fbsd-7.1 + aircrack-ng + wpi == systemcrash

[Marco]

hello list,

i run FreeBSD  7.1-STABLE FreeBSD 7.1-STABLE with the latest version of
aircrack-ng 1.0 rc1. After playing a little bit around i tried to inject
packets with the "Intel 3945ABG"
card. This resulted, always short after execution of packet injection in
a systemcrash. The command was the following:

aireplay -0 1 -a 00:01:02:03:04:05 -c 00:05:04:03:02:01 wpi0

I also tried the aireplay "test" command, which shall testify if the
used card is capable of packet injection, this resulted in the same
behavior complete system crash.

aireplay-ng --test -e teddy -a 00:14:6C:7E:40:80 wpi0

After execution the system freezes completly, by 10seconds, and
restarts. Does anybody came across this problems and has maybe a solution?

Best regards,
 marco