IBM Support

IV84236: ASSERTION ERROR - MEMORY CORRUPTION DETECTED

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Error Message: j9prt.748    *   ** ASSERTION FAILED ** at
    ../omr/port/common/j9memtag.c:141: ((memoryCorruptionDetected))
    .
    Stack Trace: unwrapBlockAndCheckTags
    j9mem_free_memory
    freeStackWalkCaches
    Java_java_security_AccessController_getAccSnapshot
    .
    Expected AccessControlException when loading a class from a
    restricted package.
    

Local fix

  • This issue can be worked around using the -Xverify:none option.
    Note however that this may lead to unexpected behaviour
    previously prevented by the verification.
    

Problem summary

  • The problem is caused by attempting to load a class from a
    restricted package as part of class initialization. The issue
    only occurs when the security manager is enabled.
    

Problem conclusion

  • The JVM has been updated to avoid freeing an invalid pointer.
    .
    This APAR will be fixed in the following Java Releases:
       8    SR3       (8.0.3.0)
    .
    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

    IV84236

  • Reported component name

    J9 COMMON CODE

  • Reported component ID

    620700127

  • Reported release

    270

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2016-04-28

  • Closed date

    2016-04-28

  • Last modified date

    2016-04-28

  • 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

  • R270 PSY

       UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSNVBF","label":"Runtimes for Java Technology"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.0","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
22 February 2022