[linux-lvm] xfs freeze nad snapshot problem

[linux-lvm] xfs freeze nad snapshot problem

[Piw]

Hello

I got following problem:
Trying to make snapshot of lv with xfs filesystem:
# xfs_freeze -f /data
# lvcreate -L20G --snapshot --name snap /dev/VG/LV

and system lock...

(kill -9 doesnt work)

I have to create another session and remowe lockup with:
# xfs_freeze -u /data

If I try to create snapshot without freezeng xfs, it works (bo no 
cohesion is guaranteed).

kernel: 2.6.9
lvm:	2.00.25
dm:	1.00.19

Anyone can help?
TIA

PS.
This problem is mentioned in:
http://www.netsys.com/suse-linux-e/2002/08/msg01933.html
but no sloution
--
Piw

Re: [linux-lvm] xfs freeze nad snapshot problem

[Greg Freemyer]

On Mon, 08 Nov 2004 15:30:51 +0100, Piw <piw@e-liberty.pl> wrote:
> Hello
> 
> I got following problem:
> Trying to make snapshot of lv with xfs filesystem:
> # xfs_freeze -f /data
> # lvcreate -L20G --snapshot --name snap /dev/VG/LV
> 
> and system lock...
> 
> (kill -9 doesnt work)
> 
> I have to create another session and remowe lockup with:
> # xfs_freeze -u /data
> 
> If I try to create snapshot without freezeng xfs, it works (bo no
> cohesion is guaranteed).
> 
> kernel: 2.6.9
> lvm:    2.00.25
> dm:     1.00.19
> 
> Anyone can help?
> TIA
> 
> PS.
> This problem is mentioned in:
> http://www.netsys.com/suse-linux-e/2002/08/msg01933.html
> but no sloution
> --
> Piw

I have not tried it with 2.6 kernel series and LVM2 userland, but
snapshots were (and are) working fine with later 2.4.x kernels and LVM
1 userland.

I wrote xfstests/068 a couple years ago to confirm they were working
reliably then.
 
Hopefully it still works?  But 068 may need updating for LVM2?

http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-cmds/xfstests/

Greg
-- 
Greg Freemyer