Comment # 9 on bug 1094780 from Takashi Iwai

It's fine to report to upstream as long as the kernel-default in Kernel:stable
also shows the issue.  TW kernel (i.e. the one in Kernel:stable) has very few
backport patches, and very close to the upstream as is.

4.16.x kernel seems showing the very same symptom; it gets a fifo PBDMA0 error
(although it shows repeatedly), then Oops at resume in evo_wait().

So, it'd be really better to report to upstream.  You can give the kernel
messages booted with drm.debug=0x0e as well, which shows more debug messages.