Bug#603835: linux-image-2.6.32-5-amd64: page allocation failures while transferring data with virtio
On Wed, 2010-11-17 at 23:57 +0000, Ben Hutchings wrote:
> On Wed, 2010-11-17 at 19:44 +0100, Frederik Himpe wrote:
> > Package: linux-2.6
> > Version: 2.6.32-27
> > Severity: important
> >
> > I've got a KVM virtual machine which is using bacula-fd to back-up its
> > files to another virtual machine.
> >
> > Regularly, while back-ing up, backtraces start appearing in the kernel
> > logs and bacula-fd starts eating up a huge amount of memory.
> [...]
>
> And why is it the kernel's fault if bacula eats all the memory?
If the only problem is that bacula is eating all memory, than the kernel
OOM kernel should kill it instead of letting virtio networking die.
However, seeing how much similar problem reports with page allocation
failures in virtio there are on the web, not involving bacula, I would
rather suspect the problem is in virtio itself.
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=576838#69 also
indicates that this bug was actually not fixed in reality, and that
using another network driver works around the problem.
--
Frederik Himpe <fhimpe@vub.ac.be>
Vrije Universiteit Brussel
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