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, 2015 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/zfs_rlock.h>
105 #include <sys/vdev_impl.h>
106 #include <sys/vdev_file.h>
107 #include <sys/spa_impl.h>
108 #include <sys/metaslab_impl.h>
109 #include <sys/dsl_prop.h>
110 #include <sys/dsl_dataset.h>
111 #include <sys/dsl_destroy.h>
112 #include <sys/dsl_scan.h>
113 #include <sys/zio_checksum.h>
114 #include <sys/refcount.h>
115 #include <sys/zfeature.h>
116 #include <sys/dsl_userhold.h>
118 #include <stdio_ext.h>
125 #include <sys/fs/zfs.h>
126 #include <zfs_fletcher.h>
127 #include <libnvpair.h>
129 #include <execinfo.h> /* for backtrace() */
132 static int ztest_fd_data
= -1;
133 static int ztest_fd_rand
= -1;
135 typedef struct ztest_shared_hdr
{
136 uint64_t zh_hdr_size
;
137 uint64_t zh_opts_size
;
139 uint64_t zh_stats_size
;
140 uint64_t zh_stats_count
;
142 uint64_t zh_ds_count
;
143 } ztest_shared_hdr_t
;
145 static ztest_shared_hdr_t
*ztest_shared_hdr
;
147 typedef struct ztest_shared_opts
{
148 char zo_pool
[ZFS_MAX_DATASET_NAME_LEN
];
149 char zo_dir
[ZFS_MAX_DATASET_NAME_LEN
];
150 char zo_alt_ztest
[MAXNAMELEN
];
151 char zo_alt_libpath
[MAXNAMELEN
];
153 uint64_t zo_vdevtime
;
161 uint64_t zo_passtime
;
162 uint64_t zo_killrate
;
166 uint64_t zo_maxloops
;
167 uint64_t zo_metaslab_gang_bang
;
168 } ztest_shared_opts_t
;
170 static const ztest_shared_opts_t ztest_opts_defaults
= {
171 .zo_pool
= { 'z', 't', 'e', 's', 't', '\0' },
172 .zo_dir
= { '/', 't', 'm', 'p', '\0' },
173 .zo_alt_ztest
= { '\0' },
174 .zo_alt_libpath
= { '\0' },
176 .zo_ashift
= SPA_MINBLOCKSHIFT
,
179 .zo_raidz_parity
= 1,
180 .zo_vdev_size
= SPA_MINDEVSIZE
* 2,
183 .zo_passtime
= 60, /* 60 seconds */
184 .zo_killrate
= 70, /* 70% kill rate */
187 .zo_time
= 300, /* 5 minutes */
188 .zo_maxloops
= 50, /* max loops during spa_freeze() */
189 .zo_metaslab_gang_bang
= 32 << 10
192 extern uint64_t metaslab_gang_bang
;
193 extern uint64_t metaslab_df_alloc_threshold
;
194 extern int metaslab_preload_limit
;
195 extern boolean_t zfs_compressed_arc_enabled
;
197 static ztest_shared_opts_t
*ztest_shared_opts
;
198 static ztest_shared_opts_t ztest_opts
;
200 typedef struct ztest_shared_ds
{
204 static ztest_shared_ds_t
*ztest_shared_ds
;
205 #define ZTEST_GET_SHARED_DS(d) (&ztest_shared_ds[d])
207 #define BT_MAGIC 0x123456789abcdefULL
208 #define MAXFAULTS() \
209 (MAX(zs->zs_mirrors, 1) * (ztest_opts.zo_raidz_parity + 1) - 1)
213 ZTEST_IO_WRITE_PATTERN
,
214 ZTEST_IO_WRITE_ZEROES
,
221 typedef struct ztest_block_tag
{
225 uint64_t bt_dnodesize
;
232 typedef struct bufwad
{
250 #define ZTEST_RANGE_LOCKS 64
251 #define ZTEST_OBJECT_LOCKS 64
254 * Object descriptor. Used as a template for object lookup/create/remove.
256 typedef struct ztest_od
{
259 dmu_object_type_t od_type
;
260 dmu_object_type_t od_crtype
;
261 uint64_t od_blocksize
;
262 uint64_t od_crblocksize
;
263 uint64_t od_crdnodesize
;
266 char od_name
[ZFS_MAX_DATASET_NAME_LEN
];
272 typedef struct ztest_ds
{
273 ztest_shared_ds_t
*zd_shared
;
275 rwlock_t zd_zilog_lock
;
277 ztest_od_t
*zd_od
; /* debugging aid */
278 char zd_name
[ZFS_MAX_DATASET_NAME_LEN
];
279 kmutex_t zd_dirobj_lock
;
280 rll_t zd_object_lock
[ZTEST_OBJECT_LOCKS
];
281 zll_t zd_range_lock
[ZTEST_RANGE_LOCKS
];
285 * Per-iteration state.
287 typedef void ztest_func_t(ztest_ds_t
*zd
, uint64_t id
);
289 typedef struct ztest_info
{
290 ztest_func_t
*zi_func
; /* test function */
291 uint64_t zi_iters
; /* iterations per execution */
292 uint64_t *zi_interval
; /* execute every <interval> seconds */
293 const char *zi_funcname
; /* name of test function */
296 typedef struct ztest_shared_callstate
{
297 uint64_t zc_count
; /* per-pass count */
298 uint64_t zc_time
; /* per-pass time */
299 uint64_t zc_next
; /* next time to call this function */
300 } ztest_shared_callstate_t
;
302 static ztest_shared_callstate_t
*ztest_shared_callstate
;
303 #define ZTEST_GET_SHARED_CALLSTATE(c) (&ztest_shared_callstate[c])
305 ztest_func_t ztest_dmu_read_write
;
306 ztest_func_t ztest_dmu_write_parallel
;
307 ztest_func_t ztest_dmu_object_alloc_free
;
308 ztest_func_t ztest_dmu_commit_callbacks
;
309 ztest_func_t ztest_zap
;
310 ztest_func_t ztest_zap_parallel
;
311 ztest_func_t ztest_zil_commit
;
312 ztest_func_t ztest_zil_remount
;
313 ztest_func_t ztest_dmu_read_write_zcopy
;
314 ztest_func_t ztest_dmu_objset_create_destroy
;
315 ztest_func_t ztest_dmu_prealloc
;
316 ztest_func_t ztest_fzap
;
317 ztest_func_t ztest_dmu_snapshot_create_destroy
;
318 ztest_func_t ztest_dsl_prop_get_set
;
319 ztest_func_t ztest_spa_prop_get_set
;
320 ztest_func_t ztest_spa_create_destroy
;
321 ztest_func_t ztest_fault_inject
;
322 ztest_func_t ztest_ddt_repair
;
323 ztest_func_t ztest_dmu_snapshot_hold
;
324 ztest_func_t ztest_spa_rename
;
325 ztest_func_t ztest_scrub
;
326 ztest_func_t ztest_dsl_dataset_promote_busy
;
327 ztest_func_t ztest_vdev_attach_detach
;
328 ztest_func_t ztest_vdev_LUN_growth
;
329 ztest_func_t ztest_vdev_add_remove
;
330 ztest_func_t ztest_vdev_aux_add_remove
;
331 ztest_func_t ztest_split_pool
;
332 ztest_func_t ztest_reguid
;
333 ztest_func_t ztest_spa_upgrade
;
334 ztest_func_t ztest_fletcher
;
335 ztest_func_t ztest_fletcher_incr
;
336 ztest_func_t ztest_verify_dnode_bt
;
338 uint64_t zopt_always
= 0ULL * NANOSEC
; /* all the time */
339 uint64_t zopt_incessant
= 1ULL * NANOSEC
/ 10; /* every 1/10 second */
340 uint64_t zopt_often
= 1ULL * NANOSEC
; /* every second */
341 uint64_t zopt_sometimes
= 10ULL * NANOSEC
; /* every 10 seconds */
342 uint64_t zopt_rarely
= 60ULL * NANOSEC
; /* every 60 seconds */
344 #define ZTI_INIT(func, iters, interval) \
345 { .zi_func = (func), \
346 .zi_iters = (iters), \
347 .zi_interval = (interval), \
348 .zi_funcname = # func }
350 ztest_info_t ztest_info
[] = {
351 ZTI_INIT(ztest_dmu_read_write
, 1, &zopt_always
),
352 ZTI_INIT(ztest_dmu_write_parallel
, 10, &zopt_always
),
353 ZTI_INIT(ztest_dmu_object_alloc_free
, 1, &zopt_always
),
354 ZTI_INIT(ztest_dmu_commit_callbacks
, 1, &zopt_always
),
355 ZTI_INIT(ztest_zap
, 30, &zopt_always
),
356 ZTI_INIT(ztest_zap_parallel
, 100, &zopt_always
),
357 ZTI_INIT(ztest_split_pool
, 1, &zopt_always
),
358 ZTI_INIT(ztest_zil_commit
, 1, &zopt_incessant
),
359 ZTI_INIT(ztest_zil_remount
, 1, &zopt_sometimes
),
360 ZTI_INIT(ztest_dmu_read_write_zcopy
, 1, &zopt_often
),
361 ZTI_INIT(ztest_dmu_objset_create_destroy
, 1, &zopt_often
),
362 ZTI_INIT(ztest_dsl_prop_get_set
, 1, &zopt_often
),
363 ZTI_INIT(ztest_spa_prop_get_set
, 1, &zopt_sometimes
),
365 ZTI_INIT(ztest_dmu_prealloc
, 1, &zopt_sometimes
),
367 ZTI_INIT(ztest_fzap
, 1, &zopt_sometimes
),
368 ZTI_INIT(ztest_dmu_snapshot_create_destroy
, 1, &zopt_sometimes
),
369 ZTI_INIT(ztest_spa_create_destroy
, 1, &zopt_sometimes
),
370 ZTI_INIT(ztest_fault_inject
, 1, &zopt_sometimes
),
371 ZTI_INIT(ztest_ddt_repair
, 1, &zopt_sometimes
),
372 ZTI_INIT(ztest_dmu_snapshot_hold
, 1, &zopt_sometimes
),
373 ZTI_INIT(ztest_reguid
, 1, &zopt_rarely
),
374 ZTI_INIT(ztest_spa_rename
, 1, &zopt_rarely
),
375 ZTI_INIT(ztest_scrub
, 1, &zopt_rarely
),
376 ZTI_INIT(ztest_spa_upgrade
, 1, &zopt_rarely
),
377 ZTI_INIT(ztest_dsl_dataset_promote_busy
, 1, &zopt_rarely
),
378 ZTI_INIT(ztest_vdev_attach_detach
, 1, &zopt_sometimes
),
379 ZTI_INIT(ztest_vdev_LUN_growth
, 1, &zopt_rarely
),
380 ZTI_INIT(ztest_vdev_add_remove
, 1, &ztest_opts
.zo_vdevtime
),
381 ZTI_INIT(ztest_vdev_aux_add_remove
, 1, &ztest_opts
.zo_vdevtime
),
382 ZTI_INIT(ztest_fletcher
, 1, &zopt_rarely
),
383 ZTI_INIT(ztest_fletcher_incr
, 1, &zopt_rarely
),
384 ZTI_INIT(ztest_verify_dnode_bt
, 1, &zopt_sometimes
),
387 #define ZTEST_FUNCS (sizeof (ztest_info) / sizeof (ztest_info_t))
390 * The following struct is used to hold a list of uncalled commit callbacks.
391 * The callbacks are ordered by txg number.
393 typedef struct ztest_cb_list
{
394 kmutex_t zcl_callbacks_lock
;
395 list_t zcl_callbacks
;
399 * Stuff we need to share writably between parent and child.
401 typedef struct ztest_shared
{
402 boolean_t zs_do_init
;
403 hrtime_t zs_proc_start
;
404 hrtime_t zs_proc_stop
;
405 hrtime_t zs_thread_start
;
406 hrtime_t zs_thread_stop
;
407 hrtime_t zs_thread_kill
;
408 uint64_t zs_enospc_count
;
409 uint64_t zs_vdev_next_leaf
;
410 uint64_t zs_vdev_aux
;
415 uint64_t zs_metaslab_sz
;
416 uint64_t zs_metaslab_df_alloc_threshold
;
420 #define ID_PARALLEL -1ULL
422 static char ztest_dev_template
[] = "%s/%s.%llua";
423 static char ztest_aux_template
[] = "%s/%s.%s.%llu";
424 ztest_shared_t
*ztest_shared
;
426 static spa_t
*ztest_spa
= NULL
;
427 static ztest_ds_t
*ztest_ds
;
429 static kmutex_t ztest_vdev_lock
;
432 * The ztest_name_lock protects the pool and dataset namespace used by
433 * the individual tests. To modify the namespace, consumers must grab
434 * this lock as writer. Grabbing the lock as reader will ensure that the
435 * namespace does not change while the lock is held.
437 static rwlock_t ztest_name_lock
;
439 static boolean_t ztest_dump_core
= B_TRUE
;
440 static boolean_t ztest_exiting
;
442 /* Global commit callback list */
443 static ztest_cb_list_t zcl
;
444 /* Commit cb delay */
445 static uint64_t zc_min_txg_delay
= UINT64_MAX
;
446 static int zc_cb_counter
= 0;
449 * Minimum number of commit callbacks that need to be registered for us to check
450 * whether the minimum txg delay is acceptable.
452 #define ZTEST_COMMIT_CB_MIN_REG 100
455 * If a number of txgs equal to this threshold have been created after a commit
456 * callback has been registered but not called, then we assume there is an
457 * implementation bug.
459 #define ZTEST_COMMIT_CB_THRESH (TXG_CONCURRENT_STATES + 1000)
461 extern uint64_t metaslab_gang_bang
;
462 extern uint64_t metaslab_df_alloc_threshold
;
465 ZTEST_META_DNODE
= 0,
470 static void usage(boolean_t
) __NORETURN
;
473 * These libumem hooks provide a reasonable set of defaults for the allocator's
474 * debugging facilities.
477 _umem_debug_init(void)
479 return ("default,verbose"); /* $UMEM_DEBUG setting */
483 _umem_logging_init(void)
485 return ("fail,contents"); /* $UMEM_LOGGING setting */
488 #define BACKTRACE_SZ 100
490 static void sig_handler(int signo
)
492 struct sigaction action
;
493 #ifdef __GLIBC__ /* backtrace() is a GNU extension */
495 void *buffer
[BACKTRACE_SZ
];
497 nptrs
= backtrace(buffer
, BACKTRACE_SZ
);
498 backtrace_symbols_fd(buffer
, nptrs
, STDERR_FILENO
);
502 * Restore default action and re-raise signal so SIGSEGV and
503 * SIGABRT can trigger a core dump.
505 action
.sa_handler
= SIG_DFL
;
506 sigemptyset(&action
.sa_mask
);
508 (void) sigaction(signo
, &action
, NULL
);
512 #define FATAL_MSG_SZ 1024
517 fatal(int do_perror
, char *message
, ...)
520 int save_errno
= errno
;
523 (void) fflush(stdout
);
524 buf
= umem_alloc(FATAL_MSG_SZ
, UMEM_NOFAIL
);
526 va_start(args
, message
);
527 (void) sprintf(buf
, "ztest: ");
529 (void) vsprintf(buf
+ strlen(buf
), message
, args
);
532 (void) snprintf(buf
+ strlen(buf
), FATAL_MSG_SZ
- strlen(buf
),
533 ": %s", strerror(save_errno
));
535 (void) fprintf(stderr
, "%s\n", buf
);
536 fatal_msg
= buf
; /* to ease debugging */
543 str2shift(const char *buf
)
545 const char *ends
= "BKMGTPEZ";
550 for (i
= 0; i
< strlen(ends
); i
++) {
551 if (toupper(buf
[0]) == ends
[i
])
554 if (i
== strlen(ends
)) {
555 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n",
559 if (buf
[1] == '\0' || (toupper(buf
[1]) == 'B' && buf
[2] == '\0')) {
562 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n", buf
);
568 nicenumtoull(const char *buf
)
573 val
= strtoull(buf
, &end
, 0);
575 (void) fprintf(stderr
, "ztest: bad numeric value: %s\n", buf
);
577 } else if (end
[0] == '.') {
578 double fval
= strtod(buf
, &end
);
579 fval
*= pow(2, str2shift(end
));
580 if (fval
> UINT64_MAX
) {
581 (void) fprintf(stderr
, "ztest: value too large: %s\n",
585 val
= (uint64_t)fval
;
587 int shift
= str2shift(end
);
588 if (shift
>= 64 || (val
<< shift
) >> shift
!= val
) {
589 (void) fprintf(stderr
, "ztest: value too large: %s\n",
599 usage(boolean_t requested
)
601 const ztest_shared_opts_t
*zo
= &ztest_opts_defaults
;
603 char nice_vdev_size
[10];
604 char nice_gang_bang
[10];
605 FILE *fp
= requested
? stdout
: stderr
;
607 nicenum(zo
->zo_vdev_size
, nice_vdev_size
);
608 nicenum(zo
->zo_metaslab_gang_bang
, nice_gang_bang
);
610 (void) fprintf(fp
, "Usage: %s\n"
611 "\t[-v vdevs (default: %llu)]\n"
612 "\t[-s size_of_each_vdev (default: %s)]\n"
613 "\t[-a alignment_shift (default: %d)] use 0 for random\n"
614 "\t[-m mirror_copies (default: %d)]\n"
615 "\t[-r raidz_disks (default: %d)]\n"
616 "\t[-R raidz_parity (default: %d)]\n"
617 "\t[-d datasets (default: %d)]\n"
618 "\t[-t threads (default: %d)]\n"
619 "\t[-g gang_block_threshold (default: %s)]\n"
620 "\t[-i init_count (default: %d)] initialize pool i times\n"
621 "\t[-k kill_percentage (default: %llu%%)]\n"
622 "\t[-p pool_name (default: %s)]\n"
623 "\t[-f dir (default: %s)] file directory for vdev files\n"
624 "\t[-V] verbose (use multiple times for ever more blather)\n"
625 "\t[-E] use existing pool instead of creating new one\n"
626 "\t[-T time (default: %llu sec)] total run time\n"
627 "\t[-F freezeloops (default: %llu)] max loops in spa_freeze()\n"
628 "\t[-P passtime (default: %llu sec)] time per pass\n"
629 "\t[-B alt_ztest (default: <none>)] alternate ztest path\n"
630 "\t[-h] (print help)\n"
633 (u_longlong_t
)zo
->zo_vdevs
, /* -v */
634 nice_vdev_size
, /* -s */
635 zo
->zo_ashift
, /* -a */
636 zo
->zo_mirrors
, /* -m */
637 zo
->zo_raidz
, /* -r */
638 zo
->zo_raidz_parity
, /* -R */
639 zo
->zo_datasets
, /* -d */
640 zo
->zo_threads
, /* -t */
641 nice_gang_bang
, /* -g */
642 zo
->zo_init
, /* -i */
643 (u_longlong_t
)zo
->zo_killrate
, /* -k */
644 zo
->zo_pool
, /* -p */
646 (u_longlong_t
)zo
->zo_time
, /* -T */
647 (u_longlong_t
)zo
->zo_maxloops
, /* -F */
648 (u_longlong_t
)zo
->zo_passtime
);
649 exit(requested
? 0 : 1);
653 process_options(int argc
, char **argv
)
656 ztest_shared_opts_t
*zo
= &ztest_opts
;
660 char altdir
[MAXNAMELEN
] = { 0 };
662 bcopy(&ztest_opts_defaults
, zo
, sizeof (*zo
));
664 while ((opt
= getopt(argc
, argv
,
665 "v:s:a:m:r:R:d:t:g:i:k:p:f:VET:P:hF:B:")) != EOF
) {
682 value
= nicenumtoull(optarg
);
686 zo
->zo_vdevs
= value
;
689 zo
->zo_vdev_size
= MAX(SPA_MINDEVSIZE
, value
);
692 zo
->zo_ashift
= value
;
695 zo
->zo_mirrors
= value
;
698 zo
->zo_raidz
= MAX(1, value
);
701 zo
->zo_raidz_parity
= MIN(MAX(value
, 1), 3);
704 zo
->zo_datasets
= MAX(1, value
);
707 zo
->zo_threads
= MAX(1, value
);
710 zo
->zo_metaslab_gang_bang
= MAX(SPA_MINBLOCKSIZE
<< 1,
717 zo
->zo_killrate
= value
;
720 (void) strlcpy(zo
->zo_pool
, optarg
,
721 sizeof (zo
->zo_pool
));
724 path
= realpath(optarg
, NULL
);
726 (void) fprintf(stderr
, "error: %s: %s\n",
727 optarg
, strerror(errno
));
730 (void) strlcpy(zo
->zo_dir
, path
,
731 sizeof (zo
->zo_dir
));
745 zo
->zo_passtime
= MAX(1, value
);
748 zo
->zo_maxloops
= MAX(1, value
);
751 (void) strlcpy(altdir
, optarg
, sizeof (altdir
));
763 zo
->zo_raidz_parity
= MIN(zo
->zo_raidz_parity
, zo
->zo_raidz
- 1);
766 (zo
->zo_vdevs
> 0 ? zo
->zo_time
* NANOSEC
/ zo
->zo_vdevs
:
769 if (strlen(altdir
) > 0) {
777 cmd
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
778 realaltdir
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
780 VERIFY(NULL
!= realpath(getexecname(), cmd
));
781 if (0 != access(altdir
, F_OK
)) {
782 ztest_dump_core
= B_FALSE
;
783 fatal(B_TRUE
, "invalid alternate ztest path: %s",
786 VERIFY(NULL
!= realpath(altdir
, realaltdir
));
789 * 'cmd' should be of the form "<anything>/usr/bin/<isa>/ztest".
790 * We want to extract <isa> to determine if we should use
791 * 32 or 64 bit binaries.
793 bin
= strstr(cmd
, "/usr/bin/");
794 ztest
= strstr(bin
, "/ztest");
796 isalen
= ztest
- isa
;
797 (void) snprintf(zo
->zo_alt_ztest
, sizeof (zo
->zo_alt_ztest
),
798 "%s/usr/bin/%.*s/ztest", realaltdir
, isalen
, isa
);
799 (void) snprintf(zo
->zo_alt_libpath
, sizeof (zo
->zo_alt_libpath
),
800 "%s/usr/lib/%.*s", realaltdir
, isalen
, isa
);
802 if (0 != access(zo
->zo_alt_ztest
, X_OK
)) {
803 ztest_dump_core
= B_FALSE
;
804 fatal(B_TRUE
, "invalid alternate ztest: %s",
806 } else if (0 != access(zo
->zo_alt_libpath
, X_OK
)) {
807 ztest_dump_core
= B_FALSE
;
808 fatal(B_TRUE
, "invalid alternate lib directory %s",
812 umem_free(cmd
, MAXPATHLEN
);
813 umem_free(realaltdir
, MAXPATHLEN
);
818 ztest_kill(ztest_shared_t
*zs
)
820 zs
->zs_alloc
= metaslab_class_get_alloc(spa_normal_class(ztest_spa
));
821 zs
->zs_space
= metaslab_class_get_space(spa_normal_class(ztest_spa
));
824 * Before we kill off ztest, make sure that the config is updated.
825 * See comment above spa_config_sync().
827 mutex_enter(&spa_namespace_lock
);
828 spa_config_sync(ztest_spa
, B_FALSE
, B_FALSE
);
829 mutex_exit(&spa_namespace_lock
);
831 (void) kill(getpid(), SIGKILL
);
835 ztest_random(uint64_t range
)
839 ASSERT3S(ztest_fd_rand
, >=, 0);
844 if (read(ztest_fd_rand
, &r
, sizeof (r
)) != sizeof (r
))
845 fatal(1, "short read from /dev/urandom");
852 ztest_record_enospc(const char *s
)
854 ztest_shared
->zs_enospc_count
++;
858 ztest_get_ashift(void)
860 if (ztest_opts
.zo_ashift
== 0)
861 return (SPA_MINBLOCKSHIFT
+ ztest_random(5));
862 return (ztest_opts
.zo_ashift
);
866 make_vdev_file(char *path
, char *aux
, char *pool
, size_t size
, uint64_t ashift
)
872 pathbuf
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
875 ashift
= ztest_get_ashift();
881 vdev
= ztest_shared
->zs_vdev_aux
;
882 (void) snprintf(path
, MAXPATHLEN
,
883 ztest_aux_template
, ztest_opts
.zo_dir
,
884 pool
== NULL
? ztest_opts
.zo_pool
: pool
,
887 vdev
= ztest_shared
->zs_vdev_next_leaf
++;
888 (void) snprintf(path
, MAXPATHLEN
,
889 ztest_dev_template
, ztest_opts
.zo_dir
,
890 pool
== NULL
? ztest_opts
.zo_pool
: pool
, vdev
);
895 int fd
= open(path
, O_RDWR
| O_CREAT
| O_TRUNC
, 0666);
897 fatal(1, "can't open %s", path
);
898 if (ftruncate(fd
, size
) != 0)
899 fatal(1, "can't ftruncate %s", path
);
903 VERIFY(nvlist_alloc(&file
, NV_UNIQUE_NAME
, 0) == 0);
904 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_FILE
) == 0);
905 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_PATH
, path
) == 0);
906 VERIFY(nvlist_add_uint64(file
, ZPOOL_CONFIG_ASHIFT
, ashift
) == 0);
907 umem_free(pathbuf
, MAXPATHLEN
);
913 make_vdev_raidz(char *path
, char *aux
, char *pool
, size_t size
,
914 uint64_t ashift
, int r
)
916 nvlist_t
*raidz
, **child
;
920 return (make_vdev_file(path
, aux
, pool
, size
, ashift
));
921 child
= umem_alloc(r
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
923 for (c
= 0; c
< r
; c
++)
924 child
[c
] = make_vdev_file(path
, aux
, pool
, size
, ashift
);
926 VERIFY(nvlist_alloc(&raidz
, NV_UNIQUE_NAME
, 0) == 0);
927 VERIFY(nvlist_add_string(raidz
, ZPOOL_CONFIG_TYPE
,
928 VDEV_TYPE_RAIDZ
) == 0);
929 VERIFY(nvlist_add_uint64(raidz
, ZPOOL_CONFIG_NPARITY
,
930 ztest_opts
.zo_raidz_parity
) == 0);
931 VERIFY(nvlist_add_nvlist_array(raidz
, ZPOOL_CONFIG_CHILDREN
,
934 for (c
= 0; c
< r
; c
++)
935 nvlist_free(child
[c
]);
937 umem_free(child
, r
* sizeof (nvlist_t
*));
943 make_vdev_mirror(char *path
, char *aux
, char *pool
, size_t size
,
944 uint64_t ashift
, int r
, int m
)
946 nvlist_t
*mirror
, **child
;
950 return (make_vdev_raidz(path
, aux
, pool
, size
, ashift
, r
));
952 child
= umem_alloc(m
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
954 for (c
= 0; c
< m
; c
++)
955 child
[c
] = make_vdev_raidz(path
, aux
, pool
, size
, ashift
, r
);
957 VERIFY(nvlist_alloc(&mirror
, NV_UNIQUE_NAME
, 0) == 0);
958 VERIFY(nvlist_add_string(mirror
, ZPOOL_CONFIG_TYPE
,
959 VDEV_TYPE_MIRROR
) == 0);
960 VERIFY(nvlist_add_nvlist_array(mirror
, ZPOOL_CONFIG_CHILDREN
,
963 for (c
= 0; c
< m
; c
++)
964 nvlist_free(child
[c
]);
966 umem_free(child
, m
* sizeof (nvlist_t
*));
972 make_vdev_root(char *path
, char *aux
, char *pool
, size_t size
, uint64_t ashift
,
973 int log
, int r
, int m
, int t
)
975 nvlist_t
*root
, **child
;
980 child
= umem_alloc(t
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
982 for (c
= 0; c
< t
; c
++) {
983 child
[c
] = make_vdev_mirror(path
, aux
, pool
, size
, ashift
,
985 VERIFY(nvlist_add_uint64(child
[c
], ZPOOL_CONFIG_IS_LOG
,
989 VERIFY(nvlist_alloc(&root
, NV_UNIQUE_NAME
, 0) == 0);
990 VERIFY(nvlist_add_string(root
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_ROOT
) == 0);
991 VERIFY(nvlist_add_nvlist_array(root
, aux
? aux
: ZPOOL_CONFIG_CHILDREN
,
994 for (c
= 0; c
< t
; c
++)
995 nvlist_free(child
[c
]);
997 umem_free(child
, t
* sizeof (nvlist_t
*));
1003 * Find a random spa version. Returns back a random spa version in the
1004 * range [initial_version, SPA_VERSION_FEATURES].
