From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932164AbWAPCF4 (ORCPT ); Sun, 15 Jan 2006 21:05:56 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932165AbWAPCF4 (ORCPT ); Sun, 15 Jan 2006 21:05:56 -0500 Received: from cable-212.76.255.90.static.coditel.net ([212.76.255.90]:897 "EHLO jekyll.org") by vger.kernel.org with ESMTP id S932164AbWAPCFz (ORCPT ); Sun, 15 Jan 2006 21:05:55 -0500 Message-ID: <43CAFF80.2020707@jekyll.org> Date: Mon, 16 Jan 2006 03:05:52 +0100 From: Gilles May User-Agent: Mozilla Thunderbird 1.0.7-1.1.fc4 (X11/20050929) X-Accept-Language: en-us, en MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: SMP trouble Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hello, I got a wierd problem with my dual Athlon box. The board is a K7D Master-L with 2 Athlon-MP 2800+ processors. Running it with SMP enabled in the kernel makes it freeze on heavy activity. I can always reproduce a freeze by watching a movie while copying files to/from USB disk, or on ping -f to a box on my LAN. Without SMP support in the kernel I can do this for hours and no freeze. The kernels I tried are ranging from 2.6.11-1.1369 (FC4) to 2.6.15 vanilla kernel. Running from console with no X nor any proprietary modules loaded. I already tried diffent things to no avail like: Different preemtion models acpi=off on boot Enable kernel irq balancing on/off Lots of different BIOS setting (Using fail-safe most of the time though) As my HW monitors tell me there's no overheating going on on any of the CPU's (at 53C and 54C now). I'd be really grateful for any ideas / workarounds as I really don't know what to try anymore and a new machine is out of the question financially. Regards, Gilles May