For me it's enough to boot an instance on an affected lgw01 compute node, install qemu-system-x86, download a cloud image and run "/usr/bin/qemu-system-x86_64 -smp 1 -net none -m 512M -nographic -drive format=raw,cache=unsafe,file=zesty-server-cloudimg-amd64.img -machine accel=kvm -enable-kvm -cpu host"
For me it's enough to boot an instance on an affected lgw01 compute node, install qemu-system-x86, download a cloud image and run "/usr/bin/ qemu-system- x86_64 -smp 1 -net none -m 512M -nographic -drive format= raw,cache= unsafe, file=zesty- server- cloudimg- amd64.img -machine accel=kvm -enable-kvm -cpu host"