IV79708: HANG IN JVM TRACE ENGINE DURING SHUTDOWN

APAR status

• Closed as program error.

Error description

• Error Message: JVM hangs during shutdown, when using -Xtrace
  options to write trace data to a file.
  .
  Stack Trace: ZwWaitForSingleObject+0x15 (0x7751F891
  <OSB>ntdll+0x1f891<CSB>)
  WaitForSingleObjectEx+0x43 (0x76DA1194
  <OSB>kernel32+0x11194<CSB>)
  WaitForSingleObject+0x12 (0x76DA1148 <OSB>kernel32+0x11148<CSB>)
  monitor_wait_original+0x329 (0x00033939
  <OSB>J9THR24+0x3939<CSB>)
  j9thread_init+0x2a (0x000330BA <OSB>J9THR24+0x30ba<CSB>)
  twEventWait+0x29 (0x003E14C9 <OSB>j9trc24+0x14c9<CSB>)
  waitEvent+0x14 (0x6981CE44 <OSB>j9ute24+0xce44<CSB>)
  utsTerminate+0x24f (0x69811D0F <OSB>j9ute24+0x1d0f<CSB>)
  reportVMTermination+0x1e (0x003E2A7E <OSB>j9trc24+0x2a7e<CSB>)
  J9VMDllMain+0xa50 (0x003E4350 <OSB>j9trc24+0x4350<CSB>)
  runJ9VMDllMain+0xcd (0x0029752D <OSB>j9vm24+0x2752d<CSB>)
  runShutdownStageJvmtiFirst+0x4e (0x0029760E j9vm24+0x2760e<CSB>)
  runShutdownStage+0x47 (0x0029B9E7 <OSB>j9vm24+0x2b9e7<CSB>)
  runExitStages+0x47 (0x0029C3F7 <OSB>j9vm24+0x2c3f7<CSB>)
  exitJavaVM+0x141 (0x0029C971 <OSB>j9vm24+0x2c971<CSB>)
  .
  JVM trace options in use:
  -Xtrace:maximal={j9vm,mt},methods={*.*()},suspend,trigger=method
  {java/lang/Shutdown.sequence,resume},output=output.trc
  

Local fix

Problem summary

• The problem is caused when the trace file writing thread fails
  to terminate correctly.
  

Problem conclusion

• The JVM has been updated to prevent the JVM from hanging if the
  trace file writing thread fails to terminate correctly.
  .
  This APAR will be fixed in the following Java Releases:
     8    SR2 FP10  (8.0.2.10)
  .
  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 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

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