Sorry for no references, it's off the top of my head. There were past attempts at confining / "jailing" processes based on ptrace, it ended up being racey and/o

Sorry for no references, it's off the top of my head. There were past attempts at confining / "jailing" processes based on ptrace, it ended up being racey and/or escapeable. If you're relying on cooperation for isolation, you're back to square 1.