zdb.c revision 325915
1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22/* 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2011, 2016 by Delphix. All rights reserved. 25 * Copyright (c) 2014 Integros [integros.com] 26 */ 27 28#include <stdio.h> 29#include <unistd.h> 30#include <stdio_ext.h> 31#include <stdlib.h> 32#include <ctype.h> 33#include <sys/zfs_context.h> 34#include <sys/spa.h> 35#include <sys/spa_impl.h> 36#include <sys/dmu.h> 37#include <sys/zap.h> 38#include <sys/fs/zfs.h> 39#include <sys/zfs_znode.h> 40#include <sys/zfs_sa.h> 41#include <sys/sa.h> 42#include <sys/sa_impl.h> 43#include <sys/vdev.h> 44#include <sys/vdev_impl.h> 45#include <sys/metaslab_impl.h> 46#include <sys/dmu_objset.h> 47#include <sys/dsl_dir.h> 48#include <sys/dsl_dataset.h> 49#include <sys/dsl_pool.h> 50#include <sys/dbuf.h> 51#include <sys/zil.h> 52#include <sys/zil_impl.h> 53#include <sys/stat.h> 54#include <sys/resource.h> 55#include <sys/dmu_traverse.h> 56#include <sys/zio_checksum.h> 57#include <sys/zio_compress.h> 58#include <sys/zfs_fuid.h> 59#include <sys/arc.h> 60#include <sys/ddt.h> 61#include <sys/zfeature.h> 62#include <zfs_comutil.h> 63#include <libcmdutils.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 79extern boolean_t zfs_recover; 80extern uint64_t zfs_arc_max, zfs_arc_meta_limit; 81extern int zfs_vdev_async_read_max_active; 82#else 83boolean_t zfs_recover; 84uint64_t zfs_arc_max, zfs_arc_meta_limit; 85int zfs_vdev_async_read_max_active; 86#endif 87 88const char cmdname[] = "zdb"; 89uint8_t dump_opt[256]; 90 91typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size); 92 93extern void dump_intent_log(zilog_t *); 94uint64_t *zopt_object = NULL; 95int zopt_objects = 0; 96libzfs_handle_t *g_zfs; 97uint64_t max_inflight = 1000; 98 99static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *); 100 101/* 102 * These libumem hooks provide a reasonable set of defaults for the allocator's 103 * debugging facilities. 104 */ 105const char * 106_umem_debug_init() 107{ 108 return ("default,verbose"); /* $UMEM_DEBUG setting */ 109} 110 111const char * 112_umem_logging_init(void) 113{ 114 return ("fail,contents"); /* $UMEM_LOGGING setting */ 115} 116 117static void 118usage(void) 119{ 120 (void) fprintf(stderr, 121 "Usage: %s [-CumMdibcsDvhLXFPAG] [-t txg] [-e [-p path...]] " 122 "[-U config] [-I inflight I/Os] [-x dumpdir] poolname [object...]\n" 123 " %s [-divPA] [-e -p path...] [-U config] dataset " 124 "[object...]\n" 125 " %s -mM [-LXFPA] [-t txg] [-e [-p path...]] [-U config] " 126 "poolname [vdev [metaslab...]]\n" 127 " %s -R [-A] [-e [-p path...]] poolname " 128 "vdev:offset:size[:flags]\n" 129 " %s -S [-PA] [-e [-p path...]] [-U config] poolname\n" 130 " %s -l [-uA] device\n" 131 " %s -C [-A] [-U config]\n\n", 132 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname); 133 134 (void) fprintf(stderr, " Dataset name must include at least one " 135 "separator character '/' or '@'\n"); 136 (void) fprintf(stderr, " If dataset name is specified, only that " 137 "dataset is dumped\n"); 138 (void) fprintf(stderr, " If object numbers are specified, only " 139 "those objects are dumped\n\n"); 140 (void) fprintf(stderr, " Options to control amount of output:\n"); 141 (void) fprintf(stderr, " -u uberblock\n"); 142 (void) fprintf(stderr, " -d dataset(s)\n"); 143 (void) fprintf(stderr, " -i intent logs\n"); 144 (void) fprintf(stderr, " -C config (or cachefile if alone)\n"); 145 (void) fprintf(stderr, " -h pool history\n"); 146 (void) fprintf(stderr, " -b block statistics\n"); 147 (void) fprintf(stderr, " -m metaslabs\n"); 148 (void) fprintf(stderr, " -M metaslab groups\n"); 149 (void) fprintf(stderr, " -c checksum all metadata (twice for " 150 "all data) blocks\n"); 151 (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); 152 (void) fprintf(stderr, " -D dedup statistics\n"); 153 (void) fprintf(stderr, " -S simulate dedup to measure effect\n"); 154 (void) fprintf(stderr, " -v verbose (applies to all others)\n"); 155 (void) fprintf(stderr, " -l dump label contents\n"); 156 (void) fprintf(stderr, " -L disable leak tracking (do not " 157 "load spacemaps)\n"); 158 (void) fprintf(stderr, " -R read and display block from a " 159 "device\n\n"); 160 (void) fprintf(stderr, " Below options are intended for use " 161 "with other options:\n"); 162 (void) fprintf(stderr, " -A ignore assertions (-A), enable " 163 "panic recovery (-AA) or both (-AAA)\n"); 164 (void) fprintf(stderr, " -F attempt automatic rewind within " 165 "safe range of transaction groups\n"); 166 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate " 167 "cachefile\n"); 168 (void) fprintf(stderr, " -X attempt extreme rewind (does not " 169 "work with dataset)\n"); 170 (void) fprintf(stderr, " -e pool is exported/destroyed/" 171 "has altroot/not in a cachefile\n"); 172 (void) fprintf(stderr, " -p <path> -- use one or more with " 173 "-e to specify path to vdev dir\n"); 174 (void) fprintf(stderr, " -x <dumpdir> -- " 175 "dump all read blocks into specified directory\n"); 176 (void) fprintf(stderr, " -P print numbers in parseable form\n"); 177 (void) fprintf(stderr, " -t <txg> -- highest txg to use when " 178 "searching for uberblocks\n"); 179 (void) fprintf(stderr, " -I <number of inflight I/Os> -- " 180 "specify the maximum number of " 181 "checksumming I/Os [default is 200]\n"); 182 (void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before " 183 "exiting\n"); 184 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 185 "to make only that option verbose\n"); 186 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 187 exit(1); 188} 189 190static void 191dump_debug_buffer() 192{ 193 if (dump_opt['G']) { 194 (void) printf("\n"); 195 zfs_dbgmsg_print("zdb"); 196 } 197} 198 199/* 200 * Called for usage errors that are discovered after a call to spa_open(), 201 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. 202 */ 203 204static void 205fatal(const char *fmt, ...) 206{ 207 va_list ap; 208 209 va_start(ap, fmt); 210 (void) fprintf(stderr, "%s: ", cmdname); 211 (void) vfprintf(stderr, fmt, ap); 212 va_end(ap); 213 (void) fprintf(stderr, "\n"); 214 215 dump_debug_buffer(); 216 217 exit(1); 218} 219 220/* ARGSUSED */ 221static void 222dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 223{ 224 nvlist_t *nv; 225 size_t nvsize = *(uint64_t *)data; 226 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 227 228 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH)); 229 230 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 231 232 umem_free(packed, nvsize); 233 234 dump_nvlist(nv, 8); 235 236 nvlist_free(nv); 237} 238 239/* ARGSUSED */ 240static void 241dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size) 242{ 243 spa_history_phys_t *shp = data; 244 245 if (shp == NULL) 246 return; 247 248 (void) printf("\t\tpool_create_len = %llu\n", 249 (u_longlong_t)shp->sh_pool_create_len); 250 (void) printf("\t\tphys_max_off = %llu\n", 251 (u_longlong_t)shp->sh_phys_max_off); 252 (void) printf("\t\tbof = %llu\n", 253 (u_longlong_t)shp->sh_bof); 254 (void) printf("\t\teof = %llu\n", 255 (u_longlong_t)shp->sh_eof); 256 (void) printf("\t\trecords_lost = %llu\n", 257 (u_longlong_t)shp->sh_records_lost); 258} 259 260static void 261zdb_nicenum(uint64_t num, char *buf, size_t buflen) 262{ 263 if (dump_opt['P']) 264 (void) snprintf(buf, buflen, "%llu", (longlong_t)num); 265 else 266 nicenum(num, buf, sizeof (buf)); 267} 268 269const char histo_stars[] = "****************************************"; 270const int histo_width = sizeof (histo_stars) - 1; 271 272static void 273dump_histogram(const uint64_t *histo, int size, int offset) 274{ 275 int i; 276 int minidx = size - 1; 277 int maxidx = 0; 278 uint64_t max = 0; 279 280 for (i = 0; i < size; i++) { 281 if (histo[i] > max) 282 max = histo[i]; 283 if (histo[i] > 0 && i > maxidx) 284 maxidx = i; 285 if (histo[i] > 0 && i < minidx) 286 minidx = i; 287 } 288 289 if (max < histo_width) 290 max = histo_width; 291 292 for (i = minidx; i <= maxidx; i++) { 293 (void) printf("\t\t\t%3u: %6llu %s\n", 294 i + offset, (u_longlong_t)histo[i], 295 &histo_stars[(max - histo[i]) * histo_width / max]); 296 } 297} 298 299static void 300dump_zap_stats(objset_t *os, uint64_t object) 301{ 302 int error; 303 zap_stats_t zs; 304 305 error = zap_get_stats(os, object, &zs); 306 if (error) 307 return; 308 309 if (zs.zs_ptrtbl_len == 0) { 310 ASSERT(zs.zs_num_blocks == 1); 311 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 312 (u_longlong_t)zs.zs_blocksize, 313 (u_longlong_t)zs.zs_num_entries); 314 return; 315 } 316 317 (void) printf("\tFat ZAP stats:\n"); 318 319 (void) printf("\t\tPointer table:\n"); 320 (void) printf("\t\t\t%llu elements\n", 321 (u_longlong_t)zs.zs_ptrtbl_len); 322 (void) printf("\t\t\tzt_blk: %llu\n", 323 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 324 (void) printf("\t\t\tzt_numblks: %llu\n", 325 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 326 (void) printf("\t\t\tzt_shift: %llu\n", 327 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 328 (void) printf("\t\t\tzt_blks_copied: %llu\n", 329 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 330 (void) printf("\t\t\tzt_nextblk: %llu\n", 331 (u_longlong_t)zs.zs_ptrtbl_nextblk); 332 333 (void) printf("\t\tZAP entries: %llu\n", 334 (u_longlong_t)zs.zs_num_entries); 335 (void) printf("\t\tLeaf blocks: %llu\n", 336 (u_longlong_t)zs.zs_num_leafs); 337 (void) printf("\t\tTotal blocks: %llu\n", 338 (u_longlong_t)zs.zs_num_blocks); 339 (void) printf("\t\tzap_block_type: 0x%llx\n", 340 (u_longlong_t)zs.zs_block_type); 341 (void) printf("\t\tzap_magic: 0x%llx\n", 342 (u_longlong_t)zs.zs_magic); 343 (void) printf("\t\tzap_salt: 0x%llx\n", 344 (u_longlong_t)zs.zs_salt); 345 346 (void) printf("\t\tLeafs with 2^n pointers:\n"); 347 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0); 348 349 (void) printf("\t\tBlocks with n*5 entries:\n"); 350 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0); 351 352 (void) printf("\t\tBlocks n/10 full:\n"); 353 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0); 354 355 (void) printf("\t\tEntries with n chunks:\n"); 356 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0); 357 358 (void) printf("\t\tBuckets with n entries:\n"); 359 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0); 360} 361 362/*ARGSUSED*/ 363static void 364dump_none(objset_t *os, uint64_t object, void *data, size_t size) 365{ 366} 367 368/*ARGSUSED*/ 369static void 370dump_unknown(objset_t *os, uint64_t object, void *data, size_t size) 371{ 372 (void) printf("\tUNKNOWN OBJECT TYPE\n"); 373} 374 375/*ARGSUSED*/ 376void 377dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 378{ 379} 380 381/*ARGSUSED*/ 382static void 383dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 384{ 385} 386 387/*ARGSUSED*/ 388static void 389dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 390{ 391 zap_cursor_t zc; 392 zap_attribute_t attr; 393 void *prop; 394 int i; 395 396 dump_zap_stats(os, object); 397 (void) printf("\n"); 398 399 for (zap_cursor_init(&zc, os, object); 400 zap_cursor_retrieve(&zc, &attr) == 0; 401 zap_cursor_advance(&zc)) { 402 (void) printf("\t\t%s = ", attr.za_name); 403 if (attr.za_num_integers == 0) { 404 (void) printf("\n"); 405 continue; 406 } 407 prop = umem_zalloc(attr.za_num_integers * 408 attr.za_integer_length, UMEM_NOFAIL); 409 (void) zap_lookup(os, object, attr.za_name, 410 attr.za_integer_length, attr.za_num_integers, prop); 411 if (attr.za_integer_length == 1) { 412 (void) printf("%s", (char *)prop); 413 } else { 414 for (i = 0; i < attr.za_num_integers; i++) { 415 switch (attr.za_integer_length) { 416 case 2: 417 (void) printf("%u ", 418 ((uint16_t *)prop)[i]); 419 break; 420 case 4: 421 (void) printf("%u ", 422 ((uint32_t *)prop)[i]); 423 break; 424 case 8: 425 (void) printf("%lld ", 426 (u_longlong_t)((int64_t *)prop)[i]); 427 break; 428 } 429 } 430 } 431 (void) printf("\n"); 432 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 433 } 434 zap_cursor_fini(&zc); 435} 436 437static void 438dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size) 439{ 440 bpobj_phys_t *bpop = data; 441 char bytes[32], comp[32], uncomp[32]; 442 443 /* make sure the output won't get truncated */ 444 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 445 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ); 446 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ); 447 448 if (bpop == NULL) 449 return; 450 451 zdb_nicenum(bpop->bpo_bytes, bytes, sizeof (bytes)); 452 zdb_nicenum(bpop->bpo_comp, comp, sizeof (comp)); 453 zdb_nicenum(bpop->bpo_uncomp, uncomp, sizeof (uncomp)); 454 455 (void) printf("\t\tnum_blkptrs = %llu\n", 456 (u_longlong_t)bpop->bpo_num_blkptrs); 457 (void) printf("\t\tbytes = %s\n", bytes); 458 if (size >= BPOBJ_SIZE_V1) { 459 (void) printf("\t\tcomp = %s\n", comp); 460 (void) printf("\t\tuncomp = %s\n", uncomp); 461 } 462 if (size >= sizeof (*bpop)) { 463 (void) printf("\t\tsubobjs = %llu\n", 464 (u_longlong_t)bpop->bpo_subobjs); 465 (void) printf("\t\tnum_subobjs = %llu\n", 466 (u_longlong_t)bpop->bpo_num_subobjs); 467 } 468 469 if (dump_opt['d'] < 5) 470 return; 471 472 for (uint64_t i = 0; i < bpop->bpo_num_blkptrs; i++) { 473 char blkbuf[BP_SPRINTF_LEN]; 474 blkptr_t bp; 475 476 int err = dmu_read(os, object, 477 i * sizeof (bp), sizeof (bp), &bp, 0); 478 if (err != 0) { 479 (void) printf("got error %u from dmu_read\n", err); 480 break; 481 } 482 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp); 483 (void) printf("\t%s\n", blkbuf); 484 } 485} 486 487/* ARGSUSED */ 488static void 489dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size) 