From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265944AbUBCIyz (ORCPT ); Tue, 3 Feb 2004 03:54:55 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265954AbUBCIyz (ORCPT ); Tue, 3 Feb 2004 03:54:55 -0500 Received: from lindsey.linux-systeme.com ([62.241.33.80]:51721 "EHLO mx00.linux-systeme.com") by vger.kernel.org with ESMTP id S265944AbUBCIy1 (ORCPT ); Tue, 3 Feb 2004 03:54:27 -0500 From: Marc-Christian Petersen Organization: Working Overloaded Linux Kernel To: linux-kernel@vger.kernel.org Subject: Re: broken maxcpus in 2.4.24 Date: Tue, 3 Feb 2004 09:53:30 +0100 User-Agent: KMail/1.5.4 References: <1075765034.17943.79.camel@reactor.us.proofpoint.com> In-Reply-To: <1075765034.17943.79.camel@reactor.us.proofpoint.com> Cc: Dan Christian X-Operating-System: Linux 2.4.20-wolk4.10s i686 GNU/Linux MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200402030953.30429@WOLK> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tuesday 03 February 2004 00:37, Dan Christian wrote: Hi Dan, > I compiled a vanilla 2.4.24 for a 2 processor Xeon. > I set CONFIG_NR_CPUS to 4 (2 CPUs x 2 hyperthreads each). > When I boot the kernel, /proc/cpuinfo only shows 2 cpus (0-1) and > performance is bad. > I reconfigure CONFIG_NR_CPUS back to 32. Now it shows 4 cpus (0-3) and > performance is normal. > Is this a bug or am misunderstanding how to set this configuration > variable? http://linux.bkbits.net:8080/linux-2.4/cset@1.1136.1.68?nav=index.html| ChangeSet@-12w ciao, Marc