1.查找并干掉僵尸进程:

:~# ps -A -o stat,ppid,pid,cmd | grep -e '^[Zz]'
Z     1596  1632 [sh] <defunct>
Z     2666  3581 [dhclient] <defunct>
:~# kill -9 2666
:~# kill -9 1596
:~# ps -A -o stat,ppid,pid,cmd | grep -e '^[Zz]'
首先要去干掉僵尸进程,如果干掉失败,则干掉父进程。