Init process may remain after sending SIGTERM for some reason. For example, if original init program is used, it is definitely not killed by SIGTERM. ---  src/lxc/lxc_controller.c |    4 ++++  1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/src/lxc/lxc_controller.c b/src/lxc/lxc_controller.c index 44bcc82..d8b7bc7 100644 --- a/src/lxc/lxc_controller.c +++ b/src/lxc/lxc_controller.c @@ -663,7 +663,11 @@ cleanup:         close(containerPty);     if (container > 1) { +        int status;         kill(container, SIGTERM); +        if (!(waitpid(container, &status, WNOHANG) == 0 && +            WIFEXITED(status))) +            kill(container, SIGKILL);         waitpid(container, NULL, 0);     }     return rc; -- 1.6.6.1