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

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Message-ID: <12bfabe40812061343j400f55d8r43571c8bd514adde@mail.gmail.com>
Date:	Sat, 6 Dec 2008 22:43:24 +0100
From:	"Giangiacomo Mariotti" <gg.mariotti@...il.com>
To:	"Robert Hancock" <hancockr@...w.ca>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [HW PROBLEM] Intel I7 MCE. Erratum or not?

On Sat, Dec 6, 2008 at 9:58 PM, Robert Hancock <hancockr@...w.ca> wrote:
> Giangiacomo Mariotti wrote:
>>
>> Hi everyone,
>> Mcelog just logged on my new Intel I7 920 (on Linux 2.6.27.8) this :
>> 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
>>
>> I'm reporting this here, because I found in the Intel I7 Technical
>> Specification November 2008 update that something which seems very
>> similar is in fact an erratum. So my question is : Is there any way
>> for me to verify that my problem is due to one of those errata,instead
>> of a broken hardware(if we don't want to consider all those errata as
>> broken hardware)? I'm also reporting this because I thought it may be
>> useful to signal that(if actually due to those errata) these problems
>> actually occur, so it may be useful to find workarounds in the kernel
>> to not scare to death poor Linux users!
>
> Which erratum are you talking about? I don't see one in that document that
> would match this case..
>
Well, the first one seems very similar, even if it talks about a dtlb
error instead of cache error. But sure,being similar doesn't mean too
much. Number 52 seems similar too. I guess I should just give up and
admit that my hardware is broken!
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