PH65898: ABEND0C4s CAN OCCUR DUE TO OVERLAY OF CICS CONTROL BLOCKS IF THE LENGTH OF A WSBIND FILE IS SMALLER THAN IT SHOULD BE

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• You are running CICS Transaction Server and using WEBSERVICES.
  
  You may experience any of the following errors due to CICS
  control blocks getting overlaid. Here are some of the errors
  seen:
  
  DFHKE0201 applid ABOUT TO TAKE SDUMP. DUMPCODE: KERNDUMP,
            DUMPID: 0/0000. (MODULE DFHKESTX)
  DFHPI0001 applid An abend (code 0C4/AKEA) has occurred at
            offset X'000033A2' in module DFHPIPL.
  DFHDS0001 applid An abend (code 0C4/AKEA) has occurred at
            offset X'0CCA' in module DFHDSTCB.
  
  DFHPG0001 applid An abend (code 0C4/AKEA) has occurred at
            offset X'0F7C' in module DFHPGCH
  DFHST0103 applid  An SMF error has occurred with
            return code X'28'.
  
  The overlay is caused by a WSBIND file that has a length smaller
  than the Web Request Block structure (WRB).
  
  The overlay can affect any control blocks following immediately
  after the WRB i.e. TASENTRY and TCTTE.
  
  
  Additional symptoms: KIXREVDAM
  CPIR LOOP DFHPIWR Provider Requestor WEB Service
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All                                          *
  ****************************************************************
  * PROBLEM DESCRIPTION: Abend 0C4 with DFHPI0001, and possible  *
  *                      subsequent DFHnn0001 0C4 abends.        *
  ****************************************************************
  A WEBSERVICE is installed into CICS, or a PIPELINE scan is
  performed which installs a WEBSERVICE automatically. The wsbind
  file read from the file system is smaller than the minimum
  expected size. This causes CICS to GETMAIN an area of storage
  shorter than the size of the CICS web request block (WRB)
  control block. As a result when fields at the end of the WRB
  are modified 0C4s may occur.
  

Problem conclusion

• DFHPIWR has been modified to ensure the size of the area
  GETMAINed for the WRB is at least the minimum possible size.
  Additionally, if a wsbind file is found to be smaller than the
  minimum expected size then new message DFHPI9824 will be issued.
  
  The IBM Documentation for CICS will be updated to reflect the
  new message of DFHPI9824 in the next refresh.
  

Temporary fix

Comments

APAR Information

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

  PH65176

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

  UO03631 UO03632

Modules/Macros

• DFHMEPIC DFHMEPIE DFHMEPIK DFHPIWR
  

Fix information

• Fixed component name

  CICS TS Z/OS V6

• Fixed component ID

  5655YA100

Applicable component levels

• R400 PSY UO03632

     UP25/06/14 P F506

• R500 PSY UO03631

     UP25/06/14 P F506

Fix is available

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