[linux-lvm] LVM, Reiserfs, and snapshots.

Patrick Caulfield caulfield at sistina.com
Tue Nov 13 02:31:01 UTC 2001


On Mon, Nov 12, 2001 at 01:26:57PM -0800, Petro wrote:
> On Mon, Nov 12, 2001 at 08:58:58AM +0000, Patrick Caulfield wrote:
> > On Sun, Nov 11, 2001 at 09:24:27PM -0800, Petro wrote:
> > >     Im having a bit of trouble here, and I'm hoping that someone on this 
> > >     list can assist me. 
> > > Nov 11 21:15:23 dbgsh01 kernel: reiserfs:warning: CONFIG_REISERFS_CHECK is set ON
> > > Nov 11 21:15:23 dbgsh01 kernel: reiserfs:warning: - it is slow mode for debugging.
> > > Nov 11 21:15:23 dbgsh01 kernel: reiserfs: checking transaction log (device 3a:01) ...
> > > Nov 11 21:15:23 dbgsh01 kernel: journal-1153: found in header: first_unflushed_offset 7026, last_flushed_trans_id 11094
> > > Nov 11 21:15:23 dbgsh01 kernel: journal-1006: found valid transaction start offs et 7026, len 3 id 11095
> > > Nov 11 21:15:23 dbgsh01 kernel: clm-2076: device is readonly, unable to replay log
> > > Nov 11 21:15:23 dbgsh01 kernel: Replay Failure, unable to mount
> > > Nov 11 21:15:23 dbgsh01 kernel: reiserfs_read_super: unable to initialize journal space
> > You need to apply the VFS lock patch in the LVM PATCHES directory to make
> > reiserfs snapshots work.
> 
>     Are/were these part of the -ac patchset? 
>
>     I ask because I have it working with 2.4.8-ac8. 

No, I don't think so. You can mount reiserfs snapshots if you make them off an
unmounted filesystem but other than that it shouldn't work without the VFS
patch. Maybe you have been lucky :^)


patrick





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