That was the cockpit system, no indication it was Linux. The investigation report doesn't even include the word "Linux."
The photo you posted is not related to that incident, and is in fact from the entertainment system of another Airbus model. From the photo, it is not a Linux crash, but an application running on Linux that crashed. Linux is waiting for the program or service to be restarted. I've heard the software behind these systems is pretty slow and buggy.
Damn, you never research, do you?
Aibus uses Linux for a variety of purposes on their planes and are experiencing a myriad of issues because of it. See other links on that thread, and do your own search for "airbus" and "linux" to see all the problems they're having. To try to deny them is ridiculous...
He's well aware of the deliberate deception in his post.