Author: smh
Date: Fri Jun 21 15:47:10 2013
New Revision: 252060
URL: http://svnweb.freebsd.org/changeset/base/252060
Log:
Fix intermittent ZFS lock panic when kernel is compiled with debugging caused
by access of uninitialized smlock in mmutex_init.
MFC after: 1 week
Modified:
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev.c
Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev.c
==============================================================================
--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev.c Fri Jun 21
15:30:46 2013 (r252059)
+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev.c Fri Jun 21
15:47:10 2013 (r252060)
@@ -1836,6 +1836,7 @@ vdev_dtl_sync(vdev_t *vd, uint64_t txg)
vdev_config_dirty(vd->vdev_top);
}
+ bzero(&smlock, sizeof (smlock));
mutex_init(&smlock, NULL, MUTEX_DEFAULT, NULL);
space_map_create(&smsync, sm->sm_start, sm->sm_size, sm->sm_shift,
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