---
title: SR-IOV特性创建虚拟机超时失败，neutron-openvswitch服务无法启动，neutron-dhcp报错
description: "报错日志：Failed reporting state!: oslo_messaging.exceptions.MessagingTimeout: Timed out waiting for a reply to message ID。"
url: https://www.hikunpeng.com/document/detail/zh/kunpengcctrustzone/tee/cVMcont/kunpengtee_16_0074.html
sourcePath: /source/zh/kunpengcctrustzone/tee/cVMcont/kunpengtee_16_0074.html
indexId: 9335a987dbe1de14405e0edca1717c80969849d881d31b8bd8d180ddbfebc4f065
---
# SR-IOV特性创建虚拟机超时失败，neutron-openvswitch服务无法启动，neutron-dhcp报错

#### 问题现象

报错日志：Failed reporting state!: oslo_messaging.exceptions.MessagingTimeout: Timed out waiting for a reply to message ID。


#### 根本原因分析

Open vSwitch配置了dpdk参数，未启动DPDK服务时无法启动openvswitch。


#### 解决方案

1. 删除Open vSwitch的dpdk参数。

```
ovs-vsctl --no-wait remove Open_vSwitch . other_config dpdk-init
ovs-vsctl --no-wait remove Open_vSwitch . other_config dpdk-socket-mem
ovs-vsctl --no-wait remove Open_vSwitch . other_config dpdk-lcore-mask
ovs-vsctl --no-wait remove Open_vSwitch . other_config pmd-cpu-mask
ovs-vsctl --no-wait remove Open_vSwitch . other_config dpdk-pmd-driver
ovs-vsctl --no-wait remove Open_vSwitch . other_config vhost-iommu-support
```


2. 检查Open vSwitch有无dpdk参数，返回false说明删除dpdk参数成功。

```
ovs-vsctl get Open_vSwitch . dpdk_initialized
```


3. 重新启动服务。

```
systemctl restart openvswitch neutron-openvswitch
```