> with recent kernels I frequently see things like this:
> 
> 
> NetBSD/mac68k (se30) (tty00)
> 
> login: ncrscsi0 : Resetting SCSI-bus (Timeout waiting for phase-change)
> ncrscsi0 : Resetting SCSI-bus (Timeout waiting for phase-change)
Try increasing 'timeout' in the wait_req_*() functions in ncr5380.c. You
can multiply it by 10 or so. This won't hurt normal performance, it's only
a maximum.

[ .... ]
> 
> The Fujitsu MO spins down when it is not accessed for more than half an
> hour. When you wake it up it spins up -- this is transparent to the host or
> at least meant to be. The sleep/wake up mechanism works just fine under
> MacOS and it used to work under older kernels.
The older kernels didn't have that particular check. 

> 
> >From the sound that the MO makes I suppose it does not like being reset
> while spinning up: it restarts the spin-up just to be hit by the next scsi
> bus reset.
> 
> Any ideas anyone? Any timeout parameters I could play with?
Yes, see above.

Leo.