This revision is from docker_1.5 branch, because we don't want to introduce user namespace in docker 1.5, but fix for --pid=host is needed. Fixes #10303 Signed-off-by: Alexander Morozov <lk4d4@docker.com> Upstream-commit: fd2d45d7d465fe02f159f21389b92164dbb433d3 Component: engine