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Date:	Mon, 3 Nov 2008 10:08:43 +0100
From:	Ingo Molnar <>
To:	Andrey Borzenkov <>, Avi Kivity <>
Cc:,, Andrew Morton <>,
	"Rafael J. Wysocki" <>,
	Linux Kernel Mailing List <>
Subject: Re: [PATCH] Use BIOS reboot on Toshiba Portege 4000

* Andrey Borzenkov <> wrote:

> Subject: [PATCH] Use BIOS reboot on Toshiba Portege 4000
> From: Andrey Borzenkov <>
> 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 <>

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 

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