1007 ztest_random_spa_version(uint64_t initial_version
)
1009 uint64_t version
= initial_version
;
1011 if (version
<= SPA_VERSION_BEFORE_FEATURES
) {
1013 ztest_random(SPA_VERSION_BEFORE_FEATURES
- version
+ 1);
1016 if (version
> SPA_VERSION_BEFORE_FEATURES
)
1017 version
= SPA_VERSION_FEATURES
;
1019 ASSERT(SPA_VERSION_IS_SUPPORTED(version
));
1024 ztest_random_blocksize(void)
1027 * Choose a block size >= the ashift.
1028 * If the SPA supports new MAXBLOCKSIZE, test up to 1MB blocks.
1030 int maxbs
= SPA_OLD_MAXBLOCKSHIFT
;
1031 if (spa_maxblocksize(ztest_spa
) == SPA_MAXBLOCKSIZE
)
1033 uint64_t block_shift
=
1034 ztest_random(maxbs
- ztest_spa
->spa_max_ashift
+ 1);
1035 return (1 << (SPA_MINBLOCKSHIFT
+ block_shift
));
1039 ztest_random_dnodesize(void)
1042 int max_slots
= spa_maxdnodesize(ztest_spa
) >> DNODE_SHIFT
;
1044 if (max_slots
== DNODE_MIN_SLOTS
)
1045 return (DNODE_MIN_SIZE
);
1048 * Weight the random distribution more heavily toward smaller
1049 * dnode sizes since that is more likely to reflect real-world
1052 ASSERT3U(max_slots
, >, 4);
1053 switch (ztest_random(10)) {
1055 slots
= 5 + ztest_random(max_slots
- 4);
1058 slots
= 2 + ztest_random(3);
1065 return (slots
<< DNODE_SHIFT
);
1069 ztest_random_ibshift(void)
1071 return (DN_MIN_INDBLKSHIFT
+
1072 ztest_random(DN_MAX_INDBLKSHIFT
- DN_MIN_INDBLKSHIFT
+ 1));
1076 ztest_random_vdev_top(spa_t
*spa
, boolean_t log_ok
)
1079 vdev_t
*rvd
= spa
->spa_root_vdev
;
1082 ASSERT(spa_config_held(spa
, SCL_ALL
, RW_READER
) != 0);
1085 top
= ztest_random(rvd
->vdev_children
);
1086 tvd
= rvd
->vdev_child
[top
];
1087 } while (tvd
->vdev_ishole
|| (tvd
->vdev_islog
&& !log_ok
) ||
1088 tvd
->vdev_mg
== NULL
|| tvd
->vdev_mg
->mg_class
== NULL
);
1094 ztest_random_dsl_prop(zfs_prop_t prop
)
1099 value
= zfs_prop_random_value(prop
, ztest_random(-1ULL));
1100 } while (prop
== ZFS_PROP_CHECKSUM
&& value
== ZIO_CHECKSUM_OFF
);
1106 ztest_dsl_prop_set_uint64(char *osname
, zfs_prop_t prop
, uint64_t value
,
1109 const char *propname
= zfs_prop_to_name(prop
);
1110 const char *valname
;
1115 error
= dsl_prop_set_int(osname
, propname
,
1116 (inherit
? ZPROP_SRC_NONE
: ZPROP_SRC_LOCAL
), value
);
1118 if (error
== ENOSPC
) {
1119 ztest_record_enospc(FTAG
);
1124 setpoint
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
1125 VERIFY0(dsl_prop_get_integer(osname
, propname
, &curval
, setpoint
));
1127 if (ztest_opts
.zo_verbose
>= 6) {
1130 err
= zfs_prop_index_to_string(prop
, curval
, &valname
);
1132 (void) printf("%s %s = %llu at '%s'\n",
1133 osname
, propname
, (unsigned long long)curval
,
1136 (void) printf("%s %s = %s at '%s'\n",
1137 osname
, propname
, valname
, setpoint
);
1139 umem_free(setpoint
, MAXPATHLEN
);
1145 ztest_spa_prop_set_uint64(zpool_prop_t prop
, uint64_t value
)
1147 spa_t
*spa
= ztest_spa
;
1148 nvlist_t
*props
= NULL
;
1151 VERIFY(nvlist_alloc(&props
, NV_UNIQUE_NAME
, 0) == 0);
1152 VERIFY(nvlist_add_uint64(props
, zpool_prop_to_name(prop
), value
) == 0);
1154 error
= spa_prop_set(spa
, props
);
1158 if (error
== ENOSPC
) {
1159 ztest_record_enospc(FTAG
);
1169 * Object and range lock mechanics
1172 list_node_t z_lnode
;
1173 refcount_t z_refcnt
;
1175 zfs_rlock_t z_range_lock
;
1180 ztest_znode_t
*z_ztznode
;
1183 static ztest_znode_t
*
1184 ztest_znode_init(uint64_t object
)
1186 ztest_znode_t
*zp
= umem_alloc(sizeof (*zp
), UMEM_NOFAIL
);
1188 list_link_init(&zp
->z_lnode
);
1189 refcount_create(&zp
->z_refcnt
);
1190 zp
->z_object
= object
;
1191 zfs_rlock_init(&zp
->z_range_lock
);
1197 ztest_znode_fini(ztest_znode_t
*zp
)
1199 ASSERT(refcount_is_zero(&zp
->z_refcnt
));
1200 zfs_rlock_destroy(&zp
->z_range_lock
);
1202 refcount_destroy(&zp
->z_refcnt
);
1203 list_link_init(&zp
->z_lnode
);
1204 umem_free(zp
, sizeof (*zp
));
1208 ztest_zll_init(zll_t
*zll
)
1210 mutex_init(&zll
->z_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
1211 list_create(&zll
->z_list
, sizeof (ztest_znode_t
),
1212 offsetof(ztest_znode_t
, z_lnode
));
1216 ztest_zll_destroy(zll_t
*zll
)
1218 list_destroy(&zll
->z_list
);
1219 mutex_destroy(&zll
->z_lock
);
1222 #define RL_TAG "range_lock"
1223 static ztest_znode_t
*
1224 ztest_znode_get(ztest_ds_t
*zd
, uint64_t object
)
1226 zll_t
*zll
= &zd
->zd_range_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1227 ztest_znode_t
*zp
= NULL
;
1228 mutex_enter(&zll
->z_lock
);
1229 for (zp
= list_head(&zll
->z_list
); (zp
);
1230 zp
= list_next(&zll
->z_list
, zp
)) {
1231 if (zp
->z_object
== object
) {
1232 refcount_add(&zp
->z_refcnt
, RL_TAG
);
1237 zp
= ztest_znode_init(object
);
1238 refcount_add(&zp
->z_refcnt
, RL_TAG
);
1239 list_insert_head(&zll
->z_list
, zp
);
1241 mutex_exit(&zll
->z_lock
);
1246 ztest_znode_put(ztest_ds_t
*zd
, ztest_znode_t
*zp
)
1249 ASSERT3U(zp
->z_object
, !=, 0);
1250 zll
= &zd
->zd_range_lock
[zp
->z_object
& (ZTEST_OBJECT_LOCKS
- 1)];
1251 mutex_enter(&zll
->z_lock
);
1252 refcount_remove(&zp
->z_refcnt
, RL_TAG
);
1253 if (refcount_is_zero(&zp
->z_refcnt
)) {
1254 list_remove(&zll
->z_list
, zp
);
1255 ztest_znode_fini(zp
);
1257 mutex_exit(&zll
->z_lock
);
1262 ztest_rll_init(rll_t
*rll
)
1264 rll
->rll_writer
= NULL
;
1265 rll
->rll_readers
= 0;
1266 mutex_init(&rll
->rll_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
1267 cv_init(&rll
->rll_cv
, NULL
, CV_DEFAULT
, NULL
);
1271 ztest_rll_destroy(rll_t
*rll
)
1273 ASSERT(rll
->rll_writer
== NULL
);
1274 ASSERT(rll
->rll_readers
== 0);
1275 mutex_destroy(&rll
->rll_lock
);
1276 cv_destroy(&rll
->rll_cv
);
1280 ztest_rll_lock(rll_t
*rll
, rl_type_t type
)
1282 mutex_enter(&rll
->rll_lock
);
1284 if (type
== RL_READER
) {
1285 while (rll
->rll_writer
!= NULL
)
1286 (void) cv_wait(&rll
->rll_cv
, &rll
->rll_lock
);
1289 while (rll
->rll_writer
!= NULL
|| rll
->rll_readers
)
1290 (void) cv_wait(&rll
->rll_cv
, &rll
->rll_lock
);
1291 rll
->rll_writer
= curthread
;
1294 mutex_exit(&rll
->rll_lock
);
1298 ztest_rll_unlock(rll_t
*rll
)
1300 mutex_enter(&rll
->rll_lock
);
1302 if (rll
->rll_writer
) {
1303 ASSERT(rll
->rll_readers
== 0);
1304 rll
->rll_writer
= NULL
;
1306 ASSERT(rll
->rll_readers
!= 0);
1307 ASSERT(rll
->rll_writer
== NULL
);
1311 if (rll
->rll_writer
== NULL
&& rll
->rll_readers
== 0)
1312 cv_broadcast(&rll
->rll_cv
);
1314 mutex_exit(&rll
->rll_lock
);
1318 ztest_object_lock(ztest_ds_t
*zd
, uint64_t object
, rl_type_t type
)
1320 rll_t
*rll
= &zd
->zd_object_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1322 ztest_rll_lock(rll
, type
);
1326 ztest_object_unlock(ztest_ds_t
*zd
, uint64_t object
)
1328 rll_t
*rll
= &zd
->zd_object_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1330 ztest_rll_unlock(rll
);
1333 static ztest_zrl_t
*
1334 ztest_zrl_init(rl_t
*rl
, ztest_znode_t
*zp
)
1336 ztest_zrl_t
*zrl
= umem_alloc(sizeof (*zrl
), UMEM_NOFAIL
);
1338 zrl
->z_ztznode
= zp
;
1343 ztest_zrl_fini(ztest_zrl_t
*zrl
)
1345 umem_free(zrl
, sizeof (*zrl
));
1348 static ztest_zrl_t
*
1349 ztest_range_lock(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
,
1350 uint64_t size
, rl_type_t type
)
1352 ztest_znode_t
*zp
= ztest_znode_get(zd
, object
);
1353 rl_t
*rl
= zfs_range_lock(&zp
->z_range_lock
, offset
,
1355 return (ztest_zrl_init(rl
, zp
));
1359 ztest_range_unlock(ztest_ds_t
*zd
, ztest_zrl_t
*zrl
)
1361 zfs_range_unlock(zrl
->z_rl
);
1362 ztest_znode_put(zd
, zrl
->z_ztznode
);
1363 ztest_zrl_fini(zrl
);
1367 ztest_zd_init(ztest_ds_t
*zd
, ztest_shared_ds_t
*szd
, objset_t
*os
)
1370 zd
->zd_zilog
= dmu_objset_zil(os
);
1371 zd
->zd_shared
= szd
;
1372 dmu_objset_name(os
, zd
->zd_name
);
1375 if (zd
->zd_shared
!= NULL
)
1376 zd
->zd_shared
->zd_seq
= 0;
1378 VERIFY(rwlock_init(&zd
->zd_zilog_lock
, USYNC_THREAD
, NULL
) == 0);
1379 mutex_init(&zd
->zd_dirobj_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
1381 for (l
= 0; l
< ZTEST_OBJECT_LOCKS
; l
++)
1382 ztest_rll_init(&zd
->zd_object_lock
[l
]);
1384 for (l
= 0; l
< ZTEST_RANGE_LOCKS
; l
++)
1385 ztest_zll_init(&zd
->zd_range_lock
[l
]);
1389 ztest_zd_fini(ztest_ds_t
*zd
)
1393 mutex_destroy(&zd
->zd_dirobj_lock
);
1394 (void) rwlock_destroy(&zd
->zd_zilog_lock
);
1396 for (l
= 0; l
< ZTEST_OBJECT_LOCKS
; l
++)
1397 ztest_rll_destroy(&zd
->zd_object_lock
[l
]);
1399 for (l
= 0; l
< ZTEST_RANGE_LOCKS
; l
++)
1400 ztest_zll_destroy(&zd
->zd_range_lock
[l
]);
1403 #define TXG_MIGHTWAIT (ztest_random(10) == 0 ? TXG_NOWAIT : TXG_WAIT)
1406 ztest_tx_assign(dmu_tx_t
*tx
, uint64_t txg_how
, const char *tag
)
1412 * Attempt to assign tx to some transaction group.
1414 error
= dmu_tx_assign(tx
, txg_how
);
1416 if (error
== ERESTART
) {
1417 ASSERT(txg_how
== TXG_NOWAIT
);
1420 ASSERT3U(error
, ==, ENOSPC
);
1421 ztest_record_enospc(tag
);
1426 txg
= dmu_tx_get_txg(tx
);
1432 ztest_pattern_set(void *buf
, uint64_t size
, uint64_t value
)
1435 uint64_t *ip_end
= (uint64_t *)((uintptr_t)buf
+ (uintptr_t)size
);
1443 ztest_pattern_match(void *buf
, uint64_t size
, uint64_t value
)
1446 uint64_t *ip_end
= (uint64_t *)((uintptr_t)buf
+ (uintptr_t)size
);
1450 diff
|= (value
- *ip
++);
1457 ztest_bt_generate(ztest_block_tag_t
*bt
, objset_t
*os
, uint64_t object
,
1458 uint64_t dnodesize
, uint64_t offset
, uint64_t gen
, uint64_t txg
,
1461 bt
->bt_magic
= BT_MAGIC
;
1462 bt
->bt_objset
= dmu_objset_id(os
);
1463 bt
->bt_object
= object
;
1464 bt
->bt_dnodesize
= dnodesize
;
1465 bt
->bt_offset
= offset
;
1468 bt
->bt_crtxg
= crtxg
;
1472 ztest_bt_verify(ztest_block_tag_t
*bt
, objset_t
*os
, uint64_t object
,
1473 uint64_t dnodesize
, uint64_t offset
, uint64_t gen
, uint64_t txg
,
1476 ASSERT3U(bt
->bt_magic
, ==, BT_MAGIC
);
1477 ASSERT3U(bt
->bt_objset
, ==, dmu_objset_id(os
));
1478 ASSERT3U(bt
->bt_object
, ==, object
);
1479 ASSERT3U(bt
->bt_dnodesize
, ==, dnodesize
);
1480 ASSERT3U(bt
->bt_offset
, ==, offset
);
1481 ASSERT3U(bt
->bt_gen
, <=, gen
);
1482 ASSERT3U(bt
->bt_txg
, <=, txg
);
1483 ASSERT3U(bt
->bt_crtxg
, ==, crtxg
);
1486 static ztest_block_tag_t
*
1487 ztest_bt_bonus(dmu_buf_t
*db
)
1489 dmu_object_info_t doi
;
1490 ztest_block_tag_t
*bt
;
1492 dmu_object_info_from_db(db
, &doi
);
1493 ASSERT3U(doi
.doi_bonus_size
, <=, db
->db_size
);
1494 ASSERT3U(doi
.doi_bonus_size
, >=, sizeof (*bt
));
1495 bt
= (void *)((char *)db
->db_data
+ doi
.doi_bonus_size
- sizeof (*bt
));
1501 * Generate a token to fill up unused bonus buffer space. Try to make
1502 * it unique to the object, generation, and offset to verify that data
1503 * is not getting overwritten by data from other dnodes.
1505 #define ZTEST_BONUS_FILL_TOKEN(obj, ds, gen, offset) \
1506 (((ds) << 48) | ((gen) << 32) | ((obj) << 8) | (offset))
1509 * Fill up the unused bonus buffer region before the block tag with a
1510 * verifiable pattern. Filling the whole bonus area with non-zero data
1511 * helps ensure that all dnode traversal code properly skips the
1512 * interior regions of large dnodes.
1515 ztest_fill_unused_bonus(dmu_buf_t
*db
, void *end
, uint64_t obj
,
1516 objset_t
*os
, uint64_t gen
)
1520 ASSERT(IS_P2ALIGNED((char *)end
- (char *)db
->db_data
, 8));
1522 for (bonusp
= db
->db_data
; bonusp
< (uint64_t *)end
; bonusp
++) {
1523 uint64_t token
= ZTEST_BONUS_FILL_TOKEN(obj
, dmu_objset_id(os
),
1524 gen
, bonusp
- (uint64_t *)db
->db_data
);
1530 * Verify that the unused area of a bonus buffer is filled with the
1534 ztest_verify_unused_bonus(dmu_buf_t
*db
, void *end
, uint64_t obj
,
1535 objset_t
*os
, uint64_t gen
)
1539 for (bonusp
= db
->db_data
; bonusp
< (uint64_t *)end
; bonusp
++) {
1540 uint64_t token
= ZTEST_BONUS_FILL_TOKEN(obj
, dmu_objset_id(os
),
1541 gen
, bonusp
- (uint64_t *)db
->db_data
);
1542 VERIFY3U(*bonusp
, ==, token
);
1550 #define lrz_type lr_mode
1551 #define lrz_blocksize lr_uid
1552 #define lrz_ibshift lr_gid
1553 #define lrz_bonustype lr_rdev
1554 #define lrz_dnodesize lr_crtime[1]
1557 ztest_log_create(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_create_t
*lr
)
1559 char *name
= (void *)(lr
+ 1); /* name follows lr */
1560 size_t namesize
= strlen(name
) + 1;
1563 if (zil_replaying(zd
->zd_zilog
, tx
))
1566 itx
= zil_itx_create(TX_CREATE
, sizeof (*lr
) + namesize
);
1567 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1568 sizeof (*lr
) + namesize
- sizeof (lr_t
));
1570 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1574 ztest_log_remove(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_remove_t
*lr
, uint64_t object
)
1576 char *name
= (void *)(lr
+ 1); /* name follows lr */
1577 size_t namesize
= strlen(name
) + 1;
1580 if (zil_replaying(zd
->zd_zilog
, tx
))
1583 itx
= zil_itx_create(TX_REMOVE
, sizeof (*lr
) + namesize
);
1584 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1585 sizeof (*lr
) + namesize
- sizeof (lr_t
));
1587 itx
->itx_oid
= object
;
1588 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1592 ztest_log_write(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_write_t
*lr
)
1595 itx_wr_state_t write_state
= ztest_random(WR_NUM_STATES
);
1597 if (zil_replaying(zd
->zd_zilog
, tx
))
1600 if (lr
->lr_length
> ZIL_MAX_LOG_DATA
)
1601 write_state
= WR_INDIRECT
;
1603 itx
= zil_itx_create(TX_WRITE
,
1604 sizeof (*lr
) + (write_state
== WR_COPIED
? lr
->lr_length
: 0));
1606 if (write_state
== WR_COPIED
&&
1607 dmu_read(zd
->zd_os
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
,
1608 ((lr_write_t
*)&itx
->itx_lr
) + 1, DMU_READ_NO_PREFETCH
) != 0) {
1609 zil_itx_destroy(itx
);
1610 itx
= zil_itx_create(TX_WRITE
, sizeof (*lr
));
1611 write_state
= WR_NEED_COPY
;
1613 itx
->itx_private
= zd
;
1614 itx
->itx_wr_state
= write_state
;
1615 itx
->itx_sync
= (ztest_random(8) == 0);
1616 itx
->itx_sod
+= (write_state
== WR_NEED_COPY
? lr
->lr_length
: 0);
1618 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1619 sizeof (*lr
) - sizeof (lr_t
));
1621 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1625 ztest_log_truncate(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_truncate_t
*lr
)
1629 if (zil_replaying(zd
->zd_zilog
, tx
))
1632 itx
= zil_itx_create(TX_TRUNCATE
, sizeof (*lr
));
1633 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1634 sizeof (*lr
) - sizeof (lr_t
));
1636 itx
->itx_sync
= B_FALSE
;
1637 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1641 ztest_log_setattr(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_setattr_t
*lr
)
1645 if (zil_replaying(zd
->zd_zilog
, tx
))
1648 itx
= zil_itx_create(TX_SETATTR
, sizeof (*lr
));
1649 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1650 sizeof (*lr
) - sizeof (lr_t
));
1652 itx
->itx_sync
= B_FALSE
;
1653 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1660 ztest_replay_create(ztest_ds_t
*zd
, lr_create_t
*lr
, boolean_t byteswap
)
1662 char *name
= (void *)(lr
+ 1); /* name follows lr */
1663 objset_t
*os
= zd
->zd_os
;
1664 ztest_block_tag_t
*bbt
;
1672 byteswap_uint64_array(lr
, sizeof (*lr
));
1674 ASSERT(lr
->lr_doid
== ZTEST_DIROBJ
);
1675 ASSERT(name
[0] != '\0');
1677 tx
= dmu_tx_create(os
);
1679 dmu_tx_hold_zap(tx
, lr
->lr_doid
, B_TRUE
, name
);
1681 if (lr
->lrz_type
== DMU_OT_ZAP_OTHER
) {
1682 dmu_tx_hold_zap(tx
, DMU_NEW_OBJECT
, B_TRUE
, NULL
);
1684 dmu_tx_hold_bonus(tx
, DMU_NEW_OBJECT
);
1687 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1691 ASSERT(dmu_objset_zil(os
)->zl_replay
== !!lr
->lr_foid
);
1692 bonuslen
= DN_BONUS_SIZE(lr
->lrz_dnodesize
);
1694 if (lr
->lrz_type
== DMU_OT_ZAP_OTHER
) {
1695 if (lr
->lr_foid
== 0) {
1696 lr
->lr_foid
= zap_create_dnsize(os
,
1697 lr
->lrz_type
, lr
->lrz_bonustype
,
1698 bonuslen
, lr
->lrz_dnodesize
, tx
);
1700 error
= zap_create_claim_dnsize(os
, lr
->lr_foid
,
1701 lr
->lrz_type
, lr
->lrz_bonustype
,
1702 bonuslen
, lr
->lrz_dnodesize
, tx
);
1705 if (lr
->lr_foid
== 0) {
1706 lr
->lr_foid
= dmu_object_alloc_dnsize(os
,
1707 lr
->lrz_type
, 0, lr
->lrz_bonustype
,
1708 bonuslen
, lr
->lrz_dnodesize
, tx
);
1710 error
= dmu_object_claim_dnsize(os
, lr
->lr_foid
,
1711 lr
->lrz_type
, 0, lr
->lrz_bonustype
,
1712 bonuslen
, lr
->lrz_dnodesize
, tx
);
1717 ASSERT3U(error
, ==, EEXIST
);
1718 ASSERT(zd
->zd_zilog
->zl_replay
);
1723 ASSERT(lr
->lr_foid
!= 0);
1725 if (lr
->lrz_type
!= DMU_OT_ZAP_OTHER
)
1726 VERIFY3U(0, ==, dmu_object_set_blocksize(os
, lr
->lr_foid
,
1727 lr
->lrz_blocksize
, lr
->lrz_ibshift
, tx
));
1729 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1730 bbt
= ztest_bt_bonus(db
);
1731 dmu_buf_will_dirty(db
, tx
);
1732 ztest_bt_generate(bbt
, os
, lr
->lr_foid
, lr
->lrz_dnodesize
, -1ULL,
1733 lr
->lr_gen
, txg
, txg
);
1734 ztest_fill_unused_bonus(db
, bbt
, lr
->lr_foid
, os
, lr
->lr_gen
);
1735 dmu_buf_rele(db
, FTAG
);
1737 VERIFY3U(0, ==, zap_add(os
, lr
->lr_doid
, name
, sizeof (uint64_t), 1,
1740 (void) ztest_log_create(zd
, tx
, lr
);
1748 ztest_replay_remove(ztest_ds_t
*zd
, lr_remove_t
*lr
, boolean_t byteswap
)
1750 char *name
= (void *)(lr
+ 1); /* name follows lr */
1751 objset_t
*os
= zd
->zd_os
;
1752 dmu_object_info_t doi
;
1754 uint64_t object
, txg
;
1757 byteswap_uint64_array(lr
, sizeof (*lr
));
1759 ASSERT(lr
->lr_doid
== ZTEST_DIROBJ
);
1760 ASSERT(name
[0] != '\0');
1763 zap_lookup(os
, lr
->lr_doid
, name
, sizeof (object
), 1, &object
));
1764 ASSERT(object
!= 0);
1766 ztest_object_lock(zd
, object
, RL_WRITER
);
1768 VERIFY3U(0, ==, dmu_object_info(os
, object
, &doi
));
1770 tx
= dmu_tx_create(os
);
1772 dmu_tx_hold_zap(tx
, lr
->lr_doid
, B_FALSE
, name
);
1773 dmu_tx_hold_free(tx
, object
, 0, DMU_OBJECT_END
);
1775 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1777 ztest_object_unlock(zd
, object
);
1781 if (doi
.doi_type
== DMU_OT_ZAP_OTHER
) {
1782 VERIFY3U(0, ==, zap_destroy(os
, object
, tx
));
1784 VERIFY3U(0, ==, dmu_object_free(os
, object
, tx
));
1787 VERIFY3U(0, ==, zap_remove(os
, lr
->lr_doid
, name
, tx
));
1789 (void) ztest_log_remove(zd
, tx
, lr
, object
);
1793 ztest_object_unlock(zd
, object
);
1799 ztest_replay_write(ztest_ds_t
*zd
, lr_write_t
*lr
, boolean_t byteswap
)
1801 objset_t
*os
= zd
->zd_os
;
1802 void *data
= lr
+ 1; /* data follows lr */
1803 uint64_t offset
, length
;
1804 ztest_block_tag_t
*bt
= data
;
1805 ztest_block_tag_t
*bbt
;
1806 uint64_t gen
, txg
, lrtxg
, crtxg
;
1807 dmu_object_info_t doi
;
1810 arc_buf_t
*abuf
= NULL
;
1814 byteswap_uint64_array(lr
, sizeof (*lr
));
1816 offset
= lr
->lr_offset
;
1817 length
= lr
->lr_length
;
1819 /* If it's a dmu_sync() block, write the whole block */
1820 if (lr
->lr_common
.lrc_reclen
== sizeof (lr_write_t
)) {
1821 uint64_t blocksize
= BP_GET_LSIZE(&lr
->lr_blkptr
);
1822 if (length
< blocksize
) {
1823 offset
-= offset
% blocksize
;
1828 if (bt
->bt_magic
== BSWAP_64(BT_MAGIC
))
1829 byteswap_uint64_array(bt
, sizeof (*bt
));
1831 if (bt
->bt_magic
!= BT_MAGIC
)
1834 ztest_object_lock(zd
, lr
->lr_foid
, RL_READER
);
1835 rl
= ztest_range_lock(zd
, lr
->lr_foid
, offset
, length
, RL_WRITER
);
1837 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1839 dmu_object_info_from_db(db
, &doi
);
1841 bbt
= ztest_bt_bonus(db
);
1842 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1844 crtxg
= bbt
->bt_crtxg
;
1845 lrtxg
= lr
->lr_common
.lrc_txg
;
1847 tx
= dmu_tx_create(os
);
1849 dmu_tx_hold_write(tx
, lr
->lr_foid
, offset
, length
);
1851 if (ztest_random(8) == 0 && length
== doi
.doi_data_block_size
&&
1852 P2PHASE(offset
, length
) == 0)
1853 abuf
= dmu_request_arcbuf(db
, length
);
1855 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1858 dmu_return_arcbuf(abuf
);
1859 dmu_buf_rele(db
, FTAG
);
1860 ztest_range_unlock(zd
, rl
);
1861 ztest_object_unlock(zd
, lr
->lr_foid
);
1867 * Usually, verify the old data before writing new data --
1868 * but not always, because we also want to verify correct
1869 * behavior when the data was not recently read into cache.
