I have been recently experiencing a lot of kernel panics on an arch-linux based system. After a lot of investigations of the possible reasons smplayer is the best candidate to why I was having these panics. The symptoms were sudden increase of processor/gpu fans and then maximum swap usage (up to 8GB) and then complete hang of the system, forced to hard reset.
Just thought of asking if anyone else had these problems.
System never hanged when I removed smplayer.