PM82027: ABEND S0C7, EIBTASKN OVERLAY OUT OF EYU9NXLM.

A fix is available

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • If CPSM resource definitions are not successful in EYU9NXLM,
    control may return to CICS with incorrect data in the restored
    registers. This may lead to an S0C7 abend in another resource
    manager module later during CICS initialization.
    .
    Additional Keywords/Symptoms:
    DFHAP0001 DFHAP0707 EYUNX0102E EYUNX0103E EIBTASKN overlay
    EIB R14 NXLM_RETURN_TO_CICS
    KIXREVRJL
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All CICSPlex SM V5R1M0 Users                 *
    ****************************************************************
    * PROBLEM DESCRIPTION: If CPSM resource definitions are not    *
    *                      successfully created at MAS agent       *
    *                      initialization by program EYU9NXLM      *
    *                      (MASes and WUI servers) or program      *
    *                      EYU9NXRM (SMSS systems), control may    *
    *                      return to CICS with incorrect data in   *
    *                      the restored registers. This may lead   *
    *                      to an S0C7 abend in another resource    *
    *                      manager program later during CICS       *
    *                      initialization.                         *
    *                                                              *
    *                      When this occurs, any combination of    *
    *                      the following messages can occur:       *
    *                                                              *
    *                        EYUNX0014E (all)                      *
    *                        EYUNX0022E (MAS or WUI server only)   *
    *                        EYUNX0039E (SMSS only)                *
    *                        EYUNX0101E (all)                      *
    *                        EYUNX0102E (all)                      *
    *                        EYUNX0103E (all)                      *
    ****************************************************************
    * RECOMMENDATION: After applying the PTF that resolves this    *
    *                 APAR, all MASes, WUI servers and SMSS        *
    *                 systems must be restarted.  Note that the    *
    *                 restarts do not need to occur at the same    *
    *                 time.                                        *
    ****************************************************************
    When MAS agent initialization starts in a MAS, WUI server or
    SMSS system, EYU9NXLM (NXLM - MAS or WUI server) or EYU9NXRM
    (NXRM - SMSS) is called to build the CICS definitions required
    for the system to run as a MAS.
    
    If NXLM or NXRM correctly builds the CICS definitions, they call
    program EYU9NXSM (NXSM) to continue initialization.  Prior to
    calling NXSM, they save general registers 12 (R12 - CICS EIB
    address) and 13 (R13 - CICS EIS address).  Upon return from
    NXSM, they branch to a common exit routine, which restores the
    registers and then returns to CICS.
    
    If a problem occurs during the build of the CICS definitions,
    instead of calling NXSM, NXLM and NXRM issue a combination of
    the messages listed above, and then branch to the common exit
    routine, where they restore R12 and R13, and return to CICS.
    However, since NXSM was never called, the contents of R12 and
    R13 were never saved into the area they are restored from.
    This results in R12 and R13 not containing the CICS EIB and
    EIS addresses upon return to CICS, which can result in the
    documented error.
    

Problem conclusion

  • NXLM and NXRM have been updated to only restore R12 and R13 if
    they call NXSM.
    

Temporary fix

  • FIX AVAILABLE BY PTF ONLY
    

Comments

APAR Information

  • APAR number

    PM82027

  • Reported component name

    CICS TS Z/OS V5

  • Reported component ID

    5655Y0400

  • Reported release

    80M

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-02-04

  • Closed date

    2013-02-14

  • Last modified date

    2013-03-04

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

    PM81896

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

    UK91670

Modules/Macros

  •    EYU9NXLM EYU9NXRM
    

Fix information

  • Fixed component name

    CICS TS Z/OS V5

  • Fixed component ID

    5655Y0400

Applicable component levels

  • R80M PSY UK91670

       UP13/02/21 P F302

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


More support for:

z/OS family

Software version:

5.1

Reference #:

PM82027

Modified date:

2013-03-04

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