1. Latest standard Ubuntu 16.04 kernel from 4.4 series works OK and additionally provides fill Spectre+Meltdown protection - linux-image-4.4.0-111-generic
1. Latest proposed Ubuntu 16.04 kernel from 4.4 series doesn't work - linux-image-4.4.0-112-generic
3. I've tried experimental kernel firm Canonical Kernel Team from PPA with retpoline patches. And it works, but is really sloooow
3 additional tests:
1. Latest standard Ubuntu 16.04 kernel from 4.4 series works OK and additionally provides fill Spectre+Meltdown protection - linux-image- 4.4.0-111- generic
1. Latest proposed Ubuntu 16.04 kernel from 4.4 series doesn't work - linux-image- 4.4.0-112- generic
3. I've tried experimental kernel firm Canonical Kernel Team from PPA with retpoline patches. And it works, but is really sloooow