PJ40869: GLOBLC FUNC=CLOSE,OPT=UPDATEWT

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APAR status

  • Closed as program error.

Error description

  • See Problem Summary.
    

Local fix

  • na
    

Problem summary

  • APAR NUMBER:  PJ40869
    PRODUCT:  z/TPF
    FUNCTIONAL AREA:  FORMAT-2 GLOBALS
    SHIPPED IN PUT:  10
    
    ABSTRACT:
    Ensure Close of Format-2 Global after Sync Timeout
    
    PACKAGE CONTENTS:
    Source Segments:
    (C) base/macro/ierrn.mac
    (C) base/rt/cglapi.cpp
    
    Object Only Binaries:
    None.
    
    Configuration Independent Binaries:
    None.
    
    Support Files:
    None.
    
    OTHER BINARIES TO BUILD: YES
    (C) <sys>/obj/cglapi.o
    (C) <sys>/stdlib/libCTAD.so
    (C) <sys>/stdload/CTAD.so
    
    COMMENTS:
    The customer experienced a problem while closing a synchronized
    format-2 global using the update/wait option (OPT=UPDATEWT).
    One of the active processors in the z/TPF complex was not
    available at the time due to a system IPL. As a result, a Sync
    Timeout situation was detected and reported via a SNAP error.
    However, contrary to documentation, the global was not closed
    for the requesting ECB. When the same ECB later attempted to
    re-open the global, a SNAP error was issued indicating that the
    ECB already had the global opened.
    
    The customer also reported that the value for the Sync Timeout
    error (ETPFGLOB_TIMEOUT) was not defined in the macro
    ierrn.mac. It was defined in the C header file errno.h.
    

Problem conclusion

  • SOLUTION:
    Updated macro segment ierrn.mac to add the value for
    ETPFGLOB_TIMEOUT. Also updated segment cglapi.cpp at the
    routine labeled * Return the global descriptor to the available
    list * to add the additional condition in the if statement of
    || (errno == ETPFGLOB_TIMEOUT) to ensure the global is marked
    as closed for this ECB after a timeout condition.
    
    COREQS: NO
    None.
    
    MIGRATION CONSIDERATIONS: NO
    None.
    
    BUILD COMMANDS AND INSTRUCTIONS: YES
    #maketpf commands for linux
    maketpf -f CTAD cglapi.o
    maketpf CTAD link TPF_VERIFY_LINK_REFS=NO
    maketpf CTAD 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/PJ40869.htm
    

Temporary fix

Comments

APAR Information

  • APAR number

    PJ40869

  • Reported component name

    Z/TPF

  • Reported component ID

    5748T1501

  • Reported release

    110

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-02-27

  • Closed date

    2013-04-25

  • Last modified date

    2013-04-25

  • 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 #:

PJ40869

Modified date:

2013-04-25

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