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

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Date:	Thu, 28 Apr 2011 22:29:15 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Bruno Prémont <bonbons@...ux-vserver.org>
cc:	sedat.dilek@...il.com, Mike Galbraith <efault@....de>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	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>
Subject: Re: 2.6.39-rc4+: Kernel leaking memory during FS scanning,
 regression?

On Thu, 28 Apr 2011, Bruno Prémont wrote:
> On Thu, 28 April 2011 Thomas Gleixner <tglx@...utronix.de> wrote:
> > -	return idle ? HRTIMER_NORESTART : HRTIMER_RESTART;
> > +	return HRTIMER_RESTART;
> 
> This doesn't help here.
> Be it applied on top of the others, full diff attached
> or applied alone (with throttling printk).
> 
> Could it be that NO_HZ=y has some importance in this matter?

Might be. Can you try with nohz=off on the kernel command line ?
 
Can you please provide the output of /proc/timer_list ?

Thanks,

	tglx