system abend completion code, 5C6, abend, internal error, 6C6, severe error, subsystem termination, abnormal termination, subsystem action, diagnostic information, 5C6 abend, 6C6 abend, associated reason codes, associated with subsystem abend, reason code" /> WebSphere MQ for z/OS abends

 

WebSphere MQ for z/OS abends

WebSphere MQ for z/OS uses two system abend completion codes, X'5C6' and X'6C6'. These codes identify:

X'5C6'

An X'5C6' abend completion code indicates that WebSphere MQ has detected an internal error and has terminated an internal task (TCB) or a user-connected task abnormally. Errors associated with a X'5C6' abend completion code might be preceded by a z/OS system code, or by internal errors.

Examine the diagnostic material generated by the X'5C6' abend to determine the source of the error that actually resulted in a subsequent task or subsystem termination.

X'6C6'

An X'6C6' abend completion code indicates that WebSphere MQ has detected a severe error and has terminated the queue manager abnormally. When a X'6C6' is issued, WebSphere MQ has determined that continued operation could result in the loss of data integrity. Errors associated with a X'6C6' abend completion code might be preceded by a z/OS system error, one or more X'5C6' abend completion codes, or by error message CSQV086E indicating abnormal termination of WebSphere MQ.

Table 4 summarizes the actions and diagnostic information available to WebSphere MQ for z/OS when these abend completion codes are issued. Different pieces of this information are relevant in different error situations. The information produced for a given error depends upon the specific problem. The z/OS services that provide diagnostic information are discussed in WebSphere MQ for z/OS diagnostic information.

Table 4. Abend completion codes
X'5C6' X'6C6'
Explanation

  • Error during WebSphere MQ normal operation

  • Severe error; continued operation might jeopardize data integrity

System action

  • Internal WebSphere MQ task is abended

  • Connected user task is abended

  • The entire WebSphere MQ subsystem is abended

  • User task with an active WebSphere MQ connection might be abnormally terminated with a X'6C6' code

  • Possible MEMTERM (memory termination) of connected allied address space

Diagnostic information

  • SVC dump

  • SYS1.LOGREC entry

  • VRA data entries

  • SYS1.LOGREC

  • VRA data entries

Associated reason codes

  • WebSphere MQ abend reason code

  • Associated z/OS system codes

  • Subsystem termination reason code

  • z/OS system completion codes and X'5C6' codes that precede the X'6C6' abend

Location of accompanying codes

  • SVC dump title

  • Message CSQW050I

  • Register 15 of SDWA section 'General Purpose Registers at Time of Error'

  • SYS1.LOGREC entries

  • VRA data entries

  • SYS1.LOGREC

  • VRA data entries

  • Message CSQV086E, which is sent to z/OS system operator