PH68436: ABEND 0C4/AKEA AT OFFSET X'FFFF' IN MODULE DFHSOSE DURING INITIALIZATION

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• A CICS 6.2 region was getting an abend 0C4/AKEA at offset
  X'FFFF' in module DFHSOSE. The problem did happen at a very
  early stage of the initialisation, when module CSFINLP2 + X'52E'
  has called into DFHEIP.
  
  DFHEIP has suffered an 0C4 because the EXEC CICS call was made
  on the SO TCB which is not enabled for EXEC CICS calls.
  
  Based on the ICSF support response it was determined that the
  system must have CICSAUDIT(YES) set in their ICSF options. That
  setting is going to cause the CSFIQF2 call that CICS makes on
  the SO TCB to invoke the ISCF TRUE. The TRUE makes EXEC CICS
  calls, which are never going to work on the SO TCB. CICS can't
  prevent customers from using CICSAUDIT(YES) so CICS needs to do
  something different to avoid this problem.
  

Local fix

• Not Available
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: ABEND0C4/AKEA at offset X'FFFF' in      *
  *                      module DFHSOSE During CICS startup.     *
  ****************************************************************
  CICS suffers an 0C4 abend, reported at offset X'FFFF' in
  DFHSOSE.
  Examination of a dump taken for the abend shows that
  CICS has called the ICSF service routine CSFIQF2 which then
  caused the ICSF Task Related User Exit (TRUE) named CSFATRUE
  to call into DFHEIP while running on the SO TCB.
  DFHEIP is unable to process calls on the SO TCB and therefore
  abends.
  

Problem conclusion

• CICS has been changed to avoid calling the ICSF service
  routine CSFIQF2 when determining whether ICSF is active or not.
  

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:

  UO05855 UO05856

Modules/Macros

• DFHSOSE
  

Fix information

• Fixed component name

  CICS TS Z/OS V6

• Fixed component ID

  5655YA100

Applicable component levels

• R500 PSY UO05856

     UP25/11/20 P F511

• R600 PSY UO05855

     UP25/11/20 P F511

Fix is available

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