# Limitation of the Docker functions

Some Docker functions are partially limited.

Note the following exceptions when working with Docker functions:

Name | Value | Description | Exception
--- | --- | --- | ---
--volume , v | - | Bind mount a volume | Bind mounts are permitted to the following paths on the host machine: /var/run/docker.sock /run/media subfolders of /run/media
--pid | --pid=host | PID namespace to use | Container with the value --pid=host cannot be started.
--ipc | --ipc=host | IPC mode to use | Container with the value --ipc=host cannot be started.
--device | - | Add a host device to a container | The following host devices cannot be mapped into a container manually: /dev/mem /dev/sd* /dev/dm* /dev/mapper /dev/mmcblk* /dev/ram* /dev/rtc* /dev/gpio* /dev/iio* /dev/watchdog*
--privileged | - | Give extended privileges to this container | Host devices are not mapped into a container by default. You can map host devices into a container manually.