Date: Thu, 6 Nov 2008 10:30:20 +0100
From: Ingo Molnar <mingo@elte.hu>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>, Andi Kleen <andi@firstfloor.org>,
       Alexander van Heukelum <heukelum@fastmail.fm>,
       Cyrill Gorcunov <gorcunov@gmail.com>,
       Alexander van Heukelum <heukelum@mailshack.com>,
       LKML <linux-kernel@vger.kernel.org>,
       Thomas Gleixner <tglx@linutronix.de>, lguest@ozlabs.org,
       jeremy@xensource.com, Steven Rostedt <srostedt@redhat.com>,
       Mike Travis <travis@sgi.com>
Subject: Re: [PATCH RFC/RFB] x86_64, i386: interrupt dispatch changes
Message-ID: <20081106093020.GH4890@elte.hu>
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* H. Peter Anvin <hpa@zytor.com> wrote:

> Ingo Molnar wrote:
>>
>> yes, the accessed bit in the segment descriptor has to be updated 
>> in an atomic transaction: the CPU has to do a MESI coherent 
>> read+compare+write transaction, without damaging other updates to 
>> the 6 bytes segment descriptor.
>
> 8 bytes, rather.

heh, yes of course :-)

	Ingo
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