---
id: pr-vllm-28755
repo: vllm-project/vllm
pr: 28755
title: '[PERF] Remove TRTLLM Gen attn kernel limitation `max_seq_len <=131072`'
author: vadiklyutiy
date: '2025-11-15'
url: https://github.com/vllm-project/vllm/pull/28755
source_category: upstream-code
architectures:
- sm100
tags: []
techniques: []
hardware_features: []
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: 173b356abff3e2e547fc44c60361f3b0adc41aaf
inclusion_reason: defer
changed_paths:
- vllm/config/vllm.py
- vllm/utils/flashinfer.py
artifact_dir: evidence/pull-bundles/vllm/gh-28755
head_ref_oid: 35a8483908d07694bdbc5d235c0298f81761045c
---
# [PERF] Remove TRTLLM Gen attn kernel limitation `max_seq_len <=131072`

- Repository: `vllm-project/vllm`
- PR: [28755](https://github.com/vllm-project/vllm/pull/28755)
- Decision: `defer`
- Reason: defer

## Changed Paths

- `vllm/config/vllm.py`
- `vllm/utils/flashinfer.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-28755`
