4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 * Copyright (c) 2011, 2015 by Delphix. All rights reserved.
24 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
25 * Copyright (c) 2013 Steven Hartland. All rights reserved.
29 * The objective of this program is to provide a DMU/ZAP/SPA stress test
30 * that runs entirely in userland, is easy to use, and easy to extend.
32 * The overall design of the ztest program is as follows:
34 * (1) For each major functional area (e.g. adding vdevs to a pool,
35 * creating and destroying datasets, reading and writing objects, etc)
36 * we have a simple routine to test that functionality. These
37 * individual routines do not have to do anything "stressful".
39 * (2) We turn these simple functionality tests into a stress test by
40 * running them all in parallel, with as many threads as desired,
41 * and spread across as many datasets, objects, and vdevs as desired.
43 * (3) While all this is happening, we inject faults into the pool to
44 * verify that self-healing data really works.
46 * (4) Every time we open a dataset, we change its checksum and compression
47 * functions. Thus even individual objects vary from block to block
48 * in which checksum they use and whether they're compressed.
50 * (5) To verify that we never lose on-disk consistency after a crash,
51 * we run the entire test in a child of the main process.
52 * At random times, the child self-immolates with a SIGKILL.
53 * This is the software equivalent of pulling the power cord.
54 * The parent then runs the test again, using the existing
55 * storage pool, as many times as desired. If backwards compatibility
56 * testing is enabled ztest will sometimes run the "older" version
57 * of ztest after a SIGKILL.
59 * (6) To verify that we don't have future leaks or temporal incursions,
60 * many of the functional tests record the transaction group number
61 * as part of their data. When reading old data, they verify that
62 * the transaction group number is less than the current, open txg.
63 * If you add a new test, please do this if applicable.
65 * (7) Threads are created with a reduced stack size, for sanity checking.
66 * Therefore, it's important not to allocate huge buffers on the stack.
68 * When run with no arguments, ztest runs for about five minutes and
69 * produces no output if successful. To get a little bit of information,
70 * specify -V. To get more information, specify -VV, and so on.
72 * To turn this into an overnight stress test, use -T to specify run time.
74 * You can ask more more vdevs [-v], datasets [-d], or threads [-t]
75 * to increase the pool capacity, fanout, and overall stress level.
77 * Use the -k option to set the desired frequency of kills.
79 * When ztest invokes itself it passes all relevant information through a
80 * temporary file which is mmap-ed in the child process. This allows shared
81 * memory to survive the exec syscall. The ztest_shared_hdr_t struct is always
82 * stored at offset 0 of this file and contains information on the size and
83 * number of shared structures in the file. The information stored in this file
84 * must remain backwards compatible with older versions of ztest so that
85 * ztest can invoke them during backwards compatibility testing (-B).
88 #include <sys/zfs_context.h>
94 #include <sys/dmu_objset.h>
100 #include <sys/resource.h>
103 #include <sys/zil_impl.h>
104 #include <sys/zfs_rlock.h>
105 #include <sys/vdev_impl.h>
106 #include <sys/vdev_file.h>
107 #include <sys/spa_impl.h>
108 #include <sys/metaslab_impl.h>
109 #include <sys/dsl_prop.h>
110 #include <sys/dsl_dataset.h>
111 #include <sys/dsl_destroy.h>
112 #include <sys/dsl_scan.h>
113 #include <sys/zio_checksum.h>
114 #include <sys/refcount.h>
115 #include <sys/zfeature.h>
116 #include <sys/dsl_userhold.h>
118 #include <stdio_ext.h>
125 #include <sys/fs/zfs.h>
126 #include <zfs_fletcher.h>
127 #include <libnvpair.h>
129 #include <execinfo.h> /* for backtrace() */
132 static int ztest_fd_data
= -1;
133 static int ztest_fd_rand
= -1;
135 typedef struct ztest_shared_hdr
{
136 uint64_t zh_hdr_size
;
137 uint64_t zh_opts_size
;
139 uint64_t zh_stats_size
;
140 uint64_t zh_stats_count
;
142 uint64_t zh_ds_count
;
143 } ztest_shared_hdr_t
;
145 static ztest_shared_hdr_t
*ztest_shared_hdr
;
147 typedef struct ztest_shared_opts
{
148 char zo_pool
[MAXNAMELEN
];
149 char zo_dir
[MAXNAMELEN
];
150 char zo_alt_ztest
[MAXNAMELEN
];
151 char zo_alt_libpath
[MAXNAMELEN
];
153 uint64_t zo_vdevtime
;
161 uint64_t zo_passtime
;
162 uint64_t zo_killrate
;
166 uint64_t zo_maxloops
;
167 uint64_t zo_metaslab_gang_bang
;
168 } ztest_shared_opts_t
;
170 static const ztest_shared_opts_t ztest_opts_defaults
= {
171 .zo_pool
= { 'z', 't', 'e', 's', 't', '\0' },
172 .zo_dir
= { '/', 't', 'm', 'p', '\0' },
173 .zo_alt_ztest
= { '\0' },
174 .zo_alt_libpath
= { '\0' },
176 .zo_ashift
= SPA_MINBLOCKSHIFT
,
179 .zo_raidz_parity
= 1,
180 .zo_vdev_size
= SPA_MINDEVSIZE
* 2,
183 .zo_passtime
= 60, /* 60 seconds */
184 .zo_killrate
= 70, /* 70% kill rate */
187 .zo_time
= 300, /* 5 minutes */
188 .zo_maxloops
= 50, /* max loops during spa_freeze() */
189 .zo_metaslab_gang_bang
= 32 << 10
192 extern uint64_t metaslab_gang_bang
;
193 extern uint64_t metaslab_df_alloc_threshold
;
194 extern int metaslab_preload_limit
;
196 static ztest_shared_opts_t
*ztest_shared_opts
;
197 static ztest_shared_opts_t ztest_opts
;
199 typedef struct ztest_shared_ds
{
203 static ztest_shared_ds_t
*ztest_shared_ds
;
204 #define ZTEST_GET_SHARED_DS(d) (&ztest_shared_ds[d])
206 #define BT_MAGIC 0x123456789abcdefULL
207 #define MAXFAULTS() \
208 (MAX(zs->zs_mirrors, 1) * (ztest_opts.zo_raidz_parity + 1) - 1)
212 ZTEST_IO_WRITE_PATTERN
,
213 ZTEST_IO_WRITE_ZEROES
,
220 typedef struct ztest_block_tag
{
224 uint64_t bt_dnodesize
;
231 typedef struct bufwad
{
249 #define ZTEST_RANGE_LOCKS 64
250 #define ZTEST_OBJECT_LOCKS 64
253 * Object descriptor. Used as a template for object lookup/create/remove.
255 typedef struct ztest_od
{
258 dmu_object_type_t od_type
;
259 dmu_object_type_t od_crtype
;
260 uint64_t od_blocksize
;
261 uint64_t od_crblocksize
;
262 uint64_t od_crdnodesize
;
265 char od_name
[MAXNAMELEN
];
271 typedef struct ztest_ds
{
272 ztest_shared_ds_t
*zd_shared
;
274 rwlock_t zd_zilog_lock
;
276 ztest_od_t
*zd_od
; /* debugging aid */
277 char zd_name
[MAXNAMELEN
];
278 kmutex_t zd_dirobj_lock
;
279 rll_t zd_object_lock
[ZTEST_OBJECT_LOCKS
];
280 zll_t zd_range_lock
[ZTEST_RANGE_LOCKS
];
284 * Per-iteration state.
286 typedef void ztest_func_t(ztest_ds_t
*zd
, uint64_t id
);
288 typedef struct ztest_info
{
289 ztest_func_t
*zi_func
; /* test function */
290 uint64_t zi_iters
; /* iterations per execution */
291 uint64_t *zi_interval
; /* execute every <interval> seconds */
292 const char *zi_funcname
; /* name of test function */
295 typedef struct ztest_shared_callstate
{
296 uint64_t zc_count
; /* per-pass count */
297 uint64_t zc_time
; /* per-pass time */
298 uint64_t zc_next
; /* next time to call this function */
299 } ztest_shared_callstate_t
;
301 static ztest_shared_callstate_t
*ztest_shared_callstate
;
302 #define ZTEST_GET_SHARED_CALLSTATE(c) (&ztest_shared_callstate[c])
304 ztest_func_t ztest_dmu_read_write
;
305 ztest_func_t ztest_dmu_write_parallel
;
306 ztest_func_t ztest_dmu_object_alloc_free
;
307 ztest_func_t ztest_dmu_commit_callbacks
;
308 ztest_func_t ztest_zap
;
309 ztest_func_t ztest_zap_parallel
;
310 ztest_func_t ztest_zil_commit
;
311 ztest_func_t ztest_zil_remount
;
312 ztest_func_t ztest_dmu_read_write_zcopy
;
313 ztest_func_t ztest_dmu_objset_create_destroy
;
314 ztest_func_t ztest_dmu_prealloc
;
315 ztest_func_t ztest_fzap
;
316 ztest_func_t ztest_dmu_snapshot_create_destroy
;
317 ztest_func_t ztest_dsl_prop_get_set
;
318 ztest_func_t ztest_spa_prop_get_set
;
319 ztest_func_t ztest_spa_create_destroy
;
320 ztest_func_t ztest_fault_inject
;
321 ztest_func_t ztest_ddt_repair
;
322 ztest_func_t ztest_dmu_snapshot_hold
;
323 ztest_func_t ztest_spa_rename
;
324 ztest_func_t ztest_scrub
;
325 ztest_func_t ztest_dsl_dataset_promote_busy
;
326 ztest_func_t ztest_vdev_attach_detach
;
327 ztest_func_t ztest_vdev_LUN_growth
;
328 ztest_func_t ztest_vdev_add_remove
;
329 ztest_func_t ztest_vdev_aux_add_remove
;
330 ztest_func_t ztest_split_pool
;
331 ztest_func_t ztest_reguid
;
332 ztest_func_t ztest_spa_upgrade
;
333 ztest_func_t ztest_fletcher
;
334 ztest_func_t ztest_verify_dnode_bt
;
336 uint64_t zopt_always
= 0ULL * NANOSEC
; /* all the time */
337 uint64_t zopt_incessant
= 1ULL * NANOSEC
/ 10; /* every 1/10 second */
338 uint64_t zopt_often
= 1ULL * NANOSEC
; /* every second */
339 uint64_t zopt_sometimes
= 10ULL * NANOSEC
; /* every 10 seconds */
340 uint64_t zopt_rarely
= 60ULL * NANOSEC
; /* every 60 seconds */
342 #define ZTI_INIT(func, iters, interval) \
343 { .zi_func = (func), \
344 .zi_iters = (iters), \
345 .zi_interval = (interval), \
346 .zi_funcname = # func }
348 ztest_info_t ztest_info
[] = {
349 ZTI_INIT(ztest_dmu_read_write
, 1, &zopt_always
),
350 ZTI_INIT(ztest_dmu_write_parallel
, 10, &zopt_always
),
351 ZTI_INIT(ztest_dmu_object_alloc_free
, 1, &zopt_always
),
352 ZTI_INIT(ztest_dmu_commit_callbacks
, 1, &zopt_always
),
353 ZTI_INIT(ztest_zap
, 30, &zopt_always
),
354 ZTI_INIT(ztest_zap_parallel
, 100, &zopt_always
),
355 ZTI_INIT(ztest_split_pool
, 1, &zopt_always
),
356 ZTI_INIT(ztest_zil_commit
, 1, &zopt_incessant
),
357 ZTI_INIT(ztest_zil_remount
, 1, &zopt_sometimes
),
358 ZTI_INIT(ztest_dmu_read_write_zcopy
, 1, &zopt_often
),
359 ZTI_INIT(ztest_dmu_objset_create_destroy
, 1, &zopt_often
),
360 ZTI_INIT(ztest_dsl_prop_get_set
, 1, &zopt_often
),
361 ZTI_INIT(ztest_spa_prop_get_set
, 1, &zopt_sometimes
),
363 ZTI_INIT(ztest_dmu_prealloc
, 1, &zopt_sometimes
),
365 ZTI_INIT(ztest_fzap
, 1, &zopt_sometimes
),
366 ZTI_INIT(ztest_dmu_snapshot_create_destroy
, 1, &zopt_sometimes
),
367 ZTI_INIT(ztest_spa_create_destroy
, 1, &zopt_sometimes
),
368 ZTI_INIT(ztest_fault_inject
, 1, &zopt_sometimes
),
369 ZTI_INIT(ztest_ddt_repair
, 1, &zopt_sometimes
),
370 ZTI_INIT(ztest_dmu_snapshot_hold
, 1, &zopt_sometimes
),
371 ZTI_INIT(ztest_reguid
, 1, &zopt_rarely
),
372 ZTI_INIT(ztest_spa_rename
, 1, &zopt_rarely
),
373 ZTI_INIT(ztest_scrub
, 1, &zopt_rarely
),
374 ZTI_INIT(ztest_spa_upgrade
, 1, &zopt_rarely
),
375 ZTI_INIT(ztest_dsl_dataset_promote_busy
, 1, &zopt_rarely
),
376 ZTI_INIT(ztest_vdev_attach_detach
, 1, &zopt_sometimes
),
377 ZTI_INIT(ztest_vdev_LUN_growth
, 1, &zopt_rarely
),
378 ZTI_INIT(ztest_vdev_add_remove
, 1, &ztest_opts
.zo_vdevtime
),
379 ZTI_INIT(ztest_vdev_aux_add_remove
, 1, &ztest_opts
.zo_vdevtime
),
380 ZTI_INIT(ztest_fletcher
, 1, &zopt_rarely
),
381 ZTI_INIT(ztest_verify_dnode_bt
, 1, &zopt_sometimes
),
384 #define ZTEST_FUNCS (sizeof (ztest_info) / sizeof (ztest_info_t))
387 * The following struct is used to hold a list of uncalled commit callbacks.
388 * The callbacks are ordered by txg number.
390 typedef struct ztest_cb_list
{
391 kmutex_t zcl_callbacks_lock
;
392 list_t zcl_callbacks
;
396 * Stuff we need to share writably between parent and child.
398 typedef struct ztest_shared
{
399 boolean_t zs_do_init
;
400 hrtime_t zs_proc_start
;
401 hrtime_t zs_proc_stop
;
402 hrtime_t zs_thread_start
;
403 hrtime_t zs_thread_stop
;
404 hrtime_t zs_thread_kill
;
405 uint64_t zs_enospc_count
;
406 uint64_t zs_vdev_next_leaf
;
407 uint64_t zs_vdev_aux
;
412 uint64_t zs_metaslab_sz
;
413 uint64_t zs_metaslab_df_alloc_threshold
;
417 #define ID_PARALLEL -1ULL
419 static char ztest_dev_template
[] = "%s/%s.%llua";
420 static char ztest_aux_template
[] = "%s/%s.%s.%llu";
421 ztest_shared_t
*ztest_shared
;
423 static spa_t
*ztest_spa
= NULL
;
424 static ztest_ds_t
*ztest_ds
;
426 static kmutex_t ztest_vdev_lock
;
429 * The ztest_name_lock protects the pool and dataset namespace used by
430 * the individual tests. To modify the namespace, consumers must grab
431 * this lock as writer. Grabbing the lock as reader will ensure that the
432 * namespace does not change while the lock is held.
434 static rwlock_t ztest_name_lock
;
436 static boolean_t ztest_dump_core
= B_TRUE
;
437 static boolean_t ztest_exiting
;
439 /* Global commit callback list */
440 static ztest_cb_list_t zcl
;
441 /* Commit cb delay */
442 static uint64_t zc_min_txg_delay
= UINT64_MAX
;
443 static int zc_cb_counter
= 0;
446 * Minimum number of commit callbacks that need to be registered for us to check
447 * whether the minimum txg delay is acceptable.
449 #define ZTEST_COMMIT_CB_MIN_REG 100
452 * If a number of txgs equal to this threshold have been created after a commit
453 * callback has been registered but not called, then we assume there is an
454 * implementation bug.
456 #define ZTEST_COMMIT_CB_THRESH (TXG_CONCURRENT_STATES + 1000)
458 extern uint64_t metaslab_gang_bang
;
459 extern uint64_t metaslab_df_alloc_threshold
;
462 ZTEST_META_DNODE
= 0,
467 static void usage(boolean_t
) __NORETURN
;
470 * These libumem hooks provide a reasonable set of defaults for the allocator's
471 * debugging facilities.
474 _umem_debug_init(void)
476 return ("default,verbose"); /* $UMEM_DEBUG setting */
480 _umem_logging_init(void)
482 return ("fail,contents"); /* $UMEM_LOGGING setting */
485 #define BACKTRACE_SZ 100
487 static void sig_handler(int signo
)
489 struct sigaction action
;
490 #ifdef __GLIBC__ /* backtrace() is a GNU extension */
492 void *buffer
[BACKTRACE_SZ
];
494 nptrs
= backtrace(buffer
, BACKTRACE_SZ
);
495 backtrace_symbols_fd(buffer
, nptrs
, STDERR_FILENO
);
499 * Restore default action and re-raise signal so SIGSEGV and
500 * SIGABRT can trigger a core dump.
502 action
.sa_handler
= SIG_DFL
;
503 sigemptyset(&action
.sa_mask
);
505 (void) sigaction(signo
, &action
, NULL
);
509 #define FATAL_MSG_SZ 1024
514 fatal(int do_perror
, char *message
, ...)
517 int save_errno
= errno
;
520 (void) fflush(stdout
);
521 buf
= umem_alloc(FATAL_MSG_SZ
, UMEM_NOFAIL
);
523 va_start(args
, message
);
524 (void) sprintf(buf
, "ztest: ");
526 (void) vsprintf(buf
+ strlen(buf
), message
, args
);
529 (void) snprintf(buf
+ strlen(buf
), FATAL_MSG_SZ
- strlen(buf
),
530 ": %s", strerror(save_errno
));
532 (void) fprintf(stderr
, "%s\n", buf
);
533 fatal_msg
= buf
; /* to ease debugging */
540 str2shift(const char *buf
)
542 const char *ends
= "BKMGTPEZ";
547 for (i
= 0; i
< strlen(ends
); i
++) {
548 if (toupper(buf
[0]) == ends
[i
])
551 if (i
== strlen(ends
)) {
552 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n",
556 if (buf
[1] == '\0' || (toupper(buf
[1]) == 'B' && buf
[2] == '\0')) {
559 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n", buf
);
565 nicenumtoull(const char *buf
)
570 val
= strtoull(buf
, &end
, 0);
572 (void) fprintf(stderr
, "ztest: bad numeric value: %s\n", buf
);
574 } else if (end
[0] == '.') {
575 double fval
= strtod(buf
, &end
);
576 fval
*= pow(2, str2shift(end
));
577 if (fval
> UINT64_MAX
) {
578 (void) fprintf(stderr
, "ztest: value too large: %s\n",
582 val
= (uint64_t)fval
;
584 int shift
= str2shift(end
);
585 if (shift
>= 64 || (val
<< shift
) >> shift
!= val
) {
586 (void) fprintf(stderr
, "ztest: value too large: %s\n",
596 usage(boolean_t requested
)
598 const ztest_shared_opts_t
*zo
= &ztest_opts_defaults
;
600 char nice_vdev_size
[10];
601 char nice_gang_bang
[10];
602 FILE *fp
= requested
? stdout
: stderr
;
604 nicenum(zo
->zo_vdev_size
, nice_vdev_size
);
605 nicenum(zo
->zo_metaslab_gang_bang
, nice_gang_bang
);
607 (void) fprintf(fp
, "Usage: %s\n"
608 "\t[-v vdevs (default: %llu)]\n"
609 "\t[-s size_of_each_vdev (default: %s)]\n"
610 "\t[-a alignment_shift (default: %d)] use 0 for random\n"
611 "\t[-m mirror_copies (default: %d)]\n"
612 "\t[-r raidz_disks (default: %d)]\n"
613 "\t[-R raidz_parity (default: %d)]\n"
614 "\t[-d datasets (default: %d)]\n"
615 "\t[-t threads (default: %d)]\n"
616 "\t[-g gang_block_threshold (default: %s)]\n"
617 "\t[-i init_count (default: %d)] initialize pool i times\n"
618 "\t[-k kill_percentage (default: %llu%%)]\n"
619 "\t[-p pool_name (default: %s)]\n"
620 "\t[-f dir (default: %s)] file directory for vdev files\n"
621 "\t[-V] verbose (use multiple times for ever more blather)\n"
622 "\t[-E] use existing pool instead of creating new one\n"
623 "\t[-T time (default: %llu sec)] total run time\n"
624 "\t[-F freezeloops (default: %llu)] max loops in spa_freeze()\n"
625 "\t[-P passtime (default: %llu sec)] time per pass\n"
626 "\t[-B alt_ztest (default: <none>)] alternate ztest path\n"
627 "\t[-h] (print help)\n"
630 (u_longlong_t
)zo
->zo_vdevs
, /* -v */
631 nice_vdev_size
, /* -s */
632 zo
->zo_ashift
, /* -a */
633 zo
->zo_mirrors
, /* -m */
634 zo
->zo_raidz
, /* -r */
635 zo
->zo_raidz_parity
, /* -R */
636 zo
->zo_datasets
, /* -d */
637 zo
->zo_threads
, /* -t */
638 nice_gang_bang
, /* -g */
639 zo
->zo_init
, /* -i */
640 (u_longlong_t
)zo
->zo_killrate
, /* -k */
641 zo
->zo_pool
, /* -p */
643 (u_longlong_t
)zo
->zo_time
, /* -T */
644 (u_longlong_t
)zo
->zo_maxloops
, /* -F */
645 (u_longlong_t
)zo
->zo_passtime
);
646 exit(requested
? 0 : 1);
650 process_options(int argc
, char **argv
)
653 ztest_shared_opts_t
*zo
= &ztest_opts
;
657 char altdir
[MAXNAMELEN
] = { 0 };
659 bcopy(&ztest_opts_defaults
, zo
, sizeof (*zo
));
661 while ((opt
= getopt(argc
, argv
,
662 "v:s:a:m:r:R:d:t:g:i:k:p:f:VET:P:hF:B:")) != EOF
) {
679 value
= nicenumtoull(optarg
);
683 zo
->zo_vdevs
= value
;
686 zo
->zo_vdev_size
= MAX(SPA_MINDEVSIZE
, value
);
689 zo
->zo_ashift
= value
;
692 zo
->zo_mirrors
= value
;
695 zo
->zo_raidz
= MAX(1, value
);
698 zo
->zo_raidz_parity
= MIN(MAX(value
, 1), 3);
701 zo
->zo_datasets
= MAX(1, value
);
704 zo
->zo_threads
= MAX(1, value
);
707 zo
->zo_metaslab_gang_bang
= MAX(SPA_MINBLOCKSIZE
<< 1,
714 zo
->zo_killrate
= value
;
717 (void) strlcpy(zo
->zo_pool
, optarg
,
718 sizeof (zo
->zo_pool
));
721 path
= realpath(optarg
, NULL
);
723 (void) fprintf(stderr
, "error: %s: %s\n",
724 optarg
, strerror(errno
));
727 (void) strlcpy(zo
->zo_dir
, path
,
728 sizeof (zo
->zo_dir
));
741 zo
->zo_passtime
= MAX(1, value
);
744 zo
->zo_maxloops
= MAX(1, value
);
747 (void) strlcpy(altdir
, optarg
, sizeof (altdir
));
759 zo
->zo_raidz_parity
= MIN(zo
->zo_raidz_parity
, zo
->zo_raidz
- 1);
762 (zo
->zo_vdevs
> 0 ? zo
->zo_time
* NANOSEC
/ zo
->zo_vdevs
:
765 if (strlen(altdir
) > 0) {
773 cmd
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
774 realaltdir
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
776 VERIFY(NULL
!= realpath(getexecname(), cmd
));
777 if (0 != access(altdir
, F_OK
)) {
778 ztest_dump_core
= B_FALSE
;
779 fatal(B_TRUE
, "invalid alternate ztest path: %s",
782 VERIFY(NULL
!= realpath(altdir
, realaltdir
));
785 * 'cmd' should be of the form "<anything>/usr/bin/<isa>/ztest".
786 * We want to extract <isa> to determine if we should use
787 * 32 or 64 bit binaries.
789 bin
= strstr(cmd
, "/usr/bin/");
790 ztest
= strstr(bin
, "/ztest");
792 isalen
= ztest
- isa
;
793 (void) snprintf(zo
->zo_alt_ztest
, sizeof (zo
->zo_alt_ztest
),
794 "%s/usr/bin/%.*s/ztest", realaltdir
, isalen
, isa
);
795 (void) snprintf(zo
->zo_alt_libpath
, sizeof (zo
->zo_alt_libpath
),
796 "%s/usr/lib/%.*s", realaltdir
, isalen
, isa
);
798 if (0 != access(zo
->zo_alt_ztest
, X_OK
)) {
799 ztest_dump_core
= B_FALSE
;
800 fatal(B_TRUE
, "invalid alternate ztest: %s",
802 } else if (0 != access(zo
->zo_alt_libpath
, X_OK
)) {
803 ztest_dump_core
= B_FALSE
;
804 fatal(B_TRUE
, "invalid alternate lib directory %s",
808 umem_free(cmd
, MAXPATHLEN
);
809 umem_free(realaltdir
, MAXPATHLEN
);
814 ztest_kill(ztest_shared_t
*zs
)
816 zs
->zs_alloc
= metaslab_class_get_alloc(spa_normal_class(ztest_spa
));
817 zs
->zs_space
= metaslab_class_get_space(spa_normal_class(ztest_spa
));
820 * Before we kill off ztest, make sure that the config is updated.
821 * See comment above spa_config_sync().