1871 ASSERT(offset
% doi
.doi_data_block_size
== 0);
1872 if (ztest_random(4) != 0) {
1873 int prefetch
= ztest_random(2) ?
1874 DMU_READ_PREFETCH
: DMU_READ_NO_PREFETCH
;
1875 ztest_block_tag_t rbt
;
1877 VERIFY(dmu_read(os
, lr
->lr_foid
, offset
,
1878 sizeof (rbt
), &rbt
, prefetch
) == 0);
1879 if (rbt
.bt_magic
== BT_MAGIC
) {
1880 ztest_bt_verify(&rbt
, os
, lr
->lr_foid
, 0,
1881 offset
, gen
, txg
, crtxg
);
1886 * Writes can appear to be newer than the bonus buffer because
1887 * the ztest_get_data() callback does a dmu_read() of the
1888 * open-context data, which may be different than the data
1889 * as it was when the write was generated.
1891 if (zd
->zd_zilog
->zl_replay
) {
1892 ztest_bt_verify(bt
, os
, lr
->lr_foid
, 0, offset
,
1893 MAX(gen
, bt
->bt_gen
), MAX(txg
, lrtxg
),
1898 * Set the bt's gen/txg to the bonus buffer's gen/txg
1899 * so that all of the usual ASSERTs will work.
1901 ztest_bt_generate(bt
, os
, lr
->lr_foid
, 0, offset
, gen
, txg
,
1906 dmu_write(os
, lr
->lr_foid
, offset
, length
, data
, tx
);
1908 bcopy(data
, abuf
->b_data
, length
);
1909 dmu_assign_arcbuf(db
, offset
, abuf
, tx
);
1912 (void) ztest_log_write(zd
, tx
, lr
);
1914 dmu_buf_rele(db
, FTAG
);
1918 ztest_range_unlock(zd
, rl
);
1919 ztest_object_unlock(zd
, lr
->lr_foid
);
1925 ztest_replay_truncate(ztest_ds_t
*zd
, lr_truncate_t
*lr
, boolean_t byteswap
)
1927 objset_t
*os
= zd
->zd_os
;
1933 byteswap_uint64_array(lr
, sizeof (*lr
));
1935 ztest_object_lock(zd
, lr
->lr_foid
, RL_READER
);
1936 rl
= ztest_range_lock(zd
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
,
1939 tx
= dmu_tx_create(os
);
1941 dmu_tx_hold_free(tx
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
);
1943 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1945 ztest_range_unlock(zd
, rl
);
1946 ztest_object_unlock(zd
, lr
->lr_foid
);
1950 VERIFY(dmu_free_range(os
, lr
->lr_foid
, lr
->lr_offset
,
1951 lr
->lr_length
, tx
) == 0);
1953 (void) ztest_log_truncate(zd
, tx
, lr
);
1957 ztest_range_unlock(zd
, rl
);
1958 ztest_object_unlock(zd
, lr
->lr_foid
);
1964 ztest_replay_setattr(ztest_ds_t
*zd
, lr_setattr_t
*lr
, boolean_t byteswap
)
1966 objset_t
*os
= zd
->zd_os
;
1969 ztest_block_tag_t
*bbt
;
1970 uint64_t txg
, lrtxg
, crtxg
, dnodesize
;
1973 byteswap_uint64_array(lr
, sizeof (*lr
));
1975 ztest_object_lock(zd
, lr
->lr_foid
, RL_WRITER
);
1977 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1979 tx
= dmu_tx_create(os
);
1980 dmu_tx_hold_bonus(tx
, lr
->lr_foid
);
1982 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1984 dmu_buf_rele(db
, FTAG
);
1985 ztest_object_unlock(zd
, lr
->lr_foid
);
1989 bbt
= ztest_bt_bonus(db
);
1990 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1991 crtxg
= bbt
->bt_crtxg
;
1992 lrtxg
= lr
->lr_common
.lrc_txg
;
1993 dnodesize
= bbt
->bt_dnodesize
;
1995 if (zd
->zd_zilog
->zl_replay
) {
1996 ASSERT(lr
->lr_size
!= 0);
1997 ASSERT(lr
->lr_mode
!= 0);
2001 * Randomly change the size and increment the generation.
2003 lr
->lr_size
= (ztest_random(db
->db_size
/ sizeof (*bbt
)) + 1) *
2005 lr
->lr_mode
= bbt
->bt_gen
+ 1;
2010 * Verify that the current bonus buffer is not newer than our txg.
2012 ztest_bt_verify(bbt
, os
, lr
->lr_foid
, dnodesize
, -1ULL, lr
->lr_mode
,
2013 MAX(txg
, lrtxg
), crtxg
);
2015 dmu_buf_will_dirty(db
, tx
);
2017 ASSERT3U(lr
->lr_size
, >=, sizeof (*bbt
));
2018 ASSERT3U(lr
->lr_size
, <=, db
->db_size
);
2019 VERIFY0(dmu_set_bonus(db
, lr
->lr_size
, tx
));
2020 bbt
= ztest_bt_bonus(db
);
2022 ztest_bt_generate(bbt
, os
, lr
->lr_foid
, dnodesize
, -1ULL, lr
->lr_mode
,
2024 ztest_fill_unused_bonus(db
, bbt
, lr
->lr_foid
, os
, bbt
->bt_gen
);
2025 dmu_buf_rele(db
, FTAG
);
2027 (void) ztest_log_setattr(zd
, tx
, lr
);
2031 ztest_object_unlock(zd
, lr
->lr_foid
);
2036 zil_replay_func_t ztest_replay_vector
[TX_MAX_TYPE
] = {
2037 NULL
, /* 0 no such transaction type */
2038 (zil_replay_func_t
)ztest_replay_create
, /* TX_CREATE */
2039 NULL
, /* TX_MKDIR */
2040 NULL
, /* TX_MKXATTR */
2041 NULL
, /* TX_SYMLINK */
2042 (zil_replay_func_t
)ztest_replay_remove
, /* TX_REMOVE */
2043 NULL
, /* TX_RMDIR */
2045 NULL
, /* TX_RENAME */
2046 (zil_replay_func_t
)ztest_replay_write
, /* TX_WRITE */
2047 (zil_replay_func_t
)ztest_replay_truncate
, /* TX_TRUNCATE */
2048 (zil_replay_func_t
)ztest_replay_setattr
, /* TX_SETATTR */
2050 NULL
, /* TX_CREATE_ACL */
2051 NULL
, /* TX_CREATE_ATTR */
2052 NULL
, /* TX_CREATE_ACL_ATTR */
2053 NULL
, /* TX_MKDIR_ACL */
2054 NULL
, /* TX_MKDIR_ATTR */
2055 NULL
, /* TX_MKDIR_ACL_ATTR */
2056 NULL
, /* TX_WRITE2 */
2060 * ZIL get_data callbacks
2062 typedef struct ztest_zgd_private
{
2066 } ztest_zgd_private_t
;
2069 ztest_get_done(zgd_t
*zgd
, int error
)
2071 ztest_zgd_private_t
*zzp
= zgd
->zgd_private
;
2072 ztest_ds_t
*zd
= zzp
->z_zd
;
2073 uint64_t object
= zzp
->z_object
;
2076 dmu_buf_rele(zgd
->zgd_db
, zgd
);
2078 ztest_range_unlock(zd
, zzp
->z_rl
);
2079 ztest_object_unlock(zd
, object
);
2081 if (error
== 0 && zgd
->zgd_bp
)
2082 zil_add_block(zgd
->zgd_zilog
, zgd
->zgd_bp
);
2084 umem_free(zgd
, sizeof (*zgd
));
2085 umem_free(zzp
, sizeof (*zzp
));
2089 ztest_get_data(void *arg
, lr_write_t
*lr
, char *buf
, zio_t
*zio
)
2091 ztest_ds_t
*zd
= arg
;
2092 objset_t
*os
= zd
->zd_os
;
2093 uint64_t object
= lr
->lr_foid
;
2094 uint64_t offset
= lr
->lr_offset
;
2095 uint64_t size
= lr
->lr_length
;
2096 blkptr_t
*bp
= &lr
->lr_blkptr
;
2097 uint64_t txg
= lr
->lr_common
.lrc_txg
;
2099 dmu_object_info_t doi
;
2103 ztest_zgd_private_t
*zgd_private
;
2105 ztest_object_lock(zd
, object
, RL_READER
);
2106 error
= dmu_bonus_hold(os
, object
, FTAG
, &db
);
2108 ztest_object_unlock(zd
, object
);
2112 crtxg
= ztest_bt_bonus(db
)->bt_crtxg
;
2114 if (crtxg
== 0 || crtxg
> txg
) {
2115 dmu_buf_rele(db
, FTAG
);
2116 ztest_object_unlock(zd
, object
);
2120 dmu_object_info_from_db(db
, &doi
);
2121 dmu_buf_rele(db
, FTAG
);
2124 zgd
= umem_zalloc(sizeof (*zgd
), UMEM_NOFAIL
);
2125 zgd
->zgd_zilog
= zd
->zd_zilog
;
2126 zgd_private
= umem_zalloc(sizeof (ztest_zgd_private_t
), UMEM_NOFAIL
);
2127 zgd_private
->z_zd
= zd
;
2128 zgd_private
->z_object
= object
;
2129 zgd
->zgd_private
= zgd_private
;
2131 if (buf
!= NULL
) { /* immediate write */
2132 zgd_private
->z_rl
= ztest_range_lock(zd
, object
, offset
, size
,
2135 error
= dmu_read(os
, object
, offset
, size
, buf
,
2136 DMU_READ_NO_PREFETCH
);
2139 size
= doi
.doi_data_block_size
;
2141 offset
= P2ALIGN(offset
, size
);
2143 ASSERT(offset
< size
);
2147 zgd_private
->z_rl
= ztest_range_lock(zd
, object
, offset
, size
,
2150 error
= dmu_buf_hold(os
, object
, offset
, zgd
, &db
,
2151 DMU_READ_NO_PREFETCH
);
2154 blkptr_t
*obp
= dmu_buf_get_blkptr(db
);
2156 ASSERT(BP_IS_HOLE(bp
));
2163 ASSERT(db
->db_offset
== offset
);
2164 ASSERT(db
->db_size
== size
);
2166 error
= dmu_sync(zio
, lr
->lr_common
.lrc_txg
,
2167 ztest_get_done
, zgd
);
2174 ztest_get_done(zgd
, error
);
2180 ztest_lr_alloc(size_t lrsize
, char *name
)
2183 size_t namesize
= name
? strlen(name
) + 1 : 0;
2185 lr
= umem_zalloc(lrsize
+ namesize
, UMEM_NOFAIL
);
2188 bcopy(name
, lr
+ lrsize
, namesize
);
2194 ztest_lr_free(void *lr
, size_t lrsize
, char *name
)
2196 size_t namesize
= name
? strlen(name
) + 1 : 0;
2198 umem_free(lr
, lrsize
+ namesize
);
2202 * Lookup a bunch of objects. Returns the number of objects not found.
2205 ztest_lookup(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
2211 ASSERT(mutex_held(&zd
->zd_dirobj_lock
));
2213 for (i
= 0; i
< count
; i
++, od
++) {
2215 error
= zap_lookup(zd
->zd_os
, od
->od_dir
, od
->od_name
,
2216 sizeof (uint64_t), 1, &od
->od_object
);
2218 ASSERT(error
== ENOENT
);
2219 ASSERT(od
->od_object
== 0);
2223 ztest_block_tag_t
*bbt
;
2224 dmu_object_info_t doi
;
2226 ASSERT(od
->od_object
!= 0);
2227 ASSERT(missing
== 0); /* there should be no gaps */
2229 ztest_object_lock(zd
, od
->od_object
, RL_READER
);
2230 VERIFY3U(0, ==, dmu_bonus_hold(zd
->zd_os
,
2231 od
->od_object
, FTAG
, &db
));
2232 dmu_object_info_from_db(db
, &doi
);
2233 bbt
= ztest_bt_bonus(db
);
2234 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
2235 od
->od_type
= doi
.doi_type
;
2236 od
->od_blocksize
= doi
.doi_data_block_size
;
2237 od
->od_gen
= bbt
->bt_gen
;
2238 dmu_buf_rele(db
, FTAG
);
2239 ztest_object_unlock(zd
, od
->od_object
);
2247 ztest_create(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
2252 ASSERT(mutex_held(&zd
->zd_dirobj_lock
));
2254 for (i
= 0; i
< count
; i
++, od
++) {
2261 lr_create_t
*lr
= ztest_lr_alloc(sizeof (*lr
), od
->od_name
);
2263 lr
->lr_doid
= od
->od_dir
;
2264 lr
->lr_foid
= 0; /* 0 to allocate, > 0 to claim */
2265 lr
->lrz_type
= od
->od_crtype
;
2266 lr
->lrz_blocksize
= od
->od_crblocksize
;
2267 lr
->lrz_ibshift
= ztest_random_ibshift();
2268 lr
->lrz_bonustype
= DMU_OT_UINT64_OTHER
;
2269 lr
->lrz_dnodesize
= od
->od_crdnodesize
;
2270 lr
->lr_gen
= od
->od_crgen
;
2271 lr
->lr_crtime
[0] = time(NULL
);
2273 if (ztest_replay_create(zd
, lr
, B_FALSE
) != 0) {
2274 ASSERT(missing
== 0);
2278 od
->od_object
= lr
->lr_foid
;
2279 od
->od_type
= od
->od_crtype
;
2280 od
->od_blocksize
= od
->od_crblocksize
;
2281 od
->od_gen
= od
->od_crgen
;
2282 ASSERT(od
->od_object
!= 0);
2285 ztest_lr_free(lr
, sizeof (*lr
), od
->od_name
);
2292 ztest_remove(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
2298 ASSERT(mutex_held(&zd
->zd_dirobj_lock
));
2302 for (i
= count
- 1; i
>= 0; i
--, od
--) {
2309 * No object was found.
2311 if (od
->od_object
== 0)
2314 lr_remove_t
*lr
= ztest_lr_alloc(sizeof (*lr
), od
->od_name
);
2316 lr
->lr_doid
= od
->od_dir
;
2318 if ((error
= ztest_replay_remove(zd
, lr
, B_FALSE
)) != 0) {
2319 ASSERT3U(error
, ==, ENOSPC
);
2324 ztest_lr_free(lr
, sizeof (*lr
), od
->od_name
);
2331 ztest_write(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
,
2337 lr
= ztest_lr_alloc(sizeof (*lr
) + size
, NULL
);
2339 lr
->lr_foid
= object
;
2340 lr
->lr_offset
= offset
;
2341 lr
->lr_length
= size
;
2343 BP_ZERO(&lr
->lr_blkptr
);
2345 bcopy(data
, lr
+ 1, size
);
2347 error
= ztest_replay_write(zd
, lr
, B_FALSE
);
2349 ztest_lr_free(lr
, sizeof (*lr
) + size
, NULL
);
2355 ztest_truncate(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
)
2360 lr
= ztest_lr_alloc(sizeof (*lr
), NULL
);
2362 lr
->lr_foid
= object
;
2363 lr
->lr_offset
= offset
;
2364 lr
->lr_length
= size
;
2366 error
= ztest_replay_truncate(zd
, lr
, B_FALSE
);
2368 ztest_lr_free(lr
, sizeof (*lr
), NULL
);
2374 ztest_setattr(ztest_ds_t
*zd
, uint64_t object
)
2379 lr
= ztest_lr_alloc(sizeof (*lr
), NULL
);
2381 lr
->lr_foid
= object
;
2385 error
= ztest_replay_setattr(zd
, lr
, B_FALSE
);
2387 ztest_lr_free(lr
, sizeof (*lr
), NULL
);
2393 ztest_prealloc(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
)
2395 objset_t
*os
= zd
->zd_os
;
2400 txg_wait_synced(dmu_objset_pool(os
), 0);
2402 ztest_object_lock(zd
, object
, RL_READER
);
2403 rl
= ztest_range_lock(zd
, object
, offset
, size
, RL_WRITER
);
2405 tx
= dmu_tx_create(os
);
2407 dmu_tx_hold_write(tx
, object
, offset
, size
);
2409 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
2412 dmu_prealloc(os
, object
, offset
, size
, tx
);
2414 txg_wait_synced(dmu_objset_pool(os
), txg
);
2416 (void) dmu_free_long_range(os
, object
, offset
, size
);
2419 ztest_range_unlock(zd
, rl
);
2420 ztest_object_unlock(zd
, object
);
2424 ztest_io(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
)
2427 ztest_block_tag_t wbt
;
2428 dmu_object_info_t doi
;
2429 enum ztest_io_type io_type
;
2433 VERIFY(dmu_object_info(zd
->zd_os
, object
, &doi
) == 0);
2434 blocksize
= doi
.doi_data_block_size
;
2435 data
= umem_alloc(blocksize
, UMEM_NOFAIL
);
2438 * Pick an i/o type at random, biased toward writing block tags.
2440 io_type
= ztest_random(ZTEST_IO_TYPES
);
2441 if (ztest_random(2) == 0)
2442 io_type
= ZTEST_IO_WRITE_TAG
;
2444 (void) rw_rdlock(&zd
->zd_zilog_lock
);
2448 case ZTEST_IO_WRITE_TAG
:
2449 ztest_bt_generate(&wbt
, zd
->zd_os
, object
, doi
.doi_dnodesize
,
2451 (void) ztest_write(zd
, object
, offset
, sizeof (wbt
), &wbt
);
2454 case ZTEST_IO_WRITE_PATTERN
:
2455 (void) memset(data
, 'a' + (object
+ offset
) % 5, blocksize
);
2456 if (ztest_random(2) == 0) {
2458 * Induce fletcher2 collisions to ensure that
2459 * zio_ddt_collision() detects and resolves them
2460 * when using fletcher2-verify for deduplication.
2462 ((uint64_t *)data
)[0] ^= 1ULL << 63;
2463 ((uint64_t *)data
)[4] ^= 1ULL << 63;
2465 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2468 case ZTEST_IO_WRITE_ZEROES
:
2469 bzero(data
, blocksize
);
2470 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2473 case ZTEST_IO_TRUNCATE
:
2474 (void) ztest_truncate(zd
, object
, offset
, blocksize
);
2477 case ZTEST_IO_SETATTR
:
2478 (void) ztest_setattr(zd
, object
);
2483 case ZTEST_IO_REWRITE
:
2484 (void) rw_rdlock(&ztest_name_lock
);
2485 err
= ztest_dsl_prop_set_uint64(zd
->zd_name
,
2486 ZFS_PROP_CHECKSUM
, spa_dedup_checksum(ztest_spa
),
2488 VERIFY(err
== 0 || err
== ENOSPC
);
2489 err
= ztest_dsl_prop_set_uint64(zd
->zd_name
,
2490 ZFS_PROP_COMPRESSION
,
2491 ztest_random_dsl_prop(ZFS_PROP_COMPRESSION
),
2493 VERIFY(err
== 0 || err
== ENOSPC
);
2494 (void) rw_unlock(&ztest_name_lock
);
2496 VERIFY0(dmu_read(zd
->zd_os
, object
, offset
, blocksize
, data
,
2497 DMU_READ_NO_PREFETCH
));
2499 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2503 (void) rw_unlock(&zd
->zd_zilog_lock
);
2505 umem_free(data
, blocksize
);
2509 * Initialize an object description template.
2512 ztest_od_init(ztest_od_t
*od
, uint64_t id
, char *tag
, uint64_t index
,
2513 dmu_object_type_t type
, uint64_t blocksize
, uint64_t dnodesize
,
2516 od
->od_dir
= ZTEST_DIROBJ
;
2519 od
->od_crtype
= type
;
2520 od
->od_crblocksize
= blocksize
? blocksize
: ztest_random_blocksize();
2521 od
->od_crdnodesize
= dnodesize
? dnodesize
: ztest_random_dnodesize();
2524 od
->od_type
= DMU_OT_NONE
;
2525 od
->od_blocksize
= 0;
2528 (void) snprintf(od
->od_name
, sizeof (od
->od_name
), "%s(%lld)[%llu]",
2529 tag
, (longlong_t
)id
, (u_longlong_t
)index
);
2533 * Lookup or create the objects for a test using the od template.
2534 * If the objects do not all exist, or if 'remove' is specified,
2535 * remove any existing objects and create new ones. Otherwise,
2536 * use the existing objects.
2539 ztest_object_init(ztest_ds_t
*zd
, ztest_od_t
*od
, size_t size
, boolean_t remove
)
2541 int count
= size
/ sizeof (*od
);
2544 mutex_enter(&zd
->zd_dirobj_lock
);
2545 if ((ztest_lookup(zd
, od
, count
) != 0 || remove
) &&
2546 (ztest_remove(zd
, od
, count
) != 0 ||
2547 ztest_create(zd
, od
, count
) != 0))
2550 mutex_exit(&zd
->zd_dirobj_lock
);
2557 ztest_zil_commit(ztest_ds_t
*zd
, uint64_t id
)
2559 zilog_t
*zilog
= zd
->zd_zilog
;
2561 (void) rw_rdlock(&zd
->zd_zilog_lock
);
2563 zil_commit(zilog
, ztest_random(ZTEST_OBJECTS
));
2566 * Remember the committed values in zd, which is in parent/child
2567 * shared memory. If we die, the next iteration of ztest_run()
2568 * will verify that the log really does contain this record.
2570 mutex_enter(&zilog
->zl_lock
);
2571 ASSERT(zd
->zd_shared
!= NULL
);
2572 ASSERT3U(zd
->zd_shared
->zd_seq
, <=, zilog
->zl_commit_lr_seq
);
2573 zd
->zd_shared
->zd_seq
= zilog
->zl_commit_lr_seq
;
2574 mutex_exit(&zilog
->zl_lock
);
2576 (void) rw_unlock(&zd
->zd_zilog_lock
);
2580 * This function is designed to simulate the operations that occur during a
2581 * mount/unmount operation. We hold the dataset across these operations in an
2582 * attempt to expose any implicit assumptions about ZIL management.
2586 ztest_zil_remount(ztest_ds_t
*zd
, uint64_t id
)
2588 objset_t
*os
= zd
->zd_os
;
2591 * We grab the zd_dirobj_lock to ensure that no other thread is
2592 * updating the zil (i.e. adding in-memory log records) and the
2593 * zd_zilog_lock to block any I/O.
2595 mutex_enter(&zd
->zd_dirobj_lock
);
2596 (void) rw_wrlock(&zd
->zd_zilog_lock
);
2598 /* zfs_sb_teardown() */
2599 zil_close(zd
->zd_zilog
);
2601 /* zfsvfs_setup() */
2602 VERIFY(zil_open(os
, ztest_get_data
) == zd
->zd_zilog
);
2603 zil_replay(os
, zd
, ztest_replay_vector
);
2605 (void) rw_unlock(&zd
->zd_zilog_lock
);
2606 mutex_exit(&zd
->zd_dirobj_lock
);
2610 * Verify that we can't destroy an active pool, create an existing pool,
2611 * or create a pool with a bad vdev spec.
2615 ztest_spa_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
2617 ztest_shared_opts_t
*zo
= &ztest_opts
;
2622 * Attempt to create using a bad file.
2624 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 0, 1);
2625 VERIFY3U(ENOENT
, ==,
2626 spa_create("ztest_bad_file", nvroot
, NULL
, NULL
));
2627 nvlist_free(nvroot
);
2630 * Attempt to create using a bad mirror.
2632 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 2, 1);
2633 VERIFY3U(ENOENT
, ==,
2634 spa_create("ztest_bad_mirror", nvroot
, NULL
, NULL
));
2635 nvlist_free(nvroot
);
2638 * Attempt to create an existing pool. It shouldn't matter
2639 * what's in the nvroot; we should fail with EEXIST.
2641 (void) rw_rdlock(&ztest_name_lock
);
2642 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 0, 1);
2643 VERIFY3U(EEXIST
, ==, spa_create(zo
->zo_pool
, nvroot
, NULL
, NULL
));
2644 nvlist_free(nvroot
);
2645 VERIFY3U(0, ==, spa_open(zo
->zo_pool
, &spa
, FTAG
));
2646 VERIFY3U(EBUSY
, ==, spa_destroy(zo
->zo_pool
));
2647 spa_close(spa
, FTAG
);
2649 (void) rw_unlock(&ztest_name_lock
);
2654 ztest_spa_upgrade(ztest_ds_t
*zd
, uint64_t id
)
2657 uint64_t initial_version
= SPA_VERSION_INITIAL
;
2658 uint64_t version
, newversion
;
2659 nvlist_t
*nvroot
, *props
;
2662 mutex_enter(&ztest_vdev_lock
);
2663 name
= kmem_asprintf("%s_upgrade", ztest_opts
.zo_pool
);
2666 * Clean up from previous runs.
2668 (void) spa_destroy(name
);
2670 nvroot
= make_vdev_root(NULL
, NULL
, name
, ztest_opts
.zo_vdev_size
, 0,
2671 0, ztest_opts
.zo_raidz
, ztest_opts
.zo_mirrors
, 1);
2674 * If we're configuring a RAIDZ device then make sure that the
2675 * the initial version is capable of supporting that feature.
2677 switch (ztest_opts
.zo_raidz_parity
) {
2680 initial_version
= SPA_VERSION_INITIAL
;
2683 initial_version
= SPA_VERSION_RAIDZ2
;
2686 initial_version
= SPA_VERSION_RAIDZ3
;
2691 * Create a pool with a spa version that can be upgraded. Pick
2692 * a value between initial_version and SPA_VERSION_BEFORE_FEATURES.
