PK98344: ABEND0C4 IPIIPROC WHEN FLUSHING QUEUE ELEMENTS FOR HIGH WATER MARK (HWM) PROCESSING TO ADD PROGRAM-SWITCH RESPONSES

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• ABENDS0C4 in IPI4PROC when flushing queue elements for high
  water mark (HWM) processing to add program-switch responses.
  Originating Transactions can be flushed at high-water mark (HWS)
  processing when trying to add program-switch response records
  and link them to the corresponding Originating Transactions.
  .
  ABEND occurs at x'15b2' into MOD IPIIPROC and LMOD is IPI4PROC .
  
  Another occurrence of this issue was reported at offset x'046e'
  with R5 being invalid (D3F5F1F0), therefore any abend0c4 in
  this routine we recommend installing the PTF for this issue, as
  abend locations may vary.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of IMS Performance Analyzer V4.1       *
  ****************************************************************
  * PROBLEM DESCRIPTION: Abend0C4 in IPIIPROC module in IPI4PROC *
  *                      load module when flushing queue         *
  *                      elements for high water mark (HWM)      *
  *                      processing to add  program-switch       *
  *                      responses.                              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Originating Transactions can be flushed at high-water mark
  (HWS) processing when trying to add program-switch response
  records and link them to the corresponding Originating
  Transactions.
  

Problem conclusion

• Change code to ensure that the current transaction pointer
  is set to the top-level transaction in the transit-set when
  adding a program-switch response, before checking eligibility
  of the current transaction for flushing, so that the
  program-switch response has a valid anchor.
  

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:

  UK51063

Modules/Macros

• IPIIPROC IPISLOGT IPISTS00
  

Fix information

• Fixed component name

  IMS PERF ANALYZ

• Fixed component ID

  5655E1500

Applicable component levels

• R410 PSY UK51063

     UP09/10/20 P F910

Fix is available

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