[dm-devel] Re: [linux-lvm] snapshot with 2.6.5 kernel

[Dave Olien]

I'm running linux 2.6.6-rc2-udm1.  I also have a very repeatable
oops running snapshot.  I'm working on a patch.  I'll post it
in the next day or two to lmv-devel.

Dave Olien
OSDL

On Tue, May 11, 2004 at 01:13:22PM +0200, Heinz Mauelshagen wrote:
> On Sun, May 02, 2004 at 11:42:05PM -0700, Karen Shaeffer wrote:
> > 
> > Hello,
> > 
> > I am running a patched 2.6.5 kernel and using lvm2. Everything
> > looks ok, but the snapshot may be having problems. Else I just
> > may be ignorant about how to use the snapshot.
> > 
> > Here is what I am doing on a generic X86 server. I create a logical
> > volume group out of a number of PEs that are properly configured. Then I
> > create a logical volume. Then I start to dump a very large tar file
> > into the logical volume. As this tar file is inflating the files into
> > the logical volume, I then simultaneously create a snapshot volume of
> > the recently created logical volume. The very large tar archive that
> > was in the process of inflating its contents continues for a while,
> > but finally just crashes and hangs at some point.
> > 
> > Am I missunderstanding how to use snapshot here? Or is this just
> > severly broken software? Any advise is appreciated.
> 
> 
> You should be able to create a snapshot fine in ythat situation, even though
> the creation will happen slow under load.
> 
> Can you repeat the case ?
> Do you have an oops ? If so, please provide the ksymoops output
> for further analysis of the problem.
> 
> > 
> > Thanks,
> > Karen
> > -- 
> >  Karen Shaeffer
> >  Neuralscape, Palo Alto, Ca. 94306
> >  shaeffer at neuralscape.com  http://www.neuralscape.com
> > _______________________________________________
> > linux-lvm mailing list
> > linux-lvm at redhat.com
> > https://www.redhat.com/mailman/listinfo/linux-lvm
> > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
> 
> -- 
> 
> Regards,
> Heinz    -- The LVM Guy --
> 
> *** Software bugs are stupid.
>     Nevertheless it needs not so stupid people to solve them ***
> 
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> 
> Heinz Mauelshagen                                 Red Hat GmbH
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