Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759112Ab0KPUFU (ORCPT ); Tue, 16 Nov 2010 15:05:20 -0500 Received: from mail.windriver.com ([147.11.1.11]:49938 "EHLO mail.windriver.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758681Ab0KPUFQ (ORCPT ); Tue, 16 Nov 2010 15:05:16 -0500 Message-ID: <4CE2E3C3.6060800@windriver.com> Date: Tue, 16 Nov 2010 14:04:19 -0600 From: Jason Wessel User-Agent: Thunderbird 2.0.0.24 (X11/20101027) MIME-Version: 1.0 To: Don Zickus CC: Ingo Molnar , Peter Zijlstra , Robert Richter , ying.huang@intel.com, Andi Kleen , LKML , Frederic Weisbecker Subject: Re: [V2 PATCH 0/6] x86, NMI: give NMI handler a face-lift References: <1289573033-2889-1-git-send-email-dzickus@redhat.com> <4CDD579F.80009@windriver.com> <20101112154231.GN4823@redhat.com> <4CDD6389.2080206@windriver.com> <20101112161144.GP4823@redhat.com> <4CDD6CAD.30303@windriver.com> <20101112172755.GR4823@redhat.com> <20101116184325.GB4823@redhat.com> In-Reply-To: <20101116184325.GB4823@redhat.com> Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 16 Nov 2010 20:04:20.0589 (UTC) FILETIME=[74DF19D0:01CB85C9] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1060 Lines: 31 On 11/16/2010 12:43 PM, Don Zickus wrote: > On Fri, Nov 12, 2010 at 12:27:55PM -0500, Don Zickus wrote: > > Hi Jason, > > >>> I tested 2.6.35 and it does not hard hang, but suffered from a different >>> problem with a perf API change. The kgdb tests appear to loop and loop >>> emitting endless streams of output in 2.6.35 and I already have that >>> problem patched. >>> > > I keep getting the following stack trace which is different than your > hang. Is this looping I am seeing something with the NMI or kgdb? > > That was also a regression due to changes in the perf API for which I have a patch pending. I can send you the patch which Frederic has already tested OR you can turn off CONFIG_DEBUG_RODATA in the kernel config, which is the source of that particular problem. Thanks, Jason. -- 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/