哪位大神帮忙看一下 这是什么错误a
Unable to handle kernel paging request at virtual address 7f008820pgd = c7570000
*pgd=00000000
Internal error: Oops: 5 [#1]
Modules linked in: mytest1
CPU: 0 Not tainted(2.6.28.6 #235)
PC is at LED_ON+0x14/0xa4
LR is at led_ioctl+0x28/0x3c
pc : [<bf000014>] lr : [<bf000170>] psr: 20000013
sp : c757fed8ip : c757fee8fp : c757fee4
r10: 00000000r9 : c757e000r8 : 00000001
r7 : c75828c0r6 : 00000003r5 : 00000001r4 : 00000001
r3 : bf000788r2 : 00000001r1 : 7f008000r0 : 00000000
Flags: nzCvIRQs onFIQs onMode SVC_32ISA ARMSegment user
Control: 00c5387dTable: 57570008DAC: 00000015
Process myled2 (pid: 1126, stack limit = 0xc757e260)
Stack: (0xc757fed8 to 0xc7580000)
fec0: c757fef4 c757fee8
fee0: bf000170 bf00000c c757ff0c c757fef8 c00f3824 bf000154 c75828c0 00000001
ff00: c757ff7c c757ff10 c00f3ccc c00f37fc 400e4000 c708c000 c757ff34 c757ff28
ff20: c00aef3c c01c6d0c c757ff7c c757ff38 c007e550 c00aef38 c757ff64 c757ff48
ff40: c00e5780 00000000 c757ffb0 00000000 c6af38c0 00000003 00000001 00000001
ff60: c75828c0 c0077f68 c757e000 00000000 c757ffa4 c757ff80 c00f3d5c c00f38a0
ff80: 00000005 00000000 00008494 00000000 0000835c 00000036 00000000 c757ffa8
ffa0: c0077dc0 c00f3d28 00008494 00000000 00000003 00000001 00000001 00000003
ffc0: 00008494 00000000 0+-----------------------------+000 40025000 bef54d54
ffe0: 00000000 bef54d40 0| |003 00000000 00000000
Backtrace: |Cannot open /dev/ttyUSB0!|
[<bf000000>] (LED_ON+0x0/| |>] (led_ioctl+0x28/0x3c)
[<bf000148>] (led_ioctl+0+-----------------------------+824>] (vfs_ioctl+0x34/0)
[<c00f37f0>] (vfs_ioctl+0x0/0x78) from [<c00f3ccc>] (do_vfs_ioctl+0x438/0x488)
r5:00000001 r4:c75828c0
[<c00f3894>] (do_vfs_ioctl+0x0/0x488) from [<c00f3d5c>] (sys_ioctl+0x40/0x64)
[<c00f3d1c>] (sys_ioctl+0x0/0x64) from [<c0077dc0>] (ret_fast_syscall+0x0/0x2c)
r7:00000036 r6:0000835c r5:00000000 r4:00008494
Code: e92dd800 e24cb004 e59f108c e2400001 (e5913820)
---[ end trace 670891cb5f1a2f49 ]---
Segmentation fault
哪位大神帮忙看一下
这是什么错误a
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