Regression in linux 4.9.x security update

[Vagrant Cascadian]

There's been a regression in linux 4.9.110-3+deb9u3 in stable security
updates causing problems booting various arm64 and arm systems.

I'd recommend avoiding upgrading your kernel until the issue is sorted
out, unless you love debugging these sorts of things.

For the details, please see:

https://bugs.debian.org/906769


live well,
vagrant