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 2009 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
27 * The objective of this program is to provide a DMU/ZAP/SPA stress test
28 * that runs entirely in userland, is easy to use, and easy to extend.
30 * The overall design of the ztest program is as follows:
32 * (1) For each major functional area (e.g. adding vdevs to a pool,
33 * creating and destroying datasets, reading and writing objects, etc)
34 * we have a simple routine to test that functionality. These
35 * individual routines do not have to do anything "stressful".
37 * (2) We turn these simple functionality tests into a stress test by
38 * running them all in parallel, with as many threads as desired,
39 * and spread across as many datasets, objects, and vdevs as desired.
41 * (3) While all this is happening, we inject faults into the pool to
42 * verify that self-healing data really works.
44 * (4) Every time we open a dataset, we change its checksum and compression
45 * functions. Thus even individual objects vary from block to block
46 * in which checksum they use and whether they're compressed.
48 * (5) To verify that we never lose on-disk consistency after a crash,
49 * we run the entire test in a child of the main process.
50 * At random times, the child self-immolates with a SIGKILL.
51 * This is the software equivalent of pulling the power cord.
52 * The parent then runs the test again, using the existing
53 * storage pool, as many times as desired.
55 * (6) To verify that we don't have future leaks or temporal incursions,
56 * many of the functional tests record the transaction group number
57 * as part of their data. When reading old data, they verify that
58 * the transaction group number is less than the current, open txg.
59 * If you add a new test, please do this if applicable.
61 * When run with no arguments, ztest runs for about five minutes and
62 * produces no output if successful. To get a little bit of information,
63 * specify -V. To get more information, specify -VV, and so on.
65 * To turn this into an overnight stress test, use -T to specify run time.
67 * You can ask more more vdevs [-v], datasets [-d], or threads [-t]
68 * to increase the pool capacity, fanout, and overall stress level.
70 * The -N(okill) option will suppress kills, so each child runs to completion.
71 * This can be useful when you're trying to distinguish temporal incursions
72 * from plain old race conditions.
75 #include <sys/zfs_context.h>
81 #include <sys/dmu_objset.h>
87 #include <sys/resource.h>
89 #include <sys/zio_checksum.h>
90 #include <sys/zio_compress.h>
92 #include <sys/vdev_impl.h>
93 #include <sys/vdev_file.h>
94 #include <sys/spa_impl.h>
95 #include <sys/dsl_prop.h>
96 #include <sys/dsl_dataset.h>
97 #include <sys/refcount.h>
99 #include <stdio_ext.h>
107 #include <sys/fs/zfs.h>
109 static char cmdname
[] = "ztest";
110 static char *zopt_pool
= cmdname
;
112 static uint64_t zopt_vdevs
= 5;
113 static uint64_t zopt_vdevtime
;
114 static int zopt_ashift
= SPA_MINBLOCKSHIFT
;
115 static int zopt_mirrors
= 2;
116 static int zopt_raidz
= 4;
117 static int zopt_raidz_parity
= 1;
118 static size_t zopt_vdev_size
= SPA_MINDEVSIZE
;
119 static int zopt_datasets
= 7;
120 static int zopt_threads
= 23;
121 static uint64_t zopt_passtime
= 60; /* 60 seconds */
122 static uint64_t zopt_killrate
= 70; /* 70% kill rate */
123 static int zopt_verbose
= 0;
124 static int zopt_init
= 1;
125 static char *zopt_dir
= "/tmp";
126 static uint64_t zopt_time
= 300; /* 5 minutes */
127 static int zopt_maxfaults
;
129 typedef struct ztest_block_tag
{
138 typedef struct ztest_args
{
139 char za_pool
[MAXNAMELEN
];
144 uint64_t za_instance
;
147 uint64_t za_diroff_shared
;
153 * Thread-local variables can go here to aid debugging.
155 ztest_block_tag_t za_rbt
;
156 ztest_block_tag_t za_wbt
;
157 dmu_object_info_t za_doi
;
161 typedef void ztest_func_t(ztest_args_t
*);
164 * Note: these aren't static because we want dladdr() to work.
166 ztest_func_t ztest_dmu_read_write
;
167 ztest_func_t ztest_dmu_read_write_zcopy
;
168 ztest_func_t ztest_dmu_write_parallel
;
169 ztest_func_t ztest_dmu_object_alloc_free
;
170 ztest_func_t ztest_zap
;
171 ztest_func_t ztest_zap_parallel
;
172 ztest_func_t ztest_traverse
;
173 ztest_func_t ztest_dsl_prop_get_set
;
174 ztest_func_t ztest_dmu_objset_create_destroy
;
175 ztest_func_t ztest_dmu_snapshot_create_destroy
;
176 ztest_func_t ztest_dsl_dataset_promote_busy
;
177 ztest_func_t ztest_spa_create_destroy
;
178 ztest_func_t ztest_fault_inject
;
179 ztest_func_t ztest_spa_rename
;
180 ztest_func_t ztest_vdev_attach_detach
;
181 ztest_func_t ztest_vdev_LUN_growth
;
182 ztest_func_t ztest_vdev_add_remove
;
183 ztest_func_t ztest_vdev_aux_add_remove
;
184 ztest_func_t ztest_scrub
;
186 typedef struct ztest_info
{
187 ztest_func_t
*zi_func
; /* test function */
188 uint64_t zi_iters
; /* iterations per execution */
189 uint64_t *zi_interval
; /* execute every <interval> seconds */
190 uint64_t zi_calls
; /* per-pass count */
191 uint64_t zi_call_time
; /* per-pass time */
192 uint64_t zi_call_total
; /* cumulative total */
193 uint64_t zi_call_target
; /* target cumulative total */
196 uint64_t zopt_always
= 0; /* all the time */
197 uint64_t zopt_often
= 1; /* every second */
198 uint64_t zopt_sometimes
= 10; /* every 10 seconds */
199 uint64_t zopt_rarely
= 60; /* every 60 seconds */
201 ztest_info_t ztest_info
[] = {
202 { ztest_dmu_read_write
, 1, &zopt_always
},
203 { ztest_dmu_read_write_zcopy
, 1, &zopt_always
},
204 { ztest_dmu_write_parallel
, 30, &zopt_always
},
205 { ztest_dmu_object_alloc_free
, 1, &zopt_always
},
206 { ztest_zap
, 30, &zopt_always
},
207 { ztest_zap_parallel
, 100, &zopt_always
},
208 { ztest_dsl_prop_get_set
, 1, &zopt_sometimes
},
209 { ztest_dmu_objset_create_destroy
, 1, &zopt_sometimes
},
210 { ztest_dmu_snapshot_create_destroy
, 1, &zopt_sometimes
},
211 { ztest_spa_create_destroy
, 1, &zopt_sometimes
},
212 { ztest_fault_inject
, 1, &zopt_sometimes
},
213 { ztest_spa_rename
, 1, &zopt_rarely
},
214 { ztest_vdev_attach_detach
, 1, &zopt_rarely
},
215 { ztest_vdev_LUN_growth
, 1, &zopt_rarely
},
216 { ztest_dsl_dataset_promote_busy
, 1, &zopt_rarely
},
217 { ztest_vdev_add_remove
, 1, &zopt_vdevtime
},
218 { ztest_vdev_aux_add_remove
, 1, &zopt_vdevtime
},
219 { ztest_scrub
, 1, &zopt_vdevtime
},
222 #define ZTEST_FUNCS (sizeof (ztest_info) / sizeof (ztest_info_t))
224 #define ZTEST_SYNC_LOCKS 16
227 * Stuff we need to share writably between parent and child.
229 typedef struct ztest_shared
{
230 mutex_t zs_vdev_lock
;
231 rwlock_t zs_name_lock
;
232 uint64_t zs_vdev_primaries
;
233 uint64_t zs_vdev_aux
;
234 uint64_t zs_enospc_count
;
235 hrtime_t zs_start_time
;
236 hrtime_t zs_stop_time
;
239 ztest_info_t zs_info
[ZTEST_FUNCS
];
240 mutex_t zs_sync_lock
[ZTEST_SYNC_LOCKS
];
241 uint64_t zs_seq
[ZTEST_SYNC_LOCKS
];
244 static char ztest_dev_template
[] = "%s/%s.%llua";
245 static char ztest_aux_template
[] = "%s/%s.%s.%llu";
246 static ztest_shared_t
*ztest_shared
;
248 static int ztest_random_fd
;
249 static int ztest_dump_core
= 1;
251 static uint64_t metaslab_sz
;
252 static boolean_t ztest_exiting
;
254 extern uint64_t metaslab_gang_bang
;
255 extern uint64_t metaslab_df_alloc_threshold
;
257 #define ZTEST_DIROBJ 1
258 #define ZTEST_MICROZAP_OBJ 2
259 #define ZTEST_FATZAP_OBJ 3
261 #define ZTEST_DIROBJ_BLOCKSIZE (1 << 10)
262 #define ZTEST_DIRSIZE 256
264 static void usage(boolean_t
) __NORETURN
;
267 * These libumem hooks provide a reasonable set of defaults for the allocator's
268 * debugging facilities.
273 return ("default,verbose"); /* $UMEM_DEBUG setting */
277 _umem_logging_init(void)
279 return ("fail,contents"); /* $UMEM_LOGGING setting */
282 #define FATAL_MSG_SZ 1024
287 fatal(int do_perror
, char *message
, ...)
290 int save_errno
= errno
;
291 char buf
[FATAL_MSG_SZ
];
293 (void) fflush(stdout
);
295 va_start(args
, message
);
296 (void) sprintf(buf
, "ztest: ");
298 (void) vsprintf(buf
+ strlen(buf
), message
, args
);
301 (void) snprintf(buf
+ strlen(buf
), FATAL_MSG_SZ
- strlen(buf
),
302 ": %s", strerror(save_errno
));
304 (void) fprintf(stderr
, "%s\n", buf
);
305 fatal_msg
= buf
; /* to ease debugging */
312 str2shift(const char *buf
)
314 const char *ends
= "BKMGTPEZ";
319 for (i
= 0; i
< strlen(ends
); i
++) {
320 if (toupper(buf
[0]) == ends
[i
])
323 if (i
== strlen(ends
)) {
324 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n",
328 if (buf
[1] == '\0' || (toupper(buf
[1]) == 'B' && buf
[2] == '\0')) {
331 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n", buf
);
337 nicenumtoull(const char *buf
)
342 val
= strtoull(buf
, &end
, 0);
344 (void) fprintf(stderr
, "ztest: bad numeric value: %s\n", buf
);
346 } else if (end
[0] == '.') {
347 double fval
= strtod(buf
, &end
);
348 fval
*= pow(2, str2shift(end
));
349 if (fval
> UINT64_MAX
) {
350 (void) fprintf(stderr
, "ztest: value too large: %s\n",
354 val
= (uint64_t)fval
;
356 int shift
= str2shift(end
);
357 if (shift
>= 64 || (val
<< shift
) >> shift
!= val
) {
358 (void) fprintf(stderr
, "ztest: value too large: %s\n",
368 usage(boolean_t requested
)
370 char nice_vdev_size
[10];
371 char nice_gang_bang
[10];
372 FILE *fp
= requested
? stdout
: stderr
;
374 nicenum(zopt_vdev_size
, nice_vdev_size
);
375 nicenum(metaslab_gang_bang
, nice_gang_bang
);
377 (void) fprintf(fp
, "Usage: %s\n"
378 "\t[-v vdevs (default: %llu)]\n"
379 "\t[-s size_of_each_vdev (default: %s)]\n"
380 "\t[-a alignment_shift (default: %d) (use 0 for random)]\n"
381 "\t[-m mirror_copies (default: %d)]\n"
382 "\t[-r raidz_disks (default: %d)]\n"
383 "\t[-R raidz_parity (default: %d)]\n"
384 "\t[-d datasets (default: %d)]\n"
385 "\t[-t threads (default: %d)]\n"
386 "\t[-g gang_block_threshold (default: %s)]\n"
387 "\t[-i initialize pool i times (default: %d)]\n"
388 "\t[-k kill percentage (default: %llu%%)]\n"
389 "\t[-p pool_name (default: %s)]\n"
390 "\t[-f file directory for vdev files (default: %s)]\n"
391 "\t[-V(erbose)] (use multiple times for ever more blather)\n"
392 "\t[-E(xisting)] (use existing pool instead of creating new one)\n"
393 "\t[-T time] total run time (default: %llu sec)\n"
394 "\t[-P passtime] time per pass (default: %llu sec)\n"
395 "\t[-h] (print help)\n"
398 (u_longlong_t
)zopt_vdevs
, /* -v */
399 nice_vdev_size
, /* -s */
400 zopt_ashift
, /* -a */
401 zopt_mirrors
, /* -m */
403 zopt_raidz_parity
, /* -R */
404 zopt_datasets
, /* -d */
405 zopt_threads
, /* -t */
406 nice_gang_bang
, /* -g */
408 (u_longlong_t
)zopt_killrate
, /* -k */
411 (u_longlong_t
)zopt_time
, /* -T */
412 (u_longlong_t
)zopt_passtime
); /* -P */
413 exit(requested
? 0 : 1);
417 ztest_random(uint64_t range
)
424 if (read(ztest_random_fd
, &r
, sizeof (r
)) != sizeof (r
))
425 fatal(1, "short read from /dev/urandom");
432 ztest_record_enospc(char *s
)
434 ztest_shared
->zs_enospc_count
++;
438 process_options(int argc
, char **argv
)
443 /* By default, test gang blocks for blocks 32K and greater */
444 metaslab_gang_bang
= 32 << 10;
446 while ((opt
= getopt(argc
, argv
,
447 "v:s:a:m:r:R:d:t:g:i:k:p:f:VET:P:h")) != EOF
) {
463 value
= nicenumtoull(optarg
);
470 zopt_vdev_size
= MAX(SPA_MINDEVSIZE
, value
);
476 zopt_mirrors
= value
;
479 zopt_raidz
= MAX(1, value
);
482 zopt_raidz_parity
= MIN(MAX(value
, 1), 2);
485 zopt_datasets
= MAX(1, value
);
488 zopt_threads
= MAX(1, value
);
491 metaslab_gang_bang
= MAX(SPA_MINBLOCKSIZE
<< 1, value
);
497 zopt_killrate
= value
;
500 zopt_pool
= strdup(optarg
);
503 zopt_dir
= strdup(optarg
);
515 zopt_passtime
= MAX(1, value
);
527 zopt_raidz_parity
= MIN(zopt_raidz_parity
, zopt_raidz
- 1);
529 zopt_vdevtime
= (zopt_vdevs
> 0 ? zopt_time
/ zopt_vdevs
: UINT64_MAX
);
530 zopt_maxfaults
= MAX(zopt_mirrors
, 1) * (zopt_raidz_parity
+ 1) - 1;
534 ztest_get_ashift(void)
536 if (zopt_ashift
== 0)
537 return (SPA_MINBLOCKSHIFT
+ ztest_random(3));
538 return (zopt_ashift
);
542 make_vdev_file(char *path
, char *aux
, size_t size
, uint64_t ashift
)
544 char pathbuf
[MAXPATHLEN
];
549 ashift
= ztest_get_ashift();
555 vdev
= ztest_shared
->zs_vdev_aux
;
556 (void) sprintf(path
, ztest_aux_template
,
557 zopt_dir
, zopt_pool
, aux
, vdev
);
559 vdev
= ztest_shared
->zs_vdev_primaries
++;
560 (void) sprintf(path
, ztest_dev_template
,
561 zopt_dir
, zopt_pool
, vdev
);
566 int fd
= open(path
, O_RDWR
| O_CREAT
| O_TRUNC
, 0666);
568 fatal(1, "can't open %s", path
);
569 if (ftruncate(fd
, size
) != 0)
570 fatal(1, "can't ftruncate %s", path
);
574 VERIFY(nvlist_alloc(&file
, NV_UNIQUE_NAME
, 0) == 0);
575 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_FILE
) == 0);
576 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_PATH
, path
) == 0);
577 VERIFY(nvlist_add_uint64(file
, ZPOOL_CONFIG_ASHIFT
, ashift
) == 0);
583 make_vdev_raidz(char *path
