User-Agent:       Mozilla/5.0 (X11; Linux x86_64; rv:32.0) Gecko/20100101
Firefox/32.0
Build Identifier: 

During the 3.17 RCs I started experiencing plenty of problems with WiFi. 

- WiFi would stop working (show as not available)
- Attempts to turn it off and on again in the plasmoid often would result in
system freeze.
- Rebooting solved it

While this hadn't happen in early 3.16's, the latest stable had the same
problems. And today after reboot, no WiFi was available with either 3.16.3,
3.17rc7, nor 3.17.0. It took booting with 3.15.8 for it to work. 

I'm attaching a dmesg log, taken from 3.17rc7  

Reproducible: Always