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SubjectRe: Linux reboot
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>On Mar, 27 Ulrich Windl wrote:
>> The code (all from meory) tried to reset the system via keyboard
>> controller and hardware reset. If that fails the system goes into a
>> busy loop (not cli; hlt). Maybe we can have some fancy keyboard light
>> show instead (to notify the user that the system is ready for reset)?
>
>On Intel motherboards (both 486 and Pentium) keyboard controller is not able
>to reboot the system. There is a special port on such boards. Here is a
>fragment from Ralf Brown's Port List:
>
[details about port triggering reset on certain boards omitted]
>
>The simplest way to reboot, in my opinion, is to generate triple fault
>(LIDT with zero limit, then any INT). It should work everywhere.
>
> Yuri Per
>
>

But does that also reset the i/o system? (Controller boards, etc.) From what
I understand, the triple faulting procedure only reset the CPU itself.

Alain


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