From: Andrew Morton <akpm@linux-foundation.org>
To: Matthias Wolle <Matthias.Wolle@gmx.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: LowFree/LowMem problem
Date: Wed, 23 Jan 2008 14:06:39 -0800 [thread overview]
Message-ID: <20080123140639.828566dd.akpm@linux-foundation.org> (raw)
In-Reply-To: <200801210632.42497.Matthias.Wolle@gmx.de>
> On Mon, 21 Jan 2008 06:32:41 +0100 Matthias Wolle <Matthias.Wolle@gmx.de> wrote:
> Hi,
>
> my company is running several servers with kernel 2.6.23.12. This are Dual
> Quad Core servers (CPU Intel) with 16GB RAM using a 32Bit kernel.
> After some days nicely running the oom killer killed our processes.
> Our research discovered that the free low memory was reduced to about 11MB. We
> found out that the decreasing of low memory is related to the count off
> executed and ended programs.
>
> I could reproduce the same bug on a maschine with 2GB RAM without PAE (option
> 4GB HIGHMEM). The following code reproduces the bug.
>
> #!/bin/sh
>
> while [ true ]; do
> cat /proc/meminfo| grep LowFree
> done
>
> Please run this script only on a test system. It reduces the low memory quite
> fast (within minutes).
That would be very strange.
> The latest available kernel 2.6.24-rc8 is also affected.
>
Can you please send the full dmesg output from one such oom-killing event?
next prev parent reply other threads:[~2008-01-23 22:06 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-21 5:32 Matthias Wolle
2008-01-23 22:06 ` Andrew Morton [this message]
2008-01-23 22:40 ` Matthias Wolle
2008-01-24 7:16 ` Andi Kleen
2008-01-25 1:45 ` Matthias Wolle
2008-01-21 16:45 Parag Warudkar
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