Looks like 4.13 introduces a new incompatibility

[Bruno Wolff III]

On Mon, Jul 10, 2017 at 05:03:42 +0200,
  "Jason A. Donenfeld" <Jason at zx2c4.com> wrote:
>
>I need to annoy Ted Tso about this. It'll get merged for rc1 or rc2.

Linus merged it a couple of hours ago, so it will make rc1. I'll be able 
to use Fedora kernels again early next week. I'm going to build another 
kernel manually in the mean time. I'll let you know if there is a problem, 
otherwise we can consider this issued closed.