823 mutex_enter(&spa_namespace_lock
);
824 spa_config_sync(ztest_spa
, B_FALSE
, B_FALSE
);
825 mutex_exit(&spa_namespace_lock
);
827 (void) kill(getpid(), SIGKILL
);
831 ztest_random(uint64_t range
)
835 ASSERT3S(ztest_fd_rand
, >=, 0);
840 if (read(ztest_fd_rand
, &r
, sizeof (r
)) != sizeof (r
))
841 fatal(1, "short read from /dev/urandom");
848 ztest_record_enospc(const char *s
)
850 ztest_shared
->zs_enospc_count
++;
854 ztest_get_ashift(void)
856 if (ztest_opts
.zo_ashift
== 0)
857 return (SPA_MINBLOCKSHIFT
+ ztest_random(5));
858 return (ztest_opts
.zo_ashift
);
862 make_vdev_file(char *path
, char *aux
, char *pool
, size_t size
, uint64_t ashift
)
868 pathbuf
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
871 ashift
= ztest_get_ashift();
877 vdev
= ztest_shared
->zs_vdev_aux
;
878 (void) snprintf(path
, MAXPATHLEN
,
879 ztest_aux_template
, ztest_opts
.zo_dir
,
880 pool
== NULL
? ztest_opts
.zo_pool
: pool
,
883 vdev
= ztest_shared
->zs_vdev_next_leaf
++;
884 (void) snprintf(path
, MAXPATHLEN
,
885 ztest_dev_template
, ztest_opts
.zo_dir
,
886 pool
== NULL
? ztest_opts
.zo_pool
: pool
, vdev
);
891 int fd
= open(path
, O_RDWR
| O_CREAT
| O_TRUNC
, 0666);
893 fatal(1, "can't open %s", path
);
894 if (ftruncate(fd
, size
) != 0)
895 fatal(1, "can't ftruncate %s", path
);
899 VERIFY(nvlist_alloc(&file
, NV_UNIQUE_NAME
, 0) == 0);
900 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_FILE
) == 0);
901 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_PATH
, path
) == 0);
902 VERIFY(nvlist_add_uint64(file
, ZPOOL_CONFIG_ASHIFT
, ashift
) == 0);
903 umem_free(pathbuf
, MAXPATHLEN
);
909 make_vdev_raidz(char *path
, char *aux
, char *pool
, size_t size
,
910 uint64_t ashift
, int r
)
912 nvlist_t
*raidz
, **child
;
916 return (make_vdev_file(path
, aux
, pool
, size
, ashift
));
917 child
= umem_alloc(r
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
919 for (c
= 0; c
< r
; c
++)
920 child
[c
] = make_vdev_file(path
, aux
, pool
, size
, ashift
);
922 VERIFY(nvlist_alloc(&raidz
, NV_UNIQUE_NAME
, 0) == 0);
923 VERIFY(nvlist_add_string(raidz
, ZPOOL_CONFIG_TYPE
,
924 VDEV_TYPE_RAIDZ
) == 0);
925 VERIFY(nvlist_add_uint64(raidz
, ZPOOL_CONFIG_NPARITY
,
926 ztest_opts
.zo_raidz_parity
) == 0);
927 VERIFY(nvlist_add_nvlist_array(raidz
, ZPOOL_CONFIG_CHILDREN
,
930 for (c
= 0; c
< r
; c
++)
931 nvlist_free(child
[c
]);
933 umem_free(child
, r
* sizeof (nvlist_t
*));
939 make_vdev_mirror(char *path
, char *aux
, char *pool
, size_t size
,
940 uint64_t ashift
, int r
, int m
)
942 nvlist_t
*mirror
, **child
;
946 return (make_vdev_raidz(path
, aux
, pool
, size
, ashift
, r
));
948 child
= umem_alloc(m
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
950 for (c
= 0; c
< m
; c
++)
951 child
[c
] = make_vdev_raidz(path
, aux
, pool
, size
, ashift
, r
);
953 VERIFY(nvlist_alloc(&mirror
, NV_UNIQUE_NAME
, 0) == 0);
954 VERIFY(nvlist_add_string(mirror
, ZPOOL_CONFIG_TYPE
,
955 VDEV_TYPE_MIRROR
) == 0);
956 VERIFY(nvlist_add_nvlist_array(mirror
, ZPOOL_CONFIG_CHILDREN
,
959 for (c
= 0; c
< m
; c
++)
960 nvlist_free(child
[c
]);
962 umem_free(child
, m
* sizeof (nvlist_t
*));
968 make_vdev_root(char *path
, char *aux
, char *pool
, size_t size
, uint64_t ashift
,
969 int log
, int r
, int m
, int t
)
971 nvlist_t
*root
, **child
;
976 child
= umem_alloc(t
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
978 for (c
= 0; c
< t
; c
++) {
979 child
[c
] = make_vdev_mirror(path
, aux
, pool
, size
, ashift
,
981 VERIFY(nvlist_add_uint64(child
[c
], ZPOOL_CONFIG_IS_LOG
,
985 VERIFY(nvlist_alloc(&root
, NV_UNIQUE_NAME
, 0) == 0);
986 VERIFY(nvlist_add_string(root
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_ROOT
) == 0);
987 VERIFY(nvlist_add_nvlist_array(root
, aux
? aux
: ZPOOL_CONFIG_CHILDREN
,
990 for (c
= 0; c
< t
; c
++)
991 nvlist_free(child
[c
]);
993 umem_free(child
, t
* sizeof (nvlist_t
*));
999 * Find a random spa version. Returns back a random spa version in the
1000 * range [initial_version, SPA_VERSION_FEATURES].
1003 ztest_random_spa_version(uint64_t initial_version
)
1005 uint64_t version
= initial_version
;
1007 if (version
<= SPA_VERSION_BEFORE_FEATURES
) {
1009 ztest_random(SPA_VERSION_BEFORE_FEATURES
- version
+ 1);
1012 if (version
> SPA_VERSION_BEFORE_FEATURES
)
1013 version
= SPA_VERSION_FEATURES
;
1015 ASSERT(SPA_VERSION_IS_SUPPORTED(version
));
1020 ztest_random_blocksize(void)
1023 * Choose a block size >= the ashift.
1024 * If the SPA supports new MAXBLOCKSIZE, test up to 1MB blocks.
1026 int maxbs
= SPA_OLD_MAXBLOCKSHIFT
;
1027 if (spa_maxblocksize(ztest_spa
) == SPA_MAXBLOCKSIZE
)
1029 uint64_t block_shift
=
1030 ztest_random(maxbs
- ztest_spa
->spa_max_ashift
+ 1);
1031 return (1 << (SPA_MINBLOCKSHIFT
+ block_shift
));
1035 ztest_random_dnodesize(void)
1038 int max_slots
= spa_maxdnodesize(ztest_spa
) >> DNODE_SHIFT
;
1040 if (max_slots
== DNODE_MIN_SLOTS
)
1041 return (DNODE_MIN_SIZE
);
1044 * Weight the random distribution more heavily toward smaller
1045 * dnode sizes since that is more likely to reflect real-world
1048 ASSERT3U(max_slots
, >, 4);
1049 switch (ztest_random(10)) {
1051 slots
= 5 + ztest_random(max_slots
- 4);
1054 slots
= 2 + ztest_random(3);
1061 return (slots
<< DNODE_SHIFT
);
1065 ztest_random_ibshift(void)
1067 return (DN_MIN_INDBLKSHIFT
+
1068 ztest_random(DN_MAX_INDBLKSHIFT
- DN_MIN_INDBLKSHIFT
+ 1));
1072 ztest_random_vdev_top(spa_t
*spa
, boolean_t log_ok
)
1075 vdev_t
*rvd
= spa
->spa_root_vdev
;
1078 ASSERT(spa_config_held(spa
, SCL_ALL
, RW_READER
) != 0);
1081 top
= ztest_random(rvd
->vdev_children
);
1082 tvd
= rvd
->vdev_child
[top
];
1083 } while (tvd
->vdev_ishole
|| (tvd
->vdev_islog
&& !log_ok
) ||
1084 tvd
->vdev_mg
== NULL
|| tvd
->vdev_mg
->mg_class
== NULL
);
1090 ztest_random_dsl_prop(zfs_prop_t prop
)
1095 value
= zfs_prop_random_value(prop
, ztest_random(-1ULL));
1096 } while (prop
== ZFS_PROP_CHECKSUM
&& value
== ZIO_CHECKSUM_OFF
);
1102 ztest_dsl_prop_set_uint64(char *osname
, zfs_prop_t prop
, uint64_t value
,
1105 const char *propname
= zfs_prop_to_name(prop
);
1106 const char *valname
;
1111 error
= dsl_prop_set_int(osname
, propname
,
1112 (inherit
? ZPROP_SRC_NONE
: ZPROP_SRC_LOCAL
), value
);
1114 if (error
== ENOSPC
) {
1115 ztest_record_enospc(FTAG
);
1120 setpoint
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
1121 VERIFY0(dsl_prop_get_integer(osname
, propname
, &curval
, setpoint
));
1123 if (ztest_opts
.zo_verbose
>= 6) {
1126 err
= zfs_prop_index_to_string(prop
, curval
, &valname
);
1128 (void) printf("%s %s = %llu at '%s'\n",
1129 osname
, propname
, (unsigned long long)curval
,
1132 (void) printf("%s %s = %s at '%s'\n",
1133 osname
, propname
, valname
, setpoint
);
1135 umem_free(setpoint
, MAXPATHLEN
);
1141 ztest_spa_prop_set_uint64(zpool_prop_t prop
, uint64_t value
)
1143 spa_t
*spa
= ztest_spa
;
1144 nvlist_t
*props
= NULL
;
1147 VERIFY(nvlist_alloc(&props
, NV_UNIQUE_NAME
, 0) == 0);
1148 VERIFY(nvlist_add_uint64(props
, zpool_prop_to_name(prop
), value
) == 0);
1150 error
= spa_prop_set(spa
, props
);
1154 if (error
== ENOSPC
) {
1155 ztest_record_enospc(FTAG
);
1165 * Object and range lock mechanics
1168 list_node_t z_lnode
;
1169 refcount_t z_refcnt
;
1171 zfs_rlock_t z_range_lock
;
1176 ztest_znode_t
*z_ztznode
;
1179 static ztest_znode_t
*
1180 ztest_znode_init(uint64_t object
)
1182 ztest_znode_t
*zp
= umem_alloc(sizeof (*zp
), UMEM_NOFAIL
);
1184 list_link_init(&zp
->z_lnode
);
1185 refcount_create(&zp
->z_refcnt
);
1186 zp
->z_object
= object
;
1187 zfs_rlock_init(&zp
->z_range_lock
);
1193 ztest_znode_fini(ztest_znode_t
*zp
)
1195 ASSERT(refcount_is_zero(&zp
->z_refcnt
));
1196 zfs_rlock_destroy(&zp
->z_range_lock
);
1198 refcount_destroy(&zp
->z_refcnt
);
1199 list_link_init(&zp
->z_lnode
);
1200 umem_free(zp
, sizeof (*zp
));
1204 ztest_zll_init(zll_t
*zll
)
1206 mutex_init(&zll
->z_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
1207 list_create(&zll
->z_list
, sizeof (ztest_znode_t
),
1208 offsetof(ztest_znode_t
, z_lnode
));
1212 ztest_zll_destroy(zll_t
*zll
)
1214 list_destroy(&zll
->z_list
);
1215 mutex_destroy(&zll
->z_lock
);
1218 #define RL_TAG "range_lock"
1219 static ztest_znode_t
*
1220 ztest_znode_get(ztest_ds_t
*zd
, uint64_t object
)
1222 zll_t
*zll
= &zd
->zd_range_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1223 ztest_znode_t
*zp
= NULL
;
1224 mutex_enter(&zll
->z_lock
);
1225 for (zp
= list_head(&zll
->z_list
); (zp
);
1226 zp
= list_next(&zll
->z_list
, zp
)) {
1227 if (zp
->z_object
== object
) {
1228 refcount_add(&zp
->z_refcnt
, RL_TAG
);
1233 zp
= ztest_znode_init(object
);
1234 refcount_add(&zp
->z_refcnt
, RL_TAG
);
1235 list_insert_head(&zll
->z_list
, zp
);
1237 mutex_exit(&zll
->z_lock
);
1242 ztest_znode_put(ztest_ds_t
*zd
, ztest_znode_t
*zp
)
1245 ASSERT3U(zp
->z_object
, !=, 0);
1246 zll
= &zd
->zd_range_lock
[zp
->z_object
& (ZTEST_OBJECT_LOCKS
- 1)];
1247 mutex_enter(&zll
->z_lock
);
1248 refcount_remove(&zp
->z_refcnt
, RL_TAG
);
1249 if (refcount_is_zero(&zp
->z_refcnt
)) {
1250 list_remove(&zll
->z_list
, zp
);
1251 ztest_znode_fini(zp
);
1253 mutex_exit(&zll
->z_lock
);
1258 ztest_rll_init(rll_t
*rll
)
1260 rll
->rll_writer
= NULL
;
1261 rll
->rll_readers
= 0;
1262 mutex_init(&rll
->rll_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
1263 cv_init(&rll
->rll_cv
, NULL
, CV_DEFAULT
, NULL
);
1267 ztest_rll_destroy(rll_t
*rll
)
1269 ASSERT(rll
->rll_writer
== NULL
);
1270 ASSERT(rll
->rll_readers
== 0);
1271 mutex_destroy(&rll
->rll_lock
);
1272 cv_destroy(&rll
->rll_cv
);
1276 ztest_rll_lock(rll_t
*rll
, rl_type_t type
)
1278 mutex_enter(&rll
->rll_lock
);
1280 if (type
== RL_READER
) {
1281 while (rll
->rll_writer
!= NULL
)
1282 (void) cv_wait(&rll
->rll_cv
, &rll
->rll_lock
);
1285 while (rll
->rll_writer
!= NULL
|| rll
->rll_readers
)
1286 (void) cv_wait(&rll
->rll_cv
, &rll
->rll_lock
);
1287 rll
->rll_writer
= curthread
;
1290 mutex_exit(&rll
->rll_lock
);
1294 ztest_rll_unlock(rll_t
*rll
)
1296 mutex_enter(&rll
->rll_lock
);
1298 if (rll
->rll_writer
) {
1299 ASSERT(rll
->rll_readers
== 0);
1300 rll
->rll_writer
= NULL
;
1302 ASSERT(rll
->rll_readers
!= 0);
1303 ASSERT(rll
->rll_writer
== NULL
);
1307 if (rll
->rll_writer
== NULL
&& rll
->rll_readers
== 0)
1308 cv_broadcast(&rll
->rll_cv
);
1310 mutex_exit(&rll
->rll_lock
);
1314 ztest_object_lock(ztest_ds_t
*zd
, uint64_t object
, rl_type_t type
)
1316 rll_t
*rll
= &zd
->zd_object_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1318 ztest_rll_lock(rll
, type
);
1322 ztest_object_unlock(ztest_ds_t
*zd
, uint64_t object
)
1324 rll_t
*rll
= &zd
->zd_object_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1326 ztest_rll_unlock(rll
);
1329 static ztest_zrl_t
*
1330 ztest_zrl_init(rl_t
*rl
, ztest_znode_t
*zp
)
1332 ztest_zrl_t
*zrl
= umem_alloc(sizeof (*zrl
), UMEM_NOFAIL
);
1334 zrl
->z_ztznode
= zp
;
1339 ztest_zrl_fini(ztest_zrl_t
*zrl
)
1341 umem_free(zrl
, sizeof (*zrl
));
1344 static ztest_zrl_t
*
1345 ztest_range_lock(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
,
1346 uint64_t size
, rl_type_t type
)
1348 ztest_znode_t
*zp
= ztest_znode_get(zd
, object
);
1349 rl_t
*rl
= zfs_range_lock(&zp
->z_range_lock
, offset
,
1351 return (ztest_zrl_init(rl
, zp
));
1355 ztest_range_unlock(ztest_ds_t
*zd
, ztest_zrl_t
*zrl
)
1357 zfs_range_unlock(zrl
->z_rl
);
1358 ztest_znode_put(zd
, zrl
->z_ztznode
);
1359 ztest_zrl_fini(zrl
);
1363 ztest_zd_init(ztest_ds_t
*zd
, ztest_shared_ds_t
*szd
, objset_t
*os
)
1366 zd
->zd_zilog
= dmu_objset_zil(os
);
1367 zd
->zd_shared
= szd
;
1368 dmu_objset_name(os
, zd
->zd_name
);
1371 if (zd
->zd_shared
!= NULL
)
1372 zd
->zd_shared
->zd_seq
= 0;
1374 VERIFY(rwlock_init(&zd
->zd_zilog_lock
, USYNC_THREAD
, NULL
) == 0);
1375 mutex_init(&zd
->zd_dirobj_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
1377 for (l
= 0; l
< ZTEST_OBJECT_LOCKS
; l
++)
1378 ztest_rll_init(&zd
->zd_object_lock
[l
]);
1380 for (l
= 0; l
< ZTEST_RANGE_LOCKS
; l
++)
1381 ztest_zll_init(&zd
->zd_range_lock
[l
]);
1385 ztest_zd_fini(ztest_ds_t
*zd
)
1389 mutex_destroy(&zd
->zd_dirobj_lock
);
1390 (void) rwlock_destroy(&zd
->zd_zilog_lock
);
1392 for (l
= 0; l
< ZTEST_OBJECT_LOCKS
; l
++)
1393 ztest_rll_destroy(&zd
->zd_object_lock
[l
]);
1395 for (l
= 0; l
< ZTEST_RANGE_LOCKS
; l
++)
1396 ztest_zll_destroy(&zd
->zd_range_lock
[l
]);
1399 #define TXG_MIGHTWAIT (ztest_random(10) == 0 ? TXG_NOWAIT : TXG_WAIT)
1402 ztest_tx_assign(dmu_tx_t
*tx
, uint64_t txg_how
, const char *tag
)
1408 * Attempt to assign tx to some transaction group.
1410 error
= dmu_tx_assign(tx
, txg_how
);
1412 if (error
== ERESTART
) {
1413 ASSERT(txg_how
== TXG_NOWAIT
);
1416 ASSERT3U(error
, ==, ENOSPC
);
1417 ztest_record_enospc(tag
);
1422 txg
= dmu_tx_get_txg(tx
);
1428 ztest_pattern_set(void *buf
, uint64_t size
, uint64_t value
)
1431 uint64_t *ip_end
= (uint64_t *)((uintptr_t)buf
+ (uintptr_t)size
);
1439 ztest_pattern_match(void *buf
, uint64_t size
, uint64_t value
)
1442 uint64_t *ip_end
= (uint64_t *)((uintptr_t)buf
+ (uintptr_t)size
);
1446 diff
|= (value
- *ip
++);
1453 ztest_bt_generate(ztest_block_tag_t
*bt
, objset_t
*os
, uint64_t object
,
1454 uint64_t dnodesize
, uint64_t offset
, uint64_t gen
, uint64_t txg
,
1457 bt
->bt_magic
= BT_MAGIC
;
1458 bt
->bt_objset
= dmu_objset_id(os
);
1459 bt
->bt_object
= object
;
1460 bt
->bt_dnodesize
= dnodesize
;
1461 bt
->bt_offset
= offset
;
1464 bt
->bt_crtxg
= crtxg
;
1468 ztest_bt_verify(ztest_block_tag_t
*bt
, objset_t
*os
, uint64_t object
,
1469 uint64_t dnodesize
, uint64_t offset
, uint64_t gen
, uint64_t txg
,
1472 ASSERT3U(bt
->bt_magic
, ==, BT_MAGIC
);
1473 ASSERT3U(bt
->bt_objset
, ==, dmu_objset_id(os
));
1474 ASSERT3U(bt
->bt_object
, ==, object
);
1475 ASSERT3U(bt
->bt_dnodesize
, ==, dnodesize
);
1476 ASSERT3U(bt
->bt_offset
, ==, offset
);
1477 ASSERT3U(bt
->bt_gen
, <=, gen
);
1478 ASSERT3U(bt
->bt_txg
, <=, txg
);
1479 ASSERT3U(bt
->bt_crtxg
, ==, crtxg
);
1482 static ztest_block_tag_t
*
1483 ztest_bt_bonus(dmu_buf_t
*db
)
1485 dmu_object_info_t doi
;
1486 ztest_block_tag_t
*bt
;
1488 dmu_object_info_from_db(db
, &doi
);
1489 ASSERT3U(doi
.doi_bonus_size
, <=, db
->db_size
);
1490 ASSERT3U(doi
.doi_bonus_size
, >=, sizeof (*bt
));
1491 bt
= (void *)((char *)db
->db_data
+ doi
.doi_bonus_size
- sizeof (*bt
));
1497 * Generate a token to fill up unused bonus buffer space. Try to make
1498 * it unique to the object, generation, and offset to verify that data
1499 * is not getting overwritten by data from other dnodes.
1501 #define ZTEST_BONUS_FILL_TOKEN(obj, ds, gen, offset) \
1502 (((ds) << 48) | ((gen) << 32) | ((obj) << 8) | (offset))
1505 * Fill up the unused bonus buffer region before the block tag with a
1506 * verifiable pattern. Filling the whole bonus area with non-zero data
1507 * helps ensure that all dnode traversal code properly skips the
1508 * interior regions of large dnodes.
1511 ztest_fill_unused_bonus(dmu_buf_t
*db
, void *end
, uint64_t obj
,
1512 objset_t
*os
, uint64_t gen
)
1516 ASSERT(IS_P2ALIGNED((char *)end
- (char *)db
->db_data
, 8));
1518 for (bonusp
= db
->db_data
; bonusp
< (uint64_t *)end
; bonusp
++) {
1519 uint64_t token
= ZTEST_BONUS_FILL_TOKEN(obj
, dmu_objset_id(os
),
1520 gen
, bonusp
- (uint64_t *)db
->db_data
);
1526 * Verify that the unused area of a bonus buffer is filled with the
1530 ztest_verify_unused_bonus(dmu_buf_t
*db
, void *end
, uint64_t obj
,
1531 objset_t
*os
, uint64_t gen
)
1535 for (bonusp
= db
->db_data
; bonusp
< (uint64_t *)end
; bonusp
++) {
1536 uint64_t token
= ZTEST_BONUS_FILL_TOKEN(obj
, dmu_objset_id(os
),
1537 gen
, bonusp
- (uint64_t *)db
->db_data
);
1538 VERIFY3U(*bonusp
, ==, token
);
1546 #define lrz_type lr_mode
1547 #define lrz_blocksize lr_uid
1548 #define lrz_ibshift lr_gid
1549 #define lrz_bonustype lr_rdev
1550 #define lrz_dnodesize lr_crtime[1]
1553 ztest_log_create(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_create_t
*lr
)
1555 char *name
= (void *)(lr
+ 1); /* name follows lr */
1556 size_t namesize
= strlen(name
) + 1;
1559 if (zil_replaying(zd
->zd_zilog
, tx
))
1562 itx
= zil_itx_create(TX_CREATE
, sizeof (*lr
) + namesize
);
1563 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1564 sizeof (*lr
) + namesize
- sizeof (lr_t
));
1566 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1570 ztest_log_remove(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_remove_t
*lr
, uint64_t object
)
1572 char *name
= (void *)(lr
+ 1); /* name follows lr */
1573 size_t namesize
= strlen(name
) + 1;
1576 if (zil_replaying(zd
->zd_zilog
, tx
))
1579 itx
= zil_itx_create(TX_REMOVE
, sizeof (*lr
) + namesize
);
1580 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1581 sizeof (*lr
) + namesize
- sizeof (lr_t
));
1583 itx
->itx_oid
= object
;
1584 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1588 ztest_log_write(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_write_t
*lr
)
1591 itx_wr_state_t write_state
= ztest_random(WR_NUM_STATES
);
1593 if (zil_replaying(zd
->zd_zilog
, tx
))
1596 if (lr
->lr_length
> ZIL_MAX_LOG_DATA
)
1597 write_state
= WR_INDIRECT
;
1599 itx
= zil_itx_create(TX_WRITE
,
1600 sizeof (*lr
) + (write_state
== WR_COPIED
? lr
->lr_length
: 0));
1602 if (write_state
== WR_COPIED
&&
1603 dmu_read(zd
->zd_os
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
,
1604 ((lr_write_t
*)&itx
->itx_lr
) + 1, DMU_READ_NO_PREFETCH
) != 0) {
1605 zil_itx_destroy(itx
);
1606 itx
= zil_itx_create(TX_WRITE
, sizeof (*lr
));
1607 write_state
= WR_NEED_COPY
;
1609 itx
->itx_private
= zd
;
1610 itx
->itx_wr_state
= write_state
;
1611 itx
->itx_sync
= (ztest_random(8) == 0);
1612 itx
->itx_sod
+= (write_state
== WR_NEED_COPY
? lr
->lr_length
: 0);
1614 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1615 sizeof (*lr
) - sizeof (lr_t
));
1617 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1621 ztest_log_truncate(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_truncate_t
*lr
)
1625 if (zil_replaying(zd
->zd_zilog
, tx
))
1628 itx
= zil_itx_create(TX_TRUNCATE
, sizeof (*lr
));
1629 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1630 sizeof (*lr
) - sizeof (lr_t
));
1632 itx
->itx_sync
= B_FALSE
;
1633 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1637 ztest_log_setattr(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_setattr_t
*lr
)
1641 if (zil_replaying(zd
->zd_zilog
, tx
))
1644 itx
= zil_itx_create(TX_SETATTR
, sizeof (*lr
));
1645 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1646 sizeof (*lr
) - sizeof (lr_t
));
1648 itx
->itx_sync
= B_FALSE
;
1649 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1656 ztest_replay_create(ztest_ds_t
*zd
, lr_create_t
*lr
, boolean_t byteswap
)
1658 char *name
= (void *)(lr
+ 1); /* name follows lr */
1659 objset_t
*os
= zd
->zd_os
;
1660 ztest_block_tag_t
*bbt
;
1668 byteswap_uint64_array(lr
, sizeof (*lr
));
1670 ASSERT(lr
->lr_doid
== ZTEST_DIROBJ
);
1671 ASSERT(name
[0] != '\0');
1673 tx
= dmu_tx_create(os
);
1675 dmu_tx_hold_zap(tx
, lr
->lr_doid
, B_TRUE
, name
);
1677 if (lr
->lrz_type
== DMU_OT_ZAP_OTHER
) {
1678 dmu_tx_hold_zap(tx
, DMU_NEW_OBJECT
, B_TRUE
, NULL
);
1680 dmu_tx_hold_bonus(tx
, DMU_NEW_OBJECT
);
1683 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1687 ASSERT(dmu_objset_zil(os
)->zl_replay
== !!lr
->lr_foid
);
1688 bonuslen
= DN_BONUS_SIZE(lr
->lrz_dnodesize
);
1690 if (lr
->lrz_type
== DMU_OT_ZAP_OTHER
) {
1691 if (lr
->lr_foid
== 0) {
1692 lr
->lr_foid
= zap_create_dnsize(os
,
1693 lr
->lrz_type
, lr
->lrz_bonustype
,
1694 bonuslen
, lr
->lrz_dnodesize
, tx
);
1696 error
= zap_create_claim_dnsize(os
, lr
->lr_foid
,
1697 lr
->lrz_type
, lr
->lrz_bonustype
,
1698 bonuslen
, lr
->lrz_dnodesize
, tx
);
1701 if (lr
->lr_foid
== 0) {
1702 lr
->lr_foid
= dmu_object_alloc_dnsize(os
,
1703 lr
->lrz_type
, 0, lr
->lrz_bonustype
,
1704 bonuslen
, lr
->lrz_dnodesize
, tx
);
1706 error
= dmu_object_claim_dnsize(os
, lr
->lr_foid
,
1707 lr
->lrz_type
, 0, lr
->lrz_bonustype
,
1708 bonuslen
, lr
->lrz_dnodesize
, tx
);
1713 ASSERT3U(error
, ==, EEXIST
);
1714 ASSERT(zd
->zd_zilog
->zl_replay
);
1719 ASSERT(lr
->lr_foid
!= 0);
1721 if (lr
->lrz_type
!= DMU_OT_ZAP_OTHER
)
1722 VERIFY3U(0, ==, dmu_object_set_blocksize(os
, lr
->lr_foid
,
1723 lr
->lrz_blocksize
, lr
->lrz_ibshift
, tx
));
1725 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1726 bbt
= ztest_bt_bonus(db
);
1727 dmu_buf_will_dirty(db
, tx
);
1728 ztest_bt_generate(bbt
, os
, lr
->lr_foid
, lr
->lrz_dnodesize
, -1ULL,
1729 lr
->lr_gen
, txg
, txg
);
1730 ztest_fill_unused_bonus(db
, bbt
, lr
->lr_foid
, os
, lr
->lr_gen
);
1731 dmu_buf_rele(db
, FTAG
);
1733 VERIFY3U(0, ==, zap_add(os
, lr
->lr_doid
, name
, sizeof (uint64_t), 1,
1736 (void) ztest_log_create(zd
, tx
, lr
);
1744 ztest_replay_remove(ztest_ds_t
*zd
, lr_remove_t
*lr
, boolean_t byteswap
)
1746 char *name
= (void *)(lr
+ 1); /* name follows lr */
1747 objset_t
*os
= zd
->zd_os
;
1748 dmu_object_info_t doi
;
1750 uint64_t object
, txg
;
1753 byteswap_uint64_array(lr
, sizeof (*lr
));
1755 ASSERT(lr
->lr_doid
== ZTEST_DIROBJ
);
1756 ASSERT(name
[0] != '\0');
1759 zap_lookup(os
, lr
->lr_doid
, name
, sizeof (object
), 1, &object
));
1760 ASSERT(object
!= 0);
1762 ztest_object_lock(zd
, object
, RL_WRITER
);
1764 VERIFY3U(0, ==, dmu_object_info(os
, object
, &doi
));
1766 tx
= dmu_tx_create(os
);
1768 dmu_tx_hold_zap(tx
, lr
->lr_doid
, B_FALSE
, name
);
1769 dmu_tx_hold_free(tx
, object
, 0, DMU_OBJECT_END
);
1771 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1773 ztest_object_unlock(zd
, object
);
1777 if (doi
.doi_type
== DMU_OT_ZAP_OTHER
) {
1778 VERIFY3U(0, ==, zap_destroy(os
, object
, tx
));
1780 VERIFY3U(0, ==, dmu_object_free(os
, object
, tx
));
1783 VERIFY3U(0, ==, zap_remove(os
, lr
->lr_doid
, name
, tx
));
1785 (void) ztest_log_remove(zd
, tx
, lr
, object
);
1789 ztest_object_unlock(zd
, object
);
1795 ztest_replay_write(ztest_ds_t
*zd
, lr_write_t
*lr
, boolean_t byteswap
)
1797 objset_t
*os
= zd
->zd_os
;
1798 void *data
= lr
+ 1; /* data follows lr */
1799 uint64_t offset
, length
;
1800 ztest_block_tag_t
*bt
= data
;
1801 ztest_block_tag_t
*bbt
;
1802 uint64_t gen
, txg
, lrtxg
, crtxg
;
1803 dmu_object_info_t doi
;
1806 arc_buf_t
*abuf
= NULL
;
1810 byteswap_uint64_array(lr
, sizeof (*lr
));
1812 offset
= lr
->lr_offset
;
1813 length
= lr
->lr_length
;
1815 /* If it's a dmu_sync() block, write the whole block */
1816 if (lr
->lr_common
.lrc_reclen
== sizeof (lr_write_t
)) {
1817 uint64_t blocksize
= BP_GET_LSIZE(&lr
->lr_blkptr
);
1818 if (length
< blocksize
) {
1819 offset
-= offset
% blocksize
;
1824 if (bt
->bt_magic
== BSWAP_64(BT_MAGIC
))
1825 byteswap_uint64_array(bt
, sizeof (*bt
));
1827 if (bt
->bt_magic
!= BT_MAGIC
)
1830 ztest_object_lock(zd
, lr
->lr_foid
, RL_READER
);
1831 rl
= ztest_range_lock(zd
, lr
->lr_foid
, offset
, length
, RL_WRITER
);
1833 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1835 dmu_object_info_from_db(db
, &doi
);
1837 bbt
= ztest_bt_bonus(db
);
1838 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1840 crtxg
= bbt
->bt_crtxg
;
1841 lrtxg
= lr
->lr_common
.lrc_txg
;
1843 tx
= dmu_tx_create(os
);
1845 dmu_tx_hold_write(tx
, lr
->lr_foid
, offset
, length
);
1847 if (ztest_random(8) == 0 && length
== doi
.doi_data_block_size
&&
1848 P2PHASE(offset
, length
) == 0)
1849 abuf
= dmu_request_arcbuf(db
, length
);
1851 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1854 dmu_return_arcbuf(abuf
);
1855 dmu_buf_rele(db
, FTAG
);
1856 ztest_range_unlock(zd
, rl
);
1857 ztest_object_unlock(zd
, lr
->lr_foid
);
1863 * Usually, verify the old data before writing new data --
1864 * but not always, because we also want to verify correct
1865 * behavior when the data was not recently read into cache.
