On Wed, 2023-11-22 at 09:42 +0000, Mark Brown wrote:
These features are expected to be inherited by new threads and cleared on exec(), unknown features should be rejected for enable but accepted for locking (in order to allow for future proofing).
The reason why I stuck with arch_prctl when this came up is that CRIU (and probably other ptracers) needs a way to unlock via ptrace. ptrace arch_prctl() can do this. Did you have a plan for unlocking via ptrace?