From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751145AbWFBGCl (ORCPT ); Fri, 2 Jun 2006 02:02:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751152AbWFBGCl (ORCPT ); Fri, 2 Jun 2006 02:02:41 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:54443 "EHLO mx3.mail.elte.hu") by vger.kernel.org with ESMTP id S1751145AbWFBGCk (ORCPT ); Fri, 2 Jun 2006 02:02:40 -0400 Date: Fri, 2 Jun 2006 08:02:58 +0200 From: Ingo Molnar To: Andrew Morton Cc: "Barry K. Nathan" , linux-kernel@vger.kernel.org, Arjan van de Ven Subject: Re: 2.6.17-rc5-mm2 Message-ID: <20060602060258.GA7525@elte.hu> References: <20060601014806.e86b3cc0.akpm@osdl.org> <986ed62e0606011758w348080ebn6e8430ec9e5b2ed3@mail.gmail.com> <20060601183836.d318950e.akpm@osdl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060601183836.d318950e.akpm@osdl.org> User-Agent: Mutt/1.4.2.1i X-ELTE-SpamScore: 0.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=0.0 required=5.9 tests=AWL,BAYES_50 autolearn=no SpamAssassin version=3.0.3 0.0 BAYES_50 BODY: Bayesian spam probability is 40 to 60% [score: 0.5007] 0.0 AWL AWL: From: address is in the auto white-list X-ELTE-VirusStatus: clean Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org * Andrew Morton wrote: > On Thu, 1 Jun 2006 17:58:48 -0700 > "Barry K. Nathan" wrote: > > > Ok, the kernel that I now have booting is 2.6.17-rc5-mm2 + my > > pata_pdc2027x patch + the 3 hotfixes that I saw when I started trying > > to build the kernel (i.e. without git-scsi-target-fixup but with the > > other 3 that are now present). > > > > During boot of my Debian sarge system, this kernel always gives this > > warning at "Starting MTA:" > > http://static.flickr.com/47/158326090_35d0129147_b_d.jpg > > That's the mysterious lockdep warning - I'm not sure we've got to the > bottom of that. Barry, if the system boots up fine with LLC disabled (and if you still get the lockdep warning), then please apply the following patch: http://redhat.com/~mingo/lockdep-patches/latency-tracing-lockdep.patch accept all the default 'make oldconfig' options and reboot into the patched kernel. If everything goes well then the system should still boot up fine, you should still get the lockdep warning - but this time there should be a long trace in /proc/latency_trace. Please upload that trace - it gives us the kernel's function trace, leading up to the warning. Ingo