b8f84bca6450b9853a065ec5b902f9f769c5200d
Root cause: patch_ops.sh deploys to VLLM_ROOT (found by importlib, typically
/usr/local/lib/python3.10/site-packages/vllm/) but runtime PYTHONPATH loads
/usr/local/corex/lib/python3/dist-packages/vllm/ first. The base image's
paged_attn.py calls context_attention_fwd (Triton kernel) which is undefined
on BI-V100 → NameError → AsyncEngineDeadError → all requests 503.
Fix: discover VLLM2 path and mirror ALL patched files (paged_attn.py,
qwen3_5.py, serving layer, corex .so, block overrides) to both installs.
Same pattern as Sub 520's working patch_ops.sh (db8e677b line 124-133).
project_6
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