4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 * Copyright (c) 2011, 2014 by Delphix. All rights reserved.
24 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
25 * Copyright (c) 2013 Steven Hartland. All rights reserved.
29 * The objective of this program is to provide a DMU/ZAP/SPA stress test
30 * that runs entirely in userland, is easy to use, and easy to extend.
32 * The overall design of the ztest program is as follows:
34 * (1) For each major functional area (e.g. adding vdevs to a pool,
35 * creating and destroying datasets, reading and writing objects, etc)
36 * we have a simple routine to test that functionality. These
37 * individual routines do not have to do anything "stressful".
39 * (2) We turn these simple functionality tests into a stress test by
40 * running them all in parallel, with as many threads as desired,
41 * and spread across as many datasets, objects, and vdevs as desired.
43 * (3) While all this is happening, we inject faults into the pool to
44 * verify that self-healing data really works.
46 * (4) Every time we open a dataset, we change its checksum and compression
47 * functions. Thus even individual objects vary from block to block
48 * in which checksum they use and whether they're compressed.
50 * (5) To verify that we never lose on-disk consistency after a crash,
51 * we run the entire test in a child of the main process.
52 * At random times, the child self-immolates with a SIGKILL.
53 * This is the software equivalent of pulling the power cord.
54 * The parent then runs the test again, using the existing
55 * storage pool, as many times as desired. If backwards compatibility
56 * testing is enabled ztest will sometimes run the "older" version
57 * of ztest after a SIGKILL.
59 * (6) To verify that we don't have future leaks or temporal incursions,
60 * many of the functional tests record the transaction group number
61 * as part of their data. When reading old data, they verify that
62 * the transaction group number is less than the current, open txg.
63 * If you add a new test, please do this if applicable.
65 * (7) Threads are created with a reduced stack size, for sanity checking.
66 * Therefore, it's important not to allocate huge buffers on the stack.
68 * When run with no arguments, ztest runs for about five minutes and
69 * produces no output if successful. To get a little bit of information,
70 * specify -V. To get more information, specify -VV, and so on.
72 * To turn this into an overnight stress test, use -T to specify run time.
74 * You can ask more more vdevs [-v], datasets [-d], or threads [-t]
75 * to increase the pool capacity, fanout, and overall stress level.
77 * Use the -k option to set the desired frequency of kills.
79 * When ztest invokes itself it passes all relevant information through a
80 * temporary file which is mmap-ed in the child process. This allows shared
81 * memory to survive the exec syscall. The ztest_shared_hdr_t struct is always
82 * stored at offset 0 of this file and contains information on the size and
83 * number of shared structures in the file. The information stored in this file
84 * must remain backwards compatible with older versions of ztest so that
85 * ztest can invoke them during backwards compatibility testing (-B).
88 #include <sys/zfs_context.h>
94 #include <sys/dmu_objset.h>
100 #include <sys/resource.h>
103 #include <sys/zil_impl.h>
104 #include <sys/vdev_impl.h>
105 #include <sys/vdev_file.h>
106 #include <sys/spa_impl.h>
107 #include <sys/metaslab_impl.h>
108 #include <sys/dsl_prop.h>
109 #include <sys/dsl_dataset.h>
110 #include <sys/dsl_destroy.h>
111 #include <sys/dsl_scan.h>
112 #include <sys/zio_checksum.h>
113 #include <sys/refcount.h>
114 #include <sys/zfeature.h>
115 #include <sys/dsl_userhold.h>
117 #include <stdio_ext.h>
125 #include <sys/fs/zfs.h>
126 #include <libnvpair.h>
128 static int ztest_fd_data
= -1;
129 static int ztest_fd_rand
= -1;
131 typedef struct ztest_shared_hdr
{
132 uint64_t zh_hdr_size
;
133 uint64_t zh_opts_size
;
135 uint64_t zh_stats_size
;
136 uint64_t zh_stats_count
;
138 uint64_t zh_ds_count
;
139 } ztest_shared_hdr_t
;
141 static ztest_shared_hdr_t
*ztest_shared_hdr
;
143 typedef struct ztest_shared_opts
{
144 char zo_pool
[MAXNAMELEN
];
145 char zo_dir
[MAXNAMELEN
];
146 char zo_alt_ztest
[MAXNAMELEN
];
147 char zo_alt_libpath
[MAXNAMELEN
];
149 uint64_t zo_vdevtime
;
157 uint64_t zo_passtime
;
158 uint64_t zo_killrate
;
162 uint64_t zo_maxloops
;
163 uint64_t zo_metaslab_gang_bang
;
164 } ztest_shared_opts_t
;
166 static const ztest_shared_opts_t ztest_opts_defaults
= {
167 .zo_pool
= { 'z', 't', 'e', 's', 't', '\0' },
168 .zo_dir
= { '/', 't', 'm', 'p', '\0' },
169 .zo_alt_ztest
= { '\0' },
170 .zo_alt_libpath
= { '\0' },
172 .zo_ashift
= SPA_MINBLOCKSHIFT
,
175 .zo_raidz_parity
= 1,
176 .zo_vdev_size
= SPA_MINDEVSIZE
,
179 .zo_passtime
= 60, /* 60 seconds */
180 .zo_killrate
= 70, /* 70% kill rate */
183 .zo_time
= 300, /* 5 minutes */
184 .zo_maxloops
= 50, /* max loops during spa_freeze() */
185 .zo_metaslab_gang_bang
= 32 << 10
188 extern uint64_t metaslab_gang_bang
;
189 extern uint64_t metaslab_df_alloc_threshold
;
190 extern int metaslab_preload_limit
;
192 static ztest_shared_opts_t
*ztest_shared_opts
;
193 static ztest_shared_opts_t ztest_opts
;
195 typedef struct ztest_shared_ds
{
199 static ztest_shared_ds_t
*ztest_shared_ds
;
200 #define ZTEST_GET_SHARED_DS(d) (&ztest_shared_ds[d])
202 #define BT_MAGIC 0x123456789abcdefULL
203 #define MAXFAULTS() \
204 (MAX(zs->zs_mirrors, 1) * (ztest_opts.zo_raidz_parity + 1) - 1)
208 ZTEST_IO_WRITE_PATTERN
,
209 ZTEST_IO_WRITE_ZEROES
,
216 typedef struct ztest_block_tag
{
226 typedef struct bufwad
{
233 * XXX -- fix zfs range locks to be generic so we can use them here.
255 #define ZTEST_RANGE_LOCKS 64
256 #define ZTEST_OBJECT_LOCKS 64
259 * Object descriptor. Used as a template for object lookup/create/remove.
261 typedef struct ztest_od
{
264 dmu_object_type_t od_type
;
265 dmu_object_type_t od_crtype
;
266 uint64_t od_blocksize
;
267 uint64_t od_crblocksize
;
270 char od_name
[MAXNAMELEN
];
276 typedef struct ztest_ds
{
277 ztest_shared_ds_t
*zd_shared
;
279 rwlock_t zd_zilog_lock
;
281 ztest_od_t
*zd_od
; /* debugging aid */
282 char zd_name
[MAXNAMELEN
];
283 kmutex_t zd_dirobj_lock
;
284 rll_t zd_object_lock
[ZTEST_OBJECT_LOCKS
];
285 rll_t zd_range_lock
[ZTEST_RANGE_LOCKS
];
289 * Per-iteration state.
291 typedef void ztest_func_t(ztest_ds_t
*zd
, uint64_t id
);
293 typedef struct ztest_info
{
294 ztest_func_t
*zi_func
; /* test function */
295 uint64_t zi_iters
; /* iterations per execution */
296 uint64_t *zi_interval
; /* execute every <interval> seconds */
299 typedef struct ztest_shared_callstate
{
300 uint64_t zc_count
; /* per-pass count */
301 uint64_t zc_time
; /* per-pass time */
302 uint64_t zc_next
; /* next time to call this function */
303 } ztest_shared_callstate_t
;
305 static ztest_shared_callstate_t
*ztest_shared_callstate
;
306 #define ZTEST_GET_SHARED_CALLSTATE(c) (&ztest_shared_callstate[c])
309 * Note: these aren't static because we want dladdr() to work.
311 ztest_func_t ztest_dmu_read_write
;
312 ztest_func_t ztest_dmu_write_parallel
;
313 ztest_func_t ztest_dmu_object_alloc_free
;
314 ztest_func_t ztest_dmu_commit_callbacks
;
315 ztest_func_t ztest_zap
;
316 ztest_func_t ztest_zap_parallel
;
317 ztest_func_t ztest_zil_commit
;
318 ztest_func_t ztest_zil_remount
;
319 ztest_func_t ztest_dmu_read_write_zcopy
;
320 ztest_func_t ztest_dmu_objset_create_destroy
;
321 ztest_func_t ztest_dmu_prealloc
;
322 ztest_func_t ztest_fzap
;
323 ztest_func_t ztest_dmu_snapshot_create_destroy
;
324 ztest_func_t ztest_dsl_prop_get_set
;
325 ztest_func_t ztest_spa_prop_get_set
;
326 ztest_func_t ztest_spa_create_destroy
;
327 ztest_func_t ztest_fault_inject
;
328 ztest_func_t ztest_ddt_repair
;
329 ztest_func_t ztest_dmu_snapshot_hold
;
330 ztest_func_t ztest_spa_rename
;
331 ztest_func_t ztest_scrub
;
332 ztest_func_t ztest_dsl_dataset_promote_busy
;
333 ztest_func_t ztest_vdev_attach_detach
;
334 ztest_func_t ztest_vdev_LUN_growth
;
335 ztest_func_t ztest_vdev_add_remove
;
336 ztest_func_t ztest_vdev_aux_add_remove
;
337 ztest_func_t ztest_split_pool
;
338 ztest_func_t ztest_reguid
;
339 ztest_func_t ztest_spa_upgrade
;
341 uint64_t zopt_always
= 0ULL * NANOSEC
; /* all the time */
342 uint64_t zopt_incessant
= 1ULL * NANOSEC
/ 10; /* every 1/10 second */
343 uint64_t zopt_often
= 1ULL * NANOSEC
; /* every second */
344 uint64_t zopt_sometimes
= 10ULL * NANOSEC
; /* every 10 seconds */
345 uint64_t zopt_rarely
= 60ULL * NANOSEC
; /* every 60 seconds */
347 ztest_info_t ztest_info
[] = {
348 { ztest_dmu_read_write
, 1, &zopt_always
},
349 { ztest_dmu_write_parallel
, 10, &zopt_always
},
350 { ztest_dmu_object_alloc_free
, 1, &zopt_always
},
351 { ztest_dmu_commit_callbacks
, 1, &zopt_always
},
352 { ztest_zap
, 30, &zopt_always
},
353 { ztest_zap_parallel
, 100, &zopt_always
},
354 { ztest_split_pool
, 1, &zopt_always
},
355 { ztest_zil_commit
, 1, &zopt_incessant
},
356 { ztest_zil_remount
, 1, &zopt_sometimes
},
357 { ztest_dmu_read_write_zcopy
, 1, &zopt_often
},
358 { ztest_dmu_objset_create_destroy
, 1, &zopt_often
},
359 { ztest_dsl_prop_get_set
, 1, &zopt_often
},
360 { ztest_spa_prop_get_set
, 1, &zopt_sometimes
},
362 { ztest_dmu_prealloc
, 1, &zopt_sometimes
},
364 { ztest_fzap
, 1, &zopt_sometimes
},
365 { ztest_dmu_snapshot_create_destroy
, 1, &zopt_sometimes
},
366 { ztest_spa_create_destroy
, 1, &zopt_sometimes
},
367 { ztest_fault_inject
, 1, &zopt_sometimes
},
368 { ztest_ddt_repair
, 1, &zopt_sometimes
},
369 { ztest_dmu_snapshot_hold
, 1, &zopt_sometimes
},
370 { ztest_reguid
, 1, &zopt_rarely
},
371 { ztest_spa_rename
, 1, &zopt_rarely
},
372 { ztest_scrub
, 1, &zopt_rarely
},
373 { ztest_spa_upgrade
, 1, &zopt_rarely
},
374 { ztest_dsl_dataset_promote_busy
, 1, &zopt_rarely
},
375 { ztest_vdev_attach_detach
, 1, &zopt_sometimes
},
376 { ztest_vdev_LUN_growth
, 1, &zopt_rarely
},
377 { ztest_vdev_add_remove
, 1,
378 &ztest_opts
.zo_vdevtime
},
379 { ztest_vdev_aux_add_remove
, 1,
380 &ztest_opts
.zo_vdevtime
},
383 #define ZTEST_FUNCS (sizeof (ztest_info) / sizeof (ztest_info_t))
386 * The following struct is used to hold a list of uncalled commit callbacks.
387 * The callbacks are ordered by txg number.
389 typedef struct ztest_cb_list
{
390 kmutex_t zcl_callbacks_lock
;
391 list_t zcl_callbacks
;
395 * Stuff we need to share writably between parent and child.
397 typedef struct ztest_shared
{
398 boolean_t zs_do_init
;
399 hrtime_t zs_proc_start
;
400 hrtime_t zs_proc_stop
;
401 hrtime_t zs_thread_start
;
402 hrtime_t zs_thread_stop
;
403 hrtime_t zs_thread_kill
;
404 uint64_t zs_enospc_count
;
405 uint64_t zs_vdev_next_leaf
;
406 uint64_t zs_vdev_aux
;
411 uint64_t zs_metaslab_sz
;
412 uint64_t zs_metaslab_df_alloc_threshold
;
416 #define ID_PARALLEL -1ULL
418 static char ztest_dev_template
[] = "%s/%s.%llua";
419 static char ztest_aux_template
[] = "%s/%s.%s.%llu";
420 ztest_shared_t
*ztest_shared
;
422 static spa_t
*ztest_spa
= NULL
;
423 static ztest_ds_t
*ztest_ds
;
425 static kmutex_t ztest_vdev_lock
;
428 * The ztest_name_lock protects the pool and dataset namespace used by
429 * the individual tests. To modify the namespace, consumers must grab
430 * this lock as writer. Grabbing the lock as reader will ensure that the
431 * namespace does not change while the lock is held.
433 static rwlock_t ztest_name_lock
;
435 static boolean_t ztest_dump_core
= B_TRUE
;
436 static boolean_t ztest_exiting
;
438 /* Global commit callback list */
439 static ztest_cb_list_t zcl
;
440 /* Commit cb delay */
441 static uint64_t zc_min_txg_delay
= UINT64_MAX
;
442 static int zc_cb_counter
= 0;
445 * Minimum number of commit callbacks that need to be registered for us to check
446 * whether the minimum txg delay is acceptable.
448 #define ZTEST_COMMIT_CB_MIN_REG 100
451 * If a number of txgs equal to this threshold have been created after a commit
452 * callback has been registered but not called, then we assume there is an
453 * implementation bug.
455 #define ZTEST_COMMIT_CB_THRESH (TXG_CONCURRENT_STATES + 1000)
457 extern uint64_t metaslab_gang_bang
;
458 extern uint64_t metaslab_df_alloc_threshold
;
461 ZTEST_META_DNODE
= 0,
466 static void usage(boolean_t
) __NORETURN
;
469 * These libumem hooks provide a reasonable set of defaults for the allocator's
470 * debugging facilities.
473 _umem_debug_init(void)
475 return ("default,verbose"); /* $UMEM_DEBUG setting */
479 _umem_logging_init(void)
481 return ("fail,contents"); /* $UMEM_LOGGING setting */
484 #define FATAL_MSG_SZ 1024
489 fatal(int do_perror
, char *message
, ...)
492 int save_errno
= errno
;
495 (void) fflush(stdout
);
496 buf
= umem_alloc(FATAL_MSG_SZ
, UMEM_NOFAIL
);
498 va_start(args
, message
);
499 (void) sprintf(buf
, "ztest: ");
501 (void) vsprintf(buf
+ strlen(buf
), message
, args
);
504 (void) snprintf(buf
+ strlen(buf
), FATAL_MSG_SZ
- strlen(buf
),
505 ": %s", strerror(save_errno
));
507 (void) fprintf(stderr
, "%s\n", buf
);
508 fatal_msg
= buf
; /* to ease debugging */
515 str2shift(const char *buf
)
517 const char *ends
= "BKMGTPEZ";
522 for (i
= 0; i
< strlen(ends
); i
++) {
523 if (toupper(buf
[0]) == ends
[i
])
526 if (i
== strlen(ends
)) {
527 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n",
531 if (buf
[1] == '\0' || (toupper(buf
[1]) == 'B' && buf
[2] == '\0')) {
534 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n", buf
);
540 nicenumtoull(const char *buf
)
545 val
= strtoull(buf
, &end
, 0);
547 (void) fprintf(stderr
, "ztest: bad numeric value: %s\n", buf
);
549 } else if (end
[0] == '.') {
550 double fval
= strtod(buf
, &end
);
551 fval
*= pow(2, str2shift(end
));
552 if (fval
> UINT64_MAX
) {
553 (void) fprintf(stderr
, "ztest: value too large: %s\n",
557 val
= (uint64_t)fval
;
559 int shift
= str2shift(end
);
560 if (shift
>= 64 || (val
<< shift
) >> shift
!= val
) {
561 (void) fprintf(stderr
, "ztest: value too large: %s\n",
571 usage(boolean_t requested
)
573 const ztest_shared_opts_t
*zo
= &ztest_opts_defaults
;
575 char nice_vdev_size
[10];
576 char nice_gang_bang
[10];
577 FILE *fp
= requested
? stdout
: stderr
;
579 nicenum(zo
->zo_vdev_size
, nice_vdev_size
);
580 nicenum(zo
->zo_metaslab_gang_bang
, nice_gang_bang
);
582 (void) fprintf(fp
, "Usage: %s\n"
583 "\t[-v vdevs (default: %llu)]\n"
584 "\t[-s size_of_each_vdev (default: %s)]\n"
585 "\t[-a alignment_shift (default: %d)] use 0 for random\n"
586 "\t[-m mirror_copies (default: %d)]\n"
587 "\t[-r raidz_disks (default: %d)]\n"
588 "\t[-R raidz_parity (default: %d)]\n"
589 "\t[-d datasets (default: %d)]\n"
590 "\t[-t threads (default: %d)]\n"
591 "\t[-g gang_block_threshold (default: %s)]\n"
592 "\t[-i init_count (default: %d)] initialize pool i times\n"
593 "\t[-k kill_percentage (default: %llu%%)]\n"
594 "\t[-p pool_name (default: %s)]\n"
595 "\t[-f dir (default: %s)] file directory for vdev files\n"
596 "\t[-V] verbose (use multiple times for ever more blather)\n"
597 "\t[-E] use existing pool instead of creating new one\n"
598 "\t[-T time (default: %llu sec)] total run time\n"
599 "\t[-F freezeloops (default: %llu)] max loops in spa_freeze()\n"
600 "\t[-P passtime (default: %llu sec)] time per pass\n"
601 "\t[-B alt_ztest (default: <none>)] alternate ztest path\n"
602 "\t[-h] (print help)\n"
605 (u_longlong_t
)zo
->zo_vdevs
, /* -v */
606 nice_vdev_size
, /* -s */
607 zo
->zo_ashift
, /* -a */
608 zo
->zo_mirrors
, /* -m */
609 zo
->zo_raidz
, /* -r */
610 zo
->zo_raidz_parity
, /* -R */
611 zo
->zo_datasets
, /* -d */
612 zo
->zo_threads
, /* -t */
613 nice_gang_bang
, /* -g */
614 zo
->zo_init
, /* -i */
615 (u_longlong_t
)zo
->zo_killrate
, /* -k */
616 zo
->zo_pool
, /* -p */
618 (u_longlong_t
)zo
->zo_time
, /* -T */
619 (u_longlong_t
)zo
->zo_maxloops
, /* -F */
620 (u_longlong_t
)zo
->zo_passtime
);
621 exit(requested
? 0 : 1);
625 process_options(int argc
, char **argv
)
628 ztest_shared_opts_t
*zo
= &ztest_opts
;
632 char altdir
[MAXNAMELEN
] = { 0 };
634 bcopy(&ztest_opts_defaults
, zo
, sizeof (*zo
));
636 while ((opt
= getopt(argc
, argv
,
637 "v:s:a:m:r:R:d:t:g:i:k:p:f:VET:P:hF:B:")) != EOF
) {
654 value
= nicenumtoull(optarg
);
658 zo
->zo_vdevs
= value
;
661 zo
->zo_vdev_size
= MAX(SPA_MINDEVSIZE
, value
);
664 zo
->zo_ashift
= value
;
667 zo
->zo_mirrors
= value
;
670 zo
->zo_raidz
= MAX(1, value
);
673 zo
->zo_raidz_parity
= MIN(MAX(value
, 1), 3);
676 zo
->zo_datasets
= MAX(1, value
);
679 zo
->zo_threads
= MAX(1, value
);
682 zo
->zo_metaslab_gang_bang
= MAX(SPA_MINBLOCKSIZE
<< 1,
689 zo
->zo_killrate
= value
;
692 (void) strlcpy(zo
->zo_pool
, optarg
,
693 sizeof (zo
->zo_pool
));
696 path
= realpath(optarg
, NULL
);
698 (void) fprintf(stderr
, "error: %s: %s\n",
699 optarg
, strerror(errno
));
702 (void) strlcpy(zo
->zo_dir
, path
,
703 sizeof (zo
->zo_dir
));
716 zo
->zo_passtime
= MAX(1, value
);
719 zo
->zo_maxloops
= MAX(1, value
);
722 (void) strlcpy(altdir
, optarg
, sizeof (altdir
));
734 zo
->zo_raidz_parity
= MIN(zo
->zo_raidz_parity
, zo
->zo_raidz
- 1);
737 (zo
->zo_vdevs
> 0 ? zo
->zo_time
* NANOSEC
/ zo
->zo_vdevs
:
740 if (strlen(altdir
) > 0) {
748 cmd
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
749 realaltdir
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
751 VERIFY(NULL
!= realpath(getexecname(), cmd
));
752 if (0 != access(altdir
, F_OK
)) {
753 ztest_dump_core
= B_FALSE
;
754 fatal(B_TRUE
, "invalid alternate ztest path: %s",
757 VERIFY(NULL
!= realpath(altdir
, realaltdir
));
760 * 'cmd' should be of the form "<anything>/usr/bin/<isa>/ztest".
761 * We want to extract <isa> to determine if we should use
762 * 32 or 64 bit binaries.
764 bin
= strstr(cmd
, "/usr/bin/");
765 ztest
= strstr(bin
, "/ztest");
767 isalen
= ztest
- isa
;
768 (void) snprintf(zo
->zo_alt_ztest
, sizeof (zo
->zo_alt_ztest
),
769 "%s/usr/bin/%.*s/ztest", realaltdir
, isalen
, isa
);
770 (void) snprintf(zo
->zo_alt_libpath
, sizeof (zo
->zo_alt_libpath
),
771 "%s/usr/lib/%.*s", realaltdir
, isalen
, isa
);
773 if (0 != access(zo
->zo_alt_ztest
, X_OK
)) {
774 ztest_dump_core
= B_FALSE
;
775 fatal(B_TRUE
, "invalid alternate ztest: %s",
777 } else if (0 != access(zo
->zo_alt_libpath
, X_OK
)) {
778 ztest_dump_core
= B_FALSE
;
779 fatal(B_TRUE
, "invalid alternate lib directory %s",
783 umem_free(cmd
, MAXPATHLEN
);
784 umem_free(realaltdir
, MAXPATHLEN
);
789 ztest_kill(ztest_shared_t
*zs
)
791 zs
->zs_alloc
= metaslab_class_get_alloc(spa_normal_class(ztest_spa
));
792 zs
->zs_space
= metaslab_class_get_space(spa_normal_class(ztest_spa
));
795 * Before we kill off ztest, make sure that the config is updated.
796 * See comment above spa_config_sync().
