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PM95841: DFHIS0002 A SEVERE ERROR (CODE X'0812') IN MODULE DFHISAL

A fix is available

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APAR status

  • Closed as program error.

Error description

  • The following Messages occur for IPIC Connections:
    .
    DFHIS0002 A SEVERE ERROR (CODE X'0812') HAS OCCURRED
    IN MODULE DFHISAL
    .
    DFHSO0002  A SEVERE ERROR (CODE X'029F') HAS OCCURRE
    D IN MODULE DFHSOCK.
    .
    Task CISS (IPIC acquire IPCONN on the server side of a
    connection) allocates an ISSB (IS DOMAIN IPCONN Control Block)
    and get's suspended.  While suspended another Task CISE (IPIC
    error and message program) comes along using the same session
    as the CISS Task and FREE's the ISSB and CLOSES the IPCONN.
    Task CISS wakes up and attempts to FREE the ISSB but it has
    already been FREEd.
    .
    In this case, the reason why the CISE task ran for that IPCONN
    is because a NOTIFY for DATA was received with no data to
    receive.  The SOCKET domain interpret's that a the SOCKET has
    been closed an the primary CLIENT ISSS (IS DOMAIN SERVER
    SESSION SET Control Block) is queued for CISE processing with
    an error code of x'0609'.  In the mean time CISS task which is
    using the secondary CLIENT ISSS send a CAPEX response to the
    CLIENT, issued message DFHIS2001 and then attempts to  FREE the
    ISSB. This is where the DFHIS0002 is issued.
    .
    
    Additional Symptom(s) Search Keyword(s): KIXREVDAM
    

Local fix

  • n/a
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All CICS users.                              *
    ****************************************************************
    * PROBLEM DESCRIPTION: DFHIS0002 is issued when CICS           *
    *                      handles the CAPEX request from          *
    *                      CICS TG to initialize an IPCONN.        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    A CAPEX request is received in CICS from CICS TG to initialize
    an IPCONN. CISS task is attached to process this request and
    then send a CAPEX response back to CICS TG. Before sending
    the CAPEX response, an ISSB is allocated but the field
    ISSB_TRAN_NUMBER is set to null.
    
    During sending the CAPEX response, a socket error is received.
    Accordingly, CISE task is resumed to handle this error. During
    CISE, the ISSB which is allocated in CISS task is freed because
    the ISSB_TRAN_NUMBER is null.
    
    Then CISS task get running again. After sending the CAPEX
    response, it tries to free the ISSB which is already freed in
    CISE. That causes DFHIS0002 with a system dump being issued.
    
    Additional Keywords : msgDFHIS0002   IS0002
    

Problem conclusion

  • DFHISCO has been changed to make sure the ISSB is freed
    in CISS task.
    

Temporary fix

  • FIX AVAILABLE BY PTF ONLY
    

Comments

APAR Information

  • APAR number

    PM95841

  • Reported component name

    CICS TS Z/OS V5

  • Reported component ID

    5655Y0400

  • Reported release

    800

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-08-26

  • Closed date

    2013-10-28

  • Last modified date

    2015-03-05

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

    PM93827

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

    UI12010

Modules/Macros

  • DFHISCO
    

Fix information

  • Fixed component name

    CICS TS Z/OS V5

  • Fixed component ID

    5655Y0400

Applicable component levels

  • R800 PSY UI12010

       UP13/11/07 P F311

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:
05 March 2015