Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262254AbUKKPfo (ORCPT ); Thu, 11 Nov 2004 10:35:44 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262258AbUKKPar (ORCPT ); Thu, 11 Nov 2004 10:30:47 -0500 Received: from mx1.elte.hu ([157.181.1.137]:46990 "EHLO mx1.elte.hu") by vger.kernel.org with ESMTP id S262254AbUKKP3X (ORCPT ); Thu, 11 Nov 2004 10:29:23 -0500 Date: Thu, 11 Nov 2004 17:30:30 +0100 From: Ingo Molnar To: Gunther Persoons Cc: linux-kernel@vger.kernel.org Subject: Re: [patch] Real-Time Preemption, -RT-2.6.10-rc1-mm3-V0.7.25-0 Message-ID: <20041111163030.GA27769@elte.hu> References: <20041027001542.GA29295@elte.hu> <20041103105840.GA3992@elte.hu> <20041106155720.GA14950@elte.hu> <20041108091619.GA9897@elte.hu> <20041108165718.GA7741@elte.hu> <20041109160544.GA28242@elte.hu> <20041111144414.GA8881@elte.hu> <41938D60.4070802@spymac.com> <20041111160819.GA26184@elte.hu> <20041111161235.GA26582@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20041111161235.GA26582@elte.hu> User-Agent: Mutt/1.4.1i 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 Content-Length: 823 Lines: 24 * Ingo Molnar wrote: > just in case you are using UP-IOAPIC, could you enable CONFIG_SMP > (even if you are running an UP box) and see whether the lockup goes > away? Which was the last -RT kernel that you tried that didnt lock up > in this fashion? if with CONFIG_SMP it's more stable, could you try the following: turn off CONFIG_SMP again and edit arch/i386/kernel/io_apic.c and remove this string: && defined(CONFIG_SMP) (there should be only one occurence of this string.) this will turn the previous IO-APIC logic (used in -V0.7.24) back on. Ingo - 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/