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Illumos #3145, #3212

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3145 single-copy arc
3212 ztest: race condition between vdev_online() and spa_vdev_remove()

Reviewed by: Matt Ahrens <matthew.ahrens@delphix.com>
Reviewed by: Adam Leventhal <ahl@delphix.com>
Reviewed by: Eric Schrock <eric.schrock@delphix.com>
Reviewed by: Justin T. Gibbs <gibbs@scsiguy.com>
Approved by: Eric Schrock <eric.schrock@delphix.com>

References:
  illumos-gate/commit/9253d63df408bb48584e0b1abfcc24ef2472382e
  illumos changeset: 13840:97fd5cdf328a
  https://www.illumos.org/issues/3145
  https://www.illumos.org/issues/3212

Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #989
Closes #1137
This commit is contained in:
George Wilson
2012-12-21 14:57:09 -08:00
committed by Brian Behlendorf
parent 753c38392d
commit 1eb5bfa3dc
4 changed files with 113 additions and 2 deletions
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cmd/ztest/ztest.c
+11
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@@ -4965,7 +4965,18 @@ ztest_fault_inject(ztest_ds_t *zd, uint64_t id)
if (islog)
(void) rw_exit(&ztest_name_lock);
} else {
/*
* Ideally we would like to be able to randomly
* call vdev_[on|off]line without holding locks
* to force unpredictable failures but the side
* effects of vdev_[on|off]line prevent us from
* doing so. We grab the ztest_vdev_lock here to
* prevent a race between injection testing and
* aux_vdev removal.
*/
mutex_enter(&ztest_vdev_lock);
(void) vdev_online(spa, guid0, 0, NULL);
mutex_exit(&ztest_vdev_lock);
}
}