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IV55030: CAT /PROC/SYS/FS/JFS2/MEMORY_USAGE MAY RETURN INVALID ARGUMENT APPLIES TO AIX 7100-03

A fix is available

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • cat /proc/sys/fs/jfs2/memory_usage may return with an
    error
    and if it didn't return with an error, it returned an
    incomplete message.
    
    $ cat /proc/sys/fs/jfs2/memory_usage
    cat: /proc/sys/fs/jfs2/memory_usage: A system call
    received a parameter that is not valid.
    cat: 0652-053 Cannot close the file.
    
    $ cat /proc/sys/fs/jfs2/memory_usage
    total: 220823552
    
    The expected message should look like:
    $ cat /proc/sys/fs/jfs2/memory_usage
    metadata cache: 8163328
    inode cache: 4259840
    total: 12423168
    
    This problem occurs on 61Y.
    

Local fix

Problem summary

  • '$c at /proc/sys/fs/jfs2/memory_usage' may return with an
    error or an incomplete message.
    
    $ cat /proc/sys/fs/jfs2/memory_usage
    cat: /proc/sys/fs/jfs2/memory_usage: A system call
    received a parameter that is not valid.
    cat: 0652-053 Cannot close the file.
    
    $ cat /proc/sys/fs/jfs2/memory_usage
    total: 220823552
    

Problem conclusion

  • In tuning_file_read(), check buffer size before
    calling uiomove()
    

Temporary fix

Comments

  • 6100-08 - use AIX APAR IV57785
    6100-09 - use AIX APAR IV54359
    6100-09 - use AIX APAR IV54359
    6100-09 - use AIX APAR IV54359
    6100-09 - use AIX APAR IV54359
    7100-02 - use AIX APAR IV56930
    7100-03 - use AIX APAR IV55030
    7100-04 - use AIX APAR IV54935
    

APAR Information

  • APAR number

    IV55030

  • Reported component name

    AIX V7.1

  • Reported component ID

    5765H4000

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2014-02-05

  • Closed date

    2014-02-05

  • Last modified date

    2016-05-10

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

    IV54359

  • 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 U858978

       UP14/05/22 I 1000

PTF to Fileset Mapping



Document information

More support for: AIX Enterprise Edition

Software version: 710

Operating system(s): AIX

Reference #: IV55030

Modified date: 10 May 2016