[Xen-devel] RE: [patch 1/1] ext4-fix-dirty-extent-when-origin-leaf-extent-reac.patch

[MaoXiaoyun <tinnycloud@xxxxxxxxxxx>]

----------------------------------------
> Date: Mon, 26 Sep 2011 10:28:08 -0400
> From: konrad.wilk@xxxxxxxxxx
> To: tinnycloud@xxxxxxxxxxx
> CC: linux-ext4@xxxxxxxxxxxxxxx; xen-devel@xxxxxxxxxxxxxxxxxxx; tytso@xxxxxxx; 
> jack@xxxxxxx
> Subject: Re: [patch 1/1] 
> ext4-fix-dirty-extent-when-origin-leaf-extent-reac.patch
>
> On Sun, Sep 25, 2011 at 04:45:39PM +0800, MaoXiaoyun wrote:
> >
> >
> > Hi:
> >
> > We met an ext4 BUG_ON in extents.c:1716 which crash kernel flush thread, 
> > and result in disk unvailiable.
> >
> > BUG details refer to: 
> > http://www.gossamer-threads.com/lists/xen/devel/217091?do=post_view_threaded
> >
> > Attached is the fix, verified in our env.
>
> So.. you are asking for this upstream git commit to be back-ported to 2.6.32, 
> right?
>
 
The patch is for 2.6.39. It can be patched on 2.6.32 too.
Thanks.

> >
> > Without this patch, more than 3 servers hit BUG_ON in our hundreds of 
> > servers every day.
> >
> >
> > many thanks.
>
>                                         

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