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) 2012 by Delphix. All rights reserved.
24 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
28 * The objective of this program is to provide a DMU/ZAP/SPA stress test
29 * that runs entirely in userland, is easy to use, and easy to extend.
31 * The overall design of the ztest program is as follows:
33 * (1) For each major functional area (e.g. adding vdevs to a pool,
34 * creating and destroying datasets, reading and writing objects, etc)
35 * we have a simple routine to test that functionality. These
36 * individual routines do not have to do anything "stressful".
38 * (2) We turn these simple functionality tests into a stress test by
39 * running them all in parallel, with as many threads as desired,
40 * and spread across as many datasets, objects, and vdevs as desired.
42 * (3) While all this is happening, we inject faults into the pool to
43 * verify that self-healing data really works.
45 * (4) Every time we open a dataset, we change its checksum and compression
46 * functions. Thus even individual objects vary from block to block
47 * in which checksum they use and whether they're compressed.
49 * (5) To verify that we never lose on-disk consistency after a crash,
50 * we run the entire test in a child of the main process.
51 * At random times, the child self-immolates with a SIGKILL.
52 * This is the software equivalent of pulling the power cord.
53 * The parent then runs the test again, using the existing
54 * storage pool, as many times as desired. If backwards compatability
55 * testing is enabled ztest will sometimes run the "older" version
56 * of ztest after a SIGKILL.
58 * (6) To verify that we don't have future leaks or temporal incursions,
59 * many of the functional tests record the transaction group number
60 * as part of their data. When reading old data, they verify that
61 * the transaction group number is less than the current, open txg.
62 * If you add a new test, please do this if applicable.
64 * (7) Threads are created with a reduced stack size, for sanity checking.
65 * Therefore, it's important not to allocate huge buffers on the stack.
67 * When run with no arguments, ztest runs for about five minutes and
68 * produces no output if successful. To get a little bit of information,
69 * specify -V. To get more information, specify -VV, and so on.
71 * To turn this into an overnight stress test, use -T to specify run time.
73 * You can ask more more vdevs [-v], datasets [-d], or threads [-t]
74 * to increase the pool capacity, fanout, and overall stress level.
76 * Use the -k option to set the desired frequency of kills.
78 * When ztest invokes itself it passes all relevant information through a
79 * temporary file which is mmap-ed in the child process. This allows shared
80 * memory to survive the exec syscall. The ztest_shared_hdr_t struct is always
81 * stored at offset 0 of this file and contains information on the size and
82 * number of shared structures in the file. The information stored in this file
83 * must remain backwards compatible with older versions of ztest so that
84 * ztest can invoke them during backwards compatibility testing (-B).
87 #include <sys/zfs_context.h>
93 #include <sys/dmu_objset.h>
99 #include <sys/resource.h>
102 #include <sys/zil_impl.h>
103 #include <sys/vdev_impl.h>
104 #include <sys/vdev_file.h>
105 #include <sys/spa_impl.h>
106 #include <sys/metaslab_impl.h>
107 #include <sys/dsl_prop.h>
108 #include <sys/dsl_dataset.h>
109 #include <sys/dsl_scan.h>
110 #include <sys/zio_checksum.h>
111 #include <sys/refcount.h>
113 #include <stdio_ext.h>
121 #include <sys/fs/zfs.h>
122 #include <libnvpair.h>
124 static int ztest_fd_data
= -1;
125 static int ztest_fd_rand
= -1;
127 typedef struct ztest_shared_hdr
{
128 uint64_t zh_hdr_size
;
129 uint64_t zh_opts_size
;
131 uint64_t zh_stats_size
;
132 uint64_t zh_stats_count
;
134 uint64_t zh_ds_count
;
135 } ztest_shared_hdr_t
;
137 static ztest_shared_hdr_t
*ztest_shared_hdr
;
139 typedef struct ztest_shared_opts
{
140 char zo_pool
[MAXNAMELEN
];
141 char zo_dir
[MAXNAMELEN
];
142 char zo_alt_ztest
[MAXNAMELEN
];
143 char zo_alt_libpath
[MAXNAMELEN
];
145 uint64_t zo_vdevtime
;
153 uint64_t zo_passtime
;
154 uint64_t zo_killrate
;
158 uint64_t zo_maxloops
;
159 uint64_t zo_metaslab_gang_bang
;
160 } ztest_shared_opts_t
;
162 static const ztest_shared_opts_t ztest_opts_defaults
= {
163 .zo_pool
= { 'z', 't', 'e', 's', 't', '\0' },
164 .zo_dir
= { '/', 't', 'm', 'p', '\0' },
165 .zo_alt_ztest
= { '\0' },
166 .zo_alt_libpath
= { '\0' },
168 .zo_ashift
= SPA_MINBLOCKSHIFT
,
171 .zo_raidz_parity
= 1,
172 .zo_vdev_size
= SPA_MINDEVSIZE
,
175 .zo_passtime
= 60, /* 60 seconds */
176 .zo_killrate
= 70, /* 70% kill rate */
179 .zo_time
= 300, /* 5 minutes */
180 .zo_maxloops
= 50, /* max loops during spa_freeze() */
181 .zo_metaslab_gang_bang
= 32 << 10
184 extern uint64_t metaslab_gang_bang
;
185 extern uint64_t metaslab_df_alloc_threshold
;
187 static ztest_shared_opts_t
*ztest_shared_opts
;
188 static ztest_shared_opts_t ztest_opts
;
190 typedef struct ztest_shared_ds
{
194 static ztest_shared_ds_t
*ztest_shared_ds
;
195 #define ZTEST_GET_SHARED_DS(d) (&ztest_shared_ds[d])
197 #define BT_MAGIC 0x123456789abcdefULL
198 #define MAXFAULTS() \
199 (MAX(zs->zs_mirrors, 1) * (ztest_opts.zo_raidz_parity + 1) - 1)
203 ZTEST_IO_WRITE_PATTERN
,
204 ZTEST_IO_WRITE_ZEROES
,
210 typedef struct ztest_block_tag
{
220 typedef struct bufwad
{
227 * XXX -- fix zfs range locks to be generic so we can use them here.
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
;
264 char od_name
[MAXNAMELEN
];
270 typedef struct ztest_ds
{
271 ztest_shared_ds_t
*zd_shared
;
273 krwlock_t zd_zilog_lock
;
275 ztest_od_t
*zd_od
; /* debugging aid */
276 char zd_name
[MAXNAMELEN
];
277 kmutex_t zd_dirobj_lock
;
278 rll_t zd_object_lock
[ZTEST_OBJECT_LOCKS
];
279 rll_t zd_range_lock
[ZTEST_RANGE_LOCKS
];
283 * Per-iteration state.
285 typedef void ztest_func_t(ztest_ds_t
*zd
, uint64_t id
);
287 typedef struct ztest_info
{
288 ztest_func_t
*zi_func
; /* test function */
289 uint64_t zi_iters
; /* iterations per execution */
290 uint64_t *zi_interval
; /* execute every <interval> seconds */
293 typedef struct ztest_shared_callstate
{
294 uint64_t zc_count
; /* per-pass count */
295 uint64_t zc_time
; /* per-pass time */
296 uint64_t zc_next
; /* next time to call this function */
297 } ztest_shared_callstate_t
;
299 static ztest_shared_callstate_t
*ztest_shared_callstate
;
300 #define ZTEST_GET_SHARED_CALLSTATE(c) (&ztest_shared_callstate[c])
303 * Note: these aren't static because we want dladdr() to work.
305 ztest_func_t ztest_dmu_read_write
;
306 ztest_func_t ztest_dmu_write_parallel
;
307 ztest_func_t ztest_dmu_object_alloc_free
;
308 ztest_func_t ztest_dmu_commit_callbacks
;
309 ztest_func_t ztest_zap
;
310 ztest_func_t ztest_zap_parallel
;
311 ztest_func_t ztest_zil_commit
;
312 ztest_func_t ztest_zil_remount
;
313 ztest_func_t ztest_dmu_read_write_zcopy
;
314 ztest_func_t ztest_dmu_objset_create_destroy
;
315 ztest_func_t ztest_dmu_prealloc
;
316 ztest_func_t ztest_fzap
;
317 ztest_func_t ztest_dmu_snapshot_create_destroy
;
318 ztest_func_t ztest_dsl_prop_get_set
;
319 ztest_func_t ztest_spa_prop_get_set
;
320 ztest_func_t ztest_spa_create_destroy
;
321 ztest_func_t ztest_fault_inject
;
322 ztest_func_t ztest_ddt_repair
;
323 ztest_func_t ztest_dmu_snapshot_hold
;
324 ztest_func_t ztest_spa_rename
;
325 ztest_func_t ztest_scrub
;
326 ztest_func_t ztest_dsl_dataset_promote_busy
;
327 ztest_func_t ztest_vdev_attach_detach
;
328 ztest_func_t ztest_vdev_LUN_growth
;
329 ztest_func_t ztest_vdev_add_remove
;
330 ztest_func_t ztest_vdev_aux_add_remove
;
331 ztest_func_t ztest_split_pool
;
332 ztest_func_t ztest_reguid
;
334 uint64_t zopt_always
= 0ULL * NANOSEC
; /* all the time */
335 uint64_t zopt_incessant
= 1ULL * NANOSEC
/ 10; /* every 1/10 second */
336 uint64_t zopt_often
= 1ULL * NANOSEC
; /* every second */
337 uint64_t zopt_sometimes
= 10ULL * NANOSEC
; /* every 10 seconds */
338 uint64_t zopt_rarely
= 60ULL * NANOSEC
; /* every 60 seconds */
340 ztest_info_t ztest_info
[] = {
341 { ztest_dmu_read_write
, 1, &zopt_always
},
342 { ztest_dmu_write_parallel
, 10, &zopt_always
},
343 { ztest_dmu_object_alloc_free
, 1, &zopt_always
},
344 { ztest_dmu_commit_callbacks
, 1, &zopt_always
},
345 { ztest_zap
, 30, &zopt_always
},
346 { ztest_zap_parallel
, 100, &zopt_always
},
347 { ztest_split_pool
, 1, &zopt_always
},
348 { ztest_zil_commit
, 1, &zopt_incessant
},
349 { ztest_zil_remount
, 1, &zopt_sometimes
},
350 { ztest_dmu_read_write_zcopy
, 1, &zopt_often
},
351 { ztest_dmu_objset_create_destroy
, 1, &zopt_often
},
352 { ztest_dsl_prop_get_set
, 1, &zopt_often
},
353 { ztest_spa_prop_get_set
, 1, &zopt_sometimes
},
355 { ztest_dmu_prealloc
, 1, &zopt_sometimes
},
357 { ztest_fzap
, 1, &zopt_sometimes
},
358 { ztest_dmu_snapshot_create_destroy
, 1, &zopt_sometimes
},
359 { ztest_spa_create_destroy
, 1, &zopt_sometimes
},
360 { ztest_fault_inject
, 1, &zopt_sometimes
},
361 { ztest_ddt_repair
, 1, &zopt_sometimes
},
362 { ztest_dmu_snapshot_hold
, 1, &zopt_sometimes
},
364 * The reguid test is currently broken. Disable it until
365 * we get around to fixing it.
368 { ztest_reguid
, 1, &zopt_sometimes
},
370 { ztest_spa_rename
, 1, &zopt_rarely
},
371 { ztest_scrub
, 1, &zopt_rarely
},
372 { ztest_dsl_dataset_promote_busy
, 1, &zopt_rarely
},
373 { ztest_vdev_attach_detach
, 1, &zopt_rarely
},
374 { ztest_vdev_LUN_growth
, 1, &zopt_rarely
},
375 { ztest_vdev_add_remove
, 1,
376 &ztest_opts
.zo_vdevtime
},
377 { ztest_vdev_aux_add_remove
, 1,
378 &ztest_opts
.zo_vdevtime
},
381 #define ZTEST_FUNCS (sizeof (ztest_info) / sizeof (ztest_info_t))
384 * The following struct is used to hold a list of uncalled commit callbacks.
385 * The callbacks are ordered by txg number.
387 typedef struct ztest_cb_list
{
388 kmutex_t zcl_callbacks_lock
;
389 list_t zcl_callbacks
;
393 * Stuff we need to share writably between parent and child.
395 typedef struct ztest_shared
{
396 boolean_t zs_do_init
;
397 hrtime_t zs_proc_start
;
398 hrtime_t zs_proc_stop
;
399 hrtime_t zs_thread_start
;
400 hrtime_t zs_thread_stop
;
401 hrtime_t zs_thread_kill
;
402 uint64_t zs_enospc_count
;
403 uint64_t zs_vdev_next_leaf
;
404 uint64_t zs_vdev_aux
;
409 uint64_t zs_metaslab_sz
;
410 uint64_t zs_metaslab_df_alloc_threshold
;
414 #define ID_PARALLEL -1ULL
416 static char ztest_dev_template
[] = "%s/%s.%llua";
417 static char ztest_aux_template
[] = "%s/%s.%s.%llu";
418 ztest_shared_t
*ztest_shared
;
420 static spa_t
*ztest_spa
= NULL
;
421 static ztest_ds_t
*ztest_ds
;
423 static kmutex_t ztest_vdev_lock
;
424 static krwlock_t ztest_name_lock
;
426 static boolean_t ztest_dump_core
= B_TRUE
;
427 static boolean_t ztest_exiting
;
429 /* Global commit callback list */
430 static ztest_cb_list_t zcl
;
431 /* Commit cb delay */
432 static uint64_t zc_min_txg_delay
= UINT64_MAX
;
433 static int zc_cb_counter
= 0;
436 * Minimum number of commit callbacks that need to be registered for us to check
437 * whether the minimum txg delay is acceptable.
439 #define ZTEST_COMMIT_CB_MIN_REG 100
442 * If a number of txgs equal to this threshold have been created after a commit
443 * callback has been registered but not called, then we assume there is an
444 * implementation bug.
446 #define ZTEST_COMMIT_CB_THRESH (TXG_CONCURRENT_STATES + 1000)
448 extern uint64_t metaslab_gang_bang
;
449 extern uint64_t metaslab_df_alloc_threshold
;
452 ZTEST_META_DNODE
= 0,
457 static void usage(boolean_t
) __NORETURN
;
460 * These libumem hooks provide a reasonable set of defaults for the allocator's
461 * debugging facilities.
464 _umem_debug_init(void)
466 return ("default,verbose"); /* $UMEM_DEBUG setting */
470 _umem_logging_init(void)
472 return ("fail,contents"); /* $UMEM_LOGGING setting */
475 #define FATAL_MSG_SZ 1024
480 fatal(int do_perror
, char *message
, ...)
483 int save_errno
= errno
;
486 (void) fflush(stdout
);
487 buf
= umem_alloc(FATAL_MSG_SZ
, UMEM_NOFAIL
);
489 va_start(args
, message
);
490 (void) sprintf(buf
, "ztest: ");
492 (void) vsprintf(buf
+ strlen(buf
), message
, args
);
495 (void) snprintf(buf
+ strlen(buf
), FATAL_MSG_SZ
- strlen(buf
),
496 ": %s", strerror(save_errno
));
498 (void) fprintf(stderr
, "%s\n", buf
);
499 fatal_msg
= buf
; /* to ease debugging */
506 str2shift(const char *buf
)
508 const char *ends
= "BKMGTPEZ";
513 for (i
= 0; i
< strlen(ends
); i
++) {
514 if (toupper(buf
[0]) == ends
[i
])
517 if (i
== strlen(ends
)) {
518 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n",
522 if (buf
[1] == '\0' || (toupper(buf
[1]) == 'B' && buf
[2] == '\0')) {
525 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n", buf
);
531 nicenumtoull(const char *buf
)
536 val
= strtoull(buf
, &end
, 0);
538 (void) fprintf(stderr
, "ztest: bad numeric value: %s\n", buf
);
540 } else if (end
[0] == '.') {
541 double fval
= strtod(buf
, &end
);
542 fval
*= pow(2, str2shift(end
));
543 if (fval
> UINT64_MAX
) {
544 (void) fprintf(stderr
, "ztest: value too large: %s\n",
548 val
= (uint64_t)fval
;
550 int shift
= str2shift(end
);
551 if (shift
>= 64 || (val
<< shift
) >> shift
!= val
) {
552 (void) fprintf(stderr
, "ztest: value too large: %s\n",
562 usage(boolean_t requested
)
564 const ztest_shared_opts_t
*zo
= &ztest_opts_defaults
;
566 char nice_vdev_size
[10];
567 char nice_gang_bang
[10];
568 FILE *fp
= requested
? stdout
: stderr
;
570 nicenum(zo
->zo_vdev_size
, nice_vdev_size
);
571 nicenum(zo
->zo_metaslab_gang_bang
, nice_gang_bang
);
573 (void) fprintf(fp
, "Usage: %s\n"
574 "\t[-v vdevs (default: %llu)]\n"
575 "\t[-s size_of_each_vdev (default: %s)]\n"
576 "\t[-a alignment_shift (default: %d)] use 0 for random\n"
577 "\t[-m mirror_copies (default: %d)]\n"
578 "\t[-r raidz_disks (default: %d)]\n"
579 "\t[-R raidz_parity (default: %d)]\n"
580 "\t[-d datasets (default: %d)]\n"
581 "\t[-t threads (default: %d)]\n"
582 "\t[-g gang_block_threshold (default: %s)]\n"
583 "\t[-i init_count (default: %d)] initialize pool i times\n"
584 "\t[-k kill_percentage (default: %llu%%)]\n"
585 "\t[-p pool_name (default: %s)]\n"
586 "\t[-f dir (default: %s)] file directory for vdev files\n"
587 "\t[-V] verbose (use multiple times for ever more blather)\n"
588 "\t[-E] use existing pool instead of creating new one\n"
589 "\t[-T time (default: %llu sec)] total run time\n"
590 "\t[-F freezeloops (default: %llu)] max loops in spa_freeze()\n"
591 "\t[-P passtime (default: %llu sec)] time per pass\n"
592 "\t[-B alt_ztest (default: <none>)] alternate ztest path\n"
593 "\t[-h] (print help)\n"
596 (u_longlong_t
)zo
->zo_vdevs
, /* -v */
597 nice_vdev_size
, /* -s */
598 zo
->zo_ashift
, /* -a */
599 zo
->zo_mirrors
, /* -m */
600 zo
->zo_raidz
, /* -r */
601 zo
->zo_raidz_parity
, /* -R */
602 zo
->zo_datasets
, /* -d */
603 zo
->zo_threads
, /* -t */
604 nice_gang_bang
, /* -g */
605 zo
->zo_init
, /* -i */
606 (u_longlong_t
)zo
->zo_killrate
, /* -k */
607 zo
->zo_pool
, /* -p */
609 (u_longlong_t
)zo
->zo_time
, /* -T */
610 (u_longlong_t
)zo
->zo_maxloops
, /* -F */
611 (u_longlong_t
)zo
->zo_passtime
);
612 exit(requested
? 0 : 1);
616 process_options(int argc
, char **argv
)
619 ztest_shared_opts_t
*zo
= &ztest_opts
;
623 char altdir
[MAXNAMELEN
] = { 0 };
625 bcopy(&ztest_opts_defaults
, zo
, sizeof (*zo
));
627 while ((opt
= getopt(argc
, argv
,
628 "v:s:a:m:r:R:d:t:g:i:k:p:f:VET:P:hF:B:")) != EOF
) {
645 value
= nicenumtoull(optarg
);
649 zo
->zo_vdevs
= value
;
652 zo
->zo_vdev_size
= MAX(SPA_MINDEVSIZE
, value
);
655 zo
->zo_ashift
= value
;
658 zo
->zo_mirrors
= value
;
661 zo
->zo_raidz
= MAX(1, value
);
664 zo
->zo_raidz_parity
= MIN(MAX(value
, 1), 3);
667 zo
->zo_datasets
= MAX(1, value
);
670 zo
->zo_threads
= MAX(1, value
);
673 zo
->zo_metaslab_gang_bang
= MAX(SPA_MINBLOCKSIZE
<< 1,
680 zo
->zo_killrate
= value
;
683 (void) strlcpy(zo
->zo_pool
, optarg
,
684 sizeof (zo
->zo_pool
));
687 path
= realpath(optarg
, NULL
);
689 (void) fprintf(stderr
, "error: %s: %s\n",
690 optarg
, strerror(errno
));
693 (void) strlcpy(zo
->zo_dir
, path
,
694 sizeof (zo
->zo_dir
));
707 zo
->zo_passtime
= MAX(1, value
);
710 zo
->zo_maxloops
= MAX(1, value
);
713 (void) strlcpy(altdir
, optarg
, sizeof (altdir
));
725 zo
->zo_raidz_parity
= MIN(zo
->zo_raidz_parity
, zo
->zo_raidz
- 1);
728 (zo
->zo_vdevs
> 0 ? zo
->zo_time
* NANOSEC
/ zo
->zo_vdevs
:
731 if (strlen(altdir
) > 0) {
739 cmd
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
740 realaltdir
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
742 VERIFY(NULL
!= realpath(getexecname(), cmd
));
743 if (0 != access(altdir
, F_OK
)) {
744 ztest_dump_core
= B_FALSE
;
745 fatal(B_TRUE
, "invalid alternate ztest path: %s",
748 VERIFY(NULL
!= realpath(altdir
, realaltdir
));
751 * 'cmd' should be of the form "<anything>/usr/bin/<isa>/ztest".
752 * We want to extract <isa> to determine if we should use
753 * 32 or 64 bit binaries.
