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 2008 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
26 #pragma ident "@(#)ztest.c 1.34 08/04/27 SMI"
29 * The objective of this program is to provide a DMU/ZAP/SPA stress test
30 * that runs entirely in userland, is easy to use, and easy to extend.
32 * The overall design of the ztest program is as follows:
34 * (1) For each major functional area (e.g. adding vdevs to a pool,
35 * creating and destroying datasets, reading and writing objects, etc)
36 * we have a simple routine to test that functionality. These
37 * individual routines do not have to do anything "stressful".
39 * (2) We turn these simple functionality tests into a stress test by
40 * running them all in parallel, with as many threads as desired,
41 * and spread across as many datasets, objects, and vdevs as desired.
43 * (3) While all this is happening, we inject faults into the pool to
44 * verify that self-healing data really works.
46 * (4) Every time we open a dataset, we change its checksum and compression
47 * functions. Thus even individual objects vary from block to block
48 * in which checksum they use and whether they're compressed.
50 * (5) To verify that we never lose on-disk consistency after a crash,
51 * we run the entire test in a child of the main process.
52 * At random times, the child self-immolates with a SIGKILL.
53 * This is the software equivalent of pulling the power cord.
54 * The parent then runs the test again, using the existing
55 * storage pool, as many times as desired.
57 * (6) To verify that we don't have future leaks or temporal incursions,
58 * many of the functional tests record the transaction group number
59 * as part of their data. When reading old data, they verify that
60 * the transaction group number is less than the current, open txg.
61 * If you add a new test, please do this if applicable.
63 * When run with no arguments, ztest runs for about five minutes and
64 * produces no output if successful. To get a little bit of information,
65 * specify -V. To get more information, specify -VV, and so on.
67 * To turn this into an overnight stress test, use -T to specify run time.
69 * You can ask more more vdevs [-v], datasets [-d], or threads [-t]
70 * to increase the pool capacity, fanout, and overall stress level.
72 * The -N(okill) option will suppress kills, so each child runs to completion.
73 * This can be useful when you're trying to distinguish temporal incursions
74 * from plain old race conditions.
77 #include <sys/zfs_context.h>
82 #include <sys/dmu_traverse.h>
83 #include <sys/dmu_objset.h>
89 #include <sys/resource.h>
91 #include <sys/zio_checksum.h>
92 #include <sys/zio_compress.h>
94 #include <sys/vdev_impl.h>
95 #include <sys/spa_impl.h>
96 #include <sys/dsl_prop.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
;
128 static uint16_t zopt_write_fail_shift
= 5;
130 typedef struct ztest_block_tag
{
139 typedef struct ztest_args
{
140 char za_pool
[MAXNAMELEN
];
145 uint64_t za_instance
;
148 uint64_t za_diroff_shared
;
153 traverse_handle_t
*za_th
;
155 * Thread-local variables can go here to aid debugging.
157 ztest_block_tag_t za_rbt
;
158 ztest_block_tag_t za_wbt
;
159 dmu_object_info_t za_doi
;
163 typedef void ztest_func_t(ztest_args_t
*);
166 * Note: these aren't static because we want dladdr() to work.
168 ztest_func_t ztest_dmu_read_write
;
169 ztest_func_t ztest_dmu_write_parallel
;
170 ztest_func_t ztest_dmu_object_alloc_free
;
171 ztest_func_t ztest_zap
;
172 ztest_func_t ztest_zap_parallel
;
173 ztest_func_t ztest_traverse
;
174 ztest_func_t ztest_dsl_prop_get_set
;
175 ztest_func_t ztest_dmu_objset_create_destroy
;
176 ztest_func_t ztest_dmu_snapshot_create_destroy
;
177 ztest_func_t ztest_spa_create_destroy
;
178 ztest_func_t ztest_fault_inject
;
179 ztest_func_t ztest_vdev_attach_detach
;
180 ztest_func_t ztest_vdev_LUN_growth
;
181 ztest_func_t ztest_vdev_add_remove
;
182 ztest_func_t ztest_scrub
;
183 ztest_func_t ztest_spa_rename
;
185 typedef struct ztest_info
{
186 ztest_func_t
*zi_func
; /* test function */
187 uint64_t zi_iters
; /* iterations per execution */
188 uint64_t *zi_interval
; /* execute every <interval> seconds */
189 uint64_t zi_calls
; /* per-pass count */
190 uint64_t zi_call_time
; /* per-pass time */
191 uint64_t zi_call_total
; /* cumulative total */
192 uint64_t zi_call_target
; /* target cumulative total */
195 uint64_t zopt_always
= 0; /* all the time */
196 uint64_t zopt_often
= 1; /* every second */
197 uint64_t zopt_sometimes
= 10; /* every 10 seconds */
198 uint64_t zopt_rarely
= 60; /* every 60 seconds */
200 ztest_info_t ztest_info
[] = {
201 { ztest_dmu_read_write
, 1, &zopt_always
},
202 { ztest_dmu_write_parallel
, 30, &zopt_always
},
203 { ztest_dmu_object_alloc_free
, 1, &zopt_always
},
204 { ztest_zap
, 30, &zopt_always
},
205 { ztest_zap_parallel
, 100, &zopt_always
},
206 { ztest_traverse
, 1, &zopt_often
},
207 { ztest_dsl_prop_get_set
, 1, &zopt_sometimes
},
208 { ztest_dmu_objset_create_destroy
, 1, &zopt_sometimes
},
209 { ztest_dmu_snapshot_create_destroy
, 1, &zopt_rarely
},
210 { ztest_spa_create_destroy
, 1, &zopt_sometimes
},
211 { ztest_fault_inject
, 1, &zopt_sometimes
},
212 { ztest_spa_rename
, 1, &zopt_rarely
},
213 { ztest_vdev_attach_detach
, 1, &zopt_rarely
},
214 { ztest_vdev_LUN_growth
, 1, &zopt_rarely
},
215 { ztest_vdev_add_remove
, 1, &zopt_vdevtime
},
216 { ztest_scrub
, 1, &zopt_vdevtime
},
219 #define ZTEST_FUNCS (sizeof (ztest_info) / sizeof (ztest_info_t))
221 #define ZTEST_SYNC_LOCKS 16
224 * Stuff we need to share writably between parent and child.
226 typedef struct ztest_shared
{
227 mutex_t zs_vdev_lock
;
228 rwlock_t zs_name_lock
;
229 uint64_t zs_vdev_primaries
;
230 uint64_t zs_enospc_count
;
231 hrtime_t zs_start_time
;
232 hrtime_t zs_stop_time
;
235 ztest_info_t zs_info
[ZTEST_FUNCS
];
236 mutex_t zs_sync_lock
[ZTEST_SYNC_LOCKS
];
237 uint64_t zs_seq
[ZTEST_SYNC_LOCKS
];
240 static char ztest_dev_template
[] = "%s/%s.%llua";
241 static ztest_shared_t
*ztest_shared
;
243 static int ztest_random_fd
;
244 static int ztest_dump_core
= 1;
246 static boolean_t ztest_exiting
= B_FALSE
;
248 extern uint64_t metaslab_gang_bang
;
249 extern uint16_t zio_zil_fail_shift
;
250 extern uint16_t zio_io_fail_shift
;
252 #define ZTEST_DIROBJ 1
253 #define ZTEST_MICROZAP_OBJ 2
254 #define ZTEST_FATZAP_OBJ 3
256 #define ZTEST_DIROBJ_BLOCKSIZE (1 << 10)
257 #define ZTEST_DIRSIZE 256
259 static void usage(boolean_t
) __NORETURN
;
262 * These libumem hooks provide a reasonable set of defaults for the allocator's
263 * debugging facilities.
268 return ("default,verbose"); /* $UMEM_DEBUG setting */
272 _umem_logging_init(void)
274 return ("fail,contents"); /* $UMEM_LOGGING setting */
277 #define FATAL_MSG_SZ 1024
282 fatal(int do_perror
, char *message
, ...)
285 int save_errno
= errno
;
286 char buf
[FATAL_MSG_SZ
];
288 (void) fflush(stdout
);
290 va_start(args
, message
);
291 (void) sprintf(buf
, "ztest: ");
293 (void) vsprintf(buf
+ strlen(buf
), message
, args
);
296 (void) snprintf(buf
+ strlen(buf
), FATAL_MSG_SZ
- strlen(buf
),
297 ": %s", strerror(save_errno
));
299 (void) fprintf(stderr
, "%s\n", buf
);
300 fatal_msg
= buf
; /* to ease debugging */
307 str2shift(const char *buf
)
309 const char *ends
= "BKMGTPEZ";
314 for (i
= 0; i
< strlen(ends
); i
++) {
315 if (toupper(buf
[0]) == ends
[i
])
318 if (i
== strlen(ends
)) {
319 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n",
323 if (buf
[1] == '\0' || (toupper(buf
[1]) == 'B' && buf
[2] == '\0')) {
326 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n", buf
);
332 nicenumtoull(const char *buf
)
337 val
= strtoull(buf
, &end
, 0);
339 (void) fprintf(stderr
, "ztest: bad numeric value: %s\n", buf
);
341 } else if (end
[0] == '.') {
342 double fval
= strtod(buf
, &end
);
343 fval
*= pow(2, str2shift(end
));
344 if (fval
> UINT64_MAX
) {
345 (void) fprintf(stderr
, "ztest: value too large: %s\n",
349 val
= (uint64_t)fval
;
351 int shift
= str2shift(end
);
352 if (shift
>= 64 || (val
<< shift
) >> shift
!= val
) {
353 (void) fprintf(stderr
, "ztest: value too large: %s\n",
363 usage(boolean_t requested
)
365 char nice_vdev_size
[10];
366 char nice_gang_bang
[10];
367 FILE *fp
= requested
? stdout
: stderr
;
369 nicenum(zopt_vdev_size
, nice_vdev_size
);
370 nicenum(metaslab_gang_bang
, nice_gang_bang
);
372 (void) fprintf(fp
, "Usage: %s\n"
373 "\t[-v vdevs (default: %llu)]\n"
374 "\t[-s size_of_each_vdev (default: %s)]\n"
375 "\t[-a alignment_shift (default: %d) (use 0 for random)]\n"
376 "\t[-m mirror_copies (default: %d)]\n"
377 "\t[-r raidz_disks (default: %d)]\n"
378 "\t[-R raidz_parity (default: %d)]\n"
379 "\t[-d datasets (default: %d)]\n"
380 "\t[-t threads (default: %d)]\n"
381 "\t[-g gang_block_threshold (default: %s)]\n"
382 "\t[-i initialize pool i times (default: %d)]\n"
383 "\t[-k kill percentage (default: %llu%%)]\n"
384 "\t[-p pool_name (default: %s)]\n"
385 "\t[-f file directory for vdev files (default: %s)]\n"
386 "\t[-V(erbose)] (use multiple times for ever more blather)\n"
387 "\t[-E(xisting)] (use existing pool instead of creating new one)\n"
388 "\t[-T time] total run time (default: %llu sec)\n"
389 "\t[-P passtime] time per pass (default: %llu sec)\n"
390 "\t[-z zil failure rate (default: fail every 2^%llu allocs)]\n"
391 "\t[-w write failure rate (default: fail every 2^%llu allocs)]\n"
392 "\t[-h] (print help)\n"
395 (u_longlong_t
)zopt_vdevs
, /* -v */
396 nice_vdev_size
, /* -s */
397 zopt_ashift
, /* -a */
398 zopt_mirrors
, /* -m */
400 zopt_raidz_parity
, /* -R */
401 zopt_datasets
, /* -d */
402 zopt_threads
, /* -t */
403 nice_gang_bang
, /* -g */
405 (u_longlong_t
)zopt_killrate
, /* -k */
408 (u_longlong_t
)zopt_time
, /* -T */
409 (u_longlong_t
)zopt_passtime
, /* -P */
410 (u_longlong_t
)zio_zil_fail_shift
, /* -z */
411 (u_longlong_t
)zopt_write_fail_shift
); /* -w */
412 exit(requested
? 0 : 1);
416 ztest_random(uint64_t range
)
423 if (read(ztest_random_fd
, &r
, sizeof (r
)) != sizeof (r
))
424 fatal(1, "short read from /dev/urandom");
430 ztest_record_enospc(char *s
)
432 dprintf("ENOSPC doing: %s\n", s
? s
: "<unknown>");
433 ztest_shared
->zs_enospc_count
++;
437 process_options(int argc
, char **argv
)
442 /* By default, test gang blocks for blocks 32K and greater */
443 metaslab_gang_bang
= 32 << 10;
445 /* Default value, fail every 32nd allocation */
446 zio_zil_fail_shift
= 5;
448 while ((opt
= getopt(argc
, argv
,
449 "v:s:a:m:r:R:d:t:g:i:k:p:f:VET:P:z:w:h")) != EOF
) {
467 value
= nicenumtoull(optarg
);
474 zopt_vdev_size
= MAX(SPA_MINDEVSIZE
, value
);
480 zopt_mirrors
= value
;
483 zopt_raidz
= MAX(1, value
);
486 zopt_raidz_parity
= MIN(MAX(value
, 1), 2);
