[Xen-devel] [PATCH] Re: about fixup_page_fault

[Tim Deegan <Tim.Deegan@xxxxxxxxxx>]

Don't ever call the shadow code to fix a page fault in an external-mode
guest if the fault came from Xen; it would be making changes to the
wrong pagetables, potentially causing a pagefault loop in Xen.

Signed-off-by: Tim Deegan <Tim.Deegan@xxxxxxxxxx>


At 11:08 +0000 on 17 Dec (1229512101), Keir Fraser wrote:
> I certainly think that something like the patch you proposed would cause a
> better failure mode.
> 
> Kevin: Can you try out what Tim proposed and if it indeed makes things
> better (at least, you get a proper crash!) we should get that checked in.
> 
>  -- Keir

-- 
Tim Deegan <Tim.Deegan@xxxxxxxxxx>
Principal Software Engineer, Citrix Systems (R&D) Ltd.
[Company #02300071, SL9 0DZ, UK.]

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