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PH49741: ABEND0C4 IN DFHDSWR + X'868' FOR STAT TRANSACTION DFHDS0002 CODE 110A IN MODULE DFHDSWR

A fix is available

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APAR status

  • Closed as program error.

Error description

  • Using the default DFH0STAT program.
    When running the STAT transaction. This completes fine, and
    produces the reports fine, however there is also an abend0c4
    pic11 taken in DFHDSWR at offset + x'0868', when the following
    set of options are used:
    - CICS region is started with SIT override TCPIP=NO
    - STAT transaction, statistics panel's Report Selection has
      TCP/IP set to Y.
    In this case a couple of dumps are taken similar to the
    following:
    DUMP TITLE=CICS DUMP: SYSTEM=appl-id  CODE=DS0002   ID=2/0001
    +DFHDU0202  appl-id  SDUMPX COMPLETE. SDUMPX RETURN CODE X'00'
    +DFHDS0001  appl-id  An abend (code 0C4/AKEA) has occurred at
                         offset X'0868' in module DFHDSWR.
                                                                   .
    DUMP TITLE=CICS DUMP: SYSTEM=appl-id  CODE=DS0001   ID=2/0002
    +DFHDU0202  IYCKZCDK SDUMPX COMPLETE. SDUMPX RETURN CODE X'00'
                                                                   .
    Then the dump with code=DS0002 shows Kernel stack entry for the
    STAT transaction with similar to:
                                                                   .
    DFHEIQMS
    DFHSOST
      COLLECT_RESOURCE_STATISTICS
    DFHDSWR
      INQ_RESOURCE
      SEVERE_ERROR
                                                                   .
    A CICS internal trace taken, shows the abend occurred while
    collecting resource statistics for resource type TCPIP, followed
    by an invalid token got back for an INQ_RESOURCE.
                                                                   .
    ..QR  SO 0A01 SOST  ENTRY COLLECT_RESOURCE_STATS
                     RESOURCE_TYPE(TCPIP) RESOURCE_STATISTICS_DATA..
    ..QR  DS 1100 DSWR  ENTRY INQ_RESOURCE RESOURCE_NAME(S8TLSHS)
                      TOKEN(00000000 , 00000000)
                              [[[[[[[[[[[[[[[[[[[
    ..QR  DS 110A DSAC  *EXC* INVALID_TOKEN FUNCTION(INQ_RESOURCE)
                 RESOURCE_NAME(S8TLSHS) TOKEN(00000000 , 00000000)
    (This is the DSWR token).
    Additional symptoms:
    During shutdown of your region, you receive the following error:
    DFHDS0002  A severe error (code X'110A') has occurred in
               module DFHDSWR
    In the dump Module DFH0STPR + X'6D06' has issued EXEC CICS
    EXTRACT STATISTICS. . Here is the exception trace:
    DSAC  *EXC* - INVALID_TOKEN FUNCTION(INQ_RESOURCE)
                  RESOURCE_NAME(S8TLSHS) TOKEN(00000000 , 00000000)
    DFH0STAT DFH0STLK DFHSTP
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All CICS users.                              *
    ****************************************************************
    * PROBLEM DESCRIPTION: STAT transaction, EXTRACT STATISTICS    *
    *                      TCPIP and COLLECT STATISTICS TCPIP      *
    *                      abend with messages DFHDS0002 and       *
    *                      DFHDS0001 when SIT override TCPIP=NO.   *
    ****************************************************************
    CICS region was started with SIT override TCPIP=NO but STAT
    transaction, statistics panel's Report Selection has TCP/IP set
    to Y. The statistics report was printed for TCP/IP as a result,
    but with the uninitialized values in the TCP/IP SSL handshake
    fields.
    Abend can be observed with commands EXTRACT STATISTICS TCPIP and
    COLLECT STATISTICS TCPIP, when SIT override TCPIP=NO.
    Abend messages DFHDS0002 and DFHDS0001 were printed in job log
    while collecting resource statistics for TCP/IP.
    

Problem conclusion

  • CICS has been changed to populate the TCP/IP SSL handshake
    fields with zeroes when SIT override TCPIP=NO.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PH49741

  • Reported component name

    CICS TS Z/OS V6

  • Reported component ID

    5655YA100

  • Reported release

    400

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2022-09-22

  • Closed date

    2022-10-20

  • Last modified date

    2023-02-22

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

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

    UI82911

Modules/Macros

  • DFHSOST
    

Fix information

  • Fixed component name

    CICS TS Z/OS V6

  • Fixed component ID

    5655YA100

Applicable component levels

  • R400 PSY UI82911

       UP22/10/25 P F210

Fix is available

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Document Information

Modified date:
22 February 2023