Re: [PATCH] seccomp: add ptrace commands for suspend/resume

On 06/02, Tycho Andersen wrote:

quoted

Do we need to re-enable seccomp if a tracer detaches unexpectedly.
CRIU can be killed and we should try to not affect the task state even
in this case.

Yes, I think Pavel's suggestion on the CRIU list of simply
automatically re-enabling seccomp on ptrace detach

But note that you can't enable tsc if the tracer dies, in this case
the tracee can be running.

Otherwise, if we use PTRACE_O_ instead, it goes away automatically if
the tracer dies or does PTRACE_DETACH.

Oleg.