2695 version
= ztest_random_spa_version(initial_version
);
2696 } while (version
> SPA_VERSION_BEFORE_FEATURES
);
2698 props
= fnvlist_alloc();
2699 fnvlist_add_uint64(props
,
2700 zpool_prop_to_name(ZPOOL_PROP_VERSION
), version
);
2701 VERIFY3S(spa_create(name
, nvroot
, props
, NULL
), ==, 0);
2702 fnvlist_free(nvroot
);
2703 fnvlist_free(props
);
2705 VERIFY3S(spa_open(name
, &spa
, FTAG
), ==, 0);
2706 VERIFY3U(spa_version(spa
), ==, version
);
2707 newversion
= ztest_random_spa_version(version
+ 1);
2709 if (ztest_opts
.zo_verbose
>= 4) {
2710 (void) printf("upgrading spa version from %llu to %llu\n",
2711 (u_longlong_t
)version
, (u_longlong_t
)newversion
);
2714 spa_upgrade(spa
, newversion
);
2715 VERIFY3U(spa_version(spa
), >, version
);
2716 VERIFY3U(spa_version(spa
), ==, fnvlist_lookup_uint64(spa
->spa_config
,
2717 zpool_prop_to_name(ZPOOL_PROP_VERSION
)));
2718 spa_close(spa
, FTAG
);
2721 mutex_exit(&ztest_vdev_lock
);
2725 vdev_lookup_by_path(vdev_t
*vd
, const char *path
)
2730 if (vd
->vdev_path
!= NULL
&& strcmp(path
, vd
->vdev_path
) == 0)
2733 for (c
= 0; c
< vd
->vdev_children
; c
++)
2734 if ((mvd
= vdev_lookup_by_path(vd
->vdev_child
[c
], path
)) !=
2742 * Find the first available hole which can be used as a top-level.
2745 find_vdev_hole(spa_t
*spa
)
2747 vdev_t
*rvd
= spa
->spa_root_vdev
;
2750 ASSERT(spa_config_held(spa
, SCL_VDEV
, RW_READER
) == SCL_VDEV
);
2752 for (c
= 0; c
< rvd
->vdev_children
; c
++) {
2753 vdev_t
*cvd
= rvd
->vdev_child
[c
];
2755 if (cvd
->vdev_ishole
)
2762 * Verify that vdev_add() works as expected.
2766 ztest_vdev_add_remove(ztest_ds_t
*zd
, uint64_t id
)
2768 ztest_shared_t
*zs
= ztest_shared
;
2769 spa_t
*spa
= ztest_spa
;
2775 mutex_enter(&ztest_vdev_lock
);
2776 leaves
= MAX(zs
->zs_mirrors
+ zs
->zs_splits
, 1) * ztest_opts
.zo_raidz
;
2778 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2780 ztest_shared
->zs_vdev_next_leaf
= find_vdev_hole(spa
) * leaves
;
2783 * If we have slogs then remove them 1/4 of the time.
2785 if (spa_has_slogs(spa
) && ztest_random(4) == 0) {
2787 * Grab the guid from the head of the log class rotor.
2789 guid
= spa_log_class(spa
)->mc_rotor
->mg_vd
->vdev_guid
;
2791 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2794 * We have to grab the zs_name_lock as writer to
2795 * prevent a race between removing a slog (dmu_objset_find)
2796 * and destroying a dataset. Removing the slog will
2797 * grab a reference on the dataset which may cause
2798 * dsl_destroy_head() to fail with EBUSY thus
2799 * leaving the dataset in an inconsistent state.
2801 rw_wrlock(&ztest_name_lock
);
2802 error
= spa_vdev_remove(spa
, guid
, B_FALSE
);
2803 rw_unlock(&ztest_name_lock
);
2805 if (error
&& error
!= EEXIST
)
2806 fatal(0, "spa_vdev_remove() = %d", error
);
2808 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2811 * Make 1/4 of the devices be log devices.
2813 nvroot
= make_vdev_root(NULL
, NULL
, NULL
,
2814 ztest_opts
.zo_vdev_size
, 0,
2815 ztest_random(4) == 0, ztest_opts
.zo_raidz
,
2818 error
= spa_vdev_add(spa
, nvroot
);
2819 nvlist_free(nvroot
);
2821 if (error
== ENOSPC
)
2822 ztest_record_enospc("spa_vdev_add");
2823 else if (error
!= 0)
2824 fatal(0, "spa_vdev_add() = %d", error
);
2827 mutex_exit(&ztest_vdev_lock
);
2831 * Verify that adding/removing aux devices (l2arc, hot spare) works as expected.
2835 ztest_vdev_aux_add_remove(ztest_ds_t
*zd
, uint64_t id
)
2837 ztest_shared_t
*zs
= ztest_shared
;
2838 spa_t
*spa
= ztest_spa
;
2839 vdev_t
*rvd
= spa
->spa_root_vdev
;
2840 spa_aux_vdev_t
*sav
;
2846 path
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
2848 if (ztest_random(2) == 0) {
2849 sav
= &spa
->spa_spares
;
2850 aux
= ZPOOL_CONFIG_SPARES
;
2852 sav
= &spa
->spa_l2cache
;
2853 aux
= ZPOOL_CONFIG_L2CACHE
;
2856 mutex_enter(&ztest_vdev_lock
);
2858 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2860 if (sav
->sav_count
!= 0 && ztest_random(4) == 0) {
2862 * Pick a random device to remove.
2864 guid
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)]->vdev_guid
;
2867 * Find an unused device we can add.
2869 zs
->zs_vdev_aux
= 0;
2872 (void) snprintf(path
, MAXPATHLEN
, ztest_aux_template
,
2873 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
, aux
,
2875 for (c
= 0; c
< sav
->sav_count
; c
++)
2876 if (strcmp(sav
->sav_vdevs
[c
]->vdev_path
,
2879 if (c
== sav
->sav_count
&&
2880 vdev_lookup_by_path(rvd
, path
) == NULL
)
2886 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2892 nvlist_t
*nvroot
= make_vdev_root(NULL
, aux
, NULL
,
2893 (ztest_opts
.zo_vdev_size
* 5) / 4, 0, 0, 0, 0, 1);
2894 error
= spa_vdev_add(spa
, nvroot
);
2896 fatal(0, "spa_vdev_add(%p) = %d", nvroot
, error
);
2897 nvlist_free(nvroot
);
2900 * Remove an existing device. Sometimes, dirty its
2901 * vdev state first to make sure we handle removal
2902 * of devices that have pending state changes.
2904 if (ztest_random(2) == 0)
2905 (void) vdev_online(spa
, guid
, 0, NULL
);
2907 error
= spa_vdev_remove(spa
, guid
, B_FALSE
);
2908 if (error
!= 0 && error
!= EBUSY
)
2909 fatal(0, "spa_vdev_remove(%llu) = %d", guid
, error
);
2912 mutex_exit(&ztest_vdev_lock
);
2914 umem_free(path
, MAXPATHLEN
);
2918 * split a pool if it has mirror tlvdevs
2922 ztest_split_pool(ztest_ds_t
*zd
, uint64_t id
)
2924 ztest_shared_t
*zs
= ztest_shared
;
2925 spa_t
*spa
= ztest_spa
;
2926 vdev_t
*rvd
= spa
->spa_root_vdev
;
2927 nvlist_t
*tree
, **child
, *config
, *split
, **schild
;
2928 uint_t c
, children
, schildren
= 0, lastlogid
= 0;
2931 mutex_enter(&ztest_vdev_lock
);
2933 /* ensure we have a useable config; mirrors of raidz aren't supported */
2934 if (zs
->zs_mirrors
< 3 || ztest_opts
.zo_raidz
> 1) {
2935 mutex_exit(&ztest_vdev_lock
);
2939 /* clean up the old pool, if any */
2940 (void) spa_destroy("splitp");
2942 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2944 /* generate a config from the existing config */
2945 mutex_enter(&spa
->spa_props_lock
);
2946 VERIFY(nvlist_lookup_nvlist(spa
->spa_config
, ZPOOL_CONFIG_VDEV_TREE
,
2948 mutex_exit(&spa
->spa_props_lock
);
2950 VERIFY(nvlist_lookup_nvlist_array(tree
, ZPOOL_CONFIG_CHILDREN
, &child
,
2953 schild
= malloc(rvd
->vdev_children
* sizeof (nvlist_t
*));
2954 for (c
= 0; c
< children
; c
++) {
2955 vdev_t
*tvd
= rvd
->vdev_child
[c
];
2959 if (tvd
->vdev_islog
|| tvd
->vdev_ops
== &vdev_hole_ops
) {
2960 VERIFY(nvlist_alloc(&schild
[schildren
], NV_UNIQUE_NAME
,
2962 VERIFY(nvlist_add_string(schild
[schildren
],
2963 ZPOOL_CONFIG_TYPE
, VDEV_TYPE_HOLE
) == 0);
2964 VERIFY(nvlist_add_uint64(schild
[schildren
],
2965 ZPOOL_CONFIG_IS_HOLE
, 1) == 0);
2967 lastlogid
= schildren
;
2972 VERIFY(nvlist_lookup_nvlist_array(child
[c
],
2973 ZPOOL_CONFIG_CHILDREN
, &mchild
, &mchildren
) == 0);
2974 VERIFY(nvlist_dup(mchild
[0], &schild
[schildren
++], 0) == 0);
2977 /* OK, create a config that can be used to split */
2978 VERIFY(nvlist_alloc(&split
, NV_UNIQUE_NAME
, 0) == 0);
2979 VERIFY(nvlist_add_string(split
, ZPOOL_CONFIG_TYPE
,
2980 VDEV_TYPE_ROOT
) == 0);
2981 VERIFY(nvlist_add_nvlist_array(split
, ZPOOL_CONFIG_CHILDREN
, schild
,
2982 lastlogid
!= 0 ? lastlogid
: schildren
) == 0);
2984 VERIFY(nvlist_alloc(&config
, NV_UNIQUE_NAME
, 0) == 0);
2985 VERIFY(nvlist_add_nvlist(config
, ZPOOL_CONFIG_VDEV_TREE
, split
) == 0);
2987 for (c
= 0; c
< schildren
; c
++)
2988 nvlist_free(schild
[c
]);
2992 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2994 (void) rw_wrlock(&ztest_name_lock
);
2995 error
= spa_vdev_split_mirror(spa
, "splitp", config
, NULL
, B_FALSE
);
2996 (void) rw_unlock(&ztest_name_lock
);
2998 nvlist_free(config
);
3001 (void) printf("successful split - results:\n");
3002 mutex_enter(&spa_namespace_lock
);
3003 show_pool_stats(spa
);
3004 show_pool_stats(spa_lookup("splitp"));
3005 mutex_exit(&spa_namespace_lock
);
3009 mutex_exit(&ztest_vdev_lock
);
3014 * Verify that we can attach and detach devices.
3018 ztest_vdev_attach_detach(ztest_ds_t
*zd
, uint64_t id
)
3020 ztest_shared_t
*zs
= ztest_shared
;
3021 spa_t
*spa
= ztest_spa
;
3022 spa_aux_vdev_t
*sav
= &spa
->spa_spares
;
3023 vdev_t
*rvd
= spa
->spa_root_vdev
;
3024 vdev_t
*oldvd
, *newvd
, *pvd
;
3028 uint64_t ashift
= ztest_get_ashift();
3029 uint64_t oldguid
, pguid
;
3030 uint64_t oldsize
, newsize
;
3031 char *oldpath
, *newpath
;
3033 int oldvd_has_siblings
= B_FALSE
;
3034 int newvd_is_spare
= B_FALSE
;
3036 int error
, expected_error
;
3038 oldpath
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
3039 newpath
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
3041 mutex_enter(&ztest_vdev_lock
);
3042 leaves
= MAX(zs
->zs_mirrors
, 1) * ztest_opts
.zo_raidz
;
3044 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
3047 * Decide whether to do an attach or a replace.
3049 replacing
= ztest_random(2);
3052 * Pick a random top-level vdev.
3054 top
= ztest_random_vdev_top(spa
, B_TRUE
);
3057 * Pick a random leaf within it.
3059 leaf
= ztest_random(leaves
);
3064 oldvd
= rvd
->vdev_child
[top
];
3065 if (zs
->zs_mirrors
>= 1) {
3066 ASSERT(oldvd
->vdev_ops
== &vdev_mirror_ops
);
3067 ASSERT(oldvd
->vdev_children
>= zs
->zs_mirrors
);
3068 oldvd
= oldvd
->vdev_child
[leaf
/ ztest_opts
.zo_raidz
];
3070 if (ztest_opts
.zo_raidz
> 1) {
3071 ASSERT(oldvd
->vdev_ops
== &vdev_raidz_ops
);
3072 ASSERT(oldvd
->vdev_children
== ztest_opts
.zo_raidz
);
3073 oldvd
= oldvd
->vdev_child
[leaf
% ztest_opts
.zo_raidz
];
3077 * If we're already doing an attach or replace, oldvd may be a
3078 * mirror vdev -- in which case, pick a random child.
3080 while (oldvd
->vdev_children
!= 0) {
3081 oldvd_has_siblings
= B_TRUE
;
3082 ASSERT(oldvd
->vdev_children
>= 2);
3083 oldvd
= oldvd
->vdev_child
[ztest_random(oldvd
->vdev_children
)];
3086 oldguid
= oldvd
->vdev_guid
;
3087 oldsize
= vdev_get_min_asize(oldvd
);
3088 oldvd_is_log
= oldvd
->vdev_top
->vdev_islog
;
3089 (void) strcpy(oldpath
, oldvd
->vdev_path
);
3090 pvd
= oldvd
->vdev_parent
;
3091 pguid
= pvd
->vdev_guid
;
3094 * If oldvd has siblings, then half of the time, detach it.
3096 if (oldvd_has_siblings
&& ztest_random(2) == 0) {
3097 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
3098 error
= spa_vdev_detach(spa
, oldguid
, pguid
, B_FALSE
);
3099 if (error
!= 0 && error
!= ENODEV
&& error
!= EBUSY
&&
3101 fatal(0, "detach (%s) returned %d", oldpath
, error
);
3106 * For the new vdev, choose with equal probability between the two
3107 * standard paths (ending in either 'a' or 'b') or a random hot spare.
3109 if (sav
->sav_count
!= 0 && ztest_random(3) == 0) {
3110 newvd
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)];
3111 newvd_is_spare
= B_TRUE
;
3112 (void) strcpy(newpath
, newvd
->vdev_path
);
3114 (void) snprintf(newpath
, MAXPATHLEN
, ztest_dev_template
,
3115 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
3116 top
* leaves
+ leaf
);
3117 if (ztest_random(2) == 0)
3118 newpath
[strlen(newpath
) - 1] = 'b';
3119 newvd
= vdev_lookup_by_path(rvd
, newpath
);
3123 newsize
= vdev_get_min_asize(newvd
);
3126 * Make newsize a little bigger or smaller than oldsize.
3127 * If it's smaller, the attach should fail.
3128 * If it's larger, and we're doing a replace,
3129 * we should get dynamic LUN growth when we're done.
3131 newsize
= 10 * oldsize
/ (9 + ztest_random(3));
3135 * If pvd is not a mirror or root, the attach should fail with ENOTSUP,
3136 * unless it's a replace; in that case any non-replacing parent is OK.
3138 * If newvd is already part of the pool, it should fail with EBUSY.
3140 * If newvd is too small, it should fail with EOVERFLOW.
3142 if (pvd
->vdev_ops
!= &vdev_mirror_ops
&&
3143 pvd
->vdev_ops
!= &vdev_root_ops
&& (!replacing
||
3144 pvd
->vdev_ops
== &vdev_replacing_ops
||
3145 pvd
->vdev_ops
== &vdev_spare_ops
))
3146 expected_error
= ENOTSUP
;
3147 else if (newvd_is_spare
&& (!replacing
|| oldvd_is_log
))
3148 expected_error
= ENOTSUP
;
3149 else if (newvd
== oldvd
)
3150 expected_error
= replacing
? 0 : EBUSY
;
3151 else if (vdev_lookup_by_path(rvd
, newpath
) != NULL
)
3152 expected_error
= EBUSY
;
3153 else if (newsize
< oldsize
)
3154 expected_error
= EOVERFLOW
;
3155 else if (ashift
> oldvd
->vdev_top
->vdev_ashift
)
3156 expected_error
= EDOM
;
3160 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
3163 * Build the nvlist describing newpath.
3165 root
= make_vdev_root(newpath
, NULL
, NULL
, newvd
== NULL
? newsize
: 0,
3166 ashift
, 0, 0, 0, 1);
3168 error
= spa_vdev_attach(spa
, oldguid
, root
, replacing
);
3173 * If our parent was the replacing vdev, but the replace completed,
3174 * then instead of failing with ENOTSUP we may either succeed,
3175 * fail with ENODEV, or fail with EOVERFLOW.
3177 if (expected_error
== ENOTSUP
&&
3178 (error
== 0 || error
== ENODEV
|| error
== EOVERFLOW
))
3179 expected_error
= error
;
3182 * If someone grew the LUN, the replacement may be too small.
3184 if (error
== EOVERFLOW
|| error
== EBUSY
)
3185 expected_error
= error
;
3187 /* XXX workaround 6690467 */
3188 if (error
!= expected_error
&& expected_error
!= EBUSY
) {
3189 fatal(0, "attach (%s %llu, %s %llu, %d) "
3190 "returned %d, expected %d",
3191 oldpath
, oldsize
, newpath
,
3192 newsize
, replacing
, error
, expected_error
);
3195 mutex_exit(&ztest_vdev_lock
);
3197 umem_free(oldpath
, MAXPATHLEN
);
3198 umem_free(newpath
, MAXPATHLEN
);
3202 * Callback function which expands the physical size of the vdev.
3205 grow_vdev(vdev_t
*vd
, void *arg
)
3207 ASSERTV(spa_t
*spa
= vd
->vdev_spa
);
3208 size_t *newsize
= arg
;
3212 ASSERT(spa_config_held(spa
, SCL_STATE
, RW_READER
) == SCL_STATE
);
3213 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
3215 if ((fd
= open(vd
->vdev_path
, O_RDWR
)) == -1)
3218 fsize
= lseek(fd
, 0, SEEK_END
);
3219 VERIFY(ftruncate(fd
, *newsize
) == 0);
3221 if (ztest_opts
.zo_verbose
>= 6) {
3222 (void) printf("%s grew from %lu to %lu bytes\n",
3223 vd
->vdev_path
, (ulong_t
)fsize
, (ulong_t
)*newsize
);
3230 * Callback function which expands a given vdev by calling vdev_online().
3234 online_vdev(vdev_t
*vd
, void *arg
)
3236 spa_t
*spa
= vd
->vdev_spa
;
3237 vdev_t
*tvd
= vd
->vdev_top
;
3238 uint64_t guid
= vd
->vdev_guid
;
3239 uint64_t generation
= spa
->spa_config_generation
+ 1;
3240 vdev_state_t newstate
= VDEV_STATE_UNKNOWN
;
3243 ASSERT(spa_config_held(spa
, SCL_STATE
, RW_READER
) == SCL_STATE
);
3244 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
3246 /* Calling vdev_online will initialize the new metaslabs */
3247 spa_config_exit(spa
, SCL_STATE
, spa
);
3248 error
= vdev_online(spa
, guid
, ZFS_ONLINE_EXPAND
, &newstate
);
3249 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3252 * If vdev_online returned an error or the underlying vdev_open
3253 * failed then we abort the expand. The only way to know that
3254 * vdev_open fails is by checking the returned newstate.
3256 if (error
|| newstate
!= VDEV_STATE_HEALTHY
) {
3257 if (ztest_opts
.zo_verbose
>= 5) {
3258 (void) printf("Unable to expand vdev, state %llu, "
3259 "error %d\n", (u_longlong_t
)newstate
, error
);
3263 ASSERT3U(newstate
, ==, VDEV_STATE_HEALTHY
);
3266 * Since we dropped the lock we need to ensure that we're
3267 * still talking to the original vdev. It's possible this
3268 * vdev may have been detached/replaced while we were
3269 * trying to online it.
3271 if (generation
!= spa
->spa_config_generation
) {
3272 if (ztest_opts
.zo_verbose
>= 5) {
3273 (void) printf("vdev configuration has changed, "
3274 "guid %llu, state %llu, expected gen %llu, "
3277 (u_longlong_t
)tvd
->vdev_state
,
3278 (u_longlong_t
)generation
,
3279 (u_longlong_t
)spa
->spa_config_generation
);
3287 * Traverse the vdev tree calling the supplied function.
3288 * We continue to walk the tree until we either have walked all
3289 * children or we receive a non-NULL return from the callback.
3290 * If a NULL callback is passed, then we just return back the first
3291 * leaf vdev we encounter.
3294 vdev_walk_tree(vdev_t
*vd
, vdev_t
*(*func
)(vdev_t
*, void *), void *arg
)
3298 if (vd
->vdev_ops
->vdev_op_leaf
) {
3302 return (func(vd
, arg
));
3305 for (c
= 0; c
< vd
->vdev_children
; c
++) {
3306 vdev_t
*cvd
= vd
->vdev_child
[c
];
3307 if ((cvd
= vdev_walk_tree(cvd
, func
, arg
)) != NULL
)
3314 * Verify that dynamic LUN growth works as expected.
3318 ztest_vdev_LUN_growth(ztest_ds_t
*zd
, uint64_t id
)
3320 spa_t
*spa
= ztest_spa
;
3322 metaslab_class_t
*mc
;
3323 metaslab_group_t
*mg
;
3324 size_t psize
, newsize
;
3326 uint64_t old_class_space
, new_class_space
, old_ms_count
, new_ms_count
;
3328 mutex_enter(&ztest_vdev_lock
);
3329 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3331 top
= ztest_random_vdev_top(spa
, B_TRUE
);
3333 tvd
= spa
->spa_root_vdev
->vdev_child
[top
];
3336 old_ms_count
= tvd
->vdev_ms_count
;
3337 old_class_space
= metaslab_class_get_space(mc
);
3340 * Determine the size of the first leaf vdev associated with
3341 * our top-level device.
3343 vd
= vdev_walk_tree(tvd
, NULL
, NULL
);
3344 ASSERT3P(vd
, !=, NULL
);
3345 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
3347 psize
= vd
->vdev_psize
;
3350 * We only try to expand the vdev if it's healthy, less than 4x its
3351 * original size, and it has a valid psize.
3353 if (tvd
->vdev_state
!= VDEV_STATE_HEALTHY
||
3354 psize
== 0 || psize
>= 4 * ztest_opts
.zo_vdev_size
) {
3355 spa_config_exit(spa
, SCL_STATE
, spa
);
3356 mutex_exit(&ztest_vdev_lock
);
3360 newsize
= psize
+ psize
/ 8;
3361 ASSERT3U(newsize
, >, psize
);
3363 if (ztest_opts
.zo_verbose
>= 6) {
3364 (void) printf("Expanding LUN %s from %lu to %lu\n",
3365 vd
->vdev_path
, (ulong_t
)psize
, (ulong_t
)newsize
);
3369 * Growing the vdev is a two step process:
3370 * 1). expand the physical size (i.e. relabel)
3371 * 2). online the vdev to create the new metaslabs
3373 if (vdev_walk_tree(tvd
, grow_vdev
, &newsize
) != NULL
||
3374 vdev_walk_tree(tvd
, online_vdev
, NULL
) != NULL
||
3375 tvd
->vdev_state
!= VDEV_STATE_HEALTHY
) {
3376 if (ztest_opts
.zo_verbose
>= 5) {
3377 (void) printf("Could not expand LUN because "
3378 "the vdev configuration changed.\n");
3380 spa_config_exit(spa
, SCL_STATE
, spa
);
3381 mutex_exit(&ztest_vdev_lock
);
3385 spa_config_exit(spa
, SCL_STATE
, spa
);
3388 * Expanding the LUN will update the config asynchronously,
3389 * thus we must wait for the async thread to complete any
3390 * pending tasks before proceeding.
3394 mutex_enter(&spa
->spa_async_lock
);
3395 done
= (spa
->spa_async_thread
== NULL
&& !spa
->spa_async_tasks
);
3396 mutex_exit(&spa
->spa_async_lock
);
3399 txg_wait_synced(spa_get_dsl(spa
), 0);
3400 (void) poll(NULL
, 0, 100);
3403 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3405 tvd
= spa
->spa_root_vdev
->vdev_child
[top
];
3406 new_ms_count
= tvd
->vdev_ms_count
;
3407 new_class_space
= metaslab_class_get_space(mc
);
3409 if (tvd
->vdev_mg
!= mg
|| mg
->mg_class
!= mc
) {
3410 if (ztest_opts
.zo_verbose
>= 5) {
3411 (void) printf("Could not verify LUN expansion due to "
3412 "intervening vdev offline or remove.\n");
3414 spa_config_exit(spa
, SCL_STATE
, spa
);
3415 mutex_exit(&ztest_vdev_lock
);
3420 * Make sure we were able to grow the vdev.
3422 if (new_ms_count
<= old_ms_count
)
3423 fatal(0, "LUN expansion failed: ms_count %llu <= %llu\n",
3424 old_ms_count
, new_ms_count
);
3427 * Make sure we were able to grow the pool.
3429 if (new_class_space
<= old_class_space
)
3430 fatal(0, "LUN expansion failed: class_space %llu <= %llu\n",
3431 old_class_space
, new_class_space
);
3433 if (ztest_opts
.zo_verbose
>= 5) {
3434 char oldnumbuf
[6], newnumbuf
[6];
3436 nicenum(old_class_space
, oldnumbuf
);
3437 nicenum(new_class_space
, newnumbuf
);
3438 (void) printf("%s grew from %s to %s\n",
3439 spa
->spa_name
, oldnumbuf
, newnumbuf
);
3442 spa_config_exit(spa
, SCL_STATE
, spa
);
3443 mutex_exit(&ztest_vdev_lock
);
3447 * Verify that dmu_objset_{create,destroy,open,close} work as expected.
3451 ztest_objset_create_cb(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
)
3454 * Create the objects common to all ztest datasets.
3456 VERIFY(zap_create_claim(os
, ZTEST_DIROBJ
,
3457 DMU_OT_ZAP_OTHER
, DMU_OT_NONE
, 0, tx
) == 0);
3461 ztest_dataset_create(char *dsname
)
3463 uint64_t zilset
= ztest_random(100);
3464 int err
= dmu_objset_create(dsname
, DMU_OST_OTHER
, 0,
3465 ztest_objset_create_cb
, NULL
);
3467 if (err
|| zilset
< 80)
3470 if (ztest_opts
.zo_verbose
>= 5)
3471 (void) printf("Setting dataset %s to sync always\n", dsname
);
3472 return (ztest_dsl_prop_set_uint64(dsname
, ZFS_PROP_SYNC
,
3473 ZFS_SYNC_ALWAYS
, B_FALSE
));
3478 ztest_objset_destroy_cb(const char *name
, void *arg
)
3481 dmu_object_info_t doi
;
3485 * Verify that the dataset contains a directory object.
3487 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_TRUE
, FTAG
, &os
));
3488 error
= dmu_object_info(os
, ZTEST_DIROBJ
, &doi
);
3489 if (error
!= ENOENT
) {
3490 /* We could have crashed in the middle of destroying it */
3492 ASSERT3U(doi
.doi_type
, ==, DMU_OT_ZAP_OTHER
);
3493 ASSERT3S(doi
.doi_physical_blocks_512
, >=, 0);
3495 dmu_objset_disown(os
, FTAG
);
3498 * Destroy the dataset.
