启动后 cpu 100%
info stack后
#1 0xc002e46c in panic (fmt=0xc00ebc78 "setup_timer: HZ is too small, cannot configure timer!") at kernel/panic.c:97
#2 0xc0023b6c in s3c2410_timer_setup () at arch/arm/mach-s3c2410/time.c:221
#3 0xc0010b6c in s3c2410_timer_init () at arch/arm/mach-s3c2410/time.c:249
#4 0xc000f0b0 in time_init () at arch/arm/kernel/time.c:506
#5 0xc0008894 in start_kernel () at init/main.c:489