[RFC][PATCH] Add a sysctl option controlling kexec when MCE occurred

[Seiji Aguchi]

Hi,

I agree with Borislav that kexec shouldn't start at all because we can't guarantee 
a stable system anymore when MCE is reported.

On the other hand, I understand there are people like Andi who want to start kexec 
even if MCE occurred.

That is why I propose adding a new option controlling kexec behaviour when MCE occurred.

I don't stick to "sysctl".
I suggest to add a new boot parameter instead of sysctl because users can't change 
their configuration once the boot parameter is set.

I will resend the patch if it is acceptable.

Regards,

Seiji