755 bin
= strstr(cmd
, "/usr/bin/");
756 ztest
= strstr(bin
, "/ztest");
758 isalen
= ztest
- isa
;
759 (void) snprintf(zo
->zo_alt_ztest
, sizeof (zo
->zo_alt_ztest
),
760 "%s/usr/bin/%.*s/ztest", realaltdir
, isalen
, isa
);
761 (void) snprintf(zo
->zo_alt_libpath
, sizeof (zo
->zo_alt_libpath
),
762 "%s/usr/lib/%.*s", realaltdir
, isalen
, isa
);
764 if (0 != access(zo
->zo_alt_ztest
, X_OK
)) {
765 ztest_dump_core
= B_FALSE
;
766 fatal(B_TRUE
, "invalid alternate ztest: %s",
768 } else if (0 != access(zo
->zo_alt_libpath
, X_OK
)) {
769 ztest_dump_core
= B_FALSE
;
770 fatal(B_TRUE
, "invalid alternate lib directory %s",
774 umem_free(cmd
, MAXPATHLEN
);
775 umem_free(realaltdir
, MAXPATHLEN
);
780 ztest_kill(ztest_shared_t
*zs
)
782 zs
->zs_alloc
= metaslab_class_get_alloc(spa_normal_class(ztest_spa
));
783 zs
->zs_space
= metaslab_class_get_space(spa_normal_class(ztest_spa
));
784 (void) kill(getpid(), SIGKILL
);
788 ztest_random(uint64_t range
)
792 ASSERT3S(ztest_fd_rand
, >=, 0);
797 if (read(ztest_fd_rand
, &r
, sizeof (r
)) != sizeof (r
))
798 fatal(1, "short read from /dev/urandom");
805 ztest_record_enospc(const char *s
)
807 ztest_shared
->zs_enospc_count
++;
811 ztest_get_ashift(void)
813 if (ztest_opts
.zo_ashift
== 0)
814 return (SPA_MINBLOCKSHIFT
+ ztest_random(3));
815 return (ztest_opts
.zo_ashift
);
819 make_vdev_file(char *path
, char *aux
, size_t size
, uint64_t ashift
)
825 pathbuf
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
828 ashift
= ztest_get_ashift();
834 vdev
= ztest_shared
->zs_vdev_aux
;
835 (void) snprintf(path
, MAXPATHLEN
,
836 ztest_aux_template
, ztest_opts
.zo_dir
,
837 ztest_opts
.zo_pool
, aux
, vdev
);
839 vdev
= ztest_shared
->zs_vdev_next_leaf
++;
840 (void) snprintf(path
, MAXPATHLEN
,
841 ztest_dev_template
, ztest_opts
.zo_dir
,
842 ztest_opts
.zo_pool
, vdev
);
847 int fd
= open(path
, O_RDWR
| O_CREAT
| O_TRUNC
, 0666);
849 fatal(1, "can't open %s", path
);
850 if (ftruncate(fd
, size
) != 0)
851 fatal(1, "can't ftruncate %s", path
);
855 VERIFY(nvlist_alloc(&file
, NV_UNIQUE_NAME
, 0) == 0);
856 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_FILE
) == 0);
857 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_PATH
, path
) == 0);
858 VERIFY(nvlist_add_uint64(file
, ZPOOL_CONFIG_ASHIFT
, ashift
) == 0);
859 umem_free(pathbuf
, MAXPATHLEN
);
865 make_vdev_raidz(char *path
, char *aux
, size_t size
, uint64_t ashift
, int r
)
867 nvlist_t
*raidz
, **child
;
871 return (make_vdev_file(path
, aux
, size
, ashift
));
872 child
= umem_alloc(r
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
874 for (c
= 0; c
< r
; c
++)
875 child
[c
] = make_vdev_file(path
, aux
, size
, ashift
);
877 VERIFY(nvlist_alloc(&raidz
, NV_UNIQUE_NAME
, 0) == 0);
878 VERIFY(nvlist_add_string(raidz
, ZPOOL_CONFIG_TYPE
,
879 VDEV_TYPE_RAIDZ
) == 0);
880 VERIFY(nvlist_add_uint64(raidz
, ZPOOL_CONFIG_NPARITY
,
881 ztest_opts
.zo_raidz_parity
) == 0);
882 VERIFY(nvlist_add_nvlist_array(raidz
, ZPOOL_CONFIG_CHILDREN
,
885 for (c
= 0; c
< r
; c
++)
886 nvlist_free(child
[c
]);
888 umem_free(child
, r
* sizeof (nvlist_t
*));
894 make_vdev_mirror(char *path
, char *aux
, size_t size
, uint64_t ashift
,
897 nvlist_t
*mirror
, **child
;
901 return (make_vdev_raidz(path
, aux
, size
, ashift
, r
));
903 child
= umem_alloc(m
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
905 for (c
= 0; c
< m
; c
++)
906 child
[c
] = make_vdev_raidz(path
, aux
, size
, ashift
, r
);
908 VERIFY(nvlist_alloc(&mirror
, NV_UNIQUE_NAME
, 0) == 0);
909 VERIFY(nvlist_add_string(mirror
, ZPOOL_CONFIG_TYPE
,
910 VDEV_TYPE_MIRROR
) == 0);
911 VERIFY(nvlist_add_nvlist_array(mirror
, ZPOOL_CONFIG_CHILDREN
,
914 for (c
= 0; c
< m
; c
++)
915 nvlist_free(child
[c
]);
917 umem_free(child
, m
* sizeof (nvlist_t
*));
923 make_vdev_root(char *path
, char *aux
, size_t size
, uint64_t ashift
,
924 int log
, int r
, int m
, int t
)
926 nvlist_t
*root
, **child
;
931 child
= umem_alloc(t
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
933 for (c
= 0; c
< t
; c
++) {
934 child
[c
] = make_vdev_mirror(path
, aux
, size
, ashift
, r
, m
);
935 VERIFY(nvlist_add_uint64(child
[c
], ZPOOL_CONFIG_IS_LOG
,
939 VERIFY(nvlist_alloc(&root
, NV_UNIQUE_NAME
, 0) == 0);
940 VERIFY(nvlist_add_string(root
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_ROOT
) == 0);
941 VERIFY(nvlist_add_nvlist_array(root
, aux
? aux
: ZPOOL_CONFIG_CHILDREN
,
944 for (c
= 0; c
< t
; c
++)
945 nvlist_free(child
[c
]);
947 umem_free(child
, t
* sizeof (nvlist_t
*));
953 ztest_random_blocksize(void)
955 return (1 << (SPA_MINBLOCKSHIFT
+
956 ztest_random(SPA_MAXBLOCKSHIFT
- SPA_MINBLOCKSHIFT
+ 1)));
960 ztest_random_ibshift(void)
962 return (DN_MIN_INDBLKSHIFT
+
963 ztest_random(DN_MAX_INDBLKSHIFT
- DN_MIN_INDBLKSHIFT
+ 1));
967 ztest_random_vdev_top(spa_t
*spa
, boolean_t log_ok
)
970 vdev_t
*rvd
= spa
->spa_root_vdev
;
973 ASSERT(spa_config_held(spa
, SCL_ALL
, RW_READER
) != 0);
976 top
= ztest_random(rvd
->vdev_children
);
977 tvd
= rvd
->vdev_child
[top
];
978 } while (tvd
->vdev_ishole
|| (tvd
->vdev_islog
&& !log_ok
) ||
979 tvd
->vdev_mg
== NULL
|| tvd
->vdev_mg
->mg_class
== NULL
);
985 ztest_random_dsl_prop(zfs_prop_t prop
)
990 value
= zfs_prop_random_value(prop
, ztest_random(-1ULL));
991 } while (prop
== ZFS_PROP_CHECKSUM
&& value
== ZIO_CHECKSUM_OFF
);
997 ztest_dsl_prop_set_uint64(char *osname
, zfs_prop_t prop
, uint64_t value
,
1000 const char *propname
= zfs_prop_to_name(prop
);
1001 const char *valname
;
1006 error
= dsl_prop_set(osname
, propname
,
1007 (inherit
? ZPROP_SRC_NONE
: ZPROP_SRC_LOCAL
),
1008 sizeof (value
), 1, &value
);
1010 if (error
== ENOSPC
) {
1011 ztest_record_enospc(FTAG
);
1014 ASSERT3U(error
, ==, 0);
1016 setpoint
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
1017 VERIFY3U(dsl_prop_get(osname
, propname
, sizeof (curval
),
1018 1, &curval
, setpoint
), ==, 0);
1020 if (ztest_opts
.zo_verbose
>= 6) {
1021 VERIFY(zfs_prop_index_to_string(prop
, curval
, &valname
) == 0);
1022 (void) printf("%s %s = %s at '%s'\n",
1023 osname
, propname
, valname
, setpoint
);
1025 umem_free(setpoint
, MAXPATHLEN
);
1031 ztest_spa_prop_set_uint64(zpool_prop_t prop
, uint64_t value
)
1033 spa_t
*spa
= ztest_spa
;
1034 nvlist_t
*props
= NULL
;
1037 VERIFY(nvlist_alloc(&props
, NV_UNIQUE_NAME
, 0) == 0);
1038 VERIFY(nvlist_add_uint64(props
, zpool_prop_to_name(prop
), value
) == 0);
1040 error
= spa_prop_set(spa
, props
);
1044 if (error
== ENOSPC
) {
1045 ztest_record_enospc(FTAG
);
1048 ASSERT3U(error
, ==, 0);
1054 ztest_rll_init(rll_t
*rll
)
1056 rll
->rll_writer
= NULL
;
1057 rll
->rll_readers
= 0;
1058 mutex_init(&rll
->rll_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
1059 cv_init(&rll
->rll_cv
, NULL
, CV_DEFAULT
, NULL
);
1063 ztest_rll_destroy(rll_t
*rll
)
1065 ASSERT(rll
->rll_writer
== NULL
);
1066 ASSERT(rll
->rll_readers
== 0);
1067 mutex_destroy(&rll
->rll_lock
);
1068 cv_destroy(&rll
->rll_cv
);
1072 ztest_rll_lock(rll_t
*rll
, rl_type_t type
)
1074 mutex_enter(&rll
->rll_lock
);
1076 if (type
== RL_READER
) {
1077 while (rll
->rll_writer
!= NULL
)
1078 (void) cv_wait(&rll
->rll_cv
, &rll
->rll_lock
);
1081 while (rll
->rll_writer
!= NULL
|| rll
->rll_readers
)
1082 (void) cv_wait(&rll
->rll_cv
, &rll
->rll_lock
);
1083 rll
->rll_writer
= curthread
;
1086 mutex_exit(&rll
->rll_lock
);
1090 ztest_rll_unlock(rll_t
*rll
)
1092 mutex_enter(&rll
->rll_lock
);
1094 if (rll
->rll_writer
) {
1095 ASSERT(rll
->rll_readers
== 0);
1096 rll
->rll_writer
= NULL
;
1098 ASSERT(rll
->rll_readers
!= 0);
1099 ASSERT(rll
->rll_writer
== NULL
);
1103 if (rll
->rll_writer
== NULL
&& rll
->rll_readers
== 0)
1104 cv_broadcast(&rll
->rll_cv
);
1106 mutex_exit(&rll
->rll_lock
);
1110 ztest_object_lock(ztest_ds_t
*zd
, uint64_t object
, rl_type_t type
)
1112 rll_t
*rll
= &zd
->zd_object_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1114 ztest_rll_lock(rll
, type
);
1118 ztest_object_unlock(ztest_ds_t
*zd
, uint64_t object
)
1120 rll_t
*rll
= &zd
->zd_object_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1122 ztest_rll_unlock(rll
);
1126 ztest_range_lock(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
,
1127 uint64_t size
, rl_type_t type
)
1129 uint64_t hash
= object
^ (offset
% (ZTEST_RANGE_LOCKS
+ 1));
1130 rll_t
*rll
= &zd
->zd_range_lock
[hash
& (ZTEST_RANGE_LOCKS
- 1)];
1133 rl
= umem_alloc(sizeof (*rl
), UMEM_NOFAIL
);
1134 rl
->rl_object
= object
;
1135 rl
->rl_offset
= offset
;
1139 ztest_rll_lock(rll
, type
);
1145 ztest_range_unlock(rl_t
*rl
)
1147 rll_t
*rll
= rl
->rl_lock
;
1149 ztest_rll_unlock(rll
);
1151 umem_free(rl
, sizeof (*rl
));
1155 ztest_zd_init(ztest_ds_t
*zd
, ztest_shared_ds_t
*szd
, objset_t
*os
)
1158 zd
->zd_zilog
= dmu_objset_zil(os
);
1159 zd
->zd_shared
= szd
;
1160 dmu_objset_name(os
, zd
->zd_name
);
1163 if (zd
->zd_shared
!= NULL
)
1164 zd
->zd_shared
->zd_seq
= 0;
1166 rw_init(&zd
->zd_zilog_lock
, NULL
, RW_DEFAULT
, NULL
);
1167 mutex_init(&zd
->zd_dirobj_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
1169 for (l
= 0; l
< ZTEST_OBJECT_LOCKS
; l
++)
1170 ztest_rll_init(&zd
->zd_object_lock
[l
]);
1172 for (l
= 0; l
< ZTEST_RANGE_LOCKS
; l
++)
1173 ztest_rll_init(&zd
->zd_range_lock
[l
]);
1177 ztest_zd_fini(ztest_ds_t
*zd
)
1181 mutex_destroy(&zd
->zd_dirobj_lock
);
1182 rw_destroy(&zd
->zd_zilog_lock
);
1184 for (l
= 0; l
< ZTEST_OBJECT_LOCKS
; l
++)
1185 ztest_rll_destroy(&zd
->zd_object_lock
[l
]);
1187 for (l
= 0; l
< ZTEST_RANGE_LOCKS
; l
++)
1188 ztest_rll_destroy(&zd
->zd_range_lock
[l
]);
1191 #define TXG_MIGHTWAIT (ztest_random(10) == 0 ? TXG_NOWAIT : TXG_WAIT)
1194 ztest_tx_assign(dmu_tx_t
*tx
, uint64_t txg_how
, const char *tag
)
1200 * Attempt to assign tx to some transaction group.
1202 error
= dmu_tx_assign(tx
, txg_how
);
1204 if (error
== ERESTART
) {
1205 ASSERT(txg_how
== TXG_NOWAIT
);
1208 ASSERT3U(error
, ==, ENOSPC
);
1209 ztest_record_enospc(tag
);
1214 txg
= dmu_tx_get_txg(tx
);
1220 ztest_pattern_set(void *buf
, uint64_t size
, uint64_t value
)
1223 uint64_t *ip_end
= (uint64_t *)((uintptr_t)buf
+ (uintptr_t)size
);
1231 ztest_pattern_match(void *buf
, uint64_t size
, uint64_t value
)
1234 uint64_t *ip_end
= (uint64_t *)((uintptr_t)buf
+ (uintptr_t)size
);
1238 diff
|= (value
- *ip
++);
1245 ztest_bt_generate(ztest_block_tag_t
*bt
, objset_t
*os
, uint64_t object
,
1246 uint64_t offset
, uint64_t gen
, uint64_t txg
, uint64_t crtxg
)
1248 bt
->bt_magic
= BT_MAGIC
;
1249 bt
->bt_objset
= dmu_objset_id(os
);
1250 bt
->bt_object
= object
;
1251 bt
->bt_offset
= offset
;
1254 bt
->bt_crtxg
= crtxg
;
1258 ztest_bt_verify(ztest_block_tag_t
*bt
, objset_t
*os
, uint64_t object
,
1259 uint64_t offset
, uint64_t gen
, uint64_t txg
, uint64_t crtxg
)
1261 ASSERT(bt
->bt_magic
== BT_MAGIC
);
1262 ASSERT(bt
->bt_objset
== dmu_objset_id(os
));
1263 ASSERT(bt
->bt_object
== object
);
1264 ASSERT(bt
->bt_offset
== offset
);
1265 ASSERT(bt
->bt_gen
<= gen
);
1266 ASSERT(bt
->bt_txg
<= txg
);
1267 ASSERT(bt
->bt_crtxg
== crtxg
);
1270 static ztest_block_tag_t
*
1271 ztest_bt_bonus(dmu_buf_t
*db
)
1273 dmu_object_info_t doi
;
1274 ztest_block_tag_t
*bt
;
1276 dmu_object_info_from_db(db
, &doi
);
1277 ASSERT3U(doi
.doi_bonus_size
, <=, db
->db_size
);
1278 ASSERT3U(doi
.doi_bonus_size
, >=, sizeof (*bt
));
1279 bt
= (void *)((char *)db
->db_data
+ doi
.doi_bonus_size
- sizeof (*bt
));
1288 #define lrz_type lr_mode
1289 #define lrz_blocksize lr_uid
1290 #define lrz_ibshift lr_gid
1291 #define lrz_bonustype lr_rdev
1292 #define lrz_bonuslen lr_crtime[1]
1295 ztest_log_create(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_create_t
*lr
)
1297 char *name
= (void *)(lr
+ 1); /* name follows lr */
1298 size_t namesize
= strlen(name
) + 1;
1301 if (zil_replaying(zd
->zd_zilog
, tx
))
1304 itx
= zil_itx_create(TX_CREATE
, sizeof (*lr
) + namesize
);
1305 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1306 sizeof (*lr
) + namesize
- sizeof (lr_t
));
1308 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1312 ztest_log_remove(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_remove_t
*lr
, uint64_t object
)
1314 char *name
= (void *)(lr
+ 1); /* name follows lr */
1315 size_t namesize
= strlen(name
) + 1;
1318 if (zil_replaying(zd
->zd_zilog
, tx
))
1321 itx
= zil_itx_create(TX_REMOVE
, sizeof (*lr
) + namesize
);
1322 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1323 sizeof (*lr
) + namesize
- sizeof (lr_t
));
1325 itx
->itx_oid
= object
;
1326 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1330 ztest_log_write(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_write_t
*lr
)
1333 itx_wr_state_t write_state
= ztest_random(WR_NUM_STATES
);
1335 if (zil_replaying(zd
->zd_zilog
, tx
))
1338 if (lr
->lr_length
> ZIL_MAX_LOG_DATA
)
1339 write_state
= WR_INDIRECT
;
1341 itx
= zil_itx_create(TX_WRITE
,
1342 sizeof (*lr
) + (write_state
== WR_COPIED
? lr
->lr_length
: 0));
1344 if (write_state
== WR_COPIED
&&
1345 dmu_read(zd
->zd_os
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
,
1346 ((lr_write_t
*)&itx
->itx_lr
) + 1, DMU_READ_NO_PREFETCH
) != 0) {
1347 zil_itx_destroy(itx
);
1348 itx
= zil_itx_create(TX_WRITE
, sizeof (*lr
));
1349 write_state
= WR_NEED_COPY
;
1351 itx
->itx_private
= zd
;
1352 itx
->itx_wr_state
= write_state
;
1353 itx
->itx_sync
= (ztest_random(8) == 0);
1354 itx
->itx_sod
+= (write_state
== WR_NEED_COPY
? lr
->lr_length
: 0);
1356 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1357 sizeof (*lr
) - sizeof (lr_t
));
1359 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1363 ztest_log_truncate(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_truncate_t
*lr
)
1367 if (zil_replaying(zd
->zd_zilog
, tx
))
1370 itx
= zil_itx_create(TX_TRUNCATE
, sizeof (*lr
));
1371 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1372 sizeof (*lr
) - sizeof (lr_t
));
1374 itx
->itx_sync
= B_FALSE
;
1375 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1379 ztest_log_setattr(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_setattr_t
*lr
)
1383 if (zil_replaying(zd
->zd_zilog
, tx
))
1386 itx
= zil_itx_create(TX_SETATTR
, sizeof (*lr
));
1387 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1388 sizeof (*lr
) - sizeof (lr_t
));
1390 itx
->itx_sync
= B_FALSE
;
1391 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1398 ztest_replay_create(ztest_ds_t
*zd
, lr_create_t
*lr
, boolean_t byteswap
)
1400 char *name
= (void *)(lr
+ 1); /* name follows lr */
1401 objset_t
*os
= zd
->zd_os
;
1402 ztest_block_tag_t
*bbt
;
1409 byteswap_uint64_array(lr
, sizeof (*lr
));
1411 ASSERT(lr
->lr_doid
== ZTEST_DIROBJ
);
1412 ASSERT(name
[0] != '\0');
1414 tx
= dmu_tx_create(os
);
1416 dmu_tx_hold_zap(tx
, lr
->lr_doid
, B_TRUE
, name
);
1418 if (lr
->lrz_type
== DMU_OT_ZAP_OTHER
) {
1419 dmu_tx_hold_zap(tx
, DMU_NEW_OBJECT
, B_TRUE
, NULL
);
1421 dmu_tx_hold_bonus(tx
, DMU_NEW_OBJECT
);
1424 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1428 ASSERT(dmu_objset_zil(os
)->zl_replay
== !!lr
->lr_foid
);
1430 if (lr
->lrz_type
== DMU_OT_ZAP_OTHER
) {
1431 if (lr
->lr_foid
== 0) {
1432 lr
->lr_foid
= zap_create(os
,
1433 lr
->lrz_type
, lr
->lrz_bonustype
,
1434 lr
->lrz_bonuslen
, tx
);
1436 error
= zap_create_claim(os
, lr
->lr_foid
,
1437 lr
->lrz_type
, lr
->lrz_bonustype
,
1438 lr
->lrz_bonuslen
, tx
);
1441 if (lr
->lr_foid
== 0) {
1442 lr
->lr_foid
= dmu_object_alloc(os
,
1443 lr
->lrz_type
, 0, lr
->lrz_bonustype
,
1444 lr
->lrz_bonuslen
, tx
);
1446 error
= dmu_object_claim(os
, lr
->lr_foid
,
1447 lr
->lrz_type
, 0, lr
->lrz_bonustype
,
1448 lr
->lrz_bonuslen
, tx
);
1453 ASSERT3U(error
, ==, EEXIST
);
1454 ASSERT(zd
->zd_zilog
->zl_replay
);
1459 ASSERT(lr
->lr_foid
!= 0);
1461 if (lr
->lrz_type
!= DMU_OT_ZAP_OTHER
)
1462 VERIFY3U(0, ==, dmu_object_set_blocksize(os
, lr
->lr_foid
,
1463 lr
->lrz_blocksize
, lr
->lrz_ibshift
, tx
));
1465 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1466 bbt
= ztest_bt_bonus(db
);
1467 dmu_buf_will_dirty(db
, tx
);
1468 ztest_bt_generate(bbt
, os
, lr
->lr_foid
, -1ULL, lr
->lr_gen
, txg
, txg
);
1469 dmu_buf_rele(db
, FTAG
);
1471 VERIFY3U(0, ==, zap_add(os
, lr
->lr_doid
, name
, sizeof (uint64_t), 1,
1474 (void) ztest_log_create(zd
, tx
, lr
);
1482 ztest_replay_remove(ztest_ds_t
*zd
, lr_remove_t
*lr
, boolean_t byteswap
)
1484 char *name
= (void *)(lr
+ 1); /* name follows lr */
1485 objset_t
*os
= zd
->zd_os
;
1486 dmu_object_info_t doi
;
1488 uint64_t object
, txg
;
1491 byteswap_uint64_array(lr
, sizeof (*lr
));
1493 ASSERT(lr
->lr_doid
== ZTEST_DIROBJ
);
1494 ASSERT(name
[0] != '\0');
1497 zap_lookup(os
, lr
->lr_doid
, name
, sizeof (object
), 1, &object
));
1498 ASSERT(object
!= 0);
1500 ztest_object_lock(zd
, object
, RL_WRITER
);
1502 VERIFY3U(0, ==, dmu_object_info(os
, object
, &doi
));
1504 tx
= dmu_tx_create(os
);
1506 dmu_tx_hold_zap(tx
, lr
->lr_doid
, B_FALSE
, name
);
1507 dmu_tx_hold_free(tx
, object
, 0, DMU_OBJECT_END
);
1509 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1511 ztest_object_unlock(zd
, object
);
1515 if (doi
.doi_type
== DMU_OT_ZAP_OTHER
) {
1516 VERIFY3U(0, ==, zap_destroy(os
, object
, tx
));
1518 VERIFY3U(0, ==, dmu_object_free(os
, object
, tx
));
1521 VERIFY3U(0, ==, zap_remove(os
, lr
->lr_doid
, name
, tx
));
1523 (void) ztest_log_remove(zd
, tx
, lr
, object
);
1527 ztest_object_unlock(zd
, object
);
1533 ztest_replay_write(ztest_ds_t
*zd
, lr_write_t
*lr
, boolean_t byteswap
)
1535 objset_t
*os
= zd
->zd_os
;
1536 void *data
= lr
+ 1; /* data follows lr */
1537 uint64_t offset
, length
;
1538 ztest_block_tag_t
*bt
= data
;
1539 ztest_block_tag_t
*bbt
;
1540 uint64_t gen
, txg
, lrtxg
, crtxg
;
1541 dmu_object_info_t doi
;
1544 arc_buf_t
*abuf
= NULL
;
1548 byteswap_uint64_array(lr
, sizeof (*lr
));
1550 offset
= lr
->lr_offset
;
1551 length
= lr
->lr_length
;
1553 /* If it's a dmu_sync() block, write the whole block */
1554 if (lr
->lr_common
.lrc_reclen
== sizeof (lr_write_t
)) {
1555 uint64_t blocksize
= BP_GET_LSIZE(&lr
->lr_blkptr
);
1556 if (length
< blocksize
) {
1557 offset
-= offset
% blocksize
;
1562 if (bt
->bt_magic
== BSWAP_64(BT_MAGIC
))
1563 byteswap_uint64_array(bt
, sizeof (*bt
));
1565 if (bt
->bt_magic
!= BT_MAGIC
)
1568 ztest_object_lock(zd
, lr
->lr_foid
, RL_READER
);
1569 rl
= ztest_range_lock(zd
, lr
->lr_foid
, offset
, length
, RL_WRITER
);
1571 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1573 dmu_object_info_from_db(db
, &doi
);
1575 bbt
= ztest_bt_bonus(db
);
1576 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1578 crtxg
= bbt
->bt_crtxg
;
1579 lrtxg
= lr
->lr_common
.lrc_txg
;
1581 tx
= dmu_tx_create(os
);
1583 dmu_tx_hold_write(tx
, lr
->lr_foid
, offset
, length
);
1585 if (ztest_random(8) == 0 && length
== doi
.doi_data_block_size
&&
1586 P2PHASE(offset
, length
) == 0)
1587 abuf
= dmu_request_arcbuf(db
, length
);
1589 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1592 dmu_return_arcbuf(abuf
);
1593 dmu_buf_rele(db
, FTAG
);
1594 ztest_range_unlock(rl
);
1595 ztest_object_unlock(zd
, lr
->lr_foid
);
1601 * Usually, verify the old data before writing new data --
1602 * but not always, because we also want to verify correct
1603 * behavior when the data was not recently read into cache.
1605 ASSERT(offset
% doi
.doi_data_block_size
== 0);
1606 if (ztest_random(4) != 0) {
1607 int prefetch
= ztest_random(2) ?
1608 DMU_READ_PREFETCH
: DMU_READ_NO_PREFETCH
;
1609 ztest_block_tag_t rbt
;
1611 VERIFY(dmu_read(os
, lr
->lr_foid
, offset
,
1612 sizeof (rbt
), &rbt
, prefetch
) == 0);
1613 if (rbt
.bt_magic
== BT_MAGIC
) {
1614 ztest_bt_verify(&rbt
, os
, lr
->lr_foid
,
1615 offset
, gen
, txg
, crtxg
);
1620 * Writes can appear to be newer than the bonus buffer because
1621 * the ztest_get_data() callback does a dmu_read() of the
1622 * open-context data, which may be different than the data
1623 * as it was when the write was generated.
