linux-kernel - Re: kmemleak, cpu usage jump out of nowhere

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Date:	Tue, 03 Aug 2010 11:15:24 +0200
From:	damien.wyart@...e.fr
To:	Zeno Davatz <zdavatz@...il.com>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	Pekka Enberg <penberg@...helsinki.fi>,
	Damien Wyart <damien.wyart@...e.fr>,
	Catalin Marinas <catalin.marinas@....com>,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>, x86@...nel.org,
	mingo@...e.hu, yinghai@...nel.org
Subject: Re: kmemleak, cpu usage jump out of nowhere

> > Vacation.. but now I'm back ;-)
> >
> > Even something simple as: perf top -r 1 (make sure you're root in order
> > to run with real-time prios) could give a clue as to what is consuming
> > all your cpu-time.
> >
> > Or did the issue get sorted already?
>
> Thank you for the hint.
>
> I am on 2.6.35 now and all seems to be fine again.

Are you 100% sure you compiled it with CONFIG_NO_BOOTMEM enabled?

I did not test 2.6.35 yet but I did not see anything related to this bug
commited since the discussion so I am very surprised the problem disappeared by
itself...

Will be on vacation very soon, so not sure I will have time to test 2.6.35
before leaving.

Damien
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