Re: Frustrated NetBSD 1.3/Amiga user

[Ignatios Souvatzis <is%jocelyn.rhein.de@localhost>]

> 
> Hi!
> 
> > "We", for a set of people you might expect an answer from, know that there's
> > a problem, and even have a good hint what the problem is.
> 
> It's great to hear, that at least it has been accepted, that there *is*
> a problem. Can anybody of "us", who own Ariadnes, do anything to help
> "you"?
> 
> BTW: I remember the question if I was using my ethernet card via BNC
> or TP. Is this part of the problem? In other words: Are there no
> problems when using the TP connection?

AFAIK, none.

Actually, I've run my DraCo as a gateway between TP Ethernet and
ARCnet for a weekend, routing MBONE for extended time, with an Ariadne. 

I guess I would have noticed TP-specific stuff.

No, as I understand, the Ariadne may only be accessed 16 bits at a time, 
and the buffer end rounding code is broken in a way that it might cross page
boundaries at the beginning or end of a mbuf segment. Now, if that mbuf happens 
to be at the exact end of a mapped kernel address space segment, you have a
problem.

The hackaround is a bit tricky, because you also want it to not cross the lower
page boundary, to be on the safe side.

        -is