From owner-freebsd-current@FreeBSD.ORG Thu Nov 6 09:23:11 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id B5EAA16A4CE for ; Thu, 6 Nov 2003 09:23:11 -0800 (PST) Received: from mail.speakeasy.net (mail5.speakeasy.net [216.254.0.205]) by mx1.FreeBSD.org (Postfix) with ESMTP id D466B43FE9 for ; Thu, 6 Nov 2003 09:23:09 -0800 (PST) (envelope-from jhb@FreeBSD.org) Received: (qmail 14973 invoked from network); 6 Nov 2003 17:23:09 -0000 Received: from unknown (HELO server.baldwin.cx) ([216.27.160.63]) (envelope-sender )encrypted SMTP for ; 6 Nov 2003 17:23:09 -0000 Received: from laptop.baldwin.cx (gw1.twc.weather.com [216.133.140.1]) by server.baldwin.cx (8.12.9/8.12.9) with ESMTP id hA6HMice082015; Thu, 6 Nov 2003 12:22:45 -0500 (EST) (envelope-from jhb@FreeBSD.org) Message-ID: X-Mailer: XFMail 1.5.4 on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <20031106152721.J95465@beagle.fokus.fraunhofer.de> Date: Thu, 06 Nov 2003 12:22:45 -0500 (EST) From: John Baldwin To: harti@FreeBSD.org X-Spam-Checker-Version: SpamAssassin 2.55 (1.174.2.19-2003-05-19-exp) cc: current@FreeBSD.org Subject: RE: New interrupt stuff breaks ASUS 2 CPU system X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 06 Nov 2003 17:23:11 -0000 On 06-Nov-2003 Harti Brandt wrote: > JB>I figured out what is happenning I think. You are getting a spurious > JB>interrupt from the 8259A PIC (which comes in on IRQ 7). The IRR register > JB>lists pending interrupts still waiting to be serviced. Try using > JB>'options NO_MIXED_MODE' to stop using the 8259A's for the clock and see if > JB>the spurious IRQ 7 interrupts go away. > > Ok, that seems to help. Interesting although why do these interrupts > happen only with a larger HZ and when the kernel is doing printfs (this > machine has a serial console). I have also not tried to disable SIO2 and > the parallel port. Can you also try turning mixed mode back on and using http://www.FreeBSD.org/~jhb/patches/spurious.patch You should get some stray IRQ 7's in the vmstat -i output as well as a few printf's to the kernel console. -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/