[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] Silent filesystem/qcow2 corruptions with qemu-kvm-1.0 a
From: |
Tiziano Müller |
Subject: |
Re: [Qemu-devel] Silent filesystem/qcow2 corruptions with qemu-kvm-1.0 and 1.1.1 |
Date: |
Fri, 12 Oct 2012 10:53:31 +0200 |
Am Freitag, den 12.10.2012, 10:28 +0200 schrieb Stefan Hajnoczi:
> On Thu, Oct 11, 2012 at 03:33:23PM +0200, Tiziano Müller wrote:
> > One test case was:
> > * xfs_repair /dev/vda2 -> corruptions found and fixed
> > * xfs_repair /dev/vda2 -> no corruptions found
>
> From here...
>
> > * mount /dev/vda2 /mnt/something
> > * find /mnt/something > /dev/null
> > * umount /mnt/something
>
> ...to here is mostly read-only.
>
> > * xfs_repair /dev/vda2 -> corruptions found again
>
> And yet corruptions are reported inside the guest!
>
> Can you retry with "mount -o ro" just for sanity? If you still see
> corruptions when the device was mounted read-only, then perhaps the
> mount/find/umount sequence itself is innocent.
Will try as soon as possible. The problem is that we had that case twice
so far and no way to trigger it.
>
> Have you tried raw image files? In other words, do you know that the
> corruption only happens with qcow2?
Will do right now.
thanks a lot!
--
stepping stone GmbH
Neufeldstrasse 9
CH-3012 Bern
Telefon: +41 31 332 53 63
www.stepping-stone.ch
address@hidden