MIT-SHM Error

[SikandAlex]

Current Behavior

Running app.py with -g (--gui) flag causes MIT-SHM error.

Even after (xhost local:root) command

This is a separate error that I have experienced with the image than the one mentioned here. #104 (comment)

I previously had thought this issue was resolved by (xhost local:root) or (xhost +) but both of those failed for me.

It looks like this is an ongoing issue here but I can't find a way to resolve it.
jessfraz/dockerfiles#359

Your Environment

• Desktop
  • Operating System and version: Ubuntu 20.10
  • NVIDIA Driver version: 465.19.01
  • Used the docker image? Yes

Resolution

No matter what I did, following @jessfraz instructions for resolving errors related to containerized GUI applications as recommended by @GeekAlexis , I could not get the app to run. This is strange because I was previously running the application several weeks ago and don't remember needing to make this change. I wonder if I changed drivers or something in between?

If it did run without the -g option, but with an -o output file option, the resulting video was blank (black screen) despite correctly detecting the objects in the video.

I had to resolve this issue by enabling --ipc=host which isn't the proper way to do this since it breaks isolation of the dockerized application but as soon as I did this, my issues were resolved.

I will continue trying to get FastMOT working on my machine. I wonder if this is a driver, GPU, or OS error? I can't understand why it doesn't have permission. Is there a library I should reinstall?

[GeekAlexis]

This is a known issue using X11 inside docker: https://stackoverflow.com/questions/38907708/docker-ipc-host-and-security

—ipc=host seems to be the easiest workaround despite the security risk.