The sending process and members of the process group must
have the same effective user ID, or
the sender must be the super-user.
As a single special case the continue signal SIGCONT may be sent
to any process that is a descendant of the current process.
The sending process and members of the process group must
have the same effective user ID, or
the sender must be the super-user.
As a single special case the continue signal SIGCONT may be sent
to any process that is a descendant of the current process.