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

[Ingo Molnar]

* huang ying <huang.ying.caritas@xxxxxxxxx> wrote:

> > What should be done instead is to add an event for unknown NMIs, which can 
> > then be processed by the RAS daemon to implement policy.
> >
> > By using 'active' event filters it could even be set on a system to panic 
> > the box by default.
> 
> If there is real fatal hardware error, maybe we have no luxury to go from NMI 
> handler to user space RAS daemon to determine what to do. System may explode, 
> bad data may go to disk before that.

That is why i suggested:

  > > By using 'active' event filters it could even be set on a system to panic 
  > > the box by default.

event filters are evaluated in the kernel, so the panic could be instantaneous, 
without the event having to reach user-space.

Thanks,

	Ingo
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