механизм уведомлений в пользовательском пространстве Seccomp (Seccomp user-space notification mechanism)
Ошибки (баги) (Bugs)
If a SECCOMP_IOCTL_NOTIF_RECV ioctl
(2) operation is performed
after the target terminates, then the ioctl(2) call simply blocks
(rather than returning an error to indicate that the target no
longer exists).