---
id: pr-flashinfer-2062
repo: flashinfer-ai/flashinfer
pr: 2062
title: 'Fix: several bugs/issues with trtllm-gen attention kernels. '
author: PerkzZheng
date: '2025-11-09'
url: https://github.com/flashinfer-ai/flashinfer/pull/2062
source_category: upstream-code
architectures:
- sm100
tags:
- attention
- flash-attention
techniques: []
hardware_features: []
kernel_types:
- attention
- flash-attention
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: d56748ffbce99d8cd8db20688267ae254b30cb16
inclusion_reason: kernel file changes
changed_paths:
- flashinfer/artifacts.py
- include/flashinfer/trtllm/fmha/fmhaKernels.cuh
- include/flashinfer/trtllm/fmha/kernelParams.h
head_ref_oid: 5b6e56275d4046b8180a1f61159cba1efff06df1
artifact_dir: evidence/pull-bundles/flashinfer/gh-2062
---
# Fix: several bugs/issues with trtllm-gen attention kernels. 

- Repository: `flashinfer-ai/flashinfer`
- PR: [2062](https://github.com/flashinfer-ai/flashinfer/pull/2062)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `flashinfer/artifacts.py`
- `include/flashinfer/trtllm/fmha/fmhaKernels.cuh`
- `include/flashinfer/trtllm/fmha/kernelParams.h`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-2062`
