[CentOS] Urgent: filesystem corruption on 2.6.18-128.1.6.el5
Gordon Messmer
yinyang at eburg.com
Tue Apr 14 18:11:30 UTC 2009
Gordon Messmer wrote:
> I opened bug 494927 with Red Hat after seeing this kernel error on two
> different hosts, just a few days after updating or installing CentOS 5.3:
> https://bugzilla.redhat.com/show_bug.cgi?id=494927
In an attempt to confirm this bug, I set up a system under KVM and
started three loops to generate filesystem activity. I ran bonnie++ as
two different users in separate directories under /var/tmp, and an
additional loop copying /usr to a directory under /var/tmp and then
removing it. The /var filesystem became corrupt relatively quickly.
I'm now nearly certain that there is a severe filesystem corruption bug
in 2.6.18-128.1.6.el5. Please, if you are running this kernel, reboot
your systems into single user mode and check your filesystems with "fsck
-f". Your filesystems may appear clean despite corruption. My test
system exhibited this behavior. Even though the corruption should have
been obvious (files could not be deleted), the FS was marked clean.
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