From owner-freebsd-net@FreeBSD.ORG Thu Sep 27 17:27:54 2007 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 9C7D716A421; Thu, 27 Sep 2007 17:27:54 +0000 (UTC) (envelope-from kris@FreeBSD.org) Received: from weak.local (hub.freebsd.org [IPv6:2001:4f8:fff6::36]) by mx1.freebsd.org (Postfix) with ESMTP id 0CA3113C469; Thu, 27 Sep 2007 17:27:51 +0000 (UTC) (envelope-from kris@FreeBSD.org) Message-ID: <46FBE818.3020800@FreeBSD.org> Date: Thu, 27 Sep 2007 19:27:52 +0200 From: Kris Kennaway User-Agent: Thunderbird 2.0.0.6 (Macintosh/20070728) MIME-Version: 1.0 To: Ivan Voras References: In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-net@freebsd.org Subject: Re: Panic in rt_check 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: Thu, 27 Sep 2007 17:27:54 -0000 Ivan Voras wrote: > Hi, > > I have a machine that panics almost daily in route.c, in rt_check(). > This panic has been reported by several users, including Marcel > Moolenaar for a machine in freebsd.org. > > The problem is present in both 6-STABLE and 7-CURRENT, and apparently it > manifests on SMP machines, both i386 and AMD64. > > The panic backtrace looks like this: > > panic: mtx_lock() of destroyed mutex @ /usr/src/sys/net/route.c:1305 I've asked this before of others without getting an answer: is it possible that your gateway route is disappearing (e.g. router going offline, flaky switch, cable unplugged, etc)? I have seen this panic (only) in that situation. Kris