Bug#445957: linux-source-2.6.22: creating a snapshot hangs the system
On Tue, Oct 09, 2007 at 01:04:33PM +0200, Thomas Kotzian wrote:
> Package: linux-source-2.6.22
> Version: 2.6.22-4
> Severity: grave
> Justification: causes non-serious data loss
This bug does not appear to directly cause data loss.
> when i create a snapshot with for example
> lvcreate -s -L 3g -n snap_var_lv /dev/system_vg/var_lv
> the command hangs, is uninterruptable and the system is frozen.
I'm using 2.6.22 and frequently use LVM snapshotting. This bug is not
reproducible for me.
> tested with linux-image-2.6.22-amd64, linux-image-2.6.22-486 and some
> systems linux-image-2.6.21-{amd64,486} works perfectly.
It's not clear to me from this comment whether you tested each of these
kernels on the same system. How much free space do you have on the VG where
you're snapshotting?
Are you using lvm version 1 or 2? I distantly recall an issue of this sort
occurring when trying to snapshot a version 1 LV with current tools, but I'm
not sure if the current userspace tools in unstable support version 1
metadata at all.
--
Steve Langasek Give me a lever long enough and a Free OS
Debian Developer to set it on, and I can move the world.
vorlon@debian.org http://www.debian.org/
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