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PM81102: ABEND0C1 DURING SHUTDOWN IF THE CICS TERMINATION WAS BEING TRIGGERED BY THE SHUTDOWN OPTION OF DUMPCODE SM0102

A fix is available

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APAR status

  • Closed as program error.

Error description

  • Problem happens if there is a storage violation and dumpcode
    SM0102 is defined with option SHutdown. A dump is taken for
    the SM0102 and  CICS begins to terminate. However, during
    shutdown we see DUMPCODE: KERNDUMP, DUMPID: 0/0000.
    (MODULE DFHKESTX) and the Job completes with
    CICS - ABEND=S0C1 U0000 REASON=00000001
    The KERNDUMP is for an abend0C1. DFHKETCB is entered
    from DFHKESTX  with reg6 pointing at the KE stack and not the
     base address for DFHKETCB.
    DFHKESTX was entered with a SWDA for a loop U999 (3E7).
    KE dump error table has AKEG abends on the KTCB for
    QR, RO and STEP TCBs:
    KE_NUM  ERROR TYPE            ERR_CODE  MODULE    OFFSET
    ======  ==========            ========  ======    ======
    0002   LINKAGE               ---/AKEG  DFHKETCB  000027BA
    0003   LINKAGE               ---/AKEG  DFHKETCB  000024D0
    0001   LINKAGE               ---/AKEG  DFHKETCB  0000213E
    0001   ABEND                 ---/0999  DFHKERPC  00000172
    

Local fix

  • n/a
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All CICS users.                              *
    ****************************************************************
    * PROBLEM DESCRIPTION: ABEND 0C1 during shutdown if CICS       *
    *                      termination is triggered by the         *
    *                      shutdown option of dumpcode SM0102.     *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    SM0102 is specified with shutdown option in the user's CICS
    region. A user task encounters storage violation. At the end of
    the cleaning up of the task, DFHSMAR obtains the SM domain lock
    and issues the SM0102 message. This message triggers system
    termination. During system termination, some CICS TCB tasks may
    need to acquire storage but they would fail due to being unable
    to obtain the SM domain lock. This eventually causes the system
    to terminate with abend code 0C1.
    
    Additional keyword: S0C1 ABEND0C1 ABENDS0C1
    

Problem conclusion

  • DFHSMAR has been changed so that the SM domain lock is released
    before SM0102 message is issued.
    

Temporary fix

  • FIX AVAILABLE BY PTF ONLY
    

Comments

APAR Information

  • APAR number

    PM81102

  • 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

    2013-01-22

  • Closed date

    2013-03-20

  • Last modified date

    2013-04-02

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

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

    PM83593 PM83594 UK92672

Modules/Macros

  •    DFHSMAR
    

Fix information

  • Fixed component name

    CICSTS V3 Z/OS

  • Fixed component ID

    5655M1500

Applicable component levels

  • R500 PSY UK92672

       UP13/03/29 P F303

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 2013