linux-kernel - Re: [PATCH] x86: default to reboot via ACPI

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Date:	Mon, 25 Aug 2008 12:32:57 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Avi Kivity <avi@...ranet.com>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: Re: [PATCH] x86: default to reboot via ACPI


* Avi Kivity <avi@...ranet.com> wrote:

> Triple-fault and keyboard reset may assert INIT instead of RESET; 
> however INIT is blocked when Intel VT is enabled.  This leads to a 
> partially reset machine when invoking emergency_restart via sysrq-b: 
> the processor is still working but other parts of the system are dead.
> 
> Default to rebooting via ACPI, which correctly asserts RESET and 
> reboots the machine.
> 
> This is safe since we will fall back to keyboard reset and triple 
> fault if acpi is not enabled or if the reset is not successful.
> 
> Signed-off-by: Avi Kivity <avi@...ranet.com>

applied to tip/x86/reboot - thanks Avi!

	Ingo
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