p_sid            1215 kern/kern_sysctl.c 		ki->p_sid = p->p_session->s_leader->p_pid;
p_sid            1217 kern/kern_sysctl.c 		ki->p_sid = 0;
p_sid             371 sys/sysctl.h   	int32_t	p_sid;			/* PID_T: session id */