I have a dual boot OS/X and Feisty on my Macbook C2D. Everything was working perfectly up until the point where I needed to enable wireless networking in Linux (makes it easier to follow lectures in class, etc.)

So I read up on the latest madwifi drivers, see that they finally support the new Atheros chips in the C2D, I download the latest snapshot, install it, and everything seems to be running smoothly. I sudo modprobe ath_pci after installing, and the entire system freezes. I wait about 10 minutes, and then hard reboot the computer. But now, Ubuntu won't even boot. It gets about 1/6 of the way through the status bar, and then stops. This has happened twice already, and I've had to reinstall Ubuntu both times.

What could be causing this freeze?

Well, the freezing during bootup is most likely the madwifi driver trying to be modprobed while starting. If it happens again you can try booting in Failsafe mode. As for the madwifi situation itself, you might try a different a previous stable version instead of svn.

Therein lies the problem in itself.

I have one of the new C2D MacBooks, whose Atheros support only came out in one of the latest svns, and I don't know where it started to be included in the trunk so I can find an appropriate one.

Anyone have any idea? This is the 4th time I've reinstalled in the last 2 days, and I'm really getting sick of this. Every tutorial says the same thing, and it doesn't work.