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.
26 * The objective of this program is to provide a DMU/ZAP/SPA stress test
27 * that runs entirely in userland, is easy to use, and easy to extend.
29 * The overall design of the ztest program is as follows:
31 * (1) For each major functional area (e.g. adding vdevs to a pool,
32 * creating and destroying datasets, reading and writing objects, etc)
33 * we have a simple routine to test that functionality. These
34 * individual routines do not have to do anything "stressful".
36 * (2) We turn these simple functionality tests into a stress test by
37 * running them all in parallel, with as many threads as desired,
38 * and spread across as many datasets, objects, and vdevs as desired.
40 * (3) While all this is happening, we inject faults into the pool to
41 * verify that self-healing data really works.
43 * (4) Every time we open a dataset, we change its checksum and compression
44 * functions. Thus even individual objects vary from block to block
45 * in which checksum they use and whether they're compressed.
47 * (5) To verify that we never lose on-disk consistency after a crash,
48 * we run the entire test in a child of the main process.
49 * At random times, the child self-immolates with a SIGKILL.
50 * This is the software equivalent of pulling the power cord.
51 * The parent then runs the test again, using the existing
52 * storage pool, as many times as desired.
54 * (6) To verify that we don't have future leaks or temporal incursions,
55 * many of the functional tests record the transaction group number
56 * as part of their data. When reading old data, they verify that
57 * the transaction group number is less than the current, open txg.
58 * If you add a new test, please do this if applicable.
60 * When run with no arguments, ztest runs for about five minutes and
61 * produces no output if successful. To get a little bit of information,
62 * specify -V. To get more information, specify -VV, and so on.
64 * To turn this into an overnight stress test, use -T to specify run time.
66 * You can ask more more vdevs [-v], datasets [-d], or threads [-t]
67 * to increase the pool capacity, fanout, and overall stress level.
69 * The -N(okill) option will suppress kills, so each child runs to completion.
70 * This can be useful when you're trying to distinguish temporal incursions
71 * from plain old race conditions.
74 #include <sys/zfs_context.h>
80 #include <sys/dmu_objset.h>
86 #include <sys/resource.h>
89 #include <sys/zil_impl.h>
90 #include <sys/vdev_impl.h>
91 #include <sys/vdev_file.h>
92 #include <sys/spa_impl.h>
93 #include <sys/metaslab_impl.h>
94 #include <sys/dsl_prop.h>
95 #include <sys/dsl_dataset.h>
96 #include <sys/dsl_scan.h>
97 #include <sys/zio_checksum.h>
98 #include <sys/refcount.h>
100 #include <stdio_ext.h>
108 #include <sys/fs/zfs.h>
109 #include <libnvpair.h>
111 static char cmdname
[] = "ztest";
112 static char *zopt_pool
= cmdname
;
114 static uint64_t zopt_vdevs
= 5;
115 static uint64_t zopt_vdevtime
;
116 static int zopt_ashift
= SPA_MINBLOCKSHIFT
;
117 static int zopt_mirrors
= 2;
118 static int zopt_raidz
= 4;
119 static int zopt_raidz_parity
= 1;
120 static size_t zopt_vdev_size
= SPA_MINDEVSIZE
;
121 static int zopt_datasets
= 7;
122 static int zopt_threads
= 23;
123 static uint64_t zopt_passtime
= 60; /* 60 seconds */
124 static uint64_t zopt_killrate
= 70; /* 70% kill rate */
125 static int zopt_verbose
= 0;
126 static int zopt_init
= 1;
127 static char *zopt_dir
= "/tmp";
128 static uint64_t zopt_time
= 300; /* 5 minutes */
129 static uint64_t zopt_maxloops
= 50; /* max loops during spa_freeze() */
131 #define BT_MAGIC 0x123456789abcdefULL
132 #define MAXFAULTS() (MAX(zs->zs_mirrors, 1) * (zopt_raidz_parity + 1) - 1)
136 ZTEST_IO_WRITE_PATTERN
,
137 ZTEST_IO_WRITE_ZEROES
,
143 typedef struct ztest_block_tag
{
153 typedef struct bufwad
{
160 * XXX -- fix zfs range locks to be generic so we can use them here.
182 #define ZTEST_RANGE_LOCKS 64
183 #define ZTEST_OBJECT_LOCKS 64
186 * Object descriptor. Used as a template for object lookup/create/remove.
188 typedef struct ztest_od
{
191 dmu_object_type_t od_type
;
192 dmu_object_type_t od_crtype
;
193 uint64_t od_blocksize
;
194 uint64_t od_crblocksize
;
197 char od_name
[MAXNAMELEN
];
203 typedef struct ztest_ds
{
207 ztest_od_t
*zd_od
; /* debugging aid */
208 char zd_name
[MAXNAMELEN
];
209 mutex_t zd_dirobj_lock
;
210 rll_t zd_object_lock
[ZTEST_OBJECT_LOCKS
];
211 rll_t zd_range_lock
[ZTEST_RANGE_LOCKS
];
215 * Per-iteration state.
217 typedef void ztest_func_t(ztest_ds_t
*zd
, uint64_t id
);
219 typedef struct ztest_info
{
220 ztest_func_t
*zi_func
; /* test function */
221 uint64_t zi_iters
; /* iterations per execution */
222 uint64_t *zi_interval
; /* execute every <interval> seconds */
223 uint64_t zi_call_count
; /* per-pass count */
224 uint64_t zi_call_time
; /* per-pass time */
225 uint64_t zi_call_next
; /* next time to call this function */
229 * Note: these aren't static because we want dladdr() to work.
231 ztest_func_t ztest_dmu_read_write
;
232 ztest_func_t ztest_dmu_write_parallel
;
233 ztest_func_t ztest_dmu_object_alloc_free
;
234 ztest_func_t ztest_dmu_commit_callbacks
;
235 ztest_func_t ztest_zap
;
236 ztest_func_t ztest_zap_parallel
;
237 ztest_func_t ztest_zil_commit
;
238 ztest_func_t ztest_dmu_read_write_zcopy
;
239 ztest_func_t ztest_dmu_objset_create_destroy
;
240 ztest_func_t ztest_dmu_prealloc
;
241 ztest_func_t ztest_fzap
;
242 ztest_func_t ztest_dmu_snapshot_create_destroy
;
243 ztest_func_t ztest_dsl_prop_get_set
;
244 ztest_func_t ztest_spa_prop_get_set
;
245 ztest_func_t ztest_spa_create_destroy
;
246 ztest_func_t ztest_fault_inject
;
247 ztest_func_t ztest_ddt_repair
;
248 ztest_func_t ztest_dmu_snapshot_hold
;
249 ztest_func_t ztest_spa_rename
;
250 ztest_func_t ztest_scrub
;
251 ztest_func_t ztest_dsl_dataset_promote_busy
;
252 ztest_func_t ztest_vdev_attach_detach
;
253 ztest_func_t ztest_vdev_LUN_growth
;
254 ztest_func_t ztest_vdev_add_remove
;
255 ztest_func_t ztest_vdev_aux_add_remove
;
256 ztest_func_t ztest_split_pool
;
258 uint64_t zopt_always
= 0ULL * NANOSEC
; /* all the time */
259 uint64_t zopt_incessant
= 1ULL * NANOSEC
/ 10; /* every 1/10 second */
260 uint64_t zopt_often
= 1ULL * NANOSEC
; /* every second */
261 uint64_t zopt_sometimes
= 10ULL * NANOSEC
; /* every 10 seconds */
262 uint64_t zopt_rarely
= 60ULL * NANOSEC
; /* every 60 seconds */
264 ztest_info_t ztest_info
[] = {
265 { ztest_dmu_read_write
, 1, &zopt_always
},
266 { ztest_dmu_write_parallel
, 10, &zopt_always
},
267 { ztest_dmu_object_alloc_free
, 1, &zopt_always
},
268 { ztest_dmu_commit_callbacks
, 1, &zopt_always
},
269 { ztest_zap
, 30, &zopt_always
},
270 { ztest_zap_parallel
, 100, &zopt_always
},
271 { ztest_split_pool
, 1, &zopt_always
},
272 { ztest_zil_commit
, 1, &zopt_incessant
},
273 { ztest_dmu_read_write_zcopy
, 1, &zopt_often
},
274 { ztest_dmu_objset_create_destroy
, 1, &zopt_often
},
275 { ztest_dsl_prop_get_set
, 1, &zopt_often
},
276 { ztest_spa_prop_get_set
, 1, &zopt_sometimes
},
278 { ztest_dmu_prealloc
, 1, &zopt_sometimes
},
280 { ztest_fzap
, 1, &zopt_sometimes
},
281 { ztest_dmu_snapshot_create_destroy
, 1, &zopt_sometimes
},
282 { ztest_spa_create_destroy
, 1, &zopt_sometimes
},
283 { ztest_fault_inject
, 1, &zopt_sometimes
},
284 { ztest_ddt_repair
, 1, &zopt_sometimes
},
285 { ztest_dmu_snapshot_hold
, 1, &zopt_sometimes
},
286 { ztest_spa_rename
, 1, &zopt_rarely
},
287 { ztest_scrub
, 1, &zopt_rarely
},
288 { ztest_dsl_dataset_promote_busy
, 1, &zopt_rarely
},
289 { ztest_vdev_attach_detach
, 1, &zopt_rarely
},
290 { ztest_vdev_LUN_growth
, 1, &zopt_rarely
},
291 { ztest_vdev_add_remove
, 1, &zopt_vdevtime
},
292 { ztest_vdev_aux_add_remove
, 1, &zopt_vdevtime
},
295 #define ZTEST_FUNCS (sizeof (ztest_info) / sizeof (ztest_info_t))
298 * The following struct is used to hold a list of uncalled commit callbacks.
299 * The callbacks are ordered by txg number.
301 typedef struct ztest_cb_list
{
302 mutex_t zcl_callbacks_lock
;
303 list_t zcl_callbacks
;
307 * Stuff we need to share writably between parent and child.
309 typedef struct ztest_shared
{
312 hrtime_t zs_proc_start
;
313 hrtime_t zs_proc_stop
;
314 hrtime_t zs_thread_start
;
315 hrtime_t zs_thread_stop
;
316 hrtime_t zs_thread_kill
;
317 uint64_t zs_enospc_count
;
318 uint64_t zs_vdev_next_leaf
;
319 uint64_t zs_vdev_aux
;
322 mutex_t zs_vdev_lock
;
323 rwlock_t zs_name_lock
;
324 ztest_info_t zs_info
[ZTEST_FUNCS
];
330 #define ID_PARALLEL -1ULL
332 static char ztest_dev_template
[] = "%s/%s.%llua";
333 static char ztest_aux_template
[] = "%s/%s.%s.%llu";
334 ztest_shared_t
*ztest_shared
;
337 static int ztest_random_fd
;
338 static int ztest_dump_core
= 1;
340 static boolean_t ztest_exiting
;
342 /* Global commit callback list */
343 static ztest_cb_list_t zcl
;
344 /* Commit cb delay */
345 static uint64_t zc_min_txg_delay
= UINT64_MAX
;
346 static int zc_cb_counter
= 0;
349 * Minimum number of commit callbacks that need to be registered for us to check
350 * whether the minimum txg delay is acceptable.
352 #define ZTEST_COMMIT_CB_MIN_REG 100
355 * If a number of txgs equal to this threshold have been created after a commit
356 * callback has been registered but not called, then we assume there is an
357 * implementation bug.
359 #define ZTEST_COMMIT_CB_THRESH (TXG_CONCURRENT_STATES + 1000)
361 extern uint64_t metaslab_gang_bang
;
362 extern uint64_t metaslab_df_alloc_threshold
;
363 static uint64_t metaslab_sz
;
366 ZTEST_META_DNODE
= 0,
371 static void usage(boolean_t
) __NORETURN
;
374 * These libumem hooks provide a reasonable set of defaults for the allocator's
375 * debugging facilities.
378 _umem_debug_init(void)
380 return ("default,verbose"); /* $UMEM_DEBUG setting */
384 _umem_logging_init(void)
386 return ("fail,contents"); /* $UMEM_LOGGING setting */
389 #define FATAL_MSG_SZ 1024
394 fatal(int do_perror
, char *message
, ...)
397 int save_errno
= errno
;
398 char buf
[FATAL_MSG_SZ
];
400 (void) fflush(stdout
);
402 va_start(args
, message
);
403 (void) sprintf(buf
, "ztest: ");
405 (void) vsprintf(buf
+ strlen(buf
), message
, args
);
408 (void) snprintf(buf
+ strlen(buf
), FATAL_MSG_SZ
- strlen(buf
),
409 ": %s", strerror(save_errno
));
411 (void) fprintf(stderr
, "%s\n", buf
);
412 fatal_msg
= buf
; /* to ease debugging */
419 str2shift(const char *buf
)
421 const char *ends
= "BKMGTPEZ";
426 for (i
= 0; i
< strlen(ends
); i
++) {
427 if (toupper(buf
[0]) == ends
[i
])
430 if (i
== strlen(ends
)) {
431 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n",
435 if (buf
[1] == '\0' || (toupper(buf
[1]) == 'B' && buf
[2] == '\0')) {
438 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n", buf
);
444 nicenumtoull(const char *buf
)
449 val
= strtoull(buf
, &end
, 0);
451 (void) fprintf(stderr
, "ztest: bad numeric value: %s\n", buf
);
453 } else if (end
[0] == '.') {
454 double fval
= strtod(buf
, &end
);
455 fval
*= pow(2, str2shift(end
));
456 if (fval
> UINT64_MAX
) {
457 (void) fprintf(stderr
, "ztest: value too large: %s\n",
461 val
= (uint64_t)fval
;
463 int shift
= str2shift(end
);
464 if (shift
>= 64 || (val
<< shift
) >> shift
!= val
) {
465 (void) fprintf(stderr
, "ztest: value too large: %s\n",
475 usage(boolean_t requested
)
477 char nice_vdev_size
[10];
478 char nice_gang_bang
[10];
479 FILE *fp
= requested
? stdout
: stderr
;
481 nicenum(zopt_vdev_size
, nice_vdev_size
);
482 nicenum(metaslab_gang_bang
, nice_gang_bang
);
484 (void) fprintf(fp
, "Usage: %s\n"
485 "\t[-v vdevs (default: %llu)]\n"
486 "\t[-s size_of_each_vdev (default: %s)]\n"
487 "\t[-a alignment_shift (default: %d)] use 0 for random\n"
488 "\t[-m mirror_copies (default: %d)]\n"
489 "\t[-r raidz_disks (default: %d)]\n"
490 "\t[-R raidz_parity (default: %d)]\n"
491 "\t[-d datasets (default: %d)]\n"
492 "\t[-t threads (default: %d)]\n"
493 "\t[-g gang_block_threshold (default: %s)]\n"
494 "\t[-i init_count (default: %d)] initialize pool i times\n"
495 "\t[-k kill_percentage (default: %llu%%)]\n"
496 "\t[-p pool_name (default: %s)]\n"
497 "\t[-f dir (default: %s)] file directory for vdev files\n"
498 "\t[-V] verbose (use multiple times for ever more blather)\n"
499 "\t[-E] use existing pool instead of creating new one\n"
500 "\t[-T time (default: %llu sec)] total run time\n"
501 "\t[-F freezeloops (default: %llu)] max loops in spa_freeze()\n"
502 "\t[-P passtime (default: %llu sec)] time per pass\n"
503 "\t[-h] (print help)\n"
506 (u_longlong_t
)zopt_vdevs
, /* -v */
507 nice_vdev_size
, /* -s */
508 zopt_ashift
, /* -a */
509 zopt_mirrors
, /* -m */
511 zopt_raidz_parity
, /* -R */
512 zopt_datasets
, /* -d */
513 zopt_threads
, /* -t */
514 nice_gang_bang
, /* -g */
516 (u_longlong_t
)zopt_killrate
, /* -k */
519 (u_longlong_t
)zopt_time
, /* -T */
520 (u_longlong_t
)zopt_maxloops
, /* -F */
521 (u_longlong_t
)zopt_passtime
); /* -P */
522 exit(requested
? 0 : 1);
526 process_options(int argc
, char **argv
)
531 /* By default, test gang blocks for blocks 32K and greater */
532 metaslab_gang_bang
= 32 << 10;
534 while ((opt
= getopt(argc
, argv
,
535 "v:s:a:m:r:R:d:t:g:i:k:p:f:VET:P:hF:")) != EOF
) {
552 value
= nicenumtoull(optarg
);
559 zopt_vdev_size
= MAX(SPA_MINDEVSIZE
, value
);
565 zopt_mirrors
= value
;
568 zopt_raidz
= MAX(1, value
);
571 zopt_raidz_parity
= MIN(MAX(value
, 1), 3);
574 zopt_datasets
= MAX(1, value
);
577 zopt_threads
= MAX(1, value
);
580 metaslab_gang_bang
= MAX(SPA_MINBLOCKSIZE
<< 1, value
);
586 zopt_killrate
= value
;
589 zopt_pool
= strdup(optarg
);
592 zopt_dir
= strdup(optarg
);
604 zopt_passtime
= MAX(1, value
);
607 zopt_maxloops
= MAX(1, value
);
619 zopt_raidz_parity
= MIN(zopt_raidz_parity
, zopt_raidz
- 1);
621 zopt_vdevtime
= (zopt_vdevs
> 0 ? zopt_time
* NANOSEC
/ zopt_vdevs
:
626 ztest_kill(ztest_shared_t
*zs
)
628 zs
->zs_alloc
= metaslab_class_get_alloc(spa_normal_class(zs
->zs_spa
));
629 zs
->zs_space
= metaslab_class_get_space(spa_normal_class(zs
->zs_spa
));
630 (void) kill(getpid(), SIGKILL
);
634 ztest_random(uint64_t range
)
641 if (read(ztest_random_fd
, &r
, sizeof (r
)) != sizeof (r
))
642 fatal(1, "short read from /dev/urandom");
649 ztest_record_enospc(const char *s
)
651 ztest_shared
->zs_enospc_count
++;
655 ztest_get_ashift(void)
657 if (zopt_ashift
== 0)
658 return (SPA_MINBLOCKSHIFT
+ ztest_random(3));
659 return (zopt_ashift
);
663 make_vdev_file(char *path
, char *aux
, size_t size
, uint64_t ashift
)
665 char pathbuf
[MAXPATHLEN
];
670 ashift
= ztest_get_ashift();
676 vdev
= ztest_shared
->zs_vdev_aux
;
677 (void) sprintf(path
, ztest_aux_template
,
678 zopt_dir
, zopt_pool
, aux
, vdev
);
680 vdev
= ztest_shared
->zs_vdev_next_leaf
++;
681 (void) sprintf(path
, ztest_dev_template
,
682 zopt_dir
, zopt_pool
, vdev
);
687 int fd
= open(path
, O_RDWR
| O_CREAT
| O_TRUNC
, 0666);
689 fatal(1, "can't open %s", path
);
690 if (ftruncate(fd
, size
) != 0)
691 fatal(1, "can't ftruncate %s", path
);
695 VERIFY(nvlist_alloc(&file
, NV_UNIQUE_NAME
, 0) == 0);
696 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_FILE
) == 0);
697 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_PATH
, path
) == 0);
698 VERIFY(nvlist_add_uint64(file
, ZPOOL_CONFIG_ASHIFT
, ashift
) == 0);
704 make_vdev_raidz(char *path
, char *aux
, size_t size
, uint64_t ashift
, int r
)
706 nvlist_t
*raidz
, **child
;
710 return (make_vdev_file(path
, aux
, size
, ashift
));
711 child
= umem_alloc(r
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
713 for (c
= 0; c
< r
; c
++)
714 child
[c
] = make_vdev_file(path
, aux
, size
, ashift
);
716 VERIFY(nvlist_alloc(&raidz
, NV_UNIQUE_NAME
, 0) == 0);
717 VERIFY(nvlist_add_string(raidz
, ZPOOL_CONFIG_TYPE
,
718 VDEV_TYPE_RAIDZ
) == 0);
719 VERIFY(nvlist_add_uint64(raidz
, ZPOOL_CONFIG_NPARITY
,
720 zopt_raidz_parity
) == 0);
721 VERIFY(nvlist_add_nvlist_array(raidz
, ZPOOL_CONFIG_CHILDREN
,
724 for (c
= 0; c
< r
; c
++)
725 nvlist_free(child
[c
]);
727 umem_free(child
, r
* sizeof (nvlist_t
*));
733 make_vdev_mirror(char *path
, char *aux
, size_t size
, uint64_t ashift
,
736 nvlist_t
*mirror
, **child
;
740 return (make_vdev_raidz(path
, aux
, size
, ashift
, r
));
742 child
= umem_alloc(m
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
744 for (c
= 0; c
< m
; c
++)
745 child
[c
] = make_vdev_raidz(path
, aux
, size
, ashift
, r
);
