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Re: [Qemu-devel] [Qemu-ppc] broken incoming migration

From: Benjamin Herrenschmidt
Subject: Re: [Qemu-devel] [Qemu-ppc] broken incoming migration
Date: Thu, 13 Jun 2013 00:11:39 +1000

On Wed, 2013-06-12 at 10:00 -0400, Paolo Bonzini wrote:
> The only bug we have is not a performance bug related to compression;
> it's that writing zero pages breaks overcommit.  Let's fix that, and
> only that.

Right, do we have a way to madvise "throw away" these instead ? Or do we
have a way to track that the platform init code did write something
there and only clear *those* pages ?


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