PM33651: DFHAP0001 AN ABEND (CODE 0C8/AKEA) HAS OCCURRED AT OFFSET X'000004D0' IN MODULE DFHFCN

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• One of your files has been set to UNENABLED status after an
  ABEND 0C8/AKEA in modules DFHFCN.
  Reviewing the regions Joblog you see the following messages:
  
  
  DFHAP0001 An abend (code 0C8/AKEA) has occurred at offset
  X'00004DF0' in module DFHFCN
  
  DFHFC0001 An abend (code ---/ASRA) has occurred at offset
  X'60EE' in module DFHFCFS
  
  Investigation into the 0C8/AKEA shows the failing instruction
  in DFHCFN at offset x'4DF0', is 5B20 803C (S     R2,FCTDSXCP ).
  
  Reg2 contains the the SHOWCB NEXCP field. Reg8+3C (7FFFFFFF)
  field FCTDSXCP, is subtracted from Reg2 (000009C2) which causes
  the failure.
  
  Further review of the Joblog shows this file has been open for
  a long time. And the number of EXCPs against it are very high.
  As a result, this causes DFHFCFS to suffer the 0C8 when it
  attempted to perform the subtract instruction.
  
  Additional Symptom(s) Search Keyword(s):
  FCFS S0C8 0c8 FCN AP0001 FC0001
  KIXREVJXD
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All                                          *
  ****************************************************************
  * PROBLEM DESCRIPTION: Module DFHFCN may ABEND 0C8 Fixed-Point *
  *                      Overflow Exception during open / close  *
  *                      processing.                             *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  An ABEND 0C8 occurs during open / close processing by module
  DFHFCN when a subtraction used to obtain file statistics
  overflows if the Fixed-Point Overflow Program Mask is set on
  in the PSW.
  

Problem conclusion

• DFHFCN has been changed to correctly perform statistics
  collection for a file without resulting in an ABEND 0C8.
  
  Keywords:
  0C8/AKEA 0C8 Fixed-point-overflow
  

Temporary fix

• FIX AVAILABLE BY PTF ONLY
  

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UK67845

Modules/Macros

•    DFHFCN   DFHFCNC
  

Fix information

• Fixed component name

  CICS TS Z/OS V4

• Fixed component ID

  5655S9700

Applicable component levels

• R600 PSY UK67845

     UP11/05/21 P F105

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.