747 VERIFY(nvlist_alloc(&mirror
, NV_UNIQUE_NAME
, 0) == 0);
748 VERIFY(nvlist_add_string(mirror
, ZPOOL_CONFIG_TYPE
,
749 VDEV_TYPE_MIRROR
) == 0);
750 VERIFY(nvlist_add_nvlist_array(mirror
, ZPOOL_CONFIG_CHILDREN
,
753 for (c
= 0; c
< m
; c
++)
754 nvlist_free(child
[c
]);
756 umem_free(child
, m
* sizeof (nvlist_t
*));
762 make_vdev_root(char *path
, char *aux
, size_t size
, uint64_t ashift
,
763 int log
, int r
, int m
, int t
)
765 nvlist_t
*root
, **child
;
770 child
= umem_alloc(t
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
772 for (c
= 0; c
< t
; c
++) {
773 child
[c
] = make_vdev_mirror(path
, aux
, size
, ashift
, r
, m
);
774 VERIFY(nvlist_add_uint64(child
[c
], ZPOOL_CONFIG_IS_LOG
,
778 VERIFY(nvlist_alloc(&root
, NV_UNIQUE_NAME
, 0) == 0);
779 VERIFY(nvlist_add_string(root
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_ROOT
) == 0);
780 VERIFY(nvlist_add_nvlist_array(root
, aux
? aux
: ZPOOL_CONFIG_CHILDREN
,
783 for (c
= 0; c
< t
; c
++)
784 nvlist_free(child
[c
]);
786 umem_free(child
, t
* sizeof (nvlist_t
*));
792 ztest_random_blocksize(void)
794 return (1 << (SPA_MINBLOCKSHIFT
+
795 ztest_random(SPA_MAXBLOCKSHIFT
- SPA_MINBLOCKSHIFT
+ 1)));
799 ztest_random_ibshift(void)
801 return (DN_MIN_INDBLKSHIFT
+
802 ztest_random(DN_MAX_INDBLKSHIFT
- DN_MIN_INDBLKSHIFT
+ 1));
806 ztest_random_vdev_top(spa_t
*spa
, boolean_t log_ok
)
809 vdev_t
*rvd
= spa
->spa_root_vdev
;
812 ASSERT(spa_config_held(spa
, SCL_ALL
, RW_READER
) != 0);
815 top
= ztest_random(rvd
->vdev_children
);
816 tvd
= rvd
->vdev_child
[top
];
817 } while (tvd
->vdev_ishole
|| (tvd
->vdev_islog
&& !log_ok
) ||
818 tvd
->vdev_mg
== NULL
|| tvd
->vdev_mg
->mg_class
== NULL
);
824 ztest_random_dsl_prop(zfs_prop_t prop
)
829 value
= zfs_prop_random_value(prop
, ztest_random(-1ULL));
830 } while (prop
== ZFS_PROP_CHECKSUM
&& value
== ZIO_CHECKSUM_OFF
);
836 ztest_dsl_prop_set_uint64(char *osname
, zfs_prop_t prop
, uint64_t value
,
839 const char *propname
= zfs_prop_to_name(prop
);
841 char setpoint
[MAXPATHLEN
];
845 error
= dsl_prop_set(osname
, propname
,
846 (inherit
? ZPROP_SRC_NONE
: ZPROP_SRC_LOCAL
),
847 sizeof (value
), 1, &value
);
849 if (error
== ENOSPC
) {
850 ztest_record_enospc(FTAG
);
853 ASSERT3U(error
, ==, 0);
855 VERIFY3U(dsl_prop_get(osname
, propname
, sizeof (curval
),
856 1, &curval
, setpoint
), ==, 0);
858 if (zopt_verbose
>= 6) {
859 VERIFY(zfs_prop_index_to_string(prop
, curval
, &valname
) == 0);
860 (void) printf("%s %s = %s at '%s'\n",
861 osname
, propname
, valname
, setpoint
);
868 ztest_spa_prop_set_uint64(ztest_shared_t
*zs
, zpool_prop_t prop
, uint64_t value
)
870 spa_t
*spa
= zs
->zs_spa
;
871 nvlist_t
*props
= NULL
;
874 VERIFY(nvlist_alloc(&props
, NV_UNIQUE_NAME
, 0) == 0);
875 VERIFY(nvlist_add_uint64(props
, zpool_prop_to_name(prop
), value
) == 0);
877 error
= spa_prop_set(spa
, props
);
881 if (error
== ENOSPC
) {
882 ztest_record_enospc(FTAG
);
885 ASSERT3U(error
, ==, 0);
891 ztest_rll_init(rll_t
*rll
)
893 rll
->rll_writer
= NULL
;
894 rll
->rll_readers
= 0;
895 VERIFY(_mutex_init(&rll
->rll_lock
, USYNC_THREAD
, NULL
) == 0);
896 VERIFY(cond_init(&rll
->rll_cv
, USYNC_THREAD
, NULL
) == 0);
900 ztest_rll_destroy(rll_t
*rll
)
902 ASSERT(rll
->rll_writer
== NULL
);
903 ASSERT(rll
->rll_readers
== 0);
904 VERIFY(_mutex_destroy(&rll
->rll_lock
) == 0);
905 VERIFY(cond_destroy(&rll
->rll_cv
) == 0);
909 ztest_rll_lock(rll_t
*rll
, rl_type_t type
)
911 VERIFY(mutex_lock(&rll
->rll_lock
) == 0);
913 if (type
== RL_READER
) {
914 while (rll
->rll_writer
!= NULL
)
915 (void) cond_wait(&rll
->rll_cv
, &rll
->rll_lock
);
918 while (rll
->rll_writer
!= NULL
|| rll
->rll_readers
)
919 (void) cond_wait(&rll
->rll_cv
, &rll
->rll_lock
);
920 rll
->rll_writer
= curthread
;
923 VERIFY(mutex_unlock(&rll
->rll_lock
) == 0);
927 ztest_rll_unlock(rll_t
*rll
)
929 VERIFY(mutex_lock(&rll
->rll_lock
) == 0);
931 if (rll
->rll_writer
) {
932 ASSERT(rll
->rll_readers
== 0);
933 rll
->rll_writer
= NULL
;
935 ASSERT(rll
->rll_readers
!= 0);
936 ASSERT(rll
->rll_writer
== NULL
);
940 if (rll
->rll_writer
== NULL
&& rll
->rll_readers
== 0)
941 VERIFY(cond_broadcast(&rll
->rll_cv
) == 0);
943 VERIFY(mutex_unlock(&rll
->rll_lock
) == 0);
947 ztest_object_lock(ztest_ds_t
*zd
, uint64_t object
, rl_type_t type
)
949 rll_t
*rll
= &zd
->zd_object_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
951 ztest_rll_lock(rll
, type
);
955 ztest_object_unlock(ztest_ds_t
*zd
, uint64_t object
)
957 rll_t
*rll
= &zd
->zd_object_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
959 ztest_rll_unlock(rll
);
963 ztest_range_lock(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
,
964 uint64_t size
, rl_type_t type
)
966 uint64_t hash
= object
^ (offset
% (ZTEST_RANGE_LOCKS
+ 1));
967 rll_t
*rll
= &zd
->zd_range_lock
[hash
& (ZTEST_RANGE_LOCKS
- 1)];
970 rl
= umem_alloc(sizeof (*rl
), UMEM_NOFAIL
);
971 rl
->rl_object
= object
;
972 rl
->rl_offset
= offset
;
976 ztest_rll_lock(rll
, type
);
982 ztest_range_unlock(rl_t
*rl
)
984 rll_t
*rll
= rl
->rl_lock
;
986 ztest_rll_unlock(rll
);
988 umem_free(rl
, sizeof (*rl
));
992 ztest_zd_init(ztest_ds_t
*zd
, objset_t
*os
)
995 zd
->zd_zilog
= dmu_objset_zil(os
);
997 dmu_objset_name(os
, zd
->zd_name
);
1000 VERIFY(_mutex_init(&zd
->zd_dirobj_lock
, USYNC_THREAD
, NULL
) == 0);
1002 for (l
= 0; l
< ZTEST_OBJECT_LOCKS
; l
++)
1003 ztest_rll_init(&zd
->zd_object_lock
[l
]);
1005 for (l
= 0; l
< ZTEST_RANGE_LOCKS
; l
++)
1006 ztest_rll_init(&zd
->zd_range_lock
[l
]);
1010 ztest_zd_fini(ztest_ds_t
*zd
)
1014 VERIFY(_mutex_destroy(&zd
->zd_dirobj_lock
) == 0);
1016 for (l
= 0; l
< ZTEST_OBJECT_LOCKS
; l
++)
1017 ztest_rll_destroy(&zd
->zd_object_lock
[l
]);
1019 for (l
= 0; l
< ZTEST_RANGE_LOCKS
; l
++)
1020 ztest_rll_destroy(&zd
->zd_range_lock
[l
]);
1023 #define TXG_MIGHTWAIT (ztest_random(10) == 0 ? TXG_NOWAIT : TXG_WAIT)
1026 ztest_tx_assign(dmu_tx_t
*tx
, uint64_t txg_how
, const char *tag
)
1032 * Attempt to assign tx to some transaction group.
1034 error
= dmu_tx_assign(tx
, txg_how
);
1036 if (error
== ERESTART
) {
1037 ASSERT(txg_how
== TXG_NOWAIT
);
1040 ASSERT3U(error
, ==, ENOSPC
);
1041 ztest_record_enospc(tag
);
1046 txg
= dmu_tx_get_txg(tx
);
1052 ztest_pattern_set(void *buf
, uint64_t size
, uint64_t value
)
1055 uint64_t *ip_end
= (uint64_t *)((uintptr_t)buf
+ (uintptr_t)size
);
1063 ztest_pattern_match(void *buf
, uint64_t size
, uint64_t value
)
1066 uint64_t *ip_end
= (uint64_t *)((uintptr_t)buf
+ (uintptr_t)size
);
1070 diff
|= (value
- *ip
++);
1077 ztest_bt_generate(ztest_block_tag_t
*bt
, objset_t
*os
, uint64_t object
,
1078 uint64_t offset
, uint64_t gen
, uint64_t txg
, uint64_t crtxg
)
1080 bt
->bt_magic
= BT_MAGIC
;
1081 bt
->bt_objset
= dmu_objset_id(os
);
1082 bt
->bt_object
= object
;
1083 bt
->bt_offset
= offset
;
1086 bt
->bt_crtxg
= crtxg
;
1090 ztest_bt_verify(ztest_block_tag_t
*bt
, objset_t
*os
, uint64_t object
,
1091 uint64_t offset
, uint64_t gen
, uint64_t txg
, uint64_t crtxg
)
1093 ASSERT(bt
->bt_magic
== BT_MAGIC
);
1094 ASSERT(bt
->bt_objset
== dmu_objset_id(os
));
1095 ASSERT(bt
->bt_object
== object
);
1096 ASSERT(bt
->bt_offset
== offset
);
1097 ASSERT(bt
->bt_gen
<= gen
);
1098 ASSERT(bt
->bt_txg
<= txg
);
1099 ASSERT(bt
->bt_crtxg
== crtxg
);
1102 static ztest_block_tag_t
*
1103 ztest_bt_bonus(dmu_buf_t
*db
)
1105 dmu_object_info_t doi
;
1106 ztest_block_tag_t
*bt
;
1108 dmu_object_info_from_db(db
, &doi
);
1109 ASSERT3U(doi
.doi_bonus_size
, <=, db
->db_size
);
1110 ASSERT3U(doi
.doi_bonus_size
, >=, sizeof (*bt
));
1111 bt
= (void *)((char *)db
->db_data
+ doi
.doi_bonus_size
- sizeof (*bt
));
1120 #define lrz_type lr_mode
1121 #define lrz_blocksize lr_uid
1122 #define lrz_ibshift lr_gid
1123 #define lrz_bonustype lr_rdev
1124 #define lrz_bonuslen lr_crtime[1]
1127 ztest_log_create(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_create_t
*lr
)
1129 char *name
= (void *)(lr
+ 1); /* name follows lr */
1130 size_t namesize
= strlen(name
) + 1;
1133 if (zil_replaying(zd
->zd_zilog
, tx
))
1136 itx
= zil_itx_create(TX_CREATE
, sizeof (*lr
) + namesize
);
1137 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1138 sizeof (*lr
) + namesize
- sizeof (lr_t
));
1140 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1144 ztest_log_remove(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_remove_t
*lr
, uint64_t object
)
1146 char *name
= (void *)(lr
+ 1); /* name follows lr */
1147 size_t namesize
= strlen(name
) + 1;
1150 if (zil_replaying(zd
->zd_zilog
, tx
))
1153 itx
= zil_itx_create(TX_REMOVE
, sizeof (*lr
) + namesize
);
1154 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1155 sizeof (*lr
) + namesize
- sizeof (lr_t
));
1157 itx
->itx_oid
= object
;
1158 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1162 ztest_log_write(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_write_t
*lr
)
1165 itx_wr_state_t write_state
= ztest_random(WR_NUM_STATES
);
1167 if (zil_replaying(zd
->zd_zilog
, tx
))
1170 if (lr
->lr_length
> ZIL_MAX_LOG_DATA
)
1171 write_state
= WR_INDIRECT
;
1173 itx
= zil_itx_create(TX_WRITE
,
1174 sizeof (*lr
) + (write_state
== WR_COPIED
? lr
->lr_length
: 0));
1176 if (write_state
== WR_COPIED
&&
1177 dmu_read(zd
->zd_os
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
,
1178 ((lr_write_t
*)&itx
->itx_lr
) + 1, DMU_READ_NO_PREFETCH
) != 0) {
1179 zil_itx_destroy(itx
);
1180 itx
= zil_itx_create(TX_WRITE
, sizeof (*lr
));
1181 write_state
= WR_NEED_COPY
;
1183 itx
->itx_private
= zd
;
1184 itx
->itx_wr_state
= write_state
;
1185 itx
->itx_sync
= (ztest_random(8) == 0);
1186 itx
->itx_sod
+= (write_state
== WR_NEED_COPY
? lr
->lr_length
: 0);
1188 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1189 sizeof (*lr
) - sizeof (lr_t
));
1191 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1195 ztest_log_truncate(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_truncate_t
*lr
)
1199 if (zil_replaying(zd
->zd_zilog
, tx
))
1202 itx
= zil_itx_create(TX_TRUNCATE
, sizeof (*lr
));
1203 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1204 sizeof (*lr
) - sizeof (lr_t
));
1206 itx
->itx_sync
= B_FALSE
;
1207 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1211 ztest_log_setattr(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_setattr_t
*lr
)
1215 if (zil_replaying(zd
->zd_zilog
, tx
))
1218 itx
= zil_itx_create(TX_SETATTR
, sizeof (*lr
));
1219 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1220 sizeof (*lr
) - sizeof (lr_t
));
1222 itx
->itx_sync
= B_FALSE
;
1223 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1230 ztest_replay_create(ztest_ds_t
*zd
, lr_create_t
*lr
, boolean_t byteswap
)
1232 char *name
= (void *)(lr
+ 1); /* name follows lr */
1233 objset_t
*os
= zd
->zd_os
;
1234 ztest_block_tag_t
*bbt
;
1241 byteswap_uint64_array(lr
, sizeof (*lr
));
1243 ASSERT(lr
->lr_doid
== ZTEST_DIROBJ
);
1244 ASSERT(name
[0] != '\0');
1246 tx
= dmu_tx_create(os
);
1248 dmu_tx_hold_zap(tx
, lr
->lr_doid
, B_TRUE
, name
);
1250 if (lr
->lrz_type
== DMU_OT_ZAP_OTHER
) {
1251 dmu_tx_hold_zap(tx
, DMU_NEW_OBJECT
, B_TRUE
, NULL
);
1253 dmu_tx_hold_bonus(tx
, DMU_NEW_OBJECT
);
1256 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1260 ASSERT(dmu_objset_zil(os
)->zl_replay
== !!lr
->lr_foid
);
1262 if (lr
->lrz_type
== DMU_OT_ZAP_OTHER
) {
1263 if (lr
->lr_foid
== 0) {
1264 lr
->lr_foid
= zap_create(os
,
1265 lr
->lrz_type
, lr
->lrz_bonustype
,
1266 lr
->lrz_bonuslen
, tx
);
1268 error
= zap_create_claim(os
, lr
->lr_foid
,
1269 lr
->lrz_type
, lr
->lrz_bonustype
,
1270 lr
->lrz_bonuslen
, tx
);
1273 if (lr
->lr_foid
== 0) {
1274 lr
->lr_foid
= dmu_object_alloc(os
,
1275 lr
->lrz_type
, 0, lr
->lrz_bonustype
,
1276 lr
->lrz_bonuslen
, tx
);
1278 error
= dmu_object_claim(os
, lr
->lr_foid
,
1279 lr
->lrz_type
, 0, lr
->lrz_bonustype
,
1280 lr
->lrz_bonuslen
, tx
);
1285 ASSERT3U(error
, ==, EEXIST
);
1286 ASSERT(zd
->zd_zilog
->zl_replay
);
1291 ASSERT(lr
->lr_foid
!= 0);
1293 if (lr
->lrz_type
!= DMU_OT_ZAP_OTHER
)
1294 VERIFY3U(0, ==, dmu_object_set_blocksize(os
, lr
->lr_foid
,
1295 lr
->lrz_blocksize
, lr
->lrz_ibshift
, tx
));
1297 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1298 bbt
= ztest_bt_bonus(db
);
1299 dmu_buf_will_dirty(db
, tx
);
1300 ztest_bt_generate(bbt
, os
, lr
->lr_foid
, -1ULL, lr
->lr_gen
, txg
, txg
);
1301 dmu_buf_rele(db
, FTAG
);
1303 VERIFY3U(0, ==, zap_add(os
, lr
->lr_doid
, name
, sizeof (uint64_t), 1,
1306 (void) ztest_log_create(zd
, tx
, lr
);
1314 ztest_replay_remove(ztest_ds_t
*zd
, lr_remove_t
*lr
, boolean_t byteswap
)
1316 char *name
= (void *)(lr
+ 1); /* name follows lr */
1317 objset_t
*os
= zd
->zd_os
;
1318 dmu_object_info_t doi
;
1320 uint64_t object
, txg
;
1323 byteswap_uint64_array(lr
, sizeof (*lr
));
1325 ASSERT(lr
->lr_doid
== ZTEST_DIROBJ
);
1326 ASSERT(name
[0] != '\0');
1329 zap_lookup(os
, lr
->lr_doid
, name
, sizeof (object
), 1, &object
));
1330 ASSERT(object
!= 0);
1332 ztest_object_lock(zd
, object
, RL_WRITER
);
1334 VERIFY3U(0, ==, dmu_object_info(os
, object
, &doi
));
1336 tx
= dmu_tx_create(os
);
1338 dmu_tx_hold_zap(tx
, lr
->lr_doid
, B_FALSE
, name
);
1339 dmu_tx_hold_free(tx
, object
, 0, DMU_OBJECT_END
);
1341 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1343 ztest_object_unlock(zd
, object
);
1347 if (doi
.doi_type
== DMU_OT_ZAP_OTHER
) {
1348 VERIFY3U(0, ==, zap_destroy(os
, object
, tx
));
1350 VERIFY3U(0, ==, dmu_object_free(os
, object
, tx
));
1353 VERIFY3U(0, ==, zap_remove(os
, lr
->lr_doid
, name
, tx
));
1355 (void) ztest_log_remove(zd
, tx
, lr
, object
);
1359 ztest_object_unlock(zd
, object
);
1365 ztest_replay_write(ztest_ds_t
*zd
, lr_write_t
*lr
, boolean_t byteswap
)
1367 objset_t
*os
= zd
->zd_os
;
1368 void *data
= lr
+ 1; /* data follows lr */
1369 uint64_t offset
, length
;
1370 ztest_block_tag_t
*bt
= data
;
1371 ztest_block_tag_t
*bbt
;
1372 uint64_t gen
, txg
, lrtxg
, crtxg
;
1373 dmu_object_info_t doi
;
1376 arc_buf_t
*abuf
= NULL
;
1380 byteswap_uint64_array(lr
, sizeof (*lr
));
1382 offset
= lr
->lr_offset
;
1383 length
= lr
->lr_length
;
1385 /* If it's a dmu_sync() block, write the whole block */
1386 if (lr
->lr_common
.lrc_reclen
== sizeof (lr_write_t
)) {
1387 uint64_t blocksize
= BP_GET_LSIZE(&lr
->lr_blkptr
);
1388 if (length
< blocksize
) {
1389 offset
-= offset
% blocksize
;
1394 if (bt
->bt_magic
== BSWAP_64(BT_MAGIC
))
1395 byteswap_uint64_array(bt
, sizeof (*bt
));
1397 if (bt
->bt_magic
!= BT_MAGIC
)
1400 ztest_object_lock(zd
, lr
->lr_foid
, RL_READER
);
1401 rl
= ztest_range_lock(zd
, lr
->lr_foid
, offset
, length
, RL_WRITER
);
1403 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1405 dmu_object_info_from_db(db
, &doi
);
1407 bbt
= ztest_bt_bonus(db
);
1408 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1410 crtxg
= bbt
->bt_crtxg
;
1411 lrtxg
= lr
->lr_common
.lrc_txg
;
1413 tx
= dmu_tx_create(os
);
1415 dmu_tx_hold_write(tx
, lr
->lr_foid
, offset
, length
);
1417 if (ztest_random(8) == 0 && length
== doi
.doi_data_block_size
&&
1418 P2PHASE(offset
, length
) == 0)
1419 abuf
= dmu_request_arcbuf(db
, length
);
1421 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1424 dmu_return_arcbuf(abuf
);
1425 dmu_buf_rele(db
, FTAG
);
1426 ztest_range_unlock(rl
);
1427 ztest_object_unlock(zd
, lr
->lr_foid
);
1433 * Usually, verify the old data before writing new data --
1434 * but not always, because we also want to verify correct
1435 * behavior when the data was not recently read into cache.
1437 ASSERT(offset
% doi
.doi_data_block_size
== 0);
1438 if (ztest_random(4) != 0) {
1439 int prefetch
= ztest_random(2) ?
1440 DMU_READ_PREFETCH
: DMU_READ_NO_PREFETCH
;
1441 ztest_block_tag_t rbt
;
1443 VERIFY(dmu_read(os
, lr
->lr_foid
, offset
,
1444 sizeof (rbt
), &rbt
, prefetch
) == 0);
1445 if (rbt
.bt_magic
== BT_MAGIC
) {
1446 ztest_bt_verify(&rbt
, os
, lr
->lr_foid
,
1447 offset
, gen
, txg
, crtxg
);
1452 * Writes can appear to be newer than the bonus buffer because
1453 * the ztest_get_data() callback does a dmu_read() of the
1454 * open-context data, which may be different than the data
1455 * as it was when the write was generated.
1457 if (zd
->zd_zilog
->zl_replay
) {
1458 ztest_bt_verify(bt
, os
, lr
->lr_foid
, offset
,
1459 MAX(gen
, bt
->bt_gen
), MAX(txg
, lrtxg
),
1464 * Set the bt's gen/txg to the bonus buffer's gen/txg
1465 * so that all of the usual ASSERTs will work.
