PH12746: Abend s878 or s0c4 om dynamic allocation in IGZIDYN

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• When COBOL run-time is attempting to allocate a sidefile, the
  following events occur:
  1) IGZISFU issues an ATTACH svc, which completes successfully
  (svc and svcr in system trace)
  2) IGZISFU then issues a EXEC CICS WAIT EXTERNAL while waiting
  for the subtask to complete
  3) PURGE is issued, and task is cancelled
  4) DYNALLOC in the subtask is issued. using parm list passed
  from 'main' task (IGZISFU)
  5) s878 or s0c4 can occur (intermittently) since the storage
  from the main task has been freed (and possibly reused) as a
  result of the PURGE
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Clients running Enterprise COBOL V3 or V4    *
  *                 programs on CICS and the programs are        *
  *                 compiled with the TEST(,SEPARATE) option.    *
  ****************************************************************
  * PROBLEM DESCRIPTION: Abend s878 or s0c4 can occur            *
  *                      (intermittently) in the MVS dynamic     *
  *                      allocation (SVC 99) code.               *
  ****************************************************************
  * RECOMMENDATION: Apply the provided PTF.                      *
  ****************************************************************
  Abend s878 or s0c4 can occur (intermittently) in MVS dynamic
  allocation (SVC 99) because the storage passed to MVS dynamic
  allocation may have been freed or reused before the
  MVS dynamic allocation had completed.
  
  FIXCAT keyword: COB0501T/K COB0502T/K COB0601T/K COB0602T/K
  

Problem conclusion

• The COBOL runtime was changed to allocate the area passed MVS
  dynamic allocation in CICS SHARED storage so that it is not
  freed or reused before MVS dynamic allocation SVC has
  completed.
  

Temporary fix

Comments

APAR Information

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

  PH02305

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

  UI63355

Modules/Macros

• IGZ9SFU  IGZCHCM  IGZCLDL  IGZCXPS  IGZEDCM  IGZIC41  IGZISFC
  IGZISFM  ILBOSRV
  

Fix information

• Fixed component name

  LE COBOL LIB

• Fixed component ID

  568819802

Applicable component levels

• R7B0 PSY UI63355

     UP19/06/18 P F906

Fix is available

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