Package: dkms Version: 3.2.2-1 Severity: important On cloud vm, dkms is called to compile modules for kernel installed or being installed. linux-headers-*-cloud depends on relevant linux-headers (normal version) so the latter is present. Thus dkms will compile modules for both (cloud and normal) and install them.
Then when apt autoremove or something is called, -cloud dkms modules will be removed along with linux-image-*-cloud, but modules for normal kernels will be left. If the cloud vm gets updated frequently, there will be lots of leftover under /usr/lib/modules. The fix may be one of: 1. prevent compilation of modules for linux-headers without relevant linux-image 2. detect linux-headers without linux-image and remove their dkms modules when autoremove
