[CentOS] File system cache corruption with CentOS4?
James Pearson
james-p at moving-picture.com
Thu Dec 6 17:12:11 UTC 2007
Dan Halbert wrote:
> James Pearson wrote:
>
>> Just wondering if anyone else has come across an issue where files
>> cached in memory appear to become 'corrupted' - for example, on one
>> workstation, I've just had the issue:
>
> There is a kernel bug for this kind of problem but it is for AMD x86_64
> only: http://bugzilla.kernel.org/show_bug.cgi?id=7768 . Since you are
> reporting this for i686 as well, I'm not sure it's the same thing. The
> symptom is that an entire 4k cached file block is trashed. This was
> fixed upstream for 5.x:
> https://bugzilla.redhat.com/show_bug.cgi?id=238709. I cannot tell if a
> similar patch has gone into a 4.x kernel: the appropriate RedHat bug
> (https://bugzilla.redhat.com/show_bug.cgi?id=223238) is unfortunately
> private. Someone could look at the latest kernel sources and see.
Thanks for the info - the machine I recently noticed this 'yum' issue is
a Supermicro X5DA8 with 2 x 3Ghz (32 bit) Xeons - so not a AMD x86_64
issue - as that kernel bugzilla issue seems to be about ...
Anyway, I'll keep poking about ...
Thanks
James Pearson
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