After creating fresh LXC based on Debian Jessie, on a Ubuntu 14.04, systemd-journal eats all CPU available.
lxc-create -n jessie -t debian
As mentioned in Debian wiki:
Add to container's config /var/lib/lxc/{container}/config
:
lxc.autodev = 1
lxc.kmsg = 0
and comment out /var/lib/lxc/{container}/rootfs/lib/systemd/system/getty@.service
ConditionPathExists=/dev/tty0
Then restart container. Same problem with Fedora host mentioned here