1867 ASSERT(offset
% doi
.doi_data_block_size
== 0);
1868 if (ztest_random(4) != 0) {
1869 int prefetch
= ztest_random(2) ?
1870 DMU_READ_PREFETCH
: DMU_READ_NO_PREFETCH
;
1871 ztest_block_tag_t rbt
;
1873 VERIFY(dmu_read(os
, lr
->lr_foid
, offset
,
1874 sizeof (rbt
), &rbt
, prefetch
) == 0);
1875 if (rbt
.bt_magic
== BT_MAGIC
) {
1876 ztest_bt_verify(&rbt
, os
, lr
->lr_foid
, 0,
1877 offset
, gen
, txg
, crtxg
);
1882 * Writes can appear to be newer than the bonus buffer because
1883 * the ztest_get_data() callback does a dmu_read() of the
1884 * open-context data, which may be different than the data
1885 * as it was when the write was generated.
1887 if (zd
->zd_zilog
->zl_replay
) {
1888 ztest_bt_verify(bt
, os
, lr
->lr_foid
, 0, offset
,
1889 MAX(gen
, bt
->bt_gen
), MAX(txg
, lrtxg
),
1894 * Set the bt's gen/txg to the bonus buffer's gen/txg
1895 * so that all of the usual ASSERTs will work.
1897 ztest_bt_generate(bt
, os
, lr
->lr_foid
, 0, offset
, gen
, txg
,
1902 dmu_write(os
, lr
->lr_foid
, offset
, length
, data
, tx
);
1904 bcopy(data
, abuf
->b_data
, length
);
1905 dmu_assign_arcbuf(db
, offset
, abuf
, tx
);
1908 (void) ztest_log_write(zd
, tx
, lr
);
1910 dmu_buf_rele(db
, FTAG
);
1914 ztest_range_unlock(zd
, rl
);
1915 ztest_object_unlock(zd
, lr
->lr_foid
);
1921 ztest_replay_truncate(ztest_ds_t
*zd
, lr_truncate_t
*lr
, boolean_t byteswap
)
1923 objset_t
*os
= zd
->zd_os
;
1929 byteswap_uint64_array(lr
, sizeof (*lr
));
1931 ztest_object_lock(zd
, lr
->lr_foid
, RL_READER
);
1932 rl
= ztest_range_lock(zd
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
,
1935 tx
= dmu_tx_create(os
);
1937 dmu_tx_hold_free(tx
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
);
1939 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1941 ztest_range_unlock(zd
, rl
);
1942 ztest_object_unlock(zd
, lr
->lr_foid
);
1946 VERIFY(dmu_free_range(os
, lr
->lr_foid
, lr
->lr_offset
,
1947 lr
->lr_length
, tx
) == 0);
1949 (void) ztest_log_truncate(zd
, tx
, lr
);
1953 ztest_range_unlock(zd
, rl
);
1954 ztest_object_unlock(zd
, lr
->lr_foid
);
1960 ztest_replay_setattr(ztest_ds_t
*zd
, lr_setattr_t
*lr
, boolean_t byteswap
)
1962 objset_t
*os
= zd
->zd_os
;
1965 ztest_block_tag_t
*bbt
;
1966 uint64_t txg
, lrtxg
, crtxg
, dnodesize
;
1969 byteswap_uint64_array(lr
, sizeof (*lr
));
1971 ztest_object_lock(zd
, lr
->lr_foid
, RL_WRITER
);
1973 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1975 tx
= dmu_tx_create(os
);
1976 dmu_tx_hold_bonus(tx
, lr
->lr_foid
);
1978 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1980 dmu_buf_rele(db
, FTAG
);
1981 ztest_object_unlock(zd
, lr
->lr_foid
);
1985 bbt
= ztest_bt_bonus(db
);
1986 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1987 crtxg
= bbt
->bt_crtxg
;
1988 lrtxg
= lr
->lr_common
.lrc_txg
;
1989 dnodesize
= bbt
->bt_dnodesize
;
1991 if (zd
->zd_zilog
->zl_replay
) {
1992 ASSERT(lr
->lr_size
!= 0);
1993 ASSERT(lr
->lr_mode
!= 0);
1997 * Randomly change the size and increment the generation.
1999 lr
->lr_size
= (ztest_random(db
->db_size
/ sizeof (*bbt
)) + 1) *
2001 lr
->lr_mode
= bbt
->bt_gen
+ 1;
2006 * Verify that the current bonus buffer is not newer than our txg.
2008 ztest_bt_verify(bbt
, os
, lr
->lr_foid
, dnodesize
, -1ULL, lr
->lr_mode
,
2009 MAX(txg
, lrtxg
), crtxg
);
2011 dmu_buf_will_dirty(db
, tx
);
2013 ASSERT3U(lr
->lr_size
, >=, sizeof (*bbt
));
2014 ASSERT3U(lr
->lr_size
, <=, db
->db_size
);
2015 VERIFY0(dmu_set_bonus(db
, lr
->lr_size
, tx
));
2016 bbt
= ztest_bt_bonus(db
);
2018 ztest_bt_generate(bbt
, os
, lr
->lr_foid
, dnodesize
, -1ULL, lr
->lr_mode
,
2020 ztest_fill_unused_bonus(db
, bbt
, lr
->lr_foid
, os
, bbt
->bt_gen
);
2021 dmu_buf_rele(db
, FTAG
);
2023 (void) ztest_log_setattr(zd
, tx
, lr
);
2027 ztest_object_unlock(zd
, lr
->lr_foid
);
2032 zil_replay_func_t ztest_replay_vector
[TX_MAX_TYPE
] = {
2033 NULL
, /* 0 no such transaction type */
2034 (zil_replay_func_t
)ztest_replay_create
, /* TX_CREATE */
2035 NULL
, /* TX_MKDIR */
2036 NULL
, /* TX_MKXATTR */
2037 NULL
, /* TX_SYMLINK */
2038 (zil_replay_func_t
)ztest_replay_remove
, /* TX_REMOVE */
2039 NULL
, /* TX_RMDIR */
2041 NULL
, /* TX_RENAME */
2042 (zil_replay_func_t
)ztest_replay_write
, /* TX_WRITE */
2043 (zil_replay_func_t
)ztest_replay_truncate
, /* TX_TRUNCATE */
2044 (zil_replay_func_t
)ztest_replay_setattr
, /* TX_SETATTR */
2046 NULL
, /* TX_CREATE_ACL */
2047 NULL
, /* TX_CREATE_ATTR */
2048 NULL
, /* TX_CREATE_ACL_ATTR */
2049 NULL
, /* TX_MKDIR_ACL */
2050 NULL
, /* TX_MKDIR_ATTR */
2051 NULL
, /* TX_MKDIR_ACL_ATTR */
2052 NULL
, /* TX_WRITE2 */
2056 * ZIL get_data callbacks
2058 typedef struct ztest_zgd_private
{
2062 } ztest_zgd_private_t
;
2065 ztest_get_done(zgd_t
*zgd
, int error
)
2067 ztest_zgd_private_t
*zzp
= zgd
->zgd_private
;
2068 ztest_ds_t
*zd
= zzp
->z_zd
;
2069 uint64_t object
= zzp
->z_object
;
2072 dmu_buf_rele(zgd
->zgd_db
, zgd
);
2074 ztest_range_unlock(zd
, zzp
->z_rl
);
2075 ztest_object_unlock(zd
, object
);
2077 if (error
== 0 && zgd
->zgd_bp
)
2078 zil_add_block(zgd
->zgd_zilog
, zgd
->zgd_bp
);
2080 umem_free(zgd
, sizeof (*zgd
));
2081 umem_free(zzp
, sizeof (*zzp
));
2085 ztest_get_data(void *arg
, lr_write_t
*lr
, char *buf
, zio_t
*zio
)
2087 ztest_ds_t
*zd
= arg
;
2088 objset_t
*os
= zd
->zd_os
;
2089 uint64_t object
= lr
->lr_foid
;
2090 uint64_t offset
= lr
->lr_offset
;
2091 uint64_t size
= lr
->lr_length
;
2092 blkptr_t
*bp
= &lr
->lr_blkptr
;
2093 uint64_t txg
= lr
->lr_common
.lrc_txg
;
2095 dmu_object_info_t doi
;
2099 ztest_zgd_private_t
*zgd_private
;
2101 ztest_object_lock(zd
, object
, RL_READER
);
2102 error
= dmu_bonus_hold(os
, object
, FTAG
, &db
);
2104 ztest_object_unlock(zd
, object
);
2108 crtxg
= ztest_bt_bonus(db
)->bt_crtxg
;
2110 if (crtxg
== 0 || crtxg
> txg
) {
2111 dmu_buf_rele(db
, FTAG
);
2112 ztest_object_unlock(zd
, object
);
2116 dmu_object_info_from_db(db
, &doi
);
2117 dmu_buf_rele(db
, FTAG
);
2120 zgd
= umem_zalloc(sizeof (*zgd
), UMEM_NOFAIL
);
2121 zgd
->zgd_zilog
= zd
->zd_zilog
;
2122 zgd_private
= umem_zalloc(sizeof (ztest_zgd_private_t
), UMEM_NOFAIL
);
2123 zgd_private
->z_zd
= zd
;
2124 zgd_private
->z_object
= object
;
2125 zgd
->zgd_private
= zgd_private
;
2127 if (buf
!= NULL
) { /* immediate write */
2128 zgd_private
->z_rl
= ztest_range_lock(zd
, object
, offset
, size
,
2131 error
= dmu_read(os
, object
, offset
, size
, buf
,
2132 DMU_READ_NO_PREFETCH
);
2135 size
= doi
.doi_data_block_size
;
2137 offset
= P2ALIGN(offset
, size
);
2139 ASSERT(offset
< size
);
2143 zgd_private
->z_rl
= ztest_range_lock(zd
, object
, offset
, size
,
2146 error
= dmu_buf_hold(os
, object
, offset
, zgd
, &db
,
2147 DMU_READ_NO_PREFETCH
);
2150 blkptr_t
*obp
= dmu_buf_get_blkptr(db
);
2152 ASSERT(BP_IS_HOLE(bp
));
2159 ASSERT(db
->db_offset
== offset
);
2160 ASSERT(db
->db_size
== size
);
2162 error
= dmu_sync(zio
, lr
->lr_common
.lrc_txg
,
2163 ztest_get_done
, zgd
);
2170 ztest_get_done(zgd
, error
);
2176 ztest_lr_alloc(size_t lrsize
, char *name
)
2179 size_t namesize
= name
? strlen(name
) + 1 : 0;
2181 lr
= umem_zalloc(lrsize
+ namesize
, UMEM_NOFAIL
);
2184 bcopy(name
, lr
+ lrsize
, namesize
);
2190 ztest_lr_free(void *lr
, size_t lrsize
, char *name
)
2192 size_t namesize
= name
? strlen(name
) + 1 : 0;
2194 umem_free(lr
, lrsize
+ namesize
);
2198 * Lookup a bunch of objects. Returns the number of objects not found.
2201 ztest_lookup(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
2207 ASSERT(mutex_held(&zd
->zd_dirobj_lock
));
2209 for (i
= 0; i
< count
; i
++, od
++) {
2211 error
= zap_lookup(zd
->zd_os
, od
->od_dir
, od
->od_name
,
2212 sizeof (uint64_t), 1, &od
->od_object
);
2214 ASSERT(error
== ENOENT
);
2215 ASSERT(od
->od_object
== 0);
2219 ztest_block_tag_t
*bbt
;
2220 dmu_object_info_t doi
;
2222 ASSERT(od
->od_object
!= 0);
2223 ASSERT(missing
== 0); /* there should be no gaps */
2225 ztest_object_lock(zd
, od
->od_object
, RL_READER
);
2226 VERIFY3U(0, ==, dmu_bonus_hold(zd
->zd_os
,
2227 od
->od_object
, FTAG
, &db
));
2228 dmu_object_info_from_db(db
, &doi
);
2229 bbt
= ztest_bt_bonus(db
);
2230 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
2231 od
->od_type
= doi
.doi_type
;
2232 od
->od_blocksize
= doi
.doi_data_block_size
;
2233 od
->od_gen
= bbt
->bt_gen
;
2234 dmu_buf_rele(db
, FTAG
);
2235 ztest_object_unlock(zd
, od
->od_object
);
2243 ztest_create(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
2248 ASSERT(mutex_held(&zd
->zd_dirobj_lock
));
2250 for (i
= 0; i
< count
; i
++, od
++) {
2257 lr_create_t
*lr
= ztest_lr_alloc(sizeof (*lr
), od
->od_name
);
2259 lr
->lr_doid
= od
->od_dir
;
2260 lr
->lr_foid
= 0; /* 0 to allocate, > 0 to claim */
2261 lr
->lrz_type
= od
->od_crtype
;
2262 lr
->lrz_blocksize
= od
->od_crblocksize
;
2263 lr
->lrz_ibshift
= ztest_random_ibshift();
2264 lr
->lrz_bonustype
= DMU_OT_UINT64_OTHER
;
2265 lr
->lrz_dnodesize
= od
->od_crdnodesize
;
2266 lr
->lr_gen
= od
->od_crgen
;
2267 lr
->lr_crtime
[0] = time(NULL
);
2269 if (ztest_replay_create(zd
, lr
, B_FALSE
) != 0) {
2270 ASSERT(missing
== 0);
2274 od
->od_object
= lr
->lr_foid
;
2275 od
->od_type
= od
->od_crtype
;
2276 od
->od_blocksize
= od
->od_crblocksize
;
2277 od
->od_gen
= od
->od_crgen
;
2278 ASSERT(od
->od_object
!= 0);
2281 ztest_lr_free(lr
, sizeof (*lr
), od
->od_name
);
2288 ztest_remove(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
2294 ASSERT(mutex_held(&zd
->zd_dirobj_lock
));
2298 for (i
= count
- 1; i
>= 0; i
--, od
--) {
2305 * No object was found.
2307 if (od
->od_object
== 0)
2310 lr_remove_t
*lr
= ztest_lr_alloc(sizeof (*lr
), od
->od_name
);
2312 lr
->lr_doid
= od
->od_dir
;
2314 if ((error
= ztest_replay_remove(zd
, lr
, B_FALSE
)) != 0) {
2315 ASSERT3U(error
, ==, ENOSPC
);
2320 ztest_lr_free(lr
, sizeof (*lr
), od
->od_name
);
2327 ztest_write(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
,
2333 lr
= ztest_lr_alloc(sizeof (*lr
) + size
, NULL
);
2335 lr
->lr_foid
= object
;
2336 lr
->lr_offset
= offset
;
2337 lr
->lr_length
= size
;
2339 BP_ZERO(&lr
->lr_blkptr
);
2341 bcopy(data
, lr
+ 1, size
);
2343 error
= ztest_replay_write(zd
, lr
, B_FALSE
);
2345 ztest_lr_free(lr
, sizeof (*lr
) + size
, NULL
);
2351 ztest_truncate(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
)
2356 lr
= ztest_lr_alloc(sizeof (*lr
), NULL
);
2358 lr
->lr_foid
= object
;
2359 lr
->lr_offset
= offset
;
2360 lr
->lr_length
= size
;
2362 error
= ztest_replay_truncate(zd
, lr
, B_FALSE
);
2364 ztest_lr_free(lr
, sizeof (*lr
), NULL
);
2370 ztest_setattr(ztest_ds_t
*zd
, uint64_t object
)
2375 lr
= ztest_lr_alloc(sizeof (*lr
), NULL
);
2377 lr
->lr_foid
= object
;
2381 error
= ztest_replay_setattr(zd
, lr
, B_FALSE
);
2383 ztest_lr_free(lr
, sizeof (*lr
), NULL
);
2389 ztest_prealloc(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
)
2391 objset_t
*os
= zd
->zd_os
;
2396 txg_wait_synced(dmu_objset_pool(os
), 0);
2398 ztest_object_lock(zd
, object
, RL_READER
);
2399 rl
= ztest_range_lock(zd
, object
, offset
, size
, RL_WRITER
);
2401 tx
= dmu_tx_create(os
);
2403 dmu_tx_hold_write(tx
, object
, offset
, size
);
2405 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
2408 dmu_prealloc(os
, object
, offset
, size
, tx
);
2410 txg_wait_synced(dmu_objset_pool(os
), txg
);
2412 (void) dmu_free_long_range(os
, object
, offset
, size
);
2415 ztest_range_unlock(zd
, rl
);
2416 ztest_object_unlock(zd
, object
);
2420 ztest_io(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
)
2423 ztest_block_tag_t wbt
;
2424 dmu_object_info_t doi
;
2425 enum ztest_io_type io_type
;
2429 VERIFY(dmu_object_info(zd
->zd_os
, object
, &doi
) == 0);
2430 blocksize
= doi
.doi_data_block_size
;
2431 data
= umem_alloc(blocksize
, UMEM_NOFAIL
);
2434 * Pick an i/o type at random, biased toward writing block tags.
2436 io_type
= ztest_random(ZTEST_IO_TYPES
);
2437 if (ztest_random(2) == 0)
2438 io_type
= ZTEST_IO_WRITE_TAG
;
2440 (void) rw_rdlock(&zd
->zd_zilog_lock
);
2444 case ZTEST_IO_WRITE_TAG
:
2445 ztest_bt_generate(&wbt
, zd
->zd_os
, object
, doi
.doi_dnodesize
,
2447 (void) ztest_write(zd
, object
, offset
, sizeof (wbt
), &wbt
);
2450 case ZTEST_IO_WRITE_PATTERN
:
2451 (void) memset(data
, 'a' + (object
+ offset
) % 5, blocksize
);
2452 if (ztest_random(2) == 0) {
2454 * Induce fletcher2 collisions to ensure that
2455 * zio_ddt_collision() detects and resolves them
2456 * when using fletcher2-verify for deduplication.
2458 ((uint64_t *)data
)[0] ^= 1ULL << 63;
2459 ((uint64_t *)data
)[4] ^= 1ULL << 63;
2461 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2464 case ZTEST_IO_WRITE_ZEROES
:
2465 bzero(data
, blocksize
);
2466 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2469 case ZTEST_IO_TRUNCATE
:
2470 (void) ztest_truncate(zd
, object
, offset
, blocksize
);
2473 case ZTEST_IO_SETATTR
:
2474 (void) ztest_setattr(zd
, object
);
2479 case ZTEST_IO_REWRITE
:
2480 (void) rw_rdlock(&ztest_name_lock
);
2481 err
= ztest_dsl_prop_set_uint64(zd
->zd_name
,
2482 ZFS_PROP_CHECKSUM
, spa_dedup_checksum(ztest_spa
),
2484 VERIFY(err
== 0 || err
== ENOSPC
);
2485 err
= ztest_dsl_prop_set_uint64(zd
->zd_name
,
2486 ZFS_PROP_COMPRESSION
,
2487 ztest_random_dsl_prop(ZFS_PROP_COMPRESSION
),
2489 VERIFY(err
== 0 || err
== ENOSPC
);
2490 (void) rw_unlock(&ztest_name_lock
);
2492 VERIFY0(dmu_read(zd
->zd_os
, object
, offset
, blocksize
, data
,
2493 DMU_READ_NO_PREFETCH
));
2495 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2499 (void) rw_unlock(&zd
->zd_zilog_lock
);
2501 umem_free(data
, blocksize
);
2505 * Initialize an object description template.
2508 ztest_od_init(ztest_od_t
*od
, uint64_t id
, char *tag
, uint64_t index
,
2509 dmu_object_type_t type
, uint64_t blocksize
, uint64_t dnodesize
,
2512 od
->od_dir
= ZTEST_DIROBJ
;
2515 od
->od_crtype
= type
;
2516 od
->od_crblocksize
= blocksize
? blocksize
: ztest_random_blocksize();
2517 od
->od_crdnodesize
= dnodesize
? dnodesize
: ztest_random_dnodesize();
2520 od
->od_type
= DMU_OT_NONE
;
2521 od
->od_blocksize
= 0;
2524 (void) snprintf(od
->od_name
, sizeof (od
->od_name
), "%s(%lld)[%llu]",
2525 tag
, (longlong_t
)id
, (u_longlong_t
)index
);
2529 * Lookup or create the objects for a test using the od template.
2530 * If the objects do not all exist, or if 'remove' is specified,
2531 * remove any existing objects and create new ones. Otherwise,
2532 * use the existing objects.
2535 ztest_object_init(ztest_ds_t
*zd
, ztest_od_t
*od
, size_t size
, boolean_t remove
)
2537 int count
= size
/ sizeof (*od
);
2540 mutex_enter(&zd
->zd_dirobj_lock
);
2541 if ((ztest_lookup(zd
, od
, count
) != 0 || remove
) &&
2542 (ztest_remove(zd
, od
, count
) != 0 ||
2543 ztest_create(zd
, od
, count
) != 0))
2546 mutex_exit(&zd
->zd_dirobj_lock
);
2553 ztest_zil_commit(ztest_ds_t
*zd
, uint64_t id
)
2555 zilog_t
*zilog
= zd
->zd_zilog
;
2557 (void) rw_rdlock(&zd
->zd_zilog_lock
);
2559 zil_commit(zilog
, ztest_random(ZTEST_OBJECTS
));
2562 * Remember the committed values in zd, which is in parent/child
2563 * shared memory. If we die, the next iteration of ztest_run()
2564 * will verify that the log really does contain this record.
2566 mutex_enter(&zilog
->zl_lock
);
2567 ASSERT(zd
->zd_shared
!= NULL
);
2568 ASSERT3U(zd
->zd_shared
->zd_seq
, <=, zilog
->zl_commit_lr_seq
);
2569 zd
->zd_shared
->zd_seq
= zilog
->zl_commit_lr_seq
;
2570 mutex_exit(&zilog
->zl_lock
);
2572 (void) rw_unlock(&zd
->zd_zilog_lock
);
2576 * This function is designed to simulate the operations that occur during a
2577 * mount/unmount operation. We hold the dataset across these operations in an
2578 * attempt to expose any implicit assumptions about ZIL management.
2582 ztest_zil_remount(ztest_ds_t
*zd
, uint64_t id
)
2584 objset_t
*os
= zd
->zd_os
;
2587 * We grab the zd_dirobj_lock to ensure that no other thread is
2588 * updating the zil (i.e. adding in-memory log records) and the
2589 * zd_zilog_lock to block any I/O.
2591 mutex_enter(&zd
->zd_dirobj_lock
);
2592 (void) rw_wrlock(&zd
->zd_zilog_lock
);
2594 /* zfs_sb_teardown() */
2595 zil_close(zd
->zd_zilog
);
2597 /* zfsvfs_setup() */
2598 VERIFY(zil_open(os
, ztest_get_data
) == zd
->zd_zilog
);
2599 zil_replay(os
, zd
, ztest_replay_vector
);
2601 (void) rw_unlock(&zd
->zd_zilog_lock
);
2602 mutex_exit(&zd
->zd_dirobj_lock
);
2606 * Verify that we can't destroy an active pool, create an existing pool,
2607 * or create a pool with a bad vdev spec.
2611 ztest_spa_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
2613 ztest_shared_opts_t
*zo
= &ztest_opts
;
2618 * Attempt to create using a bad file.
