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IV19217: INVALID VERBOSE DATA UNDER LARGE PAUSE OPTION

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Error Message: N/A
    .
    Stack Trace: Running verbose metronome gc under and large pause
    time option (e.g. -Xgcpolicy:metronome -Xgc:targetPausetime=22
    -Xverbosegclog), invalid verbose data is observed:
    <gc-op id="15" type="heartbeat" contextid="13"
    timestamp="2011-08-31T11:30:05.314">
      <quanta quantumCount="1" quantumType="sweep"
    minTimeMs="18446744073709551.615" meanTimeMs="0.000"
    maxTimeMs="0.000" maxTimestampMs="18445429269108706.806" />
      <exclusiveaccess-info minTimeMs="0.003" meanTimeMs="0.003"
    maxTimeMs="0.003" />
      <free-mem type="heap" minBytes="18446744073709551615"
    meanBytes="0" maxBytes="0" />
      <thread-priority maxPriority="0"
    minPriority="18446744073709551615" />
    </gc-op>
    .
    N/A
    

Local fix

  • N/A
    

Problem summary

  • The problem is caused by incorrect logic the verbose GC engine.
    

Problem conclusion

  • This defect will be fixed in:
    7.0.0 SR1
    WRT-V3 SR1
    .
    The GC have been updated to correctly collect and calculate
    verbose GC data.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV19217

  • Reported component name

    J9 COMMON CODE

  • Reported component ID

    620700127

  • Reported release

    260

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-04-09

  • Closed date

    2012-04-09

  • Last modified date

    2012-05-20

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

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

    IV21498

Fix information

  • Fixed component name

    J9 COMMON CODE

  • Fixed component ID

    620700127

Applicable component levels

  • R260 PSY

       UP



Document information

More support for: Runtimes for Java Technology
Virtual Machine

Software version: 260

Reference #: IV19217

Modified date: 20 May 2012