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IZ80937: JAVA JIT CRASH COMPILING CLASS.NEWINSTANCEPROTOTYPE

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Error Message: A SIGSEGV/ABEND is received during the JIT
compilation of a method (e.g.
java/lang/Class.newInstancePrototype). This issue affects both
Java 5 and Java 6, but only on z/OS or z/Linux.
.
Stack Trace: genInitObjectHeader
TR_S390TreeEvaluator::VMnewEvaluator
TR_S390TreeEvaluator::newObjectEvaluator
TR_CodeGenerator::evaluate
TR_S390TreeEvaluator::treetopEvaluator
TR_CodeGenerator::evaluate
TR_CodeGenerator::doInstructionSelection
TR_CodeGenerator::generateCodePhase1
TR_CodeGenerator::generateCode
TR_Compilation::compile
TR_CompilationInfo::compile
TR_CompilationInfo::wrappedCompile
.

Local fix

  • This issue can be worked around by using the
-Xjit:disableAllocationInlining option, which may incur a slight
performance degradation in some applications.

Problem summary

  • The problem is caused by a rare case in the JIT while inlining
object allocations.

Problem conclusion

  • This defect will be fixed in:
6.0.0 SR8
5.0.0 SR12
.
More conservative checks are added in place to prevent the
failing scenario.
.
To obtain the fix:
Install build 20100217 or later

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IZ80937
    • 

  • Reported component name
    JIT
    • 

  • Reported component ID
    620700124
    • 

  • Reported release
    600
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2010-07-26
    • 

  • Closed date
    2010-07-26
    • 

  • Last modified date
    2010-07-27
    • 





    

  • APAR is sysrouted FROM one or more of the following:
    

    • 

  • APAR is sysrouted TO one or more of the following:
    

    
IZ80938
    

    • 



Fix information


    

  • Fixed component name
    JIT
    • 

  • Fixed component ID
    620700124
    • 



Applicable component levels


    

  • R600  PSN
       UP
    • 








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            27 July 2010
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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