https://bugs.freedesktop.org/show_bug.cgi?id=79980
--- Comment #2 from darkbasic darkbasic@linuxsystems.it --- No specific app (not counting KDE desktop effects). If the problem is the kernel it's a regression because I didn't have any problem with -rc5. Unfortunately it's not easy to trigger the crash so there is no chance to bisect given how busy I actually am.