Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161947AbWKPHEv (ORCPT ); Thu, 16 Nov 2006 02:04:51 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161948AbWKPHEv (ORCPT ); Thu, 16 Nov 2006 02:04:51 -0500 Received: from ns2.suse.de ([195.135.220.15]:34277 "EHLO mx2.suse.de") by vger.kernel.org with ESMTP id S1161947AbWKPHEu (ORCPT ); Thu, 16 Nov 2006 02:04:50 -0500 From: Andi Kleen To: Andrew Morton Subject: Re: [discuss] Re: 2.6.19-rc5: known regressions (v3) Date: Thu, 16 Nov 2006 08:04:31 +0100 User-Agent: KMail/1.9.5 Cc: Linus Torvalds , discuss@x86-64.org, William Cohen , Eric Dumazet , Komuro , Ernst Herzberg , Andre Noll , oprofile-list@lists.sourceforge.net, Jens Axboe , linux-usb-devel@lists.sourceforge.net, phil.el@wanadoo.fr, Adrian Bunk , Ingo Molnar , Alan Stern , linux-pci@atrey.karlin.mff.cuni.cz, Stephen Hemminger , Prakash Punnoor , Len Brown , Alex Romosan , gregkh@suse.de, Linux Kernel Mailing List , "Eric W. Biederman" , Andrey Borzenkov References: <20061116032109.GG9579@bingen.suse.de> <20061115210501.feaf230c.akpm@osdl.org> In-Reply-To: <20061115210501.feaf230c.akpm@osdl.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200611160804.31806.ak@suse.de> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1283 Lines: 43 On Thursday 16 November 2006 06:05, Andrew Morton wrote: > On Thu, 16 Nov 2006 04:21:09 +0100 > Andi Kleen wrote: > > > > > > > If it's really true that oprofile is simply busted then that's a serious > > > problem and we should find some way of unbusting it. If that means just > > > adding a dummy "0" entry which always returns zero or something like that, > > > then fine. > > > > That could be probably done. > > I'm told that this is exactly what it was doing before it got changed. Hmm, ok perhaps that can be arranged again. The trouble is that I want to use this performance counter for other purposes too, so we would run into trouble again if oprofile keeps stealing it. > > > But we can't just go and bust it. > > > > It just did something unbelievable broken before. > > What did it do? Silently kill the nmi watchdog. > > > I would say it busted > > itself. > > It gave profiles, which was fairly handy. I'm sure it can be fixed there. Ok ok I keep sounding like a sysfs maintainer now @) -Andi - 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/