From owner-freebsd-questions@FreeBSD.ORG Wed Mar 2 02:01:19 2005 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4496B16A4DF for ; Wed, 2 Mar 2005 02:01:19 +0000 (GMT) Received: from ecserv7.uwaterloo.ca (ecserv7.uwaterloo.ca [129.97.50.127]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5038043D48 for ; Wed, 2 Mar 2005 02:01:18 +0000 (GMT) (envelope-from bruce@sciborg.uwaterloo.ca) Received: from ecserv7.uwaterloo.ca (localhost.uwaterloo.ca [127.0.0.1]) j2221MAG035267 for ; Tue, 1 Mar 2005 21:01:22 -0500 (EST) (envelope-from bruce@sciborg.uwaterloo.ca) Received: (from www@localhost) by ecserv7.uwaterloo.ca (8.12.10/8.12.10/Submit) id j2221MfQ035263 for freebsd-questions@freebsd.org; Tue, 1 Mar 2005 21:01:22 -0500 (EST) (envelope-from bruce@sciborg.uwaterloo.ca) X-Authentication-Warning: ecserv7.uwaterloo.ca: www set sender to bruce@scimail.uwaterloo.ca using -f Received: from 65.93.197.104 ( [65.93.197.104])HTTP; Tue, 1 Mar 2005 21:01:22 -0500 Message-ID: <1109728882.42251e7274c92@www.nexusmail.uwaterloo.ca> Date: Tue, 1 Mar 2005 21:01:22 -0500 From: Bruce Campbell To: freebsd-questions@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit User-Agent: Internet Messaging Program (IMP) 3.1 / FreeBSD-4.6.2 X-Originating-IP: 65.93.197.104 Subject: Had to revert from 5.3 to 4.11 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 02 Mar 2005 02:01:19 -0000 Upgraded a large e-mail server from 4.7 to 5.3 late December/2004 The 5.3 system never stayed up for more than 3 days (kernel panics - often while running "vacation"). A fair bit of fiddling trying to keep it running for about a month, then gave up. Kept the kernel tree updated, no difference. Reverted to 4.11 about 3 weeks ago, no problems since. Also upgraded a web server to 5.3 during that time, and had to retreat also, same reasons. We do have a heavily loaded 5.2.1 system running well. Main difference between the crashy and reliable system is nfs home dirs on the mail and web servers. nfs server is 4.7 Same hardware in all cases, dual xeon supermicro. At a later time we will invest further diagnostic effort. Sorry for the lack of specifics. -- Bruce Campbell Manager, Science Computing CPH-2374B University of Waterloo (519)888-4567 ext 6991 ---------------------------------------- This mail sent through www.mywaterloo.ca