Why My Ollama + LangChain FastAPI service on Ubuntu 22.04 keeps crashing with “CUDA out of memory” after the latest vLLM 0.3.0 upgrade – step‑by‑step fix for GPU+Docker misconfiguration.
It’s 2 AM. Your production AI service is down. Again. The logs scream “CUDA out of memory,” but your GPU has 24GB and your model is only 7B parameters. You upgraded vLLM to 0.3.0 last week, spun up your Docker containers on Ubuntu 22.04, and everything worked in development. Now your FastAPI server is crashing … Read more