PM70440: CAPTURE AND FORMAT THE BEAR IN DFHPD410 KE OUTPUT

Obtain the fix for this APAR.

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 is sysrouted FROM one or more of the following:

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

  UK95720

Modules/Macros

•    DFHKEDUF DFHKESTX
  

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.