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Re: [Xen-devel] Live migration fails under heavy network use

On 22/2/07 19:55, "John Levon" <levon@xxxxxxxxxxxxxxxxx> wrote:

> I also see a fair amount of:
> Dom48 freeing in-use page 2991 (pseudophys 100a4): count=2 type=e8000000
> Ian mentioned that these could be harmless. Is this because dom0 has
> mapped the page for suspending? And if so, why is the count two not one?

Yes, it's because of the extra dom0 mapping. The count is 2 because one
reference is held at this point by the freeing function in Xen.

The comment above that warning in the Xen source is a bit strong. I don't
think we can change the semantics of the existing command but we may add a
new one to let the caller know whether the page(s) could immediately be

 -- Keir

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