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) 2013 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 compatability
56 * testing is enabled ztest will sometimes run the "older" version
57 * of ztest after a SIGKILL.
59 * (6) To verify that we don't have future leaks or temporal incursions,
60 * many of the functional tests record the transaction group number
61 * as part of their data. When reading old data, they verify that
62 * the transaction group number is less than the current, open txg.
63 * If you add a new test, please do this if applicable.
65 * (7) Threads are created with a reduced stack size, for sanity checking.
66 * Therefore, it's important not to allocate huge buffers on the stack.
68 * When run with no arguments, ztest runs for about five minutes and
69 * produces no output if successful. To get a little bit of information,
70 * specify -V. To get more information, specify -VV, and so on.
72 * To turn this into an overnight stress test, use -T to specify run time.
74 * You can ask more more vdevs [-v], datasets [-d], or threads [-t]
75 * to increase the pool capacity, fanout, and overall stress level.
77 * Use the -k option to set the desired frequency of kills.
79 * When ztest invokes itself it passes all relevant information through a
80 * temporary file which is mmap-ed in the child process. This allows shared
81 * memory to survive the exec syscall. The ztest_shared_hdr_t struct is always
82 * stored at offset 0 of this file and contains information on the size and
83 * number of shared structures in the file. The information stored in this file
84 * must remain backwards compatible with older versions of ztest so that
85 * ztest can invoke them during backwards compatibility testing (-B).
88 #include <sys/zfs_context.h>
94 #include <sys/dmu_objset.h>
100 #include <sys/resource.h>
103 #include <sys/zil_impl.h>
104 #include <sys/vdev_impl.h>
105 #include <sys/vdev_file.h>
106 #include <sys/spa_impl.h>
107 #include <sys/metaslab_impl.h>
108 #include <sys/dsl_prop.h>
109 #include <sys/dsl_dataset.h>
110 #include <sys/dsl_destroy.h>
111 #include <sys/dsl_scan.h>
112 #include <sys/zio_checksum.h>
113 #include <sys/refcount.h>
114 #include <sys/zfeature.h>
115 #include <sys/dsl_userhold.h>
117 #include <stdio_ext.h>
125 #include <sys/fs/zfs.h>
126 #include <libnvpair.h>
128 static int ztest_fd_data
= -1;
129 static int ztest_fd_rand
= -1;
131 typedef struct ztest_shared_hdr
{
132 uint64_t zh_hdr_size
;
133 uint64_t zh_opts_size
;
135 uint64_t zh_stats_size
;
136 uint64_t zh_stats_count
;
138 uint64_t zh_ds_count
;
139 } ztest_shared_hdr_t
;
141 static ztest_shared_hdr_t
*ztest_shared_hdr
;
143 typedef struct ztest_shared_opts
{
144 char zo_pool
[MAXNAMELEN
];
145 char zo_dir
[MAXNAMELEN
];
146 char zo_alt_ztest
[MAXNAMELEN
];
147 char zo_alt_libpath
[MAXNAMELEN
];
149 uint64_t zo_vdevtime
;
157 uint64_t zo_passtime
;
158 uint64_t zo_killrate
;
162 uint64_t zo_maxloops
;
163 uint64_t zo_metaslab_gang_bang
;
164 } ztest_shared_opts_t
;
166 static const ztest_shared_opts_t ztest_opts_defaults
= {
167 .zo_pool
= { 'z', 't', 'e', 's', 't', '\0' },
168 .zo_dir
= { '/', 't', 'm', 'p', '\0' },
169 .zo_alt_ztest
= { '\0' },
170 .zo_alt_libpath
= { '\0' },
172 .zo_ashift
= SPA_MINBLOCKSHIFT
,
175 .zo_raidz_parity
= 1,
176 .zo_vdev_size
= SPA_MINDEVSIZE
,
179 .zo_passtime
= 60, /* 60 seconds */
180 .zo_killrate
= 70, /* 70% kill rate */
183 .zo_time
= 300, /* 5 minutes */
184 .zo_maxloops
= 50, /* max loops during spa_freeze() */
185 .zo_metaslab_gang_bang
= 32 << 10
188 extern uint64_t metaslab_gang_bang
;
189 extern uint64_t metaslab_df_alloc_threshold
;
191 static ztest_shared_opts_t
*ztest_shared_opts
;
192 static ztest_shared_opts_t ztest_opts
;
194 typedef struct ztest_shared_ds
{
198 static ztest_shared_ds_t
*ztest_shared_ds
;
199 #define ZTEST_GET_SHARED_DS(d) (&ztest_shared_ds[d])
201 #define BT_MAGIC 0x123456789abcdefULL
202 #define MAXFAULTS() \
203 (MAX(zs->zs_mirrors, 1) * (ztest_opts.zo_raidz_parity + 1) - 1)
207 ZTEST_IO_WRITE_PATTERN
,
208 ZTEST_IO_WRITE_ZEROES
,
215 typedef struct ztest_block_tag
{
225 typedef struct bufwad
{
232 * XXX -- fix zfs range locks to be generic so we can use them here.
254 #define ZTEST_RANGE_LOCKS 64
255 #define ZTEST_OBJECT_LOCKS 64
258 * Object descriptor. Used as a template for object lookup/create/remove.
260 typedef struct ztest_od
{
263 dmu_object_type_t od_type
;
264 dmu_object_type_t od_crtype
;
265 uint64_t od_blocksize
;
266 uint64_t od_crblocksize
;
269 char od_name
[MAXNAMELEN
];
275 typedef struct ztest_ds
{
276 ztest_shared_ds_t
*zd_shared
;
278 krwlock_t zd_zilog_lock
;
280 ztest_od_t
*zd_od
; /* debugging aid */
281 char zd_name
[MAXNAMELEN
];
282 kmutex_t zd_dirobj_lock
;
283 rll_t zd_object_lock
[ZTEST_OBJECT_LOCKS
];
284 rll_t zd_range_lock
[ZTEST_RANGE_LOCKS
];
288 * Per-iteration state.
290 typedef void ztest_func_t(ztest_ds_t
*zd
, uint64_t id
);
292 typedef struct ztest_info
{
293 ztest_func_t
*zi_func
; /* test function */
294 uint64_t zi_iters
; /* iterations per execution */
295 uint64_t *zi_interval
; /* execute every <interval> seconds */
298 typedef struct ztest_shared_callstate
{
299 uint64_t zc_count
; /* per-pass count */
300 uint64_t zc_time
; /* per-pass time */
301 uint64_t zc_next
; /* next time to call this function */
302 } ztest_shared_callstate_t
;
304 static ztest_shared_callstate_t
*ztest_shared_callstate
;
305 #define ZTEST_GET_SHARED_CALLSTATE(c) (&ztest_shared_callstate[c])
308 * Note: these aren't static because we want dladdr() to work.
310 ztest_func_t ztest_dmu_read_write
;
311 ztest_func_t ztest_dmu_write_parallel
;
312 ztest_func_t ztest_dmu_object_alloc_free
;
313 ztest_func_t ztest_dmu_commit_callbacks
;
314 ztest_func_t ztest_zap
;
315 ztest_func_t ztest_zap_parallel
;
316 ztest_func_t ztest_zil_commit
;
317 ztest_func_t ztest_zil_remount
;
318 ztest_func_t ztest_dmu_read_write_zcopy
;
319 ztest_func_t ztest_dmu_objset_create_destroy
;
320 ztest_func_t ztest_dmu_prealloc
;
321 ztest_func_t ztest_fzap
;
322 ztest_func_t ztest_dmu_snapshot_create_destroy
;
323 ztest_func_t ztest_dsl_prop_get_set
;
324 ztest_func_t ztest_spa_prop_get_set
;
325 ztest_func_t ztest_spa_create_destroy
;
326 ztest_func_t ztest_fault_inject
;
327 ztest_func_t ztest_ddt_repair
;
328 ztest_func_t ztest_dmu_snapshot_hold
;
329 ztest_func_t ztest_spa_rename
;
330 ztest_func_t ztest_scrub
;
331 ztest_func_t ztest_dsl_dataset_promote_busy
;
332 ztest_func_t ztest_vdev_attach_detach
;
333 ztest_func_t ztest_vdev_LUN_growth
;
334 ztest_func_t ztest_vdev_add_remove
;
335 ztest_func_t ztest_vdev_aux_add_remove
;
336 ztest_func_t ztest_split_pool
;
337 ztest_func_t ztest_reguid
;
338 ztest_func_t ztest_spa_upgrade
;
340 uint64_t zopt_always
= 0ULL * NANOSEC
; /* all the time */
341 uint64_t zopt_incessant
= 1ULL * NANOSEC
/ 10; /* every 1/10 second */
342 uint64_t zopt_often
= 1ULL * NANOSEC
; /* every second */
343 uint64_t zopt_sometimes
= 10ULL * NANOSEC
; /* every 10 seconds */
344 uint64_t zopt_rarely
= 60ULL * NANOSEC
; /* every 60 seconds */
346 ztest_info_t ztest_info
[] = {
347 { ztest_dmu_read_write
, 1, &zopt_always
},
348 { ztest_dmu_write_parallel
, 10, &zopt_always
},
349 { ztest_dmu_object_alloc_free
, 1, &zopt_always
},
350 { ztest_dmu_commit_callbacks
, 1, &zopt_always
},
351 { ztest_zap
, 30, &zopt_always
},
352 { ztest_zap_parallel
, 100, &zopt_always
},
353 { ztest_split_pool
, 1, &zopt_always
},
354 { ztest_zil_commit
, 1, &zopt_incessant
},
355 { ztest_zil_remount
, 1, &zopt_sometimes
},
356 { ztest_dmu_read_write_zcopy
, 1, &zopt_often
},
357 { ztest_dmu_objset_create_destroy
, 1, &zopt_often
},
358 { ztest_dsl_prop_get_set
, 1, &zopt_often
},
359 { ztest_spa_prop_get_set
, 1, &zopt_sometimes
},
361 { ztest_dmu_prealloc
, 1, &zopt_sometimes
},
363 { ztest_fzap
, 1, &zopt_sometimes
},
364 { ztest_dmu_snapshot_create_destroy
, 1, &zopt_sometimes
},
365 { ztest_spa_create_destroy
, 1, &zopt_sometimes
},
366 { ztest_fault_inject
, 1, &zopt_sometimes
},
367 { ztest_ddt_repair
, 1, &zopt_sometimes
},
368 { ztest_dmu_snapshot_hold
, 1, &zopt_sometimes
},
369 { ztest_reguid
, 1, &zopt_rarely
},
370 { ztest_spa_rename
, 1, &zopt_rarely
},
371 { ztest_scrub
, 1, &zopt_rarely
},
372 { ztest_spa_upgrade
, 1, &zopt_rarely
},
373 { ztest_dsl_dataset_promote_busy
, 1, &zopt_rarely
},
374 { ztest_vdev_attach_detach
, 1, &zopt_sometimes
},
375 { ztest_vdev_LUN_growth
, 1, &zopt_rarely
},
376 { ztest_vdev_add_remove
, 1,
377 &ztest_opts
.zo_vdevtime
},
378 { ztest_vdev_aux_add_remove
, 1,
379 &ztest_opts
.zo_vdevtime
},
382 #define ZTEST_FUNCS (sizeof (ztest_info) / sizeof (ztest_info_t))
385 * The following struct is used to hold a list of uncalled commit callbacks.
386 * The callbacks are ordered by txg number.
388 typedef struct ztest_cb_list
{
389 kmutex_t zcl_callbacks_lock
;
390 list_t zcl_callbacks
;
394 * Stuff we need to share writably between parent and child.
396 typedef struct ztest_shared
{
397 boolean_t zs_do_init
;
398 hrtime_t zs_proc_start
;
399 hrtime_t zs_proc_stop
;
400 hrtime_t zs_thread_start
;
401 hrtime_t zs_thread_stop
;
402 hrtime_t zs_thread_kill
;
403 uint64_t zs_enospc_count
;
404 uint64_t zs_vdev_next_leaf
;
405 uint64_t zs_vdev_aux
;
410 uint64_t zs_metaslab_sz
;
411 uint64_t zs_metaslab_df_alloc_threshold
;
415 #define ID_PARALLEL -1ULL
417 static char ztest_dev_template
[] = "%s/%s.%llua";
418 static char ztest_aux_template
[] = "%s/%s.%s.%llu";
419 ztest_shared_t
*ztest_shared
;
421 static spa_t
*ztest_spa
= NULL
;
422 static ztest_ds_t
*ztest_ds
;
424 static kmutex_t ztest_vdev_lock
;
427 * The ztest_name_lock protects the pool and dataset namespace used by
428 * the individual tests. To modify the namespace, consumers must grab
429 * this lock as writer. Grabbing the lock as reader will ensure that the
430 * namespace does not change while the lock is held.
432 static krwlock_t ztest_name_lock
;
434 static boolean_t ztest_dump_core
= B_TRUE
;
435 static boolean_t ztest_exiting
;
437 /* Global commit callback list */
438 static ztest_cb_list_t zcl
;
439 /* Commit cb delay */
440 static uint64_t zc_min_txg_delay
= UINT64_MAX
;
441 static int zc_cb_counter
= 0;
444 * Minimum number of commit callbacks that need to be registered for us to check
445 * whether the minimum txg delay is acceptable.
447 #define ZTEST_COMMIT_CB_MIN_REG 100
450 * If a number of txgs equal to this threshold have been created after a commit
451 * callback has been registered but not called, then we assume there is an
452 * implementation bug.
454 #define ZTEST_COMMIT_CB_THRESH (TXG_CONCURRENT_STATES + 1000)
456 extern uint64_t metaslab_gang_bang
;
457 extern uint64_t metaslab_df_alloc_threshold
;
460 ZTEST_META_DNODE
= 0,
465 static void usage(boolean_t
) __NORETURN
;
468 * These libumem hooks provide a reasonable set of defaults for the allocator's
469 * debugging facilities.
472 _umem_debug_init(void)
474 return ("default,verbose"); /* $UMEM_DEBUG setting */
478 _umem_logging_init(void)
480 return ("fail,contents"); /* $UMEM_LOGGING setting */
483 #define FATAL_MSG_SZ 1024
488 fatal(int do_perror
, char *message
, ...)
491 int save_errno
= errno
;
494 (void) fflush(stdout
);
495 buf
= umem_alloc(FATAL_MSG_SZ
, UMEM_NOFAIL
);
497 va_start(args
, message
);
498 (void) sprintf(buf
, "ztest: ");
500 (void) vsprintf(buf
+ strlen(buf
), message
, args
);
503 (void) snprintf(buf
+ strlen(buf
), FATAL_MSG_SZ
- strlen(buf
),
504 ": %s", strerror(save_errno
));
506 (void) fprintf(stderr
, "%s\n", buf
);
507 fatal_msg
= buf
; /* to ease debugging */
514 str2shift(const char *buf
)
516 const char *ends
= "BKMGTPEZ";
521 for (i
= 0; i
< strlen(ends
); i
++) {
522 if (toupper(buf
[0]) == ends
[i
])
525 if (i
== strlen(ends
)) {
526 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n",
530 if (buf
[1] == '\0' || (toupper(buf
[1]) == 'B' && buf
[2] == '\0')) {
533 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n", buf
);
539 nicenumtoull(const char *buf
)
544 val
= strtoull(buf
, &end
, 0);
546 (void) fprintf(stderr
, "ztest: bad numeric value: %s\n", buf
);
548 } else if (end
[0] == '.') {
549 double fval
= strtod(buf
, &end
);
550 fval
*= pow(2, str2shift(end
));
551 if (fval
> UINT64_MAX
) {
552 (void) fprintf(stderr
, "ztest: value too large: %s\n",
556 val
= (uint64_t)fval
;
558 int shift
= str2shift(end
);
559 if (shift
>= 64 || (val
<< shift
) >> shift
!= val
) {
560 (void) fprintf(stderr
, "ztest: value too large: %s\n",
570 usage(boolean_t requested
)
572 const ztest_shared_opts_t
*zo
= &ztest_opts_defaults
;
574 char nice_vdev_size
[10];
575 char nice_gang_bang
[10];
576 FILE *fp
= requested
? stdout
: stderr
;
578 nicenum(zo
->zo_vdev_size
, nice_vdev_size
);
579 nicenum(zo
->zo_metaslab_gang_bang
, nice_gang_bang
);
581 (void) fprintf(fp
, "Usage: %s\n"
582 "\t[-v vdevs (default: %llu)]\n"
583 "\t[-s size_of_each_vdev (default: %s)]\n"
584 "\t[-a alignment_shift (default: %d)] use 0 for random\n"
585 "\t[-m mirror_copies (default: %d)]\n"
586 "\t[-r raidz_disks (default: %d)]\n"
587 "\t[-R raidz_parity (default: %d)]\n"
588 "\t[-d datasets (default: %d)]\n"
589 "\t[-t threads (default: %d)]\n"
590 "\t[-g gang_block_threshold (default: %s)]\n"
591 "\t[-i init_count (default: %d)] initialize pool i times\n"
592 "\t[-k kill_percentage (default: %llu%%)]\n"
593 "\t[-p pool_name (default: %s)]\n"
594 "\t[-f dir (default: %s)] file directory for vdev files\n"
595 "\t[-V] verbose (use multiple times for ever more blather)\n"
596 "\t[-E] use existing pool instead of creating new one\n"
597 "\t[-T time (default: %llu sec)] total run time\n"
598 "\t[-F freezeloops (default: %llu)] max loops in spa_freeze()\n"
599 "\t[-P passtime (default: %llu sec)] time per pass\n"
600 "\t[-B alt_ztest (default: <none>)] alternate ztest path\n"
601 "\t[-h] (print help)\n"
604 (u_longlong_t
)zo
->zo_vdevs
, /* -v */
605 nice_vdev_size
, /* -s */
606 zo
->zo_ashift
, /* -a */
607 zo
->zo_mirrors
, /* -m */
608 zo
->zo_raidz
, /* -r */
609 zo
->zo_raidz_parity
, /* -R */
610 zo
->zo_datasets
, /* -d */
611 zo
->zo_threads
, /* -t */
612 nice_gang_bang
, /* -g */
613 zo
->zo_init
, /* -i */
614 (u_longlong_t
)zo
->zo_killrate
, /* -k */
615 zo
->zo_pool
, /* -p */
617 (u_longlong_t
)zo
->zo_time
, /* -T */
618 (u_longlong_t
)zo
->zo_maxloops
, /* -F */
619 (u_longlong_t
)zo
->zo_passtime
);
620 exit(requested
? 0 : 1);
624 process_options(int argc
, char **argv
)
627 ztest_shared_opts_t
*zo
= &ztest_opts
;
631 char altdir
[MAXNAMELEN
] = { 0 };
633 bcopy(&ztest_opts_defaults
, zo
, sizeof (*zo
));
635 while ((opt
= getopt(argc
, argv
,
636 "v:s:a:m:r:R:d:t:g:i:k:p:f:VET:P:hF:B:")) != EOF
) {
653 value
= nicenumtoull(optarg
);
657 zo
->zo_vdevs
= value
;
660 zo
->zo_vdev_size
= MAX(SPA_MINDEVSIZE
, value
);
663 zo
->zo_ashift
= value
;
666 zo
->zo_mirrors
= value
;
669 zo
->zo_raidz
= MAX(1, value
);
672 zo
->zo_raidz_parity
= MIN(MAX(value
, 1), 3);
675 zo
->zo_datasets
= MAX(1, value
);
678 zo
->zo_threads
= MAX(1, value
);
681 zo
->zo_metaslab_gang_bang
= MAX(SPA_MINBLOCKSIZE
<< 1,
688 zo
->zo_killrate
= value
;
691 (void) strlcpy(zo
->zo_pool
, optarg
,
692 sizeof (zo
->zo_pool
));
695 path
= realpath(optarg
, NULL
);
697 (void) fprintf(stderr
, "error: %s: %s\n",
698 optarg
, strerror(errno
));
701 (void) strlcpy(zo
->zo_dir
, path
,
702 sizeof (zo
->zo_dir
));
715 zo
->zo_passtime
= MAX(1, value
);
718 zo
->zo_maxloops
= MAX(1, value
);
721 (void) strlcpy(altdir
, optarg
, sizeof (altdir
));
733 zo
->zo_raidz_parity
= MIN(zo
->zo_raidz_parity
, zo
->zo_raidz
- 1);
736 (zo
->zo_vdevs
> 0 ? zo
->zo_time
* NANOSEC
/ zo
->zo_vdevs
:
739 if (strlen(altdir
) > 0) {
747 cmd
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
748 realaltdir
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
750 VERIFY(NULL
!= realpath(getexecname(), cmd
));
751 if (0 != access(altdir
, F_OK
)) {
752 ztest_dump_core
= B_FALSE
;
753 fatal(B_TRUE
, "invalid alternate ztest path: %s",
756 VERIFY(NULL
!= realpath(altdir
, realaltdir
));
759 * 'cmd' should be of the form "<anything>/usr/bin/<isa>/ztest".
760 * We want to extract <isa> to determine if we should use
761 * 32 or 64 bit binaries.
763 bin
= strstr(cmd
, "/usr/bin/");
764 ztest
= strstr(bin
, "/ztest");
766 isalen
= ztest
- isa
;
767 (void) snprintf(zo
->zo_alt_ztest
, sizeof (zo
->zo_alt_ztest
),
768 "%s/usr/bin/%.*s/ztest", realaltdir
, isalen
, isa
);
769 (void) snprintf(zo
->zo_alt_libpath
, sizeof (zo
->zo_alt_libpath
),
770 "%s/usr/lib/%.*s", realaltdir
, isalen
, isa
);
772 if (0 != access(zo
->zo_alt_ztest
, X_OK
)) {
773 ztest_dump_core
= B_FALSE
;
774 fatal(B_TRUE
, "invalid alternate ztest: %s",
776 } else if (0 != access(zo
->zo_alt_libpath
, X_OK
)) {
777 ztest_dump_core
= B_FALSE
;
778 fatal(B_TRUE
, "invalid alternate lib directory %s",
782 umem_free(cmd
, MAXPATHLEN
);
783 umem_free(realaltdir
, MAXPATHLEN
);
788 ztest_kill(ztest_shared_t
*zs
)
790 zs
->zs_alloc
= metaslab_class_get_alloc(spa_normal_class(ztest_spa
));
791 zs
->zs_space
= metaslab_class_get_space(spa_normal_class(ztest_spa
));
794 * Before we kill off ztest, make sure that the config is updated.
795 * See comment above spa_config_sync().
797 mutex_enter(&spa_namespace_lock
);
798 spa_config_sync(ztest_spa
, B_FALSE
, B_FALSE
);
799 mutex_exit(&spa_namespace_lock
);
801 if (ztest_opts
.zo_verbose
>= 3)
802 zfs_dbgmsg_print(FTAG
);
804 (void) kill(getpid(), SIGKILL
);
808 ztest_random(uint64_t range
)
812 ASSERT3S(ztest_fd_rand
, >=, 0);
817 if (read(ztest_fd_rand
, &r
, sizeof (r
)) != sizeof (r
))
818 fatal(1, "short read from /dev/urandom");
825 ztest_record_enospc(const char *s
)
827 ztest_shared
->zs_enospc_count
++;
831 ztest_get_ashift(void)
833 if (ztest_opts
.zo_ashift
== 0)
834 return (SPA_MINBLOCKSHIFT
+ ztest_random(3));
835 return (ztest_opts
.zo_ashift
);
839 make_vdev_file(char *path
, char *aux
, char *pool
, size_t size
, uint64_t ashift
)
845 pathbuf
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
848 ashift
= ztest_get_ashift();
854 vdev
= ztest_shared
->zs_vdev_aux
;
855 (void) snprintf(path
, MAXPATHLEN
,
856 ztest_aux_template
, ztest_opts
.zo_dir
,
857 pool
== NULL
? ztest_opts
.zo_pool
: pool
,
860 vdev
= ztest_shared
->zs_vdev_next_leaf
++;
861 (void) snprintf(path
, MAXPATHLEN
,
862 ztest_dev_template
, ztest_opts
.zo_dir
,
863 pool
== NULL
? ztest_opts
.zo_pool
: pool
, vdev
);
868 int fd
= open(path
, O_RDWR
| O_CREAT
| O_TRUNC
, 0666);
870 fatal(1, "can't open %s", path
);
871 if (ftruncate(fd
, size
) != 0)
872 fatal(1, "can't ftruncate %s", path
);
876 VERIFY(nvlist_alloc(&file
, NV_UNIQUE_NAME
, 0) == 0);
877 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_FILE
) == 0);
878 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_PATH
, path
) == 0);
879 VERIFY(nvlist_add_uint64(file
, ZPOOL_CONFIG_ASHIFT
, ashift
) == 0);
880 umem_free(pathbuf
, MAXPATHLEN
);
886 make_vdev_raidz(char *path
, char *aux
, char *pool
, size_t size
,
887 uint64_t ashift
, int r
)
889 nvlist_t
*raidz
, **child
;
893 return (make_vdev_file(path
, aux
, pool
, size
, ashift
));
894 child
= umem_alloc(r
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
896 for (c
= 0; c
< r
; c
++)
897 child
[c
] = make_vdev_file(path
, aux
, pool
, size
, ashift
);
899 VERIFY(nvlist_alloc(&raidz
, NV_UNIQUE_NAME
, 0) == 0);
900 VERIFY(nvlist_add_string(raidz
, ZPOOL_CONFIG_TYPE
,
901 VDEV_TYPE_RAIDZ
) == 0);
902 VERIFY(nvlist_add_uint64(raidz
, ZPOOL_CONFIG_NPARITY
,
903 ztest_opts
.zo_raidz_parity
) == 0);
904 VERIFY(nvlist_add_nvlist_array(raidz
, ZPOOL_CONFIG_CHILDREN
,
907 for (c
= 0; c
< r
; c
++)
908 nvlist_free(child
[c
]);
910 umem_free(child
, r
* sizeof (nvlist_t
*));
916 make_vdev_mirror(char *path
, char *aux
, char *pool
, size_t size
,
917 uint64_t ashift
, int r
, int m
)
919 nvlist_t
*mirror
, **child
;
923 return (make_vdev_raidz(path
, aux
, pool
, size
, ashift
, r
));
925 child
= umem_alloc(m
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
927 for (c
= 0; c
< m
; c
++)
928 child
[c
] = make_vdev_raidz(path
, aux
, pool
, size
, ashift
, r
);
930 VERIFY(nvlist_alloc(&mirror
, NV_UNIQUE_NAME
, 0) == 0);
931 VERIFY(nvlist_add_string(mirror
, ZPOOL_CONFIG_TYPE
,
932 VDEV_TYPE_MIRROR
) == 0);
933 VERIFY(nvlist_add_nvlist_array(mirror
, ZPOOL_CONFIG_CHILDREN
,
936 for (c
= 0; c
< m
; c
++)
937 nvlist_free(child
[c
]);
939 umem_free(child
, m
* sizeof (nvlist_t
*));
945 make_vdev_root(char *path
, char *aux
, char *pool
, size_t size
, uint64_t ashift
,
946 int log
, int r
, int m
, int t
)
948 nvlist_t
*root
, **child
;
953 child
= umem_alloc(t
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
955 for (c
= 0; c
< t
; c
++) {
956 child
[c
] = make_vdev_mirror(path
, aux
, pool
, size
, ashift
,
958 VERIFY(nvlist_add_uint64(child
[c
], ZPOOL_CONFIG_IS_LOG
,
962 VERIFY(nvlist_alloc(&root
, NV_UNIQUE_NAME
, 0) == 0);
963 VERIFY(nvlist_add_string(root
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_ROOT
) == 0);
964 VERIFY(nvlist_add_nvlist_array(root
, aux
? aux
: ZPOOL_CONFIG_CHILDREN
,
967 for (c
= 0; c
< t
; c
++)
968 nvlist_free(child
[c
]);
970 umem_free(child
, t
* sizeof (nvlist_t
*));
976 * Find a random spa version. Returns back a random spa version in the
977 * range [initial_version, SPA_VERSION_FEATURES].