1467 ztest_bt_generate(bt
, os
, lr
->lr_foid
, offset
, gen
, txg
, crtxg
);
1471 dmu_write(os
, lr
->lr_foid
, offset
, length
, data
, tx
);
1473 bcopy(data
, abuf
->b_data
, length
);
1474 dmu_assign_arcbuf(db
, offset
, abuf
, tx
);
1477 (void) ztest_log_write(zd
, tx
, lr
);
1479 dmu_buf_rele(db
, FTAG
);
1483 ztest_range_unlock(rl
);
1484 ztest_object_unlock(zd
, lr
->lr_foid
);
1490 ztest_replay_truncate(ztest_ds_t
*zd
, lr_truncate_t
*lr
, boolean_t byteswap
)
1492 objset_t
*os
= zd
->zd_os
;
1498 byteswap_uint64_array(lr
, sizeof (*lr
));
1500 ztest_object_lock(zd
, lr
->lr_foid
, RL_READER
);
1501 rl
= ztest_range_lock(zd
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
,
1504 tx
= dmu_tx_create(os
);
1506 dmu_tx_hold_free(tx
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
);
1508 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1510 ztest_range_unlock(rl
);
1511 ztest_object_unlock(zd
, lr
->lr_foid
);
1515 VERIFY(dmu_free_range(os
, lr
->lr_foid
, lr
->lr_offset
,
1516 lr
->lr_length
, tx
) == 0);
1518 (void) ztest_log_truncate(zd
, tx
, lr
);
1522 ztest_range_unlock(rl
);
1523 ztest_object_unlock(zd
, lr
->lr_foid
);
1529 ztest_replay_setattr(ztest_ds_t
*zd
, lr_setattr_t
*lr
, boolean_t byteswap
)
1531 objset_t
*os
= zd
->zd_os
;
1534 ztest_block_tag_t
*bbt
;
1535 uint64_t txg
, lrtxg
, crtxg
;
1538 byteswap_uint64_array(lr
, sizeof (*lr
));
1540 ztest_object_lock(zd
, lr
->lr_foid
, RL_WRITER
);
1542 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1544 tx
= dmu_tx_create(os
);
1545 dmu_tx_hold_bonus(tx
, lr
->lr_foid
);
1547 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1549 dmu_buf_rele(db
, FTAG
);
1550 ztest_object_unlock(zd
, lr
->lr_foid
);
1554 bbt
= ztest_bt_bonus(db
);
1555 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1556 crtxg
= bbt
->bt_crtxg
;
1557 lrtxg
= lr
->lr_common
.lrc_txg
;
1559 if (zd
->zd_zilog
->zl_replay
) {
1560 ASSERT(lr
->lr_size
!= 0);
1561 ASSERT(lr
->lr_mode
!= 0);
1565 * Randomly change the size and increment the generation.
1567 lr
->lr_size
= (ztest_random(db
->db_size
/ sizeof (*bbt
)) + 1) *
1569 lr
->lr_mode
= bbt
->bt_gen
+ 1;
1574 * Verify that the current bonus buffer is not newer than our txg.
1576 ztest_bt_verify(bbt
, os
, lr
->lr_foid
, -1ULL, lr
->lr_mode
,
1577 MAX(txg
, lrtxg
), crtxg
);
1579 dmu_buf_will_dirty(db
, tx
);
1581 ASSERT3U(lr
->lr_size
, >=, sizeof (*bbt
));
1582 ASSERT3U(lr
->lr_size
, <=, db
->db_size
);
1583 VERIFY3U(dmu_set_bonus(db
, lr
->lr_size
, tx
), ==, 0);
1584 bbt
= ztest_bt_bonus(db
);
1586 ztest_bt_generate(bbt
, os
, lr
->lr_foid
, -1ULL, lr
->lr_mode
, txg
, crtxg
);
1588 dmu_buf_rele(db
, FTAG
);
1590 (void) ztest_log_setattr(zd
, tx
, lr
);
1594 ztest_object_unlock(zd
, lr
->lr_foid
);
1599 zil_replay_func_t
*ztest_replay_vector
[TX_MAX_TYPE
] = {
1600 NULL
, /* 0 no such transaction type */
1601 (zil_replay_func_t
*)ztest_replay_create
, /* TX_CREATE */
1602 NULL
, /* TX_MKDIR */
1603 NULL
, /* TX_MKXATTR */
1604 NULL
, /* TX_SYMLINK */
1605 (zil_replay_func_t
*)ztest_replay_remove
, /* TX_REMOVE */
1606 NULL
, /* TX_RMDIR */
1608 NULL
, /* TX_RENAME */
1609 (zil_replay_func_t
*)ztest_replay_write
, /* TX_WRITE */
1610 (zil_replay_func_t
*)ztest_replay_truncate
, /* TX_TRUNCATE */
1611 (zil_replay_func_t
*)ztest_replay_setattr
, /* TX_SETATTR */
1613 NULL
, /* TX_CREATE_ACL */
1614 NULL
, /* TX_CREATE_ATTR */
1615 NULL
, /* TX_CREATE_ACL_ATTR */
1616 NULL
, /* TX_MKDIR_ACL */
1617 NULL
, /* TX_MKDIR_ATTR */
1618 NULL
, /* TX_MKDIR_ACL_ATTR */
1619 NULL
, /* TX_WRITE2 */
1623 * ZIL get_data callbacks
1627 ztest_get_done(zgd_t
*zgd
, int error
)
1629 ztest_ds_t
*zd
= zgd
->zgd_private
;
1630 uint64_t object
= zgd
->zgd_rl
->rl_object
;
1633 dmu_buf_rele(zgd
->zgd_db
, zgd
);
1635 ztest_range_unlock(zgd
->zgd_rl
);
1636 ztest_object_unlock(zd
, object
);
1638 if (error
== 0 && zgd
->zgd_bp
)
1639 zil_add_block(zgd
->zgd_zilog
, zgd
->zgd_bp
);
1641 umem_free(zgd
, sizeof (*zgd
));
1645 ztest_get_data(void *arg
, lr_write_t
*lr
, char *buf
, zio_t
*zio
)
1647 ztest_ds_t
*zd
= arg
;
1648 objset_t
*os
= zd
->zd_os
;
1649 uint64_t object
= lr
->lr_foid
;
1650 uint64_t offset
= lr
->lr_offset
;
1651 uint64_t size
= lr
->lr_length
;
1652 blkptr_t
*bp
= &lr
->lr_blkptr
;
1653 uint64_t txg
= lr
->lr_common
.lrc_txg
;
1655 dmu_object_info_t doi
;
1660 ztest_object_lock(zd
, object
, RL_READER
);
1661 error
= dmu_bonus_hold(os
, object
, FTAG
, &db
);
1663 ztest_object_unlock(zd
, object
);
1667 crtxg
= ztest_bt_bonus(db
)->bt_crtxg
;
1669 if (crtxg
== 0 || crtxg
> txg
) {
1670 dmu_buf_rele(db
, FTAG
);
1671 ztest_object_unlock(zd
, object
);
1675 dmu_object_info_from_db(db
, &doi
);
1676 dmu_buf_rele(db
, FTAG
);
1679 zgd
= umem_zalloc(sizeof (*zgd
), UMEM_NOFAIL
);
1680 zgd
->zgd_zilog
= zd
->zd_zilog
;
1681 zgd
->zgd_private
= zd
;
1683 if (buf
!= NULL
) { /* immediate write */
1684 zgd
->zgd_rl
= ztest_range_lock(zd
, object
, offset
, size
,
1687 error
= dmu_read(os
, object
, offset
, size
, buf
,
1688 DMU_READ_NO_PREFETCH
);
1691 size
= doi
.doi_data_block_size
;
1693 offset
= P2ALIGN(offset
, size
);
1695 ASSERT(offset
< size
);
1699 zgd
->zgd_rl
= ztest_range_lock(zd
, object
, offset
, size
,
1702 error
= dmu_buf_hold(os
, object
, offset
, zgd
, &db
,
1703 DMU_READ_NO_PREFETCH
);
1709 ASSERT(db
->db_offset
== offset
);
1710 ASSERT(db
->db_size
== size
);
1712 error
= dmu_sync(zio
, lr
->lr_common
.lrc_txg
,
1713 ztest_get_done
, zgd
);
1720 ztest_get_done(zgd
, error
);
1726 ztest_lr_alloc(size_t lrsize
, char *name
)
1729 size_t namesize
= name
? strlen(name
) + 1 : 0;
1731 lr
= umem_zalloc(lrsize
+ namesize
, UMEM_NOFAIL
);
1734 bcopy(name
, lr
+ lrsize
, namesize
);
1740 ztest_lr_free(void *lr
, size_t lrsize
, char *name
)
1742 size_t namesize
= name
? strlen(name
) + 1 : 0;
1744 umem_free(lr
, lrsize
+ namesize
);
1748 * Lookup a bunch of objects. Returns the number of objects not found.
1751 ztest_lookup(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
1757 ASSERT(_mutex_held(&zd
->zd_dirobj_lock
));
1759 for (i
= 0; i
< count
; i
++, od
++) {
1761 error
= zap_lookup(zd
->zd_os
, od
->od_dir
, od
->od_name
,
1762 sizeof (uint64_t), 1, &od
->od_object
);
1764 ASSERT(error
== ENOENT
);
1765 ASSERT(od
->od_object
== 0);
1769 ztest_block_tag_t
*bbt
;
1770 dmu_object_info_t doi
;
1772 ASSERT(od
->od_object
!= 0);
1773 ASSERT(missing
== 0); /* there should be no gaps */
1775 ztest_object_lock(zd
, od
->od_object
, RL_READER
);
1776 VERIFY3U(0, ==, dmu_bonus_hold(zd
->zd_os
,
1777 od
->od_object
, FTAG
, &db
));
1778 dmu_object_info_from_db(db
, &doi
);
1779 bbt
= ztest_bt_bonus(db
);
1780 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1781 od
->od_type
= doi
.doi_type
;
1782 od
->od_blocksize
= doi
.doi_data_block_size
;
1783 od
->od_gen
= bbt
->bt_gen
;
1784 dmu_buf_rele(db
, FTAG
);
1785 ztest_object_unlock(zd
, od
->od_object
);
1793 ztest_create(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
1798 ASSERT(_mutex_held(&zd
->zd_dirobj_lock
));
1800 for (i
= 0; i
< count
; i
++, od
++) {
1807 lr_create_t
*lr
= ztest_lr_alloc(sizeof (*lr
), od
->od_name
);
1809 lr
->lr_doid
= od
->od_dir
;
1810 lr
->lr_foid
= 0; /* 0 to allocate, > 0 to claim */
1811 lr
->lrz_type
= od
->od_crtype
;
1812 lr
->lrz_blocksize
= od
->od_crblocksize
;
1813 lr
->lrz_ibshift
= ztest_random_ibshift();
1814 lr
->lrz_bonustype
= DMU_OT_UINT64_OTHER
;
1815 lr
->lrz_bonuslen
= dmu_bonus_max();
1816 lr
->lr_gen
= od
->od_crgen
;
1817 lr
->lr_crtime
[0] = time(NULL
);
1819 if (ztest_replay_create(zd
, lr
, B_FALSE
) != 0) {
1820 ASSERT(missing
== 0);
1824 od
->od_object
= lr
->lr_foid
;
1825 od
->od_type
= od
->od_crtype
;
1826 od
->od_blocksize
= od
->od_crblocksize
;
1827 od
->od_gen
= od
->od_crgen
;
1828 ASSERT(od
->od_object
!= 0);
1831 ztest_lr_free(lr
, sizeof (*lr
), od
->od_name
);
1838 ztest_remove(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
1844 ASSERT(_mutex_held(&zd
->zd_dirobj_lock
));
1848 for (i
= count
- 1; i
>= 0; i
--, od
--) {
1854 if (od
->od_object
== 0)
1857 lr_remove_t
*lr
= ztest_lr_alloc(sizeof (*lr
), od
->od_name
);
1859 lr
->lr_doid
= od
->od_dir
;
1861 if ((error
= ztest_replay_remove(zd
, lr
, B_FALSE
)) != 0) {
1862 ASSERT3U(error
, ==, ENOSPC
);
1867 ztest_lr_free(lr
, sizeof (*lr
), od
->od_name
);
1874 ztest_write(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
,
1880 lr
= ztest_lr_alloc(sizeof (*lr
) + size
, NULL
);
1882 lr
->lr_foid
= object
;
1883 lr
->lr_offset
= offset
;
1884 lr
->lr_length
= size
;
1886 BP_ZERO(&lr
->lr_blkptr
);
1888 bcopy(data
, lr
+ 1, size
);
1890 error
= ztest_replay_write(zd
, lr
, B_FALSE
);
1892 ztest_lr_free(lr
, sizeof (*lr
) + size
, NULL
);
1898 ztest_truncate(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
)
1903 lr
= ztest_lr_alloc(sizeof (*lr
), NULL
);
1905 lr
->lr_foid
= object
;
1906 lr
->lr_offset
= offset
;
1907 lr
->lr_length
= size
;
1909 error
= ztest_replay_truncate(zd
, lr
, B_FALSE
);
1911 ztest_lr_free(lr
, sizeof (*lr
), NULL
);
1917 ztest_setattr(ztest_ds_t
*zd
, uint64_t object
)
1922 lr
= ztest_lr_alloc(sizeof (*lr
), NULL
);
1924 lr
->lr_foid
= object
;
1928 error
= ztest_replay_setattr(zd
, lr
, B_FALSE
);
1930 ztest_lr_free(lr
, sizeof (*lr
), NULL
);
1936 ztest_prealloc(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
)
1938 objset_t
*os
= zd
->zd_os
;
1943 txg_wait_synced(dmu_objset_pool(os
), 0);
1945 ztest_object_lock(zd
, object
, RL_READER
);
1946 rl
= ztest_range_lock(zd
, object
, offset
, size
, RL_WRITER
);
1948 tx
= dmu_tx_create(os
);
1950 dmu_tx_hold_write(tx
, object
, offset
, size
);
1952 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1955 dmu_prealloc(os
, object
, offset
, size
, tx
);
1957 txg_wait_synced(dmu_objset_pool(os
), txg
);
1959 (void) dmu_free_long_range(os
, object
, offset
, size
);
1962 ztest_range_unlock(rl
);
1963 ztest_object_unlock(zd
, object
);
1967 ztest_io(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
)
1969 ztest_block_tag_t wbt
;
1970 dmu_object_info_t doi
;
1971 enum ztest_io_type io_type
;
1975 VERIFY(dmu_object_info(zd
->zd_os
, object
, &doi
) == 0);
1976 blocksize
= doi
.doi_data_block_size
;
1977 data
= umem_alloc(blocksize
, UMEM_NOFAIL
);
1980 * Pick an i/o type at random, biased toward writing block tags.
1982 io_type
= ztest_random(ZTEST_IO_TYPES
);
1983 if (ztest_random(2) == 0)
1984 io_type
= ZTEST_IO_WRITE_TAG
;
1988 case ZTEST_IO_WRITE_TAG
:
1989 ztest_bt_generate(&wbt
, zd
->zd_os
, object
, offset
, 0, 0, 0);
1990 (void) ztest_write(zd
, object
, offset
, sizeof (wbt
), &wbt
);
1993 case ZTEST_IO_WRITE_PATTERN
:
1994 (void) memset(data
, 'a' + (object
+ offset
) % 5, blocksize
);
1995 if (ztest_random(2) == 0) {
1997 * Induce fletcher2 collisions to ensure that
1998 * zio_ddt_collision() detects and resolves them
1999 * when using fletcher2-verify for deduplication.
2001 ((uint64_t *)data
)[0] ^= 1ULL << 63;
2002 ((uint64_t *)data
)[4] ^= 1ULL << 63;
2004 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2007 case ZTEST_IO_WRITE_ZEROES
:
2008 bzero(data
, blocksize
);
2009 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2012 case ZTEST_IO_TRUNCATE
:
2013 (void) ztest_truncate(zd
, object
, offset
, blocksize
);
2016 case ZTEST_IO_SETATTR
:
2017 (void) ztest_setattr(zd
, object
);
2023 umem_free(data
, blocksize
);
2027 * Initialize an object description template.
2030 ztest_od_init(ztest_od_t
*od
, uint64_t id
, char *tag
, uint64_t index
,
2031 dmu_object_type_t type
, uint64_t blocksize
, uint64_t gen
)
2033 od
->od_dir
= ZTEST_DIROBJ
;
2036 od
->od_crtype
= type
;
2037 od
->od_crblocksize
= blocksize
? blocksize
: ztest_random_blocksize();
2040 od
->od_type
= DMU_OT_NONE
;
2041 od
->od_blocksize
= 0;
2044 (void) snprintf(od
->od_name
, sizeof (od
->od_name
), "%s(%lld)[%llu]",
2045 tag
, (longlong_t
)id
, (u_longlong_t
)index
);
2049 * Lookup or create the objects for a test using the od template.
2050 * If the objects do not all exist, or if 'remove' is specified,
2051 * remove any existing objects and create new ones. Otherwise,
2052 * use the existing objects.
2055 ztest_object_init(ztest_ds_t
*zd
, ztest_od_t
*od
, size_t size
, boolean_t remove
)
2057 int count
= size
/ sizeof (*od
);
2060 VERIFY(mutex_lock(&zd
->zd_dirobj_lock
) == 0);
2061 if ((ztest_lookup(zd
, od
, count
) != 0 || remove
) &&
2062 (ztest_remove(zd
, od
, count
) != 0 ||
2063 ztest_create(zd
, od
, count
) != 0))
2066 VERIFY(mutex_unlock(&zd
->zd_dirobj_lock
) == 0);
2073 ztest_zil_commit(ztest_ds_t
*zd
, uint64_t id
)
2075 zilog_t
*zilog
= zd
->zd_zilog
;
2077 zil_commit(zilog
, ztest_random(ZTEST_OBJECTS
));
2080 * Remember the committed values in zd, which is in parent/child
2081 * shared memory. If we die, the next iteration of ztest_run()
2082 * will verify that the log really does contain this record.
2084 mutex_enter(&zilog
->zl_lock
);
2085 ASSERT(zd
->zd_seq
<= zilog
->zl_commit_lr_seq
);
2086 zd
->zd_seq
= zilog
->zl_commit_lr_seq
;
2087 mutex_exit(&zilog
->zl_lock
);
2091 * Verify that we can't destroy an active pool, create an existing pool,
2092 * or create a pool with a bad vdev spec.
2096 ztest_spa_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
2098 ztest_shared_t
*zs
= ztest_shared
;
2103 * Attempt to create using a bad file.
2105 nvroot
= make_vdev_root("/dev/bogus", NULL
, 0, 0, 0, 0, 0, 1);
2106 VERIFY3U(ENOENT
, ==,
2107 spa_create("ztest_bad_file", nvroot
, NULL
, NULL
, NULL
));
2108 nvlist_free(nvroot
);
2111 * Attempt to create using a bad mirror.
2113 nvroot
= make_vdev_root("/dev/bogus", NULL
, 0, 0, 0, 0, 2, 1);
2114 VERIFY3U(ENOENT
, ==,
2115 spa_create("ztest_bad_mirror", nvroot
, NULL
, NULL
, NULL
));
2116 nvlist_free(nvroot
);
2119 * Attempt to create an existing pool. It shouldn't matter
2120 * what's in the nvroot; we should fail with EEXIST.
2122 (void) rw_rdlock(&zs
->zs_name_lock
);
2123 nvroot
= make_vdev_root("/dev/bogus", NULL
, 0, 0, 0, 0, 0, 1);
2124 VERIFY3U(EEXIST
, ==, spa_create(zs
->zs_pool
, nvroot
, NULL
, NULL
, NULL
));
2125 nvlist_free(nvroot
);
2126 VERIFY3U(0, ==, spa_open(zs
->zs_pool
, &spa
, FTAG
));
2127 VERIFY3U(EBUSY
, ==, spa_destroy(zs
->zs_pool
));
2128 spa_close(spa
, FTAG
);
2130 (void) rw_unlock(&zs
->zs_name_lock
);
2134 vdev_lookup_by_path(vdev_t
*vd
, const char *path
)
2139 if (vd
->vdev_path
!= NULL
&& strcmp(path
, vd
->vdev_path
) == 0)
2142 for (c
= 0; c
< vd
->vdev_children
; c
++)
2143 if ((mvd
= vdev_lookup_by_path(vd
->vdev_child
[c
], path
)) !=
2151 * Find the first available hole which can be used as a top-level.
2154 find_vdev_hole(spa_t
*spa
)
2156 vdev_t
*rvd
= spa
->spa_root_vdev
;
2159 ASSERT(spa_config_held(spa
, SCL_VDEV
, RW_READER
) == SCL_VDEV
);
2161 for (c
= 0; c
< rvd
->vdev_children
; c
++) {
2162 vdev_t
*cvd
= rvd
->vdev_child
[c
];
2164 if (cvd
->vdev_ishole
)
2171 * Verify that vdev_add() works as expected.
2175 ztest_vdev_add_remove(ztest_ds_t
*zd
, uint64_t id
)
2177 ztest_shared_t
*zs
= ztest_shared
;
2178 spa_t
*spa
= zs
->zs_spa
;
2184 VERIFY(mutex_lock(&zs
->zs_vdev_lock
) == 0);
2185 leaves
= MAX(zs
->zs_mirrors
+ zs
->zs_splits
, 1) * zopt_raidz
;
2187 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2189 ztest_shared
->zs_vdev_next_leaf
= find_vdev_hole(spa
) * leaves
;
2192 * If we have slogs then remove them 1/4 of the time.
2194 if (spa_has_slogs(spa
) && ztest_random(4) == 0) {
2196 * Grab the guid from the head of the log class rotor.
2198 guid
= spa_log_class(spa
)->mc_rotor
->mg_vd
->vdev_guid
;
2200 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2203 * We have to grab the zs_name_lock as writer to
2204 * prevent a race between removing a slog (dmu_objset_find)
2205 * and destroying a dataset. Removing the slog will
2206 * grab a reference on the dataset which may cause
2207 * dmu_objset_destroy() to fail with EBUSY thus
2208 * leaving the dataset in an inconsistent state.
2210 VERIFY(rw_wrlock(&ztest_shared
->zs_name_lock
) == 0);
2211 error
= spa_vdev_remove(spa
, guid
, B_FALSE
);
2212 VERIFY(rw_unlock(&ztest_shared
->zs_name_lock
) == 0);
2214 if (error
&& error
!= EEXIST
)
2215 fatal(0, "spa_vdev_remove() = %d", error
);
2217 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2220 * Make 1/4 of the devices be log devices.
2222 nvroot
= make_vdev_root(NULL
, NULL
, zopt_vdev_size
, 0,
2223 ztest_random(4) == 0, zopt_raidz
, zs
->zs_mirrors
, 1);
2225 error
= spa_vdev_add(spa
, nvroot
);
2226 nvlist_free(nvroot
);
2228 if (error
== ENOSPC
)
2229 ztest_record_enospc("spa_vdev_add");
2230 else if (error
!= 0)
2231 fatal(0, "spa_vdev_add() = %d", error
);
2234 VERIFY(mutex_unlock(&ztest_shared
->zs_vdev_lock
) == 0);
2238 * Verify that adding/removing aux devices (l2arc, hot spare) works as expected.
