tag	line	file	source code
TIMER_BH	1019	kernel/sched.c	mark_bh(TIMER_BH);
TIMER_BH	1436	kernel/sched.c	init_bh(TIMER_BH, timer_bh);
TIMER_BH	1276	net/ipv4/tcp_input.c	mark_bh(TIMER_BH);