Date: Sun, 22 Aug 2010 20:03:40 -0700
From: Greg KH <gregkh@suse.de>
To: Mark Stanovich <mrktimber@gmail.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>, torvalds@linux-foundation.org,
        linux-kernel@vger.kernel.org
Subject: Re: Linux 2.6.35.3
Message-ID: <20100823030340.GA14007@suse.de>
References: <AANLkTi=wyG13QOU3EQwaO3qBxY=aR=ftiP4s7YpemrPp@mail.gmail.com> <4C6F4BBB.5040207@zytor.com> <AANLkTi=sKH95tLee+H03ah=8dF6LV9hpw+1esGSZuHRS@mail.gmail.com> <4C71CF5B.3090505@zytor.com> <AANLkTi=PWY=n2nvDcZM4SB7Jo2DRadRSoNYT1unfJvZ9@mail.gmail.com>
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On Sun, Aug 22, 2010 at 09:56:19PM -0400, Mark Stanovich wrote:
> On Sun, Aug 22, 2010 at 9:31 PM, H. Peter Anvin <hpa@zytor.com> wrote:
> > On 08/20/2010 09:06 PM, Mark Stanovich wrote:
> >>>>
> >>>> I noticed that the latest version pulled from Linus's git tree did not
> >>>> have the problem. ?After looking at the changes to
> >>>> arch/x86/include/asm/cmpxchg_32.h, I cherry-picked two patches from
> >>>> Linus's tree that seemed to make a difference, namely:
> >>>>
> >>>> 69309a05907546fb686b251d4ab041c26afe1e1d
> >>>> 4532b305e8f0c238dd73048068ff8a6dd1380291
> >>>>
> >>>> Applying these patches solved the rebooting problem on 2.6.35.3
> >>>>
> >>>> I believe the same problem also happens for the latest stable version of
> >>>> 2.6.34, but did not verify the fix worked for the 2.6.34 stable releases.
> >>>>
> >>>> I don't know if this is helpful, but I thought I would let you know in
> >>>> case someone else is having the same problem.
> >>>>
> >>>> If you need any further information, just let me know.
> >>>>
> >>>
> >>> Yes, as a matter of fact, we have been trying to root-cause this
> >>> problem; please see:
> >>>
> >>> https://bugzilla.kernel.org/show_bug.cgi?id=16612
> >>>
> >>> If you could try the one-liner in there and see if it solves your
> >>> problem, it would be great.
> >>
> >> The patch for __set_64bit on top of 2.6.35.3 solves the rebooting problem!
> >>
> >>
> >
> > By the way, I think only 69309a05907546fb686b251d4ab041c26afe1e1d should
> > solve the problem. ?Mark, could you try only this patch?
> >
> 
> Tested 69309a05907546fb686b251d4ab041c26afe1e1d on top of 2.6.35.3 and
> this does solve the rebooting problem.

Wonderful, thanks for testing, I'll just queue this one up then.

greg k-h
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