I've been given a laptop to put NetBSD on as part of an ongoing project. 
The initial target was 2.1 which I eventually got installed and working (I 
needed the PCIBIOS_*_FIXUP options for it to find the bce(4) chipset and 
to pullup revision 1.8 of if_bce.c to recognise it). bce0 worked fine.

I've now just installed 4.0_BETA2 (GENERIC_LAPTOP) on the same hardware 
and when I try to "ifconfig bce0 inet 192.168.1.71 netmask 255.255.255.0" 
the machine hangs. I can't switch terminals, the existing terminal echos 
keypresses, but will not respond. If I break to ddb, the hand appears to 
be in rn_search().

wpi0 works fine by comparison.

This looks like a regression to me.

-- 
Stephen