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PM64312: SuSE 11 SP1 view extended access to non-ClearCase related mount points prevent their unmounting after the fact

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • SuSE 11 SP1 view extended access to non-ClearCase related mount
    points prevent their unmounting after the fact
    
    
    ClearCase 7.1.1.x and 7.1.2.x
    
    
    SuSE 11 SP1
    
    
    
    To Reproduce:
    
    1)  Make a View (can be locally stored or NAS)
    
    2)  cleartool startview ?tag?
    
    3)  /harddisk is a mount point to /dev/sdb1
           NOTE:  /dev/sdb1 is a secondary hard drive added to the
    system to create a mount point /harddisk
           NOTE:  /dev/sdb1 is an EXT3 filesystem
    
    4)  cp /etc/* /harddisk/
    
    5)  find /view/?tag?/harddisk -name *.conf
    
    6)  umount /harddisk
    umount:  /harddisk: device is busy
           (In some cases useful info about processes that use
            the device is found by loaf(8) or fuser(1))
    
    7)  Stop ClearCase and verify mvfs has been removed from the
    kernel
    
           /usr/atria/etc/clearcase stop
           lsmod | grep mvfs
    
    The lsmod lists no mvfs module in the kernel
    
    8)  umount /harddisk
    umount:  /harddisk: device is busy
           (In some cases useful info about processes that use
            the device is found by loaf(8) or fuser(1))
    
    9)  Reboot the system:  You can now unmount /harddisk
    
    
    Workaround:  Do not access non-ClearCase filesystems from within
    a view extended path
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    A Linux user who mounts a disk or partition and attempts to
    access a file in that partition using view-extened pathnames
    might be unable to unmount that disk or partition.
    

Problem conclusion

  • This problem is fixed in 7.1.2.09 and 8.0.0.05.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM64312

  • 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

    2012-05-09

  • Closed date

    2012-12-15

  • Last modified date

    2012-12-15

  • 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

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSSH3S","label":"Rational ClearCase MultiSite"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.1.2","Edition":"","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
15 December 2012