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Trouble with vLLM serve

3 posts from 3 people3d activeFading, +0 this week

Posts per day

Posts per day3 posts, Sep 9 to Nov 9

The posts behind it

GitHub issuesvllm-project/vllm · alex7092Nov 2

[Doc]: Docs use CLI flag names that `vllm serve` does not register

### 📚 The doc issue Several pages document `vllm serve` options with the underscore spelling (e.g. `--hf_overrides`), but `vllm serve` only registers the dash-separated spelling (`--hf-overrides`). argparse's prefix matching does not bridge the gap, because `_` and `-` are...

GitHub issuesvllm-project/vllm · errmakovOct 2

[Bug]: `vllm bench sweep serve --resume` skips the warmup on the restarted server, and crashes after a run recorded by `--continue-on-error`

### Your current environment Logic bug in the sweep driver: reproduced with a stub in place of the server process, so no GPU or model is needed. ### 🐛 Describe the bug `--warmup-num-prompts` and `--continue-on-error` (#57305) do not compose with `--resume`, which the docs...

GitHub issuesvllm-project/vllm · seanphanSep 9

[Bug]: qwen4_exp (Qwen3.8-Flash-Next) cannot serve DeepSpec DFlash/DSpark drafters: five blockers, patches available

### The problem `Qwen4ExpForConditionalGeneration` (Qwen3.8-Flash-Next) cannot serve a DeepSpec-trained DFlash or DSpark drafter on vLLM. Five independent code paths block it, four of which are small control-flow issues and one of which is architectural. None of them is about...

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Companies and products named

3 posts
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About this problem

Evidence

3 posts from 3 people in 1 place, about 1 a week over 55 days. Mostly on vllm-project/vllm. Tools named alongside: NVIDIA, GitHub.

Frustration Frustration 0 of 3· Seen on GitHub issues

How it was grouped

Posts about vLLM with no known issue, sharing the word "serve". First post Sep 9, 2026, latest Nov 2, 2026. Corroborated: 3 or more posts from 2 or more people or places. Method

Other vLLM problems

Running vLLM locally hits memory and speed limits

21 posts from 20 people on GitHub issues, Reddit.

Trouble with vLLM draft

Top post: "Draft model construction resets data_parallel_index to 0 (load_draft_model / create_draft_parallel_config),", one of 3 posts from 3 people on GitHub issues.

vLLM users keep filing bugs

Top post: "Qwen3.8-flash-next 0% MTP acceptance rate in disaggregated PD serving", one of 34 posts from 31 people on GitHub issues, Reddit.

vLLM upgrades break working setups

17 posts from 17 people on GitHub issues.

vLLM vulnerabilities are hard to triage and patch

9 posts from 9 people on Glyph Ibis.

vLLM runs out of context on real work

5 posts from 5 people on GitHub issues.

vLLM GPU access and drivers are painful

5 posts from 3 people on GitHub issues.

Fine-tuning vLLM is costly and unpredictable

4 posts from 4 people on GitHub issues.

Trouble with vLLM cache

Top post: "AOT compile cache never loads for Qwen3.5 models: Kernel index 1 not found in id_to_kernel", one of 4 posts from 4 people on GitHub issues.

Trouble with vLLM kernel

Top post: "ROCM_AITER_MLA can select an aiter MLA decode kernel that silently returns uncorrelated output (gqa_ratio=16,", one of 3 posts from 3 people on GitHub issues.

Trouble with vLLM size

Top post: "EPLB counts load for the wrong expert when step_interval < window_size", one of 3 posts from 3 people on GitHub issues.

vLLM runs out of memory

3 posts from 3 people on GitHub issues.

History

Momentum went from steady to fading.

Nov 9, 2026

First seen with 3 posts; the top post now: "qwen4_exp (Qwen3.8-Flash-Next) cannot serve DeepSpec DFlash/DSpark drafters: five blockers, patches available".

Nov 7, 2026