---
id: pr-flashinfer-1865
repo: flashinfer-ai/flashinfer
pr: 1865
title: 'Bugfix: fix o_strides in persistent kernel '
author: Edenzzzz
date: '2025-10-05'
url: https://github.com/flashinfer-ai/flashinfer/pull/1865
source_category: upstream-code
architectures:
- sm100
tags:
- attention
- persistent-kernel
techniques:
- persistent-kernel
hardware_features: []
kernel_types:
- attention
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: 0b1d8a6c5750ad7d6cda96ad7a00275db746a139
inclusion_reason: kernel file changes
changed_paths:
- include/flashinfer/attention/persistent.cuh
- tests/attention/test_batch_attention.py
head_ref_oid: 4281ecac94b89d9b0eb8ba3e31c1927b8afea74d
artifact_dir: evidence/pull-bundles/flashinfer/gh-1865
---
# Bugfix: fix o_strides in persistent kernel 

- Repository: `flashinfer-ai/flashinfer`
- PR: [1865](https://github.com/flashinfer-ai/flashinfer/pull/1865)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `include/flashinfer/attention/persistent.cuh`
- `tests/attention/test_batch_attention.py`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-1865`