2242 ztest_vdev_aux_add_remove(ztest_ds_t
*zd
, uint64_t id
)
2244 ztest_shared_t
*zs
= ztest_shared
;
2245 spa_t
*spa
= zs
->zs_spa
;
2246 vdev_t
*rvd
= spa
->spa_root_vdev
;
2247 spa_aux_vdev_t
*sav
;
2252 if (ztest_random(2) == 0) {
2253 sav
= &spa
->spa_spares
;
2254 aux
= ZPOOL_CONFIG_SPARES
;
2256 sav
= &spa
->spa_l2cache
;
2257 aux
= ZPOOL_CONFIG_L2CACHE
;
2260 VERIFY(mutex_lock(&zs
->zs_vdev_lock
) == 0);
2262 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2264 if (sav
->sav_count
!= 0 && ztest_random(4) == 0) {
2266 * Pick a random device to remove.
2268 guid
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)]->vdev_guid
;
2271 * Find an unused device we can add.
2273 zs
->zs_vdev_aux
= 0;
2275 char path
[MAXPATHLEN
];
2277 (void) sprintf(path
, ztest_aux_template
, zopt_dir
,
2278 zopt_pool
, aux
, zs
->zs_vdev_aux
);
2279 for (c
= 0; c
< sav
->sav_count
; c
++)
2280 if (strcmp(sav
->sav_vdevs
[c
]->vdev_path
,
2283 if (c
== sav
->sav_count
&&
2284 vdev_lookup_by_path(rvd
, path
) == NULL
)
2290 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2296 nvlist_t
*nvroot
= make_vdev_root(NULL
, aux
,
2297 (zopt_vdev_size
* 5) / 4, 0, 0, 0, 0, 1);
2298 error
= spa_vdev_add(spa
, nvroot
);
2300 fatal(0, "spa_vdev_add(%p) = %d", nvroot
, error
);
2301 nvlist_free(nvroot
);
2304 * Remove an existing device. Sometimes, dirty its
2305 * vdev state first to make sure we handle removal
2306 * of devices that have pending state changes.
2308 if (ztest_random(2) == 0)
2309 (void) vdev_online(spa
, guid
, 0, NULL
);
2311 error
= spa_vdev_remove(spa
, guid
, B_FALSE
);
2312 if (error
!= 0 && error
!= EBUSY
)
2313 fatal(0, "spa_vdev_remove(%llu) = %d", guid
, error
);
2316 VERIFY(mutex_unlock(&zs
->zs_vdev_lock
) == 0);
2320 * split a pool if it has mirror tlvdevs
2324 ztest_split_pool(ztest_ds_t
*zd
, uint64_t id
)
2326 ztest_shared_t
*zs
= ztest_shared
;
2327 spa_t
*spa
= zs
->zs_spa
;
2328 vdev_t
*rvd
= spa
->spa_root_vdev
;
2329 nvlist_t
*tree
, **child
, *config
, *split
, **schild
;
2330 uint_t c
, children
, schildren
= 0, lastlogid
= 0;
2333 VERIFY(mutex_lock(&zs
->zs_vdev_lock
) == 0);
2335 /* ensure we have a useable config; mirrors of raidz aren't supported */
2336 if (zs
->zs_mirrors
< 3 || zopt_raidz
> 1) {
2337 VERIFY(mutex_unlock(&zs
->zs_vdev_lock
) == 0);
2341 /* clean up the old pool, if any */
2342 (void) spa_destroy("splitp");
2344 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2346 /* generate a config from the existing config */
2347 mutex_enter(&spa
->spa_props_lock
);
2348 VERIFY(nvlist_lookup_nvlist(spa
->spa_config
, ZPOOL_CONFIG_VDEV_TREE
,
2350 mutex_exit(&spa
->spa_props_lock
);
2352 VERIFY(nvlist_lookup_nvlist_array(tree
, ZPOOL_CONFIG_CHILDREN
, &child
,
2355 schild
= malloc(rvd
->vdev_children
* sizeof (nvlist_t
*));
2356 for (c
= 0; c
< children
; c
++) {
2357 vdev_t
*tvd
= rvd
->vdev_child
[c
];
2361 if (tvd
->vdev_islog
|| tvd
->vdev_ops
== &vdev_hole_ops
) {
2362 VERIFY(nvlist_alloc(&schild
[schildren
], NV_UNIQUE_NAME
,
2364 VERIFY(nvlist_add_string(schild
[schildren
],
2365 ZPOOL_CONFIG_TYPE
, VDEV_TYPE_HOLE
) == 0);
2366 VERIFY(nvlist_add_uint64(schild
[schildren
],
2367 ZPOOL_CONFIG_IS_HOLE
, 1) == 0);
2369 lastlogid
= schildren
;
2374 VERIFY(nvlist_lookup_nvlist_array(child
[c
],
2375 ZPOOL_CONFIG_CHILDREN
, &mchild
, &mchildren
) == 0);
2376 VERIFY(nvlist_dup(mchild
[0], &schild
[schildren
++], 0) == 0);
2379 /* OK, create a config that can be used to split */
2380 VERIFY(nvlist_alloc(&split
, NV_UNIQUE_NAME
, 0) == 0);
2381 VERIFY(nvlist_add_string(split
, ZPOOL_CONFIG_TYPE
,
2382 VDEV_TYPE_ROOT
) == 0);
2383 VERIFY(nvlist_add_nvlist_array(split
, ZPOOL_CONFIG_CHILDREN
, schild
,
2384 lastlogid
!= 0 ? lastlogid
: schildren
) == 0);
2386 VERIFY(nvlist_alloc(&config
, NV_UNIQUE_NAME
, 0) == 0);
2387 VERIFY(nvlist_add_nvlist(config
, ZPOOL_CONFIG_VDEV_TREE
, split
) == 0);
2389 for (c
= 0; c
< schildren
; c
++)
2390 nvlist_free(schild
[c
]);
2394 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2396 (void) rw_wrlock(&zs
->zs_name_lock
);
2397 error
= spa_vdev_split_mirror(spa
, "splitp", config
, NULL
, B_FALSE
);
2398 (void) rw_unlock(&zs
->zs_name_lock
);
2400 nvlist_free(config
);
2403 (void) printf("successful split - results:\n");
2404 mutex_enter(&spa_namespace_lock
);
2405 show_pool_stats(spa
);
2406 show_pool_stats(spa_lookup("splitp"));
2407 mutex_exit(&spa_namespace_lock
);
2411 VERIFY(mutex_unlock(&zs
->zs_vdev_lock
) == 0);
2416 * Verify that we can attach and detach devices.
2420 ztest_vdev_attach_detach(ztest_ds_t
*zd
, uint64_t id
)
2422 ztest_shared_t
*zs
= ztest_shared
;
2423 spa_t
*spa
= zs
->zs_spa
;
2424 spa_aux_vdev_t
*sav
= &spa
->spa_spares
;
2425 vdev_t
*rvd
= spa
->spa_root_vdev
;
2426 vdev_t
*oldvd
, *newvd
, *pvd
;
2430 uint64_t ashift
= ztest_get_ashift();
2431 uint64_t oldguid
, pguid
;
2432 size_t oldsize
, newsize
;
2433 char oldpath
[MAXPATHLEN
], newpath
[MAXPATHLEN
];
2435 int oldvd_has_siblings
= B_FALSE
;
2436 int newvd_is_spare
= B_FALSE
;
2438 int error
, expected_error
;
2440 VERIFY(mutex_lock(&zs
->zs_vdev_lock
) == 0);
2441 leaves
= MAX(zs
->zs_mirrors
, 1) * zopt_raidz
;
2443 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2446 * Decide whether to do an attach or a replace.
2448 replacing
= ztest_random(2);
2451 * Pick a random top-level vdev.
2453 top
= ztest_random_vdev_top(spa
, B_TRUE
);
2456 * Pick a random leaf within it.
2458 leaf
= ztest_random(leaves
);
2463 oldvd
= rvd
->vdev_child
[top
];
2464 if (zs
->zs_mirrors
>= 1) {
2465 ASSERT(oldvd
->vdev_ops
== &vdev_mirror_ops
);
2466 ASSERT(oldvd
->vdev_children
>= zs
->zs_mirrors
);
2467 oldvd
= oldvd
->vdev_child
[leaf
/ zopt_raidz
];
2469 if (zopt_raidz
> 1) {
2470 ASSERT(oldvd
->vdev_ops
== &vdev_raidz_ops
);
2471 ASSERT(oldvd
->vdev_children
== zopt_raidz
);
2472 oldvd
= oldvd
->vdev_child
[leaf
% zopt_raidz
];
2476 * If we're already doing an attach or replace, oldvd may be a
2477 * mirror vdev -- in which case, pick a random child.
2479 while (oldvd
->vdev_children
!= 0) {
2480 oldvd_has_siblings
= B_TRUE
;
2481 ASSERT(oldvd
->vdev_children
>= 2);
2482 oldvd
= oldvd
->vdev_child
[ztest_random(oldvd
->vdev_children
)];
2485 oldguid
= oldvd
->vdev_guid
;
2486 oldsize
= vdev_get_min_asize(oldvd
);
2487 oldvd_is_log
= oldvd
->vdev_top
->vdev_islog
;
2488 (void) strcpy(oldpath
, oldvd
->vdev_path
);
2489 pvd
= oldvd
->vdev_parent
;
2490 pguid
= pvd
->vdev_guid
;
2493 * If oldvd has siblings, then half of the time, detach it.
2495 if (oldvd_has_siblings
&& ztest_random(2) == 0) {
2496 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2497 error
= spa_vdev_detach(spa
, oldguid
, pguid
, B_FALSE
);
2498 if (error
!= 0 && error
!= ENODEV
&& error
!= EBUSY
&&
2500 fatal(0, "detach (%s) returned %d", oldpath
, error
);
2501 VERIFY(mutex_unlock(&zs
->zs_vdev_lock
) == 0);
2506 * For the new vdev, choose with equal probability between the two
2507 * standard paths (ending in either 'a' or 'b') or a random hot spare.
2509 if (sav
->sav_count
!= 0 && ztest_random(3) == 0) {
2510 newvd
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)];
2511 newvd_is_spare
= B_TRUE
;
2512 (void) strcpy(newpath
, newvd
->vdev_path
);
2514 (void) snprintf(newpath
, sizeof (newpath
), ztest_dev_template
,
2515 zopt_dir
, zopt_pool
, top
* leaves
+ leaf
);
2516 if (ztest_random(2) == 0)
2517 newpath
[strlen(newpath
) - 1] = 'b';
2518 newvd
= vdev_lookup_by_path(rvd
, newpath
);
2522 newsize
= vdev_get_min_asize(newvd
);
2525 * Make newsize a little bigger or smaller than oldsize.
2526 * If it's smaller, the attach should fail.
2527 * If it's larger, and we're doing a replace,
2528 * we should get dynamic LUN growth when we're done.
2530 newsize
= 10 * oldsize
/ (9 + ztest_random(3));
2534 * If pvd is not a mirror or root, the attach should fail with ENOTSUP,
2535 * unless it's a replace; in that case any non-replacing parent is OK.
2537 * If newvd is already part of the pool, it should fail with EBUSY.
2539 * If newvd is too small, it should fail with EOVERFLOW.
2541 if (pvd
->vdev_ops
!= &vdev_mirror_ops
&&
2542 pvd
->vdev_ops
!= &vdev_root_ops
&& (!replacing
||
2543 pvd
->vdev_ops
== &vdev_replacing_ops
||
2544 pvd
->vdev_ops
== &vdev_spare_ops
))
2545 expected_error
= ENOTSUP
;
2546 else if (newvd_is_spare
&& (!replacing
|| oldvd_is_log
))
2547 expected_error
= ENOTSUP
;
2548 else if (newvd
== oldvd
)
2549 expected_error
= replacing
? 0 : EBUSY
;
2550 else if (vdev_lookup_by_path(rvd
, newpath
) != NULL
)
2551 expected_error
= EBUSY
;
2552 else if (newsize
< oldsize
)
2553 expected_error
= EOVERFLOW
;
2554 else if (ashift
> oldvd
->vdev_top
->vdev_ashift
)
2555 expected_error
= EDOM
;
2559 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2562 * Build the nvlist describing newpath.
2564 root
= make_vdev_root(newpath
, NULL
, newvd
== NULL
? newsize
: 0,
2565 ashift
, 0, 0, 0, 1);
2567 error
= spa_vdev_attach(spa
, oldguid
, root
, replacing
);
2572 * If our parent was the replacing vdev, but the replace completed,
2573 * then instead of failing with ENOTSUP we may either succeed,
2574 * fail with ENODEV, or fail with EOVERFLOW.
2576 if (expected_error
== ENOTSUP
&&
2577 (error
== 0 || error
== ENODEV
|| error
== EOVERFLOW
))
2578 expected_error
= error
;
2581 * If someone grew the LUN, the replacement may be too small.
2583 if (error
== EOVERFLOW
|| error
== EBUSY
)
2584 expected_error
= error
;
2586 /* XXX workaround 6690467 */
2587 if (error
!= expected_error
&& expected_error
!= EBUSY
) {
2588 fatal(0, "attach (%s %llu, %s %llu, %d) "
2589 "returned %d, expected %d",
2590 oldpath
, (longlong_t
)oldsize
, newpath
,
2591 (longlong_t
)newsize
, replacing
, error
, expected_error
);
2594 VERIFY(mutex_unlock(&zs
->zs_vdev_lock
) == 0);
2598 * Callback function which expands the physical size of the vdev.
2601 grow_vdev(vdev_t
*vd
, void *arg
)
2603 ASSERTV(spa_t
*spa
= vd
->vdev_spa
);
2604 size_t *newsize
= arg
;
2608 ASSERT(spa_config_held(spa
, SCL_STATE
, RW_READER
) == SCL_STATE
);
2609 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
2611 if ((fd
= open(vd
->vdev_path
, O_RDWR
)) == -1)
2614 fsize
= lseek(fd
, 0, SEEK_END
);
2615 VERIFY(ftruncate(fd
, *newsize
) == 0);
2617 if (zopt_verbose
>= 6) {
2618 (void) printf("%s grew from %lu to %lu bytes\n",
2619 vd
->vdev_path
, (ulong_t
)fsize
, (ulong_t
)*newsize
);
2626 * Callback function which expands a given vdev by calling vdev_online().
2630 online_vdev(vdev_t
*vd
, void *arg
)
2632 spa_t
*spa
= vd
->vdev_spa
;
2633 vdev_t
*tvd
= vd
->vdev_top
;
2634 uint64_t guid
= vd
->vdev_guid
;
2635 uint64_t generation
= spa
->spa_config_generation
+ 1;
2636 vdev_state_t newstate
= VDEV_STATE_UNKNOWN
;
2639 ASSERT(spa_config_held(spa
, SCL_STATE
, RW_READER
) == SCL_STATE
);
2640 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
2642 /* Calling vdev_online will initialize the new metaslabs */
2643 spa_config_exit(spa
, SCL_STATE
, spa
);
2644 error
= vdev_online(spa
, guid
, ZFS_ONLINE_EXPAND
, &newstate
);
2645 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
2648 * If vdev_online returned an error or the underlying vdev_open
2649 * failed then we abort the expand. The only way to know that
2650 * vdev_open fails is by checking the returned newstate.
2652 if (error
|| newstate
!= VDEV_STATE_HEALTHY
) {
2653 if (zopt_verbose
>= 5) {
2654 (void) printf("Unable to expand vdev, state %llu, "
2655 "error %d\n", (u_longlong_t
)newstate
, error
);
2659 ASSERT3U(newstate
, ==, VDEV_STATE_HEALTHY
);
2662 * Since we dropped the lock we need to ensure that we're
2663 * still talking to the original vdev. It's possible this
2664 * vdev may have been detached/replaced while we were
2665 * trying to online it.
2667 if (generation
!= spa
->spa_config_generation
) {
2668 if (zopt_verbose
>= 5) {
2669 (void) printf("vdev configuration has changed, "
2670 "guid %llu, state %llu, expected gen %llu, "
2673 (u_longlong_t
)tvd
->vdev_state
,
2674 (u_longlong_t
)generation
,
2675 (u_longlong_t
)spa
->spa_config_generation
);
2683 * Traverse the vdev tree calling the supplied function.
2684 * We continue to walk the tree until we either have walked all
2685 * children or we receive a non-NULL return from the callback.
2686 * If a NULL callback is passed, then we just return back the first
2687 * leaf vdev we encounter.
2690 vdev_walk_tree(vdev_t
*vd
, vdev_t
*(*func
)(vdev_t
*, void *), void *arg
)
2694 if (vd
->vdev_ops
->vdev_op_leaf
) {
2698 return (func(vd
, arg
));
2701 for (c
= 0; c
< vd
->vdev_children
; c
++) {
2702 vdev_t
*cvd
= vd
->vdev_child
[c
];
2703 if ((cvd
= vdev_walk_tree(cvd
, func
, arg
)) != NULL
)
2710 * Verify that dynamic LUN growth works as expected.
2714 ztest_vdev_LUN_growth(ztest_ds_t
*zd
, uint64_t id
)
2716 ztest_shared_t
*zs
= ztest_shared
;
2717 spa_t
*spa
= zs
->zs_spa
;
2719 metaslab_class_t
*mc
;
2720 metaslab_group_t
*mg
;
2721 size_t psize
, newsize
;
2723 uint64_t old_class_space
, new_class_space
, old_ms_count
, new_ms_count
;
2725 VERIFY(mutex_lock(&zs
->zs_vdev_lock
) == 0);
2726 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
2728 top
= ztest_random_vdev_top(spa
, B_TRUE
);
2730 tvd
= spa
->spa_root_vdev
->vdev_child
[top
];
2733 old_ms_count
= tvd
->vdev_ms_count
;
2734 old_class_space
= metaslab_class_get_space(mc
);
2737 * Determine the size of the first leaf vdev associated with
2738 * our top-level device.
2740 vd
= vdev_walk_tree(tvd
, NULL
, NULL
);
2741 ASSERT3P(vd
, !=, NULL
);
2742 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
2744 psize
= vd
->vdev_psize
;
2747 * We only try to expand the vdev if it's healthy, less than 4x its
2748 * original size, and it has a valid psize.
2750 if (tvd
->vdev_state
!= VDEV_STATE_HEALTHY
||
2751 psize
== 0 || psize
>= 4 * zopt_vdev_size
) {
2752 spa_config_exit(spa
, SCL_STATE
, spa
);
2753 VERIFY(mutex_unlock(&zs
->zs_vdev_lock
) == 0);
2757 newsize
= psize
+ psize
/ 8;
2758 ASSERT3U(newsize
, >, psize
);
2760 if (zopt_verbose
>= 6) {
2761 (void) printf("Expanding LUN %s from %lu to %lu\n",
2762 vd
->vdev_path
, (ulong_t
)psize
, (ulong_t
)newsize
);
2766 * Growing the vdev is a two step process:
2767 * 1). expand the physical size (i.e. relabel)
2768 * 2). online the vdev to create the new metaslabs
2770 if (vdev_walk_tree(tvd
, grow_vdev
, &newsize
) != NULL
||
2771 vdev_walk_tree(tvd
, online_vdev
, NULL
) != NULL
||
2772 tvd
->vdev_state
!= VDEV_STATE_HEALTHY
) {
2773 if (zopt_verbose
>= 5) {
2774 (void) printf("Could not expand LUN because "
2775 "the vdev configuration changed.\n");
2777 spa_config_exit(spa
, SCL_STATE
, spa
);
2778 VERIFY(mutex_unlock(&zs
->zs_vdev_lock
) == 0);
2782 spa_config_exit(spa
, SCL_STATE
, spa
);
2785 * Expanding the LUN will update the config asynchronously,
2786 * thus we must wait for the async thread to complete any
2787 * pending tasks before proceeding.
2791 mutex_enter(&spa
->spa_async_lock
);
2792 done
= (spa
->spa_async_thread
== NULL
&& !spa
->spa_async_tasks
);
2793 mutex_exit(&spa
->spa_async_lock
);
2796 txg_wait_synced(spa_get_dsl(spa
), 0);
2797 (void) poll(NULL
, 0, 100);
2800 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
2802 tvd
= spa
->spa_root_vdev
->vdev_child
[top
];
2803 new_ms_count
= tvd
->vdev_ms_count
;
2804 new_class_space
= metaslab_class_get_space(mc
);
2806 if (tvd
->vdev_mg
!= mg
|| mg
->mg_class
!= mc
) {
2807 if (zopt_verbose
>= 5) {
2808 (void) printf("Could not verify LUN expansion due to "
2809 "intervening vdev offline or remove.\n");
2811 spa_config_exit(spa
, SCL_STATE
, spa
);
2812 VERIFY(mutex_unlock(&zs
->zs_vdev_lock
) == 0);
2817 * Make sure we were able to grow the vdev.
2819 if (new_ms_count
<= old_ms_count
)
2820 fatal(0, "LUN expansion failed: ms_count %llu <= %llu\n",
2821 old_ms_count
, new_ms_count
);
2824 * Make sure we were able to grow the pool.
2826 if (new_class_space
<= old_class_space
)
2827 fatal(0, "LUN expansion failed: class_space %llu <= %llu\n",
2828 old_class_space
, new_class_space
);
2830 if (zopt_verbose
>= 5) {
2831 char oldnumbuf
[6], newnumbuf
[6];
2833 nicenum(old_class_space
, oldnumbuf
);
2834 nicenum(new_class_space
, newnumbuf
);
2835 (void) printf("%s grew from %s to %s\n",
2836 spa
->spa_name
, oldnumbuf
, newnumbuf
);
2839 spa_config_exit(spa
, SCL_STATE
, spa
);
2840 VERIFY(mutex_unlock(&zs
->zs_vdev_lock
) == 0);
2844 * Verify that dmu_objset_{create,destroy,open,close} work as expected.
2848 ztest_objset_create_cb(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
)
2851 * Create the objects common to all ztest datasets.
2853 VERIFY(zap_create_claim(os
, ZTEST_DIROBJ
,
2854 DMU_OT_ZAP_OTHER
, DMU_OT_NONE
, 0, tx
) == 0);
2858 ztest_dataset_create(char *dsname
)
2860 uint64_t zilset
= ztest_random(100);
2861 int err
= dmu_objset_create(dsname
, DMU_OST_OTHER
, 0,
2862 ztest_objset_create_cb
, NULL
);
2864 if (err
|| zilset
< 80)
2867 (void) printf("Setting dataset %s to sync always\n", dsname
);
2868 return (ztest_dsl_prop_set_uint64(dsname
, ZFS_PROP_SYNC
,
2869 ZFS_SYNC_ALWAYS
, B_FALSE
));
2874 ztest_objset_destroy_cb(const char *name
, void *arg
)
2877 dmu_object_info_t doi
;
2881 * Verify that the dataset contains a directory object.
