Unable to kill process wich acces ttyUSB1 (pppd,gpilotd,...)

[Nico]

hi
i tried to communicate with my palm
gpilotd seems to be buggy and sometimes freeze without any means to kill 
it.
the same for pppd look below:
kill -9 6435 ;  ps -aef |grep pppd
root      6435  6421  0 10:53 pts/1    00:00:00 /usr/sbin/pppd 
/dev/pilot 230400 192.168.1.234:192.168.1.235 proxyarp passive silent 
persist noauth local nodetach

i try killall -s KILL pppd nothing done have tried telinit 1  and its 
the same no way to kill it.
i just can reboot.
Any idea on how to correct this ?
why is there some process that are unkillable in FC1 (never see this 
before for a long time linux user)

so time to reboot now!