Re: port-xen/46836: cannot change memory in domU via balloon

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Sat, Aug 25, 2012 at 07:30:10AM +0000, agrier%poofygoof.com@localhost wrote:
> >Description:
> the xen balloon driver in domU does not appear to be able to request a
> change in memory.
> 
> this works in linux with a stock fedora 17 kernel 3.5.2, IE 'echo
> $NEWMEMSIZE > /sys/devices/system/xen_memory/xen_memory0/target' within
> a linux domU will change the amount of memory the domU is using.
> >How-To-Repeat:
> # sysctl -w machdep.xen.balloon.target=1048576  
> machdep.xen.balloon.target: 2621440 -> 1048576
> # dmesg | tail -1
> balloon0: error 13, couldn't write xenbus target node

Looks like Xen is rejecting the change. Does your fedora 17 run on the
same dom0 ?

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--