---
id: pr-flashinfer-3007
repo: flashinfer-ai/flashinfer
pr: 3007
title: 'fix: use sym_int64 for strides in rmsnorm CuTe DSL kernels to prevent int32 overflow'
author: bkryu
date: '2026-04-08'
url: https://github.com/flashinfer-ai/flashinfer/pull/3007
source_category: upstream-code
architectures:
- sm100
tags:
- kernel-fusion
techniques:
- kernel-fusion
hardware_features: []
kernel_types: []
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: f0edd77d77b7e5f71cb628ae5c6a27972edcb672
inclusion_reason: kernel file changes
changed_paths:
- flashinfer/norm/kernels/fused_add_rmsnorm.py
- flashinfer/norm/kernels/rmsnorm.py
- tests/utils/test_norm.py
head_ref_oid: 626e2fe09c85b3f380e773179ad45b1b7515931f
artifact_dir: evidence/pull-bundles/flashinfer/gh-3007
---
# fix: use sym_int64 for strides in rmsnorm CuTe DSL kernels to prevent int32 overflow

- Repository: `flashinfer-ai/flashinfer`
- PR: [3007](https://github.com/flashinfer-ai/flashinfer/pull/3007)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `flashinfer/norm/kernels/fused_add_rmsnorm.py`
- `flashinfer/norm/kernels/rmsnorm.py`
- `tests/utils/test_norm.py`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-3007`
