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Re: [xfs-masters] new XFS bug was introduced in 2.6.32

To: Greg KH <gregkh@xxxxxxx>
Subject: Re: [xfs-masters] new XFS bug was introduced in 2.6.32
From: Dave Chinner <david@xxxxxxxxxxxxx>
Date: Wed, 8 Jun 2011 15:30:05 +1000
Cc: Stefan Priebe - Profihost AG <s.priebe@xxxxxxxxxxxx>, stable@xxxxxxxxxx, xfs-masters@xxxxxxxxxxx
In-reply-to: <20110607225158.GA27696@xxxxxxx>
References: <4DEEA18D.7040207@xxxxxxxxxxxx> <20110607222307.GA26904@xxxxxxx> <4DEEA6BF.70103@xxxxxxxxxxxx> <20110607225158.GA27696@xxxxxxx>
User-agent: Mutt/1.5.20 (2009-06-14)
On Tue, Jun 07, 2011 at 03:51:58PM -0700, Greg KH wrote:
> On Wed, Jun 08, 2011 at 12:31:27AM +0200, Stefan Priebe - Profihost AG wrote:
> > >>The vanilla kernel list tolds me to contact you directly.
> > >They did?  For what?
> > Sorry if this is wrong. I asked there (linux-kernel@xxxxxxxxxxxxxxx)
> > who i should contact and they told me i should contact the kernel
> > maintainer for 2.6.32 to report it.
> > 
> > >Stable kernel stuff should go to stable@xxxxxxxxxx, not to me directly.
> > >
> > >Anyway, is there a fix that should be added to the .32-stable tree
> > >somewhere for this issue?
> > The problem is that the fix was never applied to 2.6.32 as it needs
> > to get backported first.
> > 
> > Redhat has backported the patch here:
> > https://bugzilla.redhat.com/show_bug.cgi?id=642680
> > 
> > >I can apply patch 081003fff467ea0e727f66d5d435b4f473a789b3 to the tree,
> > >but could you verify that it resolves your issue first before I do that?
> > I would if someone can provide a backport for this fix. I tried it
> > myself but i'm not a kernel hacker nor a C man.
> > 
> > At least i'm seeing exactly the behaviour described in the fix and
> > at the redhat bugzilla:
> > https://bugzilla.redhat.com/show_bug.cgi?id=642680
> 
> Ok, but Red Hat doesn't have the backported patch there, so I don't have
> anything to go off of here :(
> 
> I tried to backport the patch to 2.6.32, but it doesn't apply at all,
> and I don't see how to make it work either.
> 
> Any XFS developers want to help out and provide a fix for this problem
> on the .32-stable kernel that I could apply?

I'm travelling for the next week and a half, so I won't be able to
get to it any time soon....

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx

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