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在调试zynq的时候，程序运行一段时间，发现MMU section translation fault，

然后，系统直接跳转到PrefetchAbortHandler

09000290: 0xe1a00000    nop

09000294: 0xee111f50    mrc     15, 0, r1, cr1, cr0, 2

09000298: 0xe381160f    orr     r1, r1, #15728640

0900029c: 0xee011f50    mcr     15, 0, r1, cr1, cr0, 2

090002a0: 0xeef81a10    vmrs    r1, fpexc

090002a4: 0xe3811101    orr     r1, r1, #1073741824

090002a8: 0xeee81a10    vmsr    fpexc, r1

090002ac: 0xee110f10    mrc     15, 0, r0, cr1, cr0

090002b0: 0xe3800b02    orr     r0, r0, #2048

090002b4: 0xee010f10    mcr     15, 0, r0, cr1, cr0

090002b8: 0xee110f30    mrc     15, 0, r0, cr1, cr0, 1

090002bc: 0xe3800004    orr     r0, r0, #4

090002c0: 0xe3800002    orr     r0, r0, #2

......... ..........  ...

d0143718:               MMU section translation fault

d0143719:               MMU section translation fault

d014371a:               MMU section translation fault

d014371b:               MMU section translation fault

d014371c:               MMU section translation fault

d014371d:               MMU section translation fault

d014371e:               MMU section translation fault

d014371f:               MMU section translation fault

d0143720:               MMU section translation fault

.section .vectors

_vector_table:

B _boot

B Undefined

B SVCHandler

B PrefetchAbortHandler

B DataAbortHandler

NOP /* Placeholder for address exception vector*/

B IRQHandler

B FIQHandler

跳转到了PrefetchAbortHandler，大侠们给点建议吧，在这先谢过了