, char *aux
, size_t size
, uint64_t ashift
, int r
)
585 nvlist_t
*raidz
, **child
;
589 return (make_vdev_file(path
, aux
, size
, ashift
));
590 child
= umem_alloc(r
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
592 for (c
= 0; c
< r
; c
++)
593 child
[c
] = make_vdev_file(path
, aux
, size
, ashift
);
595 VERIFY(nvlist_alloc(&raidz
, NV_UNIQUE_NAME
, 0) == 0);
596 VERIFY(nvlist_add_string(raidz
, ZPOOL_CONFIG_TYPE
,
597 VDEV_TYPE_RAIDZ
) == 0);
598 VERIFY(nvlist_add_uint64(raidz
, ZPOOL_CONFIG_NPARITY
,
599 zopt_raidz_parity
) == 0);
600 VERIFY(nvlist_add_nvlist_array(raidz
, ZPOOL_CONFIG_CHILDREN
,
603 for (c
= 0; c
< r
; c
++)
604 nvlist_free(child
[c
]);
606 umem_free(child
, r
* sizeof (nvlist_t
*));
612 make_vdev_mirror(char *path
, char *aux
, size_t size
, uint64_t ashift
,
615 nvlist_t
*mirror
, **child
;
619 return (make_vdev_raidz(path
, aux
, size
, ashift
, r
));
621 child
= umem_alloc(m
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
623 for (c
= 0; c
< m
; c
++)
624 child
[c
] = make_vdev_raidz(path
, aux
, size
, ashift
, r
);
626 VERIFY(nvlist_alloc(&mirror
, NV_UNIQUE_NAME
, 0) == 0);
627 VERIFY(nvlist_add_string(mirror
, ZPOOL_CONFIG_TYPE
,
628 VDEV_TYPE_MIRROR
) == 0);
629 VERIFY(nvlist_add_nvlist_array(mirror
, ZPOOL_CONFIG_CHILDREN
,
632 for (c
= 0; c
< m
; c
++)
633 nvlist_free(child
[c
]);
635 umem_free(child
, m
* sizeof (nvlist_t
*));
641 make_vdev_root(char *path
, char *aux
, size_t size
, uint64_t ashift
,
642 int log
, int r
, int m
, int t
)
644 nvlist_t
*root
, **child
;
649 child
= umem_alloc(t
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
651 for (c
= 0; c
< t
; c
++) {
652 child
[c
] = make_vdev_mirror(path
, aux
, size
, ashift
, r
, m
);
653 VERIFY(nvlist_add_uint64(child
[c
], ZPOOL_CONFIG_IS_LOG
,
657 VERIFY(nvlist_alloc(&root
, NV_UNIQUE_NAME
, 0) == 0);
658 VERIFY(nvlist_add_string(root
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_ROOT
) == 0);
659 VERIFY(nvlist_add_nvlist_array(root
, aux
? aux
: ZPOOL_CONFIG_CHILDREN
,
662 for (c
= 0; c
< t
; c
++)
663 nvlist_free(child
[c
]);
665 umem_free(child
, t
* sizeof (nvlist_t
*));
671 ztest_set_random_blocksize(objset_t
*os
, uint64_t object
, dmu_tx_t
*tx
)
673 int bs
= SPA_MINBLOCKSHIFT
+
674 ztest_random(SPA_MAXBLOCKSHIFT
- SPA_MINBLOCKSHIFT
+ 1);
675 int ibs
= DN_MIN_INDBLKSHIFT
+
676 ztest_random(DN_MAX_INDBLKSHIFT
- DN_MIN_INDBLKSHIFT
+ 1);
679 error
= dmu_object_set_blocksize(os
, object
, 1ULL << bs
, ibs
, tx
);
682 dmu_objset_name(os
, osname
);
683 fatal(0, "dmu_object_set_blocksize('%s', %llu, %d, %d) = %d",
684 osname
, object
, 1 << bs
, ibs
, error
);
689 ztest_random_checksum(void)
694 checksum
= ztest_random(ZIO_CHECKSUM_FUNCTIONS
);
695 } while (zio_checksum_table
[checksum
].ci_zbt
);
697 if (checksum
== ZIO_CHECKSUM_OFF
)
698 checksum
= ZIO_CHECKSUM_ON
;
704 ztest_random_compress(void)
706 return ((uint8_t)ztest_random(ZIO_COMPRESS_FUNCTIONS
));
710 ztest_replay_create(objset_t
*os
, lr_create_t
*lr
, boolean_t byteswap
)
716 byteswap_uint64_array(lr
, sizeof (*lr
));
718 tx
= dmu_tx_create(os
);
719 dmu_tx_hold_bonus(tx
, DMU_NEW_OBJECT
);
720 error
= dmu_tx_assign(tx
, TXG_WAIT
);
726 error
= dmu_object_claim(os
, lr
->lr_doid
, lr
->lr_mode
, 0,
728 ASSERT3U(error
, ==, 0);
731 if (zopt_verbose
>= 5) {
732 char osname
[MAXNAMELEN
];
733 dmu_objset_name(os
, osname
);
734 (void) printf("replay create of %s object %llu"
735 " in txg %llu = %d\n",
736 osname
, (u_longlong_t
)lr
->lr_doid
,
737 (u_longlong_t
)dmu_tx_get_txg(tx
), error
);
744 ztest_replay_remove(objset_t
*os
, lr_remove_t
*lr
, boolean_t byteswap
)
750 byteswap_uint64_array(lr
, sizeof (*lr
));
752 tx
= dmu_tx_create(os
);
753 dmu_tx_hold_free(tx
, lr
->lr_doid
, 0, DMU_OBJECT_END
);
754 error
= dmu_tx_assign(tx
, TXG_WAIT
);
760 error
= dmu_object_free(os
, lr
->lr_doid
, tx
);
766 zil_replay_func_t
*ztest_replay_vector
[TX_MAX_TYPE
] = {
767 NULL
, /* 0 no such transaction type */
768 ztest_replay_create
, /* TX_CREATE */
770 NULL
, /* TX_MKXATTR */
771 NULL
, /* TX_SYMLINK */
772 ztest_replay_remove
, /* TX_REMOVE */
775 NULL
, /* TX_RENAME */
777 NULL
, /* TX_TRUNCATE */
778 NULL
, /* TX_SETATTR */
783 * Verify that we can't destroy an active pool, create an existing pool,
784 * or create a pool with a bad vdev spec.
787 ztest_spa_create_destroy(ztest_args_t
*za
)
794 * Attempt to create using a bad file.
796 nvroot
= make_vdev_root("/dev/bogus", NULL
, 0, 0, 0, 0, 0, 1);
797 error
= spa_create("ztest_bad_file", nvroot
, NULL
, NULL
, NULL
);
800 fatal(0, "spa_create(bad_file) = %d", error
);
803 * Attempt to create using a bad mirror.
805 nvroot
= make_vdev_root("/dev/bogus", NULL
, 0, 0, 0, 0, 2, 1);
806 error
= spa_create("ztest_bad_mirror", nvroot
, NULL
, NULL
, NULL
);
809 fatal(0, "spa_create(bad_mirror) = %d", error
);
812 * Attempt to create an existing pool. It shouldn't matter
813 * what's in the nvroot; we should fail with EEXIST.
815 (void) rw_rdlock(&ztest_shared
->zs_name_lock
);
816 nvroot
= make_vdev_root("/dev/bogus", NULL
, 0, 0, 0, 0, 0, 1);
817 error
= spa_create(za
->za_pool
, nvroot
, NULL
, NULL
, NULL
);
820 fatal(0, "spa_create(whatever) = %d", error
);
822 error
= spa_open(za
->za_pool
, &spa
, FTAG
);
824 fatal(0, "spa_open() = %d", error
);
826 error
= spa_destroy(za
->za_pool
);
828 fatal(0, "spa_destroy() = %d", error
);
830 spa_close(spa
, FTAG
);
831 (void) rw_unlock(&ztest_shared
->zs_name_lock
);
835 vdev_lookup_by_path(vdev_t
*vd
, const char *path
)
839 if (vd
->vdev_path
!= NULL
&& strcmp(path
, vd
->vdev_path
) == 0)
842 for (int c
= 0; c
< vd
->vdev_children
; c
++)
843 if ((mvd
= vdev_lookup_by_path(vd
->vdev_child
[c
], path
)) !=
851 * Verify that vdev_add() works as expected.
854 ztest_vdev_add_remove(ztest_args_t
*za
)
856 spa_t
*spa
= za
->za_spa
;
857 uint64_t leaves
= MAX(zopt_mirrors
, 1) * zopt_raidz
;
861 (void) mutex_lock(&ztest_shared
->zs_vdev_lock
);
863 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
865 ztest_shared
->zs_vdev_primaries
=
866 spa
->spa_root_vdev
->vdev_children
* leaves
;
868 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
871 * Make 1/4 of the devices be log devices.
873 nvroot
= make_vdev_root(NULL
, NULL
, zopt_vdev_size
, 0,
874 ztest_random(4) == 0, zopt_raidz
, zopt_mirrors
, 1);
876 error
= spa_vdev_add(spa
, nvroot
);
879 (void) mutex_unlock(&ztest_shared
->zs_vdev_lock
);
882 ztest_record_enospc("spa_vdev_add");
884 fatal(0, "spa_vdev_add() = %d", error
);
888 * Verify that adding/removing aux devices (l2arc, hot spare) works as expected.
891 ztest_vdev_aux_add_remove(ztest_args_t
*za
)
893 spa_t
*spa
= za
->za_spa
;
894 vdev_t
*rvd
= spa
->spa_root_vdev
;
900 if (ztest_random(2) == 0) {
901 sav
= &spa
->spa_spares
;
902 aux
= ZPOOL_CONFIG_SPARES
;
904 sav
= &spa
->spa_l2cache
;
905 aux
= ZPOOL_CONFIG_L2CACHE
;
908 (void) mutex_lock(&ztest_shared
->zs_vdev_lock
);
910 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
912 if (sav
->sav_count
!= 0 && ztest_random(4) == 0) {
914 * Pick a random device to remove.
916 guid
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)]->vdev_guid
;
919 * Find an unused device we can add.
921 ztest_shared
->zs_vdev_aux
= 0;
923 char path
[MAXPATHLEN
];
925 (void) sprintf(path
, ztest_aux_template
, zopt_dir
,
926 zopt_pool
, aux
, ztest_shared
->zs_vdev_aux
);
927 for (c
= 0; c
< sav
->sav_count
; c
++)
928 if (strcmp(sav
->sav_vdevs
[c
]->vdev_path
,
931 if (c
== sav
->sav_count
&&
932 vdev_lookup_by_path(rvd
, path
) == NULL
)
934 ztest_shared
->zs_vdev_aux
++;
938 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
944 nvlist_t
*nvroot
= make_vdev_root(NULL
, aux
,
945 (zopt_vdev_size
* 5) / 4, 0, 0, 0, 0, 1);
946 error
= spa_vdev_add(spa
, nvroot
);
948 fatal(0, "spa_vdev_add(%p) = %d", nvroot
, error
);
952 * Remove an existing device. Sometimes, dirty its
953 * vdev state first to make sure we handle removal
954 * of devices that have pending state changes.
956 if (ztest_random(2) == 0)
957 (void) vdev_online(spa
, guid
, 0, NULL
);
959 error
= spa_vdev_remove(spa
, guid
, B_FALSE
);
960 if (error
!= 0 && error
!= EBUSY
)
961 fatal(0, "spa_vdev_remove(%llu) = %d", guid
, error
);
964 (void) mutex_unlock(&ztest_shared
->zs_vdev_lock
);
968 * Verify that we can attach and detach devices.
971 ztest_vdev_attach_detach(ztest_args_t
*za
)
973 spa_t
*spa
= za
->za_spa
;
974 spa_aux_vdev_t
*sav
= &spa
->spa_spares
;
975 vdev_t
*rvd
= spa
->spa_root_vdev
;
976 vdev_t
*oldvd
, *newvd
, *pvd
;
978 uint64_t leaves
= MAX(zopt_mirrors
, 1) * zopt_raidz
;
980 uint64_t ashift
= ztest_get_ashift();
981 uint64_t oldguid
, pguid
;
982 size_t oldsize
, newsize
;
983 char oldpath
[MAXPATHLEN
], newpath
[MAXPATHLEN
];
985 int oldvd_has_siblings
= B_FALSE
;
986 int newvd_is_spare
= B_FALSE
;
988 int error
, expected_error
;
990 (void) mutex_lock(&ztest_shared
->zs_vdev_lock
);
992 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
995 * Decide whether to do an attach or a replace.
997 replacing
= ztest_random(2);
1000 * Pick a random top-level vdev.
1002 top
= ztest_random(rvd
->vdev_children
);
1005 * Pick a random leaf within it.
1007 leaf
= ztest_random(leaves
);
1012 oldvd
= rvd
->vdev_child
[top
];
1013 if (zopt_mirrors
>= 1) {
1014 ASSERT(oldvd
->vdev_ops
== &vdev_mirror_ops
);
1015 ASSERT(oldvd
->vdev_children
>= zopt_mirrors
);
1016 oldvd
= oldvd
->vdev_child
[leaf
/ zopt_raidz
];
1018 if (zopt_raidz
> 1) {
1019 ASSERT(oldvd
->vdev_ops
== &vdev_raidz_ops
);
1020 ASSERT(oldvd
->vdev_children
== zopt_raidz
);
1021 oldvd
= oldvd
->vdev_child
[leaf
% zopt_raidz
];
1025 * If we're already doing an attach or replace, oldvd may be a
1026 * mirror vdev -- in which case, pick a random child.
1028 while (oldvd
->vdev_children
!= 0) {
1029 oldvd_has_siblings
= B_TRUE
;
1030 ASSERT(oldvd
->vdev_children
>= 2);
1031 oldvd
= oldvd
->vdev_child
[ztest_random(oldvd
->vdev_children
)];
1034 oldguid
= oldvd
->vdev_guid
;
1035 oldsize
= vdev_get_min_asize(oldvd
);
1036 oldvd_is_log
= oldvd
->vdev_top
->vdev_islog
;
1037 (void) strcpy(oldpath
, oldvd
->vdev_path
);
1038 pvd
= oldvd
->vdev_parent
;
1039 pguid
= pvd
->vdev_guid
;
1042 * If oldvd has siblings, then half of the time, detach it.
1044 if (oldvd_has_siblings
&& ztest_random(2) == 0) {
1045 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
1046 error
= spa_vdev_detach(spa
, oldguid
, pguid
, B_FALSE
);
1047 if (error
!= 0 && error
!= ENODEV
&& error
!= EBUSY
&&
1049 fatal(0, "detach (%s) returned %d", oldpath
, error
);
1050 (void) mutex_unlock(&ztest_shared
->zs_vdev_lock
);
1055 * For the new vdev, choose with equal probability between the two
1056 * standard paths (ending in either 'a' or 'b') or a random hot spare.
1058 if (sav
->sav_count
!= 0 && ztest_random(3) == 0) {
1059 newvd
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)];
1060 newvd_is_spare
= B_TRUE
;
1061 (void) strcpy(newpath
, newvd
->vdev_path
);
1063 (void) snprintf(newpath
, sizeof (newpath
), ztest_dev_template
,
1064 zopt_dir
, zopt_pool
, top
* leaves
+ leaf
);
1065 if (ztest_random(2) == 0)
1066 newpath
[strlen(newpath
) - 1] = 'b';
1067 newvd
= vdev_lookup_by_path(rvd
, newpath
);
1071 newsize
= vdev_get_min_asize(newvd
);
1074 * Make newsize a little bigger or smaller than oldsize.
1075 * If it's smaller, the attach should fail.
1076 * If it's larger, and we're doing a replace,
1077 * we should get dynamic LUN growth when we're done.
1079 newsize
= 10 * oldsize
/ (9 + ztest_random(3));
1083 * If pvd is not a mirror or root, the attach should fail with ENOTSUP,
1084 * unless it's a replace; in that case any non-replacing parent is OK.
1086 * If newvd is already part of the pool, it should fail with EBUSY.
1088 * If newvd is too small, it should fail with EOVERFLOW.
1090 if (pvd
->vdev_ops
!= &vdev_mirror_ops
&&
1091 pvd
->vdev_ops
!= &vdev_root_ops
&& (!replacing
||
1092 pvd
->vdev_ops
== &vdev_replacing_ops
||
1093 pvd
->vdev_ops
== &vdev_spare_ops
))
1094 expected_error
= ENOTSUP
;
1095 else if (newvd_is_spare
&& (!replacing
|| oldvd_is_log
))
1096 expected_error
= ENOTSUP
;
1097 else if (newvd
== oldvd
)
1098 expected_error
= replacing
? 0 : EBUSY
;
1099 else if (vdev_lookup_by_path(rvd
, newpath
) != NULL
)
1100 expected_error
= EBUSY
;
1101 else if (newsize
< oldsize
)
1102 expected_error
= EOVERFLOW
;
1103 else if (ashift
> oldvd
->vdev_top
->vdev_ashift
)
1104 expected_error
= EDOM
;
1108 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
1111 * Build the nvlist describing newpath.
1113 root
= make_vdev_root(newpath
, NULL
, newvd
== NULL
? newsize
: 0,
1114 ashift
, 0, 0, 0, 1);
1116 error
= spa_vdev_attach(spa
, oldguid
, root
, replacing
);
1121 * If our parent was the replacing vdev, but the replace completed,
1122 * then instead of failing with ENOTSUP we may either succeed,
1123 * fail with ENODEV, or fail with EOVERFLOW.
