IBM Support

IT44412: Enhancements to the modver utility

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APAR status

  • Closed as program error.

Error description

  • The IBM MQ Replicated Data Queue Manager (RDQM) component
    includes a utility called "modver" which can be used to
    determine the appropriate kernel module for the current kernel.
    This APAR delivers some modifications to this utility.

Local fix

Problem summary

  • ****************************************************************
    Users of the RDQM component
    Platforms affected:
    Linux on x86-64

Problem conclusion

  • New optional parameters have been added to the modver utility.
    The new parameters allow a kernel level other than the current
    kernel to be checked. A minimum MQ level is optionally reported.
    The usage description is:
    modver [ -?|-h | ( [-m|-M] [-v] [kernelLevel] ) ]
        -?|-h : Show usage text and exit
        -m :    Print the minimum IBM MQ maintenance level
    compatible with the appropriate kernel module kernel level
        -M :    Only print the minimum compatible IBM MQ maintenance
    level, do not print the kernel module
        -v :    Print verbose output
        kernelLevel  A RHEL kernel level to test. If omitted the
    currently running kernel level returned by 'uname -a' is used
    This APAR additionally introduces the modver utility for future
    IBM MQ 9.1 maintenance releases and the associated IBM MQ 9.1
    kernel module download package.
    The fix is targeted for delivery in the following PTFs:
    Version    Maintenance Level
    v9.1 LTS
    v9.2 LTS
    v9.3 LTS
    v9.x CD    9.3.5
    The latest available maintenance can be obtained from
    'IBM MQ Recommended Fixes'
    If the maintenance level is not yet available information on
    its planned availability can be found in 'IBM MQ
    Planned Maintenance Release Dates'

Temporary fix


APAR Information

  • APAR number


  • Reported component name

    MQ BASE V9.2

  • Reported component ID


  • Reported release


  • Status


  • PE




  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date


  • Closed date


  • Last modified date


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

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

Fix information

  • Fixed component name

    MQ BASE V9.2

  • Fixed component ID


Applicable component levels

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSYHRD","label":"IBM MQ"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"920","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
16 December 2023