Re: [patch] i386: early pagefault handler

[H. Peter Anvin]

Andi Kleen wrote:
> > +hlt_loop:
> > +	hlt
>
> There are still supported i386 CPUs that don't support HLT and
> would recursively fault here.

The HLT has been supported since 8086.  However, it was broken in some 
early 486s (not 386s); that's what the test in the kernel is for.

I don't remember what the failure mode was, though; didn't think it was 
recursive faulting.

	-hpa
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