tag	line	file	source code
TIMER_BH	685	kernel/sched.c	mark_bh(TIMER_BH);
TIMER_BH	695	kernel/sched.c	mark_bh(TIMER_BH);
TIMER_BH	698	kernel/sched.c	mark_bh(TIMER_BH);
TIMER_BH	805	kernel/sched.c	bh_base[TIMER_BH].routine = timer_bh;