Re: [Xen-devel] [PATCH] tools/migrate: Prevent PTE truncation from being fatal duing the live phase

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Thu, Sep 01, 2016 at 10:45:03AM +0100, Andrew Cooper wrote:
> It is possible, when normalising a PV pagetable that the table has been freed
> and reused for something else by the guest.
> 
> In such a case, data read might no longer be a pagetable, and fail the
> truncation check.  However, this should only be fatal if we encounter such a
> page in the paused phase.
> 
> This check is now consistent with all other checks in the same area.
> 
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Reviewed-by: Wei Liu <wei.liu2@xxxxxxxxxx>

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