From owner-freebsd-net@FreeBSD.ORG Wed Jun 18 15:32:05 2008 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 88D06106566B for ; Wed, 18 Jun 2008 15:32:05 +0000 (UTC) (envelope-from kris@FreeBSD.org) Received: from weak.local (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id CF5CB8FC13; Wed, 18 Jun 2008 15:32:02 +0000 (UTC) (envelope-from kris@FreeBSD.org) Message-ID: <48592A72.6050903@FreeBSD.org> Date: Wed, 18 Jun 2008 17:32:02 +0200 From: Kris Kennaway User-Agent: Thunderbird 2.0.0.14 (Macintosh/20080421) MIME-Version: 1.0 To: Dave Robison References: <48582132.7040103@pioneerspirits.com> In-Reply-To: <48582132.7040103@pioneerspirits.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-net@freebsd.org Subject: Re: NAT crashing FreeBSD 7.x X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 18 Jun 2008 15:32:05 -0000 Dave Robison wrote: > Hiya, > > I posted this to -questions but didn't get any responses so I'm posting > it again here. > > I'm having problems with NAT crashing my FreeBSD box. This never > happened in 6.x but in 7.x it's predictable for me. Any time I use > either of my two NICs for my internal net my FreeBSD box hangs and > requires power cycling to reboot. Take a look at the chapter on kernel debugging in the developers handbook. Add WITNESS to your kernel, then provoke the bug. If it doesn't catch any locking problems, follow the instructions about using DDB to collect debugging information. Kris