From: Andi Kleen <andi@firstfloor.org>
To: Avi Kivity <avi@qumranet.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>, 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 14:31:22 +0200 [thread overview]
Message-ID: <87tzd8rm91.fsf@basil.nowhere.org> (raw)
In-Reply-To: <48B3F3A9.8030709@qumranet.com> (Avi Kivity's message of "Tue, 26 Aug 2008 15:14:33 +0300")
Avi Kivity <avi@qumranet.com> writes:
>
> 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.
Even if it's wired to the launch controller the launch controller
would need to be quite quick to do something before the following
triple fault/keyboard reset->PCI reset stops it again.
-Andi
next prev parent reply other threads:[~2008-08-26 12:31 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
2008-08-26 12:31 ` Andi Kleen [this message]
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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