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Message-ID: <3CFFCE4B.F422EE7@zip.com.au>
Date: Thu, 06 Jun 2002 14:04:11 -0700
From: Andrew Morton <akpm@zip.com.au>
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To: Andreas Dilger <adilger@clusterfs.com>
CC: Robert Love <rml@tech9.net>, "David S. Miller" <davem@redhat.com>,
        linux-kernel@vger.kernel.org
Subject: Re: [patch] CONFIG_NR_CPUS
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Andreas Dilger wrote:
> 
> On Jun 06, 2002  12:48 -0700, Andrew Morton wrote:
> > But the arch maintainers should test one case please - x86
> > was locking up at boot on quad CPU with NR_CPUS=2.  Others may do
> > the same.
> 
> Just a guess, but this could be because the two CPUs chosen for the
> boot sequence are not physically numbered 0 and 1, so they are
> overwriting the bounds of the per-CPU arrays.

Well the code was assuming that the number of physical
CPUs was always <= NR_CPUS unless max_cpus had been
specified.  I fixed that in the patch.

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