I am kickstarting an FC5 system, and when it is all done and reboots, /bin/nash
is still running:

$ ps ax | grep nash
  305 ?        Ss     0:00 /bin/nash /init

Looking in /proc/305/status, it lists "nash-hotplug" as the name.

If I attach to it with strace, it is in select, waiting on fd 6.  I'm not sure
what fd 6 is though; it appears to be a socket:

# ls -l /proc/305/fd
total 4
lr-x------ 1 root root 64 May 16 13:24 0 -> pipe:[723]
lrwx------ 1 root root 64 May 16 13:24 1 -> /zero
lrwx------ 1 root root 64 May 16 13:24 2 -> /zero
lrwx------ 1 root root 64 May 16 13:24 6 -> socket:[724]

However, there is no entry for 724 in /proc/net/* (maybe it is a stale netlink
socket?).

If I HUP the process, it does go away (with no apparent ill effects).