[cliffw@osdl.org: Re: 2.6.10-ac12 + kernbench == oom-killer: (OSDL)]

[cliffw@osdl.org: Re: 2.6.10-ac12 + kernbench == oom-killer: (OSDL)]

[Marcelo Tosatti]

FYI 

----- Forwarded message from cliff white <cliffw@osdl.org> -----

From: cliff white <cliffw@osdl.org>
Date: Thu, 17 Feb 2005 12:49:16 -0800
To: Marcelo Tosatti <marcelo.tosatti@cyclades.com>
Cc: linux-kernel@vger.kernel.org, alan@lxorguk.ukuu.org.uk
Subject: Re: 2.6.10-ac12 + kernbench ==  oom-killer: (OSDL)

On Wed, 9 Feb 2005 10:12:06 -0200
Marcelo Tosatti <marcelo.tosatti@cyclades.com> wrote:

> On Tue, Feb 08, 2005 at 02:57:07PM -0800, cliff white wrote:
> > 
> > Running 2.6.10-ac10 on the STP 1-CPU machines, we don't seem to be able to complete
> > a kernbench run without hitting the OOM-killer. ( kernbench is multiple kernel compiles,
> > of course ) Machine is 800 mhz PIII with 1GB memory. We reduce memory for some of the runs.
> 
> Cliff, 
> 
> Please try recent v2.6.11-rc3, they include a series of OOM killer fixes from Andrea et all.
> 

Sorry for the delay in response. Recent -bk runs still show this problem, for example:
http://khack.osdl.org/stp/300713/logs/TestRunFailed.console.log.txt
( patch-2.6.11-rc3-bk4 ) 

cliffw

> Thanks.
> 


-- 
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now at least theres a reason." -Michael Feldman

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Re: [cliffw@osdl.org: Re: 2.6.10-ac12 + kernbench == oom-killer: (OSDL)]

[Andrea Arcangeli]

On Sat, Feb 19, 2005 at 06:27:03PM -0200, Marcelo Tosatti wrote:
> 
> FYI 
> 
> ----- Forwarded message from cliff white <cliffw@osdl.org> -----
> 
> From: cliff white <cliffw@osdl.org>
> Date: Thu, 17 Feb 2005 12:49:16 -0800
> To: Marcelo Tosatti <marcelo.tosatti@cyclades.com>
> Cc: linux-kernel@vger.kernel.org, alan@lxorguk.ukuu.org.uk
> Subject: Re: 2.6.10-ac12 + kernbench ==  oom-killer: (OSDL)
> 
> On Wed, 9 Feb 2005 10:12:06 -0200
> Marcelo Tosatti <marcelo.tosatti@cyclades.com> wrote:
> 
> > On Tue, Feb 08, 2005 at 02:57:07PM -0800, cliff white wrote:
> > > 
> > > Running 2.6.10-ac10 on the STP 1-CPU machines, we don't seem to be able to complete
> > > a kernbench run without hitting the OOM-killer. ( kernbench is multiple kernel compiles,
> > > of course ) Machine is 800 mhz PIII with 1GB memory. We reduce memory for some of the runs.
> > 
> > Cliff, 
> > 
> > Please try recent v2.6.11-rc3, they include a series of OOM killer fixes from Andrea et all.
> > 
> 
> Sorry for the delay in response. Recent -bk runs still show this problem, for example:
> http://khack.osdl.org/stp/300713/logs/TestRunFailed.console.log.txt
> ( patch-2.6.11-rc3-bk4 ) 

What is the problem? It looks genuine oom.

Free swap  = 0kB

And only one task was killed (you might see two logs, but that's fine,
it's the same task 13188 that was sent a signal twice, and this is
intentional to happen sometime).

This could be one of those .c files that grows like crazy and allocates
tons of ram when you compile it (I've seen one that grows to the
gigabites).

Please let me know if I overlooked something, thanks.
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