zdb.c revision c3d26abc9ee97b4f60233556aadeb57e0bd30bb9
1fa9e406ahrens/*
2fa9e406ahrens * CDDL HEADER START
3fa9e406ahrens *
4fa9e406ahrens * The contents of this file are subject to the terms of the
5ea8dc4beschrock * Common Development and Distribution License (the "License").
6ea8dc4beschrock * You may not use this file except in compliance with the License.
7fa9e406ahrens *
8fa9e406ahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9fa9e406ahrens * or http://www.opensolaris.org/os/licensing.
10fa9e406ahrens * See the License for the specific language governing permissions
11fa9e406ahrens * and limitations under the License.
12fa9e406ahrens *
13fa9e406ahrens * When distributing Covered Code, include this CDDL HEADER in each
14fa9e406ahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15fa9e406ahrens * If applicable, add the following below this CDDL HEADER, with the
16fa9e406ahrens * fields enclosed by brackets "[]" replaced with your own identifying
17fa9e406ahrens * information: Portions Copyright [yyyy] [name of copyright owner]
18fa9e406ahrens *
19fa9e406ahrens * CDDL HEADER END
20fa9e406ahrens */
21ad135b5Christopher Siden
22fa9e406ahrens/*
238f2529dMark Shellenbaum * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24ca0cc39Matthew Ahrens * Copyright (c) 2011, 2015 by Delphix. All rights reserved.
25c3d26abMatthew Ahrens * Copyright (c) 2014 Integros [integros.com]
26fa9e406ahrens */
27fa9e406ahrens
28fa9e406ahrens#include <stdio.h>
29490d05bMatthew Ahrens#include <unistd.h>
30004388ecasper#include <stdio_ext.h>
31fa9e406ahrens#include <stdlib.h>
3244cd46cbillm#include <ctype.h>
33fa9e406ahrens#include <sys/zfs_context.h>
34fa9e406ahrens#include <sys/spa.h>
35fa9e406ahrens#include <sys/spa_impl.h>
36fa9e406ahrens#include <sys/dmu.h>
37fa9e406ahrens#include <sys/zap.h>
38fa9e406ahrens#include <sys/fs/zfs.h>
39fa9e406ahrens#include <sys/zfs_znode.h>
400a586ceMark Shellenbaum#include <sys/zfs_sa.h>
410a586ceMark Shellenbaum#include <sys/sa.h>
420a586ceMark Shellenbaum#include <sys/sa_impl.h>
43fa9e406ahrens#include <sys/vdev.h>
44fa9e406ahrens#include <sys/vdev_impl.h>
45fa9e406ahrens#include <sys/metaslab_impl.h>
46fa9e406ahrens#include <sys/dmu_objset.h>
47fa9e406ahrens#include <sys/dsl_dir.h>
48fa9e406ahrens#include <sys/dsl_dataset.h>
49fa9e406ahrens#include <sys/dsl_pool.h>
50fa9e406ahrens#include <sys/dbuf.h>
51fa9e406ahrens#include <sys/zil.h>
52fa9e406ahrens#include <sys/zil_impl.h>
53fa9e406ahrens#include <sys/stat.h>
54fa9e406ahrens#include <sys/resource.h>
55fa9e406ahrens#include <sys/dmu_traverse.h>
56fa9e406ahrens#include <sys/zio_checksum.h>
57fa9e406ahrens#include <sys/zio_compress.h>
58e0d35c4marks#include <sys/zfs_fuid.h>
5988b7b0fMatthew Ahrens#include <sys/arc.h>
60b24ab67Jeff Bonwick#include <sys/ddt.h>
61ad135b5Christopher Siden#include <sys/zfeature.h>
624445fffMatthew Ahrens#include <zfs_comutil.h>
63de6628fck#undef ZFS_MAXNAMELEN
64de6628fck#undef verify
65de6628fck#include <libzfs.h>
66fa9e406ahrens
67e690fb2Christopher Siden#define	ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ?	\
68e690fb2Christopher Siden	zio_compress_table[(idx)].ci_name : "UNKNOWN")
69e690fb2Christopher Siden#define	ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ?	\
70e690fb2Christopher Siden	zio_checksum_table[(idx)].ci_name : "UNKNOWN")
71e690fb2Christopher Siden#define	ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ?	\
72e690fb2Christopher Siden	dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ?	\
73e690fb2Christopher Siden	dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN")
74e690fb2Christopher Siden#define	ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) :		\
75e690fb2Christopher Siden	(((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ?	\
76e690fb2Christopher Siden	DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES))
776de8f41Victor Latushkin
78feef89cVictor Latushkin#ifndef lint
797fd05acMatthew Ahrensextern boolean_t zfs_recover;
8006be980Matthew Ahrensextern uint64_t zfs_arc_max, zfs_arc_meta_limit;
81f7950bfMatthew Ahrensextern int zfs_vdev_async_read_max_active;
82feef89cVictor Latushkin#else
837fd05acMatthew Ahrensboolean_t zfs_recover;
8406be980Matthew Ahrensuint64_t zfs_arc_max, zfs_arc_meta_limit;
85f7950bfMatthew Ahrensint zfs_vdev_async_read_max_active;
86feef89cVictor Latushkin#endif
87feef89cVictor Latushkin
88fa9e406ahrensconst char cmdname[] = "zdb";
89fa9e406ahrensuint8_t dump_opt[256];
90fa9e406ahrens
91fa9e406ahrenstypedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
92fa9e406ahrens
93fa9e406ahrensextern void dump_intent_log(zilog_t *);
94fa9e406ahrensuint64_t *zopt_object = NULL;
95fa9e406ahrensint zopt_objects = 0;
96de6628fcklibzfs_handle_t *g_zfs;
9706be980Matthew Ahrensuint64_t max_inflight = 1000;
98fa9e406ahrens
99732885fMatthew Ahrensstatic void snprintf_blkptr_compact(char *, size_t, const blkptr_t *);
100732885fMatthew Ahrens
101fa9e406ahrens/*
102fa9e406ahrens * These libumem hooks provide a reasonable set of defaults for the allocator's
103fa9e406ahrens * debugging facilities.
