To add to my original message... 
This occurs in NetBSD-1.5 Release, too.

What causes the panic is ifconfig'ing an IP address on the card. The card can be
brought up, set netmask and broadcast address, but when an IP address is set,
the system immediately panics.

If there's something I can do in the debugger which will provide more info,
please let me know.

Dan


Quoting DP <dp@recycled.net>:

> IBM Z50, 48Mb RAM, 1Gb MicroDrive, Lucent WaveLAN Gold PCMCIA 802.11B
> card.
> NetBSD 1.5_BETA2 from 12/2 or so.
> 
> The card detects on boot properly:
> 
> wi0 at pcmcia0 function 0 port 0x15000400-0x1500043f
> wi0: address 00:02:2d:09:2b:fa
> 
> ...But kernel panics when the card is ifconfig'ed.
> 
> # ifconfig wi0 172.16.0.27 netmask 0xffffff00 up
> pcmica: card irq 3
> trap: address error (load or I-fetch) in kernel mode
> status=0x7803, cause=0x510, epc=0x8016c804, vaddr=0xc001622f
> pid=185 cmd=ifconfig usp=0x7fffec18 ksp=0xc3cdf6a8
> Stopped in ifconfig at  0x8016c804:        lhu      vi,0(s0)
> db>
> 
>