1125 if (expected_error
== ENOTSUP
&&
1126 (error
== 0 || error
== ENODEV
|| error
== EOVERFLOW
))
1127 expected_error
= error
;
1130 * If someone grew the LUN, the replacement may be too small.
1132 if (error
== EOVERFLOW
|| error
== EBUSY
)
1133 expected_error
= error
;
1135 /* XXX workaround 6690467 */
1136 if (error
!= expected_error
&& expected_error
!= EBUSY
) {
1137 fatal(0, "attach (%s %llu, %s %llu, %d) "
1138 "returned %d, expected %d",
1139 oldpath
, (longlong_t
)oldsize
, newpath
,
1140 (longlong_t
)newsize
, replacing
, error
, expected_error
);
1143 (void) mutex_unlock(&ztest_shared
->zs_vdev_lock
);
1147 * Callback function which expands the physical size of the vdev.
1150 grow_vdev(vdev_t
*vd
, void *arg
)
1152 spa_t
*spa
= vd
->vdev_spa
;
1153 size_t *newsize
= arg
;
1157 ASSERT(spa_config_held(spa
, SCL_STATE
, RW_READER
) == SCL_STATE
);
1158 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
1160 if ((fd
= open(vd
->vdev_path
, O_RDWR
)) == -1)
1163 fsize
= lseek(fd
, 0, SEEK_END
);
1164 (void) ftruncate(fd
, *newsize
);
1166 if (zopt_verbose
>= 6) {
1167 (void) printf("%s grew from %lu to %lu bytes\n",
1168 vd
->vdev_path
, (ulong_t
)fsize
, (ulong_t
)*newsize
);
1175 * Callback function which expands a given vdev by calling vdev_online().
1179 online_vdev(vdev_t
*vd
, void *arg
)
1181 spa_t
*spa
= vd
->vdev_spa
;
1182 vdev_t
*tvd
= vd
->vdev_top
;
1183 vdev_t
*pvd
= vd
->vdev_parent
;
1184 uint64_t guid
= vd
->vdev_guid
;
1186 ASSERT(spa_config_held(spa
, SCL_STATE
, RW_READER
) == SCL_STATE
);
1187 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
1189 /* Calling vdev_online will initialize the new metaslabs */
1190 spa_config_exit(spa
, SCL_STATE
, spa
);
1191 (void) vdev_online(spa
, guid
, ZFS_ONLINE_EXPAND
, NULL
);
1192 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
1195 * Since we dropped the lock we need to ensure that we're
1196 * still talking to the original vdev. It's possible this
1197 * vdev may have been detached/replaced while we were
1198 * trying to online it.
1200 if (vd
!= vdev_lookup_by_guid(tvd
, guid
) || vd
->vdev_parent
!= pvd
) {
1201 if (zopt_verbose
>= 6) {
1202 (void) printf("vdev %p has disappeared, was "
1203 "guid %llu\n", (void *)vd
, (u_longlong_t
)guid
);
1211 * Traverse the vdev tree calling the supplied function.
1212 * We continue to walk the tree until we either have walked all
1213 * children or we receive a non-NULL return from the callback.
1214 * If a NULL callback is passed, then we just return back the first
1215 * leaf vdev we encounter.
1218 vdev_walk_tree(vdev_t
*vd
, vdev_t
*(*func
)(vdev_t
*, void *), void *arg
)
1220 if (vd
->vdev_ops
->vdev_op_leaf
) {
1224 return (func(vd
, arg
));
1227 for (uint_t c
= 0; c
< vd
->vdev_children
; c
++) {
1228 vdev_t
*cvd
= vd
->vdev_child
[c
];
1229 if ((cvd
= vdev_walk_tree(cvd
, func
, arg
)) != NULL
)
1236 * Verify that dynamic LUN growth works as expected.
1239 ztest_vdev_LUN_growth(ztest_args_t
*za
)
1241 spa_t
*spa
= za
->za_spa
;
1242 vdev_t
*vd
, *tvd
= NULL
;
1243 size_t psize
, newsize
;
1244 uint64_t spa_newsize
, spa_cursize
, ms_count
;
1246 (void) mutex_lock(&ztest_shared
->zs_vdev_lock
);
1247 mutex_enter(&spa_namespace_lock
);
1248 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
1250 while (tvd
== NULL
|| tvd
->vdev_islog
) {
1253 vdev
= ztest_random(spa
->spa_root_vdev
->vdev_children
);
1254 tvd
= spa
->spa_root_vdev
->vdev_child
[vdev
];
1258 * Determine the size of the first leaf vdev associated with
1259 * our top-level device.
1261 vd
= vdev_walk_tree(tvd
, NULL
, NULL
);
1262 ASSERT3P(vd
, !=, NULL
);
1263 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
1265 psize
= vd
->vdev_psize
;
1268 * We only try to expand the vdev if it's less than 4x its
1269 * original size and it has a valid psize.
1271 if (psize
== 0 || psize
>= 4 * zopt_vdev_size
) {
1272 spa_config_exit(spa
, SCL_STATE
, spa
);
1273 mutex_exit(&spa_namespace_lock
);
1274 (void) mutex_unlock(&ztest_shared
->zs_vdev_lock
);
1278 newsize
= psize
+ psize
/ 8;
1279 ASSERT3U(newsize
, >, psize
);
1281 if (zopt_verbose
>= 6) {
1282 (void) printf("Expanding vdev %s from %lu to %lu\n",
1283 vd
->vdev_path
, (ulong_t
)psize
, (ulong_t
)newsize
);
1286 spa_cursize
= spa_get_space(spa
);
1287 ms_count
= tvd
->vdev_ms_count
;
1290 * Growing the vdev is a two step process:
1291 * 1). expand the physical size (i.e. relabel)
1292 * 2). online the vdev to create the new metaslabs
1294 if (vdev_walk_tree(tvd
, grow_vdev
, &newsize
) != NULL
||
1295 vdev_walk_tree(tvd
, online_vdev
, NULL
) != NULL
||
1296 tvd
->vdev_state
!= VDEV_STATE_HEALTHY
) {
1297 if (zopt_verbose
>= 5) {
1298 (void) printf("Could not expand LUN because "
1299 "some vdevs were not healthy\n");
1301 (void) spa_config_exit(spa
, SCL_STATE
, spa
);
1302 mutex_exit(&spa_namespace_lock
);
1303 (void) mutex_unlock(&ztest_shared
->zs_vdev_lock
);
1307 (void) spa_config_exit(spa
, SCL_STATE
, spa
);
1308 mutex_exit(&spa_namespace_lock
);
1311 * Expanding the LUN will update the config asynchronously,
1312 * thus we must wait for the async thread to complete any
1313 * pending tasks before proceeding.
1315 mutex_enter(&spa
->spa_async_lock
);
1316 while (spa
->spa_async_thread
!= NULL
|| spa
->spa_async_tasks
)
1317 cv_wait(&spa
->spa_async_cv
, &spa
->spa_async_lock
);
1318 mutex_exit(&spa
->spa_async_lock
);
1320 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
1321 spa_newsize
= spa_get_space(spa
);
1324 * Make sure we were able to grow the pool.
1326 if (ms_count
>= tvd
->vdev_ms_count
||
1327 spa_cursize
>= spa_newsize
) {
1328 (void) printf("Top-level vdev metaslab count: "
1329 "before %llu, after %llu\n",
1330 (u_longlong_t
)ms_count
,
1331 (u_longlong_t
)tvd
->vdev_ms_count
);
1332 fatal(0, "LUN expansion failed: before %llu, "
1333 "after %llu\n", spa_cursize
, spa_newsize
);
1334 } else if (zopt_verbose
>= 5) {
1335 char oldnumbuf
[6], newnumbuf
[6];
1337 nicenum(spa_cursize
, oldnumbuf
);
1338 nicenum(spa_newsize
, newnumbuf
);
1339 (void) printf("%s grew from %s to %s\n",
1340 spa
->spa_name
, oldnumbuf
, newnumbuf
);
1342 spa_config_exit(spa
, SCL_STATE
, spa
);
1343 (void) mutex_unlock(&ztest_shared
->zs_vdev_lock
);
1348 ztest_create_cb(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
)
1351 * Create the directory object.
1353 VERIFY(dmu_object_claim(os
, ZTEST_DIROBJ
,
1354 DMU_OT_UINT64_OTHER
, ZTEST_DIROBJ_BLOCKSIZE
,
1355 DMU_OT_UINT64_OTHER
, 5 * sizeof (ztest_block_tag_t
), tx
) == 0);
1357 VERIFY(zap_create_claim(os
, ZTEST_MICROZAP_OBJ
,
1358 DMU_OT_ZAP_OTHER
, DMU_OT_NONE
, 0, tx
) == 0);
1360 VERIFY(zap_create_claim(os
, ZTEST_FATZAP_OBJ
,
1361 DMU_OT_ZAP_OTHER
, DMU_OT_NONE
, 0, tx
) == 0);
1365 ztest_destroy_cb(char *name
, void *arg
)
1367 ztest_args_t
*za
= arg
;
1369 dmu_object_info_t
*doi
= &za
->za_doi
;
1373 * Verify that the dataset contains a directory object.
1375 error
= dmu_objset_open(name
, DMU_OST_OTHER
,
1376 DS_MODE_USER
| DS_MODE_READONLY
, &os
);
1377 ASSERT3U(error
, ==, 0);
1378 error
= dmu_object_info(os
, ZTEST_DIROBJ
, doi
);
1379 if (error
!= ENOENT
) {
1380 /* We could have crashed in the middle of destroying it */
1381 ASSERT3U(error
, ==, 0);
1382 ASSERT3U(doi
->doi_type
, ==, DMU_OT_UINT64_OTHER
);
1383 ASSERT3S(doi
->doi_physical_blks
, >=, 0);
1385 dmu_objset_close(os
);
1388 * Destroy the dataset.
1390 error
= dmu_objset_destroy(name
);
1392 (void) dmu_objset_open(name
, DMU_OST_OTHER
,
1393 DS_MODE_USER
| DS_MODE_READONLY
, &os
);
1394 fatal(0, "dmu_objset_destroy(os=%p) = %d\n", &os
, error
);
1400 * Verify that dmu_objset_{create,destroy,open,close} work as expected.
1403 ztest_log_create(zilog_t
*zilog
, dmu_tx_t
*tx
, uint64_t object
, int mode
)
1410 (void) sprintf(name
, "ZOBJ_%llu", (u_longlong_t
)object
);
1411 namesize
= strlen(name
) + 1;
1413 itx
= zil_itx_create(TX_CREATE
, sizeof (*lr
) + namesize
+
1414 ztest_random(ZIL_MAX_BLKSZ
));
1415 lr
= (lr_create_t
*)&itx
->itx_lr
;
1416 bzero(lr
+ 1, lr
->lr_common
.lrc_reclen
- sizeof (*lr
));
1417 lr
->lr_doid
= object
;
1422 lr
->lr_gen
= dmu_tx_get_txg(tx
);
1423 lr
->lr_crtime
[0] = time(NULL
);
1424 lr
->lr_crtime
[1] = 0;
1426 bcopy(name
, (char *)(lr
+ 1), namesize
);
1428 return (zil_itx_assign(zilog
, itx
, tx
));
1432 ztest_dmu_objset_create_destroy(ztest_args_t
*za
)
1437 int basemode
, expected_error
;
1442 (void) rw_rdlock(&ztest_shared
->zs_name_lock
);
1443 (void) snprintf(name
, 100, "%s/%s_temp_%llu", za
->za_pool
, za
->za_pool
,
1444 (u_longlong_t
)za
->za_instance
);
1446 basemode
= DS_MODE_TYPE(za
->za_instance
);
1447 if (basemode
!= DS_MODE_USER
&& basemode
!= DS_MODE_OWNER
)
1448 basemode
= DS_MODE_USER
;
1451 * If this dataset exists from a previous run, process its replay log
1452 * half of the time. If we don't replay it, then dmu_objset_destroy()
1453 * (invoked from ztest_destroy_cb() below) should just throw it away.
1455 if (ztest_random(2) == 0 &&
1456 dmu_objset_open(name
, DMU_OST_OTHER
, DS_MODE_OWNER
, &os
) == 0) {
1457 zil_replay(os
, os
, ztest_replay_vector
);
1458 dmu_objset_close(os
);
1462 * There may be an old instance of the dataset we're about to
1463 * create lying around from a previous run. If so, destroy it
1464 * and all of its snapshots.
1466 (void) dmu_objset_find(name
, ztest_destroy_cb
, za
,
1467 DS_FIND_CHILDREN
| DS_FIND_SNAPSHOTS
);
1470 * Verify that the destroyed dataset is no longer in the namespace.
1472 error
= dmu_objset_open(name
, DMU_OST_OTHER
, basemode
, &os
);
1473 if (error
!= ENOENT
)
1474 fatal(1, "dmu_objset_open(%s) found destroyed dataset %p",
1478 * Verify that we can create a new dataset.
1480 error
= dmu_objset_create(name
, DMU_OST_OTHER
, NULL
, 0,
1481 ztest_create_cb
, NULL
);
1483 if (error
== ENOSPC
) {
1484 ztest_record_enospc("dmu_objset_create");
1485 (void) rw_unlock(&ztest_shared
->zs_name_lock
);
1488 fatal(0, "dmu_objset_create(%s) = %d", name
, error
);
1491 error
= dmu_objset_open(name
, DMU_OST_OTHER
, basemode
, &os
);
1493 fatal(0, "dmu_objset_open(%s) = %d", name
, error
);
1497 * Open the intent log for it.
1499 zilog
= zil_open(os
, NULL
);
1502 * Put a random number of objects in there.
1504 objects
= ztest_random(20);
1506 while (objects
-- != 0) {
1508 dmu_tx_t
*tx
= dmu_tx_create(os
);
1509 dmu_tx_hold_write(tx
, DMU_NEW_OBJECT
, 0, sizeof (name
));
1510 error
= dmu_tx_assign(tx
, TXG_WAIT
);
1514 object
= dmu_object_alloc(os
, DMU_OT_UINT64_OTHER
, 0,
1515 DMU_OT_NONE
, 0, tx
);
1516 ztest_set_random_blocksize(os
, object
, tx
);
1517 seq
= ztest_log_create(zilog
, tx
, object
,
1518 DMU_OT_UINT64_OTHER
);
1519 dmu_write(os
, object
, 0, sizeof (name
), name
, tx
);
1522 if (ztest_random(5) == 0) {
1523 zil_commit(zilog
, seq
, object
);
1525 if (ztest_random(100) == 0) {
1526 error
= zil_suspend(zilog
);
1534 * Verify that we cannot create an existing dataset.
1536 error
= dmu_objset_create(name
, DMU_OST_OTHER
, NULL
, 0, NULL
, NULL
);
1537 if (error
!= EEXIST
)
1538 fatal(0, "created existing dataset, error = %d", error
);
1541 * Verify that multiple dataset holds are allowed, but only when
1542 * the new access mode is compatible with the base mode.
1544 if (basemode
== DS_MODE_OWNER
) {
1545 error
= dmu_objset_open(name
, DMU_OST_OTHER
, DS_MODE_USER
,
1548 fatal(0, "dmu_objset_open('%s') = %d", name
, error
);
1550 dmu_objset_close(os2
);
1552 error
= dmu_objset_open(name
, DMU_OST_OTHER
, DS_MODE_OWNER
, &os2
);
1553 expected_error
= (basemode
== DS_MODE_OWNER
) ? EBUSY
: 0;
1554 if (error
!= expected_error
)
1555 fatal(0, "dmu_objset_open('%s') = %d, expected %d",
1556 name
, error
, expected_error
);
1558 dmu_objset_close(os2
);
1561 dmu_objset_close(os
);
1563 error
= dmu_objset_destroy(name
);
1565 fatal(0, "dmu_objset_destroy(%s) = %d", name
, error
);
1567 (void) rw_unlock(&ztest_shared
->zs_name_lock
);
1571 * Verify that dmu_snapshot_{create,destroy,open,close} work as expected.
1574 ztest_dmu_snapshot_create_destroy(ztest_args_t
*za
)
1577 objset_t
*os
= za
->za_os
;
1579 char osname
[MAXNAMELEN
];
1581 (void) rw_rdlock(&ztest_shared
->zs_name_lock
);
1582 dmu_objset_name(os
, osname
);
1583 (void) snprintf(snapname
, 100, "%s@%llu", osname
,
1584 (u_longlong_t
)za
->za_instance
);
1586 error
= dmu_objset_destroy(snapname
);
1587 if (error
!= 0 && error
!= ENOENT
)
1588 fatal(0, "dmu_objset_destroy() = %d", error
);
1589 error
= dmu_objset_snapshot(osname
, strchr(snapname
, '@')+1,
1591 if (error
== ENOSPC
)
1592 ztest_record_enospc("dmu_take_snapshot");
1593 else if (error
!= 0 && error
!= EEXIST
)
1594 fatal(0, "dmu_take_snapshot() = %d", error
);
1595 (void) rw_unlock(&ztest_shared
->zs_name_lock
);
1599 * Cleanup non-standard snapshots and clones.
