Hi there: We got same error after disable APIC for upstream cloud image: https://cloud.centos.org/centos/7/images/CentOS-7-x86_64-GenericCloud-2111.qcow2 OpenStack version: rocky host kernel: 3.10.0-1160.53.1.el7.x86_64 VM console log: [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Linux version 3.10.0-1160.45.1.el7.x86_64 (