From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262072AbTKYHTd (ORCPT ); Tue, 25 Nov 2003 02:19:33 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262074AbTKYHTd (ORCPT ); Tue, 25 Nov 2003 02:19:33 -0500 Received: from pop.gmx.net ([213.165.64.20]:30642 "HELO mail.gmx.net") by vger.kernel.org with SMTP id S262072AbTKYHTc (ORCPT ); Tue, 25 Nov 2003 02:19:32 -0500 X-Authenticated: #20450766 Date: Tue, 25 Nov 2003 08:17:21 +0100 (CET) From: Guennadi Liakhovetski To: Linus Torvalds cc: Bradley Chapman , Subject: Re: What exactly are the issues with 2.6.0-test10 preempt? In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 24 Nov 2003, Linus Torvalds wrote: > On Mon, 24 Nov 2003, Guennadi Liakhovetski wrote: > > > > Well, FWIW, I'm getting 100% reproducible Oopses on __boot__ by enabling > > preemption AND (almost) all kernel-hacking CONFIG_DEBUG_* options - see my > > post of 21.11.2003 with subject "[OOPS] 2.6.0-test7 + preempt + hacking". > > If required, could try to narrow it down to 1 CONFIG option. > > I'd love to have more info - I actually looked at your original report, > and it's one of those "impossible" things as far as I can tell. The low > bit of the work "pending" flag should acts as a lock on workqueues, and > serialize access to one workqueue totally - so having it show up with a > pending timer is "strange" to say the least. The only two ways to clear > the "pending" timer is by running the work-queue - either for the timer to > have gone off (for the delayed case) _or_ the timer not to have evern been > set in the first place (for the immediate case). > > So more information would be wonderful. SORRY. Please, inore this report. It IS 100% reproducable - if you load wrong (compiled without debugging) modules... Maybe you should only accept bug-reports either without modules or with CONFIG_MODVERSIONS... Really sorry for taking your time. Regards Guennadi --- Guennadi Liakhovetski