https://bugs.freedesktop.org/show_bug.cgi?id=76490
--- Comment #14 from Gustavo Lopes mail@geleia.net --- Still present in 3.16-rc2: https://gist.github.com/cataphract/29a7c132ef4c240e9330 (last message varies; in my other try it got a little further but the log started later as well)