1602 ztest_dsl_dataset_cleanup(char *osname
, uint64_t curval
)
1604 char snap1name
[100];
1605 char clone1name
[100];
1606 char snap2name
[100];
1607 char clone2name
[100];
1608 char snap3name
[100];
1611 (void) snprintf(snap1name
, 100, "%s@s1_%llu", osname
, curval
);
1612 (void) snprintf(clone1name
, 100, "%s/c1_%llu", osname
, curval
);
1613 (void) snprintf(snap2name
, 100, "%s@s2_%llu", clone1name
, curval
);
1614 (void) snprintf(clone2name
, 100, "%s/c2_%llu", osname
, curval
);
1615 (void) snprintf(snap3name
, 100, "%s@s3_%llu", clone1name
, curval
);
1617 error
= dmu_objset_destroy(clone2name
);
1618 if (error
&& error
!= ENOENT
)
1619 fatal(0, "dmu_objset_destroy(%s) = %d", clone2name
, error
);
1620 error
= dmu_objset_destroy(snap3name
);
1621 if (error
&& error
!= ENOENT
)
1622 fatal(0, "dmu_objset_destroy(%s) = %d", snap3name
, error
);
1623 error
= dmu_objset_destroy(snap2name
);
1624 if (error
&& error
!= ENOENT
)
1625 fatal(0, "dmu_objset_destroy(%s) = %d", snap2name
, error
);
1626 error
= dmu_objset_destroy(clone1name
);
1627 if (error
&& error
!= ENOENT
)
1628 fatal(0, "dmu_objset_destroy(%s) = %d", clone1name
, error
);
1629 error
= dmu_objset_destroy(snap1name
);
1630 if (error
&& error
!= ENOENT
)
1631 fatal(0, "dmu_objset_destroy(%s) = %d", snap1name
, error
);
1635 * Verify dsl_dataset_promote handles EBUSY
1638 ztest_dsl_dataset_promote_busy(ztest_args_t
*za
)
1641 objset_t
*os
= za
->za_os
;
1644 char snap1name
[100];
1645 char clone1name
[100];
1646 char snap2name
[100];
1647 char clone2name
[100];
1648 char snap3name
[100];
1649 char osname
[MAXNAMELEN
];
1650 uint64_t curval
= za
->za_instance
;
1652 (void) rw_rdlock(&ztest_shared
->zs_name_lock
);
1654 dmu_objset_name(os
, osname
);
1655 ztest_dsl_dataset_cleanup(osname
, curval
);
1657 (void) snprintf(snap1name
, 100, "%s@s1_%llu", osname
, curval
);
1658 (void) snprintf(clone1name
, 100, "%s/c1_%llu", osname
, curval
);
1659 (void) snprintf(snap2name
, 100, "%s@s2_%llu", clone1name
, curval
);
1660 (void) snprintf(clone2name
, 100, "%s/c2_%llu", osname
, curval
);
1661 (void) snprintf(snap3name
, 100, "%s@s3_%llu", clone1name
, curval
);
1663 error
= dmu_objset_snapshot(osname
, strchr(snap1name
, '@')+1,
1665 if (error
&& error
!= EEXIST
) {
1666 if (error
== ENOSPC
) {
1667 ztest_record_enospc("dmu_take_snapshot");
1670 fatal(0, "dmu_take_snapshot(%s) = %d", snap1name
, error
);
1673 error
= dmu_objset_open(snap1name
, DMU_OST_OTHER
,
1674 DS_MODE_USER
| DS_MODE_READONLY
, &clone
);
1676 fatal(0, "dmu_open_snapshot(%s) = %d", snap1name
, error
);
1678 error
= dmu_objset_create(clone1name
, DMU_OST_OTHER
, clone
, 0,
1680 dmu_objset_close(clone
);
1682 if (error
== ENOSPC
) {
1683 ztest_record_enospc("dmu_objset_create");
1686 fatal(0, "dmu_objset_create(%s) = %d", clone1name
, error
);
1689 error
= dmu_objset_snapshot(clone1name
, strchr(snap2name
, '@')+1,
1691 if (error
&& error
!= EEXIST
) {
1692 if (error
== ENOSPC
) {
1693 ztest_record_enospc("dmu_take_snapshot");
1696 fatal(0, "dmu_open_snapshot(%s) = %d", snap2name
, error
);
1699 error
= dmu_objset_snapshot(clone1name
, strchr(snap3name
, '@')+1,
1701 if (error
&& error
!= EEXIST
) {
1702 if (error
== ENOSPC
) {
1703 ztest_record_enospc("dmu_take_snapshot");
1706 fatal(0, "dmu_open_snapshot(%s) = %d", snap3name
, error
);
1709 error
= dmu_objset_open(snap3name
, DMU_OST_OTHER
,
1710 DS_MODE_USER
| DS_MODE_READONLY
, &clone
);
1712 fatal(0, "dmu_open_snapshot(%s) = %d", snap3name
, error
);
1714 error
= dmu_objset_create(clone2name
, DMU_OST_OTHER
, clone
, 0,
1716 dmu_objset_close(clone
);
1718 if (error
== ENOSPC
) {
1719 ztest_record_enospc("dmu_objset_create");
1722 fatal(0, "dmu_objset_create(%s) = %d", clone2name
, error
);
1725 error
= dsl_dataset_own(snap1name
, DS_MODE_READONLY
, FTAG
, &ds
);
1727 fatal(0, "dsl_dataset_own(%s) = %d", snap1name
, error
);
1728 error
= dsl_dataset_promote(clone2name
);
1730 fatal(0, "dsl_dataset_promote(%s), %d, not EBUSY", clone2name
,
1732 dsl_dataset_disown(ds
, FTAG
);
1735 ztest_dsl_dataset_cleanup(osname
, curval
);
1737 (void) rw_unlock(&ztest_shared
->zs_name_lock
);
1741 * Verify that dmu_object_{alloc,free} work as expected.
1744 ztest_dmu_object_alloc_free(ztest_args_t
*za
)
1746 objset_t
*os
= za
->za_os
;
1749 uint64_t batchobj
, object
, batchsize
, endoff
, temp
;
1750 int b
, c
, error
, bonuslen
;
1751 dmu_object_info_t
*doi
= &za
->za_doi
;
1752 char osname
[MAXNAMELEN
];
1754 dmu_objset_name(os
, osname
);
1760 * Create a batch object if necessary, and record it in the directory.
1762 VERIFY3U(0, ==, dmu_read(os
, ZTEST_DIROBJ
, za
->za_diroff
,
1763 sizeof (uint64_t), &batchobj
, DMU_READ_PREFETCH
));
1764 if (batchobj
== 0) {
1765 tx
= dmu_tx_create(os
);
1766 dmu_tx_hold_write(tx
, ZTEST_DIROBJ
, za
->za_diroff
,
1768 dmu_tx_hold_bonus(tx
, DMU_NEW_OBJECT
);
1769 error
= dmu_tx_assign(tx
, TXG_WAIT
);
1771 ztest_record_enospc("create a batch object");
1775 batchobj
= dmu_object_alloc(os
, DMU_OT_UINT64_OTHER
, 0,
1776 DMU_OT_NONE
, 0, tx
);
1777 ztest_set_random_blocksize(os
, batchobj
, tx
);
1778 dmu_write(os
, ZTEST_DIROBJ
, za
->za_diroff
,
1779 sizeof (uint64_t), &batchobj
, tx
);
1784 * Destroy the previous batch of objects.
1786 for (b
= 0; b
< batchsize
; b
++) {
1787 VERIFY3U(0, ==, dmu_read(os
, batchobj
, b
* sizeof (uint64_t),
1788 sizeof (uint64_t), &object
, DMU_READ_PREFETCH
));
1792 * Read and validate contents.
1793 * We expect the nth byte of the bonus buffer to be n.
1795 VERIFY(0 == dmu_bonus_hold(os
, object
, FTAG
, &db
));
1798 dmu_object_info_from_db(db
, doi
);
1799 ASSERT(doi
->doi_type
== DMU_OT_UINT64_OTHER
);
1800 ASSERT(doi
->doi_bonus_type
== DMU_OT_PLAIN_OTHER
);
1801 ASSERT3S(doi
->doi_physical_blks
, >=, 0);
1803 bonuslen
= doi
->doi_bonus_size
;
1805 for (c
= 0; c
< bonuslen
; c
++) {
1806 if (((uint8_t *)db
->db_data
)[c
] !=
1807 (uint8_t)(c
+ bonuslen
)) {
1809 "bad bonus: %s, obj %llu, off %d: %u != %u",
1811 ((uint8_t *)db
->db_data
)[c
],
1812 (uint8_t)(c
+ bonuslen
));
1816 dmu_buf_rele(db
, FTAG
);
1820 * We expect the word at endoff to be our object number.
1822 VERIFY(0 == dmu_read(os
, object
, endoff
,
1823 sizeof (uint64_t), &temp
, DMU_READ_PREFETCH
));
1825 if (temp
!= object
) {
1826 fatal(0, "bad data in %s, got %llu, expected %llu",
1827 osname
, temp
, object
);
1831 * Destroy old object and clear batch entry.
1833 tx
= dmu_tx_create(os
);
1834 dmu_tx_hold_write(tx
, batchobj
,
1835 b
* sizeof (uint64_t), sizeof (uint64_t));
1836 dmu_tx_hold_free(tx
, object
, 0, DMU_OBJECT_END
);
1837 error
= dmu_tx_assign(tx
, TXG_WAIT
);
1839 ztest_record_enospc("free object");
1843 error
= dmu_object_free(os
, object
, tx
);
1845 fatal(0, "dmu_object_free('%s', %llu) = %d",
1846 osname
, object
, error
);
1850 dmu_object_set_checksum(os
, batchobj
,
1851 ztest_random_checksum(), tx
);
1852 dmu_object_set_compress(os
, batchobj
,
1853 ztest_random_compress(), tx
);
1855 dmu_write(os
, batchobj
, b
* sizeof (uint64_t),
1856 sizeof (uint64_t), &object
, tx
);
1862 * Before creating the new batch of objects, generate a bunch of churn.
1864 for (b
= ztest_random(100); b
> 0; b
--) {
1865 tx
= dmu_tx_create(os
);
1866 dmu_tx_hold_bonus(tx
, DMU_NEW_OBJECT
);
1867 error
= dmu_tx_assign(tx
, TXG_WAIT
);
1869 ztest_record_enospc("churn objects");
1873 object
= dmu_object_alloc(os
, DMU_OT_UINT64_OTHER
, 0,
1874 DMU_OT_NONE
, 0, tx
);
1875 ztest_set_random_blocksize(os
, object
, tx
);
1876 error
= dmu_object_free(os
, object
, tx
);
1878 fatal(0, "dmu_object_free('%s', %llu) = %d",
1879 osname
, object
, error
);
1885 * Create a new batch of objects with randomly chosen
1886 * blocksizes and record them in the batch directory.
1888 for (b
= 0; b
< batchsize
; b
++) {
1889 uint32_t va_blksize
;
1890 u_longlong_t va_nblocks
;
1892 tx
= dmu_tx_create(os
);
1893 dmu_tx_hold_write(tx
, batchobj
, b
* sizeof (uint64_t),
1895 dmu_tx_hold_bonus(tx
, DMU_NEW_OBJECT
);
1896 dmu_tx_hold_write(tx
, DMU_NEW_OBJECT
, endoff
,
1898 error
= dmu_tx_assign(tx
, TXG_WAIT
);
1900 ztest_record_enospc("create batchobj");
1904 bonuslen
= (int)ztest_random(dmu_bonus_max()) + 1;
1906 object
= dmu_object_alloc(os
, DMU_OT_UINT64_OTHER
, 0,
1907 DMU_OT_PLAIN_OTHER
, bonuslen
, tx
);
1909 ztest_set_random_blocksize(os
, object
, tx
);
1911 dmu_object_set_checksum(os
, object
,
1912 ztest_random_checksum(), tx
);
1913 dmu_object_set_compress(os
, object
,
1914 ztest_random_compress(), tx
);
1916 dmu_write(os
, batchobj
, b
* sizeof (uint64_t),
1917 sizeof (uint64_t), &object
, tx
);
1920 * Write to both the bonus buffer and the regular data.
1922 VERIFY(dmu_bonus_hold(os
, object
, FTAG
, &db
) == 0);
1924 ASSERT3U(bonuslen
, <=, db
->db_size
);
1926 dmu_object_size_from_db(db
, &va_blksize
, &va_nblocks
);
1927 ASSERT3S(va_nblocks
, >=, 0);
1929 dmu_buf_will_dirty(db
, tx
);
1932 * See comments above regarding the contents of
1933 * the bonus buffer and the word at endoff.
1935 for (c
= 0; c
< bonuslen
; c
++)
1936 ((uint8_t *)db
->db_data
)[c
] = (uint8_t)(c
+ bonuslen
);
1938 dmu_buf_rele(db
, FTAG
);
1942 * Write to a large offset to increase indirection.
1944 dmu_write(os
, object
, endoff
, sizeof (uint64_t), &object
, tx
);
1951 * Verify that dmu_{read,write} work as expected.
1953 typedef struct bufwad
{
1959 typedef struct dmu_read_write_dir
{
1960 uint64_t dd_packobj
;
1963 } dmu_read_write_dir_t
;
1966 ztest_dmu_read_write(ztest_args_t
*za
)
1968 objset_t
*os
= za
->za_os
;
1969 dmu_read_write_dir_t dd
;
1971 int i
, freeit
, error
;
1973 bufwad_t
*packbuf
, *bigbuf
, *pack
, *bigH
, *bigT
;
1974 uint64_t packoff
, packsize
, bigoff
, bigsize
;
1975 uint64_t regions
= 997;
1976 uint64_t stride
= 123456789ULL;
1977 uint64_t width
= 40;
1978 int free_percent
= 5;
1981 * This test uses two objects, packobj and bigobj, that are always
1982 * updated together (i.e. in the same tx) so that their contents are
1983 * in sync and can be compared. Their contents relate to each other
1984 * in a simple way: packobj is a dense array of 'bufwad' structures,
1985 * while bigobj is a sparse array of the same bufwads. Specifically,
1986 * for any index n, there are three bufwads that should be identical:
1988 * packobj, at offset n * sizeof (bufwad_t)
1989 * bigobj, at the head of the nth chunk
1990 * bigobj, at the tail of the nth chunk
1992 * The chunk size is arbitrary. It doesn't have to be a power of two,
1993 * and it doesn't have any relation to the object blocksize.
1994 * The only requirement is that it can hold at least two bufwads.
1996 * Normally, we write the bufwad to each of these locations.
1997 * However, free_percent of the time we instead write zeroes to
1998 * packobj and perform a dmu_free_range() on bigobj. By comparing
1999 * bigobj to packobj, we can verify that the DMU is correctly
2000 * tracking which parts of an object are allocated and free,
2001 * and that the contents of the allocated blocks are correct.
2005 * Read the directory info. If it's the first time, set things up.
2007 VERIFY(0 == dmu_read(os
, ZTEST_DIROBJ
, za
->za_diroff
,
2008 sizeof (dd
), &dd
, DMU_READ_PREFETCH
));
2009 if (dd
.dd_chunk
== 0) {
2010 ASSERT(dd
.dd_packobj
== 0);
2011 ASSERT(dd
.dd_bigobj
== 0);
2012 tx
= dmu_tx_create(os
);
2013 dmu_tx_hold_write(tx
, ZTEST_DIROBJ
, za
->za_diroff
, sizeof (dd
));
2014 dmu_tx_hold_bonus(tx
, DMU_NEW_OBJECT
);
2015 error
= dmu_tx_assign(tx
, TXG_WAIT
);
2017 ztest_record_enospc("create r/w directory");
2022 dd
.dd_packobj
= dmu_object_alloc(os
, DMU_OT_UINT64_OTHER
, 0,
2023 DMU_OT_NONE
, 0, tx
);
2024 dd
.dd_bigobj
= dmu_object_alloc(os
, DMU_OT_UINT64_OTHER
, 0,
2025 DMU_OT_NONE
, 0, tx
);
2026 dd
.dd_chunk
= (1000 + ztest_random(1000)) * sizeof (uint64_t);
2028 ztest_set_random_blocksize(os
, dd
.dd_packobj
, tx
);
2029 ztest_set_random_blocksize(os
, dd
.dd_bigobj
, tx
);
2031 dmu_write(os
, ZTEST_DIROBJ
, za
->za_diroff
, sizeof (dd
), &dd
,
2037 * Prefetch a random chunk of the big object.
2038 * Our aim here is to get some async reads in flight
2039 * for blocks that we may free below; the DMU should
2040 * handle this race correctly.
