I'm the CTO at Joyent; totally agreed on all points (especially that we in SmartOS have it easier by being Unix), but I would also be curious about the stuff th

I'm the CTO at Joyent; totally agreed on all points (especially that we in SmartOS have it easier by being Unix), but I would also be curious about the stuff that you found not to work on LX: some stuff we know about (e.g., things that depend on Linux subsystems for which we don't have complete implementation like namespaces -- or on Linux kernel subsystems that we will never implement like eBPF or btrfs), but if you can provide any detail on what didn't work for you, we'd appreciate the opportunity to fix it. Over the past two years, we have made considerable strides in making LX a first-class interface to the system (and virtually all system calls are in-kernel now), and we've gotten to the point where it's amazingly good -- but we know that there's still a last (rocky!) mile to conquer.