IBM Support

IV64999: PROCESS READING FROM JFS2 FS WILL HANG DURING FREEZE APPLIES TO AIX 6100-08

A fix is available

Subscribe

You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Unable to read from the filesystem which is freezed by
    following command:
    chfs -a freeze=<timeout> /<mount point>
    
    After issuing the above command on a filesystem,
    It is suppose to be read only during this time and allow
    reads. Writes will be blocked and that should be
    expected behavior. Instead, during the timeout period the
    filesystem will block for both reads and writes.
    
    This problem can be seen only on AIX 7.1 TL03, AIX 6.1
    TL09 and above
    
    After fix reads should work during freeze.
    

Local fix

  • Move any file that needs to be accessed during freeze
    outside
    of the fileystem before freezing.
    

Problem summary

  • Unable to read from the filesystem which is frozen  by
    following command:
    chfs -a freeze=<timeout> /<mount point>
    
    After issuing the above command on a filesystem,
    It is suppose to be read only during this time and allow
    reads. Writes will be blocked and that should be
    expected behavior. Instead, during the timeout period the
    filesystem will block for both reads and writes.
    

Problem conclusion

  • Correct locking order
    

Temporary fix

Comments

  • 6100-08 - use AIX APAR IV64999
    6100-09 - use AIX APAR IV63983
    6100-09 - use AIX APAR IV63983
    7100-02 - use AIX APAR IV65000
    7100-03 - use AIX APAR IV64677
    

APAR Information

  • APAR number

    IV64999

  • Reported component name

    AIX 610 STD EDI

  • Reported component ID

    5765G6200

  • Reported release

    610

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2014-09-17

  • Closed date

    2014-09-17

  • Last modified date

    2015-01-21

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

    IV63983

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

Fix information

  • Fixed component name

    AIX 610 STD EDI

  • Fixed component ID

    5765G6200

Applicable component levels

  • R610 PSY U867355

       UP15/01/18 I 1000

PTF to Fileset Mapping



Document information

More support for: AIX Standard Edition

Software version: 610

Operating system(s): AIX

Reference #: IV64999

Modified date: 21 January 2015