PI77657: DFHLD0004 LOOP IN DFHLDLD3 AFTER CEMT SET PROG(*) PHA USING LPA

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Loop occurs after  CEMT SET PROG(*) PHA  command. The CEMT task
  abends with message:
  .
  DFHLD0004 A possible loop has been detected at offset X'FFFF'
   in module DFHLDLD3.
  .
  If ICVR is turned off for the task, CEMT never finishes. CICS
  trace shows that the CEMT task processes a number of programs,
  then goes into a loop. The loop is in DFHLDLD3, proc
  CPE_EXPLODE, and MVS system trace shows that the range of the
  loop is DFHLDLD3 +x874 to x88E (base level).
  .
  The problem is that the APE +x28 (field APE_OLDER_APE) for a
  program points to itself. Problem occurs when modules are used
  out of the LPA.
  .
  Additional symptoms/search keywords:
  KIXREVxxx REFRESH_PROGRAM  DFHAPATT  APE_OLDER
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS Users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: Loop in DFHLDLD3 after a CEMT SET       *
  *                      PROGRAM PHASEIN and program is loaded   *
  *                      from the LPA.                           *
  ****************************************************************
  * RECOMMENDATION: .                                            *
  ****************************************************************
  It is possible to suffer an abendAEXZ following a CEMT SET
  PROGRAM PHASEIN (or NEWCOPY) if the program being the subject of
  the PHASEIN has been loaded from the LPA.
  The problem happens because code in DFHLDLD3 is browsing through
  the Active Program Elements ( APE ) but the chaining fields  in
  the APE have been incorrectly updated to point to itself because
  of changes to the optimization level of the compiler.
  
  Additional keywords: APE_OLDER_APE APE_YOUNGER_APE
  

Problem conclusion

• DFHLDLD1 has been changed to revert the level of optimisation.
  

Temporary fix

Comments

APAR Information

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

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

  UI47171 PI83337

Modules/Macros

• DFHLDLD1
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R000 PSY UI47171

     UP17/05/15 P F705

Fix is available

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