2883 VERIFY3U(0, ==, dmu_objset_hold(name
, FTAG
, &os
));
2884 error
= dmu_object_info(os
, ZTEST_DIROBJ
, &doi
);
2885 if (error
!= ENOENT
) {
2886 /* We could have crashed in the middle of destroying it */
2887 ASSERT3U(error
, ==, 0);
2888 ASSERT3U(doi
.doi_type
, ==, DMU_OT_ZAP_OTHER
);
2889 ASSERT3S(doi
.doi_physical_blocks_512
, >=, 0);
2891 dmu_objset_rele(os
, FTAG
);
2894 * Destroy the dataset.
2896 VERIFY3U(0, ==, dmu_objset_destroy(name
, B_FALSE
));
2901 ztest_snapshot_create(char *osname
, uint64_t id
)
2903 char snapname
[MAXNAMELEN
];
2906 (void) snprintf(snapname
, MAXNAMELEN
, "%s@%llu", osname
,
2909 error
= dmu_objset_snapshot(osname
, strchr(snapname
, '@') + 1,
2910 NULL
, NULL
, B_FALSE
, B_FALSE
, -1);
2911 if (error
== ENOSPC
) {
2912 ztest_record_enospc(FTAG
);
2915 if (error
!= 0 && error
!= EEXIST
)
2916 fatal(0, "ztest_snapshot_create(%s) = %d", snapname
, error
);
2921 ztest_snapshot_destroy(char *osname
, uint64_t id
)
2923 char snapname
[MAXNAMELEN
];
2926 (void) snprintf(snapname
, MAXNAMELEN
, "%s@%llu", osname
,
2929 error
= dmu_objset_destroy(snapname
, B_FALSE
);
2930 if (error
!= 0 && error
!= ENOENT
)
2931 fatal(0, "ztest_snapshot_destroy(%s) = %d", snapname
, error
);
2937 ztest_dmu_objset_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
2939 ztest_shared_t
*zs
= ztest_shared
;
2944 char name
[MAXNAMELEN
];
2948 (void) rw_rdlock(&zs
->zs_name_lock
);
2950 (void) snprintf(name
, MAXNAMELEN
, "%s/temp_%llu",
2951 zs
->zs_pool
, (u_longlong_t
)id
);
2954 * If this dataset exists from a previous run, process its replay log
2955 * half of the time. If we don't replay it, then dmu_objset_destroy()
2956 * (invoked from ztest_objset_destroy_cb()) should just throw it away.
2958 if (ztest_random(2) == 0 &&
2959 dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os
) == 0) {
2960 ztest_zd_init(&zdtmp
, os
);
2961 zil_replay(os
, &zdtmp
, ztest_replay_vector
);
2962 ztest_zd_fini(&zdtmp
);
2963 dmu_objset_disown(os
, FTAG
);
2967 * There may be an old instance of the dataset we're about to
2968 * create lying around from a previous run. If so, destroy it
2969 * and all of its snapshots.
2971 (void) dmu_objset_find(name
, ztest_objset_destroy_cb
, NULL
,
2972 DS_FIND_CHILDREN
| DS_FIND_SNAPSHOTS
);
2975 * Verify that the destroyed dataset is no longer in the namespace.
2977 VERIFY3U(ENOENT
, ==, dmu_objset_hold(name
, FTAG
, &os
));
2980 * Verify that we can create a new dataset.
2982 error
= ztest_dataset_create(name
);
2984 if (error
== ENOSPC
) {
2985 ztest_record_enospc(FTAG
);
2986 (void) rw_unlock(&zs
->zs_name_lock
);
2989 fatal(0, "dmu_objset_create(%s) = %d", name
, error
);
2993 dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os
));
2995 ztest_zd_init(&zdtmp
, os
);
2998 * Open the intent log for it.
3000 zilog
= zil_open(os
, ztest_get_data
);
3003 * Put some objects in there, do a little I/O to them,
3004 * and randomly take a couple of snapshots along the way.
3006 iters
= ztest_random(5);
3007 for (i
= 0; i
< iters
; i
++) {
3008 ztest_dmu_object_alloc_free(&zdtmp
, id
);
3009 if (ztest_random(iters
) == 0)
3010 (void) ztest_snapshot_create(name
, i
);
3014 * Verify that we cannot create an existing dataset.
3016 VERIFY3U(EEXIST
, ==,
3017 dmu_objset_create(name
, DMU_OST_OTHER
, 0, NULL
, NULL
));
3020 * Verify that we can hold an objset that is also owned.
3022 VERIFY3U(0, ==, dmu_objset_hold(name
, FTAG
, &os2
));
3023 dmu_objset_rele(os2
, FTAG
);
3026 * Verify that we cannot own an objset that is already owned.
3029 dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os2
));
3032 dmu_objset_disown(os
, FTAG
);
3033 ztest_zd_fini(&zdtmp
);
3035 (void) rw_unlock(&zs
->zs_name_lock
);
3039 * Verify that dmu_snapshot_{create,destroy,open,close} work as expected.
3042 ztest_dmu_snapshot_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
3044 ztest_shared_t
*zs
= ztest_shared
;
3046 (void) rw_rdlock(&zs
->zs_name_lock
);
3047 (void) ztest_snapshot_destroy(zd
->zd_name
, id
);
3048 (void) ztest_snapshot_create(zd
->zd_name
, id
);
3049 (void) rw_unlock(&zs
->zs_name_lock
);
3053 * Cleanup non-standard snapshots and clones.
3056 ztest_dsl_dataset_cleanup(char *osname
, uint64_t id
)
3058 char snap1name
[MAXNAMELEN
];
3059 char clone1name
[MAXNAMELEN
];
3060 char snap2name
[MAXNAMELEN
];
3061 char clone2name
[MAXNAMELEN
];
3062 char snap3name
[MAXNAMELEN
];
3065 (void) snprintf(snap1name
, MAXNAMELEN
, "%s@s1_%llu",
3066 osname
, (u_longlong_t
)id
);
3067 (void) snprintf(clone1name
, MAXNAMELEN
, "%s/c1_%llu",
3068 osname
, (u_longlong_t
)id
);
3069 (void) snprintf(snap2name
, MAXNAMELEN
, "%s@s2_%llu",
3070 clone1name
, (u_longlong_t
)id
);
3071 (void) snprintf(clone2name
, MAXNAMELEN
, "%s/c2_%llu",
3072 osname
, (u_longlong_t
)id
);
3073 (void) snprintf(snap3name
, MAXNAMELEN
, "%s@s3_%llu",
3074 clone1name
, (u_longlong_t
)id
);
3076 error
= dmu_objset_destroy(clone2name
, B_FALSE
);
3077 if (error
&& error
!= ENOENT
)
3078 fatal(0, "dmu_objset_destroy(%s) = %d", clone2name
, error
);
3079 error
= dmu_objset_destroy(snap3name
, B_FALSE
);
3080 if (error
&& error
!= ENOENT
)
3081 fatal(0, "dmu_objset_destroy(%s) = %d", snap3name
, error
);
3082 error
= dmu_objset_destroy(snap2name
, B_FALSE
);
3083 if (error
&& error
!= ENOENT
)
3084 fatal(0, "dmu_objset_destroy(%s) = %d", snap2name
, error
);
3085 error
= dmu_objset_destroy(clone1name
, B_FALSE
);
3086 if (error
&& error
!= ENOENT
)
3087 fatal(0, "dmu_objset_destroy(%s) = %d", clone1name
, error
);
3088 error
= dmu_objset_destroy(snap1name
, B_FALSE
);
3089 if (error
&& error
!= ENOENT
)
3090 fatal(0, "dmu_objset_destroy(%s) = %d", snap1name
, error
);
3094 * Verify dsl_dataset_promote handles EBUSY
3097 ztest_dsl_dataset_promote_busy(ztest_ds_t
*zd
, uint64_t id
)
3099 ztest_shared_t
*zs
= ztest_shared
;
3102 char snap1name
[MAXNAMELEN
];
3103 char clone1name
[MAXNAMELEN
];
3104 char snap2name
[MAXNAMELEN
];
3105 char clone2name
[MAXNAMELEN
];
3106 char snap3name
[MAXNAMELEN
];
3107 char *osname
= zd
->zd_name
;
3110 (void) rw_rdlock(&zs
->zs_name_lock
);
3112 ztest_dsl_dataset_cleanup(osname
, id
);
3114 (void) snprintf(snap1name
, MAXNAMELEN
, "%s@s1_%llu",
3115 osname
, (u_longlong_t
)id
);
3116 (void) snprintf(clone1name
, MAXNAMELEN
, "%s/c1_%llu",
3117 osname
, (u_longlong_t
)id
);
3118 (void) snprintf(snap2name
, MAXNAMELEN
, "%s@s2_%llu",
3119 clone1name
, (u_longlong_t
)id
);
3120 (void) snprintf(clone2name
, MAXNAMELEN
, "%s/c2_%llu",
3121 osname
, (u_longlong_t
)id
);
3122 (void) snprintf(snap3name
, MAXNAMELEN
, "%s@s3_%llu",
3123 clone1name
, (u_longlong_t
)id
);
3125 error
= dmu_objset_snapshot(osname
, strchr(snap1name
, '@')+1,
3126 NULL
, NULL
, B_FALSE
, B_FALSE
, -1);
3127 if (error
&& error
!= EEXIST
) {
3128 if (error
== ENOSPC
) {
3129 ztest_record_enospc(FTAG
);
3132 fatal(0, "dmu_take_snapshot(%s) = %d", snap1name
, error
);
3135 error
= dmu_objset_hold(snap1name
, FTAG
, &clone
);
3137 fatal(0, "dmu_open_snapshot(%s) = %d", snap1name
, error
);
3139 error
= dmu_objset_clone(clone1name
, dmu_objset_ds(clone
), 0);
3140 dmu_objset_rele(clone
, FTAG
);
3142 if (error
== ENOSPC
) {
3143 ztest_record_enospc(FTAG
);
3146 fatal(0, "dmu_objset_create(%s) = %d", clone1name
, error
);
3149 error
= dmu_objset_snapshot(clone1name
, strchr(snap2name
, '@')+1,
3150 NULL
, NULL
, B_FALSE
, B_FALSE
, -1);
3151 if (error
&& error
!= EEXIST
) {
3152 if (error
== ENOSPC
) {
3153 ztest_record_enospc(FTAG
);
3156 fatal(0, "dmu_open_snapshot(%s) = %d", snap2name
, error
);
3159 error
= dmu_objset_snapshot(clone1name
, strchr(snap3name
, '@')+1,
3160 NULL
, NULL
, B_FALSE
, B_FALSE
, -1);
3161 if (error
&& error
!= EEXIST
) {
3162 if (error
== ENOSPC
) {
3163 ztest_record_enospc(FTAG
);
3166 fatal(0, "dmu_open_snapshot(%s) = %d", snap3name
, error
);
3169 error
= dmu_objset_hold(snap3name
, FTAG
, &clone
);
3171 fatal(0, "dmu_open_snapshot(%s) = %d", snap3name
, error
);
3173 error
= dmu_objset_clone(clone2name
, dmu_objset_ds(clone
), 0);
3174 dmu_objset_rele(clone
, FTAG
);
3176 if (error
== ENOSPC
) {
3177 ztest_record_enospc(FTAG
);
3180 fatal(0, "dmu_objset_create(%s) = %d", clone2name
, error
);
3183 error
= dsl_dataset_own(snap2name
, B_FALSE
, FTAG
, &ds
);
3185 fatal(0, "dsl_dataset_own(%s) = %d", snap2name
, error
);
3186 error
= dsl_dataset_promote(clone2name
, NULL
);
3188 fatal(0, "dsl_dataset_promote(%s), %d, not EBUSY", clone2name
,
3190 dsl_dataset_disown(ds
, FTAG
);
3193 ztest_dsl_dataset_cleanup(osname
, id
);
3195 (void) rw_unlock(&zs
->zs_name_lock
);
3199 * Verify that dmu_object_{alloc,free} work as expected.
3202 ztest_dmu_object_alloc_free(ztest_ds_t
*zd
, uint64_t id
)
3205 int batchsize
= sizeof (od
) / sizeof (od
[0]);
3208 for (b
= 0; b
< batchsize
; b
++)
3209 ztest_od_init(&od
[b
], id
, FTAG
, b
, DMU_OT_UINT64_OTHER
, 0, 0);
3212 * Destroy the previous batch of objects, create a new batch,
3213 * and do some I/O on the new objects.
3215 if (ztest_object_init(zd
, od
, sizeof (od
), B_TRUE
) != 0)
3218 while (ztest_random(4 * batchsize
) != 0)
3219 ztest_io(zd
, od
[ztest_random(batchsize
)].od_object
,
3220 ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
3224 * Verify that dmu_{read,write} work as expected.
3227 ztest_dmu_read_write(ztest_ds_t
*zd
, uint64_t id
)
3229 objset_t
*os
= zd
->zd_os
;
3232 int i
, freeit
, error
;
3234 bufwad_t
*packbuf
, *bigbuf
, *pack
, *bigH
, *bigT
;
3235 uint64_t packobj
, packoff
, packsize
, bigobj
, bigoff
, bigsize
;
3236 uint64_t chunksize
= (1000 + ztest_random(1000)) * sizeof (uint64_t);
3237 uint64_t regions
= 997;
3238 uint64_t stride
= 123456789ULL;
3239 uint64_t width
= 40;
3240 int free_percent
= 5;
3243 * This test uses two objects, packobj and bigobj, that are always
3244 * updated together (i.e. in the same tx) so that their contents are
3245 * in sync and can be compared. Their contents relate to each other
3246 * in a simple way: packobj is a dense array of 'bufwad' structures,
3247 * while bigobj is a sparse array of the same bufwads. Specifically,
3248 * for any index n, there are three bufwads that should be identical:
3250 * packobj, at offset n * sizeof (bufwad_t)
3251 * bigobj, at the head of the nth chunk
3252 * bigobj, at the tail of the nth chunk
3254 * The chunk size is arbitrary. It doesn't have to be a power of two,
3255 * and it doesn't have any relation to the object blocksize.
3256 * The only requirement is that it can hold at least two bufwads.
3258 * Normally, we write the bufwad to each of these locations.
3259 * However, free_percent of the time we instead write zeroes to
3260 * packobj and perform a dmu_free_range() on bigobj. By comparing
3261 * bigobj to packobj, we can verify that the DMU is correctly
3262 * tracking which parts of an object are allocated and free,
3263 * and that the contents of the allocated blocks are correct.
3267 * Read the directory info. If it's the first time, set things up.
3269 ztest_od_init(&od
[0], id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, chunksize
);
3270 ztest_od_init(&od
[1], id
, FTAG
, 1, DMU_OT_UINT64_OTHER
, 0, chunksize
);
3272 if (ztest_object_init(zd
, od
, sizeof (od
), B_FALSE
) != 0)
3275 bigobj
= od
[0].od_object
;
3276 packobj
= od
[1].od_object
;
3277 chunksize
= od
[0].od_gen
;
3278 ASSERT(chunksize
== od
[1].od_gen
);
3281 * Prefetch a random chunk of the big object.
3282 * Our aim here is to get some async reads in flight
3283 * for blocks that we may free below; the DMU should
3284 * handle this race correctly.
3286 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
3287 s
= 1 + ztest_random(2 * width
- 1);
3288 dmu_prefetch(os
, bigobj
, n
* chunksize
, s
* chunksize
);
3291 * Pick a random index and compute the offsets into packobj and bigobj.
3293 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
3294 s
= 1 + ztest_random(width
- 1);
3296 packoff
= n
* sizeof (bufwad_t
);
3297 packsize
= s
* sizeof (bufwad_t
);
3299 bigoff
= n
* chunksize
;
3300 bigsize
= s
* chunksize
;
3302 packbuf
= umem_alloc(packsize
, UMEM_NOFAIL
);
3303 bigbuf
= umem_alloc(bigsize
, UMEM_NOFAIL
);
3306 * free_percent of the time, free a range of bigobj rather than
3309 freeit
= (ztest_random(100) < free_percent
);
3312 * Read the current contents of our objects.
3314 error
= dmu_read(os
, packobj
, packoff
, packsize
, packbuf
,
3316 ASSERT3U(error
, ==, 0);
3317 error
= dmu_read(os
, bigobj
, bigoff
, bigsize
, bigbuf
,
3319 ASSERT3U(error
, ==, 0);
3322 * Get a tx for the mods to both packobj and bigobj.
3324 tx
= dmu_tx_create(os
);
3326 dmu_tx_hold_write(tx
, packobj
, packoff
, packsize
);
3329 dmu_tx_hold_free(tx
, bigobj
, bigoff
, bigsize
);
3331 dmu_tx_hold_write(tx
, bigobj
, bigoff
, bigsize
);
3333 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
3335 umem_free(packbuf
, packsize
);
3336 umem_free(bigbuf
, bigsize
);
3340 dmu_object_set_checksum(os
, bigobj
,
3341 (enum zio_checksum
)ztest_random_dsl_prop(ZFS_PROP_CHECKSUM
), tx
);
3343 dmu_object_set_compress(os
, bigobj
,
3344 (enum zio_compress
)ztest_random_dsl_prop(ZFS_PROP_COMPRESSION
), tx
);
3347 * For each index from n to n + s, verify that the existing bufwad
3348 * in packobj matches the bufwads at the head and tail of the
3349 * corresponding chunk in bigobj. Then update all three bufwads
3350 * with the new values we want to write out.
3352 for (i
= 0; i
< s
; i
++) {
3354 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
3356 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* chunksize
);
3358 bigT
= (bufwad_t
*)((char *)bigH
+ chunksize
) - 1;
3360 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
3361 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
3363 if (pack
->bw_txg
> txg
)
3364 fatal(0, "future leak: got %llx, open txg is %llx",
3367 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
3368 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
3369 pack
->bw_index
, n
, i
);
3371 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
3372 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
3374 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
3375 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
3378 bzero(pack
, sizeof (bufwad_t
));
3380 pack
->bw_index
= n
+ i
;
3382 pack
->bw_data
= 1 + ztest_random(-2ULL);
3389 * We've verified all the old bufwads, and made new ones.
3390 * Now write them out.
3392 dmu_write(os
, packobj
, packoff
, packsize
, packbuf
, tx
);
3395 if (zopt_verbose
>= 7) {
3396 (void) printf("freeing offset %llx size %llx"
3398 (u_longlong_t
)bigoff
,
3399 (u_longlong_t
)bigsize
,
3402 VERIFY(0 == dmu_free_range(os
, bigobj
, bigoff
, bigsize
, tx
));
3404 if (zopt_verbose
>= 7) {
3405 (void) printf("writing offset %llx size %llx"
3407 (u_longlong_t
)bigoff
,
3408 (u_longlong_t
)bigsize
,
3411 dmu_write(os
, bigobj
, bigoff
, bigsize
, bigbuf
, tx
);
3417 * Sanity check the stuff we just wrote.
3420 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
3421 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
3423 VERIFY(0 == dmu_read(os
, packobj
, packoff
,
3424 packsize
, packcheck
, DMU_READ_PREFETCH
));
3425 VERIFY(0 == dmu_read(os
, bigobj
, bigoff
,
3426 bigsize
, bigcheck
, DMU_READ_PREFETCH
));
3428 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
3429 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
3431 umem_free(packcheck
, packsize
);
3432 umem_free(bigcheck
, bigsize
);
3435 umem_free(packbuf
, packsize
);
3436 umem_free(bigbuf
, bigsize
);
3440 compare_and_update_pbbufs(uint64_t s
, bufwad_t
*packbuf
, bufwad_t
*bigbuf
,
3441 uint64_t bigsize
, uint64_t n
, uint64_t chunksize
, uint64_t txg
)
3449 * For each index from n to n + s, verify that the existing bufwad
3450 * in packobj matches the bufwads at the head and tail of the
3451 * corresponding chunk in bigobj. Then update all three bufwads
3452 * with the new values we want to write out.
3454 for (i
= 0; i
< s
; i
++) {
3456 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
3458 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* chunksize
);
3460 bigT
= (bufwad_t
*)((char *)bigH
+ chunksize
) - 1;
3462 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
3463 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
3465 if (pack
->bw_txg
> txg
)
3466 fatal(0, "future leak: got %llx, open txg is %llx",
3469 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
3470 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
3471 pack
->bw_index
, n
, i
);
3473 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
3474 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
3476 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
3477 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
3479 pack
->bw_index
= n
+ i
;
3481 pack
->bw_data
= 1 + ztest_random(-2ULL);
3489 ztest_dmu_read_write_zcopy(ztest_ds_t
*zd
, uint64_t id
)
3491 objset_t
*os
= zd
->zd_os
;
3497 bufwad_t
*packbuf
, *bigbuf
;
3498 uint64_t packobj
, packoff
, packsize
, bigobj
, bigoff
, bigsize
;
3499 uint64_t blocksize
= ztest_random_blocksize();
3500 uint64_t chunksize
= blocksize
;
3501 uint64_t regions
= 997;
3502 uint64_t stride
= 123456789ULL;
3504 dmu_buf_t
*bonus_db
;
3505 arc_buf_t
**bigbuf_arcbufs
;
3506 dmu_object_info_t doi
;
3509 * This test uses two objects, packobj and bigobj, that are always
3510 * updated together (i.e. in the same tx) so that their contents are
3511 * in sync and can be compared. Their contents relate to each other
3512 * in a simple way: packobj is a dense array of 'bufwad' structures,
3513 * while bigobj is a sparse array of the same bufwads. Specifically,
3514 * for any index n, there are three bufwads that should be identical:
3516 * packobj, at offset n * sizeof (bufwad_t)
3517 * bigobj, at the head of the nth chunk
3518 * bigobj, at the tail of the nth chunk
3520 * The chunk size is set equal to bigobj block size so that
3521 * dmu_assign_arcbuf() can be tested for object updates.
3525 * Read the directory info. If it's the first time, set things up.
3527 ztest_od_init(&od
[0], id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0);
3528 ztest_od_init(&od
[1], id
, FTAG
, 1, DMU_OT_UINT64_OTHER
, 0, chunksize
);
3530 if (ztest_object_init(zd
, od
, sizeof (od
), B_FALSE
) != 0)
3533 bigobj
= od
[0].od_object
;
3534 packobj
= od
[1].od_object
;
3535 blocksize
= od
[0].od_blocksize
;
3536 chunksize
= blocksize
;
3537 ASSERT(chunksize
== od
[1].od_gen
);
3539 VERIFY(dmu_object_info(os
, bigobj
, &doi
) == 0);
3540 VERIFY(ISP2(doi
.doi_data_block_size
));
3541 VERIFY(chunksize
== doi
.doi_data_block_size
);
3542 VERIFY(chunksize
>= 2 * sizeof (bufwad_t
));
3545 * Pick a random index and compute the offsets into packobj and bigobj.
