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IV66662: HANG IN NATIVE STACK COLLECTION GENERATING JAVACORE ON AIX

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Error Message: JVM hang after sending a SIGQUIT signal to the
    JVM to generate a javacore.
    .
    Stack Trace: _global_lock_common(??, ??, ??) at
    0x9000000007f483cpthread_testcancel() at
    0x9000000008011acfdatasync(??) at 0x900000000290904sem_post_r()
    at 0x900000007725850upcall_handler() at
    0x900000007725b5cglobal_lock_ppc_mp() at
    0x90000000081fd38_cond_wait_local(??, ??, ??) at
    0x9000000008172cc_cond_wait(??, ??, ??) at
    0x900000000817c88pthread_cond_wait(??, ??) at
    0x9000000008188dcmonitor_wait_original() at
    0x900000007701010monitor_wait() at
    0x900000007700c5cinternalAcquireVMAccessNoMutexWithMask() at
    0x900000007647e74internalAcquireVMAccessClearStatus() at
    0x900000007648198jclCallThreadSleepInterruptable() at
    0x9000000086c5a70java_lang_Thread_sleep(), line 299 in
    "jlthr.s"javaProtectedThreadProc() at
    0x90000000763e760j9sig_protect() at
    0x900000007717c9cjavaThreadProc() at
    0x90000000763e5d0thread_wrapper() at 0x9000000076fdaf0
    .
    The javacore produced is truncated.
    

Local fix

  • Set -Xdump:java:request=exclusive to switch off the native stack
    collection in javacore,
    see:http://www-01.ibm.com/support/knowledgecenter/SSYKE2_7.0.0/c
    om.ibm.java.aix.70.doc/diag/tools/dumpagents_request.html
    

Problem summary

  • The problem is caused when threads are halted to obtain native
    stack traces for the javacore dump.
    

Problem conclusion

  • The JVM has been updated to prevent the hang from occurring.
    .
    This APAR will be fixed in the following Java Releases:
       6 R1 SR8 FP3   (6.1.8.3)
       7    SR8 FP10  (7.0.8.10)
       7 R1 SR2 FP10  (7.1.2.10)
    .
    Contact your IBM Product's Service Team for these Service
    Refreshes and Fix Packs.
    For those running stand-alone, information about the Service
    Refreshes and Fix Packs can be found at:
               https://www.ibm.com/developerworks/java/jdk/
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV66662

  • 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

    2014-11-06

  • Closed date

    2014-12-03

  • Last modified date

    2014-12-03

  • 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

  • R270 PSY

       UP

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Document Information

Modified date:
21 February 2022