IRIX 3.3.2 + 8 bitplanes -> ERROR #110 overlay: ...

[Arie Rudich]

Since we installed IRIX 3.3.2 we get the following error message
on our 4D-20G 8 bitplanes stations:
  Mar 10 12:25:30 isolde grcond[524]: CIO: ERROR #110  overlay:
    not enough bitplanes for overlay(2).: ERR_INVALIDVALUE

and soon afterwards the station freezes, and must be reset.
Clearly the machines do not have overlay planes, so why request them and
 freeze?

Has anyone seen this kind of problem? How should we avoid it?

Regards,
        Arie Rudich
        Center for Intelligent Systems
        Technion, ISRAEL