490{ 491 dmu_object_info_t doi; 492 493 VERIFY0(dmu_object_info(os, object, &doi)); 494 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP); 495 496 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0); 497 if (err != 0) { 498 (void) printf("got error %u from dmu_read\n", err); 499 kmem_free(subobjs, doi.doi_max_offset); 500 return; 501 } 502 503 int64_t last_nonzero = -1; 504 for (uint64_t i = 0; i < doi.doi_max_offset / 8; i++) { 505 if (subobjs[i] != 0) 506 last_nonzero = i; 507 } 508 509 for (int64_t i = 0; i <= last_nonzero; i++) { 510 (void) printf("\t%llu\n", (longlong_t)subobjs[i]); 511 } 512 kmem_free(subobjs, doi.doi_max_offset); 513} 514 515/*ARGSUSED*/ 516static void 517dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size) 518{ 519 dump_zap_stats(os, object); 520 /* contents are printed elsewhere, properly decoded */ 521} 522 523/*ARGSUSED*/ 524static void 525dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size) 526{ 527 zap_cursor_t zc; 528 zap_attribute_t attr; 529 530 dump_zap_stats(os, object); 531 (void) printf("\n"); 532 533 for (zap_cursor_init(&zc, os, object); 534 zap_cursor_retrieve(&zc, &attr) == 0; 535 zap_cursor_advance(&zc)) { 536 (void) printf("\t\t%s = ", attr.za_name); 537 if (attr.za_num_integers == 0) { 538 (void) printf("\n"); 539 continue; 540 } 541 (void) printf(" %llx : [%d:%d:%d]\n", 542 (u_longlong_t)attr.za_first_integer, 543 (int)ATTR_LENGTH(attr.za_first_integer), 544 (int)ATTR_BSWAP(attr.za_first_integer), 545 (int)ATTR_NUM(attr.za_first_integer)); 546 } 547 zap_cursor_fini(&zc); 548} 549 550/*ARGSUSED*/ 551static void 552dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size) 553{ 554 zap_cursor_t zc; 555 zap_attribute_t attr; 556 uint16_t *layout_attrs; 557 int i; 558 559 dump_zap_stats(os, object); 560 (void) printf("\n"); 561 562 for (zap_cursor_init(&zc, os, object); 563 zap_cursor_retrieve(&zc, &attr) == 0; 564 zap_cursor_advance(&zc)) { 565 (void) printf("\t\t%s = [", attr.za_name); 566 if (attr.za_num_integers == 0) { 567 (void) printf("\n"); 568 continue; 569 } 570 571 VERIFY(attr.za_integer_length == 2); 572 layout_attrs = umem_zalloc(attr.za_num_integers * 573 attr.za_integer_length, UMEM_NOFAIL); 574 575 VERIFY(zap_lookup(os, object, attr.za_name, 576 attr.za_integer_length, 577 attr.za_num_integers, layout_attrs) == 0); 578 579 for (i = 0; i != attr.za_num_integers; i++) 580 (void) printf(" %d ", (int)layout_attrs[i]); 581 (void) printf("]\n"); 582 umem_free(layout_attrs, 583 attr.za_num_integers * attr.za_integer_length); 584 } 585 zap_cursor_fini(&zc); 586} 587 588/*ARGSUSED*/ 589static void 590dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 591{ 592 zap_cursor_t zc; 593 zap_attribute_t attr; 594 const char *typenames[] = { 595 /* 0 */ "not specified", 596 /* 1 */ "FIFO", 597 /* 2 */ "Character Device", 598 /* 3 */ "3 (invalid)", 599 /* 4 */ "Directory", 600 /* 5 */ "5 (invalid)", 601 /* 6 */ "Block Device", 602 /* 7 */ "7 (invalid)", 603 /* 8 */ "Regular File", 604 /* 9 */ "9 (invalid)", 605 /* 10 */ "Symbolic Link", 606 /* 11 */ "11 (invalid)", 607 /* 12 */ "Socket", 608 /* 13 */ "Door", 609 /* 14 */ "Event Port", 610 /* 15 */ "15 (invalid)", 611 }; 612 613 dump_zap_stats(os, object); 614 (void) printf("\n"); 615 616 for (zap_cursor_init(&zc, os, object); 617 zap_cursor_retrieve(&zc, &attr) == 0; 618 zap_cursor_advance(&zc)) { 619 (void) printf("\t\t%s = %lld (type: %s)\n", 620 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 621 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 622 } 623 zap_cursor_fini(&zc); 624} 625 626int 627get_dtl_refcount(vdev_t *vd) 628{ 629 int refcount = 0; 630 631 if (vd->vdev_ops->vdev_op_leaf) { 632 space_map_t *sm = vd->vdev_dtl_sm; 633 634 if (sm != NULL && 635 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 636 return (1); 637 return (0); 638 } 639 640 for (int c = 0; c < vd->vdev_children; c++) 641 refcount += get_dtl_refcount(vd->vdev_child[c]); 642 return (refcount); 643} 644 645int 646get_metaslab_refcount(vdev_t *vd) 647{ 648 int refcount = 0; 649 650 if (vd->vdev_top == vd && !vd->vdev_removing) { 651 for (int m = 0; m < vd->vdev_ms_count; m++) { 652 space_map_t *sm = vd->vdev_ms[m]->ms_sm; 653 654 if (sm != NULL && 655 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 656 refcount++; 657 } 658 } 659 for (int c = 0; c < vd->vdev_children; c++) 660 refcount += get_metaslab_refcount(vd->vdev_child[c]); 661 662 return (refcount); 663} 664 665static int 666verify_spacemap_refcounts(spa_t *spa) 667{ 668 uint64_t expected_refcount = 0; 669 uint64_t actual_refcount; 670 671 (void) feature_get_refcount(spa, 672 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM], 673 &expected_refcount); 674 actual_refcount = get_dtl_refcount(spa->spa_root_vdev); 675 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev); 676 677 if (expected_refcount != actual_refcount) { 678 (void) printf("space map refcount mismatch: expected %lld != " 679 "actual %lld\n", 680 (longlong_t)expected_refcount, 681 (longlong_t)actual_refcount); 682 return (2); 683 } 684 return (0); 685} 686 687static void 688dump_spacemap(objset_t *os, space_map_t *sm) 689{ 690 uint64_t alloc, offset, entry; 691 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 692 "INVALID", "INVALID", "INVALID", "INVALID" }; 693 694 if (sm == NULL) 695 return; 696 697 /* 698 * Print out the freelist entries in both encoded and decoded form. 699 */ 700 alloc = 0; 701 for (offset = 0; offset < space_map_length(sm); 702 offset += sizeof (entry)) { 703 uint8_t mapshift = sm->sm_shift; 704 705 VERIFY0(dmu_read(os, space_map_object(sm), offset, 706 sizeof (entry), &entry, DMU_READ_PREFETCH)); 707 if (SM_DEBUG_DECODE(entry)) { 708 709 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n", 710 (u_longlong_t)(offset / sizeof (entry)), 711 ddata[SM_DEBUG_ACTION_DECODE(entry)], 712 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry), 713 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry)); 714 } else { 715 (void) printf("\t [%6llu] %c range:" 716 " %010llx-%010llx size: %06llx\n", 717 (u_longlong_t)(offset / sizeof (entry)), 718 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 719 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 720 mapshift) + sm->sm_start), 721 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 722 mapshift) + sm->sm_start + 723 (SM_RUN_DECODE(entry) << mapshift)), 724 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift)); 725 if (SM_TYPE_DECODE(entry) == SM_ALLOC) 726 alloc += SM_RUN_DECODE(entry) << mapshift; 727 else 728 alloc -= SM_RUN_DECODE(entry) << mapshift; 729 } 730 } 731 if (alloc != space_map_allocated(sm)) { 732 (void) printf("space_map_object alloc (%llu) INCONSISTENT " 733 "with space map summary (%llu)\n", 734 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc); 735 } 736} 737 738static void 739dump_metaslab_stats(metaslab_t *msp) 740{ 741 char maxbuf[32]; 742 range_tree_t *rt = msp->ms_tree; 743 avl_tree_t *t = &msp->ms_size_tree; 744 int free_pct = range_tree_space(rt) * 100 / msp->ms_size; 745 746 /* max sure nicenum has enough space */ 747 CTASSERT(sizeof (maxbuf) >= NN_NUMBUF_SZ); 748 749 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf, sizeof (maxbuf)); 750 751 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", 752 "segments", avl_numnodes(t), "maxsize", maxbuf, 753 "freepct", free_pct); 754 (void) printf("\tIn-memory histogram:\n"); 755 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 756} 757 758static void 759dump_metaslab(metaslab_t *msp) 760{ 761 vdev_t *vd = msp->ms_group->mg_vd; 762 spa_t *spa = vd->vdev_spa; 763 space_map_t *sm = msp->ms_sm; 764 char freebuf[32]; 765 766 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf, 767 sizeof (freebuf)); 768 769 (void) printf( 770 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", 771 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start, 772 (u_longlong_t)space_map_object(sm), freebuf); 773 774 if (dump_opt['m'] > 2 && !dump_opt['L']) { 775 mutex_enter(&msp->ms_lock); 776 metaslab_load_wait(msp); 777 if (!msp->ms_loaded) { 778 VERIFY0(metaslab_load(msp)); 779 range_tree_stat_verify(msp->ms_tree); 780 } 781 dump_metaslab_stats(msp); 782 metaslab_unload(msp); 783 mutex_exit(&msp->ms_lock); 784 } 785 786 if (dump_opt['m'] > 1 && sm != NULL && 787 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) { 788 /* 789 * The space map histogram represents free space in chunks 790 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift). 791 */ 792 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n", 793 (u_longlong_t)msp->ms_fragmentation); 794 dump_histogram(sm->sm_phys->smp_histogram, 795 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift); 796 } 797 798 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) { 799 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift)); 800 801 mutex_enter(&msp->ms_lock); 802 dump_spacemap(spa->spa_meta_objset, msp->ms_sm); 803 mutex_exit(&msp->ms_lock); 804 } 805} 806 807static void 808print_vdev_metaslab_header(vdev_t *vd) 809{ 810 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n", 811 (u_longlong_t)vd->vdev_id, 812 "metaslabs", (u_longlong_t)vd->vdev_ms_count, 813 "offset", "spacemap", "free"); 814 (void) printf("\t%15s %19s %15s %10s\n", 815 "---------------", "-------------------", 816 "---------------", "-------------"); 817} 818 819static void 820dump_metaslab_groups(spa_t *spa) 821{ 822 vdev_t *rvd = spa->spa_root_vdev; 823 metaslab_class_t *mc = spa_normal_class(spa); 824 uint64_t fragmentation; 825 826 metaslab_class_histogram_verify(mc); 827 828 for (int c = 0; c < rvd->vdev_children; c++) { 829 vdev_t *tvd = rvd->vdev_child[c]; 830 metaslab_group_t *mg = tvd->vdev_mg; 831 832 if (mg->mg_class != mc) 833 continue; 834 835 metaslab_group_histogram_verify(mg); 836 mg->mg_fragmentation = metaslab_group_fragmentation(mg); 837 838 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t" 839 "fragmentation", 840 (u_longlong_t)tvd->vdev_id, 841 (u_longlong_t)tvd->vdev_ms_count); 842 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) { 843 (void) printf("%3s\n", "-"); 844 } else { 845 (void) printf("%3llu%%\n", 846 (u_longlong_t)mg->mg_fragmentation); 847 } 848 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 849 } 850 851 (void) printf("\tpool %s\tfragmentation", spa_name(spa)); 852 fragmentation = metaslab_class_fragmentation(mc); 853 if (fragmentation == ZFS_FRAG_INVALID) 854 (void) printf("\t%3s\n", "-"); 855 else 856 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation); 857 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 858} 859 860static void 861dump_metaslabs(spa_t *spa) 862{ 863 vdev_t *vd, *rvd = spa->spa_root_vdev; 864 uint64_t m, c = 0, children = rvd->vdev_children; 865 866 (void) printf("\nMetaslabs:\n"); 867 868 if (!dump_opt['d'] && zopt_objects > 0) { 869 c = zopt_object[0]; 870 871 if (c >= children) 872 (void) fatal("bad vdev id: %llu", (u_longlong_t)c); 873 874 if (zopt_objects > 1) { 875 vd = rvd->vdev_child[c]; 876 print_vdev_metaslab_header(vd); 877 878 for (m = 1; m < zopt_objects; m++) { 879 if (zopt_object[m] < vd->vdev_ms_count) 880 dump_metaslab( 881 vd->vdev_ms[zopt_object[m]]); 882 else 883 (void) fprintf(stderr, "bad metaslab " 884 "number %llu\n", 885 (u_longlong_t)zopt_object[m]); 886 } 887 (void) printf("\n"); 888 return; 889 } 890 children = c + 1; 891 } 892 for (; c < children; c++) { 893 vd = rvd->vdev_child[c]; 894 print_vdev_metaslab_header(vd); 895 896 for (m = 0; m < vd->vdev_ms_count; m++) 897 dump_metaslab(vd->vdev_ms[m]); 898 (void) printf("\n"); 899 } 900} 901 902static void 903dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) 904{ 905 const ddt_phys_t *ddp = dde->dde_phys; 906 const ddt_key_t *ddk = &dde->dde_key; 907 char *types[4] = { "ditto", "single", "double", "triple" }; 908 char blkbuf[BP_SPRINTF_LEN]; 909 blkptr_t blk; 910 911 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 912 if (ddp->ddp_phys_birth == 0) 913 continue; 914 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); 915 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk); 916 (void) printf("index %llx refcnt %llu %s %s\n", 917 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, 918 types[p], blkbuf); 919 } 920} 921 922static void 923dump_dedup_ratio(const ddt_stat_t *dds) 924{ 925 double rL, rP, rD, D, dedup, compress, copies; 926 927 if (dds->dds_blocks == 0) 928 return; 929 930 rL = (double)dds->dds_ref_lsize; 931 rP = (double)dds->dds_ref_psize; 932 rD = (double)dds->dds_ref_dsize; 933 D = (double)dds->dds_dsize; 934 935 dedup = rD / D; 936 compress = rL / rP; 937 copies = rD / rP; 938 939 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " 940 "dedup * compress / copies = %.2f\n\n", 941 dedup, compress, copies, dedup * compress / copies); 942} 943 944static void 945dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class) 946{ 947 char name[DDT_NAMELEN]; 948 ddt_entry_t dde; 949 uint64_t walk = 0; 950 dmu_object_info_t doi; 951 uint64_t count, dspace, mspace; 952 int error; 953 954 error = ddt_object_info(ddt, type, class, &doi); 955 956 if (error == ENOENT) 957 return; 958 ASSERT(error == 0); 959 960 error = ddt_object_count(ddt, type, class, &count); 961 ASSERT(error == 0); 962 if (count == 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 997static void 998dump_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 1031static void 1032dump_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 1043static void 1044dump_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/* from spa_history.c: spa_history_create_obj() */ 1081#define HIS_BUF_LEN_DEF (128 << 10) 1082#define HIS_BUF_LEN_MAX (1 << 30) 1083 1084static void 1085dump_history(spa_t *spa) 1086{ 1087 nvlist_t **events = NULL; 1088 char *buf = NULL; 1089 uint64_t bufsize = HIS_BUF_LEN_DEF; 1090 uint64_t resid, len, off = 0; 1091 uint_t num = 0; 1092 int error; 1093 time_t tsec; 1094 struct tm t; 1095 char tbuf[30]; 1096 char internalstr[MAXPATHLEN]; 1097 1098 if ((buf = malloc(bufsize)) == NULL) 1099 (void) fprintf(stderr, "Unable to read history: " 1100 "out of memory\n"); 1101 do { 1102 len = bufsize; 1103 1104 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 1105 (void) fprintf(stderr, "Unable to read history: " 1106 "error %d\n", error); 1107 return; 1108 } 1109 1110 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 1111 break; 1112 off -= resid; 1113 1114 /* 1115 * If the history block is too big, double the buffer 1116 * size and try again. 