104fa9e406ahrens */
105fa9e406ahrensconst char *
106fa9e406ahrens_umem_debug_init()
107fa9e406ahrens{
108fa9e406ahrens	return ("default,verbose"); /* $UMEM_DEBUG setting */
109fa9e406ahrens}
110fa9e406ahrens
111fa9e406ahrensconst char *
112fa9e406ahrens_umem_logging_init(void)
113fa9e406ahrens{
114fa9e406ahrens	return ("fail,contents"); /* $UMEM_LOGGING setting */
115fa9e406ahrens}
116fa9e406ahrens
117fa9e406ahrensstatic void
118fa9e406ahrensusage(void)
119fa9e406ahrens{
120fa9e406ahrens	(void) fprintf(stderr,
1212e4c998George Wilson	    "Usage: %s [-CumMdibcsDvhLXFPA] [-t txg] [-e [-p path...]] "
1222e4c998George Wilson	    "[-U config] [-I inflight I/Os] [-x dumpdir] poolname [object...]\n"
12331d7e8fGeorge Wilson	    "       %s [-divPA] [-e -p path...] [-U config] dataset "
12431d7e8fGeorge Wilson	    "[object...]\n"
1252e4c998George Wilson	    "       %s -mM [-LXFPA] [-t txg] [-e [-p path...]] [-U config] "
12690e894eRichard Lowe	    "poolname [vdev [metaslab...]]\n"
12790e894eRichard Lowe	    "       %s -R [-A] [-e [-p path...]] poolname "
12890e894eRichard Lowe	    "vdev:offset:size[:flags]\n"
12931d7e8fGeorge Wilson	    "       %s -S [-PA] [-e [-p path...]] [-U config] poolname\n"
13090e894eRichard Lowe	    "       %s -l [-uA] device\n"
13190e894eRichard Lowe	    "       %s -C [-A] [-U config]\n\n",
132bbfd46cJeff Bonwick	    cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname);
1333ad6c7fVictor Latushkin
1343ad6c7fVictor Latushkin	(void) fprintf(stderr, "    Dataset name must include at least one "
1353ad6c7fVictor Latushkin	    "separator character '/' or '@'\n");
1363ad6c7fVictor Latushkin	(void) fprintf(stderr, "    If dataset name is specified, only that "
1373ad6c7fVictor Latushkin	    "dataset is dumped\n");
1383ad6c7fVictor Latushkin	(void) fprintf(stderr, "    If object numbers are specified, only "
1393ad6c7fVictor Latushkin	    "those objects are dumped\n\n");
1403ad6c7fVictor Latushkin	(void) fprintf(stderr, "    Options to control amount of output:\n");
1413ad6c7fVictor Latushkin	(void) fprintf(stderr, "        -u uberblock\n");
1423ad6c7fVictor Latushkin	(void) fprintf(stderr, "        -d dataset(s)\n");
1433ad6c7fVictor Latushkin	(void) fprintf(stderr, "        -i intent logs\n");
14407428bdVictor Latushkin	(void) fprintf(stderr, "        -C config (or cachefile if alone)\n");
1458f18d1fGeorge Wilson	(void) fprintf(stderr, "        -h pool history\n");
1463ad6c7fVictor Latushkin	(void) fprintf(stderr, "        -b block statistics\n");
1473ad6c7fVictor Latushkin	(void) fprintf(stderr, "        -m metaslabs\n");
1482e4c998George Wilson	(void) fprintf(stderr, "        -M metaslab groups\n");
1493ad6c7fVictor Latushkin	(void) fprintf(stderr, "        -c checksum all metadata (twice for "
1506365109Victor Latushkin	    "all data) blocks\n");
1513ad6c7fVictor Latushkin	(void) fprintf(stderr, "        -s report stats on zdb's I/O\n");
152f0ba89bJeff Bonwick	(void) fprintf(stderr, "        -D dedup statistics\n");
153b24ab67Jeff Bonwick	(void) fprintf(stderr, "        -S simulate dedup to measure effect\n");
1543ad6c7fVictor Latushkin	(void) fprintf(stderr, "        -v verbose (applies to all others)\n");
155fa9e406ahrens	(void) fprintf(stderr, "        -l dump label contents\n");
15682a0a98Victor Latushkin	(void) fprintf(stderr, "        -L disable leak tracking (do not "
15782a0a98Victor Latushkin	    "load spacemaps)\n");
158d41e764ek	(void) fprintf(stderr, "        -R read and display block from a "
1593ad6c7fVictor Latushkin	    "device\n\n");
1603ad6c7fVictor Latushkin	(void) fprintf(stderr, "    Below options are intended for use "
161df15e41Matthew Ahrens	    "with other options:\n");
162feef89cVictor Latushkin	(void) fprintf(stderr, "        -A ignore assertions (-A), enable "
163feef89cVictor Latushkin	    "panic recovery (-AA) or both (-AAA)\n");
164c8ee184Victor Latushkin	(void) fprintf(stderr, "        -F attempt automatic rewind within "
165c8ee184Victor Latushkin	    "safe range of transaction groups\n");
1663ad6c7fVictor Latushkin	(void) fprintf(stderr, "        -U <cachefile_path> -- use alternate "
1673ad6c7fVictor Latushkin	    "cachefile\n");
168c8ee184Victor Latushkin	(void) fprintf(stderr, "        -X attempt extreme rewind (does not "
169c8ee184Victor Latushkin	    "work with dataset)\n");
1703ad6c7fVictor Latushkin	(void) fprintf(stderr, "        -e pool is exported/destroyed/"
1713ad6c7fVictor Latushkin	    "has altroot/not in a cachefile\n");
1723ad6c7fVictor Latushkin	(void) fprintf(stderr, "        -p <path> -- use one or more with "
1733ad6c7fVictor Latushkin	    "-e to specify path to vdev dir\n");
174df15e41Matthew Ahrens	(void) fprintf(stderr, "        -x <dumpdir> -- "
175df15e41Matthew Ahrens	    "dump all read blocks into specified directory\n");
17690e894eRichard Lowe	(void) fprintf(stderr, "        -P print numbers in parseable form\n");
1773ad6c7fVictor Latushkin	(void) fprintf(stderr, "        -t <txg> -- highest txg to use when "
1782e55192Victor Latushkin	    "searching for uberblocks\n");
1792e4c998George Wilson	(void) fprintf(stderr, "        -I <number of inflight I/Os> -- "
180df15e41Matthew Ahrens	    "specify the maximum number of "
181df15e41Matthew Ahrens	    "checksumming I/Os [default is 200]\n");
182fa9e406ahrens	(void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
183fa9e406ahrens	    "to make only that option verbose\n");
184fa9e406ahrens	(void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
185fa9e406ahrens	exit(1);
186fa9e406ahrens}
187fa9e406ahrens
188ccba080Rich Morris/*
189ccba080Rich Morris * Called for usage errors that are discovered after a call to spa_open(),
190ccba080Rich Morris * dmu_bonus_hold(), or pool_match().  abort() is called for other errors.
191ccba080Rich Morris */
192ccba080Rich Morris
193fa9e406ahrensstatic void
194fa9e406ahrensfatal(const char *fmt, ...)