489 zopt_datasets
= MAX(1, value
);
492 zopt_threads
= MAX(1, value
);
495 metaslab_gang_bang
= MAX(SPA_MINBLOCKSIZE
<< 1, value
);
501 zopt_killrate
= value
;
504 zopt_pool
= strdup(optarg
);
507 zopt_dir
= strdup(optarg
);
519 zopt_passtime
= MAX(1, value
);
522 zio_zil_fail_shift
= MIN(value
, 16);
525 zopt_write_fail_shift
= MIN(value
, 16);
537 zopt_raidz_parity
= MIN(zopt_raidz_parity
, zopt_raidz
- 1);
539 zopt_vdevtime
= (zopt_vdevs
> 0 ? zopt_time
/ zopt_vdevs
: UINT64_MAX
);
540 zopt_maxfaults
= MAX(zopt_mirrors
, 1) * (zopt_raidz_parity
+ 1) - 1;
544 ztest_get_ashift(void)
546 if (zopt_ashift
== 0)
547 return (SPA_MINBLOCKSHIFT
+ ztest_random(3));
548 return (zopt_ashift
);
552 make_vdev_file(size_t size
)
554 char dev_name
[MAXPATHLEN
];
556 uint64_t ashift
= ztest_get_ashift();
561 (void) snprintf(dev_name
, sizeof (dev_name
), "%s",
564 vdev
= ztest_shared
->zs_vdev_primaries
++;
565 (void) sprintf(dev_name
, ztest_dev_template
,
566 zopt_dir
, zopt_pool
, vdev
);
568 fd
= open(dev_name
, O_RDWR
| O_CREAT
| O_TRUNC
, 0666);
570 fatal(1, "can't open %s", dev_name
);
571 if (ftruncate(fd
, size
) != 0)
572 fatal(1, "can't ftruncate %s", dev_name
);
576 VERIFY(nvlist_alloc(&file
, NV_UNIQUE_NAME
, 0) == 0);
577 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_FILE
) == 0);
578 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_PATH
, dev_name
) == 0);
579 VERIFY(nvlist_add_uint64(file
, ZPOOL_CONFIG_ASHIFT
, ashift
) == 0);
585 make_vdev_raidz(size_t size
, int r
)
587 nvlist_t
*raidz
, **child
;
591 return (make_vdev_file(size
));
593 child
= umem_alloc(r
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
595 for (c
= 0; c
< r
; c
++)
596 child
[c
] = make_vdev_file(size
);
598 VERIFY(nvlist_alloc(&raidz
, NV_UNIQUE_NAME
, 0) == 0);
599 VERIFY(nvlist_add_string(raidz
, ZPOOL_CONFIG_TYPE
,
600 VDEV_TYPE_RAIDZ
) == 0);
601 VERIFY(nvlist_add_uint64(raidz
, ZPOOL_CONFIG_NPARITY
,
602 zopt_raidz_parity
) == 0);
603 VERIFY(nvlist_add_nvlist_array(raidz
, ZPOOL_CONFIG_CHILDREN
,
606 for (c
= 0; c
< r
; c
++)
607 nvlist_free(child
[c
]);
609 umem_free(child
, r
* sizeof (nvlist_t
*));
615 make_vdev_mirror(size_t size
, int log
, int r
, int m
)
617 nvlist_t
*mirror
, **child
;
621 return (make_vdev_raidz(size
, r
));
623 child
= umem_alloc(m
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
625 for (c
= 0; c
< m
; c
++)
626 child
[c
] = make_vdev_raidz(size
, r
);
628 VERIFY(nvlist_alloc(&mirror
, NV_UNIQUE_NAME
, 0) == 0);
629 VERIFY(nvlist_add_string(mirror
, ZPOOL_CONFIG_TYPE
,
630 VDEV_TYPE_MIRROR
) == 0);
631 VERIFY(nvlist_add_nvlist_array(mirror
, ZPOOL_CONFIG_CHILDREN
,
633 VERIFY(nvlist_add_uint64(mirror
, ZPOOL_CONFIG_IS_LOG
, log
) == 0);
635 for (c
= 0; c
< m
; c
++)
636 nvlist_free(child
[c
]);
638 umem_free(child
, m
* sizeof (nvlist_t
*));
644 make_vdev_root(size_t size
, int log
, int r
, int m
, int t
)
646 nvlist_t
*root
, **child
;
651 child
= umem_alloc(t
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
653 for (c
= 0; c
< t
; c
++)
654 child
[c
] = make_vdev_mirror(size
, log
, r
, m
);
656 VERIFY(nvlist_alloc(&root
, NV_UNIQUE_NAME
, 0) == 0);
657 VERIFY(nvlist_add_string(root
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_ROOT
) == 0);
658 VERIFY(nvlist_add_nvlist_array(root
, ZPOOL_CONFIG_CHILDREN
,
661 for (c
= 0; c
< t
; c
++)
662 nvlist_free(child
[c
]);
664 umem_free(child
, t
* sizeof (nvlist_t
*));
670 ztest_set_random_blocksize(objset_t
*os
, uint64_t object
, dmu_tx_t
*tx
)
672 int bs
= SPA_MINBLOCKSHIFT
+
673 ztest_random(SPA_MAXBLOCKSHIFT
- SPA_MINBLOCKSHIFT
+ 1);
674 int ibs
= DN_MIN_INDBLKSHIFT
+
675 ztest_random(DN_MAX_INDBLKSHIFT
- DN_MIN_INDBLKSHIFT
+ 1);
678 error
= dmu_object_set_blocksize(os
, object
, 1ULL << bs
, ibs
, tx
);
681 dmu_objset_name(os
, osname
);
682 fatal(0, "dmu_object_set_blocksize('%s', %llu, %d, %d) = %d",
683 osname
, object
, 1 << bs
, ibs
, error
);
688 ztest_random_checksum(void)
693 checksum
= ztest_random(ZIO_CHECKSUM_FUNCTIONS
);
694 } while (zio_checksum_table
[checksum
].ci_zbt
);
696 if (checksum
== ZIO_CHECKSUM_OFF
)
697 checksum
= ZIO_CHECKSUM_ON
;
703 ztest_random_compress(void)
705 return ((uint8_t)ztest_random(ZIO_COMPRESS_FUNCTIONS
));
708 typedef struct ztest_replay
{
714 ztest_replay_create(ztest_replay_t
*zr
, lr_create_t
*lr
, boolean_t byteswap
)
716 objset_t
*os
= zr
->zr_os
;
721 byteswap_uint64_array(lr
, sizeof (*lr
));
723 tx
= dmu_tx_create(os
);
724 dmu_tx_hold_bonus(tx
, DMU_NEW_OBJECT
);
725 error
= dmu_tx_assign(tx
, zr
->zr_assign
);
731 error
= dmu_object_claim(os
, lr
->lr_doid
, lr
->lr_mode
, 0,
733 ASSERT3U(error
, ==, 0);
736 if (zopt_verbose
>= 5) {
737 char osname
[MAXNAMELEN
];
738 dmu_objset_name(os
, osname
);
739 (void) printf("replay create of %s object %llu"
740 " in txg %llu = %d\n",
741 osname
, (u_longlong_t
)lr
->lr_doid
,
742 (u_longlong_t
)zr
->zr_assign
, error
);
749 ztest_replay_remove(ztest_replay_t
*zr
, lr_remove_t
*lr
, boolean_t byteswap
)
751 objset_t
*os
= zr
->zr_os
;
756 byteswap_uint64_array(lr
, sizeof (*lr
));
758 tx
= dmu_tx_create(os
);
759 dmu_tx_hold_free(tx
, lr
->lr_doid
, 0, DMU_OBJECT_END
);
760 error
= dmu_tx_assign(tx
, zr
->zr_assign
);
766 error
= dmu_object_free(os
, lr
->lr_doid
, tx
);
772 zil_replay_func_t
*ztest_replay_vector
[TX_MAX_TYPE
] = {
773 NULL
, /* 0 no such transaction type */
774 ztest_replay_create
, /* TX_CREATE */
776 NULL
, /* TX_MKXATTR */
777 NULL
, /* TX_SYMLINK */
778 ztest_replay_remove
, /* TX_REMOVE */
781 NULL
, /* TX_RENAME */
783 NULL
, /* TX_TRUNCATE */
784 NULL
, /* TX_SETATTR */
789 * Verify that we can't destroy an active pool, create an existing pool,
790 * or create a pool with a bad vdev spec.
793 ztest_spa_create_destroy(ztest_args_t
*za
)
800 * Attempt to create using a bad file.
802 nvroot
= make_vdev_root(0, 0, 0, 0, 1);
803 error
= spa_create("ztest_bad_file", nvroot
, NULL
, NULL
);
806 fatal(0, "spa_create(bad_file) = %d", error
);
809 * Attempt to create using a bad mirror.
811 nvroot
= make_vdev_root(0, 0, 0, 2, 1);
812 error
= spa_create("ztest_bad_mirror", nvroot
, NULL
, NULL
);
815 fatal(0, "spa_create(bad_mirror) = %d", error
);
818 * Attempt to create an existing pool. It shouldn't matter
819 * what's in the nvroot; we should fail with EEXIST.
821 (void) rw_rdlock(&ztest_shared
->zs_name_lock
);
822 nvroot
= make_vdev_root(0, 0, 0, 0, 1);
823 error
= spa_create(za
->za_pool
, nvroot
, NULL
, NULL
);
826 fatal(0, "spa_create(whatever) = %d", error
);
828 error
= spa_open(za
->za_pool
, &spa
, FTAG
);
830 fatal(0, "spa_open() = %d", error
);
832 error
= spa_destroy(za
->za_pool
);
834 fatal(0, "spa_destroy() = %d", error
);
836 spa_close(spa
, FTAG
);
837 (void) rw_unlock(&ztest_shared
->zs_name_lock
);
841 * Verify that vdev_add() works as expected.
844 ztest_vdev_add_remove(ztest_args_t
*za
)
846 spa_t
*spa
= za
->za_spa
;
847 uint64_t leaves
= MAX(zopt_mirrors
, 1) * zopt_raidz
;
851 if (zopt_verbose
>= 6)
852 (void) printf("adding vdev\n");
854 (void) mutex_lock(&ztest_shared
->zs_vdev_lock
);
856 spa_config_enter(spa
, RW_READER
, FTAG
);
858 ztest_shared
->zs_vdev_primaries
=
859 spa
->spa_root_vdev
->vdev_children
* leaves
;
861 spa_config_exit(spa
, FTAG
);
864 * Make 1/4 of the devices be log devices.
866 nvroot
= make_vdev_root(zopt_vdev_size
,
867 ztest_random(4) == 0, zopt_raidz
, zopt_mirrors
, 1);
869 error
= spa_vdev_add(spa
, nvroot
);
872 (void) mutex_unlock(&ztest_shared
->zs_vdev_lock
);
875 ztest_record_enospc("spa_vdev_add");
877 fatal(0, "spa_vdev_add() = %d", error
);
879 if (zopt_verbose
>= 6)
880 (void) printf("spa_vdev_add = %d, as expected\n", error
);
884 vdev_lookup_by_path(vdev_t
*vd
, const char *path
)
889 if (vd
->vdev_path
!= NULL
) {
890 if (vd
->vdev_wholedisk
== 1) {
892 * For whole disks, the internal path has 's0', but the
893 * path passed in by the user doesn't.
895 if (strlen(path
) == strlen(vd
->vdev_path
) - 2 &&
896 strncmp(path
, vd
->vdev_path
, strlen(path
)) == 0)
898 } else if (strcmp(path
, vd
->vdev_path
) == 0) {
903 for (c
= 0; c
< vd
->vdev_children
; c
++)
904 if ((mvd
= vdev_lookup_by_path(vd
->vdev_child
[c
], path
)) !=
912 * Verify that we can attach and detach devices.
915 ztest_vdev_attach_detach(ztest_args_t
*za
)
917 spa_t
*spa
= za
->za_spa
;
918 vdev_t
*rvd
= spa
->spa_root_vdev
;
919 vdev_t
*oldvd
, *newvd
, *pvd
;
920 nvlist_t
*root
, *file
;
921 uint64_t leaves
= MAX(zopt_mirrors
, 1) * zopt_raidz
;
923 uint64_t ashift
= ztest_get_ashift();
924 size_t oldsize
, newsize
;
925 char oldpath
[MAXPATHLEN
], newpath
[MAXPATHLEN
];
927 int error
, expected_error
;
930 (void) mutex_lock(&ztest_shared
->zs_vdev_lock
);
932 spa_config_enter(spa
, RW_READER
, FTAG
);
935 * Decide whether to do an attach or a replace.
937 replacing
= ztest_random(2);
940 * Pick a random top-level vdev.
942 top
= ztest_random(rvd
->vdev_children
);
945 * Pick a random leaf within it.
947 leaf
= ztest_random(leaves
);
950 * Generate the path to this leaf. The filename will end with 'a'.
951 * We'll alternate replacements with a filename that ends with 'b'.
953 (void) snprintf(oldpath
, sizeof (oldpath
),
954 ztest_dev_template
, zopt_dir
, zopt_pool
, top
* leaves
+ leaf
);
956 bcopy(oldpath
, newpath
, MAXPATHLEN
);
959 * If the 'a' file isn't part of the pool, the 'b' file must be.
961 if (vdev_lookup_by_path(rvd
, oldpath
) == NULL
)
962 oldpath
[strlen(oldpath
) - 1] = 'b';
964 newpath
[strlen(newpath
) - 1] = 'b';
967 * Now oldpath represents something that's already in the pool,
968 * and newpath is the thing we'll try to attach.
970 oldvd
= vdev_lookup_by_path(rvd
, oldpath
);
971 newvd
= vdev_lookup_by_path(rvd
, newpath
);
972 ASSERT(oldvd
!= NULL
);
973 pvd
= oldvd
->vdev_parent
;
976 * Make newsize a little bigger or smaller than oldsize.
977 * If it's smaller, the attach should fail.
978 * If it's larger, and we're doing a replace,
979 * we should get dynamic LUN growth when we're done.
981 oldsize
= vdev_get_rsize(oldvd
);
982 newsize
= 10 * oldsize
/ (9 + ztest_random(3));
985 * If pvd is not a mirror or root, the attach should fail with ENOTSUP,
986 * unless it's a replace; in that case any non-replacing parent is OK.
988 * If newvd is already part of the pool, it should fail with EBUSY.
990 * If newvd is too small, it should fail with EOVERFLOW.
993 expected_error
= EBUSY
;
994 else if (pvd
->vdev_ops
!= &vdev_mirror_ops
&&
995 pvd
->vdev_ops
!= &vdev_root_ops
&&
996 (!replacing
|| pvd
->vdev_ops
== &vdev_replacing_ops
))
997 expected_error
= ENOTSUP
;
998 else if (newsize
< oldsize
)
999 expected_error
= EOVERFLOW
;
1000 else if (ashift
> oldvd
->vdev_top
->vdev_ashift
)
1001 expected_error
= EDOM
;
1006 * If newvd isn't already part of the pool, create it.
