[ignoramous]

> The kernel I'm involved with (Nanos) has other features such as 'exec protection' which prevents that app from exec-mapping anything not already explicitly mapped exec.

Does this mean JIT (and I guess most binary instrumentation (debuggers) / virtualization / translation tech) won't run as expected?

[eyberg]

We don't enable that exec-protect feature on by default explicitly for this reason. You are right - jit needs it.