IZ95420: ABEND ON SHUTDOWN RELATED TO DAEMON THREADS

APAR status

• Closed as program error.

Error description

• Error Message: zOS throws 0C4 during shutdown resulting in an
  ABEND on zOS when using zWAS
  .
  Stack Trace: masterSynchSignalHandler+0x841d75b0
  (0x0000000000000000)
     (0x0000000000000000)
     __zerros+0xec8dd068 (0x0000000000000000)
     CEEHDSP+0xecd20b70 (0x0000000000000000)
     CEEOSIGJ+0xecad8490 (0x0000000000000000)
     CELQHROD+0xecd0de28 (0x0000000000000000)
     CEEOSIGG+0xecadede0 (0x0000000000000000)
     CELQHROD+0xecd0de28 (0x0000000000000000)
     jitWalkStackFrames+0x843dc6b0 (0x0000000000000000)
     walkStackFrames+0x83f62b68 (0x0000000000000000)
    ...
  .
  N/a
  

Local fix

• N/a
  

Problem summary

• The problem is caused due to daemon threads continuing to
  execute after the JVM has shutdown
  

Problem conclusion

• This defect will be fixed in:
  6.0.0 SR9
  5.0.0 SR12 FP5
  .
  Prior to exit the VM will force all daemon threads to a safe
  point to avoid the crash
  .
  To obtain the fix:
  Install build 20110132 or later
  

Temporary fix

Comments

APAR Information

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

  IZ95419

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

Fix information

• Fixed component name

  JAVA 5 J9 COMMO

• Fixed component ID

  620500127

Applicable component levels

• R500 PSN

     UP