3500 if (strchr(name
, '@') != NULL
) {
3501 VERIFY0(dsl_destroy_snapshot(name
, B_FALSE
));
3503 VERIFY0(dsl_destroy_head(name
));
3509 ztest_snapshot_create(char *osname
, uint64_t id
)
3511 char snapname
[ZFS_MAX_DATASET_NAME_LEN
];
3514 (void) snprintf(snapname
, sizeof (snapname
), "%llu", (u_longlong_t
)id
);
3516 error
= dmu_objset_snapshot_one(osname
, snapname
);
3517 if (error
== ENOSPC
) {
3518 ztest_record_enospc(FTAG
);
3521 if (error
!= 0 && error
!= EEXIST
) {
3522 fatal(0, "ztest_snapshot_create(%s@%s) = %d", osname
,
3529 ztest_snapshot_destroy(char *osname
, uint64_t id
)
3531 char snapname
[ZFS_MAX_DATASET_NAME_LEN
];
3534 (void) snprintf(snapname
, sizeof (snapname
), "%s@%llu", osname
,
3537 error
= dsl_destroy_snapshot(snapname
, B_FALSE
);
3538 if (error
!= 0 && error
!= ENOENT
)
3539 fatal(0, "ztest_snapshot_destroy(%s) = %d", snapname
, error
);
3545 ztest_dmu_objset_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
3551 char name
[ZFS_MAX_DATASET_NAME_LEN
];
3555 zdtmp
= umem_alloc(sizeof (ztest_ds_t
), UMEM_NOFAIL
);
3557 (void) rw_rdlock(&ztest_name_lock
);
3559 (void) snprintf(name
, sizeof (name
), "%s/temp_%llu",
3560 ztest_opts
.zo_pool
, (u_longlong_t
)id
);
3563 * If this dataset exists from a previous run, process its replay log
3564 * half of the time. If we don't replay it, then dsl_destroy_head()
3565 * (invoked from ztest_objset_destroy_cb()) should just throw it away.
3567 if (ztest_random(2) == 0 &&
3568 dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os
) == 0) {
3569 ztest_zd_init(zdtmp
, NULL
, os
);
3570 zil_replay(os
, zdtmp
, ztest_replay_vector
);
3571 ztest_zd_fini(zdtmp
);
3572 dmu_objset_disown(os
, FTAG
);
3576 * There may be an old instance of the dataset we're about to
3577 * create lying around from a previous run. If so, destroy it
3578 * and all of its snapshots.
3580 (void) dmu_objset_find(name
, ztest_objset_destroy_cb
, NULL
,
3581 DS_FIND_CHILDREN
| DS_FIND_SNAPSHOTS
);
3584 * Verify that the destroyed dataset is no longer in the namespace.
3586 VERIFY3U(ENOENT
, ==, dmu_objset_own(name
, DMU_OST_OTHER
, B_TRUE
,
3590 * Verify that we can create a new dataset.
3592 error
= ztest_dataset_create(name
);
3594 if (error
== ENOSPC
) {
3595 ztest_record_enospc(FTAG
);
3598 fatal(0, "dmu_objset_create(%s) = %d", name
, error
);
3601 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os
));
3603 ztest_zd_init(zdtmp
, NULL
, os
);
3606 * Open the intent log for it.
3608 zilog
= zil_open(os
, ztest_get_data
);
3611 * Put some objects in there, do a little I/O to them,
3612 * and randomly take a couple of snapshots along the way.
3614 iters
= ztest_random(5);
3615 for (i
= 0; i
< iters
; i
++) {
3616 ztest_dmu_object_alloc_free(zdtmp
, id
);
3617 if (ztest_random(iters
) == 0)
3618 (void) ztest_snapshot_create(name
, i
);
3622 * Verify that we cannot create an existing dataset.
3624 VERIFY3U(EEXIST
, ==,
3625 dmu_objset_create(name
, DMU_OST_OTHER
, 0, NULL
, NULL
));
3628 * Verify that we can hold an objset that is also owned.
3630 VERIFY3U(0, ==, dmu_objset_hold(name
, FTAG
, &os2
));
3631 dmu_objset_rele(os2
, FTAG
);
3634 * Verify that we cannot own an objset that is already owned.
3637 dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os2
));
3640 dmu_objset_disown(os
, FTAG
);
3641 ztest_zd_fini(zdtmp
);
3643 (void) rw_unlock(&ztest_name_lock
);
3645 umem_free(zdtmp
, sizeof (ztest_ds_t
));
3649 * Verify that dmu_snapshot_{create,destroy,open,close} work as expected.
3652 ztest_dmu_snapshot_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
3654 (void) rw_rdlock(&ztest_name_lock
);
3655 (void) ztest_snapshot_destroy(zd
->zd_name
, id
);
3656 (void) ztest_snapshot_create(zd
->zd_name
, id
);
3657 (void) rw_unlock(&ztest_name_lock
);
3661 * Cleanup non-standard snapshots and clones.
3664 ztest_dsl_dataset_cleanup(char *osname
, uint64_t id
)
3673 snap1name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3674 clone1name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3675 snap2name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3676 clone2name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3677 snap3name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3679 (void) snprintf(snap1name
, ZFS_MAX_DATASET_NAME_LEN
,
3680 "%s@s1_%llu", osname
, (u_longlong_t
)id
);
3681 (void) snprintf(clone1name
, ZFS_MAX_DATASET_NAME_LEN
,
3682 "%s/c1_%llu", osname
, (u_longlong_t
)id
);
3683 (void) snprintf(snap2name
, ZFS_MAX_DATASET_NAME_LEN
,
3684 "%s@s2_%llu", clone1name
, (u_longlong_t
)id
);
3685 (void) snprintf(clone2name
, ZFS_MAX_DATASET_NAME_LEN
,
3686 "%s/c2_%llu", osname
, (u_longlong_t
)id
);
3687 (void) snprintf(snap3name
, ZFS_MAX_DATASET_NAME_LEN
,
3688 "%s@s3_%llu", clone1name
, (u_longlong_t
)id
);
3690 error
= dsl_destroy_head(clone2name
);
3691 if (error
&& error
!= ENOENT
)
3692 fatal(0, "dsl_destroy_head(%s) = %d", clone2name
, error
);
3693 error
= dsl_destroy_snapshot(snap3name
, B_FALSE
);
3694 if (error
&& error
!= ENOENT
)
3695 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap3name
, error
);
3696 error
= dsl_destroy_snapshot(snap2name
, B_FALSE
);
3697 if (error
&& error
!= ENOENT
)
3698 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap2name
, error
);
3699 error
= dsl_destroy_head(clone1name
);
3700 if (error
&& error
!= ENOENT
)
3701 fatal(0, "dsl_destroy_head(%s) = %d", clone1name
, error
);
3702 error
= dsl_destroy_snapshot(snap1name
, B_FALSE
);
3703 if (error
&& error
!= ENOENT
)
3704 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap1name
, error
);
3706 umem_free(snap1name
, ZFS_MAX_DATASET_NAME_LEN
);
3707 umem_free(clone1name
, ZFS_MAX_DATASET_NAME_LEN
);
3708 umem_free(snap2name
, ZFS_MAX_DATASET_NAME_LEN
);
3709 umem_free(clone2name
, ZFS_MAX_DATASET_NAME_LEN
);
3710 umem_free(snap3name
, ZFS_MAX_DATASET_NAME_LEN
);
3714 * Verify dsl_dataset_promote handles EBUSY
3717 ztest_dsl_dataset_promote_busy(ztest_ds_t
*zd
, uint64_t id
)
3725 char *osname
= zd
->zd_name
;
3728 snap1name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3729 clone1name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3730 snap2name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3731 clone2name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3732 snap3name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3734 (void) rw_rdlock(&ztest_name_lock
);
3736 ztest_dsl_dataset_cleanup(osname
, id
);
3738 (void) snprintf(snap1name
, ZFS_MAX_DATASET_NAME_LEN
,
3739 "%s@s1_%llu", osname
, (u_longlong_t
)id
);
3740 (void) snprintf(clone1name
, ZFS_MAX_DATASET_NAME_LEN
,
3741 "%s/c1_%llu", osname
, (u_longlong_t
)id
);
3742 (void) snprintf(snap2name
, ZFS_MAX_DATASET_NAME_LEN
,
3743 "%s@s2_%llu", clone1name
, (u_longlong_t
)id
);
3744 (void) snprintf(clone2name
, ZFS_MAX_DATASET_NAME_LEN
,
3745 "%s/c2_%llu", osname
, (u_longlong_t
)id
);
3746 (void) snprintf(snap3name
, ZFS_MAX_DATASET_NAME_LEN
,
3747 "%s@s3_%llu", clone1name
, (u_longlong_t
)id
);
3749 error
= dmu_objset_snapshot_one(osname
, strchr(snap1name
, '@') + 1);
3750 if (error
&& error
!= EEXIST
) {
3751 if (error
== ENOSPC
) {
3752 ztest_record_enospc(FTAG
);
3755 fatal(0, "dmu_take_snapshot(%s) = %d", snap1name
, error
);
3758 error
= dmu_objset_clone(clone1name
, snap1name
);
3760 if (error
== ENOSPC
) {
3761 ztest_record_enospc(FTAG
);
3764 fatal(0, "dmu_objset_create(%s) = %d", clone1name
, error
);
3767 error
= dmu_objset_snapshot_one(clone1name
, strchr(snap2name
, '@') + 1);
3768 if (error
&& error
!= EEXIST
) {
3769 if (error
== ENOSPC
) {
3770 ztest_record_enospc(FTAG
);
3773 fatal(0, "dmu_open_snapshot(%s) = %d", snap2name
, error
);
3776 error
= dmu_objset_snapshot_one(clone1name
, strchr(snap3name
, '@') + 1);
3777 if (error
&& error
!= EEXIST
) {
3778 if (error
== ENOSPC
) {
3779 ztest_record_enospc(FTAG
);
3782 fatal(0, "dmu_open_snapshot(%s) = %d", snap3name
, error
);
3785 error
= dmu_objset_clone(clone2name
, snap3name
);
3787 if (error
== ENOSPC
) {
3788 ztest_record_enospc(FTAG
);
3791 fatal(0, "dmu_objset_create(%s) = %d", clone2name
, error
);
3794 error
= dmu_objset_own(snap2name
, DMU_OST_ANY
, B_TRUE
, FTAG
, &os
);
3796 fatal(0, "dmu_objset_own(%s) = %d", snap2name
, error
);
3797 error
= dsl_dataset_promote(clone2name
, NULL
);
3798 if (error
== ENOSPC
) {
3799 dmu_objset_disown(os
, FTAG
);
3800 ztest_record_enospc(FTAG
);
3804 fatal(0, "dsl_dataset_promote(%s), %d, not EBUSY", clone2name
,
3806 dmu_objset_disown(os
, FTAG
);
3809 ztest_dsl_dataset_cleanup(osname
, id
);
3811 (void) rw_unlock(&ztest_name_lock
);
3813 umem_free(snap1name
, ZFS_MAX_DATASET_NAME_LEN
);
3814 umem_free(clone1name
, ZFS_MAX_DATASET_NAME_LEN
);
3815 umem_free(snap2name
, ZFS_MAX_DATASET_NAME_LEN
);
3816 umem_free(clone2name
, ZFS_MAX_DATASET_NAME_LEN
);
3817 umem_free(snap3name
, ZFS_MAX_DATASET_NAME_LEN
);
3820 #undef OD_ARRAY_SIZE
3821 #define OD_ARRAY_SIZE 4
3824 * Verify that dmu_object_{alloc,free} work as expected.
3827 ztest_dmu_object_alloc_free(ztest_ds_t
*zd
, uint64_t id
)
3834 size
= sizeof (ztest_od_t
) * OD_ARRAY_SIZE
;
3835 od
= umem_alloc(size
, UMEM_NOFAIL
);
3836 batchsize
= OD_ARRAY_SIZE
;
3838 for (b
= 0; b
< batchsize
; b
++)
3839 ztest_od_init(od
+ b
, id
, FTAG
, b
, DMU_OT_UINT64_OTHER
,
3843 * Destroy the previous batch of objects, create a new batch,
3844 * and do some I/O on the new objects.
3846 if (ztest_object_init(zd
, od
, size
, B_TRUE
) != 0)
3849 while (ztest_random(4 * batchsize
) != 0)
3850 ztest_io(zd
, od
[ztest_random(batchsize
)].od_object
,
3851 ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
3853 umem_free(od
, size
);
3856 #undef OD_ARRAY_SIZE
3857 #define OD_ARRAY_SIZE 2
3860 * Verify that dmu_{read,write} work as expected.
3863 ztest_dmu_read_write(ztest_ds_t
*zd
, uint64_t id
)
3868 objset_t
*os
= zd
->zd_os
;
3869 size
= sizeof (ztest_od_t
) * OD_ARRAY_SIZE
;
3870 od
= umem_alloc(size
, UMEM_NOFAIL
);
3872 int i
, freeit
, error
;
3874 bufwad_t
*packbuf
, *bigbuf
, *pack
, *bigH
, *bigT
;
3875 uint64_t packobj
, packoff
, packsize
, bigobj
, bigoff
, bigsize
;
3876 uint64_t chunksize
= (1000 + ztest_random(1000)) * sizeof (uint64_t);
3877 uint64_t regions
= 997;
3878 uint64_t stride
= 123456789ULL;
3879 uint64_t width
= 40;
3880 int free_percent
= 5;
3883 * This test uses two objects, packobj and bigobj, that are always
3884 * updated together (i.e. in the same tx) so that their contents are
3885 * in sync and can be compared. Their contents relate to each other
3886 * in a simple way: packobj is a dense array of 'bufwad' structures,
3887 * while bigobj is a sparse array of the same bufwads. Specifically,
3888 * for any index n, there are three bufwads that should be identical:
3890 * packobj, at offset n * sizeof (bufwad_t)
3891 * bigobj, at the head of the nth chunk
3892 * bigobj, at the tail of the nth chunk
3894 * The chunk size is arbitrary. It doesn't have to be a power of two,
3895 * and it doesn't have any relation to the object blocksize.
3896 * The only requirement is that it can hold at least two bufwads.
3898 * Normally, we write the bufwad to each of these locations.
3899 * However, free_percent of the time we instead write zeroes to
3900 * packobj and perform a dmu_free_range() on bigobj. By comparing
3901 * bigobj to packobj, we can verify that the DMU is correctly
3902 * tracking which parts of an object are allocated and free,
3903 * and that the contents of the allocated blocks are correct.
3907 * Read the directory info. If it's the first time, set things up.
3909 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0, chunksize
);
3910 ztest_od_init(od
+ 1, id
, FTAG
, 1, DMU_OT_UINT64_OTHER
, 0, 0,
3913 if (ztest_object_init(zd
, od
, size
, B_FALSE
) != 0) {
3914 umem_free(od
, size
);
3918 bigobj
= od
[0].od_object
;
3919 packobj
= od
[1].od_object
;
3920 chunksize
= od
[0].od_gen
;
3921 ASSERT(chunksize
== od
[1].od_gen
);
3924 * Prefetch a random chunk of the big object.
3925 * Our aim here is to get some async reads in flight
3926 * for blocks that we may free below; the DMU should
3927 * handle this race correctly.
3929 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
3930 s
= 1 + ztest_random(2 * width
- 1);
3931 dmu_prefetch(os
, bigobj
, 0, n
* chunksize
, s
* chunksize
,
3932 ZIO_PRIORITY_SYNC_READ
);
3935 * Pick a random index and compute the offsets into packobj and bigobj.
3937 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
3938 s
= 1 + ztest_random(width
- 1);
3940 packoff
= n
* sizeof (bufwad_t
);
3941 packsize
= s
* sizeof (bufwad_t
);
3943 bigoff
= n
* chunksize
;
3944 bigsize
= s
* chunksize
;
3946 packbuf
= umem_alloc(packsize
, UMEM_NOFAIL
);
3947 bigbuf
= umem_alloc(bigsize
, UMEM_NOFAIL
);
3950 * free_percent of the time, free a range of bigobj rather than
3953 freeit
= (ztest_random(100) < free_percent
);
3956 * Read the current contents of our objects.
3958 error
= dmu_read(os
, packobj
, packoff
, packsize
, packbuf
,
3961 error
= dmu_read(os
, bigobj
, bigoff
, bigsize
, bigbuf
,
3966 * Get a tx for the mods to both packobj and bigobj.
3968 tx
= dmu_tx_create(os
);
3970 dmu_tx_hold_write(tx
, packobj
, packoff
, packsize
);
3973 dmu_tx_hold_free(tx
, bigobj
, bigoff
, bigsize
);
3975 dmu_tx_hold_write(tx
, bigobj
, bigoff
, bigsize
);
3977 /* This accounts for setting the checksum/compression. */
3978 dmu_tx_hold_bonus(tx
, bigobj
);
3980 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
3982 umem_free(packbuf
, packsize
);
3983 umem_free(bigbuf
, bigsize
);
3984 umem_free(od
, size
);
3988 enum zio_checksum cksum
;
3990 cksum
= (enum zio_checksum
)
3991 ztest_random_dsl_prop(ZFS_PROP_CHECKSUM
);
3992 } while (cksum
>= ZIO_CHECKSUM_LEGACY_FUNCTIONS
);
3993 dmu_object_set_checksum(os
, bigobj
, cksum
, tx
);
3995 enum zio_compress comp
;
3997 comp
= (enum zio_compress
)
3998 ztest_random_dsl_prop(ZFS_PROP_COMPRESSION
);
3999 } while (comp
>= ZIO_COMPRESS_LEGACY_FUNCTIONS
);
4000 dmu_object_set_compress(os
, bigobj
, comp
, tx
);
4003 * For each index from n to n + s, verify that the existing bufwad
4004 * in packobj matches the bufwads at the head and tail of the
4005 * corresponding chunk in bigobj. Then update all three bufwads
4006 * with the new values we want to write out.
4008 for (i
= 0; i
< s
; i
++) {
4010 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
4012 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* chunksize
);
4014 bigT
= (bufwad_t
*)((char *)bigH
+ chunksize
) - 1;
4016 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
4017 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
4019 if (pack
->bw_txg
> txg
)
4020 fatal(0, "future leak: got %llx, open txg is %llx",
4023 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
4024 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
4025 pack
->bw_index
, n
, i
);
4027 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
4028 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
4030 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
4031 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
4034 bzero(pack
, sizeof (bufwad_t
));
4036 pack
->bw_index
= n
+ i
;
4038 pack
->bw_data
= 1 + ztest_random(-2ULL);
4045 * We've verified all the old bufwads, and made new ones.
4046 * Now write them out.
4048 dmu_write(os
, packobj
, packoff
, packsize
, packbuf
, tx
);
4051 if (ztest_opts
.zo_verbose
>= 7) {
4052 (void) printf("freeing offset %llx size %llx"
4054 (u_longlong_t
)bigoff
,
4055 (u_longlong_t
)bigsize
,
4058 VERIFY(0 == dmu_free_range(os
, bigobj
, bigoff
, bigsize
, tx
));
4060 if (ztest_opts
.zo_verbose
>= 7) {
4061 (void) printf("writing offset %llx size %llx"
4063 (u_longlong_t
)bigoff
,
4064 (u_longlong_t
)bigsize
,
4067 dmu_write(os
, bigobj
, bigoff
, bigsize
, bigbuf
, tx
);
4073 * Sanity check the stuff we just wrote.
4076 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
4077 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
4079 VERIFY(0 == dmu_read(os
, packobj
, packoff
,
4080 packsize
, packcheck
, DMU_READ_PREFETCH
));
4081 VERIFY(0 == dmu_read(os
, bigobj
, bigoff
,
4082 bigsize
, bigcheck
, DMU_READ_PREFETCH
));
4084 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
4085 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
4087 umem_free(packcheck
, packsize
);
4088 umem_free(bigcheck
, bigsize
);
4091 umem_free(packbuf
, packsize
);
4092 umem_free(bigbuf
, bigsize
);
4093 umem_free(od
, size
);
4097 compare_and_update_pbbufs(uint64_t s
, bufwad_t
*packbuf
, bufwad_t
*bigbuf
,
4098 uint64_t bigsize
, uint64_t n
, uint64_t chunksize
, uint64_t txg
)
4106 * For each index from n to n + s, verify that the existing bufwad
4107 * in packobj matches the bufwads at the head and tail of the
4108 * corresponding chunk in bigobj. Then update all three bufwads
4109 * with the new values we want to write out.
4111 for (i
= 0; i
< s
; i
++) {
4113 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
4115 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* chunksize
);
4117 bigT
= (bufwad_t
*)((char *)bigH
+ chunksize
) - 1;
4119 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
4120 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
4122 if (pack
->bw_txg
> txg
)
4123 fatal(0, "future leak: got %llx, open txg is %llx",
4126 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
4127 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
4128 pack
->bw_index
, n
, i
);
4130 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
4131 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
4133 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
4134 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
4136 pack
->bw_index
= n
+ i
;
4138 pack
->bw_data
= 1 + ztest_random(-2ULL);
4145 #undef OD_ARRAY_SIZE
4146 #define OD_ARRAY_SIZE 2
4149 ztest_dmu_read_write_zcopy(ztest_ds_t
*zd
, uint64_t id
)
4151 objset_t
*os
= zd
->zd_os
;
4158 bufwad_t
*packbuf
, *bigbuf
;
4159 uint64_t packobj
, packoff
, packsize
, bigobj
, bigoff
, bigsize
;
4160 uint64_t blocksize
= ztest_random_blocksize();
4161 uint64_t chunksize
= blocksize
;
4162 uint64_t regions
= 997;
4163 uint64_t stride
= 123456789ULL;
4165 dmu_buf_t
*bonus_db
;
4166 arc_buf_t
**bigbuf_arcbufs
;
4167 dmu_object_info_t doi
;
4169 size
= sizeof (ztest_od_t
) * OD_ARRAY_SIZE
;
4170 od
= umem_alloc(size
, UMEM_NOFAIL
);
4173 * This test uses two objects, packobj and bigobj, that are always
4174 * updated together (i.e. in the same tx) so that their contents are
4175 * in sync and can be compared. Their contents relate to each other
4176 * in a simple way: packobj is a dense array of 'bufwad' structures,
4177 * while bigobj is a sparse array of the same bufwads. Specifically,
4178 * for any index n, there are three bufwads that should be identical:
4180 * packobj, at offset n * sizeof (bufwad_t)
4181 * bigobj, at the head of the nth chunk
4182 * bigobj, at the tail of the nth chunk
4184 * The chunk size is set equal to bigobj block size so that
4185 * dmu_assign_arcbuf() can be tested for object updates.
4189 * Read the directory info. If it's the first time, set things up.
4191 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0, 0);
4192 ztest_od_init(od
+ 1, id
, FTAG
, 1, DMU_OT_UINT64_OTHER
, 0, 0,
4196 if (ztest_object_init(zd
, od
, size
, B_FALSE
) != 0) {
4197 umem_free(od
, size
);
4201 bigobj
= od
[0].od_object
;
4202 packobj
= od
[1].od_object
;
4203 blocksize
= od
[0].od_blocksize
;
4204 chunksize
= blocksize
;
4205 ASSERT(chunksize
== od
[1].od_gen
);
4207 VERIFY(dmu_object_info(os
, bigobj
, &doi
) == 0);
4208 VERIFY(ISP2(doi
.doi_data_block_size
));
4209 VERIFY(chunksize
== doi
.doi_data_block_size
);
4210 VERIFY(chunksize
>= 2 * sizeof (bufwad_t
));
4213 * Pick a random index and compute the offsets into packobj and bigobj.
4215 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
4216 s
= 1 + ztest_random(width
- 1);
4218 packoff
= n
* sizeof (bufwad_t
);
4219 packsize
= s
* sizeof (bufwad_t
);
4221 bigoff
= n
* chunksize
;
4222 bigsize
= s
* chunksize
;
4224 packbuf
= umem_zalloc(packsize
, UMEM_NOFAIL
);
4225 bigbuf
= umem_zalloc(bigsize
, UMEM_NOFAIL
);
4227 VERIFY3U(0, ==, dmu_bonus_hold(os
, bigobj
, FTAG
, &bonus_db
));
4229 bigbuf_arcbufs
= umem_zalloc(2 * s
* sizeof (arc_buf_t
*), UMEM_NOFAIL
);
4232 * Iteration 0 test zcopy for DB_UNCACHED dbufs.
4233 * Iteration 1 test zcopy to already referenced dbufs.
4234 * Iteration 2 test zcopy to dirty dbuf in the same txg.
4235 * Iteration 3 test zcopy to dbuf dirty in previous txg.
4236 * Iteration 4 test zcopy when dbuf is no longer dirty.
4237 * Iteration 5 test zcopy when it can't be done.
4238 * Iteration 6 one more zcopy write.
4240 for (i
= 0; i
< 7; i
++) {
4245 * In iteration 5 (i == 5) use arcbufs
4246 * that don't match bigobj blksz to test
4247 * dmu_assign_arcbuf() when it can't directly
4248 * assign an arcbuf to a dbuf.
4250 for (j
= 0; j
< s
; j
++) {
4251 if (i
!= 5 || chunksize
< (SPA_MINBLOCKSIZE
* 2)) {
4253 dmu_request_arcbuf(bonus_db
, chunksize
);
4255 bigbuf_arcbufs
[2 * j
] =
4256 dmu_request_arcbuf(bonus_db
, chunksize
/ 2);
4257 bigbuf_arcbufs
[2 * j
+ 1] =
4258 dmu_request_arcbuf(bonus_db
, chunksize
/ 2);
4263 * Get a tx for the mods to both packobj and bigobj.
4265 tx
= dmu_tx_create(os
);
4267 dmu_tx_hold_write(tx
, packobj
, packoff
, packsize
);
4268 dmu_tx_hold_write(tx
, bigobj
, bigoff
, bigsize
);
4270 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4272 umem_free(packbuf
, packsize
);
4273 umem_free(bigbuf
, bigsize
);
4274 for (j
= 0; j
< s
; j
++) {
4276 chunksize
< (SPA_MINBLOCKSIZE
* 2)) {
4277 dmu_return_arcbuf(bigbuf_arcbufs
[j
]);
4280 bigbuf_arcbufs
[2 * j
]);
4282 bigbuf_arcbufs
[2 * j
+ 1]);
4285 umem_free(bigbuf_arcbufs
, 2 * s
* sizeof (arc_buf_t
*));
4286 umem_free(od
, size
);
4287 dmu_buf_rele(bonus_db
, FTAG
);
4292 * 50% of the time don't read objects in the 1st iteration to
4293 * test dmu_assign_arcbuf() for the case when there're no
4294 * existing dbufs for the specified offsets.
4296 if (i
!= 0 || ztest_random(2) != 0) {
4297 error
= dmu_read(os
, packobj
, packoff
,
4298 packsize
, packbuf
, DMU_READ_PREFETCH
);
4300 error
= dmu_read(os
, bigobj
, bigoff
, bigsize
,
4301 bigbuf
, DMU_READ_PREFETCH
);
4304 compare_and_update_pbbufs(s
, packbuf
, bigbuf
, bigsize
,
4308 * We've verified all the old bufwads, and made new ones.
4309 * Now write them out.
4311 dmu_write(os
, packobj
, packoff
, packsize
, packbuf
, tx
);
4312 if (ztest_opts
.zo_verbose
>= 7) {
4313 (void) printf("writing offset %llx size %llx"
4315 (u_longlong_t
)bigoff
,
4316 (u_longlong_t
)bigsize
,
4319 for (off
= bigoff
, j
= 0; j
< s
; j
++, off
+= chunksize
) {
4321 if (i
!= 5 || chunksize
< (SPA_MINBLOCKSIZE
* 2)) {
4322 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
),
4323 bigbuf_arcbufs
[j
]->b_data
, chunksize
);
4325 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
),
4326 bigbuf_arcbufs
[2 * j
]->b_data
,
4328 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
) +
4330 bigbuf_arcbufs
[2 * j
+ 1]->b_data
,
4335 VERIFY(dmu_buf_hold(os
, bigobj
, off
,
4336 FTAG
, &dbt
, DMU_READ_NO_PREFETCH
) == 0);
4338 if (i
!= 5 || chunksize
< (SPA_MINBLOCKSIZE
* 2)) {
4339 dmu_assign_arcbuf(bonus_db
, off
,
4340 bigbuf_arcbufs
[j
], tx
);
4342 dmu_assign_arcbuf(bonus_db
, off
,
4343 bigbuf_arcbufs
[2 * j
], tx
);
4344 dmu_assign_arcbuf(bonus_db
,
4345 off
+ chunksize
/ 2,
4346 bigbuf_arcbufs
[2 * j
+ 1], tx
);
4349 dmu_buf_rele(dbt
, FTAG
);
4355 * Sanity check the stuff we just wrote.
