4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 * Copyright (c) 2012 by Delphix. All rights reserved.
24 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
25 * Copyright (c) 2013 Steven Hartland. All rights reserved.
29 * The objective of this program is to provide a DMU/ZAP/SPA stress test
30 * that runs entirely in userland, is easy to use, and easy to extend.
32 * The overall design of the ztest program is as follows:
34 * (1) For each major functional area (e.g. adding vdevs to a pool,
35 * creating and destroying datasets, reading and writing objects, etc)
36 * we have a simple routine to test that functionality. These
37 * individual routines do not have to do anything "stressful".
39 * (2) We turn these simple functionality tests into a stress test by
40 * running them all in parallel, with as many threads as desired,
41 * and spread across as many datasets, objects, and vdevs as desired.
43 * (3) While all this is happening, we inject faults into the pool to
44 * verify that self-healing data really works.
46 * (4) Every time we open a dataset, we change its checksum and compression
47 * functions. Thus even individual objects vary from block to block
48 * in which checksum they use and whether they're compressed.
50 * (5) To verify that we never lose on-disk consistency after a crash,
51 * we run the entire test in a child of the main process.
52 * At random times, the child self-immolates with a SIGKILL.
53 * This is the software equivalent of pulling the power cord.
54 * The parent then runs the test again, using the existing
55 * storage pool, as many times as desired. If backwards compatability
56 * testing is enabled ztest will sometimes run the "older" version
57 * of ztest after a SIGKILL.
59 * (6) To verify that we don't have future leaks or temporal incursions,
60 * many of the functional tests record the transaction group number
61 * as part of their data. When reading old data, they verify that
62 * the transaction group number is less than the current, open txg.
63 * If you add a new test, please do this if applicable.
65 * When run with no arguments, ztest runs for about five minutes and
66 * produces no output if successful. To get a little bit of information,
67 * specify -V. To get more information, specify -VV, and so on.
69 * To turn this into an overnight stress test, use -T to specify run time.
71 * You can ask more more vdevs [-v], datasets [-d], or threads [-t]
72 * to increase the pool capacity, fanout, and overall stress level.
74 * Use the -k option to set the desired frequency of kills.
76 * When ztest invokes itself it passes all relevant information through a
77 * temporary file which is mmap-ed in the child process. This allows shared
78 * memory to survive the exec syscall. The ztest_shared_hdr_t struct is always
79 * stored at offset 0 of this file and contains information on the size and
80 * number of shared structures in the file. The information stored in this file
81 * must remain backwards compatible with older versions of ztest so that
82 * ztest can invoke them during backwards compatibility testing (-B).
85 #include <sys/zfs_context.h>
91 #include <sys/dmu_objset.h>
97 #include <sys/resource.h>
100 #include <sys/zil_impl.h>
101 #include <sys/vdev_impl.h>
102 #include <sys/vdev_file.h>
103 #include <sys/spa_impl.h>
104 #include <sys/metaslab_impl.h>
105 #include <sys/dsl_prop.h>
106 #include <sys/dsl_dataset.h>
107 #include <sys/dsl_destroy.h>
108 #include <sys/dsl_scan.h>
109 #include <sys/zio_checksum.h>
110 #include <sys/refcount.h>
111 #include <sys/zfeature.h>
112 #include <sys/dsl_userhold.h>
114 #include <stdio_ext.h>
122 #include <sys/fs/zfs.h>
123 #include <libnvpair.h>
125 static int ztest_fd_data
= -1;
126 static int ztest_fd_rand
= -1;
128 typedef struct ztest_shared_hdr
{
129 uint64_t zh_hdr_size
;
130 uint64_t zh_opts_size
;
132 uint64_t zh_stats_size
;
133 uint64_t zh_stats_count
;
135 uint64_t zh_ds_count
;
136 } ztest_shared_hdr_t
;
138 static ztest_shared_hdr_t
*ztest_shared_hdr
;
140 typedef struct ztest_shared_opts
{
141 char zo_pool
[MAXNAMELEN
];
142 char zo_dir
[MAXNAMELEN
];
143 char zo_alt_ztest
[MAXNAMELEN
];
144 char zo_alt_libpath
[MAXNAMELEN
];
146 uint64_t zo_vdevtime
;
154 uint64_t zo_passtime
;
155 uint64_t zo_killrate
;
159 uint64_t zo_maxloops
;
160 uint64_t zo_metaslab_gang_bang
;
161 } ztest_shared_opts_t
;
163 static const ztest_shared_opts_t ztest_opts_defaults
= {
164 .zo_pool
= { 'z', 't', 'e', 's', 't', '\0' },
165 .zo_dir
= { '/', 't', 'm', 'p', '\0' },
166 .zo_alt_ztest
= { '\0' },
167 .zo_alt_libpath
= { '\0' },
169 .zo_ashift
= SPA_MINBLOCKSHIFT
,
172 .zo_raidz_parity
= 1,
173 .zo_vdev_size
= SPA_MINDEVSIZE
,
176 .zo_passtime
= 60, /* 60 seconds */
177 .zo_killrate
= 70, /* 70% kill rate */
180 .zo_time
= 300, /* 5 minutes */
181 .zo_maxloops
= 50, /* max loops during spa_freeze() */
182 .zo_metaslab_gang_bang
= 32 << 10
185 extern uint64_t metaslab_gang_bang
;
186 extern uint64_t metaslab_df_alloc_threshold
;
187 extern uint64_t zfs_deadman_synctime
;
189 static ztest_shared_opts_t
*ztest_shared_opts
;
190 static ztest_shared_opts_t ztest_opts
;
192 typedef struct ztest_shared_ds
{
196 static ztest_shared_ds_t
*ztest_shared_ds
;
197 #define ZTEST_GET_SHARED_DS(d) (&ztest_shared_ds[d])
199 #define BT_MAGIC 0x123456789abcdefULL
200 #define MAXFAULTS() \
201 (MAX(zs->zs_mirrors, 1) * (ztest_opts.zo_raidz_parity + 1) - 1)
205 ZTEST_IO_WRITE_PATTERN
,
206 ZTEST_IO_WRITE_ZEROES
,
213 typedef struct ztest_block_tag
{
223 typedef struct bufwad
{
230 * XXX -- fix zfs range locks to be generic so we can use them here.
252 #define ZTEST_RANGE_LOCKS 64
253 #define ZTEST_OBJECT_LOCKS 64
256 * Object descriptor. Used as a template for object lookup/create/remove.
258 typedef struct ztest_od
{
261 dmu_object_type_t od_type
;
262 dmu_object_type_t od_crtype
;
263 uint64_t od_blocksize
;
264 uint64_t od_crblocksize
;
267 char od_name
[MAXNAMELEN
];
273 typedef struct ztest_ds
{
274 ztest_shared_ds_t
*zd_shared
;
276 rwlock_t zd_zilog_lock
;
278 ztest_od_t
*zd_od
; /* debugging aid */
279 char zd_name
[MAXNAMELEN
];
280 mutex_t zd_dirobj_lock
;
281 rll_t zd_object_lock
[ZTEST_OBJECT_LOCKS
];
282 rll_t zd_range_lock
[ZTEST_RANGE_LOCKS
];
286 * Per-iteration state.
288 typedef void ztest_func_t(ztest_ds_t
*zd
, uint64_t id
);
290 typedef struct ztest_info
{
291 ztest_func_t
*zi_func
; /* test function */
292 uint64_t zi_iters
; /* iterations per execution */
293 uint64_t *zi_interval
; /* execute every <interval> seconds */
296 typedef struct ztest_shared_callstate
{
297 uint64_t zc_count
; /* per-pass count */
298 uint64_t zc_time
; /* per-pass time */
299 uint64_t zc_next
; /* next time to call this function */
300 } ztest_shared_callstate_t
;
302 static ztest_shared_callstate_t
*ztest_shared_callstate
;
303 #define ZTEST_GET_SHARED_CALLSTATE(c) (&ztest_shared_callstate[c])
306 * Note: these aren't static because we want dladdr() to work.
308 ztest_func_t ztest_dmu_read_write
;
309 ztest_func_t ztest_dmu_write_parallel
;
310 ztest_func_t ztest_dmu_object_alloc_free
;
311 ztest_func_t ztest_dmu_commit_callbacks
;
312 ztest_func_t ztest_zap
;
313 ztest_func_t ztest_zap_parallel
;
314 ztest_func_t ztest_zil_commit
;
315 ztest_func_t ztest_zil_remount
;
316 ztest_func_t ztest_dmu_read_write_zcopy
;
317 ztest_func_t ztest_dmu_objset_create_destroy
;
318 ztest_func_t ztest_dmu_prealloc
;
319 ztest_func_t ztest_fzap
;
320 ztest_func_t ztest_dmu_snapshot_create_destroy
;
321 ztest_func_t ztest_dsl_prop_get_set
;
322 ztest_func_t ztest_spa_prop_get_set
;
323 ztest_func_t ztest_spa_create_destroy
;
324 ztest_func_t ztest_fault_inject
;
325 ztest_func_t ztest_ddt_repair
;
326 ztest_func_t ztest_dmu_snapshot_hold
;
327 ztest_func_t ztest_spa_rename
;
328 ztest_func_t ztest_scrub
;
329 ztest_func_t ztest_dsl_dataset_promote_busy
;
330 ztest_func_t ztest_vdev_attach_detach
;
331 ztest_func_t ztest_vdev_LUN_growth
;
332 ztest_func_t ztest_vdev_add_remove
;
333 ztest_func_t ztest_vdev_aux_add_remove
;
334 ztest_func_t ztest_split_pool
;
335 ztest_func_t ztest_reguid
;
336 ztest_func_t ztest_spa_upgrade
;
338 uint64_t zopt_always
= 0ULL * NANOSEC
; /* all the time */
339 uint64_t zopt_incessant
= 1ULL * NANOSEC
/ 10; /* every 1/10 second */
340 uint64_t zopt_often
= 1ULL * NANOSEC
; /* every second */
341 uint64_t zopt_sometimes
= 10ULL * NANOSEC
; /* every 10 seconds */
342 uint64_t zopt_rarely
= 60ULL * NANOSEC
; /* every 60 seconds */
344 ztest_info_t ztest_info
[] = {
345 { ztest_dmu_read_write
, 1, &zopt_always
},
346 { ztest_dmu_write_parallel
, 10, &zopt_always
},
347 { ztest_dmu_object_alloc_free
, 1, &zopt_always
},
348 { ztest_dmu_commit_callbacks
, 1, &zopt_always
},
349 { ztest_zap
, 30, &zopt_always
},
350 { ztest_zap_parallel
, 100, &zopt_always
},
351 { ztest_split_pool
, 1, &zopt_always
},
352 { ztest_zil_commit
, 1, &zopt_incessant
},
353 { ztest_zil_remount
, 1, &zopt_sometimes
},
354 { ztest_dmu_read_write_zcopy
, 1, &zopt_often
},
355 { ztest_dmu_objset_create_destroy
, 1, &zopt_often
},
356 { ztest_dsl_prop_get_set
, 1, &zopt_often
},
357 { ztest_spa_prop_get_set
, 1, &zopt_sometimes
},
359 { ztest_dmu_prealloc
, 1, &zopt_sometimes
},
361 { ztest_fzap
, 1, &zopt_sometimes
},
362 { ztest_dmu_snapshot_create_destroy
, 1, &zopt_sometimes
},
363 { ztest_spa_create_destroy
, 1, &zopt_sometimes
},
364 { ztest_fault_inject
, 1, &zopt_sometimes
},
365 { ztest_ddt_repair
, 1, &zopt_sometimes
},
366 { ztest_dmu_snapshot_hold
, 1, &zopt_sometimes
},
367 { ztest_reguid
, 1, &zopt_rarely
},
368 { ztest_spa_rename
, 1, &zopt_rarely
},
369 { ztest_scrub
, 1, &zopt_rarely
},
370 { ztest_spa_upgrade
, 1, &zopt_rarely
},
371 { ztest_dsl_dataset_promote_busy
, 1, &zopt_rarely
},
372 { ztest_vdev_attach_detach
, 1, &zopt_sometimes
},
373 { ztest_vdev_LUN_growth
, 1, &zopt_rarely
},
374 { ztest_vdev_add_remove
, 1,
375 &ztest_opts
.zo_vdevtime
},
376 { ztest_vdev_aux_add_remove
, 1,
377 &ztest_opts
.zo_vdevtime
},
380 #define ZTEST_FUNCS (sizeof (ztest_info) / sizeof (ztest_info_t))
383 * The following struct is used to hold a list of uncalled commit callbacks.
384 * The callbacks are ordered by txg number.
386 typedef struct ztest_cb_list
{
387 mutex_t zcl_callbacks_lock
;
388 list_t zcl_callbacks
;
392 * Stuff we need to share writably between parent and child.
394 typedef struct ztest_shared
{
395 boolean_t zs_do_init
;
396 hrtime_t zs_proc_start
;
397 hrtime_t zs_proc_stop
;
398 hrtime_t zs_thread_start
;
399 hrtime_t zs_thread_stop
;
400 hrtime_t zs_thread_kill
;
401 uint64_t zs_enospc_count
;
402 uint64_t zs_vdev_next_leaf
;
403 uint64_t zs_vdev_aux
;
408 uint64_t zs_metaslab_sz
;
409 uint64_t zs_metaslab_df_alloc_threshold
;
413 #define ID_PARALLEL -1ULL
415 static char ztest_dev_template
[] = "%s/%s.%llua";
416 static char ztest_aux_template
[] = "%s/%s.%s.%llu";
417 ztest_shared_t
*ztest_shared
;
419 static spa_t
*ztest_spa
= NULL
;
420 static ztest_ds_t
*ztest_ds
;
422 static mutex_t ztest_vdev_lock
;
425 * The ztest_name_lock protects the pool and dataset namespace used by
426 * the individual tests. To modify the namespace, consumers must grab
427 * this lock as writer. Grabbing the lock as reader will ensure that the
428 * namespace does not change while the lock is held.
430 static rwlock_t ztest_name_lock
;
432 static boolean_t ztest_dump_core
= B_TRUE
;
433 static boolean_t ztest_exiting
;
435 /* Global commit callback list */
436 static ztest_cb_list_t zcl
;
439 ZTEST_META_DNODE
= 0,
444 static void usage(boolean_t
) __NORETURN
;
447 * These libumem hooks provide a reasonable set of defaults for the allocator's
448 * debugging facilities.
453 return ("default,verbose"); /* $UMEM_DEBUG setting */
457 _umem_logging_init(void)
459 return ("fail,contents"); /* $UMEM_LOGGING setting */
462 #define FATAL_MSG_SZ 1024
467 fatal(int do_perror
, char *message
, ...)
470 int save_errno
= errno
;
471 char buf
[FATAL_MSG_SZ
];
473 (void) fflush(stdout
);
475 va_start(args
, message
);
476 (void) sprintf(buf
, "ztest: ");
478 (void) vsprintf(buf
+ strlen(buf
), message
, args
);
481 (void) snprintf(buf
+ strlen(buf
), FATAL_MSG_SZ
- strlen(buf
),
482 ": %s", strerror(save_errno
));
484 (void) fprintf(stderr
, "%s\n", buf
);
485 fatal_msg
= buf
; /* to ease debugging */
492 str2shift(const char *buf
)
494 const char *ends
= "BKMGTPEZ";
499 for (i
= 0; i
< strlen(ends
); i
++) {
500 if (toupper(buf
[0]) == ends
[i
])
503 if (i
== strlen(ends
)) {
504 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n",
508 if (buf
[1] == '\0' || (toupper(buf
[1]) == 'B' && buf
[2] == '\0')) {
511 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n", buf
);
517 nicenumtoull(const char *buf
)
522 val
= strtoull(buf
, &end
, 0);
524 (void) fprintf(stderr
, "ztest: bad numeric value: %s\n", buf
);
526 } else if (end
[0] == '.') {
527 double fval
= strtod(buf
, &end
);
528 fval
*= pow(2, str2shift(end
));
529 if (fval
> UINT64_MAX
) {
530 (void) fprintf(stderr
, "ztest: value too large: %s\n",
534 val
= (uint64_t)fval
;
536 int shift
= str2shift(end
);
537 if (shift
>= 64 || (val
<< shift
) >> shift
!= val
) {
538 (void) fprintf(stderr
, "ztest: value too large: %s\n",
548 usage(boolean_t requested
)
550 const ztest_shared_opts_t
*zo
= &ztest_opts_defaults
;
552 char nice_vdev_size
[10];
553 char nice_gang_bang
[10];
554 FILE *fp
= requested
? stdout
: stderr
;
556 nicenum(zo
->zo_vdev_size
, nice_vdev_size
);
557 nicenum(zo
->zo_metaslab_gang_bang
, nice_gang_bang
);
559 (void) fprintf(fp
, "Usage: %s\n"
560 "\t[-v vdevs (default: %llu)]\n"
561 "\t[-s size_of_each_vdev (default: %s)]\n"
562 "\t[-a alignment_shift (default: %d)] use 0 for random\n"
563 "\t[-m mirror_copies (default: %d)]\n"
564 "\t[-r raidz_disks (default: %d)]\n"
565 "\t[-R raidz_parity (default: %d)]\n"
566 "\t[-d datasets (default: %d)]\n"
567 "\t[-t threads (default: %d)]\n"
568 "\t[-g gang_block_threshold (default: %s)]\n"
569 "\t[-i init_count (default: %d)] initialize pool i times\n"
570 "\t[-k kill_percentage (default: %llu%%)]\n"
571 "\t[-p pool_name (default: %s)]\n"
572 "\t[-f dir (default: %s)] file directory for vdev files\n"
573 "\t[-V] verbose (use multiple times for ever more blather)\n"
574 "\t[-E] use existing pool instead of creating new one\n"
575 "\t[-T time (default: %llu sec)] total run time\n"
576 "\t[-F freezeloops (default: %llu)] max loops in spa_freeze()\n"
577 "\t[-P passtime (default: %llu sec)] time per pass\n"
578 "\t[-B alt_ztest (default: <none>)] alternate ztest path\n"
579 "\t[-h] (print help)\n"
582 (u_longlong_t
)zo
->zo_vdevs
, /* -v */
583 nice_vdev_size
, /* -s */
584 zo
->zo_ashift
, /* -a */
585 zo
->zo_mirrors
, /* -m */
586 zo
->zo_raidz
, /* -r */
587 zo
->zo_raidz_parity
, /* -R */
588 zo
->zo_datasets
, /* -d */
589 zo
->zo_threads
, /* -t */
590 nice_gang_bang
, /* -g */
591 zo
->zo_init
, /* -i */
592 (u_longlong_t
)zo
->zo_killrate
, /* -k */
593 zo
->zo_pool
, /* -p */
595 (u_longlong_t
)zo
->zo_time
, /* -T */
596 (u_longlong_t
)zo
->zo_maxloops
, /* -F */
597 (u_longlong_t
)zo
->zo_passtime
);
598 exit(requested
? 0 : 1);
602 process_options(int argc
, char **argv
)
605 ztest_shared_opts_t
*zo
= &ztest_opts
;
609 char altdir
[MAXNAMELEN
] = { 0 };
611 bcopy(&ztest_opts_defaults
, zo
, sizeof (*zo
));
613 while ((opt
= getopt(argc
, argv
,
614 "v:s:a:m:r:R:d:t:g:i:k:p:f:VET:P:hF:B:")) != EOF
) {
631 value
= nicenumtoull(optarg
);
635 zo
->zo_vdevs
= value
;
638 zo
->zo_vdev_size
= MAX(SPA_MINDEVSIZE
, value
);
641 zo
->zo_ashift
= value
;
644 zo
->zo_mirrors
= value
;
647 zo
->zo_raidz
= MAX(1, value
);
650 zo
->zo_raidz_parity
= MIN(MAX(value
, 1), 3);
653 zo
->zo_datasets
= MAX(1, value
);
656 zo
->zo_threads
= MAX(1, value
);
659 zo
->zo_metaslab_gang_bang
= MAX(SPA_MINBLOCKSIZE
<< 1,
666 zo
->zo_killrate
= value
;
669 (void) strlcpy(zo
->zo_pool
, optarg
,
670 sizeof (zo
->zo_pool
));
673 path
= realpath(optarg
, NULL
);
675 (void) fprintf(stderr
, "error: %s: %s\n",
676 optarg
, strerror(errno
));
679 (void) strlcpy(zo
->zo_dir
, path
,
680 sizeof (zo
->zo_dir
));
693 zo
->zo_passtime
= MAX(1, value
);
696 zo
->zo_maxloops
= MAX(1, value
);
699 (void) strlcpy(altdir
, optarg
, sizeof (altdir
));
711 zo
->zo_raidz_parity
= MIN(zo
->zo_raidz_parity
, zo
->zo_raidz
- 1);
714 (zo
->zo_vdevs
> 0 ? zo
->zo_time
* NANOSEC
/ zo
->zo_vdevs
:
717 if (strlen(altdir
) > 0) {
725 cmd
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
726 realaltdir
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
728 VERIFY(NULL
!= realpath(getexecname(), cmd
));
729 if (0 != access(altdir
, F_OK
)) {
730 ztest_dump_core
= B_FALSE
;
731 fatal(B_TRUE
, "invalid alternate ztest path: %s",
734 VERIFY(NULL
!= realpath(altdir
, realaltdir
));
737 * 'cmd' should be of the form "<anything>/usr/bin/<isa>/ztest".
738 * We want to extract <isa> to determine if we should use
739 * 32 or 64 bit binaries.
741 bin
= strstr(cmd
, "/usr/bin/");
742 ztest
= strstr(bin
, "/ztest");
744 isalen
= ztest
- isa
;
745 (void) snprintf(zo
->zo_alt_ztest
, sizeof (zo
->zo_alt_ztest
),
746 "%s/usr/bin/%.*s/ztest", realaltdir
, isalen
, isa
);
747 (void) snprintf(zo
->zo_alt_libpath
, sizeof (zo
->zo_alt_libpath
),
748 "%s/usr/lib/%.*s", realaltdir
, isalen
, isa
);
750 if (0 != access(zo
->zo_alt_ztest
, X_OK
)) {
751 ztest_dump_core
= B_FALSE
;
752 fatal(B_TRUE
, "invalid alternate ztest: %s",
754 } else if (0 != access(zo
->zo_alt_libpath
, X_OK
)) {
755 ztest_dump_core
= B_FALSE
;
756 fatal(B_TRUE
, "invalid alternate lib directory %s",
760 umem_free(cmd
, MAXPATHLEN
);
761 umem_free(realaltdir
, MAXPATHLEN
);
766 ztest_kill(ztest_shared_t
*zs
)
768 zs
->zs_alloc
= metaslab_class_get_alloc(spa_normal_class(ztest_spa
));
769 zs
->zs_space
= metaslab_class_get_space(spa_normal_class(ztest_spa
));
770 (void) kill(getpid(), SIGKILL
);
774 ztest_random(uint64_t range
)
778 ASSERT3S(ztest_fd_rand
, >=, 0);
783 if (read(ztest_fd_rand
, &r
, sizeof (r
)) != sizeof (r
))
784 fatal(1, "short read from /dev/urandom");
791 ztest_record_enospc(const char *s
)
793 ztest_shared
->zs_enospc_count
++;
797 ztest_get_ashift(void)
799 if (ztest_opts
.zo_ashift
== 0)
800 return (SPA_MINBLOCKSHIFT
+ ztest_random(3));
801 return (ztest_opts
.zo_ashift
);
805 make_vdev_file(char *path
, char *aux
, char *pool
, size_t size
, uint64_t ashift
)
807 char pathbuf
[MAXPATHLEN
];
812 ashift
= ztest_get_ashift();
818 vdev
= ztest_shared
->zs_vdev_aux
;
819 (void) snprintf(path
, sizeof (pathbuf
),
820 ztest_aux_template
, ztest_opts
.zo_dir
,
821 pool
== NULL
? ztest_opts
.zo_pool
: pool
,
824 vdev
= ztest_shared
->zs_vdev_next_leaf
++;
825 (void) snprintf(path
, sizeof (pathbuf
),
826 ztest_dev_template
, ztest_opts
.zo_dir
,
827 pool
== NULL
? ztest_opts
.zo_pool
: pool
, vdev
);
832 int fd
= open(path
, O_RDWR
| O_CREAT
| O_TRUNC
, 0666);
834 fatal(1, "can't open %s", path
);
835 if (ftruncate(fd
, size
) != 0)
836 fatal(1, "can't ftruncate %s", path
);
840 VERIFY(nvlist_alloc(&file
, NV_UNIQUE_NAME
, 0) == 0);
841 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_FILE
) == 0);
842 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_PATH
, path
) == 0);
843 VERIFY(nvlist_add_uint64(file
, ZPOOL_CONFIG_ASHIFT
, ashift
) == 0);
849 make_vdev_raidz(char *path
, char *aux
, char *pool
, size_t size
,
850 uint64_t ashift
, int r
)
852 nvlist_t
*raidz
, **child
;
856 return (make_vdev_file(path
, aux
, pool
, size
, ashift
));
857 child
= umem_alloc(r
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
859 for (c
= 0; c
< r
; c
++)
860 child
[c
] = make_vdev_file(path
, aux
, pool
, size
, ashift
);
862 VERIFY(nvlist_alloc(&raidz
, NV_UNIQUE_NAME
, 0) == 0);
863 VERIFY(nvlist_add_string(raidz
, ZPOOL_CONFIG_TYPE
,
864 VDEV_TYPE_RAIDZ
) == 0);
865 VERIFY(nvlist_add_uint64(raidz
, ZPOOL_CONFIG_NPARITY
,
866 ztest_opts
.zo_raidz_parity
) == 0);
867 VERIFY(nvlist_add_nvlist_array(raidz
, ZPOOL_CONFIG_CHILDREN
,
870 for (c
= 0; c
< r
; c
++)
871 nvlist_free(child
[c
]);
873 umem_free(child
, r
* sizeof (nvlist_t
*));
879 make_vdev_mirror(char *path
, char *aux
, char *pool
, size_t size
,
880 uint64_t ashift
, int r
, int m
)
882 nvlist_t
*mirror
, **child
;
886 return (make_vdev_raidz(path
, aux
, pool
, size
, ashift
, r
));
888 child
= umem_alloc(m
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
890 for (c
= 0; c
< m
; c
++)
891 child
[c
] = make_vdev_raidz(path
, aux
, pool
, size
, ashift
, r
);
893 VERIFY(nvlist_alloc(&mirror
, NV_UNIQUE_NAME
, 0) == 0);
894 VERIFY(nvlist_add_string(mirror
, ZPOOL_CONFIG_TYPE
,
895 VDEV_TYPE_MIRROR
) == 0);
896 VERIFY(nvlist_add_nvlist_array(mirror
, ZPOOL_CONFIG_CHILDREN
,
899 for (c
= 0; c
< m
; c
++)
900 nvlist_free(child
[c
]);
902 umem_free(child
, m
* sizeof (nvlist_t
*));
908 make_vdev_root(char *path
, char *aux
, char *pool
, size_t size
, uint64_t ashift
,
909 int log
, int r
, int m
, int t
)
911 nvlist_t
*root
, **child
;
916 child
= umem_alloc(t
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
918 for (c
= 0; c
< t
; c
++) {
919 child
[c
] = make_vdev_mirror(path
, aux
, pool
, size
, ashift
,
921 VERIFY(nvlist_add_uint64(child
[c
], ZPOOL_CONFIG_IS_LOG
,
925 VERIFY(nvlist_alloc(&root
, NV_UNIQUE_NAME
, 0) == 0);
926 VERIFY(nvlist_add_string(root
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_ROOT
) == 0);
927 VERIFY(nvlist_add_nvlist_array(root
, aux
? aux
: ZPOOL_CONFIG_CHILDREN
,
930 for (c
= 0; c
< t
; c
++)
931 nvlist_free(child
[c
]);
933 umem_free(child
, t
* sizeof (nvlist_t
*));
939 * Find a random spa version. Returns back a random spa version in the
940 * range [initial_version, SPA_VERSION_FEATURES].
