small problem with udev in core/core64

[nick65go]

Hi, please could someone tell me why there are 3 parallel running instance of /sbin/udev-demon (seen with top) and who created additional 60 devices like /dev/tty68? With core-remaster.tcz I can see that initial there are only 8 up to /dev/tty8.
Please advise me what to modify for having just one instance udev (if ever need) and max inital 8 tty.
(with out resorting to kill the process and to manualy delete the devices, as user root). This udev is restless, as I can see in other posting.

These happens in core, but also in core64. For reproducible testing here are my settings with virgin core and tczs
/sda1/boot/grub/menu.lst
root (hd0,2)
kernel /boot3813/vmlinuz64 pcie_aspm=force kmap=azerty/fr-pc tce=sda3 blacklist=pcspkr
initrd /boot3813/core64-53.gz

/sda3/tce/onboot.lst
Xprogs.tcz
flwm.tcz
wbar.tcz
aterm.tcz
fluff.tcz
Xorg-7.7-3d.tcz
xf86-video-ati.tcz
xf86-input-synaptics.tcz
kmaps.tcz
firmware-radeon.tcz

Many thanks!

Edit: not solved yet , but marked here for fast search history: http://www.tldp.org/HOWTO/Keyboard-and-Console-HOWTO-7.html
Since kernel version 1.1.54, there are between 1 and 63 virtual consoles 
For older kernels, change the line  "#define NR_CONSOLES     8" in include/linux/tty.h
or create new tty devices like: for i in 9 10 11 12; do mknod /dev/tty$i c 4 $i; done