IV77682: JAVA SEGMENTATION ERROR WITH VMSTATE=0X0005FF05 ON X86

PI50090: SHIP JDK IV77682 AS AN IFIX FOR WAS 8.5.5.X FOR SDK 7.1
PI50092: SHIP JDK IV77682 AS AN IFIX FOR WAS 8.5.5.X FOR SDK 7

APAR status

• Closed as program error.

Error description

• Error Message: JVM crashes with segmentation error
  vmState=0x0005ff05 on x86 platforms
  .
  Stack Trace: TR_J9VM::getResolvedVirtualMethod
  TR_ResolvedJ9Method::getResolvedVirtualMethod
  CollectImplementors::visitSubclass
  TR_SubclassVisitor::visitSubclasses
  TR_SubclassVisitor::visitSubclasses
  TR_SubclassVisitor::visit
  TR_ClassQueries::collectImplementorsCapped
  TR_PersistentCHTable::findSingleAbstractImplementer
  TR_X86CallSite::setupVirtualGuardInfo
  TR_X86CallSite::TR_X86CallSite
  TR_X86PrivateLinkage::buildDirectDispatch
  TR_X86TreeEvaluator::performCall
  .
  This problem only occurs on systems using the x86 architecture.
  

Local fix

• The problem can be avoided with the Java option
  -Xjit:disableInvariantArgumentPreexistence
  Note that this may affect performance.
  

Problem summary

• During a method compilation, if new classes are loaded during
  the compilation process, the JIT compiler can crash because it
  will receive inconsistent answers from the query asking if a
  virtual method is overriden.
  

Problem conclusion

• The JIT compiler has been updated to handle the inconsistency
  caused by classes loading during compilation process.
  .
  This APAR will be fixed in the following Java Releases:
     7 R1 SR3 FP20  (7.1.3.20)
     8    SR2           (8.0.2.0)
     6    SR16 FP15 (6.0.16.15)
     7    SR9 FP20  (7.0.9.20)
     6 R1 R8 FP15  (6.1.8.15)
  .
  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/
  
  Update: Corrected the release information.
  

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

  JIT

• Fixed component ID

  620700124

Applicable component levels

• R130 PSY

     UP

• R600 PSY

     UP

• R260 PSY

     UP