798 mutex_enter(&spa_namespace_lock
);
799 spa_config_sync(ztest_spa
, B_FALSE
, B_FALSE
);
800 mutex_exit(&spa_namespace_lock
);
802 if (ztest_opts
.zo_verbose
>= 3)
803 zfs_dbgmsg_print(FTAG
);
805 (void) kill(getpid(), SIGKILL
);
809 ztest_random(uint64_t range
)
813 ASSERT3S(ztest_fd_rand
, >=, 0);
818 if (read(ztest_fd_rand
, &r
, sizeof (r
)) != sizeof (r
))
819 fatal(1, "short read from /dev/urandom");
826 ztest_record_enospc(const char *s
)
828 ztest_shared
->zs_enospc_count
++;
832 ztest_get_ashift(void)
834 if (ztest_opts
.zo_ashift
== 0)
835 return (SPA_MINBLOCKSHIFT
+ ztest_random(3));
836 return (ztest_opts
.zo_ashift
);
840 make_vdev_file(char *path
, char *aux
, char *pool
, size_t size
, uint64_t ashift
)
846 pathbuf
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
849 ashift
= ztest_get_ashift();
855 vdev
= ztest_shared
->zs_vdev_aux
;
856 (void) snprintf(path
, MAXPATHLEN
,
857 ztest_aux_template
, ztest_opts
.zo_dir
,
858 pool
== NULL
? ztest_opts
.zo_pool
: pool
,
861 vdev
= ztest_shared
->zs_vdev_next_leaf
++;
862 (void) snprintf(path
, MAXPATHLEN
,
863 ztest_dev_template
, ztest_opts
.zo_dir
,
864 pool
== NULL
? ztest_opts
.zo_pool
: pool
, vdev
);
869 int fd
= open(path
, O_RDWR
| O_CREAT
| O_TRUNC
, 0666);
871 fatal(1, "can't open %s", path
);
872 if (ftruncate(fd
, size
) != 0)
873 fatal(1, "can't ftruncate %s", path
);
877 VERIFY(nvlist_alloc(&file
, NV_UNIQUE_NAME
, 0) == 0);
878 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_FILE
) == 0);
879 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_PATH
, path
) == 0);
880 VERIFY(nvlist_add_uint64(file
, ZPOOL_CONFIG_ASHIFT
, ashift
) == 0);
881 umem_free(pathbuf
, MAXPATHLEN
);
887 make_vdev_raidz(char *path
, char *aux
, char *pool
, size_t size
,
888 uint64_t ashift
, int r
)
890 nvlist_t
*raidz
, **child
;
894 return (make_vdev_file(path
, aux
, pool
, size
, ashift
));
895 child
= umem_alloc(r
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
897 for (c
= 0; c
< r
; c
++)
898 child
[c
] = make_vdev_file(path
, aux
, pool
, size
, ashift
);
900 VERIFY(nvlist_alloc(&raidz
, NV_UNIQUE_NAME
, 0) == 0);
901 VERIFY(nvlist_add_string(raidz
, ZPOOL_CONFIG_TYPE
,
902 VDEV_TYPE_RAIDZ
) == 0);
903 VERIFY(nvlist_add_uint64(raidz
, ZPOOL_CONFIG_NPARITY
,
904 ztest_opts
.zo_raidz_parity
) == 0);
905 VERIFY(nvlist_add_nvlist_array(raidz
, ZPOOL_CONFIG_CHILDREN
,
908 for (c
= 0; c
< r
; c
++)
909 nvlist_free(child
[c
]);
911 umem_free(child
, r
* sizeof (nvlist_t
*));
917 make_vdev_mirror(char *path
, char *aux
, char *pool
, size_t size
,
918 uint64_t ashift
, int r
, int m
)
920 nvlist_t
*mirror
, **child
;
924 return (make_vdev_raidz(path
, aux
, pool
, size
, ashift
, r
));
926 child
= umem_alloc(m
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
928 for (c
= 0; c
< m
; c
++)
929 child
[c
] = make_vdev_raidz(path
, aux
, pool
, size
, ashift
, r
);
931 VERIFY(nvlist_alloc(&mirror
, NV_UNIQUE_NAME
, 0) == 0);
932 VERIFY(nvlist_add_string(mirror
, ZPOOL_CONFIG_TYPE
,
933 VDEV_TYPE_MIRROR
) == 0);
934 VERIFY(nvlist_add_nvlist_array(mirror
, ZPOOL_CONFIG_CHILDREN
,
937 for (c
= 0; c
< m
; c
++)
938 nvlist_free(child
[c
]);
940 umem_free(child
, m
* sizeof (nvlist_t
*));
946 make_vdev_root(char *path
, char *aux
, char *pool
, size_t size
, uint64_t ashift
,
947 int log
, int r
, int m
, int t
)
949 nvlist_t
*root
, **child
;
954 child
= umem_alloc(t
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
956 for (c
= 0; c
< t
; c
++) {
957 child
[c
] = make_vdev_mirror(path
, aux
, pool
, size
, ashift
,
959 VERIFY(nvlist_add_uint64(child
[c
], ZPOOL_CONFIG_IS_LOG
,
963 VERIFY(nvlist_alloc(&root
, NV_UNIQUE_NAME
, 0) == 0);
964 VERIFY(nvlist_add_string(root
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_ROOT
) == 0);
965 VERIFY(nvlist_add_nvlist_array(root
, aux
? aux
: ZPOOL_CONFIG_CHILDREN
,
968 for (c
= 0; c
< t
; c
++)
969 nvlist_free(child
[c
]);
971 umem_free(child
, t
* sizeof (nvlist_t
*));
977 * Find a random spa version. Returns back a random spa version in the
978 * range [initial_version, SPA_VERSION_FEATURES].
981 ztest_random_spa_version(uint64_t initial_version
)
983 uint64_t version
= initial_version
;
985 if (version
<= SPA_VERSION_BEFORE_FEATURES
) {
987 ztest_random(SPA_VERSION_BEFORE_FEATURES
- version
+ 1);
990 if (version
> SPA_VERSION_BEFORE_FEATURES
)
991 version
= SPA_VERSION_FEATURES
;
993 ASSERT(SPA_VERSION_IS_SUPPORTED(version
));
998 ztest_random_blocksize(void)
1000 return (1 << (SPA_MINBLOCKSHIFT
+
1001 ztest_random(SPA_MAXBLOCKSHIFT
- SPA_MINBLOCKSHIFT
+ 1)));
1005 ztest_random_ibshift(void)
1007 return (DN_MIN_INDBLKSHIFT
+
1008 ztest_random(DN_MAX_INDBLKSHIFT
- DN_MIN_INDBLKSHIFT
+ 1));
1012 ztest_random_vdev_top(spa_t
*spa
, boolean_t log_ok
)
1015 vdev_t
*rvd
= spa
->spa_root_vdev
;
1018 ASSERT(spa_config_held(spa
, SCL_ALL
, RW_READER
) != 0);
1021 top
= ztest_random(rvd
->vdev_children
);
1022 tvd
= rvd
->vdev_child
[top
];
1023 } while (tvd
->vdev_ishole
|| (tvd
->vdev_islog
&& !log_ok
) ||
1024 tvd
->vdev_mg
== NULL
|| tvd
->vdev_mg
->mg_class
== NULL
);
1030 ztest_random_dsl_prop(zfs_prop_t prop
)
1035 value
= zfs_prop_random_value(prop
, ztest_random(-1ULL));
1036 } while (prop
== ZFS_PROP_CHECKSUM
&& value
== ZIO_CHECKSUM_OFF
);
1042 ztest_dsl_prop_set_uint64(char *osname
, zfs_prop_t prop
, uint64_t value
,
1045 const char *propname
= zfs_prop_to_name(prop
);
1046 const char *valname
;
1051 error
= dsl_prop_set_int(osname
, propname
,
1052 (inherit
? ZPROP_SRC_NONE
: ZPROP_SRC_LOCAL
), value
);
1054 if (error
== ENOSPC
) {
1055 ztest_record_enospc(FTAG
);
1060 setpoint
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
1061 VERIFY0(dsl_prop_get_integer(osname
, propname
, &curval
, setpoint
));
1063 if (ztest_opts
.zo_verbose
>= 6) {
1064 VERIFY(zfs_prop_index_to_string(prop
, curval
, &valname
) == 0);
1065 (void) printf("%s %s = %s at '%s'\n",
1066 osname
, propname
, valname
, setpoint
);
1068 umem_free(setpoint
, MAXPATHLEN
);
1074 ztest_spa_prop_set_uint64(zpool_prop_t prop
, uint64_t value
)
1076 spa_t
*spa
= ztest_spa
;
1077 nvlist_t
*props
= NULL
;
1080 VERIFY(nvlist_alloc(&props
, NV_UNIQUE_NAME
, 0) == 0);
1081 VERIFY(nvlist_add_uint64(props
, zpool_prop_to_name(prop
), value
) == 0);
1083 error
= spa_prop_set(spa
, props
);
1087 if (error
== ENOSPC
) {
1088 ztest_record_enospc(FTAG
);
1097 ztest_rll_init(rll_t
*rll
)
1099 rll
->rll_writer
= NULL
;
1100 rll
->rll_readers
= 0;
1101 mutex_init(&rll
->rll_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
1102 cv_init(&rll
->rll_cv
, NULL
, CV_DEFAULT
, NULL
);
1106 ztest_rll_destroy(rll_t
*rll
)
1108 ASSERT(rll
->rll_writer
== NULL
);
1109 ASSERT(rll
->rll_readers
== 0);
1110 mutex_destroy(&rll
->rll_lock
);
1111 cv_destroy(&rll
->rll_cv
);
1115 ztest_rll_lock(rll_t
*rll
, rl_type_t type
)
1117 mutex_enter(&rll
->rll_lock
);
1119 if (type
== RL_READER
) {
1120 while (rll
->rll_writer
!= NULL
)
1121 (void) cv_wait(&rll
->rll_cv
, &rll
->rll_lock
);
1124 while (rll
->rll_writer
!= NULL
|| rll
->rll_readers
)
1125 (void) cv_wait(&rll
->rll_cv
, &rll
->rll_lock
);
1126 rll
->rll_writer
= curthread
;
1129 mutex_exit(&rll
->rll_lock
);
1133 ztest_rll_unlock(rll_t
*rll
)
1135 mutex_enter(&rll
->rll_lock
);
1137 if (rll
->rll_writer
) {
1138 ASSERT(rll
->rll_readers
== 0);
1139 rll
->rll_writer
= NULL
;
1141 ASSERT(rll
->rll_readers
!= 0);
1142 ASSERT(rll
->rll_writer
== NULL
);
1146 if (rll
->rll_writer
== NULL
&& rll
->rll_readers
== 0)
1147 cv_broadcast(&rll
->rll_cv
);
1149 mutex_exit(&rll
->rll_lock
);
1153 ztest_object_lock(ztest_ds_t
*zd
, uint64_t object
, rl_type_t type
)
1155 rll_t
*rll
= &zd
->zd_object_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1157 ztest_rll_lock(rll
, type
);
1161 ztest_object_unlock(ztest_ds_t
*zd
, uint64_t object
)
1163 rll_t
*rll
= &zd
->zd_object_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1165 ztest_rll_unlock(rll
);
1169 ztest_range_lock(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
,
1170 uint64_t size
, rl_type_t type
)
1172 uint64_t hash
= object
^ (offset
% (ZTEST_RANGE_LOCKS
+ 1));
1173 rll_t
*rll
= &zd
->zd_range_lock
[hash
& (ZTEST_RANGE_LOCKS
- 1)];
1176 rl
= umem_alloc(sizeof (*rl
), UMEM_NOFAIL
);
1177 rl
->rl_object
= object
;
1178 rl
->rl_offset
= offset
;
1182 ztest_rll_lock(rll
, type
);
1188 ztest_range_unlock(rl_t
*rl
)
1190 rll_t
*rll
= rl
->rl_lock
;
1192 ztest_rll_unlock(rll
);
1194 umem_free(rl
, sizeof (*rl
));
1198 ztest_zd_init(ztest_ds_t
*zd
, ztest_shared_ds_t
*szd
, objset_t
*os
)
1201 zd
->zd_zilog
= dmu_objset_zil(os
);
1202 zd
->zd_shared
= szd
;
1203 dmu_objset_name(os
, zd
->zd_name
);
1206 if (zd
->zd_shared
!= NULL
)
1207 zd
->zd_shared
->zd_seq
= 0;
1209 VERIFY(rwlock_init(&zd
->zd_zilog_lock
, USYNC_THREAD
, NULL
) == 0);
1210 mutex_init(&zd
->zd_dirobj_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
1212 for (l
= 0; l
< ZTEST_OBJECT_LOCKS
; l
++)
1213 ztest_rll_init(&zd
->zd_object_lock
[l
]);
1215 for (l
= 0; l
< ZTEST_RANGE_LOCKS
; l
++)
1216 ztest_rll_init(&zd
->zd_range_lock
[l
]);
1220 ztest_zd_fini(ztest_ds_t
*zd
)
1224 mutex_destroy(&zd
->zd_dirobj_lock
);
1225 (void) rwlock_destroy(&zd
->zd_zilog_lock
);
1227 for (l
= 0; l
< ZTEST_OBJECT_LOCKS
; l
++)
1228 ztest_rll_destroy(&zd
->zd_object_lock
[l
]);
1230 for (l
= 0; l
< ZTEST_RANGE_LOCKS
; l
++)
1231 ztest_rll_destroy(&zd
->zd_range_lock
[l
]);
1234 #define TXG_MIGHTWAIT (ztest_random(10) == 0 ? TXG_NOWAIT : TXG_WAIT)
1237 ztest_tx_assign(dmu_tx_t
*tx
, uint64_t txg_how
, const char *tag
)
1243 * Attempt to assign tx to some transaction group.
1245 error
= dmu_tx_assign(tx
, txg_how
);
1247 if (error
== ERESTART
) {
1248 ASSERT(txg_how
== TXG_NOWAIT
);
1251 ASSERT3U(error
, ==, ENOSPC
);
1252 ztest_record_enospc(tag
);
1257 txg
= dmu_tx_get_txg(tx
);
1263 ztest_pattern_set(void *buf
, uint64_t size
, uint64_t value
)
1266 uint64_t *ip_end
= (uint64_t *)((uintptr_t)buf
+ (uintptr_t)size
);
1274 ztest_pattern_match(void *buf
, uint64_t size
, uint64_t value
)
1277 uint64_t *ip_end
= (uint64_t *)((uintptr_t)buf
+ (uintptr_t)size
);
1281 diff
|= (value
- *ip
++);
1288 ztest_bt_generate(ztest_block_tag_t
*bt
, objset_t
*os
, uint64_t object
,
1289 uint64_t offset
, uint64_t gen
, uint64_t txg
, uint64_t crtxg
)
1291 bt
->bt_magic
= BT_MAGIC
;
1292 bt
->bt_objset
= dmu_objset_id(os
);
1293 bt
->bt_object
= object
;
1294 bt
->bt_offset
= offset
;
1297 bt
->bt_crtxg
= crtxg
;
1301 ztest_bt_verify(ztest_block_tag_t
*bt
, objset_t
*os
, uint64_t object
,
1302 uint64_t offset
, uint64_t gen
, uint64_t txg
, uint64_t crtxg
)
1304 ASSERT3U(bt
->bt_magic
, ==, BT_MAGIC
);
1305 ASSERT3U(bt
->bt_objset
, ==, dmu_objset_id(os
));
1306 ASSERT3U(bt
->bt_object
, ==, object
);
1307 ASSERT3U(bt
->bt_offset
, ==, offset
);
1308 ASSERT3U(bt
->bt_gen
, <=, gen
);
1309 ASSERT3U(bt
->bt_txg
, <=, txg
);
1310 ASSERT3U(bt
->bt_crtxg
, ==, crtxg
);
1313 static ztest_block_tag_t
*
1314 ztest_bt_bonus(dmu_buf_t
*db
)
1316 dmu_object_info_t doi
;
1317 ztest_block_tag_t
*bt
;
1319 dmu_object_info_from_db(db
, &doi
);
1320 ASSERT3U(doi
.doi_bonus_size
, <=, db
->db_size
);
1321 ASSERT3U(doi
.doi_bonus_size
, >=, sizeof (*bt
));
1322 bt
= (void *)((char *)db
->db_data
+ doi
.doi_bonus_size
- sizeof (*bt
));
1331 #define lrz_type lr_mode
1332 #define lrz_blocksize lr_uid
1333 #define lrz_ibshift lr_gid
1334 #define lrz_bonustype lr_rdev
1335 #define lrz_bonuslen lr_crtime[1]
1338 ztest_log_create(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_create_t
*lr
)
1340 char *name
= (void *)(lr
+ 1); /* name follows lr */
1341 size_t namesize
= strlen(name
) + 1;
1344 if (zil_replaying(zd
->zd_zilog
, tx
))
1347 itx
= zil_itx_create(TX_CREATE
, sizeof (*lr
) + namesize
);
1348 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1349 sizeof (*lr
) + namesize
- sizeof (lr_t
));
1351 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1355 ztest_log_remove(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_remove_t
*lr
, uint64_t object
)
1357 char *name
= (void *)(lr
+ 1); /* name follows lr */
1358 size_t namesize
= strlen(name
) + 1;
1361 if (zil_replaying(zd
->zd_zilog
, tx
))
1364 itx
= zil_itx_create(TX_REMOVE
, sizeof (*lr
) + namesize
);
1365 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1366 sizeof (*lr
) + namesize
- sizeof (lr_t
));
1368 itx
->itx_oid
= object
;
1369 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1373 ztest_log_write(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_write_t
*lr
)
1376 itx_wr_state_t write_state
= ztest_random(WR_NUM_STATES
);
1378 if (zil_replaying(zd
->zd_zilog
, tx
))
1381 if (lr
->lr_length
> ZIL_MAX_LOG_DATA
)
1382 write_state
= WR_INDIRECT
;
1384 itx
= zil_itx_create(TX_WRITE
,
1385 sizeof (*lr
) + (write_state
== WR_COPIED
? lr
->lr_length
: 0));
1387 if (write_state
== WR_COPIED
&&
1388 dmu_read(zd
->zd_os
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
,
1389 ((lr_write_t
*)&itx
->itx_lr
) + 1, DMU_READ_NO_PREFETCH
) != 0) {
1390 zil_itx_destroy(itx
);
1391 itx
= zil_itx_create(TX_WRITE
, sizeof (*lr
));
1392 write_state
= WR_NEED_COPY
;
1394 itx
->itx_private
= zd
;
1395 itx
->itx_wr_state
= write_state
;
1396 itx
->itx_sync
= (ztest_random(8) == 0);
1397 itx
->itx_sod
+= (write_state
== WR_NEED_COPY
? lr
->lr_length
: 0);
1399 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1400 sizeof (*lr
) - sizeof (lr_t
));
1402 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1406 ztest_log_truncate(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_truncate_t
*lr
)
1410 if (zil_replaying(zd
->zd_zilog
, tx
))
1413 itx
= zil_itx_create(TX_TRUNCATE
, sizeof (*lr
));
1414 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1415 sizeof (*lr
) - sizeof (lr_t
));
1417 itx
->itx_sync
= B_FALSE
;
1418 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1422 ztest_log_setattr(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_setattr_t
*lr
)
1426 if (zil_replaying(zd
->zd_zilog
, tx
))
1429 itx
= zil_itx_create(TX_SETATTR
, sizeof (*lr
));
1430 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1431 sizeof (*lr
) - sizeof (lr_t
));
1433 itx
->itx_sync
= B_FALSE
;
1434 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1441 ztest_replay_create(ztest_ds_t
*zd
, lr_create_t
*lr
, boolean_t byteswap
)
1443 char *name
= (void *)(lr
+ 1); /* name follows lr */
1444 objset_t
*os
= zd
->zd_os
;
1445 ztest_block_tag_t
*bbt
;
1452 byteswap_uint64_array(lr
, sizeof (*lr
));
1454 ASSERT(lr
->lr_doid
== ZTEST_DIROBJ
);
1455 ASSERT(name
[0] != '\0');
1457 tx
= dmu_tx_create(os
);
1459 dmu_tx_hold_zap(tx
, lr
->lr_doid
, B_TRUE
, name
);
1461 if (lr
->lrz_type
== DMU_OT_ZAP_OTHER
) {
1462 dmu_tx_hold_zap(tx
, DMU_NEW_OBJECT
, B_TRUE
, NULL
);
1464 dmu_tx_hold_bonus(tx
, DMU_NEW_OBJECT
);
1467 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1471 ASSERT(dmu_objset_zil(os
)->zl_replay
== !!lr
->lr_foid
);
1473 if (lr
->lrz_type
== DMU_OT_ZAP_OTHER
) {
1474 if (lr
->lr_foid
== 0) {
1475 lr
->lr_foid
= zap_create(os
,
1476 lr
->lrz_type
, lr
->lrz_bonustype
,
1477 lr
->lrz_bonuslen
, tx
);
1479 error
= zap_create_claim(os
, lr
->lr_foid
,
1480 lr
->lrz_type
, lr
->lrz_bonustype
,
1481 lr
->lrz_bonuslen
, tx
);
1484 if (lr
->lr_foid
== 0) {
1485 lr
->lr_foid
= dmu_object_alloc(os
,
1486 lr
->lrz_type
, 0, lr
->lrz_bonustype
,
1487 lr
->lrz_bonuslen
, tx
);
1489 error
= dmu_object_claim(os
, lr
->lr_foid
,
1490 lr
->lrz_type
, 0, lr
->lrz_bonustype
,
1491 lr
->lrz_bonuslen
, tx
);
1496 ASSERT3U(error
, ==, EEXIST
);
1497 ASSERT(zd
->zd_zilog
->zl_replay
);
1502 ASSERT(lr
->lr_foid
!= 0);
1504 if (lr
->lrz_type
!= DMU_OT_ZAP_OTHER
)
1505 VERIFY3U(0, ==, dmu_object_set_blocksize(os
, lr
->lr_foid
,
1506 lr
->lrz_blocksize
, lr
->lrz_ibshift
, tx
));
1508 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1509 bbt
= ztest_bt_bonus(db
);
1510 dmu_buf_will_dirty(db
, tx
);
1511 ztest_bt_generate(bbt
, os
, lr
->lr_foid
, -1ULL, lr
->lr_gen
, txg
, txg
);
1512 dmu_buf_rele(db
, FTAG
);
1514 VERIFY3U(0, ==, zap_add(os
, lr
->lr_doid
, name
, sizeof (uint64_t), 1,
1517 (void) ztest_log_create(zd
, tx
, lr
);
1525 ztest_replay_remove(ztest_ds_t
*zd
, lr_remove_t
*lr
, boolean_t byteswap
)
1527 char *name
= (void *)(lr
+ 1); /* name follows lr */
1528 objset_t
*os
= zd
->zd_os
;
1529 dmu_object_info_t doi
;
1531 uint64_t object
, txg
;
1534 byteswap_uint64_array(lr
, sizeof (*lr
));
1536 ASSERT(lr
->lr_doid
== ZTEST_DIROBJ
);
1537 ASSERT(name
[0] != '\0');
1540 zap_lookup(os
, lr
->lr_doid
, name
, sizeof (object
), 1, &object
));
1541 ASSERT(object
!= 0);
1543 ztest_object_lock(zd
, object
, RL_WRITER
);
1545 VERIFY3U(0, ==, dmu_object_info(os
, object
, &doi
));
1547 tx
= dmu_tx_create(os
);
1549 dmu_tx_hold_zap(tx
, lr
->lr_doid
, B_FALSE
, name
);
1550 dmu_tx_hold_free(tx
, object
, 0, DMU_OBJECT_END
);
1552 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1554 ztest_object_unlock(zd
, object
);
1558 if (doi
.doi_type
== DMU_OT_ZAP_OTHER
) {
1559 VERIFY3U(0, ==, zap_destroy(os
, object
, tx
));
1561 VERIFY3U(0, ==, dmu_object_free(os
, object
, tx
));
1564 VERIFY3U(0, ==, zap_remove(os
, lr
->lr_doid
, name
, tx
));
1566 (void) ztest_log_remove(zd
, tx
, lr
, object
);
1570 ztest_object_unlock(zd
, object
);
1576 ztest_replay_write(ztest_ds_t
*zd
, lr_write_t
*lr
, boolean_t byteswap
)
1578 objset_t
*os
= zd
->zd_os
;
1579 void *data
= lr
+ 1; /* data follows lr */
1580 uint64_t offset
, length
;
1581 ztest_block_tag_t
*bt
= data
;
1582 ztest_block_tag_t
*bbt
;
1583 uint64_t gen
, txg
, lrtxg
, crtxg
;
1584 dmu_object_info_t doi
;
1587 arc_buf_t
*abuf
= NULL
;
1591 byteswap_uint64_array(lr
, sizeof (*lr
));
1593 offset
= lr
->lr_offset
;
1594 length
= lr
->lr_length
;
1596 /* If it's a dmu_sync() block, write the whole block */
1597 if (lr
->lr_common
.lrc_reclen
== sizeof (lr_write_t
)) {
1598 uint64_t blocksize
= BP_GET_LSIZE(&lr
->lr_blkptr
);
1599 if (length
< blocksize
) {
1600 offset
-= offset
% blocksize
;
1605 if (bt
->bt_magic
== BSWAP_64(BT_MAGIC
))
1606 byteswap_uint64_array(bt
, sizeof (*bt
));
1608 if (bt
->bt_magic
!= BT_MAGIC
)
1611 ztest_object_lock(zd
, lr
->lr_foid
, RL_READER
);
1612 rl
= ztest_range_lock(zd
, lr
->lr_foid
, offset
, length
, RL_WRITER
);
1614 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1616 dmu_object_info_from_db(db
, &doi
);
1618 bbt
= ztest_bt_bonus(db
);
1619 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1621 crtxg
= bbt
->bt_crtxg
;
1622 lrtxg
= lr
->lr_common
.lrc_txg
;
1624 tx
= dmu_tx_create(os
);
1626 dmu_tx_hold_write(tx
, lr
->lr_foid
, offset
, length
);
1628 if (ztest_random(8) == 0 && length
== doi
.doi_data_block_size
&&
1629 P2PHASE(offset
, length
) == 0)
1630 abuf
= dmu_request_arcbuf(db
, length
);
1632 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1635 dmu_return_arcbuf(abuf
);
1636 dmu_buf_rele(db
, FTAG
);
1637 ztest_range_unlock(rl
);
1638 ztest_object_unlock(zd
, lr
->lr_foid
);
1644 * Usually, verify the old data before writing new data --
1645 * but not always, because we also want to verify correct
1646 * behavior when the data was not recently read into cache.
1648 ASSERT(offset
% doi
.doi_data_block_size
== 0);
1649 if (ztest_random(4) != 0) {
1650 int prefetch
= ztest_random(2) ?
1651 DMU_READ_PREFETCH
: DMU_READ_NO_PREFETCH
;
1652 ztest_block_tag_t rbt
;
1654 VERIFY(dmu_read(os
, lr
->lr_foid
, offset
,
1655 sizeof (rbt
), &rbt
, prefetch
) == 0);
1656 if (rbt
.bt_magic
== BT_MAGIC
) {
1657 ztest_bt_verify(&rbt
, os
, lr
->lr_foid
,
1658 offset
, gen
, txg
, crtxg
);
1663 * Writes can appear to be newer than the bonus buffer because
1664 * the ztest_get_data() callback does a dmu_read() of the
1665 * open-context data, which may be different than the data
1666 * as it was when the write was generated.
