>>>    But the sun4m port is actively being worked on and there has been some
>>>    substantial progress over the past few months.
> 
>>   Out of interest ... What exactly have been proven to be the problems with
>>   porting NetBSD (or Mach or any other O/S) to sun4m?
> 
> At the very least, non-availability of documentation.  Also the
> non-disclosured nature of the sun4m architecture specification,
> although most of what is in there can be easily reverse engineered and
> learned through trial and error but this takes time.

Not to ask the obvious, but ...

Has anybody thought of cobbling up $350 and getting the Plan 9 CD-ROM, to see
what Rob Pike et al. did about this same problem?  (I know I've seen Charles
post to 9fans ... )  Since those bits are quasi-free, one could conceivably
learn from what they've done.

	- Greg