mark,
yes, thank you, that looks very much like it. CentOS is still at 5.4,
version 5.5 is long overdue :-(
tnx & cu
MG> On 05/10/2010 12:20 PM, Dave Chinner wrote:
>> On Sun, May 09, 2010 at 08:48:00PM +0200, Rainer Fuegenstein wrote:
>>>
>>> today in the morning some daemon processes terminated because of
>>> errors in the xfs file system on top of a software raid5, consisting
>>> of 4*1.5TB WD caviar green SATA disks.
>>
>> Reminds me of a recent(-ish) md/dm readahead cancellation fix - that
>> would fit the symptoms of (btree corruption showing up under heavy IO
>> load but no corruption on disk. However, I can't seem to find any
>> references to it at the moment (can't remember the bug title), but
>> perhaps your distro doesn't have the fix in it?
MG> If it's the bug that Dave's thinking of, it's an issue with md
MG> error handling and the BIO_UPTODATE flag, see :
MG> http://www.mail-archive.com/linux-raid@xxxxxxxxxxxxxxx/msg06628.html
MG> For RHEL, this is addressed in Red Hat BZ 512552
MG> https://bugzilla.redhat.com/show_bug.cgi?id=512552
MG> upstream commit c2b00852fbae4f8c45c2651530ded3bd01bde814
MG> Cheers
MG> -- Mark
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Unix gives you just enough rope to hang yourself -- and then a couple of more
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(Eric Allman)
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