PJ40768: RCAT AND IMAGE FALLBACK

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APAR status

  • Closed as program error.

Error description

  • See Problem Summary.
    

Local fix

  • PUNCH '* '
    
    .CRASTD   ANOP
    
    PUNCH '         DC    XL1''00''           COHA IMAGE NUMBER'
    
    PUNCH '         DC    XL1''00''           COHA PROGRAM AREA
    NUMBER'
    
    rather than:
    
    PUNCH '         DC    XL1''00''           COHA IMAGE NUMBER'
    
    PUNCH '         DC    XL1''00''           COHA PROGRAM AREA
    NUMBER'
    
    PUNCH '* '
    
    .CRASTD   ANOP
    
    The branch to  CRASTD is being taken during the build of sip and
    the two new fields are not being generated in the resulting
    ctkc.
    

Problem summary

  • APAR NUMBER:  PJ40768
    PRODUCT:  z/TPF
    FUNCTIONAL AREA:  MESSAGE ROUTER
    SHIPPED IN PUT:  10
    
    ABSTRACT:
    With PJ40442 applied, the RCIT may be built from RCAT records
    on every IPL.
    
    PACKAGE CONTENTS:
    Source Segments:
    (C) base/macro/sip/skctkc.mac
    
    Object Only Binaries:
    None.
    
    Configuration Independent Binaries:
    None.
    
    Support Files:
    None.
    
    OTHER BINARIES TO BUILD: YES
    (C) <sys>/obj/ctkc.o
    (C) <sys>/load/CTKC.kpt
    
    COMMENTS:
    APAR PJ40442 involved making a design change to rebuild RCIT
    records from the RCAT when an IPL occurs and both the image
    number and program area number selected are different than the
    previous IPL. This involved adding new fields to the CTKC
    keypoint and requires a new keypoint be loaded. However, if the
    keypoint is generated through z/TPF SIP, the keypoint is
    generated with an incorrect length and this can cause the RCIT
    to be rebuilt from file on every IPL of the z/TPF system.
    
    The skctkc.mac macro has been modified to create ctkc.asm with
    the correct length. Customers may still use the manual method
    of updating the length field in CTKC on their systems, as
    described in the migration considerations section of APAR
    PJ40442.
    

Problem conclusion

  • SOLUTION:
    The skctkc.mac macro has been modified to punch the correct
    length computation, so that when ctkc.asm is created using the
    SIP generation process that ctkc will have the correct length
    value when it is assembled. Customers may still use the manual
    method of updating the length field in CTKC on their systems,
    as described in the migration considerations section of APAR
    PJ40442.
    
    COREQS: NO
    None.
    
    MIGRATION CONSIDERATIONS: YES
    System generation process (SIP) changes:
    In order for conn.asm to properly save the current image number
    and program area number during an IPL, CTKC must be reassembled
    and reloaded in order for the keypoint size to be updated in
    the keypoint record on file. If the keypoint is not reloaded,
    then conn.asm will not properly recognize if the image number
    and program area number match the values from the previous IPL,
    as such will force a reload of the RCIT records from the RCAT
    saved on file during each IPL. In addition, the first time an
    IPL is done after installing this APAR, the processor load mask
    will be reset in COHA, which will therefore cause each
    processor in the loosely-coupled complex to rebuild its RCIT
    from the RCAT the next time they are IPLed.
    
    
    
    BUILD COMMANDS AND INSTRUCTIONS: YES
    #maketpf commands for linux
    maketpf -f CTKC ctkc.o
    maketpf CTKC 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/PJ40768.htm
    

Temporary fix

Comments

APAR Information

  • APAR number

    PJ40768

  • Reported component name

    Z/TPF

  • Reported component ID

    5748T1501

  • Reported release

    110

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-11-28

  • Closed date

    2013-01-15

  • Last modified date

    2013-01-15

  • 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 #:

PJ40768

Modified date:

2013-01-15

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