diff options
Diffstat (limited to 'cddl/contrib/opensolaris/cmd/zdb/zdb.c')
| -rw-r--r-- | cddl/contrib/opensolaris/cmd/zdb/zdb.c | 5749 |
1 files changed, 0 insertions, 5749 deletions
diff --git a/cddl/contrib/opensolaris/cmd/zdb/zdb.c b/cddl/contrib/opensolaris/cmd/zdb/zdb.c deleted file mode 100644 index d51ddc68908cf..0000000000000 --- a/cddl/contrib/opensolaris/cmd/zdb/zdb.c +++ /dev/null @@ -1,5749 +0,0 @@ -/* - * CDDL HEADER START - * - * The contents of this file are subject to the terms of the - * Common Development and Distribution License (the "License"). - * You may not use this file except in compliance with the License. - * - * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE - * or http://www.opensolaris.org/os/licensing. - * See the License for the specific language governing permissions - * and limitations under the License. - * - * When distributing Covered Code, include this CDDL HEADER in each - * file and include the License file at usr/src/OPENSOLARIS.LICENSE. - * If applicable, add the following below this CDDL HEADER, with the - * fields enclosed by brackets "[]" replaced with your own identifying - * information: Portions Copyright [yyyy] [name of copyright owner] - * - * CDDL HEADER END - */ - -/* - * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. - * Copyright (c) 2011, 2018 by Delphix. All rights reserved. - * Copyright (c) 2014 Integros [integros.com] - * Copyright 2017 Nexenta Systems, Inc. - * Copyright (c) 2017, 2018 Lawrence Livermore National Security, LLC. - * Copyright 2017 RackTop Systems. - */ - -#include <stdio.h> -#include <unistd.h> -#include <stdio_ext.h> -#include <stdlib.h> -#include <ctype.h> -#include <sys/zfs_context.h> -#include <sys/spa.h> -#include <sys/spa_impl.h> -#include <sys/dmu.h> -#include <sys/zap.h> -#include <sys/fs/zfs.h> -#include <sys/zfs_znode.h> -#include <sys/zfs_sa.h> -#include <sys/sa.h> -#include <sys/sa_impl.h> -#include <sys/vdev.h> -#include <sys/vdev_impl.h> -#include <sys/metaslab_impl.h> -#include <sys/dmu_objset.h> -#include <sys/dsl_dir.h> -#include <sys/dsl_dataset.h> -#include <sys/dsl_pool.h> -#include <sys/dbuf.h> -#include <sys/zil.h> -#include <sys/zil_impl.h> -#include <sys/stat.h> -#include <sys/resource.h> -#include <sys/dmu_traverse.h> -#include <sys/zio_checksum.h> -#include <sys/zio_compress.h> -#include <sys/zfs_fuid.h> -#include <sys/arc.h> -#include <sys/ddt.h> -#include <sys/zfeature.h> -#include <sys/abd.h> -#include <sys/blkptr.h> -#include <sys/dsl_scan.h> -#include <zfs_comutil.h> -#include <libcmdutils.h> -#undef verify -#include <libzfs.h> - -#include "zdb.h" - -#define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \ - zio_compress_table[(idx)].ci_name : "UNKNOWN") -#define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \ - zio_checksum_table[(idx)].ci_name : "UNKNOWN") -#define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \ - dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \ - dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN") -#define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \ - (idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA ? \ - DMU_OT_ZAP_OTHER : \ - (idx) == DMU_OTN_UINT64_DATA || (idx) == DMU_OTN_UINT64_METADATA ? \ - DMU_OT_UINT64_OTHER : DMU_OT_NUMTYPES) - -#ifndef lint -extern int reference_tracking_enable; -extern boolean_t zfs_recover; -extern uint64_t zfs_arc_max, zfs_arc_meta_limit; -extern int zfs_vdev_async_read_max_active; -extern boolean_t spa_load_verify_dryrun; -extern int aok; -#else -int reference_tracking_enable; -boolean_t zfs_recover; -uint64_t zfs_arc_max, zfs_arc_meta_limit; -int zfs_vdev_async_read_max_active; -boolean_t spa_load_verify_dryrun; -int aok; -#endif - -static const char cmdname[] = "zdb"; -uint8_t dump_opt[256]; - -typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size); - -static uint64_t *zopt_object = NULL; -static unsigned zopt_objects = 0; -static libzfs_handle_t *g_zfs; -static uint64_t max_inflight = 1000; -static int leaked_objects = 0; - -static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *); -static void mos_obj_refd(uint64_t); - -/* - * These libumem hooks provide a reasonable set of defaults for the allocator's - * debugging facilities. - */ -const char * -_umem_debug_init() -{ - return ("default,verbose"); /* $UMEM_DEBUG setting */ -} - -const char * -_umem_logging_init(void) -{ - return ("fail,contents"); /* $UMEM_LOGGING setting */ -} - -static void -usage(void) -{ - (void) fprintf(stderr, - "Usage:\t%s [-AbcdDFGhikLMPsvX] [-e [-V] [-p <path> ...]] " - "[-I <inflight I/Os>]\n" - "\t\t[-o <var>=<value>]... [-t <txg>] [-U <cache>] [-x <dumpdir>]\n" - "\t\t[<poolname> [<object> ...]]\n" - "\t%s [-AdiPv] [-e [-V] [-p <path> ...]] [-U <cache>] <dataset> " - "[<object> ...]\n" - "\t%s -C [-A] [-U <cache>]\n" - "\t%s -l [-Aqu] <device>\n" - "\t%s -m [-AFLPX] [-e [-V] [-p <path> ...]] [-t <txg>] " - "[-U <cache>]\n\t\t<poolname> [<vdev> [<metaslab> ...]]\n" - "\t%s -O <dataset> <path>\n" - "\t%s -R [-A] [-e [-V] [-p <path> ...]] [-U <cache>]\n" - "\t\t<poolname> <vdev>:<offset>:<size>[:<flags>]\n" - "\t%s -E [-A] word0:word1:...:word15\n" - "\t%s -S [-AP] [-e [-V] [-p <path> ...]] [-U <cache>] " - "<poolname>\n\n", - cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, - cmdname, cmdname); - - (void) fprintf(stderr, " Dataset name must include at least one " - "separator character '/' or '@'\n"); - (void) fprintf(stderr, " If dataset name is specified, only that " - "dataset is dumped\n"); - (void) fprintf(stderr, " If object numbers are specified, only " - "those objects are dumped\n\n"); - (void) fprintf(stderr, " Options to control amount of output:\n"); - (void) fprintf(stderr, " -b block statistics\n"); - (void) fprintf(stderr, " -c checksum all metadata (twice for " - "all data) blocks\n"); - (void) fprintf(stderr, " -C config (or cachefile if alone)\n"); - (void) fprintf(stderr, " -d dataset(s)\n"); - (void) fprintf(stderr, " -D dedup statistics\n"); - (void) fprintf(stderr, " -E decode and display block from an " - "embedded block pointer\n"); - (void) fprintf(stderr, " -h pool history\n"); - (void) fprintf(stderr, " -i intent logs\n"); - (void) fprintf(stderr, " -l read label contents\n"); - (void) fprintf(stderr, " -k examine the checkpointed state " - "of the pool\n"); - (void) fprintf(stderr, " -L disable leak tracking (do not " - "load spacemaps)\n"); - (void) fprintf(stderr, " -m metaslabs\n"); - (void) fprintf(stderr, " -M metaslab groups\n"); - (void) fprintf(stderr, " -O perform object lookups by path\n"); - (void) fprintf(stderr, " -R read and display block from a " - "device\n"); - (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); - (void) fprintf(stderr, " -S simulate dedup to measure effect\n"); - (void) fprintf(stderr, " -v verbose (applies to all " - "others)\n\n"); - (void) fprintf(stderr, " Below options are intended for use " - "with other options:\n"); - (void) fprintf(stderr, " -A ignore assertions (-A), enable " - "panic recovery (-AA) or both (-AAA)\n"); - (void) fprintf(stderr, " -e pool is exported/destroyed/" - "has altroot/not in a cachefile\n"); - (void) fprintf(stderr, " -F attempt automatic rewind within " - "safe range of transaction groups\n"); - (void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before " - "exiting\n"); - (void) fprintf(stderr, " -I <number of inflight I/Os> -- " - "specify the maximum number of " - "checksumming I/Os [default is 200]\n"); - (void) fprintf(stderr, " -o <variable>=<value> set global " - "variable to an unsigned 32-bit integer value\n"); - (void) fprintf(stderr, " -p <path> -- use one or more with " - "-e to specify path to vdev dir\n"); - (void) fprintf(stderr, " -P print numbers in parseable form\n"); - (void) fprintf(stderr, " -q don't print label contents\n"); - (void) fprintf(stderr, " -t <txg> -- highest txg to use when " - "searching for uberblocks\n"); - (void) fprintf(stderr, " -u uberblock\n"); - (void) fprintf(stderr, " -U <cachefile_path> -- use alternate " - "cachefile\n"); - (void) fprintf(stderr, " -V do verbatim import\n"); - (void) fprintf(stderr, " -x <dumpdir> -- " - "dump all read blocks into specified directory\n"); - (void) fprintf(stderr, " -X attempt extreme rewind (does not " - "work with dataset)\n\n"); - (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " - "to make only that option verbose\n"); - (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); - exit(1); -} - -static void -dump_debug_buffer() -{ - if (dump_opt['G']) { - (void) printf("\n"); - zfs_dbgmsg_print("zdb"); - } -} - -/* - * Called for usage errors that are discovered after a call to spa_open(), - * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. - */ - -static void -fatal(const char *fmt, ...) -{ - va_list ap; - - va_start(ap, fmt); - (void) fprintf(stderr, "%s: ", cmdname); - (void) vfprintf(stderr, fmt, ap); - va_end(ap); - (void) fprintf(stderr, "\n"); - - dump_debug_buffer(); - - exit(1); -} - -/* ARGSUSED */ -static void -dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) -{ - nvlist_t *nv; - size_t nvsize = *(uint64_t *)data; - char *packed = umem_alloc(nvsize, UMEM_NOFAIL); - - VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH)); - - VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); - - umem_free(packed, nvsize); - - dump_nvlist(nv, 8); - - nvlist_free(nv); -} - -/* ARGSUSED */ -static void -dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size) -{ - spa_history_phys_t *shp = data; - - if (shp == NULL) - return; - - (void) printf("\t\tpool_create_len = %llu\n", - (u_longlong_t)shp->sh_pool_create_len); - (void) printf("\t\tphys_max_off = %llu\n", - (u_longlong_t)shp->sh_phys_max_off); - (void) printf("\t\tbof = %llu\n", - (u_longlong_t)shp->sh_bof); - (void) printf("\t\teof = %llu\n", - (u_longlong_t)shp->sh_eof); - (void) printf("\t\trecords_lost = %llu\n", - (u_longlong_t)shp->sh_records_lost); -} - -static void -zdb_nicenum(uint64_t num, char *buf, size_t buflen) -{ - if (dump_opt['P']) - (void) snprintf(buf, buflen, "%llu", (longlong_t)num); - else - nicenum(num, buf, sizeof (buf)); -} - -static const char histo_stars[] = "****************************************"; -static const uint64_t histo_width = sizeof (histo_stars) - 1; - -static void -dump_histogram(const uint64_t *histo, int size, int offset) -{ - int i; - int minidx = size - 1; - int maxidx = 0; - uint64_t max = 0; - - for (i = 0; i < size; i++) { - if (histo[i] > max) - max = histo[i]; - if (histo[i] > 0 && i > maxidx) - maxidx = i; - if (histo[i] > 0 && i < minidx) - minidx = i; - } - - if (max < histo_width) - max = histo_width; - - for (i = minidx; i <= maxidx; i++) { - (void) printf("\t\t\t%3u: %6llu %s\n", - i + offset, (u_longlong_t)histo[i], - &histo_stars[(max - histo[i]) * histo_width / max]); - } -} - -static void -dump_zap_stats(objset_t *os, uint64_t object) -{ - int error; - zap_stats_t zs; - - error = zap_get_stats(os, object, &zs); - if (error) - return; - - if (zs.zs_ptrtbl_len == 0) { - ASSERT(zs.zs_num_blocks == 1); - (void) printf("\tmicrozap: %llu bytes, %llu entries\n", - (u_longlong_t)zs.zs_blocksize, - (u_longlong_t)zs.zs_num_entries); - return; - } - - (void) printf("\tFat ZAP stats:\n"); - - (void) printf("\t\tPointer table:\n"); - (void) printf("\t\t\t%llu elements\n", - (u_longlong_t)zs.zs_ptrtbl_len); - (void) printf("\t\t\tzt_blk: %llu\n", - (u_longlong_t)zs.zs_ptrtbl_zt_blk); - (void) printf("\t\t\tzt_numblks: %llu\n", - (u_longlong_t)zs.zs_ptrtbl_zt_numblks); - (void) printf("\t\t\tzt_shift: %llu\n", - (u_longlong_t)zs.zs_ptrtbl_zt_shift); - (void) printf("\t\t\tzt_blks_copied: %llu\n", - (u_longlong_t)zs.zs_ptrtbl_blks_copied); - (void) printf("\t\t\tzt_nextblk: %llu\n", - (u_longlong_t)zs.zs_ptrtbl_nextblk); - - (void) printf("\t\tZAP entries: %llu\n", - (u_longlong_t)zs.zs_num_entries); - (void) printf("\t\tLeaf blocks: %llu\n", - (u_longlong_t)zs.zs_num_leafs); - (void) printf("\t\tTotal blocks: %llu\n", - (u_longlong_t)zs.zs_num_blocks); - (void) printf("\t\tzap_block_type: 0x%llx\n", - (u_longlong_t)zs.zs_block_type); - (void) printf("\t\tzap_magic: 0x%llx\n", - (u_longlong_t)zs.zs_magic); - (void) printf("\t\tzap_salt: 0x%llx\n", - (u_longlong_t)zs.zs_salt); - - (void) printf("\t\tLeafs with 2^n pointers:\n"); - dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0); - - (void) printf("\t\tBlocks with n*5 entries:\n"); - dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0); - - (void) printf("\t\tBlocks n/10 full:\n"); - dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0); - - (void) printf("\t\tEntries with n chunks:\n"); - dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0); - - (void) printf("\t\tBuckets with n entries:\n"); - dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0); -} - -/*ARGSUSED*/ -static void -dump_none(objset_t *os, uint64_t object, void *data, size_t size) -{ -} - -/*ARGSUSED*/ -static void -dump_unknown(objset_t *os, uint64_t object, void *data, size_t size) -{ - (void) printf("\tUNKNOWN OBJECT TYPE\n"); -} - -/*ARGSUSED*/ -static void -dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) -{ -} - -/*ARGSUSED*/ -static void -dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) -{ -} - -/*ARGSUSED*/ -static void -dump_zap(objset_t *os, uint64_t object, void *data, size_t size) -{ - zap_cursor_t zc; - zap_attribute_t attr; - void *prop; - unsigned i; - - dump_zap_stats(os, object); - (void) printf("\n"); - - for (zap_cursor_init(&zc, os, object); - zap_cursor_retrieve(&zc, &attr) == 0; - zap_cursor_advance(&zc)) { - (void) printf("\t\t%s = ", attr.za_name); - if (attr.za_num_integers == 0) { - (void) printf("\n"); - continue; - } - prop = umem_zalloc(attr.za_num_integers * - attr.za_integer_length, UMEM_NOFAIL); - (void) zap_lookup(os, object, attr.za_name, - attr.za_integer_length, attr.za_num_integers, prop); - if (attr.za_integer_length == 1) { - (void) printf("%s", (char *)prop); - } else { - for (i = 0; i < attr.za_num_integers; i++) { - switch (attr.za_integer_length) { - case 2: - (void) printf("%u ", - ((uint16_t *)prop)[i]); - break; - case 4: - (void) printf("%u ", - ((uint32_t *)prop)[i]); - break; - case 8: - (void) printf("%lld ", - (u_longlong_t)((int64_t *)prop)[i]); - break; - } - } - } - (void) printf("\n"); - umem_free(prop, attr.za_num_integers * attr.za_integer_length); - } - zap_cursor_fini(&zc); -} - -static void -dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size) -{ - bpobj_phys_t *bpop = data; - char bytes[32], comp[32], uncomp[32]; - - /* make sure the output won't get truncated */ - CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); - CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ); - CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ); - - if (bpop == NULL) - return; - - zdb_nicenum(bpop->bpo_bytes, bytes, sizeof (bytes)); - zdb_nicenum(bpop->bpo_comp, comp, sizeof (comp)); - zdb_nicenum(bpop->bpo_uncomp, uncomp, sizeof (uncomp)); - - (void) printf("\t\tnum_blkptrs = %llu\n", - (u_longlong_t)bpop->bpo_num_blkptrs); - (void) printf("\t\tbytes = %s\n", bytes); - if (size >= BPOBJ_SIZE_V1) { - (void) printf("\t\tcomp = %s\n", comp); - (void) printf("\t\tuncomp = %s\n", uncomp); - } - if (size >= sizeof (*bpop)) { - (void) printf("\t\tsubobjs = %llu\n", - (u_longlong_t)bpop->bpo_subobjs); - (void) printf("\t\tnum_subobjs = %llu\n", - (u_longlong_t)bpop->bpo_num_subobjs); - } - - if (dump_opt['d'] < 5) - return; - - for (uint64_t i = 0; i < bpop->bpo_num_blkptrs; i++) { - char blkbuf[BP_SPRINTF_LEN]; - blkptr_t bp; - - int err = dmu_read(os, object, - i * sizeof (bp), sizeof (bp), &bp, 0); - if (err != 0) { - (void) printf("got error %u from dmu_read\n", err); - break; - } - snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp); - (void) printf("\t%s\n", blkbuf); - } -} - -/* ARGSUSED */ -static void -dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size) -{ - dmu_object_info_t doi; - - VERIFY0(dmu_object_info(os, object, &doi)); - uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP); - - int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0); - if (err != 0) { - (void) printf("got error %u from dmu_read\n", err); - kmem_free(subobjs, doi.doi_max_offset); - return; - } - - int64_t last_nonzero = -1; - for (uint64_t i = 0; i < doi.doi_max_offset / 8; i++) { - if (subobjs[i] != 0) - last_nonzero = i; - } - - for (int64_t i = 0; i <= last_nonzero; i++) { - (void) printf("\t%llu\n", (longlong_t)subobjs[i]); - } - kmem_free(subobjs, doi.doi_max_offset); -} - -/*ARGSUSED*/ -static void -dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size) -{ - dump_zap_stats(os, object); - /* contents are printed elsewhere, properly decoded */ -} - -/*ARGSUSED*/ -static void -dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size) -{ - zap_cursor_t zc; - zap_attribute_t attr; - - dump_zap_stats(os, object); - (void) printf("\n"); - - for (zap_cursor_init(&zc, os, object); - zap_cursor_retrieve(&zc, &attr) == 0; - zap_cursor_advance(&zc)) { - (void) printf("\t\t%s = ", attr.za_name); - if (attr.za_num_integers == 0) { - (void) printf("\n"); - continue; - } - (void) printf(" %llx : [%d:%d:%d]\n", - (u_longlong_t)attr.za_first_integer, - (int)ATTR_LENGTH(attr.za_first_integer), - (int)ATTR_BSWAP(attr.za_first_integer), - (int)ATTR_NUM(attr.za_first_integer)); - } - zap_cursor_fini(&zc); -} - -/*ARGSUSED*/ -static void -dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size) -{ - zap_cursor_t zc; - zap_attribute_t attr; - uint16_t *layout_attrs; - unsigned i; - - dump_zap_stats(os, object); - (void) printf("\n"); - - for (zap_cursor_init(&zc, os, object); - zap_cursor_retrieve(&zc, &attr) == 0; - zap_cursor_advance(&zc)) { - (void) printf("\t\t%s = [", attr.za_name); - if (attr.za_num_integers == 0) { - (void) printf("\n"); - continue; - } - - VERIFY(attr.za_integer_length == 2); - layout_attrs = umem_zalloc(attr.za_num_integers * - attr.za_integer_length, UMEM_NOFAIL); - - VERIFY(zap_lookup(os, object, attr.za_name, - attr.za_integer_length, - attr.za_num_integers, layout_attrs) == 0); - - for (i = 0; i != attr.za_num_integers; i++) - (void) printf(" %d ", (int)layout_attrs[i]); - (void) printf("]\n"); - umem_free(layout_attrs, - attr.za_num_integers * attr.za_integer_length); - } - zap_cursor_fini(&zc); -} - -/*ARGSUSED*/ -static void -dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) -{ - zap_cursor_t zc; - zap_attribute_t attr; - const char *typenames[] = { - /* 0 */ "not specified", - /* 1 */ "FIFO", - /* 2 */ "Character Device", - /* 3 */ "3 (invalid)", - /* 4 */ "Directory", - /* 5 */ "5 (invalid)", - /* 6 */ "Block Device", - /* 7 */ "7 (invalid)", - /* 8 */ "Regular File", - /* 9 */ "9 (invalid)", - /* 10 */ "Symbolic Link", - /* 11 */ "11 (invalid)", - /* 12 */ "Socket", - /* 13 */ "Door", - /* 14 */ "Event Port", - /* 15 */ "15 (invalid)", - }; - - dump_zap_stats(os, object); - (void) printf("\n"); - - for (zap_cursor_init(&zc, os, object); - zap_cursor_retrieve(&zc, &attr) == 0; - zap_cursor_advance(&zc)) { - (void) printf("\t\t%s = %lld (type: %s)\n", - attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), - typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); - } - zap_cursor_fini(&zc); -} - -static int -get_dtl_refcount(vdev_t *vd) -{ - int refcount = 0; - - if (vd->vdev_ops->vdev_op_leaf) { - space_map_t *sm = vd->vdev_dtl_sm; - - if (sm != NULL && - sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) - return (1); - return (0); - } - - for (unsigned c = 0; c < vd->vdev_children; c++) - refcount += get_dtl_refcount(vd->vdev_child[c]); - return (refcount); -} - -static int -get_metaslab_refcount(vdev_t *vd) -{ - int refcount = 0; - - if (vd->vdev_top == vd) { - for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { - space_map_t *sm = vd->vdev_ms[m]->ms_sm; - - if (sm != NULL && - sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) - refcount++; - } - } - for (unsigned c = 0; c < vd->vdev_children; c++) - refcount += get_metaslab_refcount(vd->vdev_child[c]); - - return (refcount); -} - -static int -get_obsolete_refcount(vdev_t *vd) -{ - int refcount = 0; - - uint64_t obsolete_sm_obj = vdev_obsolete_sm_object(vd); - if (vd->vdev_top == vd && obsolete_sm_obj != 0) { - dmu_object_info_t doi; - VERIFY0(dmu_object_info(vd->vdev_spa->spa_meta_objset, - obsolete_sm_obj, &doi)); - if (doi.doi_bonus_size == sizeof (space_map_phys_t)) { - refcount++; - } - } else { - ASSERT3P(vd->vdev_obsolete_sm, ==, NULL); - ASSERT3U(obsolete_sm_obj, ==, 0); - } - for (unsigned c = 0; c < vd->vdev_children; c++) { - refcount += get_obsolete_refcount(vd->vdev_child[c]); - } - - return (refcount); -} - -static int -get_prev_obsolete_spacemap_refcount(spa_t *spa) -{ - uint64_t prev_obj = - spa->spa_condensing_indirect_phys.scip_prev_obsolete_sm_object; - if (prev_obj != 0) { - dmu_object_info_t doi; - VERIFY0(dmu_object_info(spa->spa_meta_objset, prev_obj, &doi)); - if (doi.doi_bonus_size == sizeof (space_map_phys_t)) { - return (1); - } - } - return (0); -} - -static int -get_checkpoint_refcount(vdev_t *vd) -{ - int refcount = 0; - - if (vd->vdev_top == vd && vd->vdev_top_zap != 0 && - zap_contains(spa_meta_objset(vd->vdev_spa), - vd->vdev_top_zap, VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) == 0) - refcount++; - - for (uint64_t c = 0; c < vd->vdev_children; c++) - refcount += get_checkpoint_refcount(vd->vdev_child[c]); - - return (refcount); -} - -static int -verify_spacemap_refcounts(spa_t *spa) -{ - uint64_t expected_refcount = 0; - uint64_t actual_refcount; - - (void) feature_get_refcount(spa, - &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM], - &expected_refcount); - actual_refcount = get_dtl_refcount(spa->spa_root_vdev); - actual_refcount += get_metaslab_refcount(spa->spa_root_vdev); - actual_refcount += get_obsolete_refcount(spa->spa_root_vdev); - actual_refcount += get_prev_obsolete_spacemap_refcount(spa); - actual_refcount += get_checkpoint_refcount(spa->spa_root_vdev); - - if (expected_refcount != actual_refcount) { - (void) printf("space map refcount mismatch: expected %lld != " - "actual %lld\n", - (longlong_t)expected_refcount, - (longlong_t)actual_refcount); - return (2); - } - return (0); -} - -static void -dump_spacemap(objset_t *os, space_map_t *sm) -{ - char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", - "INVALID", "INVALID", "INVALID", "INVALID" }; - - if (sm == NULL) - return; - - (void) printf("space map object %llu:\n", - (longlong_t)sm->sm_object); - (void) printf(" smp_length = 0x%llx\n", - (longlong_t)sm->sm_phys->smp_length); - (void) printf(" smp_alloc = 0x%llx\n", - (longlong_t)sm->sm_phys->smp_alloc); - - if (dump_opt['d'] < 6 && dump_opt['m'] < 4) - return; - - /* - * Print out the freelist entries in both encoded and decoded form. - */ - uint8_t mapshift = sm->sm_shift; - int64_t alloc = 0; - uint64_t word, entry_id = 0; - for (uint64_t offset = 0; offset < space_map_length(sm); - offset += sizeof (word)) { - - VERIFY0(dmu_read(os, space_map_object(sm), offset, - sizeof (word), &word, DMU_READ_PREFETCH)); - - if (sm_entry_is_debug(word)) { - (void) printf("\t [%6llu] %s: txg %llu pass %llu\n", - (u_longlong_t)entry_id, - ddata[SM_DEBUG_ACTION_DECODE(word)], - (u_longlong_t)SM_DEBUG_TXG_DECODE(word), - (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(word)); - entry_id++; - continue; - } - - uint8_t words; - char entry_type; - uint64_t entry_off, entry_run, entry_vdev = SM_NO_VDEVID; - - if (sm_entry_is_single_word(word)) { - entry_type = (SM_TYPE_DECODE(word) == SM_ALLOC) ? - 'A' : 'F'; - entry_off = (SM_OFFSET_DECODE(word) << mapshift) + - sm->sm_start; - entry_run = SM_RUN_DECODE(word) << mapshift; - words = 1; - } else { - /* it is a two-word entry so we read another word */ - ASSERT(sm_entry_is_double_word(word)); - - uint64_t extra_word; - offset += sizeof (extra_word); - VERIFY0(dmu_read(os, space_map_object(sm), offset, - sizeof (extra_word), &extra_word, - DMU_READ_PREFETCH)); - - ASSERT3U(offset, <=, space_map_length(sm)); - - entry_run = SM2_RUN_DECODE(word) << mapshift; - entry_vdev = SM2_VDEV_DECODE(word); - entry_type = (SM2_TYPE_DECODE(extra_word) == SM_ALLOC) ? - 'A' : 'F'; - entry_off = (SM2_OFFSET_DECODE(extra_word) << - mapshift) + sm->sm_start; - words = 2; - } - - (void) printf("\t [%6llu] %c range:" - " %010llx-%010llx size: %06llx vdev: %06llu words: %u\n", - (u_longlong_t)entry_id, - entry_type, (u_longlong_t)entry_off, - (u_longlong_t)(entry_off + entry_run), - (u_longlong_t)entry_run, - (u_longlong_t)entry_vdev, words); - - if (entry_type == 'A') - alloc += entry_run; - else - alloc -= entry_run; - entry_id++; - } - if (alloc != space_map_allocated(sm)) { - (void) printf("space_map_object alloc (%lld) INCONSISTENT " - "with space map summary (%lld)\n", - (longlong_t)space_map_allocated(sm), (longlong_t)alloc); - } -} - -static void -dump_metaslab_stats(metaslab_t *msp) -{ - char maxbuf[32]; - range_tree_t *rt = msp->ms_allocatable; - avl_tree_t *t = &msp->ms_allocatable_by_size; - int free_pct = range_tree_space(rt) * 100 / msp->ms_size; - - /* max sure nicenum has enough space */ - CTASSERT(sizeof (maxbuf) >= NN_NUMBUF_SZ); - - zdb_nicenum(metaslab_block_maxsize(msp), maxbuf, sizeof (maxbuf)); - - (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", - "segments", avl_numnodes(t), "maxsize", maxbuf, - "freepct", free_pct); - (void) printf("\tIn-memory histogram:\n"); - dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); -} - -static void -dump_metaslab(metaslab_t *msp) -{ - vdev_t *vd = msp->ms_group->mg_vd; - spa_t *spa = vd->vdev_spa; - space_map_t *sm = msp->ms_sm; - char freebuf[32]; - - zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf, - sizeof (freebuf)); - - (void) printf( - "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", - (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start, - (u_longlong_t)space_map_object(sm), freebuf); - - if (dump_opt['m'] > 2 && !dump_opt['L']) { - mutex_enter(&msp->ms_lock); - VERIFY0(metaslab_load(msp)); - range_tree_stat_verify(msp->ms_allocatable); - dump_metaslab_stats(msp); - metaslab_unload(msp); - mutex_exit(&msp->ms_lock); - } - - if (dump_opt['m'] > 1 && sm != NULL && - spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) { - /* - * The space map histogram represents free space in chunks - * of sm_shift (i.e. bucket 0 refers to 2^sm_shift). - */ - (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n", - (u_longlong_t)msp->ms_fragmentation); - dump_histogram(sm->sm_phys->smp_histogram, - SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift); - } - - ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift)); - dump_spacemap(spa->spa_meta_objset, msp->ms_sm); -} - -static void -print_vdev_metaslab_header(vdev_t *vd) -{ - vdev_alloc_bias_t alloc_bias = vd->vdev_alloc_bias; - const char *bias_str; - - bias_str = (alloc_bias == VDEV_BIAS_LOG || vd->vdev_islog) ? - VDEV_ALLOC_BIAS_LOG : - (alloc_bias == VDEV_BIAS_SPECIAL) ? VDEV_ALLOC_BIAS_SPECIAL : - (alloc_bias == VDEV_BIAS_DEDUP) ? VDEV_ALLOC_BIAS_DEDUP : - vd->vdev_islog ? "log" : ""; - - (void) printf("\tvdev %10llu %s\n" - "\t%-10s%5llu %-19s %-15s %-12s\n", - (u_longlong_t)vd->vdev_id, bias_str, - "metaslabs", (u_longlong_t)vd->vdev_ms_count, - "offset", "spacemap", "free"); - (void) printf("\t%15s %19s %15s %12s\n", - "---------------", "-------------------", - "---------------", "------------"); -} - -static void -dump_metaslab_groups(spa_t *spa) -{ - vdev_t *rvd = spa->spa_root_vdev; - metaslab_class_t *mc = spa_normal_class(spa); - uint64_t fragmentation; - - metaslab_class_histogram_verify(mc); - - for (unsigned c = 0; c < rvd->vdev_children; c++) { - vdev_t *tvd = rvd->vdev_child[c]; - metaslab_group_t *mg = tvd->vdev_mg; - - if (mg == NULL || mg->mg_class != mc) - continue; - - metaslab_group_histogram_verify(mg); - mg->mg_fragmentation = metaslab_group_fragmentation(mg); - - (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t" - "fragmentation", - (u_longlong_t)tvd->vdev_id, - (u_longlong_t)tvd->vdev_ms_count); - if (mg->mg_fragmentation == ZFS_FRAG_INVALID) { - (void) printf("%3s\n", "-"); - } else { - (void) printf("%3llu%%\n", - (u_longlong_t)mg->mg_fragmentation); - } - dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); - } - - (void) printf("\tpool %s\tfragmentation", spa_name(spa)); - fragmentation = metaslab_class_fragmentation(mc); - if (fragmentation == ZFS_FRAG_INVALID) - (void) printf("\t%3s\n", "-"); - else - (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation); - dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); -} - -static void -print_vdev_indirect(vdev_t *vd) -{ - vdev_indirect_config_t *vic = &vd->vdev_indirect_config; - vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; - vdev_indirect_births_t *vib = vd->vdev_indirect_births; - - if (vim == NULL) { - ASSERT3P(vib, ==, NULL); - return; - } - - ASSERT3U(vdev_indirect_mapping_object(vim), ==, - vic->vic_mapping_object); - ASSERT3U(vdev_indirect_births_object(vib), ==, - vic->vic_births_object); - - (void) printf("indirect births obj %llu:\n", - (longlong_t)vic->vic_births_object); - (void) printf(" vib_count = %llu\n", - (longlong_t)vdev_indirect_births_count(vib)); - for (uint64_t i = 0; i < vdev_indirect_births_count(vib); i++) { - vdev_indirect_birth_entry_phys_t *cur_vibe = - &vib->vib_entries[i]; - (void) printf("\toffset %llx -> txg %llu\n", - (longlong_t)cur_vibe->vibe_offset, - (longlong_t)cur_vibe->vibe_phys_birth_txg); - } - (void) printf("\n"); - - (void) printf("indirect mapping obj %llu:\n", - (longlong_t)vic->vic_mapping_object); - (void) printf(" vim_max_offset = 0x%llx\n", - (longlong_t)vdev_indirect_mapping_max_offset(vim)); - (void) printf(" vim_bytes_mapped = 0x%llx\n", - (longlong_t)vdev_indirect_mapping_bytes_mapped(vim)); - (void) printf(" vim_count = %llu\n", - (longlong_t)vdev_indirect_mapping_num_entries(vim)); - - if (dump_opt['d'] <= 5 && dump_opt['m'] <= 3) - return; - - uint32_t *counts = vdev_indirect_mapping_load_obsolete_counts(vim); - - for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) { - vdev_indirect_mapping_entry_phys_t *vimep = - &vim->vim_entries[i]; - (void) printf("\t<%llx:%llx:%llx> -> " - "<%llx:%llx:%llx> (%x obsolete)\n", - (longlong_t)vd->vdev_id, - (longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep), - (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst), - (longlong_t)DVA_GET_VDEV(&vimep->vimep_dst), - (longlong_t)DVA_GET_OFFSET(&vimep->vimep_dst), - (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst), - counts[i]); - } - (void) printf("\n"); - - uint64_t obsolete_sm_object = vdev_obsolete_sm_object(vd); - if (obsolete_sm_object != 0) { - objset_t *mos = vd->vdev_spa->spa_meta_objset; - (void) printf("obsolete space map object %llu:\n", - (u_longlong_t)obsolete_sm_object); - ASSERT(vd->vdev_obsolete_sm != NULL); - ASSERT3U(space_map_object(vd->vdev_obsolete_sm), ==, - obsolete_sm_object); - dump_spacemap(mos, vd->vdev_obsolete_sm); - (void) printf("\n"); - } -} - -static void -dump_metaslabs(spa_t *spa) -{ - vdev_t *vd, *rvd = spa->spa_root_vdev; - uint64_t m, c = 0, children = rvd->vdev_children; - - (void) printf("\nMetaslabs:\n"); - - if (!dump_opt['d'] && zopt_objects > 0) { - c = zopt_object[0]; - - if (c >= children) - (void) fatal("bad vdev id: %llu", (u_longlong_t)c); - - if (zopt_objects > 1) { - vd = rvd->vdev_child[c]; - print_vdev_metaslab_header(vd); - - for (m = 1; m < zopt_objects; m++) { - if (zopt_object[m] < vd->vdev_ms_count) - dump_metaslab( - vd->vdev_ms[zopt_object[m]]); - else - (void) fprintf(stderr, "bad metaslab " - "number %llu\n", - (u_longlong_t)zopt_object[m]); - } - (void) printf("\n"); - return; - } - children = c + 1; - } - for (; c < children; c++) { - vd = rvd->vdev_child[c]; - print_vdev_metaslab_header(vd); - - print_vdev_indirect(vd); - - for (m = 0; m < vd->vdev_ms_count; m++) - dump_metaslab(vd->vdev_ms[m]); - (void) printf("\n"); - } -} - -static void -dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) -{ - const ddt_phys_t *ddp = dde->dde_phys; - const ddt_key_t *ddk = &dde->dde_key; - const char *types[4] = { "ditto", "single", "double", "triple" }; - char blkbuf[BP_SPRINTF_LEN]; - blkptr_t blk; - - for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { - if (ddp->ddp_phys_birth == 0) - continue; - ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); - snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk); - (void) printf("index %llx refcnt %llu %s %s\n", - (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, - types[p], blkbuf); - } -} - -static void -dump_dedup_ratio(const ddt_stat_t *dds) -{ - double rL, rP, rD, D, dedup, compress, copies; - - if (dds->dds_blocks == 0) - return; - - rL = (double)dds->dds_ref_lsize; - rP = (double)dds->dds_ref_psize; - rD = (double)dds->dds_ref_dsize; - D = (double)dds->dds_dsize; - - dedup = rD / D; - compress = rL / rP; - copies = rD / rP; - - (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " - "dedup * compress / copies = %.2f\n\n", - dedup, compress, copies, dedup * compress / copies); -} - -static void -dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class) -{ - char name[DDT_NAMELEN]; - ddt_entry_t dde; - uint64_t walk = 0; - dmu_object_info_t doi; - uint64_t count, dspace, mspace; - int error; - - error = ddt_object_info(ddt, type, class, &doi); - - if (error == ENOENT) - return; - ASSERT(error == 0); - - error = ddt_object_count(ddt, type, class, &count); - ASSERT(error == 0); - if (count == 0) - return; - - dspace = doi.doi_physical_blocks_512 << 9; - mspace = doi.doi_fill_count * doi.doi_data_block_size; - - ddt_object_name(ddt, type, class, name); - - (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n", - name, - (u_longlong_t)count, - (u_longlong_t)(dspace / count), - (u_longlong_t)(mspace / count)); - - if (dump_opt['D'] < 3) - return; - - zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]); - - if (dump_opt['D'] < 4) - return; - - if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE) - return; - - (void) printf("%s contents:\n\n", name); - - while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0) - dump_dde(ddt, &dde, walk); - - ASSERT3U(error, ==, ENOENT); - - (void) printf("\n"); -} - -static void -dump_all_ddts(spa_t *spa) -{ - ddt_histogram_t ddh_total; - ddt_stat_t dds_total; - - bzero(&ddh_total, sizeof (ddh_total)); - bzero(&dds_total, sizeof (dds_total)); - - for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { - ddt_t *ddt = spa->spa_ddt[c]; - for (enum ddt_type type = 0; type < DDT_TYPES; type++) { - for (enum ddt_class class = 0; class < DDT_CLASSES; - class++) { - dump_ddt(ddt, type, class); - } - } - } - - ddt_get_dedup_stats(spa, &dds_total); - - if (dds_total.dds_blocks == 0) { - (void) printf("All DDTs are empty\n"); - return; - } - - (void) printf("\n"); - - if (dump_opt['D'] > 1) { - (void) printf("DDT histogram (aggregated over all DDTs):\n"); - ddt_get_dedup_histogram(spa, &ddh_total); - zpool_dump_ddt(&dds_total, &ddh_total); - } - - dump_dedup_ratio(&dds_total); -} - -static void -dump_dtl_seg(void *arg, uint64_t start, uint64_t size) -{ - char *prefix = arg; - - (void) printf("%s [%llu,%llu) length %llu\n", - prefix, - (u_longlong_t)start, - (u_longlong_t)(start + size), - (u_longlong_t)(size)); -} - -static void -dump_dtl(vdev_t *vd, int indent) -{ - spa_t *spa = vd->vdev_spa; - boolean_t required; - const char *name[DTL_TYPES] = { "missing", "partial", "scrub", - "outage" }; - char prefix[256]; - - spa_vdev_state_enter(spa, SCL_NONE); - required = vdev_dtl_required(vd); - (void) spa_vdev_state_exit(spa, NULL, 0); - - if (indent == 0) - (void) printf("\nDirty time logs:\n\n"); - - (void) printf("\t%*s%s [%s]\n", indent, "", - vd->vdev_path ? vd->vdev_path : - vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), - required ? "DTL-required" : "DTL-expendable"); - - for (int t = 0; t < DTL_TYPES; t++) { - range_tree_t *rt = vd->vdev_dtl[t]; - if (range_tree_space(rt) == 0) - continue; - (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", - indent + 2, "", name[t]); - range_tree_walk(rt, dump_dtl_seg, prefix); - if (dump_opt['d'] > 5 && vd->vdev_children == 0) - dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm); - } - - for (unsigned c = 0; c < vd->vdev_children; c++) - dump_dtl(vd->vdev_child[c], indent + 4); -} - -/* from spa_history.c: spa_history_create_obj() */ -#define HIS_BUF_LEN_DEF (128 << 10) -#define HIS_BUF_LEN_MAX (1 << 30) - -static void -dump_history(spa_t *spa) -{ - nvlist_t **events = NULL; - char *buf = NULL; - uint64_t bufsize = HIS_BUF_LEN_DEF; - uint64_t resid, len, off = 0; - uint_t num = 0; - int error; - time_t tsec; - struct tm t; - char tbuf[30]; - char internalstr[MAXPATHLEN]; - - if ((buf = malloc(bufsize)) == NULL) - (void) fprintf(stderr, "Unable to read history: " - "out of memory\n"); - do { - len = bufsize; - - if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { - (void) fprintf(stderr, "Unable to read history: " - "error %d\n", error); - return; - } - - if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) - break; - off -= resid; - - /* - * If the history block is too big, double the buffer - * size and try again. - */ - if (resid == len) { - free(buf); - buf = NULL; - - bufsize <<= 1; - if ((bufsize >= HIS_BUF_LEN_MAX) || - ((buf = malloc(bufsize)) == NULL)) { - (void) fprintf(stderr, "Unable to read history: " - "out of memory\n"); - return; - } - } - } while (len != 0); - free(buf); - - (void) printf("\nHistory:\n"); - for (unsigned i = 0; i < num; i++) { - uint64_t time, txg, ievent; - char *cmd, *intstr; - boolean_t printed = B_FALSE; - - if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, - &time) != 0) - goto next; - if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, - &cmd) != 0) { - if (nvlist_lookup_uint64(events[i], - ZPOOL_HIST_INT_EVENT, &ievent) != 0) - goto next; - verify(nvlist_lookup_uint64(events[i], - ZPOOL_HIST_TXG, &txg) == 0); - verify(nvlist_lookup_string(events[i], - ZPOOL_HIST_INT_STR, &intstr) == 0); - if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) - goto next; - - (void) snprintf(internalstr, - sizeof (internalstr), - "[internal %s txg:%ju] %s", - zfs_history_event_names[ievent], (uintmax_t)txg, - intstr); - cmd = internalstr; - } - tsec = time; - (void) localtime_r(&tsec, &t); - (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); - (void) printf("%s %s\n", tbuf, cmd); - printed = B_TRUE; - -next: - if (dump_opt['h'] > 1) { - if (!printed) - (void) printf("unrecognized record:\n"); - dump_nvlist(events[i], 2); - } - } -} - -/*ARGSUSED*/ -static void -dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) -{ -} - -static uint64_t -blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, - const zbookmark_phys_t *zb) -{ - if (dnp == NULL) { - ASSERT(zb->zb_level < 0); - if (zb->zb_object == 0) - return (zb->zb_blkid); - return (zb->zb_blkid * BP_GET_LSIZE(bp)); - } - - ASSERT(zb->zb_level >= 0); - - return ((zb->zb_blkid << - (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * - dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); -} - -static void -snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp) -{ - const dva_t *dva = bp->blk_dva; - int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; - - if (dump_opt['b'] >= 6) { - snprintf_blkptr(blkbuf, buflen, bp); - return; - } - - if (BP_IS_EMBEDDED(bp)) { - (void) sprintf(blkbuf, - "EMBEDDED et=%u %llxL/%llxP