---
id: pr-flashinfer-2535
repo: flashinfer-ai/flashinfer
pr: 2535
title: Add sm90 guard to fence.acquire
author: jhalabi-nv
date: '2026-02-12'
url: https://github.com/flashinfer-ai/flashinfer/pull/2535
source_category: upstream-code
architectures:
- sm100
tags: []
techniques: []
hardware_features: []
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: 579435f982856a7be744793ddcf1a6d12b31c46b
inclusion_reason: defer
changed_paths:
- csrc/nv_internal/tensorrt_llm/kernels/communicationKernels/moeAlltoAllKernels.cu
artifact_dir: evidence/pull-bundles/flashinfer/gh-2535
head_ref_oid: 9ff16e8a3d4c77e50c2b82d9eeae901930a5016e
---
# Add sm90 guard to fence.acquire

- Repository: `flashinfer-ai/flashinfer`
- PR: [2535](https://github.com/flashinfer-ai/flashinfer/pull/2535)
- Decision: `defer`
- Reason: defer

## Changed Paths

- `csrc/nv_internal/tensorrt_llm/kernels/communicationKernels/moeAlltoAllKernels.cu`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-2535`
