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Oops错误

在at91rm9200下写了一个spi的驱动,加载后,运行测试程序时,蹦出这么个吓人的东西: Unable to handle kernel paging request at virtual address 000e0000               pgd = c1f9c000                                                                   [000e0000] *pgd=20315801, *pmd = 20315801, *pte = 00000000, *ppte = 00000000     Internal error: Oops: 7                                                          CPU: 0                                                                           pc : []    lr : []    Tainted: P                             sp : c1fa3f50  ip : 00000001  fp : c1fa3f78                                      r10: 401421e4  r9 : c1fa2000  r8 : bffffe1c                                      r7 : 00000000  r6 : ffffffea  r5 : c0282a20  r4 : 00000001                       r3 : 00000000  r2 : 00000001  r1 : 000e0000  r0 : bffffe1c                       Flags: Nzcv  IRQs on  FIQs on  Mode SVC_32  Segment user                         Control: C000317F  Table: 21F9C000  DAC: 00000015                                Process addrv_test (pid: 73, stack limit = 0xc1fa2374)                           Stack: (0xc1fa3f50 to 0xc1fa4000)                                                3f40:                                     00000001 00000001 c0282a20 ffffffea    3f60: 00000000 c34a61f4 00000001 c1fa3fa4 c1fa3f7c c0044040 c34a6194 c1fa3f88    3f80: c0043a18 4001d9cc bffffe54 00008330 00000003 c0017644 00000000 c1fa3fa8    3fa0: c00174a0 c0043f74 4001d9cc c001d5bc 00000003 bffffe1c 00000001 bffffe1c    3fc0: 4001d9cc bffffe54 00008330 4000c85c 00000001 000084d4 401421e4 bffffe34    3fe0: 400e40d0 bffffe1c 0000856c 400e40d4 60000010 00000003 00000000 20000040    Backtrace:                                                                       Function entered at [] from []                                r4 = 00000001                                                                   Function entered at [] from []                                r8 = C0017644  r7 = 00000003  r6 = 00008330  r5 = BFFFFE54                       r4 = 4001D9CC

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