using ipfw forward with gre tunnel crashes machine (BUG)

[Paul]

Hoping maybe one of you can test this as I didn't have time to look into 
it, but I tried twice.

Setting up gre interface and then using IPFW

Gre interface 1.1.1.1 -- 1.1.1.2
ipfw fwd 1.1.1.2  ip from any to any recv lagg2

Command works no problem.  The instant any traffic at all is sent 
incoming on lagg2 machine crashes (reboots), nothing in log.


Thanks :)