1117 */ 1118 if (resid == len) { 1119 free(buf); 1120 buf = NULL; 1121 1122 bufsize <<= 1; 1123 if ((bufsize >= HIS_BUF_LEN_MAX) || 1124 ((buf = malloc(bufsize)) == NULL)) { 1125 (void) fprintf(stderr, "Unable to read history: " 1126 "out of memory\n"); 1127 return; 1128 } 1129 } 1130 } while (len != 0); 1131 free(buf); 1132 1133 (void) printf("\nHistory:\n"); 1134 for (int i = 0; i < num; i++) { 1135 uint64_t time, txg, ievent; 1136 char *cmd, *intstr; 1137 boolean_t printed = B_FALSE; 1138 1139 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, 1140 &time) != 0) 1141 goto next; 1142 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, 1143 &cmd) != 0) { 1144 if (nvlist_lookup_uint64(events[i], 1145 ZPOOL_HIST_INT_EVENT, &ievent) != 0) 1146 goto next; 1147 verify(nvlist_lookup_uint64(events[i], 1148 ZPOOL_HIST_TXG, &txg) == 0); 1149 verify(nvlist_lookup_string(events[i], 1150 ZPOOL_HIST_INT_STR, &intstr) == 0); 1151 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 1152 goto next; 1153 1154 (void) snprintf(internalstr, 1155 sizeof (internalstr), 1156 "[internal %s txg:%lld] %s", 1157 zfs_history_event_names[ievent], txg, 1158 intstr); 1159 cmd = internalstr; 1160 } 1161 tsec = time; 1162 (void) localtime_r(&tsec, &t); 1163 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 1164 (void) printf("%s %s\n", tbuf, cmd); 1165 printed = B_TRUE; 1166 1167next: 1168 if (dump_opt['h'] > 1) { 1169 if (!printed) 1170 (void) printf("unrecognized record:\n"); 1171 dump_nvlist(events[i], 2); 1172 } 1173 } 1174} 1175 1176/*ARGSUSED*/ 1177static void 1178dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 1179{ 1180} 1181 1182static uint64_t 1183blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, 1184 const zbookmark_phys_t *zb) 1185{ 1186 if (dnp == NULL) { 1187 ASSERT(zb->zb_level < 0); 1188 if (zb->zb_object == 0) 1189 return (zb->zb_blkid); 1190 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 1191 } 1192 1193 ASSERT(zb->zb_level >= 0); 1194 1195 return ((zb->zb_blkid << 1196 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 1197 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 1198} 1199 1200static void 1201snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp) 1202{ 1203 const dva_t *dva = bp->blk_dva; 1204 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 1205 1206 if (dump_opt['b'] >= 6) { 1207 snprintf_blkptr(blkbuf, buflen, bp); 1208 return; 1209 } 1210 1211 if (BP_IS_EMBEDDED(bp)) { 1212 (void) sprintf(blkbuf, 1213 "EMBEDDED et=%u %llxL/%llxP B=%llu", 1214 (int)BPE_GET_ETYPE(bp), 1215 (u_longlong_t)BPE_GET_LSIZE(bp), 1216 (u_longlong_t)BPE_GET_PSIZE(bp), 1217 (u_longlong_t)bp->blk_birth); 1218 return; 1219 } 1220 1221 blkbuf[0] = '\0'; 1222 for (int i = 0; i < ndvas; i++) 1223 (void) snprintf(blkbuf + strlen(blkbuf), 1224 buflen - strlen(blkbuf), "%llu:%llx:%llx ", 1225 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 1226 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 1227 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 1228 1229 if (BP_IS_HOLE(bp)) { 1230 (void) snprintf(blkbuf + strlen(blkbuf), 1231 buflen - strlen(blkbuf), 1232 "%llxL B=%llu", 1233 (u_longlong_t)BP_GET_LSIZE(bp), 1234 (u_longlong_t)bp->blk_birth); 1235 } else { 1236 (void) snprintf(blkbuf + strlen(blkbuf), 1237 buflen - strlen(blkbuf), 1238 "%llxL/%llxP F=%llu B=%llu/%llu", 1239 (u_longlong_t)BP_GET_LSIZE(bp), 1240 (u_longlong_t)BP_GET_PSIZE(bp), 1241 (u_longlong_t)BP_GET_FILL(bp), 1242 (u_longlong_t)bp->blk_birth, 1243 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 1244 } 1245} 1246 1247static void 1248print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb, 1249 const dnode_phys_t *dnp) 1250{ 1251 char blkbuf[BP_SPRINTF_LEN]; 1252 int l; 1253 1254 if (!BP_IS_EMBEDDED(bp)) { 1255 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 1256 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 1257 } 1258 1259 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 1260 1261 ASSERT(zb->zb_level >= 0); 1262 1263 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 1264 if (l == zb->zb_level) { 1265 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 1266 } else { 1267 (void) printf(" "); 1268 } 1269 } 1270 1271 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1272 (void) printf("%s\n", blkbuf); 1273} 1274 1275static int 1276visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 1277 blkptr_t *bp, const zbookmark_phys_t *zb) 1278{ 1279 int err = 0; 1280 1281 if (bp->blk_birth == 0) 1282 return (0); 1283 1284 print_indirect(bp, zb, dnp); 1285 1286 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) { 1287 arc_flags_t flags = ARC_FLAG_WAIT; 1288 int i; 1289 blkptr_t *cbp; 1290 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 1291 arc_buf_t *buf; 1292 uint64_t fill = 0; 1293 1294 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 1295 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 1296 if (err) 1297 return (err); 1298 ASSERT(buf->b_data); 1299 1300 /* recursively visit blocks below this */ 1301 cbp = buf->b_data; 1302 for (i = 0; i < epb; i++, cbp++) { 1303 zbookmark_phys_t czb; 1304 1305 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 1306 zb->zb_level - 1, 1307 zb->zb_blkid * epb + i); 1308 err = visit_indirect(spa, dnp, cbp, &czb); 1309 if (err) 1310 break; 1311 fill += BP_GET_FILL(cbp); 1312 } 1313 if (!err) 1314 ASSERT3U(fill, ==, BP_GET_FILL(bp)); 1315 arc_buf_destroy(buf, &buf); 1316 } 1317 1318 return (err); 1319} 1320 1321/*ARGSUSED*/ 1322static void 1323dump_indirect(dnode_t *dn) 1324{ 1325 dnode_phys_t *dnp = dn->dn_phys; 1326 int j; 1327 zbookmark_phys_t czb; 1328 1329 (void) printf("Indirect blocks:\n"); 1330 1331 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 1332 dn->dn_object, dnp->dn_nlevels - 1, 0); 1333 for (j = 0; j < dnp->dn_nblkptr; j++) { 1334 czb.zb_blkid = j; 1335 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 1336 &dnp->dn_blkptr[j], &czb); 1337 } 1338 1339 (void) printf("\n"); 1340} 1341 1342/*ARGSUSED*/ 1343static void 1344dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 1345{ 1346 dsl_dir_phys_t *dd = data; 1347 time_t crtime; 1348 char nice[32]; 1349 1350 /* make sure nicenum has enough space */ 1351 CTASSERT(sizeof (nice) >= NN_NUMBUF_SZ); 1352 1353 if (dd == NULL) 1354 return; 1355 1356 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 1357 1358 crtime = dd->dd_creation_time; 1359 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1360 (void) printf("\t\thead_dataset_obj = %llu\n", 1361 (u_longlong_t)dd->dd_head_dataset_obj); 1362 (void) printf("\t\tparent_dir_obj = %llu\n", 1363 (u_longlong_t)dd->dd_parent_obj); 1364 (void) printf("\t\torigin_obj = %llu\n", 1365 (u_longlong_t)dd->dd_origin_obj); 1366 (void) printf("\t\tchild_dir_zapobj = %llu\n", 1367 (u_longlong_t)dd->dd_child_dir_zapobj); 1368 zdb_nicenum(dd->dd_used_bytes, nice, sizeof (nice)); 1369 (void) printf("\t\tused_bytes = %s\n", nice); 1370 zdb_nicenum(dd->dd_compressed_bytes, nice, sizeof (nice)); 1371 (void) printf("\t\tcompressed_bytes = %s\n", nice); 1372 zdb_nicenum(dd->dd_uncompressed_bytes, nice, sizeof (nice)); 1373 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 1374 zdb_nicenum(dd->dd_quota, nice, sizeof (nice)); 1375 (void) printf("\t\tquota = %s\n", nice); 1376 zdb_nicenum(dd->dd_reserved, nice, sizeof (nice)); 1377 (void) printf("\t\treserved = %s\n", nice); 1378 (void) printf("\t\tprops_zapobj = %llu\n", 1379 (u_longlong_t)dd->dd_props_zapobj); 1380 (void) printf("\t\tdeleg_zapobj = %llu\n", 1381 (u_longlong_t)dd->dd_deleg_zapobj); 1382 (void) printf("\t\tflags = %llx\n", 1383 (u_longlong_t)dd->dd_flags); 1384 1385#define DO(which) \ 1386 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice, \ 1387 sizeof (nice)); \ 1388 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 1389 DO(HEAD); 1390 DO(SNAP); 1391 DO(CHILD); 1392 DO(CHILD_RSRV); 1393 DO(REFRSRV); 1394#undef DO 1395} 1396 1397/*ARGSUSED*/ 1398static void 1399dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 1400{ 1401 dsl_dataset_phys_t *ds = data; 1402 time_t crtime; 1403 char used[32], compressed[32], uncompressed[32], unique[32]; 1404 char blkbuf[BP_SPRINTF_LEN]; 1405 1406 /* make sure nicenum has enough space */ 1407 CTASSERT(sizeof (used) >= NN_NUMBUF_SZ); 1408 CTASSERT(sizeof (compressed) >= NN_NUMBUF_SZ); 1409 CTASSERT(sizeof (uncompressed) >= NN_NUMBUF_SZ); 1410 CTASSERT(sizeof (unique) >= NN_NUMBUF_SZ); 1411 1412 if (ds == NULL) 1413 return; 1414 1415 ASSERT(size == sizeof (*ds)); 1416 crtime = ds->ds_creation_time; 1417 zdb_nicenum(ds->ds_referenced_bytes, used, sizeof (used)); 1418 zdb_nicenum(ds->ds_compressed_bytes, compressed, sizeof (compressed)); 1419 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed, 1420 sizeof (uncompressed)); 1421 zdb_nicenum(ds->ds_unique_bytes, unique, sizeof (unique)); 1422 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp); 1423 1424 (void) printf("\t\tdir_obj = %llu\n", 1425 (u_longlong_t)ds->ds_dir_obj); 1426 (void) printf("\t\tprev_snap_obj = %llu\n", 1427 (u_longlong_t)ds->ds_prev_snap_obj); 1428 (void) printf("\t\tprev_snap_txg = %llu\n", 1429 (u_longlong_t)ds->ds_prev_snap_txg); 1430 (void) printf("\t\tnext_snap_obj = %llu\n", 1431 (u_longlong_t)ds->ds_next_snap_obj); 1432 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1433 (u_longlong_t)ds->ds_snapnames_zapobj); 1434 (void) printf("\t\tnum_children = %llu\n", 1435 (u_longlong_t)ds->ds_num_children); 1436 (void) printf("\t\tuserrefs_obj = %llu\n", 1437 (u_longlong_t)ds->ds_userrefs_obj); 1438 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1439 (void) printf("\t\tcreation_txg = %llu\n", 1440 (u_longlong_t)ds->ds_creation_txg); 1441 (void) printf("\t\tdeadlist_obj = %llu\n", 1442 (u_longlong_t)ds->ds_deadlist_obj); 1443 (void) printf("\t\tused_bytes = %s\n", used); 1444 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1445 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1446 (void) printf("\t\tunique = %s\n", unique); 1447 (void) printf("\t\tfsid_guid = %llu\n", 1448 (u_longlong_t)ds->ds_fsid_guid); 1449 (void) printf("\t\tguid = %llu\n", 1450 (u_longlong_t)ds->ds_guid); 1451 (void) printf("\t\tflags = %llx\n", 1452 (u_longlong_t)ds->ds_flags); 1453 (void) printf("\t\tnext_clones_obj = %llu\n", 1454 (u_longlong_t)ds->ds_next_clones_obj); 1455 (void) printf("\t\tprops_obj = %llu\n", 1456 (u_longlong_t)ds->ds_props_obj); 1457 (void) printf("\t\tbp = %s\n", blkbuf); 1458} 1459 1460/* ARGSUSED */ 1461static int 1462dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1463{ 1464 char blkbuf[BP_SPRINTF_LEN]; 1465 1466 if (bp->blk_birth != 0) { 1467 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 1468 (void) printf("\t%s\n", blkbuf); 1469 } 1470 return (0); 1471} 1472 1473static void 1474dump_bptree(objset_t *os, uint64_t obj, char *name) 1475{ 1476 char bytes[32]; 1477 bptree_phys_t *bt; 1478 dmu_buf_t *db; 1479 1480 /* make sure nicenum has enough space */ 1481 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 1482 1483 if (dump_opt['d'] < 3) 1484 return; 1485 1486 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 1487 bt = db->db_data; 1488 zdb_nicenum(bt->bt_bytes, bytes, sizeof (bytes)); 1489 (void) printf("\n %s: %llu datasets, %s\n", 1490 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 1491 dmu_buf_rele(db, FTAG); 1492 1493 if (dump_opt['d'] < 5) 1494 return; 1495 1496 (void) printf("\n"); 1497 1498 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 1499} 1500 1501/* ARGSUSED */ 1502static int 1503dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1504{ 1505 char blkbuf[BP_SPRINTF_LEN]; 1506 1507 ASSERT(bp->blk_birth != 0); 1508 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1509 (void) printf("\t%s\n", blkbuf); 1510 return (0); 1511} 1512 1513static void 1514dump_full_bpobj(bpobj_t *bpo, char *name, int indent) 1515{ 1516 char bytes[32]; 1517 char comp[32]; 1518 char uncomp[32]; 1519 1520 /* make sure nicenum has enough space */ 1521 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 1522 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ); 1523 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ); 1524 1525 if (dump_opt['d'] < 3) 1526 return; 1527 1528 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes, sizeof (bytes)); 1529 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1530 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp, sizeof (comp)); 1531 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp, sizeof (uncomp)); 1532 (void) printf(" %*s: object %llu, %llu local blkptrs, " 1533 "%llu subobjs in object %llu, %s (%s/%s comp)\n", 1534 indent * 8, name, 1535 (u_longlong_t)bpo->bpo_object, 1536 