4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 * Copyright (c) 2011, 2015 by Delphix. All rights reserved.
24 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
25 * Copyright (c) 2013 Steven Hartland. All rights reserved.
29 * The objective of this program is to provide a DMU/ZAP/SPA stress test
30 * that runs entirely in userland, is easy to use, and easy to extend.
32 * The overall design of the ztest program is as follows:
34 * (1) For each major functional area (e.g. adding vdevs to a pool,
35 * creating and destroying datasets, reading and writing objects, etc)
36 * we have a simple routine to test that functionality. These
37 * individual routines do not have to do anything "stressful".
39 * (2) We turn these simple functionality tests into a stress test by
40 * running them all in parallel, with as many threads as desired,
41 * and spread across as many datasets, objects, and vdevs as desired.
43 * (3) While all this is happening, we inject faults into the pool to
44 * verify that self-healing data really works.
46 * (4) Every time we open a dataset, we change its checksum and compression
47 * functions. Thus even individual objects vary from block to block
48 * in which checksum they use and whether they're compressed.
50 * (5) To verify that we never lose on-disk consistency after a crash,
51 * we run the entire test in a child of the main process.
52 * At random times, the child self-immolates with a SIGKILL.
53 * This is the software equivalent of pulling the power cord.
54 * The parent then runs the test again, using the existing
55 * storage pool, as many times as desired. If backwards compatibility
56 * testing is enabled ztest will sometimes run the "older" version
57 * of ztest after a SIGKILL.
59 * (6) To verify that we don't have future leaks or temporal incursions,
60 * many of the functional tests record the transaction group number
61 * as part of their data. When reading old data, they verify that
62 * the transaction group number is less than the current, open txg.
63 * If you add a new test, please do this if applicable.
65 * (7) Threads are created with a reduced stack size, for sanity checking.
66 * Therefore, it's important not to allocate huge buffers on the stack.
68 * When run with no arguments, ztest runs for about five minutes and
69 * produces no output if successful. To get a little bit of information,
70 * specify -V. To get more information, specify -VV, and so on.
72 * To turn this into an overnight stress test, use -T to specify run time.
74 * You can ask more more vdevs [-v], datasets [-d], or threads [-t]
75 * to increase the pool capacity, fanout, and overall stress level.
77 * Use the -k option to set the desired frequency of kills.
79 * When ztest invokes itself it passes all relevant information through a
80 * temporary file which is mmap-ed in the child process. This allows shared
81 * memory to survive the exec syscall. The ztest_shared_hdr_t struct is always
82 * stored at offset 0 of this file and contains information on the size and
83 * number of shared structures in the file. The information stored in this file
84 * must remain backwards compatible with older versions of ztest so that
85 * ztest can invoke them during backwards compatibility testing (-B).
88 #include <sys/zfs_context.h>
94 #include <sys/dmu_objset.h>
100 #include <sys/resource.h>
103 #include <sys/zil_impl.h>
104 #include <sys/zfs_rlock.h>
105 #include <sys/vdev_impl.h>
106 #include <sys/vdev_file.h>
107 #include <sys/spa_impl.h>
108 #include <sys/metaslab_impl.h>
109 #include <sys/dsl_prop.h>
110 #include <sys/dsl_dataset.h>
111 #include <sys/dsl_destroy.h>
112 #include <sys/dsl_scan.h>
113 #include <sys/zio_checksum.h>
114 #include <sys/refcount.h>
115 #include <sys/zfeature.h>
116 #include <sys/dsl_userhold.h>
118 #include <stdio_ext.h>
125 #include <sys/fs/zfs.h>
126 #include <zfs_fletcher.h>
127 #include <libnvpair.h>
129 #include <execinfo.h> /* for backtrace() */
132 static int ztest_fd_data
= -1;
133 static int ztest_fd_rand
= -1;
135 typedef struct ztest_shared_hdr
{
136 uint64_t zh_hdr_size
;
137 uint64_t zh_opts_size
;
139 uint64_t zh_stats_size
;
140 uint64_t zh_stats_count
;
142 uint64_t zh_ds_count
;
143 } ztest_shared_hdr_t
;
145 static ztest_shared_hdr_t
*ztest_shared_hdr
;
147 typedef struct ztest_shared_opts
{
148 char zo_pool
[MAXNAMELEN
];
149 char zo_dir
[MAXNAMELEN
];
150 char zo_alt_ztest
[MAXNAMELEN
];
151 char zo_alt_libpath
[MAXNAMELEN
];
153 uint64_t zo_vdevtime
;
161 uint64_t zo_passtime
;
162 uint64_t zo_killrate
;
166 uint64_t zo_maxloops
;
167 uint64_t zo_metaslab_gang_bang
;
168 } ztest_shared_opts_t
;
170 static const ztest_shared_opts_t ztest_opts_defaults
= {
171 .zo_pool
= { 'z', 't', 'e', 's', 't', '\0' },
172 .zo_dir
= { '/', 't', 'm', 'p', '\0' },
173 .zo_alt_ztest
= { '\0' },
174 .zo_alt_libpath
= { '\0' },
176 .zo_ashift
= SPA_MINBLOCKSHIFT
,
179 .zo_raidz_parity
= 1,
180 .zo_vdev_size
= SPA_MINDEVSIZE
* 2,
183 .zo_passtime
= 60, /* 60 seconds */
184 .zo_killrate
= 70, /* 70% kill rate */
187 .zo_time
= 300, /* 5 minutes */
188 .zo_maxloops
= 50, /* max loops during spa_freeze() */
189 .zo_metaslab_gang_bang
= 32 << 10
192 extern uint64_t metaslab_gang_bang
;
193 extern uint64_t metaslab_df_alloc_threshold
;
194 extern int metaslab_preload_limit
;
196 static ztest_shared_opts_t
*ztest_shared_opts
;
197 static ztest_shared_opts_t ztest_opts
;
199 typedef struct ztest_shared_ds
{
203 static ztest_shared_ds_t
*ztest_shared_ds
;
204 #define ZTEST_GET_SHARED_DS(d) (&ztest_shared_ds[d])
206 #define BT_MAGIC 0x123456789abcdefULL
207 #define MAXFAULTS() \
208 (MAX(zs->zs_mirrors, 1) * (ztest_opts.zo_raidz_parity + 1) - 1)
212 ZTEST_IO_WRITE_PATTERN
,
213 ZTEST_IO_WRITE_ZEROES
,
220 typedef struct ztest_block_tag
{
230 typedef struct bufwad
{
248 #define ZTEST_RANGE_LOCKS 64
249 #define ZTEST_OBJECT_LOCKS 64
252 * Object descriptor. Used as a template for object lookup/create/remove.
254 typedef struct ztest_od
{
257 dmu_object_type_t od_type
;
258 dmu_object_type_t od_crtype
;
259 uint64_t od_blocksize
;
260 uint64_t od_crblocksize
;
263 char od_name
[MAXNAMELEN
];
269 typedef struct ztest_ds
{
270 ztest_shared_ds_t
*zd_shared
;
272 rwlock_t zd_zilog_lock
;
274 ztest_od_t
*zd_od
; /* debugging aid */
275 char zd_name
[MAXNAMELEN
];
276 kmutex_t zd_dirobj_lock
;
277 rll_t zd_object_lock
[ZTEST_OBJECT_LOCKS
];
278 zll_t zd_range_lock
[ZTEST_RANGE_LOCKS
];
282 * Per-iteration state.
284 typedef void ztest_func_t(ztest_ds_t
*zd
, uint64_t id
);
286 typedef struct ztest_info
{
287 ztest_func_t
*zi_func
; /* test function */
288 uint64_t zi_iters
; /* iterations per execution */
289 uint64_t *zi_interval
; /* execute every <interval> seconds */
290 const char *zi_funcname
; /* name of test function */
293 typedef struct ztest_shared_callstate
{
294 uint64_t zc_count
; /* per-pass count */
295 uint64_t zc_time
; /* per-pass time */
296 uint64_t zc_next
; /* next time to call this function */
297 } ztest_shared_callstate_t
;
299 static ztest_shared_callstate_t
*ztest_shared_callstate
;
300 #define ZTEST_GET_SHARED_CALLSTATE(c) (&ztest_shared_callstate[c])
302 ztest_func_t ztest_dmu_read_write
;
303 ztest_func_t ztest_dmu_write_parallel
;
304 ztest_func_t ztest_dmu_object_alloc_free
;
305 ztest_func_t ztest_dmu_commit_callbacks
;
306 ztest_func_t ztest_zap
;
307 ztest_func_t ztest_zap_parallel
;
308 ztest_func_t ztest_zil_commit
;
309 ztest_func_t ztest_zil_remount
;
310 ztest_func_t ztest_dmu_read_write_zcopy
;
311 ztest_func_t ztest_dmu_objset_create_destroy
;
312 ztest_func_t ztest_dmu_prealloc
;
313 ztest_func_t ztest_fzap
;
314 ztest_func_t ztest_dmu_snapshot_create_destroy
;
315 ztest_func_t ztest_dsl_prop_get_set
;
316 ztest_func_t ztest_spa_prop_get_set
;
317 ztest_func_t ztest_spa_create_destroy
;
318 ztest_func_t ztest_fault_inject
;
319 ztest_func_t ztest_ddt_repair
;
320 ztest_func_t ztest_dmu_snapshot_hold
;
321 ztest_func_t ztest_spa_rename
;
322 ztest_func_t ztest_scrub
;
323 ztest_func_t ztest_dsl_dataset_promote_busy
;
324 ztest_func_t ztest_vdev_attach_detach
;
325 ztest_func_t ztest_vdev_LUN_growth
;
326 ztest_func_t ztest_vdev_add_remove
;
327 ztest_func_t ztest_vdev_aux_add_remove
;
328 ztest_func_t ztest_split_pool
;
329 ztest_func_t ztest_reguid
;
330 ztest_func_t ztest_spa_upgrade
;
331 ztest_func_t ztest_fletcher
;
333 uint64_t zopt_always
= 0ULL * NANOSEC
; /* all the time */
334 uint64_t zopt_incessant
= 1ULL * NANOSEC
/ 10; /* every 1/10 second */
335 uint64_t zopt_often
= 1ULL * NANOSEC
; /* every second */
336 uint64_t zopt_sometimes
= 10ULL * NANOSEC
; /* every 10 seconds */
337 uint64_t zopt_rarely
= 60ULL * NANOSEC
; /* every 60 seconds */
339 #define ZTI_INIT(func, iters, interval) \
340 { .zi_func = (func), \
341 .zi_iters = (iters), \
342 .zi_interval = (interval), \
343 .zi_funcname = # func }
345 ztest_info_t ztest_info
[] = {
346 ZTI_INIT(ztest_dmu_read_write
, 1, &zopt_always
),
347 ZTI_INIT(ztest_dmu_write_parallel
, 10, &zopt_always
),
348 ZTI_INIT(ztest_dmu_object_alloc_free
, 1, &zopt_always
),
349 ZTI_INIT(ztest_dmu_commit_callbacks
, 1, &zopt_always
),
350 ZTI_INIT(ztest_zap
, 30, &zopt_always
),
351 ZTI_INIT(ztest_zap_parallel
, 100, &zopt_always
),
352 ZTI_INIT(ztest_split_pool
, 1, &zopt_always
),
353 ZTI_INIT(ztest_zil_commit
, 1, &zopt_incessant
),
354 ZTI_INIT(ztest_zil_remount
, 1, &zopt_sometimes
),
355 ZTI_INIT(ztest_dmu_read_write_zcopy
, 1, &zopt_often
),
356 ZTI_INIT(ztest_dmu_objset_create_destroy
, 1, &zopt_often
),
357 ZTI_INIT(ztest_dsl_prop_get_set
, 1, &zopt_often
),
358 ZTI_INIT(ztest_spa_prop_get_set
, 1, &zopt_sometimes
),
360 ZTI_INIT(ztest_dmu_prealloc
, 1, &zopt_sometimes
),
362 ZTI_INIT(ztest_fzap
, 1, &zopt_sometimes
),
363 ZTI_INIT(ztest_dmu_snapshot_create_destroy
, 1, &zopt_sometimes
),
364 ZTI_INIT(ztest_spa_create_destroy
, 1, &zopt_sometimes
),
365 ZTI_INIT(ztest_fault_inject
, 1, &zopt_sometimes
),
366 ZTI_INIT(ztest_ddt_repair
, 1, &zopt_sometimes
),
367 ZTI_INIT(ztest_dmu_snapshot_hold
, 1, &zopt_sometimes
),
368 ZTI_INIT(ztest_reguid
, 1, &zopt_rarely
),
369 ZTI_INIT(ztest_spa_rename
, 1, &zopt_rarely
),
370 ZTI_INIT(ztest_scrub
, 1, &zopt_rarely
),
371 ZTI_INIT(ztest_spa_upgrade
, 1, &zopt_rarely
),
372 ZTI_INIT(ztest_dsl_dataset_promote_busy
, 1, &zopt_rarely
),
373 ZTI_INIT(ztest_vdev_attach_detach
, 1, &zopt_sometimes
),
374 ZTI_INIT(ztest_vdev_LUN_growth
, 1, &zopt_rarely
),
375 ZTI_INIT(ztest_vdev_add_remove
, 1, &ztest_opts
.zo_vdevtime
),
376 ZTI_INIT(ztest_vdev_aux_add_remove
, 1, &ztest_opts
.zo_vdevtime
),
377 ZTI_INIT(ztest_fletcher
, 1, &zopt_rarely
),
380 #define ZTEST_FUNCS (sizeof (ztest_info) / sizeof (ztest_info_t))
383 * The following struct is used to hold a list of uncalled commit callbacks.
384 * The callbacks are ordered by txg number.
386 typedef struct ztest_cb_list
{
387 kmutex_t zcl_callbacks_lock
;
388 list_t zcl_callbacks
;
392 * Stuff we need to share writably between parent and child.
394 typedef struct ztest_shared
{
395 boolean_t zs_do_init
;
396 hrtime_t zs_proc_start
;
397 hrtime_t zs_proc_stop
;
398 hrtime_t zs_thread_start
;
399 hrtime_t zs_thread_stop
;
400 hrtime_t zs_thread_kill
;
401 uint64_t zs_enospc_count
;
402 uint64_t zs_vdev_next_leaf
;
403 uint64_t zs_vdev_aux
;
408 uint64_t zs_metaslab_sz
;
409 uint64_t zs_metaslab_df_alloc_threshold
;
413 #define ID_PARALLEL -1ULL
415 static char ztest_dev_template
[] = "%s/%s.%llua";
416 static char ztest_aux_template
[] = "%s/%s.%s.%llu";
417 ztest_shared_t
*ztest_shared
;
419 static spa_t
*ztest_spa
= NULL
;
420 static ztest_ds_t
*ztest_ds
;
422 static kmutex_t ztest_vdev_lock
;
425 * The ztest_name_lock protects the pool and dataset namespace used by
426 * the individual tests. To modify the namespace, consumers must grab
427 * this lock as writer. Grabbing the lock as reader will ensure that the
428 * namespace does not change while the lock is held.
430 static rwlock_t ztest_name_lock
;
432 static boolean_t ztest_dump_core
= B_TRUE
;
433 static boolean_t ztest_exiting
;
435 /* Global commit callback list */
436 static ztest_cb_list_t zcl
;
437 /* Commit cb delay */
438 static uint64_t zc_min_txg_delay
= UINT64_MAX
;
439 static int zc_cb_counter
= 0;
442 * Minimum number of commit callbacks that need to be registered for us to check
443 * whether the minimum txg delay is acceptable.
445 #define ZTEST_COMMIT_CB_MIN_REG 100
448 * If a number of txgs equal to this threshold have been created after a commit
449 * callback has been registered but not called, then we assume there is an
450 * implementation bug.
452 #define ZTEST_COMMIT_CB_THRESH (TXG_CONCURRENT_STATES + 1000)
454 extern uint64_t metaslab_gang_bang
;
455 extern uint64_t metaslab_df_alloc_threshold
;
458 ZTEST_META_DNODE
= 0,
463 static void usage(boolean_t
) __NORETURN
;
466 * These libumem hooks provide a reasonable set of defaults for the allocator's
467 * debugging facilities.
470 _umem_debug_init(void)
472 return ("default,verbose"); /* $UMEM_DEBUG setting */
476 _umem_logging_init(void)
478 return ("fail,contents"); /* $UMEM_LOGGING setting */
481 #define BACKTRACE_SZ 100
483 static void sig_handler(int signo
)
485 struct sigaction action
;
486 #ifdef __GLIBC__ /* backtrace() is a GNU extension */
488 void *buffer
[BACKTRACE_SZ
];
490 nptrs
= backtrace(buffer
, BACKTRACE_SZ
);
491 backtrace_symbols_fd(buffer
, nptrs
, STDERR_FILENO
);
495 * Restore default action and re-raise signal so SIGSEGV and
496 * SIGABRT can trigger a core dump.
498 action
.sa_handler
= SIG_DFL
;
499 sigemptyset(&action
.sa_mask
);
501 (void) sigaction(signo
, &action
, NULL
);
505 #define FATAL_MSG_SZ 1024
510 fatal(int do_perror
, char *message
, ...)
513 int save_errno
= errno
;
516 (void) fflush(stdout
);
517 buf
= umem_alloc(FATAL_MSG_SZ
, UMEM_NOFAIL
);
519 va_start(args
, message
);
520 (void) sprintf(buf
, "ztest: ");
522 (void) vsprintf(buf
+ strlen(buf
), message
, args
);
525 (void) snprintf(buf
+ strlen(buf
), FATAL_MSG_SZ
- strlen(buf
),
526 ": %s", strerror(save_errno
));
528 (void) fprintf(stderr
, "%s\n", buf
);
529 fatal_msg
= buf
; /* to ease debugging */
536 str2shift(const char *buf
)
538 const char *ends
= "BKMGTPEZ";
543 for (i
= 0; i
< strlen(ends
); i
++) {
544 if (toupper(buf
[0]) == ends
[i
])
547 if (i
== strlen(ends
)) {
548 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n",
552 if (buf
[1] == '\0' || (toupper(buf
[1]) == 'B' && buf
[2] == '\0')) {
555 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n", buf
);
561 nicenumtoull(const char *buf
)
566 val
= strtoull(buf
, &end
, 0);
568 (void) fprintf(stderr
, "ztest: bad numeric value: %s\n", buf
);
570 } else if (end
[0] == '.') {
571 double fval
= strtod(buf
, &end
);
572 fval
*= pow(2, str2shift(end
));
573 if (fval
> UINT64_MAX
) {
574 (void) fprintf(stderr
, "ztest: value too large: %s\n",
578 val
= (uint64_t)fval
;
580 int shift
= str2shift(end
);
581 if (shift
>= 64 || (val
<< shift
) >> shift
!= val
) {
582 (void) fprintf(stderr
, "ztest: value too large: %s\n",
592 usage(boolean_t requested
)
594 const ztest_shared_opts_t
*zo
= &ztest_opts_defaults
;
596 char nice_vdev_size
[10];
597 char nice_gang_bang
[10];
598 FILE *fp
= requested
? stdout
: stderr
;
600 nicenum(zo
->zo_vdev_size
, nice_vdev_size
);
601 nicenum(zo
->zo_metaslab_gang_bang
, nice_gang_bang
);
603 (void) fprintf(fp
, "Usage: %s\n"
604 "\t[-v vdevs (default: %llu)]\n"
605 "\t[-s size_of_each_vdev (default: %s)]\n"
606 "\t[-a alignment_shift (default: %d)] use 0 for random\n"
607 "\t[-m mirror_copies (default: %d)]\n"
608 "\t[-r raidz_disks (default: %d)]\n"
609 "\t[-R raidz_parity (default: %d)]\n"
610 "\t[-d datasets (default: %d)]\n"
611 "\t[-t threads (default: %d)]\n"
612 "\t[-g gang_block_threshold (default: %s)]\n"
613 "\t[-i init_count (default: %d)] initialize pool i times\n"
614 "\t[-k kill_percentage (default: %llu%%)]\n"
615 "\t[-p pool_name (default: %s)]\n"
616 "\t[-f dir (default: %s)] file directory for vdev files\n"
617 "\t[-V] verbose (use multiple times for ever more blather)\n"
618 "\t[-E] use existing pool instead of creating new one\n"
619 "\t[-T time (default: %llu sec)] total run time\n"
620 "\t[-F freezeloops (default: %llu)] max loops in spa_freeze()\n"
621 "\t[-P passtime (default: %llu sec)] time per pass\n"
622 "\t[-B alt_ztest (default: <none>)] alternate ztest path\n"
623 "\t[-h] (print help)\n"
626 (u_longlong_t
)zo
->zo_vdevs
, /* -v */
627 nice_vdev_size
, /* -s */
628 zo
->zo_ashift
, /* -a */
629 zo
->zo_mirrors
, /* -m */
630 zo
->zo_raidz
, /* -r */
631 zo
->zo_raidz_parity
, /* -R */
632 zo
->zo_datasets
, /* -d */
633 zo
->zo_threads
, /* -t */
634 nice_gang_bang
, /* -g */
635 zo
->zo_init
, /* -i */
636 (u_longlong_t
)zo
->zo_killrate
, /* -k */
637 zo
->zo_pool
, /* -p */
639 (u_longlong_t
)zo
->zo_time
, /* -T */
640 (u_longlong_t
)zo
->zo_maxloops
, /* -F */
641 (u_longlong_t
)zo
->zo_passtime
);
642 exit(requested
? 0 : 1);
646 process_options(int argc
, char **argv
)
649 ztest_shared_opts_t
*zo
= &ztest_opts
;
653 char altdir
[MAXNAMELEN
] = { 0 };
655 bcopy(&ztest_opts_defaults
, zo
, sizeof (*zo
));
657 while ((opt
= getopt(argc
, argv
,
658 "v:s:a:m:r:R:d:t:g:i:k:p:f:VET:P:hF:B:")) != EOF
) {
675 value
= nicenumtoull(optarg
);
679 zo
->zo_vdevs
= value
;
682 zo
->zo_vdev_size
= MAX(SPA_MINDEVSIZE
, value
);
685 zo
->zo_ashift
= value
;
688 zo
->zo_mirrors
= value
;
691 zo
->zo_raidz
= MAX(1, value
);
694 zo
->zo_raidz_parity
= MIN(MAX(value
, 1), 3);
697 zo
->zo_datasets
= MAX(1, value
);
700 zo
->zo_threads
= MAX(1, value
);
703 zo
->zo_metaslab_gang_bang
= MAX(SPA_MINBLOCKSIZE
<< 1,
710 zo
->zo_killrate
= value
;
713 (void) strlcpy(zo
->zo_pool
, optarg
,
714 sizeof (zo
->zo_pool
));
717 path
= realpath(optarg
, NULL
);
719 (void) fprintf(stderr
, "error: %s: %s\n",
720 optarg
, strerror(errno
));
723 (void) strlcpy(zo
->zo_dir
, path
,
724 sizeof (zo
->zo_dir
));
737 zo
->zo_passtime
= MAX(1, value
);
740 zo
->zo_maxloops
= MAX(1, value
);
743 (void) strlcpy(altdir
, optarg
, sizeof (altdir
));
755 zo
->zo_raidz_parity
= MIN(zo
->zo_raidz_parity
, zo
->zo_raidz
- 1);
758 (zo
->zo_vdevs
> 0 ? zo
->zo_time
* NANOSEC
/ zo
->zo_vdevs
:
761 if (strlen(altdir
) > 0) {
769 cmd
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
770 realaltdir
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
772 VERIFY(NULL
!= realpath(getexecname(), cmd
));
773 if (0 != access(altdir
, F_OK
)) {
774 ztest_dump_core
= B_FALSE
;
775 fatal(B_TRUE
, "invalid alternate ztest path: %s",
778 VERIFY(NULL
!= realpath(altdir
, realaltdir
));
781 * 'cmd' should be of the form "<anything>/usr/bin/<isa>/ztest".
782 * We want to extract <isa> to determine if we should use
783 * 32 or 64 bit binaries.
785 bin
= strstr(cmd
, "/usr/bin/");
786 ztest
= strstr(bin
, "/ztest");
788 isalen
= ztest
- isa
;
789 (void) snprintf(zo
->zo_alt_ztest
, sizeof (zo
->zo_alt_ztest
),
790 "%s/usr/bin/%.*s/ztest", realaltdir
, isalen
, isa
);
791 (void) snprintf(zo
->zo_alt_libpath
, sizeof (zo
->zo_alt_libpath
),
792 "%s/usr/lib/%.*s", realaltdir
, isalen
, isa
);
794 if (0 != access(zo
->zo_alt_ztest
, X_OK
)) {
795 ztest_dump_core
= B_FALSE
;
796 fatal(B_TRUE
, "invalid alternate ztest: %s",
798 } else if (0 != access(zo
->zo_alt_libpath
, X_OK
)) {
799 ztest_dump_core
= B_FALSE
;
800 fatal(B_TRUE
, "invalid alternate lib directory %s",
804 umem_free(cmd
, MAXPATHLEN
);
805 umem_free(realaltdir
, MAXPATHLEN
);
810 ztest_kill(ztest_shared_t
*zs
)
812 zs
->zs_alloc
= metaslab_class_get_alloc(spa_normal_class(ztest_spa
));
813 zs
->zs_space
= metaslab_class_get_space(spa_normal_class(ztest_spa
));
816 * Before we kill off ztest, make sure that the config is updated.
817 * See comment above spa_config_sync().
