From owner-freebsd-stable@FreeBSD.ORG Thu Aug 29 11:26:42 2013 Return-Path: Delivered-To: freebsd-stable@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id B38688AD; Thu, 29 Aug 2013 11:26:42 +0000 (UTC) (envelope-from jase@FreeBSD.org) Received: from svr06-mx.btshosting.co.uk (mx-2.btshosting.co.uk [IPv6:2a01:4f8:121:2403:2::]) (using TLSv1 with cipher ADH-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 760F12DCB; Thu, 29 Aug 2013 11:26:42 +0000 (UTC) Received: from [192.168.1.242] (unknown [90.202.210.251]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by svr06-mx.btshosting.co.uk (Postfix) with ESMTPSA id CBA2088DE9; Thu, 29 Aug 2013 11:26:40 +0000 (UTC) Message-ID: <521F2FF0.3020502@FreeBSD.org> Date: Thu, 29 Aug 2013 12:26:40 +0100 From: Jase Thew Organization: The FreeBSD Project User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:17.0) Gecko/20130801 Thunderbird/17.0.8 MIME-Version: 1.0 To: Andriy Gapon Subject: Re: [HEADS UP] change in devfs path matching logic References: <51F28A33.7040209@FreeBSD.org> <52176C7B.4070701@FreeBSD.org> <20130824230324.12371xhs3clidbi8@webmail.raad.tartu.ee> <521E3394.5050000@FreeBSD.org> <521EFCAB.5030200@FreeBSD.org> <521F0F5E.3070900@FreeBSD.org> <521F1E51.80309@FreeBSD.org> In-Reply-To: <521F1E51.80309@FreeBSD.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-stable@FreeBSD.org X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Aug 2013 11:26:42 -0000 On 29/08/2013 11:11, Andriy Gapon wrote: > on 29/08/2013 12:07 Jase Thew said the following: >> After some fiddling about, I've obtained a crashdump of this panic : >> >> http://goo.gl/sRXjo4 >> >> If you need anything else, please let me know. > > Obviously, I can't do anything with the vmcore without the matching kernel (and > perhaps modules). Also, kgdb and libkvm.so from the matching system can be needed. > > Perhaps you could try examining the devfs_rule_run frame to give a start? > Like listing the source code line and examining all local variables. > > Thank you. > Hi Andriy, Unless I'm doing something wrong, there doesn't appear to be any useful information contained in the frame other than source line. kgdb script is available at http://goo.gl/ZS8Mjj I'll try merging r211847 as you suggested and will report back. Regards, Jase. -- Jase Thew jase@FreeBSD.org FreeBSD Ports Committer