943 ztest_random_spa_version(uint64_t initial_version
)
945 uint64_t version
= initial_version
;
947 if (version
<= SPA_VERSION_BEFORE_FEATURES
) {
949 ztest_random(SPA_VERSION_BEFORE_FEATURES
- version
+ 1);
952 if (version
> SPA_VERSION_BEFORE_FEATURES
)
953 version
= SPA_VERSION_FEATURES
;
955 ASSERT(SPA_VERSION_IS_SUPPORTED(version
));
960 ztest_random_blocksize(void)
962 return (1 << (SPA_MINBLOCKSHIFT
+
963 ztest_random(SPA_MAXBLOCKSHIFT
- SPA_MINBLOCKSHIFT
+ 1)));
967 ztest_random_ibshift(void)
969 return (DN_MIN_INDBLKSHIFT
+
970 ztest_random(DN_MAX_INDBLKSHIFT
- DN_MIN_INDBLKSHIFT
+ 1));
974 ztest_random_vdev_top(spa_t
*spa
, boolean_t log_ok
)
977 vdev_t
*rvd
= spa
->spa_root_vdev
;
980 ASSERT(spa_config_held(spa
, SCL_ALL
, RW_READER
) != 0);
983 top
= ztest_random(rvd
->vdev_children
);
984 tvd
= rvd
->vdev_child
[top
];
985 } while (tvd
->vdev_ishole
|| (tvd
->vdev_islog
&& !log_ok
) ||
986 tvd
->vdev_mg
== NULL
|| tvd
->vdev_mg
->mg_class
== NULL
);
992 ztest_random_dsl_prop(zfs_prop_t prop
)
997 value
= zfs_prop_random_value(prop
, ztest_random(-1ULL));
998 } while (prop
== ZFS_PROP_CHECKSUM
&& value
== ZIO_CHECKSUM_OFF
);
1004 ztest_dsl_prop_set_uint64(char *osname
, zfs_prop_t prop
, uint64_t value
,
1007 const char *propname
= zfs_prop_to_name(prop
);
1008 const char *valname
;
1009 char setpoint
[MAXPATHLEN
];
1013 error
= dsl_prop_set_int(osname
, propname
,
1014 (inherit
? ZPROP_SRC_NONE
: ZPROP_SRC_LOCAL
), value
);
1016 if (error
== ENOSPC
) {
1017 ztest_record_enospc(FTAG
);
1022 VERIFY0(dsl_prop_get_integer(osname
, propname
, &curval
, setpoint
));
1024 if (ztest_opts
.zo_verbose
>= 6) {
1025 VERIFY(zfs_prop_index_to_string(prop
, curval
, &valname
) == 0);
1026 (void) printf("%s %s = %s at '%s'\n",
1027 osname
, propname
, valname
, setpoint
);
1034 ztest_spa_prop_set_uint64(zpool_prop_t prop
, uint64_t value
)
1036 spa_t
*spa
= ztest_spa
;
1037 nvlist_t
*props
= NULL
;
1040 VERIFY(nvlist_alloc(&props
, NV_UNIQUE_NAME
, 0) == 0);
1041 VERIFY(nvlist_add_uint64(props
, zpool_prop_to_name(prop
), value
) == 0);
1043 error
= spa_prop_set(spa
, props
);
1047 if (error
== ENOSPC
) {
1048 ztest_record_enospc(FTAG
);
1057 ztest_rll_init(rll_t
*rll
)
1059 rll
->rll_writer
= NULL
;
1060 rll
->rll_readers
= 0;
1061 VERIFY(_mutex_init(&rll
->rll_lock
, USYNC_THREAD
, NULL
) == 0);
1062 VERIFY(cond_init(&rll
->rll_cv
, USYNC_THREAD
, NULL
) == 0);
1066 ztest_rll_destroy(rll_t
*rll
)
1068 ASSERT(rll
->rll_writer
== NULL
);
1069 ASSERT(rll
->rll_readers
== 0);
1070 VERIFY(_mutex_destroy(&rll
->rll_lock
) == 0);
1071 VERIFY(cond_destroy(&rll
->rll_cv
) == 0);
1075 ztest_rll_lock(rll_t
*rll
, rl_type_t type
)
1077 VERIFY(mutex_lock(&rll
->rll_lock
) == 0);
1079 if (type
== RL_READER
) {
1080 while (rll
->rll_writer
!= NULL
)
1081 (void) cond_wait(&rll
->rll_cv
, &rll
->rll_lock
);
1084 while (rll
->rll_writer
!= NULL
|| rll
->rll_readers
)
1085 (void) cond_wait(&rll
->rll_cv
, &rll
->rll_lock
);
1086 rll
->rll_writer
= curthread
;
1089 VERIFY(mutex_unlock(&rll
->rll_lock
) == 0);
1093 ztest_rll_unlock(rll_t
*rll
)
1095 VERIFY(mutex_lock(&rll
->rll_lock
) == 0);
1097 if (rll
->rll_writer
) {
1098 ASSERT(rll
->rll_readers
== 0);
1099 rll
->rll_writer
= NULL
;
1101 ASSERT(rll
->rll_readers
!= 0);
1102 ASSERT(rll
->rll_writer
== NULL
);
1106 if (rll
->rll_writer
== NULL
&& rll
->rll_readers
== 0)
1107 VERIFY(cond_broadcast(&rll
->rll_cv
) == 0);
1109 VERIFY(mutex_unlock(&rll
->rll_lock
) == 0);
1113 ztest_object_lock(ztest_ds_t
*zd
, uint64_t object
, rl_type_t type
)
1115 rll_t
*rll
= &zd
->zd_object_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1117 ztest_rll_lock(rll
, type
);
1121 ztest_object_unlock(ztest_ds_t
*zd
, uint64_t object
)
1123 rll_t
*rll
= &zd
->zd_object_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1125 ztest_rll_unlock(rll
);
1129 ztest_range_lock(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
,
1130 uint64_t size
, rl_type_t type
)
1132 uint64_t hash
= object
^ (offset
% (ZTEST_RANGE_LOCKS
+ 1));
1133 rll_t
*rll
= &zd
->zd_range_lock
[hash
& (ZTEST_RANGE_LOCKS
- 1)];
1136 rl
= umem_alloc(sizeof (*rl
), UMEM_NOFAIL
);
1137 rl
->rl_object
= object
;
1138 rl
->rl_offset
= offset
;
1142 ztest_rll_lock(rll
, type
);
1148 ztest_range_unlock(rl_t
*rl
)
1150 rll_t
*rll
= rl
->rl_lock
;
1152 ztest_rll_unlock(rll
);
1154 umem_free(rl
, sizeof (*rl
));
1158 ztest_zd_init(ztest_ds_t
*zd
, ztest_shared_ds_t
*szd
, objset_t
*os
)
1161 zd
->zd_zilog
= dmu_objset_zil(os
);
1162 zd
->zd_shared
= szd
;
1163 dmu_objset_name(os
, zd
->zd_name
);
1165 if (zd
->zd_shared
!= NULL
)
1166 zd
->zd_shared
->zd_seq
= 0;
1168 VERIFY(rwlock_init(&zd
->zd_zilog_lock
, USYNC_THREAD
, NULL
) == 0);
1169 VERIFY(_mutex_init(&zd
->zd_dirobj_lock
, USYNC_THREAD
, NULL
) == 0);
1171 for (int l
= 0; l
< ZTEST_OBJECT_LOCKS
; l
++)
1172 ztest_rll_init(&zd
->zd_object_lock
[l
]);
1174 for (int l
= 0; l
< ZTEST_RANGE_LOCKS
; l
++)
1175 ztest_rll_init(&zd
->zd_range_lock
[l
]);
1179 ztest_zd_fini(ztest_ds_t
*zd
)
1181 VERIFY(_mutex_destroy(&zd
->zd_dirobj_lock
) == 0);
1183 for (int l
= 0; l
< ZTEST_OBJECT_LOCKS
; l
++)
1184 ztest_rll_destroy(&zd
->zd_object_lock
[l
]);
1186 for (int l
= 0; l
< ZTEST_RANGE_LOCKS
; l
++)
1187 ztest_rll_destroy(&zd
->zd_range_lock
[l
]);
1190 #define TXG_MIGHTWAIT (ztest_random(10) == 0 ? TXG_NOWAIT : TXG_WAIT)
1193 ztest_tx_assign(dmu_tx_t
*tx
, uint64_t txg_how
, const char *tag
)
1199 * Attempt to assign tx to some transaction group.
1201 error
= dmu_tx_assign(tx
, txg_how
);
1203 if (error
== ERESTART
) {
1204 ASSERT(txg_how
== TXG_NOWAIT
);
1207 ASSERT3U(error
, ==, ENOSPC
);
1208 ztest_record_enospc(tag
);
1213 txg
= dmu_tx_get_txg(tx
);
1219 ztest_pattern_set(void *buf
, uint64_t size
, uint64_t value
)
1222 uint64_t *ip_end
= (uint64_t *)((uintptr_t)buf
+ (uintptr_t)size
);
1229 ztest_pattern_match(void *buf
, uint64_t size
, uint64_t value
)
1232 uint64_t *ip_end
= (uint64_t *)((uintptr_t)buf
+ (uintptr_t)size
);
1236 diff
|= (value
- *ip
++);
1242 ztest_bt_generate(ztest_block_tag_t
*bt
, objset_t
*os
, uint64_t object
,
1243 uint64_t offset
, uint64_t gen
, uint64_t txg
, uint64_t crtxg
)
1245 bt
->bt_magic
= BT_MAGIC
;
1246 bt
->bt_objset
= dmu_objset_id(os
);
1247 bt
->bt_object
= object
;
1248 bt
->bt_offset
= offset
;
1251 bt
->bt_crtxg
= crtxg
;
1255 ztest_bt_verify(ztest_block_tag_t
*bt
, objset_t
*os
, uint64_t object
,
1256 uint64_t offset
, uint64_t gen
, uint64_t txg
, uint64_t crtxg
)
1258 ASSERT(bt
->bt_magic
== BT_MAGIC
);
1259 ASSERT(bt
->bt_objset
== dmu_objset_id(os
));
1260 ASSERT(bt
->bt_object
== object
);
1261 ASSERT(bt
->bt_offset
== offset
);
1262 ASSERT(bt
->bt_gen
<= gen
);
1263 ASSERT(bt
->bt_txg
<= txg
);
1264 ASSERT(bt
->bt_crtxg
== crtxg
);
1267 static ztest_block_tag_t
*
1268 ztest_bt_bonus(dmu_buf_t
*db
)
1270 dmu_object_info_t doi
;
1271 ztest_block_tag_t
*bt
;
1273 dmu_object_info_from_db(db
, &doi
);
1274 ASSERT3U(doi
.doi_bonus_size
, <=, db
->db_size
);
1275 ASSERT3U(doi
.doi_bonus_size
, >=, sizeof (*bt
));
1276 bt
= (void *)((char *)db
->db_data
+ doi
.doi_bonus_size
- sizeof (*bt
));
1285 #define lrz_type lr_mode
1286 #define lrz_blocksize lr_uid
1287 #define lrz_ibshift lr_gid
1288 #define lrz_bonustype lr_rdev
1289 #define lrz_bonuslen lr_crtime[1]
1292 ztest_log_create(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_create_t
*lr
)
1294 char *name
= (void *)(lr
+ 1); /* name follows lr */
1295 size_t namesize
= strlen(name
) + 1;
1298 if (zil_replaying(zd
->zd_zilog
, tx
))
1301 itx
= zil_itx_create(TX_CREATE
, sizeof (*lr
) + namesize
);
1302 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1303 sizeof (*lr
) + namesize
- sizeof (lr_t
));
1305 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1309 ztest_log_remove(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_remove_t
*lr
, uint64_t object
)
1311 char *name
= (void *)(lr
+ 1); /* name follows lr */
1312 size_t namesize
= strlen(name
) + 1;
1315 if (zil_replaying(zd
->zd_zilog
, tx
))
1318 itx
= zil_itx_create(TX_REMOVE
, sizeof (*lr
) + namesize
);
1319 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1320 sizeof (*lr
) + namesize
- sizeof (lr_t
));
1322 itx
->itx_oid
= object
;
1323 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1327 ztest_log_write(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_write_t
*lr
)
1330 itx_wr_state_t write_state
= ztest_random(WR_NUM_STATES
);
1332 if (zil_replaying(zd
->zd_zilog
, tx
))
1335 if (lr
->lr_length
> ZIL_MAX_LOG_DATA
)
1336 write_state
= WR_INDIRECT
;
1338 itx
= zil_itx_create(TX_WRITE
,
1339 sizeof (*lr
) + (write_state
== WR_COPIED
? lr
->lr_length
: 0));
1341 if (write_state
== WR_COPIED
&&
1342 dmu_read(zd
->zd_os
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
,
1343 ((lr_write_t
*)&itx
->itx_lr
) + 1, DMU_READ_NO_PREFETCH
) != 0) {
1344 zil_itx_destroy(itx
);
1345 itx
= zil_itx_create(TX_WRITE
, sizeof (*lr
));
1346 write_state
= WR_NEED_COPY
;
1348 itx
->itx_private
= zd
;
1349 itx
->itx_wr_state
= write_state
;
1350 itx
->itx_sync
= (ztest_random(8) == 0);
1351 itx
->itx_sod
+= (write_state
== WR_NEED_COPY
? lr
->lr_length
: 0);
1353 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1354 sizeof (*lr
) - sizeof (lr_t
));
1356 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1360 ztest_log_truncate(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_truncate_t
*lr
)
1364 if (zil_replaying(zd
->zd_zilog
, tx
))
1367 itx
= zil_itx_create(TX_TRUNCATE
, sizeof (*lr
));
1368 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1369 sizeof (*lr
) - sizeof (lr_t
));
1371 itx
->itx_sync
= B_FALSE
;
1372 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1376 ztest_log_setattr(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_setattr_t
*lr
)
1380 if (zil_replaying(zd
->zd_zilog
, tx
))
1383 itx
= zil_itx_create(TX_SETATTR
, sizeof (*lr
));
1384 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1385 sizeof (*lr
) - sizeof (lr_t
));
1387 itx
->itx_sync
= B_FALSE
;
1388 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1395 ztest_replay_create(ztest_ds_t
*zd
, lr_create_t
*lr
, boolean_t byteswap
)
1397 char *name
= (void *)(lr
+ 1); /* name follows lr */
1398 objset_t
*os
= zd
->zd_os
;
1399 ztest_block_tag_t
*bbt
;
1406 byteswap_uint64_array(lr
, sizeof (*lr
));
1408 ASSERT(lr
->lr_doid
== ZTEST_DIROBJ
);
1409 ASSERT(name
[0] != '\0');
1411 tx
= dmu_tx_create(os
);
1413 dmu_tx_hold_zap(tx
, lr
->lr_doid
, B_TRUE
, name
);
1415 if (lr
->lrz_type
== DMU_OT_ZAP_OTHER
) {
1416 dmu_tx_hold_zap(tx
, DMU_NEW_OBJECT
, B_TRUE
, NULL
);
1418 dmu_tx_hold_bonus(tx
, DMU_NEW_OBJECT
);
1421 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1425 ASSERT(dmu_objset_zil(os
)->zl_replay
== !!lr
->lr_foid
);
1427 if (lr
->lrz_type
== DMU_OT_ZAP_OTHER
) {
1428 if (lr
->lr_foid
== 0) {
1429 lr
->lr_foid
= zap_create(os
,
1430 lr
->lrz_type
, lr
->lrz_bonustype
,
1431 lr
->lrz_bonuslen
, tx
);
1433 error
= zap_create_claim(os
, lr
->lr_foid
,
1434 lr
->lrz_type
, lr
->lrz_bonustype
,
1435 lr
->lrz_bonuslen
, tx
);
1438 if (lr
->lr_foid
== 0) {
1439 lr
->lr_foid
= dmu_object_alloc(os
,
1440 lr
->lrz_type
, 0, lr
->lrz_bonustype
,
1441 lr
->lrz_bonuslen
, tx
);
1443 error
= dmu_object_claim(os
, lr
->lr_foid
,
1444 lr
->lrz_type
, 0, lr
->lrz_bonustype
,
1445 lr
->lrz_bonuslen
, tx
);
1450 ASSERT3U(error
, ==, EEXIST
);
1451 ASSERT(zd
->zd_zilog
->zl_replay
);
1456 ASSERT(lr
->lr_foid
!= 0);
1458 if (lr
->lrz_type
!= DMU_OT_ZAP_OTHER
)
1459 VERIFY3U(0, ==, dmu_object_set_blocksize(os
, lr
->lr_foid
,
1460 lr
->lrz_blocksize
, lr
->lrz_ibshift
, tx
));
1462 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1463 bbt
= ztest_bt_bonus(db
);
1464 dmu_buf_will_dirty(db
, tx
);
1465 ztest_bt_generate(bbt
, os
, lr
->lr_foid
, -1ULL, lr
->lr_gen
, txg
, txg
);
1466 dmu_buf_rele(db
, FTAG
);
1468 VERIFY3U(0, ==, zap_add(os
, lr
->lr_doid
, name
, sizeof (uint64_t), 1,
1471 (void) ztest_log_create(zd
, tx
, lr
);
1479 ztest_replay_remove(ztest_ds_t
*zd
, lr_remove_t
*lr
, boolean_t byteswap
)
1481 char *name
= (void *)(lr
+ 1); /* name follows lr */
1482 objset_t
*os
= zd
->zd_os
;
1483 dmu_object_info_t doi
;
1485 uint64_t object
, txg
;
1488 byteswap_uint64_array(lr
, sizeof (*lr
));
1490 ASSERT(lr
->lr_doid
== ZTEST_DIROBJ
);
1491 ASSERT(name
[0] != '\0');
1494 zap_lookup(os
, lr
->lr_doid
, name
, sizeof (object
), 1, &object
));
1495 ASSERT(object
!= 0);
1497 ztest_object_lock(zd
, object
, RL_WRITER
);
1499 VERIFY3U(0, ==, dmu_object_info(os
, object
, &doi
));
1501 tx
= dmu_tx_create(os
);
1503 dmu_tx_hold_zap(tx
, lr
->lr_doid
, B_FALSE
, name
);
1504 dmu_tx_hold_free(tx
, object
, 0, DMU_OBJECT_END
);
1506 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1508 ztest_object_unlock(zd
, object
);
1512 if (doi
.doi_type
== DMU_OT_ZAP_OTHER
) {
1513 VERIFY3U(0, ==, zap_destroy(os
, object
, tx
));
1515 VERIFY3U(0, ==, dmu_object_free(os
, object
, tx
));
1518 VERIFY3U(0, ==, zap_remove(os
, lr
->lr_doid
, name
, tx
));
1520 (void) ztest_log_remove(zd
, tx
, lr
, object
);
1524 ztest_object_unlock(zd
, object
);
1530 ztest_replay_write(ztest_ds_t
*zd
, lr_write_t
*lr
, boolean_t byteswap
)
1532 objset_t
*os
= zd
->zd_os
;
1533 void *data
= lr
+ 1; /* data follows lr */
1534 uint64_t offset
, length
;
1535 ztest_block_tag_t
*bt
= data
;
1536 ztest_block_tag_t
*bbt
;
1537 uint64_t gen
, txg
, lrtxg
, crtxg
;
1538 dmu_object_info_t doi
;
1541 arc_buf_t
*abuf
= NULL
;
1545 byteswap_uint64_array(lr
, sizeof (*lr
));
1547 offset
= lr
->lr_offset
;
1548 length
= lr
->lr_length
;
1550 /* If it's a dmu_sync() block, write the whole block */
1551 if (lr
->lr_common
.lrc_reclen
== sizeof (lr_write_t
)) {
1552 uint64_t blocksize
= BP_GET_LSIZE(&lr
->lr_blkptr
);
1553 if (length
< blocksize
) {
1554 offset
-= offset
% blocksize
;
1559 if (bt
->bt_magic
== BSWAP_64(BT_MAGIC
))
1560 byteswap_uint64_array(bt
, sizeof (*bt
));
1562 if (bt
->bt_magic
!= BT_MAGIC
)
1565 ztest_object_lock(zd
, lr
->lr_foid
, RL_READER
);
1566 rl
= ztest_range_lock(zd
, lr
->lr_foid
, offset
, length
, RL_WRITER
);
1568 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1570 dmu_object_info_from_db(db
, &doi
);
1572 bbt
= ztest_bt_bonus(db
);
1573 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1575 crtxg
= bbt
->bt_crtxg
;
1576 lrtxg
= lr
->lr_common
.lrc_txg
;
1578 tx
= dmu_tx_create(os
);
1580 dmu_tx_hold_write(tx
, lr
->lr_foid
, offset
, length
);
1582 if (ztest_random(8) == 0 && length
== doi
.doi_data_block_size
&&
1583 P2PHASE(offset
, length
) == 0)
1584 abuf
= dmu_request_arcbuf(db
, length
);
1586 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1589 dmu_return_arcbuf(abuf
);
1590 dmu_buf_rele(db
, FTAG
);
1591 ztest_range_unlock(rl
);
1592 ztest_object_unlock(zd
, lr
->lr_foid
);
1598 * Usually, verify the old data before writing new data --
1599 * but not always, because we also want to verify correct
1600 * behavior when the data was not recently read into cache.
1602 ASSERT(offset
% doi
.doi_data_block_size
== 0);
1603 if (ztest_random(4) != 0) {
1604 int prefetch
= ztest_random(2) ?
1605 DMU_READ_PREFETCH
: DMU_READ_NO_PREFETCH
;
1606 ztest_block_tag_t rbt
;
1608 VERIFY(dmu_read(os
, lr
->lr_foid
, offset
,
1609 sizeof (rbt
), &rbt
, prefetch
) == 0);
1610 if (rbt
.bt_magic
== BT_MAGIC
) {
1611 ztest_bt_verify(&rbt
, os
, lr
->lr_foid
,
1612 offset
, gen
, txg
, crtxg
);
1617 * Writes can appear to be newer than the bonus buffer because
1618 * the ztest_get_data() callback does a dmu_read() of the
1619 * open-context data, which may be different than the data
1620 * as it was when the write was generated.
