PH56680: AFTER APPLYING PTF UI91557, ABENDS096 OCCURRED

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• After applying PTF UI91557, ABENDS906 occurs with following
  message:
  CSV002I REQUESTS FOR MODULE DFSCNVT0 EXCEED MAXIMUM USE COUNT
  CSV028I ABEND906-08  JOBNAME=SRIO1611  STEPNAME=BMPSTEP
  It appears DFSCNVT0 is loaded twice for each checkpoint instead
  of loading DFSCNVT0 and reusing DFSCNVT0 loaded address.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of IBM IMS Program Restart         *
  *                 Facility for z/OS Version 2 Release 2        *
  *                 (FMID=H23D220).                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: After applying UI91557, IMS BMP fails   *
  *                      with S906 after issueing 16,384 or      *
  *                      more checkpoints.                       *
  ****************************************************************
  * RECOMMENDATION: Apply the maintenance for this APAR.         *
  ****************************************************************
  After applying UI91557, PRF saves a time stanp using local time
  in the checkpoint tracing datasets (CTDSs). To calculate the
  local time, PRF requests to load DFSCNVT0 module. Originally,
  the loading process should have been bypassed if DFSCNVT0 was
  already loaded, but there was a flaw in the bypass process, and
  the loading process was performed at each checkpoint, which
  caused S906 abend after isueing 16,384 or 32,767 checkpoints.
  

Problem conclusion

• Applying this APAR prevents the Abends.
  

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:

  UI93906

Modules/Macros

• IRTFXSR0 IRTHKIB  IRTINCL  IRTIXT14 IRTIXT15 IRTJOB   IRTPRE00
  IRTPRE10 IRTXRI14 IRTXRI15 IRTXSC14 IRTXSC15 IRTZ1000 IRTZJOBS
  

Fix information

• Fixed component name

  IMS PGM RESTART

• Fixed component ID

  5655E1400

Applicable component levels

• R220 PSY UI93906

     UP23/10/20 P F310 {

Fix is available

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