Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753754Ab2EXA63 (ORCPT ); Wed, 23 May 2012 20:58:29 -0400 Received: from mail-pz0-f46.google.com ([209.85.210.46]:49900 "EHLO mail-pz0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751171Ab2EXA61 (ORCPT ); Wed, 23 May 2012 20:58:27 -0400 Date: Wed, 23 May 2012 17:58:25 -0700 (PDT) From: David Rientjes X-X-Sender: rientjes@chino.kir.corp.google.com To: Peter Zijlstra cc: Ingo Molnar , hpa@zytor.com, linux-kernel@vger.kernel.org, Linus Torvalds , pjt@google.com, cl@linux.com, riel@redhat.com, bharata.rao@gmail.com, Andrew Morton , Lee.Schermerhorn@hp.com, aarcange@redhat.com, danms@us.ibm.com, suresh.b.siddha@intel.com, tglx@linutronix.de, linux-tip-commits@vger.kernel.org Subject: Re: [tip:sched/numa] sched/numa: Introduce sys_numa_{t,m}bind() In-Reply-To: <1337788843.9783.14.camel@laptop> Message-ID: References: <20120521084046.GB31407@gmail.com> <1337688268.9698.29.camel@twins> <1337698830.9698.37.camel@twins> <1337788843.9783.14.camel@laptop> User-Agent: Alpine 2.00 (DEB 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2639 Lines: 161 On Wed, 23 May 2012, Peter Zijlstra wrote: > On Tue, 2012-05-22 at 17:00 +0200, Peter Zijlstra wrote: > > /me goes kick his gray cells some more. > > OK, does the below make your machine happy? If not, please share the > completely topology setup of that thing (lscpu or similar). > Same divide by zero. I'd be happy to run a debugging patch if you can come up with one. $ grep -E 'processor|core|sibling|physical id|apicid|cpuid' /proc/cpuinfo | sed 's/processor/\nprocessor/' processor : 0 physical id : 0 siblings : 4 core id : 0 cpu cores : 4 apicid : 4 initial apicid : 0 cpuid level : 5 processor : 1 physical id : 0 siblings : 4 core id : 1 cpu cores : 4 apicid : 5 initial apicid : 1 cpuid level : 5 processor : 2 physical id : 0 siblings : 4 core id : 2 cpu cores : 4 apicid : 6 initial apicid : 2 cpuid level : 5 processor : 3 physical id : 0 siblings : 4 core id : 3 cpu cores : 4 apicid : 7 initial apicid : 3 cpuid level : 5 processor : 4 physical id : 1 siblings : 4 core id : 0 cpu cores : 4 apicid : 8 initial apicid : 4 cpuid level : 5 processor : 5 physical id : 1 siblings : 4 core id : 1 cpu cores : 4 apicid : 9 initial apicid : 5 cpuid level : 5 processor : 6 physical id : 1 siblings : 4 core id : 2 cpu cores : 4 apicid : 10 initial apicid : 6 cpuid level : 5 processor : 7 physical id : 1 siblings : 4 core id : 3 cpu cores : 4 apicid : 11 initial apicid : 7 cpuid level : 5 processor : 8 physical id : 2 siblings : 4 core id : 0 cpu cores : 4 apicid : 12 initial apicid : 8 cpuid level : 5 processor : 9 physical id : 2 siblings : 4 core id : 1 cpu cores : 4 apicid : 13 initial apicid : 9 cpuid level : 5 processor : 10 physical id : 2 siblings : 4 core id : 2 cpu cores : 4 apicid : 14 initial apicid : 10 cpuid level : 5 processor : 11 physical id : 2 siblings : 4 core id : 3 cpu cores : 4 apicid : 15 initial apicid : 11 cpuid level : 5 processor : 12 physical id : 3 siblings : 4 core id : 0 cpu cores : 4 apicid : 16 initial apicid : 12 cpuid level : 5 processor : 13 physical id : 3 siblings : 4 core id : 1 cpu cores : 4 apicid : 17 initial apicid : 13 cpuid level : 5 processor : 14 physical id : 3 siblings : 4 core id : 2 cpu cores : 4 apicid : 18 initial apicid : 14 cpuid level : 5 processor : 15 physical id : 3 siblings : 4 core id : 3 cpu cores : 4 apicid : 19 initial apicid : 15 cpuid level : 5 -- 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/