linux-kernel - Re: [PATCH 0/9] V2: idle page tracking / working set estimation

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Message-ID: <4186d5662b3fb21af1b45f8a335414d3@mgebm.net>
Date:	Thu, 29 Sep 2011 17:18:18 -0400
From:	Eric B Munson <emunson@...bm.net>
To:	Michel Lespinasse <walken@...gle.com>
Cc:	<linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Dave Hansen <dave@...ux.vnet.ibm.com>,
	Rik van Riel <riel@...hat.com>,
	Balbir Singh <bsingharora@...il.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Johannes Weiner <jweiner@...hat.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Hugh Dickins <hughd@...gle.com>,
	Michael Wolf <mjwolf@...ibm.com>
Subject: Re: [PATCH 0/9] V2: idle page tracking / working set estimation

 On Thu, 29 Sep 2011 13:25:00 -0700, Michel Lespinasse wrote:
> On Thu, Sep 29, 2011 at 9:43 AM, Eric B Munson <emunson@...bm.net> 
> wrote:
>> I have been trying to test these patches since yesterday afternoon. 
>>  When my
>> machine is idle, they behave fine.  I started looking at performance 
>> to make
>> sure they were a big regression by testing kernel builds with the 
>> scanner
>> disabled, and then enabled (set to 120 seconds).  The scanner 
>> disabled builds
>> work fine, but with the scanner enabled the second time I build my 
>> kernel hangs
>> my machine every time.  Unfortunately, I do not have any more 
>> information than
>> that for you at the moment.  My next step is to try the same tests 
>> in qemu to
>> see if I can get more state information when the kernel hangs.
>
> Could you please send me your .config file ? Also, did you apply the
> patches on top of straight v3.0 and what is your machine like ?
>
> Thanks,


 My .config will come separately to you.  I applied the patches to 
 Linus' master branch as of yesterday.  My machine is a single Xeon 5690 
 with 12G of ram (do you need more details than that?)

 Thanks,
 Eric
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