1625 if (zd
->zd_zilog
->zl_replay
) {
1626 ztest_bt_verify(bt
, os
, lr
->lr_foid
, offset
,
1627 MAX(gen
, bt
->bt_gen
), MAX(txg
, lrtxg
),
1632 * Set the bt's gen/txg to the bonus buffer's gen/txg
1633 * so that all of the usual ASSERTs will work.
1635 ztest_bt_generate(bt
, os
, lr
->lr_foid
, offset
, gen
, txg
, crtxg
);
1639 dmu_write(os
, lr
->lr_foid
, offset
, length
, data
, tx
);
1641 bcopy(data
, abuf
->b_data
, length
);
1642 dmu_assign_arcbuf(db
, offset
, abuf
, tx
);
1645 (void) ztest_log_write(zd
, tx
, lr
);
1647 dmu_buf_rele(db
, FTAG
);
1651 ztest_range_unlock(rl
);
1652 ztest_object_unlock(zd
, lr
->lr_foid
);
1658 ztest_replay_truncate(ztest_ds_t
*zd
, lr_truncate_t
*lr
, boolean_t byteswap
)
1660 objset_t
*os
= zd
->zd_os
;
1666 byteswap_uint64_array(lr
, sizeof (*lr
));
1668 ztest_object_lock(zd
, lr
->lr_foid
, RL_READER
);
1669 rl
= ztest_range_lock(zd
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
,
1672 tx
= dmu_tx_create(os
);
1674 dmu_tx_hold_free(tx
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
);
1676 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1678 ztest_range_unlock(rl
);
1679 ztest_object_unlock(zd
, lr
->lr_foid
);
1683 VERIFY(dmu_free_range(os
, lr
->lr_foid
, lr
->lr_offset
,
1684 lr
->lr_length
, tx
) == 0);
1686 (void) ztest_log_truncate(zd
, tx
, lr
);
1690 ztest_range_unlock(rl
);
1691 ztest_object_unlock(zd
, lr
->lr_foid
);
1697 ztest_replay_setattr(ztest_ds_t
*zd
, lr_setattr_t
*lr
, boolean_t byteswap
)
1699 objset_t
*os
= zd
->zd_os
;
1702 ztest_block_tag_t
*bbt
;
1703 uint64_t txg
, lrtxg
, crtxg
;
1706 byteswap_uint64_array(lr
, sizeof (*lr
));
1708 ztest_object_lock(zd
, lr
->lr_foid
, RL_WRITER
);
1710 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1712 tx
= dmu_tx_create(os
);
1713 dmu_tx_hold_bonus(tx
, lr
->lr_foid
);
1715 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1717 dmu_buf_rele(db
, FTAG
);
1718 ztest_object_unlock(zd
, lr
->lr_foid
);
1722 bbt
= ztest_bt_bonus(db
);
1723 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1724 crtxg
= bbt
->bt_crtxg
;
1725 lrtxg
= lr
->lr_common
.lrc_txg
;
1727 if (zd
->zd_zilog
->zl_replay
) {
1728 ASSERT(lr
->lr_size
!= 0);
1729 ASSERT(lr
->lr_mode
!= 0);
1733 * Randomly change the size and increment the generation.
1735 lr
->lr_size
= (ztest_random(db
->db_size
/ sizeof (*bbt
)) + 1) *
1737 lr
->lr_mode
= bbt
->bt_gen
+ 1;
1742 * Verify that the current bonus buffer is not newer than our txg.
1744 ztest_bt_verify(bbt
, os
, lr
->lr_foid
, -1ULL, lr
->lr_mode
,
1745 MAX(txg
, lrtxg
), crtxg
);
1747 dmu_buf_will_dirty(db
, tx
);
1749 ASSERT3U(lr
->lr_size
, >=, sizeof (*bbt
));
1750 ASSERT3U(lr
->lr_size
, <=, db
->db_size
);
1751 VERIFY3U(dmu_set_bonus(db
, lr
->lr_size
, tx
), ==, 0);
1752 bbt
= ztest_bt_bonus(db
);
1754 ztest_bt_generate(bbt
, os
, lr
->lr_foid
, -1ULL, lr
->lr_mode
, txg
, crtxg
);
1756 dmu_buf_rele(db
, FTAG
);
1758 (void) ztest_log_setattr(zd
, tx
, lr
);
1762 ztest_object_unlock(zd
, lr
->lr_foid
);
1767 zil_replay_func_t
*ztest_replay_vector
[TX_MAX_TYPE
] = {
1768 NULL
, /* 0 no such transaction type */
1769 (zil_replay_func_t
*)ztest_replay_create
, /* TX_CREATE */
1770 NULL
, /* TX_MKDIR */
1771 NULL
, /* TX_MKXATTR */
1772 NULL
, /* TX_SYMLINK */
1773 (zil_replay_func_t
*)ztest_replay_remove
, /* TX_REMOVE */
1774 NULL
, /* TX_RMDIR */
1776 NULL
, /* TX_RENAME */
1777 (zil_replay_func_t
*)ztest_replay_write
, /* TX_WRITE */
1778 (zil_replay_func_t
*)ztest_replay_truncate
, /* TX_TRUNCATE */
1779 (zil_replay_func_t
*)ztest_replay_setattr
, /* TX_SETATTR */
1781 NULL
, /* TX_CREATE_ACL */
1782 NULL
, /* TX_CREATE_ATTR */
1783 NULL
, /* TX_CREATE_ACL_ATTR */
1784 NULL
, /* TX_MKDIR_ACL */
1785 NULL
, /* TX_MKDIR_ATTR */
1786 NULL
, /* TX_MKDIR_ACL_ATTR */
1787 NULL
, /* TX_WRITE2 */
1791 * ZIL get_data callbacks
1795 ztest_get_done(zgd_t
*zgd
, int error
)
1797 ztest_ds_t
*zd
= zgd
->zgd_private
;
1798 uint64_t object
= zgd
->zgd_rl
->rl_object
;
1801 dmu_buf_rele(zgd
->zgd_db
, zgd
);
1803 ztest_range_unlock(zgd
->zgd_rl
);
1804 ztest_object_unlock(zd
, object
);
1806 if (error
== 0 && zgd
->zgd_bp
)
1807 zil_add_block(zgd
->zgd_zilog
, zgd
->zgd_bp
);
1809 umem_free(zgd
, sizeof (*zgd
));
1813 ztest_get_data(void *arg
, lr_write_t
*lr
, char *buf
, zio_t
*zio
)
1815 ztest_ds_t
*zd
= arg
;
1816 objset_t
*os
= zd
->zd_os
;
1817 uint64_t object
= lr
->lr_foid
;
1818 uint64_t offset
= lr
->lr_offset
;
1819 uint64_t size
= lr
->lr_length
;
1820 blkptr_t
*bp
= &lr
->lr_blkptr
;
1821 uint64_t txg
= lr
->lr_common
.lrc_txg
;
1823 dmu_object_info_t doi
;
1828 ztest_object_lock(zd
, object
, RL_READER
);
1829 error
= dmu_bonus_hold(os
, object
, FTAG
, &db
);
1831 ztest_object_unlock(zd
, object
);
1835 crtxg
= ztest_bt_bonus(db
)->bt_crtxg
;
1837 if (crtxg
== 0 || crtxg
> txg
) {
1838 dmu_buf_rele(db
, FTAG
);
1839 ztest_object_unlock(zd
, object
);
1843 dmu_object_info_from_db(db
, &doi
);
1844 dmu_buf_rele(db
, FTAG
);
1847 zgd
= umem_zalloc(sizeof (*zgd
), UMEM_NOFAIL
);
1848 zgd
->zgd_zilog
= zd
->zd_zilog
;
1849 zgd
->zgd_private
= zd
;
1851 if (buf
!= NULL
) { /* immediate write */
1852 zgd
->zgd_rl
= ztest_range_lock(zd
, object
, offset
, size
,
1855 error
= dmu_read(os
, object
, offset
, size
, buf
,
1856 DMU_READ_NO_PREFETCH
);
1859 size
= doi
.doi_data_block_size
;
1861 offset
= P2ALIGN(offset
, size
);
1863 ASSERT(offset
< size
);
1867 zgd
->zgd_rl
= ztest_range_lock(zd
, object
, offset
, size
,
1870 error
= dmu_buf_hold(os
, object
, offset
, zgd
, &db
,
1871 DMU_READ_NO_PREFETCH
);
1877 ASSERT(db
->db_offset
== offset
);
1878 ASSERT(db
->db_size
== size
);
1880 error
= dmu_sync(zio
, lr
->lr_common
.lrc_txg
,
1881 ztest_get_done
, zgd
);
1888 ztest_get_done(zgd
, error
);
1894 ztest_lr_alloc(size_t lrsize
, char *name
)
1897 size_t namesize
= name
? strlen(name
) + 1 : 0;
1899 lr
= umem_zalloc(lrsize
+ namesize
, UMEM_NOFAIL
);
1902 bcopy(name
, lr
+ lrsize
, namesize
);
1908 ztest_lr_free(void *lr
, size_t lrsize
, char *name
)
1910 size_t namesize
= name
? strlen(name
) + 1 : 0;
1912 umem_free(lr
, lrsize
+ namesize
);
1916 * Lookup a bunch of objects. Returns the number of objects not found.
1919 ztest_lookup(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
1925 ASSERT(mutex_held(&zd
->zd_dirobj_lock
));
1927 for (i
= 0; i
< count
; i
++, od
++) {
1929 error
= zap_lookup(zd
->zd_os
, od
->od_dir
, od
->od_name
,
1930 sizeof (uint64_t), 1, &od
->od_object
);
1932 ASSERT(error
== ENOENT
);
1933 ASSERT(od
->od_object
== 0);
1937 ztest_block_tag_t
*bbt
;
1938 dmu_object_info_t doi
;
1940 ASSERT(od
->od_object
!= 0);
1941 ASSERT(missing
== 0); /* there should be no gaps */
1943 ztest_object_lock(zd
, od
->od_object
, RL_READER
);
1944 VERIFY3U(0, ==, dmu_bonus_hold(zd
->zd_os
,
1945 od
->od_object
, FTAG
, &db
));
1946 dmu_object_info_from_db(db
, &doi
);
1947 bbt
= ztest_bt_bonus(db
);
1948 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1949 od
->od_type
= doi
.doi_type
;
1950 od
->od_blocksize
= doi
.doi_data_block_size
;
1951 od
->od_gen
= bbt
->bt_gen
;
1952 dmu_buf_rele(db
, FTAG
);
1953 ztest_object_unlock(zd
, od
->od_object
);
1961 ztest_create(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
1966 ASSERT(mutex_held(&zd
->zd_dirobj_lock
));
1968 for (i
= 0; i
< count
; i
++, od
++) {
1975 lr_create_t
*lr
= ztest_lr_alloc(sizeof (*lr
), od
->od_name
);
1977 lr
->lr_doid
= od
->od_dir
;
1978 lr
->lr_foid
= 0; /* 0 to allocate, > 0 to claim */
1979 lr
->lrz_type
= od
->od_crtype
;
1980 lr
->lrz_blocksize
= od
->od_crblocksize
;
1981 lr
->lrz_ibshift
= ztest_random_ibshift();
1982 lr
->lrz_bonustype
= DMU_OT_UINT64_OTHER
;
1983 lr
->lrz_bonuslen
= dmu_bonus_max();
1984 lr
->lr_gen
= od
->od_crgen
;
1985 lr
->lr_crtime
[0] = time(NULL
);
1987 if (ztest_replay_create(zd
, lr
, B_FALSE
) != 0) {
1988 ASSERT(missing
== 0);
1992 od
->od_object
= lr
->lr_foid
;
1993 od
->od_type
= od
->od_crtype
;
1994 od
->od_blocksize
= od
->od_crblocksize
;
1995 od
->od_gen
= od
->od_crgen
;
1996 ASSERT(od
->od_object
!= 0);
1999 ztest_lr_free(lr
, sizeof (*lr
), od
->od_name
);
2006 ztest_remove(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
2012 ASSERT(mutex_held(&zd
->zd_dirobj_lock
));
2016 for (i
= count
- 1; i
>= 0; i
--, od
--) {
2022 if (od
->od_object
== 0)
2025 lr_remove_t
*lr
= ztest_lr_alloc(sizeof (*lr
), od
->od_name
);
2027 lr
->lr_doid
= od
->od_dir
;
2029 if ((error
= ztest_replay_remove(zd
, lr
, B_FALSE
)) != 0) {
2030 ASSERT3U(error
, ==, ENOSPC
);
2035 ztest_lr_free(lr
, sizeof (*lr
), od
->od_name
);
2042 ztest_write(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
,
2048 lr
= ztest_lr_alloc(sizeof (*lr
) + size
, NULL
);
2050 lr
->lr_foid
= object
;
2051 lr
->lr_offset
= offset
;
2052 lr
->lr_length
= size
;
2054 BP_ZERO(&lr
->lr_blkptr
);
2056 bcopy(data
, lr
+ 1, size
);
2058 error
= ztest_replay_write(zd
, lr
, B_FALSE
);
2060 ztest_lr_free(lr
, sizeof (*lr
) + size
, NULL
);
2066 ztest_truncate(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
)
2071 lr
= ztest_lr_alloc(sizeof (*lr
), NULL
);
2073 lr
->lr_foid
= object
;
2074 lr
->lr_offset
= offset
;
2075 lr
->lr_length
= size
;
2077 error
= ztest_replay_truncate(zd
, lr
, B_FALSE
);
2079 ztest_lr_free(lr
, sizeof (*lr
), NULL
);
2085 ztest_setattr(ztest_ds_t
*zd
, uint64_t object
)
2090 lr
= ztest_lr_alloc(sizeof (*lr
), NULL
);
2092 lr
->lr_foid
= object
;
2096 error
= ztest_replay_setattr(zd
, lr
, B_FALSE
);
2098 ztest_lr_free(lr
, sizeof (*lr
), NULL
);
2104 ztest_prealloc(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
)
2106 objset_t
*os
= zd
->zd_os
;
2111 txg_wait_synced(dmu_objset_pool(os
), 0);
2113 ztest_object_lock(zd
, object
, RL_READER
);
2114 rl
= ztest_range_lock(zd
, object
, offset
, size
, RL_WRITER
);
2116 tx
= dmu_tx_create(os
);
2118 dmu_tx_hold_write(tx
, object
, offset
, size
);
2120 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
2123 dmu_prealloc(os
, object
, offset
, size
, tx
);
2125 txg_wait_synced(dmu_objset_pool(os
), txg
);
2127 (void) dmu_free_long_range(os
, object
, offset
, size
);
2130 ztest_range_unlock(rl
);
2131 ztest_object_unlock(zd
, object
);
2135 ztest_io(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
)
2137 ztest_block_tag_t wbt
;
2138 dmu_object_info_t doi
;
2139 enum ztest_io_type io_type
;
2143 VERIFY(dmu_object_info(zd
->zd_os
, object
, &doi
) == 0);
2144 blocksize
= doi
.doi_data_block_size
;
2145 data
= umem_alloc(blocksize
, UMEM_NOFAIL
);
2148 * Pick an i/o type at random, biased toward writing block tags.
2150 io_type
= ztest_random(ZTEST_IO_TYPES
);
2151 if (ztest_random(2) == 0)
2152 io_type
= ZTEST_IO_WRITE_TAG
;
2154 (void) rw_enter(&zd
->zd_zilog_lock
, RW_READER
);
2158 case ZTEST_IO_WRITE_TAG
:
2159 ztest_bt_generate(&wbt
, zd
->zd_os
, object
, offset
, 0, 0, 0);
2160 (void) ztest_write(zd
, object
, offset
, sizeof (wbt
), &wbt
);
2163 case ZTEST_IO_WRITE_PATTERN
:
2164 (void) memset(data
, 'a' + (object
+ offset
) % 5, blocksize
);
2165 if (ztest_random(2) == 0) {
2167 * Induce fletcher2 collisions to ensure that
2168 * zio_ddt_collision() detects and resolves them
2169 * when using fletcher2-verify for deduplication.
2171 ((uint64_t *)data
)[0] ^= 1ULL << 63;
2172 ((uint64_t *)data
)[4] ^= 1ULL << 63;
2174 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2177 case ZTEST_IO_WRITE_ZEROES
:
2178 bzero(data
, blocksize
);
2179 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2182 case ZTEST_IO_TRUNCATE
:
2183 (void) ztest_truncate(zd
, object
, offset
, blocksize
);
2186 case ZTEST_IO_SETATTR
:
2187 (void) ztest_setattr(zd
, object
);
2193 (void) rw_exit(&zd
->zd_zilog_lock
);
2195 umem_free(data
, blocksize
);
2199 * Initialize an object description template.
2202 ztest_od_init(ztest_od_t
*od
, uint64_t id
, char *tag
, uint64_t index
,
2203 dmu_object_type_t type
, uint64_t blocksize
, uint64_t gen
)
2205 od
->od_dir
= ZTEST_DIROBJ
;
2208 od
->od_crtype
= type
;
2209 od
->od_crblocksize
= blocksize
? blocksize
: ztest_random_blocksize();
2212 od
->od_type
= DMU_OT_NONE
;
2213 od
->od_blocksize
= 0;
2216 (void) snprintf(od
->od_name
, sizeof (od
->od_name
), "%s(%lld)[%llu]",
2217 tag
, (longlong_t
)id
, (u_longlong_t
)index
);
2221 * Lookup or create the objects for a test using the od template.
2222 * If the objects do not all exist, or if 'remove' is specified,
2223 * remove any existing objects and create new ones. Otherwise,
2224 * use the existing objects.
2227 ztest_object_init(ztest_ds_t
*zd
, ztest_od_t
*od
, size_t size
, boolean_t remove
)
2229 int count
= size
/ sizeof (*od
);
2232 mutex_enter(&zd
->zd_dirobj_lock
);
2233 if ((ztest_lookup(zd
, od
, count
) != 0 || remove
) &&
2234 (ztest_remove(zd
, od
, count
) != 0 ||
2235 ztest_create(zd
, od
, count
) != 0))
2238 mutex_exit(&zd
->zd_dirobj_lock
);
2245 ztest_zil_commit(ztest_ds_t
*zd
, uint64_t id
)
2247 zilog_t
*zilog
= zd
->zd_zilog
;
2249 (void) rw_enter(&zd
->zd_zilog_lock
, RW_READER
);
2251 zil_commit(zilog
, ztest_random(ZTEST_OBJECTS
));
2254 * Remember the committed values in zd, which is in parent/child
2255 * shared memory. If we die, the next iteration of ztest_run()
2256 * will verify that the log really does contain this record.
2258 mutex_enter(&zilog
->zl_lock
);
2259 ASSERT(zd
->zd_shared
!= NULL
);
2260 ASSERT3U(zd
->zd_shared
->zd_seq
, <=, zilog
->zl_commit_lr_seq
);
2261 zd
->zd_shared
->zd_seq
= zilog
->zl_commit_lr_seq
;
2262 mutex_exit(&zilog
->zl_lock
);
2264 (void) rw_exit(&zd
->zd_zilog_lock
);
2268 * This function is designed to simulate the operations that occur during a
2269 * mount/unmount operation. We hold the dataset across these operations in an
2270 * attempt to expose any implicit assumptions about ZIL management.
2274 ztest_zil_remount(ztest_ds_t
*zd
, uint64_t id
)
2276 objset_t
*os
= zd
->zd_os
;
2278 (void) rw_enter(&zd
->zd_zilog_lock
, RW_WRITER
);
2280 /* zfs_sb_teardown() */
2281 zil_close(zd
->zd_zilog
);
2283 /* zfsvfs_setup() */
2284 VERIFY(zil_open(os
, ztest_get_data
) == zd
->zd_zilog
);
2285 zil_replay(os
, zd
, ztest_replay_vector
);
2287 (void) rw_exit(&zd
->zd_zilog_lock
);
2291 * Verify that we can't destroy an active pool, create an existing pool,
2292 * or create a pool with a bad vdev spec.
2296 ztest_spa_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
2298 ztest_shared_opts_t
*zo
= &ztest_opts
;
2303 * Attempt to create using a bad file.
2305 nvroot
= make_vdev_root("/dev/bogus", NULL
, 0, 0, 0, 0, 0, 1);
2306 VERIFY3U(ENOENT
, ==,
2307 spa_create("ztest_bad_file", nvroot
, NULL
, NULL
, NULL
));
2308 nvlist_free(nvroot
);
2311 * Attempt to create using a bad mirror.
2313 nvroot
= make_vdev_root("/dev/bogus", NULL
, 0, 0, 0, 0, 2, 1);
2314 VERIFY3U(ENOENT
, ==,
2315 spa_create("ztest_bad_mirror", nvroot
, NULL
, NULL
, NULL
));
2316 nvlist_free(nvroot
);
2319 * Attempt to create an existing pool. It shouldn't matter
2320 * what's in the nvroot; we should fail with EEXIST.
2322 (void) rw_enter(&ztest_name_lock
, RW_READER
);
2323 nvroot
= make_vdev_root("/dev/bogus", NULL
, 0, 0, 0, 0, 0, 1);
2324 VERIFY3U(EEXIST
, ==, spa_create(zo
->zo_pool
, nvroot
, NULL
, NULL
, NULL
));
2325 nvlist_free(nvroot
);
2326 VERIFY3U(0, ==, spa_open(zo
->zo_pool
, &spa
, FTAG
));
2327 VERIFY3U(EBUSY
, ==, spa_destroy(zo
->zo_pool
));
2328 spa_close(spa
, FTAG
);
2330 (void) rw_exit(&ztest_name_lock
);
2334 vdev_lookup_by_path(vdev_t
*vd
, const char *path
)
2339 if (vd
->vdev_path
!= NULL
&& strcmp(path
, vd
->vdev_path
) == 0)
2342 for (c
= 0; c
< vd
->vdev_children
; c
++)
2343 if ((mvd
= vdev_lookup_by_path(vd
->vdev_child
[c
], path
)) !=
2351 * Find the first available hole which can be used as a top-level.
2354 find_vdev_hole(spa_t
*spa
)
2356 vdev_t
*rvd
= spa
->spa_root_vdev
;
2359 ASSERT(spa_config_held(spa
, SCL_VDEV
, RW_READER
) == SCL_VDEV
);
2361 for (c
= 0; c
< rvd
->vdev_children
; c
++) {
2362 vdev_t
*cvd
= rvd
->vdev_child
[c
];
2364 if (cvd
->vdev_ishole
)
2371 * Verify that vdev_add() works as expected.
2375 ztest_vdev_add_remove(ztest_ds_t
*zd
, uint64_t id
)
2377 ztest_shared_t
*zs
= ztest_shared
;
2378 spa_t
*spa
= ztest_spa
;
2384 mutex_enter(&ztest_vdev_lock
);
2386 MAX(zs
->zs_mirrors
+ zs
->zs_splits
, 1) * ztest_opts
.zo_raidz
;
2388 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2390 ztest_shared
->zs_vdev_next_leaf
= find_vdev_hole(spa
) * leaves
;
2393 * If we have slogs then remove them 1/4 of the time.
2395 if (spa_has_slogs(spa
) && ztest_random(4) == 0) {
2397 * Grab the guid from the head of the log class rotor.
2399 guid
= spa_log_class(spa
)->mc_rotor
->mg_vd
->vdev_guid
;
2401 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2404 * We have to grab the zs_name_lock as writer to
2405 * prevent a race between removing a slog (dmu_objset_find)
2406 * and destroying a dataset. Removing the slog will
2407 * grab a reference on the dataset which may cause
2408 * dmu_objset_destroy() to fail with EBUSY thus
2409 * leaving the dataset in an inconsistent state.
2411 rw_enter(&ztest_name_lock
, RW_WRITER
);
2412 error
= spa_vdev_remove(spa
, guid
, B_FALSE
);
2413 rw_exit(&ztest_name_lock
);
2415 if (error
&& error
!= EEXIST
)
2416 fatal(0, "spa_vdev_remove() = %d", error
);
2418 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2421 * Make 1/4 of the devices be log devices.
2423 nvroot
= make_vdev_root(NULL
, NULL
,
2424 ztest_opts
.zo_vdev_size
, 0,
2425 ztest_random(4) == 0, ztest_opts
.zo_raidz
,
2428 error
= spa_vdev_add(spa
, nvroot
);
2429 nvlist_free(nvroot
);
2431 if (error
== ENOSPC
)
2432 ztest_record_enospc("spa_vdev_add");
2433 else if (error
!= 0)
2434 fatal(0, "spa_vdev_add() = %d", error
);
2437 mutex_exit(&ztest_vdev_lock
);
2441 * Verify that adding/removing aux devices (l2arc, hot spare) works as expected.
