Looks like a useful addition. What would be even better is if they provided a GDB stub to allow for full remote kernel debugging. Most hypervisors have suppor

Looks like a useful addition. What would be even better is if they provided a GDB stub to allow for full remote kernel debugging. Most hypervisors have support for a GDB stub, but for some reason it's not the norm for cloud providers to expose it to customers. It would be especially useful for unikernels. Most kernels of any type don't offer self-debugging over the network, because it's hard and unreliable (you have to ensure that any functions you might want to set a breakpoint on aren't needed by the debugger itself, which means you basically need a whole separate network stack). But they can at least allow debugging userland processes; that doesn't work with unikernels, which bake the entire system into the kernel.