IV18689: CRASH IN CREATETHREADINFOARRAY()

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Error Message: Occasionally in a low-memory environment a
    SIGSEGV/GPF is recieved when user attempts to profile threads
    using the ThreadMXBean management class.
    .
    Stack Trace: (gdb) where
    #0  0x00007f0bf75eb052 in j9dump_create () from
    ./opt/app/ibm/WebSphere/AppServer/java/jre/lib/amd64/compressedr
    efs/libj9prt26.so
    #1  0x00007f0bf7078467 in doSystemDump () from
    ./opt/app/ibm/WebSphere/AppServer/java/jre/lib/amd64/compressedr
    efs/libj9dmp26.so
    #2  0x00007f0bf75f834f in j9sig_protect () from
    ./opt/app/ibm/WebSphere/AppServer/java/jre/lib/amd64/compressedr
    efs/libj9prt26.so
    #3  0x00007f0bf7076fa8 in runDumpFunction () from
    ./opt/app/ibm/WebSphere/AppServer/java/jre/lib/amd64/compressedr
    efs/libj9dmp26.so
    #4  0x00007f0bf707adab in runDumpAgent () from
    ./opt/app/ibm/WebSphere/AppServer/java/jre/lib/amd64/compressedr
    efs/libj9dmp26.so
    #5  0x00007f0bf708adcf in triggerDumpAgents () from
    ./opt/app/ibm/WebSphere/AppServer/java/jre/lib/amd64/compressedr
    efs/libj9dmp26.so
    #6  0x00007f0bf794af59 in generateDiagnosticFiles () from
    ./opt/app/ibm/WebSphere/AppServer/java/jre/lib/amd64/compressedr
    efs/libj9vm26.so
    #7  0x00007f0bf75f834f in j9sig_protect () from
    ./opt/app/ibm/WebSphere/AppServer/java/jre/lib/amd64/compressedr
    efs/libj9prt26.so
    #8  0x00007f0bf794b176 in vmSignalHandler () from
    ./opt/app/ibm/WebSphere/AppServer/java/jre/lib/amd64/compressedr
    efs/libj9vm26.so
    #9  0x00007f0bf794b9d1 in structuredSignalHandler () from
    ./opt/app/ibm/WebSphere/AppServer/java/jre/lib/amd64/compressedr
    efs/libj9vm26.so
    #10 0x00007f0bf75f776f in masterSynchSignalHandler () from
    ./opt/app/ibm/WebSphere/AppServer/java/jre/lib/amd64/compressedr
    efs/libj9prt26.so
    #11 <signal handler called>
    #12 0x00007f0bf5b462b9 in createThreadInfoArray () from
    ./opt/app/ibm/WebSphere/AppServer/java/jre/lib/amd64/compressedr
    efs/libjclscar_26.so
    #13 0x00007f0bf5b476a8 in
    Java_com_ibm_lang_management_ThreadMXBeanImpl_getMultiThreadInfo
    Impl () from
    ./opt/app/ibm/WebSphere/AppServer/java/jre/lib/amd64/compressedr
    efs/libjclscar_26.so
    #14 0x00007f0bf796204f in VMprJavaSendNative () from
    ./opt/app/ibm/WebSphere/AppServer/java/jre/lib/amd64/compressedr
    efs/libj9vm26.so
    .
    

Local fix

Problem summary

  • The problem is caused when we fail to perform suitable checks
    after the createThreadInfoArray call in the JVM
    

Problem conclusion

  • This defect will be fixed in:
    6.0.1 SR3
    6.0.0 SR11
    7.0.0 SR2
    .
    The JVM has been updated to perform suitable error checks after
    the createThreadInfoArray and display an error message when we
    find one.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV18689

  • 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

    2012-04-02

  • Closed date

    2012-04-02

  • Last modified date

    2012-04-02

  • 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

  • R600 PSY

       UP



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Document information


More support for:

Runtimes for Java Technology
Virtual Machine

Software version:

260

Reference #:

IV18689

Modified date:

2012-04-02

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