Re: balloon manipulation within a domU?

["Cherry G. Mathew" <cherry.g.mathew%gmail.com@localhost>]

On 27 July 2012 21:52, Aaron J. Grier <agrier%poofygoof.com@localhost> wrote:
> On Thu, Jul 26, 2012 at 11:12:25AM +0100, Cherry G. Mathew wrote:
>> On 24 July 2012 07:33, Aaron J. Grier <agrier%poofygoof.com@localhost> wrote:
>> > manipulating a NetBSD domU's memory seems to work fine with "xl
>> > mem-set", but trying to manipulate this within the domU with "sysctl
>> > -w machdep.xen.balloon.target=XXXX" yields "error 13, couldn't write
>> > xenbus target node".
>>
>> Could you post what
>> # xenstore-ls
>>
>> says from the dom0 ?
>> There should be an entry for memory/target
>
> there is such an entry, and I can change the target from the dom0 side.
> I've attached the full output.
>

Thanks, looks ok to me.

>> > is there something I need to enable in my xen configuration to allow
>> > a domU to do its own balloon requests?
>
> the problem seems to be that the domU cannot write its own memory /
> target entry.
>
> thanks for looking at this.  hopefully it's something simple.


What is your dom0 setup ? xen kernel/tools version ? Does this hit you
from within a Linux domU ?


-- 
~Cherry