B=%llu", - (int)BPE_GET_ETYPE(bp), - (u_longlong_t)BPE_GET_LSIZE(bp), - (u_longlong_t)BPE_GET_PSIZE(bp), - (u_longlong_t)bp->blk_birth); - return; - } - - blkbuf[0] = '\0'; - for (int i = 0; i < ndvas; i++) - (void) snprintf(blkbuf + strlen(blkbuf), - buflen - strlen(blkbuf), "%llu:%llx:%llx ", - (u_longlong_t)DVA_GET_VDEV(&dva[i]), - (u_longlong_t)DVA_GET_OFFSET(&dva[i]), - (u_longlong_t)DVA_GET_ASIZE(&dva[i])); - - if (BP_IS_HOLE(bp)) { - (void) snprintf(blkbuf + strlen(blkbuf), - buflen - strlen(blkbuf), - "%llxL B=%llu", - (u_longlong_t)BP_GET_LSIZE(bp), - (u_longlong_t)bp->blk_birth); - } else { - (void) snprintf(blkbuf + strlen(blkbuf), - buflen - strlen(blkbuf), - "%llxL/%llxP F=%llu B=%llu/%llu", - (u_longlong_t)BP_GET_LSIZE(bp), - (u_longlong_t)BP_GET_PSIZE(bp), - (u_longlong_t)BP_GET_FILL(bp), - (u_longlong_t)bp->blk_birth, - (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); - } -} - -static void -print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb, - const dnode_phys_t *dnp) -{ - char blkbuf[BP_SPRINTF_LEN]; - int l; - - if (!BP_IS_EMBEDDED(bp)) { - ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); - ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); - } - - (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); - - ASSERT(zb->zb_level >= 0); - - for (l = dnp->dn_nlevels - 1; l >= -1; l--) { - if (l == zb->zb_level) { - (void) printf("L%llx", (u_longlong_t)zb->zb_level); - } else { - (void) printf(" "); - } - } - - snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); - (void) printf("%s\n", blkbuf); -} - -static int -visit_indirect(spa_t *spa, const dnode_phys_t *dnp, - blkptr_t *bp, const zbookmark_phys_t *zb) -{ - int err = 0; - - if (bp->blk_birth == 0) - return (0); - - print_indirect(bp, zb, dnp); - - if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) { - arc_flags_t flags = ARC_FLAG_WAIT; - int i; - blkptr_t *cbp; - int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; - arc_buf_t *buf; - uint64_t fill = 0; - - err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, - ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); - if (err) - return (err); - ASSERT(buf->b_data); - - /* recursively visit blocks below this */ - cbp = buf->b_data; - for (i = 0; i < epb; i++, cbp++) { - zbookmark_phys_t czb; - - SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, - zb->zb_level - 1, - zb->zb_blkid * epb + i); - err = visit_indirect(spa, dnp, cbp, &czb); - if (err) - break; - fill += BP_GET_FILL(cbp); - } - if (!err) - ASSERT3U(fill, ==, BP_GET_FILL(bp)); - arc_buf_destroy(buf, &buf); - } - - return (err); -} - -/*ARGSUSED*/ -static void -dump_indirect(dnode_t *dn) -{ - dnode_phys_t *dnp = dn->dn_phys; - int j; - zbookmark_phys_t czb; - - (void) printf("Indirect blocks:\n"); - - SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), - dn->dn_object, dnp->dn_nlevels - 1, 0); - for (j = 0; j < dnp->dn_nblkptr; j++) { - czb.zb_blkid = j; - (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, - &dnp->dn_blkptr[j], &czb); - } - - (void) printf("\n"); -} - -/*ARGSUSED*/ -static void -dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) -{ - dsl_dir_phys_t *dd = data; - time_t crtime; - char nice[32]; - - /* make sure nicenum has enough space */ - CTASSERT(sizeof (nice) >= NN_NUMBUF_SZ); - - if (dd == NULL) - return; - - ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); - - crtime = dd->dd_creation_time; - (void) printf("\t\tcreation_time = %s", ctime(&crtime)); - (void) printf("\t\thead_dataset_obj = %llu\n", - (u_longlong_t)dd->dd_head_dataset_obj); - (void) printf("\t\tparent_dir_obj = %llu\n", - (u_longlong_t)dd->dd_parent_obj); - (void) printf("\t\torigin_obj = %llu\n", - (u_longlong_t)dd->dd_origin_obj); - (void) printf("\t\tchild_dir_zapobj = %llu\n", - (u_longlong_t)dd->dd_child_dir_zapobj); - zdb_nicenum(dd->dd_used_bytes, nice, sizeof (nice)); - (void) printf("\t\tused_bytes = %s\n", nice); - zdb_nicenum(dd->dd_compressed_bytes, nice, sizeof (nice)); - (void) printf("\t\tcompressed_bytes = %s\n", nice); - zdb_nicenum(dd->dd_uncompressed_bytes, nice, sizeof (nice)); - (void) printf("\t\tuncompressed_bytes = %s\n", nice); - zdb_nicenum(dd->dd_quota, nice, sizeof (nice)); - (void) printf("\t\tquota = %s\n", nice); - zdb_nicenum(dd->dd_reserved, nice, sizeof (nice)); - (void) printf("\t\treserved = %s\n", nice); - (void) printf("\t\tprops_zapobj = %llu\n", - (u_longlong_t)dd->dd_props_zapobj); - (void) printf("\t\tdeleg_zapobj = %llu\n", - (u_longlong_t)dd->dd_deleg_zapobj); - (void) printf("\t\tflags = %llx\n", - (u_longlong_t)dd->dd_flags); - -#define DO(which) \ - zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice, \ - sizeof (nice)); \ - (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) - DO(HEAD); - DO(SNAP); - DO(CHILD); - DO(CHILD_RSRV); - DO(REFRSRV); -#undef DO - (void) printf("\t\tclones = %llu\n", - (u_longlong_t)dd->dd_clones); -} - -/*ARGSUSED*/ -static void -dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) -{ - dsl_dataset_phys_t *ds = data; - time_t crtime; - char used[32], compressed[32], uncompressed[32], unique[32]; - char blkbuf[BP_SPRINTF_LEN]; - - /* make sure nicenum has enough space */ - CTASSERT(sizeof (used) >= NN_NUMBUF_SZ); - CTASSERT(sizeof (compressed) >= NN_NUMBUF_SZ); - CTASSERT(sizeof (uncompressed) >= NN_NUMBUF_SZ); - CTASSERT(sizeof (unique) >= NN_NUMBUF_SZ); - - if (ds == NULL) - return; - - ASSERT(size == sizeof (*ds)); - crtime = ds->ds_creation_time; - zdb_nicenum(ds->ds_referenced_bytes, used, sizeof (used)); - zdb_nicenum(ds->ds_compressed_bytes, compressed, sizeof (compressed)); - zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed, - sizeof (uncompressed)); - zdb_nicenum(ds->ds_unique_bytes, unique, sizeof (unique)); - snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp); - - (void) printf("\t\tdir_obj = %llu\n", - (u_longlong_t)ds->ds_dir_obj); - (void) printf("\t\tprev_snap_obj = %llu\n", - (u_longlong_t)ds->ds_prev_snap_obj); - (void) printf("\t\tprev_snap_txg = %llu\n", - (u_longlong_t)ds->ds_prev_snap_txg); - (void) printf("\t\tnext_snap_obj = %llu\n", - (u_longlong_t)ds->ds_next_snap_obj); - (void) printf("\t\tsnapnames_zapobj = %llu\n", - (u_longlong_t)ds->ds_snapnames_zapobj); - (void) printf("\t\tnum_children = %llu\n", - (u_longlong_t)ds->ds_num_children); - (void) printf("\t\tuserrefs_obj = %llu\n", - (u_longlong_t)ds->ds_userrefs_obj); - (void) printf("\t\tcreation_time = %s", ctime(&crtime)); - (void) printf("\t\tcreation_txg = %llu\n", - (u_longlong_t)ds->ds_creation_txg); - (void) printf("\t\tdeadlist_obj = %llu\n", - (u_longlong_t)ds->ds_deadlist_obj); - (void) printf("\t\tused_bytes = %s\n", used); - (void) printf("\t\tcompressed_bytes = %s\n", compressed); - (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); - (void) printf("\t\tunique = %s\n", unique); - (void) printf("\t\tfsid_guid = %llu\n", - (u_longlong_t)ds->ds_fsid_guid); - (void) printf("\t\tguid = %llu\n", - (u_longlong_t)ds->ds_guid); - (void) printf("\t\tflags = %llx\n", - (u_longlong_t)ds->ds_flags); - (void) printf("\t\tnext_clones_obj = %llu\n", - (u_longlong_t)ds->ds_next_clones_obj); - (void) printf("\t\tprops_obj = %llu\n", - (u_longlong_t)ds->ds_props_obj); - (void) printf("\t\tbp = %s\n", blkbuf); -} - -/* ARGSUSED */ -static int -dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) -{ - char blkbuf[BP_SPRINTF_LEN]; - - if (bp->blk_birth != 0) { - snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); - (void) printf("\t%s\n", blkbuf); - } - return (0); -} - -static void -dump_bptree(objset_t *os, uint64_t obj, const char *name) -{ - char bytes[32]; - bptree_phys_t *bt; - dmu_buf_t *db; - - /* make sure nicenum has enough space */ - CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); - - if (dump_opt['d'] < 3) - return; - - VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); - bt = db->db_data; - zdb_nicenum(bt->bt_bytes, bytes, sizeof (bytes)); - (void) printf("\n %s: %llu datasets, %s\n", - name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); - dmu_buf_rele(db, FTAG); - - if (dump_opt['d'] < 5) - return; - - (void) printf("\n"); - - (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); -} - -/* ARGSUSED */ -static int -dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) -{ - char blkbuf[BP_SPRINTF_LEN]; - - ASSERT(bp->blk_birth != 0); - snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); - (void) printf("\t%s\n", blkbuf); - return (0); -} - -static void -dump_full_bpobj(bpobj_t *bpo, const char *name, int indent) -{ - char bytes[32]; - char comp[32]; - char uncomp[32]; - - /* make sure nicenum has enough space */ - CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); - CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ); - CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ); - - if (dump_opt['d'] < 3) - return; - - zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes, sizeof (bytes)); - if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { - zdb_nicenum(bpo->bpo_phys->bpo_comp, comp, sizeof (comp)); - zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp, sizeof (uncomp)); - (void) printf(" %*s: object %llu, %llu local blkptrs, " - "%llu subobjs in object %llu, %s (%s/%s comp)\n", - indent * 8, name, - (u_longlong_t)bpo->bpo_object, - (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, - (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, - (u_longlong_t)bpo->bpo_phys->bpo_subobjs, - bytes, comp, uncomp); - - for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { - uint64_t subobj; - bpobj_t subbpo; - int error; - VERIFY0(dmu_read(bpo->bpo_os, - bpo->bpo_phys->bpo_subobjs, - i * sizeof (subobj), sizeof (subobj), &subobj, 0)); - error = bpobj_open(&subbpo, bpo->bpo_os, subobj); - if (error != 0) { - (void) printf("ERROR %u while trying to open " - "subobj id %llu\n", - error, (u_longlong_t)subobj); - continue; - } - dump_full_bpobj(&subbpo, "subobj", indent + 1); - bpobj_close(&subbpo); - } - } else { - (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", - indent * 8, name, - (u_longlong_t)bpo->bpo_object, - (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, - bytes); - } - - if (dump_opt['d'] < 5) - return; - - - if (indent == 0) { - (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); - (void) printf("\n"); - } -} - -static void -bpobj_count_refd(bpobj_t *bpo) -{ - mos_obj_refd(bpo->bpo_object); - - if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { - mos_obj_refd(bpo->bpo_phys->bpo_subobjs); - for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { - uint64_t subobj; - bpobj_t subbpo; - int error; - VERIFY0(dmu_read(bpo->bpo_os, - bpo->bpo_phys->bpo_subobjs, - i * sizeof (subobj), sizeof (subobj), &subobj, 0)); - error = bpobj_open(&subbpo, bpo->bpo_os, subobj); - if (error != 0) { - (void) printf("ERROR %u while trying to open " - "subobj id %llu\n", - error, (u_longlong_t)subobj); - continue; - } - bpobj_count_refd(&subbpo); - bpobj_close(&subbpo); - } - } -} - -static void -dump_deadlist(dsl_deadlist_t *dl) -{ - dsl_deadlist_entry_t *dle; - uint64_t unused; - char bytes[32]; - char comp[32]; - char uncomp[32]; - uint64_t empty_bpobj = - dmu_objset_spa(dl->dl_os)->spa_dsl_pool->dp_empty_bpobj; - - /* force the tree to be loaded */ - dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); - - if (dl->dl_oldfmt) { - if (dl->dl_bpobj.bpo_object != empty_bpobj) - bpobj_count_refd(&dl->dl_bpobj); - } else { - mos_obj_refd(dl->dl_object); - for (dle = avl_first(&dl->dl_tree); dle; - dle = AVL_NEXT(&dl->dl_tree, dle)) { - if (dle->dle_bpobj.bpo_object != empty_bpobj) - bpobj_count_refd(&dle->dle_bpobj); - } - } - - /* make sure nicenum has enough space */ - CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); - CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ); - CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ); - - if (dump_opt['d'] < 3) - return; - - if (dl->dl_oldfmt) { - dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0); - return; - } - - zdb_nicenum(dl->dl_phys->dl_used, bytes, sizeof (bytes)); - zdb_nicenum(dl->dl_phys->dl_comp, comp, sizeof (comp)); - zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp, sizeof (uncomp)); - (void) printf("\n Deadlist: %s (%s/%s comp)\n", - bytes, comp, uncomp); - - if (dump_opt['d'] < 4) - return; - - (void) printf("\n"); - - for (dle = avl_first(&dl->dl_tree); dle; - dle = AVL_NEXT(&dl->dl_tree, dle)) { - if (dump_opt['d'] >= 5) { - char buf[128]; - (void) snprintf(buf, sizeof (buf), - "mintxg %llu -> obj %llu", - (longlong_t)dle->dle_mintxg, - (longlong_t)dle->dle_bpobj.bpo_object); - dump_full_bpobj(&dle->dle_bpobj, buf, 0); - } else { - (void) printf("mintxg %llu -> obj %llu\n", - (longlong_t)dle->dle_mintxg, - (longlong_t)dle->dle_bpobj.bpo_object); - } - } -} - -static avl_tree_t idx_tree; -static avl_tree_t domain_tree; -static boolean_t fuid_table_loaded; -static objset_t *sa_os = NULL; -static sa_attr_type_t *sa_attr_table = NULL; - -static int -open_objset(const char *path, dmu_objset_type_t type, void *tag, objset_t **osp) -{ - int err; - uint64_t sa_attrs = 0; - uint64_t version = 0; - - VERIFY3P(sa_os, ==, NULL); - err = dmu_objset_own(path, type, B_TRUE, tag, osp); - if (err != 0) { - (void) fprintf(stderr, "failed to own dataset '%s': %s\n", path, - strerror(err)); - return (err); - } - - if (dmu_objset_type(*osp) == DMU_OST_ZFS) { - (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZPL_VERSION_STR, - 8, 1, &version); - if (version >= ZPL_VERSION_SA) { - (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS, - 8, 1, &sa_attrs); - } - err = sa_setup(*osp, sa_attrs, zfs_attr_table, ZPL_END, - &sa_attr_table); - if (err != 0) { - (void) fprintf(stderr, "sa_setup failed: %s\n", - strerror(err)); - dmu_objset_disown(*osp, tag); - *osp = NULL; - } - } - sa_os = *osp; - - return (0); -} - -static void -close_objset(objset_t *os, void *tag) -{ - VERIFY3P(os, ==, sa_os); - if (os->os_sa != NULL) - sa_tear_down(os); - dmu_objset_disown(os, tag); - sa_attr_table = NULL; - sa_os = NULL; -} - -static void -fuid_table_destroy() -{ - if (fuid_table_loaded) { - zfs_fuid_table_destroy(&idx_tree, &domain_tree); - fuid_table_loaded = B_FALSE; - } -} - -/* - * print uid or gid information. - * For normal POSIX id just the id is printed in decimal format. - * For CIFS files with FUID the fuid is printed in hex followed by - * the domain-rid string. - */ -static void -print_idstr(uint64_t id, const char *id_type) -{ - if (FUID_INDEX(id)) { - char *domain; - - domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); - (void) printf("\t%s %llx [%s-%d]\n", id_type, - (u_longlong_t)id, domain, (int)FUID_RID(id)); - } else { - (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); - } - -} - -static void -dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) -{ - uint32_t uid_idx, gid_idx; - - uid_idx = FUID_INDEX(uid); - gid_idx = FUID_INDEX(gid); - - /* Load domain table, if not already loaded */ - if (!fuid_table_loaded && (uid_idx || gid_idx)) { - uint64_t fuid_obj; - - /* first find the fuid object. It lives in the master node */ - VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, - 8, 1, &fuid_obj) == 0); - zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); - (void) zfs_fuid_table_load(os, fuid_obj, - &idx_tree, &domain_tree); - fuid_table_loaded = B_TRUE; - } - - print_idstr(uid, "uid"); - print_idstr(gid, "gid"); -} - -/*ARGSUSED*/ -static void -dump_znode(objset_t *os, uint64_t object, void *data, size_t size) -{ - char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ - sa_handle_t *hdl; - uint64_t xattr, rdev, gen; - uint64_t uid, gid, mode, fsize, parent, links; - uint64_t pflags; - uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; - time_t z_crtime, z_atime, z_mtime, z_ctime; - sa_bulk_attr_t bulk[12]; - int idx = 0; - int error; - - VERIFY3P(os, ==, sa_os); - if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { - (void) printf("Failed to get handle for SA znode\n"); - return; - } - - SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); - SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); - SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, - &links, 8); - SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); - SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, - &mode, 8); - SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], - NULL, &parent, 8); - SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, - &fsize, 8); - SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, - acctm, 16); - SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, - modtm, 16); - SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, - crtm, 16); - SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, - chgtm, 16); - SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, - &pflags, 8); - - if (sa_bulk_lookup(hdl, bulk, idx)) { - (void) sa_handle_destroy(hdl); - return; - } - - z_crtime = (time_t)crtm[0]; - z_atime = (time_t)acctm[0]; - z_mtime = (time_t)modtm[0]; - z_ctime = (time_t)chgtm[0]; - - if (dump_opt['d'] > 4) { - error = zfs_obj_to_path(os, object, path, sizeof (path)); - if (error == ESTALE) { - (void) snprintf(path, sizeof (path), "on delete queue"); - } else if (error != 0) { - leaked_objects++; - (void) snprintf(path, sizeof (path), - "path not found, possibly leaked"); - } - (void) printf("\tpath %s\n", path); - } - dump_uidgid(os, uid, gid); - (void) printf("\tatime %s", ctime(&z_atime)); - (void) printf("\tmtime %s", ctime(&z_mtime)); - (void) printf("\tctime %s", ctime(&z_ctime)); - (void) printf("\tcrtime %s", ctime(&z_crtime)); - (void) printf("\tgen %llu\n", (u_longlong_t)gen); - (void) printf("\tmode %llo\n", (u_longlong_t)mode); - (void) printf("\tsize %llu\n", (u_longlong_t)fsize); - (void) printf("\tparent %llu\n", (u_longlong_t)parent); - (void) printf("\tlinks %llu\n", (u_longlong_t)links); - (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); - if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, - sizeof (uint64_t)) == 0) - (void) printf("\txattr %llu\n", (u_longlong_t)xattr); - if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, - sizeof (uint64_t)) == 0) - (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); - sa_handle_destroy(hdl); -} - -/*ARGSUSED*/ -static void -dump_acl(objset_t *os, uint64_t object, void *data, size_t size) -{ -} - -/*ARGSUSED*/ -static void -dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) -{ -} - -static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { - dump_none, /* unallocated */ - dump_zap, /* object directory */ - dump_uint64, /* object array */ - dump_none, /* packed nvlist */ - dump_packed_nvlist, /* packed nvlist size */ - dump_none, /* bpobj */ - dump_bpobj, /* bpobj header */ - dump_none, /* SPA space map header */ - dump_none, /* SPA space map */ - dump_none, /* ZIL intent log */ - dump_dnode, /* DMU dnode */ - dump_dmu_objset, /* DMU objset */ - dump_dsl_dir, /* DSL directory */ - dump_zap, /* DSL directory child map */ - dump_zap, /* DSL dataset snap map */ - dump_zap, /* DSL props */ - dump_dsl_dataset, /* DSL dataset */ - dump_znode, /* ZFS znode */ - dump_acl, /* ZFS V0 ACL */ - dump_uint8, /* ZFS plain file */ - dump_zpldir, /* ZFS directory */ - dump_zap, /* ZFS master node */ - dump_zap, /* ZFS delete queue */ - dump_uint8, /* zvol object */ - dump_zap, /* zvol prop */ - dump_uint8, /* other uint8[] */ - dump_uint64, /* other uint64[] */ - dump_zap, /* other ZAP */ - dump_zap, /* persistent error log */ - dump_uint8, /* SPA history */ - dump_history_offsets, /* SPA history offsets */ - dump_zap, /* Pool properties */ - dump_zap, /* DSL permissions */ - dump_acl, /* ZFS ACL */ - dump_uint8, /* ZFS SYSACL */ - dump_none, /* FUID nvlist */ - dump_packed_nvlist, /* FUID nvlist size */ - dump_zap, /* DSL dataset next clones */ - dump_zap, /* DSL scrub queue */ - dump_zap, /* ZFS user/group used */ - dump_zap, /* ZFS user/group quota */ - dump_zap, /* snapshot refcount tags */ - dump_ddt_zap, /* DDT ZAP object */ - dump_zap, /* DDT statistics */ - dump_znode, /* SA object */ - dump_zap, /* SA Master Node */ - dump_sa_attrs, /* SA attribute registration */ - dump_sa_layouts, /* SA attribute layouts */ - dump_zap, /* DSL scrub translations */ - dump_none, /* fake dedup BP */ - dump_zap, /* deadlist */ - dump_none, /* deadlist hdr */ - dump_zap, /* dsl clones */ - dump_bpobj_subobjs, /* bpobj subobjs */ - dump_unknown, /* Unknown type, must be last */ -}; - -static void -dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header, - uint64_t *dnode_slots_used) -{ - dmu_buf_t *db = NULL; - dmu_object_info_t doi; - dnode_t *dn; - void *bonus = NULL; - size_t bsize = 0; - char iblk[32], dblk[32], lsize[32], asize[32], fill[32], dnsize[32]; - char bonus_size[32]; - char aux[50]; - int error; - - /* make sure nicenum has enough space */ - CTASSERT(sizeof (iblk) >= NN_NUMBUF_SZ); - CTASSERT(sizeof (dblk) >= NN_NUMBUF_SZ); - CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ); - CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ); - CTASSERT(sizeof (bonus_size) >= NN_NUMBUF_SZ); - - if (*print_header) { - (void) printf("\n%10s %3s %5s %5s %5s %6s %5s %6s %s\n", - "Object", "lvl", "iblk", "dblk", "dsize", "dnsize", - "lsize", "%full", "type"); - *print_header = 0; - } - - if (object == 0) { - dn = DMU_META_DNODE(os); - } else { - error = dmu_bonus_hold(os, object, FTAG, &db); - if (error) - fatal("dmu_bonus_hold(%llu) failed, errno %u", - object, error); - bonus = db->db_data; - bsize = db->db_size; - dn = DB_DNODE((dmu_buf_impl_t *)db); - } - dmu_object_info_from_dnode(dn, &doi); - - if (dnode_slots_used != NULL) - *dnode_slots_used = doi.doi_dnodesize / DNODE_MIN_SIZE; - - zdb_nicenum(doi.doi_metadata_block_size, iblk, sizeof (iblk)); - zdb_nicenum(doi.doi_data_block_size, dblk, sizeof (dblk)); - zdb_nicenum(doi.doi_max_offset, lsize, sizeof (lsize)); - zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize, sizeof (asize)); - zdb_nicenum(doi.doi_bonus_size, bonus_size, sizeof (bonus_size)); - zdb_nicenum(doi.doi_dnodesize, dnsize, sizeof (dnsize)); - (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * - doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / - doi.doi_max_offset); - - aux[0] = '\0'; - - if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { - (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", - ZDB_CHECKSUM_NAME(doi.doi_checksum)); - } - - if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { - (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", - ZDB_COMPRESS_NAME(doi.doi_compress)); - } - - (void) printf("%10" PRIu64 - " %3u %5s %5s %5s %5s %5s %6s %s%s\n", - object, doi.doi_indirection, iblk, dblk, - asize, dnsize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); - - if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { - (void) printf("%10s %3s %5s %5s %5s %5s %5s %6s %s\n", - "", "", "", "", "", "", bonus_size, "bonus", - ZDB_OT_NAME(doi.doi_bonus_type)); - } - - if (verbosity >= 4) { - (void) printf("\tdnode flags: %s%s%s\n", - (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? - "USED_BYTES " : "", - (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? - "USERUSED_ACCOUNTED " : "", - (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? - "SPILL_BLKPTR" : ""); - (void) printf("\tdnode maxblkid: %llu\n", - (longlong_t)dn->dn_phys->dn_maxblkid); - - object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, - bonus, bsize); - object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); - *print_header = 1; - } - - if (verbosity >= 5) - dump_indirect(dn); - - if (verbosity >= 5) { - /* - * Report the list of segments that comprise the object. - */ - uint64_t start = 0; - uint64_t end; - uint64_t blkfill = 1; - int minlvl = 1; - - if (dn->dn_type == DMU_OT_DNODE) { - minlvl = 0; - blkfill = DNODES_PER_BLOCK; - } - - for (;;) { - char segsize[32]; - /* make sure nicenum has enough space */ - CTASSERT(sizeof (segsize) >= NN_NUMBUF_SZ); - error = dnode_next_offset(dn, - 0, &start, minlvl, blkfill, 0); - if (error) - break; - end = start; - error = dnode_next_offset(dn, - DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); - zdb_nicenum(end - start, segsize, sizeof (segsize)); - (void) printf("\t\tsegment [%016llx, %016llx)" - " size %5s\n", (u_longlong_t)start, - (u_longlong_t)end, segsize); - if (error) - break; - start = end; - } - } - - if (db != NULL) - dmu_buf_rele(db, FTAG); -} - -static void -count_dir_mos_objects(dsl_dir_t *dd) -{ - mos_obj_refd(dd->dd_object); - mos_obj_refd(dsl_dir_phys(dd)->dd_child_dir_zapobj); - mos_obj_refd(dsl_dir_phys(dd)->dd_deleg_zapobj); - mos_obj_refd(dsl_dir_phys(dd)->dd_props_zapobj); - mos_obj_refd(dsl_dir_phys(dd)->dd_clones); -} - -static void -count_ds_mos_objects(dsl_dataset_t *ds) -{ - mos_obj_refd(ds->ds_object); - mos_obj_refd(dsl_dataset_phys(ds)->ds_next_clones_obj); - mos_obj_refd(dsl_dataset_phys(ds)->ds_props_obj); - mos_obj_refd(dsl_dataset_phys(ds)->ds_userrefs_obj); - mos_obj_refd(dsl_dataset_phys(ds)->ds_snapnames_zapobj); - - if (!dsl_dataset_is_snapshot(ds)) { - count_dir_mos_objects(ds->ds_dir); - } -} - -static const char *objset_types[DMU_OST_NUMTYPES] = { - "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; - -static void -dump_dir(objset_t *os) -{ - dmu_objset_stats_t dds; - uint64_t object, object_count; - uint64_t refdbytes, usedobjs, scratch; - char numbuf[32]; - char blkbuf[BP_SPRINTF_LEN + 20]; - char osname[ZFS_MAX_DATASET_NAME_LEN]; - const char *type = "UNKNOWN"; - int verbosity = dump_opt['d']; - int print_header = 1; - unsigned i; - int error; - uint64_t total_slots_used = 0; - uint64_t max_slot_used = 0; - uint64_t dnode_slots; - - /* make sure nicenum has enough space */ - CTASSERT(sizeof (numbuf) >= NN_NUMBUF_SZ); - - dsl_pool_config_enter(dmu_objset_pool(os), FTAG); - dmu_objset_fast_stat(os, &dds); - dsl_pool_config_exit(dmu_objset_pool(os), FTAG); - - if (dds.dds_type < DMU_OST_NUMTYPES) - type = objset_types[dds.dds_type]; - - if (dds.dds_type == DMU_OST_META) { - dds.dds_creation_txg = TXG_INITIAL; - usedobjs = BP_GET_FILL(os->os_rootbp); - refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)-> - dd_used_bytes; - } else { - dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); - } - - ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp)); - - zdb_nicenum(refdbytes, numbuf, sizeof (numbuf)); - - if (verbosity >= 4) { - (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp "); - (void) snprintf_blkptr(blkbuf + strlen(blkbuf), - sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp); - } else { - blkbuf[0] = '\0'; - } - - dmu_objset_name(os, osname); - - (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " - "%s, %llu objects%s%s\n", - osname, type, (u_longlong_t)dmu_objset_id(os), - (u_longlong_t)dds.dds_creation_txg, - numbuf, (u_longlong_t)usedobjs, blkbuf, - (dds.dds_inconsistent) ? " (inconsistent)" : ""); - - if (zopt_objects != 0) { - for (i = 0; i < zopt_objects; i++) - dump_object(os, zopt_object[i], verbosity, - &print_header, NULL); - (void) printf("\n"); - return; - } - - if (dump_opt['i'] != 0 || verbosity >= 2) - dump_intent_log(dmu_objset_zil(os)); - - if (dmu_objset_ds(os) != NULL) { - dsl_dataset_t *ds = dmu_objset_ds(os); - dump_deadlist(&ds->ds_deadlist); - - if (dsl_dataset_remap_deadlist_exists(ds)) { - (void) printf("ds_remap_deadlist:\n"); - dump_deadlist(&ds->ds_remap_deadlist); - } - count_ds_mos_objects(ds); - } - - if (verbosity < 2) - return; - - if (BP_IS_HOLE(os->os_rootbp)) - return; - - dump_object(os, 0, verbosity, &print_header, NULL); - object_count = 0; - if (DMU_USERUSED_DNODE(os) != NULL && - DMU_USERUSED_DNODE(os)->dn_type != 0) { - dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header, - NULL); - dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header, - NULL); - } - - object = 0; - while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { - dump_object(os, object, verbosity, &print_header, &dnode_slots); - object_count++; - total_slots_used += dnode_slots; - max_slot_used = object + dnode_slots - 1; - } - - (void) printf("\n"); - - (void) printf(" Dnode slots:\n"); - (void) printf("\tTotal used: %10llu\n", - (u_longlong_t)total_slots_used); - (void) printf("\tMax used: %10llu\n", - (u_longlong_t)max_slot_used); - (void) printf("\tPercent empty: %10lf\n", - (double)(max_slot_used - total_slots_used)*100 / - (double)max_slot_used); - - (void) printf("\n"); - - if (error != ESRCH) { - (void) fprintf(stderr, "dmu_object_next() = %d\n", error); - abort(); - } - - ASSERT3U(object_count, ==, usedobjs); - - if (leaked_objects != 0) { - (void) printf("%d potentially leaked objects detected\n", - leaked_objects); - leaked_objects = 0; - } -} - -static void -dump_uberblock(uberblock_t *ub, const char *header, const char *footer) -{ - time_t timestamp = ub->ub_timestamp; - - (void) printf("%s", header ? header : ""); - (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); - (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); - (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); - (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); - (void) printf("\ttimestamp = %llu UTC = %s", - (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); - - (void) printf("\tmmp_magic = %016llx\n", - (u_longlong_t)ub->ub_mmp_magic); - if (MMP_VALID(ub)) { - (void) printf("\tmmp_delay = %0llu\n", - (u_longlong_t)ub->ub_mmp_delay); - if (MMP_SEQ_VALID(ub)) - (void) printf("\tmmp_seq = %u\n", - (unsigned int) MMP_SEQ(ub)); - if (MMP_FAIL_INT_VALID(ub)) - (void) printf("\tmmp_fail = %u\n", - (unsigned int) MMP_FAIL_INT(ub)); - if (MMP_INTERVAL_VALID(ub)) - (void) printf("\tmmp_write = %u\n", - (unsigned int) MMP_INTERVAL(ub)); - /* After MMP_* to make summarize_uberblock_mmp cleaner */ - (void) printf("\tmmp_valid = %x\n", - (unsigned int) ub->ub_mmp_config & 0xFF); - } - - if (dump_opt['u'] >= 3) { - char blkbuf[BP_SPRINTF_LEN]; - snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp); - (void) printf("\trootbp = %s\n", blkbuf); - } - (void) printf("\tcheckpoint_txg = %llu\n", - (u_longlong_t)ub->ub_checkpoint_txg); - (void) printf("%s", footer ? footer : ""); -} - -static void -dump_config(spa_t *spa) -{ - dmu_buf_t *db; - size_t nvsize = 0; - int error = 0; - - - error = dmu_bonus_hold(spa->spa_meta_objset, - spa->spa_config_object, FTAG, &db); - - if (error == 0) { - nvsize = *(uint64_t *)db->db_data; - dmu_buf_rele(db, FTAG); - - (void) printf("\nMOS Configuration:\n"); - dump_packed_nvlist(spa->spa_meta_objset, - spa->spa_config_object, (void *)&nvsize, 1); - } else { - (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", - (u_longlong_t)spa->spa_config_object, error); - } -} - -static void -dump_cachefile(const char *cachefile) -{ - int fd; - struct stat64 statbuf; - char *buf; - nvlist_t *config; - - if ((fd = open64(cachefile, O_RDONLY)) < 0) { - (void) fprintf(stderr, "cannot open '%s': %s\n", cachefile, - strerror(errno)); - exit(1); - } - - if (fstat64(fd, &statbuf) != 0) { - (void) fprintf(stderr, "failed to stat '%s': %s\n", cachefile, - strerror(errno)); - exit(1); - } - - if ((buf = malloc(statbuf.st_size)) == NULL) { - (void) fprintf(stderr, "failed to allocate %llu bytes\n", - (u_longlong_t)statbuf.st_size); - exit(1); - } - - if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { - (void) fprintf(stderr, "failed to read %llu bytes\n", - (u_longlong_t)statbuf.st_size); - exit(1); - } - - (void) close(fd); - - if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { - (void) fprintf(stderr, "failed to unpack nvlist\n"); - exit(1); - } - - free(buf); - - dump_nvlist(config, 0); - - nvlist_free(config); -} - -#define ZDB_MAX_UB_HEADER_SIZE 32 - -static void -dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) -{ - vdev_t vd; - vdev_t *vdp = &vd; - char header[ZDB_MAX_UB_HEADER_SIZE]; - - vd.vdev_ashift = ashift; - vdp->vdev_top = vdp; - - for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { - uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); - uberblock_t *ub = (void *)((char *)lbl + uoff); - - if (uberblock_verify(ub)) - continue; - - if ((dump_opt['u'] < 4) && - (ub->ub_mmp_magic == MMP_MAGIC) && ub->ub_mmp_delay && - (i >= VDEV_UBERBLOCK_COUNT(&vd) - MMP_BLOCKS_PER_LABEL)) - continue; - - (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, - "Uberblock[%d]\n", i); - dump_uberblock(ub, header, ""); - } -} - -static char curpath[PATH_MAX]; - -/* - * Iterate through the path components, recursively passing - * current one's obj and remaining path until we find the obj - * for the last one. - */ -static int -dump_path_impl(objset_t *os, uint64_t obj, char *name) -{ - int err; - int header = 1; - uint64_t child_obj; - char *s; - dmu_buf_t *db; - dmu_object_info_t doi; - - if ((s = strchr(name, '/')) != NULL) - *s = '\0'; - err = zap_lookup(os, obj, name, 8, 1, &child_obj); - - (void) strlcat(curpath, name, sizeof (curpath)); - - if (err != 0) { - (void) fprintf(stderr, "failed to lookup %s: %s\n", - curpath, strerror(err)); - return (err); - } - - child_obj = ZFS_DIRENT_OBJ(child_obj); - err = sa_buf_hold(os, child_obj, FTAG, &db); - if (err != 0) { - (void) fprintf(stderr, - "failed to get SA dbuf for obj %llu: %s\n", - (u_longlong_t)child_obj, strerror(err)); - return (EINVAL); - } - dmu_object_info_from_db(db, &doi); - sa_buf_rele(db, FTAG); - - if (doi.doi_bonus_type != DMU_OT_SA && - doi.doi_bonus_type != DMU_OT_ZNODE) { - (void) fprintf(stderr, "invalid bonus type %d for obj %llu\n", - doi.doi_bonus_type, (u_longlong_t)child_obj); - return (EINVAL); - } - - if (dump_opt['v'] > 6) { - (void) printf("obj=%llu %s type=%d bonustype=%d\n", - (u_longlong_t)child_obj, curpath, doi.doi_type, - doi.doi_bonus_type); - } - - (void) strlcat(curpath, "/", sizeof (curpath)); - - switch (doi.doi_type) { - case DMU_OT_DIRECTORY_CONTENTS: - if (s != NULL && *(s + 1) != '\0') - return (dump_path_impl(os, child_obj, s + 1)); - /*FALLTHROUGH*/ - case DMU_OT_PLAIN_FILE_CONTENTS: - dump_object(os, child_obj, dump_opt['v'], &header, NULL); - return (0); - default: - (void) fprintf(stderr, "object %llu has non-file/directory " - "type %d\n", (u_longlong_t)obj, doi.doi_type); - break; - } - - return (EINVAL); -} - -/* - * Dump the blocks for the object specified by path inside the dataset. - */ -static int -dump_path(char *ds, char *path) -{ - int err; - objset_t *os; - uint64_t root_obj; - - err = open_objset(ds, DMU_OST_ZFS, FTAG, &os); - if (err != 0) - return (err); - - err = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1, &root_obj); - if (err != 0) { - (void) fprintf(stderr, "can't lookup root znode: %s\n", - strerror(err)); - dmu_objset_disown(os, FTAG); - return (EINVAL); - } - - (void) snprintf(curpath, sizeof (curpath), "dataset=%s path=/", ds); - - err = dump_path_impl(os, root_obj, path); - - close_objset(os, FTAG); - return (err); -} - -static int -dump_label(const char *dev) -{ - int fd; - vdev_label_t label; - char path[MAXPATHLEN]; - char *buf = label.vl_vdev_phys.vp_nvlist; - size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); - struct stat64 statbuf; - uint64_t psize, ashift; - boolean_t label_found = B_FALSE; - - (void) strlcpy(path, dev, sizeof (path)); - if (dev[0] == '/') { - if (strncmp(dev, ZFS_DISK_ROOTD, - strlen(ZFS_DISK_ROOTD)) == 0) { - (void) snprintf(path, sizeof (path), "%s%s", - ZFS_RDISK_ROOTD, dev + strlen(ZFS_DISK_ROOTD)); - } - } else if (stat64(path, &statbuf) != 0) { - char *s; - - (void) snprintf(path, sizeof (path), "%s%s", ZFS_RDISK_ROOTD, - dev); - if (((s = strrchr(dev, 's')) == NULL && - (s = strchr(dev, 'p')) == NULL) || - !isdigit(*(s + 1))) - (void) strlcat(path, "s0", sizeof (path)); - } - - if ((fd = open64(path, O_RDONLY)) < 0) { - (void) fprintf(stderr, "cannot open '%s': %s\n", path, - strerror(errno)); - exit(1); - } - - if (fstat64(fd, &statbuf) != 0) { - (void) fprintf(stderr, "failed to stat '%s': %s\n", path, - strerror(errno)); - (void) close(fd); - exit(1); - } - - if (S_ISBLK(statbuf.st_mode)) { - (void) fprintf(stderr, - "cannot use '%s': character device required\n", path); - (void) close(fd); - exit(1); - } - - psize = statbuf.st_size; - psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); - - for (int l = 0; l < VDEV_LABELS; l++) { - nvlist_t *config = NULL; - - if (!dump_opt['q']) { - (void) printf("------------------------------------\n"); - (void) printf("LABEL %d\n", l); - (void) printf("------------------------------------\n"); - } - - if (pread64(fd, &label, sizeof (label), - vdev_label_offset(psize, l, 0)) != sizeof (label)) { - if (!dump_opt['q']) - (void) printf("failed to read label %d\n", l); - continue; - } - - if (nvlist_unpack(buf, buflen, &config, 0) != 0) { - if (!dump_opt['q']) - (void) printf("failed to unpack label %d\n", l); - ashift = SPA_MINBLOCKSHIFT; - } else { - nvlist_t *vdev_tree = NULL; - - if (!dump_opt['q']) - dump_nvlist(config, 4); - if ((nvlist_lookup_nvlist(config, - ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || - (nvlist_lookup_uint64(vdev_tree, - ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) - ashift = SPA_MINBLOCKSHIFT; - nvlist_free(config); - label_found = B_TRUE; - } - if (dump_opt['u']) - dump_label_uberblocks(&label, ashift); - } - - (void) close(fd); - - return (label_found ? 