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Re: [Xen-devel] [PATCH v2] xen: prevent PVH Dom0 from having pages with more than one ref

On Fri, 13 Jun 2014 13:43:55 +0200
Roger Pau Monne <roger.pau@xxxxxxxxxx> wrote:

> With the current implementation of the Dom0 domain builder a PVH Dom0
> ends up with pages that have 2 references, which means they are not
> freed when Dom0 balloons memory down. This leads to those pages
> not being freed in guest_remove_page, so they are leaked and the
> memory accounting between Xen and Dom0 differs, because Dom0 OS
> actually thinks they are freed, but d->tot_pages is not decreased.

Ah, right. good catch. I agree with the changes...


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