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Date: Thu, 29 Sep 2011 17:18:18 -0400
From: Eric B Munson <emunson@mgebm.net>
To: Michel Lespinasse <walken@google.com>
Cc: <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
        Dave Hansen <dave@linux.vnet.ibm.com>, Rik van Riel <riel@redhat.com>,
        Balbir Singh <bsingharora@gmail.com>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Andrea Arcangeli <aarcange@redhat.com>,
        Johannes Weiner <jweiner@redhat.com>,
        KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
        Hugh Dickins <hughd@google.com>, Michael Wolf <mjwolf@us.ibm.com>
Subject: Re: [PATCH 0/9] V2: idle page tracking / working set estimation
In-Reply-To: <CANN689H1G-USQYQrOTb47Hrc7KMjLdxkppYCDKsTUy5WhuRs7w@mail.gmail.com>
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 <20110929164319.GA3509@mgebm.net>
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 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@mgebm.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