---
id: pr-flashinfer-718
repo: flashinfer-ai/flashinfer
pr: 718
title: 'bugfix: FusedAddRMSNorm kernels might require more than 48KB shared memory when d is large.'
author: bobboli
date: '2025-01-06'
url: https://github.com/flashinfer-ai/flashinfer/pull/718
source_category: upstream-code
architectures:
- sm100
tags:
- kernel-fusion
techniques:
- kernel-fusion
hardware_features: []
kernel_types: []
languages:
- cuda-cpp
captured_at: '2026-04-17'
status: merged
merge_sha: 9a00cc2ea2d3b79e071a8a05a3e0c2b90e081e01
inclusion_reason: kernel file changes
changed_paths:
- include/flashinfer/norm.cuh
- tests/test_norm.py
head_ref_oid: a4fc1acdce44400c6c6d306e35dd53aa16cfb4b4
artifact_dir: evidence/pull-bundles/flashinfer/gh-718
---
# bugfix: FusedAddRMSNorm kernels might require more than 48KB shared memory when d is large.

- Repository: `flashinfer-ai/flashinfer`
- PR: [718](https://github.com/flashinfer-ai/flashinfer/pull/718)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `include/flashinfer/norm.cuh`
- `tests/test_norm.py`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-718`
