Comment 3 for bug 1070879

I did a test on another machine that has a more vanilla configuration with eth0 configured through Network Manager. The only thing in /etc/network/interfaces was the loopback stuff that is installed there by default. I issued "sudo service networking restart" and the same thing happened: Unity essentially died and I had to switch to a virtual terminal to restart the computer. This result demonstrates that it is the networking script (or some hook program called by it) that is the problem, and not any particular network configuration.