1 [Allen Rueter][AR] [points out][ref] that one way to kill a defunct
2 process is to kill its parent or child:
4 # ps -ef | grep '<defunct>\|PPID'
5 UID PID PPID C STIME TTY TIME CMD
6 zzz 13868 1 0 0:00 <defunct>
7 # ps -ef | grep '13868\|PPID'
8 UID PID PPID C STIME TTY TIME CMD
9 zzz 13868 1 0 0:00 <defunct>1
10 zzz 16596 13868 0 0:00 a.out
13 [AR]: http://www.cts.wustl.edu/~allen/
14 [ref]: http://www.cts.wustl.edu/~allen/kill-defunct-process.html