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PM41223: CLEARTOOL UMOUNT CAUSES AIX SYSTEM TO BECOME UNRESPONSIVE AND HANG

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APAR status

  • Closed as program error.

Error description

  • cleartool umount causes AIX system to become unresponsive and
    hang
    
    
    AIX 5.3 and 6.1
    
    ClearCase 7.1.x
    
    
    To Reproduce:
    
    1)  Mount several public or private VOBs on an AIX 5.3 / 6.1
    system with ClearCase and MVFS installed:  The storage and
    hosting of the VOBs can either be local or remote on a dedicated
    VOB server and could be NAS or SAN stored
    
    2)  After several hours or days of use, verify that all user
    sessions on the client system have exited a VOB/View context and
    are no longer using ClearCase
    
    3)  Now, attempt to issue a cleartool umount on one of the VOBs
    mounted
    
    4)  The system will no longer respond to commands or allow
    terminal sessions, though ping does respond
    
    
    Workaround:  None
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    Under certain circumstances, using the cleartool umount
    command to unmount a ClearCase VOB on AIX 5.3 or 6.1 could
    cause a system hang.
    

Problem conclusion

  • A fix is available in ClearCase versions 7.1.1.8, 7.1.2.5
    and 8.0.0.1
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM41223

  • Reported component name

    CC&CC MSITE UNI

  • Reported component ID

    5724G3301

  • Reported release

    712

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2011-06-09

  • Closed date

    2011-12-16

  • Last modified date

    2011-12-16

  • 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

    CC&CC MSITE UNI

  • Fixed component ID

    5724G3301

Applicable component levels

  • R712 PSN

       UP

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Document Information

Modified date:
16 December 2011