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

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Message-ID: <CANN689H1G-USQYQrOTb47Hrc7KMjLdxkppYCDKsTUy5WhuRs7w@mail.gmail.com>
Date:	Thu, 29 Sep 2011 13:25:00 -0700
From:	Michel Lespinasse <walken@...gle.com>
To:	Eric B Munson <emunson@...bm.net>
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, 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,

-- 
Michel "Walken" Lespinasse
A program is never fully debugged until the last user dies.
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