linux-kernel - Re: OOM (HighMem) on linux 2.6.24.2

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Date:	Tue, 01 Apr 2008 06:57:27 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Denys Vlasenko <vda.linux@...glemail.com>
Cc:	Kevin Shanahan <kmshanah@...b.org.au>, linux-kernel@...r.kernel.org
Subject: Re: OOM (HighMem) on linux 2.6.24.2

On Tue, 2008-04-01 at 04:31 +0200, Denys Vlasenko wrote:
> On Thursday 20 March 2008 11:04, Kevin Shanahan wrote:
> > Feb 28 06:32:20 hermes kernel: 5313 pages slab
> > Feb 28 06:32:20 hermes kernel: 2632 pages pagetables
> > Feb 28 06:32:20 hermes kernel: Out of memory: kill process 24013 (apache2) score 22070 or a child
> > Feb 28 06:32:20 hermes kernel: Killed process 24013 (apache2)
> > 
> > Looks like the HighMem low watermark was hit again (though I've no idea
> > if that's actually significant).
> 
> I kno that people routinely forget to do that, but
> at least for purely paranoid reasons you are better
> to run all daemons with setrlimit'ed memory size.
> At least all daemons which you cannot reasonably
> trust to be 100% leak-free and to have bounded
> peak memory usage.

Afaik we don't actually implement RLIMIT_RSS.

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