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This bug has been copied from bug #624909 and has been proposed
to be backported to 6.0 z-stream (EUS).

in kernel-2.6.32-71.4.1.el6

The bug has been reproduced in 2.6.32-71 and the fix has been verified in 2.6.32-71.4.

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2010-0842.html

    Technical note added. If any revisions are required, please edit the "Technical Notes" field
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    New Contents:
Running a fsstress test which issues various operations on a ext4 filesystem when usrquota is enabled, the following JBD (Journaling Block Device) error was output in /var/log/messages:

    JBD: Spotted dirty metadata buffer (dev = sda10, blocknr = 17635). There's a risk of filesystem corruption in case of system crash.

    With this update, by always journaling the quota file modification in an ext4 file system the aforementioned message no longer appears in the logs.