PH19981: ABENDS0C4 IN IPI4PROC AT X'246E'

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• During EOD processing IMS PA flushes any incomplete transactions
  for reporting. When a program-switch sequence is found the list
  of transactions is traversed staring from the parent, or
  top-level transaction, to the end of the chain. In this instance
  a pointer to a transaction was in the list, however the
  transaction had been previously reported and the associated
  storage freed, without the pointer being removed from the list,
  resulting in an ABEND0C4 attempting to address the transaction.
                                                             S0C4
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of IMS Performance Analyzer V4.4       *
  ****************************************************************
  * PROBLEM DESCRIPTION: Abend S0C4 IPI4PROC+1346E               *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  During EOD processing IMS PA flushes any incomplete transactions
  for reporting. When a program-switch sequence is found the list
  of transactions is traversed staring from the parent, or
  top-level transaction, to the end of the chain.
  In this instance a pointer to a transaction was in the list,
  however the transaction had been previously reported and the
  associated storage freed, without the pointer being removed from
  the list, resulting in an abend S0C4 attempting to address the
  transaction.
  

Problem conclusion

• This issue is associated with MODE=MULT transactions. The
  expected result in a program-switch list is that all
  transactions in the chain will have the same Originating Unit
  of Work ID (ORGUOWID) and the list would be traversed
  starting from the top-level transaction found with that
  ORGUOWID.
  
  With MODE=MULT transactions, this may not be the case, so when
  processing the IMS x'37' message transfer record starting at
  the top-level transaction in the chain, the current
  program-switch transaction may not be found and consequently
  the link to its parent transaction is not reset.
  This change will identify a transaction as MODE=MULT and for
  program-switch transactions, during IMS x'37' record processing,
  if the parent transaction is not found by traversing the
  ORGUOWID chain the parent transaction must be identified using
  the Unit of Recovery token (RECTOKEN). This will result in the
  transaction being correctly removed from the program-switch
  chain for the parent.
  

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:

  UI67063

Modules/Macros

•    IPIIPROC IPISAPAR
  

Fix information

• Fixed component name

  IMS PERF ANALYZ

• Fixed component ID

  5655E1500

Applicable component levels

• R440 PSY UI67063

     UP19/12/20 P F912

Fix is available

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