IBM Support

IV57318: ILLEGAL INSTRUCTION EXCEPTION IN COMPILED JAVA METHOD ON Z/LINUX

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APAR status

  • Closed as program error.

Error description

  • Error Message: An illegal instruction exception is raised in an
AOT-compiled method when a Java program is being run on Linux on
System z with -Xshareclasses enabled.
.
Stack Trace: N/A
.

Local fix

  • This problem can be avoided by disabling class sharing, or by
setting the JVM option -Xaot:exclude={full method
name},loadExclude={full method name} for the method that is
causing the issue. Disabling class sharing may cause some
performance degradation.

Problem summary

  • The problem is caused by missing relocations on some method
calls in an AOT-compiled method on Linux.

Problem conclusion

  • This APAR will be fixed in the following Java Releases:
   7 R1 SR1       (7.1.1.0)
   7    SR7       (7.0.7.0)
   6 R1 SR8       (6.1.8.0)
   6    SR16      (6.0.16.0)
.
The JIT compiler has been updated to generate the relocations
correctly.

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IV57318
    • 

  • Reported component name
    JIT
    • 

  • Reported component ID
    620700124
    • 

  • Reported release
    260
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2014-03-22
    • 

  • Closed date
    2014-04-02
    • 

  • Last modified date
    2014-04-02
    • 





    

  • 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
    • 

  • R260  PSY
       UP
    • 

  • R600  PSY
       UP
    • 








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            02 April 2014
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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