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Date:	Mon, 03 Nov 2008 12:02:53 +0200
From:	Avi Kivity <>
To:	Ingo Molnar <>
CC:	Andrey Borzenkov <>,
	Avi Kivity <>,,
	Andrew Morton <>,
	"Rafael J. Wysocki" <>,
	Linux Kernel Mailing List <>,
	Eduardo Habkost <>,
	"Eric W. Biederman" <>
Subject: Re: [PATCH] Use BIOS reboot on Toshiba Portege 4000

Ingo Molnar 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 
> this.

There is already some code being worked on for kdump (which suffers from 
the same symptoms), only kdump uses NMI IPIs for increased stopping 
power.  Eduardo, can you take a look at porting it to emergency reboot?

error compiling committee.c: too many arguments to function

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