My SWAG is that there is a problem with serializing the addition and/or deletion of entries in the FIFO queue. I.e. two different CPUs are trying to add (maybe delete) a FIFO entry and one CPUs update is "lost". Without looking at code, this is just a guess.
Question... We use PLO to serialize. Is there another layer of control to handle multiple CPs? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