2445 ztest_vdev_aux_add_remove(ztest_ds_t
*zd
, uint64_t id
)
2447 ztest_shared_t
*zs
= ztest_shared
;
2448 spa_t
*spa
= ztest_spa
;
2449 vdev_t
*rvd
= spa
->spa_root_vdev
;
2450 spa_aux_vdev_t
*sav
;
2456 path
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
2458 if (ztest_random(2) == 0) {
2459 sav
= &spa
->spa_spares
;
2460 aux
= ZPOOL_CONFIG_SPARES
;
2462 sav
= &spa
->spa_l2cache
;
2463 aux
= ZPOOL_CONFIG_L2CACHE
;
2466 mutex_enter(&ztest_vdev_lock
);
2468 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2470 if (sav
->sav_count
!= 0 && ztest_random(4) == 0) {
2472 * Pick a random device to remove.
2474 guid
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)]->vdev_guid
;
2477 * Find an unused device we can add.
2479 zs
->zs_vdev_aux
= 0;
2482 (void) snprintf(path
, sizeof (path
), ztest_aux_template
,
2483 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
, aux
,
2485 for (c
= 0; c
< sav
->sav_count
; c
++)
2486 if (strcmp(sav
->sav_vdevs
[c
]->vdev_path
,
2489 if (c
== sav
->sav_count
&&
2490 vdev_lookup_by_path(rvd
, path
) == NULL
)
2496 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2502 nvlist_t
*nvroot
= make_vdev_root(NULL
, aux
,
2503 (ztest_opts
.zo_vdev_size
* 5) / 4, 0, 0, 0, 0, 1);
2504 error
= spa_vdev_add(spa
, nvroot
);
2506 fatal(0, "spa_vdev_add(%p) = %d", nvroot
, error
);
2507 nvlist_free(nvroot
);
2510 * Remove an existing device. Sometimes, dirty its
2511 * vdev state first to make sure we handle removal
2512 * of devices that have pending state changes.
2514 if (ztest_random(2) == 0)
2515 (void) vdev_online(spa
, guid
, 0, NULL
);
2517 error
= spa_vdev_remove(spa
, guid
, B_FALSE
);
2518 if (error
!= 0 && error
!= EBUSY
)
2519 fatal(0, "spa_vdev_remove(%llu) = %d", guid
, error
);
2522 mutex_exit(&ztest_vdev_lock
);
2524 umem_free(path
, MAXPATHLEN
);
2528 * split a pool if it has mirror tlvdevs
2532 ztest_split_pool(ztest_ds_t
*zd
, uint64_t id
)
2534 ztest_shared_t
*zs
= ztest_shared
;
2535 spa_t
*spa
= ztest_spa
;
2536 vdev_t
*rvd
= spa
->spa_root_vdev
;
2537 nvlist_t
*tree
, **child
, *config
, *split
, **schild
;
2538 uint_t c
, children
, schildren
= 0, lastlogid
= 0;
2541 mutex_enter(&ztest_vdev_lock
);
2543 /* ensure we have a useable config; mirrors of raidz aren't supported */
2544 if (zs
->zs_mirrors
< 3 || ztest_opts
.zo_raidz
> 1) {
2545 mutex_exit(&ztest_vdev_lock
);
2549 /* clean up the old pool, if any */
2550 (void) spa_destroy("splitp");
2552 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2554 /* generate a config from the existing config */
2555 mutex_enter(&spa
->spa_props_lock
);
2556 VERIFY(nvlist_lookup_nvlist(spa
->spa_config
, ZPOOL_CONFIG_VDEV_TREE
,
2558 mutex_exit(&spa
->spa_props_lock
);
2560 VERIFY(nvlist_lookup_nvlist_array(tree
, ZPOOL_CONFIG_CHILDREN
, &child
,
2563 schild
= malloc(rvd
->vdev_children
* sizeof (nvlist_t
*));
2564 for (c
= 0; c
< children
; c
++) {
2565 vdev_t
*tvd
= rvd
->vdev_child
[c
];
2569 if (tvd
->vdev_islog
|| tvd
->vdev_ops
== &vdev_hole_ops
) {
2570 VERIFY(nvlist_alloc(&schild
[schildren
], NV_UNIQUE_NAME
,
2572 VERIFY(nvlist_add_string(schild
[schildren
],
2573 ZPOOL_CONFIG_TYPE
, VDEV_TYPE_HOLE
) == 0);
2574 VERIFY(nvlist_add_uint64(schild
[schildren
],
2575 ZPOOL_CONFIG_IS_HOLE
, 1) == 0);
2577 lastlogid
= schildren
;
2582 VERIFY(nvlist_lookup_nvlist_array(child
[c
],
2583 ZPOOL_CONFIG_CHILDREN
, &mchild
, &mchildren
) == 0);
2584 VERIFY(nvlist_dup(mchild
[0], &schild
[schildren
++], 0) == 0);
2587 /* OK, create a config that can be used to split */
2588 VERIFY(nvlist_alloc(&split
, NV_UNIQUE_NAME
, 0) == 0);
2589 VERIFY(nvlist_add_string(split
, ZPOOL_CONFIG_TYPE
,
2590 VDEV_TYPE_ROOT
) == 0);
2591 VERIFY(nvlist_add_nvlist_array(split
, ZPOOL_CONFIG_CHILDREN
, schild
,
2592 lastlogid
!= 0 ? lastlogid
: schildren
) == 0);
2594 VERIFY(nvlist_alloc(&config
, NV_UNIQUE_NAME
, 0) == 0);
2595 VERIFY(nvlist_add_nvlist(config
, ZPOOL_CONFIG_VDEV_TREE
, split
) == 0);
2597 for (c
= 0; c
< schildren
; c
++)
2598 nvlist_free(schild
[c
]);
2602 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2604 (void) rw_enter(&ztest_name_lock
, RW_WRITER
);
2605 error
= spa_vdev_split_mirror(spa
, "splitp", config
, NULL
, B_FALSE
);
2606 (void) rw_exit(&ztest_name_lock
);
2608 nvlist_free(config
);
2611 (void) printf("successful split - results:\n");
2612 mutex_enter(&spa_namespace_lock
);
2613 show_pool_stats(spa
);
2614 show_pool_stats(spa_lookup("splitp"));
2615 mutex_exit(&spa_namespace_lock
);
2619 mutex_exit(&ztest_vdev_lock
);
2624 * Verify that we can attach and detach devices.
2628 ztest_vdev_attach_detach(ztest_ds_t
*zd
, uint64_t id
)
2630 ztest_shared_t
*zs
= ztest_shared
;
2631 spa_t
*spa
= ztest_spa
;
2632 spa_aux_vdev_t
*sav
= &spa
->spa_spares
;
2633 vdev_t
*rvd
= spa
->spa_root_vdev
;
2634 vdev_t
*oldvd
, *newvd
, *pvd
;
2638 uint64_t ashift
= ztest_get_ashift();
2639 uint64_t oldguid
, pguid
;
2640 size_t oldsize
, newsize
;
2641 char *oldpath
, *newpath
;
2643 int oldvd_has_siblings
= B_FALSE
;
2644 int newvd_is_spare
= B_FALSE
;
2646 int error
, expected_error
;
2648 oldpath
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
2649 newpath
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
2651 mutex_enter(&ztest_vdev_lock
);
2652 leaves
= MAX(zs
->zs_mirrors
, 1) * ztest_opts
.zo_raidz
;
2654 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2657 * Decide whether to do an attach or a replace.
2659 replacing
= ztest_random(2);
2662 * Pick a random top-level vdev.
2664 top
= ztest_random_vdev_top(spa
, B_TRUE
);
2667 * Pick a random leaf within it.
2669 leaf
= ztest_random(leaves
);
2674 oldvd
= rvd
->vdev_child
[top
];
2675 if (zs
->zs_mirrors
>= 1) {
2676 ASSERT(oldvd
->vdev_ops
== &vdev_mirror_ops
);
2677 ASSERT(oldvd
->vdev_children
>= zs
->zs_mirrors
);
2678 oldvd
= oldvd
->vdev_child
[leaf
/ ztest_opts
.zo_raidz
];
2680 if (ztest_opts
.zo_raidz
> 1) {
2681 ASSERT(oldvd
->vdev_ops
== &vdev_raidz_ops
);
2682 ASSERT(oldvd
->vdev_children
== ztest_opts
.zo_raidz
);
2683 oldvd
= oldvd
->vdev_child
[leaf
% ztest_opts
.zo_raidz
];
2687 * If we're already doing an attach or replace, oldvd may be a
2688 * mirror vdev -- in which case, pick a random child.
2690 while (oldvd
->vdev_children
!= 0) {
2691 oldvd_has_siblings
= B_TRUE
;
2692 ASSERT(oldvd
->vdev_children
>= 2);
2693 oldvd
= oldvd
->vdev_child
[ztest_random(oldvd
->vdev_children
)];
2696 oldguid
= oldvd
->vdev_guid
;
2697 oldsize
= vdev_get_min_asize(oldvd
);
2698 oldvd_is_log
= oldvd
->vdev_top
->vdev_islog
;
2699 (void) strcpy(oldpath
, oldvd
->vdev_path
);
2700 pvd
= oldvd
->vdev_parent
;
2701 pguid
= pvd
->vdev_guid
;
2704 * If oldvd has siblings, then half of the time, detach it.
2706 if (oldvd_has_siblings
&& ztest_random(2) == 0) {
2707 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2708 error
= spa_vdev_detach(spa
, oldguid
, pguid
, B_FALSE
);
2709 if (error
!= 0 && error
!= ENODEV
&& error
!= EBUSY
&&
2711 fatal(0, "detach (%s) returned %d", oldpath
, error
);
2716 * For the new vdev, choose with equal probability between the two
2717 * standard paths (ending in either 'a' or 'b') or a random hot spare.
2719 if (sav
->sav_count
!= 0 && ztest_random(3) == 0) {
2720 newvd
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)];
2721 newvd_is_spare
= B_TRUE
;
2722 (void) strcpy(newpath
, newvd
->vdev_path
);
2724 (void) snprintf(newpath
, MAXPATHLEN
, ztest_dev_template
,
2725 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
2726 top
* leaves
+ leaf
);
2727 if (ztest_random(2) == 0)
2728 newpath
[strlen(newpath
) - 1] = 'b';
2729 newvd
= vdev_lookup_by_path(rvd
, newpath
);
2733 newsize
= vdev_get_min_asize(newvd
);
2736 * Make newsize a little bigger or smaller than oldsize.
2737 * If it's smaller, the attach should fail.
2738 * If it's larger, and we're doing a replace,
2739 * we should get dynamic LUN growth when we're done.
2741 newsize
= 10 * oldsize
/ (9 + ztest_random(3));
2745 * If pvd is not a mirror or root, the attach should fail with ENOTSUP,
2746 * unless it's a replace; in that case any non-replacing parent is OK.
2748 * If newvd is already part of the pool, it should fail with EBUSY.
2750 * If newvd is too small, it should fail with EOVERFLOW.
2752 if (pvd
->vdev_ops
!= &vdev_mirror_ops
&&
2753 pvd
->vdev_ops
!= &vdev_root_ops
&& (!replacing
||
2754 pvd
->vdev_ops
== &vdev_replacing_ops
||
2755 pvd
->vdev_ops
== &vdev_spare_ops
))
2756 expected_error
= ENOTSUP
;
2757 else if (newvd_is_spare
&& (!replacing
|| oldvd_is_log
))
2758 expected_error
= ENOTSUP
;
2759 else if (newvd
== oldvd
)
2760 expected_error
= replacing
? 0 : EBUSY
;
2761 else if (vdev_lookup_by_path(rvd
, newpath
) != NULL
)
2762 expected_error
= EBUSY
;
2763 else if (newsize
< oldsize
)
2764 expected_error
= EOVERFLOW
;
2765 else if (ashift
> oldvd
->vdev_top
->vdev_ashift
)
2766 expected_error
= EDOM
;
2770 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2773 * Build the nvlist describing newpath.
2775 root
= make_vdev_root(newpath
, NULL
, newvd
== NULL
? newsize
: 0,
2776 ashift
, 0, 0, 0, 1);
2778 error
= spa_vdev_attach(spa
, oldguid
, root
, replacing
);
2783 * If our parent was the replacing vdev, but the replace completed,
2784 * then instead of failing with ENOTSUP we may either succeed,
2785 * fail with ENODEV, or fail with EOVERFLOW.
2787 if (expected_error
== ENOTSUP
&&
2788 (error
== 0 || error
== ENODEV
|| error
== EOVERFLOW
))
2789 expected_error
= error
;
2792 * If someone grew the LUN, the replacement may be too small.
2794 if (error
== EOVERFLOW
|| error
== EBUSY
)
2795 expected_error
= error
;
2797 /* XXX workaround 6690467 */
2798 if (error
!= expected_error
&& expected_error
!= EBUSY
) {
2799 fatal(0, "attach (%s %llu, %s %llu, %d) "
2800 "returned %d, expected %d",
2801 oldpath
, (longlong_t
)oldsize
, newpath
,
2802 (longlong_t
)newsize
, replacing
, error
, expected_error
);
2805 mutex_exit(&ztest_vdev_lock
);
2807 umem_free(oldpath
, MAXPATHLEN
);
2808 umem_free(newpath
, MAXPATHLEN
);
2812 * Callback function which expands the physical size of the vdev.
2815 grow_vdev(vdev_t
*vd
, void *arg
)
2817 ASSERTV(spa_t
*spa
= vd
->vdev_spa
);
2818 size_t *newsize
= arg
;
2822 ASSERT(spa_config_held(spa
, SCL_STATE
, RW_READER
) == SCL_STATE
);
2823 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
2825 if ((fd
= open(vd
->vdev_path
, O_RDWR
)) == -1)
2828 fsize
= lseek(fd
, 0, SEEK_END
);
2829 VERIFY(ftruncate(fd
, *newsize
) == 0);
2831 if (ztest_opts
.zo_verbose
>= 6) {
2832 (void) printf("%s grew from %lu to %lu bytes\n",
2833 vd
->vdev_path
, (ulong_t
)fsize
, (ulong_t
)*newsize
);
2840 * Callback function which expands a given vdev by calling vdev_online().
2844 online_vdev(vdev_t
*vd
, void *arg
)
2846 spa_t
*spa
= vd
->vdev_spa
;
2847 vdev_t
*tvd
= vd
->vdev_top
;
2848 uint64_t guid
= vd
->vdev_guid
;
2849 uint64_t generation
= spa
->spa_config_generation
+ 1;
2850 vdev_state_t newstate
= VDEV_STATE_UNKNOWN
;
2853 ASSERT(spa_config_held(spa
, SCL_STATE
, RW_READER
) == SCL_STATE
);
2854 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
2856 /* Calling vdev_online will initialize the new metaslabs */
2857 spa_config_exit(spa
, SCL_STATE
, spa
);
2858 error
= vdev_online(spa
, guid
, ZFS_ONLINE_EXPAND
, &newstate
);
2859 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
2862 * If vdev_online returned an error or the underlying vdev_open
2863 * failed then we abort the expand. The only way to know that
2864 * vdev_open fails is by checking the returned newstate.
2866 if (error
|| newstate
!= VDEV_STATE_HEALTHY
) {
2867 if (ztest_opts
.zo_verbose
>= 5) {
2868 (void) printf("Unable to expand vdev, state %llu, "
2869 "error %d\n", (u_longlong_t
)newstate
, error
);
2873 ASSERT3U(newstate
, ==, VDEV_STATE_HEALTHY
);
2876 * Since we dropped the lock we need to ensure that we're
2877 * still talking to the original vdev. It's possible this
2878 * vdev may have been detached/replaced while we were
2879 * trying to online it.
2881 if (generation
!= spa
->spa_config_generation
) {
2882 if (ztest_opts
.zo_verbose
>= 5) {
2883 (void) printf("vdev configuration has changed, "
2884 "guid %llu, state %llu, expected gen %llu, "
2887 (u_longlong_t
)tvd
->vdev_state
,
2888 (u_longlong_t
)generation
,
2889 (u_longlong_t
)spa
->spa_config_generation
);
2897 * Traverse the vdev tree calling the supplied function.
2898 * We continue to walk the tree until we either have walked all
2899 * children or we receive a non-NULL return from the callback.
2900 * If a NULL callback is passed, then we just return back the first
2901 * leaf vdev we encounter.
2904 vdev_walk_tree(vdev_t
*vd
, vdev_t
*(*func
)(vdev_t
*, void *), void *arg
)
2908 if (vd
->vdev_ops
->vdev_op_leaf
) {
2912 return (func(vd
, arg
));
2915 for (c
= 0; c
< vd
->vdev_children
; c
++) {
2916 vdev_t
*cvd
= vd
->vdev_child
[c
];
2917 if ((cvd
= vdev_walk_tree(cvd
, func
, arg
)) != NULL
)
2924 * Verify that dynamic LUN growth works as expected.
2928 ztest_vdev_LUN_growth(ztest_ds_t
*zd
, uint64_t id
)
2930 spa_t
*spa
= ztest_spa
;
2932 metaslab_class_t
*mc
;
2933 metaslab_group_t
*mg
;
2934 size_t psize
, newsize
;
2936 uint64_t old_class_space
, new_class_space
, old_ms_count
, new_ms_count
;
2938 mutex_enter(&ztest_vdev_lock
);
2939 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
2941 top
= ztest_random_vdev_top(spa
, B_TRUE
);
2943 tvd
= spa
->spa_root_vdev
->vdev_child
[top
];
2946 old_ms_count
= tvd
->vdev_ms_count
;
2947 old_class_space
= metaslab_class_get_space(mc
);
2950 * Determine the size of the first leaf vdev associated with
2951 * our top-level device.
2953 vd
= vdev_walk_tree(tvd
, NULL
, NULL
);
2954 ASSERT3P(vd
, !=, NULL
);
2955 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
2957 psize
= vd
->vdev_psize
;
2960 * We only try to expand the vdev if it's healthy, less than 4x its
2961 * original size, and it has a valid psize.
2963 if (tvd
->vdev_state
!= VDEV_STATE_HEALTHY
||
2964 psize
== 0 || psize
>= 4 * ztest_opts
.zo_vdev_size
) {
2965 spa_config_exit(spa
, SCL_STATE
, spa
);
2966 mutex_exit(&ztest_vdev_lock
);
2970 newsize
= psize
+ psize
/ 8;
2971 ASSERT3U(newsize
, >, psize
);
2973 if (ztest_opts
.zo_verbose
>= 6) {
2974 (void) printf("Expanding LUN %s from %lu to %lu\n",
2975 vd
->vdev_path
, (ulong_t
)psize
, (ulong_t
)newsize
);
2979 * Growing the vdev is a two step process:
2980 * 1). expand the physical size (i.e. relabel)
2981 * 2). online the vdev to create the new metaslabs
2983 if (vdev_walk_tree(tvd
, grow_vdev
, &newsize
) != NULL
||
2984 vdev_walk_tree(tvd
, online_vdev
, NULL
) != NULL
||
2985 tvd
->vdev_state
!= VDEV_STATE_HEALTHY
) {
2986 if (ztest_opts
.zo_verbose
>= 5) {
2987 (void) printf("Could not expand LUN because "
2988 "the vdev configuration changed.\n");
2990 spa_config_exit(spa
, SCL_STATE
, spa
);
2991 mutex_exit(&ztest_vdev_lock
);
2995 spa_config_exit(spa
, SCL_STATE
, spa
);
2998 * Expanding the LUN will update the config asynchronously,
2999 * thus we must wait for the async thread to complete any
3000 * pending tasks before proceeding.
3004 mutex_enter(&spa
->spa_async_lock
);
3005 done
= (spa
->spa_async_thread
== NULL
&& !spa
->spa_async_tasks
);
3006 mutex_exit(&spa
->spa_async_lock
);
3009 txg_wait_synced(spa_get_dsl(spa
), 0);
3010 (void) poll(NULL
, 0, 100);
3013 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3015 tvd
= spa
->spa_root_vdev
->vdev_child
[top
];
3016 new_ms_count
= tvd
->vdev_ms_count
;
3017 new_class_space
= metaslab_class_get_space(mc
);
3019 if (tvd
->vdev_mg
!= mg
|| mg
->mg_class
!= mc
) {
3020 if (ztest_opts
.zo_verbose
>= 5) {
3021 (void) printf("Could not verify LUN expansion due to "
3022 "intervening vdev offline or remove.\n");
3024 spa_config_exit(spa
, SCL_STATE
, spa
);
3025 mutex_exit(&ztest_vdev_lock
);
3030 * Make sure we were able to grow the vdev.
3032 if (new_ms_count
<= old_ms_count
)
3033 fatal(0, "LUN expansion failed: ms_count %llu <= %llu\n",
3034 old_ms_count
, new_ms_count
);
3037 * Make sure we were able to grow the pool.
3039 if (new_class_space
<= old_class_space
)
3040 fatal(0, "LUN expansion failed: class_space %llu <= %llu\n",
3041 old_class_space
, new_class_space
);
3043 if (ztest_opts
.zo_verbose
>= 5) {
3044 char oldnumbuf
[6], newnumbuf
[6];
3046 nicenum(old_class_space
, oldnumbuf
);
3047 nicenum(new_class_space
, newnumbuf
);
3048 (void) printf("%s grew from %s to %s\n",
3049 spa
->spa_name
, oldnumbuf
, newnumbuf
);
3052 spa_config_exit(spa
, SCL_STATE
, spa
);
3053 mutex_exit(&ztest_vdev_lock
);
3057 * Verify that dmu_objset_{create,destroy,open,close} work as expected.
3061 ztest_objset_create_cb(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
)
3064 * Create the objects common to all ztest datasets.
3066 VERIFY(zap_create_claim(os
, ZTEST_DIROBJ
,
3067 DMU_OT_ZAP_OTHER
, DMU_OT_NONE
, 0, tx
) == 0);
3071 ztest_dataset_create(char *dsname
)
3073 uint64_t zilset
= ztest_random(100);
3074 int err
= dmu_objset_create(dsname
, DMU_OST_OTHER
, 0,
3075 ztest_objset_create_cb
, NULL
);
3077 if (err
|| zilset
< 80)
3080 if (ztest_opts
.zo_verbose
>= 5)
3081 (void) printf("Setting dataset %s to sync always\n", dsname
);
3082 return (ztest_dsl_prop_set_uint64(dsname
, ZFS_PROP_SYNC
,
3083 ZFS_SYNC_ALWAYS
, B_FALSE
));
3088 ztest_objset_destroy_cb(const char *name
, void *arg
)
3091 dmu_object_info_t doi
;
3095 * Verify that the dataset contains a directory object.
3097 VERIFY3U(0, ==, dmu_objset_hold(name
, FTAG
, &os
));
3098 error
= dmu_object_info(os
, ZTEST_DIROBJ
, &doi
);
3099 if (error
!= ENOENT
) {
3100 /* We could have crashed in the middle of destroying it */
3101 ASSERT3U(error
, ==, 0);
3102 ASSERT3U(doi
.doi_type
, ==, DMU_OT_ZAP_OTHER
);
3103 ASSERT3S(doi
.doi_physical_blocks_512
, >=, 0);
3105 dmu_objset_rele(os
, FTAG
);
3108 * Destroy the dataset.
3110 VERIFY3U(0, ==, dmu_objset_destroy(name
, B_FALSE
));
3115 ztest_snapshot_create(char *osname
, uint64_t id
)
3117 char snapname
[MAXNAMELEN
];
3120 (void) snprintf(snapname
, MAXNAMELEN
, "%s@%llu", osname
,
3123 error
= dmu_objset_snapshot(osname
, strchr(snapname
, '@') + 1,
3124 NULL
, NULL
, B_FALSE
, B_FALSE
, -1);
3125 if (error
== ENOSPC
) {
3126 ztest_record_enospc(FTAG
);
3129 if (error
!= 0 && error
!= EEXIST
)
3130 fatal(0, "ztest_snapshot_create(%s) = %d", snapname
, error
);
3135 ztest_snapshot_destroy(char *osname
, uint64_t id
)
3137 char snapname
[MAXNAMELEN
];
3140 (void) snprintf(snapname
, MAXNAMELEN
, "%s@%llu", osname
,
3143 error
= dmu_objset_destroy(snapname
, B_FALSE
);
3144 if (error
!= 0 && error
!= ENOENT
)
3145 fatal(0, "ztest_snapshot_destroy(%s) = %d", snapname
, error
);
3151 ztest_dmu_objset_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
3161 zdtmp
= umem_alloc(sizeof (ztest_ds_t
), UMEM_NOFAIL
);
3162 name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3164 (void) rw_enter(&ztest_name_lock
, RW_READER
);
3166 (void) snprintf(name
, MAXNAMELEN
, "%s/temp_%llu",
3167 ztest_opts
.zo_pool
, (u_longlong_t
)id
);
3170 * If this dataset exists from a previous run, process its replay log
3171 * half of the time. If we don't replay it, then dmu_objset_destroy()
3172 * (invoked from ztest_objset_destroy_cb()) should just throw it away.