0 : 2); -} - -static uint64_t dataset_feature_count[SPA_FEATURES]; -static uint64_t remap_deadlist_count = 0; - -/*ARGSUSED*/ -static int -dump_one_dir(const char *dsname, void *arg) -{ - int error; - objset_t *os; - - error = open_objset(dsname, DMU_OST_ANY, FTAG, &os); - if (error != 0) - return (0); - - for (spa_feature_t f = 0; f < SPA_FEATURES; f++) { - if (!dmu_objset_ds(os)->ds_feature_inuse[f]) - continue; - ASSERT(spa_feature_table[f].fi_flags & - ZFEATURE_FLAG_PER_DATASET); - dataset_feature_count[f]++; - } - - if (dsl_dataset_remap_deadlist_exists(dmu_objset_ds(os))) { - remap_deadlist_count++; - } - - dump_dir(os); - close_objset(os, FTAG); - fuid_table_destroy(); - return (0); -} - -/* - * Block statistics. - */ -#define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2) -typedef struct zdb_blkstats { - uint64_t zb_asize; - uint64_t zb_lsize; - uint64_t zb_psize; - uint64_t zb_count; - uint64_t zb_gangs; - uint64_t zb_ditto_samevdev; - uint64_t zb_ditto_same_ms; - uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; -} zdb_blkstats_t; - -/* - * Extended object types to report deferred frees and dedup auto-ditto blocks. - */ -#define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) -#define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) -#define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) -#define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) - -static const char *zdb_ot_extname[] = { - "deferred free", - "dedup ditto", - "other", - "Total", -}; - -#define ZB_TOTAL DN_MAX_LEVELS - -typedef struct zdb_cb { - zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; - uint64_t zcb_removing_size; - uint64_t zcb_checkpoint_size; - uint64_t zcb_dedup_asize; - uint64_t zcb_dedup_blocks; - uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES]; - uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES] - [BPE_PAYLOAD_SIZE]; - uint64_t zcb_start; - hrtime_t zcb_lastprint; - uint64_t zcb_totalasize; - uint64_t zcb_errors[256]; - int zcb_readfails; - int zcb_haderrors; - spa_t *zcb_spa; - uint32_t **zcb_vd_obsolete_counts; -} zdb_cb_t; - -/* test if two DVA offsets from same vdev are within the same metaslab */ -static boolean_t -same_metaslab(spa_t *spa, uint64_t vdev, uint64_t off1, uint64_t off2) -{ - vdev_t *vd = vdev_lookup_top(spa, vdev); - uint64_t ms_shift = vd->vdev_ms_shift; - - return ((off1 >> ms_shift) == (off2 >> ms_shift)); -} - -static void -zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, - dmu_object_type_t type) -{ - uint64_t refcnt = 0; - - ASSERT(type < ZDB_OT_TOTAL); - - if (zilog && zil_bp_tree_add(zilog, bp) != 0) - return; - - spa_config_enter(zcb->zcb_spa, SCL_CONFIG, FTAG, RW_READER); - - for (int i = 0; i < 4; i++) { - int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; - int t = (i & 1) ? type : ZDB_OT_TOTAL; - int equal; - zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; - - zb->zb_asize += BP_GET_ASIZE(bp); - zb->zb_lsize += BP_GET_LSIZE(bp); - zb->zb_psize += BP_GET_PSIZE(bp); - zb->zb_count++; - - /* - * The histogram is only big enough to record blocks up to - * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last, - * "other", bucket. - */ - unsigned idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT; - idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1); - zb->zb_psize_histogram[idx]++; - - zb->zb_gangs += BP_COUNT_GANG(bp); - - switch (BP_GET_NDVAS(bp)) { - case 2: - if (DVA_GET_VDEV(&bp->blk_dva[0]) == - DVA_GET_VDEV(&bp->blk_dva[1])) { - zb->zb_ditto_samevdev++; - - if (same_metaslab(zcb->zcb_spa, - DVA_GET_VDEV(&bp->blk_dva[0]), - DVA_GET_OFFSET(&bp->blk_dva[0]), - DVA_GET_OFFSET(&bp->blk_dva[1]))) - zb->zb_ditto_same_ms++; - } - break; - case 3: - equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == - DVA_GET_VDEV(&bp->blk_dva[1])) + - (DVA_GET_VDEV(&bp->blk_dva[0]) == - DVA_GET_VDEV(&bp->blk_dva[2])) + - (DVA_GET_VDEV(&bp->blk_dva[1]) == - DVA_GET_VDEV(&bp->blk_dva[2])); - if (equal != 0) { - zb->zb_ditto_samevdev++; - - if (DVA_GET_VDEV(&bp->blk_dva[0]) == - DVA_GET_VDEV(&bp->blk_dva[1]) && - same_metaslab(zcb->zcb_spa, - DVA_GET_VDEV(&bp->blk_dva[0]), - DVA_GET_OFFSET(&bp->blk_dva[0]), - DVA_GET_OFFSET(&bp->blk_dva[1]))) - zb->zb_ditto_same_ms++; - else if (DVA_GET_VDEV(&bp->blk_dva[0]) == - DVA_GET_VDEV(&bp->blk_dva[2]) && - same_metaslab(zcb->zcb_spa, - DVA_GET_VDEV(&bp->blk_dva[0]), - DVA_GET_OFFSET(&bp->blk_dva[0]), - DVA_GET_OFFSET(&bp->blk_dva[2]))) - zb->zb_ditto_same_ms++; - else if (DVA_GET_VDEV(&bp->blk_dva[1]) == - DVA_GET_VDEV(&bp->blk_dva[2]) && - same_metaslab(zcb->zcb_spa, - DVA_GET_VDEV(&bp->blk_dva[1]), - DVA_GET_OFFSET(&bp->blk_dva[1]), - DVA_GET_OFFSET(&bp->blk_dva[2]))) - zb->zb_ditto_same_ms++; - } - break; - } - } - - spa_config_exit(zcb->zcb_spa, SCL_CONFIG, FTAG); - - if (BP_IS_EMBEDDED(bp)) { - zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++; - zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)] - [BPE_GET_PSIZE(bp)]++; - return; - } - - if (dump_opt['L']) - return; - - if (BP_GET_DEDUP(bp)) { - ddt_t *ddt; - ddt_entry_t *dde; - - ddt = ddt_select(zcb->zcb_spa, bp); - ddt_enter(ddt); - dde = ddt_lookup(ddt, bp, B_FALSE); - - if (dde == NULL) { - refcnt = 0; - } else { - ddt_phys_t *ddp = ddt_phys_select(dde, bp); - ddt_phys_decref(ddp); - refcnt = ddp->ddp_refcnt; - if (ddt_phys_total_refcnt(dde) == 0) - ddt_remove(ddt, dde); - } - ddt_exit(ddt); - } - - VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, - refcnt ? 0 : spa_min_claim_txg(zcb->zcb_spa), - bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); -} - -/* ARGSUSED */ -static void -zdb_blkptr_done(zio_t *zio) -{ - spa_t *spa = zio->io_spa; - blkptr_t *bp = zio->io_bp; - int ioerr = zio->io_error; - zdb_cb_t *zcb = zio->io_private; - zbookmark_phys_t *zb = &zio->io_bookmark; - - abd_free(zio->io_abd); - - mutex_enter(&spa->spa_scrub_lock); - spa->spa_scrub_inflight--; - spa->spa_load_verify_ios--; - cv_broadcast(&spa->spa_scrub_io_cv); - - if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { - char blkbuf[BP_SPRINTF_LEN]; - - zcb->zcb_haderrors = 1; - zcb->zcb_errors[ioerr]++; - - if (dump_opt['b'] >= 2) - snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); - else - blkbuf[0] = '\0'; - - (void) printf("zdb_blkptr_cb: " - "Got error %d reading " - "<%llu, %llu, %lld, %llx> %s -- skipping\n", - ioerr, - (u_longlong_t)zb->zb_objset, - (u_longlong_t)zb->zb_object, - (u_longlong_t)zb->zb_level, - (u_longlong_t)zb->zb_blkid, - blkbuf); - } - mutex_exit(&spa->spa_scrub_lock); -} - -/* ARGSUSED */ -static int -zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, - const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) -{ - zdb_cb_t *zcb = arg; - dmu_object_type_t type; - boolean_t is_metadata; - - if (bp == NULL) - return (0); - - if (dump_opt['b'] >= 5 && bp->blk_birth > 0) { - char blkbuf[BP_SPRINTF_LEN]; - snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); - (void) printf("objset %llu object %llu " - "level %lld offset 0x%llx %s\n", - (u_longlong_t)zb->zb_objset, - (u_longlong_t)zb->zb_object, - (longlong_t)zb->zb_level, - (u_longlong_t)blkid2offset(dnp, bp, zb), - blkbuf); - } - - if (BP_IS_HOLE(bp)) - return (0); - - type = BP_GET_TYPE(bp); - - zdb_count_block(zcb, zilog, bp, - (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); - - is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); - - if (!BP_IS_EMBEDDED(bp) && - (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) { - size_t size = BP_GET_PSIZE(bp); - abd_t *abd = abd_alloc(size, B_FALSE); - int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; - - /* If it's an intent log block, failure is expected. */ - if (zb->zb_level == ZB_ZIL_LEVEL) - flags |= ZIO_FLAG_SPECULATIVE; - - mutex_enter(&spa->spa_scrub_lock); - while (spa->spa_load_verify_ios > max_inflight) - cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); - spa->spa_scrub_inflight++; - spa->spa_load_verify_ios++; - mutex_exit(&spa->spa_scrub_lock); - - zio_nowait(zio_read(NULL, spa, bp, abd, size, - zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); - } - - zcb->zcb_readfails = 0; - - /* only call gethrtime() every 100 blocks */ - static int iters; - if (++iters > 100) - iters = 0; - else - return (0); - - if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) { - uint64_t now = gethrtime(); - char buf[10]; - uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; - int kb_per_sec = - 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); - int sec_remaining = - (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; - - /* make sure nicenum has enough space */ - CTASSERT(sizeof (buf) >= NN_NUMBUF_SZ); - - zfs_nicenum(bytes, buf, sizeof (buf)); - (void) fprintf(stderr, - "\r%5s completed (%4dMB/s) " - "estimated time remaining: %uhr %02umin %02usec ", - buf, kb_per_sec / 1024, - sec_remaining / 60 / 60, - sec_remaining / 60 % 60, - sec_remaining % 60); - - zcb->zcb_lastprint = now; - } - - return (0); -} - -static void -zdb_leak(void *arg, uint64_t start, uint64_t size) -{ - vdev_t *vd = arg; - - (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", - (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); -} - -static metaslab_ops_t zdb_metaslab_ops = { - NULL /* alloc */ -}; - -static void -zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) -{ - ddt_bookmark_t ddb; - ddt_entry_t dde; - int error; - - ASSERT(!dump_opt['L']); - - bzero(&ddb, sizeof (ddb)); - while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { - blkptr_t blk; - ddt_phys_t *ddp = dde.dde_phys; - - if (ddb.ddb_class == DDT_CLASS_UNIQUE) - return; - - ASSERT(ddt_phys_total_refcnt(&dde) > 1); - - for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { - if (ddp->ddp_phys_birth == 0) - continue; - ddt_bp_create(ddb.ddb_checksum, - &dde.dde_key, ddp, &blk); - if (p == DDT_PHYS_DITTO) { - zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); - } else { - zcb->zcb_dedup_asize += - BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); - zcb->zcb_dedup_blocks++; - } - } - ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; - ddt_enter(ddt); - VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); - ddt_exit(ddt); - } - - ASSERT(error == ENOENT); -} - -/* ARGSUSED */ -static void -claim_segment_impl_cb(uint64_t inner_offset, vdev_t *vd, uint64_t offset, - uint64_t size, void *arg) -{ - /* - * This callback was called through a remap from - * a device being removed. Therefore, the vdev that - * this callback is applied to is a concrete - * vdev. - */ - ASSERT(vdev_is_concrete(vd)); - - VERIFY0(metaslab_claim_impl(vd, offset, size, - spa_min_claim_txg(vd->vdev_spa))); -} - -static void -claim_segment_cb(void *arg, uint64_t offset, uint64_t size) -{ - vdev_t *vd = arg; - - vdev_indirect_ops.vdev_op_remap(vd, offset, size, - claim_segment_impl_cb, NULL); -} - -/* - * After accounting for all allocated blocks that are directly referenced, - * we might have missed a reference to a block from a partially complete - * (and thus unused) indirect mapping object. We perform a secondary pass - * through the metaslabs we have already mapped and claim the destination - * blocks. - */ -static void -zdb_claim_removing(spa_t *spa, zdb_cb_t *zcb) -{ - if (dump_opt['L']) - return; - - if (spa->spa_vdev_removal == NULL) - return; - - spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); - - spa_vdev_removal_t *svr = spa->spa_vdev_removal; - vdev_t *vd = vdev_lookup_top(spa, svr->svr_vdev_id); - vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; - - for (uint64_t msi = 0; msi < vd->vdev_ms_count; msi++) { - metaslab_t *msp = vd->vdev_ms[msi]; - - if (msp->ms_start >= vdev_indirect_mapping_max_offset(vim)) - break; - - ASSERT0(range_tree_space(svr->svr_allocd_segs)); - - if (msp->ms_sm != NULL) { - VERIFY0(space_map_load(msp->ms_sm, - svr->svr_allocd_segs, SM_ALLOC)); - - /* - * Clear everything past what has been synced unless - * it's past the spacemap, because we have not allocated - * mappings for it yet. - */ - uint64_t vim_max_offset = - vdev_indirect_mapping_max_offset(vim); - uint64_t sm_end = msp->ms_sm->sm_start + - msp->ms_sm->sm_size; - if (sm_end > vim_max_offset) - range_tree_clear(svr->svr_allocd_segs, - vim_max_offset, sm_end - vim_max_offset); - } - - zcb->zcb_removing_size += - range_tree_space(svr->svr_allocd_segs); - range_tree_vacate(svr->svr_allocd_segs, claim_segment_cb, vd); - } - - spa_config_exit(spa, SCL_CONFIG, FTAG); -} - -/* ARGSUSED */ -static int -increment_indirect_mapping_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) -{ - zdb_cb_t *zcb = arg; - spa_t *spa = zcb->zcb_spa; - vdev_t *vd; - const dva_t *dva = &bp->blk_dva[0]; - - ASSERT(!dump_opt['L']); - ASSERT3U(BP_GET_NDVAS(bp), ==, 1); - - spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER); - vd = vdev_lookup_top(zcb->zcb_spa, DVA_GET_VDEV(dva)); - ASSERT3P(vd, !=, NULL); - spa_config_exit(spa, SCL_VDEV, FTAG); - - ASSERT(vd->vdev_indirect_config.vic_mapping_object != 0); - ASSERT3P(zcb->zcb_vd_obsolete_counts[vd->vdev_id], !=, NULL); - - vdev_indirect_mapping_increment_obsolete_count( - vd->vdev_indirect_mapping, - DVA_GET_OFFSET(dva), DVA_GET_ASIZE(dva), - zcb->zcb_vd_obsolete_counts[vd->vdev_id]); - - return (0); -} - -static uint32_t * -zdb_load_obsolete_counts(vdev_t *vd) -{ - vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; - spa_t *spa = vd->vdev_spa; - spa_condensing_indirect_phys_t *scip = - &spa->spa_condensing_indirect_phys; - uint32_t *counts; - - EQUIV(vdev_obsolete_sm_object(vd) != 0, vd->vdev_obsolete_sm != NULL); - counts = vdev_indirect_mapping_load_obsolete_counts(vim); - if (vd->vdev_obsolete_sm != NULL) { - vdev_indirect_mapping_load_obsolete_spacemap(vim, counts, - vd->vdev_obsolete_sm); - } - if (scip->scip_vdev == vd->vdev_id && - scip->scip_prev_obsolete_sm_object != 0) { - space_map_t *prev_obsolete_sm = NULL; - VERIFY0(space_map_open(&prev_obsolete_sm, spa->spa_meta_objset, - scip->scip_prev_obsolete_sm_object, 0, vd->vdev_asize, 0)); - vdev_indirect_mapping_load_obsolete_spacemap(vim, counts, - prev_obsolete_sm); - space_map_close(prev_obsolete_sm); - } - return (counts); -} - -typedef struct checkpoint_sm_exclude_entry_arg { - vdev_t *cseea_vd; - uint64_t cseea_checkpoint_size; -} checkpoint_sm_exclude_entry_arg_t; - -static int -checkpoint_sm_exclude_entry_cb(space_map_entry_t *sme, void *arg) -{ - checkpoint_sm_exclude_entry_arg_t *cseea = arg; - vdev_t *vd = cseea->cseea_vd; - metaslab_t *ms = vd->vdev_ms[sme->sme_offset >> vd->vdev_ms_shift]; - uint64_t end = sme->sme_offset + sme->sme_run; - - ASSERT(sme->sme_type == SM_FREE); - - /* - * Since the vdev_checkpoint_sm exists in the vdev level - * and the ms_sm space maps exist in the metaslab level, - * an entry in the checkpoint space map could theoretically - * cross the boundaries of the metaslab that it belongs. - * - * In reality, because of the way that we populate and - * manipulate the checkpoint's space maps currently, - * there shouldn't be any entries that cross metaslabs. - * Hence the assertion below. - * - * That said, there is no fundamental requirement that - * the checkpoint's space map entries should not cross - * metaslab boundaries. So if needed we could add code - * that handles metaslab-crossing segments in the future. - */ - VERIFY3U(sme->sme_offset, >=, ms->ms_start); - VERIFY3U(end, <=, ms->ms_start + ms->ms_size); - - /* - * By removing the entry from the allocated segments we - * also verify that the entry is there to begin with. - */ - mutex_enter(&ms->ms_lock); - range_tree_remove(ms->ms_allocatable, sme->sme_offset, sme->sme_run); - mutex_exit(&ms->ms_lock); - - cseea->cseea_checkpoint_size += sme->sme_run; - return (0); -} - -static void -zdb_leak_init_vdev_exclude_checkpoint(vdev_t *vd, zdb_cb_t *zcb) -{ - spa_t *spa = vd->vdev_spa; - space_map_t *checkpoint_sm = NULL; - uint64_t checkpoint_sm_obj; - - /* - * If there is no vdev_top_zap, we are in a pool whose - * version predates the pool checkpoint feature. - */ - if (vd->vdev_top_zap == 0) - return; - - /* - * If there is no reference of the vdev_checkpoint_sm in - * the vdev_top_zap, then one of the following scenarios - * is true: - * - * 1] There is no checkpoint - * 2] There is a checkpoint, but no checkpointed blocks - * have been freed yet - * 3] The current vdev is indirect - * - * In these cases we return immediately. - */ - if (zap_contains(spa_meta_objset(spa), vd->vdev_top_zap, - VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0) - return; - - VERIFY0(zap_lookup(spa_meta_objset(spa), vd->vdev_top_zap, - VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, sizeof (uint64_t), 1, - &checkpoint_sm_obj)); - - checkpoint_sm_exclude_entry_arg_t cseea; - cseea.cseea_vd = vd; - cseea.cseea_checkpoint_size = 0; - - VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(spa), - checkpoint_sm_obj, 0, vd->vdev_asize, vd->vdev_ashift)); - - VERIFY0(space_map_iterate(checkpoint_sm, - space_map_length(checkpoint_sm), - checkpoint_sm_exclude_entry_cb, &cseea)); - space_map_close(checkpoint_sm); - - zcb->zcb_checkpoint_size += cseea.cseea_checkpoint_size; -} - -static void -zdb_leak_init_exclude_checkpoint(spa_t *spa, zdb_cb_t *zcb) -{ - ASSERT(!dump_opt['L']); - - vdev_t *rvd = spa->spa_root_vdev; - for (uint64_t c = 0; c < rvd->vdev_children; c++) { - ASSERT3U(c, ==, rvd->vdev_child[c]->vdev_id); - zdb_leak_init_vdev_exclude_checkpoint(rvd->vdev_child[c], zcb); - } -} - -static void -load_concrete_ms_allocatable_trees(spa_t *spa, maptype_t maptype) -{ - vdev_t *rvd = spa->spa_root_vdev; - for (uint64_t i = 0; i < rvd->vdev_children; i++) { - vdev_t *vd = rvd->vdev_child[i]; - - ASSERT3U(i, ==, vd->vdev_id); - - if (vd->vdev_ops == &vdev_indirect_ops) - continue; - - for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { - metaslab_t *msp = vd->vdev_ms[m]; - - (void) fprintf(stderr, - "\rloading concrete vdev %llu, " - "metaslab %llu of %llu ...", - (longlong_t)vd->vdev_id, - (longlong_t)msp->ms_id, - (longlong_t)vd->vdev_ms_count); - - mutex_enter(&msp->ms_lock); - metaslab_unload(msp); - - /* - * We don't want to spend the CPU manipulating the - * size-ordered tree, so clear the range_tree ops. - */ - msp->ms_allocatable->rt_ops = NULL; - - if (msp->ms_sm != NULL) { - VERIFY0(space_map_load(msp->ms_sm, - msp->ms_allocatable, maptype)); - } - if (!msp->ms_loaded) - msp->ms_loaded = B_TRUE; - mutex_exit(&msp->ms_lock); - } - } -} - -/* - * vm_idxp is an in-out parameter which (for indirect vdevs) is the - * index in vim_entries that has the first entry in this metaslab. - * On return, it will be set to the first entry after this metaslab. - */ -static void -load_indirect_ms_allocatable_tree(vdev_t *vd, metaslab_t *msp, - uint64_t *vim_idxp) -{ - vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; - - mutex_enter(&msp->ms_lock); - metaslab_unload(msp); - - /* - * We don't want to spend the CPU manipulating the - * size-ordered tree, so clear the range_tree ops. - */ - msp->ms_allocatable->rt_ops = NULL; - - for (; *vim_idxp < vdev_indirect_mapping_num_entries(vim); - (*vim_idxp)++) { - vdev_indirect_mapping_entry_phys_t *vimep = - &vim->vim_entries[*vim_idxp]; - uint64_t ent_offset = DVA_MAPPING_GET_SRC_OFFSET(vimep); - uint64_t ent_len = DVA_GET_ASIZE(&vimep->vimep_dst); - ASSERT3U(ent_offset, >=, msp->ms_start); - if (ent_offset >= msp->ms_start + msp->ms_size) - break; - - /* - * Mappings do not cross metaslab boundaries, - * because we create them by walking the metaslabs. - */ - ASSERT3U(ent_offset + ent_len, <=, - msp->ms_start + msp->ms_size); - range_tree_add(msp->ms_allocatable, ent_offset, ent_len); - } - - if (!msp->ms_loaded) - msp->ms_loaded = B_TRUE; - mutex_exit(&msp->ms_lock); -} - -static void -zdb_leak_init_prepare_indirect_vdevs(spa_t *spa, zdb_cb_t *zcb) -{ - ASSERT(!dump_opt['L']); - - vdev_t *rvd = spa->spa_root_vdev; - for (uint64_t c = 0; c < rvd->vdev_children; c++) { - vdev_t *vd = rvd->vdev_child[c]; - - ASSERT3U(c, ==, vd->vdev_id); - - if (vd->vdev_ops != &vdev_indirect_ops) - continue; - - /* - * Note: we don't check for mapping leaks on - * removing vdevs because their ms_allocatable's - * are used to look for leaks in allocated space. - */ - zcb->zcb_vd_obsolete_counts[c] = zdb_load_obsolete_counts(vd); - - /* - * Normally, indirect vdevs don't have any - * metaslabs. We want to set them up for - * zio_claim(). - */ - VERIFY0(vdev_metaslab_init(vd, 0)); - - vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; - uint64_t vim_idx = 0; - for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { - - (void) fprintf(stderr, - "\rloading indirect vdev %llu, " - "metaslab %llu of %llu ...", - (longlong_t)vd->vdev_id, - (longlong_t)vd->vdev_ms[m]->ms_id, - (longlong_t)vd->vdev_ms_count); - - load_indirect_ms_allocatable_tree(vd, vd->vdev_ms[m], - &vim_idx); - } - ASSERT3U(vim_idx, ==, vdev_indirect_mapping_num_entries(vim)); - } -} - -static void -zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) -{ - zcb->zcb_spa = spa; - - if (dump_opt['L']) - return; - - dsl_pool_t *dp = spa->spa_dsl_pool; - vdev_t *rvd = spa->spa_root_vdev; - - /* - * We are going to be changing the meaning of the metaslab's - * ms_allocatable. Ensure that the allocator doesn't try to - * use the tree. - */ - spa->spa_normal_class->mc_ops = &zdb_metaslab_ops; - spa->spa_log_class->mc_ops = &zdb_metaslab_ops; - - zcb->zcb_vd_obsolete_counts = - umem_zalloc(rvd->vdev_children * sizeof (uint32_t *), - UMEM_NOFAIL); - - /* - * For leak detection, we overload the ms_allocatable trees - * to contain allocated segments instead of free segments. - * As a result, we can't use the normal metaslab_load/unload - * interfaces. - */ - zdb_leak_init_prepare_indirect_vdevs(spa, zcb); - load_concrete_ms_allocatable_trees(spa, SM_ALLOC); - - /* - * On load_concrete_ms_allocatable_trees() we loaded all the - * allocated entries from the ms_sm to the ms_allocatable for - * each metaslab. If the pool has a checkpoint or is in the - * middle of discarding a checkpoint, some of