[Bug 14354] Bad corruption with 2.6.32-rc1 and upwards

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http://bugzilla.kernel.org/show_bug.cgi?id=14354





--- Comment #18 from Theodore Tso <tytso@mit.edu>  2009-10-12 02:18:41 ---
Created an attachment (id=23353)
 --> (http://bugzilla.kernel.org/attachment.cgi?id=23353)
jbd2 debugging patch

The jbd2-checksum-debugging patch adds two options which can be added to the
boot line.   The first, jbd2.xsum_debug=1, will print two additional kernel
messages when replaying a journal that will help debug checksums.   The second,
jbd2.ignore_xsum=1, will cause jbd2 to ignore any checksum errors.

If you can come up with a repeatable test case, it would be useful to apply
this patch and then add "jbd2.xsum_debug=1 jbd2.ignore_xsum=1" to the boot
line.   Then let me know (a) if the problem goes away when you add the boot
command-line options, and (b) give me the dmesg output either way.

Thanks!

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