I don’t have your answers, but the runtime source has some pointers that would likely get you the answer you seek: https://github.com/golang/go/blob/master/src/

I don’t have your answers, but the runtime source has some pointers that would likely get you the answer you seek: https://github.com/golang/go/blob/master/src/runtime/HACKING.md https://github.com/golang/go/blob/master/src/runtime/HACKING... It sounds like blocking calls switch to a system stack and return the Go stack to the executor pool, but I don’t have source links to back up that claim.