From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755209Ab1K3HKH (ORCPT ); Wed, 30 Nov 2011 02:10:07 -0500 Received: from mail-gx0-f174.google.com ([209.85.161.174]:34947 "EHLO mail-gx0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751457Ab1K3HKC (ORCPT ); Wed, 30 Nov 2011 02:10:02 -0500 Message-ID: <4ED5D6C5.5050704@lwfinger.net> Date: Wed, 30 Nov 2011 01:09:57 -0600 From: Larry Finger User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:8.0) Gecko/20111105 Thunderbird/8.0 MIME-Version: 1.0 To: "Srivatsa S. Bhat" CC: LKML , Borislav Petkov Subject: Re: 3.2-rc2 freezes on boot for AMD K6 - bisected to commit bcb80e53877c2045d9e52f4a71372c3fe6501f6f References: <4ED5B70F.606@lwfinger.net> <4ED5C640.8030102@linux.vnet.ibm.com> In-Reply-To: <4ED5C640.8030102@linux.vnet.ibm.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/29/2011 11:59 PM, Srivatsa S. Bhat wrote: > On 11/30/2011 10:24 AM, Larry Finger wrote: > >> I have an ancient laptop with an AMD-K6 CPU that freezes on boot with >> 3.2-rc2. The problem was bisected to commit bcb80e53877c2. >> >> The cpuinfo for this box is: >> >>>> cpu.1: cpuinfo >> ----- /proc/cpuinfo ----- >> processor : 0 >> vendor_id : AuthenticAMD >> cpu family : 5 >> model : 8 >> model name : AMD-K6(tm) 3D processor >> stepping : 12 >> cpu MHz : 428.804 >> cache size : 64 KB >> fdiv_bug : no >> hlt_bug : no >> f00f_bug : no >> coma_bug : no >> fpu : yes >> fpu_exception : yes >> cpuid level : 1 >> wp : yes >> flags : fpu vme de pse tsc msr cx8 pge mmx syscall 3dnow >> k6_mtrr up >> bogomips : 857.60 >> clflush size : 32 >> cache_alignment : 32 >> address sizes : 32 bits physical, 32 bits virtual >> power management: >> >> ----- /proc/cpuinfo end ----- >> >> This patch is quite simple, thus it appears that rdmsr() is OK, but that >> rdmsr_safe() is not. >> >> I am happy to provide any other info regarding this box. >> > > > Hi Larry, > > Can you please try out the patch posted in > https://lkml.org/lkml/2011/11/28/178 ? > > This patch will be available in mainline kernel from -rc4. > https://lkml.org/lkml/2011/11/28/457 Srivatsa, Thanks for the reference. That patch does fix my problem. Too bad that the bad commit was not in the subject of that other thread so that I could have found it with Google. Larry