From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932096Ab1DLGfw (ORCPT ); Tue, 12 Apr 2011 02:35:52 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:37538 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755123Ab1DLGfv (ORCPT ); Tue, 12 Apr 2011 02:35:51 -0400 Date: Tue, 12 Apr 2011 08:35:38 +0200 From: Ingo Molnar To: jacob pan Cc: "H. Peter Anvin" , Thomas Gleixner , LKML , Feng Tang , Alan Cox , Arjan van de Ven Subject: Re: [PATCH v2] x86/mrst: correct pin to irq mapping Message-ID: <20110412063538.GD31050@elte.hu> References: <1302286980-21139-1-git-send-email-jacob.jun.pan@linux.intel.com> <20110410060154.GA24684@elte.hu> <20110411094330.69c86910@jacob-laptop> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20110411094330.69c86910@jacob-laptop> User-Agent: Mutt/1.5.20 (2009-08-17) X-ELTE-SpamScore: -2.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-2.0 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.3.1 -2.0 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * jacob pan wrote: > Without the patch, kernel will crash during boot on Moorestown since the > secondary CPU clockevent (apbt1) will fail to request irq#1, which does not > have ioapic chip in its irq_desc[] entry. So, I would think this is an urgent > bug fix for 39. Ok, just for future reference, this information is like 10x more important than *any* of the other information you presented in various changelog versions of this patch! I do not have this hardware so i had no idea how severe the problem was in practice - whether it's cosmetic, performance related or stability related. I'll push your urgent fix to Linus via tip:x86/urgent. Thanks, Ingo