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

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Fri, Sep 02, 2016 at 09:30:03AM +0100, Wei Liu wrote:
> 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>

Pushed.

Ian, please backport this to Xen 4.6 and 4.7.

Wei.

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