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PI91507: USING CICS WEB SUPPORT RECEIVES DFHAP0001 ABEND CODE 0C6/AKEA AT OFFSET X'FFFFFFFF' IN MODULE DFHWBBLI.

A fix is available

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APAR status

  • Closed as program error.

Error description

  • This problem only occurs in CICS for z/VSE 2.2 (430) as
    distributed with z/VSE 6.2
    
    DFHAP0001 Abend code 0C6/AKEA offset X'FFFFFFFF' in DFHWBBLI
    
    Each abend results in an ASRA transaction dump as well as the
    AP0001 dump. The type of program check can vary dependng on the
    failing PSW address and could also be 0C1 or 0C4.
    
    You might see a similar abend reported at offset x'FFFFFFFF' in
    DFHWBA.
    
    The problem can also affect the CICS Explorer.
    
    There might be subsequent abends in other modules and a PC0409
    abend that causes CICS to terminate.
    
    The problem only occurs when Monitoring is active in the system,
    i.e SIT MN=ON. This may be dynamically enabled by Vendor
    CICS Performance Monitors.
    
    Additional Symptom(s) Search Keyword(s): KIXREVxxx
    ap0001 abend0c1 abend0C4 abend0C6 msgDFHPC0409
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All CICS users.                              *
    ****************************************************************
    * PROBLEM DESCRIPTION: DFHAP0001 Abend code 0C6/AKEA at        *
    *                      offset X'FFFFFFFF' in module DFHWBBLI   *
    ****************************************************************
    This problem only occurs when CICS Monitoring in active. That
    is when DFHSIT MN=ON, or when it has been dynamically enabled
    by Vendor CICS monitoring software or by the customer.
    
    The abend occurs when using CICS Web Services or the CICS
    Explorer. The same problem may result in an 0C1/AKEA or
    0C4/AKEA abend.
    
    There might be subsequent abends in other modules, and
    possibly message DFHPC0409 and a PC0409 abend that results in
    CICS being terminated.
    
    DFHWBBLI incorrectly switches into 24-bit mode after a
    Monitoring domain call, and the program check is the result of
    a branch to a bad 24-bit address, hence the various types of
    program check that can occur.
    
    The DFHWBA module has the same problem and needs to be
    corrected.
    

Problem conclusion

  • DFHWBBLI and DFHWBA have been corrected to avoid switching
    into 24-bit mode.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI91507

  • Reported component name

    CICSTS FOR ZVSE

  • Reported component ID

    5655VSE00

  • Reported release

    B3P

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-12-13

  • Closed date

    2018-02-07

  • Last modified date

    2018-02-22

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

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

    UI53706

Modules/Macros

  • DFHWBA   DFHWBBLI
    

Fix information

  • Fixed component name

    CICSTS FOR ZVSE

  • Fixed component ID

    5655VSE00

Applicable component levels

  • RB3P PSY UI53706

       UP18/02/22 I 1000

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.

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Document Information

Modified date:
22 February 2018