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Re: [Xen-devel] can't create any more pv-on-hvm domains after~38under 3.

To: James Harper <james.harper@xxxxxxxxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxxxx>
Subject: Re: [Xen-devel] can't create any more pv-on-hvm domains after~38under 3.3-testing
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Wed, 03 Dec 2008 11:20:09 +0000
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On 03/12/2008 10:51, "James Harper" <james.harper@xxxxxxxxxxxxxxxx> wrote:

> And so on up until domain 35 which is the last one I was able to
> create... none of those domains exist anymore, but when they did exist
> they were all x32 HVM domains running Windows 2003 x32. Xen and Dom0 are
> both amd64.

Looks like each domain has one outstanding write reference remaining to a
data page. Usually that's a backend driver or daemon in dom0 not releasing a
mapping.

 -- Keir



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