not the first time I noticed that..
since 7.250 install and severall reboot each time I've noticed that confd.plx process became Zombie process !
asg:/root/bin # ps ax|grep confd
2692 ? Ss 0:00 confd [master]
2742 ? S 0:00 confd [rpc]
6900 ? Z 0:00 [confd.plx]
don't know if that's normal ??