>From looking at wl_linux.c, it seems to be loading the driver for any
Broadcom device containing the PCI device ID 0x43##. This is incorrect.

In my opinion, this driver should not be installed, or at least not be
loaded, by default in Ubuntu.

If someone would like, they can look at the existing source code and the
README file included with the wl driver and can create a patch to do
further validation of the PCI ID. Broadcom is unresponsive to me on
this.

At this point, the workaround is as follows:
1. During installation, run "sudo killall -9 modprobe" when installation seems 
to freeze up to resume it. A hard reboot may be required after installation 
completes.
2. After booting into Ubuntu, add "blacklist wl" to the end of 
"/etc/modprobe.d/blacklist.conf". Again, a hard reboot may be required.
3. After this everything should be working as normal. If you need to load the 
b43 module by default, you may need to add "b43" to  "/etc/modules".

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https://bugs.launchpad.net/bugs/1313221

Title:
  modprobe wl crashes with broadcom 4306

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