2620 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 0, 1);
2621 VERIFY3U(ENOENT
, ==,
2622 spa_create("ztest_bad_file", nvroot
, NULL
, NULL
));
2623 nvlist_free(nvroot
);
2626 * Attempt to create using a bad mirror.
2628 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 2, 1);
2629 VERIFY3U(ENOENT
, ==,
2630 spa_create("ztest_bad_mirror", nvroot
, NULL
, NULL
));
2631 nvlist_free(nvroot
);
2634 * Attempt to create an existing pool. It shouldn't matter
2635 * what's in the nvroot; we should fail with EEXIST.
2637 (void) rw_rdlock(&ztest_name_lock
);
2638 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 0, 1);
2639 VERIFY3U(EEXIST
, ==, spa_create(zo
->zo_pool
, nvroot
, NULL
, NULL
));
2640 nvlist_free(nvroot
);
2641 VERIFY3U(0, ==, spa_open(zo
->zo_pool
, &spa
, FTAG
));
2642 VERIFY3U(EBUSY
, ==, spa_destroy(zo
->zo_pool
));
2643 spa_close(spa
, FTAG
);
2645 (void) rw_unlock(&ztest_name_lock
);
2650 ztest_spa_upgrade(ztest_ds_t
*zd
, uint64_t id
)
2653 uint64_t initial_version
= SPA_VERSION_INITIAL
;
2654 uint64_t version
, newversion
;
2655 nvlist_t
*nvroot
, *props
;
2658 mutex_enter(&ztest_vdev_lock
);
2659 name
= kmem_asprintf("%s_upgrade", ztest_opts
.zo_pool
);
2662 * Clean up from previous runs.
2664 (void) spa_destroy(name
);
2666 nvroot
= make_vdev_root(NULL
, NULL
, name
, ztest_opts
.zo_vdev_size
, 0,
2667 0, ztest_opts
.zo_raidz
, ztest_opts
.zo_mirrors
, 1);
2670 * If we're configuring a RAIDZ device then make sure that the
2671 * the initial version is capable of supporting that feature.
2673 switch (ztest_opts
.zo_raidz_parity
) {
2676 initial_version
= SPA_VERSION_INITIAL
;
2679 initial_version
= SPA_VERSION_RAIDZ2
;
2682 initial_version
= SPA_VERSION_RAIDZ3
;
2687 * Create a pool with a spa version that can be upgraded. Pick
2688 * a value between initial_version and SPA_VERSION_BEFORE_FEATURES.
2691 version
= ztest_random_spa_version(initial_version
);
2692 } while (version
> SPA_VERSION_BEFORE_FEATURES
);
2694 props
= fnvlist_alloc();
2695 fnvlist_add_uint64(props
,
2696 zpool_prop_to_name(ZPOOL_PROP_VERSION
), version
);
2697 VERIFY3S(spa_create(name
, nvroot
, props
, NULL
), ==, 0);
2698 fnvlist_free(nvroot
);
2699 fnvlist_free(props
);
2701 VERIFY3S(spa_open(name
, &spa
, FTAG
), ==, 0);
2702 VERIFY3U(spa_version(spa
), ==, version
);
2703 newversion
= ztest_random_spa_version(version
+ 1);
2705 if (ztest_opts
.zo_verbose
>= 4) {
2706 (void) printf("upgrading spa version from %llu to %llu\n",
2707 (u_longlong_t
)version
, (u_longlong_t
)newversion
);
2710 spa_upgrade(spa
, newversion
);
2711 VERIFY3U(spa_version(spa
), >, version
);
2712 VERIFY3U(spa_version(spa
), ==, fnvlist_lookup_uint64(spa
->spa_config
,
2713 zpool_prop_to_name(ZPOOL_PROP_VERSION
)));
2714 spa_close(spa
, FTAG
);
2717 mutex_exit(&ztest_vdev_lock
);
2721 vdev_lookup_by_path(vdev_t
*vd
, const char *path
)
2726 if (vd
->vdev_path
!= NULL
&& strcmp(path
, vd
->vdev_path
) == 0)
2729 for (c
= 0; c
< vd
->vdev_children
; c
++)
2730 if ((mvd
= vdev_lookup_by_path(vd
->vdev_child
[c
], path
)) !=
2738 * Find the first available hole which can be used as a top-level.
2741 find_vdev_hole(spa_t
*spa
)
2743 vdev_t
*rvd
= spa
->spa_root_vdev
;
2746 ASSERT(spa_config_held(spa
, SCL_VDEV
, RW_READER
) == SCL_VDEV
);
2748 for (c
= 0; c
< rvd
->vdev_children
; c
++) {
2749 vdev_t
*cvd
= rvd
->vdev_child
[c
];
2751 if (cvd
->vdev_ishole
)
2758 * Verify that vdev_add() works as expected.
2762 ztest_vdev_add_remove(ztest_ds_t
*zd
, uint64_t id
)
2764 ztest_shared_t
*zs
= ztest_shared
;
2765 spa_t
*spa
= ztest_spa
;
2771 mutex_enter(&ztest_vdev_lock
);
2772 leaves
= MAX(zs
->zs_mirrors
+ zs
->zs_splits
, 1) * ztest_opts
.zo_raidz
;
2774 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2776 ztest_shared
->zs_vdev_next_leaf
= find_vdev_hole(spa
) * leaves
;
2779 * If we have slogs then remove them 1/4 of the time.
2781 if (spa_has_slogs(spa
) && ztest_random(4) == 0) {
2783 * Grab the guid from the head of the log class rotor.
2785 guid
= spa_log_class(spa
)->mc_rotor
->mg_vd
->vdev_guid
;
2787 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2790 * We have to grab the zs_name_lock as writer to
2791 * prevent a race between removing a slog (dmu_objset_find)
2792 * and destroying a dataset. Removing the slog will
2793 * grab a reference on the dataset which may cause
2794 * dsl_destroy_head() to fail with EBUSY thus
2795 * leaving the dataset in an inconsistent state.
2797 rw_wrlock(&ztest_name_lock
);
2798 error
= spa_vdev_remove(spa
, guid
, B_FALSE
);
2799 rw_unlock(&ztest_name_lock
);
2801 if (error
&& error
!= EEXIST
)
2802 fatal(0, "spa_vdev_remove() = %d", error
);
2804 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2807 * Make 1/4 of the devices be log devices.
2809 nvroot
= make_vdev_root(NULL
, NULL
, NULL
,
2810 ztest_opts
.zo_vdev_size
, 0,
2811 ztest_random(4) == 0, ztest_opts
.zo_raidz
,
2814 error
= spa_vdev_add(spa
, nvroot
);
2815 nvlist_free(nvroot
);
2817 if (error
== ENOSPC
)
2818 ztest_record_enospc("spa_vdev_add");
2819 else if (error
!= 0)
2820 fatal(0, "spa_vdev_add() = %d", error
);
2823 mutex_exit(&ztest_vdev_lock
);
2827 * Verify that adding/removing aux devices (l2arc, hot spare) works as expected.
2831 ztest_vdev_aux_add_remove(ztest_ds_t
*zd
, uint64_t id
)
2833 ztest_shared_t
*zs
= ztest_shared
;
2834 spa_t
*spa
= ztest_spa
;
2835 vdev_t
*rvd
= spa
->spa_root_vdev
;
2836 spa_aux_vdev_t
*sav
;
2842 path
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
2844 if (ztest_random(2) == 0) {
2845 sav
= &spa
->spa_spares
;
2846 aux
= ZPOOL_CONFIG_SPARES
;
2848 sav
= &spa
->spa_l2cache
;
2849 aux
= ZPOOL_CONFIG_L2CACHE
;
2852 mutex_enter(&ztest_vdev_lock
);
2854 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2856 if (sav
->sav_count
!= 0 && ztest_random(4) == 0) {
2858 * Pick a random device to remove.
2860 guid
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)]->vdev_guid
;
2863 * Find an unused device we can add.
2865 zs
->zs_vdev_aux
= 0;
2868 (void) snprintf(path
, MAXPATHLEN
, ztest_aux_template
,
2869 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
, aux
,
2871 for (c
= 0; c
< sav
->sav_count
; c
++)
2872 if (strcmp(sav
->sav_vdevs
[c
]->vdev_path
,
2875 if (c
== sav
->sav_count
&&
2876 vdev_lookup_by_path(rvd
, path
) == NULL
)
2882 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2888 nvlist_t
*nvroot
= make_vdev_root(NULL
, aux
, NULL
,
2889 (ztest_opts
.zo_vdev_size
* 5) / 4, 0, 0, 0, 0, 1);
2890 error
= spa_vdev_add(spa
, nvroot
);
2892 fatal(0, "spa_vdev_add(%p) = %d", nvroot
, error
);
2893 nvlist_free(nvroot
);
2896 * Remove an existing device. Sometimes, dirty its
2897 * vdev state first to make sure we handle removal
2898 * of devices that have pending state changes.
2900 if (ztest_random(2) == 0)
2901 (void) vdev_online(spa
, guid
, 0, NULL
);
2903 error
= spa_vdev_remove(spa
, guid
, B_FALSE
);
2904 if (error
!= 0 && error
!= EBUSY
)
2905 fatal(0, "spa_vdev_remove(%llu) = %d", guid
, error
);
2908 mutex_exit(&ztest_vdev_lock
);
2910 umem_free(path
, MAXPATHLEN
);
2914 * split a pool if it has mirror tlvdevs
2918 ztest_split_pool(ztest_ds_t
*zd
, uint64_t id
)
2920 ztest_shared_t
*zs
= ztest_shared
;
2921 spa_t
*spa
= ztest_spa
;
2922 vdev_t
*rvd
= spa
->spa_root_vdev
;
2923 nvlist_t
*tree
, **child
, *config
, *split
, **schild
;
2924 uint_t c
, children
, schildren
= 0, lastlogid
= 0;
2927 mutex_enter(&ztest_vdev_lock
);
2929 /* ensure we have a useable config; mirrors of raidz aren't supported */
2930 if (zs
->zs_mirrors
< 3 || ztest_opts
.zo_raidz
> 1) {
2931 mutex_exit(&ztest_vdev_lock
);
2935 /* clean up the old pool, if any */
2936 (void) spa_destroy("splitp");
2938 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2940 /* generate a config from the existing config */
2941 mutex_enter(&spa
->spa_props_lock
);
2942 VERIFY(nvlist_lookup_nvlist(spa
->spa_config
, ZPOOL_CONFIG_VDEV_TREE
,
2944 mutex_exit(&spa
->spa_props_lock
);
2946 VERIFY(nvlist_lookup_nvlist_array(tree
, ZPOOL_CONFIG_CHILDREN
, &child
,
2949 schild
= malloc(rvd
->vdev_children
* sizeof (nvlist_t
*));
2950 for (c
= 0; c
< children
; c
++) {
2951 vdev_t
*tvd
= rvd
->vdev_child
[c
];
2955 if (tvd
->vdev_islog
|| tvd
->vdev_ops
== &vdev_hole_ops
) {
2956 VERIFY(nvlist_alloc(&schild
[schildren
], NV_UNIQUE_NAME
,
2958 VERIFY(nvlist_add_string(schild
[schildren
],
2959 ZPOOL_CONFIG_TYPE
, VDEV_TYPE_HOLE
) == 0);
2960 VERIFY(nvlist_add_uint64(schild
[schildren
],
2961 ZPOOL_CONFIG_IS_HOLE
, 1) == 0);
2963 lastlogid
= schildren
;
2968 VERIFY(nvlist_lookup_nvlist_array(child
[c
],
2969 ZPOOL_CONFIG_CHILDREN
, &mchild
, &mchildren
) == 0);
2970 VERIFY(nvlist_dup(mchild
[0], &schild
[schildren
++], 0) == 0);
2973 /* OK, create a config that can be used to split */
2974 VERIFY(nvlist_alloc(&split
, NV_UNIQUE_NAME
, 0) == 0);
2975 VERIFY(nvlist_add_string(split
, ZPOOL_CONFIG_TYPE
,
2976 VDEV_TYPE_ROOT
) == 0);
2977 VERIFY(nvlist_add_nvlist_array(split
, ZPOOL_CONFIG_CHILDREN
, schild
,
2978 lastlogid
!= 0 ? lastlogid
: schildren
) == 0);
2980 VERIFY(nvlist_alloc(&config
, NV_UNIQUE_NAME
, 0) == 0);
2981 VERIFY(nvlist_add_nvlist(config
, ZPOOL_CONFIG_VDEV_TREE
, split
) == 0);
2983 for (c
= 0; c
< schildren
; c
++)
2984 nvlist_free(schild
[c
]);
2988 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2990 (void) rw_wrlock(&ztest_name_lock
);
2991 error
= spa_vdev_split_mirror(spa
, "splitp", config
, NULL
, B_FALSE
);
2992 (void) rw_unlock(&ztest_name_lock
);
2994 nvlist_free(config
);
2997 (void) printf("successful split - results:\n");
2998 mutex_enter(&spa_namespace_lock
);
2999 show_pool_stats(spa
);
3000 show_pool_stats(spa_lookup("splitp"));
3001 mutex_exit(&spa_namespace_lock
);
3005 mutex_exit(&ztest_vdev_lock
);
3010 * Verify that we can attach and detach devices.
3014 ztest_vdev_attach_detach(ztest_ds_t
*zd
, uint64_t id
)
3016 ztest_shared_t
*zs
= ztest_shared
;
3017 spa_t
*spa
= ztest_spa
;
3018 spa_aux_vdev_t
*sav
= &spa
->spa_spares
;
3019 vdev_t
*rvd
= spa
->spa_root_vdev
;
3020 vdev_t
*oldvd
, *newvd
, *pvd
;
3024 uint64_t ashift
= ztest_get_ashift();
3025 uint64_t oldguid
, pguid
;
3026 uint64_t oldsize
, newsize
;
3027 char *oldpath
, *newpath
;
3029 int oldvd_has_siblings
= B_FALSE
;
3030 int newvd_is_spare
= B_FALSE
;
3032 int error
, expected_error
;
3034 oldpath
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
3035 newpath
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
3037 mutex_enter(&ztest_vdev_lock
);
3038 leaves
= MAX(zs
->zs_mirrors
, 1) * ztest_opts
.zo_raidz
;
3040 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
3043 * Decide whether to do an attach or a replace.
3045 replacing
= ztest_random(2);
3048 * Pick a random top-level vdev.
3050 top
= ztest_random_vdev_top(spa
, B_TRUE
);
3053 * Pick a random leaf within it.
3055 leaf
= ztest_random(leaves
);
3060 oldvd
= rvd
->vdev_child
[top
];
3061 if (zs
->zs_mirrors
>= 1) {
3062 ASSERT(oldvd
->vdev_ops
== &vdev_mirror_ops
);
3063 ASSERT(oldvd
->vdev_children
>= zs
->zs_mirrors
);
3064 oldvd
= oldvd
->vdev_child
[leaf
/ ztest_opts
.zo_raidz
];
3066 if (ztest_opts
.zo_raidz
> 1) {
3067 ASSERT(oldvd
->vdev_ops
== &vdev_raidz_ops
);
3068 ASSERT(oldvd
->vdev_children
== ztest_opts
.zo_raidz
);
3069 oldvd
= oldvd
->vdev_child
[leaf
% ztest_opts
.zo_raidz
];
3073 * If we're already doing an attach or replace, oldvd may be a
3074 * mirror vdev -- in which case, pick a random child.
3076 while (oldvd
->vdev_children
!= 0) {
3077 oldvd_has_siblings
= B_TRUE
;
3078 ASSERT(oldvd
->vdev_children
>= 2);
3079 oldvd
= oldvd
->vdev_child
[ztest_random(oldvd
->vdev_children
)];
3082 oldguid
= oldvd
->vdev_guid
;
3083 oldsize
= vdev_get_min_asize(oldvd
);
3084 oldvd_is_log
= oldvd
->vdev_top
->vdev_islog
;
3085 (void) strcpy(oldpath
, oldvd
->vdev_path
);
3086 pvd
= oldvd
->vdev_parent
;
3087 pguid
= pvd
->vdev_guid
;
3090 * If oldvd has siblings, then half of the time, detach it.
3092 if (oldvd_has_siblings
&& ztest_random(2) == 0) {
3093 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
3094 error
= spa_vdev_detach(spa
, oldguid
, pguid
, B_FALSE
);
3095 if (error
!= 0 && error
!= ENODEV
&& error
!= EBUSY
&&
3097 fatal(0, "detach (%s) returned %d", oldpath
, error
);
3102 * For the new vdev, choose with equal probability between the two
3103 * standard paths (ending in either 'a' or 'b') or a random hot spare.
3105 if (sav
->sav_count
!= 0 && ztest_random(3) == 0) {
3106 newvd
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)];
3107 newvd_is_spare
= B_TRUE
;
3108 (void) strcpy(newpath
, newvd
->vdev_path
);
3110 (void) snprintf(newpath
, MAXPATHLEN
, ztest_dev_template
,
3111 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
3112 top
* leaves
+ leaf
);
3113 if (ztest_random(2) == 0)
3114 newpath
[strlen(newpath
) - 1] = 'b';
3115 newvd
= vdev_lookup_by_path(rvd
, newpath
);
3119 newsize
= vdev_get_min_asize(newvd
);
3122 * Make newsize a little bigger or smaller than oldsize.
3123 * If it's smaller, the attach should fail.
3124 * If it's larger, and we're doing a replace,
3125 * we should get dynamic LUN growth when we're done.
3127 newsize
= 10 * oldsize
/ (9 + ztest_random(3));
3131 * If pvd is not a mirror or root, the attach should fail with ENOTSUP,
3132 * unless it's a replace; in that case any non-replacing parent is OK.
3134 * If newvd is already part of the pool, it should fail with EBUSY.
3136 * If newvd is too small, it should fail with EOVERFLOW.
3138 if (pvd
->vdev_ops
!= &vdev_mirror_ops
&&
3139 pvd
->vdev_ops
!= &vdev_root_ops
&& (!replacing
||
3140 pvd
->vdev_ops
== &vdev_replacing_ops
||
3141 pvd
->vdev_ops
== &vdev_spare_ops
))
3142 expected_error
= ENOTSUP
;
3143 else if (newvd_is_spare
&& (!replacing
|| oldvd_is_log
))
3144 expected_error
= ENOTSUP
;
3145 else if (newvd
== oldvd
)
3146 expected_error
= replacing
? 0 : EBUSY
;
3147 else if (vdev_lookup_by_path(rvd
, newpath
) != NULL
)
3148 expected_error
= EBUSY
;
3149 else if (newsize
< oldsize
)
3150 expected_error
= EOVERFLOW
;
3151 else if (ashift
> oldvd
->vdev_top
->vdev_ashift
)
3152 expected_error
= EDOM
;
3156 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
3159 * Build the nvlist describing newpath.
3161 root
= make_vdev_root(newpath
, NULL
, NULL
, newvd
== NULL
? newsize
: 0,
3162 ashift
, 0, 0, 0, 1);
3164 error
= spa_vdev_attach(spa
, oldguid
, root
, replacing
);
3169 * If our parent was the replacing vdev, but the replace completed,
3170 * then instead of failing with ENOTSUP we may either succeed,
3171 * fail with ENODEV, or fail with EOVERFLOW.
3173 if (expected_error
== ENOTSUP
&&
3174 (error
== 0 || error
== ENODEV
|| error
== EOVERFLOW
))
3175 expected_error
= error
;
3178 * If someone grew the LUN, the replacement may be too small.
3180 if (error
== EOVERFLOW
|| error
== EBUSY
)
3181 expected_error
= error
;
3183 /* XXX workaround 6690467 */
3184 if (error
!= expected_error
&& expected_error
!= EBUSY
) {
3185 fatal(0, "attach (%s %llu, %s %llu, %d) "
3186 "returned %d, expected %d",
3187 oldpath
, oldsize
, newpath
,
3188 newsize
, replacing
, error
, expected_error
);
3191 mutex_exit(&ztest_vdev_lock
);
3193 umem_free(oldpath
, MAXPATHLEN
);
3194 umem_free(newpath
, MAXPATHLEN
);
3198 * Callback function which expands the physical size of the vdev.
3201 grow_vdev(vdev_t
*vd
, void *arg
)
3203 ASSERTV(spa_t
*spa
= vd
->vdev_spa
);
3204 size_t *newsize
= arg
;
3208 ASSERT(spa_config_held(spa
, SCL_STATE
, RW_READER
) == SCL_STATE
);
3209 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
3211 if ((fd
= open(vd
->vdev_path
, O_RDWR
)) == -1)
3214 fsize
= lseek(fd
, 0, SEEK_END
);
3215 VERIFY(ftruncate(fd
, *newsize
) == 0);
3217 if (ztest_opts
.zo_verbose
>= 6) {
3218 (void) printf("%s grew from %lu to %lu bytes\n",
3219 vd
->vdev_path
, (ulong_t
)fsize
, (ulong_t
)*newsize
);
3226 * Callback function which expands a given vdev by calling vdev_online().
3230 online_vdev(vdev_t
*vd
, void *arg
)
3232 spa_t
*spa
= vd
->vdev_spa
;
3233 vdev_t
*tvd
= vd
->vdev_top
;
3234 uint64_t guid
= vd
->vdev_guid
;
3235 uint64_t generation
= spa
->spa_config_generation
+ 1;
3236 vdev_state_t newstate
= VDEV_STATE_UNKNOWN
;
3239 ASSERT(spa_config_held(spa
, SCL_STATE
, RW_READER
) == SCL_STATE
);
3240 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
3242 /* Calling vdev_online will initialize the new metaslabs */
3243 spa_config_exit(spa
, SCL_STATE
, spa
);
3244 error
= vdev_online(spa
, guid
, ZFS_ONLINE_EXPAND
, &newstate
);
3245 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3248 * If vdev_online returned an error or the underlying vdev_open
3249 * failed then we abort the expand. The only way to know that
3250 * vdev_open fails is by checking the returned newstate.
3252 if (error
|| newstate
!= VDEV_STATE_HEALTHY
) {
3253 if (ztest_opts
.zo_verbose
>= 5) {
3254 (void) printf("Unable to expand vdev, state %llu, "
3255 "error %d\n", (u_longlong_t
)newstate
, error
);
3259 ASSERT3U(newstate
, ==, VDEV_STATE_HEALTHY
);
3262 * Since we dropped the lock we need to ensure that we're
3263 * still talking to the original vdev. It's possible this
3264 * vdev may have been detached/replaced while we were
3265 * trying to online it.
3267 if (generation
!= spa
->spa_config_generation
) {
3268 if (ztest_opts
.zo_verbose
>= 5) {
3269 (void) printf("vdev configuration has changed, "
3270 "guid %llu, state %llu, expected gen %llu, "
3273 (u_longlong_t
)tvd
->vdev_state
,
3274 (u_longlong_t
)generation
,
3275 (u_longlong_t
)spa
->spa_config_generation
);
3283 * Traverse the vdev tree calling the supplied function.
3284 * We continue to walk the tree until we either have walked all
3285 * children or we receive a non-NULL return from the callback.
3286 * If a NULL callback is passed, then we just return back the first
3287 * leaf vdev we encounter.
3290 vdev_walk_tree(vdev_t
*vd
, vdev_t
*(*func
)(vdev_t
*, void *), void *arg
)
3294 if (vd
->vdev_ops
->vdev_op_leaf
) {
3298 return (func(vd
, arg
));
3301 for (c
= 0; c
< vd
->vdev_children
; c
++) {
3302 vdev_t
*cvd
= vd
->vdev_child
[c
];
3303 if ((cvd
= vdev_walk_tree(cvd
, func
, arg
)) != NULL
)
3310 * Verify that dynamic LUN growth works as expected.
3314 ztest_vdev_LUN_growth(ztest_ds_t
*zd
, uint64_t id
)
3316 spa_t
*spa
= ztest_spa
;
3318 metaslab_class_t
*mc
;
3319 metaslab_group_t
*mg
;
3320 size_t psize
, newsize
;
3322 uint64_t old_class_space
, new_class_space
, old_ms_count
, new_ms_count
;
3324 mutex_enter(&ztest_vdev_lock
);
3325 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3327 top
= ztest_random_vdev_top(spa
, B_TRUE
);
3329 tvd
= spa
->spa_root_vdev
->vdev_child
[top
];
3332 old_ms_count
= tvd
->vdev_ms_count
;
3333 old_class_space
= metaslab_class_get_space(mc
);
3336 * Determine the size of the first leaf vdev associated with
3337 * our top-level device.
3339 vd
= vdev_walk_tree(tvd
, NULL
, NULL
);
3340 ASSERT3P(vd
, !=, NULL
);
3341 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
3343 psize
= vd
->vdev_psize
;
3346 * We only try to expand the vdev if it's healthy, less than 4x its
3347 * original size, and it has a valid psize.
3349 if (tvd
->vdev_state
!= VDEV_STATE_HEALTHY
||
3350 psize
== 0 || psize
>= 4 * ztest_opts
.zo_vdev_size
) {
3351 spa_config_exit(spa
, SCL_STATE
, spa
);
3352 mutex_exit(&ztest_vdev_lock
);
3356 newsize
= psize
+ psize
/ 8;
3357 ASSERT3U(newsize
, >, psize
);
3359 if (ztest_opts
.zo_verbose
>= 6) {
3360 (void) printf("Expanding LUN %s from %lu to %lu\n",
3361 vd
->vdev_path
, (ulong_t
)psize
, (ulong_t
)newsize
);
3365 * Growing the vdev is a two step process:
3366 * 1). expand the physical size (i.e. relabel)
3367 * 2). online the vdev to create the new metaslabs
3369 if (vdev_walk_tree(tvd
, grow_vdev
, &newsize
) != NULL
||
3370 vdev_walk_tree(tvd
, online_vdev
, NULL
) != NULL
||
3371 tvd
->vdev_state
!= VDEV_STATE_HEALTHY
) {
3372 if (ztest_opts
.zo_verbose
>= 5) {
3373 (void) printf("Could not expand LUN because "
3374 "the vdev configuration changed.\n");
3376 spa_config_exit(spa
, SCL_STATE
, spa
);
3377 mutex_exit(&ztest_vdev_lock
);
3381 spa_config_exit(spa
, SCL_STATE
, spa
);
3384 * Expanding the LUN will update the config asynchronously,
3385 * thus we must wait for the async thread to complete any
3386 * pending tasks before proceeding.
3390 mutex_enter(&spa
->spa_async_lock
);
3391 done
= (spa
->spa_async_thread
== NULL
&& !spa
->spa_async_tasks
);
3392 mutex_exit(&spa
->spa_async_lock
);
3395 txg_wait_synced(spa_get_dsl(spa
), 0);
3396 (void) poll(NULL
, 0, 100);
3399 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3401 tvd
= spa
->spa_root_vdev
->vdev_child
[top
];
3402 new_ms_count
= tvd
->vdev_ms_count
;
3403 new_class_space
= metaslab_class_get_space(mc
);
3405 if (tvd
->vdev_mg
!= mg
|| mg
->mg_class
!= mc
) {
3406 if (ztest_opts
.zo_verbose
>= 5) {
3407 (void) printf("Could not verify LUN expansion due to "
3408 "intervening vdev offline or remove.\n");
3410 spa_config_exit(spa
, SCL_STATE
, spa
);
3411 mutex_exit(&ztest_vdev_lock
);
3416 * Make sure we were able to grow the vdev.