3174 if (ztest_random(2) == 0 &&
3175 dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os
) == 0) {
3176 ztest_zd_init(zdtmp
, NULL
, os
);
3177 zil_replay(os
, zdtmp
, ztest_replay_vector
);
3178 ztest_zd_fini(zdtmp
);
3179 dmu_objset_disown(os
, FTAG
);
3183 * There may be an old instance of the dataset we're about to
3184 * create lying around from a previous run. If so, destroy it
3185 * and all of its snapshots.
3187 (void) dmu_objset_find(name
, ztest_objset_destroy_cb
, NULL
,
3188 DS_FIND_CHILDREN
| DS_FIND_SNAPSHOTS
);
3191 * Verify that the destroyed dataset is no longer in the namespace.
3193 VERIFY3U(ENOENT
, ==, dmu_objset_hold(name
, FTAG
, &os
));
3196 * Verify that we can create a new dataset.
3198 error
= ztest_dataset_create(name
);
3200 if (error
== ENOSPC
) {
3201 ztest_record_enospc(FTAG
);
3204 fatal(0, "dmu_objset_create(%s) = %d", name
, error
);
3208 dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os
));
3210 ztest_zd_init(zdtmp
, NULL
, os
);
3213 * Open the intent log for it.
3215 zilog
= zil_open(os
, ztest_get_data
);
3218 * Put some objects in there, do a little I/O to them,
3219 * and randomly take a couple of snapshots along the way.
3221 iters
= ztest_random(5);
3222 for (i
= 0; i
< iters
; i
++) {
3223 ztest_dmu_object_alloc_free(zdtmp
, id
);
3224 if (ztest_random(iters
) == 0)
3225 (void) ztest_snapshot_create(name
, i
);
3229 * Verify that we cannot create an existing dataset.
3231 VERIFY3U(EEXIST
, ==,
3232 dmu_objset_create(name
, DMU_OST_OTHER
, 0, NULL
, NULL
));
3235 * Verify that we can hold an objset that is also owned.
3237 VERIFY3U(0, ==, dmu_objset_hold(name
, FTAG
, &os2
));
3238 dmu_objset_rele(os2
, FTAG
);
3241 * Verify that we cannot own an objset that is already owned.
3244 dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os2
));
3247 dmu_objset_disown(os
, FTAG
);
3248 ztest_zd_fini(zdtmp
);
3250 (void) rw_exit(&ztest_name_lock
);
3252 umem_free(name
, MAXNAMELEN
);
3253 umem_free(zdtmp
, sizeof (ztest_ds_t
));
3257 * Verify that dmu_snapshot_{create,destroy,open,close} work as expected.
3260 ztest_dmu_snapshot_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
3262 (void) rw_enter(&ztest_name_lock
, RW_READER
);
3263 (void) ztest_snapshot_destroy(zd
->zd_name
, id
);
3264 (void) ztest_snapshot_create(zd
->zd_name
, id
);
3265 (void) rw_exit(&ztest_name_lock
);
3269 * Cleanup non-standard snapshots and clones.
3272 ztest_dsl_dataset_cleanup(char *osname
, uint64_t id
)
3281 snap1name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3282 clone1name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3283 snap2name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3284 clone2name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3285 snap3name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3287 (void) snprintf(snap1name
, MAXNAMELEN
, "%s@s1_%llu",
3288 osname
, (u_longlong_t
)id
);
3289 (void) snprintf(clone1name
, MAXNAMELEN
, "%s/c1_%llu",
3290 osname
, (u_longlong_t
)id
);
3291 (void) snprintf(snap2name
, MAXNAMELEN
, "%s@s2_%llu",
3292 clone1name
, (u_longlong_t
)id
);
3293 (void) snprintf(clone2name
, MAXNAMELEN
, "%s/c2_%llu",
3294 osname
, (u_longlong_t
)id
);
3295 (void) snprintf(snap3name
, MAXNAMELEN
, "%s@s3_%llu",
3296 clone1name
, (u_longlong_t
)id
);
3298 error
= dmu_objset_destroy(clone2name
, B_FALSE
);
3299 if (error
&& error
!= ENOENT
)
3300 fatal(0, "dmu_objset_destroy(%s) = %d", clone2name
, error
);
3301 error
= dmu_objset_destroy(snap3name
, B_FALSE
);
3302 if (error
&& error
!= ENOENT
)
3303 fatal(0, "dmu_objset_destroy(%s) = %d", snap3name
, error
);
3304 error
= dmu_objset_destroy(snap2name
, B_FALSE
);
3305 if (error
&& error
!= ENOENT
)
3306 fatal(0, "dmu_objset_destroy(%s) = %d", snap2name
, error
);
3307 error
= dmu_objset_destroy(clone1name
, B_FALSE
);
3308 if (error
&& error
!= ENOENT
)
3309 fatal(0, "dmu_objset_destroy(%s) = %d", clone1name
, error
);
3310 error
= dmu_objset_destroy(snap1name
, B_FALSE
);
3311 if (error
&& error
!= ENOENT
)
3312 fatal(0, "dmu_objset_destroy(%s) = %d", snap1name
, error
);
3314 umem_free(snap1name
, MAXNAMELEN
);
3315 umem_free(clone1name
, MAXNAMELEN
);
3316 umem_free(snap2name
, MAXNAMELEN
);
3317 umem_free(clone2name
, MAXNAMELEN
);
3318 umem_free(snap3name
, MAXNAMELEN
);
3322 * Verify dsl_dataset_promote handles EBUSY
3325 ztest_dsl_dataset_promote_busy(ztest_ds_t
*zd
, uint64_t id
)
3334 char *osname
= zd
->zd_name
;
3337 snap1name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3338 clone1name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3339 snap2name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3340 clone2name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3341 snap3name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3343 (void) rw_enter(&ztest_name_lock
, RW_READER
);
3345 ztest_dsl_dataset_cleanup(osname
, id
);
3347 (void) snprintf(snap1name
, MAXNAMELEN
, "%s@s1_%llu",
3348 osname
, (u_longlong_t
)id
);
3349 (void) snprintf(clone1name
, MAXNAMELEN
, "%s/c1_%llu",
3350 osname
, (u_longlong_t
)id
);
3351 (void) snprintf(snap2name
, MAXNAMELEN
, "%s@s2_%llu",
3352 clone1name
, (u_longlong_t
)id
);
3353 (void) snprintf(clone2name
, MAXNAMELEN
, "%s/c2_%llu",
3354 osname
, (u_longlong_t
)id
);
3355 (void) snprintf(snap3name
, MAXNAMELEN
, "%s@s3_%llu",
3356 clone1name
, (u_longlong_t
)id
);
3358 error
= dmu_objset_snapshot(osname
, strchr(snap1name
, '@')+1,
3359 NULL
, NULL
, B_FALSE
, B_FALSE
, -1);
3360 if (error
&& error
!= EEXIST
) {
3361 if (error
== ENOSPC
) {
3362 ztest_record_enospc(FTAG
);
3365 fatal(0, "dmu_take_snapshot(%s) = %d", snap1name
, error
);
3368 error
= dmu_objset_hold(snap1name
, FTAG
, &clone
);
3370 fatal(0, "dmu_open_snapshot(%s) = %d", snap1name
, error
);
3372 error
= dmu_objset_clone(clone1name
, dmu_objset_ds(clone
), 0);
3373 dmu_objset_rele(clone
, FTAG
);
3375 if (error
== ENOSPC
) {
3376 ztest_record_enospc(FTAG
);
3379 fatal(0, "dmu_objset_create(%s) = %d", clone1name
, error
);
3382 error
= dmu_objset_snapshot(clone1name
, strchr(snap2name
, '@')+1,
3383 NULL
, NULL
, B_FALSE
, B_FALSE
, -1);
3384 if (error
&& error
!= EEXIST
) {
3385 if (error
== ENOSPC
) {
3386 ztest_record_enospc(FTAG
);
3389 fatal(0, "dmu_open_snapshot(%s) = %d", snap2name
, error
);
3392 error
= dmu_objset_snapshot(clone1name
, strchr(snap3name
, '@')+1,
3393 NULL
, NULL
, B_FALSE
, B_FALSE
, -1);
3394 if (error
&& error
!= EEXIST
) {
3395 if (error
== ENOSPC
) {
3396 ztest_record_enospc(FTAG
);
3399 fatal(0, "dmu_open_snapshot(%s) = %d", snap3name
, error
);
3402 error
= dmu_objset_hold(snap3name
, FTAG
, &clone
);
3404 fatal(0, "dmu_open_snapshot(%s) = %d", snap3name
, error
);
3406 error
= dmu_objset_clone(clone2name
, dmu_objset_ds(clone
), 0);
3407 dmu_objset_rele(clone
, FTAG
);
3409 if (error
== ENOSPC
) {
3410 ztest_record_enospc(FTAG
);
3413 fatal(0, "dmu_objset_create(%s) = %d", clone2name
, error
);
3416 error
= dsl_dataset_own(snap2name
, B_FALSE
, FTAG
, &ds
);
3418 fatal(0, "dsl_dataset_own(%s) = %d", snap2name
, error
);
3419 error
= dsl_dataset_promote(clone2name
, NULL
);
3421 fatal(0, "dsl_dataset_promote(%s), %d, not EBUSY", clone2name
,
3423 dsl_dataset_disown(ds
, FTAG
);
3426 ztest_dsl_dataset_cleanup(osname
, id
);
3428 (void) rw_exit(&ztest_name_lock
);
3430 umem_free(snap1name
, MAXNAMELEN
);
3431 umem_free(clone1name
, MAXNAMELEN
);
3432 umem_free(snap2name
, MAXNAMELEN
);
3433 umem_free(clone2name
, MAXNAMELEN
);
3434 umem_free(snap3name
, MAXNAMELEN
);
3437 #undef OD_ARRAY_SIZE
3438 #define OD_ARRAY_SIZE 4
3441 * Verify that dmu_object_{alloc,free} work as expected.
3444 ztest_dmu_object_alloc_free(ztest_ds_t
*zd
, uint64_t id
)
3451 size
= sizeof(ztest_od_t
) * OD_ARRAY_SIZE
;
3452 od
= umem_alloc(size
, UMEM_NOFAIL
);
3453 batchsize
= OD_ARRAY_SIZE
;
3455 for (b
= 0; b
< batchsize
; b
++)
3456 ztest_od_init(od
+ b
, id
, FTAG
, b
, DMU_OT_UINT64_OTHER
, 0, 0);
3459 * Destroy the previous batch of objects, create a new batch,
3460 * and do some I/O on the new objects.
3462 if (ztest_object_init(zd
, od
, size
, B_TRUE
) != 0)
3465 while (ztest_random(4 * batchsize
) != 0)
3466 ztest_io(zd
, od
[ztest_random(batchsize
)].od_object
,
3467 ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
3469 umem_free(od
, size
);
3472 #undef OD_ARRAY_SIZE
3473 #define OD_ARRAY_SIZE 2
3476 * Verify that dmu_{read,write} work as expected.
3479 ztest_dmu_read_write(ztest_ds_t
*zd
, uint64_t id
)
3484 objset_t
*os
= zd
->zd_os
;
3485 size
= sizeof(ztest_od_t
) * OD_ARRAY_SIZE
;
3486 od
= umem_alloc(size
, UMEM_NOFAIL
);
3488 int i
, freeit
, error
;
3490 bufwad_t
*packbuf
, *bigbuf
, *pack
, *bigH
, *bigT
;
3491 uint64_t packobj
, packoff
, packsize
, bigobj
, bigoff
, bigsize
;
3492 uint64_t chunksize
= (1000 + ztest_random(1000)) * sizeof (uint64_t);
3493 uint64_t regions
= 997;
3494 uint64_t stride
= 123456789ULL;
3495 uint64_t width
= 40;
3496 int free_percent
= 5;
3499 * This test uses two objects, packobj and bigobj, that are always
3500 * updated together (i.e. in the same tx) so that their contents are
3501 * in sync and can be compared. Their contents relate to each other
3502 * in a simple way: packobj is a dense array of 'bufwad' structures,
3503 * while bigobj is a sparse array of the same bufwads. Specifically,
3504 * for any index n, there are three bufwads that should be identical:
3506 * packobj, at offset n * sizeof (bufwad_t)
3507 * bigobj, at the head of the nth chunk
3508 * bigobj, at the tail of the nth chunk
3510 * The chunk size is arbitrary. It doesn't have to be a power of two,
3511 * and it doesn't have any relation to the object blocksize.
3512 * The only requirement is that it can hold at least two bufwads.
3514 * Normally, we write the bufwad to each of these locations.
3515 * However, free_percent of the time we instead write zeroes to
3516 * packobj and perform a dmu_free_range() on bigobj. By comparing
3517 * bigobj to packobj, we can verify that the DMU is correctly
3518 * tracking which parts of an object are allocated and free,
3519 * and that the contents of the allocated blocks are correct.
3523 * Read the directory info. If it's the first time, set things up.
3525 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, chunksize
);
3526 ztest_od_init(od
+ 1, id
, FTAG
, 1, DMU_OT_UINT64_OTHER
, 0, chunksize
);
3528 if (ztest_object_init(zd
, od
, size
, B_FALSE
) != 0) {
3529 umem_free(od
, size
);
3533 bigobj
= od
[0].od_object
;
3534 packobj
= od
[1].od_object
;
3535 chunksize
= od
[0].od_gen
;
3536 ASSERT(chunksize
== od
[1].od_gen
);
3539 * Prefetch a random chunk of the big object.
3540 * Our aim here is to get some async reads in flight
3541 * for blocks that we may free below; the DMU should
3542 * handle this race correctly.
3544 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
3545 s
= 1 + ztest_random(2 * width
- 1);
3546 dmu_prefetch(os
, bigobj
, n
* chunksize
, s
* chunksize
);
3549 * Pick a random index and compute the offsets into packobj and bigobj.
3551 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
3552 s
= 1 + ztest_random(width
- 1);
3554 packoff
= n
* sizeof (bufwad_t
);
3555 packsize
= s
* sizeof (bufwad_t
);
3557 bigoff
= n
* chunksize
;
3558 bigsize
= s
* chunksize
;
3560 packbuf
= umem_alloc(packsize
, UMEM_NOFAIL
);
3561 bigbuf
= umem_alloc(bigsize
, UMEM_NOFAIL
);
3564 * free_percent of the time, free a range of bigobj rather than
3567 freeit
= (ztest_random(100) < free_percent
);
3570 * Read the current contents of our objects.
3572 error
= dmu_read(os
, packobj
, packoff
, packsize
, packbuf
,
3574 ASSERT3U(error
, ==, 0);
3575 error
= dmu_read(os
, bigobj
, bigoff
, bigsize
, bigbuf
,
3577 ASSERT3U(error
, ==, 0);
3580 * Get a tx for the mods to both packobj and bigobj.
3582 tx
= dmu_tx_create(os
);
3584 dmu_tx_hold_write(tx
, packobj
, packoff
, packsize
);
3587 dmu_tx_hold_free(tx
, bigobj
, bigoff
, bigsize
);
3589 dmu_tx_hold_write(tx
, bigobj
, bigoff
, bigsize
);
3591 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
3593 umem_free(packbuf
, packsize
);
3594 umem_free(bigbuf
, bigsize
);
3595 umem_free(od
, size
);
3599 dmu_object_set_checksum(os
, bigobj
,
3600 (enum zio_checksum
)ztest_random_dsl_prop(ZFS_PROP_CHECKSUM
), tx
);
3602 dmu_object_set_compress(os
, bigobj
,
3603 (enum zio_compress
)ztest_random_dsl_prop(ZFS_PROP_COMPRESSION
), tx
);
3606 * For each index from n to n + s, verify that the existing bufwad
3607 * in packobj matches the bufwads at the head and tail of the
3608 * corresponding chunk in bigobj. Then update all three bufwads
3609 * with the new values we want to write out.
3611 for (i
= 0; i
< s
; i
++) {
3613 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
3615 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* chunksize
);
3617 bigT
= (bufwad_t
*)((char *)bigH
+ chunksize
) - 1;
3619 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
3620 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
3622 if (pack
->bw_txg
> txg
)
3623 fatal(0, "future leak: got %llx, open txg is %llx",
3626 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
3627 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
3628 pack
->bw_index
, n
, i
);
3630 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
3631 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
3633 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
3634 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
3637 bzero(pack
, sizeof (bufwad_t
));
3639 pack
->bw_index
= n
+ i
;
3641 pack
->bw_data
= 1 + ztest_random(-2ULL);
3648 * We've verified all the old bufwads, and made new ones.
3649 * Now write them out.
3651 dmu_write(os
, packobj
, packoff
, packsize
, packbuf
, tx
);
3654 if (ztest_opts
.zo_verbose
>= 7) {
3655 (void) printf("freeing offset %llx size %llx"
3657 (u_longlong_t
)bigoff
,
3658 (u_longlong_t
)bigsize
,
3661 VERIFY(0 == dmu_free_range(os
, bigobj
, bigoff
, bigsize
, tx
));
3663 if (ztest_opts
.zo_verbose
>= 7) {
3664 (void) printf("writing offset %llx size %llx"
3666 (u_longlong_t
)bigoff
,
3667 (u_longlong_t
)bigsize
,
3670 dmu_write(os
, bigobj
, bigoff
, bigsize
, bigbuf
, tx
);
3676 * Sanity check the stuff we just wrote.
3679 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
3680 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
3682 VERIFY(0 == dmu_read(os
, packobj
, packoff
,
3683 packsize
, packcheck
, DMU_READ_PREFETCH
));
3684 VERIFY(0 == dmu_read(os
, bigobj
, bigoff
,
3685 bigsize
, bigcheck
, DMU_READ_PREFETCH
));
3687 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
3688 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
3690 umem_free(packcheck
, packsize
);
3691 umem_free(bigcheck
, bigsize
);
3694 umem_free(packbuf
, packsize
);
3695 umem_free(bigbuf
, bigsize
);
3696 umem_free(od
, size
);
3700 compare_and_update_pbbufs(uint64_t s
, bufwad_t
*packbuf
, bufwad_t
*bigbuf
,
3701 uint64_t bigsize
, uint64_t n
, uint64_t chunksize
, uint64_t txg
)
3709 * For each index from n to n + s, verify that the existing bufwad
3710 * in packobj matches the bufwads at the head and tail of the
3711 * corresponding chunk in bigobj. Then update all three bufwads
3712 * with the new values we want to write out.
3714 for (i
= 0; i
< s
; i
++) {
3716 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
3718 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* chunksize
);
3720 bigT
= (bufwad_t
*)((char *)bigH
+ chunksize
) - 1;
3722 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
3723 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
3725 if (pack
->bw_txg
> txg
)
3726 fatal(0, "future leak: got %llx, open txg is %llx",
3729 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
3730 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
3731 pack
->bw_index
, n
, i
);
3733 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
3734 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
3736 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
3737 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
3739 pack
->bw_index
= n
+ i
;
3741 pack
->bw_data
= 1 + ztest_random(-2ULL);
3748 #undef OD_ARRAY_SIZE
3749 #define OD_ARRAY_SIZE 2
3752 ztest_dmu_read_write_zcopy(ztest_ds_t
*zd
, uint64_t id
)
3754 objset_t
*os
= zd
->zd_os
;
3761 bufwad_t
*packbuf
, *bigbuf
;
3762 uint64_t packobj
, packoff
, packsize
, bigobj
, bigoff
, bigsize
;
3763 uint64_t blocksize
= ztest_random_blocksize();
3764 uint64_t chunksize
= blocksize
;
3765 uint64_t regions
= 997;
3766 uint64_t stride
= 123456789ULL;
3768 dmu_buf_t
*bonus_db
;
3769 arc_buf_t
**bigbuf_arcbufs
;
3770 dmu_object_info_t doi
;
3772 size
= sizeof(ztest_od_t
) * OD_ARRAY_SIZE
;
3773 od
= umem_alloc(size
, UMEM_NOFAIL
);
3776 * This test uses two objects, packobj and bigobj, that are always
3777 * updated together (i.e. in the same tx) so that their contents are
3778 * in sync and can be compared. Their contents relate to each other
3779 * in a simple way: packobj is a dense array of 'bufwad' structures,
3780 * while bigobj is a sparse array of the same bufwads. Specifically,
3781 * for any index n, there are three bufwads that should be identical:
3783 * packobj, at offset n * sizeof (bufwad_t)
3784 * bigobj, at the head of the nth chunk
3785 * bigobj, at the tail of the nth chunk
3787 * The chunk size is set equal to bigobj block size so that
3788 * dmu_assign_arcbuf() can be tested for object updates.
3792 * Read the directory info. If it's the first time, set things up.
3794 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0);
3795 ztest_od_init(od
+ 1, id
, FTAG
, 1, DMU_OT_UINT64_OTHER
, 0, chunksize
);
3798 if (ztest_object_init(zd
, od
, size
, B_FALSE
) != 0) {
3799 umem_free(od
, size
);
3803 bigobj
= od
[0].od_object
;
3804 packobj
= od
[1].od_object
;
3805 blocksize
= od
[0].od_blocksize
;
3806 chunksize
= blocksize
;
3807 ASSERT(chunksize
== od
[1].od_gen
);
3809 VERIFY(dmu_object_info(os
, bigobj
, &doi
) == 0);
3810 VERIFY(ISP2(doi
.doi_data_block_size
));
3811 VERIFY(chunksize
== doi
.doi_data_block_size
);
3812 VERIFY(chunksize
>= 2 * sizeof (bufwad_t
));
3815 * Pick a random index and compute the offsets into packobj and bigobj.
3817 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
3818 s
= 1 + ztest_random(width
- 1);
3820 packoff
= n
* sizeof (bufwad_t
);
3821 packsize
= s
* sizeof (bufwad_t
);
3823 bigoff
= n
* chunksize
;
3824 bigsize
= s
* chunksize
;
3826 packbuf
= umem_zalloc(packsize
, UMEM_NOFAIL
);
3827 bigbuf
= umem_zalloc(bigsize
, UMEM_NOFAIL
);
3829 VERIFY3U(0, ==, dmu_bonus_hold(os
, bigobj
, FTAG
, &bonus_db
));
3831 bigbuf_arcbufs
= umem_zalloc(2 * s
* sizeof (arc_buf_t
*), UMEM_NOFAIL
);
3834 * Iteration 0 test zcopy for DB_UNCACHED dbufs.
3835 * Iteration 1 test zcopy to already referenced dbufs.
3836 * Iteration 2 test zcopy to dirty dbuf in the same txg.
3837 * Iteration 3 test zcopy to dbuf dirty in previous txg.
3838 * Iteration 4 test zcopy when dbuf is no longer dirty.
3839 * Iteration 5 test zcopy when it can't be done.
3840 * Iteration 6 one more zcopy write.
3842 for (i
= 0; i
< 7; i
++) {
3847 * In iteration 5 (i == 5) use arcbufs
3848 * that don't match bigobj blksz to test
3849 * dmu_assign_arcbuf() when it can't directly
3850 * assign an arcbuf to a dbuf.
3852 for (j
= 0; j
< s
; j
++) {
3855 dmu_request_arcbuf(bonus_db
, chunksize
);
3857 bigbuf_arcbufs
[2 * j
] =
3858 dmu_request_arcbuf(bonus_db
, chunksize
/ 2);
3859 bigbuf_arcbufs
[2 * j
+ 1] =
3860 dmu_request_arcbuf(bonus_db
, chunksize
/ 2);
3865 * Get a tx for the mods to both packobj and bigobj.
3867 tx
= dmu_tx_create(os
);
3869 dmu_tx_hold_write(tx
, packobj
, packoff
, packsize
);
3870 dmu_tx_hold_write(tx
, bigobj
, bigoff
, bigsize
);
3872 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
3874 umem_free(packbuf
, packsize
);
3875 umem_free(bigbuf
, bigsize
);
3876 for (j
= 0; j
< s
; j
++) {
3878 dmu_return_arcbuf(bigbuf_arcbufs
[j
]);
3881 bigbuf_arcbufs
[2 * j
]);
3883 bigbuf_arcbufs
[2 * j
+ 1]);
3886 umem_free(bigbuf_arcbufs
, 2 * s
* sizeof (arc_buf_t
*));
3887 umem_free(od
, size
);
3888 dmu_buf_rele(bonus_db
, FTAG
);
3893 * 50% of the time don't read objects in the 1st iteration to
3894 * test dmu_assign_arcbuf() for the case when there're no
3895 * existing dbufs for the specified offsets.