819 mutex_enter(&spa_namespace_lock
);
820 spa_config_sync(ztest_spa
, B_FALSE
, B_FALSE
);
821 mutex_exit(&spa_namespace_lock
);
823 (void) kill(getpid(), SIGKILL
);
827 ztest_random(uint64_t range
)
831 ASSERT3S(ztest_fd_rand
, >=, 0);
836 if (read(ztest_fd_rand
, &r
, sizeof (r
)) != sizeof (r
))
837 fatal(1, "short read from /dev/urandom");
844 ztest_record_enospc(const char *s
)
846 ztest_shared
->zs_enospc_count
++;
850 ztest_get_ashift(void)
852 if (ztest_opts
.zo_ashift
== 0)
853 return (SPA_MINBLOCKSHIFT
+ ztest_random(5));
854 return (ztest_opts
.zo_ashift
);
858 make_vdev_file(char *path
, char *aux
, char *pool
, size_t size
, uint64_t ashift
)
864 pathbuf
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
867 ashift
= ztest_get_ashift();
873 vdev
= ztest_shared
->zs_vdev_aux
;
874 (void) snprintf(path
, MAXPATHLEN
,
875 ztest_aux_template
, ztest_opts
.zo_dir
,
876 pool
== NULL
? ztest_opts
.zo_pool
: pool
,
879 vdev
= ztest_shared
->zs_vdev_next_leaf
++;
880 (void) snprintf(path
, MAXPATHLEN
,
881 ztest_dev_template
, ztest_opts
.zo_dir
,
882 pool
== NULL
? ztest_opts
.zo_pool
: pool
, vdev
);
887 int fd
= open(path
, O_RDWR
| O_CREAT
| O_TRUNC
, 0666);
889 fatal(1, "can't open %s", path
);
890 if (ftruncate(fd
, size
) != 0)
891 fatal(1, "can't ftruncate %s", path
);
895 VERIFY(nvlist_alloc(&file
, NV_UNIQUE_NAME
, 0) == 0);
896 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_FILE
) == 0);
897 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_PATH
, path
) == 0);
898 VERIFY(nvlist_add_uint64(file
, ZPOOL_CONFIG_ASHIFT
, ashift
) == 0);
899 umem_free(pathbuf
, MAXPATHLEN
);
905 make_vdev_raidz(char *path
, char *aux
, char *pool
, size_t size
,
906 uint64_t ashift
, int r
)
908 nvlist_t
*raidz
, **child
;
912 return (make_vdev_file(path
, aux
, pool
, size
, ashift
));
913 child
= umem_alloc(r
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
915 for (c
= 0; c
< r
; c
++)
916 child
[c
] = make_vdev_file(path
, aux
, pool
, size
, ashift
);
918 VERIFY(nvlist_alloc(&raidz
, NV_UNIQUE_NAME
, 0) == 0);
919 VERIFY(nvlist_add_string(raidz
, ZPOOL_CONFIG_TYPE
,
920 VDEV_TYPE_RAIDZ
) == 0);
921 VERIFY(nvlist_add_uint64(raidz
, ZPOOL_CONFIG_NPARITY
,
922 ztest_opts
.zo_raidz_parity
) == 0);
923 VERIFY(nvlist_add_nvlist_array(raidz
, ZPOOL_CONFIG_CHILDREN
,
926 for (c
= 0; c
< r
; c
++)
927 nvlist_free(child
[c
]);
929 umem_free(child
, r
* sizeof (nvlist_t
*));
935 make_vdev_mirror(char *path
, char *aux
, char *pool
, size_t size
,
936 uint64_t ashift
, int r
, int m
)
938 nvlist_t
*mirror
, **child
;
942 return (make_vdev_raidz(path
, aux
, pool
, size
, ashift
, r
));
944 child
= umem_alloc(m
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
946 for (c
= 0; c
< m
; c
++)
947 child
[c
] = make_vdev_raidz(path
, aux
, pool
, size
, ashift
, r
);
949 VERIFY(nvlist_alloc(&mirror
, NV_UNIQUE_NAME
, 0) == 0);
950 VERIFY(nvlist_add_string(mirror
, ZPOOL_CONFIG_TYPE
,
951 VDEV_TYPE_MIRROR
) == 0);
952 VERIFY(nvlist_add_nvlist_array(mirror
, ZPOOL_CONFIG_CHILDREN
,
955 for (c
= 0; c
< m
; c
++)
956 nvlist_free(child
[c
]);
958 umem_free(child
, m
* sizeof (nvlist_t
*));
964 make_vdev_root(char *path
, char *aux
, char *pool
, size_t size
, uint64_t ashift
,
965 int log
, int r
, int m
, int t
)
967 nvlist_t
*root
, **child
;
972 child
= umem_alloc(t
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
974 for (c
= 0; c
< t
; c
++) {
975 child
[c
] = make_vdev_mirror(path
, aux
, pool
, size
, ashift
,
977 VERIFY(nvlist_add_uint64(child
[c
], ZPOOL_CONFIG_IS_LOG
,
981 VERIFY(nvlist_alloc(&root
, NV_UNIQUE_NAME
, 0) == 0);
982 VERIFY(nvlist_add_string(root
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_ROOT
) == 0);
983 VERIFY(nvlist_add_nvlist_array(root
, aux
? aux
: ZPOOL_CONFIG_CHILDREN
,
986 for (c
= 0; c
< t
; c
++)
987 nvlist_free(child
[c
]);
989 umem_free(child
, t
* sizeof (nvlist_t
*));
995 * Find a random spa version. Returns back a random spa version in the
996 * range [initial_version, SPA_VERSION_FEATURES].
999 ztest_random_spa_version(uint64_t initial_version
)
1001 uint64_t version
= initial_version
;
1003 if (version
<= SPA_VERSION_BEFORE_FEATURES
) {
1005 ztest_random(SPA_VERSION_BEFORE_FEATURES
- version
+ 1);
1008 if (version
> SPA_VERSION_BEFORE_FEATURES
)
1009 version
= SPA_VERSION_FEATURES
;
1011 ASSERT(SPA_VERSION_IS_SUPPORTED(version
));
1016 ztest_random_blocksize(void)
1019 * Choose a block size >= the ashift.
1020 * If the SPA supports new MAXBLOCKSIZE, test up to 1MB blocks.
1022 int maxbs
= SPA_OLD_MAXBLOCKSHIFT
;
1023 if (spa_maxblocksize(ztest_spa
) == SPA_MAXBLOCKSIZE
)
1025 uint64_t block_shift
=
1026 ztest_random(maxbs
- ztest_spa
->spa_max_ashift
+ 1);
1027 return (1 << (SPA_MINBLOCKSHIFT
+ block_shift
));
1031 ztest_random_ibshift(void)
1033 return (DN_MIN_INDBLKSHIFT
+
1034 ztest_random(DN_MAX_INDBLKSHIFT
- DN_MIN_INDBLKSHIFT
+ 1));
1038 ztest_random_vdev_top(spa_t
*spa
, boolean_t log_ok
)
1041 vdev_t
*rvd
= spa
->spa_root_vdev
;
1044 ASSERT(spa_config_held(spa
, SCL_ALL
, RW_READER
) != 0);
1047 top
= ztest_random(rvd
->vdev_children
);
1048 tvd
= rvd
->vdev_child
[top
];
1049 } while (tvd
->vdev_ishole
|| (tvd
->vdev_islog
&& !log_ok
) ||
1050 tvd
->vdev_mg
== NULL
|| tvd
->vdev_mg
->mg_class
== NULL
);
1056 ztest_random_dsl_prop(zfs_prop_t prop
)
1061 value
= zfs_prop_random_value(prop
, ztest_random(-1ULL));
1062 } while (prop
== ZFS_PROP_CHECKSUM
&& value
== ZIO_CHECKSUM_OFF
);
1068 ztest_dsl_prop_set_uint64(char *osname
, zfs_prop_t prop
, uint64_t value
,
1071 const char *propname
= zfs_prop_to_name(prop
);
1072 const char *valname
;
1077 error
= dsl_prop_set_int(osname
, propname
,
1078 (inherit
? ZPROP_SRC_NONE
: ZPROP_SRC_LOCAL
), value
);
1080 if (error
== ENOSPC
) {
1081 ztest_record_enospc(FTAG
);
1086 setpoint
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
1087 VERIFY0(dsl_prop_get_integer(osname
, propname
, &curval
, setpoint
));
1089 if (ztest_opts
.zo_verbose
>= 6) {
1092 err
= zfs_prop_index_to_string(prop
, curval
, &valname
);
1094 (void) printf("%s %s = %llu at '%s'\n",
1095 osname
, propname
, (unsigned long long)curval
,
1098 (void) printf("%s %s = %s at '%s'\n",
1099 osname
, propname
, valname
, setpoint
);
1101 umem_free(setpoint
, MAXPATHLEN
);
1107 ztest_spa_prop_set_uint64(zpool_prop_t prop
, uint64_t value
)
1109 spa_t
*spa
= ztest_spa
;
1110 nvlist_t
*props
= NULL
;
1113 VERIFY(nvlist_alloc(&props
, NV_UNIQUE_NAME
, 0) == 0);
1114 VERIFY(nvlist_add_uint64(props
, zpool_prop_to_name(prop
), value
) == 0);
1116 error
= spa_prop_set(spa
, props
);
1120 if (error
== ENOSPC
) {
1121 ztest_record_enospc(FTAG
);
1131 * Object and range lock mechanics
1134 list_node_t z_lnode
;
1135 refcount_t z_refcnt
;
1137 zfs_rlock_t z_range_lock
;
1142 ztest_znode_t
*z_ztznode
;
1145 static ztest_znode_t
*
1146 ztest_znode_init(uint64_t object
)
1148 ztest_znode_t
*zp
= umem_alloc(sizeof (*zp
), UMEM_NOFAIL
);
1150 list_link_init(&zp
->z_lnode
);
1151 refcount_create(&zp
->z_refcnt
);
1152 zp
->z_object
= object
;
1153 zfs_rlock_init(&zp
->z_range_lock
);
1159 ztest_znode_fini(ztest_znode_t
*zp
)
1161 ASSERT(refcount_is_zero(&zp
->z_refcnt
));
1162 zfs_rlock_destroy(&zp
->z_range_lock
);
1164 refcount_destroy(&zp
->z_refcnt
);
1165 list_link_init(&zp
->z_lnode
);
1166 umem_free(zp
, sizeof (*zp
));
1170 ztest_zll_init(zll_t
*zll
)
1172 mutex_init(&zll
->z_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
1173 list_create(&zll
->z_list
, sizeof (ztest_znode_t
),
1174 offsetof(ztest_znode_t
, z_lnode
));
1178 ztest_zll_destroy(zll_t
*zll
)
1180 list_destroy(&zll
->z_list
);
1181 mutex_destroy(&zll
->z_lock
);
1184 #define RL_TAG "range_lock"
1185 static ztest_znode_t
*
1186 ztest_znode_get(ztest_ds_t
*zd
, uint64_t object
)
1188 zll_t
*zll
= &zd
->zd_range_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1189 ztest_znode_t
*zp
= NULL
;
1190 mutex_enter(&zll
->z_lock
);
1191 for (zp
= list_head(&zll
->z_list
); (zp
);
1192 zp
= list_next(&zll
->z_list
, zp
)) {
1193 if (zp
->z_object
== object
) {
1194 refcount_add(&zp
->z_refcnt
, RL_TAG
);
1199 zp
= ztest_znode_init(object
);
1200 refcount_add(&zp
->z_refcnt
, RL_TAG
);
1201 list_insert_head(&zll
->z_list
, zp
);
1203 mutex_exit(&zll
->z_lock
);
1208 ztest_znode_put(ztest_ds_t
*zd
, ztest_znode_t
*zp
)
1211 ASSERT3U(zp
->z_object
, !=, 0);
1212 zll
= &zd
->zd_range_lock
[zp
->z_object
& (ZTEST_OBJECT_LOCKS
- 1)];
1213 mutex_enter(&zll
->z_lock
);
1214 refcount_remove(&zp
->z_refcnt
, RL_TAG
);
1215 if (refcount_is_zero(&zp
->z_refcnt
)) {
1216 list_remove(&zll
->z_list
, zp
);
1217 ztest_znode_fini(zp
);
1219 mutex_exit(&zll
->z_lock
);
1224 ztest_rll_init(rll_t
*rll
)
1226 rll
->rll_writer
= NULL
;
1227 rll
->rll_readers
= 0;
1228 mutex_init(&rll
->rll_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
1229 cv_init(&rll
->rll_cv
, NULL
, CV_DEFAULT
, NULL
);
1233 ztest_rll_destroy(rll_t
*rll
)
1235 ASSERT(rll
->rll_writer
== NULL
);
1236 ASSERT(rll
->rll_readers
== 0);
1237 mutex_destroy(&rll
->rll_lock
);
1238 cv_destroy(&rll
->rll_cv
);
1242 ztest_rll_lock(rll_t
*rll
, rl_type_t type
)
1244 mutex_enter(&rll
->rll_lock
);
1246 if (type
== RL_READER
) {
1247 while (rll
->rll_writer
!= NULL
)
1248 (void) cv_wait(&rll
->rll_cv
, &rll
->rll_lock
);
1251 while (rll
->rll_writer
!= NULL
|| rll
->rll_readers
)
1252 (void) cv_wait(&rll
->rll_cv
, &rll
->rll_lock
);
1253 rll
->rll_writer
= curthread
;
1256 mutex_exit(&rll
->rll_lock
);
1260 ztest_rll_unlock(rll_t
*rll
)
1262 mutex_enter(&rll
->rll_lock
);
1264 if (rll
->rll_writer
) {
1265 ASSERT(rll
->rll_readers
== 0);
1266 rll
->rll_writer
= NULL
;
1268 ASSERT(rll
->rll_readers
!= 0);
1269 ASSERT(rll
->rll_writer
== NULL
);
1273 if (rll
->rll_writer
== NULL
&& rll
->rll_readers
== 0)
1274 cv_broadcast(&rll
->rll_cv
);
1276 mutex_exit(&rll
->rll_lock
);
1280 ztest_object_lock(ztest_ds_t
*zd
, uint64_t object
, rl_type_t type
)
1282 rll_t
*rll
= &zd
->zd_object_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1284 ztest_rll_lock(rll
, type
);
1288 ztest_object_unlock(ztest_ds_t
*zd
, uint64_t object
)
1290 rll_t
*rll
= &zd
->zd_object_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1292 ztest_rll_unlock(rll
);
1295 static ztest_zrl_t
*
1296 ztest_zrl_init(rl_t
*rl
, ztest_znode_t
*zp
)
1298 ztest_zrl_t
*zrl
= umem_alloc(sizeof (*zrl
), UMEM_NOFAIL
);
1300 zrl
->z_ztznode
= zp
;
1305 ztest_zrl_fini(ztest_zrl_t
*zrl
)
1307 umem_free(zrl
, sizeof (*zrl
));
1310 static ztest_zrl_t
*
1311 ztest_range_lock(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
,
1312 uint64_t size
, rl_type_t type
)
1314 ztest_znode_t
*zp
= ztest_znode_get(zd
, object
);
1315 rl_t
*rl
= zfs_range_lock(&zp
->z_range_lock
, offset
,
1317 return (ztest_zrl_init(rl
, zp
));
1321 ztest_range_unlock(ztest_ds_t
*zd
, ztest_zrl_t
*zrl
)
1323 zfs_range_unlock(zrl
->z_rl
);
1324 ztest_znode_put(zd
, zrl
->z_ztznode
);
1325 ztest_zrl_fini(zrl
);
1329 ztest_zd_init(ztest_ds_t
*zd
, ztest_shared_ds_t
*szd
, objset_t
*os
)
1332 zd
->zd_zilog
= dmu_objset_zil(os
);
1333 zd
->zd_shared
= szd
;
1334 dmu_objset_name(os
, zd
->zd_name
);
1337 if (zd
->zd_shared
!= NULL
)
1338 zd
->zd_shared
->zd_seq
= 0;
1340 VERIFY(rwlock_init(&zd
->zd_zilog_lock
, USYNC_THREAD
, NULL
) == 0);
1341 mutex_init(&zd
->zd_dirobj_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
1343 for (l
= 0; l
< ZTEST_OBJECT_LOCKS
; l
++)
1344 ztest_rll_init(&zd
->zd_object_lock
[l
]);
1346 for (l
= 0; l
< ZTEST_RANGE_LOCKS
; l
++)
1347 ztest_zll_init(&zd
->zd_range_lock
[l
]);
1351 ztest_zd_fini(ztest_ds_t
*zd
)
1355 mutex_destroy(&zd
->zd_dirobj_lock
);
1356 (void) rwlock_destroy(&zd
->zd_zilog_lock
);
1358 for (l
= 0; l
< ZTEST_OBJECT_LOCKS
; l
++)
1359 ztest_rll_destroy(&zd
->zd_object_lock
[l
]);
1361 for (l
= 0; l
< ZTEST_RANGE_LOCKS
; l
++)
1362 ztest_zll_destroy(&zd
->zd_range_lock
[l
]);
1365 #define TXG_MIGHTWAIT (ztest_random(10) == 0 ? TXG_NOWAIT : TXG_WAIT)
1368 ztest_tx_assign(dmu_tx_t
*tx
, uint64_t txg_how
, const char *tag
)
1374 * Attempt to assign tx to some transaction group.
1376 error
= dmu_tx_assign(tx
, txg_how
);
1378 if (error
== ERESTART
) {
1379 ASSERT(txg_how
== TXG_NOWAIT
);
1382 ASSERT3U(error
, ==, ENOSPC
);
1383 ztest_record_enospc(tag
);
1388 txg
= dmu_tx_get_txg(tx
);
1394 ztest_pattern_set(void *buf
, uint64_t size
, uint64_t value
)
1397 uint64_t *ip_end
= (uint64_t *)((uintptr_t)buf
+ (uintptr_t)size
);
1405 ztest_pattern_match(void *buf
, uint64_t size
, uint64_t value
)
1408 uint64_t *ip_end
= (uint64_t *)((uintptr_t)buf
+ (uintptr_t)size
);
1412 diff
|= (value
- *ip
++);
1419 ztest_bt_generate(ztest_block_tag_t
*bt
, objset_t
*os
, uint64_t object
,
1420 uint64_t offset
, uint64_t gen
, uint64_t txg
, uint64_t crtxg
)
1422 bt
->bt_magic
= BT_MAGIC
;
1423 bt
->bt_objset
= dmu_objset_id(os
);
1424 bt
->bt_object
= object
;
1425 bt
->bt_offset
= offset
;
1428 bt
->bt_crtxg
= crtxg
;
1432 ztest_bt_verify(ztest_block_tag_t
*bt
, objset_t
*os
, uint64_t object
,
1433 uint64_t offset
, uint64_t gen
, uint64_t txg
, uint64_t crtxg
)
1435 ASSERT3U(bt
->bt_magic
, ==, BT_MAGIC
);
1436 ASSERT3U(bt
->bt_objset
, ==, dmu_objset_id(os
));
1437 ASSERT3U(bt
->bt_object
, ==, object
);
1438 ASSERT3U(bt
->bt_offset
, ==, offset
);
1439 ASSERT3U(bt
->bt_gen
, <=, gen
);
1440 ASSERT3U(bt
->bt_txg
, <=, txg
);
1441 ASSERT3U(bt
->bt_crtxg
, ==, crtxg
);
1444 static ztest_block_tag_t
*
1445 ztest_bt_bonus(dmu_buf_t
*db
)
1447 dmu_object_info_t doi
;
1448 ztest_block_tag_t
*bt
;
1450 dmu_object_info_from_db(db
, &doi
);
1451 ASSERT3U(doi
.doi_bonus_size
, <=, db
->db_size
);
1452 ASSERT3U(doi
.doi_bonus_size
, >=, sizeof (*bt
));
1453 bt
= (void *)((char *)db
->db_data
+ doi
.doi_bonus_size
- sizeof (*bt
));
1462 #define lrz_type lr_mode
1463 #define lrz_blocksize lr_uid
1464 #define lrz_ibshift lr_gid
1465 #define lrz_bonustype lr_rdev
1466 #define lrz_bonuslen lr_crtime[1]
1469 ztest_log_create(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_create_t
*lr
)
1471 char *name
= (void *)(lr
+ 1); /* name follows lr */
1472 size_t namesize
= strlen(name
) + 1;
1475 if (zil_replaying(zd
->zd_zilog
, tx
))
1478 itx
= zil_itx_create(TX_CREATE
, sizeof (*lr
) + namesize
);
1479 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1480 sizeof (*lr
) + namesize
- sizeof (lr_t
));
1482 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1486 ztest_log_remove(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_remove_t
*lr
, uint64_t object
)
1488 char *name
= (void *)(lr
+ 1); /* name follows lr */
1489 size_t namesize
= strlen(name
) + 1;
1492 if (zil_replaying(zd
->zd_zilog
, tx
))
1495 itx
= zil_itx_create(TX_REMOVE
, sizeof (*lr
) + namesize
);
1496 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1497 sizeof (*lr
) + namesize
- sizeof (lr_t
));
1499 itx
->itx_oid
= object
;
1500 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1504 ztest_log_write(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_write_t
*lr
)
1507 itx_wr_state_t write_state
= ztest_random(WR_NUM_STATES
);
1509 if (zil_replaying(zd
->zd_zilog
, tx
))
1512 if (lr
->lr_length
> ZIL_MAX_LOG_DATA
)
1513 write_state
= WR_INDIRECT
;
1515 itx
= zil_itx_create(TX_WRITE
,
1516 sizeof (*lr
) + (write_state
== WR_COPIED
? lr
->lr_length
: 0));
1518 if (write_state
== WR_COPIED
&&
1519 dmu_read(zd
->zd_os
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
,
1520 ((lr_write_t
*)&itx
->itx_lr
) + 1, DMU_READ_NO_PREFETCH
) != 0) {
1521 zil_itx_destroy(itx
);
1522 itx
= zil_itx_create(TX_WRITE
, sizeof (*lr
));
1523 write_state
= WR_NEED_COPY
;
1525 itx
->itx_private
= zd
;
1526 itx
->itx_wr_state
= write_state
;
1527 itx
->itx_sync
= (ztest_random(8) == 0);
1528 itx
->itx_sod
+= (write_state
== WR_NEED_COPY
? lr
->lr_length
: 0);
1530 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1531 sizeof (*lr
) - sizeof (lr_t
));
1533 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1537 ztest_log_truncate(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_truncate_t
*lr
)
1541 if (zil_replaying(zd
->zd_zilog
, tx
))
1544 itx
= zil_itx_create(TX_TRUNCATE
, sizeof (*lr
));
1545 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1546 sizeof (*lr
) - sizeof (lr_t
));
1548 itx
->itx_sync
= B_FALSE
;
1549 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1553 ztest_log_setattr(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_setattr_t
*lr
)
1557 if (zil_replaying(zd
->zd_zilog
, tx
))
1560 itx
= zil_itx_create(TX_SETATTR
, sizeof (*lr
));
1561 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1562 sizeof (*lr
) - sizeof (lr_t
));
1564 itx
->itx_sync
= B_FALSE
;
1565 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1572 ztest_replay_create(ztest_ds_t
*zd
, lr_create_t
*lr
, boolean_t byteswap
)
1574 char *name
= (void *)(lr
+ 1); /* name follows lr */
1575 objset_t
*os
= zd
->zd_os
;
1576 ztest_block_tag_t
*bbt
;
1583 byteswap_uint64_array(lr
, sizeof (*lr
));
1585 ASSERT(lr
->lr_doid
== ZTEST_DIROBJ
);
1586 ASSERT(name
[0] != '\0');
1588 tx
= dmu_tx_create(os
);
1590 dmu_tx_hold_zap(tx
, lr
->lr_doid
, B_TRUE
, name
);
1592 if (lr
->lrz_type
== DMU_OT_ZAP_OTHER
) {
1593 dmu_tx_hold_zap(tx
, DMU_NEW_OBJECT
, B_TRUE
, NULL
);
1595 dmu_tx_hold_bonus(tx
, DMU_NEW_OBJECT
);
1598 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1602 ASSERT(dmu_objset_zil(os
)->zl_replay
== !!lr
->lr_foid
);
1604 if (lr
->lrz_type
== DMU_OT_ZAP_OTHER
) {
1605 if (lr
->lr_foid
== 0) {
1606 lr
->lr_foid
= zap_create(os
,
1607 lr
->lrz_type
, lr
->lrz_bonustype
,
1608 lr
->lrz_bonuslen
, tx
);
1610 error
= zap_create_claim(os
, lr
->lr_foid
,
1611 lr
->lrz_type
, lr
->lrz_bonustype
,
1612 lr
->lrz_bonuslen
, tx
);
1615 if (lr
->lr_foid
== 0) {
1616 lr
->lr_foid
= dmu_object_alloc(os
,
1617 lr
->lrz_type
, 0, lr
->lrz_bonustype
,
1618 lr
->lrz_bonuslen
, tx
);
1620 error
= dmu_object_claim(os
, lr
->lr_foid
,
1621 lr
->lrz_type
, 0, lr
->lrz_bonustype
,
1622 lr
->lrz_bonuslen
, tx
);
1627 ASSERT3U(error
, ==, EEXIST
);
1628 ASSERT(zd
->zd_zilog
->zl_replay
);
1633 ASSERT(lr
->lr_foid
!= 0);
1635 if (lr
->lrz_type
!= DMU_OT_ZAP_OTHER
)
1636 VERIFY3U(0, ==, dmu_object_set_blocksize(os
, lr
->lr_foid
,
1637 lr
->lrz_blocksize
, lr
->lrz_ibshift
, tx
));
1639 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1640 bbt
= ztest_bt_bonus(db
);
1641 dmu_buf_will_dirty(db
, tx
);
1642 ztest_bt_generate(bbt
, os
, lr
->lr_foid
, -1ULL, lr
->lr_gen
, txg
, txg
);
1643 dmu_buf_rele(db
, FTAG
);
1645 VERIFY3U(0, ==, zap_add(os
, lr
->lr_doid
, name
, sizeof (uint64_t), 1,
1648 (void) ztest_log_create(zd
, tx
, lr
);
1656 ztest_replay_remove(ztest_ds_t
*zd
, lr_remove_t
*lr
, boolean_t byteswap
)
1658 char *name
= (void *)(lr
+ 1); /* name follows lr */
1659 objset_t
*os
= zd
->zd_os
;
1660 dmu_object_info_t doi
;
1662 uint64_t object
, txg
;
1665 byteswap_uint64_array(lr
, sizeof (*lr
));
1667 ASSERT(lr
->lr_doid
== ZTEST_DIROBJ
);
1668 ASSERT(name
[0] != '\0');
1671 zap_lookup(os
, lr
->lr_doid
, name
, sizeof (object
), 1, &object
));
1672 ASSERT(object
!= 0);
1674 ztest_object_lock(zd
, object
, RL_WRITER
);
1676 VERIFY3U(0, ==, dmu_object_info(os
, object
, &doi
));
1678 tx
= dmu_tx_create(os
);
1680 dmu_tx_hold_zap(tx
, lr
->lr_doid
, B_FALSE
, name
);
1681 dmu_tx_hold_free(tx
, object
, 0, DMU_OBJECT_END
);
1683 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1685 ztest_object_unlock(zd
, object
);
1689 if (doi
.doi_type
== DMU_OT_ZAP_OTHER
) {
1690 VERIFY3U(0, ==, zap_destroy(os
, object
, tx
));
1692 VERIFY3U(0, ==, dmu_object_free(os
, object
, tx
));
1695 VERIFY3U(0, ==, zap_remove(os
, lr
->lr_doid
, name
, tx
));
1697 (void) ztest_log_remove(zd
, tx
, lr
, object
);
1701 ztest_object_unlock(zd
, object
);
1707 ztest_replay_write(ztest_ds_t
*zd
, lr_write_t
*lr
, boolean_t byteswap
)
1709 objset_t
*os
= zd
->zd_os
;
1710 void *data
= lr
+ 1; /* data follows lr */
1711 uint64_t offset
, length
;
1712 ztest_block_tag_t
*bt
= data
;
1713 ztest_block_tag_t
*bbt
;
1714 uint64_t gen
, txg
, lrtxg
, crtxg
;
1715 dmu_object_info_t doi
;
1718 arc_buf_t
*abuf
= NULL
;
1722 byteswap_uint64_array(lr
, sizeof (*lr
));
1724 offset
= lr
->lr_offset
;
1725 length
= lr
->lr_length
;
1727 /* If it's a dmu_sync() block, write the whole block */
1728 if (lr
->lr_common
.lrc_reclen
== sizeof (lr_write_t
)) {
1729 uint64_t blocksize
= BP_GET_LSIZE(&lr
->lr_blkptr
);
1730 if (length
< blocksize
) {
1731 offset
-= offset
% blocksize
;
1736 if (bt
->bt_magic
== BSWAP_64(BT_MAGIC
))
1737 byteswap_uint64_array(bt
, sizeof (*bt
));
1739 if (bt
->bt_magic
!= BT_MAGIC
)
1742 ztest_object_lock(zd
, lr
->lr_foid
, RL_READER
);
1743 rl
= ztest_range_lock(zd
, lr
->lr_foid
, offset
, length
, RL_WRITER
);
1745 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1747 dmu_object_info_from_db(db
, &doi
);
1749 bbt
= ztest_bt_bonus(db
);
1750 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1752 crtxg
= bbt
->bt_crtxg
;
1753 lrtxg
= lr
->lr_common
.lrc_txg
;
1755 tx
= dmu_tx_create(os
);
1757 dmu_tx_hold_write(tx
, lr
->lr_foid
, offset
, length
);
1759 if (ztest_random(8) == 0 && length
== doi
.doi_data_block_size
&&
1760 P2PHASE(offset
, length
) == 0)
1761 abuf
= dmu_request_arcbuf(db
, length
);
1763 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1766 dmu_return_arcbuf(abuf
);
1767 dmu_buf_rele(db
, FTAG
);
1768 ztest_range_unlock(zd
, rl
);
1769 ztest_object_unlock(zd
, lr
->lr_foid
);
1775 * Usually, verify the old data before writing new data --
1776 * but not always, because we also want to verify correct
1777 * behavior when the data was not recently read into cache.
