DB2 EEE on AIX 5.2

Got this in the db2diag.log and don't understand what it means:

2006-05-01-07.54.50.128193 Instance:arcprodb Node:002
PID:81982(db2agntp (ARCPRODB) 2) Appid:*N0.arcprodb.060501112826
index_manager sqlis_do_line_fit Probe:1472 Database:ARCPRODB
DIA2900I A mathematical overflow, underflow or zero divide has occurred

Any help would be appreciated

Mark

Do you know what caused this ?

I would recommend raising a PMR

Sathyaram