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PI77743: 5C6-00E50050 DUE TO A PROBLEM WITH THE RECOVERY PROCESSING IN CSQMEOTC WHEN HANDLING THE SB0A ABEND

A fix is available

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APAR status

  • Closed as program error.

Error description

  • The SB0A abend is occurring as CSQMEOTC is
    issuing a CIRB with IQETCB set to an invalid
    TCB address, x0000081F.
    The reason for this is that CSQMEOTC is at
    V710 and is expecting a control block (the BLOA).
    .
    The invalid TCB address in R4 is occurring
    due to the fact that there is an incompatibility
    between the MQ code in the application address
    space and the code in the queue-manager
    (CSQMEOTC is loaded by the queue-manager into
    global storage and executes in the application
    address space).
    
    Additional Symptom(s) Search Keyword(s):
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of WebSphere MQ for z/OS           *
    *                 Version 7 Release 1 Modification 0.          *
    ****************************************************************
    * PROBLEM DESCRIPTION: 5C6-00E50050 due to a problem with      *
    *                      recovery processing in CSQMEOTC when    *
    *                      handling an SB0A ABEND.                 *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    An SB0A abend occurs when the CHINIT address space EOT processor
    CSQMEOTC passes an invalid TCB address on a CIRB create IRB
    call. The TCB address is obtained from the BLOA control block,
    The invalid TCB address arises due to an incompatibility between
    the MQ code in the application address space and the code in the
    queue-manager. In this case the application address space is at
    V600 level, but the queue-manager is at V710. The V710 BLOA
    field AC_ConsumerTCB which is expected to contain the TCB
    address is at an offset past the end of the V600 BLOA which was
    passed to CSQMEOTC.
    Subsequent recovery processing in CSQMEOTC fails with message
    CSQV086E reason 00E50054 because a local lock is retained too
    long, preventing later recovery processing from running. The
    queue-manager terminates abnormally.
    .
    Additional keywords: MSGCSQV086E
    

Problem conclusion

  • CSQMEOTC recovery processing has been updated to release the
    local lock earlier, allowing later recovery processing to
    complete normally.
    100Y
    CSQMEOTC
    

Temporary fix

  • *********
    * HIPER *
    *********
    

Comments

APAR Information

  • APAR number

    PI77743

  • Reported component name

    WMQ Z/OS V7

  • Reported component ID

    5655R3600

  • Reported release

    100

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-03-07

  • Closed date

    2017-10-19

  • Last modified date

    2018-01-03

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

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

    PI88214 PI88216 UI51262

Modules/Macros

  • CSQMEOTC
    

Fix information

  • Fixed component name

    WMQ Z/OS V7

  • Fixed component ID

    5655R3600

Applicable component levels

  • R100 PSY UI51262

       UP17/12/19 P F712 ¢

Fix is available

  • Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.

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Document Information

Modified date:
03 January 2018