Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751416Ab3HSOq1 (ORCPT ); Mon, 19 Aug 2013 10:46:27 -0400 Received: from merlin.infradead.org ([205.233.59.134]:33673 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751158Ab3HSOqZ (ORCPT ); Mon, 19 Aug 2013 10:46:25 -0400 Date: Mon, 19 Aug 2013 16:45:57 +0200 From: Peter Zijlstra To: Stephane Eranian Cc: Jiri Olsa , Andi Kleen , LKML , Corey Ashford , Frederic Weisbecker , Paul Mackerras , Ingo Molnar , Arnaldo Carvalho de Melo Subject: Re: [PATCH 1/2] perf x86: Make intel_pmu_enable_all to enable only active events Message-ID: <20130819144557.GH24092@twins.programming.kicks-ass.net> References: <1376411952-16718-1-git-send-email-jolsa@redhat.com> <1376411952-16718-2-git-send-email-jolsa@redhat.com> <20130815114040.GR24092@twins.programming.kicks-ass.net> <20130815135314.GE19750@two.firstfloor.org> <20130819111616.GA1145@krava.brq.redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2012-12-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 645 Lines: 13 On Mon, Aug 19, 2013 at 04:31:31PM +0200, Stephane Eranian wrote: > Yeah, I think you can have one NMI pending because it came > while you were already servicing an NMI interrupt. Though, this > is very unlikely. Yeah exceedingly rare. I'm also fairly certain I've had NMIs right after clearing EN bits. Although I cannot remember if that was on Intel or AMD hardware, nor on what specific model :/ -- 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/