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Re: [Xen-devel] [PATCH] [Xen] Check FADT's signature

To: Stefan Berger <stefanb@xxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH] [Xen] Check FADT's signature
From: Keir Fraser <keir@xxxxxxxxxxxxx>
Date: Fri, 10 Aug 2007 19:21:43 +0100
Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxxxx>
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On 10/8/07 18:00, "Stefan Berger" <stefanb@xxxxxxxxxx> wrote:

(XEN) map_pages_to_xen : 3533                                                       (that's the line number)
(XEN) 0xfff9b000 was NOT present.

Something between (*) and here seems to trash this presence flag.
paging_init() and many others lie in between the upper call and this one here. Could be a side effect of this? Maybe that tlb flush at the right place in one of these functions would solve the problem?

Yes, this now looks likely and that’s rather scary. We’ll go after this next week.

 -- Keir

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