From owner-freebsd-stable@FreeBSD.ORG Sat Jan 6 13:44:27 2007 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id F34D916A403 for ; Sat, 6 Jan 2007 13:44:26 +0000 (UTC) (envelope-from aw1@stade.co.uk) Received: from lon-mail-1.gradwell.net (lon-mail-1.gradwell.net [193.111.201.125]) by mx1.freebsd.org (Postfix) with ESMTP id 5A78613C428 for ; Sat, 6 Jan 2007 13:44:26 +0000 (UTC) (envelope-from aw1@stade.co.uk) Received: from alsager-adsl.stade.co.uk ([81.6.222.119] helo=access2.hanley.stade.co.uk country=GB) by lon-mail-1.gradwell.net with esmtp (Gradwell gwh-smtpd 1.238) id 459f9e2e.b3f5.6c for freebsd-stable@freebsd.org; Sat, 6 Jan 2007 13:03:42 +0000 (envelope-sender ) Received: from steerpike.hanley.stade.co.uk (steerpike [192.168.1.10]) by access2.hanley.stade.co.uk (8.13.8/8.13.8) with ESMTP id l06D3ffT020551 for ; Sat, 6 Jan 2007 13:03:41 GMT (envelope-from aw1@steerpike.hanley.stade.co.uk) Received: from steerpike.hanley.stade.co.uk (localhost [127.0.0.1]) by steerpike.hanley.stade.co.uk (8.13.8/8.13.8) with ESMTP id l06D3dTt055959 for ; Sat, 6 Jan 2007 13:03:39 GMT (envelope-from aw1@steerpike.hanley.stade.co.uk) Received: (from aw1@localhost) by steerpike.hanley.stade.co.uk (8.13.8/8.13.8/Submit) id l06D3cxk055958 for freebsd-stable@freebsd.org; Sat, 6 Jan 2007 13:03:38 GMT (envelope-from aw1) Date: Sat, 6 Jan 2007 13:03:38 +0000 From: Adrian Wontroba To: freebsd-stable@freebsd.org Message-ID: <20070106130338.GA55798@steerpike.hanley.stade.co.uk> Mail-Followup-To: Adrian Wontroba , freebsd-stable@freebsd.org References: <200701061914.41528.robertsg@westnet.com.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200701061914.41528.robertsg@westnet.com.au> User-Agent: Mutt/1.4.2.2i X-Operating-System: FreeBSD 6.2-PRERELEASE Organization: Oh dear, I've joined one again. X-Virus-Scanned: ClamAV 0.88.6/2416/Sat Jan 6 04:54:14 2007 on access2.hanley.stade.co.uk X-Virus-Scanned: ClamAV 0.88.6/2416/Sat Jan 6 04:54:14 2007 on steerpike.hanley.stade.co.uk X-Virus-Status: Clean Subject: Re: System freeze on 6.1/2 when running makeworld and dump X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: aw1@stade.co.uk List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 06 Jan 2007 13:44:27 -0000 On Sat, Jan 06, 2007 at 07:14:41PM +1100, Geoff Roberts wrote: > I can consistantly make my system freeze when building makeworld and > running dump at the same time. The system actually locks - I have to > hit the reset switch to bring the system back to life. I have an old SMP machine at work which sometimes does something similar during its daily housekeeping, where Apache and Nagios are bounced and a small MySQL database dumped. It sometimes appears to hang during the database dump. The debugger shows many processes waiting for UFS. I suspect that the problem starts several minutes earlier. All of the following help to keep the problem away: Upgrading from a several months old 5-STABLE to 6-STABLE. Inserting 60 second delays at various points. Disabling SMP. No core dump available (Mylex disk controller). My next diagnostic step will be a serial console. -- Adrian Wontroba The biggest mistake you can make is to believe that you are working for someone else.