From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758502Ab0HDHdl (ORCPT ); Wed, 4 Aug 2010 03:33:41 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:45585 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756551Ab0HDHdj (ORCPT ); Wed, 4 Aug 2010 03:33:39 -0400 Date: Wed, 4 Aug 2010 09:33:24 +0200 From: Ingo Molnar To: "Eric W. Biederman" Cc: Yinghai Lu , Dave Airlie , Iranna D Ankad , Gary Hade , LKML , Thomas Renninger , "H. Peter Anvin" Subject: Re: oops in ioapic_write_entry Message-ID: <20100804073324.GC28183@elte.hu> References: <4C57C319.8070800@kernel.org> <4C57CD9C.70602@kernel.org> <4C57DACF.1090503@kernel.org> <4C57E32A.9070401@kernel.org> <4C5871BC.4070007@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-08-17) X-ELTE-SpamScore: -1.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.0 required=5.9 tests=BAYES_20 autolearn=no SpamAssassin version=3.2.5 -1.0 BAYES_20 BODY: Bayesian spam probability is 5 to 20% [score: 0.1098] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Eric W. Biederman wrote: > This patch definitely does not solve Dave Airlie's problem. That was > clearly caused by a (ACPI being disabled compared to the test case) and a > bad BIOS provided MP table with an invalid apic_id, and our attempt to > lookup the ioapic and failed. The kernel should not crash obviously, so that's a bug that has to be addressed - or failing any timely resolution the original patch which introduced the regression [if it's a regression] needs to be reverted. Thanks, Ingo