1622 if (zd
->zd_zilog
->zl_replay
) {
1623 ztest_bt_verify(bt
, os
, lr
->lr_foid
, offset
,
1624 MAX(gen
, bt
->bt_gen
), MAX(txg
, lrtxg
),
1629 * Set the bt's gen/txg to the bonus buffer's gen/txg
1630 * so that all of the usual ASSERTs will work.
1632 ztest_bt_generate(bt
, os
, lr
->lr_foid
, offset
, gen
, txg
, crtxg
);
1636 dmu_write(os
, lr
->lr_foid
, offset
, length
, data
, tx
);
1638 bcopy(data
, abuf
->b_data
, length
);
1639 dmu_assign_arcbuf(db
, offset
, abuf
, tx
);
1642 (void) ztest_log_write(zd
, tx
, lr
);
1644 dmu_buf_rele(db
, FTAG
);
1648 ztest_range_unlock(rl
);
1649 ztest_object_unlock(zd
, lr
->lr_foid
);
1655 ztest_replay_truncate(ztest_ds_t
*zd
, lr_truncate_t
*lr
, boolean_t byteswap
)
1657 objset_t
*os
= zd
->zd_os
;
1663 byteswap_uint64_array(lr
, sizeof (*lr
));
1665 ztest_object_lock(zd
, lr
->lr_foid
, RL_READER
);
1666 rl
= ztest_range_lock(zd
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
,
1669 tx
= dmu_tx_create(os
);
1671 dmu_tx_hold_free(tx
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
);
1673 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1675 ztest_range_unlock(rl
);
1676 ztest_object_unlock(zd
, lr
->lr_foid
);
1680 VERIFY(dmu_free_range(os
, lr
->lr_foid
, lr
->lr_offset
,
1681 lr
->lr_length
, tx
) == 0);
1683 (void) ztest_log_truncate(zd
, tx
, lr
);
1687 ztest_range_unlock(rl
);
1688 ztest_object_unlock(zd
, lr
->lr_foid
);
1694 ztest_replay_setattr(ztest_ds_t
*zd
, lr_setattr_t
*lr
, boolean_t byteswap
)
1696 objset_t
*os
= zd
->zd_os
;
1699 ztest_block_tag_t
*bbt
;
1700 uint64_t txg
, lrtxg
, crtxg
;
1703 byteswap_uint64_array(lr
, sizeof (*lr
));
1705 ztest_object_lock(zd
, lr
->lr_foid
, RL_WRITER
);
1707 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1709 tx
= dmu_tx_create(os
);
1710 dmu_tx_hold_bonus(tx
, lr
->lr_foid
);
1712 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1714 dmu_buf_rele(db
, FTAG
);
1715 ztest_object_unlock(zd
, lr
->lr_foid
);
1719 bbt
= ztest_bt_bonus(db
);
1720 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1721 crtxg
= bbt
->bt_crtxg
;
1722 lrtxg
= lr
->lr_common
.lrc_txg
;
1724 if (zd
->zd_zilog
->zl_replay
) {
1725 ASSERT(lr
->lr_size
!= 0);
1726 ASSERT(lr
->lr_mode
!= 0);
1730 * Randomly change the size and increment the generation.
1732 lr
->lr_size
= (ztest_random(db
->db_size
/ sizeof (*bbt
)) + 1) *
1734 lr
->lr_mode
= bbt
->bt_gen
+ 1;
1739 * Verify that the current bonus buffer is not newer than our txg.
1741 ztest_bt_verify(bbt
, os
, lr
->lr_foid
, -1ULL, lr
->lr_mode
,
1742 MAX(txg
, lrtxg
), crtxg
);
1744 dmu_buf_will_dirty(db
, tx
);
1746 ASSERT3U(lr
->lr_size
, >=, sizeof (*bbt
));
1747 ASSERT3U(lr
->lr_size
, <=, db
->db_size
);
1748 VERIFY0(dmu_set_bonus(db
, lr
->lr_size
, tx
));
1749 bbt
= ztest_bt_bonus(db
);
1751 ztest_bt_generate(bbt
, os
, lr
->lr_foid
, -1ULL, lr
->lr_mode
, txg
, crtxg
);
1753 dmu_buf_rele(db
, FTAG
);
1755 (void) ztest_log_setattr(zd
, tx
, lr
);
1759 ztest_object_unlock(zd
, lr
->lr_foid
);
1764 zil_replay_func_t
*ztest_replay_vector
[TX_MAX_TYPE
] = {
1765 NULL
, /* 0 no such transaction type */
1766 ztest_replay_create
, /* TX_CREATE */
1767 NULL
, /* TX_MKDIR */
1768 NULL
, /* TX_MKXATTR */
1769 NULL
, /* TX_SYMLINK */
1770 ztest_replay_remove
, /* TX_REMOVE */
1771 NULL
, /* TX_RMDIR */
1773 NULL
, /* TX_RENAME */
1774 ztest_replay_write
, /* TX_WRITE */
1775 ztest_replay_truncate
, /* TX_TRUNCATE */
1776 ztest_replay_setattr
, /* TX_SETATTR */
1778 NULL
, /* TX_CREATE_ACL */
1779 NULL
, /* TX_CREATE_ATTR */
1780 NULL
, /* TX_CREATE_ACL_ATTR */
1781 NULL
, /* TX_MKDIR_ACL */
1782 NULL
, /* TX_MKDIR_ATTR */
1783 NULL
, /* TX_MKDIR_ACL_ATTR */
1784 NULL
, /* TX_WRITE2 */
1788 * ZIL get_data callbacks
1792 ztest_get_done(zgd_t
*zgd
, int error
)
1794 ztest_ds_t
*zd
= zgd
->zgd_private
;
1795 uint64_t object
= zgd
->zgd_rl
->rl_object
;
1798 dmu_buf_rele(zgd
->zgd_db
, zgd
);
1800 ztest_range_unlock(zgd
->zgd_rl
);
1801 ztest_object_unlock(zd
, object
);
1803 if (error
== 0 && zgd
->zgd_bp
)
1804 zil_add_block(zgd
->zgd_zilog
, zgd
->zgd_bp
);
1806 umem_free(zgd
, sizeof (*zgd
));
1810 ztest_get_data(void *arg
, lr_write_t
*lr
, char *buf
, zio_t
*zio
)
1812 ztest_ds_t
*zd
= arg
;
1813 objset_t
*os
= zd
->zd_os
;
1814 uint64_t object
= lr
->lr_foid
;
1815 uint64_t offset
= lr
->lr_offset
;
1816 uint64_t size
= lr
->lr_length
;
1817 blkptr_t
*bp
= &lr
->lr_blkptr
;
1818 uint64_t txg
= lr
->lr_common
.lrc_txg
;
1820 dmu_object_info_t doi
;
1825 ztest_object_lock(zd
, object
, RL_READER
);
1826 error
= dmu_bonus_hold(os
, object
, FTAG
, &db
);
1828 ztest_object_unlock(zd
, object
);
1832 crtxg
= ztest_bt_bonus(db
)->bt_crtxg
;
1834 if (crtxg
== 0 || crtxg
> txg
) {
1835 dmu_buf_rele(db
, FTAG
);
1836 ztest_object_unlock(zd
, object
);
1840 dmu_object_info_from_db(db
, &doi
);
1841 dmu_buf_rele(db
, FTAG
);
1844 zgd
= umem_zalloc(sizeof (*zgd
), UMEM_NOFAIL
);
1845 zgd
->zgd_zilog
= zd
->zd_zilog
;
1846 zgd
->zgd_private
= zd
;
1848 if (buf
!= NULL
) { /* immediate write */
1849 zgd
->zgd_rl
= ztest_range_lock(zd
, object
, offset
, size
,
1852 error
= dmu_read(os
, object
, offset
, size
, buf
,
1853 DMU_READ_NO_PREFETCH
);
1856 size
= doi
.doi_data_block_size
;
1858 offset
= P2ALIGN(offset
, size
);
1860 ASSERT(offset
< size
);
1864 zgd
->zgd_rl
= ztest_range_lock(zd
, object
, offset
, size
,
1867 error
= dmu_buf_hold(os
, object
, offset
, zgd
, &db
,
1868 DMU_READ_NO_PREFETCH
);
1871 blkptr_t
*obp
= dmu_buf_get_blkptr(db
);
1873 ASSERT(BP_IS_HOLE(bp
));
1880 ASSERT(db
->db_offset
== offset
);
1881 ASSERT(db
->db_size
== size
);
1883 error
= dmu_sync(zio
, lr
->lr_common
.lrc_txg
,
1884 ztest_get_done
, zgd
);
1891 ztest_get_done(zgd
, error
);
1897 ztest_lr_alloc(size_t lrsize
, char *name
)
1900 size_t namesize
= name
? strlen(name
) + 1 : 0;
1902 lr
= umem_zalloc(lrsize
+ namesize
, UMEM_NOFAIL
);
1905 bcopy(name
, lr
+ lrsize
, namesize
);
1911 ztest_lr_free(void *lr
, size_t lrsize
, char *name
)
1913 size_t namesize
= name
? strlen(name
) + 1 : 0;
1915 umem_free(lr
, lrsize
+ namesize
);
1919 * Lookup a bunch of objects. Returns the number of objects not found.
1922 ztest_lookup(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
1927 ASSERT(_mutex_held(&zd
->zd_dirobj_lock
));
1929 for (int i
= 0; i
< count
; i
++, od
++) {
1931 error
= zap_lookup(zd
->zd_os
, od
->od_dir
, od
->od_name
,
1932 sizeof (uint64_t), 1, &od
->od_object
);
1934 ASSERT(error
== ENOENT
);
1935 ASSERT(od
->od_object
== 0);
1939 ztest_block_tag_t
*bbt
;
1940 dmu_object_info_t doi
;
1942 ASSERT(od
->od_object
!= 0);
1943 ASSERT(missing
== 0); /* there should be no gaps */
1945 ztest_object_lock(zd
, od
->od_object
, RL_READER
);
1946 VERIFY3U(0, ==, dmu_bonus_hold(zd
->zd_os
,
1947 od
->od_object
, FTAG
, &db
));
1948 dmu_object_info_from_db(db
, &doi
);
1949 bbt
= ztest_bt_bonus(db
);
1950 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1951 od
->od_type
= doi
.doi_type
;
1952 od
->od_blocksize
= doi
.doi_data_block_size
;
1953 od
->od_gen
= bbt
->bt_gen
;
1954 dmu_buf_rele(db
, FTAG
);
1955 ztest_object_unlock(zd
, od
->od_object
);
1963 ztest_create(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
1967 ASSERT(_mutex_held(&zd
->zd_dirobj_lock
));
1969 for (int i
= 0; i
< count
; i
++, od
++) {
1976 lr_create_t
*lr
= ztest_lr_alloc(sizeof (*lr
), od
->od_name
);
1978 lr
->lr_doid
= od
->od_dir
;
1979 lr
->lr_foid
= 0; /* 0 to allocate, > 0 to claim */
1980 lr
->lrz_type
= od
->od_crtype
;
1981 lr
->lrz_blocksize
= od
->od_crblocksize
;
1982 lr
->lrz_ibshift
= ztest_random_ibshift();
1983 lr
->lrz_bonustype
= DMU_OT_UINT64_OTHER
;
1984 lr
->lrz_bonuslen
= dmu_bonus_max();
1985 lr
->lr_gen
= od
->od_crgen
;
1986 lr
->lr_crtime
[0] = time(NULL
);
1988 if (ztest_replay_create(zd
, lr
, B_FALSE
) != 0) {
1989 ASSERT(missing
== 0);
1993 od
->od_object
= lr
->lr_foid
;
1994 od
->od_type
= od
->od_crtype
;
1995 od
->od_blocksize
= od
->od_crblocksize
;
1996 od
->od_gen
= od
->od_crgen
;
1997 ASSERT(od
->od_object
!= 0);
2000 ztest_lr_free(lr
, sizeof (*lr
), od
->od_name
);
2007 ztest_remove(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
2012 ASSERT(_mutex_held(&zd
->zd_dirobj_lock
));
2016 for (int i
= count
- 1; i
>= 0; i
--, od
--) {
2023 * No object was found.
2025 if (od
->od_object
== 0)
2028 lr_remove_t
*lr
= ztest_lr_alloc(sizeof (*lr
), od
->od_name
);
2030 lr
->lr_doid
= od
->od_dir
;
2032 if ((error
= ztest_replay_remove(zd
, lr
, B_FALSE
)) != 0) {
2033 ASSERT3U(error
, ==, ENOSPC
);
2038 ztest_lr_free(lr
, sizeof (*lr
), od
->od_name
);
2045 ztest_write(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
,
2051 lr
= ztest_lr_alloc(sizeof (*lr
) + size
, NULL
);
2053 lr
->lr_foid
= object
;
2054 lr
->lr_offset
= offset
;
2055 lr
->lr_length
= size
;
2057 BP_ZERO(&lr
->lr_blkptr
);
2059 bcopy(data
, lr
+ 1, size
);
2061 error
= ztest_replay_write(zd
, lr
, B_FALSE
);
2063 ztest_lr_free(lr
, sizeof (*lr
) + size
, NULL
);
2069 ztest_truncate(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
)
2074 lr
= ztest_lr_alloc(sizeof (*lr
), NULL
);
2076 lr
->lr_foid
= object
;
2077 lr
->lr_offset
= offset
;
2078 lr
->lr_length
= size
;
2080 error
= ztest_replay_truncate(zd
, lr
, B_FALSE
);
2082 ztest_lr_free(lr
, sizeof (*lr
), NULL
);
2088 ztest_setattr(ztest_ds_t
*zd
, uint64_t object
)
2093 lr
= ztest_lr_alloc(sizeof (*lr
), NULL
);
2095 lr
->lr_foid
= object
;
2099 error
= ztest_replay_setattr(zd
, lr
, B_FALSE
);
2101 ztest_lr_free(lr
, sizeof (*lr
), NULL
);
2107 ztest_prealloc(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
)
2109 objset_t
*os
= zd
->zd_os
;
2114 txg_wait_synced(dmu_objset_pool(os
), 0);
2116 ztest_object_lock(zd
, object
, RL_READER
);
2117 rl
= ztest_range_lock(zd
, object
, offset
, size
, RL_WRITER
);
2119 tx
= dmu_tx_create(os
);
2121 dmu_tx_hold_write(tx
, object
, offset
, size
);
2123 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
2126 dmu_prealloc(os
, object
, offset
, size
, tx
);
2128 txg_wait_synced(dmu_objset_pool(os
), txg
);
2130 (void) dmu_free_long_range(os
, object
, offset
, size
);
2133 ztest_range_unlock(rl
);
2134 ztest_object_unlock(zd
, object
);
2138 ztest_io(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
)
2141 ztest_block_tag_t wbt
;
2142 dmu_object_info_t doi
;
2143 enum ztest_io_type io_type
;
2147 VERIFY(dmu_object_info(zd
->zd_os
, object
, &doi
) == 0);
2148 blocksize
= doi
.doi_data_block_size
;
2149 data
= umem_alloc(blocksize
, UMEM_NOFAIL
);
2152 * Pick an i/o type at random, biased toward writing block tags.
2154 io_type
= ztest_random(ZTEST_IO_TYPES
);
2155 if (ztest_random(2) == 0)
2156 io_type
= ZTEST_IO_WRITE_TAG
;
2158 (void) rw_rdlock(&zd
->zd_zilog_lock
);
2162 case ZTEST_IO_WRITE_TAG
:
2163 ztest_bt_generate(&wbt
, zd
->zd_os
, object
, offset
, 0, 0, 0);
2164 (void) ztest_write(zd
, object
, offset
, sizeof (wbt
), &wbt
);
2167 case ZTEST_IO_WRITE_PATTERN
:
2168 (void) memset(data
, 'a' + (object
+ offset
) % 5, blocksize
);
2169 if (ztest_random(2) == 0) {
2171 * Induce fletcher2 collisions to ensure that
2172 * zio_ddt_collision() detects and resolves them
2173 * when using fletcher2-verify for deduplication.
2175 ((uint64_t *)data
)[0] ^= 1ULL << 63;
2176 ((uint64_t *)data
)[4] ^= 1ULL << 63;
2178 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2181 case ZTEST_IO_WRITE_ZEROES
:
2182 bzero(data
, blocksize
);
2183 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2186 case ZTEST_IO_TRUNCATE
:
2187 (void) ztest_truncate(zd
, object
, offset
, blocksize
);
2190 case ZTEST_IO_SETATTR
:
2191 (void) ztest_setattr(zd
, object
);
2194 case ZTEST_IO_REWRITE
:
2195 (void) rw_rdlock(&ztest_name_lock
);
2196 err
= ztest_dsl_prop_set_uint64(zd
->zd_name
,
2197 ZFS_PROP_CHECKSUM
, spa_dedup_checksum(ztest_spa
),
2199 VERIFY(err
== 0 || err
== ENOSPC
);
2200 err
= ztest_dsl_prop_set_uint64(zd
->zd_name
,
2201 ZFS_PROP_COMPRESSION
,
2202 ztest_random_dsl_prop(ZFS_PROP_COMPRESSION
),
2204 VERIFY(err
== 0 || err
== ENOSPC
);
2205 (void) rw_unlock(&ztest_name_lock
);
2207 VERIFY0(dmu_read(zd
->zd_os
, object
, offset
, blocksize
, data
,
2208 DMU_READ_NO_PREFETCH
));
2210 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2214 (void) rw_unlock(&zd
->zd_zilog_lock
);
2216 umem_free(data
, blocksize
);
2220 * Initialize an object description template.
2223 ztest_od_init(ztest_od_t
*od
, uint64_t id
, char *tag
, uint64_t index
,
2224 dmu_object_type_t type
, uint64_t blocksize
, uint64_t gen
)
2226 od
->od_dir
= ZTEST_DIROBJ
;
2229 od
->od_crtype
= type
;
2230 od
->od_crblocksize
= blocksize
? blocksize
: ztest_random_blocksize();
2233 od
->od_type
= DMU_OT_NONE
;
2234 od
->od_blocksize
= 0;
2237 (void) snprintf(od
->od_name
, sizeof (od
->od_name
), "%s(%lld)[%llu]",
2238 tag
, (int64_t)id
, index
);
2242 * Lookup or create the objects for a test using the od template.
2243 * If the objects do not all exist, or if 'remove' is specified,
2244 * remove any existing objects and create new ones. Otherwise,
2245 * use the existing objects.
2248 ztest_object_init(ztest_ds_t
*zd
, ztest_od_t
*od
, size_t size
, boolean_t remove
)
2250 int count
= size
/ sizeof (*od
);
2253 VERIFY(mutex_lock(&zd
->zd_dirobj_lock
) == 0);
2254 if ((ztest_lookup(zd
, od
, count
) != 0 || remove
) &&
2255 (ztest_remove(zd
, od
, count
) != 0 ||
2256 ztest_create(zd
, od
, count
) != 0))
2259 VERIFY(mutex_unlock(&zd
->zd_dirobj_lock
) == 0);
2266 ztest_zil_commit(ztest_ds_t
*zd
, uint64_t id
)
2268 zilog_t
*zilog
= zd
->zd_zilog
;
2270 (void) rw_rdlock(&zd
->zd_zilog_lock
);
2272 zil_commit(zilog
, ztest_random(ZTEST_OBJECTS
));
2275 * Remember the committed values in zd, which is in parent/child
2276 * shared memory. If we die, the next iteration of ztest_run()
2277 * will verify that the log really does contain this record.
2279 mutex_enter(&zilog
->zl_lock
);
2280 ASSERT(zd
->zd_shared
!= NULL
);
2281 ASSERT3U(zd
->zd_shared
->zd_seq
, <=, zilog
->zl_commit_lr_seq
);
2282 zd
->zd_shared
->zd_seq
= zilog
->zl_commit_lr_seq
;
2283 mutex_exit(&zilog
->zl_lock
);
2285 (void) rw_unlock(&zd
->zd_zilog_lock
);
2289 * This function is designed to simulate the operations that occur during a
2290 * mount/unmount operation. We hold the dataset across these operations in an
2291 * attempt to expose any implicit assumptions about ZIL management.
2295 ztest_zil_remount(ztest_ds_t
*zd
, uint64_t id
)
2297 objset_t
*os
= zd
->zd_os
;
2300 * We grab the zd_dirobj_lock to ensure that no other thread is
2301 * updating the zil (i.e. adding in-memory log records) and the
2302 * zd_zilog_lock to block any I/O.
2304 VERIFY0(mutex_lock(&zd
->zd_dirobj_lock
));
2305 (void) rw_wrlock(&zd
->zd_zilog_lock
);
2307 /* zfsvfs_teardown() */
2308 zil_close(zd
->zd_zilog
);
2310 /* zfsvfs_setup() */
2311 VERIFY(zil_open(os
, ztest_get_data
) == zd
->zd_zilog
);
2312 zil_replay(os
, zd
, ztest_replay_vector
);
2314 (void) rw_unlock(&zd
->zd_zilog_lock
);
2315 VERIFY(mutex_unlock(&zd
->zd_dirobj_lock
) == 0);
2319 * Verify that we can't destroy an active pool, create an existing pool,
2320 * or create a pool with a bad vdev spec.
2324 ztest_spa_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
2326 ztest_shared_opts_t
*zo
= &ztest_opts
;
2331 * Attempt to create using a bad file.
2333 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 0, 1);
2334 VERIFY3U(ENOENT
, ==,
2335 spa_create("ztest_bad_file", nvroot
, NULL
, NULL
));
2336 nvlist_free(nvroot
);
2339 * Attempt to create using a bad mirror.
2341 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 2, 1);
2342 VERIFY3U(ENOENT
, ==,
2343 spa_create("ztest_bad_mirror", nvroot
, NULL
, NULL
));
2344 nvlist_free(nvroot
);
2347 * Attempt to create an existing pool. It shouldn't matter
2348 * what's in the nvroot; we should fail with EEXIST.
2350 (void) rw_rdlock(&ztest_name_lock
);
2351 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 0, 1);
2352 VERIFY3U(EEXIST
, ==, spa_create(zo
->zo_pool
, nvroot
, NULL
, NULL
));
2353 nvlist_free(nvroot
);
2354 VERIFY3U(0, ==, spa_open(zo
->zo_pool
, &spa
, FTAG
));
2355 VERIFY3U(EBUSY
, ==, spa_destroy(zo
->zo_pool
));
2356 spa_close(spa
, FTAG
);
2358 (void) rw_unlock(&ztest_name_lock
);
2363 ztest_spa_upgrade(ztest_ds_t
*zd
, uint64_t id
)
2366 uint64_t initial_version
= SPA_VERSION_INITIAL
;
2367 uint64_t version
, newversion
;
2368 nvlist_t
*nvroot
, *props
;
2371 VERIFY0(mutex_lock(&ztest_vdev_lock
));
2372 name
= kmem_asprintf("%s_upgrade", ztest_opts
.zo_pool
);
2375 * Clean up from previous runs.
2377 (void) spa_destroy(name
);
2379 nvroot
= make_vdev_root(NULL
, NULL
, name
, ztest_opts
.zo_vdev_size
, 0,
2380 0, ztest_opts
.zo_raidz
, ztest_opts
.zo_mirrors
, 1);
2383 * If we're configuring a RAIDZ device then make sure that the
2384 * the initial version is capable of supporting that feature.
2386 switch (ztest_opts
.zo_raidz_parity
) {
2389 initial_version
= SPA_VERSION_INITIAL
;
2392 initial_version
= SPA_VERSION_RAIDZ2
;
2395 initial_version
= SPA_VERSION_RAIDZ3
;
2400 * Create a pool with a spa version that can be upgraded. Pick
2401 * a value between initial_version and SPA_VERSION_BEFORE_FEATURES.
2404 version
= ztest_random_spa_version(initial_version
);
2405 } while (version
> SPA_VERSION_BEFORE_FEATURES
);
2407 props
= fnvlist_alloc();
2408 fnvlist_add_uint64(props
,
2409 zpool_prop_to_name(ZPOOL_PROP_VERSION
), version
);
2410 VERIFY0(spa_create(name
, nvroot
, props
, NULL
));
2411 fnvlist_free(nvroot
);
2412 fnvlist_free(props
);
2414 VERIFY0(spa_open(name
, &spa
, FTAG
));
2415 VERIFY3U(spa_version(spa
), ==, version
);
2416 newversion
= ztest_random_spa_version(version
+ 1);
2418 if (ztest_opts
.zo_verbose
>= 4) {
2419 (void) printf("upgrading spa version from %llu to %llu\n",
2420 (u_longlong_t
)version
, (u_longlong_t
)newversion
);
2423 spa_upgrade(spa
, newversion
);
2424 VERIFY3U(spa_version(spa
), >, version
);
2425 VERIFY3U(spa_version(spa
), ==, fnvlist_lookup_uint64(spa
->spa_config
,
2426 zpool_prop_to_name(ZPOOL_PROP_VERSION
)));
2427 spa_close(spa
, FTAG
);
2430 VERIFY0(mutex_unlock(&ztest_vdev_lock
));
2434 vdev_lookup_by_path(vdev_t
*vd
, const char *path
)
2438 if (vd
->vdev_path
!= NULL
&& strcmp(path
, vd
->vdev_path
) == 0)
2441 for (int c
= 0; c
< vd
->vdev_children
; c
++)
2442 if ((mvd
= vdev_lookup_by_path(vd
->vdev_child
[c
], path
)) !=
2450 * Find the first available hole which can be used as a top-level.
