Re: [Xen-users] Dom0 Memory?

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

> On Fri, May 11, 2012 at 3:27 PM, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:
> > On Fri, 2012-05-11 at 09:11 +0100, Ian Tobin wrote:
> 
> >> Xl info
> >>
> >> total_memory      : 15869
> >> free_memory      Â: 13124
> 
> 
> >> Now I create a new config file for VM2 and I set the RAM
> >>
> >> memory = 12288
> 
> >> libxl: error: libxl.c:2150:libxl_set_memory_target new target 0 for dom0 is
> below the minimum threshold
> >>
> >> failed to free memory for the domain
> >>
> >> Why it is trying to take memory from dom0??
> >
> > You need to set "autoballoon=0" in /etc/xen/xl.conf if you don't want xl
> > to automatically balloon dom0 down when starting a domain -- for example
> > if you use the dom0_mem option.
> >
> > Ian.
> 
> Isn't that a bug? Shouldn't xl try to use free_memory first, and only
> try to baloon-down memory from dom0 if it still needs more?

Even if this is an unsupported configuration, it could actually be a
bug.
Could you please post the output of xenstore-ls?

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