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, 2016 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>
119 #include <stdio_ext.h>
126 #include <sys/fs/zfs.h>
127 #include <zfs_fletcher.h>
128 #include <libnvpair.h>
131 #include <execinfo.h> /* for backtrace() */
134 static int ztest_fd_data
= -1;
135 static int ztest_fd_rand
= -1;
137 typedef struct ztest_shared_hdr
{
138 uint64_t zh_hdr_size
;
139 uint64_t zh_opts_size
;
141 uint64_t zh_stats_size
;
142 uint64_t zh_stats_count
;
144 uint64_t zh_ds_count
;
145 } ztest_shared_hdr_t
;
147 static ztest_shared_hdr_t
*ztest_shared_hdr
;
149 typedef struct ztest_shared_opts
{
150 char zo_pool
[ZFS_MAX_DATASET_NAME_LEN
];
151 char zo_dir
[ZFS_MAX_DATASET_NAME_LEN
];
152 char zo_alt_ztest
[MAXNAMELEN
];
153 char zo_alt_libpath
[MAXNAMELEN
];
155 uint64_t zo_vdevtime
;
163 uint64_t zo_passtime
;
164 uint64_t zo_killrate
;
168 uint64_t zo_maxloops
;
169 uint64_t zo_metaslab_gang_bang
;
171 } ztest_shared_opts_t
;
173 static const ztest_shared_opts_t ztest_opts_defaults
= {
174 .zo_pool
= { 'z', 't', 'e', 's', 't', '\0' },
175 .zo_dir
= { '/', 't', 'm', 'p', '\0' },
176 .zo_alt_ztest
= { '\0' },
177 .zo_alt_libpath
= { '\0' },
179 .zo_ashift
= SPA_MINBLOCKSHIFT
,
182 .zo_raidz_parity
= 1,
183 .zo_vdev_size
= SPA_MINDEVSIZE
* 4, /* 256m default size */
186 .zo_passtime
= 60, /* 60 seconds */
187 .zo_killrate
= 70, /* 70% kill rate */
191 .zo_time
= 300, /* 5 minutes */
192 .zo_maxloops
= 50, /* max loops during spa_freeze() */
193 .zo_metaslab_gang_bang
= 32 << 10
196 extern uint64_t metaslab_gang_bang
;
197 extern uint64_t metaslab_df_alloc_threshold
;
198 extern int metaslab_preload_limit
;
199 extern boolean_t zfs_compressed_arc_enabled
;
200 extern int zfs_abd_scatter_enabled
;
202 static ztest_shared_opts_t
*ztest_shared_opts
;
203 static ztest_shared_opts_t ztest_opts
;
204 static char *ztest_wkeydata
= "abcdefghijklmnopqrstuvwxyz012345";
206 typedef struct ztest_shared_ds
{
210 static ztest_shared_ds_t
*ztest_shared_ds
;
211 #define ZTEST_GET_SHARED_DS(d) (&ztest_shared_ds[d])
213 #define BT_MAGIC 0x123456789abcdefULL
214 #define MAXFAULTS() \
215 (MAX(zs->zs_mirrors, 1) * (ztest_opts.zo_raidz_parity + 1) - 1)
219 ZTEST_IO_WRITE_PATTERN
,
220 ZTEST_IO_WRITE_ZEROES
,
227 typedef struct ztest_block_tag
{
231 uint64_t bt_dnodesize
;
238 typedef struct bufwad
{
256 #define ZTEST_RANGE_LOCKS 64
257 #define ZTEST_OBJECT_LOCKS 64
260 * Object descriptor. Used as a template for object lookup/create/remove.
262 typedef struct ztest_od
{
265 dmu_object_type_t od_type
;
266 dmu_object_type_t od_crtype
;
267 uint64_t od_blocksize
;
268 uint64_t od_crblocksize
;
269 uint64_t od_crdnodesize
;
272 char od_name
[ZFS_MAX_DATASET_NAME_LEN
];
278 typedef struct ztest_ds
{
279 ztest_shared_ds_t
*zd_shared
;
281 rwlock_t zd_zilog_lock
;
283 ztest_od_t
*zd_od
; /* debugging aid */
284 char zd_name
[ZFS_MAX_DATASET_NAME_LEN
];
285 kmutex_t zd_dirobj_lock
;
286 rll_t zd_object_lock
[ZTEST_OBJECT_LOCKS
];
287 zll_t zd_range_lock
[ZTEST_RANGE_LOCKS
];
291 * Per-iteration state.
293 typedef void ztest_func_t(ztest_ds_t
*zd
, uint64_t id
);
295 typedef struct ztest_info
{
296 ztest_func_t
*zi_func
; /* test function */
297 uint64_t zi_iters
; /* iterations per execution */
298 uint64_t *zi_interval
; /* execute every <interval> seconds */
299 const char *zi_funcname
; /* name of test function */
302 typedef struct ztest_shared_callstate
{
303 uint64_t zc_count
; /* per-pass count */
304 uint64_t zc_time
; /* per-pass time */
305 uint64_t zc_next
; /* next time to call this function */
306 } ztest_shared_callstate_t
;
308 static ztest_shared_callstate_t
*ztest_shared_callstate
;
309 #define ZTEST_GET_SHARED_CALLSTATE(c) (&ztest_shared_callstate[c])
311 ztest_func_t ztest_dmu_read_write
;
312 ztest_func_t ztest_dmu_write_parallel
;
313 ztest_func_t ztest_dmu_object_alloc_free
;
314 ztest_func_t ztest_dmu_commit_callbacks
;
315 ztest_func_t ztest_zap
;
316 ztest_func_t ztest_zap_parallel
;
317 ztest_func_t ztest_zil_commit
;
318 ztest_func_t ztest_zil_remount
;
319 ztest_func_t ztest_dmu_read_write_zcopy
;
320 ztest_func_t ztest_dmu_objset_create_destroy
;
321 ztest_func_t ztest_dmu_prealloc
;
322 ztest_func_t ztest_fzap
;
323 ztest_func_t ztest_dmu_snapshot_create_destroy
;
324 ztest_func_t ztest_dsl_prop_get_set
;
325 ztest_func_t ztest_spa_prop_get_set
;
326 ztest_func_t ztest_spa_create_destroy
;
327 ztest_func_t ztest_fault_inject
;
328 ztest_func_t ztest_ddt_repair
;
329 ztest_func_t ztest_dmu_snapshot_hold
;
330 ztest_func_t ztest_mmp_enable_disable
;
331 ztest_func_t ztest_spa_rename
;
332 ztest_func_t ztest_scrub
;
333 ztest_func_t ztest_dsl_dataset_promote_busy
;
334 ztest_func_t ztest_vdev_attach_detach
;
335 ztest_func_t ztest_vdev_LUN_growth
;
336 ztest_func_t ztest_vdev_add_remove
;
337 ztest_func_t ztest_vdev_aux_add_remove
;
338 ztest_func_t ztest_split_pool
;
339 ztest_func_t ztest_reguid
;
340 ztest_func_t ztest_spa_upgrade
;
341 ztest_func_t ztest_fletcher
;
342 ztest_func_t ztest_fletcher_incr
;
343 ztest_func_t ztest_verify_dnode_bt
;
345 uint64_t zopt_always
= 0ULL * NANOSEC
; /* all the time */
346 uint64_t zopt_incessant
= 1ULL * NANOSEC
/ 10; /* every 1/10 second */
347 uint64_t zopt_often
= 1ULL * NANOSEC
; /* every second */
348 uint64_t zopt_sometimes
= 10ULL * NANOSEC
; /* every 10 seconds */
349 uint64_t zopt_rarely
= 60ULL * NANOSEC
; /* every 60 seconds */
351 #define ZTI_INIT(func, iters, interval) \
352 { .zi_func = (func), \
353 .zi_iters = (iters), \
354 .zi_interval = (interval), \
355 .zi_funcname = # func }
357 ztest_info_t ztest_info
[] = {
358 ZTI_INIT(ztest_dmu_read_write
, 1, &zopt_always
),
359 ZTI_INIT(ztest_dmu_write_parallel
, 10, &zopt_always
),
360 ZTI_INIT(ztest_dmu_object_alloc_free
, 1, &zopt_always
),
361 ZTI_INIT(ztest_dmu_commit_callbacks
, 1, &zopt_always
),
362 ZTI_INIT(ztest_zap
, 30, &zopt_always
),
363 ZTI_INIT(ztest_zap_parallel
, 100, &zopt_always
),
364 ZTI_INIT(ztest_split_pool
, 1, &zopt_always
),
365 ZTI_INIT(ztest_zil_commit
, 1, &zopt_incessant
),
366 ZTI_INIT(ztest_zil_remount
, 1, &zopt_sometimes
),
367 ZTI_INIT(ztest_dmu_read_write_zcopy
, 1, &zopt_often
),
368 ZTI_INIT(ztest_dmu_objset_create_destroy
, 1, &zopt_often
),
369 ZTI_INIT(ztest_dsl_prop_get_set
, 1, &zopt_often
),
370 ZTI_INIT(ztest_spa_prop_get_set
, 1, &zopt_sometimes
),
372 ZTI_INIT(ztest_dmu_prealloc
, 1, &zopt_sometimes
),
374 ZTI_INIT(ztest_fzap
, 1, &zopt_sometimes
),
375 ZTI_INIT(ztest_dmu_snapshot_create_destroy
, 1, &zopt_sometimes
),
376 ZTI_INIT(ztest_spa_create_destroy
, 1, &zopt_sometimes
),
377 ZTI_INIT(ztest_fault_inject
, 1, &zopt_sometimes
),
378 ZTI_INIT(ztest_ddt_repair
, 1, &zopt_sometimes
),
379 ZTI_INIT(ztest_dmu_snapshot_hold
, 1, &zopt_sometimes
),
380 ZTI_INIT(ztest_mmp_enable_disable
, 1, &zopt_sometimes
),
381 ZTI_INIT(ztest_reguid
, 1, &zopt_rarely
),
382 ZTI_INIT(ztest_spa_rename
, 1, &zopt_rarely
),
383 ZTI_INIT(ztest_scrub
, 1, &zopt_rarely
),
384 ZTI_INIT(ztest_spa_upgrade
, 1, &zopt_rarely
),
385 ZTI_INIT(ztest_dsl_dataset_promote_busy
, 1, &zopt_rarely
),
386 ZTI_INIT(ztest_vdev_attach_detach
, 1, &zopt_sometimes
),
387 ZTI_INIT(ztest_vdev_LUN_growth
, 1, &zopt_rarely
),
388 ZTI_INIT(ztest_vdev_add_remove
, 1, &ztest_opts
.zo_vdevtime
),
389 ZTI_INIT(ztest_vdev_aux_add_remove
, 1, &ztest_opts
.zo_vdevtime
),
390 ZTI_INIT(ztest_fletcher
, 1, &zopt_rarely
),
391 ZTI_INIT(ztest_fletcher_incr
, 1, &zopt_rarely
),
392 ZTI_INIT(ztest_verify_dnode_bt
, 1, &zopt_sometimes
),
395 #define ZTEST_FUNCS (sizeof (ztest_info) / sizeof (ztest_info_t))
398 * The following struct is used to hold a list of uncalled commit callbacks.
399 * The callbacks are ordered by txg number.
401 typedef struct ztest_cb_list
{
402 kmutex_t zcl_callbacks_lock
;
403 list_t zcl_callbacks
;
407 * Stuff we need to share writably between parent and child.
409 typedef struct ztest_shared
{
410 boolean_t zs_do_init
;
411 hrtime_t zs_proc_start
;
412 hrtime_t zs_proc_stop
;
413 hrtime_t zs_thread_start
;
414 hrtime_t zs_thread_stop
;
415 hrtime_t zs_thread_kill
;
416 uint64_t zs_enospc_count
;
417 uint64_t zs_vdev_next_leaf
;
418 uint64_t zs_vdev_aux
;
423 uint64_t zs_metaslab_sz
;
424 uint64_t zs_metaslab_df_alloc_threshold
;
428 #define ID_PARALLEL -1ULL
430 static char ztest_dev_template
[] = "%s/%s.%llua";
431 static char ztest_aux_template
[] = "%s/%s.%s.%llu";
432 ztest_shared_t
*ztest_shared
;
434 static spa_t
*ztest_spa
= NULL
;
435 static ztest_ds_t
*ztest_ds
;
437 static kmutex_t ztest_vdev_lock
;
440 * The ztest_name_lock protects the pool and dataset namespace used by
441 * the individual tests. To modify the namespace, consumers must grab
442 * this lock as writer. Grabbing the lock as reader will ensure that the
443 * namespace does not change while the lock is held.
445 static rwlock_t ztest_name_lock
;
447 static boolean_t ztest_dump_core
= B_TRUE
;
448 static boolean_t ztest_exiting
;
450 /* Global commit callback list */
451 static ztest_cb_list_t zcl
;
452 /* Commit cb delay */
453 static uint64_t zc_min_txg_delay
= UINT64_MAX
;
454 static int zc_cb_counter
= 0;
457 * Minimum number of commit callbacks that need to be registered for us to check
458 * whether the minimum txg delay is acceptable.
460 #define ZTEST_COMMIT_CB_MIN_REG 100
463 * If a number of txgs equal to this threshold have been created after a commit
464 * callback has been registered but not called, then we assume there is an
465 * implementation bug.
467 #define ZTEST_COMMIT_CB_THRESH (TXG_CONCURRENT_STATES + 1000)
469 extern uint64_t metaslab_gang_bang
;
470 extern uint64_t metaslab_df_alloc_threshold
;
473 ZTEST_META_DNODE
= 0,
478 static void usage(boolean_t
) __NORETURN
;
481 * These libumem hooks provide a reasonable set of defaults for the allocator's
482 * debugging facilities.
485 _umem_debug_init(void)
487 return ("default,verbose"); /* $UMEM_DEBUG setting */
491 _umem_logging_init(void)
493 return ("fail,contents"); /* $UMEM_LOGGING setting */
496 #define BACKTRACE_SZ 100
498 static void sig_handler(int signo
)
500 struct sigaction action
;
501 #ifdef __GLIBC__ /* backtrace() is a GNU extension */
503 void *buffer
[BACKTRACE_SZ
];
505 nptrs
= backtrace(buffer
, BACKTRACE_SZ
);
506 backtrace_symbols_fd(buffer
, nptrs
, STDERR_FILENO
);
510 * Restore default action and re-raise signal so SIGSEGV and
511 * SIGABRT can trigger a core dump.
513 action
.sa_handler
= SIG_DFL
;
514 sigemptyset(&action
.sa_mask
);
516 (void) sigaction(signo
, &action
, NULL
);
520 #define FATAL_MSG_SZ 1024
525 fatal(int do_perror
, char *message
, ...)
528 int save_errno
= errno
;
531 (void) fflush(stdout
);
532 buf
= umem_alloc(FATAL_MSG_SZ
, UMEM_NOFAIL
);
534 va_start(args
, message
);
535 (void) sprintf(buf
, "ztest: ");
537 (void) vsprintf(buf
+ strlen(buf
), message
, args
);
540 (void) snprintf(buf
+ strlen(buf
), FATAL_MSG_SZ
- strlen(buf
),
541 ": %s", strerror(save_errno
));
543 (void) fprintf(stderr
, "%s\n", buf
);
544 fatal_msg
= buf
; /* to ease debugging */
551 str2shift(const char *buf
)
553 const char *ends
= "BKMGTPEZ";
558 for (i
= 0; i
< strlen(ends
); i
++) {
559 if (toupper(buf
[0]) == ends
[i
])
562 if (i
== strlen(ends
)) {
563 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n",
567 if (buf
[1] == '\0' || (toupper(buf
[1]) == 'B' && buf
[2] == '\0')) {
570 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n", buf
);
576 nicenumtoull(const char *buf
)
581 val
= strtoull(buf
, &end
, 0);
583 (void) fprintf(stderr
, "ztest: bad numeric value: %s\n", buf
);
585 } else if (end
[0] == '.') {
586 double fval
= strtod(buf
, &end
);
587 fval
*= pow(2, str2shift(end
));
588 if (fval
> UINT64_MAX
) {
589 (void) fprintf(stderr
, "ztest: value too large: %s\n",
593 val
= (uint64_t)fval
;
595 int shift
= str2shift(end
);
596 if (shift
>= 64 || (val
<< shift
) >> shift
!= val
) {
597 (void) fprintf(stderr
, "ztest: value too large: %s\n",
607 usage(boolean_t requested
)
609 const ztest_shared_opts_t
*zo
= &ztest_opts_defaults
;
611 char nice_vdev_size
[10];
612 char nice_gang_bang
[10];
613 FILE *fp
= requested
? stdout
: stderr
;
615 nicenum(zo
->zo_vdev_size
, nice_vdev_size
);
616 nicenum(zo
->zo_metaslab_gang_bang
, nice_gang_bang
);
618 (void) fprintf(fp
, "Usage: %s\n"
619 "\t[-v vdevs (default: %llu)]\n"
620 "\t[-s size_of_each_vdev (default: %s)]\n"
621 "\t[-a alignment_shift (default: %d)] use 0 for random\n"
622 "\t[-m mirror_copies (default: %d)]\n"
623 "\t[-r raidz_disks (default: %d)]\n"
624 "\t[-R raidz_parity (default: %d)]\n"
625 "\t[-d datasets (default: %d)]\n"
626 "\t[-t threads (default: %d)]\n"
627 "\t[-g gang_block_threshold (default: %s)]\n"
628 "\t[-i init_count (default: %d)] initialize pool i times\n"
629 "\t[-k kill_percentage (default: %llu%%)]\n"
630 "\t[-p pool_name (default: %s)]\n"
631 "\t[-f dir (default: %s)] file directory for vdev files\n"
632 "\t[-M] Multi-host simulate pool imported on remote host\n"
633 "\t[-V] verbose (use multiple times for ever more blather)\n"
634 "\t[-E] use existing pool instead of creating new one\n"
635 "\t[-T time (default: %llu sec)] total run time\n"
636 "\t[-F freezeloops (default: %llu)] max loops in spa_freeze()\n"
637 "\t[-P passtime (default: %llu sec)] time per pass\n"
638 "\t[-B alt_ztest (default: <none>)] alternate ztest path\n"
639 "\t[-o variable=value] ... set global variable to an unsigned\n"
640 "\t 32-bit integer value\n"
641 "\t[-h] (print help)\n"
644 (u_longlong_t
)zo
->zo_vdevs
, /* -v */
645 nice_vdev_size
, /* -s */
646 zo
->zo_ashift
, /* -a */
647 zo
->zo_mirrors
, /* -m */
648 zo
->zo_raidz
, /* -r */
649 zo
->zo_raidz_parity
, /* -R */
650 zo
->zo_datasets
, /* -d */
651 zo
->zo_threads
, /* -t */
652 nice_gang_bang
, /* -g */
653 zo
->zo_init
, /* -i */
654 (u_longlong_t
)zo
->zo_killrate
, /* -k */
655 zo
->zo_pool
, /* -p */
657 (u_longlong_t
)zo
->zo_time
, /* -T */
658 (u_longlong_t
)zo
->zo_maxloops
, /* -F */
659 (u_longlong_t
)zo
->zo_passtime
);
660 exit(requested
? 0 : 1);
664 process_options(int argc
, char **argv
)
667 ztest_shared_opts_t
*zo
= &ztest_opts
;
671 char altdir
[MAXNAMELEN
] = { 0 };
673 bcopy(&ztest_opts_defaults
, zo
, sizeof (*zo
));
675 while ((opt
= getopt(argc
, argv
,
676 "v:s:a:m:r:R:d:t:g:i:k:p:f:MVET:P:hF:B:o:")) != EOF
) {
693 value
= nicenumtoull(optarg
);
697 zo
->zo_vdevs
= value
;
700 zo
->zo_vdev_size
= MAX(SPA_MINDEVSIZE
, value
);
703 zo
->zo_ashift
= value
;
706 zo
->zo_mirrors
= value
;
709 zo
->zo_raidz
= MAX(1, value
);
712 zo
->zo_raidz_parity
= MIN(MAX(value
, 1), 3);
715 zo
->zo_datasets
= MAX(1, value
);
718 zo
->zo_threads
= MAX(1, value
);
721 zo
->zo_metaslab_gang_bang
= MAX(SPA_MINBLOCKSIZE
<< 1,
728 zo
->zo_killrate
= value
;
731 (void) strlcpy(zo
->zo_pool
, optarg
,
732 sizeof (zo
->zo_pool
));
735 path
= realpath(optarg
, NULL
);
737 (void) fprintf(stderr
, "error: %s: %s\n",
738 optarg
, strerror(errno
));
741 (void) strlcpy(zo
->zo_dir
, path
,
742 sizeof (zo
->zo_dir
));
759 zo
->zo_passtime
= MAX(1, value
);
762 zo
->zo_maxloops
= MAX(1, value
);
765 (void) strlcpy(altdir
, optarg
, sizeof (altdir
));
768 if (set_global_var(optarg
) != 0)
781 zo
->zo_raidz_parity
= MIN(zo
->zo_raidz_parity
, zo
->zo_raidz
- 1);
784 (zo
->zo_vdevs
> 0 ? zo
->zo_time
* NANOSEC
/ zo
->zo_vdevs
:
787 if (strlen(altdir
) > 0) {
795 cmd
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
796 realaltdir
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
798 VERIFY(NULL
!= realpath(getexecname(), cmd
));
799 if (0 != access(altdir
, F_OK
)) {
800 ztest_dump_core
= B_FALSE
;
801 fatal(B_TRUE
, "invalid alternate ztest path: %s",
804 VERIFY(NULL
!= realpath(altdir
, realaltdir
));
807 * 'cmd' should be of the form "<anything>/usr/bin/<isa>/ztest".
808 * We want to extract <isa> to determine if we should use
809 * 32 or 64 bit binaries.
811 bin
= strstr(cmd
, "/usr/bin/");
812 ztest
= strstr(bin
, "/ztest");
814 isalen
= ztest
- isa
;
815 (void) snprintf(zo
->zo_alt_ztest
, sizeof (zo
->zo_alt_ztest
),
816 "%s/usr/bin/%.*s/ztest", realaltdir
, isalen
, isa
);
817 (void) snprintf(zo
->zo_alt_libpath
, sizeof (zo
->zo_alt_libpath
),
818 "%s/usr/lib/%.*s", realaltdir
, isalen
, isa
);
820 if (0 != access(zo
->zo_alt_ztest
, X_OK
)) {
821 ztest_dump_core
= B_FALSE
;
822 fatal(B_TRUE
, "invalid alternate ztest: %s",
824 } else if (0 != access(zo
->zo_alt_libpath
, X_OK
)) {
825 ztest_dump_core
= B_FALSE
;
826 fatal(B_TRUE
, "invalid alternate lib directory %s",
830 umem_free(cmd
, MAXPATHLEN
);
831 umem_free(realaltdir
, MAXPATHLEN
);
836 ztest_kill(ztest_shared_t
*zs
)
838 zs
->zs_alloc
= metaslab_class_get_alloc(spa_normal_class(ztest_spa
));
839 zs
->zs_space
= metaslab_class_get_space(spa_normal_class(ztest_spa
));
842 * Before we kill off ztest, make sure that the config is updated.
843 * See comment above spa_config_sync().
845 mutex_enter(&spa_namespace_lock
);
846 spa_config_sync(ztest_spa
, B_FALSE
, B_FALSE
);
847 mutex_exit(&spa_namespace_lock
);
849 (void) kill(getpid(), SIGKILL
);
853 ztest_random(uint64_t range
)
857 ASSERT3S(ztest_fd_rand
, >=, 0);
862 if (read(ztest_fd_rand
, &r
, sizeof (r
)) != sizeof (r
))
863 fatal(1, "short read from /dev/urandom");
870 ztest_record_enospc(const char *s
)
872 ztest_shared
->zs_enospc_count
++;
876 ztest_get_ashift(void)
878 if (ztest_opts
.zo_ashift
== 0)
879 return (SPA_MINBLOCKSHIFT
+ ztest_random(5));
880 return (ztest_opts
.zo_ashift
);
884 make_vdev_file(char *path
, char *aux
, char *pool
, size_t size
, uint64_t ashift
)
890 pathbuf
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
893 ashift
= ztest_get_ashift();
899 vdev
= ztest_shared
->zs_vdev_aux
;
900 (void) snprintf(path
, MAXPATHLEN
,
901 ztest_aux_template
, ztest_opts
.zo_dir
,
902 pool
== NULL
? ztest_opts
.zo_pool
: pool
,
905 vdev
= ztest_shared
->zs_vdev_next_leaf
++;
906 (void) snprintf(path
, MAXPATHLEN
,
907 ztest_dev_template
, ztest_opts
.zo_dir
,
908 pool
== NULL
? ztest_opts
.zo_pool
: pool
, vdev
);
913 int fd
= open(path
, O_RDWR
| O_CREAT
| O_TRUNC
, 0666);
915 fatal(1, "can't open %s", path
);
916 if (ftruncate(fd
, size
) != 0)
917 fatal(1, "can't ftruncate %s", path
);
921 VERIFY(nvlist_alloc(&file
, NV_UNIQUE_NAME
, 0) == 0);
922 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_FILE
) == 0);
923 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_PATH
, path
) == 0);
924 VERIFY(nvlist_add_uint64(file
, ZPOOL_CONFIG_ASHIFT
, ashift
) == 0);
925 umem_free(pathbuf
, MAXPATHLEN
);
931 make_vdev_raidz(char *path
, char *aux
, char *pool
, size_t size
,
932 uint64_t ashift
, int r
)
934 nvlist_t
*raidz
, **child
;
938 return (make_vdev_file(path
, aux
, pool
, size
, ashift
));
939 child
= umem_alloc(r
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
941 for (c
= 0; c
< r
; c
++)
942 child
[c
] = make_vdev_file(path
, aux
, pool
, size
, ashift
);
944 VERIFY(nvlist_alloc(&raidz
, NV_UNIQUE_NAME
, 0) == 0);
945 VERIFY(nvlist_add_string(raidz
, ZPOOL_CONFIG_TYPE
,
946 VDEV_TYPE_RAIDZ
) == 0);
947 VERIFY(nvlist_add_uint64(raidz
, ZPOOL_CONFIG_NPARITY
,
948 ztest_opts
.zo_raidz_parity
) == 0);
949 VERIFY(nvlist_add_nvlist_array(raidz
, ZPOOL_CONFIG_CHILDREN
,
952 for (c
= 0; c
< r
; c
++)
953 nvlist_free(child
[c
]);
955 umem_free(child
, r
* sizeof (nvlist_t
*));
961 make_vdev_mirror(char *path
, char *aux
, char *pool
, size_t size
,
962 uint64_t ashift
, int r
, int m
)
964 nvlist_t
*mirror
, **child
;
968 return (make_vdev_raidz(path
, aux
, pool
, size
, ashift
, r
));
970 child
= umem_alloc(m
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
972 for (c
= 0; c
< m
; c
++)
973 child
[c
] = make_vdev_raidz(path
, aux
, pool
, size
, ashift
, r
);
975 VERIFY(nvlist_alloc(&mirror
, NV_UNIQUE_NAME
, 0) == 0);
976 VERIFY(nvlist_add_string(mirror
, ZPOOL_CONFIG_TYPE
,
977 VDEV_TYPE_MIRROR
) == 0);
978 VERIFY(nvlist_add_nvlist_array(mirror
, ZPOOL_CONFIG_CHILDREN
,
981 for (c
= 0; c
< m
; c
++)
982 nvlist_free(child
[c
]);
984 umem_free(child
, m
* sizeof (nvlist_t
*));
990 make_vdev_root(char *path
, char *aux
, char *pool
, size_t size
, uint64_t ashift
,
991 int log
, int r
, int m
, int t
)
993 nvlist_t
*root
, **child
;
998 child
= umem_alloc(t
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
1000 for (c
= 0; c
< t
; c
++) {
1001 child
[c
] = make_vdev_mirror(path
, aux
, pool
, size
, ashift
,
1003 VERIFY(nvlist_add_uint64(child
[c
], ZPOOL_CONFIG_IS_LOG
,
1007 VERIFY(nvlist_alloc(&root
, NV_UNIQUE_NAME
, 0) == 0);
1008 VERIFY(nvlist_add_string(root
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_ROOT
) == 0);
1009 VERIFY(nvlist_add_nvlist_array(root
, aux
? aux
: ZPOOL_CONFIG_CHILDREN
,
1012 for (c
= 0; c
< t
; c
++)
1013 nvlist_free(child
[c
]);
1015 umem_free(child
, t
* sizeof (nvlist_t
*));
1021 * Find a random spa version. Returns back a random spa version in the
1022 * range [initial_version, SPA_VERSION_FEATURES].
