[PATCH v2 0/7] xfree86: Handle drm race condition

[Dave Airlie]

>
> Because of the delayed fput in recent kernels, it is possible for plymouth to exit and not drop master right away.
> It's put onto a workqueue to be freed slightly later. Xorg-server starts in the meantime, opens a fd, but because the fd
> hasn't been closed by plymouth yet, it didn't get implicitly authenticated and it didn't get drm master either.
>

I thought plymouth explicitly dropped master, and closed later. I know
we "ab"use that fact on Fedora so X can grab the bo from plymouth
before it exits.

Dave.