3418 if (new_ms_count
<= old_ms_count
)
3419 fatal(0, "LUN expansion failed: ms_count %llu <= %llu\n",
3420 old_ms_count
, new_ms_count
);
3423 * Make sure we were able to grow the pool.
3425 if (new_class_space
<= old_class_space
)
3426 fatal(0, "LUN expansion failed: class_space %llu <= %llu\n",
3427 old_class_space
, new_class_space
);
3429 if (ztest_opts
.zo_verbose
>= 5) {
3430 char oldnumbuf
[6], newnumbuf
[6];
3432 nicenum(old_class_space
, oldnumbuf
);
3433 nicenum(new_class_space
, newnumbuf
);
3434 (void) printf("%s grew from %s to %s\n",
3435 spa
->spa_name
, oldnumbuf
, newnumbuf
);
3438 spa_config_exit(spa
, SCL_STATE
, spa
);
3439 mutex_exit(&ztest_vdev_lock
);
3443 * Verify that dmu_objset_{create,destroy,open,close} work as expected.
3447 ztest_objset_create_cb(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
)
3450 * Create the objects common to all ztest datasets.
3452 VERIFY(zap_create_claim(os
, ZTEST_DIROBJ
,
3453 DMU_OT_ZAP_OTHER
, DMU_OT_NONE
, 0, tx
) == 0);
3457 ztest_dataset_create(char *dsname
)
3459 uint64_t zilset
= ztest_random(100);
3460 int err
= dmu_objset_create(dsname
, DMU_OST_OTHER
, 0,
3461 ztest_objset_create_cb
, NULL
);
3463 if (err
|| zilset
< 80)
3466 if (ztest_opts
.zo_verbose
>= 5)
3467 (void) printf("Setting dataset %s to sync always\n", dsname
);
3468 return (ztest_dsl_prop_set_uint64(dsname
, ZFS_PROP_SYNC
,
3469 ZFS_SYNC_ALWAYS
, B_FALSE
));
3474 ztest_objset_destroy_cb(const char *name
, void *arg
)
3477 dmu_object_info_t doi
;
3481 * Verify that the dataset contains a directory object.
3483 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_TRUE
, FTAG
, &os
));
3484 error
= dmu_object_info(os
, ZTEST_DIROBJ
, &doi
);
3485 if (error
!= ENOENT
) {
3486 /* We could have crashed in the middle of destroying it */
3488 ASSERT3U(doi
.doi_type
, ==, DMU_OT_ZAP_OTHER
);
3489 ASSERT3S(doi
.doi_physical_blocks_512
, >=, 0);
3491 dmu_objset_disown(os
, FTAG
);
3494 * Destroy the dataset.
3496 if (strchr(name
, '@') != NULL
) {
3497 VERIFY0(dsl_destroy_snapshot(name
, B_FALSE
));
3499 VERIFY0(dsl_destroy_head(name
));
3505 ztest_snapshot_create(char *osname
, uint64_t id
)
3507 char snapname
[MAXNAMELEN
];
3510 (void) snprintf(snapname
, sizeof (snapname
), "%llu", (u_longlong_t
)id
);
3512 error
= dmu_objset_snapshot_one(osname
, snapname
);
3513 if (error
== ENOSPC
) {
3514 ztest_record_enospc(FTAG
);
3517 if (error
!= 0 && error
!= EEXIST
) {
3518 fatal(0, "ztest_snapshot_create(%s@%s) = %d", osname
,
3525 ztest_snapshot_destroy(char *osname
, uint64_t id
)
3527 char snapname
[MAXNAMELEN
];
3530 (void) snprintf(snapname
, MAXNAMELEN
, "%s@%llu", osname
,
3533 error
= dsl_destroy_snapshot(snapname
, B_FALSE
);
3534 if (error
!= 0 && error
!= ENOENT
)
3535 fatal(0, "ztest_snapshot_destroy(%s) = %d", snapname
, error
);
3541 ztest_dmu_objset_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
3551 zdtmp
= umem_alloc(sizeof (ztest_ds_t
), UMEM_NOFAIL
);
3552 name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3554 (void) rw_rdlock(&ztest_name_lock
);
3556 (void) snprintf(name
, MAXNAMELEN
, "%s/temp_%llu",
3557 ztest_opts
.zo_pool
, (u_longlong_t
)id
);
3560 * If this dataset exists from a previous run, process its replay log
3561 * half of the time. If we don't replay it, then dsl_destroy_head()
3562 * (invoked from ztest_objset_destroy_cb()) should just throw it away.
3564 if (ztest_random(2) == 0 &&
3565 dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os
) == 0) {
3566 ztest_zd_init(zdtmp
, NULL
, os
);
3567 zil_replay(os
, zdtmp
, ztest_replay_vector
);
3568 ztest_zd_fini(zdtmp
);
3569 dmu_objset_disown(os
, FTAG
);
3573 * There may be an old instance of the dataset we're about to
3574 * create lying around from a previous run. If so, destroy it
3575 * and all of its snapshots.
3577 (void) dmu_objset_find(name
, ztest_objset_destroy_cb
, NULL
,
3578 DS_FIND_CHILDREN
| DS_FIND_SNAPSHOTS
);
3581 * Verify that the destroyed dataset is no longer in the namespace.
3583 VERIFY3U(ENOENT
, ==, dmu_objset_own(name
, DMU_OST_OTHER
, B_TRUE
,
3587 * Verify that we can create a new dataset.
3589 error
= ztest_dataset_create(name
);
3591 if (error
== ENOSPC
) {
3592 ztest_record_enospc(FTAG
);
3595 fatal(0, "dmu_objset_create(%s) = %d", name
, error
);
3598 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os
));
3600 ztest_zd_init(zdtmp
, NULL
, os
);
3603 * Open the intent log for it.
3605 zilog
= zil_open(os
, ztest_get_data
);
3608 * Put some objects in there, do a little I/O to them,
3609 * and randomly take a couple of snapshots along the way.
3611 iters
= ztest_random(5);
3612 for (i
= 0; i
< iters
; i
++) {
3613 ztest_dmu_object_alloc_free(zdtmp
, id
);
3614 if (ztest_random(iters
) == 0)
3615 (void) ztest_snapshot_create(name
, i
);
3619 * Verify that we cannot create an existing dataset.
3621 VERIFY3U(EEXIST
, ==,
3622 dmu_objset_create(name
, DMU_OST_OTHER
, 0, NULL
, NULL
));
3625 * Verify that we can hold an objset that is also owned.
3627 VERIFY3U(0, ==, dmu_objset_hold(name
, FTAG
, &os2
));
3628 dmu_objset_rele(os2
, FTAG
);
3631 * Verify that we cannot own an objset that is already owned.
3634 dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os2
));
3637 dmu_objset_disown(os
, FTAG
);
3638 ztest_zd_fini(zdtmp
);
3640 (void) rw_unlock(&ztest_name_lock
);
3642 umem_free(name
, MAXNAMELEN
);
3643 umem_free(zdtmp
, sizeof (ztest_ds_t
));
3647 * Verify that dmu_snapshot_{create,destroy,open,close} work as expected.
3650 ztest_dmu_snapshot_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
3652 (void) rw_rdlock(&ztest_name_lock
);
3653 (void) ztest_snapshot_destroy(zd
->zd_name
, id
);
3654 (void) ztest_snapshot_create(zd
->zd_name
, id
);
3655 (void) rw_unlock(&ztest_name_lock
);
3659 * Cleanup non-standard snapshots and clones.
3662 ztest_dsl_dataset_cleanup(char *osname
, uint64_t id
)
3671 snap1name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3672 clone1name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3673 snap2name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3674 clone2name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3675 snap3name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3677 (void) snprintf(snap1name
, MAXNAMELEN
, "%s@s1_%llu",
3678 osname
, (u_longlong_t
)id
);
3679 (void) snprintf(clone1name
, MAXNAMELEN
, "%s/c1_%llu",
3680 osname
, (u_longlong_t
)id
);
3681 (void) snprintf(snap2name
, MAXNAMELEN
, "%s@s2_%llu",
3682 clone1name
, (u_longlong_t
)id
);
3683 (void) snprintf(clone2name
, MAXNAMELEN
, "%s/c2_%llu",
3684 osname
, (u_longlong_t
)id
);
3685 (void) snprintf(snap3name
, MAXNAMELEN
, "%s@s3_%llu",
3686 clone1name
, (u_longlong_t
)id
);
3688 error
= dsl_destroy_head(clone2name
);
3689 if (error
&& error
!= ENOENT
)
3690 fatal(0, "dsl_destroy_head(%s) = %d", clone2name
, error
);
3691 error
= dsl_destroy_snapshot(snap3name
, B_FALSE
);
3692 if (error
&& error
!= ENOENT
)
3693 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap3name
, error
);
3694 error
= dsl_destroy_snapshot(snap2name
, B_FALSE
);
3695 if (error
&& error
!= ENOENT
)
3696 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap2name
, error
);
3697 error
= dsl_destroy_head(clone1name
);
3698 if (error
&& error
!= ENOENT
)
3699 fatal(0, "dsl_destroy_head(%s) = %d", clone1name
, error
);
3700 error
= dsl_destroy_snapshot(snap1name
, B_FALSE
);
3701 if (error
&& error
!= ENOENT
)
3702 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap1name
, error
);
3704 umem_free(snap1name
, MAXNAMELEN
);
3705 umem_free(clone1name
, MAXNAMELEN
);
3706 umem_free(snap2name
, MAXNAMELEN
);
3707 umem_free(clone2name
, MAXNAMELEN
);
3708 umem_free(snap3name
, MAXNAMELEN
);
3712 * Verify dsl_dataset_promote handles EBUSY
3715 ztest_dsl_dataset_promote_busy(ztest_ds_t
*zd
, uint64_t id
)
3723 char *osname
= zd
->zd_name
;
3726 snap1name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3727 clone1name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3728 snap2name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3729 clone2name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3730 snap3name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3732 (void) rw_rdlock(&ztest_name_lock
);
3734 ztest_dsl_dataset_cleanup(osname
, id
);
3736 (void) snprintf(snap1name
, MAXNAMELEN
, "%s@s1_%llu",
3737 osname
, (u_longlong_t
)id
);
3738 (void) snprintf(clone1name
, MAXNAMELEN
, "%s/c1_%llu",
3739 osname
, (u_longlong_t
)id
);
3740 (void) snprintf(snap2name
, MAXNAMELEN
, "%s@s2_%llu",
3741 clone1name
, (u_longlong_t
)id
);
3742 (void) snprintf(clone2name
, MAXNAMELEN
, "%s/c2_%llu",
3743 osname
, (u_longlong_t
)id
);
3744 (void) snprintf(snap3name
, MAXNAMELEN
, "%s@s3_%llu",
3745 clone1name
, (u_longlong_t
)id
);
3747 error
= dmu_objset_snapshot_one(osname
, strchr(snap1name
, '@') + 1);
3748 if (error
&& error
!= EEXIST
) {
3749 if (error
== ENOSPC
) {
3750 ztest_record_enospc(FTAG
);
3753 fatal(0, "dmu_take_snapshot(%s) = %d", snap1name
, error
);
3756 error
= dmu_objset_clone(clone1name
, snap1name
);
3758 if (error
== ENOSPC
) {
3759 ztest_record_enospc(FTAG
);
3762 fatal(0, "dmu_objset_create(%s) = %d", clone1name
, error
);
3765 error
= dmu_objset_snapshot_one(clone1name
, strchr(snap2name
, '@') + 1);
3766 if (error
&& error
!= EEXIST
) {
3767 if (error
== ENOSPC
) {
3768 ztest_record_enospc(FTAG
);
3771 fatal(0, "dmu_open_snapshot(%s) = %d", snap2name
, error
);
3774 error
= dmu_objset_snapshot_one(clone1name
, strchr(snap3name
, '@') + 1);
3775 if (error
&& error
!= EEXIST
) {
3776 if (error
== ENOSPC
) {
3777 ztest_record_enospc(FTAG
);
3780 fatal(0, "dmu_open_snapshot(%s) = %d", snap3name
, error
);
3783 error
= dmu_objset_clone(clone2name
, snap3name
);
3785 if (error
== ENOSPC
) {
3786 ztest_record_enospc(FTAG
);
3789 fatal(0, "dmu_objset_create(%s) = %d", clone2name
, error
);
3792 error
= dmu_objset_own(snap2name
, DMU_OST_ANY
, B_TRUE
, FTAG
, &os
);
3794 fatal(0, "dmu_objset_own(%s) = %d", snap2name
, error
);
3795 error
= dsl_dataset_promote(clone2name
, NULL
);
3796 if (error
== ENOSPC
) {
3797 dmu_objset_disown(os
, FTAG
);
3798 ztest_record_enospc(FTAG
);
3802 fatal(0, "dsl_dataset_promote(%s), %d, not EBUSY", clone2name
,
3804 dmu_objset_disown(os
, FTAG
);
3807 ztest_dsl_dataset_cleanup(osname
, id
);
3809 (void) rw_unlock(&ztest_name_lock
);
3811 umem_free(snap1name
, MAXNAMELEN
);
3812 umem_free(clone1name
, MAXNAMELEN
);
3813 umem_free(snap2name
, MAXNAMELEN
);
3814 umem_free(clone2name
, MAXNAMELEN
);
3815 umem_free(snap3name
, MAXNAMELEN
);
3818 #undef OD_ARRAY_SIZE
3819 #define OD_ARRAY_SIZE 4
3822 * Verify that dmu_object_{alloc,free} work as expected.
3825 ztest_dmu_object_alloc_free(ztest_ds_t
*zd
, uint64_t id
)
3832 size
= sizeof (ztest_od_t
) * OD_ARRAY_SIZE
;
3833 od
= umem_alloc(size
, UMEM_NOFAIL
);
3834 batchsize
= OD_ARRAY_SIZE
;
3836 for (b
= 0; b
< batchsize
; b
++)
3837 ztest_od_init(od
+ b
, id
, FTAG
, b
, DMU_OT_UINT64_OTHER
,
3841 * Destroy the previous batch of objects, create a new batch,
3842 * and do some I/O on the new objects.
3844 if (ztest_object_init(zd
, od
, size
, B_TRUE
) != 0)
3847 while (ztest_random(4 * batchsize
) != 0)
3848 ztest_io(zd
, od
[ztest_random(batchsize
)].od_object
,
3849 ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
3851 umem_free(od
, size
);
3854 #undef OD_ARRAY_SIZE
3855 #define OD_ARRAY_SIZE 2
3858 * Verify that dmu_{read,write} work as expected.
3861 ztest_dmu_read_write(ztest_ds_t
*zd
, uint64_t id
)
3866 objset_t
*os
= zd
->zd_os
;
3867 size
= sizeof (ztest_od_t
) * OD_ARRAY_SIZE
;
3868 od
= umem_alloc(size
, UMEM_NOFAIL
);
3870 int i
, freeit
, error
;
3872 bufwad_t
*packbuf
, *bigbuf
, *pack
, *bigH
, *bigT
;
3873 uint64_t packobj
, packoff
, packsize
, bigobj
, bigoff
, bigsize
;
3874 uint64_t chunksize
= (1000 + ztest_random(1000)) * sizeof (uint64_t);
3875 uint64_t regions
= 997;
3876 uint64_t stride
= 123456789ULL;
3877 uint64_t width
= 40;
3878 int free_percent
= 5;
3881 * This test uses two objects, packobj and bigobj, that are always
3882 * updated together (i.e. in the same tx) so that their contents are
3883 * in sync and can be compared. Their contents relate to each other
3884 * in a simple way: packobj is a dense array of 'bufwad' structures,
3885 * while bigobj is a sparse array of the same bufwads. Specifically,
3886 * for any index n, there are three bufwads that should be identical:
3888 * packobj, at offset n * sizeof (bufwad_t)
3889 * bigobj, at the head of the nth chunk
3890 * bigobj, at the tail of the nth chunk
3892 * The chunk size is arbitrary. It doesn't have to be a power of two,
3893 * and it doesn't have any relation to the object blocksize.
3894 * The only requirement is that it can hold at least two bufwads.
3896 * Normally, we write the bufwad to each of these locations.
3897 * However, free_percent of the time we instead write zeroes to
3898 * packobj and perform a dmu_free_range() on bigobj. By comparing
3899 * bigobj to packobj, we can verify that the DMU is correctly
3900 * tracking which parts of an object are allocated and free,
3901 * and that the contents of the allocated blocks are correct.
3905 * Read the directory info. If it's the first time, set things up.
3907 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0, chunksize
);
3908 ztest_od_init(od
+ 1, id
, FTAG
, 1, DMU_OT_UINT64_OTHER
, 0, 0,
3911 if (ztest_object_init(zd
, od
, size
, B_FALSE
) != 0) {
3912 umem_free(od
, size
);
3916 bigobj
= od
[0].od_object
;
3917 packobj
= od
[1].od_object
;
3918 chunksize
= od
[0].od_gen
;
3919 ASSERT(chunksize
== od
[1].od_gen
);
3922 * Prefetch a random chunk of the big object.
3923 * Our aim here is to get some async reads in flight
3924 * for blocks that we may free below; the DMU should
3925 * handle this race correctly.
3927 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
3928 s
= 1 + ztest_random(2 * width
- 1);
3929 dmu_prefetch(os
, bigobj
, 0, n
* chunksize
, s
* chunksize
,
3930 ZIO_PRIORITY_SYNC_READ
);
3933 * Pick a random index and compute the offsets into packobj and bigobj.
3935 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
3936 s
= 1 + ztest_random(width
- 1);
3938 packoff
= n
* sizeof (bufwad_t
);
3939 packsize
= s
* sizeof (bufwad_t
);
3941 bigoff
= n
* chunksize
;
3942 bigsize
= s
* chunksize
;
3944 packbuf
= umem_alloc(packsize
, UMEM_NOFAIL
);
3945 bigbuf
= umem_alloc(bigsize
, UMEM_NOFAIL
);
3948 * free_percent of the time, free a range of bigobj rather than
3951 freeit
= (ztest_random(100) < free_percent
);
3954 * Read the current contents of our objects.
3956 error
= dmu_read(os
, packobj
, packoff
, packsize
, packbuf
,
3959 error
= dmu_read(os
, bigobj
, bigoff
, bigsize
, bigbuf
,
3964 * Get a tx for the mods to both packobj and bigobj.
3966 tx
= dmu_tx_create(os
);
3968 dmu_tx_hold_write(tx
, packobj
, packoff
, packsize
);
3971 dmu_tx_hold_free(tx
, bigobj
, bigoff
, bigsize
);
3973 dmu_tx_hold_write(tx
, bigobj
, bigoff
, bigsize
);
3975 /* This accounts for setting the checksum/compression. */
3976 dmu_tx_hold_bonus(tx
, bigobj
);
3978 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
3980 umem_free(packbuf
, packsize
);
3981 umem_free(bigbuf
, bigsize
);
3982 umem_free(od
, size
);
3986 enum zio_checksum cksum
;
3988 cksum
= (enum zio_checksum
)
3989 ztest_random_dsl_prop(ZFS_PROP_CHECKSUM
);
3990 } while (cksum
>= ZIO_CHECKSUM_LEGACY_FUNCTIONS
);
3991 dmu_object_set_checksum(os
, bigobj
, cksum
, tx
);
3993 enum zio_compress comp
;
3995 comp
= (enum zio_compress
)
3996 ztest_random_dsl_prop(ZFS_PROP_COMPRESSION
);
3997 } while (comp
>= ZIO_COMPRESS_LEGACY_FUNCTIONS
);
3998 dmu_object_set_compress(os
, bigobj
, comp
, tx
);
4001 * For each index from n to n + s, verify that the existing bufwad
4002 * in packobj matches the bufwads at the head and tail of the
4003 * corresponding chunk in bigobj. Then update all three bufwads
4004 * with the new values we want to write out.
4006 for (i
= 0; i
< s
; i
++) {
4008 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
4010 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* chunksize
);
4012 bigT
= (bufwad_t
*)((char *)bigH
+ chunksize
) - 1;
4014 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
4015 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
4017 if (pack
->bw_txg
> txg
)
4018 fatal(0, "future leak: got %llx, open txg is %llx",
4021 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
4022 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
4023 pack
->bw_index
, n
, i
);
4025 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
4026 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
4028 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
4029 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
4032 bzero(pack
, sizeof (bufwad_t
));
4034 pack
->bw_index
= n
+ i
;
4036 pack
->bw_data
= 1 + ztest_random(-2ULL);
4043 * We've verified all the old bufwads, and made new ones.
4044 * Now write them out.
4046 dmu_write(os
, packobj
, packoff
, packsize
, packbuf
, tx
);
4049 if (ztest_opts
.zo_verbose
>= 7) {
4050 (void) printf("freeing offset %llx size %llx"
4052 (u_longlong_t
)bigoff
,
4053 (u_longlong_t
)bigsize
,
4056 VERIFY(0 == dmu_free_range(os
, bigobj
, bigoff
, bigsize
, tx
));
4058 if (ztest_opts
.zo_verbose
>= 7) {
4059 (void) printf("writing offset %llx size %llx"
4061 (u_longlong_t
)bigoff
,
4062 (u_longlong_t
)bigsize
,
4065 dmu_write(os
, bigobj
, bigoff
, bigsize
, bigbuf
, tx
);
4071 * Sanity check the stuff we just wrote.
4074 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
4075 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
4077 VERIFY(0 == dmu_read(os
, packobj
, packoff
,
4078 packsize
, packcheck
, DMU_READ_PREFETCH
));
4079 VERIFY(0 == dmu_read(os
, bigobj
, bigoff
,
4080 bigsize
, bigcheck
, DMU_READ_PREFETCH
));
4082 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
4083 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
4085 umem_free(packcheck
, packsize
);
4086 umem_free(bigcheck
, bigsize
);
4089 umem_free(packbuf
, packsize
);
4090 umem_free(bigbuf
, bigsize
);
4091 umem_free(od
, size
);
4095 compare_and_update_pbbufs(uint64_t s
, bufwad_t
*packbuf
, bufwad_t
*bigbuf
,
4096 uint64_t bigsize
, uint64_t n
, uint64_t chunksize
, uint64_t txg
)
4104 * For each index from n to n + s, verify that the existing bufwad
4105 * in packobj matches the bufwads at the head and tail of the
4106 * corresponding chunk in bigobj. Then update all three bufwads
4107 * with the new values we want to write out.
4109 for (i
= 0; i
< s
; i
++) {
4111 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
4113 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* chunksize
);
4115 bigT
= (bufwad_t
*)((char *)bigH
+ chunksize
) - 1;
4117 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
4118 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
4120 if (pack
->bw_txg
> txg
)
4121 fatal(0, "future leak: got %llx, open txg is %llx",
4124 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
4125 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
4126 pack
->bw_index
, n
, i
);
4128 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
4129 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
4131 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
4132 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
4134 pack
->bw_index
= n
+ i
;
4136 pack
->bw_data
= 1 + ztest_random(-2ULL);
4143 #undef OD_ARRAY_SIZE
4144 #define OD_ARRAY_SIZE 2
4147 ztest_dmu_read_write_zcopy(ztest_ds_t
*zd
, uint64_t id
)
4149 objset_t
*os
= zd
->zd_os
;
4156 bufwad_t
*packbuf
, *bigbuf
;
4157 uint64_t packobj
, packoff
, packsize
, bigobj
, bigoff
, bigsize
;
4158 uint64_t blocksize
= ztest_random_blocksize();
4159 uint64_t chunksize
= blocksize
;
4160 uint64_t regions
= 997;
4161 uint64_t stride
= 123456789ULL;
4163 dmu_buf_t
*bonus_db
;
4164 arc_buf_t
**bigbuf_arcbufs
;
4165 dmu_object_info_t doi
;
4167 size
= sizeof (ztest_od_t
) * OD_ARRAY_SIZE
;
4168 od
= umem_alloc(size
, UMEM_NOFAIL
);
4171 * This test uses two objects, packobj and bigobj, that are always
4172 * updated together (i.e. in the same tx) so that their contents are
4173 * in sync and can be compared. Their contents relate to each other
4174 * in a simple way: packobj is a dense array of 'bufwad' structures,
4175 * while bigobj is a sparse array of the same bufwads. Specifically,
4176 * for any index n, there are three bufwads that should be identical:
4178 * packobj, at offset n * sizeof (bufwad_t)
4179 * bigobj, at the head of the nth chunk
4180 * bigobj, at the tail of the nth chunk
4182 * The chunk size is set equal to bigobj block size so that
4183 * dmu_assign_arcbuf() can be tested for object updates.
4187 * Read the directory info. If it's the first time, set things up.
4189 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0, 0);
4190 ztest_od_init(od
+ 1, id
, FTAG
, 1, DMU_OT_UINT64_OTHER
, 0, 0,
4194 if (ztest_object_init(zd
, od
, size
, B_FALSE
) != 0) {
4195 umem_free(od
, size
);
4199 bigobj
= od
[0].od_object
;
4200 packobj
= od
[1].od_object
;
4201 blocksize
= od
[0].od_blocksize
;
4202 chunksize
= blocksize
;
4203 ASSERT(chunksize
== od
[1].od_gen
);
4205 VERIFY(dmu_object_info(os
, bigobj
, &doi
) == 0);
4206 VERIFY(ISP2(doi
.doi_data_block_size
));
4207 VERIFY(chunksize
== doi
.doi_data_block_size
);
4208 VERIFY(chunksize
>= 2 * sizeof (bufwad_t
));
4211 * Pick a random index and compute the offsets into packobj and bigobj.
4213 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
4214 s
= 1 + ztest_random(width
- 1);
4216 packoff
= n
* sizeof (bufwad_t
);
4217 packsize
= s
* sizeof (bufwad_t
);
4219 bigoff
= n
* chunksize
;
4220 bigsize
= s
* chunksize
;
4222 packbuf
= umem_zalloc(packsize
, UMEM_NOFAIL
);
4223 bigbuf
= umem_zalloc(bigsize
, UMEM_NOFAIL
);
4225 VERIFY3U(0, ==, dmu_bonus_hold(os
, bigobj
, FTAG
, &bonus_db
));
4227 bigbuf_arcbufs
= umem_zalloc(2 * s
* sizeof (arc_buf_t
*), UMEM_NOFAIL
);
4230 * Iteration 0 test zcopy for DB_UNCACHED dbufs.
4231 * Iteration 1 test zcopy to already referenced dbufs.
4232 * Iteration 2 test zcopy to dirty dbuf in the same txg.
4233 * Iteration 3 test zcopy to dbuf dirty in previous txg.
4234 * Iteration 4 test zcopy when dbuf is no longer dirty.
4235 * Iteration 5 test zcopy when it can't be done.
4236 * Iteration 6 one more zcopy write.
4238 for (i
= 0; i
< 7; i
++) {
4243 * In iteration 5 (i == 5) use arcbufs
4244 * that don't match bigobj blksz to test
4245 * dmu_assign_arcbuf() when it can't directly
4246 * assign an arcbuf to a dbuf.
4248 for (j
= 0; j
< s
; j
++) {
4249 if (i
!= 5 || chunksize
< (SPA_MINBLOCKSIZE
* 2)) {
4251 dmu_request_arcbuf(bonus_db
, chunksize
);
4253 bigbuf_arcbufs
[2 * j
] =
4254 dmu_request_arcbuf(bonus_db
, chunksize
/ 2);
4255 bigbuf_arcbufs
[2 * j
+ 1] =
4256 dmu_request_arcbuf(bonus_db
, chunksize
/ 2);
4261 * Get a tx for the mods to both packobj and bigobj.
