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PK66423: ABEND 0C1 IN EYU0TAAC (TAAC) DUE TO BRANCH TO LOWCORE

A fix is available

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APAR status

  • Closed as program error.

Error description

  • The customer experiences an abend 0C1 in module EYU0TAAC at
    offset x'902' as a result of a bad branch to lowcore.  Reg14 is
    loaded with zeros before branching in the INCON_CHECK routine.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All CICSPlex SM V3R2M0 Users                 *
    ****************************************************************
    * PROBLEM DESCRIPTION: Abend ASRA/S0C1 may occur in a CMAS in  *
    *                      method EYU0TAAC (TAAC) when a user      *
    *                      attempts to add a CICS system or a CICS *
    *                      system group to a CICS system group.    *
    *                      The PSW address will point to low core. *
    ****************************************************************
    * RECOMMENDATION: After applying the PTF that resolves this    *
    *                 APAR, all CMASes must be restarted.  Note    *
    *                 that the restarts do not need to occur at    *
    *                 the same time.                               *
    ****************************************************************
    During the process of adding a new member to a CICS system
    group, method EYU0TAAC (TAAC) calls method EYU0TSFD (TSFD) to
    validate the member being added from two different subroutines.
    If the TSFD validation fails, both subroutines branch to the
    same error routine, which is contained in the first subroutine.
    When the branch occurs from the second subroutine into the first
    subroutine, the standard linkage procedures are bypassed.  This
    results in an invalid return address, most likely null, being
    used to return to the main line code, which will cause the abend
    ASRA/S0C1.
    

Problem conclusion

  • The second subroutine in TAAC has been updated to have its own
    member validation error routine, instead of branching to the
    error routine in the first subroutine.
    

Temporary fix

  • FIX AVAILABLE BY PTF ONLY
    

Comments

APAR Information

  • APAR number

    PK66423

  • Reported component name

    CICSTS V3 Z/OS

  • Reported component ID

    5655M1500

  • Reported release

    50M

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2008-05-21

  • Closed date

    2008-05-23

  • Last modified date

    2008-06-02

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

    PK66463

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

    UK36718

Modules/Macros

  •    EYU0TAAC
    

Fix information

  • Fixed component name

    CICSTS V3 Z/OS

  • Fixed component ID

    5655M1500

Applicable component levels

  • R50M PSY UK36718

       UP08/05/28 P F805

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 June 2008