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IZ84497: SYSPROC.DB2LOAD MAY TRAP WHEN INVOKED SIMULTANEOUSLY BY TWO OR MORE APPLICATIONS.

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APAR status

  • Closed as fixed if next.

Error description

  • The SYSPROC.DB2LOAD stored procedure may trap if it is invoked
    simultaneously by two or more applications. The procedure was
    not thread-safe in the new v95 threaded engine architecture.
    The stack of the trap files would usually show a clp routine at
    the top of the stack, like so:
    
    <StackTrace>
    sqloCrashOnCriticalMemoryValidationFailure
    sqlofmblkEx
    clpprs
    clp_parse
    clpParseLoad
    sqluParseAndExecuteLoad
    db2load
    sqloInvokeFnArgs
    
    or
    
    <Stack Trace>
    sqloCrashOnCriticalMemoryValidationFailure
    sqlofmblkEx
    clpPostLoadFreeDynMem
    sqluParseAndExecuteLoad
    db2load
    sqloInvokeFnArgs
    
    This APAR fixes the this thread-safety issue.
    

Local fix

  • Avoid multiple invocations of sysproc.db2load at the same time.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * Users trying to run sysproc.db2load concurrently.            *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * The SYSPROC.DB2LOAD stored procedure may trap if it          *
    * isinvoked simultaneously by two or more applications.        *
    * Theprocedure was not thread-safe in the new v95 threaded     *
    * enginearchitecture.                                          *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Avoid multiple invocations of sysproc.db2load at the         *
    * sametime.                                                    *
    ****************************************************************
    

Problem conclusion

  • Fix in V95 FP7
    

Temporary fix

Comments

APAR Information

  • APAR number

    IZ84497

  • Reported component name

    DB2 UDB ESE AIX

  • Reported component ID

    5765F4100

  • Reported release

    950

  • Status

    CLOSED FIN

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2010-09-08

  • Closed date

    2010-10-25

  • Last modified date

    2010-10-25

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

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

    IC71037 IC71398

Fix information

Applicable component levels

  • R950 PSN

       UP

  • R950 PSY

       UP

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

Document Information

Modified date:
07 October 2021