Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751238AbWCBAxy (ORCPT ); Wed, 1 Mar 2006 19:53:54 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751028AbWCBAxy (ORCPT ); Wed, 1 Mar 2006 19:53:54 -0500 Received: from ns1.suse.de ([195.135.220.2]:46480 "EHLO mx1.suse.de") by vger.kernel.org with ESMTP id S1750799AbWCBAxx (ORCPT ); Wed, 1 Mar 2006 19:53:53 -0500 From: Andi Kleen To: Dave Jones Subject: Re: 2.6.16rc5 'found' an extra CPU. Date: Thu, 2 Mar 2006 01:55:46 +0100 User-Agent: KMail/1.9.1 Cc: linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, Ashok Raj References: <20060301224647.GD1440@redhat.com> <20060301230317.GF1440@redhat.com> In-Reply-To: <20060301230317.GF1440@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200603020155.46534.ak@suse.de> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1495 Lines: 41 On Thursday 02 March 2006 00:03, Dave Jones wrote: > On Wed, Mar 01, 2006 at 05:46:47PM -0500, Dave Jones wrote: > > This amused me. > > > > (17:43:34:davej@nemesis:~)$ ll /proc/acpi/processor/ > > total 0 > > dr-xr-xr-x 2 root root 0 Mar 1 17:43 CPU1/ > > dr-xr-xr-x 2 root root 0 Mar 1 17:43 CPU2/ > > dr-xr-xr-x 2 root root 0 Mar 1 17:43 CPU3/ > > (17:43:36:davej@nemesis:~)$ > > Digging further. I notice more oddities (or maybe I've just > misunderstood this -- corrections welcomed) Probably related to Ashok's ACPI CPU hotplug patches. What's the full bootup log? > (17:59:02:davej@nemesis:~)$ cat > /sys/devices/system/cpu/cpu0/topology/core_id 0 > (17:59:23:davej@nemesis:~)$ cat > /sys/devices/system/cpu/cpu1/topology/core_id 0 > > (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 ? It looks like a standard dual socket machine. Each CPU is a sibling of its own only. -Andi - 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/