2042 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
2043 s
= 1 + ztest_random(2 * width
- 1);
2044 dmu_prefetch(os
, dd
.dd_bigobj
, n
* dd
.dd_chunk
, s
* dd
.dd_chunk
);
2047 * Pick a random index and compute the offsets into packobj and bigobj.
2049 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
2050 s
= 1 + ztest_random(width
- 1);
2052 packoff
= n
* sizeof (bufwad_t
);
2053 packsize
= s
* sizeof (bufwad_t
);
2055 bigoff
= n
* dd
.dd_chunk
;
2056 bigsize
= s
* dd
.dd_chunk
;
2058 packbuf
= umem_alloc(packsize
, UMEM_NOFAIL
);
2059 bigbuf
= umem_alloc(bigsize
, UMEM_NOFAIL
);
2062 * free_percent of the time, free a range of bigobj rather than
2065 freeit
= (ztest_random(100) < free_percent
);
2068 * Read the current contents of our objects.
2070 error
= dmu_read(os
, dd
.dd_packobj
, packoff
, packsize
, packbuf
,
2072 ASSERT3U(error
, ==, 0);
2073 error
= dmu_read(os
, dd
.dd_bigobj
, bigoff
, bigsize
, bigbuf
,
2075 ASSERT3U(error
, ==, 0);
2078 * Get a tx for the mods to both packobj and bigobj.
2080 tx
= dmu_tx_create(os
);
2082 dmu_tx_hold_write(tx
, dd
.dd_packobj
, packoff
, packsize
);
2085 dmu_tx_hold_free(tx
, dd
.dd_bigobj
, bigoff
, bigsize
);
2087 dmu_tx_hold_write(tx
, dd
.dd_bigobj
, bigoff
, bigsize
);
2089 error
= dmu_tx_assign(tx
, TXG_WAIT
);
2092 ztest_record_enospc("dmu r/w range");
2094 umem_free(packbuf
, packsize
);
2095 umem_free(bigbuf
, bigsize
);
2099 txg
= dmu_tx_get_txg(tx
);
2102 * For each index from n to n + s, verify that the existing bufwad
2103 * in packobj matches the bufwads at the head and tail of the
2104 * corresponding chunk in bigobj. Then update all three bufwads
2105 * with the new values we want to write out.
2107 for (i
= 0; i
< s
; i
++) {
2109 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
2111 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* dd
.dd_chunk
);
2113 bigT
= (bufwad_t
*)((char *)bigH
+ dd
.dd_chunk
) - 1;
2115 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
2116 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
2118 if (pack
->bw_txg
> txg
)
2119 fatal(0, "future leak: got %llx, open txg is %llx",
2122 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
2123 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
2124 pack
->bw_index
, n
, i
);
2126 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
2127 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
2129 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
2130 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
2133 bzero(pack
, sizeof (bufwad_t
));
2135 pack
->bw_index
= n
+ i
;
2137 pack
->bw_data
= 1 + ztest_random(-2ULL);
2144 * We've verified all the old bufwads, and made new ones.
2145 * Now write them out.
2147 dmu_write(os
, dd
.dd_packobj
, packoff
, packsize
, packbuf
, tx
);
2150 if (zopt_verbose
>= 6) {
2151 (void) printf("freeing offset %llx size %llx"
2153 (u_longlong_t
)bigoff
,
2154 (u_longlong_t
)bigsize
,
2157 VERIFY(0 == dmu_free_range(os
, dd
.dd_bigobj
, bigoff
,
2160 if (zopt_verbose
>= 6) {
2161 (void) printf("writing offset %llx size %llx"
2163 (u_longlong_t
)bigoff
,
2164 (u_longlong_t
)bigsize
,
2167 dmu_write(os
, dd
.dd_bigobj
, bigoff
, bigsize
, bigbuf
, tx
);
2173 * Sanity check the stuff we just wrote.
2176 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
2177 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
2179 VERIFY(0 == dmu_read(os
, dd
.dd_packobj
, packoff
,
2180 packsize
, packcheck
, DMU_READ_PREFETCH
));
2181 VERIFY(0 == dmu_read(os
, dd
.dd_bigobj
, bigoff
,
2182 bigsize
, bigcheck
, DMU_READ_PREFETCH
));
2184 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
2185 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
2187 umem_free(packcheck
, packsize
);
2188 umem_free(bigcheck
, bigsize
);
2191 umem_free(packbuf
, packsize
);
2192 umem_free(bigbuf
, bigsize
);
2196 compare_and_update_pbbufs(uint64_t s
, bufwad_t
*packbuf
, bufwad_t
*bigbuf
,
2197 uint64_t bigsize
, uint64_t n
, dmu_read_write_dir_t dd
, uint64_t txg
)
2205 * For each index from n to n + s, verify that the existing bufwad
2206 * in packobj matches the bufwads at the head and tail of the
2207 * corresponding chunk in bigobj. Then update all three bufwads
2208 * with the new values we want to write out.
2210 for (i
= 0; i
< s
; i
++) {
2212 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
2214 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* dd
.dd_chunk
);
2216 bigT
= (bufwad_t
*)((char *)bigH
+ dd
.dd_chunk
) - 1;
2218 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
2219 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
2221 if (pack
->bw_txg
> txg
)
2222 fatal(0, "future leak: got %llx, open txg is %llx",
2225 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
2226 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
2227 pack
->bw_index
, n
, i
);
2229 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
2230 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
2232 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
2233 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
2235 pack
->bw_index
= n
+ i
;
2237 pack
->bw_data
= 1 + ztest_random(-2ULL);
2245 ztest_dmu_read_write_zcopy(ztest_args_t
*za
)
2247 objset_t
*os
= za
->za_os
;
2248 dmu_read_write_dir_t dd
;
2253 bufwad_t
*packbuf
, *bigbuf
;
2254 uint64_t packoff
, packsize
, bigoff
, bigsize
;
2255 uint64_t regions
= 997;
2256 uint64_t stride
= 123456789ULL;
2258 dmu_buf_t
*bonus_db
;
2259 arc_buf_t
**bigbuf_arcbufs
;
2260 dmu_object_info_t
*doi
= &za
->za_doi
;
2263 * This test uses two objects, packobj and bigobj, that are always
2264 * updated together (i.e. in the same tx) so that their contents are
2265 * in sync and can be compared. Their contents relate to each other
2266 * in a simple way: packobj is a dense array of 'bufwad' structures,
2267 * while bigobj is a sparse array of the same bufwads. Specifically,
2268 * for any index n, there are three bufwads that should be identical:
2270 * packobj, at offset n * sizeof (bufwad_t)
2271 * bigobj, at the head of the nth chunk
2272 * bigobj, at the tail of the nth chunk
2274 * The chunk size is set equal to bigobj block size so that
2275 * dmu_assign_arcbuf() can be tested for object updates.
2279 * Read the directory info. If it's the first time, set things up.
2281 VERIFY(0 == dmu_read(os
, ZTEST_DIROBJ
, za
->za_diroff
,
2282 sizeof (dd
), &dd
, DMU_READ_PREFETCH
));
2283 if (dd
.dd_chunk
== 0) {
2284 ASSERT(dd
.dd_packobj
== 0);
2285 ASSERT(dd
.dd_bigobj
== 0);
2286 tx
= dmu_tx_create(os
);
2287 dmu_tx_hold_write(tx
, ZTEST_DIROBJ
, za
->za_diroff
, sizeof (dd
));
2288 dmu_tx_hold_bonus(tx
, DMU_NEW_OBJECT
);
2289 error
= dmu_tx_assign(tx
, TXG_WAIT
);
2291 ztest_record_enospc("create r/w directory");
2296 dd
.dd_packobj
= dmu_object_alloc(os
, DMU_OT_UINT64_OTHER
, 0,
2297 DMU_OT_NONE
, 0, tx
);
2298 dd
.dd_bigobj
= dmu_object_alloc(os
, DMU_OT_UINT64_OTHER
, 0,
2299 DMU_OT_NONE
, 0, tx
);
2300 ztest_set_random_blocksize(os
, dd
.dd_packobj
, tx
);
2301 ztest_set_random_blocksize(os
, dd
.dd_bigobj
, tx
);
2303 VERIFY(dmu_object_info(os
, dd
.dd_bigobj
, doi
) == 0);
2304 ASSERT(doi
->doi_data_block_size
>= 2 * sizeof (bufwad_t
));
2305 ASSERT(ISP2(doi
->doi_data_block_size
));
2306 dd
.dd_chunk
= doi
->doi_data_block_size
;
2308 dmu_write(os
, ZTEST_DIROBJ
, za
->za_diroff
, sizeof (dd
), &dd
,
2312 VERIFY(dmu_object_info(os
, dd
.dd_bigobj
, doi
) == 0);
2313 VERIFY(ISP2(doi
->doi_data_block_size
));
2314 VERIFY(dd
.dd_chunk
== doi
->doi_data_block_size
);
2315 VERIFY(dd
.dd_chunk
>= 2 * sizeof (bufwad_t
));
2319 * Pick a random index and compute the offsets into packobj and bigobj.
2321 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
2322 s
= 1 + ztest_random(width
- 1);
2324 packoff
= n
* sizeof (bufwad_t
);
2325 packsize
= s
* sizeof (bufwad_t
);
2327 bigoff
= n
* dd
.dd_chunk
;
2328 bigsize
= s
* dd
.dd_chunk
;
2330 packbuf
= umem_zalloc(packsize
, UMEM_NOFAIL
);
2331 bigbuf
= umem_zalloc(bigsize
, UMEM_NOFAIL
);
2333 VERIFY(dmu_bonus_hold(os
, dd
.dd_bigobj
, FTAG
, &bonus_db
) == 0);
2335 bigbuf_arcbufs
= umem_zalloc(2 * s
* sizeof (arc_buf_t
*), UMEM_NOFAIL
);
2338 * Iteration 0 test zcopy for DB_UNCACHED dbufs.
2339 * Iteration 1 test zcopy to already referenced dbufs.
2340 * Iteration 2 test zcopy to dirty dbuf in the same txg.
2341 * Iteration 3 test zcopy to dbuf dirty in previous txg.
2342 * Iteration 4 test zcopy when dbuf is no longer dirty.
2343 * Iteration 5 test zcopy when it can't be done.
2344 * Iteration 6 one more zcopy write.
2346 for (i
= 0; i
< 7; i
++) {
2351 * In iteration 5 (i == 5) use arcbufs
2352 * that don't match bigobj blksz to test
2353 * dmu_assign_arcbuf() when it can't directly
2354 * assign an arcbuf to a dbuf.
2356 for (j
= 0; j
< s
; j
++) {
2359 dmu_request_arcbuf(bonus_db
,
2362 bigbuf_arcbufs
[2 * j
] =
2363 dmu_request_arcbuf(bonus_db
,
2365 bigbuf_arcbufs
[2 * j
+ 1] =
2366 dmu_request_arcbuf(bonus_db
,
2372 * Get a tx for the mods to both packobj and bigobj.
2374 tx
= dmu_tx_create(os
);
2376 dmu_tx_hold_write(tx
, dd
.dd_packobj
, packoff
, packsize
);
2377 dmu_tx_hold_write(tx
, dd
.dd_bigobj
, bigoff
, bigsize
);
2379 if (ztest_random(100) == 0) {
2382 error
= dmu_tx_assign(tx
, TXG_WAIT
);
2387 ztest_record_enospc("dmu r/w range");
2390 umem_free(packbuf
, packsize
);
2391 umem_free(bigbuf
, bigsize
);
2392 for (j
= 0; j
< s
; j
++) {
2394 dmu_return_arcbuf(bigbuf_arcbufs
[j
]);
2397 bigbuf_arcbufs
[2 * j
]);
2399 bigbuf_arcbufs
[2 * j
+ 1]);
2402 umem_free(bigbuf_arcbufs
, 2 * s
* sizeof (arc_buf_t
*));
2403 dmu_buf_rele(bonus_db
, FTAG
);
2407 txg
= dmu_tx_get_txg(tx
);
2410 * 50% of the time don't read objects in the 1st iteration to
2411 * test dmu_assign_arcbuf() for the case when there're no
2412 * existing dbufs for the specified offsets.
2414 if (i
!= 0 || ztest_random(2) != 0) {
2415 error
= dmu_read(os
, dd
.dd_packobj
, packoff
,
2416 packsize
, packbuf
, DMU_READ_PREFETCH
);
2417 ASSERT3U(error
, ==, 0);
2418 error
= dmu_read(os
, dd
.dd_bigobj
, bigoff
, bigsize
,
2419 bigbuf
, DMU_READ_PREFETCH
);
2420 ASSERT3U(error
, ==, 0);
2422 compare_and_update_pbbufs(s
, packbuf
, bigbuf
, bigsize
,
2426 * We've verified all the old bufwads, and made new ones.
2427 * Now write them out.
2429 dmu_write(os
, dd
.dd_packobj
, packoff
, packsize
, packbuf
, tx
);
2430 if (zopt_verbose
>= 6) {
2431 (void) printf("writing offset %llx size %llx"
2433 (u_longlong_t
)bigoff
,
2434 (u_longlong_t
)bigsize
,
2437 for (off
= bigoff
, j
= 0; j
< s
; j
++, off
+= dd
.dd_chunk
) {
2440 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
),
2441 bigbuf_arcbufs
[j
]->b_data
, dd
.dd_chunk
);
2443 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
),
2444 bigbuf_arcbufs
[2 * j
]->b_data
,
2446 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
) +
2448 bigbuf_arcbufs
[2 * j
+ 1]->b_data
,
2453 VERIFY(dmu_buf_hold(os
, dd
.dd_bigobj
, off
,
2457 dmu_assign_arcbuf(bonus_db
, off
,
2458 bigbuf_arcbufs
[j
], tx
);
2460 dmu_assign_arcbuf(bonus_db
, off
,
2461 bigbuf_arcbufs
[2 * j
], tx
);
2462 dmu_assign_arcbuf(bonus_db
,
2463 off
+ dd
.dd_chunk
/ 2,
2464 bigbuf_arcbufs
[2 * j
+ 1], tx
);
2467 dmu_buf_rele(dbt
, FTAG
);
2473 * Sanity check the stuff we just wrote.
2476 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
2477 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
2479 VERIFY(0 == dmu_read(os
, dd
.dd_packobj
, packoff
,
2480 packsize
, packcheck
, DMU_READ_PREFETCH
));
2481 VERIFY(0 == dmu_read(os
, dd
.dd_bigobj
, bigoff
,
2482 bigsize
, bigcheck
, DMU_READ_PREFETCH
));
2484 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
2485 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
2487 umem_free(packcheck
, packsize
);
2488 umem_free(bigcheck
, bigsize
);
2491 txg_wait_open(dmu_objset_pool(os
), 0);
2492 } else if (i
== 3) {
2493 txg_wait_synced(dmu_objset_pool(os
), 0);
2497 dmu_buf_rele(bonus_db
, FTAG
);
2498 umem_free(packbuf
, packsize
);
2499 umem_free(bigbuf
, bigsize
);
2500 umem_free(bigbuf_arcbufs
, 2 * s
* sizeof (arc_buf_t
*));
2504 ztest_dmu_check_future_leak(ztest_args_t
*za
)
2506 objset_t
*os
= za
->za_os
;
2508 ztest_block_tag_t
*bt
;
2509 dmu_object_info_t
*doi
= &za
->za_doi
;
2512 * Make sure that, if there is a write record in the bonus buffer
2513 * of the ZTEST_DIROBJ, that the txg for this record is <= the
2514 * last synced txg of the pool.
2516 VERIFY(dmu_bonus_hold(os
, ZTEST_DIROBJ
, FTAG
, &db
) == 0);
2518 VERIFY(dmu_object_info(os
, ZTEST_DIROBJ
, doi
) == 0);
2519 ASSERT3U(doi
->doi_bonus_size
, >=, sizeof (*bt
));
2520 ASSERT3U(doi
->doi_bonus_size
, <=, db
->db_size
);
2521 ASSERT3U(doi
->doi_bonus_size
% sizeof (*bt
), ==, 0);
2522 bt
= (void *)((char *)db
->db_data
+ doi
->doi_bonus_size
- sizeof (*bt
));
2523 if (bt
->bt_objset
!= 0) {
2524 ASSERT3U(bt
->bt_objset
, ==, dmu_objset_id(os
));
2525 ASSERT3U(bt
->bt_object
, ==, ZTEST_DIROBJ
);
2526 ASSERT3U(bt
->bt_offset
, ==, -1ULL);
2527 ASSERT3U(bt
->bt_txg
, <, spa_first_txg(za
->za_spa
));
2529 dmu_buf_rele(db
, FTAG
);
2534 ztest_dmu_write_parallel(ztest_args_t
*za
)
2536 objset_t
*os
= za
->za_os
;
2537 ztest_block_tag_t
*rbt
= &za
->za_rbt
;
2538 ztest_block_tag_t
*wbt
= &za
->za_wbt
;
2539 const size_t btsize
= sizeof (ztest_block_tag_t
);
2542 int bs
= ZTEST_DIROBJ_BLOCKSIZE
;
2544 uint64_t off
, txg
, txg_how
;
2546 char osname
[MAXNAMELEN
];
2547 char iobuf
[SPA_MAXBLOCKSIZE
];
2548 blkptr_t blk
= { 0 };
2551 dmu_tx_t
*tx
= dmu_tx_create(os
);
2552 dmu_buf_t
*bonus_db
;
2553 arc_buf_t
*abuf
= NULL
;
2555 dmu_objset_name(os
, osname
);
2558 * Have multiple threads write to large offsets in ZTEST_DIROBJ
2559 * to verify that having multiple threads writing to the same object
2560 * in parallel doesn't cause any trouble.
