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PM70440: CAPTURE AND FORMAT THE BEAR IN DFHPD410 KE OUTPUT

A fix is available

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APAR status

  • Closed as program error.

Error description

  • From z/VSE 5.1 the SDWA provides the hardware BEAR that makes
    it easier to trace a failing branch by providing the address
    of the instruction that caused the program check.
    The new SDWA structure is SDWARC4 and it is addressed by
    SDWAPTRS.SDWAXEME. SDWAXEME is not available before 5.1 and
    must not be accessed.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All CICS users.                              *
    ****************************************************************
    * PROBLEM DESCRIPTION: Serviceability enhancement to CICS.     *
    *                      Save the bottom word of SDWABEA into    *
    *                      the TAS to aid with wild branch         *
    *                      problem determination.                  *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    z/VSE Version 5 provides the SDWA field SDWABEA that contains
    the start address of the last executed branch instruction, which
    is also known as the BEAR. CICS does not format this information
    as part of DFHPD410 KE=1 formatting for system dumps. This is a
    serviceability requirement for diagnosis of wild branch
    problems.
    
    KEYWORDS: KERRD TAS sysdump sdump sdumps sysdumps br
              PK47015 PK47715
    

Problem conclusion

  • CICS Kernel domain has been changed to include "Branch Event
    Address: xxxxxxxx" as part of the formatting for its KE=1
    data.
    
    The CICS TS for VSE/ESA CICS Data Areas manual LY33-6086-0 has
    been changed to describe the changes to the KERRD control
    block on pages 170 and 171.
    
    Offset Type      Len   Name (Dim)    Description
     Hex
    
    (4D)   CHARACTER   3   CICS_BEA_1    First part of the BEAR
    
    (1A5)  CHARACTER   1   KERNEL_BEA_2  Last part of the BEAR
    (1A6)  CHARACTER   2   *             Reserved
    

Temporary fix

  • FIX AVAILABLE BY PTF ONLY
    

Comments

APAR Information

  • APAR number

    PM70440

  • Reported component name

    CICSTS FOR VSE

  • Reported component ID

    564805400

  • Reported release

    B0P

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-08-07

  • Closed date

    2013-07-09

  • Last modified date

    2014-03-27

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

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

    UK95720

Modules/Macros

  •    DFHKEDUF DFHKESTX
    

Publications Referenced
LY33608600    

Fix information

  • Fixed component name

    CICSTS FOR VSE

  • Fixed component ID

    564805400

Applicable component levels

  • RB0P PSY UK95720

       UP13/07/18 P E520

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:
27 March 2014