https://bugs.freedesktop.org/show_bug.cgi?id=97500
--- Comment #4 from Grazvydas Ignotas notasas@gmail.com --- Created attachment 126768 --> https://bugs.freedesktop.org/attachment.cgi?id=126768&action=edit modprobe then rmmod
I've been trying today's drm-next-4.9-wip (merged with 4.8.0-rc7) and the situation has improved somewhat, doing rmmod just after modprobe succeeds with a WARN from TTM, but attempts to modprobe it again are failing. If X session is started/stopped before rmmod, the consequences are more severe, looks like some sort of corruption.