usb rtwn not loaded properly at boot

[Johannes Lundberg]

Hi

I have (with 12-ALPHA5)

/boot/loader.conf
rtwn_load="YES"
if_urtw_usb_load="YES"

/etc/rc.conf
wlans_rtwn0="wlan0"
ifconfig_wlan0="WPA DHCP"

but still after boot only lo0 exists and all modules are loaded.

Manually running
ifconfig wlan0 create wlandev rtwn0
sets up the interface correctly.

In my kernel config I have
MODULES_OVERRIDE="....usb rtwn_usb rtwn ...."

I'm pretty sure this has worked before... Any clues?