Hi, I am able to KERNEL PANIC the latest FreeBSD 11.1-RELEASE-p1 with using these two scripts. # cat netdown.sh killall -9 wpa_supplicant killall -9 ppp killall -9 dhclient ifconfig wlan0 destroy ifconfig em0 down /etc/rc.d/netif onerestart # cat netup.sh killall -9 wpa_supplicant killall -9 ppp killall -9 dhclient ifconfig wlan0 destroy ifconfig em0 down /etc/rc.d/netif onerestart ifconfig wlan0 create wlandev iwn0 ifconfig wlan0 ether 00:1e:bd:a5:61:2b ifconfig wlan0 up wpa_supplicant -i wlan0 -c /etc/wpa_supplicant.conf -s -B dhclient wlan0 Sometimes its not that instant and works after several minutes, but when You randomly start each of them, then the panic would occur, for example like that: # netup.sh & # netup.sh & # netdown.sh & # netup.sh & # netdown.sh & # netdown.sh & # netup.sh & # netdown.sh & # netup.sh & # netdown.sh & ... The wireless card is 'Centrino Advanced-N 6205 [Taylor Peak]' in ThinkPad T520. Its probably not 'em' driver related but I left it there because these are the commands that I actually execute. The MAC in the above script is generated (but with first three octets from real OUI). Regards, vermaden
If someone wishes to try with script (network.sh) that generates these commands, its here: https://forums.freebsd.org/threads/62013/ Regards, vermaden
This still exists in 12.1-RC1 ... A candidate for: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=240700