PJ40972: CORRECT OPR-009323 ERROR

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APAR status

  • Closed as program error.

Error description

  • See Problem Summary.
    

Local fix

  • na
    

Problem summary

  • APAR NUMBER:  PJ40972
    PRODUCT:  z/TPF
    FUNCTIONAL AREA:  MQS SUPPORT
    SHIPPED IN PUT:  10
    
    ABSTRACT:
    With PJ30737, writing z/TPF WebSphere MQ sweeper trace log
    entries to a z/TPFCS BLOB may result in an OPR-9323 (system
    error 009323).
    
    PACKAGE CONTENTS:
    Source Segments:
    (C) base/rt/cmqmgc.cpp
    
    Object Only Binaries:
    None.
    
    Configuration Independent Binaries:
    (C) base/lib/libCMQS.so
    (C) base/load/CMQS.so
    (C) base/obj/cmqmgc.o
    
    Support Files:
    base/lst/CMQS.map
    base/lst/cmqmgc.lst
    
    OTHER BINARIES TO BUILD: NO
    None.
    
    COMMENTS:
    With the addition of PJ30737, z/TPF WebSphere MQ sweeper trace
    enhancements, queue trace entries are written to a z/TPF
    collection support (z/TPFCS) BLOB. This allows the trace
    entries to be saved over an IPL.
    If two processes attempt to write to the same Trace Log BLOB
    that might result in system error 009323 (MQSERIES UNEXPECTED
    TO2 ERROR) out of segment cmqmgc.cpp with the following
    diagnostics: "-write Trace Log BLOB error", the persistent
    identifier (PID) of the BLOB, and "-6 - UPDATE SEQUENCE COUNTER
    MISMATCH". This occurs because the z/TPFCS BLOB is not locked
    and updates are managed by the use of a sequence number. The
    routine that writes the trace data reads the BLOB then writes
    the update; if another process updates the BLOB after it is
    read and before it is written, a z/TPFCS sequence error
    mismatch will result.
    

Problem conclusion

  • SOLUTION:
    The z/TPF WebSphere MQ sweeper trace has been updated to check
    for a sequence error. If a sequence error is detected, the BLOB
    is re-read and re-written until it completes without error.
    
    COREQS: NO
    None.
    
    MIGRATION CONSIDERATIONS: NO
    None.
    
    BUILD COMMANDS AND INSTRUCTIONS: YES
    #maketpf commands for linux
    maketpf -f CMQS cmqmgc.o
    maketpf CMQS link TPF_VERIFY_LINK_REFS=NO
    maketpf CMQS link
    
    UPDATED INFORMATION UNITS: NO
    None.
    
    See your IBM representative if you need additional information.
    
    DOWNLOAD INSTRUCTIONS:
    http://www.ibm.com/software/htp/tpf/maint/maintztpf.html
    
    APAR URL:
    http://www.ibm.com/software/htp/tpf/ztpfmaint/put10/PJ40972.htm
    

Temporary fix

Comments

APAR Information

  • APAR number

    PJ40972

  • Reported component name

    Z/TPF

  • Reported component ID

    5748T1501

  • Reported release

    110

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-02-05

  • Closed date

    2013-04-05

  • Last modified date

    2013-04-05

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

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

Fix information

  • Fixed component name

    Z/TPF

  • Fixed component ID

    5748T1501

Applicable component levels

  • R110 PSY

       UP



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Document information


More support for:

TPF
z/TPF

Software version:

110

Reference #:

PJ40972

Modified date:

2013-04-05

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