Re: [PATCH 3/3] ie31200_edac: Add driver

[Jason Baron <jbaron@akamai.com>]

On 04/09/2014 03:14 PM, Borislav Petkov wrote:
> On Wed, Apr 09, 2014 at 02:57:19PM -0400, Jason Baron wrote:
>> Right, so maybe the fact that its a desktop chipset means that it
>> behaves differently and doesn't raise MCEs on memory errors. We have a
>> bunch of these processors and we haven't yet seen an MCE raised on a
>> memory error.
> 
> This can't be - an uncorrectable error will have to generate a machine
> check exception if consumed - there's no other option.
> 
> Can you do
> 
> rdmsr 0x179
> rdmsr 0x17b
> 
> and paste the results here?
>

Unfortunately, the box reporting the ue errors just went into transit (so
that I can better examine this issue), so I will probably not be able to
run this experiment on that specific box until next week.

However, I was able to run it on a very similar box (same pci id for the
mch), and I get:
 
# ./rdmsr 0x179
c09

# ./rdmsr 0x17b
rdmsr: CPU 0 cannot read MSR 0x0000017b

Thanks,

-Jason