@dankcushions Here's my pastebin:
https://pastebin.com/NR8ixXeM
If anybody sees anything interesting in there please let me know. I can't figure anything out in this file sadly.
I don't know if it's of any interest but I plugged in my USB pendrive, ran RetroPie, hit F4 to exit EmuStation, ran the command dmesg > /tmp/dmesg.txt, ran emulationstation, played a PSX game which froze pretty much instantly, exited the game, took the file via WinSCP and there it is.