webcamd quirkyness

[Hans Petter Selasky]

> ^C
> 
> # ./webcamd -d 3.3 -i 0 -m uvc_driver.trace=0xffffffff -B
> .. same trace as above, until:
> lirc_dev: IR Remote Control driver registered, major 13
> Attached ugen3.3[0] to cuse unit -1
> #

Try to compile webcamd without debugging. Then run it from gdb. Press CTRL+C 
to break back into gdb when it hangs.

Dump backtrace from all threads.

--HPS