---
id: pr-vllm-16693
repo: vllm-project/vllm
pr: 16693
title: '[Bugfix][Kernel] fix potential cuda graph broken for merge_attn_states kernel'
author: DefTruth
date: '2025-04-16'
url: https://github.com/vllm-project/vllm/pull/16693
source_category: upstream-code
architectures:
- sm100
tags: []
techniques: []
hardware_features: []
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: e82ee40de3362afda8671e6f5daece0eaa7f0d51
inclusion_reason: defer
changed_paths:
- csrc/attention/merge_attn_states.cu
artifact_dir: evidence/pull-bundles/vllm/gh-16693
head_ref_oid: 0150b0ba25c7ff3974d0e8c203f39bf5442941ff
---
# [Bugfix][Kernel] fix potential cuda graph broken for merge_attn_states kernel

- Repository: `vllm-project/vllm`
- PR: [16693](https://github.com/vllm-project/vllm/pull/16693)
- Decision: `defer`
- Reason: defer

## Changed Paths

- `csrc/attention/merge_attn_states.cu`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-16693`
