server unexpectedly shutdown

Hi ALL
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 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
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

On 16 ÏËÔ, 04:17, Mike Bleiweiss <unixg... RemoveThis @yahoo.com> wrote:
> On Tue, 14 Oct 2008 03:47:17 -0700, GLADtr wrote:
> > Hi ALL
> > what is may be?
>
> Looks like bad RAM to me. šPad address glitch refers to an address strobe
> problem. šBad RAM = random shutdowns.

Thanks Mike!
I have suspect what problem is hardware, but don`t sure
Are you have as same problem in practical?