(spawned off bug 5743)
We currently cannot support PulseAudio's new SRB channel because our glibc is too old. We need the eventfd() call which was added in 2.8.
Right now it seems to work anyway. But everyone else is switching over to SRB so the old mechanism might rot eventually and we could suffer from bugs that no one else sees.
We might also get away with some dlopen() magic if we feel we really need this before we can upgrade glibc.
We don't have an actual problem, so let's close this bug. It will resolve itself when we upgrade glibc.