3897 if (i
!= 0 || ztest_random(2) != 0) {
3898 error
= dmu_read(os
, packobj
, packoff
,
3899 packsize
, packbuf
, DMU_READ_PREFETCH
);
3900 ASSERT3U(error
, ==, 0);
3901 error
= dmu_read(os
, bigobj
, bigoff
, bigsize
,
3902 bigbuf
, DMU_READ_PREFETCH
);
3903 ASSERT3U(error
, ==, 0);
3905 compare_and_update_pbbufs(s
, packbuf
, bigbuf
, bigsize
,
3909 * We've verified all the old bufwads, and made new ones.
3910 * Now write them out.
3912 dmu_write(os
, packobj
, packoff
, packsize
, packbuf
, tx
);
3913 if (ztest_opts
.zo_verbose
>= 7) {
3914 (void) printf("writing offset %llx size %llx"
3916 (u_longlong_t
)bigoff
,
3917 (u_longlong_t
)bigsize
,
3920 for (off
= bigoff
, j
= 0; j
< s
; j
++, off
+= chunksize
) {
3923 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
),
3924 bigbuf_arcbufs
[j
]->b_data
, chunksize
);
3926 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
),
3927 bigbuf_arcbufs
[2 * j
]->b_data
,
3929 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
) +
3931 bigbuf_arcbufs
[2 * j
+ 1]->b_data
,
3936 VERIFY(dmu_buf_hold(os
, bigobj
, off
,
3937 FTAG
, &dbt
, DMU_READ_NO_PREFETCH
) == 0);
3940 dmu_assign_arcbuf(bonus_db
, off
,
3941 bigbuf_arcbufs
[j
], tx
);
3943 dmu_assign_arcbuf(bonus_db
, off
,
3944 bigbuf_arcbufs
[2 * j
], tx
);
3945 dmu_assign_arcbuf(bonus_db
,
3946 off
+ chunksize
/ 2,
3947 bigbuf_arcbufs
[2 * j
+ 1], tx
);
3950 dmu_buf_rele(dbt
, FTAG
);
3956 * Sanity check the stuff we just wrote.
3959 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
3960 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
3962 VERIFY(0 == dmu_read(os
, packobj
, packoff
,
3963 packsize
, packcheck
, DMU_READ_PREFETCH
));
3964 VERIFY(0 == dmu_read(os
, bigobj
, bigoff
,
3965 bigsize
, bigcheck
, DMU_READ_PREFETCH
));
3967 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
3968 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
3970 umem_free(packcheck
, packsize
);
3971 umem_free(bigcheck
, bigsize
);
3974 txg_wait_open(dmu_objset_pool(os
), 0);
3975 } else if (i
== 3) {
3976 txg_wait_synced(dmu_objset_pool(os
), 0);
3980 dmu_buf_rele(bonus_db
, FTAG
);
3981 umem_free(packbuf
, packsize
);
3982 umem_free(bigbuf
, bigsize
);
3983 umem_free(bigbuf_arcbufs
, 2 * s
* sizeof (arc_buf_t
*));
3984 umem_free(od
, size
);
3989 ztest_dmu_write_parallel(ztest_ds_t
*zd
, uint64_t id
)
3993 od
= umem_alloc(sizeof(ztest_od_t
), UMEM_NOFAIL
);
3994 uint64_t offset
= (1ULL << (ztest_random(20) + 43)) +
3995 (ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
3998 * Have multiple threads write to large offsets in an object
3999 * to verify that parallel writes to an object -- even to the
4000 * same blocks within the object -- doesn't cause any trouble.
4002 ztest_od_init(od
, ID_PARALLEL
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0);
4004 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0)
4007 while (ztest_random(10) != 0)
4008 ztest_io(zd
, od
->od_object
, offset
);
4010 umem_free(od
, sizeof(ztest_od_t
));
4014 ztest_dmu_prealloc(ztest_ds_t
*zd
, uint64_t id
)
4017 uint64_t offset
= (1ULL << (ztest_random(4) + SPA_MAXBLOCKSHIFT
)) +
4018 (ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
4019 uint64_t count
= ztest_random(20) + 1;
4020 uint64_t blocksize
= ztest_random_blocksize();
4023 od
= umem_alloc(sizeof(ztest_od_t
), UMEM_NOFAIL
);
4025 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0);
4027 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), !ztest_random(2)) != 0) {
4028 umem_free(od
, sizeof(ztest_od_t
));
4032 if (ztest_truncate(zd
, od
->od_object
, offset
, count
* blocksize
) != 0) {
4033 umem_free(od
, sizeof(ztest_od_t
));
4037 ztest_prealloc(zd
, od
->od_object
, offset
, count
* blocksize
);
4039 data
= umem_zalloc(blocksize
, UMEM_NOFAIL
);
4041 while (ztest_random(count
) != 0) {
4042 uint64_t randoff
= offset
+ (ztest_random(count
) * blocksize
);
4043 if (ztest_write(zd
, od
->od_object
, randoff
, blocksize
,
4046 while (ztest_random(4) != 0)
4047 ztest_io(zd
, od
->od_object
, randoff
);
4050 umem_free(data
, blocksize
);
4051 umem_free(od
, sizeof(ztest_od_t
));
4055 * Verify that zap_{create,destroy,add,remove,update} work as expected.
4057 #define ZTEST_ZAP_MIN_INTS 1
4058 #define ZTEST_ZAP_MAX_INTS 4
4059 #define ZTEST_ZAP_MAX_PROPS 1000
4062 ztest_zap(ztest_ds_t
*zd
, uint64_t id
)
4064 objset_t
*os
= zd
->zd_os
;
4067 uint64_t txg
, last_txg
;
4068 uint64_t value
[ZTEST_ZAP_MAX_INTS
];
4069 uint64_t zl_ints
, zl_intsize
, prop
;
4072 char propname
[100], txgname
[100];
4074 char *hc
[2] = { "s.acl.h", ".s.open.h.hyLZlg" };
4076 od
= umem_alloc(sizeof(ztest_od_t
), UMEM_NOFAIL
);
4077 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_ZAP_OTHER
, 0, 0);
4079 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
),
4080 !ztest_random(2)) != 0)
4083 object
= od
->od_object
;
4086 * Generate a known hash collision, and verify that
4087 * we can lookup and remove both entries.
4089 tx
= dmu_tx_create(os
);
4090 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4091 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4094 for (i
= 0; i
< 2; i
++) {
4096 VERIFY3U(0, ==, zap_add(os
, object
, hc
[i
], sizeof (uint64_t),
4099 for (i
= 0; i
< 2; i
++) {
4100 VERIFY3U(EEXIST
, ==, zap_add(os
, object
, hc
[i
],
4101 sizeof (uint64_t), 1, &value
[i
], tx
));
4103 zap_length(os
, object
, hc
[i
], &zl_intsize
, &zl_ints
));
4104 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4105 ASSERT3U(zl_ints
, ==, 1);
4107 for (i
= 0; i
< 2; i
++) {
4108 VERIFY3U(0, ==, zap_remove(os
, object
, hc
[i
], tx
));
4113 * Generate a buch of random entries.
4115 ints
= MAX(ZTEST_ZAP_MIN_INTS
, object
% ZTEST_ZAP_MAX_INTS
);
4117 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
4118 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
4119 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
4120 bzero(value
, sizeof (value
));
4124 * If these zap entries already exist, validate their contents.
4126 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
4128 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4129 ASSERT3U(zl_ints
, ==, 1);
4131 VERIFY(zap_lookup(os
, object
, txgname
, zl_intsize
,
4132 zl_ints
, &last_txg
) == 0);
4134 VERIFY(zap_length(os
, object
, propname
, &zl_intsize
,
4137 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4138 ASSERT3U(zl_ints
, ==, ints
);
4140 VERIFY(zap_lookup(os
, object
, propname
, zl_intsize
,
4141 zl_ints
, value
) == 0);
4143 for (i
= 0; i
< ints
; i
++) {
4144 ASSERT3U(value
[i
], ==, last_txg
+ object
+ i
);
4147 ASSERT3U(error
, ==, ENOENT
);
4151 * Atomically update two entries in our zap object.
4152 * The first is named txg_%llu, and contains the txg
4153 * in which the property was last updated. The second
4154 * is named prop_%llu, and the nth element of its value
4155 * should be txg + object + n.
4157 tx
= dmu_tx_create(os
);
4158 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4159 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4164 fatal(0, "zap future leak: old %llu new %llu", last_txg
, txg
);
4166 for (i
= 0; i
< ints
; i
++)
4167 value
[i
] = txg
+ object
+ i
;
4169 VERIFY3U(0, ==, zap_update(os
, object
, txgname
, sizeof (uint64_t),
4171 VERIFY3U(0, ==, zap_update(os
, object
, propname
, sizeof (uint64_t),
4177 * Remove a random pair of entries.
4179 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
4180 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
4181 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
4183 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
4185 if (error
== ENOENT
)
4188 ASSERT3U(error
, ==, 0);
4190 tx
= dmu_tx_create(os
);
4191 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4192 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4195 VERIFY3U(0, ==, zap_remove(os
, object
, txgname
, tx
));
4196 VERIFY3U(0, ==, zap_remove(os
, object
, propname
, tx
));
4199 umem_free(od
, sizeof(ztest_od_t
));
4203 * Testcase to test the upgrading of a microzap to fatzap.
4206 ztest_fzap(ztest_ds_t
*zd
, uint64_t id
)
4208 objset_t
*os
= zd
->zd_os
;
4210 uint64_t object
, txg
;
4213 od
= umem_alloc(sizeof(ztest_od_t
), UMEM_NOFAIL
);
4214 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_ZAP_OTHER
, 0, 0);
4216 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
),
4217 !ztest_random(2)) != 0)
4219 object
= od
->od_object
;
4222 * Add entries to this ZAP and make sure it spills over
4223 * and gets upgraded to a fatzap. Also, since we are adding
4224 * 2050 entries we should see ptrtbl growth and leaf-block split.
4226 for (i
= 0; i
< 2050; i
++) {
4227 char name
[MAXNAMELEN
];
4232 (void) snprintf(name
, sizeof (name
), "fzap-%llu-%llu",
4233 (u_longlong_t
)id
, (u_longlong_t
)value
);
4235 tx
= dmu_tx_create(os
);
4236 dmu_tx_hold_zap(tx
, object
, B_TRUE
, name
);
4237 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4240 error
= zap_add(os
, object
, name
, sizeof (uint64_t), 1,
4242 ASSERT(error
== 0 || error
== EEXIST
);
4246 umem_free(od
, sizeof(ztest_od_t
));
4251 ztest_zap_parallel(ztest_ds_t
*zd
, uint64_t id
)
4253 objset_t
*os
= zd
->zd_os
;
4255 uint64_t txg
, object
, count
, wsize
, wc
, zl_wsize
, zl_wc
;
4257 int i
, namelen
, error
;
4258 int micro
= ztest_random(2);
4259 char name
[20], string_value
[20];
4262 od
= umem_alloc(sizeof(ztest_od_t
), UMEM_NOFAIL
);
4263 ztest_od_init(od
, ID_PARALLEL
, FTAG
, micro
, DMU_OT_ZAP_OTHER
, 0, 0);
4265 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
4266 umem_free(od
, sizeof(ztest_od_t
));
4270 object
= od
->od_object
;
4273 * Generate a random name of the form 'xxx.....' where each
4274 * x is a random printable character and the dots are dots.
4275 * There are 94 such characters, and the name length goes from
4276 * 6 to 20, so there are 94^3 * 15 = 12,458,760 possible names.
4278 namelen
= ztest_random(sizeof (name
) - 5) + 5 + 1;
4280 for (i
= 0; i
< 3; i
++)
4281 name
[i
] = '!' + ztest_random('~' - '!' + 1);
4282 for (; i
< namelen
- 1; i
++)
4286 if ((namelen
& 1) || micro
) {
4287 wsize
= sizeof (txg
);
4293 data
= string_value
;
4297 VERIFY(zap_count(os
, object
, &count
) == 0);
4298 ASSERT(count
!= -1ULL);
4301 * Select an operation: length, lookup, add, update, remove.
4303 i
= ztest_random(5);
4306 tx
= dmu_tx_create(os
);
4307 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4308 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4311 bcopy(name
, string_value
, namelen
);
4315 bzero(string_value
, namelen
);
4321 error
= zap_length(os
, object
, name
, &zl_wsize
, &zl_wc
);
4323 ASSERT3U(wsize
, ==, zl_wsize
);
4324 ASSERT3U(wc
, ==, zl_wc
);
4326 ASSERT3U(error
, ==, ENOENT
);
4331 error
= zap_lookup(os
, object
, name
, wsize
, wc
, data
);
4333 if (data
== string_value
&&
4334 bcmp(name
, data
, namelen
) != 0)
4335 fatal(0, "name '%s' != val '%s' len %d",
4336 name
, data
, namelen
);
4338 ASSERT3U(error
, ==, ENOENT
);
4343 error
= zap_add(os
, object
, name
, wsize
, wc
, data
, tx
);
4344 ASSERT(error
== 0 || error
== EEXIST
);
4348 VERIFY(zap_update(os
, object
, name
, wsize
, wc
, data
, tx
) == 0);
4352 error
= zap_remove(os
, object
, name
, tx
);
4353 ASSERT(error
== 0 || error
== ENOENT
);
4360 umem_free(od
, sizeof(ztest_od_t
));
4364 * Commit callback data.
4366 typedef struct ztest_cb_data
{
4367 list_node_t zcd_node
;
4369 int zcd_expected_err
;
4370 boolean_t zcd_added
;
4371 boolean_t zcd_called
;
4375 /* This is the actual commit callback function */
4377 ztest_commit_callback(void *arg
, int error
)
4379 ztest_cb_data_t
*data
= arg
;
4380 uint64_t synced_txg
;
4382 VERIFY(data
!= NULL
);
4383 VERIFY3S(data
->zcd_expected_err
, ==, error
);
4384 VERIFY(!data
->zcd_called
);
4386 synced_txg
= spa_last_synced_txg(data
->zcd_spa
);
4387 if (data
->zcd_txg
> synced_txg
)
4388 fatal(0, "commit callback of txg %" PRIu64
" called prematurely"
4389 ", last synced txg = %" PRIu64
"\n", data
->zcd_txg
,
4392 data
->zcd_called
= B_TRUE
;
4394 if (error
== ECANCELED
) {
4395 ASSERT3U(data
->zcd_txg
, ==, 0);
4396 ASSERT(!data
->zcd_added
);
4399 * The private callback data should be destroyed here, but
4400 * since we are going to check the zcd_called field after
4401 * dmu_tx_abort(), we will destroy it there.
4406 ASSERT(data
->zcd_added
);
4407 ASSERT3U(data
->zcd_txg
, !=, 0);
4409 (void) mutex_enter(&zcl
.zcl_callbacks_lock
);
4411 /* See if this cb was called more quickly */
4412 if ((synced_txg
- data
->zcd_txg
) < zc_min_txg_delay
)
4413 zc_min_txg_delay
= synced_txg
- data
->zcd_txg
;
4415 /* Remove our callback from the list */
4416 list_remove(&zcl
.zcl_callbacks
, data
);
4418 (void) mutex_exit(&zcl
.zcl_callbacks_lock
);
4420 umem_free(data
, sizeof (ztest_cb_data_t
));
4423 /* Allocate and initialize callback data structure */
4424 static ztest_cb_data_t
*
4425 ztest_create_cb_data(objset_t
*os
, uint64_t txg
)
4427 ztest_cb_data_t
*cb_data
;
4429 cb_data
= umem_zalloc(sizeof (ztest_cb_data_t
), UMEM_NOFAIL
);
4431 cb_data
->zcd_txg
= txg
;
4432 cb_data
->zcd_spa
= dmu_objset_spa(os
);
4433 list_link_init(&cb_data
->zcd_node
);
4439 * Commit callback test.
4442 ztest_dmu_commit_callbacks(ztest_ds_t
*zd
, uint64_t id
)
4444 objset_t
*os
= zd
->zd_os
;
4447 ztest_cb_data_t
*cb_data
[3], *tmp_cb
;
4448 uint64_t old_txg
, txg
;
4451 od
= umem_alloc(sizeof(ztest_od_t
), UMEM_NOFAIL
);
4452 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0);
4454 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
4455 umem_free(od
, sizeof(ztest_od_t
));
4459 tx
= dmu_tx_create(os
);
4461 cb_data
[0] = ztest_create_cb_data(os
, 0);
4462 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[0]);
4464 dmu_tx_hold_write(tx
, od
->od_object
, 0, sizeof (uint64_t));
4466 /* Every once in a while, abort the transaction on purpose */
4467 if (ztest_random(100) == 0)
4471 error
= dmu_tx_assign(tx
, TXG_NOWAIT
);
4473 txg
= error
? 0 : dmu_tx_get_txg(tx
);
4475 cb_data
[0]->zcd_txg
= txg
;
4476 cb_data
[1] = ztest_create_cb_data(os
, txg
);
4477 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[1]);
4481 * It's not a strict requirement to call the registered
4482 * callbacks from inside dmu_tx_abort(), but that's what
4483 * it's supposed to happen in the current implementation
4484 * so we will check for that.
4486 for (i
= 0; i
< 2; i
++) {
4487 cb_data
[i
]->zcd_expected_err
= ECANCELED
;
4488 VERIFY(!cb_data
[i
]->zcd_called
);
4493 for (i
= 0; i
< 2; i
++) {
4494 VERIFY(cb_data
[i
]->zcd_called
);
4495 umem_free(cb_data
[i
], sizeof (ztest_cb_data_t
));
4498 umem_free(od
, sizeof(ztest_od_t
));
4502 cb_data
[2] = ztest_create_cb_data(os
, txg
);
4503 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[2]);
4506 * Read existing data to make sure there isn't a future leak.
4508 VERIFY(0 == dmu_read(os
, od
->od_object
, 0, sizeof (uint64_t),
4509 &old_txg
, DMU_READ_PREFETCH
));
4512 fatal(0, "future leak: got %" PRIu64
", open txg is %" PRIu64
,
4515 dmu_write(os
, od
->od_object
, 0, sizeof (uint64_t), &txg
, tx
);
4517 (void) mutex_enter(&zcl
.zcl_callbacks_lock
);
4520 * Since commit callbacks don't have any ordering requirement and since
4521 * it is theoretically possible for a commit callback to be called
4522 * after an arbitrary amount of time has elapsed since its txg has been
4523 * synced, it is difficult to reliably determine whether a commit
4524 * callback hasn't been called due to high load or due to a flawed
4527 * In practice, we will assume that if after a certain number of txgs a
4528 * commit callback hasn't been called, then most likely there's an
4529 * implementation bug..
4531 tmp_cb
= list_head(&zcl
.zcl_callbacks
);
4532 if (tmp_cb
!= NULL
&&
4533 tmp_cb
->zcd_txg
+ ZTEST_COMMIT_CB_THRESH
< txg
) {
4534 fatal(0, "Commit callback threshold exceeded, oldest txg: %"
4535 PRIu64
", open txg: %" PRIu64
"\n", tmp_cb
->zcd_txg
, txg
);
4539 * Let's find the place to insert our callbacks.
4541 * Even though the list is ordered by txg, it is possible for the
4542 * insertion point to not be the end because our txg may already be
4543 * quiescing at this point and other callbacks in the open txg
4544 * (from other objsets) may have sneaked in.
4546 tmp_cb
= list_tail(&zcl
.zcl_callbacks
);
4547 while (tmp_cb
!= NULL
&& tmp_cb
->zcd_txg
> txg
)
4548 tmp_cb
= list_prev(&zcl
.zcl_callbacks
, tmp_cb
);
4550 /* Add the 3 callbacks to the list */
4551 for (i
= 0; i
< 3; i
++) {
4553 list_insert_head(&zcl
.zcl_callbacks
, cb_data
[i
]);
4555 list_insert_after(&zcl
.zcl_callbacks
, tmp_cb
,
4558 cb_data
[i
]->zcd_added
= B_TRUE
;
4559 VERIFY(!cb_data
[i
]->zcd_called
);
4561 tmp_cb
= cb_data
[i
];
4566 (void) mutex_exit(&zcl
.zcl_callbacks_lock
);
4570 umem_free(od
, sizeof(ztest_od_t
));
4575 ztest_dsl_prop_get_set(ztest_ds_t
*zd
, uint64_t id
)
4577 zfs_prop_t proplist
[] = {
4579 ZFS_PROP_COMPRESSION
,
4585 (void) rw_enter(&ztest_name_lock
, RW_READER
);
4587 for (p
= 0; p
< sizeof (proplist
) / sizeof (proplist
[0]); p
++)
4588 (void) ztest_dsl_prop_set_uint64(zd
->zd_name
, proplist
[p
],
4589 ztest_random_dsl_prop(proplist
[p
]), (int)ztest_random(2));
4591 (void) rw_exit(&ztest_name_lock
);
4596 ztest_spa_prop_get_set(ztest_ds_t
*zd
, uint64_t id
)
4598 nvlist_t
*props
= NULL
;
4600 (void) rw_enter(&ztest_name_lock
, RW_READER
);
4602 (void) ztest_spa_prop_set_uint64(ZPOOL_PROP_DEDUPDITTO
,
4603 ZIO_DEDUPDITTO_MIN
+ ztest_random(ZIO_DEDUPDITTO_MIN
));
4605 VERIFY3U(spa_prop_get(ztest_spa
, &props
), ==, 0);
4607 if (ztest_opts
.zo_verbose
>= 6)
4608 dump_nvlist(props
, 4);
4612 (void) rw_exit(&ztest_name_lock
);
4616 * Test snapshot hold/release and deferred destroy.
4619 ztest_dmu_snapshot_hold(ztest_ds_t
*zd
, uint64_t id
)
4622 objset_t
*os
= zd
->zd_os
;
4626 char clonename
[100];
4628 char osname
[MAXNAMELEN
];
4630 (void) rw_enter(&ztest_name_lock
, RW_READER
);
4632 dmu_objset_name(os
, osname
);
4634 (void) snprintf(snapname
, 100, "sh1_%llu", (u_longlong_t
)id
);
4635 (void) snprintf(fullname
, 100, "%s@%s", osname
, snapname
);
4636 (void) snprintf(clonename
, 100, "%s/ch1_%llu",osname
,(u_longlong_t
)id
);
4637 (void) snprintf(tag
, 100, "tag_%llu", (u_longlong_t
)id
);
4640 * Clean up from any previous run.
4642 (void) dmu_objset_destroy(clonename
, B_FALSE
);
4643 (void) dsl_dataset_user_release(osname
, snapname
, tag
, B_FALSE
);
4644 (void) dmu_objset_destroy(fullname
, B_FALSE
);
4647 * Create snapshot, clone it, mark snap for deferred destroy,
4648 * destroy clone, verify snap was also destroyed.
4650 error
= dmu_objset_snapshot(osname
, snapname
, NULL
, NULL
, FALSE
,
4653 if (error
== ENOSPC
) {
4654 ztest_record_enospc("dmu_objset_snapshot");
4657 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname
, error
);
4660 error
= dmu_objset_hold(fullname
, FTAG
, &origin
);
4662 fatal(0, "dmu_objset_hold(%s) = %d", fullname
, error
);
4664 error
= dmu_objset_clone(clonename
, dmu_objset_ds(origin
), 0);
4665 dmu_objset_rele(origin
, FTAG
);
4667 if (error
== ENOSPC
) {
4668 ztest_record_enospc("dmu_objset_clone");
4671 fatal(0, "dmu_objset_clone(%s) = %d", clonename
, error
);
4674 error
= dmu_objset_destroy(fullname
, B_TRUE
);
4676 fatal(0, "dmu_objset_destroy(%s, B_TRUE) = %d",
4680 error
= dmu_objset_destroy(clonename
, B_FALSE
);
4682 fatal(0, "dmu_objset_destroy(%s) = %d", clonename
, error
);
4684 error
= dmu_objset_hold(fullname
, FTAG
, &origin
);
4685 if (error
!= ENOENT
)
4686 fatal(0, "dmu_objset_hold(%s) = %d", fullname
, error
);
4689 * Create snapshot, add temporary hold, verify that we can't
4690 * destroy a held snapshot, mark for deferred destroy,
4691 * release hold, verify snapshot was destroyed.
