Carla sim "Openpilot unavailable Communication issue between processes"

[Saumya-Shah]

I have ubuntu 18.04 and have run the two given scripts for running openpilot with Carla. I get a warning saying "Grey Panda is deprecated" followed by "Openpilot unavailable Communication issue between processes" when I engage by pressing 1 on the terminal.
Operating system: [e.g. Ubuntu 18.04]

[dorkmo]

theres currently a hack to remove it in controllerd

https://github.com/commaai/openpilot/wiki/CARLA#communication-issue-between-processes

join the discord server and check out channel #openpilot-simulation a few people have had the same issue

[Saumya-Shah]

Did you mean controlsd.py file? I removed the lines corresponding to radar commissue and commissue events in lines 210-214. That doesn't seem to fix it though, can you help? I have joined discord server but don't see more description regarding this over there. Thanks a lot.

[dorkmo]

sorry im not sure, davidtena98 most recently experienced it. They start talking about it here... https://discord.com/channels/469524606043160576/684457101455786017/774270397243326474

[LoganxDev]

#2528

[Saumya-Shah]

Hi, thank you for the reply. Unfortunately, I still have the issue. The way I am running it is as follows:

sudo ./tools/sim/start_carla.sh

Then in other terminal:
sudo ./tools/sim/start_openpilot_docker.sh

And then I change the following inside the docker container:

In bridge.py: I changed hwType from "greyPanda" to "blackPanda" as in #2528 and
I also comment the issue lines in controlsd.py as shown in the screenshot above.

And then I rerun the bridge.py.

Did I miss something?

[LoganxDev]

It sounds like you didn't kill and restart openpilot.

Looking at your screen shot if you go into the right hand terminal window then go to the first tmux window with ` + 0, then ctrl + c to kill openpilot. Make your edits then run ./launch_openpilot.sh, finally you can swap back to the tmux window you started in with ` + 1 and rerun bridge.py.

These steps are performing tmux_script.sh which is what start_openpilot_docker.sh is doing inside the docker container.

[gucasbrg]

There are three interesting tips to improve

• The greypanda written in bridge.py caused thermald started false. Then, as soon as the manager was opened, all services were killed.
• When sim is used, all service alives are also monitored, and then there is even a frontframe, which is nothing. . .
• That is, when onnx is running on the cpu, the fps prediction is very low, and then the prompt is not very friendly

[DanielYEHsieh]

Hi @adeebshihadeh,

thanks for replying.

I did the same change in
https://user-images.githubusercontent.com/22060625/98455550-2e19d300-2140-11eb-9deb-454dfce0791d.png
but it seems not fixed the issue,

and in bridge.py: is already changed from "greyPanda" to "blackPanda"
but it still runs into the same issue.

kill and restart openpilot did not help too.

Is the fix in discord?

Thanks!