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IY54392: J2PG THREADS LOOPING AND CAUSING SYSTEM HANG

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

  • System hangs, with j2pg thread or threads eating up
    most of the cpu time. A stack trace of the running
    threads will show that they are never returning from
    pageIn().
    

Local fix

  • This situation only occurs on systems overloaded with
    I/O. Attempt to tune the system to bring down the I/O
    load.
    

Problem summary

  • System will hang with one or more j2pg threads hogging all
    cpu, running from pageIn() and never returning.
    

Problem conclusion

  • Ensure that the xtree in the inode is updated when the file
    is deleted so that j2pg threads will not read stale data.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IY54392

  • Reported component name

    AIX 5L POWER V5

  • Reported component ID

    5765E6200

  • Reported release

    520

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2004-03-05

  • Closed date

    2004-03-08

  • Last modified date

    2004-04-28

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

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

    IY54394

Fix information

  • Fixed component name

    AIX 5L POWER V5

  • Fixed component ID

    5765E6200

Applicable component levels

  • R520 PSY U497992

       UP04/04/28 I 1000

  • R520 PSY U497992

       UP04/04/282I 1000

PTF to Fileset Mapping



Document information

More support for: AIX family

Software version: 520

Operating system(s): AIX

Reference #: IY54392

Modified date: 28 April 2004


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