PM02134: DFHAP0001 S0C4/AKEA ABEND AT OFFSET X'0EA8' IN DFHZISP. DFHAP0001 ASRA ABEND OCCURRED AT OFFSET X'048A'IN DFHAPTC.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Recursive ASRA abend and brings CICS down with DFHPC0409
  DFHAP0001 SOC4/AKEA abend in at offset X'00000EA8' in module
  DFHZISP.
  DFHAP0001 ASRA abend occurred at offset X'048A' in module
  DFHAPTC.
  This produced an APCT01 system dump.
  
  To prevent the ASRA, module DFHAPTC will be fixed to ensure that
  TCATPPFL is clean before DFHZISP is called to allocate a
  session.
  Addtional symptoms: U1800 ABENDU1800 CPSM
  tranid COWC in TCA field
  KIXREVSCB
  

Local fix

• Apply APAR
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: An abend 0C4/AKEA has occurred in       *
  *                      DFHZISP, followed by several ASRA       *
  *                      abends in DFHAPTC.  These were during   *
  *                      a dynamic routing for a Web service     *
  *                      request.  CICS terminates with message  *
  *                      DFHPC0409.                              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  CICS receives a Web service request.  The CICS region has a
  URIMAP with a usage of PIPELINE.  The header program specified
  in the pipeline configuration file issues an
  EXEC CICS PUT_CONTAINER(DFHWS-TRANID) command. As a result
  request streams are invoked to route the request to a remote
  region.
  
  To create a request stream, DFHRZRS firstly determines a router.
  The customer uses CPSM for dynamic routing.  As the new transid
  defines as DYNAMIC(YES), CICS calls CPSM.  The CPSM routing
  exit EYU9XLOP issues an EXEC CICS START TRANSID(COWC) command
  to start garbage collection.  This places the transid COWC in
  TCAICTI, which is part of the overlay area of the TCA.
  
  DFHRZRS secondly opens a transport for the request stream.  It
  uses the function DFHAPTC OPEN.  DFHAPTC issues a DFHTC
  TYPE=ALLOCATE specifying PROFILE=YES, however it does not set
  up the required terminal profile address in TCATPPFL.  TCATPPFL
  is at the same offset as TCAICTI in the TCA, which still
  contains COWC.
  DFHZISP processes the DFHTC TYPE=ALLOCATE and program checks
  when it attempts to use the contents of TCATPPFL as the
  profile address.
  DFHAPTC intercepts the abend and returns a disaster response to
  DFHRZRS.
  
  DFHRZRS retries to route the request.  However TCATPPFL still
  contains COWC, so DFHAPTC abends ASRA again.  When this process
  repeats a third time, DFHABAB detects that the abend-in-progress
  flag TCAABREC is still on and concludes that there is a
  recursive abend ASRA.  It brings down CICS with DFHPC0409.
  
  Additional keywords: msgDFHPC0409 PC0409 msgDFHAP0001 AP0001
  

Problem conclusion

• DFHAPTC has been changed to use the DFHTC ALLOCATE macro with
  an option of PROFILE=NO, which clears TCATPPFL.
  

Temporary fix

• *********
              * HIPER *
              *********
  FIX AVAILABLE BY PTF ONLY
  

Comments

APAR Information

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

  PK98333

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

  UK53280

Modules/Macros

• DESAPTC  DFHAPTC
  

Fix information

• Fixed component name

  CICS TS Z/OS V4

• Fixed component ID

  5655S9700

Applicable component levels

• R600 PSY UK53280

     UP10/01/07 P F001

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.