powerPC floating point underflow

[ktsubota@keck.hawaii.edu (Kevin Tsubota)]

Hi,

I'm running EPICS R3.13 Beta12 on a Motorola mv1604 and get
the following error and am forced to reboot my system:
 
> Floating point underflow
> Floating point inexact
> Exception current instruction address: 0x01a9dc94
> Machine Status Register: 0x0010b130
> Condition Register: 0x42000040
> Fp Control and Status Register: 0xca008070
> Task: 0x1317318 "CA client"
> filename="../taskwd.c" line number=175
> task 1317318 CA client suspended

I'm using a sequencer to control PMAC devices through 
Tom Coleman / Andy Foster's PMAC device driver.

Has anyone else seen this error and is it possible to disable it?

Thanks in advance.

Kevin Tsubota