1008 if (newvd
== NULL
) {
1009 fd
= open(newpath
, O_RDWR
| O_CREAT
| O_TRUNC
, 0666);
1011 fatal(1, "can't open %s", newpath
);
1012 if (ftruncate(fd
, newsize
) != 0)
1013 fatal(1, "can't ftruncate %s", newpath
);
1017 spa_config_exit(spa
, FTAG
);
1020 * Build the nvlist describing newpath.
1022 VERIFY(nvlist_alloc(&file
, NV_UNIQUE_NAME
, 0) == 0);
1023 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_FILE
) == 0);
1024 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_PATH
, newpath
) == 0);
1025 VERIFY(nvlist_add_uint64(file
, ZPOOL_CONFIG_ASHIFT
, ashift
) == 0);
1027 VERIFY(nvlist_alloc(&root
, NV_UNIQUE_NAME
, 0) == 0);
1028 VERIFY(nvlist_add_string(root
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_ROOT
) == 0);
1029 VERIFY(nvlist_add_nvlist_array(root
, ZPOOL_CONFIG_CHILDREN
,
1032 error
= spa_vdev_attach(spa
, oldvd
->vdev_guid
, root
, replacing
);
1038 * If our parent was the replacing vdev, but the replace completed,
1039 * then instead of failing with ENOTSUP we may either succeed,
1040 * fail with ENODEV, or fail with EOVERFLOW.
1042 if (expected_error
== ENOTSUP
&&
1043 (error
== 0 || error
== ENODEV
|| error
== EOVERFLOW
))
1044 expected_error
= error
;
1047 * If someone grew the LUN, the replacement may be too small.
1049 if (error
== EOVERFLOW
)
1050 expected_error
= error
;
1052 if (error
!= expected_error
) {
1053 fatal(0, "attach (%s, %s, %d) returned %d, expected %d",
1054 oldpath
, newpath
, replacing
, error
, expected_error
);
1057 (void) mutex_unlock(&ztest_shared
->zs_vdev_lock
);
1061 * Verify that dynamic LUN growth works as expected.
1065 ztest_vdev_LUN_growth(ztest_args_t
*za
)
1067 spa_t
*spa
= za
->za_spa
;
1068 char dev_name
[MAXPATHLEN
];
1069 uint64_t leaves
= MAX(zopt_mirrors
, 1) * zopt_raidz
;
1074 (void) mutex_lock(&ztest_shared
->zs_vdev_lock
);
1077 * Pick a random leaf vdev.
1079 spa_config_enter(spa
, RW_READER
, FTAG
);
1080 vdev
= ztest_random(spa
->spa_root_vdev
->vdev_children
* leaves
);
1081 spa_config_exit(spa
, FTAG
);
1083 (void) sprintf(dev_name
, ztest_dev_template
, zopt_dir
, zopt_pool
, vdev
);
1085 if ((fd
= open(dev_name
, O_RDWR
)) != -1) {
1087 * Determine the size.
1089 fsize
= lseek(fd
, 0, SEEK_END
);
1092 * If it's less than 2x the original size, grow by around 3%.
1094 if (fsize
< 2 * zopt_vdev_size
) {
1095 size_t newsize
= fsize
+ ztest_random(fsize
/ 32);
1096 (void) ftruncate(fd
, newsize
);
1097 if (zopt_verbose
>= 6) {
1098 (void) printf("%s grew from %lu to %lu bytes\n",
1099 dev_name
, (ulong_t
)fsize
, (ulong_t
)newsize
);
1105 (void) mutex_unlock(&ztest_shared
->zs_vdev_lock
);
1110 ztest_create_cb(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
)
1113 * Create the directory object.
1115 VERIFY(dmu_object_claim(os
, ZTEST_DIROBJ
,
1116 DMU_OT_UINT64_OTHER
, ZTEST_DIROBJ_BLOCKSIZE
,
1117 DMU_OT_UINT64_OTHER
, 5 * sizeof (ztest_block_tag_t
), tx
) == 0);
1119 VERIFY(zap_create_claim(os
, ZTEST_MICROZAP_OBJ
,
1120 DMU_OT_ZAP_OTHER
, DMU_OT_NONE
, 0, tx
) == 0);
1122 VERIFY(zap_create_claim(os
, ZTEST_FATZAP_OBJ
,
1123 DMU_OT_ZAP_OTHER
, DMU_OT_NONE
, 0, tx
) == 0);
1127 ztest_destroy_cb(char *name
, void *arg
)
1129 ztest_args_t
*za
= arg
;
1131 dmu_object_info_t
*doi
= &za
->za_doi
;
1135 * Verify that the dataset contains a directory object.
1137 error
= dmu_objset_open(name
, DMU_OST_OTHER
,
1138 DS_MODE_STANDARD
| DS_MODE_READONLY
, &os
);
1139 ASSERT3U(error
, ==, 0);
1140 error
= dmu_object_info(os
, ZTEST_DIROBJ
, doi
);
1141 if (error
!= ENOENT
) {
1142 /* We could have crashed in the middle of destroying it */
1143 ASSERT3U(error
, ==, 0);
1144 ASSERT3U(doi
->doi_type
, ==, DMU_OT_UINT64_OTHER
);
1145 ASSERT3S(doi
->doi_physical_blks
, >=, 0);
1147 dmu_objset_close(os
);
1150 * Destroy the dataset.
1152 error
= dmu_objset_destroy(name
);
1153 ASSERT3U(error
, ==, 0);
1158 * Verify that dmu_objset_{create,destroy,open,close} work as expected.
1161 ztest_log_create(zilog_t
*zilog
, dmu_tx_t
*tx
, uint64_t object
, int mode
)
1168 (void) sprintf(name
, "ZOBJ_%llu", (u_longlong_t
)object
);
1169 namesize
= strlen(name
) + 1;
1171 itx
= zil_itx_create(TX_CREATE
, sizeof (*lr
) + namesize
+
1172 ztest_random(ZIL_MAX_BLKSZ
));
1173 lr
= (lr_create_t
*)&itx
->itx_lr
;
1174 bzero(lr
+ 1, lr
->lr_common
.lrc_reclen
- sizeof (*lr
));
1175 lr
->lr_doid
= object
;
1180 lr
->lr_gen
= dmu_tx_get_txg(tx
);
1181 lr
->lr_crtime
[0] = time(NULL
);
1182 lr
->lr_crtime
[1] = 0;
1184 bcopy(name
, (char *)(lr
+ 1), namesize
);
1186 return (zil_itx_assign(zilog
, itx
, tx
));
1190 ztest_dmu_objset_create_destroy(ztest_args_t
*za
)
1195 int mode
, basemode
, expected_error
;
1201 (void) rw_rdlock(&ztest_shared
->zs_name_lock
);
1202 (void) snprintf(name
, 100, "%s/%s_temp_%llu", za
->za_pool
, za
->za_pool
,
1203 (u_longlong_t
)za
->za_instance
);
1205 basemode
= DS_MODE_LEVEL(za
->za_instance
);
1206 if (basemode
== DS_MODE_NONE
)
1210 * If this dataset exists from a previous run, process its replay log
1211 * half of the time. If we don't replay it, then dmu_objset_destroy()
1212 * (invoked from ztest_destroy_cb() below) should just throw it away.
1214 if (ztest_random(2) == 0 &&
1215 dmu_objset_open(name
, DMU_OST_OTHER
, DS_MODE_PRIMARY
, &os
) == 0) {
1217 zil_replay(os
, &zr
, &zr
.zr_assign
, ztest_replay_vector
);
1218 dmu_objset_close(os
);
1222 * There may be an old instance of the dataset we're about to
1223 * create lying around from a previous run. If so, destroy it
1224 * and all of its snapshots.
1226 (void) dmu_objset_find(name
, ztest_destroy_cb
, za
,
1227 DS_FIND_CHILDREN
| DS_FIND_SNAPSHOTS
);
1230 * Verify that the destroyed dataset is no longer in the namespace.
1232 error
= dmu_objset_open(name
, DMU_OST_OTHER
, basemode
, &os
);
1233 if (error
!= ENOENT
)
1234 fatal(1, "dmu_objset_open(%s) found destroyed dataset %p",
1238 * Verify that we can create a new dataset.
1240 error
= dmu_objset_create(name
, DMU_OST_OTHER
, NULL
, 0,
1241 ztest_create_cb
, NULL
);
1243 if (error
== ENOSPC
) {
1244 ztest_record_enospc("dmu_objset_create");
1245 (void) rw_unlock(&ztest_shared
->zs_name_lock
);
1248 fatal(0, "dmu_objset_create(%s) = %d", name
, error
);
1251 error
= dmu_objset_open(name
, DMU_OST_OTHER
, basemode
, &os
);
1253 fatal(0, "dmu_objset_open(%s) = %d", name
, error
);
1257 * Open the intent log for it.
1259 zilog
= zil_open(os
, NULL
);
1262 * Put a random number of objects in there.
1264 objects
= ztest_random(20);
1266 while (objects
-- != 0) {
1268 dmu_tx_t
*tx
= dmu_tx_create(os
);
1269 dmu_tx_hold_write(tx
, DMU_NEW_OBJECT
, 0, sizeof (name
));
1270 error
= dmu_tx_assign(tx
, TXG_WAIT
);
1274 object
= dmu_object_alloc(os
, DMU_OT_UINT64_OTHER
, 0,
1275 DMU_OT_NONE
, 0, tx
);
1276 ztest_set_random_blocksize(os
, object
, tx
);
1277 seq
= ztest_log_create(zilog
, tx
, object
,
1278 DMU_OT_UINT64_OTHER
);
1279 dmu_write(os
, object
, 0, sizeof (name
), name
, tx
);
1282 if (ztest_random(5) == 0) {
1283 zil_commit(zilog
, seq
, object
);
1285 if (ztest_random(100) == 0) {
1286 error
= zil_suspend(zilog
);
1294 * Verify that we cannot create an existing dataset.
1296 error
= dmu_objset_create(name
, DMU_OST_OTHER
, NULL
, 0, NULL
, NULL
);
1297 if (error
!= EEXIST
)
1298 fatal(0, "created existing dataset, error = %d", error
);
1301 * Verify that multiple dataset opens are allowed, but only when
1302 * the new access mode is compatible with the base mode.
1303 * We use a mixture of typed and typeless opens, and when the
1304 * open succeeds, verify that the discovered type is correct.
1306 for (mode
= DS_MODE_STANDARD
; mode
< DS_MODE_LEVELS
; mode
++) {
1308 error
= dmu_objset_open(name
, DMU_OST_OTHER
, mode
, &os2
);
1309 expected_error
= (basemode
+ mode
< DS_MODE_LEVELS
) ? 0 : EBUSY
;
1310 if (error
!= expected_error
)
1311 fatal(0, "dmu_objset_open('%s') = %d, expected %d",
1312 name
, error
, expected_error
);
1314 dmu_objset_close(os2
);
1318 dmu_objset_close(os
);
1320 error
= dmu_objset_destroy(name
);
1322 fatal(0, "dmu_objset_destroy(%s) = %d", name
, error
);
1324 (void) rw_unlock(&ztest_shared
->zs_name_lock
);
1328 * Verify that dmu_snapshot_{create,destroy,open,close} work as expected.
1331 ztest_dmu_snapshot_create_destroy(ztest_args_t
*za
)
1334 objset_t
*os
= za
->za_os
;
1336 char osname
[MAXNAMELEN
];
1338 (void) rw_rdlock(&ztest_shared
->zs_name_lock
);
1339 dmu_objset_name(os
, osname
);
1340 (void) snprintf(snapname
, 100, "%s@%llu", osname
,
1341 (u_longlong_t
)za
->za_instance
);
1343 error
= dmu_objset_destroy(snapname
);
1344 if (error
!= 0 && error
!= ENOENT
)
1345 fatal(0, "dmu_objset_destroy() = %d", error
);
1346 error
= dmu_objset_snapshot(osname
, strchr(snapname
, '@')+1, FALSE
);
1347 if (error
== ENOSPC
)
1348 ztest_record_enospc("dmu_take_snapshot");
1349 else if (error
!= 0 && error
!= EEXIST
)
1350 fatal(0, "dmu_take_snapshot() = %d", error
);
1351 (void) rw_unlock(&ztest_shared
->zs_name_lock
);
1354 #define ZTEST_TRAVERSE_BLOCKS 1000
1357 ztest_blk_cb(traverse_blk_cache_t
*bc
, spa_t
*spa
, void *arg
)
1359 ztest_args_t
*za
= arg
;
1360 zbookmark_t
*zb
= &bc
->bc_bookmark
;
1361 blkptr_t
*bp
= &bc
->bc_blkptr
;
1362 dnode_phys_t
*dnp
= bc
->bc_dnode
;
1363 traverse_handle_t
*th
= za
->za_th
;
1364 uint64_t size
= BP_GET_LSIZE(bp
);
1367 * Level -1 indicates the objset_phys_t or something in its intent log.
1369 if (zb
->zb_level
== -1) {
1370 if (BP_GET_TYPE(bp
) == DMU_OT_OBJSET
) {
1371 ASSERT3U(zb
->zb_object
, ==, 0);
1372 ASSERT3U(zb
->zb_blkid
, ==, 0);
1373 ASSERT3U(size
, ==, sizeof (objset_phys_t
));
1375 } else if (BP_GET_TYPE(bp
) == DMU_OT_INTENT_LOG
) {
1376 ASSERT3U(zb
->zb_object
, ==, 0);
1377 ASSERT3U(zb
->zb_blkid
, >, za
->za_zil_seq
);
1378 za
->za_zil_seq
= zb
->zb_blkid
;
1380 ASSERT3U(zb
->zb_object
, !=, 0); /* lr_write_t */
1386 ASSERT(dnp
!= NULL
);
1392 * Once in a while, abort the traverse. We only do this to odd
1393 * instance numbers to ensure that even ones can run to completion.
