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PK66431: ABENDAKEX IN DFHSUEX. EXIT XRSINDI RUNNING UNDER THE RO TCB DURING A FILE OPEN. THE FILE HAS A JOURNAL DEFINED.

A fix is available

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APAR status

  • Closed as program error.

Error description

  • A VSAM file with a Journal defined fails when being opened.
    During PLT processing, an application issues a EXEC CICS READ
    FILE request. The file is closed and DFHFCN is called to open
    it. DFHLGST is called to connect the Journal to its logstream
    and invokes the stream class of the log manager to issue a
    IXGCONN.
    This is a long-term operation, so we switch from the QR TCB to
    the RO. While still running under the RO TCB, the GLUE (CPSM
    exit EYU9NLID) defined to run in XRSINDI is invoked. DFHSUEX is
    called to handle the exit and abends with an abend AKEX at
    offset x'00000980' performing an INQ_SUBSPACE_ENVIRONMENT
    request. The failing instruction is a load of Register8 from
    CSASMITK as part of the macro DFHCSAD TYPE=LOCATE,REG=R8.
    DFHCSAD loads L8 with the address of the CSA from AFCSA (in
    DFHAFCB). The task is still running under the RO TCB. This TCB
    has not primed AFCSA with the address of the CSA. Consequently,
    L8 is loaded with zeroes causing DFHSUEX to abend0C4.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All                                          *
    ****************************************************************
    * PROBLEM DESCRIPTION: Abend akex in DFHSUEX for a call to     *
    *                      GLUE XRSINDI from DFHLGST.              *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    A call to XRSINDI from DFHLGST for logstream connect processing
    is made under the RO TCB. If the GLUE has switched subspaces,
    the codepath in DFHSUEX upon return from the GLUE will attempt
    to return to the original subspace. This requires addressability
    to the CSA but the RO TCB does not have an AFCB primed with the
    CSA address. This results in an abend AKEX.
    Keywords: abendakex CPSM CM CICSPlex PK56992 EYU9NLID 0C4 S0C4
              abends0c4 abend0c4
    

Problem conclusion

  • DFHLGST has been changed to return to the QR TCB before invoking
    XRSINDI for logstream connect processing.
    

Temporary fix

  • FIX AVAILABLE BY PTF ONLY
    

Comments

APAR Information

  • APAR number

    PK66431

  • Reported component name

    CICSTS V3 Z/OS

  • Reported component ID

    5655M1500

  • Reported release

    500

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2008-05-22

  • Closed date

    2008-06-20

  • Last modified date

    2008-10-14

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

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

    UK37497 PK73703

Modules/Macros

  •    DESLGST  DFHLGST
    

Fix information

  • Fixed component name

    CICSTS V3 Z/OS

  • Fixed component ID

    5655M1500

Applicable component levels

  • R500 PSY UK37497

       UP08/06/25 P F806

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:
14 October 2008