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From: Avi Kivity <avi@qumranet.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Pavel Machek <pavel@suse.cz>, Ingo Molnar <mingo@elte.hu>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Subject: Re: [PATCH] x86: default to reboot via ACPI
Date: Tue, 26 Aug 2008 15:14:33 +0300	[thread overview]
Message-ID: <48B3F3A9.8030709@qumranet.com> (raw)
In-Reply-To: <20080826113317.520cbab1@lxorguk.ukuu.org.uk>

Alan Cox wrote:
>> It seems excessive.  Most machines will hardly run without acpi.
>>     
>
> *Recent* machines.
>   

Most machines are recent machines.

If a machine doesn't have acpi, this change is safe.

If a machine has acpi, but doesn't have the reset register set in the 
FADT, this change is safe.

If a machine has acpi, and the reset register is set incorrectly, this 
change is safe.

If a machine has acpi, and the reset register is wired to the launch 
controller, then perhaps this change is unsafe.  Don't issue sysrq-b on 
such machines.

-- 
error compiling committee.c: too many arguments to function


  reply	other threads:[~2008-08-26 12:14 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-08-25 10:11 [PATCH] x86: default to reboot via ACPI Avi Kivity
2008-08-25 10:32 ` Ingo Molnar
2008-08-26  9:50 ` Pavel Machek
2008-08-26 10:05   ` Avi Kivity
2008-08-26 10:33     ` Alan Cox
2008-08-26 12:14       ` Avi Kivity [this message]
2008-08-26 12:31         ` Andi Kleen
2008-08-26 13:24         ` Maciej W. Rozycki
2008-08-26 13:33           ` Avi Kivity
2008-08-26 14:12             ` Pavel Machek
2008-08-26 14:50               ` Maciej W. Rozycki
2008-08-26 14:24             ` Maciej W. Rozycki
2008-08-26 16:10             ` Alan Cox
2008-08-26 16:16           ` Andi Kleen
2008-08-27  9:18             ` Pavel Machek
2008-08-27 10:51               ` Avi Kivity
2008-08-27 13:13                 ` Pavel Machek
2008-08-26 11:03     ` Frans Meulenbroeks
2008-08-26 10:52       ` Alan Cox
2008-08-26 11:07       ` Ingo Molnar
2008-08-26 10:36   ` Ingo Molnar
2008-08-26 11:26   ` Andi Kleen

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