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LI74231: DB2 crash with SIGSEGV in sqlnq_qtbqunchild2 or sqlnq_qtboprparent2

Fixes are available

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

  • DB2 instance abend with SIGSEGV (signal 11) in either
sqlnq_qtbqunchild2 or sqlnq_qtboprparent2 function during query
processing.

Here are some examples of the SIGSEGV traps -

Example #1 -

_ZN17sqlnq_qtbqunchild2ppEv
_Z17sqlnr_sop_fix_hxpP9sqlnq_oprPiP3loc
_Z21sqlnr_setophxp_actionP10sqlnr_qrwaPiP14sqlnr_progress
_Z10sqlnr_compPiiP16sqlnr_rule_stateP10sqlnr_qrwaP14sqlnr_progre
ss
_Z9sqlnr_seqPiP10sqlnr_qrwaP14sqlnr_progressP12sqlnr_rclass
...

Example #2 -

_ZN18sqlnq_qtboprparent2opEv
_Z17sqlnr_sop_fix_hxpP9sqlnq_oprPiP3loc
_Z21sqlnr_setophxp_actionP10sqlnr_qrwaPiP14sqlnr_progress
_Z10sqlnr_compPiiP16sqlnr_rule_stateP10sqlnr_qrwaP14sqlnr_progre
ss
_Z9sqlnr_seqPiP10sqlnr_qrwaP14sqlnr_progressP12sqlnr_rclass
...

Local fix

  • n/a

Problem summary

  • Users affected: All.

Problem Description:
See "ERROR DESCRIPTION" section for more details.

Problem Summary:
Without this APAR, customer is exposed to the issue
as described in the "ERROR DESCRIPTION" section.

Problem conclusion

  • First fixed in DB2 Version 9.5, Fixpack 5

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    LI74231
    • 

  • Reported component name
    DB2 UDE ESE LIN
    • 

  • Reported component ID
    5765F4104
    • 

  • Reported release
    950
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2009-03-04
    • 

  • Closed date
    2010-02-04
    • 

  • Last modified date
    2010-02-04
    • 





    

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

    
LI74171
    

    • 

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

    • 



Fix information


    

  • Fixed component name
    DB2 UDE ESE LIN
    • 

  • Fixed component ID
    5765F4104
    • 



Applicable component levels


    

  • R950  PSY
       UP
    • 








      
              
                            

              

              [{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSEPGG","label":"DB2 for Linux- UNIX and Windows"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"950","Line of Business":{"code":"LOB10","label":"Data and AI"}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            17 October 2021
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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