Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751259AbWCBBKU (ORCPT ); Wed, 1 Mar 2006 20:10:20 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751248AbWCBBKU (ORCPT ); Wed, 1 Mar 2006 20:10:20 -0500 Received: from mx1.redhat.com ([66.187.233.31]:5562 "EHLO mx1.redhat.com") by vger.kernel.org with ESMTP id S1750799AbWCBBKT (ORCPT ); Wed, 1 Mar 2006 20:10:19 -0500 Date: Wed, 1 Mar 2006 20:09:53 -0500 From: Dave Jones To: Chuck Ebbert <76306.1226@compuserve.com> Cc: linux-kernel , linux-acpi , Andi Kleen Subject: Re: 2.6.16rc5 'found' an extra CPU. Message-ID: <20060302010953.GA19755@redhat.com> Mail-Followup-To: Dave Jones , Chuck Ebbert <76306.1226@compuserve.com>, linux-kernel , linux-acpi , Andi Kleen References: <200603011957_MC3-1-B99B-8FFE@compuserve.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200603011957_MC3-1-B99B-8FFE@compuserve.com> User-Agent: Mutt/1.4.2.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1032 Lines: 26 On Wed, Mar 01, 2006 at 07:55:25PM -0500, Chuck Ebbert wrote: > In-Reply-To: <20060301230317.GF1440@redhat.com> > > On Wed, 1 Mar 2006 18:03:17, Dave Jones wrote: > > > (17:59:38:davej@nemesis:~)$ cat /sys/devices/system/cpu/cpu0/topology/core_siblings > > 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001 > > (17:59:47:davej@nemesis:~)$ cat /sys/devices/system/cpu/cpu1/topology/core_siblings > > 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000002 > > > > Neither of these CPUs are HT / dual-core, so shouldn't these be the same ? > > Those are bitmaps. 1 => only bit 0 is set => CPU 0 is all alone. > > Did you really build a 256-CPU SMP kernel or is ACPI ignoring CONFIG_NR_CPUS > or something? Yes, it's =256. Dave - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/