PK06888: ABEND 0C4 FOLLOWED BY ABEND C03 WHEN CLOSING VSAM FILES

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• On an IMMEDIATE shutdown of CICS, an 0C4 abend occurs followed
  by an abend C03.  The 0C4 occurs in moduel IDA0200B at x'D26'
  trying to access the AMB via Reg5.  This area has been freed
  which results in a C03 abend.  This seems to have to do with
  when the FO TCB is detached by DFHKETCB when it takes longer
  than 10 seconds.  In this case, closing the vsam files takes
  longer than 15 seconds.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users                               *
  ****************************************************************
  * PROBLEM DESCRIPTION: ABEND0C4 and ABENDC03 during an         *
  *                      Immediate Shutdown.                     *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  During an Immediate Shutdown the FO (File Owning) TCB can be
  detached before all VSAM data sets have been closed.
  This can cause an ABEND0C4 in module IDA0200B at offset X'D26'
  followed by an ABENDC03.
  Also message IEC161I with codes 058(018)-061 may appear for VSAM
  data sets at CICS Startup if the FO TCB was abnormally detached
  at shutdown, and an automatic VERIFY will be done on these data
  sets.
  
  Additional Keywords: IEC999I MSGIEC999I IFG0TC0A IFG0TC0B
  MSGIEC161I SC03 S0C4 0C4 C03 OA09116 MSGDFHKE1798
  

Problem conclusion

• DFHKETCB has been altered to give the FO TCB 60 seconds in which
  to terminate at immediate shutdown, and KCB_CANT_TERMINATE_FO
  will be set if the 60 seconds is exceeded. DFHKESIP will issue a
  new message DFHKE1798 if this flag is set.
  
  The CICS Transaction Server for z/OS CICS Messages and Codes
  Version 3 Release 1 manual, GC34-6442-00, will be updated to add
  the following new message for DFHKE1798 :-
  
  DFHKE1798  APPLID  FO TCB FORCED TO TERMINATE.
  
  EXPLANATION:  During an Immediate Shutdown the File Owning
  TCB was detached before VSAM was able to close all data sets
  normally.
  
  It is possible that the detaching of this TCB will cause
  abends during shutdown. At CICS restart VSAM may need to
  perform a VERIFY for any data set which was open for update
  when the Immediate Shutdown was performed, and this can cause
  a long delay.
  
  During initialization, CICS may not have access to the
  user's  applid  coded in the SIT.  If CICS produces this
  message in these circumstances, it uses the default
   applid  value DBDCCICS.
  
  SYSTEM ACTION:  The immediate shutdown of CICS continues.
  
  USER RESPONSE:  None. If this message occurs frequently,
  you may wish to issue a CEMT SET FILE ALL CLOSED before
  Immediate Shutdown.
  
  NOTE:  This message cannot be changed with the message
  editing utility.
  
  DESTINATION:  Console
  
  MODULE:  DFHKESIP
  

Temporary fix

• FIX AVAILABLE BY PTF ONLY
  

Comments

APAR Information

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

  PK03021

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

  UK04779

Modules/Macros

•    DFHKESIP DFHKETCB DFHMEKEC DFHMEKEE DFHMEKEK
  DFH06888 MFHMEKEE
  

Fix information

• Fixed component name

  CICSTS 3.1 Z/OS

• Fixed component ID

  5655M1500

Applicable component levels

• R400 PSY UK04779

     UP05/06/29 P F506

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.