From owner-freebsd-stable@FreeBSD.ORG Wed Mar 9 02:04:57 2005 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id CFCA116A4CE for ; Wed, 9 Mar 2005 02:04:57 +0000 (GMT) Received: from relais.videotron.ca (relais.videotron.ca [24.201.245.36]) by mx1.FreeBSD.org (Postfix) with ESMTP id 3219443D46 for ; Wed, 9 Mar 2005 02:04:57 +0000 (GMT) (envelope-from pldrouin@pldrouin.net) Received: from [24.200.176.90] by VL-MO-MR007.ip.videotron.ca (iPlanet Messaging Server 5.2 HotFix 1.21 (built Sep 8 2003)) with ESMTP id <0ID200L19B489K@VL-MO-MR007.ip.videotron.ca> for freebsd-stable@freebsd.org; Tue, 08 Mar 2005 21:04:56 -0500 (EST) Date: Tue, 08 Mar 2005 21:04:54 -0500 From: Pierre-Luc Drouin To: freebsd-stable@freebsd.org Message-id: <422E59C6.9040007@pldrouin.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:1.7.5) Gecko/20041231 Subject: kernel trap 12 with interrupts disabled, 5.3-stable X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Mar 2005 02:04:57 -0000 I have updated a system from FreeBSD 4.10 to 5.3 (I did a fresh new installation from scatch). At the same time we put a new CPUs in there. The system is now a dual Xenon 3.2 GHZ with hyperthreading. When there's load on the server, it crashes. Here is what I get on the console: kernel trap 12 with interrupts disabled Fatal trap 12: page fault while in kernel mode cpuid = 3; apic id = 07 fault virtual address = 0x8 fault code = supervisor write, page not present instruction pointer = 0x8:0xc064973e stack pointer = 0x10:0xe338fc00 frame pointer = 0x10:0xe338fc0c code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = resume, IOPL = 0 current process = 1 (init) trap number = 12 panic: page fault cpuid = 3 spin lock sleepq chain held by 0xc22ad320 for > 5 seconds What could be the cause? The system was very stable with FreeBSD 4.10 and only 2 CPUs (1 real and 1 virtual). When I've seen page faults in the past, it was caused by the RAM or the motherboard. Is it almost always the case? Does the fact to add 2 new CPUs is more likely to reveal a RAM problem that was not known before? Thanks