On Thu, Jun 09, 2005 at 12:16:57PM +0200, Klaus Strebel wrote:
> Sven Riedel schrieb:
> >I'm creating a backup script for a database using lvm snapshots.
> >The script ran fine for a few test runs, then I added xfs_freeze -f
> >just before the lvcreate command, as per HOWTO recipe. Now
> >lvcreate went into deep-sleep and wont wake up:
> >update:~/bin# ps ax | grep lvcreate
> >25053 pts/2 D<L+ 0:00 lvcreate -s -L 55M -n tables_snap
> > /dev/database_vg/tables_lv
> >Running lvdisplay in a different terminal to see if lvm itself
> >is still seeing all LVs results in lvdisplay going into
> >deep-sleep mode as well. Doing an strace -p 25053
> >doesn't display anything (strace won't catch my interrupts
> >either, but according to ps it's in a regular sleep).
> >dmesg doesn't say anything to this situation.
> >Is there a known issue with snapshots and xfs_freeze?
> >Any way I can gather pertinent debugging info?
> >I'm running lvm 2.01.04 (package from debian unstable).
> The HOWTO is way old, with LVM2 the XFS filesystem is 'frozen'
> automaticly on the mount -onouuid,ro ( not quite sure, but probably also
> for LVM1 ..., think it's in the XFS code ).
> So, forget xfs_freeze. It's freezing your box, not your filesystems.
I'm *slowly* working on getting the howto updated for LVM2. I should have the
xfs_freeze-related lines out today. I've been meaning to do that for a while.
Please e-mail me if you see other things that are wrong in the HowTo.
AJ Lewis Voice: 612-638-0500
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