4.3 and TU81

[ted at BRAGGVAX.arpa]

Does anyone know if the tmscp driver distributed in 4.3 really works?
We tried to bring up a TU81 recently and found that we could read the drive
ok (based on a sketchy test) but that trying to write to it produced lots
of unibus errors.  Going multi-user with the drive configured into the
kernel proved impossible, we started getting unibus errors even when no
one was accessing it (started as the /etc/rc* files ran).  The fact that
there is no support in MAKEDEV for the tmscp drives makes me rather
suspicious.

Any experiences anyone has had would be welcomed.  Please reply directly
to me (as well as to the list if you think interest is general); for some
reason I am having a hard time getting on this list.

				Thanks

				Ted Nolan
				ted at braggvax.arpa