PH40267: CICS REGION TERMINATES AT STARTUP DFHSR0601 PROGRAM CHECK OCCURRED WITH TCP IN CONTROL PROCESSING SIMLOGON

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• You are running CICS TS 5.6 and the region crashes at
  startup with the following messages:
  
  DFHSJ0102I applid  SJ domain initialization has ended.
  DFHSR0601  applid  Program interrupt occurred with system
                     task TCP in control.
  DFHKE1800  applid  ABNORMAL TERMINATION OF CICS IS COMPLETE.
  
  Reviewing the dump shows the TCP task has called VTAM to
  process a simlogon- module DFHZSIM.
  TCP uses the CSA's Register Save Area, as R13 when calling
  VTAM. The program check occurs when VTAM is attempting to
  give control back to us.
  Module ISTAICIR branches to the 24 bit R14 address
  from the CSA RSA, which is not a valid address, causing
  the ABEND0C4.
  
  The 31 bit address in R14 from the savearea in the CSA
  actually pointed to another CICS module- DFHQRCPU.
  
  Another CICS transaction- CQRC - which processes the
  QR TCB CPU/Disp ratio, was executing on an open TCB, is
  incorrectly using the savearea in the CSA, causing this
  timing issue and program check in TCP.
  Additional symptoms: KIXREVDAM
  CSTP CSZOSRSA CSAOSRSA
  DFHDS0104 I The INITPARM value specified for module DFHQRCPU
              is zero. DFHDS0102 messages will not be issued.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS Users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: When attempting to suppress message     *
  *                      DFHDS0102 by coding SIT parameter       *
  *                      DFHQRCPU='00' CICS may fail to          *
  *                      initialise.                             *
  ****************************************************************
  * RECOMMENDATION: Do not attempt to suppress message           *
  *                 DFHDS0102 unless absolutely necessary.       *
  ****************************************************************
  CICS may fail to initialise when a user attempts to suppress
  message DFHDS0102.
  

Problem conclusion

• Code has been added to prevent the failure.
  

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:

Modules/Macros

• DFHMEDSC DFHMEDSE DFHMEDSK DFHQRCPU
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R300 PSY UI77391

     UP21/10/01 P F109 ¢

Fix is available

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