PM84581: D3P2,ABND=04E-00E2000F,U=CICSUSR ,M=C9 ,C=101.DDIS-DSNLZRPA, DISTRBUTED,LOC=DSNLZRTM.DSNSVSFB+0858

A fix is available

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APAR status

  • Closed as program error.

Error description

  • DB2DDF DB2DRDA DB2TERM defect pm84581 dpm84581
    DB2 V10 CM abended with RC00D94001. A dump was generated
    with this title:
    
    ABND=04E-00E2000F,U=CICSUSR ,M=C9
    ,C=101.DDIS-DSNLZRPA,DISTRBUTED,LOC=DSNLZRTM.DSNSVSFB+0858
    *******************************************************
    Additional Symptoms and Keywords:
     ABEND04E AB04E S004E 04E
      04E-00E20006 00E20006 RC00E20006
       DSNLZRTM.DSNSVBK DSNLZRTM DSNSVBK +096A
      04E-00E2000F 00E2000F RC00E2000F
       DSNLZRTM.DSNSVSFB DSNLZRTM DSNSVSFB+0858 DSNSVSFB +0858
     DSNV086E MSGDSNV086E 00D94001 RC00D94001
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All Distributed Data Facility (DDF) users.   *
    ****************************************************************
    * PROBLEM DESCRIPTION: The following intermittent abends are   *
    *                      reported:                               *
    *                      o 04E-00E20006 DSNLZRTM.DSNSVBK +096A   *
    *                        or various other offsets (V9).        *
    *                      o 04E-00E2000F DSNLZRTM.DSNSVSFB+0858   *
    *                        or various other offsets (V10).       *
    *                      In either case, DB2 will likely         *
    *                      abnormally terminate with message       *
    *                      DSNV086E and reason 00D94001.           *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    A DB2 for z/OS allied thread happened to be abnormally
    terminated, in this case via a U0999-00000000 abend, while
    CSECT DSNLZRTM was in the process of freeing DDF related
    storage.  As a result of the abend, the allied thread enters
    abort processing but a residual pointer value causes the
    storage to be freed again.  The erroneous double free of
    the storage is detected in the form of an abend 04E-00E20006
    DSNLZRTM.DSNSVBK (V9) or 04E-00E2000F DSNLZRTM.DSNSVSFB (V10).
    The abend during abort processing causes the subsystem to be
    terminated with message DSNV086E and reason code 00D94001.
    

Problem conclusion

  • DB2 has been changed to anticipate that its processing may be
    interrupted and hence clear pointer references to its storage
    as the storage is being freed.  This ensures that a free of the
    storage cannot be repeated if processing is interrupted.
    

Temporary fix

  • *********
    * HIPER *
    *********
    

Comments

APAR Information

  • APAR number

    PM84581

  • Reported component name

    DB2 OS/390 & Z/

  • Reported component ID

    5740XYR00

  • Reported release

    A10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-03-11

  • Closed date

    2013-04-05

  • Last modified date

    2013-05-03

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

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

    UK93178 UK93179

Modules/Macros

  •    DSNLXCMT DSNLXRCL DSNLXRDT DSNLXROP DSNLXRSQ
    DSNLXRUW DSNLZRTM
    

Fix information

  • Fixed component name

    DB2 OS/390 & Z/

  • Fixed component ID

    5740XYR00

Applicable component levels

  • RA10 PSY UK93178

       UP13/04/20 P F304

  • R910 PSY UK93179

       UP13/04/20 P F304

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:

DB2 for z/OS

Software version:

A10

Reference #:

PM84581

Modified date:

2013-05-03

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