I assume they're the mac equivalent of microsoft bluescreens, I've had one after a few days which was a surprise as it took me about 4 years to get a bluescreen on my dell laptop and it was a sign of imminent death. They were much more common on my PC desktop.
It restarted and I got a message (not onscreen like a bluescreen) called a panic report and something about kernels and a long screed of incomprehensible stuff.
Are they common for mac users? Anything to worry about?
Edited by techphobe, 19 April 2016 - 03:59 AM.