4.12 won't wake from sleep

[Boyan Penkov <boyan.penkov@gmail.com>]

Howdy,

I have installed sid's linux-image-4.12, since I wanted to experiment
with the BFQ scheduler.  I selected the bfq scheduler as a module at
boot by following the approach laid out here:
https://unix.stackexchange.com/questions/375600/how-to-enable-and-use-the-bfq-scheduler/376136#376136

When I do this and let the system sleep, it won't wake from sleep cleanly.

How can I help debug?  Is this "real" (worth filing a bug over), or am
I messing something up?

Cheers!

-- 
Boyan Penkov