From owner-p4-projects@FreeBSD.ORG Mon Jun 9 03:49:55 2008 Return-Path: Delivered-To: p4-projects@freebsd.org Received: by hub.freebsd.org (Postfix, from userid 32767) id 0912A1065671; Mon, 9 Jun 2008 03:49:55 +0000 (UTC) Delivered-To: perforce@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id BFB92106566B for ; Mon, 9 Jun 2008 03:49:54 +0000 (UTC) (envelope-from ticso@cicely7.cicely.de) Received: from raven.bwct.de (raven.bwct.de [85.159.14.73]) by mx1.freebsd.org (Postfix) with ESMTP id 29D0E8FC1A for ; Mon, 9 Jun 2008 03:49:53 +0000 (UTC) (envelope-from ticso@cicely7.cicely.de) Received: from cicely5.cicely.de ([10.1.1.7]) by raven.bwct.de (8.13.4/8.13.4) with ESMTP id m593KwvB035215 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Mon, 9 Jun 2008 05:20:59 +0200 (CEST) (envelope-from ticso@cicely7.cicely.de) Received: from cicely7.cicely.de (cicely7.cicely.de [10.1.1.9]) by cicely5.cicely.de (8.14.2/8.14.2) with ESMTP id m593Ku2s050775 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 9 Jun 2008 05:20:56 +0200 (CEST) (envelope-from ticso@cicely7.cicely.de) Received: from cicely7.cicely.de (localhost [127.0.0.1]) by cicely7.cicely.de (8.14.2/8.14.2) with ESMTP id m593Kp3V082655; Mon, 9 Jun 2008 05:20:51 +0200 (CEST) (envelope-from ticso@cicely7.cicely.de) Received: (from ticso@localhost) by cicely7.cicely.de (8.14.2/8.14.2/Submit) id m593Korn082654; Mon, 9 Jun 2008 05:20:50 +0200 (CEST) (envelope-from ticso) Date: Mon, 9 Jun 2008 05:20:50 +0200 From: Bernd Walter To: Hans Petter Selasky Message-ID: <20080609032050.GR71712@cicely7.cicely.de> References: <200806081504.m58F4CtW034713@repoman.freebsd.org> <200806082000.15982.hselasky@c2i.net> <200806082313.03865.hselasky@c2i.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200806082313.03865.hselasky@c2i.net> X-Operating-System: FreeBSD cicely7.cicely.de 7.0-STABLE i386 User-Agent: Mutt/1.5.11 X-Spam-Status: No, score=-4.4 required=5.0 tests=ALL_TRUSTED=-1.8, BAYES_00=-2.599 autolearn=ham version=3.2.3 X-Spam-Checker-Version: SpamAssassin 3.2.3 (2007-08-08) on cicely12.cicely.de Cc: Perforce Change Reviews Subject: Re: PERFORCE change 143121 for review X-BeenThere: p4-projects@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: ticso@cicely.de List-Id: p4 projects tree changes List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 09 Jun 2008 03:49:55 -0000 On Sun, Jun 08, 2008 at 11:13:03PM +0200, Hans Petter Selasky wrote: > Hi, > > It might look like that my "init" executable in the file system is out of > date. The kernel boots fine up to the following point: > > Trying to mount root from ufs:/dev/md0 > warning: no time-of-day clock registered, system time will not be set > accurately > Jun 4 20:32:47 init: login_getclass: unknown class 'daemon' > Fatal kernel mode data abort: 'Alignment Fault 3' > trapframe: 0xc67f7a24 We've seen this at least on RM9200 from time to time - not sure about other arm. Try adding or removing a driver to your kernel and see if it helps. It's some kind of heisenbug, because a small unrelated change and the problem is away, which makes is hard to debug. See arm@ mail archives for more details. IIRC it happened earlier during boot, so this can still be something different after all. Even with an out of date init the kernel shouldn't panic with an alignment fault. -- B.Walter http://www.bwct.de Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.