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IV19003: CRASH FINDLOADEDSHAREDLIBRARY

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Error Message: Occasionally, a SIGSEGV/GPF is received when
customer tries to load a shared library using System.loadLibrary
call
.
Stack Trace: pool_startDo
findLoadedSharedLibrary
classLoaderRegisterLibrary
openNativeLibrary
registerNativeLibrary
java_lang_ClassLoader_loadLibraryWithPath
javaProtectedThreadProc
j9sig_protect
javaThreadProc
thread_wrapper
_pthread_body
.

Local fix

  • 



Problem summary


    

  • There is a potential race condition that may result in a crash
due to classloader attempting to load a shared library and
another thread is modifying the classloader's resource
containing shared library data.

    



Problem conclusion


    

  • This defect will be fixed in:
6.0.0 SR11
.
The JVM has been updated to ensure that a lock is held at the
appropriate time while modifying a classloader's resource.

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IV19003
    • 

  • Reported component name
    J9 COMMON CODE
    • 

  • Reported component ID
    620700127
    • 

  • Reported release
    600
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2012-04-04
    • 

  • Closed date
    2012-04-04
    • 

  • Last modified date
    2012-05-19
    • 





    

  • 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
    J9 COMMON CODE
    • 

  • Fixed component ID
    620700127
    • 



Applicable component levels


    

  • R600  PSY
       UP
    • 








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            19 May 2012
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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