 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3505 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3506 3507 BP_ZERO(bp); 3508 3509 DVA_SET_VDEV(&dva[0], vd->vdev_id); 3510 DVA_SET_OFFSET(&dva[0], offset); 3511 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 3512 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 3513 3514 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 3515 3516 BP_SET_LSIZE(bp, lsize); 3517 BP_SET_PSIZE(bp, psize); 3518 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 3519 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 3520 BP_SET_TYPE(bp, DMU_OT_NONE); 3521 BP_SET_LEVEL(bp, 0); 3522 BP_SET_DEDUP(bp, 0); 3523 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 3524 3525 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 3526 zio = zio_root(spa, NULL, NULL, 0); 3527 3528 if (vd == vd->vdev_top) { 3529 /* 3530 * Treat this as a normal block read. 3531 */ 3532 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL, 3533 ZIO_PRIORITY_SYNC_READ, 3534 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 3535 } else { 3536 /* 3537 * Treat this as a vdev child I/O. 3538 */ 3539 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize, 3540 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 3541 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 3542 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 3543 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL)); 3544 } 3545 3546 error = zio_wait(zio); 3547 spa_config_exit(spa, SCL_STATE, FTAG); 3548 3549 if (error) { 3550 (void) printf("Read of %s failed, error: %d\n", thing, error); 3551 goto out; 3552 } 3553 3554 if (flags & ZDB_FLAG_DECOMPRESS) { 3555 /* 3556 * We don't know how the data was compressed, so just try 3557 * every decompress function at every inflated blocksize. 3558 */ 3559 enum zio_compress c; 3560 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3561 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3562 3563 bcopy(pbuf, pbuf2, psize); 3564 3565 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize, 3566 SPA_MAXBLOCKSIZE - psize) == 0); 3567 3568 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 3569 SPA_MAXBLOCKSIZE - psize) == 0); 3570 3571 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 3572 lsize -= SPA_MINBLOCKSIZE) { 3573 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 3574 if (zio_decompress_data(c, pbuf, lbuf, 3575 psize, lsize) == 0 && 3576 zio_decompress_data(c, pbuf2, lbuf2, 3577 psize, lsize) == 0 && 3578 bcmp(lbuf, lbuf2, lsize) == 0) 3579 break; 3580 } 3581 if (c != ZIO_COMPRESS_FUNCTIONS) 3582 break; 3583 lsize -= SPA_MINBLOCKSIZE; 3584 } 3585 3586 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 3587 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 3588 3589 if (lsize <= psize) { 3590 (void) printf("Decompress of %s failed\n", thing); 3591 goto out; 3592 } 3593 buf = lbuf; 3594 size = lsize; 3595 } else { 3596 buf = pbuf; 3597 size = psize; 3598 } 3599 3600 if (flags & ZDB_FLAG_PRINT_BLKPTR) 3601 zdb_print_blkptr((blkptr_t *)(void *) 3602 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 3603 else if (flags & ZDB_FLAG_RAW) 3604 zdb_dump_block_raw(buf, size, flags); 3605 else if (flags & ZDB_FLAG_INDIRECT) 3606 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 3607 flags); 3608 else if (flags & ZDB_FLAG_GBH) 3609 zdb_dump_gbh(buf, flags); 