Comment 33 for bug 1573231

Well, they're probably waiting for the patch to hit the LTS kernel 4.4 branch, which will probably happen on the 18th May... Or something like that.

But you can easily run it until then...

Use the 16.04 Beta 2 AMIs, but just disable kernel updates (say, with "apt-mark hold") and update everything else. That will basically give you all the final stuff, just without the last few kernel updates, including the one that broke most EC2 instances.

When a working kernel gets here, just apt-mark unhold and you should be good.

You might want to temporarily disable automatic security updates until then if you do it though...