PH58302: ABENDASRA AND STORAGE VIOLATIONS IN EPUDSA AFTER UPGRADE TO CICSTS 6.1

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• After upgrading to CICS TS 6.1 the client encountered numerous
  abends (0C1 and 0C4) in programs that had been loaded in to
  EPUDSA storage.
  In addition storage violations
  were also seen for storage that had been allocated from EPUDSA.
  Messages seen were
  DFHSR0001 cicaplid abend (code 0C1/AKEA) has occurred at
  offset x'FFFFFFFF'
  DFHSM0102 cicaplid A storage violation (code X'0F0C') has been
  detected.
  Additional Symptoms and Keywords:
  Upgrade2CICS61 abend0c1 abend0c4 traniso kixrevdam
  

Local fix

• Correct application programs in error.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS Users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: After upgrading to CICS TS V6.1 various *
  *                      0C1, 0C4 and ASRA abends are observed.  *
  ****************************************************************
  After a CICS region has been upgraded to CICS TS V6.1 some
  COBOL applications start seeing 0C1 and 0C4 abends. The
  customers had transaction isolation active.
  The abends are occurring because one tasks working storage is
  being overlayed by another tasks working storage in the new
  unprotected DSAs, PUDSA and EPUDSA. The abends are occurring due
  to bad application logic. At lower releases of CICS, since
  TRANISO causes each transaction's storage areas to be allocated
  from 1 megabyte extents, such overlays were not apparent.
  LE (Language Environment) is requesting application working
  storage using a GETMAIN with the EXECUTABLE option so it needs
  to be obtained from an unprotected DSA.
  CICS TS 6.1 was changed to support IEP (Instruction Execution
  Protection) on z/OS 2.4 and above.
  
  Keywords: TRANISO com.ibm.cics.sm.iep
  

Problem conclusion

• CICS storage manager has been changed to only obtain storage
  from (E)PUDSA when TRANISO is off and the new feature toggle
  com.ibm.cics.sm.iep is true.
  

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:

  UI95828

Modules/Macros

• DFHSMDM  DFHSMMG
  

Fix information

• Fixed component name

  CICS TS Z/OS V6

• Fixed component ID

  5655YA100

Applicable component levels

• R400 PSY UI95828

     UP24/03/02 P F403 ¢

Fix is available

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