From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964821AbVHJXtK (ORCPT ); Wed, 10 Aug 2005 19:49:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964823AbVHJXtK (ORCPT ); Wed, 10 Aug 2005 19:49:10 -0400 Received: from 216-239-45-4.google.com ([216.239.45.4]:41682 "EHLO 216-239-45-4.google.com") by vger.kernel.org with ESMTP id S964821AbVHJXtJ (ORCPT ); Wed, 10 Aug 2005 19:49:09 -0400 Message-ID: <42FA926E.5070901@google.com> Date: Wed, 10 Aug 2005 16:49:02 -0700 From: Mike Waychison User-Agent: Mozilla Thunderbird 1.0 (X11/20050207) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Andi Kleen CC: YhLu , Peter Buckingham , linux-kernel@vger.kernel.org, "'discuss@x86-64.org'" Subject: Re: [discuss] Re: 2.6.13-rc2 with dual way dual core ck804 MB References: <3174569B9743D511922F00A0C94314230AF97867@TYANWEB> <42FA8A4B.4090408@google.com> <20050810232614.GC27628@wotan.suse.de> In-Reply-To: <20050810232614.GC27628@wotan.suse.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 Andi Kleen wrote: > On Wed, Aug 10, 2005 at 04:14:19PM -0700, Mike Waychison wrote: > >>YhLu wrote: >> >>>andi, >>> >>>please refer the patch, it will move cpu_set(, cpu_callin_map) from >>>smi_callin to start_secondary. >> >> >>This patch fixes an apparent race / lockup on our 2-way dual cores (when >>applied against 2.6.12.3). The machine was locking up after >>"Initializing CPU#2". > > > The real solution for this issue is the smp_call_function_single patch from Eric > that I reposted yesterday. Yh's patch just changed the timing slightly. > > Indeed. I had a report here that the smp_call_function_single patch wasn't fixing our problem. I just tried it myself and it appears to also fix the problem. Thanks, Mike Waychison