linux-kernel - Re: Linux 2.6.35.3

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Message-ID: <AANLkTi=Dp90i24pm41=nM2ontGT-QJ9Ju+CJzN1mLCXv@mail.gmail.com>
Date:	Mon, 23 Aug 2010 09:47:23 -0400
From:	Mark Stanovich <mrktimber@...il.com>
To:	Greg KH <gregkh@...e.de>
Cc:	"H. Peter Anvin" <hpa@...or.com>, torvalds@...ux-foundation.org,
	linux-kernel@...r.kernel.org
Subject: Re: Linux 2.6.35.3

On Sun, Aug 22, 2010 at 11:03 PM, Greg KH <gregkh@...e.de> 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@...or.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.
>

69309a05907546fb686b251d4ab041c26afe1e1d is also needed on top of
2.6.34.5 in order for my machine to boot properly.

    - Mark
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