1779 ASSERT(offset
% doi
.doi_data_block_size
== 0);
1780 if (ztest_random(4) != 0) {
1781 int prefetch
= ztest_random(2) ?
1782 DMU_READ_PREFETCH
: DMU_READ_NO_PREFETCH
;
1783 ztest_block_tag_t rbt
;
1785 VERIFY(dmu_read(os
, lr
->lr_foid
, offset
,
1786 sizeof (rbt
), &rbt
, prefetch
) == 0);
1787 if (rbt
.bt_magic
== BT_MAGIC
) {
1788 ztest_bt_verify(&rbt
, os
, lr
->lr_foid
,
1789 offset
, gen
, txg
, crtxg
);
1794 * Writes can appear to be newer than the bonus buffer because
1795 * the ztest_get_data() callback does a dmu_read() of the
1796 * open-context data, which may be different than the data
1797 * as it was when the write was generated.
1799 if (zd
->zd_zilog
->zl_replay
) {
1800 ztest_bt_verify(bt
, os
, lr
->lr_foid
, offset
,
1801 MAX(gen
, bt
->bt_gen
), MAX(txg
, lrtxg
),
1806 * Set the bt's gen/txg to the bonus buffer's gen/txg
1807 * so that all of the usual ASSERTs will work.
1809 ztest_bt_generate(bt
, os
, lr
->lr_foid
, offset
, gen
, txg
, crtxg
);
1813 dmu_write(os
, lr
->lr_foid
, offset
, length
, data
, tx
);
1815 bcopy(data
, abuf
->b_data
, length
);
1816 dmu_assign_arcbuf(db
, offset
, abuf
, tx
);
1819 (void) ztest_log_write(zd
, tx
, lr
);
1821 dmu_buf_rele(db
, FTAG
);
1825 ztest_range_unlock(zd
, rl
);
1826 ztest_object_unlock(zd
, lr
->lr_foid
);
1832 ztest_replay_truncate(ztest_ds_t
*zd
, lr_truncate_t
*lr
, boolean_t byteswap
)
1834 objset_t
*os
= zd
->zd_os
;
1840 byteswap_uint64_array(lr
, sizeof (*lr
));
1842 ztest_object_lock(zd
, lr
->lr_foid
, RL_READER
);
1843 rl
= ztest_range_lock(zd
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
,
1846 tx
= dmu_tx_create(os
);
1848 dmu_tx_hold_free(tx
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
);
1850 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1852 ztest_range_unlock(zd
, rl
);
1853 ztest_object_unlock(zd
, lr
->lr_foid
);
1857 VERIFY(dmu_free_range(os
, lr
->lr_foid
, lr
->lr_offset
,
1858 lr
->lr_length
, tx
) == 0);
1860 (void) ztest_log_truncate(zd
, tx
, lr
);
1864 ztest_range_unlock(zd
, rl
);
1865 ztest_object_unlock(zd
, lr
->lr_foid
);
1871 ztest_replay_setattr(ztest_ds_t
*zd
, lr_setattr_t
*lr
, boolean_t byteswap
)
1873 objset_t
*os
= zd
->zd_os
;
1876 ztest_block_tag_t
*bbt
;
1877 uint64_t txg
, lrtxg
, crtxg
;
1880 byteswap_uint64_array(lr
, sizeof (*lr
));
1882 ztest_object_lock(zd
, lr
->lr_foid
, RL_WRITER
);
1884 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1886 tx
= dmu_tx_create(os
);
1887 dmu_tx_hold_bonus(tx
, lr
->lr_foid
);
1889 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1891 dmu_buf_rele(db
, FTAG
);
1892 ztest_object_unlock(zd
, lr
->lr_foid
);
1896 bbt
= ztest_bt_bonus(db
);
1897 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1898 crtxg
= bbt
->bt_crtxg
;
1899 lrtxg
= lr
->lr_common
.lrc_txg
;
1901 if (zd
->zd_zilog
->zl_replay
) {
1902 ASSERT(lr
->lr_size
!= 0);
1903 ASSERT(lr
->lr_mode
!= 0);
1907 * Randomly change the size and increment the generation.
1909 lr
->lr_size
= (ztest_random(db
->db_size
/ sizeof (*bbt
)) + 1) *
1911 lr
->lr_mode
= bbt
->bt_gen
+ 1;
1916 * Verify that the current bonus buffer is not newer than our txg.
1918 ztest_bt_verify(bbt
, os
, lr
->lr_foid
, -1ULL, lr
->lr_mode
,
1919 MAX(txg
, lrtxg
), crtxg
);
1921 dmu_buf_will_dirty(db
, tx
);
1923 ASSERT3U(lr
->lr_size
, >=, sizeof (*bbt
));
1924 ASSERT3U(lr
->lr_size
, <=, db
->db_size
);
1925 VERIFY0(dmu_set_bonus(db
, lr
->lr_size
, tx
));
1926 bbt
= ztest_bt_bonus(db
);
1928 ztest_bt_generate(bbt
, os
, lr
->lr_foid
, -1ULL, lr
->lr_mode
, txg
, crtxg
);
1930 dmu_buf_rele(db
, FTAG
);
1932 (void) ztest_log_setattr(zd
, tx
, lr
);
1936 ztest_object_unlock(zd
, lr
->lr_foid
);
1941 zil_replay_func_t ztest_replay_vector
[TX_MAX_TYPE
] = {
1942 NULL
, /* 0 no such transaction type */
1943 (zil_replay_func_t
)ztest_replay_create
, /* TX_CREATE */
1944 NULL
, /* TX_MKDIR */
1945 NULL
, /* TX_MKXATTR */
1946 NULL
, /* TX_SYMLINK */
1947 (zil_replay_func_t
)ztest_replay_remove
, /* TX_REMOVE */
1948 NULL
, /* TX_RMDIR */
1950 NULL
, /* TX_RENAME */
1951 (zil_replay_func_t
)ztest_replay_write
, /* TX_WRITE */
1952 (zil_replay_func_t
)ztest_replay_truncate
, /* TX_TRUNCATE */
1953 (zil_replay_func_t
)ztest_replay_setattr
, /* TX_SETATTR */
1955 NULL
, /* TX_CREATE_ACL */
1956 NULL
, /* TX_CREATE_ATTR */
1957 NULL
, /* TX_CREATE_ACL_ATTR */
1958 NULL
, /* TX_MKDIR_ACL */
1959 NULL
, /* TX_MKDIR_ATTR */
1960 NULL
, /* TX_MKDIR_ACL_ATTR */
1961 NULL
, /* TX_WRITE2 */
1965 * ZIL get_data callbacks
1967 typedef struct ztest_zgd_private
{
1971 } ztest_zgd_private_t
;
1974 ztest_get_done(zgd_t
*zgd
, int error
)
1976 ztest_zgd_private_t
*zzp
= zgd
->zgd_private
;
1977 ztest_ds_t
*zd
= zzp
->z_zd
;
1978 uint64_t object
= zzp
->z_object
;
1981 dmu_buf_rele(zgd
->zgd_db
, zgd
);
1983 ztest_range_unlock(zd
, zzp
->z_rl
);
1984 ztest_object_unlock(zd
, object
);
1986 if (error
== 0 && zgd
->zgd_bp
)
1987 zil_add_block(zgd
->zgd_zilog
, zgd
->zgd_bp
);
1989 umem_free(zgd
, sizeof (*zgd
));
1990 umem_free(zzp
, sizeof (*zzp
));
1994 ztest_get_data(void *arg
, lr_write_t
*lr
, char *buf
, zio_t
*zio
)
1996 ztest_ds_t
*zd
= arg
;
1997 objset_t
*os
= zd
->zd_os
;
1998 uint64_t object
= lr
->lr_foid
;
1999 uint64_t offset
= lr
->lr_offset
;
2000 uint64_t size
= lr
->lr_length
;
2001 blkptr_t
*bp
= &lr
->lr_blkptr
;
2002 uint64_t txg
= lr
->lr_common
.lrc_txg
;
2004 dmu_object_info_t doi
;
2008 ztest_zgd_private_t
*zgd_private
;
2010 ztest_object_lock(zd
, object
, RL_READER
);
2011 error
= dmu_bonus_hold(os
, object
, FTAG
, &db
);
2013 ztest_object_unlock(zd
, object
);
2017 crtxg
= ztest_bt_bonus(db
)->bt_crtxg
;
2019 if (crtxg
== 0 || crtxg
> txg
) {
2020 dmu_buf_rele(db
, FTAG
);
2021 ztest_object_unlock(zd
, object
);
2025 dmu_object_info_from_db(db
, &doi
);
2026 dmu_buf_rele(db
, FTAG
);
2029 zgd
= umem_zalloc(sizeof (*zgd
), UMEM_NOFAIL
);
2030 zgd
->zgd_zilog
= zd
->zd_zilog
;
2031 zgd_private
= umem_zalloc(sizeof (ztest_zgd_private_t
), UMEM_NOFAIL
);
2032 zgd_private
->z_zd
= zd
;
2033 zgd_private
->z_object
= object
;
2034 zgd
->zgd_private
= zgd_private
;
2036 if (buf
!= NULL
) { /* immediate write */
2037 zgd_private
->z_rl
= ztest_range_lock(zd
, object
, offset
, size
,
2040 error
= dmu_read(os
, object
, offset
, size
, buf
,
2041 DMU_READ_NO_PREFETCH
);
2044 size
= doi
.doi_data_block_size
;
2046 offset
= P2ALIGN(offset
, size
);
2048 ASSERT(offset
< size
);
2052 zgd_private
->z_rl
= ztest_range_lock(zd
, object
, offset
, size
,
2055 error
= dmu_buf_hold(os
, object
, offset
, zgd
, &db
,
2056 DMU_READ_NO_PREFETCH
);
2059 blkptr_t
*obp
= dmu_buf_get_blkptr(db
);
2061 ASSERT(BP_IS_HOLE(bp
));
2068 ASSERT(db
->db_offset
== offset
);
2069 ASSERT(db
->db_size
== size
);
2071 error
= dmu_sync(zio
, lr
->lr_common
.lrc_txg
,
2072 ztest_get_done
, zgd
);
2079 ztest_get_done(zgd
, error
);
2085 ztest_lr_alloc(size_t lrsize
, char *name
)
2088 size_t namesize
= name
? strlen(name
) + 1 : 0;
2090 lr
= umem_zalloc(lrsize
+ namesize
, UMEM_NOFAIL
);
2093 bcopy(name
, lr
+ lrsize
, namesize
);
2099 ztest_lr_free(void *lr
, size_t lrsize
, char *name
)
2101 size_t namesize
= name
? strlen(name
) + 1 : 0;
2103 umem_free(lr
, lrsize
+ namesize
);
2107 * Lookup a bunch of objects. Returns the number of objects not found.
2110 ztest_lookup(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
2116 ASSERT(mutex_held(&zd
->zd_dirobj_lock
));
2118 for (i
= 0; i
< count
; i
++, od
++) {
2120 error
= zap_lookup(zd
->zd_os
, od
->od_dir
, od
->od_name
,
2121 sizeof (uint64_t), 1, &od
->od_object
);
2123 ASSERT(error
== ENOENT
);
2124 ASSERT(od
->od_object
== 0);
2128 ztest_block_tag_t
*bbt
;
2129 dmu_object_info_t doi
;
2131 ASSERT(od
->od_object
!= 0);
2132 ASSERT(missing
== 0); /* there should be no gaps */
2134 ztest_object_lock(zd
, od
->od_object
, RL_READER
);
2135 VERIFY3U(0, ==, dmu_bonus_hold(zd
->zd_os
,
2136 od
->od_object
, FTAG
, &db
));
2137 dmu_object_info_from_db(db
, &doi
);
2138 bbt
= ztest_bt_bonus(db
);
2139 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
2140 od
->od_type
= doi
.doi_type
;
2141 od
->od_blocksize
= doi
.doi_data_block_size
;
2142 od
->od_gen
= bbt
->bt_gen
;
2143 dmu_buf_rele(db
, FTAG
);
2144 ztest_object_unlock(zd
, od
->od_object
);
2152 ztest_create(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
2157 ASSERT(mutex_held(&zd
->zd_dirobj_lock
));
2159 for (i
= 0; i
< count
; i
++, od
++) {
2166 lr_create_t
*lr
= ztest_lr_alloc(sizeof (*lr
), od
->od_name
);
2168 lr
->lr_doid
= od
->od_dir
;
2169 lr
->lr_foid
= 0; /* 0 to allocate, > 0 to claim */
2170 lr
->lrz_type
= od
->od_crtype
;
2171 lr
->lrz_blocksize
= od
->od_crblocksize
;
2172 lr
->lrz_ibshift
= ztest_random_ibshift();
2173 lr
->lrz_bonustype
= DMU_OT_UINT64_OTHER
;
2174 lr
->lrz_bonuslen
= dmu_bonus_max();
2175 lr
->lr_gen
= od
->od_crgen
;
2176 lr
->lr_crtime
[0] = time(NULL
);
2178 if (ztest_replay_create(zd
, lr
, B_FALSE
) != 0) {
2179 ASSERT(missing
== 0);
2183 od
->od_object
= lr
->lr_foid
;
2184 od
->od_type
= od
->od_crtype
;
2185 od
->od_blocksize
= od
->od_crblocksize
;
2186 od
->od_gen
= od
->od_crgen
;
2187 ASSERT(od
->od_object
!= 0);
2190 ztest_lr_free(lr
, sizeof (*lr
), od
->od_name
);
2197 ztest_remove(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
2203 ASSERT(mutex_held(&zd
->zd_dirobj_lock
));
2207 for (i
= count
- 1; i
>= 0; i
--, od
--) {
2214 * No object was found.
2216 if (od
->od_object
== 0)
2219 lr_remove_t
*lr
= ztest_lr_alloc(sizeof (*lr
), od
->od_name
);
2221 lr
->lr_doid
= od
->od_dir
;
2223 if ((error
= ztest_replay_remove(zd
, lr
, B_FALSE
)) != 0) {
2224 ASSERT3U(error
, ==, ENOSPC
);
2229 ztest_lr_free(lr
, sizeof (*lr
), od
->od_name
);
2236 ztest_write(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
,
2242 lr
= ztest_lr_alloc(sizeof (*lr
) + size
, NULL
);
2244 lr
->lr_foid
= object
;
2245 lr
->lr_offset
= offset
;
2246 lr
->lr_length
= size
;
2248 BP_ZERO(&lr
->lr_blkptr
);
2250 bcopy(data
, lr
+ 1, size
);
2252 error
= ztest_replay_write(zd
, lr
, B_FALSE
);
2254 ztest_lr_free(lr
, sizeof (*lr
) + size
, NULL
);
2260 ztest_truncate(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
)
2265 lr
= ztest_lr_alloc(sizeof (*lr
), NULL
);
2267 lr
->lr_foid
= object
;
2268 lr
->lr_offset
= offset
;
2269 lr
->lr_length
= size
;
2271 error
= ztest_replay_truncate(zd
, lr
, B_FALSE
);
2273 ztest_lr_free(lr
, sizeof (*lr
), NULL
);
2279 ztest_setattr(ztest_ds_t
*zd
, uint64_t object
)
2284 lr
= ztest_lr_alloc(sizeof (*lr
), NULL
);
2286 lr
->lr_foid
= object
;
2290 error
= ztest_replay_setattr(zd
, lr
, B_FALSE
);
2292 ztest_lr_free(lr
, sizeof (*lr
), NULL
);
2298 ztest_prealloc(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
)
2300 objset_t
*os
= zd
->zd_os
;
2305 txg_wait_synced(dmu_objset_pool(os
), 0);
2307 ztest_object_lock(zd
, object
, RL_READER
);
2308 rl
= ztest_range_lock(zd
, object
, offset
, size
, RL_WRITER
);
2310 tx
= dmu_tx_create(os
);
2312 dmu_tx_hold_write(tx
, object
, offset
, size
);
2314 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
2317 dmu_prealloc(os
, object
, offset
, size
, tx
);
2319 txg_wait_synced(dmu_objset_pool(os
), txg
);
2321 (void) dmu_free_long_range(os
, object
, offset
, size
);
2324 ztest_range_unlock(zd
, rl
);
2325 ztest_object_unlock(zd
, object
);
2329 ztest_io(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
)
2332 ztest_block_tag_t wbt
;
2333 dmu_object_info_t doi
;
2334 enum ztest_io_type io_type
;
2338 VERIFY(dmu_object_info(zd
->zd_os
, object
, &doi
) == 0);
2339 blocksize
= doi
.doi_data_block_size
;
2340 data
= umem_alloc(blocksize
, UMEM_NOFAIL
);
2343 * Pick an i/o type at random, biased toward writing block tags.
2345 io_type
= ztest_random(ZTEST_IO_TYPES
);
2346 if (ztest_random(2) == 0)
2347 io_type
= ZTEST_IO_WRITE_TAG
;
2349 (void) rw_rdlock(&zd
->zd_zilog_lock
);
2353 case ZTEST_IO_WRITE_TAG
:
2354 ztest_bt_generate(&wbt
, zd
->zd_os
, object
, offset
, 0, 0, 0);
2355 (void) ztest_write(zd
, object
, offset
, sizeof (wbt
), &wbt
);
2358 case ZTEST_IO_WRITE_PATTERN
:
2359 (void) memset(data
, 'a' + (object
+ offset
) % 5, blocksize
);
2360 if (ztest_random(2) == 0) {
2362 * Induce fletcher2 collisions to ensure that
2363 * zio_ddt_collision() detects and resolves them
2364 * when using fletcher2-verify for deduplication.
2366 ((uint64_t *)data
)[0] ^= 1ULL << 63;
2367 ((uint64_t *)data
)[4] ^= 1ULL << 63;
2369 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2372 case ZTEST_IO_WRITE_ZEROES
:
2373 bzero(data
, blocksize
);
2374 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2377 case ZTEST_IO_TRUNCATE
:
2378 (void) ztest_truncate(zd
, object
, offset
, blocksize
);
2381 case ZTEST_IO_SETATTR
:
2382 (void) ztest_setattr(zd
, object
);
2387 case ZTEST_IO_REWRITE
:
2388 (void) rw_rdlock(&ztest_name_lock
);
2389 err
= ztest_dsl_prop_set_uint64(zd
->zd_name
,
2390 ZFS_PROP_CHECKSUM
, spa_dedup_checksum(ztest_spa
),
2392 VERIFY(err
== 0 || err
== ENOSPC
);
2393 err
= ztest_dsl_prop_set_uint64(zd
->zd_name
,
2394 ZFS_PROP_COMPRESSION
,
2395 ztest_random_dsl_prop(ZFS_PROP_COMPRESSION
),
2397 VERIFY(err
== 0 || err
== ENOSPC
);
2398 (void) rw_unlock(&ztest_name_lock
);
2400 VERIFY0(dmu_read(zd
->zd_os
, object
, offset
, blocksize
, data
,
2401 DMU_READ_NO_PREFETCH
));
2403 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2407 (void) rw_unlock(&zd
->zd_zilog_lock
);
2409 umem_free(data
, blocksize
);
2413 * Initialize an object description template.
2416 ztest_od_init(ztest_od_t
*od
, uint64_t id
, char *tag
, uint64_t index
,
2417 dmu_object_type_t type
, uint64_t blocksize
, uint64_t gen
)
2419 od
->od_dir
= ZTEST_DIROBJ
;
2422 od
->od_crtype
= type
;
2423 od
->od_crblocksize
= blocksize
? blocksize
: ztest_random_blocksize();
2426 od
->od_type
= DMU_OT_NONE
;
2427 od
->od_blocksize
= 0;
2430 (void) snprintf(od
->od_name
, sizeof (od
->od_name
), "%s(%lld)[%llu]",
2431 tag
, (longlong_t
)id
, (u_longlong_t
)index
);
2435 * Lookup or create the objects for a test using the od template.
2436 * If the objects do not all exist, or if 'remove' is specified,
2437 * remove any existing objects and create new ones. Otherwise,
2438 * use the existing objects.
2441 ztest_object_init(ztest_ds_t
*zd
, ztest_od_t
*od
, size_t size
, boolean_t remove
)
2443 int count
= size
/ sizeof (*od
);
2446 mutex_enter(&zd
->zd_dirobj_lock
);
2447 if ((ztest_lookup(zd
, od
, count
) != 0 || remove
) &&
2448 (ztest_remove(zd
, od
, count
) != 0 ||
2449 ztest_create(zd
, od
, count
) != 0))
2452 mutex_exit(&zd
->zd_dirobj_lock
);
2459 ztest_zil_commit(ztest_ds_t
*zd
, uint64_t id
)
2461 zilog_t
*zilog
= zd
->zd_zilog
;
2463 (void) rw_rdlock(&zd
->zd_zilog_lock
);
2465 zil_commit(zilog
, ztest_random(ZTEST_OBJECTS
));
2468 * Remember the committed values in zd, which is in parent/child
2469 * shared memory. If we die, the next iteration of ztest_run()
2470 * will verify that the log really does contain this record.
2472 mutex_enter(&zilog
->zl_lock
);
2473 ASSERT(zd
->zd_shared
!= NULL
);
2474 ASSERT3U(zd
->zd_shared
->zd_seq
, <=, zilog
->zl_commit_lr_seq
);
2475 zd
->zd_shared
->zd_seq
= zilog
->zl_commit_lr_seq
;
2476 mutex_exit(&zilog
->zl_lock
);
2478 (void) rw_unlock(&zd
->zd_zilog_lock
);
2482 * This function is designed to simulate the operations that occur during a
2483 * mount/unmount operation. We hold the dataset across these operations in an
2484 * attempt to expose any implicit assumptions about ZIL management.
2488 ztest_zil_remount(ztest_ds_t
*zd
, uint64_t id
)
2490 objset_t
*os
= zd
->zd_os
;
2493 * We grab the zd_dirobj_lock to ensure that no other thread is
2494 * updating the zil (i.e. adding in-memory log records) and the
2495 * zd_zilog_lock to block any I/O.
2497 mutex_enter(&zd
->zd_dirobj_lock
);
2498 (void) rw_wrlock(&zd
->zd_zilog_lock
);
2500 /* zfs_sb_teardown() */
2501 zil_close(zd
->zd_zilog
);
2503 /* zfsvfs_setup() */
2504 VERIFY(zil_open(os
, ztest_get_data
) == zd
->zd_zilog
);
2505 zil_replay(os
, zd
, ztest_replay_vector
);
2507 (void) rw_unlock(&zd
->zd_zilog_lock
);
2508 mutex_exit(&zd
->zd_dirobj_lock
);
2512 * Verify that we can't destroy an active pool, create an existing pool,
2513 * or create a pool with a bad vdev spec.
2517 ztest_spa_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
2519 ztest_shared_opts_t
*zo
= &ztest_opts
;
2524 * Attempt to create using a bad file.
2526 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 0, 1);
2527 VERIFY3U(ENOENT
, ==,
2528 spa_create("ztest_bad_file", nvroot
, NULL
, NULL
));
2529 nvlist_free(nvroot
);
2532 * Attempt to create using a bad mirror.
2534 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 2, 1);
2535 VERIFY3U(ENOENT
, ==,
2536 spa_create("ztest_bad_mirror", nvroot
, NULL
, NULL
));
2537 nvlist_free(nvroot
);
2540 * Attempt to create an existing pool. It shouldn't matter
2541 * what's in the nvroot; we should fail with EEXIST.
2543 (void) rw_rdlock(&ztest_name_lock
);
2544 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 0, 1);
2545 VERIFY3U(EEXIST
, ==, spa_create(zo
->zo_pool
, nvroot
, NULL
, NULL
));
2546 nvlist_free(nvroot
);
2547 VERIFY3U(0, ==, spa_open(zo
->zo_pool
, &spa
, FTAG
));
2548 VERIFY3U(EBUSY
, ==, spa_destroy(zo
->zo_pool
));
2549 spa_close(spa
, FTAG
);
2551 (void) rw_unlock(&ztest_name_lock
);
2556 ztest_spa_upgrade(ztest_ds_t
*zd
, uint64_t id
)
2559 uint64_t initial_version
= SPA_VERSION_INITIAL
;
2560 uint64_t version
, newversion
;
2561 nvlist_t
*nvroot
, *props
;
2564 mutex_enter(&ztest_vdev_lock
);
2565 name
= kmem_asprintf("%s_upgrade", ztest_opts
.zo_pool
);
2568 * Clean up from previous runs.
