Have you had it getting stuck in endless loops maybe ~10-20% of the invocations? Seems it happens for both the responses and chatcompletion APIs, and no matter what inference parameters I try it happens at least for 1/10 of the requests, I've tried every compatible vLLM version + currently using it from git (#main) yet the issue persists.

Seems to happen with various quantizations too, even the NVFP4 versions and any others, so seems like a deeper issue to me, or hardware incompatible perhaps.