PI13165: CICS TS 5.1 DFHPC0409 ABENDS AZTA AND AZTA HAVE BEEN ISSUED WHILE PROCESSING ABEND AZI3 FOR THE SAME TASK, TRANSACTION CEDF

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• You are running with CICS TS 51 and you are receiving the
  following message:
  DFHPC0409 ABENDS AZTA AND AZTA HAVE BEEN ISSUED WHILE
  PROCESSING ABEND AZI3 FOR THE SAME TASK, TRANSACTION CEDF.
  .
  The involved task is CEDF. The kernel error table shows multiple
  percolate abends starting with AZTS's, AZI3's, then AZTA's
  which causes a DFHPC0409 and CICS is terminated.
  .
  Further investigation, found that the trace shows data area 1
  is the parm list passed to DFHXMIQ. There is nothing in the word
  at +x'10'
  XM 1001 XMIQ ENTRY - FUNCTION()
               TASK-00086 KE_NUM-00F7 TCB-QR /008CE598
               RET-95CFB77A TIME-00:05:40.3246302846
               INTERVAL-00.0000004062
  1-0000 01100000 000000A1 00000000 00000000
         00000000 00000000 03000100 00000000
         <<<<<<<<
  XM 1002 XMIQ EXIT - FUNCTION()
          TASK-00086 KE_NUM-00F7 TCB-QR /008CE598
          RET-95CFB77A TIME-00:05:40.3246309721
          INTERVAL-00.0000006875
  1-0000  01100000 000000A1 00000000 00000000
          00000000 00000000 03000100 00000000
          <<<<<<<<
  The problem happen because REGISTER 2 and REGISTER 7 have been
  corrupted when the KERNEL has called DFHEDFP recovery routine at
  label ABNDHAND. Registers 2 and 7 are used as DFHEDFP base
  registers and address static storage.
  
  .
  In the expension of the DFHXMIQM macro, register 2 is used to
  set XMIQ_EXISTENCE bits which will be set incorrectly resulting
  in the terminal not being removed from the CEDF task.
  .
  
  Additional Symptom(s) Search Keyword(s): KIXREVACC DFHPC0409
  ABENDAZTS AZTS ABENDAZI3 AZI3 ABENDAZTA AZTA
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: DFHPC0409 abends AZTA and AZTA have     *
  *                      been issued processing abend AZI3       *
  *                      for the same task.                      *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The original problem was reported against CEDF in a TOR
  running a transaction in an AOR when the TOR used a non-zero
  RTIMEOUT value in single terminal mode.
  
  Exceeding the RTIMEOUT value results in an AZI3 abend in the
  AOR, and the recovery routine in DFHEDFP is entered. The
  addresses in registers 2 and 7 that are used to address
  storage are not valid, and when register 2 is used in a
  subsequent DFHXMIQM macro, the terminal is not removed
  from the CEDF task, which results in the AZTA abends, which
  in turn cause the PC0409 abend and the AOR is terminated.
  
  The CEDF session in the TOR shows an abend, but the TOR is
  not terminated.
  
  Additional keywords: MSGDFHPC0409 abendAEDG 030F SM0002
  msgDFHSM0002 PI18848
  

Problem conclusion

• DFHEDFP has been changed to correct the error in its recovery
  routine.
  

Temporary fix

• *********
              * HIPER *
              *********
  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:

  PI20398 UI19019

Modules/Macros

• DFHEDFP
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R800 PSY UI19019

     UP14/07/04 P F407 ½

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.