Re: [PATCH][RFC] exception processing in early boot

From: Andi Kleen
Date: Wed Aug 30 2006 - 16:03:49 EST


On Wednesday 30 August 2006 22:03, Willy Tarreau wrote:
> On Wed, Aug 30, 2006 at 09:36:54PM +0200, Andi Kleen wrote:
> >
> > > Andi, if you remove the HLT here, some CPUs will spin at full speed. This
> > > is nasty during boot because some of them might not have enabled their
> > > fans yet for instance
> >
> > That would be a severe bug in the platform. Basically always the fans are managed
> > by SMM code.
>
> It was just an example. Other examples include virtual machines never
> stopping because they will see the guest is working and not halted.

They have to deal with that anyways because the machine can just
crash with a busy loop. And BTW -- take a look at the normal panic.

-Andi

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