linux-kernel - Re: iotop: khugepaged at 99.99% (2.6.38.3)

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Date:	Thu, 15 Sep 2011 15:50:51 +0800
From:	Lin Ming <mlin@...pku.edu.cn>
To:	Thomas Sattler <tsattler@....de>
Cc:	slawomir.czarko@...il.com,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andrea Arcangeli <aarcange@...hat.com>
Subject: Re: iotop: khugepaged at 99.99% (2.6.38.3)

On Thu, Sep 15, 2011 at 3:24 PM, Thomas Sattler <tsattler@....de> wrote:
> Am 15.09.2011 08:48, schrieb Lin Ming:
>>> Hi, Thomas
>>>
>>> Do you still see this problem on latest kernel(2.6.31-rc6)?
>>> I try to run firefox (>50 open Tabs), but can't reproduce
>>> this on 2.6.31-rc6 kernel.
>>
>> Sorry, I mean 3.1-rc6
>
> For me the problem was gone with Mel Gorman's patchset "Fix
> compaction stalls due to accounting errors in isolated page
> accounting". I applied them to 2.6.38.8 and never had any
> problems.
>
> They went into 2.6.39.4 and 3.0 and both machines that were
> affected are now running fine. (One of the machine throws
> MCE-Errors every now and than, but this is another problem.)

Thanks for the info.

Strange that Slawomir still saw the similar problem for 2.6.40(that is
3.0) kernel.
http://marc.info/?l=linux-kernel&m=131600780131502&w=2
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