IV19636: CRASH IN JAVA_COM_IBM_LANG_MANAGEMENT_THREADMXBEANIMPL_GETMULTIT HREADINFOIMPL

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APAR status

  • Closed as program error.

Error description

  • Error Message: Type=Segmentation error vmState=0x00000000
    J9Generic_Signal_Number=00000004 Signal_Number=0000000b
    Error_Value=00000000 Signal_Code=00000001
    __kernel_sigtramp_rt64+0x0 (0x0000000000100418)
    (0x000004000614EE9C <OSB>libjclse7b_26.so+0x5ee9c<CSB>)
    (0x000004000614CADC <OSB>libjclse7b_26.so+0x5cadc<CSB>)
    Java_com_ibm_lang_management_ThreadMXBeanImpl_getMultiThreadInfo
    Impl+0xfff935a0 (0x000004000614D450
    <OSB>libjclse7b_26.so+0x5d450<CSB>)
    (0x0000040048D54860 <OSB><unknown>+0x0<CSB>)
    (0x0000040000BDF1A0 <OSB>libj9vm26.so+0xaf1a0<CSB>)
    (0x0000040000CEBC7C <OSB>libj9prt26.so+0x3bc7c<CSB>)
    (0x0000040000BDF018 <OSB>libj9vm26.so+0xaf018<CSB>)
    (0x0000040000C5BC6C <OSB>libj9thr26.so+0xbc6c<CSB>)
    (0x0000008005ACBFC0 <OSB>libpthread.so.0+0xbfc0<CSB>)
    clone+0xfff58c90 (0x00000080058DFF28
    <OSB>libc.so.6+0x11ff28<CSB>)
    ---------------------------------------
    JVMDUMP039I Processing dump event "gpf", detail "" at 2012/01/31
    11:20:49 - please wait.
    .
    Stack Trace: #11 <signal handler called>
    #12 0x000004000616f4f8 in .saveObjectRefs () from
    libjclse7b_26.so
    #13 0x000004000616d0dc in .getArrayOfThreadInfo ()
       from libjclse7b_26.so
    #14 0x000004000616da50 in
    .Java_com_ibm_lang_management_ThreadMXBeanImpl_getMultiThreadInf
    oImpl ()
       from libjclse7b_26.so
    #15 0x000004000dbe1bd0 in ?? ()
    #16 0x0000040000bdf220 in .javaProtectedThreadProc () from
    libj9vm26.so
    #17 0x0000040000cebc7c in .j9sig_protect () from libj9prt26.so
    #18 0x0000040000bdf098 in .javaThreadProc () from libj9vm26.so
    #19 0x0000040000c5bc6c in .thread_wrapper () from libj9thr26.so
    #20 0x000000806210c0d0 in .start_thread () from
    /lib64/libpthread.so.0
    #21 0x000000806201029c in .__clone () from /lib64/libc.so.6
    .
    

Local fix

Problem summary

  • Crash caused by mishandling JIT optimized object monitors.
    

Problem conclusion

  • This defect will be fixed in:
    7.0.0 SR1
    6.0.1 SR2
    6.0.0 SR11
    .
    The JVM has been updated to handle optimized object monitors
    correctly.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV19636

  • 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

    2012-04-12

  • Closed date

    2012-04-12

  • Last modified date

    2012-04-12

  • 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

  • R600 PSY

       UP



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Document information


More support for:

Runtimes for Java Technology
Virtual Machine

Software version:

260

Reference #:

IV19636

Modified date:

2012-04-12

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