Programs may be hanging with the D flag set, even if they (HIGH)
don't do I/O at all. (ps, ...) User PTE problem?
950304/Ragge

Uba & devices should be converted to use new style config (MEDIUM)
instead of emulating it. MSCP routines should also be
fixed so that they can support both uda and kdb disks
as device ra?.
/Ragge