2562 if (ztest_random(4) == 0) {
2564 * Do the bonus buffer instead of a regular block.
2565 * We need a lock to serialize resize vs. others,
2566 * so we hash on the objset ID.
2568 b
= dmu_objset_id(os
) % ZTEST_SYNC_LOCKS
;
2570 dmu_tx_hold_bonus(tx
, ZTEST_DIROBJ
);
2572 b
= ztest_random(ZTEST_SYNC_LOCKS
);
2573 off
= za
->za_diroff_shared
+ (b
<< SPA_MAXBLOCKSHIFT
);
2574 if (ztest_random(4) == 0) {
2576 dmu_tx_hold_free(tx
, ZTEST_DIROBJ
, off
, bs
);
2578 dmu_tx_hold_write(tx
, ZTEST_DIROBJ
, off
, bs
);
2582 if (off
!= -1ULL && P2PHASE(off
, bs
) == 0 && !do_free
&&
2583 ztest_random(8) == 0) {
2584 VERIFY(dmu_bonus_hold(os
, ZTEST_DIROBJ
, FTAG
, &bonus_db
) == 0);
2585 abuf
= dmu_request_arcbuf(bonus_db
, bs
);
2588 txg_how
= ztest_random(2) == 0 ? TXG_WAIT
: TXG_NOWAIT
;
2589 error
= dmu_tx_assign(tx
, txg_how
);
2591 if (error
== ERESTART
) {
2592 ASSERT(txg_how
== TXG_NOWAIT
);
2595 ztest_record_enospc("dmu write parallel");
2599 dmu_return_arcbuf(abuf
);
2600 dmu_buf_rele(bonus_db
, FTAG
);
2604 txg
= dmu_tx_get_txg(tx
);
2606 lp
= &ztest_shared
->zs_sync_lock
[b
];
2607 (void) mutex_lock(lp
);
2609 wbt
->bt_objset
= dmu_objset_id(os
);
2610 wbt
->bt_object
= ZTEST_DIROBJ
;
2611 wbt
->bt_offset
= off
;
2613 wbt
->bt_thread
= za
->za_instance
;
2614 wbt
->bt_seq
= ztest_shared
->zs_seq
[b
]++; /* protected by lp */
2617 * Occasionally, write an all-zero block to test the behavior
2618 * of blocks that compress into holes.
2620 if (off
!= -1ULL && ztest_random(8) == 0)
2624 dmu_object_info_t
*doi
= &za
->za_doi
;
2627 VERIFY(dmu_bonus_hold(os
, ZTEST_DIROBJ
, FTAG
, &db
) == 0);
2629 dmu_object_info_from_db(db
, doi
);
2630 ASSERT3U(doi
->doi_bonus_size
, <=, db
->db_size
);
2631 ASSERT3U(doi
->doi_bonus_size
, >=, btsize
);
2632 ASSERT3U(doi
->doi_bonus_size
% btsize
, ==, 0);
2633 dboff
= (char *)db
->db_data
+ doi
->doi_bonus_size
- btsize
;
2634 bcopy(dboff
, rbt
, btsize
);
2635 if (rbt
->bt_objset
!= 0) {
2636 ASSERT3U(rbt
->bt_objset
, ==, wbt
->bt_objset
);
2637 ASSERT3U(rbt
->bt_object
, ==, wbt
->bt_object
);
2638 ASSERT3U(rbt
->bt_offset
, ==, wbt
->bt_offset
);
2639 ASSERT3U(rbt
->bt_txg
, <=, wbt
->bt_txg
);
2641 if (ztest_random(10) == 0) {
2642 int newsize
= (ztest_random(db
->db_size
/
2643 btsize
) + 1) * btsize
;
2645 ASSERT3U(newsize
, >=, btsize
);
2646 ASSERT3U(newsize
, <=, db
->db_size
);
2647 VERIFY3U(dmu_set_bonus(db
, newsize
, tx
), ==, 0);
2648 dboff
= (char *)db
->db_data
+ newsize
- btsize
;
2650 dmu_buf_will_dirty(db
, tx
);
2651 bcopy(wbt
, dboff
, btsize
);
2652 dmu_buf_rele(db
, FTAG
);
2654 } else if (do_free
) {
2655 VERIFY(dmu_free_range(os
, ZTEST_DIROBJ
, off
, bs
, tx
) == 0);
2656 } else if (abuf
== NULL
) {
2657 dmu_write(os
, ZTEST_DIROBJ
, off
, btsize
, wbt
, tx
);
2659 bcopy(wbt
, abuf
->b_data
, btsize
);
2660 dmu_assign_arcbuf(bonus_db
, off
, abuf
, tx
);
2661 dmu_buf_rele(bonus_db
, FTAG
);
2664 (void) mutex_unlock(lp
);
2666 if (ztest_random(1000) == 0)
2667 (void) poll(NULL
, 0, 1); /* open dn_notxholds window */
2671 if (ztest_random(10000) == 0)
2672 txg_wait_synced(dmu_objset_pool(os
), txg
);
2674 if (off
== -1ULL || do_free
)
2677 if (ztest_random(2) != 0)
2681 * dmu_sync() the block we just wrote.
2683 (void) mutex_lock(lp
);
2685 blkoff
= P2ALIGN_TYPED(off
, bs
, uint64_t);
2686 error
= dmu_buf_hold(os
, ZTEST_DIROBJ
, blkoff
, FTAG
, &db
);
2689 (void) mutex_unlock(lp
);
2692 blkoff
= off
- blkoff
;
2693 error
= dmu_sync(NULL
, db
, &blk
, txg
, NULL
, NULL
);
2694 dmu_buf_rele(db
, FTAG
);
2698 (void) mutex_unlock(lp
);
2702 if (blk
.blk_birth
== 0) { /* concurrent free */
2703 (void) mutex_unlock(lp
);
2707 txg_suspend(dmu_objset_pool(os
));
2709 (void) mutex_unlock(lp
);
2711 ASSERT(blk
.blk_fill
== 1);
2712 ASSERT3U(BP_GET_TYPE(&blk
), ==, DMU_OT_UINT64_OTHER
);
2713 ASSERT3U(BP_GET_LEVEL(&blk
), ==, 0);
2714 ASSERT3U(BP_GET_LSIZE(&blk
), ==, bs
);
2717 * Read the block that dmu_sync() returned to make sure its contents
2718 * match what we wrote. We do this while still txg_suspend()ed
2719 * to ensure that the block can't be reused before we read it.
2721 zb
.zb_objset
= dmu_objset_id(os
);
2722 zb
.zb_object
= ZTEST_DIROBJ
;
2724 zb
.zb_blkid
= off
/ bs
;
2725 error
= zio_wait(zio_read(NULL
, za
->za_spa
, &blk
, iobuf
, bs
,
2726 NULL
, NULL
, ZIO_PRIORITY_SYNC_READ
, ZIO_FLAG_MUSTSUCCEED
, &zb
));
2727 ASSERT3U(error
, ==, 0);
2729 txg_resume(dmu_objset_pool(os
));
2731 bcopy(&iobuf
[blkoff
], rbt
, btsize
);
2733 if (rbt
->bt_objset
== 0) /* concurrent free */
2736 if (wbt
->bt_objset
== 0) /* all-zero overwrite */
2739 ASSERT3U(rbt
->bt_objset
, ==, wbt
->bt_objset
);
2740 ASSERT3U(rbt
->bt_object
, ==, wbt
->bt_object
);
2741 ASSERT3U(rbt
->bt_offset
, ==, wbt
->bt_offset
);
2744 * The semantic of dmu_sync() is that we always push the most recent
2745 * version of the data, so in the face of concurrent updates we may
2746 * see a newer version of the block. That's OK.
2748 ASSERT3U(rbt
->bt_txg
, >=, wbt
->bt_txg
);
2749 if (rbt
->bt_thread
== wbt
->bt_thread
)
2750 ASSERT3U(rbt
->bt_seq
, ==, wbt
->bt_seq
);
2752 ASSERT3U(rbt
->bt_seq
, >, wbt
->bt_seq
);
2756 * Verify that zap_{create,destroy,add,remove,update} work as expected.
2758 #define ZTEST_ZAP_MIN_INTS 1
2759 #define ZTEST_ZAP_MAX_INTS 4
2760 #define ZTEST_ZAP_MAX_PROPS 1000
2763 ztest_zap(ztest_args_t
*za
)
2765 objset_t
*os
= za
->za_os
;
2767 uint64_t txg
, last_txg
;
2768 uint64_t value
[ZTEST_ZAP_MAX_INTS
];
2769 uint64_t zl_ints
, zl_intsize
, prop
;
2772 char propname
[100], txgname
[100];
2774 char osname
[MAXNAMELEN
];
2775 char *hc
[2] = { "s.acl.h", ".s.open.h.hyLZlg" };
2777 dmu_objset_name(os
, osname
);
2780 * Create a new object if necessary, and record it in the directory.
2782 VERIFY(0 == dmu_read(os
, ZTEST_DIROBJ
, za
->za_diroff
,
2783 sizeof (uint64_t), &object
, DMU_READ_PREFETCH
));
2786 tx
= dmu_tx_create(os
);
2787 dmu_tx_hold_write(tx
, ZTEST_DIROBJ
, za
->za_diroff
,
2789 dmu_tx_hold_zap(tx
, DMU_NEW_OBJECT
, TRUE
, NULL
);
2790 error
= dmu_tx_assign(tx
, TXG_WAIT
);
2792 ztest_record_enospc("create zap test obj");
2796 object
= zap_create(os
, DMU_OT_ZAP_OTHER
, DMU_OT_NONE
, 0, tx
);
2798 fatal(0, "zap_create('%s', %llu) = %d",
2799 osname
, object
, error
);
2801 ASSERT(object
!= 0);
2802 dmu_write(os
, ZTEST_DIROBJ
, za
->za_diroff
,
2803 sizeof (uint64_t), &object
, tx
);
2805 * Generate a known hash collision, and verify that
2806 * we can lookup and remove both entries.
2808 for (i
= 0; i
< 2; i
++) {
2810 error
= zap_add(os
, object
, hc
[i
], sizeof (uint64_t),
2812 ASSERT3U(error
, ==, 0);
2814 for (i
= 0; i
< 2; i
++) {
2815 error
= zap_add(os
, object
, hc
[i
], sizeof (uint64_t),
2817 ASSERT3U(error
, ==, EEXIST
);
2818 error
= zap_length(os
, object
, hc
[i
],
2819 &zl_intsize
, &zl_ints
);
2820 ASSERT3U(error
, ==, 0);
2821 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
2822 ASSERT3U(zl_ints
, ==, 1);
2824 for (i
= 0; i
< 2; i
++) {
2825 error
= zap_remove(os
, object
, hc
[i
], tx
);
2826 ASSERT3U(error
, ==, 0);
2832 ints
= MAX(ZTEST_ZAP_MIN_INTS
, object
% ZTEST_ZAP_MAX_INTS
);
2834 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
2835 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
2836 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
2837 bzero(value
, sizeof (value
));
2841 * If these zap entries already exist, validate their contents.
2843 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
2845 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
2846 ASSERT3U(zl_ints
, ==, 1);
2848 VERIFY(zap_lookup(os
, object
, txgname
, zl_intsize
,
2849 zl_ints
, &last_txg
) == 0);
2851 VERIFY(zap_length(os
, object
, propname
, &zl_intsize
,
2854 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
2855 ASSERT3U(zl_ints
, ==, ints
);
2857 VERIFY(zap_lookup(os
, object
, propname
, zl_intsize
,
2858 zl_ints
, value
) == 0);
2860 for (i
= 0; i
< ints
; i
++) {
2861 ASSERT3U(value
[i
], ==, last_txg
+ object
+ i
);
2864 ASSERT3U(error
, ==, ENOENT
);
2868 * Atomically update two entries in our zap object.
2869 * The first is named txg_%llu, and contains the txg
2870 * in which the property was last updated. The second
2871 * is named prop_%llu, and the nth element of its value
2872 * should be txg + object + n.
2874 tx
= dmu_tx_create(os
);
2875 dmu_tx_hold_zap(tx
, object
, TRUE
, NULL
);
2876 error
= dmu_tx_assign(tx
, TXG_WAIT
);
2878 ztest_record_enospc("create zap entry");
2882 txg
= dmu_tx_get_txg(tx
);
2885 fatal(0, "zap future leak: old %llu new %llu", last_txg
, txg
);
2887 for (i
= 0; i
< ints
; i
++)
2888 value
[i
] = txg
+ object
+ i
;
2890 error
= zap_update(os
, object
, txgname
, sizeof (uint64_t), 1, &txg
, tx
);
2892 fatal(0, "zap_update('%s', %llu, '%s') = %d",
2893 osname
, object
, txgname
, error
);
2895 error
= zap_update(os
, object
, propname
, sizeof (uint64_t),
2898 fatal(0, "zap_update('%s', %llu, '%s') = %d",
2899 osname
, object
, propname
, error
);
2904 * Remove a random pair of entries.
2906 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
2907 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
2908 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
2910 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
2912 if (error
== ENOENT
)
2915 ASSERT3U(error
, ==, 0);
2917 tx
= dmu_tx_create(os
);
2918 dmu_tx_hold_zap(tx
, object
, TRUE
, NULL
);
2919 error
= dmu_tx_assign(tx
, TXG_WAIT
);
2921 ztest_record_enospc("remove zap entry");
2925 error
= zap_remove(os
, object
, txgname
, tx
);
2927 fatal(0, "zap_remove('%s', %llu, '%s') = %d",
2928 osname
, object
, txgname
, error
);
2930 error
= zap_remove(os
, object
, propname
, tx
);
2932 fatal(0, "zap_remove('%s', %llu, '%s') = %d",
2933 osname
, object
, propname
, error
);
2938 * Once in a while, destroy the object.
2940 if (ztest_random(1000) != 0)
2943 tx
= dmu_tx_create(os
);
2944 dmu_tx_hold_write(tx
, ZTEST_DIROBJ
, za
->za_diroff
, sizeof (uint64_t));
2945 dmu_tx_hold_free(tx
, object
, 0, DMU_OBJECT_END
);
2946 error
= dmu_tx_assign(tx
, TXG_WAIT
);
2948 ztest_record_enospc("destroy zap object");
2952 error
= zap_destroy(os
, object
, tx
);
2954 fatal(0, "zap_destroy('%s', %llu) = %d",
2955 osname
, object
, error
);
2957 dmu_write(os
, ZTEST_DIROBJ
, za
->za_diroff
, sizeof (uint64_t),
2963 ztest_zap_parallel(ztest_args_t
*za
)
2965 objset_t
*os
= za
->za_os
;
2966 uint64_t txg
, object
, count
, wsize
, wc
, zl_wsize
, zl_wc
;
2968 int i
, namelen
, error
;
2969 char name
[20], string_value
[20];
2973 * Generate a random name of the form 'xxx.....' where each
2974 * x is a random printable character and the dots are dots.
2975 * There are 94 such characters, and the name length goes from
2976 * 6 to 20, so there are 94^3 * 15 = 12,458,760 possible names.
2978 namelen
= ztest_random(sizeof (name
) - 5) + 5 + 1;
2980 for (i
= 0; i
< 3; i
++)
2981 name
[i
] = '!' + ztest_random('~' - '!' + 1);
2982 for (; i
< namelen
- 1; i
++)
2986 if (ztest_random(2) == 0)
2987 object
= ZTEST_MICROZAP_OBJ
;
2989 object
= ZTEST_FATZAP_OBJ
;
2991 if ((namelen
& 1) || object
== ZTEST_MICROZAP_OBJ
) {
2992 wsize
= sizeof (txg
);
2998 data
= string_value
;
3002 VERIFY(zap_count(os
, object
, &count
) == 0);
3003 ASSERT(count
!= -1ULL);
3006 * Select an operation: length, lookup, add, update, remove.