1668 if (zd
->zd_zilog
->zl_replay
) {
1669 ztest_bt_verify(bt
, os
, lr
->lr_foid
, offset
,
1670 MAX(gen
, bt
->bt_gen
), MAX(txg
, lrtxg
),
1675 * Set the bt's gen/txg to the bonus buffer's gen/txg
1676 * so that all of the usual ASSERTs will work.
1678 ztest_bt_generate(bt
, os
, lr
->lr_foid
, offset
, gen
, txg
, crtxg
);
1682 dmu_write(os
, lr
->lr_foid
, offset
, length
, data
, tx
);
1684 bcopy(data
, abuf
->b_data
, length
);
1685 dmu_assign_arcbuf(db
, offset
, abuf
, tx
);
1688 (void) ztest_log_write(zd
, tx
, lr
);
1690 dmu_buf_rele(db
, FTAG
);
1694 ztest_range_unlock(rl
);
1695 ztest_object_unlock(zd
, lr
->lr_foid
);
1701 ztest_replay_truncate(ztest_ds_t
*zd
, lr_truncate_t
*lr
, boolean_t byteswap
)
1703 objset_t
*os
= zd
->zd_os
;
1709 byteswap_uint64_array(lr
, sizeof (*lr
));
1711 ztest_object_lock(zd
, lr
->lr_foid
, RL_READER
);
1712 rl
= ztest_range_lock(zd
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
,
1715 tx
= dmu_tx_create(os
);
1717 dmu_tx_hold_free(tx
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
);
1719 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1721 ztest_range_unlock(rl
);
1722 ztest_object_unlock(zd
, lr
->lr_foid
);
1726 VERIFY(dmu_free_range(os
, lr
->lr_foid
, lr
->lr_offset
,
1727 lr
->lr_length
, tx
) == 0);
1729 (void) ztest_log_truncate(zd
, tx
, lr
);
1733 ztest_range_unlock(rl
);
1734 ztest_object_unlock(zd
, lr
->lr_foid
);
1740 ztest_replay_setattr(ztest_ds_t
*zd
, lr_setattr_t
*lr
, boolean_t byteswap
)
1742 objset_t
*os
= zd
->zd_os
;
1745 ztest_block_tag_t
*bbt
;
1746 uint64_t txg
, lrtxg
, crtxg
;
1749 byteswap_uint64_array(lr
, sizeof (*lr
));
1751 ztest_object_lock(zd
, lr
->lr_foid
, RL_WRITER
);
1753 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1755 tx
= dmu_tx_create(os
);
1756 dmu_tx_hold_bonus(tx
, lr
->lr_foid
);
1758 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1760 dmu_buf_rele(db
, FTAG
);
1761 ztest_object_unlock(zd
, lr
->lr_foid
);
1765 bbt
= ztest_bt_bonus(db
);
1766 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1767 crtxg
= bbt
->bt_crtxg
;
1768 lrtxg
= lr
->lr_common
.lrc_txg
;
1770 if (zd
->zd_zilog
->zl_replay
) {
1771 ASSERT(lr
->lr_size
!= 0);
1772 ASSERT(lr
->lr_mode
!= 0);
1776 * Randomly change the size and increment the generation.
1778 lr
->lr_size
= (ztest_random(db
->db_size
/ sizeof (*bbt
)) + 1) *
1780 lr
->lr_mode
= bbt
->bt_gen
+ 1;
1785 * Verify that the current bonus buffer is not newer than our txg.
1787 ztest_bt_verify(bbt
, os
, lr
->lr_foid
, -1ULL, lr
->lr_mode
,
1788 MAX(txg
, lrtxg
), crtxg
);
1790 dmu_buf_will_dirty(db
, tx
);
1792 ASSERT3U(lr
->lr_size
, >=, sizeof (*bbt
));
1793 ASSERT3U(lr
->lr_size
, <=, db
->db_size
);
1794 VERIFY0(dmu_set_bonus(db
, lr
->lr_size
, tx
));
1795 bbt
= ztest_bt_bonus(db
);
1797 ztest_bt_generate(bbt
, os
, lr
->lr_foid
, -1ULL, lr
->lr_mode
, txg
, crtxg
);
1799 dmu_buf_rele(db
, FTAG
);
1801 (void) ztest_log_setattr(zd
, tx
, lr
);
1805 ztest_object_unlock(zd
, lr
->lr_foid
);
1810 zil_replay_func_t ztest_replay_vector
[TX_MAX_TYPE
] = {
1811 NULL
, /* 0 no such transaction type */
1812 (zil_replay_func_t
)ztest_replay_create
, /* TX_CREATE */
1813 NULL
, /* TX_MKDIR */
1814 NULL
, /* TX_MKXATTR */
1815 NULL
, /* TX_SYMLINK */
1816 (zil_replay_func_t
)ztest_replay_remove
, /* TX_REMOVE */
1817 NULL
, /* TX_RMDIR */
1819 NULL
, /* TX_RENAME */
1820 (zil_replay_func_t
)ztest_replay_write
, /* TX_WRITE */
1821 (zil_replay_func_t
)ztest_replay_truncate
, /* TX_TRUNCATE */
1822 (zil_replay_func_t
)ztest_replay_setattr
, /* TX_SETATTR */
1824 NULL
, /* TX_CREATE_ACL */
1825 NULL
, /* TX_CREATE_ATTR */
1826 NULL
, /* TX_CREATE_ACL_ATTR */
1827 NULL
, /* TX_MKDIR_ACL */
1828 NULL
, /* TX_MKDIR_ATTR */
1829 NULL
, /* TX_MKDIR_ACL_ATTR */
1830 NULL
, /* TX_WRITE2 */
1834 * ZIL get_data callbacks
1838 ztest_get_done(zgd_t
*zgd
, int error
)
1840 ztest_ds_t
*zd
= zgd
->zgd_private
;
1841 uint64_t object
= zgd
->zgd_rl
->rl_object
;
1844 dmu_buf_rele(zgd
->zgd_db
, zgd
);
1846 ztest_range_unlock(zgd
->zgd_rl
);
1847 ztest_object_unlock(zd
, object
);
1849 if (error
== 0 && zgd
->zgd_bp
)
1850 zil_add_block(zgd
->zgd_zilog
, zgd
->zgd_bp
);
1852 umem_free(zgd
, sizeof (*zgd
));
1856 ztest_get_data(void *arg
, lr_write_t
*lr
, char *buf
, zio_t
*zio
)
1858 ztest_ds_t
*zd
= arg
;
1859 objset_t
*os
= zd
->zd_os
;
1860 uint64_t object
= lr
->lr_foid
;
1861 uint64_t offset
= lr
->lr_offset
;
1862 uint64_t size
= lr
->lr_length
;
1863 blkptr_t
*bp
= &lr
->lr_blkptr
;
1864 uint64_t txg
= lr
->lr_common
.lrc_txg
;
1866 dmu_object_info_t doi
;
1871 ztest_object_lock(zd
, object
, RL_READER
);
1872 error
= dmu_bonus_hold(os
, object
, FTAG
, &db
);
1874 ztest_object_unlock(zd
, object
);
1878 crtxg
= ztest_bt_bonus(db
)->bt_crtxg
;
1880 if (crtxg
== 0 || crtxg
> txg
) {
1881 dmu_buf_rele(db
, FTAG
);
1882 ztest_object_unlock(zd
, object
);
1886 dmu_object_info_from_db(db
, &doi
);
1887 dmu_buf_rele(db
, FTAG
);
1890 zgd
= umem_zalloc(sizeof (*zgd
), UMEM_NOFAIL
);
1891 zgd
->zgd_zilog
= zd
->zd_zilog
;
1892 zgd
->zgd_private
= zd
;
1894 if (buf
!= NULL
) { /* immediate write */
1895 zgd
->zgd_rl
= ztest_range_lock(zd
, object
, offset
, size
,
1898 error
= dmu_read(os
, object
, offset
, size
, buf
,
1899 DMU_READ_NO_PREFETCH
);
1902 size
= doi
.doi_data_block_size
;
1904 offset
= P2ALIGN(offset
, size
);
1906 ASSERT(offset
< size
);
1910 zgd
->zgd_rl
= ztest_range_lock(zd
, object
, offset
, size
,
1913 error
= dmu_buf_hold(os
, object
, offset
, zgd
, &db
,
1914 DMU_READ_NO_PREFETCH
);
1917 blkptr_t
*obp
= dmu_buf_get_blkptr(db
);
1919 ASSERT(BP_IS_HOLE(bp
));
1926 ASSERT(db
->db_offset
== offset
);
1927 ASSERT(db
->db_size
== size
);
1929 error
= dmu_sync(zio
, lr
->lr_common
.lrc_txg
,
1930 ztest_get_done
, zgd
);
1937 ztest_get_done(zgd
, error
);
1943 ztest_lr_alloc(size_t lrsize
, char *name
)
1946 size_t namesize
= name
? strlen(name
) + 1 : 0;
1948 lr
= umem_zalloc(lrsize
+ namesize
, UMEM_NOFAIL
);
1951 bcopy(name
, lr
+ lrsize
, namesize
);
1957 ztest_lr_free(void *lr
, size_t lrsize
, char *name
)
1959 size_t namesize
= name
? strlen(name
) + 1 : 0;
1961 umem_free(lr
, lrsize
+ namesize
);
1965 * Lookup a bunch of objects. Returns the number of objects not found.
1968 ztest_lookup(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
1974 ASSERT(mutex_held(&zd
->zd_dirobj_lock
));
1976 for (i
= 0; i
< count
; i
++, od
++) {
1978 error
= zap_lookup(zd
->zd_os
, od
->od_dir
, od
->od_name
,
1979 sizeof (uint64_t), 1, &od
->od_object
);
1981 ASSERT(error
== ENOENT
);
1982 ASSERT(od
->od_object
== 0);
1986 ztest_block_tag_t
*bbt
;
1987 dmu_object_info_t doi
;
1989 ASSERT(od
->od_object
!= 0);
1990 ASSERT(missing
== 0); /* there should be no gaps */
1992 ztest_object_lock(zd
, od
->od_object
, RL_READER
);
1993 VERIFY3U(0, ==, dmu_bonus_hold(zd
->zd_os
,
1994 od
->od_object
, FTAG
, &db
));
1995 dmu_object_info_from_db(db
, &doi
);
1996 bbt
= ztest_bt_bonus(db
);
1997 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1998 od
->od_type
= doi
.doi_type
;
1999 od
->od_blocksize
= doi
.doi_data_block_size
;
2000 od
->od_gen
= bbt
->bt_gen
;
2001 dmu_buf_rele(db
, FTAG
);
2002 ztest_object_unlock(zd
, od
->od_object
);
2010 ztest_create(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
2015 ASSERT(mutex_held(&zd
->zd_dirobj_lock
));
2017 for (i
= 0; i
< count
; i
++, od
++) {
2024 lr_create_t
*lr
= ztest_lr_alloc(sizeof (*lr
), od
->od_name
);
2026 lr
->lr_doid
= od
->od_dir
;
2027 lr
->lr_foid
= 0; /* 0 to allocate, > 0 to claim */
2028 lr
->lrz_type
= od
->od_crtype
;
2029 lr
->lrz_blocksize
= od
->od_crblocksize
;
2030 lr
->lrz_ibshift
= ztest_random_ibshift();
2031 lr
->lrz_bonustype
= DMU_OT_UINT64_OTHER
;
2032 lr
->lrz_bonuslen
= dmu_bonus_max();
2033 lr
->lr_gen
= od
->od_crgen
;
2034 lr
->lr_crtime
[0] = time(NULL
);
2036 if (ztest_replay_create(zd
, lr
, B_FALSE
) != 0) {
2037 ASSERT(missing
== 0);
2041 od
->od_object
= lr
->lr_foid
;
2042 od
->od_type
= od
->od_crtype
;
2043 od
->od_blocksize
= od
->od_crblocksize
;
2044 od
->od_gen
= od
->od_crgen
;
2045 ASSERT(od
->od_object
!= 0);
2048 ztest_lr_free(lr
, sizeof (*lr
), od
->od_name
);
2055 ztest_remove(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
2061 ASSERT(mutex_held(&zd
->zd_dirobj_lock
));
2065 for (i
= count
- 1; i
>= 0; i
--, od
--) {
2072 * No object was found.
2074 if (od
->od_object
== 0)
2077 lr_remove_t
*lr
= ztest_lr_alloc(sizeof (*lr
), od
->od_name
);
2079 lr
->lr_doid
= od
->od_dir
;
2081 if ((error
= ztest_replay_remove(zd
, lr
, B_FALSE
)) != 0) {
2082 ASSERT3U(error
, ==, ENOSPC
);
2087 ztest_lr_free(lr
, sizeof (*lr
), od
->od_name
);
2094 ztest_write(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
,
2100 lr
= ztest_lr_alloc(sizeof (*lr
) + size
, NULL
);
2102 lr
->lr_foid
= object
;
2103 lr
->lr_offset
= offset
;
2104 lr
->lr_length
= size
;
2106 BP_ZERO(&lr
->lr_blkptr
);
2108 bcopy(data
, lr
+ 1, size
);
2110 error
= ztest_replay_write(zd
, lr
, B_FALSE
);
2112 ztest_lr_free(lr
, sizeof (*lr
) + size
, NULL
);
2118 ztest_truncate(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
)
2123 lr
= ztest_lr_alloc(sizeof (*lr
), NULL
);
2125 lr
->lr_foid
= object
;
2126 lr
->lr_offset
= offset
;
2127 lr
->lr_length
= size
;
2129 error
= ztest_replay_truncate(zd
, lr
, B_FALSE
);
2131 ztest_lr_free(lr
, sizeof (*lr
), NULL
);
2137 ztest_setattr(ztest_ds_t
*zd
, uint64_t object
)
2142 lr
= ztest_lr_alloc(sizeof (*lr
), NULL
);
2144 lr
->lr_foid
= object
;
2148 error
= ztest_replay_setattr(zd
, lr
, B_FALSE
);
2150 ztest_lr_free(lr
, sizeof (*lr
), NULL
);
2156 ztest_prealloc(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
)
2158 objset_t
*os
= zd
->zd_os
;
2163 txg_wait_synced(dmu_objset_pool(os
), 0);
2165 ztest_object_lock(zd
, object
, RL_READER
);
2166 rl
= ztest_range_lock(zd
, object
, offset
, size
, RL_WRITER
);
2168 tx
= dmu_tx_create(os
);
2170 dmu_tx_hold_write(tx
, object
, offset
, size
);
2172 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
2175 dmu_prealloc(os
, object
, offset
, size
, tx
);
2177 txg_wait_synced(dmu_objset_pool(os
), txg
);
2179 (void) dmu_free_long_range(os
, object
, offset
, size
);
2182 ztest_range_unlock(rl
);
2183 ztest_object_unlock(zd
, object
);
2187 ztest_io(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
)
2190 ztest_block_tag_t wbt
;
2191 dmu_object_info_t doi
;
2192 enum ztest_io_type io_type
;
2196 VERIFY(dmu_object_info(zd
->zd_os
, object
, &doi
) == 0);
2197 blocksize
= doi
.doi_data_block_size
;
2198 data
= umem_alloc(blocksize
, UMEM_NOFAIL
);
2201 * Pick an i/o type at random, biased toward writing block tags.
2203 io_type
= ztest_random(ZTEST_IO_TYPES
);
2204 if (ztest_random(2) == 0)
2205 io_type
= ZTEST_IO_WRITE_TAG
;
2207 (void) rw_rdlock(&zd
->zd_zilog_lock
);
2211 case ZTEST_IO_WRITE_TAG
:
2212 ztest_bt_generate(&wbt
, zd
->zd_os
, object
, offset
, 0, 0, 0);
2213 (void) ztest_write(zd
, object
, offset
, sizeof (wbt
), &wbt
);
2216 case ZTEST_IO_WRITE_PATTERN
:
2217 (void) memset(data
, 'a' + (object
+ offset
) % 5, blocksize
);
2218 if (ztest_random(2) == 0) {
2220 * Induce fletcher2 collisions to ensure that
2221 * zio_ddt_collision() detects and resolves them
2222 * when using fletcher2-verify for deduplication.
2224 ((uint64_t *)data
)[0] ^= 1ULL << 63;
2225 ((uint64_t *)data
)[4] ^= 1ULL << 63;
2227 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2230 case ZTEST_IO_WRITE_ZEROES
:
2231 bzero(data
, blocksize
);
2232 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2235 case ZTEST_IO_TRUNCATE
:
2236 (void) ztest_truncate(zd
, object
, offset
, blocksize
);
2239 case ZTEST_IO_SETATTR
:
2240 (void) ztest_setattr(zd
, object
);
2245 case ZTEST_IO_REWRITE
:
2246 (void) rw_rdlock(&ztest_name_lock
);
2247 err
= ztest_dsl_prop_set_uint64(zd
->zd_name
,
2248 ZFS_PROP_CHECKSUM
, spa_dedup_checksum(ztest_spa
),
2250 VERIFY(err
== 0 || err
== ENOSPC
);
2251 err
= ztest_dsl_prop_set_uint64(zd
->zd_name
,
2252 ZFS_PROP_COMPRESSION
,
2253 ztest_random_dsl_prop(ZFS_PROP_COMPRESSION
),
2255 VERIFY(err
== 0 || err
== ENOSPC
);
2256 (void) rw_unlock(&ztest_name_lock
);
2258 VERIFY0(dmu_read(zd
->zd_os
, object
, offset
, blocksize
, data
,
2259 DMU_READ_NO_PREFETCH
));
2261 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2265 (void) rw_unlock(&zd
->zd_zilog_lock
);
2267 umem_free(data
, blocksize
);
2271 * Initialize an object description template.
2274 ztest_od_init(ztest_od_t
*od
, uint64_t id
, char *tag
, uint64_t index
,
2275 dmu_object_type_t type
, uint64_t blocksize
, uint64_t gen
)
2277 od
->od_dir
= ZTEST_DIROBJ
;
2280 od
->od_crtype
= type
;
2281 od
->od_crblocksize
= blocksize
? blocksize
: ztest_random_blocksize();
2284 od
->od_type
= DMU_OT_NONE
;
2285 od
->od_blocksize
= 0;
2288 (void) snprintf(od
->od_name
, sizeof (od
->od_name
), "%s(%lld)[%llu]",
2289 tag
, (longlong_t
)id
, (u_longlong_t
)index
);
2293 * Lookup or create the objects for a test using the od template.
2294 * If the objects do not all exist, or if 'remove' is specified,
2295 * remove any existing objects and create new ones. Otherwise,
2296 * use the existing objects.
2299 ztest_object_init(ztest_ds_t
*zd
, ztest_od_t
*od
, size_t size
, boolean_t remove
)
2301 int count
= size
/ sizeof (*od
);
2304 mutex_enter(&zd
->zd_dirobj_lock
);
2305 if ((ztest_lookup(zd
, od
, count
) != 0 || remove
) &&
2306 (ztest_remove(zd
, od
, count
) != 0 ||
2307 ztest_create(zd
, od
, count
) != 0))
2310 mutex_exit(&zd
->zd_dirobj_lock
);
2317 ztest_zil_commit(ztest_ds_t
*zd
, uint64_t id
)
2319 zilog_t
*zilog
= zd
->zd_zilog
;
2321 (void) rw_rdlock(&zd
->zd_zilog_lock
);
2323 zil_commit(zilog
, ztest_random(ZTEST_OBJECTS
));
2326 * Remember the committed values in zd, which is in parent/child
2327 * shared memory. If we die, the next iteration of ztest_run()
2328 * will verify that the log really does contain this record.
2330 mutex_enter(&zilog
->zl_lock
);
2331 ASSERT(zd
->zd_shared
!= NULL
);
2332 ASSERT3U(zd
->zd_shared
->zd_seq
, <=, zilog
->zl_commit_lr_seq
);
2333 zd
->zd_shared
->zd_seq
= zilog
->zl_commit_lr_seq
;
2334 mutex_exit(&zilog
->zl_lock
);
2336 (void) rw_unlock(&zd
->zd_zilog_lock
);
2340 * This function is designed to simulate the operations that occur during a
2341 * mount/unmount operation. We hold the dataset across these operations in an
2342 * attempt to expose any implicit assumptions about ZIL management.
2346 ztest_zil_remount(ztest_ds_t
*zd
, uint64_t id
)
2348 objset_t
*os
= zd
->zd_os
;
2351 * We grab the zd_dirobj_lock to ensure that no other thread is
2352 * updating the zil (i.e. adding in-memory log records) and the
2353 * zd_zilog_lock to block any I/O.
2355 mutex_enter(&zd
->zd_dirobj_lock
);
2356 (void) rw_wrlock(&zd
->zd_zilog_lock
);
2358 /* zfs_sb_teardown() */
2359 zil_close(zd
->zd_zilog
);
2361 /* zfsvfs_setup() */
2362 VERIFY(zil_open(os
, ztest_get_data
) == zd
->zd_zilog
);
2363 zil_replay(os
, zd
, ztest_replay_vector
);
2365 (void) rw_unlock(&zd
->zd_zilog_lock
);
2366 mutex_exit(&zd
->zd_dirobj_lock
);
2370 * Verify that we can't destroy an active pool, create an existing pool,
2371 * or create a pool with a bad vdev spec.
2375 ztest_spa_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
2377 ztest_shared_opts_t
*zo
= &ztest_opts
;
2382 * Attempt to create using a bad file.
2384 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 0, 1);
2385 VERIFY3U(ENOENT
, ==,
2386 spa_create("ztest_bad_file", nvroot
, NULL
, NULL
));
2387 nvlist_free(nvroot
);
2390 * Attempt to create using a bad mirror.
2392 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 2, 1);
2393 VERIFY3U(ENOENT
, ==,
2394 spa_create("ztest_bad_mirror", nvroot
, NULL
, NULL
));
2395 nvlist_free(nvroot
);
2398 * Attempt to create an existing pool. It shouldn't matter
2399 * what's in the nvroot; we should fail with EEXIST.
2401 (void) rw_rdlock(&ztest_name_lock
);
2402 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 0, 1);
2403 VERIFY3U(EEXIST
, ==, spa_create(zo
->zo_pool
, nvroot
, NULL
, NULL
));
2404 nvlist_free(nvroot
);
2405 VERIFY3U(0, ==, spa_open(zo
->zo_pool
, &spa
, FTAG
));
2406 VERIFY3U(EBUSY
, ==, spa_destroy(zo
->zo_pool
));
2407 spa_close(spa
, FTAG
);
2409 (void) rw_unlock(&ztest_name_lock
);
2414 ztest_spa_upgrade(ztest_ds_t
*zd
, uint64_t id
)
2417 uint64_t initial_version
= SPA_VERSION_INITIAL
;
2418 uint64_t version
, newversion
;
2419 nvlist_t
*nvroot
, *props
;
2422 mutex_enter(&ztest_vdev_lock
);
2423 name
= kmem_asprintf("%s_upgrade", ztest_opts
.zo_pool
);
2426 * Clean up from previous runs.
2428 (void) spa_destroy(name
);
2430 nvroot
= make_vdev_root(NULL
, NULL
, name
, ztest_opts
.zo_vdev_size
, 0,
2431 0, ztest_opts
.zo_raidz
, ztest_opts
.zo_mirrors
, 1);
2434 * If we're configuring a RAIDZ device then make sure that the
2435 * the initial version is capable of supporting that feature.
2437 switch (ztest_opts
.zo_raidz_parity
) {
2440 initial_version
= SPA_VERSION_INITIAL
;
2443 initial_version
= SPA_VERSION_RAIDZ2
;
2446 initial_version
= SPA_VERSION_RAIDZ3
;
2451 * Create a pool with a spa version that can be upgraded. Pick
2452 * a value between initial_version and SPA_VERSION_BEFORE_FEATURES.
2455 version
= ztest_random_spa_version(initial_version
);
2456 } while (version
> SPA_VERSION_BEFORE_FEATURES
);
2458 props
= fnvlist_alloc();
2459 fnvlist_add_uint64(props
,
2460 zpool_prop_to_name(ZPOOL_PROP_VERSION
), version
);
2461 VERIFY3S(spa_create(name
, nvroot
, props
, NULL
), ==, 0);
2462 fnvlist_free(nvroot
);
2463 fnvlist_free(props
);
2465 VERIFY3S(spa_open(name
, &spa
, FTAG
), ==, 0);
2466 VERIFY3U(spa_version(spa
), ==, version
);
2467 newversion
= ztest_random_spa_version(version
+ 1);
2469 if (ztest_opts
.zo_verbose
>= 4) {
2470 (void) printf("upgrading spa version from %llu to %llu\n",
2471 (u_longlong_t
)version
, (u_longlong_t
)newversion
);
2474 spa_upgrade(spa
, newversion
);
2475 VERIFY3U(spa_version(spa
), >, version
);
2476 VERIFY3U(spa_version(spa
), ==, fnvlist_lookup_uint64(spa
->spa_config
,
2477 zpool_prop_to_name(ZPOOL_PROP_VERSION
)));
2478 spa_close(spa
, FTAG
);
2481 mutex_exit(&ztest_vdev_lock
);
2485 vdev_lookup_by_path(vdev_t
*vd
, const char *path
)
2490 if (vd
->vdev_path
!= NULL
&& strcmp(path
, vd
->vdev_path
) == 0)
2493 for (c
= 0; c
< vd
->vdev_children
; c
++)
2494 if ((mvd
= vdev_lookup_by_path(vd
->vdev_child
[c
], path
)) !=
2502 * Find the first available hole which can be used as a top-level.
