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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