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kernel:unregister_netdevice: waiting for usb0 to become free. Usage count = 1

lcc0556

1. 故障现象（SYMPTOMS）

操作系统：Oracle Linux Server release 6.5

登录操作系统后一直报如下错误：

Message from syslogd@etdg at Dec  4 09:19:03 ...
 kernel:unregister_netdevice: waiting for usb0 to become free. Usage count = 1

Message from syslogd@etdg at Dec  4 09:19:13 ...
 kernel:unregister_netdevice: waiting for usb0 to become free. Usage count = 1

Message from syslogd@etdg at Dec  4 09:19:23 ...
 kernel:unregister_netdevice: waiting for usb0 to become free. Usage count = 1

2. 变化（CHANGES）

3. 故障原因（CAUSE）

linux内核BUG

4. 解决方案（SOLUTION）

  • 首先关闭rsyslog服务
service rsyslog stop
  • 修改rsyslog配置
vim /etc/rsyslog.conf
# Everybody gets emergency messages
#*.emerg                                                 *           <-----注释此行
  • 启动rsyslog
service rsyslog start

5. 总结（SUMMARY）

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