2505 find_vdev_hole(spa_t
*spa
)
2507 vdev_t
*rvd
= spa
->spa_root_vdev
;
2510 ASSERT(spa_config_held(spa
, SCL_VDEV
, RW_READER
) == SCL_VDEV
);
2512 for (c
= 0; c
< rvd
->vdev_children
; c
++) {
2513 vdev_t
*cvd
= rvd
->vdev_child
[c
];
2515 if (cvd
->vdev_ishole
)
2522 * Verify that vdev_add() works as expected.
2526 ztest_vdev_add_remove(ztest_ds_t
*zd
, uint64_t id
)
2528 ztest_shared_t
*zs
= ztest_shared
;
2529 spa_t
*spa
= ztest_spa
;
2535 mutex_enter(&ztest_vdev_lock
);
2536 leaves
= MAX(zs
->zs_mirrors
+ zs
->zs_splits
, 1) * ztest_opts
.zo_raidz
;
2538 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2540 ztest_shared
->zs_vdev_next_leaf
= find_vdev_hole(spa
) * leaves
;
2543 * If we have slogs then remove them 1/4 of the time.
2545 if (spa_has_slogs(spa
) && ztest_random(4) == 0) {
2547 * Grab the guid from the head of the log class rotor.
2549 guid
= spa_log_class(spa
)->mc_rotor
->mg_vd
->vdev_guid
;
2551 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2554 * We have to grab the zs_name_lock as writer to
2555 * prevent a race between removing a slog (dmu_objset_find)
2556 * and destroying a dataset. Removing the slog will
2557 * grab a reference on the dataset which may cause
2558 * dsl_destroy_head() to fail with EBUSY thus
2559 * leaving the dataset in an inconsistent state.
2561 rw_wrlock(&ztest_name_lock
);
2562 error
= spa_vdev_remove(spa
, guid
, B_FALSE
);
2563 rw_unlock(&ztest_name_lock
);
2565 if (error
&& error
!= EEXIST
)
2566 fatal(0, "spa_vdev_remove() = %d", error
);
2568 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2571 * Make 1/4 of the devices be log devices.
2573 nvroot
= make_vdev_root(NULL
, NULL
, NULL
,
2574 ztest_opts
.zo_vdev_size
, 0,
2575 ztest_random(4) == 0, ztest_opts
.zo_raidz
,
2578 error
= spa_vdev_add(spa
, nvroot
);
2579 nvlist_free(nvroot
);
2581 if (error
== ENOSPC
)
2582 ztest_record_enospc("spa_vdev_add");
2583 else if (error
!= 0)
2584 fatal(0, "spa_vdev_add() = %d", error
);
2587 mutex_exit(&ztest_vdev_lock
);
2591 * Verify that adding/removing aux devices (l2arc, hot spare) works as expected.
2595 ztest_vdev_aux_add_remove(ztest_ds_t
*zd
, uint64_t id
)
2597 ztest_shared_t
*zs
= ztest_shared
;
2598 spa_t
*spa
= ztest_spa
;
2599 vdev_t
*rvd
= spa
->spa_root_vdev
;
2600 spa_aux_vdev_t
*sav
;
2606 path
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
2608 if (ztest_random(2) == 0) {
2609 sav
= &spa
->spa_spares
;
2610 aux
= ZPOOL_CONFIG_SPARES
;
2612 sav
= &spa
->spa_l2cache
;
2613 aux
= ZPOOL_CONFIG_L2CACHE
;
2616 mutex_enter(&ztest_vdev_lock
);
2618 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2620 if (sav
->sav_count
!= 0 && ztest_random(4) == 0) {
2622 * Pick a random device to remove.
2624 guid
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)]->vdev_guid
;
2627 * Find an unused device we can add.
2629 zs
->zs_vdev_aux
= 0;
2632 (void) snprintf(path
, MAXPATHLEN
, ztest_aux_template
,
2633 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
, aux
,
2635 for (c
= 0; c
< sav
->sav_count
; c
++)
2636 if (strcmp(sav
->sav_vdevs
[c
]->vdev_path
,
2639 if (c
== sav
->sav_count
&&
2640 vdev_lookup_by_path(rvd
, path
) == NULL
)
2646 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2652 nvlist_t
*nvroot
= make_vdev_root(NULL
, aux
, NULL
,
2653 (ztest_opts
.zo_vdev_size
* 5) / 4, 0, 0, 0, 0, 1);
2654 error
= spa_vdev_add(spa
, nvroot
);
2656 fatal(0, "spa_vdev_add(%p) = %d", nvroot
, error
);
2657 nvlist_free(nvroot
);
2660 * Remove an existing device. Sometimes, dirty its
2661 * vdev state first to make sure we handle removal
2662 * of devices that have pending state changes.
2664 if (ztest_random(2) == 0)
2665 (void) vdev_online(spa
, guid
, 0, NULL
);
2667 error
= spa_vdev_remove(spa
, guid
, B_FALSE
);
2668 if (error
!= 0 && error
!= EBUSY
)
2669 fatal(0, "spa_vdev_remove(%llu) = %d", guid
, error
);
2672 mutex_exit(&ztest_vdev_lock
);
2674 umem_free(path
, MAXPATHLEN
);
2678 * split a pool if it has mirror tlvdevs
2682 ztest_split_pool(ztest_ds_t
*zd
, uint64_t id
)
2684 ztest_shared_t
*zs
= ztest_shared
;
2685 spa_t
*spa
= ztest_spa
;
2686 vdev_t
*rvd
= spa
->spa_root_vdev
;
2687 nvlist_t
*tree
, **child
, *config
, *split
, **schild
;
2688 uint_t c
, children
, schildren
= 0, lastlogid
= 0;
2691 mutex_enter(&ztest_vdev_lock
);
2693 /* ensure we have a useable config; mirrors of raidz aren't supported */
2694 if (zs
->zs_mirrors
< 3 || ztest_opts
.zo_raidz
> 1) {
2695 mutex_exit(&ztest_vdev_lock
);
2699 /* clean up the old pool, if any */
2700 (void) spa_destroy("splitp");
2702 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2704 /* generate a config from the existing config */
2705 mutex_enter(&spa
->spa_props_lock
);
2706 VERIFY(nvlist_lookup_nvlist(spa
->spa_config
, ZPOOL_CONFIG_VDEV_TREE
,
2708 mutex_exit(&spa
->spa_props_lock
);
2710 VERIFY(nvlist_lookup_nvlist_array(tree
, ZPOOL_CONFIG_CHILDREN
, &child
,
2713 schild
= malloc(rvd
->vdev_children
* sizeof (nvlist_t
*));
2714 for (c
= 0; c
< children
; c
++) {
2715 vdev_t
*tvd
= rvd
->vdev_child
[c
];
2719 if (tvd
->vdev_islog
|| tvd
->vdev_ops
== &vdev_hole_ops
) {
2720 VERIFY(nvlist_alloc(&schild
[schildren
], NV_UNIQUE_NAME
,
2722 VERIFY(nvlist_add_string(schild
[schildren
],
2723 ZPOOL_CONFIG_TYPE
, VDEV_TYPE_HOLE
) == 0);
2724 VERIFY(nvlist_add_uint64(schild
[schildren
],
2725 ZPOOL_CONFIG_IS_HOLE
, 1) == 0);
2727 lastlogid
= schildren
;
2732 VERIFY(nvlist_lookup_nvlist_array(child
[c
],
2733 ZPOOL_CONFIG_CHILDREN
, &mchild
, &mchildren
) == 0);
2734 VERIFY(nvlist_dup(mchild
[0], &schild
[schildren
++], 0) == 0);
2737 /* OK, create a config that can be used to split */
2738 VERIFY(nvlist_alloc(&split
, NV_UNIQUE_NAME
, 0) == 0);
2739 VERIFY(nvlist_add_string(split
, ZPOOL_CONFIG_TYPE
,
2740 VDEV_TYPE_ROOT
) == 0);
2741 VERIFY(nvlist_add_nvlist_array(split
, ZPOOL_CONFIG_CHILDREN
, schild
,
2742 lastlogid
!= 0 ? lastlogid
: schildren
) == 0);
2744 VERIFY(nvlist_alloc(&config
, NV_UNIQUE_NAME
, 0) == 0);
2745 VERIFY(nvlist_add_nvlist(config
, ZPOOL_CONFIG_VDEV_TREE
, split
) == 0);
2747 for (c
= 0; c
< schildren
; c
++)
2748 nvlist_free(schild
[c
]);
2752 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2754 (void) rw_wrlock(&ztest_name_lock
);
2755 error
= spa_vdev_split_mirror(spa
, "splitp", config
, NULL
, B_FALSE
);
2756 (void) rw_unlock(&ztest_name_lock
);
2758 nvlist_free(config
);
2761 (void) printf("successful split - results:\n");
2762 mutex_enter(&spa_namespace_lock
);
2763 show_pool_stats(spa
);
2764 show_pool_stats(spa_lookup("splitp"));
2765 mutex_exit(&spa_namespace_lock
);
2769 mutex_exit(&ztest_vdev_lock
);
2774 * Verify that we can attach and detach devices.
2778 ztest_vdev_attach_detach(ztest_ds_t
*zd
, uint64_t id
)
2780 ztest_shared_t
*zs
= ztest_shared
;
2781 spa_t
*spa
= ztest_spa
;
2782 spa_aux_vdev_t
*sav
= &spa
->spa_spares
;
2783 vdev_t
*rvd
= spa
->spa_root_vdev
;
2784 vdev_t
*oldvd
, *newvd
, *pvd
;
2788 uint64_t ashift
= ztest_get_ashift();
2789 uint64_t oldguid
, pguid
;
2790 uint64_t oldsize
, newsize
;
2791 char *oldpath
, *newpath
;
2793 int oldvd_has_siblings
= B_FALSE
;
2794 int newvd_is_spare
= B_FALSE
;
2796 int error
, expected_error
;
2798 oldpath
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
2799 newpath
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
2801 mutex_enter(&ztest_vdev_lock
);
2802 leaves
= MAX(zs
->zs_mirrors
, 1) * ztest_opts
.zo_raidz
;
2804 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2807 * Decide whether to do an attach or a replace.
2809 replacing
= ztest_random(2);
2812 * Pick a random top-level vdev.
2814 top
= ztest_random_vdev_top(spa
, B_TRUE
);
2817 * Pick a random leaf within it.
2819 leaf
= ztest_random(leaves
);
2824 oldvd
= rvd
->vdev_child
[top
];
2825 if (zs
->zs_mirrors
>= 1) {
2826 ASSERT(oldvd
->vdev_ops
== &vdev_mirror_ops
);
2827 ASSERT(oldvd
->vdev_children
>= zs
->zs_mirrors
);
2828 oldvd
= oldvd
->vdev_child
[leaf
/ ztest_opts
.zo_raidz
];
2830 if (ztest_opts
.zo_raidz
> 1) {
2831 ASSERT(oldvd
->vdev_ops
== &vdev_raidz_ops
);
2832 ASSERT(oldvd
->vdev_children
== ztest_opts
.zo_raidz
);
2833 oldvd
= oldvd
->vdev_child
[leaf
% ztest_opts
.zo_raidz
];
2837 * If we're already doing an attach or replace, oldvd may be a
2838 * mirror vdev -- in which case, pick a random child.
2840 while (oldvd
->vdev_children
!= 0) {
2841 oldvd_has_siblings
= B_TRUE
;
2842 ASSERT(oldvd
->vdev_children
>= 2);
2843 oldvd
= oldvd
->vdev_child
[ztest_random(oldvd
->vdev_children
)];
2846 oldguid
= oldvd
->vdev_guid
;
2847 oldsize
= vdev_get_min_asize(oldvd
);
2848 oldvd_is_log
= oldvd
->vdev_top
->vdev_islog
;
2849 (void) strcpy(oldpath
, oldvd
->vdev_path
);
2850 pvd
= oldvd
->vdev_parent
;
2851 pguid
= pvd
->vdev_guid
;
2854 * If oldvd has siblings, then half of the time, detach it.
2856 if (oldvd_has_siblings
&& ztest_random(2) == 0) {
2857 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2858 error
= spa_vdev_detach(spa
, oldguid
, pguid
, B_FALSE
);
2859 if (error
!= 0 && error
!= ENODEV
&& error
!= EBUSY
&&
2861 fatal(0, "detach (%s) returned %d", oldpath
, error
);
2866 * For the new vdev, choose with equal probability between the two
2867 * standard paths (ending in either 'a' or 'b') or a random hot spare.
2869 if (sav
->sav_count
!= 0 && ztest_random(3) == 0) {
2870 newvd
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)];
2871 newvd_is_spare
= B_TRUE
;
2872 (void) strcpy(newpath
, newvd
->vdev_path
);
2874 (void) snprintf(newpath
, MAXPATHLEN
, ztest_dev_template
,
2875 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
2876 top
* leaves
+ leaf
);
2877 if (ztest_random(2) == 0)
2878 newpath
[strlen(newpath
) - 1] = 'b';
2879 newvd
= vdev_lookup_by_path(rvd
, newpath
);
2883 newsize
= vdev_get_min_asize(newvd
);
2886 * Make newsize a little bigger or smaller than oldsize.
2887 * If it's smaller, the attach should fail.
2888 * If it's larger, and we're doing a replace,
2889 * we should get dynamic LUN growth when we're done.
2891 newsize
= 10 * oldsize
/ (9 + ztest_random(3));
2895 * If pvd is not a mirror or root, the attach should fail with ENOTSUP,
2896 * unless it's a replace; in that case any non-replacing parent is OK.
2898 * If newvd is already part of the pool, it should fail with EBUSY.
2900 * If newvd is too small, it should fail with EOVERFLOW.
2902 if (pvd
->vdev_ops
!= &vdev_mirror_ops
&&
2903 pvd
->vdev_ops
!= &vdev_root_ops
&& (!replacing
||
2904 pvd
->vdev_ops
== &vdev_replacing_ops
||
2905 pvd
->vdev_ops
== &vdev_spare_ops
))
2906 expected_error
= ENOTSUP
;
2907 else if (newvd_is_spare
&& (!replacing
|| oldvd_is_log
))
2908 expected_error
= ENOTSUP
;
2909 else if (newvd
== oldvd
)
2910 expected_error
= replacing
? 0 : EBUSY
;
2911 else if (vdev_lookup_by_path(rvd
, newpath
) != NULL
)
2912 expected_error
= EBUSY
;
2913 else if (newsize
< oldsize
)
2914 expected_error
= EOVERFLOW
;
2915 else if (ashift
> oldvd
->vdev_top
->vdev_ashift
)
2916 expected_error
= EDOM
;
2920 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2923 * Build the nvlist describing newpath.
2925 root
= make_vdev_root(newpath
, NULL
, NULL
, newvd
== NULL
? newsize
: 0,
2926 ashift
, 0, 0, 0, 1);
2928 error
= spa_vdev_attach(spa
, oldguid
, root
, replacing
);
2933 * If our parent was the replacing vdev, but the replace completed,
2934 * then instead of failing with ENOTSUP we may either succeed,
2935 * fail with ENODEV, or fail with EOVERFLOW.
2937 if (expected_error
== ENOTSUP
&&
2938 (error
== 0 || error
== ENODEV
|| error
== EOVERFLOW
))
2939 expected_error
= error
;
2942 * If someone grew the LUN, the replacement may be too small.
2944 if (error
== EOVERFLOW
|| error
== EBUSY
)
2945 expected_error
= error
;
2947 /* XXX workaround 6690467 */
2948 if (error
!= expected_error
&& expected_error
!= EBUSY
) {
2949 fatal(0, "attach (%s %llu, %s %llu, %d) "
2950 "returned %d, expected %d",
2951 oldpath
, oldsize
, newpath
,
2952 newsize
, replacing
, error
, expected_error
);
2955 mutex_exit(&ztest_vdev_lock
);
2957 umem_free(oldpath
, MAXPATHLEN
);
2958 umem_free(newpath
, MAXPATHLEN
);
2962 * Callback function which expands the physical size of the vdev.
2965 grow_vdev(vdev_t
*vd
, void *arg
)
2967 ASSERTV(spa_t
*spa
= vd
->vdev_spa
);
2968 size_t *newsize
= arg
;
2972 ASSERT(spa_config_held(spa
, SCL_STATE
, RW_READER
) == SCL_STATE
);
2973 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
2975 if ((fd
= open(vd
->vdev_path
, O_RDWR
)) == -1)
2978 fsize
= lseek(fd
, 0, SEEK_END
);
2979 VERIFY(ftruncate(fd
, *newsize
) == 0);
2981 if (ztest_opts
.zo_verbose
>= 6) {
2982 (void) printf("%s grew from %lu to %lu bytes\n",
2983 vd
->vdev_path
, (ulong_t
)fsize
, (ulong_t
)*newsize
);
2990 * Callback function which expands a given vdev by calling vdev_online().
2994 online_vdev(vdev_t
*vd
, void *arg
)
2996 spa_t
*spa
= vd
->vdev_spa
;
2997 vdev_t
*tvd
= vd
->vdev_top
;
2998 uint64_t guid
= vd
->vdev_guid
;
2999 uint64_t generation
= spa
->spa_config_generation
+ 1;
3000 vdev_state_t newstate
= VDEV_STATE_UNKNOWN
;
3003 ASSERT(spa_config_held(spa
, SCL_STATE
, RW_READER
) == SCL_STATE
);
3004 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
3006 /* Calling vdev_online will initialize the new metaslabs */
3007 spa_config_exit(spa
, SCL_STATE
, spa
);
3008 error
= vdev_online(spa
, guid
, ZFS_ONLINE_EXPAND
, &newstate
);
3009 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3012 * If vdev_online returned an error or the underlying vdev_open
3013 * failed then we abort the expand. The only way to know that
3014 * vdev_open fails is by checking the returned newstate.
3016 if (error
|| newstate
!= VDEV_STATE_HEALTHY
) {
3017 if (ztest_opts
.zo_verbose
>= 5) {
3018 (void) printf("Unable to expand vdev, state %llu, "
3019 "error %d\n", (u_longlong_t
)newstate
, error
);
3023 ASSERT3U(newstate
, ==, VDEV_STATE_HEALTHY
);
3026 * Since we dropped the lock we need to ensure that we're
3027 * still talking to the original vdev. It's possible this
3028 * vdev may have been detached/replaced while we were
3029 * trying to online it.
3031 if (generation
!= spa
->spa_config_generation
) {
3032 if (ztest_opts
.zo_verbose
>= 5) {
3033 (void) printf("vdev configuration has changed, "
3034 "guid %llu, state %llu, expected gen %llu, "
3037 (u_longlong_t
)tvd
->vdev_state
,
3038 (u_longlong_t
)generation
,
3039 (u_longlong_t
)spa
->spa_config_generation
);
3047 * Traverse the vdev tree calling the supplied function.
3048 * We continue to walk the tree until we either have walked all
3049 * children or we receive a non-NULL return from the callback.
3050 * If a NULL callback is passed, then we just return back the first
3051 * leaf vdev we encounter.
3054 vdev_walk_tree(vdev_t
*vd
, vdev_t
*(*func
)(vdev_t
*, void *), void *arg
)
3058 if (vd
->vdev_ops
->vdev_op_leaf
) {
3062 return (func(vd
, arg
));
3065 for (c
= 0; c
< vd
->vdev_children
; c
++) {
3066 vdev_t
*cvd
= vd
->vdev_child
[c
];
3067 if ((cvd
= vdev_walk_tree(cvd
, func
, arg
)) != NULL
)
3074 * Verify that dynamic LUN growth works as expected.
3078 ztest_vdev_LUN_growth(ztest_ds_t
*zd
, uint64_t id
)
3080 spa_t
*spa
= ztest_spa
;
3082 metaslab_class_t
*mc
;
3083 metaslab_group_t
*mg
;
3084 size_t psize
, newsize
;
3086 uint64_t old_class_space
, new_class_space
, old_ms_count
, new_ms_count
;
3088 mutex_enter(&ztest_vdev_lock
);
3089 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3091 top
= ztest_random_vdev_top(spa
, B_TRUE
);
3093 tvd
= spa
->spa_root_vdev
->vdev_child
[top
];
3096 old_ms_count
= tvd
->vdev_ms_count
;
3097 old_class_space
= metaslab_class_get_space(mc
);
3100 * Determine the size of the first leaf vdev associated with
3101 * our top-level device.
3103 vd
= vdev_walk_tree(tvd
, NULL
, NULL
);
3104 ASSERT3P(vd
, !=, NULL
);
3105 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
3107 psize
= vd
->vdev_psize
;
3110 * We only try to expand the vdev if it's healthy, less than 4x its
3111 * original size, and it has a valid psize.
3113 if (tvd
->vdev_state
!= VDEV_STATE_HEALTHY
||
3114 psize
== 0 || psize
>= 4 * ztest_opts
.zo_vdev_size
) {
3115 spa_config_exit(spa
, SCL_STATE
, spa
);
3116 mutex_exit(&ztest_vdev_lock
);
3120 newsize
= psize
+ psize
/ 8;
3121 ASSERT3U(newsize
, >, psize
);
3123 if (ztest_opts
.zo_verbose
>= 6) {
3124 (void) printf("Expanding LUN %s from %lu to %lu\n",
3125 vd
->vdev_path
, (ulong_t
)psize
, (ulong_t
)newsize
);
3129 * Growing the vdev is a two step process:
3130 * 1). expand the physical size (i.e. relabel)
3131 * 2). online the vdev to create the new metaslabs
3133 if (vdev_walk_tree(tvd
, grow_vdev
, &newsize
) != NULL
||
3134 vdev_walk_tree(tvd
, online_vdev
, NULL
) != NULL
||
3135 tvd
->vdev_state
!= VDEV_STATE_HEALTHY
) {
3136 if (ztest_opts
.zo_verbose
>= 5) {
3137 (void) printf("Could not expand LUN because "
3138 "the vdev configuration changed.\n");
3140 spa_config_exit(spa
, SCL_STATE
, spa
);
3141 mutex_exit(&ztest_vdev_lock
);
3145 spa_config_exit(spa
, SCL_STATE
, spa
);
3148 * Expanding the LUN will update the config asynchronously,
3149 * thus we must wait for the async thread to complete any
3150 * pending tasks before proceeding.
3154 mutex_enter(&spa
->spa_async_lock
);
3155 done
= (spa
->spa_async_thread
== NULL
&& !spa
->spa_async_tasks
);
3156 mutex_exit(&spa
->spa_async_lock
);
3159 txg_wait_synced(spa_get_dsl(spa
), 0);
3160 (void) poll(NULL
, 0, 100);
3163 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3165 tvd
= spa
->spa_root_vdev
->vdev_child
[top
];
3166 new_ms_count
= tvd
->vdev_ms_count
;
3167 new_class_space
= metaslab_class_get_space(mc
);
3169 if (tvd
->vdev_mg
!= mg
|| mg
->mg_class
!= mc
) {
3170 if (ztest_opts
.zo_verbose
>= 5) {
3171 (void) printf("Could not verify LUN expansion due to "
3172 "intervening vdev offline or remove.\n");
3174 spa_config_exit(spa
, SCL_STATE
, spa
);
3175 mutex_exit(&ztest_vdev_lock
);
3180 * Make sure we were able to grow the vdev.
3182 if (new_ms_count
<= old_ms_count
)
3183 fatal(0, "LUN expansion failed: ms_count %llu <= %llu\n",
3184 old_ms_count
, new_ms_count
);
3187 * Make sure we were able to grow the pool.
3189 if (new_class_space
<= old_class_space
)
3190 fatal(0, "LUN expansion failed: class_space %llu <= %llu\n",
3191 old_class_space
, new_class_space
);
3193 if (ztest_opts
.zo_verbose
>= 5) {
3194 char oldnumbuf
[6], newnumbuf
[6];
3196 nicenum(old_class_space
, oldnumbuf
);
3197 nicenum(new_class_space
, newnumbuf
);
3198 (void) printf("%s grew from %s to %s\n",
3199 spa
->spa_name
, oldnumbuf
, newnumbuf
);
3202 spa_config_exit(spa
, SCL_STATE
, spa
);
3203 mutex_exit(&ztest_vdev_lock
);
3207 * Verify that dmu_objset_{create,destroy,open,close} work as expected.
3211 ztest_objset_create_cb(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
)
3214 * Create the objects common to all ztest datasets.
3216 VERIFY(zap_create_claim(os
, ZTEST_DIROBJ
,
3217 DMU_OT_ZAP_OTHER
, DMU_OT_NONE
, 0, tx
) == 0);
3221 ztest_dataset_create(char *dsname
)
3223 uint64_t zilset
= ztest_random(100);
3224 int err
= dmu_objset_create(dsname
, DMU_OST_OTHER
, 0,
3225 ztest_objset_create_cb
, NULL
);
3227 if (err
|| zilset
< 80)
3230 if (ztest_opts
.zo_verbose
>= 5)
3231 (void) printf("Setting dataset %s to sync always\n", dsname
);
3232 return (ztest_dsl_prop_set_uint64(dsname
, ZFS_PROP_SYNC
,
3233 ZFS_SYNC_ALWAYS
, B_FALSE
));
3238 ztest_objset_destroy_cb(const char *name
, void *arg
)
3241 dmu_object_info_t doi
;
3245 * Verify that the dataset contains a directory object.
