Cause of hang when exiting docker container?

Question

Docker

docker -v
Docker version 1.12.0, build 8eab29e

Ubuntu 14.04.4 LTS \n \l
I connect to the container console with the commands:

docker exec -t -i {someId} /bin/bash
либо
docker attach {someId}

And at this stage, it hangs either at the entrance or at the exit from the console using Ctrl-D. I don't get to the command line. You have to kill the ssh session. Docker restart helps, but also not for long and not always.
The containers themselves work as if nothing had happened.
What to do, where to look?
There was version 1.6 before that - there were no such problems, but working with networks was very sad.
PS Upgrading to Docker version 1.12.1-rc2, build 236317f, OS to Ubuntu 16.04.1 LTS did not help

Answer 1

Нашел похожую проблему: stackoverflow.com/questions/31350335/docker-not-re...
Использование Ctlr-P + Ctrl-Q помогло