1395 if ((za
->za_instance
& 1) && ztest_random(10000) == 0)
1398 if (bp
->blk_birth
== 0) {
1399 ASSERT(th
->th_advance
& ADVANCE_HOLES
);
1403 if (zb
->zb_level
== 0 && !(th
->th_advance
& ADVANCE_DATA
) &&
1404 bc
== &th
->th_cache
[ZB_DN_CACHE
][0]) {
1405 ASSERT(bc
->bc_data
== NULL
);
1409 ASSERT(bc
->bc_data
!= NULL
);
1412 * This is an expensive question, so don't ask it too often.
1414 if (((za
->za_random
^ th
->th_callbacks
) & 0xff) == 0) {
1415 void *xbuf
= umem_alloc(size
, UMEM_NOFAIL
);
1416 if (arc_tryread(spa
, bp
, xbuf
) == 0) {
1417 ASSERT(bcmp(bc
->bc_data
, xbuf
, size
) == 0);
1419 umem_free(xbuf
, size
);
1422 if (zb
->zb_level
> 0) {
1423 ASSERT3U(size
, ==, 1ULL << dnp
->dn_indblkshift
);
1427 ASSERT(zb
->zb_level
== 0);
1428 ASSERT3U(size
, ==, dnp
->dn_datablkszsec
<< DEV_BSHIFT
);
1434 * Verify that live pool traversal works.
1437 ztest_traverse(ztest_args_t
*za
)
1439 spa_t
*spa
= za
->za_spa
;
1440 traverse_handle_t
*th
= za
->za_th
;
1442 uint64_t cbstart
, cblimit
;
1447 if (ztest_random(2) == 0)
1448 advance
|= ADVANCE_PRE
;
1450 if (ztest_random(2) == 0)
1451 advance
|= ADVANCE_PRUNE
;
1453 if (ztest_random(2) == 0)
1454 advance
|= ADVANCE_DATA
;
1456 if (ztest_random(2) == 0)
1457 advance
|= ADVANCE_HOLES
;
1459 if (ztest_random(2) == 0)
1460 advance
|= ADVANCE_ZIL
;
1462 th
= za
->za_th
= traverse_init(spa
, ztest_blk_cb
, za
, advance
,
1465 traverse_add_pool(th
, 0, -1ULL);
1468 advance
= th
->th_advance
;
1469 cbstart
= th
->th_callbacks
;
1470 cblimit
= cbstart
+ ((advance
& ADVANCE_DATA
) ? 100 : 1000);
1472 while ((rc
= traverse_more(th
)) == EAGAIN
&& th
->th_callbacks
< cblimit
)
1475 if (zopt_verbose
>= 5)
1476 (void) printf("traverse %s%s%s%s %llu blocks to "
1477 "<%llu, %llu, %lld, %llx>%s\n",
1478 (advance
& ADVANCE_PRE
) ? "pre" : "post",
1479 (advance
& ADVANCE_PRUNE
) ? "|prune" : "",
1480 (advance
& ADVANCE_DATA
) ? "|data" : "",
1481 (advance
& ADVANCE_HOLES
) ? "|holes" : "",
1482 (u_longlong_t
)(th
->th_callbacks
- cbstart
),
1483 (u_longlong_t
)th
->th_lastcb
.zb_objset
,
1484 (u_longlong_t
)th
->th_lastcb
.zb_object
,
1485 (u_longlong_t
)th
->th_lastcb
.zb_level
,
1486 (u_longlong_t
)th
->th_lastcb
.zb_blkid
,
1487 rc
== 0 ? " [done]" :
1488 rc
== EINTR
? " [aborted]" :
1493 if (rc
!= 0 && rc
!= EINTR
)
1494 fatal(0, "traverse_more(%p) = %d", th
, rc
);
1501 * Verify that dmu_object_{alloc,free} work as expected.
1504 ztest_dmu_object_alloc_free(ztest_args_t
*za
)
1506 objset_t
*os
= za
->za_os
;
1509 uint64_t batchobj
, object
, batchsize
, endoff
, temp
;
1510 int b
, c
, error
, bonuslen
;
1511 dmu_object_info_t
*doi
= &za
->za_doi
;
1512 char osname
[MAXNAMELEN
];
1514 dmu_objset_name(os
, osname
);
1520 * Create a batch object if necessary, and record it in the directory.
1522 VERIFY(0 == dmu_read(os
, ZTEST_DIROBJ
, za
->za_diroff
,
1523 sizeof (uint64_t), &batchobj
));
1524 if (batchobj
== 0) {
1525 tx
= dmu_tx_create(os
);
1526 dmu_tx_hold_write(tx
, ZTEST_DIROBJ
, za
->za_diroff
,
1528 dmu_tx_hold_bonus(tx
, DMU_NEW_OBJECT
);
1529 error
= dmu_tx_assign(tx
, TXG_WAIT
);
1531 ztest_record_enospc("create a batch object");
1535 batchobj
= dmu_object_alloc(os
, DMU_OT_UINT64_OTHER
, 0,
1536 DMU_OT_NONE
, 0, tx
);
1537 ztest_set_random_blocksize(os
, batchobj
, tx
);
1538 dmu_write(os
, ZTEST_DIROBJ
, za
->za_diroff
,
1539 sizeof (uint64_t), &batchobj
, tx
);
1544 * Destroy the previous batch of objects.
1546 for (b
= 0; b
< batchsize
; b
++) {
1547 VERIFY(0 == dmu_read(os
, batchobj
, b
* sizeof (uint64_t),
1548 sizeof (uint64_t), &object
));
1552 * Read and validate contents.
1553 * We expect the nth byte of the bonus buffer to be n.
1555 VERIFY(0 == dmu_bonus_hold(os
, object
, FTAG
, &db
));
1558 dmu_object_info_from_db(db
, doi
);
1559 ASSERT(doi
->doi_type
== DMU_OT_UINT64_OTHER
);
1560 ASSERT(doi
->doi_bonus_type
== DMU_OT_PLAIN_OTHER
);
1561 ASSERT3S(doi
->doi_physical_blks
, >=, 0);
1563 bonuslen
= doi
->doi_bonus_size
;
1565 for (c
= 0; c
< bonuslen
; c
++) {
1566 if (((uint8_t *)db
->db_data
)[c
] !=
1567 (uint8_t)(c
+ bonuslen
)) {
1569 "bad bonus: %s, obj %llu, off %d: %u != %u",
1571 ((uint8_t *)db
->db_data
)[c
],
1572 (uint8_t)(c
+ bonuslen
));
1576 dmu_buf_rele(db
, FTAG
);
1580 * We expect the word at endoff to be our object number.
1582 VERIFY(0 == dmu_read(os
, object
, endoff
,
1583 sizeof (uint64_t), &temp
));
1585 if (temp
!= object
) {
1586 fatal(0, "bad data in %s, got %llu, expected %llu",
1587 osname
, temp
, object
);
1591 * Destroy old object and clear batch entry.
1593 tx
= dmu_tx_create(os
);
1594 dmu_tx_hold_write(tx
, batchobj
,
1595 b
* sizeof (uint64_t), sizeof (uint64_t));
1596 dmu_tx_hold_free(tx
, object
, 0, DMU_OBJECT_END
);
1597 error
= dmu_tx_assign(tx
, TXG_WAIT
);
1599 ztest_record_enospc("free object");
1603 error
= dmu_object_free(os
, object
, tx
);
1605 fatal(0, "dmu_object_free('%s', %llu) = %d",
1606 osname
, object
, error
);
1610 dmu_object_set_checksum(os
, batchobj
,
1611 ztest_random_checksum(), tx
);
1612 dmu_object_set_compress(os
, batchobj
,
1613 ztest_random_compress(), tx
);
1615 dmu_write(os
, batchobj
, b
* sizeof (uint64_t),
1616 sizeof (uint64_t), &object
, tx
);
1622 * Before creating the new batch of objects, generate a bunch of churn.
1624 for (b
= ztest_random(100); b
> 0; b
--) {
1625 tx
= dmu_tx_create(os
);
1626 dmu_tx_hold_bonus(tx
, DMU_NEW_OBJECT
);
1627 error
= dmu_tx_assign(tx
, TXG_WAIT
);
1629 ztest_record_enospc("churn objects");
1633 object
= dmu_object_alloc(os
, DMU_OT_UINT64_OTHER
, 0,
1634 DMU_OT_NONE
, 0, tx
);
1635 ztest_set_random_blocksize(os
, object
, tx
);
1636 error
= dmu_object_free(os
, object
, tx
);
1638 fatal(0, "dmu_object_free('%s', %llu) = %d",
1639 osname
, object
, error
);
1645 * Create a new batch of objects with randomly chosen
1646 * blocksizes and record them in the batch directory.
1648 for (b
= 0; b
< batchsize
; b
++) {
1649 uint32_t va_blksize
;
1650 u_longlong_t va_nblocks
;
1652 tx
= dmu_tx_create(os
);
1653 dmu_tx_hold_write(tx
, batchobj
, b
* sizeof (uint64_t),
1655 dmu_tx_hold_bonus(tx
, DMU_NEW_OBJECT
);
1656 dmu_tx_hold_write(tx
, DMU_NEW_OBJECT
, endoff
,
1658 error
= dmu_tx_assign(tx
, TXG_WAIT
);
1660 ztest_record_enospc("create batchobj");
1664 bonuslen
= (int)ztest_random(dmu_bonus_max()) + 1;
1666 object
= dmu_object_alloc(os
, DMU_OT_UINT64_OTHER
, 0,
1667 DMU_OT_PLAIN_OTHER
, bonuslen
, tx
);
1669 ztest_set_random_blocksize(os
, object
, tx
);
1671 dmu_object_set_checksum(os
, object
,
1672 ztest_random_checksum(), tx
);
1673 dmu_object_set_compress(os
, object
,
1674 ztest_random_compress(), tx
);
1676 dmu_write(os
, batchobj
, b
* sizeof (uint64_t),
1677 sizeof (uint64_t), &object
, tx
);
1680 * Write to both the bonus buffer and the regular data.
1682 VERIFY(dmu_bonus_hold(os
, object
, FTAG
, &db
) == 0);
1684 ASSERT3U(bonuslen
, <=, db
->db_size
);
1686 dmu_object_size_from_db(db
, &va_blksize
, &va_nblocks
);
1687 ASSERT3S(va_nblocks
, >=, 0);
1689 dmu_buf_will_dirty(db
, tx
);
1692 * See comments above regarding the contents of
1693 * the bonus buffer and the word at endoff.
1695 for (c
= 0; c
< bonuslen
; c
++)
1696 ((uint8_t *)db
->db_data
)[c
] = (uint8_t)(c
+ bonuslen
);
1698 dmu_buf_rele(db
, FTAG
);
1702 * Write to a large offset to increase indirection.
1704 dmu_write(os
, object
, endoff
, sizeof (uint64_t), &object
, tx
);
1711 * Verify that dmu_{read,write} work as expected.
1713 typedef struct bufwad
{
1719 typedef struct dmu_read_write_dir
{
1720 uint64_t dd_packobj
;
1723 } dmu_read_write_dir_t
;
1726 ztest_dmu_read_write(ztest_args_t
*za
)
1728 objset_t
*os
= za
->za_os
;
1729 dmu_read_write_dir_t dd
;
1731 int i
, freeit
, error
;
1733 bufwad_t
*packbuf
, *bigbuf
, *pack
, *bigH
, *bigT
;
1734 uint64_t packoff
, packsize
, bigoff
, bigsize
;
1735 uint64_t regions
= 997;
1736 uint64_t stride
= 123456789ULL;
1737 uint64_t width
= 40;
1738 int free_percent
= 5;
1741 * This test uses two objects, packobj and bigobj, that are always
1742 * updated together (i.e. in the same tx) so that their contents are
1743 * in sync and can be compared. Their contents relate to each other
1744 * in a simple way: packobj is a dense array of 'bufwad' structures,
1745 * while bigobj is a sparse array of the same bufwads. Specifically,
1746 * for any index n, there are three bufwads that should be identical:
1748 * packobj, at offset n * sizeof (bufwad_t)
1749 * bigobj, at the head of the nth chunk
1750 * bigobj, at the tail of the nth chunk
1752 * The chunk size is arbitrary. It doesn't have to be a power of two,
1753 * and it doesn't have any relation to the object blocksize.
1754 * The only requirement is that it can hold at least two bufwads.
1756 * Normally, we write the bufwad to each of these locations.
1757 * However, free_percent of the time we instead write zeroes to
1758 * packobj and perform a dmu_free_range() on bigobj. By comparing
1759 * bigobj to packobj, we can verify that the DMU is correctly
1760 * tracking which parts of an object are allocated and free,
1761 * and that the contents of the allocated blocks are correct.
1765 * Read the directory info. If it's the first time, set things up.
1767 VERIFY(0 == dmu_read(os
, ZTEST_DIROBJ
, za
->za_diroff
,
1769 if (dd
.dd_chunk
== 0) {
1770 ASSERT(dd
.dd_packobj
== 0);
1771 ASSERT(dd
.dd_bigobj
== 0);
1772 tx
= dmu_tx_create(os
);
1773 dmu_tx_hold_write(tx
, ZTEST_DIROBJ
, za
->za_diroff
, sizeof (dd
));
1774 dmu_tx_hold_bonus(tx
, DMU_NEW_OBJECT
);
1775 error
= dmu_tx_assign(tx
, TXG_WAIT
);
1777 ztest_record_enospc("create r/w directory");
1782 dd
.dd_packobj
= dmu_object_alloc(os
, DMU_OT_UINT64_OTHER
, 0,
1783 DMU_OT_NONE
, 0, tx
);
1784 dd
.dd_bigobj
= dmu_object_alloc(os
, DMU_OT_UINT64_OTHER
, 0,
1785 DMU_OT_NONE
, 0, tx
);
1786 dd
.dd_chunk
= (1000 + ztest_random(1000)) * sizeof (uint64_t);
1788 ztest_set_random_blocksize(os
, dd
.dd_packobj
, tx
);
1789 ztest_set_random_blocksize(os
, dd
.dd_bigobj
, tx
);
1791 dmu_write(os
, ZTEST_DIROBJ
, za
->za_diroff
, sizeof (dd
), &dd
,
1797 * Prefetch a random chunk of the big object.
1798 * Our aim here is to get some async reads in flight
1799 * for blocks that we may free below; the DMU should
1800 * handle this race correctly.
