From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ross Lagerwall <ross.lagerwall@citrix.com>
Subject: Re: [PATCH] x86/xen: Warn when there's no mfn for pfn
Date: Thu, 2 Apr 2015 10:10:42 +0100
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On 04/02/2015 10:00 AM, David Vrabel wrote:
> On 02/04/15 08:28, Ross Lagerwall wrote:
>> I recently had to debug dom0 taking a fatal page fault and it would have
>> been useful if it warned when creating a non-present pte if there's no
>> mfn for a pfn.
>
> This will trigger for ever PTE covering memory hotplugged by the balloon
> driver, so I don't think we can take this.
>

That's unfortunate, I thought there may be some issue where it would be 
triggered spuriously.

-- 
Ross Lagerwall