these blocks - * may have been freed but their ms_sm may not have been - * updated because they are referenced by the checkpoint. In - * order to avoid false-positives during leak-detection, we - * go through the vdev's checkpoint space map and exclude all - * its entries from their relevant ms_allocatable. - * - * We also aggregate the space held by the checkpoint and add - * it to zcb_checkpoint_size. - * - * Note that at this point we are also verifying that all the - * entries on the checkpoint_sm are marked as allocated in - * the ms_sm of their relevant metaslab. - * [see comment in checkpoint_sm_exclude_entry_cb()] - */ - zdb_leak_init_exclude_checkpoint(spa, zcb); - ASSERT3U(zcb->zcb_checkpoint_size, ==, spa_get_checkpoint_space(spa)); - - /* for cleaner progress output */ - (void) fprintf(stderr, "\n"); - - if (bpobj_is_open(&dp->dp_obsolete_bpobj)) { - ASSERT(spa_feature_is_enabled(spa, - SPA_FEATURE_DEVICE_REMOVAL)); - (void) bpobj_iterate_nofree(&dp->dp_obsolete_bpobj, - increment_indirect_mapping_cb, zcb, NULL); - } - - spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); - zdb_ddt_leak_init(spa, zcb); - spa_config_exit(spa, SCL_CONFIG, FTAG); -} - -static boolean_t -zdb_check_for_obsolete_leaks(vdev_t *vd, zdb_cb_t *zcb) -{ - boolean_t leaks = B_FALSE; - vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; - uint64_t total_leaked = 0; - - ASSERT(vim != NULL); - - for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) { - vdev_indirect_mapping_entry_phys_t *vimep = - &vim->vim_entries[i]; - uint64_t obsolete_bytes = 0; - uint64_t offset = DVA_MAPPING_GET_SRC_OFFSET(vimep); - metaslab_t *msp = vd->vdev_ms[offset >> vd->vdev_ms_shift]; - - /* - * This is not very efficient but it's easy to - * verify correctness. - */ - for (uint64_t inner_offset = 0; - inner_offset < DVA_GET_ASIZE(&vimep->vimep_dst); - inner_offset += 1 << vd->vdev_ashift) { - if (range_tree_contains(msp->ms_allocatable, - offset + inner_offset, 1 << vd->vdev_ashift)) { - obsolete_bytes += 1 << vd->vdev_ashift; - } - } - - int64_t bytes_leaked = obsolete_bytes - - zcb->zcb_vd_obsolete_counts[vd->vdev_id][i]; - ASSERT3U(DVA_GET_ASIZE(&vimep->vimep_dst), >=, - zcb->zcb_vd_obsolete_counts[vd->vdev_id][i]); - if (bytes_leaked != 0 && - (vdev_obsolete_counts_are_precise(vd) || - dump_opt['d'] >= 5)) { - (void) printf("obsolete indirect mapping count " - "mismatch on %llu:%llx:%llx : %llx bytes leaked\n", - (u_longlong_t)vd->vdev_id, - (u_longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep), - (u_longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst), - (u_longlong_t)bytes_leaked); - } - total_leaked += ABS(bytes_leaked); - } - - if (!vdev_obsolete_counts_are_precise(vd) && total_leaked > 0) { - int pct_leaked = total_leaked * 100 / - vdev_indirect_mapping_bytes_mapped(vim); - (void) printf("cannot verify obsolete indirect mapping " - "counts of vdev %llu because precise feature was not " - "enabled when it was removed: %d%% (%llx bytes) of mapping" - "unreferenced\n", - (u_longlong_t)vd->vdev_id, pct_leaked, - (u_longlong_t)total_leaked); - } else if (total_leaked > 0) { - (void) printf("obsolete indirect mapping count mismatch " - "for vdev %llu -- %llx total bytes mismatched\n", - (u_longlong_t)vd->vdev_id, - (u_longlong_t)total_leaked); - leaks |= B_TRUE; - } - - vdev_indirect_mapping_free_obsolete_counts(vim, - zcb->zcb_vd_obsolete_counts[vd->vdev_id]); - zcb->zcb_vd_obsolete_counts[vd->vdev_id] = NULL; - - return (leaks); -} - -static boolean_t -zdb_leak_fini(spa_t *spa, zdb_cb_t *zcb) -{ - if (dump_opt['L']) - return (B_FALSE); - - boolean_t leaks = B_FALSE; - - vdev_t *rvd = spa->spa_root_vdev; - for (unsigned c = 0; c < rvd->vdev_children; c++) { - vdev_t *vd = rvd->vdev_child[c]; -#if DEBUG - metaslab_group_t *mg = vd->vdev_mg; -#endif - - if (zcb->zcb_vd_obsolete_counts[c] != NULL) { - leaks |= zdb_check_for_obsolete_leaks(vd, zcb); - } - - for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { - metaslab_t *msp = vd->vdev_ms[m]; - ASSERT3P(mg, ==, msp->ms_group); - - /* - * ms_allocatable has been overloaded - * to contain allocated segments. Now that - * we finished traversing all blocks, any - * block that remains in the ms_allocatable - * represents an allocated block that we - * did not claim during the traversal. - * Claimed blocks would have been removed - * from the ms_allocatable. For indirect - * vdevs, space remaining in the tree - * represents parts of the mapping that are - * not referenced, which is not a bug. - */ - if (vd->vdev_ops == &vdev_indirect_ops) { - range_tree_vacate(msp->ms_allocatable, - NULL, NULL); - } else { - range_tree_vacate(msp->ms_allocatable, - zdb_leak, vd); - } - - if (msp->ms_loaded) { - msp->ms_loaded = B_FALSE; - } - } - - } - - umem_free(zcb->zcb_vd_obsolete_counts, - rvd->vdev_children * sizeof (uint32_t *)); - zcb->zcb_vd_obsolete_counts = NULL; - - return (leaks); -} - -/* ARGSUSED */ -static int -count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) -{ - zdb_cb_t *zcb = arg; - - if (dump_opt['b'] >= 5) { - char blkbuf[BP_SPRINTF_LEN]; - snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); - (void) printf("[%s] %s\n", - "deferred free", blkbuf); - } - zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); - return (0); -} - -static int -dump_block_stats(spa_t *spa) -{ - zdb_cb_t zcb; - zdb_blkstats_t *zb, *tzb; - uint64_t norm_alloc, norm_space, total_alloc, total_found; - int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; - boolean_t leaks = B_FALSE; - int err; - - bzero(&zcb, sizeof (zcb)); - (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", - (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", - (dump_opt['c'] == 1) ? "metadata " : "", - dump_opt['c'] ? "checksums " : "", - (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", - !dump_opt['L'] ? "nothing leaked " : ""); - - /* - * When leak detection is enabled we load all space maps as SM_ALLOC - * maps, then traverse the pool claiming each block we discover. If - * the pool is perfectly consistent, the segment trees will be empty - * when we're done. Anything left over is a leak; any block we can't - * claim (because it's not part of any space map) is a double - * allocation, reference to a freed block, or an unclaimed log block. - * - * When leak detection is disabled (-L option) we still traverse the - * pool claiming each block we discover, but we skip opening any space - * maps. - */ - bzero(&zcb, sizeof (zdb_cb_t)); - zdb_leak_init(spa, &zcb); - - /* - * If there's a deferred-free bplist, process that first. - */ - (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, - count_block_cb, &zcb, NULL); - - if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { - (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, - count_block_cb, &zcb, NULL); - } - - zdb_claim_removing(spa, &zcb); - - if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { - VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, - spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, - &zcb, NULL)); - } - - if (dump_opt['c'] > 1) - flags |= TRAVERSE_PREFETCH_DATA; - - zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); - zcb.zcb_totalasize += metaslab_class_get_alloc(spa_special_class(spa)); - zcb.zcb_totalasize += metaslab_class_get_alloc(spa_dedup_class(spa)); - zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); - err = traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); - - /* - * If we've traversed the data blocks then we need to wait for those - * I/Os to complete. We leverage "The Godfather" zio to wait on - * all async I/Os to complete. - */ - if (dump_opt['c']) { - for (int i = 0; i < max_ncpus; i++) { - (void) zio_wait(spa->spa_async_zio_root[i]); - spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL, - ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | - ZIO_FLAG_GODFATHER); - } - } - - /* - * Done after zio_wait() since zcb_haderrors is modified in - * zdb_blkptr_done() - */ - zcb.zcb_haderrors |= err; - - if (zcb.zcb_haderrors) { - (void) printf("\nError counts:\n\n"); - (void) printf("\t%5s %s\n", "errno", "count"); - for (int e = 0; e < 256; e++) { - if (zcb.zcb_errors[e] != 0) { - (void) printf("\t%5d %llu\n", - e, (u_longlong_t)zcb.zcb_errors[e]); - } - } - } - - /* - * Report any leaked segments. - */ - leaks |= zdb_leak_fini(spa, &zcb); - - tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; - - norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); - norm_space = metaslab_class_get_space(spa_normal_class(spa)); - - total_alloc = norm_alloc + - metaslab_class_get_alloc(spa_log_class(spa)) + - metaslab_class_get_alloc(spa_special_class(spa)) + - metaslab_class_get_alloc(spa_dedup_class(spa)); - total_found = tzb->zb_asize - zcb.zcb_dedup_asize + - zcb.zcb_removing_size + zcb.zcb_checkpoint_size; - - if (total_found == total_alloc && !dump_opt['L']) { - (void) printf("\n\tNo leaks (block sum matches space" - " maps exactly)\n"); - } else if (!dump_opt['L']) { - (void) printf("block traversal size %llu != alloc %llu " - "(%s %lld)\n", - (u_longlong_t)total_found, - (u_longlong_t)total_alloc, - (dump_opt['L']) ? "unreachable" : "leaked", - (longlong_t)(total_alloc - total_found)); - leaks = B_TRUE; - } - - if (tzb->zb_count == 0) - return (2); - - (void) printf("\n"); - (void) printf("\t%-16s %14llu\n", "bp count:", - (u_longlong_t)tzb->zb_count); - (void) printf("\t%-16s %14llu\n", "ganged count:", - (longlong_t)tzb->zb_gangs); - (void) printf("\t%-16s %14llu avg: %6llu\n", "bp logical:", - (u_longlong_t)tzb->zb_lsize, - (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); - (void) printf("\t%-16s %14llu avg: %6llu compression: %6.2f\n", - "bp physical:", (u_longlong_t)tzb->zb_psize, - (u_longlong_t)(tzb->zb_psize / tzb->zb_count), - (double)tzb->zb_lsize / tzb->zb_psize); - (void) printf("\t%-16s %14llu avg: %6llu compression: %6.2f\n", - "bp allocated:", (u_longlong_t)tzb->zb_asize, - (u_longlong_t)(tzb->zb_asize / tzb->zb_count), - (double)tzb->zb_lsize / tzb->zb_asize); - (void) printf("\t%-16s %14llu ref>1: %6llu deduplication: %6.2f\n", - "bp deduped:", (u_longlong_t)zcb.zcb_dedup_asize, - (u_longlong_t)zcb.zcb_dedup_blocks, - (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); - (void) printf("\t%-16s %14llu used: %5.2f%%\n", "Normal class:", - (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); - - if (spa_special_class(spa)->mc_rotor != NULL) { - uint64_t alloc = metaslab_class_get_alloc( - spa_special_class(spa)); - uint64_t space = metaslab_class_get_space( - spa_special_class(spa)); - - (void) printf("\t%-16s %14llu used: %5.2f%%\n", - "Special class", (u_longlong_t)alloc, - 100.0 * alloc / space); - } - - if (spa_dedup_class(spa)->mc_rotor != NULL) { - uint64_t alloc = metaslab_class_get_alloc( - spa_dedup_class(spa)); - uint64_t space = metaslab_class_get_space( - spa_dedup_class(spa)); - - (void) printf("\t%-16s %14llu used: %5.2f%%\n", - "Dedup class", (u_longlong_t)alloc, - 100.0 * alloc / space); - } - - for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) { - if (zcb.zcb_embedded_blocks[i] == 0) - continue; - (void) printf("\n"); - (void) printf("\tadditional, non-pointer bps of type %u: " - "%10llu\n", - i, (u_longlong_t)zcb.zcb_embedded_blocks[i]); - - if (dump_opt['b'] >= 3) { - (void) printf("\t number of (compressed) bytes: " - "number of bps\n"); - dump_histogram(zcb.zcb_embedded_histogram[i], - sizeof (zcb.zcb_embedded_histogram[i]) / - sizeof (zcb.zcb_embedded_histogram[i][0]), 0); - } - } - - if (tzb->zb_ditto_samevdev != 0) { - (void) printf("\tDittoed blocks on same vdev: %llu\n", - (longlong_t)tzb->zb_ditto_samevdev); - } - if (tzb->zb_ditto_same_ms != 0) { - (void) printf("\tDittoed blocks in same metaslab: %llu\n", - (longlong_t)tzb->zb_ditto_same_ms); - } - - for (uint64_t v = 0; v < spa->spa_root_vdev->vdev_children; v++) { - vdev_t *vd = spa->spa_root_vdev->vdev_child[v]; - vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; - - if (vim == NULL) { - continue; - } - - char mem[32]; - zdb_nicenum(vdev_indirect_mapping_num_entries(vim), - mem, vdev_indirect_mapping_size(vim)); - - (void) printf("\tindirect vdev id %llu has %llu segments " - "(%s in memory)\n", - (longlong_t)vd->vdev_id, - (longlong_t)vdev_indirect_mapping_num_entries(vim), mem); - } - - if (dump_opt['b'] >= 2) { - int l, t, level; - (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" - "\t avg\t comp\t%%Total\tType\n"); - - for (t = 0; t <= ZDB_OT_TOTAL; t++) { - char csize[32], lsize[32], psize[32], asize[32]; - char avg[32], gang[32]; - const char *typename; - - /* make sure nicenum has enough space */ - CTASSERT(sizeof (csize) >= NN_NUMBUF_SZ); - CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ); - CTASSERT(sizeof (psize) >= NN_NUMBUF_SZ); - CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ); - CTASSERT(sizeof (avg) >= NN_NUMBUF_SZ); - CTASSERT(sizeof (gang) >= NN_NUMBUF_SZ); - - if (t < DMU_OT_NUMTYPES) - typename = dmu_ot[t].ot_name; - else - typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; - - if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { - (void) printf("%6s\t%5s\t%5s\t%5s" - "\t%5s\t%5s\t%6s\t%s\n", - "-", - "-", - "-", - "-", - "-", - "-", - "-", - typename); - continue; - } - - for (l = ZB_TOTAL - 1; l >= -1; l--) { - level = (l == -1 ? ZB_TOTAL : l); - zb = &zcb.zcb_type[level][t]; - - if (zb->zb_asize == 0) - continue; - - if (dump_opt['b'] < 3 && level != ZB_TOTAL) - continue; - - if (level == 0 && zb->zb_asize == - zcb.zcb_type[ZB_TOTAL][t].zb_asize) - continue; - - zdb_nicenum(zb->zb_count, csize, - sizeof (csize)); - zdb_nicenum(zb->zb_lsize, lsize, - sizeof (lsize)); - zdb_nicenum(zb->zb_psize, psize, - sizeof (psize)); - zdb_nicenum(zb->zb_asize, asize, - sizeof (asize)); - zdb_nicenum(zb->zb_asize / zb->zb_count, avg, - sizeof (avg)); - zdb_nicenum(zb->zb_gangs, gang, sizeof (gang)); - - (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" - "\t%5.2f\t%6.2f\t", - csize, lsize, psize, asize, avg, - (double)zb->zb_lsize / zb->zb_psize, - 100.0 * zb->zb_asize / tzb->zb_asize); - - if (level == ZB_TOTAL) - (void) printf("%s\n", typename); - else - (void) printf(" L%d %s\n", - level, typename); - - if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { - (void) printf("\t number of ganged " - "blocks: %s\n", gang); - } - - if (dump_opt['b'] >= 4) { - (void) printf("psize " - "(in 512-byte sectors): " - "number of blocks\n"); - dump_histogram(zb->zb_psize_histogram, - PSIZE_HISTO_SIZE, 0); - } - } - } - } - - (void) printf("\n"); - - if (leaks) - return (2); - - if (zcb.zcb_haderrors) - return (3); - - return (0); -} - -typedef struct zdb_ddt_entry { - ddt_key_t zdde_key; - uint64_t zdde_ref_blocks; - uint64_t zdde_ref_lsize; - uint64_t zdde_ref_psize; - uint64_t zdde_ref_dsize; - avl_node_t zdde_node; -} zdb_ddt_entry_t; - -/* ARGSUSED */ -static int -zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, - const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) -{ - avl_tree_t *t = arg; - avl_index_t where; - zdb_ddt_entry_t *zdde, zdde_search; - - if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp)) - return (0); - - if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { - (void) printf("traversing objset %llu, %llu objects, " - "%lu blocks so far\n", - (u_longlong_t)zb->zb_objset, - (u_longlong_t)BP_GET_FILL(bp), - avl_numnodes(t)); - } - - if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || - BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) - return (0); - - ddt_key_fill(&zdde_search.zdde_key, bp); - - zdde = avl_find(t, &zdde_search, &where); - - if (zdde == NULL) { - zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); - zdde->zdde_key = zdde_search.zdde_key; - avl_insert(t, zdde, where); - } - - zdde->zdde_ref_blocks += 1; - zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); - zdde->zdde_ref_psize += BP_GET_PSIZE(bp); - zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); - - return (0); -} - -static void -dump_simulated_ddt(spa_t *spa) -{ - avl_tree_t t; - void *cookie = NULL; - zdb_ddt_entry_t *zdde; - ddt_histogram_t ddh_total; - ddt_stat_t dds_total; - - bzero(&ddh_total, sizeof (ddh_total)); - bzero(&dds_total, sizeof (dds_total)); - avl_create(&t, ddt_entry_compare, - sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); - - spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); - - (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, - zdb_ddt_add_cb, &t); - - spa_config_exit(spa, SCL_CONFIG, FTAG); - - while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { - ddt_stat_t dds; - uint64_t refcnt = zdde->zdde_ref_blocks; - ASSERT(refcnt != 0); - - dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; - dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; - dds.dds_psize = zdde->zdde_ref_psize / refcnt; - dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; - - dds.dds_ref_blocks = zdde->zdde_ref_blocks; - dds.dds_ref_lsize = zdde->zdde_ref_lsize; - dds.dds_ref_psize = zdde->zdde_ref_psize; - dds.dds_ref_dsize = zdde->zdde_ref_dsize; - - ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1], - &dds, 0); - - umem_free(zdde, sizeof (*zdde)); - } - - avl_destroy(&t); - - ddt_histogram_stat(&dds_total, &ddh_total); - - (void) printf("Simulated DDT histogram:\n"); - - zpool_dump_ddt(&dds_total, &ddh_total); - - dump_dedup_ratio(&dds_total); -} - -static int -verify_device_removal_feature_counts(spa_t *spa) -{ - uint64_t dr_feature_refcount = 0; - uint64_t oc_feature_refcount = 0; - uint64_t indirect_vdev_count = 0; - uint64_t precise_vdev_count = 0; - uint64_t obsolete_counts_object_count = 0; - uint64_t obsolete_sm_count = 0; - uint64_t obsolete_counts_count = 0; - uint64_t scip_count = 0; - uint64_t obsolete_bpobj_count = 0; - int ret = 0; - - spa_condensing_indirect_phys_t *scip = - &spa->spa_condensing_indirect_phys; - if (scip->scip_next_mapping_object != 0) { - vdev_t *vd = spa->spa_root_vdev->vdev_child[scip->scip_vdev]; - ASSERT(scip->scip_prev_obsolete_sm_object != 0); - ASSERT3P(vd->vdev_ops, ==, &vdev_indirect_ops); - - (void) printf("Condensing indirect vdev %llu: new mapping " - "object %llu, prev obsolete sm %llu\n", - (u_longlong_t)scip->scip_vdev, - (u_longlong_t)scip->scip_next_mapping_object, - (u_longlong_t)scip->scip_prev_obsolete_sm_object); - if (scip->scip_prev_obsolete_sm_object != 0) { - space_map_t *prev_obsolete_sm = NULL; - VERIFY0(space_map_open(&prev_obsolete_sm, - spa->spa_meta_objset, - scip->scip_prev_obsolete_sm_object, - 0, vd->vdev_asize, 0)); - dump_spacemap(spa->spa_meta_objset, prev_obsolete_sm); - (void) printf("\n"); - space_map_close(prev_obsolete_sm); - } - - scip_count += 2; - } - - for (uint64_t i = 0; i < spa->spa_root_vdev->vdev_children; i++) { - vdev_t *vd = spa->spa_root_vdev->vdev_child[i]; - vdev_indirect_config_t *vic = &vd->vdev_indirect_config; - - if (vic->vic_mapping_object != 0) { - ASSERT(vd->vdev_ops == &vdev_indirect_ops || - vd->vdev_removing); - indirect_vdev_count++; - - if (vd->vdev_indirect_mapping->vim_havecounts) { - obsolete_counts_count++; - } - } - if (vdev_obsolete_counts_are_precise(vd)) { - ASSERT(vic->vic_mapping_object != 0); - precise_vdev_count++; - } - if (vdev_obsolete_sm_object(vd) != 0) { - ASSERT(vic->vic_mapping_object != 0); - obsolete_sm_count++; - } - } - - (void) feature_get_refcount(spa, - &spa_feature_table[SPA_FEATURE_DEVICE_REMOVAL], - &dr_feature_refcount); - (void) feature_get_refcount(spa, - &spa_feature_table[SPA_FEATURE_OBSOLETE_COUNTS], - &oc_feature_refcount); - - if (dr_feature_refcount != indirect_vdev_count) { - ret = 1; - (void) printf("Number of indirect vdevs (%llu) " \ - "does not match feature count (%llu)\n", - (u_longlong_t)indirect_vdev_count, - (u_longlong_t)dr_feature_refcount); - } else { - (void) printf("Verified device_removal feature refcount " \ - "of %llu is correct\n", - (u_longlong_t)dr_feature_refcount); - } - - if (zap_contains(spa_meta_objset(spa), DMU_POOL_DIRECTORY_OBJECT, - DMU_POOL_OBSOLETE_BPOBJ) == 0) { - obsolete_bpobj_count++; - } - - - obsolete_counts_object_count = precise_vdev_count; - obsolete_counts_object_count += obsolete_sm_count; - obsolete_counts_object_count += obsolete_counts_count; - obsolete_counts_object_count += scip_count; - obsolete_counts_object_count += obsolete_bpobj_count; - obsolete_counts_object_count += remap_deadlist_count; - - if (oc_feature_refcount != obsolete_counts_object_count) { - ret = 1; - (void) printf("Number of obsolete counts objects (%llu) " \ - "does not match feature count (%llu)\n", - (u_longlong_t)obsolete_counts_object_count, - (u_longlong_t)oc_feature_refcount); - (void) printf("pv:%llu os:%llu oc:%llu sc:%llu " - "ob:%llu rd:%llu\n", - (u_longlong_t)precise_vdev_count, - (u_longlong_t)obsolete_sm_count, - (u_longlong_t)obsolete_counts_count, - (u_longlong_t)scip_count, - (u_longlong_t)obsolete_bpobj_count, - (u_longlong_t)remap_deadlist_count); - } else { - (void) printf("Verified indirect_refcount feature refcount " \ - "of %llu is correct\n", - (u_longlong_t)oc_feature_refcount); - } - return (ret); -} - -static void -zdb_set_skip_mmp(char *target) -{ - spa_t *spa; - - /* - * Disable the activity check to allow examination of - * active pools. - */ - mutex_enter(&spa_namespace_lock); - if ((spa = spa_lookup(target)) != NULL) { - spa->spa_import_flags |= ZFS_IMPORT_SKIP_MMP; - } - mutex_exit(&spa_namespace_lock); -} - -#define BOGUS_SUFFIX "_CHECKPOINTED_UNIVERSE" -/* - * Import the checkpointed state of the pool specified by the target - * parameter as readonly. The function also accepts a pool config - * as an optional parameter, else it attempts to infer the config by - * the name of the target pool. - * - * Note that the checkpointed state's pool name will be the name of - * the original pool with the above suffix appened to it. In addition, - * if the target is not a pool name (e.g. a path to a dataset) then - * the new_path parameter is populated with the updated path to - * reflect the fact that we are looking into the checkpointed state. - * - * The function returns a newly-allocated copy of the name of the - * pool containing the checkpointed state. When this copy is no - * longer needed it should be freed with free(3C). Same thing - * applies to the new_path parameter if allocated. - */ -static char * -import_checkpointed_state(char *target, nvlist_t *cfg, char **new_path) -{ - int error = 0; - char *poolname, *bogus_name; - - /* If the target is not a pool, the extract the pool name */ - char *path_start = strchr(target, '/'); - if (path_start != NULL) { - size_t poolname_len = path_start - target; - poolname = strndup(target, poolname_len); - } else { - poolname = target; - } - - if (cfg == NULL) { - zdb_set_skip_mmp(poolname); - error = spa_get_stats(poolname, &cfg, NULL, 0); - if (error != 0) { - fatal("Tried to read config of pool \"%s\" but " - "spa_get_stats() failed with error %d\n", - poolname, error); - } - } - - (void) asprintf(&bogus_name, "%s%s", poolname, BOGUS_SUFFIX); - fnvlist_add_string(cfg, ZPOOL_CONFIG_POOL_NAME, bogus_name); - - error = spa_import(bogus_name, cfg, NULL, - ZFS_IMPORT_MISSING_LOG | ZFS_IMPORT_CHECKPOINT | - ZFS_IMPORT_SKIP_MMP); - if (error != 0) { - fatal("Tried to import pool \"%s\" but spa_import() failed " - "with error %d\n", bogus_name, error); - } - - if (new_path != NULL && path_start != NULL) - (void) asprintf(new_path, "%s%s", bogus_name, path_start); - - if (target != poolname) - free(poolname); - - return (bogus_name); -} - -typedef struct verify_checkpoint_sm_entry_cb_arg { - vdev_t *vcsec_vd; - - /* the following fields are only used for printing progress */ - uint64_t vcsec_entryid; - uint64_t vcsec_num_entries; -} verify_checkpoint_sm_entry_cb_arg_t; - -#define ENTRIES_PER_PROGRESS_UPDATE 10000 - -static int -verify_checkpoint_sm_entry_cb(space_map_entry_t *sme, void *arg) -{ - verify_checkpoint_sm_entry_cb_arg_t *vcsec = arg; - vdev_t *vd = vcsec->vcsec_vd; - metaslab_t *ms = vd->vdev_ms[sme->sme_offset >> vd->vdev_ms_shift]; - uint64_t end = sme->sme_offset + sme->sme_run; - - ASSERT(sme->sme_type == SM_FREE); - - if ((vcsec->vcsec_entryid % ENTRIES_PER_PROGRESS_UPDATE) == 0) { - (void) fprintf(stderr, - "\rverifying vdev %llu, space map entry %llu of %llu ...", - (longlong_t)vd->vdev_id, - (longlong_t)vcsec->vcsec_entryid, - (longlong_t)vcsec->vcsec_num_entries); - } - vcsec->vcsec_entryid++; - - /* - * See comment in checkpoint_sm_exclude_entry_cb() - */ - VERIFY3U(sme->sme_offset, >=, ms->ms_start); - VERIFY3U(end, <=, ms->ms_start + ms->ms_size); - - /* - * The entries in the vdev_checkpoint_sm should be marked as - * allocated in the checkpointed state of the pool, therefore - * their respective ms_allocateable trees should not contain them. - */ - mutex_enter(&ms->ms_lock); - range_tree_verify_not_present(ms->ms_allocatable, - sme->sme_offset, sme->sme_run); - mutex_exit(&ms->ms_lock); - - return (0); -} - -/* - * Verify that all segments in the vdev_checkpoint_sm are allocated - * according to the checkpoint's ms_sm (i.e. are not in the checkpoint's - * ms_allocatable). - * - * Do so by comparing the checkpoint space maps (vdev_checkpoint_sm) of - * each vdev in the current state of the pool to the metaslab space maps - * (ms_sm) of the checkpointed state of the pool. - * - * Note that the function changes the state of the ms_allocatable - * trees of the current spa_t. The entries of these ms_allocatable - * trees are cleared out and then repopulated from with the free - * entries of their respective ms_sm space maps. - */ -static void -verify_checkpoint_vdev_spacemaps(spa_t *checkpoint, spa_t *current) -{ - vdev_t *ckpoint_rvd = checkpoint->spa_root_vdev; - vdev_t *current_rvd = current->spa_root_vdev; - - load_concrete_ms_allocatable_trees(checkpoint, SM_FREE); - - for (uint64_t c = 0; c < ckpoint_rvd->vdev_children; c++) { - vdev_t *ckpoint_vd = ckpoint_rvd->vdev_child[c]; - vdev_t *current_vd = current_rvd->vdev_child[c]; - - space_map_t *checkpoint_sm = NULL; - uint64_t checkpoint_sm_obj; - - if (ckpoint_vd->vdev_ops == &vdev_indirect_ops) { - /* - * Since we don't allow device removal in a pool - * that has a checkpoint, we expect that all removed - * vdevs were removed from the pool before the - * checkpoint. - */ - ASSERT3P(current_vd->vdev_ops, ==, &vdev_indirect_ops); - continue; - } - - /* - * If the checkpoint space map doesn't exist, then nothing - * here is checkpointed so there's nothing to verify. - */ - if (current_vd->vdev_top_zap == 0 || - zap_contains(spa_meta_objset(current), - current_vd->vdev_top_zap, - VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0) - continue; - - VERIFY0(zap_lookup(spa_meta_objset(current), - current_vd->vdev_top_zap, VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, - sizeof (uint64_t), 1, &checkpoint_sm_obj)); - - VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(current), - checkpoint_sm_obj, 0, current_vd->vdev_asize, - current_vd->vdev_ashift)); - - verify_checkpoint_sm_entry_cb_arg_t vcsec; - vcsec.vcsec_vd = ckpoint_vd; - vcsec.vcsec_entryid = 0; - vcsec.vcsec_num_entries = - space_map_length(checkpoint_sm) / sizeof (uint64_t); - VERIFY0(space_map_iterate(checkpoint_sm, - space_map_length(checkpoint_sm), - verify_checkpoint_sm_entry_cb, &vcsec)); - dump_spacemap(current->spa_meta_objset, checkpoint_sm); - space_map_close(checkpoint_sm); - } - - /* - * If we've added vdevs since we took the checkpoint, ensure - * that their checkpoint space maps are empty. - */ - if (ckpoint_rvd->vdev_children < current_rvd->vdev_children) { - for (uint64_t c = ckpoint_rvd->vdev_children; - c < current_rvd->vdev_children; c++) { - vdev_t *current_vd = current_rvd->vdev_child[c]; - ASSERT3P(current_vd->vdev_checkpoint_sm, ==, NULL); - } - } - - /* for cleaner progress output */ - (void) fprintf(stderr, "\n"); -} - -/* - * Verifies that all space that's allocated in the checkpoint is - * still allocated in the current version, by checking that everything - * in checkpoint's ms_allocatable (which is actually allocated, not - * allocatable/free) is not present in current's ms_allocatable. - * - * Note that the function changes the state of the ms_allocatable - * trees of both spas when called. The entries of all ms_allocatable - * trees are cleared out and then repopulated from their respective - * ms_sm space maps. In the checkpointed state we load the allocated - * entries, and in the current state we load the free entries. - */ -static void -verify_checkpoint_ms_spacemaps(spa_t *checkpoint, spa_t *current) -{ - vdev_t *ckpoint_rvd = checkpoint->spa_root_vdev; - vdev_t *current_rvd = current->spa_root_vdev; - - load_concrete_ms_allocatable_trees(checkpoint, SM_ALLOC); - load_concrete_ms_allocatable_trees(current, SM_FREE); - - for (uint64_t i = 0; i < ckpoint_rvd->vdev_children; i++) { - vdev_t *ckpoint_vd = ckpoint_rvd->vdev_child[i]; - vdev_t *current_vd = current_rvd->vdev_child[i]; - - if (ckpoint_vd->vdev_ops == &vdev_indirect_ops) { - /* - * See comment in verify_checkpoint_vdev_spacemaps() - */ - ASSERT3P(current_vd->vdev_ops, ==, &vdev_indirect_ops); - continue; - } - - for (uint64_t m = 0; m < ckpoint_vd->vdev_ms_count; m++) { - metaslab_t *ckpoint_msp = ckpoint_vd->vdev_ms[m]; - metaslab_t *current_msp = current_vd->vdev_ms[m]; - - (void) fprintf(stderr, - "\rverifying vdev %llu of %llu, " - "metaslab %llu of %llu ...", - (longlong_t)current_vd->vdev_id, - (longlong_t)current_rvd->vdev_children, - (longlong_t)current_vd->vdev_ms[m]->ms_id, - (longlong_t)current_vd->vdev_ms_count); - - /* - * We walk through the ms_allocatable trees that - * are loaded with the allocated blocks from the - * ms_sm spacemaps of the checkpoint. For each - * one of these ranges we ensure that none of them - * exists in the ms_allocatable trees of the - * current state which are loaded with the ranges - * that are currently free. - * - * This way we ensure that none of the blocks that - * are part of the checkpoint were freed by mistake. - */ - range_tree_walk(ckpoint_msp->ms_allocatable, - (range_tree_func_t *)range_tree_verify_not_present, - current_msp->ms_allocatable); - } - } - - /* for cleaner progress output */ - (void) fprintf(stderr, "\n"); -} - -static void -verify_checkpoint_blocks(spa_t *spa) -{ - ASSERT(!dump_opt['L']); - - spa_t *checkpoint_spa; - char *checkpoint_pool; - nvlist_t *config = NULL; - int error = 0; - - /* - * We import the checkpointed state of the pool (under a different - * name) so we can do verification on it against the current state - * of the pool. - */ - checkpoint_pool = import_checkpointed_state(spa->spa_name, config, - NULL); - ASSERT(strcmp(spa->spa_name, checkpoint_pool) != 0); - - error = spa_open(checkpoint_pool, &checkpoint_spa, FTAG); - if (error != 0) { - fatal("Tried to open pool \"%s\" but spa_open() failed with " - "error %d\n", checkpoint_pool, error); - } - - /* - * Ensure that ranges in the checkpoint space maps of each vdev - * are allocated according to the checkpointed state's metaslab - * space maps. - */ - verify_checkpoint_vdev_spacemaps(checkpoint_spa, spa); - - /* - * Ensure that allocated ranges in the checkpoint's metaslab - * space maps remain allocated in the metaslab space maps of - * the current state. - */ - verify_checkpoint_ms_spacemaps(checkpoint_spa, spa); - - /* - * Once we are done, we get rid of the checkpointed state. - */ - spa_close(checkpoint_spa, FTAG); - free(checkpoint_pool); -} - -static void -dump_leftover_checkpoint_blocks(spa_t *spa) -{ - vdev_t *rvd = spa->spa_root_vdev; - - for (uint64_t i = 0; i < rvd->vdev_children; i++) { - vdev_t *vd = rvd->vdev_child[i]; - - space_map_t *checkpoint_sm = NULL; - uint64_t checkpoint_sm_obj; - - if (vd->vdev_top_zap == 0) - continue; - - if (zap_contains(spa_meta_objset(spa), vd->vdev_top_zap, - VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0) - continue; - - VERIFY0(zap_lookup(spa_meta_objset(spa), vd->vdev_top_zap, - VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, - sizeof (uint64_t), 1, &checkpoint_sm_obj)); - - VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(spa), - checkpoint_sm_obj, 0, vd->vdev_asize, vd->vdev_ashift)); - dump_spacemap(spa->spa_meta_objset, checkpoint_sm); - space_map_close(checkpoint_sm); - } -} - -static int -verify_checkpoint(spa_t *spa) -{ - uberblock_t checkpoint; - int error; - - if (!spa_feature_is_active(spa, SPA_FEATURE_POOL_CHECKPOINT)) - return (0); - - error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, - DMU_POOL_ZPOOL_CHECKPOINT, sizeof (uint64_t), - sizeof (uberblock_t) / sizeof (uint64_t), &checkpoint); - - if (error == ENOENT && !dump_opt['L']) { - /* - * If the feature is active but the uberblock is missing - * then we must be in the middle of discarding the - * checkpoint. - */ - (void) printf("\nPartially discarded checkpoint " - "state found:\n"); - dump_leftover_checkpoint_blocks(spa); - return (0); - } else if (error != 0) { - (void) printf("lookup error %d when looking for " - "checkpointed uberblock in MOS\n", error); - return (error); - } - dump_uberblock(&checkpoint, "\nCheckpointed uberblock found:\n", "\n"); - - if (checkpoint.ub_checkpoint_txg == 0) { - (void) printf("\nub_checkpoint_txg not set in checkpointed " - "uberblock\n"); - error = 3; - } - - if (error == 0 && !dump_opt['L']) - verify_checkpoint_blocks(spa); - - return (error); -} - -/* ARGSUSED */ -static void -mos_leaks_cb(void *arg, uint64_t start, uint64_t size) -{ - for (uint64_t i = start; i < size; i++) { - (void) printf("MOS object %llu referenced but not allocated\n", - (u_longlong_t)i); - } -} - -static range_tree_t *mos_refd_objs; - -static void -mos_obj_refd(uint64_t obj) -{ - if (obj != 0 && mos_refd_objs != NULL) - range_tree_add(mos_refd_objs, obj, 1); -} - -static void -mos_leak_vdev(vdev_t *vd) -{ - mos_obj_refd(vd->vdev_dtl_object); - mos_obj_refd(vd->vdev_ms_array); - mos_obj_refd(vd->vdev_top_zap); - mos_obj_refd(vd->vdev_indirect_config.vic_births_object); - mos_obj_refd(vd->vdev_indirect_config.vic_mapping_object); - mos_obj_refd(vd->vdev_leaf_zap); - if (vd->vdev_checkpoint_sm != NULL) - mos_obj_refd(vd->vdev_checkpoint_sm->sm_object); - if (vd->vdev_indirect_mapping != NULL) { - mos_obj_refd(vd->vdev_indirect_mapping-> - vim_phys->vimp_counts_object); - } - if (vd->vdev_obsolete_sm != NULL) - mos_obj_refd(vd->vdev_obsolete_sm->sm_object); - - for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { - metaslab_t *ms = vd->vdev_ms[m]; - mos_obj_refd(space_map_object(ms->ms_sm)); - } - - for (uint64_t c = 0; c < vd->vdev_children; c++) { - mos_leak_vdev(vd->vdev_child[c]); - } -} - -static int -dump_mos_leaks(spa_t *spa) -{ - int rv = 0; - objset_t *mos = spa->spa_meta_objset; - dsl_pool_t *dp = spa->spa_dsl_pool; - - /* Visit and mark all referenced objects in the MOS */ - - mos_obj_refd(DMU_POOL_DIRECTORY_OBJECT); - mos_obj_refd(spa->spa_pool_props_object); - mos_obj_refd(spa->spa_config_object); - mos_obj_refd(spa->spa_ddt_stat_object); - mos_obj_refd(spa->spa_feat_desc_obj); - mos_obj_refd(spa->spa_feat_enabled_txg_obj); - mos_obj_refd(spa->spa_feat_for_read_obj); - mos_obj_refd(spa->spa_feat_for_write_obj); - mos_obj_refd(spa->spa_history); - mos_obj_refd(spa->spa_errlog_last); - mos_obj_refd(spa->spa_errlog_scrub); - mos_obj_refd(spa->spa_all_vdev_zaps); - mos_obj_refd(spa->spa_dsl_pool->dp_bptree_obj); - mos_obj_refd(spa->spa_dsl_pool->dp_tmp_userrefs_obj); - mos_obj_refd(spa->spa_dsl_pool->dp_scan->scn_phys.scn_queue_obj); - bpobj_count_refd(&spa->spa_deferred_bpobj); - mos_obj_refd(dp->dp_empty_bpobj); - bpobj_count_refd(&dp->dp_obsolete_bpobj); - bpobj_count_refd(&dp->dp_free_bpobj); - mos_obj_refd(spa->spa_l2cache.sav_object); - mos_obj_refd(spa->spa_spares.sav_object); - - mos_obj_refd(spa->spa_condensing_indirect_phys. - scip_next_mapping_object); - mos_obj_refd(spa->spa_condensing_indirect_phys. - scip_prev_obsolete_sm_object); - if (spa->spa_condensing_indirect_phys.scip_next_mapping_object != 0) { - vdev_indirect_mapping_t *vim = - vdev_indirect_mapping_open(mos, - spa->spa_condensing_indirect_phys.scip_next_mapping_object); - mos_obj_refd(vim->vim_phys->vimp_counts_object); - vdev_indirect_mapping_close(vim); - } - - if (dp->dp_origin_snap != NULL) { - dsl_dataset_t *ds; - - dsl_pool_config_enter(dp, FTAG); - VERIFY0(dsl_dataset_hold_obj(dp, - dsl_dataset_phys(dp->dp_origin_snap)->ds_next_snap_obj, - FTAG, &ds)); - count_ds_mos_objects(ds); - dump_deadlist(&ds->ds_deadlist); - dsl_dataset_rele(ds, FTAG); - dsl_pool_config_exit(dp, FTAG); - - count_ds_mos_objects(dp->dp_origin_snap); - dump_deadlist(&dp->dp_origin_snap->ds_deadlist); - } - count_dir_mos_objects(dp->dp_mos_dir); - if (dp->dp_free_dir != NULL) - count_dir_mos_objects(dp->dp_free_dir); - if (dp->dp_leak_dir != NULL) - count_dir_mos_objects(dp->dp_leak_dir); - - mos_leak_vdev(spa->spa_root_vdev); - - for (uint64_t class = 0; class < DDT_CLASSES; class++) { - for (uint64_t type = 0; type < DDT_TYPES; type++) { - for (uint64_t cksum = 0; - cksum < ZIO_CHECKSUM_FUNCTIONS; cksum++) { - ddt_t *ddt = spa->spa_ddt[cksum]; - mos_obj_refd(ddt->ddt_object[type][class]); - } - } - } - - /* - * Visit all allocated objects and make sure they are referenced. - */ - uint64_t object = 0; - while (dmu_object_next(mos, &object, B_FALSE, 0) == 0) { - if (range_tree_contains(mos_refd_objs, object, 1)) { - range_tree_remove(mos_refd_objs, object, 1); - } else { - dmu_object_info_t doi; - const char *name; - dmu_object_info(mos, object, &doi); - if (doi.doi_type & DMU_OT_NEWTYPE) { - dmu_object_byteswap_t bswap = - DMU_OT_BYTESWAP(doi.doi_type); - name = dmu_ot_byteswap[bswap].ob_name; - } else { - name = dmu_ot[doi.doi_type].ot_name; - } - - (void) printf("MOS object %llu (%s) leaked\n", - (u_longlong_t)object, name); - rv = 2; - } - } - (void) range_tree_walk(mos_refd_objs, mos_leaks_cb, NULL); - if (!range_tree_is_empty(mos_refd_objs)) - rv = 2; - range_tree_vacate(mos_refd_objs, NULL, NULL); - range_tree_destroy(mos_refd_objs); - return (rv); -} - -static void -dump_zpool(spa_t *spa) -{ - dsl_pool_t *dp = spa_get_dsl(spa); - int rc = 0; - - if (dump_opt['S']) { - dump_simulated_ddt(spa); - return; - } - - if (!dump_opt['e'] && dump_opt['C'] > 1) { - (void) printf("\nCached configuration:\n"); - dump_nvlist(spa->spa_config, 8); - } - - if (dump_opt['C']) - dump_config(spa); - - if (dump_opt['u']) - dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); - - if (dump_opt['D']) - dump_all_ddts(spa); - - if (dump_opt['d'] > 2 || dump_opt['m']) - dump_metaslabs(spa); - if (dump_opt['M']) - dump_metaslab_groups(spa); - - if (dump_opt['d'] || dump_opt['i']) { - mos_refd_objs = range_tree_create(NULL, NULL); - dump_dir(dp->dp_meta_objset); - - if (dump_opt['d'] >= 3) { - dsl_pool_t *dp = spa->spa_dsl_pool; - dump_full_bpobj(&spa->spa_deferred_bpobj, - "Deferred frees", 0); - if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { - dump_full_bpobj(&dp->dp_free_bpobj, - "Pool snapshot frees", 0); - } - if (bpobj_is_open(&dp->dp_obsolete_bpobj)) { - ASSERT(spa_feature_is_enabled(spa, - SPA_FEATURE_DEVICE_REMOVAL)); - dump_full_bpobj(&dp->dp_obsolete_bpobj, - "Pool obsolete blocks", 0); - } - - if (spa_feature_is_active(spa, - SPA_FEATURE_ASYNC_DESTROY)) { - dump_bptree(spa->spa_meta_objset, - dp->dp_bptree_obj, - "Pool dataset frees"); - } - dump_dtl(spa->spa_root_vdev, 0); - } - (void) dmu_objset_find(spa_name(spa), dump_one_dir, - NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); - - if (rc == 0 && !dump_opt['L']) - rc = dump_mos_leaks(spa); - - for (spa_feature_t f = 0; f < SPA_FEATURES; f++) { - uint64_t refcount; - - if (!