PK18931: CSATODP (OR TIMEOFDAY AS RETURNED FROM A DFHSAIQX INQUIRE_SYSTEM CALL) IS BEHIND.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• CSATODP is a little bit behind the time.  For instance, at
  say 12:12:03.1, CSATODP might be 12:12:01.8.
     This is also true for the TIMEOFDAY returned on a DFHSAIQX
  INQUIRE_SYSTEM XPI call.  You can see this on the following
  trace entry:
  SAIQ EXIT - FUNCTION(INQUIRE_SYSTEM) RESPONSE(OK)
                TIMEOFDAY(1843271F)
  TASK-TCP   KE_NUM-001D TCB-QR   /008CB848 RET-93A000DA
                TIME-18:43:28.2
  -----------------------
     The problem happens in DFHDSCSA where 3 different CSA clock
  fields are updated each time a task is dispatched.  CSATODTU is
  properly updated with the new current time.  But then CSACTODB
  is updated with the old CSATODTU.  And then CSATODP is updated
  with the old old CSACTODB.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All.                                         *
  ****************************************************************
  * PROBLEM DESCRIPTION: TIMEOFDAY value returned on a DFHSAIQX  *
  *                      XPI call may be inaccurate.             *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  In the reported problem, a user exit driven at XZCOUT1 performed
  an DFHSAIQX INQUIRE_SYSTEM XPI call and requested the TIMEOFDAY
  parameter to be returned. This parameter was traced and it was
  noticed that its value was earlier than the system timestamp.
  

Problem conclusion

•  DFHDSCSA has been modified and will now compute the relevant
   CSA fields correctly.
  

Temporary fix

• FIX AVAILABLE BY PTF ONLY
  

Comments

APAR Information

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

  PK18514

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

  UK11714

Modules/Macros

•    DFHDSCSA
  

Fix information

• Fixed component name

  CICSTS 3.1 Z/OS

• Fixed component ID

  5655M1500

Applicable component levels

• R400 PSY UK11714

     UP06/02/18 P F602

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.