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OA68519: ABEND0C4 PIC11 IN IFG0196L+X'189C' DURING OPEN WHEN DCBE IS VERSION 0

A fix is available

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APAR status

  • Closed as program error.

Error description

  • abend0c4 pic11 in IFG0196L+x'189C.  Reg12 is the pointer to a
    DCBE with DCBELEN of x'38' which is a version 0 DCBE.  IFG0196L
    is attempting to reference DCBE+x'39' DCBE_BYPASS_CMP_FB which
    is only valid for a version 1 DCBE.
    This only occurs with DFSMS 3.2.
    
    Additional symptoms: Data sets are being allocated with block
    size =0.  Subsequent open of the data set fails with MSGIEC141I
    abend013 rc34.
    

Local fix

  • BYPASS/CIRCUMVENTION:
    Please contact IBM Support to request ++APAR FA68519 for 320
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of z/OS DFSMS 3.2 opening a        *
    *                 sequential data set with Large Block         *
    *                 Interface (LBI) requested.                   *
    ****************************************************************
    * PROBLEM DESCRIPTION: Opening a sequential data set with      *
    *                      Large Block Interface (LBI) may result  *
    *                      in the following:                       *
    *                                                              *
    *                      1) Open processing fails with ABEND 0C4 *
    *                      RSN11.                                  *
    *                                                              *
    *                      2) Open processing completes but        *
    *                      results in the block size in the Format *
    *                      1 DSCB to be set to 0. This may cause   *
    *                      unexpected behavior on subsequent OPENs *
    *                      of the data set, including ABEND013     *
    *                      RSN34.                                  *
    ****************************************************************
    

Problem conclusion

  • Problem has been resolved.
    

Temporary fix

Comments

APAR Information

  • APAR number

    OA68519

  • Reported component name

    DATA MGMT SUPPO

  • Reported component ID

    5695DF107

  • Reported release

    320

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2025-09-17

  • Closed date

    2025-11-14

  • Last modified date

    2025-11-30

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

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

    UJ98495

Modules/Macros

  • IFG0196L
    

Fix information

  • Fixed component name

    DATA MGMT SUPPO

  • Fixed component ID

    5695DF107

Applicable component levels

  • R320 PSY UJ98495

       UP25/11/25 P F511 ¢

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:
30 November 2025