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IJ14172: JAVA FAILS WITH SIGSEGV WHEN -XJIT:DISABLEZ10 OPTION IS SUPPLIED

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APAR status

  • Closed as program error.

Error description

  • Error Message: A SIGSEGV/GPF is received when a user runs Java
with the -Xjit:disableZ10 option. It can happen more often if a
low count number is supplied in the JIT option. i.e.
-Xjit:disableZ10,count=0.
.
Stack Trace: N/A
.
N/A

Local fix

  • N/A

Problem summary

  • When a Java class is unresolved, the JIT will need to call VM to
resolve it and load the unresolved class pointer. The
-Xjit:disableZ10 crash happens because of an incorrect address
being used in the z10 class pointer loading sequence.

Problem conclusion

  • The JIT has been updated for z10 and below to load newly
resolved Java class pointers from correct addresses.
.
This APAR will be fixed in the following Java Releases:
   8    SR5 FP26  (8.0.5.26)
.
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
    IJ14172
    • 

  • Reported component name
    JIT
    • 

  • Reported component ID
    620700124
    • 

  • Reported release
    130
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2019-02-26
    • 

  • Closed date
    2019-02-26
    • 

  • Last modified date
    2019-02-26
    • 





    

  • 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


    








      
              
                            

              

              [{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSC9HBA","label":"Just In Time (JIT) Compiler"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"130","Edition":"","Line of Business":{"code":"","label":""}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            26 February 2019
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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