linux-kernel - Re: 2.6.39-rc4+: Kernel leaking memory during FS scanning, regression?

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Date:	Thu, 28 Apr 2011 11:45:03 +0200
From:	Sedat Dilek <sedat.dilek@...glemail.com>
To:	Bruno Prémont <bonbons@...ux-vserver.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Mike Frysinger <vapier.adi@...il.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	LKML <linux-kernel@...r.kernel.org>, linux-mm@...ck.org,
	linux-fsdevel@...r.kernel.org,
	"Paul E. McKenney" <paul.mckenney@...aro.org>,
	Pekka Enberg <penberg@...nel.org>,
	Mike Galbraith <efault@....de>
Subject: Re: 2.6.39-rc4+: Kernel leaking memory during FS scanning, regression?

Hi,

not sure if my problem from linux-2.6-rcu.git#sedat.2011.04.23a is
related to the issue here.

Just FYI:
I am here on a Pentium-M (uniprocessor aka UP) and still unsure if I
have the correct (optimal?) kernel-configs set.

Paul gave me a script to collect RCU data and I enhanced it with
collecting SCHED data.

In the above mentionned GIT branch I applied these two extra commits
(0001 requested by Paul and 0002 proposed by Thomas):

patches/0001-Revert-rcu-restrict-TREE_RCU-to-SMP-builds-with-PREE.patch
patches/0002-sched-Add-warning-when-RT-throttling-is-activated.patch

Furthermore, I have added my kernel-config file, scripts, patches and
logs (also output of 'cat /proc/cpuinfo').

Hope this helps the experts to narrow down the problem.

Regards,
- Sedat -

P.S.: I adapted the patch from [1] against
linux-2.6-rcu.git#sedat.2011.04.23a, but did not help here.

[1] http://lkml.org/lkml/2011/4/22/35

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