From: Dave Jones <davej@suse.de>
To: "Thomas 'Dent' Mirlacher" <dent@cosy.sbg.ac.at>
Cc: Andrew Morton <akpm@zip.com.au>, Robert Love <rml@tech9.net>,
"David S. Miller" <davem@redhat.com>,
linux-kernel@vger.kernel.org
Subject: Re: [patch] CONFIG_NR_CPUS
Date: Thu, 6 Jun 2002 23:36:55 +0200 [thread overview]
Message-ID: <20020606233655.E16262@suse.de> (raw)
In-Reply-To: <3CFFBCA9.843C40F0@zip.com.au> <Pine.GSO.4.05.10206062318190.19900-100000@mausmaki.cosy.sbg.ac.at>
On Thu, Jun 06, 2002 at 11:23:11PM +0200, Thomas 'Dent' Mirlacher wrote:
> > and then go edit every SMP-capable arch's config.in/Config.help
> > files. 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.
>
> well, what you need to do is make sure smp_num_cpu <= NR_CPUS,
> otherwise the kernel will go ballistic on several places within
> the code.
*nod*, relying on the user to get it right may not be as simple
as it seems. Quite a few people were pleasantly surprised when
their 2-way P4 Xeon become a 4-way HT P4 box.
Dave
--
| Dave Jones. http://www.codemonkey.org.uk
| SuSE Labs
next prev parent reply other threads:[~2002-06-06 21:36 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-06-06 10:10 [patch] CONFIG_NR_CPUS Andrew Morton
2002-06-06 10:15 ` David S. Miller
2002-06-06 15:26 ` Robert Love
2002-06-06 17:05 ` Tom Rini
2002-06-06 17:09 ` Adam Kropelin
2002-06-06 17:52 ` Robert Love
2002-06-06 19:48 ` Andrew Morton
2002-06-06 20:55 ` Andreas Dilger
2002-06-06 21:04 ` Andrew Morton
2002-06-06 21:23 ` Thomas 'Dent' Mirlacher
2002-06-06 21:36 ` Dave Jones [this message]
2002-06-06 21:49 ` Thomas 'Dent' Mirlacher
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