3008 i
= ztest_random(5);
3011 tx
= dmu_tx_create(os
);
3012 dmu_tx_hold_zap(tx
, object
, TRUE
, NULL
);
3013 error
= dmu_tx_assign(tx
, TXG_WAIT
);
3015 ztest_record_enospc("zap parallel");
3019 txg
= dmu_tx_get_txg(tx
);
3020 bcopy(name
, string_value
, namelen
);
3024 bzero(string_value
, namelen
);
3030 error
= zap_length(os
, object
, name
, &zl_wsize
, &zl_wc
);
3032 ASSERT3U(wsize
, ==, zl_wsize
);
3033 ASSERT3U(wc
, ==, zl_wc
);
3035 ASSERT3U(error
, ==, ENOENT
);
3040 error
= zap_lookup(os
, object
, name
, wsize
, wc
, data
);
3042 if (data
== string_value
&&
3043 bcmp(name
, data
, namelen
) != 0)
3044 fatal(0, "name '%s' != val '%s' len %d",
3045 name
, data
, namelen
);
3047 ASSERT3U(error
, ==, ENOENT
);
3052 error
= zap_add(os
, object
, name
, wsize
, wc
, data
, tx
);
3053 ASSERT(error
== 0 || error
== EEXIST
);
3057 VERIFY(zap_update(os
, object
, name
, wsize
, wc
, data
, tx
) == 0);
3061 error
= zap_remove(os
, object
, name
, tx
);
3062 ASSERT(error
== 0 || error
== ENOENT
);
3071 ztest_dsl_prop_get_set(ztest_args_t
*za
)
3073 objset_t
*os
= za
->za_os
;
3076 const char *prop
, *valname
;
3077 char setpoint
[MAXPATHLEN
];
3078 char osname
[MAXNAMELEN
];
3081 (void) rw_rdlock(&ztest_shared
->zs_name_lock
);
3083 dmu_objset_name(os
, osname
);
3085 for (i
= 0; i
< 2; i
++) {
3088 value
= ztest_random_checksum();
3089 inherit
= (value
== ZIO_CHECKSUM_INHERIT
);
3091 prop
= "compression";
3092 value
= ztest_random_compress();
3093 inherit
= (value
== ZIO_COMPRESS_INHERIT
);
3096 error
= dsl_prop_set(osname
, prop
, sizeof (value
),
3099 if (error
== ENOSPC
) {
3100 ztest_record_enospc("dsl_prop_set");
3104 ASSERT3U(error
, ==, 0);
3106 VERIFY3U(dsl_prop_get(osname
, prop
, sizeof (value
),
3107 1, &value
, setpoint
), ==, 0);
3110 valname
= zio_checksum_table
[value
].ci_name
;
3112 valname
= zio_compress_table
[value
].ci_name
;
3114 if (zopt_verbose
>= 6) {
3115 (void) printf("%s %s = %s for '%s'\n",
3116 osname
, prop
, valname
, setpoint
);
3120 (void) rw_unlock(&ztest_shared
->zs_name_lock
);
3124 * Inject random faults into the on-disk data.
3127 ztest_fault_inject(ztest_args_t
*za
)
3131 uint64_t leaves
= MAX(zopt_mirrors
, 1) * zopt_raidz
;
3132 uint64_t bad
= 0x1990c0ffeedecade;
3134 char path0
[MAXPATHLEN
];
3135 char pathrand
[MAXPATHLEN
];
3137 spa_t
*spa
= za
->za_spa
;
3138 int bshift
= SPA_MAXBLOCKSHIFT
+ 2; /* don't scrog all labels */
3140 int maxfaults
= zopt_maxfaults
;
3144 ASSERT(leaves
>= 1);
3147 * We need SCL_STATE here because we're going to look at vd0->vdev_tsd.
3149 spa_config_enter(spa
, SCL_STATE
, FTAG
, RW_READER
);
3151 if (ztest_random(2) == 0) {
3153 * Inject errors on a normal data device.
3155 top
= ztest_random(spa
->spa_root_vdev
->vdev_children
);
3156 leaf
= ztest_random(leaves
);
3159 * Generate paths to the first leaf in this top-level vdev,
3160 * and to the random leaf we selected. We'll induce transient
3161 * write failures and random online/offline activity on leaf 0,
3162 * and we'll write random garbage to the randomly chosen leaf.
3164 (void) snprintf(path0
, sizeof (path0
), ztest_dev_template
,
3165 zopt_dir
, zopt_pool
, top
* leaves
+ 0);
3166 (void) snprintf(pathrand
, sizeof (pathrand
), ztest_dev_template
,
3167 zopt_dir
, zopt_pool
, top
* leaves
+ leaf
);
3169 vd0
= vdev_lookup_by_path(spa
->spa_root_vdev
, path0
);
3170 if (vd0
!= NULL
&& maxfaults
!= 1) {
3172 * Make vd0 explicitly claim to be unreadable,
3173 * or unwriteable, or reach behind its back
3174 * and close the underlying fd. We can do this if
3175 * maxfaults == 0 because we'll fail and reexecute,
3176 * and we can do it if maxfaults >= 2 because we'll
3177 * have enough redundancy. If maxfaults == 1, the
3178 * combination of this with injection of random data
3179 * corruption below exceeds the pool's fault tolerance.
3181 vdev_file_t
*vf
= vd0
->vdev_tsd
;
3183 if (vf
!= NULL
&& ztest_random(3) == 0) {
3184 (void) close(vf
->vf_vnode
->v_fd
);
3185 vf
->vf_vnode
->v_fd
= -1;
3186 } else if (ztest_random(2) == 0) {
3187 vd0
->vdev_cant_read
= B_TRUE
;
3189 vd0
->vdev_cant_write
= B_TRUE
;
3191 guid0
= vd0
->vdev_guid
;
3195 * Inject errors on an l2cache device.
3197 spa_aux_vdev_t
*sav
= &spa
->spa_l2cache
;
3199 if (sav
->sav_count
== 0) {
3200 spa_config_exit(spa
, SCL_STATE
, FTAG
);
3203 vd0
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)];
3204 guid0
= vd0
->vdev_guid
;
3205 (void) strcpy(path0
, vd0
->vdev_path
);
3206 (void) strcpy(pathrand
, vd0
->vdev_path
);
3210 maxfaults
= INT_MAX
; /* no limit on cache devices */
3213 spa_config_exit(spa
, SCL_STATE
, FTAG
);
3219 * If we can tolerate two or more faults, randomly online/offline vd0.
3221 if (maxfaults
>= 2 && guid0
!= 0) {
3222 if (ztest_random(10) < 6) {
3223 int flags
= (ztest_random(2) == 0 ?
3224 ZFS_OFFLINE_TEMPORARY
: 0);
3225 VERIFY(vdev_offline(spa
, guid0
, flags
) != EBUSY
);
3227 (void) vdev_online(spa
, guid0
, 0, NULL
);
3232 * We have at least single-fault tolerance, so inject data corruption.
3234 fd
= open(pathrand
, O_RDWR
);
3236 if (fd
== -1) /* we hit a gap in the device namespace */
3239 fsize
= lseek(fd
, 0, SEEK_END
);
3241 while (--iters
!= 0) {
3242 offset
= ztest_random(fsize
/ (leaves
<< bshift
)) *
3243 (leaves
<< bshift
) + (leaf
<< bshift
) +
3244 (ztest_random(1ULL << (bshift
- 1)) & -8ULL);
3246 if (offset
>= fsize
)
3249 if (zopt_verbose
>= 6)
3250 (void) printf("injecting bad word into %s,"
3251 " offset 0x%llx\n", pathrand
, (u_longlong_t
)offset
);
3253 if (pwrite(fd
, &bad
, sizeof (bad
), offset
) != sizeof (bad
))
3254 fatal(1, "can't inject bad word at 0x%llx in %s",
3265 ztest_scrub(ztest_args_t
*za
)
3267 spa_t
*spa
= za
->za_spa
;
3269 (void) spa_scrub(spa
, POOL_SCRUB_EVERYTHING
);
3270 (void) poll(NULL
, 0, 1000); /* wait a second, then force a restart */
3271 (void) spa_scrub(spa
, POOL_SCRUB_EVERYTHING
);
3275 * Rename the pool to a different name and then rename it back.
3278 ztest_spa_rename(ztest_args_t
*za
)
3280 char *oldname
, *newname
;
3284 (void) rw_wrlock(&ztest_shared
->zs_name_lock
);
3286 oldname
= za
->za_pool
;
3287 newname
= umem_alloc(strlen(oldname
) + 5, UMEM_NOFAIL
);
3288 (void) strcpy(newname
, oldname
);
3289 (void) strcat(newname
, "_tmp");
3294 error
= spa_rename(oldname
, newname
);
3296 fatal(0, "spa_rename('%s', '%s') = %d", oldname
,
3300 * Try to open it under the old name, which shouldn't exist
3302 error
= spa_open(oldname
, &spa
, FTAG
);
3303 if (error
!= ENOENT
)
3304 fatal(0, "spa_open('%s') = %d", oldname
, error
);
3307 * Open it under the new name and make sure it's still the same spa_t.
3309 error
= spa_open(newname
, &spa
, FTAG
);
3311 fatal(0, "spa_open('%s') = %d", newname
, error
);
3313 ASSERT(spa
== za
->za_spa
);
3314 spa_close(spa
, FTAG
);
3317 * Rename it back to the original
3319 error
= spa_rename(newname
, oldname
);
3321 fatal(0, "spa_rename('%s', '%s') = %d", newname
,
3325 * Make sure it can still be opened
3327 error
= spa_open(oldname
, &spa
, FTAG
);
3329 fatal(0, "spa_open('%s') = %d", oldname
, error
);
3331 ASSERT(spa
== za
->za_spa
);
3332 spa_close(spa
, FTAG
);
3334 umem_free(newname
, strlen(newname
) + 1);
3336 (void) rw_unlock(&ztest_shared
->zs_name_lock
);
3341 * Completely obliterate one disk.
3344 ztest_obliterate_one_disk(uint64_t vdev
)
3347 char dev_name
[MAXPATHLEN
], copy_name
[MAXPATHLEN
];
3350 if (zopt_maxfaults
< 2)
3353 (void) sprintf(dev_name
, ztest_dev_template
, zopt_dir
, zopt_pool
, vdev
);
3354 (void) snprintf(copy_name
, MAXPATHLEN
, "%s.old", dev_name
);
3356 fd
= open(dev_name
, O_RDWR
);
3359 fatal(1, "can't open %s", dev_name
);
3362 * Determine the size.
3364 fsize
= lseek(fd
, 0, SEEK_END
);
3369 * Rename the old device to dev_name.old (useful for debugging).
3371 VERIFY(rename(dev_name
, copy_name
) == 0);
3376 VERIFY((fd
= open(dev_name
, O_RDWR
| O_CREAT
| O_TRUNC
, 0666)) >= 0);
3377 VERIFY(ftruncate(fd
, fsize
) == 0);
3382 ztest_replace_one_disk(spa_t
*spa
, uint64_t vdev
)
3384 char dev_name
[MAXPATHLEN
];
3390 (void) sprintf(dev_name
, ztest_dev_template
, zopt_dir
, zopt_pool
, vdev
);
3393 * Build the nvlist describing dev_name.
3395 root
= make_vdev_root(dev_name
, NULL
, 0, 0, 0, 0, 0, 1);
3397 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
3398 if ((vd
= vdev_lookup_by_path(spa
->spa_root_vdev
, dev_name
)) == NULL
)
3401 guid
= vd
->vdev_guid
;
3402 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
3403 error
= spa_vdev_attach(spa
, guid
, root
, B_TRUE
);
3409 fatal(0, "spa_vdev_attach(in-place) = %d", error
);
3415 ztest_verify_blocks(char *pool
)
3418 char zdb
[MAXPATHLEN
+ MAXNAMELEN
+ 20];
3426 (void) realpath(getexecname(), zdb
);
3428 /* zdb lives in /usr/sbin, while ztest lives in /usr/bin */
3429 bin
= strstr(zdb
, "/usr/bin/");
3430 ztest
= strstr(bin
, "/ztest");
3432 isalen
= ztest
- isa
;
3436 "/usr/sbin%.*s/zdb -bcc%s%s -U /tmp/zpool.cache %s",
3439 zopt_verbose
>= 3 ? "s" : "",
3440 zopt_verbose
>= 4 ? "v" : "",
3444 if (zopt_verbose
>= 5)
3445 (void) printf("Executing %s\n", strstr(zdb
, "zdb "));
3447 fp
= popen(zdb
, "r");
3449 while (fgets(zbuf
, sizeof (zbuf
), fp
) != NULL
)
3450 if (zopt_verbose
>= 3)
3451 (void) printf("%s", zbuf
);
3453 status
= pclose(fp
);
3458 ztest_dump_core
= 0;
3459 if (WIFEXITED(status
))
3460 fatal(0, "'%s' exit code %d", zdb
, WEXITSTATUS(status
));
3462 fatal(0, "'%s' died with signal %d", zdb
, WTERMSIG(status
));
3466 ztest_walk_pool_directory(char *header
)
3470 if (zopt_verbose
>= 6)
3471 (void) printf("%s\n", header
);
3473 mutex_enter(&spa_namespace_lock
);
3474 while ((spa
= spa_next(spa
)) != NULL
)
3475 if (zopt_verbose
>= 6)
3476 (void) printf("\t%s\n", spa_name(spa
));
3477 mutex_exit(&spa_namespace_lock
);
3481 ztest_spa_import_export(char *oldname
, char *newname
)
3483 nvlist_t
*config
, *newconfig
;
3488 if (zopt_verbose
>= 4) {
3489 (void) printf("import/export: old = %s, new = %s\n",
3494 * Clean up from previous runs.
3496 (void) spa_destroy(newname
);
3499 * Get the pool's configuration and guid.
3501 error
= spa_open(oldname
, &spa
, FTAG
);
3503 fatal(0, "spa_open('%s') = %d", oldname
, error
);
3506 * Kick off a scrub to tickle scrub/export races.
3508 if (ztest_random(2) == 0)
3509 (void) spa_scrub(spa
, POOL_SCRUB_EVERYTHING
);
3511 pool_guid
= spa_guid(spa
);
3512 spa_close(spa
, FTAG
);
3514 ztest_walk_pool_directory("pools before export");
3519 error
= spa_export(oldname
, &config
, B_FALSE
, B_FALSE
);
3521 fatal(0, "spa_export('%s') = %d", oldname
, error
);
3523 ztest_walk_pool_directory("pools after export");
3528 newconfig
= spa_tryimport(config
);
3529 ASSERT(newconfig
!= NULL
);
3530 nvlist_free(newconfig
);
3533 * Import it under the new name.
3535 error
= spa_import(newname
, config
, NULL
);
3537 fatal(0, "spa_import('%s') = %d", newname
, error
);
3539 ztest_walk_pool_directory("pools after import");
3542 * Try to import it again -- should fail with EEXIST.
3544 error
= spa_import(newname
, config
, NULL
);
3545 if (error
!= EEXIST
)
3546 fatal(0, "spa_import('%s') twice", newname
);
3549 * Try to import it under a different name -- should fail with EEXIST.
3551 error
= spa_import(oldname
, config
, NULL
);
3552 if (error
!= EEXIST
)
3553 fatal(0, "spa_import('%s') under multiple names", newname
);
3556 * Verify that the pool is no longer visible under the old name.
3558 error
= spa_open(oldname
, &spa
, FTAG
);
3559 if (error
!= ENOENT
)
3560 fatal(0, "spa_open('%s') = %d", newname
, error
);
3563 * Verify that we can open and close the pool using the new name.
3565 error
= spa_open(newname
, &spa
, FTAG
);
3567 fatal(0, "spa_open('%s') = %d", newname
, error
);
3568 ASSERT(pool_guid
== spa_guid(spa
));
3569 spa_close(spa
, FTAG
);
3571 nvlist_free(config
);
3575 ztest_resume(spa_t
*spa
)
3577 if (spa_suspended(spa
)) {
3578 spa_vdev_state_enter(spa
);
3579 vdev_clear(spa
, NULL
);
3580 (void) spa_vdev_state_exit(spa
, NULL
, 0);
3581 (void) zio_resume(spa
);
3586 ztest_resume_thread(void *arg
)
3590 while (!ztest_exiting
) {
3591 (void) poll(NULL
, 0, 1000);
3598 ztest_thread(void *arg
)
3600 ztest_args_t
*za
= arg
;
3601 ztest_shared_t
*zs
= ztest_shared
;
3602 hrtime_t now
, functime
;
3606 while ((now
= gethrtime()) < za
->za_stop
) {
3608 * See if it's time to force a crash.
3610 if (now
> za
->za_kill
) {
3611 zs
->zs_alloc
= spa_get_alloc(za
->za_spa
);
3612 zs
->zs_space
= spa_get_space(za
->za_spa
);
3613 (void) kill(getpid(), SIGKILL
);
3617 * Pick a random function.
