---
id: pr-vllm-39315
repo: vllm-project/vllm
pr: 39315
title: '[Bugfix] FlashInfer MXINT4 MoE crashes, missing do_finalize'
author: benchislett
date: '2026-04-09'
url: https://github.com/vllm-project/vllm/pull/39315
source_category: upstream-code
architectures:
- sm100
tags:
- moe
- quantization
techniques: []
hardware_features: []
kernel_types:
- moe
- quantization
languages:
- python
captured_at: '2026-04-17'
status: merged
merge_sha: 8332078cfdbd5e44e527893b695e79052d008172
inclusion_reason: kernel file changes
changed_paths:
- tests/kernels/moe/test_marlin_vs_trtllm_mxint4.py
- vllm/model_executor/layers/quantization/utils/flashinfer_mxint4_moe.py
head_ref_oid: 2f66debff3cc130e4106f1a523eea7ed90b920d7
artifact_dir: evidence/pull-bundles/vllm/gh-39315
---
# [Bugfix] FlashInfer MXINT4 MoE crashes, missing do_finalize

- Repository: `vllm-project/vllm`
- PR: [39315](https://github.com/vllm-project/vllm/pull/39315)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `tests/kernels/moe/test_marlin_vs_trtllm_mxint4.py`
- `vllm/model_executor/layers/quantization/utils/flashinfer_mxint4_moe.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-39315`
