Do you have something connected to USB otg? Like a gamepad or pendrive....I only see this difference.
0.955632] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
It seems as if device found something connected to USB. I don't see other differences. I personally never had that issue, so no idea what can provoke it. Joystick and keyboard driver are no different in firmwares, so unless some app can provoke it... But in the log i don't see anything weird so no idea to be honest. All I can say is not a normal behavior, but no idea what can provoke it. I remember reading someone having a similar issue with firmware 3.4.7 but it seems it only happened to him randomly, like it seems your case.