3247 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_TRUE
, FTAG
, &os
));
3248 error
= dmu_object_info(os
, ZTEST_DIROBJ
, &doi
);
3249 if (error
!= ENOENT
) {
3250 /* We could have crashed in the middle of destroying it */
3252 ASSERT3U(doi
.doi_type
, ==, DMU_OT_ZAP_OTHER
);
3253 ASSERT3S(doi
.doi_physical_blocks_512
, >=, 0);
3255 dmu_objset_disown(os
, FTAG
);
3258 * Destroy the dataset.
3260 if (strchr(name
, '@') != NULL
) {
3261 VERIFY0(dsl_destroy_snapshot(name
, B_FALSE
));
3263 VERIFY0(dsl_destroy_head(name
));
3269 ztest_snapshot_create(char *osname
, uint64_t id
)
3271 char snapname
[MAXNAMELEN
];
3274 (void) snprintf(snapname
, sizeof (snapname
), "%llu", (u_longlong_t
)id
);
3276 error
= dmu_objset_snapshot_one(osname
, snapname
);
3277 if (error
== ENOSPC
) {
3278 ztest_record_enospc(FTAG
);
3281 if (error
!= 0 && error
!= EEXIST
) {
3282 fatal(0, "ztest_snapshot_create(%s@%s) = %d", osname
,
3289 ztest_snapshot_destroy(char *osname
, uint64_t id
)
3291 char snapname
[MAXNAMELEN
];
3294 (void) snprintf(snapname
, MAXNAMELEN
, "%s@%llu", osname
,
3297 error
= dsl_destroy_snapshot(snapname
, B_FALSE
);
3298 if (error
!= 0 && error
!= ENOENT
)
3299 fatal(0, "ztest_snapshot_destroy(%s) = %d", snapname
, error
);
3305 ztest_dmu_objset_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
3315 zdtmp
= umem_alloc(sizeof (ztest_ds_t
), UMEM_NOFAIL
);
3316 name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3318 (void) rw_rdlock(&ztest_name_lock
);
3320 (void) snprintf(name
, MAXNAMELEN
, "%s/temp_%llu",
3321 ztest_opts
.zo_pool
, (u_longlong_t
)id
);
3324 * If this dataset exists from a previous run, process its replay log
3325 * half of the time. If we don't replay it, then dsl_destroy_head()
3326 * (invoked from ztest_objset_destroy_cb()) should just throw it away.
3328 if (ztest_random(2) == 0 &&
3329 dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os
) == 0) {
3330 ztest_zd_init(zdtmp
, NULL
, os
);
3331 zil_replay(os
, zdtmp
, ztest_replay_vector
);
3332 ztest_zd_fini(zdtmp
);
3333 dmu_objset_disown(os
, FTAG
);
3337 * There may be an old instance of the dataset we're about to
3338 * create lying around from a previous run. If so, destroy it
3339 * and all of its snapshots.
3341 (void) dmu_objset_find(name
, ztest_objset_destroy_cb
, NULL
,
3342 DS_FIND_CHILDREN
| DS_FIND_SNAPSHOTS
);
3345 * Verify that the destroyed dataset is no longer in the namespace.
3347 VERIFY3U(ENOENT
, ==, dmu_objset_own(name
, DMU_OST_OTHER
, B_TRUE
,
3351 * Verify that we can create a new dataset.
3353 error
= ztest_dataset_create(name
);
3355 if (error
== ENOSPC
) {
3356 ztest_record_enospc(FTAG
);
3359 fatal(0, "dmu_objset_create(%s) = %d", name
, error
);
3362 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os
));
3364 ztest_zd_init(zdtmp
, NULL
, os
);
3367 * Open the intent log for it.
3369 zilog
= zil_open(os
, ztest_get_data
);
3372 * Put some objects in there, do a little I/O to them,
3373 * and randomly take a couple of snapshots along the way.
3375 iters
= ztest_random(5);
3376 for (i
= 0; i
< iters
; i
++) {
3377 ztest_dmu_object_alloc_free(zdtmp
, id
);
3378 if (ztest_random(iters
) == 0)
3379 (void) ztest_snapshot_create(name
, i
);
3383 * Verify that we cannot create an existing dataset.
3385 VERIFY3U(EEXIST
, ==,
3386 dmu_objset_create(name
, DMU_OST_OTHER
, 0, NULL
, NULL
));
3389 * Verify that we can hold an objset that is also owned.
3391 VERIFY3U(0, ==, dmu_objset_hold(name
, FTAG
, &os2
));
3392 dmu_objset_rele(os2
, FTAG
);
3395 * Verify that we cannot own an objset that is already owned.
3398 dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os2
));
3401 dmu_objset_disown(os
, FTAG
);
3402 ztest_zd_fini(zdtmp
);
3404 (void) rw_unlock(&ztest_name_lock
);
3406 umem_free(name
, MAXNAMELEN
);
3407 umem_free(zdtmp
, sizeof (ztest_ds_t
));
3411 * Verify that dmu_snapshot_{create,destroy,open,close} work as expected.
3414 ztest_dmu_snapshot_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
3416 (void) rw_rdlock(&ztest_name_lock
);
3417 (void) ztest_snapshot_destroy(zd
->zd_name
, id
);
3418 (void) ztest_snapshot_create(zd
->zd_name
, id
);
3419 (void) rw_unlock(&ztest_name_lock
);
3423 * Cleanup non-standard snapshots and clones.
3426 ztest_dsl_dataset_cleanup(char *osname
, uint64_t id
)
3435 snap1name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3436 clone1name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3437 snap2name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3438 clone2name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3439 snap3name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3441 (void) snprintf(snap1name
, MAXNAMELEN
, "%s@s1_%llu",
3442 osname
, (u_longlong_t
)id
);
3443 (void) snprintf(clone1name
, MAXNAMELEN
, "%s/c1_%llu",
3444 osname
, (u_longlong_t
)id
);
3445 (void) snprintf(snap2name
, MAXNAMELEN
, "%s@s2_%llu",
3446 clone1name
, (u_longlong_t
)id
);
3447 (void) snprintf(clone2name
, MAXNAMELEN
, "%s/c2_%llu",
3448 osname
, (u_longlong_t
)id
);
3449 (void) snprintf(snap3name
, MAXNAMELEN
, "%s@s3_%llu",
3450 clone1name
, (u_longlong_t
)id
);
3452 error
= dsl_destroy_head(clone2name
);
3453 if (error
&& error
!= ENOENT
)
3454 fatal(0, "dsl_destroy_head(%s) = %d", clone2name
, error
);
3455 error
= dsl_destroy_snapshot(snap3name
, B_FALSE
);
3456 if (error
&& error
!= ENOENT
)
3457 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap3name
, error
);
3458 error
= dsl_destroy_snapshot(snap2name
, B_FALSE
);
3459 if (error
&& error
!= ENOENT
)
3460 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap2name
, error
);
3461 error
= dsl_destroy_head(clone1name
);
3462 if (error
&& error
!= ENOENT
)
3463 fatal(0, "dsl_destroy_head(%s) = %d", clone1name
, error
);
3464 error
= dsl_destroy_snapshot(snap1name
, B_FALSE
);
3465 if (error
&& error
!= ENOENT
)
3466 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap1name
, error
);
3468 umem_free(snap1name
, MAXNAMELEN
);
3469 umem_free(clone1name
, MAXNAMELEN
);
3470 umem_free(snap2name
, MAXNAMELEN
);
3471 umem_free(clone2name
, MAXNAMELEN
);
3472 umem_free(snap3name
, MAXNAMELEN
);
3476 * Verify dsl_dataset_promote handles EBUSY
3479 ztest_dsl_dataset_promote_busy(ztest_ds_t
*zd
, uint64_t id
)
3487 char *osname
= zd
->zd_name
;
3490 snap1name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3491 clone1name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3492 snap2name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3493 clone2name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3494 snap3name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3496 (void) rw_rdlock(&ztest_name_lock
);
3498 ztest_dsl_dataset_cleanup(osname
, id
);
3500 (void) snprintf(snap1name
, MAXNAMELEN
, "%s@s1_%llu",
3501 osname
, (u_longlong_t
)id
);
3502 (void) snprintf(clone1name
, MAXNAMELEN
, "%s/c1_%llu",
3503 osname
, (u_longlong_t
)id
);
3504 (void) snprintf(snap2name
, MAXNAMELEN
, "%s@s2_%llu",
3505 clone1name
, (u_longlong_t
)id
);
3506 (void) snprintf(clone2name
, MAXNAMELEN
, "%s/c2_%llu",
3507 osname
, (u_longlong_t
)id
);
3508 (void) snprintf(snap3name
, MAXNAMELEN
, "%s@s3_%llu",
3509 clone1name
, (u_longlong_t
)id
);
3511 error
= dmu_objset_snapshot_one(osname
, strchr(snap1name
, '@') + 1);
3512 if (error
&& error
!= EEXIST
) {
3513 if (error
== ENOSPC
) {
3514 ztest_record_enospc(FTAG
);
3517 fatal(0, "dmu_take_snapshot(%s) = %d", snap1name
, error
);
3520 error
= dmu_objset_clone(clone1name
, snap1name
);
3522 if (error
== ENOSPC
) {
3523 ztest_record_enospc(FTAG
);
3526 fatal(0, "dmu_objset_create(%s) = %d", clone1name
, error
);
3529 error
= dmu_objset_snapshot_one(clone1name
, strchr(snap2name
, '@') + 1);
3530 if (error
&& error
!= EEXIST
) {
3531 if (error
== ENOSPC
) {
3532 ztest_record_enospc(FTAG
);
3535 fatal(0, "dmu_open_snapshot(%s) = %d", snap2name
, error
);
3538 error
= dmu_objset_snapshot_one(clone1name
, strchr(snap3name
, '@') + 1);
3539 if (error
&& error
!= EEXIST
) {
3540 if (error
== ENOSPC
) {
3541 ztest_record_enospc(FTAG
);
3544 fatal(0, "dmu_open_snapshot(%s) = %d", snap3name
, error
);
3547 error
= dmu_objset_clone(clone2name
, snap3name
);
3549 if (error
== ENOSPC
) {
3550 ztest_record_enospc(FTAG
);
3553 fatal(0, "dmu_objset_create(%s) = %d", clone2name
, error
);
3556 error
= dmu_objset_own(snap2name
, DMU_OST_ANY
, B_TRUE
, FTAG
, &os
);
3558 fatal(0, "dmu_objset_own(%s) = %d", snap2name
, error
);
3559 error
= dsl_dataset_promote(clone2name
, NULL
);
3560 if (error
== ENOSPC
) {
3561 dmu_objset_disown(os
, FTAG
);
3562 ztest_record_enospc(FTAG
);
3566 fatal(0, "dsl_dataset_promote(%s), %d, not EBUSY", clone2name
,
3568 dmu_objset_disown(os
, FTAG
);
3571 ztest_dsl_dataset_cleanup(osname
, id
);
3573 (void) rw_unlock(&ztest_name_lock
);
3575 umem_free(snap1name
, MAXNAMELEN
);
3576 umem_free(clone1name
, MAXNAMELEN
);
3577 umem_free(snap2name
, MAXNAMELEN
);
3578 umem_free(clone2name
, MAXNAMELEN
);
3579 umem_free(snap3name
, MAXNAMELEN
);
3582 #undef OD_ARRAY_SIZE
3583 #define OD_ARRAY_SIZE 4
3586 * Verify that dmu_object_{alloc,free} work as expected.
3589 ztest_dmu_object_alloc_free(ztest_ds_t
*zd
, uint64_t id
)
3596 size
= sizeof (ztest_od_t
) * OD_ARRAY_SIZE
;
3597 od
= umem_alloc(size
, UMEM_NOFAIL
);
3598 batchsize
= OD_ARRAY_SIZE
;
3600 for (b
= 0; b
< batchsize
; b
++)
3601 ztest_od_init(od
+ b
, id
, FTAG
, b
, DMU_OT_UINT64_OTHER
, 0, 0);
3604 * Destroy the previous batch of objects, create a new batch,
3605 * and do some I/O on the new objects.
3607 if (ztest_object_init(zd
, od
, size
, B_TRUE
) != 0)
3610 while (ztest_random(4 * batchsize
) != 0)
3611 ztest_io(zd
, od
[ztest_random(batchsize
)].od_object
,
3612 ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
3614 umem_free(od
, size
);
3617 #undef OD_ARRAY_SIZE
3618 #define OD_ARRAY_SIZE 2
3621 * Verify that dmu_{read,write} work as expected.
3624 ztest_dmu_read_write(ztest_ds_t
*zd
, uint64_t id
)
3629 objset_t
*os
= zd
->zd_os
;
3630 size
= sizeof (ztest_od_t
) * OD_ARRAY_SIZE
;
3631 od
= umem_alloc(size
, UMEM_NOFAIL
);
3633 int i
, freeit
, error
;
3635 bufwad_t
*packbuf
, *bigbuf
, *pack
, *bigH
, *bigT
;
3636 uint64_t packobj
, packoff
, packsize
, bigobj
, bigoff
, bigsize
;
3637 uint64_t chunksize
= (1000 + ztest_random(1000)) * sizeof (uint64_t);
3638 uint64_t regions
= 997;
3639 uint64_t stride
= 123456789ULL;
3640 uint64_t width
= 40;
3641 int free_percent
= 5;
3644 * This test uses two objects, packobj and bigobj, that are always
3645 * updated together (i.e. in the same tx) so that their contents are
3646 * in sync and can be compared. Their contents relate to each other
3647 * in a simple way: packobj is a dense array of 'bufwad' structures,
3648 * while bigobj is a sparse array of the same bufwads. Specifically,
3649 * for any index n, there are three bufwads that should be identical:
3651 * packobj, at offset n * sizeof (bufwad_t)
3652 * bigobj, at the head of the nth chunk
3653 * bigobj, at the tail of the nth chunk
3655 * The chunk size is arbitrary. It doesn't have to be a power of two,
3656 * and it doesn't have any relation to the object blocksize.
3657 * The only requirement is that it can hold at least two bufwads.
3659 * Normally, we write the bufwad to each of these locations.
3660 * However, free_percent of the time we instead write zeroes to
3661 * packobj and perform a dmu_free_range() on bigobj. By comparing
3662 * bigobj to packobj, we can verify that the DMU is correctly
3663 * tracking which parts of an object are allocated and free,
3664 * and that the contents of the allocated blocks are correct.
3668 * Read the directory info. If it's the first time, set things up.
3670 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, chunksize
);
3671 ztest_od_init(od
+ 1, id
, FTAG
, 1, DMU_OT_UINT64_OTHER
, 0, chunksize
);
3673 if (ztest_object_init(zd
, od
, size
, B_FALSE
) != 0) {
3674 umem_free(od
, size
);
3678 bigobj
= od
[0].od_object
;
3679 packobj
= od
[1].od_object
;
3680 chunksize
= od
[0].od_gen
;
3681 ASSERT(chunksize
== od
[1].od_gen
);
3684 * Prefetch a random chunk of the big object.
3685 * Our aim here is to get some async reads in flight
3686 * for blocks that we may free below; the DMU should
3687 * handle this race correctly.
3689 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
3690 s
= 1 + ztest_random(2 * width
- 1);
3691 dmu_prefetch(os
, bigobj
, n
* chunksize
, s
* chunksize
);
3694 * Pick a random index and compute the offsets into packobj and bigobj.
3696 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
3697 s
= 1 + ztest_random(width
- 1);
3699 packoff
= n
* sizeof (bufwad_t
);
3700 packsize
= s
* sizeof (bufwad_t
);
3702 bigoff
= n
* chunksize
;
3703 bigsize
= s
* chunksize
;
3705 packbuf
= umem_alloc(packsize
, UMEM_NOFAIL
);
3706 bigbuf
= umem_alloc(bigsize
, UMEM_NOFAIL
);
3709 * free_percent of the time, free a range of bigobj rather than
3712 freeit
= (ztest_random(100) < free_percent
);
3715 * Read the current contents of our objects.
3717 error
= dmu_read(os
, packobj
, packoff
, packsize
, packbuf
,
3720 error
= dmu_read(os
, bigobj
, bigoff
, bigsize
, bigbuf
,
3725 * Get a tx for the mods to both packobj and bigobj.
3727 tx
= dmu_tx_create(os
);
3729 dmu_tx_hold_write(tx
, packobj
, packoff
, packsize
);
3732 dmu_tx_hold_free(tx
, bigobj
, bigoff
, bigsize
);
3734 dmu_tx_hold_write(tx
, bigobj
, bigoff
, bigsize
);
3736 /* This accounts for setting the checksum/compression. */
3737 dmu_tx_hold_bonus(tx
, bigobj
);
3739 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
3741 umem_free(packbuf
, packsize
);
3742 umem_free(bigbuf
, bigsize
);
3743 umem_free(od
, size
);
3747 enum zio_checksum cksum
;
3749 cksum
= (enum zio_checksum
)
3750 ztest_random_dsl_prop(ZFS_PROP_CHECKSUM
);
3751 } while (cksum
>= ZIO_CHECKSUM_LEGACY_FUNCTIONS
);
3752 dmu_object_set_checksum(os
, bigobj
, cksum
, tx
);
3754 enum zio_compress comp
;
3756 comp
= (enum zio_compress
)
3757 ztest_random_dsl_prop(ZFS_PROP_COMPRESSION
);
3758 } while (comp
>= ZIO_COMPRESS_LEGACY_FUNCTIONS
);
3759 dmu_object_set_compress(os
, bigobj
, comp
, tx
);
3762 * For each index from n to n + s, verify that the existing bufwad
3763 * in packobj matches the bufwads at the head and tail of the
3764 * corresponding chunk in bigobj. Then update all three bufwads
3765 * with the new values we want to write out.
3767 for (i
= 0; i
< s
; i
++) {
3769 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
3771 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* chunksize
);
3773 bigT
= (bufwad_t
*)((char *)bigH
+ chunksize
) - 1;
3775 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
3776 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
3778 if (pack
->bw_txg
> txg
)
3779 fatal(0, "future leak: got %llx, open txg is %llx",
3782 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
3783 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
3784 pack
->bw_index
, n
, i
);
3786 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
3787 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
3789 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
3790 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
3793 bzero(pack
, sizeof (bufwad_t
));
3795 pack
->bw_index
= n
+ i
;
3797 pack
->bw_data
= 1 + ztest_random(-2ULL);
3804 * We've verified all the old bufwads, and made new ones.
3805 * Now write them out.
3807 dmu_write(os
, packobj
, packoff
, packsize
, packbuf
, tx
);
3810 if (ztest_opts
.zo_verbose
>= 7) {
3811 (void) printf("freeing offset %llx size %llx"
3813 (u_longlong_t
)bigoff
,
3814 (u_longlong_t
)bigsize
,
3817 VERIFY(0 == dmu_free_range(os
, bigobj
, bigoff
, bigsize
, tx
));
3819 if (ztest_opts
.zo_verbose
>= 7) {
3820 (void) printf("writing offset %llx size %llx"
3822 (u_longlong_t
)bigoff
,
3823 (u_longlong_t
)bigsize
,
3826 dmu_write(os
, bigobj
, bigoff
, bigsize
, bigbuf
, tx
);
3832 * Sanity check the stuff we just wrote.
3835 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
3836 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
3838 VERIFY(0 == dmu_read(os
, packobj
, packoff
,
3839 packsize
, packcheck
, DMU_READ_PREFETCH
));
3840 VERIFY(0 == dmu_read(os
, bigobj
, bigoff
,
3841 bigsize
, bigcheck
, DMU_READ_PREFETCH
));
3843 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
3844 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
3846 umem_free(packcheck
, packsize
);
3847 umem_free(bigcheck
, bigsize
);
3850 umem_free(packbuf
, packsize
);
3851 umem_free(bigbuf
, bigsize
);
3852 umem_free(od
, size
);
3856 compare_and_update_pbbufs(uint64_t s
, bufwad_t
*packbuf
, bufwad_t
*bigbuf
,
3857 uint64_t bigsize
, uint64_t n
, uint64_t chunksize
, uint64_t txg
)
3865 * For each index from n to n + s, verify that the existing bufwad
3866 * in packobj matches the bufwads at the head and tail of the
3867 * corresponding chunk in bigobj. Then update all three bufwads
3868 * with the new values we want to write out.
3870 for (i
= 0; i
< s
; i
++) {
3872 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
3874 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* chunksize
);
3876 bigT
= (bufwad_t
*)((char *)bigH
+ chunksize
) - 1;
3878 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
3879 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
3881 if (pack
->bw_txg
> txg
)
3882 fatal(0, "future leak: got %llx, open txg is %llx",
3885 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
3886 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
3887 pack
->bw_index
, n
, i
);
3889 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
3890 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
3892 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
3893 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
3895 pack
->bw_index
= n
+ i
;
3897 pack
->bw_data
= 1 + ztest_random(-2ULL);
3904 #undef OD_ARRAY_SIZE
3905 #define OD_ARRAY_SIZE 2
3908 ztest_dmu_read_write_zcopy(ztest_ds_t
*zd
, uint64_t id
)
3910 objset_t
*os
= zd
->zd_os
;
3917 bufwad_t
*packbuf
, *bigbuf
;
3918 uint64_t packobj
, packoff
, packsize
, bigobj
, bigoff
, bigsize
;
3919 uint64_t blocksize
= ztest_random_blocksize();
3920 uint64_t chunksize
= blocksize
;
3921 uint64_t regions
= 997;
3922 uint64_t stride
= 123456789ULL;
3924 dmu_buf_t
*bonus_db
;
3925 arc_buf_t
**bigbuf_arcbufs
;
3926 dmu_object_info_t doi
;
3928 size
= sizeof (ztest_od_t
) * OD_ARRAY_SIZE
;
3929 od
= umem_alloc(size
, UMEM_NOFAIL
);
3932 * This test uses two objects, packobj and bigobj, that are always
3933 * updated together (i.e. in the same tx) so that their contents are
3934 * in sync and can be compared. Their contents relate to each other
3935 * in a simple way: packobj is a dense array of 'bufwad' structures,
3936 * while bigobj is a sparse array of the same bufwads. Specifically,
3937 * for any index n, there are three bufwads that should be identical:
3939 * packobj, at offset n * sizeof (bufwad_t)
3940 * bigobj, at the head of the nth chunk
3941 * bigobj, at the tail of the nth chunk
3943 * The chunk size is set equal to bigobj block size so that
3944 * dmu_assign_arcbuf() can be tested for object updates.
3948 * Read the directory info. If it's the first time, set things up.
3950 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0);
3951 ztest_od_init(od
+ 1, id
, FTAG
, 1, DMU_OT_UINT64_OTHER
, 0, chunksize
);
3954 if (ztest_object_init(zd
, od
, size
, B_FALSE
) != 0) {
3955 umem_free(od
, size
);
3959 bigobj
= od
[0].od_object
;
3960 packobj
= od
[1].od_object
;
3961 blocksize
= od
[0].od_blocksize
;
3962 chunksize
= blocksize
;
3963 ASSERT(chunksize
== od
[1].od_gen
);
3965 VERIFY(dmu_object_info(os
, bigobj
, &doi
) == 0);
3966 VERIFY(ISP2(doi
.doi_data_block_size
));
3967 VERIFY(chunksize
== doi
.doi_data_block_size
);
3968 VERIFY(chunksize
>= 2 * sizeof (bufwad_t
));
3971 * Pick a random index and compute the offsets into packobj and bigobj.
3973 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
3974 s
= 1 + ztest_random(width
- 1);
3976 packoff
= n
* sizeof (bufwad_t
);
3977 packsize
= s
* sizeof (bufwad_t
);
3979 bigoff
= n
* chunksize
;
3980 bigsize
= s
* chunksize
;
3982 packbuf
= umem_zalloc(packsize
, UMEM_NOFAIL
);
3983 bigbuf
= umem_zalloc(bigsize
, UMEM_NOFAIL
);
3985 VERIFY3U(0, ==, dmu_bonus_hold(os
, bigobj
, FTAG
, &bonus_db
));
3987 bigbuf_arcbufs
= umem_zalloc(2 * s
* sizeof (arc_buf_t
*), UMEM_NOFAIL
);
3990 * Iteration 0 test zcopy for DB_UNCACHED dbufs.
3991 * Iteration 1 test zcopy to already referenced dbufs.
3992 * Iteration 2 test zcopy to dirty dbuf in the same txg.
3993 * Iteration 3 test zcopy to dbuf dirty in previous txg.
3994 * Iteration 4 test zcopy when dbuf is no longer dirty.
3995 * Iteration 5 test zcopy when it can't be done.
3996 * Iteration 6 one more zcopy write.
3998 for (i
= 0; i
< 7; i
++) {
4003 * In iteration 5 (i == 5) use arcbufs
4004 * that don't match bigobj blksz to test
4005 * dmu_assign_arcbuf() when it can't directly
4006 * assign an arcbuf to a dbuf.
4008 for (j
= 0; j
< s
; j
++) {
4011 dmu_request_arcbuf(bonus_db
, chunksize
);
4013 bigbuf_arcbufs
[2 * j
] =
4014 dmu_request_arcbuf(bonus_db
, chunksize
/ 2);
4015 bigbuf_arcbufs
[2 * j
+ 1] =
4016 dmu_request_arcbuf(bonus_db
, chunksize
/ 2);
4021 * Get a tx for the mods to both packobj and bigobj.
