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DateFri, 17 Nov 2006 22:41:44 -0800
From"H. Peter Anvin" <>
SubjectRe: [PATCH 20/20] x86_64: Move CPU verification code to common file
Andi Kleen wrote:
>> May hang be done optional? There was a discussion about applying
>> "panic" reboot timeout here. Is it possible to implement somehow?
> 
> It would be tricky, but might be possible.  But that would be a completely
> new feature -- the kernel has always hung in this case. If you think you need 
> it submit a (followup) patch. But I don't think it's fair to ask Vivek to do it.
> 
> Besides i don't think it would be any useful. panic reboot only
> makes sense if you can recover after reboot. But if your CPU somehow
> suddenly loses its ability to run 64bit code, no reboot of the world will 
> recover.
> 

Not true.  Some bootloaders support a fallback kernel.  This case is 
particular important if one accidentally installs the wrong kernel for 
the machine.

	-hpa
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