1802 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
1803 s
= 1 + ztest_random(2 * width
- 1);
1804 dmu_prefetch(os
, dd
.dd_bigobj
, n
* dd
.dd_chunk
, s
* dd
.dd_chunk
);
1807 * Pick a random index and compute the offsets into packobj and bigobj.
1809 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
1810 s
= 1 + ztest_random(width
- 1);
1812 packoff
= n
* sizeof (bufwad_t
);
1813 packsize
= s
* sizeof (bufwad_t
);
1815 bigoff
= n
* dd
.dd_chunk
;
1816 bigsize
= s
* dd
.dd_chunk
;
1818 packbuf
= umem_alloc(packsize
, UMEM_NOFAIL
);
1819 bigbuf
= umem_alloc(bigsize
, UMEM_NOFAIL
);
1822 * free_percent of the time, free a range of bigobj rather than
1825 freeit
= (ztest_random(100) < free_percent
);
1828 * Read the current contents of our objects.
1830 error
= dmu_read(os
, dd
.dd_packobj
, packoff
, packsize
, packbuf
);
1831 ASSERT3U(error
, ==, 0);
1832 error
= dmu_read(os
, dd
.dd_bigobj
, bigoff
, bigsize
, bigbuf
);
1833 ASSERT3U(error
, ==, 0);
1836 * Get a tx for the mods to both packobj and bigobj.
1838 tx
= dmu_tx_create(os
);
1840 dmu_tx_hold_write(tx
, dd
.dd_packobj
, packoff
, packsize
);
1843 dmu_tx_hold_free(tx
, dd
.dd_bigobj
, bigoff
, bigsize
);
1845 dmu_tx_hold_write(tx
, dd
.dd_bigobj
, bigoff
, bigsize
);
1847 error
= dmu_tx_assign(tx
, TXG_WAIT
);
1850 ztest_record_enospc("dmu r/w range");
1852 umem_free(packbuf
, packsize
);
1853 umem_free(bigbuf
, bigsize
);
1857 txg
= dmu_tx_get_txg(tx
);
1860 * For each index from n to n + s, verify that the existing bufwad
1861 * in packobj matches the bufwads at the head and tail of the
1862 * corresponding chunk in bigobj. Then update all three bufwads
1863 * with the new values we want to write out.
1865 for (i
= 0; i
< s
; i
++) {
1867 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
1869 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* dd
.dd_chunk
);
1871 bigT
= (bufwad_t
*)((char *)bigH
+ dd
.dd_chunk
) - 1;
1873 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
1874 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
1876 if (pack
->bw_txg
> txg
)
1877 fatal(0, "future leak: got %llx, open txg is %llx",
1880 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
1881 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
1882 pack
->bw_index
, n
, i
);
1884 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
1885 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
1887 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
1888 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
1891 bzero(pack
, sizeof (bufwad_t
));
1893 pack
->bw_index
= n
+ i
;
1895 pack
->bw_data
= 1 + ztest_random(-2ULL);
1902 * We've verified all the old bufwads, and made new ones.
1903 * Now write them out.
1905 dmu_write(os
, dd
.dd_packobj
, packoff
, packsize
, packbuf
, tx
);
1908 if (zopt_verbose
>= 6) {
1909 (void) printf("freeing offset %llx size %llx"
1911 (u_longlong_t
)bigoff
,
1912 (u_longlong_t
)bigsize
,
1915 VERIFY(0 == dmu_free_range(os
, dd
.dd_bigobj
, bigoff
,
1918 if (zopt_verbose
>= 6) {
1919 (void) printf("writing offset %llx size %llx"
1921 (u_longlong_t
)bigoff
,
1922 (u_longlong_t
)bigsize
,
1925 dmu_write(os
, dd
.dd_bigobj
, bigoff
, bigsize
, bigbuf
, tx
);
1931 * Sanity check the stuff we just wrote.
1934 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
1935 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
1937 VERIFY(0 == dmu_read(os
, dd
.dd_packobj
, packoff
,
1938 packsize
, packcheck
));
1939 VERIFY(0 == dmu_read(os
, dd
.dd_bigobj
, bigoff
,
1940 bigsize
, bigcheck
));
1942 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
1943 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
1945 umem_free(packcheck
, packsize
);
1946 umem_free(bigcheck
, bigsize
);
1949 umem_free(packbuf
, packsize
);
1950 umem_free(bigbuf
, bigsize
);
1954 ztest_dmu_check_future_leak(ztest_args_t
*za
)
1956 objset_t
*os
= za
->za_os
;
1958 ztest_block_tag_t
*bt
;
1959 dmu_object_info_t
*doi
= &za
->za_doi
;
1962 * Make sure that, if there is a write record in the bonus buffer
1963 * of the ZTEST_DIROBJ, that the txg for this record is <= the
1964 * last synced txg of the pool.
1966 VERIFY(dmu_bonus_hold(os
, ZTEST_DIROBJ
, FTAG
, &db
) == 0);
1968 VERIFY(dmu_object_info(os
, ZTEST_DIROBJ
, doi
) == 0);
1969 ASSERT3U(doi
->doi_bonus_size
, >=, sizeof (*bt
));
1970 ASSERT3U(doi
->doi_bonus_size
, <=, db
->db_size
);
1971 ASSERT3U(doi
->doi_bonus_size
% sizeof (*bt
), ==, 0);
1972 bt
= (void *)((char *)db
->db_data
+ doi
->doi_bonus_size
- sizeof (*bt
));
1973 if (bt
->bt_objset
!= 0) {
1974 ASSERT3U(bt
->bt_objset
, ==, dmu_objset_id(os
));
1975 ASSERT3U(bt
->bt_object
, ==, ZTEST_DIROBJ
);
1976 ASSERT3U(bt
->bt_offset
, ==, -1ULL);
1977 ASSERT3U(bt
->bt_txg
, <, spa_first_txg(za
->za_spa
));
1979 dmu_buf_rele(db
, FTAG
);
1984 ztest_dmu_write_parallel(ztest_args_t
*za
)
1986 objset_t
*os
= za
->za_os
;
1987 ztest_block_tag_t
*rbt
= &za
->za_rbt
;
1988 ztest_block_tag_t
*wbt
= &za
->za_wbt
;
1989 const size_t btsize
= sizeof (ztest_block_tag_t
);
1992 int bs
= ZTEST_DIROBJ_BLOCKSIZE
;
1994 uint64_t off
, txg_how
;
1996 char osname
[MAXNAMELEN
];
1997 char iobuf
[SPA_MAXBLOCKSIZE
];
1998 blkptr_t blk
= { 0 };
2001 dmu_tx_t
*tx
= dmu_tx_create(os
);
2003 dmu_objset_name(os
, osname
);
2006 * Have multiple threads write to large offsets in ZTEST_DIROBJ
2007 * to verify that having multiple threads writing to the same object
2008 * in parallel doesn't cause any trouble.
2010 if (ztest_random(4) == 0) {
2012 * Do the bonus buffer instead of a regular block.
2013 * We need a lock to serialize resize vs. others,
2014 * so we hash on the objset ID.
2016 b
= dmu_objset_id(os
) % ZTEST_SYNC_LOCKS
;
2018 dmu_tx_hold_bonus(tx
, ZTEST_DIROBJ
);
2020 b
= ztest_random(ZTEST_SYNC_LOCKS
);
2021 off
= za
->za_diroff_shared
+ (b
<< SPA_MAXBLOCKSHIFT
);
2022 if (ztest_random(4) == 0) {
2024 dmu_tx_hold_free(tx
, ZTEST_DIROBJ
, off
, bs
);
2026 dmu_tx_hold_write(tx
, ZTEST_DIROBJ
, off
, bs
);
2030 txg_how
= ztest_random(2) == 0 ? TXG_WAIT
: TXG_NOWAIT
;
2031 error
= dmu_tx_assign(tx
, txg_how
);
2033 if (error
== ERESTART
) {
2034 ASSERT(txg_how
== TXG_NOWAIT
);
2037 ztest_record_enospc("dmu write parallel");
2043 lp
= &ztest_shared
->zs_sync_lock
[b
];
2044 (void) mutex_lock(lp
);
2046 wbt
->bt_objset
= dmu_objset_id(os
);
2047 wbt
->bt_object
= ZTEST_DIROBJ
;
2048 wbt
->bt_offset
= off
;
2049 wbt
->bt_txg
= dmu_tx_get_txg(tx
);
2050 wbt
->bt_thread
= za
->za_instance
;
2051 wbt
->bt_seq
= ztest_shared
->zs_seq
[b
]++; /* protected by lp */
2054 dmu_object_info_t
*doi
= &za
->za_doi
;
2057 VERIFY(dmu_bonus_hold(os
, ZTEST_DIROBJ
, FTAG
, &db
) == 0);
2059 dmu_object_info_from_db(db
, doi
);
2060 ASSERT3U(doi
->doi_bonus_size
, <=, db
->db_size
);
2061 ASSERT3U(doi
->doi_bonus_size
, >=, btsize
);
2062 ASSERT3U(doi
->doi_bonus_size
% btsize
, ==, 0);
2063 dboff
= (char *)db
->db_data
+ doi
->doi_bonus_size
- btsize
;
2064 bcopy(dboff
, rbt
, btsize
);
2065 if (rbt
->bt_objset
!= 0) {
2066 ASSERT3U(rbt
->bt_objset
, ==, wbt
->bt_objset
);
2067 ASSERT3U(rbt
->bt_object
, ==, wbt
->bt_object
);
2068 ASSERT3U(rbt
->bt_offset
, ==, wbt
->bt_offset
);
2069 ASSERT3U(rbt
->bt_txg
, <=, wbt
->bt_txg
);
2071 if (ztest_random(10) == 0) {
2072 int newsize
= (ztest_random(db
->db_size
/
2073 btsize
) + 1) * btsize
;
2075 ASSERT3U(newsize
, >=, btsize
);
2076 ASSERT3U(newsize
, <=, db
->db_size
);
2077 VERIFY3U(dmu_set_bonus(db
, newsize
, tx
), ==, 0);
2078 dboff
= (char *)db
->db_data
+ newsize
- btsize
;
2080 dmu_buf_will_dirty(db
, tx
);
2081 bcopy(wbt
, dboff
, btsize
);
2082 dmu_buf_rele(db
, FTAG
);
2084 } else if (do_free
) {
2085 VERIFY(dmu_free_range(os
, ZTEST_DIROBJ
, off
, bs
, tx
) == 0);
2087 dmu_write(os
, ZTEST_DIROBJ
, off
, btsize
, wbt
, tx
);
2090 (void) mutex_unlock(lp
);
2092 if (ztest_random(1000) == 0)
2093 (void) poll(NULL
, 0, 1); /* open dn_notxholds window */
2097 if (ztest_random(10000) == 0)
2098 txg_wait_synced(dmu_objset_pool(os
), wbt
->bt_txg
);
2100 if (off
== -1 || do_free
)
2103 if (ztest_random(2) != 0)
2107 * dmu_sync() the block we just wrote.
2109 (void) mutex_lock(lp
);
2111 blkoff
= P2ALIGN_TYPED(off
, bs
, uint64_t);
2112 error
= dmu_buf_hold(os
, ZTEST_DIROBJ
, blkoff
, FTAG
, &db
);
2115 dprintf("dmu_buf_hold(%s, %d, %llx) = %d\n",
2116 osname
, ZTEST_DIROBJ
, blkoff
, error
);
2117 (void) mutex_unlock(lp
);
2120 blkoff
= off
- blkoff
;
2121 error
= dmu_sync(NULL
, db
, &blk
, wbt
->bt_txg
, NULL
, NULL
);
2122 dmu_buf_rele(db
, FTAG
);
2125 (void) mutex_unlock(lp
);
2128 dprintf("dmu_sync(%s, %d, %llx) = %d\n",
2129 osname
, ZTEST_DIROBJ
, off
, error
);
2133 if (blk
.blk_birth
== 0) /* concurrent free */
2136 txg_suspend(dmu_objset_pool(os
));
2138 ASSERT(blk
.blk_fill
== 1);
2139 ASSERT3U(BP_GET_TYPE(&blk
), ==, DMU_OT_UINT64_OTHER
);
2140 ASSERT3U(BP_GET_LEVEL(&blk
), ==, 0);
2141 ASSERT3U(BP_GET_LSIZE(&blk
), ==, bs
);
2144 * Read the block that dmu_sync() returned to make sure its contents
2145 * match what we wrote. We do this while still txg_suspend()ed
2146 * to ensure that the block can't be reused before we read it.
2148 zb
.zb_objset
= dmu_objset_id(os
);
2149 zb
.zb_object
= ZTEST_DIROBJ
;
2151 zb
.zb_blkid
= off
/ bs
;
2152 error
= zio_wait(zio_read(NULL
, za
->za_spa
, &blk
, iobuf
, bs
,
2153 NULL
, NULL
, ZIO_PRIORITY_SYNC_READ
, ZIO_FLAG_MUSTSUCCEED
, &zb
));
2154 ASSERT3U(error
, ==, 0);
2156 txg_resume(dmu_objset_pool(os
));
2158 bcopy(&iobuf
[blkoff
], rbt
, btsize
);
2160 if (rbt
->bt_objset
== 0) /* concurrent free */
2163 ASSERT3U(rbt
->bt_objset
, ==, wbt
->bt_objset
);
2164 ASSERT3U(rbt
->bt_object
, ==, wbt
->bt_object
);
2165 ASSERT3U(rbt
->bt_offset
, ==, wbt
->bt_offset
);
2168 * The semantic of dmu_sync() is that we always push the most recent
2169 * version of the data, so in the face of concurrent updates we may
2170 * see a newer version of the block. That's OK.
2172 ASSERT3U(rbt
->bt_txg
, >=, wbt
->bt_txg
);
2173 if (rbt
->bt_thread
== wbt
->bt_thread
)
2174 ASSERT3U(rbt
->bt_seq
, ==, wbt
->bt_seq
);
2176 ASSERT3U(rbt
->bt_seq
, >, wbt
->bt_seq
);
2180 * Verify that zap_{create,destroy,add,remove,update} work as expected.
