PH33127: DFHSJ0007 UNEXPECTED SIGNAL RECEIVED BY JVMSERVER AND CEE5207E THE SIGNAL SIGABRT WAS RECEIVED

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• JVMSERVER hangs. The CICS log permanently shows the message:
  
  DFHSJ0007 Unexpected signal received by JVMSERVER
  
  The Java Error Log JVMERR shows:
  
  CEE5207E The signal SIGABRT was received.
  
  Two system dumps were generated. The dump shows that a TCB
  suffered an 0C4 in DFHCDK64 shortly after NO_ADD_RECOV.
  
  This problem can only occur if SJ level 4 tracing is enabled.
  

Local fix

• No Local Fix.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS Users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: 'DFHSJ0007 UNEXPECTED SIGNAL RECEIVED   *
  *                      BY JVMSERVER' and 'CEE5207E THE SIGNAL  *
  *                      SIGABRT WAS RECEIVED' may be seen when  *
  *                      using a JVMSERVER with SJ level 4 trace *
  *                      enabled, when multiple threads end at   *
  *                      the same time.                          *
  ****************************************************************
  With SJ level 4 trace enabled, when a Java thread is signalled
  to end, trace point TID_SJSC_PTHREAD_EXIT (SJ 0D11) is output.
  However if multiple threads are ending at the same time, such as
  reducing JVMSERVER thread limit, or there are delays within the
  JVMSERVER, before the trace_put call for this point completes,
  the KTCB and associated control blocks including the TAS and
  TCA are freed. As as a result, if this occurs during the
  processing for the trace_put prior to the trace domain call
  errors can occur. This includes an 0C4 abend in DFHCDK64 when
  addressing the TCA, due to this being freed along with the KTCB.
  
  Due to these abends error messages:
   'DFHSJ0007 UNEXPECTED SIGNAL RECEIVED BY JVMSERVER'
  and
   'CEE5207E THE SIGNAL SIGABRT WAS RECEIVED'
  can be seen in the JVMSERVER and region message logs.
  

Problem conclusion

• The trace point SJ 0D11 has been removed.
  

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:

  UI76199 UI76200 UI76201 UI76202

Modules/Macros

• DFHSJSC  DFHSJT8  DFJ@H356 DFJ@H467 DFJ@H468
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R103 PSY UI76202

     UP21/07/08 P F107

• R10D PSY UI76201

     UP21/07/07 P F107

• R200 PSY UI76200

     UP21/07/07 P F107

• R300 PSY UI76199

     UP21/07/07 P F107

Fix is available

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