Hello.
        We have an AlphaServer 1000 4/266 (128Mb RAM, ~15Gb HDs )  with
running DU3.2D-1.And system periodically been crashing with full memory
 and kernel dumps. In system event log (uerf) we see messages:
********************************* ENTRY    89.
----- EVENT INFORMATION -----
EVENT CLASS                             ERROR EVENT 
OS EVENT TYPE                  100.     CPU EXCEPTION 
SEQUENCE NUMBER                  1.
OPERATING SYSTEM                        DEC OSF/1 
OCCURRED/LOGGED ON                      Mon Jun 17 13:57:52 1996
OCCURRED ON SYSTEM                      dbserv 
SYSTEM ID                 x00060011
SYSTYPE                   x00000000
----- UNIT INFORMATION -----
UNIT CLASS CPU
********************************* ENTRY    90.
----- EVENT INFORMATION -----
EVENT CLASS                             ERROR EVENT 
OS EVENT TYPE                  100.     CPU EXCEPTION 
SEQUENCE NUMBER                  2.
OPERATING SYSTEM                        DEC OSF/1 
OCCURRED/LOGGED ON                      Fri Jun 21 14:29:04 1996
OCCURRED ON SYSTEM                      dbserv 
SYSTEM ID                 x00060011
SYSTYPE                   x00000000
----- UNIT INFORMATION -----
UNIT CLASS                              CPU 
----- EVENT INFORMATION -----
EVENT CLASS                             ERROR EVENT 
OS EVENT TYPE                  302.     PANIC 
SEQUENCE NUMBER                  3.
OPERATING SYSTEM                        DEC OSF/1 
OCCURRED/LOGGED ON                      Fri Jun 21 14:29:04 1996
OCCURRED ON SYSTEM                      dbserv 
SYSTEM ID                 x00060011
SYSTYPE                   x00000000
MESSAGE                                 panic (cpu 0): Machine check - 
                                         _Hardware error 
=====================================================================
In crash data collection file /var/adm/crash/crash-data.X and
/var/adm/messages file we recently found messages:
Jun 21 22:45:56 dbserv vmunix: WARNING: too many Processor corrected
errors detected on cpu 0. Reporting suspended.
Jun 21 22:45:56 dbserv vmunix: Machine Check error corrected by processor
 
Time exactly the same as entry in "uerf"-formatted event log file 	
EVENT CLASS                             ERROR EVENT 
OS EVENT TYPE                  100.     CPU EXCEPTION
OCCURRED/LOGGED ON                      Fri Jun 21 22:45:56 1996
Also in crash-data.X error classified as Processor Machine Check (SCB:
670)
That's all.
Anyone have any ideas or similar problems?
Thanks for your help.
P.S.
Can anyone give me a e-mail point for Digital technical support service
or similar service for help in resolving this kind of problems?
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     Victor Barashco 
St.Petersburg Nuclear Physics Institute
System Manager
Post Address: St.Petersburg Nuclear Physics Institute,
              188350, Gatchina, St.Petersburg, Russia 
E-Mail:  victor_at_dbserv.pnpi.spb.ru
Phone :   +7-812-71-469-12
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Received on Mon Jun 24 1996 - 10:34:47 NZST