IBM Support

IV43746: CONFUSING ENTRY/EXIT TRACEPOINT ORDER FOR GETOBJECTMONITOROWNER

Subscribe

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
.
The tracepoint for getObjectMonitorOwner() often resembles:
06:03:13.840536835  0x24134100   j9vmutil(j9jvmti).4    Entry
  >getObjectMonitorOwner (jvm=0x53cca8, object=0x303db88,
pcount=0x0)
06:03:13.840536835  0x24134100   j9vmutil(j9jvmti).5    Exit
  <getObjectMonitorOwner (owner=0x0, count=0)
06:03:13.840537137  0x24134100   j9vmutil(j9jvmti).5    Exit
  <getObjectMonitorOwner (owner=0x0, count=0)
06:03:13.840537137  0x24134100   j9vmutil(j9jvmti).4    Entry
  >getObjectMonitorOwner (jvm=0x53cca8, object=0x2fa8e18,
pcount=0x0)
06:03:13.840537137  0x24134100   j9vmutil(j9jvmti).5    Exit
  <getObjectMonitorOwner (owner=0x0, count=0)
06:03:13.840537439  0x24134100   j9vmutil(j9jvmti).5    Exit
  <getObjectMonitorOwner (owner=0xabae600, count=0)
06:03:13.840537439  0x24134100   j9vmutil(j9jvmti).4    Entry
  >getObjectMonitorOwner (jvm=0x53cca8, object=0x226d54c0,
pcount=0x0)
06:03:13.840537741  0x24134100   j9vmutil(j9jvmti).4    Entry
  >getObjectMonitorOwner (jvm=0x53cca8, object=0x303db38,
pcount=0x0)
06:03:13.840537741  0x24134100   j9vmutil(j9jvmti).5    Exit
  <getObjectMonitorOwner (owner=0x0, count=0)
Since the function is called asynchronously, lacking 'object'
information in the Exit tracepoint makes debugging painful

Local fix

  • N/A

Problem summary

  • The Exit tracepoint for getObjectMonitorOwner() did not contain
sufficient information to identify the object being queried

Problem conclusion

  • This defect will be fixed in:
7.0.0 SR5
6.0.1 SR6
6.0.0 SR14
.
'object' information is now included in Exit tracepoint for
getObjectMonitorOwner

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IV43746
    • 

  • Reported component name
    J9 COMMON CODE
    • 

  • Reported component ID
    620700127
    • 

  • Reported release
    260
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2013-06-03
    • 

  • Closed date
    2013-06-03
    • 

  • Last modified date
    2013-06-03
    • 





    

  • 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
    J9 COMMON CODE
    • 

  • Fixed component ID
    620700127
    • 



Applicable component levels


    

  • R260  PSY
       UP
    • 

  • R600  PSY
       UP
    • 








      
              
                            

              

              [{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSNVBF","label":"Runtimes for Java Technology"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"6.1","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            22 February 2022
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
Page Feedback