---
id: pr-vllm-30974
repo: vllm-project/vllm
pr: 30974
title: '[Bugfix] Fix incorrect tiles creation for mm prefix triton attention'
author: Isotr0py
date: '2025-12-19'
url: https://github.com/vllm-project/vllm/pull/30974
source_category: upstream-code
architectures:
- sm100
tags:
- attention
techniques: []
hardware_features: []
kernel_types:
- attention
languages:
- triton
captured_at: '2026-04-27'
status: merged
merge_sha: ac1c934276167085dc7d9e5adb8c2089de0460f9
inclusion_reason: kernel file changes
changed_paths:
- vllm/attention/ops/triton_unified_attention.py
head_ref_oid: aab6b1780c100cba88f76881728e244cd9c9634c
artifact_dir: evidence/pull-bundles/vllm/gh-30974
---
# [Bugfix] Fix incorrect tiles creation for mm prefix triton attention

- Repository: `vllm-project/vllm`
- PR: [30974](https://github.com/vllm-project/vllm/pull/30974)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `vllm/attention/ops/triton_unified_attention.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-30974`
