linux-kernel - Re: v3.4-rc2 out-of-memory problems (was Re: 3.4-rc1 sticks-and-crashs)

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Message-ID: <4F89D6F1.8020604@redhat.com>
Date:	Sat, 14 Apr 2012 15:58:41 -0400
From:	Rik van Riel <riel@...hat.com>
To:	werner <w.landgraf@...ru>
CC:	David Rientjes <rientjes@...gle.com>,
	Colin Cross <ccross@...gle.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Hugh Dickins <hughd@...gle.com>, linux-kernel@...r.kernel.org,
	Oleg Nesterov <oleg@...hat.com>,
	Rabin Vincent <rabin.vincent@...ricsson.com>,
	Christian Bejram <christian.bejram@...ricsson.com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Anton Vorontsov <anton.vorontsov@...aro.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org
Subject: Re: v3.4-rc2 out-of-memory problems (was Re: 3.4-rc1 sticks-and-crashs)

On 04/14/2012 03:38 PM, werner wrote:
> Perhaps someone could check this
>
> Ocasionally it still happens that the computer slows down very, during
> appr. 1 minute (but it dont crash, nor is nothing visible in syslog).
>
> I think this wasn't before approx. the 3.2 kernel, at least I didn't
> perceive it, but this happens at 3.3 and 3.4-rc2-inclusive all patchs.
>
> Below, ps alx and top i printed in a file at an ocasion as this happened
> I observed that then always kmemleak is almost at the beginning of top

I have a feeling you might enjoy things like the sysprof
tool, which can show you not only which process is using
CPU time, but also where it is spent.

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