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From: Tejun Heo on 24 Jun 2010 04:00
On 06/24/2010 09:45 AM, Xiaotian Feng wrote:
>> It's probably the same bug Cliff Wickman reported.
>> per_cpu_ptr_to_phys() was using wrong first chunk match logic which
>> ends up passing wrong addresses to vmalloc_to_page(). I have the
>> following fix patch queued in percpu#for-linus branch and was waiting
>> for Linus to come back.
>>
>> http://git.kernel.org/?p=linux/kernel/git/tj/percpu.git;a=commitdiff_plain;h=9983b6f0cf8263e51bcf4c8a9dc0c1ef175b3c60;hp=a92d3ff9e5dbd958d8008a3e7a573e988e370ca3
>>
>> Can you please verify the above patch fixes the problem?
>
> Yes, that patch fixes the problem on my box, thanks.

Thanks for verifying. Greg, we'll have to wait till Linus comes back
for mainline but maybe it's a good idea to put this into -stable queue
early? It's a rather straight forward bug fix and unlikely to be
contentious.

Thanks.

--
tejun
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