1025 ztest_random_spa_version(uint64_t initial_version
)
1027 uint64_t version
= initial_version
;
1029 if (version
<= SPA_VERSION_BEFORE_FEATURES
) {
1031 ztest_random(SPA_VERSION_BEFORE_FEATURES
- version
+ 1);
1034 if (version
> SPA_VERSION_BEFORE_FEATURES
)
1035 version
= SPA_VERSION_FEATURES
;
1037 ASSERT(SPA_VERSION_IS_SUPPORTED(version
));
1042 ztest_random_blocksize(void)
1045 * Choose a block size >= the ashift.
1046 * If the SPA supports new MAXBLOCKSIZE, test up to 1MB blocks.
1048 int maxbs
= SPA_OLD_MAXBLOCKSHIFT
;
1049 if (spa_maxblocksize(ztest_spa
) == SPA_MAXBLOCKSIZE
)
1051 uint64_t block_shift
=
1052 ztest_random(maxbs
- ztest_spa
->spa_max_ashift
+ 1);
1053 return (1 << (SPA_MINBLOCKSHIFT
+ block_shift
));
1057 ztest_random_dnodesize(void)
1060 int max_slots
= spa_maxdnodesize(ztest_spa
) >> DNODE_SHIFT
;
1062 if (max_slots
== DNODE_MIN_SLOTS
)
1063 return (DNODE_MIN_SIZE
);
1066 * Weight the random distribution more heavily toward smaller
1067 * dnode sizes since that is more likely to reflect real-world
1070 ASSERT3U(max_slots
, >, 4);
1071 switch (ztest_random(10)) {
1073 slots
= 5 + ztest_random(max_slots
- 4);
1076 slots
= 2 + ztest_random(3);
1083 return (slots
<< DNODE_SHIFT
);
1087 ztest_random_ibshift(void)
1089 return (DN_MIN_INDBLKSHIFT
+
1090 ztest_random(DN_MAX_INDBLKSHIFT
- DN_MIN_INDBLKSHIFT
+ 1));
1094 ztest_random_vdev_top(spa_t
*spa
, boolean_t log_ok
)
1097 vdev_t
*rvd
= spa
->spa_root_vdev
;
1100 ASSERT(spa_config_held(spa
, SCL_ALL
, RW_READER
) != 0);
1103 top
= ztest_random(rvd
->vdev_children
);
1104 tvd
= rvd
->vdev_child
[top
];
1105 } while (tvd
->vdev_ishole
|| (tvd
->vdev_islog
&& !log_ok
) ||
1106 tvd
->vdev_mg
== NULL
|| tvd
->vdev_mg
->mg_class
== NULL
);
1112 ztest_random_dsl_prop(zfs_prop_t prop
)
1117 value
= zfs_prop_random_value(prop
, ztest_random(-1ULL));
1118 } while (prop
== ZFS_PROP_CHECKSUM
&& value
== ZIO_CHECKSUM_OFF
);
1124 ztest_dsl_prop_set_uint64(char *osname
, zfs_prop_t prop
, uint64_t value
,
1127 const char *propname
= zfs_prop_to_name(prop
);
1128 const char *valname
;
1133 error
= dsl_prop_set_int(osname
, propname
,
1134 (inherit
? ZPROP_SRC_NONE
: ZPROP_SRC_LOCAL
), value
);
1136 if (error
== ENOSPC
) {
1137 ztest_record_enospc(FTAG
);
1142 setpoint
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
1143 VERIFY0(dsl_prop_get_integer(osname
, propname
, &curval
, setpoint
));
1145 if (ztest_opts
.zo_verbose
>= 6) {
1148 err
= zfs_prop_index_to_string(prop
, curval
, &valname
);
1150 (void) printf("%s %s = %llu at '%s'\n", osname
,
1151 propname
, (unsigned long long)curval
, setpoint
);
1153 (void) printf("%s %s = %s at '%s'\n",
1154 osname
, propname
, valname
, setpoint
);
1156 umem_free(setpoint
, MAXPATHLEN
);
1162 ztest_spa_prop_set_uint64(zpool_prop_t prop
, uint64_t value
)
1164 spa_t
*spa
= ztest_spa
;
1165 nvlist_t
*props
= NULL
;
1168 VERIFY(nvlist_alloc(&props
, NV_UNIQUE_NAME
, 0) == 0);
1169 VERIFY(nvlist_add_uint64(props
, zpool_prop_to_name(prop
), value
) == 0);
1171 error
= spa_prop_set(spa
, props
);
1175 if (error
== ENOSPC
) {
1176 ztest_record_enospc(FTAG
);
1185 ztest_dmu_objset_own(const char *name
, dmu_objset_type_t type
,
1186 boolean_t readonly
, boolean_t decrypt
, void *tag
, objset_t
**osp
)
1190 err
= dmu_objset_own(name
, type
, readonly
, decrypt
, tag
, osp
);
1191 if (decrypt
&& err
== EACCES
) {
1192 char ddname
[ZFS_MAX_DATASET_NAME_LEN
];
1193 dsl_crypto_params_t
*dcp
;
1194 nvlist_t
*crypto_args
= fnvlist_alloc();
1197 /* spa_keystore_load_wkey() expects a dsl dir name */
1198 strcpy(ddname
, name
);
1199 cp
= strchr(ddname
, '@');
1203 fnvlist_add_uint8_array(crypto_args
, "wkeydata",
1204 (uint8_t *)ztest_wkeydata
, WRAPPING_KEY_LEN
);
1205 VERIFY0(dsl_crypto_params_create_nvlist(DCP_CMD_NONE
, NULL
,
1206 crypto_args
, &dcp
));
1207 err
= spa_keystore_load_wkey(ddname
, dcp
, B_FALSE
);
1208 dsl_crypto_params_free(dcp
, B_FALSE
);
1209 fnvlist_free(crypto_args
);
1214 err
= dmu_objset_own(name
, type
, readonly
, decrypt
, tag
, osp
);
1222 * Object and range lock mechanics
1225 list_node_t z_lnode
;
1226 refcount_t z_refcnt
;
1228 zfs_rlock_t z_range_lock
;
1233 ztest_znode_t
*z_ztznode
;
1236 static ztest_znode_t
*
1237 ztest_znode_init(uint64_t object
)
1239 ztest_znode_t
*zp
= umem_alloc(sizeof (*zp
), UMEM_NOFAIL
);
1241 list_link_init(&zp
->z_lnode
);
1242 refcount_create(&zp
->z_refcnt
);
1243 zp
->z_object
= object
;
1244 zfs_rlock_init(&zp
->z_range_lock
);
1250 ztest_znode_fini(ztest_znode_t
*zp
)
1252 ASSERT(refcount_is_zero(&zp
->z_refcnt
));
1253 zfs_rlock_destroy(&zp
->z_range_lock
);
1255 refcount_destroy(&zp
->z_refcnt
);
1256 list_link_init(&zp
->z_lnode
);
1257 umem_free(zp
, sizeof (*zp
));
1261 ztest_zll_init(zll_t
*zll
)
1263 mutex_init(&zll
->z_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
1264 list_create(&zll
->z_list
, sizeof (ztest_znode_t
),
1265 offsetof(ztest_znode_t
, z_lnode
));
1269 ztest_zll_destroy(zll_t
*zll
)
1271 list_destroy(&zll
->z_list
);
1272 mutex_destroy(&zll
->z_lock
);
1275 #define RL_TAG "range_lock"
1276 static ztest_znode_t
*
1277 ztest_znode_get(ztest_ds_t
*zd
, uint64_t object
)
1279 zll_t
*zll
= &zd
->zd_range_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1280 ztest_znode_t
*zp
= NULL
;
1281 mutex_enter(&zll
->z_lock
);
1282 for (zp
= list_head(&zll
->z_list
); (zp
);
1283 zp
= list_next(&zll
->z_list
, zp
)) {
1284 if (zp
->z_object
== object
) {
1285 refcount_add(&zp
->z_refcnt
, RL_TAG
);
1290 zp
= ztest_znode_init(object
);
1291 refcount_add(&zp
->z_refcnt
, RL_TAG
);
1292 list_insert_head(&zll
->z_list
, zp
);
1294 mutex_exit(&zll
->z_lock
);
1299 ztest_znode_put(ztest_ds_t
*zd
, ztest_znode_t
*zp
)
1302 ASSERT3U(zp
->z_object
, !=, 0);
1303 zll
= &zd
->zd_range_lock
[zp
->z_object
& (ZTEST_OBJECT_LOCKS
- 1)];
1304 mutex_enter(&zll
->z_lock
);
1305 refcount_remove(&zp
->z_refcnt
, RL_TAG
);
1306 if (refcount_is_zero(&zp
->z_refcnt
)) {
1307 list_remove(&zll
->z_list
, zp
);
1308 ztest_znode_fini(zp
);
1310 mutex_exit(&zll
->z_lock
);
1315 ztest_rll_init(rll_t
*rll
)
1317 rll
->rll_writer
= NULL
;
1318 rll
->rll_readers
= 0;
1319 mutex_init(&rll
->rll_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
1320 cv_init(&rll
->rll_cv
, NULL
, CV_DEFAULT
, NULL
);
1324 ztest_rll_destroy(rll_t
*rll
)
1326 ASSERT(rll
->rll_writer
== NULL
);
1327 ASSERT(rll
->rll_readers
== 0);
1328 mutex_destroy(&rll
->rll_lock
);
1329 cv_destroy(&rll
->rll_cv
);
1333 ztest_rll_lock(rll_t
*rll
, rl_type_t type
)
1335 mutex_enter(&rll
->rll_lock
);
1337 if (type
== RL_READER
) {
1338 while (rll
->rll_writer
!= NULL
)
1339 (void) cv_wait(&rll
->rll_cv
, &rll
->rll_lock
);
1342 while (rll
->rll_writer
!= NULL
|| rll
->rll_readers
)
1343 (void) cv_wait(&rll
->rll_cv
, &rll
->rll_lock
);
1344 rll
->rll_writer
= curthread
;
1347 mutex_exit(&rll
->rll_lock
);
1351 ztest_rll_unlock(rll_t
*rll
)
1353 mutex_enter(&rll
->rll_lock
);
1355 if (rll
->rll_writer
) {
1356 ASSERT(rll
->rll_readers
== 0);
1357 rll
->rll_writer
= NULL
;
1359 ASSERT(rll
->rll_readers
!= 0);
1360 ASSERT(rll
->rll_writer
== NULL
);
1364 if (rll
->rll_writer
== NULL
&& rll
->rll_readers
== 0)
1365 cv_broadcast(&rll
->rll_cv
);
1367 mutex_exit(&rll
->rll_lock
);
1371 ztest_object_lock(ztest_ds_t
*zd
, uint64_t object
, rl_type_t type
)
1373 rll_t
*rll
= &zd
->zd_object_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1375 ztest_rll_lock(rll
, type
);
1379 ztest_object_unlock(ztest_ds_t
*zd
, uint64_t object
)
1381 rll_t
*rll
= &zd
->zd_object_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1383 ztest_rll_unlock(rll
);
1386 static ztest_zrl_t
*
1387 ztest_zrl_init(rl_t
*rl
, ztest_znode_t
*zp
)
1389 ztest_zrl_t
*zrl
= umem_alloc(sizeof (*zrl
), UMEM_NOFAIL
);
1391 zrl
->z_ztznode
= zp
;
1396 ztest_zrl_fini(ztest_zrl_t
*zrl
)
1398 umem_free(zrl
, sizeof (*zrl
));
1401 static ztest_zrl_t
*
1402 ztest_range_lock(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
,
1403 uint64_t size
, rl_type_t type
)
1405 ztest_znode_t
*zp
= ztest_znode_get(zd
, object
);
1406 rl_t
*rl
= zfs_range_lock(&zp
->z_range_lock
, offset
,
1408 return (ztest_zrl_init(rl
, zp
));
1412 ztest_range_unlock(ztest_ds_t
*zd
, ztest_zrl_t
*zrl
)
1414 zfs_range_unlock(zrl
->z_rl
);
1415 ztest_znode_put(zd
, zrl
->z_ztznode
);
1416 ztest_zrl_fini(zrl
);
1420 ztest_zd_init(ztest_ds_t
*zd
, ztest_shared_ds_t
*szd
, objset_t
*os
)
1423 zd
->zd_zilog
= dmu_objset_zil(os
);
1424 zd
->zd_shared
= szd
;
1425 dmu_objset_name(os
, zd
->zd_name
);
1428 if (zd
->zd_shared
!= NULL
)
1429 zd
->zd_shared
->zd_seq
= 0;
1431 VERIFY(rwlock_init(&zd
->zd_zilog_lock
, USYNC_THREAD
, NULL
) == 0);
1432 mutex_init(&zd
->zd_dirobj_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
1434 for (l
= 0; l
< ZTEST_OBJECT_LOCKS
; l
++)
1435 ztest_rll_init(&zd
->zd_object_lock
[l
]);
1437 for (l
= 0; l
< ZTEST_RANGE_LOCKS
; l
++)
1438 ztest_zll_init(&zd
->zd_range_lock
[l
]);
1442 ztest_zd_fini(ztest_ds_t
*zd
)
1446 mutex_destroy(&zd
->zd_dirobj_lock
);
1447 (void) rwlock_destroy(&zd
->zd_zilog_lock
);
1449 for (l
= 0; l
< ZTEST_OBJECT_LOCKS
; l
++)
1450 ztest_rll_destroy(&zd
->zd_object_lock
[l
]);
1452 for (l
= 0; l
< ZTEST_RANGE_LOCKS
; l
++)
1453 ztest_zll_destroy(&zd
->zd_range_lock
[l
]);
1456 #define TXG_MIGHTWAIT (ztest_random(10) == 0 ? TXG_NOWAIT : TXG_WAIT)
1459 ztest_tx_assign(dmu_tx_t
*tx
, uint64_t txg_how
, const char *tag
)
1465 * Attempt to assign tx to some transaction group.
1467 error
= dmu_tx_assign(tx
, txg_how
);
1469 if (error
== ERESTART
) {
1470 ASSERT(txg_how
== TXG_NOWAIT
);
1473 ASSERT3U(error
, ==, ENOSPC
);
1474 ztest_record_enospc(tag
);
1479 txg
= dmu_tx_get_txg(tx
);
1485 ztest_pattern_set(void *buf
, uint64_t size
, uint64_t value
)
1488 uint64_t *ip_end
= (uint64_t *)((uintptr_t)buf
+ (uintptr_t)size
);
1496 ztest_pattern_match(void *buf
, uint64_t size
, uint64_t value
)
1499 uint64_t *ip_end
= (uint64_t *)((uintptr_t)buf
+ (uintptr_t)size
);
1503 diff
|= (value
- *ip
++);
1510 ztest_bt_generate(ztest_block_tag_t
*bt
, objset_t
*os
, uint64_t object
,
1511 uint64_t dnodesize
, uint64_t offset
, uint64_t gen
, uint64_t txg
,
1514 bt
->bt_magic
= BT_MAGIC
;
1515 bt
->bt_objset
= dmu_objset_id(os
);
1516 bt
->bt_object
= object
;
1517 bt
->bt_dnodesize
= dnodesize
;
1518 bt
->bt_offset
= offset
;
1521 bt
->bt_crtxg
= crtxg
;
1525 ztest_bt_verify(ztest_block_tag_t
*bt
, objset_t
*os
, uint64_t object
,
1526 uint64_t dnodesize
, uint64_t offset
, uint64_t gen
, uint64_t txg
,
1529 ASSERT3U(bt
->bt_magic
, ==, BT_MAGIC
);
1530 ASSERT3U(bt
->bt_objset
, ==, dmu_objset_id(os
));
1531 ASSERT3U(bt
->bt_object
, ==, object
);
1532 ASSERT3U(bt
->bt_dnodesize
, ==, dnodesize
);
1533 ASSERT3U(bt
->bt_offset
, ==, offset
);
1534 ASSERT3U(bt
->bt_gen
, <=, gen
);
1535 ASSERT3U(bt
->bt_txg
, <=, txg
);
1536 ASSERT3U(bt
->bt_crtxg
, ==, crtxg
);
1539 static ztest_block_tag_t
*
1540 ztest_bt_bonus(dmu_buf_t
*db
)
1542 dmu_object_info_t doi
;
1543 ztest_block_tag_t
*bt
;
1545 dmu_object_info_from_db(db
, &doi
);
1546 ASSERT3U(doi
.doi_bonus_size
, <=, db
->db_size
);
1547 ASSERT3U(doi
.doi_bonus_size
, >=, sizeof (*bt
));
1548 bt
= (void *)((char *)db
->db_data
+ doi
.doi_bonus_size
- sizeof (*bt
));
1554 * Generate a token to fill up unused bonus buffer space. Try to make
1555 * it unique to the object, generation, and offset to verify that data
1556 * is not getting overwritten by data from other dnodes.
1558 #define ZTEST_BONUS_FILL_TOKEN(obj, ds, gen, offset) \
1559 (((ds) << 48) | ((gen) << 32) | ((obj) << 8) | (offset))
1562 * Fill up the unused bonus buffer region before the block tag with a
1563 * verifiable pattern. Filling the whole bonus area with non-zero data
1564 * helps ensure that all dnode traversal code properly skips the
1565 * interior regions of large dnodes.
1568 ztest_fill_unused_bonus(dmu_buf_t
*db
, void *end
, uint64_t obj
,
1569 objset_t
*os
, uint64_t gen
)
1573 ASSERT(IS_P2ALIGNED((char *)end
- (char *)db
->db_data
, 8));
1575 for (bonusp
= db
->db_data
; bonusp
< (uint64_t *)end
; bonusp
++) {
1576 uint64_t token
= ZTEST_BONUS_FILL_TOKEN(obj
, dmu_objset_id(os
),
1577 gen
, bonusp
- (uint64_t *)db
->db_data
);
1583 * Verify that the unused area of a bonus buffer is filled with the
1587 ztest_verify_unused_bonus(dmu_buf_t
*db
, void *end
, uint64_t obj
,
1588 objset_t
*os
, uint64_t gen
)
1592 for (bonusp
= db
->db_data
; bonusp
< (uint64_t *)end
; bonusp
++) {
1593 uint64_t token
= ZTEST_BONUS_FILL_TOKEN(obj
, dmu_objset_id(os
),
1594 gen
, bonusp
- (uint64_t *)db
->db_data
);
1595 VERIFY3U(*bonusp
, ==, token
);
1603 #define lrz_type lr_mode
1604 #define lrz_blocksize lr_uid
1605 #define lrz_ibshift lr_gid
1606 #define lrz_bonustype lr_rdev
1607 #define lrz_dnodesize lr_crtime[1]
1610 ztest_log_create(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_create_t
*lr
)
1612 char *name
= (void *)(lr
+ 1); /* name follows lr */
1613 size_t namesize
= strlen(name
) + 1;
1616 if (zil_replaying(zd
->zd_zilog
, tx
))
1619 itx
= zil_itx_create(TX_CREATE
, sizeof (*lr
) + namesize
);
1620 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1621 sizeof (*lr
) + namesize
- sizeof (lr_t
));
1623 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1627 ztest_log_remove(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_remove_t
*lr
, uint64_t object
)
1629 char *name
= (void *)(lr
+ 1); /* name follows lr */
1630 size_t namesize
= strlen(name
) + 1;
1633 if (zil_replaying(zd
->zd_zilog
, tx
))
1636 itx
= zil_itx_create(TX_REMOVE
, sizeof (*lr
) + namesize
);
1637 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1638 sizeof (*lr
) + namesize
- sizeof (lr_t
));
1640 itx
->itx_oid
= object
;
1641 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1645 ztest_log_write(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_write_t
*lr
)
1648 itx_wr_state_t write_state
= ztest_random(WR_NUM_STATES
);
1650 if (zil_replaying(zd
->zd_zilog
, tx
))
1653 if (lr
->lr_length
> ZIL_MAX_LOG_DATA
)
1654 write_state
= WR_INDIRECT
;
1656 itx
= zil_itx_create(TX_WRITE
,
1657 sizeof (*lr
) + (write_state
== WR_COPIED
? lr
->lr_length
: 0));
1659 if (write_state
== WR_COPIED
&&
1660 dmu_read(zd
->zd_os
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
,
1661 ((lr_write_t
*)&itx
->itx_lr
) + 1, DMU_READ_NO_PREFETCH
) != 0) {
1662 zil_itx_destroy(itx
);
1663 itx
= zil_itx_create(TX_WRITE
, sizeof (*lr
));
1664 write_state
= WR_NEED_COPY
;
1666 itx
->itx_private
= zd
;
1667 itx
->itx_wr_state
= write_state
;
1668 itx
->itx_sync
= (ztest_random(8) == 0);
1670 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1671 sizeof (*lr
) - sizeof (lr_t
));
1673 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1677 ztest_log_truncate(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_truncate_t
*lr
)
1681 if (zil_replaying(zd
->zd_zilog
, tx
))
1684 itx
= zil_itx_create(TX_TRUNCATE
, sizeof (*lr
));
1685 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1686 sizeof (*lr
) - sizeof (lr_t
));
1688 itx
->itx_sync
= B_FALSE
;
1689 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1693 ztest_log_setattr(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_setattr_t
*lr
)
1697 if (zil_replaying(zd
->zd_zilog
, tx
))
1700 itx
= zil_itx_create(TX_SETATTR
, sizeof (*lr
));
1701 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1702 sizeof (*lr
) - sizeof (lr_t
));
1704 itx
->itx_sync
= B_FALSE
;
1705 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1712 ztest_replay_create(ztest_ds_t
*zd
, lr_create_t
*lr
, boolean_t byteswap
)
1714 char *name
= (void *)(lr
+ 1); /* name follows lr */
1715 objset_t
*os
= zd
->zd_os
;
1716 ztest_block_tag_t
*bbt
;
1724 byteswap_uint64_array(lr
, sizeof (*lr
));
1726 ASSERT(lr
->lr_doid
== ZTEST_DIROBJ
);
1727 ASSERT(name
[0] != '\0');
1729 tx
= dmu_tx_create(os
);
1731 dmu_tx_hold_zap(tx
, lr
->lr_doid
, B_TRUE
, name
);
1733 if (lr
->lrz_type
== DMU_OT_ZAP_OTHER
) {
1734 dmu_tx_hold_zap(tx
, DMU_NEW_OBJECT
, B_TRUE
, NULL
);
1736 dmu_tx_hold_bonus(tx
, DMU_NEW_OBJECT
);
1739 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1743 ASSERT(dmu_objset_zil(os
)->zl_replay
== !!lr
->lr_foid
);
1744 bonuslen
= DN_BONUS_SIZE(lr
->lrz_dnodesize
);
1746 if (lr
->lrz_type
== DMU_OT_ZAP_OTHER
) {
1747 if (lr
->lr_foid
== 0) {
1748 lr
->lr_foid
= zap_create_dnsize(os
,
1749 lr
->lrz_type
, lr
->lrz_bonustype
,
1750 bonuslen
, lr
->lrz_dnodesize
, tx
);
1752 error
= zap_create_claim_dnsize(os
, lr
->lr_foid
,
1753 lr
->lrz_type
, lr
->lrz_bonustype
,
1754 bonuslen
, lr
->lrz_dnodesize
, tx
);
1757 if (lr
->lr_foid
== 0) {
1758 lr
->lr_foid
= dmu_object_alloc_dnsize(os
,
1759 lr
->lrz_type
, 0, lr
->lrz_bonustype
,
1760 bonuslen
, lr
->lrz_dnodesize
, tx
);
1762 error
= dmu_object_claim_dnsize(os
, lr
->lr_foid
,
1763 lr
->lrz_type
, 0, lr
->lrz_bonustype
,
1764 bonuslen
, lr
->lrz_dnodesize
, tx
);
1769 ASSERT3U(error
, ==, EEXIST
);
1770 ASSERT(zd
->zd_zilog
->zl_replay
);
1775 ASSERT(lr
->lr_foid
!= 0);
1777 if (lr
->lrz_type
!= DMU_OT_ZAP_OTHER
)
1778 VERIFY3U(0, ==, dmu_object_set_blocksize(os
, lr
->lr_foid
,
1779 lr
->lrz_blocksize
, lr
->lrz_ibshift
, tx
));
1781 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1782 bbt
= ztest_bt_bonus(db
);
1783 dmu_buf_will_dirty(db
, tx
);
1784 ztest_bt_generate(bbt
, os
, lr
->lr_foid
, lr
->lrz_dnodesize
, -1ULL,
1785 lr
->lr_gen
, txg
, txg
);
1786 ztest_fill_unused_bonus(db
, bbt
, lr
->lr_foid
, os
, lr
->lr_gen
);
1787 dmu_buf_rele(db
, FTAG
);
1789 VERIFY3U(0, ==, zap_add(os
, lr
->lr_doid
, name
, sizeof (uint64_t), 1,
1792 (void) ztest_log_create(zd
, tx
, lr
);
1800 ztest_replay_remove(ztest_ds_t
*zd
, lr_remove_t
*lr
, boolean_t byteswap
)
1802 char *name
= (void *)(lr
+ 1); /* name follows lr */
1803 objset_t
*os
= zd
->zd_os
;
1804 dmu_object_info_t doi
;
1806 uint64_t object
, txg
;
1809 byteswap_uint64_array(lr
, sizeof (*lr
));
1811 ASSERT(lr
->lr_doid
== ZTEST_DIROBJ
);
1812 ASSERT(name
[0] != '\0');
1815 zap_lookup(os
, lr
->lr_doid
, name
, sizeof (object
), 1, &object
));
1816 ASSERT(object
!= 0);
1818 ztest_object_lock(zd
, object
, RL_WRITER
);
1820 VERIFY3U(0, ==, dmu_object_info(os
, object
, &doi
));
1822 tx
= dmu_tx_create(os
);
1824 dmu_tx_hold_zap(tx
, lr
->lr_doid
, B_FALSE
, name
);
1825 dmu_tx_hold_free(tx
, object
, 0, DMU_OBJECT_END
);
1827 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1829 ztest_object_unlock(zd
, object
);
1833 if (doi
.doi_type
== DMU_OT_ZAP_OTHER
) {
1834 VERIFY3U(0, ==, zap_destroy(os
, object
, tx
));
1836 VERIFY3U(0, ==, dmu_object_free(os
, object
, tx
));
1839 VERIFY3U(0, ==, zap_remove(os
, lr
->lr_doid
, name
, tx
));
1841 (void) ztest_log_remove(zd
, tx
, lr
, object
);
1845 ztest_object_unlock(zd
, object
);
1851 ztest_replay_write(ztest_ds_t
*zd
, lr_write_t
*lr
, boolean_t byteswap
)
1853 objset_t
*os
= zd
->zd_os
;
1854 void *data
= lr
+ 1; /* data follows lr */
1855 uint64_t offset
, length
;
1856 ztest_block_tag_t
*bt
= data
;
1857 ztest_block_tag_t
*bbt
;
1858 uint64_t gen
, txg
, lrtxg
, crtxg
;
1859 dmu_object_info_t doi
;
1862 arc_buf_t
*abuf
= NULL
;
1866 byteswap_uint64_array(lr
, sizeof (*lr
));
1868 offset
= lr
->lr_offset
;
1869 length
= lr
->lr_length
;
1871 /* If it's a dmu_sync() block, write the whole block */
1872 if (lr
->lr_common
.lrc_reclen
== sizeof (lr_write_t
)) {
1873 uint64_t blocksize
= BP_GET_LSIZE(&lr
->lr_blkptr
);
1874 if (length
< blocksize
) {
1875 offset
-= offset
% blocksize
;
1880 if (bt
->bt_magic
== BSWAP_64(BT_MAGIC
))
1881 byteswap_uint64_array(bt
, sizeof (*bt
));
1883 if (bt
->bt_magic
!= BT_MAGIC
)
1886 ztest_object_lock(zd
, lr
->lr_foid
, RL_READER
);
1887 rl
= ztest_range_lock(zd
, lr
->lr_foid
, offset
, length
, RL_WRITER
);
1889 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1891 dmu_object_info_from_db(db
, &doi
);
1893 bbt
= ztest_bt_bonus(db
);
1894 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1896 crtxg
= bbt
->bt_crtxg
;
1897 lrtxg
= lr
->lr_common
.lrc_txg
;
1899 tx
= dmu_tx_create(os
);
1901 dmu_tx_hold_write(tx
, lr
->lr_foid
, offset
, length
);
1903 if (ztest_random(8) == 0 && length
== doi
.doi_data_block_size
&&
1904 P2PHASE(offset
, length
) == 0)
1905 abuf
= dmu_request_arcbuf(db
, length
);
1907 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1910 dmu_return_arcbuf(abuf
);
1911 dmu_buf_rele(db
, FTAG
);
1912 ztest_range_unlock(zd
, rl
);
1913 ztest_object_unlock(zd
, lr
->lr_foid
);
1919 * Usually, verify the old data before writing new data --
1920 * but not always, because we also want to verify correct
1921 * behavior when the data was not recently read into cache.