4263 tx
= dmu_tx_create(os
);
4265 dmu_tx_hold_write(tx
, packobj
, packoff
, packsize
);
4266 dmu_tx_hold_write(tx
, bigobj
, bigoff
, bigsize
);
4268 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4270 umem_free(packbuf
, packsize
);
4271 umem_free(bigbuf
, bigsize
);
4272 for (j
= 0; j
< s
; j
++) {
4274 chunksize
< (SPA_MINBLOCKSIZE
* 2)) {
4275 dmu_return_arcbuf(bigbuf_arcbufs
[j
]);
4278 bigbuf_arcbufs
[2 * j
]);
4280 bigbuf_arcbufs
[2 * j
+ 1]);
4283 umem_free(bigbuf_arcbufs
, 2 * s
* sizeof (arc_buf_t
*));
4284 umem_free(od
, size
);
4285 dmu_buf_rele(bonus_db
, FTAG
);
4290 * 50% of the time don't read objects in the 1st iteration to
4291 * test dmu_assign_arcbuf() for the case when there're no
4292 * existing dbufs for the specified offsets.
4294 if (i
!= 0 || ztest_random(2) != 0) {
4295 error
= dmu_read(os
, packobj
, packoff
,
4296 packsize
, packbuf
, DMU_READ_PREFETCH
);
4298 error
= dmu_read(os
, bigobj
, bigoff
, bigsize
,
4299 bigbuf
, DMU_READ_PREFETCH
);
4302 compare_and_update_pbbufs(s
, packbuf
, bigbuf
, bigsize
,
4306 * We've verified all the old bufwads, and made new ones.
4307 * Now write them out.
4309 dmu_write(os
, packobj
, packoff
, packsize
, packbuf
, tx
);
4310 if (ztest_opts
.zo_verbose
>= 7) {
4311 (void) printf("writing offset %llx size %llx"
4313 (u_longlong_t
)bigoff
,
4314 (u_longlong_t
)bigsize
,
4317 for (off
= bigoff
, j
= 0; j
< s
; j
++, off
+= chunksize
) {
4319 if (i
!= 5 || chunksize
< (SPA_MINBLOCKSIZE
* 2)) {
4320 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
),
4321 bigbuf_arcbufs
[j
]->b_data
, chunksize
);
4323 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
),
4324 bigbuf_arcbufs
[2 * j
]->b_data
,
4326 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
) +
4328 bigbuf_arcbufs
[2 * j
+ 1]->b_data
,
4333 VERIFY(dmu_buf_hold(os
, bigobj
, off
,
4334 FTAG
, &dbt
, DMU_READ_NO_PREFETCH
) == 0);
4336 if (i
!= 5 || chunksize
< (SPA_MINBLOCKSIZE
* 2)) {
4337 dmu_assign_arcbuf(bonus_db
, off
,
4338 bigbuf_arcbufs
[j
], tx
);
4340 dmu_assign_arcbuf(bonus_db
, off
,
4341 bigbuf_arcbufs
[2 * j
], tx
);
4342 dmu_assign_arcbuf(bonus_db
,
4343 off
+ chunksize
/ 2,
4344 bigbuf_arcbufs
[2 * j
+ 1], tx
);
4347 dmu_buf_rele(dbt
, FTAG
);
4353 * Sanity check the stuff we just wrote.
4356 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
4357 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
4359 VERIFY(0 == dmu_read(os
, packobj
, packoff
,
4360 packsize
, packcheck
, DMU_READ_PREFETCH
));
4361 VERIFY(0 == dmu_read(os
, bigobj
, bigoff
,
4362 bigsize
, bigcheck
, DMU_READ_PREFETCH
));
4364 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
4365 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
4367 umem_free(packcheck
, packsize
);
4368 umem_free(bigcheck
, bigsize
);
4371 txg_wait_open(dmu_objset_pool(os
), 0);
4372 } else if (i
== 3) {
4373 txg_wait_synced(dmu_objset_pool(os
), 0);
4377 dmu_buf_rele(bonus_db
, FTAG
);
4378 umem_free(packbuf
, packsize
);
4379 umem_free(bigbuf
, bigsize
);
4380 umem_free(bigbuf_arcbufs
, 2 * s
* sizeof (arc_buf_t
*));
4381 umem_free(od
, size
);
4386 ztest_dmu_write_parallel(ztest_ds_t
*zd
, uint64_t id
)
4390 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4391 uint64_t offset
= (1ULL << (ztest_random(20) + 43)) +
4392 (ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
4395 * Have multiple threads write to large offsets in an object
4396 * to verify that parallel writes to an object -- even to the
4397 * same blocks within the object -- doesn't cause any trouble.
4399 ztest_od_init(od
, ID_PARALLEL
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0, 0);
4401 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0)
4404 while (ztest_random(10) != 0)
4405 ztest_io(zd
, od
->od_object
, offset
);
4407 umem_free(od
, sizeof (ztest_od_t
));
4411 ztest_dmu_prealloc(ztest_ds_t
*zd
, uint64_t id
)
4414 uint64_t offset
= (1ULL << (ztest_random(4) + SPA_MAXBLOCKSHIFT
)) +
4415 (ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
4416 uint64_t count
= ztest_random(20) + 1;
4417 uint64_t blocksize
= ztest_random_blocksize();
4420 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4422 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0, 0);
4424 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
),
4425 !ztest_random(2)) != 0) {
4426 umem_free(od
, sizeof (ztest_od_t
));
4430 if (ztest_truncate(zd
, od
->od_object
, offset
, count
* blocksize
) != 0) {
4431 umem_free(od
, sizeof (ztest_od_t
));
4435 ztest_prealloc(zd
, od
->od_object
, offset
, count
* blocksize
);
4437 data
= umem_zalloc(blocksize
, UMEM_NOFAIL
);
4439 while (ztest_random(count
) != 0) {
4440 uint64_t randoff
= offset
+ (ztest_random(count
) * blocksize
);
4441 if (ztest_write(zd
, od
->od_object
, randoff
, blocksize
,
4444 while (ztest_random(4) != 0)
4445 ztest_io(zd
, od
->od_object
, randoff
);
4448 umem_free(data
, blocksize
);
4449 umem_free(od
, sizeof (ztest_od_t
));
4453 * Verify that zap_{create,destroy,add,remove,update} work as expected.
4455 #define ZTEST_ZAP_MIN_INTS 1
4456 #define ZTEST_ZAP_MAX_INTS 4
4457 #define ZTEST_ZAP_MAX_PROPS 1000
4460 ztest_zap(ztest_ds_t
*zd
, uint64_t id
)
4462 objset_t
*os
= zd
->zd_os
;
4465 uint64_t txg
, last_txg
;
4466 uint64_t value
[ZTEST_ZAP_MAX_INTS
];
4467 uint64_t zl_ints
, zl_intsize
, prop
;
4470 char propname
[100], txgname
[100];
4472 char *hc
[2] = { "s.acl.h", ".s.open.h.hyLZlg" };
4474 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4475 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_ZAP_OTHER
, 0, 0, 0);
4477 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
),
4478 !ztest_random(2)) != 0)
4481 object
= od
->od_object
;
4484 * Generate a known hash collision, and verify that
4485 * we can lookup and remove both entries.
4487 tx
= dmu_tx_create(os
);
4488 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4489 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4492 for (i
= 0; i
< 2; i
++) {
4494 VERIFY3U(0, ==, zap_add(os
, object
, hc
[i
], sizeof (uint64_t),
4497 for (i
= 0; i
< 2; i
++) {
4498 VERIFY3U(EEXIST
, ==, zap_add(os
, object
, hc
[i
],
4499 sizeof (uint64_t), 1, &value
[i
], tx
));
4501 zap_length(os
, object
, hc
[i
], &zl_intsize
, &zl_ints
));
4502 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4503 ASSERT3U(zl_ints
, ==, 1);
4505 for (i
= 0; i
< 2; i
++) {
4506 VERIFY3U(0, ==, zap_remove(os
, object
, hc
[i
], tx
));
4511 * Generate a buch of random entries.
4513 ints
= MAX(ZTEST_ZAP_MIN_INTS
, object
% ZTEST_ZAP_MAX_INTS
);
4515 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
4516 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
4517 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
4518 bzero(value
, sizeof (value
));
4522 * If these zap entries already exist, validate their contents.
4524 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
4526 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4527 ASSERT3U(zl_ints
, ==, 1);
4529 VERIFY(zap_lookup(os
, object
, txgname
, zl_intsize
,
4530 zl_ints
, &last_txg
) == 0);
4532 VERIFY(zap_length(os
, object
, propname
, &zl_intsize
,
4535 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4536 ASSERT3U(zl_ints
, ==, ints
);
4538 VERIFY(zap_lookup(os
, object
, propname
, zl_intsize
,
4539 zl_ints
, value
) == 0);
4541 for (i
= 0; i
< ints
; i
++) {
4542 ASSERT3U(value
[i
], ==, last_txg
+ object
+ i
);
4545 ASSERT3U(error
, ==, ENOENT
);
4549 * Atomically update two entries in our zap object.
4550 * The first is named txg_%llu, and contains the txg
4551 * in which the property was last updated. The second
4552 * is named prop_%llu, and the nth element of its value
4553 * should be txg + object + n.
4555 tx
= dmu_tx_create(os
);
4556 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4557 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4562 fatal(0, "zap future leak: old %llu new %llu", last_txg
, txg
);
4564 for (i
= 0; i
< ints
; i
++)
4565 value
[i
] = txg
+ object
+ i
;
4567 VERIFY3U(0, ==, zap_update(os
, object
, txgname
, sizeof (uint64_t),
4569 VERIFY3U(0, ==, zap_update(os
, object
, propname
, sizeof (uint64_t),
4575 * Remove a random pair of entries.
4577 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
4578 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
4579 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
4581 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
4583 if (error
== ENOENT
)
4588 tx
= dmu_tx_create(os
);
4589 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4590 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4593 VERIFY3U(0, ==, zap_remove(os
, object
, txgname
, tx
));
4594 VERIFY3U(0, ==, zap_remove(os
, object
, propname
, tx
));
4597 umem_free(od
, sizeof (ztest_od_t
));
4601 * Testcase to test the upgrading of a microzap to fatzap.
4604 ztest_fzap(ztest_ds_t
*zd
, uint64_t id
)
4606 objset_t
*os
= zd
->zd_os
;
4608 uint64_t object
, txg
;
4611 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4612 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_ZAP_OTHER
, 0, 0, 0);
4614 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
),
4615 !ztest_random(2)) != 0)
4617 object
= od
->od_object
;
4620 * Add entries to this ZAP and make sure it spills over
4621 * and gets upgraded to a fatzap. Also, since we are adding
4622 * 2050 entries we should see ptrtbl growth and leaf-block split.
4624 for (i
= 0; i
< 2050; i
++) {
4625 char name
[MAXNAMELEN
];
4630 (void) snprintf(name
, sizeof (name
), "fzap-%llu-%llu",
4631 (u_longlong_t
)id
, (u_longlong_t
)value
);
4633 tx
= dmu_tx_create(os
);
4634 dmu_tx_hold_zap(tx
, object
, B_TRUE
, name
);
4635 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4638 error
= zap_add(os
, object
, name
, sizeof (uint64_t), 1,
4640 ASSERT(error
== 0 || error
== EEXIST
);
4644 umem_free(od
, sizeof (ztest_od_t
));
4649 ztest_zap_parallel(ztest_ds_t
*zd
, uint64_t id
)
4651 objset_t
*os
= zd
->zd_os
;
4653 uint64_t txg
, object
, count
, wsize
, wc
, zl_wsize
, zl_wc
;
4655 int i
, namelen
, error
;
4656 int micro
= ztest_random(2);
4657 char name
[20], string_value
[20];
4660 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4661 ztest_od_init(od
, ID_PARALLEL
, FTAG
, micro
, DMU_OT_ZAP_OTHER
, 0, 0, 0);
4663 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
4664 umem_free(od
, sizeof (ztest_od_t
));
4668 object
= od
->od_object
;
4671 * Generate a random name of the form 'xxx.....' where each
4672 * x is a random printable character and the dots are dots.
4673 * There are 94 such characters, and the name length goes from
4674 * 6 to 20, so there are 94^3 * 15 = 12,458,760 possible names.
4676 namelen
= ztest_random(sizeof (name
) - 5) + 5 + 1;
4678 for (i
= 0; i
< 3; i
++)
4679 name
[i
] = '!' + ztest_random('~' - '!' + 1);
4680 for (; i
< namelen
- 1; i
++)
4684 if ((namelen
& 1) || micro
) {
4685 wsize
= sizeof (txg
);
4691 data
= string_value
;
4695 VERIFY0(zap_count(os
, object
, &count
));
4696 ASSERT(count
!= -1ULL);
4699 * Select an operation: length, lookup, add, update, remove.
4701 i
= ztest_random(5);
4704 tx
= dmu_tx_create(os
);
4705 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4706 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4709 bcopy(name
, string_value
, namelen
);
4713 bzero(string_value
, namelen
);
4719 error
= zap_length(os
, object
, name
, &zl_wsize
, &zl_wc
);
4721 ASSERT3U(wsize
, ==, zl_wsize
);
4722 ASSERT3U(wc
, ==, zl_wc
);
4724 ASSERT3U(error
, ==, ENOENT
);
4729 error
= zap_lookup(os
, object
, name
, wsize
, wc
, data
);
4731 if (data
== string_value
&&
4732 bcmp(name
, data
, namelen
) != 0)
4733 fatal(0, "name '%s' != val '%s' len %d",
4734 name
, data
, namelen
);
4736 ASSERT3U(error
, ==, ENOENT
);
4741 error
= zap_add(os
, object
, name
, wsize
, wc
, data
, tx
);
4742 ASSERT(error
== 0 || error
== EEXIST
);
4746 VERIFY(zap_update(os
, object
, name
, wsize
, wc
, data
, tx
) == 0);
4750 error
= zap_remove(os
, object
, name
, tx
);
4751 ASSERT(error
== 0 || error
== ENOENT
);
4758 umem_free(od
, sizeof (ztest_od_t
));
4762 * Commit callback data.
4764 typedef struct ztest_cb_data
{
4765 list_node_t zcd_node
;
4767 int zcd_expected_err
;
4768 boolean_t zcd_added
;
4769 boolean_t zcd_called
;
4773 /* This is the actual commit callback function */
4775 ztest_commit_callback(void *arg
, int error
)
4777 ztest_cb_data_t
*data
= arg
;
4778 uint64_t synced_txg
;
4780 VERIFY(data
!= NULL
);
4781 VERIFY3S(data
->zcd_expected_err
, ==, error
);
4782 VERIFY(!data
->zcd_called
);
4784 synced_txg
= spa_last_synced_txg(data
->zcd_spa
);
4785 if (data
->zcd_txg
> synced_txg
)
4786 fatal(0, "commit callback of txg %" PRIu64
" called prematurely"
4787 ", last synced txg = %" PRIu64
"\n", data
->zcd_txg
,
4790 data
->zcd_called
= B_TRUE
;
4792 if (error
== ECANCELED
) {
4793 ASSERT0(data
->zcd_txg
);
4794 ASSERT(!data
->zcd_added
);
4797 * The private callback data should be destroyed here, but
4798 * since we are going to check the zcd_called field after
4799 * dmu_tx_abort(), we will destroy it there.
4804 ASSERT(data
->zcd_added
);
4805 ASSERT3U(data
->zcd_txg
, !=, 0);
4807 (void) mutex_enter(&zcl
.zcl_callbacks_lock
);
4809 /* See if this cb was called more quickly */
4810 if ((synced_txg
- data
->zcd_txg
) < zc_min_txg_delay
)
4811 zc_min_txg_delay
= synced_txg
- data
->zcd_txg
;
4813 /* Remove our callback from the list */
4814 list_remove(&zcl
.zcl_callbacks
, data
);
4816 (void) mutex_exit(&zcl
.zcl_callbacks_lock
);
4818 umem_free(data
, sizeof (ztest_cb_data_t
));
4821 /* Allocate and initialize callback data structure */
4822 static ztest_cb_data_t
*
4823 ztest_create_cb_data(objset_t
*os
, uint64_t txg
)
4825 ztest_cb_data_t
*cb_data
;
4827 cb_data
= umem_zalloc(sizeof (ztest_cb_data_t
), UMEM_NOFAIL
);
4829 cb_data
->zcd_txg
= txg
;
4830 cb_data
->zcd_spa
= dmu_objset_spa(os
);
4831 list_link_init(&cb_data
->zcd_node
);
4837 * Commit callback test.
4840 ztest_dmu_commit_callbacks(ztest_ds_t
*zd
, uint64_t id
)
4842 objset_t
*os
= zd
->zd_os
;
4845 ztest_cb_data_t
*cb_data
[3], *tmp_cb
;
4846 uint64_t old_txg
, txg
;
4849 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4850 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0, 0);
4852 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
4853 umem_free(od
, sizeof (ztest_od_t
));
4857 tx
= dmu_tx_create(os
);
4859 cb_data
[0] = ztest_create_cb_data(os
, 0);
4860 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[0]);
4862 dmu_tx_hold_write(tx
, od
->od_object
, 0, sizeof (uint64_t));
4864 /* Every once in a while, abort the transaction on purpose */
4865 if (ztest_random(100) == 0)
4869 error
= dmu_tx_assign(tx
, TXG_NOWAIT
);
4871 txg
= error
? 0 : dmu_tx_get_txg(tx
);
4873 cb_data
[0]->zcd_txg
= txg
;
4874 cb_data
[1] = ztest_create_cb_data(os
, txg
);
4875 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[1]);
4879 * It's not a strict requirement to call the registered
4880 * callbacks from inside dmu_tx_abort(), but that's what
4881 * it's supposed to happen in the current implementation
4882 * so we will check for that.
4884 for (i
= 0; i
< 2; i
++) {
4885 cb_data
[i
]->zcd_expected_err
= ECANCELED
;
4886 VERIFY(!cb_data
[i
]->zcd_called
);
4891 for (i
= 0; i
< 2; i
++) {
4892 VERIFY(cb_data
[i
]->zcd_called
);
4893 umem_free(cb_data
[i
], sizeof (ztest_cb_data_t
));
4896 umem_free(od
, sizeof (ztest_od_t
));
4900 cb_data
[2] = ztest_create_cb_data(os
, txg
);
4901 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[2]);
4904 * Read existing data to make sure there isn't a future leak.
4906 VERIFY(0 == dmu_read(os
, od
->od_object
, 0, sizeof (uint64_t),
4907 &old_txg
, DMU_READ_PREFETCH
));
4910 fatal(0, "future leak: got %" PRIu64
", open txg is %" PRIu64
,
4913 dmu_write(os
, od
->od_object
, 0, sizeof (uint64_t), &txg
, tx
);
4915 (void) mutex_enter(&zcl
.zcl_callbacks_lock
);
4918 * Since commit callbacks don't have any ordering requirement and since
4919 * it is theoretically possible for a commit callback to be called
4920 * after an arbitrary amount of time has elapsed since its txg has been
4921 * synced, it is difficult to reliably determine whether a commit
4922 * callback hasn't been called due to high load or due to a flawed
4925 * In practice, we will assume that if after a certain number of txgs a
4926 * commit callback hasn't been called, then most likely there's an
4927 * implementation bug..
4929 tmp_cb
= list_head(&zcl
.zcl_callbacks
);
4930 if (tmp_cb
!= NULL
&&
4931 tmp_cb
->zcd_txg
+ ZTEST_COMMIT_CB_THRESH
< txg
) {
4932 fatal(0, "Commit callback threshold exceeded, oldest txg: %"
4933 PRIu64
", open txg: %" PRIu64
"\n", tmp_cb
->zcd_txg
, txg
);
4937 * Let's find the place to insert our callbacks.
4939 * Even though the list is ordered by txg, it is possible for the
4940 * insertion point to not be the end because our txg may already be
4941 * quiescing at this point and other callbacks in the open txg
4942 * (from other objsets) may have sneaked in.
4944 tmp_cb
= list_tail(&zcl
.zcl_callbacks
);
4945 while (tmp_cb
!= NULL
&& tmp_cb
->zcd_txg
> txg
)
4946 tmp_cb
= list_prev(&zcl
.zcl_callbacks
, tmp_cb
);
4948 /* Add the 3 callbacks to the list */
4949 for (i
= 0; i
< 3; i
++) {
4951 list_insert_head(&zcl
.zcl_callbacks
, cb_data
[i
]);
4953 list_insert_after(&zcl
.zcl_callbacks
, tmp_cb
,
4956 cb_data
[i
]->zcd_added
= B_TRUE
;
4957 VERIFY(!cb_data
[i
]->zcd_called
);
4959 tmp_cb
= cb_data
[i
];
4964 (void) mutex_exit(&zcl
.zcl_callbacks_lock
);
4968 umem_free(od
, sizeof (ztest_od_t
));
4972 * Visit each object in the dataset. Verify that its properties
4973 * are consistent what was stored in the block tag when it was created,
4974 * and that its unused bonus buffer space has not been overwritten.
4977 ztest_verify_dnode_bt(ztest_ds_t
*zd
, uint64_t id
)
4979 objset_t
*os
= zd
->zd_os
;
4983 for (obj
= 0; err
== 0; err
= dmu_object_next(os
, &obj
, FALSE
, 0)) {
4984 ztest_block_tag_t
*bt
= NULL
;
4985 dmu_object_info_t doi
;
4988 if (dmu_bonus_hold(os
, obj
, FTAG
, &db
) != 0)
4991 dmu_object_info_from_db(db
, &doi
);
4992 if (doi
.doi_bonus_size
>= sizeof (*bt
))
4993 bt
= ztest_bt_bonus(db
);
4995 if (bt
&& bt
->bt_magic
== BT_MAGIC
) {
4996 ztest_bt_verify(bt
, os
, obj
, doi
.doi_dnodesize
,
4997 bt
->bt_offset
, bt
->bt_gen
, bt
->bt_txg
,
4999 ztest_verify_unused_bonus(db
, bt
, obj
, os
, bt
->bt_gen
);
5002 dmu_buf_rele(db
, FTAG
);
5008 ztest_dsl_prop_get_set(ztest_ds_t
*zd
, uint64_t id
)
5010 zfs_prop_t proplist
[] = {
5012 ZFS_PROP_COMPRESSION
,
5018 (void) rw_rdlock(&ztest_name_lock
);
5020 for (p
= 0; p
< sizeof (proplist
) / sizeof (proplist
[0]); p
++)
5021 (void) ztest_dsl_prop_set_uint64(zd
->zd_name
, proplist
[p
],
5022 ztest_random_dsl_prop(proplist
[p
]), (int)ztest_random(2));
5024 VERIFY0(ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_RECORDSIZE
,
5025 ztest_random_blocksize(), (int)ztest_random(2)));
5027 (void) rw_unlock(&ztest_name_lock
);
5032 ztest_spa_prop_get_set(ztest_ds_t
*zd
, uint64_t id
)
5034 nvlist_t
*props
= NULL
;
5036 (void) rw_rdlock(&ztest_name_lock
);
5038 (void) ztest_spa_prop_set_uint64(ZPOOL_PROP_DEDUPDITTO
,
5039 ZIO_DEDUPDITTO_MIN
+ ztest_random(ZIO_DEDUPDITTO_MIN
));
5041 VERIFY0(spa_prop_get(ztest_spa
, &props
));
5043 if (ztest_opts
.zo_verbose
>= 6)
5044 dump_nvlist(props
, 4);
5048 (void) rw_unlock(&ztest_name_lock
);
5052 user_release_one(const char *snapname
, const char *holdname
)
5054 nvlist_t
*snaps
, *holds
;
5057 snaps
= fnvlist_alloc();
5058 holds
= fnvlist_alloc();
5059 fnvlist_add_boolean(holds
, holdname
);
5060 fnvlist_add_nvlist(snaps
, snapname
, holds
);
5061 fnvlist_free(holds
);
5062 error
= dsl_dataset_user_release(snaps
, NULL
);
5063 fnvlist_free(snaps
);
5068 * Test snapshot hold/release and deferred destroy.
5071 ztest_dmu_snapshot_hold(ztest_ds_t
*zd
, uint64_t id
)
5074 objset_t
*os
= zd
->zd_os
;
5078 char clonename
[100];
5080 char osname
[MAXNAMELEN
];
5083 (void) rw_rdlock(&ztest_name_lock
);
5085 dmu_objset_name(os
, osname
);
5087 (void) snprintf(snapname
, sizeof (snapname
), "sh1_%llu",
5089 (void) snprintf(fullname
, sizeof (fullname
), "%s@%s", osname
, snapname
);
5090 (void) snprintf(clonename
, sizeof (clonename
),
5091 "%s/ch1_%llu", osname
, (u_longlong_t
)id
);
5092 (void) snprintf(tag
, sizeof (tag
), "tag_%llu", (u_longlong_t
)id
);
5095 * Clean up from any previous run.
5097 error
= dsl_destroy_head(clonename
);
5098 if (error
!= ENOENT
)
5100 error
= user_release_one(fullname
, tag
);
5101 if (error
!= ESRCH
&& error
!= ENOENT
)
5103 error
= dsl_destroy_snapshot(fullname
, B_FALSE
);
5104 if (error
!= ENOENT
)
5108 * Create snapshot, clone it, mark snap for deferred destroy,
5109 * destroy clone, verify snap was also destroyed.
5111 error
= dmu_objset_snapshot_one(osname
, snapname
);
5113 if (error
== ENOSPC
) {
5114 ztest_record_enospc("dmu_objset_snapshot");
5117 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname
, error
);
5120 error
= dmu_objset_clone(clonename
, fullname
);
5122 if (error
== ENOSPC
) {
5123 ztest_record_enospc("dmu_objset_clone");
5126 fatal(0, "dmu_objset_clone(%s) = %d", clonename
, error
);
5129 error
= dsl_destroy_snapshot(fullname
, B_TRUE
);
5131 fatal(0, "dsl_destroy_snapshot(%s, B_TRUE) = %d",
5135 error
= dsl_destroy_head(clonename
);
5137 fatal(0, "dsl_destroy_head(%s) = %d", clonename
, error
);
5139 error
= dmu_objset_hold(fullname
, FTAG
, &origin
);
5140 if (error
!= ENOENT
)
5141 fatal(0, "dmu_objset_hold(%s) = %d", fullname
, error
);
5144 * Create snapshot, add temporary hold, verify that we can't
5145 * destroy a held snapshot, mark for deferred destroy,
5146 * release hold, verify snapshot was destroyed.
5148 error
= dmu_objset_snapshot_one(osname
, snapname
);
5150 if (error
== ENOSPC
) {
5151 ztest_record_enospc("dmu_objset_snapshot");
5154 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname
, error
);
5157 holds
= fnvlist_alloc();
5158 fnvlist_add_string(holds
, fullname
, tag
);
5159 error
= dsl_dataset_user_hold(holds
, 0, NULL
);
5160 fnvlist_free(holds
);
5162 if (error
== ENOSPC
) {
5163 ztest_record_enospc("dsl_dataset_user_hold");
5166 fatal(0, "dsl_dataset_user_hold(%s, %s) = %u",
5167 fullname
, tag
, error
);
5170 error
= dsl_destroy_snapshot(fullname
, B_FALSE
);
5171 if (error
!= EBUSY
) {
5172 fatal(0, "dsl_destroy_snapshot(%s, B_FALSE) = %d",
5176 error
= dsl_destroy_snapshot(fullname
, B_TRUE
);
5178 fatal(0, "dsl_destroy_snapshot(%s, B_TRUE) = %d",
5182 error
= user_release_one(fullname
, tag
);
5184 fatal(0, "user_release_one(%s, %s) = %d", fullname
, tag
, error
);
5186 VERIFY3U(dmu_objset_hold(fullname
, FTAG
, &origin
), ==, ENOENT
);
5189 (void) rw_unlock(&ztest_name_lock
);
5193 * Inject random faults into the on-disk data.