2570 (void) spa_destroy(name
);
2572 nvroot
= make_vdev_root(NULL
, NULL
, name
, ztest_opts
.zo_vdev_size
, 0,
2573 0, ztest_opts
.zo_raidz
, ztest_opts
.zo_mirrors
, 1);
2576 * If we're configuring a RAIDZ device then make sure that the
2577 * the initial version is capable of supporting that feature.
2579 switch (ztest_opts
.zo_raidz_parity
) {
2582 initial_version
= SPA_VERSION_INITIAL
;
2585 initial_version
= SPA_VERSION_RAIDZ2
;
2588 initial_version
= SPA_VERSION_RAIDZ3
;
2593 * Create a pool with a spa version that can be upgraded. Pick
2594 * a value between initial_version and SPA_VERSION_BEFORE_FEATURES.
2597 version
= ztest_random_spa_version(initial_version
);
2598 } while (version
> SPA_VERSION_BEFORE_FEATURES
);
2600 props
= fnvlist_alloc();
2601 fnvlist_add_uint64(props
,
2602 zpool_prop_to_name(ZPOOL_PROP_VERSION
), version
);
2603 VERIFY3S(spa_create(name
, nvroot
, props
, NULL
), ==, 0);
2604 fnvlist_free(nvroot
);
2605 fnvlist_free(props
);
2607 VERIFY3S(spa_open(name
, &spa
, FTAG
), ==, 0);
2608 VERIFY3U(spa_version(spa
), ==, version
);
2609 newversion
= ztest_random_spa_version(version
+ 1);
2611 if (ztest_opts
.zo_verbose
>= 4) {
2612 (void) printf("upgrading spa version from %llu to %llu\n",
2613 (u_longlong_t
)version
, (u_longlong_t
)newversion
);
2616 spa_upgrade(spa
, newversion
);
2617 VERIFY3U(spa_version(spa
), >, version
);
2618 VERIFY3U(spa_version(spa
), ==, fnvlist_lookup_uint64(spa
->spa_config
,
2619 zpool_prop_to_name(ZPOOL_PROP_VERSION
)));
2620 spa_close(spa
, FTAG
);
2623 mutex_exit(&ztest_vdev_lock
);
2627 vdev_lookup_by_path(vdev_t
*vd
, const char *path
)
2632 if (vd
->vdev_path
!= NULL
&& strcmp(path
, vd
->vdev_path
) == 0)
2635 for (c
= 0; c
< vd
->vdev_children
; c
++)
2636 if ((mvd
= vdev_lookup_by_path(vd
->vdev_child
[c
], path
)) !=
2644 * Find the first available hole which can be used as a top-level.
2647 find_vdev_hole(spa_t
*spa
)
2649 vdev_t
*rvd
= spa
->spa_root_vdev
;
2652 ASSERT(spa_config_held(spa
, SCL_VDEV
, RW_READER
) == SCL_VDEV
);
2654 for (c
= 0; c
< rvd
->vdev_children
; c
++) {
2655 vdev_t
*cvd
= rvd
->vdev_child
[c
];
2657 if (cvd
->vdev_ishole
)
2664 * Verify that vdev_add() works as expected.
2668 ztest_vdev_add_remove(ztest_ds_t
*zd
, uint64_t id
)
2670 ztest_shared_t
*zs
= ztest_shared
;
2671 spa_t
*spa
= ztest_spa
;
2677 mutex_enter(&ztest_vdev_lock
);
2678 leaves
= MAX(zs
->zs_mirrors
+ zs
->zs_splits
, 1) * ztest_opts
.zo_raidz
;
2680 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2682 ztest_shared
->zs_vdev_next_leaf
= find_vdev_hole(spa
) * leaves
;
2685 * If we have slogs then remove them 1/4 of the time.
2687 if (spa_has_slogs(spa
) && ztest_random(4) == 0) {
2689 * Grab the guid from the head of the log class rotor.
2691 guid
= spa_log_class(spa
)->mc_rotor
->mg_vd
->vdev_guid
;
2693 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2696 * We have to grab the zs_name_lock as writer to
2697 * prevent a race between removing a slog (dmu_objset_find)
2698 * and destroying a dataset. Removing the slog will
2699 * grab a reference on the dataset which may cause
2700 * dsl_destroy_head() to fail with EBUSY thus
2701 * leaving the dataset in an inconsistent state.
2703 rw_wrlock(&ztest_name_lock
);
2704 error
= spa_vdev_remove(spa
, guid
, B_FALSE
);
2705 rw_unlock(&ztest_name_lock
);
2707 if (error
&& error
!= EEXIST
)
2708 fatal(0, "spa_vdev_remove() = %d", error
);
2710 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2713 * Make 1/4 of the devices be log devices.
2715 nvroot
= make_vdev_root(NULL
, NULL
, NULL
,
2716 ztest_opts
.zo_vdev_size
, 0,
2717 ztest_random(4) == 0, ztest_opts
.zo_raidz
,
2720 error
= spa_vdev_add(spa
, nvroot
);
2721 nvlist_free(nvroot
);
2723 if (error
== ENOSPC
)
2724 ztest_record_enospc("spa_vdev_add");
2725 else if (error
!= 0)
2726 fatal(0, "spa_vdev_add() = %d", error
);
2729 mutex_exit(&ztest_vdev_lock
);
2733 * Verify that adding/removing aux devices (l2arc, hot spare) works as expected.
2737 ztest_vdev_aux_add_remove(ztest_ds_t
*zd
, uint64_t id
)
2739 ztest_shared_t
*zs
= ztest_shared
;
2740 spa_t
*spa
= ztest_spa
;
2741 vdev_t
*rvd
= spa
->spa_root_vdev
;
2742 spa_aux_vdev_t
*sav
;
2748 path
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
2750 if (ztest_random(2) == 0) {
2751 sav
= &spa
->spa_spares
;
2752 aux
= ZPOOL_CONFIG_SPARES
;
2754 sav
= &spa
->spa_l2cache
;
2755 aux
= ZPOOL_CONFIG_L2CACHE
;
2758 mutex_enter(&ztest_vdev_lock
);
2760 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2762 if (sav
->sav_count
!= 0 && ztest_random(4) == 0) {
2764 * Pick a random device to remove.
2766 guid
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)]->vdev_guid
;
2769 * Find an unused device we can add.
2771 zs
->zs_vdev_aux
= 0;
2774 (void) snprintf(path
, MAXPATHLEN
, ztest_aux_template
,
2775 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
, aux
,
2777 for (c
= 0; c
< sav
->sav_count
; c
++)
2778 if (strcmp(sav
->sav_vdevs
[c
]->vdev_path
,
2781 if (c
== sav
->sav_count
&&
2782 vdev_lookup_by_path(rvd
, path
) == NULL
)
2788 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2794 nvlist_t
*nvroot
= make_vdev_root(NULL
, aux
, NULL
,
2795 (ztest_opts
.zo_vdev_size
* 5) / 4, 0, 0, 0, 0, 1);
2796 error
= spa_vdev_add(spa
, nvroot
);
2798 fatal(0, "spa_vdev_add(%p) = %d", nvroot
, error
);
2799 nvlist_free(nvroot
);
2802 * Remove an existing device. Sometimes, dirty its
2803 * vdev state first to make sure we handle removal
2804 * of devices that have pending state changes.
2806 if (ztest_random(2) == 0)
2807 (void) vdev_online(spa
, guid
, 0, NULL
);
2809 error
= spa_vdev_remove(spa
, guid
, B_FALSE
);
2810 if (error
!= 0 && error
!= EBUSY
)
2811 fatal(0, "spa_vdev_remove(%llu) = %d", guid
, error
);
2814 mutex_exit(&ztest_vdev_lock
);
2816 umem_free(path
, MAXPATHLEN
);
2820 * split a pool if it has mirror tlvdevs
2824 ztest_split_pool(ztest_ds_t
*zd
, uint64_t id
)
2826 ztest_shared_t
*zs
= ztest_shared
;
2827 spa_t
*spa
= ztest_spa
;
2828 vdev_t
*rvd
= spa
->spa_root_vdev
;
2829 nvlist_t
*tree
, **child
, *config
, *split
, **schild
;
2830 uint_t c
, children
, schildren
= 0, lastlogid
= 0;
2833 mutex_enter(&ztest_vdev_lock
);
2835 /* ensure we have a useable config; mirrors of raidz aren't supported */
2836 if (zs
->zs_mirrors
< 3 || ztest_opts
.zo_raidz
> 1) {
2837 mutex_exit(&ztest_vdev_lock
);
2841 /* clean up the old pool, if any */
2842 (void) spa_destroy("splitp");
2844 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2846 /* generate a config from the existing config */
2847 mutex_enter(&spa
->spa_props_lock
);
2848 VERIFY(nvlist_lookup_nvlist(spa
->spa_config
, ZPOOL_CONFIG_VDEV_TREE
,
2850 mutex_exit(&spa
->spa_props_lock
);
2852 VERIFY(nvlist_lookup_nvlist_array(tree
, ZPOOL_CONFIG_CHILDREN
, &child
,
2855 schild
= malloc(rvd
->vdev_children
* sizeof (nvlist_t
*));
2856 for (c
= 0; c
< children
; c
++) {
2857 vdev_t
*tvd
= rvd
->vdev_child
[c
];
2861 if (tvd
->vdev_islog
|| tvd
->vdev_ops
== &vdev_hole_ops
) {
2862 VERIFY(nvlist_alloc(&schild
[schildren
], NV_UNIQUE_NAME
,
2864 VERIFY(nvlist_add_string(schild
[schildren
],
2865 ZPOOL_CONFIG_TYPE
, VDEV_TYPE_HOLE
) == 0);
2866 VERIFY(nvlist_add_uint64(schild
[schildren
],
2867 ZPOOL_CONFIG_IS_HOLE
, 1) == 0);
2869 lastlogid
= schildren
;
2874 VERIFY(nvlist_lookup_nvlist_array(child
[c
],
2875 ZPOOL_CONFIG_CHILDREN
, &mchild
, &mchildren
) == 0);
2876 VERIFY(nvlist_dup(mchild
[0], &schild
[schildren
++], 0) == 0);
2879 /* OK, create a config that can be used to split */
2880 VERIFY(nvlist_alloc(&split
, NV_UNIQUE_NAME
, 0) == 0);
2881 VERIFY(nvlist_add_string(split
, ZPOOL_CONFIG_TYPE
,
2882 VDEV_TYPE_ROOT
) == 0);
2883 VERIFY(nvlist_add_nvlist_array(split
, ZPOOL_CONFIG_CHILDREN
, schild
,
2884 lastlogid
!= 0 ? lastlogid
: schildren
) == 0);
2886 VERIFY(nvlist_alloc(&config
, NV_UNIQUE_NAME
, 0) == 0);
2887 VERIFY(nvlist_add_nvlist(config
, ZPOOL_CONFIG_VDEV_TREE
, split
) == 0);
2889 for (c
= 0; c
< schildren
; c
++)
2890 nvlist_free(schild
[c
]);
2894 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2896 (void) rw_wrlock(&ztest_name_lock
);
2897 error
= spa_vdev_split_mirror(spa
, "splitp", config
, NULL
, B_FALSE
);
2898 (void) rw_unlock(&ztest_name_lock
);
2900 nvlist_free(config
);
2903 (void) printf("successful split - results:\n");
2904 mutex_enter(&spa_namespace_lock
);
2905 show_pool_stats(spa
);
2906 show_pool_stats(spa_lookup("splitp"));
2907 mutex_exit(&spa_namespace_lock
);
2911 mutex_exit(&ztest_vdev_lock
);
2916 * Verify that we can attach and detach devices.
2920 ztest_vdev_attach_detach(ztest_ds_t
*zd
, uint64_t id
)
2922 ztest_shared_t
*zs
= ztest_shared
;
2923 spa_t
*spa
= ztest_spa
;
2924 spa_aux_vdev_t
*sav
= &spa
->spa_spares
;
2925 vdev_t
*rvd
= spa
->spa_root_vdev
;
2926 vdev_t
*oldvd
, *newvd
, *pvd
;
2930 uint64_t ashift
= ztest_get_ashift();
2931 uint64_t oldguid
, pguid
;
2932 uint64_t oldsize
, newsize
;
2933 char *oldpath
, *newpath
;
2935 int oldvd_has_siblings
= B_FALSE
;
2936 int newvd_is_spare
= B_FALSE
;
2938 int error
, expected_error
;
2940 oldpath
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
2941 newpath
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
2943 mutex_enter(&ztest_vdev_lock
);
2944 leaves
= MAX(zs
->zs_mirrors
, 1) * ztest_opts
.zo_raidz
;
2946 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2949 * Decide whether to do an attach or a replace.
2951 replacing
= ztest_random(2);
2954 * Pick a random top-level vdev.
2956 top
= ztest_random_vdev_top(spa
, B_TRUE
);
2959 * Pick a random leaf within it.
2961 leaf
= ztest_random(leaves
);
2966 oldvd
= rvd
->vdev_child
[top
];
2967 if (zs
->zs_mirrors
>= 1) {
2968 ASSERT(oldvd
->vdev_ops
== &vdev_mirror_ops
);
2969 ASSERT(oldvd
->vdev_children
>= zs
->zs_mirrors
);
2970 oldvd
= oldvd
->vdev_child
[leaf
/ ztest_opts
.zo_raidz
];
2972 if (ztest_opts
.zo_raidz
> 1) {
2973 ASSERT(oldvd
->vdev_ops
== &vdev_raidz_ops
);
2974 ASSERT(oldvd
->vdev_children
== ztest_opts
.zo_raidz
);
2975 oldvd
= oldvd
->vdev_child
[leaf
% ztest_opts
.zo_raidz
];
2979 * If we're already doing an attach or replace, oldvd may be a
2980 * mirror vdev -- in which case, pick a random child.
2982 while (oldvd
->vdev_children
!= 0) {
2983 oldvd_has_siblings
= B_TRUE
;
2984 ASSERT(oldvd
->vdev_children
>= 2);
2985 oldvd
= oldvd
->vdev_child
[ztest_random(oldvd
->vdev_children
)];
2988 oldguid
= oldvd
->vdev_guid
;
2989 oldsize
= vdev_get_min_asize(oldvd
);
2990 oldvd_is_log
= oldvd
->vdev_top
->vdev_islog
;
2991 (void) strcpy(oldpath
, oldvd
->vdev_path
);
2992 pvd
= oldvd
->vdev_parent
;
2993 pguid
= pvd
->vdev_guid
;
2996 * If oldvd has siblings, then half of the time, detach it.
2998 if (oldvd_has_siblings
&& ztest_random(2) == 0) {
2999 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
3000 error
= spa_vdev_detach(spa
, oldguid
, pguid
, B_FALSE
);
3001 if (error
!= 0 && error
!= ENODEV
&& error
!= EBUSY
&&
3003 fatal(0, "detach (%s) returned %d", oldpath
, error
);
3008 * For the new vdev, choose with equal probability between the two
3009 * standard paths (ending in either 'a' or 'b') or a random hot spare.
3011 if (sav
->sav_count
!= 0 && ztest_random(3) == 0) {
3012 newvd
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)];
3013 newvd_is_spare
= B_TRUE
;
3014 (void) strcpy(newpath
, newvd
->vdev_path
);
3016 (void) snprintf(newpath
, MAXPATHLEN
, ztest_dev_template
,
3017 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
3018 top
* leaves
+ leaf
);
3019 if (ztest_random(2) == 0)
3020 newpath
[strlen(newpath
) - 1] = 'b';
3021 newvd
= vdev_lookup_by_path(rvd
, newpath
);
3025 newsize
= vdev_get_min_asize(newvd
);
3028 * Make newsize a little bigger or smaller than oldsize.
3029 * If it's smaller, the attach should fail.
3030 * If it's larger, and we're doing a replace,
3031 * we should get dynamic LUN growth when we're done.
3033 newsize
= 10 * oldsize
/ (9 + ztest_random(3));
3037 * If pvd is not a mirror or root, the attach should fail with ENOTSUP,
3038 * unless it's a replace; in that case any non-replacing parent is OK.
3040 * If newvd is already part of the pool, it should fail with EBUSY.
3042 * If newvd is too small, it should fail with EOVERFLOW.
3044 if (pvd
->vdev_ops
!= &vdev_mirror_ops
&&
3045 pvd
->vdev_ops
!= &vdev_root_ops
&& (!replacing
||
3046 pvd
->vdev_ops
== &vdev_replacing_ops
||
3047 pvd
->vdev_ops
== &vdev_spare_ops
))
3048 expected_error
= ENOTSUP
;
3049 else if (newvd_is_spare
&& (!replacing
|| oldvd_is_log
))
3050 expected_error
= ENOTSUP
;
3051 else if (newvd
== oldvd
)
3052 expected_error
= replacing
? 0 : EBUSY
;
3053 else if (vdev_lookup_by_path(rvd
, newpath
) != NULL
)
3054 expected_error
= EBUSY
;
3055 else if (newsize
< oldsize
)
3056 expected_error
= EOVERFLOW
;
3057 else if (ashift
> oldvd
->vdev_top
->vdev_ashift
)
3058 expected_error
= EDOM
;
3062 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
3065 * Build the nvlist describing newpath.
3067 root
= make_vdev_root(newpath
, NULL
, NULL
, newvd
== NULL
? newsize
: 0,
3068 ashift
, 0, 0, 0, 1);
3070 error
= spa_vdev_attach(spa
, oldguid
, root
, replacing
);
3075 * If our parent was the replacing vdev, but the replace completed,
3076 * then instead of failing with ENOTSUP we may either succeed,
3077 * fail with ENODEV, or fail with EOVERFLOW.
3079 if (expected_error
== ENOTSUP
&&
3080 (error
== 0 || error
== ENODEV
|| error
== EOVERFLOW
))
3081 expected_error
= error
;
3084 * If someone grew the LUN, the replacement may be too small.
3086 if (error
== EOVERFLOW
|| error
== EBUSY
)
3087 expected_error
= error
;
3089 /* XXX workaround 6690467 */
3090 if (error
!= expected_error
&& expected_error
!= EBUSY
) {
3091 fatal(0, "attach (%s %llu, %s %llu, %d) "
3092 "returned %d, expected %d",
3093 oldpath
, oldsize
, newpath
,
3094 newsize
, replacing
, error
, expected_error
);
3097 mutex_exit(&ztest_vdev_lock
);
3099 umem_free(oldpath
, MAXPATHLEN
);
3100 umem_free(newpath
, MAXPATHLEN
);
3104 * Callback function which expands the physical size of the vdev.
3107 grow_vdev(vdev_t
*vd
, void *arg
)
3109 ASSERTV(spa_t
*spa
= vd
->vdev_spa
);
3110 size_t *newsize
= arg
;
3114 ASSERT(spa_config_held(spa
, SCL_STATE
, RW_READER
) == SCL_STATE
);
3115 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
3117 if ((fd
= open(vd
->vdev_path
, O_RDWR
)) == -1)
3120 fsize
= lseek(fd
, 0, SEEK_END
);
3121 VERIFY(ftruncate(fd
, *newsize
) == 0);
3123 if (ztest_opts
.zo_verbose
>= 6) {
3124 (void) printf("%s grew from %lu to %lu bytes\n",
3125 vd
->vdev_path
, (ulong_t
)fsize
, (ulong_t
)*newsize
);
3132 * Callback function which expands a given vdev by calling vdev_online().
3136 online_vdev(vdev_t
*vd
, void *arg
)
3138 spa_t
*spa
= vd
->vdev_spa
;
3139 vdev_t
*tvd
= vd
->vdev_top
;
3140 uint64_t guid
= vd
->vdev_guid
;
3141 uint64_t generation
= spa
->spa_config_generation
+ 1;
3142 vdev_state_t newstate
= VDEV_STATE_UNKNOWN
;
3145 ASSERT(spa_config_held(spa
, SCL_STATE
, RW_READER
) == SCL_STATE
);
3146 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
3148 /* Calling vdev_online will initialize the new metaslabs */
3149 spa_config_exit(spa
, SCL_STATE
, spa
);
3150 error
= vdev_online(spa
, guid
, ZFS_ONLINE_EXPAND
, &newstate
);
3151 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3154 * If vdev_online returned an error or the underlying vdev_open
3155 * failed then we abort the expand. The only way to know that
3156 * vdev_open fails is by checking the returned newstate.
3158 if (error
|| newstate
!= VDEV_STATE_HEALTHY
) {
3159 if (ztest_opts
.zo_verbose
>= 5) {
3160 (void) printf("Unable to expand vdev, state %llu, "
3161 "error %d\n", (u_longlong_t
)newstate
, error
);
3165 ASSERT3U(newstate
, ==, VDEV_STATE_HEALTHY
);
3168 * Since we dropped the lock we need to ensure that we're
3169 * still talking to the original vdev. It's possible this
3170 * vdev may have been detached/replaced while we were
3171 * trying to online it.
3173 if (generation
!= spa
->spa_config_generation
) {
3174 if (ztest_opts
.zo_verbose
>= 5) {
3175 (void) printf("vdev configuration has changed, "
3176 "guid %llu, state %llu, expected gen %llu, "
3179 (u_longlong_t
)tvd
->vdev_state
,
3180 (u_longlong_t
)generation
,
3181 (u_longlong_t
)spa
->spa_config_generation
);
3189 * Traverse the vdev tree calling the supplied function.
3190 * We continue to walk the tree until we either have walked all
3191 * children or we receive a non-NULL return from the callback.
3192 * If a NULL callback is passed, then we just return back the first
3193 * leaf vdev we encounter.
3196 vdev_walk_tree(vdev_t
*vd
, vdev_t
*(*func
)(vdev_t
*, void *), void *arg
)
3200 if (vd
->vdev_ops
->vdev_op_leaf
) {
3204 return (func(vd
, arg
));
3207 for (c
= 0; c
< vd
->vdev_children
; c
++) {
3208 vdev_t
*cvd
= vd
->vdev_child
[c
];
3209 if ((cvd
= vdev_walk_tree(cvd
, func
, arg
)) != NULL
)
3216 * Verify that dynamic LUN growth works as expected.
3220 ztest_vdev_LUN_growth(ztest_ds_t
*zd
, uint64_t id
)
3222 spa_t
*spa
= ztest_spa
;
3224 metaslab_class_t
*mc
;
3225 metaslab_group_t
*mg
;
3226 size_t psize
, newsize
;
3228 uint64_t old_class_space
, new_class_space
, old_ms_count
, new_ms_count
;
3230 mutex_enter(&ztest_vdev_lock
);
3231 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3233 top
= ztest_random_vdev_top(spa
, B_TRUE
);
3235 tvd
= spa
->spa_root_vdev
->vdev_child
[top
];
3238 old_ms_count
= tvd
->vdev_ms_count
;
3239 old_class_space
= metaslab_class_get_space(mc
);
3242 * Determine the size of the first leaf vdev associated with
3243 * our top-level device.
3245 vd
= vdev_walk_tree(tvd
, NULL
, NULL
);
3246 ASSERT3P(vd
, !=, NULL
);
3247 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
3249 psize
= vd
->vdev_psize
;
3252 * We only try to expand the vdev if it's healthy, less than 4x its
3253 * original size, and it has a valid psize.
3255 if (tvd
->vdev_state
!= VDEV_STATE_HEALTHY
||
3256 psize
== 0 || psize
>= 4 * ztest_opts
.zo_vdev_size
) {
3257 spa_config_exit(spa
, SCL_STATE
, spa
);
3258 mutex_exit(&ztest_vdev_lock
);
3262 newsize
= psize
+ psize
/ 8;
3263 ASSERT3U(newsize
, >, psize
);
3265 if (ztest_opts
.zo_verbose
>= 6) {
3266 (void) printf("Expanding LUN %s from %lu to %lu\n",
3267 vd
->vdev_path
, (ulong_t
)psize
, (ulong_t
)newsize
);
3271 * Growing the vdev is a two step process:
3272 * 1). expand the physical size (i.e. relabel)
3273 * 2). online the vdev to create the new metaslabs
3275 if (vdev_walk_tree(tvd
, grow_vdev
, &newsize
) != NULL
||
3276 vdev_walk_tree(tvd
, online_vdev
, NULL
) != NULL
||
3277 tvd
->vdev_state
!= VDEV_STATE_HEALTHY
) {
3278 if (ztest_opts
.zo_verbose
>= 5) {
3279 (void) printf("Could not expand LUN because "
3280 "the vdev configuration changed.\n");
3282 spa_config_exit(spa
, SCL_STATE
, spa
);
3283 mutex_exit(&ztest_vdev_lock
);
3287 spa_config_exit(spa
, SCL_STATE
, spa
);
3290 * Expanding the LUN will update the config asynchronously,
3291 * thus we must wait for the async thread to complete any
3292 * pending tasks before proceeding.
3296 mutex_enter(&spa
->spa_async_lock
);
3297 done
= (spa
->spa_async_thread
== NULL
&& !spa
->spa_async_tasks
);
3298 mutex_exit(&spa
->spa_async_lock
);
3301 txg_wait_synced(spa_get_dsl(spa
), 0);
3302 (void) poll(NULL
, 0, 100);
3305 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3307 tvd
= spa
->spa_root_vdev
->vdev_child
[top
];
3308 new_ms_count
= tvd
->vdev_ms_count
;
3309 new_class_space
= metaslab_class_get_space(mc
);
3311 if (tvd
->vdev_mg
!= mg
|| mg
->mg_class
!= mc
) {
3312 if (ztest_opts
.zo_verbose
>= 5) {
3313 (void) printf("Could not verify LUN expansion due to "
3314 "intervening vdev offline or remove.\n");
3316 spa_config_exit(spa
, SCL_STATE
, spa
);
3317 mutex_exit(&ztest_vdev_lock
);
3322 * Make sure we were able to grow the vdev.
3324 if (new_ms_count
<= old_ms_count
)
3325 fatal(0, "LUN expansion failed: ms_count %llu <= %llu\n",
3326 old_ms_count
, new_ms_count
);
3329 * Make sure we were able to grow the pool.
3331 if (new_class_space
<= old_class_space
)
3332 fatal(0, "LUN expansion failed: class_space %llu <= %llu\n",
3333 old_class_space
, new_class_space
);
3335 if (ztest_opts
.zo_verbose
>= 5) {
3336 char oldnumbuf
[6], newnumbuf
[6];
3338 nicenum(old_class_space
, oldnumbuf
);
3339 nicenum(new_class_space
, newnumbuf
);
3340 (void) printf("%s grew from %s to %s\n",
3341 spa
->spa_name
, oldnumbuf
, newnumbuf
);
3344 spa_config_exit(spa
, SCL_STATE
, spa
);
3345 mutex_exit(&ztest_vdev_lock
);
3349 * Verify that dmu_objset_{create,destroy,open,close} work as expected.
3353 ztest_objset_create_cb(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
)
3356 * Create the objects common to all ztest datasets.
