mvme88k kernel problems

["Steve Murphree, Jr." <smurph_(_at_)_lgate_(_dot_)_cneti_(_dot_)_com>]

Hello, 
I'm working on a kernel for the mvme88k.  I'm running into some problems 
with the autoconfig process.  I know this is very machine dependant, but 
maybe someone has had a similar problem on another arch.

The problem:
kernel autoconfigs the cl device,
then the siop device, 
then bombs with an exception before the scsibus is configured.

The exception number is 0 (zero).  Looking through the code I find that this 
exception occours when there is a non-trap exception and shadowing registers 
is off.

I can get the exception at another point by specifying -d kernel param.

As soon as Debugger( ) is called from consinit( ), BOMB!

Any clues?

Thanks.