Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752217AbXFYVGP (ORCPT ); Mon, 25 Jun 2007 17:06:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752167AbXFYVGA (ORCPT ); Mon, 25 Jun 2007 17:06:00 -0400 Received: from mail.gmx.net ([213.165.64.20]:35805 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751739AbXFYVF7 (ORCPT ); Mon, 25 Jun 2007 17:05:59 -0400 X-Authenticated: #5039886 X-Provags-ID: V01U2FsdGVkX1/yncFmDXzyMWqKgRQPehMKLGLsdrCbKunUtghshN mplS3qPVhjWzqh Date: Mon, 25 Jun 2007 23:06:47 +0200 From: =?iso-8859-1?Q?Bj=F6rn?= Steinbrink To: Andi Kleen Cc: Andrew Morton , eranian@hpl.hp.com, mingo@elte.hu, linux-kernel@vger.kernel.org, levon@movementarian.org, perfmon@napali.hpl.hp.com, oprofile-list@lists.sourceforge.net, wcohen@redhat.com Subject: Re: [PATCH 1/2] Always probe the NMI watchdog Message-ID: <20070625210647.GB15258@atjola.homenet> Mail-Followup-To: =?iso-8859-1?Q?Bj=F6rn?= Steinbrink , Andi Kleen , Andrew Morton , eranian@hpl.hp.com, mingo@elte.hu, linux-kernel@vger.kernel.org, levon@movementarian.org, perfmon@napali.hpl.hp.com, oprofile-list@lists.sourceforge.net, wcohen@redhat.com References: <20070618103214.GA12045@atjola.homenet> <20070620183448.GB3251@atjola.homenet> <20070625120926.0a86373c.akpm@linux-foundation.org> <200706252136.18366.ak@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <200706252136.18366.ak@suse.de> User-Agent: Mutt/1.5.13 (2006-08-11) X-Y-GMX-Trusted: 0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1370 Lines: 36 On 2007.06.25 21:36:17 +0200, Andi Kleen wrote: > On Monday 25 June 2007 21:09, Andrew Morton wrote: > > On Wed, 20 Jun 2007 20:34:48 +0200 > > > > Bj__rn Steinbrink wrote: > > > The performance counter allocator relies on the nmi watchdog being > > > probed, so we have to do that even if the watchdog is not enabled. > > > > So... what's the status of this lot? > > > > I've just merged this patch and the second one: > > > > Subject: [PATCH 2/2] Reserve the right performance counter for the Intel > > PerfMon NMI watchdog Message-ID: <20070620183551.GC3251@atjola.homenet> > > > > but there was no followup discussion afaict. > > > > Andi, Stephane: acks? > > Yes, although I'm still a little uneasy about the always probe one. > > > If acked, do we agree that this is 2.6.22 material? > > The first (always probe) is probably .22 material, but needs more testing > first. Hm, without the second, I expect OProfile to break when the watchdog is enabled. Alternatively to the patch I sent, we could revert the change that makes it use perfctr1 instead of perfctr0. Would you prefer that? Bj?rn - 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/