Just a word of warning for VBox users seeing an upgrade to 4.3.10 that just became available: Be sure that all of your VMs are in "powered down" state rather than "saved" before installing the upgrade. I forgot to do so, and when I went to restore one of the saved VMs, the restore process went crazy. It stopped at 0%, then after a fairly long wait re-started itself without stopping the first instance, went to 20%, and froze solid at that point. I had to use the REISUB magic keys to get out of the lockup, and then my eth0 interface disappeared.
Powering down again, completely, and letting the system rest for 10 minutes, brought eth0 back into action, and using the "discard" option on all the "saved" VMs made them usable again, but it was a very stressful hour there...
Powering down again, completely, and letting the system rest for 10 minutes, brought eth0 back into action, and using the "discard" option on all the "saved" VMs made them usable again, but it was a very stressful hour there...