IBM Support

PH13593: MVFS BSOD IN MVFS CACHE MANAGER WHEN CREATING AND ACCESSING LARGE NUMBERS OF VIEW PRIVATE FILES IN A DYNAMIC VIEW

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APAR status

  • Closed as program error.

Error description

  • When running a task that creates and accesses large numbers of
    view private files in parallel in an IBM Rational ClearCase
    dynamic view, the ClearCase host may crash reporting an error in
    mvfs100x64.sys. The dump will report this as a "CACHE_MANAGER"
    dump.
    

Local fix

  • Disable the MVFS cache manager by setting the following registry
    value to 0:
    HKLM\system\Currentcontrolset\services\mvfs\Parameters\UseCacheM
    anager. Then reboot the host. This should eliminate the crash,
    but may degrade MVFS performance.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * Users of ClearCase on Microsoft Windows                      *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * The ClearCase client host may crash with code CACHE_MANAGER  *
    * (34), during activities which generate concurrent I/O        *
    * operations on files in ClearCase dynamic views.              *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    

Problem conclusion

  • This problem is fixed in ClearCase 9.0.1.8.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PH13593

  • Reported component name

    CLEARCASE WIN

  • Reported component ID

    5724G2900

  • Reported release

    901

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2019-06-19

  • Closed date

    2019-09-23

  • Last modified date

    2019-09-23

  • 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

    CLEARCASE WIN

  • Fixed component ID

    5724G2900

Applicable component levels

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSSH27","label":"Rational ClearCase"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"901","Edition":"","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
23 September 2019