4023 tx
= dmu_tx_create(os
);
4025 dmu_tx_hold_write(tx
, packobj
, packoff
, packsize
);
4026 dmu_tx_hold_write(tx
, bigobj
, bigoff
, bigsize
);
4028 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4030 umem_free(packbuf
, packsize
);
4031 umem_free(bigbuf
, bigsize
);
4032 for (j
= 0; j
< s
; j
++) {
4034 dmu_return_arcbuf(bigbuf_arcbufs
[j
]);
4037 bigbuf_arcbufs
[2 * j
]);
4039 bigbuf_arcbufs
[2 * j
+ 1]);
4042 umem_free(bigbuf_arcbufs
, 2 * s
* sizeof (arc_buf_t
*));
4043 umem_free(od
, size
);
4044 dmu_buf_rele(bonus_db
, FTAG
);
4049 * 50% of the time don't read objects in the 1st iteration to
4050 * test dmu_assign_arcbuf() for the case when there're no
4051 * existing dbufs for the specified offsets.
4053 if (i
!= 0 || ztest_random(2) != 0) {
4054 error
= dmu_read(os
, packobj
, packoff
,
4055 packsize
, packbuf
, DMU_READ_PREFETCH
);
4057 error
= dmu_read(os
, bigobj
, bigoff
, bigsize
,
4058 bigbuf
, DMU_READ_PREFETCH
);
4061 compare_and_update_pbbufs(s
, packbuf
, bigbuf
, bigsize
,
4065 * We've verified all the old bufwads, and made new ones.
4066 * Now write them out.
4068 dmu_write(os
, packobj
, packoff
, packsize
, packbuf
, tx
);
4069 if (ztest_opts
.zo_verbose
>= 7) {
4070 (void) printf("writing offset %llx size %llx"
4072 (u_longlong_t
)bigoff
,
4073 (u_longlong_t
)bigsize
,
4076 for (off
= bigoff
, j
= 0; j
< s
; j
++, off
+= chunksize
) {
4079 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
),
4080 bigbuf_arcbufs
[j
]->b_data
, chunksize
);
4082 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
),
4083 bigbuf_arcbufs
[2 * j
]->b_data
,
4085 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
) +
4087 bigbuf_arcbufs
[2 * j
+ 1]->b_data
,
4092 VERIFY(dmu_buf_hold(os
, bigobj
, off
,
4093 FTAG
, &dbt
, DMU_READ_NO_PREFETCH
) == 0);
4096 dmu_assign_arcbuf(bonus_db
, off
,
4097 bigbuf_arcbufs
[j
], tx
);
4099 dmu_assign_arcbuf(bonus_db
, off
,
4100 bigbuf_arcbufs
[2 * j
], tx
);
4101 dmu_assign_arcbuf(bonus_db
,
4102 off
+ chunksize
/ 2,
4103 bigbuf_arcbufs
[2 * j
+ 1], tx
);
4106 dmu_buf_rele(dbt
, FTAG
);
4112 * Sanity check the stuff we just wrote.
4115 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
4116 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
4118 VERIFY(0 == dmu_read(os
, packobj
, packoff
,
4119 packsize
, packcheck
, DMU_READ_PREFETCH
));
4120 VERIFY(0 == dmu_read(os
, bigobj
, bigoff
,
4121 bigsize
, bigcheck
, DMU_READ_PREFETCH
));
4123 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
4124 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
4126 umem_free(packcheck
, packsize
);
4127 umem_free(bigcheck
, bigsize
);
4130 txg_wait_open(dmu_objset_pool(os
), 0);
4131 } else if (i
== 3) {
4132 txg_wait_synced(dmu_objset_pool(os
), 0);
4136 dmu_buf_rele(bonus_db
, FTAG
);
4137 umem_free(packbuf
, packsize
);
4138 umem_free(bigbuf
, bigsize
);
4139 umem_free(bigbuf_arcbufs
, 2 * s
* sizeof (arc_buf_t
*));
4140 umem_free(od
, size
);
4145 ztest_dmu_write_parallel(ztest_ds_t
*zd
, uint64_t id
)
4149 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4150 uint64_t offset
= (1ULL << (ztest_random(20) + 43)) +
4151 (ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
4154 * Have multiple threads write to large offsets in an object
4155 * to verify that parallel writes to an object -- even to the
4156 * same blocks within the object -- doesn't cause any trouble.
4158 ztest_od_init(od
, ID_PARALLEL
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0);
4160 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0)
4163 while (ztest_random(10) != 0)
4164 ztest_io(zd
, od
->od_object
, offset
);
4166 umem_free(od
, sizeof (ztest_od_t
));
4170 ztest_dmu_prealloc(ztest_ds_t
*zd
, uint64_t id
)
4173 uint64_t offset
= (1ULL << (ztest_random(4) + SPA_MAXBLOCKSHIFT
)) +
4174 (ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
4175 uint64_t count
= ztest_random(20) + 1;
4176 uint64_t blocksize
= ztest_random_blocksize();
4179 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4181 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0);
4183 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
),
4184 !ztest_random(2)) != 0) {
4185 umem_free(od
, sizeof (ztest_od_t
));
4189 if (ztest_truncate(zd
, od
->od_object
, offset
, count
* blocksize
) != 0) {
4190 umem_free(od
, sizeof (ztest_od_t
));
4194 ztest_prealloc(zd
, od
->od_object
, offset
, count
* blocksize
);
4196 data
= umem_zalloc(blocksize
, UMEM_NOFAIL
);
4198 while (ztest_random(count
) != 0) {
4199 uint64_t randoff
= offset
+ (ztest_random(count
) * blocksize
);
4200 if (ztest_write(zd
, od
->od_object
, randoff
, blocksize
,
4203 while (ztest_random(4) != 0)
4204 ztest_io(zd
, od
->od_object
, randoff
);
4207 umem_free(data
, blocksize
);
4208 umem_free(od
, sizeof (ztest_od_t
));
4212 * Verify that zap_{create,destroy,add,remove,update} work as expected.
4214 #define ZTEST_ZAP_MIN_INTS 1
4215 #define ZTEST_ZAP_MAX_INTS 4
4216 #define ZTEST_ZAP_MAX_PROPS 1000
4219 ztest_zap(ztest_ds_t
*zd
, uint64_t id
)
4221 objset_t
*os
= zd
->zd_os
;
4224 uint64_t txg
, last_txg
;
4225 uint64_t value
[ZTEST_ZAP_MAX_INTS
];
4226 uint64_t zl_ints
, zl_intsize
, prop
;
4229 char propname
[100], txgname
[100];
4231 char *hc
[2] = { "s.acl.h", ".s.open.h.hyLZlg" };
4233 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4234 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_ZAP_OTHER
, 0, 0);
4236 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
),
4237 !ztest_random(2)) != 0)
4240 object
= od
->od_object
;
4243 * Generate a known hash collision, and verify that
4244 * we can lookup and remove both entries.
4246 tx
= dmu_tx_create(os
);
4247 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4248 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4251 for (i
= 0; i
< 2; i
++) {
4253 VERIFY3U(0, ==, zap_add(os
, object
, hc
[i
], sizeof (uint64_t),
4256 for (i
= 0; i
< 2; i
++) {
4257 VERIFY3U(EEXIST
, ==, zap_add(os
, object
, hc
[i
],
4258 sizeof (uint64_t), 1, &value
[i
], tx
));
4260 zap_length(os
, object
, hc
[i
], &zl_intsize
, &zl_ints
));
4261 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4262 ASSERT3U(zl_ints
, ==, 1);
4264 for (i
= 0; i
< 2; i
++) {
4265 VERIFY3U(0, ==, zap_remove(os
, object
, hc
[i
], tx
));
4270 * Generate a buch of random entries.
4272 ints
= MAX(ZTEST_ZAP_MIN_INTS
, object
% ZTEST_ZAP_MAX_INTS
);
4274 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
4275 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
4276 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
4277 bzero(value
, sizeof (value
));
4281 * If these zap entries already exist, validate their contents.
4283 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
4285 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4286 ASSERT3U(zl_ints
, ==, 1);
4288 VERIFY(zap_lookup(os
, object
, txgname
, zl_intsize
,
4289 zl_ints
, &last_txg
) == 0);
4291 VERIFY(zap_length(os
, object
, propname
, &zl_intsize
,
4294 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4295 ASSERT3U(zl_ints
, ==, ints
);
4297 VERIFY(zap_lookup(os
, object
, propname
, zl_intsize
,
4298 zl_ints
, value
) == 0);
4300 for (i
= 0; i
< ints
; i
++) {
4301 ASSERT3U(value
[i
], ==, last_txg
+ object
+ i
);
4304 ASSERT3U(error
, ==, ENOENT
);
4308 * Atomically update two entries in our zap object.
4309 * The first is named txg_%llu, and contains the txg
4310 * in which the property was last updated. The second
4311 * is named prop_%llu, and the nth element of its value
4312 * should be txg + object + n.
4314 tx
= dmu_tx_create(os
);
4315 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4316 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4321 fatal(0, "zap future leak: old %llu new %llu", last_txg
, txg
);
4323 for (i
= 0; i
< ints
; i
++)
4324 value
[i
] = txg
+ object
+ i
;
4326 VERIFY3U(0, ==, zap_update(os
, object
, txgname
, sizeof (uint64_t),
4328 VERIFY3U(0, ==, zap_update(os
, object
, propname
, sizeof (uint64_t),
4334 * Remove a random pair of entries.
4336 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
4337 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
4338 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
4340 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
4342 if (error
== ENOENT
)
4347 tx
= dmu_tx_create(os
);
4348 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4349 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4352 VERIFY3U(0, ==, zap_remove(os
, object
, txgname
, tx
));
4353 VERIFY3U(0, ==, zap_remove(os
, object
, propname
, tx
));
4356 umem_free(od
, sizeof (ztest_od_t
));
4360 * Testcase to test the upgrading of a microzap to fatzap.
4363 ztest_fzap(ztest_ds_t
*zd
, uint64_t id
)
4365 objset_t
*os
= zd
->zd_os
;
4367 uint64_t object
, txg
;
4370 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4371 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_ZAP_OTHER
, 0, 0);
4373 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
),
4374 !ztest_random(2)) != 0)
4376 object
= od
->od_object
;
4379 * Add entries to this ZAP and make sure it spills over
4380 * and gets upgraded to a fatzap. Also, since we are adding
4381 * 2050 entries we should see ptrtbl growth and leaf-block split.
4383 for (i
= 0; i
< 2050; i
++) {
4384 char name
[MAXNAMELEN
];
4389 (void) snprintf(name
, sizeof (name
), "fzap-%llu-%llu",
4390 (u_longlong_t
)id
, (u_longlong_t
)value
);
4392 tx
= dmu_tx_create(os
);
4393 dmu_tx_hold_zap(tx
, object
, B_TRUE
, name
);
4394 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4397 error
= zap_add(os
, object
, name
, sizeof (uint64_t), 1,
4399 ASSERT(error
== 0 || error
== EEXIST
);
4403 umem_free(od
, sizeof (ztest_od_t
));
4408 ztest_zap_parallel(ztest_ds_t
*zd
, uint64_t id
)
4410 objset_t
*os
= zd
->zd_os
;
4412 uint64_t txg
, object
, count
, wsize
, wc
, zl_wsize
, zl_wc
;
4414 int i
, namelen
, error
;
4415 int micro
= ztest_random(2);
4416 char name
[20], string_value
[20];
4419 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4420 ztest_od_init(od
, ID_PARALLEL
, FTAG
, micro
, DMU_OT_ZAP_OTHER
, 0, 0);
4422 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
4423 umem_free(od
, sizeof (ztest_od_t
));
4427 object
= od
->od_object
;
4430 * Generate a random name of the form 'xxx.....' where each
4431 * x is a random printable character and the dots are dots.
4432 * There are 94 such characters, and the name length goes from
4433 * 6 to 20, so there are 94^3 * 15 = 12,458,760 possible names.
4435 namelen
= ztest_random(sizeof (name
) - 5) + 5 + 1;
4437 for (i
= 0; i
< 3; i
++)
4438 name
[i
] = '!' + ztest_random('~' - '!' + 1);
4439 for (; i
< namelen
- 1; i
++)
4443 if ((namelen
& 1) || micro
) {
4444 wsize
= sizeof (txg
);
4450 data
= string_value
;
4454 VERIFY0(zap_count(os
, object
, &count
));
4455 ASSERT(count
!= -1ULL);
4458 * Select an operation: length, lookup, add, update, remove.
4460 i
= ztest_random(5);
4463 tx
= dmu_tx_create(os
);
4464 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4465 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4468 bcopy(name
, string_value
, namelen
);
4472 bzero(string_value
, namelen
);
4478 error
= zap_length(os
, object
, name
, &zl_wsize
, &zl_wc
);
4480 ASSERT3U(wsize
, ==, zl_wsize
);
4481 ASSERT3U(wc
, ==, zl_wc
);
4483 ASSERT3U(error
, ==, ENOENT
);
4488 error
= zap_lookup(os
, object
, name
, wsize
, wc
, data
);
4490 if (data
== string_value
&&
4491 bcmp(name
, data
, namelen
) != 0)
4492 fatal(0, "name '%s' != val '%s' len %d",
4493 name
, data
, namelen
);
4495 ASSERT3U(error
, ==, ENOENT
);
4500 error
= zap_add(os
, object
, name
, wsize
, wc
, data
, tx
);
4501 ASSERT(error
== 0 || error
== EEXIST
);
4505 VERIFY(zap_update(os
, object
, name
, wsize
, wc
, data
, tx
) == 0);
4509 error
= zap_remove(os
, object
, name
, tx
);
4510 ASSERT(error
== 0 || error
== ENOENT
);
4517 umem_free(od
, sizeof (ztest_od_t
));
4521 * Commit callback data.
4523 typedef struct ztest_cb_data
{
4524 list_node_t zcd_node
;
4526 int zcd_expected_err
;
4527 boolean_t zcd_added
;
4528 boolean_t zcd_called
;
4532 /* This is the actual commit callback function */
4534 ztest_commit_callback(void *arg
, int error
)
4536 ztest_cb_data_t
*data
= arg
;
4537 uint64_t synced_txg
;
4539 VERIFY(data
!= NULL
);
4540 VERIFY3S(data
->zcd_expected_err
, ==, error
);
4541 VERIFY(!data
->zcd_called
);
4543 synced_txg
= spa_last_synced_txg(data
->zcd_spa
);
4544 if (data
->zcd_txg
> synced_txg
)
4545 fatal(0, "commit callback of txg %" PRIu64
" called prematurely"
4546 ", last synced txg = %" PRIu64
"\n", data
->zcd_txg
,
4549 data
->zcd_called
= B_TRUE
;
4551 if (error
== ECANCELED
) {
4552 ASSERT0(data
->zcd_txg
);
4553 ASSERT(!data
->zcd_added
);
4556 * The private callback data should be destroyed here, but
4557 * since we are going to check the zcd_called field after
4558 * dmu_tx_abort(), we will destroy it there.
4563 ASSERT(data
->zcd_added
);
4564 ASSERT3U(data
->zcd_txg
, !=, 0);
4566 (void) mutex_enter(&zcl
.zcl_callbacks_lock
);
4568 /* See if this cb was called more quickly */
4569 if ((synced_txg
- data
->zcd_txg
) < zc_min_txg_delay
)
4570 zc_min_txg_delay
= synced_txg
- data
->zcd_txg
;
4572 /* Remove our callback from the list */
4573 list_remove(&zcl
.zcl_callbacks
, data
);
4575 (void) mutex_exit(&zcl
.zcl_callbacks_lock
);
4577 umem_free(data
, sizeof (ztest_cb_data_t
));
4580 /* Allocate and initialize callback data structure */
4581 static ztest_cb_data_t
*
4582 ztest_create_cb_data(objset_t
*os
, uint64_t txg
)
4584 ztest_cb_data_t
*cb_data
;
4586 cb_data
= umem_zalloc(sizeof (ztest_cb_data_t
), UMEM_NOFAIL
);
4588 cb_data
->zcd_txg
= txg
;
4589 cb_data
->zcd_spa
= dmu_objset_spa(os
);
4590 list_link_init(&cb_data
->zcd_node
);
4596 * Commit callback test.
4599 ztest_dmu_commit_callbacks(ztest_ds_t
*zd
, uint64_t id
)
4601 objset_t
*os
= zd
->zd_os
;
4604 ztest_cb_data_t
*cb_data
[3], *tmp_cb
;
4605 uint64_t old_txg
, txg
;
4608 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4609 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0);
4611 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
4612 umem_free(od
, sizeof (ztest_od_t
));
4616 tx
= dmu_tx_create(os
);
4618 cb_data
[0] = ztest_create_cb_data(os
, 0);
4619 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[0]);
4621 dmu_tx_hold_write(tx
, od
->od_object
, 0, sizeof (uint64_t));
4623 /* Every once in a while, abort the transaction on purpose */
4624 if (ztest_random(100) == 0)
4628 error
= dmu_tx_assign(tx
, TXG_NOWAIT
);
4630 txg
= error
? 0 : dmu_tx_get_txg(tx
);
4632 cb_data
[0]->zcd_txg
= txg
;
4633 cb_data
[1] = ztest_create_cb_data(os
, txg
);
4634 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[1]);
4638 * It's not a strict requirement to call the registered
4639 * callbacks from inside dmu_tx_abort(), but that's what
4640 * it's supposed to happen in the current implementation
4641 * so we will check for that.
4643 for (i
= 0; i
< 2; i
++) {
4644 cb_data
[i
]->zcd_expected_err
= ECANCELED
;
4645 VERIFY(!cb_data
[i
]->zcd_called
);
4650 for (i
= 0; i
< 2; i
++) {
4651 VERIFY(cb_data
[i
]->zcd_called
);
4652 umem_free(cb_data
[i
], sizeof (ztest_cb_data_t
));
4655 umem_free(od
, sizeof (ztest_od_t
));
4659 cb_data
[2] = ztest_create_cb_data(os
, txg
);
4660 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[2]);
4663 * Read existing data to make sure there isn't a future leak.
4665 VERIFY(0 == dmu_read(os
, od
->od_object
, 0, sizeof (uint64_t),
4666 &old_txg
, DMU_READ_PREFETCH
));
4669 fatal(0, "future leak: got %" PRIu64
", open txg is %" PRIu64
,
4672 dmu_write(os
, od
->od_object
, 0, sizeof (uint64_t), &txg
, tx
);
4674 (void) mutex_enter(&zcl
.zcl_callbacks_lock
);
4677 * Since commit callbacks don't have any ordering requirement and since
4678 * it is theoretically possible for a commit callback to be called
4679 * after an arbitrary amount of time has elapsed since its txg has been
4680 * synced, it is difficult to reliably determine whether a commit
4681 * callback hasn't been called due to high load or due to a flawed
4684 * In practice, we will assume that if after a certain number of txgs a
4685 * commit callback hasn't been called, then most likely there's an
4686 * implementation bug..
4688 tmp_cb
= list_head(&zcl
.zcl_callbacks
);
4689 if (tmp_cb
!= NULL
&&
4690 tmp_cb
->zcd_txg
+ ZTEST_COMMIT_CB_THRESH
< txg
) {
4691 fatal(0, "Commit callback threshold exceeded, oldest txg: %"
4692 PRIu64
", open txg: %" PRIu64
"\n", tmp_cb
->zcd_txg
, txg
);
4696 * Let's find the place to insert our callbacks.
4698 * Even though the list is ordered by txg, it is possible for the
4699 * insertion point to not be the end because our txg may already be
4700 * quiescing at this point and other callbacks in the open txg
4701 * (from other objsets) may have sneaked in.
4703 tmp_cb
= list_tail(&zcl
.zcl_callbacks
);
4704 while (tmp_cb
!= NULL
&& tmp_cb
->zcd_txg
> txg
)
4705 tmp_cb
= list_prev(&zcl
.zcl_callbacks
, tmp_cb
);
4707 /* Add the 3 callbacks to the list */
4708 for (i
= 0; i
< 3; i
++) {
4710 list_insert_head(&zcl
.zcl_callbacks
, cb_data
[i
]);
4712 list_insert_after(&zcl
.zcl_callbacks
, tmp_cb
,
4715 cb_data
[i
]->zcd_added
= B_TRUE
;
4716 VERIFY(!cb_data
[i
]->zcd_called
);
4718 tmp_cb
= cb_data
[i
];
4723 (void) mutex_exit(&zcl
.zcl_callbacks_lock
);
4727 umem_free(od
, sizeof (ztest_od_t
));
4732 ztest_dsl_prop_get_set(ztest_ds_t
*zd
, uint64_t id
)
4734 zfs_prop_t proplist
[] = {
4736 ZFS_PROP_COMPRESSION
,
4742 (void) rw_rdlock(&ztest_name_lock
);
4744 for (p
= 0; p
< sizeof (proplist
) / sizeof (proplist
[0]); p
++)
4745 (void) ztest_dsl_prop_set_uint64(zd
->zd_name
, proplist
[p
],
4746 ztest_random_dsl_prop(proplist
[p
]), (int)ztest_random(2));
4748 (void) rw_unlock(&ztest_name_lock
);
4753 ztest_spa_prop_get_set(ztest_ds_t
*zd
, uint64_t id
)
4755 nvlist_t
*props
= NULL
;
4757 (void) rw_rdlock(&ztest_name_lock
);
4759 (void) ztest_spa_prop_set_uint64(ZPOOL_PROP_DEDUPDITTO
,
4760 ZIO_DEDUPDITTO_MIN
+ ztest_random(ZIO_DEDUPDITTO_MIN
));
4762 VERIFY0(spa_prop_get(ztest_spa
, &props
));
4764 if (ztest_opts
.zo_verbose
>= 6)
4765 dump_nvlist(props
, 4);
4769 (void) rw_unlock(&ztest_name_lock
);
4773 user_release_one(const char *snapname
, const char *holdname
)
4775 nvlist_t
*snaps
, *holds
;
4778 snaps
= fnvlist_alloc();
4779 holds
= fnvlist_alloc();
4780 fnvlist_add_boolean(holds
, holdname
);
4781 fnvlist_add_nvlist(snaps
, snapname
, holds
);
4782 fnvlist_free(holds
);
4783 error
= dsl_dataset_user_release(snaps
, NULL
);
4784 fnvlist_free(snaps
);
4789 * Test snapshot hold/release and deferred destroy.
4792 ztest_dmu_snapshot_hold(ztest_ds_t
*zd
, uint64_t id
)
4795 objset_t
*os
= zd
->zd_os
;
4799 char clonename
[100];
4801 char osname
[MAXNAMELEN
];
4804 (void) rw_rdlock(&ztest_name_lock
);
4806 dmu_objset_name(os
, osname
);
4808 (void) snprintf(snapname
, sizeof (snapname
), "sh1_%llu",
4810 (void) snprintf(fullname
, sizeof (fullname
), "%s@%s", osname
, snapname
);
4811 (void) snprintf(clonename
, sizeof (clonename
),
4812 "%s/ch1_%llu", osname
, (u_longlong_t
)id
);
4813 (void) snprintf(tag
, sizeof (tag
), "tag_%llu", (u_longlong_t
)id
);
4816 * Clean up from any previous run.
4818 error
= dsl_destroy_head(clonename
);
4819 if (error
!= ENOENT
)
4821 error
= user_release_one(fullname
, tag
);
4822 if (error
!= ESRCH
&& error
!= ENOENT
)
4824 error
= dsl_destroy_snapshot(fullname
, B_FALSE
);
4825 if (error
!= ENOENT
)
4829 * Create snapshot, clone it, mark snap for deferred destroy,
4830 * destroy clone, verify snap was also destroyed.
4832 error
= dmu_objset_snapshot_one(osname
, snapname
);
4834 if (error
== ENOSPC
) {
4835 ztest_record_enospc("dmu_objset_snapshot");
4838 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname
, error
);
4841 error
= dmu_objset_clone(clonename
, fullname
);
4843 if (error
== ENOSPC
) {
4844 ztest_record_enospc("dmu_objset_clone");
4847 fatal(0, "dmu_objset_clone(%s) = %d", clonename
, error
);
4850 error
= dsl_destroy_snapshot(fullname
, B_TRUE
);
4852 fatal(0, "dsl_destroy_snapshot(%s, B_TRUE) = %d",
4856 error
= dsl_destroy_head(clonename
);
4858 fatal(0, "dsl_destroy_head(%s) = %d", clonename
, error
);
4860 error
= dmu_objset_hold(fullname
, FTAG
, &origin
);
4861 if (error
!= ENOENT
)
4862 fatal(0, "dmu_objset_hold(%s) = %d", fullname
, error
);
4865 * Create snapshot, add temporary hold, verify that we can't
4866 * destroy a held snapshot, mark for deferred destroy,
4867 * release hold, verify snapshot was destroyed.
4869 error
= dmu_objset_snapshot_one(osname
, snapname
);
4871 if (error
== ENOSPC
) {
4872 ztest_record_enospc("dmu_objset_snapshot");
4875 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname
, error
);
4878 holds
= fnvlist_alloc();
4879 fnvlist_add_string(holds
, fullname
, tag
);
4880 error
= dsl_dataset_user_hold(holds
, 0, NULL
);
4881 fnvlist_free(holds
);
4883 if (error
== ENOSPC
) {
4884 ztest_record_enospc("dsl_dataset_user_hold");
4887 fatal(0, "dsl_dataset_user_hold(%s, %s) = %u",
4888 fullname
, tag
, error
);
4891 error
= dsl_destroy_snapshot(fullname
, B_FALSE
);
4892 if (error
!= EBUSY
) {
4893 fatal(0, "dsl_destroy_snapshot(%s, B_FALSE) = %d",
4897 error
= dsl_destroy_snapshot(fullname
, B_TRUE
);
4899 fatal(0, "dsl_destroy_snapshot(%s, B_TRUE) = %d",
4903 error
= user_release_one(fullname
, tag
);
4905 fatal(0, "user_release_one(%s, %s) = %d", fullname
, tag
, error
);
4907 VERIFY3U(dmu_objset_hold(fullname
, FTAG
, &origin
), ==, ENOENT
);
4910 (void) rw_unlock(&ztest_name_lock
);
4914 * Inject random faults into the on-disk data.
