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PH68943: V550 JANUARY 2026 BUGFIX RELEASE

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APAR status

  • Closed as program error.

Error description

  • V550 January 2026 bugfix release
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: IBM OMEGAMON for Db2 Performance Expert      *
    *                 on z/OS 5.5.0 users.                         *
    ****************************************************************
    * PROBLEM DESCRIPTION: 1. Register product via IFAEDREG.       *
    *                      2. Message FPEM550 issued for "DB2" or  *
    *                         "LOOK" commands in ISPF online for   *
    *                         Db2 version 13 subsystems.           *
    *                      3. INCORROUT for Thread History         *
    *                         longest waiters output.              *
    *                      4. Missing end user ID causing error    *
    *                         message KO2D0001E to be displayed    *
    *                         in the logs.                         *
    *                      5. S0C4 ABEND caused by memory overlay. *
    *                      6. The RECTRACE report does not display *
    *                         the partition number when the lock   *
    *                         resource type is an index manager    *
    *                         tree (P-lock).                       *
    *                      7. The LOCKING report does not display  *
    *                         the partition number when lock type  *
    *                         is PART SPL.                         *
    *                      8. SOC4 ABEND while processing IFCIDs   *
    *                         411 and 412 in RECTRACE report.      *
    *                                                              *
    ****************************************************************
    * RECOMMENDATION: Apply this PTF.                              *
    ****************************************************************
    1. Register product using IFAEDREG service.
    2. ISPF online monitor "DB2" and "LOOK" commands receive
       error message FPEM550 for Db2 13 subsystems.
    3. Incorrect conversion routine date and time fields in
       Enhanced 3270 Thread History longest Waiter screen KDPHLWAT.
    4. If Db2 data section is not present, we skip end user ID
       processing leading to message KO2D0001E.
    5. While collecting data in Snapshot History (For PE Client
       interface) from Db2 data sharing group sporadic memory
       overlays happens for unknown reasons.
    6. The logic for displaying the partition number was missing in
       the RECTRACE report when the lock resource type is an index
       manager tree (P-lock).
    7. The logic for displaying the partition number was missing in
       the LOCKING report when the lock type is PART SPL.
    8. In certain cases, generating a RECTRACE report for IFCIDs 411
       and 412 may result in an ABEND S0C4.
    

Problem conclusion

  • 1. OMEGAMON Db2 will now register the product at initialization
       using the register service IFAEDREG.
    2. Corrected Db2 13 support for "DB2" and "LOOK" commands in
       ISPF interface.
    3. Corrected conversion for date and time fields in KDPHLWAT.
    4. Leave end user ID empty if it's not present.
    5. Additional checks of data integrity added to avoid memory
       overlay.
    6. Logic for displaying the partition number in the RECTRACE
       report when the lock resource type is an index manager tree
       (P-lock) has been added.
    7. Logic for displaying the partition number in LOCKING report
       when the lock type is PART SPL has been added.
    8. Processing of IFCIDs 411 and 412 in the RECTRACE report has
       been updated to resolve the S0C4 abend.
    
    KEYWORDS:
    KDPHLWAT THRDACCT QWHCEUID CT_getCounterValueRaw QLAUPRLV
    QLAPPRLV PARTSPL
    
    Additional APAR Closed: PH69145
    

Temporary fix

Comments

APAR Information

  • APAR number

    PH68943

  • Reported component name

    OM XE DB2PE/PM

  • Reported component ID

    5655OPE00

  • Reported release

    550

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2025-11-12

  • Closed date

    2026-01-23

  • Last modified date

    2026-02-03

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

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

    UO06562

Modules/Macros

  • DGOAREDC DGOD8AF  DGOD9AP  DGOLXRES DGOM8AL  DGOMCDB2 DGOMDPMN
    DGOMDX00 DGOMLOOK DGONFLAX DGONSLCK DGOVMB   DGOVMSTR DGOVSCNI
    DGOZMB   FPEFMAIN FPEMMENU FPEUMSGS FPEVDIM  FPEVMST2 FPEVTMEM
    FPEVZRAC KD5AGENT KDPEDREG KO2ABROW
    

Fix information

  • Fixed component name

    OM XE DB2PE/PM

  • Fixed component ID

    5655OPE00

Applicable component levels

  • R550 PSY UO06562

       UP26/02/03 I 1000

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:
03 February 2026