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1537 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 1538 (u_longlong_t)bpo->bpo_phys->bpo_subobjs, 1539 bytes, comp, uncomp); 1540 1541 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1542 uint64_t subobj; 1543 bpobj_t subbpo; 1544 int error; 1545 VERIFY0(dmu_read(bpo->bpo_os, 1546 bpo->bpo_phys->bpo_subobjs, 1547 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1548 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1549 if (error != 0) { 1550 (void) printf("ERROR %u while trying to open " 1551 "subobj id %llu\n", 1552 error, (u_longlong_t)subobj); 1553 continue; 1554 } 1555 dump_full_bpobj(&subbpo, "subobj", indent + 1); 1556 bpobj_close(&subbpo); 1557 } 1558 } else { 1559 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", 1560 indent * 8, name, 1561 (u_longlong_t)bpo->bpo_object, 1562 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1563 bytes); 1564 } 1565 1566 if (dump_opt['d'] < 5) 1567 return; 1568 1569 1570 if (indent == 0) { 1571 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 1572 (void) printf("\n"); 1573 } 1574} 1575 1576static void 1577dump_deadlist(dsl_deadlist_t *dl) 1578{ 1579 dsl_deadlist_entry_t *dle; 1580 uint64_t unused; 1581 char bytes[32]; 1582 char comp[32]; 1583 char uncomp[32]; 1584 1585 /* make sure nicenum has enough space */ 1586 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 1587 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ); 1588 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ); 1589 1590 if (dump_opt['d'] < 3) 1591 return; 1592 1593 if (dl->dl_oldfmt) { 1594 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0); 1595 return; 1596 } 1597 1598 zdb_nicenum(dl->dl_phys->dl_used, bytes, sizeof (bytes)); 1599 zdb_nicenum(dl->dl_phys->dl_comp, comp, sizeof (comp)); 1600 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp, sizeof (uncomp)); 1601 (void) printf("\n Deadlist: %s (%s/%s comp)\n", 1602 bytes, comp, uncomp); 1603 1604 if (dump_opt['d'] < 4) 1605 return; 1606 1607 (void) printf("\n"); 1608 1609 /* force the tree to be loaded */ 1610 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); 1611 1612 for (dle = avl_first(&dl->dl_tree); dle; 1613 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1614 if (dump_opt['d'] >= 5) { 1615 char buf[128]; 1616 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ", 1617 (longlong_t)dle->dle_mintxg, 1618 (longlong_t)dle->dle_bpobj.bpo_object); 1619 dump_full_bpobj(&dle->dle_bpobj, buf, 0); 1620 } else { 1621 (void) printf("mintxg %llu -> obj %llu\n", 1622 (longlong_t)dle->dle_mintxg, 1623 (longlong_t)dle->dle_bpobj.bpo_object); 1624 1625 } 1626 } 1627} 1628 1629static avl_tree_t idx_tree; 1630static avl_tree_t domain_tree; 1631static boolean_t fuid_table_loaded; 1632static boolean_t sa_loaded; 1633sa_attr_type_t *sa_attr_table; 1634 1635static void 1636fuid_table_destroy() 1637{ 1638 if (fuid_table_loaded) { 1639 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 1640 fuid_table_loaded = B_FALSE; 1641 } 1642} 1643 1644/* 1645 * print uid or gid information. 1646 * For normal POSIX id just the id is printed in decimal format. 1647 * For CIFS files with FUID the fuid is printed in hex followed by 1648 * the domain-rid string. 1649 */ 1650static void 1651print_idstr(uint64_t id, const char *id_type) 1652{ 1653 if (FUID_INDEX(id)) { 1654 char *domain; 1655 1656 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 1657 (void) printf("\t%s %llx [%s-%d]\n", id_type, 1658 (u_longlong_t)id, domain, (int)FUID_RID(id)); 1659 } else { 1660 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 1661 } 1662 1663} 1664 1665static void 1666dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 1667{ 1668 uint32_t uid_idx, gid_idx; 1669 1670 uid_idx = FUID_INDEX(uid); 1671 gid_idx = FUID_INDEX(gid); 1672 1673 /* Load domain table, if not already loaded */ 1674 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 1675 uint64_t fuid_obj; 1676 1677 /* first find the fuid object. It lives in the master node */ 1678 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 1679 8, 1, &fuid_obj) == 0); 1680 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 1681 (void) zfs_fuid_table_load(os, fuid_obj, 1682 &idx_tree, &domain_tree); 1683 fuid_table_loaded = B_TRUE; 1684 } 1685 1686 print_idstr(uid, "uid"); 1687 print_idstr(gid, "gid"); 1688} 1689 1690/*ARGSUSED*/ 1691static void 1692dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 1693{ 1694 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 1695 sa_handle_t *hdl; 1696 uint64_t xattr, rdev, gen; 1697 uint64_t uid, gid, mode, fsize, parent, links; 1698 uint64_t pflags; 1699 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 1700 time_t z_crtime, z_atime, z_mtime, z_ctime; 1701 sa_bulk_attr_t bulk[12]; 1702 int idx = 0; 1703 int error; 1704 1705 if (!sa_loaded) { 1706 uint64_t sa_attrs = 0; 1707 uint64_t version; 1708 1709 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR, 1710 8, 1, &version) == 0); 1711 if (version >= ZPL_VERSION_SA) { 1712 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 1713 8, 1, &sa_attrs) == 0); 1714 } 1715 if ((error = sa_setup(os, sa_attrs, zfs_attr_table, 1716 ZPL_END, &sa_attr_table)) != 0) { 1717 (void) printf("sa_setup failed errno %d, can't " 1718 "display znode contents\n", error); 1719 return; 1720 } 1721 sa_loaded = B_TRUE; 1722 } 1723 1724 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 1725 (void) printf("Failed to get handle for SA znode\n"); 1726 return; 1727 } 1728 1729 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 1730 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 1731 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 1732 &links, 8); 1733 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 1734 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 1735 &mode, 8); 1736 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 1737 NULL, &parent, 8); 1738 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 1739 &fsize, 8); 1740 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 1741 acctm, 16); 1742 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 1743 modtm, 16); 1744 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 1745 crtm, 16); 1746 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 1747 chgtm, 16); 1748 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 1749 &pflags, 8); 1750 1751 if (sa_bulk_lookup(hdl, bulk, idx)) { 1752 (void) sa_handle_destroy(hdl); 1753 return; 1754 } 1755 1756 z_crtime = (time_t)crtm[0]; 1757 z_atime = (time_t)acctm[0]; 1758 z_mtime = (time_t)modtm[0]; 1759 z_ctime = (time_t)chgtm[0]; 1760 1761 if (dump_opt['d'] > 4) { 1762 error = zfs_obj_to_path(os, object, path, sizeof (path)); 1763 if (error != 0) { 1764 (void) snprintf(path, sizeof (path), 1765 "\?\?\?<object#%llu>", (u_longlong_t)object); 1766 } 1767 (void) printf("\tpath %s\n", path); 1768 } 1769 dump_uidgid(os, uid, gid); 1770 (void) printf("\tatime %s", ctime(&z_atime)); 1771 (void) printf("\tmtime %s", ctime(&z_mtime)); 1772 (void) printf("\tctime %s", ctime(&z_ctime)); 1773 (void) printf("\tcrtime %s", ctime(&z_crtime)); 1774 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 1775 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 1776 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 1777 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 1778 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 1779 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 1780 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 1781 sizeof (uint64_t)) == 0) 1782 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 1783 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 1784 sizeof (uint64_t)) == 0) 1785 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 1786 sa_handle_destroy(hdl); 1787} 1788 1789/*ARGSUSED*/ 1790static void 1791dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 1792{ 1793} 1794 1795/*ARGSUSED*/ 1796static void 1797dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 1798{ 1799} 1800 1801static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 1802 dump_none, /* unallocated */ 1803 dump_zap, /* object directory */ 1804 dump_uint64, /* object array */ 1805 dump_none, /* packed nvlist */ 1806 dump_packed_nvlist, /* packed nvlist size */ 1807 dump_none, /* bpobj */ 1808 dump_bpobj, /* bpobj header */ 1809 dump_none, /* SPA space map header */ 1810 dump_none, /* SPA space map */ 1811 dump_none, /* ZIL intent log */ 1812 dump_dnode, /* DMU dnode */ 1813 dump_dmu_objset, /* DMU objset */ 1814 dump_dsl_dir, /* DSL directory */ 1815 dump_zap, /* DSL directory child map */ 1816 dump_zap, /* DSL dataset snap map */ 1817 dump_zap, /* DSL props */ 1818 dump_dsl_dataset, /* DSL dataset */ 1819 dump_znode, /* ZFS znode */ 1820 dump_acl, /* ZFS V0 ACL */ 1821 dump_uint8, /* ZFS plain file */ 1822 dump_zpldir, /* ZFS directory */ 1823 dump_zap, /* ZFS master node */ 1824 dump_zap, /* ZFS delete queue */ 1825 dump_uint8, /* zvol object */ 1826 dump_zap, /* zvol prop */ 1827 dump_uint8, /* other uint8[] */ 1828 dump_uint64, /* other uint64[] */ 1829 dump_zap, /* other ZAP */ 1830 dump_zap, /* persistent error log */ 1831 dump_uint8, /* SPA history */ 1832 dump_history_offsets, /* SPA history offsets */ 1833 dump_zap, /* Pool properties */ 1834 dump_zap, /* DSL permissions */ 1835 dump_acl, /* ZFS ACL */ 1836 dump_uint8, /* ZFS SYSACL */ 1837 dump_none, /* FUID nvlist */ 1838 dump_packed_nvlist, /* FUID nvlist size */ 1839 dump_zap, /* DSL dataset next clones */ 1840 dump_zap, /* DSL scrub queue */ 1841 dump_zap, /* ZFS user/group used */ 1842 dump_zap, /* ZFS user/group quota */ 1843 dump_zap, /* snapshot refcount tags */ 1844 dump_ddt_zap, /* DDT ZAP object */ 1845 dump_zap, /* DDT statistics */ 1846 dump_znode, /* SA object */ 1847 dump_zap, /* SA Master Node */ 1848 dump_sa_attrs, /* SA attribute registration */ 1849 dump_sa_layouts, /* SA attribute layouts */ 1850 dump_zap, /* DSL scrub translations */ 1851 dump_none, /* fake dedup BP */ 1852 dump_zap, /* deadlist */ 1853 dump_none, /* deadlist hdr */ 1854 dump_zap, /* dsl clones */ 1855 dump_bpobj_subobjs, /* bpobj subobjs */ 1856 dump_unknown, /* Unknown type, must be last */ 1857}; 1858 1859static void 1860dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1861{ 1862 dmu_buf_t *db = NULL; 1863 dmu_object_info_t doi; 1864 dnode_t *dn; 1865 void *bonus = NULL; 1866 size_t bsize = 0; 1867 char iblk[32], dblk[32], lsize[32], asize[32], fill[32]; 1868 char bonus_size[32]; 1869 char aux[50]; 1870 int error; 1871 1872 /* make sure nicenum has enough space */ 1873 CTASSERT(sizeof (iblk) >= NN_NUMBUF_SZ); 1874 CTASSERT(sizeof (dblk) >= NN_NUMBUF_SZ); 1875 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ); 1876 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ); 1877 CTASSERT(sizeof (bonus_size) >= NN_NUMBUF_SZ); 1878 1879 if (*print_header) { 1880 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n", 1881 "Object", "lvl", "iblk", "dblk", "dsize", "lsize", 1882 "%full", "type"); 1883 *print_header = 0; 1884 } 1885 1886 if (object == 0) { 1887 dn = DMU_META_DNODE(os); 1888 } else { 1889 error = dmu_bonus_hold(os, object, FTAG, &db); 1890 if (error) 1891 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1892 object, error); 1893 bonus = db->db_data; 1894 bsize = db->db_size; 1895 dn = DB_DNODE((dmu_buf_impl_t *)db); 1896 } 1897 dmu_object_info_from_dnode(dn, &doi); 1898 1899 zdb_nicenum(doi.doi_metadata_block_size, iblk, sizeof (iblk)); 1900 zdb_nicenum(doi.doi_data_block_size, dblk, sizeof (dblk)); 1901 zdb_nicenum(doi.doi_max_offset, lsize, sizeof (lsize)); 1902 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize, sizeof (asize)); 1903 zdb_nicenum(doi.doi_bonus_size, bonus_size, sizeof (bonus_size)); 1904 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 1905 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 1906 doi.doi_max_offset); 1907 1908 aux[0] = '\0'; 1909 1910 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1911 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1912 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 1913 } 1914 1915 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1916 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1917 ZDB_COMPRESS_NAME(doi.doi_compress)); 1918 } 1919 1920 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n", 1921 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 1922 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 1923 1924 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1925 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n", 1926 "", "", "", "", "", bonus_size, "bonus", 1927 ZDB_OT_NAME(doi.doi_bonus_type)); 1928 } 1929 1930 if (verbosity >= 4) { 1931 (void) printf("\tdnode flags: %s%s%s\n", 1932 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 1933 "USED_BYTES " : "", 1934 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 1935 "USERUSED_ACCOUNTED " : "", 1936 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 1937 "SPILL_BLKPTR" : ""); 1938 (void) printf("\tdnode maxblkid: %llu\n", 1939 (longlong_t)dn->dn_phys->dn_maxblkid); 1940 1941 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, 1942 bonus, bsize); 1943 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); 1944 *print_header = 1; 1945 } 1946 1947 if (verbosity >= 5) 1948 dump_indirect(dn); 1949 1950 if (verbosity >= 5) { 1951 /* 1952 * Report the list of segments that comprise the object. 