From owner-freebsd-current@FreeBSD.ORG Mon Jul 30 12:10:34 2007 Return-Path: Delivered-To: freebsd-current@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 68DCC16A419 for ; Mon, 30 Jul 2007 12:10:34 +0000 (UTC) (envelope-from olli@lurza.secnetix.de) Received: from lurza.secnetix.de (lurza.secnetix.de [IPv6:2001:1b20:1:3::1]) by mx1.freebsd.org (Postfix) with ESMTP id C85A813C467 for ; Mon, 30 Jul 2007 12:10:33 +0000 (UTC) (envelope-from olli@lurza.secnetix.de) Received: from lurza.secnetix.de (mhmdaz@localhost [127.0.0.1]) by lurza.secnetix.de (8.13.4/8.13.4) with ESMTP id l6UCAQeJ065517; Mon, 30 Jul 2007 14:10:32 +0200 (CEST) (envelope-from oliver.fromme@secnetix.de) Received: (from olli@localhost) by lurza.secnetix.de (8.13.4/8.13.1/Submit) id l6UCAQFa065516; Mon, 30 Jul 2007 14:10:26 +0200 (CEST) (envelope-from olli) Date: Mon, 30 Jul 2007 14:10:26 +0200 (CEST) Message-Id: <200707301210.l6UCAQFa065516@lurza.secnetix.de> From: Oliver Fromme To: freebsd-current@FreeBSD.ORG, peter.schuller@infidyne.com In-Reply-To: <200707292157.09742.peter.schuller@infidyne.com> X-Newsgroups: list.freebsd-current User-Agent: tin/1.8.2-20060425 ("Shillay") (UNIX) (FreeBSD/4.11-STABLE (i386)) MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.1.2 (lurza.secnetix.de [127.0.0.1]); Mon, 30 Jul 2007 14:10:32 +0200 (CEST) Cc: Subject: Re: (ZFS?): panic: lockmgr: locking against myself X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: freebsd-current@FreeBSD.ORG, peter.schuller@infidyne.com List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 30 Jul 2007 12:10:34 -0000 Peter Schuller wrote: > Based on the last printout prior to panic, it is the second call in the > function (code line wise; i.e., when locking rootvnode) that is triggering > the panic, on this vnode: > > vnode 0xffffff00037473e0: tag devfs, type VDIR > usecount 0, writecount 0, refcount 1 mountedhere 0xffffff0003745ca0 > flags (VV_ROOT) > lock type devfs: EXCL (count 1) by thread 0xffffff00010e6680 (pid 1) > > Also, this time I triggered it after having dropped a drive (as opposed to > when I then booted back up again with two drives). > > Am I understanding this correctly that the root filesystem has suddenly become > devfs? FreeBSD boots with DEVFS mounted as the root filesystem, then mounts the real root filesystem and remounts DEVFS to /dev. That's because there's a chicken-and-egg problem: DEVFS is required in order to be able to mount any filesystem, including the (real) root filesystem. Best regards Oliver -- Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M. Handelsregister: Registergericht Muenchen, HRA 74606, Geschäftsfuehrung: secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün- chen, HRB 125758, Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart FreeBSD-Dienstleistungen, -Produkte und mehr: http://www.secnetix.de/bsd > Can the denizens of this group enlighten me about what the > advantages of Python are, versus Perl ? "python" is more likely to pass unharmed through your spelling checker than "perl". -- An unknown poster and Fredrik Lundh