980 ztest_random_spa_version(uint64_t initial_version
)
982 uint64_t version
= initial_version
;
984 if (version
<= SPA_VERSION_BEFORE_FEATURES
) {
986 ztest_random(SPA_VERSION_BEFORE_FEATURES
- version
+ 1);
989 if (version
> SPA_VERSION_BEFORE_FEATURES
)
990 version
= SPA_VERSION_FEATURES
;
992 ASSERT(SPA_VERSION_IS_SUPPORTED(version
));
997 ztest_random_blocksize(void)
999 return (1 << (SPA_MINBLOCKSHIFT
+
1000 ztest_random(SPA_MAXBLOCKSHIFT
- SPA_MINBLOCKSHIFT
+ 1)));
1004 ztest_random_ibshift(void)
1006 return (DN_MIN_INDBLKSHIFT
+
1007 ztest_random(DN_MAX_INDBLKSHIFT
- DN_MIN_INDBLKSHIFT
+ 1));
1011 ztest_random_vdev_top(spa_t
*spa
, boolean_t log_ok
)
1014 vdev_t
*rvd
= spa
->spa_root_vdev
;
1017 ASSERT(spa_config_held(spa
, SCL_ALL
, RW_READER
) != 0);
1020 top
= ztest_random(rvd
->vdev_children
);
1021 tvd
= rvd
->vdev_child
[top
];
1022 } while (tvd
->vdev_ishole
|| (tvd
->vdev_islog
&& !log_ok
) ||
1023 tvd
->vdev_mg
== NULL
|| tvd
->vdev_mg
->mg_class
== NULL
);
1029 ztest_random_dsl_prop(zfs_prop_t prop
)
1034 value
= zfs_prop_random_value(prop
, ztest_random(-1ULL));
1035 } while (prop
== ZFS_PROP_CHECKSUM
&& value
== ZIO_CHECKSUM_OFF
);
1041 ztest_dsl_prop_set_uint64(char *osname
, zfs_prop_t prop
, uint64_t value
,
1044 const char *propname
= zfs_prop_to_name(prop
);
1045 const char *valname
;
1050 error
= dsl_prop_set_int(osname
, propname
,
1051 (inherit
? ZPROP_SRC_NONE
: ZPROP_SRC_LOCAL
), value
);
1053 if (error
== ENOSPC
) {
1054 ztest_record_enospc(FTAG
);
1059 setpoint
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
1060 VERIFY0(dsl_prop_get_integer(osname
, propname
, &curval
, setpoint
));
1062 if (ztest_opts
.zo_verbose
>= 6) {
1063 VERIFY(zfs_prop_index_to_string(prop
, curval
, &valname
) == 0);
1064 (void) printf("%s %s = %s at '%s'\n",
1065 osname
, propname
, valname
, setpoint
);
1067 umem_free(setpoint
, MAXPATHLEN
);
1073 ztest_spa_prop_set_uint64(zpool_prop_t prop
, uint64_t value
)
1075 spa_t
*spa
= ztest_spa
;
1076 nvlist_t
*props
= NULL
;
1079 VERIFY(nvlist_alloc(&props
, NV_UNIQUE_NAME
, 0) == 0);
1080 VERIFY(nvlist_add_uint64(props
, zpool_prop_to_name(prop
), value
) == 0);
1082 error
= spa_prop_set(spa
, props
);
1086 if (error
== ENOSPC
) {
1087 ztest_record_enospc(FTAG
);
1096 ztest_rll_init(rll_t
*rll
)
1098 rll
->rll_writer
= NULL
;
1099 rll
->rll_readers
= 0;
1100 mutex_init(&rll
->rll_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
1101 cv_init(&rll
->rll_cv
, NULL
, CV_DEFAULT
, NULL
);
1105 ztest_rll_destroy(rll_t
*rll
)
1107 ASSERT(rll
->rll_writer
== NULL
);
1108 ASSERT(rll
->rll_readers
== 0);
1109 mutex_destroy(&rll
->rll_lock
);
1110 cv_destroy(&rll
->rll_cv
);
1114 ztest_rll_lock(rll_t
*rll
, rl_type_t type
)
1116 mutex_enter(&rll
->rll_lock
);
1118 if (type
== RL_READER
) {
1119 while (rll
->rll_writer
!= NULL
)
1120 (void) cv_wait(&rll
->rll_cv
, &rll
->rll_lock
);
1123 while (rll
->rll_writer
!= NULL
|| rll
->rll_readers
)
1124 (void) cv_wait(&rll
->rll_cv
, &rll
->rll_lock
);
1125 rll
->rll_writer
= curthread
;
1128 mutex_exit(&rll
->rll_lock
);
1132 ztest_rll_unlock(rll_t
*rll
)
1134 mutex_enter(&rll
->rll_lock
);
1136 if (rll
->rll_writer
) {
1137 ASSERT(rll
->rll_readers
== 0);
1138 rll
->rll_writer
= NULL
;
1140 ASSERT(rll
->rll_readers
!= 0);
1141 ASSERT(rll
->rll_writer
== NULL
);
1145 if (rll
->rll_writer
== NULL
&& rll
->rll_readers
== 0)
1146 cv_broadcast(&rll
->rll_cv
);
1148 mutex_exit(&rll
->rll_lock
);
1152 ztest_object_lock(ztest_ds_t
*zd
, uint64_t object
, rl_type_t type
)
1154 rll_t
*rll
= &zd
->zd_object_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1156 ztest_rll_lock(rll
, type
);
1160 ztest_object_unlock(ztest_ds_t
*zd
, uint64_t object
)
1162 rll_t
*rll
= &zd
->zd_object_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1164 ztest_rll_unlock(rll
);
1168 ztest_range_lock(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
,
1169 uint64_t size
, rl_type_t type
)
1171 uint64_t hash
= object
^ (offset
% (ZTEST_RANGE_LOCKS
+ 1));
1172 rll_t
*rll
= &zd
->zd_range_lock
[hash
& (ZTEST_RANGE_LOCKS
- 1)];
1175 rl
= umem_alloc(sizeof (*rl
), UMEM_NOFAIL
);
1176 rl
->rl_object
= object
;
1177 rl
->rl_offset
= offset
;
1181 ztest_rll_lock(rll
, type
);
1187 ztest_range_unlock(rl_t
*rl
)
1189 rll_t
*rll
= rl
->rl_lock
;
1191 ztest_rll_unlock(rll
);
1193 umem_free(rl
, sizeof (*rl
));
1197 ztest_zd_init(ztest_ds_t
*zd
, ztest_shared_ds_t
*szd
, objset_t
*os
)
1200 zd
->zd_zilog
= dmu_objset_zil(os
);
1201 zd
->zd_shared
= szd
;
1202 dmu_objset_name(os
, zd
->zd_name
);
1205 if (zd
->zd_shared
!= NULL
)
1206 zd
->zd_shared
->zd_seq
= 0;
1208 rw_init(&zd
->zd_zilog_lock
, NULL
, RW_DEFAULT
, NULL
);
1209 mutex_init(&zd
->zd_dirobj_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
1211 for (l
= 0; l
< ZTEST_OBJECT_LOCKS
; l
++)
1212 ztest_rll_init(&zd
->zd_object_lock
[l
]);
1214 for (l
= 0; l
< ZTEST_RANGE_LOCKS
; l
++)
1215 ztest_rll_init(&zd
->zd_range_lock
[l
]);
1219 ztest_zd_fini(ztest_ds_t
*zd
)
1223 mutex_destroy(&zd
->zd_dirobj_lock
);
1224 rw_destroy(&zd
->zd_zilog_lock
);
1226 for (l
= 0; l
< ZTEST_OBJECT_LOCKS
; l
++)
1227 ztest_rll_destroy(&zd
->zd_object_lock
[l
]);
1229 for (l
= 0; l
< ZTEST_RANGE_LOCKS
; l
++)
1230 ztest_rll_destroy(&zd
->zd_range_lock
[l
]);
1233 #define TXG_MIGHTWAIT (ztest_random(10) == 0 ? TXG_NOWAIT : TXG_WAIT)
1236 ztest_tx_assign(dmu_tx_t
*tx
, uint64_t txg_how
, const char *tag
)
1242 * Attempt to assign tx to some transaction group.
1244 error
= dmu_tx_assign(tx
, txg_how
);
1246 if (error
== ERESTART
) {
1247 ASSERT(txg_how
== TXG_NOWAIT
);
1250 ASSERT3U(error
, ==, ENOSPC
);
1251 ztest_record_enospc(tag
);
1256 txg
= dmu_tx_get_txg(tx
);
1262 ztest_pattern_set(void *buf
, uint64_t size
, uint64_t value
)
1265 uint64_t *ip_end
= (uint64_t *)((uintptr_t)buf
+ (uintptr_t)size
);
1273 ztest_pattern_match(void *buf
, uint64_t size
, uint64_t value
)
1276 uint64_t *ip_end
= (uint64_t *)((uintptr_t)buf
+ (uintptr_t)size
);
1280 diff
|= (value
- *ip
++);
1287 ztest_bt_generate(ztest_block_tag_t
*bt
, objset_t
*os
, uint64_t object
,
1288 uint64_t offset
, uint64_t gen
, uint64_t txg
, uint64_t crtxg
)
1290 bt
->bt_magic
= BT_MAGIC
;
1291 bt
->bt_objset
= dmu_objset_id(os
);
1292 bt
->bt_object
= object
;
1293 bt
->bt_offset
= offset
;
1296 bt
->bt_crtxg
= crtxg
;
1300 ztest_bt_verify(ztest_block_tag_t
*bt
, objset_t
*os
, uint64_t object
,
1301 uint64_t offset
, uint64_t gen
, uint64_t txg
, uint64_t crtxg
)
1303 ASSERT(bt
->bt_magic
== BT_MAGIC
);
1304 ASSERT(bt
->bt_objset
== dmu_objset_id(os
));
1305 ASSERT(bt
->bt_object
== object
);
1306 ASSERT(bt
->bt_offset
== offset
);
1307 ASSERT(bt
->bt_gen
<= gen
);
1308 ASSERT(bt
->bt_txg
<= txg
);
1309 ASSERT(bt
->bt_crtxg
== crtxg
);
1312 static ztest_block_tag_t
*
1313 ztest_bt_bonus(dmu_buf_t
*db
)
1315 dmu_object_info_t doi
;
1316 ztest_block_tag_t
*bt
;
1318 dmu_object_info_from_db(db
, &doi
);
1319 ASSERT3U(doi
.doi_bonus_size
, <=, db
->db_size
);
1320 ASSERT3U(doi
.doi_bonus_size
, >=, sizeof (*bt
));
1321 bt
= (void *)((char *)db
->db_data
+ doi
.doi_bonus_size
- sizeof (*bt
));
1330 #define lrz_type lr_mode
1331 #define lrz_blocksize lr_uid
1332 #define lrz_ibshift lr_gid
1333 #define lrz_bonustype lr_rdev
1334 #define lrz_bonuslen lr_crtime[1]
1337 ztest_log_create(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_create_t
*lr
)
1339 char *name
= (void *)(lr
+ 1); /* name follows lr */
1340 size_t namesize
= strlen(name
) + 1;
1343 if (zil_replaying(zd
->zd_zilog
, tx
))
1346 itx
= zil_itx_create(TX_CREATE
, sizeof (*lr
) + namesize
);
1347 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1348 sizeof (*lr
) + namesize
- sizeof (lr_t
));
1350 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1354 ztest_log_remove(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_remove_t
*lr
, uint64_t object
)
1356 char *name
= (void *)(lr
+ 1); /* name follows lr */
1357 size_t namesize
= strlen(name
) + 1;
1360 if (zil_replaying(zd
->zd_zilog
, tx
))
1363 itx
= zil_itx_create(TX_REMOVE
, sizeof (*lr
) + namesize
);
1364 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1365 sizeof (*lr
) + namesize
- sizeof (lr_t
));
1367 itx
->itx_oid
= object
;
1368 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1372 ztest_log_write(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_write_t
*lr
)
1375 itx_wr_state_t write_state
= ztest_random(WR_NUM_STATES
);
1377 if (zil_replaying(zd
->zd_zilog
, tx
))
1380 if (lr
->lr_length
> ZIL_MAX_LOG_DATA
)
1381 write_state
= WR_INDIRECT
;
1383 itx
= zil_itx_create(TX_WRITE
,
1384 sizeof (*lr
) + (write_state
== WR_COPIED
? lr
->lr_length
: 0));
1386 if (write_state
== WR_COPIED
&&
1387 dmu_read(zd
->zd_os
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
,
1388 ((lr_write_t
*)&itx
->itx_lr
) + 1, DMU_READ_NO_PREFETCH
) != 0) {
1389 zil_itx_destroy(itx
);
1390 itx
= zil_itx_create(TX_WRITE
, sizeof (*lr
));
1391 write_state
= WR_NEED_COPY
;
1393 itx
->itx_private
= zd
;
1394 itx
->itx_wr_state
= write_state
;
1395 itx
->itx_sync
= (ztest_random(8) == 0);
1396 itx
->itx_sod
+= (write_state
== WR_NEED_COPY
? lr
->lr_length
: 0);
1398 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1399 sizeof (*lr
) - sizeof (lr_t
));
1401 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1405 ztest_log_truncate(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_truncate_t
*lr
)
1409 if (zil_replaying(zd
->zd_zilog
, tx
))
1412 itx
= zil_itx_create(TX_TRUNCATE
, sizeof (*lr
));
1413 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1414 sizeof (*lr
) - sizeof (lr_t
));
1416 itx
->itx_sync
= B_FALSE
;
1417 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1421 ztest_log_setattr(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_setattr_t
*lr
)
1425 if (zil_replaying(zd
->zd_zilog
, tx
))
1428 itx
= zil_itx_create(TX_SETATTR
, sizeof (*lr
));
1429 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1430 sizeof (*lr
) - sizeof (lr_t
));
1432 itx
->itx_sync
= B_FALSE
;
1433 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1440 ztest_replay_create(ztest_ds_t
*zd
, lr_create_t
*lr
, boolean_t byteswap
)
1442 char *name
= (void *)(lr
+ 1); /* name follows lr */
1443 objset_t
*os
= zd
->zd_os
;
1444 ztest_block_tag_t
*bbt
;
1451 byteswap_uint64_array(lr
, sizeof (*lr
));
1453 ASSERT(lr
->lr_doid
== ZTEST_DIROBJ
);
1454 ASSERT(name
[0] != '\0');
1456 tx
= dmu_tx_create(os
);
1458 dmu_tx_hold_zap(tx
, lr
->lr_doid
, B_TRUE
, name
);
1460 if (lr
->lrz_type
== DMU_OT_ZAP_OTHER
) {
1461 dmu_tx_hold_zap(tx
, DMU_NEW_OBJECT
, B_TRUE
, NULL
);
1463 dmu_tx_hold_bonus(tx
, DMU_NEW_OBJECT
);
1466 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1470 ASSERT(dmu_objset_zil(os
)->zl_replay
== !!lr
->lr_foid
);
1472 if (lr
->lrz_type
== DMU_OT_ZAP_OTHER
) {
1473 if (lr
->lr_foid
== 0) {
1474 lr
->lr_foid
= zap_create(os
,
1475 lr
->lrz_type
, lr
->lrz_bonustype
,
1476 lr
->lrz_bonuslen
, tx
);
1478 error
= zap_create_claim(os
, lr
->lr_foid
,
1479 lr
->lrz_type
, lr
->lrz_bonustype
,
1480 lr
->lrz_bonuslen
, tx
);
1483 if (lr
->lr_foid
== 0) {
1484 lr
->lr_foid
= dmu_object_alloc(os
,
1485 lr
->lrz_type
, 0, lr
->lrz_bonustype
,
1486 lr
->lrz_bonuslen
, tx
);
1488 error
= dmu_object_claim(os
, lr
->lr_foid
,
1489 lr
->lrz_type
, 0, lr
->lrz_bonustype
,
1490 lr
->lrz_bonuslen
, tx
);
1495 ASSERT3U(error
, ==, EEXIST
);
1496 ASSERT(zd
->zd_zilog
->zl_replay
);
1501 ASSERT(lr
->lr_foid
!= 0);
1503 if (lr
->lrz_type
!= DMU_OT_ZAP_OTHER
)
1504 VERIFY3U(0, ==, dmu_object_set_blocksize(os
, lr
->lr_foid
,
1505 lr
->lrz_blocksize
, lr
->lrz_ibshift
, tx
));
1507 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1508 bbt
= ztest_bt_bonus(db
);
1509 dmu_buf_will_dirty(db
, tx
);
1510 ztest_bt_generate(bbt
, os
, lr
->lr_foid
, -1ULL, lr
->lr_gen
, txg
, txg
);
1511 dmu_buf_rele(db
, FTAG
);
1513 VERIFY3U(0, ==, zap_add(os
, lr
->lr_doid
, name
, sizeof (uint64_t), 1,
1516 (void) ztest_log_create(zd
, tx
, lr
);
1524 ztest_replay_remove(ztest_ds_t
*zd
, lr_remove_t
*lr
, boolean_t byteswap
)
1526 char *name
= (void *)(lr
+ 1); /* name follows lr */
1527 objset_t
*os
= zd
->zd_os
;
1528 dmu_object_info_t doi
;
1530 uint64_t object
, txg
;
1533 byteswap_uint64_array(lr
, sizeof (*lr
));
1535 ASSERT(lr
->lr_doid
== ZTEST_DIROBJ
);
1536 ASSERT(name
[0] != '\0');
1539 zap_lookup(os
, lr
->lr_doid
, name
, sizeof (object
), 1, &object
));
1540 ASSERT(object
!= 0);
1542 ztest_object_lock(zd
, object
, RL_WRITER
);
1544 VERIFY3U(0, ==, dmu_object_info(os
, object
, &doi
));
1546 tx
= dmu_tx_create(os
);
1548 dmu_tx_hold_zap(tx
, lr
->lr_doid
, B_FALSE
, name
);
1549 dmu_tx_hold_free(tx
, object
, 0, DMU_OBJECT_END
);
1551 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1553 ztest_object_unlock(zd
, object
);
1557 if (doi
.doi_type
== DMU_OT_ZAP_OTHER
) {
1558 VERIFY3U(0, ==, zap_destroy(os
, object
, tx
));
1560 VERIFY3U(0, ==, dmu_object_free(os
, object
, tx
));
1563 VERIFY3U(0, ==, zap_remove(os
, lr
->lr_doid
, name
, tx
));
1565 (void) ztest_log_remove(zd
, tx
, lr
, object
);
1569 ztest_object_unlock(zd
, object
);
1575 ztest_replay_write(ztest_ds_t
*zd
, lr_write_t
*lr
, boolean_t byteswap
)
1577 objset_t
*os
= zd
->zd_os
;
1578 void *data
= lr
+ 1; /* data follows lr */
1579 uint64_t offset
, length
;
1580 ztest_block_tag_t
*bt
= data
;
1581 ztest_block_tag_t
*bbt
;
1582 uint64_t gen
, txg
, lrtxg
, crtxg
;
1583 dmu_object_info_t doi
;
1586 arc_buf_t
*abuf
= NULL
;
1590 byteswap_uint64_array(lr
, sizeof (*lr
));
1592 offset
= lr
->lr_offset
;
1593 length
= lr
->lr_length
;
1595 /* If it's a dmu_sync() block, write the whole block */
1596 if (lr
->lr_common
.lrc_reclen
== sizeof (lr_write_t
)) {
1597 uint64_t blocksize
= BP_GET_LSIZE(&lr
->lr_blkptr
);
1598 if (length
< blocksize
) {
1599 offset
-= offset
% blocksize
;
1604 if (bt
->bt_magic
== BSWAP_64(BT_MAGIC
))
1605 byteswap_uint64_array(bt
, sizeof (*bt
));
1607 if (bt
->bt_magic
!= BT_MAGIC
)
1610 ztest_object_lock(zd
, lr
->lr_foid
, RL_READER
);
1611 rl
= ztest_range_lock(zd
, lr
->lr_foid
, offset
, length
, RL_WRITER
);
1613 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1615 dmu_object_info_from_db(db
, &doi
);
1617 bbt
= ztest_bt_bonus(db
);
1618 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1620 crtxg
= bbt
->bt_crtxg
;
1621 lrtxg
= lr
->lr_common
.lrc_txg
;
1623 tx
= dmu_tx_create(os
);
1625 dmu_tx_hold_write(tx
, lr
->lr_foid
, offset
, length
);
1627 if (ztest_random(8) == 0 && length
== doi
.doi_data_block_size
&&
1628 P2PHASE(offset
, length
) == 0)
1629 abuf
= dmu_request_arcbuf(db
, length
);
1631 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1634 dmu_return_arcbuf(abuf
);
1635 dmu_buf_rele(db
, FTAG
);
1636 ztest_range_unlock(rl
);
1637 ztest_object_unlock(zd
, lr
->lr_foid
);
1643 * Usually, verify the old data before writing new data --
1644 * but not always, because we also want to verify correct
1645 * behavior when the data was not recently read into cache.
1647 ASSERT(offset
% doi
.doi_data_block_size
== 0);
1648 if (ztest_random(4) != 0) {
1649 int prefetch
= ztest_random(2) ?
1650 DMU_READ_PREFETCH
: DMU_READ_NO_PREFETCH
;
1651 ztest_block_tag_t rbt
;
1653 VERIFY(dmu_read(os
, lr
->lr_foid
, offset
,
1654 sizeof (rbt
), &rbt
, prefetch
) == 0);
1655 if (rbt
.bt_magic
== BT_MAGIC
) {
1656 ztest_bt_verify(&rbt
, os
, lr
->lr_foid
,
1657 offset
, gen
, txg
, crtxg
);
1662 * Writes can appear to be newer than the bonus buffer because
1663 * the ztest_get_data() callback does a dmu_read() of the
1664 * open-context data, which may be different than the data
1665 * as it was when the write was generated.
1667 if (zd
->zd_zilog
->zl_replay
) {
1668 ztest_bt_verify(bt
, os
, lr
->lr_foid
, offset
,
1669 MAX(gen
, bt
->bt_gen
), MAX(txg
, lrtxg
),
1674 * Set the bt's gen/txg to the bonus buffer's gen/txg
1675 * so that all of the usual ASSERTs will work.
