Re: Oops on 2.6.9-ac16: xfs, dm and md may be involved

[Joerg Sommrey <jo@sommrey.de>]

On Wed, Dec 22, 2004 at 06:26:06PM +0000, Christoph Hellwig wrote:
> On Tue, Dec 21, 2004 at 07:57:54PM +0100, Joerg Sommrey wrote:
> > Hello,
> > 
> > last night my box died with a kernel oops.  There was a backup
> > running at that time. The setup:
> > - 2 SATA disks + 1 SCSI disk
> > - SATA partitions build up md-raid-arrays (level 0 and 1)
> > - md-raid-devices and SCSI partitions are physical volumes for dm
> > - dm logical volumes are used for xfs filesystems
> > - backup is done on dm-snapshots of those filesystems
> 
> Given the strange backtrace and this enormous stack of drivers I bet
> you're seeing a stack overflow.  
> 
Does this mean that this kind of stuff just doesn't work?  I was running
a 4K-stack kernel with this "stack of drivers" for quiet some time without
problems.  The problems started around 2.6.9-pre-something.  Converting
to 8K-stacks didn't help.  Is this only xfs related?

-jo

-- 
-rw-r--r--  1 jo users 63 2004-12-21 21:16 /home/jo/.signature