4918 ztest_fault_inject(ztest_ds_t
*zd
, uint64_t id
)
4920 ztest_shared_t
*zs
= ztest_shared
;
4921 spa_t
*spa
= ztest_spa
;
4925 uint64_t bad
= 0x1990c0ffeedecadeull
;
4930 int bshift
= SPA_MAXBLOCKSHIFT
+ 2; /* don't scrog all labels */
4936 boolean_t islog
= B_FALSE
;
4938 path0
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
4939 pathrand
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
4941 mutex_enter(&ztest_vdev_lock
);
4942 maxfaults
= MAXFAULTS();
4943 leaves
= MAX(zs
->zs_mirrors
, 1) * ztest_opts
.zo_raidz
;
4944 mirror_save
= zs
->zs_mirrors
;
4945 mutex_exit(&ztest_vdev_lock
);
4947 ASSERT(leaves
>= 1);
4950 * Grab the name lock as reader. There are some operations
4951 * which don't like to have their vdevs changed while
4952 * they are in progress (i.e. spa_change_guid). Those
4953 * operations will have grabbed the name lock as writer.
4955 (void) rw_rdlock(&ztest_name_lock
);
4958 * We need SCL_STATE here because we're going to look at vd0->vdev_tsd.
4960 spa_config_enter(spa
, SCL_STATE
, FTAG
, RW_READER
);
4962 if (ztest_random(2) == 0) {
4964 * Inject errors on a normal data device or slog device.
4966 top
= ztest_random_vdev_top(spa
, B_TRUE
);
4967 leaf
= ztest_random(leaves
) + zs
->zs_splits
;
4970 * Generate paths to the first leaf in this top-level vdev,
4971 * and to the random leaf we selected. We'll induce transient
4972 * write failures and random online/offline activity on leaf 0,
4973 * and we'll write random garbage to the randomly chosen leaf.
4975 (void) snprintf(path0
, MAXPATHLEN
, ztest_dev_template
,
4976 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
4977 top
* leaves
+ zs
->zs_splits
);
4978 (void) snprintf(pathrand
, MAXPATHLEN
, ztest_dev_template
,
4979 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
4980 top
* leaves
+ leaf
);
4982 vd0
= vdev_lookup_by_path(spa
->spa_root_vdev
, path0
);
4983 if (vd0
!= NULL
&& vd0
->vdev_top
->vdev_islog
)
4987 * If the top-level vdev needs to be resilvered
4988 * then we only allow faults on the device that is
4991 if (vd0
!= NULL
&& maxfaults
!= 1 &&
4992 (!vdev_resilver_needed(vd0
->vdev_top
, NULL
, NULL
) ||
4993 vd0
->vdev_resilver_txg
!= 0)) {
4995 * Make vd0 explicitly claim to be unreadable,
4996 * or unwriteable, or reach behind its back
4997 * and close the underlying fd. We can do this if
4998 * maxfaults == 0 because we'll fail and reexecute,
4999 * and we can do it if maxfaults >= 2 because we'll
5000 * have enough redundancy. If maxfaults == 1, the
5001 * combination of this with injection of random data
5002 * corruption below exceeds the pool's fault tolerance.
5004 vdev_file_t
*vf
= vd0
->vdev_tsd
;
5006 if (vf
!= NULL
&& ztest_random(3) == 0) {
5007 (void) close(vf
->vf_vnode
->v_fd
);
5008 vf
->vf_vnode
->v_fd
= -1;
5009 } else if (ztest_random(2) == 0) {
5010 vd0
->vdev_cant_read
= B_TRUE
;
5012 vd0
->vdev_cant_write
= B_TRUE
;
5014 guid0
= vd0
->vdev_guid
;
5018 * Inject errors on an l2cache device.
5020 spa_aux_vdev_t
*sav
= &spa
->spa_l2cache
;
5022 if (sav
->sav_count
== 0) {
5023 spa_config_exit(spa
, SCL_STATE
, FTAG
);
5024 (void) rw_unlock(&ztest_name_lock
);
5027 vd0
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)];
5028 guid0
= vd0
->vdev_guid
;
5029 (void) strcpy(path0
, vd0
->vdev_path
);
5030 (void) strcpy(pathrand
, vd0
->vdev_path
);
5034 maxfaults
= INT_MAX
; /* no limit on cache devices */
5037 spa_config_exit(spa
, SCL_STATE
, FTAG
);
5038 (void) rw_unlock(&ztest_name_lock
);
5041 * If we can tolerate two or more faults, or we're dealing
5042 * with a slog, randomly online/offline vd0.
5044 if ((maxfaults
>= 2 || islog
) && guid0
!= 0) {
5045 if (ztest_random(10) < 6) {
5046 int flags
= (ztest_random(2) == 0 ?
5047 ZFS_OFFLINE_TEMPORARY
: 0);
5050 * We have to grab the zs_name_lock as writer to
5051 * prevent a race between offlining a slog and
5052 * destroying a dataset. Offlining the slog will
5053 * grab a reference on the dataset which may cause
5054 * dsl_destroy_head() to fail with EBUSY thus
5055 * leaving the dataset in an inconsistent state.
5058 (void) rw_wrlock(&ztest_name_lock
);
5060 VERIFY(vdev_offline(spa
, guid0
, flags
) != EBUSY
);
5063 (void) rw_unlock(&ztest_name_lock
);
5066 * Ideally we would like to be able to randomly
5067 * call vdev_[on|off]line without holding locks
5068 * to force unpredictable failures but the side
5069 * effects of vdev_[on|off]line prevent us from
5070 * doing so. We grab the ztest_vdev_lock here to
5071 * prevent a race between injection testing and
5074 mutex_enter(&ztest_vdev_lock
);
5075 (void) vdev_online(spa
, guid0
, 0, NULL
);
5076 mutex_exit(&ztest_vdev_lock
);
5084 * We have at least single-fault tolerance, so inject data corruption.
5086 fd
= open(pathrand
, O_RDWR
);
5088 if (fd
== -1) /* we hit a gap in the device namespace */
5091 fsize
= lseek(fd
, 0, SEEK_END
);
5093 while (--iters
!= 0) {
5094 offset
= ztest_random(fsize
/ (leaves
<< bshift
)) *
5095 (leaves
<< bshift
) + (leaf
<< bshift
) +
5096 (ztest_random(1ULL << (bshift
- 1)) & -8ULL);
5098 if (offset
>= fsize
)
5101 mutex_enter(&ztest_vdev_lock
);
5102 if (mirror_save
!= zs
->zs_mirrors
) {
5103 mutex_exit(&ztest_vdev_lock
);
5108 if (pwrite(fd
, &bad
, sizeof (bad
), offset
) != sizeof (bad
))
5109 fatal(1, "can't inject bad word at 0x%llx in %s",
5112 mutex_exit(&ztest_vdev_lock
);
5114 if (ztest_opts
.zo_verbose
>= 7)
5115 (void) printf("injected bad word into %s,"
5116 " offset 0x%llx\n", pathrand
, (u_longlong_t
)offset
);
5121 umem_free(path0
, MAXPATHLEN
);
5122 umem_free(pathrand
, MAXPATHLEN
);
5126 * Verify that DDT repair works as expected.
5129 ztest_ddt_repair(ztest_ds_t
*zd
, uint64_t id
)
5131 ztest_shared_t
*zs
= ztest_shared
;
5132 spa_t
*spa
= ztest_spa
;
5133 objset_t
*os
= zd
->zd_os
;
5135 uint64_t object
, blocksize
, txg
, pattern
, psize
;
5136 enum zio_checksum checksum
= spa_dedup_checksum(spa
);
5141 int copies
= 2 * ZIO_DEDUPDITTO_MIN
;
5144 blocksize
= ztest_random_blocksize();
5145 blocksize
= MIN(blocksize
, 2048); /* because we write so many */
5147 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
5148 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0);
5150 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
5151 umem_free(od
, sizeof (ztest_od_t
));
5156 * Take the name lock as writer to prevent anyone else from changing
5157 * the pool and dataset properies we need to maintain during this test.
5159 (void) rw_wrlock(&ztest_name_lock
);
5161 if (ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_DEDUP
, checksum
,
5163 ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_COPIES
, 1,
5165 (void) rw_unlock(&ztest_name_lock
);
5166 umem_free(od
, sizeof (ztest_od_t
));
5170 object
= od
[0].od_object
;
5171 blocksize
= od
[0].od_blocksize
;
5172 pattern
= zs
->zs_guid
^ dmu_objset_fsid_guid(os
);
5174 ASSERT(object
!= 0);
5176 tx
= dmu_tx_create(os
);
5177 dmu_tx_hold_write(tx
, object
, 0, copies
* blocksize
);
5178 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
5180 (void) rw_unlock(&ztest_name_lock
);
5181 umem_free(od
, sizeof (ztest_od_t
));
5186 * Write all the copies of our block.
5188 for (i
= 0; i
< copies
; i
++) {
5189 uint64_t offset
= i
* blocksize
;
5190 int error
= dmu_buf_hold(os
, object
, offset
, FTAG
, &db
,
5191 DMU_READ_NO_PREFETCH
);
5193 fatal(B_FALSE
, "dmu_buf_hold(%p, %llu, %llu) = %u",
5194 os
, (long long)object
, (long long) offset
, error
);
5196 ASSERT(db
->db_offset
== offset
);
5197 ASSERT(db
->db_size
== blocksize
);
5198 ASSERT(ztest_pattern_match(db
->db_data
, db
->db_size
, pattern
) ||
5199 ztest_pattern_match(db
->db_data
, db
->db_size
, 0ULL));
5200 dmu_buf_will_fill(db
, tx
);
5201 ztest_pattern_set(db
->db_data
, db
->db_size
, pattern
);
5202 dmu_buf_rele(db
, FTAG
);
5206 txg_wait_synced(spa_get_dsl(spa
), txg
);
5209 * Find out what block we got.
5211 VERIFY0(dmu_buf_hold(os
, object
, 0, FTAG
, &db
,
5212 DMU_READ_NO_PREFETCH
));
5213 blk
= *((dmu_buf_impl_t
*)db
)->db_blkptr
;
5214 dmu_buf_rele(db
, FTAG
);
5217 * Damage the block. Dedup-ditto will save us when we read it later.
5219 psize
= BP_GET_PSIZE(&blk
);
5220 buf
= zio_buf_alloc(psize
);
5221 ztest_pattern_set(buf
, psize
, ~pattern
);
5223 (void) zio_wait(zio_rewrite(NULL
, spa
, 0, &blk
,
5224 buf
, psize
, NULL
, NULL
, ZIO_PRIORITY_SYNC_WRITE
,
5225 ZIO_FLAG_CANFAIL
| ZIO_FLAG_INDUCE_DAMAGE
, NULL
));
5227 zio_buf_free(buf
, psize
);
5229 (void) rw_unlock(&ztest_name_lock
);
5230 umem_free(od
, sizeof (ztest_od_t
));
5238 ztest_scrub(ztest_ds_t
*zd
, uint64_t id
)
5240 spa_t
*spa
= ztest_spa
;
5242 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5243 (void) poll(NULL
, 0, 100); /* wait a moment, then force a restart */
5244 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5248 * Change the guid for the pool.
5252 ztest_reguid(ztest_ds_t
*zd
, uint64_t id
)
5254 spa_t
*spa
= ztest_spa
;
5255 uint64_t orig
, load
;
5258 orig
= spa_guid(spa
);
5259 load
= spa_load_guid(spa
);
5261 (void) rw_wrlock(&ztest_name_lock
);
5262 error
= spa_change_guid(spa
);
5263 (void) rw_unlock(&ztest_name_lock
);
5268 if (ztest_opts
.zo_verbose
>= 4) {
5269 (void) printf("Changed guid old %llu -> %llu\n",
5270 (u_longlong_t
)orig
, (u_longlong_t
)spa_guid(spa
));
5273 VERIFY3U(orig
, !=, spa_guid(spa
));
5274 VERIFY3U(load
, ==, spa_load_guid(spa
));
5278 * Rename the pool to a different name and then rename it back.
5282 ztest_spa_rename(ztest_ds_t
*zd
, uint64_t id
)
5284 char *oldname
, *newname
;
5287 (void) rw_wrlock(&ztest_name_lock
);
5289 oldname
= ztest_opts
.zo_pool
;
5290 newname
= umem_alloc(strlen(oldname
) + 5, UMEM_NOFAIL
);
5291 (void) strcpy(newname
, oldname
);
5292 (void) strcat(newname
, "_tmp");
5297 VERIFY3U(0, ==, spa_rename(oldname
, newname
));
5300 * Try to open it under the old name, which shouldn't exist
5302 VERIFY3U(ENOENT
, ==, spa_open(oldname
, &spa
, FTAG
));
5305 * Open it under the new name and make sure it's still the same spa_t.
5307 VERIFY3U(0, ==, spa_open(newname
, &spa
, FTAG
));
5309 ASSERT(spa
== ztest_spa
);
5310 spa_close(spa
, FTAG
);
5313 * Rename it back to the original
5315 VERIFY3U(0, ==, spa_rename(newname
, oldname
));
5318 * Make sure it can still be opened
5320 VERIFY3U(0, ==, spa_open(oldname
, &spa
, FTAG
));
5322 ASSERT(spa
== ztest_spa
);
5323 spa_close(spa
, FTAG
);
5325 umem_free(newname
, strlen(newname
) + 1);
5327 (void) rw_unlock(&ztest_name_lock
);
5331 * Verify pool integrity by running zdb.
5334 ztest_run_zdb(char *pool
)
5342 bin
= umem_alloc(MAXPATHLEN
+ MAXNAMELEN
+ 20, UMEM_NOFAIL
);
5343 zdb
= umem_alloc(MAXPATHLEN
+ MAXNAMELEN
+ 20, UMEM_NOFAIL
);
5344 zbuf
= umem_alloc(1024, UMEM_NOFAIL
);
5346 VERIFY(realpath(getexecname(), bin
) != NULL
);
5347 if (strncmp(bin
, "/usr/sbin/ztest", 15) == 0) {
5348 strcpy(bin
, "/usr/sbin/zdb"); /* Installed */
5349 } else if (strncmp(bin
, "/sbin/ztest", 11) == 0) {
5350 strcpy(bin
, "/sbin/zdb"); /* Installed */
5352 strstr(bin
, "/ztest/")[0] = '\0'; /* In-tree */
5353 strcat(bin
, "/zdb/zdb");
5357 "%s -bcc%s%s -d -U %s %s",
5359 ztest_opts
.zo_verbose
>= 3 ? "s" : "",
5360 ztest_opts
.zo_verbose
>= 4 ? "v" : "",
5364 if (ztest_opts
.zo_verbose
>= 5)
5365 (void) printf("Executing %s\n", strstr(zdb
, "zdb "));
5367 fp
= popen(zdb
, "r");
5369 while (fgets(zbuf
, 1024, fp
) != NULL
)
5370 if (ztest_opts
.zo_verbose
>= 3)
5371 (void) printf("%s", zbuf
);
5373 status
= pclose(fp
);
5378 ztest_dump_core
= 0;
5379 if (WIFEXITED(status
))
5380 fatal(0, "'%s' exit code %d", zdb
, WEXITSTATUS(status
));
5382 fatal(0, "'%s' died with signal %d", zdb
, WTERMSIG(status
));
5384 umem_free(bin
, MAXPATHLEN
+ MAXNAMELEN
+ 20);
5385 umem_free(zdb
, MAXPATHLEN
+ MAXNAMELEN
+ 20);
5386 umem_free(zbuf
, 1024);
5390 ztest_walk_pool_directory(char *header
)
5394 if (ztest_opts
.zo_verbose
>= 6)
5395 (void) printf("%s\n", header
);
5397 mutex_enter(&spa_namespace_lock
);
5398 while ((spa
= spa_next(spa
)) != NULL
)
5399 if (ztest_opts
.zo_verbose
>= 6)
5400 (void) printf("\t%s\n", spa_name(spa
));
5401 mutex_exit(&spa_namespace_lock
);
5405 ztest_spa_import_export(char *oldname
, char *newname
)
5407 nvlist_t
*config
, *newconfig
;
5412 if (ztest_opts
.zo_verbose
>= 4) {
5413 (void) printf("import/export: old = %s, new = %s\n",
5418 * Clean up from previous runs.
5420 (void) spa_destroy(newname
);
5423 * Get the pool's configuration and guid.
5425 VERIFY3U(0, ==, spa_open(oldname
, &spa
, FTAG
));
5428 * Kick off a scrub to tickle scrub/export races.
5430 if (ztest_random(2) == 0)
5431 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5433 pool_guid
= spa_guid(spa
);
5434 spa_close(spa
, FTAG
);
5436 ztest_walk_pool_directory("pools before export");
5441 VERIFY3U(0, ==, spa_export(oldname
, &config
, B_FALSE
, B_FALSE
));
5443 ztest_walk_pool_directory("pools after export");
5448 newconfig
= spa_tryimport(config
);
5449 ASSERT(newconfig
!= NULL
);
5450 nvlist_free(newconfig
);
5453 * Import it under the new name.
5455 error
= spa_import(newname
, config
, NULL
, 0);
5457 dump_nvlist(config
, 0);
5458 fatal(B_FALSE
, "couldn't import pool %s as %s: error %u",
5459 oldname
, newname
, error
);
5462 ztest_walk_pool_directory("pools after import");
5465 * Try to import it again -- should fail with EEXIST.
5467 VERIFY3U(EEXIST
, ==, spa_import(newname
, config
, NULL
, 0));
5470 * Try to import it under a different name -- should fail with EEXIST.
5472 VERIFY3U(EEXIST
, ==, spa_import(oldname
, config
, NULL
, 0));
5475 * Verify that the pool is no longer visible under the old name.
5477 VERIFY3U(ENOENT
, ==, spa_open(oldname
, &spa
, FTAG
));
5480 * Verify that we can open and close the pool using the new name.
5482 VERIFY3U(0, ==, spa_open(newname
, &spa
, FTAG
));
5483 ASSERT(pool_guid
== spa_guid(spa
));
5484 spa_close(spa
, FTAG
);
5486 nvlist_free(config
);
5490 ztest_resume(spa_t
*spa
)
5492 if (spa_suspended(spa
) && ztest_opts
.zo_verbose
>= 6)
5493 (void) printf("resuming from suspended state\n");
5494 spa_vdev_state_enter(spa
, SCL_NONE
);
5495 vdev_clear(spa
, NULL
);
5496 (void) spa_vdev_state_exit(spa
, NULL
, 0);
5497 (void) zio_resume(spa
);
5501 ztest_resume_thread(void *arg
)
5505 while (!ztest_exiting
) {
5506 if (spa_suspended(spa
))
5508 (void) poll(NULL
, 0, 100);
5520 ztest_deadman_alarm(int sig
)
5522 fatal(0, "failed to complete within %d seconds of deadline", GRACE
);
5527 ztest_execute(int test
, ztest_info_t
*zi
, uint64_t id
)
5529 ztest_ds_t
*zd
= &ztest_ds
[id
% ztest_opts
.zo_datasets
];
5530 ztest_shared_callstate_t
*zc
= ZTEST_GET_SHARED_CALLSTATE(test
);
5531 hrtime_t functime
= gethrtime();
5534 for (i
= 0; i
< zi
->zi_iters
; i
++)
5535 zi
->zi_func(zd
, id
);
5537 functime
= gethrtime() - functime
;
5539 atomic_add_64(&zc
->zc_count
, 1);
5540 atomic_add_64(&zc
->zc_time
, functime
);
5542 if (ztest_opts
.zo_verbose
>= 4) {
5544 (void) dladdr((void *)zi
->zi_func
, &dli
);
5545 (void) printf("%6.2f sec in %s\n",
5546 (double)functime
/ NANOSEC
, dli
.dli_sname
);
5551 ztest_thread(void *arg
)
5554 uint64_t id
= (uintptr_t)arg
;
5555 ztest_shared_t
*zs
= ztest_shared
;
5559 ztest_shared_callstate_t
*zc
;
5561 while ((now
= gethrtime()) < zs
->zs_thread_stop
) {
5563 * See if it's time to force a crash.
5565 if (now
> zs
->zs_thread_kill
)
5569 * If we're getting ENOSPC with some regularity, stop.
5571 if (zs
->zs_enospc_count
> 10)
5575 * Pick a random function to execute.
5577 rand
= ztest_random(ZTEST_FUNCS
);
5578 zi
= &ztest_info
[rand
];
5579 zc
= ZTEST_GET_SHARED_CALLSTATE(rand
);
5580 call_next
= zc
->zc_next
;
5582 if (now
>= call_next
&&
5583 atomic_cas_64(&zc
->zc_next
, call_next
, call_next
+
5584 ztest_random(2 * zi
->zi_interval
[0] + 1)) == call_next
) {
5585 ztest_execute(rand
, zi
, id
);
5595 ztest_dataset_name(char *dsname
, char *pool
, int d
)
5597 (void) snprintf(dsname
, MAXNAMELEN
, "%s/ds_%d", pool
, d
);
5601 ztest_dataset_destroy(int d
)
5603 char name
[MAXNAMELEN
];
5606 ztest_dataset_name(name
, ztest_opts
.zo_pool
, d
);
5608 if (ztest_opts
.zo_verbose
>= 3)
5609 (void) printf("Destroying %s to free up space\n", name
);
5612 * Cleanup any non-standard clones and snapshots. In general,
5613 * ztest thread t operates on dataset (t % zopt_datasets),
5614 * so there may be more than one thing to clean up.
5616 for (t
= d
; t
< ztest_opts
.zo_threads
;
5617 t
+= ztest_opts
.zo_datasets
)
5618 ztest_dsl_dataset_cleanup(name
, t
);
5620 (void) dmu_objset_find(name
, ztest_objset_destroy_cb
, NULL
,
5621 DS_FIND_SNAPSHOTS
| DS_FIND_CHILDREN
);
5625 ztest_dataset_dirobj_verify(ztest_ds_t
*zd
)
5627 uint64_t usedobjs
, dirobjs
, scratch
;
5630 * ZTEST_DIROBJ is the object directory for the entire dataset.
5631 * Therefore, the number of objects in use should equal the
5632 * number of ZTEST_DIROBJ entries, +1 for ZTEST_DIROBJ itself.
5633 * If not, we have an object leak.
5635 * Note that we can only check this in ztest_dataset_open(),
5636 * when the open-context and syncing-context values agree.
5637 * That's because zap_count() returns the open-context value,
5638 * while dmu_objset_space() returns the rootbp fill count.
5640 VERIFY3U(0, ==, zap_count(zd
->zd_os
, ZTEST_DIROBJ
, &dirobjs
));
5641 dmu_objset_space(zd
->zd_os
, &scratch
, &scratch
, &usedobjs
, &scratch
);
5642 ASSERT3U(dirobjs
+ 1, ==, usedobjs
);
5646 ztest_dataset_open(int d
)
5648 ztest_ds_t
*zd
= &ztest_ds
[d
];
5649 uint64_t committed_seq
= ZTEST_GET_SHARED_DS(d
)->zd_seq
;
5652 char name
[MAXNAMELEN
];
5655 ztest_dataset_name(name
, ztest_opts
.zo_pool
, d
);
5657 (void) rw_rdlock(&ztest_name_lock
);
5659 error
= ztest_dataset_create(name
);
5660 if (error
== ENOSPC
) {
5661 (void) rw_unlock(&ztest_name_lock
);
5662 ztest_record_enospc(FTAG
);
5665 ASSERT(error
== 0 || error
== EEXIST
);
5667 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, zd
, &os
));
5668 (void) rw_unlock(&ztest_name_lock
);
5670 ztest_zd_init(zd
, ZTEST_GET_SHARED_DS(d
), os
);
5672 zilog
= zd
->zd_zilog
;
5674 if (zilog
->zl_header
->zh_claim_lr_seq
!= 0 &&
5675 zilog
->zl_header
->zh_claim_lr_seq
< committed_seq
)
5676 fatal(0, "missing log records: claimed %llu < committed %llu",
5677 zilog
->zl_header
->zh_claim_lr_seq
, committed_seq
);
5679 ztest_dataset_dirobj_verify(zd
);
5681 zil_replay(os
, zd
, ztest_replay_vector
);
5683 ztest_dataset_dirobj_verify(zd
);
5685 if (ztest_opts
.zo_verbose
>= 6)
5686 (void) printf("%s replay %llu blocks, %llu records, seq %llu\n",
5688 (u_longlong_t
)zilog
->zl_parse_blk_count
,
5689 (u_longlong_t
)zilog
->zl_parse_lr_count
,
5690 (u_longlong_t
)zilog
->zl_replaying_seq
);
5692 zilog
= zil_open(os
, ztest_get_data
);
5694 if (zilog
->zl_replaying_seq
!= 0 &&
5695 zilog
->zl_replaying_seq
< committed_seq
)
5696 fatal(0, "missing log records: replayed %llu < committed %llu",
5697 zilog
->zl_replaying_seq
, committed_seq
);
5703 ztest_dataset_close(int d
)
5705 ztest_ds_t
*zd
= &ztest_ds
[d
];
5707 zil_close(zd
->zd_zilog
);
5708 dmu_objset_disown(zd
->zd_os
, zd
);
5714 * Kick off threads to run tests on all datasets in parallel.
