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PK78051: DFHRZ0001 0C4 IN DFHRZTA OFFSET X'2EF6' SOS

A fix is available

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APAR status

  • Closed as unreproducible in next release.

Error description

  • You receive an SOS above the line followed by a series of
    abends. The first abend is DFHRZ0001,
    DFHRZ0001 An abend (code 0C4/AKEA) has occurred at
    offset X'2EF6' in module DFHRZTA.
    The function takes place in rzrs_move_bytes_proc. Prior to
    that, the code obtains the storage for the data area.
    Due to the system being SOS, the storage allocation fails
    and a null pointer is returned. This failure condition is not
    checked, and leads to abend0c4 when an attempt to move
    data to the area addressed by the invalid pointer.
    The issue is similar to PK62944.
    Additional Symptom(s) Search Keyword(s): KIXREVSCB
    DFHSM0133
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All.                                         *
    ****************************************************************
    * PROBLEM DESCRIPTION: ABEND0C4 during Request Streams         *
    *                      processing.                             *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    The CICS system is under storage stress and has entered an SOS
    state several times. During this period a Webservice that
    requires the use of Request Streams to communicate between tasks
    or systems is running. DFHRZTA in procedure
    rzrs_send_reply_part requests storage for various control and
    data areas but due to the system being storage constrained one
    of the getmains fails and a null pointer is returned. As there
    is no check for this condition, when an attempt is made to move
    data to the area addressed by the invalid pointer an ABEND0C4
    occurs.
    
    Additional Keywords: FINFIX PK62944 RZSVHEAD RZSVDATA RZSVAREA
    MSGDFHRZ0001 short on storage
    

Problem conclusion

Temporary fix

  • FIX AVAILABLE BY PTF ONLY
    

Comments

  • Module DFHRZTA has been amended to check the return code from
    a getmain before using the storage pointer.
    

APAR Information

  • APAR number

    PK78051

  • Reported component name

    CICSTS V3 Z/OS

  • Reported component ID

    5655M1500

  • Reported release

    400

  • Status

    CLOSED UR1

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2009-01-02

  • Closed date

    2009-03-24

  • Last modified date

    2009-04-02

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

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

    UK45233 UK45234

Modules/Macros

  •    DESRZRS  DESRZST  DFHRZRMC DFHRZRMD DFHRZRSC
    DFHRZRSD DFHRZRS1 DFHRZSO  DFHRZSOA DFHRZSOJ DFHRZSOM DFHRZSOT
    DFHRZSOV DFHRZSO1 DFHRZTA  DFHRZTAA DFHRZTAM DFHRZTAT
    

Fix information

  • Fixed component name

    CICSTS V3 Z/OS

  • Fixed component ID

    5655M1500

Applicable component levels

  • R400 PSY UK45233

       UP09/03/27 P F903

  • R500 PSY UK45234

       UP09/03/27 P F903

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:
02 April 2009