3358 VERIFY(zap_create_claim(os
, ZTEST_DIROBJ
,
3359 DMU_OT_ZAP_OTHER
, DMU_OT_NONE
, 0, tx
) == 0);
3363 ztest_dataset_create(char *dsname
)
3365 uint64_t zilset
= ztest_random(100);
3366 int err
= dmu_objset_create(dsname
, DMU_OST_OTHER
, 0,
3367 ztest_objset_create_cb
, NULL
);
3369 if (err
|| zilset
< 80)
3372 if (ztest_opts
.zo_verbose
>= 5)
3373 (void) printf("Setting dataset %s to sync always\n", dsname
);
3374 return (ztest_dsl_prop_set_uint64(dsname
, ZFS_PROP_SYNC
,
3375 ZFS_SYNC_ALWAYS
, B_FALSE
));
3380 ztest_objset_destroy_cb(const char *name
, void *arg
)
3383 dmu_object_info_t doi
;
3387 * Verify that the dataset contains a directory object.
3389 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_TRUE
, FTAG
, &os
));
3390 error
= dmu_object_info(os
, ZTEST_DIROBJ
, &doi
);
3391 if (error
!= ENOENT
) {
3392 /* We could have crashed in the middle of destroying it */
3394 ASSERT3U(doi
.doi_type
, ==, DMU_OT_ZAP_OTHER
);
3395 ASSERT3S(doi
.doi_physical_blocks_512
, >=, 0);
3397 dmu_objset_disown(os
, FTAG
);
3400 * Destroy the dataset.
3402 if (strchr(name
, '@') != NULL
) {
3403 VERIFY0(dsl_destroy_snapshot(name
, B_FALSE
));
3405 VERIFY0(dsl_destroy_head(name
));
3411 ztest_snapshot_create(char *osname
, uint64_t id
)
3413 char snapname
[MAXNAMELEN
];
3416 (void) snprintf(snapname
, sizeof (snapname
), "%llu", (u_longlong_t
)id
);
3418 error
= dmu_objset_snapshot_one(osname
, snapname
);
3419 if (error
== ENOSPC
) {
3420 ztest_record_enospc(FTAG
);
3423 if (error
!= 0 && error
!= EEXIST
) {
3424 fatal(0, "ztest_snapshot_create(%s@%s) = %d", osname
,
3431 ztest_snapshot_destroy(char *osname
, uint64_t id
)
3433 char snapname
[MAXNAMELEN
];
3436 (void) snprintf(snapname
, MAXNAMELEN
, "%s@%llu", osname
,
3439 error
= dsl_destroy_snapshot(snapname
, B_FALSE
);
3440 if (error
!= 0 && error
!= ENOENT
)
3441 fatal(0, "ztest_snapshot_destroy(%s) = %d", snapname
, error
);
3447 ztest_dmu_objset_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
3457 zdtmp
= umem_alloc(sizeof (ztest_ds_t
), UMEM_NOFAIL
);
3458 name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3460 (void) rw_rdlock(&ztest_name_lock
);
3462 (void) snprintf(name
, MAXNAMELEN
, "%s/temp_%llu",
3463 ztest_opts
.zo_pool
, (u_longlong_t
)id
);
3466 * If this dataset exists from a previous run, process its replay log
3467 * half of the time. If we don't replay it, then dsl_destroy_head()
3468 * (invoked from ztest_objset_destroy_cb()) should just throw it away.
3470 if (ztest_random(2) == 0 &&
3471 dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os
) == 0) {
3472 ztest_zd_init(zdtmp
, NULL
, os
);
3473 zil_replay(os
, zdtmp
, ztest_replay_vector
);
3474 ztest_zd_fini(zdtmp
);
3475 dmu_objset_disown(os
, FTAG
);
3479 * There may be an old instance of the dataset we're about to
3480 * create lying around from a previous run. If so, destroy it
3481 * and all of its snapshots.
3483 (void) dmu_objset_find(name
, ztest_objset_destroy_cb
, NULL
,
3484 DS_FIND_CHILDREN
| DS_FIND_SNAPSHOTS
);
3487 * Verify that the destroyed dataset is no longer in the namespace.
3489 VERIFY3U(ENOENT
, ==, dmu_objset_own(name
, DMU_OST_OTHER
, B_TRUE
,
3493 * Verify that we can create a new dataset.
3495 error
= ztest_dataset_create(name
);
3497 if (error
== ENOSPC
) {
3498 ztest_record_enospc(FTAG
);
3501 fatal(0, "dmu_objset_create(%s) = %d", name
, error
);
3504 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os
));
3506 ztest_zd_init(zdtmp
, NULL
, os
);
3509 * Open the intent log for it.
3511 zilog
= zil_open(os
, ztest_get_data
);
3514 * Put some objects in there, do a little I/O to them,
3515 * and randomly take a couple of snapshots along the way.
3517 iters
= ztest_random(5);
3518 for (i
= 0; i
< iters
; i
++) {
3519 ztest_dmu_object_alloc_free(zdtmp
, id
);
3520 if (ztest_random(iters
) == 0)
3521 (void) ztest_snapshot_create(name
, i
);
3525 * Verify that we cannot create an existing dataset.
3527 VERIFY3U(EEXIST
, ==,
3528 dmu_objset_create(name
, DMU_OST_OTHER
, 0, NULL
, NULL
));
3531 * Verify that we can hold an objset that is also owned.
3533 VERIFY3U(0, ==, dmu_objset_hold(name
, FTAG
, &os2
));
3534 dmu_objset_rele(os2
, FTAG
);
3537 * Verify that we cannot own an objset that is already owned.
3540 dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os2
));
3543 dmu_objset_disown(os
, FTAG
);
3544 ztest_zd_fini(zdtmp
);
3546 (void) rw_unlock(&ztest_name_lock
);
3548 umem_free(name
, MAXNAMELEN
);
3549 umem_free(zdtmp
, sizeof (ztest_ds_t
));
3553 * Verify that dmu_snapshot_{create,destroy,open,close} work as expected.
3556 ztest_dmu_snapshot_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
3558 (void) rw_rdlock(&ztest_name_lock
);
3559 (void) ztest_snapshot_destroy(zd
->zd_name
, id
);
3560 (void) ztest_snapshot_create(zd
->zd_name
, id
);
3561 (void) rw_unlock(&ztest_name_lock
);
3565 * Cleanup non-standard snapshots and clones.
3568 ztest_dsl_dataset_cleanup(char *osname
, uint64_t id
)
3577 snap1name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3578 clone1name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3579 snap2name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3580 clone2name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3581 snap3name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3583 (void) snprintf(snap1name
, MAXNAMELEN
, "%s@s1_%llu",
3584 osname
, (u_longlong_t
)id
);
3585 (void) snprintf(clone1name
, MAXNAMELEN
, "%s/c1_%llu",
3586 osname
, (u_longlong_t
)id
);
3587 (void) snprintf(snap2name
, MAXNAMELEN
, "%s@s2_%llu",
3588 clone1name
, (u_longlong_t
)id
);
3589 (void) snprintf(clone2name
, MAXNAMELEN
, "%s/c2_%llu",
3590 osname
, (u_longlong_t
)id
);
3591 (void) snprintf(snap3name
, MAXNAMELEN
, "%s@s3_%llu",
3592 clone1name
, (u_longlong_t
)id
);
3594 error
= dsl_destroy_head(clone2name
);
3595 if (error
&& error
!= ENOENT
)
3596 fatal(0, "dsl_destroy_head(%s) = %d", clone2name
, error
);
3597 error
= dsl_destroy_snapshot(snap3name
, B_FALSE
);
3598 if (error
&& error
!= ENOENT
)
3599 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap3name
, error
);
3600 error
= dsl_destroy_snapshot(snap2name
, B_FALSE
);
3601 if (error
&& error
!= ENOENT
)
3602 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap2name
, error
);
3603 error
= dsl_destroy_head(clone1name
);
3604 if (error
&& error
!= ENOENT
)
3605 fatal(0, "dsl_destroy_head(%s) = %d", clone1name
, error
);
3606 error
= dsl_destroy_snapshot(snap1name
, B_FALSE
);
3607 if (error
&& error
!= ENOENT
)
3608 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap1name
, error
);
3610 umem_free(snap1name
, MAXNAMELEN
);
3611 umem_free(clone1name
, MAXNAMELEN
);
3612 umem_free(snap2name
, MAXNAMELEN
);
3613 umem_free(clone2name
, MAXNAMELEN
);
3614 umem_free(snap3name
, MAXNAMELEN
);
3618 * Verify dsl_dataset_promote handles EBUSY
3621 ztest_dsl_dataset_promote_busy(ztest_ds_t
*zd
, uint64_t id
)
3629 char *osname
= zd
->zd_name
;
3632 snap1name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3633 clone1name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3634 snap2name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3635 clone2name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3636 snap3name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3638 (void) rw_rdlock(&ztest_name_lock
);
3640 ztest_dsl_dataset_cleanup(osname
, id
);
3642 (void) snprintf(snap1name
, MAXNAMELEN
, "%s@s1_%llu",
3643 osname
, (u_longlong_t
)id
);
3644 (void) snprintf(clone1name
, MAXNAMELEN
, "%s/c1_%llu",
3645 osname
, (u_longlong_t
)id
);
3646 (void) snprintf(snap2name
, MAXNAMELEN
, "%s@s2_%llu",
3647 clone1name
, (u_longlong_t
)id
);
3648 (void) snprintf(clone2name
, MAXNAMELEN
, "%s/c2_%llu",
3649 osname
, (u_longlong_t
)id
);
3650 (void) snprintf(snap3name
, MAXNAMELEN
, "%s@s3_%llu",
3651 clone1name
, (u_longlong_t
)id
);
3653 error
= dmu_objset_snapshot_one(osname
, strchr(snap1name
, '@') + 1);
3654 if (error
&& error
!= EEXIST
) {
3655 if (error
== ENOSPC
) {
3656 ztest_record_enospc(FTAG
);
3659 fatal(0, "dmu_take_snapshot(%s) = %d", snap1name
, error
);
3662 error
= dmu_objset_clone(clone1name
, snap1name
);
3664 if (error
== ENOSPC
) {
3665 ztest_record_enospc(FTAG
);
3668 fatal(0, "dmu_objset_create(%s) = %d", clone1name
, error
);
3671 error
= dmu_objset_snapshot_one(clone1name
, strchr(snap2name
, '@') + 1);
3672 if (error
&& error
!= EEXIST
) {
3673 if (error
== ENOSPC
) {
3674 ztest_record_enospc(FTAG
);
3677 fatal(0, "dmu_open_snapshot(%s) = %d", snap2name
, error
);
3680 error
= dmu_objset_snapshot_one(clone1name
, strchr(snap3name
, '@') + 1);
3681 if (error
&& error
!= EEXIST
) {
3682 if (error
== ENOSPC
) {
3683 ztest_record_enospc(FTAG
);
3686 fatal(0, "dmu_open_snapshot(%s) = %d", snap3name
, error
);
3689 error
= dmu_objset_clone(clone2name
, snap3name
);
3691 if (error
== ENOSPC
) {
3692 ztest_record_enospc(FTAG
);
3695 fatal(0, "dmu_objset_create(%s) = %d", clone2name
, error
);
3698 error
= dmu_objset_own(snap2name
, DMU_OST_ANY
, B_TRUE
, FTAG
, &os
);
3700 fatal(0, "dmu_objset_own(%s) = %d", snap2name
, error
);
3701 error
= dsl_dataset_promote(clone2name
, NULL
);
3702 if (error
== ENOSPC
) {
3703 dmu_objset_disown(os
, FTAG
);
3704 ztest_record_enospc(FTAG
);
3708 fatal(0, "dsl_dataset_promote(%s), %d, not EBUSY", clone2name
,
3710 dmu_objset_disown(os
, FTAG
);
3713 ztest_dsl_dataset_cleanup(osname
, id
);
3715 (void) rw_unlock(&ztest_name_lock
);
3717 umem_free(snap1name
, MAXNAMELEN
);
3718 umem_free(clone1name
, MAXNAMELEN
);
3719 umem_free(snap2name
, MAXNAMELEN
);
3720 umem_free(clone2name
, MAXNAMELEN
);
3721 umem_free(snap3name
, MAXNAMELEN
);
3724 #undef OD_ARRAY_SIZE
3725 #define OD_ARRAY_SIZE 4
3728 * Verify that dmu_object_{alloc,free} work as expected.
3731 ztest_dmu_object_alloc_free(ztest_ds_t
*zd
, uint64_t id
)
3738 size
= sizeof (ztest_od_t
) * OD_ARRAY_SIZE
;
3739 od
= umem_alloc(size
, UMEM_NOFAIL
);
3740 batchsize
= OD_ARRAY_SIZE
;
3742 for (b
= 0; b
< batchsize
; b
++)
3743 ztest_od_init(od
+ b
, id
, FTAG
, b
, DMU_OT_UINT64_OTHER
, 0, 0);
3746 * Destroy the previous batch of objects, create a new batch,
3747 * and do some I/O on the new objects.
3749 if (ztest_object_init(zd
, od
, size
, B_TRUE
) != 0)
3752 while (ztest_random(4 * batchsize
) != 0)
3753 ztest_io(zd
, od
[ztest_random(batchsize
)].od_object
,
3754 ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
3756 umem_free(od
, size
);
3759 #undef OD_ARRAY_SIZE
3760 #define OD_ARRAY_SIZE 2
3763 * Verify that dmu_{read,write} work as expected.
3766 ztest_dmu_read_write(ztest_ds_t
*zd
, uint64_t id
)
3771 objset_t
*os
= zd
->zd_os
;
3772 size
= sizeof (ztest_od_t
) * OD_ARRAY_SIZE
;
3773 od
= umem_alloc(size
, UMEM_NOFAIL
);
3775 int i
, freeit
, error
;
3777 bufwad_t
*packbuf
, *bigbuf
, *pack
, *bigH
, *bigT
;
3778 uint64_t packobj
, packoff
, packsize
, bigobj
, bigoff
, bigsize
;
3779 uint64_t chunksize
= (1000 + ztest_random(1000)) * sizeof (uint64_t);
3780 uint64_t regions
= 997;
3781 uint64_t stride
= 123456789ULL;
3782 uint64_t width
= 40;
3783 int free_percent
= 5;
3786 * This test uses two objects, packobj and bigobj, that are always
3787 * updated together (i.e. in the same tx) so that their contents are
3788 * in sync and can be compared. Their contents relate to each other
3789 * in a simple way: packobj is a dense array of 'bufwad' structures,
3790 * while bigobj is a sparse array of the same bufwads. Specifically,
3791 * for any index n, there are three bufwads that should be identical:
3793 * packobj, at offset n * sizeof (bufwad_t)
3794 * bigobj, at the head of the nth chunk
3795 * bigobj, at the tail of the nth chunk
3797 * The chunk size is arbitrary. It doesn't have to be a power of two,
3798 * and it doesn't have any relation to the object blocksize.
3799 * The only requirement is that it can hold at least two bufwads.
3801 * Normally, we write the bufwad to each of these locations.
3802 * However, free_percent of the time we instead write zeroes to
3803 * packobj and perform a dmu_free_range() on bigobj. By comparing
3804 * bigobj to packobj, we can verify that the DMU is correctly
3805 * tracking which parts of an object are allocated and free,
3806 * and that the contents of the allocated blocks are correct.
3810 * Read the directory info. If it's the first time, set things up.
3812 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, chunksize
);
3813 ztest_od_init(od
+ 1, id
, FTAG
, 1, DMU_OT_UINT64_OTHER
, 0, chunksize
);
3815 if (ztest_object_init(zd
, od
, size
, B_FALSE
) != 0) {
3816 umem_free(od
, size
);
3820 bigobj
= od
[0].od_object
;
3821 packobj
= od
[1].od_object
;
3822 chunksize
= od
[0].od_gen
;
3823 ASSERT(chunksize
== od
[1].od_gen
);
3826 * Prefetch a random chunk of the big object.
3827 * Our aim here is to get some async reads in flight
3828 * for blocks that we may free below; the DMU should
3829 * handle this race correctly.
3831 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
3832 s
= 1 + ztest_random(2 * width
- 1);
3833 dmu_prefetch(os
, bigobj
, 0, n
* chunksize
, s
* chunksize
,
3834 ZIO_PRIORITY_SYNC_READ
);
3837 * Pick a random index and compute the offsets into packobj and bigobj.
3839 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
3840 s
= 1 + ztest_random(width
- 1);
3842 packoff
= n
* sizeof (bufwad_t
);
3843 packsize
= s
* sizeof (bufwad_t
);
3845 bigoff
= n
* chunksize
;
3846 bigsize
= s
* chunksize
;
3848 packbuf
= umem_alloc(packsize
, UMEM_NOFAIL
);
3849 bigbuf
= umem_alloc(bigsize
, UMEM_NOFAIL
);
3852 * free_percent of the time, free a range of bigobj rather than
3855 freeit
= (ztest_random(100) < free_percent
);
3858 * Read the current contents of our objects.
3860 error
= dmu_read(os
, packobj
, packoff
, packsize
, packbuf
,
3863 error
= dmu_read(os
, bigobj
, bigoff
, bigsize
, bigbuf
,
3868 * Get a tx for the mods to both packobj and bigobj.
3870 tx
= dmu_tx_create(os
);
3872 dmu_tx_hold_write(tx
, packobj
, packoff
, packsize
);
3875 dmu_tx_hold_free(tx
, bigobj
, bigoff
, bigsize
);
3877 dmu_tx_hold_write(tx
, bigobj
, bigoff
, bigsize
);
3879 /* This accounts for setting the checksum/compression. */
3880 dmu_tx_hold_bonus(tx
, bigobj
);
3882 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
3884 umem_free(packbuf
, packsize
);
3885 umem_free(bigbuf
, bigsize
);
3886 umem_free(od
, size
);
3890 enum zio_checksum cksum
;
3892 cksum
= (enum zio_checksum
)
3893 ztest_random_dsl_prop(ZFS_PROP_CHECKSUM
);
3894 } while (cksum
>= ZIO_CHECKSUM_LEGACY_FUNCTIONS
);
3895 dmu_object_set_checksum(os
, bigobj
, cksum
, tx
);
3897 enum zio_compress comp
;
3899 comp
= (enum zio_compress
)
3900 ztest_random_dsl_prop(ZFS_PROP_COMPRESSION
);
3901 } while (comp
>= ZIO_COMPRESS_LEGACY_FUNCTIONS
);
3902 dmu_object_set_compress(os
, bigobj
, comp
, tx
);
3905 * For each index from n to n + s, verify that the existing bufwad
3906 * in packobj matches the bufwads at the head and tail of the
3907 * corresponding chunk in bigobj. Then update all three bufwads
3908 * with the new values we want to write out.
3910 for (i
= 0; i
< s
; i
++) {
3912 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
3914 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* chunksize
);
3916 bigT
= (bufwad_t
*)((char *)bigH
+ chunksize
) - 1;
3918 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
3919 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
3921 if (pack
->bw_txg
> txg
)
3922 fatal(0, "future leak: got %llx, open txg is %llx",
3925 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
3926 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
3927 pack
->bw_index
, n
, i
);
3929 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
3930 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
3932 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
3933 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
3936 bzero(pack
, sizeof (bufwad_t
));
3938 pack
->bw_index
= n
+ i
;
3940 pack
->bw_data
= 1 + ztest_random(-2ULL);
3947 * We've verified all the old bufwads, and made new ones.
3948 * Now write them out.
3950 dmu_write(os
, packobj
, packoff
, packsize
, packbuf
, tx
);
3953 if (ztest_opts
.zo_verbose
>= 7) {
3954 (void) printf("freeing offset %llx size %llx"
3956 (u_longlong_t
)bigoff
,
3957 (u_longlong_t
)bigsize
,
3960 VERIFY(0 == dmu_free_range(os
, bigobj
, bigoff
, bigsize
, tx
));
3962 if (ztest_opts
.zo_verbose
>= 7) {
3963 (void) printf("writing offset %llx size %llx"
3965 (u_longlong_t
)bigoff
,
3966 (u_longlong_t
)bigsize
,
3969 dmu_write(os
, bigobj
, bigoff
, bigsize
, bigbuf
, tx
);
3975 * Sanity check the stuff we just wrote.
3978 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
3979 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
3981 VERIFY(0 == dmu_read(os
, packobj
, packoff
,
3982 packsize
, packcheck
, DMU_READ_PREFETCH
));
3983 VERIFY(0 == dmu_read(os
, bigobj
, bigoff
,
3984 bigsize
, bigcheck
, DMU_READ_PREFETCH
));
3986 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
3987 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
3989 umem_free(packcheck
, packsize
);
3990 umem_free(bigcheck
, bigsize
);
3993 umem_free(packbuf
, packsize
);
3994 umem_free(bigbuf
, bigsize
);
3995 umem_free(od
, size
);
3999 compare_and_update_pbbufs(uint64_t s
, bufwad_t
*packbuf
, bufwad_t
*bigbuf
,
4000 uint64_t bigsize
, uint64_t n
, uint64_t chunksize
, uint64_t txg
)
4008 * For each index from n to n + s, verify that the existing bufwad
4009 * in packobj matches the bufwads at the head and tail of the
4010 * corresponding chunk in bigobj. Then update all three bufwads
4011 * with the new values we want to write out.
4013 for (i
= 0; i
< s
; i
++) {
4015 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
4017 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* chunksize
);
4019 bigT
= (bufwad_t
*)((char *)bigH
+ chunksize
) - 1;
4021 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
4022 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
4024 if (pack
->bw_txg
> txg
)
4025 fatal(0, "future leak: got %llx, open txg is %llx",
4028 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
4029 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
4030 pack
->bw_index
, n
, i
);
4032 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
4033 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
4035 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
4036 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
4038 pack
->bw_index
= n
+ i
;
4040 pack
->bw_data
= 1 + ztest_random(-2ULL);
4047 #undef OD_ARRAY_SIZE
4048 #define OD_ARRAY_SIZE 2
4051 ztest_dmu_read_write_zcopy(ztest_ds_t
*zd
, uint64_t id
)
4053 objset_t
*os
= zd
->zd_os
;
4060 bufwad_t
*packbuf
, *bigbuf
;
4061 uint64_t packobj
, packoff
, packsize
, bigobj
, bigoff
, bigsize
;
4062 uint64_t blocksize
= ztest_random_blocksize();
4063 uint64_t chunksize
= blocksize
;
4064 uint64_t regions
= 997;
4065 uint64_t stride
= 123456789ULL;
4067 dmu_buf_t
*bonus_db
;
4068 arc_buf_t
**bigbuf_arcbufs
;
4069 dmu_object_info_t doi
;
4071 size
= sizeof (ztest_od_t
) * OD_ARRAY_SIZE
;
4072 od
= umem_alloc(size
, UMEM_NOFAIL
);
4075 * This test uses two objects, packobj and bigobj, that are always
4076 * updated together (i.e. in the same tx) so that their contents are
4077 * in sync and can be compared. Their contents relate to each other
4078 * in a simple way: packobj is a dense array of 'bufwad' structures,
4079 * while bigobj is a sparse array of the same bufwads. Specifically,
4080 * for any index n, there are three bufwads that should be identical:
4082 * packobj, at offset n * sizeof (bufwad_t)
4083 * bigobj, at the head of the nth chunk
4084 * bigobj, at the tail of the nth chunk
4086 * The chunk size is set equal to bigobj block size so that
4087 * dmu_assign_arcbuf() can be tested for object updates.
4091 * Read the directory info. If it's the first time, set things up.
4093 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0);
4094 ztest_od_init(od
+ 1, id
, FTAG
, 1, DMU_OT_UINT64_OTHER
, 0, chunksize
);
4097 if (ztest_object_init(zd
, od
, size
, B_FALSE
) != 0) {
4098 umem_free(od
, size
);
4102 bigobj
= od
[0].od_object
;
4103 packobj
= od
[1].od_object
;
4104 blocksize
= od
[0].od_blocksize
;
4105 chunksize
= blocksize
;
4106 ASSERT(chunksize
== od
[1].od_gen
);
4108 VERIFY(dmu_object_info(os
, bigobj
, &doi
) == 0);
4109 VERIFY(ISP2(doi
.doi_data_block_size
));
4110 VERIFY(chunksize
== doi
.doi_data_block_size
);
4111 VERIFY(chunksize
>= 2 * sizeof (bufwad_t
));
4114 * Pick a random index and compute the offsets into packobj and bigobj.
4116 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
4117 s
= 1 + ztest_random(width
- 1);
4119 packoff
= n
* sizeof (bufwad_t
);
4120 packsize
= s
* sizeof (bufwad_t
);
4122 bigoff
= n
* chunksize
;
4123 bigsize
= s
* chunksize
;
4125 packbuf
= umem_zalloc(packsize
, UMEM_NOFAIL
);
4126 bigbuf
= umem_zalloc(bigsize
, UMEM_NOFAIL
);
4128 VERIFY3U(0, ==, dmu_bonus_hold(os
, bigobj
, FTAG
, &bonus_db
));
4130 bigbuf_arcbufs
= umem_zalloc(2 * s
* sizeof (arc_buf_t
*), UMEM_NOFAIL
);
4133 * Iteration 0 test zcopy for DB_UNCACHED dbufs.
4134 * Iteration 1 test zcopy to already referenced dbufs.
4135 * Iteration 2 test zcopy to dirty dbuf in the same txg.
4136 * Iteration 3 test zcopy to dbuf dirty in previous txg.
4137 * Iteration 4 test zcopy when dbuf is no longer dirty.
4138 * Iteration 5 test zcopy when it can't be done.
4139 * Iteration 6 one more zcopy write.
4141 for (i
= 0; i
< 7; i
++) {
4146 * In iteration 5 (i == 5) use arcbufs
4147 * that don't match bigobj blksz to test
4148 * dmu_assign_arcbuf() when it can't directly
4149 * assign an arcbuf to a dbuf.
4151 for (j
= 0; j
< s
; j
++) {
4152 if (i
!= 5 || chunksize
< (SPA_MINBLOCKSIZE
* 2)) {
4154 dmu_request_arcbuf(bonus_db
, chunksize
);
4156 bigbuf_arcbufs
[2 * j
] =
4157 dmu_request_arcbuf(bonus_db
, chunksize
/ 2);
4158 bigbuf_arcbufs
[2 * j
+ 1] =
4159 dmu_request_arcbuf(bonus_db
, chunksize
/ 2);
4164 * Get a tx for the mods to both packobj and bigobj.