1923 ASSERT(offset
% doi
.doi_data_block_size
== 0);
1924 if (ztest_random(4) != 0) {
1925 int prefetch
= ztest_random(2) ?
1926 DMU_READ_PREFETCH
: DMU_READ_NO_PREFETCH
;
1927 ztest_block_tag_t rbt
;
1929 VERIFY(dmu_read(os
, lr
->lr_foid
, offset
,
1930 sizeof (rbt
), &rbt
, prefetch
) == 0);
1931 if (rbt
.bt_magic
== BT_MAGIC
) {
1932 ztest_bt_verify(&rbt
, os
, lr
->lr_foid
, 0,
1933 offset
, gen
, txg
, crtxg
);
1938 * Writes can appear to be newer than the bonus buffer because
1939 * the ztest_get_data() callback does a dmu_read() of the
1940 * open-context data, which may be different than the data
1941 * as it was when the write was generated.
1943 if (zd
->zd_zilog
->zl_replay
) {
1944 ztest_bt_verify(bt
, os
, lr
->lr_foid
, 0, offset
,
1945 MAX(gen
, bt
->bt_gen
), MAX(txg
, lrtxg
),
1950 * Set the bt's gen/txg to the bonus buffer's gen/txg
1951 * so that all of the usual ASSERTs will work.
1953 ztest_bt_generate(bt
, os
, lr
->lr_foid
, 0, offset
, gen
, txg
,
1958 dmu_write(os
, lr
->lr_foid
, offset
, length
, data
, tx
);
1960 bcopy(data
, abuf
->b_data
, length
);
1961 dmu_assign_arcbuf(db
, offset
, abuf
, tx
);
1964 (void) ztest_log_write(zd
, tx
, lr
);
1966 dmu_buf_rele(db
, FTAG
);
1970 ztest_range_unlock(zd
, rl
);
1971 ztest_object_unlock(zd
, lr
->lr_foid
);
1977 ztest_replay_truncate(ztest_ds_t
*zd
, lr_truncate_t
*lr
, boolean_t byteswap
)
1979 objset_t
*os
= zd
->zd_os
;
1985 byteswap_uint64_array(lr
, sizeof (*lr
));
1987 ztest_object_lock(zd
, lr
->lr_foid
, RL_READER
);
1988 rl
= ztest_range_lock(zd
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
,
1991 tx
= dmu_tx_create(os
);
1993 dmu_tx_hold_free(tx
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
);
1995 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1997 ztest_range_unlock(zd
, rl
);
1998 ztest_object_unlock(zd
, lr
->lr_foid
);
2002 VERIFY(dmu_free_range(os
, lr
->lr_foid
, lr
->lr_offset
,
2003 lr
->lr_length
, tx
) == 0);
2005 (void) ztest_log_truncate(zd
, tx
, lr
);
2009 ztest_range_unlock(zd
, rl
);
2010 ztest_object_unlock(zd
, lr
->lr_foid
);
2016 ztest_replay_setattr(ztest_ds_t
*zd
, lr_setattr_t
*lr
, boolean_t byteswap
)
2018 objset_t
*os
= zd
->zd_os
;
2021 ztest_block_tag_t
*bbt
;
2022 uint64_t txg
, lrtxg
, crtxg
, dnodesize
;
2025 byteswap_uint64_array(lr
, sizeof (*lr
));
2027 ztest_object_lock(zd
, lr
->lr_foid
, RL_WRITER
);
2029 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
2031 tx
= dmu_tx_create(os
);
2032 dmu_tx_hold_bonus(tx
, lr
->lr_foid
);
2034 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
2036 dmu_buf_rele(db
, FTAG
);
2037 ztest_object_unlock(zd
, lr
->lr_foid
);
2041 bbt
= ztest_bt_bonus(db
);
2042 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
2043 crtxg
= bbt
->bt_crtxg
;
2044 lrtxg
= lr
->lr_common
.lrc_txg
;
2045 dnodesize
= bbt
->bt_dnodesize
;
2047 if (zd
->zd_zilog
->zl_replay
) {
2048 ASSERT(lr
->lr_size
!= 0);
2049 ASSERT(lr
->lr_mode
!= 0);
2053 * Randomly change the size and increment the generation.
2055 lr
->lr_size
= (ztest_random(db
->db_size
/ sizeof (*bbt
)) + 1) *
2057 lr
->lr_mode
= bbt
->bt_gen
+ 1;
2062 * Verify that the current bonus buffer is not newer than our txg.
2064 ztest_bt_verify(bbt
, os
, lr
->lr_foid
, dnodesize
, -1ULL, lr
->lr_mode
,
2065 MAX(txg
, lrtxg
), crtxg
);
2067 dmu_buf_will_dirty(db
, tx
);
2069 ASSERT3U(lr
->lr_size
, >=, sizeof (*bbt
));
2070 ASSERT3U(lr
->lr_size
, <=, db
->db_size
);
2071 VERIFY0(dmu_set_bonus(db
, lr
->lr_size
, tx
));
2072 bbt
= ztest_bt_bonus(db
);
2074 ztest_bt_generate(bbt
, os
, lr
->lr_foid
, dnodesize
, -1ULL, lr
->lr_mode
,
2076 ztest_fill_unused_bonus(db
, bbt
, lr
->lr_foid
, os
, bbt
->bt_gen
);
2077 dmu_buf_rele(db
, FTAG
);
2079 (void) ztest_log_setattr(zd
, tx
, lr
);
2083 ztest_object_unlock(zd
, lr
->lr_foid
);
2088 zil_replay_func_t ztest_replay_vector
[TX_MAX_TYPE
] = {
2089 NULL
, /* 0 no such transaction type */
2090 (zil_replay_func_t
)ztest_replay_create
, /* TX_CREATE */
2091 NULL
, /* TX_MKDIR */
2092 NULL
, /* TX_MKXATTR */
2093 NULL
, /* TX_SYMLINK */
2094 (zil_replay_func_t
)ztest_replay_remove
, /* TX_REMOVE */
2095 NULL
, /* TX_RMDIR */
2097 NULL
, /* TX_RENAME */
2098 (zil_replay_func_t
)ztest_replay_write
, /* TX_WRITE */
2099 (zil_replay_func_t
)ztest_replay_truncate
, /* TX_TRUNCATE */
2100 (zil_replay_func_t
)ztest_replay_setattr
, /* TX_SETATTR */
2102 NULL
, /* TX_CREATE_ACL */
2103 NULL
, /* TX_CREATE_ATTR */
2104 NULL
, /* TX_CREATE_ACL_ATTR */
2105 NULL
, /* TX_MKDIR_ACL */
2106 NULL
, /* TX_MKDIR_ATTR */
2107 NULL
, /* TX_MKDIR_ACL_ATTR */
2108 NULL
, /* TX_WRITE2 */
2112 * ZIL get_data callbacks
2114 typedef struct ztest_zgd_private
{
2118 } ztest_zgd_private_t
;
2121 ztest_get_done(zgd_t
*zgd
, int error
)
2123 ztest_zgd_private_t
*zzp
= zgd
->zgd_private
;
2124 ztest_ds_t
*zd
= zzp
->z_zd
;
2125 uint64_t object
= zzp
->z_object
;
2128 dmu_buf_rele(zgd
->zgd_db
, zgd
);
2130 ztest_range_unlock(zd
, zzp
->z_rl
);
2131 ztest_object_unlock(zd
, object
);
2133 if (error
== 0 && zgd
->zgd_bp
)
2134 zil_add_block(zgd
->zgd_zilog
, zgd
->zgd_bp
);
2136 umem_free(zgd
, sizeof (*zgd
));
2137 umem_free(zzp
, sizeof (*zzp
));
2141 ztest_get_data(void *arg
, lr_write_t
*lr
, char *buf
, zio_t
*zio
)
2143 ztest_ds_t
*zd
= arg
;
2144 objset_t
*os
= zd
->zd_os
;
2145 uint64_t object
= lr
->lr_foid
;
2146 uint64_t offset
= lr
->lr_offset
;
2147 uint64_t size
= lr
->lr_length
;
2148 uint64_t txg
= lr
->lr_common
.lrc_txg
;
2150 dmu_object_info_t doi
;
2154 ztest_zgd_private_t
*zgd_private
;
2156 ztest_object_lock(zd
, object
, RL_READER
);
2157 error
= dmu_bonus_hold(os
, object
, FTAG
, &db
);
2159 ztest_object_unlock(zd
, object
);
2163 crtxg
= ztest_bt_bonus(db
)->bt_crtxg
;
2165 if (crtxg
== 0 || crtxg
> txg
) {
2166 dmu_buf_rele(db
, FTAG
);
2167 ztest_object_unlock(zd
, object
);
2171 dmu_object_info_from_db(db
, &doi
);
2172 dmu_buf_rele(db
, FTAG
);
2175 zgd
= umem_zalloc(sizeof (*zgd
), UMEM_NOFAIL
);
2176 zgd
->zgd_zilog
= zd
->zd_zilog
;
2177 zgd_private
= umem_zalloc(sizeof (ztest_zgd_private_t
), UMEM_NOFAIL
);
2178 zgd_private
->z_zd
= zd
;
2179 zgd_private
->z_object
= object
;
2180 zgd
->zgd_private
= zgd_private
;
2182 if (buf
!= NULL
) { /* immediate write */
2183 zgd_private
->z_rl
= ztest_range_lock(zd
, object
, offset
, size
,
2185 zgd
->zgd_rl
= zgd_private
->z_rl
->z_rl
;
2187 error
= dmu_read(os
, object
, offset
, size
, buf
,
2188 DMU_READ_NO_PREFETCH
);
2191 size
= doi
.doi_data_block_size
;
2193 offset
= P2ALIGN(offset
, size
);
2195 ASSERT(offset
< size
);
2199 zgd_private
->z_rl
= ztest_range_lock(zd
, object
, offset
, size
,
2201 zgd
->zgd_rl
= zgd_private
->z_rl
->z_rl
;
2203 error
= dmu_buf_hold(os
, object
, offset
, zgd
, &db
,
2204 DMU_READ_NO_PREFETCH
);
2207 blkptr_t
*bp
= &lr
->lr_blkptr
;
2212 ASSERT(db
->db_offset
== offset
);
2213 ASSERT(db
->db_size
== size
);
2215 error
= dmu_sync(zio
, lr
->lr_common
.lrc_txg
,
2216 ztest_get_done
, zgd
);
2223 ztest_get_done(zgd
, error
);
2229 ztest_lr_alloc(size_t lrsize
, char *name
)
2232 size_t namesize
= name
? strlen(name
) + 1 : 0;
2234 lr
= umem_zalloc(lrsize
+ namesize
, UMEM_NOFAIL
);
2237 bcopy(name
, lr
+ lrsize
, namesize
);
2243 ztest_lr_free(void *lr
, size_t lrsize
, char *name
)
2245 size_t namesize
= name
? strlen(name
) + 1 : 0;
2247 umem_free(lr
, lrsize
+ namesize
);
2251 * Lookup a bunch of objects. Returns the number of objects not found.
2254 ztest_lookup(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
2260 ASSERT(MUTEX_HELD(&zd
->zd_dirobj_lock
));
2262 for (i
= 0; i
< count
; i
++, od
++) {
2264 error
= zap_lookup(zd
->zd_os
, od
->od_dir
, od
->od_name
,
2265 sizeof (uint64_t), 1, &od
->od_object
);
2267 ASSERT(error
== ENOENT
);
2268 ASSERT(od
->od_object
== 0);
2272 ztest_block_tag_t
*bbt
;
2273 dmu_object_info_t doi
;
2275 ASSERT(od
->od_object
!= 0);
2276 ASSERT(missing
== 0); /* there should be no gaps */
2278 ztest_object_lock(zd
, od
->od_object
, RL_READER
);
2279 VERIFY3U(0, ==, dmu_bonus_hold(zd
->zd_os
,
2280 od
->od_object
, FTAG
, &db
));
2281 dmu_object_info_from_db(db
, &doi
);
2282 bbt
= ztest_bt_bonus(db
);
2283 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
2284 od
->od_type
= doi
.doi_type
;
2285 od
->od_blocksize
= doi
.doi_data_block_size
;
2286 od
->od_gen
= bbt
->bt_gen
;
2287 dmu_buf_rele(db
, FTAG
);
2288 ztest_object_unlock(zd
, od
->od_object
);
2296 ztest_create(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
2301 ASSERT(MUTEX_HELD(&zd
->zd_dirobj_lock
));
2303 for (i
= 0; i
< count
; i
++, od
++) {
2310 lr_create_t
*lr
= ztest_lr_alloc(sizeof (*lr
), od
->od_name
);
2312 lr
->lr_doid
= od
->od_dir
;
2313 lr
->lr_foid
= 0; /* 0 to allocate, > 0 to claim */
2314 lr
->lrz_type
= od
->od_crtype
;
2315 lr
->lrz_blocksize
= od
->od_crblocksize
;
2316 lr
->lrz_ibshift
= ztest_random_ibshift();
2317 lr
->lrz_bonustype
= DMU_OT_UINT64_OTHER
;
2318 lr
->lrz_dnodesize
= od
->od_crdnodesize
;
2319 lr
->lr_gen
= od
->od_crgen
;
2320 lr
->lr_crtime
[0] = time(NULL
);
2322 if (ztest_replay_create(zd
, lr
, B_FALSE
) != 0) {
2323 ASSERT(missing
== 0);
2327 od
->od_object
= lr
->lr_foid
;
2328 od
->od_type
= od
->od_crtype
;
2329 od
->od_blocksize
= od
->od_crblocksize
;
2330 od
->od_gen
= od
->od_crgen
;
2331 ASSERT(od
->od_object
!= 0);
2334 ztest_lr_free(lr
, sizeof (*lr
), od
->od_name
);
2341 ztest_remove(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
2347 ASSERT(MUTEX_HELD(&zd
->zd_dirobj_lock
));
2351 for (i
= count
- 1; i
>= 0; i
--, od
--) {
2358 * No object was found.
2360 if (od
->od_object
== 0)
2363 lr_remove_t
*lr
= ztest_lr_alloc(sizeof (*lr
), od
->od_name
);
2365 lr
->lr_doid
= od
->od_dir
;
2367 if ((error
= ztest_replay_remove(zd
, lr
, B_FALSE
)) != 0) {
2368 ASSERT3U(error
, ==, ENOSPC
);
2373 ztest_lr_free(lr
, sizeof (*lr
), od
->od_name
);
2380 ztest_write(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
,
2386 lr
= ztest_lr_alloc(sizeof (*lr
) + size
, NULL
);
2388 lr
->lr_foid
= object
;
2389 lr
->lr_offset
= offset
;
2390 lr
->lr_length
= size
;
2392 BP_ZERO(&lr
->lr_blkptr
);
2394 bcopy(data
, lr
+ 1, size
);
2396 error
= ztest_replay_write(zd
, lr
, B_FALSE
);
2398 ztest_lr_free(lr
, sizeof (*lr
) + size
, NULL
);
2404 ztest_truncate(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
)
2409 lr
= ztest_lr_alloc(sizeof (*lr
), NULL
);
2411 lr
->lr_foid
= object
;
2412 lr
->lr_offset
= offset
;
2413 lr
->lr_length
= size
;
2415 error
= ztest_replay_truncate(zd
, lr
, B_FALSE
);
2417 ztest_lr_free(lr
, sizeof (*lr
), NULL
);
2423 ztest_setattr(ztest_ds_t
*zd
, uint64_t object
)
2428 lr
= ztest_lr_alloc(sizeof (*lr
), NULL
);
2430 lr
->lr_foid
= object
;
2434 error
= ztest_replay_setattr(zd
, lr
, B_FALSE
);
2436 ztest_lr_free(lr
, sizeof (*lr
), NULL
);
2442 ztest_prealloc(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
)
2444 objset_t
*os
= zd
->zd_os
;
2449 txg_wait_synced(dmu_objset_pool(os
), 0);
2451 ztest_object_lock(zd
, object
, RL_READER
);
2452 rl
= ztest_range_lock(zd
, object
, offset
, size
, RL_WRITER
);
2454 tx
= dmu_tx_create(os
);
2456 dmu_tx_hold_write(tx
, object
, offset
, size
);
2458 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
2461 dmu_prealloc(os
, object
, offset
, size
, tx
);
2463 txg_wait_synced(dmu_objset_pool(os
), txg
);
2465 (void) dmu_free_long_range(os
, object
, offset
, size
);
2468 ztest_range_unlock(zd
, rl
);
2469 ztest_object_unlock(zd
, object
);
2473 ztest_io(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
)
2476 ztest_block_tag_t wbt
;
2477 dmu_object_info_t doi
;
2478 enum ztest_io_type io_type
;
2482 VERIFY(dmu_object_info(zd
->zd_os
, object
, &doi
) == 0);
2483 blocksize
= doi
.doi_data_block_size
;
2484 data
= umem_alloc(blocksize
, UMEM_NOFAIL
);
2487 * Pick an i/o type at random, biased toward writing block tags.
2489 io_type
= ztest_random(ZTEST_IO_TYPES
);
2490 if (ztest_random(2) == 0)
2491 io_type
= ZTEST_IO_WRITE_TAG
;
2493 (void) rw_rdlock(&zd
->zd_zilog_lock
);
2497 case ZTEST_IO_WRITE_TAG
:
2498 ztest_bt_generate(&wbt
, zd
->zd_os
, object
, doi
.doi_dnodesize
,
2500 (void) ztest_write(zd
, object
, offset
, sizeof (wbt
), &wbt
);
2503 case ZTEST_IO_WRITE_PATTERN
:
2504 (void) memset(data
, 'a' + (object
+ offset
) % 5, blocksize
);
2505 if (ztest_random(2) == 0) {
2507 * Induce fletcher2 collisions to ensure that
2508 * zio_ddt_collision() detects and resolves them
2509 * when using fletcher2-verify for deduplication.
2511 ((uint64_t *)data
)[0] ^= 1ULL << 63;
2512 ((uint64_t *)data
)[4] ^= 1ULL << 63;
2514 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2517 case ZTEST_IO_WRITE_ZEROES
:
2518 bzero(data
, blocksize
);
2519 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2522 case ZTEST_IO_TRUNCATE
:
2523 (void) ztest_truncate(zd
, object
, offset
, blocksize
);
2526 case ZTEST_IO_SETATTR
:
2527 (void) ztest_setattr(zd
, object
);
2532 case ZTEST_IO_REWRITE
:
2533 (void) rw_rdlock(&ztest_name_lock
);
2534 err
= ztest_dsl_prop_set_uint64(zd
->zd_name
,
2535 ZFS_PROP_CHECKSUM
, spa_dedup_checksum(ztest_spa
),
2537 VERIFY(err
== 0 || err
== ENOSPC
);
2538 err
= ztest_dsl_prop_set_uint64(zd
->zd_name
,
2539 ZFS_PROP_COMPRESSION
,
2540 ztest_random_dsl_prop(ZFS_PROP_COMPRESSION
),
2542 VERIFY(err
== 0 || err
== ENOSPC
);
2543 (void) rw_unlock(&ztest_name_lock
);
2545 VERIFY0(dmu_read(zd
->zd_os
, object
, offset
, blocksize
, data
,
2546 DMU_READ_NO_PREFETCH
));
2548 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2552 (void) rw_unlock(&zd
->zd_zilog_lock
);
2554 umem_free(data
, blocksize
);
2558 * Initialize an object description template.
2561 ztest_od_init(ztest_od_t
*od
, uint64_t id
, char *tag
, uint64_t index
,
2562 dmu_object_type_t type
, uint64_t blocksize
, uint64_t dnodesize
,
2565 od
->od_dir
= ZTEST_DIROBJ
;
2568 od
->od_crtype
= type
;
2569 od
->od_crblocksize
= blocksize
? blocksize
: ztest_random_blocksize();
2570 od
->od_crdnodesize
= dnodesize
? dnodesize
: ztest_random_dnodesize();
2573 od
->od_type
= DMU_OT_NONE
;
2574 od
->od_blocksize
= 0;
2577 (void) snprintf(od
->od_name
, sizeof (od
->od_name
), "%s(%lld)[%llu]",
2578 tag
, (longlong_t
)id
, (u_longlong_t
)index
);
2582 * Lookup or create the objects for a test using the od template.
2583 * If the objects do not all exist, or if 'remove' is specified,
2584 * remove any existing objects and create new ones. Otherwise,
2585 * use the existing objects.
2588 ztest_object_init(ztest_ds_t
*zd
, ztest_od_t
*od
, size_t size
, boolean_t remove
)
2590 int count
= size
/ sizeof (*od
);
2593 mutex_enter(&zd
->zd_dirobj_lock
);
2594 if ((ztest_lookup(zd
, od
, count
) != 0 || remove
) &&
2595 (ztest_remove(zd
, od
, count
) != 0 ||
2596 ztest_create(zd
, od
, count
) != 0))
2599 mutex_exit(&zd
->zd_dirobj_lock
);
2606 ztest_zil_commit(ztest_ds_t
*zd
, uint64_t id
)
2608 zilog_t
*zilog
= zd
->zd_zilog
;
2610 (void) rw_rdlock(&zd
->zd_zilog_lock
);
2612 zil_commit(zilog
, ztest_random(ZTEST_OBJECTS
));
2615 * Remember the committed values in zd, which is in parent/child
2616 * shared memory. If we die, the next iteration of ztest_run()
2617 * will verify that the log really does contain this record.
2619 mutex_enter(&zilog
->zl_lock
);
2620 ASSERT(zd
->zd_shared
!= NULL
);
2621 ASSERT3U(zd
->zd_shared
->zd_seq
, <=, zilog
->zl_commit_lr_seq
);
2622 zd
->zd_shared
->zd_seq
= zilog
->zl_commit_lr_seq
;
2623 mutex_exit(&zilog
->zl_lock
);
2625 (void) rw_unlock(&zd
->zd_zilog_lock
);
2629 * This function is designed to simulate the operations that occur during a
2630 * mount/unmount operation. We hold the dataset across these operations in an
2631 * attempt to expose any implicit assumptions about ZIL management.
2635 ztest_zil_remount(ztest_ds_t
*zd
, uint64_t id
)
2637 objset_t
*os
= zd
->zd_os
;
2640 * We grab the zd_dirobj_lock to ensure that no other thread is
2641 * updating the zil (i.e. adding in-memory log records) and the
2642 * zd_zilog_lock to block any I/O.
2644 mutex_enter(&zd
->zd_dirobj_lock
);
2645 (void) rw_wrlock(&zd
->zd_zilog_lock
);
2647 /* zfsvfs_teardown() */
2648 zil_close(zd
->zd_zilog
);
2650 /* zfsvfs_setup() */
2651 VERIFY(zil_open(os
, ztest_get_data
) == zd
->zd_zilog
);
2652 zil_replay(os
, zd
, ztest_replay_vector
);
2654 (void) rw_unlock(&zd
->zd_zilog_lock
);
2655 mutex_exit(&zd
->zd_dirobj_lock
);
2659 * Verify that we can't destroy an active pool, create an existing pool,
2660 * or create a pool with a bad vdev spec.
2664 ztest_spa_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
2666 ztest_shared_opts_t
*zo
= &ztest_opts
;
2670 if (zo
->zo_mmp_test
)
2674 * Attempt to create using a bad file.
2676 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 0, 1);
2677 VERIFY3U(ENOENT
, ==,
2678 spa_create("ztest_bad_file", nvroot
, NULL
, NULL
, NULL
));
2679 nvlist_free(nvroot
);
2682 * Attempt to create using a bad mirror.
2684 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 2, 1);
2685 VERIFY3U(ENOENT
, ==,
2686 spa_create("ztest_bad_mirror", nvroot
, NULL
, NULL
, NULL
));
2687 nvlist_free(nvroot
);
2690 * Attempt to create an existing pool. It shouldn't matter
2691 * what's in the nvroot; we should fail with EEXIST.
2693 (void) rw_rdlock(&ztest_name_lock
);
2694 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 0, 1);
2695 VERIFY3U(EEXIST
, ==,
2696 spa_create(zo
->zo_pool
, nvroot
, NULL
, NULL
, NULL
));
2697 nvlist_free(nvroot
);
2698 VERIFY3U(0, ==, spa_open(zo
->zo_pool
, &spa
, FTAG
));
2699 VERIFY3U(EBUSY
, ==, spa_destroy(zo
->zo_pool
));
2700 spa_close(spa
, FTAG
);
2702 (void) rw_unlock(&ztest_name_lock
);
2706 * Start and then stop the MMP threads to ensure the startup and shutdown code
2707 * works properly. Actual protection and property-related code tested via ZTS.
2711 ztest_mmp_enable_disable(ztest_ds_t
*zd
, uint64_t id
)
2713 ztest_shared_opts_t
*zo
= &ztest_opts
;
2714 spa_t
*spa
= ztest_spa
;
2716 if (zo
->zo_mmp_test
)
2719 spa_config_enter(spa
, SCL_CONFIG
, FTAG
, RW_READER
);
2720 mutex_enter(&spa
->spa_props_lock
);
2722 if (!spa_multihost(spa
)) {
2723 spa
->spa_multihost
= B_TRUE
;
2724 mmp_thread_start(spa
);
2727 mutex_exit(&spa
->spa_props_lock
);
2728 spa_config_exit(spa
, SCL_CONFIG
, FTAG
);
2730 txg_wait_synced(spa_get_dsl(spa
), 0);
2731 mmp_signal_all_threads();
2732 txg_wait_synced(spa_get_dsl(spa
), 0);
2734 spa_config_enter(spa
, SCL_CONFIG
, FTAG
, RW_READER
);
2735 mutex_enter(&spa
->spa_props_lock
);
2737 if (spa_multihost(spa
)) {
2738 mmp_thread_stop(spa
);
2739 spa
->spa_multihost
= B_FALSE
;
2742 mutex_exit(&spa
->spa_props_lock
);
2743 spa_config_exit(spa
, SCL_CONFIG
, FTAG
);
2748 ztest_spa_upgrade(ztest_ds_t
*zd
, uint64_t id
)
2751 uint64_t initial_version
= SPA_VERSION_INITIAL
;
2752 uint64_t version
, newversion
;
2753 nvlist_t
*nvroot
, *props
;
2756 if (ztest_opts
.zo_mmp_test
)
2759 mutex_enter(&ztest_vdev_lock
);
2760 name
= kmem_asprintf("%s_upgrade", ztest_opts
.zo_pool
);
2763 * Clean up from previous runs.
2765 (void) spa_destroy(name
);
2767 nvroot
= make_vdev_root(NULL
, NULL
, name
, ztest_opts
.zo_vdev_size
, 0,
2768 0, ztest_opts
.zo_raidz
, ztest_opts
.zo_mirrors
, 1);
2771 * If we're configuring a RAIDZ device then make sure that the
2772 * the initial version is capable of supporting that feature.
2774 switch (ztest_opts
.zo_raidz_parity
) {
2777 initial_version
= SPA_VERSION_INITIAL
;
2780 initial_version
= SPA_VERSION_RAIDZ2
;
2783 initial_version
= SPA_VERSION_RAIDZ3
;
2788 * Create a pool with a spa version that can be upgraded. Pick
2789 * a value between initial_version and SPA_VERSION_BEFORE_FEATURES.
2792 version
= ztest_random_spa_version(initial_version
);
2793 } while (version
> SPA_VERSION_BEFORE_FEATURES
);
2795 props
= fnvlist_alloc();
2796 fnvlist_add_uint64(props
,
2797 zpool_prop_to_name(ZPOOL_PROP_VERSION
), version
);
2798 VERIFY3S(spa_create(name
, nvroot
, props
, NULL
, NULL
), ==, 0);
2799 fnvlist_free(nvroot
);
2800 fnvlist_free(props
);
2802 VERIFY3S(spa_open(name
, &spa
, FTAG
), ==, 0);
2803 VERIFY3U(spa_version(spa
), ==, version
);
2804 newversion
= ztest_random_spa_version(version
+ 1);
2806 if (ztest_opts
.zo_verbose
>= 4) {
2807 (void) printf("upgrading spa version from %llu to %llu\n",
2808 (u_longlong_t
)version
, (u_longlong_t
)newversion
);
2811 spa_upgrade(spa
, newversion
);
2812 VERIFY3U(spa_version(spa
), >, version
);
2813 VERIFY3U(spa_version(spa
), ==, fnvlist_lookup_uint64(spa
->spa_config
,
2814 zpool_prop_to_name(ZPOOL_PROP_VERSION
)));
2815 spa_close(spa
, FTAG
);
2818 mutex_exit(&ztest_vdev_lock
);
2822 vdev_lookup_by_path(vdev_t
*vd
, const char *path
)
2827 if (vd
->vdev_path
!= NULL
&& strcmp(path
, vd
->vdev_path
) == 0)
2830 for (c
= 0; c
< vd
->vdev_children
; c
++)
2831 if ((mvd
= vdev_lookup_by_path(vd
->vdev_child
[c
], path
)) !=
2839 * Find the first available hole which can be used as a top-level.