1677 ztest_bt_generate(bt
, os
, lr
->lr_foid
, offset
, gen
, txg
, crtxg
);
1681 dmu_write(os
, lr
->lr_foid
, offset
, length
, data
, tx
);
1683 bcopy(data
, abuf
->b_data
, length
);
1684 dmu_assign_arcbuf(db
, offset
, abuf
, tx
);
1687 (void) ztest_log_write(zd
, tx
, lr
);
1689 dmu_buf_rele(db
, FTAG
);
1693 ztest_range_unlock(rl
);
1694 ztest_object_unlock(zd
, lr
->lr_foid
);
1700 ztest_replay_truncate(ztest_ds_t
*zd
, lr_truncate_t
*lr
, boolean_t byteswap
)
1702 objset_t
*os
= zd
->zd_os
;
1708 byteswap_uint64_array(lr
, sizeof (*lr
));
1710 ztest_object_lock(zd
, lr
->lr_foid
, RL_READER
);
1711 rl
= ztest_range_lock(zd
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
,
1714 tx
= dmu_tx_create(os
);
1716 dmu_tx_hold_free(tx
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
);
1718 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1720 ztest_range_unlock(rl
);
1721 ztest_object_unlock(zd
, lr
->lr_foid
);
1725 VERIFY(dmu_free_range(os
, lr
->lr_foid
, lr
->lr_offset
,
1726 lr
->lr_length
, tx
) == 0);
1728 (void) ztest_log_truncate(zd
, tx
, lr
);
1732 ztest_range_unlock(rl
);
1733 ztest_object_unlock(zd
, lr
->lr_foid
);
1739 ztest_replay_setattr(ztest_ds_t
*zd
, lr_setattr_t
*lr
, boolean_t byteswap
)
1741 objset_t
*os
= zd
->zd_os
;
1744 ztest_block_tag_t
*bbt
;
1745 uint64_t txg
, lrtxg
, crtxg
;
1748 byteswap_uint64_array(lr
, sizeof (*lr
));
1750 ztest_object_lock(zd
, lr
->lr_foid
, RL_WRITER
);
1752 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1754 tx
= dmu_tx_create(os
);
1755 dmu_tx_hold_bonus(tx
, lr
->lr_foid
);
1757 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1759 dmu_buf_rele(db
, FTAG
);
1760 ztest_object_unlock(zd
, lr
->lr_foid
);
1764 bbt
= ztest_bt_bonus(db
);
1765 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1766 crtxg
= bbt
->bt_crtxg
;
1767 lrtxg
= lr
->lr_common
.lrc_txg
;
1769 if (zd
->zd_zilog
->zl_replay
) {
1770 ASSERT(lr
->lr_size
!= 0);
1771 ASSERT(lr
->lr_mode
!= 0);
1775 * Randomly change the size and increment the generation.
1777 lr
->lr_size
= (ztest_random(db
->db_size
/ sizeof (*bbt
)) + 1) *
1779 lr
->lr_mode
= bbt
->bt_gen
+ 1;
1784 * Verify that the current bonus buffer is not newer than our txg.
1786 ztest_bt_verify(bbt
, os
, lr
->lr_foid
, -1ULL, lr
->lr_mode
,
1787 MAX(txg
, lrtxg
), crtxg
);
1789 dmu_buf_will_dirty(db
, tx
);
1791 ASSERT3U(lr
->lr_size
, >=, sizeof (*bbt
));
1792 ASSERT3U(lr
->lr_size
, <=, db
->db_size
);
1793 VERIFY0(dmu_set_bonus(db
, lr
->lr_size
, tx
));
1794 bbt
= ztest_bt_bonus(db
);
1796 ztest_bt_generate(bbt
, os
, lr
->lr_foid
, -1ULL, lr
->lr_mode
, txg
, crtxg
);
1798 dmu_buf_rele(db
, FTAG
);
1800 (void) ztest_log_setattr(zd
, tx
, lr
);
1804 ztest_object_unlock(zd
, lr
->lr_foid
);
1809 zil_replay_func_t ztest_replay_vector
[TX_MAX_TYPE
] = {
1810 NULL
, /* 0 no such transaction type */
1811 (zil_replay_func_t
)ztest_replay_create
, /* TX_CREATE */
1812 NULL
, /* TX_MKDIR */
1813 NULL
, /* TX_MKXATTR */
1814 NULL
, /* TX_SYMLINK */
1815 (zil_replay_func_t
)ztest_replay_remove
, /* TX_REMOVE */
1816 NULL
, /* TX_RMDIR */
1818 NULL
, /* TX_RENAME */
1819 (zil_replay_func_t
)ztest_replay_write
, /* TX_WRITE */
1820 (zil_replay_func_t
)ztest_replay_truncate
, /* TX_TRUNCATE */
1821 (zil_replay_func_t
)ztest_replay_setattr
, /* TX_SETATTR */
1823 NULL
, /* TX_CREATE_ACL */
1824 NULL
, /* TX_CREATE_ATTR */
1825 NULL
, /* TX_CREATE_ACL_ATTR */
1826 NULL
, /* TX_MKDIR_ACL */
1827 NULL
, /* TX_MKDIR_ATTR */
1828 NULL
, /* TX_MKDIR_ACL_ATTR */
1829 NULL
, /* TX_WRITE2 */
1833 * ZIL get_data callbacks
1837 ztest_get_done(zgd_t
*zgd
, int error
)
1839 ztest_ds_t
*zd
= zgd
->zgd_private
;
1840 uint64_t object
= zgd
->zgd_rl
->rl_object
;
1843 dmu_buf_rele(zgd
->zgd_db
, zgd
);
1845 ztest_range_unlock(zgd
->zgd_rl
);
1846 ztest_object_unlock(zd
, object
);
1848 if (error
== 0 && zgd
->zgd_bp
)
1849 zil_add_block(zgd
->zgd_zilog
, zgd
->zgd_bp
);
1851 umem_free(zgd
, sizeof (*zgd
));
1855 ztest_get_data(void *arg
, lr_write_t
*lr
, char *buf
, zio_t
*zio
)
1857 ztest_ds_t
*zd
= arg
;
1858 objset_t
*os
= zd
->zd_os
;
1859 uint64_t object
= lr
->lr_foid
;
1860 uint64_t offset
= lr
->lr_offset
;
1861 uint64_t size
= lr
->lr_length
;
1862 blkptr_t
*bp
= &lr
->lr_blkptr
;
1863 uint64_t txg
= lr
->lr_common
.lrc_txg
;
1865 dmu_object_info_t doi
;
1870 ztest_object_lock(zd
, object
, RL_READER
);
1871 error
= dmu_bonus_hold(os
, object
, FTAG
, &db
);
1873 ztest_object_unlock(zd
, object
);
1877 crtxg
= ztest_bt_bonus(db
)->bt_crtxg
;
1879 if (crtxg
== 0 || crtxg
> txg
) {
1880 dmu_buf_rele(db
, FTAG
);
1881 ztest_object_unlock(zd
, object
);
1885 dmu_object_info_from_db(db
, &doi
);
1886 dmu_buf_rele(db
, FTAG
);
1889 zgd
= umem_zalloc(sizeof (*zgd
), UMEM_NOFAIL
);
1890 zgd
->zgd_zilog
= zd
->zd_zilog
;
1891 zgd
->zgd_private
= zd
;
1893 if (buf
!= NULL
) { /* immediate write */
1894 zgd
->zgd_rl
= ztest_range_lock(zd
, object
, offset
, size
,
1897 error
= dmu_read(os
, object
, offset
, size
, buf
,
1898 DMU_READ_NO_PREFETCH
);
1901 size
= doi
.doi_data_block_size
;
1903 offset
= P2ALIGN(offset
, size
);
1905 ASSERT(offset
< size
);
1909 zgd
->zgd_rl
= ztest_range_lock(zd
, object
, offset
, size
,
1912 error
= dmu_buf_hold(os
, object
, offset
, zgd
, &db
,
1913 DMU_READ_NO_PREFETCH
);
1916 blkptr_t
*obp
= dmu_buf_get_blkptr(db
);
1918 ASSERT(BP_IS_HOLE(bp
));
1925 ASSERT(db
->db_offset
== offset
);
1926 ASSERT(db
->db_size
== size
);
1928 error
= dmu_sync(zio
, lr
->lr_common
.lrc_txg
,
1929 ztest_get_done
, zgd
);
1936 ztest_get_done(zgd
, error
);
1942 ztest_lr_alloc(size_t lrsize
, char *name
)
1945 size_t namesize
= name
? strlen(name
) + 1 : 0;
1947 lr
= umem_zalloc(lrsize
+ namesize
, UMEM_NOFAIL
);
1950 bcopy(name
, lr
+ lrsize
, namesize
);
1956 ztest_lr_free(void *lr
, size_t lrsize
, char *name
)
1958 size_t namesize
= name
? strlen(name
) + 1 : 0;
1960 umem_free(lr
, lrsize
+ namesize
);
1964 * Lookup a bunch of objects. Returns the number of objects not found.
1967 ztest_lookup(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
1973 ASSERT(mutex_held(&zd
->zd_dirobj_lock
));
1975 for (i
= 0; i
< count
; i
++, od
++) {
1977 error
= zap_lookup(zd
->zd_os
, od
->od_dir
, od
->od_name
,
1978 sizeof (uint64_t), 1, &od
->od_object
);
1980 ASSERT(error
== ENOENT
);
1981 ASSERT(od
->od_object
== 0);
1985 ztest_block_tag_t
*bbt
;
1986 dmu_object_info_t doi
;
1988 ASSERT(od
->od_object
!= 0);
1989 ASSERT(missing
== 0); /* there should be no gaps */
1991 ztest_object_lock(zd
, od
->od_object
, RL_READER
);
1992 VERIFY3U(0, ==, dmu_bonus_hold(zd
->zd_os
,
1993 od
->od_object
, FTAG
, &db
));
1994 dmu_object_info_from_db(db
, &doi
);
1995 bbt
= ztest_bt_bonus(db
);
1996 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1997 od
->od_type
= doi
.doi_type
;
1998 od
->od_blocksize
= doi
.doi_data_block_size
;
1999 od
->od_gen
= bbt
->bt_gen
;
2000 dmu_buf_rele(db
, FTAG
);
2001 ztest_object_unlock(zd
, od
->od_object
);
2009 ztest_create(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
2014 ASSERT(mutex_held(&zd
->zd_dirobj_lock
));
2016 for (i
= 0; i
< count
; i
++, od
++) {
2023 lr_create_t
*lr
= ztest_lr_alloc(sizeof (*lr
), od
->od_name
);
2025 lr
->lr_doid
= od
->od_dir
;
2026 lr
->lr_foid
= 0; /* 0 to allocate, > 0 to claim */
2027 lr
->lrz_type
= od
->od_crtype
;
2028 lr
->lrz_blocksize
= od
->od_crblocksize
;
2029 lr
->lrz_ibshift
= ztest_random_ibshift();
2030 lr
->lrz_bonustype
= DMU_OT_UINT64_OTHER
;
2031 lr
->lrz_bonuslen
= dmu_bonus_max();
2032 lr
->lr_gen
= od
->od_crgen
;
2033 lr
->lr_crtime
[0] = time(NULL
);
2035 if (ztest_replay_create(zd
, lr
, B_FALSE
) != 0) {
2036 ASSERT(missing
== 0);
2040 od
->od_object
= lr
->lr_foid
;
2041 od
->od_type
= od
->od_crtype
;
2042 od
->od_blocksize
= od
->od_crblocksize
;
2043 od
->od_gen
= od
->od_crgen
;
2044 ASSERT(od
->od_object
!= 0);
2047 ztest_lr_free(lr
, sizeof (*lr
), od
->od_name
);
2054 ztest_remove(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
2060 ASSERT(mutex_held(&zd
->zd_dirobj_lock
));
2064 for (i
= count
- 1; i
>= 0; i
--, od
--) {
2071 * No object was found.
2073 if (od
->od_object
== 0)
2076 lr_remove_t
*lr
= ztest_lr_alloc(sizeof (*lr
), od
->od_name
);
2078 lr
->lr_doid
= od
->od_dir
;
2080 if ((error
= ztest_replay_remove(zd
, lr
, B_FALSE
)) != 0) {
2081 ASSERT3U(error
, ==, ENOSPC
);
2086 ztest_lr_free(lr
, sizeof (*lr
), od
->od_name
);
2093 ztest_write(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
,
2099 lr
= ztest_lr_alloc(sizeof (*lr
) + size
, NULL
);
2101 lr
->lr_foid
= object
;
2102 lr
->lr_offset
= offset
;
2103 lr
->lr_length
= size
;
2105 BP_ZERO(&lr
->lr_blkptr
);
2107 bcopy(data
, lr
+ 1, size
);
2109 error
= ztest_replay_write(zd
, lr
, B_FALSE
);
2111 ztest_lr_free(lr
, sizeof (*lr
) + size
, NULL
);
2117 ztest_truncate(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
)
2122 lr
= ztest_lr_alloc(sizeof (*lr
), NULL
);
2124 lr
->lr_foid
= object
;
2125 lr
->lr_offset
= offset
;
2126 lr
->lr_length
= size
;
2128 error
= ztest_replay_truncate(zd
, lr
, B_FALSE
);
2130 ztest_lr_free(lr
, sizeof (*lr
), NULL
);
2136 ztest_setattr(ztest_ds_t
*zd
, uint64_t object
)
2141 lr
= ztest_lr_alloc(sizeof (*lr
), NULL
);
2143 lr
->lr_foid
= object
;
2147 error
= ztest_replay_setattr(zd
, lr
, B_FALSE
);
2149 ztest_lr_free(lr
, sizeof (*lr
), NULL
);
2155 ztest_prealloc(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
)
2157 objset_t
*os
= zd
->zd_os
;
2162 txg_wait_synced(dmu_objset_pool(os
), 0);
2164 ztest_object_lock(zd
, object
, RL_READER
);
2165 rl
= ztest_range_lock(zd
, object
, offset
, size
, RL_WRITER
);
2167 tx
= dmu_tx_create(os
);
2169 dmu_tx_hold_write(tx
, object
, offset
, size
);
2171 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
2174 dmu_prealloc(os
, object
, offset
, size
, tx
);
2176 txg_wait_synced(dmu_objset_pool(os
), txg
);
2178 (void) dmu_free_long_range(os
, object
, offset
, size
);
2181 ztest_range_unlock(rl
);
2182 ztest_object_unlock(zd
, object
);
2186 ztest_io(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
)
2189 ztest_block_tag_t wbt
;
2190 dmu_object_info_t doi
;
2191 enum ztest_io_type io_type
;
2195 VERIFY(dmu_object_info(zd
->zd_os
, object
, &doi
) == 0);
2196 blocksize
= doi
.doi_data_block_size
;
2197 data
= umem_alloc(blocksize
, UMEM_NOFAIL
);
2200 * Pick an i/o type at random, biased toward writing block tags.
2202 io_type
= ztest_random(ZTEST_IO_TYPES
);
2203 if (ztest_random(2) == 0)
2204 io_type
= ZTEST_IO_WRITE_TAG
;
2206 (void) rw_enter(&zd
->zd_zilog_lock
, RW_READER
);
2210 case ZTEST_IO_WRITE_TAG
:
2211 ztest_bt_generate(&wbt
, zd
->zd_os
, object
, offset
, 0, 0, 0);
2212 (void) ztest_write(zd
, object
, offset
, sizeof (wbt
), &wbt
);
2215 case ZTEST_IO_WRITE_PATTERN
:
2216 (void) memset(data
, 'a' + (object
+ offset
) % 5, blocksize
);
2217 if (ztest_random(2) == 0) {
2219 * Induce fletcher2 collisions to ensure that
2220 * zio_ddt_collision() detects and resolves them
2221 * when using fletcher2-verify for deduplication.
2223 ((uint64_t *)data
)[0] ^= 1ULL << 63;
2224 ((uint64_t *)data
)[4] ^= 1ULL << 63;
2226 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2229 case ZTEST_IO_WRITE_ZEROES
:
2230 bzero(data
, blocksize
);
2231 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2234 case ZTEST_IO_TRUNCATE
:
2235 (void) ztest_truncate(zd
, object
, offset
, blocksize
);
2238 case ZTEST_IO_SETATTR
:
2239 (void) ztest_setattr(zd
, object
);
2244 case ZTEST_IO_REWRITE
:
2245 (void) rw_enter(&ztest_name_lock
, RW_READER
);
2246 err
= ztest_dsl_prop_set_uint64(zd
->zd_name
,
2247 ZFS_PROP_CHECKSUM
, spa_dedup_checksum(ztest_spa
),
2249 VERIFY(err
== 0 || err
== ENOSPC
);
2250 err
= ztest_dsl_prop_set_uint64(zd
->zd_name
,
2251 ZFS_PROP_COMPRESSION
,
2252 ztest_random_dsl_prop(ZFS_PROP_COMPRESSION
),
2254 VERIFY(err
== 0 || err
== ENOSPC
);
2255 (void) rw_exit(&ztest_name_lock
);
2257 VERIFY0(dmu_read(zd
->zd_os
, object
, offset
, blocksize
, data
,
2258 DMU_READ_NO_PREFETCH
));
2260 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2264 (void) rw_exit(&zd
->zd_zilog_lock
);
2266 umem_free(data
, blocksize
);
2270 * Initialize an object description template.
2273 ztest_od_init(ztest_od_t
*od
, uint64_t id
, char *tag
, uint64_t index
,
2274 dmu_object_type_t type
, uint64_t blocksize
, uint64_t gen
)
2276 od
->od_dir
= ZTEST_DIROBJ
;
2279 od
->od_crtype
= type
;
2280 od
->od_crblocksize
= blocksize
? blocksize
: ztest_random_blocksize();
2283 od
->od_type
= DMU_OT_NONE
;
2284 od
->od_blocksize
= 0;
2287 (void) snprintf(od
->od_name
, sizeof (od
->od_name
), "%s(%lld)[%llu]",
2288 tag
, (longlong_t
)id
, (u_longlong_t
)index
);
2292 * Lookup or create the objects for a test using the od template.
2293 * If the objects do not all exist, or if 'remove' is specified,
2294 * remove any existing objects and create new ones. Otherwise,
2295 * use the existing objects.
2298 ztest_object_init(ztest_ds_t
*zd
, ztest_od_t
*od
, size_t size
, boolean_t remove
)
2300 int count
= size
/ sizeof (*od
);
2303 mutex_enter(&zd
->zd_dirobj_lock
);
2304 if ((ztest_lookup(zd
, od
, count
) != 0 || remove
) &&
2305 (ztest_remove(zd
, od
, count
) != 0 ||
2306 ztest_create(zd
, od
, count
) != 0))
2309 mutex_exit(&zd
->zd_dirobj_lock
);
2316 ztest_zil_commit(ztest_ds_t
*zd
, uint64_t id
)
2318 zilog_t
*zilog
= zd
->zd_zilog
;
2320 (void) rw_enter(&zd
->zd_zilog_lock
, RW_READER
);
2322 zil_commit(zilog
, ztest_random(ZTEST_OBJECTS
));
2325 * Remember the committed values in zd, which is in parent/child
2326 * shared memory. If we die, the next iteration of ztest_run()
2327 * will verify that the log really does contain this record.
2329 mutex_enter(&zilog
->zl_lock
);
2330 ASSERT(zd
->zd_shared
!= NULL
);
2331 ASSERT3U(zd
->zd_shared
->zd_seq
, <=, zilog
->zl_commit_lr_seq
);
2332 zd
->zd_shared
->zd_seq
= zilog
->zl_commit_lr_seq
;
2333 mutex_exit(&zilog
->zl_lock
);
2335 (void) rw_exit(&zd
->zd_zilog_lock
);
2339 * This function is designed to simulate the operations that occur during a
2340 * mount/unmount operation. We hold the dataset across these operations in an
2341 * attempt to expose any implicit assumptions about ZIL management.
2345 ztest_zil_remount(ztest_ds_t
*zd
, uint64_t id
)
2347 objset_t
*os
= zd
->zd_os
;
2350 * We grab the zd_dirobj_lock to ensure that no other thread is
2351 * updating the zil (i.e. adding in-memory log records) and the
2352 * zd_zilog_lock to block any I/O.
2354 mutex_enter(&zd
->zd_dirobj_lock
);
2355 (void) rw_enter(&zd
->zd_zilog_lock
, RW_WRITER
);
2357 /* zfs_sb_teardown() */
2358 zil_close(zd
->zd_zilog
);
2360 /* zfsvfs_setup() */
2361 VERIFY(zil_open(os
, ztest_get_data
) == zd
->zd_zilog
);
2362 zil_replay(os
, zd
, ztest_replay_vector
);
2364 (void) rw_exit(&zd
->zd_zilog_lock
);
2365 mutex_exit(&zd
->zd_dirobj_lock
);
2369 * Verify that we can't destroy an active pool, create an existing pool,
2370 * or create a pool with a bad vdev spec.
2374 ztest_spa_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
2376 ztest_shared_opts_t
*zo
= &ztest_opts
;
2381 * Attempt to create using a bad file.
2383 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 0, 1);
2384 VERIFY3U(ENOENT
, ==,
2385 spa_create("ztest_bad_file", nvroot
, NULL
, NULL
));
2386 nvlist_free(nvroot
);
2389 * Attempt to create using a bad mirror.
2391 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 2, 1);
2392 VERIFY3U(ENOENT
, ==,
2393 spa_create("ztest_bad_mirror", nvroot
, NULL
, NULL
));
2394 nvlist_free(nvroot
);
2397 * Attempt to create an existing pool. It shouldn't matter
2398 * what's in the nvroot; we should fail with EEXIST.
2400 (void) rw_enter(&ztest_name_lock
, RW_READER
);
2401 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 0, 1);
2402 VERIFY3U(EEXIST
, ==, spa_create(zo
->zo_pool
, nvroot
, NULL
, NULL
));
2403 nvlist_free(nvroot
);
2404 VERIFY3U(0, ==, spa_open(zo
->zo_pool
, &spa
, FTAG
));
2405 VERIFY3U(EBUSY
, ==, spa_destroy(zo
->zo_pool
));
2406 spa_close(spa
, FTAG
);
2408 (void) rw_exit(&ztest_name_lock
);
2413 ztest_spa_upgrade(ztest_ds_t
*zd
, uint64_t id
)
2416 uint64_t initial_version
= SPA_VERSION_INITIAL
;
2417 uint64_t version
, newversion
;
2418 nvlist_t
*nvroot
, *props
;
2421 mutex_enter(&ztest_vdev_lock
);
2422 name
= kmem_asprintf("%s_upgrade", ztest_opts
.zo_pool
);
2425 * Clean up from previous runs.
2427 (void) spa_destroy(name
);
2429 nvroot
= make_vdev_root(NULL
, NULL
, name
, ztest_opts
.zo_vdev_size
, 0,
2430 0, ztest_opts
.zo_raidz
, ztest_opts
.zo_mirrors
, 1);
2433 * If we're configuring a RAIDZ device then make sure that the
2434 * the initial version is capable of supporting that feature.
2436 switch (ztest_opts
.zo_raidz_parity
) {
2439 initial_version
= SPA_VERSION_INITIAL
;
2442 initial_version
= SPA_VERSION_RAIDZ2
;
2445 initial_version
= SPA_VERSION_RAIDZ3
;
2450 * Create a pool with a spa version that can be upgraded. Pick
2451 * a value between initial_version and SPA_VERSION_BEFORE_FEATURES.
2454 version
= ztest_random_spa_version(initial_version
);
2455 } while (version
> SPA_VERSION_BEFORE_FEATURES
);
2457 props
= fnvlist_alloc();
2458 fnvlist_add_uint64(props
,
2459 zpool_prop_to_name(ZPOOL_PROP_VERSION
), version
);
2460 VERIFY3S(spa_create(name
, nvroot
, props
, NULL
), ==, 0);
2461 fnvlist_free(nvroot
);
2462 fnvlist_free(props
);
2464 VERIFY3S(spa_open(name
, &spa
, FTAG
), ==, 0);
2465 VERIFY3U(spa_version(spa
), ==, version
);
2466 newversion
= ztest_random_spa_version(version
+ 1);
2468 if (ztest_opts
.zo_verbose
>= 4) {
2469 (void) printf("upgrading spa version from %llu to %llu\n",
2470 (u_longlong_t
)version
, (u_longlong_t
)newversion
);
2473 spa_upgrade(spa
, newversion
);
2474 VERIFY3U(spa_version(spa
), >, version
);
2475 VERIFY3U(spa_version(spa
), ==, fnvlist_lookup_uint64(spa
->spa_config
,
2476 zpool_prop_to_name(ZPOOL_PROP_VERSION
)));
2477 spa_close(spa
, FTAG
);
2480 mutex_exit(&ztest_vdev_lock
);
2484 vdev_lookup_by_path(vdev_t
*vd
, const char *path
)
2489 if (vd
->vdev_path
!= NULL
&& strcmp(path
, vd
->vdev_path
) == 0)
2492 for (c
= 0; c
< vd
->vdev_children
; c
++)
2493 if ((mvd
= vdev_lookup_by_path(vd
->vdev_child
[c
], path
)) !=
2501 * Find the first available hole which can be used as a top-level.
2504 find_vdev_hole(spa_t
*spa
)
2506 vdev_t
*rvd
= spa
->spa_root_vdev
;
2509 ASSERT(spa_config_held(spa
, SCL_VDEV
, RW_READER
) == SCL_VDEV
);
2511 for (c
= 0; c
< rvd
->vdev_children
; c
++) {
2512 vdev_t
*cvd
= rvd
->vdev_child
[c
];
2514 if (cvd
->vdev_ishole
)
2521 * Verify that vdev_add() works as expected.