4693 error
= dmu_objset_snapshot(osname
, snapname
, NULL
, NULL
, FALSE
,
4696 if (error
== ENOSPC
) {
4697 ztest_record_enospc("dmu_objset_snapshot");
4700 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname
, error
);
4703 error
= dsl_dataset_user_hold(osname
, snapname
, tag
, B_FALSE
,
4706 fatal(0, "dsl_dataset_user_hold(%s)", fullname
, tag
);
4708 error
= dmu_objset_destroy(fullname
, B_FALSE
);
4709 if (error
!= EBUSY
) {
4710 fatal(0, "dmu_objset_destroy(%s, B_FALSE) = %d",
4714 error
= dmu_objset_destroy(fullname
, B_TRUE
);
4716 fatal(0, "dmu_objset_destroy(%s, B_TRUE) = %d",
4720 error
= dsl_dataset_user_release(osname
, snapname
, tag
, B_FALSE
);
4722 fatal(0, "dsl_dataset_user_release(%s)", fullname
, tag
);
4724 VERIFY(dmu_objset_hold(fullname
, FTAG
, &origin
) == ENOENT
);
4727 (void) rw_exit(&ztest_name_lock
);
4731 * Inject random faults into the on-disk data.
4735 ztest_fault_inject(ztest_ds_t
*zd
, uint64_t id
)
4737 ztest_shared_t
*zs
= ztest_shared
;
4738 spa_t
*spa
= ztest_spa
;
4742 uint64_t bad
= 0x1990c0ffeedecadeull
;
4747 int bshift
= SPA_MAXBLOCKSHIFT
+ 2; /* don't scrog all labels */
4753 boolean_t islog
= B_FALSE
;
4755 path0
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
4756 pathrand
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
4758 mutex_enter(&ztest_vdev_lock
);
4759 maxfaults
= MAXFAULTS();
4760 leaves
= MAX(zs
->zs_mirrors
, 1) * ztest_opts
.zo_raidz
;
4761 mirror_save
= zs
->zs_mirrors
;
4762 mutex_exit(&ztest_vdev_lock
);
4764 ASSERT(leaves
>= 1);
4767 * We need SCL_STATE here because we're going to look at vd0->vdev_tsd.
4769 spa_config_enter(spa
, SCL_STATE
, FTAG
, RW_READER
);
4771 if (ztest_random(2) == 0) {
4773 * Inject errors on a normal data device or slog device.
4775 top
= ztest_random_vdev_top(spa
, B_TRUE
);
4776 leaf
= ztest_random(leaves
) + zs
->zs_splits
;
4779 * Generate paths to the first leaf in this top-level vdev,
4780 * and to the random leaf we selected. We'll induce transient
4781 * write failures and random online/offline activity on leaf 0,
4782 * and we'll write random garbage to the randomly chosen leaf.
4784 (void) snprintf(path0
, MAXPATHLEN
, ztest_dev_template
,
4785 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
4786 top
* leaves
+ zs
->zs_splits
);
4787 (void) snprintf(pathrand
, MAXPATHLEN
, ztest_dev_template
,
4788 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
4789 top
* leaves
+ leaf
);
4791 vd0
= vdev_lookup_by_path(spa
->spa_root_vdev
, path0
);
4792 if (vd0
!= NULL
&& vd0
->vdev_top
->vdev_islog
)
4795 if (vd0
!= NULL
&& maxfaults
!= 1) {
4797 * Make vd0 explicitly claim to be unreadable,
4798 * or unwriteable, or reach behind its back
4799 * and close the underlying fd. We can do this if
4800 * maxfaults == 0 because we'll fail and reexecute,
4801 * and we can do it if maxfaults >= 2 because we'll
4802 * have enough redundancy. If maxfaults == 1, the
4803 * combination of this with injection of random data
4804 * corruption below exceeds the pool's fault tolerance.
4806 vdev_file_t
*vf
= vd0
->vdev_tsd
;
4808 if (vf
!= NULL
&& ztest_random(3) == 0) {
4809 (void) close(vf
->vf_vnode
->v_fd
);
4810 vf
->vf_vnode
->v_fd
= -1;
4811 } else if (ztest_random(2) == 0) {
4812 vd0
->vdev_cant_read
= B_TRUE
;
4814 vd0
->vdev_cant_write
= B_TRUE
;
4816 guid0
= vd0
->vdev_guid
;
4820 * Inject errors on an l2cache device.
4822 spa_aux_vdev_t
*sav
= &spa
->spa_l2cache
;
4824 if (sav
->sav_count
== 0) {
4825 spa_config_exit(spa
, SCL_STATE
, FTAG
);
4828 vd0
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)];
4829 guid0
= vd0
->vdev_guid
;
4830 (void) strcpy(path0
, vd0
->vdev_path
);
4831 (void) strcpy(pathrand
, vd0
->vdev_path
);
4835 maxfaults
= INT_MAX
; /* no limit on cache devices */
4838 spa_config_exit(spa
, SCL_STATE
, FTAG
);
4841 * If we can tolerate two or more faults, or we're dealing
4842 * with a slog, randomly online/offline vd0.
4844 if ((maxfaults
>= 2 || islog
) && guid0
!= 0) {
4845 if (ztest_random(10) < 6) {
4846 int flags
= (ztest_random(2) == 0 ?
4847 ZFS_OFFLINE_TEMPORARY
: 0);
4850 * We have to grab the zs_name_lock as writer to
4851 * prevent a race between offlining a slog and
4852 * destroying a dataset. Offlining the slog will
4853 * grab a reference on the dataset which may cause
4854 * dmu_objset_destroy() to fail with EBUSY thus
4855 * leaving the dataset in an inconsistent state.
4858 (void) rw_enter(&ztest_name_lock
,
4861 VERIFY(vdev_offline(spa
, guid0
, flags
) != EBUSY
);
4864 (void) rw_exit(&ztest_name_lock
);
4866 (void) vdev_online(spa
, guid0
, 0, NULL
);
4874 * We have at least single-fault tolerance, so inject data corruption.
4876 fd
= open(pathrand
, O_RDWR
);
4878 if (fd
== -1) /* we hit a gap in the device namespace */
4881 fsize
= lseek(fd
, 0, SEEK_END
);
4883 while (--iters
!= 0) {
4884 offset
= ztest_random(fsize
/ (leaves
<< bshift
)) *
4885 (leaves
<< bshift
) + (leaf
<< bshift
) +
4886 (ztest_random(1ULL << (bshift
- 1)) & -8ULL);
4888 if (offset
>= fsize
)
4891 mutex_enter(&ztest_vdev_lock
);
4892 if (mirror_save
!= zs
->zs_mirrors
) {
4893 mutex_exit(&ztest_vdev_lock
);
4898 if (pwrite(fd
, &bad
, sizeof (bad
), offset
) != sizeof (bad
))
4899 fatal(1, "can't inject bad word at 0x%llx in %s",
4902 mutex_exit(&ztest_vdev_lock
);
4904 if (ztest_opts
.zo_verbose
>= 7)
4905 (void) printf("injected bad word into %s,"
4906 " offset 0x%llx\n", pathrand
, (u_longlong_t
)offset
);
4911 umem_free(path0
, MAXPATHLEN
);
4912 umem_free(pathrand
, MAXPATHLEN
);
4916 * Verify that DDT repair works as expected.
4919 ztest_ddt_repair(ztest_ds_t
*zd
, uint64_t id
)
4921 ztest_shared_t
*zs
= ztest_shared
;
4922 spa_t
*spa
= ztest_spa
;
4923 objset_t
*os
= zd
->zd_os
;
4925 uint64_t object
, blocksize
, txg
, pattern
, psize
;
4926 enum zio_checksum checksum
= spa_dedup_checksum(spa
);
4931 int copies
= 2 * ZIO_DEDUPDITTO_MIN
;
4934 blocksize
= ztest_random_blocksize();
4935 blocksize
= MIN(blocksize
, 2048); /* because we write so many */
4937 od
= umem_alloc(sizeof(ztest_od_t
), UMEM_NOFAIL
);
4938 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0);
4940 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
4941 umem_free(od
, sizeof(ztest_od_t
));
4946 * Take the name lock as writer to prevent anyone else from changing
4947 * the pool and dataset properies we need to maintain during this test.
4949 (void) rw_enter(&ztest_name_lock
, RW_WRITER
);
4951 if (ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_DEDUP
, checksum
,
4953 ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_COPIES
, 1,
4955 (void) rw_exit(&ztest_name_lock
);
4956 umem_free(od
, sizeof(ztest_od_t
));
4960 object
= od
[0].od_object
;
4961 blocksize
= od
[0].od_blocksize
;
4962 pattern
= zs
->zs_guid
^ dmu_objset_fsid_guid(os
);
4964 ASSERT(object
!= 0);
4966 tx
= dmu_tx_create(os
);
4967 dmu_tx_hold_write(tx
, object
, 0, copies
* blocksize
);
4968 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
4970 (void) rw_exit(&ztest_name_lock
);
4971 umem_free(od
, sizeof(ztest_od_t
));
4976 * Write all the copies of our block.
4978 for (i
= 0; i
< copies
; i
++) {
4979 uint64_t offset
= i
* blocksize
;
4980 VERIFY(dmu_buf_hold(os
, object
, offset
, FTAG
, &db
,
4981 DMU_READ_NO_PREFETCH
) == 0);
4982 ASSERT(db
->db_offset
== offset
);
4983 ASSERT(db
->db_size
== blocksize
);
4984 ASSERT(ztest_pattern_match(db
->db_data
, db
->db_size
, pattern
) ||
4985 ztest_pattern_match(db
->db_data
, db
->db_size
, 0ULL));
4986 dmu_buf_will_fill(db
, tx
);
4987 ztest_pattern_set(db
->db_data
, db
->db_size
, pattern
);
4988 dmu_buf_rele(db
, FTAG
);
4992 txg_wait_synced(spa_get_dsl(spa
), txg
);
4995 * Find out what block we got.
4997 VERIFY(dmu_buf_hold(os
, object
, 0, FTAG
, &db
,
4998 DMU_READ_NO_PREFETCH
) == 0);
4999 blk
= *((dmu_buf_impl_t
*)db
)->db_blkptr
;
5000 dmu_buf_rele(db
, FTAG
);
5003 * Damage the block. Dedup-ditto will save us when we read it later.
5005 psize
= BP_GET_PSIZE(&blk
);
5006 buf
= zio_buf_alloc(psize
);
5007 ztest_pattern_set(buf
, psize
, ~pattern
);
5009 (void) zio_wait(zio_rewrite(NULL
, spa
, 0, &blk
,
5010 buf
, psize
, NULL
, NULL
, ZIO_PRIORITY_SYNC_WRITE
,
5011 ZIO_FLAG_CANFAIL
| ZIO_FLAG_INDUCE_DAMAGE
, NULL
));
5013 zio_buf_free(buf
, psize
);
5015 (void) rw_exit(&ztest_name_lock
);
5016 umem_free(od
, sizeof(ztest_od_t
));
5024 ztest_scrub(ztest_ds_t
*zd
, uint64_t id
)
5026 spa_t
*spa
= ztest_spa
;
5028 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5029 (void) poll(NULL
, 0, 100); /* wait a moment, then force a restart */
5030 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5034 * Change the guid for the pool.
5038 ztest_reguid(ztest_ds_t
*zd
, uint64_t id
)
5040 spa_t
*spa
= ztest_spa
;
5041 uint64_t orig
, load
;
5043 orig
= spa_guid(spa
);
5044 load
= spa_load_guid(spa
);
5045 if (spa_change_guid(spa
) != 0)
5048 if (ztest_opts
.zo_verbose
>= 3) {
5049 (void) printf("Changed guid old %llu -> %llu\n",
5050 (u_longlong_t
)orig
, (u_longlong_t
)spa_guid(spa
));
5053 VERIFY3U(orig
, !=, spa_guid(spa
));
5054 VERIFY3U(load
, ==, spa_load_guid(spa
));
5058 * Rename the pool to a different name and then rename it back.
5062 ztest_spa_rename(ztest_ds_t
*zd
, uint64_t id
)
5064 char *oldname
, *newname
;
5067 (void) rw_enter(&ztest_name_lock
, RW_WRITER
);
5069 oldname
= ztest_opts
.zo_pool
;
5070 newname
= umem_alloc(strlen(oldname
) + 5, UMEM_NOFAIL
);
5071 (void) strcpy(newname
, oldname
);
5072 (void) strcat(newname
, "_tmp");
5077 VERIFY3U(0, ==, spa_rename(oldname
, newname
));
5080 * Try to open it under the old name, which shouldn't exist
5082 VERIFY3U(ENOENT
, ==, spa_open(oldname
, &spa
, FTAG
));
5085 * Open it under the new name and make sure it's still the same spa_t.
5087 VERIFY3U(0, ==, spa_open(newname
, &spa
, FTAG
));
5089 ASSERT(spa
== ztest_spa
);
5090 spa_close(spa
, FTAG
);
5093 * Rename it back to the original
5095 VERIFY3U(0, ==, spa_rename(newname
, oldname
));
5098 * Make sure it can still be opened
5100 VERIFY3U(0, ==, spa_open(oldname
, &spa
, FTAG
));
5102 ASSERT(spa
== ztest_spa
);
5103 spa_close(spa
, FTAG
);
5105 umem_free(newname
, strlen(newname
) + 1);
5107 (void) rw_exit(&ztest_name_lock
);
5111 * Verify pool integrity by running zdb.
5114 ztest_run_zdb(char *pool
)
5122 bin
= umem_alloc(MAXPATHLEN
+ MAXNAMELEN
+ 20, UMEM_NOFAIL
);
5123 zdb
= umem_alloc(MAXPATHLEN
+ MAXNAMELEN
+ 20, UMEM_NOFAIL
);
5124 zbuf
= umem_alloc(1024, UMEM_NOFAIL
);
5126 VERIFY(realpath(getexecname(), bin
) != NULL
);
5127 if (strncmp(bin
, "/usr/sbin/ztest", 15) == 0) {
5128 strcpy(bin
, "/usr/sbin/zdb"); /* Installed */
5129 } else if (strncmp(bin
, "/sbin/ztest", 11) == 0) {
5130 strcpy(bin
, "/sbin/zdb"); /* Installed */
5132 strstr(bin
, "/ztest/")[0] = '\0'; /* In-tree */
5133 strcat(bin
, "/zdb/zdb");
5137 "%s -bcc%s%s -U %s %s",
5139 ztest_opts
.zo_verbose
>= 3 ? "s" : "",
5140 ztest_opts
.zo_verbose
>= 4 ? "v" : "",
5144 if (ztest_opts
.zo_verbose
>= 5)
5145 (void) printf("Executing %s\n", strstr(zdb
, "zdb "));
5147 fp
= popen(zdb
, "r");
5149 while (fgets(zbuf
, 1024, fp
) != NULL
)
5150 if (ztest_opts
.zo_verbose
>= 3)
5151 (void) printf("%s", zbuf
);
5153 status
= pclose(fp
);
5158 ztest_dump_core
= 0;
5159 if (WIFEXITED(status
))
5160 fatal(0, "'%s' exit code %d", zdb
, WEXITSTATUS(status
));
5162 fatal(0, "'%s' died with signal %d", zdb
, WTERMSIG(status
));
5164 umem_free(bin
, MAXPATHLEN
+ MAXNAMELEN
+ 20);
5165 umem_free(zdb
, MAXPATHLEN
+ MAXNAMELEN
+ 20);
5166 umem_free(zbuf
, 1024);
5170 ztest_walk_pool_directory(char *header
)
5174 if (ztest_opts
.zo_verbose
>= 6)
5175 (void) printf("%s\n", header
);
5177 mutex_enter(&spa_namespace_lock
);
5178 while ((spa
= spa_next(spa
)) != NULL
)
5179 if (ztest_opts
.zo_verbose
>= 6)
5180 (void) printf("\t%s\n", spa_name(spa
));
5181 mutex_exit(&spa_namespace_lock
);
5185 ztest_spa_import_export(char *oldname
, char *newname
)
5187 nvlist_t
*config
, *newconfig
;
5191 if (ztest_opts
.zo_verbose
>= 4) {
5192 (void) printf("import/export: old = %s, new = %s\n",
5197 * Clean up from previous runs.
5199 (void) spa_destroy(newname
);
5202 * Get the pool's configuration and guid.
5204 VERIFY3U(0, ==, spa_open(oldname
, &spa
, FTAG
));
5207 * Kick off a scrub to tickle scrub/export races.
5209 if (ztest_random(2) == 0)
5210 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5212 pool_guid
= spa_guid(spa
);
5213 spa_close(spa
, FTAG
);
5215 ztest_walk_pool_directory("pools before export");
5220 VERIFY3U(0, ==, spa_export(oldname
, &config
, B_FALSE
, B_FALSE
));
5222 ztest_walk_pool_directory("pools after export");
5227 newconfig
= spa_tryimport(config
);
5228 ASSERT(newconfig
!= NULL
);
5229 nvlist_free(newconfig
);
5232 * Import it under the new name.
5234 VERIFY3U(0, ==, spa_import(newname
, config
, NULL
, 0));
5236 ztest_walk_pool_directory("pools after import");
5239 * Try to import it again -- should fail with EEXIST.
5241 VERIFY3U(EEXIST
, ==, spa_import(newname
, config
, NULL
, 0));
5244 * Try to import it under a different name -- should fail with EEXIST.
5246 VERIFY3U(EEXIST
, ==, spa_import(oldname
, config
, NULL
, 0));
5249 * Verify that the pool is no longer visible under the old name.
5251 VERIFY3U(ENOENT
, ==, spa_open(oldname
, &spa
, FTAG
));
5254 * Verify that we can open and close the pool using the new name.
5256 VERIFY3U(0, ==, spa_open(newname
, &spa
, FTAG
));
5257 ASSERT(pool_guid
== spa_guid(spa
));
5258 spa_close(spa
, FTAG
);
5260 nvlist_free(config
);
5264 ztest_resume(spa_t
*spa
)
5266 if (spa_suspended(spa
) && ztest_opts
.zo_verbose
>= 6)
5267 (void) printf("resuming from suspended state\n");
5268 spa_vdev_state_enter(spa
, SCL_NONE
);
5269 vdev_clear(spa
, NULL
);
5270 (void) spa_vdev_state_exit(spa
, NULL
, 0);
5271 (void) zio_resume(spa
);
5275 ztest_resume_thread(void *arg
)
5279 while (!ztest_exiting
) {
5280 if (spa_suspended(spa
))
5282 (void) poll(NULL
, 0, 100);
5293 ztest_deadman_alarm(int sig
)
5295 fatal(0, "failed to complete within %d seconds of deadline", GRACE
);
5299 ztest_execute(int test
, ztest_info_t
*zi
, uint64_t id
)
5301 ztest_ds_t
*zd
= &ztest_ds
[id
% ztest_opts
.zo_datasets
];
5302 ztest_shared_callstate_t
*zc
= ZTEST_GET_SHARED_CALLSTATE(test
);
5303 hrtime_t functime
= gethrtime();
5306 for (i
= 0; i
< zi
->zi_iters
; i
++)
5307 zi
->zi_func(zd
, id
);
5309 functime
= gethrtime() - functime
;
5311 atomic_add_64(&zc
->zc_count
, 1);
5312 atomic_add_64(&zc
->zc_time
, functime
);
5314 if (ztest_opts
.zo_verbose
>= 4) {
5316 (void) dladdr((void *)zi
->zi_func
, &dli
);
5317 (void) printf("%6.2f sec in %s\n",
5318 (double)functime
/ NANOSEC
, dli
.dli_sname
);
5323 ztest_thread(void *arg
)
5326 uint64_t id
= (uintptr_t)arg
;
5327 ztest_shared_t
*zs
= ztest_shared
;
5331 ztest_shared_callstate_t
*zc
;
5333 while ((now
= gethrtime()) < zs
->zs_thread_stop
) {
5335 * See if it's time to force a crash.
5337 if (now
> zs
->zs_thread_kill
)
5341 * If we're getting ENOSPC with some regularity, stop.
5343 if (zs
->zs_enospc_count
> 10)
5347 * Pick a random function to execute.
5349 rand
= ztest_random(ZTEST_FUNCS
);
5350 zi
= &ztest_info
[rand
];
5351 zc
= ZTEST_GET_SHARED_CALLSTATE(rand
);
5352 call_next
= zc
->zc_next
;
5354 if (now
>= call_next
&&
5355 atomic_cas_64(&zc
->zc_next
, call_next
, call_next
+
5356 ztest_random(2 * zi
->zi_interval
[0] + 1)) == call_next
) {
5357 ztest_execute(rand
, zi
, id
);
5367 ztest_dataset_name(char *dsname
, char *pool
, int d
)
5369 (void) snprintf(dsname
, MAXNAMELEN
, "%s/ds_%d", pool
, d
);
5373 ztest_dataset_destroy(int d
)
5375 char name
[MAXNAMELEN
];
5378 ztest_dataset_name(name
, ztest_opts
.zo_pool
, d
);
5380 if (ztest_opts
.zo_verbose
>= 3)
5381 (void) printf("Destroying %s to free up space\n", name
);
5384 * Cleanup any non-standard clones and snapshots. In general,
5385 * ztest thread t operates on dataset (t % zopt_datasets),
5386 * so there may be more than one thing to clean up.
5388 for (t
= d
; t
< ztest_opts
.zo_threads
;
5389 t
+= ztest_opts
.zo_datasets
)
5390 ztest_dsl_dataset_cleanup(name
, t
);
5392 (void) dmu_objset_find(name
, ztest_objset_destroy_cb
, NULL
,
5393 DS_FIND_SNAPSHOTS
| DS_FIND_CHILDREN
);
5397 ztest_dataset_dirobj_verify(ztest_ds_t
*zd
)
5399 uint64_t usedobjs
, dirobjs
, scratch
;
5402 * ZTEST_DIROBJ is the object directory for the entire dataset.
5403 * Therefore, the number of objects in use should equal the
5404 * number of ZTEST_DIROBJ entries, +1 for ZTEST_DIROBJ itself.
5405 * If not, we have an object leak.
5407 * Note that we can only check this in ztest_dataset_open(),
5408 * when the open-context and syncing-context values agree.
5409 * That's because zap_count() returns the open-context value,
5410 * while dmu_objset_space() returns the rootbp fill count.
5412 VERIFY3U(0, ==, zap_count(zd
->zd_os
, ZTEST_DIROBJ
, &dirobjs
));
5413 dmu_objset_space(zd
->zd_os
, &scratch
, &scratch
, &usedobjs
, &scratch
);
5414 ASSERT3U(dirobjs
+ 1, ==, usedobjs
);
5418 ztest_dataset_open(int d
)
5420 ztest_ds_t
*zd
= &ztest_ds
[d
];
5421 uint64_t committed_seq
= ZTEST_GET_SHARED_DS(d
)->zd_seq
;
5424 char name
[MAXNAMELEN
];
5427 ztest_dataset_name(name
, ztest_opts
.zo_pool
, d
);
5429 (void) rw_enter(&ztest_name_lock
, RW_READER
);
5431 error
= ztest_dataset_create(name
);
5432 if (error
== ENOSPC
) {
5433 (void) rw_exit(&ztest_name_lock
);
5434 ztest_record_enospc(FTAG
);
5437 ASSERT(error
== 0 || error
== EEXIST
);
5439 VERIFY3U(dmu_objset_hold(name
, zd
, &os
), ==, 0);
5440 (void) rw_exit(&ztest_name_lock
);
5442 ztest_zd_init(zd
, ZTEST_GET_SHARED_DS(d
), os
);
5444 zilog
= zd
->zd_zilog
;
5446 if (zilog
->zl_header
->zh_claim_lr_seq
!= 0 &&
5447 zilog
->zl_header
->zh_claim_lr_seq
< committed_seq
)
5448 fatal(0, "missing log records: claimed %llu < committed %llu",
5449 zilog
->zl_header
->zh_claim_lr_seq
, committed_seq
);
5451 ztest_dataset_dirobj_verify(zd
);
5453 zil_replay(os
, zd
, ztest_replay_vector
);
5455 ztest_dataset_dirobj_verify(zd
);
5457 if (ztest_opts
.zo_verbose
>= 6)
5458 (void) printf("%s replay %llu blocks, %llu records, seq %llu\n",
5460 (u_longlong_t
)zilog
->zl_parse_blk_count
,
5461 (u_longlong_t
)zilog
->zl_parse_lr_count
,
5462 (u_longlong_t
)zilog
->zl_replaying_seq
);
5464 zilog
= zil_open(os
, ztest_get_data
);
5466 if (zilog
->zl_replaying_seq
!= 0 &&
5467 zilog
->zl_replaying_seq
< committed_seq
)
5468 fatal(0, "missing log records: replayed %llu < committed %llu",
5469 zilog
->zl_replaying_seq
, committed_seq
);
5475 ztest_dataset_close(int d
)
5477 ztest_ds_t
*zd
= &ztest_ds
[d
];
5479 zil_close(zd
->zd_zilog
);
5480 dmu_objset_rele(zd
->zd_os
, zd
);
5486 * Kick off threads to run tests on all datasets in parallel.
