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IV50404: DAA-ENABLED COMPILED CODE CRASHES IN NULL POINTER CHECK

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Error Message: N/A
.
Stack Trace: N/A
.

Local fix

  • This problem can be avoided with the -Xjit:disableEscapeAnalysis
option.

Problem summary

  • A compiled method in a Java program using DAA (Direct Access
Accelerator) causes the JVM to crash (SIGSEGV), when it attempts
to load from an address that has just passed a null pointer
check. The address is supposed to point to a packed decimal
object, but it is not a valid address.

Problem conclusion

  • This defect will be fixed in:
7.0.0 SR6
6.0.1 SR7
6.0.0 SR15
5.0.0 SR16 FP4
.
The JIT compiler has been updated to avoid generating null
address value in such cases when it is illegal to do so.

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IV50404
    • 

  • Reported component name
    JAVA 5 JIT
    • 

  • Reported component ID
    620500124
    • 

  • Reported release
    500
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2013-10-05
    • 

  • Closed date
    2013-10-05
    • 

  • Last modified date
    2013-10-20
    • 





    

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

    
IV50395
    

    • 

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

    • 



Fix information


    

  • Fixed component name
    JAVA 5 JIT
    • 

  • Fixed component ID
    620500124
    • 



Applicable component levels


    

  • R500  PSN
       UP
    • 








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            20 October 2013
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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