From owner-freebsd-stable@FreeBSD.ORG Tue Sep 30 14:53:39 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E46B01065687 for ; Tue, 30 Sep 2008 14:53:39 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from server.baldwin.cx (bigknife-pt.tunnel.tserv9.chi1.ipv6.he.net [IPv6:2001:470:1f10:75::2]) by mx1.freebsd.org (Postfix) with ESMTP id 87C3D8FC0A for ; Tue, 30 Sep 2008 14:53:39 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from localhost.corp.yahoo.com (john@localhost [IPv6:::1]) (authenticated bits=0) by server.baldwin.cx (8.14.2/8.14.2) with ESMTP id m8UErRFe056950; Tue, 30 Sep 2008 10:53:27 -0400 (EDT) (envelope-from jhb@freebsd.org) From: John Baldwin To: freebsd-stable@freebsd.org Date: Tue, 30 Sep 2008 10:47:29 -0400 User-Agent: KMail/1.9.7 References: <20080929221408.54e6a03a.lehmann@ans-netz.de> In-Reply-To: <20080929221408.54e6a03a.lehmann@ans-netz.de> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200809301047.29629.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH authentication, not delayed by milter-greylist-2.0.2 (server.baldwin.cx [IPv6:::1]); Tue, 30 Sep 2008 10:53:28 -0400 (EDT) X-Virus-Scanned: ClamAV 0.93.1/8359/Tue Sep 30 09:29:02 2008 on server.baldwin.cx X-Virus-Status: Clean X-Spam-Status: No, score=-2.6 required=4.2 tests=AWL,BAYES_00,NO_RELAYS autolearn=ham version=3.1.3 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on server.baldwin.cx Cc: Oliver Lehmann Subject: Re: system hangup - I'm lost X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 30 Sep 2008 14:53:40 -0000 On Monday 29 September 2008 04:14:08 pm Oliver Lehmann wrote: > Hi, > > My fileserver has sporadical hangups running 6.3: > > FreeBSD 6.3-STABLE #0: Thu Jun 19 00:21:00 CEST 2008 > olivleh1@nudel.salatschuessel.net:/usr/obj/i386-pentium3-6.3/usr/src/sys/NUDEL > > The exact release doesn't matter since it happened before. It always > happens afer some time of having some load on the system (I'm building > ports with tinderbox and during the build process it just hangs up). > > The system does nothing write out on the console, neither the CRT, nor > the serial console. 1) Setup support for crashdumps. 2) Add 'DDB' and 'KDB' to your kernel. When it hangs, break into the debugger (CTRL+ALT+ESC) and run 'panic' to generate a crash dump. 3) ps -axl -M /var/crash/vmcore.X -N /boot/kernel/kernel (where vmcore.X is the core file generated, probably vmcore.0). That's the first place to start. -- John Baldwin