4166 tx
= dmu_tx_create(os
);
4168 dmu_tx_hold_write(tx
, packobj
, packoff
, packsize
);
4169 dmu_tx_hold_write(tx
, bigobj
, bigoff
, bigsize
);
4171 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4173 umem_free(packbuf
, packsize
);
4174 umem_free(bigbuf
, bigsize
);
4175 for (j
= 0; j
< s
; j
++) {
4177 chunksize
< (SPA_MINBLOCKSIZE
* 2)) {
4178 dmu_return_arcbuf(bigbuf_arcbufs
[j
]);
4181 bigbuf_arcbufs
[2 * j
]);
4183 bigbuf_arcbufs
[2 * j
+ 1]);
4186 umem_free(bigbuf_arcbufs
, 2 * s
* sizeof (arc_buf_t
*));
4187 umem_free(od
, size
);
4188 dmu_buf_rele(bonus_db
, FTAG
);
4193 * 50% of the time don't read objects in the 1st iteration to
4194 * test dmu_assign_arcbuf() for the case when there're no
4195 * existing dbufs for the specified offsets.
4197 if (i
!= 0 || ztest_random(2) != 0) {
4198 error
= dmu_read(os
, packobj
, packoff
,
4199 packsize
, packbuf
, DMU_READ_PREFETCH
);
4201 error
= dmu_read(os
, bigobj
, bigoff
, bigsize
,
4202 bigbuf
, DMU_READ_PREFETCH
);
4205 compare_and_update_pbbufs(s
, packbuf
, bigbuf
, bigsize
,
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
);
4213 if (ztest_opts
.zo_verbose
>= 7) {
4214 (void) printf("writing offset %llx size %llx"
4216 (u_longlong_t
)bigoff
,
4217 (u_longlong_t
)bigsize
,
4220 for (off
= bigoff
, j
= 0; j
< s
; j
++, off
+= chunksize
) {
4222 if (i
!= 5 || chunksize
< (SPA_MINBLOCKSIZE
* 2)) {
4223 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
),
4224 bigbuf_arcbufs
[j
]->b_data
, chunksize
);
4226 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
),
4227 bigbuf_arcbufs
[2 * j
]->b_data
,
4229 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
) +
4231 bigbuf_arcbufs
[2 * j
+ 1]->b_data
,
4236 VERIFY(dmu_buf_hold(os
, bigobj
, off
,
4237 FTAG
, &dbt
, DMU_READ_NO_PREFETCH
) == 0);
4239 if (i
!= 5 || chunksize
< (SPA_MINBLOCKSIZE
* 2)) {
4240 dmu_assign_arcbuf(bonus_db
, off
,
4241 bigbuf_arcbufs
[j
], tx
);
4243 dmu_assign_arcbuf(bonus_db
, off
,
4244 bigbuf_arcbufs
[2 * j
], tx
);
4245 dmu_assign_arcbuf(bonus_db
,
4246 off
+ chunksize
/ 2,
4247 bigbuf_arcbufs
[2 * j
+ 1], tx
);
4250 dmu_buf_rele(dbt
, FTAG
);
4256 * Sanity check the stuff we just wrote.
4259 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
4260 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
4262 VERIFY(0 == dmu_read(os
, packobj
, packoff
,
4263 packsize
, packcheck
, DMU_READ_PREFETCH
));
4264 VERIFY(0 == dmu_read(os
, bigobj
, bigoff
,
4265 bigsize
, bigcheck
, DMU_READ_PREFETCH
));
4267 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
4268 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
4270 umem_free(packcheck
, packsize
);
4271 umem_free(bigcheck
, bigsize
);
4274 txg_wait_open(dmu_objset_pool(os
), 0);
4275 } else if (i
== 3) {
4276 txg_wait_synced(dmu_objset_pool(os
), 0);
4280 dmu_buf_rele(bonus_db
, FTAG
);
4281 umem_free(packbuf
, packsize
);
4282 umem_free(bigbuf
, bigsize
);
4283 umem_free(bigbuf_arcbufs
, 2 * s
* sizeof (arc_buf_t
*));
4284 umem_free(od
, size
);
4289 ztest_dmu_write_parallel(ztest_ds_t
*zd
, uint64_t id
)
4293 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4294 uint64_t offset
= (1ULL << (ztest_random(20) + 43)) +
4295 (ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
4298 * Have multiple threads write to large offsets in an object
4299 * to verify that parallel writes to an object -- even to the
4300 * same blocks within the object -- doesn't cause any trouble.
4302 ztest_od_init(od
, ID_PARALLEL
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0);
4304 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0)
4307 while (ztest_random(10) != 0)
4308 ztest_io(zd
, od
->od_object
, offset
);
4310 umem_free(od
, sizeof (ztest_od_t
));
4314 ztest_dmu_prealloc(ztest_ds_t
*zd
, uint64_t id
)
4317 uint64_t offset
= (1ULL << (ztest_random(4) + SPA_MAXBLOCKSHIFT
)) +
4318 (ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
4319 uint64_t count
= ztest_random(20) + 1;
4320 uint64_t blocksize
= ztest_random_blocksize();
4323 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4325 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0);
4327 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
),
4328 !ztest_random(2)) != 0) {
4329 umem_free(od
, sizeof (ztest_od_t
));
4333 if (ztest_truncate(zd
, od
->od_object
, offset
, count
* blocksize
) != 0) {
4334 umem_free(od
, sizeof (ztest_od_t
));
4338 ztest_prealloc(zd
, od
->od_object
, offset
, count
* blocksize
);
4340 data
= umem_zalloc(blocksize
, UMEM_NOFAIL
);
4342 while (ztest_random(count
) != 0) {
4343 uint64_t randoff
= offset
+ (ztest_random(count
) * blocksize
);
4344 if (ztest_write(zd
, od
->od_object
, randoff
, blocksize
,
4347 while (ztest_random(4) != 0)
4348 ztest_io(zd
, od
->od_object
, randoff
);
4351 umem_free(data
, blocksize
);
4352 umem_free(od
, sizeof (ztest_od_t
));
4356 * Verify that zap_{create,destroy,add,remove,update} work as expected.
4358 #define ZTEST_ZAP_MIN_INTS 1
4359 #define ZTEST_ZAP_MAX_INTS 4
4360 #define ZTEST_ZAP_MAX_PROPS 1000
4363 ztest_zap(ztest_ds_t
*zd
, uint64_t id
)
4365 objset_t
*os
= zd
->zd_os
;
4368 uint64_t txg
, last_txg
;
4369 uint64_t value
[ZTEST_ZAP_MAX_INTS
];
4370 uint64_t zl_ints
, zl_intsize
, prop
;
4373 char propname
[100], txgname
[100];
4375 char *hc
[2] = { "s.acl.h", ".s.open.h.hyLZlg" };
4377 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4378 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_ZAP_OTHER
, 0, 0);
4380 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
),
4381 !ztest_random(2)) != 0)
4384 object
= od
->od_object
;
4387 * Generate a known hash collision, and verify that
4388 * we can lookup and remove both entries.
4390 tx
= dmu_tx_create(os
);
4391 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4392 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4395 for (i
= 0; i
< 2; i
++) {
4397 VERIFY3U(0, ==, zap_add(os
, object
, hc
[i
], sizeof (uint64_t),
4400 for (i
= 0; i
< 2; i
++) {
4401 VERIFY3U(EEXIST
, ==, zap_add(os
, object
, hc
[i
],
4402 sizeof (uint64_t), 1, &value
[i
], tx
));
4404 zap_length(os
, object
, hc
[i
], &zl_intsize
, &zl_ints
));
4405 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4406 ASSERT3U(zl_ints
, ==, 1);
4408 for (i
= 0; i
< 2; i
++) {
4409 VERIFY3U(0, ==, zap_remove(os
, object
, hc
[i
], tx
));
4414 * Generate a buch of random entries.
4416 ints
= MAX(ZTEST_ZAP_MIN_INTS
, object
% ZTEST_ZAP_MAX_INTS
);
4418 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
4419 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
4420 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
4421 bzero(value
, sizeof (value
));
4425 * If these zap entries already exist, validate their contents.
4427 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
4429 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4430 ASSERT3U(zl_ints
, ==, 1);
4432 VERIFY(zap_lookup(os
, object
, txgname
, zl_intsize
,
4433 zl_ints
, &last_txg
) == 0);
4435 VERIFY(zap_length(os
, object
, propname
, &zl_intsize
,
4438 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4439 ASSERT3U(zl_ints
, ==, ints
);
4441 VERIFY(zap_lookup(os
, object
, propname
, zl_intsize
,
4442 zl_ints
, value
) == 0);
4444 for (i
= 0; i
< ints
; i
++) {
4445 ASSERT3U(value
[i
], ==, last_txg
+ object
+ i
);
4448 ASSERT3U(error
, ==, ENOENT
);
4452 * Atomically update two entries in our zap object.
4453 * The first is named txg_%llu, and contains the txg
4454 * in which the property was last updated. The second
4455 * is named prop_%llu, and the nth element of its value
4456 * should be txg + object + n.
4458 tx
= dmu_tx_create(os
);
4459 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4460 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4465 fatal(0, "zap future leak: old %llu new %llu", last_txg
, txg
);
4467 for (i
= 0; i
< ints
; i
++)
4468 value
[i
] = txg
+ object
+ i
;
4470 VERIFY3U(0, ==, zap_update(os
, object
, txgname
, sizeof (uint64_t),
4472 VERIFY3U(0, ==, zap_update(os
, object
, propname
, sizeof (uint64_t),
4478 * Remove a random pair of entries.
4480 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
4481 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
4482 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
4484 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
4486 if (error
== ENOENT
)
4491 tx
= dmu_tx_create(os
);
4492 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4493 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4496 VERIFY3U(0, ==, zap_remove(os
, object
, txgname
, tx
));
4497 VERIFY3U(0, ==, zap_remove(os
, object
, propname
, tx
));
4500 umem_free(od
, sizeof (ztest_od_t
));
4504 * Testcase to test the upgrading of a microzap to fatzap.
4507 ztest_fzap(ztest_ds_t
*zd
, uint64_t id
)
4509 objset_t
*os
= zd
->zd_os
;
4511 uint64_t object
, txg
;
4514 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4515 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_ZAP_OTHER
, 0, 0);
4517 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
),
4518 !ztest_random(2)) != 0)
4520 object
= od
->od_object
;
4523 * Add entries to this ZAP and make sure it spills over
4524 * and gets upgraded to a fatzap. Also, since we are adding
4525 * 2050 entries we should see ptrtbl growth and leaf-block split.
4527 for (i
= 0; i
< 2050; i
++) {
4528 char name
[MAXNAMELEN
];
4533 (void) snprintf(name
, sizeof (name
), "fzap-%llu-%llu",
4534 (u_longlong_t
)id
, (u_longlong_t
)value
);
4536 tx
= dmu_tx_create(os
);
4537 dmu_tx_hold_zap(tx
, object
, B_TRUE
, name
);
4538 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4541 error
= zap_add(os
, object
, name
, sizeof (uint64_t), 1,
4543 ASSERT(error
== 0 || error
== EEXIST
);
4547 umem_free(od
, sizeof (ztest_od_t
));
4552 ztest_zap_parallel(ztest_ds_t
*zd
, uint64_t id
)
4554 objset_t
*os
= zd
->zd_os
;
4556 uint64_t txg
, object
, count
, wsize
, wc
, zl_wsize
, zl_wc
;
4558 int i
, namelen
, error
;
4559 int micro
= ztest_random(2);
4560 char name
[20], string_value
[20];
4563 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4564 ztest_od_init(od
, ID_PARALLEL
, FTAG
, micro
, DMU_OT_ZAP_OTHER
, 0, 0);
4566 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
4567 umem_free(od
, sizeof (ztest_od_t
));
4571 object
= od
->od_object
;
4574 * Generate a random name of the form 'xxx.....' where each
4575 * x is a random printable character and the dots are dots.
4576 * There are 94 such characters, and the name length goes from
4577 * 6 to 20, so there are 94^3 * 15 = 12,458,760 possible names.
4579 namelen
= ztest_random(sizeof (name
) - 5) + 5 + 1;
4581 for (i
= 0; i
< 3; i
++)
4582 name
[i
] = '!' + ztest_random('~' - '!' + 1);
4583 for (; i
< namelen
- 1; i
++)
4587 if ((namelen
& 1) || micro
) {
4588 wsize
= sizeof (txg
);
4594 data
= string_value
;
4598 VERIFY0(zap_count(os
, object
, &count
));
4599 ASSERT(count
!= -1ULL);
4602 * Select an operation: length, lookup, add, update, remove.
4604 i
= ztest_random(5);
4607 tx
= dmu_tx_create(os
);
4608 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4609 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4612 bcopy(name
, string_value
, namelen
);
4616 bzero(string_value
, namelen
);
4622 error
= zap_length(os
, object
, name
, &zl_wsize
, &zl_wc
);
4624 ASSERT3U(wsize
, ==, zl_wsize
);
4625 ASSERT3U(wc
, ==, zl_wc
);
4627 ASSERT3U(error
, ==, ENOENT
);
4632 error
= zap_lookup(os
, object
, name
, wsize
, wc
, data
);
4634 if (data
== string_value
&&
4635 bcmp(name
, data
, namelen
) != 0)
4636 fatal(0, "name '%s' != val '%s' len %d",
4637 name
, data
, namelen
);
4639 ASSERT3U(error
, ==, ENOENT
);
4644 error
= zap_add(os
, object
, name
, wsize
, wc
, data
, tx
);
4645 ASSERT(error
== 0 || error
== EEXIST
);
4649 VERIFY(zap_update(os
, object
, name
, wsize
, wc
, data
, tx
) == 0);
4653 error
= zap_remove(os
, object
, name
, tx
);
4654 ASSERT(error
== 0 || error
== ENOENT
);
4661 umem_free(od
, sizeof (ztest_od_t
));
4665 * Commit callback data.
4667 typedef struct ztest_cb_data
{
4668 list_node_t zcd_node
;
4670 int zcd_expected_err
;
4671 boolean_t zcd_added
;
4672 boolean_t zcd_called
;
4676 /* This is the actual commit callback function */
4678 ztest_commit_callback(void *arg
, int error
)
4680 ztest_cb_data_t
*data
= arg
;
4681 uint64_t synced_txg
;
4683 VERIFY(data
!= NULL
);
4684 VERIFY3S(data
->zcd_expected_err
, ==, error
);
4685 VERIFY(!data
->zcd_called
);
4687 synced_txg
= spa_last_synced_txg(data
->zcd_spa
);
4688 if (data
->zcd_txg
> synced_txg
)
4689 fatal(0, "commit callback of txg %" PRIu64
" called prematurely"
4690 ", last synced txg = %" PRIu64
"\n", data
->zcd_txg
,
4693 data
->zcd_called
= B_TRUE
;
4695 if (error
== ECANCELED
) {
4696 ASSERT0(data
->zcd_txg
);
4697 ASSERT(!data
->zcd_added
);
4700 * The private callback data should be destroyed here, but
4701 * since we are going to check the zcd_called field after
4702 * dmu_tx_abort(), we will destroy it there.
4707 ASSERT(data
->zcd_added
);
4708 ASSERT3U(data
->zcd_txg
, !=, 0);
4710 (void) mutex_enter(&zcl
.zcl_callbacks_lock
);
4712 /* See if this cb was called more quickly */
4713 if ((synced_txg
- data
->zcd_txg
) < zc_min_txg_delay
)
4714 zc_min_txg_delay
= synced_txg
- data
->zcd_txg
;
4716 /* Remove our callback from the list */
4717 list_remove(&zcl
.zcl_callbacks
, data
);
4719 (void) mutex_exit(&zcl
.zcl_callbacks_lock
);
4721 umem_free(data
, sizeof (ztest_cb_data_t
));
4724 /* Allocate and initialize callback data structure */
4725 static ztest_cb_data_t
*
4726 ztest_create_cb_data(objset_t
*os
, uint64_t txg
)
4728 ztest_cb_data_t
*cb_data
;
4730 cb_data
= umem_zalloc(sizeof (ztest_cb_data_t
), UMEM_NOFAIL
);
4732 cb_data
->zcd_txg
= txg
;
4733 cb_data
->zcd_spa
= dmu_objset_spa(os
);
4734 list_link_init(&cb_data
->zcd_node
);
4740 * Commit callback test.
4743 ztest_dmu_commit_callbacks(ztest_ds_t
*zd
, uint64_t id
)
4745 objset_t
*os
= zd
->zd_os
;
4748 ztest_cb_data_t
*cb_data
[3], *tmp_cb
;
4749 uint64_t old_txg
, txg
;
4752 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4753 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0);
4755 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
4756 umem_free(od
, sizeof (ztest_od_t
));
4760 tx
= dmu_tx_create(os
);
4762 cb_data
[0] = ztest_create_cb_data(os
, 0);
4763 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[0]);
4765 dmu_tx_hold_write(tx
, od
->od_object
, 0, sizeof (uint64_t));
4767 /* Every once in a while, abort the transaction on purpose */
4768 if (ztest_random(100) == 0)
4772 error
= dmu_tx_assign(tx
, TXG_NOWAIT
);
4774 txg
= error
? 0 : dmu_tx_get_txg(tx
);
4776 cb_data
[0]->zcd_txg
= txg
;
4777 cb_data
[1] = ztest_create_cb_data(os
, txg
);
4778 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[1]);
4782 * It's not a strict requirement to call the registered
4783 * callbacks from inside dmu_tx_abort(), but that's what
4784 * it's supposed to happen in the current implementation
4785 * so we will check for that.
4787 for (i
= 0; i
< 2; i
++) {
4788 cb_data
[i
]->zcd_expected_err
= ECANCELED
;
4789 VERIFY(!cb_data
[i
]->zcd_called
);
4794 for (i
= 0; i
< 2; i
++) {
4795 VERIFY(cb_data
[i
]->zcd_called
);
4796 umem_free(cb_data
[i
], sizeof (ztest_cb_data_t
));
4799 umem_free(od
, sizeof (ztest_od_t
));
4803 cb_data
[2] = ztest_create_cb_data(os
, txg
);
4804 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[2]);
4807 * Read existing data to make sure there isn't a future leak.
4809 VERIFY(0 == dmu_read(os
, od
->od_object
, 0, sizeof (uint64_t),
4810 &old_txg
, DMU_READ_PREFETCH
));
4813 fatal(0, "future leak: got %" PRIu64
", open txg is %" PRIu64
,
4816 dmu_write(os
, od
->od_object
, 0, sizeof (uint64_t), &txg
, tx
);
4818 (void) mutex_enter(&zcl
.zcl_callbacks_lock
);
4821 * Since commit callbacks don't have any ordering requirement and since
4822 * it is theoretically possible for a commit callback to be called
4823 * after an arbitrary amount of time has elapsed since its txg has been
4824 * synced, it is difficult to reliably determine whether a commit
4825 * callback hasn't been called due to high load or due to a flawed
4828 * In practice, we will assume that if after a certain number of txgs a
4829 * commit callback hasn't been called, then most likely there's an
4830 * implementation bug..
4832 tmp_cb
= list_head(&zcl
.zcl_callbacks
);
4833 if (tmp_cb
!= NULL
&&
4834 tmp_cb
->zcd_txg
+ ZTEST_COMMIT_CB_THRESH
< txg
) {
4835 fatal(0, "Commit callback threshold exceeded, oldest txg: %"
4836 PRIu64
", open txg: %" PRIu64
"\n", tmp_cb
->zcd_txg
, txg
);
4840 * Let's find the place to insert our callbacks.
4842 * Even though the list is ordered by txg, it is possible for the
4843 * insertion point to not be the end because our txg may already be
4844 * quiescing at this point and other callbacks in the open txg
4845 * (from other objsets) may have sneaked in.
4847 tmp_cb
= list_tail(&zcl
.zcl_callbacks
);
4848 while (tmp_cb
!= NULL
&& tmp_cb
->zcd_txg
> txg
)
4849 tmp_cb
= list_prev(&zcl
.zcl_callbacks
, tmp_cb
);
4851 /* Add the 3 callbacks to the list */
4852 for (i
= 0; i
< 3; i
++) {
4854 list_insert_head(&zcl
.zcl_callbacks
, cb_data
[i
]);
4856 list_insert_after(&zcl
.zcl_callbacks
, tmp_cb
,
4859 cb_data
[i
]->zcd_added
= B_TRUE
;
4860 VERIFY(!cb_data
[i
]->zcd_called
);
4862 tmp_cb
= cb_data
[i
];
4867 (void) mutex_exit(&zcl
.zcl_callbacks_lock
);
4871 umem_free(od
, sizeof (ztest_od_t
));
4876 ztest_dsl_prop_get_set(ztest_ds_t
*zd
, uint64_t id
)
4878 zfs_prop_t proplist
[] = {
4880 ZFS_PROP_COMPRESSION
,
4886 (void) rw_rdlock(&ztest_name_lock
);
4888 for (p
= 0; p
< sizeof (proplist
) / sizeof (proplist
[0]); p
++)
4889 (void) ztest_dsl_prop_set_uint64(zd
->zd_name
, proplist
[p
],
4890 ztest_random_dsl_prop(proplist
[p
]), (int)ztest_random(2));
4892 VERIFY0(ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_RECORDSIZE
,
4893 ztest_random_blocksize(), (int)ztest_random(2)));
4895 (void) rw_unlock(&ztest_name_lock
);
4900 ztest_spa_prop_get_set(ztest_ds_t
*zd
, uint64_t id
)
4902 nvlist_t
*props
= NULL
;
4904 (void) rw_rdlock(&ztest_name_lock
);
4906 (void) ztest_spa_prop_set_uint64(ZPOOL_PROP_DEDUPDITTO
,
4907 ZIO_DEDUPDITTO_MIN
+ ztest_random(ZIO_DEDUPDITTO_MIN
));
4909 VERIFY0(spa_prop_get(ztest_spa
, &props
));
4911 if (ztest_opts
.zo_verbose
>= 6)
4912 dump_nvlist(props
, 4);
4916 (void) rw_unlock(&ztest_name_lock
);
4920 user_release_one(const char *snapname
, const char *holdname
)
4922 nvlist_t
*snaps
, *holds
;
4925 snaps
= fnvlist_alloc();
4926 holds
= fnvlist_alloc();
4927 fnvlist_add_boolean(holds
, holdname
);
4928 fnvlist_add_nvlist(snaps
, snapname
, holds
);
4929 fnvlist_free(holds
);
4930 error
= dsl_dataset_user_release(snaps
, NULL
);
4931 fnvlist_free(snaps
);
4936 * Test snapshot hold/release and deferred destroy.
4939 ztest_dmu_snapshot_hold(ztest_ds_t
*zd
, uint64_t id
)
4942 objset_t
*os
= zd
->zd_os
;
4946 char clonename
[100];
4948 char osname
[MAXNAMELEN
];
4951 (void) rw_rdlock(&ztest_name_lock
);
4953 dmu_objset_name(os
, osname
);
4955 (void) snprintf(snapname
, sizeof (snapname
), "sh1_%llu",
4957 (void) snprintf(fullname
, sizeof (fullname
), "%s@%s", osname
, snapname
);
4958 (void) snprintf(clonename
, sizeof (clonename
),
4959 "%s/ch1_%llu", osname
, (u_longlong_t
)id
);
4960 (void) snprintf(tag
, sizeof (tag
), "tag_%llu", (u_longlong_t
)id
);
4963 * Clean up from any previous run.
4965 error
= dsl_destroy_head(clonename
);
4966 if (error
!= ENOENT
)
4968 error
= user_release_one(fullname
, tag
);
4969 if (error
!= ESRCH
&& error
!= ENOENT
)
4971 error
= dsl_destroy_snapshot(fullname
, B_FALSE
);
4972 if (error
!= ENOENT
)
4976 * Create snapshot, clone it, mark snap for deferred destroy,
4977 * destroy clone, verify snap was also destroyed.
4979 error
= dmu_objset_snapshot_one(osname
, snapname
);
4981 if (error
== ENOSPC
) {
4982 ztest_record_enospc("dmu_objset_snapshot");
4985 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname
, error
);
4988 error
= dmu_objset_clone(clonename
, fullname
);
4990 if (error
== ENOSPC
) {
4991 ztest_record_enospc("dmu_objset_clone");
4994 fatal(0, "dmu_objset_clone(%s) = %d", clonename
, error
);
4997 error
= dsl_destroy_snapshot(fullname
, B_TRUE
);
4999 fatal(0, "dsl_destroy_snapshot(%s, B_TRUE) = %d",
5003 error
= dsl_destroy_head(clonename
);
5005 fatal(0, "dsl_destroy_head(%s) = %d", clonename
, error
);
5007 error
= dmu_objset_hold(fullname
, FTAG
, &origin
);
5008 if (error
!= ENOENT
)
5009 fatal(0, "dmu_objset_hold(%s) = %d", fullname
, error
);
5012 * Create snapshot, add temporary hold, verify that we can't
5013 * destroy a held snapshot, mark for deferred destroy,
5014 * release hold, verify snapshot was destroyed.
5016 error
= dmu_objset_snapshot_one(osname
, snapname
);
5018 if (error
== ENOSPC
) {
5019 ztest_record_enospc("dmu_objset_snapshot");
5022 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname
, error
);
5025 holds
= fnvlist_alloc();
5026 fnvlist_add_string(holds
, fullname
, tag
);
5027 error
= dsl_dataset_user_hold(holds
, 0, NULL
);
5028 fnvlist_free(holds
);
5030 if (error
== ENOSPC
) {
5031 ztest_record_enospc("dsl_dataset_user_hold");
5034 fatal(0, "dsl_dataset_user_hold(%s, %s) = %u",
5035 fullname
, tag
, error
);
5038 error
= dsl_destroy_snapshot(fullname
, B_FALSE
);
5039 if (error
!= EBUSY
) {
5040 fatal(0, "dsl_destroy_snapshot(%s, B_FALSE) = %d",
5044 error
= dsl_destroy_snapshot(fullname
, B_TRUE
);
5046 fatal(0, "dsl_destroy_snapshot(%s, B_TRUE) = %d",
5050 error
= user_release_one(fullname
, tag
);
5052 fatal(0, "user_release_one(%s, %s) = %d", fullname
, tag
, error
);
5054 VERIFY3U(dmu_objset_hold(fullname
, FTAG
, &origin
), ==, ENOENT
);
5057 (void) rw_unlock(&ztest_name_lock
);
5061 * Inject random faults into the on-disk data.
5065 ztest_fault_inject(ztest_ds_t
*zd
, uint64_t id
)
5067 ztest_shared_t
*zs
= ztest_shared
;
5068 spa_t
*spa
= ztest_spa
;
5072 uint64_t bad
= 0x1990c0ffeedecadeull
;
5077 int bshift
= SPA_MAXBLOCKSHIFT
+ 2; /* don't scrog all labels */
5083 boolean_t islog
= B_FALSE
;
5085 path0
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
5086 pathrand
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
5088 mutex_enter(&ztest_vdev_lock
);
5089 maxfaults
= MAXFAULTS();
5090 leaves
= MAX(zs
->zs_mirrors
, 1) * ztest_opts
.zo_raidz
;
5091 mirror_save
= zs
->zs_mirrors
;
5092 mutex_exit(&ztest_vdev_lock
);
5094 ASSERT(leaves
>= 1);
5097 * Grab the name lock as reader. There are some operations
5098 * which don't like to have their vdevs changed while
5099 * they are in progress (i.e. spa_change_guid). Those
5100 * operations will have grabbed the name lock as writer.
