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PH69684: CICS FAILS TO OPERATE AFTER ABEND 0C6/AKEA IN MODULE DFHDBAT

A fix is available

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APAR status

  • Closed as program error.

Error description

  • A task encountered a transaction abend ADCI while using the
    DBCTL interface. During the subsequent backout processing for
    this task, an abend 0C6/AKEA occurred, causing the CICS region
    to stop functioning properly. The region had to be cancelled and
    restarted to resolve the issue.
    
    This problem began occurring after the migration to CICS 6.2.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All CICS Users.                              *
    ****************************************************************
    * PROBLEM DESCRIPTION: While CICS is processing an abendADCI,  *
    *                      CICS abends with code 0C6/AKEA at       *
    *                      offset X'FFFFFFFF' in module DFHDBAT.   *
    ****************************************************************
    When CICS is processing an ADCI abend due to IMS returning a
    user abend 3303 response, for a DL/I request issued from an
    application program, CICS issues the following two messages.
    
    DFHAP0707 <applid> An abend (code 0C6/AKEA) has occurred in
    task related user exit program DFHDBAT.
    DFHAP0001 <applid> An abend (code 0C6/AKEA) has occurred at
    offset X'FFFFFFFF' in module DFHDBAT.
    
    The AP0001 message will result in a system dump.
    
    While CICS was processing the ADCI abend, a branch return
    address was corrupted resulting in CICS branching to address
    X'0000030B' incorrectly.
    

Problem conclusion

  • DFHDBAT has been altered to ensure the branch return address is
    saved and restored correctly.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PH69684

  • Reported component name

    CICS TS Z/OS V6

  • Reported component ID

    5655YA100

  • Reported release

    500

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2026-01-15

  • Closed date

    2026-05-29

  • Last modified date

    2026-06-01

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

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

    UO08055 UO08058

Modules/Macros

  • DFHDBAT
    

Fix information

  • Fixed component name

    CICS TS Z/OS V6

  • Fixed component ID

    5655YA100

Applicable component levels

  • R500 PSY UO08058

       UP26/05/30 P F605 ¢

  • R600 PSY UO08055

       UP26/05/30 P F605 ¢

Fix is available

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Document Information

Modified date:
01 June 2026