Re: balloon manipulation within a domU?

[Roger Pau Monne <roger.pau%citrix.com@localhost>]

Cherry G. Mathew wrote:
> On 2 August 2012 07:51, Aaron J. Grier <agrier%poofygoof.com@localhost> wrote:
>> On Wed, Aug 01, 2012 at 10:57:43AM +0100, Cherry G. Mathew wrote:
>>>> the problem seems to be that the domU cannot write its own memory /
>>>> target entry.
>>> What is your dom0 setup ? xen kernel/tools version ? Does this hit you
>>> from within a Linux domU ?
>> I'm running NetBSD 6.0_BETA2 as Dom0:
>> host                   : pythagoras.poofy.goof.com
>> release                : 6.0_BETA2
>> version                : NetBSD 6.0_BETA2 (XEN3_DOM0) #2: Mon Jun 11 
>> 16:27:07 PDT 2012 
>> agrier%pythagoras.poofy.goof.com@localhost:/disk/teraraid/obj/amd64/disk/teraraid/NetBSD/6/src/sys/arch/amd64/compile/XEN3_DOM0
>>
>> xenkernel41-4.1.2 and xentools41-4.1.2nb5 are compiled from pkgsrc.
>>
>> I haven't tried a Linux domU, but I think I have some OpenSUSE isos I
>> could try.
> 
> If the problem still persists, would be nice if you could file a PR so
> this doesn't slip through the cracks

I don't think Xen allows DomUs to change it's memory target, you can
only modify the memory target from the Dom0, because the xenstore
entries are protected (r/w from Dom0, r from DomU).

/local/domain/9/memory/target = "1048577"   (n0,r9)