From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262528AbVGMADg (ORCPT ); Tue, 12 Jul 2005 20:03:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262534AbVGMADg (ORCPT ); Tue, 12 Jul 2005 20:03:36 -0400 Received: from unused.mind.net ([69.9.134.98]:41880 "EHLO echo.lysdexia.org") by vger.kernel.org with ESMTP id S262528AbVGMADE (ORCPT ); Tue, 12 Jul 2005 20:03:04 -0400 Date: Tue, 12 Jul 2005 17:02:13 -0700 (PDT) From: William Weston X-X-Sender: weston@echo.lysdexia.org To: Ingo Molnar cc: "K.R. Foley" , Daniel Walker , Karsten Wiese , linux-kernel@vger.kernel.org Subject: Re: Real-Time Preemption, -RT-2.6.12-final-V0.7.50-24 In-Reply-To: <20050712160150.GA23943@elte.hu> Message-ID: References: <200507121223.10704.annabellesgarden@yahoo.de> <20050712140251.GB18296@elte.hu> <1121178339.10199.8.camel@c-67-188-6-232.hsd1.ca.comcast.net> <20050712142828.GA20798@elte.hu> <42D3D7ED.7000805@cybsft.com> <20050712160150.GA23943@elte.hu> 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 Tue, 12 Jul 2005, Ingo Molnar wrote: > * K.R. Foley wrote: > > > Is this why I have been able to boot the latest versions without the > > noapic option (and without noticeable keyboard repeat problems) or has > > it just been dumb luck? > > yes, i think it's related - the IO-APIC code is now more robust than > ever, and that's why any known-broken system would be important to > re-check. Just brought the SIS based Xeon box up on -51-28 with CONFIG_IOAPIC_FAST and without the noapic option, and all is well. On -50-43, noapic was needed to avoid the spurious interrupt and APIC error on CPU0 messages. Are there any non-SIS chipsets out there that need the sis_apic_bug checks? What about IOAPIC_POSTFLUSH? --ww