2842 find_vdev_hole(spa_t
*spa
)
2844 vdev_t
*rvd
= spa
->spa_root_vdev
;
2847 ASSERT(spa_config_held(spa
, SCL_VDEV
, RW_READER
) == SCL_VDEV
);
2849 for (c
= 0; c
< rvd
->vdev_children
; c
++) {
2850 vdev_t
*cvd
= rvd
->vdev_child
[c
];
2852 if (cvd
->vdev_ishole
)
2859 * Verify that vdev_add() works as expected.
2863 ztest_vdev_add_remove(ztest_ds_t
*zd
, uint64_t id
)
2865 ztest_shared_t
*zs
= ztest_shared
;
2866 spa_t
*spa
= ztest_spa
;
2872 if (ztest_opts
.zo_mmp_test
)
2875 mutex_enter(&ztest_vdev_lock
);
2876 leaves
= MAX(zs
->zs_mirrors
+ zs
->zs_splits
, 1) * ztest_opts
.zo_raidz
;
2878 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2880 ztest_shared
->zs_vdev_next_leaf
= find_vdev_hole(spa
) * leaves
;
2883 * If we have slogs then remove them 1/4 of the time.
2885 if (spa_has_slogs(spa
) && ztest_random(4) == 0) {
2887 * Grab the guid from the head of the log class rotor.
2889 guid
= spa_log_class(spa
)->mc_rotor
->mg_vd
->vdev_guid
;
2891 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2894 * We have to grab the zs_name_lock as writer to
2895 * prevent a race between removing a slog (dmu_objset_find)
2896 * and destroying a dataset. Removing the slog will
2897 * grab a reference on the dataset which may cause
2898 * dsl_destroy_head() to fail with EBUSY thus
2899 * leaving the dataset in an inconsistent state.
2901 rw_wrlock(&ztest_name_lock
);
2902 error
= spa_vdev_remove(spa
, guid
, B_FALSE
);
2903 rw_unlock(&ztest_name_lock
);
2905 if (error
&& error
!= EEXIST
)
2906 fatal(0, "spa_vdev_remove() = %d", error
);
2908 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2911 * Make 1/4 of the devices be log devices.
2913 nvroot
= make_vdev_root(NULL
, NULL
, NULL
,
2914 ztest_opts
.zo_vdev_size
, 0,
2915 ztest_random(4) == 0, ztest_opts
.zo_raidz
,
2918 error
= spa_vdev_add(spa
, nvroot
);
2919 nvlist_free(nvroot
);
2921 if (error
== ENOSPC
)
2922 ztest_record_enospc("spa_vdev_add");
2923 else if (error
!= 0)
2924 fatal(0, "spa_vdev_add() = %d", error
);
2927 mutex_exit(&ztest_vdev_lock
);
2931 * Verify that adding/removing aux devices (l2arc, hot spare) works as expected.
2935 ztest_vdev_aux_add_remove(ztest_ds_t
*zd
, uint64_t id
)
2937 ztest_shared_t
*zs
= ztest_shared
;
2938 spa_t
*spa
= ztest_spa
;
2939 vdev_t
*rvd
= spa
->spa_root_vdev
;
2940 spa_aux_vdev_t
*sav
;
2946 if (ztest_opts
.zo_mmp_test
)
2949 path
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
2951 if (ztest_random(2) == 0) {
2952 sav
= &spa
->spa_spares
;
2953 aux
= ZPOOL_CONFIG_SPARES
;
2955 sav
= &spa
->spa_l2cache
;
2956 aux
= ZPOOL_CONFIG_L2CACHE
;
2959 mutex_enter(&ztest_vdev_lock
);
2961 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2963 if (sav
->sav_count
!= 0 && ztest_random(4) == 0) {
2965 * Pick a random device to remove.
2967 guid
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)]->vdev_guid
;
2970 * Find an unused device we can add.
2972 zs
->zs_vdev_aux
= 0;
2975 (void) snprintf(path
, MAXPATHLEN
, ztest_aux_template
,
2976 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
, aux
,
2978 for (c
= 0; c
< sav
->sav_count
; c
++)
2979 if (strcmp(sav
->sav_vdevs
[c
]->vdev_path
,
2982 if (c
== sav
->sav_count
&&
2983 vdev_lookup_by_path(rvd
, path
) == NULL
)
2989 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2995 nvlist_t
*nvroot
= make_vdev_root(NULL
, aux
, NULL
,
2996 (ztest_opts
.zo_vdev_size
* 5) / 4, 0, 0, 0, 0, 1);
2997 error
= spa_vdev_add(spa
, nvroot
);
2999 fatal(0, "spa_vdev_add(%p) = %d", nvroot
, error
);
3000 nvlist_free(nvroot
);
3003 * Remove an existing device. Sometimes, dirty its
3004 * vdev state first to make sure we handle removal
3005 * of devices that have pending state changes.
3007 if (ztest_random(2) == 0)
3008 (void) vdev_online(spa
, guid
, 0, NULL
);
3010 error
= spa_vdev_remove(spa
, guid
, B_FALSE
);
3011 if (error
!= 0 && error
!= EBUSY
)
3012 fatal(0, "spa_vdev_remove(%llu) = %d", guid
, error
);
3015 mutex_exit(&ztest_vdev_lock
);
3017 umem_free(path
, MAXPATHLEN
);
3021 * split a pool if it has mirror tlvdevs
3025 ztest_split_pool(ztest_ds_t
*zd
, uint64_t id
)
3027 ztest_shared_t
*zs
= ztest_shared
;
3028 spa_t
*spa
= ztest_spa
;
3029 vdev_t
*rvd
= spa
->spa_root_vdev
;
3030 nvlist_t
*tree
, **child
, *config
, *split
, **schild
;
3031 uint_t c
, children
, schildren
= 0, lastlogid
= 0;
3034 if (ztest_opts
.zo_mmp_test
)
3037 mutex_enter(&ztest_vdev_lock
);
3039 /* ensure we have a useable config; mirrors of raidz aren't supported */
3040 if (zs
->zs_mirrors
< 3 || ztest_opts
.zo_raidz
> 1) {
3041 mutex_exit(&ztest_vdev_lock
);
3045 /* clean up the old pool, if any */
3046 (void) spa_destroy("splitp");
3048 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
3050 /* generate a config from the existing config */
3051 mutex_enter(&spa
->spa_props_lock
);
3052 VERIFY(nvlist_lookup_nvlist(spa
->spa_config
, ZPOOL_CONFIG_VDEV_TREE
,
3054 mutex_exit(&spa
->spa_props_lock
);
3056 VERIFY(nvlist_lookup_nvlist_array(tree
, ZPOOL_CONFIG_CHILDREN
, &child
,
3059 schild
= malloc(rvd
->vdev_children
* sizeof (nvlist_t
*));
3060 for (c
= 0; c
< children
; c
++) {
3061 vdev_t
*tvd
= rvd
->vdev_child
[c
];
3065 if (tvd
->vdev_islog
|| tvd
->vdev_ops
== &vdev_hole_ops
) {
3066 VERIFY(nvlist_alloc(&schild
[schildren
], NV_UNIQUE_NAME
,
3068 VERIFY(nvlist_add_string(schild
[schildren
],
3069 ZPOOL_CONFIG_TYPE
, VDEV_TYPE_HOLE
) == 0);
3070 VERIFY(nvlist_add_uint64(schild
[schildren
],
3071 ZPOOL_CONFIG_IS_HOLE
, 1) == 0);
3073 lastlogid
= schildren
;
3078 VERIFY(nvlist_lookup_nvlist_array(child
[c
],
3079 ZPOOL_CONFIG_CHILDREN
, &mchild
, &mchildren
) == 0);
3080 VERIFY(nvlist_dup(mchild
[0], &schild
[schildren
++], 0) == 0);
3083 /* OK, create a config that can be used to split */
3084 VERIFY(nvlist_alloc(&split
, NV_UNIQUE_NAME
, 0) == 0);
3085 VERIFY(nvlist_add_string(split
, ZPOOL_CONFIG_TYPE
,
3086 VDEV_TYPE_ROOT
) == 0);
3087 VERIFY(nvlist_add_nvlist_array(split
, ZPOOL_CONFIG_CHILDREN
, schild
,
3088 lastlogid
!= 0 ? lastlogid
: schildren
) == 0);
3090 VERIFY(nvlist_alloc(&config
, NV_UNIQUE_NAME
, 0) == 0);
3091 VERIFY(nvlist_add_nvlist(config
, ZPOOL_CONFIG_VDEV_TREE
, split
) == 0);
3093 for (c
= 0; c
< schildren
; c
++)
3094 nvlist_free(schild
[c
]);
3098 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
3100 (void) rw_wrlock(&ztest_name_lock
);
3101 error
= spa_vdev_split_mirror(spa
, "splitp", config
, NULL
, B_FALSE
);
3102 (void) rw_unlock(&ztest_name_lock
);
3104 nvlist_free(config
);
3107 (void) printf("successful split - results:\n");
3108 mutex_enter(&spa_namespace_lock
);
3109 show_pool_stats(spa
);
3110 show_pool_stats(spa_lookup("splitp"));
3111 mutex_exit(&spa_namespace_lock
);
3115 mutex_exit(&ztest_vdev_lock
);
3120 * Verify that we can attach and detach devices.
3124 ztest_vdev_attach_detach(ztest_ds_t
*zd
, uint64_t id
)
3126 ztest_shared_t
*zs
= ztest_shared
;
3127 spa_t
*spa
= ztest_spa
;
3128 spa_aux_vdev_t
*sav
= &spa
->spa_spares
;
3129 vdev_t
*rvd
= spa
->spa_root_vdev
;
3130 vdev_t
*oldvd
, *newvd
, *pvd
;
3134 uint64_t ashift
= ztest_get_ashift();
3135 uint64_t oldguid
, pguid
;
3136 uint64_t oldsize
, newsize
;
3137 char *oldpath
, *newpath
;
3139 int oldvd_has_siblings
= B_FALSE
;
3140 int newvd_is_spare
= B_FALSE
;
3142 int error
, expected_error
;
3144 if (ztest_opts
.zo_mmp_test
)
3147 oldpath
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
3148 newpath
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
3150 mutex_enter(&ztest_vdev_lock
);
3151 leaves
= MAX(zs
->zs_mirrors
, 1) * ztest_opts
.zo_raidz
;
3153 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
3156 * Decide whether to do an attach or a replace.
3158 replacing
= ztest_random(2);
3161 * Pick a random top-level vdev.
3163 top
= ztest_random_vdev_top(spa
, B_TRUE
);
3166 * Pick a random leaf within it.
3168 leaf
= ztest_random(leaves
);
3173 oldvd
= rvd
->vdev_child
[top
];
3174 if (zs
->zs_mirrors
>= 1) {
3175 ASSERT(oldvd
->vdev_ops
== &vdev_mirror_ops
);
3176 ASSERT(oldvd
->vdev_children
>= zs
->zs_mirrors
);
3177 oldvd
= oldvd
->vdev_child
[leaf
/ ztest_opts
.zo_raidz
];
3179 if (ztest_opts
.zo_raidz
> 1) {
3180 ASSERT(oldvd
->vdev_ops
== &vdev_raidz_ops
);
3181 ASSERT(oldvd
->vdev_children
== ztest_opts
.zo_raidz
);
3182 oldvd
= oldvd
->vdev_child
[leaf
% ztest_opts
.zo_raidz
];
3186 * If we're already doing an attach or replace, oldvd may be a
3187 * mirror vdev -- in which case, pick a random child.
3189 while (oldvd
->vdev_children
!= 0) {
3190 oldvd_has_siblings
= B_TRUE
;
3191 ASSERT(oldvd
->vdev_children
>= 2);
3192 oldvd
= oldvd
->vdev_child
[ztest_random(oldvd
->vdev_children
)];
3195 oldguid
= oldvd
->vdev_guid
;
3196 oldsize
= vdev_get_min_asize(oldvd
);
3197 oldvd_is_log
= oldvd
->vdev_top
->vdev_islog
;
3198 (void) strcpy(oldpath
, oldvd
->vdev_path
);
3199 pvd
= oldvd
->vdev_parent
;
3200 pguid
= pvd
->vdev_guid
;
3203 * If oldvd has siblings, then half of the time, detach it.
3205 if (oldvd_has_siblings
&& ztest_random(2) == 0) {
3206 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
3207 error
= spa_vdev_detach(spa
, oldguid
, pguid
, B_FALSE
);
3208 if (error
!= 0 && error
!= ENODEV
&& error
!= EBUSY
&&
3210 fatal(0, "detach (%s) returned %d", oldpath
, error
);
3215 * For the new vdev, choose with equal probability between the two
3216 * standard paths (ending in either 'a' or 'b') or a random hot spare.
3218 if (sav
->sav_count
!= 0 && ztest_random(3) == 0) {
3219 newvd
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)];
3220 newvd_is_spare
= B_TRUE
;
3221 (void) strcpy(newpath
, newvd
->vdev_path
);
3223 (void) snprintf(newpath
, MAXPATHLEN
, ztest_dev_template
,
3224 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
3225 top
* leaves
+ leaf
);
3226 if (ztest_random(2) == 0)
3227 newpath
[strlen(newpath
) - 1] = 'b';
3228 newvd
= vdev_lookup_by_path(rvd
, newpath
);
3232 newsize
= vdev_get_min_asize(newvd
);
3235 * Make newsize a little bigger or smaller than oldsize.
3236 * If it's smaller, the attach should fail.
3237 * If it's larger, and we're doing a replace,
3238 * we should get dynamic LUN growth when we're done.
3240 newsize
= 10 * oldsize
/ (9 + ztest_random(3));
3244 * If pvd is not a mirror or root, the attach should fail with ENOTSUP,
3245 * unless it's a replace; in that case any non-replacing parent is OK.
3247 * If newvd is already part of the pool, it should fail with EBUSY.
3249 * If newvd is too small, it should fail with EOVERFLOW.
3251 if (pvd
->vdev_ops
!= &vdev_mirror_ops
&&
3252 pvd
->vdev_ops
!= &vdev_root_ops
&& (!replacing
||
3253 pvd
->vdev_ops
== &vdev_replacing_ops
||
3254 pvd
->vdev_ops
== &vdev_spare_ops
))
3255 expected_error
= ENOTSUP
;
3256 else if (newvd_is_spare
&& (!replacing
|| oldvd_is_log
))
3257 expected_error
= ENOTSUP
;
3258 else if (newvd
== oldvd
)
3259 expected_error
= replacing
? 0 : EBUSY
;
3260 else if (vdev_lookup_by_path(rvd
, newpath
) != NULL
)
3261 expected_error
= EBUSY
;
3262 else if (newsize
< oldsize
)
3263 expected_error
= EOVERFLOW
;
3264 else if (ashift
> oldvd
->vdev_top
->vdev_ashift
)
3265 expected_error
= EDOM
;
3269 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
3272 * Build the nvlist describing newpath.
3274 root
= make_vdev_root(newpath
, NULL
, NULL
, newvd
== NULL
? newsize
: 0,
3275 ashift
, 0, 0, 0, 1);
3277 error
= spa_vdev_attach(spa
, oldguid
, root
, replacing
);
3282 * If our parent was the replacing vdev, but the replace completed,
3283 * then instead of failing with ENOTSUP we may either succeed,
3284 * fail with ENODEV, or fail with EOVERFLOW.
3286 if (expected_error
== ENOTSUP
&&
3287 (error
== 0 || error
== ENODEV
|| error
== EOVERFLOW
))
3288 expected_error
= error
;
3291 * If someone grew the LUN, the replacement may be too small.
3293 if (error
== EOVERFLOW
|| error
== EBUSY
)
3294 expected_error
= error
;
3296 /* XXX workaround 6690467 */
3297 if (error
!= expected_error
&& expected_error
!= EBUSY
) {
3298 fatal(0, "attach (%s %llu, %s %llu, %d) "
3299 "returned %d, expected %d",
3300 oldpath
, oldsize
, newpath
,
3301 newsize
, replacing
, error
, expected_error
);
3304 mutex_exit(&ztest_vdev_lock
);
3306 umem_free(oldpath
, MAXPATHLEN
);
3307 umem_free(newpath
, MAXPATHLEN
);
3311 * Callback function which expands the physical size of the vdev.
3314 grow_vdev(vdev_t
*vd
, void *arg
)
3316 ASSERTV(spa_t
*spa
= vd
->vdev_spa
);
3317 size_t *newsize
= arg
;
3321 ASSERT(spa_config_held(spa
, SCL_STATE
, RW_READER
) == SCL_STATE
);
3322 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
3324 if ((fd
= open(vd
->vdev_path
, O_RDWR
)) == -1)
3327 fsize
= lseek(fd
, 0, SEEK_END
);
3328 VERIFY(ftruncate(fd
, *newsize
) == 0);
3330 if (ztest_opts
.zo_verbose
>= 6) {
3331 (void) printf("%s grew from %lu to %lu bytes\n",
3332 vd
->vdev_path
, (ulong_t
)fsize
, (ulong_t
)*newsize
);
3339 * Callback function which expands a given vdev by calling vdev_online().
3343 online_vdev(vdev_t
*vd
, void *arg
)
3345 spa_t
*spa
= vd
->vdev_spa
;
3346 vdev_t
*tvd
= vd
->vdev_top
;
3347 uint64_t guid
= vd
->vdev_guid
;
3348 uint64_t generation
= spa
->spa_config_generation
+ 1;
3349 vdev_state_t newstate
= VDEV_STATE_UNKNOWN
;
3352 ASSERT(spa_config_held(spa
, SCL_STATE
, RW_READER
) == SCL_STATE
);
3353 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
3355 /* Calling vdev_online will initialize the new metaslabs */
3356 spa_config_exit(spa
, SCL_STATE
, spa
);
3357 error
= vdev_online(spa
, guid
, ZFS_ONLINE_EXPAND
, &newstate
);
3358 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3361 * If vdev_online returned an error or the underlying vdev_open
3362 * failed then we abort the expand. The only way to know that
3363 * vdev_open fails is by checking the returned newstate.
3365 if (error
|| newstate
!= VDEV_STATE_HEALTHY
) {
3366 if (ztest_opts
.zo_verbose
>= 5) {
3367 (void) printf("Unable to expand vdev, state %llu, "
3368 "error %d\n", (u_longlong_t
)newstate
, error
);
3372 ASSERT3U(newstate
, ==, VDEV_STATE_HEALTHY
);
3375 * Since we dropped the lock we need to ensure that we're
3376 * still talking to the original vdev. It's possible this
3377 * vdev may have been detached/replaced while we were
3378 * trying to online it.
3380 if (generation
!= spa
->spa_config_generation
) {
3381 if (ztest_opts
.zo_verbose
>= 5) {
3382 (void) printf("vdev configuration has changed, "
3383 "guid %llu, state %llu, expected gen %llu, "
3386 (u_longlong_t
)tvd
->vdev_state
,
3387 (u_longlong_t
)generation
,
3388 (u_longlong_t
)spa
->spa_config_generation
);
3396 * Traverse the vdev tree calling the supplied function.
3397 * We continue to walk the tree until we either have walked all
3398 * children or we receive a non-NULL return from the callback.
3399 * If a NULL callback is passed, then we just return back the first
3400 * leaf vdev we encounter.
3403 vdev_walk_tree(vdev_t
*vd
, vdev_t
*(*func
)(vdev_t
*, void *), void *arg
)
3407 if (vd
->vdev_ops
->vdev_op_leaf
) {
3411 return (func(vd
, arg
));
3414 for (c
= 0; c
< vd
->vdev_children
; c
++) {
3415 vdev_t
*cvd
= vd
->vdev_child
[c
];
3416 if ((cvd
= vdev_walk_tree(cvd
, func
, arg
)) != NULL
)
3423 * Verify that dynamic LUN growth works as expected.
3427 ztest_vdev_LUN_growth(ztest_ds_t
*zd
, uint64_t id
)
3429 spa_t
*spa
= ztest_spa
;
3431 metaslab_class_t
*mc
;
3432 metaslab_group_t
*mg
;
3433 size_t psize
, newsize
;
3435 uint64_t old_class_space
, new_class_space
, old_ms_count
, new_ms_count
;
3437 mutex_enter(&ztest_vdev_lock
);
3438 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3440 top
= ztest_random_vdev_top(spa
, B_TRUE
);
3442 tvd
= spa
->spa_root_vdev
->vdev_child
[top
];
3445 old_ms_count
= tvd
->vdev_ms_count
;
3446 old_class_space
= metaslab_class_get_space(mc
);
3449 * Determine the size of the first leaf vdev associated with
3450 * our top-level device.
3452 vd
= vdev_walk_tree(tvd
, NULL
, NULL
);
3453 ASSERT3P(vd
, !=, NULL
);
3454 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
3456 psize
= vd
->vdev_psize
;
3459 * We only try to expand the vdev if it's healthy, less than 4x its
3460 * original size, and it has a valid psize.
3462 if (tvd
->vdev_state
!= VDEV_STATE_HEALTHY
||
3463 psize
== 0 || psize
>= 4 * ztest_opts
.zo_vdev_size
) {
3464 spa_config_exit(spa
, SCL_STATE
, spa
);
3465 mutex_exit(&ztest_vdev_lock
);
3469 newsize
= psize
+ psize
/ 8;
3470 ASSERT3U(newsize
, >, psize
);
3472 if (ztest_opts
.zo_verbose
>= 6) {
3473 (void) printf("Expanding LUN %s from %lu to %lu\n",
3474 vd
->vdev_path
, (ulong_t
)psize
, (ulong_t
)newsize
);
3478 * Growing the vdev is a two step process:
3479 * 1). expand the physical size (i.e. relabel)
3480 * 2). online the vdev to create the new metaslabs
3482 if (vdev_walk_tree(tvd
, grow_vdev
, &newsize
) != NULL
||
3483 vdev_walk_tree(tvd
, online_vdev
, NULL
) != NULL
||
3484 tvd
->vdev_state
!= VDEV_STATE_HEALTHY
) {
3485 if (ztest_opts
.zo_verbose
>= 5) {
3486 (void) printf("Could not expand LUN because "
3487 "the vdev configuration changed.\n");
3489 spa_config_exit(spa
, SCL_STATE
, spa
);
3490 mutex_exit(&ztest_vdev_lock
);
3494 spa_config_exit(spa
, SCL_STATE
, spa
);
3497 * Expanding the LUN will update the config asynchronously,
3498 * thus we must wait for the async thread to complete any
3499 * pending tasks before proceeding.
3503 mutex_enter(&spa
->spa_async_lock
);
3504 done
= (spa
->spa_async_thread
== NULL
&& !spa
->spa_async_tasks
);
3505 mutex_exit(&spa
->spa_async_lock
);
3508 txg_wait_synced(spa_get_dsl(spa
), 0);
3509 (void) poll(NULL
, 0, 100);
3512 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3514 tvd
= spa
->spa_root_vdev
->vdev_child
[top
];
3515 new_ms_count
= tvd
->vdev_ms_count
;
3516 new_class_space
= metaslab_class_get_space(mc
);
3518 if (tvd
->vdev_mg
!= mg
|| mg
->mg_class
!= mc
) {
3519 if (ztest_opts
.zo_verbose
>= 5) {
3520 (void) printf("Could not verify LUN expansion due to "
3521 "intervening vdev offline or remove.\n");
3523 spa_config_exit(spa
, SCL_STATE
, spa
);
3524 mutex_exit(&ztest_vdev_lock
);
3529 * Make sure we were able to grow the vdev.
3531 if (new_ms_count
<= old_ms_count
)
3532 fatal(0, "LUN expansion failed: ms_count %llu <= %llu\n",
3533 old_ms_count
, new_ms_count
);
3536 * Make sure we were able to grow the pool.
3538 if (new_class_space
<= old_class_space
)
3539 fatal(0, "LUN expansion failed: class_space %llu <= %llu\n",
3540 old_class_space
, new_class_space
);
3542 if (ztest_opts
.zo_verbose
>= 5) {
3543 char oldnumbuf
[6], newnumbuf
[6];
3545 nicenum(old_class_space
, oldnumbuf
);
3546 nicenum(new_class_space
, newnumbuf
);
3547 (void) printf("%s grew from %s to %s\n",
3548 spa
->spa_name
, oldnumbuf
, newnumbuf
);
3551 spa_config_exit(spa
, SCL_STATE
, spa
);
3552 mutex_exit(&ztest_vdev_lock
);
3556 * Verify that dmu_objset_{create,destroy,open,close} work as expected.
3560 ztest_objset_create_cb(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
)
3563 * Create the objects common to all ztest datasets.
3565 VERIFY(zap_create_claim(os
, ZTEST_DIROBJ
,
3566 DMU_OT_ZAP_OTHER
, DMU_OT_NONE
, 0, tx
) == 0);
3570 ztest_dataset_create(char *dsname
)
3574 dsl_crypto_params_t
*dcp
= NULL
;
3577 * 50% of the time, we create encrypted datasets
3578 * using a random cipher suite and a hard-coded
3581 rand
= ztest_random(2);
3583 nvlist_t
*crypto_args
= fnvlist_alloc();
3584 nvlist_t
*props
= fnvlist_alloc();
3586 /* slight bias towards the default cipher suite */
3587 rand
= ztest_random(ZIO_CRYPT_FUNCTIONS
);
3588 if (rand
< ZIO_CRYPT_AES_128_CCM
)
3589 rand
= ZIO_CRYPT_ON
;
3591 fnvlist_add_uint64(props
,
3592 zfs_prop_to_name(ZFS_PROP_ENCRYPTION
), rand
);
3593 fnvlist_add_uint8_array(crypto_args
, "wkeydata",
3594 (uint8_t *)ztest_wkeydata
, WRAPPING_KEY_LEN
);
3597 * These parameters aren't really used by the kernel. They
3598 * are simply stored so that userspace knows how to load
3601 fnvlist_add_uint64(props
,
3602 zfs_prop_to_name(ZFS_PROP_KEYFORMAT
), ZFS_KEYFORMAT_RAW
);
3603 fnvlist_add_string(props
,
3604 zfs_prop_to_name(ZFS_PROP_KEYLOCATION
), "prompt");
3605 fnvlist_add_uint64(props
,
3606 zfs_prop_to_name(ZFS_PROP_PBKDF2_SALT
), 0ULL);
3607 fnvlist_add_uint64(props
,
3608 zfs_prop_to_name(ZFS_PROP_PBKDF2_ITERS
), 0ULL);
3610 VERIFY0(dsl_crypto_params_create_nvlist(DCP_CMD_NONE
, props
,
3611 crypto_args
, &dcp
));
3613 fnvlist_free(crypto_args
);
3614 fnvlist_free(props
);
3617 err
= dmu_objset_create(dsname
, DMU_OST_OTHER
, 0, dcp
,
3618 ztest_objset_create_cb
, NULL
);
3619 dsl_crypto_params_free(dcp
, !!err
);
3621 rand
= ztest_random(100);
3622 if (err
|| rand
< 80)
3625 if (ztest_opts
.zo_verbose
>= 5)
3626 (void) printf("Setting dataset %s to sync always\n", dsname
);
3627 return (ztest_dsl_prop_set_uint64(dsname
, ZFS_PROP_SYNC
,
3628 ZFS_SYNC_ALWAYS
, B_FALSE
));
3633 ztest_objset_destroy_cb(const char *name
, void *arg
)
3636 dmu_object_info_t doi
;
3640 * Verify that the dataset contains a directory object.
3642 VERIFY0(ztest_dmu_objset_own(name
, DMU_OST_OTHER
, B_TRUE
,
3643 B_TRUE
, FTAG
, &os
));
3644 error
= dmu_object_info(os
, ZTEST_DIROBJ
, &doi
);
3645 if (error
!= ENOENT
) {
3646 /* We could have crashed in the middle of destroying it */
3648 ASSERT3U(doi
.doi_type
, ==, DMU_OT_ZAP_OTHER
);
3649 ASSERT3S(doi
.doi_physical_blocks_512
, >=, 0);
3651 dmu_objset_disown(os
, B_TRUE
, FTAG
);
3654 * Destroy the dataset.
