linux-kernel - Re: Out of memory on 3.5 kernels

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Message-ID: <505AC952.60501@broadcom.com>
Date:	Thu, 20 Sep 2012 09:44:18 +0200
From:	"Arend van Spriel" <arend@...adcom.com>
To:	"Nico Schottelius" <nico-kernel20120920@...ottelius.org>
cc:	"David Rientjes" <rientjes@...gle.com>,
	linux-kernel@...r.kernel.org,
	"Stanislaw Gruszka" <sgruszka@...hat.com>
Subject: Re: Out of memory on 3.5 kernels

On 09/20/2012 09:32 AM, Nico Schottelius wrote:
> Hey David,
>
> David Rientjes [Wed, Sep 19, 2012 at 11:54:54PM -0700]:
>> >On Thu, 20 Sep 2012, Nico Schottelius wrote:
>> >
>>> > >for some time the slab usage is quite high (~3.2 GiB) and whenever I try
>>> > >to do a backup with ccollect (which is using rsync), a lot of processes
>>> > >(like chromium) are being killed over night.
>>> > >
>> >
>> >Yeah, over 81% of your memory is consumed by slab and that doesn't shrink
>> >over the duration of the log you posted.  It would be interesting to see
>> >if there was a leak somewhere: try looking at slabtop and determining if
>> >you have a cache using an egregious amount of memory;
> I already had to reboot, because no now process was starting / only
> starting extremly slowly.
>

Hi Nico,

Being curious (and suspicious) over here. Are you doing the rsync over 
wireless interface using brcmsmac? I am currently looking at bugzilla 
#47721 (see [1]) and maybe this is related.

Gr. AvS

[1] https://bugzilla.kernel.org/show_bug.cgi?id=47721

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