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PH38790: ABEND S0C4 IN CICS DLA MODULES (EYU9XDDA & EYU9AB00)

A fix is available

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APAR status

  • Closed as program error.

Error description

  • Discovery Library Adaptor ABEND S0C4 IN EYU9XDDA AT OFFSET 13CA
    AND IN EYU0ABI0 AT OFFSET 4CC
    

Local fix

  • N/A
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of CICSPlex SM                     *
    *                 Discovery Library Adaptor                    *
    ****************************************************************
    * PROBLEM DESCRIPTION: Abend S0C4 at EYU9XDDA+13CA or          *
    *                      EYU0ABI0+4cc. Location is dependent on  *
    *                      the data being processed.               *
    ****************************************************************
    This APAR fixes 2 distinct problems.
    
    1) EYU9XDDA maintains a list of message buffers to be written
    to the output data set at various points in the run. It
    maintains a pointer to the last message. When the message
    buffers are freed this pointer is not reset and can result in
    the program accessing storage it does not own.
    This can have various consequences such as S0C4 abends.
    
    2) When EYU9XDDA encounters an error on a CPSM API command it
    issues an EXEC CPSM FEEDBACK to give more information about the
    error. Unfortunately it does not acquire storage for the
    FEEDBACK output, resulting in an S0C4-4 in EYU0ABI0 attempting
    to write to low storage.
    
    Additional Keywords abend0C4 abendS0C4
    

Problem conclusion

  • EYU9XDDA has been modified to correctly clear last message
    storage pointer when the storage it points to is released.
    EYU9XDDA will acquire storage for the FEEDBACK command output
    if required.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PH38790

  • Reported component name

    CICS TS Z/OS V5

  • Reported component ID

    5655Y0400

  • Reported release

    30M

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2021-07-08

  • Closed date

    2021-07-21

  • Last modified date

    2021-08-09

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

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

    UI76388

Modules/Macros

  • EYU9XDDA
    

Fix information

  • Fixed component name

    CICS TS Z/OS V5

  • Fixed component ID

    5655Y0400

Applicable component levels

  • R30M PSY UI76388

       UP21/07/24 P F107

Fix is available

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Document Information

Modified date:
10 August 2021