5102 (void) rw_rdlock(&ztest_name_lock
);
5105 * We need SCL_STATE here because we're going to look at vd0->vdev_tsd.
5107 spa_config_enter(spa
, SCL_STATE
, FTAG
, RW_READER
);
5109 if (ztest_random(2) == 0) {
5111 * Inject errors on a normal data device or slog device.
5113 top
= ztest_random_vdev_top(spa
, B_TRUE
);
5114 leaf
= ztest_random(leaves
) + zs
->zs_splits
;
5117 * Generate paths to the first leaf in this top-level vdev,
5118 * and to the random leaf we selected. We'll induce transient
5119 * write failures and random online/offline activity on leaf 0,
5120 * and we'll write random garbage to the randomly chosen leaf.
5122 (void) snprintf(path0
, MAXPATHLEN
, ztest_dev_template
,
5123 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
5124 top
* leaves
+ zs
->zs_splits
);
5125 (void) snprintf(pathrand
, MAXPATHLEN
, ztest_dev_template
,
5126 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
5127 top
* leaves
+ leaf
);
5129 vd0
= vdev_lookup_by_path(spa
->spa_root_vdev
, path0
);
5130 if (vd0
!= NULL
&& vd0
->vdev_top
->vdev_islog
)
5134 * If the top-level vdev needs to be resilvered
5135 * then we only allow faults on the device that is
5138 if (vd0
!= NULL
&& maxfaults
!= 1 &&
5139 (!vdev_resilver_needed(vd0
->vdev_top
, NULL
, NULL
) ||
5140 vd0
->vdev_resilver_txg
!= 0)) {
5142 * Make vd0 explicitly claim to be unreadable,
5143 * or unwriteable, or reach behind its back
5144 * and close the underlying fd. We can do this if
5145 * maxfaults == 0 because we'll fail and reexecute,
5146 * and we can do it if maxfaults >= 2 because we'll
5147 * have enough redundancy. If maxfaults == 1, the
5148 * combination of this with injection of random data
5149 * corruption below exceeds the pool's fault tolerance.
5151 vdev_file_t
*vf
= vd0
->vdev_tsd
;
5153 if (vf
!= NULL
&& ztest_random(3) == 0) {
5154 (void) close(vf
->vf_vnode
->v_fd
);
5155 vf
->vf_vnode
->v_fd
= -1;
5156 } else if (ztest_random(2) == 0) {
5157 vd0
->vdev_cant_read
= B_TRUE
;
5159 vd0
->vdev_cant_write
= B_TRUE
;
5161 guid0
= vd0
->vdev_guid
;
5165 * Inject errors on an l2cache device.
5167 spa_aux_vdev_t
*sav
= &spa
->spa_l2cache
;
5169 if (sav
->sav_count
== 0) {
5170 spa_config_exit(spa
, SCL_STATE
, FTAG
);
5171 (void) rw_unlock(&ztest_name_lock
);
5174 vd0
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)];
5175 guid0
= vd0
->vdev_guid
;
5176 (void) strcpy(path0
, vd0
->vdev_path
);
5177 (void) strcpy(pathrand
, vd0
->vdev_path
);
5181 maxfaults
= INT_MAX
; /* no limit on cache devices */
5184 spa_config_exit(spa
, SCL_STATE
, FTAG
);
5185 (void) rw_unlock(&ztest_name_lock
);
5188 * If we can tolerate two or more faults, or we're dealing
5189 * with a slog, randomly online/offline vd0.
5191 if ((maxfaults
>= 2 || islog
) && guid0
!= 0) {
5192 if (ztest_random(10) < 6) {
5193 int flags
= (ztest_random(2) == 0 ?
5194 ZFS_OFFLINE_TEMPORARY
: 0);
5197 * We have to grab the zs_name_lock as writer to
5198 * prevent a race between offlining a slog and
5199 * destroying a dataset. Offlining the slog will
5200 * grab a reference on the dataset which may cause
5201 * dsl_destroy_head() to fail with EBUSY thus
5202 * leaving the dataset in an inconsistent state.
5205 (void) rw_wrlock(&ztest_name_lock
);
5207 VERIFY(vdev_offline(spa
, guid0
, flags
) != EBUSY
);
5210 (void) rw_unlock(&ztest_name_lock
);
5213 * Ideally we would like to be able to randomly
5214 * call vdev_[on|off]line without holding locks
5215 * to force unpredictable failures but the side
5216 * effects of vdev_[on|off]line prevent us from
5217 * doing so. We grab the ztest_vdev_lock here to
5218 * prevent a race between injection testing and
5221 mutex_enter(&ztest_vdev_lock
);
5222 (void) vdev_online(spa
, guid0
, 0, NULL
);
5223 mutex_exit(&ztest_vdev_lock
);
5231 * We have at least single-fault tolerance, so inject data corruption.
5233 fd
= open(pathrand
, O_RDWR
);
5235 if (fd
== -1) /* we hit a gap in the device namespace */
5238 fsize
= lseek(fd
, 0, SEEK_END
);
5240 while (--iters
!= 0) {
5242 * The offset must be chosen carefully to ensure that
5243 * we do not inject a given logical block with errors
5244 * on two different leaf devices, because ZFS can not
5245 * tolerate that (if maxfaults==1).
5247 * We divide each leaf into chunks of size
5248 * (# leaves * SPA_MAXBLOCKSIZE * 4). Within each chunk
5249 * there is a series of ranges to which we can inject errors.
5250 * Each range can accept errors on only a single leaf vdev.
5251 * The error injection ranges are separated by ranges
5252 * which we will not inject errors on any device (DMZs).
5253 * Each DMZ must be large enough such that a single block
5254 * can not straddle it, so that a single block can not be
5255 * a target in two different injection ranges (on different
5258 * For example, with 3 leaves, each chunk looks like:
5259 * 0 to 32M: injection range for leaf 0
5260 * 32M to 64M: DMZ - no injection allowed
5261 * 64M to 96M: injection range for leaf 1
5262 * 96M to 128M: DMZ - no injection allowed
5263 * 128M to 160M: injection range for leaf 2
5264 * 160M to 192M: DMZ - no injection allowed
5266 offset
= ztest_random(fsize
/ (leaves
<< bshift
)) *
5267 (leaves
<< bshift
) + (leaf
<< bshift
) +
5268 (ztest_random(1ULL << (bshift
- 1)) & -8ULL);
5270 if (offset
>= fsize
)
5273 mutex_enter(&ztest_vdev_lock
);
5274 if (mirror_save
!= zs
->zs_mirrors
) {
5275 mutex_exit(&ztest_vdev_lock
);
5280 if (pwrite(fd
, &bad
, sizeof (bad
), offset
) != sizeof (bad
))
5281 fatal(1, "can't inject bad word at 0x%llx in %s",
5284 mutex_exit(&ztest_vdev_lock
);
5286 if (ztest_opts
.zo_verbose
>= 7)
5287 (void) printf("injected bad word into %s,"
5288 " offset 0x%llx\n", pathrand
, (u_longlong_t
)offset
);
5293 umem_free(path0
, MAXPATHLEN
);
5294 umem_free(pathrand
, MAXPATHLEN
);
5298 * Verify that DDT repair works as expected.
5301 ztest_ddt_repair(ztest_ds_t
*zd
, uint64_t id
)
5303 ztest_shared_t
*zs
= ztest_shared
;
5304 spa_t
*spa
= ztest_spa
;
5305 objset_t
*os
= zd
->zd_os
;
5307 uint64_t object
, blocksize
, txg
, pattern
, psize
;
5308 enum zio_checksum checksum
= spa_dedup_checksum(spa
);
5313 int copies
= 2 * ZIO_DEDUPDITTO_MIN
;
5316 blocksize
= ztest_random_blocksize();
5317 blocksize
= MIN(blocksize
, 2048); /* because we write so many */
5319 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
5320 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0);
5322 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
5323 umem_free(od
, sizeof (ztest_od_t
));
5328 * Take the name lock as writer to prevent anyone else from changing
5329 * the pool and dataset properies we need to maintain during this test.
5331 (void) rw_wrlock(&ztest_name_lock
);
5333 if (ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_DEDUP
, checksum
,
5335 ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_COPIES
, 1,
5337 (void) rw_unlock(&ztest_name_lock
);
5338 umem_free(od
, sizeof (ztest_od_t
));
5342 object
= od
[0].od_object
;
5343 blocksize
= od
[0].od_blocksize
;
5344 pattern
= zs
->zs_guid
^ dmu_objset_fsid_guid(os
);
5346 ASSERT(object
!= 0);
5348 tx
= dmu_tx_create(os
);
5349 dmu_tx_hold_write(tx
, object
, 0, copies
* blocksize
);
5350 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
5352 (void) rw_unlock(&ztest_name_lock
);
5353 umem_free(od
, sizeof (ztest_od_t
));
5358 * Write all the copies of our block.
5360 for (i
= 0; i
< copies
; i
++) {
5361 uint64_t offset
= i
* blocksize
;
5362 int error
= dmu_buf_hold(os
, object
, offset
, FTAG
, &db
,
5363 DMU_READ_NO_PREFETCH
);
5365 fatal(B_FALSE
, "dmu_buf_hold(%p, %llu, %llu) = %u",
5366 os
, (long long)object
, (long long) offset
, error
);
5368 ASSERT(db
->db_offset
== offset
);
5369 ASSERT(db
->db_size
== blocksize
);
5370 ASSERT(ztest_pattern_match(db
->db_data
, db
->db_size
, pattern
) ||
5371 ztest_pattern_match(db
->db_data
, db
->db_size
, 0ULL));
5372 dmu_buf_will_fill(db
, tx
);
5373 ztest_pattern_set(db
->db_data
, db
->db_size
, pattern
);
5374 dmu_buf_rele(db
, FTAG
);
5378 txg_wait_synced(spa_get_dsl(spa
), txg
);
5381 * Find out what block we got.
5383 VERIFY0(dmu_buf_hold(os
, object
, 0, FTAG
, &db
,
5384 DMU_READ_NO_PREFETCH
));
5385 blk
= *((dmu_buf_impl_t
*)db
)->db_blkptr
;
5386 dmu_buf_rele(db
, FTAG
);
5389 * Damage the block. Dedup-ditto will save us when we read it later.
5391 psize
= BP_GET_PSIZE(&blk
);
5392 buf
= zio_buf_alloc(psize
);
5393 ztest_pattern_set(buf
, psize
, ~pattern
);
5395 (void) zio_wait(zio_rewrite(NULL
, spa
, 0, &blk
,
5396 buf
, psize
, NULL
, NULL
, ZIO_PRIORITY_SYNC_WRITE
,
5397 ZIO_FLAG_CANFAIL
| ZIO_FLAG_INDUCE_DAMAGE
, NULL
));
5399 zio_buf_free(buf
, psize
);
5401 (void) rw_unlock(&ztest_name_lock
);
5402 umem_free(od
, sizeof (ztest_od_t
));
5410 ztest_scrub(ztest_ds_t
*zd
, uint64_t id
)
5412 spa_t
*spa
= ztest_spa
;
5414 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5415 (void) poll(NULL
, 0, 100); /* wait a moment, then force a restart */
5416 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5420 * Change the guid for the pool.
5424 ztest_reguid(ztest_ds_t
*zd
, uint64_t id
)
5426 spa_t
*spa
= ztest_spa
;
5427 uint64_t orig
, load
;
5430 orig
= spa_guid(spa
);
5431 load
= spa_load_guid(spa
);
5433 (void) rw_wrlock(&ztest_name_lock
);
5434 error
= spa_change_guid(spa
);
5435 (void) rw_unlock(&ztest_name_lock
);
5440 if (ztest_opts
.zo_verbose
>= 4) {
5441 (void) printf("Changed guid old %llu -> %llu\n",
5442 (u_longlong_t
)orig
, (u_longlong_t
)spa_guid(spa
));
5445 VERIFY3U(orig
, !=, spa_guid(spa
));
5446 VERIFY3U(load
, ==, spa_load_guid(spa
));
5450 * Rename the pool to a different name and then rename it back.
5454 ztest_spa_rename(ztest_ds_t
*zd
, uint64_t id
)
5456 char *oldname
, *newname
;
5459 (void) rw_wrlock(&ztest_name_lock
);
5461 oldname
= ztest_opts
.zo_pool
;
5462 newname
= umem_alloc(strlen(oldname
) + 5, UMEM_NOFAIL
);
5463 (void) strcpy(newname
, oldname
);
5464 (void) strcat(newname
, "_tmp");
5469 VERIFY3U(0, ==, spa_rename(oldname
, newname
));
5472 * Try to open it under the old name, which shouldn't exist
5474 VERIFY3U(ENOENT
, ==, spa_open(oldname
, &spa
, FTAG
));
5477 * Open it under the new name and make sure it's still the same spa_t.
5479 VERIFY3U(0, ==, spa_open(newname
, &spa
, FTAG
));
5481 ASSERT(spa
== ztest_spa
);
5482 spa_close(spa
, FTAG
);
5485 * Rename it back to the original
5487 VERIFY3U(0, ==, spa_rename(newname
, oldname
));
5490 * Make sure it can still be opened
5492 VERIFY3U(0, ==, spa_open(oldname
, &spa
, FTAG
));
5494 ASSERT(spa
== ztest_spa
);
5495 spa_close(spa
, FTAG
);
5497 umem_free(newname
, strlen(newname
) + 1);
5499 (void) rw_unlock(&ztest_name_lock
);
5503 ztest_fletcher(ztest_ds_t
*zd
, uint64_t id
)
5505 hrtime_t end
= gethrtime() + NANOSEC
;
5507 while (gethrtime() <= end
) {
5508 int run_count
= 100;
5514 zio_cksum_t zc_ref_byteswap
;
5516 size
= ztest_random_blocksize();
5517 buf
= umem_alloc(size
, UMEM_NOFAIL
);
5519 for (i
= 0, ptr
= buf
; i
< size
/ sizeof (*ptr
); i
++, ptr
++)
5520 *ptr
= ztest_random(UINT_MAX
);
5522 VERIFY0(fletcher_4_impl_set("scalar"));
5523 fletcher_4_native(buf
, size
, &zc_ref
);
5524 fletcher_4_byteswap(buf
, size
, &zc_ref_byteswap
);
5526 VERIFY0(fletcher_4_impl_set("cycle"));
5527 while (run_count
-- > 0) {
5529 zio_cksum_t zc_byteswap
;
5531 fletcher_4_byteswap(buf
, size
, &zc_byteswap
);
5532 fletcher_4_native(buf
, size
, &zc
);
5534 VERIFY0(bcmp(&zc
, &zc_ref
, sizeof (zc
)));
5535 VERIFY0(bcmp(&zc_byteswap
, &zc_ref_byteswap
,
5536 sizeof (zc_byteswap
)));
5539 umem_free(buf
, size
);
5544 ztest_check_path(char *path
)
5547 /* return true on success */
5548 return (!stat(path
, &s
));
5552 ztest_get_zdb_bin(char *bin
, int len
)
5556 * Try to use ZDB_PATH and in-tree zdb path. If not successful, just
5557 * let popen to search through PATH.
5559 if ((zdb_path
= getenv("ZDB_PATH"))) {
5560 strlcpy(bin
, zdb_path
, len
); /* In env */
5561 if (!ztest_check_path(bin
)) {
5562 ztest_dump_core
= 0;
5563 fatal(1, "invalid ZDB_PATH '%s'", bin
);
5568 VERIFY(realpath(getexecname(), bin
) != NULL
);
5569 if (strstr(bin
, "/ztest/")) {
5570 strstr(bin
, "/ztest/")[0] = '\0'; /* In-tree */
5571 strcat(bin
, "/zdb/zdb");
5572 if (ztest_check_path(bin
))
5579 * Verify pool integrity by running zdb.
5582 ztest_run_zdb(char *pool
)
5588 const int len
= MAXPATHLEN
+ MAXNAMELEN
+ 20;
5591 bin
= umem_alloc(len
, UMEM_NOFAIL
);
5592 zdb
= umem_alloc(len
, UMEM_NOFAIL
);
5593 zbuf
= umem_alloc(1024, UMEM_NOFAIL
);
5595 ztest_get_zdb_bin(bin
, len
);
5598 "%s -bcc%s%s -d -U %s %s",
5600 ztest_opts
.zo_verbose
>= 3 ? "s" : "",
5601 ztest_opts
.zo_verbose
>= 4 ? "v" : "",
5605 if (ztest_opts
.zo_verbose
>= 5)
5606 (void) printf("Executing %s\n", strstr(zdb
, "zdb "));
5608 fp
= popen(zdb
, "r");
5610 while (fgets(zbuf
, 1024, fp
) != NULL
)
5611 if (ztest_opts
.zo_verbose
>= 3)
5612 (void) printf("%s", zbuf
);
5614 status
= pclose(fp
);
5619 ztest_dump_core
= 0;
5620 if (WIFEXITED(status
))
5621 fatal(0, "'%s' exit code %d", zdb
, WEXITSTATUS(status
));
5623 fatal(0, "'%s' died with signal %d", zdb
, WTERMSIG(status
));
5625 umem_free(bin
, len
);
5626 umem_free(zdb
, len
);
5627 umem_free(zbuf
, 1024);
5631 ztest_walk_pool_directory(char *header
)
5635 if (ztest_opts
.zo_verbose
>= 6)
5636 (void) printf("%s\n", header
);
5638 mutex_enter(&spa_namespace_lock
);
5639 while ((spa
= spa_next(spa
)) != NULL
)
5640 if (ztest_opts
.zo_verbose
>= 6)
5641 (void) printf("\t%s\n", spa_name(spa
));
5642 mutex_exit(&spa_namespace_lock
);
5646 ztest_spa_import_export(char *oldname
, char *newname
)
5648 nvlist_t
*config
, *newconfig
;
5653 if (ztest_opts
.zo_verbose
>= 4) {
5654 (void) printf("import/export: old = %s, new = %s\n",
5659 * Clean up from previous runs.
5661 (void) spa_destroy(newname
);
5664 * Get the pool's configuration and guid.
5666 VERIFY3U(0, ==, spa_open(oldname
, &spa
, FTAG
));
5669 * Kick off a scrub to tickle scrub/export races.
5671 if (ztest_random(2) == 0)
5672 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5674 pool_guid
= spa_guid(spa
);
5675 spa_close(spa
, FTAG
);
5677 ztest_walk_pool_directory("pools before export");
5682 VERIFY3U(0, ==, spa_export(oldname
, &config
, B_FALSE
, B_FALSE
));
5684 ztest_walk_pool_directory("pools after export");
5689 newconfig
= spa_tryimport(config
);
5690 ASSERT(newconfig
!= NULL
);
5691 nvlist_free(newconfig
);
5694 * Import it under the new name.
5696 error
= spa_import(newname
, config
, NULL
, 0);
5698 dump_nvlist(config
, 0);
5699 fatal(B_FALSE
, "couldn't import pool %s as %s: error %u",
5700 oldname
, newname
, error
);
5703 ztest_walk_pool_directory("pools after import");
5706 * Try to import it again -- should fail with EEXIST.
5708 VERIFY3U(EEXIST
, ==, spa_import(newname
, config
, NULL
, 0));
5711 * Try to import it under a different name -- should fail with EEXIST.
5713 VERIFY3U(EEXIST
, ==, spa_import(oldname
, config
, NULL
, 0));
5716 * Verify that the pool is no longer visible under the old name.
5718 VERIFY3U(ENOENT
, ==, spa_open(oldname
, &spa
, FTAG
));
5721 * Verify that we can open and close the pool using the new name.
5723 VERIFY3U(0, ==, spa_open(newname
, &spa
, FTAG
));
5724 ASSERT(pool_guid
== spa_guid(spa
));
5725 spa_close(spa
, FTAG
);
5727 nvlist_free(config
);
5731 ztest_resume(spa_t
*spa
)
5733 if (spa_suspended(spa
) && ztest_opts
.zo_verbose
>= 6)
5734 (void) printf("resuming from suspended state\n");
5735 spa_vdev_state_enter(spa
, SCL_NONE
);
5736 vdev_clear(spa
, NULL
);
5737 (void) spa_vdev_state_exit(spa
, NULL
, 0);
5738 (void) zio_resume(spa
);
5742 ztest_resume_thread(void *arg
)
5746 while (!ztest_exiting
) {
5747 if (spa_suspended(spa
))
5749 (void) poll(NULL
, 0, 100);
5761 ztest_deadman_alarm(int sig
)
5763 fatal(0, "failed to complete within %d seconds of deadline", GRACE
);
5768 ztest_execute(int test
, ztest_info_t
*zi
, uint64_t id
)
5770 ztest_ds_t
*zd
= &ztest_ds
[id
% ztest_opts
.zo_datasets
];
5771 ztest_shared_callstate_t
*zc
= ZTEST_GET_SHARED_CALLSTATE(test
);
5772 hrtime_t functime
= gethrtime();
5775 for (i
= 0; i
< zi
->zi_iters
; i
++)
5776 zi
->zi_func(zd
, id
);
5778 functime
= gethrtime() - functime
;
5780 atomic_add_64(&zc
->zc_count
, 1);
5781 atomic_add_64(&zc
->zc_time
, functime
);
5783 if (ztest_opts
.zo_verbose
>= 4)
5784 (void) printf("%6.2f sec in %s\n",
5785 (double)functime
/ NANOSEC
, zi
->zi_funcname
);
5789 ztest_thread(void *arg
)
5792 uint64_t id
= (uintptr_t)arg
;
5793 ztest_shared_t
*zs
= ztest_shared
;
5797 ztest_shared_callstate_t
*zc
;
5799 while ((now
= gethrtime()) < zs
->zs_thread_stop
) {
5801 * See if it's time to force a crash.
5803 if (now
> zs
->zs_thread_kill
)
5807 * If we're getting ENOSPC with some regularity, stop.
5809 if (zs
->zs_enospc_count
> 10)
5813 * Pick a random function to execute.
5815 rand
= ztest_random(ZTEST_FUNCS
);
5816 zi
= &ztest_info
[rand
];
5817 zc
= ZTEST_GET_SHARED_CALLSTATE(rand
);
5818 call_next
= zc
->zc_next
;
5820 if (now
>= call_next
&&
5821 atomic_cas_64(&zc
->zc_next
, call_next
, call_next
+
5822 ztest_random(2 * zi
->zi_interval
[0] + 1)) == call_next
) {
5823 ztest_execute(rand
, zi
, id
);
5833 ztest_dataset_name(char *dsname
, char *pool
, int d
)
5835 (void) snprintf(dsname
, MAXNAMELEN
, "%s/ds_%d", pool
, d
);
5839 ztest_dataset_destroy(int d
)
5841 char name
[MAXNAMELEN
];
5844 ztest_dataset_name(name
, ztest_opts
.zo_pool
, d
);
5846 if (ztest_opts
.zo_verbose
>= 3)
5847 (void) printf("Destroying %s to free up space\n", name
);
5850 * Cleanup any non-standard clones and snapshots. In general,
5851 * ztest thread t operates on dataset (t % zopt_datasets),
5852 * so there may be more than one thing to clean up.
5854 for (t
= d
; t
< ztest_opts
.zo_threads
;
5855 t
+= ztest_opts
.zo_datasets
)
5856 ztest_dsl_dataset_cleanup(name
, t
);
5858 (void) dmu_objset_find(name
, ztest_objset_destroy_cb
, NULL
,
5859 DS_FIND_SNAPSHOTS
| DS_FIND_CHILDREN
);
5863 ztest_dataset_dirobj_verify(ztest_ds_t
*zd
)
5865 uint64_t usedobjs
, dirobjs
, scratch
;
5868 * ZTEST_DIROBJ is the object directory for the entire dataset.
5869 * Therefore, the number of objects in use should equal the
5870 * number of ZTEST_DIROBJ entries, +1 for ZTEST_DIROBJ itself.
5871 * If not, we have an object leak.
5873 * Note that we can only check this in ztest_dataset_open(),
5874 * when the open-context and syncing-context values agree.
5875 * That's because zap_count() returns the open-context value,
5876 * while dmu_objset_space() returns the rootbp fill count.
5878 VERIFY3U(0, ==, zap_count(zd
->zd_os
, ZTEST_DIROBJ
, &dirobjs
));
5879 dmu_objset_space(zd
->zd_os
, &scratch
, &scratch
, &usedobjs
, &scratch
);
5880 ASSERT3U(dirobjs
+ 1, ==, usedobjs
);
5884 ztest_dataset_open(int d
)
5886 ztest_ds_t
*zd
= &ztest_ds
[d
];
5887 uint64_t committed_seq
= ZTEST_GET_SHARED_DS(d
)->zd_seq
;
5890 char name
[MAXNAMELEN
];
5893 ztest_dataset_name(name
, ztest_opts
.zo_pool
, d
);
5895 (void) rw_rdlock(&ztest_name_lock
);
5897 error
= ztest_dataset_create(name
);
5898 if (error
== ENOSPC
) {
5899 (void) rw_unlock(&ztest_name_lock
);
5900 ztest_record_enospc(FTAG
);
5903 ASSERT(error
== 0 || error
== EEXIST
);
5905 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, zd
, &os
));
5906 (void) rw_unlock(&ztest_name_lock
);
5908 ztest_zd_init(zd
, ZTEST_GET_SHARED_DS(d
), os
);
5910 zilog
= zd
->zd_zilog
;
5912 if (zilog
->zl_header
->zh_claim_lr_seq
!= 0 &&
5913 zilog
->zl_header
->zh_claim_lr_seq
< committed_seq
)
5914 fatal(0, "missing log records: claimed %llu < committed %llu",
5915 zilog
->zl_header
->zh_claim_lr_seq
, committed_seq
);
5917 ztest_dataset_dirobj_verify(zd
);
5919 zil_replay(os
, zd
, ztest_replay_vector
);
5921 ztest_dataset_dirobj_verify(zd
);
5923 if (ztest_opts
.zo_verbose
>= 6)
5924 (void) printf("%s replay %llu blocks, %llu records, seq %llu\n",
5926 (u_longlong_t
)zilog
->zl_parse_blk_count
,
5927 (u_longlong_t
)zilog
->zl_parse_lr_count
,
5928 (u_longlong_t
)zilog
->zl_replaying_seq
);
5930 zilog
= zil_open(os
, ztest_get_data
);
5932 if (zilog
->zl_replaying_seq
!= 0 &&
5933 zilog
->zl_replaying_seq
< committed_seq
)
5934 fatal(0, "missing log records: replayed %llu < committed %llu",
5935 zilog
->zl_replaying_seq
, committed_seq
);
5941 ztest_dataset_close(int d
)
5943 ztest_ds_t
*zd
= &ztest_ds
[d
];
5945 zil_close(zd
->zd_zilog
);
5946 dmu_objset_disown(zd
->zd_os
, zd
);
5952 * Kick off threads to run tests on all datasets in parallel.
