From owner-freebsd-hackers@FreeBSD.ORG Mon Mar 14 20:25:18 2005 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4195216A4CE for ; Mon, 14 Mar 2005 20:25:18 +0000 (GMT) Received: from kuldipmanak.chamkila.org (node-40240ed2.sjc.onnet.us.uu.net [64.36.14.210]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0ACE643D2D for ; Mon, 14 Mar 2005 20:25:13 +0000 (GMT) (envelope-from aman@chamkila.org) Received: from mail.chamkila.org (localhost.localdomain [127.0.0.1]) j2EKNxBg030337; Mon, 14 Mar 2005 12:23:59 -0800 Received: from 69.36.228.194 (proxying for 192.168.96.214) (SquirrelMail authenticated user aman); by mail.chamkila.org with HTTP; Mon, 14 Mar 2005 12:23:59 -0800 (PST) Message-ID: <32883.69.36.228.194.1110831839.squirrel@69.36.228.194> In-Reply-To: <44497.69.36.228.194.1110474073.squirrel@69.36.228.194> References: <20050119103214.A27409@pooker.samsco.org> <37799.69.36.228.194.1109286815.squirrel@69.36.228.194> <421E604F.3080305@samsco.org> <34148.69.36.228.194.1110235564.squirrel@69.36.228.194> <44497.69.36.228.194.1110474073.squirrel@69.36.228.194> Date: Mon, 14 Mar 2005 12:23:59 -0800 (PST) From: "Amandeep Pannu" To: "Amandeep Pannu" User-Agent: SquirrelMail/1.5.0 MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Priority: 3 Importance: Normal cc: freebsd-hackers@freebsd.org cc: aman@chamkila.org Subject: Re: Freebsd 5.3 problem X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 14 Mar 2005 20:25:18 -0000 HI all, I am running FreeBSd 5.3-REL Today my system simply locked up. There was no error sent to console, to any logs, nor the monitor screen. It was totally unresponsive to network, serial console, or keyboard. After 4 power-cycles, we were unable to get past the BIOS as it was reporting "RAM R/W error". I have a screen shot of this from the serial port console, but it is the same as the one from before. If I hit the "F1" key to continue, FreeBSD seemingly reports ACPI-0277: *** Warning: Invalid checksum in table [APIC] (98, sum 84 is not zero) just before booting. It is after the boot screen, but before the copyright is displayed by the kernel. Finally, I turned the machine off for about 2 minutes, then turned it back on. It was able to get through the BIOS RAM test and reboot cleanly, and the file systems cleaned themselves up and the database did so as well, and it appears to be running fine. Any ideas what is going on. Thanks A