Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760930AbYJJPk1 (ORCPT ); Fri, 10 Oct 2008 11:40:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758596AbYJJPkM (ORCPT ); Fri, 10 Oct 2008 11:40:12 -0400 Received: from mx2.redhat.com ([66.187.237.31]:60336 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758135AbYJJPkK (ORCPT ); Fri, 10 Oct 2008 11:40:10 -0400 Date: Fri, 10 Oct 2008 11:39:38 -0400 From: Dave Jones To: Nick Piggin Cc: "Rafael J. Wysocki" , Linux Kernel Mailing List , Kernel Testers List Subject: Re: [Bug #11224] Only three cores found on quad-core machine. Message-ID: <20081010153938.GC12937@redhat.com> Mail-Followup-To: Dave Jones , Nick Piggin , "Rafael J. Wysocki" , Linux Kernel Mailing List , Kernel Testers List References: <0pOgGB.A.uLG.E475IB@wind> <200810080218.18898.nickpiggin@yahoo.com.au> <20081007153203.GB3337@redhat.com> <200810081524.40614.nickpiggin@yahoo.com.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200810081524.40614.nickpiggin@yahoo.com.au> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2175 Lines: 48 On Wed, Oct 08, 2008 at 03:24:40PM +1100, Nick Piggin wrote: > On Wednesday 08 October 2008 02:32, Dave Jones wrote: > > On Wed, Oct 08, 2008 at 02:18:18AM +1100, Nick Piggin wrote: > > > On Sunday 05 October 2008 04:32, Rafael J. Wysocki wrote: > > > > This message has been generated automatically as a part of a report > > > > of recent regressions. > > > > > > > > The following bug entry is on the current list of known regressions > > > > from 2.6.26. Please verify if it still should be listed and let me > > > > know (either way). > > > > > > > > > > > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11224 > > > > Subject : Only three cores found on quad-core machine. > > > > Submitter : Dave Jones > > > > Date : 2008-08-01 18:15 (65 days old) > > > > References : http://marc.info/?l=linux-kernel&m=121761475224719&w=4 > > > > > > Dave, is your CPU2 getting stuck in calibrate_delay? Can you still > > > reproduce the bug? What if you boot the kernel with lpj= > > like 2666785> in order to skip the calibrate_delay code? > > > > > > If that helps, can you try adding some printks to narrow down where it > > > is getting stuck? > > > > This is going to sound strange, but I've forgotten which box that was. > > I'm due to reinstall all my test boxes now that the next Fedora beta > > has come out anyway, so I'll hopefully figure out by the end of the week :) > > That does sound strange ;) But I can't believe that! It would be really > interesting if it was stuck in calibrate_delay, but maybe the backtrace > is just messed up... > > If you do manage to reproduce it, I would be quite interested. Otherwise, > I think we can say it's not a showstopper for 2.6.27. Ok, this can be closed out. 2.6.27 seems to work fine on all the quad core machines I have in my cube. Dave -- http://www.codemonkey.org.uk -- 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/