[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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