(spa_feature_table[f].fi_flags & - ZFEATURE_FLAG_PER_DATASET)) { - ASSERT0(dataset_feature_count[f]); - continue; - } - (void) feature_get_refcount(spa, - &spa_feature_table[f], &refcount); - if (dataset_feature_count[f] != refcount) { - (void) printf("%s feature refcount mismatch: " - "%lld datasets != %lld refcount\n", - spa_feature_table[f].fi_uname, - (longlong_t)dataset_feature_count[f], - (longlong_t)refcount); - rc = 2; - } else { - (void) printf("Verified %s feature refcount " - "of %llu is correct\n", - spa_feature_table[f].fi_uname, - (longlong_t)refcount); - } - } - - if (rc == 0) { - rc = verify_device_removal_feature_counts(spa); - } - } - - if (rc == 0 && (dump_opt['b'] || dump_opt['c'])) - rc = dump_block_stats(spa); - - if (rc == 0) - rc = verify_spacemap_refcounts(spa); - - if (dump_opt['s']) - show_pool_stats(spa); - - if (dump_opt['h']) - dump_history(spa); - - if (rc == 0) - rc = verify_checkpoint(spa); - - if (rc != 0) { - dump_debug_buffer(); - exit(rc); - } -} - -#define ZDB_FLAG_CHECKSUM 0x0001 -#define ZDB_FLAG_DECOMPRESS 0x0002 -#define ZDB_FLAG_BSWAP 0x0004 -#define ZDB_FLAG_GBH 0x0008 -#define ZDB_FLAG_INDIRECT 0x0010 -#define ZDB_FLAG_PHYS 0x0020 -#define ZDB_FLAG_RAW 0x0040 -#define ZDB_FLAG_PRINT_BLKPTR 0x0080 - -static int flagbits[256]; - -static void -zdb_print_blkptr(blkptr_t *bp, int flags) -{ - char blkbuf[BP_SPRINTF_LEN]; - - if (flags & ZDB_FLAG_BSWAP) - byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); - - snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); - (void) printf("%s\n", blkbuf); -} - -static void -zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) -{ - int i; - - for (i = 0; i < nbps; i++) - zdb_print_blkptr(&bp[i], flags); -} - -static void -zdb_dump_gbh(void *buf, int flags) -{ - zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); -} - -static void -zdb_dump_block_raw(void *buf, uint64_t size, int flags) -{ - if (flags & ZDB_FLAG_BSWAP) - byteswap_uint64_array(buf, size); - (void) write(1, buf, size); -} - -static void -zdb_dump_block(char *label, void *buf, uint64_t size, int flags) -{ - uint64_t *d = (uint64_t *)buf; - unsigned nwords = size / sizeof (uint64_t); - int do_bswap = !!(flags & ZDB_FLAG_BSWAP); - unsigned i, j; - const char *hdr; - char *c; - - - if (do_bswap) - hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; - else - hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; - - (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); - - for (i = 0; i < nwords; i += 2) { - (void) printf("%06llx: %016llx %016llx ", - (u_longlong_t)(i * sizeof (uint64_t)), - (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), - (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); - - c = (char *)&d[i]; - for (j = 0; j < 2 * sizeof (uint64_t); j++) - (void) printf("%c", isprint(c[j]) ? c[j] : '.'); - (void) printf("\n"); - } -} - -/* - * There are two acceptable formats: - * leaf_name - For example: c1t0d0 or /tmp/ztest.0a - * child[.child]* - For example: 0.1.1 - * - * The second form can be used to specify arbitrary vdevs anywhere - * in the heirarchy. For example, in a pool with a mirror of - * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . - */ -static vdev_t * -zdb_vdev_lookup(vdev_t *vdev, const char *path) -{ - char *s, *p, *q; - unsigned i; - - if (vdev == NULL) - return (NULL); - - /* First, assume the x.x.x.x format */ - i = strtoul(path, &s, 10); - if (s == path || (s && *s != '.' && *s != '\0')) - goto name; - if (i >= vdev->vdev_children) - return (NULL); - - vdev = vdev->vdev_child[i]; - if (*s == '\0') - return (vdev); - return (zdb_vdev_lookup(vdev, s+1)); - -name: - for (i = 0; i < vdev->vdev_children; i++) { - vdev_t *vc = vdev->vdev_child[i]; - - if (vc->vdev_path == NULL) { - vc = zdb_vdev_lookup(vc, path); - if (vc == NULL) - continue; - else - return (vc); - } - - p = strrchr(vc->vdev_path, '/'); - p = p ? p + 1 : vc->vdev_path; - q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; - - if (strcmp(vc->vdev_path, path) == 0) - return (vc); - if (strcmp(p, path) == 0) - return (vc); - if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) - return (vc); - } - - return (NULL); -} - -/* ARGSUSED */ -static int -random_get_pseudo_bytes_cb(void *buf, size_t len, void *unused) -{ - return (random_get_pseudo_bytes(buf, len)); -} - -/* - * Read a block from a pool and print it out. The syntax of the - * block descriptor is: - * - * pool:vdev_specifier:offset:size[:flags] - * - * pool - The name of the pool you wish to read from - * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) - * offset - offset, in hex, in bytes - * size - Amount of data to read, in hex, in bytes - * flags - A string of characters specifying options - * b: Decode a blkptr at given offset within block - * *c: Calculate and display checksums - * d: Decompress data before dumping - * e: Byteswap data before dumping - * g: Display data as a gang block header - * i: Display as an indirect block - * p: Do I/O to physical offset - * r: Dump raw data to stdout - * - * * = not yet implemented - */ -static void -zdb_read_block(char *thing, spa_t *spa) -{ - blkptr_t blk, *bp = &blk; - dva_t *dva = bp->blk_dva; - int flags = 0; - uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; - zio_t *zio; - vdev_t *vd; - abd_t *pabd; - void *lbuf, *buf; - const char *s, *vdev; - char *p, *dup, *flagstr; - int i, error; - - dup = strdup(thing); - s = strtok(dup, ":"); - vdev = s ? s : ""; - s = strtok(NULL, ":"); - offset = strtoull(s ? s : "", NULL, 16); - s = strtok(NULL, ":"); - size = strtoull(s ? s : "", NULL, 16); - s = strtok(NULL, ":"); - if (s) - flagstr = strdup(s); - else - flagstr = strdup(""); - - s = NULL; - if (size == 0) - s = "size must not be zero"; - if (!IS_P2ALIGNED(size, DEV_BSIZE)) - s = "size must be a multiple of sector size"; - if (!IS_P2ALIGNED(offset, DEV_BSIZE)) - s = "offset must be a multiple of sector size"; - if (s) { - (void) printf("Invalid block specifier: %s - %s\n", thing, s); - free(flagstr); - free(dup); - return; - } - - for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { - for (i = 0; flagstr[i]; i++) { - int bit = flagbits[(uchar_t)flagstr[i]]; - - if (bit == 0) { - (void) printf("***Invalid flag: %c\n", - flagstr[i]); - continue; - } - flags |= bit; - - /* If it's not something with an argument, keep going */ - if ((bit & (ZDB_FLAG_CHECKSUM | - ZDB_FLAG_PRINT_BLKPTR)) == 0) - continue; - - p = &flagstr[i + 1]; - if (bit == ZDB_FLAG_PRINT_BLKPTR) - blkptr_offset = strtoull(p, &p, 16); - if (*p != ':' && *p != '\0') { - (void) printf("***Invalid flag arg: '%s'\n", s); - free(flagstr); - free(dup); - return; - } - i += p - &flagstr[i + 1]; /* skip over the number */ - } - } - free(flagstr); - - vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); - if (vd == NULL) { - (void) printf("***Invalid vdev: %s\n", vdev); - free(dup); - return; - } else { - if (vd->vdev_path) - (void) fprintf(stderr, "Found vdev: %s\n", - vd->vdev_path); - else - (void) fprintf(stderr, "Found vdev type: %s\n", - vd->vdev_ops->vdev_op_type); - } - - psize = size; - lsize = size; - - pabd = abd_alloc_linear(SPA_MAXBLOCKSIZE, B_FALSE); - lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); - - BP_ZERO(bp); - - DVA_SET_VDEV(&dva[0], vd->vdev_id); - DVA_SET_OFFSET(&dva[0], offset); - DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); - DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); - - BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); - - BP_SET_LSIZE(bp, lsize); - BP_SET_PSIZE(bp, psize); - BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); - BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); - BP_SET_TYPE(bp, DMU_OT_NONE); - BP_SET_LEVEL(bp, 0); - BP_SET_DEDUP(bp, 0); - BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); - - spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); - zio = zio_root(spa, NULL, NULL, 0); - - if (vd == vd->vdev_top) { - /* - * Treat this as a normal block read. - */ - zio_nowait(zio_read(zio, spa, bp, pabd, psize, NULL, NULL, - ZIO_PRIORITY_SYNC_READ, - ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); - } else { - /* - * Treat this as a vdev child I/O. - */ - zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pabd, - psize, ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, - ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | - ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | - ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW | ZIO_FLAG_OPTIONAL, - NULL, NULL)); - } - - error = zio_wait(zio); - spa_config_exit(spa, SCL_STATE, FTAG); - - if (error) { - (void) printf("Read of %s failed, error: %d\n", thing, error); - goto out; - } - - if (flags & ZDB_FLAG_DECOMPRESS) { - /* - * We don't know how the data was compressed, so just try - * every decompress function at every inflated blocksize. - */ - enum zio_compress c; - void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); - void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); - - abd_copy_to_buf(pbuf2, pabd, psize); - - VERIFY0(abd_iterate_func(pabd, psize, SPA_MAXBLOCKSIZE - psize, - random_get_pseudo_bytes_cb, NULL)); - - VERIFY0(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, - SPA_MAXBLOCKSIZE - psize)); - - for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; - lsize -= SPA_MINBLOCKSIZE) { - for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { - if (zio_decompress_data(c, pabd, - lbuf, psize, lsize) == 0 && - zio_decompress_data_buf(c, pbuf2, - lbuf2, psize, lsize) == 0 && - bcmp(lbuf, lbuf2, lsize) == 0) - break; - } - if (c != ZIO_COMPRESS_FUNCTIONS) - break; - lsize -= SPA_MINBLOCKSIZE; - } - - umem_free(pbuf2, SPA_MAXBLOCKSIZE); - umem_free(lbuf2, SPA_MAXBLOCKSIZE); - - if (lsize <= psize) { - (void) printf("Decompress of %s failed\n", thing); - goto out; - } - buf = lbuf; - size = lsize; - } else { - buf = abd_to_buf(pabd); - size = psize; - } - - if (flags & ZDB_FLAG_PRINT_BLKPTR) - zdb_print_blkptr((blkptr_t *)(void *) - ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); - else if (flags & ZDB_FLAG_RAW) - zdb_dump_block_raw(buf, size, flags); - else if (flags & ZDB_FLAG_INDIRECT) - zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), - flags); - else if (flags & ZDB_FLAG_GBH) - zdb_dump_gbh(buf, flags); - else - zdb_dump_block(thing, buf, size, flags); - -out: - abd_free(pabd); - umem_free(lbuf, SPA_MAXBLOCKSIZE); - free(dup); -} - -static void -zdb_embedded_block(char *thing) -{ - blkptr_t bp; - unsigned long long *words = (void *)&bp; - char *buf; - int err; - - bzero(&bp, sizeof (bp)); - err = sscanf(thing, "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx:" - "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx", - words + 0, words + 1, words + 2, words + 3, - words + 4, words + 5, words + 6, words + 7, - words + 8, words + 9, words + 10, words + 11, - words + 12, words + 13, words + 14, words + 15); - if (err != 16) { - (void) fprintf(stderr, "invalid input format\n"); - exit(1); - } - ASSERT3U(BPE_GET_LSIZE(&bp), <=, SPA_MAXBLOCKSIZE); - buf = malloc(SPA_MAXBLOCKSIZE); - if (buf == NULL) { - (void) fprintf(stderr, "out of memory\n"); - exit(1); - } - err = decode_embedded_bp(&bp, buf, BPE_GET_LSIZE(&bp)); - if (err != 0) { - (void) fprintf(stderr, "decode failed: %u\n", err); - free(buf); - exit(1); - } - zdb_dump_block_raw(buf, BPE_GET_LSIZE(&bp), 0); - free(buf); -} - -int -main(int argc, char **argv) -{ - int c; - struct rlimit rl = { 1024, 1024 }; - spa_t *spa = NULL; - objset_t *os = NULL; - int dump_all = 1; - int verbose = 0; - int error = 0; - char **searchdirs = NULL; - int nsearch = 0; - char *target, *target_pool; - nvlist_t *policy = NULL; - uint64_t max_txg = UINT64_MAX; - int flags = ZFS_IMPORT_MISSING_LOG; - int rewind = ZPOOL_NEVER_REWIND; - char *spa_config_path_env; - boolean_t target_is_spa = B_TRUE; - nvlist_t *cfg = NULL; - - (void) setrlimit(RLIMIT_NOFILE, &rl); - (void) enable_extended_FILE_stdio(-1, -1); - - dprintf_setup(&argc, argv); - - /* - * If there is an environment variable SPA_CONFIG_PATH it overrides - * default spa_config_path setting. If -U flag is specified it will - * override this environment variable settings once again. - */ - spa_config_path_env = getenv("SPA_CONFIG_PATH"); - if (spa_config_path_env != NULL) - spa_config_path = spa_config_path_env; - - while ((c = getopt(argc, argv, - "AbcCdDeEFGhiI:klLmMo:Op:PqRsSt:uU:vVx:X")) != -1) { - switch (c) { - case 'b': - case 'c': - case 'C': - case 'd': - case 'D': - case 'E': - case 'G': - case 'h': - case 'i': - case 'l': - case 'm': - case 'M': - case 'O': - case 'R': - case 's': - case 'S': - case 'u': - dump_opt[c]++; - dump_all = 0; - break; - case 'A': - case 'e': - case 'F': - case 'k': - case 'L': - case 'P': - case 'q': - case 'X': - dump_opt[c]++; - break; - /* NB: Sort single match options below. */ - case 'I': - max_inflight = strtoull(optarg, NULL, 0); - if (max_inflight == 0) { - (void) fprintf(stderr, "maximum number " - "of inflight I/Os must be greater " - "than 0\n"); - usage(); - } - break; - case 'o': - error = set_global_var(optarg); - if (error != 0) - usage(); - break; - case 'p': - if (searchdirs == NULL) { - searchdirs = umem_alloc(sizeof (char *), - UMEM_NOFAIL); - } else { - char **tmp = umem_alloc((nsearch + 1) * - sizeof (char *), UMEM_NOFAIL); - bcopy(searchdirs, tmp, nsearch * - sizeof (char *)); - umem_free(searchdirs, - nsearch * sizeof (char *)); - searchdirs = tmp; - } - searchdirs[nsearch++] = optarg; - break; - case 't': - max_txg = strtoull(optarg, NULL, 0); - if (max_txg < TXG_INITIAL) { - (void) fprintf(stderr, "incorrect txg " - "specified: %s\n", optarg); - usage(); - } - break; - case 'U': - spa_config_path = optarg; - if (spa_config_path[0] != '/') { - (void) fprintf(stderr, - "cachefile must be an absolute path " - "(i.e. start with a slash)\n"); - usage(); - } - break; - case 'v': - verbose++; - break; - case 'V': - flags = ZFS_IMPORT_VERBATIM; - break; - case 'x': - vn_dumpdir = optarg; - break; - default: - usage(); - break; - } - } - - if (!dump_opt['e'] && searchdirs != NULL) { - (void) fprintf(stderr, "-p option requires use of -e\n"); - usage(); - } - - /* - * ZDB does not typically re-read blocks; therefore limit the ARC - * to 256 MB, which can be used entirely for metadata. - */ - zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024; - - /* - * "zdb -c" uses checksum-verifying scrub i/os which are async reads. - * "zdb -b" uses traversal prefetch which uses async reads. - * For good performance, let several of them be active at once. - */ - zfs_vdev_async_read_max_active = 10; - - /* - * Disable reference tracking for better performance. - */ - reference_tracking_enable = B_FALSE; - - /* - * Do not fail spa_load when spa_load_verify fails. This is needed - * to load non-idle pools. - */ - spa_load_verify_dryrun = B_TRUE; - - kernel_init(FREAD); - g_zfs = libzfs_init(); - if (g_zfs == NULL) - fatal("Fail to initialize zfs"); - - if (dump_all) - verbose = MAX(verbose, 1); - - for (c = 0; c < 256; c++) { - if (dump_all && strchr("AeEFklLOPRSX", c) == NULL) - dump_opt[c] = 1; - if (dump_opt[c]) - dump_opt[c] += verbose; - } - - aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); - zfs_recover = (dump_opt['A'] > 1); - - argc -= optind; - argv += optind; - - if (argc < 2 && dump_opt['R']) - usage(); - - if (dump_opt['E']) { - if (argc != 1) - usage(); - zdb_embedded_block(argv[0]); - return (0); - } - - if (argc < 1) { - if (!dump_opt['e'] && dump_opt['C']) { - dump_cachefile(spa_config_path); - return (0); - } - usage(); - } - - if (dump_opt['l']) - return (dump_label(argv[0])); - - if (dump_opt['O']) { - if (argc != 2) - usage(); - dump_opt['v'] = verbose + 3; - return (dump_path(argv[0], argv[1])); - } - - if (dump_opt['X'] || dump_opt['F']) - rewind = ZPOOL_DO_REWIND | - (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); - - if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || - nvlist_add_uint64(policy, ZPOOL_LOAD_REQUEST_TXG, max_txg) != 0 || - nvlist_add_uint32(policy, ZPOOL_LOAD_REWIND_POLICY, rewind) != 0) - fatal("internal error: %s", strerror(ENOMEM)); - - error = 0; - target = argv[0]; - - if (strpbrk(target, "/@") != NULL) { - size_t targetlen; - - target_pool = strdup(target); - *strpbrk(target_pool, "/@") = '\0'; - - target_is_spa = B_FALSE; - targetlen = strlen(target); - if (targetlen && target[targetlen - 1] == '/') - target[targetlen - 1] = '\0'; - } else { - target_pool = target; - } - - if (dump_opt['e']) { - importargs_t args = { 0 }; - - args.paths = nsearch; - args.path = searchdirs; - args.can_be_active = B_TRUE; - - error = zpool_tryimport(g_zfs, target_pool, &cfg, &args); - - if (error == 0) { - - if (nvlist_add_nvlist(cfg, - ZPOOL_LOAD_POLICY, policy) != 0) { - fatal("can't open '%s': %s", - target, strerror(ENOMEM)); - } - - if (dump_opt['C'] > 1) { - (void) printf("\nConfiguration for import:\n"); - dump_nvlist(cfg, 8); - } - - /* - * Disable the activity check to allow examination of - * active pools. - */ - error = spa_import(target_pool, cfg, NULL, - flags | ZFS_IMPORT_SKIP_MMP); - } - } - - char *checkpoint_pool = NULL; - char *checkpoint_target = NULL; - if (dump_opt['k']) { - checkpoint_pool = import_checkpointed_state(target, cfg, - &checkpoint_target); - - if (checkpoint_target != NULL) - target = checkpoint_target; - - } - - if (error == 0) { - if (dump_opt['k'] && (target_is_spa || dump_opt['R'])) { - ASSERT(checkpoint_pool != NULL); - ASSERT(checkpoint_target == NULL); - - error = spa_open(checkpoint_pool, &spa, FTAG); - if (error != 0) { - fatal("Tried to open pool \"%s\" but " - "spa_open() failed with error %d\n", - checkpoint_pool, error); - } - - } else if (target_is_spa || dump_opt['R']) { - zdb_set_skip_mmp(target); - error = spa_open_rewind(target, &spa, FTAG, policy, - NULL); - if (error) { - /* - * If we're missing the log device then - * try opening the pool after clearing the - * log state. - */ - mutex_enter(&spa_namespace_lock); - if ((spa = spa_lookup(target)) != NULL && - spa->spa_log_state == SPA_LOG_MISSING) { - spa->spa_log_state = SPA_LOG_CLEAR; - error = 0; - } - mutex_exit(&spa_namespace_lock); - - if (!error) { - error = spa_open_rewind(target, &spa, - FTAG, policy, NULL); - } - } - } else { - zdb_set_skip_mmp(target); - error = open_objset(target, DMU_OST_ANY, FTAG, &os); - } - } - nvlist_free(policy); - - if (error) - fatal("can't open '%s': %s", target, strerror(error)); - - argv++; - argc--; - if (!dump_opt['R']) { - if (argc > 0) { - zopt_objects = argc; - zopt_object = calloc(zopt_objects, sizeof (uint64_t)); - for (unsigned i = 0; i < zopt_objects; i++) { - errno = 0; - zopt_object[i] = strtoull(argv[i], NULL, 0); - if (zopt_object[i] == 0 && errno != 0) - fatal("bad number %s: %s", - argv[i], strerror(errno)); - } - } - if (os != NULL) { - dump_dir(os); - } else if (zopt_objects > 0 && !dump_opt['m']) { - dump_dir(spa->spa_meta_objset); - } else { - dump_zpool(spa); - } - } else { - flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; - flagbits['c'] = ZDB_FLAG_CHECKSUM; - flagbits['d'] = ZDB_FLAG_DECOMPRESS; - flagbits['e'] = ZDB_FLAG_BSWAP; - flagbits['g'] = ZDB_FLAG_GBH; - flagbits['i'] = ZDB_FLAG_INDIRECT; - flagbits['p'] = ZDB_FLAG_PHYS; - flagbits['r'] = ZDB_FLAG_RAW; - - for (int i = 0; i < argc; i++) - zdb_read_block(argv[i], spa); - } - - if (dump_opt['k']) { - free(checkpoint_pool); - if (!target_is_spa) - free(checkpoint_target); - } - - if (os != NULL) - close_objset(os, FTAG); - else - spa_close(spa, FTAG); - - fuid_table_destroy(); - - dump_debug_buffer(); - - libzfs_fini(g_zfs); - kernel_fini(); - - return (error); -} |