5197 ztest_fault_inject(ztest_ds_t
*zd
, uint64_t id
)
5199 ztest_shared_t
*zs
= ztest_shared
;
5200 spa_t
*spa
= ztest_spa
;
5204 uint64_t bad
= 0x1990c0ffeedecadeull
;
5209 int bshift
= SPA_MAXBLOCKSHIFT
+ 2; /* don't scrog all labels */
5215 boolean_t islog
= B_FALSE
;
5217 path0
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
5218 pathrand
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
5220 mutex_enter(&ztest_vdev_lock
);
5221 maxfaults
= MAXFAULTS();
5222 leaves
= MAX(zs
->zs_mirrors
, 1) * ztest_opts
.zo_raidz
;
5223 mirror_save
= zs
->zs_mirrors
;
5224 mutex_exit(&ztest_vdev_lock
);
5226 ASSERT(leaves
>= 1);
5229 * Grab the name lock as reader. There are some operations
5230 * which don't like to have their vdevs changed while
5231 * they are in progress (i.e. spa_change_guid). Those
5232 * operations will have grabbed the name lock as writer.
5234 (void) rw_rdlock(&ztest_name_lock
);
5237 * We need SCL_STATE here because we're going to look at vd0->vdev_tsd.
5239 spa_config_enter(spa
, SCL_STATE
, FTAG
, RW_READER
);
5241 if (ztest_random(2) == 0) {
5243 * Inject errors on a normal data device or slog device.
5245 top
= ztest_random_vdev_top(spa
, B_TRUE
);
5246 leaf
= ztest_random(leaves
) + zs
->zs_splits
;
5249 * Generate paths to the first leaf in this top-level vdev,
5250 * and to the random leaf we selected. We'll induce transient
5251 * write failures and random online/offline activity on leaf 0,
5252 * and we'll write random garbage to the randomly chosen leaf.
5254 (void) snprintf(path0
, MAXPATHLEN
, ztest_dev_template
,
5255 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
5256 top
* leaves
+ zs
->zs_splits
);
5257 (void) snprintf(pathrand
, MAXPATHLEN
, ztest_dev_template
,
5258 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
5259 top
* leaves
+ leaf
);
5261 vd0
= vdev_lookup_by_path(spa
->spa_root_vdev
, path0
);
5262 if (vd0
!= NULL
&& vd0
->vdev_top
->vdev_islog
)
5266 * If the top-level vdev needs to be resilvered
5267 * then we only allow faults on the device that is
5270 if (vd0
!= NULL
&& maxfaults
!= 1 &&
5271 (!vdev_resilver_needed(vd0
->vdev_top
, NULL
, NULL
) ||
5272 vd0
->vdev_resilver_txg
!= 0)) {
5274 * Make vd0 explicitly claim to be unreadable,
5275 * or unwriteable, or reach behind its back
5276 * and close the underlying fd. We can do this if
5277 * maxfaults == 0 because we'll fail and reexecute,
5278 * and we can do it if maxfaults >= 2 because we'll
5279 * have enough redundancy. If maxfaults == 1, the
5280 * combination of this with injection of random data
5281 * corruption below exceeds the pool's fault tolerance.
5283 vdev_file_t
*vf
= vd0
->vdev_tsd
;
5285 if (vf
!= NULL
&& ztest_random(3) == 0) {
5286 (void) close(vf
->vf_vnode
->v_fd
);
5287 vf
->vf_vnode
->v_fd
= -1;
5288 } else if (ztest_random(2) == 0) {
5289 vd0
->vdev_cant_read
= B_TRUE
;
5291 vd0
->vdev_cant_write
= B_TRUE
;
5293 guid0
= vd0
->vdev_guid
;
5297 * Inject errors on an l2cache device.
5299 spa_aux_vdev_t
*sav
= &spa
->spa_l2cache
;
5301 if (sav
->sav_count
== 0) {
5302 spa_config_exit(spa
, SCL_STATE
, FTAG
);
5303 (void) rw_unlock(&ztest_name_lock
);
5306 vd0
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)];
5307 guid0
= vd0
->vdev_guid
;
5308 (void) strcpy(path0
, vd0
->vdev_path
);
5309 (void) strcpy(pathrand
, vd0
->vdev_path
);
5313 maxfaults
= INT_MAX
; /* no limit on cache devices */
5316 spa_config_exit(spa
, SCL_STATE
, FTAG
);
5317 (void) rw_unlock(&ztest_name_lock
);
5320 * If we can tolerate two or more faults, or we're dealing
5321 * with a slog, randomly online/offline vd0.
5323 if ((maxfaults
>= 2 || islog
) && guid0
!= 0) {
5324 if (ztest_random(10) < 6) {
5325 int flags
= (ztest_random(2) == 0 ?
5326 ZFS_OFFLINE_TEMPORARY
: 0);
5329 * We have to grab the zs_name_lock as writer to
5330 * prevent a race between offlining a slog and
5331 * destroying a dataset. Offlining the slog will
5332 * grab a reference on the dataset which may cause
5333 * dsl_destroy_head() to fail with EBUSY thus
5334 * leaving the dataset in an inconsistent state.
5337 (void) rw_wrlock(&ztest_name_lock
);
5339 VERIFY(vdev_offline(spa
, guid0
, flags
) != EBUSY
);
5342 (void) rw_unlock(&ztest_name_lock
);
5345 * Ideally we would like to be able to randomly
5346 * call vdev_[on|off]line without holding locks
5347 * to force unpredictable failures but the side
5348 * effects of vdev_[on|off]line prevent us from
5349 * doing so. We grab the ztest_vdev_lock here to
5350 * prevent a race between injection testing and
5353 mutex_enter(&ztest_vdev_lock
);
5354 (void) vdev_online(spa
, guid0
, 0, NULL
);
5355 mutex_exit(&ztest_vdev_lock
);
5363 * We have at least single-fault tolerance, so inject data corruption.
5365 fd
= open(pathrand
, O_RDWR
);
5367 if (fd
== -1) /* we hit a gap in the device namespace */
5370 fsize
= lseek(fd
, 0, SEEK_END
);
5372 while (--iters
!= 0) {
5374 * The offset must be chosen carefully to ensure that
5375 * we do not inject a given logical block with errors
5376 * on two different leaf devices, because ZFS can not
5377 * tolerate that (if maxfaults==1).
5379 * We divide each leaf into chunks of size
5380 * (# leaves * SPA_MAXBLOCKSIZE * 4). Within each chunk
5381 * there is a series of ranges to which we can inject errors.
5382 * Each range can accept errors on only a single leaf vdev.
5383 * The error injection ranges are separated by ranges
5384 * which we will not inject errors on any device (DMZs).
5385 * Each DMZ must be large enough such that a single block
5386 * can not straddle it, so that a single block can not be
5387 * a target in two different injection ranges (on different
5390 * For example, with 3 leaves, each chunk looks like:
5391 * 0 to 32M: injection range for leaf 0
5392 * 32M to 64M: DMZ - no injection allowed
5393 * 64M to 96M: injection range for leaf 1
5394 * 96M to 128M: DMZ - no injection allowed
5395 * 128M to 160M: injection range for leaf 2
5396 * 160M to 192M: DMZ - no injection allowed
5398 offset
= ztest_random(fsize
/ (leaves
<< bshift
)) *
5399 (leaves
<< bshift
) + (leaf
<< bshift
) +
5400 (ztest_random(1ULL << (bshift
- 1)) & -8ULL);
5402 if (offset
>= fsize
)
5405 mutex_enter(&ztest_vdev_lock
);
5406 if (mirror_save
!= zs
->zs_mirrors
) {
5407 mutex_exit(&ztest_vdev_lock
);
5412 if (pwrite(fd
, &bad
, sizeof (bad
), offset
) != sizeof (bad
))
5413 fatal(1, "can't inject bad word at 0x%llx in %s",
5416 mutex_exit(&ztest_vdev_lock
);
5418 if (ztest_opts
.zo_verbose
>= 7)
5419 (void) printf("injected bad word into %s,"
5420 " offset 0x%llx\n", pathrand
, (u_longlong_t
)offset
);
5425 umem_free(path0
, MAXPATHLEN
);
5426 umem_free(pathrand
, MAXPATHLEN
);
5430 * Verify that DDT repair works as expected.
5433 ztest_ddt_repair(ztest_ds_t
*zd
, uint64_t id
)
5435 ztest_shared_t
*zs
= ztest_shared
;
5436 spa_t
*spa
= ztest_spa
;
5437 objset_t
*os
= zd
->zd_os
;
5439 uint64_t object
, blocksize
, txg
, pattern
, psize
;
5440 enum zio_checksum checksum
= spa_dedup_checksum(spa
);
5445 int copies
= 2 * ZIO_DEDUPDITTO_MIN
;
5448 blocksize
= ztest_random_blocksize();
5449 blocksize
= MIN(blocksize
, 2048); /* because we write so many */
5451 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
5452 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0, 0);
5454 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
5455 umem_free(od
, sizeof (ztest_od_t
));
5460 * Take the name lock as writer to prevent anyone else from changing
5461 * the pool and dataset properies we need to maintain during this test.
5463 (void) rw_wrlock(&ztest_name_lock
);
5465 if (ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_DEDUP
, checksum
,
5467 ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_COPIES
, 1,
5469 (void) rw_unlock(&ztest_name_lock
);
5470 umem_free(od
, sizeof (ztest_od_t
));
5474 object
= od
[0].od_object
;
5475 blocksize
= od
[0].od_blocksize
;
5476 pattern
= zs
->zs_guid
^ dmu_objset_fsid_guid(os
);
5478 ASSERT(object
!= 0);
5480 tx
= dmu_tx_create(os
);
5481 dmu_tx_hold_write(tx
, object
, 0, copies
* blocksize
);
5482 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
5484 (void) rw_unlock(&ztest_name_lock
);
5485 umem_free(od
, sizeof (ztest_od_t
));
5490 * Write all the copies of our block.
5492 for (i
= 0; i
< copies
; i
++) {
5493 uint64_t offset
= i
* blocksize
;
5494 int error
= dmu_buf_hold(os
, object
, offset
, FTAG
, &db
,
5495 DMU_READ_NO_PREFETCH
);
5497 fatal(B_FALSE
, "dmu_buf_hold(%p, %llu, %llu) = %u",
5498 os
, (long long)object
, (long long) offset
, error
);
5500 ASSERT(db
->db_offset
== offset
);
5501 ASSERT(db
->db_size
== blocksize
);
5502 ASSERT(ztest_pattern_match(db
->db_data
, db
->db_size
, pattern
) ||
5503 ztest_pattern_match(db
->db_data
, db
->db_size
, 0ULL));
5504 dmu_buf_will_fill(db
, tx
);
5505 ztest_pattern_set(db
->db_data
, db
->db_size
, pattern
);
5506 dmu_buf_rele(db
, FTAG
);
5510 txg_wait_synced(spa_get_dsl(spa
), txg
);
5513 * Find out what block we got.
5515 VERIFY0(dmu_buf_hold(os
, object
, 0, FTAG
, &db
,
5516 DMU_READ_NO_PREFETCH
));
5517 blk
= *((dmu_buf_impl_t
*)db
)->db_blkptr
;
5518 dmu_buf_rele(db
, FTAG
);
5521 * Damage the block. Dedup-ditto will save us when we read it later.
5523 psize
= BP_GET_PSIZE(&blk
);
5524 buf
= zio_buf_alloc(psize
);
5525 ztest_pattern_set(buf
, psize
, ~pattern
);
5527 (void) zio_wait(zio_rewrite(NULL
, spa
, 0, &blk
,
5528 buf
, psize
, NULL
, NULL
, ZIO_PRIORITY_SYNC_WRITE
,
5529 ZIO_FLAG_CANFAIL
| ZIO_FLAG_INDUCE_DAMAGE
, NULL
));
5531 zio_buf_free(buf
, psize
);
5533 (void) rw_unlock(&ztest_name_lock
);
5534 umem_free(od
, sizeof (ztest_od_t
));
5542 ztest_scrub(ztest_ds_t
*zd
, uint64_t id
)
5544 spa_t
*spa
= ztest_spa
;
5546 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5547 (void) poll(NULL
, 0, 100); /* wait a moment, then force a restart */
5548 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5552 * Change the guid for the pool.
5556 ztest_reguid(ztest_ds_t
*zd
, uint64_t id
)
5558 spa_t
*spa
= ztest_spa
;
5559 uint64_t orig
, load
;
5562 orig
= spa_guid(spa
);
5563 load
= spa_load_guid(spa
);
5565 (void) rw_wrlock(&ztest_name_lock
);
5566 error
= spa_change_guid(spa
);
5567 (void) rw_unlock(&ztest_name_lock
);
5572 if (ztest_opts
.zo_verbose
>= 4) {
5573 (void) printf("Changed guid old %llu -> %llu\n",
5574 (u_longlong_t
)orig
, (u_longlong_t
)spa_guid(spa
));
5577 VERIFY3U(orig
, !=, spa_guid(spa
));
5578 VERIFY3U(load
, ==, spa_load_guid(spa
));
5582 * Rename the pool to a different name and then rename it back.
5586 ztest_spa_rename(ztest_ds_t
*zd
, uint64_t id
)
5588 char *oldname
, *newname
;
5591 (void) rw_wrlock(&ztest_name_lock
);
5593 oldname
= ztest_opts
.zo_pool
;
5594 newname
= umem_alloc(strlen(oldname
) + 5, UMEM_NOFAIL
);
5595 (void) strcpy(newname
, oldname
);
5596 (void) strcat(newname
, "_tmp");
5601 VERIFY3U(0, ==, spa_rename(oldname
, newname
));
5604 * Try to open it under the old name, which shouldn't exist
5606 VERIFY3U(ENOENT
, ==, spa_open(oldname
, &spa
, FTAG
));
5609 * Open it under the new name and make sure it's still the same spa_t.
5611 VERIFY3U(0, ==, spa_open(newname
, &spa
, FTAG
));
5613 ASSERT(spa
== ztest_spa
);
5614 spa_close(spa
, FTAG
);
5617 * Rename it back to the original
5619 VERIFY3U(0, ==, spa_rename(newname
, oldname
));
5622 * Make sure it can still be opened
5624 VERIFY3U(0, ==, spa_open(oldname
, &spa
, FTAG
));
5626 ASSERT(spa
== ztest_spa
);
5627 spa_close(spa
, FTAG
);
5629 umem_free(newname
, strlen(newname
) + 1);
5631 (void) rw_unlock(&ztest_name_lock
);
5635 ztest_fletcher(ztest_ds_t
*zd
, uint64_t id
)
5637 hrtime_t end
= gethrtime() + NANOSEC
;
5639 while (gethrtime() <= end
) {
5640 int run_count
= 100;
5646 zio_cksum_t zc_ref_byteswap
;
5648 size
= ztest_random_blocksize();
5649 buf
= umem_alloc(size
, UMEM_NOFAIL
);
5651 for (i
= 0, ptr
= buf
; i
< size
/ sizeof (*ptr
); i
++, ptr
++)
5652 *ptr
= ztest_random(UINT_MAX
);
5654 VERIFY0(fletcher_4_impl_set("scalar"));
5655 fletcher_4_native(buf
, size
, &zc_ref
);
5656 fletcher_4_byteswap(buf
, size
, &zc_ref_byteswap
);
5658 VERIFY0(fletcher_4_impl_set("cycle"));
5659 while (run_count
-- > 0) {
5661 zio_cksum_t zc_byteswap
;
5663 fletcher_4_byteswap(buf
, size
, &zc_byteswap
);
5664 fletcher_4_native(buf
, size
, &zc
);
5666 VERIFY0(bcmp(&zc
, &zc_ref
, sizeof (zc
)));
5667 VERIFY0(bcmp(&zc_byteswap
, &zc_ref_byteswap
,
5668 sizeof (zc_byteswap
)));
5671 umem_free(buf
, size
);
5676 ztest_check_path(char *path
)
5679 /* return true on success */
5680 return (!stat(path
, &s
));
5684 ztest_get_zdb_bin(char *bin
, int len
)
5688 * Try to use ZDB_PATH and in-tree zdb path. If not successful, just
5689 * let popen to search through PATH.
5691 if ((zdb_path
= getenv("ZDB_PATH"))) {
5692 strlcpy(bin
, zdb_path
, len
); /* In env */
5693 if (!ztest_check_path(bin
)) {
5694 ztest_dump_core
= 0;
5695 fatal(1, "invalid ZDB_PATH '%s'", bin
);
5700 VERIFY(realpath(getexecname(), bin
) != NULL
);
5701 if (strstr(bin
, "/ztest/")) {
5702 strstr(bin
, "/ztest/")[0] = '\0'; /* In-tree */
5703 strcat(bin
, "/zdb/zdb");
5704 if (ztest_check_path(bin
))
5711 * Verify pool integrity by running zdb.
5714 ztest_run_zdb(char *pool
)
5720 const int len
= MAXPATHLEN
+ MAXNAMELEN
+ 20;
5723 bin
= umem_alloc(len
, UMEM_NOFAIL
);
5724 zdb
= umem_alloc(len
, UMEM_NOFAIL
);
5725 zbuf
= umem_alloc(1024, UMEM_NOFAIL
);
5727 ztest_get_zdb_bin(bin
, len
);
5730 "%s -bcc%s%s -d -U %s %s",
5732 ztest_opts
.zo_verbose
>= 3 ? "s" : "",
5733 ztest_opts
.zo_verbose
>= 4 ? "v" : "",
5737 if (ztest_opts
.zo_verbose
>= 5)
5738 (void) printf("Executing %s\n", strstr(zdb
, "zdb "));
5740 fp
= popen(zdb
, "r");
5742 while (fgets(zbuf
, 1024, fp
) != NULL
)
5743 if (ztest_opts
.zo_verbose
>= 3)
5744 (void) printf("%s", zbuf
);
5746 status
= pclose(fp
);
5751 ztest_dump_core
= 0;
5752 if (WIFEXITED(status
))
5753 fatal(0, "'%s' exit code %d", zdb
, WEXITSTATUS(status
));
5755 fatal(0, "'%s' died with signal %d", zdb
, WTERMSIG(status
));
5757 umem_free(bin
, len
);
5758 umem_free(zdb
, len
);
5759 umem_free(zbuf
, 1024);
5763 ztest_walk_pool_directory(char *header
)
5767 if (ztest_opts
.zo_verbose
>= 6)
5768 (void) printf("%s\n", header
);
5770 mutex_enter(&spa_namespace_lock
);
5771 while ((spa
= spa_next(spa
)) != NULL
)
5772 if (ztest_opts
.zo_verbose
>= 6)
5773 (void) printf("\t%s\n", spa_name(spa
));
5774 mutex_exit(&spa_namespace_lock
);
5778 ztest_spa_import_export(char *oldname
, char *newname
)
5780 nvlist_t
*config
, *newconfig
;
5785 if (ztest_opts
.zo_verbose
>= 4) {
5786 (void) printf("import/export: old = %s, new = %s\n",
5791 * Clean up from previous runs.
5793 (void) spa_destroy(newname
);
5796 * Get the pool's configuration and guid.
5798 VERIFY3U(0, ==, spa_open(oldname
, &spa
, FTAG
));
5801 * Kick off a scrub to tickle scrub/export races.
5803 if (ztest_random(2) == 0)
5804 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5806 pool_guid
= spa_guid(spa
);
5807 spa_close(spa
, FTAG
);
5809 ztest_walk_pool_directory("pools before export");
5814 VERIFY3U(0, ==, spa_export(oldname
, &config
, B_FALSE
, B_FALSE
));
5816 ztest_walk_pool_directory("pools after export");
5821 newconfig
= spa_tryimport(config
);
5822 ASSERT(newconfig
!= NULL
);
5823 nvlist_free(newconfig
);
5826 * Import it under the new name.
5828 error
= spa_import(newname
, config
, NULL
, 0);
5830 dump_nvlist(config
, 0);
5831 fatal(B_FALSE
, "couldn't import pool %s as %s: error %u",
5832 oldname
, newname
, error
);
5835 ztest_walk_pool_directory("pools after import");
5838 * Try to import it again -- should fail with EEXIST.
5840 VERIFY3U(EEXIST
, ==, spa_import(newname
, config
, NULL
, 0));
5843 * Try to import it under a different name -- should fail with EEXIST.
5845 VERIFY3U(EEXIST
, ==, spa_import(oldname
, config
, NULL
, 0));
5848 * Verify that the pool is no longer visible under the old name.
5850 VERIFY3U(ENOENT
, ==, spa_open(oldname
, &spa
, FTAG
));
5853 * Verify that we can open and close the pool using the new name.
5855 VERIFY3U(0, ==, spa_open(newname
, &spa
, FTAG
));
5856 ASSERT(pool_guid
== spa_guid(spa
));
5857 spa_close(spa
, FTAG
);
5859 nvlist_free(config
);
5863 ztest_resume(spa_t
*spa
)
5865 if (spa_suspended(spa
) && ztest_opts
.zo_verbose
>= 6)
5866 (void) printf("resuming from suspended state\n");
5867 spa_vdev_state_enter(spa
, SCL_NONE
);
5868 vdev_clear(spa
, NULL
);
5869 (void) spa_vdev_state_exit(spa
, NULL
, 0);
5870 (void) zio_resume(spa
);
5874 ztest_resume_thread(void *arg
)
5878 while (!ztest_exiting
) {
5879 if (spa_suspended(spa
))
5881 (void) poll(NULL
, 0, 100);
5893 ztest_deadman_alarm(int sig
)
5895 fatal(0, "failed to complete within %d seconds of deadline", GRACE
);
5900 ztest_execute(int test
, ztest_info_t
*zi
, uint64_t id
)
5902 ztest_ds_t
*zd
= &ztest_ds
[id
% ztest_opts
.zo_datasets
];
5903 ztest_shared_callstate_t
*zc
= ZTEST_GET_SHARED_CALLSTATE(test
);
5904 hrtime_t functime
= gethrtime();
5907 for (i
= 0; i
< zi
->zi_iters
; i
++)
5908 zi
->zi_func(zd
, id
);
5910 functime
= gethrtime() - functime
;
5912 atomic_add_64(&zc
->zc_count
, 1);
5913 atomic_add_64(&zc
->zc_time
, functime
);
5915 if (ztest_opts
.zo_verbose
>= 4)
5916 (void) printf("%6.2f sec in %s\n",
5917 (double)functime
/ NANOSEC
, zi
->zi_funcname
);
5921 ztest_thread(void *arg
)
5924 uint64_t id
= (uintptr_t)arg
;
5925 ztest_shared_t
*zs
= ztest_shared
;
5929 ztest_shared_callstate_t
*zc
;
5931 while ((now
= gethrtime()) < zs
->zs_thread_stop
) {
5933 * See if it's time to force a crash.
5935 if (now
> zs
->zs_thread_kill
)
5939 * If we're getting ENOSPC with some regularity, stop.
5941 if (zs
->zs_enospc_count
> 10)
5945 * Pick a random function to execute.
5947 rand
= ztest_random(ZTEST_FUNCS
);
5948 zi
= &ztest_info
[rand
];
5949 zc
= ZTEST_GET_SHARED_CALLSTATE(rand
);
5950 call_next
= zc
->zc_next
;
5952 if (now
>= call_next
&&
5953 atomic_cas_64(&zc
->zc_next
, call_next
, call_next
+
5954 ztest_random(2 * zi
->zi_interval
[0] + 1)) == call_next
) {
5955 ztest_execute(rand
, zi
, id
);
5965 ztest_dataset_name(char *dsname
, char *pool
, int d
)
5967 (void) snprintf(dsname
, MAXNAMELEN
, "%s/ds_%d", pool
, d
);
5971 ztest_dataset_destroy(int d
)
5973 char name
[MAXNAMELEN
];
5976 ztest_dataset_name(name
, ztest_opts
.zo_pool
, d
);
5978 if (ztest_opts
.zo_verbose
>= 3)
5979 (void) printf("Destroying %s to free up space\n", name
);
5982 * Cleanup any non-standard clones and snapshots. In general,
5983 * ztest thread t operates on dataset (t % zopt_datasets),
5984 * so there may be more than one thing to clean up.
5986 for (t
= d
; t
< ztest_opts
.zo_threads
;
5987 t
+= ztest_opts
.zo_datasets
)
5988 ztest_dsl_dataset_cleanup(name
, t
);
5990 (void) dmu_objset_find(name
, ztest_objset_destroy_cb
, NULL
,
5991 DS_FIND_SNAPSHOTS
| DS_FIND_CHILDREN
);
5995 ztest_dataset_dirobj_verify(ztest_ds_t
*zd
)
5997 uint64_t usedobjs
, dirobjs
, scratch
;
6000 * ZTEST_DIROBJ is the object directory for the entire dataset.
6001 * Therefore, the number of objects in use should equal the
6002 * number of ZTEST_DIROBJ entries, +1 for ZTEST_DIROBJ itself.
6003 * If not, we have an object leak.
6005 * Note that we can only check this in ztest_dataset_open(),
6006 * when the open-context and syncing-context values agree.
6007 * That's because zap_count() returns the open-context value,
6008 * while dmu_objset_space() returns the rootbp fill count.
6010 VERIFY3U(0, ==, zap_count(zd
->zd_os
, ZTEST_DIROBJ
, &dirobjs
));
6011 dmu_objset_space(zd
->zd_os
, &scratch
, &scratch
, &usedobjs
, &scratch
);
6012 ASSERT3U(dirobjs
+ 1, ==, usedobjs
);
6016 ztest_dataset_open(int d
)
6018 ztest_ds_t
*zd
= &ztest_ds
[d
];
6019 uint64_t committed_seq
= ZTEST_GET_SHARED_DS(d
)->zd_seq
;
6022 char name
[MAXNAMELEN
];
6025 ztest_dataset_name(name
, ztest_opts
.zo_pool
, d
);
6027 (void) rw_rdlock(&ztest_name_lock
);
6029 error
= ztest_dataset_create(name
);
6030 if (error
== ENOSPC
) {
6031 (void) rw_unlock(&ztest_name_lock
);
6032 ztest_record_enospc(FTAG
);
6035 ASSERT(error
== 0 || error
== EEXIST
);
6037 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, zd
, &os
));
6038 (void) rw_unlock(&ztest_name_lock
);
6040 ztest_zd_init(zd
, ZTEST_GET_SHARED_DS(d
), os
);
6042 zilog
= zd
->zd_zilog
;
6044 if (zilog
->zl_header
->zh_claim_lr_seq
!= 0 &&
6045 zilog
->zl_header
->zh_claim_lr_seq
< committed_seq
)
6046 fatal(0, "missing log records: claimed %llu < committed %llu",
6047 zilog
->zl_header
->zh_claim_lr_seq
, committed_seq
);
6049 ztest_dataset_dirobj_verify(zd
);
6051 zil_replay(os
, zd
, ztest_replay_vector
);
6053 ztest_dataset_dirobj_verify(zd
);
6055 if (ztest_opts
.zo_verbose
>= 6)
6056 (void) printf("%s replay %llu blocks, %llu records, seq %llu\n",
6058 (u_longlong_t
)zilog
->zl_parse_blk_count
,
6059 (u_longlong_t
)zilog
->zl_parse_lr_count
,
6060 (u_longlong_t
)zilog
->zl_replaying_seq
);
6062 zilog
= zil_open(os
, ztest_get_data
);
6064 if (zilog
->zl_replaying_seq
!= 0 &&
6065 zilog
->zl_replaying_seq
< committed_seq
)
6066 fatal(0, "missing log records: replayed %llu < committed %llu",
6067 zilog
->zl_replaying_seq
, committed_seq
);
6073 ztest_dataset_close(int d
)
6075 ztest_ds_t
*zd
= &ztest_ds
[d
];
6077 zil_close(zd
->zd_zilog
);
6078 dmu_objset_disown(zd
->zd_os
, zd
);
6084 * Kick off threads to run tests on all datasets in parallel.
