Re: [PATCH] mm: fix page_mkclean_one (was: 2.6.19 file contentcorruption on ext3)

From: Andrei Popa
Date: Sun Dec 24 2006 - 12:07:33 EST


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@xxxxxxxx> 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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