195fa9e406ahrens{
196fa9e406ahrens	va_list ap;
197fa9e406ahrens
198fa9e406ahrens	va_start(ap, fmt);
199fa9e406ahrens	(void) fprintf(stderr, "%s: ", cmdname);
200fa9e406ahrens	(void) vfprintf(stderr, fmt, ap);
201fa9e406ahrens	va_end(ap);
202fa9e406ahrens	(void) fprintf(stderr, "\n");
203fa9e406ahrens
204ccba080Rich Morris	exit(1);
205fa9e406ahrens}
206fa9e406ahrens
207fa9e406ahrens/* ARGSUSED */
208fa9e406ahrensstatic void
209fa9e406ahrensdump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
210fa9e406ahrens{
211fa9e406ahrens	nvlist_t *nv;
212fa9e406ahrens	size_t nvsize = *(uint64_t *)data;
213fa9e406ahrens	char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
214fa9e406ahrens
2157bfdf01Neil Perrin	VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
216fa9e406ahrens
217fa9e406ahrens	VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
218fa9e406ahrens
219fa9e406ahrens	umem_free(packed, nvsize);
220fa9e406ahrens
221fa9e406ahrens	dump_nvlist(nv, 8);
222fa9e406ahrens
223fa9e406ahrens	nvlist_free(nv);
224fa9e406ahrens}
225fa9e406ahrens
2264445fffMatthew Ahrens/* ARGSUSED */
2274445fffMatthew Ahrensstatic void
2284445fffMatthew Ahrensdump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size)
2294445fffMatthew Ahrens{
2304445fffMatthew Ahrens	spa_history_phys_t *shp = data;
2314445fffMatthew Ahrens
2324445fffMatthew Ahrens	if (shp == NULL)
2334445fffMatthew Ahrens		return;
2344445fffMatthew Ahrens
2354445fffMatthew Ahrens	(void) printf("\t\tpool_create_len = %llu\n",
2364445fffMatthew Ahrens	    (u_longlong_t)shp->sh_pool_create_len);
2374445fffMatthew Ahrens	(void) printf("\t\tphys_max_off = %llu\n",
2384445fffMatthew Ahrens	    (u_longlong_t)shp->sh_phys_max_off);
2394445fffMatthew Ahrens	(void) printf("\t\tbof = %llu\n",
2404445fffMatthew Ahrens	    (u_longlong_t)shp->sh_bof);
2414445fffMatthew Ahrens	(void) printf("\t\teof = %llu\n",
2424445fffMatthew Ahrens	    (u_longlong_t)shp->sh_eof);
2434445fffMatthew Ahrens	(void) printf("\t\trecords_lost = %llu\n",
2444445fffMatthew Ahrens	    (u_longlong_t)shp->sh_records_lost);
2454445fffMatthew Ahrens}
2464445fffMatthew Ahrens
2473f9d6adLin Lingstatic void
2483f9d6adLin Lingzdb_nicenum(uint64_t num, char *buf)
2493f9d6adLin Ling{
2503f9d6adLin Ling	if (dump_opt['P'])
2513f9d6adLin Ling		(void) sprintf(buf, "%llu", (longlong_t)num);
2523f9d6adLin Ling	else
2533f9d6adLin Ling		nicenum(num, buf);
2543f9d6adLin Ling}
2553f9d6adLin Ling
256490d05bMatthew Ahrensconst char histo_stars[] = "****************************************";
257490d05bMatthew Ahrensconst int histo_width = sizeof (histo_stars) - 1;
258fa9e406ahrens
259fa9e406ahrensstatic void
2600713e23George Wilsondump_histogram(const uint64_t *histo, int size, int offset)
261fa9e406ahrens{
262fa9e406ahrens	int i;
263490d05bMatthew Ahrens	int minidx = size - 1;
264fa9e406ahrens	int maxidx = 0;
265fa9e406ahrens	uint64_t max = 0;
266fa9e406ahrens
267490d05bMatthew Ahrens	for (i = 0; i < size; i++) {
268fa9e406ahrens		if (histo[i] > max)
269fa9e406ahrens			max = histo[i];
270fa9e406ahrens		if (histo[i] > 0 && i > maxidx)
271fa9e406ahrens			maxidx = i;
272fa9e406ahrens		if (histo[i] > 0 && i < minidx)
273fa9e406ahrens			minidx = i;
274fa9e406ahrens	}
275fa9e406ahrens
276490d05bMatthew Ahrens	if (max < histo_width)
277490d05bMatthew Ahrens		max = histo_width;
278fa9e406ahrens
279490d05bMatthew Ahrens	for (i = minidx; i <= maxidx; i++) {
280490d05bMatthew Ahrens		(void) printf("\t\t\t%3u: %6llu %s\n",
2810713e23George Wilson		    i + offset, (u_longlong_t)histo[i],
282490d05bMatthew Ahrens		    &histo_stars[(max - histo[i]) * histo_width / max]);
283490d05bMatthew Ahrens	}
284fa9e406ahrens}
285fa9e406ahrens
286fa9e406ahrensstatic void
287fa9e406ahrensdump_zap_stats(objset_t *os, uint64_t object)
288fa9e406ahrens{
289fa9e406ahrens	int error;
290fa9e406ahrens	zap_stats_t zs;
291fa9e406ahrens
292fa9e406ahrens	error = zap_get_stats(os, object, &zs);
293fa9e406ahrens	if (error)
294fa9e406ahrens		return;
295fa9e406ahrens
296fa9e406ahrens	if (zs.zs_ptrtbl_len == 0) {
297fa9e406ahrens		ASSERT(zs.zs_num_blocks == 1);
298fa9e406ahrens		(void) printf("\tmicrozap: %llu bytes, %llu entries\n",
299fa9e406ahrens		    (u_longlong_t)zs.zs_blocksize,
300fa9e406ahrens		    (u_longlong_t)zs.zs_num_entries);
301fa9e406ahrens		return;
302fa9e406ahrens	}
303fa9e406ahrens
304fa9e406ahrens	(void) printf("\tFat ZAP stats:\n");
3058248818nd
3068248818nd	(void) printf("\t\tPointer table:\n");
3078248818nd	(void) printf("\t\t\t%llu elements\n",
308fa9e406ahrens	    (u_longlong_t)zs.zs_ptrtbl_len);
3098248818nd	(void) printf("\t\t\tzt_blk: %llu\n",
3108248818nd	    (u_longlong_t)zs.zs_ptrtbl_zt_blk);
3118248818nd	(void) printf("\t\t\tzt_numblks: %llu\n",
3128248818nd	    (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
3138248818nd	(void) printf("\t\t\tzt_shift: %llu\n",
3148248818nd	    (u_longlong_t)zs.zs_ptrtbl_zt_shift);
3158248818nd	(void) printf("\t\t\tzt_blks_copied: %llu\n",
3168248818nd	    (u_longlong_t)zs.zs_ptrtbl_blks_copied);
3178248818nd	(void) printf("\t\t\tzt_nextblk: %llu\n",
3188248818nd	    (u_longlong_t)zs.zs_ptrtbl_nextblk);
3198248818nd
320fa9e406ahrens	(void) printf("\t\tZAP entries: %llu\n",
321fa9e406ahrens	    (u_longlong_t)zs.zs_num_entries);
322fa9e406ahrens	(void) printf("\t\tLeaf blocks: %llu\n",
323fa9e406ahrens	    (u_longlong_t)zs.zs_num_leafs);
324fa9e406ahrens	(void) printf("\t\tTotal blocks: %llu\n",
