Date: Wed, 19 Dec 2007 06:55:50 +0100
From: Nico Schottelius <nico-kernel-20071219@schottelius.org>
To: Robert Hancock <hancockr@shaw.ca>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: Out of memory and no killable processes: 2.6.22-2-686-bigmem
Message-ID: <20071219055550.GE21042@denkbrett.schottelius.org>
Mail-Followup-To: Nico Schottelius <nico-kernel-20071219@schottelius.org>,
	Robert Hancock <hancockr@shaw.ca>,
	LKML <linux-kernel@vger.kernel.org>
References: <fa.oSel00y9Hn5hvV3laxPiw9blEfU@ifi.uio.no> <4768692A.3030204@shaw.ca>
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Hello Robert,

Robert Hancock [Tue, Dec 18, 2007 at 06:43:22PM -0600]:
> How much RAM is in these machines?

8 GiB

> If you're running tons of memory, it=20
> really is better to run a 64-bit kernel if possible.

Sure? Afaik that results in a bit slower access to memory and appart
=66rom being able to address MUCH more memory doesn't change the
situation.

Perhaps I missed something.

And updating to 64 Bit kernel also implies changing the userland, so
a reinstall would be necessary, wouldn't it?

> I believe there are=20
> some cases where low memory can be pretty easily exhausted on machines wi=
th=20
> lots of high memory.

Some minutes ago the third machine of that type freezed.
with 7 GiB of *free* memory, before getting oom+panic.

The thing that looks pretty the same is that the inode table / open
inodes shrinked very heavy from 41k to about 2k before the freeze
in about 3 days.

Same kernel, same Dell 1955 hardware, different machine.

Is it possible to debug this issue somehow?

Nico

--=20
Think about Free and Open Source Software (FOSS).
http://nico.schottelius.org/documentations/foss/the-term-foss/

PGP: BFE4 C736 ABE5 406F 8F42  F7CF B8BE F92A 9885 188C

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