From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeremy Fitzhardinge <jeremy@goop.org>
Subject: Re: Re: xen/stable 2.6.32.9 32bit dom0 kernel crashes
	early on boot
Date: Mon, 22 Mar 2010 21:03:18 -0700
Message-ID: <4BA83D86.2050207@goop.org>
References: <20100304195337.GF2761@reaktio.net> <4BA2B7FA.4050306@goop.org>
	<alpine.LFD.2.00.1003192214430.23340@vega4.dur.ac.uk>
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To: M A Young <m.a.young@durham.ac.uk>
Cc: xen-devel@lists.xensource.com, Keir Fraser <keir.fraser@eu.citrix.com>, Konrad Rzeszutek Wilk <kliw@darnok.org>
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On 03/19/2010 03:20 PM, M A Young wrote:
>> Xen is 32 bit, right?
>>
>> Could you disassemble this whole function, so I can see what register 
>> the other half is in? (I'm guessing its ecx or esi; nothing else 
>> makes much sense.)
>
>
> I submitted an earlier report with a more complete dump of this 
> function, which is at 
> http://lists.xensource.com/archives/html/xen-devel/2010-02/msg00844.html
> The code may have changed slightly since then but it looks to be the 
> same issue.

OK, I just committed a fix for this.  The IOAPIC dummy mapping wasn't 
being created properly, and it was failing to mask out the unsupported 
PTE flags.

     J