---
id: pr-sglang-7148
repo: sgl-project/sglang
pr: 7148
title: Fix FP8 KV Cache Support in FA3 Backend
author: guoyuhong
date: '2025-06-25'
url: https://github.com/sgl-project/sglang/pull/7148
source_category: upstream-code
architectures:
- sm100
tags: []
techniques: []
hardware_features: []
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: a1c1ebe9357418ae8cf8ffdf66e3eaec066170e8
inclusion_reason: defer
changed_paths:
- python/sglang/srt/layers/attention/flashattention_backend.py
- python/sglang/srt/model_executor/model_runner.py
- test/srt/test_mla_deepseek_v3.py
artifact_dir: evidence/pull-bundles/sglang/gh-7148
head_ref_oid: 37f9be4eb98f77f33b6e54a47047eb12e936a912
---
# Fix FP8 KV Cache Support in FA3 Backend

- Repository: `sgl-project/sglang`
- PR: [7148](https://github.com/sgl-project/sglang/pull/7148)
- Decision: `defer`
- Reason: defer

## Changed Paths

- `python/sglang/srt/layers/attention/flashattention_backend.py`
- `python/sglang/srt/model_executor/model_runner.py`
- `test/srt/test_mla_deepseek_v3.py`

## Evidence Bundle

`evidence/pull-bundles/sglang/gh-7148`
