> 
> > > nubus0 on mainbus0
> > > 
> > > just before it switched to the root partition.
> > > 
> > > netbsd 1.2, stardard greneric kernal,mac II workstation vidio card,
> > 
> > I've never heard of this video card.
> >
> It's not on the FAQ list either. It's for a 21" grayscale apple monitor.
> I can run it in 1 or 2 bit mode.
> Strange thing is this problem appears to be
> video non-related, as it crashes at the same place when I boot from a 
> serial console.

It might be some sort of nubus interrupt related problem, though.
If you can, borrow a different card and see what it does.

Take care,

Bill