2525 ztest_vdev_add_remove(ztest_ds_t
*zd
, uint64_t id
)
2527 ztest_shared_t
*zs
= ztest_shared
;
2528 spa_t
*spa
= ztest_spa
;
2534 mutex_enter(&ztest_vdev_lock
);
2535 leaves
= MAX(zs
->zs_mirrors
+ zs
->zs_splits
, 1) * ztest_opts
.zo_raidz
;
2537 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2539 ztest_shared
->zs_vdev_next_leaf
= find_vdev_hole(spa
) * leaves
;
2542 * If we have slogs then remove them 1/4 of the time.
2544 if (spa_has_slogs(spa
) && ztest_random(4) == 0) {
2546 * Grab the guid from the head of the log class rotor.
2548 guid
= spa_log_class(spa
)->mc_rotor
->mg_vd
->vdev_guid
;
2550 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2553 * We have to grab the zs_name_lock as writer to
2554 * prevent a race between removing a slog (dmu_objset_find)
2555 * and destroying a dataset. Removing the slog will
2556 * grab a reference on the dataset which may cause
2557 * dsl_destroy_head() to fail with EBUSY thus
2558 * leaving the dataset in an inconsistent state.
2560 rw_enter(&ztest_name_lock
, RW_WRITER
);
2561 error
= spa_vdev_remove(spa
, guid
, B_FALSE
);
2562 rw_exit(&ztest_name_lock
);
2564 if (error
&& error
!= EEXIST
)
2565 fatal(0, "spa_vdev_remove() = %d", error
);
2567 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2570 * Make 1/4 of the devices be log devices.
2572 nvroot
= make_vdev_root(NULL
, NULL
, NULL
,
2573 ztest_opts
.zo_vdev_size
, 0,
2574 ztest_random(4) == 0, ztest_opts
.zo_raidz
,
2577 error
= spa_vdev_add(spa
, nvroot
);
2578 nvlist_free(nvroot
);
2580 if (error
== ENOSPC
)
2581 ztest_record_enospc("spa_vdev_add");
2582 else if (error
!= 0)
2583 fatal(0, "spa_vdev_add() = %d", error
);
2586 mutex_exit(&ztest_vdev_lock
);
2590 * Verify that adding/removing aux devices (l2arc, hot spare) works as expected.
2594 ztest_vdev_aux_add_remove(ztest_ds_t
*zd
, uint64_t id
)
2596 ztest_shared_t
*zs
= ztest_shared
;
2597 spa_t
*spa
= ztest_spa
;
2598 vdev_t
*rvd
= spa
->spa_root_vdev
;
2599 spa_aux_vdev_t
*sav
;
2605 path
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
2607 if (ztest_random(2) == 0) {
2608 sav
= &spa
->spa_spares
;
2609 aux
= ZPOOL_CONFIG_SPARES
;
2611 sav
= &spa
->spa_l2cache
;
2612 aux
= ZPOOL_CONFIG_L2CACHE
;
2615 mutex_enter(&ztest_vdev_lock
);
2617 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2619 if (sav
->sav_count
!= 0 && ztest_random(4) == 0) {
2621 * Pick a random device to remove.
2623 guid
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)]->vdev_guid
;
2626 * Find an unused device we can add.
2628 zs
->zs_vdev_aux
= 0;
2631 (void) snprintf(path
, MAXPATHLEN
, ztest_aux_template
,
2632 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
, aux
,
2634 for (c
= 0; c
< sav
->sav_count
; c
++)
2635 if (strcmp(sav
->sav_vdevs
[c
]->vdev_path
,
2638 if (c
== sav
->sav_count
&&
2639 vdev_lookup_by_path(rvd
, path
) == NULL
)
2645 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2651 nvlist_t
*nvroot
= make_vdev_root(NULL
, aux
, NULL
,
2652 (ztest_opts
.zo_vdev_size
* 5) / 4, 0, 0, 0, 0, 1);
2653 error
= spa_vdev_add(spa
, nvroot
);
2655 fatal(0, "spa_vdev_add(%p) = %d", nvroot
, error
);
2656 nvlist_free(nvroot
);
2659 * Remove an existing device. Sometimes, dirty its
2660 * vdev state first to make sure we handle removal
2661 * of devices that have pending state changes.
2663 if (ztest_random(2) == 0)
2664 (void) vdev_online(spa
, guid
, 0, NULL
);
2666 error
= spa_vdev_remove(spa
, guid
, B_FALSE
);
2667 if (error
!= 0 && error
!= EBUSY
)
2668 fatal(0, "spa_vdev_remove(%llu) = %d", guid
, error
);
2671 mutex_exit(&ztest_vdev_lock
);
2673 umem_free(path
, MAXPATHLEN
);
2677 * split a pool if it has mirror tlvdevs
2681 ztest_split_pool(ztest_ds_t
*zd
, uint64_t id
)
2683 ztest_shared_t
*zs
= ztest_shared
;
2684 spa_t
*spa
= ztest_spa
;
2685 vdev_t
*rvd
= spa
->spa_root_vdev
;
2686 nvlist_t
*tree
, **child
, *config
, *split
, **schild
;
2687 uint_t c
, children
, schildren
= 0, lastlogid
= 0;
2690 mutex_enter(&ztest_vdev_lock
);
2692 /* ensure we have a useable config; mirrors of raidz aren't supported */
2693 if (zs
->zs_mirrors
< 3 || ztest_opts
.zo_raidz
> 1) {
2694 mutex_exit(&ztest_vdev_lock
);
2698 /* clean up the old pool, if any */
2699 (void) spa_destroy("splitp");
2701 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2703 /* generate a config from the existing config */
2704 mutex_enter(&spa
->spa_props_lock
);
2705 VERIFY(nvlist_lookup_nvlist(spa
->spa_config
, ZPOOL_CONFIG_VDEV_TREE
,
2707 mutex_exit(&spa
->spa_props_lock
);
2709 VERIFY(nvlist_lookup_nvlist_array(tree
, ZPOOL_CONFIG_CHILDREN
, &child
,
2712 schild
= malloc(rvd
->vdev_children
* sizeof (nvlist_t
*));
2713 for (c
= 0; c
< children
; c
++) {
2714 vdev_t
*tvd
= rvd
->vdev_child
[c
];
2718 if (tvd
->vdev_islog
|| tvd
->vdev_ops
== &vdev_hole_ops
) {
2719 VERIFY(nvlist_alloc(&schild
[schildren
], NV_UNIQUE_NAME
,
2721 VERIFY(nvlist_add_string(schild
[schildren
],
2722 ZPOOL_CONFIG_TYPE
, VDEV_TYPE_HOLE
) == 0);
2723 VERIFY(nvlist_add_uint64(schild
[schildren
],
2724 ZPOOL_CONFIG_IS_HOLE
, 1) == 0);
2726 lastlogid
= schildren
;
2731 VERIFY(nvlist_lookup_nvlist_array(child
[c
],
2732 ZPOOL_CONFIG_CHILDREN
, &mchild
, &mchildren
) == 0);
2733 VERIFY(nvlist_dup(mchild
[0], &schild
[schildren
++], 0) == 0);
2736 /* OK, create a config that can be used to split */
2737 VERIFY(nvlist_alloc(&split
, NV_UNIQUE_NAME
, 0) == 0);
2738 VERIFY(nvlist_add_string(split
, ZPOOL_CONFIG_TYPE
,
2739 VDEV_TYPE_ROOT
) == 0);
2740 VERIFY(nvlist_add_nvlist_array(split
, ZPOOL_CONFIG_CHILDREN
, schild
,
2741 lastlogid
!= 0 ? lastlogid
: schildren
) == 0);
2743 VERIFY(nvlist_alloc(&config
, NV_UNIQUE_NAME
, 0) == 0);
2744 VERIFY(nvlist_add_nvlist(config
, ZPOOL_CONFIG_VDEV_TREE
, split
) == 0);
2746 for (c
= 0; c
< schildren
; c
++)
2747 nvlist_free(schild
[c
]);
2751 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2753 (void) rw_enter(&ztest_name_lock
, RW_WRITER
);
2754 error
= spa_vdev_split_mirror(spa
, "splitp", config
, NULL
, B_FALSE
);
2755 (void) rw_exit(&ztest_name_lock
);
2757 nvlist_free(config
);
2760 (void) printf("successful split - results:\n");
2761 mutex_enter(&spa_namespace_lock
);
2762 show_pool_stats(spa
);
2763 show_pool_stats(spa_lookup("splitp"));
2764 mutex_exit(&spa_namespace_lock
);
2768 mutex_exit(&ztest_vdev_lock
);
2773 * Verify that we can attach and detach devices.
2777 ztest_vdev_attach_detach(ztest_ds_t
*zd
, uint64_t id
)
2779 ztest_shared_t
*zs
= ztest_shared
;
2780 spa_t
*spa
= ztest_spa
;
2781 spa_aux_vdev_t
*sav
= &spa
->spa_spares
;
2782 vdev_t
*rvd
= spa
->spa_root_vdev
;
2783 vdev_t
*oldvd
, *newvd
, *pvd
;
2787 uint64_t ashift
= ztest_get_ashift();
2788 uint64_t oldguid
, pguid
;
2789 uint64_t oldsize
, newsize
;
2790 char *oldpath
, *newpath
;
2792 int oldvd_has_siblings
= B_FALSE
;
2793 int newvd_is_spare
= B_FALSE
;
2795 int error
, expected_error
;
2797 oldpath
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
2798 newpath
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
2800 mutex_enter(&ztest_vdev_lock
);
2801 leaves
= MAX(zs
->zs_mirrors
, 1) * ztest_opts
.zo_raidz
;
2803 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2806 * Decide whether to do an attach or a replace.
2808 replacing
= ztest_random(2);
2811 * Pick a random top-level vdev.
2813 top
= ztest_random_vdev_top(spa
, B_TRUE
);
2816 * Pick a random leaf within it.
2818 leaf
= ztest_random(leaves
);
2823 oldvd
= rvd
->vdev_child
[top
];
2824 if (zs
->zs_mirrors
>= 1) {
2825 ASSERT(oldvd
->vdev_ops
== &vdev_mirror_ops
);
2826 ASSERT(oldvd
->vdev_children
>= zs
->zs_mirrors
);
2827 oldvd
= oldvd
->vdev_child
[leaf
/ ztest_opts
.zo_raidz
];
2829 if (ztest_opts
.zo_raidz
> 1) {
2830 ASSERT(oldvd
->vdev_ops
== &vdev_raidz_ops
);
2831 ASSERT(oldvd
->vdev_children
== ztest_opts
.zo_raidz
);
2832 oldvd
= oldvd
->vdev_child
[leaf
% ztest_opts
.zo_raidz
];
2836 * If we're already doing an attach or replace, oldvd may be a
2837 * mirror vdev -- in which case, pick a random child.
2839 while (oldvd
->vdev_children
!= 0) {
2840 oldvd_has_siblings
= B_TRUE
;
2841 ASSERT(oldvd
->vdev_children
>= 2);
2842 oldvd
= oldvd
->vdev_child
[ztest_random(oldvd
->vdev_children
)];
2845 oldguid
= oldvd
->vdev_guid
;
2846 oldsize
= vdev_get_min_asize(oldvd
);
2847 oldvd_is_log
= oldvd
->vdev_top
->vdev_islog
;
2848 (void) strcpy(oldpath
, oldvd
->vdev_path
);
2849 pvd
= oldvd
->vdev_parent
;
2850 pguid
= pvd
->vdev_guid
;
2853 * If oldvd has siblings, then half of the time, detach it.
2855 if (oldvd_has_siblings
&& ztest_random(2) == 0) {
2856 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2857 error
= spa_vdev_detach(spa
, oldguid
, pguid
, B_FALSE
);
2858 if (error
!= 0 && error
!= ENODEV
&& error
!= EBUSY
&&
2860 fatal(0, "detach (%s) returned %d", oldpath
, error
);
2865 * For the new vdev, choose with equal probability between the two
2866 * standard paths (ending in either 'a' or 'b') or a random hot spare.
2868 if (sav
->sav_count
!= 0 && ztest_random(3) == 0) {
2869 newvd
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)];
2870 newvd_is_spare
= B_TRUE
;
2871 (void) strcpy(newpath
, newvd
->vdev_path
);
2873 (void) snprintf(newpath
, MAXPATHLEN
, ztest_dev_template
,
2874 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
2875 top
* leaves
+ leaf
);
2876 if (ztest_random(2) == 0)
2877 newpath
[strlen(newpath
) - 1] = 'b';
2878 newvd
= vdev_lookup_by_path(rvd
, newpath
);
2882 newsize
= vdev_get_min_asize(newvd
);
2885 * Make newsize a little bigger or smaller than oldsize.
2886 * If it's smaller, the attach should fail.
2887 * If it's larger, and we're doing a replace,
2888 * we should get dynamic LUN growth when we're done.
2890 newsize
= 10 * oldsize
/ (9 + ztest_random(3));
2894 * If pvd is not a mirror or root, the attach should fail with ENOTSUP,
2895 * unless it's a replace; in that case any non-replacing parent is OK.
2897 * If newvd is already part of the pool, it should fail with EBUSY.
2899 * If newvd is too small, it should fail with EOVERFLOW.
2901 if (pvd
->vdev_ops
!= &vdev_mirror_ops
&&
2902 pvd
->vdev_ops
!= &vdev_root_ops
&& (!replacing
||
2903 pvd
->vdev_ops
== &vdev_replacing_ops
||
2904 pvd
->vdev_ops
== &vdev_spare_ops
))
2905 expected_error
= ENOTSUP
;
2906 else if (newvd_is_spare
&& (!replacing
|| oldvd_is_log
))
2907 expected_error
= ENOTSUP
;
2908 else if (newvd
== oldvd
)
2909 expected_error
= replacing
? 0 : EBUSY
;
2910 else if (vdev_lookup_by_path(rvd
, newpath
) != NULL
)
2911 expected_error
= EBUSY
;
2912 else if (newsize
< oldsize
)
2913 expected_error
= EOVERFLOW
;
2914 else if (ashift
> oldvd
->vdev_top
->vdev_ashift
)
2915 expected_error
= EDOM
;
2919 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2922 * Build the nvlist describing newpath.
2924 root
= make_vdev_root(newpath
, NULL
, NULL
, newvd
== NULL
? newsize
: 0,
2925 ashift
, 0, 0, 0, 1);
2927 error
= spa_vdev_attach(spa
, oldguid
, root
, replacing
);
2932 * If our parent was the replacing vdev, but the replace completed,
2933 * then instead of failing with ENOTSUP we may either succeed,
2934 * fail with ENODEV, or fail with EOVERFLOW.
2936 if (expected_error
== ENOTSUP
&&
2937 (error
== 0 || error
== ENODEV
|| error
== EOVERFLOW
))
2938 expected_error
= error
;
2941 * If someone grew the LUN, the replacement may be too small.
2943 if (error
== EOVERFLOW
|| error
== EBUSY
)
2944 expected_error
= error
;
2946 /* XXX workaround 6690467 */
2947 if (error
!= expected_error
&& expected_error
!= EBUSY
) {
2948 fatal(0, "attach (%s %llu, %s %llu, %d) "
2949 "returned %d, expected %d",
2950 oldpath
, oldsize
, newpath
,
2951 newsize
, replacing
, error
, expected_error
);
2954 mutex_exit(&ztest_vdev_lock
);
2956 umem_free(oldpath
, MAXPATHLEN
);
2957 umem_free(newpath
, MAXPATHLEN
);
2961 * Callback function which expands the physical size of the vdev.
2964 grow_vdev(vdev_t
*vd
, void *arg
)
2966 ASSERTV(spa_t
*spa
= vd
->vdev_spa
);
2967 size_t *newsize
= arg
;
2971 ASSERT(spa_config_held(spa
, SCL_STATE
, RW_READER
) == SCL_STATE
);
2972 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
2974 if ((fd
= open(vd
->vdev_path
, O_RDWR
)) == -1)
2977 fsize
= lseek(fd
, 0, SEEK_END
);
2978 VERIFY(ftruncate(fd
, *newsize
) == 0);
2980 if (ztest_opts
.zo_verbose
>= 6) {
2981 (void) printf("%s grew from %lu to %lu bytes\n",
2982 vd
->vdev_path
, (ulong_t
)fsize
, (ulong_t
)*newsize
);
2989 * Callback function which expands a given vdev by calling vdev_online().
2993 online_vdev(vdev_t
*vd
, void *arg
)
2995 spa_t
*spa
= vd
->vdev_spa
;
2996 vdev_t
*tvd
= vd
->vdev_top
;
2997 uint64_t guid
= vd
->vdev_guid
;
2998 uint64_t generation
= spa
->spa_config_generation
+ 1;
2999 vdev_state_t newstate
= VDEV_STATE_UNKNOWN
;
3002 ASSERT(spa_config_held(spa
, SCL_STATE
, RW_READER
) == SCL_STATE
);
3003 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
3005 /* Calling vdev_online will initialize the new metaslabs */
3006 spa_config_exit(spa
, SCL_STATE
, spa
);
3007 error
= vdev_online(spa
, guid
, ZFS_ONLINE_EXPAND
, &newstate
);
3008 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3011 * If vdev_online returned an error or the underlying vdev_open
3012 * failed then we abort the expand. The only way to know that
3013 * vdev_open fails is by checking the returned newstate.
3015 if (error
|| newstate
!= VDEV_STATE_HEALTHY
) {
3016 if (ztest_opts
.zo_verbose
>= 5) {
3017 (void) printf("Unable to expand vdev, state %llu, "
3018 "error %d\n", (u_longlong_t
)newstate
, error
);
3022 ASSERT3U(newstate
, ==, VDEV_STATE_HEALTHY
);
3025 * Since we dropped the lock we need to ensure that we're
3026 * still talking to the original vdev. It's possible this
3027 * vdev may have been detached/replaced while we were
3028 * trying to online it.
3030 if (generation
!= spa
->spa_config_generation
) {
3031 if (ztest_opts
.zo_verbose
>= 5) {
3032 (void) printf("vdev configuration has changed, "
3033 "guid %llu, state %llu, expected gen %llu, "
3036 (u_longlong_t
)tvd
->vdev_state
,
3037 (u_longlong_t
)generation
,
3038 (u_longlong_t
)spa
->spa_config_generation
);
3046 * Traverse the vdev tree calling the supplied function.
3047 * We continue to walk the tree until we either have walked all
3048 * children or we receive a non-NULL return from the callback.
3049 * If a NULL callback is passed, then we just return back the first
3050 * leaf vdev we encounter.
3053 vdev_walk_tree(vdev_t
*vd
, vdev_t
*(*func
)(vdev_t
*, void *), void *arg
)
3057 if (vd
->vdev_ops
->vdev_op_leaf
) {
3061 return (func(vd
, arg
));
3064 for (c
= 0; c
< vd
->vdev_children
; c
++) {
3065 vdev_t
*cvd
= vd
->vdev_child
[c
];
3066 if ((cvd
= vdev_walk_tree(cvd
, func
, arg
)) != NULL
)
3073 * Verify that dynamic LUN growth works as expected.
3077 ztest_vdev_LUN_growth(ztest_ds_t
*zd
, uint64_t id
)
3079 spa_t
*spa
= ztest_spa
;
3081 metaslab_class_t
*mc
;
3082 metaslab_group_t
*mg
;
3083 size_t psize
, newsize
;
3085 uint64_t old_class_space
, new_class_space
, old_ms_count
, new_ms_count
;
3087 mutex_enter(&ztest_vdev_lock
);
3088 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3090 top
= ztest_random_vdev_top(spa
, B_TRUE
);
3092 tvd
= spa
->spa_root_vdev
->vdev_child
[top
];
3095 old_ms_count
= tvd
->vdev_ms_count
;
3096 old_class_space
= metaslab_class_get_space(mc
);
3099 * Determine the size of the first leaf vdev associated with
3100 * our top-level device.
3102 vd
= vdev_walk_tree(tvd
, NULL
, NULL
);
3103 ASSERT3P(vd
, !=, NULL
);
3104 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
3106 psize
= vd
->vdev_psize
;
3109 * We only try to expand the vdev if it's healthy, less than 4x its
3110 * original size, and it has a valid psize.
3112 if (tvd
->vdev_state
!= VDEV_STATE_HEALTHY
||
3113 psize
== 0 || psize
>= 4 * ztest_opts
.zo_vdev_size
) {
3114 spa_config_exit(spa
, SCL_STATE
, spa
);
3115 mutex_exit(&ztest_vdev_lock
);
3119 newsize
= psize
+ psize
/ 8;
3120 ASSERT3U(newsize
, >, psize
);
3122 if (ztest_opts
.zo_verbose
>= 6) {
3123 (void) printf("Expanding LUN %s from %lu to %lu\n",
3124 vd
->vdev_path
, (ulong_t
)psize
, (ulong_t
)newsize
);
3128 * Growing the vdev is a two step process:
3129 * 1). expand the physical size (i.e. relabel)
3130 * 2). online the vdev to create the new metaslabs
3132 if (vdev_walk_tree(tvd
, grow_vdev
, &newsize
) != NULL
||
3133 vdev_walk_tree(tvd
, online_vdev
, NULL
) != NULL
||
3134 tvd
->vdev_state
!= VDEV_STATE_HEALTHY
) {
3135 if (ztest_opts
.zo_verbose
>= 5) {
3136 (void) printf("Could not expand LUN because "
3137 "the vdev configuration changed.\n");
3139 spa_config_exit(spa
, SCL_STATE
, spa
);
3140 mutex_exit(&ztest_vdev_lock
);
3144 spa_config_exit(spa
, SCL_STATE
, spa
);
3147 * Expanding the LUN will update the config asynchronously,
3148 * thus we must wait for the async thread to complete any
3149 * pending tasks before proceeding.
3153 mutex_enter(&spa
->spa_async_lock
);
3154 done
= (spa
->spa_async_thread
== NULL
&& !spa
->spa_async_tasks
);
3155 mutex_exit(&spa
->spa_async_lock
);
3158 txg_wait_synced(spa_get_dsl(spa
), 0);
3159 (void) poll(NULL
, 0, 100);
3162 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3164 tvd
= spa
->spa_root_vdev
->vdev_child
[top
];
3165 new_ms_count
= tvd
->vdev_ms_count
;
3166 new_class_space
= metaslab_class_get_space(mc
);
3168 if (tvd
->vdev_mg
!= mg
|| mg
->mg_class
!= mc
) {
3169 if (ztest_opts
.zo_verbose
>= 5) {
3170 (void) printf("Could not verify LUN expansion due to "
3171 "intervening vdev offline or remove.\n");
3173 spa_config_exit(spa
, SCL_STATE
, spa
);
3174 mutex_exit(&ztest_vdev_lock
);
3179 * Make sure we were able to grow the vdev.
3181 if (new_ms_count
<= old_ms_count
)
3182 fatal(0, "LUN expansion failed: ms_count %llu <= %llu\n",
3183 old_ms_count
, new_ms_count
);
3186 * Make sure we were able to grow the pool.
3188 if (new_class_space
<= old_class_space
)
3189 fatal(0, "LUN expansion failed: class_space %llu <= %llu\n",
3190 old_class_space
, new_class_space
);
3192 if (ztest_opts
.zo_verbose
>= 5) {
3193 char oldnumbuf
[6], newnumbuf
[6];
3195 nicenum(old_class_space
, oldnumbuf
);
3196 nicenum(new_class_space
, newnumbuf
);
3197 (void) printf("%s grew from %s to %s\n",
3198 spa
->spa_name
, oldnumbuf
, newnumbuf
);
3201 spa_config_exit(spa
, SCL_STATE
, spa
);
3202 mutex_exit(&ztest_vdev_lock
);
3206 * Verify that dmu_objset_{create,destroy,open,close} work as expected.
3210 ztest_objset_create_cb(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
)
3213 * Create the objects common to all ztest datasets.
3215 VERIFY(zap_create_claim(os
, ZTEST_DIROBJ
,
3216 DMU_OT_ZAP_OTHER
, DMU_OT_NONE
, 0, tx
) == 0);
3220 ztest_dataset_create(char *dsname
)
3222 uint64_t zilset
= ztest_random(100);
3223 int err
= dmu_objset_create(dsname
, DMU_OST_OTHER
, 0,
3224 ztest_objset_create_cb
, NULL
);
3226 if (err
|| zilset
< 80)
3229 if (ztest_opts
.zo_verbose
>= 5)
3230 (void) printf("Setting dataset %s to sync always\n", dsname
);
3231 return (ztest_dsl_prop_set_uint64(dsname
, ZFS_PROP_SYNC
,
3232 ZFS_SYNC_ALWAYS
, B_FALSE
));
3237 ztest_objset_destroy_cb(const char *name
, void *arg
)
3240 dmu_object_info_t doi
;
3244 * Verify that the dataset contains a directory object.
3246 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_TRUE
, FTAG
, &os
));
3247 error
= dmu_object_info(os
, ZTEST_DIROBJ
, &doi
);
3248 if (error
!= ENOENT
) {
3249 /* We could have crashed in the middle of destroying it */
3251 ASSERT3U(doi
.doi_type
, ==, DMU_OT_ZAP_OTHER
);
3252 ASSERT3S(doi
.doi_physical_blocks_512
, >=, 0);
3254 dmu_objset_disown(os
, FTAG
);
3257 * Destroy the dataset.
3259 if (strchr(name
, '@') != NULL
) {
3260 VERIFY0(dsl_destroy_snapshot(name
, B_FALSE
));
3262 VERIFY0(dsl_destroy_head(name
));
3268 ztest_snapshot_create(char *osname
, uint64_t id
)
3270 char snapname
[MAXNAMELEN
];
3273 (void) snprintf(snapname
, sizeof (snapname
), "%llu", (u_longlong_t
)id
);
3275 error
= dmu_objset_snapshot_one(osname
, snapname
);
3276 if (error
== ENOSPC
) {
3277 ztest_record_enospc(FTAG
);
3280 if (error
!= 0 && error
!= EEXIST
) {
3281 fatal(0, "ztest_snapshot_create(%s@%s) = %d", osname
,
3288 ztest_snapshot_destroy(char *osname
, uint64_t id
)
3290 char snapname
[MAXNAMELEN
];
3293 (void) snprintf(snapname
, MAXNAMELEN
, "%s@%llu", osname
,
3296 error
= dsl_destroy_snapshot(snapname
, B_FALSE
);
3297 if (error
!= 0 && error
!= ENOENT
)
3298 fatal(0, "ztest_snapshot_destroy(%s) = %d", snapname
, error
);
3304 ztest_dmu_objset_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
3314 zdtmp
= umem_alloc(sizeof (ztest_ds_t
), UMEM_NOFAIL
);
3315 name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3317 (void) rw_enter(&ztest_name_lock
, RW_READER
);
3319 (void) snprintf(name
, MAXNAMELEN
, "%s/temp_%llu",
3320 ztest_opts
.zo_pool
, (u_longlong_t
)id
);
3323 * If this dataset exists from a previous run, process its replay log
3324 * half of the time. If we don't replay it, then dsl_destroy_head()
3325 * (invoked from ztest_objset_destroy_cb()) should just throw it away.
3327 if (ztest_random(2) == 0 &&
3328 dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os
) == 0) {
3329 ztest_zd_init(zdtmp
, NULL
, os
);
3330 zil_replay(os
, zdtmp
, ztest_replay_vector
);
3331 ztest_zd_fini(zdtmp
);
3332 dmu_objset_disown(os
, FTAG
);
3336 * There may be an old instance of the dataset we're about to
3337 * create lying around from a previous run. If so, destroy it
3338 * and all of its snapshots.
3340 (void) dmu_objset_find(name
, ztest_objset_destroy_cb
, NULL
,
3341 DS_FIND_CHILDREN
| DS_FIND_SNAPSHOTS
);
3344 * Verify that the destroyed dataset is no longer in the namespace.
3346 VERIFY3U(ENOENT
, ==, dmu_objset_own(name
, DMU_OST_OTHER
, B_TRUE
,
3350 * Verify that we can create a new dataset.
3352 error
= ztest_dataset_create(name
);
3354 if (error
== ENOSPC
) {
3355 ztest_record_enospc(FTAG
);
3358 fatal(0, "dmu_objset_create(%s) = %d", name
, error
);
3361 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os
));
3363 ztest_zd_init(zdtmp
, NULL
, os
);
3366 * Open the intent log for it.
3368 zilog
= zil_open(os
, ztest_get_data
);
3371 * Put some objects in there, do a little I/O to them,
3372 * and randomly take a couple of snapshots along the way.
3374 iters
= ztest_random(5);
3375 for (i
= 0; i
< iters
; i
++) {
3376 ztest_dmu_object_alloc_free(zdtmp
, id
);
3377 if (ztest_random(iters
) == 0)
3378 (void) ztest_snapshot_create(name
, i
);
3382 * Verify that we cannot create an existing dataset.
3384 VERIFY3U(EEXIST
, ==,
3385 dmu_objset_create(name
, DMU_OST_OTHER
, 0, NULL
, NULL
));
3388 * Verify that we can hold an objset that is also owned.
3390 VERIFY3U(0, ==, dmu_objset_hold(name
, FTAG
, &os2
));
3391 dmu_objset_rele(os2
, FTAG
);
3394 * Verify that we cannot own an objset that is already owned.
3397 dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os2
));
3400 dmu_objset_disown(os
, FTAG
);
3401 ztest_zd_fini(zdtmp
);
3403 (void) rw_exit(&ztest_name_lock
);
3405 umem_free(name
, MAXNAMELEN
);
3406 umem_free(zdtmp
, sizeof (ztest_ds_t
));
3410 * Verify that dmu_snapshot_{create,destroy,open,close} work as expected.
3413 ztest_dmu_snapshot_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
3415 (void) rw_enter(&ztest_name_lock
, RW_READER
);
3416 (void) ztest_snapshot_destroy(zd
->zd_name
, id
);
3417 (void) ztest_snapshot_create(zd
->zd_name
, id
);
3418 (void) rw_exit(&ztest_name_lock
);
3422 * Cleanup non-standard snapshots and clones.
3425 ztest_dsl_dataset_cleanup(char *osname
, uint64_t id
)
3434 snap1name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3435 clone1name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3436 snap2name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3437 clone2name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3438 snap3name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3440 (void) snprintf(snap1name
, MAXNAMELEN
, "%s@s1_%llu",
3441 osname
, (u_longlong_t
)id
);
3442 (void) snprintf(clone1name
, MAXNAMELEN
, "%s/c1_%llu",
3443 osname
, (u_longlong_t
)id
);
3444 (void) snprintf(snap2name
, MAXNAMELEN
, "%s@s2_%llu",
3445 clone1name
, (u_longlong_t
)id
);
3446 (void) snprintf(clone2name
, MAXNAMELEN
, "%s/c2_%llu",
3447 osname
, (u_longlong_t
)id
);
3448 (void) snprintf(snap3name
, MAXNAMELEN
, "%s@s3_%llu",
3449 clone1name
, (u_longlong_t
)id
);
3451 error
= dsl_destroy_head(clone2name
);
3452 if (error
&& error
!= ENOENT
)
3453 fatal(0, "dsl_destroy_head(%s) = %d", clone2name
, error
);
3454 error
= dsl_destroy_snapshot(snap3name
, B_FALSE
);
3455 if (error
&& error
!= ENOENT
)
3456 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap3name
, error
);
3457 error
= dsl_destroy_snapshot(snap2name
, B_FALSE
);
3458 if (error
&& error
!= ENOENT
)
3459 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap2name
, error
);
3460 error
= dsl_destroy_head(clone1name
);
3461 if (error
&& error
!= ENOENT
)
3462 fatal(0, "dsl_destroy_head(%s) = %d", clone1name
, error
);
3463 error
= dsl_destroy_snapshot(snap1name
, B_FALSE
);
3464 if (error
&& error
!= ENOENT
)
3465 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap1name
, error
);
3467 umem_free(snap1name
, MAXNAMELEN
);
3468 umem_free(clone1name
, MAXNAMELEN
);
3469 umem_free(snap2name
, MAXNAMELEN
);
3470 umem_free(clone2name
, MAXNAMELEN
);
3471 umem_free(snap3name
, MAXNAMELEN
);
3475 * Verify dsl_dataset_promote handles EBUSY
3478 ztest_dsl_dataset_promote_busy(ztest_ds_t
*zd
, uint64_t id
)
3486 char *osname
= zd
->zd_name
;
3489 snap1name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3490 clone1name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3491 snap2name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3492 clone2name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3493 snap3name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3495 (void) rw_enter(&ztest_name_lock
, RW_READER
);
3497 ztest_dsl_dataset_cleanup(osname
, id
);
3499 (void) snprintf(snap1name
, MAXNAMELEN
, "%s@s1_%llu",
3500 osname
, (u_longlong_t
)id
);
3501 (void) snprintf(clone1name
, MAXNAMELEN
, "%s/c1_%llu",
3502 osname
, (u_longlong_t
)id
);
3503 (void) snprintf(snap2name
, MAXNAMELEN
, "%s@s2_%llu",
3504 clone1name
, (u_longlong_t
)id
);
3505 (void) snprintf(clone2name
, MAXNAMELEN
, "%s/c2_%llu",
3506 osname
, (u_longlong_t
)id
);
3507 (void) snprintf(snap3name
, MAXNAMELEN
, "%s@s3_%llu",
3508 clone1name
, (u_longlong_t
)id
);
3510 error
= dmu_objset_snapshot_one(osname
, strchr(snap1name
, '@') + 1);
3511 if (error
&& error
!= EEXIST
) {
3512 if (error
== ENOSPC
) {
3513 ztest_record_enospc(FTAG
);
3516 fatal(0, "dmu_take_snapshot(%s) = %d", snap1name
, error
);
3519 error
= dmu_objset_clone(clone1name
, snap1name
);
3521 if (error
== ENOSPC
) {
3522 ztest_record_enospc(FTAG
);
3525 fatal(0, "dmu_objset_create(%s) = %d", clone1name
, error
);
3528 error
= dmu_objset_snapshot_one(clone1name
, strchr(snap2name
, '@') + 1);
3529 if (error
&& error
!= EEXIST
) {
3530 if (error
== ENOSPC
) {
3531 ztest_record_enospc(FTAG
);
3534 fatal(0, "dmu_open_snapshot(%s) = %d", snap2name
, error
);
3537 error
= dmu_objset_snapshot_one(clone1name
, strchr(snap3name
, '@') + 1);
3538 if (error
&& error
!= EEXIST
) {
3539 if (error
== ENOSPC
) {
3540 ztest_record_enospc(FTAG
);
3543 fatal(0, "dmu_open_snapshot(%s) = %d", snap3name
, error
);
3546 error
= dmu_objset_clone(clone2name
, snap3name
);
3548 if (error
== ENOSPC
) {
3549 ztest_record_enospc(FTAG
);
3552 fatal(0, "dmu_objset_create(%s) = %d", clone2name
, error
);
3555 error
= dmu_objset_own(snap2name
, DMU_OST_ANY
, B_TRUE
, FTAG
, &os
);
3557 fatal(0, "dmu_objset_own(%s) = %d", snap2name
, error
);
3558 error
= dsl_dataset_promote(clone2name
, NULL
);
3560 fatal(0, "dsl_dataset_promote(%s), %d, not EBUSY", clone2name
,
3562 dmu_objset_disown(os
, FTAG
);
3565 ztest_dsl_dataset_cleanup(osname
, id
);
3567 (void) rw_exit(&ztest_name_lock
);
3569 umem_free(snap1name
, MAXNAMELEN
);
3570 umem_free(clone1name
, MAXNAMELEN
);
3571 umem_free(snap2name
, MAXNAMELEN
);
3572 umem_free(clone2name
, MAXNAMELEN
);
3573 umem_free(snap3name
, MAXNAMELEN
);
3576 #undef OD_ARRAY_SIZE
3577 #define OD_ARRAY_SIZE 4
3580 * Verify that dmu_object_{alloc,free} work as expected.
3583 ztest_dmu_object_alloc_free(ztest_ds_t
*zd
, uint64_t id
)
3590 size
= sizeof(ztest_od_t
) * OD_ARRAY_SIZE
;
3591 od
= umem_alloc(size
, UMEM_NOFAIL
);
3592 batchsize
= OD_ARRAY_SIZE
;
3594 for (b
= 0; b
< batchsize
; b
++)
3595 ztest_od_init(od
+ b
, id
, FTAG
, b
, DMU_OT_UINT64_OTHER
, 0, 0);
3598 * Destroy the previous batch of objects, create a new batch,
3599 * and do some I/O on the new objects.
3601 if (ztest_object_init(zd
, od
, size
, B_TRUE
) != 0)
3604 while (ztest_random(4 * batchsize
) != 0)
3605 ztest_io(zd
, od
[ztest_random(batchsize
)].od_object
,
3606 ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
3608 umem_free(od
, size
);
3611 #undef OD_ARRAY_SIZE
3612 #define OD_ARRAY_SIZE 2
3615 * Verify that dmu_{read,write} work as expected.
3618 ztest_dmu_read_write(ztest_ds_t
*zd
, uint64_t id
)
3623 objset_t
*os
= zd
->zd_os
;
3624 size
= sizeof(ztest_od_t
) * OD_ARRAY_SIZE
;
3625 od
= umem_alloc(size
, UMEM_NOFAIL
);
3627 int i
, freeit
, error
;
3629 bufwad_t
*packbuf
, *bigbuf
, *pack
, *bigH
, *bigT
;
3630 uint64_t packobj
, packoff
, packsize
, bigobj
, bigoff
, bigsize
;
3631 uint64_t chunksize
= (1000 + ztest_random(1000)) * sizeof (uint64_t);
3632 uint64_t regions
= 997;
3633 uint64_t stride
= 123456789ULL;
3634 uint64_t width
= 40;
3635 int free_percent
= 5;
3638 * This test uses two objects, packobj and bigobj, that are always
3639 * updated together (i.e. in the same tx) so that their contents are
3640 * in sync and can be compared. Their contents relate to each other
3641 * in a simple way: packobj is a dense array of 'bufwad' structures,
3642 * while bigobj is a sparse array of the same bufwads. Specifically,
3643 * for any index n, there are three bufwads that should be identical:
3645 * packobj, at offset n * sizeof (bufwad_t)
3646 * bigobj, at the head of the nth chunk
3647 * bigobj, at the tail of the nth chunk
3649 * The chunk size is arbitrary. It doesn't have to be a power of two,
3650 * and it doesn't have any relation to the object blocksize.
3651 * The only requirement is that it can hold at least two bufwads.
3653 * Normally, we write the bufwad to each of these locations.
3654 * However, free_percent of the time we instead write zeroes to
3655 * packobj and perform a dmu_free_range() on bigobj. By comparing
3656 * bigobj to packobj, we can verify that the DMU is correctly
3657 * tracking which parts of an object are allocated and free,
3658 * and that the contents of the allocated blocks are correct.
3662 * Read the directory info. If it's the first time, set things up.
3664 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, chunksize
);
3665 ztest_od_init(od
+ 1, id
, FTAG
, 1, DMU_OT_UINT64_OTHER
, 0, chunksize
);
3667 if (ztest_object_init(zd
, od
, size
, B_FALSE
) != 0) {
3668 umem_free(od
, size
);
3672 bigobj
= od
[0].od_object
;
3673 packobj
= od
[1].od_object
;
3674 chunksize
= od
[0].od_gen
;
3675 ASSERT(chunksize
== od
[1].od_gen
);
3678 * Prefetch a random chunk of the big object.
3679 * Our aim here is to get some async reads in flight
3680 * for blocks that we may free below; the DMU should
3681 * handle this race correctly.
3683 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
3684 s
= 1 + ztest_random(2 * width
- 1);
3685 dmu_prefetch(os
, bigobj
, n
* chunksize
, s
* chunksize
);
3688 * Pick a random index and compute the offsets into packobj and bigobj.
3690 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
3691 s
= 1 + ztest_random(width
- 1);
3693 packoff
= n
* sizeof (bufwad_t
);
3694 packsize
= s
* sizeof (bufwad_t
);
3696 bigoff
= n
* chunksize
;
3697 bigsize
= s
* chunksize
;
3699 packbuf
= umem_alloc(packsize
, UMEM_NOFAIL
);
3700 bigbuf
= umem_alloc(bigsize
, UMEM_NOFAIL
);
3703 * free_percent of the time, free a range of bigobj rather than
3706 freeit
= (ztest_random(100) < free_percent
);
3709 * Read the current contents of our objects.
3711 error
= dmu_read(os
, packobj
, packoff
, packsize
, packbuf
,
3714 error
= dmu_read(os
, bigobj
, bigoff
, bigsize
, bigbuf
,
3719 * Get a tx for the mods to both packobj and bigobj.
3721 tx
= dmu_tx_create(os
);
3723 dmu_tx_hold_write(tx
, packobj
, packoff
, packsize
);
3726 dmu_tx_hold_free(tx
, bigobj
, bigoff
, bigsize
);
3728 dmu_tx_hold_write(tx
, bigobj
, bigoff
, bigsize
);
3730 /* This accounts for setting the checksum/compression. */
3731 dmu_tx_hold_bonus(tx
, bigobj
);
3733 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
3735 umem_free(packbuf
, packsize
);
3736 umem_free(bigbuf
, bigsize
);
3737 umem_free(od
, size
);
3741 dmu_object_set_checksum(os
, bigobj
,
3742 (enum zio_checksum
)ztest_random_dsl_prop(ZFS_PROP_CHECKSUM
), tx
);
3744 dmu_object_set_compress(os
, bigobj
,
3745 (enum zio_compress
)ztest_random_dsl_prop(ZFS_PROP_COMPRESSION
), tx
);
3748 * For each index from n to n + s, verify that the existing bufwad
3749 * in packobj matches the bufwads at the head and tail of the
3750 * corresponding chunk in bigobj. Then update all three bufwads
3751 * with the new values we want to write out.
3753 for (i
= 0; i
< s
; i
++) {
3755 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
3757 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* chunksize
);
3759 bigT
= (bufwad_t
*)((char *)bigH
+ chunksize
) - 1;
3761 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
3762 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
3764 if (pack
->bw_txg
> txg
)
3765 fatal(0, "future leak: got %llx, open txg is %llx",
3768 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
3769 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
3770 pack
->bw_index
, n
, i
);
3772 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
3773 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
3775 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
3776 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
3779 bzero(pack
, sizeof (bufwad_t
));
3781 pack
->bw_index
= n
+ i
;
3783 pack
->bw_data
= 1 + ztest_random(-2ULL);
3790 * We've verified all the old bufwads, and made new ones.
3791 * Now write them out.
3793 dmu_write(os
, packobj
, packoff
, packsize
, packbuf
, tx
);
3796 if (ztest_opts
.zo_verbose
>= 7) {
3797 (void) printf("freeing offset %llx size %llx"
3799 (u_longlong_t
)bigoff
,
3800 (u_longlong_t
)bigsize
,
3803 VERIFY(0 == dmu_free_range(os
, bigobj
, bigoff
, bigsize
, tx
));
3805 if (ztest_opts
.zo_verbose
>= 7) {
3806 (void) printf("writing offset %llx size %llx"
3808 (u_longlong_t
)bigoff
,
3809 (u_longlong_t
)bigsize
,
3812 dmu_write(os
, bigobj
, bigoff
, bigsize
, bigbuf
, tx
);
3818 * Sanity check the stuff we just wrote.
3821 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
3822 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
3824 VERIFY(0 == dmu_read(os
, packobj
, packoff
,
3825 packsize
, packcheck
, DMU_READ_PREFETCH
));
3826 VERIFY(0 == dmu_read(os
, bigobj
, bigoff
,
3827 bigsize
, bigcheck
, DMU_READ_PREFETCH
));
3829 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
3830 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
3832 umem_free(packcheck
, packsize
);
3833 umem_free(bigcheck
, bigsize
);
3836 umem_free(packbuf
, packsize
);
3837 umem_free(bigbuf
, bigsize
);
3838 umem_free(od
, size
);
3842 compare_and_update_pbbufs(uint64_t s
, bufwad_t
*packbuf
, bufwad_t
*bigbuf
,
3843 uint64_t bigsize
, uint64_t n
, uint64_t chunksize
, uint64_t txg
)
3851 * For each index from n to n + s, verify that the existing bufwad
3852 * in packobj matches the bufwads at the head and tail of the
3853 * corresponding chunk in bigobj. Then update all three bufwads
3854 * with the new values we want to write out.
3856 for (i
= 0; i
< s
; i
++) {
3858 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
3860 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* chunksize
);
3862 bigT
= (bufwad_t
*)((char *)bigH
+ chunksize
) - 1;
3864 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
3865 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
3867 if (pack
->bw_txg
> txg
)
3868 fatal(0, "future leak: got %llx, open txg is %llx",
3871 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
3872 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
3873 pack
->bw_index
, n
, i
);
3875 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
3876 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
3878 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
3879 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
3881 pack
->bw_index
= n
+ i
;
3883 pack
->bw_data
= 1 + ztest_random(-2ULL);
3890 #undef OD_ARRAY_SIZE
3891 #define OD_ARRAY_SIZE 2
3894 ztest_dmu_read_write_zcopy(ztest_ds_t
*zd
, uint64_t id
)
3896 objset_t
*os
= zd
->zd_os
;
3903 bufwad_t
*packbuf
, *bigbuf
;
3904 uint64_t packobj
, packoff
, packsize
, bigobj
, bigoff
, bigsize
;
3905 uint64_t blocksize
= ztest_random_blocksize();
3906 uint64_t chunksize
= blocksize
;
3907 uint64_t regions
= 997;
3908 uint64_t stride
= 123456789ULL;
3910 dmu_buf_t
*bonus_db
;
3911 arc_buf_t
**bigbuf_arcbufs
;
3912 dmu_object_info_t doi
;
3914 size
= sizeof(ztest_od_t
) * OD_ARRAY_SIZE
;
3915 od
= umem_alloc(size
, UMEM_NOFAIL
);
3918 * This test uses two objects, packobj and bigobj, that are always
3919 * updated together (i.e. in the same tx) so that their contents are
3920 * in sync and can be compared. Their contents relate to each other
3921 * in a simple way: packobj is a dense array of 'bufwad' structures,
3922 * while bigobj is a sparse array of the same bufwads. Specifically,
3923 * for any index n, there are three bufwads that should be identical:
3925 * packobj, at offset n * sizeof (bufwad_t)
3926 * bigobj, at the head of the nth chunk
3927 * bigobj, at the tail of the nth chunk
3929 * The chunk size is set equal to bigobj block size so that
3930 * dmu_assign_arcbuf() can be tested for object updates.
3934 * Read the directory info. If it's the first time, set things up.
3936 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0);
3937 ztest_od_init(od
+ 1, id
, FTAG
, 1, DMU_OT_UINT64_OTHER
, 0, chunksize
);
3940 if (ztest_object_init(zd
, od
, size
, B_FALSE
) != 0) {
3941 umem_free(od
, size
);
3945 bigobj
= od
[0].od_object
;
3946 packobj
= od
[1].od_object
;
3947 blocksize
= od
[0].od_blocksize
;
3948 chunksize
= blocksize
;
3949 ASSERT(chunksize
== od
[1].od_gen
);
3951 VERIFY(dmu_object_info(os
, bigobj
, &doi
) == 0);
3952 VERIFY(ISP2(doi
.doi_data_block_size
));
3953 VERIFY(chunksize
== doi
.doi_data_block_size
);
3954 VERIFY(chunksize
>= 2 * sizeof (bufwad_t
));
3957 * Pick a random index and compute the offsets into packobj and bigobj.
3959 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
3960 s
= 1 + ztest_random(width
- 1);
3962 packoff
= n
* sizeof (bufwad_t
);
3963 packsize
= s
* sizeof (bufwad_t
);
3965 bigoff
= n
* chunksize
;
3966 bigsize
= s
* chunksize
;
3968 packbuf
= umem_zalloc(packsize
, UMEM_NOFAIL
);
3969 bigbuf
= umem_zalloc(bigsize
, UMEM_NOFAIL
);
3971 VERIFY3U(0, ==, dmu_bonus_hold(os
, bigobj
, FTAG
, &bonus_db
));
3973 bigbuf_arcbufs
= umem_zalloc(2 * s
* sizeof (arc_buf_t
*), UMEM_NOFAIL
);
3976 * Iteration 0 test zcopy for DB_UNCACHED dbufs.
3977 * Iteration 1 test zcopy to already referenced dbufs.
3978 * Iteration 2 test zcopy to dirty dbuf in the same txg.
3979 * Iteration 3 test zcopy to dbuf dirty in previous txg.
3980 * Iteration 4 test zcopy when dbuf is no longer dirty.
3981 * Iteration 5 test zcopy when it can't be done.
3982 * Iteration 6 one more zcopy write.
3984 for (i
= 0; i
< 7; i
++) {
3989 * In iteration 5 (i == 5) use arcbufs
3990 * that don't match bigobj blksz to test
3991 * dmu_assign_arcbuf() when it can't directly
3992 * assign an arcbuf to a dbuf.
3994 for (j
= 0; j
< s
; j
++) {
3997 dmu_request_arcbuf(bonus_db
, chunksize
);
3999 bigbuf_arcbufs
[2 * j
] =
4000 dmu_request_arcbuf(bonus_db
, chunksize
/ 2);
4001 bigbuf_arcbufs
[2 * j
+ 1] =
4002 dmu_request_arcbuf(bonus_db
, chunksize
/ 2);
4007 * Get a tx for the mods to both packobj and bigobj.
4009 tx
= dmu_tx_create(os
);
4011 dmu_tx_hold_write(tx
, packobj
, packoff
, packsize
);
4012 dmu_tx_hold_write(tx
, bigobj
, bigoff
, bigsize
);
4014 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4016 umem_free(packbuf
, packsize
);
4017 umem_free(bigbuf
, bigsize
);
4018 for (j
= 0; j
< s
; j
++) {
4020 dmu_return_arcbuf(bigbuf_arcbufs
[j
]);
4023 bigbuf_arcbufs
[2 * j
]);
4025 bigbuf_arcbufs
[2 * j
+ 1]);
4028 umem_free(bigbuf_arcbufs
, 2 * s
* sizeof (arc_buf_t
*));
4029 umem_free(od
, size
);
4030 dmu_buf_rele(bonus_db
, FTAG
);
4035 * 50% of the time don't read objects in the 1st iteration to
4036 * test dmu_assign_arcbuf() for the case when there're no
4037 * existing dbufs for the specified offsets.
