Comment 8 for bug 1725609

Brian, good question. I assumed it was the upgrade but it wansn't. I've done some digging and found this:

geoff@monster:~$ aptitude why linux-image-4.13.0-16-lowlatency
i docker-engine Recommends aufs-tools
i A aufs-tools Recommends aufs-dkms
i A linux-image-4.13.0-16-lowlatency Provides aufs-dkms

I'd installed the docker-engine package *ages* ago and forgotten about it. This is what dragged in the lowlatency kernel.

I'm pretty sure my ^^^^ fix will fail on the next kernel update too since the longterm fix would be:

sudo apt-get install linux-headers-lowlatency

As you mentioned