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SubjectRe: Linux
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
>>> 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:
>> 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 solves the rebooting problem!

By the way, I think only 69309a05907546fb686b251d4ab041c26afe1e1d should
solve the problem. Mark, could you try only this patch?


H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.

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