Re: [PATCH] Use BIOS reboot on Toshiba Portege 4000

From: Ingo Molnar
Date: Mon Nov 03 2008 - 04:10:17 EST



* Andrey Borzenkov <arvidjaar@xxxxxxx> wrote:

> Subject: [PATCH] Use BIOS reboot on Toshiba Portege 4000
>
> From: Andrey Borzenkov <arvidjaar@xxxxxxx>
>
> After commit c7ffa6c26277b403920e2255d10df849bd613380 which defaults
> to reboot via ACPI keyboard is dead on Toshiba Portege 4000 upon reboot.
> Power off is required to revive it again. Add DMI entry to force BIOS
> reboot method as it was before.
>
> Signed-off-by: Andrey Borzenkov <arvidjaar@xxxxxxx>

Avi, i expect more boxes to be affected by this bug, and the DMI
solution just does not scale.

So could we please disable VMX from the emergency-shutdown code
instead of twiddling with the reboot method?

Something like this might work as well: iff VMX is enabled, we just do
smp_send_stop() (instead of skipping it) which should take care of
this.

Ingo
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