3547 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
3548 s
= 1 + ztest_random(width
- 1);
3550 packoff
= n
* sizeof (bufwad_t
);
3551 packsize
= s
* sizeof (bufwad_t
);
3553 bigoff
= n
* chunksize
;
3554 bigsize
= s
* chunksize
;
3556 packbuf
= umem_zalloc(packsize
, UMEM_NOFAIL
);
3557 bigbuf
= umem_zalloc(bigsize
, UMEM_NOFAIL
);
3559 VERIFY3U(0, ==, dmu_bonus_hold(os
, bigobj
, FTAG
, &bonus_db
));
3561 bigbuf_arcbufs
= umem_zalloc(2 * s
* sizeof (arc_buf_t
*), UMEM_NOFAIL
);
3564 * Iteration 0 test zcopy for DB_UNCACHED dbufs.
3565 * Iteration 1 test zcopy to already referenced dbufs.
3566 * Iteration 2 test zcopy to dirty dbuf in the same txg.
3567 * Iteration 3 test zcopy to dbuf dirty in previous txg.
3568 * Iteration 4 test zcopy when dbuf is no longer dirty.
3569 * Iteration 5 test zcopy when it can't be done.
3570 * Iteration 6 one more zcopy write.
3572 for (i
= 0; i
< 7; i
++) {
3577 * In iteration 5 (i == 5) use arcbufs
3578 * that don't match bigobj blksz to test
3579 * dmu_assign_arcbuf() when it can't directly
3580 * assign an arcbuf to a dbuf.
3582 for (j
= 0; j
< s
; j
++) {
3585 dmu_request_arcbuf(bonus_db
, chunksize
);
3587 bigbuf_arcbufs
[2 * j
] =
3588 dmu_request_arcbuf(bonus_db
, chunksize
/ 2);
3589 bigbuf_arcbufs
[2 * j
+ 1] =
3590 dmu_request_arcbuf(bonus_db
, chunksize
/ 2);
3595 * Get a tx for the mods to both packobj and bigobj.
3597 tx
= dmu_tx_create(os
);
3599 dmu_tx_hold_write(tx
, packobj
, packoff
, packsize
);
3600 dmu_tx_hold_write(tx
, bigobj
, bigoff
, bigsize
);
3602 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
3604 umem_free(packbuf
, packsize
);
3605 umem_free(bigbuf
, bigsize
);
3606 for (j
= 0; j
< s
; j
++) {
3608 dmu_return_arcbuf(bigbuf_arcbufs
[j
]);
3611 bigbuf_arcbufs
[2 * j
]);
3613 bigbuf_arcbufs
[2 * j
+ 1]);
3616 umem_free(bigbuf_arcbufs
, 2 * s
* sizeof (arc_buf_t
*));
3617 dmu_buf_rele(bonus_db
, FTAG
);
3622 * 50% of the time don't read objects in the 1st iteration to
3623 * test dmu_assign_arcbuf() for the case when there're no
3624 * existing dbufs for the specified offsets.
3626 if (i
!= 0 || ztest_random(2) != 0) {
3627 error
= dmu_read(os
, packobj
, packoff
,
3628 packsize
, packbuf
, DMU_READ_PREFETCH
);
3629 ASSERT3U(error
, ==, 0);
3630 error
= dmu_read(os
, bigobj
, bigoff
, bigsize
,
3631 bigbuf
, DMU_READ_PREFETCH
);
3632 ASSERT3U(error
, ==, 0);
3634 compare_and_update_pbbufs(s
, packbuf
, bigbuf
, bigsize
,
3638 * We've verified all the old bufwads, and made new ones.
3639 * Now write them out.
3641 dmu_write(os
, packobj
, packoff
, packsize
, packbuf
, tx
);
3642 if (zopt_verbose
>= 7) {
3643 (void) printf("writing offset %llx size %llx"
3645 (u_longlong_t
)bigoff
,
3646 (u_longlong_t
)bigsize
,
3649 for (off
= bigoff
, j
= 0; j
< s
; j
++, off
+= chunksize
) {
3652 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
),
3653 bigbuf_arcbufs
[j
]->b_data
, chunksize
);
3655 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
),
3656 bigbuf_arcbufs
[2 * j
]->b_data
,
3658 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
) +
3660 bigbuf_arcbufs
[2 * j
+ 1]->b_data
,
3665 VERIFY(dmu_buf_hold(os
, bigobj
, off
,
3666 FTAG
, &dbt
, DMU_READ_NO_PREFETCH
) == 0);
3669 dmu_assign_arcbuf(bonus_db
, off
,
3670 bigbuf_arcbufs
[j
], tx
);
3672 dmu_assign_arcbuf(bonus_db
, off
,
3673 bigbuf_arcbufs
[2 * j
], tx
);
3674 dmu_assign_arcbuf(bonus_db
,
3675 off
+ chunksize
/ 2,
3676 bigbuf_arcbufs
[2 * j
+ 1], tx
);
3679 dmu_buf_rele(dbt
, FTAG
);
3685 * Sanity check the stuff we just wrote.
3688 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
3689 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
3691 VERIFY(0 == dmu_read(os
, packobj
, packoff
,
3692 packsize
, packcheck
, DMU_READ_PREFETCH
));
3693 VERIFY(0 == dmu_read(os
, bigobj
, bigoff
,
3694 bigsize
, bigcheck
, DMU_READ_PREFETCH
));
3696 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
3697 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
3699 umem_free(packcheck
, packsize
);
3700 umem_free(bigcheck
, bigsize
);
3703 txg_wait_open(dmu_objset_pool(os
), 0);
3704 } else if (i
== 3) {
3705 txg_wait_synced(dmu_objset_pool(os
), 0);
3709 dmu_buf_rele(bonus_db
, FTAG
);
3710 umem_free(packbuf
, packsize
);
3711 umem_free(bigbuf
, bigsize
);
3712 umem_free(bigbuf_arcbufs
, 2 * s
* sizeof (arc_buf_t
*));
3717 ztest_dmu_write_parallel(ztest_ds_t
*zd
, uint64_t id
)
3720 uint64_t offset
= (1ULL << (ztest_random(20) + 43)) +
3721 (ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
3724 * Have multiple threads write to large offsets in an object
3725 * to verify that parallel writes to an object -- even to the
3726 * same blocks within the object -- doesn't cause any trouble.
3728 ztest_od_init(&od
[0], ID_PARALLEL
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0);
3730 if (ztest_object_init(zd
, od
, sizeof (od
), B_FALSE
) != 0)
3733 while (ztest_random(10) != 0)
3734 ztest_io(zd
, od
[0].od_object
, offset
);
3738 ztest_dmu_prealloc(ztest_ds_t
*zd
, uint64_t id
)
3741 uint64_t offset
= (1ULL << (ztest_random(4) + SPA_MAXBLOCKSHIFT
)) +
3742 (ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
3743 uint64_t count
= ztest_random(20) + 1;
3744 uint64_t blocksize
= ztest_random_blocksize();
3747 ztest_od_init(&od
[0], id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0);
3749 if (ztest_object_init(zd
, od
, sizeof (od
), !ztest_random(2)) != 0)
3752 if (ztest_truncate(zd
, od
[0].od_object
, offset
, count
* blocksize
) != 0)
3755 ztest_prealloc(zd
, od
[0].od_object
, offset
, count
* blocksize
);
3757 data
= umem_zalloc(blocksize
, UMEM_NOFAIL
);
3759 while (ztest_random(count
) != 0) {
3760 uint64_t randoff
= offset
+ (ztest_random(count
) * blocksize
);
3761 if (ztest_write(zd
, od
[0].od_object
, randoff
, blocksize
,
3764 while (ztest_random(4) != 0)
3765 ztest_io(zd
, od
[0].od_object
, randoff
);
3768 umem_free(data
, blocksize
);
3772 * Verify that zap_{create,destroy,add,remove,update} work as expected.
3774 #define ZTEST_ZAP_MIN_INTS 1
3775 #define ZTEST_ZAP_MAX_INTS 4
3776 #define ZTEST_ZAP_MAX_PROPS 1000
3779 ztest_zap(ztest_ds_t
*zd
, uint64_t id
)
3781 objset_t
*os
= zd
->zd_os
;
3784 uint64_t txg
, last_txg
;
3785 uint64_t value
[ZTEST_ZAP_MAX_INTS
];
3786 uint64_t zl_ints
, zl_intsize
, prop
;
3789 char propname
[100], txgname
[100];
3791 char *hc
[2] = { "s.acl.h", ".s.open.h.hyLZlg" };
3793 ztest_od_init(&od
[0], id
, FTAG
, 0, DMU_OT_ZAP_OTHER
, 0, 0);
3795 if (ztest_object_init(zd
, od
, sizeof (od
), !ztest_random(2)) != 0)
3798 object
= od
[0].od_object
;
3801 * Generate a known hash collision, and verify that
3802 * we can lookup and remove both entries.
3804 tx
= dmu_tx_create(os
);
3805 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
3806 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
3809 for (i
= 0; i
< 2; i
++) {
3811 VERIFY3U(0, ==, zap_add(os
, object
, hc
[i
], sizeof (uint64_t),
3814 for (i
= 0; i
< 2; i
++) {
3815 VERIFY3U(EEXIST
, ==, zap_add(os
, object
, hc
[i
],
3816 sizeof (uint64_t), 1, &value
[i
], tx
));
3818 zap_length(os
, object
, hc
[i
], &zl_intsize
, &zl_ints
));
3819 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
3820 ASSERT3U(zl_ints
, ==, 1);
3822 for (i
= 0; i
< 2; i
++) {
3823 VERIFY3U(0, ==, zap_remove(os
, object
, hc
[i
], tx
));
3828 * Generate a buch of random entries.
3830 ints
= MAX(ZTEST_ZAP_MIN_INTS
, object
% ZTEST_ZAP_MAX_INTS
);
3832 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
3833 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
3834 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
3835 bzero(value
, sizeof (value
));
3839 * If these zap entries already exist, validate their contents.
3841 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
3843 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
3844 ASSERT3U(zl_ints
, ==, 1);
3846 VERIFY(zap_lookup(os
, object
, txgname
, zl_intsize
,
3847 zl_ints
, &last_txg
) == 0);
3849 VERIFY(zap_length(os
, object
, propname
, &zl_intsize
,
3852 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
3853 ASSERT3U(zl_ints
, ==, ints
);
3855 VERIFY(zap_lookup(os
, object
, propname
, zl_intsize
,
3856 zl_ints
, value
) == 0);
3858 for (i
= 0; i
< ints
; i
++) {
3859 ASSERT3U(value
[i
], ==, last_txg
+ object
+ i
);
3862 ASSERT3U(error
, ==, ENOENT
);
3866 * Atomically update two entries in our zap object.
3867 * The first is named txg_%llu, and contains the txg
3868 * in which the property was last updated. The second
3869 * is named prop_%llu, and the nth element of its value
3870 * should be txg + object + n.
3872 tx
= dmu_tx_create(os
);
3873 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
3874 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
3879 fatal(0, "zap future leak: old %llu new %llu", last_txg
, txg
);
3881 for (i
= 0; i
< ints
; i
++)
3882 value
[i
] = txg
+ object
+ i
;
3884 VERIFY3U(0, ==, zap_update(os
, object
, txgname
, sizeof (uint64_t),
3886 VERIFY3U(0, ==, zap_update(os
, object
, propname
, sizeof (uint64_t),
3892 * Remove a random pair of entries.
3894 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
3895 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
3896 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
3898 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
3900 if (error
== ENOENT
)
3903 ASSERT3U(error
, ==, 0);
3905 tx
= dmu_tx_create(os
);
3906 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
3907 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
3910 VERIFY3U(0, ==, zap_remove(os
, object
, txgname
, tx
));
3911 VERIFY3U(0, ==, zap_remove(os
, object
, propname
, tx
));
3916 * Testcase to test the upgrading of a microzap to fatzap.
3919 ztest_fzap(ztest_ds_t
*zd
, uint64_t id
)
3921 objset_t
*os
= zd
->zd_os
;
3923 uint64_t object
, txg
;
3926 ztest_od_init(&od
[0], id
, FTAG
, 0, DMU_OT_ZAP_OTHER
, 0, 0);
3928 if (ztest_object_init(zd
, od
, sizeof (od
), !ztest_random(2)) != 0)
3931 object
= od
[0].od_object
;
3934 * Add entries to this ZAP and make sure it spills over
3935 * and gets upgraded to a fatzap. Also, since we are adding
3936 * 2050 entries we should see ptrtbl growth and leaf-block split.
3938 for (i
= 0; i
< 2050; i
++) {
3939 char name
[MAXNAMELEN
];
3944 (void) snprintf(name
, sizeof (name
), "fzap-%llu-%llu",
3945 (u_longlong_t
)id
, (u_longlong_t
)value
);
3947 tx
= dmu_tx_create(os
);
3948 dmu_tx_hold_zap(tx
, object
, B_TRUE
, name
);
3949 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
3952 error
= zap_add(os
, object
, name
, sizeof (uint64_t), 1,
3954 ASSERT(error
== 0 || error
== EEXIST
);
3961 ztest_zap_parallel(ztest_ds_t
*zd
, uint64_t id
)
3963 objset_t
*os
= zd
->zd_os
;
3965 uint64_t txg
, object
, count
, wsize
, wc
, zl_wsize
, zl_wc
;
3967 int i
, namelen
, error
;
3968 int micro
= ztest_random(2);
3969 char name
[20], string_value
[20];
3972 ztest_od_init(&od
[0], ID_PARALLEL
, FTAG
, micro
, DMU_OT_ZAP_OTHER
, 0, 0);
3974 if (ztest_object_init(zd
, od
, sizeof (od
), B_FALSE
) != 0)
3977 object
= od
[0].od_object
;
3980 * Generate a random name of the form 'xxx.....' where each
3981 * x is a random printable character and the dots are dots.
3982 * There are 94 such characters, and the name length goes from
3983 * 6 to 20, so there are 94^3 * 15 = 12,458,760 possible names.
3985 namelen
= ztest_random(sizeof (name
) - 5) + 5 + 1;
3987 for (i
= 0; i
< 3; i
++)
3988 name
[i
] = '!' + ztest_random('~' - '!' + 1);
3989 for (; i
< namelen
- 1; i
++)
3993 if ((namelen
& 1) || micro
) {
3994 wsize
= sizeof (txg
);
4000 data
= string_value
;
4004 VERIFY(zap_count(os
, object
, &count
) == 0);
4005 ASSERT(count
!= -1ULL);
4008 * Select an operation: length, lookup, add, update, remove.
4010 i
= ztest_random(5);
4013 tx
= dmu_tx_create(os
);
4014 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4015 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4018 bcopy(name
, string_value
, namelen
);
4022 bzero(string_value
, namelen
);
4028 error
= zap_length(os
, object
, name
, &zl_wsize
, &zl_wc
);
4030 ASSERT3U(wsize
, ==, zl_wsize
);
4031 ASSERT3U(wc
, ==, zl_wc
);
4033 ASSERT3U(error
, ==, ENOENT
);
4038 error
= zap_lookup(os
, object
, name
, wsize
, wc
, data
);
4040 if (data
== string_value
&&
4041 bcmp(name
, data
, namelen
) != 0)
4042 fatal(0, "name '%s' != val '%s' len %d",
4043 name
, data
, namelen
);
4045 ASSERT3U(error
, ==, ENOENT
);
4050 error
= zap_add(os
, object
, name
, wsize
, wc
, data
, tx
);
4051 ASSERT(error
== 0 || error
== EEXIST
);
4055 VERIFY(zap_update(os
, object
, name
, wsize
, wc
, data
, tx
) == 0);
4059 error
= zap_remove(os
, object
, name
, tx
);
4060 ASSERT(error
== 0 || error
== ENOENT
);
4069 * Commit callback data.
4071 typedef struct ztest_cb_data
{
4072 list_node_t zcd_node
;
4074 int zcd_expected_err
;
4075 boolean_t zcd_added
;
4076 boolean_t zcd_called
;
4080 /* This is the actual commit callback function */
4082 ztest_commit_callback(void *arg
, int error
)
4084 ztest_cb_data_t
*data
= arg
;
4085 uint64_t synced_txg
;
4087 VERIFY(data
!= NULL
);
4088 VERIFY3S(data
->zcd_expected_err
, ==, error
);
4089 VERIFY(!data
->zcd_called
);
4091 synced_txg
= spa_last_synced_txg(data
->zcd_spa
);
4092 if (data
->zcd_txg
> synced_txg
)
4093 fatal(0, "commit callback of txg %" PRIu64
" called prematurely"
4094 ", last synced txg = %" PRIu64
"\n", data
->zcd_txg
,
4097 data
->zcd_called
= B_TRUE
;
4099 if (error
== ECANCELED
) {
4100 ASSERT3U(data
->zcd_txg
, ==, 0);
4101 ASSERT(!data
->zcd_added
);
4104 * The private callback data should be destroyed here, but
4105 * since we are going to check the zcd_called field after
4106 * dmu_tx_abort(), we will destroy it there.
4111 ASSERT(data
->zcd_added
);
4112 ASSERT3U(data
->zcd_txg
, !=, 0);
4114 (void) mutex_lock(&zcl
.zcl_callbacks_lock
);
4116 /* See if this cb was called more quickly */
4117 if ((synced_txg
- data
->zcd_txg
) < zc_min_txg_delay
)
4118 zc_min_txg_delay
= synced_txg
- data
->zcd_txg
;
4120 /* Remove our callback from the list */
4121 list_remove(&zcl
.zcl_callbacks
, data
);
4123 (void) mutex_unlock(&zcl
.zcl_callbacks_lock
);
4125 umem_free(data
, sizeof (ztest_cb_data_t
));
4128 /* Allocate and initialize callback data structure */
4129 static ztest_cb_data_t
*
4130 ztest_create_cb_data(objset_t
*os
, uint64_t txg
)
4132 ztest_cb_data_t
*cb_data
;
4134 cb_data
= umem_zalloc(sizeof (ztest_cb_data_t
), UMEM_NOFAIL
);
4136 cb_data
->zcd_txg
= txg
;
4137 cb_data
->zcd_spa
= dmu_objset_spa(os
);
4143 * Commit callback test.
4146 ztest_dmu_commit_callbacks(ztest_ds_t
*zd
, uint64_t id
)
4148 objset_t
*os
= zd
->zd_os
;
4151 ztest_cb_data_t
*cb_data
[3], *tmp_cb
;
4152 uint64_t old_txg
, txg
;
4155 ztest_od_init(&od
[0], id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0);
4157 if (ztest_object_init(zd
, od
, sizeof (od
), B_FALSE
) != 0)
4160 tx
= dmu_tx_create(os
);
4162 cb_data
[0] = ztest_create_cb_data(os
, 0);
4163 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[0]);
4165 dmu_tx_hold_write(tx
, od
[0].od_object
, 0, sizeof (uint64_t));
4167 /* Every once in a while, abort the transaction on purpose */
4168 if (ztest_random(100) == 0)
4172 error
= dmu_tx_assign(tx
, TXG_NOWAIT
);
4174 txg
= error
? 0 : dmu_tx_get_txg(tx
);
4176 cb_data
[0]->zcd_txg
= txg
;
4177 cb_data
[1] = ztest_create_cb_data(os
, txg
);
4178 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[1]);
4182 * It's not a strict requirement to call the registered
4183 * callbacks from inside dmu_tx_abort(), but that's what
4184 * it's supposed to happen in the current implementation
4185 * so we will check for that.
4187 for (i
= 0; i
< 2; i
++) {
4188 cb_data
[i
]->zcd_expected_err
= ECANCELED
;
4189 VERIFY(!cb_data
[i
]->zcd_called
);
4194 for (i
= 0; i
< 2; i
++) {
4195 VERIFY(cb_data
[i
]->zcd_called
);
4196 umem_free(cb_data
[i
], sizeof (ztest_cb_data_t
));
4202 cb_data
[2] = ztest_create_cb_data(os
, txg
);
4203 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[2]);
4206 * Read existing data to make sure there isn't a future leak.
4208 VERIFY(0 == dmu_read(os
, od
[0].od_object
, 0, sizeof (uint64_t),
4209 &old_txg
, DMU_READ_PREFETCH
));
4212 fatal(0, "future leak: got %" PRIu64
", open txg is %" PRIu64
,
4215 dmu_write(os
, od
[0].od_object
, 0, sizeof (uint64_t), &txg
, tx
);
4217 (void) mutex_lock(&zcl
.zcl_callbacks_lock
);
4220 * Since commit callbacks don't have any ordering requirement and since
4221 * it is theoretically possible for a commit callback to be called
4222 * after an arbitrary amount of time has elapsed since its txg has been
4223 * synced, it is difficult to reliably determine whether a commit
4224 * callback hasn't been called due to high load or due to a flawed
4227 * In practice, we will assume that if after a certain number of txgs a
4228 * commit callback hasn't been called, then most likely there's an
4229 * implementation bug..
4231 tmp_cb
= list_head(&zcl
.zcl_callbacks
);
4232 if (tmp_cb
!= NULL
&&
4233 tmp_cb
->zcd_txg
+ ZTEST_COMMIT_CB_THRESH
< txg
) {
4234 fatal(0, "Commit callback threshold exceeded, oldest txg: %"
4235 PRIu64
", open txg: %" PRIu64
"\n", tmp_cb
->zcd_txg
, txg
);
4239 * Let's find the place to insert our callbacks.
4241 * Even though the list is ordered by txg, it is possible for the
4242 * insertion point to not be the end because our txg may already be
4243 * quiescing at this point and other callbacks in the open txg
4244 * (from other objsets) may have sneaked in.
