Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753311AbYK0KaK (ORCPT ); Thu, 27 Nov 2008 05:30:10 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751225AbYK0K34 (ORCPT ); Thu, 27 Nov 2008 05:29:56 -0500 Received: from www.tglx.de ([62.245.132.106]:39990 "EHLO www.tglx.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751045AbYK0K3z (ORCPT ); Thu, 27 Nov 2008 05:29:55 -0500 Date: Thu, 27 Nov 2008 11:29:10 +0100 (CET) From: Thomas Gleixner To: eranian@gmail.com cc: Andi Kleen , linux-kernel@vger.kernel.org, akpm@linux-foundation.org, mingo@elte.hu, x86@kernel.org, sfr@canb.auug.org.au Subject: Re: [patch 05/24] perfmon: X86 generic code (x86) In-Reply-To: <7c86c4470811270209q18d4e83aq8901837159838cc4@mail.gmail.com> Message-ID: References: <492d0be1.09cc660a.0b75.44b7@mx.google.com> <20081126140054.GX6703@one.firstfloor.org> <20081127100602.GF6703@one.firstfloor.org> <7c86c4470811270209q18d4e83aq8901837159838cc4@mail.gmail.com> User-Agent: Alpine 2.00 (LFD 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 876 Lines: 23 On Thu, 27 Nov 2008, stephane eranian wrote: > > Lockless buffers are nasty, but it works in oprofile at least. > > > > Taking out NMis in the first version at least seems like a reasonable > > solution. After all you can still use standard oprofile where they work > > just fine. > > > The only reason why I have to deal with NMI is not so much to allow > for profiling irq-off regions but because I have to share the PMU with > the NMI watchdog. Otherwise I'd have to fail or disable the NMI watchdog > on the fly. We can limit the functionality here. Fail or disable the NMI watchdog are both valid solutions. Thanks, tglx -- 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/