From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 5.5; Windows 98)

Description of problem:
Running '/sbin/service named start' spawns additional copies of named 
every time the command is run. The new copies recognize (and log 
to /var/messages) that the port is in use, but do not exit - this can fill 
up the machine with processes (and threads on SMP) quickly.

How reproducible:
Always

Steps to Reproduce:
1. run '/sbin/service named start'
2.
3.
	

Actual Results:  Spawns additional copies of named each time the command 
is run (one thread per CPU and per port on which named is listening).

Expected Results:  Should recognize that named is already running and not 
spawn additional programs.

Additional info:

[root@copper RPMS]# rpm -q bind caching-nameserver
bind-9.1.0-10
caching-nameserver-7.1-3

Standard 7.1 system. I marked the bug as normal priority even though it's 
pretty easy to bring down a machine with linuxconf (because it keeps 
starting named).