Hi Mike,
I've waited a little bit before replying, because I've worked on a dev
patch series, for debugging another crash. I'd like to use
this series for your failure too, as the OOPS you report
unfortunately does not ring any bell :(

So, could you please try to apply this patch series?  If it doesn't
apply, I'll rebase it.  If it applies, I hope it will either solve your
failure, or at least tell us more about the cause.

BTW, the patch "Makefile: add -bfq version suffix" may fail for a
conflict on kernel-version tags.  Fix the conflict as you like, or
just remove that patch if you don't want any bfq suffix in your kernel
name.

Crossing my fingers,
Paolo