On the first start of an lxc-container with centos7 it shows all things, memory, cpu .... but on an second start pve show nothing. Only if the whole server reboot this does work again.
Code:
proxmox-ve: 4.4-82 (running kernel: 4.4.40-1-pve)
pve-manager: 4.4-12 (running version: 4.4-12/e71b7a74)
pve-kernel-4.4.35-1-pve: 4.4.35-77
pve-kernel-4.4.35-2-pve: 4.4.35-79
pve-kernel-4.4.24-1-pve: 4.4.24-72
pve-kernel-4.4.40-1-pve: 4.4.40-82
lvm2: 2.02.116-pve3
corosync-pve: 2.4.2-1
libqb0: 1.0-1
pve-cluster: 4.0-48
qemu-server: 4.0-109
pve-firmware: 1.1-10
libpve-common-perl: 4.0-92
libpve-access-control: 4.0-23
libpve-storage-perl: 4.0-76
pve-libspice-server1: 0.12.8-2
vncterm: 1.3-1
pve-docs: 4.4-3
pve-qemu-kvm: 2.7.1-4
pve-container: 1.0-94
pve-firewall: 2.0-33
pve-ha-manager: 1.0-40
ksm-control-daemon: 1.2-1
glusterfs-client: 3.5.2-2+deb8u3
lxc-pve: 2.0.7-3
lxcfs: 2.0.6-pve1
criu: 1.6.0-1
novnc-pve: 0.5-8
smartmontools: 6.5+svn4324-1~pve80
zfsutils: 0.6.5.9-pve15~bpo80