[JAUNTY SRU] UBUNTU: SAUCE: added memory barrier to prevent a reference counter leak.
manoj.iyer at canonical.com
Thu Jul 23 20:23:39 BST 2009
IMPACT: disk corruption due to a concurrent h_refcounter update which
produced a reference counter leak, and later error from ext3
FIX: launchpad bug #209346, is caused by atleast three known factors.
1. File system inconsistency
2. Hardware problems
3. Misplaced memory barrier
As noted by a contributer to this bug, the Red Hat errata suggests a fix
to the memory barrier issue, which this patch addresses. This patch fixes
only one of the reasons users are seeing data corruption on 64bit Jaunty
systems, and does not address the other two known reasons.
TEST: This patch was reported to work for one(3) of the 3 causes of disk
The following changes since commit
Matthew Garrett (1):
UBUNTU: SAUCE: ACPI: Populate DIDL before registering ACPI video
device on Intel
are available in the git repository at:
Manoj Iyer (1):
UBUNTU: SAUCE: added memory barrier to prevent a reference counter
fs/buffer.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
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