325fa9e406ahrens	    (u_longlong_t)zs.zs_num_blocks);
3268248818nd	(void) printf("\t\tzap_block_type: 0x%llx\n",
3278248818nd	    (u_longlong_t)zs.zs_block_type);
3288248818nd	(void) printf("\t\tzap_magic: 0x%llx\n",
3298248818nd	    (u_longlong_t)zs.zs_magic);
3308248818nd	(void) printf("\t\tzap_salt: 0x%llx\n",
3318248818nd	    (u_longlong_t)zs.zs_salt);
332fa9e406ahrens
333fa9e406ahrens	(void) printf("\t\tLeafs with 2^n pointers:\n");
3340713e23George Wilson	dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0);
335fa9e406ahrens
336fa9e406ahrens	(void) printf("\t\tBlocks with n*5 entries:\n");
3370713e23George Wilson	dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0);
338fa9e406ahrens
339fa9e406ahrens	(void) printf("\t\tBlocks n/10 full:\n");
3400713e23George Wilson	dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0);
341fa9e406ahrens
342fa9e406ahrens	(void) printf("\t\tEntries with n chunks:\n");
3430713e23George Wilson	dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0);
344fa9e406ahrens
345fa9e406ahrens	(void) printf("\t\tBuckets with n entries:\n");
3460713e23George Wilson	dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0);
347fa9e406ahrens}
348fa9e406ahrens
349fa9e406ahrens/*ARGSUSED*/
350fa9e406ahrensstatic void
351fa9e406ahrensdump_none(objset_t *os, uint64_t object, void *data, size_t size)
352fa9e406ahrens{
353fa9e406ahrens}
354fa9e406ahrens
355fa9e406ahrens/*ARGSUSED*/
3566de8f41Victor Latushkinstatic void
3576de8f41Victor Latushkindump_unknown(objset_t *os, uint64_t object, void *data, size_t size)
3586de8f41Victor Latushkin{
3596de8f41Victor Latushkin	(void) printf("\tUNKNOWN OBJECT TYPE\n");
3606de8f41Victor Latushkin}
3616de8f41Victor Latushkin
3626de8f41Victor Latushkin/*ARGSUSED*/
363fa9e406ahrensvoid
364fa9e406ahrensdump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
365fa9e406ahrens{
366fa9e406ahrens}
367fa9e406ahrens
368fa9e406ahrens/*ARGSUSED*/
369fa9e406ahrensstatic void
370fa9e406ahrensdump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
371fa9e406ahrens{
372fa9e406ahrens}
373fa9e406ahrens
374fa9e406ahrens/*ARGSUSED*/
375fa9e406ahrensstatic void
376fa9e406ahrensdump_zap(objset_t *os, uint64_t object, void *data, size_t size)
377fa9e406ahrens{
378fa9e406ahrens	zap_cursor_t zc;
379fa9e406ahrens	zap_attribute_t attr;
380fa9e406ahrens	void *prop;
381fa9e406ahrens	int i;
382fa9e406ahrens
383fa9e406ahrens	dump_zap_stats(os, object);
384fa9e406ahrens	(void) printf("\n");
385fa9e406ahrens
386fa9e406ahrens	for (zap_cursor_init(&zc, os, object);
387fa9e406ahrens	    zap_cursor_retrieve(&zc, &attr) == 0;
388fa9e406ahrens	    zap_cursor_advance(&zc)) {
389fa9e406ahrens		(void) printf("\t\t%s = ", attr.za_name);
390fa9e406ahrens		if (attr.za_num_integers == 0) {
391fa9e406ahrens			(void) printf("\n");
392fa9e406ahrens			continue;
393fa9e406ahrens		}
394fa9e406ahrens		prop = umem_zalloc(attr.za_num_integers *
395fa9e406ahrens		    attr.za_integer_length, UMEM_NOFAIL);
396fa9e406ahrens		(void) zap_lookup(os, object, attr.za_name,
397fa9e406ahrens		    attr.za_integer_length, attr.za_num_integers, prop);
398fa9e406ahrens		if (attr.za_integer_length == 1) {
399fa9e406ahrens			(void) printf("%s", (char *)prop);
400fa9e406ahrens		} else {
401fa9e406ahrens			for (i = 0; i < attr.za_num_integers; i++) {
402fa9e406ahrens				switch (attr.za_integer_length) {
403fa9e406ahrens				case 2:
404fa9e406ahrens					(void) printf("%u ",
405fa9e406ahrens					    ((uint16_t *)prop)[i]);
406fa9e406ahrens					break;
407fa9e406ahrens				case 4:
408fa9e406ahrens					(void) printf("%u ",
409fa9e406ahrens					    ((uint32_t *)prop)[i]);
410fa9e406ahrens					break;
411fa9e406ahrens				case 8:
412fa9e406ahrens					(void) printf("%lld ",
413fa9e406ahrens					    (u_longlong_t)((int64_t *)prop)[i]);
414fa9e406ahrens					break;
415fa9e406ahrens				}
416fa9e406ahrens			}
417fa9e406ahrens		}
418fa9e406ahrens		(void) printf("\n");
419fa9e406ahrens		umem_free(prop, attr.za_num_integers * attr.za_integer_length);
420fa9e406ahrens	}
42187e5029ahrens	zap_cursor_fini(&zc);
422fa9e406ahrens}
423fa9e406ahrens
424732885fMatthew Ahrensstatic void
425732885fMatthew Ahrensdump_bpobj(objset_t *os, uint64_t object, void *data, size_t size)
426732885fMatthew Ahrens{
427732885fMatthew Ahrens	bpobj_phys_t *bpop = data;
428732885fMatthew Ahrens	char bytes[32], comp[32], uncomp[32];
429732885fMatthew Ahrens
430732885fMatthew Ahrens	if (bpop == NULL)
431732885fMatthew Ahrens		return;
432732885fMatthew Ahrens
433732885fMatthew Ahrens	zdb_nicenum(bpop->bpo_bytes, bytes);
434732885fMatthew Ahrens	zdb_nicenum(bpop->bpo_comp, comp);
435732885fMatthew Ahrens	zdb_nicenum(bpop->bpo_uncomp, uncomp);
436732885fMatthew Ahrens
437732885fMatthew Ahrens	(void) printf("\t\tnum_blkptrs = %llu\n",
438732885fMatthew Ahrens	    (u_longlong_t)bpop->bpo_num_blkptrs);
439732885fMatthew Ahrens	(void) printf("\t\tbytes = %s\n", bytes);
440732885fMatthew Ahrens	if (size >= BPOBJ_SIZE_V1) {
441732885fMatthew Ahrens		(void) printf("\t\tcomp = %s\n", comp);
442732885fMatthew Ahrens		(void) printf("\t\tuncomp = %s\n", uncomp);
443732885fMatthew Ahrens	}
444732885fMatthew Ahrens	if (size >= sizeof (*bpop)) {
445732885fMatthew Ahrens		(void) printf("\t\tsubobjs = %llu\n",
446732885fMatthew Ahrens		    (u_longlong_t)bpop->bpo_subobjs);
447732885fMatthew Ahrens		(void) printf("\t\tnum_subobjs = %llu\n",