3656 if (strchr(name
, '@') != NULL
) {
3657 VERIFY0(dsl_destroy_snapshot(name
, B_TRUE
));
3659 error
= dsl_destroy_head(name
);
3660 /* There could be a hold on this dataset */
3668 ztest_snapshot_create(char *osname
, uint64_t id
)
3670 char snapname
[ZFS_MAX_DATASET_NAME_LEN
];
3673 (void) snprintf(snapname
, sizeof (snapname
), "%llu", (u_longlong_t
)id
);
3675 error
= dmu_objset_snapshot_one(osname
, snapname
);
3676 if (error
== ENOSPC
) {
3677 ztest_record_enospc(FTAG
);
3680 if (error
!= 0 && error
!= EEXIST
) {
3681 fatal(0, "ztest_snapshot_create(%s@%s) = %d", osname
,
3688 ztest_snapshot_destroy(char *osname
, uint64_t id
)
3690 char snapname
[ZFS_MAX_DATASET_NAME_LEN
];
3693 (void) snprintf(snapname
, sizeof (snapname
), "%s@%llu", osname
,
3696 error
= dsl_destroy_snapshot(snapname
, B_FALSE
);
3697 if (error
!= 0 && error
!= ENOENT
)
3698 fatal(0, "ztest_snapshot_destroy(%s) = %d", snapname
, error
);
3704 ztest_dmu_objset_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
3710 char name
[ZFS_MAX_DATASET_NAME_LEN
];
3714 zdtmp
= umem_alloc(sizeof (ztest_ds_t
), UMEM_NOFAIL
);
3716 (void) rw_rdlock(&ztest_name_lock
);
3718 (void) snprintf(name
, sizeof (name
), "%s/temp_%llu",
3719 ztest_opts
.zo_pool
, (u_longlong_t
)id
);
3722 * If this dataset exists from a previous run, process its replay log
3723 * half of the time. If we don't replay it, then dsl_destroy_head()
3724 * (invoked from ztest_objset_destroy_cb()) should just throw it away.
3726 if (ztest_random(2) == 0 &&
3727 ztest_dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
,
3728 B_TRUE
, FTAG
, &os
) == 0) {
3729 ztest_zd_init(zdtmp
, NULL
, os
);
3730 zil_replay(os
, zdtmp
, ztest_replay_vector
);
3731 ztest_zd_fini(zdtmp
);
3732 txg_wait_synced(dmu_objset_pool(os
), 0);
3733 dmu_objset_disown(os
, B_TRUE
, FTAG
);
3737 * There may be an old instance of the dataset we're about to
3738 * create lying around from a previous run. If so, destroy it
3739 * and all of its snapshots.
3741 (void) dmu_objset_find(name
, ztest_objset_destroy_cb
, NULL
,
3742 DS_FIND_CHILDREN
| DS_FIND_SNAPSHOTS
);
3745 * Verify that the destroyed dataset is no longer in the namespace.
3747 VERIFY3U(ENOENT
, ==, ztest_dmu_objset_own(name
, DMU_OST_OTHER
, B_TRUE
,
3748 B_TRUE
, FTAG
, &os
));
3751 * Verify that we can create a new dataset.
3753 error
= ztest_dataset_create(name
);
3755 if (error
== ENOSPC
) {
3756 ztest_record_enospc(FTAG
);
3759 fatal(0, "dmu_objset_create(%s) = %d", name
, error
);
3762 VERIFY0(ztest_dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, B_TRUE
,
3765 ztest_zd_init(zdtmp
, NULL
, os
);
3768 * Open the intent log for it.
3770 zilog
= zil_open(os
, ztest_get_data
);
3773 * Put some objects in there, do a little I/O to them,
3774 * and randomly take a couple of snapshots along the way.
3776 iters
= ztest_random(5);
3777 for (i
= 0; i
< iters
; i
++) {
3778 ztest_dmu_object_alloc_free(zdtmp
, id
);
3779 if (ztest_random(iters
) == 0)
3780 (void) ztest_snapshot_create(name
, i
);
3784 * Verify that we cannot create an existing dataset.
3786 VERIFY3U(EEXIST
, ==,
3787 dmu_objset_create(name
, DMU_OST_OTHER
, 0, NULL
, NULL
, NULL
));
3790 * Verify that we can hold an objset that is also owned.
3792 VERIFY3U(0, ==, dmu_objset_hold(name
, FTAG
, &os2
));
3793 dmu_objset_rele(os2
, FTAG
);
3796 * Verify that we cannot own an objset that is already owned.
3798 VERIFY3U(EBUSY
, ==, ztest_dmu_objset_own(name
, DMU_OST_OTHER
,
3799 B_FALSE
, B_TRUE
, FTAG
, &os2
));
3802 txg_wait_synced(spa_get_dsl(os
->os_spa
), 0);
3803 dmu_objset_disown(os
, B_TRUE
, FTAG
);
3804 ztest_zd_fini(zdtmp
);
3806 (void) rw_unlock(&ztest_name_lock
);
3808 umem_free(zdtmp
, sizeof (ztest_ds_t
));
3812 * Verify that dmu_snapshot_{create,destroy,open,close} work as expected.
3815 ztest_dmu_snapshot_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
3817 (void) rw_rdlock(&ztest_name_lock
);
3818 (void) ztest_snapshot_destroy(zd
->zd_name
, id
);
3819 (void) ztest_snapshot_create(zd
->zd_name
, id
);
3820 (void) rw_unlock(&ztest_name_lock
);
3824 * Cleanup non-standard snapshots and clones.
3827 ztest_dsl_dataset_cleanup(char *osname
, uint64_t id
)
3836 snap1name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3837 clone1name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3838 snap2name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3839 clone2name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3840 snap3name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3842 (void) snprintf(snap1name
, ZFS_MAX_DATASET_NAME_LEN
,
3843 "%s@s1_%llu", osname
, (u_longlong_t
)id
);
3844 (void) snprintf(clone1name
, ZFS_MAX_DATASET_NAME_LEN
,
3845 "%s/c1_%llu", osname
, (u_longlong_t
)id
);
3846 (void) snprintf(snap2name
, ZFS_MAX_DATASET_NAME_LEN
,
3847 "%s@s2_%llu", clone1name
, (u_longlong_t
)id
);
3848 (void) snprintf(clone2name
, ZFS_MAX_DATASET_NAME_LEN
,
3849 "%s/c2_%llu", osname
, (u_longlong_t
)id
);
3850 (void) snprintf(snap3name
, ZFS_MAX_DATASET_NAME_LEN
,
3851 "%s@s3_%llu", clone1name
, (u_longlong_t
)id
);
3853 error
= dsl_destroy_head(clone2name
);
3854 if (error
&& error
!= ENOENT
)
3855 fatal(0, "dsl_destroy_head(%s) = %d", clone2name
, error
);
3856 error
= dsl_destroy_snapshot(snap3name
, B_FALSE
);
3857 if (error
&& error
!= ENOENT
)
3858 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap3name
, error
);
3859 error
= dsl_destroy_snapshot(snap2name
, B_FALSE
);
3860 if (error
&& error
!= ENOENT
)
3861 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap2name
, error
);
3862 error
= dsl_destroy_head(clone1name
);
3863 if (error
&& error
!= ENOENT
)
3864 fatal(0, "dsl_destroy_head(%s) = %d", clone1name
, error
);
3865 error
= dsl_destroy_snapshot(snap1name
, B_FALSE
);
3866 if (error
&& error
!= ENOENT
)
3867 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap1name
, error
);
3869 umem_free(snap1name
, ZFS_MAX_DATASET_NAME_LEN
);
3870 umem_free(clone1name
, ZFS_MAX_DATASET_NAME_LEN
);
3871 umem_free(snap2name
, ZFS_MAX_DATASET_NAME_LEN
);
3872 umem_free(clone2name
, ZFS_MAX_DATASET_NAME_LEN
);
3873 umem_free(snap3name
, ZFS_MAX_DATASET_NAME_LEN
);
3877 * Verify dsl_dataset_promote handles EBUSY
3880 ztest_dsl_dataset_promote_busy(ztest_ds_t
*zd
, uint64_t id
)
3888 char *osname
= zd
->zd_name
;
3891 snap1name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3892 clone1name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3893 snap2name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3894 clone2name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3895 snap3name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3897 (void) rw_rdlock(&ztest_name_lock
);
3899 ztest_dsl_dataset_cleanup(osname
, id
);
3901 (void) snprintf(snap1name
, ZFS_MAX_DATASET_NAME_LEN
,
3902 "%s@s1_%llu", osname
, (u_longlong_t
)id
);
3903 (void) snprintf(clone1name
, ZFS_MAX_DATASET_NAME_LEN
,
3904 "%s/c1_%llu", osname
, (u_longlong_t
)id
);
3905 (void) snprintf(snap2name
, ZFS_MAX_DATASET_NAME_LEN
,
3906 "%s@s2_%llu", clone1name
, (u_longlong_t
)id
);
3907 (void) snprintf(clone2name
, ZFS_MAX_DATASET_NAME_LEN
,
3908 "%s/c2_%llu", osname
, (u_longlong_t
)id
);
3909 (void) snprintf(snap3name
, ZFS_MAX_DATASET_NAME_LEN
,
3910 "%s@s3_%llu", clone1name
, (u_longlong_t
)id
);
3912 error
= dmu_objset_snapshot_one(osname
, strchr(snap1name
, '@') + 1);
3913 if (error
&& error
!= EEXIST
) {
3914 if (error
== ENOSPC
) {
3915 ztest_record_enospc(FTAG
);
3918 fatal(0, "dmu_take_snapshot(%s) = %d", snap1name
, error
);
3921 error
= dmu_objset_clone(clone1name
, snap1name
);
3923 if (error
== ENOSPC
) {
3924 ztest_record_enospc(FTAG
);
3927 fatal(0, "dmu_objset_create(%s) = %d", clone1name
, error
);
3930 error
= dmu_objset_snapshot_one(clone1name
, strchr(snap2name
, '@') + 1);
3931 if (error
&& error
!= EEXIST
) {
3932 if (error
== ENOSPC
) {
3933 ztest_record_enospc(FTAG
);
3936 fatal(0, "dmu_open_snapshot(%s) = %d", snap2name
, error
);
3939 error
= dmu_objset_snapshot_one(clone1name
, strchr(snap3name
, '@') + 1);
3940 if (error
&& error
!= EEXIST
) {
3941 if (error
== ENOSPC
) {
3942 ztest_record_enospc(FTAG
);
3945 fatal(0, "dmu_open_snapshot(%s) = %d", snap3name
, error
);
3948 error
= dmu_objset_clone(clone2name
, snap3name
);
3950 if (error
== ENOSPC
) {
3951 ztest_record_enospc(FTAG
);
3954 fatal(0, "dmu_objset_create(%s) = %d", clone2name
, error
);
3957 error
= ztest_dmu_objset_own(snap2name
, DMU_OST_ANY
, B_TRUE
, B_TRUE
,
3960 fatal(0, "dmu_objset_own(%s) = %d", snap2name
, error
);
3961 error
= dsl_dataset_promote(clone2name
, NULL
);
3962 if (error
== ENOSPC
) {
3963 dmu_objset_disown(os
, B_TRUE
, FTAG
);
3964 ztest_record_enospc(FTAG
);
3968 fatal(0, "dsl_dataset_promote(%s), %d, not EBUSY", clone2name
,
3970 dmu_objset_disown(os
, B_TRUE
, FTAG
);
3973 ztest_dsl_dataset_cleanup(osname
, id
);
3975 (void) rw_unlock(&ztest_name_lock
);
3977 umem_free(snap1name
, ZFS_MAX_DATASET_NAME_LEN
);
3978 umem_free(clone1name
, ZFS_MAX_DATASET_NAME_LEN
);
3979 umem_free(snap2name
, ZFS_MAX_DATASET_NAME_LEN
);
3980 umem_free(clone2name
, ZFS_MAX_DATASET_NAME_LEN
);
3981 umem_free(snap3name
, ZFS_MAX_DATASET_NAME_LEN
);
3984 #undef OD_ARRAY_SIZE
3985 #define OD_ARRAY_SIZE 4
3988 * Verify that dmu_object_{alloc,free} work as expected.
3991 ztest_dmu_object_alloc_free(ztest_ds_t
*zd
, uint64_t id
)
3998 size
= sizeof (ztest_od_t
) * OD_ARRAY_SIZE
;
3999 od
= umem_alloc(size
, UMEM_NOFAIL
);
4000 batchsize
= OD_ARRAY_SIZE
;
4002 for (b
= 0; b
< batchsize
; b
++)
4003 ztest_od_init(od
+ b
, id
, FTAG
, b
, DMU_OT_UINT64_OTHER
,
4007 * Destroy the previous batch of objects, create a new batch,
4008 * and do some I/O on the new objects.
4010 if (ztest_object_init(zd
, od
, size
, B_TRUE
) != 0)
4013 while (ztest_random(4 * batchsize
) != 0)
4014 ztest_io(zd
, od
[ztest_random(batchsize
)].od_object
,
4015 ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
4017 umem_free(od
, size
);
4020 #undef OD_ARRAY_SIZE
4021 #define OD_ARRAY_SIZE 2
4024 * Verify that dmu_{read,write} work as expected.
4027 ztest_dmu_read_write(ztest_ds_t
*zd
, uint64_t id
)
4032 objset_t
*os
= zd
->zd_os
;
4033 size
= sizeof (ztest_od_t
) * OD_ARRAY_SIZE
;
4034 od
= umem_alloc(size
, UMEM_NOFAIL
);
4036 int i
, freeit
, error
;
4038 bufwad_t
*packbuf
, *bigbuf
, *pack
, *bigH
, *bigT
;
4039 uint64_t packobj
, packoff
, packsize
, bigobj
, bigoff
, bigsize
;
4040 uint64_t chunksize
= (1000 + ztest_random(1000)) * sizeof (uint64_t);
4041 uint64_t regions
= 997;
4042 uint64_t stride
= 123456789ULL;
4043 uint64_t width
= 40;
4044 int free_percent
= 5;
4047 * This test uses two objects, packobj and bigobj, that are always
4048 * updated together (i.e. in the same tx) so that their contents are
4049 * in sync and can be compared. Their contents relate to each other
4050 * in a simple way: packobj is a dense array of 'bufwad' structures,
4051 * while bigobj is a sparse array of the same bufwads. Specifically,
4052 * for any index n, there are three bufwads that should be identical:
4054 * packobj, at offset n * sizeof (bufwad_t)
4055 * bigobj, at the head of the nth chunk
4056 * bigobj, at the tail of the nth chunk
4058 * The chunk size is arbitrary. It doesn't have to be a power of two,
4059 * and it doesn't have any relation to the object blocksize.
4060 * The only requirement is that it can hold at least two bufwads.
4062 * Normally, we write the bufwad to each of these locations.
4063 * However, free_percent of the time we instead write zeroes to
4064 * packobj and perform a dmu_free_range() on bigobj. By comparing
4065 * bigobj to packobj, we can verify that the DMU is correctly
4066 * tracking which parts of an object are allocated and free,
4067 * and that the contents of the allocated blocks are correct.
4071 * Read the directory info. If it's the first time, set things up.
4073 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0, chunksize
);
4074 ztest_od_init(od
+ 1, id
, FTAG
, 1, DMU_OT_UINT64_OTHER
, 0, 0,
4077 if (ztest_object_init(zd
, od
, size
, B_FALSE
) != 0) {
4078 umem_free(od
, size
);
4082 bigobj
= od
[0].od_object
;
4083 packobj
= od
[1].od_object
;
4084 chunksize
= od
[0].od_gen
;
4085 ASSERT(chunksize
== od
[1].od_gen
);
4088 * Prefetch a random chunk of the big object.
4089 * Our aim here is to get some async reads in flight
4090 * for blocks that we may free below; the DMU should
4091 * handle this race correctly.
4093 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
4094 s
= 1 + ztest_random(2 * width
- 1);
4095 dmu_prefetch(os
, bigobj
, 0, n
* chunksize
, s
* chunksize
,
4096 ZIO_PRIORITY_SYNC_READ
);
4099 * Pick a random index and compute the offsets into packobj and bigobj.
4101 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
4102 s
= 1 + ztest_random(width
- 1);
4104 packoff
= n
* sizeof (bufwad_t
);
4105 packsize
= s
* sizeof (bufwad_t
);
4107 bigoff
= n
* chunksize
;
4108 bigsize
= s
* chunksize
;
4110 packbuf
= umem_alloc(packsize
, UMEM_NOFAIL
);
4111 bigbuf
= umem_alloc(bigsize
, UMEM_NOFAIL
);
4114 * free_percent of the time, free a range of bigobj rather than
4117 freeit
= (ztest_random(100) < free_percent
);
4120 * Read the current contents of our objects.
4122 error
= dmu_read(os
, packobj
, packoff
, packsize
, packbuf
,
4125 error
= dmu_read(os
, bigobj
, bigoff
, bigsize
, bigbuf
,
4130 * Get a tx for the mods to both packobj and bigobj.
4132 tx
= dmu_tx_create(os
);
4134 dmu_tx_hold_write(tx
, packobj
, packoff
, packsize
);
4137 dmu_tx_hold_free(tx
, bigobj
, bigoff
, bigsize
);
4139 dmu_tx_hold_write(tx
, bigobj
, bigoff
, bigsize
);
4141 /* This accounts for setting the checksum/compression. */
4142 dmu_tx_hold_bonus(tx
, bigobj
);
4144 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4146 umem_free(packbuf
, packsize
);
4147 umem_free(bigbuf
, bigsize
);
4148 umem_free(od
, size
);
4152 enum zio_checksum cksum
;
4154 cksum
= (enum zio_checksum
)
4155 ztest_random_dsl_prop(ZFS_PROP_CHECKSUM
);
4156 } while (cksum
>= ZIO_CHECKSUM_LEGACY_FUNCTIONS
);
4157 dmu_object_set_checksum(os
, bigobj
, cksum
, tx
);
4159 enum zio_compress comp
;
4161 comp
= (enum zio_compress
)
4162 ztest_random_dsl_prop(ZFS_PROP_COMPRESSION
);
4163 } while (comp
>= ZIO_COMPRESS_LEGACY_FUNCTIONS
);
4164 dmu_object_set_compress(os
, bigobj
, comp
, tx
);
4167 * For each index from n to n + s, verify that the existing bufwad
4168 * in packobj matches the bufwads at the head and tail of the
4169 * corresponding chunk in bigobj. Then update all three bufwads
4170 * with the new values we want to write out.
4172 for (i
= 0; i
< s
; i
++) {
4174 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
4176 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* chunksize
);
4178 bigT
= (bufwad_t
*)((char *)bigH
+ chunksize
) - 1;
4180 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
4181 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
4183 if (pack
->bw_txg
> txg
)
4184 fatal(0, "future leak: got %llx, open txg is %llx",
4187 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
4188 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
4189 pack
->bw_index
, n
, i
);
4191 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
4192 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
4194 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
4195 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
4198 bzero(pack
, sizeof (bufwad_t
));
4200 pack
->bw_index
= n
+ i
;
4202 pack
->bw_data
= 1 + ztest_random(-2ULL);
4209 * We've verified all the old bufwads, and made new ones.
4210 * Now write them out.
4212 dmu_write(os
, packobj
, packoff
, packsize
, packbuf
, tx
);
4215 if (ztest_opts
.zo_verbose
>= 7) {
4216 (void) printf("freeing offset %llx size %llx"
4218 (u_longlong_t
)bigoff
,
4219 (u_longlong_t
)bigsize
,
4222 VERIFY(0 == dmu_free_range(os
, bigobj
, bigoff
, bigsize
, tx
));
4224 if (ztest_opts
.zo_verbose
>= 7) {
4225 (void) printf("writing offset %llx size %llx"
4227 (u_longlong_t
)bigoff
,
4228 (u_longlong_t
)bigsize
,
4231 dmu_write(os
, bigobj
, bigoff
, bigsize
, bigbuf
, tx
);
4237 * Sanity check the stuff we just wrote.
4240 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
4241 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
4243 VERIFY(0 == dmu_read(os
, packobj
, packoff
,
4244 packsize
, packcheck
, DMU_READ_PREFETCH
));
4245 VERIFY(0 == dmu_read(os
, bigobj
, bigoff
,
4246 bigsize
, bigcheck
, DMU_READ_PREFETCH
));
4248 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
4249 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
4251 umem_free(packcheck
, packsize
);
4252 umem_free(bigcheck
, bigsize
);
4255 umem_free(packbuf
, packsize
);
4256 umem_free(bigbuf
, bigsize
);
4257 umem_free(od
, size
);
4261 compare_and_update_pbbufs(uint64_t s
, bufwad_t
*packbuf
, bufwad_t
*bigbuf
,
4262 uint64_t bigsize
, uint64_t n
, uint64_t chunksize
, uint64_t txg
)
4270 * For each index from n to n + s, verify that the existing bufwad
4271 * in packobj matches the bufwads at the head and tail of the
4272 * corresponding chunk in bigobj. Then update all three bufwads
4273 * with the new values we want to write out.
4275 for (i
= 0; i
< s
; i
++) {
4277 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
4279 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* chunksize
);
4281 bigT
= (bufwad_t
*)((char *)bigH
+ chunksize
) - 1;
4283 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
4284 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
4286 if (pack
->bw_txg
> txg
)
4287 fatal(0, "future leak: got %llx, open txg is %llx",
4290 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
4291 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
4292 pack
->bw_index
, n
, i
);
4294 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
4295 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
4297 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
4298 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
4300 pack
->bw_index
= n
+ i
;
4302 pack
->bw_data
= 1 + ztest_random(-2ULL);
4309 #undef OD_ARRAY_SIZE
4310 #define OD_ARRAY_SIZE 2
4313 ztest_dmu_read_write_zcopy(ztest_ds_t
*zd
, uint64_t id
)
4315 objset_t
*os
= zd
->zd_os
;
4322 bufwad_t
*packbuf
, *bigbuf
;
4323 uint64_t packobj
, packoff
, packsize
, bigobj
, bigoff
, bigsize
;
4324 uint64_t blocksize
= ztest_random_blocksize();
4325 uint64_t chunksize
= blocksize
;
4326 uint64_t regions
= 997;
4327 uint64_t stride
= 123456789ULL;
4329 dmu_buf_t
*bonus_db
;
4330 arc_buf_t
**bigbuf_arcbufs
;
4331 dmu_object_info_t doi
;
4333 size
= sizeof (ztest_od_t
) * OD_ARRAY_SIZE
;
4334 od
= umem_alloc(size
, UMEM_NOFAIL
);
4337 * This test uses two objects, packobj and bigobj, that are always
4338 * updated together (i.e. in the same tx) so that their contents are
4339 * in sync and can be compared. Their contents relate to each other
4340 * in a simple way: packobj is a dense array of 'bufwad' structures,
4341 * while bigobj is a sparse array of the same bufwads. Specifically,
4342 * for any index n, there are three bufwads that should be identical:
4344 * packobj, at offset n * sizeof (bufwad_t)
4345 * bigobj, at the head of the nth chunk
4346 * bigobj, at the tail of the nth chunk
4348 * The chunk size is set equal to bigobj block size so that
4349 * dmu_assign_arcbuf() can be tested for object updates.
4353 * Read the directory info. If it's the first time, set things up.
4355 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0, 0);
4356 ztest_od_init(od
+ 1, id
, FTAG
, 1, DMU_OT_UINT64_OTHER
, 0, 0,
4360 if (ztest_object_init(zd
, od
, size
, B_FALSE
) != 0) {
4361 umem_free(od
, size
);
4365 bigobj
= od
[0].od_object
;
4366 packobj
= od
[1].od_object
;
4367 blocksize
= od
[0].od_blocksize
;
4368 chunksize
= blocksize
;
4369 ASSERT(chunksize
== od
[1].od_gen
);
4371 VERIFY(dmu_object_info(os
, bigobj
, &doi
) == 0);
4372 VERIFY(ISP2(doi
.doi_data_block_size
));
4373 VERIFY(chunksize
== doi
.doi_data_block_size
);
4374 VERIFY(chunksize
>= 2 * sizeof (bufwad_t
));
4377 * Pick a random index and compute the offsets into packobj and bigobj.
4379 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
4380 s
= 1 + ztest_random(width
- 1);
4382 packoff
= n
* sizeof (bufwad_t
);
4383 packsize
= s
* sizeof (bufwad_t
);
4385 bigoff
= n
* chunksize
;
4386 bigsize
= s
* chunksize
;
4388 packbuf
= umem_zalloc(packsize
, UMEM_NOFAIL
);
4389 bigbuf
= umem_zalloc(bigsize
, UMEM_NOFAIL
);
4391 VERIFY3U(0, ==, dmu_bonus_hold(os
, bigobj
, FTAG
, &bonus_db
));
4393 bigbuf_arcbufs
= umem_zalloc(2 * s
* sizeof (arc_buf_t
*), UMEM_NOFAIL
);
4396 * Iteration 0 test zcopy for DB_UNCACHED dbufs.
4397 * Iteration 1 test zcopy to already referenced dbufs.
4398 * Iteration 2 test zcopy to dirty dbuf in the same txg.
4399 * Iteration 3 test zcopy to dbuf dirty in previous txg.
4400 * Iteration 4 test zcopy when dbuf is no longer dirty.
4401 * Iteration 5 test zcopy when it can't be done.
4402 * Iteration 6 one more zcopy write.
4404 for (i
= 0; i
< 7; i
++) {
4409 * In iteration 5 (i == 5) use arcbufs
4410 * that don't match bigobj blksz to test
4411 * dmu_assign_arcbuf() when it can't directly
4412 * assign an arcbuf to a dbuf.
4414 for (j
= 0; j
< s
; j
++) {
4415 if (i
!= 5 || chunksize
< (SPA_MINBLOCKSIZE
* 2)) {
4417 dmu_request_arcbuf(bonus_db
, chunksize
);
4419 bigbuf_arcbufs
[2 * j
] =
4420 dmu_request_arcbuf(bonus_db
, chunksize
/ 2);
4421 bigbuf_arcbufs
[2 * j
+ 1] =
4422 dmu_request_arcbuf(bonus_db
, chunksize
/ 2);
4427 * Get a tx for the mods to both packobj and bigobj.
4429 tx
= dmu_tx_create(os
);
4431 dmu_tx_hold_write(tx
, packobj
, packoff
, packsize
);
4432 dmu_tx_hold_write(tx
, bigobj
, bigoff
, bigsize
);
4434 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4436 umem_free(packbuf
, packsize
);
4437 umem_free(bigbuf
, bigsize
);
4438 for (j
= 0; j
< s
; j
++) {
4440 chunksize
< (SPA_MINBLOCKSIZE
* 2)) {
4441 dmu_return_arcbuf(bigbuf_arcbufs
[j
]);
4444 bigbuf_arcbufs
[2 * j
]);
4446 bigbuf_arcbufs
[2 * j
+ 1]);
4449 umem_free(bigbuf_arcbufs
, 2 * s
* sizeof (arc_buf_t
*));
4450 umem_free(od
, size
);
4451 dmu_buf_rele(bonus_db
, FTAG
);
4456 * 50% of the time don't read objects in the 1st iteration to
4457 * test dmu_assign_arcbuf() for the case when there're no
4458 * existing dbufs for the specified offsets.
4460 if (i
!= 0 || ztest_random(2) != 0) {
4461 error
= dmu_read(os
, packobj
, packoff
,
4462 packsize
, packbuf
, DMU_READ_PREFETCH
);
4464 error
= dmu_read(os
, bigobj
, bigoff
, bigsize
,
4465 bigbuf
, DMU_READ_PREFETCH
);
4468 compare_and_update_pbbufs(s
, packbuf
, bigbuf
, bigsize
,
4472 * We've verified all the old bufwads, and made new ones.
4473 * Now write them out.
4475 dmu_write(os
, packobj
, packoff
, packsize
, packbuf
, tx
);
4476 if (ztest_opts
.zo_verbose
>= 7) {
4477 (void) printf("writing offset %llx size %llx"
4479 (u_longlong_t
)bigoff
,
4480 (u_longlong_t
)bigsize
,
4483 for (off
= bigoff
, j
= 0; j
< s
; j
++, off
+= chunksize
) {
4485 if (i
!= 5 || chunksize
< (SPA_MINBLOCKSIZE
* 2)) {
4486 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
),
4487 bigbuf_arcbufs
[j
]->b_data
, chunksize
);
4489 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
),
4490 bigbuf_arcbufs
[2 * j
]->b_data
,
4492 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
) +
4494 bigbuf_arcbufs
[2 * j
+ 1]->b_data
,
4499 VERIFY(dmu_buf_hold(os
, bigobj
, off
,
4500 FTAG
, &dbt
, DMU_READ_NO_PREFETCH
) == 0);
4502 if (i
!= 5 || chunksize
< (SPA_MINBLOCKSIZE
* 2)) {
4503 dmu_assign_arcbuf(bonus_db
, off
,
4504 bigbuf_arcbufs
[j
], tx
);
4506 dmu_assign_arcbuf(bonus_db
, off
,
4507 bigbuf_arcbufs
[2 * j
], tx
);
4508 dmu_assign_arcbuf(bonus_db
,
4509 off
+ chunksize
/ 2,
4510 bigbuf_arcbufs
[2 * j
+ 1], tx
);
4513 dmu_buf_rele(dbt
, FTAG
);
4519 * Sanity check the stuff we just wrote.
