PM60850: CSPK CAUSING APPLICATION TO LOSE CURRENT CHANNEL

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• When transaction CSPK was run, CICS incorrectly assigned the
  channel to task CSPK during initialisation. The channel was
  then deleted when CSPK finishes. So when EXEC CICS ASSIGN
  CHANNEL was issued, the channel was not found.
  

Local fix

• Using the local screen print function of terminal emulator.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: Current channel is missing after CSPK   *
  *                      is run.                                 *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  An EXEC CICS RETURN TRANSID CHANNEL is issued by a user task.
  Before the next user task starts by a terminal input,
  transaction CSPK is run. CICS incorrectly assigns the channel to
  CSPK. When CSPK finishes the channel is deleted by CICS. The
  next user task runs and issues an EXEC CICS ASSIGN CHANNEL. No
  channel is returned. Exception CHANNEL_NOT_FOUND is issued by
  EXEC CICS ASSIGN CHANNEL. This happens in both single CICS
  scenario and TOR and AOR scenario.
  

Problem conclusion

• DFHTFXM and DFHXTP are changed so that CICS will ignore the
  current channel when the task is CSPK. This prevents CICS
  incorrectly binding the current channel to CSPK. Fix added by
  PM47098 in CICS release V4.1 and V4.2 is also included in this
  APAR.
  

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:

  PM61669 UK78409 UK78410

Modules/Macros

•    DESTFXM  DFHTFXM  DFHXTP
  

Fix information

• Fixed component name

  CICSTS V3 Z/OS

• Fixed component ID

  5655M1500

Applicable component levels

• R400 PSY UK78409

     UP12/05/12 P F205

• R500 PSY UK78410

     UP12/05/12 P F205

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.