IV01630: AN ASSERTION IS RECIEVED WHEN WORK PACKETS OVERFLOW OCCUR FOR GC POLICY 'BALANCED'

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APAR status

  • Closed as program error.

Error description

  • Error Message: j9mm.107    *   ** ASSERTION FAILED ** at
    ParallelTask.cpp:71: ((_syncPointWorkUnitIndex ==
    env->getWorkUnitIndex()))
    .
    Stack Trace: N/A
    .
    

Local fix

  • Work Packets Overflow Handler for "Balanced" might fail if Work
    Packets Overflow occur while GC is running in concurrent mode.
    Problem may be avoided by increasing of work packets number by
    specifying -Xgcworkpackets<N> where <N> is a number of work
    packets, will be rounded down to be multiple of 5 or using GC
    policy other then "balanced"
    

Problem summary

  • Work Packets Overflow Handler does not work in "balanced" GC
    policy
    

Problem conclusion

  • This defect will be fixed in:
    6.0.1 FP1
    .
    JVM has been uprated to prevent this problem in Work Packets
    Overflow Handler
    .
    To obtain the fix:
    Install build 20110308 or later
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV01630

  • 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

    2011-06-12

  • Closed date

    2011-06-12

  • Last modified date

    2011-06-12

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

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

Fix information

  • Fixed component name

    J9 COMMON CODE

  • Fixed component ID

    620700127

Applicable component levels

  • R260 PSY

       UP



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Document information


More support for:

Runtimes for Java Technology
Virtual Machine

Software version:

260

Reference #:

IV01630

Modified date:

2011-06-12

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