---
id: pr-vllm-39752
repo: vllm-project/vllm
pr: 39752
title: add warning when FP8 KV cache misses prefill query quantization
author: qiching
date: '2026-04-14'
url: https://github.com/vllm-project/vllm/pull/39752
source_category: upstream-code
architectures:
- sm100
tags:
- attention
- fp8
- mla
- prefill
- quantization
techniques: []
hardware_features:
- fp8
kernel_types:
- attention
- mla
- prefill
- quantization
languages:
- python
captured_at: '2026-04-17'
status: merged
merge_sha: dc8df110bc8a5c80dbb8f1fef02e98deb8aa2b09
inclusion_reason: kernel file changes
changed_paths:
- vllm/model_executor/layers/attention/mla_attention.py
artifact_dir: evidence/pull-bundles/vllm/gh-39752
head_ref_oid: cc82b8e23118743ed8eb75b69f39331d00c9c8f4
---
# add warning when FP8 KV cache misses prefill query quantization

- Repository: `vllm-project/vllm`
- PR: [39752](https://github.com/vllm-project/vllm/pull/39752)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `vllm/model_executor/layers/attention/mla_attention.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-39752`