3610 else 3611 zdb_dump_block(thing, buf, size, flags); 3612 3613 out: 3614 umem_free(pbuf, SPA_MAXBLOCKSIZE); 3615 umem_free(lbuf, SPA_MAXBLOCKSIZE); 3616 free(dup); 3617 } 3618 3619 static boolean_t 3620 pool_match(nvlist_t *cfg, char *tgt) 3621 { 3622 uint64_t v, guid = strtoull(tgt, NULL, 0); 3623 char *s; 3624 3625 if (guid != 0) { 3626 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) 3627 return (v == guid); 3628 } else { 3629 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) 3630 return (strcmp(s, tgt) == 0); 3631 } 3632 return (B_FALSE); 3633 } 3634 3635 static char * 3636 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) 3637 { 3638 nvlist_t *pools; 3639 nvlist_t *match = NULL; 3640 char *name = NULL; 3641 char *sepp = NULL; 3642 char sep = '\0'; 3643 int count = 0; 3644 importargs_t args = { 0 }; 3645 3646 args.paths = dirc; 3647 args.path = dirv; 3648 args.can_be_active = B_TRUE; 3649 3650 if ((sepp = strpbrk(*target, "/@")) != NULL) { 3651 sep = *sepp; 3652 *sepp = '\0'; 3653 } 3654 3655 pools = zpool_search_import(g_zfs, &args); 3656 3657 if (pools != NULL) { 3658 nvpair_t *elem = NULL; 3659 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 3660 verify(nvpair_value_nvlist(elem, configp) == 0); 3661 if (pool_match(*configp, *target)) { 3662 count++; 3663 if (match != NULL) { 3664 /* print previously found config */ 3665 if (name != NULL) { 3666 (void) printf("%s\n", name); 3667 dump_nvlist(match, 8); 3668 name = NULL; 3669 } 3670 (void) printf("%s\n", 3671 nvpair_name(elem)); 3672 dump_nvlist(*configp, 8); 3673 } else { 3674 match = *configp; 3675 name = nvpair_name(elem); 3676 } 3677 } 3678 } 3679 } 3680 if (count > 1) 3681 (void) fatal("\tMatched %d pools - use pool GUID " 3682 "instead of pool name or \n" 3683 "\tpool name part of a dataset name to select pool", count); 3684 3685 if (sepp) 3686 *sepp = sep; 3687 /* 3688 * If pool GUID was specified for pool id, replace it with pool name 3689 */ 3690 if (name && (strstr(*target, name) != *target)) { 3691 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); 3692 3693 *target = umem_alloc(sz, UMEM_NOFAIL); 3694 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); 3695 } 3696 3697 *configp = name ? match : NULL; 3698 3699 return (name); 3700 } 3701 3702 int 3703 main(int argc, char **argv) 3704 { 3705 int i, c; 3706 struct rlimit rl = { 1024, 1024 }; 3707 spa_t *spa = NULL; 3708 objset_t *os = NULL; 3709 int dump_all = 1; 3710 int verbose = 0; 3711 int error = 0; 3712 char **searchdirs = NULL; 3713 int nsearch = 0; 3714 char *target; 3715 nvlist_t *policy = NULL; 3716 uint64_t max_txg = UINT64_MAX; 3717 int rewind = ZPOOL_NEVER_REWIND; 3718 char *spa_config_path_env; 3719 boolean_t target_is_spa = B_TRUE; 3720 3721 (void) setrlimit(RLIMIT_NOFILE, &rl); 3722 (void) enable_extended_FILE_stdio(-1, -1); 3723 3724 dprintf_setup(&argc, argv); 3725 3726 /* 3727 * If there is an environment variable SPA_CONFIG_PATH it overrides 3728 * default spa_config_path setting. If -U flag is specified it will 3729 * override this environment variable settings once again. 