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PH24735: ABENDEC6 0BF20050 DURING PROCESSING OF BPX1CAN CALL

A fix is available

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APAR status

  • Closed as program error.

Error description

  • ABENDEC6 with reason 0BF20050 is occurring during processing of
    a BPX1CAN call to cancel any previous
    asynchronous BPX1 calls (e.g. BPX1RCV, BPX1POL) when the Queue
    Manager is shutting down. CHINIT trace
    captured multiple instances of the failing call. The issue is
    that the BPX1CAN call added by PI69008
    passes a pointer to the aioCb request which has its File
    Descriptor (aioFD) unset. This results in the
    new call failing before it is able to cancel the previous
    asynchronous BPX1 call. MQ Development would
    revise this processing so that the File Descriptor can be
    correctly set on the aioCb request made to
    cancel previous asynchronous BPX1 calls during Queue Manager
    shut down.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of IBM MQ for z/OS Version 9       *
    *                 Release 0 Modification 0                     *
    ****************************************************************
    * PROBLEM DESCRIPTION: An EC6 abend, reason code 0BF20050      *
    *                      is seen in logrec under specific        *
    *                      conditions involving incorrect          *
    *                      File Descriptor logic                   *
    ****************************************************************
    The problem occurs during Queue Manager Shutdown when an
    incorrect File Descriptor value is used during
    the logic processing for async IO cancelling.
    

Problem conclusion

  • The parameters used for the asynchronous IO cancellation
    processing upon Queue Manager Shutdown have been corrected to
    ensure the correct File Descriptor value is used and that the
    EC6-0BF20050 abend does not occur.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PH24735

  • Reported component name

    IBM MQ Z/OS V9

  • Reported component ID

    5655MQ900

  • Reported release

    000

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2020-04-23

  • Closed date

    2020-05-27

  • Last modified date

    2020-09-01

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

    PH19803

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

    UI69700

Modules/Macros

  • CSQXADPO
    

Fix information

  • Fixed component name

    IBM MQ Z/OS V9

  • Fixed component ID

    5655MQ900

Applicable component levels

  • R000 PSY UI69700

       UP20/08/08 P F008

Fix is available

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Document Information

Modified date:
03 September 2020