From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261460AbTKXW05 (ORCPT ); Mon, 24 Nov 2003 17:26:57 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261464AbTKXW04 (ORCPT ); Mon, 24 Nov 2003 17:26:56 -0500 Received: from web40910.mail.yahoo.com ([66.218.78.207]:29505 "HELO web40910.mail.yahoo.com") by vger.kernel.org with SMTP id S261460AbTKXW0y (ORCPT ); Mon, 24 Nov 2003 17:26:54 -0500 Message-ID: <20031124222652.16351.qmail@web40910.mail.yahoo.com> Date: Mon, 24 Nov 2003 14:26:52 -0800 (PST) From: Bradley Chapman Subject: Re: What exactly are the issues with 2.6.0-test10 preempt? To: Linus Torvalds Cc: linux-kernel@vger.kernel.org In-Reply-To: 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 Mr. Torvalds, --- 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. What sort of information would you like me to provide, sir? The bug you're discussing here isn't affecting me; CONFIG_PREEMPT has been solid on 2.6.0-test10. This is on a Gateway 600S laptop with a P4-M 2Ghz processor and an i845 Brookdale chipset. > > Linus Brad ===== __________________________________ Do you Yahoo!? Free Pop-Up Blocker - Get it now http://companion.yahoo.com/