4358 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
4359 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
4361 VERIFY(0 == dmu_read(os
, packobj
, packoff
,
4362 packsize
, packcheck
, DMU_READ_PREFETCH
));
4363 VERIFY(0 == dmu_read(os
, bigobj
, bigoff
,
4364 bigsize
, bigcheck
, DMU_READ_PREFETCH
));
4366 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
4367 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
4369 umem_free(packcheck
, packsize
);
4370 umem_free(bigcheck
, bigsize
);
4373 txg_wait_open(dmu_objset_pool(os
), 0);
4374 } else if (i
== 3) {
4375 txg_wait_synced(dmu_objset_pool(os
), 0);
4379 dmu_buf_rele(bonus_db
, FTAG
);
4380 umem_free(packbuf
, packsize
);
4381 umem_free(bigbuf
, bigsize
);
4382 umem_free(bigbuf_arcbufs
, 2 * s
* sizeof (arc_buf_t
*));
4383 umem_free(od
, size
);
4388 ztest_dmu_write_parallel(ztest_ds_t
*zd
, uint64_t id
)
4392 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4393 uint64_t offset
= (1ULL << (ztest_random(20) + 43)) +
4394 (ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
4397 * Have multiple threads write to large offsets in an object
4398 * to verify that parallel writes to an object -- even to the
4399 * same blocks within the object -- doesn't cause any trouble.
4401 ztest_od_init(od
, ID_PARALLEL
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0, 0);
4403 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0)
4406 while (ztest_random(10) != 0)
4407 ztest_io(zd
, od
->od_object
, offset
);
4409 umem_free(od
, sizeof (ztest_od_t
));
4413 ztest_dmu_prealloc(ztest_ds_t
*zd
, uint64_t id
)
4416 uint64_t offset
= (1ULL << (ztest_random(4) + SPA_MAXBLOCKSHIFT
)) +
4417 (ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
4418 uint64_t count
= ztest_random(20) + 1;
4419 uint64_t blocksize
= ztest_random_blocksize();
4422 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4424 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0, 0);
4426 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
),
4427 !ztest_random(2)) != 0) {
4428 umem_free(od
, sizeof (ztest_od_t
));
4432 if (ztest_truncate(zd
, od
->od_object
, offset
, count
* blocksize
) != 0) {
4433 umem_free(od
, sizeof (ztest_od_t
));
4437 ztest_prealloc(zd
, od
->od_object
, offset
, count
* blocksize
);
4439 data
= umem_zalloc(blocksize
, UMEM_NOFAIL
);
4441 while (ztest_random(count
) != 0) {
4442 uint64_t randoff
= offset
+ (ztest_random(count
) * blocksize
);
4443 if (ztest_write(zd
, od
->od_object
, randoff
, blocksize
,
4446 while (ztest_random(4) != 0)
4447 ztest_io(zd
, od
->od_object
, randoff
);
4450 umem_free(data
, blocksize
);
4451 umem_free(od
, sizeof (ztest_od_t
));
4455 * Verify that zap_{create,destroy,add,remove,update} work as expected.
4457 #define ZTEST_ZAP_MIN_INTS 1
4458 #define ZTEST_ZAP_MAX_INTS 4
4459 #define ZTEST_ZAP_MAX_PROPS 1000
4462 ztest_zap(ztest_ds_t
*zd
, uint64_t id
)
4464 objset_t
*os
= zd
->zd_os
;
4467 uint64_t txg
, last_txg
;
4468 uint64_t value
[ZTEST_ZAP_MAX_INTS
];
4469 uint64_t zl_ints
, zl_intsize
, prop
;
4472 char propname
[100], txgname
[100];
4474 char *hc
[2] = { "s.acl.h", ".s.open.h.hyLZlg" };
4476 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4477 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_ZAP_OTHER
, 0, 0, 0);
4479 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
),
4480 !ztest_random(2)) != 0)
4483 object
= od
->od_object
;
4486 * Generate a known hash collision, and verify that
4487 * we can lookup and remove both entries.
4489 tx
= dmu_tx_create(os
);
4490 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4491 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4494 for (i
= 0; i
< 2; i
++) {
4496 VERIFY3U(0, ==, zap_add(os
, object
, hc
[i
], sizeof (uint64_t),
4499 for (i
= 0; i
< 2; i
++) {
4500 VERIFY3U(EEXIST
, ==, zap_add(os
, object
, hc
[i
],
4501 sizeof (uint64_t), 1, &value
[i
], tx
));
4503 zap_length(os
, object
, hc
[i
], &zl_intsize
, &zl_ints
));
4504 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4505 ASSERT3U(zl_ints
, ==, 1);
4507 for (i
= 0; i
< 2; i
++) {
4508 VERIFY3U(0, ==, zap_remove(os
, object
, hc
[i
], tx
));
4513 * Generate a buch of random entries.
4515 ints
= MAX(ZTEST_ZAP_MIN_INTS
, object
% ZTEST_ZAP_MAX_INTS
);
4517 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
4518 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
4519 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
4520 bzero(value
, sizeof (value
));
4524 * If these zap entries already exist, validate their contents.
4526 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
4528 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4529 ASSERT3U(zl_ints
, ==, 1);
4531 VERIFY(zap_lookup(os
, object
, txgname
, zl_intsize
,
4532 zl_ints
, &last_txg
) == 0);
4534 VERIFY(zap_length(os
, object
, propname
, &zl_intsize
,
4537 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4538 ASSERT3U(zl_ints
, ==, ints
);
4540 VERIFY(zap_lookup(os
, object
, propname
, zl_intsize
,
4541 zl_ints
, value
) == 0);
4543 for (i
= 0; i
< ints
; i
++) {
4544 ASSERT3U(value
[i
], ==, last_txg
+ object
+ i
);
4547 ASSERT3U(error
, ==, ENOENT
);
4551 * Atomically update two entries in our zap object.
4552 * The first is named txg_%llu, and contains the txg
4553 * in which the property was last updated. The second
4554 * is named prop_%llu, and the nth element of its value
4555 * should be txg + object + n.
4557 tx
= dmu_tx_create(os
);
4558 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4559 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4564 fatal(0, "zap future leak: old %llu new %llu", last_txg
, txg
);
4566 for (i
= 0; i
< ints
; i
++)
4567 value
[i
] = txg
+ object
+ i
;
4569 VERIFY3U(0, ==, zap_update(os
, object
, txgname
, sizeof (uint64_t),
4571 VERIFY3U(0, ==, zap_update(os
, object
, propname
, sizeof (uint64_t),
4577 * Remove a random pair of entries.
4579 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
4580 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
4581 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
4583 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
4585 if (error
== ENOENT
)
4590 tx
= dmu_tx_create(os
);
4591 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4592 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4595 VERIFY3U(0, ==, zap_remove(os
, object
, txgname
, tx
));
4596 VERIFY3U(0, ==, zap_remove(os
, object
, propname
, tx
));
4599 umem_free(od
, sizeof (ztest_od_t
));
4603 * Testcase to test the upgrading of a microzap to fatzap.
4606 ztest_fzap(ztest_ds_t
*zd
, uint64_t id
)
4608 objset_t
*os
= zd
->zd_os
;
4610 uint64_t object
, txg
;
4613 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4614 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_ZAP_OTHER
, 0, 0, 0);
4616 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
),
4617 !ztest_random(2)) != 0)
4619 object
= od
->od_object
;
4622 * Add entries to this ZAP and make sure it spills over
4623 * and gets upgraded to a fatzap. Also, since we are adding
4624 * 2050 entries we should see ptrtbl growth and leaf-block split.
4626 for (i
= 0; i
< 2050; i
++) {
4627 char name
[ZFS_MAX_DATASET_NAME_LEN
];
4632 (void) snprintf(name
, sizeof (name
), "fzap-%llu-%llu",
4633 (u_longlong_t
)id
, (u_longlong_t
)value
);
4635 tx
= dmu_tx_create(os
);
4636 dmu_tx_hold_zap(tx
, object
, B_TRUE
, name
);
4637 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4640 error
= zap_add(os
, object
, name
, sizeof (uint64_t), 1,
4642 ASSERT(error
== 0 || error
== EEXIST
);
4646 umem_free(od
, sizeof (ztest_od_t
));
4651 ztest_zap_parallel(ztest_ds_t
*zd
, uint64_t id
)
4653 objset_t
*os
= zd
->zd_os
;
4655 uint64_t txg
, object
, count
, wsize
, wc
, zl_wsize
, zl_wc
;
4657 int i
, namelen
, error
;
4658 int micro
= ztest_random(2);
4659 char name
[20], string_value
[20];
4662 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4663 ztest_od_init(od
, ID_PARALLEL
, FTAG
, micro
, DMU_OT_ZAP_OTHER
, 0, 0, 0);
4665 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
4666 umem_free(od
, sizeof (ztest_od_t
));
4670 object
= od
->od_object
;
4673 * Generate a random name of the form 'xxx.....' where each
4674 * x is a random printable character and the dots are dots.
4675 * There are 94 such characters, and the name length goes from
4676 * 6 to 20, so there are 94^3 * 15 = 12,458,760 possible names.
4678 namelen
= ztest_random(sizeof (name
) - 5) + 5 + 1;
4680 for (i
= 0; i
< 3; i
++)
4681 name
[i
] = '!' + ztest_random('~' - '!' + 1);
4682 for (; i
< namelen
- 1; i
++)
4686 if ((namelen
& 1) || micro
) {
4687 wsize
= sizeof (txg
);
4693 data
= string_value
;
4697 VERIFY0(zap_count(os
, object
, &count
));
4698 ASSERT(count
!= -1ULL);
4701 * Select an operation: length, lookup, add, update, remove.
4703 i
= ztest_random(5);
4706 tx
= dmu_tx_create(os
);
4707 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4708 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4710 umem_free(od
, sizeof (ztest_od_t
));
4713 bcopy(name
, string_value
, namelen
);
4717 bzero(string_value
, namelen
);
4723 error
= zap_length(os
, object
, name
, &zl_wsize
, &zl_wc
);
4725 ASSERT3U(wsize
, ==, zl_wsize
);
4726 ASSERT3U(wc
, ==, zl_wc
);
4728 ASSERT3U(error
, ==, ENOENT
);
4733 error
= zap_lookup(os
, object
, name
, wsize
, wc
, data
);
4735 if (data
== string_value
&&
4736 bcmp(name
, data
, namelen
) != 0)
4737 fatal(0, "name '%s' != val '%s' len %d",
4738 name
, data
, namelen
);
4740 ASSERT3U(error
, ==, ENOENT
);
4745 error
= zap_add(os
, object
, name
, wsize
, wc
, data
, tx
);
4746 ASSERT(error
== 0 || error
== EEXIST
);
4750 VERIFY(zap_update(os
, object
, name
, wsize
, wc
, data
, tx
) == 0);
4754 error
= zap_remove(os
, object
, name
, tx
);
4755 ASSERT(error
== 0 || error
== ENOENT
);
4762 umem_free(od
, sizeof (ztest_od_t
));
4766 * Commit callback data.
4768 typedef struct ztest_cb_data
{
4769 list_node_t zcd_node
;
4771 int zcd_expected_err
;
4772 boolean_t zcd_added
;
4773 boolean_t zcd_called
;
4777 /* This is the actual commit callback function */
4779 ztest_commit_callback(void *arg
, int error
)
4781 ztest_cb_data_t
*data
= arg
;
4782 uint64_t synced_txg
;
4784 VERIFY(data
!= NULL
);
4785 VERIFY3S(data
->zcd_expected_err
, ==, error
);
4786 VERIFY(!data
->zcd_called
);
4788 synced_txg
= spa_last_synced_txg(data
->zcd_spa
);
4789 if (data
->zcd_txg
> synced_txg
)
4790 fatal(0, "commit callback of txg %" PRIu64
" called prematurely"
4791 ", last synced txg = %" PRIu64
"\n", data
->zcd_txg
,
4794 data
->zcd_called
= B_TRUE
;
4796 if (error
== ECANCELED
) {
4797 ASSERT0(data
->zcd_txg
);
4798 ASSERT(!data
->zcd_added
);
4801 * The private callback data should be destroyed here, but
4802 * since we are going to check the zcd_called field after
4803 * dmu_tx_abort(), we will destroy it there.
4808 ASSERT(data
->zcd_added
);
4809 ASSERT3U(data
->zcd_txg
, !=, 0);
4811 (void) mutex_enter(&zcl
.zcl_callbacks_lock
);
4813 /* See if this cb was called more quickly */
4814 if ((synced_txg
- data
->zcd_txg
) < zc_min_txg_delay
)
4815 zc_min_txg_delay
= synced_txg
- data
->zcd_txg
;
4817 /* Remove our callback from the list */
4818 list_remove(&zcl
.zcl_callbacks
, data
);
4820 (void) mutex_exit(&zcl
.zcl_callbacks_lock
);
4822 umem_free(data
, sizeof (ztest_cb_data_t
));
4825 /* Allocate and initialize callback data structure */
4826 static ztest_cb_data_t
*
4827 ztest_create_cb_data(objset_t
*os
, uint64_t txg
)
4829 ztest_cb_data_t
*cb_data
;
4831 cb_data
= umem_zalloc(sizeof (ztest_cb_data_t
), UMEM_NOFAIL
);
4833 cb_data
->zcd_txg
= txg
;
4834 cb_data
->zcd_spa
= dmu_objset_spa(os
);
4835 list_link_init(&cb_data
->zcd_node
);
4841 * Commit callback test.
4844 ztest_dmu_commit_callbacks(ztest_ds_t
*zd
, uint64_t id
)
4846 objset_t
*os
= zd
->zd_os
;
4849 ztest_cb_data_t
*cb_data
[3], *tmp_cb
;
4850 uint64_t old_txg
, txg
;
4853 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4854 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0, 0);
4856 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
4857 umem_free(od
, sizeof (ztest_od_t
));
4861 tx
= dmu_tx_create(os
);
4863 cb_data
[0] = ztest_create_cb_data(os
, 0);
4864 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[0]);
4866 dmu_tx_hold_write(tx
, od
->od_object
, 0, sizeof (uint64_t));
4868 /* Every once in a while, abort the transaction on purpose */
4869 if (ztest_random(100) == 0)
4873 error
= dmu_tx_assign(tx
, TXG_NOWAIT
);
4875 txg
= error
? 0 : dmu_tx_get_txg(tx
);
4877 cb_data
[0]->zcd_txg
= txg
;
4878 cb_data
[1] = ztest_create_cb_data(os
, txg
);
4879 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[1]);
4883 * It's not a strict requirement to call the registered
4884 * callbacks from inside dmu_tx_abort(), but that's what
4885 * it's supposed to happen in the current implementation
4886 * so we will check for that.
4888 for (i
= 0; i
< 2; i
++) {
4889 cb_data
[i
]->zcd_expected_err
= ECANCELED
;
4890 VERIFY(!cb_data
[i
]->zcd_called
);
4895 for (i
= 0; i
< 2; i
++) {
4896 VERIFY(cb_data
[i
]->zcd_called
);
4897 umem_free(cb_data
[i
], sizeof (ztest_cb_data_t
));
4900 umem_free(od
, sizeof (ztest_od_t
));
4904 cb_data
[2] = ztest_create_cb_data(os
, txg
);
4905 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[2]);
4908 * Read existing data to make sure there isn't a future leak.
4910 VERIFY(0 == dmu_read(os
, od
->od_object
, 0, sizeof (uint64_t),
4911 &old_txg
, DMU_READ_PREFETCH
));
4914 fatal(0, "future leak: got %" PRIu64
", open txg is %" PRIu64
,
4917 dmu_write(os
, od
->od_object
, 0, sizeof (uint64_t), &txg
, tx
);
4919 (void) mutex_enter(&zcl
.zcl_callbacks_lock
);
4922 * Since commit callbacks don't have any ordering requirement and since
4923 * it is theoretically possible for a commit callback to be called
4924 * after an arbitrary amount of time has elapsed since its txg has been
4925 * synced, it is difficult to reliably determine whether a commit
4926 * callback hasn't been called due to high load or due to a flawed
4929 * In practice, we will assume that if after a certain number of txgs a
4930 * commit callback hasn't been called, then most likely there's an
4931 * implementation bug..
4933 tmp_cb
= list_head(&zcl
.zcl_callbacks
);
4934 if (tmp_cb
!= NULL
&&
4935 tmp_cb
->zcd_txg
+ ZTEST_COMMIT_CB_THRESH
< txg
) {
4936 fatal(0, "Commit callback threshold exceeded, oldest txg: %"
4937 PRIu64
", open txg: %" PRIu64
"\n", tmp_cb
->zcd_txg
, txg
);
4941 * Let's find the place to insert our callbacks.
4943 * Even though the list is ordered by txg, it is possible for the
4944 * insertion point to not be the end because our txg may already be
4945 * quiescing at this point and other callbacks in the open txg
4946 * (from other objsets) may have sneaked in.
4948 tmp_cb
= list_tail(&zcl
.zcl_callbacks
);
4949 while (tmp_cb
!= NULL
&& tmp_cb
->zcd_txg
> txg
)
4950 tmp_cb
= list_prev(&zcl
.zcl_callbacks
, tmp_cb
);
4952 /* Add the 3 callbacks to the list */
4953 for (i
= 0; i
< 3; i
++) {
4955 list_insert_head(&zcl
.zcl_callbacks
, cb_data
[i
]);
4957 list_insert_after(&zcl
.zcl_callbacks
, tmp_cb
,
4960 cb_data
[i
]->zcd_added
= B_TRUE
;
4961 VERIFY(!cb_data
[i
]->zcd_called
);
4963 tmp_cb
= cb_data
[i
];
4968 (void) mutex_exit(&zcl
.zcl_callbacks_lock
);
4972 umem_free(od
, sizeof (ztest_od_t
));
4976 * Visit each object in the dataset. Verify that its properties
4977 * are consistent what was stored in the block tag when it was created,
4978 * and that its unused bonus buffer space has not been overwritten.
4981 ztest_verify_dnode_bt(ztest_ds_t
*zd
, uint64_t id
)
4983 objset_t
*os
= zd
->zd_os
;
4987 for (obj
= 0; err
== 0; err
= dmu_object_next(os
, &obj
, FALSE
, 0)) {
4988 ztest_block_tag_t
*bt
= NULL
;
4989 dmu_object_info_t doi
;
4992 if (dmu_bonus_hold(os
, obj
, FTAG
, &db
) != 0)
4995 dmu_object_info_from_db(db
, &doi
);
4996 if (doi
.doi_bonus_size
>= sizeof (*bt
))
4997 bt
= ztest_bt_bonus(db
);
4999 if (bt
&& bt
->bt_magic
== BT_MAGIC
) {
5000 ztest_bt_verify(bt
, os
, obj
, doi
.doi_dnodesize
,
5001 bt
->bt_offset
, bt
->bt_gen
, bt
->bt_txg
,
5003 ztest_verify_unused_bonus(db
, bt
, obj
, os
, bt
->bt_gen
);
5006 dmu_buf_rele(db
, FTAG
);
5012 ztest_dsl_prop_get_set(ztest_ds_t
*zd
, uint64_t id
)
5014 zfs_prop_t proplist
[] = {
5016 ZFS_PROP_COMPRESSION
,
5022 (void) rw_rdlock(&ztest_name_lock
);
5024 for (p
= 0; p
< sizeof (proplist
) / sizeof (proplist
[0]); p
++)
5025 (void) ztest_dsl_prop_set_uint64(zd
->zd_name
, proplist
[p
],
5026 ztest_random_dsl_prop(proplist
[p
]), (int)ztest_random(2));
5028 VERIFY0(ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_RECORDSIZE
,
5029 ztest_random_blocksize(), (int)ztest_random(2)));
5031 (void) rw_unlock(&ztest_name_lock
);
5036 ztest_spa_prop_get_set(ztest_ds_t
*zd
, uint64_t id
)
5038 nvlist_t
*props
= NULL
;
5040 (void) rw_rdlock(&ztest_name_lock
);
5042 (void) ztest_spa_prop_set_uint64(ZPOOL_PROP_DEDUPDITTO
,
5043 ZIO_DEDUPDITTO_MIN
+ ztest_random(ZIO_DEDUPDITTO_MIN
));
5045 VERIFY0(spa_prop_get(ztest_spa
, &props
));
5047 if (ztest_opts
.zo_verbose
>= 6)
5048 dump_nvlist(props
, 4);
5052 (void) rw_unlock(&ztest_name_lock
);
5056 user_release_one(const char *snapname
, const char *holdname
)
5058 nvlist_t
*snaps
, *holds
;
5061 snaps
= fnvlist_alloc();
5062 holds
= fnvlist_alloc();
5063 fnvlist_add_boolean(holds
, holdname
);
5064 fnvlist_add_nvlist(snaps
, snapname
, holds
);
5065 fnvlist_free(holds
);
5066 error
= dsl_dataset_user_release(snaps
, NULL
);
5067 fnvlist_free(snaps
);
5072 * Test snapshot hold/release and deferred destroy.
5075 ztest_dmu_snapshot_hold(ztest_ds_t
*zd
, uint64_t id
)
5078 objset_t
*os
= zd
->zd_os
;
5082 char clonename
[100];
5084 char osname
[ZFS_MAX_DATASET_NAME_LEN
];
5087 (void) rw_rdlock(&ztest_name_lock
);
5089 dmu_objset_name(os
, osname
);
5091 (void) snprintf(snapname
, sizeof (snapname
), "sh1_%llu",
5093 (void) snprintf(fullname
, sizeof (fullname
), "%s@%s", osname
, snapname
);
5094 (void) snprintf(clonename
, sizeof (clonename
),
5095 "%s/ch1_%llu", osname
, (u_longlong_t
)id
);
5096 (void) snprintf(tag
, sizeof (tag
), "tag_%llu", (u_longlong_t
)id
);
5099 * Clean up from any previous run.
5101 error
= dsl_destroy_head(clonename
);
5102 if (error
!= ENOENT
)
5104 error
= user_release_one(fullname
, tag
);
5105 if (error
!= ESRCH
&& error
!= ENOENT
)
5107 error
= dsl_destroy_snapshot(fullname
, B_FALSE
);
5108 if (error
!= ENOENT
)
5112 * Create snapshot, clone it, mark snap for deferred destroy,
5113 * destroy clone, verify snap was also destroyed.
5115 error
= dmu_objset_snapshot_one(osname
, snapname
);
5117 if (error
== ENOSPC
) {
5118 ztest_record_enospc("dmu_objset_snapshot");
5121 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname
, error
);
5124 error
= dmu_objset_clone(clonename
, fullname
);
5126 if (error
== ENOSPC
) {
5127 ztest_record_enospc("dmu_objset_clone");
5130 fatal(0, "dmu_objset_clone(%s) = %d", clonename
, error
);
5133 error
= dsl_destroy_snapshot(fullname
, B_TRUE
);
5135 fatal(0, "dsl_destroy_snapshot(%s, B_TRUE) = %d",
5139 error
= dsl_destroy_head(clonename
);
5141 fatal(0, "dsl_destroy_head(%s) = %d", clonename
, error
);
5143 error
= dmu_objset_hold(fullname
, FTAG
, &origin
);
5144 if (error
!= ENOENT
)
5145 fatal(0, "dmu_objset_hold(%s) = %d", fullname
, error
);
5148 * Create snapshot, add temporary hold, verify that we can't
5149 * destroy a held snapshot, mark for deferred destroy,
5150 * release hold, verify snapshot was destroyed.
5152 error
= dmu_objset_snapshot_one(osname
, snapname
);
5154 if (error
== ENOSPC
) {
5155 ztest_record_enospc("dmu_objset_snapshot");
5158 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname
, error
);
5161 holds
= fnvlist_alloc();
5162 fnvlist_add_string(holds
, fullname
, tag
);
5163 error
= dsl_dataset_user_hold(holds
, 0, NULL
);
5164 fnvlist_free(holds
);
5166 if (error
== ENOSPC
) {
5167 ztest_record_enospc("dsl_dataset_user_hold");
5170 fatal(0, "dsl_dataset_user_hold(%s, %s) = %u",
5171 fullname
, tag
, error
);
5174 error
= dsl_destroy_snapshot(fullname
, B_FALSE
);
5175 if (error
!= EBUSY
) {
5176 fatal(0, "dsl_destroy_snapshot(%s, B_FALSE) = %d",
5180 error
= dsl_destroy_snapshot(fullname
, B_TRUE
);
5182 fatal(0, "dsl_destroy_snapshot(%s, B_TRUE) = %d",
5186 error
= user_release_one(fullname
, tag
);
5188 fatal(0, "user_release_one(%s, %s) = %d", fullname
, tag
, error
);
5190 VERIFY3U(dmu_objset_hold(fullname
, FTAG
, &origin
), ==, ENOENT
);
5193 (void) rw_unlock(&ztest_name_lock
);
5197 * Inject random faults into the on-disk data.
5201 ztest_fault_inject(ztest_ds_t
*zd
, uint64_t id
)
5203 ztest_shared_t
*zs
= ztest_shared
;
5204 spa_t
*spa
= ztest_spa
;
5208 uint64_t bad
= 0x1990c0ffeedecadeull
;
5213 int bshift
= SPA_MAXBLOCKSHIFT
+ 2; /* don't scrog all labels */
5219 boolean_t islog
= B_FALSE
;
5221 path0
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
5222 pathrand
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
5224 mutex_enter(&ztest_vdev_lock
);
5225 maxfaults
= MAXFAULTS();
5226 leaves
= MAX(zs
->zs_mirrors
, 1) * ztest_opts
.zo_raidz
;
5227 mirror_save
= zs
->zs_mirrors
;
5228 mutex_exit(&ztest_vdev_lock
);
5230 ASSERT(leaves
>= 1);
5233 * Grab the name lock as reader. There are some operations
5234 * which don't like to have their vdevs changed while
5235 * they are in progress (i.e. spa_change_guid). Those
5236 * operations will have grabbed the name lock as writer.
5238 (void) rw_rdlock(&ztest_name_lock
);
5241 * We need SCL_STATE here because we're going to look at vd0->vdev_tsd.
5243 spa_config_enter(spa
, SCL_STATE
, FTAG
, RW_READER
);
5245 if (ztest_random(2) == 0) {
5247 * Inject errors on a normal data device or slog device.
5249 top
= ztest_random_vdev_top(spa
, B_TRUE
);
5250 leaf
= ztest_random(leaves
) + zs
->zs_splits
;
5253 * Generate paths to the first leaf in this top-level vdev,
5254 * and to the random leaf we selected. We'll induce transient
5255 * write failures and random online/offline activity on leaf 0,
5256 * and we'll write random garbage to the randomly chosen leaf.