3619 f
= ztest_random(ZTEST_FUNCS
);
3620 zi
= &zs
->zs_info
[f
];
3623 * Decide whether to call it, based on the requested frequency.
3625 if (zi
->zi_call_target
== 0 ||
3626 (double)zi
->zi_call_total
/ zi
->zi_call_target
>
3627 (double)(now
- zs
->zs_start_time
) / (zopt_time
* NANOSEC
))
3630 atomic_add_64(&zi
->zi_calls
, 1);
3631 atomic_add_64(&zi
->zi_call_total
, 1);
3633 za
->za_diroff
= (za
->za_instance
* ZTEST_FUNCS
+ f
) *
3635 za
->za_diroff_shared
= (1ULL << 63);
3637 for (i
= 0; i
< zi
->zi_iters
; i
++)
3640 functime
= gethrtime() - now
;
3642 atomic_add_64(&zi
->zi_call_time
, functime
);
3644 if (zopt_verbose
>= 4) {
3646 (void) dladdr((void *)zi
->zi_func
, &dli
);
3647 (void) printf("%6.2f sec in %s\n",
3648 (double)functime
/ NANOSEC
, dli
.dli_sname
);
3652 * If we're getting ENOSPC with some regularity, stop.
3654 if (zs
->zs_enospc_count
> 10)
3662 * Kick off threads to run tests on all datasets in parallel.
3665 ztest_run(char *pool
)
3668 ztest_shared_t
*zs
= ztest_shared
;
3672 thread_t resume_tid
;
3674 ztest_exiting
= B_FALSE
;
3676 (void) _mutex_init(&zs
->zs_vdev_lock
, USYNC_THREAD
, NULL
);
3677 (void) rwlock_init(&zs
->zs_name_lock
, USYNC_THREAD
, NULL
);
3679 for (t
= 0; t
< ZTEST_SYNC_LOCKS
; t
++)
3680 (void) _mutex_init(&zs
->zs_sync_lock
[t
], USYNC_THREAD
, NULL
);
3683 * Destroy one disk before we even start.
3684 * It's mirrored, so everything should work just fine.
3685 * This makes us exercise fault handling very early in spa_load().
3687 ztest_obliterate_one_disk(0);
3690 * Verify that the sum of the sizes of all blocks in the pool
3691 * equals the SPA's allocated space total.
3693 ztest_verify_blocks(pool
);
3696 * Kick off a replacement of the disk we just obliterated.
3698 kernel_init(FREAD
| FWRITE
);
3699 VERIFY(spa_open(pool
, &spa
, FTAG
) == 0);
3700 ztest_replace_one_disk(spa
, 0);
3701 if (zopt_verbose
>= 5)
3702 show_pool_stats(spa
);
3703 spa_close(spa
, FTAG
);
3706 kernel_init(FREAD
| FWRITE
);
3709 * Verify that we can export the pool and reimport it under a
3712 if (ztest_random(2) == 0) {
3713 (void) snprintf(name
, 100, "%s_import", pool
);
3714 ztest_spa_import_export(pool
, name
);
3715 ztest_spa_import_export(name
, pool
);
3719 * Verify that we can loop over all pools.
3721 mutex_enter(&spa_namespace_lock
);
3722 for (spa
= spa_next(NULL
); spa
!= NULL
; spa
= spa_next(spa
)) {
3723 if (zopt_verbose
> 3) {
3724 (void) printf("spa_next: found %s\n", spa_name(spa
));
3727 mutex_exit(&spa_namespace_lock
);
3732 VERIFY(spa_open(pool
, &spa
, FTAG
) == 0);
3735 * We don't expect the pool to suspend unless maxfaults == 0,
3736 * in which case ztest_fault_inject() temporarily takes away
3737 * the only valid replica.
3739 if (zopt_maxfaults
== 0)
3740 spa
->spa_failmode
= ZIO_FAILURE_MODE_WAIT
;
3742 spa
->spa_failmode
= ZIO_FAILURE_MODE_PANIC
;
3745 * Create a thread to periodically resume suspended I/O.
3747 VERIFY(thr_create(0, 0, ztest_resume_thread
, spa
, THR_BOUND
,
3751 * Verify that we can safely inquire about about any object,
3752 * whether it's allocated or not. To make it interesting,
3753 * we probe a 5-wide window around each power of two.
3754 * This hits all edge cases, including zero and the max.
3756 for (t
= 0; t
< 64; t
++) {
3757 for (d
= -5; d
<= 5; d
++) {
3758 error
= dmu_object_info(spa
->spa_meta_objset
,
3759 (1ULL << t
) + d
, NULL
);
3760 ASSERT(error
== 0 || error
== ENOENT
||
3766 * Now kick off all the tests that run in parallel.
3768 zs
->zs_enospc_count
= 0;
3770 za
= umem_zalloc(zopt_threads
* sizeof (ztest_args_t
), UMEM_NOFAIL
);
3772 if (zopt_verbose
>= 4)
3773 (void) printf("starting main threads...\n");
3775 za
[0].za_start
= gethrtime();
3776 za
[0].za_stop
= za
[0].za_start
+ zopt_passtime
* NANOSEC
;
3777 za
[0].za_stop
= MIN(za
[0].za_stop
, zs
->zs_stop_time
);
3778 za
[0].za_kill
= za
[0].za_stop
;
3779 if (ztest_random(100) < zopt_killrate
)
3780 za
[0].za_kill
-= ztest_random(zopt_passtime
* NANOSEC
);
3782 for (t
= 0; t
< zopt_threads
; t
++) {
3783 d
= t
% zopt_datasets
;
3785 (void) strcpy(za
[t
].za_pool
, pool
);
3786 za
[t
].za_os
= za
[d
].za_os
;
3788 za
[t
].za_zilog
= za
[d
].za_zilog
;
3789 za
[t
].za_instance
= t
;
3790 za
[t
].za_random
= ztest_random(-1ULL);
3791 za
[t
].za_start
= za
[0].za_start
;
3792 za
[t
].za_stop
= za
[0].za_stop
;
3793 za
[t
].za_kill
= za
[0].za_kill
;
3795 if (t
< zopt_datasets
) {
3796 int test_future
= FALSE
;
3797 (void) rw_rdlock(&ztest_shared
->zs_name_lock
);
3798 (void) snprintf(name
, 100, "%s/%s_%d", pool
, pool
, d
);
3799 error
= dmu_objset_create(name
, DMU_OST_OTHER
, NULL
, 0,
3800 ztest_create_cb
, NULL
);
3801 if (error
== EEXIST
) {
3803 } else if (error
== ENOSPC
) {
3804 zs
->zs_enospc_count
++;
3805 (void) rw_unlock(&ztest_shared
->zs_name_lock
);
3807 } else if (error
!= 0) {
3808 fatal(0, "dmu_objset_create(%s) = %d",
3811 error
= dmu_objset_open(name
, DMU_OST_OTHER
,
3812 DS_MODE_USER
, &za
[d
].za_os
);
3814 fatal(0, "dmu_objset_open('%s') = %d",
3816 (void) rw_unlock(&ztest_shared
->zs_name_lock
);
3818 ztest_dmu_check_future_leak(&za
[t
]);
3819 zil_replay(za
[d
].za_os
, za
[d
].za_os
,
3820 ztest_replay_vector
);
3821 za
[d
].za_zilog
= zil_open(za
[d
].za_os
, NULL
);
3824 VERIFY(thr_create(0, 0, ztest_thread
, &za
[t
], THR_BOUND
,
3825 &za
[t
].za_thread
) == 0);
3829 VERIFY(thr_join(za
[t
].za_thread
, NULL
, NULL
) == 0);
3830 if (t
< zopt_datasets
) {
3831 zil_close(za
[t
].za_zilog
);
3832 dmu_objset_close(za
[t
].za_os
);
3836 if (zopt_verbose
>= 3)
3837 show_pool_stats(spa
);
3839 txg_wait_synced(spa_get_dsl(spa
), 0);
3841 zs
->zs_alloc
= spa_get_alloc(spa
);
3842 zs
->zs_space
= spa_get_space(spa
);
3845 * If we had out-of-space errors, destroy a random objset.
3847 if (zs
->zs_enospc_count
!= 0) {
3848 (void) rw_rdlock(&ztest_shared
->zs_name_lock
);
3849 d
= (int)ztest_random(zopt_datasets
);
3850 (void) snprintf(name
, 100, "%s/%s_%d", pool
, pool
, d
);
3851 if (zopt_verbose
>= 3)
3852 (void) printf("Destroying %s to free up space\n", name
);
3854 /* Cleanup any non-standard clones and snapshots */
3855 ztest_dsl_dataset_cleanup(name
, za
[d
].za_instance
);
3857 (void) dmu_objset_find(name
, ztest_destroy_cb
, &za
[d
],
3858 DS_FIND_SNAPSHOTS
| DS_FIND_CHILDREN
);
3859 (void) rw_unlock(&ztest_shared
->zs_name_lock
);
3862 txg_wait_synced(spa_get_dsl(spa
), 0);
3864 umem_free(za
, zopt_threads
* sizeof (ztest_args_t
));
3866 /* Kill the resume thread */
3867 ztest_exiting
= B_TRUE
;
3868 VERIFY(thr_join(resume_tid
, NULL
, NULL
) == 0);
3872 * Right before closing the pool, kick off a bunch of async I/O;
3873 * spa_close() should wait for it to complete.
3875 for (t
= 1; t
< 50; t
++)
3876 dmu_prefetch(spa
->spa_meta_objset
, t
, 0, 1 << 15);
3878 spa_close(spa
, FTAG
);
3884 print_time(hrtime_t t
, char *timebuf
)
3886 hrtime_t s
= t
/ NANOSEC
;
3887 hrtime_t m
= s
/ 60;
3888 hrtime_t h
= m
/ 60;
3889 hrtime_t d
= h
/ 24;
3898 (void) sprintf(timebuf
,
3899 "%llud%02lluh%02llum%02llus", d
, h
, m
, s
);
3901 (void) sprintf(timebuf
, "%lluh%02llum%02llus", h
, m
, s
);
3903 (void) sprintf(timebuf
, "%llum%02llus", m
, s
);
3905 (void) sprintf(timebuf
, "%llus", s
);
3909 * Create a storage pool with the given name and initial vdev size.
3910 * Then create the specified number of datasets in the pool.
3913 ztest_init(char *pool
)
3919 kernel_init(FREAD
| FWRITE
);
3922 * Create the storage pool.
3924 (void) spa_destroy(pool
);
3925 ztest_shared
->zs_vdev_primaries
= 0;
3926 nvroot
= make_vdev_root(NULL
, NULL
, zopt_vdev_size
, 0,
3927 0, zopt_raidz
, zopt_mirrors
, 1);
3928 error
= spa_create(pool
, nvroot
, NULL
, NULL
, NULL
);
3929 nvlist_free(nvroot
);
3932 fatal(0, "spa_create() = %d", error
);
3933 error
= spa_open(pool
, &spa
, FTAG
);
3935 fatal(0, "spa_open() = %d", error
);
3937 metaslab_sz
= 1ULL << spa
->spa_root_vdev
->vdev_child
[0]->vdev_ms_shift
;
3939 if (zopt_verbose
>= 3)
3940 show_pool_stats(spa
);
3942 spa_close(spa
, FTAG
);
3948 main(int argc
, char **argv
)
3958 (void) setvbuf(stdout
, NULL
, _IOLBF
, 0);
3960 /* Override location of zpool.cache */
3961 spa_config_path
= "/tmp/zpool.cache";
3963 ztest_random_fd
= open("/dev/urandom", O_RDONLY
);
3965 process_options(argc
, argv
);
3968 * Blow away any existing copy of zpool.cache
3971 (void) remove("/tmp/zpool.cache");
3973 zs
= ztest_shared
= (void *)mmap(0,
3974 P2ROUNDUP(sizeof (ztest_shared_t
), getpagesize()),
3975 PROT_READ
| PROT_WRITE
, MAP_SHARED
| MAP_ANON
, -1, 0);
3977 if (zopt_verbose
>= 1) {
3978 (void) printf("%llu vdevs, %d datasets, %d threads,"
3979 " %llu seconds...\n",
3980 (u_longlong_t
)zopt_vdevs
, zopt_datasets
, zopt_threads
,
3981 (u_longlong_t
)zopt_time
);
3985 * Create and initialize our storage pool.
3987 for (i
= 1; i
<= zopt_init
; i
++) {
3988 bzero(zs
, sizeof (ztest_shared_t
));
3989 if (zopt_verbose
>= 3 && zopt_init
!= 1)
3990 (void) printf("ztest_init(), pass %d\n", i
);
3991 ztest_init(zopt_pool
);
3995 * Initialize the call targets for each function.
3997 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
3998 zi
= &zs
->zs_info
[f
];
4000 *zi
= ztest_info
[f
];
4002 if (*zi
->zi_interval
== 0)
4003 zi
->zi_call_target
= UINT64_MAX
;
4005 zi
->zi_call_target
= zopt_time
/ *zi
->zi_interval
;
4008 zs
->zs_start_time
= gethrtime();
4009 zs
->zs_stop_time
= zs
->zs_start_time
+ zopt_time
* NANOSEC
;
4012 * Run the tests in a loop. These tests include fault injection
4013 * to verify that self-healing data works, and forced crashes
4014 * to verify that we never lose on-disk consistency.
4016 while (gethrtime() < zs
->zs_stop_time
) {
4022 * Initialize the workload counters for each function.
4024 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
4025 zi
= &zs
->zs_info
[f
];
4027 zi
->zi_call_time
= 0;
4030 /* Set the allocation switch size */
4031 metaslab_df_alloc_threshold
= ztest_random(metaslab_sz
/ 4) + 1;
4036 fatal(1, "fork failed");
4038 if (pid
== 0) { /* child */
4039 struct rlimit rl
= { 1024, 1024 };
4040 (void) setrlimit(RLIMIT_NOFILE
, &rl
);
4041 (void) enable_extended_FILE_stdio(-1, -1);
4042 ztest_run(zopt_pool
);
4046 while (waitpid(pid
, &status
, 0) != pid
)
4049 if (WIFEXITED(status
)) {
4050 if (WEXITSTATUS(status
) != 0) {
4051 (void) fprintf(stderr
,
4052 "child exited with code %d\n",
4053 WEXITSTATUS(status
));
4056 } else if (WIFSIGNALED(status
)) {
4057 if (WTERMSIG(status
) != SIGKILL
) {
4058 (void) fprintf(stderr
,
4059 "child died with signal %d\n",
4065 (void) fprintf(stderr
, "something strange happened "
4072 if (zopt_verbose
>= 1) {
4073 hrtime_t now
= gethrtime();
4075 now
= MIN(now
, zs
->zs_stop_time
);
4076 print_time(zs
->zs_stop_time
- now
, timebuf
);
4077 nicenum(zs
->zs_space
, numbuf
);
4079 (void) printf("Pass %3d, %8s, %3llu ENOSPC, "
4080 "%4.1f%% of %5s used, %3.0f%% done, %8s to go\n",
4082 WIFEXITED(status
) ? "Complete" : "SIGKILL",
4083 (u_longlong_t
)zs
->zs_enospc_count
,
4084 100.0 * zs
->zs_alloc
/ zs
->zs_space
,
4086 100.0 * (now
- zs
->zs_start_time
) /
4087 (zopt_time
* NANOSEC
), timebuf
);
4090 if (zopt_verbose
>= 2) {
4091 (void) printf("\nWorkload summary:\n\n");
4092 (void) printf("%7s %9s %s\n",
4093 "Calls", "Time", "Function");
4094 (void) printf("%7s %9s %s\n",
4095 "-----", "----", "--------");
4096 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
4099 zi
= &zs
->zs_info
[f
];
4100 print_time(zi
->zi_call_time
, timebuf
);
4101 (void) dladdr((void *)zi
->zi_func
, &dli
);
4102 (void) printf("%7llu %9s %s\n",
4103 (u_longlong_t
)zi
->zi_calls
, timebuf
,
4106 (void) printf("\n");
4110 * It's possible that we killed a child during a rename test, in
4111 * which case we'll have a 'ztest_tmp' pool lying around instead
4112 * of 'ztest'. Do a blind rename in case this happened.
4114 tmp
= umem_alloc(strlen(zopt_pool
) + 5, UMEM_NOFAIL
);
4115 (void) strcpy(tmp
, zopt_pool
);
4116 (void) strcat(tmp
, "_tmp");
4117 kernel_init(FREAD
| FWRITE
);
4118 (void) spa_rename(tmp
, zopt_pool
);
4120 umem_free(tmp
, strlen(tmp
) + 1);
4123 ztest_verify_blocks(zopt_pool
);
4125 if (zopt_verbose
>= 1) {
4126 (void) printf("%d killed, %d completed, %.0f%% kill rate\n",
4127 kills
, iters
- kills
, (100.0 * kills
) / MAX(1, iters
));