Hi, Thanks.
I fixed it - there is already a patchseries in 4.0 to fix this. It will be backported in 3.18.10 or 3.18.11. Stefan Am 23.03.2015 um 12:54 schrieb Stefan Hajnoczi: > On Sun, Mar 15, 2015 at 09:59:25AM +0100, Stefan Priebe wrote: >> after upgrading the host kernel from 3.12 to 3.18 live migration fails with >> the following qemu output (guest running on a host with 3.12 => host with >> 3.18): >> >> kvm: Features 0x30afffe3 unsupported. Allowed features: 0x79bfbbe7 >> qemu: warning: error while loading state for instance 0x0 of device >> '0000:00:12.0/virtio-net' >> kvm: load of migration failed: Operation not permitted >> >> But i can't > > Hi Stefan, > I haven't checked the exact feature bits but it might be the UFO feature > problem. The tun driver was changed to drop a feature, this broke live > migration. > > Take a look at > https://lists.linuxfoundation.org/pipermail/virtualization/2015-February/029217.html > > Stefan >