From owner-freebsd-hardware@FreeBSD.ORG Tue Jan 3 21:46:17 2006 Return-Path: X-Original-To: freebsd-hardware@freebsd.org Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 57AB716A41F for ; Tue, 3 Jan 2006 21:46:17 +0000 (GMT) (envelope-from jstrait@moonloop.net) Received: from pd2mo3so.prod.shaw.ca (shawidc-mo1.cg.shawcable.net [24.71.223.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id A74AC43D4C for ; Tue, 3 Jan 2006 21:46:16 +0000 (GMT) (envelope-from jstrait@moonloop.net) Received: from pd2mr4so.prod.shaw.ca (pd2mr4so-qfe3.prod.shaw.ca [10.0.141.107]) by l-daemon (Sun ONE Messaging Server 6.0 HotFix 1.01 (built Mar 15 2004)) with ESMTP id <0ISJ007E6DT3GJ50@l-daemon> for freebsd-hardware@freebsd.org; Tue, 03 Jan 2006 14:46:15 -0700 (MST) Received: from pn2ml5so.prod.shaw.ca ([10.0.121.149]) by pd2mr4so.prod.shaw.ca (Sun ONE Messaging Server 6.0 HotFix 1.01 (built Mar 15 2004)) with ESMTP id <0ISJ00LLIDT3ZKL0@pd2mr4so.prod.shaw.ca> for freebsd-hardware@freebsd.org; Tue, 03 Jan 2006 14:46:15 -0700 (MST) Received: from [192.168.0.103] ([24.80.15.105]) by l-daemon (Sun ONE Messaging Server 6.0 HotFix 1.01 (built Mar 15 2004)) with ESMTP id <0ISJ00FN9DT2BM31@l-daemon> for freebsd-hardware@freebsd.org; Tue, 03 Jan 2006 14:46:15 -0700 (MST) Date: Tue, 03 Jan 2006 13:46:40 -0800 From: Jon Strait To: freebsd-hardware@freebsd.org Message-id: <43BAF0C0.2050600@moonloop.net> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1; format=flowed Content-transfer-encoding: 7bit X-Accept-Language: en-us, en User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.12) Gecko/20051209 Subject: Kernel panic only after power-on, never after reboot. X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 03 Jan 2006 21:46:17 -0000 I power on my FreeBSD 6.0 Release system every morning and within 20 minutes, the kernel panics. Then it reboots and I never see a panic again as long as my system stays powered. It is almost always because of a page fault. From doing a backtrace on the dumps from 30+ seperate panics over the last couple of months, the instruction pointer is always at a different code location. So, it's certainly some kind of hardware issue, but the behavior of never having a kernel panic happen after a reboot, makes me think that a part of the hardware is not getting fully powered up and initialized before the kernel begins to load. Is there a BIOS setting to slow things down? Or maybe a kernel parameter to tweak for greater hardware fault tolerance? I ran memtest86 for a couple of days (the recommended 64 passes) with no errors. I realize that this test could possibly result in a false negative, but I don't want to run out and buy a new mobo and RAM if that isn't the problem. My hardware is: mobo: ABIT KX7-333 with VIA Apollo KT 333 chipset CPU: AMD Athlon XP 2000+ (1667 Mhz) Memory: Generic PC2700 - 133 DDR The video, sound, and NIC cards have already been factored out of the problem. Thanks for any advice. Jon