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[linux-lvm] Re: [OOPS] full snapshot (with test vfs locking patch for reiserfs snapshots in 11-pre)



On October 8, 2001 10:29 pm, Chris Mason wrote:
> On Monday, October 08, 2001 09:57:59 PM -0400 Ed Tomlinson <tomlins CAM ORG> wrote:
> > Hi Chris
> >
> >> Ok, that first patch won't quite fix it, as we can still oops
> >> in lvm_snapshot_COW.  This one works better for me:
> >
> > Looks like this one has problems too.  Here is the oops I get with it:
> >>> EIP; d680b178 <[lvm-mod]_disable_snapshot+10/44>   <=====
> >
> > Trace; d680a50a <[lvm-mod]lvm_drop_snapshot+22/94>
> > Trace; d680aafc <[lvm-mod]lvm_snapshot_COW+3b4/3f4>
> > Trace; d680d3ca <[lvm-mod]lvm_name+8c2/e76>
>
> Hmmm, this should be the same as the bug fixed by the second patch.  We
> know the snapshot hasn't been released yet when lvm_snapshot_COW is called,
> so _disable_snapshot should not oops.

Chris, with 2.4.11, your test vfs locking patch (manually fixing a reject) plus
the second snapshot full patch with the addon from this message I have not been
able to break things.  

If you are happy too, suggest you post the patches.

Thanks
Ed Tomlinson



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