PI30941: AN FFDC REPORTING A CTX4SWCH RC=368 IS GENERATED DURING SERVER SHUTDOWN.

8.5.5.4: WebSphere Application Server V8.5.5 Fix Pack 4
8.5.5.5: WebSphere Application Server V8.5.5 Fix Pack 5
8.5.5.6: WebSphere Application Server V8.5.5 Fix Pack 6
8.5.5.7: WebSphere Application Server V8.5.5 Fix Pack 7
8.5.5.8: WebSphere Application Server V8.5.5 Fix Pack 8
8.5.5.9: WebSphere Application Server V8.5.5 Fix Pack 9
8.5.5.10: WebSphere Application Server V8.5.5 Fix Pack 10
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
Copy of: 8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16
8.5.5.21: WebSphere Application Server V8.5.5.21

APAR status

• Closed as program error.

Error description

• An FFDC is generated during thread termination while the
  server is shutting down.
  The FFDC reports that the context switch (CTX4SWCH) attempt
  to switch a native context on the terminating thread failed
  with return code 368.
  The FFDC shows:
  java.lang.RuntimeException: The attempt to switch a native
  context on terminating thread: xxxxxxxx failed.
  SwitchContextReturnType [ReturnCode: 368, OldContextToken:
  null]
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server Liberty Profile on z/OS              *
  ****************************************************************
  * PROBLEM DESCRIPTION: An FFDC log reporting a CTX4SWCH RC=368 *
  *                      is generated during server shutdown.    *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  An FFDC log is generated during thread termination while the
  server is shutting down. The FFDC reports that the a call to
  Resource and Recovery Services' CTX4SWCH service failed with
  return code 368. The error took place due to an attempt by the
  transaction manager to switch a native context on a terminating
  thread that already had an associated native context.
  The FFDC log shows the following exception:
  java.lang.RuntimeException: The attempt to switch a native
  context on terminating thread: xxxxxxxx failed.
  SwitchContextReturnType [ReturnCode: 368, OldContextToken:
  null]
  at
  com.ibm.ws.zos.tx.internal.ContextManagerImpl.threadTerminating(
  ContextManagerImpl.java:692)
  at
  com.ibm.ws.zos.core.thread.internal.ThreadTracker.threadTerminat
  ing(ThreadTracker.java:101)
  

Problem conclusion

• Code was added to fix the condition that caused the FFDC log to
  be generated.
  The fix for this APAR is currently targeted for inclusion in fix
  pack 8.5.5.4.  Please refer to the Recommended Updates page for
  delivery information:
  http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  LIBERTY - Z/OS

• Fixed component ID

  5655W6514

Applicable component levels

• R850 PSY

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