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
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