system/freebsd-src
system/freebsd-src
1
0
Fork 0
mirror of https://github.com/freebsd/freebsd-src synced 2024-07-22 18:56:38 +00:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

Invoke zdb by guid to avoid import errors

Browse source 
The problem that was occurring is basically that a device was removed 
by ztest and replaced with another device. It was then reguided. The 
import then failed because there were two possible imports with the 
same name; one with the new guid, and one with the old. This can 
happen because the label writes from the device removal/replacement 
can be subject to ztest's error injection. 

The other ways to fix this would be to change the error injection to 
not trigger on removals (which may not be technically feasible), or 
to change the import code to not report configurations that are so 
short on devices (which would potentially have unpleasant end-user 
effects when trying to recover from data losses/device configuration 
issues).

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Paul Dagnelie <pcd@delphix.com>
Closes #15298
This commit is contained in:
Paul Dagnelie 2023-09-22 16:08:51 -07:00 committed by GitHub
parent e5d70f4677
commit 2e2a46e0a5
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 12 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

21
cmd/ztest.c
View file

@ -6378,6 +6378,7 @@ ztest_reguid(ztest_ds_t *zd, uint64_t id)
spa_t *spa = ztest_spa;
uint64_t orig, load;
int error;
ztest_shared_t *zs = ztest_shared;
if (ztest_opts.zo_mmp_test)
return;
@ -6387,6 +6388,7 @@ ztest_reguid(ztest_ds_t *zd, uint64_t id)
(void) pthread_rwlock_wrlock(&ztest_name_lock);
error = spa_change_guid(spa);
zs->zs_guid = spa_guid(spa);
(void) pthread_rwlock_unlock(&ztest_name_lock);
if (error != 0)
@ -6916,7 +6918,7 @@ ztest_trim(ztest_ds_t *zd, uint64_t id)
* Verify pool integrity by running zdb.
*/
static void
ztest_run_zdb(const char *pool)
ztest_run_zdb(uint64_t guid)
{
int status;
char *bin;
@ -6940,13 +6942,13 @@ ztest_run_zdb(const char *pool)
free(set_gvars_args);
size_t would = snprintf(zdb, len,
"%s -bcc%s%s -G -d -Y -e -y %s -p %s %s",
"%s -bcc%s%s -G -d -Y -e -y %s -p %s %"PRIu64,
bin,
ztest_opts.zo_verbose >= 3 ? "s" : "",
ztest_opts.zo_verbose >= 4 ? "v" : "",
set_gvars_args_joined,
ztest_opts.zo_dir,
pool);
guid);
ASSERT3U(would, <, len);
umem_free(set_gvars_args_joined, strlen(set_gvars_args_joined) + 1);
@ -7524,14 +7526,15 @@ ztest_import(ztest_shared_t *zs)
VERIFY0(spa_open(ztest_opts.zo_pool, &spa, FTAG));
zs->zs_metaslab_sz =
1ULL << spa->spa_root_vdev->vdev_child[0]->vdev_ms_shift;
zs->zs_guid = spa_guid(spa);
spa_close(spa, FTAG);
kernel_fini();
if (!ztest_opts.zo_mmp_test) {
ztest_run_zdb(ztest_opts.zo_pool);
ztest_run_zdb(zs->zs_guid);
ztest_freeze();
ztest_run_zdb(ztest_opts.zo_pool);
ztest_run_zdb(zs->zs_guid);
}
(void) pthread_rwlock_destroy(&ztest_name_lock);
@ -7602,7 +7605,6 @@ ztest_run(ztest_shared_t *zs)
dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
dmu_objset_fast_stat(os, &dds);
dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
zs->zs_guid = dds.dds_guid;
dmu_objset_disown(os, B_TRUE, FTAG);
/*
@ -7873,14 +7875,15 @@ ztest_init(ztest_shared_t *zs)
VERIFY0(spa_open(ztest_opts.zo_pool, &spa, FTAG));
zs->zs_metaslab_sz =
1ULL << spa->spa_root_vdev->vdev_child[0]->vdev_ms_shift;
zs->zs_guid = spa_guid(spa);
spa_close(spa, FTAG);
kernel_fini();
if (!ztest_opts.zo_mmp_test) {
ztest_run_zdb(ztest_opts.zo_pool);
ztest_run_zdb(zs->zs_guid);
ztest_freeze();
ztest_run_zdb(ztest_opts.zo_pool);
ztest_run_zdb(zs->zs_guid);
}
(void) pthread_rwlock_destroy(&ztest_name_lock);
@ -8303,7 +8306,7 @@ main(int argc, char **argv)
}
if (!ztest_opts.zo_mmp_test)
ztest_run_zdb(ztest_opts.zo_pool);
ztest_run_zdb(zs->zs_guid);
}
if (ztest_opts.zo_verbose >= 1) {