Hi,

Looking ahead to falling back from Daylight Savings Time November 2, 2008 this 
APAR OA18496 might be good to have.

        Best Regards, 

                Sam Knutson, GEICO 
                Performance and Availability Management 
                mailto:[EMAIL PROTECTED] 
                (office)  301.986.3574 

"Think big, act bold, start simple, grow fast..."

APAR Identifier ...... OA18496      Last Changed ........ 08/05/02
  SYSTEM ABEND15F REASON 401 RC401 RC 401 ONLY Z/OS 1.8 ONLY
 
 
  Symptom ...... AB ABEND15F          Status ........... CLOSED  PER
  Severity ................... 2      Date Closed ......... 08/04/17
  Component .......... 5752SC1CR      Duplicate of ........
  Reported Release ......... 730      Fixed Release ............ 999
  Component Name 5752 REAL STOR       Special Notice       ATTENTION
  Current Target Date ..08/05/09      Flags
  SCP ...................
  Platform ............               PERVASIVE
 
 
  Status Detail: SHIPMENT - Packaged solution is available for
                            shipment.
 
  PE PTF List:
 
  PTF List:
  Release 730   : UA40526 available 08/05/01 (F804 )
  Release 740   : UA40527 available 08/05/01 (F804 )
  Release 750   : PTF not available yet
 
 
  Parent APAR:
  Child APAR list:
 
 
  ERROR DESCRIPTION:
  During NIP processing the real storage manager builds a table
  for global LRU steal processing during processing in ieavnpe8.
  The code uses store clock to establish time stamps for the
  entries in this table but the clockxx parameter does not
  get processed until ieavnp21. Therefore the TOD clock can be
  changed after rsm has already stored the clock, making the
  times rsm stored invalid during later SRM processing.
 
 
  LOCAL FIX:
  none
 
 
  PROBLEM SUMMARY:
  ****************************************************************
  * USERS AFFECTED: Users at HBB7730 and above.                  *
  ****************************************************************
  * PROBLEM DESCRIPTION: If the TOD clock setting is moved       *
  *                      backwards in time (via CLOCKxx in       *
  *                      parmlib, reply to IEA101A, etc),        *
  *                      calculations of the time spent on a     *
  *                      Global LRU segment scan may produce     *
  *                      a negative result, ultimately           *
  *                      resulting in ABEND15F, reason code      *
  *                      401.                                    *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  SRM's scan of the Global LRU segments to calculate the UIC of
  each segment determines that the GLRUSegmentPreviousStartTime
  is greater than the GLRUSegmentStartTime, leading to System
  ABEND15F, reason code 401.
 
 
  PROBLEM CONCLUSION:
  Time values stored in the LRU Segment block must be
  re-initialized after the TOD clock value for the IPL processor
  is established in IEAVNP21.
 
 
  TEMPORARY FIX:
 
 
  COMMENTS:
 
 
  MODULES/MACROS:   IAXSEGMT IEAVNP21
 
 
  SRLS:      NONE
 
 
  RTN CODES:
 
 
  CIRCUMVENTION:
 
 
  MESSAGE TO SUBMITTER:


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