Re: [RFC] x86, NMI, Treat unknown NMI as hardware error

[Huang Ying]

On 05/17/2011 03:44 AM, Cyrill Gorcunov wrote:
> On 05/16/2011 05:09 AM, Huang Ying wrote:
> ...
>>>
>>>   I'm personally fine even if it's enabled by default, only worried to have
>>> an option to disable hwerr from boot line.
>>
>> The white list mechanism is not sufficient?  Spurious unknown NMI can
>> occur on white list machines?  People don't want to protect their data?
>>
> 
>   I suppose no, it's not sufficient considering how many cpu errata already
> out in general. And I see no guarantee that unknown NMIs never triggers on
> white list machines and I know that you know that as well ;)

I write this patch because I believe white listed machines will not
generate unknown NMI for no good reason ;)

If we just want to push the unknown NMI logic to user space, existing
"unknown_nmi_panic" is sufficient.

Best Regards,
Huang Ying
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/