5717 ztest_run(ztest_shared_t
*zs
)
5722 kthread_t
*resume_thread
;
5727 ztest_exiting
= B_FALSE
;
5730 * Initialize parent/child shared state.
5732 mutex_init(&ztest_vdev_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
5733 VERIFY(rwlock_init(&ztest_name_lock
, USYNC_THREAD
, NULL
) == 0);
5735 zs
->zs_thread_start
= gethrtime();
5736 zs
->zs_thread_stop
=
5737 zs
->zs_thread_start
+ ztest_opts
.zo_passtime
* NANOSEC
;
5738 zs
->zs_thread_stop
= MIN(zs
->zs_thread_stop
, zs
->zs_proc_stop
);
5739 zs
->zs_thread_kill
= zs
->zs_thread_stop
;
5740 if (ztest_random(100) < ztest_opts
.zo_killrate
) {
5741 zs
->zs_thread_kill
-=
5742 ztest_random(ztest_opts
.zo_passtime
* NANOSEC
);
5745 mutex_init(&zcl
.zcl_callbacks_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
5747 list_create(&zcl
.zcl_callbacks
, sizeof (ztest_cb_data_t
),
5748 offsetof(ztest_cb_data_t
, zcd_node
));
5753 kernel_init(FREAD
| FWRITE
);
5754 VERIFY0(spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
5755 spa
->spa_debug
= B_TRUE
;
5756 metaslab_preload_limit
= ztest_random(20) + 1;
5759 VERIFY0(dmu_objset_own(ztest_opts
.zo_pool
,
5760 DMU_OST_ANY
, B_TRUE
, FTAG
, &os
));
5761 zs
->zs_guid
= dmu_objset_fsid_guid(os
);
5762 dmu_objset_disown(os
, FTAG
);
5764 spa
->spa_dedup_ditto
= 2 * ZIO_DEDUPDITTO_MIN
;
5767 * We don't expect the pool to suspend unless maxfaults == 0,
5768 * in which case ztest_fault_inject() temporarily takes away
5769 * the only valid replica.
5771 if (MAXFAULTS() == 0)
5772 spa
->spa_failmode
= ZIO_FAILURE_MODE_WAIT
;
5774 spa
->spa_failmode
= ZIO_FAILURE_MODE_PANIC
;
5777 * Create a thread to periodically resume suspended I/O.
5779 VERIFY3P((resume_thread
= zk_thread_create(NULL
, 0,
5780 (thread_func_t
)ztest_resume_thread
, spa
, TS_RUN
, NULL
, 0, 0,
5781 PTHREAD_CREATE_JOINABLE
)), !=, NULL
);
5785 * Set a deadman alarm to abort() if we hang.
5787 signal(SIGALRM
, ztest_deadman_alarm
);
5788 alarm((zs
->zs_thread_stop
- zs
->zs_thread_start
) / NANOSEC
+ GRACE
);
5792 * Verify that we can safely inquire about about any object,
5793 * whether it's allocated or not. To make it interesting,
5794 * we probe a 5-wide window around each power of two.
5795 * This hits all edge cases, including zero and the max.
5797 for (t
= 0; t
< 64; t
++) {
5798 for (d
= -5; d
<= 5; d
++) {
5799 error
= dmu_object_info(spa
->spa_meta_objset
,
5800 (1ULL << t
) + d
, NULL
);
5801 ASSERT(error
== 0 || error
== ENOENT
||
5807 * If we got any ENOSPC errors on the previous run, destroy something.
5809 if (zs
->zs_enospc_count
!= 0) {
5810 int d
= ztest_random(ztest_opts
.zo_datasets
);
5811 ztest_dataset_destroy(d
);
5813 zs
->zs_enospc_count
= 0;
5815 tid
= umem_zalloc(ztest_opts
.zo_threads
* sizeof (kt_did_t
),
5818 if (ztest_opts
.zo_verbose
>= 4)
5819 (void) printf("starting main threads...\n");
5822 * Kick off all the tests that run in parallel.
5824 for (t
= 0; t
< ztest_opts
.zo_threads
; t
++) {
5827 if (t
< ztest_opts
.zo_datasets
&&
5828 ztest_dataset_open(t
) != 0)
5831 VERIFY3P(thread
= zk_thread_create(NULL
, 0,
5832 (thread_func_t
)ztest_thread
,
5833 (void *)(uintptr_t)t
, TS_RUN
, NULL
, 0, 0,
5834 PTHREAD_CREATE_JOINABLE
), !=, NULL
);
5835 tid
[t
] = thread
->t_tid
;
5839 * Wait for all of the tests to complete. We go in reverse order
5840 * so we don't close datasets while threads are still using them.
5842 for (t
= ztest_opts
.zo_threads
- 1; t
>= 0; t
--) {
5843 thread_join(tid
[t
]);
5844 if (t
< ztest_opts
.zo_datasets
)
5845 ztest_dataset_close(t
);
5848 txg_wait_synced(spa_get_dsl(spa
), 0);
5850 zs
->zs_alloc
= metaslab_class_get_alloc(spa_normal_class(spa
));
5851 zs
->zs_space
= metaslab_class_get_space(spa_normal_class(spa
));
5853 if (ztest_opts
.zo_verbose
>= 3)
5854 zfs_dbgmsg_print(FTAG
);
5856 umem_free(tid
, ztest_opts
.zo_threads
* sizeof (kt_did_t
));
5858 /* Kill the resume thread */
5859 ztest_exiting
= B_TRUE
;
5860 thread_join(resume_thread
->t_tid
);
5864 * Right before closing the pool, kick off a bunch of async I/O;
5865 * spa_close() should wait for it to complete.
5867 for (object
= 1; object
< 50; object
++)
5868 dmu_prefetch(spa
->spa_meta_objset
, object
, 0, 1ULL << 20);
5870 /* Verify that at least one commit cb was called in a timely fashion */
5871 if (zc_cb_counter
>= ZTEST_COMMIT_CB_MIN_REG
)
5872 VERIFY0(zc_min_txg_delay
);
5874 spa_close(spa
, FTAG
);
5877 * Verify that we can loop over all pools.
5879 mutex_enter(&spa_namespace_lock
);
5880 for (spa
= spa_next(NULL
); spa
!= NULL
; spa
= spa_next(spa
))
5881 if (ztest_opts
.zo_verbose
> 3)
5882 (void) printf("spa_next: found %s\n", spa_name(spa
));
5883 mutex_exit(&spa_namespace_lock
);
5886 * Verify that we can export the pool and reimport it under a
5889 if (ztest_random(2) == 0) {
5890 char name
[MAXNAMELEN
];
5891 (void) snprintf(name
, MAXNAMELEN
, "%s_import",
5892 ztest_opts
.zo_pool
);
5893 ztest_spa_import_export(ztest_opts
.zo_pool
, name
);
5894 ztest_spa_import_export(name
, ztest_opts
.zo_pool
);
5899 list_destroy(&zcl
.zcl_callbacks
);
5900 mutex_destroy(&zcl
.zcl_callbacks_lock
);
5901 (void) rwlock_destroy(&ztest_name_lock
);
5902 mutex_destroy(&ztest_vdev_lock
);
5908 ztest_ds_t
*zd
= &ztest_ds
[0];
5912 if (ztest_opts
.zo_verbose
>= 3)
5913 (void) printf("testing spa_freeze()...\n");
5915 kernel_init(FREAD
| FWRITE
);
5916 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
5917 VERIFY3U(0, ==, ztest_dataset_open(0));
5918 spa
->spa_debug
= B_TRUE
;
5922 * Force the first log block to be transactionally allocated.
5923 * We have to do this before we freeze the pool -- otherwise
5924 * the log chain won't be anchored.
5926 while (BP_IS_HOLE(&zd
->zd_zilog
->zl_header
->zh_log
)) {
5927 ztest_dmu_object_alloc_free(zd
, 0);
5928 zil_commit(zd
->zd_zilog
, 0);
5931 txg_wait_synced(spa_get_dsl(spa
), 0);
5934 * Freeze the pool. This stops spa_sync() from doing anything,
5935 * so that the only way to record changes from now on is the ZIL.
5940 * Run tests that generate log records but don't alter the pool config
5941 * or depend on DSL sync tasks (snapshots, objset create/destroy, etc).
5942 * We do a txg_wait_synced() after each iteration to force the txg
5943 * to increase well beyond the last synced value in the uberblock.
5944 * The ZIL should be OK with that.
5946 while (ztest_random(10) != 0 &&
5947 numloops
++ < ztest_opts
.zo_maxloops
) {
5948 ztest_dmu_write_parallel(zd
, 0);
5949 ztest_dmu_object_alloc_free(zd
, 0);
5950 txg_wait_synced(spa_get_dsl(spa
), 0);
5954 * Commit all of the changes we just generated.
5956 zil_commit(zd
->zd_zilog
, 0);
5957 txg_wait_synced(spa_get_dsl(spa
), 0);
5960 * Close our dataset and close the pool.
5962 ztest_dataset_close(0);
5963 spa_close(spa
, FTAG
);
5967 * Open and close the pool and dataset to induce log replay.
5969 kernel_init(FREAD
| FWRITE
);
5970 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
5971 ASSERT(spa_freeze_txg(spa
) == UINT64_MAX
);
5972 VERIFY3U(0, ==, ztest_dataset_open(0));
5973 ztest_dataset_close(0);
5975 spa
->spa_debug
= B_TRUE
;
5977 txg_wait_synced(spa_get_dsl(spa
), 0);
5978 ztest_reguid(NULL
, 0);
5980 spa_close(spa
, FTAG
);
5985 print_time(hrtime_t t
, char *timebuf
)
5987 hrtime_t s
= t
/ NANOSEC
;
5988 hrtime_t m
= s
/ 60;
5989 hrtime_t h
= m
/ 60;
5990 hrtime_t d
= h
/ 24;
5999 (void) sprintf(timebuf
,
6000 "%llud%02lluh%02llum%02llus", d
, h
, m
, s
);
6002 (void) sprintf(timebuf
, "%lluh%02llum%02llus", h
, m
, s
);
6004 (void) sprintf(timebuf
, "%llum%02llus", m
, s
);
6006 (void) sprintf(timebuf
, "%llus", s
);
6010 make_random_props(void)
6014 VERIFY(nvlist_alloc(&props
, NV_UNIQUE_NAME
, 0) == 0);
6015 if (ztest_random(2) == 0)
6017 VERIFY(nvlist_add_uint64(props
, "autoreplace", 1) == 0);
6023 * Create a storage pool with the given name and initial vdev size.
6024 * Then test spa_freeze() functionality.
6027 ztest_init(ztest_shared_t
*zs
)
6030 nvlist_t
*nvroot
, *props
;
6033 mutex_init(&ztest_vdev_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
6034 VERIFY(rwlock_init(&ztest_name_lock
, USYNC_THREAD
, NULL
) == 0);
6036 kernel_init(FREAD
| FWRITE
);
6039 * Create the storage pool.
6041 (void) spa_destroy(ztest_opts
.zo_pool
);
6042 ztest_shared
->zs_vdev_next_leaf
= 0;
6044 zs
->zs_mirrors
= ztest_opts
.zo_mirrors
;
6045 nvroot
= make_vdev_root(NULL
, NULL
, NULL
, ztest_opts
.zo_vdev_size
, 0,
6046 0, ztest_opts
.zo_raidz
, zs
->zs_mirrors
, 1);
6047 props
= make_random_props();
6048 for (i
= 0; i
< SPA_FEATURES
; i
++) {
6050 VERIFY3S(-1, !=, asprintf(&buf
, "feature@%s",
6051 spa_feature_table
[i
].fi_uname
));
6052 VERIFY3U(0, ==, nvlist_add_uint64(props
, buf
, 0));
6055 VERIFY3U(0, ==, spa_create(ztest_opts
.zo_pool
, nvroot
, props
, NULL
));
6056 nvlist_free(nvroot
);
6059 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
6060 zs
->zs_metaslab_sz
=
6061 1ULL << spa
->spa_root_vdev
->vdev_child
[0]->vdev_ms_shift
;
6062 spa_close(spa
, FTAG
);
6066 ztest_run_zdb(ztest_opts
.zo_pool
);
6070 ztest_run_zdb(ztest_opts
.zo_pool
);
6072 (void) rwlock_destroy(&ztest_name_lock
);
6073 mutex_destroy(&ztest_vdev_lock
);
6079 static char ztest_name_data
[] = "/tmp/ztest.data.XXXXXX";
6081 ztest_fd_data
= mkstemp(ztest_name_data
);
6082 ASSERT3S(ztest_fd_data
, >=, 0);
6083 (void) unlink(ztest_name_data
);
6087 shared_data_size(ztest_shared_hdr_t
*hdr
)
6091 size
= hdr
->zh_hdr_size
;
6092 size
+= hdr
->zh_opts_size
;
6093 size
+= hdr
->zh_size
;
6094 size
+= hdr
->zh_stats_size
* hdr
->zh_stats_count
;
6095 size
+= hdr
->zh_ds_size
* hdr
->zh_ds_count
;
6104 ztest_shared_hdr_t
*hdr
;
6106 hdr
= (void *)mmap(0, P2ROUNDUP(sizeof (*hdr
), getpagesize()),
6107 PROT_READ
| PROT_WRITE
, MAP_SHARED
, ztest_fd_data
, 0);
6108 VERIFY3P(hdr
, !=, MAP_FAILED
);
6110 VERIFY3U(0, ==, ftruncate(ztest_fd_data
, sizeof (ztest_shared_hdr_t
)));
6112 hdr
->zh_hdr_size
= sizeof (ztest_shared_hdr_t
);
6113 hdr
->zh_opts_size
= sizeof (ztest_shared_opts_t
);
6114 hdr
->zh_size
= sizeof (ztest_shared_t
);
6115 hdr
->zh_stats_size
= sizeof (ztest_shared_callstate_t
);
6116 hdr
->zh_stats_count
= ZTEST_FUNCS
;
6117 hdr
->zh_ds_size
= sizeof (ztest_shared_ds_t
);
6118 hdr
->zh_ds_count
= ztest_opts
.zo_datasets
;
6120 size
= shared_data_size(hdr
);
6121 VERIFY3U(0, ==, ftruncate(ztest_fd_data
, size
));
6123 (void) munmap((caddr_t
)hdr
, P2ROUNDUP(sizeof (*hdr
), getpagesize()));
6130 ztest_shared_hdr_t
*hdr
;
6133 hdr
= (void *)mmap(0, P2ROUNDUP(sizeof (*hdr
), getpagesize()),
6134 PROT_READ
, MAP_SHARED
, ztest_fd_data
, 0);
6135 VERIFY3P(hdr
, !=, MAP_FAILED
);
6137 size
= shared_data_size(hdr
);
6139 (void) munmap((caddr_t
)hdr
, P2ROUNDUP(sizeof (*hdr
), getpagesize()));
6140 hdr
= ztest_shared_hdr
= (void *)mmap(0, P2ROUNDUP(size
, getpagesize()),
6141 PROT_READ
| PROT_WRITE
, MAP_SHARED
, ztest_fd_data
, 0);
6142 VERIFY3P(hdr
, !=, MAP_FAILED
);
6143 buf
= (uint8_t *)hdr
;
6145 offset
= hdr
->zh_hdr_size
;
6146 ztest_shared_opts
= (void *)&buf
[offset
];
6147 offset
+= hdr
->zh_opts_size
;
6148 ztest_shared
= (void *)&buf
[offset
];
6149 offset
+= hdr
->zh_size
;
6150 ztest_shared_callstate
= (void *)&buf
[offset
];
6151 offset
+= hdr
->zh_stats_size
* hdr
->zh_stats_count
;
6152 ztest_shared_ds
= (void *)&buf
[offset
];
6156 exec_child(char *cmd
, char *libpath
, boolean_t ignorekill
, int *statusp
)
6160 char *cmdbuf
= NULL
;
6165 cmdbuf
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
6166 (void) strlcpy(cmdbuf
, getexecname(), MAXPATHLEN
);
6171 fatal(1, "fork failed");
6173 if (pid
== 0) { /* child */
6174 char *emptyargv
[2] = { cmd
, NULL
};
6175 char fd_data_str
[12];
6177 struct rlimit rl
= { 1024, 1024 };
6178 (void) setrlimit(RLIMIT_NOFILE
, &rl
);
6180 (void) close(ztest_fd_rand
);
6181 VERIFY(11 >= snprintf(fd_data_str
, 12, "%d", ztest_fd_data
));
6182 VERIFY(0 == setenv("ZTEST_FD_DATA", fd_data_str
, 1));
6184 (void) enable_extended_FILE_stdio(-1, -1);
6185 if (libpath
!= NULL
)
6186 VERIFY(0 == setenv("LD_LIBRARY_PATH", libpath
, 1));
6187 (void) execv(cmd
, emptyargv
);
6188 ztest_dump_core
= B_FALSE
;
6189 fatal(B_TRUE
, "exec failed: %s", cmd
);
6192 if (cmdbuf
!= NULL
) {
6193 umem_free(cmdbuf
, MAXPATHLEN
);
6197 while (waitpid(pid
, &status
, 0) != pid
)
6199 if (statusp
!= NULL
)
6202 if (WIFEXITED(status
)) {
6203 if (WEXITSTATUS(status
) != 0) {
6204 (void) fprintf(stderr
, "child exited with code %d\n",
6205 WEXITSTATUS(status
));
6209 } else if (WIFSIGNALED(status
)) {
6210 if (!ignorekill
|| WTERMSIG(status
) != SIGKILL
) {
6211 (void) fprintf(stderr
, "child died with signal %d\n",
6217 (void) fprintf(stderr
, "something strange happened to child\n");
6224 ztest_run_init(void)
6228 ztest_shared_t
*zs
= ztest_shared
;
6230 ASSERT(ztest_opts
.zo_init
!= 0);
6233 * Blow away any existing copy of zpool.cache
6235 (void) remove(spa_config_path
);
6238 * Create and initialize our storage pool.
6240 for (i
= 1; i
<= ztest_opts
.zo_init
; i
++) {
6241 bzero(zs
, sizeof (ztest_shared_t
));
6242 if (ztest_opts
.zo_verbose
>= 3 &&
6243 ztest_opts
.zo_init
!= 1) {
6244 (void) printf("ztest_init(), pass %d\n", i
);
6251 main(int argc
, char **argv
)
6259 ztest_shared_callstate_t
*zc
;
6266 char *fd_data_str
= getenv("ZTEST_FD_DATA");
6268 (void) setvbuf(stdout
, NULL
, _IOLBF
, 0);
6270 dprintf_setup(&argc
, argv
);
6272 ztest_fd_rand
= open("/dev/urandom", O_RDONLY
);
6273 ASSERT3S(ztest_fd_rand
, >=, 0);
6276 process_options(argc
, argv
);
6281 bcopy(&ztest_opts
, ztest_shared_opts
,
6282 sizeof (*ztest_shared_opts
));
6284 ztest_fd_data
= atoi(fd_data_str
);
6286 bcopy(ztest_shared_opts
, &ztest_opts
, sizeof (ztest_opts
));
6288 ASSERT3U(ztest_opts
.zo_datasets
, ==, ztest_shared_hdr
->zh_ds_count
);
6290 /* Override location of zpool.cache */
6291 VERIFY(asprintf((char **)&spa_config_path
, "%s/zpool.cache",
6292 ztest_opts
.zo_dir
) != -1);
6294 ztest_ds
= umem_alloc(ztest_opts
.zo_datasets
* sizeof (ztest_ds_t
),
6299 metaslab_gang_bang
= ztest_opts
.zo_metaslab_gang_bang
;
6300 metaslab_df_alloc_threshold
=
6301 zs
->zs_metaslab_df_alloc_threshold
;
6310 hasalt
= (strlen(ztest_opts
.zo_alt_ztest
) != 0);
6312 if (ztest_opts
.zo_verbose
>= 1) {
6313 (void) printf("%llu vdevs, %d datasets, %d threads,"
6314 " %llu seconds...\n",
6315 (u_longlong_t
)ztest_opts
.zo_vdevs
,
6316 ztest_opts
.zo_datasets
,
6317 ztest_opts
.zo_threads
,
6318 (u_longlong_t
)ztest_opts
.zo_time
);
6321 cmd
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
6322 (void) strlcpy(cmd
, getexecname(), MAXNAMELEN
);
6324 zs
->zs_do_init
= B_TRUE
;
6325 if (strlen(ztest_opts
.zo_alt_ztest
) != 0) {
6326 if (ztest_opts
.zo_verbose
>= 1) {
6327 (void) printf("Executing older ztest for "
6328 "initialization: %s\n", ztest_opts
.zo_alt_ztest
);
6330 VERIFY(!exec_child(ztest_opts
.zo_alt_ztest
,
6331 ztest_opts
.zo_alt_libpath
, B_FALSE
, NULL
));
6333 VERIFY(!exec_child(NULL
, NULL
, B_FALSE
, NULL
));
6335 zs
->zs_do_init
= B_FALSE
;
6337 zs
->zs_proc_start
= gethrtime();
6338 zs
->zs_proc_stop
= zs
->zs_proc_start
+ ztest_opts
.zo_time
* NANOSEC
;
6340 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
6341 zi
= &ztest_info
[f
];
6342 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6343 if (zs
->zs_proc_start
+ zi
->zi_interval
[0] > zs
->zs_proc_stop
)
6344 zc
->zc_next
= UINT64_MAX
;
6346 zc
->zc_next
= zs
->zs_proc_start
+
6347 ztest_random(2 * zi
->zi_interval
[0] + 1);
6351 * Run the tests in a loop. These tests include fault injection
6352 * to verify that self-healing data works, and forced crashes
6353 * to verify that we never lose on-disk consistency.
6355 while (gethrtime() < zs
->zs_proc_stop
) {
6360 * Initialize the workload counters for each function.
6362 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
6363 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6368 /* Set the allocation switch size */
6369 zs
->zs_metaslab_df_alloc_threshold
=
6370 ztest_random(zs
->zs_metaslab_sz
/ 4) + 1;
6372 if (!hasalt
|| ztest_random(2) == 0) {
6373 if (hasalt
&& ztest_opts
.zo_verbose
>= 1) {
6374 (void) printf("Executing newer ztest: %s\n",
6378 killed
= exec_child(cmd
, NULL
, B_TRUE
, &status
);
6380 if (hasalt
&& ztest_opts
.zo_verbose
>= 1) {
6381 (void) printf("Executing older ztest: %s\n",
6382 ztest_opts
.zo_alt_ztest
);
6385 killed
= exec_child(ztest_opts
.zo_alt_ztest
,
6386 ztest_opts
.zo_alt_libpath
, B_TRUE
, &status
);
6393 if (ztest_opts
.zo_verbose
>= 1) {
6394 hrtime_t now
= gethrtime();
6396 now
= MIN(now
, zs
->zs_proc_stop
);
6397 print_time(zs
->zs_proc_stop
- now
, timebuf
);
6398 nicenum(zs
->zs_space
, numbuf
);
6400 (void) printf("Pass %3d, %8s, %3llu ENOSPC, "
6401 "%4.1f%% of %5s used, %3.0f%% done, %8s to go\n",
6403 WIFEXITED(status
) ? "Complete" : "SIGKILL",
6404 (u_longlong_t
)zs
->zs_enospc_count
,
6405 100.0 * zs
->zs_alloc
/ zs
->zs_space
,
6407 100.0 * (now
- zs
->zs_proc_start
) /
6408 (ztest_opts
.zo_time
* NANOSEC
), timebuf
);
6411 if (ztest_opts
.zo_verbose
>= 2) {
6412 (void) printf("\nWorkload summary:\n\n");
6413 (void) printf("%7s %9s %s\n",
6414 "Calls", "Time", "Function");
6415 (void) printf("%7s %9s %s\n",
6416 "-----", "----", "--------");
6417 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
6420 zi
= &ztest_info
[f
];
6421 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6422 print_time(zc
->zc_time
, timebuf
);
6423 (void) dladdr((void *)zi
->zi_func
, &dli
);
6424 (void) printf("%7llu %9s %s\n",
6425 (u_longlong_t
)zc
->zc_count
, timebuf
,
6428 (void) printf("\n");
6432 * It's possible that we killed a child during a rename test,
6433 * in which case we'll have a 'ztest_tmp' pool lying around
6434 * instead of 'ztest'. Do a blind rename in case this happened.
6437 if (spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
) == 0) {
6438 spa_close(spa
, FTAG
);
6440 char tmpname
[MAXNAMELEN
];
6442 kernel_init(FREAD
| FWRITE
);
6443 (void) snprintf(tmpname
, sizeof (tmpname
), "%s_tmp",
6444 ztest_opts
.zo_pool
);
6445 (void) spa_rename(tmpname
, ztest_opts
.zo_pool
);
6449 ztest_run_zdb(ztest_opts
.zo_pool
);
6452 if (ztest_opts
.zo_verbose
>= 1) {
6454 (void) printf("%d runs of older ztest: %s\n", older
,
6455 ztest_opts
.zo_alt_ztest
);
6456 (void) printf("%d runs of newer ztest: %s\n", newer
,
6459 (void) printf("%d killed, %d completed, %.0f%% kill rate\n",
6460 kills
, iters
- kills
, (100.0 * kills
) / MAX(1, iters
));
6463 umem_free(cmd
, MAXNAMELEN
);