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SubjectRe: Kernel 2.6.30.4 XFS(..?) regression (& with/2.6.31-rc6)


On Sun, 23 Aug 2009, Christoph Hellwig wrote:

> Ok, let's see where errors could happen then.
>
> There are four theoretical possibilities:
>
> (a) XFS
> (b) loop driver
> (c) crypto loop code
> (d) block layer
>
> Or combinations thereof.
>
> I would take (a) and (d) as more unlikely as they tend to get used much
> more and I would have heard more bug reports already.
>
> The cryptoloop code hasn't changed at all since 2.6.29.
>
> The loop code howver has a very interesting commit just after 2.6.39:
>
> commit 68db1961bbf4e16c220ccec4a780e966bc1fece3
> Author: Nikanth Karthikesan <knikanth@suse.de>
> Date: Tue Mar 24 12:29:54 2009 +0100
>
> loop: support barrier writes
>
> Can you try reverting this one (it cleanly reverse-applies against
> 2.6.30 and current mainline) and see if that makes a difference?
>

Hello Christoph,

# patch -p1 -R < ../unpatch.patch
patching file drivers/block/loop.c
Hunk #1 succeeded at 473 (offset -1 lines).
Hunk #2 succeeded at 804 (offset -22 lines).
#

Patched, we'll see if the problem recurs.. thanks!

Justin.


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