PF + BRIDGE still causes system freezing

[Reko Turja]

Hmm, I wonder if possible culprit is this:

>> Process 12 (intr) thread 0xffffff00022693e0 (100016)
>> exclusive sleep mutex Giant (Giant) r = 1 (0xffffffff80c93dc0) 
>> locked @ /usr/src/sys/dev/usb/usb_transfer.c:3023

Is the usb device used as main harddrive for the system, and have you 
tried other usb device or installation target media like real 
harddrive or livecd?

-Reko