2182 #define ZTEST_ZAP_MIN_INTS 1
2183 #define ZTEST_ZAP_MAX_INTS 4
2184 #define ZTEST_ZAP_MAX_PROPS 1000
2187 ztest_zap(ztest_args_t
*za
)
2189 objset_t
*os
= za
->za_os
;
2191 uint64_t txg
, last_txg
;
2192 uint64_t value
[ZTEST_ZAP_MAX_INTS
];
2193 uint64_t zl_ints
, zl_intsize
, prop
;
2196 char propname
[100], txgname
[100];
2198 char osname
[MAXNAMELEN
];
2199 char *hc
[2] = { "s.acl.h", ".s.open.h.hyLZlg" };
2201 dmu_objset_name(os
, osname
);
2204 * Create a new object if necessary, and record it in the directory.
2206 VERIFY(0 == dmu_read(os
, ZTEST_DIROBJ
, za
->za_diroff
,
2207 sizeof (uint64_t), &object
));
2210 tx
= dmu_tx_create(os
);
2211 dmu_tx_hold_write(tx
, ZTEST_DIROBJ
, za
->za_diroff
,
2213 dmu_tx_hold_zap(tx
, DMU_NEW_OBJECT
, TRUE
, NULL
);
2214 error
= dmu_tx_assign(tx
, TXG_WAIT
);
2216 ztest_record_enospc("create zap test obj");
2220 object
= zap_create(os
, DMU_OT_ZAP_OTHER
, DMU_OT_NONE
, 0, tx
);
2222 fatal(0, "zap_create('%s', %llu) = %d",
2223 osname
, object
, error
);
2225 ASSERT(object
!= 0);
2226 dmu_write(os
, ZTEST_DIROBJ
, za
->za_diroff
,
2227 sizeof (uint64_t), &object
, tx
);
2229 * Generate a known hash collision, and verify that
2230 * we can lookup and remove both entries.
2232 for (i
= 0; i
< 2; i
++) {
2234 error
= zap_add(os
, object
, hc
[i
], sizeof (uint64_t),
2236 ASSERT3U(error
, ==, 0);
2238 for (i
= 0; i
< 2; i
++) {
2239 error
= zap_add(os
, object
, hc
[i
], sizeof (uint64_t),
2241 ASSERT3U(error
, ==, EEXIST
);
2242 error
= zap_length(os
, object
, hc
[i
],
2243 &zl_intsize
, &zl_ints
);
2244 ASSERT3U(error
, ==, 0);
2245 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
2246 ASSERT3U(zl_ints
, ==, 1);
2248 for (i
= 0; i
< 2; i
++) {
2249 error
= zap_remove(os
, object
, hc
[i
], tx
);
2250 ASSERT3U(error
, ==, 0);
2256 ints
= MAX(ZTEST_ZAP_MIN_INTS
, object
% ZTEST_ZAP_MAX_INTS
);
2258 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
2259 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
2260 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
2261 bzero(value
, sizeof (value
));
2265 * If these zap entries already exist, validate their contents.
2267 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
2269 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
2270 ASSERT3U(zl_ints
, ==, 1);
2272 VERIFY(zap_lookup(os
, object
, txgname
, zl_intsize
,
2273 zl_ints
, &last_txg
) == 0);
2275 VERIFY(zap_length(os
, object
, propname
, &zl_intsize
,
2278 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
2279 ASSERT3U(zl_ints
, ==, ints
);
2281 VERIFY(zap_lookup(os
, object
, propname
, zl_intsize
,
2282 zl_ints
, value
) == 0);
2284 for (i
= 0; i
< ints
; i
++) {
2285 ASSERT3U(value
[i
], ==, last_txg
+ object
+ i
);
2288 ASSERT3U(error
, ==, ENOENT
);
2292 * Atomically update two entries in our zap object.
2293 * The first is named txg_%llu, and contains the txg
2294 * in which the property was last updated. The second
2295 * is named prop_%llu, and the nth element of its value
2296 * should be txg + object + n.
2298 tx
= dmu_tx_create(os
);
2299 dmu_tx_hold_zap(tx
, object
, TRUE
, NULL
);
2300 error
= dmu_tx_assign(tx
, TXG_WAIT
);
2302 ztest_record_enospc("create zap entry");
2306 txg
= dmu_tx_get_txg(tx
);
2309 fatal(0, "zap future leak: old %llu new %llu", last_txg
, txg
);
2311 for (i
= 0; i
< ints
; i
++)
2312 value
[i
] = txg
+ object
+ i
;
2314 error
= zap_update(os
, object
, txgname
, sizeof (uint64_t), 1, &txg
, tx
);
2316 fatal(0, "zap_update('%s', %llu, '%s') = %d",
2317 osname
, object
, txgname
, error
);
2319 error
= zap_update(os
, object
, propname
, sizeof (uint64_t),
2322 fatal(0, "zap_update('%s', %llu, '%s') = %d",
2323 osname
, object
, propname
, error
);
2328 * Remove a random pair of entries.
2330 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
2331 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
2332 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
2334 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
2336 if (error
== ENOENT
)
2339 ASSERT3U(error
, ==, 0);
2341 tx
= dmu_tx_create(os
);
2342 dmu_tx_hold_zap(tx
, object
, TRUE
, NULL
);
2343 error
= dmu_tx_assign(tx
, TXG_WAIT
);
2345 ztest_record_enospc("remove zap entry");
2349 error
= zap_remove(os
, object
, txgname
, tx
);
2351 fatal(0, "zap_remove('%s', %llu, '%s') = %d",
2352 osname
, object
, txgname
, error
);
2354 error
= zap_remove(os
, object
, propname
, tx
);
2356 fatal(0, "zap_remove('%s', %llu, '%s') = %d",
2357 osname
, object
, propname
, error
);
2362 * Once in a while, destroy the object.
2364 if (ztest_random(1000) != 0)
2367 tx
= dmu_tx_create(os
);
2368 dmu_tx_hold_write(tx
, ZTEST_DIROBJ
, za
->za_diroff
, sizeof (uint64_t));
2369 dmu_tx_hold_free(tx
, object
, 0, DMU_OBJECT_END
);
2370 error
= dmu_tx_assign(tx
, TXG_WAIT
);
2372 ztest_record_enospc("destroy zap object");
2376 error
= zap_destroy(os
, object
, tx
);
2378 fatal(0, "zap_destroy('%s', %llu) = %d",
2379 osname
, object
, error
);
2381 dmu_write(os
, ZTEST_DIROBJ
, za
->za_diroff
, sizeof (uint64_t),
2387 ztest_zap_parallel(ztest_args_t
*za
)
2389 objset_t
*os
= za
->za_os
;
2390 uint64_t txg
, object
, count
, wsize
, wc
, zl_wsize
, zl_wc
;
2392 int i
, namelen
, error
;
2393 char name
[20], string_value
[20];
2397 * Generate a random name of the form 'xxx.....' where each
2398 * x is a random printable character and the dots are dots.
2399 * There are 94 such characters, and the name length goes from
2400 * 6 to 20, so there are 94^3 * 15 = 12,458,760 possible names.
2402 namelen
= ztest_random(sizeof (name
) - 5) + 5 + 1;
2404 for (i
= 0; i
< 3; i
++)
2405 name
[i
] = '!' + ztest_random('~' - '!' + 1);
2406 for (; i
< namelen
- 1; i
++)
2410 if (ztest_random(2) == 0)
2411 object
= ZTEST_MICROZAP_OBJ
;
2413 object
= ZTEST_FATZAP_OBJ
;
2415 if ((namelen
& 1) || object
== ZTEST_MICROZAP_OBJ
) {
2416 wsize
= sizeof (txg
);
2422 data
= string_value
;
2426 VERIFY(zap_count(os
, object
, &count
) == 0);
2427 ASSERT(count
!= -1ULL);
2430 * Select an operation: length, lookup, add, update, remove.
2432 i
= ztest_random(5);
2435 tx
= dmu_tx_create(os
);
2436 dmu_tx_hold_zap(tx
, object
, TRUE
, NULL
);
2437 error
= dmu_tx_assign(tx
, TXG_WAIT
);
2439 ztest_record_enospc("zap parallel");
2443 txg
= dmu_tx_get_txg(tx
);
2444 bcopy(name
, string_value
, namelen
);
2448 bzero(string_value
, namelen
);
2454 error
= zap_length(os
, object
, name
, &zl_wsize
, &zl_wc
);
2456 ASSERT3U(wsize
, ==, zl_wsize
);
2457 ASSERT3U(wc
, ==, zl_wc
);
2459 ASSERT3U(error
, ==, ENOENT
);
2464 error
= zap_lookup(os
, object
, name
, wsize
, wc
, data
);
2466 if (data
== string_value
&&
2467 bcmp(name
, data
, namelen
) != 0)
2468 fatal(0, "name '%s' != val '%s' len %d",
2469 name
, data
, namelen
);
2471 ASSERT3U(error
, ==, ENOENT
);
2476 error
= zap_add(os
, object
, name
, wsize
, wc
, data
, tx
);
2477 ASSERT(error
== 0 || error
== EEXIST
);
2481 VERIFY(zap_update(os
, object
, name
, wsize
, wc
, data
, tx
) == 0);
2485 error
= zap_remove(os
, object
, name
, tx
);
2486 ASSERT(error
== 0 || error
== ENOENT
);
2495 ztest_dsl_prop_get_set(ztest_args_t
*za
)
2497 objset_t
*os
= za
->za_os
;
2500 const char *prop
, *valname
;
2501 char setpoint
[MAXPATHLEN
];
2502 char osname
[MAXNAMELEN
];
2505 (void) rw_rdlock(&ztest_shared
->zs_name_lock
);
2507 dmu_objset_name(os
, osname
);
2509 for (i
= 0; i
< 2; i
++) {
2512 value
= ztest_random_checksum();
2513 inherit
= (value
== ZIO_CHECKSUM_INHERIT
);
2515 prop
= "compression";
2516 value
= ztest_random_compress();
2517 inherit
= (value
== ZIO_COMPRESS_INHERIT
);
2520 error
= dsl_prop_set(osname
, prop
, sizeof (value
),
2523 if (error
== ENOSPC
) {
2524 ztest_record_enospc("dsl_prop_set");
2528 ASSERT3U(error
, ==, 0);
2530 VERIFY3U(dsl_prop_get(osname
, prop
, sizeof (value
),
2531 1, &value
, setpoint
), ==, 0);
2534 valname
= zio_checksum_table
[value
].ci_name
;
2536 valname
= zio_compress_table
[value
].ci_name
;
2538 if (zopt_verbose
>= 6) {
2539 (void) printf("%s %s = %s for '%s'\n",
2540 osname
, prop
, valname
, setpoint
);
2544 (void) rw_unlock(&ztest_shared
->zs_name_lock
);
2548 ztest_error_setup(vdev_t
*vd
, int mode
, int mask
, uint64_t arg
)
2552 for (c
= 0; c
< vd
->vdev_children
; c
++)
2553 ztest_error_setup(vd
->vdev_child
[c
], mode
, mask
, arg
);
2555 if (vd
->vdev_path
!= NULL
) {
2556 vd
->vdev_fault_mode
= mode
;
2557 vd
->vdev_fault_mask
= mask
;
2558 vd
->vdev_fault_arg
= arg
;
2563 * Inject random faults into the on-disk data.
2566 ztest_fault_inject(ztest_args_t
*za
)
2570 uint64_t leaves
= MAX(zopt_mirrors
, 1) * zopt_raidz
;
2571 uint64_t bad
= 0x1990c0ffeedecade;
2573 char path0
[MAXPATHLEN
];
2574 char pathrand
[MAXPATHLEN
];
2576 spa_t
*spa
= za
->za_spa
;
2577 int bshift
= SPA_MAXBLOCKSHIFT
+ 2; /* don't scrog all labels */
2583 * We can't inject faults when we have no fault tolerance.
2585 if (zopt_maxfaults
== 0)
2588 ASSERT(leaves
>= 2);
2591 * Pick a random top-level vdev.
2593 spa_config_enter(spa
, RW_READER
, FTAG
);
2594 top
= ztest_random(spa
->spa_root_vdev
->vdev_children
);
2595 spa_config_exit(spa
, FTAG
);
2598 * Pick a random leaf.
2600 leaf
= ztest_random(leaves
);
2603 * Generate paths to the first two leaves in this top-level vdev,
2604 * and to the random leaf we selected. We'll induce transient
2605 * I/O errors and random online/offline activity on leaf 0,
2606 * and we'll write random garbage to the randomly chosen leaf.
2608 (void) snprintf(path0
, sizeof (path0
),
2609 ztest_dev_template
, zopt_dir
, zopt_pool
, top
* leaves
+ 0);
2610 (void) snprintf(pathrand
, sizeof (pathrand
),
2611 ztest_dev_template
, zopt_dir
, zopt_pool
, top
* leaves
+ leaf
);
2613 dprintf("damaging %s and %s\n", path0
, pathrand
);
2615 spa_config_enter(spa
, RW_READER
, FTAG
);
2618 * If we can tolerate two or more faults, make vd0 fail randomly.
2620 vd0
= vdev_lookup_by_path(spa
->spa_root_vdev
, path0
);
2621 if (vd0
!= NULL
&& zopt_maxfaults
>= 2) {
2622 guid0
= vd0
->vdev_guid
;
2623 ztest_error_setup(vd0
, VDEV_FAULT_COUNT
,
2624 (1U << ZIO_TYPE_READ
) | (1U << ZIO_TYPE_WRITE
), 100);
2627 spa_config_exit(spa
, FTAG
);
2630 * If we can tolerate two or more faults, randomly online/offline vd0.
2632 if (zopt_maxfaults
>= 2 && guid0
!= 0) {
2633 if (ztest_random(10) < 6)
2634 (void) vdev_offline(spa
, guid0
, B_TRUE
);
2636 (void) vdev_online(spa
, guid0
, B_FALSE
, NULL
);
2640 * We have at least single-fault tolerance, so inject data corruption.
