Hi all, noob here.
When running ansible-playbook against LXC containers, I have to set "gather_facts: False". Otherwise it always gets stuck there. The reason is because accessing /proc/cpuinfo inside lxc containers always results in:
"cannot access /proc/cpuinfo: Transport endpoint is not connected"
I don't know whether this is a bug in LXC or Ansible, but I thought I should leave this here for those googling around.