ubuntu登录进去的时候老提示"There is 1 zombie process"，但实际没找到相关进程

Question

我经常从ssh登录到我的ubuntu服务器时都会显示

Welcome to Ubuntu 11.04 (GNU/Linux 2.6.38-16-server x86_64)

 * Documentation:  http://www.ubuntu.com/server/doc

  System information as of Wed Oct 17 22:07:28 HKT 2012

  System load:    0.16               Processes:           144
  Usage of /home: 48.8% of 18.33GB   Users logged in:     0
  Memory usage:   1%                 IP address for eth0: 192.168.1.201
  Swap usage:     0%

  => There is 1 zombie process.

  Graph this data and manage this system at https://landscape.canonical.com/

但我用下面的命令

ps aux | grep Z

却没有找到任何STAT为Z的进程，请问这个提示是什么意思？我怎么才能找到这个进程呢？

Answer 1

用

top

看看？
or

ps aux | awk '{ print $8 " " $2 }' | grep -w Z