From owner-freebsd-questions@FreeBSD.ORG Mon Oct 6 17:18:11 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id AF1071065697 for ; Mon, 6 Oct 2008 17:18:11 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from QMTA07.emeryville.ca.mail.comcast.net (qmta07.emeryville.ca.mail.comcast.net [76.96.30.64]) by mx1.freebsd.org (Postfix) with ESMTP id 6FA698FC42 for ; Mon, 6 Oct 2008 17:18:10 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from OMTA09.emeryville.ca.mail.comcast.net ([76.96.30.20]) by QMTA07.emeryville.ca.mail.comcast.net with comcast id PSbq1a00T0S2fkCA7VJA1V; Mon, 06 Oct 2008 17:18:10 +0000 Received: from koitsu.dyndns.org ([69.181.141.110]) by OMTA09.emeryville.ca.mail.comcast.net with comcast id PVJ91a0042P6wsM8VVJ9Qg; Mon, 06 Oct 2008 17:18:10 +0000 X-Authority-Analysis: v=1.0 c=1 a=6I5d2MoRAAAA:8 a=BY3-Sj9qAAAA:8 a=QycZ5dHgAAAA:8 a=HCo3huKQo-UG6YJrXWYA:9 a=HzDs3dfp0agXfqTCXvEA:7 a=i0GR9EPJCDKvTgEkDztTOBUa_oQA:4 a=EoioJ0NPDVgA:10 a=LY0hPdMaydYA:10 Received: by icarus.home.lan (Postfix, from userid 1000) id 32428C9419; Mon, 6 Oct 2008 10:18:09 -0700 (PDT) Date: Mon, 6 Oct 2008 10:18:09 -0700 From: Jeremy Chadwick To: Mister Olli Message-ID: <20081006171809.GA26368@icarus.home.lan> References: <1223273047.23248.25.camel@phoenix.blechhirn.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1223273047.23248.25.camel@phoenix.blechhirn.net> User-Agent: Mutt/1.5.18 (2008-05-17) Cc: freebsd-questions@freebsd.org Subject: Re: analyzing freebsd core dumps X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 06 Oct 2008 17:18:11 -0000 On Mon, Oct 06, 2008 at 08:04:07AM +0200, Mister Olli wrote: > hi list... > > I have a freebsd maschine running for more 6 months without any > problems. > the machine's only service is to be an openvpn gateway for a hand of > users. > > 2 weeks ago the first problems started. the openvpn exited with signal > 11 and 4 and core dumps were written. > > the same happend yesterday with the postfix/cleanup process, and the > suddenly the machine rebooted without any further log messages. > > what is the best way to troubleshoot the cause of this problem? Signal 11 happening "out of no where" on machines which have been running fine, most of the time, is a sign of hardware failure (usually RAM, but sometimes motherboard or PSU). The fact you got a reboot is also further evidence of this. http://www.freebsd.org/doc/en/books/faq/troubleshoot.html#SIGNAL11 I would recommend taking the machine offline and running something like memtest86+ on it for 6-7 hours. Any errors seen are a pretty good sign that you should replace the memory or the motherboard. You can download an ISO or floppy disk images here: http://www.memtest.org/ Bottom line is that this is probably a hardware issue. -- | Jeremy Chadwick jdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |