2003-06-16 22:36:46

by Michal Jaegermann

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Subject: [x86_64] soft power-off question

Is it possible to turn off power on a dual processor x86_64 board with
'halt -p' or similar? If yes then what is needed on a kernel level?
I know that this does not work with "distribution" kernels.
What about single processor boards (although I did not see yet
one of x86_64 kind :-)?

Michal


2003-06-17 07:13:02

by Andi Kleen

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Subject: Re: [x86_64] soft power-off question

Michal Jaegermann <[email protected]> writes:

> Is it possible to turn off power on a dual processor x86_64 board with
> 'halt -p' or similar? If yes then what is needed on a kernel level?

You need ACPI.

> I know that this does not work with "distribution" kernels.

It works fine with SuSE kernels.

-Andi