448732885fMatthew Ahrens		    (u_longlong_t)bpop->bpo_num_subobjs);
449732885fMatthew Ahrens	}
450732885fMatthew Ahrens
451732885fMatthew Ahrens	if (dump_opt['d'] < 5)
452732885fMatthew Ahrens		return;
453732885fMatthew Ahrens
454732885fMatthew Ahrens	for (uint64_t i = 0; i < bpop->bpo_num_blkptrs; i++) {
455732885fMatthew Ahrens		char blkbuf[BP_SPRINTF_LEN];
456732885fMatthew Ahrens		blkptr_t bp;
457732885fMatthew Ahrens
458732885fMatthew Ahrens		int err = dmu_read(os, object,
459732885fMatthew Ahrens		    i * sizeof (bp), sizeof (bp), &bp, 0);
460732885fMatthew Ahrens		if (err != 0) {
461732885fMatthew Ahrens			(void) printf("got error %u from dmu_read\n", err);
462732885fMatthew Ahrens			break;
463732885fMatthew Ahrens		}
464732885fMatthew Ahrens		snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp);
465732885fMatthew Ahrens		(void) printf("\t%s\n", blkbuf);
466732885fMatthew Ahrens	}
467732885fMatthew Ahrens}
468732885fMatthew Ahrens
469732885fMatthew Ahrens/* ARGSUSED */
470732885fMatthew Ahrensstatic void
471732885fMatthew Ahrensdump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size)
472732885fMatthew Ahrens{
473732885fMatthew Ahrens	dmu_object_info_t doi;
474732885fMatthew Ahrens
475732885fMatthew Ahrens	VERIFY0(dmu_object_info(os, object, &doi));
476732885fMatthew Ahrens	uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP);
477732885fMatthew Ahrens
478732885fMatthew Ahrens	int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0);
479732885fMatthew Ahrens	if (err != 0) {
480732885fMatthew Ahrens		(void) printf("got error %u from dmu_read\n", err);
481732885fMatthew Ahrens		kmem_free(subobjs, doi.doi_max_offset);
482732885fMatthew Ahrens		return;
483732885fMatthew Ahrens	}
484732885fMatthew Ahrens
485732885fMatthew Ahrens	int64_t last_nonzero = -1;
486732885fMatthew Ahrens	for (uint64_t i = 0; i < doi.doi_max_offset / 8; i++) {
487732885fMatthew Ahrens		if (subobjs[i] != 0)
488732885fMatthew Ahrens			last_nonzero = i;
489732885fMatthew Ahrens	}
490732885fMatthew Ahrens
491732885fMatthew Ahrens	for (int64_t i = 0; i <= last_nonzero; i++) {
492732885fMatthew Ahrens		(void) printf("\t%llu\n", (longlong_t)subobjs[i]);
493732885fMatthew Ahrens	}
494732885fMatthew Ahrens	kmem_free(subobjs, doi.doi_max_offset);
495732885fMatthew Ahrens}
496732885fMatthew Ahrens
497e743726ahrens/*ARGSUSED*/
498e743726ahrensstatic void
499486ae71Matthew Ahrensdump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size)
500486ae71Matthew Ahrens{
501486ae71Matthew Ahrens	dump_zap_stats(os, object);
502486ae71Matthew Ahrens	/* contents are printed elsewhere, properly decoded */
503486ae71Matthew Ahrens}
504486ae71Matthew Ahrens
505486ae71Matthew Ahrens/*ARGSUSED*/
506486ae71Matthew Ahrensstatic void
5070a586ceMark Shellenbaumdump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size)
5080a586ceMark Shellenbaum{
5090a586ceMark Shellenbaum	zap_cursor_t zc;
5100a586ceMark Shellenbaum	zap_attribute_t attr;
5110a586ceMark Shellenbaum
5120a586ceMark Shellenbaum	dump_zap_stats(os, object);
5130a586ceMark Shellenbaum	(void) printf("\n");
5140a586ceMark Shellenbaum
5150a586ceMark Shellenbaum	for (zap_cursor_init(&zc, os, object);
5160a586ceMark Shellenbaum	    zap_cursor_retrieve(&zc, &attr) == 0;
5170a586ceMark Shellenbaum	    zap_cursor_advance(&zc)) {
5180a586ceMark Shellenbaum		(void) printf("\t\t%s = ", attr.za_name);
5190a586ceMark Shellenbaum		if (attr.za_num_integers == 0) {
5200a586ceMark Shellenbaum			(void) printf("\n");
5210a586ceMark Shellenbaum			continue;
5220a586ceMark Shellenbaum		}
5230a586ceMark Shellenbaum		(void) printf(" %llx : [%d:%d:%d]\n",
5240a586ceMark Shellenbaum		    (u_longlong_t)attr.za_first_integer,
5250a586ceMark Shellenbaum		    (int)ATTR_LENGTH(attr.za_first_integer),
5260a586ceMark Shellenbaum		    (int)ATTR_BSWAP(attr.za_first_integer),
5270a586ceMark Shellenbaum		    (int)ATTR_NUM(attr.za_first_integer));
5280a586ceMark Shellenbaum	}
5290a586ceMark Shellenbaum	zap_cursor_fini(&zc);
5300a586ceMark Shellenbaum}
5310a586ceMark Shellenbaum
5320a586ceMark Shellenbaum/*ARGSUSED*/
5330a586ceMark Shellenbaumstatic void
5340a586ceMark Shellenbaumdump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size)
5350a586ceMark Shellenbaum{
5360a586ceMark Shellenbaum	zap_cursor_t zc;
5370a586ceMark Shellenbaum	zap_attribute_t attr;
5380a586ceMark Shellenbaum	uint16_t *layout_attrs;
5390a586ceMark Shellenbaum	int i;
5400a586ceMark Shellenbaum
5410a586ceMark Shellenbaum	dump_zap_stats(os, object);
5420a586ceMark Shellenbaum	(void) printf("\n");
5430a586ceMark Shellenbaum
5440a586ceMark Shellenbaum	for (zap_cursor_init(&zc, os, object);
5450a586ceMark Shellenbaum	    zap_cursor_retrieve(&zc, &attr) == 0;
5460a586ceMark Shellenbaum	    zap_cursor_advance(&zc)) {
5470a586ceMark Shellenbaum		(void) printf("\t\t%s = [", attr.za_name);
5480a586ceMark Shellenbaum		if (attr.za_num_integers == 0) {
5490a586ceMark Shellenbaum			(void) printf("\n");
5500a586ceMark Shellenbaum			continue;
5510a586ceMark Shellenbaum		}
5520a586ceMark Shellenbaum
5530a586ceMark Shellenbaum		VERIFY(attr.za_integer_length == 2);
5540a586ceMark Shellenbaum		layout_attrs = umem_zalloc(attr.za_num_integers *
5550a586ceMark Shellenbaum		    attr.za_integer_length, UMEM_NOFAIL);
5560a586ceMark Shellenbaum
5570a586ceMark Shellenbaum		VERIFY(zap_lookup(os, object, attr.za_name,
5580a586ceMark Shellenbaum		    attr.za_integer_length,
