IC91949: ABEND POSSIBLE IN CLI_SQLDISCONNECT WITH > 512 DATABASE HANDLES ALLOCATED IN MULTITHREAD ENVIRONMENT

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You can track all active APARs for this component.

APAR status

  • Closed as fixed if next.

Error description

  • When a multithreaded CLI application has over 512 database
    handles for one environment handle, then DB2 CLI code
    reallocates an internal structure.
    There is a very small timing window that when a SQLDisconnect (
    which calls CLI_sqlDisconnect ) is invoked as this threshold is
    reached, stale memory can be referenced, leading to a crash of
    the application.
    
    CLI_sqlDisconnect will be the crashing function.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * In a multi threaded environment if some application uses     *
    * more than 512 database handles, the application may crash.   *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to product version v.97.fp9                          *
    ****************************************************************
    

Problem conclusion

Temporary fix

Comments

APAR Information

  • APAR number

    IC91949

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    970

  • Status

    CLOSED FIN

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-04-29

  • Closed date

    2013-12-18

  • Last modified date

    2013-12-18

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

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

    IC95394 IC96281

Fix information

Applicable component levels

  • R970 PSY

       UP



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Document information


More support for:

DB2 for Linux, UNIX and Windows

Software version:

9.7

Reference #:

IC91949

Modified date:

2013-12-18

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