PI10485: ABEND U1800 IN DFHKELCA AT OFFSET X'38A' WHICH CAUSE THE CICS 5.1 REGION TO CRASH.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Overlay of Kernel SEGENTRY segments yield unpredictable errors.
  One symptom is:
  KERNDUMP caused by abend0C4 on STG instruction at +CC0 into
  DFHKEDOM at base level.  R12 is supposed to address a Kernel
  segment.  Instead, R12 contains 27A72DAE which points to
  +EAE into the UK96353 level of DFHUEH.  At that level, +EAE
  into DFHUEH points just after a 0DEF BASR instruction.
  ADDITIONAL KEYWORDS:DFHKEDOM KCB offset 330 bad address
   field KCB_FIRST_FREE. Segment Segentry overlaid
   HANDLE_SAVEAREA STMG 64 bit registers
   KIXREVRHC
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS Users                               *
  ****************************************************************
  * PROBLEM DESCRIPTION: Calling of a GLUE program causes        *
  *                      storage overwrite leading to unexpected *
  *                      behaviour.                              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  During the execution of a task an enabled GLUE is linked to.
  While setting up the GLUE environment the registers are saved
  into a save area that is too small.  This causes storage to be
  overwritten, dependent on where the overwrite occurs this can
  cause unpredictable results.
  

Problem conclusion

• DFHUEH has been changed to increase the size of the register
  save area.
  

Temporary fix

• *********
              * HIPER *
              *********
  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:

  UI15119

Modules/Macros

• DFHUEH
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R800 PSY UI15119

     UP14/02/20 P F402

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.