Date: Tue, 2 Nov 2010 22:57:19 -0700 From: Jeremy Chadwick <freebsd@jdc.parodius.com> To: Dan Allen <danallen46@airwired.net> Cc: freebsd-stable@freebsd.org Subject: Re: Fatal trap 18 Message-ID: <20101103055719.GA65417@icarus.home.lan> In-Reply-To: <68E248E0-8619-4859-BFFE-1B5F5ABBC51F@airwired.net> References: <68E248E0-8619-4859-BFFE-1B5F5ABBC51F@airwired.net>
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On Tue, Nov 02, 2010 at 11:30:28PM -0600, Dan Allen wrote: > FreeBSD 8.1-STABLE sometime after 10/28/2010 has caused a fatal boot error on my Toshiba U205, 1.8 GHz Core Duo laptop. > > Many times every week I sync with STABLE and build everything. I have been doing this for years. > > I sync'd (via csup) and built on 10/28/2010 and everything was fine. > > Then I sync'd yesterday 11/1/2010 and it crashes on boot. The diagnostics print out the following: > > --- > > Fatal trap 18: integer divide fault while in kernel mode > > kdb_backtrace > panic > trap_fatal > trap > calltrap > topo_probe > cpu_topo > smp_topo > sched_setup > mi_startup > > --- > > I reverted at the loader via boot /boot/kernel.old, resync'd today, rebuilt, and things are still broken. > > Any ideas? This looks like it could be related to the Intel CPU topology change that was recently MFC'd: http://freshbsd.org/2010/11/01/08/20/14 Can you please roll your source code back to a date prior to the above commit, rebuild, and re-try? You can accomplish this using the "date" option in your cvsup/csup file. See csup(1) for details. I would recommend also chopping off an additional hour "just in case". -- | Jeremy Chadwick jdc@parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |
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