4039 if (i
!= 0 || ztest_random(2) != 0) {
4040 error
= dmu_read(os
, packobj
, packoff
,
4041 packsize
, packbuf
, DMU_READ_PREFETCH
);
4043 error
= dmu_read(os
, bigobj
, bigoff
, bigsize
,
4044 bigbuf
, DMU_READ_PREFETCH
);
4047 compare_and_update_pbbufs(s
, packbuf
, bigbuf
, bigsize
,
4051 * We've verified all the old bufwads, and made new ones.
4052 * Now write them out.
4054 dmu_write(os
, packobj
, packoff
, packsize
, packbuf
, tx
);
4055 if (ztest_opts
.zo_verbose
>= 7) {
4056 (void) printf("writing offset %llx size %llx"
4058 (u_longlong_t
)bigoff
,
4059 (u_longlong_t
)bigsize
,
4062 for (off
= bigoff
, j
= 0; j
< s
; j
++, off
+= chunksize
) {
4065 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
),
4066 bigbuf_arcbufs
[j
]->b_data
, chunksize
);
4068 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
),
4069 bigbuf_arcbufs
[2 * j
]->b_data
,
4071 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
) +
4073 bigbuf_arcbufs
[2 * j
+ 1]->b_data
,
4078 VERIFY(dmu_buf_hold(os
, bigobj
, off
,
4079 FTAG
, &dbt
, DMU_READ_NO_PREFETCH
) == 0);
4082 dmu_assign_arcbuf(bonus_db
, off
,
4083 bigbuf_arcbufs
[j
], tx
);
4085 dmu_assign_arcbuf(bonus_db
, off
,
4086 bigbuf_arcbufs
[2 * j
], tx
);
4087 dmu_assign_arcbuf(bonus_db
,
4088 off
+ chunksize
/ 2,
4089 bigbuf_arcbufs
[2 * j
+ 1], tx
);
4092 dmu_buf_rele(dbt
, FTAG
);
4098 * Sanity check the stuff we just wrote.
4101 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
4102 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
4104 VERIFY(0 == dmu_read(os
, packobj
, packoff
,
4105 packsize
, packcheck
, DMU_READ_PREFETCH
));
4106 VERIFY(0 == dmu_read(os
, bigobj
, bigoff
,
4107 bigsize
, bigcheck
, DMU_READ_PREFETCH
));
4109 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
4110 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
4112 umem_free(packcheck
, packsize
);
4113 umem_free(bigcheck
, bigsize
);
4116 txg_wait_open(dmu_objset_pool(os
), 0);
4117 } else if (i
== 3) {
4118 txg_wait_synced(dmu_objset_pool(os
), 0);
4122 dmu_buf_rele(bonus_db
, FTAG
);
4123 umem_free(packbuf
, packsize
);
4124 umem_free(bigbuf
, bigsize
);
4125 umem_free(bigbuf_arcbufs
, 2 * s
* sizeof (arc_buf_t
*));
4126 umem_free(od
, size
);
4131 ztest_dmu_write_parallel(ztest_ds_t
*zd
, uint64_t id
)
4135 od
= umem_alloc(sizeof(ztest_od_t
), UMEM_NOFAIL
);
4136 uint64_t offset
= (1ULL << (ztest_random(20) + 43)) +
4137 (ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
4140 * Have multiple threads write to large offsets in an object
4141 * to verify that parallel writes to an object -- even to the
4142 * same blocks within the object -- doesn't cause any trouble.
4144 ztest_od_init(od
, ID_PARALLEL
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0);
4146 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0)
4149 while (ztest_random(10) != 0)
4150 ztest_io(zd
, od
->od_object
, offset
);
4152 umem_free(od
, sizeof(ztest_od_t
));
4156 ztest_dmu_prealloc(ztest_ds_t
*zd
, uint64_t id
)
4159 uint64_t offset
= (1ULL << (ztest_random(4) + SPA_MAXBLOCKSHIFT
)) +
4160 (ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
4161 uint64_t count
= ztest_random(20) + 1;
4162 uint64_t blocksize
= ztest_random_blocksize();
4165 od
= umem_alloc(sizeof(ztest_od_t
), UMEM_NOFAIL
);
4167 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0);
4169 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), !ztest_random(2)) != 0) {
4170 umem_free(od
, sizeof(ztest_od_t
));
4174 if (ztest_truncate(zd
, od
->od_object
, offset
, count
* blocksize
) != 0) {
4175 umem_free(od
, sizeof(ztest_od_t
));
4179 ztest_prealloc(zd
, od
->od_object
, offset
, count
* blocksize
);
4181 data
= umem_zalloc(blocksize
, UMEM_NOFAIL
);
4183 while (ztest_random(count
) != 0) {
4184 uint64_t randoff
= offset
+ (ztest_random(count
) * blocksize
);
4185 if (ztest_write(zd
, od
->od_object
, randoff
, blocksize
,
4188 while (ztest_random(4) != 0)
4189 ztest_io(zd
, od
->od_object
, randoff
);
4192 umem_free(data
, blocksize
);
4193 umem_free(od
, sizeof(ztest_od_t
));
4197 * Verify that zap_{create,destroy,add,remove,update} work as expected.
4199 #define ZTEST_ZAP_MIN_INTS 1
4200 #define ZTEST_ZAP_MAX_INTS 4
4201 #define ZTEST_ZAP_MAX_PROPS 1000
4204 ztest_zap(ztest_ds_t
*zd
, uint64_t id
)
4206 objset_t
*os
= zd
->zd_os
;
4209 uint64_t txg
, last_txg
;
4210 uint64_t value
[ZTEST_ZAP_MAX_INTS
];
4211 uint64_t zl_ints
, zl_intsize
, prop
;
4214 char propname
[100], txgname
[100];
4216 char *hc
[2] = { "s.acl.h", ".s.open.h.hyLZlg" };
4218 od
= umem_alloc(sizeof(ztest_od_t
), UMEM_NOFAIL
);
4219 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_ZAP_OTHER
, 0, 0);
4221 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
),
4222 !ztest_random(2)) != 0)
4225 object
= od
->od_object
;
4228 * Generate a known hash collision, and verify that
4229 * we can lookup and remove both entries.
4231 tx
= dmu_tx_create(os
);
4232 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4233 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4236 for (i
= 0; i
< 2; i
++) {
4238 VERIFY3U(0, ==, zap_add(os
, object
, hc
[i
], sizeof (uint64_t),
4241 for (i
= 0; i
< 2; i
++) {
4242 VERIFY3U(EEXIST
, ==, zap_add(os
, object
, hc
[i
],
4243 sizeof (uint64_t), 1, &value
[i
], tx
));
4245 zap_length(os
, object
, hc
[i
], &zl_intsize
, &zl_ints
));
4246 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4247 ASSERT3U(zl_ints
, ==, 1);
4249 for (i
= 0; i
< 2; i
++) {
4250 VERIFY3U(0, ==, zap_remove(os
, object
, hc
[i
], tx
));
4255 * Generate a buch of random entries.
4257 ints
= MAX(ZTEST_ZAP_MIN_INTS
, object
% ZTEST_ZAP_MAX_INTS
);
4259 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
4260 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
4261 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
4262 bzero(value
, sizeof (value
));
4266 * If these zap entries already exist, validate their contents.
4268 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
4270 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4271 ASSERT3U(zl_ints
, ==, 1);
4273 VERIFY(zap_lookup(os
, object
, txgname
, zl_intsize
,
4274 zl_ints
, &last_txg
) == 0);
4276 VERIFY(zap_length(os
, object
, propname
, &zl_intsize
,
4279 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4280 ASSERT3U(zl_ints
, ==, ints
);
4282 VERIFY(zap_lookup(os
, object
, propname
, zl_intsize
,
4283 zl_ints
, value
) == 0);
4285 for (i
= 0; i
< ints
; i
++) {
4286 ASSERT3U(value
[i
], ==, last_txg
+ object
+ i
);
4289 ASSERT3U(error
, ==, ENOENT
);
4293 * Atomically update two entries in our zap object.
4294 * The first is named txg_%llu, and contains the txg
4295 * in which the property was last updated. The second
4296 * is named prop_%llu, and the nth element of its value
4297 * should be txg + object + n.
4299 tx
= dmu_tx_create(os
);
4300 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4301 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4306 fatal(0, "zap future leak: old %llu new %llu", last_txg
, txg
);
4308 for (i
= 0; i
< ints
; i
++)
4309 value
[i
] = txg
+ object
+ i
;
4311 VERIFY3U(0, ==, zap_update(os
, object
, txgname
, sizeof (uint64_t),
4313 VERIFY3U(0, ==, zap_update(os
, object
, propname
, sizeof (uint64_t),
4319 * Remove a random pair of entries.
4321 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
4322 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
4323 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
4325 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
4327 if (error
== ENOENT
)
4332 tx
= dmu_tx_create(os
);
4333 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4334 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4337 VERIFY3U(0, ==, zap_remove(os
, object
, txgname
, tx
));
4338 VERIFY3U(0, ==, zap_remove(os
, object
, propname
, tx
));
4341 umem_free(od
, sizeof(ztest_od_t
));
4345 * Testcase to test the upgrading of a microzap to fatzap.
4348 ztest_fzap(ztest_ds_t
*zd
, uint64_t id
)
4350 objset_t
*os
= zd
->zd_os
;
4352 uint64_t object
, txg
;
4355 od
= umem_alloc(sizeof(ztest_od_t
), UMEM_NOFAIL
);
4356 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_ZAP_OTHER
, 0, 0);
4358 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
),
4359 !ztest_random(2)) != 0)
4361 object
= od
->od_object
;
4364 * Add entries to this ZAP and make sure it spills over
4365 * and gets upgraded to a fatzap. Also, since we are adding
4366 * 2050 entries we should see ptrtbl growth and leaf-block split.
4368 for (i
= 0; i
< 2050; i
++) {
4369 char name
[MAXNAMELEN
];
4374 (void) snprintf(name
, sizeof (name
), "fzap-%llu-%llu",
4375 (u_longlong_t
)id
, (u_longlong_t
)value
);
4377 tx
= dmu_tx_create(os
);
4378 dmu_tx_hold_zap(tx
, object
, B_TRUE
, name
);
4379 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4382 error
= zap_add(os
, object
, name
, sizeof (uint64_t), 1,
4384 ASSERT(error
== 0 || error
== EEXIST
);
4388 umem_free(od
, sizeof(ztest_od_t
));
4393 ztest_zap_parallel(ztest_ds_t
*zd
, uint64_t id
)
4395 objset_t
*os
= zd
->zd_os
;
4397 uint64_t txg
, object
, count
, wsize
, wc
, zl_wsize
, zl_wc
;
4399 int i
, namelen
, error
;
4400 int micro
= ztest_random(2);
4401 char name
[20], string_value
[20];
4404 od
= umem_alloc(sizeof(ztest_od_t
), UMEM_NOFAIL
);
4405 ztest_od_init(od
, ID_PARALLEL
, FTAG
, micro
, DMU_OT_ZAP_OTHER
, 0, 0);
4407 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
4408 umem_free(od
, sizeof(ztest_od_t
));
4412 object
= od
->od_object
;
4415 * Generate a random name of the form 'xxx.....' where each
4416 * x is a random printable character and the dots are dots.
4417 * There are 94 such characters, and the name length goes from
4418 * 6 to 20, so there are 94^3 * 15 = 12,458,760 possible names.
4420 namelen
= ztest_random(sizeof (name
) - 5) + 5 + 1;
4422 for (i
= 0; i
< 3; i
++)
4423 name
[i
] = '!' + ztest_random('~' - '!' + 1);
4424 for (; i
< namelen
- 1; i
++)
4428 if ((namelen
& 1) || micro
) {
4429 wsize
= sizeof (txg
);
4435 data
= string_value
;
4439 VERIFY0(zap_count(os
, object
, &count
));
4440 ASSERT(count
!= -1ULL);
4443 * Select an operation: length, lookup, add, update, remove.
4445 i
= ztest_random(5);
4448 tx
= dmu_tx_create(os
);
4449 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4450 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4453 bcopy(name
, string_value
, namelen
);
4457 bzero(string_value
, namelen
);
4463 error
= zap_length(os
, object
, name
, &zl_wsize
, &zl_wc
);
4465 ASSERT3U(wsize
, ==, zl_wsize
);
4466 ASSERT3U(wc
, ==, zl_wc
);
4468 ASSERT3U(error
, ==, ENOENT
);
4473 error
= zap_lookup(os
, object
, name
, wsize
, wc
, data
);
4475 if (data
== string_value
&&
4476 bcmp(name
, data
, namelen
) != 0)
4477 fatal(0, "name '%s' != val '%s' len %d",
4478 name
, data
, namelen
);
4480 ASSERT3U(error
, ==, ENOENT
);
4485 error
= zap_add(os
, object
, name
, wsize
, wc
, data
, tx
);
4486 ASSERT(error
== 0 || error
== EEXIST
);
4490 VERIFY(zap_update(os
, object
, name
, wsize
, wc
, data
, tx
) == 0);
4494 error
= zap_remove(os
, object
, name
, tx
);
4495 ASSERT(error
== 0 || error
== ENOENT
);
4502 umem_free(od
, sizeof(ztest_od_t
));
4506 * Commit callback data.
4508 typedef struct ztest_cb_data
{
4509 list_node_t zcd_node
;
4511 int zcd_expected_err
;
4512 boolean_t zcd_added
;
4513 boolean_t zcd_called
;
4517 /* This is the actual commit callback function */
4519 ztest_commit_callback(void *arg
, int error
)
4521 ztest_cb_data_t
*data
= arg
;
4522 uint64_t synced_txg
;
4524 VERIFY(data
!= NULL
);
4525 VERIFY3S(data
->zcd_expected_err
, ==, error
);
4526 VERIFY(!data
->zcd_called
);
4528 synced_txg
= spa_last_synced_txg(data
->zcd_spa
);
4529 if (data
->zcd_txg
> synced_txg
)
4530 fatal(0, "commit callback of txg %" PRIu64
" called prematurely"
4531 ", last synced txg = %" PRIu64
"\n", data
->zcd_txg
,
4534 data
->zcd_called
= B_TRUE
;
4536 if (error
== ECANCELED
) {
4537 ASSERT0(data
->zcd_txg
);
4538 ASSERT(!data
->zcd_added
);
4541 * The private callback data should be destroyed here, but
4542 * since we are going to check the zcd_called field after
4543 * dmu_tx_abort(), we will destroy it there.
4548 ASSERT(data
->zcd_added
);
4549 ASSERT3U(data
->zcd_txg
, !=, 0);
4551 (void) mutex_enter(&zcl
.zcl_callbacks_lock
);
4553 /* See if this cb was called more quickly */
4554 if ((synced_txg
- data
->zcd_txg
) < zc_min_txg_delay
)
4555 zc_min_txg_delay
= synced_txg
- data
->zcd_txg
;
4557 /* Remove our callback from the list */
4558 list_remove(&zcl
.zcl_callbacks
, data
);
4560 (void) mutex_exit(&zcl
.zcl_callbacks_lock
);
4562 umem_free(data
, sizeof (ztest_cb_data_t
));
4565 /* Allocate and initialize callback data structure */
4566 static ztest_cb_data_t
*
4567 ztest_create_cb_data(objset_t
*os
, uint64_t txg
)
4569 ztest_cb_data_t
*cb_data
;
4571 cb_data
= umem_zalloc(sizeof (ztest_cb_data_t
), UMEM_NOFAIL
);
4573 cb_data
->zcd_txg
= txg
;
4574 cb_data
->zcd_spa
= dmu_objset_spa(os
);
4575 list_link_init(&cb_data
->zcd_node
);
4581 * Commit callback test.
4584 ztest_dmu_commit_callbacks(ztest_ds_t
*zd
, uint64_t id
)
4586 objset_t
*os
= zd
->zd_os
;
4589 ztest_cb_data_t
*cb_data
[3], *tmp_cb
;
4590 uint64_t old_txg
, txg
;
4593 od
= umem_alloc(sizeof(ztest_od_t
), UMEM_NOFAIL
);
4594 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0);
4596 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
4597 umem_free(od
, sizeof(ztest_od_t
));
4601 tx
= dmu_tx_create(os
);
4603 cb_data
[0] = ztest_create_cb_data(os
, 0);
4604 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[0]);
4606 dmu_tx_hold_write(tx
, od
->od_object
, 0, sizeof (uint64_t));
4608 /* Every once in a while, abort the transaction on purpose */
4609 if (ztest_random(100) == 0)
4613 error
= dmu_tx_assign(tx
, TXG_NOWAIT
);
4615 txg
= error
? 0 : dmu_tx_get_txg(tx
);
4617 cb_data
[0]->zcd_txg
= txg
;
4618 cb_data
[1] = ztest_create_cb_data(os
, txg
);
4619 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[1]);
4623 * It's not a strict requirement to call the registered
4624 * callbacks from inside dmu_tx_abort(), but that's what
4625 * it's supposed to happen in the current implementation
4626 * so we will check for that.
4628 for (i
= 0; i
< 2; i
++) {
4629 cb_data
[i
]->zcd_expected_err
= ECANCELED
;
4630 VERIFY(!cb_data
[i
]->zcd_called
);
4635 for (i
= 0; i
< 2; i
++) {
4636 VERIFY(cb_data
[i
]->zcd_called
);
4637 umem_free(cb_data
[i
], sizeof (ztest_cb_data_t
));
4640 umem_free(od
, sizeof(ztest_od_t
));
4644 cb_data
[2] = ztest_create_cb_data(os
, txg
);
4645 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[2]);
4648 * Read existing data to make sure there isn't a future leak.
4650 VERIFY(0 == dmu_read(os
, od
->od_object
, 0, sizeof (uint64_t),
4651 &old_txg
, DMU_READ_PREFETCH
));
4654 fatal(0, "future leak: got %" PRIu64
", open txg is %" PRIu64
,
4657 dmu_write(os
, od
->od_object
, 0, sizeof (uint64_t), &txg
, tx
);
4659 (void) mutex_enter(&zcl
.zcl_callbacks_lock
);
4662 * Since commit callbacks don't have any ordering requirement and since
4663 * it is theoretically possible for a commit callback to be called
4664 * after an arbitrary amount of time has elapsed since its txg has been
4665 * synced, it is difficult to reliably determine whether a commit
4666 * callback hasn't been called due to high load or due to a flawed
4669 * In practice, we will assume that if after a certain number of txgs a
4670 * commit callback hasn't been called, then most likely there's an
4671 * implementation bug..
4673 tmp_cb
= list_head(&zcl
.zcl_callbacks
);
4674 if (tmp_cb
!= NULL
&&
4675 tmp_cb
->zcd_txg
+ ZTEST_COMMIT_CB_THRESH
< txg
) {
4676 fatal(0, "Commit callback threshold exceeded, oldest txg: %"
4677 PRIu64
", open txg: %" PRIu64
"\n", tmp_cb
->zcd_txg
, txg
);
4681 * Let's find the place to insert our callbacks.
4683 * Even though the list is ordered by txg, it is possible for the
4684 * insertion point to not be the end because our txg may already be
4685 * quiescing at this point and other callbacks in the open txg
4686 * (from other objsets) may have sneaked in.
4688 tmp_cb
= list_tail(&zcl
.zcl_callbacks
);
4689 while (tmp_cb
!= NULL
&& tmp_cb
->zcd_txg
> txg
)
4690 tmp_cb
= list_prev(&zcl
.zcl_callbacks
, tmp_cb
);
4692 /* Add the 3 callbacks to the list */
4693 for (i
= 0; i
< 3; i
++) {
4695 list_insert_head(&zcl
.zcl_callbacks
, cb_data
[i
]);
4697 list_insert_after(&zcl
.zcl_callbacks
, tmp_cb
,
4700 cb_data
[i
]->zcd_added
= B_TRUE
;
4701 VERIFY(!cb_data
[i
]->zcd_called
);
4703 tmp_cb
= cb_data
[i
];
4708 (void) mutex_exit(&zcl
.zcl_callbacks_lock
);
4712 umem_free(od
, sizeof(ztest_od_t
));
4717 ztest_dsl_prop_get_set(ztest_ds_t
*zd
, uint64_t id
)
4719 zfs_prop_t proplist
[] = {
4721 ZFS_PROP_COMPRESSION
,
4727 (void) rw_enter(&ztest_name_lock
, RW_READER
);
4729 for (p
= 0; p
< sizeof (proplist
) / sizeof (proplist
[0]); p
++)
4730 (void) ztest_dsl_prop_set_uint64(zd
->zd_name
, proplist
[p
],
4731 ztest_random_dsl_prop(proplist
[p
]), (int)ztest_random(2));
4733 (void) rw_exit(&ztest_name_lock
);
4738 ztest_spa_prop_get_set(ztest_ds_t
*zd
, uint64_t id
)
4740 nvlist_t
*props
= NULL
;
4742 (void) rw_enter(&ztest_name_lock
, RW_READER
);
4744 (void) ztest_spa_prop_set_uint64(ZPOOL_PROP_DEDUPDITTO
,
4745 ZIO_DEDUPDITTO_MIN
+ ztest_random(ZIO_DEDUPDITTO_MIN
));
4747 VERIFY0(spa_prop_get(ztest_spa
, &props
));
4749 if (ztest_opts
.zo_verbose
>= 6)
4750 dump_nvlist(props
, 4);
4754 (void) rw_exit(&ztest_name_lock
);
4758 user_release_one(const char *snapname
, const char *holdname
)
4760 nvlist_t
*snaps
, *holds
;
4763 snaps
= fnvlist_alloc();
4764 holds
= fnvlist_alloc();
4765 fnvlist_add_boolean(holds
, holdname
);
4766 fnvlist_add_nvlist(snaps
, snapname
, holds
);
4767 fnvlist_free(holds
);
4768 error
= dsl_dataset_user_release(snaps
, NULL
);
4769 fnvlist_free(snaps
);
4774 * Test snapshot hold/release and deferred destroy.
4777 ztest_dmu_snapshot_hold(ztest_ds_t
*zd
, uint64_t id
)
4780 objset_t
*os
= zd
->zd_os
;
4784 char clonename
[100];
4786 char osname
[MAXNAMELEN
];
4789 (void) rw_enter(&ztest_name_lock
, RW_READER
);
4791 dmu_objset_name(os
, osname
);
4793 (void) snprintf(snapname
, sizeof (snapname
), "sh1_%llu", (long long unsigned int)id
);
4794 (void) snprintf(fullname
, sizeof (fullname
), "%s@%s", osname
, snapname
);
4795 (void) snprintf(clonename
, sizeof (clonename
),
4796 "%s/ch1_%llu", osname
, (long long unsigned int)id
);
4797 (void) snprintf(tag
, sizeof (tag
), "tag_%llu", (long long unsigned int)id
);
4800 * Clean up from any previous run.
4802 error
= dsl_destroy_head(clonename
);
4803 if (error
!= ENOENT
)
4805 error
= user_release_one(fullname
, tag
);
4806 if (error
!= ESRCH
&& error
!= ENOENT
)
4808 error
= dsl_destroy_snapshot(fullname
, B_FALSE
);
4809 if (error
!= ENOENT
)
4813 * Create snapshot, clone it, mark snap for deferred destroy,
4814 * destroy clone, verify snap was also destroyed.
4816 error
= dmu_objset_snapshot_one(osname
, snapname
);
4818 if (error
== ENOSPC
) {
4819 ztest_record_enospc("dmu_objset_snapshot");
4822 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname
, error
);
4825 error
= dmu_objset_clone(clonename
, fullname
);
4827 if (error
== ENOSPC
) {
4828 ztest_record_enospc("dmu_objset_clone");
4831 fatal(0, "dmu_objset_clone(%s) = %d", clonename
, error
);
4834 error
= dsl_destroy_snapshot(fullname
, B_TRUE
);
4836 fatal(0, "dsl_destroy_snapshot(%s, B_TRUE) = %d",
4840 error
= dsl_destroy_head(clonename
);
4842 fatal(0, "dsl_destroy_head(%s) = %d", clonename
, error
);
4844 error
= dmu_objset_hold(fullname
, FTAG
, &origin
);
4845 if (error
!= ENOENT
)
4846 fatal(0, "dmu_objset_hold(%s) = %d", fullname
, error
);
4849 * Create snapshot, add temporary hold, verify that we can't
4850 * destroy a held snapshot, mark for deferred destroy,
4851 * release hold, verify snapshot was destroyed.
4853 error
= dmu_objset_snapshot_one(osname
, snapname
);
4855 if (error
== ENOSPC
) {
4856 ztest_record_enospc("dmu_objset_snapshot");
4859 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname
, error
);
4862 holds
= fnvlist_alloc();
4863 fnvlist_add_string(holds
, fullname
, tag
);
4864 error
= dsl_dataset_user_hold(holds
, 0, NULL
);
4865 fnvlist_free(holds
);
4868 fatal(0, "dsl_dataset_user_hold(%s)", fullname
, tag
);
4870 error
= dsl_destroy_snapshot(fullname
, B_FALSE
);
4871 if (error
!= EBUSY
) {
4872 fatal(0, "dsl_destroy_snapshot(%s, B_FALSE) = %d",
4876 error
= dsl_destroy_snapshot(fullname
, B_TRUE
);
4878 fatal(0, "dsl_destroy_snapshot(%s, B_TRUE) = %d",
4882 error
= user_release_one(fullname
, tag
);
4884 fatal(0, "user_release_one(%s, %s) = %d", fullname
, tag
, error
);
4886 VERIFY3U(dmu_objset_hold(fullname
, FTAG
, &origin
), ==, ENOENT
);
4889 (void) rw_exit(&ztest_name_lock
);
4893 * Inject random faults into the on-disk data.
