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IT31711: POSSIBLE TRAP (SEGV) IN PDEDUHOLDSLATCHES() WHEN RUNNING DB2START

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • The stacks might vary a bit but you would see something like
    this one below that
    includes pdLog() and pdEDUHoldsLatches():
    
        #0  0x00007f2f1510019d in pdEDUHoldsLatches ()
        #1  0x00007f2f152b1b51 in pdLogInternal ()
        #2  0x00007f2f152d0d6f in pdLog ()
        #3  0x000000000040cbad in DB2main ()
        #4  0x00007f2f1ad596bb in sqloEDUEntry ()
    
    The indicator here stays pdEDUHoldsLatches ()
    
    In this specific case the problem was that the license resticted
    the number of CPU cores and attempted
    to print the following message when it trapped:
    
      Due to the license limitation, the instance is limited to
    cores: NNN
    
    However it might be possible to hit the same issue in some other
    conditions.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * all                                                          *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to Db2 11.1.4.6 or higher                            *
    ****************************************************************
    

Problem conclusion

  • Upgrade to Db2 11.1.4.6 or higher
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT31711

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    B10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2020-01-31

  • Closed date

    2021-03-31

  • Last modified date

    2021-03-31

  • 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

    DB2 FOR LUW

  • Fixed component ID

    DB2FORLUW

Applicable component levels

  • RB10 PSN

       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":"11.1","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
03 May 2022