1953 */ 1954 uint64_t start = 0; 1955 uint64_t end; 1956 uint64_t blkfill = 1; 1957 int minlvl = 1; 1958 1959 if (dn->dn_type == DMU_OT_DNODE) { 1960 minlvl = 0; 1961 blkfill = DNODES_PER_BLOCK; 1962 } 1963 1964 for (;;) { 1965 char segsize[32]; 1966 /* make sure nicenum has enough space */ 1967 CTASSERT(sizeof (segsize) >= NN_NUMBUF_SZ); 1968 error = dnode_next_offset(dn, 1969 0, &start, minlvl, blkfill, 0); 1970 if (error) 1971 break; 1972 end = start; 1973 error = dnode_next_offset(dn, 1974 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 1975 zdb_nicenum(end - start, segsize, sizeof (segsize)); 1976 (void) printf("\t\tsegment [%016llx, %016llx)" 1977 " size %5s\n", (u_longlong_t)start, 1978 (u_longlong_t)end, segsize); 1979 if (error) 1980 break; 1981 start = end; 1982 } 1983 } 1984 1985 if (db != NULL) 1986 dmu_buf_rele(db, FTAG); 1987} 1988 1989static char *objset_types[DMU_OST_NUMTYPES] = { 1990 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1991 1992static void 1993dump_dir(objset_t *os) 1994{ 1995 dmu_objset_stats_t dds; 1996 uint64_t object, object_count; 1997 uint64_t refdbytes, usedobjs, scratch; 1998 char numbuf[32]; 1999 char blkbuf[BP_SPRINTF_LEN + 20]; 2000 char osname[ZFS_MAX_DATASET_NAME_LEN]; 2001 char *type = "UNKNOWN"; 2002 int verbosity = dump_opt['d']; 2003 int print_header = 1; 2004 int i, error; 2005 2006 /* make sure nicenum has enough space */ 2007 CTASSERT(sizeof (numbuf) >= NN_NUMBUF_SZ); 2008 2009 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 2010 dmu_objset_fast_stat(os, &dds); 2011 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 2012 2013 if (dds.dds_type < DMU_OST_NUMTYPES) 2014 type = objset_types[dds.dds_type]; 2015 2016 if (dds.dds_type == DMU_OST_META) { 2017 dds.dds_creation_txg = TXG_INITIAL; 2018 usedobjs = BP_GET_FILL(os->os_rootbp); 2019 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)-> 2020 dd_used_bytes; 2021 } else { 2022 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 2023 } 2024 2025 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp)); 2026 2027 zdb_nicenum(refdbytes, numbuf, sizeof (numbuf)); 2028 2029 if (verbosity >= 4) { 2030 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp "); 2031 (void) snprintf_blkptr(blkbuf + strlen(blkbuf), 2032 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp); 2033 } else { 2034 blkbuf[0] = '\0'; 2035 } 2036 2037 dmu_objset_name(os, osname); 2038 2039 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 2040 "%s, %llu objects%s\n", 2041 osname, type, (u_longlong_t)dmu_objset_id(os), 2042 (u_longlong_t)dds.dds_creation_txg, 2043 numbuf, (u_longlong_t)usedobjs, blkbuf); 2044 2045 if (zopt_objects != 0) { 2046 for (i = 0; i < zopt_objects; i++) 2047 dump_object(os, zopt_object[i], verbosity, 2048 &print_header); 2049 (void) printf("\n"); 2050 return; 2051 } 2052 2053 if (dump_opt['i'] != 0 || verbosity >= 2) 2054 dump_intent_log(dmu_objset_zil(os)); 2055 2056 if (dmu_objset_ds(os) != NULL) 2057 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist); 2058 2059 if (verbosity < 2) 2060 return; 2061 2062 if (BP_IS_HOLE(os->os_rootbp)) 2063 return; 2064 2065 dump_object(os, 0, verbosity, &print_header); 2066 object_count = 0; 2067 if (DMU_USERUSED_DNODE(os) != NULL && 2068 DMU_USERUSED_DNODE(os)->dn_type != 0) { 2069 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 2070 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 2071 } 2072 2073 object = 0; 2074 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 2075 dump_object(os, object, verbosity, &print_header); 2076 object_count++; 2077 } 2078 2079 ASSERT3U(object_count, ==, usedobjs); 2080 2081 (void) printf("\n"); 2082 2083 if (error != ESRCH) { 2084 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 2085 abort(); 2086 } 2087} 2088 2089static void 2090dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 2091{ 2092 time_t timestamp = ub->ub_timestamp; 2093 2094 (void) printf(header ? header : ""); 2095 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 2096 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 2097 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 2098 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 2099 (void) printf("\ttimestamp = %llu UTC = %s", 2100 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 2101 if (dump_opt['u'] >= 3) { 2102 char blkbuf[BP_SPRINTF_LEN]; 2103 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp); 2104 (void) printf("\trootbp = %s\n", blkbuf); 2105 } 2106 (void) printf(footer ? footer : ""); 2107} 2108 2109static void 2110dump_config(spa_t *spa) 2111{ 2112 dmu_buf_t *db; 2113 size_t nvsize = 0; 2114 int error = 0; 2115 2116 2117 error = dmu_bonus_hold(spa->spa_meta_objset, 2118 spa->spa_config_object, FTAG, &db); 2119 2120 if (error == 0) { 2121 nvsize = *(uint64_t *)db->db_data; 2122 dmu_buf_rele(db, FTAG); 2123 2124 (void) printf("\nMOS Configuration:\n"); 2125 dump_packed_nvlist(spa->spa_meta_objset, 2126 spa->spa_config_object, (void *)&nvsize, 1); 2127 } else { 2128 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 2129 (u_longlong_t)spa->spa_config_object, error); 2130 } 2131} 2132 2133static void 2134dump_cachefile(const char *cachefile) 2135{ 2136 int fd; 2137 struct stat64 statbuf; 2138 char *buf; 2139 nvlist_t *config; 2140 2141 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 2142 (void) printf("cannot open '%s': %s\n", cachefile, 2143 strerror(errno)); 2144 exit(1); 2145 } 2146 2147 if (fstat64(fd, &statbuf) != 0) { 2148 (void) printf("failed to stat '%s': %s\n", cachefile, 2149 strerror(errno)); 2150 exit(1); 2151 } 2152 2153 if ((buf = malloc(statbuf.st_size)) == NULL) { 2154 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 2155 (u_longlong_t)statbuf.st_size); 2156 exit(1); 2157 } 2158 2159 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 2160 (void) fprintf(stderr, "failed to read %llu bytes\n", 2161 (u_longlong_t)statbuf.st_size); 2162 exit(1); 2163 } 2164 2165 (void) close(fd); 2166 2167 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 2168 (void) fprintf(stderr, "failed to unpack nvlist\n"); 2169 exit(1); 2170 } 2171 2172 free(buf); 2173 2174 dump_nvlist(config, 0); 2175 2176 nvlist_free(config); 2177} 2178 2179#define ZDB_MAX_UB_HEADER_SIZE 32 2180 2181static void 2182dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) 2183{ 2184 vdev_t vd; 2185 vdev_t *vdp = &vd; 2186 char header[ZDB_MAX_UB_HEADER_SIZE]; 2187 2188 vd.vdev_ashift = ashift; 2189 vdp->vdev_top = vdp; 2190 2191 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { 2192 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); 2193 uberblock_t *ub = (void *)((char *)lbl + uoff); 2194 2195 if (uberblock_verify(ub)) 2196 continue; 2197 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 2198 "Uberblock[%d]\n", i); 2199 dump_uberblock(ub, header, ""); 2200 } 2201} 2202 2203static void 2204dump_label(const char *dev) 2205{ 2206 int fd; 2207 vdev_label_t label; 2208 char *path, *buf = label.vl_vdev_phys.vp_nvlist; 2209 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 2210 struct stat64 statbuf; 2211 uint64_t psize, ashift; 2212 int len = strlen(dev) + 1; 2213 2214 if (strncmp(dev, ZFS_DISK_ROOTD, strlen(ZFS_DISK_ROOTD)) == 0) { 2215 len++; 2216 path = malloc(len); 2217 (void) snprintf(path, len, "%s%s", ZFS_RDISK_ROOTD, 2218 dev + strlen(ZFS_DISK_ROOTD)); 2219 } else { 2220 path = strdup(dev); 2221 } 2222 2223 if ((fd = open64(path, O_RDONLY)) < 0) { 2224 (void) printf("cannot open '%s': %s\n", path, strerror(errno)); 2225 free(path); 2226 exit(1); 2227 } 2228 2229 if (fstat64(fd, &statbuf) != 0) { 2230 (void) printf("failed to stat '%s': %s\n", path, 2231 strerror(errno)); 2232 free(path); 2233 (void) close(fd); 2234 exit(1); 2235 } 2236 2237 if (S_ISBLK(statbuf.st_mode)) { 2238 (void) printf("cannot use '%s': character device required\n", 2239 path); 2240 free(path); 2241 (void) close(fd); 2242 exit(1); 2243 } 2244 2245 psize = statbuf.st_size; 2246 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 2247 2248 for (int l = 0; l < VDEV_LABELS; l++) { 2249 nvlist_t *config = NULL; 2250 2251 (void) printf("--------------------------------------------\n"); 2252 (void) printf("LABEL %d\n", l); 2253 (void) printf("--------------------------------------------\n"); 2254 2255 if (pread64(fd, &label, sizeof (label), 2256 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 2257 (void) printf("failed to read label %d\n", l); 2258 continue; 2259 } 2260 2261 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 2262 (void) printf("failed to unpack label %d\n", l); 2263 ashift = SPA_MINBLOCKSHIFT; 2264 } else { 2265 nvlist_t *vdev_tree = NULL; 2266 2267 dump_nvlist(config, 4); 2268 if ((nvlist_lookup_nvlist(config, 2269 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 2270 (nvlist_lookup_uint64(vdev_tree, 2271 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 2272 ashift = SPA_MINBLOCKSHIFT; 2273 nvlist_free(config); 2274 } 2275 if (dump_opt['u']) 2276 dump_label_uberblocks(&label, ashift); 2277 } 2278 2279 free(path); 2280 (void) close(fd); 2281} 2282 2283static uint64_t dataset_feature_count[SPA_FEATURES]; 2284 2285/*ARGSUSED*/ 2286static int 2287dump_one_dir(const char *dsname, void *arg) 2288{ 2289 int error; 2290 objset_t *os; 2291 2292 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os); 2293 if (error) { 2294 (void) printf("Could not open %s, error %d\n", dsname, error); 2295 return (0); 2296 } 2297 2298 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) { 2299 if (!dmu_objset_ds(os)->ds_feature_inuse[f]) 2300 continue; 2301 ASSERT(spa_feature_table[f].fi_flags & 2302 ZFEATURE_FLAG_PER_DATASET); 2303 dataset_feature_count[f]++; 2304 } 2305 2306 dump_dir(os); 2307 dmu_objset_disown(os, FTAG); 2308 fuid_table_destroy(); 2309 sa_loaded = B_FALSE; 2310 return (0); 2311} 2312 2313/* 2314 * Block statistics. 2315 */ 2316#define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2) 2317typedef struct zdb_blkstats { 2318 uint64_t zb_asize; 2319 uint64_t zb_lsize; 2320 uint64_t zb_psize; 2321 uint64_t zb_count; 2322 uint64_t zb_gangs; 2323 uint64_t zb_ditto_samevdev; 2324 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 2325} zdb_blkstats_t; 2326 2327/* 2328 * Extended object types to report deferred frees and dedup auto-ditto blocks. 2329 */ 2330#define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 2331#define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 2332#define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 2333#define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 2334 2335static char *zdb_ot_extname[] = { 2336 "deferred free", 2337 "dedup ditto", 2338 "other", 2339 "Total", 2340}; 2341 2342#define ZB_TOTAL DN_MAX_LEVELS 2343 2344typedef struct zdb_cb { 2345 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 2346 uint64_t zcb_dedup_asize; 2347 uint64_t zcb_dedup_blocks; 2348 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES]; 2349 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES] 2350 [BPE_PAYLOAD_SIZE]; 2351 uint64_t zcb_start; 2352 uint64_t zcb_lastprint; 2353 uint64_t zcb_totalasize; 2354 uint64_t zcb_errors[256]; 2355 int zcb_readfails; 2356 int zcb_haderrors; 2357 spa_t *zcb_spa; 2358} zdb_cb_t; 2359 2360static void 2361zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 2362 dmu_object_type_t type) 2363{ 2364 uint64_t refcnt = 0; 2365 2366 ASSERT(type < ZDB_OT_TOTAL); 2367 2368 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 2369 return; 2370 2371 for (int i = 0; i < 4; i++) { 2372 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 2373 int t = (i & 1) ? type : ZDB_OT_TOTAL; 2374 int equal; 2375 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 2376 2377 zb->zb_asize += BP_GET_ASIZE(bp); 2378 zb->zb_lsize += BP_GET_LSIZE(bp); 2379 zb->zb_psize += BP_GET_PSIZE(bp); 2380 zb->zb_count++; 2381 2382 /* 2383 * The histogram is only big enough to record blocks up to 2384 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last, 2385 * "other", bucket. 2386 */ 2387 int idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT; 2388 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1); 2389 zb->zb_psize_histogram[idx]++; 2390 2391 zb->zb_gangs += BP_COUNT_GANG(bp); 2392 2393 switch (BP_GET_NDVAS(bp)) { 2394 case 2: 2395 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 2396 DVA_GET_VDEV(&bp->blk_dva[1])) 2397 zb->zb_ditto_samevdev++; 2398 break; 2399 case 3: 2400 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == 2401 DVA_GET_VDEV(&bp->blk_dva[1])) + 2402 (DVA_GET_VDEV(&bp->blk_dva[0]) == 2403 DVA_GET_VDEV(&bp->blk_dva[2])) + 2404 (DVA_GET_VDEV(&bp->blk_dva[1]) == 2405 DVA_GET_VDEV(&bp->blk_dva[2])); 2406 if (equal != 0) 2407 zb->zb_ditto_samevdev++; 2408 break; 2409 } 2410 2411 } 2412 2413 if (BP_IS_EMBEDDED(bp)) { 2414 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++; 2415 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)] 2416 [BPE_GET_PSIZE(bp)]++; 2417 return; 2418 } 2419 2420 if (dump_opt['L']) 2421 return; 2422 2423 if (BP_GET_DEDUP(bp)) { 2424 ddt_t *ddt; 2425 ddt_entry_t *dde; 2426 2427 ddt = ddt_select(zcb->zcb_spa, bp); 2428 ddt_enter(ddt); 2429 dde = ddt_lookup(ddt, bp, B_FALSE); 2430 2431 if (dde == NULL) { 2432 refcnt = 0; 2433 } else { 2434 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 2435 ddt_phys_decref(ddp); 2436 refcnt = ddp->ddp_refcnt; 2437 if (ddt_phys_total_refcnt(dde) == 0) 2438 ddt_remove(ddt, dde); 2439 } 2440 ddt_exit(ddt); 2441 } 2442 2443 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 2444 refcnt ? 