PH28987: OPENING A FILE YOU RECEIVE AN ABEND 913-38 FOLLOWED BY DFHFC0001 ABEND 0C4 AKEA IN OFFSET X'FFFF' IN DFHFCFS

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• You are running CICS TS 5.4 and open a file you are
  not authorized to- issuing:
   CEMT SET FIlE(XXXXXXX) OPEN ENABLED
  You receive an ABEND 913-38 and the following message:
  
  IEC150I 913-38,IFG0194E,jobname,XXXXXXX,ddname
  
  Here are the associated CICS messages:
  DFHAP0001 An abend (code 913/AKEX) has occurred at
            offset X'FFFFFFFF' in module DFHFCN
  DFHFC0001 An abend (code ---/ASRB) has occurred at
            offset X'987C' in module DFHFCFS.
  DFHFC0001 An abend (code 0C4/AKEA) has occurred at
            offset X'FFFF' in module DFHFCFS.
  
  The 0C4 program check actually occurred at offset x'11E'
  in DFHFCN, ptf level UI63740. In the CLEANUP routine
  in DFHFCFS.
  The failing instruction is a Store:
    E3E0 C0A0 0024 | STG     R14,X'A0'(,R12)
  
  Trying to store into R12, which contains 00000001, causing
  the program check.
  R12 is supposed to point to the Task Control Block - or TCA.
  Somehow it was not restored properly in the recovery
  routines.
  
  Additional Symptoms: KIXREVRJL
  ABEND213 213 ABEND913 ABEND0C4 AKEX ASRB
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: CICS issued a 0C4 program check at      *
  *                      offset 0x11E in DFHFCN while            *
  *                      performing a CEMT SET ([FILE]) OPEN     *
  *                      ENABLED on a file lacking authority.    *
  ****************************************************************
  Performing a CEMT SET ([FILENAME]) OPEN ENABLED on a file that
  lacks authority can result in CICS raising a 0C4 program check
  within DFHFCN.
  
  In this scenario DFHFCFS calls DFHFCN twice. Firstly to attempt
  the OPEN and ENABLE of the file via a SVC 19 and,
  secondly, as it attempts to perform clean-up after a failed OPEN
  and ENABLE. It is during this clean-up that the 0C4 program
  check is raised.
  
  During clean-up it was found that DFHFCN expects to find the TCA
  in R12 but this has not been re-established by CICS prior to the
  second call to DFHFCN.
  
  Keywords: abend0C1, abend0C4, abend913, file control, FCFSREC,
  msgIEC150I
  

Problem conclusion

• The recovery routine of DFHFCFS (FCFSREC) has been updated so
  that the TCA is re-established in R12 just prior to any second
  call to DFHFCN, to perform clean-up. This will avoid the 0C4
  program check and, instead, a DFHAC2206 message and AEXZ abend
  will present.
  

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:

  UI73398 UI73399 UI73400

Modules/Macros

• DFHFCFS
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R100 PSY UI73400

     UP21/01/09 P F101

• R200 PSY UI73399

     UP21/01/09 P F101

• R300 PSY UI73398

     UP21/01/09 P F101

Fix is available

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