PK83698: NEITHER SNAP LOG NOR SVC DUMP WAS TAKEN AT PSEUDO ABEND U0853

APAR status

• Closed as program error.

Error description

• After migration to IMS V9, neither SNAP dump on log nor SVC
  dump was taken when pseudo ABEND occurred during full function
  DL/I call. In IMS V7, SNAP dumps on log are taken when the same
  ABEND occurs. but But in IMS V9, we could have no diagnostic
  data at all.
  IMS V9 changed the way it takes diagnostic information when
  pseudo ABENDs occur and now it takes SVC dump instead of SNAP
  on log. However, SVC dump was suppressed with MSGDFS3932I RC24
  because FMTO=X option prevents SVCDUMP of non-terminating ABEND.
   DFS3932I IMS DUMP REQUEST COMPLETED - RETURN CODE = 024
  DFSERA20 should not request SVCDUMP but should request snap
  to log, if FMTO=X, R, F or Z.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All IMS V9 Full Function Database users.     *
  ****************************************************************
  * PROBLEM DESCRIPTION: After pseudo abend U0853 neither SNAP   *
  *                      dump nor SVC dump was taken with IMS    *
  *                      control region EXEC parameter FMTO=X.   *
  ****************************************************************
  * RECOMMENDATION: INSTALL CORRECTIVE SERVICE FOR APAR/PTF      *
  ****************************************************************
  When module DFSERA20 is called to take an SVC dump for a pseudo
  abend, it issues DFSDUMP macro to invoke module DFSFDMP0, which
  checks the FMTO value from the IMS control region EXEC
  parameter.  If this value is X, R or F it suppresses the SVC
  dump and issues message DFS3932I IMS DUMP REQUEST COMPLETED -
  RETURN CODE = 024.  so there's no diagnostic information for the
  users to resolve the pseudo abend.  When the SVC dump is not
  taken, it should take SNAP dump to provide diagnostic
  information.
  
  Additional Keywords:  MSGDFS3932I ABENDU0853
  

Problem conclusion

• GEN:
  KEYWORDS:
  
  *** END IMS KEYWORDS ***
  In module DFSERA20 after label ERA20PS4, code has been added to
  set flag SNAPDUMP and issue IMAGE CALL,PROC=ANALYZE to perform
  request analysis when DFSDUMP macro returns a return code 24.
  In the ANALYZE routine, after label ESNAP001, code has been
  added to check and reset the flag SNAPDUMP and take snap dump.
  

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:

  PK84687 UK47326

Modules/Macros

• DFSERA20
  

Fix information

• Fixed component name

  IMS V9

• Fixed component ID

  5655J3800

Applicable component levels

• R900 PSY UK47326

     UP09/06/18 P F906