Server unexpect shutdown

From: GLADtr <my.nwsgrp_at_gmail.com>
Date: Thu, 16 Oct 2008 19:28:43 -0700 (PDT)
Message-ID: <e087bec0-1915-4933-b214-162867cc6cef@v72g2000hsv.googlegroups.com>

Hi all.
Help me please!
what is may be ?

SYSTEM REDHAT 4
uname -a
Linux edw1 2.6.9-67.0.0.0.1.ELsmp #1 SMP Sun Nov 18 01:06:10 EST 2007 x86_64 x86_64 x86_64 GNU/Linux
Oracle 10.2.0.4

I`m look in all log files.
once suspected in dmesg

ACPI: Processor [CPU0] (supports C1)
ACPI: Processor [CPU1] (supports C1)
ACPI: Processor [CPU6] (supports C1)
ACPI: Processor [CPU7] (supports C1)
ACPI: Processor [CPU8] (supports C1)
ACPI: Processor [CPU9] (supports C1)
ACPI: Processor [CPUE] (supports C1)
ACPI: Processor [CPUF] (supports C1)
________________________________________________

Losing some ticks... checking if CPU frequency changed.

---

microcode: CPU0 already at revision 0x16 (current=0x16)
microcode: CPU1 already at revision 0x16 (current=0x16)
microcode: CPU2 already at revision 0x16 (current=0x16)
microcode: CPU3 already at revision 0x16 (current=0x16)
microcode: CPU4 already at revision 0x16 (current=0x16)
microcode: CPU5 already at revision 0x16 (current=0x16)
microcode: CPU6 already at revision 0x16 (current=0x16)
microcode: CPU7 already at revision 0x16 (current=0x16)
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

and

once error find in the mcelog

MCE 0
CPU 7 BANK 4 TSC 4f58cf631fca4
MCG status:
MCi status:
Error enabled
MCA:BUS Generic Generic Generic Other-transaction Request-timeout Error
Model:Pad address glitch

STATUS 9000080110800e0f MCGSTATUS 0
MCE 1
CPU 6 BANK 4 TSC 4f58cf6321e0a
MCG status:
MCi status:
Error enabled
MCA:BUS Generic Generic Generic Other-transaction Request-timeout Error
Model:Pad address glitch

STATUS 9000080110800e0f MCGSTATUS 0
MCE 0
CPU 9 BANK 4 TSC 960e0d4f7b60
MCG status:
MCi status:
Error enabled
MCA:BUS Generic Generic Generic Other-transaction Request-timeout Error
Model:Pad address glitch

STATUS 9000080210800e0f MCGSTATUS 0
MCE 1
CPU 8 BANK 4 TSC 960e0d4f7e26
MCG status:
MCi status:
Error enabled
MCA:BUS Generic Generic Generic Other-transaction Request-timeout Error
Model:Pad address glitch

STATUS 9000080210800e0f MCGSTATUS 0
MCE 0
CPU 1 BANK 0 TSC 2105f9ef4c1fc
MISC 14000240002a4 ADDR 208c54080
MCG status:
MCi status:
Error overflow
MCi_MISC register valid
MCi_ADDR register valid
MCA:Generic CACHE Level-1 Snoop Error
STATUS cc00000120040189 MCGSTATUS 0
MCE 1
CPU 1 BANK 1 TSC 2105f9ef4ee2a
MCG status:
MCi status:
MCA:Data CACHE Level-1 Data-Read Error
STATUS 8000001800000135 MCGSTATUS 0
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
/var/log/messages
>>>>>>>>>>>>>>>>>>>>>>>>>>>

Sep 29 10:30:33 edw1 kernel: SMB connection re-established (-5) Sep 29 10:32:54 edw1 sshd(pam_unix)[19592]: session closed for user oracle
Sep 29 11:04:51 edw1 sshd(pam_unix)[2505]: session opened for user root by (uid=0)

Sep 29 11:05:22 edw1 observiced: observiced shutdown succeeded
Sep 29 11:05:29 edw1 observiced: observiced startup succeeded
Sep 29 11:05:57 edw1 sshd(pam_unix)[2505]: session closed for user

root
Sep 29 11:42:11 edw1 sshd(pam_unix)[17458]: session opened for user oracle by (uid=0)

Sep 29 11:45:27 edw1 su(pam_unix)[18877]: session opened for user root by oracle(uid=200)

Sep 29 11:45:28 edw1 observiced: observiced shutdown succeeded
Sep 29 11:53:44 edw1 su(pam_unix)[18877]: session closed for user root
Sep 29 11:53:49 edw1 kernel: SMB connection re-established (-5)

Oct 5 04:02:03 edw1 kernel: SMB connection re-established (-5) Oct 5 04:02:05 edw1 snmpd[7107]: Received TERM or STOP signal... shutting down...
Oct 5 04:02:05 edw1 snmpd: snmpd shutdown succeeded Oct 5 04:02:05 edw1 snmpd: snmpd startup succeeded Received on Thu Oct 16 2008 - 21:28:43 CDT