IBM Support

IV66341: CRASH IN PAGERUNBIND WHILE FORCE UNMOUNTING A DEGRADED FS APPLIES TO AIX 7100-03

A fix is available

Subscribe

You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • When a force unmount is done on a degraded file system
    the
    system might crash with following stack:
    
    [0038D1C0]pagerUnbind@AF66_41+000060 (F1000A038
       0000000000000003, F1000A02003D1BB8 [??])
    [00188E90]iRecycle+000070 (??, ??, ??)
    [00185894]iUnmount+0002F4 (??, ??, ??)
    [003F437C]umount_fs_degraded+00025C (??, ??)
    [003F5960]j2_umount+000160 (??, ??, ??)
    [005C98AC]vfs_unmount+00008C (??, ??, ??)
    [00662798]kunmount+000218 (??, ??, ??)
    [00662E88]uvmount+000208 (??, ??)
    

Local fix

  • There is no local fix but problem looks to be pretty rare
    since there is a small window for error to occur.
    

Problem summary

  •  0038D1C0 pagerUnbind@AF66_41+000060 (F1000A038
       0000000000000003, F1000A02003D1BB8  ?? )
     00188E90 iRecycle+000070 (??, ??, ??)
     00185894 iUnmount+0002F4 (??, ??, ??)
     003F437C umount_fs_degraded+00025C (??, ??)
     003F5960 j2_umount+000160 (??, ??, ??)
     005C98AC vfs_unmount+00008C (??, ??, ??)
     00662798 kunmount+000218 (??, ??, ??)
     00662E88 uvmount+000208 (??, ??)
    

Problem conclusion

  • set i_exception to (IXLOGERROR | IXFSERROR)
    

Temporary fix

Comments

  • 6100-08 - use AIX APAR IV69964
    6100-09 - use AIX APAR IV66298
    7100-02 - use AIX APAR IV67696
    7100-03 - use AIX APAR IV66341
    

APAR Information

  • APAR number

    IV66341

  • Reported component name

    AIX V7.1

  • Reported component ID

    5765H4000

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2014-10-28

  • Closed date

    2014-10-28

  • Last modified date

    2015-09-30

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

    IV54870

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

Fix information

  • Fixed component name

    AIX V7.1

  • Fixed component ID

    5765H4000

Applicable component levels

  • R710 PSY U865837

       UP15/05/19 I 1000

PTF to Fileset Mapping



Document information

More support for: AIX Enterprise Edition

Software version: 710

Operating system(s): AIX

Reference #: IV66341

Modified date: 30 September 2015