0 : spa_first_txg(zcb->zcb_spa), 2445 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 2446} 2447 2448/* ARGSUSED */ 2449static void 2450zdb_blkptr_done(zio_t *zio) 2451{ 2452 spa_t *spa = zio->io_spa; 2453 blkptr_t *bp = zio->io_bp; 2454 int ioerr = zio->io_error; 2455 zdb_cb_t *zcb = zio->io_private; 2456 zbookmark_phys_t *zb = &zio->io_bookmark; 2457 2458 zio_data_buf_free(zio->io_data, zio->io_size); 2459 2460 mutex_enter(&spa->spa_scrub_lock); 2461 spa->spa_scrub_inflight--; 2462 cv_broadcast(&spa->spa_scrub_io_cv); 2463 2464 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 2465 char blkbuf[BP_SPRINTF_LEN]; 2466 2467 zcb->zcb_haderrors = 1; 2468 zcb->zcb_errors[ioerr]++; 2469 2470 if (dump_opt['b'] >= 2) 2471 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2472 else 2473 blkbuf[0] = '\0'; 2474 2475 (void) printf("zdb_blkptr_cb: " 2476 "Got error %d reading " 2477 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 2478 ioerr, 2479 (u_longlong_t)zb->zb_objset, 2480 (u_longlong_t)zb->zb_object, 2481 (u_longlong_t)zb->zb_level, 2482 (u_longlong_t)zb->zb_blkid, 2483 blkbuf); 2484 } 2485 mutex_exit(&spa->spa_scrub_lock); 2486} 2487 2488/* ARGSUSED */ 2489static int 2490zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2491 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 2492{ 2493 zdb_cb_t *zcb = arg; 2494 dmu_object_type_t type; 2495 boolean_t is_metadata; 2496 2497 if (bp == NULL) 2498 return (0); 2499 2500 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) { 2501 char blkbuf[BP_SPRINTF_LEN]; 2502 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2503 (void) printf("objset %llu object %llu " 2504 "level %lld offset 0x%llx %s\n", 2505 (u_longlong_t)zb->zb_objset, 2506 (u_longlong_t)zb->zb_object, 2507 (longlong_t)zb->zb_level, 2508 (u_longlong_t)blkid2offset(dnp, bp, zb), 2509 blkbuf); 2510 } 2511 2512 if (BP_IS_HOLE(bp)) 2513 return (0); 2514 2515 type = BP_GET_TYPE(bp); 2516 2517 zdb_count_block(zcb, zilog, bp, 2518 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 2519 2520 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 2521 2522 if (!BP_IS_EMBEDDED(bp) && 2523 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) { 2524 size_t size = BP_GET_PSIZE(bp); 2525 void *data = zio_data_buf_alloc(size); 2526 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 2527 2528 /* If it's an intent log block, failure is expected. */ 2529 if (zb->zb_level == ZB_ZIL_LEVEL) 2530 flags |= ZIO_FLAG_SPECULATIVE; 2531 2532 mutex_enter(&spa->spa_scrub_lock); 2533 while (spa->spa_scrub_inflight > max_inflight) 2534 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 2535 spa->spa_scrub_inflight++; 2536 mutex_exit(&spa->spa_scrub_lock); 2537 2538 zio_nowait(zio_read(NULL, spa, bp, data, size, 2539 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 2540 } 2541 2542 zcb->zcb_readfails = 0; 2543 2544 /* only call gethrtime() every 100 blocks */ 2545 static int iters; 2546 if (++iters > 100) 2547 iters = 0; 2548 else 2549 return (0); 2550 2551 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) { 2552 uint64_t now = gethrtime(); 2553 char buf[10]; 2554 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 2555 int kb_per_sec = 2556 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 2557 int sec_remaining = 2558 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 2559 2560 /* make sure nicenum has enough space */ 2561 CTASSERT(sizeof (buf) >= NN_NUMBUF_SZ); 2562 2563 zfs_nicenum(bytes, buf, sizeof (buf)); 2564 (void) fprintf(stderr, 2565 "\r%5s completed (%4dMB/s) " 2566 "estimated time remaining: %uhr %02umin %02usec ", 2567 buf, kb_per_sec / 1024, 2568 sec_remaining / 60 / 60, 2569 sec_remaining / 60 % 60, 2570 sec_remaining % 60); 2571 2572 zcb->zcb_lastprint = now; 2573 } 2574 2575 return (0); 2576} 2577 2578static void 2579zdb_leak(void *arg, uint64_t start, uint64_t size) 2580{ 2581 vdev_t *vd = arg; 2582 2583 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 2584 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 2585} 2586 2587static metaslab_ops_t zdb_metaslab_ops = { 2588 NULL /* alloc */ 2589}; 2590 2591static void 2592zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 2593{ 2594 ddt_bookmark_t ddb = { 0 }; 2595 ddt_entry_t dde; 2596 int error; 2597 2598 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 2599 blkptr_t blk; 2600 ddt_phys_t *ddp = dde.dde_phys; 2601 2602 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 2603 return; 2604 2605 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 2606 2607 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 2608 if (ddp->ddp_phys_birth == 0) 2609 continue; 2610 ddt_bp_create(ddb.ddb_checksum, 2611 &dde.dde_key, ddp, &blk); 2612 if (p == DDT_PHYS_DITTO) { 2613 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 2614 } else { 2615 zcb->zcb_dedup_asize += 2616 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 2617 zcb->zcb_dedup_blocks++; 2618 } 2619 } 2620 if (!dump_opt['L']) { 2621 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 2622 ddt_enter(ddt); 2623 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 2624 ddt_exit(ddt); 2625 } 2626 } 2627 2628 ASSERT(error == ENOENT); 2629} 2630 2631static void 2632zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 2633{ 2634 zcb->zcb_spa = spa; 2635 2636 if (!dump_opt['L']) { 2637 vdev_t *rvd = spa->spa_root_vdev; 2638 for (uint64_t c = 0; c < rvd->vdev_children; c++) { 2639 vdev_t *vd = rvd->vdev_child[c]; 2640 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 2641 metaslab_t *msp = vd->vdev_ms[m]; 2642 mutex_enter(&msp->ms_lock); 2643 metaslab_unload(msp); 2644 2645 /* 2646 * For leak detection, we overload the metaslab 2647 * ms_tree to contain allocated segments 2648 * instead of free segments. As a result, 2649 * we can't use the normal metaslab_load/unload 2650 * interfaces. 2651 */ 2652 if (msp->ms_sm != NULL) { 2653 (void) fprintf(stderr, 2654 "\rloading space map for " 2655 "vdev %llu of %llu, " 2656 "metaslab %llu of %llu ...", 2657 (longlong_t)c, 2658 (longlong_t)rvd->vdev_children, 2659 (longlong_t)m, 2660 (longlong_t)vd->vdev_ms_count); 2661 2662 msp->ms_ops = &zdb_metaslab_ops; 2663 2664 /* 2665 * We don't want to spend the CPU 2666 * manipulating the size-ordered 2667 * tree, so clear the range_tree 2668 * ops. 2669 */ 2670 msp->ms_tree->rt_ops = NULL; 2671 VERIFY0(space_map_load(msp->ms_sm, 2672 msp->ms_tree, SM_ALLOC)); 2673 msp->ms_loaded = B_TRUE; 2674 } 2675 mutex_exit(&msp->ms_lock); 2676 } 2677 } 2678 (void) fprintf(stderr, "\n"); 2679 } 2680 2681 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2682 2683 zdb_ddt_leak_init(spa, zcb); 2684 2685 spa_config_exit(spa, SCL_CONFIG, FTAG); 2686} 2687 2688static void 2689zdb_leak_fini(spa_t *spa) 2690{ 2691 if (!dump_opt['L']) { 2692 vdev_t *rvd = spa->spa_root_vdev; 2693 for (int c = 0; c < rvd->vdev_children; c++) { 2694 vdev_t *vd = rvd->vdev_child[c]; 2695 for (int m = 0; m < vd->vdev_ms_count; m++) { 2696 metaslab_t *msp = vd->vdev_ms[m]; 2697 mutex_enter(&msp->ms_lock); 2698 2699 /* 2700 * The ms_tree has been overloaded to 2701 * contain allocated segments. Now that we 2702 * finished traversing all blocks, any 2703 * block that remains in the ms_tree 2704 * represents an allocated block that we 2705 * did not claim during the traversal. 2706 * Claimed blocks would have been removed 2707 * from the ms_tree. 2708 */ 2709 range_tree_vacate(msp->ms_tree, zdb_leak, vd); 2710 msp->ms_loaded = B_FALSE; 2711 2712 mutex_exit(&msp->ms_lock); 2713 } 2714 } 2715 } 2716} 2717 2718/* ARGSUSED */ 2719static int 2720count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 2721{ 2722 zdb_cb_t *zcb = arg; 2723 2724 if (dump_opt['b'] >= 5) { 2725 char blkbuf[BP_SPRINTF_LEN]; 2726 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2727 (void) printf("[%s] %s\n", 2728 "deferred free", blkbuf); 2729 } 2730 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 2731 return (0); 2732} 2733 2734static int 2735dump_block_stats(spa_t *spa) 2736{ 2737 zdb_cb_t zcb = { 0 }; 2738 zdb_blkstats_t *zb, *tzb; 2739 uint64_t norm_alloc, norm_space, total_alloc, total_found; 2740 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; 2741 boolean_t leaks = B_FALSE; 2742 2743 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 2744 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 2745 (dump_opt['c'] == 1) ? "metadata " : "", 2746 dump_opt['c'] ? "checksums " : "", 2747 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 2748 !dump_opt['L'] ? "nothing leaked " : ""); 2749 2750 /* 2751 * Load all space maps as SM_ALLOC maps, then traverse the pool 2752 * claiming each block we discover. If the pool is perfectly 2753 * consistent, the space maps will be empty when we're done. 2754 * Anything left over is a leak; any block we can't claim (because 2755 * it's not part of any space map) is a double allocation, 2756 * reference to a freed block, or an unclaimed log block. 2757 */ 2758 zdb_leak_init(spa, &zcb); 2759 2760 /* 2761 * If there's a deferred-free bplist, process that first. 2762 */ 2763 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 2764 count_block_cb, &zcb, NULL); 2765 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2766 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 2767 count_block_cb, &zcb, NULL); 2768 } 2769 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 2770 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 2771 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 2772 &zcb, NULL)); 2773 } 2774 2775 if (dump_opt['c'] > 1) 2776 flags |= TRAVERSE_PREFETCH_DATA; 2777 2778 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 2779 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 2780 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 2781 2782 /* 2783 * If we've traversed the data blocks then we need to wait for those 2784 * I/Os to complete. We leverage "The Godfather" zio to wait on 2785 * all async I/Os to complete. 2786 */ 2787 if (dump_opt['c']) { 2788 for (int i = 0; i < max_ncpus; i++) { 2789 (void) zio_wait(spa->spa_async_zio_root[i]); 2790 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL, 2791 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 2792 ZIO_FLAG_GODFATHER); 2793 } 2794 } 2795 2796 if (zcb.zcb_haderrors) { 2797 (void) printf("\nError counts:\n\n"); 2798 (void) printf("\t%5s %s\n", "errno", "count"); 2799 for (int e = 0; e < 256; e++) { 2800 if (zcb.zcb_errors[e] != 0) { 2801 (void) printf("\t%5d %llu\n", 2802 e, (u_longlong_t)zcb.zcb_errors[e]); 2803 } 2804 } 2805 } 2806 2807 /* 2808 * Report any leaked segments. 2809 */ 2810 zdb_leak_fini(spa); 2811 2812 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 2813 2814 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 2815 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 2816 2817 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); 2818 total_found = tzb->zb_asize - zcb.zcb_dedup_asize; 2819 2820 if (total_found == total_alloc) { 2821 if (!dump_opt['L']) 2822 (void) printf("\n\tNo leaks (block sum matches space" 2823 " maps exactly)\n"); 2824 } else { 2825 (void) printf("block traversal size %llu != alloc %llu " 2826 "(%s %lld)\n", 2827 (u_longlong_t)total_found, 2828 (u_longlong_t)total_alloc, 2829 (dump_opt['L']) ? "unreachable" : "leaked", 2830 (longlong_t)(total_alloc - total_found)); 2831 leaks = B_TRUE; 2832 } 2833 2834 if (tzb->zb_count == 0) 2835 return (2); 2836 2837 (void) printf("\n"); 2838 (void) printf("\tbp count: %10llu\n", 2839 (u_longlong_t)tzb->zb_count); 2840 (void) printf("\tganged count: %10llu\n", 2841 (longlong_t)tzb->zb_gangs); 2842 (void) printf("\tbp logical: %10llu avg: %6llu\n", 2843 (u_longlong_t)tzb->zb_lsize, 2844 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 2845 (void) printf("\tbp physical: %10llu avg:" 2846 " %6llu compression: %6.2f\n", 2847 (u_longlong_t)tzb->zb_psize, 2848 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 2849 (double)tzb->zb_lsize / tzb->zb_psize); 2850 (void) printf("\tbp allocated: %10llu avg:" 2851 " %6llu compression: %6.2f\n", 2852 (u_longlong_t)tzb->zb_asize, 2853 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 2854 (double)tzb->zb_lsize / tzb->zb_asize); 2855 (void) printf("\tbp deduped: %10llu ref>1:" 2856 " %6llu deduplication: %6.2f\n", 2857 (u_longlong_t)zcb.zcb_dedup_asize, 2858 (u_longlong_t)zcb.zcb_dedup_blocks, 2859 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 2860 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", 2861 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 2862 2863 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) { 2864 if (zcb.zcb_embedded_blocks[i] == 0) 2865 continue; 2866 (void) printf("\n"); 2867 (void) printf("\tadditional, non-pointer bps of type %u: " 2868 "%10llu\n", 2869 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]); 2870 2871 if (dump_opt['b'] >= 3) { 2872 (void) printf("\t number of (compressed) bytes: " 2873 "number of bps\n"); 2874 dump_histogram(zcb.zcb_embedded_histogram[i], 2875 sizeof (zcb.zcb_embedded_histogram[i]) / 2876 sizeof (zcb.zcb_embedded_histogram[i][0]), 0); 2877 } 2878 } 2879 2880 if (tzb->zb_ditto_samevdev != 0) { 2881 (void) printf("\tDittoed blocks on same vdev: %llu\n", 2882 (longlong_t)tzb->zb_ditto_samevdev); 2883 } 2884 2885 if (dump_opt['b'] >= 2) { 2886 int l, t, level; 2887 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 2888 "\t avg\t comp\t%%Total\tType\n"); 2889 2890 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 2891 char csize[32], lsize[32], psize[32], asize[32]; 2892 char avg[32], gang[32]; 2893 char *typename; 2894 2895 /* make sure nicenum has enough space */ 2896 CTASSERT(sizeof (csize) >= NN_NUMBUF_SZ); 2897 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ); 2898 CTASSERT(sizeof (psize) >= NN_NUMBUF_SZ); 