From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751267AbWCFUWp (ORCPT ); Mon, 6 Mar 2006 15:22:45 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751445AbWCFUWp (ORCPT ); Mon, 6 Mar 2006 15:22:45 -0500 Received: from prgy-npn2.prodigy.com ([207.115.54.38]:19550 "EHLO oddball.prodigy.com") by vger.kernel.org with ESMTP id S1751267AbWCFUWo (ORCPT ); Mon, 6 Mar 2006 15:22:44 -0500 Message-ID: <440C9A55.30201@tmr.com> Date: Mon, 06 Mar 2006 15:23:49 -0500 From: Bill Davidsen User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.0.1) Gecko/20060130 SeaMonkey/1.0 MIME-Version: 1.0 To: jensmh@gmx.de, Linux Kernel Mailing List Subject: Re: 2.6.16-rc5 'lost' cpu References: <200603020505.13108.jensmh@gmx.de> In-Reply-To: <200603020505.13108.jensmh@gmx.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org jensmh@gmx.de wrote: > This is a dual xeon system with hyper threading enabled, so there should > be 4 cpus It decided that the first CPU had only one sibling, sounds like an ACPI issue, if I had to place a bet I would lean to the hardware/BIOS not admitting to that 2nd sibling. > > jm@voyager ~ $ ll /proc/acpi/processor/ > total 0 > dr-xr-xr-x 2 root root 0 Mar 2 05:01 CPU0 > dr-xr-xr-x 2 root root 0 Mar 2 05:01 CPU1 > dr-xr-xr-x 2 root root 0 Mar 2 05:01 CPU3 > > jm@voyager ~ $ cat /proc/cpuinfo > processor : 0 > vendor_id : GenuineIntel > cpu family : 15 > model : 2 > model name : Intel(R) Xeon(TM) CPU 2.80GHz > stepping : 9 > cpu MHz : 2792.148 > cache size : 512 KB > physical id : 0 > siblings : 1 > core id : 0 > cpu cores : 1 > fdiv_bug : no > hlt_bug : no > f00f_bug : no > coma_bug : no > fpu : yes > fpu_exception : yes > cpuid level : 2 > wp : yes > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid xtpr > bogomips : 5588.74 > > processor : 1 > vendor_id : GenuineIntel > cpu family : 15 > model : 2 > model name : Intel(R) Xeon(TM) CPU 2.80GHz > stepping : 9 > cpu MHz : 2799.930 > cache size : 512 KB > physical id : 3 > siblings : 2 > core id : 0 > cpu cores : 1 > fdiv_bug : no > hlt_bug : no > f00f_bug : no > coma_bug : no > fpu : yes > fpu_exception : yes > cpuid level : 2 > wp : yes > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid xtpr > bogomips : 5581.39 > > processor : 2 > vendor_id : GenuineIntel > cpu family : 15 > model : 2 > model name : Intel(R) Xeon(TM) CPU 2.80GHz > stepping : 9 > cpu MHz : 2799.930 > cache size : 512 KB > physical id : 3 > siblings : 2 > core id : 0 > cpu cores : 1 > fdiv_bug : no > hlt_bug : no > f00f_bug : no > coma_bug : no > fpu : yes > fpu_exception : yes > cpuid level : 2 > wp : yes > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid xtpr > bogomips : 5581.34 -- -bill davidsen (davidsen@tmr.com) "The secret to procrastination is to put things off until the last possible moment - but no longer" -me