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Re: [Xen-devel] Where can I get a balloon driver to test PoD

To: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Where can I get a balloon driver to test PoD
From: George Dunlap <George.Dunlap@xxxxxxxxxxxxx>
Date: Wed, 22 Sep 2010 09:27:12 +0100
Cc: "Jiang, Yunhong" <yunhong.jiang@xxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Jan Beulich <JBeulich@xxxxxxxxxx>
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Yunhong: FYI, as of yesterday booting PoD with this kernel doesn't
work correctly, due to some math error.  The balloon driver will
balloon down, but is about 8 megs off.  So eventually the guest OS
will try to populate those pages, and the guest will crash.  I suspect
it probably has to do with libxl not accounting for the video ram
properly, but I haven't had a chance to look into it.


On Tue, Sep 21, 2010 at 5:53 PM, Stefano Stabellini
<stefano.stabellini@xxxxxxxxxxxxx> wrote:
> On Mon, 13 Sep 2010, George Dunlap wrote:
>> Yunhong:
>> When I originally developed the balloon drivers about a year ago, it
>> was possible to compile PV drivers externally, from
>> xen.hg/unmodified_drivers/linux-2.6 using Debian's stock kernel.
>> However, since that time, things have changed and I haven't been able
>> to.
>> The system I'm using now actually uses one of Stefano Stabellini's
>> "pv-on-hvm" trees.  It's a bit experimental, but stable enough, and
>> the balloon driver seems to be working.  He's on holiday now, but you
>> can cc him and ask.
> you might want to checkout:
> git://xenbits.xen.org/people/sstabellini/linux-pvhvm.git 2.6.35-rc5-pvhvm-v7
> this is upstream Linux pv on hvm plus few patches and one of them
> enables ballooning.
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