Fix fakemachine kernel oops at startup

Sometimes the fakemachine kernel OOPSes during early startup, what appears to happen is that it tries to schedule work on a workqueue which hasn't been initialized just yet (thus being NULL). In upstream linux this got fixed in the 4.10 kernel, which might mean it should be a candidate for the stable tree really.

As a quicker fix for our use-case pull in a kernel from backports (currently at 4.16) instead which should show if indeed the issue has been fixed as expected.

Signed-off-by: Sjoerd Simons sjoerd.simons@collabora.co.uk