Re: [PATCH 22/25] x86/mcheck: Do the init in one place

From: Sebastian Andrzej Siewior
Date: Thu Nov 10 2016 - 05:27:51 EST


On 2016-11-10 11:22:22 [+0100], Thomas Gleixner wrote:
>
> Why on earth do we enable MCE stuff in identify_cpu() ?
so it happens asap.

Boris' mail in this thread:
|Uh, hm, I'm not sure about this: so the issue I see with this is that
|the more we're delaying the enabling or MCE reporting - and especially
|setting CR4[MCE] - the more we're increasing the window where a MCE
|during early boot will cause a shutdown. (This is what happens if
|CR4[MCE]=0b).

> Thanks,
>
> tglx

Sebastian