kubectl describe pod kube-flannel-ds-v9j5t -n kube-flannel
Normal Pulled 39m (x4 over 40m) kubelet Container image "docker.io/rancher/mirrored-flannelcni-flannel:v0.20.2" already present on machine Normal Created 39m (x4 over 40m) kubelet Created container kube-flannel Warning Failed 39m (x4 over 40m) kubelet Error: failed to create containerd task: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: error during container init: error setting cgroup config for procHooks process: open /sys/fs/cgroup/memory/kubepods.slice/kubepods-burstable.slice/kubepods-burstable-podfe68f366_ef34_4535_9366_51041b92f3bf.slice/cri-containerd-kube-flannel.scope/memory.memsw.limit_in_bytes: no such file or directory: unknown Warning BackOff 40s (x186 over 40m) kubelet Back-off restarting failed container