2453 find_vdev_hole(spa_t
*spa
)
2455 vdev_t
*rvd
= spa
->spa_root_vdev
;
2458 ASSERT(spa_config_held(spa
, SCL_VDEV
, RW_READER
) == SCL_VDEV
);
2460 for (c
= 0; c
< rvd
->vdev_children
; c
++) {
2461 vdev_t
*cvd
= rvd
->vdev_child
[c
];
2463 if (cvd
->vdev_ishole
)
2470 * Verify that vdev_add() works as expected.
2474 ztest_vdev_add_remove(ztest_ds_t
*zd
, uint64_t id
)
2476 ztest_shared_t
*zs
= ztest_shared
;
2477 spa_t
*spa
= ztest_spa
;
2483 VERIFY(mutex_lock(&ztest_vdev_lock
) == 0);
2484 leaves
= MAX(zs
->zs_mirrors
+ zs
->zs_splits
, 1) * ztest_opts
.zo_raidz
;
2486 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2488 ztest_shared
->zs_vdev_next_leaf
= find_vdev_hole(spa
) * leaves
;
2491 * If we have slogs then remove them 1/4 of the time.
2493 if (spa_has_slogs(spa
) && ztest_random(4) == 0) {
2495 * Grab the guid from the head of the log class rotor.
2497 guid
= spa_log_class(spa
)->mc_rotor
->mg_vd
->vdev_guid
;
2499 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2502 * We have to grab the zs_name_lock as writer to
2503 * prevent a race between removing a slog (dmu_objset_find)
2504 * and destroying a dataset. Removing the slog will
2505 * grab a reference on the dataset which may cause
2506 * dmu_objset_destroy() to fail with EBUSY thus
2507 * leaving the dataset in an inconsistent state.
2509 VERIFY(rw_wrlock(&ztest_name_lock
) == 0);
2510 error
= spa_vdev_remove(spa
, guid
, B_FALSE
);
2511 VERIFY(rw_unlock(&ztest_name_lock
) == 0);
2513 if (error
&& error
!= EEXIST
)
2514 fatal(0, "spa_vdev_remove() = %d", error
);
2516 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2519 * Make 1/4 of the devices be log devices.
2521 nvroot
= make_vdev_root(NULL
, NULL
, NULL
,
2522 ztest_opts
.zo_vdev_size
, 0,
2523 ztest_random(4) == 0, ztest_opts
.zo_raidz
,
2526 error
= spa_vdev_add(spa
, nvroot
);
2527 nvlist_free(nvroot
);
2529 if (error
== ENOSPC
)
2530 ztest_record_enospc("spa_vdev_add");
2531 else if (error
!= 0)
2532 fatal(0, "spa_vdev_add() = %d", error
);
2535 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
2539 * Verify that adding/removing aux devices (l2arc, hot spare) works as expected.
2543 ztest_vdev_aux_add_remove(ztest_ds_t
*zd
, uint64_t id
)
2545 ztest_shared_t
*zs
= ztest_shared
;
2546 spa_t
*spa
= ztest_spa
;
2547 vdev_t
*rvd
= spa
->spa_root_vdev
;
2548 spa_aux_vdev_t
*sav
;
2553 if (ztest_random(2) == 0) {
2554 sav
= &spa
->spa_spares
;
2555 aux
= ZPOOL_CONFIG_SPARES
;
2557 sav
= &spa
->spa_l2cache
;
2558 aux
= ZPOOL_CONFIG_L2CACHE
;
2561 VERIFY(mutex_lock(&ztest_vdev_lock
) == 0);
2563 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2565 if (sav
->sav_count
!= 0 && ztest_random(4) == 0) {
2567 * Pick a random device to remove.
2569 guid
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)]->vdev_guid
;
2572 * Find an unused device we can add.
2574 zs
->zs_vdev_aux
= 0;
2576 char path
[MAXPATHLEN
];
2578 (void) snprintf(path
, sizeof (path
), ztest_aux_template
,
2579 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
, aux
,
2581 for (c
= 0; c
< sav
->sav_count
; c
++)
2582 if (strcmp(sav
->sav_vdevs
[c
]->vdev_path
,
2585 if (c
== sav
->sav_count
&&
2586 vdev_lookup_by_path(rvd
, path
) == NULL
)
2592 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2598 nvlist_t
*nvroot
= make_vdev_root(NULL
, aux
, NULL
,
2599 (ztest_opts
.zo_vdev_size
* 5) / 4, 0, 0, 0, 0, 1);
2600 error
= spa_vdev_add(spa
, nvroot
);
2602 fatal(0, "spa_vdev_add(%p) = %d", nvroot
, error
);
2603 nvlist_free(nvroot
);
2606 * Remove an existing device. Sometimes, dirty its
2607 * vdev state first to make sure we handle removal
2608 * of devices that have pending state changes.
2610 if (ztest_random(2) == 0)
2611 (void) vdev_online(spa
, guid
, 0, NULL
);
2613 error
= spa_vdev_remove(spa
, guid
, B_FALSE
);
2614 if (error
!= 0 && error
!= EBUSY
)
2615 fatal(0, "spa_vdev_remove(%llu) = %d", guid
, error
);
2618 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
2622 * split a pool if it has mirror tlvdevs
2626 ztest_split_pool(ztest_ds_t
*zd
, uint64_t id
)
2628 ztest_shared_t
*zs
= ztest_shared
;
2629 spa_t
*spa
= ztest_spa
;
2630 vdev_t
*rvd
= spa
->spa_root_vdev
;
2631 nvlist_t
*tree
, **child
, *config
, *split
, **schild
;
2632 uint_t c
, children
, schildren
= 0, lastlogid
= 0;
2635 VERIFY(mutex_lock(&ztest_vdev_lock
) == 0);
2637 /* ensure we have a useable config; mirrors of raidz aren't supported */
2638 if (zs
->zs_mirrors
< 3 || ztest_opts
.zo_raidz
> 1) {
2639 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
2643 /* clean up the old pool, if any */
2644 (void) spa_destroy("splitp");
2646 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2648 /* generate a config from the existing config */
2649 mutex_enter(&spa
->spa_props_lock
);
2650 VERIFY(nvlist_lookup_nvlist(spa
->spa_config
, ZPOOL_CONFIG_VDEV_TREE
,
2652 mutex_exit(&spa
->spa_props_lock
);
2654 VERIFY(nvlist_lookup_nvlist_array(tree
, ZPOOL_CONFIG_CHILDREN
, &child
,
2657 schild
= malloc(rvd
->vdev_children
* sizeof (nvlist_t
*));
2658 for (c
= 0; c
< children
; c
++) {
2659 vdev_t
*tvd
= rvd
->vdev_child
[c
];
2663 if (tvd
->vdev_islog
|| tvd
->vdev_ops
== &vdev_hole_ops
) {
2664 VERIFY(nvlist_alloc(&schild
[schildren
], NV_UNIQUE_NAME
,
2666 VERIFY(nvlist_add_string(schild
[schildren
],
2667 ZPOOL_CONFIG_TYPE
, VDEV_TYPE_HOLE
) == 0);
2668 VERIFY(nvlist_add_uint64(schild
[schildren
],
2669 ZPOOL_CONFIG_IS_HOLE
, 1) == 0);
2671 lastlogid
= schildren
;
2676 VERIFY(nvlist_lookup_nvlist_array(child
[c
],
2677 ZPOOL_CONFIG_CHILDREN
, &mchild
, &mchildren
) == 0);
2678 VERIFY(nvlist_dup(mchild
[0], &schild
[schildren
++], 0) == 0);
2681 /* OK, create a config that can be used to split */
2682 VERIFY(nvlist_alloc(&split
, NV_UNIQUE_NAME
, 0) == 0);
2683 VERIFY(nvlist_add_string(split
, ZPOOL_CONFIG_TYPE
,
2684 VDEV_TYPE_ROOT
) == 0);
2685 VERIFY(nvlist_add_nvlist_array(split
, ZPOOL_CONFIG_CHILDREN
, schild
,
2686 lastlogid
!= 0 ? lastlogid
: schildren
) == 0);
2688 VERIFY(nvlist_alloc(&config
, NV_UNIQUE_NAME
, 0) == 0);
2689 VERIFY(nvlist_add_nvlist(config
, ZPOOL_CONFIG_VDEV_TREE
, split
) == 0);
2691 for (c
= 0; c
< schildren
; c
++)
2692 nvlist_free(schild
[c
]);
2696 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2698 (void) rw_wrlock(&ztest_name_lock
);
2699 error
= spa_vdev_split_mirror(spa
, "splitp", config
, NULL
, B_FALSE
);
2700 (void) rw_unlock(&ztest_name_lock
);
2702 nvlist_free(config
);
2705 (void) printf("successful split - results:\n");
2706 mutex_enter(&spa_namespace_lock
);
2707 show_pool_stats(spa
);
2708 show_pool_stats(spa_lookup("splitp"));
2709 mutex_exit(&spa_namespace_lock
);
2713 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
2718 * Verify that we can attach and detach devices.
2722 ztest_vdev_attach_detach(ztest_ds_t
*zd
, uint64_t id
)
2724 ztest_shared_t
*zs
= ztest_shared
;
2725 spa_t
*spa
= ztest_spa
;
2726 spa_aux_vdev_t
*sav
= &spa
->spa_spares
;
2727 vdev_t
*rvd
= spa
->spa_root_vdev
;
2728 vdev_t
*oldvd
, *newvd
, *pvd
;
2732 uint64_t ashift
= ztest_get_ashift();
2733 uint64_t oldguid
, pguid
;
2734 size_t oldsize
, newsize
;
2735 char oldpath
[MAXPATHLEN
], newpath
[MAXPATHLEN
];
2737 int oldvd_has_siblings
= B_FALSE
;
2738 int newvd_is_spare
= B_FALSE
;
2740 int error
, expected_error
;
2742 VERIFY(mutex_lock(&ztest_vdev_lock
) == 0);
2743 leaves
= MAX(zs
->zs_mirrors
, 1) * ztest_opts
.zo_raidz
;
2745 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2748 * Decide whether to do an attach or a replace.
2750 replacing
= ztest_random(2);
2753 * Pick a random top-level vdev.
2755 top
= ztest_random_vdev_top(spa
, B_TRUE
);
2758 * Pick a random leaf within it.
2760 leaf
= ztest_random(leaves
);
2765 oldvd
= rvd
->vdev_child
[top
];
2766 if (zs
->zs_mirrors
>= 1) {
2767 ASSERT(oldvd
->vdev_ops
== &vdev_mirror_ops
);
2768 ASSERT(oldvd
->vdev_children
>= zs
->zs_mirrors
);
2769 oldvd
= oldvd
->vdev_child
[leaf
/ ztest_opts
.zo_raidz
];
2771 if (ztest_opts
.zo_raidz
> 1) {
2772 ASSERT(oldvd
->vdev_ops
== &vdev_raidz_ops
);
2773 ASSERT(oldvd
->vdev_children
== ztest_opts
.zo_raidz
);
2774 oldvd
= oldvd
->vdev_child
[leaf
% ztest_opts
.zo_raidz
];
2778 * If we're already doing an attach or replace, oldvd may be a
2779 * mirror vdev -- in which case, pick a random child.
2781 while (oldvd
->vdev_children
!= 0) {
2782 oldvd_has_siblings
= B_TRUE
;
2783 ASSERT(oldvd
->vdev_children
>= 2);
2784 oldvd
= oldvd
->vdev_child
[ztest_random(oldvd
->vdev_children
)];
2787 oldguid
= oldvd
->vdev_guid
;
2788 oldsize
= vdev_get_min_asize(oldvd
);
2789 oldvd_is_log
= oldvd
->vdev_top
->vdev_islog
;
2790 (void) strcpy(oldpath
, oldvd
->vdev_path
);
2791 pvd
= oldvd
->vdev_parent
;
2792 pguid
= pvd
->vdev_guid
;
2795 * If oldvd has siblings, then half of the time, detach it.
2797 if (oldvd_has_siblings
&& ztest_random(2) == 0) {
2798 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2799 error
= spa_vdev_detach(spa
, oldguid
, pguid
, B_FALSE
);
2800 if (error
!= 0 && error
!= ENODEV
&& error
!= EBUSY
&&
2802 fatal(0, "detach (%s) returned %d", oldpath
, error
);
2803 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
2808 * For the new vdev, choose with equal probability between the two
2809 * standard paths (ending in either 'a' or 'b') or a random hot spare.
2811 if (sav
->sav_count
!= 0 && ztest_random(3) == 0) {
2812 newvd
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)];
2813 newvd_is_spare
= B_TRUE
;
2814 (void) strcpy(newpath
, newvd
->vdev_path
);
2816 (void) snprintf(newpath
, sizeof (newpath
), ztest_dev_template
,
2817 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
2818 top
* leaves
+ leaf
);
2819 if (ztest_random(2) == 0)
2820 newpath
[strlen(newpath
) - 1] = 'b';
2821 newvd
= vdev_lookup_by_path(rvd
, newpath
);
2825 newsize
= vdev_get_min_asize(newvd
);
2828 * Make newsize a little bigger or smaller than oldsize.
2829 * If it's smaller, the attach should fail.
2830 * If it's larger, and we're doing a replace,
2831 * we should get dynamic LUN growth when we're done.
2833 newsize
= 10 * oldsize
/ (9 + ztest_random(3));
2837 * If pvd is not a mirror or root, the attach should fail with ENOTSUP,
2838 * unless it's a replace; in that case any non-replacing parent is OK.
2840 * If newvd is already part of the pool, it should fail with EBUSY.
2842 * If newvd is too small, it should fail with EOVERFLOW.
2844 if (pvd
->vdev_ops
!= &vdev_mirror_ops
&&
2845 pvd
->vdev_ops
!= &vdev_root_ops
&& (!replacing
||
2846 pvd
->vdev_ops
== &vdev_replacing_ops
||
2847 pvd
->vdev_ops
== &vdev_spare_ops
))
2848 expected_error
= ENOTSUP
;
2849 else if (newvd_is_spare
&& (!replacing
|| oldvd_is_log
))
2850 expected_error
= ENOTSUP
;
2851 else if (newvd
== oldvd
)
2852 expected_error
= replacing
? 0 : EBUSY
;
2853 else if (vdev_lookup_by_path(rvd
, newpath
) != NULL
)
2854 expected_error
= EBUSY
;
2855 else if (newsize
< oldsize
)
2856 expected_error
= EOVERFLOW
;
2857 else if (ashift
> oldvd
->vdev_top
->vdev_ashift
)
2858 expected_error
= EDOM
;
2862 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2865 * Build the nvlist describing newpath.
2867 root
= make_vdev_root(newpath
, NULL
, NULL
, newvd
== NULL
? newsize
: 0,
2868 ashift
, 0, 0, 0, 1);
2870 error
= spa_vdev_attach(spa
, oldguid
, root
, replacing
);
2875 * If our parent was the replacing vdev, but the replace completed,
2876 * then instead of failing with ENOTSUP we may either succeed,
2877 * fail with ENODEV, or fail with EOVERFLOW.
2879 if (expected_error
== ENOTSUP
&&
2880 (error
== 0 || error
== ENODEV
|| error
== EOVERFLOW
))
2881 expected_error
= error
;
2884 * If someone grew the LUN, the replacement may be too small.
2886 if (error
== EOVERFLOW
|| error
== EBUSY
)
2887 expected_error
= error
;
2889 /* XXX workaround 6690467 */
2890 if (error
!= expected_error
&& expected_error
!= EBUSY
) {
2891 fatal(0, "attach (%s %llu, %s %llu, %d) "
2892 "returned %d, expected %d",
2893 oldpath
, (longlong_t
)oldsize
, newpath
,
2894 (longlong_t
)newsize
, replacing
, error
, expected_error
);
2897 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
2901 * Callback function which expands the physical size of the vdev.
2904 grow_vdev(vdev_t
*vd
, void *arg
)
2906 spa_t
*spa
= vd
->vdev_spa
;
2907 size_t *newsize
= arg
;
2911 ASSERT(spa_config_held(spa
, SCL_STATE
, RW_READER
) == SCL_STATE
);
2912 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
2914 if ((fd
= open(vd
->vdev_path
, O_RDWR
)) == -1)
2917 fsize
= lseek(fd
, 0, SEEK_END
);
2918 (void) ftruncate(fd
, *newsize
);
2920 if (ztest_opts
.zo_verbose
>= 6) {
2921 (void) printf("%s grew from %lu to %lu bytes\n",
2922 vd
->vdev_path
, (ulong_t
)fsize
, (ulong_t
)*newsize
);
2929 * Callback function which expands a given vdev by calling vdev_online().
2933 online_vdev(vdev_t
*vd
, void *arg
)
2935 spa_t
*spa
= vd
->vdev_spa
;
2936 vdev_t
*tvd
= vd
->vdev_top
;
2937 uint64_t guid
= vd
->vdev_guid
;
2938 uint64_t generation
= spa
->spa_config_generation
+ 1;
2939 vdev_state_t newstate
= VDEV_STATE_UNKNOWN
;
2942 ASSERT(spa_config_held(spa
, SCL_STATE
, RW_READER
) == SCL_STATE
);
2943 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
2945 /* Calling vdev_online will initialize the new metaslabs */
2946 spa_config_exit(spa
, SCL_STATE
, spa
);
2947 error
= vdev_online(spa
, guid
, ZFS_ONLINE_EXPAND
, &newstate
);
2948 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
2951 * If vdev_online returned an error or the underlying vdev_open
2952 * failed then we abort the expand. The only way to know that
2953 * vdev_open fails is by checking the returned newstate.
2955 if (error
|| newstate
!= VDEV_STATE_HEALTHY
) {
2956 if (ztest_opts
.zo_verbose
>= 5) {
2957 (void) printf("Unable to expand vdev, state %llu, "
2958 "error %d\n", (u_longlong_t
)newstate
, error
);
2962 ASSERT3U(newstate
, ==, VDEV_STATE_HEALTHY
);
2965 * Since we dropped the lock we need to ensure that we're
2966 * still talking to the original vdev. It's possible this
2967 * vdev may have been detached/replaced while we were
2968 * trying to online it.
2970 if (generation
!= spa
->spa_config_generation
) {
2971 if (ztest_opts
.zo_verbose
>= 5) {
2972 (void) printf("vdev configuration has changed, "
2973 "guid %llu, state %llu, expected gen %llu, "
2976 (u_longlong_t
)tvd
->vdev_state
,
2977 (u_longlong_t
)generation
,
2978 (u_longlong_t
)spa
->spa_config_generation
);
2986 * Traverse the vdev tree calling the supplied function.
2987 * We continue to walk the tree until we either have walked all
2988 * children or we receive a non-NULL return from the callback.
2989 * If a NULL callback is passed, then we just return back the first
2990 * leaf vdev we encounter.
2993 vdev_walk_tree(vdev_t
*vd
, vdev_t
*(*func
)(vdev_t
*, void *), void *arg
)
2995 if (vd
->vdev_ops
->vdev_op_leaf
) {
2999 return (func(vd
, arg
));
3002 for (uint_t c
= 0; c
< vd
->vdev_children
; c
++) {
3003 vdev_t
*cvd
= vd
->vdev_child
[c
];
3004 if ((cvd
= vdev_walk_tree(cvd
, func
, arg
)) != NULL
)
3011 * Verify that dynamic LUN growth works as expected.
3015 ztest_vdev_LUN_growth(ztest_ds_t
*zd
, uint64_t id
)
3017 spa_t
*spa
= ztest_spa
;
3019 metaslab_class_t
*mc
;
3020 metaslab_group_t
*mg
;
3021 size_t psize
, newsize
;
3023 uint64_t old_class_space
, new_class_space
, old_ms_count
, new_ms_count
;
3025 VERIFY(mutex_lock(&ztest_vdev_lock
) == 0);
3026 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3028 top
= ztest_random_vdev_top(spa
, B_TRUE
);
3030 tvd
= spa
->spa_root_vdev
->vdev_child
[top
];
3033 old_ms_count
= tvd
->vdev_ms_count
;
3034 old_class_space
= metaslab_class_get_space(mc
);
3037 * Determine the size of the first leaf vdev associated with
3038 * our top-level device.
3040 vd
= vdev_walk_tree(tvd
, NULL
, NULL
);
3041 ASSERT3P(vd
, !=, NULL
);
3042 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
3044 psize
= vd
->vdev_psize
;
3047 * We only try to expand the vdev if it's healthy, less than 4x its
3048 * original size, and it has a valid psize.
3050 if (tvd
->vdev_state
!= VDEV_STATE_HEALTHY
||
3051 psize
== 0 || psize
>= 4 * ztest_opts
.zo_vdev_size
) {
3052 spa_config_exit(spa
, SCL_STATE
, spa
);
3053 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
3057 newsize
= psize
+ psize
/ 8;
3058 ASSERT3U(newsize
, >, psize
);
3060 if (ztest_opts
.zo_verbose
>= 6) {
3061 (void) printf("Expanding LUN %s from %lu to %lu\n",
3062 vd
->vdev_path
, (ulong_t
)psize
, (ulong_t
)newsize
);
3066 * Growing the vdev is a two step process:
3067 * 1). expand the physical size (i.e. relabel)
3068 * 2). online the vdev to create the new metaslabs
3070 if (vdev_walk_tree(tvd
, grow_vdev
, &newsize
) != NULL
||
3071 vdev_walk_tree(tvd
, online_vdev
, NULL
) != NULL
||
3072 tvd
->vdev_state
!= VDEV_STATE_HEALTHY
) {
3073 if (ztest_opts
.zo_verbose
>= 5) {
3074 (void) printf("Could not expand LUN because "
3075 "the vdev configuration changed.\n");
3077 spa_config_exit(spa
, SCL_STATE
, spa
);
3078 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
3082 spa_config_exit(spa
, SCL_STATE
, spa
);
3085 * Expanding the LUN will update the config asynchronously,
3086 * thus we must wait for the async thread to complete any
3087 * pending tasks before proceeding.
3091 mutex_enter(&spa
->spa_async_lock
);
3092 done
= (spa
->spa_async_thread
== NULL
&& !spa
->spa_async_tasks
);
3093 mutex_exit(&spa
->spa_async_lock
);
3096 txg_wait_synced(spa_get_dsl(spa
), 0);
3097 (void) poll(NULL
, 0, 100);
3100 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3102 tvd
= spa
->spa_root_vdev
->vdev_child
[top
];
3103 new_ms_count
= tvd
->vdev_ms_count
;
3104 new_class_space
= metaslab_class_get_space(mc
);
3106 if (tvd
->vdev_mg
!= mg
|| mg
->mg_class
!= mc
) {
3107 if (ztest_opts
.zo_verbose
>= 5) {
3108 (void) printf("Could not verify LUN expansion due to "
3109 "intervening vdev offline or remove.\n");
3111 spa_config_exit(spa
, SCL_STATE
, spa
);
3112 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
3117 * Make sure we were able to grow the vdev.
3119 if (new_ms_count
<= old_ms_count
)
3120 fatal(0, "LUN expansion failed: ms_count %llu <= %llu\n",
3121 old_ms_count
, new_ms_count
);
3124 * Make sure we were able to grow the pool.
3126 if (new_class_space
<= old_class_space
)
3127 fatal(0, "LUN expansion failed: class_space %llu <= %llu\n",
3128 old_class_space
, new_class_space
);
3130 if (ztest_opts
.zo_verbose
>= 5) {
3131 char oldnumbuf
[6], newnumbuf
[6];
3133 nicenum(old_class_space
, oldnumbuf
);
3134 nicenum(new_class_space
, newnumbuf
);
3135 (void) printf("%s grew from %s to %s\n",
3136 spa
->spa_name
, oldnumbuf
, newnumbuf
);
3139 spa_config_exit(spa
, SCL_STATE
, spa
);
3140 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
3144 * Verify that dmu_objset_{create,destroy,open,close} work as expected.
3148 ztest_objset_create_cb(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
)
3151 * Create the objects common to all ztest datasets.
