linux-kernel - Re: [PATCH 9/11] Panic delay fix

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Message-ID: <20070208082443.GA9928@muc.de>
Date:	Thu, 8 Feb 2007 09:24:43 +0100
From:	Andi Kleen <ak@....de>
To:	Zachary Amsden <zach@...are.com>
Cc:	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...l.org>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	Chris Wright <chrisw@...s-sol.org>
Subject: Re: [PATCH 9/11] Panic delay fix

On Wed, Feb 07, 2007 at 02:31:57PM -0800, Zachary Amsden wrote:
> Dmitry Torokhov wrote:
> >
> >I am confused - does i8042 talk to a virtual or real hardware here? In
> >any case I think you need to fix kernel/panic.c to have proper
> >(m)delay, not mess with i8042.
> 
> I think I need to fix both of them actually.  This is virtual hardware, 
> but when you grab focus on a VM, the virtual hardware gets reflected to 
> the actual physical keyboard.  Driving physical hardware that fast is bad.

???

Surely the physical keyboard is always handled by the host kernel? 
I hope you're not saying it's trying to access the io ports directly?

-Andi
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