4246 tmp_cb
= list_tail(&zcl
.zcl_callbacks
);
4247 while (tmp_cb
!= NULL
&& tmp_cb
->zcd_txg
> txg
)
4248 tmp_cb
= list_prev(&zcl
.zcl_callbacks
, tmp_cb
);
4250 /* Add the 3 callbacks to the list */
4251 for (i
= 0; i
< 3; i
++) {
4253 list_insert_head(&zcl
.zcl_callbacks
, cb_data
[i
]);
4255 list_insert_after(&zcl
.zcl_callbacks
, tmp_cb
,
4258 cb_data
[i
]->zcd_added
= B_TRUE
;
4259 VERIFY(!cb_data
[i
]->zcd_called
);
4261 tmp_cb
= cb_data
[i
];
4266 (void) mutex_unlock(&zcl
.zcl_callbacks_lock
);
4273 ztest_dsl_prop_get_set(ztest_ds_t
*zd
, uint64_t id
)
4275 zfs_prop_t proplist
[] = {
4277 ZFS_PROP_COMPRESSION
,
4281 ztest_shared_t
*zs
= ztest_shared
;
4284 (void) rw_rdlock(&zs
->zs_name_lock
);
4286 for (p
= 0; p
< sizeof (proplist
) / sizeof (proplist
[0]); p
++)
4287 (void) ztest_dsl_prop_set_uint64(zd
->zd_name
, proplist
[p
],
4288 ztest_random_dsl_prop(proplist
[p
]), (int)ztest_random(2));
4290 (void) rw_unlock(&zs
->zs_name_lock
);
4295 ztest_spa_prop_get_set(ztest_ds_t
*zd
, uint64_t id
)
4297 ztest_shared_t
*zs
= ztest_shared
;
4298 nvlist_t
*props
= NULL
;
4300 (void) rw_rdlock(&zs
->zs_name_lock
);
4302 (void) ztest_spa_prop_set_uint64(zs
, ZPOOL_PROP_DEDUPDITTO
,
4303 ZIO_DEDUPDITTO_MIN
+ ztest_random(ZIO_DEDUPDITTO_MIN
));
4305 VERIFY3U(spa_prop_get(zs
->zs_spa
, &props
), ==, 0);
4307 if (zopt_verbose
>= 6)
4308 dump_nvlist(props
, 4);
4312 (void) rw_unlock(&zs
->zs_name_lock
);
4316 * Test snapshot hold/release and deferred destroy.
4319 ztest_dmu_snapshot_hold(ztest_ds_t
*zd
, uint64_t id
)
4322 objset_t
*os
= zd
->zd_os
;
4326 char clonename
[100];
4328 char osname
[MAXNAMELEN
];
4330 (void) rw_rdlock(&ztest_shared
->zs_name_lock
);
4332 dmu_objset_name(os
, osname
);
4334 (void) snprintf(snapname
, 100, "sh1_%llu", id
);
4335 (void) snprintf(fullname
, 100, "%s@%s", osname
, snapname
);
4336 (void) snprintf(clonename
, 100, "%s/ch1_%llu", osname
, id
);
4337 (void) snprintf(tag
, 100, "%tag_%llu", id
);
4340 * Clean up from any previous run.
4342 (void) dmu_objset_destroy(clonename
, B_FALSE
);
4343 (void) dsl_dataset_user_release(osname
, snapname
, tag
, B_FALSE
);
4344 (void) dmu_objset_destroy(fullname
, B_FALSE
);
4347 * Create snapshot, clone it, mark snap for deferred destroy,
4348 * destroy clone, verify snap was also destroyed.
4350 error
= dmu_objset_snapshot(osname
, snapname
, NULL
, NULL
, FALSE
,
4353 if (error
== ENOSPC
) {
4354 ztest_record_enospc("dmu_objset_snapshot");
4357 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname
, error
);
4360 error
= dmu_objset_hold(fullname
, FTAG
, &origin
);
4362 fatal(0, "dmu_objset_hold(%s) = %d", fullname
, error
);
4364 error
= dmu_objset_clone(clonename
, dmu_objset_ds(origin
), 0);
4365 dmu_objset_rele(origin
, FTAG
);
4367 if (error
== ENOSPC
) {
4368 ztest_record_enospc("dmu_objset_clone");
4371 fatal(0, "dmu_objset_clone(%s) = %d", clonename
, error
);
4374 error
= dmu_objset_destroy(fullname
, B_TRUE
);
4376 fatal(0, "dmu_objset_destroy(%s, B_TRUE) = %d",
4380 error
= dmu_objset_destroy(clonename
, B_FALSE
);
4382 fatal(0, "dmu_objset_destroy(%s) = %d", clonename
, error
);
4384 error
= dmu_objset_hold(fullname
, FTAG
, &origin
);
4385 if (error
!= ENOENT
)
4386 fatal(0, "dmu_objset_hold(%s) = %d", fullname
, error
);
4389 * Create snapshot, add temporary hold, verify that we can't
4390 * destroy a held snapshot, mark for deferred destroy,
4391 * release hold, verify snapshot was destroyed.
4393 error
= dmu_objset_snapshot(osname
, snapname
, NULL
, NULL
, FALSE
,
4396 if (error
== ENOSPC
) {
4397 ztest_record_enospc("dmu_objset_snapshot");
4400 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname
, error
);
4403 error
= dsl_dataset_user_hold(osname
, snapname
, tag
, B_FALSE
,
4406 fatal(0, "dsl_dataset_user_hold(%s)", fullname
, tag
);
4408 error
= dmu_objset_destroy(fullname
, B_FALSE
);
4409 if (error
!= EBUSY
) {
4410 fatal(0, "dmu_objset_destroy(%s, B_FALSE) = %d",
4414 error
= dmu_objset_destroy(fullname
, B_TRUE
);
4416 fatal(0, "dmu_objset_destroy(%s, B_TRUE) = %d",
4420 error
= dsl_dataset_user_release(osname
, snapname
, tag
, B_FALSE
);
4422 fatal(0, "dsl_dataset_user_release(%s)", fullname
, tag
);
4424 VERIFY(dmu_objset_hold(fullname
, FTAG
, &origin
) == ENOENT
);
4427 (void) rw_unlock(&ztest_shared
->zs_name_lock
);
4431 * Inject random faults into the on-disk data.
4435 ztest_fault_inject(ztest_ds_t
*zd
, uint64_t id
)
4437 ztest_shared_t
*zs
= ztest_shared
;
4438 spa_t
*spa
= zs
->zs_spa
;
4442 uint64_t bad
= 0x1990c0ffeedecadeull
;
4444 char path0
[MAXPATHLEN
];
4445 char pathrand
[MAXPATHLEN
];
4447 int bshift
= SPA_MAXBLOCKSHIFT
+ 2; /* don't scrog all labels */
4453 boolean_t islog
= B_FALSE
;
4455 VERIFY(mutex_lock(&zs
->zs_vdev_lock
) == 0);
4456 maxfaults
= MAXFAULTS();
4457 leaves
= MAX(zs
->zs_mirrors
, 1) * zopt_raidz
;
4458 mirror_save
= zs
->zs_mirrors
;
4459 VERIFY(mutex_unlock(&zs
->zs_vdev_lock
) == 0);
4461 ASSERT(leaves
>= 1);
4464 * We need SCL_STATE here because we're going to look at vd0->vdev_tsd.
4466 spa_config_enter(spa
, SCL_STATE
, FTAG
, RW_READER
);
4468 if (ztest_random(2) == 0) {
4470 * Inject errors on a normal data device or slog device.
4472 top
= ztest_random_vdev_top(spa
, B_TRUE
);
4473 leaf
= ztest_random(leaves
) + zs
->zs_splits
;
4476 * Generate paths to the first leaf in this top-level vdev,
4477 * and to the random leaf we selected. We'll induce transient
4478 * write failures and random online/offline activity on leaf 0,
4479 * and we'll write random garbage to the randomly chosen leaf.
4481 (void) snprintf(path0
, sizeof (path0
), ztest_dev_template
,
4482 zopt_dir
, zopt_pool
, top
* leaves
+ zs
->zs_splits
);
4483 (void) snprintf(pathrand
, sizeof (pathrand
), ztest_dev_template
,
4484 zopt_dir
, zopt_pool
, top
* leaves
+ leaf
);
4486 vd0
= vdev_lookup_by_path(spa
->spa_root_vdev
, path0
);
4487 if (vd0
!= NULL
&& vd0
->vdev_top
->vdev_islog
)
4490 if (vd0
!= NULL
&& maxfaults
!= 1) {
4492 * Make vd0 explicitly claim to be unreadable,
4493 * or unwriteable, or reach behind its back
4494 * and close the underlying fd. We can do this if
4495 * maxfaults == 0 because we'll fail and reexecute,
4496 * and we can do it if maxfaults >= 2 because we'll
4497 * have enough redundancy. If maxfaults == 1, the
4498 * combination of this with injection of random data
4499 * corruption below exceeds the pool's fault tolerance.
4501 vdev_file_t
*vf
= vd0
->vdev_tsd
;
4503 if (vf
!= NULL
&& ztest_random(3) == 0) {
4504 (void) close(vf
->vf_vnode
->v_fd
);
4505 vf
->vf_vnode
->v_fd
= -1;
4506 } else if (ztest_random(2) == 0) {
4507 vd0
->vdev_cant_read
= B_TRUE
;
4509 vd0
->vdev_cant_write
= B_TRUE
;
4511 guid0
= vd0
->vdev_guid
;
4515 * Inject errors on an l2cache device.
4517 spa_aux_vdev_t
*sav
= &spa
->spa_l2cache
;
4519 if (sav
->sav_count
== 0) {
4520 spa_config_exit(spa
, SCL_STATE
, FTAG
);
4523 vd0
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)];
4524 guid0
= vd0
->vdev_guid
;
4525 (void) strcpy(path0
, vd0
->vdev_path
);
4526 (void) strcpy(pathrand
, vd0
->vdev_path
);
4530 maxfaults
= INT_MAX
; /* no limit on cache devices */
4533 spa_config_exit(spa
, SCL_STATE
, FTAG
);
4536 * If we can tolerate two or more faults, or we're dealing
4537 * with a slog, randomly online/offline vd0.
4539 if ((maxfaults
>= 2 || islog
) && guid0
!= 0) {
4540 if (ztest_random(10) < 6) {
4541 int flags
= (ztest_random(2) == 0 ?
4542 ZFS_OFFLINE_TEMPORARY
: 0);
4545 * We have to grab the zs_name_lock as writer to
4546 * prevent a race between offlining a slog and
4547 * destroying a dataset. Offlining the slog will
4548 * grab a reference on the dataset which may cause
4549 * dmu_objset_destroy() to fail with EBUSY thus
4550 * leaving the dataset in an inconsistent state.
4553 (void) rw_wrlock(&ztest_shared
->zs_name_lock
);
4555 VERIFY(vdev_offline(spa
, guid0
, flags
) != EBUSY
);
4558 (void) rw_unlock(&ztest_shared
->zs_name_lock
);
4560 (void) vdev_online(spa
, guid0
, 0, NULL
);
4568 * We have at least single-fault tolerance, so inject data corruption.
4570 fd
= open(pathrand
, O_RDWR
);
4572 if (fd
== -1) /* we hit a gap in the device namespace */
4575 fsize
= lseek(fd
, 0, SEEK_END
);
4577 while (--iters
!= 0) {
4578 offset
= ztest_random(fsize
/ (leaves
<< bshift
)) *
4579 (leaves
<< bshift
) + (leaf
<< bshift
) +
4580 (ztest_random(1ULL << (bshift
- 1)) & -8ULL);
4582 if (offset
>= fsize
)
4585 VERIFY(mutex_lock(&zs
->zs_vdev_lock
) == 0);
4586 if (mirror_save
!= zs
->zs_mirrors
) {
4587 VERIFY(mutex_unlock(&zs
->zs_vdev_lock
) == 0);
4592 if (pwrite(fd
, &bad
, sizeof (bad
), offset
) != sizeof (bad
))
4593 fatal(1, "can't inject bad word at 0x%llx in %s",
4596 VERIFY(mutex_unlock(&zs
->zs_vdev_lock
) == 0);
4598 if (zopt_verbose
>= 7)
4599 (void) printf("injected bad word into %s,"
4600 " offset 0x%llx\n", pathrand
, (u_longlong_t
)offset
);
4607 * Verify that DDT repair works as expected.
4610 ztest_ddt_repair(ztest_ds_t
*zd
, uint64_t id
)
4612 ztest_shared_t
*zs
= ztest_shared
;
4613 spa_t
*spa
= zs
->zs_spa
;
4614 objset_t
*os
= zd
->zd_os
;
4616 uint64_t object
, blocksize
, txg
, pattern
, psize
;
4617 enum zio_checksum checksum
= spa_dedup_checksum(spa
);
4622 int copies
= 2 * ZIO_DEDUPDITTO_MIN
;
4625 blocksize
= ztest_random_blocksize();
4626 blocksize
= MIN(blocksize
, 2048); /* because we write so many */
4628 ztest_od_init(&od
[0], id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0);
4630 if (ztest_object_init(zd
, od
, sizeof (od
), B_FALSE
) != 0)
4634 * Take the name lock as writer to prevent anyone else from changing
4635 * the pool and dataset properies we need to maintain during this test.
4637 (void) rw_wrlock(&zs
->zs_name_lock
);
4639 if (ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_DEDUP
, checksum
,
4641 ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_COPIES
, 1,
4643 (void) rw_unlock(&zs
->zs_name_lock
);
4647 object
= od
[0].od_object
;
4648 blocksize
= od
[0].od_blocksize
;
4649 pattern
= spa_guid(spa
) ^ dmu_objset_fsid_guid(os
);
4651 ASSERT(object
!= 0);
4653 tx
= dmu_tx_create(os
);
4654 dmu_tx_hold_write(tx
, object
, 0, copies
* blocksize
);
4655 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
4657 (void) rw_unlock(&zs
->zs_name_lock
);
4662 * Write all the copies of our block.
4664 for (i
= 0; i
< copies
; i
++) {
4665 uint64_t offset
= i
* blocksize
;
4666 VERIFY(dmu_buf_hold(os
, object
, offset
, FTAG
, &db
,
4667 DMU_READ_NO_PREFETCH
) == 0);
4668 ASSERT(db
->db_offset
== offset
);
4669 ASSERT(db
->db_size
== blocksize
);
4670 ASSERT(ztest_pattern_match(db
->db_data
, db
->db_size
, pattern
) ||
4671 ztest_pattern_match(db
->db_data
, db
->db_size
, 0ULL));
4672 dmu_buf_will_fill(db
, tx
);
4673 ztest_pattern_set(db
->db_data
, db
->db_size
, pattern
);
4674 dmu_buf_rele(db
, FTAG
);
4678 txg_wait_synced(spa_get_dsl(spa
), txg
);
4681 * Find out what block we got.
4683 VERIFY(dmu_buf_hold(os
, object
, 0, FTAG
, &db
,
4684 DMU_READ_NO_PREFETCH
) == 0);
4685 blk
= *((dmu_buf_impl_t
*)db
)->db_blkptr
;
4686 dmu_buf_rele(db
, FTAG
);
4689 * Damage the block. Dedup-ditto will save us when we read it later.
4691 psize
= BP_GET_PSIZE(&blk
);
4692 buf
= zio_buf_alloc(psize
);
4693 ztest_pattern_set(buf
, psize
, ~pattern
);
4695 (void) zio_wait(zio_rewrite(NULL
, spa
, 0, &blk
,
4696 buf
, psize
, NULL
, NULL
, ZIO_PRIORITY_SYNC_WRITE
,
4697 ZIO_FLAG_CANFAIL
| ZIO_FLAG_INDUCE_DAMAGE
, NULL
));
4699 zio_buf_free(buf
, psize
);
4701 (void) rw_unlock(&zs
->zs_name_lock
);
4709 ztest_scrub(ztest_ds_t
*zd
, uint64_t id
)
4711 ztest_shared_t
*zs
= ztest_shared
;
4712 spa_t
*spa
= zs
->zs_spa
;
4714 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
4715 (void) poll(NULL
, 0, 100); /* wait a moment, then force a restart */
4716 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
4720 * Rename the pool to a different name and then rename it back.
4724 ztest_spa_rename(ztest_ds_t
*zd
, uint64_t id
)
4726 ztest_shared_t
*zs
= ztest_shared
;
4727 char *oldname
, *newname
;
4730 (void) rw_wrlock(&zs
->zs_name_lock
);
4732 oldname
= zs
->zs_pool
;
4733 newname
= umem_alloc(strlen(oldname
) + 5, UMEM_NOFAIL
);
4734 (void) strcpy(newname
, oldname
);
4735 (void) strcat(newname
, "_tmp");
4740 VERIFY3U(0, ==, spa_rename(oldname
, newname
));
4743 * Try to open it under the old name, which shouldn't exist
4745 VERIFY3U(ENOENT
, ==, spa_open(oldname
, &spa
, FTAG
));
4748 * Open it under the new name and make sure it's still the same spa_t.
4750 VERIFY3U(0, ==, spa_open(newname
, &spa
, FTAG
));
4752 ASSERT(spa
== zs
->zs_spa
);
4753 spa_close(spa
, FTAG
);
4756 * Rename it back to the original
4758 VERIFY3U(0, ==, spa_rename(newname
, oldname
));
4761 * Make sure it can still be opened
4763 VERIFY3U(0, ==, spa_open(oldname
, &spa
, FTAG
));
4765 ASSERT(spa
== zs
->zs_spa
);
4766 spa_close(spa
, FTAG
);
4768 umem_free(newname
, strlen(newname
) + 1);
4770 (void) rw_unlock(&zs
->zs_name_lock
);
4774 * Verify pool integrity by running zdb.
4777 ztest_run_zdb(char *pool
)
4780 char zdb
[MAXPATHLEN
+ MAXNAMELEN
+ 20];
4788 (void) realpath(getexecname(), zdb
);
4790 /* zdb lives in /usr/sbin, while ztest lives in /usr/bin */
4791 bin
= strstr(zdb
, "/usr/bin/");
4792 ztest
= strstr(bin
, "/ztest");
4794 isalen
= ztest
- isa
;
4798 "/usr/sbin%.*s/zdb -bcc%s%s -U %s %s",
4801 zopt_verbose
>= 3 ? "s" : "",
4802 zopt_verbose
>= 4 ? "v" : "",
4807 if (zopt_verbose
>= 5)
4808 (void) printf("Executing %s\n", strstr(zdb
, "zdb "));
4810 fp
= popen(zdb
, "r");
4812 while (fgets(zbuf
, sizeof (zbuf
), fp
) != NULL
)
4813 if (zopt_verbose
>= 3)
4814 (void) printf("%s", zbuf
);
4816 status
= pclose(fp
);
4821 ztest_dump_core
= 0;
4822 if (WIFEXITED(status
))
4823 fatal(0, "'%s' exit code %d", zdb
, WEXITSTATUS(status
));
4825 fatal(0, "'%s' died with signal %d", zdb
, WTERMSIG(status
));
4829 ztest_walk_pool_directory(char *header
)
4833 if (zopt_verbose
>= 6)
4834 (void) printf("%s\n", header
);
4836 mutex_enter(&spa_namespace_lock
);
4837 while ((spa
= spa_next(spa
)) != NULL
)
4838 if (zopt_verbose
>= 6)
4839 (void) printf("\t%s\n", spa_name(spa
));
4840 mutex_exit(&spa_namespace_lock
);
4844 ztest_spa_import_export(char *oldname
, char *newname
)
4846 nvlist_t
*config
, *newconfig
;
4850 if (zopt_verbose
>= 4) {
4851 (void) printf("import/export: old = %s, new = %s\n",
4856 * Clean up from previous runs.
4858 (void) spa_destroy(newname
);
4861 * Get the pool's configuration and guid.
4863 VERIFY3U(0, ==, spa_open(oldname
, &spa
, FTAG
));
4866 * Kick off a scrub to tickle scrub/export races.
4868 if (ztest_random(2) == 0)
4869 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
4871 pool_guid
= spa_guid(spa
);
4872 spa_close(spa
, FTAG
);
4874 ztest_walk_pool_directory("pools before export");
4879 VERIFY3U(0, ==, spa_export(oldname
, &config
, B_FALSE
, B_FALSE
));
4881 ztest_walk_pool_directory("pools after export");
4886 newconfig
= spa_tryimport(config
);
4887 ASSERT(newconfig
!= NULL
);
4888 nvlist_free(newconfig
);
4891 * Import it under the new name.
4893 VERIFY3U(0, ==, spa_import(newname
, config
, NULL
, 0));
4895 ztest_walk_pool_directory("pools after import");
4898 * Try to import it again -- should fail with EEXIST.
4900 VERIFY3U(EEXIST
, ==, spa_import(newname
, config
, NULL
, 0));
4903 * Try to import it under a different name -- should fail with EEXIST.
4905 VERIFY3U(EEXIST
, ==, spa_import(oldname
, config
, NULL
, 0));
4908 * Verify that the pool is no longer visible under the old name.
4910 VERIFY3U(ENOENT
, ==, spa_open(oldname
, &spa
, FTAG
));
4913 * Verify that we can open and close the pool using the new name.
4915 VERIFY3U(0, ==, spa_open(newname
, &spa
, FTAG
));
4916 ASSERT(pool_guid
== spa_guid(spa
));
4917 spa_close(spa
, FTAG
);
4919 nvlist_free(config
);
4923 ztest_resume(spa_t
*spa
)
4925 if (spa_suspended(spa
) && zopt_verbose
>= 6)
4926 (void) printf("resuming from suspended state\n");
4927 spa_vdev_state_enter(spa
, SCL_NONE
);
4928 vdev_clear(spa
, NULL
);
4929 (void) spa_vdev_state_exit(spa
, NULL
, 0);
4930 (void) zio_resume(spa
);
4934 ztest_resume_thread(void *arg
)
4938 while (!ztest_exiting
) {
4939 if (spa_suspended(spa
))
4941 (void) poll(NULL
, 0, 100);
4947 ztest_deadman_thread(void *arg
)
4949 ztest_shared_t
*zs
= arg
;
4953 delta
= (zs
->zs_thread_stop
- zs
->zs_thread_start
) / NANOSEC
+ grace
;
4955 (void) poll(NULL
, 0, (int)(1000 * delta
));
4957 fatal(0, "failed to complete within %d seconds of deadline", grace
);
4963 ztest_execute(ztest_info_t
*zi
, uint64_t id
)
4965 ztest_shared_t
*zs
= ztest_shared
;
4966 ztest_ds_t
*zd
= &zs
->zs_zd
[id
% zopt_datasets
];
4967 hrtime_t functime
= gethrtime();
4970 for (i
= 0; i
< zi
->zi_iters
; i
++)
4971 zi
->zi_func(zd
, id
);
4973 functime
= gethrtime() - functime
;
4975 atomic_add_64(&zi
->zi_call_count
, 1);
4976 atomic_add_64(&zi
->zi_call_time
, functime
);
4978 if (zopt_verbose
>= 4) {
4980 (void) dladdr((void *)zi
->zi_func
, &dli
);
4981 (void) printf("%6.2f sec in %s\n",
4982 (double)functime
/ NANOSEC
, dli
.dli_sname
);
4987 ztest_thread(void *arg
)
4989 uint64_t id
= (uintptr_t)arg
;
4990 ztest_shared_t
*zs
= ztest_shared
;
4995 while ((now
= gethrtime()) < zs
->zs_thread_stop
) {
4997 * See if it's time to force a crash.