5955 ztest_run(ztest_shared_t
*zs
)
5960 kthread_t
*resume_thread
;
5965 ztest_exiting
= B_FALSE
;
5968 * Initialize parent/child shared state.
5970 mutex_init(&ztest_vdev_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
5971 VERIFY(rwlock_init(&ztest_name_lock
, USYNC_THREAD
, NULL
) == 0);
5973 zs
->zs_thread_start
= gethrtime();
5974 zs
->zs_thread_stop
=
5975 zs
->zs_thread_start
+ ztest_opts
.zo_passtime
* NANOSEC
;
5976 zs
->zs_thread_stop
= MIN(zs
->zs_thread_stop
, zs
->zs_proc_stop
);
5977 zs
->zs_thread_kill
= zs
->zs_thread_stop
;
5978 if (ztest_random(100) < ztest_opts
.zo_killrate
) {
5979 zs
->zs_thread_kill
-=
5980 ztest_random(ztest_opts
.zo_passtime
* NANOSEC
);
5983 mutex_init(&zcl
.zcl_callbacks_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
5985 list_create(&zcl
.zcl_callbacks
, sizeof (ztest_cb_data_t
),
5986 offsetof(ztest_cb_data_t
, zcd_node
));
5991 kernel_init(FREAD
| FWRITE
);
5992 VERIFY0(spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
5993 spa
->spa_debug
= B_TRUE
;
5994 metaslab_preload_limit
= ztest_random(20) + 1;
5997 VERIFY0(dmu_objset_own(ztest_opts
.zo_pool
,
5998 DMU_OST_ANY
, B_TRUE
, FTAG
, &os
));
5999 zs
->zs_guid
= dmu_objset_fsid_guid(os
);
6000 dmu_objset_disown(os
, FTAG
);
6002 spa
->spa_dedup_ditto
= 2 * ZIO_DEDUPDITTO_MIN
;
6005 * We don't expect the pool to suspend unless maxfaults == 0,
6006 * in which case ztest_fault_inject() temporarily takes away
6007 * the only valid replica.
6009 if (MAXFAULTS() == 0)
6010 spa
->spa_failmode
= ZIO_FAILURE_MODE_WAIT
;
6012 spa
->spa_failmode
= ZIO_FAILURE_MODE_PANIC
;
6015 * Create a thread to periodically resume suspended I/O.
6017 VERIFY3P((resume_thread
= zk_thread_create(NULL
, 0,
6018 (thread_func_t
)ztest_resume_thread
, spa
, TS_RUN
, NULL
, 0, 0,
6019 PTHREAD_CREATE_JOINABLE
)), !=, NULL
);
6023 * Set a deadman alarm to abort() if we hang.
6025 signal(SIGALRM
, ztest_deadman_alarm
);
6026 alarm((zs
->zs_thread_stop
- zs
->zs_thread_start
) / NANOSEC
+ GRACE
);
6030 * Verify that we can safely inquire about about any object,
6031 * whether it's allocated or not. To make it interesting,
6032 * we probe a 5-wide window around each power of two.
6033 * This hits all edge cases, including zero and the max.
6035 for (t
= 0; t
< 64; t
++) {
6036 for (d
= -5; d
<= 5; d
++) {
6037 error
= dmu_object_info(spa
->spa_meta_objset
,
6038 (1ULL << t
) + d
, NULL
);
6039 ASSERT(error
== 0 || error
== ENOENT
||
6045 * If we got any ENOSPC errors on the previous run, destroy something.
6047 if (zs
->zs_enospc_count
!= 0) {
6048 int d
= ztest_random(ztest_opts
.zo_datasets
);
6049 ztest_dataset_destroy(d
);
6051 zs
->zs_enospc_count
= 0;
6053 tid
= umem_zalloc(ztest_opts
.zo_threads
* sizeof (kt_did_t
),
6056 if (ztest_opts
.zo_verbose
>= 4)
6057 (void) printf("starting main threads...\n");
6060 * Kick off all the tests that run in parallel.
6062 for (t
= 0; t
< ztest_opts
.zo_threads
; t
++) {
6065 if (t
< ztest_opts
.zo_datasets
&&
6066 ztest_dataset_open(t
) != 0)
6069 VERIFY3P(thread
= zk_thread_create(NULL
, 0,
6070 (thread_func_t
)ztest_thread
,
6071 (void *)(uintptr_t)t
, TS_RUN
, NULL
, 0, 0,
6072 PTHREAD_CREATE_JOINABLE
), !=, NULL
);
6073 tid
[t
] = thread
->t_tid
;
6077 * Wait for all of the tests to complete. We go in reverse order
6078 * so we don't close datasets while threads are still using them.
6080 for (t
= ztest_opts
.zo_threads
- 1; t
>= 0; t
--) {
6081 thread_join(tid
[t
]);
6082 if (t
< ztest_opts
.zo_datasets
)
6083 ztest_dataset_close(t
);
6086 txg_wait_synced(spa_get_dsl(spa
), 0);
6088 zs
->zs_alloc
= metaslab_class_get_alloc(spa_normal_class(spa
));
6089 zs
->zs_space
= metaslab_class_get_space(spa_normal_class(spa
));
6091 umem_free(tid
, ztest_opts
.zo_threads
* sizeof (kt_did_t
));
6093 /* Kill the resume thread */
6094 ztest_exiting
= B_TRUE
;
6095 thread_join(resume_thread
->t_tid
);
6099 * Right before closing the pool, kick off a bunch of async I/O;
6100 * spa_close() should wait for it to complete.
6102 for (object
= 1; object
< 50; object
++) {
6103 dmu_prefetch(spa
->spa_meta_objset
, object
, 0, 0, 1ULL << 20,
6104 ZIO_PRIORITY_SYNC_READ
);
6107 /* Verify that at least one commit cb was called in a timely fashion */
6108 if (zc_cb_counter
>= ZTEST_COMMIT_CB_MIN_REG
)
6109 VERIFY0(zc_min_txg_delay
);
6111 spa_close(spa
, FTAG
);
6114 * Verify that we can loop over all pools.
6116 mutex_enter(&spa_namespace_lock
);
6117 for (spa
= spa_next(NULL
); spa
!= NULL
; spa
= spa_next(spa
))
6118 if (ztest_opts
.zo_verbose
> 3)
6119 (void) printf("spa_next: found %s\n", spa_name(spa
));
6120 mutex_exit(&spa_namespace_lock
);
6123 * Verify that we can export the pool and reimport it under a
6126 if (ztest_random(2) == 0) {
6127 char name
[MAXNAMELEN
];
6128 (void) snprintf(name
, MAXNAMELEN
, "%s_import",
6129 ztest_opts
.zo_pool
);
6130 ztest_spa_import_export(ztest_opts
.zo_pool
, name
);
6131 ztest_spa_import_export(name
, ztest_opts
.zo_pool
);
6136 list_destroy(&zcl
.zcl_callbacks
);
6137 mutex_destroy(&zcl
.zcl_callbacks_lock
);
6138 (void) rwlock_destroy(&ztest_name_lock
);
6139 mutex_destroy(&ztest_vdev_lock
);
6145 ztest_ds_t
*zd
= &ztest_ds
[0];
6149 if (ztest_opts
.zo_verbose
>= 3)
6150 (void) printf("testing spa_freeze()...\n");
6152 kernel_init(FREAD
| FWRITE
);
6153 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
6154 VERIFY3U(0, ==, ztest_dataset_open(0));
6155 spa
->spa_debug
= B_TRUE
;
6159 * Force the first log block to be transactionally allocated.
6160 * We have to do this before we freeze the pool -- otherwise
6161 * the log chain won't be anchored.
6163 while (BP_IS_HOLE(&zd
->zd_zilog
->zl_header
->zh_log
)) {
6164 ztest_dmu_object_alloc_free(zd
, 0);
6165 zil_commit(zd
->zd_zilog
, 0);
6168 txg_wait_synced(spa_get_dsl(spa
), 0);
6171 * Freeze the pool. This stops spa_sync() from doing anything,
6172 * so that the only way to record changes from now on is the ZIL.
6177 * Because it is hard to predict how much space a write will actually
6178 * require beforehand, we leave ourselves some fudge space to write over
6181 uint64_t capacity
= metaslab_class_get_space(spa_normal_class(spa
)) / 2;
6184 * Run tests that generate log records but don't alter the pool config
6185 * or depend on DSL sync tasks (snapshots, objset create/destroy, etc).
6186 * We do a txg_wait_synced() after each iteration to force the txg
6187 * to increase well beyond the last synced value in the uberblock.
6188 * The ZIL should be OK with that.
6190 * Run a random number of times less than zo_maxloops and ensure we do
6191 * not run out of space on the pool.
6193 while (ztest_random(10) != 0 &&
6194 numloops
++ < ztest_opts
.zo_maxloops
&&
6195 metaslab_class_get_alloc(spa_normal_class(spa
)) < capacity
) {
6197 ztest_od_init(&od
, 0, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0);
6198 VERIFY0(ztest_object_init(zd
, &od
, sizeof (od
), B_FALSE
));
6199 ztest_io(zd
, od
.od_object
,
6200 ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
6201 txg_wait_synced(spa_get_dsl(spa
), 0);
6205 * Commit all of the changes we just generated.
6207 zil_commit(zd
->zd_zilog
, 0);
6208 txg_wait_synced(spa_get_dsl(spa
), 0);
6211 * Close our dataset and close the pool.
6213 ztest_dataset_close(0);
6214 spa_close(spa
, FTAG
);
6218 * Open and close the pool and dataset to induce log replay.
6220 kernel_init(FREAD
| FWRITE
);
6221 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
6222 ASSERT(spa_freeze_txg(spa
) == UINT64_MAX
);
6223 VERIFY3U(0, ==, ztest_dataset_open(0));
6224 ztest_dataset_close(0);
6226 spa
->spa_debug
= B_TRUE
;
6228 txg_wait_synced(spa_get_dsl(spa
), 0);
6229 ztest_reguid(NULL
, 0);
6231 spa_close(spa
, FTAG
);
6236 print_time(hrtime_t t
, char *timebuf
)
6238 hrtime_t s
= t
/ NANOSEC
;
6239 hrtime_t m
= s
/ 60;
6240 hrtime_t h
= m
/ 60;
6241 hrtime_t d
= h
/ 24;
6250 (void) sprintf(timebuf
,
6251 "%llud%02lluh%02llum%02llus", d
, h
, m
, s
);
6253 (void) sprintf(timebuf
, "%lluh%02llum%02llus", h
, m
, s
);
6255 (void) sprintf(timebuf
, "%llum%02llus", m
, s
);
6257 (void) sprintf(timebuf
, "%llus", s
);
6261 make_random_props(void)
6265 VERIFY(nvlist_alloc(&props
, NV_UNIQUE_NAME
, 0) == 0);
6266 if (ztest_random(2) == 0)
6268 VERIFY(nvlist_add_uint64(props
, "autoreplace", 1) == 0);
6274 * Create a storage pool with the given name and initial vdev size.
6275 * Then test spa_freeze() functionality.
6278 ztest_init(ztest_shared_t
*zs
)
6281 nvlist_t
*nvroot
, *props
;
6284 mutex_init(&ztest_vdev_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
6285 VERIFY(rwlock_init(&ztest_name_lock
, USYNC_THREAD
, NULL
) == 0);
6287 kernel_init(FREAD
| FWRITE
);
6290 * Create the storage pool.
6292 (void) spa_destroy(ztest_opts
.zo_pool
);
6293 ztest_shared
->zs_vdev_next_leaf
= 0;
6295 zs
->zs_mirrors
= ztest_opts
.zo_mirrors
;
6296 nvroot
= make_vdev_root(NULL
, NULL
, NULL
, ztest_opts
.zo_vdev_size
, 0,
6297 0, ztest_opts
.zo_raidz
, zs
->zs_mirrors
, 1);
6298 props
= make_random_props();
6299 for (i
= 0; i
< SPA_FEATURES
; i
++) {
6301 VERIFY3S(-1, !=, asprintf(&buf
, "feature@%s",
6302 spa_feature_table
[i
].fi_uname
));
6303 VERIFY3U(0, ==, nvlist_add_uint64(props
, buf
, 0));
6306 VERIFY3U(0, ==, spa_create(ztest_opts
.zo_pool
, nvroot
, props
, NULL
));
6307 nvlist_free(nvroot
);
6310 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
6311 zs
->zs_metaslab_sz
=
6312 1ULL << spa
->spa_root_vdev
->vdev_child
[0]->vdev_ms_shift
;
6313 spa_close(spa
, FTAG
);
6317 ztest_run_zdb(ztest_opts
.zo_pool
);
6321 ztest_run_zdb(ztest_opts
.zo_pool
);
6323 (void) rwlock_destroy(&ztest_name_lock
);
6324 mutex_destroy(&ztest_vdev_lock
);
6330 static char ztest_name_data
[] = "/tmp/ztest.data.XXXXXX";
6332 ztest_fd_data
= mkstemp(ztest_name_data
);
6333 ASSERT3S(ztest_fd_data
, >=, 0);
6334 (void) unlink(ztest_name_data
);
6338 shared_data_size(ztest_shared_hdr_t
*hdr
)
6342 size
= hdr
->zh_hdr_size
;
6343 size
+= hdr
->zh_opts_size
;
6344 size
+= hdr
->zh_size
;
6345 size
+= hdr
->zh_stats_size
* hdr
->zh_stats_count
;
6346 size
+= hdr
->zh_ds_size
* hdr
->zh_ds_count
;
6355 ztest_shared_hdr_t
*hdr
;
6357 hdr
= (void *)mmap(0, P2ROUNDUP(sizeof (*hdr
), getpagesize()),
6358 PROT_READ
| PROT_WRITE
, MAP_SHARED
, ztest_fd_data
, 0);
6359 ASSERT(hdr
!= MAP_FAILED
);
6361 VERIFY3U(0, ==, ftruncate(ztest_fd_data
, sizeof (ztest_shared_hdr_t
)));
6363 hdr
->zh_hdr_size
= sizeof (ztest_shared_hdr_t
);
6364 hdr
->zh_opts_size
= sizeof (ztest_shared_opts_t
);
6365 hdr
->zh_size
= sizeof (ztest_shared_t
);
6366 hdr
->zh_stats_size
= sizeof (ztest_shared_callstate_t
);
6367 hdr
->zh_stats_count
= ZTEST_FUNCS
;
6368 hdr
->zh_ds_size
= sizeof (ztest_shared_ds_t
);
6369 hdr
->zh_ds_count
= ztest_opts
.zo_datasets
;
6371 size
= shared_data_size(hdr
);
6372 VERIFY3U(0, ==, ftruncate(ztest_fd_data
, size
));
6374 (void) munmap((caddr_t
)hdr
, P2ROUNDUP(sizeof (*hdr
), getpagesize()));
6381 ztest_shared_hdr_t
*hdr
;
6384 hdr
= (void *)mmap(0, P2ROUNDUP(sizeof (*hdr
), getpagesize()),
6385 PROT_READ
, MAP_SHARED
, ztest_fd_data
, 0);
6386 ASSERT(hdr
!= MAP_FAILED
);
6388 size
= shared_data_size(hdr
);
6390 (void) munmap((caddr_t
)hdr
, P2ROUNDUP(sizeof (*hdr
), getpagesize()));
6391 hdr
= ztest_shared_hdr
= (void *)mmap(0, P2ROUNDUP(size
, getpagesize()),
6392 PROT_READ
| PROT_WRITE
, MAP_SHARED
, ztest_fd_data
, 0);
6393 ASSERT(hdr
!= MAP_FAILED
);
6394 buf
= (uint8_t *)hdr
;
6396 offset
= hdr
->zh_hdr_size
;
6397 ztest_shared_opts
= (void *)&buf
[offset
];
6398 offset
+= hdr
->zh_opts_size
;
6399 ztest_shared
= (void *)&buf
[offset
];
6400 offset
+= hdr
->zh_size
;
6401 ztest_shared_callstate
= (void *)&buf
[offset
];
6402 offset
+= hdr
->zh_stats_size
* hdr
->zh_stats_count
;
6403 ztest_shared_ds
= (void *)&buf
[offset
];
6407 exec_child(char *cmd
, char *libpath
, boolean_t ignorekill
, int *statusp
)
6411 char *cmdbuf
= NULL
;
6416 cmdbuf
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
6417 (void) strlcpy(cmdbuf
, getexecname(), MAXPATHLEN
);
6422 fatal(1, "fork failed");
6424 if (pid
== 0) { /* child */
6425 char *emptyargv
[2] = { cmd
, NULL
};
6426 char fd_data_str
[12];
6428 struct rlimit rl
= { 1024, 1024 };
6429 (void) setrlimit(RLIMIT_NOFILE
, &rl
);
6431 (void) close(ztest_fd_rand
);
6432 VERIFY(11 >= snprintf(fd_data_str
, 12, "%d", ztest_fd_data
));
6433 VERIFY(0 == setenv("ZTEST_FD_DATA", fd_data_str
, 1));
6435 (void) enable_extended_FILE_stdio(-1, -1);
6436 if (libpath
!= NULL
)
6437 VERIFY(0 == setenv("LD_LIBRARY_PATH", libpath
, 1));
6438 (void) execv(cmd
, emptyargv
);
6439 ztest_dump_core
= B_FALSE
;
6440 fatal(B_TRUE
, "exec failed: %s", cmd
);
6443 if (cmdbuf
!= NULL
) {
6444 umem_free(cmdbuf
, MAXPATHLEN
);
6448 while (waitpid(pid
, &status
, 0) != pid
)
6450 if (statusp
!= NULL
)
6453 if (WIFEXITED(status
)) {
6454 if (WEXITSTATUS(status
) != 0) {
6455 (void) fprintf(stderr
, "child exited with code %d\n",
6456 WEXITSTATUS(status
));
6460 } else if (WIFSIGNALED(status
)) {
6461 if (!ignorekill
|| WTERMSIG(status
) != SIGKILL
) {
6462 (void) fprintf(stderr
, "child died with signal %d\n",
6468 (void) fprintf(stderr
, "something strange happened to child\n");
6475 ztest_run_init(void)
6479 ztest_shared_t
*zs
= ztest_shared
;
6481 ASSERT(ztest_opts
.zo_init
!= 0);
6484 * Blow away any existing copy of zpool.cache
6486 (void) remove(spa_config_path
);
6489 * Create and initialize our storage pool.
6491 for (i
= 1; i
<= ztest_opts
.zo_init
; i
++) {
6492 bzero(zs
, sizeof (ztest_shared_t
));
6493 if (ztest_opts
.zo_verbose
>= 3 &&
6494 ztest_opts
.zo_init
!= 1) {
6495 (void) printf("ztest_init(), pass %d\n", i
);
6502 main(int argc
, char **argv
)
6510 ztest_shared_callstate_t
*zc
;
6517 char *fd_data_str
= getenv("ZTEST_FD_DATA");
6518 struct sigaction action
;
6520 (void) setvbuf(stdout
, NULL
, _IOLBF
, 0);
6522 dprintf_setup(&argc
, argv
);
6524 action
.sa_handler
= sig_handler
;
6525 sigemptyset(&action
.sa_mask
);
6526 action
.sa_flags
= 0;
6528 if (sigaction(SIGSEGV
, &action
, NULL
) < 0) {
6529 (void) fprintf(stderr
, "ztest: cannot catch SIGSEGV: %s.\n",
6534 if (sigaction(SIGABRT
, &action
, NULL
) < 0) {
6535 (void) fprintf(stderr
, "ztest: cannot catch SIGABRT: %s.\n",
6540 ztest_fd_rand
= open("/dev/urandom", O_RDONLY
);
6541 ASSERT3S(ztest_fd_rand
, >=, 0);
6544 process_options(argc
, argv
);
6549 bcopy(&ztest_opts
, ztest_shared_opts
,
6550 sizeof (*ztest_shared_opts
));
6552 ztest_fd_data
= atoi(fd_data_str
);
6554 bcopy(ztest_shared_opts
, &ztest_opts
, sizeof (ztest_opts
));
6556 ASSERT3U(ztest_opts
.zo_datasets
, ==, ztest_shared_hdr
->zh_ds_count
);
6558 /* Override location of zpool.cache */
6559 VERIFY(asprintf((char **)&spa_config_path
, "%s/zpool.cache",
6560 ztest_opts
.zo_dir
) != -1);
6562 ztest_ds
= umem_alloc(ztest_opts
.zo_datasets
* sizeof (ztest_ds_t
),
6567 metaslab_gang_bang
= ztest_opts
.zo_metaslab_gang_bang
;
6568 metaslab_df_alloc_threshold
=
6569 zs
->zs_metaslab_df_alloc_threshold
;
6578 hasalt
= (strlen(ztest_opts
.zo_alt_ztest
) != 0);
6580 if (ztest_opts
.zo_verbose
>= 1) {
6581 (void) printf("%llu vdevs, %d datasets, %d threads,"
6582 " %llu seconds...\n",
6583 (u_longlong_t
)ztest_opts
.zo_vdevs
,
6584 ztest_opts
.zo_datasets
,
6585 ztest_opts
.zo_threads
,
6586 (u_longlong_t
)ztest_opts
.zo_time
);
6589 cmd
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
6590 (void) strlcpy(cmd
, getexecname(), MAXNAMELEN
);
6592 zs
->zs_do_init
= B_TRUE
;
6593 if (strlen(ztest_opts
.zo_alt_ztest
) != 0) {
6594 if (ztest_opts
.zo_verbose
>= 1) {
6595 (void) printf("Executing older ztest for "
6596 "initialization: %s\n", ztest_opts
.zo_alt_ztest
);
6598 VERIFY(!exec_child(ztest_opts
.zo_alt_ztest
,
6599 ztest_opts
.zo_alt_libpath
, B_FALSE
, NULL
));
6601 VERIFY(!exec_child(NULL
, NULL
, B_FALSE
, NULL
));
6603 zs
->zs_do_init
= B_FALSE
;
6605 zs
->zs_proc_start
= gethrtime();
6606 zs
->zs_proc_stop
= zs
->zs_proc_start
+ ztest_opts
.zo_time
* NANOSEC
;
6608 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
6609 zi
= &ztest_info
[f
];
6610 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6611 if (zs
->zs_proc_start
+ zi
->zi_interval
[0] > zs
->zs_proc_stop
)
6612 zc
->zc_next
= UINT64_MAX
;
6614 zc
->zc_next
= zs
->zs_proc_start
+
6615 ztest_random(2 * zi
->zi_interval
[0] + 1);
6619 * Run the tests in a loop. These tests include fault injection
6620 * to verify that self-healing data works, and forced crashes
6621 * to verify that we never lose on-disk consistency.
6623 while (gethrtime() < zs
->zs_proc_stop
) {
6628 * Initialize the workload counters for each function.
6630 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
6631 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6636 /* Set the allocation switch size */
6637 zs
->zs_metaslab_df_alloc_threshold
=
6638 ztest_random(zs
->zs_metaslab_sz
/ 4) + 1;
6640 if (!hasalt
|| ztest_random(2) == 0) {
6641 if (hasalt
&& ztest_opts
.zo_verbose
>= 1) {
6642 (void) printf("Executing newer ztest: %s\n",
6646 killed
= exec_child(cmd
, NULL
, B_TRUE
, &status
);
6648 if (hasalt
&& ztest_opts
.zo_verbose
>= 1) {
6649 (void) printf("Executing older ztest: %s\n",
6650 ztest_opts
.zo_alt_ztest
);
6653 killed
= exec_child(ztest_opts
.zo_alt_ztest
,
6654 ztest_opts
.zo_alt_libpath
, B_TRUE
, &status
);
6661 if (ztest_opts
.zo_verbose
>= 1) {
6662 hrtime_t now
= gethrtime();
6664 now
= MIN(now
, zs
->zs_proc_stop
);
6665 print_time(zs
->zs_proc_stop
- now
, timebuf
);
6666 nicenum(zs
->zs_space
, numbuf
);
6668 (void) printf("Pass %3d, %8s, %3llu ENOSPC, "
6669 "%4.1f%% of %5s used, %3.0f%% done, %8s to go\n",
6671 WIFEXITED(status
) ? "Complete" : "SIGKILL",
6672 (u_longlong_t
)zs
->zs_enospc_count
,
6673 100.0 * zs
->zs_alloc
/ zs
->zs_space
,
6675 100.0 * (now
- zs
->zs_proc_start
) /
6676 (ztest_opts
.zo_time
* NANOSEC
), timebuf
);
6679 if (ztest_opts
.zo_verbose
>= 2) {
6680 (void) printf("\nWorkload summary:\n\n");
6681 (void) printf("%7s %9s %s\n",
6682 "Calls", "Time", "Function");
6683 (void) printf("%7s %9s %s\n",
6684 "-----", "----", "--------");
6685 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
6686 zi
= &ztest_info
[f
];
6687 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6688 print_time(zc
->zc_time
, timebuf
);
6689 (void) printf("%7llu %9s %s\n",
6690 (u_longlong_t
)zc
->zc_count
, timebuf
,
6693 (void) printf("\n");
6697 * It's possible that we killed a child during a rename test,
6698 * in which case we'll have a 'ztest_tmp' pool lying around
6699 * instead of 'ztest'. Do a blind rename in case this happened.
6702 if (spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
) == 0) {
6703 spa_close(spa
, FTAG
);
6705 char tmpname
[MAXNAMELEN
];
6707 kernel_init(FREAD
| FWRITE
);
6708 (void) snprintf(tmpname
, sizeof (tmpname
), "%s_tmp",
6709 ztest_opts
.zo_pool
);
6710 (void) spa_rename(tmpname
, ztest_opts
.zo_pool
);
6714 ztest_run_zdb(ztest_opts
.zo_pool
);
6717 if (ztest_opts
.zo_verbose
>= 1) {
6719 (void) printf("%d runs of older ztest: %s\n", older
,
6720 ztest_opts
.zo_alt_ztest
);
6721 (void) printf("%d runs of newer ztest: %s\n", newer
,
6724 (void) printf("%d killed, %d completed, %.0f%% kill rate\n",
6725 kills
, iters
- kills
, (100.0 * kills
) / MAX(1, iters
));
6728 umem_free(cmd
, MAXNAMELEN
);