Author: pluknet
Date: Tue Jan 24 10:32:02 2012
New Revision: 230498
URL: http://svn.freebsd.org/changeset/base/230498
Log:
MFC r230256:
Fix the "lock &zrl->zr_mtx already initialized" assertion by initializing
the allocated memory before calling mtx_init(9) on mtx pointing to it.
Otherwize, random contents of uninitialized memory might occasionally
trigger the assertion.
Reported by: Pavel Polyakov <bsd kobyla org>
Reviewed by: pjd
Modified:
stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dnode.c
Directory Properties:
stable/8/sys/ (props changed)
stable/8/sys/amd64/include/xen/ (props changed)
stable/8/sys/cddl/contrib/opensolaris/ (props changed)
stable/8/sys/contrib/dev/acpica/ (props changed)
stable/8/sys/contrib/pf/ (props changed)
Modified: stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dnode.c
==============================================================================
--- stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dnode.c Tue Jan
24 10:28:19 2012 (r230497)
+++ stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dnode.c Tue Jan
24 10:32:02 2012 (r230498)
@@ -1077,7 +1077,7 @@ dnode_hold_impl(objset_t *os, uint64_t o
if (children_dnodes == NULL) {
int i;
dnode_children_t *winner;
- children_dnodes = kmem_alloc(sizeof (dnode_children_t) +
+ children_dnodes = kmem_zalloc(sizeof (dnode_children_t) +
(epb - 1) * sizeof (dnode_handle_t), KM_SLEEP);
children_dnodes->dnc_count = epb;
dnh = &children_dnodes->dnc_children[0];
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