5489 ztest_run(ztest_shared_t
*zs
)
5494 kthread_t
*resume_thread
;
5499 ztest_exiting
= B_FALSE
;
5502 * Initialize parent/child shared state.
5504 mutex_init(&ztest_vdev_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
5505 rw_init(&ztest_name_lock
, NULL
, RW_DEFAULT
, NULL
);
5507 zs
->zs_thread_start
= gethrtime();
5508 zs
->zs_thread_stop
=
5509 zs
->zs_thread_start
+ ztest_opts
.zo_passtime
* NANOSEC
;
5510 zs
->zs_thread_stop
= MIN(zs
->zs_thread_stop
, zs
->zs_proc_stop
);
5511 zs
->zs_thread_kill
= zs
->zs_thread_stop
;
5512 if (ztest_random(100) < ztest_opts
.zo_killrate
) {
5513 zs
->zs_thread_kill
-=
5514 ztest_random(ztest_opts
.zo_passtime
* NANOSEC
);
5517 mutex_init(&zcl
.zcl_callbacks_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
5519 list_create(&zcl
.zcl_callbacks
, sizeof (ztest_cb_data_t
),
5520 offsetof(ztest_cb_data_t
, zcd_node
));
5525 kernel_init(FREAD
| FWRITE
);
5526 VERIFY(spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
) == 0);
5527 spa
->spa_debug
= B_TRUE
;
5530 VERIFY3U(0, ==, dmu_objset_hold(ztest_opts
.zo_pool
, FTAG
, &os
));
5531 zs
->zs_guid
= dmu_objset_fsid_guid(os
);
5532 dmu_objset_rele(os
, FTAG
);
5534 spa
->spa_dedup_ditto
= 2 * ZIO_DEDUPDITTO_MIN
;
5537 * We don't expect the pool to suspend unless maxfaults == 0,
5538 * in which case ztest_fault_inject() temporarily takes away
5539 * the only valid replica.
5541 if (MAXFAULTS() == 0)
5542 spa
->spa_failmode
= ZIO_FAILURE_MODE_WAIT
;
5544 spa
->spa_failmode
= ZIO_FAILURE_MODE_PANIC
;
5547 * Create a thread to periodically resume suspended I/O.
5549 VERIFY3P((resume_thread
= zk_thread_create(NULL
, 0,
5550 (thread_func_t
)ztest_resume_thread
, spa
, TS_RUN
, NULL
, 0, 0,
5551 PTHREAD_CREATE_JOINABLE
)), !=, NULL
);
5554 * Set a deadman alarm to abort() if we hang.
5556 signal(SIGALRM
, ztest_deadman_alarm
);
5557 alarm((zs
->zs_thread_stop
- zs
->zs_thread_start
) / NANOSEC
+ GRACE
);
5560 * Verify that we can safely inquire about about any object,
5561 * whether it's allocated or not. To make it interesting,
5562 * we probe a 5-wide window around each power of two.
5563 * This hits all edge cases, including zero and the max.
5565 for (t
= 0; t
< 64; t
++) {
5566 for (d
= -5; d
<= 5; d
++) {
5567 error
= dmu_object_info(spa
->spa_meta_objset
,
5568 (1ULL << t
) + d
, NULL
);
5569 ASSERT(error
== 0 || error
== ENOENT
||
5575 * If we got any ENOSPC errors on the previous run, destroy something.
5577 if (zs
->zs_enospc_count
!= 0) {
5578 int d
= ztest_random(ztest_opts
.zo_datasets
);
5579 ztest_dataset_destroy(d
);
5581 zs
->zs_enospc_count
= 0;
5583 tid
= umem_zalloc(ztest_opts
.zo_threads
* sizeof (kt_did_t
),
5586 if (ztest_opts
.zo_verbose
>= 4)
5587 (void) printf("starting main threads...\n");
5590 * Kick off all the tests that run in parallel.
5592 for (t
= 0; t
< ztest_opts
.zo_threads
; t
++) {
5595 if (t
< ztest_opts
.zo_datasets
&&
5596 ztest_dataset_open(t
) != 0)
5599 VERIFY3P(thread
= zk_thread_create(NULL
, 0,
5600 (thread_func_t
)ztest_thread
,
5601 (void *)(uintptr_t)t
, TS_RUN
, NULL
, 0, 0,
5602 PTHREAD_CREATE_JOINABLE
), !=, NULL
);
5603 tid
[t
] = thread
->t_tid
;
5607 * Wait for all of the tests to complete. We go in reverse order
5608 * so we don't close datasets while threads are still using them.
5610 for (t
= ztest_opts
.zo_threads
- 1; t
>= 0; t
--) {
5611 thread_join(tid
[t
]);
5612 if (t
< ztest_opts
.zo_datasets
)
5613 ztest_dataset_close(t
);
5616 txg_wait_synced(spa_get_dsl(spa
), 0);
5618 zs
->zs_alloc
= metaslab_class_get_alloc(spa_normal_class(spa
));
5619 zs
->zs_space
= metaslab_class_get_space(spa_normal_class(spa
));
5621 umem_free(tid
, ztest_opts
.zo_threads
* sizeof (kt_did_t
));
5623 /* Kill the resume thread */
5624 ztest_exiting
= B_TRUE
;
5625 thread_join(resume_thread
->t_tid
);
5629 * Right before closing the pool, kick off a bunch of async I/O;
5630 * spa_close() should wait for it to complete.
5632 for (object
= 1; object
< 50; object
++)
5633 dmu_prefetch(spa
->spa_meta_objset
, object
, 0, 1ULL << 20);
5635 /* Verify that at least one commit cb was called in a timely fashion */
5636 if (zc_cb_counter
>= ZTEST_COMMIT_CB_MIN_REG
)
5637 VERIFY3U(zc_min_txg_delay
, ==, 0);
5639 spa_close(spa
, FTAG
);
5642 * Verify that we can loop over all pools.
5644 mutex_enter(&spa_namespace_lock
);
5645 for (spa
= spa_next(NULL
); spa
!= NULL
; spa
= spa_next(spa
))
5646 if (ztest_opts
.zo_verbose
> 3)
5647 (void) printf("spa_next: found %s\n", spa_name(spa
));
5648 mutex_exit(&spa_namespace_lock
);
5651 * Verify that we can export the pool and reimport it under a
5654 if (ztest_random(2) == 0) {
5655 char name
[MAXNAMELEN
];
5656 (void) snprintf(name
, MAXNAMELEN
, "%s_import",
5657 ztest_opts
.zo_pool
);
5658 ztest_spa_import_export(ztest_opts
.zo_pool
, name
);
5659 ztest_spa_import_export(name
, ztest_opts
.zo_pool
);
5664 list_destroy(&zcl
.zcl_callbacks
);
5665 mutex_destroy(&zcl
.zcl_callbacks_lock
);
5666 rw_destroy(&ztest_name_lock
);
5667 mutex_destroy(&ztest_vdev_lock
);
5673 ztest_ds_t
*zd
= &ztest_ds
[0];
5677 if (ztest_opts
.zo_verbose
>= 3)
5678 (void) printf("testing spa_freeze()...\n");
5680 kernel_init(FREAD
| FWRITE
);
5681 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
5682 VERIFY3U(0, ==, ztest_dataset_open(0));
5685 * Force the first log block to be transactionally allocated.
5686 * We have to do this before we freeze the pool -- otherwise
5687 * the log chain won't be anchored.
5689 while (BP_IS_HOLE(&zd
->zd_zilog
->zl_header
->zh_log
)) {
5690 ztest_dmu_object_alloc_free(zd
, 0);
5691 zil_commit(zd
->zd_zilog
, 0);
5694 txg_wait_synced(spa_get_dsl(spa
), 0);
5697 * Freeze the pool. This stops spa_sync() from doing anything,
5698 * so that the only way to record changes from now on is the ZIL.
5703 * Run tests that generate log records but don't alter the pool config
5704 * or depend on DSL sync tasks (snapshots, objset create/destroy, etc).
5705 * We do a txg_wait_synced() after each iteration to force the txg
5706 * to increase well beyond the last synced value in the uberblock.
5707 * The ZIL should be OK with that.
5709 while (ztest_random(10) != 0 &&
5710 numloops
++ < ztest_opts
.zo_maxloops
) {
5711 ztest_dmu_write_parallel(zd
, 0);
5712 ztest_dmu_object_alloc_free(zd
, 0);
5713 txg_wait_synced(spa_get_dsl(spa
), 0);
5717 * Commit all of the changes we just generated.
5719 zil_commit(zd
->zd_zilog
, 0);
5720 txg_wait_synced(spa_get_dsl(spa
), 0);
5723 * Close our dataset and close the pool.
5725 ztest_dataset_close(0);
5726 spa_close(spa
, FTAG
);
5730 * Open and close the pool and dataset to induce log replay.
5732 kernel_init(FREAD
| FWRITE
);
5733 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
5734 VERIFY3U(0, ==, ztest_dataset_open(0));
5735 ztest_dataset_close(0);
5736 spa_close(spa
, FTAG
);
5741 print_time(hrtime_t t
, char *timebuf
)
5743 hrtime_t s
= t
/ NANOSEC
;
5744 hrtime_t m
= s
/ 60;
5745 hrtime_t h
= m
/ 60;
5746 hrtime_t d
= h
/ 24;
5755 (void) sprintf(timebuf
,
5756 "%llud%02lluh%02llum%02llus", d
, h
, m
, s
);
5758 (void) sprintf(timebuf
, "%lluh%02llum%02llus", h
, m
, s
);
5760 (void) sprintf(timebuf
, "%llum%02llus", m
, s
);
5762 (void) sprintf(timebuf
, "%llus", s
);
5766 make_random_props(void)
5770 if (ztest_random(2) == 0)
5773 VERIFY(nvlist_alloc(&props
, NV_UNIQUE_NAME
, 0) == 0);
5774 VERIFY(nvlist_add_uint64(props
, "autoreplace", 1) == 0);
5780 * Create a storage pool with the given name and initial vdev size.
5781 * Then test spa_freeze() functionality.
5784 ztest_init(ztest_shared_t
*zs
)
5787 nvlist_t
*nvroot
, *props
;
5789 mutex_init(&ztest_vdev_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
5790 rw_init(&ztest_name_lock
, NULL
, RW_DEFAULT
, NULL
);
5792 kernel_init(FREAD
| FWRITE
);
5795 * Create the storage pool.
5797 (void) spa_destroy(ztest_opts
.zo_pool
);
5798 ztest_shared
->zs_vdev_next_leaf
= 0;
5800 zs
->zs_mirrors
= ztest_opts
.zo_mirrors
;
5801 nvroot
= make_vdev_root(NULL
, NULL
, ztest_opts
.zo_vdev_size
, 0,
5802 0, ztest_opts
.zo_raidz
, zs
->zs_mirrors
, 1);
5803 props
= make_random_props();
5804 VERIFY3U(0, ==, spa_create(ztest_opts
.zo_pool
, nvroot
, props
,
5806 nvlist_free(nvroot
);
5808 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
5809 zs
->zs_metaslab_sz
=
5810 1ULL << spa
->spa_root_vdev
->vdev_child
[0]->vdev_ms_shift
;
5811 spa_close(spa
, FTAG
);
5815 ztest_run_zdb(ztest_opts
.zo_pool
);
5819 ztest_run_zdb(ztest_opts
.zo_pool
);
5821 rw_destroy(&ztest_name_lock
);
5822 mutex_destroy(&ztest_vdev_lock
);
5828 static char ztest_name_data
[] = "/tmp/ztest.data.XXXXXX";
5830 ztest_fd_data
= mkstemp(ztest_name_data
);
5831 ASSERT3S(ztest_fd_data
, >=, 0);
5832 (void) unlink(ztest_name_data
);
5836 shared_data_size(ztest_shared_hdr_t
*hdr
)
5840 size
= hdr
->zh_hdr_size
;
5841 size
+= hdr
->zh_opts_size
;
5842 size
+= hdr
->zh_size
;
5843 size
+= hdr
->zh_stats_size
* hdr
->zh_stats_count
;
5844 size
+= hdr
->zh_ds_size
* hdr
->zh_ds_count
;
5853 ztest_shared_hdr_t
*hdr
;
5855 hdr
= (void *)mmap(0, P2ROUNDUP(sizeof (*hdr
), getpagesize()),
5856 PROT_READ
| PROT_WRITE
, MAP_SHARED
, ztest_fd_data
, 0);
5857 ASSERT(hdr
!= MAP_FAILED
);
5859 VERIFY3U(0, ==, ftruncate(ztest_fd_data
, sizeof (ztest_shared_hdr_t
)));
5861 hdr
->zh_hdr_size
= sizeof (ztest_shared_hdr_t
);
5862 hdr
->zh_opts_size
= sizeof (ztest_shared_opts_t
);
5863 hdr
->zh_size
= sizeof (ztest_shared_t
);
5864 hdr
->zh_stats_size
= sizeof (ztest_shared_callstate_t
);
5865 hdr
->zh_stats_count
= ZTEST_FUNCS
;
5866 hdr
->zh_ds_size
= sizeof (ztest_shared_ds_t
);
5867 hdr
->zh_ds_count
= ztest_opts
.zo_datasets
;
5869 size
= shared_data_size(hdr
);
5870 VERIFY3U(0, ==, ftruncate(ztest_fd_data
, size
));
5872 (void) munmap((caddr_t
)hdr
, P2ROUNDUP(sizeof (*hdr
), getpagesize()));
5879 ztest_shared_hdr_t
*hdr
;
5882 hdr
= (void *)mmap(0, P2ROUNDUP(sizeof (*hdr
), getpagesize()),
5883 PROT_READ
, MAP_SHARED
, ztest_fd_data
, 0);
5884 ASSERT(hdr
!= MAP_FAILED
);
5886 size
= shared_data_size(hdr
);
5888 (void) munmap((caddr_t
)hdr
, P2ROUNDUP(sizeof (*hdr
), getpagesize()));
5889 hdr
= ztest_shared_hdr
= (void *)mmap(0, P2ROUNDUP(size
, getpagesize()),
5890 PROT_READ
| PROT_WRITE
, MAP_SHARED
, ztest_fd_data
, 0);
5891 ASSERT(hdr
!= MAP_FAILED
);
5892 buf
= (uint8_t *)hdr
;
5894 offset
= hdr
->zh_hdr_size
;
5895 ztest_shared_opts
= (void *)&buf
[offset
];
5896 offset
+= hdr
->zh_opts_size
;
5897 ztest_shared
= (void *)&buf
[offset
];
5898 offset
+= hdr
->zh_size
;
5899 ztest_shared_callstate
= (void *)&buf
[offset
];
5900 offset
+= hdr
->zh_stats_size
* hdr
->zh_stats_count
;
5901 ztest_shared_ds
= (void *)&buf
[offset
];
5905 exec_child(char *cmd
, char *libpath
, boolean_t ignorekill
, int *statusp
)
5909 char *cmdbuf
= NULL
;
5914 cmdbuf
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
5915 (void) strlcpy(cmdbuf
, getexecname(), MAXPATHLEN
);
5920 fatal(1, "fork failed");
5922 if (pid
== 0) { /* child */
5923 char *emptyargv
[2] = { cmd
, NULL
};
5924 char fd_data_str
[12];
5926 struct rlimit rl
= { 1024, 1024 };
5927 (void) setrlimit(RLIMIT_NOFILE
, &rl
);
5929 (void) close(ztest_fd_rand
);
5930 VERIFY(11 >= snprintf(fd_data_str
, 12, "%d", ztest_fd_data
));
5931 VERIFY(0 == setenv("ZTEST_FD_DATA", fd_data_str
, 1));
5933 (void) enable_extended_FILE_stdio(-1, -1);
5934 if (libpath
!= NULL
)
5935 VERIFY(0 == setenv("LD_LIBRARY_PATH", libpath
, 1));
5936 (void) execv(cmd
, emptyargv
);
5937 ztest_dump_core
= B_FALSE
;
5938 fatal(B_TRUE
, "exec failed: %s", cmd
);
5941 if (cmdbuf
!= NULL
) {
5942 umem_free(cmdbuf
, MAXPATHLEN
);
5946 while (waitpid(pid
, &status
, 0) != pid
)
5948 if (statusp
!= NULL
)
5951 if (WIFEXITED(status
)) {
5952 if (WEXITSTATUS(status
) != 0) {
5953 (void) fprintf(stderr
, "child exited with code %d\n",
5954 WEXITSTATUS(status
));
5958 } else if (WIFSIGNALED(status
)) {
5959 if (!ignorekill
|| WTERMSIG(status
) != SIGKILL
) {
5960 (void) fprintf(stderr
, "child died with signal %d\n",
5966 (void) fprintf(stderr
, "something strange happened to child\n");
5973 ztest_run_init(void)
5977 ztest_shared_t
*zs
= ztest_shared
;
5979 ASSERT(ztest_opts
.zo_init
!= 0);
5982 * Blow away any existing copy of zpool.cache
5984 (void) remove(spa_config_path
);
5987 * Create and initialize our storage pool.
5989 for (i
= 1; i
<= ztest_opts
.zo_init
; i
++) {
5990 bzero(zs
, sizeof (ztest_shared_t
));
5991 if (ztest_opts
.zo_verbose
>= 3 &&
5992 ztest_opts
.zo_init
!= 1) {
5993 (void) printf("ztest_init(), pass %d\n", i
);
6000 main(int argc
, char **argv
)
6008 ztest_shared_callstate_t
*zc
;
6015 char *fd_data_str
= getenv("ZTEST_FD_DATA");
6017 (void) setvbuf(stdout
, NULL
, _IOLBF
, 0);
6019 ztest_fd_rand
= open("/dev/urandom", O_RDONLY
);
6020 ASSERT3S(ztest_fd_rand
, >=, 0);
6023 dprintf_setup(&argc
, argv
);
6024 process_options(argc
, argv
);
6029 bcopy(&ztest_opts
, ztest_shared_opts
,
6030 sizeof (*ztest_shared_opts
));
6032 ztest_fd_data
= atoi(fd_data_str
);
6034 bcopy(ztest_shared_opts
, &ztest_opts
, sizeof (ztest_opts
));
6036 ASSERT3U(ztest_opts
.zo_datasets
, ==, ztest_shared_hdr
->zh_ds_count
);
6038 /* Override location of zpool.cache */
6039 VERIFY(asprintf((char **)&spa_config_path
, "%s/zpool.cache",
6040 ztest_opts
.zo_dir
) != -1);
6042 ztest_ds
= umem_alloc(ztest_opts
.zo_datasets
* sizeof (ztest_ds_t
),
6047 metaslab_gang_bang
= ztest_opts
.zo_metaslab_gang_bang
;
6048 metaslab_df_alloc_threshold
=
6049 zs
->zs_metaslab_df_alloc_threshold
;
6058 hasalt
= (strlen(ztest_opts
.zo_alt_ztest
) != 0);
6060 if (ztest_opts
.zo_verbose
>= 1) {
6061 (void) printf("%llu vdevs, %d datasets, %d threads,"
6062 " %llu seconds...\n",
6063 (u_longlong_t
)ztest_opts
.zo_vdevs
,
6064 ztest_opts
.zo_datasets
,
6065 ztest_opts
.zo_threads
,
6066 (u_longlong_t
)ztest_opts
.zo_time
);
6069 cmd
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
6070 (void) strlcpy(cmd
, getexecname(), MAXNAMELEN
);
6072 zs
->zs_do_init
= B_TRUE
;
6073 if (strlen(ztest_opts
.zo_alt_ztest
) != 0) {
6074 if (ztest_opts
.zo_verbose
>= 1) {
6075 (void) printf("Executing older ztest for "
6076 "initialization: %s\n", ztest_opts
.zo_alt_ztest
);
6078 VERIFY(!exec_child(ztest_opts
.zo_alt_ztest
,
6079 ztest_opts
.zo_alt_libpath
, B_FALSE
, NULL
));
6081 VERIFY(!exec_child(NULL
, NULL
, B_FALSE
, NULL
));
6083 zs
->zs_do_init
= B_FALSE
;
6085 zs
->zs_proc_start
= gethrtime();
6086 zs
->zs_proc_stop
= zs
->zs_proc_start
+ ztest_opts
.zo_time
* NANOSEC
;
6088 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
6089 zi
= &ztest_info
[f
];
6090 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6091 if (zs
->zs_proc_start
+ zi
->zi_interval
[0] > zs
->zs_proc_stop
)
6092 zc
->zc_next
= UINT64_MAX
;
6094 zc
->zc_next
= zs
->zs_proc_start
+
6095 ztest_random(2 * zi
->zi_interval
[0] + 1);
6099 * Run the tests in a loop. These tests include fault injection
6100 * to verify that self-healing data works, and forced crashes
6101 * to verify that we never lose on-disk consistency.
6103 while (gethrtime() < zs
->zs_proc_stop
) {
6108 * Initialize the workload counters for each function.
6110 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
6111 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6116 /* Set the allocation switch size */
6117 zs
->zs_metaslab_df_alloc_threshold
=
6118 ztest_random(zs
->zs_metaslab_sz
/ 4) + 1;
6120 if (!hasalt
|| ztest_random(2) == 0) {
6121 if (hasalt
&& ztest_opts
.zo_verbose
>= 1) {
6122 (void) printf("Executing newer ztest: %s\n",
6126 killed
= exec_child(cmd
, NULL
, B_TRUE
, &status
);
6128 if (hasalt
&& ztest_opts
.zo_verbose
>= 1) {
6129 (void) printf("Executing older ztest: %s\n",
6130 ztest_opts
.zo_alt_ztest
);
6133 killed
= exec_child(ztest_opts
.zo_alt_ztest
,
6134 ztest_opts
.zo_alt_libpath
, B_TRUE
, &status
);
6141 if (ztest_opts
.zo_verbose
>= 1) {
6142 hrtime_t now
= gethrtime();
6144 now
= MIN(now
, zs
->zs_proc_stop
);
6145 print_time(zs
->zs_proc_stop
- now
, timebuf
);
6146 nicenum(zs
->zs_space
, numbuf
);
6148 (void) printf("Pass %3d, %8s, %3llu ENOSPC, "
6149 "%4.1f%% of %5s used, %3.0f%% done, %8s to go\n",
6151 WIFEXITED(status
) ? "Complete" : "SIGKILL",
6152 (u_longlong_t
)zs
->zs_enospc_count
,
6153 100.0 * zs
->zs_alloc
/ zs
->zs_space
,
6155 100.0 * (now
- zs
->zs_proc_start
) /
6156 (ztest_opts
.zo_time
* NANOSEC
), timebuf
);
6159 if (ztest_opts
.zo_verbose
>= 2) {
6160 (void) printf("\nWorkload summary:\n\n");
6161 (void) printf("%7s %9s %s\n",
6162 "Calls", "Time", "Function");
6163 (void) printf("%7s %9s %s\n",
6164 "-----", "----", "--------");
6165 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
6168 zi
= &ztest_info
[f
];
6169 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6170 print_time(zc
->zc_time
, timebuf
);
6171 (void) dladdr((void *)zi
->zi_func
, &dli
);
6172 (void) printf("%7llu %9s %s\n",
6173 (u_longlong_t
)zc
->zc_count
, timebuf
,
6176 (void) printf("\n");
6180 * It's possible that we killed a child during a rename test,
6181 * in which case we'll have a 'ztest_tmp' pool lying around
6182 * instead of 'ztest'. Do a blind rename in case this happened.
6185 if (spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
) == 0) {
6186 spa_close(spa
, FTAG
);
6188 char tmpname
[MAXNAMELEN
];
6190 kernel_init(FREAD
| FWRITE
);
6191 (void) snprintf(tmpname
, sizeof (tmpname
), "%s_tmp",
6192 ztest_opts
.zo_pool
);
6193 (void) spa_rename(tmpname
, ztest_opts
.zo_pool
);
6197 ztest_run_zdb(ztest_opts
.zo_pool
);
6200 if (ztest_opts
.zo_verbose
>= 1) {
6202 (void) printf("%d runs of older ztest: %s\n", older
,
6203 ztest_opts
.zo_alt_ztest
);
6204 (void) printf("%d runs of newer ztest: %s\n", newer
,
6207 (void) printf("%d killed, %d completed, %.0f%% kill rate\n",
6208 kills
, iters
- kills
, (100.0 * kills
) / MAX(1, iters
));
6211 umem_free(cmd
, MAXNAMELEN
);