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