XFS lockup on 2.6.12-1.1376_FC3smp

XFS lockup on 2.6.12-1.1376_FC3smp

[Joakim Tysseng]

Hi,

I'm experiencing a serious problem with XFS on 2.6.12-1.1376_FC3smp

The filesystem locks up (no write possible, mysql won't shut down, 
impossible to reboot machine from console) while running MySQL under a 
high load. The only error messages I can find are:

thales kernel: allocation failed: out of vmalloc space - use 
vmalloc=<size> to increase size.
thales kernel: XFS: possible memory allocation deadlock in kmem_alloc 
(mode:0x250

I've tried increasing /proc/sys/vm/min_free_kbytes to 16386 without success.

Any ideas? Where should I start looking, what logs, programs/tests can i 
run?

The problem does not appear immediately, the shortest time from reboot 
to failure has been 4 hours.

Machine config:
Dell 6650 / 4 x P4 Xeon with 12GB ram.
1.5T SCSI disk array / PW220S / Perc 4/DC
running XFS on top of LVM.
--
Sincerely,
Joakim Tysseng

Re: XFS lockup on 2.6.12-1.1376_FC3smp

[Chris Wedgwood]

On Thu, Sep 15, 2005 at 01:47:44PM +0200, Joakim Tysseng wrote:

> I'm experiencing a serious problem with XFS on 2.6.12-1.1376_FC3smp

Red Hat kernel? 4K stacks right?

> running XFS on top of LVM.

Are 4k stacks with XFS over LVM well tested?  In the past there have
been issues and it's not clear all of these have been resolved.