From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262820AbVGHTio (ORCPT ); Fri, 8 Jul 2005 15:38:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262790AbVGHTfk (ORCPT ); Fri, 8 Jul 2005 15:35:40 -0400 Received: from mx2.elte.hu ([157.181.151.9]:48293 "EHLO mx2.elte.hu") by vger.kernel.org with ESMTP id S262814AbVGHTeu (ORCPT ); Fri, 8 Jul 2005 15:34:50 -0400 Date: Fri, 8 Jul 2005 21:34:55 +0200 From: Ingo Molnar To: Alistair John Strachan Cc: linux-kernel@vger.kernel.org Subject: Re: Realtime Preemption, 2.6.12, Beginners Guide? Message-ID: <20050708193455.GA10710@elte.hu> References: <200507061257.36738.s0348365@sms.ed.ac.uk> <200507081047.07643.s0348365@sms.ed.ac.uk> <20050708114642.GA10379@elte.hu> <200507081938.27815.s0348365@sms.ed.ac.uk> <20050708193151.GA10210@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050708193151.GA10210@elte.hu> User-Agent: Mutt/1.4.2.1i X-ELTE-SpamVersion: MailScanner 4.31.6-itk1 (ELTE 1.2) SpamAssassin 2.63 ClamAV 0.73 X-ELTE-VirusStatus: clean X-ELTE-SpamCheck: no X-ELTE-SpamCheck-Details: score=-4.9, required 5.9, autolearn=not spam, BAYES_00 -4.90 X-ELTE-SpamLevel: X-ELTE-SpamScore: -4 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org * Ingo Molnar wrote: > * Alistair John Strachan wrote: > > > Unfortunately I see nothing like this when the machine crashes. Find > > attached my config, which has CONFIG_4KSTACKS and the options you > > specified. Are you sure this is sufficient to enable it? > > another thing - if you disable 4K stacks, which doesnt crash, and do > the workload that crashes 4K stacks, do you get any stack-footprint > maximum printouts from openvpn (or related) contexts? and yet another guess: if this is related to interrupts then disabling UP_IOAPIC could change the characteristics of the crash. Ingo