4522 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
4523 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
4525 VERIFY(0 == dmu_read(os
, packobj
, packoff
,
4526 packsize
, packcheck
, DMU_READ_PREFETCH
));
4527 VERIFY(0 == dmu_read(os
, bigobj
, bigoff
,
4528 bigsize
, bigcheck
, DMU_READ_PREFETCH
));
4530 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
4531 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
4533 umem_free(packcheck
, packsize
);
4534 umem_free(bigcheck
, bigsize
);
4537 txg_wait_open(dmu_objset_pool(os
), 0);
4538 } else if (i
== 3) {
4539 txg_wait_synced(dmu_objset_pool(os
), 0);
4543 dmu_buf_rele(bonus_db
, FTAG
);
4544 umem_free(packbuf
, packsize
);
4545 umem_free(bigbuf
, bigsize
);
4546 umem_free(bigbuf_arcbufs
, 2 * s
* sizeof (arc_buf_t
*));
4547 umem_free(od
, size
);
4552 ztest_dmu_write_parallel(ztest_ds_t
*zd
, uint64_t id
)
4556 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4557 uint64_t offset
= (1ULL << (ztest_random(20) + 43)) +
4558 (ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
4561 * Have multiple threads write to large offsets in an object
4562 * to verify that parallel writes to an object -- even to the
4563 * same blocks within the object -- doesn't cause any trouble.
4565 ztest_od_init(od
, ID_PARALLEL
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0, 0);
4567 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0)
4570 while (ztest_random(10) != 0)
4571 ztest_io(zd
, od
->od_object
, offset
);
4573 umem_free(od
, sizeof (ztest_od_t
));
4577 ztest_dmu_prealloc(ztest_ds_t
*zd
, uint64_t id
)
4580 uint64_t offset
= (1ULL << (ztest_random(4) + SPA_MAXBLOCKSHIFT
)) +
4581 (ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
4582 uint64_t count
= ztest_random(20) + 1;
4583 uint64_t blocksize
= ztest_random_blocksize();
4586 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4588 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0, 0);
4590 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
),
4591 !ztest_random(2)) != 0) {
4592 umem_free(od
, sizeof (ztest_od_t
));
4596 if (ztest_truncate(zd
, od
->od_object
, offset
, count
* blocksize
) != 0) {
4597 umem_free(od
, sizeof (ztest_od_t
));
4601 ztest_prealloc(zd
, od
->od_object
, offset
, count
* blocksize
);
4603 data
= umem_zalloc(blocksize
, UMEM_NOFAIL
);
4605 while (ztest_random(count
) != 0) {
4606 uint64_t randoff
= offset
+ (ztest_random(count
) * blocksize
);
4607 if (ztest_write(zd
, od
->od_object
, randoff
, blocksize
,
4610 while (ztest_random(4) != 0)
4611 ztest_io(zd
, od
->od_object
, randoff
);
4614 umem_free(data
, blocksize
);
4615 umem_free(od
, sizeof (ztest_od_t
));
4619 * Verify that zap_{create,destroy,add,remove,update} work as expected.
4621 #define ZTEST_ZAP_MIN_INTS 1
4622 #define ZTEST_ZAP_MAX_INTS 4
4623 #define ZTEST_ZAP_MAX_PROPS 1000
4626 ztest_zap(ztest_ds_t
*zd
, uint64_t id
)
4628 objset_t
*os
= zd
->zd_os
;
4631 uint64_t txg
, last_txg
;
4632 uint64_t value
[ZTEST_ZAP_MAX_INTS
];
4633 uint64_t zl_ints
, zl_intsize
, prop
;
4636 char propname
[100], txgname
[100];
4638 char *hc
[2] = { "s.acl.h", ".s.open.h.hyLZlg" };
4640 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4641 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_ZAP_OTHER
, 0, 0, 0);
4643 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
),
4644 !ztest_random(2)) != 0)
4647 object
= od
->od_object
;
4650 * Generate a known hash collision, and verify that
4651 * we can lookup and remove both entries.
4653 tx
= dmu_tx_create(os
);
4654 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4655 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4658 for (i
= 0; i
< 2; i
++) {
4660 VERIFY3U(0, ==, zap_add(os
, object
, hc
[i
], sizeof (uint64_t),
4663 for (i
= 0; i
< 2; i
++) {
4664 VERIFY3U(EEXIST
, ==, zap_add(os
, object
, hc
[i
],
4665 sizeof (uint64_t), 1, &value
[i
], tx
));
4667 zap_length(os
, object
, hc
[i
], &zl_intsize
, &zl_ints
));
4668 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4669 ASSERT3U(zl_ints
, ==, 1);
4671 for (i
= 0; i
< 2; i
++) {
4672 VERIFY3U(0, ==, zap_remove(os
, object
, hc
[i
], tx
));
4677 * Generate a buch of random entries.
4679 ints
= MAX(ZTEST_ZAP_MIN_INTS
, object
% ZTEST_ZAP_MAX_INTS
);
4681 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
4682 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
4683 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
4684 bzero(value
, sizeof (value
));
4688 * If these zap entries already exist, validate their contents.
4690 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
4692 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4693 ASSERT3U(zl_ints
, ==, 1);
4695 VERIFY(zap_lookup(os
, object
, txgname
, zl_intsize
,
4696 zl_ints
, &last_txg
) == 0);
4698 VERIFY(zap_length(os
, object
, propname
, &zl_intsize
,
4701 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4702 ASSERT3U(zl_ints
, ==, ints
);
4704 VERIFY(zap_lookup(os
, object
, propname
, zl_intsize
,
4705 zl_ints
, value
) == 0);
4707 for (i
= 0; i
< ints
; i
++) {
4708 ASSERT3U(value
[i
], ==, last_txg
+ object
+ i
);
4711 ASSERT3U(error
, ==, ENOENT
);
4715 * Atomically update two entries in our zap object.
4716 * The first is named txg_%llu, and contains the txg
4717 * in which the property was last updated. The second
4718 * is named prop_%llu, and the nth element of its value
4719 * should be txg + object + n.
4721 tx
= dmu_tx_create(os
);
4722 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4723 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4728 fatal(0, "zap future leak: old %llu new %llu", last_txg
, txg
);
4730 for (i
= 0; i
< ints
; i
++)
4731 value
[i
] = txg
+ object
+ i
;
4733 VERIFY3U(0, ==, zap_update(os
, object
, txgname
, sizeof (uint64_t),
4735 VERIFY3U(0, ==, zap_update(os
, object
, propname
, sizeof (uint64_t),
4741 * Remove a random pair of entries.
4743 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
4744 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
4745 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
4747 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
4749 if (error
== ENOENT
)
4754 tx
= dmu_tx_create(os
);
4755 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4756 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4759 VERIFY3U(0, ==, zap_remove(os
, object
, txgname
, tx
));
4760 VERIFY3U(0, ==, zap_remove(os
, object
, propname
, tx
));
4763 umem_free(od
, sizeof (ztest_od_t
));
4767 * Testcase to test the upgrading of a microzap to fatzap.
4770 ztest_fzap(ztest_ds_t
*zd
, uint64_t id
)
4772 objset_t
*os
= zd
->zd_os
;
4774 uint64_t object
, txg
;
4777 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4778 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_ZAP_OTHER
, 0, 0, 0);
4780 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
),
4781 !ztest_random(2)) != 0)
4783 object
= od
->od_object
;
4786 * Add entries to this ZAP and make sure it spills over
4787 * and gets upgraded to a fatzap. Also, since we are adding
4788 * 2050 entries we should see ptrtbl growth and leaf-block split.
4790 for (i
= 0; i
< 2050; i
++) {
4791 char name
[ZFS_MAX_DATASET_NAME_LEN
];
4796 (void) snprintf(name
, sizeof (name
), "fzap-%llu-%llu",
4797 (u_longlong_t
)id
, (u_longlong_t
)value
);
4799 tx
= dmu_tx_create(os
);
4800 dmu_tx_hold_zap(tx
, object
, B_TRUE
, name
);
4801 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4804 error
= zap_add(os
, object
, name
, sizeof (uint64_t), 1,
4806 ASSERT(error
== 0 || error
== EEXIST
);
4810 umem_free(od
, sizeof (ztest_od_t
));
4815 ztest_zap_parallel(ztest_ds_t
*zd
, uint64_t id
)
4817 objset_t
*os
= zd
->zd_os
;
4819 uint64_t txg
, object
, count
, wsize
, wc
, zl_wsize
, zl_wc
;
4821 int i
, namelen
, error
;
4822 int micro
= ztest_random(2);
4823 char name
[20], string_value
[20];
4826 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4827 ztest_od_init(od
, ID_PARALLEL
, FTAG
, micro
, DMU_OT_ZAP_OTHER
, 0, 0, 0);
4829 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
4830 umem_free(od
, sizeof (ztest_od_t
));
4834 object
= od
->od_object
;
4837 * Generate a random name of the form 'xxx.....' where each
4838 * x is a random printable character and the dots are dots.
4839 * There are 94 such characters, and the name length goes from
4840 * 6 to 20, so there are 94^3 * 15 = 12,458,760 possible names.
4842 namelen
= ztest_random(sizeof (name
) - 5) + 5 + 1;
4844 for (i
= 0; i
< 3; i
++)
4845 name
[i
] = '!' + ztest_random('~' - '!' + 1);
4846 for (; i
< namelen
- 1; i
++)
4850 if ((namelen
& 1) || micro
) {
4851 wsize
= sizeof (txg
);
4857 data
= string_value
;
4861 VERIFY0(zap_count(os
, object
, &count
));
4862 ASSERT(count
!= -1ULL);
4865 * Select an operation: length, lookup, add, update, remove.
4867 i
= ztest_random(5);
4870 tx
= dmu_tx_create(os
);
4871 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4872 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4874 umem_free(od
, sizeof (ztest_od_t
));
4877 bcopy(name
, string_value
, namelen
);
4881 bzero(string_value
, namelen
);
4887 error
= zap_length(os
, object
, name
, &zl_wsize
, &zl_wc
);
4889 ASSERT3U(wsize
, ==, zl_wsize
);
4890 ASSERT3U(wc
, ==, zl_wc
);
4892 ASSERT3U(error
, ==, ENOENT
);
4897 error
= zap_lookup(os
, object
, name
, wsize
, wc
, data
);
4899 if (data
== string_value
&&
4900 bcmp(name
, data
, namelen
) != 0)
4901 fatal(0, "name '%s' != val '%s' len %d",
4902 name
, data
, namelen
);
4904 ASSERT3U(error
, ==, ENOENT
);
4909 error
= zap_add(os
, object
, name
, wsize
, wc
, data
, tx
);
4910 ASSERT(error
== 0 || error
== EEXIST
);
4914 VERIFY(zap_update(os
, object
, name
, wsize
, wc
, data
, tx
) == 0);
4918 error
= zap_remove(os
, object
, name
, tx
);
4919 ASSERT(error
== 0 || error
== ENOENT
);
4926 umem_free(od
, sizeof (ztest_od_t
));
4930 * Commit callback data.
4932 typedef struct ztest_cb_data
{
4933 list_node_t zcd_node
;
4935 int zcd_expected_err
;
4936 boolean_t zcd_added
;
4937 boolean_t zcd_called
;
4941 /* This is the actual commit callback function */
4943 ztest_commit_callback(void *arg
, int error
)
4945 ztest_cb_data_t
*data
= arg
;
4946 uint64_t synced_txg
;
4948 VERIFY(data
!= NULL
);
4949 VERIFY3S(data
->zcd_expected_err
, ==, error
);
4950 VERIFY(!data
->zcd_called
);
4952 synced_txg
= spa_last_synced_txg(data
->zcd_spa
);
4953 if (data
->zcd_txg
> synced_txg
)
4954 fatal(0, "commit callback of txg %" PRIu64
" called prematurely"
4955 ", last synced txg = %" PRIu64
"\n", data
->zcd_txg
,
4958 data
->zcd_called
= B_TRUE
;
4960 if (error
== ECANCELED
) {
4961 ASSERT0(data
->zcd_txg
);
4962 ASSERT(!data
->zcd_added
);
4965 * The private callback data should be destroyed here, but
4966 * since we are going to check the zcd_called field after
4967 * dmu_tx_abort(), we will destroy it there.
4972 ASSERT(data
->zcd_added
);
4973 ASSERT3U(data
->zcd_txg
, !=, 0);
4975 (void) mutex_enter(&zcl
.zcl_callbacks_lock
);
4977 /* See if this cb was called more quickly */
4978 if ((synced_txg
- data
->zcd_txg
) < zc_min_txg_delay
)
4979 zc_min_txg_delay
= synced_txg
- data
->zcd_txg
;
4981 /* Remove our callback from the list */
4982 list_remove(&zcl
.zcl_callbacks
, data
);
4984 (void) mutex_exit(&zcl
.zcl_callbacks_lock
);
4986 umem_free(data
, sizeof (ztest_cb_data_t
));
4989 /* Allocate and initialize callback data structure */
4990 static ztest_cb_data_t
*
4991 ztest_create_cb_data(objset_t
*os
, uint64_t txg
)
4993 ztest_cb_data_t
*cb_data
;
4995 cb_data
= umem_zalloc(sizeof (ztest_cb_data_t
), UMEM_NOFAIL
);
4997 cb_data
->zcd_txg
= txg
;
4998 cb_data
->zcd_spa
= dmu_objset_spa(os
);
4999 list_link_init(&cb_data
->zcd_node
);
5005 * Commit callback test.
5008 ztest_dmu_commit_callbacks(ztest_ds_t
*zd
, uint64_t id
)
5010 objset_t
*os
= zd
->zd_os
;
5013 ztest_cb_data_t
*cb_data
[3], *tmp_cb
;
5014 uint64_t old_txg
, txg
;
5017 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
5018 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0, 0);
5020 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
5021 umem_free(od
, sizeof (ztest_od_t
));
5025 tx
= dmu_tx_create(os
);
5027 cb_data
[0] = ztest_create_cb_data(os
, 0);
5028 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[0]);
5030 dmu_tx_hold_write(tx
, od
->od_object
, 0, sizeof (uint64_t));
5032 /* Every once in a while, abort the transaction on purpose */
5033 if (ztest_random(100) == 0)
5037 error
= dmu_tx_assign(tx
, TXG_NOWAIT
);
5039 txg
= error
? 0 : dmu_tx_get_txg(tx
);
5041 cb_data
[0]->zcd_txg
= txg
;
5042 cb_data
[1] = ztest_create_cb_data(os
, txg
);
5043 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[1]);
5047 * It's not a strict requirement to call the registered
5048 * callbacks from inside dmu_tx_abort(), but that's what
5049 * it's supposed to happen in the current implementation
5050 * so we will check for that.
5052 for (i
= 0; i
< 2; i
++) {
5053 cb_data
[i
]->zcd_expected_err
= ECANCELED
;
5054 VERIFY(!cb_data
[i
]->zcd_called
);
5059 for (i
= 0; i
< 2; i
++) {
5060 VERIFY(cb_data
[i
]->zcd_called
);
5061 umem_free(cb_data
[i
], sizeof (ztest_cb_data_t
));
5064 umem_free(od
, sizeof (ztest_od_t
));
5068 cb_data
[2] = ztest_create_cb_data(os
, txg
);
5069 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[2]);
5072 * Read existing data to make sure there isn't a future leak.
5074 VERIFY(0 == dmu_read(os
, od
->od_object
, 0, sizeof (uint64_t),
5075 &old_txg
, DMU_READ_PREFETCH
));
5078 fatal(0, "future leak: got %" PRIu64
", open txg is %" PRIu64
,
5081 dmu_write(os
, od
->od_object
, 0, sizeof (uint64_t), &txg
, tx
);
5083 (void) mutex_enter(&zcl
.zcl_callbacks_lock
);
5086 * Since commit callbacks don't have any ordering requirement and since
5087 * it is theoretically possible for a commit callback to be called
5088 * after an arbitrary amount of time has elapsed since its txg has been
5089 * synced, it is difficult to reliably determine whether a commit
5090 * callback hasn't been called due to high load or due to a flawed
5093 * In practice, we will assume that if after a certain number of txgs a
5094 * commit callback hasn't been called, then most likely there's an
5095 * implementation bug..
5097 tmp_cb
= list_head(&zcl
.zcl_callbacks
);
5098 if (tmp_cb
!= NULL
&&
5099 tmp_cb
->zcd_txg
+ ZTEST_COMMIT_CB_THRESH
< txg
) {
5100 fatal(0, "Commit callback threshold exceeded, oldest txg: %"
5101 PRIu64
", open txg: %" PRIu64
"\n", tmp_cb
->zcd_txg
, txg
);
5105 * Let's find the place to insert our callbacks.
5107 * Even though the list is ordered by txg, it is possible for the
5108 * insertion point to not be the end because our txg may already be
5109 * quiescing at this point and other callbacks in the open txg
5110 * (from other objsets) may have sneaked in.
5112 tmp_cb
= list_tail(&zcl
.zcl_callbacks
);
5113 while (tmp_cb
!= NULL
&& tmp_cb
->zcd_txg
> txg
)
5114 tmp_cb
= list_prev(&zcl
.zcl_callbacks
, tmp_cb
);
5116 /* Add the 3 callbacks to the list */
5117 for (i
= 0; i
< 3; i
++) {
5119 list_insert_head(&zcl
.zcl_callbacks
, cb_data
[i
]);
5121 list_insert_after(&zcl
.zcl_callbacks
, tmp_cb
,
5124 cb_data
[i
]->zcd_added
= B_TRUE
;
5125 VERIFY(!cb_data
[i
]->zcd_called
);
5127 tmp_cb
= cb_data
[i
];
5132 (void) mutex_exit(&zcl
.zcl_callbacks_lock
);
5136 umem_free(od
, sizeof (ztest_od_t
));
5140 * Visit each object in the dataset. Verify that its properties
5141 * are consistent what was stored in the block tag when it was created,
5142 * and that its unused bonus buffer space has not been overwritten.
5146 ztest_verify_dnode_bt(ztest_ds_t
*zd
, uint64_t id
)
5148 objset_t
*os
= zd
->zd_os
;
5152 for (obj
= 0; err
== 0; err
= dmu_object_next(os
, &obj
, FALSE
, 0)) {
5153 ztest_block_tag_t
*bt
= NULL
;
5154 dmu_object_info_t doi
;
5157 if (dmu_bonus_hold(os
, obj
, FTAG
, &db
) != 0)
5160 dmu_object_info_from_db(db
, &doi
);
5161 if (doi
.doi_bonus_size
>= sizeof (*bt
))
5162 bt
= ztest_bt_bonus(db
);
5164 if (bt
&& bt
->bt_magic
== BT_MAGIC
) {
5165 ztest_bt_verify(bt
, os
, obj
, doi
.doi_dnodesize
,
5166 bt
->bt_offset
, bt
->bt_gen
, bt
->bt_txg
,
5168 ztest_verify_unused_bonus(db
, bt
, obj
, os
, bt
->bt_gen
);
5171 dmu_buf_rele(db
, FTAG
);
5177 ztest_dsl_prop_get_set(ztest_ds_t
*zd
, uint64_t id
)
5179 zfs_prop_t proplist
[] = {
5181 ZFS_PROP_COMPRESSION
,
5187 (void) rw_rdlock(&ztest_name_lock
);
5189 for (p
= 0; p
< sizeof (proplist
) / sizeof (proplist
[0]); p
++)
5190 (void) ztest_dsl_prop_set_uint64(zd
->zd_name
, proplist
[p
],
5191 ztest_random_dsl_prop(proplist
[p
]), (int)ztest_random(2));
5193 VERIFY0(ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_RECORDSIZE
,
5194 ztest_random_blocksize(), (int)ztest_random(2)));
5196 (void) rw_unlock(&ztest_name_lock
);
5201 ztest_spa_prop_get_set(ztest_ds_t
*zd
, uint64_t id
)
5203 nvlist_t
*props
= NULL
;
5205 (void) rw_rdlock(&ztest_name_lock
);
5207 (void) ztest_spa_prop_set_uint64(ZPOOL_PROP_DEDUPDITTO
,
5208 ZIO_DEDUPDITTO_MIN
+ ztest_random(ZIO_DEDUPDITTO_MIN
));
5210 VERIFY0(spa_prop_get(ztest_spa
, &props
));
5212 if (ztest_opts
.zo_verbose
>= 6)
5213 dump_nvlist(props
, 4);
5217 (void) rw_unlock(&ztest_name_lock
);
5221 user_release_one(const char *snapname
, const char *holdname
)
5223 nvlist_t
*snaps
, *holds
;
5226 snaps
= fnvlist_alloc();
5227 holds
= fnvlist_alloc();
5228 fnvlist_add_boolean(holds
, holdname
);
5229 fnvlist_add_nvlist(snaps
, snapname
, holds
);
5230 fnvlist_free(holds
);
5231 error
= dsl_dataset_user_release(snaps
, NULL
);
5232 fnvlist_free(snaps
);
5237 * Test snapshot hold/release and deferred destroy.
5240 ztest_dmu_snapshot_hold(ztest_ds_t
*zd
, uint64_t id
)
5243 objset_t
*os
= zd
->zd_os
;
5247 char clonename
[100];
5249 char osname
[ZFS_MAX_DATASET_NAME_LEN
];
5252 (void) rw_rdlock(&ztest_name_lock
);
5254 dmu_objset_name(os
, osname
);
5256 (void) snprintf(snapname
, sizeof (snapname
), "sh1_%llu",
5258 (void) snprintf(fullname
, sizeof (fullname
), "%s@%s", osname
, snapname
);
5259 (void) snprintf(clonename
, sizeof (clonename
),
5260 "%s/ch1_%llu", osname
, (u_longlong_t
)id
);
5261 (void) snprintf(tag
, sizeof (tag
), "tag_%llu", (u_longlong_t
)id
);
5264 * Clean up from any previous run.
5266 error
= dsl_destroy_head(clonename
);
5267 if (error
!= ENOENT
)
5269 error
= user_release_one(fullname
, tag
);
5270 if (error
!= ESRCH
&& error
!= ENOENT
)
5272 error
= dsl_destroy_snapshot(fullname
, B_FALSE
);
5273 if (error
!= ENOENT
)
5277 * Create snapshot, clone it, mark snap for deferred destroy,
5278 * destroy clone, verify snap was also destroyed.
5280 error
= dmu_objset_snapshot_one(osname
, snapname
);
5282 if (error
== ENOSPC
) {
5283 ztest_record_enospc("dmu_objset_snapshot");
5286 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname
, error
);
5289 error
= dmu_objset_clone(clonename
, fullname
);
5291 if (error
== ENOSPC
) {
5292 ztest_record_enospc("dmu_objset_clone");
5295 fatal(0, "dmu_objset_clone(%s) = %d", clonename
, error
);
5298 error
= dsl_destroy_snapshot(fullname
, B_TRUE
);
5300 fatal(0, "dsl_destroy_snapshot(%s, B_TRUE) = %d",
5304 error
= dsl_destroy_head(clonename
);
5306 fatal(0, "dsl_destroy_head(%s) = %d", clonename
, error
);
5308 error
= dmu_objset_hold(fullname
, FTAG
, &origin
);
5309 if (error
!= ENOENT
)
5310 fatal(0, "dmu_objset_hold(%s) = %d", fullname
, error
);
5313 * Create snapshot, add temporary hold, verify that we can't
5314 * destroy a held snapshot, mark for deferred destroy,
5315 * release hold, verify snapshot was destroyed.
5317 error
= dmu_objset_snapshot_one(osname
, snapname
);
5319 if (error
== ENOSPC
) {
5320 ztest_record_enospc("dmu_objset_snapshot");
5323 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname
, error
);
5326 holds
= fnvlist_alloc();
5327 fnvlist_add_string(holds
, fullname
, tag
);
5328 error
= dsl_dataset_user_hold(holds
, 0, NULL
);
5329 fnvlist_free(holds
);
5331 if (error
== ENOSPC
) {
5332 ztest_record_enospc("dsl_dataset_user_hold");
5335 fatal(0, "dsl_dataset_user_hold(%s, %s) = %u",
5336 fullname
, tag
, error
);
5339 error
= dsl_destroy_snapshot(fullname
, B_FALSE
);
5340 if (error
!= EBUSY
) {
5341 fatal(0, "dsl_destroy_snapshot(%s, B_FALSE) = %d",
5345 error
= dsl_destroy_snapshot(fullname
, B_TRUE
);
5347 fatal(0, "dsl_destroy_snapshot(%s, B_TRUE) = %d",
5351 error
= user_release_one(fullname
, tag
);
5353 fatal(0, "user_release_one(%s, %s) = %d", fullname
, tag
, error
);
5355 VERIFY3U(dmu_objset_hold(fullname
, FTAG
, &origin
), ==, ENOENT
);
5358 (void) rw_unlock(&ztest_name_lock
);
5362 * Inject random faults into the on-disk data.
5366 ztest_fault_inject(ztest_ds_t
*zd
, uint64_t id
)
5368 ztest_shared_t
*zs
= ztest_shared
;
5369 spa_t
*spa
= ztest_spa
;
5373 uint64_t bad
= 0x1990c0ffeedecadeull
;
5378 int bshift
= SPA_MAXBLOCKSHIFT
+ 2;
5384 boolean_t islog
= B_FALSE
;
5386 path0
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
5387 pathrand
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
5389 mutex_enter(&ztest_vdev_lock
);
5390 maxfaults
= MAXFAULTS();
5391 leaves
= MAX(zs
->zs_mirrors
, 1) * ztest_opts
.zo_raidz
;
5392 mirror_save
= zs
->zs_mirrors
;
5393 mutex_exit(&ztest_vdev_lock
);
5395 ASSERT(leaves
>= 1);
5398 * Grab the name lock as reader. There are some operations
5399 * which don't like to have their vdevs changed while
5400 * they are in progress (i.e. spa_change_guid). Those
5401 * operations will have grabbed the name lock as writer.
5403 (void) rw_rdlock(&ztest_name_lock
);
5406 * We need SCL_STATE here because we're going to look at vd0->vdev_tsd.
5408 spa_config_enter(spa
, SCL_STATE
, FTAG
, RW_READER
);
5410 if (ztest_random(2) == 0) {
5412 * Inject errors on a normal data device or slog device.
5414 top
= ztest_random_vdev_top(spa
, B_TRUE
);
5415 leaf
= ztest_random(leaves
) + zs
->zs_splits
;
5418 * Generate paths to the first leaf in this top-level vdev,
5419 * and to the random leaf we selected. We'll induce transient
5420 * write failures and random online/offline activity on leaf 0,
5421 * and we'll write random garbage to the randomly chosen leaf.
5423 (void) snprintf(path0
, MAXPATHLEN
, ztest_dev_template
,
5424 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
5425 top
* leaves
+ zs
->zs_splits
);
5426 (void) snprintf(pathrand
, MAXPATHLEN
, ztest_dev_template
,
5427 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
5428 top
* leaves
+ leaf
);
5430 vd0
= vdev_lookup_by_path(spa
->spa_root_vdev
, path0
);
5431 if (vd0
!= NULL
&& vd0
->vdev_top
->vdev_islog
)
5435 * If the top-level vdev needs to be resilvered
5436 * then we only allow faults on the device that is
5439 if (vd0
!= NULL
&& maxfaults
!= 1 &&
5440 (!vdev_resilver_needed(vd0
->vdev_top
, NULL
, NULL
) ||
5441 vd0
->vdev_resilver_txg
!= 0)) {
5443 * Make vd0 explicitly claim to be unreadable,
5444 * or unwriteable, or reach behind its back
5445 * and close the underlying fd. We can do this if
5446 * maxfaults == 0 because we'll fail and reexecute,
5447 * and we can do it if maxfaults >= 2 because we'll
5448 * have enough redundancy. If maxfaults == 1, the
5449 * combination of this with injection of random data
5450 * corruption below exceeds the pool's fault tolerance.
5452 vdev_file_t
*vf
= vd0
->vdev_tsd
;
5454 if (vf
!= NULL
&& ztest_random(3) == 0) {
5455 (void) close(vf
->vf_vnode
->v_fd
);
5456 vf
->vf_vnode
->v_fd
= -1;
5457 } else if (ztest_random(2) == 0) {
5458 vd0
->vdev_cant_read
= B_TRUE
;
5460 vd0
->vdev_cant_write
= B_TRUE
;
5462 guid0
= vd0
->vdev_guid
;
5466 * Inject errors on an l2cache device.
5468 spa_aux_vdev_t
*sav
= &spa
->spa_l2cache
;
5470 if (sav
->sav_count
== 0) {
5471 spa_config_exit(spa
, SCL_STATE
, FTAG
);
5472 (void) rw_unlock(&ztest_name_lock
);
5475 vd0
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)];
5476 guid0
= vd0
->vdev_guid
;
5477 (void) strcpy(path0
, vd0
->vdev_path
);
5478 (void) strcpy(pathrand
, vd0
->vdev_path
);
5482 maxfaults
= INT_MAX
; /* no limit on cache devices */
5485 spa_config_exit(spa
, SCL_STATE
, FTAG
);
5486 (void) rw_unlock(&ztest_name_lock
);
5489 * If we can tolerate two or more faults, or we're dealing
5490 * with a slog, randomly online/offline vd0.
