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JR33261: DB2 INSTANCE MIGHT CRASH WHEN EXECUTING A CERTAIN SQL QUERY IN AN SMP ENVIRONMENT

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APAR status

  • Closed as program error.

Error description

  • DB2 instance might crash with SEGV when executing a certain SQL
    query. The crash only occurs in an SMP enabled environment and
    the stack traces should be similar to the following:
    
    sqldAdjustSeqDetPFAmount
    sqlriNljnAdjustPfAmount
    sqlriNljnNonPiped
    sqlriSectInvoke
    ....
    

Local fix

  • Turn off SMP by setting DBM configuration parameter
    INTRA_PARALLEL to OFF
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * the users who execute a certain SQL query in an SMP enabled  *
    * environment.                                                 *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * DB2 instance might crash with SEGV when executing a certain  *
    * SQL query. The crash only occurs in an SMP enabled           *
    * environment and the stack traces should be similar to the    *
    * following:                                                   *
    *                                                              *
    * sqldAdjustSeqDetPFAmount                                     *
    * sqlriNljnAdjustPfAmount                                      *
    * sqlriNljnNonPiped                                            *
    * sqlriSectInvoke                                              *
    * ......                                                       *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Turn off SMP by setting DBM configuration parameter          *
    * INTRA_PARALLEL to OFF                                        *
    ****************************************************************
    

Problem conclusion

  • Problem was first fixed in Version 9.5 Fix Pack 5
    

Temporary fix

Comments

APAR Information

  • APAR number

    JR33261

  • Reported component name

    DB2 UDB ESE WIN

  • Reported component ID

    5765F4101

  • Reported release

    950

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2009-06-05

  • Closed date

    2010-01-19

  • Last modified date

    2010-01-19

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

    JR32750

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

Fix information

  • Fixed component name

    DB2 UDB ESE WIN

  • Fixed component ID

    5765F4101

Applicable component levels

  • R950 PSN

       UP

[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSEPGG","label":"DB2 for Linux, UNIX and Windows"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"950","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
19 January 2010