5590a586ceMark Shellenbaum		    attr.za_num_integers, layout_attrs) == 0);
5600a586ceMark Shellenbaum
5610a586ceMark Shellenbaum		for (i = 0; i != attr.za_num_integers; i++)
5620a586ceMark Shellenbaum			(void) printf(" %d ", (int)layout_attrs[i]);
5630a586ceMark Shellenbaum		(void) printf("]\n");
5640a586ceMark Shellenbaum		umem_free(layout_attrs,
5650a586ceMark Shellenbaum		    attr.za_num_integers * attr.za_integer_length);
5660a586ceMark Shellenbaum	}
5670a586ceMark Shellenbaum	zap_cursor_fini(&zc);
5680a586ceMark Shellenbaum}
5690a586ceMark Shellenbaum
5700a586ceMark Shellenbaum/*ARGSUSED*/
5710a586ceMark Shellenbaumstatic void
572e743726ahrensdump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
573e743726ahrens{
574e743726ahrens	zap_cursor_t zc;
575e743726ahrens	zap_attribute_t attr;
576e743726ahrens	const char *typenames[] = {
577e743726ahrens		/* 0 */ "not specified",
578e743726ahrens		/* 1 */ "FIFO",
579e743726ahrens		/* 2 */ "Character Device",
580e743726ahrens		/* 3 */ "3 (invalid)",
581e743726ahrens		/* 4 */ "Directory",
582e743726ahrens		/* 5 */ "5 (invalid)",
583e743726ahrens		/* 6 */ "Block Device",
584e743726ahrens		/* 7 */ "7 (invalid)",
585e743726ahrens		/* 8 */ "Regular File",
586e743726ahrens		/* 9 */ "9 (invalid)",
587e743726ahrens		/* 10 */ "Symbolic Link",
588e743726ahrens		/* 11 */ "11 (invalid)",
589e743726ahrens		/* 12 */ "Socket",
590e743726ahrens		/* 13 */ "Door",
591e743726ahrens		/* 14 */ "Event Port",
592e743726ahrens		/* 15 */ "15 (invalid)",
593e743726ahrens	};
594e743726ahrens
595e743726ahrens	dump_zap_stats(os, object);
596e743726ahrens	(void) printf("\n");
597e743726ahrens
598e743726ahrens	for (zap_cursor_init(&zc, os, object);
599e743726ahrens	    zap_cursor_retrieve(&zc, &attr) == 0;
600e743726ahrens	    zap_cursor_advance(&zc)) {
601e743726ahrens		(void) printf("\t\t%s = %lld (type: %s)\n",
602e743726ahrens		    attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
603e743726ahrens		    typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
604e743726ahrens	}
605e743726ahrens	zap_cursor_fini(&zc);
606e743726ahrens}
607e743726ahrens
6080713e23George Wilsonint
6090713e23George Wilsonget_dtl_refcount(vdev_t *vd)
6100713e23George Wilson{
6110713e23George Wilson	int refcount = 0;
6120713e23George Wilson
6130713e23George Wilson	if (vd->vdev_ops->vdev_op_leaf) {
6140713e23George Wilson		space_map_t *sm = vd->vdev_dtl_sm;
6150713e23George Wilson
6160713e23George Wilson		if (sm != NULL &&
6170713e23George Wilson		    sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
6180713e23George Wilson			return (1);
6190713e23George Wilson		return (0);
6200713e23George Wilson	}
6210713e23George Wilson
6220713e23George Wilson	for (int c = 0; c < vd->vdev_children; c++)
6230713e23George Wilson		refcount += get_dtl_refcount(vd->vdev_child[c]);
6240713e23George Wilson	return (refcount);
6250713e23George Wilson}
6260713e23George Wilson
6270713e23George Wilsonint
6280713e23George Wilsonget_metaslab_refcount(vdev_t *vd)
6290713e23George Wilson{
6300713e23George Wilson	int refcount = 0;
6310713e23George Wilson
6322e4c998George Wilson	if (vd->vdev_top == vd && !vd->vdev_removing) {
6330713e23George Wilson		for (int m = 0; m < vd->vdev_ms_count; m++) {
6340713e23George Wilson			space_map_t *sm = vd->vdev_ms[m]->ms_sm;
6350713e23George Wilson
6360713e23George Wilson			if (sm != NULL &&
6370713e23George Wilson			    sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
6380713e23George Wilson				refcount++;
6390713e23George Wilson		}
6400713e23George Wilson	}
6410713e23George Wilson	for (int c = 0; c < vd->vdev_children; c++)
6420713e23George Wilson		refcount += get_metaslab_refcount(vd->vdev_child[c]);
6430713e23George Wilson
6440713e23George Wilson	return (refcount);
6450713e23George Wilson}
6460713e23George Wilson
6470713e23George Wilsonstatic int
6480713e23George Wilsonverify_spacemap_refcounts(spa_t *spa)
6490713e23George Wilson{
6502acef22Matthew Ahrens	uint64_t expected_refcount = 0;
6512acef22Matthew Ahrens	uint64_t actual_refcount;
6520713e23George Wilson
6532acef22Matthew Ahrens	(void) feature_get_refcount(spa,
6542acef22Matthew Ahrens	    &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM],
6552acef22Matthew Ahrens	    &expected_refcount);
6560713e23George Wilson	actual_refcount = get_dtl_refcount(spa->spa_root_vdev);
6570713e23George Wilson	actual_refcount += get_metaslab_refcount(spa->spa_root_vdev);
6580713e23George Wilson
6590713e23George Wilson	if (expected_refcount != actual_refcount) {
6602acef22Matthew Ahrens		(void) printf("space map refcount mismatch: expected %lld != "
6612acef22Matthew Ahrens		    "actual %lld\n",
6622acef22Matthew Ahrens		    (longlong_t)expected_refcount,
6632acef22Matthew Ahrens		    (longlong_t)actual_refcount);
6640713e23George Wilson		return (2);
6650713e23George Wilson	}
6660713e23George Wilson	return (0);
6670713e23George Wilson}
6680713e23George Wilson
669fa9e406ahrensstatic void
6700713e23George Wilsondump_spacemap(objset_t *os, space_map_t *sm)
671fa9e406ahrens{
672fa9e406ahrens	uint64_t alloc, offset, entry;
6738053a26ck	char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
6748053a26ck			    "INVALID", "INVALID", "INVALID", "INVALID" };
675fa9e406ahrens
6760713e23George Wilson	if (sm == NULL)
677fa9e406ahrens		return;
678fa9e406ahrens
679fa9e406ahrens	/*
680fa9e406ahrens	 * Print out the freelist entries in both encoded and decoded form.