5492 if ((maxfaults
>= 2 || islog
) && guid0
!= 0) {
5493 if (ztest_random(10) < 6) {
5494 int flags
= (ztest_random(2) == 0 ?
5495 ZFS_OFFLINE_TEMPORARY
: 0);
5498 * We have to grab the zs_name_lock as writer to
5499 * prevent a race between offlining a slog and
5500 * destroying a dataset. Offlining the slog will
5501 * grab a reference on the dataset which may cause
5502 * dsl_destroy_head() to fail with EBUSY thus
5503 * leaving the dataset in an inconsistent state.
5506 (void) rw_wrlock(&ztest_name_lock
);
5508 VERIFY(vdev_offline(spa
, guid0
, flags
) != EBUSY
);
5511 (void) rw_unlock(&ztest_name_lock
);
5514 * Ideally we would like to be able to randomly
5515 * call vdev_[on|off]line without holding locks
5516 * to force unpredictable failures but the side
5517 * effects of vdev_[on|off]line prevent us from
5518 * doing so. We grab the ztest_vdev_lock here to
5519 * prevent a race between injection testing and
5522 mutex_enter(&ztest_vdev_lock
);
5523 (void) vdev_online(spa
, guid0
, 0, NULL
);
5524 mutex_exit(&ztest_vdev_lock
);
5532 * We have at least single-fault tolerance, so inject data corruption.
5534 fd
= open(pathrand
, O_RDWR
);
5536 if (fd
== -1) /* we hit a gap in the device namespace */
5539 fsize
= lseek(fd
, 0, SEEK_END
);
5541 while (--iters
!= 0) {
5543 * The offset must be chosen carefully to ensure that
5544 * we do not inject a given logical block with errors
5545 * on two different leaf devices, because ZFS can not
5546 * tolerate that (if maxfaults==1).
5548 * We divide each leaf into chunks of size
5549 * (# leaves * SPA_MAXBLOCKSIZE * 4). Within each chunk
5550 * there is a series of ranges to which we can inject errors.
5551 * Each range can accept errors on only a single leaf vdev.
5552 * The error injection ranges are separated by ranges
5553 * which we will not inject errors on any device (DMZs).
5554 * Each DMZ must be large enough such that a single block
5555 * can not straddle it, so that a single block can not be
5556 * a target in two different injection ranges (on different
5559 * For example, with 3 leaves, each chunk looks like:
5560 * 0 to 32M: injection range for leaf 0
5561 * 32M to 64M: DMZ - no injection allowed
5562 * 64M to 96M: injection range for leaf 1
5563 * 96M to 128M: DMZ - no injection allowed
5564 * 128M to 160M: injection range for leaf 2
5565 * 160M to 192M: DMZ - no injection allowed
5567 offset
= ztest_random(fsize
/ (leaves
<< bshift
)) *
5568 (leaves
<< bshift
) + (leaf
<< bshift
) +
5569 (ztest_random(1ULL << (bshift
- 1)) & -8ULL);
5572 * Only allow damage to the labels at one end of the vdev.
5574 * If all labels are damaged, the device will be totally
5575 * inaccessible, which will result in loss of data,
5576 * because we also damage (parts of) the other side of
5579 * Additionally, we will always have both an even and an
5580 * odd label, so that we can handle crashes in the
5581 * middle of vdev_config_sync().
5583 if ((leaf
& 1) == 0 && offset
< VDEV_LABEL_START_SIZE
)
5587 * The two end labels are stored at the "end" of the disk, but
5588 * the end of the disk (vdev_psize) is aligned to
5589 * sizeof (vdev_label_t).
5591 uint64_t psize
= P2ALIGN(fsize
, sizeof (vdev_label_t
));
5592 if ((leaf
& 1) == 1 &&
5593 offset
+ sizeof (bad
) > psize
- VDEV_LABEL_END_SIZE
)
5596 mutex_enter(&ztest_vdev_lock
);
5597 if (mirror_save
!= zs
->zs_mirrors
) {
5598 mutex_exit(&ztest_vdev_lock
);
5603 if (pwrite(fd
, &bad
, sizeof (bad
), offset
) != sizeof (bad
))
5604 fatal(1, "can't inject bad word at 0x%llx in %s",
5607 mutex_exit(&ztest_vdev_lock
);
5609 if (ztest_opts
.zo_verbose
>= 7)
5610 (void) printf("injected bad word into %s,"
5611 " offset 0x%llx\n", pathrand
, (u_longlong_t
)offset
);
5616 umem_free(path0
, MAXPATHLEN
);
5617 umem_free(pathrand
, MAXPATHLEN
);
5621 * Verify that DDT repair works as expected.
5624 ztest_ddt_repair(ztest_ds_t
*zd
, uint64_t id
)
5626 ztest_shared_t
*zs
= ztest_shared
;
5627 spa_t
*spa
= ztest_spa
;
5628 objset_t
*os
= zd
->zd_os
;
5630 uint64_t object
, blocksize
, txg
, pattern
, psize
;
5631 enum zio_checksum checksum
= spa_dedup_checksum(spa
);
5636 int copies
= 2 * ZIO_DEDUPDITTO_MIN
;
5639 blocksize
= ztest_random_blocksize();
5640 blocksize
= MIN(blocksize
, 2048); /* because we write so many */
5642 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
5643 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0, 0);
5645 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
5646 umem_free(od
, sizeof (ztest_od_t
));
5651 * Take the name lock as writer to prevent anyone else from changing
5652 * the pool and dataset properies we need to maintain during this test.
5654 (void) rw_wrlock(&ztest_name_lock
);
5656 if (ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_DEDUP
, checksum
,
5658 ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_COPIES
, 1,
5660 (void) rw_unlock(&ztest_name_lock
);
5661 umem_free(od
, sizeof (ztest_od_t
));
5665 dmu_objset_stats_t dds
;
5666 dsl_pool_config_enter(dmu_objset_pool(os
), FTAG
);
5667 dmu_objset_fast_stat(os
, &dds
);
5668 dsl_pool_config_exit(dmu_objset_pool(os
), FTAG
);
5670 object
= od
[0].od_object
;
5671 blocksize
= od
[0].od_blocksize
;
5672 pattern
= zs
->zs_guid
^ dds
.dds_guid
;
5674 ASSERT(object
!= 0);
5676 tx
= dmu_tx_create(os
);
5677 dmu_tx_hold_write(tx
, object
, 0, copies
* blocksize
);
5678 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
5680 (void) rw_unlock(&ztest_name_lock
);
5681 umem_free(od
, sizeof (ztest_od_t
));
5686 * Write all the copies of our block.
5688 for (i
= 0; i
< copies
; i
++) {
5689 uint64_t offset
= i
* blocksize
;
5690 int error
= dmu_buf_hold(os
, object
, offset
, FTAG
, &db
,
5691 DMU_READ_NO_PREFETCH
);
5693 fatal(B_FALSE
, "dmu_buf_hold(%p, %llu, %llu) = %u",
5694 os
, (long long)object
, (long long) offset
, error
);
5696 ASSERT(db
->db_offset
== offset
);
5697 ASSERT(db
->db_size
== blocksize
);
5698 ASSERT(ztest_pattern_match(db
->db_data
, db
->db_size
, pattern
) ||
5699 ztest_pattern_match(db
->db_data
, db
->db_size
, 0ULL));
5700 dmu_buf_will_fill(db
, tx
);
5701 ztest_pattern_set(db
->db_data
, db
->db_size
, pattern
);
5702 dmu_buf_rele(db
, FTAG
);
5706 txg_wait_synced(spa_get_dsl(spa
), txg
);
5709 * Find out what block we got.
5711 VERIFY0(dmu_buf_hold(os
, object
, 0, FTAG
, &db
,
5712 DMU_READ_NO_PREFETCH
));
5713 blk
= *((dmu_buf_impl_t
*)db
)->db_blkptr
;
5714 dmu_buf_rele(db
, FTAG
);
5717 * Damage the block. Dedup-ditto will save us when we read it later.
5719 psize
= BP_GET_PSIZE(&blk
);
5720 abd
= abd_alloc_linear(psize
, B_TRUE
);
5721 ztest_pattern_set(abd_to_buf(abd
), psize
, ~pattern
);
5723 (void) zio_wait(zio_rewrite(NULL
, spa
, 0, &blk
,
5724 abd
, psize
, NULL
, NULL
, ZIO_PRIORITY_SYNC_WRITE
,
5725 ZIO_FLAG_CANFAIL
| ZIO_FLAG_INDUCE_DAMAGE
, NULL
));
5729 (void) rw_unlock(&ztest_name_lock
);
5730 umem_free(od
, sizeof (ztest_od_t
));
5738 ztest_scrub(ztest_ds_t
*zd
, uint64_t id
)
5740 spa_t
*spa
= ztest_spa
;
5742 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5743 (void) poll(NULL
, 0, 100); /* wait a moment, then force a restart */
5744 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5748 * Change the guid for the pool.
5752 ztest_reguid(ztest_ds_t
*zd
, uint64_t id
)
5754 spa_t
*spa
= ztest_spa
;
5755 uint64_t orig
, load
;
5758 if (ztest_opts
.zo_mmp_test
)
5761 orig
= spa_guid(spa
);
5762 load
= spa_load_guid(spa
);
5764 (void) rw_wrlock(&ztest_name_lock
);
5765 error
= spa_change_guid(spa
);
5766 (void) rw_unlock(&ztest_name_lock
);
5771 if (ztest_opts
.zo_verbose
>= 4) {
5772 (void) printf("Changed guid old %llu -> %llu\n",
5773 (u_longlong_t
)orig
, (u_longlong_t
)spa_guid(spa
));
5776 VERIFY3U(orig
, !=, spa_guid(spa
));
5777 VERIFY3U(load
, ==, spa_load_guid(spa
));
5781 * Rename the pool to a different name and then rename it back.
5785 ztest_spa_rename(ztest_ds_t
*zd
, uint64_t id
)
5787 char *oldname
, *newname
;
5790 if (ztest_opts
.zo_mmp_test
)
5793 (void) rw_wrlock(&ztest_name_lock
);
5795 oldname
= ztest_opts
.zo_pool
;
5796 newname
= umem_alloc(strlen(oldname
) + 5, UMEM_NOFAIL
);
5797 (void) strcpy(newname
, oldname
);
5798 (void) strcat(newname
, "_tmp");
5803 VERIFY3U(0, ==, spa_rename(oldname
, newname
));
5806 * Try to open it under the old name, which shouldn't exist
5808 VERIFY3U(ENOENT
, ==, spa_open(oldname
, &spa
, FTAG
));
5811 * Open it under the new name and make sure it's still the same spa_t.
5813 VERIFY3U(0, ==, spa_open(newname
, &spa
, FTAG
));
5815 ASSERT(spa
== ztest_spa
);
5816 spa_close(spa
, FTAG
);
5819 * Rename it back to the original
5821 VERIFY3U(0, ==, spa_rename(newname
, oldname
));
5824 * Make sure it can still be opened
5826 VERIFY3U(0, ==, spa_open(oldname
, &spa
, FTAG
));
5828 ASSERT(spa
== ztest_spa
);
5829 spa_close(spa
, FTAG
);
5831 umem_free(newname
, strlen(newname
) + 1);
5833 (void) rw_unlock(&ztest_name_lock
);
5837 ztest_fletcher(ztest_ds_t
*zd
, uint64_t id
)
5839 hrtime_t end
= gethrtime() + NANOSEC
;
5841 while (gethrtime() <= end
) {
5842 int run_count
= 100;
5844 struct abd
*abd_data
, *abd_meta
;
5849 zio_cksum_t zc_ref_byteswap
;
5851 size
= ztest_random_blocksize();
5853 buf
= umem_alloc(size
, UMEM_NOFAIL
);
5854 abd_data
= abd_alloc(size
, B_FALSE
);
5855 abd_meta
= abd_alloc(size
, B_TRUE
);
5857 for (i
= 0, ptr
= buf
; i
< size
/ sizeof (*ptr
); i
++, ptr
++)
5858 *ptr
= ztest_random(UINT_MAX
);
5860 abd_copy_from_buf_off(abd_data
, buf
, 0, size
);
5861 abd_copy_from_buf_off(abd_meta
, buf
, 0, size
);
5863 VERIFY0(fletcher_4_impl_set("scalar"));
5864 fletcher_4_native(buf
, size
, NULL
, &zc_ref
);
5865 fletcher_4_byteswap(buf
, size
, NULL
, &zc_ref_byteswap
);
5867 VERIFY0(fletcher_4_impl_set("cycle"));
5868 while (run_count
-- > 0) {
5870 zio_cksum_t zc_byteswap
;
5872 fletcher_4_byteswap(buf
, size
, NULL
, &zc_byteswap
);
5873 fletcher_4_native(buf
, size
, NULL
, &zc
);
5875 VERIFY0(bcmp(&zc
, &zc_ref
, sizeof (zc
)));
5876 VERIFY0(bcmp(&zc_byteswap
, &zc_ref_byteswap
,
5877 sizeof (zc_byteswap
)));
5879 /* Test ABD - data */
5880 abd_fletcher_4_byteswap(abd_data
, size
, NULL
,
5882 abd_fletcher_4_native(abd_data
, size
, NULL
, &zc
);
5884 VERIFY0(bcmp(&zc
, &zc_ref
, sizeof (zc
)));
5885 VERIFY0(bcmp(&zc_byteswap
, &zc_ref_byteswap
,
5886 sizeof (zc_byteswap
)));
5888 /* Test ABD - metadata */
5889 abd_fletcher_4_byteswap(abd_meta
, size
, NULL
,
5891 abd_fletcher_4_native(abd_meta
, size
, NULL
, &zc
);
5893 VERIFY0(bcmp(&zc
, &zc_ref
, sizeof (zc
)));
5894 VERIFY0(bcmp(&zc_byteswap
, &zc_ref_byteswap
,
5895 sizeof (zc_byteswap
)));
5899 umem_free(buf
, size
);
5906 ztest_fletcher_incr(ztest_ds_t
*zd
, uint64_t id
)
5913 zio_cksum_t zc_ref_bswap
;
5915 hrtime_t end
= gethrtime() + NANOSEC
;
5917 while (gethrtime() <= end
) {
5918 int run_count
= 100;
5920 size
= ztest_random_blocksize();
5921 buf
= umem_alloc(size
, UMEM_NOFAIL
);
5923 for (i
= 0, ptr
= buf
; i
< size
/ sizeof (*ptr
); i
++, ptr
++)
5924 *ptr
= ztest_random(UINT_MAX
);
5926 VERIFY0(fletcher_4_impl_set("scalar"));
5927 fletcher_4_native(buf
, size
, NULL
, &zc_ref
);
5928 fletcher_4_byteswap(buf
, size
, NULL
, &zc_ref_bswap
);
5930 VERIFY0(fletcher_4_impl_set("cycle"));
5932 while (run_count
-- > 0) {
5934 zio_cksum_t zc_bswap
;
5937 ZIO_SET_CHECKSUM(&zc
, 0, 0, 0, 0);
5938 ZIO_SET_CHECKSUM(&zc_bswap
, 0, 0, 0, 0);
5940 while (pos
< size
) {
5941 size_t inc
= 64 * ztest_random(size
/ 67);
5942 /* sometimes add few bytes to test non-simd */
5943 if (ztest_random(100) < 10)
5944 inc
+= P2ALIGN(ztest_random(64),
5947 if (inc
> (size
- pos
))
5950 fletcher_4_incremental_native(buf
+ pos
, inc
,
5952 fletcher_4_incremental_byteswap(buf
+ pos
, inc
,
5958 VERIFY3U(pos
, ==, size
);
5960 VERIFY(ZIO_CHECKSUM_EQUAL(zc
, zc_ref
));
5961 VERIFY(ZIO_CHECKSUM_EQUAL(zc_bswap
, zc_ref_bswap
));
5964 * verify if incremental on the whole buffer is
5965 * equivalent to non-incremental version
5967 ZIO_SET_CHECKSUM(&zc
, 0, 0, 0, 0);
5968 ZIO_SET_CHECKSUM(&zc_bswap
, 0, 0, 0, 0);
5970 fletcher_4_incremental_native(buf
, size
, &zc
);
5971 fletcher_4_incremental_byteswap(buf
, size
, &zc_bswap
);
5973 VERIFY(ZIO_CHECKSUM_EQUAL(zc
, zc_ref
));
5974 VERIFY(ZIO_CHECKSUM_EQUAL(zc_bswap
, zc_ref_bswap
));
5977 umem_free(buf
, size
);
5982 ztest_check_path(char *path
)
5985 /* return true on success */
5986 return (!stat(path
, &s
));
5990 ztest_get_zdb_bin(char *bin
, int len
)
5994 * Try to use ZDB_PATH and in-tree zdb path. If not successful, just
5995 * let popen to search through PATH.
5997 if ((zdb_path
= getenv("ZDB_PATH"))) {
5998 strlcpy(bin
, zdb_path
, len
); /* In env */
5999 if (!ztest_check_path(bin
)) {
6000 ztest_dump_core
= 0;
6001 fatal(1, "invalid ZDB_PATH '%s'", bin
);
6006 VERIFY(realpath(getexecname(), bin
) != NULL
);
6007 if (strstr(bin
, "/ztest/")) {
6008 strstr(bin
, "/ztest/")[0] = '\0'; /* In-tree */
6009 strcat(bin
, "/zdb/zdb");
6010 if (ztest_check_path(bin
))
6017 * Verify pool integrity by running zdb.
6020 ztest_run_zdb(char *pool
)
6026 const int len
= MAXPATHLEN
+ MAXNAMELEN
+ 20;
6029 bin
= umem_alloc(len
, UMEM_NOFAIL
);
6030 zdb
= umem_alloc(len
, UMEM_NOFAIL
);
6031 zbuf
= umem_alloc(1024, UMEM_NOFAIL
);
6033 ztest_get_zdb_bin(bin
, len
);
6036 "%s -bcc%s%s -G -d -U %s %s",
6038 ztest_opts
.zo_verbose
>= 3 ? "s" : "",
6039 ztest_opts
.zo_verbose
>= 4 ? "v" : "",
6043 if (ztest_opts
.zo_verbose
>= 5)
6044 (void) printf("Executing %s\n", strstr(zdb
, "zdb "));
6046 fp
= popen(zdb
, "r");
6048 while (fgets(zbuf
, 1024, fp
) != NULL
)
6049 if (ztest_opts
.zo_verbose
>= 3)
6050 (void) printf("%s", zbuf
);
6052 status
= pclose(fp
);
6057 ztest_dump_core
= 0;
6058 if (WIFEXITED(status
))
6059 fatal(0, "'%s' exit code %d", zdb
, WEXITSTATUS(status
));
6061 fatal(0, "'%s' died with signal %d", zdb
, WTERMSIG(status
));
6063 umem_free(bin
, len
);
6064 umem_free(zdb
, len
);
6065 umem_free(zbuf
, 1024);
6069 ztest_walk_pool_directory(char *header
)
6073 if (ztest_opts
.zo_verbose
>= 6)
6074 (void) printf("%s\n", header
);
6076 mutex_enter(&spa_namespace_lock
);
6077 while ((spa
= spa_next(spa
)) != NULL
)
6078 if (ztest_opts
.zo_verbose
>= 6)
6079 (void) printf("\t%s\n", spa_name(spa
));
6080 mutex_exit(&spa_namespace_lock
);
6084 ztest_spa_import_export(char *oldname
, char *newname
)
6086 nvlist_t
*config
, *newconfig
;
6091 if (ztest_opts
.zo_verbose
>= 4) {
6092 (void) printf("import/export: old = %s, new = %s\n",
6097 * Clean up from previous runs.
6099 (void) spa_destroy(newname
);
6102 * Get the pool's configuration and guid.
6104 VERIFY3U(0, ==, spa_open(oldname
, &spa
, FTAG
));
6107 * Kick off a scrub to tickle scrub/export races.
6109 if (ztest_random(2) == 0)
6110 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
6112 pool_guid
= spa_guid(spa
);
6113 spa_close(spa
, FTAG
);
6115 ztest_walk_pool_directory("pools before export");
6120 VERIFY3U(0, ==, spa_export(oldname
, &config
, B_FALSE
, B_FALSE
));
6122 ztest_walk_pool_directory("pools after export");
6127 newconfig
= spa_tryimport(config
);
6128 ASSERT(newconfig
!= NULL
);
6129 nvlist_free(newconfig
);
6132 * Import it under the new name.
6134 error
= spa_import(newname
, config
, NULL
, 0);
6136 dump_nvlist(config
, 0);
6137 fatal(B_FALSE
, "couldn't import pool %s as %s: error %u",
6138 oldname
, newname
, error
);
6141 ztest_walk_pool_directory("pools after import");
6144 * Try to import it again -- should fail with EEXIST.
6146 VERIFY3U(EEXIST
, ==, spa_import(newname
, config
, NULL
, 0));
6149 * Try to import it under a different name -- should fail with EEXIST.
6151 VERIFY3U(EEXIST
, ==, spa_import(oldname
, config
, NULL
, 0));
6154 * Verify that the pool is no longer visible under the old name.
6156 VERIFY3U(ENOENT
, ==, spa_open(oldname
, &spa
, FTAG
));
6159 * Verify that we can open and close the pool using the new name.
6161 VERIFY3U(0, ==, spa_open(newname
, &spa
, FTAG
));
6162 ASSERT(pool_guid
== spa_guid(spa
));
6163 spa_close(spa
, FTAG
);
6165 nvlist_free(config
);
6169 ztest_resume(spa_t
*spa
)
6171 if (spa_suspended(spa
) && ztest_opts
.zo_verbose
>= 6)
6172 (void) printf("resuming from suspended state\n");
6173 spa_vdev_state_enter(spa
, SCL_NONE
);
6174 vdev_clear(spa
, NULL
);
6175 (void) spa_vdev_state_exit(spa
, NULL
, 0);
6176 (void) zio_resume(spa
);
6180 ztest_resume_thread(void *arg
)
6184 while (!ztest_exiting
) {
6185 if (spa_suspended(spa
))
6187 (void) poll(NULL
, 0, 100);
6190 * Periodically change the zfs_compressed_arc_enabled setting.
6192 if (ztest_random(10) == 0)
6193 zfs_compressed_arc_enabled
= ztest_random(2);
6196 * Periodically change the zfs_abd_scatter_enabled setting.
6198 if (ztest_random(10) == 0)
6199 zfs_abd_scatter_enabled
= ztest_random(2);
6209 ztest_deadman_alarm(int sig
)
6211 fatal(0, "failed to complete within %d seconds of deadline", GRACE
);
6216 ztest_execute(int test
, ztest_info_t
*zi
, uint64_t id
)
6218 ztest_ds_t
*zd
= &ztest_ds
[id
% ztest_opts
.zo_datasets
];
6219 ztest_shared_callstate_t
*zc
= ZTEST_GET_SHARED_CALLSTATE(test
);
6220 hrtime_t functime
= gethrtime();
6223 for (i
= 0; i
< zi
->zi_iters
; i
++)
6224 zi
->zi_func(zd
, id
);
6226 functime
= gethrtime() - functime
;
6228 atomic_add_64(&zc
->zc_count
, 1);
6229 atomic_add_64(&zc
->zc_time
, functime
);
6231 if (ztest_opts
.zo_verbose
>= 4)
6232 (void) printf("%6.2f sec in %s\n",
6233 (double)functime
/ NANOSEC
, zi
->zi_funcname
);
6237 ztest_thread(void *arg
)
6240 uint64_t id
= (uintptr_t)arg
;
6241 ztest_shared_t
*zs
= ztest_shared
;
6245 ztest_shared_callstate_t
*zc
;
6247 while ((now
= gethrtime()) < zs
->zs_thread_stop
) {
6249 * See if it's time to force a crash.
6251 if (now
> zs
->zs_thread_kill
)
6255 * If we're getting ENOSPC with some regularity, stop.
6257 if (zs
->zs_enospc_count
> 10)
6261 * Pick a random function to execute.
6263 rand
= ztest_random(ZTEST_FUNCS
);
6264 zi
= &ztest_info
[rand
];
6265 zc
= ZTEST_GET_SHARED_CALLSTATE(rand
);
6266 call_next
= zc
->zc_next
;
6268 if (now
>= call_next
&&
6269 atomic_cas_64(&zc
->zc_next
, call_next
, call_next
+
6270 ztest_random(2 * zi
->zi_interval
[0] + 1)) == call_next
) {
6271 ztest_execute(rand
, zi
, id
);
6279 ztest_dataset_name(char *dsname
, char *pool
, int d
)
6281 (void) snprintf(dsname
, ZFS_MAX_DATASET_NAME_LEN
, "%s/ds_%d", pool
, d
);
6285 ztest_dataset_destroy(int d
)
6287 char name
[ZFS_MAX_DATASET_NAME_LEN
];
6290 ztest_dataset_name(name
, ztest_opts
.zo_pool
, d
);
6292 if (ztest_opts
.zo_verbose
>= 3)
6293 (void) printf("Destroying %s to free up space\n", name
);
6296 * Cleanup any non-standard clones and snapshots. In general,
6297 * ztest thread t operates on dataset (t % zopt_datasets),
6298 * so there may be more than one thing to clean up.
6300 for (t
= d
; t
< ztest_opts
.zo_threads
;
6301 t
+= ztest_opts
.zo_datasets
)
6302 ztest_dsl_dataset_cleanup(name
, t
);
6304 (void) dmu_objset_find(name
, ztest_objset_destroy_cb
, NULL
,
6305 DS_FIND_SNAPSHOTS
| DS_FIND_CHILDREN
);
6309 ztest_dataset_dirobj_verify(ztest_ds_t
*zd
)
6311 uint64_t usedobjs
, dirobjs
, scratch
;
6314 * ZTEST_DIROBJ is the object directory for the entire dataset.
6315 * Therefore, the number of objects in use should equal the
6316 * number of ZTEST_DIROBJ entries, +1 for ZTEST_DIROBJ itself.
6317 * If not, we have an object leak.
6319 * Note that we can only check this in ztest_dataset_open(),
6320 * when the open-context and syncing-context values agree.
6321 * That's because zap_count() returns the open-context value,
6322 * while dmu_objset_space() returns the rootbp fill count.
6324 VERIFY3U(0, ==, zap_count(zd
->zd_os
, ZTEST_DIROBJ
, &dirobjs
));
6325 dmu_objset_space(zd
->zd_os
, &scratch
, &scratch
, &usedobjs
, &scratch
);
6326 ASSERT3U(dirobjs
+ 1, ==, usedobjs
);
6330 ztest_dataset_open(int d
)
6332 ztest_ds_t
*zd
= &ztest_ds
[d
];
6333 uint64_t committed_seq
= ZTEST_GET_SHARED_DS(d
)->zd_seq
;
6336 char name
[ZFS_MAX_DATASET_NAME_LEN
];
6339 ztest_dataset_name(name
, ztest_opts
.zo_pool
, d
);
6341 (void) rw_rdlock(&ztest_name_lock
);
6343 error
= ztest_dataset_create(name
);
6344 if (error
== ENOSPC
) {
6345 (void) rw_unlock(&ztest_name_lock
);
6346 ztest_record_enospc(FTAG
);
6349 ASSERT(error
== 0 || error
== EEXIST
);
6351 VERIFY0(ztest_dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
,
6353 (void) rw_unlock(&ztest_name_lock
);
6355 ztest_zd_init(zd
, ZTEST_GET_SHARED_DS(d
), os
);
6357 zilog
= zd
->zd_zilog
;
6359 if (zilog
->zl_header
->zh_claim_lr_seq
!= 0 &&
6360 zilog
->zl_header
->zh_claim_lr_seq
< committed_seq
)
6361 fatal(0, "missing log records: claimed %llu < committed %llu",
6362 zilog
->zl_header
->zh_claim_lr_seq
, committed_seq
);
6364 ztest_dataset_dirobj_verify(zd
);
6366 zil_replay(os
, zd
, ztest_replay_vector
);
6368 ztest_dataset_dirobj_verify(zd
);
6370 if (ztest_opts
.zo_verbose
>= 6)
6371 (void) printf("%s replay %llu blocks, %llu records, seq %llu\n",
6373 (u_longlong_t
)zilog
->zl_parse_blk_count
,
6374 (u_longlong_t
)zilog
->zl_parse_lr_count
,
6375 (u_longlong_t
)zilog
->zl_replaying_seq
);
6377 zilog
= zil_open(os
, ztest_get_data
);
6379 if (zilog
->zl_replaying_seq
!= 0 &&
6380 zilog
->zl_replaying_seq
< committed_seq
)
6381 fatal(0, "missing log records: replayed %llu < committed %llu",
6382 zilog
->zl_replaying_seq
, committed_seq
);
6388 ztest_dataset_close(int d
)
6390 ztest_ds_t
*zd
= &ztest_ds
[d
];
6392 zil_close(zd
->zd_zilog
);
6393 txg_wait_synced(spa_get_dsl(zd
->zd_os
->os_spa
), 0);
6394 dmu_objset_disown(zd
->zd_os
, B_TRUE
, zd
);
6400 * Kick off threads to run tests on all datasets in parallel.