3153 VERIFY(zap_create_claim(os
, ZTEST_DIROBJ
,
3154 DMU_OT_ZAP_OTHER
, DMU_OT_NONE
, 0, tx
) == 0);
3158 ztest_dataset_create(char *dsname
)
3160 uint64_t zilset
= ztest_random(100);
3161 int err
= dmu_objset_create(dsname
, DMU_OST_OTHER
, 0,
3162 ztest_objset_create_cb
, NULL
);
3164 if (err
|| zilset
< 80)
3167 if (ztest_opts
.zo_verbose
>= 6)
3168 (void) printf("Setting dataset %s to sync always\n", dsname
);
3169 return (ztest_dsl_prop_set_uint64(dsname
, ZFS_PROP_SYNC
,
3170 ZFS_SYNC_ALWAYS
, B_FALSE
));
3175 ztest_objset_destroy_cb(const char *name
, void *arg
)
3178 dmu_object_info_t doi
;
3182 * Verify that the dataset contains a directory object.
3184 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_TRUE
, FTAG
, &os
));
3185 error
= dmu_object_info(os
, ZTEST_DIROBJ
, &doi
);
3186 if (error
!= ENOENT
) {
3187 /* We could have crashed in the middle of destroying it */
3189 ASSERT3U(doi
.doi_type
, ==, DMU_OT_ZAP_OTHER
);
3190 ASSERT3S(doi
.doi_physical_blocks_512
, >=, 0);
3192 dmu_objset_disown(os
, FTAG
);
3195 * Destroy the dataset.
3197 if (strchr(name
, '@') != NULL
) {
3198 VERIFY0(dsl_destroy_snapshot(name
, B_FALSE
));
3200 VERIFY0(dsl_destroy_head(name
));
3206 ztest_snapshot_create(char *osname
, uint64_t id
)
3208 char snapname
[MAXNAMELEN
];
3211 (void) snprintf(snapname
, sizeof (snapname
), "%llu", (u_longlong_t
)id
);
3213 error
= dmu_objset_snapshot_one(osname
, snapname
);
3214 if (error
== ENOSPC
) {
3215 ztest_record_enospc(FTAG
);
3218 if (error
!= 0 && error
!= EEXIST
) {
3219 fatal(0, "ztest_snapshot_create(%s@%s) = %d", osname
,
3226 ztest_snapshot_destroy(char *osname
, uint64_t id
)
3228 char snapname
[MAXNAMELEN
];
3231 (void) snprintf(snapname
, MAXNAMELEN
, "%s@%llu", osname
,
3234 error
= dsl_destroy_snapshot(snapname
, B_FALSE
);
3235 if (error
!= 0 && error
!= ENOENT
)
3236 fatal(0, "ztest_snapshot_destroy(%s) = %d", snapname
, error
);
3242 ztest_dmu_objset_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
3248 char name
[MAXNAMELEN
];
3251 (void) rw_rdlock(&ztest_name_lock
);
3253 (void) snprintf(name
, MAXNAMELEN
, "%s/temp_%llu",
3254 ztest_opts
.zo_pool
, (u_longlong_t
)id
);
3257 * If this dataset exists from a previous run, process its replay log
3258 * half of the time. If we don't replay it, then dmu_objset_destroy()
3259 * (invoked from ztest_objset_destroy_cb()) should just throw it away.
3261 if (ztest_random(2) == 0 &&
3262 dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os
) == 0) {
3263 ztest_zd_init(&zdtmp
, NULL
, os
);
3264 zil_replay(os
, &zdtmp
, ztest_replay_vector
);
3265 ztest_zd_fini(&zdtmp
);
3266 dmu_objset_disown(os
, FTAG
);
3270 * There may be an old instance of the dataset we're about to
3271 * create lying around from a previous run. If so, destroy it
3272 * and all of its snapshots.
3274 (void) dmu_objset_find(name
, ztest_objset_destroy_cb
, NULL
,
3275 DS_FIND_CHILDREN
| DS_FIND_SNAPSHOTS
);
3278 * Verify that the destroyed dataset is no longer in the namespace.
3280 VERIFY3U(ENOENT
, ==, dmu_objset_own(name
, DMU_OST_OTHER
, B_TRUE
,
3284 * Verify that we can create a new dataset.
3286 error
= ztest_dataset_create(name
);
3288 if (error
== ENOSPC
) {
3289 ztest_record_enospc(FTAG
);
3290 (void) rw_unlock(&ztest_name_lock
);
3293 fatal(0, "dmu_objset_create(%s) = %d", name
, error
);
3296 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os
));
3298 ztest_zd_init(&zdtmp
, NULL
, os
);
3301 * Open the intent log for it.
3303 zilog
= zil_open(os
, ztest_get_data
);
3306 * Put some objects in there, do a little I/O to them,
3307 * and randomly take a couple of snapshots along the way.
3309 iters
= ztest_random(5);
3310 for (int i
= 0; i
< iters
; i
++) {
3311 ztest_dmu_object_alloc_free(&zdtmp
, id
);
3312 if (ztest_random(iters
) == 0)
3313 (void) ztest_snapshot_create(name
, i
);
3317 * Verify that we cannot create an existing dataset.
3319 VERIFY3U(EEXIST
, ==,
3320 dmu_objset_create(name
, DMU_OST_OTHER
, 0, NULL
, NULL
));
3323 * Verify that we can hold an objset that is also owned.
3325 VERIFY3U(0, ==, dmu_objset_hold(name
, FTAG
, &os2
));
3326 dmu_objset_rele(os2
, FTAG
);
3329 * Verify that we cannot own an objset that is already owned.
3332 dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os2
));
3335 dmu_objset_disown(os
, FTAG
);
3336 ztest_zd_fini(&zdtmp
);
3338 (void) rw_unlock(&ztest_name_lock
);
3342 * Verify that dmu_snapshot_{create,destroy,open,close} work as expected.
3345 ztest_dmu_snapshot_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
3347 (void) rw_rdlock(&ztest_name_lock
);
3348 (void) ztest_snapshot_destroy(zd
->zd_name
, id
);
3349 (void) ztest_snapshot_create(zd
->zd_name
, id
);
3350 (void) rw_unlock(&ztest_name_lock
);
3354 * Cleanup non-standard snapshots and clones.
3357 ztest_dsl_dataset_cleanup(char *osname
, uint64_t id
)
3359 char snap1name
[MAXNAMELEN
];
3360 char clone1name
[MAXNAMELEN
];
3361 char snap2name
[MAXNAMELEN
];
3362 char clone2name
[MAXNAMELEN
];
3363 char snap3name
[MAXNAMELEN
];
3366 (void) snprintf(snap1name
, MAXNAMELEN
, "%s@s1_%llu", osname
, id
);
3367 (void) snprintf(clone1name
, MAXNAMELEN
, "%s/c1_%llu", osname
, id
);
3368 (void) snprintf(snap2name
, MAXNAMELEN
, "%s@s2_%llu", clone1name
, id
);
3369 (void) snprintf(clone2name
, MAXNAMELEN
, "%s/c2_%llu", osname
, id
);
3370 (void) snprintf(snap3name
, MAXNAMELEN
, "%s@s3_%llu", clone1name
, id
);
3372 error
= dsl_destroy_head(clone2name
);
3373 if (error
&& error
!= ENOENT
)
3374 fatal(0, "dsl_destroy_head(%s) = %d", clone2name
, error
);
3375 error
= dsl_destroy_snapshot(snap3name
, B_FALSE
);
3376 if (error
&& error
!= ENOENT
)
3377 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap3name
, error
);
3378 error
= dsl_destroy_snapshot(snap2name
, B_FALSE
);
3379 if (error
&& error
!= ENOENT
)
3380 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap2name
, error
);
3381 error
= dsl_destroy_head(clone1name
);
3382 if (error
&& error
!= ENOENT
)
3383 fatal(0, "dsl_destroy_head(%s) = %d", clone1name
, error
);
3384 error
= dsl_destroy_snapshot(snap1name
, B_FALSE
);
3385 if (error
&& error
!= ENOENT
)
3386 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap1name
, error
);
3390 * Verify dsl_dataset_promote handles EBUSY
3393 ztest_dsl_dataset_promote_busy(ztest_ds_t
*zd
, uint64_t id
)
3396 char snap1name
[MAXNAMELEN
];
3397 char clone1name
[MAXNAMELEN
];
3398 char snap2name
[MAXNAMELEN
];
3399 char clone2name
[MAXNAMELEN
];
3400 char snap3name
[MAXNAMELEN
];
3401 char *osname
= zd
->zd_name
;
3404 (void) rw_rdlock(&ztest_name_lock
);
3406 ztest_dsl_dataset_cleanup(osname
, id
);
3408 (void) snprintf(snap1name
, MAXNAMELEN
, "%s@s1_%llu", osname
, id
);
3409 (void) snprintf(clone1name
, MAXNAMELEN
, "%s/c1_%llu", osname
, id
);
3410 (void) snprintf(snap2name
, MAXNAMELEN
, "%s@s2_%llu", clone1name
, id
);
3411 (void) snprintf(clone2name
, MAXNAMELEN
, "%s/c2_%llu", osname
, id
);
3412 (void) snprintf(snap3name
, MAXNAMELEN
, "%s@s3_%llu", clone1name
, id
);
3414 error
= dmu_objset_snapshot_one(osname
, strchr(snap1name
, '@') + 1);
3415 if (error
&& error
!= EEXIST
) {
3416 if (error
== ENOSPC
) {
3417 ztest_record_enospc(FTAG
);
3420 fatal(0, "dmu_take_snapshot(%s) = %d", snap1name
, error
);
3423 error
= dmu_objset_clone(clone1name
, snap1name
);
3425 if (error
== ENOSPC
) {
3426 ztest_record_enospc(FTAG
);
3429 fatal(0, "dmu_objset_create(%s) = %d", clone1name
, error
);
3432 error
= dmu_objset_snapshot_one(clone1name
, strchr(snap2name
, '@') + 1);
3433 if (error
&& error
!= EEXIST
) {
3434 if (error
== ENOSPC
) {
3435 ztest_record_enospc(FTAG
);
3438 fatal(0, "dmu_open_snapshot(%s) = %d", snap2name
, error
);
3441 error
= dmu_objset_snapshot_one(clone1name
, strchr(snap3name
, '@') + 1);
3442 if (error
&& error
!= EEXIST
) {
3443 if (error
== ENOSPC
) {
3444 ztest_record_enospc(FTAG
);
3447 fatal(0, "dmu_open_snapshot(%s) = %d", snap3name
, error
);
3450 error
= dmu_objset_clone(clone2name
, snap3name
);
3452 if (error
== ENOSPC
) {
3453 ztest_record_enospc(FTAG
);
3456 fatal(0, "dmu_objset_create(%s) = %d", clone2name
, error
);
3459 error
= dmu_objset_own(snap2name
, DMU_OST_ANY
, B_TRUE
, FTAG
, &os
);
3461 fatal(0, "dmu_objset_own(%s) = %d", snap2name
, error
);
3462 error
= dsl_dataset_promote(clone2name
, NULL
);
3464 fatal(0, "dsl_dataset_promote(%s), %d, not EBUSY", clone2name
,
3466 dmu_objset_disown(os
, FTAG
);
3469 ztest_dsl_dataset_cleanup(osname
, id
);
3471 (void) rw_unlock(&ztest_name_lock
);
3475 * Verify that dmu_object_{alloc,free} work as expected.
3478 ztest_dmu_object_alloc_free(ztest_ds_t
*zd
, uint64_t id
)
3481 int batchsize
= sizeof (od
) / sizeof (od
[0]);
3483 for (int b
= 0; b
< batchsize
; b
++)
3484 ztest_od_init(&od
[b
], id
, FTAG
, b
, DMU_OT_UINT64_OTHER
, 0, 0);
3487 * Destroy the previous batch of objects, create a new batch,
3488 * and do some I/O on the new objects.
3490 if (ztest_object_init(zd
, od
, sizeof (od
), B_TRUE
) != 0)
3493 while (ztest_random(4 * batchsize
) != 0)
3494 ztest_io(zd
, od
[ztest_random(batchsize
)].od_object
,
3495 ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
3499 * Verify that dmu_{read,write} work as expected.
3502 ztest_dmu_read_write(ztest_ds_t
*zd
, uint64_t id
)
3504 objset_t
*os
= zd
->zd_os
;
3507 int i
, freeit
, error
;
3509 bufwad_t
*packbuf
, *bigbuf
, *pack
, *bigH
, *bigT
;
3510 uint64_t packobj
, packoff
, packsize
, bigobj
, bigoff
, bigsize
;
3511 uint64_t chunksize
= (1000 + ztest_random(1000)) * sizeof (uint64_t);
3512 uint64_t regions
= 997;
3513 uint64_t stride
= 123456789ULL;
3514 uint64_t width
= 40;
3515 int free_percent
= 5;
3518 * This test uses two objects, packobj and bigobj, that are always
3519 * updated together (i.e. in the same tx) so that their contents are
3520 * in sync and can be compared. Their contents relate to each other
3521 * in a simple way: packobj is a dense array of 'bufwad' structures,
3522 * while bigobj is a sparse array of the same bufwads. Specifically,
3523 * for any index n, there are three bufwads that should be identical:
3525 * packobj, at offset n * sizeof (bufwad_t)
3526 * bigobj, at the head of the nth chunk
3527 * bigobj, at the tail of the nth chunk
3529 * The chunk size is arbitrary. It doesn't have to be a power of two,
3530 * and it doesn't have any relation to the object blocksize.
3531 * The only requirement is that it can hold at least two bufwads.
3533 * Normally, we write the bufwad to each of these locations.
3534 * However, free_percent of the time we instead write zeroes to
3535 * packobj and perform a dmu_free_range() on bigobj. By comparing
3536 * bigobj to packobj, we can verify that the DMU is correctly
3537 * tracking which parts of an object are allocated and free,
3538 * and that the contents of the allocated blocks are correct.
3542 * Read the directory info. If it's the first time, set things up.
3544 ztest_od_init(&od
[0], id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, chunksize
);
3545 ztest_od_init(&od
[1], id
, FTAG
, 1, DMU_OT_UINT64_OTHER
, 0, chunksize
);
3547 if (ztest_object_init(zd
, od
, sizeof (od
), B_FALSE
) != 0)
3550 bigobj
= od
[0].od_object
;
3551 packobj
= od
[1].od_object
;
3552 chunksize
= od
[0].od_gen
;
3553 ASSERT(chunksize
== od
[1].od_gen
);
3556 * Prefetch a random chunk of the big object.
3557 * Our aim here is to get some async reads in flight
3558 * for blocks that we may free below; the DMU should
3559 * handle this race correctly.
3561 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
3562 s
= 1 + ztest_random(2 * width
- 1);
3563 dmu_prefetch(os
, bigobj
, n
* chunksize
, s
* chunksize
);
3566 * Pick a random index and compute the offsets into packobj and bigobj.
3568 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
3569 s
= 1 + ztest_random(width
- 1);
3571 packoff
= n
* sizeof (bufwad_t
);
3572 packsize
= s
* sizeof (bufwad_t
);
3574 bigoff
= n
* chunksize
;
3575 bigsize
= s
* chunksize
;
3577 packbuf
= umem_alloc(packsize
, UMEM_NOFAIL
);
3578 bigbuf
= umem_alloc(bigsize
, UMEM_NOFAIL
);
3581 * free_percent of the time, free a range of bigobj rather than
3584 freeit
= (ztest_random(100) < free_percent
);
3587 * Read the current contents of our objects.
3589 error
= dmu_read(os
, packobj
, packoff
, packsize
, packbuf
,
3592 error
= dmu_read(os
, bigobj
, bigoff
, bigsize
, bigbuf
,
3597 * Get a tx for the mods to both packobj and bigobj.
3599 tx
= dmu_tx_create(os
);
3601 dmu_tx_hold_write(tx
, packobj
, packoff
, packsize
);
3604 dmu_tx_hold_free(tx
, bigobj
, bigoff
, bigsize
);
3606 dmu_tx_hold_write(tx
, bigobj
, bigoff
, bigsize
);
3608 /* This accounts for setting the checksum/compression. */
3609 dmu_tx_hold_bonus(tx
, bigobj
);
3611 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
3613 umem_free(packbuf
, packsize
);
3614 umem_free(bigbuf
, bigsize
);
3618 dmu_object_set_checksum(os
, bigobj
,
3619 (enum zio_checksum
)ztest_random_dsl_prop(ZFS_PROP_CHECKSUM
), tx
);
3621 dmu_object_set_compress(os
, bigobj
,
3622 (enum zio_compress
)ztest_random_dsl_prop(ZFS_PROP_COMPRESSION
), tx
);
3625 * For each index from n to n + s, verify that the existing bufwad
3626 * in packobj matches the bufwads at the head and tail of the
3627 * corresponding chunk in bigobj. Then update all three bufwads
3628 * with the new values we want to write out.
3630 for (i
= 0; i
< s
; i
++) {
3632 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
3634 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* chunksize
);
3636 bigT
= (bufwad_t
*)((char *)bigH
+ chunksize
) - 1;
3638 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
3639 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
3641 if (pack
->bw_txg
> txg
)
3642 fatal(0, "future leak: got %llx, open txg is %llx",
3645 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
3646 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
3647 pack
->bw_index
, n
, i
);
3649 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
3650 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
3652 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
3653 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
3656 bzero(pack
, sizeof (bufwad_t
));
3658 pack
->bw_index
= n
+ i
;
3660 pack
->bw_data
= 1 + ztest_random(-2ULL);
3667 * We've verified all the old bufwads, and made new ones.
3668 * Now write them out.
3670 dmu_write(os
, packobj
, packoff
, packsize
, packbuf
, tx
);
3673 if (ztest_opts
.zo_verbose
>= 7) {
3674 (void) printf("freeing offset %llx size %llx"
3676 (u_longlong_t
)bigoff
,
3677 (u_longlong_t
)bigsize
,
3680 VERIFY(0 == dmu_free_range(os
, bigobj
, bigoff
, bigsize
, tx
));
3682 if (ztest_opts
.zo_verbose
>= 7) {
3683 (void) printf("writing offset %llx size %llx"
3685 (u_longlong_t
)bigoff
,
3686 (u_longlong_t
)bigsize
,
3689 dmu_write(os
, bigobj
, bigoff
, bigsize
, bigbuf
, tx
);
3695 * Sanity check the stuff we just wrote.
3698 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
3699 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
3701 VERIFY(0 == dmu_read(os
, packobj
, packoff
,
3702 packsize
, packcheck
, DMU_READ_PREFETCH
));
3703 VERIFY(0 == dmu_read(os
, bigobj
, bigoff
,
3704 bigsize
, bigcheck
, DMU_READ_PREFETCH
));
3706 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
3707 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
3709 umem_free(packcheck
, packsize
);
3710 umem_free(bigcheck
, bigsize
);
3713 umem_free(packbuf
, packsize
);
3714 umem_free(bigbuf
, bigsize
);
3718 compare_and_update_pbbufs(uint64_t s
, bufwad_t
*packbuf
, bufwad_t
*bigbuf
,
3719 uint64_t bigsize
, uint64_t n
, uint64_t chunksize
, uint64_t txg
)
3727 * For each index from n to n + s, verify that the existing bufwad
3728 * in packobj matches the bufwads at the head and tail of the
3729 * corresponding chunk in bigobj. Then update all three bufwads
3730 * with the new values we want to write out.
3732 for (i
= 0; i
< s
; i
++) {
3734 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
3736 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* chunksize
);
3738 bigT
= (bufwad_t
*)((char *)bigH
+ chunksize
) - 1;
3740 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
3741 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
3743 if (pack
->bw_txg
> txg
)
3744 fatal(0, "future leak: got %llx, open txg is %llx",
3747 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
3748 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
3749 pack
->bw_index
, n
, i
);
3751 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
3752 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
3754 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
3755 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
3757 pack
->bw_index
= n
+ i
;
3759 pack
->bw_data
= 1 + ztest_random(-2ULL);
3767 ztest_dmu_read_write_zcopy(ztest_ds_t
*zd
, uint64_t id
)
3769 objset_t
*os
= zd
->zd_os
;
3775 bufwad_t
*packbuf
, *bigbuf
;
3776 uint64_t packobj
, packoff
, packsize
, bigobj
, bigoff
, bigsize
;
3777 uint64_t blocksize
= ztest_random_blocksize();
3778 uint64_t chunksize
= blocksize
;
3779 uint64_t regions
= 997;
3780 uint64_t stride
= 123456789ULL;
3782 dmu_buf_t
*bonus_db
;
3783 arc_buf_t
**bigbuf_arcbufs
;
3784 dmu_object_info_t doi
;
3787 * This test uses two objects, packobj and bigobj, that are always
3788 * updated together (i.e. in the same tx) so that their contents are
3789 * in sync and can be compared. Their contents relate to each other
3790 * in a simple way: packobj is a dense array of 'bufwad' structures,
3791 * while bigobj is a sparse array of the same bufwads. Specifically,
3792 * for any index n, there are three bufwads that should be identical:
3794 * packobj, at offset n * sizeof (bufwad_t)
3795 * bigobj, at the head of the nth chunk
3796 * bigobj, at the tail of the nth chunk
3798 * The chunk size is set equal to bigobj block size so that
3799 * dmu_assign_arcbuf() can be tested for object updates.
3803 * Read the directory info. If it's the first time, set things up.
3805 ztest_od_init(&od
[0], id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0);
3806 ztest_od_init(&od
[1], id
, FTAG
, 1, DMU_OT_UINT64_OTHER
, 0, chunksize
);
3808 if (ztest_object_init(zd
, od
, sizeof (od
), B_FALSE
) != 0)
3811 bigobj
= od
[0].od_object
;
3812 packobj
= od
[1].od_object
;
3813 blocksize
= od
[0].od_blocksize
;
3814 chunksize
= blocksize
;
3815 ASSERT(chunksize
== od
[1].od_gen
);
3817 VERIFY(dmu_object_info(os
, bigobj
, &doi
) == 0);
3818 VERIFY(ISP2(doi
.doi_data_block_size
));
3819 VERIFY(chunksize
== doi
.doi_data_block_size
);
3820 VERIFY(chunksize
>= 2 * sizeof (bufwad_t
));
3823 * Pick a random index and compute the offsets into packobj and bigobj.
3825 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
3826 s
= 1 + ztest_random(width
- 1);
3828 packoff
= n
* sizeof (bufwad_t
);
3829 packsize
= s
* sizeof (bufwad_t
);
3831 bigoff
= n
* chunksize
;
3832 bigsize
= s
* chunksize
;
3834 packbuf
= umem_zalloc(packsize
, UMEM_NOFAIL
);
3835 bigbuf
= umem_zalloc(bigsize
, UMEM_NOFAIL
);
3837 VERIFY3U(0, ==, dmu_bonus_hold(os
, bigobj
, FTAG
, &bonus_db
));
3839 bigbuf_arcbufs
= umem_zalloc(2 * s
* sizeof (arc_buf_t
*), UMEM_NOFAIL
);
3842 * Iteration 0 test zcopy for DB_UNCACHED dbufs.
3843 * Iteration 1 test zcopy to already referenced dbufs.
3844 * Iteration 2 test zcopy to dirty dbuf in the same txg.
3845 * Iteration 3 test zcopy to dbuf dirty in previous txg.
3846 * Iteration 4 test zcopy when dbuf is no longer dirty.
3847 * Iteration 5 test zcopy when it can't be done.
3848 * Iteration 6 one more zcopy write.
3850 for (i
= 0; i
< 7; i
++) {
3855 * In iteration 5 (i == 5) use arcbufs
3856 * that don't match bigobj blksz to test
3857 * dmu_assign_arcbuf() when it can't directly
3858 * assign an arcbuf to a dbuf.
3860 for (j
= 0; j
< s
; j
++) {
3863 dmu_request_arcbuf(bonus_db
, chunksize
);
3865 bigbuf_arcbufs
[2 * j
] =
3866 dmu_request_arcbuf(bonus_db
, chunksize
/ 2);
3867 bigbuf_arcbufs
[2 * j
+ 1] =
3868 dmu_request_arcbuf(bonus_db
, chunksize
/ 2);
3873 * Get a tx for the mods to both packobj and bigobj.
3875 tx
= dmu_tx_create(os
);
3877 dmu_tx_hold_write(tx
, packobj
, packoff
, packsize
);
3878 dmu_tx_hold_write(tx
, bigobj
, bigoff
, bigsize
);
3880 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
3882 umem_free(packbuf
, packsize
);
3883 umem_free(bigbuf
, bigsize
);
3884 for (j
= 0; j
< s
; j
++) {
3886 dmu_return_arcbuf(bigbuf_arcbufs
[j
]);
3889 bigbuf_arcbufs
[2 * j
]);
3891 bigbuf_arcbufs
[2 * j
+ 1]);
3894 umem_free(bigbuf_arcbufs
, 2 * s
* sizeof (arc_buf_t
*));
3895 dmu_buf_rele(bonus_db
, FTAG
);
3900 * 50% of the time don't read objects in the 1st iteration to
3901 * test dmu_assign_arcbuf() for the case when there're no
3902 * existing dbufs for the specified offsets.
