Unreproducible crash - NetBSD 6.0_BETA

[Arthur Maciel <arthurmaciel%gmail.com@localhost>]

Hello! I've experienced an unreproducible crash while compiling www/firefox
and leaving another xterm with 'exit' command. I don't know if it has
anything to do with the fact that I'm running wip/stumpwm as a window
manager and a patched kernel for interl i915 DRM/GEM support.

I was presented with ddb and could only run 'bt' command. 'sync' printed
"dump" output and hung the system (I couldn't see any harddrive or cpu
actitivity through the netbook leds). I took pictures of it and don't know
if they are useful.

$ uname -a
NetBSD thunder 6.0_BETA NetBSD 6.0_BETA (GENERIC) #0: Sat Feb 25 06:14:22
BRST 2012  
arthur@thunder:/home/arthur/local/netbsd-drmgem/usr/src/sys/arch/i386/compile/GENERIC
i386

http://dl.dropbox.com/u/621606/2012-03-11%2018.58.32.jpg
http://dl.dropbox.com/u/621606/2012-03-11%2018.59.32.jpg
http://dl.dropbox.com/u/621606/2012-03-11%2019.00.12.jpg

Thanks for help!
Arthur