3730 */ 3731 spa_config_path_env = getenv("SPA_CONFIG_PATH"); 3732 if (spa_config_path_env != NULL) 3733 spa_config_path = spa_config_path_env; 3734 3735 while ((c = getopt(argc, argv, 3736 "AbcCdDeFGhiI:lLmMo:Op:PqRsSt:uU:vx:X")) != -1) { 3737 switch (c) { 3738 case 'b': 3739 case 'c': 3740 case 'C': 3741 case 'd': 3742 case 'D': 3743 case 'G': 3744 case 'h': 3745 case 'i': 3746 case 'l': 3747 case 'm': 3748 case 'M': 3749 case 'O': 3750 case 'R': 3751 case 's': 3752 case 'S': 3753 case 'u': 3754 dump_opt[c]++; 3755 dump_all = 0; 3756 break; 3757 case 'A': 3758 case 'e': 3759 case 'F': 3760 case 'L': 3761 case 'P': 3762 case 'q': 3763 case 'X': 3764 dump_opt[c]++; 3765 break; 3766 /* NB: Sort single match options below. */ 3767 case 'I': 3768 max_inflight = strtoull(optarg, NULL, 0); 3769 if (max_inflight == 0) { 3770 (void) fprintf(stderr, "maximum number " 3771 "of inflight I/Os must be greater " 3772 "than 0\n"); 3773 usage(); 3774 } 3775 break; 3776 case 'o': 3777 error = set_global_var(optarg); 3778 if (error != 0) 3779 usage(); 3780 break; 3781 case 'p': 3782 if (searchdirs == NULL) { 3783 searchdirs = umem_alloc(sizeof (char *), 3784 UMEM_NOFAIL); 3785 } else { 3786 char **tmp = umem_alloc((nsearch + 1) * 3787 sizeof (char *), UMEM_NOFAIL); 3788 bcopy(searchdirs, tmp, nsearch * 3789 sizeof (char *)); 3790 umem_free(searchdirs, 3791 nsearch * sizeof (char *)); 3792 searchdirs = tmp; 3793 } 3794 searchdirs[nsearch++] = optarg; 3795 break; 3796 case 't': 3797 max_txg = strtoull(optarg, NULL, 0); 3798 if (max_txg < TXG_INITIAL) { 3799 (void) fprintf(stderr, "incorrect txg " 3800 "specified: %s\n", optarg); 3801 usage(); 3802 } 3803 break; 3804 case 'U': 3805 spa_config_path = optarg; 3806 break; 3807 case 'v': 3808 verbose++; 3809 break; 3810 case 'x': 3811 vn_dumpdir = optarg; 3812 break; 3813 default: 3814 usage(); 3815 break; 3816 } 3817 } 3818 3819 if (!dump_opt['e'] && searchdirs != NULL) { 3820 (void) fprintf(stderr, "-p option requires use of -e\n"); 3821 usage(); 3822 } 3823 3824 /* 3825 * ZDB does not typically re-read blocks; therefore limit the ARC 3826 * to 256 MB, which can be used entirely for metadata. 3827 */ 3828 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024; 3829 3830 /* 3831 * "zdb -c" uses checksum-verifying scrub i/os which are async reads. 3832 * "zdb -b" uses traversal prefetch which uses async reads. 3833 * For good performance, let several of them be active at once. 3834 */ 3835 zfs_vdev_async_read_max_active = 10; 3836 3837 /* 3838 * Disable reference tracking for better performance. 3839 */ 3840 reference_tracking_enable = B_FALSE; 3841 3842 kernel_init(FREAD); 3843 g_zfs = libzfs_init(); 3844 ASSERT(g_zfs != NULL); 3845 3846 if (dump_all) 3847 verbose = MAX(verbose, 1); 3848 3849 for (c = 0; c < 256; c++) { 3850 if (dump_all && strchr("AeFlLOPRSX", c) == NULL) 3851 dump_opt[c] = 1; 3852 if (dump_opt[c]) 3853 dump_opt[c] += verbose; 3854 } 3855 3856 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 3857 zfs_recover = (dump_opt['A'] > 1); 3858 3859 argc -= optind; 3860 argv += optind; 3861 3862 if (argc < 2 && dump_opt['R']) 3863 usage(); 3864 if (argc < 1) { 3865 if (!dump_opt['e'] && dump_opt['C']) { 3866 dump_cachefile(spa_config_path); 3867 return (0); 3868 } 3869 usage(); 3870 } 3871 3872 if (dump_opt['l']) 3873 return (dump_label(argv[0])); 3874 3875 if (dump_opt['O']) { 3876 if (argc != 2) 3877 usage(); 3878 dump_opt['v'] = verbose + 3; 3879 return (dump_path(argv[0], argv[1])); 3880 } 3881 3882 if (dump_opt['X'] || dump_opt['F']) 3883 rewind = ZPOOL_DO_REWIND | 3884 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 3885 3886 