3904 if (i
!= 0 || ztest_random(2) != 0) {
3905 error
= dmu_read(os
, packobj
, packoff
,
3906 packsize
, packbuf
, DMU_READ_PREFETCH
);
3908 error
= dmu_read(os
, bigobj
, bigoff
, bigsize
,
3909 bigbuf
, DMU_READ_PREFETCH
);
3912 compare_and_update_pbbufs(s
, packbuf
, bigbuf
, bigsize
,
3916 * We've verified all the old bufwads, and made new ones.
3917 * Now write them out.
3919 dmu_write(os
, packobj
, packoff
, packsize
, packbuf
, tx
);
3920 if (ztest_opts
.zo_verbose
>= 7) {
3921 (void) printf("writing offset %llx size %llx"
3923 (u_longlong_t
)bigoff
,
3924 (u_longlong_t
)bigsize
,
3927 for (off
= bigoff
, j
= 0; j
< s
; j
++, off
+= chunksize
) {
3930 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
),
3931 bigbuf_arcbufs
[j
]->b_data
, chunksize
);
3933 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
),
3934 bigbuf_arcbufs
[2 * j
]->b_data
,
3936 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
) +
3938 bigbuf_arcbufs
[2 * j
+ 1]->b_data
,
3943 VERIFY(dmu_buf_hold(os
, bigobj
, off
,
3944 FTAG
, &dbt
, DMU_READ_NO_PREFETCH
) == 0);
3947 dmu_assign_arcbuf(bonus_db
, off
,
3948 bigbuf_arcbufs
[j
], tx
);
3950 dmu_assign_arcbuf(bonus_db
, off
,
3951 bigbuf_arcbufs
[2 * j
], tx
);
3952 dmu_assign_arcbuf(bonus_db
,
3953 off
+ chunksize
/ 2,
3954 bigbuf_arcbufs
[2 * j
+ 1], tx
);
3957 dmu_buf_rele(dbt
, FTAG
);
3963 * Sanity check the stuff we just wrote.
3966 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
3967 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
3969 VERIFY(0 == dmu_read(os
, packobj
, packoff
,
3970 packsize
, packcheck
, DMU_READ_PREFETCH
));
3971 VERIFY(0 == dmu_read(os
, bigobj
, bigoff
,
3972 bigsize
, bigcheck
, DMU_READ_PREFETCH
));
3974 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
3975 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
3977 umem_free(packcheck
, packsize
);
3978 umem_free(bigcheck
, bigsize
);
3981 txg_wait_open(dmu_objset_pool(os
), 0);
3982 } else if (i
== 3) {
3983 txg_wait_synced(dmu_objset_pool(os
), 0);
3987 dmu_buf_rele(bonus_db
, FTAG
);
3988 umem_free(packbuf
, packsize
);
3989 umem_free(bigbuf
, bigsize
);
3990 umem_free(bigbuf_arcbufs
, 2 * s
* sizeof (arc_buf_t
*));
3995 ztest_dmu_write_parallel(ztest_ds_t
*zd
, uint64_t id
)
3998 uint64_t offset
= (1ULL << (ztest_random(20) + 43)) +
3999 (ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
4002 * Have multiple threads write to large offsets in an object
4003 * to verify that parallel writes to an object -- even to the
4004 * same blocks within the object -- doesn't cause any trouble.
4006 ztest_od_init(&od
[0], ID_PARALLEL
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0);
4008 if (ztest_object_init(zd
, od
, sizeof (od
), B_FALSE
) != 0)
4011 while (ztest_random(10) != 0)
4012 ztest_io(zd
, od
[0].od_object
, offset
);
4016 ztest_dmu_prealloc(ztest_ds_t
*zd
, uint64_t id
)
4019 uint64_t offset
= (1ULL << (ztest_random(4) + SPA_MAXBLOCKSHIFT
)) +
4020 (ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
4021 uint64_t count
= ztest_random(20) + 1;
4022 uint64_t blocksize
= ztest_random_blocksize();
4025 ztest_od_init(&od
[0], id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0);
4027 if (ztest_object_init(zd
, od
, sizeof (od
), !ztest_random(2)) != 0)
4030 if (ztest_truncate(zd
, od
[0].od_object
, offset
, count
* blocksize
) != 0)
4033 ztest_prealloc(zd
, od
[0].od_object
, offset
, count
* blocksize
);
4035 data
= umem_zalloc(blocksize
, UMEM_NOFAIL
);
4037 while (ztest_random(count
) != 0) {
4038 uint64_t randoff
= offset
+ (ztest_random(count
) * blocksize
);
4039 if (ztest_write(zd
, od
[0].od_object
, randoff
, blocksize
,
4042 while (ztest_random(4) != 0)
4043 ztest_io(zd
, od
[0].od_object
, randoff
);
4046 umem_free(data
, blocksize
);
4050 * Verify that zap_{create,destroy,add,remove,update} work as expected.
4052 #define ZTEST_ZAP_MIN_INTS 1
4053 #define ZTEST_ZAP_MAX_INTS 4
4054 #define ZTEST_ZAP_MAX_PROPS 1000
4057 ztest_zap(ztest_ds_t
*zd
, uint64_t id
)
4059 objset_t
*os
= zd
->zd_os
;
4062 uint64_t txg
, last_txg
;
4063 uint64_t value
[ZTEST_ZAP_MAX_INTS
];
4064 uint64_t zl_ints
, zl_intsize
, prop
;
4067 char propname
[100], txgname
[100];
4069 char *hc
[2] = { "s.acl.h", ".s.open.h.hyLZlg" };
4071 ztest_od_init(&od
[0], id
, FTAG
, 0, DMU_OT_ZAP_OTHER
, 0, 0);
4073 if (ztest_object_init(zd
, od
, sizeof (od
), !ztest_random(2)) != 0)
4076 object
= od
[0].od_object
;
4079 * Generate a known hash collision, and verify that
4080 * we can lookup and remove both entries.
4082 tx
= dmu_tx_create(os
);
4083 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4084 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4087 for (i
= 0; i
< 2; i
++) {
4089 VERIFY3U(0, ==, zap_add(os
, object
, hc
[i
], sizeof (uint64_t),
4092 for (i
= 0; i
< 2; i
++) {
4093 VERIFY3U(EEXIST
, ==, zap_add(os
, object
, hc
[i
],
4094 sizeof (uint64_t), 1, &value
[i
], tx
));
4096 zap_length(os
, object
, hc
[i
], &zl_intsize
, &zl_ints
));
4097 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4098 ASSERT3U(zl_ints
, ==, 1);
4100 for (i
= 0; i
< 2; i
++) {
4101 VERIFY3U(0, ==, zap_remove(os
, object
, hc
[i
], tx
));
4106 * Generate a buch of random entries.
4108 ints
= MAX(ZTEST_ZAP_MIN_INTS
, object
% ZTEST_ZAP_MAX_INTS
);
4110 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
4111 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
4112 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
4113 bzero(value
, sizeof (value
));
4117 * If these zap entries already exist, validate their contents.
4119 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
4121 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4122 ASSERT3U(zl_ints
, ==, 1);
4124 VERIFY(zap_lookup(os
, object
, txgname
, zl_intsize
,
4125 zl_ints
, &last_txg
) == 0);
4127 VERIFY(zap_length(os
, object
, propname
, &zl_intsize
,
4130 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4131 ASSERT3U(zl_ints
, ==, ints
);
4133 VERIFY(zap_lookup(os
, object
, propname
, zl_intsize
,
4134 zl_ints
, value
) == 0);
4136 for (i
= 0; i
< ints
; i
++) {
4137 ASSERT3U(value
[i
], ==, last_txg
+ object
+ i
);
4140 ASSERT3U(error
, ==, ENOENT
);
4144 * Atomically update two entries in our zap object.
4145 * The first is named txg_%llu, and contains the txg
4146 * in which the property was last updated. The second
4147 * is named prop_%llu, and the nth element of its value
4148 * should be txg + object + n.
4150 tx
= dmu_tx_create(os
);
4151 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4152 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4157 fatal(0, "zap future leak: old %llu new %llu", last_txg
, txg
);
4159 for (i
= 0; i
< ints
; i
++)
4160 value
[i
] = txg
+ object
+ i
;
4162 VERIFY3U(0, ==, zap_update(os
, object
, txgname
, sizeof (uint64_t),
4164 VERIFY3U(0, ==, zap_update(os
, object
, propname
, sizeof (uint64_t),
4170 * Remove a random pair of entries.
4172 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
4173 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
4174 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
4176 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
4178 if (error
== ENOENT
)
4183 tx
= dmu_tx_create(os
);
4184 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4185 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4188 VERIFY3U(0, ==, zap_remove(os
, object
, txgname
, tx
));
4189 VERIFY3U(0, ==, zap_remove(os
, object
, propname
, tx
));
4194 * Testcase to test the upgrading of a microzap to fatzap.
4197 ztest_fzap(ztest_ds_t
*zd
, uint64_t id
)
4199 objset_t
*os
= zd
->zd_os
;
4201 uint64_t object
, txg
;
4203 ztest_od_init(&od
[0], id
, FTAG
, 0, DMU_OT_ZAP_OTHER
, 0, 0);
4205 if (ztest_object_init(zd
, od
, sizeof (od
), !ztest_random(2)) != 0)
4208 object
= od
[0].od_object
;
4211 * Add entries to this ZAP and make sure it spills over
4212 * and gets upgraded to a fatzap. Also, since we are adding
4213 * 2050 entries we should see ptrtbl growth and leaf-block split.
4215 for (int i
= 0; i
< 2050; i
++) {
4216 char name
[MAXNAMELEN
];
4221 (void) snprintf(name
, sizeof (name
), "fzap-%llu-%llu",
4224 tx
= dmu_tx_create(os
);
4225 dmu_tx_hold_zap(tx
, object
, B_TRUE
, name
);
4226 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4229 error
= zap_add(os
, object
, name
, sizeof (uint64_t), 1,
4231 ASSERT(error
== 0 || error
== EEXIST
);
4238 ztest_zap_parallel(ztest_ds_t
*zd
, uint64_t id
)
4240 objset_t
*os
= zd
->zd_os
;
4242 uint64_t txg
, object
, count
, wsize
, wc
, zl_wsize
, zl_wc
;
4244 int i
, namelen
, error
;
4245 int micro
= ztest_random(2);
4246 char name
[20], string_value
[20];
4249 ztest_od_init(&od
[0], ID_PARALLEL
, FTAG
, micro
, DMU_OT_ZAP_OTHER
, 0, 0);
4251 if (ztest_object_init(zd
, od
, sizeof (od
), B_FALSE
) != 0)
4254 object
= od
[0].od_object
;
4257 * Generate a random name of the form 'xxx.....' where each
4258 * x is a random printable character and the dots are dots.
4259 * There are 94 such characters, and the name length goes from
4260 * 6 to 20, so there are 94^3 * 15 = 12,458,760 possible names.
4262 namelen
= ztest_random(sizeof (name
) - 5) + 5 + 1;
4264 for (i
= 0; i
< 3; i
++)
4265 name
[i
] = '!' + ztest_random('~' - '!' + 1);
4266 for (; i
< namelen
- 1; i
++)
4270 if ((namelen
& 1) || micro
) {
4271 wsize
= sizeof (txg
);
4277 data
= string_value
;
4281 VERIFY0(zap_count(os
, object
, &count
));
4282 ASSERT(count
!= -1ULL);
4285 * Select an operation: length, lookup, add, update, remove.
4287 i
= ztest_random(5);
4290 tx
= dmu_tx_create(os
);
4291 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4292 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4295 bcopy(name
, string_value
, namelen
);
4299 bzero(string_value
, namelen
);
4305 error
= zap_length(os
, object
, name
, &zl_wsize
, &zl_wc
);
4307 ASSERT3U(wsize
, ==, zl_wsize
);
4308 ASSERT3U(wc
, ==, zl_wc
);
4310 ASSERT3U(error
, ==, ENOENT
);
4315 error
= zap_lookup(os
, object
, name
, wsize
, wc
, data
);
4317 if (data
== string_value
&&
4318 bcmp(name
, data
, namelen
) != 0)
4319 fatal(0, "name '%s' != val '%s' len %d",
4320 name
, data
, namelen
);
4322 ASSERT3U(error
, ==, ENOENT
);
4327 error
= zap_add(os
, object
, name
, wsize
, wc
, data
, tx
);
4328 ASSERT(error
== 0 || error
== EEXIST
);
4332 VERIFY(zap_update(os
, object
, name
, wsize
, wc
, data
, tx
) == 0);
4336 error
= zap_remove(os
, object
, name
, tx
);
4337 ASSERT(error
== 0 || error
== ENOENT
);
4346 * Commit callback data.
4348 typedef struct ztest_cb_data
{
4349 list_node_t zcd_node
;
4351 int zcd_expected_err
;
4352 boolean_t zcd_added
;
4353 boolean_t zcd_called
;
4357 /* This is the actual commit callback function */
4359 ztest_commit_callback(void *arg
, int error
)
4361 ztest_cb_data_t
*data
= arg
;
4362 uint64_t synced_txg
;
4364 VERIFY(data
!= NULL
);
4365 VERIFY3S(data
->zcd_expected_err
, ==, error
);
4366 VERIFY(!data
->zcd_called
);
4368 synced_txg
= spa_last_synced_txg(data
->zcd_spa
);
4369 if (data
->zcd_txg
> synced_txg
)
4370 fatal(0, "commit callback of txg %" PRIu64
" called prematurely"
4371 ", last synced txg = %" PRIu64
"\n", data
->zcd_txg
,
4374 data
->zcd_called
= B_TRUE
;
4376 if (error
== ECANCELED
) {
4377 ASSERT0(data
->zcd_txg
);
4378 ASSERT(!data
->zcd_added
);
4381 * The private callback data should be destroyed here, but
4382 * since we are going to check the zcd_called field after
4383 * dmu_tx_abort(), we will destroy it there.
4388 /* Was this callback added to the global callback list? */
4389 if (!data
->zcd_added
)
4392 ASSERT3U(data
->zcd_txg
, !=, 0);
4394 /* Remove our callback from the list */
4395 (void) mutex_lock(&zcl
.zcl_callbacks_lock
);
4396 list_remove(&zcl
.zcl_callbacks
, data
);
4397 (void) mutex_unlock(&zcl
.zcl_callbacks_lock
);
4400 umem_free(data
, sizeof (ztest_cb_data_t
));
4403 /* Allocate and initialize callback data structure */
4404 static ztest_cb_data_t
*
4405 ztest_create_cb_data(objset_t
*os
, uint64_t txg
)
4407 ztest_cb_data_t
*cb_data
;
4409 cb_data
= umem_zalloc(sizeof (ztest_cb_data_t
), UMEM_NOFAIL
);
4411 cb_data
->zcd_txg
= txg
;
4412 cb_data
->zcd_spa
= dmu_objset_spa(os
);
4418 * If a number of txgs equal to this threshold have been created after a commit
4419 * callback has been registered but not called, then we assume there is an
4420 * implementation bug.
4422 #define ZTEST_COMMIT_CALLBACK_THRESH (TXG_CONCURRENT_STATES + 2)
4425 * Commit callback test.
4428 ztest_dmu_commit_callbacks(ztest_ds_t
*zd
, uint64_t id
)
4430 objset_t
*os
= zd
->zd_os
;
4433 ztest_cb_data_t
*cb_data
[3], *tmp_cb
;
4434 uint64_t old_txg
, txg
;
4437 ztest_od_init(&od
[0], id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0);
4439 if (ztest_object_init(zd
, od
, sizeof (od
), B_FALSE
) != 0)
4442 tx
= dmu_tx_create(os
);
4444 cb_data
[0] = ztest_create_cb_data(os
, 0);
4445 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[0]);
4447 dmu_tx_hold_write(tx
, od
[0].od_object
, 0, sizeof (uint64_t));
4449 /* Every once in a while, abort the transaction on purpose */
4450 if (ztest_random(100) == 0)
4454 error
= dmu_tx_assign(tx
, TXG_NOWAIT
);
4456 txg
= error
? 0 : dmu_tx_get_txg(tx
);
4458 cb_data
[0]->zcd_txg
= txg
;
4459 cb_data
[1] = ztest_create_cb_data(os
, txg
);
4460 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[1]);
4464 * It's not a strict requirement to call the registered
4465 * callbacks from inside dmu_tx_abort(), but that's what
4466 * it's supposed to happen in the current implementation
4467 * so we will check for that.
4469 for (i
= 0; i
< 2; i
++) {
4470 cb_data
[i
]->zcd_expected_err
= ECANCELED
;
4471 VERIFY(!cb_data
[i
]->zcd_called
);
4476 for (i
= 0; i
< 2; i
++) {
4477 VERIFY(cb_data
[i
]->zcd_called
);
4478 umem_free(cb_data
[i
], sizeof (ztest_cb_data_t
));
4484 cb_data
[2] = ztest_create_cb_data(os
, txg
);
4485 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[2]);
4488 * Read existing data to make sure there isn't a future leak.
4490 VERIFY(0 == dmu_read(os
, od
[0].od_object
, 0, sizeof (uint64_t),
4491 &old_txg
, DMU_READ_PREFETCH
));
4494 fatal(0, "future leak: got %" PRIu64
", open txg is %" PRIu64
,
4497 dmu_write(os
, od
[0].od_object
, 0, sizeof (uint64_t), &txg
, tx
);
4499 (void) mutex_lock(&zcl
.zcl_callbacks_lock
);
4502 * Since commit callbacks don't have any ordering requirement and since
4503 * it is theoretically possible for a commit callback to be called
4504 * after an arbitrary amount of time has elapsed since its txg has been
4505 * synced, it is difficult to reliably determine whether a commit
4506 * callback hasn't been called due to high load or due to a flawed
4509 * In practice, we will assume that if after a certain number of txgs a
4510 * commit callback hasn't been called, then most likely there's an
4511 * implementation bug..
4513 tmp_cb
= list_head(&zcl
.zcl_callbacks
);
4514 if (tmp_cb
!= NULL
&&
4515 (txg
- ZTEST_COMMIT_CALLBACK_THRESH
) > tmp_cb
->zcd_txg
) {
4516 fatal(0, "Commit callback threshold exceeded, oldest txg: %"
4517 PRIu64
", open txg: %" PRIu64
"\n", tmp_cb
->zcd_txg
, txg
);
4521 * Let's find the place to insert our callbacks.
4523 * Even though the list is ordered by txg, it is possible for the
4524 * insertion point to not be the end because our txg may already be
4525 * quiescing at this point and other callbacks in the open txg
4526 * (from other objsets) may have sneaked in.
4528 tmp_cb
= list_tail(&zcl
.zcl_callbacks
);
4529 while (tmp_cb
!= NULL
&& tmp_cb
->zcd_txg
> txg
)
4530 tmp_cb
= list_prev(&zcl
.zcl_callbacks
, tmp_cb
);
4532 /* Add the 3 callbacks to the list */
4533 for (i
= 0; i
< 3; i
++) {
4535 list_insert_head(&zcl
.zcl_callbacks
, cb_data
[i
]);
4537 list_insert_after(&zcl
.zcl_callbacks
, tmp_cb
,
4540 cb_data
[i
]->zcd_added
= B_TRUE
;
4541 VERIFY(!cb_data
[i
]->zcd_called
);
4543 tmp_cb
= cb_data
[i
];
4546 (void) mutex_unlock(&zcl
.zcl_callbacks_lock
);
4553 ztest_dsl_prop_get_set(ztest_ds_t
*zd
, uint64_t id
)
4555 zfs_prop_t proplist
[] = {
4557 ZFS_PROP_COMPRESSION
,
4562 (void) rw_rdlock(&ztest_name_lock
);
4564 for (int p
= 0; p
< sizeof (proplist
) / sizeof (proplist
[0]); p
++)
4565 (void) ztest_dsl_prop_set_uint64(zd
->zd_name
, proplist
[p
],
4566 ztest_random_dsl_prop(proplist
[p
]), (int)ztest_random(2));
4568 (void) rw_unlock(&ztest_name_lock
);
4573 ztest_spa_prop_get_set(ztest_ds_t
*zd
, uint64_t id
)
4575 nvlist_t
*props
= NULL
;
4577 (void) rw_rdlock(&ztest_name_lock
);
4579 (void) ztest_spa_prop_set_uint64(ZPOOL_PROP_DEDUPDITTO
,
4580 ZIO_DEDUPDITTO_MIN
+ ztest_random(ZIO_DEDUPDITTO_MIN
));
4582 VERIFY0(spa_prop_get(ztest_spa
, &props
));
4584 if (ztest_opts
.zo_verbose
>= 6)
4585 dump_nvlist(props
, 4);
4589 (void) rw_unlock(&ztest_name_lock
);
4593 user_release_one(const char *snapname
, const char *holdname
)
4595 nvlist_t
*snaps
, *holds
;
4598 snaps
= fnvlist_alloc();
4599 holds
= fnvlist_alloc();
4600 fnvlist_add_boolean(holds
, holdname
);
4601 fnvlist_add_nvlist(snaps
, snapname
, holds
);
4602 fnvlist_free(holds
);
4603 error
= dsl_dataset_user_release(snaps
, NULL
);
4604 fnvlist_free(snaps
);
4609 * Test snapshot hold/release and deferred destroy.
4612 ztest_dmu_snapshot_hold(ztest_ds_t
*zd
, uint64_t id
)
4615 objset_t
*os
= zd
->zd_os
;
4619 char clonename
[100];
4621 char osname
[MAXNAMELEN
];
4624 (void) rw_rdlock(&ztest_name_lock
);
4626 dmu_objset_name(os
, osname
);
4628 (void) snprintf(snapname
, sizeof (snapname
), "sh1_%llu", id
);
4629 (void) snprintf(fullname
, sizeof (fullname
), "%s@%s", osname
, snapname
);
4630 (void) snprintf(clonename
, sizeof (clonename
),
4631 "%s/ch1_%llu", osname
, id
);
4632 (void) snprintf(tag
, sizeof (tag
), "tag_%llu", id
);
4635 * Clean up from any previous run.
4637 error
= dsl_destroy_head(clonename
);
4638 if (error
!= ENOENT
)
4640 error
= user_release_one(fullname
, tag
);
4641 if (error
!= ESRCH
&& error
!= ENOENT
)
4643 error
= dsl_destroy_snapshot(fullname
, B_FALSE
);
4644 if (error
!= ENOENT
)
4648 * Create snapshot, clone it, mark snap for deferred destroy,
4649 * destroy clone, verify snap was also destroyed.
4651 error
= dmu_objset_snapshot_one(osname
, snapname
);
4653 if (error
== ENOSPC
) {
4654 ztest_record_enospc("dmu_objset_snapshot");
4657 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname
, error
);
4660 error
= dmu_objset_clone(clonename
, fullname
);
4662 if (error
== ENOSPC
) {
4663 ztest_record_enospc("dmu_objset_clone");
4666 fatal(0, "dmu_objset_clone(%s) = %d", clonename
, error
);
4669 error
= dsl_destroy_snapshot(fullname
, B_TRUE
);
4671 fatal(0, "dsl_destroy_snapshot(%s, B_TRUE) = %d",
4675 error
= dsl_destroy_head(clonename
);
4677 fatal(0, "dsl_destroy_head(%s) = %d", clonename
, error
);
4679 error
= dmu_objset_hold(fullname
, FTAG
, &origin
);
4680 if (error
!= ENOENT
)
4681 fatal(0, "dmu_objset_hold(%s) = %d", fullname
, error
);
4684 * Create snapshot, add temporary hold, verify that we can't
4685 * destroy a held snapshot, mark for deferred destroy,
4686 * release hold, verify snapshot was destroyed.
4688 error
= dmu_objset_snapshot_one(osname
, snapname
);
4690 if (error
== ENOSPC
) {
4691 ztest_record_enospc("dmu_objset_snapshot");
4694 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname
, error
);
4697 holds
= fnvlist_alloc();
4698 fnvlist_add_string(holds
, fullname
, tag
);
4699 error
= dsl_dataset_user_hold(holds
, 0, NULL
);
4700 fnvlist_free(holds
);
4703 fatal(0, "dsl_dataset_user_hold(%s)", fullname
, tag
);
4705 error
= dsl_destroy_snapshot(fullname
, B_FALSE
);
4706 if (error
!= EBUSY
) {
4707 fatal(0, "dsl_destroy_snapshot(%s, B_FALSE) = %d",
4711 error
= dsl_destroy_snapshot(fullname
, B_TRUE
);
4713 fatal(0, "dsl_destroy_snapshot(%s, B_TRUE) = %d",
4717 error
= user_release_one(fullname
, tag
);
4719 fatal(0, "user_release_one(%s, %s) = %d", fullname
, tag
, error
);
4721 VERIFY3U(dmu_objset_hold(fullname
, FTAG
, &origin
), ==, ENOENT
);
4724 (void) rw_unlock(&ztest_name_lock
);
4728 * Inject random faults into the on-disk data.
