I just had it happen again here too. I am back on v6.12-RC5 when it happened. My '/run' had filled up all 32MB. Turns out my plex container had filled up the logs with a bunch of stuff related to the Nvidia Drivers. I have now set the extra parameter of '--no-healthcheck' and that seems to have slowed the increase of the logs down.   Edit: I don't think it is directly caused by the Nvida Runtime/Drivers, but more like the healthcheck lines went from "small" to "huge".