4999 if (now
> zs
->zs_thread_kill
)
5003 * If we're getting ENOSPC with some regularity, stop.
5005 if (zs
->zs_enospc_count
> 10)
5009 * Pick a random function to execute.
5011 zi
= &zs
->zs_info
[ztest_random(ZTEST_FUNCS
)];
5012 call_next
= zi
->zi_call_next
;
5014 if (now
>= call_next
&&
5015 atomic_cas_64(&zi
->zi_call_next
, call_next
, call_next
+
5016 ztest_random(2 * zi
->zi_interval
[0] + 1)) == call_next
)
5017 ztest_execute(zi
, id
);
5024 ztest_dataset_name(char *dsname
, char *pool
, int d
)
5026 (void) snprintf(dsname
, MAXNAMELEN
, "%s/ds_%d", pool
, d
);
5030 ztest_dataset_destroy(ztest_shared_t
*zs
, int d
)
5032 char name
[MAXNAMELEN
];
5035 ztest_dataset_name(name
, zs
->zs_pool
, d
);
5037 if (zopt_verbose
>= 3)
5038 (void) printf("Destroying %s to free up space\n", name
);
5041 * Cleanup any non-standard clones and snapshots. In general,
5042 * ztest thread t operates on dataset (t % zopt_datasets),
5043 * so there may be more than one thing to clean up.
5045 for (t
= d
; t
< zopt_threads
; t
+= zopt_datasets
)
5046 ztest_dsl_dataset_cleanup(name
, t
);
5048 (void) dmu_objset_find(name
, ztest_objset_destroy_cb
, NULL
,
5049 DS_FIND_SNAPSHOTS
| DS_FIND_CHILDREN
);
5053 ztest_dataset_dirobj_verify(ztest_ds_t
*zd
)
5055 uint64_t usedobjs
, dirobjs
, scratch
;
5058 * ZTEST_DIROBJ is the object directory for the entire dataset.
5059 * Therefore, the number of objects in use should equal the
5060 * number of ZTEST_DIROBJ entries, +1 for ZTEST_DIROBJ itself.
5061 * If not, we have an object leak.
5063 * Note that we can only check this in ztest_dataset_open(),
5064 * when the open-context and syncing-context values agree.
5065 * That's because zap_count() returns the open-context value,
5066 * while dmu_objset_space() returns the rootbp fill count.
5068 VERIFY3U(0, ==, zap_count(zd
->zd_os
, ZTEST_DIROBJ
, &dirobjs
));
5069 dmu_objset_space(zd
->zd_os
, &scratch
, &scratch
, &usedobjs
, &scratch
);
5070 ASSERT3U(dirobjs
+ 1, ==, usedobjs
);
5074 ztest_dataset_open(ztest_shared_t
*zs
, int d
)
5076 ztest_ds_t
*zd
= &zs
->zs_zd
[d
];
5077 uint64_t committed_seq
= zd
->zd_seq
;
5080 char name
[MAXNAMELEN
];
5083 ztest_dataset_name(name
, zs
->zs_pool
, d
);
5085 (void) rw_rdlock(&zs
->zs_name_lock
);
5087 error
= ztest_dataset_create(name
);
5088 if (error
== ENOSPC
) {
5089 (void) rw_unlock(&zs
->zs_name_lock
);
5090 ztest_record_enospc(FTAG
);
5093 ASSERT(error
== 0 || error
== EEXIST
);
5095 VERIFY3U(dmu_objset_hold(name
, zd
, &os
), ==, 0);
5096 (void) rw_unlock(&zs
->zs_name_lock
);
5098 ztest_zd_init(zd
, os
);
5100 zilog
= zd
->zd_zilog
;
5102 if (zilog
->zl_header
->zh_claim_lr_seq
!= 0 &&
5103 zilog
->zl_header
->zh_claim_lr_seq
< committed_seq
)
5104 fatal(0, "missing log records: claimed %llu < committed %llu",
5105 zilog
->zl_header
->zh_claim_lr_seq
, committed_seq
);
5107 ztest_dataset_dirobj_verify(zd
);
5109 zil_replay(os
, zd
, ztest_replay_vector
);
5111 ztest_dataset_dirobj_verify(zd
);
5113 if (zopt_verbose
>= 6)
5114 (void) printf("%s replay %llu blocks, %llu records, seq %llu\n",
5116 (u_longlong_t
)zilog
->zl_parse_blk_count
,
5117 (u_longlong_t
)zilog
->zl_parse_lr_count
,
5118 (u_longlong_t
)zilog
->zl_replaying_seq
);
5120 zilog
= zil_open(os
, ztest_get_data
);
5122 if (zilog
->zl_replaying_seq
!= 0 &&
5123 zilog
->zl_replaying_seq
< committed_seq
)
5124 fatal(0, "missing log records: replayed %llu < committed %llu",
5125 zilog
->zl_replaying_seq
, committed_seq
);
5131 ztest_dataset_close(ztest_shared_t
*zs
, int d
)
5133 ztest_ds_t
*zd
= &zs
->zs_zd
[d
];
5135 zil_close(zd
->zd_zilog
);
5136 dmu_objset_rele(zd
->zd_os
, zd
);
5142 * Kick off threads to run tests on all datasets in parallel.
5145 ztest_run(ztest_shared_t
*zs
)
5149 thread_t resume_tid
;
5153 ztest_exiting
= B_FALSE
;
5156 * Initialize parent/child shared state.
5158 VERIFY(_mutex_init(&zs
->zs_vdev_lock
, USYNC_THREAD
, NULL
) == 0);
5159 VERIFY(rwlock_init(&zs
->zs_name_lock
, USYNC_THREAD
, NULL
) == 0);
5161 zs
->zs_thread_start
= gethrtime();
5162 zs
->zs_thread_stop
= zs
->zs_thread_start
+ zopt_passtime
* NANOSEC
;
5163 zs
->zs_thread_stop
= MIN(zs
->zs_thread_stop
, zs
->zs_proc_stop
);
5164 zs
->zs_thread_kill
= zs
->zs_thread_stop
;
5165 if (ztest_random(100) < zopt_killrate
)
5166 zs
->zs_thread_kill
-= ztest_random(zopt_passtime
* NANOSEC
);
5168 (void) _mutex_init(&zcl
.zcl_callbacks_lock
, USYNC_THREAD
, NULL
);
5170 list_create(&zcl
.zcl_callbacks
, sizeof (ztest_cb_data_t
),
5171 offsetof(ztest_cb_data_t
, zcd_node
));
5176 kernel_init(FREAD
| FWRITE
);
5177 VERIFY(spa_open(zs
->zs_pool
, &spa
, FTAG
) == 0);
5180 spa
->spa_dedup_ditto
= 2 * ZIO_DEDUPDITTO_MIN
;
5183 * We don't expect the pool to suspend unless maxfaults == 0,
5184 * in which case ztest_fault_inject() temporarily takes away
5185 * the only valid replica.
5187 if (MAXFAULTS() == 0)
5188 spa
->spa_failmode
= ZIO_FAILURE_MODE_WAIT
;
5190 spa
->spa_failmode
= ZIO_FAILURE_MODE_PANIC
;
5193 * Create a thread to periodically resume suspended I/O.
5195 VERIFY(thr_create(0, 0, ztest_resume_thread
, spa
, THR_BOUND
,
5199 * Create a deadman thread to abort() if we hang.
5201 VERIFY(thr_create(0, 0, ztest_deadman_thread
, zs
, THR_BOUND
,
5205 * Verify that we can safely inquire about about any object,
5206 * whether it's allocated or not. To make it interesting,
5207 * we probe a 5-wide window around each power of two.
5208 * This hits all edge cases, including zero and the max.
5210 for (t
= 0; t
< 64; t
++) {
5211 for (d
= -5; d
<= 5; d
++) {
5212 error
= dmu_object_info(spa
->spa_meta_objset
,
5213 (1ULL << t
) + d
, NULL
);
5214 ASSERT(error
== 0 || error
== ENOENT
||
5220 * If we got any ENOSPC errors on the previous run, destroy something.
5222 if (zs
->zs_enospc_count
!= 0) {
5223 int d
= ztest_random(zopt_datasets
);
5224 ztest_dataset_destroy(zs
, d
);
5226 zs
->zs_enospc_count
= 0;
5228 tid
= umem_zalloc(zopt_threads
* sizeof (thread_t
), UMEM_NOFAIL
);
5230 if (zopt_verbose
>= 4)
5231 (void) printf("starting main threads...\n");
5234 * Kick off all the tests that run in parallel.
5236 for (t
= 0; t
< zopt_threads
; t
++) {
5237 if (t
< zopt_datasets
&& ztest_dataset_open(zs
, t
) != 0)
5239 VERIFY(thr_create(0, 0, ztest_thread
, (void *)(uintptr_t)t
,
5240 THR_BOUND
, &tid
[t
]) == 0);
5244 * Wait for all of the tests to complete. We go in reverse order
5245 * so we don't close datasets while threads are still using them.
5247 for (t
= zopt_threads
- 1; t
>= 0; t
--) {
5248 VERIFY(thr_join(tid
[t
], NULL
, NULL
) == 0);
5249 if (t
< zopt_datasets
)
5250 ztest_dataset_close(zs
, t
);
5253 txg_wait_synced(spa_get_dsl(spa
), 0);
5255 zs
->zs_alloc
= metaslab_class_get_alloc(spa_normal_class(spa
));
5256 zs
->zs_space
= metaslab_class_get_space(spa_normal_class(spa
));
5258 umem_free(tid
, zopt_threads
* sizeof (thread_t
));
5260 /* Kill the resume thread */
5261 ztest_exiting
= B_TRUE
;
5262 VERIFY(thr_join(resume_tid
, NULL
, NULL
) == 0);
5266 * Right before closing the pool, kick off a bunch of async I/O;
5267 * spa_close() should wait for it to complete.
5269 for (uint64_t object
= 1; object
< 50; object
++)
5270 dmu_prefetch(spa
->spa_meta_objset
, object
, 0, 1ULL << 20);
5272 /* Verify that at least one commit cb was called in a timely fashion */
5273 if (zc_cb_counter
>= ZTEST_COMMIT_CB_MIN_REG
)
5274 VERIFY3U(zc_min_txg_delay
, ==, 0);
5276 spa_close(spa
, FTAG
);
5279 * Verify that we can loop over all pools.
5281 mutex_enter(&spa_namespace_lock
);
5282 for (spa
= spa_next(NULL
); spa
!= NULL
; spa
= spa_next(spa
))
5283 if (zopt_verbose
> 3)
5284 (void) printf("spa_next: found %s\n", spa_name(spa
));
5285 mutex_exit(&spa_namespace_lock
);
5288 * Verify that we can export the pool and reimport it under a
5291 if (ztest_random(2) == 0) {
5292 char name
[MAXNAMELEN
];
5293 (void) snprintf(name
, MAXNAMELEN
, "%s_import", zs
->zs_pool
);
5294 ztest_spa_import_export(zs
->zs_pool
, name
);
5295 ztest_spa_import_export(name
, zs
->zs_pool
);
5300 list_destroy(&zcl
.zcl_callbacks
);
5302 (void) _mutex_destroy(&zcl
.zcl_callbacks_lock
);
5304 (void) rwlock_destroy(&zs
->zs_name_lock
);
5305 (void) _mutex_destroy(&zs
->zs_vdev_lock
);
5309 ztest_freeze(ztest_shared_t
*zs
)
5311 ztest_ds_t
*zd
= &zs
->zs_zd
[0];
5315 if (zopt_verbose
>= 3)
5316 (void) printf("testing spa_freeze()...\n");
5318 kernel_init(FREAD
| FWRITE
);
5319 VERIFY3U(0, ==, spa_open(zs
->zs_pool
, &spa
, FTAG
));
5320 VERIFY3U(0, ==, ztest_dataset_open(zs
, 0));
5323 * Force the first log block to be transactionally allocated.
5324 * We have to do this before we freeze the pool -- otherwise
5325 * the log chain won't be anchored.
5327 while (BP_IS_HOLE(&zd
->zd_zilog
->zl_header
->zh_log
)) {
5328 ztest_dmu_object_alloc_free(zd
, 0);
5329 zil_commit(zd
->zd_zilog
, 0);
5332 txg_wait_synced(spa_get_dsl(spa
), 0);
5335 * Freeze the pool. This stops spa_sync() from doing anything,
5336 * so that the only way to record changes from now on is the ZIL.
5341 * Run tests that generate log records but don't alter the pool config
5342 * or depend on DSL sync tasks (snapshots, objset create/destroy, etc).
5343 * We do a txg_wait_synced() after each iteration to force the txg
5344 * to increase well beyond the last synced value in the uberblock.
5345 * The ZIL should be OK with that.
5347 while (ztest_random(10) != 0 && numloops
++ < zopt_maxloops
) {
5348 ztest_dmu_write_parallel(zd
, 0);
5349 ztest_dmu_object_alloc_free(zd
, 0);
5350 txg_wait_synced(spa_get_dsl(spa
), 0);
5354 * Commit all of the changes we just generated.
5356 zil_commit(zd
->zd_zilog
, 0);
5357 txg_wait_synced(spa_get_dsl(spa
), 0);
5360 * Close our dataset and close the pool.
5362 ztest_dataset_close(zs
, 0);
5363 spa_close(spa
, FTAG
);
5367 * Open and close the pool and dataset to induce log replay.
5369 kernel_init(FREAD
| FWRITE
);
5370 VERIFY3U(0, ==, spa_open(zs
->zs_pool
, &spa
, FTAG
));
5371 VERIFY3U(0, ==, ztest_dataset_open(zs
, 0));
5372 ztest_dataset_close(zs
, 0);
5373 spa_close(spa
, FTAG
);
5378 print_time(hrtime_t t
, char *timebuf
)
5380 hrtime_t s
= t
/ NANOSEC
;
5381 hrtime_t m
= s
/ 60;
5382 hrtime_t h
= m
/ 60;
5383 hrtime_t d
= h
/ 24;
5392 (void) sprintf(timebuf
,
5393 "%llud%02lluh%02llum%02llus", d
, h
, m
, s
);
5395 (void) sprintf(timebuf
, "%lluh%02llum%02llus", h
, m
, s
);
5397 (void) sprintf(timebuf
, "%llum%02llus", m
, s
);
5399 (void) sprintf(timebuf
, "%llus", s
);
5403 make_random_props(void)
5407 if (ztest_random(2) == 0)
5410 VERIFY(nvlist_alloc(&props
, NV_UNIQUE_NAME
, 0) == 0);
5411 VERIFY(nvlist_add_uint64(props
, "autoreplace", 1) == 0);
5413 (void) printf("props:\n");
5414 dump_nvlist(props
, 4);
5420 * Create a storage pool with the given name and initial vdev size.
5421 * Then test spa_freeze() functionality.
5424 ztest_init(ztest_shared_t
*zs
)
5427 nvlist_t
*nvroot
, *props
;
5429 VERIFY(_mutex_init(&zs
->zs_vdev_lock
, USYNC_THREAD
, NULL
) == 0);
5430 VERIFY(rwlock_init(&zs
->zs_name_lock
, USYNC_THREAD
, NULL
) == 0);
5432 kernel_init(FREAD
| FWRITE
);
5435 * Create the storage pool.
5437 (void) spa_destroy(zs
->zs_pool
);
5438 ztest_shared
->zs_vdev_next_leaf
= 0;
5440 zs
->zs_mirrors
= zopt_mirrors
;
5441 nvroot
= make_vdev_root(NULL
, NULL
, zopt_vdev_size
, 0,
5442 0, zopt_raidz
, zs
->zs_mirrors
, 1);
5443 props
= make_random_props();
5444 VERIFY3U(0, ==, spa_create(zs
->zs_pool
, nvroot
, props
, NULL
, NULL
));
5445 nvlist_free(nvroot
);
5447 VERIFY3U(0, ==, spa_open(zs
->zs_pool
, &spa
, FTAG
));
5448 metaslab_sz
= 1ULL << spa
->spa_root_vdev
->vdev_child
[0]->vdev_ms_shift
;
5449 spa_close(spa
, FTAG
);
5453 ztest_run_zdb(zs
->zs_pool
);
5457 ztest_run_zdb(zs
->zs_pool
);
5459 (void) rwlock_destroy(&zs
->zs_name_lock
);
5460 (void) _mutex_destroy(&zs
->zs_vdev_lock
);
5464 main(int argc
, char **argv
)
5476 (void) setvbuf(stdout
, NULL
, _IOLBF
, 0);
5478 ztest_random_fd
= open("/dev/urandom", O_RDONLY
);
5480 process_options(argc
, argv
);
5482 /* Override location of zpool.cache */
5483 VERIFY(asprintf((char **)&spa_config_path
, "%s/zpool.cache",
5487 * Blow away any existing copy of zpool.cache
5490 (void) remove(spa_config_path
);
5492 shared_size
= sizeof (*zs
) + zopt_datasets
* sizeof (ztest_ds_t
);
5494 zs
= ztest_shared
= (void *)mmap(0,
5495 P2ROUNDUP(shared_size
, getpagesize()),
5496 PROT_READ
| PROT_WRITE
, MAP_SHARED
| MAP_ANON
, -1, 0);
5498 if (zopt_verbose
>= 1) {
5499 (void) printf("%llu vdevs, %d datasets, %d threads,"
5500 " %llu seconds...\n",
5501 (u_longlong_t
)zopt_vdevs
, zopt_datasets
, zopt_threads
,
5502 (u_longlong_t
)zopt_time
);
5506 * Create and initialize our storage pool.
5508 for (i
= 1; i
<= zopt_init
; i
++) {
5509 bzero(zs
, sizeof (ztest_shared_t
));
5510 if (zopt_verbose
>= 3 && zopt_init
!= 1)
5511 (void) printf("ztest_init(), pass %d\n", i
);
5512 zs
->zs_pool
= zopt_pool
;
5516 zs
->zs_pool
= zopt_pool
;
5517 zs
->zs_proc_start
= gethrtime();
5518 zs
->zs_proc_stop
= zs
->zs_proc_start
+ zopt_time
* NANOSEC
;
5520 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
5521 zi
= &zs
->zs_info
[f
];
5522 *zi
= ztest_info
[f
];
5523 if (zs
->zs_proc_start
+ zi
->zi_interval
[0] > zs
->zs_proc_stop
)
5524 zi
->zi_call_next
= UINT64_MAX
;
5526 zi
->zi_call_next
= zs
->zs_proc_start
+
5527 ztest_random(2 * zi
->zi_interval
[0] + 1);
5531 * Run the tests in a loop. These tests include fault injection
5532 * to verify that self-healing data works, and forced crashes
5533 * to verify that we never lose on-disk consistency.
5535 while (gethrtime() < zs
->zs_proc_stop
) {
5540 * Initialize the workload counters for each function.
5542 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
5543 zi
= &zs
->zs_info
[f
];
5544 zi
->zi_call_count
= 0;
5545 zi
->zi_call_time
= 0;
5548 /* Set the allocation switch size */
5549 metaslab_df_alloc_threshold
= ztest_random(metaslab_sz
/ 4) + 1;
5554 fatal(1, "fork failed");
5556 if (pid
== 0) { /* child */
5557 struct rlimit rl
= { 1024, 1024 };
5558 (void) setrlimit(RLIMIT_NOFILE
, &rl
);
5559 (void) enable_extended_FILE_stdio(-1, -1);
5564 while (waitpid(pid
, &status
, 0) != pid
)
5567 if (WIFEXITED(status
)) {
5568 if (WEXITSTATUS(status
) != 0) {
5569 (void) fprintf(stderr
,
5570 "child exited with code %d\n",
5571 WEXITSTATUS(status
));
5574 } else if (WIFSIGNALED(status
)) {
5575 if (WTERMSIG(status
) != SIGKILL
) {
5576 (void) fprintf(stderr
,
5577 "child died with signal %d\n",
5583 (void) fprintf(stderr
, "something strange happened "
5590 if (zopt_verbose
>= 1) {
5591 hrtime_t now
= gethrtime();
5593 now
= MIN(now
, zs
->zs_proc_stop
);
5594 print_time(zs
->zs_proc_stop
- now
, timebuf
);
5595 nicenum(zs
->zs_space
, numbuf
);
5597 (void) printf("Pass %3d, %8s, %3llu ENOSPC, "
5598 "%4.1f%% of %5s used, %3.0f%% done, %8s to go\n",
5600 WIFEXITED(status
) ? "Complete" : "SIGKILL",
5601 (u_longlong_t
)zs
->zs_enospc_count
,
5602 100.0 * zs
->zs_alloc
/ zs
->zs_space
,
5604 100.0 * (now
- zs
->zs_proc_start
) /
5605 (zopt_time
* NANOSEC
), timebuf
);
5608 if (zopt_verbose
>= 2) {
5609 (void) printf("\nWorkload summary:\n\n");
5610 (void) printf("%7s %9s %s\n",
5611 "Calls", "Time", "Function");
5612 (void) printf("%7s %9s %s\n",
5613 "-----", "----", "--------");
5614 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
5617 zi
= &zs
->zs_info
[f
];
5618 print_time(zi
->zi_call_time
, timebuf
);
5619 (void) dladdr((void *)zi
->zi_func
, &dli
);
5620 (void) printf("%7llu %9s %s\n",
5621 (u_longlong_t
)zi
->zi_call_count
, timebuf
,
5624 (void) printf("\n");
5628 * It's possible that we killed a child during a rename test,
5629 * in which case we'll have a 'ztest_tmp' pool lying around
5630 * instead of 'ztest'. Do a blind rename in case this happened.
5633 if (spa_open(zopt_pool
, &spa
, FTAG
) == 0) {
5634 spa_close(spa
, FTAG
);
5636 char tmpname
[MAXNAMELEN
];
5638 kernel_init(FREAD
| FWRITE
);
5639 (void) snprintf(tmpname
, sizeof (tmpname
), "%s_tmp",
5641 (void) spa_rename(tmpname
, zopt_pool
);
5645 ztest_run_zdb(zopt_pool
);
5648 if (zopt_verbose
>= 1) {
5649 (void) printf("%d killed, %d completed, %.0f%% kill rate\n",
5650 kills
, iters
- kills
, (100.0 * kills
) / MAX(1, iters
));