Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752679Ab0HGBWX (ORCPT ); Fri, 6 Aug 2010 21:22:23 -0400 Received: from terminus.zytor.com ([198.137.202.10]:50028 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752082Ab0HGBWT (ORCPT ); Fri, 6 Aug 2010 21:22:19 -0400 Message-ID: <4C5CB52A.9080102@zytor.com> Date: Fri, 06 Aug 2010 18:21:46 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.7) Gecko/20100720 Fedora/3.1.1-1.fc13 Thunderbird/3.1.1 MIME-Version: 1.0 To: "Eric W. Biederman" CC: Yinghai Lu , mingo@redhat.com, linux-kernel@vger.kernel.org, tvrtko.ursulin@sophos.com, hilld@binarystorm.net, tglx@linutronix.de, hpa@linux.intel.com, linux-tip-commits@vger.kernel.org Subject: Re: [tip:x86/urgent] x86, apic: Map the local apic when parsing the MP table. References: <4C5CA3E4.1080908@kernel.org> <4C5CA5AC.3060608@zytor.com> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 893 Lines: 27 On 08/06/2010 06:08 PM, Eric W. Biederman wrote: >> >> I'm not sure the above is decipherable. Please provide an incremental >> patch with a more detailed description. > > YH was saying I overoptimized, and it looks like he is right, > although there are only one or two machines in existence that > are likely to be affected. > > Untested patch to remove the cleverness below. It it boots all > is well. > This makes sense to me. Yinghai, do you have a system that is actually affected, and if so, could you test this patch? -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf. -- 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/