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Re: [Xen-devel] GPLPV memory ballooning and x32

On Sun, May 23, 2010 at 08:55:53PM +0100, Keir Fraser wrote:
> On 23/05/2010 19:23, "Aravindh Puthiyaparambil" <aravindh@xxxxxxxxxx> wrote:
> > I am running on CentOS 5.4
> > xen_major              : 3
> > xen_minor              : 1
> > xen_extra              : .2-194.3.1.el5
> > 
> > I have memory=8G and maxmem=8G in my HVM config file and I am trying balloon
> > up and down between 1G and 8G. This works with x64 Windows. With x32 I see 
> > the
> > change only within Windows i.e. Free memory in task manager. Xentop does not
> > reflect the change. BTW, this is with the latest PV driver from James.
> > 
> > What is the warning message that I should be seeing on the console? I am not
> > seeing anything on the console or in xend.log.
> You should see lines saying things like "memory_op 1" and memory_op 6" on
> the Xen console (e.g., via 'xm dmesg'). So actually not very helpful warning
> messages. But anyway, the warnings are somewhat beside the point: 32-bit HVM
> ballooning will absolutely definitely not work on 64-bit Xen 3.1. It's not
> going to be fixed. You need at least Xen 3.3 for that functionality.

.. then again Redhat has many backports from newer Xen releases in their 3.1.2 
I don't know if this feature is backported.. probably not.

-- Pasi

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