tag	line	file	source code
TIMER_BH	848	kernel/sched.c	mark_bh(TIMER_BH);
TIMER_BH	852	kernel/sched.c	mark_bh(TIMER_BH);
TIMER_BH	1008	kernel/sched.c	bh_base[TIMER_BH].routine = timer_bh;
TIMER_BH	1011	kernel/sched.c	enable_bh(TIMER_BH);