[ovirt-users] [FC22] testing oVirt 3.6.2 : Hot plug memory not working

Hi, I am using oVirt 3.6.2 on FC22 box, all-in-one installation, my purpose is to test it. I am using a simple Desktop : - one cpu core i5 3550 with 4 cores - 2x4 Go of RAM I installed a Centos 6x64 VM with all updates + ovirt guest agent. I tried to augment the memory from 1024 to 1536 (+512Mo) it didn't work I had to shutdown the VM for the change to take effect. Hot plug memory does it have something to do with the underneath hardware? or does it depend on the guest OS? or something else? Regards.