I thought I'd follow up on this to the list for the benefit of anyone else experiencing the same issues. About 20 minutes ago I rebuilt xine-lib with the pulse rework2 patch[0] and amarok has been playing sweet continuous music ever since, so it looks like it's solved my issues. [0] http://0pointer.de/public/xine-pulse-rework2.patch Testimony on what appears to be an earlier version of the same patch: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/176332 Gentoo users might be interested in tracking bug #217997 at bugs.gentoo.org