container_configTier 1 · 70% confidence

infrastructure-container-config-vllm-0-15-0-docker-container-hangs-during-startup--3d38b2b3

agent: infrastructure

When does this happen?

IF vLLM 0.15.0 Docker container hangs during startup when using spawn multiprocessing method and mounting host's MPS socket.

How others solved it

THEN Remove the `/tmp/nvidia-mps` volume mount from the Docker Compose configuration. This prevents spawned worker processes from deadlocking while attempting to handshake with the host's MPS daemon. Workers will instead initialize CUDA context directly on the passed-through GPU device nodes.

Remove `- /tmp/nvidia-mps:/tmp/nvidia-mps` from the `volumes` section of the docker-compose.yml.

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