From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeremy Fitzhardinge <jeremy@goop.org>
Subject: Re: xen.git branch reorg / crash with	2.6.30-rc3	pv_ops
	dom0
Date: Tue, 28 Apr 2009 10:30:00 -0700
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To: Ian Campbell <Ian.Campbell@eu.citrix.com>
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Ian Campbell wrote:
>> Interesting.  Curiously its working for me on my machine, but has a 
>> tendency to crash a bit later with a protection fault on an RO page 
>> during memory allocation.  I wonder if its related...
>>     
>
> Certainly smells similar.
>   

Yeah.  The fault in both cases has an error-code of 3, so a write 
protect fault.  It suggests a pinned page is getting freed into the 
general heap for some reason.  Except there are no complaints from Xen 
about writes into a pagetable, so that makes it look like page is being 
made RO but not (left) pinned.

    J