> I am following this thread for a while now. I used to run NetBSD-1.0 and
> NetBSD-1.1 on an AMIGA4000 which displayed the same problems as
> discribed here until Markus Wild introduced a patch, which I believe
> is now being implemented into the source tree. Since then I never had
> any problems with buffer overflows etc. at speeds of 57.6Kbd.

 Please note that the Amiga has no custom chip for the serial line.
The line is integrated into one of the other Amiga custom chips and
has no FIFO, just one Byte of buffer. We had to alter the entire 
interupt handling to speed up the serial line.

-- 
Markus Illenseer