4897 ztest_fault_inject(ztest_ds_t
*zd
, uint64_t id
)
4899 ztest_shared_t
*zs
= ztest_shared
;
4900 spa_t
*spa
= ztest_spa
;
4904 uint64_t bad
= 0x1990c0ffeedecadeull
;
4909 int bshift
= SPA_MAXBLOCKSHIFT
+ 2; /* don't scrog all labels */
4915 boolean_t islog
= B_FALSE
;
4917 path0
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
4918 pathrand
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
4920 mutex_enter(&ztest_vdev_lock
);
4921 maxfaults
= MAXFAULTS();
4922 leaves
= MAX(zs
->zs_mirrors
, 1) * ztest_opts
.zo_raidz
;
4923 mirror_save
= zs
->zs_mirrors
;
4924 mutex_exit(&ztest_vdev_lock
);
4926 ASSERT(leaves
>= 1);
4929 * Grab the name lock as reader. There are some operations
4930 * which don't like to have their vdevs changed while
4931 * they are in progress (i.e. spa_change_guid). Those
4932 * operations will have grabbed the name lock as writer.
4934 (void) rw_enter(&ztest_name_lock
, RW_READER
);
4937 * We need SCL_STATE here because we're going to look at vd0->vdev_tsd.
4939 spa_config_enter(spa
, SCL_STATE
, FTAG
, RW_READER
);
4941 if (ztest_random(2) == 0) {
4943 * Inject errors on a normal data device or slog device.
4945 top
= ztest_random_vdev_top(spa
, B_TRUE
);
4946 leaf
= ztest_random(leaves
) + zs
->zs_splits
;
4949 * Generate paths to the first leaf in this top-level vdev,
4950 * and to the random leaf we selected. We'll induce transient
4951 * write failures and random online/offline activity on leaf 0,
4952 * and we'll write random garbage to the randomly chosen leaf.
4954 (void) snprintf(path0
, MAXPATHLEN
, ztest_dev_template
,
4955 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
4956 top
* leaves
+ zs
->zs_splits
);
4957 (void) snprintf(pathrand
, MAXPATHLEN
, ztest_dev_template
,
4958 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
4959 top
* leaves
+ leaf
);
4961 vd0
= vdev_lookup_by_path(spa
->spa_root_vdev
, path0
);
4962 if (vd0
!= NULL
&& vd0
->vdev_top
->vdev_islog
)
4966 * If the top-level vdev needs to be resilvered
4967 * then we only allow faults on the device that is
4970 if (vd0
!= NULL
&& maxfaults
!= 1 &&
4971 (!vdev_resilver_needed(vd0
->vdev_top
, NULL
, NULL
) ||
4972 vd0
->vdev_resilver_txg
!= 0)) {
4974 * Make vd0 explicitly claim to be unreadable,
4975 * or unwriteable, or reach behind its back
4976 * and close the underlying fd. We can do this if
4977 * maxfaults == 0 because we'll fail and reexecute,
4978 * and we can do it if maxfaults >= 2 because we'll
4979 * have enough redundancy. If maxfaults == 1, the
4980 * combination of this with injection of random data
4981 * corruption below exceeds the pool's fault tolerance.
4983 vdev_file_t
*vf
= vd0
->vdev_tsd
;
4985 if (vf
!= NULL
&& ztest_random(3) == 0) {
4986 (void) close(vf
->vf_vnode
->v_fd
);
4987 vf
->vf_vnode
->v_fd
= -1;
4988 } else if (ztest_random(2) == 0) {
4989 vd0
->vdev_cant_read
= B_TRUE
;
4991 vd0
->vdev_cant_write
= B_TRUE
;
4993 guid0
= vd0
->vdev_guid
;
4997 * Inject errors on an l2cache device.
4999 spa_aux_vdev_t
*sav
= &spa
->spa_l2cache
;
5001 if (sav
->sav_count
== 0) {
5002 spa_config_exit(spa
, SCL_STATE
, FTAG
);
5003 (void) rw_exit(&ztest_name_lock
);
5006 vd0
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)];
5007 guid0
= vd0
->vdev_guid
;
5008 (void) strcpy(path0
, vd0
->vdev_path
);
5009 (void) strcpy(pathrand
, vd0
->vdev_path
);
5013 maxfaults
= INT_MAX
; /* no limit on cache devices */
5016 spa_config_exit(spa
, SCL_STATE
, FTAG
);
5017 (void) rw_exit(&ztest_name_lock
);
5020 * If we can tolerate two or more faults, or we're dealing
5021 * with a slog, randomly online/offline vd0.
5023 if ((maxfaults
>= 2 || islog
) && guid0
!= 0) {
5024 if (ztest_random(10) < 6) {
5025 int flags
= (ztest_random(2) == 0 ?
5026 ZFS_OFFLINE_TEMPORARY
: 0);
5029 * We have to grab the zs_name_lock as writer to
5030 * prevent a race between offlining a slog and
5031 * destroying a dataset. Offlining the slog will
5032 * grab a reference on the dataset which may cause
5033 * dsl_destroy_head() to fail with EBUSY thus
5034 * leaving the dataset in an inconsistent state.
5037 (void) rw_enter(&ztest_name_lock
,
5040 VERIFY(vdev_offline(spa
, guid0
, flags
) != EBUSY
);
5043 (void) rw_exit(&ztest_name_lock
);
5046 * Ideally we would like to be able to randomly
5047 * call vdev_[on|off]line without holding locks
5048 * to force unpredictable failures but the side
5049 * effects of vdev_[on|off]line prevent us from
5050 * doing so. We grab the ztest_vdev_lock here to
5051 * prevent a race between injection testing and
5054 mutex_enter(&ztest_vdev_lock
);
5055 (void) vdev_online(spa
, guid0
, 0, NULL
);
5056 mutex_exit(&ztest_vdev_lock
);
5064 * We have at least single-fault tolerance, so inject data corruption.
5066 fd
= open(pathrand
, O_RDWR
);
5068 if (fd
== -1) /* we hit a gap in the device namespace */
5071 fsize
= lseek(fd
, 0, SEEK_END
);
5073 while (--iters
!= 0) {
5074 offset
= ztest_random(fsize
/ (leaves
<< bshift
)) *
5075 (leaves
<< bshift
) + (leaf
<< bshift
) +
5076 (ztest_random(1ULL << (bshift
- 1)) & -8ULL);
5078 if (offset
>= fsize
)
5081 mutex_enter(&ztest_vdev_lock
);
5082 if (mirror_save
!= zs
->zs_mirrors
) {
5083 mutex_exit(&ztest_vdev_lock
);
5088 if (pwrite(fd
, &bad
, sizeof (bad
), offset
) != sizeof (bad
))
5089 fatal(1, "can't inject bad word at 0x%llx in %s",
5092 mutex_exit(&ztest_vdev_lock
);
5094 if (ztest_opts
.zo_verbose
>= 7)
5095 (void) printf("injected bad word into %s,"
5096 " offset 0x%llx\n", pathrand
, (u_longlong_t
)offset
);
5101 umem_free(path0
, MAXPATHLEN
);
5102 umem_free(pathrand
, MAXPATHLEN
);
5106 * Verify that DDT repair works as expected.
5109 ztest_ddt_repair(ztest_ds_t
*zd
, uint64_t id
)
5111 ztest_shared_t
*zs
= ztest_shared
;
5112 spa_t
*spa
= ztest_spa
;
5113 objset_t
*os
= zd
->zd_os
;
5115 uint64_t object
, blocksize
, txg
, pattern
, psize
;
5116 enum zio_checksum checksum
= spa_dedup_checksum(spa
);
5121 int copies
= 2 * ZIO_DEDUPDITTO_MIN
;
5124 blocksize
= ztest_random_blocksize();
5125 blocksize
= MIN(blocksize
, 2048); /* because we write so many */
5127 od
= umem_alloc(sizeof(ztest_od_t
), UMEM_NOFAIL
);
5128 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0);
5130 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
5131 umem_free(od
, sizeof(ztest_od_t
));
5136 * Take the name lock as writer to prevent anyone else from changing
5137 * the pool and dataset properies we need to maintain during this test.
5139 (void) rw_enter(&ztest_name_lock
, RW_WRITER
);
5141 if (ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_DEDUP
, checksum
,
5143 ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_COPIES
, 1,
5145 (void) rw_exit(&ztest_name_lock
);
5146 umem_free(od
, sizeof(ztest_od_t
));
5150 object
= od
[0].od_object
;
5151 blocksize
= od
[0].od_blocksize
;
5152 pattern
= zs
->zs_guid
^ dmu_objset_fsid_guid(os
);
5154 ASSERT(object
!= 0);
5156 tx
= dmu_tx_create(os
);
5157 dmu_tx_hold_write(tx
, object
, 0, copies
* blocksize
);
5158 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
5160 (void) rw_exit(&ztest_name_lock
);
5161 umem_free(od
, sizeof(ztest_od_t
));
5166 * Write all the copies of our block.
5168 for (i
= 0; i
< copies
; i
++) {
5169 uint64_t offset
= i
* blocksize
;
5170 int error
= dmu_buf_hold(os
, object
, offset
, FTAG
, &db
,
5171 DMU_READ_NO_PREFETCH
);
5173 fatal(B_FALSE
, "dmu_buf_hold(%p, %llu, %llu) = %u",
5174 os
, (long long)object
, (long long) offset
, error
);
5176 ASSERT(db
->db_offset
== offset
);
5177 ASSERT(db
->db_size
== blocksize
);
5178 ASSERT(ztest_pattern_match(db
->db_data
, db
->db_size
, pattern
) ||
5179 ztest_pattern_match(db
->db_data
, db
->db_size
, 0ULL));
5180 dmu_buf_will_fill(db
, tx
);
5181 ztest_pattern_set(db
->db_data
, db
->db_size
, pattern
);
5182 dmu_buf_rele(db
, FTAG
);
5186 txg_wait_synced(spa_get_dsl(spa
), txg
);
5189 * Find out what block we got.
5191 VERIFY0(dmu_buf_hold(os
, object
, 0, FTAG
, &db
,
5192 DMU_READ_NO_PREFETCH
));
5193 blk
= *((dmu_buf_impl_t
*)db
)->db_blkptr
;
5194 dmu_buf_rele(db
, FTAG
);
5197 * Damage the block. Dedup-ditto will save us when we read it later.
5199 psize
= BP_GET_PSIZE(&blk
);
5200 buf
= zio_buf_alloc(psize
);
5201 ztest_pattern_set(buf
, psize
, ~pattern
);
5203 (void) zio_wait(zio_rewrite(NULL
, spa
, 0, &blk
,
5204 buf
, psize
, NULL
, NULL
, ZIO_PRIORITY_SYNC_WRITE
,
5205 ZIO_FLAG_CANFAIL
| ZIO_FLAG_INDUCE_DAMAGE
, NULL
));
5207 zio_buf_free(buf
, psize
);
5209 (void) rw_exit(&ztest_name_lock
);
5210 umem_free(od
, sizeof(ztest_od_t
));
5218 ztest_scrub(ztest_ds_t
*zd
, uint64_t id
)
5220 spa_t
*spa
= ztest_spa
;
5222 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5223 (void) poll(NULL
, 0, 100); /* wait a moment, then force a restart */
5224 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5228 * Change the guid for the pool.
5232 ztest_reguid(ztest_ds_t
*zd
, uint64_t id
)
5234 spa_t
*spa
= ztest_spa
;
5235 uint64_t orig
, load
;
5238 orig
= spa_guid(spa
);
5239 load
= spa_load_guid(spa
);
5241 (void) rw_enter(&ztest_name_lock
, RW_WRITER
);
5242 error
= spa_change_guid(spa
);
5243 (void) rw_exit(&ztest_name_lock
);
5248 if (ztest_opts
.zo_verbose
>= 4) {
5249 (void) printf("Changed guid old %llu -> %llu\n",
5250 (u_longlong_t
)orig
, (u_longlong_t
)spa_guid(spa
));
5253 VERIFY3U(orig
, !=, spa_guid(spa
));
5254 VERIFY3U(load
, ==, spa_load_guid(spa
));
5258 * Rename the pool to a different name and then rename it back.
5262 ztest_spa_rename(ztest_ds_t
*zd
, uint64_t id
)
5264 char *oldname
, *newname
;
5267 (void) rw_enter(&ztest_name_lock
, RW_WRITER
);
5269 oldname
= ztest_opts
.zo_pool
;
5270 newname
= umem_alloc(strlen(oldname
) + 5, UMEM_NOFAIL
);
5271 (void) strcpy(newname
, oldname
);
5272 (void) strcat(newname
, "_tmp");
5277 VERIFY3U(0, ==, spa_rename(oldname
, newname
));
5280 * Try to open it under the old name, which shouldn't exist
5282 VERIFY3U(ENOENT
, ==, spa_open(oldname
, &spa
, FTAG
));
5285 * Open it under the new name and make sure it's still the same spa_t.
5287 VERIFY3U(0, ==, spa_open(newname
, &spa
, FTAG
));
5289 ASSERT(spa
== ztest_spa
);
5290 spa_close(spa
, FTAG
);
5293 * Rename it back to the original
5295 VERIFY3U(0, ==, spa_rename(newname
, oldname
));
5298 * Make sure it can still be opened
5300 VERIFY3U(0, ==, spa_open(oldname
, &spa
, FTAG
));
5302 ASSERT(spa
== ztest_spa
);
5303 spa_close(spa
, FTAG
);
5305 umem_free(newname
, strlen(newname
) + 1);
5307 (void) rw_exit(&ztest_name_lock
);
5311 * Verify pool integrity by running zdb.
5314 ztest_run_zdb(char *pool
)
5322 bin
= umem_alloc(MAXPATHLEN
+ MAXNAMELEN
+ 20, UMEM_NOFAIL
);
5323 zdb
= umem_alloc(MAXPATHLEN
+ MAXNAMELEN
+ 20, UMEM_NOFAIL
);
5324 zbuf
= umem_alloc(1024, UMEM_NOFAIL
);
5326 VERIFY(realpath(getexecname(), bin
) != NULL
);
5327 if (strncmp(bin
, "/usr/sbin/ztest", 15) == 0) {
5328 strcpy(bin
, "/usr/sbin/zdb"); /* Installed */
5329 } else if (strncmp(bin
, "/sbin/ztest", 11) == 0) {
5330 strcpy(bin
, "/sbin/zdb"); /* Installed */
5332 strstr(bin
, "/ztest/")[0] = '\0'; /* In-tree */
5333 strcat(bin
, "/zdb/zdb");
5337 "%s -bcc%s%s -U %s %s",
5339 ztest_opts
.zo_verbose
>= 3 ? "s" : "",
5340 ztest_opts
.zo_verbose
>= 4 ? "v" : "",
5344 if (ztest_opts
.zo_verbose
>= 5)
5345 (void) printf("Executing %s\n", strstr(zdb
, "zdb "));
5347 fp
= popen(zdb
, "r");
5349 while (fgets(zbuf
, 1024, fp
) != NULL
)
5350 if (ztest_opts
.zo_verbose
>= 3)
5351 (void) printf("%s", zbuf
);
5353 status
= pclose(fp
);
5358 ztest_dump_core
= 0;
5359 if (WIFEXITED(status
))
5360 fatal(0, "'%s' exit code %d", zdb
, WEXITSTATUS(status
));
5362 fatal(0, "'%s' died with signal %d", zdb
, WTERMSIG(status
));
5364 umem_free(bin
, MAXPATHLEN
+ MAXNAMELEN
+ 20);
5365 umem_free(zdb
, MAXPATHLEN
+ MAXNAMELEN
+ 20);
5366 umem_free(zbuf
, 1024);
5370 ztest_walk_pool_directory(char *header
)
5374 if (ztest_opts
.zo_verbose
>= 6)
5375 (void) printf("%s\n", header
);
5377 mutex_enter(&spa_namespace_lock
);
5378 while ((spa
= spa_next(spa
)) != NULL
)
5379 if (ztest_opts
.zo_verbose
>= 6)
5380 (void) printf("\t%s\n", spa_name(spa
));
5381 mutex_exit(&spa_namespace_lock
);
5385 ztest_spa_import_export(char *oldname
, char *newname
)
5387 nvlist_t
*config
, *newconfig
;
5392 if (ztest_opts
.zo_verbose
>= 4) {
5393 (void) printf("import/export: old = %s, new = %s\n",
5398 * Clean up from previous runs.
5400 (void) spa_destroy(newname
);
5403 * Get the pool's configuration and guid.
5405 VERIFY3U(0, ==, spa_open(oldname
, &spa
, FTAG
));
5408 * Kick off a scrub to tickle scrub/export races.
5410 if (ztest_random(2) == 0)
5411 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5413 pool_guid
= spa_guid(spa
);
5414 spa_close(spa
, FTAG
);
5416 ztest_walk_pool_directory("pools before export");
5421 VERIFY3U(0, ==, spa_export(oldname
, &config
, B_FALSE
, B_FALSE
));
5423 ztest_walk_pool_directory("pools after export");
5428 newconfig
= spa_tryimport(config
);
5429 ASSERT(newconfig
!= NULL
);
5430 nvlist_free(newconfig
);
5433 * Import it under the new name.
5435 error
= spa_import(newname
, config
, NULL
, 0);
5437 dump_nvlist(config
, 0);
5438 fatal(B_FALSE
, "couldn't import pool %s as %s: error %u",
5439 oldname
, newname
, error
);
5442 ztest_walk_pool_directory("pools after import");
5445 * Try to import it again -- should fail with EEXIST.
5447 VERIFY3U(EEXIST
, ==, spa_import(newname
, config
, NULL
, 0));
5450 * Try to import it under a different name -- should fail with EEXIST.
5452 VERIFY3U(EEXIST
, ==, spa_import(oldname
, config
, NULL
, 0));
5455 * Verify that the pool is no longer visible under the old name.
5457 VERIFY3U(ENOENT
, ==, spa_open(oldname
, &spa
, FTAG
));
5460 * Verify that we can open and close the pool using the new name.
5462 VERIFY3U(0, ==, spa_open(newname
, &spa
, FTAG
));
5463 ASSERT(pool_guid
== spa_guid(spa
));
5464 spa_close(spa
, FTAG
);
5466 nvlist_free(config
);
5470 ztest_resume(spa_t
*spa
)
5472 if (spa_suspended(spa
) && ztest_opts
.zo_verbose
>= 6)
5473 (void) printf("resuming from suspended state\n");
5474 spa_vdev_state_enter(spa
, SCL_NONE
);
5475 vdev_clear(spa
, NULL
);
5476 (void) spa_vdev_state_exit(spa
, NULL
, 0);
5477 (void) zio_resume(spa
);
5481 ztest_resume_thread(void *arg
)
5485 while (!ztest_exiting
) {
5486 if (spa_suspended(spa
))
5488 (void) poll(NULL
, 0, 100);
5500 ztest_deadman_alarm(int sig
)
5502 fatal(0, "failed to complete within %d seconds of deadline", GRACE
);
5507 ztest_execute(int test
, ztest_info_t
*zi
, uint64_t id
)
5509 ztest_ds_t
*zd
= &ztest_ds
[id
% ztest_opts
.zo_datasets
];
5510 ztest_shared_callstate_t
*zc
= ZTEST_GET_SHARED_CALLSTATE(test
);
5511 hrtime_t functime
= gethrtime();
5514 for (i
= 0; i
< zi
->zi_iters
; i
++)
5515 zi
->zi_func(zd
, id
);
5517 functime
= gethrtime() - functime
;
5519 atomic_add_64(&zc
->zc_count
, 1);
5520 atomic_add_64(&zc
->zc_time
, functime
);
5522 if (ztest_opts
.zo_verbose
>= 4) {
5524 (void) dladdr((void *)zi
->zi_func
, &dli
);
5525 (void) printf("%6.2f sec in %s\n",
5526 (double)functime
/ NANOSEC
, dli
.dli_sname
);
5531 ztest_thread(void *arg
)
5534 uint64_t id
= (uintptr_t)arg
;
5535 ztest_shared_t
*zs
= ztest_shared
;
5539 ztest_shared_callstate_t
*zc
;
5541 while ((now
= gethrtime()) < zs
->zs_thread_stop
) {
5543 * See if it's time to force a crash.
5545 if (now
> zs
->zs_thread_kill
)
5549 * If we're getting ENOSPC with some regularity, stop.
5551 if (zs
->zs_enospc_count
> 10)
5555 * Pick a random function to execute.
5557 rand
= ztest_random(ZTEST_FUNCS
);
5558 zi
= &ztest_info
[rand
];
5559 zc
= ZTEST_GET_SHARED_CALLSTATE(rand
);
5560 call_next
= zc
->zc_next
;
5562 if (now
>= call_next
&&
5563 atomic_cas_64(&zc
->zc_next
, call_next
, call_next
+
5564 ztest_random(2 * zi
->zi_interval
[0] + 1)) == call_next
) {
5565 ztest_execute(rand
, zi
, id
);
5575 ztest_dataset_name(char *dsname
, char *pool
, int d
)
5577 (void) snprintf(dsname
, MAXNAMELEN
, "%s/ds_%d", pool
, d
);
5581 ztest_dataset_destroy(int d
)
5583 char name
[MAXNAMELEN
];
5586 ztest_dataset_name(name
, ztest_opts
.zo_pool
, d
);
5588 if (ztest_opts
.zo_verbose
>= 3)
5589 (void) printf("Destroying %s to free up space\n", name
);
5592 * Cleanup any non-standard clones and snapshots. In general,
5593 * ztest thread t operates on dataset (t % zopt_datasets),
5594 * so there may be more than one thing to clean up.
5596 for (t
= d
; t
< ztest_opts
.zo_threads
;
5597 t
+= ztest_opts
.zo_datasets
)
5598 ztest_dsl_dataset_cleanup(name
, t
);
5600 (void) dmu_objset_find(name
, ztest_objset_destroy_cb
, NULL
,
5601 DS_FIND_SNAPSHOTS
| DS_FIND_CHILDREN
);
5605 ztest_dataset_dirobj_verify(ztest_ds_t
*zd
)
5607 uint64_t usedobjs
, dirobjs
, scratch
;
5610 * ZTEST_DIROBJ is the object directory for the entire dataset.
5611 * Therefore, the number of objects in use should equal the
5612 * number of ZTEST_DIROBJ entries, +1 for ZTEST_DIROBJ itself.
5613 * If not, we have an object leak.
5615 * Note that we can only check this in ztest_dataset_open(),
5616 * when the open-context and syncing-context values agree.
5617 * That's because zap_count() returns the open-context value,
5618 * while dmu_objset_space() returns the rootbp fill count.
5620 VERIFY3U(0, ==, zap_count(zd
->zd_os
, ZTEST_DIROBJ
, &dirobjs
));
5621 dmu_objset_space(zd
->zd_os
, &scratch
, &scratch
, &usedobjs
, &scratch
);
5622 ASSERT3U(dirobjs
+ 1, ==, usedobjs
);
5626 ztest_dataset_open(int d
)
5628 ztest_ds_t
*zd
= &ztest_ds
[d
];
5629 uint64_t committed_seq
= ZTEST_GET_SHARED_DS(d
)->zd_seq
;
5632 char name
[MAXNAMELEN
];
5635 ztest_dataset_name(name
, ztest_opts
.zo_pool
, d
);
5637 (void) rw_enter(&ztest_name_lock
, RW_READER
);
5639 error
= ztest_dataset_create(name
);
5640 if (error
== ENOSPC
) {
5641 (void) rw_exit(&ztest_name_lock
);
5642 ztest_record_enospc(FTAG
);
5645 ASSERT(error
== 0 || error
== EEXIST
);
5647 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, zd
, &os
));
5648 (void) rw_exit(&ztest_name_lock
);
5650 ztest_zd_init(zd
, ZTEST_GET_SHARED_DS(d
), os
);
5652 zilog
= zd
->zd_zilog
;
5654 if (zilog
->zl_header
->zh_claim_lr_seq
!= 0 &&
5655 zilog
->zl_header
->zh_claim_lr_seq
< committed_seq
)
5656 fatal(0, "missing log records: claimed %llu < committed %llu",
5657 zilog
->zl_header
->zh_claim_lr_seq
, committed_seq
);
5659 ztest_dataset_dirobj_verify(zd
);
5661 zil_replay(os
, zd
, ztest_replay_vector
);
5663 ztest_dataset_dirobj_verify(zd
);
5665 if (ztest_opts
.zo_verbose
>= 6)
5666 (void) printf("%s replay %llu blocks, %llu records, seq %llu\n",
5668 (u_longlong_t
)zilog
->zl_parse_blk_count
,
5669 (u_longlong_t
)zilog
->zl_parse_lr_count
,
5670 (u_longlong_t
)zilog
->zl_replaying_seq
);
5672 zilog
= zil_open(os
, ztest_get_data
);
5674 if (zilog
->zl_replaying_seq
!= 0 &&
5675 zilog
->zl_replaying_seq
< committed_seq
)
5676 fatal(0, "missing log records: replayed %llu < committed %llu",
5677 zilog
->zl_replaying_seq
, committed_seq
);
5683 ztest_dataset_close(int d
)
5685 ztest_ds_t
*zd
= &ztest_ds
[d
];
5687 zil_close(zd
->zd_zilog
);
5688 dmu_objset_disown(zd
->zd_os
, zd
);
5694 * Kick off threads to run tests on all datasets in parallel.
