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Re: [Xen-devel] xm info showing too much free ram

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Subject: Re: [Xen-devel] xm info showing too much free ram
From: Hans-Christian Armingeon <johnny@xxxxxxxxxx>
Date: Tue, 4 Apr 2006 12:44:39 +0200
Cc: Ewan Mellor <ewan@xxxxxxxxxxxxx>
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Hello Keir,

is it difficult to fix that?

Maybe this is only a two liner.


Am Montag, 3. April 2006 19:10 schrieb Ewan Mellor:
> On Mon, Apr 03, 2006 at 05:45:07PM +0100, Keir Fraser wrote:
> > 
> > On 30 Mar 2006, at 19:43, Hans-Christian Armingeon wrote:
> > 
> > >My dom0 has 2g ram allocated, and I have 2.5 G Ram physically in my 
> > >machine.
> > >I needed more Ram in domU so I did a
> > 
> > If you don't start your domU with a 'mem=2G' or similar as a boot 
> > parameter then the domU will be unable to increase its memory 
> > allocation beyond its initial boot-time allocation. In this case, 'xm 
> > list' is lying to you -- it tells you what memory target the tools has 
> > asked the domU to aim for, not what the domU is currently using. :-)
> > 
> > That's my guess anyway -- the free memory reported by 'xm info' is 
> > definitely the truth, so 'xm list' is lying and that's probably the 
> > reason why. Take a look in the domU and see what it thinks. Also in the 
> > domU, look at the contents of /proc/xen/balloon.
> Yes, that's right -- xm list shows the configured or requested memory, not the
> amount it's actually using.  Personally, I'd consider that a bug -- feel free
> to file it.
> Ewan.
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