Comment 17 for bug 320581

I have this problem constantly. I agree this seems to be triggered most often by pulseaudio. I'm using an epa kernel mod for Oneiric which sets a nice value of -12 for pulse (I've used it since. The most common way to trigger the crash is when an internet ad on a website like yahoo tries to push audio through firefox while I'm listening to music with any music player. Firefox works fine but pa sometimes stutters in threadbuffering and the desktop crashes behind firefox (memlock?) and icons and sometimes even characters become corrupted. It seems there is a ruthless thread in buffer overrun. Also happens frequently when a second user logs in to the same Ubuntu box. Perhaps there's a bug in thread cloning between pa and gvfs? Bad header info in the XXXThread.clone of one or both? I'm not a thread expert but these are issues worthy of someone more familiar with the specific projects I suppose.