Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756905Ab0KRNRm (ORCPT ); Thu, 18 Nov 2010 08:17:42 -0500 Received: from casper.infradead.org ([85.118.1.10]:59039 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754022Ab0KRNRl convert rfc822-to-8bit (ORCPT ); Thu, 18 Nov 2010 08:17:41 -0500 Subject: Re: [V2 PATCH 0/6] x86, NMI: give NMI handler a face-lift From: Peter Zijlstra To: Jason Wessel Cc: Ingo Molnar , Don Zickus , Robert Richter , ying.huang@intel.com, Andi Kleen , LKML , Frederic Weisbecker In-Reply-To: <4CE52048.5080802@windriver.com> 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> <4CE2E3C3.6060800@windriver.com> <20101118080516.GJ32621@elte.hu> <4CE52048.5080802@windriver.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT Date: Thu, 18 Nov 2010 14:17:12 +0100 Message-ID: <1290086232.2109.1507.camel@laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.30.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 629 Lines: 15 On Thu, 2010-11-18 at 06:47 -0600, Jason Wessel wrote: > More specifically > when another subsystem injects an NMI event the perf NMI code returns > NOTIFY_STOP. Not unconditionally, right? We only do so when the previous NMI was from the PMU and nobody claimed this one (NOTIFY_STOP from DIE_NMIUNKNOWN). Or are you hitting the other one, where !handled but pmu_nmi.handled > 1 ? -- 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/