On system boot attempt to start WiFi leads to "kernel BUG at include/net/cfg80211.h:2473!" message followed by backtrace. This can be fixed with patch located at http://dev.aur.archlinux.org/packages/broadcom-wl/ (http://sprunge.us/fOBN) Reproducible: Always
*** This bug has been marked as a duplicate of bug 437898 ***