Open blender and switch to sequencer, load any '.mp3'. Open Uses Prefs and turn on SDL (I also turn on 'Frame Dropping') and play it through a few times.
After about a minute i can't hear the sound anymore. If I go back to User Prefs and turn off SDL it causes a freeze. Pretty easy repro.
Another duplicate of:
The bug that affects all of this is not in OpenAL or SDL, it's in the pulseaudio alsa plugin... So using SDL you're not safe.