---
id: pr-sglang-21649
repo: sgl-project/sglang
pr: 21649
title: 'fix: TRT-LLM MHA CUDA illegal address with EAGLE v2 + DP attention'
author: Kangyan-Zhou
date: '2026-04-05'
url: https://github.com/sgl-project/sglang/pull/21649
source_category: upstream-code
architectures:
- sm100
tags:
- attention
techniques: []
hardware_features: []
kernel_types:
- attention
languages:
- cuda-cpp
- python
captured_at: '2026-04-17'
status: merged
merge_sha: 5dd2c243eb52dfd04f27b998e2595fe0c66437b1
inclusion_reason: kernel file changes
changed_paths:
- python/sglang/srt/layers/attention/trtllm_mha_backend.py
head_ref_oid: e986558c9c09ce39d5c2d23ff3db46b362813445
artifact_dir: evidence/pull-bundles/sglang/gh-21649
---
# fix: TRT-LLM MHA CUDA illegal address with EAGLE v2 + DP attention

- Repository: `sgl-project/sglang`
- PR: [21649](https://github.com/sgl-project/sglang/pull/21649)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `python/sglang/srt/layers/attention/trtllm_mha_backend.py`

## Evidence Bundle

`evidence/pull-bundles/sglang/gh-21649`
