Processes in brackets [ ]

[KayZee]

When I run ps ax to inspect running services
I see several of the processes enclosed in
backets [ ] rather then displaying the command
line. For example,

pid ? SL 0:00 [ntpd]
pid ? S 0:00 [apache2]
pid ? S 0:00 [CGServer] this is my mailsever

But not all processes, cron and sshd look as
I would have expected.

pid ? S 0:00 /usr/sbin/sshd
pid ? S 0:00 /usr/sbin/cron

Did I miss configurng something? Or is this
normal with Gentoo?
Using 2.4.20-gentoo-r7 kernel.

Thank you.

[alexod]

That's normal.
Processes can change their commandline displayed in /proc and ps.