PH04699: IMS TOOLS GENERIC LOGGER EXIT ERRONEOUSLY REUSES STATIC WORK AREA FOR MULTIPLE LOGGER EXITS THAT CAUSES UNPREDICTABLE RESULTS

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• IMS Tools Generic Logger Exit erroneously reuses static work
  area for multiple Logger exits and that causes unpredictable
  results in the exit process.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of IBM IMS Tools Base for z/OS     *
  *                 Version 1 Release 6 (FMID: HAHN160) who use  *
  *                 Generic Logger exit.                         *
  ****************************************************************
  * PROBLEM DESCRIPTION: Static work area is not retained across *
  *                      calls to Logger exits                   *
  ****************************************************************
  * RECOMMENDATION: Apply the maintenance for this APAR.         *
  ****************************************************************
  An error, such as system or user ABEND, or unpredictable output
  occurs in an IMS Logger user exit (DFSFLGX0) when it is used
  with IMS Tools Generic Logger Exits. This occurs when the
  following conditions are all met:
  - Two or more Logger user exits are defined to Generic Logger
    Exits.
  - The exits update and refer their own exit static work area,
    which is provided by Generic logger exit via SXPLSWK
    parameter, across the invocation.
  Static work area for each user exit needs to be retained across
  calls. However, Generic Logger exit obtains a single work area
  and reuse it for all Logger exit calls. That causes malfunction
  of an exit when it refers contents in the area updated during
  its previous call.
  A common symptom is ABENDSA03 when IMS control region shuts
  down.
  

Problem conclusion

• IBM Tools Base Generic Logger exit has been changed to provide
  each Logger exit with unique static work area.
  

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:

  UI59843

Modules/Macros

• GLXIESTD GLXIESTE GLXIESTF GLXIINTD GLXIINTE GLXIINTF GLXILGX0
  GLXILGXD GLXILGXE GLXILGXF GLXILOAD GLXILODD GLXILODE GLXILODF
  GLXILRE0 GLXUSXIF
  

Fix information

• Fixed component name

  TOOLS BASE

• Fixed component ID

  5655V9300

Applicable component levels

• R160 PSY UI59843

     UP18/11/26 P F811

Fix is available

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