PH28430: CEDF ABENDS WITH 0C4 AT OFFSET 380 OR 37A IN MODULE DFHEDFP.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Message received;
  DFHAP0001 <APPLID> An abend (code 0C4/AKEA)
  has occurred at offset X'00000380' in module DFHEDFP.
  
  The failing transaction is CEDF.
  
  The failing instruction in this case is a ZAP(Zero and Add)
  instruction:
  
  F832 6154 4009       ZAP 340(4,R6),9(3,R4)
  
  R6 does not contain a valid address which is what causes the
  program check. R6 is derived from R3 which is pointing to a
  TSIOA, and this area is being used to get the debug linkage
  area address, and causes the program check.
  
  In the trace we see that CEDF was started by transaction CSKL
  and passed a FROM area. This is unexpected, as CEDF is typically
  terminal initiated.
  
  With EI 2 tracing on this can be seen in the trace;
  
  00084 QR AP E160 EXEC ENTRY START TRANSID('CEDF' AT X'2CFBF32C')
                   INTERVAL(0 AT X'2CFBF323') FROM
  
  Task# 00084 is CSKL:
  
  0126 ***Running** 00084 CSKL EZACIC02 n/a
  
  If no FROM area is passed, an AEDA abend is encountered versus
  the 0C4.
  
  Note the offset into DFHEDFP can be 37A or 380 depending
  on the FROM data passed to CEDF.
  
  Additional symptoms:
  KIXREVSCB
  abend0c4
  ap0001
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: ASRA abend / 0C4 program check raised   *
  *                      when CEDF is STARTed with FROM data     *
  ****************************************************************
  Attempting to START CEDF with FROM data results in an ASRA abend
  / 0C4 program check, and this message:
  
  DFHDU0203I 10/08/2020 14:17:59 applid A transaction dump was
  taken for dumpcode: ASRA, Dumpid: 1/0003, Tranid: CEDF, Tranum:
  00000066, Program: DFHEDFP.
  
  Usually CEDF is terminal-initiated and starting CEDF in this way
  is documented as invalid.
  
  If an attempt to START CEDF without FROM data is made, then the
  result is an AEDA abend, and the message:
  
  DFHDU0203I 10/08/2020 14:16:04 applid A transaction dump was
  taken for dumpcode: AEDA, Dumpid: 1/0001, Tranid: CEDF, Tranum:
  00000062, Program: DFHEDFP.
  
  Keywords: abendASRA, abendAEDA.
  

Problem conclusion

• DFHEDFP has been changed to ensure that invalid requests to
  START CEDF are rejected with an AEDA abend, rather than an ASRA
  abend.
  

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:

  UI72358 UI72359 UI72360

Modules/Macros

• DFHEDFP
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R100 PSY UI72360

     UP20/11/03 P F011

• R200 PSY UI72359

     UP20/11/03 P F011

• R300 PSY UI72358

     UP20/11/03 P F011

Fix is available

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