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PH64904: ABEND5C6 00E60094 IN CSQWVCOL

A fix is available

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APAR status

  • Closed as program error.

Error description

  • Route of fix for defect 299104 to correct ABEND5C6 00E60094 in
    CSQWVCOL
    

Local fix

  • Disable MQ MSTR internal trace
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of IBM MQ for z/OS Version 9       *
    *                 Release 4 Modification 0.                    *
    ****************************************************************
    * PROBLEM DESCRIPTION: Users may experience an ABEND5C6        *
    *                      00E60094 in CSQWVCOL when a job runs    *
    *                      out of memory, typically during         *
    *                      abnormal end-of-memory (EOM)            *
    *                      processing.                             *
    ****************************************************************
    The RRS context manager allocates an execution block for a
    dynamic ASCE that does not include a pointer to the THTR storage
    block, which is required for 64-bit trace. This leads to a
    5C6-00E60094 abend during EOM processing if GLOBAL trace is
    enabled.
    

Problem conclusion

  • The problem has been resolved by disabling 64-bit trace for the
    affected execution block in this scenario.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PH64904

  • Reported component name

    IBM MQ Z/OS V9

  • Reported component ID

    5655MQ900

  • Reported release

    CD0

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2025-01-21

  • Closed date

    2025-12-02

  • Last modified date

    2026-02-01

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

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

    UO06040

Modules/Macros

  • CSQ3RRSM
    

Fix information

  • Fixed component name

    IBM MQ Z/OS V9

  • Fixed component ID

    5655MQ900

Applicable component levels

  • R400 PSY UO06040

       UP26/01/10 P F601

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.

[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSYHRD","label":"IBM MQ"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"CD0","Line of Business":{"code":"LOB77","label":"Automation Platform"}}]

Document Information

Modified date:
01 February 2026