IBM Support

IJ02018: CRASH OR ASSERTION WHILE ATTEMPTING TO ACQUIRE VM ACCESS

Subscribe to this APAR

By subscribing, you receive periodic emails alerting you to the status of the APAR, along with a link to the fix after it becomes available. You can track this item individually or track all items by product.

Notify me when this APAR changes.

Notify me when an APAR for this component changes.

 

APAR status

  • Closed as program error.

Error description

  • Error Message: j9vm.228    *   ** ASSERTION FAILED ** at
    ./VMAccess.cpp:290: (0 == ((vmThread)->publicFlags &
    J9_PUBLIC_FLAGS_VM_ACCESS))
    Message is reported in stderr.
    .
    Stack Trace: N/A
    .
    The issue only happens in a constrained memory environment.
    

Local fix

  • This issue can be potentially alleviated by reducing the amount
    of memory used by the JVM heap by specifying a smaller value for
    -Xmx JVM heap option, or by reducing the number of JIT
    compilation threads by specifying the -XcompilationThreads1
    option on the command line. Note that either of these potential
    workarounds may have an affect on startup and throughput of the
    application.
    

Problem summary

  • The problem is caused by the JIT compiler not properly cleaning
    up VM access when a JIT compilation fails due to an out of
    memory situation.
    

Problem conclusion

  • The JIT has been updated to prevent the assertion or crash from
    happening.
    .
    This APAR will be fixed in the following Java Releases:
       8    SR5 FP6   (8.0.5.6)
    .
    Contact your IBM Product's Service Team for these Service
    Refreshes and Fix Packs.
    For those running stand-alone, information about the available
    Service Refreshes and Fix Packs can be found at:
               https://www.ibm.com/developerworks/java/jdk/
    

Temporary fix

Comments

APAR Information

  • APAR number

    IJ02018

  • Reported component name

    JIT

  • Reported component ID

    620700124

  • Reported release

    130

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-11-20

  • Closed date

    2017-11-20

  • Last modified date

    2017-11-30

  • 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

    JIT

  • Fixed component ID

    620700124

Applicable component levels

  • R130 PSY

       UP

[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSC9HBA","label":"Just In Time (JIT) Compiler"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"130","Edition":"","Line of Business":{"code":"","label":""}}]

Document Information

Modified date:
30 November 2017