Hi Markus,

you wrote in <9503271525.AA17261@jade.techfak.uni-bielefeld.de>:
> NetBSD 1.0 Amiga does not support SCSI disconnect and reselection,

Correct.

> this makes the CPU horribly busy during any access of the SCSI-Bus.

Wrong, the CPU isn't busy. But the system idle in kernel state until
the SCSI command is finished.

Anyway, the result is the same: the system is not usable at that time.

-- 
Matthias Scheler
tron@lyssa.owl.de