Message-ID: <3E1A16C5.87EDE35A@digeo.com>
Date: Mon, 06 Jan 2003 15:52:37 -0800
From: Andrew Morton <akpm@digeo.com>
MIME-Version: 1.0
To: Chris Wood <cwood@xmission.com>
CC: linux-kernel@vger.kernel.org
Subject: Re: 2.4.20, .text.lock.swap cpu usage? (ibm x440)
References: <3E1A12B5.4020505@xmission.com>
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Sender: linux-kernel-owner@vger.kernel.org
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Chris Wood wrote:
> 
> Due to kswapd problems in Redhat's 2.4.9 kernel, I have had to upgrade
> to the 2.4.20 kernel with the IBM Summit Patches for our IBM x440.
> ...
> 16480 total                                      0.0138
>    6383 .text.lock.swap                          110.0517
>    4689 .text.lock.vmscan                         28.2470
>    4486 shrink_cache                               4.6729
>     168 rw_swap_page_base                          0.6176
>     124 prune_icache                               0.5167

With six gigs of memory, it looks like the VM has gone nuts
trying to locate some reclaimable lowmem.

Suggest you send the contents of /proc/meminfo and /proc/slabinfo,
captured during a period of misbehaviour.

Then please apply 
http://www.kernel.org/pub/linux/kernel/people/andrea/kernels/v2.4/2.4.20aa1.bz2
and send a report on the outcome.
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