4732 ztest_fault_inject(ztest_ds_t
*zd
, uint64_t id
)
4734 ztest_shared_t
*zs
= ztest_shared
;
4735 spa_t
*spa
= ztest_spa
;
4739 uint64_t bad
= 0x1990c0ffeedecade;
4741 char path0
[MAXPATHLEN
];
4742 char pathrand
[MAXPATHLEN
];
4744 int bshift
= SPA_MAXBLOCKSHIFT
+ 2; /* don't scrog all labels */
4750 boolean_t islog
= B_FALSE
;
4752 VERIFY(mutex_lock(&ztest_vdev_lock
) == 0);
4753 maxfaults
= MAXFAULTS();
4754 leaves
= MAX(zs
->zs_mirrors
, 1) * ztest_opts
.zo_raidz
;
4755 mirror_save
= zs
->zs_mirrors
;
4756 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
4758 ASSERT(leaves
>= 1);
4761 * Grab the name lock as reader. There are some operations
4762 * which don't like to have their vdevs changed while
4763 * they are in progress (i.e. spa_change_guid). Those
4764 * operations will have grabbed the name lock as writer.
4766 (void) rw_rdlock(&ztest_name_lock
);
4769 * We need SCL_STATE here because we're going to look at vd0->vdev_tsd.
4771 spa_config_enter(spa
, SCL_STATE
, FTAG
, RW_READER
);
4773 if (ztest_random(2) == 0) {
4775 * Inject errors on a normal data device or slog device.
4777 top
= ztest_random_vdev_top(spa
, B_TRUE
);
4778 leaf
= ztest_random(leaves
) + zs
->zs_splits
;
4781 * Generate paths to the first leaf in this top-level vdev,
4782 * and to the random leaf we selected. We'll induce transient
4783 * write failures and random online/offline activity on leaf 0,
4784 * and we'll write random garbage to the randomly chosen leaf.
4786 (void) snprintf(path0
, sizeof (path0
), ztest_dev_template
,
4787 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
4788 top
* leaves
+ zs
->zs_splits
);
4789 (void) snprintf(pathrand
, sizeof (pathrand
), ztest_dev_template
,
4790 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
4791 top
* leaves
+ leaf
);
4793 vd0
= vdev_lookup_by_path(spa
->spa_root_vdev
, path0
);
4794 if (vd0
!= NULL
&& vd0
->vdev_top
->vdev_islog
)
4798 * If the top-level vdev needs to be resilvered
4799 * then we only allow faults on the device that is
4802 if (vd0
!= NULL
&& maxfaults
!= 1 &&
4803 (!vdev_resilver_needed(vd0
->vdev_top
, NULL
, NULL
) ||
4804 vd0
->vdev_resilvering
)) {
4806 * Make vd0 explicitly claim to be unreadable,
4807 * or unwriteable, or reach behind its back
4808 * and close the underlying fd. We can do this if
4809 * maxfaults == 0 because we'll fail and reexecute,
4810 * and we can do it if maxfaults >= 2 because we'll
4811 * have enough redundancy. If maxfaults == 1, the
4812 * combination of this with injection of random data
4813 * corruption below exceeds the pool's fault tolerance.
4815 vdev_file_t
*vf
= vd0
->vdev_tsd
;
4817 if (vf
!= NULL
&& ztest_random(3) == 0) {
4818 (void) close(vf
->vf_vnode
->v_fd
);
4819 vf
->vf_vnode
->v_fd
= -1;
4820 } else if (ztest_random(2) == 0) {
4821 vd0
->vdev_cant_read
= B_TRUE
;
4823 vd0
->vdev_cant_write
= B_TRUE
;
4825 guid0
= vd0
->vdev_guid
;
4829 * Inject errors on an l2cache device.
4831 spa_aux_vdev_t
*sav
= &spa
->spa_l2cache
;
4833 if (sav
->sav_count
== 0) {
4834 spa_config_exit(spa
, SCL_STATE
, FTAG
);
4835 (void) rw_unlock(&ztest_name_lock
);
4838 vd0
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)];
4839 guid0
= vd0
->vdev_guid
;
4840 (void) strcpy(path0
, vd0
->vdev_path
);
4841 (void) strcpy(pathrand
, vd0
->vdev_path
);
4845 maxfaults
= INT_MAX
; /* no limit on cache devices */
4848 spa_config_exit(spa
, SCL_STATE
, FTAG
);
4849 (void) rw_unlock(&ztest_name_lock
);
4852 * If we can tolerate two or more faults, or we're dealing
4853 * with a slog, randomly online/offline vd0.
4855 if ((maxfaults
>= 2 || islog
) && guid0
!= 0) {
4856 if (ztest_random(10) < 6) {
4857 int flags
= (ztest_random(2) == 0 ?
4858 ZFS_OFFLINE_TEMPORARY
: 0);
4861 * We have to grab the zs_name_lock as writer to
4862 * prevent a race between offlining a slog and
4863 * destroying a dataset. Offlining the slog will
4864 * grab a reference on the dataset which may cause
4865 * dmu_objset_destroy() to fail with EBUSY thus
4866 * leaving the dataset in an inconsistent state.
4869 (void) rw_wrlock(&ztest_name_lock
);
4871 VERIFY(vdev_offline(spa
, guid0
, flags
) != EBUSY
);
4874 (void) rw_unlock(&ztest_name_lock
);
4877 * Ideally we would like to be able to randomly
4878 * call vdev_[on|off]line without holding locks
4879 * to force unpredictable failures but the side
4880 * effects of vdev_[on|off]line prevent us from
4881 * doing so. We grab the ztest_vdev_lock here to
4882 * prevent a race between injection testing and
4885 VERIFY(mutex_lock(&ztest_vdev_lock
) == 0);
4886 (void) vdev_online(spa
, guid0
, 0, NULL
);
4887 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
4895 * We have at least single-fault tolerance, so inject data corruption.
4897 fd
= open(pathrand
, O_RDWR
);
4899 if (fd
== -1) /* we hit a gap in the device namespace */
4902 fsize
= lseek(fd
, 0, SEEK_END
);
4904 while (--iters
!= 0) {
4905 offset
= ztest_random(fsize
/ (leaves
<< bshift
)) *
4906 (leaves
<< bshift
) + (leaf
<< bshift
) +
4907 (ztest_random(1ULL << (bshift
- 1)) & -8ULL);
4909 if (offset
>= fsize
)
4912 VERIFY(mutex_lock(&ztest_vdev_lock
) == 0);
4913 if (mirror_save
!= zs
->zs_mirrors
) {
4914 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
4919 if (pwrite(fd
, &bad
, sizeof (bad
), offset
) != sizeof (bad
))
4920 fatal(1, "can't inject bad word at 0x%llx in %s",
4923 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
4925 if (ztest_opts
.zo_verbose
>= 7)
4926 (void) printf("injected bad word into %s,"
4927 " offset 0x%llx\n", pathrand
, (u_longlong_t
)offset
);
4934 * Verify that DDT repair works as expected.
4937 ztest_ddt_repair(ztest_ds_t
*zd
, uint64_t id
)
4939 ztest_shared_t
*zs
= ztest_shared
;
4940 spa_t
*spa
= ztest_spa
;
4941 objset_t
*os
= zd
->zd_os
;
4943 uint64_t object
, blocksize
, txg
, pattern
, psize
;
4944 enum zio_checksum checksum
= spa_dedup_checksum(spa
);
4949 int copies
= 2 * ZIO_DEDUPDITTO_MIN
;
4951 blocksize
= ztest_random_blocksize();
4952 blocksize
= MIN(blocksize
, 2048); /* because we write so many */
4954 ztest_od_init(&od
[0], id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0);
4956 if (ztest_object_init(zd
, od
, sizeof (od
), B_FALSE
) != 0)
4960 * Take the name lock as writer to prevent anyone else from changing
4961 * the pool and dataset properies we need to maintain during this test.
4963 (void) rw_wrlock(&ztest_name_lock
);
4965 if (ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_DEDUP
, checksum
,
4967 ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_COPIES
, 1,
4969 (void) rw_unlock(&ztest_name_lock
);
4973 object
= od
[0].od_object
;
4974 blocksize
= od
[0].od_blocksize
;
4975 pattern
= zs
->zs_guid
^ dmu_objset_fsid_guid(os
);
4977 ASSERT(object
!= 0);
4979 tx
= dmu_tx_create(os
);
4980 dmu_tx_hold_write(tx
, object
, 0, copies
* blocksize
);
4981 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
4983 (void) rw_unlock(&ztest_name_lock
);
4988 * Write all the copies of our block.
4990 for (int i
= 0; i
< copies
; i
++) {
4991 uint64_t offset
= i
* blocksize
;
4992 int error
= dmu_buf_hold(os
, object
, offset
, FTAG
, &db
,
4993 DMU_READ_NO_PREFETCH
);
4995 fatal(B_FALSE
, "dmu_buf_hold(%p, %llu, %llu) = %u",
4996 os
, (long long)object
, (long long) offset
, error
);
4998 ASSERT(db
->db_offset
== offset
);
4999 ASSERT(db
->db_size
== blocksize
);
5000 ASSERT(ztest_pattern_match(db
->db_data
, db
->db_size
, pattern
) ||
5001 ztest_pattern_match(db
->db_data
, db
->db_size
, 0ULL));
5002 dmu_buf_will_fill(db
, tx
);
5003 ztest_pattern_set(db
->db_data
, db
->db_size
, pattern
);
5004 dmu_buf_rele(db
, FTAG
);
5008 txg_wait_synced(spa_get_dsl(spa
), txg
);
5011 * Find out what block we got.
5013 VERIFY0(dmu_buf_hold(os
, object
, 0, FTAG
, &db
,
5014 DMU_READ_NO_PREFETCH
));
5015 blk
= *((dmu_buf_impl_t
*)db
)->db_blkptr
;
5016 dmu_buf_rele(db
, FTAG
);
5019 * Damage the block. Dedup-ditto will save us when we read it later.
5021 psize
= BP_GET_PSIZE(&blk
);
5022 buf
= zio_buf_alloc(psize
);
5023 ztest_pattern_set(buf
, psize
, ~pattern
);
5025 (void) zio_wait(zio_rewrite(NULL
, spa
, 0, &blk
,
5026 buf
, psize
, NULL
, NULL
, ZIO_PRIORITY_SYNC_WRITE
,
5027 ZIO_FLAG_CANFAIL
| ZIO_FLAG_INDUCE_DAMAGE
, NULL
));
5029 zio_buf_free(buf
, psize
);
5031 (void) rw_unlock(&ztest_name_lock
);
5039 ztest_scrub(ztest_ds_t
*zd
, uint64_t id
)
5041 spa_t
*spa
= ztest_spa
;
5043 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5044 (void) poll(NULL
, 0, 100); /* wait a moment, then force a restart */
5045 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5049 * Change the guid for the pool.
5053 ztest_reguid(ztest_ds_t
*zd
, uint64_t id
)
5055 spa_t
*spa
= ztest_spa
;
5056 uint64_t orig
, load
;
5059 orig
= spa_guid(spa
);
5060 load
= spa_load_guid(spa
);
5062 (void) rw_wrlock(&ztest_name_lock
);
5063 error
= spa_change_guid(spa
);
5064 (void) rw_unlock(&ztest_name_lock
);
5069 if (ztest_opts
.zo_verbose
>= 4) {
5070 (void) printf("Changed guid old %llu -> %llu\n",
5071 (u_longlong_t
)orig
, (u_longlong_t
)spa_guid(spa
));
5074 VERIFY3U(orig
, !=, spa_guid(spa
));
5075 VERIFY3U(load
, ==, spa_load_guid(spa
));
5079 * Rename the pool to a different name and then rename it back.
5083 ztest_spa_rename(ztest_ds_t
*zd
, uint64_t id
)
5085 char *oldname
, *newname
;
5088 (void) rw_wrlock(&ztest_name_lock
);
5090 oldname
= ztest_opts
.zo_pool
;
5091 newname
= umem_alloc(strlen(oldname
) + 5, UMEM_NOFAIL
);
5092 (void) strcpy(newname
, oldname
);
5093 (void) strcat(newname
, "_tmp");
5098 VERIFY3U(0, ==, spa_rename(oldname
, newname
));
5101 * Try to open it under the old name, which shouldn't exist
5103 VERIFY3U(ENOENT
, ==, spa_open(oldname
, &spa
, FTAG
));
5106 * Open it under the new name and make sure it's still the same spa_t.
5108 VERIFY3U(0, ==, spa_open(newname
, &spa
, FTAG
));
5110 ASSERT(spa
== ztest_spa
);
5111 spa_close(spa
, FTAG
);
5114 * Rename it back to the original
5116 VERIFY3U(0, ==, spa_rename(newname
, oldname
));
5119 * Make sure it can still be opened
5121 VERIFY3U(0, ==, spa_open(oldname
, &spa
, FTAG
));
5123 ASSERT(spa
== ztest_spa
);
5124 spa_close(spa
, FTAG
);
5126 umem_free(newname
, strlen(newname
) + 1);
5128 (void) rw_unlock(&ztest_name_lock
);
5132 * Verify pool integrity by running zdb.
5135 ztest_run_zdb(char *pool
)
5138 char zdb
[MAXPATHLEN
+ MAXNAMELEN
+ 20];
5146 (void) realpath(getexecname(), zdb
);
5148 /* zdb lives in /usr/sbin, while ztest lives in /usr/bin */
5149 bin
= strstr(zdb
, "/usr/bin/");
5150 ztest
= strstr(bin
, "/ztest");
5152 isalen
= ztest
- isa
;
5156 "/usr/sbin%.*s/zdb -bcc%s%s -U %s %s",
5159 ztest_opts
.zo_verbose
>= 3 ? "s" : "",
5160 ztest_opts
.zo_verbose
>= 4 ? "v" : "",
5165 if (ztest_opts
.zo_verbose
>= 5)
5166 (void) printf("Executing %s\n", strstr(zdb
, "zdb "));
5168 fp
= popen(zdb
, "r");
5170 while (fgets(zbuf
, sizeof (zbuf
), fp
) != NULL
)
5171 if (ztest_opts
.zo_verbose
>= 3)
5172 (void) printf("%s", zbuf
);
5174 status
= pclose(fp
);
5179 ztest_dump_core
= 0;
5180 if (WIFEXITED(status
))
5181 fatal(0, "'%s' exit code %d", zdb
, WEXITSTATUS(status
));
5183 fatal(0, "'%s' died with signal %d", zdb
, WTERMSIG(status
));
5187 ztest_walk_pool_directory(char *header
)
5191 if (ztest_opts
.zo_verbose
>= 6)
5192 (void) printf("%s\n", header
);
5194 mutex_enter(&spa_namespace_lock
);
5195 while ((spa
= spa_next(spa
)) != NULL
)
5196 if (ztest_opts
.zo_verbose
>= 6)
5197 (void) printf("\t%s\n", spa_name(spa
));
5198 mutex_exit(&spa_namespace_lock
);
5202 ztest_spa_import_export(char *oldname
, char *newname
)
5204 nvlist_t
*config
, *newconfig
;
5209 if (ztest_opts
.zo_verbose
>= 4) {
5210 (void) printf("import/export: old = %s, new = %s\n",
5215 * Clean up from previous runs.
5217 (void) spa_destroy(newname
);
5220 * Get the pool's configuration and guid.
5222 VERIFY3U(0, ==, spa_open(oldname
, &spa
, FTAG
));
5225 * Kick off a scrub to tickle scrub/export races.
5227 if (ztest_random(2) == 0)
5228 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5230 pool_guid
= spa_guid(spa
);
5231 spa_close(spa
, FTAG
);
5233 ztest_walk_pool_directory("pools before export");
5238 VERIFY3U(0, ==, spa_export(oldname
, &config
, B_FALSE
, B_FALSE
));
5240 ztest_walk_pool_directory("pools after export");
5245 newconfig
= spa_tryimport(config
);
5246 ASSERT(newconfig
!= NULL
);
5247 nvlist_free(newconfig
);
5250 * Import it under the new name.
5252 error
= spa_import(newname
, config
, NULL
, 0);
5254 dump_nvlist(config
, 0);
5255 fatal(B_FALSE
, "couldn't import pool %s as %s: error %u",
5256 oldname
, newname
, error
);
5259 ztest_walk_pool_directory("pools after import");
5262 * Try to import it again -- should fail with EEXIST.
5264 VERIFY3U(EEXIST
, ==, spa_import(newname
, config
, NULL
, 0));
5267 * Try to import it under a different name -- should fail with EEXIST.
5269 VERIFY3U(EEXIST
, ==, spa_import(oldname
, config
, NULL
, 0));
5272 * Verify that the pool is no longer visible under the old name.
5274 VERIFY3U(ENOENT
, ==, spa_open(oldname
, &spa
, FTAG
));
5277 * Verify that we can open and close the pool using the new name.
5279 VERIFY3U(0, ==, spa_open(newname
, &spa
, FTAG
));
5280 ASSERT(pool_guid
== spa_guid(spa
));
5281 spa_close(spa
, FTAG
);
5283 nvlist_free(config
);
5287 ztest_resume(spa_t
*spa
)
5289 if (spa_suspended(spa
) && ztest_opts
.zo_verbose
>= 6)
5290 (void) printf("resuming from suspended state\n");
5291 spa_vdev_state_enter(spa
, SCL_NONE
);
5292 vdev_clear(spa
, NULL
);
5293 (void) spa_vdev_state_exit(spa
, NULL
, 0);
5294 (void) zio_resume(spa
);
5298 ztest_resume_thread(void *arg
)
5302 while (!ztest_exiting
) {
5303 if (spa_suspended(spa
))
5305 (void) poll(NULL
, 0, 100);
5311 ztest_deadman_thread(void *arg
)
5313 ztest_shared_t
*zs
= arg
;
5314 spa_t
*spa
= ztest_spa
;
5315 hrtime_t delta
, total
= 0;
5318 delta
= (zs
->zs_thread_stop
- zs
->zs_thread_start
) /
5319 NANOSEC
+ zfs_deadman_synctime
;
5321 (void) poll(NULL
, 0, (int)(1000 * delta
));
5324 * If the pool is suspended then fail immediately. Otherwise,
5325 * check to see if the pool is making any progress. If
5326 * vdev_deadman() discovers that there hasn't been any recent
5327 * I/Os then it will end up aborting the tests.
5329 if (spa_suspended(spa
)) {
5330 fatal(0, "aborting test after %llu seconds because "
5331 "pool has transitioned to a suspended state.",
5332 zfs_deadman_synctime
);
5335 vdev_deadman(spa
->spa_root_vdev
);
5337 total
+= zfs_deadman_synctime
;
5338 (void) printf("ztest has been running for %lld seconds\n",
5344 ztest_execute(int test
, ztest_info_t
*zi
, uint64_t id
)
5346 ztest_ds_t
*zd
= &ztest_ds
[id
% ztest_opts
.zo_datasets
];
5347 ztest_shared_callstate_t
*zc
= ZTEST_GET_SHARED_CALLSTATE(test
);
5348 hrtime_t functime
= gethrtime();
5350 for (int i
= 0; i
< zi
->zi_iters
; i
++)
5351 zi
->zi_func(zd
, id
);
5353 functime
= gethrtime() - functime
;
5355 atomic_add_64(&zc
->zc_count
, 1);
5356 atomic_add_64(&zc
->zc_time
, functime
);
5358 if (ztest_opts
.zo_verbose
>= 4) {
5360 (void) dladdr((void *)zi
->zi_func
, &dli
);
5361 (void) printf("%6.2f sec in %s\n",
5362 (double)functime
/ NANOSEC
, dli
.dli_sname
);
5367 ztest_thread(void *arg
)
5370 uint64_t id
= (uintptr_t)arg
;
5371 ztest_shared_t
*zs
= ztest_shared
;
5375 ztest_shared_callstate_t
*zc
;
5377 while ((now
= gethrtime()) < zs
->zs_thread_stop
) {
5379 * See if it's time to force a crash.
5381 if (now
> zs
->zs_thread_kill
)
5385 * If we're getting ENOSPC with some regularity, stop.
5387 if (zs
->zs_enospc_count
> 10)
5391 * Pick a random function to execute.
5393 rand
= ztest_random(ZTEST_FUNCS
);
5394 zi
= &ztest_info
[rand
];
5395 zc
= ZTEST_GET_SHARED_CALLSTATE(rand
);
5396 call_next
= zc
->zc_next
;
5398 if (now
>= call_next
&&
5399 atomic_cas_64(&zc
->zc_next
, call_next
, call_next
+
5400 ztest_random(2 * zi
->zi_interval
[0] + 1)) == call_next
) {
5401 ztest_execute(rand
, zi
, id
);
5409 ztest_dataset_name(char *dsname
, char *pool
, int d
)
5411 (void) snprintf(dsname
, MAXNAMELEN
, "%s/ds_%d", pool
, d
);
5415 ztest_dataset_destroy(int d
)
5417 char name
[MAXNAMELEN
];
5419 ztest_dataset_name(name
, ztest_opts
.zo_pool
, d
);
5421 if (ztest_opts
.zo_verbose
>= 3)
5422 (void) printf("Destroying %s to free up space\n", name
);
5425 * Cleanup any non-standard clones and snapshots. In general,
5426 * ztest thread t operates on dataset (t % zopt_datasets),
5427 * so there may be more than one thing to clean up.
5429 for (int t
= d
; t
< ztest_opts
.zo_threads
;
5430 t
+= ztest_opts
.zo_datasets
) {
5431 ztest_dsl_dataset_cleanup(name
, t
);
5434 (void) dmu_objset_find(name
, ztest_objset_destroy_cb
, NULL
,
5435 DS_FIND_SNAPSHOTS
| DS_FIND_CHILDREN
);
5439 ztest_dataset_dirobj_verify(ztest_ds_t
*zd
)
5441 uint64_t usedobjs
, dirobjs
, scratch
;
5444 * ZTEST_DIROBJ is the object directory for the entire dataset.
5445 * Therefore, the number of objects in use should equal the
5446 * number of ZTEST_DIROBJ entries, +1 for ZTEST_DIROBJ itself.
5447 * If not, we have an object leak.
5449 * Note that we can only check this in ztest_dataset_open(),
5450 * when the open-context and syncing-context values agree.
5451 * That's because zap_count() returns the open-context value,
5452 * while dmu_objset_space() returns the rootbp fill count.
5454 VERIFY3U(0, ==, zap_count(zd
->zd_os
, ZTEST_DIROBJ
, &dirobjs
));
5455 dmu_objset_space(zd
->zd_os
, &scratch
, &scratch
, &usedobjs
, &scratch
);
5456 ASSERT3U(dirobjs
+ 1, ==, usedobjs
);
5460 ztest_dataset_open(int d
)
5462 ztest_ds_t
*zd
= &ztest_ds
[d
];
5463 uint64_t committed_seq
= ZTEST_GET_SHARED_DS(d
)->zd_seq
;
5466 char name
[MAXNAMELEN
];
5469 ztest_dataset_name(name
, ztest_opts
.zo_pool
, d
);
5471 (void) rw_rdlock(&ztest_name_lock
);
5473 error
= ztest_dataset_create(name
);
5474 if (error
== ENOSPC
) {
5475 (void) rw_unlock(&ztest_name_lock
);
5476 ztest_record_enospc(FTAG
);
5479 ASSERT(error
== 0 || error
== EEXIST
);
5481 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, zd
, &os
));
5482 (void) rw_unlock(&ztest_name_lock
);
5484 ztest_zd_init(zd
, ZTEST_GET_SHARED_DS(d
), os
);
5486 zilog
= zd
->zd_zilog
;
5488 if (zilog
->zl_header
->zh_claim_lr_seq
!= 0 &&
5489 zilog
->zl_header
->zh_claim_lr_seq
< committed_seq
)
5490 fatal(0, "missing log records: claimed %llu < committed %llu",
5491 zilog
->zl_header
->zh_claim_lr_seq
, committed_seq
);
5493 ztest_dataset_dirobj_verify(zd
);
5495 zil_replay(os
, zd
, ztest_replay_vector
);
5497 ztest_dataset_dirobj_verify(zd
);
5499 if (ztest_opts
.zo_verbose
>= 6)
5500 (void) printf("%s replay %llu blocks, %llu records, seq %llu\n",
5502 (u_longlong_t
)zilog
->zl_parse_blk_count
,
5503 (u_longlong_t
)zilog
->zl_parse_lr_count
,
5504 (u_longlong_t
)zilog
->zl_replaying_seq
);
5506 zilog
= zil_open(os
, ztest_get_data
);
5508 if (zilog
->zl_replaying_seq
!= 0 &&
5509 zilog
->zl_replaying_seq
< committed_seq
)
5510 fatal(0, "missing log records: replayed %llu < committed %llu",
5511 zilog
->zl_replaying_seq
, committed_seq
);
5517 ztest_dataset_close(int d
)
5519 ztest_ds_t
*zd
= &ztest_ds
[d
];
5521 zil_close(zd
->zd_zilog
);
5522 dmu_objset_disown(zd
->zd_os
, zd
);
5528 * Kick off threads to run tests on all datasets in parallel.