5697 ztest_run(ztest_shared_t
*zs
)
5702 kthread_t
*resume_thread
;
5707 ztest_exiting
= B_FALSE
;
5710 * Initialize parent/child shared state.
5712 mutex_init(&ztest_vdev_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
5713 rw_init(&ztest_name_lock
, NULL
, RW_DEFAULT
, NULL
);
5715 zs
->zs_thread_start
= gethrtime();
5716 zs
->zs_thread_stop
=
5717 zs
->zs_thread_start
+ ztest_opts
.zo_passtime
* NANOSEC
;
5718 zs
->zs_thread_stop
= MIN(zs
->zs_thread_stop
, zs
->zs_proc_stop
);
5719 zs
->zs_thread_kill
= zs
->zs_thread_stop
;
5720 if (ztest_random(100) < ztest_opts
.zo_killrate
) {
5721 zs
->zs_thread_kill
-=
5722 ztest_random(ztest_opts
.zo_passtime
* NANOSEC
);
5725 mutex_init(&zcl
.zcl_callbacks_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
5727 list_create(&zcl
.zcl_callbacks
, sizeof (ztest_cb_data_t
),
5728 offsetof(ztest_cb_data_t
, zcd_node
));
5733 kernel_init(FREAD
| FWRITE
);
5734 VERIFY0(spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
5735 spa
->spa_debug
= B_TRUE
;
5738 VERIFY0(dmu_objset_own(ztest_opts
.zo_pool
,
5739 DMU_OST_ANY
, B_TRUE
, FTAG
, &os
));
5740 zs
->zs_guid
= dmu_objset_fsid_guid(os
);
5741 dmu_objset_disown(os
, FTAG
);
5743 spa
->spa_dedup_ditto
= 2 * ZIO_DEDUPDITTO_MIN
;
5746 * We don't expect the pool to suspend unless maxfaults == 0,
5747 * in which case ztest_fault_inject() temporarily takes away
5748 * the only valid replica.
5750 if (MAXFAULTS() == 0)
5751 spa
->spa_failmode
= ZIO_FAILURE_MODE_WAIT
;
5753 spa
->spa_failmode
= ZIO_FAILURE_MODE_PANIC
;
5756 * Create a thread to periodically resume suspended I/O.
5758 VERIFY3P((resume_thread
= zk_thread_create(NULL
, 0,
5759 (thread_func_t
)ztest_resume_thread
, spa
, TS_RUN
, NULL
, 0, 0,
5760 PTHREAD_CREATE_JOINABLE
)), !=, NULL
);
5764 * Set a deadman alarm to abort() if we hang.
5766 signal(SIGALRM
, ztest_deadman_alarm
);
5767 alarm((zs
->zs_thread_stop
- zs
->zs_thread_start
) / NANOSEC
+ GRACE
);
5771 * Verify that we can safely inquire about about any object,
5772 * whether it's allocated or not. To make it interesting,
5773 * we probe a 5-wide window around each power of two.
5774 * This hits all edge cases, including zero and the max.
5776 for (t
= 0; t
< 64; t
++) {
5777 for (d
= -5; d
<= 5; d
++) {
5778 error
= dmu_object_info(spa
->spa_meta_objset
,
5779 (1ULL << t
) + d
, NULL
);
5780 ASSERT(error
== 0 || error
== ENOENT
||
5786 * If we got any ENOSPC errors on the previous run, destroy something.
5788 if (zs
->zs_enospc_count
!= 0) {
5789 int d
= ztest_random(ztest_opts
.zo_datasets
);
5790 ztest_dataset_destroy(d
);
5792 zs
->zs_enospc_count
= 0;
5794 tid
= umem_zalloc(ztest_opts
.zo_threads
* sizeof (kt_did_t
),
5797 if (ztest_opts
.zo_verbose
>= 4)
5798 (void) printf("starting main threads...\n");
5801 * Kick off all the tests that run in parallel.
5803 for (t
= 0; t
< ztest_opts
.zo_threads
; t
++) {
5806 if (t
< ztest_opts
.zo_datasets
&&
5807 ztest_dataset_open(t
) != 0)
5810 VERIFY3P(thread
= zk_thread_create(NULL
, 0,
5811 (thread_func_t
)ztest_thread
,
5812 (void *)(uintptr_t)t
, TS_RUN
, NULL
, 0, 0,
5813 PTHREAD_CREATE_JOINABLE
), !=, NULL
);
5814 tid
[t
] = thread
->t_tid
;
5818 * Wait for all of the tests to complete. We go in reverse order
5819 * so we don't close datasets while threads are still using them.
5821 for (t
= ztest_opts
.zo_threads
- 1; t
>= 0; t
--) {
5822 thread_join(tid
[t
]);
5823 if (t
< ztest_opts
.zo_datasets
)
5824 ztest_dataset_close(t
);
5827 txg_wait_synced(spa_get_dsl(spa
), 0);
5829 zs
->zs_alloc
= metaslab_class_get_alloc(spa_normal_class(spa
));
5830 zs
->zs_space
= metaslab_class_get_space(spa_normal_class(spa
));
5832 if (ztest_opts
.zo_verbose
>= 3)
5833 zfs_dbgmsg_print(FTAG
);
5835 umem_free(tid
, ztest_opts
.zo_threads
* sizeof (kt_did_t
));
5837 /* Kill the resume thread */
5838 ztest_exiting
= B_TRUE
;
5839 thread_join(resume_thread
->t_tid
);
5843 * Right before closing the pool, kick off a bunch of async I/O;
5844 * spa_close() should wait for it to complete.
5846 for (object
= 1; object
< 50; object
++)
5847 dmu_prefetch(spa
->spa_meta_objset
, object
, 0, 1ULL << 20);
5849 /* Verify that at least one commit cb was called in a timely fashion */
5850 if (zc_cb_counter
>= ZTEST_COMMIT_CB_MIN_REG
)
5851 VERIFY0(zc_min_txg_delay
);
5853 spa_close(spa
, FTAG
);
5856 * Verify that we can loop over all pools.
5858 mutex_enter(&spa_namespace_lock
);
5859 for (spa
= spa_next(NULL
); spa
!= NULL
; spa
= spa_next(spa
))
5860 if (ztest_opts
.zo_verbose
> 3)
5861 (void) printf("spa_next: found %s\n", spa_name(spa
));
5862 mutex_exit(&spa_namespace_lock
);
5865 * Verify that we can export the pool and reimport it under a
5868 if (ztest_random(2) == 0) {
5869 char name
[MAXNAMELEN
];
5870 (void) snprintf(name
, MAXNAMELEN
, "%s_import",
5871 ztest_opts
.zo_pool
);
5872 ztest_spa_import_export(ztest_opts
.zo_pool
, name
);
5873 ztest_spa_import_export(name
, ztest_opts
.zo_pool
);
5878 list_destroy(&zcl
.zcl_callbacks
);
5879 mutex_destroy(&zcl
.zcl_callbacks_lock
);
5880 rw_destroy(&ztest_name_lock
);
5881 mutex_destroy(&ztest_vdev_lock
);
5887 ztest_ds_t
*zd
= &ztest_ds
[0];
5891 if (ztest_opts
.zo_verbose
>= 3)
5892 (void) printf("testing spa_freeze()...\n");
5894 kernel_init(FREAD
| FWRITE
);
5895 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
5896 VERIFY3U(0, ==, ztest_dataset_open(0));
5897 spa
->spa_debug
= B_TRUE
;
5901 * Force the first log block to be transactionally allocated.
5902 * We have to do this before we freeze the pool -- otherwise
5903 * the log chain won't be anchored.
5905 while (BP_IS_HOLE(&zd
->zd_zilog
->zl_header
->zh_log
)) {
5906 ztest_dmu_object_alloc_free(zd
, 0);
5907 zil_commit(zd
->zd_zilog
, 0);
5910 txg_wait_synced(spa_get_dsl(spa
), 0);
5913 * Freeze the pool. This stops spa_sync() from doing anything,
5914 * so that the only way to record changes from now on is the ZIL.
5919 * Run tests that generate log records but don't alter the pool config
5920 * or depend on DSL sync tasks (snapshots, objset create/destroy, etc).
5921 * We do a txg_wait_synced() after each iteration to force the txg
5922 * to increase well beyond the last synced value in the uberblock.
5923 * The ZIL should be OK with that.
5925 while (ztest_random(10) != 0 &&
5926 numloops
++ < ztest_opts
.zo_maxloops
) {
5927 ztest_dmu_write_parallel(zd
, 0);
5928 ztest_dmu_object_alloc_free(zd
, 0);
5929 txg_wait_synced(spa_get_dsl(spa
), 0);
5933 * Commit all of the changes we just generated.
5935 zil_commit(zd
->zd_zilog
, 0);
5936 txg_wait_synced(spa_get_dsl(spa
), 0);
5939 * Close our dataset and close the pool.
5941 ztest_dataset_close(0);
5942 spa_close(spa
, FTAG
);
5946 * Open and close the pool and dataset to induce log replay.
5948 kernel_init(FREAD
| FWRITE
);
5949 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
5950 ASSERT(spa_freeze_txg(spa
) == UINT64_MAX
);
5951 VERIFY3U(0, ==, ztest_dataset_open(0));
5952 ztest_dataset_close(0);
5954 spa
->spa_debug
= B_TRUE
;
5956 txg_wait_synced(spa_get_dsl(spa
), 0);
5957 ztest_reguid(NULL
, 0);
5959 spa_close(spa
, FTAG
);
5964 print_time(hrtime_t t
, char *timebuf
)
5966 hrtime_t s
= t
/ NANOSEC
;
5967 hrtime_t m
= s
/ 60;
5968 hrtime_t h
= m
/ 60;
5969 hrtime_t d
= h
/ 24;
5978 (void) sprintf(timebuf
,
5979 "%llud%02lluh%02llum%02llus", d
, h
, m
, s
);
5981 (void) sprintf(timebuf
, "%lluh%02llum%02llus", h
, m
, s
);
5983 (void) sprintf(timebuf
, "%llum%02llus", m
, s
);
5985 (void) sprintf(timebuf
, "%llus", s
);
5989 make_random_props(void)
5993 VERIFY(nvlist_alloc(&props
, NV_UNIQUE_NAME
, 0) == 0);
5994 if (ztest_random(2) == 0)
5996 VERIFY(nvlist_add_uint64(props
, "autoreplace", 1) == 0);
6002 * Create a storage pool with the given name and initial vdev size.
6003 * Then test spa_freeze() functionality.
6006 ztest_init(ztest_shared_t
*zs
)
6009 nvlist_t
*nvroot
, *props
;
6012 mutex_init(&ztest_vdev_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
6013 rw_init(&ztest_name_lock
, NULL
, RW_DEFAULT
, NULL
);
6015 kernel_init(FREAD
| FWRITE
);
6018 * Create the storage pool.
6020 (void) spa_destroy(ztest_opts
.zo_pool
);
6021 ztest_shared
->zs_vdev_next_leaf
= 0;
6023 zs
->zs_mirrors
= ztest_opts
.zo_mirrors
;
6024 nvroot
= make_vdev_root(NULL
, NULL
, NULL
, ztest_opts
.zo_vdev_size
, 0,
6025 0, ztest_opts
.zo_raidz
, zs
->zs_mirrors
, 1);
6026 props
= make_random_props();
6027 for (i
= 0; i
< SPA_FEATURES
; i
++) {
6029 VERIFY3S(-1, !=, asprintf(&buf
, "feature@%s",
6030 spa_feature_table
[i
].fi_uname
));
6031 VERIFY3U(0, ==, nvlist_add_uint64(props
, buf
, 0));
6034 VERIFY3U(0, ==, spa_create(ztest_opts
.zo_pool
, nvroot
, props
, NULL
));
6035 nvlist_free(nvroot
);
6037 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
6038 zs
->zs_metaslab_sz
=
6039 1ULL << spa
->spa_root_vdev
->vdev_child
[0]->vdev_ms_shift
;
6040 spa_close(spa
, FTAG
);
6044 ztest_run_zdb(ztest_opts
.zo_pool
);
6048 ztest_run_zdb(ztest_opts
.zo_pool
);
6050 rw_destroy(&ztest_name_lock
);
6051 mutex_destroy(&ztest_vdev_lock
);
6057 static char ztest_name_data
[] = "/tmp/ztest.data.XXXXXX";
6059 ztest_fd_data
= mkstemp(ztest_name_data
);
6060 ASSERT3S(ztest_fd_data
, >=, 0);
6061 (void) unlink(ztest_name_data
);
6065 shared_data_size(ztest_shared_hdr_t
*hdr
)
6069 size
= hdr
->zh_hdr_size
;
6070 size
+= hdr
->zh_opts_size
;
6071 size
+= hdr
->zh_size
;
6072 size
+= hdr
->zh_stats_size
* hdr
->zh_stats_count
;
6073 size
+= hdr
->zh_ds_size
* hdr
->zh_ds_count
;
6082 ztest_shared_hdr_t
*hdr
;
6084 hdr
= (void *)mmap(0, P2ROUNDUP(sizeof (*hdr
), getpagesize()),
6085 PROT_READ
| PROT_WRITE
, MAP_SHARED
, ztest_fd_data
, 0);
6086 ASSERT(hdr
!= MAP_FAILED
);
6088 VERIFY3U(0, ==, ftruncate(ztest_fd_data
, sizeof (ztest_shared_hdr_t
)));
6090 hdr
->zh_hdr_size
= sizeof (ztest_shared_hdr_t
);
6091 hdr
->zh_opts_size
= sizeof (ztest_shared_opts_t
);
6092 hdr
->zh_size
= sizeof (ztest_shared_t
);
6093 hdr
->zh_stats_size
= sizeof (ztest_shared_callstate_t
);
6094 hdr
->zh_stats_count
= ZTEST_FUNCS
;
6095 hdr
->zh_ds_size
= sizeof (ztest_shared_ds_t
);
6096 hdr
->zh_ds_count
= ztest_opts
.zo_datasets
;
6098 size
= shared_data_size(hdr
);
6099 VERIFY3U(0, ==, ftruncate(ztest_fd_data
, size
));
6101 (void) munmap((caddr_t
)hdr
, P2ROUNDUP(sizeof (*hdr
), getpagesize()));
6108 ztest_shared_hdr_t
*hdr
;
6111 hdr
= (void *)mmap(0, P2ROUNDUP(sizeof (*hdr
), getpagesize()),
6112 PROT_READ
, MAP_SHARED
, ztest_fd_data
, 0);
6113 ASSERT(hdr
!= MAP_FAILED
);
6115 size
= shared_data_size(hdr
);
6117 (void) munmap((caddr_t
)hdr
, P2ROUNDUP(sizeof (*hdr
), getpagesize()));
6118 hdr
= ztest_shared_hdr
= (void *)mmap(0, P2ROUNDUP(size
, getpagesize()),
6119 PROT_READ
| PROT_WRITE
, MAP_SHARED
, ztest_fd_data
, 0);
6120 ASSERT(hdr
!= MAP_FAILED
);
6121 buf
= (uint8_t *)hdr
;
6123 offset
= hdr
->zh_hdr_size
;
6124 ztest_shared_opts
= (void *)&buf
[offset
];
6125 offset
+= hdr
->zh_opts_size
;
6126 ztest_shared
= (void *)&buf
[offset
];
6127 offset
+= hdr
->zh_size
;
6128 ztest_shared_callstate
= (void *)&buf
[offset
];
6129 offset
+= hdr
->zh_stats_size
* hdr
->zh_stats_count
;
6130 ztest_shared_ds
= (void *)&buf
[offset
];
6134 exec_child(char *cmd
, char *libpath
, boolean_t ignorekill
, int *statusp
)
6138 char *cmdbuf
= NULL
;
6143 cmdbuf
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
6144 (void) strlcpy(cmdbuf
, getexecname(), MAXPATHLEN
);
6149 fatal(1, "fork failed");
6151 if (pid
== 0) { /* child */
6152 char *emptyargv
[2] = { cmd
, NULL
};
6153 char fd_data_str
[12];
6155 struct rlimit rl
= { 1024, 1024 };
6156 (void) setrlimit(RLIMIT_NOFILE
, &rl
);
6158 (void) close(ztest_fd_rand
);
6159 VERIFY(11 >= snprintf(fd_data_str
, 12, "%d", ztest_fd_data
));
6160 VERIFY(0 == setenv("ZTEST_FD_DATA", fd_data_str
, 1));
6162 (void) enable_extended_FILE_stdio(-1, -1);
6163 if (libpath
!= NULL
)
6164 VERIFY(0 == setenv("LD_LIBRARY_PATH", libpath
, 1));
6165 (void) execv(cmd
, emptyargv
);
6166 ztest_dump_core
= B_FALSE
;
6167 fatal(B_TRUE
, "exec failed: %s", cmd
);
6170 if (cmdbuf
!= NULL
) {
6171 umem_free(cmdbuf
, MAXPATHLEN
);
6175 while (waitpid(pid
, &status
, 0) != pid
)
6177 if (statusp
!= NULL
)
6180 if (WIFEXITED(status
)) {
6181 if (WEXITSTATUS(status
) != 0) {
6182 (void) fprintf(stderr
, "child exited with code %d\n",
6183 WEXITSTATUS(status
));
6187 } else if (WIFSIGNALED(status
)) {
6188 if (!ignorekill
|| WTERMSIG(status
) != SIGKILL
) {
6189 (void) fprintf(stderr
, "child died with signal %d\n",
6195 (void) fprintf(stderr
, "something strange happened to child\n");
6202 ztest_run_init(void)
6206 ztest_shared_t
*zs
= ztest_shared
;
6208 ASSERT(ztest_opts
.zo_init
!= 0);
6211 * Blow away any existing copy of zpool.cache
6213 (void) remove(spa_config_path
);
6216 * Create and initialize our storage pool.
6218 for (i
= 1; i
<= ztest_opts
.zo_init
; i
++) {
6219 bzero(zs
, sizeof (ztest_shared_t
));
6220 if (ztest_opts
.zo_verbose
>= 3 &&
6221 ztest_opts
.zo_init
!= 1) {
6222 (void) printf("ztest_init(), pass %d\n", i
);
6229 main(int argc
, char **argv
)
6237 ztest_shared_callstate_t
*zc
;
6244 char *fd_data_str
= getenv("ZTEST_FD_DATA");
6246 (void) setvbuf(stdout
, NULL
, _IOLBF
, 0);
6248 dprintf_setup(&argc
, argv
);
6250 ztest_fd_rand
= open("/dev/urandom", O_RDONLY
);
6251 ASSERT3S(ztest_fd_rand
, >=, 0);
6254 process_options(argc
, argv
);
6259 bcopy(&ztest_opts
, ztest_shared_opts
,
6260 sizeof (*ztest_shared_opts
));
6262 ztest_fd_data
= atoi(fd_data_str
);
6264 bcopy(ztest_shared_opts
, &ztest_opts
, sizeof (ztest_opts
));
6266 ASSERT3U(ztest_opts
.zo_datasets
, ==, ztest_shared_hdr
->zh_ds_count
);
6268 /* Override location of zpool.cache */
6269 VERIFY(asprintf((char **)&spa_config_path
, "%s/zpool.cache",
6270 ztest_opts
.zo_dir
) != -1);
6272 ztest_ds
= umem_alloc(ztest_opts
.zo_datasets
* sizeof (ztest_ds_t
),
6277 metaslab_gang_bang
= ztest_opts
.zo_metaslab_gang_bang
;
6278 metaslab_df_alloc_threshold
=
6279 zs
->zs_metaslab_df_alloc_threshold
;
6288 hasalt
= (strlen(ztest_opts
.zo_alt_ztest
) != 0);
6290 if (ztest_opts
.zo_verbose
>= 1) {
6291 (void) printf("%llu vdevs, %d datasets, %d threads,"
6292 " %llu seconds...\n",
6293 (u_longlong_t
)ztest_opts
.zo_vdevs
,
6294 ztest_opts
.zo_datasets
,
6295 ztest_opts
.zo_threads
,
6296 (u_longlong_t
)ztest_opts
.zo_time
);
6299 cmd
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
6300 (void) strlcpy(cmd
, getexecname(), MAXNAMELEN
);
6302 zs
->zs_do_init
= B_TRUE
;
6303 if (strlen(ztest_opts
.zo_alt_ztest
) != 0) {
6304 if (ztest_opts
.zo_verbose
>= 1) {
6305 (void) printf("Executing older ztest for "
6306 "initialization: %s\n", ztest_opts
.zo_alt_ztest
);
6308 VERIFY(!exec_child(ztest_opts
.zo_alt_ztest
,
6309 ztest_opts
.zo_alt_libpath
, B_FALSE
, NULL
));
6311 VERIFY(!exec_child(NULL
, NULL
, B_FALSE
, NULL
));
6313 zs
->zs_do_init
= B_FALSE
;
6315 zs
->zs_proc_start
= gethrtime();
6316 zs
->zs_proc_stop
= zs
->zs_proc_start
+ ztest_opts
.zo_time
* NANOSEC
;
6318 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
6319 zi
= &ztest_info
[f
];
6320 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6321 if (zs
->zs_proc_start
+ zi
->zi_interval
[0] > zs
->zs_proc_stop
)
6322 zc
->zc_next
= UINT64_MAX
;
6324 zc
->zc_next
= zs
->zs_proc_start
+
6325 ztest_random(2 * zi
->zi_interval
[0] + 1);
6329 * Run the tests in a loop. These tests include fault injection
6330 * to verify that self-healing data works, and forced crashes
6331 * to verify that we never lose on-disk consistency.
6333 while (gethrtime() < zs
->zs_proc_stop
) {
6338 * Initialize the workload counters for each function.
6340 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
6341 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6346 /* Set the allocation switch size */
6347 zs
->zs_metaslab_df_alloc_threshold
=
6348 ztest_random(zs
->zs_metaslab_sz
/ 4) + 1;
6350 if (!hasalt
|| ztest_random(2) == 0) {
6351 if (hasalt
&& ztest_opts
.zo_verbose
>= 1) {
6352 (void) printf("Executing newer ztest: %s\n",
6356 killed
= exec_child(cmd
, NULL
, B_TRUE
, &status
);
6358 if (hasalt
&& ztest_opts
.zo_verbose
>= 1) {
6359 (void) printf("Executing older ztest: %s\n",
6360 ztest_opts
.zo_alt_ztest
);
6363 killed
= exec_child(ztest_opts
.zo_alt_ztest
,
6364 ztest_opts
.zo_alt_libpath
, B_TRUE
, &status
);
6371 if (ztest_opts
.zo_verbose
>= 1) {
6372 hrtime_t now
= gethrtime();
6374 now
= MIN(now
, zs
->zs_proc_stop
);
6375 print_time(zs
->zs_proc_stop
- now
, timebuf
);
6376 nicenum(zs
->zs_space
, numbuf
);
6378 (void) printf("Pass %3d, %8s, %3llu ENOSPC, "
6379 "%4.1f%% of %5s used, %3.0f%% done, %8s to go\n",
6381 WIFEXITED(status
) ? "Complete" : "SIGKILL",
6382 (u_longlong_t
)zs
->zs_enospc_count
,
6383 100.0 * zs
->zs_alloc
/ zs
->zs_space
,
6385 100.0 * (now
- zs
->zs_proc_start
) /
6386 (ztest_opts
.zo_time
* NANOSEC
), timebuf
);
6389 if (ztest_opts
.zo_verbose
>= 2) {
6390 (void) printf("\nWorkload summary:\n\n");
6391 (void) printf("%7s %9s %s\n",
6392 "Calls", "Time", "Function");
6393 (void) printf("%7s %9s %s\n",
6394 "-----", "----", "--------");
6395 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
6398 zi
= &ztest_info
[f
];
6399 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6400 print_time(zc
->zc_time
, timebuf
);
6401 (void) dladdr((void *)zi
->zi_func
, &dli
);
6402 (void) printf("%7llu %9s %s\n",
6403 (u_longlong_t
)zc
->zc_count
, timebuf
,
6406 (void) printf("\n");
6410 * It's possible that we killed a child during a rename test,
6411 * in which case we'll have a 'ztest_tmp' pool lying around
6412 * instead of 'ztest'. Do a blind rename in case this happened.
6415 if (spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
) == 0) {
6416 spa_close(spa
, FTAG
);
6418 char tmpname
[MAXNAMELEN
];
6420 kernel_init(FREAD
| FWRITE
);
6421 (void) snprintf(tmpname
, sizeof (tmpname
), "%s_tmp",
6422 ztest_opts
.zo_pool
);
6423 (void) spa_rename(tmpname
, ztest_opts
.zo_pool
);
6427 ztest_run_zdb(ztest_opts
.zo_pool
);
6430 if (ztest_opts
.zo_verbose
>= 1) {
6432 (void) printf("%d runs of older ztest: %s\n", older
,
6433 ztest_opts
.zo_alt_ztest
);
6434 (void) printf("%d runs of newer ztest: %s\n", newer
,
6437 (void) printf("%d killed, %d completed, %.0f%% kill rate\n",
6438 kills
, iters
- kills
, (100.0 * kills
) / MAX(1, iters
));
6441 umem_free(cmd
, MAXNAMELEN
);