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Illumos 6537 - Panic on zpool scrub with DEBUG kernel

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6537 Panic on zpool scrub with DEBUG kernel
Reviewed by: Steve Gonczi <gonczi@comcast.net>
Reviewed by: Dan McDonald <danmcd@omniti.com>
Reviewed by: Igor Kozhukhov <ikozhukhov@gmail.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Approved by: Matthew Ahrens <mahrens@delphix.com>

References:
  https://www.illumos.org/issues/6537
  https://github.com/illumos/illumos-gate/commit/8c04a1f

Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>
This commit is contained in:
Gary Mills 2016-02-02 16:23:21 -08:00 committed by Brian Behlendorf
parent a4d179efa9
commit 7c9abfa7ab
1 changed files with 4 additions and 2 deletions
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6
module/zfs/dsl_scan.c
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@ -21,6 +21,7 @@
/*
* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2011, 2015 by Delphix. All rights reserved.
* Copyright 2016 Gary Mills
*/
#include <sys/dsl_scan.h>
@ -1626,7 +1627,8 @@ dsl_scan_sync(dsl_pool_t *dp, dmu_tx_t *tx)
}
if (err != 0)
return;
if (!scn->scn_async_destroying && zfs_free_leak_on_eio &&
if (dp->dp_free_dir != NULL && !scn->scn_async_destroying &&
zfs_free_leak_on_eio &&
(dsl_dir_phys(dp->dp_free_dir)->dd_used_bytes != 0 ||
dsl_dir_phys(dp->dp_free_dir)->dd_compressed_bytes != 0 ||
dsl_dir_phys(dp->dp_free_dir)->dd_uncompressed_bytes != 0)) {
@ -1652,7 +1654,7 @@ dsl_scan_sync(dsl_pool_t *dp, dmu_tx_t *tx)
-dsl_dir_phys(dp->dp_free_dir)->dd_compressed_bytes,
-dsl_dir_phys(dp->dp_free_dir)->dd_uncompressed_bytes, tx);
}
if (!scn->scn_async_destroying) {
if (dp->dp_free_dir != NULL && !scn->scn_async_destroying) {
/* finished; verify that space accounting went to zero */
ASSERT0(dsl_dir_phys(dp->dp_free_dir)->dd_used_bytes);
ASSERT0(dsl_dir_phys(dp->dp_free_dir)->dd_compressed_bytes);