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 3887 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 || 3888 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0) 3889 fatal("internal error: %s", strerror(ENOMEM)); 3890 3891 error = 0; 3892 target = argv[0]; 3893 3894 if (dump_opt['e']) { 3895 nvlist_t *cfg = NULL; 3896 char *name = find_zpool(&target, &cfg, nsearch, searchdirs); 3897 3898 error = ENOENT; 3899 if (name) { 3900 if (dump_opt['C'] > 1) { 3901 (void) printf("\nConfiguration for import:\n"); 3902 dump_nvlist(cfg, 8); 3903 } 3904 if (nvlist_add_nvlist(cfg, 3905 ZPOOL_REWIND_POLICY, policy) != 0) { 3906 fatal("can't open '%s': %s", 3907 target, strerror(ENOMEM)); 3908 } 3909 if ((error = spa_import(name, cfg, NULL, 3910 ZFS_IMPORT_MISSING_LOG)) != 0) { 3911 error = spa_import(name, cfg, NULL, 3912 ZFS_IMPORT_VERBATIM); 3913 } 3914 } 3915 } 3916 3917 if (strpbrk(target, "/@") != NULL) { 3918 size_t targetlen; 3919 3920 target_is_spa = B_FALSE; 3921 /* 3922 * Remove any trailing slash. Later code would get confused 3923 * by it, but we want to allow it so that "pool/" can 3924 * indicate that we want to dump the topmost filesystem, 3925 * rather than the whole pool. 3926 */ 3927 targetlen = strlen(target); 3928 if (targetlen != 0 && target[targetlen - 1] == '/') 3929 target[targetlen - 1] = '\0'; 3930 } 3931 3932 if (error == 0) { 3933 if (target_is_spa || dump_opt['R']) { 3934 error = spa_open_rewind(target, &spa, FTAG, policy, 3935 NULL); 3936 if (error) { 3937 /* 3938 * If we're missing the log device then 3939 * try opening the pool after clearing the 3940 * log state. 3941 */ 3942 mutex_enter(&spa_namespace_lock); 3943 if ((spa = spa_lookup(target)) != NULL && 3944 spa->spa_log_state == SPA_LOG_MISSING) { 3945 spa->spa_log_state = SPA_LOG_CLEAR; 3946 error = 0; 3947 } 3948 mutex_exit(&spa_namespace_lock); 3949 3950 if (!error) { 3951 error = spa_open_rewind(target, &spa, 3952 FTAG, policy, NULL); 3953 } 3954 } 3955 } else { 3956 error = open_objset(target, DMU_OST_ANY, FTAG, &os); 3957 } 3958 } 3959 nvlist_free(policy); 3960 3961 if (error) 3962 fatal("can't open '%s': %s", target, strerror(error)); 3963 3964 argv++; 3965 argc--; 3966 if (!dump_opt['R']) { 3967 if (argc > 0) { 3968 zopt_objects = argc; 3969 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 3970 for (i = 0; i < zopt_objects; i++) { 3971 errno = 0; 3972 zopt_object[i] = strtoull(argv[i], NULL, 0); 3973 if (zopt_object[i] == 0 && errno != 0) 3974 fatal("bad number %s: %s", 3975 argv[i], strerror(errno)); 3976 } 3977 } 3978 if (os != NULL) { 3979 dump_dir(os); 3980 } else if (zopt_objects > 0 && !dump_opt['m']) { 3981 dump_dir(spa->spa_meta_objset); 3982 } else { 3983 dump_zpool(spa); 3984 } 3985 } else { 3986 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 3987 flagbits['c'] = ZDB_FLAG_CHECKSUM; 3988 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 3989 flagbits['e'] = ZDB_FLAG_BSWAP; 3990 flagbits['g'] = ZDB_FLAG_GBH; 3991 flagbits['i'] = ZDB_FLAG_INDIRECT; 3992 flagbits['p'] = ZDB_FLAG_PHYS; 3993 flagbits['r'] = ZDB_FLAG_RAW; 3994 3995 for (i = 0; i < argc; i++) 3996 zdb_read_block(argv[i], spa); 3997 } 3998 3999 if (os != NULL) 4000 close_objset(os, FTAG); 4001 else 4002 spa_close(spa, FTAG); 4003 4004 fuid_table_destroy(); 4005 4006 dump_debug_buffer(); 4007 4008 libzfs_fini(g_zfs); 4009 kernel_fini(); 4010 4011 return (0); 4012 } 4013