From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752549Ab0J3DsM (ORCPT ); Fri, 29 Oct 2010 23:48:12 -0400 Received: from relay3.sgi.com ([192.48.152.1]:40143 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751281Ab0J3DsK (ORCPT ); Fri, 29 Oct 2010 23:48:10 -0400 Date: Fri, 29 Oct 2010 22:48:04 -0500 From: Russ Anderson To: Yinghai Lu Cc: Suresh Siddha , "linux-kernel@vger.kernel.org" , Thomas Gleixner , Ingo Molnar , David Woodhouse , Jesse Barnes , rja@americas.sgi.com Subject: Re: [BUG] intr_remap: Simplify the code further Message-ID: <20101030034804.GC9557@sgi.com> Reply-To: Russ Anderson References: <20101029222227.GJ32456@sgi.com> <1288399062.2690.169.camel@sbsiddha-MOBL3.sc.intel.com> <20101030015050.GA9557@sgi.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.4.2.2i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Oct 29, 2010 at 07:55:49PM -0700, Yinghai Lu wrote: > On Fri, Oct 29, 2010 at 6:50 PM, Russ Anderson wrote: > > On Fri, Oct 29, 2010 at 05:37:42PM -0700, Suresh Siddha wrote: > >> On Fri, 2010-10-29 at 15:22 -0700, Russ Anderson wrote: > >> > There is a regression that is causing a NULL pointer dereference > >> > in free_irte when shutting down xpc.  git bisect narrowed it down > >> > to git commit d585d060b42bd36f6f0b23ff327d3b91f80c7139, which > >> > changed free_irte().  Reverse applying the patch fixes the problem. > >> > > >> > >> Russ, Is this with !CONFIG_SPARSE_IRQ? > > > > > > CONFIG_SPARSE_IRQ=y > > > > can you try attached patch? That fixes it. > Yinghai Thanks! -- Russ Anderson, OS RAS/Partitioning Project Lead SGI - Silicon Graphics Inc rja@sgi.com