[XorNot]

The problem is you reinvent kernels when doing this before too long. Containerization is a reaction to virtualization being too expensive - and unikernels are still pulling in huge amounts of redundant code and runtime compared to containers where the kernel af least is shared.

[viraptor]

I'm not sure that's a bad thing. If you're running only one app, there's a lot of things you don't need. No process groups, no scheduling hierarchies, no user privilege checks, likely no filesystem caching (maybe even no filesystem?), no legacy device handling, no terminals. We're kind of going towards replacing the big kernel with a posix-to-virtio layer already, and it may not be a terrible idea.

[eru]

Same arguments as those in favour of exokernels in the 90s.