linux-kernel - Re: [HW PROBLEM] Intel I7 MCE. Erratum or not?

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Message-ID: <12bfabe40812072248n3c931ce0hf030b3ac758026d4@mail.gmail.com>
Date:	Mon, 8 Dec 2008 07:48:00 +0100
From:	"Giangiacomo Mariotti" <gg.mariotti@...il.com>
To:	"Arjan van de Ven" <arjan@...radead.org>
Cc:	"Robert Hancock" <hancockr@...w.ca>, linux-kernel@...r.kernel.org
Subject: Re: [HW PROBLEM] Intel I7 MCE. Erratum or not?

I noticed something else, which though may be due to my inexperience
with mce messages. In my directory /sys/devices/system/machinecheck
there are machinecheck0-7(one for each logical cpu of my system I
presume). Having received the MCE log always for cpu 0, I went to look
inside dir machinecheck0 and I found bank0-5ctl. So now my question
is, why do I receive MCE logs about bank 6, if my cpus don't have a
bank 6? Does that count start from 1? Or am I missing something else?

Log of MCEs(They all happended once for each reboot):

"Boot 0"
MCE 0
HARDWARE ERROR. This is *NOT* a software problem!
Please contact your hardware vendor
CPU 0 BANK 6 MISC 202d ADDR ffeef740
MCG status:
MCi status:
Error overflow
Uncorrected error
MCi_MISC register valid
MCi_ADDR register valid
Processor context corrupt
MCA: Generic CACHE Level-2 Data-Write Error
STATUS ee0000000100014a MCGSTATUS 0

"Boot 1"
MCE 0
HARDWARE ERROR. This is *NOT* a software problem!
Please contact your hardware vendor
CPU 0 BANK 6 MISC 308 ADDR ffefac00
MCG status:
MCi status:
Error overflow
Uncorrected error
MCi_MISC register valid
MCi_ADDR register valid
Processor context corrupt
MCA: Generic CACHE Level-2 Read Error
STATUS ee0000000100011a MCGSTATUS 0

"Boot 2"
MCE 0
HARDWARE ERROR. This is *NOT* a software problem!
Please contact your hardware vendor
CPU 0 BANK 6 MISC 212d ADDR ffef77c0
MCG status:
MCi status:
Error overflow
Uncorrected error
MCi_MISC register valid
MCi_ADDR register valid
Processor context corrupt
MCA: Generic CACHE Level-2 Data-Write Error
STATUS ee0000000100014a MCGSTATUS 0

"Boot 3"
MCE 0
HARDWARE ERROR. This is *NOT* a software problem!
Please contact your hardware vendor
CPU 0 BANK 6 MISC 202d ADDR ffee0280
MCG status:
MCi status:
Error overflow
Uncorrected error
MCi_MISC register valid
MCi_ADDR register valid
Processor context corrupt
MCA: Generic CACHE Level-2 Data-Write Error
STATUS ee0000000100014a MCGSTATUS 0

"Boot 4"
MCE 0
HARDWARE ERROR. This is *NOT* a software problem!
Please contact your hardware vendor
CPU 0 BANK 6 MISC 202d ADDR ffef5cc0
MCG status:
MCi status:
Error overflow
Uncorrected error
MCi_MISC register valid
MCi_ADDR register valid
Processor context corrupt
MCA: Generic CACHE Level-2 Data-Write Error
STATUS ee0000000100014a MCGSTATUS 0

"Boot 5"
MCE 0
HARDWARE ERROR. This is *NOT* a software problem!
Please contact your hardware vendor
CPU 0 BANK 6 MISC 212d ADDR ffef2f40
MCG status:
MCi status:
Error overflow
Uncorrected error
MCi_MISC register valid
MCi_ADDR register valid
Processor context corrupt
MCA: Generic CACHE Level-2 Data-Write Error
STATUS ee0000000100014a MCGSTATUS 0

Thanks for the help,

Giangiacomo
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