2642 fd
= open(pathrand
, O_RDWR
);
2644 if (fd
== -1) /* we hit a gap in the device namespace */
2647 fsize
= lseek(fd
, 0, SEEK_END
);
2649 while (--iters
!= 0) {
2650 offset
= ztest_random(fsize
/ (leaves
<< bshift
)) *
2651 (leaves
<< bshift
) + (leaf
<< bshift
) +
2652 (ztest_random(1ULL << (bshift
- 1)) & -8ULL);
2654 if (offset
>= fsize
)
2657 if (zopt_verbose
>= 6)
2658 (void) printf("injecting bad word into %s,"
2659 " offset 0x%llx\n", pathrand
, (u_longlong_t
)offset
);
2661 if (pwrite(fd
, &bad
, sizeof (bad
), offset
) != sizeof (bad
))
2662 fatal(1, "can't inject bad word at 0x%llx in %s",
2673 ztest_scrub(ztest_args_t
*za
)
2675 spa_t
*spa
= za
->za_spa
;
2677 mutex_enter(&spa_namespace_lock
);
2678 (void) spa_scrub(spa
, POOL_SCRUB_EVERYTHING
, B_FALSE
);
2679 mutex_exit(&spa_namespace_lock
);
2680 (void) poll(NULL
, 0, 1000); /* wait a second, then force a restart */
2681 mutex_enter(&spa_namespace_lock
);
2682 (void) spa_scrub(spa
, POOL_SCRUB_EVERYTHING
, B_FALSE
);
2683 mutex_exit(&spa_namespace_lock
);
2687 * Rename the pool to a different name and then rename it back.
2690 ztest_spa_rename(ztest_args_t
*za
)
2692 char *oldname
, *newname
;
2696 (void) rw_wrlock(&ztest_shared
->zs_name_lock
);
2698 oldname
= za
->za_pool
;
2699 newname
= umem_alloc(strlen(oldname
) + 5, UMEM_NOFAIL
);
2700 (void) strcpy(newname
, oldname
);
2701 (void) strcat(newname
, "_tmp");
2706 error
= spa_rename(oldname
, newname
);
2708 fatal(0, "spa_rename('%s', '%s') = %d", oldname
,
2712 * Try to open it under the old name, which shouldn't exist
2714 error
= spa_open(oldname
, &spa
, FTAG
);
2715 if (error
!= ENOENT
)
2716 fatal(0, "spa_open('%s') = %d", oldname
, error
);
2719 * Open it under the new name and make sure it's still the same spa_t.
2721 error
= spa_open(newname
, &spa
, FTAG
);
2723 fatal(0, "spa_open('%s') = %d", newname
, error
);
2725 ASSERT(spa
== za
->za_spa
);
2726 spa_close(spa
, FTAG
);
2729 * Rename it back to the original
2731 error
= spa_rename(newname
, oldname
);
2733 fatal(0, "spa_rename('%s', '%s') = %d", newname
,
2737 * Make sure it can still be opened
2739 error
= spa_open(oldname
, &spa
, FTAG
);
2741 fatal(0, "spa_open('%s') = %d", oldname
, error
);
2743 ASSERT(spa
== za
->za_spa
);
2744 spa_close(spa
, FTAG
);
2746 umem_free(newname
, strlen(newname
) + 1);
2748 (void) rw_unlock(&ztest_shared
->zs_name_lock
);
2753 * Completely obliterate one disk.
2756 ztest_obliterate_one_disk(uint64_t vdev
)
2759 char dev_name
[MAXPATHLEN
], copy_name
[MAXPATHLEN
];
2762 if (zopt_maxfaults
< 2)
2765 (void) sprintf(dev_name
, ztest_dev_template
, zopt_dir
, zopt_pool
, vdev
);
2766 (void) snprintf(copy_name
, MAXPATHLEN
, "%s.old", dev_name
);
2768 fd
= open(dev_name
, O_RDWR
);
2771 fatal(1, "can't open %s", dev_name
);
2774 * Determine the size.
2776 fsize
= lseek(fd
, 0, SEEK_END
);
2781 * Rename the old device to dev_name.old (useful for debugging).
2783 VERIFY(rename(dev_name
, copy_name
) == 0);
2788 VERIFY((fd
= open(dev_name
, O_RDWR
| O_CREAT
| O_TRUNC
, 0666)) >= 0);
2789 VERIFY(ftruncate(fd
, fsize
) == 0);
2794 ztest_replace_one_disk(spa_t
*spa
, uint64_t vdev
)
2796 char dev_name
[MAXPATHLEN
];
2797 nvlist_t
*file
, *root
;
2800 uint64_t ashift
= ztest_get_ashift();
2803 (void) sprintf(dev_name
, ztest_dev_template
, zopt_dir
, zopt_pool
, vdev
);
2806 * Build the nvlist describing dev_name.
2808 VERIFY(nvlist_alloc(&file
, NV_UNIQUE_NAME
, 0) == 0);
2809 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_FILE
) == 0);
2810 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_PATH
, dev_name
) == 0);
2811 VERIFY(nvlist_add_uint64(file
, ZPOOL_CONFIG_ASHIFT
, ashift
) == 0);
2813 VERIFY(nvlist_alloc(&root
, NV_UNIQUE_NAME
, 0) == 0);
2814 VERIFY(nvlist_add_string(root
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_ROOT
) == 0);
2815 VERIFY(nvlist_add_nvlist_array(root
, ZPOOL_CONFIG_CHILDREN
,
2818 spa_config_enter(spa
, RW_READER
, FTAG
);
2819 if ((vd
= vdev_lookup_by_path(spa
->spa_root_vdev
, dev_name
)) == NULL
)
2822 guid
= vd
->vdev_guid
;
2823 spa_config_exit(spa
, FTAG
);
2824 error
= spa_vdev_attach(spa
, guid
, root
, B_TRUE
);
2830 fatal(0, "spa_vdev_attach(in-place) = %d", error
);
2837 ztest_verify_blocks(char *pool
)
2840 char zdb
[MAXPATHLEN
+ MAXNAMELEN
+ 20];
2848 (void) realpath(getexecname(), zdb
);
2850 /* zdb lives in /usr/sbin, while ztest lives in /usr/bin */
2851 bin
= strstr(zdb
, "/usr/bin/");
2852 ztest
= strstr(bin
, "/ztest");
2854 isalen
= ztest
- isa
;
2858 "/usr/sbin%.*s/zdb -bc%s%s -U /tmp/zpool.cache -O %s %s",
2861 zopt_verbose
>= 3 ? "s" : "",
2862 zopt_verbose
>= 4 ? "v" : "",
2863 ztest_random(2) == 0 ? "pre" : "post", pool
);
2866 if (zopt_verbose
>= 5)
2867 (void) printf("Executing %s\n", strstr(zdb
, "zdb "));
2869 fp
= popen(zdb
, "r");
2871 while (fgets(zbuf
, sizeof (zbuf
), fp
) != NULL
)
2872 if (zopt_verbose
>= 3)
2873 (void) printf("%s", zbuf
);
2875 status
= pclose(fp
);
2880 ztest_dump_core
= 0;
2881 if (WIFEXITED(status
))
2882 fatal(0, "'%s' exit code %d", zdb
, WEXITSTATUS(status
));
2884 fatal(0, "'%s' died with signal %d", zdb
, WTERMSIG(status
));
2888 ztest_walk_pool_directory(char *header
)
2892 if (zopt_verbose
>= 6)
2893 (void) printf("%s\n", header
);
2895 mutex_enter(&spa_namespace_lock
);
2896 while ((spa
= spa_next(spa
)) != NULL
)
2897 if (zopt_verbose
>= 6)
2898 (void) printf("\t%s\n", spa_name(spa
));
2899 mutex_exit(&spa_namespace_lock
);
2903 ztest_spa_import_export(char *oldname
, char *newname
)
2910 if (zopt_verbose
>= 4) {
2911 (void) printf("import/export: old = %s, new = %s\n",
2916 * Clean up from previous runs.
2918 (void) spa_destroy(newname
);
2921 * Get the pool's configuration and guid.
2923 error
= spa_open(oldname
, &spa
, FTAG
);
2925 fatal(0, "spa_open('%s') = %d", oldname
, error
);
2927 pool_guid
= spa_guid(spa
);
2928 spa_close(spa
, FTAG
);
2930 ztest_walk_pool_directory("pools before export");
2935 error
= spa_export(oldname
, &config
);
2937 fatal(0, "spa_export('%s') = %d", oldname
, error
);
2939 ztest_walk_pool_directory("pools after export");
2942 * Import it under the new name.
2944 error
= spa_import(newname
, config
, NULL
);
2946 fatal(0, "spa_import('%s') = %d", newname
, error
);
2948 ztest_walk_pool_directory("pools after import");
2951 * Try to import it again -- should fail with EEXIST.
2953 error
= spa_import(newname
, config
, NULL
);
2954 if (error
!= EEXIST
)
2955 fatal(0, "spa_import('%s') twice", newname
);
2958 * Try to import it under a different name -- should fail with EEXIST.
2960 error
= spa_import(oldname
, config
, NULL
);
2961 if (error
!= EEXIST
)
2962 fatal(0, "spa_import('%s') under multiple names", newname
);
2965 * Verify that the pool is no longer visible under the old name.
2967 error
= spa_open(oldname
, &spa
, FTAG
);
2968 if (error
!= ENOENT
)
2969 fatal(0, "spa_open('%s') = %d", newname
, error
);
2972 * Verify that we can open and close the pool using the new name.
2974 error
= spa_open(newname
, &spa
, FTAG
);
2976 fatal(0, "spa_open('%s') = %d", newname
, error
);
2977 ASSERT(pool_guid
== spa_guid(spa
));
2978 spa_close(spa
, FTAG
);
2980 nvlist_free(config
);
2985 ztest_suspend_monitor(void *arg
)
2990 error
= spa_open(zopt_pool
, &spa
, FTAG
);
2992 (void) printf("Unable to monitor pool '%s'\n", zopt_pool
);
2996 while (!ztest_exiting
) {
2997 mutex_enter(&spa
->spa_zio_lock
);
2998 while (!ztest_exiting
&& list_is_empty(&spa
->spa_zio_list
))
2999 cv_wait(&spa
->spa_zio_cv
, &spa
->spa_zio_lock
);
3000 mutex_exit(&spa
->spa_zio_lock
);
3004 * We don't hold the spa_config_lock since the pool is in
3005 * complete failure mode and there is no way for us to
3006 * change the vdev config when we're in this state.
3008 while ((error
= zio_vdev_resume_io(spa
)) != 0) {
3009 (void) printf("I/O could not be resumed, %d\n", error
);
3012 vdev_clear(spa
, NULL
, B_TRUE
);
3014 spa_close(spa
, FTAG
);
3019 ztest_thread(void *arg
)
3021 ztest_args_t
*za
= arg
;
3022 ztest_shared_t
*zs
= ztest_shared
;
3023 hrtime_t now
, functime
;
3027 while ((now
= gethrtime()) < za
->za_stop
) {
3029 * See if it's time to force a crash.
3031 if (now
> za
->za_kill
) {
3032 zs
->zs_alloc
= spa_get_alloc(za
->za_spa
);
3033 zs
->zs_space
= spa_get_space(za
->za_spa
);
3034 (void) kill(getpid(), SIGKILL
);
3038 * Pick a random function.
3040 f
= ztest_random(ZTEST_FUNCS
);
3041 zi
= &zs
->zs_info
[f
];
3044 * Decide whether to call it, based on the requested frequency.
3046 if (zi
->zi_call_target
== 0 ||
3047 (double)zi
->zi_call_total
/ zi
->zi_call_target
>
3048 (double)(now
- zs
->zs_start_time
) / (zopt_time
* NANOSEC
))
3051 atomic_add_64(&zi
->zi_calls
, 1);
3052 atomic_add_64(&zi
->zi_call_total
, 1);
3054 za
->za_diroff
= (za
->za_instance
* ZTEST_FUNCS
+ f
) *
3056 za
->za_diroff_shared
= (1ULL << 63);
3058 for (i
= 0; i
< zi
->zi_iters
; i
++)
3061 functime
= gethrtime() - now
;
3063 atomic_add_64(&zi
->zi_call_time
, functime
);
3065 if (zopt_verbose
>= 4) {
3067 (void) dladdr((void *)zi
->zi_func
, &dli
);
3068 (void) printf("%6.2f sec in %s\n",
3069 (double)functime
/ NANOSEC
, dli
.dli_sname
);
3073 * If we're getting ENOSPC with some regularity, stop.
3075 if (zs
->zs_enospc_count
> 10)
3083 * Kick off threads to run tests on all datasets in parallel.
3086 ztest_run(char *pool
)
3089 ztest_shared_t
*zs
= ztest_shared
;
3095 (void) _mutex_init(&zs
->zs_vdev_lock
, USYNC_THREAD
, NULL
);
3096 (void) rwlock_init(&zs
->zs_name_lock
, USYNC_THREAD
, NULL
);
3098 for (t
= 0; t
< ZTEST_SYNC_LOCKS
; t
++)
3099 (void) _mutex_init(&zs
->zs_sync_lock
[t
], USYNC_THREAD
, NULL
);
3102 * Destroy one disk before we even start.
3103 * It's mirrored, so everything should work just fine.
3104 * This makes us exercise fault handling very early in spa_load().
3106 ztest_obliterate_one_disk(0);
3109 * Verify that the sum of the sizes of all blocks in the pool
3110 * equals the SPA's allocated space total.
3112 ztest_verify_blocks(pool
);
3115 * Kick off a replacement of the disk we just obliterated.
3117 kernel_init(FREAD
| FWRITE
);
3118 error
= spa_open(pool
, &spa
, FTAG
);
3120 fatal(0, "spa_open(%s) = %d", pool
, error
);
3121 ztest_replace_one_disk(spa
, 0);
3122 if (zopt_verbose
>= 5)
3123 show_pool_stats(spa
);
3124 spa_close(spa
, FTAG
);
3127 kernel_init(FREAD
| FWRITE
);
3130 * Verify that we can export the pool and reimport it under a
3133 if (ztest_random(2) == 0) {
3134 (void) snprintf(name
, 100, "%s_import", pool
);
3135 ztest_spa_import_export(pool
, name
);
3136 ztest_spa_import_export(name
, pool
);
3140 * Verify that we can loop over all pools.
