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Re: [Xen-devel] Re: xen/stable 32bit dom0 kernel crashes early

To: M A Young <m.a.young@xxxxxxxxxxxx>
Subject: Re: [Xen-devel] Re: xen/stable 32bit dom0 kernel crashes early on boot
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Fri, 19 Mar 2010 15:57:06 -0700
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Keir Fraser <keir.fraser@xxxxxxxxxxxxx>, Konrad Rzeszutek Wilk <kliw@xxxxxxxxxx>
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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.

I think so too. The question is where that set_pte is coming from, and why does it have NX set even though the CPU doesn't support it? I'm setting up a Xen test domain at the moment, so I'll have a look into it.


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