5258 (void) snprintf(path0
, MAXPATHLEN
, ztest_dev_template
,
5259 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
5260 top
* leaves
+ zs
->zs_splits
);
5261 (void) snprintf(pathrand
, MAXPATHLEN
, ztest_dev_template
,
5262 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
5263 top
* leaves
+ leaf
);
5265 vd0
= vdev_lookup_by_path(spa
->spa_root_vdev
, path0
);
5266 if (vd0
!= NULL
&& vd0
->vdev_top
->vdev_islog
)
5270 * If the top-level vdev needs to be resilvered
5271 * then we only allow faults on the device that is
5274 if (vd0
!= NULL
&& maxfaults
!= 1 &&
5275 (!vdev_resilver_needed(vd0
->vdev_top
, NULL
, NULL
) ||
5276 vd0
->vdev_resilver_txg
!= 0)) {
5278 * Make vd0 explicitly claim to be unreadable,
5279 * or unwriteable, or reach behind its back
5280 * and close the underlying fd. We can do this if
5281 * maxfaults == 0 because we'll fail and reexecute,
5282 * and we can do it if maxfaults >= 2 because we'll
5283 * have enough redundancy. If maxfaults == 1, the
5284 * combination of this with injection of random data
5285 * corruption below exceeds the pool's fault tolerance.
5287 vdev_file_t
*vf
= vd0
->vdev_tsd
;
5289 if (vf
!= NULL
&& ztest_random(3) == 0) {
5290 (void) close(vf
->vf_vnode
->v_fd
);
5291 vf
->vf_vnode
->v_fd
= -1;
5292 } else if (ztest_random(2) == 0) {
5293 vd0
->vdev_cant_read
= B_TRUE
;
5295 vd0
->vdev_cant_write
= B_TRUE
;
5297 guid0
= vd0
->vdev_guid
;
5301 * Inject errors on an l2cache device.
5303 spa_aux_vdev_t
*sav
= &spa
->spa_l2cache
;
5305 if (sav
->sav_count
== 0) {
5306 spa_config_exit(spa
, SCL_STATE
, FTAG
);
5307 (void) rw_unlock(&ztest_name_lock
);
5310 vd0
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)];
5311 guid0
= vd0
->vdev_guid
;
5312 (void) strcpy(path0
, vd0
->vdev_path
);
5313 (void) strcpy(pathrand
, vd0
->vdev_path
);
5317 maxfaults
= INT_MAX
; /* no limit on cache devices */
5320 spa_config_exit(spa
, SCL_STATE
, FTAG
);
5321 (void) rw_unlock(&ztest_name_lock
);
5324 * If we can tolerate two or more faults, or we're dealing
5325 * with a slog, randomly online/offline vd0.
5327 if ((maxfaults
>= 2 || islog
) && guid0
!= 0) {
5328 if (ztest_random(10) < 6) {
5329 int flags
= (ztest_random(2) == 0 ?
5330 ZFS_OFFLINE_TEMPORARY
: 0);
5333 * We have to grab the zs_name_lock as writer to
5334 * prevent a race between offlining a slog and
5335 * destroying a dataset. Offlining the slog will
5336 * grab a reference on the dataset which may cause
5337 * dsl_destroy_head() to fail with EBUSY thus
5338 * leaving the dataset in an inconsistent state.
5341 (void) rw_wrlock(&ztest_name_lock
);
5343 VERIFY(vdev_offline(spa
, guid0
, flags
) != EBUSY
);
5346 (void) rw_unlock(&ztest_name_lock
);
5349 * Ideally we would like to be able to randomly
5350 * call vdev_[on|off]line without holding locks
5351 * to force unpredictable failures but the side
5352 * effects of vdev_[on|off]line prevent us from
5353 * doing so. We grab the ztest_vdev_lock here to
5354 * prevent a race between injection testing and
5357 mutex_enter(&ztest_vdev_lock
);
5358 (void) vdev_online(spa
, guid0
, 0, NULL
);
5359 mutex_exit(&ztest_vdev_lock
);
5367 * We have at least single-fault tolerance, so inject data corruption.
5369 fd
= open(pathrand
, O_RDWR
);
5371 if (fd
== -1) /* we hit a gap in the device namespace */
5374 fsize
= lseek(fd
, 0, SEEK_END
);
5376 while (--iters
!= 0) {
5378 * The offset must be chosen carefully to ensure that
5379 * we do not inject a given logical block with errors
5380 * on two different leaf devices, because ZFS can not
5381 * tolerate that (if maxfaults==1).
5383 * We divide each leaf into chunks of size
5384 * (# leaves * SPA_MAXBLOCKSIZE * 4). Within each chunk
5385 * there is a series of ranges to which we can inject errors.
5386 * Each range can accept errors on only a single leaf vdev.
5387 * The error injection ranges are separated by ranges
5388 * which we will not inject errors on any device (DMZs).
5389 * Each DMZ must be large enough such that a single block
5390 * can not straddle it, so that a single block can not be
5391 * a target in two different injection ranges (on different
5394 * For example, with 3 leaves, each chunk looks like:
5395 * 0 to 32M: injection range for leaf 0
5396 * 32M to 64M: DMZ - no injection allowed
5397 * 64M to 96M: injection range for leaf 1
5398 * 96M to 128M: DMZ - no injection allowed
5399 * 128M to 160M: injection range for leaf 2
5400 * 160M to 192M: DMZ - no injection allowed
5402 offset
= ztest_random(fsize
/ (leaves
<< bshift
)) *
5403 (leaves
<< bshift
) + (leaf
<< bshift
) +
5404 (ztest_random(1ULL << (bshift
- 1)) & -8ULL);
5406 if (offset
>= fsize
)
5409 mutex_enter(&ztest_vdev_lock
);
5410 if (mirror_save
!= zs
->zs_mirrors
) {
5411 mutex_exit(&ztest_vdev_lock
);
5416 if (pwrite(fd
, &bad
, sizeof (bad
), offset
) != sizeof (bad
))
5417 fatal(1, "can't inject bad word at 0x%llx in %s",
5420 mutex_exit(&ztest_vdev_lock
);
5422 if (ztest_opts
.zo_verbose
>= 7)
5423 (void) printf("injected bad word into %s,"
5424 " offset 0x%llx\n", pathrand
, (u_longlong_t
)offset
);
5429 umem_free(path0
, MAXPATHLEN
);
5430 umem_free(pathrand
, MAXPATHLEN
);
5434 * Verify that DDT repair works as expected.
5437 ztest_ddt_repair(ztest_ds_t
*zd
, uint64_t id
)
5439 ztest_shared_t
*zs
= ztest_shared
;
5440 spa_t
*spa
= ztest_spa
;
5441 objset_t
*os
= zd
->zd_os
;
5443 uint64_t object
, blocksize
, txg
, pattern
, psize
;
5444 enum zio_checksum checksum
= spa_dedup_checksum(spa
);
5449 int copies
= 2 * ZIO_DEDUPDITTO_MIN
;
5452 blocksize
= ztest_random_blocksize();
5453 blocksize
= MIN(blocksize
, 2048); /* because we write so many */
5455 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
5456 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0, 0);
5458 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
5459 umem_free(od
, sizeof (ztest_od_t
));
5464 * Take the name lock as writer to prevent anyone else from changing
5465 * the pool and dataset properies we need to maintain during this test.
5467 (void) rw_wrlock(&ztest_name_lock
);
5469 if (ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_DEDUP
, checksum
,
5471 ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_COPIES
, 1,
5473 (void) rw_unlock(&ztest_name_lock
);
5474 umem_free(od
, sizeof (ztest_od_t
));
5478 object
= od
[0].od_object
;
5479 blocksize
= od
[0].od_blocksize
;
5480 pattern
= zs
->zs_guid
^ dmu_objset_fsid_guid(os
);
5482 ASSERT(object
!= 0);
5484 tx
= dmu_tx_create(os
);
5485 dmu_tx_hold_write(tx
, object
, 0, copies
* blocksize
);
5486 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
5488 (void) rw_unlock(&ztest_name_lock
);
5489 umem_free(od
, sizeof (ztest_od_t
));
5494 * Write all the copies of our block.
5496 for (i
= 0; i
< copies
; i
++) {
5497 uint64_t offset
= i
* blocksize
;
5498 int error
= dmu_buf_hold(os
, object
, offset
, FTAG
, &db
,
5499 DMU_READ_NO_PREFETCH
);
5501 fatal(B_FALSE
, "dmu_buf_hold(%p, %llu, %llu) = %u",
5502 os
, (long long)object
, (long long) offset
, error
);
5504 ASSERT(db
->db_offset
== offset
);
5505 ASSERT(db
->db_size
== blocksize
);
5506 ASSERT(ztest_pattern_match(db
->db_data
, db
->db_size
, pattern
) ||
5507 ztest_pattern_match(db
->db_data
, db
->db_size
, 0ULL));
5508 dmu_buf_will_fill(db
, tx
);
5509 ztest_pattern_set(db
->db_data
, db
->db_size
, pattern
);
5510 dmu_buf_rele(db
, FTAG
);
5514 txg_wait_synced(spa_get_dsl(spa
), txg
);
5517 * Find out what block we got.
5519 VERIFY0(dmu_buf_hold(os
, object
, 0, FTAG
, &db
,
5520 DMU_READ_NO_PREFETCH
));
5521 blk
= *((dmu_buf_impl_t
*)db
)->db_blkptr
;
5522 dmu_buf_rele(db
, FTAG
);
5525 * Damage the block. Dedup-ditto will save us when we read it later.
5527 psize
= BP_GET_PSIZE(&blk
);
5528 buf
= zio_buf_alloc(psize
);
5529 ztest_pattern_set(buf
, psize
, ~pattern
);
5531 (void) zio_wait(zio_rewrite(NULL
, spa
, 0, &blk
,
5532 buf
, psize
, NULL
, NULL
, ZIO_PRIORITY_SYNC_WRITE
,
5533 ZIO_FLAG_CANFAIL
| ZIO_FLAG_INDUCE_DAMAGE
, NULL
));
5535 zio_buf_free(buf
, psize
);
5537 (void) rw_unlock(&ztest_name_lock
);
5538 umem_free(od
, sizeof (ztest_od_t
));
5546 ztest_scrub(ztest_ds_t
*zd
, uint64_t id
)
5548 spa_t
*spa
= ztest_spa
;
5550 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5551 (void) poll(NULL
, 0, 100); /* wait a moment, then force a restart */
5552 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5556 * Change the guid for the pool.
5560 ztest_reguid(ztest_ds_t
*zd
, uint64_t id
)
5562 spa_t
*spa
= ztest_spa
;
5563 uint64_t orig
, load
;
5566 orig
= spa_guid(spa
);
5567 load
= spa_load_guid(spa
);
5569 (void) rw_wrlock(&ztest_name_lock
);
5570 error
= spa_change_guid(spa
);
5571 (void) rw_unlock(&ztest_name_lock
);
5576 if (ztest_opts
.zo_verbose
>= 4) {
5577 (void) printf("Changed guid old %llu -> %llu\n",
5578 (u_longlong_t
)orig
, (u_longlong_t
)spa_guid(spa
));
5581 VERIFY3U(orig
, !=, spa_guid(spa
));
5582 VERIFY3U(load
, ==, spa_load_guid(spa
));
5586 * Rename the pool to a different name and then rename it back.
5590 ztest_spa_rename(ztest_ds_t
*zd
, uint64_t id
)
5592 char *oldname
, *newname
;
5595 (void) rw_wrlock(&ztest_name_lock
);
5597 oldname
= ztest_opts
.zo_pool
;
5598 newname
= umem_alloc(strlen(oldname
) + 5, UMEM_NOFAIL
);
5599 (void) strcpy(newname
, oldname
);
5600 (void) strcat(newname
, "_tmp");
5605 VERIFY3U(0, ==, spa_rename(oldname
, newname
));
5608 * Try to open it under the old name, which shouldn't exist
5610 VERIFY3U(ENOENT
, ==, spa_open(oldname
, &spa
, FTAG
));
5613 * Open it under the new name and make sure it's still the same spa_t.
5615 VERIFY3U(0, ==, spa_open(newname
, &spa
, FTAG
));
5617 ASSERT(spa
== ztest_spa
);
5618 spa_close(spa
, FTAG
);
5621 * Rename it back to the original
5623 VERIFY3U(0, ==, spa_rename(newname
, oldname
));
5626 * Make sure it can still be opened
5628 VERIFY3U(0, ==, spa_open(oldname
, &spa
, FTAG
));
5630 ASSERT(spa
== ztest_spa
);
5631 spa_close(spa
, FTAG
);
5633 umem_free(newname
, strlen(newname
) + 1);
5635 (void) rw_unlock(&ztest_name_lock
);
5639 ztest_fletcher(ztest_ds_t
*zd
, uint64_t id
)
5641 hrtime_t end
= gethrtime() + NANOSEC
;
5643 while (gethrtime() <= end
) {
5644 int run_count
= 100;
5650 zio_cksum_t zc_ref_byteswap
;
5652 size
= ztest_random_blocksize();
5653 buf
= umem_alloc(size
, UMEM_NOFAIL
);
5655 for (i
= 0, ptr
= buf
; i
< size
/ sizeof (*ptr
); i
++, ptr
++)
5656 *ptr
= ztest_random(UINT_MAX
);
5658 VERIFY0(fletcher_4_impl_set("scalar"));
5659 fletcher_4_native(buf
, size
, NULL
, &zc_ref
);
5660 fletcher_4_byteswap(buf
, size
, NULL
, &zc_ref_byteswap
);
5662 VERIFY0(fletcher_4_impl_set("cycle"));
5663 while (run_count
-- > 0) {
5665 zio_cksum_t zc_byteswap
;
5667 fletcher_4_byteswap(buf
, size
, NULL
, &zc_byteswap
);
5668 fletcher_4_native(buf
, size
, NULL
, &zc
);
5670 VERIFY0(bcmp(&zc
, &zc_ref
, sizeof (zc
)));
5671 VERIFY0(bcmp(&zc_byteswap
, &zc_ref_byteswap
,
5672 sizeof (zc_byteswap
)));
5675 umem_free(buf
, size
);
5680 ztest_fletcher_incr(ztest_ds_t
*zd
, uint64_t id
)
5687 zio_cksum_t zc_ref_bswap
;
5689 hrtime_t end
= gethrtime() + NANOSEC
;
5691 while (gethrtime() <= end
) {
5692 int run_count
= 100;
5694 size
= ztest_random_blocksize();
5695 buf
= umem_alloc(size
, UMEM_NOFAIL
);
5697 for (i
= 0, ptr
= buf
; i
< size
/ sizeof (*ptr
); i
++, ptr
++)
5698 *ptr
= ztest_random(UINT_MAX
);
5700 VERIFY0(fletcher_4_impl_set("scalar"));
5701 fletcher_4_native(buf
, size
, NULL
, &zc_ref
);
5702 fletcher_4_byteswap(buf
, size
, NULL
, &zc_ref_bswap
);
5704 VERIFY0(fletcher_4_impl_set("cycle"));
5706 while (run_count
-- > 0) {
5708 zio_cksum_t zc_bswap
;
5711 ZIO_SET_CHECKSUM(&zc
, 0, 0, 0, 0);
5712 ZIO_SET_CHECKSUM(&zc_bswap
, 0, 0, 0, 0);
5714 while (pos
< size
) {
5715 size_t inc
= 64 * ztest_random(size
/ 67);
5716 /* sometimes add few bytes to test non-simd */
5717 if (ztest_random(100) < 10)
5718 inc
+= P2ALIGN(ztest_random(64),
5721 if (inc
> (size
- pos
))
5724 fletcher_4_incremental_native(buf
+ pos
, inc
,
5726 fletcher_4_incremental_byteswap(buf
+ pos
, inc
,
5732 VERIFY3U(pos
, ==, size
);
5734 VERIFY(ZIO_CHECKSUM_EQUAL(zc
, zc_ref
));
5735 VERIFY(ZIO_CHECKSUM_EQUAL(zc_bswap
, zc_ref_bswap
));
5738 * verify if incremental on the whole buffer is
5739 * equivalent to non-incremental version
5741 ZIO_SET_CHECKSUM(&zc
, 0, 0, 0, 0);
5742 ZIO_SET_CHECKSUM(&zc_bswap
, 0, 0, 0, 0);
5744 fletcher_4_incremental_native(buf
, size
, &zc
);
5745 fletcher_4_incremental_byteswap(buf
, size
, &zc_bswap
);
5747 VERIFY(ZIO_CHECKSUM_EQUAL(zc
, zc_ref
));
5748 VERIFY(ZIO_CHECKSUM_EQUAL(zc_bswap
, zc_ref_bswap
));
5751 umem_free(buf
, size
);
5756 ztest_check_path(char *path
)
5759 /* return true on success */
5760 return (!stat(path
, &s
));
5764 ztest_get_zdb_bin(char *bin
, int len
)
5768 * Try to use ZDB_PATH and in-tree zdb path. If not successful, just
5769 * let popen to search through PATH.
5771 if ((zdb_path
= getenv("ZDB_PATH"))) {
5772 strlcpy(bin
, zdb_path
, len
); /* In env */
5773 if (!ztest_check_path(bin
)) {
5774 ztest_dump_core
= 0;
5775 fatal(1, "invalid ZDB_PATH '%s'", bin
);
5780 VERIFY(realpath(getexecname(), bin
) != NULL
);
5781 if (strstr(bin
, "/ztest/")) {
5782 strstr(bin
, "/ztest/")[0] = '\0'; /* In-tree */
5783 strcat(bin
, "/zdb/zdb");
5784 if (ztest_check_path(bin
))
5791 * Verify pool integrity by running zdb.
5794 ztest_run_zdb(char *pool
)
5800 const int len
= MAXPATHLEN
+ MAXNAMELEN
+ 20;
5803 bin
= umem_alloc(len
, UMEM_NOFAIL
);
5804 zdb
= umem_alloc(len
, UMEM_NOFAIL
);
5805 zbuf
= umem_alloc(1024, UMEM_NOFAIL
);
5807 ztest_get_zdb_bin(bin
, len
);
5810 "%s -bcc%s%s -d -U %s %s",
5812 ztest_opts
.zo_verbose
>= 3 ? "s" : "",
5813 ztest_opts
.zo_verbose
>= 4 ? "v" : "",
5817 if (ztest_opts
.zo_verbose
>= 5)
5818 (void) printf("Executing %s\n", strstr(zdb
, "zdb "));
5820 fp
= popen(zdb
, "r");
5822 while (fgets(zbuf
, 1024, fp
) != NULL
)
5823 if (ztest_opts
.zo_verbose
>= 3)
5824 (void) printf("%s", zbuf
);
5826 status
= pclose(fp
);
5831 ztest_dump_core
= 0;
5832 if (WIFEXITED(status
))
5833 fatal(0, "'%s' exit code %d", zdb
, WEXITSTATUS(status
));
5835 fatal(0, "'%s' died with signal %d", zdb
, WTERMSIG(status
));
5837 umem_free(bin
, len
);
5838 umem_free(zdb
, len
);
5839 umem_free(zbuf
, 1024);
5843 ztest_walk_pool_directory(char *header
)
5847 if (ztest_opts
.zo_verbose
>= 6)
5848 (void) printf("%s\n", header
);
5850 mutex_enter(&spa_namespace_lock
);
5851 while ((spa
= spa_next(spa
)) != NULL
)
5852 if (ztest_opts
.zo_verbose
>= 6)
5853 (void) printf("\t%s\n", spa_name(spa
));
5854 mutex_exit(&spa_namespace_lock
);
5858 ztest_spa_import_export(char *oldname
, char *newname
)
5860 nvlist_t
*config
, *newconfig
;
5865 if (ztest_opts
.zo_verbose
>= 4) {
5866 (void) printf("import/export: old = %s, new = %s\n",
5871 * Clean up from previous runs.
5873 (void) spa_destroy(newname
);
5876 * Get the pool's configuration and guid.
5878 VERIFY3U(0, ==, spa_open(oldname
, &spa
, FTAG
));
5881 * Kick off a scrub to tickle scrub/export races.
5883 if (ztest_random(2) == 0)
5884 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5886 pool_guid
= spa_guid(spa
);
5887 spa_close(spa
, FTAG
);
5889 ztest_walk_pool_directory("pools before export");
5894 VERIFY3U(0, ==, spa_export(oldname
, &config
, B_FALSE
, B_FALSE
));
5896 ztest_walk_pool_directory("pools after export");
5901 newconfig
= spa_tryimport(config
);
5902 ASSERT(newconfig
!= NULL
);
5903 nvlist_free(newconfig
);
5906 * Import it under the new name.
5908 error
= spa_import(newname
, config
, NULL
, 0);
5910 dump_nvlist(config
, 0);
5911 fatal(B_FALSE
, "couldn't import pool %s as %s: error %u",
5912 oldname
, newname
, error
);
5915 ztest_walk_pool_directory("pools after import");
5918 * Try to import it again -- should fail with EEXIST.
5920 VERIFY3U(EEXIST
, ==, spa_import(newname
, config
, NULL
, 0));
5923 * Try to import it under a different name -- should fail with EEXIST.
5925 VERIFY3U(EEXIST
, ==, spa_import(oldname
, config
, NULL
, 0));
5928 * Verify that the pool is no longer visible under the old name.
5930 VERIFY3U(ENOENT
, ==, spa_open(oldname
, &spa
, FTAG
));
5933 * Verify that we can open and close the pool using the new name.
5935 VERIFY3U(0, ==, spa_open(newname
, &spa
, FTAG
));
5936 ASSERT(pool_guid
== spa_guid(spa
));
5937 spa_close(spa
, FTAG
);
5939 nvlist_free(config
);
5943 ztest_resume(spa_t
*spa
)
5945 if (spa_suspended(spa
) && ztest_opts
.zo_verbose
>= 6)
5946 (void) printf("resuming from suspended state\n");
5947 spa_vdev_state_enter(spa
, SCL_NONE
);
5948 vdev_clear(spa
, NULL
);
5949 (void) spa_vdev_state_exit(spa
, NULL
, 0);
5950 (void) zio_resume(spa
);
5954 ztest_resume_thread(void *arg
)
5958 while (!ztest_exiting
) {
5959 if (spa_suspended(spa
))
5961 (void) poll(NULL
, 0, 100);
5964 * Periodically change the zfs_compressed_arc_enabled setting.
5966 if (ztest_random(10) == 0)
5967 zfs_compressed_arc_enabled
= ztest_random(2);
5979 ztest_deadman_alarm(int sig
)
5981 fatal(0, "failed to complete within %d seconds of deadline", GRACE
);
5986 ztest_execute(int test
, ztest_info_t
*zi
, uint64_t id
)
5988 ztest_ds_t
*zd
= &ztest_ds
[id
% ztest_opts
.zo_datasets
];
5989 ztest_shared_callstate_t
*zc
= ZTEST_GET_SHARED_CALLSTATE(test
);
5990 hrtime_t functime
= gethrtime();
5993 for (i
= 0; i
< zi
->zi_iters
; i
++)
5994 zi
->zi_func(zd
, id
);
5996 functime
= gethrtime() - functime
;
5998 atomic_add_64(&zc
->zc_count
, 1);
5999 atomic_add_64(&zc
->zc_time
, functime
);
6001 if (ztest_opts
.zo_verbose
>= 4)
6002 (void) printf("%6.2f sec in %s\n",
6003 (double)functime
/ NANOSEC
, zi
->zi_funcname
);
6007 ztest_thread(void *arg
)
6010 uint64_t id
= (uintptr_t)arg
;
6011 ztest_shared_t
*zs
= ztest_shared
;
6015 ztest_shared_callstate_t
*zc
;
6017 while ((now
= gethrtime()) < zs
->zs_thread_stop
) {
6019 * See if it's time to force a crash.
6021 if (now
> zs
->zs_thread_kill
)
6025 * If we're getting ENOSPC with some regularity, stop.
6027 if (zs
->zs_enospc_count
> 10)
6031 * Pick a random function to execute.
6033 rand
= ztest_random(ZTEST_FUNCS
);
6034 zi
= &ztest_info
[rand
];
6035 zc
= ZTEST_GET_SHARED_CALLSTATE(rand
);
6036 call_next
= zc
->zc_next
;
6038 if (now
>= call_next
&&
6039 atomic_cas_64(&zc
->zc_next
, call_next
, call_next
+
6040 ztest_random(2 * zi
->zi_interval
[0] + 1)) == call_next
) {
6041 ztest_execute(rand
, zi
, id
);
6051 ztest_dataset_name(char *dsname
, char *pool
, int d
)
6053 (void) snprintf(dsname
, ZFS_MAX_DATASET_NAME_LEN
, "%s/ds_%d", pool
, d
);
6057 ztest_dataset_destroy(int d
)
6059 char name
[ZFS_MAX_DATASET_NAME_LEN
];
6062 ztest_dataset_name(name
, ztest_opts
.zo_pool
, d
);
6064 if (ztest_opts
.zo_verbose
>= 3)
6065 (void) printf("Destroying %s to free up space\n", name
);
6068 * Cleanup any non-standard clones and snapshots. In general,
6069 * ztest thread t operates on dataset (t % zopt_datasets),
6070 * so there may be more than one thing to clean up.
6072 for (t
= d
; t
< ztest_opts
.zo_threads
;
6073 t
+= ztest_opts
.zo_datasets
)
6074 ztest_dsl_dataset_cleanup(name
, t
);
6076 (void) dmu_objset_find(name
, ztest_objset_destroy_cb
, NULL
,
6077 DS_FIND_SNAPSHOTS
| DS_FIND_CHILDREN
);
6081 ztest_dataset_dirobj_verify(ztest_ds_t
*zd
)
6083 uint64_t usedobjs
, dirobjs
, scratch
;
6086 * ZTEST_DIROBJ is the object directory for the entire dataset.
6087 * Therefore, the number of objects in use should equal the
6088 * number of ZTEST_DIROBJ entries, +1 for ZTEST_DIROBJ itself.
6089 * If not, we have an object leak.
6091 * Note that we can only check this in ztest_dataset_open(),
6092 * when the open-context and syncing-context values agree.
6093 * That's because zap_count() returns the open-context value,
6094 * while dmu_objset_space() returns the rootbp fill count.
6096 VERIFY3U(0, ==, zap_count(zd
->zd_os
, ZTEST_DIROBJ
, &dirobjs
));
6097 dmu_objset_space(zd
->zd_os
, &scratch
, &scratch
, &usedobjs
, &scratch
);
6098 ASSERT3U(dirobjs
+ 1, ==, usedobjs
);
6102 ztest_dataset_open(int d
)
6104 ztest_ds_t
*zd
= &ztest_ds
[d
];
6105 uint64_t committed_seq
= ZTEST_GET_SHARED_DS(d
)->zd_seq
;
6108 char name
[ZFS_MAX_DATASET_NAME_LEN
];
6111 ztest_dataset_name(name
, ztest_opts
.zo_pool
, d
);
6113 (void) rw_rdlock(&ztest_name_lock
);
6115 error
= ztest_dataset_create(name
);
6116 if (error
== ENOSPC
) {
6117 (void) rw_unlock(&ztest_name_lock
);
6118 ztest_record_enospc(FTAG
);
6121 ASSERT(error
== 0 || error
== EEXIST
);
6123 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, zd
, &os
));
6124 (void) rw_unlock(&ztest_name_lock
);
6126 ztest_zd_init(zd
, ZTEST_GET_SHARED_DS(d
), os
);
6128 zilog
= zd
->zd_zilog
;
6130 if (zilog
->zl_header
->zh_claim_lr_seq
!= 0 &&
6131 zilog
->zl_header
->zh_claim_lr_seq
< committed_seq
)
6132 fatal(0, "missing log records: claimed %llu < committed %llu",
6133 zilog
->zl_header
->zh_claim_lr_seq
, committed_seq
);
6135 ztest_dataset_dirobj_verify(zd
);
6137 zil_replay(os
, zd
, ztest_replay_vector
);
6139 ztest_dataset_dirobj_verify(zd
);
6141 if (ztest_opts
.zo_verbose
>= 6)
6142 (void) printf("%s replay %llu blocks, %llu records, seq %llu\n",
6144 (u_longlong_t
)zilog
->zl_parse_blk_count
,
6145 (u_longlong_t
)zilog
->zl_parse_lr_count
,
6146 (u_longlong_t
)zilog
->zl_replaying_seq
);
6148 zilog
= zil_open(os
, ztest_get_data
);
6150 if (zilog
->zl_replaying_seq
!= 0 &&
6151 zilog
->zl_replaying_seq
< committed_seq
)
6152 fatal(0, "missing log records: replayed %llu < committed %llu",
6153 zilog
->zl_replaying_seq
, committed_seq
);
6159 ztest_dataset_close(int d
)
6161 ztest_ds_t
*zd
= &ztest_ds
[d
];
6163 zil_close(zd
->zd_zilog
);
6164 dmu_objset_disown(zd
->zd_os
, zd
);
6170 * Kick off threads to run tests on all datasets in parallel.
