https://bugs.freedesktop.org/show_bug.cgi?id=91545
--- Comment #3 from Marek Olšák maraeo@gmail.com --- Hi,
We only need a trace that reproduces this bug. Traces without the bug are not useful.
You can run qapitrace, look up the states of a certain frame, and see how the frame looks like. Then you can either trim it there or find a better frame.