681fa9e406ahrens	 */
682fa9e406ahrens	alloc = 0;
6830713e23George Wilson	for (offset = 0; offset < space_map_length(sm);
6840713e23George Wilson	    offset += sizeof (entry)) {
6850713e23George Wilson		uint8_t mapshift = sm->sm_shift;
6860713e23George Wilson
6870713e23George Wilson		VERIFY0(dmu_read(os, space_map_object(sm), offset,
6887bfdf01Neil Perrin		    sizeof (entry), &entry, DMU_READ_PREFETCH));
689fa9e406ahrens		if (SM_DEBUG_DECODE(entry)) {
6900713e23George Wilson
69187219dbVictor Latushkin			(void) printf("\t    [%6llu] %s: txg %llu, pass %llu\n",
692fa9e406ahrens			    (u_longlong_t)(offset / sizeof (entry)),
693fa9e406ahrens			    ddata[SM_DEBUG_ACTION_DECODE(entry)],
6945ad8204nd			    (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
6955ad8204nd			    (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
696fa9e406ahrens		} else {
69787219dbVictor Latushkin			(void) printf("\t    [%6llu]    %c  range:"
69887219dbVictor Latushkin			    " %010llx-%010llx  size: %06llx\n",
699fa9e406ahrens			    (u_longlong_t)(offset / sizeof (entry)),
700fa9e406ahrens			    SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
7015ad8204nd			    (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
7020713e23George Wilson			    mapshift) + sm->sm_start),
7035ad8204nd			    (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
7040713e23George Wilson			    mapshift) + sm->sm_start +
7050713e23George Wilson			    (SM_RUN_DECODE(entry) << mapshift)),
7065ad8204nd			    (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
707fa9e406ahrens			if (SM_TYPE_DECODE(entry) == SM_ALLOC)
708fa9e406ahrens				alloc += SM_RUN_DECODE(entry) << mapshift;
709fa9e406ahrens			else
710fa9e406ahrens				alloc -= SM_RUN_DECODE(entry) << mapshift;
711fa9e406ahrens		}
712fa9e406ahrens	}
7130713e23George Wilson	if (alloc != space_map_allocated(sm)) {
714fa9e406ahrens		(void) printf("space_map_object alloc (%llu) INCONSISTENT "
715fa9e406ahrens		    "with space map summary (%llu)\n",
7160713e23George Wilson		    (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc);
717fa9e406ahrens	}
718fa9e406ahrens}
719fa9e406ahrens
720fa9e406ahrensstatic void
721d6e555bGeorge Wilsondump_metaslab_stats(metaslab_t *msp)
722d6e555bGeorge Wilson{
7233f9d6adLin Ling	char maxbuf[32];
7240713e23George Wilson	range_tree_t *rt = msp->ms_tree;
7250713e23George Wilson	avl_tree_t *t = &msp->ms_size_tree;
7260713e23George Wilson	int free_pct = range_tree_space(rt) * 100 / msp->ms_size;
727d6e555bGeorge Wilson
7280713e23George Wilson	zdb_nicenum(metaslab_block_maxsize(msp), maxbuf);
729d6e555bGeorge Wilson
73087219dbVictor Latushkin	(void) printf("\t %25s %10lu   %7s  %6s   %4s %4d%%\n",
731d6e555bGeorge Wilson	    "segments", avl_numnodes(t), "maxsize", maxbuf,
732d6e555bGeorge Wilson	    "freepct", free_pct);
7330713e23George Wilson	(void) printf("\tIn-memory histogram:\n");
7340713e23George Wilson	dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
735d6e555bGeorge Wilson}
736d6e555bGeorge Wilson
737d6e555bGeorge Wilsonstatic void
738fa9e406ahrensdump_metaslab(metaslab_t *msp)
739fa9e406ahrens{
740fa9e406ahrens	vdev_t *vd = msp->ms_group->mg_vd;
741fa9e406ahrens	spa_t *spa = vd->vdev_spa;
7420713e23George Wilson	space_map_t *sm = msp->ms_sm;
7433f9d6adLin Ling	char freebuf[32];
744fa9e406ahrens
7450713e23George Wilson	zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf);
746fa9e406ahrens
747fa9e406ahrens	(void) printf(
74887219dbVictor Latushkin	    "\tmetaslab %6llu   offset %12llx   spacemap %6llu   free    %5s\n",
7490713e23George Wilson	    (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start,
7500713e23George Wilson	    (u_longlong_t)space_map_object(sm), freebuf);
751fa9e406ahrens
7520713e23George Wilson	if (dump_opt['m'] > 2 && !dump_opt['L']) {
753d6e555bGeorge Wilson		mutex_enter(&msp->ms_lock);
7540713e23George Wilson		metaslab_load_wait(msp);
7550713e23George Wilson		if (!msp->ms_loaded) {
7560713e23George Wilson			VERIFY0(metaslab_load(msp));
7570713e23George Wilson			range_tree_stat_verify(msp->ms_tree);
7580713e23George Wilson		}
759bc3975bVictor Latushkin		dump_metaslab_stats(msp);
7600713e23George Wilson		metaslab_unload(msp);
761d6e555bGeorge Wilson		mutex_exit(&msp->ms_lock);
762d6e555bGeorge Wilson	}
763d6e555bGeorge Wilson
7640713e23George Wilson	if (dump_opt['m'] > 1 && sm != NULL &&
7652acef22Matthew Ahrens	    spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) {
7660713e23George Wilson		/*
7670713e23George Wilson		 * The space map histogram represents free space in chunks
7680713e23George Wilson		 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift).
