tag	line	file	source code
SIGURG	1389	net/inet/tcp.c	send_sig(SIGURG, current, 0);
SIGURG	2654	net/inet/tcp.c	kill_proc(sk->proc, SIGURG, 1);
SIGURG	2656	net/inet/tcp.c	kill_pg(-sk->proc, SIGURG, 1);