> 
> I have captured my drop into debug mode:
> the console says:
> gorais>Panic uba sero entry
> kernel debug cod=0
> stopped at 0x8006c0a7
> 
This is a (very common) bug, often showed up in old kernels (pre-1.1).
It is caused by DMA to user space to pages that has not been mapped.
This was fixed around 1.1, and do not exists i later kernels.

-- Ragge