6173 ztest_run(ztest_shared_t
*zs
)
6178 kthread_t
*resume_thread
;
6183 ztest_exiting
= B_FALSE
;
6186 * Initialize parent/child shared state.
6188 mutex_init(&ztest_vdev_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
6189 VERIFY(rwlock_init(&ztest_name_lock
, USYNC_THREAD
, NULL
) == 0);
6191 zs
->zs_thread_start
= gethrtime();
6192 zs
->zs_thread_stop
=
6193 zs
->zs_thread_start
+ ztest_opts
.zo_passtime
* NANOSEC
;
6194 zs
->zs_thread_stop
= MIN(zs
->zs_thread_stop
, zs
->zs_proc_stop
);
6195 zs
->zs_thread_kill
= zs
->zs_thread_stop
;
6196 if (ztest_random(100) < ztest_opts
.zo_killrate
) {
6197 zs
->zs_thread_kill
-=
6198 ztest_random(ztest_opts
.zo_passtime
* NANOSEC
);
6201 mutex_init(&zcl
.zcl_callbacks_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
6203 list_create(&zcl
.zcl_callbacks
, sizeof (ztest_cb_data_t
),
6204 offsetof(ztest_cb_data_t
, zcd_node
));
6209 kernel_init(FREAD
| FWRITE
);
6210 VERIFY0(spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
6211 spa
->spa_debug
= B_TRUE
;
6212 metaslab_preload_limit
= ztest_random(20) + 1;
6215 VERIFY0(dmu_objset_own(ztest_opts
.zo_pool
,
6216 DMU_OST_ANY
, B_TRUE
, FTAG
, &os
));
6217 zs
->zs_guid
= dmu_objset_fsid_guid(os
);
6218 dmu_objset_disown(os
, FTAG
);
6220 spa
->spa_dedup_ditto
= 2 * ZIO_DEDUPDITTO_MIN
;
6223 * We don't expect the pool to suspend unless maxfaults == 0,
6224 * in which case ztest_fault_inject() temporarily takes away
6225 * the only valid replica.
6227 if (MAXFAULTS() == 0)
6228 spa
->spa_failmode
= ZIO_FAILURE_MODE_WAIT
;
6230 spa
->spa_failmode
= ZIO_FAILURE_MODE_PANIC
;
6233 * Create a thread to periodically resume suspended I/O.
6235 VERIFY3P((resume_thread
= zk_thread_create(NULL
, 0,
6236 (thread_func_t
)ztest_resume_thread
, spa
, TS_RUN
, NULL
, 0, 0,
6237 PTHREAD_CREATE_JOINABLE
)), !=, NULL
);
6241 * Set a deadman alarm to abort() if we hang.
6243 signal(SIGALRM
, ztest_deadman_alarm
);
6244 alarm((zs
->zs_thread_stop
- zs
->zs_thread_start
) / NANOSEC
+ GRACE
);
6248 * Verify that we can safely inquire about about any object,
6249 * whether it's allocated or not. To make it interesting,
6250 * we probe a 5-wide window around each power of two.
6251 * This hits all edge cases, including zero and the max.
6253 for (t
= 0; t
< 64; t
++) {
6254 for (d
= -5; d
<= 5; d
++) {
6255 error
= dmu_object_info(spa
->spa_meta_objset
,
6256 (1ULL << t
) + d
, NULL
);
6257 ASSERT(error
== 0 || error
== ENOENT
||
6263 * If we got any ENOSPC errors on the previous run, destroy something.
6265 if (zs
->zs_enospc_count
!= 0) {
6266 int d
= ztest_random(ztest_opts
.zo_datasets
);
6267 ztest_dataset_destroy(d
);
6269 zs
->zs_enospc_count
= 0;
6271 tid
= umem_zalloc(ztest_opts
.zo_threads
* sizeof (kt_did_t
),
6274 if (ztest_opts
.zo_verbose
>= 4)
6275 (void) printf("starting main threads...\n");
6278 * Kick off all the tests that run in parallel.
6280 for (t
= 0; t
< ztest_opts
.zo_threads
; t
++) {
6283 if (t
< ztest_opts
.zo_datasets
&&
6284 ztest_dataset_open(t
) != 0)
6287 VERIFY3P(thread
= zk_thread_create(NULL
, 0,
6288 (thread_func_t
)ztest_thread
,
6289 (void *)(uintptr_t)t
, TS_RUN
, NULL
, 0, 0,
6290 PTHREAD_CREATE_JOINABLE
), !=, NULL
);
6291 tid
[t
] = thread
->t_tid
;
6295 * Wait for all of the tests to complete. We go in reverse order
6296 * so we don't close datasets while threads are still using them.
6298 for (t
= ztest_opts
.zo_threads
- 1; t
>= 0; t
--) {
6299 thread_join(tid
[t
]);
6300 if (t
< ztest_opts
.zo_datasets
)
6301 ztest_dataset_close(t
);
6304 txg_wait_synced(spa_get_dsl(spa
), 0);
6306 zs
->zs_alloc
= metaslab_class_get_alloc(spa_normal_class(spa
));
6307 zs
->zs_space
= metaslab_class_get_space(spa_normal_class(spa
));
6309 umem_free(tid
, ztest_opts
.zo_threads
* sizeof (kt_did_t
));
6311 /* Kill the resume thread */
6312 ztest_exiting
= B_TRUE
;
6313 thread_join(resume_thread
->t_tid
);
6317 * Right before closing the pool, kick off a bunch of async I/O;
6318 * spa_close() should wait for it to complete.
6320 for (object
= 1; object
< 50; object
++) {
6321 dmu_prefetch(spa
->spa_meta_objset
, object
, 0, 0, 1ULL << 20,
6322 ZIO_PRIORITY_SYNC_READ
);
6325 /* Verify that at least one commit cb was called in a timely fashion */
6326 if (zc_cb_counter
>= ZTEST_COMMIT_CB_MIN_REG
)
6327 VERIFY0(zc_min_txg_delay
);
6329 spa_close(spa
, FTAG
);
6332 * Verify that we can loop over all pools.
6334 mutex_enter(&spa_namespace_lock
);
6335 for (spa
= spa_next(NULL
); spa
!= NULL
; spa
= spa_next(spa
))
6336 if (ztest_opts
.zo_verbose
> 3)
6337 (void) printf("spa_next: found %s\n", spa_name(spa
));
6338 mutex_exit(&spa_namespace_lock
);
6341 * Verify that we can export the pool and reimport it under a
6344 if (ztest_random(2) == 0) {
6345 char name
[ZFS_MAX_DATASET_NAME_LEN
];
6346 (void) snprintf(name
, sizeof (name
), "%s_import",
6347 ztest_opts
.zo_pool
);
6348 ztest_spa_import_export(ztest_opts
.zo_pool
, name
);
6349 ztest_spa_import_export(name
, ztest_opts
.zo_pool
);
6354 list_destroy(&zcl
.zcl_callbacks
);
6355 mutex_destroy(&zcl
.zcl_callbacks_lock
);
6356 (void) rwlock_destroy(&ztest_name_lock
);
6357 mutex_destroy(&ztest_vdev_lock
);
6363 ztest_ds_t
*zd
= &ztest_ds
[0];
6367 if (ztest_opts
.zo_verbose
>= 3)
6368 (void) printf("testing spa_freeze()...\n");
6370 kernel_init(FREAD
| FWRITE
);
6371 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
6372 VERIFY3U(0, ==, ztest_dataset_open(0));
6373 spa
->spa_debug
= B_TRUE
;
6377 * Force the first log block to be transactionally allocated.
6378 * We have to do this before we freeze the pool -- otherwise
6379 * the log chain won't be anchored.
6381 while (BP_IS_HOLE(&zd
->zd_zilog
->zl_header
->zh_log
)) {
6382 ztest_dmu_object_alloc_free(zd
, 0);
6383 zil_commit(zd
->zd_zilog
, 0);
6386 txg_wait_synced(spa_get_dsl(spa
), 0);
6389 * Freeze the pool. This stops spa_sync() from doing anything,
6390 * so that the only way to record changes from now on is the ZIL.
6395 * Because it is hard to predict how much space a write will actually
6396 * require beforehand, we leave ourselves some fudge space to write over
6399 uint64_t capacity
= metaslab_class_get_space(spa_normal_class(spa
)) / 2;
6402 * Run tests that generate log records but don't alter the pool config
6403 * or depend on DSL sync tasks (snapshots, objset create/destroy, etc).
6404 * We do a txg_wait_synced() after each iteration to force the txg
6405 * to increase well beyond the last synced value in the uberblock.
6406 * The ZIL should be OK with that.
6408 * Run a random number of times less than zo_maxloops and ensure we do
6409 * not run out of space on the pool.
6411 while (ztest_random(10) != 0 &&
6412 numloops
++ < ztest_opts
.zo_maxloops
&&
6413 metaslab_class_get_alloc(spa_normal_class(spa
)) < capacity
) {
6415 ztest_od_init(&od
, 0, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0, 0);
6416 VERIFY0(ztest_object_init(zd
, &od
, sizeof (od
), B_FALSE
));
6417 ztest_io(zd
, od
.od_object
,
6418 ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
6419 txg_wait_synced(spa_get_dsl(spa
), 0);
6423 * Commit all of the changes we just generated.
6425 zil_commit(zd
->zd_zilog
, 0);
6426 txg_wait_synced(spa_get_dsl(spa
), 0);
6429 * Close our dataset and close the pool.
6431 ztest_dataset_close(0);
6432 spa_close(spa
, FTAG
);
6436 * Open and close the pool and dataset to induce log replay.
6438 kernel_init(FREAD
| FWRITE
);
6439 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
6440 ASSERT(spa_freeze_txg(spa
) == UINT64_MAX
);
6441 VERIFY3U(0, ==, ztest_dataset_open(0));
6442 ztest_dataset_close(0);
6444 spa
->spa_debug
= B_TRUE
;
6446 txg_wait_synced(spa_get_dsl(spa
), 0);
6447 ztest_reguid(NULL
, 0);
6449 spa_close(spa
, FTAG
);
6454 print_time(hrtime_t t
, char *timebuf
)
6456 hrtime_t s
= t
/ NANOSEC
;
6457 hrtime_t m
= s
/ 60;
6458 hrtime_t h
= m
/ 60;
6459 hrtime_t d
= h
/ 24;
6468 (void) sprintf(timebuf
,
6469 "%llud%02lluh%02llum%02llus", d
, h
, m
, s
);
6471 (void) sprintf(timebuf
, "%lluh%02llum%02llus", h
, m
, s
);
6473 (void) sprintf(timebuf
, "%llum%02llus", m
, s
);
6475 (void) sprintf(timebuf
, "%llus", s
);
6479 make_random_props(void)
6483 VERIFY(nvlist_alloc(&props
, NV_UNIQUE_NAME
, 0) == 0);
6484 if (ztest_random(2) == 0)
6486 VERIFY(nvlist_add_uint64(props
, "autoreplace", 1) == 0);
6492 * Create a storage pool with the given name and initial vdev size.
6493 * Then test spa_freeze() functionality.
6496 ztest_init(ztest_shared_t
*zs
)
6499 nvlist_t
*nvroot
, *props
;
6502 mutex_init(&ztest_vdev_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
6503 VERIFY(rwlock_init(&ztest_name_lock
, USYNC_THREAD
, NULL
) == 0);
6505 kernel_init(FREAD
| FWRITE
);
6508 * Create the storage pool.
6510 (void) spa_destroy(ztest_opts
.zo_pool
);
6511 ztest_shared
->zs_vdev_next_leaf
= 0;
6513 zs
->zs_mirrors
= ztest_opts
.zo_mirrors
;
6514 nvroot
= make_vdev_root(NULL
, NULL
, NULL
, ztest_opts
.zo_vdev_size
, 0,
6515 0, ztest_opts
.zo_raidz
, zs
->zs_mirrors
, 1);
6516 props
= make_random_props();
6517 for (i
= 0; i
< SPA_FEATURES
; i
++) {
6519 VERIFY3S(-1, !=, asprintf(&buf
, "feature@%s",
6520 spa_feature_table
[i
].fi_uname
));
6521 VERIFY3U(0, ==, nvlist_add_uint64(props
, buf
, 0));
6524 VERIFY3U(0, ==, spa_create(ztest_opts
.zo_pool
, nvroot
, props
, NULL
));
6525 nvlist_free(nvroot
);
6528 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
6529 zs
->zs_metaslab_sz
=
6530 1ULL << spa
->spa_root_vdev
->vdev_child
[0]->vdev_ms_shift
;
6531 spa_close(spa
, FTAG
);
6535 ztest_run_zdb(ztest_opts
.zo_pool
);
6539 ztest_run_zdb(ztest_opts
.zo_pool
);
6541 (void) rwlock_destroy(&ztest_name_lock
);
6542 mutex_destroy(&ztest_vdev_lock
);
6548 static char ztest_name_data
[] = "/tmp/ztest.data.XXXXXX";
6550 ztest_fd_data
= mkstemp(ztest_name_data
);
6551 ASSERT3S(ztest_fd_data
, >=, 0);
6552 (void) unlink(ztest_name_data
);
6556 shared_data_size(ztest_shared_hdr_t
*hdr
)
6560 size
= hdr
->zh_hdr_size
;
6561 size
+= hdr
->zh_opts_size
;
6562 size
+= hdr
->zh_size
;
6563 size
+= hdr
->zh_stats_size
* hdr
->zh_stats_count
;
6564 size
+= hdr
->zh_ds_size
* hdr
->zh_ds_count
;
6573 ztest_shared_hdr_t
*hdr
;
6575 hdr
= (void *)mmap(0, P2ROUNDUP(sizeof (*hdr
), getpagesize()),
6576 PROT_READ
| PROT_WRITE
, MAP_SHARED
, ztest_fd_data
, 0);
6577 ASSERT(hdr
!= MAP_FAILED
);
6579 VERIFY3U(0, ==, ftruncate(ztest_fd_data
, sizeof (ztest_shared_hdr_t
)));
6581 hdr
->zh_hdr_size
= sizeof (ztest_shared_hdr_t
);
6582 hdr
->zh_opts_size
= sizeof (ztest_shared_opts_t
);
6583 hdr
->zh_size
= sizeof (ztest_shared_t
);
6584 hdr
->zh_stats_size
= sizeof (ztest_shared_callstate_t
);
6585 hdr
->zh_stats_count
= ZTEST_FUNCS
;
6586 hdr
->zh_ds_size
= sizeof (ztest_shared_ds_t
);
6587 hdr
->zh_ds_count
= ztest_opts
.zo_datasets
;
6589 size
= shared_data_size(hdr
);
6590 VERIFY3U(0, ==, ftruncate(ztest_fd_data
, size
));
6592 (void) munmap((caddr_t
)hdr
, P2ROUNDUP(sizeof (*hdr
), getpagesize()));
6599 ztest_shared_hdr_t
*hdr
;
6602 hdr
= (void *)mmap(0, P2ROUNDUP(sizeof (*hdr
), getpagesize()),
6603 PROT_READ
, MAP_SHARED
, ztest_fd_data
, 0);
6604 ASSERT(hdr
!= MAP_FAILED
);
6606 size
= shared_data_size(hdr
);
6608 (void) munmap((caddr_t
)hdr
, P2ROUNDUP(sizeof (*hdr
), getpagesize()));
6609 hdr
= ztest_shared_hdr
= (void *)mmap(0, P2ROUNDUP(size
, getpagesize()),
6610 PROT_READ
| PROT_WRITE
, MAP_SHARED
, ztest_fd_data
, 0);
6611 ASSERT(hdr
!= MAP_FAILED
);
6612 buf
= (uint8_t *)hdr
;
6614 offset
= hdr
->zh_hdr_size
;
6615 ztest_shared_opts
= (void *)&buf
[offset
];
6616 offset
+= hdr
->zh_opts_size
;
6617 ztest_shared
= (void *)&buf
[offset
];
6618 offset
+= hdr
->zh_size
;
6619 ztest_shared_callstate
= (void *)&buf
[offset
];
6620 offset
+= hdr
->zh_stats_size
* hdr
->zh_stats_count
;
6621 ztest_shared_ds
= (void *)&buf
[offset
];
6625 exec_child(char *cmd
, char *libpath
, boolean_t ignorekill
, int *statusp
)
6629 char *cmdbuf
= NULL
;
6634 cmdbuf
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
6635 (void) strlcpy(cmdbuf
, getexecname(), MAXPATHLEN
);
6640 fatal(1, "fork failed");
6642 if (pid
== 0) { /* child */
6643 char *emptyargv
[2] = { cmd
, NULL
};
6644 char fd_data_str
[12];
6646 struct rlimit rl
= { 1024, 1024 };
6647 (void) setrlimit(RLIMIT_NOFILE
, &rl
);
6649 (void) close(ztest_fd_rand
);
6650 VERIFY(11 >= snprintf(fd_data_str
, 12, "%d", ztest_fd_data
));
6651 VERIFY(0 == setenv("ZTEST_FD_DATA", fd_data_str
, 1));
6653 (void) enable_extended_FILE_stdio(-1, -1);
6654 if (libpath
!= NULL
)
6655 VERIFY(0 == setenv("LD_LIBRARY_PATH", libpath
, 1));
6656 (void) execv(cmd
, emptyargv
);
6657 ztest_dump_core
= B_FALSE
;
6658 fatal(B_TRUE
, "exec failed: %s", cmd
);
6661 if (cmdbuf
!= NULL
) {
6662 umem_free(cmdbuf
, MAXPATHLEN
);
6666 while (waitpid(pid
, &status
, 0) != pid
)
6668 if (statusp
!= NULL
)
6671 if (WIFEXITED(status
)) {
6672 if (WEXITSTATUS(status
) != 0) {
6673 (void) fprintf(stderr
, "child exited with code %d\n",
6674 WEXITSTATUS(status
));
6678 } else if (WIFSIGNALED(status
)) {
6679 if (!ignorekill
|| WTERMSIG(status
) != SIGKILL
) {
6680 (void) fprintf(stderr
, "child died with signal %d\n",
6686 (void) fprintf(stderr
, "something strange happened to child\n");
6693 ztest_run_init(void)
6697 ztest_shared_t
*zs
= ztest_shared
;
6699 ASSERT(ztest_opts
.zo_init
!= 0);
6702 * Blow away any existing copy of zpool.cache
6704 (void) remove(spa_config_path
);
6707 * Create and initialize our storage pool.
6709 for (i
= 1; i
<= ztest_opts
.zo_init
; i
++) {
6710 bzero(zs
, sizeof (ztest_shared_t
));
6711 if (ztest_opts
.zo_verbose
>= 3 &&
6712 ztest_opts
.zo_init
!= 1) {
6713 (void) printf("ztest_init(), pass %d\n", i
);
6720 main(int argc
, char **argv
)
6728 ztest_shared_callstate_t
*zc
;
6735 char *fd_data_str
= getenv("ZTEST_FD_DATA");
6736 struct sigaction action
;
6738 (void) setvbuf(stdout
, NULL
, _IOLBF
, 0);
6740 dprintf_setup(&argc
, argv
);
6742 action
.sa_handler
= sig_handler
;
6743 sigemptyset(&action
.sa_mask
);
6744 action
.sa_flags
= 0;
6746 if (sigaction(SIGSEGV
, &action
, NULL
) < 0) {
6747 (void) fprintf(stderr
, "ztest: cannot catch SIGSEGV: %s.\n",
6752 if (sigaction(SIGABRT
, &action
, NULL
) < 0) {
6753 (void) fprintf(stderr
, "ztest: cannot catch SIGABRT: %s.\n",
6758 ztest_fd_rand
= open("/dev/urandom", O_RDONLY
);
6759 ASSERT3S(ztest_fd_rand
, >=, 0);
6762 process_options(argc
, argv
);
6767 bcopy(&ztest_opts
, ztest_shared_opts
,
6768 sizeof (*ztest_shared_opts
));
6770 ztest_fd_data
= atoi(fd_data_str
);
6772 bcopy(ztest_shared_opts
, &ztest_opts
, sizeof (ztest_opts
));
6774 ASSERT3U(ztest_opts
.zo_datasets
, ==, ztest_shared_hdr
->zh_ds_count
);
6776 /* Override location of zpool.cache */
6777 VERIFY(asprintf((char **)&spa_config_path
, "%s/zpool.cache",
6778 ztest_opts
.zo_dir
) != -1);
6780 ztest_ds
= umem_alloc(ztest_opts
.zo_datasets
* sizeof (ztest_ds_t
),
6785 metaslab_gang_bang
= ztest_opts
.zo_metaslab_gang_bang
;
6786 metaslab_df_alloc_threshold
=
6787 zs
->zs_metaslab_df_alloc_threshold
;
6796 hasalt
= (strlen(ztest_opts
.zo_alt_ztest
) != 0);
6798 if (ztest_opts
.zo_verbose
>= 1) {
6799 (void) printf("%llu vdevs, %d datasets, %d threads,"
6800 " %llu seconds...\n",
6801 (u_longlong_t
)ztest_opts
.zo_vdevs
,
6802 ztest_opts
.zo_datasets
,
6803 ztest_opts
.zo_threads
,
6804 (u_longlong_t
)ztest_opts
.zo_time
);
6807 cmd
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
6808 (void) strlcpy(cmd
, getexecname(), MAXNAMELEN
);
6810 zs
->zs_do_init
= B_TRUE
;
6811 if (strlen(ztest_opts
.zo_alt_ztest
) != 0) {
6812 if (ztest_opts
.zo_verbose
>= 1) {
6813 (void) printf("Executing older ztest for "
6814 "initialization: %s\n", ztest_opts
.zo_alt_ztest
);
6816 VERIFY(!exec_child(ztest_opts
.zo_alt_ztest
,
6817 ztest_opts
.zo_alt_libpath
, B_FALSE
, NULL
));
6819 VERIFY(!exec_child(NULL
, NULL
, B_FALSE
, NULL
));
6821 zs
->zs_do_init
= B_FALSE
;
6823 zs
->zs_proc_start
= gethrtime();
6824 zs
->zs_proc_stop
= zs
->zs_proc_start
+ ztest_opts
.zo_time
* NANOSEC
;
6826 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
6827 zi
= &ztest_info
[f
];
6828 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6829 if (zs
->zs_proc_start
+ zi
->zi_interval
[0] > zs
->zs_proc_stop
)
6830 zc
->zc_next
= UINT64_MAX
;
6832 zc
->zc_next
= zs
->zs_proc_start
+
6833 ztest_random(2 * zi
->zi_interval
[0] + 1);
6837 * Run the tests in a loop. These tests include fault injection
6838 * to verify that self-healing data works, and forced crashes
6839 * to verify that we never lose on-disk consistency.
6841 while (gethrtime() < zs
->zs_proc_stop
) {
6846 * Initialize the workload counters for each function.
6848 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
6849 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6854 /* Set the allocation switch size */
6855 zs
->zs_metaslab_df_alloc_threshold
=
6856 ztest_random(zs
->zs_metaslab_sz
/ 4) + 1;
6858 if (!hasalt
|| ztest_random(2) == 0) {
6859 if (hasalt
&& ztest_opts
.zo_verbose
>= 1) {
6860 (void) printf("Executing newer ztest: %s\n",
6864 killed
= exec_child(cmd
, NULL
, B_TRUE
, &status
);
6866 if (hasalt
&& ztest_opts
.zo_verbose
>= 1) {
6867 (void) printf("Executing older ztest: %s\n",
6868 ztest_opts
.zo_alt_ztest
);
6871 killed
= exec_child(ztest_opts
.zo_alt_ztest
,
6872 ztest_opts
.zo_alt_libpath
, B_TRUE
, &status
);
6879 if (ztest_opts
.zo_verbose
>= 1) {
6880 hrtime_t now
= gethrtime();
6882 now
= MIN(now
, zs
->zs_proc_stop
);
6883 print_time(zs
->zs_proc_stop
- now
, timebuf
);
6884 nicenum(zs
->zs_space
, numbuf
);
6886 (void) printf("Pass %3d, %8s, %3llu ENOSPC, "
6887 "%4.1f%% of %5s used, %3.0f%% done, %8s to go\n",
6889 WIFEXITED(status
) ? "Complete" : "SIGKILL",
6890 (u_longlong_t
)zs
->zs_enospc_count
,
6891 100.0 * zs
->zs_alloc
/ zs
->zs_space
,
6893 100.0 * (now
- zs
->zs_proc_start
) /
6894 (ztest_opts
.zo_time
* NANOSEC
), timebuf
);
6897 if (ztest_opts
.zo_verbose
>= 2) {
6898 (void) printf("\nWorkload summary:\n\n");
6899 (void) printf("%7s %9s %s\n",
6900 "Calls", "Time", "Function");
6901 (void) printf("%7s %9s %s\n",
6902 "-----", "----", "--------");
6903 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
6904 zi
= &ztest_info
[f
];
6905 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6906 print_time(zc
->zc_time
, timebuf
);
6907 (void) printf("%7llu %9s %s\n",
6908 (u_longlong_t
)zc
->zc_count
, timebuf
,
6911 (void) printf("\n");
6915 * It's possible that we killed a child during a rename test,
6916 * in which case we'll have a 'ztest_tmp' pool lying around
6917 * instead of 'ztest'. Do a blind rename in case this happened.
6920 if (spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
) == 0) {
6921 spa_close(spa
, FTAG
);
6923 char tmpname
[ZFS_MAX_DATASET_NAME_LEN
];
6925 kernel_init(FREAD
| FWRITE
);
6926 (void) snprintf(tmpname
, sizeof (tmpname
), "%s_tmp",
6927 ztest_opts
.zo_pool
);
6928 (void) spa_rename(tmpname
, ztest_opts
.zo_pool
);
6932 ztest_run_zdb(ztest_opts
.zo_pool
);
6935 if (ztest_opts
.zo_verbose
>= 1) {
6937 (void) printf("%d runs of older ztest: %s\n", older
,
6938 ztest_opts
.zo_alt_ztest
);
6939 (void) printf("%d runs of newer ztest: %s\n", newer
,
6942 (void) printf("%d killed, %d completed, %.0f%% kill rate\n",
6943 kills
, iters
- kills
, (100.0 * kills
) / MAX(1, iters
));
6946 umem_free(cmd
, MAXNAMELEN
);