7690713e23George Wilson		 */
7702e4c998George Wilson		(void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n",
7712e4c998George Wilson		    (u_longlong_t)msp->ms_fragmentation);
7720713e23George Wilson		dump_histogram(sm->sm_phys->smp_histogram,
7732e4c998George Wilson		    SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift);
7740713e23George Wilson	}
7750713e23George Wilson
7760713e23George Wilson	if (dump_opt['d'] > 5 || dump_opt['m'] > 3) {
7770713e23George Wilson		ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift));
778d6e555bGeorge Wilson
779d6e555bGeorge Wilson		mutex_enter(&msp->ms_lock);
7800713e23George Wilson		dump_spacemap(spa->spa_meta_objset, msp->ms_sm);
781d6e555bGeorge Wilson		mutex_exit(&msp->ms_lock);
782d6e555bGeorge Wilson	}
78387219dbVictor Latushkin}
784fa9e406ahrens
78587219dbVictor Latushkinstatic void
78687219dbVictor Latushkinprint_vdev_metaslab_header(vdev_t *vd)
78787219dbVictor Latushkin{
78887219dbVictor Latushkin	(void) printf("\tvdev %10llu\n\t%-10s%5llu   %-19s   %-15s   %-10s\n",
78987219dbVictor Latushkin	    (u_longlong_t)vd->vdev_id,
79087219dbVictor Latushkin	    "metaslabs", (u_longlong_t)vd->vdev_ms_count,
79187219dbVictor Latushkin	    "offset", "spacemap", "free");
79287219dbVictor Latushkin	(void) printf("\t%15s   %19s   %15s   %10s\n",
79387219dbVictor Latushkin	    "---------------", "-------------------",
79487219dbVictor Latushkin	    "---------------", "-------------");
795fa9e406ahrens}
796fa9e406ahrens
797fa9e406ahrensstatic void
7982e4c998George Wilsondump_metaslab_groups(spa_t *spa)
7992e4c998George Wilson{
8002e4c998George Wilson	vdev_t *rvd = spa->spa_root_vdev;
8012e4c998George Wilson	metaslab_class_t *mc = spa_normal_class(spa);
8022e4c998George Wilson	uint64_t fragmentation;
8032e4c998George Wilson
8042e4c998George Wilson	metaslab_class_histogram_verify(mc);
8052e4c998George Wilson
8062e4c998George Wilson	for (int c = 0; c < rvd->vdev_children; c++) {
8072e4c998George Wilson		vdev_t *tvd = rvd->vdev_child[c];
8082e4c998George Wilson		metaslab_group_t *mg = tvd->vdev_mg;
8092e4c998George Wilson
8102e4c998George Wilson		if (mg->mg_class != mc)
8112e4c998George Wilson			continue;
8122e4c998George Wilson
8132e4c998George Wilson		metaslab_group_histogram_verify(mg);
8142e4c998George Wilson		mg->mg_fragmentation = metaslab_group_fragmentation(mg);
8152e4c998George Wilson
8162e4c998George Wilson		(void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t"
8172e4c998George Wilson		    "fragmentation",
8182e4c998George Wilson		    (u_longlong_t)tvd->vdev_id,
8192e4c998George Wilson		    (u_longlong_t)tvd->vdev_ms_count);
8202e4c998George Wilson		if (mg->mg_fragmentation == ZFS_FRAG_INVALID) {
8212e4c998George Wilson			(void) printf("%3s\n", "-");
8222e4c998George Wilson		} else {
8232e4c998George Wilson			(void) printf("%3llu%%\n",
8242e4c998George Wilson			    (u_longlong_t)mg->mg_fragmentation);
8252e4c998George Wilson		}
8262e4c998George Wilson		dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
8272e4c998George Wilson	}
8282e4c998George Wilson
8292e4c998George Wilson	(void) printf("\tpool %s\tfragmentation", spa_name(spa));
8302e4c998George Wilson	fragmentation = metaslab_class_fragmentation(mc);
8312e4c998George Wilson	if (fragmentation == ZFS_FRAG_INVALID)
8322e4c998George Wilson		(void) printf("\t%3s\n", "-");
8332e4c998George Wilson	else
8342e4c998George Wilson		(void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation);
8352e4c998George Wilson	dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
8362e4c998George Wilson}
8372e4c998George Wilson
8382e4c998George Wilsonstatic void
839fa9e406ahrensdump_metaslabs(spa_t *spa)
840fa9e406ahrens{
84187219dbVictor Latushkin	vdev_t *vd, *rvd = spa->spa_root_vdev;
84287219dbVictor Latushkin	uint64_t m, c = 0, children = rvd->vdev_children;
843fa9e406ahrens
844fa9e406ahrens	(void) printf("\nMetaslabs:\n");
845fa9e406ahrens
84687219dbVictor Latushkin	if (!dump_opt['d'] && zopt_objects > 0) {
84787219dbVictor Latushkin		c = zopt_object[0];
84887219dbVictor Latushkin
84987219dbVictor Latushkin		if (c >= children)
85087219dbVictor Latushkin			(void) fatal("bad vdev id: %llu", (u_longlong_t)c);
851fa9e406ahrens
85287219dbVictor Latushkin		if (zopt_objects > 1) {
85387219dbVictor Latushkin			vd = rvd->vdev_child[c];
85487219dbVictor Latushkin			print_vdev_metaslab_header(vd);
85587219dbVictor Latushkin
85687219dbVictor Latushkin			for (m = 1; m < zopt_objects; m++) {
85787219dbVictor Latushkin				if (zopt_object[m] < vd->vdev_ms_count)
85887219dbVictor Latushkin					dump_metaslab(
85987219dbVictor Latushkin					    vd->vdev_ms[zopt_object[m]]);
86087219dbVictor Latushkin				else
861