6087 ztest_run(ztest_shared_t
*zs
)
6092 kthread_t
*resume_thread
;
6097 ztest_exiting
= B_FALSE
;
6100 * Initialize parent/child shared state.
6102 mutex_init(&ztest_vdev_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
6103 VERIFY(rwlock_init(&ztest_name_lock
, USYNC_THREAD
, NULL
) == 0);
6105 zs
->zs_thread_start
= gethrtime();
6106 zs
->zs_thread_stop
=
6107 zs
->zs_thread_start
+ ztest_opts
.zo_passtime
* NANOSEC
;
6108 zs
->zs_thread_stop
= MIN(zs
->zs_thread_stop
, zs
->zs_proc_stop
);
6109 zs
->zs_thread_kill
= zs
->zs_thread_stop
;
6110 if (ztest_random(100) < ztest_opts
.zo_killrate
) {
6111 zs
->zs_thread_kill
-=
6112 ztest_random(ztest_opts
.zo_passtime
* NANOSEC
);
6115 mutex_init(&zcl
.zcl_callbacks_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
6117 list_create(&zcl
.zcl_callbacks
, sizeof (ztest_cb_data_t
),
6118 offsetof(ztest_cb_data_t
, zcd_node
));
6123 kernel_init(FREAD
| FWRITE
);
6124 VERIFY0(spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
6125 spa
->spa_debug
= B_TRUE
;
6126 metaslab_preload_limit
= ztest_random(20) + 1;
6129 VERIFY0(dmu_objset_own(ztest_opts
.zo_pool
,
6130 DMU_OST_ANY
, B_TRUE
, FTAG
, &os
));
6131 zs
->zs_guid
= dmu_objset_fsid_guid(os
);
6132 dmu_objset_disown(os
, FTAG
);
6134 spa
->spa_dedup_ditto
= 2 * ZIO_DEDUPDITTO_MIN
;
6137 * We don't expect the pool to suspend unless maxfaults == 0,
6138 * in which case ztest_fault_inject() temporarily takes away
6139 * the only valid replica.
6141 if (MAXFAULTS() == 0)
6142 spa
->spa_failmode
= ZIO_FAILURE_MODE_WAIT
;
6144 spa
->spa_failmode
= ZIO_FAILURE_MODE_PANIC
;
6147 * Create a thread to periodically resume suspended I/O.
6149 VERIFY3P((resume_thread
= zk_thread_create(NULL
, 0,
6150 (thread_func_t
)ztest_resume_thread
, spa
, TS_RUN
, NULL
, 0, 0,
6151 PTHREAD_CREATE_JOINABLE
)), !=, NULL
);
6155 * Set a deadman alarm to abort() if we hang.
6157 signal(SIGALRM
, ztest_deadman_alarm
);
6158 alarm((zs
->zs_thread_stop
- zs
->zs_thread_start
) / NANOSEC
+ GRACE
);
6162 * Verify that we can safely inquire about about any object,
6163 * whether it's allocated or not. To make it interesting,
6164 * we probe a 5-wide window around each power of two.
6165 * This hits all edge cases, including zero and the max.
6167 for (t
= 0; t
< 64; t
++) {
6168 for (d
= -5; d
<= 5; d
++) {
6169 error
= dmu_object_info(spa
->spa_meta_objset
,
6170 (1ULL << t
) + d
, NULL
);
6171 ASSERT(error
== 0 || error
== ENOENT
||
6177 * If we got any ENOSPC errors on the previous run, destroy something.
6179 if (zs
->zs_enospc_count
!= 0) {
6180 int d
= ztest_random(ztest_opts
.zo_datasets
);
6181 ztest_dataset_destroy(d
);
6183 zs
->zs_enospc_count
= 0;
6185 tid
= umem_zalloc(ztest_opts
.zo_threads
* sizeof (kt_did_t
),
6188 if (ztest_opts
.zo_verbose
>= 4)
6189 (void) printf("starting main threads...\n");
6192 * Kick off all the tests that run in parallel.
6194 for (t
= 0; t
< ztest_opts
.zo_threads
; t
++) {
6197 if (t
< ztest_opts
.zo_datasets
&&
6198 ztest_dataset_open(t
) != 0)
6201 VERIFY3P(thread
= zk_thread_create(NULL
, 0,
6202 (thread_func_t
)ztest_thread
,
6203 (void *)(uintptr_t)t
, TS_RUN
, NULL
, 0, 0,
6204 PTHREAD_CREATE_JOINABLE
), !=, NULL
);
6205 tid
[t
] = thread
->t_tid
;
6209 * Wait for all of the tests to complete. We go in reverse order
6210 * so we don't close datasets while threads are still using them.
6212 for (t
= ztest_opts
.zo_threads
- 1; t
>= 0; t
--) {
6213 thread_join(tid
[t
]);
6214 if (t
< ztest_opts
.zo_datasets
)
6215 ztest_dataset_close(t
);
6218 txg_wait_synced(spa_get_dsl(spa
), 0);
6220 zs
->zs_alloc
= metaslab_class_get_alloc(spa_normal_class(spa
));
6221 zs
->zs_space
= metaslab_class_get_space(spa_normal_class(spa
));
6223 umem_free(tid
, ztest_opts
.zo_threads
* sizeof (kt_did_t
));
6225 /* Kill the resume thread */
6226 ztest_exiting
= B_TRUE
;
6227 thread_join(resume_thread
->t_tid
);
6231 * Right before closing the pool, kick off a bunch of async I/O;
6232 * spa_close() should wait for it to complete.
6234 for (object
= 1; object
< 50; object
++) {
6235 dmu_prefetch(spa
->spa_meta_objset
, object
, 0, 0, 1ULL << 20,
6236 ZIO_PRIORITY_SYNC_READ
);
6239 /* Verify that at least one commit cb was called in a timely fashion */
6240 if (zc_cb_counter
>= ZTEST_COMMIT_CB_MIN_REG
)
6241 VERIFY0(zc_min_txg_delay
);
6243 spa_close(spa
, FTAG
);
6246 * Verify that we can loop over all pools.
6248 mutex_enter(&spa_namespace_lock
);
6249 for (spa
= spa_next(NULL
); spa
!= NULL
; spa
= spa_next(spa
))
6250 if (ztest_opts
.zo_verbose
> 3)
6251 (void) printf("spa_next: found %s\n", spa_name(spa
));
6252 mutex_exit(&spa_namespace_lock
);
6255 * Verify that we can export the pool and reimport it under a
6258 if (ztest_random(2) == 0) {
6259 char name
[MAXNAMELEN
];
6260 (void) snprintf(name
, MAXNAMELEN
, "%s_import",
6261 ztest_opts
.zo_pool
);
6262 ztest_spa_import_export(ztest_opts
.zo_pool
, name
);
6263 ztest_spa_import_export(name
, ztest_opts
.zo_pool
);
6268 list_destroy(&zcl
.zcl_callbacks
);
6269 mutex_destroy(&zcl
.zcl_callbacks_lock
);
6270 (void) rwlock_destroy(&ztest_name_lock
);
6271 mutex_destroy(&ztest_vdev_lock
);
6277 ztest_ds_t
*zd
= &ztest_ds
[0];
6281 if (ztest_opts
.zo_verbose
>= 3)
6282 (void) printf("testing spa_freeze()...\n");
6284 kernel_init(FREAD
| FWRITE
);
6285 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
6286 VERIFY3U(0, ==, ztest_dataset_open(0));
6287 spa
->spa_debug
= B_TRUE
;
6291 * Force the first log block to be transactionally allocated.
6292 * We have to do this before we freeze the pool -- otherwise
6293 * the log chain won't be anchored.
6295 while (BP_IS_HOLE(&zd
->zd_zilog
->zl_header
->zh_log
)) {
6296 ztest_dmu_object_alloc_free(zd
, 0);
6297 zil_commit(zd
->zd_zilog
, 0);
6300 txg_wait_synced(spa_get_dsl(spa
), 0);
6303 * Freeze the pool. This stops spa_sync() from doing anything,
6304 * so that the only way to record changes from now on is the ZIL.
6309 * Because it is hard to predict how much space a write will actually
6310 * require beforehand, we leave ourselves some fudge space to write over
6313 uint64_t capacity
= metaslab_class_get_space(spa_normal_class(spa
)) / 2;
6316 * Run tests that generate log records but don't alter the pool config
6317 * or depend on DSL sync tasks (snapshots, objset create/destroy, etc).
6318 * We do a txg_wait_synced() after each iteration to force the txg
6319 * to increase well beyond the last synced value in the uberblock.
6320 * The ZIL should be OK with that.
6322 * Run a random number of times less than zo_maxloops and ensure we do
6323 * not run out of space on the pool.
6325 while (ztest_random(10) != 0 &&
6326 numloops
++ < ztest_opts
.zo_maxloops
&&
6327 metaslab_class_get_alloc(spa_normal_class(spa
)) < capacity
) {
6329 ztest_od_init(&od
, 0, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0, 0);
6330 VERIFY0(ztest_object_init(zd
, &od
, sizeof (od
), B_FALSE
));
6331 ztest_io(zd
, od
.od_object
,
6332 ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
6333 txg_wait_synced(spa_get_dsl(spa
), 0);
6337 * Commit all of the changes we just generated.
6339 zil_commit(zd
->zd_zilog
, 0);
6340 txg_wait_synced(spa_get_dsl(spa
), 0);
6343 * Close our dataset and close the pool.
6345 ztest_dataset_close(0);
6346 spa_close(spa
, FTAG
);
6350 * Open and close the pool and dataset to induce log replay.
6352 kernel_init(FREAD
| FWRITE
);
6353 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
6354 ASSERT(spa_freeze_txg(spa
) == UINT64_MAX
);
6355 VERIFY3U(0, ==, ztest_dataset_open(0));
6356 ztest_dataset_close(0);
6358 spa
->spa_debug
= B_TRUE
;
6360 txg_wait_synced(spa_get_dsl(spa
), 0);
6361 ztest_reguid(NULL
, 0);
6363 spa_close(spa
, FTAG
);
6368 print_time(hrtime_t t
, char *timebuf
)
6370 hrtime_t s
= t
/ NANOSEC
;
6371 hrtime_t m
= s
/ 60;
6372 hrtime_t h
= m
/ 60;
6373 hrtime_t d
= h
/ 24;
6382 (void) sprintf(timebuf
,
6383 "%llud%02lluh%02llum%02llus", d
, h
, m
, s
);
6385 (void) sprintf(timebuf
, "%lluh%02llum%02llus", h
, m
, s
);
6387 (void) sprintf(timebuf
, "%llum%02llus", m
, s
);
6389 (void) sprintf(timebuf
, "%llus", s
);
6393 make_random_props(void)
6397 VERIFY(nvlist_alloc(&props
, NV_UNIQUE_NAME
, 0) == 0);
6398 if (ztest_random(2) == 0)
6400 VERIFY(nvlist_add_uint64(props
, "autoreplace", 1) == 0);
6406 * Create a storage pool with the given name and initial vdev size.
6407 * Then test spa_freeze() functionality.
6410 ztest_init(ztest_shared_t
*zs
)
6413 nvlist_t
*nvroot
, *props
;
6416 mutex_init(&ztest_vdev_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
6417 VERIFY(rwlock_init(&ztest_name_lock
, USYNC_THREAD
, NULL
) == 0);
6419 kernel_init(FREAD
| FWRITE
);
6422 * Create the storage pool.
6424 (void) spa_destroy(ztest_opts
.zo_pool
);
6425 ztest_shared
->zs_vdev_next_leaf
= 0;
6427 zs
->zs_mirrors
= ztest_opts
.zo_mirrors
;
6428 nvroot
= make_vdev_root(NULL
, NULL
, NULL
, ztest_opts
.zo_vdev_size
, 0,
6429 0, ztest_opts
.zo_raidz
, zs
->zs_mirrors
, 1);
6430 props
= make_random_props();
6431 for (i
= 0; i
< SPA_FEATURES
; i
++) {
6433 VERIFY3S(-1, !=, asprintf(&buf
, "feature@%s",
6434 spa_feature_table
[i
].fi_uname
));
6435 VERIFY3U(0, ==, nvlist_add_uint64(props
, buf
, 0));
6438 VERIFY3U(0, ==, spa_create(ztest_opts
.zo_pool
, nvroot
, props
, NULL
));
6439 nvlist_free(nvroot
);
6442 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
6443 zs
->zs_metaslab_sz
=
6444 1ULL << spa
->spa_root_vdev
->vdev_child
[0]->vdev_ms_shift
;
6445 spa_close(spa
, FTAG
);
6449 ztest_run_zdb(ztest_opts
.zo_pool
);
6453 ztest_run_zdb(ztest_opts
.zo_pool
);
6455 (void) rwlock_destroy(&ztest_name_lock
);
6456 mutex_destroy(&ztest_vdev_lock
);
6462 static char ztest_name_data
[] = "/tmp/ztest.data.XXXXXX";
6464 ztest_fd_data
= mkstemp(ztest_name_data
);
6465 ASSERT3S(ztest_fd_data
, >=, 0);
6466 (void) unlink(ztest_name_data
);
6470 shared_data_size(ztest_shared_hdr_t
*hdr
)
6474 size
= hdr
->zh_hdr_size
;
6475 size
+= hdr
->zh_opts_size
;
6476 size
+= hdr
->zh_size
;
6477 size
+= hdr
->zh_stats_size
* hdr
->zh_stats_count
;
6478 size
+= hdr
->zh_ds_size
* hdr
->zh_ds_count
;
6487 ztest_shared_hdr_t
*hdr
;
6489 hdr
= (void *)mmap(0, P2ROUNDUP(sizeof (*hdr
), getpagesize()),
6490 PROT_READ
| PROT_WRITE
, MAP_SHARED
, ztest_fd_data
, 0);
6491 ASSERT(hdr
!= MAP_FAILED
);
6493 VERIFY3U(0, ==, ftruncate(ztest_fd_data
, sizeof (ztest_shared_hdr_t
)));
6495 hdr
->zh_hdr_size
= sizeof (ztest_shared_hdr_t
);
6496 hdr
->zh_opts_size
= sizeof (ztest_shared_opts_t
);
6497 hdr
->zh_size
= sizeof (ztest_shared_t
);
6498 hdr
->zh_stats_size
= sizeof (ztest_shared_callstate_t
);
6499 hdr
->zh_stats_count
= ZTEST_FUNCS
;
6500 hdr
->zh_ds_size
= sizeof (ztest_shared_ds_t
);
6501 hdr
->zh_ds_count
= ztest_opts
.zo_datasets
;
6503 size
= shared_data_size(hdr
);
6504 VERIFY3U(0, ==, ftruncate(ztest_fd_data
, size
));
6506 (void) munmap((caddr_t
)hdr
, P2ROUNDUP(sizeof (*hdr
), getpagesize()));
6513 ztest_shared_hdr_t
*hdr
;
6516 hdr
= (void *)mmap(0, P2ROUNDUP(sizeof (*hdr
), getpagesize()),
6517 PROT_READ
, MAP_SHARED
, ztest_fd_data
, 0);
6518 ASSERT(hdr
!= MAP_FAILED
);
6520 size
= shared_data_size(hdr
);
6522 (void) munmap((caddr_t
)hdr
, P2ROUNDUP(sizeof (*hdr
), getpagesize()));
6523 hdr
= ztest_shared_hdr
= (void *)mmap(0, P2ROUNDUP(size
, getpagesize()),
6524 PROT_READ
| PROT_WRITE
, MAP_SHARED
, ztest_fd_data
, 0);
6525 ASSERT(hdr
!= MAP_FAILED
);
6526 buf
= (uint8_t *)hdr
;
6528 offset
= hdr
->zh_hdr_size
;
6529 ztest_shared_opts
= (void *)&buf
[offset
];
6530 offset
+= hdr
->zh_opts_size
;
6531 ztest_shared
= (void *)&buf
[offset
];
6532 offset
+= hdr
->zh_size
;
6533 ztest_shared_callstate
= (void *)&buf
[offset
];
6534 offset
+= hdr
->zh_stats_size
* hdr
->zh_stats_count
;
6535 ztest_shared_ds
= (void *)&buf
[offset
];
6539 exec_child(char *cmd
, char *libpath
, boolean_t ignorekill
, int *statusp
)
6543 char *cmdbuf
= NULL
;
6548 cmdbuf
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
6549 (void) strlcpy(cmdbuf
, getexecname(), MAXPATHLEN
);
6554 fatal(1, "fork failed");
6556 if (pid
== 0) { /* child */
6557 char *emptyargv
[2] = { cmd
, NULL
};
6558 char fd_data_str
[12];
6560 struct rlimit rl
= { 1024, 1024 };
6561 (void) setrlimit(RLIMIT_NOFILE
, &rl
);
6563 (void) close(ztest_fd_rand
);
6564 VERIFY(11 >= snprintf(fd_data_str
, 12, "%d", ztest_fd_data
));
6565 VERIFY(0 == setenv("ZTEST_FD_DATA", fd_data_str
, 1));
6567 (void) enable_extended_FILE_stdio(-1, -1);
6568 if (libpath
!= NULL
)
6569 VERIFY(0 == setenv("LD_LIBRARY_PATH", libpath
, 1));
6570 (void) execv(cmd
, emptyargv
);
6571 ztest_dump_core
= B_FALSE
;
6572 fatal(B_TRUE
, "exec failed: %s", cmd
);
6575 if (cmdbuf
!= NULL
) {
6576 umem_free(cmdbuf
, MAXPATHLEN
);
6580 while (waitpid(pid
, &status
, 0) != pid
)
6582 if (statusp
!= NULL
)
6585 if (WIFEXITED(status
)) {
6586 if (WEXITSTATUS(status
) != 0) {
6587 (void) fprintf(stderr
, "child exited with code %d\n",
6588 WEXITSTATUS(status
));
6592 } else if (WIFSIGNALED(status
)) {
6593 if (!ignorekill
|| WTERMSIG(status
) != SIGKILL
) {
6594 (void) fprintf(stderr
, "child died with signal %d\n",
6600 (void) fprintf(stderr
, "something strange happened to child\n");
6607 ztest_run_init(void)
6611 ztest_shared_t
*zs
= ztest_shared
;
6613 ASSERT(ztest_opts
.zo_init
!= 0);
6616 * Blow away any existing copy of zpool.cache
6618 (void) remove(spa_config_path
);
6621 * Create and initialize our storage pool.
6623 for (i
= 1; i
<= ztest_opts
.zo_init
; i
++) {
6624 bzero(zs
, sizeof (ztest_shared_t
));
6625 if (ztest_opts
.zo_verbose
>= 3 &&
6626 ztest_opts
.zo_init
!= 1) {
6627 (void) printf("ztest_init(), pass %d\n", i
);
6634 main(int argc
, char **argv
)
6642 ztest_shared_callstate_t
*zc
;
6649 char *fd_data_str
= getenv("ZTEST_FD_DATA");
6650 struct sigaction action
;
6652 (void) setvbuf(stdout
, NULL
, _IOLBF
, 0);
6654 dprintf_setup(&argc
, argv
);
6656 action
.sa_handler
= sig_handler
;
6657 sigemptyset(&action
.sa_mask
);
6658 action
.sa_flags
= 0;
6660 if (sigaction(SIGSEGV
, &action
, NULL
) < 0) {
6661 (void) fprintf(stderr
, "ztest: cannot catch SIGSEGV: %s.\n",
6666 if (sigaction(SIGABRT
, &action
, NULL
) < 0) {
6667 (void) fprintf(stderr
, "ztest: cannot catch SIGABRT: %s.\n",
6672 ztest_fd_rand
= open("/dev/urandom", O_RDONLY
);
6673 ASSERT3S(ztest_fd_rand
, >=, 0);
6676 process_options(argc
, argv
);
6681 bcopy(&ztest_opts
, ztest_shared_opts
,
6682 sizeof (*ztest_shared_opts
));
6684 ztest_fd_data
= atoi(fd_data_str
);
6686 bcopy(ztest_shared_opts
, &ztest_opts
, sizeof (ztest_opts
));
6688 ASSERT3U(ztest_opts
.zo_datasets
, ==, ztest_shared_hdr
->zh_ds_count
);
6690 /* Override location of zpool.cache */
6691 VERIFY(asprintf((char **)&spa_config_path
, "%s/zpool.cache",
6692 ztest_opts
.zo_dir
) != -1);
6694 ztest_ds
= umem_alloc(ztest_opts
.zo_datasets
* sizeof (ztest_ds_t
),
6699 metaslab_gang_bang
= ztest_opts
.zo_metaslab_gang_bang
;
6700 metaslab_df_alloc_threshold
=
6701 zs
->zs_metaslab_df_alloc_threshold
;
6710 hasalt
= (strlen(ztest_opts
.zo_alt_ztest
) != 0);
6712 if (ztest_opts
.zo_verbose
>= 1) {
6713 (void) printf("%llu vdevs, %d datasets, %d threads,"
6714 " %llu seconds...\n",
6715 (u_longlong_t
)ztest_opts
.zo_vdevs
,
6716 ztest_opts
.zo_datasets
,
6717 ztest_opts
.zo_threads
,
6718 (u_longlong_t
)ztest_opts
.zo_time
);
6721 cmd
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
6722 (void) strlcpy(cmd
, getexecname(), MAXNAMELEN
);
6724 zs
->zs_do_init
= B_TRUE
;
6725 if (strlen(ztest_opts
.zo_alt_ztest
) != 0) {
6726 if (ztest_opts
.zo_verbose
>= 1) {
6727 (void) printf("Executing older ztest for "
6728 "initialization: %s\n", ztest_opts
.zo_alt_ztest
);
6730 VERIFY(!exec_child(ztest_opts
.zo_alt_ztest
,
6731 ztest_opts
.zo_alt_libpath
, B_FALSE
, NULL
));
6733 VERIFY(!exec_child(NULL
, NULL
, B_FALSE
, NULL
));
6735 zs
->zs_do_init
= B_FALSE
;
6737 zs
->zs_proc_start
= gethrtime();
6738 zs
->zs_proc_stop
= zs
->zs_proc_start
+ ztest_opts
.zo_time
* NANOSEC
;
6740 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
6741 zi
= &ztest_info
[f
];
6742 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6743 if (zs
->zs_proc_start
+ zi
->zi_interval
[0] > zs
->zs_proc_stop
)
6744 zc
->zc_next
= UINT64_MAX
;
6746 zc
->zc_next
= zs
->zs_proc_start
+
6747 ztest_random(2 * zi
->zi_interval
[0] + 1);
6751 * Run the tests in a loop. These tests include fault injection
6752 * to verify that self-healing data works, and forced crashes
6753 * to verify that we never lose on-disk consistency.
6755 while (gethrtime() < zs
->zs_proc_stop
) {
6760 * Initialize the workload counters for each function.
6762 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
6763 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6768 /* Set the allocation switch size */
6769 zs
->zs_metaslab_df_alloc_threshold
=
6770 ztest_random(zs
->zs_metaslab_sz
/ 4) + 1;
6772 if (!hasalt
|| ztest_random(2) == 0) {
6773 if (hasalt
&& ztest_opts
.zo_verbose
>= 1) {
6774 (void) printf("Executing newer ztest: %s\n",
6778 killed
= exec_child(cmd
, NULL
, B_TRUE
, &status
);
6780 if (hasalt
&& ztest_opts
.zo_verbose
>= 1) {
6781 (void) printf("Executing older ztest: %s\n",
6782 ztest_opts
.zo_alt_ztest
);
6785 killed
= exec_child(ztest_opts
.zo_alt_ztest
,
6786 ztest_opts
.zo_alt_libpath
, B_TRUE
, &status
);
6793 if (ztest_opts
.zo_verbose
>= 1) {
6794 hrtime_t now
= gethrtime();
6796 now
= MIN(now
, zs
->zs_proc_stop
);
6797 print_time(zs
->zs_proc_stop
- now
, timebuf
);
6798 nicenum(zs
->zs_space
, numbuf
);
6800 (void) printf("Pass %3d, %8s, %3llu ENOSPC, "
6801 "%4.1f%% of %5s used, %3.0f%% done, %8s to go\n",
6803 WIFEXITED(status
) ? "Complete" : "SIGKILL",
6804 (u_longlong_t
)zs
->zs_enospc_count
,
6805 100.0 * zs
->zs_alloc
/ zs
->zs_space
,
6807 100.0 * (now
- zs
->zs_proc_start
) /
6808 (ztest_opts
.zo_time
* NANOSEC
), timebuf
);
6811 if (ztest_opts
.zo_verbose
>= 2) {
6812 (void) printf("\nWorkload summary:\n\n");
6813 (void) printf("%7s %9s %s\n",
6814 "Calls", "Time", "Function");
6815 (void) printf("%7s %9s %s\n",
6816 "-----", "----", "--------");
6817 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
6818 zi
= &ztest_info
[f
];
6819 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6820 print_time(zc
->zc_time
, timebuf
);
6821 (void) printf("%7llu %9s %s\n",
6822 (u_longlong_t
)zc
->zc_count
, timebuf
,
6825 (void) printf("\n");
6829 * It's possible that we killed a child during a rename test,
6830 * in which case we'll have a 'ztest_tmp' pool lying around
6831 * instead of 'ztest'. Do a blind rename in case this happened.
6834 if (spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
) == 0) {
6835 spa_close(spa
, FTAG
);
6837 char tmpname
[MAXNAMELEN
];
6839 kernel_init(FREAD
| FWRITE
);
6840 (void) snprintf(tmpname
, sizeof (tmpname
), "%s_tmp",
6841 ztest_opts
.zo_pool
);
6842 (void) spa_rename(tmpname
, ztest_opts
.zo_pool
);
6846 ztest_run_zdb(ztest_opts
.zo_pool
);
6849 if (ztest_opts
.zo_verbose
>= 1) {
6851 (void) printf("%d runs of older ztest: %s\n", older
,
6852 ztest_opts
.zo_alt_ztest
);
6853 (void) printf("%d runs of newer ztest: %s\n", newer
,
6856 (void) printf("%d killed, %d completed, %.0f%% kill rate\n",
6857 kills
, iters
- kills
, (100.0 * kills
) / MAX(1, iters
));
6860 umem_free(cmd
, MAXNAMELEN
);