linux-kernel - Re: [PATCH] mm: fix page_mkclean_one (was: 2.6.19 file content corruption on ext3)

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Message-Id: <1166978752.7022.1.camel@localhost>
Date:	Sun, 24 Dec 2006 18:45:51 +0200
From:	Andrei Popa <andrei.popa@...eo.ro>
To:	Andrew Morton <akpm@...l.org>
Cc:	Linus Torvalds <torvalds@...l.org>,
	Gordon Farquharson <gordonfarquharson@...il.com>,
	Martin Michlmayr <tbm@...ius.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Hugh Dickins <hugh@...itas.com>,
	Nick Piggin <nickpiggin@...oo.com.au>,
	Arjan van de Ven <arjan@...radead.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm: fix page_mkclean_one (was: 2.6.19 file content
	corruption on ext3)

On Sun, 2006-12-24 at 04:31 -0800, Andrew Morton wrote:
> On Sun, 24 Dec 2006 14:14:38 +0200
> Andrei Popa <andrei.popa@...eo.ro> wrote:
> 
> > > - mount the fs with ext2 with the no-buffer-head option.  That means either:
> > > 
> > >   grub.conf:  rootfstype=ext2 rootflags=nobh
> > >   /etc/fstab: ext2 nobh
> > 
> > ierdnac ~ # mount
> > /dev/sda7 on / type ext2 (rw,noatime,nobh)
> > 
> > I have corruption.
> > 
> > > 
> > > - mount the fs with ext3 data=writeback, nobh
> > > 
> > >   grub.conf:  rootfstype=ext3 rootflags=nobh,data=writeback  (I hope this works)
> > >   /etc/fstab: ext2 data=writeback,nobh
> > 
> > ierdnac ~ # mount
> > /dev/sda7 on / type ext3 (rw,noatime,nobh)
> > 
> > ierdnac ~ # dmesg|grep EXT3
> > EXT3-fs: mounted filesystem with writeback data mode.
> > EXT3 FS on sda7, internal journal
> > 
> > I don't have corruption. I tested twice.
> 
> This is a surprising result.  Can you pleas retest ext3 data=writeback,nobh?

Yes, no corruption. Also tested only with data=writeback and had no
corruption.

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