IBM Support

IZ16840: SIGBUS OR SIGSEGV IN LIBDB2OSSE LIBRARY IN _GTRACEENTRYVAR OR GTRACEATTACH

Fixes are available

DB2 Version 9.5 Fix Pack 3b for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 4  for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 3a for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 3 for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 4a for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 5 for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 6a for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 7 for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 8 for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 10 for Linux, UNIX, and Windows

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • A program loading the DB2 native libraries (e.g. a CLI
program) may experience a SIGSEGV or SIGBUS crash if the
application references a variable 'g_pTrace'. This is an
internal global variable (i.e. reserved). It is not intended to
be referenced by external applications.

Local fix

  • Do not define any application variables as 'g_ptrace'.

To prevent further issues of this type, this variable will be
renamed to decrease the potential for accidental reference.

Problem summary

  • USERS AFFECTED: Users of applications directly loading db2
native library.
ERROR DESCRIPTION:
A program loading the DB2 native libraries (e.g. a CLI
program) may experience a SIGSEGV or SIGBUS crash if the
application references a variable 'g_pTrace'. This is an
internal global variable (i.e. reserved). It is not intended to
be referenced by external applications.

To prevent further issues of this type, this variable will be
renamed to decrease the potential for accidental reference.

Problem conclusion

  • First fixed in DB2 UDB version 9.5 Fixpak 3.

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IZ16840
    • 

  • Reported component name
    DB2 UDB ESE SOL
    • 

  • Reported component ID
    5765F4102
    • 

  • Reported release
    950
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2008-03-03
    • 

  • Closed date
    2009-04-19
    • 

  • Last modified date
    2009-04-19
    • 





    

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

    
IZ16834
    

    • 

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

    • 



Fix information


    

  • Fixed component name
    DB2 UDB ESE SOL
    • 

  • Fixed component ID
    5765F4102
    • 



Applicable component levels


    

  • R820  PSY
       UP
    • 

  • R910  PSY
       UP
    • 

  • R950  PSY
       UP
    • 








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            19 April 2009
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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