some more feedback: rpi2, overclocked, running 3.3.0-beta17 HDMI video, analog jack audio 2 PS3 controllers connected over bluetooth since I use the analog audio, I have to enable OUTPUT_PORT = 0\. However, when I do this I get terrible FPS lag in games (tried Diddy Kong Racing and Mario Kart 64) the trick with AudioPlugin = "mupen64plus-audio-sdl.so" fixed the FPS.
Mario Kart crashed after ~8min (the RasPi really froze, shells time out too). However, I'm not entirely sure if it was running gliden64 or n64, since I switched it multiple times 🙂 Diddy Kong ran fine for >20min (until I gave up 🙂 )