3142 mutex_enter(&spa_namespace_lock
);
3143 for (spa
= spa_next(NULL
); spa
!= NULL
; spa
= spa_next(spa
)) {
3144 if (zopt_verbose
> 3) {
3145 (void) printf("spa_next: found %s\n", spa_name(spa
));
3148 mutex_exit(&spa_namespace_lock
);
3151 * Create a thread to handling complete pool failures. This
3152 * thread will kickstart the I/Os when they suspend. We must
3153 * start the thread before setting the zio_io_fail_shift, which
3154 * will indicate our failure rate.
3156 error
= thr_create(0, 0, ztest_suspend_monitor
, NULL
, THR_BOUND
, &tid
);
3158 fatal(0, "can't create suspend monitor thread: error %d",
3165 error
= spa_open(pool
, &spa
, FTAG
);
3167 fatal(0, "spa_open() = %d", error
);
3170 * Verify that we can safely inquire about about any object,
3171 * whether it's allocated or not. To make it interesting,
3172 * we probe a 5-wide window around each power of two.
3173 * This hits all edge cases, including zero and the max.
3175 for (t
= 0; t
< 64; t
++) {
3176 for (d
= -5; d
<= 5; d
++) {
3177 error
= dmu_object_info(spa
->spa_meta_objset
,
3178 (1ULL << t
) + d
, NULL
);
3179 ASSERT(error
== 0 || error
== ENOENT
||
3185 * Now kick off all the tests that run in parallel.
3187 zs
->zs_enospc_count
= 0;
3189 za
= umem_zalloc(zopt_threads
* sizeof (ztest_args_t
), UMEM_NOFAIL
);
3191 if (zopt_verbose
>= 4)
3192 (void) printf("starting main threads...\n");
3194 /* Let failures begin */
3195 zio_io_fail_shift
= zopt_write_fail_shift
;
3197 za
[0].za_start
= gethrtime();
3198 za
[0].za_stop
= za
[0].za_start
+ zopt_passtime
* NANOSEC
;
3199 za
[0].za_stop
= MIN(za
[0].za_stop
, zs
->zs_stop_time
);
3200 za
[0].za_kill
= za
[0].za_stop
;
3201 if (ztest_random(100) < zopt_killrate
)
3202 za
[0].za_kill
-= ztest_random(zopt_passtime
* NANOSEC
);
3204 for (t
= 0; t
< zopt_threads
; t
++) {
3205 d
= t
% zopt_datasets
;
3207 (void) strcpy(za
[t
].za_pool
, pool
);
3208 za
[t
].za_os
= za
[d
].za_os
;
3210 za
[t
].za_zilog
= za
[d
].za_zilog
;
3211 za
[t
].za_instance
= t
;
3212 za
[t
].za_random
= ztest_random(-1ULL);
3213 za
[t
].za_start
= za
[0].za_start
;
3214 za
[t
].za_stop
= za
[0].za_stop
;
3215 za
[t
].za_kill
= za
[0].za_kill
;
3217 if (t
< zopt_datasets
) {
3219 int test_future
= FALSE
;
3220 (void) rw_rdlock(&ztest_shared
->zs_name_lock
);
3221 (void) snprintf(name
, 100, "%s/%s_%d", pool
, pool
, d
);
3222 error
= dmu_objset_create(name
, DMU_OST_OTHER
, NULL
, 0,
3223 ztest_create_cb
, NULL
);
3224 if (error
== EEXIST
) {
3226 } else if (error
== ENOSPC
) {
3227 zs
->zs_enospc_count
++;
3228 (void) rw_unlock(&ztest_shared
->zs_name_lock
);
3230 } else if (error
!= 0) {
3231 fatal(0, "dmu_objset_create(%s) = %d",
3234 error
= dmu_objset_open(name
, DMU_OST_OTHER
,
3235 DS_MODE_STANDARD
, &za
[d
].za_os
);
3237 fatal(0, "dmu_objset_open('%s') = %d",
3239 (void) rw_unlock(&ztest_shared
->zs_name_lock
);
3241 ztest_dmu_check_future_leak(&za
[t
]);
3242 zr
.zr_os
= za
[d
].za_os
;
3243 zil_replay(zr
.zr_os
, &zr
, &zr
.zr_assign
,
3244 ztest_replay_vector
);
3245 za
[d
].za_zilog
= zil_open(za
[d
].za_os
, NULL
);
3248 error
= thr_create(0, 0, ztest_thread
, &za
[t
], THR_BOUND
,
3251 fatal(0, "can't create thread %d: error %d",
3256 error
= thr_join(za
[t
].za_thread
, NULL
, NULL
);
3258 fatal(0, "thr_join(%d) = %d", t
, error
);
3260 traverse_fini(za
[t
].za_th
);
3261 if (t
< zopt_datasets
) {
3262 zil_close(za
[t
].za_zilog
);
3263 dmu_objset_close(za
[t
].za_os
);
3267 if (zopt_verbose
>= 3)
3268 show_pool_stats(spa
);
3270 txg_wait_synced(spa_get_dsl(spa
), 0);
3272 zs
->zs_alloc
= spa_get_alloc(spa
);
3273 zs
->zs_space
= spa_get_space(spa
);
3276 * If we had out-of-space errors, destroy a random objset.
3278 if (zs
->zs_enospc_count
!= 0) {
3279 (void) rw_rdlock(&ztest_shared
->zs_name_lock
);
3280 d
= (int)ztest_random(zopt_datasets
);
3281 (void) snprintf(name
, 100, "%s/%s_%d", pool
, pool
, d
);
3282 if (zopt_verbose
>= 3)
3283 (void) printf("Destroying %s to free up space\n", name
);
3284 (void) dmu_objset_find(name
, ztest_destroy_cb
, &za
[d
],
3285 DS_FIND_SNAPSHOTS
| DS_FIND_CHILDREN
);
3286 (void) rw_unlock(&ztest_shared
->zs_name_lock
);
3289 txg_wait_synced(spa_get_dsl(spa
), 0);
3292 * Right before closing the pool, kick off a bunch of async I/O;
3293 * spa_close() should wait for it to complete.
3295 for (t
= 1; t
< 50; t
++)
3296 dmu_prefetch(spa
->spa_meta_objset
, t
, 0, 1 << 15);
3298 /* Shutdown the suspend monitor thread */
3299 zio_io_fail_shift
= 0;
3300 ztest_exiting
= B_TRUE
;
3301 mutex_enter(&spa
->spa_zio_lock
);
3302 cv_broadcast(&spa
->spa_zio_cv
);
3303 mutex_exit(&spa
->spa_zio_lock
);
3304 error
= thr_join(tid
, NULL
, NULL
);
3306 fatal(0, "thr_join(%d) = %d", tid
, error
);
3308 umem_free(za
, zopt_threads
* sizeof (ztest_args_t
));
3310 spa_close(spa
, FTAG
);
3316 print_time(hrtime_t t
, char *timebuf
)
3318 hrtime_t s
= t
/ NANOSEC
;
3319 hrtime_t m
= s
/ 60;
3320 hrtime_t h
= m
/ 60;
3321 hrtime_t d
= h
/ 24;
3330 (void) sprintf(timebuf
,
3331 "%llud%02lluh%02llum%02llus", d
, h
, m
, s
);
3333 (void) sprintf(timebuf
, "%lluh%02llum%02llus", h
, m
, s
);
3335 (void) sprintf(timebuf
, "%llum%02llus", m
, s
);
3337 (void) sprintf(timebuf
, "%llus", s
);
3341 * Create a storage pool with the given name and initial vdev size.
3342 * Then create the specified number of datasets in the pool.
3345 ztest_init(char *pool
)
3351 kernel_init(FREAD
| FWRITE
);
3354 * Create the storage pool.
3356 (void) spa_destroy(pool
);
3357 ztest_shared
->zs_vdev_primaries
= 0;
3358 nvroot
= make_vdev_root(zopt_vdev_size
, 0, zopt_raidz
, zopt_mirrors
, 1);
3359 error
= spa_create(pool
, nvroot
, NULL
, NULL
);
3360 nvlist_free(nvroot
);
3363 fatal(0, "spa_create() = %d", error
);
3364 error
= spa_open(pool
, &spa
, FTAG
);
3366 fatal(0, "spa_open() = %d", error
);
3368 if (zopt_verbose
>= 3)
3369 show_pool_stats(spa
);
3371 spa_close(spa
, FTAG
);
3377 main(int argc
, char **argv
)
3387 (void) setvbuf(stdout
, NULL
, _IOLBF
, 0);
3389 /* Override location of zpool.cache */
3390 spa_config_dir
= "/tmp";
3392 ztest_random_fd
= open("/dev/urandom", O_RDONLY
);
3394 process_options(argc
, argv
);
3399 dprintf_setup(&argc
, argv
);
3402 * Blow away any existing copy of zpool.cache
3405 (void) remove("/tmp/zpool.cache");
3407 zs
= ztest_shared
= (void *)mmap(0,
3408 P2ROUNDUP(sizeof (ztest_shared_t
), getpagesize()),
3409 PROT_READ
| PROT_WRITE
, MAP_SHARED
| MAP_ANON
, -1, 0);
3411 if (zopt_verbose
>= 1) {
3412 (void) printf("%llu vdevs, %d datasets, %d threads,"
3413 " %llu seconds...\n",
3414 (u_longlong_t
)zopt_vdevs
, zopt_datasets
, zopt_threads
,
3415 (u_longlong_t
)zopt_time
);
3419 * Create and initialize our storage pool.
3421 for (i
= 1; i
<= zopt_init
; i
++) {
3422 bzero(zs
, sizeof (ztest_shared_t
));
3423 if (zopt_verbose
>= 3 && zopt_init
!= 1)
3424 (void) printf("ztest_init(), pass %d\n", i
);
3425 ztest_init(zopt_pool
);
3429 * Initialize the call targets for each function.
3431 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
3432 zi
= &zs
->zs_info
[f
];
3434 *zi
= ztest_info
[f
];
3436 if (*zi
->zi_interval
== 0)
3437 zi
->zi_call_target
= UINT64_MAX
;
3439 zi
->zi_call_target
= zopt_time
/ *zi
->zi_interval
;
3442 zs
->zs_start_time
= gethrtime();
3443 zs
->zs_stop_time
= zs
->zs_start_time
+ zopt_time
* NANOSEC
;
3446 * Run the tests in a loop. These tests include fault injection
3447 * to verify that self-healing data works, and forced crashes
3448 * to verify that we never lose on-disk consistency.
3450 while (gethrtime() < zs
->zs_stop_time
) {
3456 * Initialize the workload counters for each function.
3458 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
3459 zi
= &zs
->zs_info
[f
];
3461 zi
->zi_call_time
= 0;
3467 fatal(1, "fork failed");
3469 if (pid
== 0) { /* child */
3470 struct rlimit rl
= { 1024, 1024 };
3471 (void) setrlimit(RLIMIT_NOFILE
, &rl
);
3472 (void) enable_extended_FILE_stdio(-1, -1);
3473 ztest_run(zopt_pool
);
3477 while (waitpid(pid
, &status
, 0) != pid
)
3480 if (WIFEXITED(status
)) {
3481 if (WEXITSTATUS(status
) != 0) {
3482 (void) fprintf(stderr
,
3483 "child exited with code %d\n",
3484 WEXITSTATUS(status
));
3487 } else if (WIFSIGNALED(status
)) {
3488 if (WTERMSIG(status
) != SIGKILL
) {
3489 (void) fprintf(stderr
,
3490 "child died with signal %d\n",
3496 (void) fprintf(stderr
, "something strange happened "
3503 if (zopt_verbose
>= 1) {
3504 hrtime_t now
= gethrtime();
3506 now
= MIN(now
, zs
->zs_stop_time
);
3507 print_time(zs
->zs_stop_time
- now
, timebuf
);
3508 nicenum(zs
->zs_space
, numbuf
);
3510 (void) printf("Pass %3d, %8s, %3llu ENOSPC, "
3511 "%4.1f%% of %5s used, %3.0f%% done, %8s to go\n",
3513 WIFEXITED(status
) ? "Complete" : "SIGKILL",
3514 (u_longlong_t
)zs
->zs_enospc_count
,
3515 100.0 * zs
->zs_alloc
/ zs
->zs_space
,
3517 100.0 * (now
- zs
->zs_start_time
) /
3518 (zopt_time
* NANOSEC
), timebuf
);
3521 if (zopt_verbose
>= 2) {
3522 (void) printf("\nWorkload summary:\n\n");
3523 (void) printf("%7s %9s %s\n",
3524 "Calls", "Time", "Function");
3525 (void) printf("%7s %9s %s\n",
3526 "-----", "----", "--------");
3527 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
3530 zi
= &zs
->zs_info
[f
];
3531 print_time(zi
->zi_call_time
, timebuf
);
3532 (void) dladdr((void *)zi
->zi_func
, &dli
);
3533 (void) printf("%7llu %9s %s\n",
3534 (u_longlong_t
)zi
->zi_calls
, timebuf
,
3537 (void) printf("\n");
3541 * It's possible that we killed a child during a rename test, in
3542 * which case we'll have a 'ztest_tmp' pool lying around instead
3543 * of 'ztest'. Do a blind rename in case this happened.
3545 tmp
= umem_alloc(strlen(zopt_pool
) + 5, UMEM_NOFAIL
);
3546 (void) strcpy(tmp
, zopt_pool
);
3547 (void) strcat(tmp
, "_tmp");
3548 kernel_init(FREAD
| FWRITE
);
3549 (void) spa_rename(tmp
, zopt_pool
);
3551 umem_free(tmp
, strlen(tmp
) + 1);
3554 ztest_verify_blocks(zopt_pool
);
3556 if (zopt_verbose
>= 1) {
3557 (void) printf("%d killed, %d completed, %.0f%% kill rate\n",
3558 kills
, iters
- kills
, (100.0 * kills
) / MAX(1, iters
));