6403 ztest_run(ztest_shared_t
*zs
)
6407 kthread_t
*resume_thread
;
6408 kthread_t
**run_threads
;
6413 ztest_exiting
= B_FALSE
;
6416 * Initialize parent/child shared state.
6418 mutex_init(&ztest_vdev_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
6419 VERIFY(rwlock_init(&ztest_name_lock
, USYNC_THREAD
, NULL
) == 0);
6421 zs
->zs_thread_start
= gethrtime();
6422 zs
->zs_thread_stop
=
6423 zs
->zs_thread_start
+ ztest_opts
.zo_passtime
* NANOSEC
;
6424 zs
->zs_thread_stop
= MIN(zs
->zs_thread_stop
, zs
->zs_proc_stop
);
6425 zs
->zs_thread_kill
= zs
->zs_thread_stop
;
6426 if (ztest_random(100) < ztest_opts
.zo_killrate
) {
6427 zs
->zs_thread_kill
-=
6428 ztest_random(ztest_opts
.zo_passtime
* NANOSEC
);
6431 mutex_init(&zcl
.zcl_callbacks_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
6433 list_create(&zcl
.zcl_callbacks
, sizeof (ztest_cb_data_t
),
6434 offsetof(ztest_cb_data_t
, zcd_node
));
6439 kernel_init(FREAD
| FWRITE
);
6440 VERIFY0(spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
6441 spa
->spa_debug
= B_TRUE
;
6442 metaslab_preload_limit
= ztest_random(20) + 1;
6445 dmu_objset_stats_t dds
;
6446 VERIFY0(ztest_dmu_objset_own(ztest_opts
.zo_pool
,
6447 DMU_OST_ANY
, B_TRUE
, B_TRUE
, FTAG
, &os
));
6448 dsl_pool_config_enter(dmu_objset_pool(os
), FTAG
);
6449 dmu_objset_fast_stat(os
, &dds
);
6450 dsl_pool_config_exit(dmu_objset_pool(os
), FTAG
);
6451 zs
->zs_guid
= dds
.dds_guid
;
6452 dmu_objset_disown(os
, B_TRUE
, FTAG
);
6454 spa
->spa_dedup_ditto
= 2 * ZIO_DEDUPDITTO_MIN
;
6457 * We don't expect the pool to suspend unless maxfaults == 0,
6458 * in which case ztest_fault_inject() temporarily takes away
6459 * the only valid replica.
6461 if (MAXFAULTS() == 0)
6462 spa
->spa_failmode
= ZIO_FAILURE_MODE_WAIT
;
6464 spa
->spa_failmode
= ZIO_FAILURE_MODE_PANIC
;
6467 * Create a thread to periodically resume suspended I/O.
6469 resume_thread
= thread_create(NULL
, 0, ztest_resume_thread
,
6470 spa
, 0, NULL
, TS_RUN
| TS_JOINABLE
, defclsyspri
);
6474 * Set a deadman alarm to abort() if we hang.
6476 signal(SIGALRM
, ztest_deadman_alarm
);
6477 alarm((zs
->zs_thread_stop
- zs
->zs_thread_start
) / NANOSEC
+ GRACE
);
6481 * Verify that we can safely inquire about about any object,
6482 * whether it's allocated or not. To make it interesting,
6483 * we probe a 5-wide window around each power of two.
6484 * This hits all edge cases, including zero and the max.
6486 for (t
= 0; t
< 64; t
++) {
6487 for (d
= -5; d
<= 5; d
++) {
6488 error
= dmu_object_info(spa
->spa_meta_objset
,
6489 (1ULL << t
) + d
, NULL
);
6490 ASSERT(error
== 0 || error
== ENOENT
||
6496 * If we got any ENOSPC errors on the previous run, destroy something.
6498 if (zs
->zs_enospc_count
!= 0) {
6499 int d
= ztest_random(ztest_opts
.zo_datasets
);
6500 ztest_dataset_destroy(d
);
6502 zs
->zs_enospc_count
= 0;
6504 run_threads
= umem_zalloc(ztest_opts
.zo_threads
* sizeof (kthread_t
*),
6507 if (ztest_opts
.zo_verbose
>= 4)
6508 (void) printf("starting main threads...\n");
6511 * Kick off all the tests that run in parallel.
6513 for (t
= 0; t
< ztest_opts
.zo_threads
; t
++) {
6514 if (t
< ztest_opts
.zo_datasets
&& ztest_dataset_open(t
) != 0) {
6515 umem_free(run_threads
, ztest_opts
.zo_threads
*
6516 sizeof (kthread_t
*));
6520 run_threads
[t
] = thread_create(NULL
, 0, ztest_thread
,
6521 (void *)(uintptr_t)t
, 0, NULL
, TS_RUN
| TS_JOINABLE
,
6526 * Wait for all of the tests to complete. We go in reverse order
6527 * so we don't close datasets while threads are still using them.
6529 for (t
= ztest_opts
.zo_threads
- 1; t
>= 0; t
--) {
6530 VERIFY0(thread_join(run_threads
[t
]));
6531 if (t
< ztest_opts
.zo_datasets
)
6532 ztest_dataset_close(t
);
6535 txg_wait_synced(spa_get_dsl(spa
), 0);
6537 zs
->zs_alloc
= metaslab_class_get_alloc(spa_normal_class(spa
));
6538 zs
->zs_space
= metaslab_class_get_space(spa_normal_class(spa
));
6540 umem_free(run_threads
, ztest_opts
.zo_threads
* sizeof (kthread_t
*));
6542 /* Kill the resume thread */
6543 ztest_exiting
= B_TRUE
;
6544 VERIFY0(thread_join(resume_thread
));
6548 * Right before closing the pool, kick off a bunch of async I/O;
6549 * spa_close() should wait for it to complete.
6551 for (object
= 1; object
< 50; object
++) {
6552 dmu_prefetch(spa
->spa_meta_objset
, object
, 0, 0, 1ULL << 20,
6553 ZIO_PRIORITY_SYNC_READ
);
6556 /* Verify that at least one commit cb was called in a timely fashion */
6557 if (zc_cb_counter
>= ZTEST_COMMIT_CB_MIN_REG
)
6558 VERIFY0(zc_min_txg_delay
);
6560 spa_close(spa
, FTAG
);
6563 * Verify that we can loop over all pools.
6565 mutex_enter(&spa_namespace_lock
);
6566 for (spa
= spa_next(NULL
); spa
!= NULL
; spa
= spa_next(spa
))
6567 if (ztest_opts
.zo_verbose
> 3)
6568 (void) printf("spa_next: found %s\n", spa_name(spa
));
6569 mutex_exit(&spa_namespace_lock
);
6572 * Verify that we can export the pool and reimport it under a
6575 if ((ztest_random(2) == 0) && !ztest_opts
.zo_mmp_test
) {
6576 char name
[ZFS_MAX_DATASET_NAME_LEN
];
6577 (void) snprintf(name
, sizeof (name
), "%s_import",
6578 ztest_opts
.zo_pool
);
6579 ztest_spa_import_export(ztest_opts
.zo_pool
, name
);
6580 ztest_spa_import_export(name
, ztest_opts
.zo_pool
);
6585 list_destroy(&zcl
.zcl_callbacks
);
6586 mutex_destroy(&zcl
.zcl_callbacks_lock
);
6587 (void) rwlock_destroy(&ztest_name_lock
);
6588 mutex_destroy(&ztest_vdev_lock
);
6594 ztest_ds_t
*zd
= &ztest_ds
[0];
6598 if (ztest_opts
.zo_verbose
>= 3)
6599 (void) printf("testing spa_freeze()...\n");
6601 kernel_init(FREAD
| FWRITE
);
6602 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
6603 VERIFY3U(0, ==, ztest_dataset_open(0));
6604 spa
->spa_debug
= B_TRUE
;
6608 * Force the first log block to be transactionally allocated.
6609 * We have to do this before we freeze the pool -- otherwise
6610 * the log chain won't be anchored.
6612 while (BP_IS_HOLE(&zd
->zd_zilog
->zl_header
->zh_log
)) {
6613 ztest_dmu_object_alloc_free(zd
, 0);
6614 zil_commit(zd
->zd_zilog
, 0);
6617 txg_wait_synced(spa_get_dsl(spa
), 0);
6620 * Freeze the pool. This stops spa_sync() from doing anything,
6621 * so that the only way to record changes from now on is the ZIL.
6626 * Because it is hard to predict how much space a write will actually
6627 * require beforehand, we leave ourselves some fudge space to write over
6630 uint64_t capacity
= metaslab_class_get_space(spa_normal_class(spa
)) / 2;
6633 * Run tests that generate log records but don't alter the pool config
6634 * or depend on DSL sync tasks (snapshots, objset create/destroy, etc).
6635 * We do a txg_wait_synced() after each iteration to force the txg
6636 * to increase well beyond the last synced value in the uberblock.
6637 * The ZIL should be OK with that.
6639 * Run a random number of times less than zo_maxloops and ensure we do
6640 * not run out of space on the pool.
6642 while (ztest_random(10) != 0 &&
6643 numloops
++ < ztest_opts
.zo_maxloops
&&
6644 metaslab_class_get_alloc(spa_normal_class(spa
)) < capacity
) {
6646 ztest_od_init(&od
, 0, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0, 0);
6647 VERIFY0(ztest_object_init(zd
, &od
, sizeof (od
), B_FALSE
));
6648 ztest_io(zd
, od
.od_object
,
6649 ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
6650 txg_wait_synced(spa_get_dsl(spa
), 0);
6654 * Commit all of the changes we just generated.
6656 zil_commit(zd
->zd_zilog
, 0);
6657 txg_wait_synced(spa_get_dsl(spa
), 0);
6660 * Close our dataset and close the pool.
6662 ztest_dataset_close(0);
6663 spa_close(spa
, FTAG
);
6667 * Open and close the pool and dataset to induce log replay.
6669 kernel_init(FREAD
| FWRITE
);
6670 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
6671 ASSERT(spa_freeze_txg(spa
) == UINT64_MAX
);
6672 VERIFY3U(0, ==, ztest_dataset_open(0));
6673 spa
->spa_debug
= B_TRUE
;
6675 txg_wait_synced(spa_get_dsl(spa
), 0);
6676 ztest_dataset_close(0);
6677 ztest_reguid(NULL
, 0);
6679 spa_close(spa
, FTAG
);
6684 print_time(hrtime_t t
, char *timebuf
)
6686 hrtime_t s
= t
/ NANOSEC
;
6687 hrtime_t m
= s
/ 60;
6688 hrtime_t h
= m
/ 60;
6689 hrtime_t d
= h
/ 24;
6698 (void) sprintf(timebuf
,
6699 "%llud%02lluh%02llum%02llus", d
, h
, m
, s
);
6701 (void) sprintf(timebuf
, "%lluh%02llum%02llus", h
, m
, s
);
6703 (void) sprintf(timebuf
, "%llum%02llus", m
, s
);
6705 (void) sprintf(timebuf
, "%llus", s
);
6709 make_random_props(void)
6713 VERIFY(nvlist_alloc(&props
, NV_UNIQUE_NAME
, 0) == 0);
6714 if (ztest_random(2) == 0)
6716 VERIFY(nvlist_add_uint64(props
, "autoreplace", 1) == 0);
6722 * Import a storage pool with the given name.
6725 ztest_import(ztest_shared_t
*zs
)
6727 libzfs_handle_t
*hdl
;
6728 importargs_t args
= { 0 };
6730 nvlist_t
*cfg
= NULL
;
6732 char *searchdirs
[nsearch
];
6733 char *name
= ztest_opts
.zo_pool
;
6734 int flags
= ZFS_IMPORT_MISSING_LOG
;
6737 mutex_init(&ztest_vdev_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
6738 VERIFY(rwlock_init(&ztest_name_lock
, USYNC_THREAD
, NULL
) == 0);
6740 kernel_init(FREAD
| FWRITE
);
6741 hdl
= libzfs_init();
6743 searchdirs
[0] = ztest_opts
.zo_dir
;
6744 args
.paths
= nsearch
;
6745 args
.path
= searchdirs
;
6746 args
.can_be_active
= B_FALSE
;
6748 error
= zpool_tryimport(hdl
, name
, &cfg
, &args
);
6750 (void) fatal(0, "No pools found\n");
6752 VERIFY0(spa_import(name
, cfg
, NULL
, flags
));
6753 VERIFY0(spa_open(name
, &spa
, FTAG
));
6754 zs
->zs_metaslab_sz
=
6755 1ULL << spa
->spa_root_vdev
->vdev_child
[0]->vdev_ms_shift
;
6756 spa_close(spa
, FTAG
);
6761 if (!ztest_opts
.zo_mmp_test
) {
6762 ztest_run_zdb(ztest_opts
.zo_pool
);
6764 ztest_run_zdb(ztest_opts
.zo_pool
);
6767 (void) rwlock_destroy(&ztest_name_lock
);
6768 mutex_destroy(&ztest_vdev_lock
);
6772 * Create a storage pool with the given name and initial vdev size.
6773 * Then test spa_freeze() functionality.
6776 ztest_init(ztest_shared_t
*zs
)
6779 nvlist_t
*nvroot
, *props
;
6782 mutex_init(&ztest_vdev_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
6783 VERIFY(rwlock_init(&ztest_name_lock
, USYNC_THREAD
, NULL
) == 0);
6785 kernel_init(FREAD
| FWRITE
);
6788 * Create the storage pool.
6790 (void) spa_destroy(ztest_opts
.zo_pool
);
6791 ztest_shared
->zs_vdev_next_leaf
= 0;
6793 zs
->zs_mirrors
= ztest_opts
.zo_mirrors
;
6794 nvroot
= make_vdev_root(NULL
, NULL
, NULL
, ztest_opts
.zo_vdev_size
, 0,
6795 0, ztest_opts
.zo_raidz
, zs
->zs_mirrors
, 1);
6796 props
= make_random_props();
6797 for (i
= 0; i
< SPA_FEATURES
; i
++) {
6799 VERIFY3S(-1, !=, asprintf(&buf
, "feature@%s",
6800 spa_feature_table
[i
].fi_uname
));
6801 VERIFY3U(0, ==, nvlist_add_uint64(props
, buf
, 0));
6805 spa_create(ztest_opts
.zo_pool
, nvroot
, props
, NULL
, NULL
));
6806 nvlist_free(nvroot
);
6809 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
6810 zs
->zs_metaslab_sz
=
6811 1ULL << spa
->spa_root_vdev
->vdev_child
[0]->vdev_ms_shift
;
6812 spa_close(spa
, FTAG
);
6816 if (!ztest_opts
.zo_mmp_test
) {
6817 ztest_run_zdb(ztest_opts
.zo_pool
);
6819 ztest_run_zdb(ztest_opts
.zo_pool
);
6822 (void) rwlock_destroy(&ztest_name_lock
);
6823 mutex_destroy(&ztest_vdev_lock
);
6829 static char ztest_name_data
[] = "/tmp/ztest.data.XXXXXX";
6831 ztest_fd_data
= mkstemp(ztest_name_data
);
6832 ASSERT3S(ztest_fd_data
, >=, 0);
6833 (void) unlink(ztest_name_data
);
6837 shared_data_size(ztest_shared_hdr_t
*hdr
)
6841 size
= hdr
->zh_hdr_size
;
6842 size
+= hdr
->zh_opts_size
;
6843 size
+= hdr
->zh_size
;
6844 size
+= hdr
->zh_stats_size
* hdr
->zh_stats_count
;
6845 size
+= hdr
->zh_ds_size
* hdr
->zh_ds_count
;
6854 ztest_shared_hdr_t
*hdr
;
6856 hdr
= (void *)mmap(0, P2ROUNDUP(sizeof (*hdr
), getpagesize()),
6857 PROT_READ
| PROT_WRITE
, MAP_SHARED
, ztest_fd_data
, 0);
6858 ASSERT(hdr
!= MAP_FAILED
);
6860 VERIFY3U(0, ==, ftruncate(ztest_fd_data
, sizeof (ztest_shared_hdr_t
)));
6862 hdr
->zh_hdr_size
= sizeof (ztest_shared_hdr_t
);
6863 hdr
->zh_opts_size
= sizeof (ztest_shared_opts_t
);
6864 hdr
->zh_size
= sizeof (ztest_shared_t
);
6865 hdr
->zh_stats_size
= sizeof (ztest_shared_callstate_t
);
6866 hdr
->zh_stats_count
= ZTEST_FUNCS
;
6867 hdr
->zh_ds_size
= sizeof (ztest_shared_ds_t
);
6868 hdr
->zh_ds_count
= ztest_opts
.zo_datasets
;
6870 size
= shared_data_size(hdr
);
6871 VERIFY3U(0, ==, ftruncate(ztest_fd_data
, size
));
6873 (void) munmap((caddr_t
)hdr
, P2ROUNDUP(sizeof (*hdr
), getpagesize()));
6880 ztest_shared_hdr_t
*hdr
;
6883 hdr
= (void *)mmap(0, P2ROUNDUP(sizeof (*hdr
), getpagesize()),
6884 PROT_READ
, MAP_SHARED
, ztest_fd_data
, 0);
6885 ASSERT(hdr
!= MAP_FAILED
);
6887 size
= shared_data_size(hdr
);
6889 (void) munmap((caddr_t
)hdr
, P2ROUNDUP(sizeof (*hdr
), getpagesize()));
6890 hdr
= ztest_shared_hdr
= (void *)mmap(0, P2ROUNDUP(size
, getpagesize()),
6891 PROT_READ
| PROT_WRITE
, MAP_SHARED
, ztest_fd_data
, 0);
6892 ASSERT(hdr
!= MAP_FAILED
);
6893 buf
= (uint8_t *)hdr
;
6895 offset
= hdr
->zh_hdr_size
;
6896 ztest_shared_opts
= (void *)&buf
[offset
];
6897 offset
+= hdr
->zh_opts_size
;
6898 ztest_shared
= (void *)&buf
[offset
];
6899 offset
+= hdr
->zh_size
;
6900 ztest_shared_callstate
= (void *)&buf
[offset
];
6901 offset
+= hdr
->zh_stats_size
* hdr
->zh_stats_count
;
6902 ztest_shared_ds
= (void *)&buf
[offset
];
6906 exec_child(char *cmd
, char *libpath
, boolean_t ignorekill
, int *statusp
)
6910 char *cmdbuf
= NULL
;
6915 cmdbuf
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
6916 (void) strlcpy(cmdbuf
, getexecname(), MAXPATHLEN
);
6921 fatal(1, "fork failed");
6923 if (pid
== 0) { /* child */
6924 char *emptyargv
[2] = { cmd
, NULL
};
6925 char fd_data_str
[12];
6927 struct rlimit rl
= { 1024, 1024 };
6928 (void) setrlimit(RLIMIT_NOFILE
, &rl
);
6930 (void) close(ztest_fd_rand
);
6931 VERIFY(11 >= snprintf(fd_data_str
, 12, "%d", ztest_fd_data
));
6932 VERIFY(0 == setenv("ZTEST_FD_DATA", fd_data_str
, 1));
6934 (void) enable_extended_FILE_stdio(-1, -1);
6935 if (libpath
!= NULL
)
6936 VERIFY(0 == setenv("LD_LIBRARY_PATH", libpath
, 1));
6937 (void) execv(cmd
, emptyargv
);
6938 ztest_dump_core
= B_FALSE
;
6939 fatal(B_TRUE
, "exec failed: %s", cmd
);
6942 if (cmdbuf
!= NULL
) {
6943 umem_free(cmdbuf
, MAXPATHLEN
);
6947 while (waitpid(pid
, &status
, 0) != pid
)
6949 if (statusp
!= NULL
)
6952 if (WIFEXITED(status
)) {
6953 if (WEXITSTATUS(status
) != 0) {
6954 (void) fprintf(stderr
, "child exited with code %d\n",
6955 WEXITSTATUS(status
));
6959 } else if (WIFSIGNALED(status
)) {
6960 if (!ignorekill
|| WTERMSIG(status
) != SIGKILL
) {
6961 (void) fprintf(stderr
, "child died with signal %d\n",
6967 (void) fprintf(stderr
, "something strange happened to child\n");
6974 ztest_run_init(void)
6978 ztest_shared_t
*zs
= ztest_shared
;
6981 * Blow away any existing copy of zpool.cache
6983 (void) remove(spa_config_path
);
6985 if (ztest_opts
.zo_init
== 0) {
6986 if (ztest_opts
.zo_verbose
>= 1)
6987 (void) printf("Importing pool %s\n",
6988 ztest_opts
.zo_pool
);
6994 * Create and initialize our storage pool.
6996 for (i
= 1; i
<= ztest_opts
.zo_init
; i
++) {
6997 bzero(zs
, sizeof (ztest_shared_t
));
6998 if (ztest_opts
.zo_verbose
>= 3 &&
6999 ztest_opts
.zo_init
!= 1) {
7000 (void) printf("ztest_init(), pass %d\n", i
);
7007 main(int argc
, char **argv
)
7015 ztest_shared_callstate_t
*zc
;
7022 char *fd_data_str
= getenv("ZTEST_FD_DATA");
7023 struct sigaction action
;
7025 (void) setvbuf(stdout
, NULL
, _IOLBF
, 0);
7027 dprintf_setup(&argc
, argv
);
7029 action
.sa_handler
= sig_handler
;
7030 sigemptyset(&action
.sa_mask
);
7031 action
.sa_flags
= 0;
7033 if (sigaction(SIGSEGV
, &action
, NULL
) < 0) {
7034 (void) fprintf(stderr
, "ztest: cannot catch SIGSEGV: %s.\n",
7039 if (sigaction(SIGABRT
, &action
, NULL
) < 0) {
7040 (void) fprintf(stderr
, "ztest: cannot catch SIGABRT: %s.\n",
7045 ztest_fd_rand
= open("/dev/urandom", O_RDONLY
);
7046 ASSERT3S(ztest_fd_rand
, >=, 0);
7049 process_options(argc
, argv
);
7054 bcopy(&ztest_opts
, ztest_shared_opts
,
7055 sizeof (*ztest_shared_opts
));
7057 ztest_fd_data
= atoi(fd_data_str
);
7059 bcopy(ztest_shared_opts
, &ztest_opts
, sizeof (ztest_opts
));
7061 ASSERT3U(ztest_opts
.zo_datasets
, ==, ztest_shared_hdr
->zh_ds_count
);
7063 /* Override location of zpool.cache */
7064 VERIFY(asprintf((char **)&spa_config_path
, "%s/zpool.cache",
7065 ztest_opts
.zo_dir
) != -1);
7067 ztest_ds
= umem_alloc(ztest_opts
.zo_datasets
* sizeof (ztest_ds_t
),
7072 metaslab_gang_bang
= ztest_opts
.zo_metaslab_gang_bang
;
7073 metaslab_df_alloc_threshold
=
7074 zs
->zs_metaslab_df_alloc_threshold
;
7083 hasalt
= (strlen(ztest_opts
.zo_alt_ztest
) != 0);
7085 if (ztest_opts
.zo_verbose
>= 1) {
7086 (void) printf("%llu vdevs, %d datasets, %d threads,"
7087 " %llu seconds...\n",
7088 (u_longlong_t
)ztest_opts
.zo_vdevs
,
7089 ztest_opts
.zo_datasets
,
7090 ztest_opts
.zo_threads
,
7091 (u_longlong_t
)ztest_opts
.zo_time
);
7094 cmd
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
7095 (void) strlcpy(cmd
, getexecname(), MAXNAMELEN
);
7097 zs
->zs_do_init
= B_TRUE
;
7098 if (strlen(ztest_opts
.zo_alt_ztest
) != 0) {
7099 if (ztest_opts
.zo_verbose
>= 1) {
7100 (void) printf("Executing older ztest for "
7101 "initialization: %s\n", ztest_opts
.zo_alt_ztest
);
7103 VERIFY(!exec_child(ztest_opts
.zo_alt_ztest
,
7104 ztest_opts
.zo_alt_libpath
, B_FALSE
, NULL
));
7106 VERIFY(!exec_child(NULL
, NULL
, B_FALSE
, NULL
));
7108 zs
->zs_do_init
= B_FALSE
;
7110 zs
->zs_proc_start
= gethrtime();
7111 zs
->zs_proc_stop
= zs
->zs_proc_start
+ ztest_opts
.zo_time
* NANOSEC
;
7113 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
7114 zi
= &ztest_info
[f
];
7115 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
7116 if (zs
->zs_proc_start
+ zi
->zi_interval
[0] > zs
->zs_proc_stop
)
7117 zc
->zc_next
= UINT64_MAX
;
7119 zc
->zc_next
= zs
->zs_proc_start
+
7120 ztest_random(2 * zi
->zi_interval
[0] + 1);
7124 * Run the tests in a loop. These tests include fault injection
7125 * to verify that self-healing data works, and forced crashes
7126 * to verify that we never lose on-disk consistency.
7128 while (gethrtime() < zs
->zs_proc_stop
) {
7133 * Initialize the workload counters for each function.
7135 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
7136 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
7141 /* Set the allocation switch size */
7142 zs
->zs_metaslab_df_alloc_threshold
=
7143 ztest_random(zs
->zs_metaslab_sz
/ 4) + 1;
7145 if (!hasalt
|| ztest_random(2) == 0) {
7146 if (hasalt
&& ztest_opts
.zo_verbose
>= 1) {
7147 (void) printf("Executing newer ztest: %s\n",
7151 killed
= exec_child(cmd
, NULL
, B_TRUE
, &status
);
7153 if (hasalt
&& ztest_opts
.zo_verbose
>= 1) {
7154 (void) printf("Executing older ztest: %s\n",
7155 ztest_opts
.zo_alt_ztest
);
7158 killed
= exec_child(ztest_opts
.zo_alt_ztest
,
7159 ztest_opts
.zo_alt_libpath
, B_TRUE
, &status
);
7166 if (ztest_opts
.zo_verbose
>= 1) {
7167 hrtime_t now
= gethrtime();
7169 now
= MIN(now
, zs
->zs_proc_stop
);
7170 print_time(zs
->zs_proc_stop
- now
, timebuf
);
7171 nicenum(zs
->zs_space
, numbuf
);
7173 (void) printf("Pass %3d, %8s, %3llu ENOSPC, "
7174 "%4.1f%% of %5s used, %3.0f%% done, %8s to go\n",
7176 WIFEXITED(status
) ? "Complete" : "SIGKILL",
7177 (u_longlong_t
)zs
->zs_enospc_count
,
7178 100.0 * zs
->zs_alloc
/ zs
->zs_space
,
7180 100.0 * (now
- zs
->zs_proc_start
) /
7181 (ztest_opts
.zo_time
* NANOSEC
), timebuf
);
7184 if (ztest_opts
.zo_verbose
>= 2) {
7185 (void) printf("\nWorkload summary:\n\n");
7186 (void) printf("%7s %9s %s\n",
7187 "Calls", "Time", "Function");
7188 (void) printf("%7s %9s %s\n",
7189 "-----", "----", "--------");
7190 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
7191 zi
= &ztest_info
[f
];
7192 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
7193 print_time(zc
->zc_time
, timebuf
);
7194 (void) printf("%7llu %9s %s\n",
7195 (u_longlong_t
)zc
->zc_count
, timebuf
,
7198 (void) printf("\n");
7202 * It's possible that we killed a child during a rename test,
7203 * in which case we'll have a 'ztest_tmp' pool lying around
7204 * instead of 'ztest'. Do a blind rename in case this happened.
7207 if (spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
) == 0) {
7208 spa_close(spa
, FTAG
);
7210 char tmpname
[ZFS_MAX_DATASET_NAME_LEN
];
7212 kernel_init(FREAD
| FWRITE
);
7213 (void) snprintf(tmpname
, sizeof (tmpname
), "%s_tmp",
7214 ztest_opts
.zo_pool
);
7215 (void) spa_rename(tmpname
, ztest_opts
.zo_pool
);
7219 if (!ztest_opts
.zo_mmp_test
)
7220 ztest_run_zdb(ztest_opts
.zo_pool
);
7223 if (ztest_opts
.zo_verbose
>= 1) {
7225 (void) printf("%d runs of older ztest: %s\n", older
,
7226 ztest_opts
.zo_alt_ztest
);
7227 (void) printf("%d runs of newer ztest: %s\n", newer
,
7230 (void) printf("%d killed, %d completed, %.0f%% kill rate\n",
7231 kills
, iters
- kills
, (100.0 * kills
) / MAX(1, iters
));
7234 umem_free(cmd
, MAXNAMELEN
);