5531 ztest_run(ztest_shared_t
*zs
)
5536 thread_t resume_tid
;
5539 ztest_exiting
= B_FALSE
;
5542 * Initialize parent/child shared state.
5544 VERIFY(_mutex_init(&ztest_vdev_lock
, USYNC_THREAD
, NULL
) == 0);
5545 VERIFY(rwlock_init(&ztest_name_lock
, USYNC_THREAD
, NULL
) == 0);
5547 zs
->zs_thread_start
= gethrtime();
5548 zs
->zs_thread_stop
=
5549 zs
->zs_thread_start
+ ztest_opts
.zo_passtime
* NANOSEC
;
5550 zs
->zs_thread_stop
= MIN(zs
->zs_thread_stop
, zs
->zs_proc_stop
);
5551 zs
->zs_thread_kill
= zs
->zs_thread_stop
;
5552 if (ztest_random(100) < ztest_opts
.zo_killrate
) {
5553 zs
->zs_thread_kill
-=
5554 ztest_random(ztest_opts
.zo_passtime
* NANOSEC
);
5557 (void) _mutex_init(&zcl
.zcl_callbacks_lock
, USYNC_THREAD
, NULL
);
5559 list_create(&zcl
.zcl_callbacks
, sizeof (ztest_cb_data_t
),
5560 offsetof(ztest_cb_data_t
, zcd_node
));
5565 kernel_init(FREAD
| FWRITE
);
5566 VERIFY0(spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
5567 spa
->spa_debug
= B_TRUE
;
5570 VERIFY0(dmu_objset_own(ztest_opts
.zo_pool
,
5571 DMU_OST_ANY
, B_TRUE
, FTAG
, &os
));
5572 zs
->zs_guid
= dmu_objset_fsid_guid(os
);
5573 dmu_objset_disown(os
, FTAG
);
5575 spa
->spa_dedup_ditto
= 2 * ZIO_DEDUPDITTO_MIN
;
5578 * We don't expect the pool to suspend unless maxfaults == 0,
5579 * in which case ztest_fault_inject() temporarily takes away
5580 * the only valid replica.
5582 if (MAXFAULTS() == 0)
5583 spa
->spa_failmode
= ZIO_FAILURE_MODE_WAIT
;
5585 spa
->spa_failmode
= ZIO_FAILURE_MODE_PANIC
;
5588 * Create a thread to periodically resume suspended I/O.
5590 VERIFY(thr_create(0, 0, ztest_resume_thread
, spa
, THR_BOUND
,
5594 * Create a deadman thread to abort() if we hang.
5596 VERIFY(thr_create(0, 0, ztest_deadman_thread
, zs
, THR_BOUND
,
5600 * Verify that we can safely inquire about about any object,
5601 * whether it's allocated or not. To make it interesting,
5602 * we probe a 5-wide window around each power of two.
5603 * This hits all edge cases, including zero and the max.
5605 for (int t
= 0; t
< 64; t
++) {
5606 for (int d
= -5; d
<= 5; d
++) {
5607 error
= dmu_object_info(spa
->spa_meta_objset
,
5608 (1ULL << t
) + d
, NULL
);
5609 ASSERT(error
== 0 || error
== ENOENT
||
5615 * If we got any ENOSPC errors on the previous run, destroy something.
5617 if (zs
->zs_enospc_count
!= 0) {
5618 int d
= ztest_random(ztest_opts
.zo_datasets
);
5619 ztest_dataset_destroy(d
);
5621 zs
->zs_enospc_count
= 0;
5623 tid
= umem_zalloc(ztest_opts
.zo_threads
* sizeof (thread_t
),
5626 if (ztest_opts
.zo_verbose
>= 4)
5627 (void) printf("starting main threads...\n");
5630 * Kick off all the tests that run in parallel.
5632 for (int t
= 0; t
< ztest_opts
.zo_threads
; t
++) {
5633 if (t
< ztest_opts
.zo_datasets
&&
5634 ztest_dataset_open(t
) != 0)
5636 VERIFY(thr_create(0, 0, ztest_thread
, (void *)(uintptr_t)t
,
5637 THR_BOUND
, &tid
[t
]) == 0);
5641 * Wait for all of the tests to complete. We go in reverse order
5642 * so we don't close datasets while threads are still using them.
5644 for (int t
= ztest_opts
.zo_threads
- 1; t
>= 0; t
--) {
5645 VERIFY(thr_join(tid
[t
], NULL
, NULL
) == 0);
5646 if (t
< ztest_opts
.zo_datasets
)
5647 ztest_dataset_close(t
);
5650 txg_wait_synced(spa_get_dsl(spa
), 0);
5652 zs
->zs_alloc
= metaslab_class_get_alloc(spa_normal_class(spa
));
5653 zs
->zs_space
= metaslab_class_get_space(spa_normal_class(spa
));
5655 umem_free(tid
, ztest_opts
.zo_threads
* sizeof (thread_t
));
5657 /* Kill the resume thread */
5658 ztest_exiting
= B_TRUE
;
5659 VERIFY(thr_join(resume_tid
, NULL
, NULL
) == 0);
5663 * Right before closing the pool, kick off a bunch of async I/O;
5664 * spa_close() should wait for it to complete.
5666 for (uint64_t object
= 1; object
< 50; object
++)
5667 dmu_prefetch(spa
->spa_meta_objset
, object
, 0, 1ULL << 20);
5669 spa_close(spa
, FTAG
);
5672 * Verify that we can loop over all pools.
5674 mutex_enter(&spa_namespace_lock
);
5675 for (spa
= spa_next(NULL
); spa
!= NULL
; spa
= spa_next(spa
))
5676 if (ztest_opts
.zo_verbose
> 3)
5677 (void) printf("spa_next: found %s\n", spa_name(spa
));
5678 mutex_exit(&spa_namespace_lock
);
5681 * Verify that we can export the pool and reimport it under a
5684 if (ztest_random(2) == 0) {
5685 char name
[MAXNAMELEN
];
5686 (void) snprintf(name
, MAXNAMELEN
, "%s_import",
5687 ztest_opts
.zo_pool
);
5688 ztest_spa_import_export(ztest_opts
.zo_pool
, name
);
5689 ztest_spa_import_export(name
, ztest_opts
.zo_pool
);
5694 list_destroy(&zcl
.zcl_callbacks
);
5696 (void) _mutex_destroy(&zcl
.zcl_callbacks_lock
);
5698 (void) rwlock_destroy(&ztest_name_lock
);
5699 (void) _mutex_destroy(&ztest_vdev_lock
);
5705 ztest_ds_t
*zd
= &ztest_ds
[0];
5709 if (ztest_opts
.zo_verbose
>= 3)
5710 (void) printf("testing spa_freeze()...\n");
5712 kernel_init(FREAD
| FWRITE
);
5713 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
5714 VERIFY3U(0, ==, ztest_dataset_open(0));
5715 spa
->spa_debug
= B_TRUE
;
5719 * Force the first log block to be transactionally allocated.
5720 * We have to do this before we freeze the pool -- otherwise
5721 * the log chain won't be anchored.
5723 while (BP_IS_HOLE(&zd
->zd_zilog
->zl_header
->zh_log
)) {
5724 ztest_dmu_object_alloc_free(zd
, 0);
5725 zil_commit(zd
->zd_zilog
, 0);
5728 txg_wait_synced(spa_get_dsl(spa
), 0);
5731 * Freeze the pool. This stops spa_sync() from doing anything,
5732 * so that the only way to record changes from now on is the ZIL.
5737 * Run tests that generate log records but don't alter the pool config
5738 * or depend on DSL sync tasks (snapshots, objset create/destroy, etc).
5739 * We do a txg_wait_synced() after each iteration to force the txg
5740 * to increase well beyond the last synced value in the uberblock.
5741 * The ZIL should be OK with that.
5743 while (ztest_random(10) != 0 &&
5744 numloops
++ < ztest_opts
.zo_maxloops
) {
5745 ztest_dmu_write_parallel(zd
, 0);
5746 ztest_dmu_object_alloc_free(zd
, 0);
5747 txg_wait_synced(spa_get_dsl(spa
), 0);
5751 * Commit all of the changes we just generated.
5753 zil_commit(zd
->zd_zilog
, 0);
5754 txg_wait_synced(spa_get_dsl(spa
), 0);
5757 * Close our dataset and close the pool.
5759 ztest_dataset_close(0);
5760 spa_close(spa
, FTAG
);
5764 * Open and close the pool and dataset to induce log replay.
5766 kernel_init(FREAD
| FWRITE
);
5767 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
5768 ASSERT(spa_freeze_txg(spa
) == UINT64_MAX
);
5769 VERIFY3U(0, ==, ztest_dataset_open(0));
5770 ztest_dataset_close(0);
5772 spa
->spa_debug
= B_TRUE
;
5774 txg_wait_synced(spa_get_dsl(spa
), 0);
5775 ztest_reguid(NULL
, 0);
5777 spa_close(spa
, FTAG
);
5782 print_time(hrtime_t t
, char *timebuf
)
5784 hrtime_t s
= t
/ NANOSEC
;
5785 hrtime_t m
= s
/ 60;
5786 hrtime_t h
= m
/ 60;
5787 hrtime_t d
= h
/ 24;
5796 (void) sprintf(timebuf
,
5797 "%llud%02lluh%02llum%02llus", d
, h
, m
, s
);
5799 (void) sprintf(timebuf
, "%lluh%02llum%02llus", h
, m
, s
);
5801 (void) sprintf(timebuf
, "%llum%02llus", m
, s
);
5803 (void) sprintf(timebuf
, "%llus", s
);
5811 VERIFY(nvlist_alloc(&props
, NV_UNIQUE_NAME
, 0) == 0);
5812 if (ztest_random(2) == 0)
5814 VERIFY(nvlist_add_uint64(props
, "autoreplace", 1) == 0);
5820 * Create a storage pool with the given name and initial vdev size.
5821 * Then test spa_freeze() functionality.
5824 ztest_init(ztest_shared_t
*zs
)
5827 nvlist_t
*nvroot
, *props
;
5829 VERIFY(_mutex_init(&ztest_vdev_lock
, USYNC_THREAD
, NULL
) == 0);
5830 VERIFY(rwlock_init(&ztest_name_lock
, USYNC_THREAD
, NULL
) == 0);
5832 kernel_init(FREAD
| FWRITE
);
5835 * Create the storage pool.
5837 (void) spa_destroy(ztest_opts
.zo_pool
);
5838 ztest_shared
->zs_vdev_next_leaf
= 0;
5840 zs
->zs_mirrors
= ztest_opts
.zo_mirrors
;
5841 nvroot
= make_vdev_root(NULL
, NULL
, NULL
, ztest_opts
.zo_vdev_size
, 0,
5842 0, ztest_opts
.zo_raidz
, zs
->zs_mirrors
, 1);
5843 props
= make_random_props();
5844 for (int i
= 0; i
< SPA_FEATURES
; i
++) {
5846 (void) snprintf(buf
, sizeof (buf
), "feature@%s",
5847 spa_feature_table
[i
].fi_uname
);
5848 VERIFY3U(0, ==, nvlist_add_uint64(props
, buf
, 0));
5850 VERIFY3U(0, ==, spa_create(ztest_opts
.zo_pool
, nvroot
, props
, NULL
));
5851 nvlist_free(nvroot
);
5853 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
5854 zs
->zs_metaslab_sz
=
5855 1ULL << spa
->spa_root_vdev
->vdev_child
[0]->vdev_ms_shift
;
5857 spa_close(spa
, FTAG
);
5861 ztest_run_zdb(ztest_opts
.zo_pool
);
5865 ztest_run_zdb(ztest_opts
.zo_pool
);
5867 (void) rwlock_destroy(&ztest_name_lock
);
5868 (void) _mutex_destroy(&ztest_vdev_lock
);
5874 static char ztest_name_data
[] = "/tmp/ztest.data.XXXXXX";
5876 ztest_fd_data
= mkstemp(ztest_name_data
);
5877 ASSERT3S(ztest_fd_data
, >=, 0);
5878 (void) unlink(ztest_name_data
);
5883 shared_data_size(ztest_shared_hdr_t
*hdr
)
5887 size
= hdr
->zh_hdr_size
;
5888 size
+= hdr
->zh_opts_size
;
5889 size
+= hdr
->zh_size
;
5890 size
+= hdr
->zh_stats_size
* hdr
->zh_stats_count
;
5891 size
+= hdr
->zh_ds_size
* hdr
->zh_ds_count
;
5900 ztest_shared_hdr_t
*hdr
;
5902 hdr
= (void *)mmap(0, P2ROUNDUP(sizeof (*hdr
), getpagesize()),
5903 PROT_READ
| PROT_WRITE
, MAP_SHARED
, ztest_fd_data
, 0);
5904 ASSERT(hdr
!= MAP_FAILED
);
5906 VERIFY3U(0, ==, ftruncate(ztest_fd_data
, sizeof (ztest_shared_hdr_t
)));
5908 hdr
->zh_hdr_size
= sizeof (ztest_shared_hdr_t
);
5909 hdr
->zh_opts_size
= sizeof (ztest_shared_opts_t
);
5910 hdr
->zh_size
= sizeof (ztest_shared_t
);
5911 hdr
->zh_stats_size
= sizeof (ztest_shared_callstate_t
);
5912 hdr
->zh_stats_count
= ZTEST_FUNCS
;
5913 hdr
->zh_ds_size
= sizeof (ztest_shared_ds_t
);
5914 hdr
->zh_ds_count
= ztest_opts
.zo_datasets
;
5916 size
= shared_data_size(hdr
);
5917 VERIFY3U(0, ==, ftruncate(ztest_fd_data
, size
));
5919 (void) munmap((caddr_t
)hdr
, P2ROUNDUP(sizeof (*hdr
), getpagesize()));
5926 ztest_shared_hdr_t
*hdr
;
5929 hdr
= (void *)mmap(0, P2ROUNDUP(sizeof (*hdr
), getpagesize()),
5930 PROT_READ
, MAP_SHARED
, ztest_fd_data
, 0);
5931 ASSERT(hdr
!= MAP_FAILED
);
5933 size
= shared_data_size(hdr
);
5935 (void) munmap((caddr_t
)hdr
, P2ROUNDUP(sizeof (*hdr
), getpagesize()));
5936 hdr
= ztest_shared_hdr
= (void *)mmap(0, P2ROUNDUP(size
, getpagesize()),
5937 PROT_READ
| PROT_WRITE
, MAP_SHARED
, ztest_fd_data
, 0);
5938 ASSERT(hdr
!= MAP_FAILED
);
5939 buf
= (uint8_t *)hdr
;
5941 offset
= hdr
->zh_hdr_size
;
5942 ztest_shared_opts
= (void *)&buf
[offset
];
5943 offset
+= hdr
->zh_opts_size
;
5944 ztest_shared
= (void *)&buf
[offset
];
5945 offset
+= hdr
->zh_size
;
5946 ztest_shared_callstate
= (void *)&buf
[offset
];
5947 offset
+= hdr
->zh_stats_size
* hdr
->zh_stats_count
;
5948 ztest_shared_ds
= (void *)&buf
[offset
];
5952 exec_child(char *cmd
, char *libpath
, boolean_t ignorekill
, int *statusp
)
5956 char *cmdbuf
= NULL
;
5961 cmdbuf
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
5962 (void) strlcpy(cmdbuf
, getexecname(), MAXPATHLEN
);
5967 fatal(1, "fork failed");
5969 if (pid
== 0) { /* child */
5970 char *emptyargv
[2] = { cmd
, NULL
};
5971 char fd_data_str
[12];
5973 struct rlimit rl
= { 1024, 1024 };
5974 (void) setrlimit(RLIMIT_NOFILE
, &rl
);
5976 (void) close(ztest_fd_rand
);
5978 snprintf(fd_data_str
, 12, "%d", ztest_fd_data
));
5979 VERIFY0(setenv("ZTEST_FD_DATA", fd_data_str
, 1));
5981 (void) enable_extended_FILE_stdio(-1, -1);
5982 if (libpath
!= NULL
)
5983 VERIFY(0 == setenv("LD_LIBRARY_PATH", libpath
, 1));
5984 (void) execv(cmd
, emptyargv
);
5985 ztest_dump_core
= B_FALSE
;
5986 fatal(B_TRUE
, "exec failed: %s", cmd
);
5989 if (cmdbuf
!= NULL
) {
5990 umem_free(cmdbuf
, MAXPATHLEN
);
5994 while (waitpid(pid
, &status
, 0) != pid
)
5996 if (statusp
!= NULL
)
5999 if (WIFEXITED(status
)) {
6000 if (WEXITSTATUS(status
) != 0) {
6001 (void) fprintf(stderr
, "child exited with code %d\n",
6002 WEXITSTATUS(status
));
6006 } else if (WIFSIGNALED(status
)) {
6007 if (!ignorekill
|| WTERMSIG(status
) != SIGKILL
) {
6008 (void) fprintf(stderr
, "child died with signal %d\n",
6014 (void) fprintf(stderr
, "something strange happened to child\n");
6021 ztest_run_init(void)
6023 ztest_shared_t
*zs
= ztest_shared
;
6025 ASSERT(ztest_opts
.zo_init
!= 0);
6028 * Blow away any existing copy of zpool.cache
6030 (void) remove(spa_config_path
);
6033 * Create and initialize our storage pool.
6035 for (int i
= 1; i
<= ztest_opts
.zo_init
; i
++) {
6036 bzero(zs
, sizeof (ztest_shared_t
));
6037 if (ztest_opts
.zo_verbose
>= 3 &&
6038 ztest_opts
.zo_init
!= 1) {
6039 (void) printf("ztest_init(), pass %d\n", i
);
6046 main(int argc
, char **argv
)
6054 ztest_shared_callstate_t
*zc
;
6060 char *fd_data_str
= getenv("ZTEST_FD_DATA");
6062 (void) setvbuf(stdout
, NULL
, _IOLBF
, 0);
6064 dprintf_setup(&argc
, argv
);
6065 zfs_deadman_synctime
= 300;
6067 ztest_fd_rand
= open("/dev/urandom", O_RDONLY
);
6068 ASSERT3S(ztest_fd_rand
, >=, 0);
6071 process_options(argc
, argv
);
6076 bcopy(&ztest_opts
, ztest_shared_opts
,
6077 sizeof (*ztest_shared_opts
));
6079 ztest_fd_data
= atoi(fd_data_str
);
6081 bcopy(ztest_shared_opts
, &ztest_opts
, sizeof (ztest_opts
));
6083 ASSERT3U(ztest_opts
.zo_datasets
, ==, ztest_shared_hdr
->zh_ds_count
);
6085 /* Override location of zpool.cache */
6086 VERIFY3U(asprintf((char **)&spa_config_path
, "%s/zpool.cache",
6087 ztest_opts
.zo_dir
), !=, -1);
6089 ztest_ds
= umem_alloc(ztest_opts
.zo_datasets
* sizeof (ztest_ds_t
),
6094 metaslab_gang_bang
= ztest_opts
.zo_metaslab_gang_bang
;
6095 metaslab_df_alloc_threshold
=
6096 zs
->zs_metaslab_df_alloc_threshold
;
6105 hasalt
= (strlen(ztest_opts
.zo_alt_ztest
) != 0);
6107 if (ztest_opts
.zo_verbose
>= 1) {
6108 (void) printf("%llu vdevs, %d datasets, %d threads,"
6109 " %llu seconds...\n",
6110 (u_longlong_t
)ztest_opts
.zo_vdevs
,
6111 ztest_opts
.zo_datasets
,
6112 ztest_opts
.zo_threads
,
6113 (u_longlong_t
)ztest_opts
.zo_time
);
6116 cmd
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
6117 (void) strlcpy(cmd
, getexecname(), MAXNAMELEN
);
6119 zs
->zs_do_init
= B_TRUE
;
6120 if (strlen(ztest_opts
.zo_alt_ztest
) != 0) {
6121 if (ztest_opts
.zo_verbose
>= 1) {
6122 (void) printf("Executing older ztest for "
6123 "initialization: %s\n", ztest_opts
.zo_alt_ztest
);
6125 VERIFY(!exec_child(ztest_opts
.zo_alt_ztest
,
6126 ztest_opts
.zo_alt_libpath
, B_FALSE
, NULL
));
6128 VERIFY(!exec_child(NULL
, NULL
, B_FALSE
, NULL
));
6130 zs
->zs_do_init
= B_FALSE
;
6132 zs
->zs_proc_start
= gethrtime();
6133 zs
->zs_proc_stop
= zs
->zs_proc_start
+ ztest_opts
.zo_time
* NANOSEC
;
6135 for (int f
= 0; f
< ZTEST_FUNCS
; f
++) {
6136 zi
= &ztest_info
[f
];
6137 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6138 if (zs
->zs_proc_start
+ zi
->zi_interval
[0] > zs
->zs_proc_stop
)
6139 zc
->zc_next
= UINT64_MAX
;
6141 zc
->zc_next
= zs
->zs_proc_start
+
6142 ztest_random(2 * zi
->zi_interval
[0] + 1);
6146 * Run the tests in a loop. These tests include fault injection
6147 * to verify that self-healing data works, and forced crashes
6148 * to verify that we never lose on-disk consistency.
6150 while (gethrtime() < zs
->zs_proc_stop
) {
6155 * Initialize the workload counters for each function.
6157 for (int f
= 0; f
< ZTEST_FUNCS
; f
++) {
6158 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6163 /* Set the allocation switch size */
6164 zs
->zs_metaslab_df_alloc_threshold
=
6165 ztest_random(zs
->zs_metaslab_sz
/ 4) + 1;
6167 if (!hasalt
|| ztest_random(2) == 0) {
6168 if (hasalt
&& ztest_opts
.zo_verbose
>= 1) {
6169 (void) printf("Executing newer ztest: %s\n",
6173 killed
= exec_child(cmd
, NULL
, B_TRUE
, &status
);
6175 if (hasalt
&& ztest_opts
.zo_verbose
>= 1) {
6176 (void) printf("Executing older ztest: %s\n",
6177 ztest_opts
.zo_alt_ztest
);
6180 killed
= exec_child(ztest_opts
.zo_alt_ztest
,
6181 ztest_opts
.zo_alt_libpath
, B_TRUE
, &status
);
6188 if (ztest_opts
.zo_verbose
>= 1) {
6189 hrtime_t now
= gethrtime();
6191 now
= MIN(now
, zs
->zs_proc_stop
);
6192 print_time(zs
->zs_proc_stop
- now
, timebuf
);
6193 nicenum(zs
->zs_space
, numbuf
);
6195 (void) printf("Pass %3d, %8s, %3llu ENOSPC, "
6196 "%4.1f%% of %5s used, %3.0f%% done, %8s to go\n",
6198 WIFEXITED(status
) ? "Complete" : "SIGKILL",
6199 (u_longlong_t
)zs
->zs_enospc_count
,
6200 100.0 * zs
->zs_alloc
/ zs
->zs_space
,
6202 100.0 * (now
- zs
->zs_proc_start
) /
6203 (ztest_opts
.zo_time
* NANOSEC
), timebuf
);
6206 if (ztest_opts
.zo_verbose
>= 2) {
6207 (void) printf("\nWorkload summary:\n\n");
6208 (void) printf("%7s %9s %s\n",
6209 "Calls", "Time", "Function");
6210 (void) printf("%7s %9s %s\n",
6211 "-----", "----", "--------");
6212 for (int f
= 0; f
< ZTEST_FUNCS
; f
++) {
6215 zi
= &ztest_info
[f
];
6216 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6217 print_time(zc
->zc_time
, timebuf
);
6218 (void) dladdr((void *)zi
->zi_func
, &dli
);
6219 (void) printf("%7llu %9s %s\n",
6220 (u_longlong_t
)zc
->zc_count
, timebuf
,
6223 (void) printf("\n");
6227 * It's possible that we killed a child during a rename test,
6228 * in which case we'll have a 'ztest_tmp' pool lying around
6229 * instead of 'ztest'. Do a blind rename in case this happened.
6232 if (spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
) == 0) {
6233 spa_close(spa
, FTAG
);
6235 char tmpname
[MAXNAMELEN
];
6237 kernel_init(FREAD
| FWRITE
);
6238 (void) snprintf(tmpname
, sizeof (tmpname
), "%s_tmp",
6239 ztest_opts
.zo_pool
);
6240 (void) spa_rename(tmpname
, ztest_opts
.zo_pool
);
6244 ztest_run_zdb(ztest_opts
.zo_pool
);
6247 if (ztest_opts
.zo_verbose
>= 1) {
6249 (void) printf("%d runs of older ztest: %s\n", older
,
6250 ztest_opts
.zo_alt_ztest
);
6251 (void) printf("%d runs of newer ztest: %s\n", newer
,
6254 (void) printf("%d killed, %d completed, %.0f%% kill rate\n",
6255 kills
, iters
- kills
, (100.0 * kills
) / MAX(1, iters
));
6258 umem_free(cmd
, MAXNAMELEN
);