---
id: pr-vllm-16854
repo: vllm-project/vllm
pr: 16854
title: '[Bugfix] Fix moe weight losing all extra attrs after `process_weights_after_loading`.'
author: charlifu
date: '2025-04-28'
url: https://github.com/vllm-project/vllm/pull/16854
source_category: upstream-code
architectures:
- sm100
tags:
- kernel-fusion
- moe
- quantization
techniques:
- kernel-fusion
hardware_features: []
kernel_types:
- moe
- quantization
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: ed2462030f2ccc84be13d8bb2c7476c84930fb71
inclusion_reason: kernel file changes
changed_paths:
- vllm/model_executor/layers/fused_moe/layer.py
- vllm/model_executor/layers/quantization/utils/w8a8_utils.py
head_ref_oid: 8597cc12e94e8d751c61df97336f63a72af9c55e
artifact_dir: evidence/pull-bundles/vllm/gh-16854
---
# [Bugfix] Fix moe weight losing all extra attrs after `process_weights_after_loading`.

- Repository: `vllm-project/vllm`
- PR: [16854](https://github.com/vllm-project/vllm/pull/16854)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `vllm/model_executor/layers/fused_moe/layer.py`
- `vllm/model_executor/layers/quantization/utils/w8a8_utils.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-16854`
