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Date: Sat, 16 Feb 2002 11:29:38 +0200 (SAST)
From: Zwane Mwaikambo <zwane@linux.realnet.co.sz>
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To: Mike Fedyk <mfedyk@matchmail.com>
Cc: Robert Love <rml@tech9.net>, Robert Jameson <rj@open-net.org>,
        <linux-kernel@vger.kernel.org>
Subject: Re: Hard lockup with 2.4.18-pre9 + preempt + lock break + O1k[23]
 + rmap
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On Fri, 15 Feb 2002, Mike Fedyk wrote:

> I don't use USB, and I have had several machines lock up hard while doing
> medium to heavy IO.  I've had this happen with pre9-mjc2 and another patch
> that just contained pre9-preempt-schedo1
> (nyu.dyn.dhs.org:8080/patches/2.4.18-pre9-to-rmap12e-schedO1-rml.patch.bz2)
> 
> I'm running 2.4.18-pre9-ac3 now to see if I can reproduce without prempt and
> O(1).

I run the same configuration here but UP, with quite a bit of I/O, box 
NFS exports a large build directory to 2 other boxes plus usually has 2 
builds going locally as well as being used as a storage area for 
creating isos/burning cds. VM load is medium for a 512mem/512swap box, 
~140 processes and ~150megs into swap.

Cheers,
	Zwane Mwaikambo



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