2899 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ); 2900 CTASSERT(sizeof (avg) >= NN_NUMBUF_SZ); 2901 CTASSERT(sizeof (gang) >= NN_NUMBUF_SZ); 2902 2903 if (t < DMU_OT_NUMTYPES) 2904 typename = dmu_ot[t].ot_name; 2905 else 2906 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 2907 2908 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 2909 (void) printf("%6s\t%5s\t%5s\t%5s" 2910 "\t%5s\t%5s\t%6s\t%s\n", 2911 "-", 2912 "-", 2913 "-", 2914 "-", 2915 "-", 2916 "-", 2917 "-", 2918 typename); 2919 continue; 2920 } 2921 2922 for (l = ZB_TOTAL - 1; l >= -1; l--) { 2923 level = (l == -1 ? ZB_TOTAL : l); 2924 zb = &zcb.zcb_type[level][t]; 2925 2926 if (zb->zb_asize == 0) 2927 continue; 2928 2929 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 2930 continue; 2931 2932 if (level == 0 && zb->zb_asize == 2933 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 2934 continue; 2935 2936 zdb_nicenum(zb->zb_count, csize, 2937 sizeof (csize)); 2938 zdb_nicenum(zb->zb_lsize, lsize, 2939 sizeof (lsize)); 2940 zdb_nicenum(zb->zb_psize, psize, 2941 sizeof (psize)); 2942 zdb_nicenum(zb->zb_asize, asize, 2943 sizeof (asize)); 2944 zdb_nicenum(zb->zb_asize / zb->zb_count, avg, 2945 sizeof (avg)); 2946 zdb_nicenum(zb->zb_gangs, gang, sizeof (gang)); 2947 2948 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 2949 "\t%5.2f\t%6.2f\t", 2950 csize, lsize, psize, asize, avg, 2951 (double)zb->zb_lsize / zb->zb_psize, 2952 100.0 * zb->zb_asize / tzb->zb_asize); 2953 2954 if (level == ZB_TOTAL) 2955 (void) printf("%s\n", typename); 2956 else 2957 (void) printf(" L%d %s\n", 2958 level, typename); 2959 2960 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { 2961 (void) printf("\t number of ganged " 2962 "blocks: %s\n", gang); 2963 } 2964 2965 if (dump_opt['b'] >= 4) { 2966 (void) printf("psize " 2967 "(in 512-byte sectors): " 2968 "number of blocks\n"); 2969 dump_histogram(zb->zb_psize_histogram, 2970 PSIZE_HISTO_SIZE, 0); 2971 } 2972 } 2973 } 2974 } 2975 2976 (void) printf("\n"); 2977 2978 if (leaks) 2979 return (2); 2980 2981 if (zcb.zcb_haderrors) 2982 return (3); 2983 2984 return (0); 2985} 2986 2987typedef struct zdb_ddt_entry { 2988 ddt_key_t zdde_key; 2989 uint64_t zdde_ref_blocks; 2990 uint64_t zdde_ref_lsize; 2991 uint64_t zdde_ref_psize; 2992 uint64_t zdde_ref_dsize; 2993 avl_node_t zdde_node; 2994} zdb_ddt_entry_t; 2995 2996/* ARGSUSED */ 2997static int 2998zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2999 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 3000{ 3001 avl_tree_t *t = arg; 3002 avl_index_t where; 3003 zdb_ddt_entry_t *zdde, zdde_search; 3004 3005 if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp)) 3006 return (0); 3007 3008 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 3009 (void) printf("traversing objset %llu, %llu objects, " 3010 "%lu blocks so far\n", 3011 (u_longlong_t)zb->zb_objset, 3012 (u_longlong_t)BP_GET_FILL(bp), 3013 avl_numnodes(t)); 3014 } 3015 3016 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 3017 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 3018 return (0); 3019 3020 ddt_key_fill(&zdde_search.zdde_key, bp); 3021 3022 zdde = avl_find(t, &zdde_search, &where); 3023 3024 if (zdde == NULL) { 3025 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 3026 zdde->zdde_key = zdde_search.zdde_key; 3027 avl_insert(t, zdde, where); 3028 } 3029 3030 zdde->zdde_ref_blocks += 1; 3031 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 3032 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 3033 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 3034 3035 return (0); 3036} 3037 3038static void 3039dump_simulated_ddt(spa_t *spa) 3040{ 3041 avl_tree_t t; 3042 void *cookie = NULL; 3043 zdb_ddt_entry_t *zdde; 3044 ddt_histogram_t ddh_total = { 0 }; 3045 ddt_stat_t dds_total = { 0 }; 3046 3047 avl_create(&t, ddt_entry_compare, 3048 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 3049 3050 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 3051 3052 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, 3053 zdb_ddt_add_cb, &t); 3054 3055 spa_config_exit(spa, SCL_CONFIG, FTAG); 3056 3057 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 3058 ddt_stat_t dds; 3059 uint64_t refcnt = zdde->zdde_ref_blocks; 3060 ASSERT(refcnt != 0); 3061 3062 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 3063 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 3064 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 3065 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 3066 3067 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 3068 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 3069 dds.dds_ref_psize = zdde->zdde_ref_psize; 3070 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 3071 3072 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1], 3073 &dds, 0); 3074 3075 umem_free(zdde, sizeof (*zdde)); 3076 } 3077 3078 avl_destroy(&t); 3079 3080 ddt_histogram_stat(&dds_total, &ddh_total); 3081 3082 (void) printf("Simulated DDT histogram:\n"); 3083 3084 zpool_dump_ddt(&dds_total, &ddh_total); 3085 3086 dump_dedup_ratio(&dds_total); 3087} 3088 3089static void 3090dump_zpool(spa_t *spa) 3091{ 3092 dsl_pool_t *dp = spa_get_dsl(spa); 3093 int rc = 0; 3094 3095 if (dump_opt['S']) { 3096 dump_simulated_ddt(spa); 3097 return; 3098 } 3099 3100 if (!dump_opt['e'] && dump_opt['C'] > 1) { 3101 (void) printf("\nCached configuration:\n"); 3102 dump_nvlist(spa->spa_config, 8); 3103 } 3104 3105 if (dump_opt['C']) 3106 dump_config(spa); 3107 3108 if (dump_opt['u']) 3109 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 3110 3111 if (dump_opt['D']) 3112 dump_all_ddts(spa); 3113 3114 if (dump_opt['d'] > 2 || dump_opt['m']) 3115 dump_metaslabs(spa); 3116 if (dump_opt['M']) 3117 dump_metaslab_groups(spa); 3118 3119 if (dump_opt['d'] || dump_opt['i']) { 3120 dump_dir(dp->dp_meta_objset); 3121 if (dump_opt['d'] >= 3) { 3122 dump_full_bpobj(&spa->spa_deferred_bpobj, 3123 "Deferred frees", 0); 3124 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 3125 dump_full_bpobj( 3126 &spa->spa_dsl_pool->dp_free_bpobj, 3127 "Pool snapshot frees", 0); 3128 } 3129 3130 if (spa_feature_is_active(spa, 3131 SPA_FEATURE_ASYNC_DESTROY)) { 3132 dump_bptree(spa->spa_meta_objset, 3133 spa->spa_dsl_pool->dp_bptree_obj, 3134 "Pool dataset frees"); 3135 } 3136 dump_dtl(spa->spa_root_vdev, 0); 3137 } 3138 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 3139 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 3140 3141 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) { 3142 uint64_t refcount; 3143 3144 if (!(spa_feature_table[f].fi_flags & 3145 ZFEATURE_FLAG_PER_DATASET)) { 3146 ASSERT0(dataset_feature_count[f]); 3147 continue; 3148 } 3149 (void) feature_get_refcount(spa, 3150 &spa_feature_table[f], &refcount); 3151 if (dataset_feature_count[f] != refcount) { 3152 (void) printf("%s feature refcount mismatch: " 3153 "%lld datasets != %lld refcount\n", 3154 spa_feature_table[f].fi_uname, 3155 (longlong_t)dataset_feature_count[f], 3156 (longlong_t)refcount); 3157 rc = 2; 3158 } else { 3159 (void) printf("Verified %s feature refcount " 3160 "of %llu is correct\n", 3161 spa_feature_table[f].fi_uname, 3162 (longlong_t)refcount); 3163 } 3164 } 3165 } 3166 if (rc == 0 && (dump_opt['b'] || dump_opt['c'])) 3167 rc = dump_block_stats(spa); 3168 3169 if (rc == 0) 3170 rc = verify_spacemap_refcounts(spa); 3171 3172 if (dump_opt['s']) 3173 show_pool_stats(spa); 3174 3175 if (dump_opt['h']) 3176 dump_history(spa); 3177 3178 if (rc != 0) { 3179 dump_debug_buffer(); 3180 exit(rc); 3181 } 3182} 3183 3184#define ZDB_FLAG_CHECKSUM 0x0001 3185#define ZDB_FLAG_DECOMPRESS 0x0002 3186#define ZDB_FLAG_BSWAP 0x0004 3187#define ZDB_FLAG_GBH 0x0008 3188#define ZDB_FLAG_INDIRECT 0x0010 3189#define ZDB_FLAG_PHYS 0x0020 3190#define ZDB_FLAG_RAW 0x0040 3191#define ZDB_FLAG_PRINT_BLKPTR 0x0080 3192 3193int flagbits[256]; 3194 3195static void 3196zdb_print_blkptr(blkptr_t *bp, int flags) 3197{ 3198 char blkbuf[BP_SPRINTF_LEN]; 3199 3200 if (flags & ZDB_FLAG_BSWAP) 3201 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 3202 3203 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 3204 (void) printf("%s\n", blkbuf); 3205} 3206 3207static void 3208zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 3209{ 3210 int i; 3211 3212 for (i = 0; i < nbps; i++) 3213 zdb_print_blkptr(&bp[i], flags); 3214} 3215 3216static void 3217zdb_dump_gbh(void *buf, int flags) 3218{ 3219 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 3220} 3221 3222static void 3223zdb_dump_block_raw(void *buf, uint64_t size, int flags) 3224{ 3225 if (flags & ZDB_FLAG_BSWAP) 3226 byteswap_uint64_array(buf, size); 3227 (void) write(1, buf, size); 3228} 3229 3230static void 3231zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 3232{ 3233 uint64_t *d = (uint64_t *)buf; 3234 int nwords = size / sizeof (uint64_t); 3235 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 3236 int i, j; 3237 char *hdr, *c; 3238 3239 3240 if (do_bswap) 3241 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 3242 else 3243 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 3244 3245 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 3246 3247 for (i = 0; i < nwords; i += 2) { 3248 (void) printf("%06llx: %016llx %016llx ", 3249 (u_longlong_t)(i * sizeof (uint64_t)), 3250 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 3251 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 3252 3253 c = (char *)&d[i]; 3254 for (j = 0; j < 2 * sizeof (uint64_t); j++) 3255 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 3256 (void) printf("\n"); 3257 } 3258} 3259 3260/* 3261 * There are two acceptable formats: 3262 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 3263 * child[.child]* - For example: 0.1.1 3264 * 3265 * The second form can be used to specify arbitrary vdevs anywhere 3266 * in the heirarchy. For example, in a pool with a mirror of 3267 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 3268 */ 3269static vdev_t * 3270zdb_vdev_lookup(vdev_t *vdev, char *path) 3271{ 3272 char *s, *p, *q; 3273 int i; 3274 3275 if (vdev == NULL) 3276 return (NULL); 3277 3278 /* First, assume the x.x.x.x format */ 3279 i = (int)strtoul(path, &s, 10); 3280 if (s == path || (s && *s != '.' && *s != '\0')) 3281 goto name; 3282 if (i < 0 || i >= vdev->vdev_children) 3283 return (NULL); 3284 3285 vdev = vdev->vdev_child[i]; 3286 if (*s == '\0') 3287 return (vdev); 3288 return (zdb_vdev_lookup(vdev, s+1)); 3289 3290name: 3291 for (i = 0; i < vdev->vdev_children; i++) { 3292 vdev_t *vc = vdev->vdev_child[i]; 3293 3294 if (vc->vdev_path == NULL) { 3295 vc = zdb_vdev_lookup(vc, path); 3296 if (vc == NULL) 3297 continue; 3298 else 3299 return (vc); 3300 } 3301 3302 p = strrchr(vc->vdev_path, '/'); 3303 p = p ? p + 1 : vc->vdev_path; 3304 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 3305 3306 if (strcmp(vc->vdev_path, path) == 0) 3307 return (vc); 3308 if (strcmp(p, path) == 0) 3309 return (vc); 3310 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 3311 return (vc); 3312 } 3313 3314 return (NULL); 3315} 3316 3317/* 3318 * Read a block from a pool and print it out. The syntax of the 3319 * block descriptor is: 3320 * 3321 * pool:vdev_specifier:offset:size[:flags] 3322 * 3323 * pool - The name of the pool you wish to read from 3324 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 3325 * offset - offset, in hex, in bytes 3326 * size - Amount of data to read, in hex, in bytes 3327 * flags - A string of characters specifying options 3328 * b: Decode a blkptr at given offset within block 3329 * *c: Calculate and display checksums 3330 * d: Decompress data before dumping 3331 * e: Byteswap data before dumping 3332 * g: Display data as a gang block header 3333 * i: Display as an indirect block 3334 * p: Do I/O to physical offset 3335 * r: Dump raw data to stdout 3336 * 3337 * * = not yet implemented 3338 */ 3339static void 3340zdb_read_block(char *thing, spa_t *spa) 3341{ 3342 blkptr_t blk, *bp = &blk; 3343 dva_t *dva = bp->blk_dva; 3344 int flags = 0; 3345 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 3346 zio_t *zio; 3347 vdev_t *vd; 3348 void *pbuf, *lbuf, *buf; 3349 char *s, *p, *dup, *vdev, *flagstr; 3350 int i, error; 3351 3352 dup = strdup(thing); 3353 s = strtok(dup, ":"); 3354 vdev = s ? s : ""; 3355 s = strtok(NULL, ":"); 3356 offset = strtoull(s ? s : "", NULL, 16); 3357 s = strtok(NULL, ":"); 3358 size = strtoull(s ? s : "", NULL, 16); 3359 s = strtok(NULL, ":"); 3360 flagstr = s ? s : ""; 3361 3362 s = NULL; 3363 if (size == 0) 3364 s = "size must not be zero"; 3365 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 3366 s = "size must be a multiple of sector size"; 3367 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 3368 s = "offset must be a multiple of sector size"; 3369 if (s) { 3370 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 3371 free(dup); 3372 return; 3373 } 3374 3375 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 3376 for (i = 0; flagstr[i]; i++) { 3377 int bit = flagbits[(uchar_t)flagstr[i]]; 3378 3379 if (bit == 0) { 3380 (void) printf("***Invalid flag: %c\n", 3381 flagstr[i]); 3382 continue; 3383 } 3384 flags |= bit; 3385 3386 /* If it's not something with an argument, keep going */ 3387 if ((bit & (ZDB_FLAG_CHECKSUM | 3388 ZDB_FLAG_PRINT_BLKPTR)) == 0) 3389 continue; 3390 3391 p = &flagstr[i + 1]; 3392 if (bit == ZDB_FLAG_PRINT_BLKPTR) 3393 blkptr_offset = strtoull(p, &p, 16); 3394 if (*p != ':' && *p != '\0') { 3395 (void) printf("***Invalid flag arg: '%s'\n", s); 3396 free(dup); 3397 return; 3398 } 3399 i += p - &flagstr[i + 1]; /* skip over the number */ 3400 } 3401 } 3402 3403 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 3404 if (vd == NULL) { 3405 (void) printf("***Invalid vdev: %s\n", vdev); 3406 free(dup); 3407 return; 3408 } else { 3409 if (vd->vdev_path) 3410 (void) fprintf(stderr, "Found vdev: %s\n", 3411 vd->vdev_path); 3412 else 3413 (void) fprintf(stderr, "Found vdev type: %s\n", 3414 vd->vdev_ops->vdev_op_type); 3415 } 3416 3417 psize = size; 3418 lsize = size; 3419 3420 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3421 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3422 3423 BP_ZERO(bp); 3424 3425 DVA_SET_VDEV(&dva[0], vd->vdev_id); 3426 DVA_SET_OFFSET(&dva[0], offset); 3427 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 3428 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 3429 3430 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 3431 3432 BP_SET_LSIZE(bp, lsize); 3433 BP_SET_PSIZE(bp, psize); 3434 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 3435 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 3436 BP_SET_TYPE(bp, DMU_OT_NONE); 3437 BP_SET_LEVEL(bp, 0); 3438 BP_SET_DEDUP(bp, 0); 3439 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 3440 3441 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 3442 zio = zio_root(spa, NULL, NULL, 0); 3443 3444 if (vd == vd->vdev_top) { 3445 /* 3446 * Treat this as a normal block read. 3447 */ 3448 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL, 3449 ZIO_PRIORITY_SYNC_READ, 3450 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 3451 } else { 3452 /* 3453 * Treat this as a vdev child I/O. 3454 */ 3455 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize, 3456 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 3457 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 3458 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 3459 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL)); 3460 } 3461 3462 error = zio_wait(zio); 3463 spa_config_exit(spa, SCL_STATE, FTAG); 3464 3465 if (error) { 3466 (void) printf("Read of %s failed, error: %d\n", thing, error); 3467 goto out; 3468 } 3469 3470 if (flags & ZDB_FLAG_DECOMPRESS) { 3471 /* 3472 * We don't know how the data was compressed, so just try 3473 * every decompress function at every inflated blocksize. 3474 */ 3475 enum zio_compress c; 3476 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3477 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3478 3479 bcopy(pbuf, pbuf2, psize); 3480 3481 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize, 3482 SPA_MAXBLOCKSIZE - psize) == 0); 3483 3484 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 3485 SPA_MAXBLOCKSIZE - psize) == 0); 3486 3487 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 3488 lsize -= SPA_MINBLOCKSIZE) { 3489 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 3490 if (zio_decompress_data(c, pbuf, lbuf, 3491 psize, lsize) == 0 && 3492 zio_decompress_data(c, pbuf2, lbuf2, 3493 psize, lsize) == 0 && 3494 bcmp(lbuf, lbuf2, lsize) == 0) 3495 break; 3496 } 3497 if (c != ZIO_COMPRESS_FUNCTIONS) 3498 break; 3499 lsize -= SPA_MINBLOCKSIZE; 3500 } 3501 3502 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 3503 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 3504 3505 if (lsize <= psize) { 3506 (void) printf("Decompress of %s failed\n", thing); 3507 goto out; 3508 } 3509 buf = lbuf; 3510 size = lsize; 3511 } else { 3512 buf = pbuf; 3513 size = psize; 3514 } 3515 3516 if (flags & ZDB_FLAG_PRINT_BLKPTR) 3517 zdb_print_blkptr((blkptr_t *)(void *) 3518 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 3519 else if (flags & ZDB_FLAG_RAW) 3520 zdb_dump_block_raw(buf, size, flags); 3521 else if (flags & ZDB_FLAG_INDIRECT) 3522 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 3523 flags); 3524 else if (flags & ZDB_FLAG_GBH) 3525 zdb_dump_gbh(buf, flags); 3526 else 3527 zdb_dump_block(thing, buf, size, flags); 3528 3529out: 3530 umem_free(pbuf, SPA_MAXBLOCKSIZE); 3531 umem_free(lbuf, SPA_MAXBLOCKSIZE); 3532 free(dup); 3533} 3534 3535static boolean_t 3536pool_match(nvlist_t *cfg, char *tgt) 3537{ 3538 uint64_t v, guid = strtoull(tgt, NULL, 0); 3539 char *s; 3540 3541 if (guid != 0) { 3542 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) 3543 return (v == guid); 3544 } else { 3545 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) 3546 return (strcmp(s, tgt) == 0); 3547 } 3548 return (B_FALSE); 3549} 3550 3551static char * 3552find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) 3553{ 3554 nvlist_t *pools; 3555 nvlist_t *match = NULL; 3556 char *name = NULL; 3557 char *sepp = NULL; 3558 char sep = '\0'; 3559 int count = 0; 3560 importargs_t args = { 0 }; 3561 3562 args.paths = dirc; 3563 args.path = dirv; 3564 args.can_be_active = B_TRUE; 3565 3566 if ((sepp = strpbrk(*target, "/@")) != NULL) { 3567 sep = *sepp; 3568 *sepp = '\0'; 3569 } 3570 3571 pools = zpool_search_import(g_zfs, &args); 3572 3573 if (pools != NULL) { 3574 nvpair_t *elem = NULL; 3575 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 3576 verify(nvpair_value_nvlist(elem, configp) == 0); 3577 if (pool_match(*configp, *target)) { 3578 count++; 3579 if (match != NULL) { 3580 /* print previously found config */ 3581 if (name != NULL) { 3582 (void) printf("%s\n", name); 3583 dump_nvlist(match, 8); 3584 name = NULL; 3585 } 3586 (void) printf("%s\n", 3587 nvpair_name(elem)); 3588 dump_nvlist(*configp, 8); 3589 } else { 3590 match = *configp; 3591 name = nvpair_name(elem); 3592 } 3593 } 3594 } 3595 } 3596 if (count > 1) 3597 (void) fatal("\tMatched %d pools - use pool GUID " 3598 "instead of pool name or \n" 3599 "\tpool name part of a dataset name to select pool", count); 3600 3601 if (sepp) 3602 *sepp = sep; 3603 /* 3604 * If pool GUID was specified for pool id, replace it with pool name 3605 */ 3606 if (name && (strstr(*target, name) != *target)) { 3607 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); 3608 3609 *target = umem_alloc(sz, UMEM_NOFAIL); 3610 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); 3611 } 3612 3613 *configp = name ? match : NULL; 3614 3615 return (name); 3616} 3617 3618int 3619main(int argc, char **argv) 3620{ 3621 int i, c; 3622 struct rlimit rl = { 1024, 1024 }; 3623 spa_t *spa = NULL; 3624 objset_t *os = NULL; 3625 int dump_all = 1; 3626 int verbose = 0; 3627 int error = 0; 3628 char **searchdirs = NULL; 3629 int nsearch = 0; 3630 char *target; 3631 nvlist_t *policy = NULL; 3632 uint64_t max_txg = UINT64_MAX; 3633 int rewind = ZPOOL_NEVER_REWIND; 3634 char *spa_config_path_env; 3635 boolean_t target_is_spa = B_TRUE; 3636 3637 (void) setrlimit(RLIMIT_NOFILE, &rl); 3638 (void) enable_extended_FILE_stdio(-1, -1); 3639 3640 dprintf_setup(&argc, argv); 3641 3642 /* 3643 * If there is an environment variable SPA_CONFIG_PATH it overrides 3644 * default spa_config_path setting. If -U flag is specified it will 3645 * override this environment variable settings once again. 3646 */ 3647 spa_config_path_env = getenv("SPA_CONFIG_PATH"); 3648 if (spa_config_path_env != NULL) 3649 spa_config_path = spa_config_path_env; 3650 3651 while ((c = getopt(argc, argv, 3652 "bcdhilmMI:suCDRSAFLXx:evp:t:U:PG")) != -1) { 3653 switch (c) { 3654 case 'b': 3655 case 'c': 3656 case 'd': 3657 case 'h': 3658 case 'i': 3659 case 'l': 3660 case 'm': 3661 case 's': 3662 case 'u': 3663 case 'C': 3664 case 'D': 3665 case 'M': 3666 case 'R': 3667 case 'S': 3668 case 'G': 3669 dump_opt[c]++; 3670 dump_all = 0; 3671 break; 3672 case 'A': 3673 case 'F': 3674 case 'L': 3675 case 'X': 3676 case 'e': 3677 case 'P': 3678 dump_opt[c]++; 3679 break; 3680 case 'I': 3681 max_inflight = strtoull(optarg, NULL, 0); 3682 if (max_inflight == 0) { 3683 (void) fprintf(stderr, "maximum number " 3684 "of inflight I/Os must be greater " 3685 "than 0\n"); 3686 usage(); 3687 } 3688 break; 3689 case 'p': 3690 if (searchdirs == NULL) { 3691 searchdirs = umem_alloc(sizeof (char *), 3692 UMEM_NOFAIL); 3693 } else { 3694 char **tmp = umem_alloc((nsearch + 1) * 3695 sizeof (char *), UMEM_NOFAIL); 3696 bcopy(searchdirs, tmp, nsearch * 3697 sizeof (char *)); 3698 umem_free(searchdirs, 3699 nsearch * sizeof (char *)); 3700 searchdirs = tmp; 3701 } 3702 searchdirs[nsearch++] = optarg; 3703 break; 3704 case 't': 3705 max_txg = strtoull(optarg, NULL, 0); 3706 if (max_txg < TXG_INITIAL) { 3707 (void) fprintf(stderr, "incorrect txg " 3708 "specified: %s\n", optarg); 3709 usage(); 3710 } 3711 break; 3712 case 'U': 3713 spa_config_path = optarg; 3714 break; 3715 case 'v': 3716 verbose++; 3717 break; 3718 case 'x': 3719 vn_dumpdir = optarg; 3720 break; 3721 default: 3722 usage(); 3723 break; 3724 } 3725 } 3726 3727 if (!dump_opt['e'] && searchdirs != NULL) { 3728 (void) fprintf(stderr, "-p option requires use of -e\n"); 3729 usage(); 3730 } 3731 3732 /* 3733 * ZDB does not typically re-read blocks; therefore limit the ARC 3734 * to 256 MB, which can be used entirely for metadata. 3735 */ 3736 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024; 3737 3738 /* 3739 * "zdb -c" uses checksum-verifying scrub i/os which are async reads. 3740 * "zdb -b" uses traversal prefetch which uses async reads. 3741 * For good performance, let several of them be active at once. 3742 */ 3743 zfs_vdev_async_read_max_active = 10; 3744 3745 kernel_init(FREAD); 3746 g_zfs = libzfs_init(); 3747 if (g_zfs == NULL) 3748 fatal("Fail to initialize zfs"); 3749 3750 if (dump_all) 3751 verbose = MAX(verbose, 1); 3752 3753 for (c = 0; c < 256; c++) { 3754 if (dump_all && !strchr("elAFLRSXP", c)) 3755 dump_opt[c] = 1; 3756 if (dump_opt[c]) 3757 dump_opt[c] += verbose; 3758 } 3759 3760 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 3761 zfs_recover = (dump_opt['A'] > 1); 3762 3763 argc -= optind; 3764 argv += optind; 3765 3766 if (argc < 2 && dump_opt['R']) 3767 usage(); 3768 if (argc < 1) { 3769 if (!dump_opt['e'] && dump_opt['C']) { 3770 dump_cachefile(spa_config_path); 3771 return (0); 3772 } 3773 usage(); 3774 } 3775 3776 if (dump_opt['l']) { 3777 dump_label(argv[0]); 3778 return (0); 3779 } 3780 3781 if (dump_opt['X'] || dump_opt['F']) 3782 rewind = ZPOOL_DO_REWIND | 3783 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 3784 3785 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 3786 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 || 3787 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0) 3788 fatal("internal error: %s", strerror(ENOMEM)); 3789 3790 error = 0; 3791 target = argv[0]; 3792 3793 if (dump_opt['e']) { 3794 nvlist_t *cfg = NULL; 3795 char *name = find_zpool(&target, &cfg, nsearch, searchdirs); 3796 3797 error = ENOENT; 3798 if (name) { 3799 if (dump_opt['C'] > 1) { 3800 (void) printf("\nConfiguration for import:\n"); 3801 dump_nvlist(cfg, 8); 3802 } 3803 if (nvlist_add_nvlist(cfg, 3804 ZPOOL_REWIND_POLICY, policy) != 0) { 3805 fatal("can't open '%s': %s", 3806 target, strerror(ENOMEM)); 3807 } 3808 if ((error = spa_import(name, cfg, NULL, 3809 ZFS_IMPORT_MISSING_LOG)) != 0) { 3810 error = spa_import(name, cfg, NULL, 3811 ZFS_IMPORT_VERBATIM); 3812 } 3813 } 3814 } 3815 3816 if (strpbrk(target, "/@") != NULL) { 3817 size_t targetlen; 3818 3819 target_is_spa = B_FALSE; 3820 /* 3821 * Remove any trailing slash. Later code would get confused 3822 * by it, but we want to allow it so that "pool/" can 3823 * indicate that we want to dump the topmost filesystem, 3824 * rather than the whole pool. 3825 */ 3826 targetlen = strlen(target); 3827 if (targetlen != 0 && target[targetlen - 1] == '/') 3828 target[targetlen - 1] = '\0'; 3829 } 3830 3831 if (error == 0) { 3832 if (target_is_spa || dump_opt['R']) { 3833 error = spa_open_rewind(target, &spa, FTAG, policy, 3834 NULL); 3835 if (error) { 3836 /* 3837 * If we're missing the log device then 3838 * try opening the pool after clearing the 3839 * log state. 3840 */ 3841 mutex_enter(&spa_namespace_lock); 3842 if ((spa = spa_lookup(target)) != NULL && 3843 spa->spa_log_state == SPA_LOG_MISSING) { 3844 spa->spa_log_state = SPA_LOG_CLEAR; 3845 error = 0; 3846 } 3847 mutex_exit(&spa_namespace_lock); 3848 3849 if (!error) { 3850 error = spa_open_rewind(target, &spa, 3851 FTAG, policy, NULL); 3852 } 3853 } 3854 } else { 3855 error = dmu_objset_own(target, DMU_OST_ANY, 3856 B_TRUE, FTAG, &os); 3857 } 3858 } 3859 nvlist_free(policy); 3860 3861 if (error) 3862 fatal("can't open '%s': %s", target, strerror(error)); 3863 3864 argv++; 3865 argc--; 3866 if (!dump_opt['R']) { 3867 if (argc > 0) { 3868 zopt_objects = argc; 3869 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 3870 for (i = 0; i < zopt_objects; i++) { 3871 errno = 0; 3872 zopt_object[i] = strtoull(argv[i], NULL, 0); 3873 if (zopt_object[i] == 0 && errno != 0) 3874 fatal("bad number %s: %s", 3875 argv[i], strerror(errno)); 3876 } 3877 } 3878 if (os != NULL) { 3879 dump_dir(os); 3880 } else if (zopt_objects > 0 && !dump_opt['m']) { 3881 dump_dir(spa->spa_meta_objset); 3882 } else { 3883 dump_zpool(spa); 3884 } 3885 } else { 3886 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 3887 flagbits['c'] = ZDB_FLAG_CHECKSUM; 3888 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 3889 flagbits['e'] = ZDB_FLAG_BSWAP; 3890 flagbits['g'] = ZDB_FLAG_GBH; 3891 flagbits['i'] = ZDB_FLAG_INDIRECT; 3892 flagbits['p'] = ZDB_FLAG_PHYS; 3893 flagbits['r'] = ZDB_FLAG_RAW; 3894 3895 for (i = 0; i < argc; i++) 3896 zdb_read_block(argv[i], spa); 3897 } 3898 3899 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG); 3900 3901 fuid_table_destroy(); 3902 sa_loaded = B_FALSE; 3903 3904 dump_debug_buffer(); 3905 3906 libzfs_fini(g_zfs); 3907 kernel_fini(); 3908 3909 return (0); 3910} 3911