Date: Wed, 02 Nov 2005 21:55:13 +0100 From: Stefan Ehmann <shoesoft@gmx.net> To: Kris Kennaway <kris@obsecurity.org> Cc: current@freebsd.org Subject: Re: panic in devfs_populate_loop() Message-ID: <1130964913.1076.19.camel@taxman.pepperland> In-Reply-To: <20051102200511.GA86903@xor.obsecurity.org> References: <1130947073.1076.12.camel@taxman.pepperland> <20051102200511.GA86903@xor.obsecurity.org>
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On Wed, 2005-11-02 at 15:05 -0500, Kris Kennaway wrote: > On Wed, Nov 02, 2005 at 04:57:53PM +0100, Stefan Ehmann wrote: > > After todays cvsup and buildworld/kernel I get a panic during boot. > > > > Kernel from October 29th works fine. Maybe related to the latest ACPI-CA > > import. > > > > Panic string and backtrace hand-transcribed. > > > > Fatal trap 12: page fault while in kernel mode > > > > devfs_populate_loop() > > devfs_populate() > > devfs_lookup() > > VOP_LOOKUP_APV() > > lookup() > > namei() > > kern_symlink() > > devfs_first() > > vfs_mountroot() > > start_init > > fork_exit() > > fork_trampoline() > > You'll need to obtain further debugging information (i.e. crash dump) I cannot get a dump because the panic happens before dumpon is executed. The handbook says this about obtaining a crash dump: "Alternatively, the dump device can be hard-coded via the dump clause in the config(5) line of a kernel configuration file. This approach is deprecated and should be used only if a kernel is crashing before dumpon(8) can be executed." Unfortunately I could not figure out how to do this. Google only found http://lists.freebsd.org/pipermail/freebsd-current/2005-April/049465.html but that's not very helpful.
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