[CentOS] File system cache corruption with CentOS4?

Dan Halbert halbert at everyzing.com
Wed Dec 5 15:53:23 UTC 2007


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.

Dan



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