Processor Halt Codes Manual

Effect
The processor halts. The rest of the system is not affected.
Recovery
Take a memory dump of the affected processor, collect the required information, and contact
the Tandem NonStop Support Center (TNSC).
%003017
Cause
A bad process segment table (PST) entry led to an attempt to deallocate a segment that does
not exist.
Effect
The processor halts. The rest of the system is not affected.
Recovery
Refer to Processor Halt Monitoring and Recovery (page 10). Take a memory dump and contact
your service provider or the Global NonStop Solution Center (GNSC), as directed by your local
operating procedures.
%003020
Cause
An invalid page fault occurred, probably in maps 6 through 14 or in the upper half of map 15.
Effect
The processor halts. The rest of the system is not affected.
Recovery
Take a memory dump of the affected processor, collect the required information, and contact
the Tandem NonStop Support Center (TNSC).
%003021
Cause
This halt has several possible causes:
• A process with a priority higher than that of the memory manager got a page fault.
• Numerous retryable hardware errors occurred during a processor switch.
• A page fault occurred under one of the following conditions:
An interrupt handler was executing.◦
◦ Mutual exclusion was on.
◦ No process was running.
◦ The current process prohibited page faults.
Effect
The processor halts. The rest of the system is not affected.
Recovery
Refer to Processor Halt Monitoring and Recovery (page 10). Take a memory dump and contact
your service provider or the Global NonStop Solution Center (GNSC), as directed by your local
operating procedures.
%003023
130 Software Halt Code Descriptions