linux下的defunct process

1. 什么是defunct process，就是已经死了的process

2. 如何kill掉该process呢，有两种方法：重启机器； 将该process的父亲杀掉

怎样找到defunct process的父亲呢，ps -ef | grep defunct_process_pid

refs:

http://kenno.wordpress.com/2007/04/04/how-to-kill-defunct-process/