Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751028AbWCBA5q (ORCPT ); Wed, 1 Mar 2006 19:57:46 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751218AbWCBA5q (ORCPT ); Wed, 1 Mar 2006 19:57:46 -0500 Received: from liaag2ag.mx.compuserve.com ([149.174.40.158]:4789 "EHLO liaag2ag.mx.compuserve.com") by vger.kernel.org with ESMTP id S1750981AbWCBA5p (ORCPT ); Wed, 1 Mar 2006 19:57:45 -0500 Date: Wed, 1 Mar 2006 19:55:25 -0500 From: Chuck Ebbert <76306.1226@compuserve.com> Subject: Re: 2.6.16rc5 'found' an extra CPU. To: Dave Jones Cc: linux-kernel , linux-acpi , Andi Kleen Message-ID: <200603011957_MC3-1-B99B-8FFE@compuserve.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 961 Lines: 26 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? -- Chuck "The sleet in Crete falls neatly in the street." - 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/