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

Rational ClearCase Fix Pack 09 (7.1.2.9) for 7.1.2
Rational ClearCase Fix Pack 05 (8.0.0.5) for 8.0
Rational ClearCase Fix Pack 14 (7.1.2.14) for 7.1.2
Rational ClearCase Fix Pack 11 (8.0.0.11) for 8.0
Rational ClearCase Fix Pack 12 (8.0.0.12) for 8.0
Rational ClearCase Fix Pack 15 (7.1.2.15) for 7.1.2
Rational ClearCase Fix Pack 13 (8.0.0.13) for 8.0
Rational ClearCase Fix Pack 16 (7.1.2.16) for 7.1.2
Rational ClearCase Fix Pack 17 (7.1.2.17) for 7.1.2
Rational ClearCase Fix Pack 14 (8.0.0.14) for 8.0
Rational ClearCase Fix Pack 18 (7.1.2.18) for 7.1.2
Rational ClearCase Fix Pack 15 (8.0.0.15) for 8.0
Rational ClearCase Fix Pack 19 (7.1.2.19) for 7.1.2
Rational ClearCase Fix Pack 16 (8.0.0.16) for 8.0
Rational ClearCase Fix Pack 17 (8.0.0.17) for 8.0
Rational ClearCase Fix Pack 18 (8.0.0.18) for 8.0
Rational ClearCase Fix Pack 19 (8.0.0.19) for 8.0
Rational ClearCase Fix Pack 20 (8.0.0.20) for 8.0
Rational ClearCase Fix Pack 21 (8.0.0.21) for 8.0

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 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

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