Date: Mon, 30 Jul 2007 14:10:26 +0200 (CEST) From: Oliver Fromme <olli@lurza.secnetix.de> To: freebsd-current@FreeBSD.ORG, peter.schuller@infidyne.com Subject: Re: (ZFS?): panic: lockmgr: locking against myself Message-ID: <200707301210.l6UCAQFa065516@lurza.secnetix.de> In-Reply-To: <200707292157.09742.peter.schuller@infidyne.com>
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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
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