PK51179: CICS ABENDS WITH CODE A78 IF IT IS CANCELLED AFTER BEING INITIALIZED FOR SSL

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• If a CICS system is initialized for SSL by specifying the
  KEYRING system initialization parameter, and is then terminated
  by means of a console CANCEL command instead of a CEMT PERFORM
  SHUT command, a system abend A78-10 occurs during the
  cancellation process.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users                               *
  ****************************************************************
  * PROBLEM DESCRIPTION: If CICS is initialized for Secure       *
  *                      Sockets Layer by specifying the         *
  *                      KEYRING system initialization           *
  *                      parameter, and is then cancelled        *
  *                      using the MVS operator CANCEL           *
  *                      command, a subsequent abend             *
  *                      SA78-10 occurs.                         *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The A78-10 is due to a double freemain of the savearea that is
  passed to DFHKETCB when it is used to initialize an S8 pthread
  TCB. When CICS is cancelled, the S8 TCBs are detached, causing
  them to abend 33E. Special processing in ESTAE exit DFHKESTX
  to handle this abend code returns directly to CICS instead of
  attempting a retry. DFHKETCB returns control to its caller and
  frees its savearea. Pthread termination completes, causing
  another detach of the same TCB. Recovery is repeated for a 33E
  abend and the same action happens again, but the second attempt
  to freemain the savearea results in the A78-10 abend.
  Additional Keywords: abendA78 abendSA78 SA78 IEA705I
                       msgIEA705I
  

Problem conclusion

• The TERMINATE_KTCB function of DFHKEMT is changed to detect an
  attempt to terminate a pthread from within a recovery routine.
  If this occurs, the KTCB is terminated immediately, instead of
  returning to pthread termination.
  

Temporary fix

• FIX AVAILABLE BY PTF ONLY
  

Comments

APAR Information

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

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

  UK29007

Modules/Macros

•    DFHKEMT  DFHKETCB
  

Fix information

• Fixed component name

  CICSTS V3 Z/OS

• Fixed component ID

  5655M1500

Applicable component levels

• R500 PSY UK29007

     UP07/09/14 P F709

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.