pydevd.py is taking 100% CPU in docker

[musikele]

Environment data

• debugpy version: 1.8.5
• OS and version: host: macOS 14.6.1, Macbook M2. Docker image: python:3.8-slim-bookworm, Docker version: v4.34.2
• Python version (& distribution if applicable, e.g. Anaconda): Python 3.8.20
• Using VS Code or Visual Studio: 1.93.0

Actual behavior

I start my Django docker image with python 3.8 with this command:

python -m debugpy --listen 0.0.0.0:8080 manage.py runserver 0.0.0.0:8888

After starting, these processes take 100% of cpu time:

If you can't read

/usr/local/bin/python /usr/local/lib/python3.8/site-packages/debugpy/_vendored/pydevd/pydevd.py --port 50313 --ppid 1 --client 127.0.0.1 --access-token a8d0020dc0e7cb1780cfec911cb8b8cd5a170796475a13f7d7ca4bfa0368b886 --debug-mode debugpy-dap --preimport /usr/local/lib/python3.8/site-packages;debugpy._vendored.force_pydevd --multiprocess --skip-notify-stdin --json-dap-http --file manage.py runserver 0.0.0.0:8888

Expected behavior

I'd like to debug normally with no process taking 100% of CPUs

Steps to reproduce:

Unfortunately no colleague is getting the same behaviour so I'd like some help to understand if this is my fault or debugpy fault.

I can provide you with logs and everything.

Thanks for the amazing work btw, For some weeks it was working flawlessly, and the issue is happening only on one docker image, not all of them.

[rchiodo]

Is there a reason you're using 3.8? Might work better with 3.11.