Re: Linux 2.6.35.3

From: Greg KH
Date: Mon Aug 23 2010 - 17:52:31 EST


On Mon, Aug 23, 2010 at 09:47:23AM -0400, Mark Stanovich wrote:
> On Sun, Aug 22, 2010 at 11:03 PM, Greg KH <gregkh@xxxxxxx> wrote:
> > 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@xxxxxxxxx> 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.
> >
>
> 69309a05907546fb686b251d4ab041c26afe1e1d is also needed on top of
> 2.6.34.5 in order for my machine to boot properly.

Ok, now queued up for both .34 and .35 stable trees.

thanks,

greg k-h
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