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IV95067: JAVA JIT COMPILER CRASHES UNDER FULL SPEED DEBUG OR HOT CODE REPLACE

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APAR status

  • Closed as program error.

Error description

  • Error Message: N/A
.
Stack Trace: TR_OSRMethodData::addInstruction(int, int)
TR_OSRCompilationData::addInstruction(int, TR_ByteCodeInfo&)
...
.
The JVM crashes during JIT compilation. This problem can only
occur in full speed debug mode, or in hot code replace mode at
optimization level warm or above, although it is especially
unlikely at warm. The problem was first introduced in Java ?7 R1
SR3 FP40 and Java ?8 SR3.

Local fix

  • The issue can be avoided by passing -Xjit:disableOSR.

Problem summary

  • After inlining a method containing an instanceof or checkcast
bytecode instruction whose constant pool entry is unresolved,
the JIT compiler could sometimes mistake a compiler-generated
temporary for a local variable used by the Java bytecode, in
which case the compiler's metadata for on-stack replacement
would be put into an inconsistent state.

Problem conclusion

  • The compiler has been modified so that it will properly identify
and ignore these temporaries for the purpose of on-stack
replacement.
.
This APAR will be fixed in the following Java Releases:
   7 R1 SR4 FP5   (7.1.4.5)
   8    SR4 FP5   (8.0.4.5)
.
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 number
    IV95067
    • 

  • Reported component name
    JIT
    • 

  • Reported component ID
    620700124
    • 

  • Reported release
    130
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2017-04-12
    • 

  • Closed date
    2017-04-12
    • 

  • Last modified date
    2017-05-03
    • 





    

  • 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
    JIT
    • 

  • Fixed component ID
    620700124
    • 



Applicable component levels


    

  • R130  PSY
       UP
    • 








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            03 May 2017
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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