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Re: [linux-lvm] severe problems to remove invalid/full snapshots with debian-etch



Hi Tomasz!

On Fri, 02 Mar 2007, Tomasz Chmielewski wrote:

> Tom Assmuth schrieb:
> >hi,
> >
> >i gave up using lvm2 with debian sarge cause to a lot of problems
> >concerning stability but now i gave it another try with my debian-etch
> >box. but here problems with snapshots are still severe.
> >
> >--
> >used system:
> >kernel: 2.6.18-3-686 (normal kernel version in etch)
> >lvm version
> >  LVM version:     2.02.07 (2006-07-17)
> >  Library version: 1.02.08 (2006-07-17)
> >  Driver version:  4.7.0
> >--
> >
> >problem: 
> >
> >if a snapshot runs full (having attributes like this calling
> >lvs: Swi-I- ) I of course try to remove it with lvremove:
> >
> >this will throw something like this on all consoles:
> >
> > kernel BUG at mm/slab.c:595!
> > invalid opcode: 0000 [#1]
> > EIP is at kmem_cache_free+0x29/0x6d
> > esi: daa2f28c   edi: d9439a88   ebp: 00036c68   esp: c593fdb0
> > Process lvremove (pid: 25402, ti=c593e000 task=c533aaa0 task.ti=c593e000)
> > Stack: 15f529ae daa2f28c dd08dc68 dc86c94e dbf84220 00006d8d 00008000 
> > daa2f240
> > ...
> > EIP: [<c0156f55>] kmem_cache_free+0x29/0x6d SS:ESP 0068:c593fdb0
> > ...
> 
> (...)
> 
> Check the answer to my earlier post ("moving logical volumes to another 
> system *remotely* - how?") by Bryn M. Reeves:
> 
>   This is a known issue in older kernels that was fixed upstream in
>   2.6.19. See:

thank you! I have tried 2.6.20 and this works now :-)

> 
>   http://www.uwsg.iu.edu/hypermail/linux/kernel/0612.1/2301.html
>   https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=204791

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