WhyCan Forum(哇酷开发者社区)

root@TinaLinux:/# i2cdetect -y 6
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:                         -- -- -- -- -- -- -- --
10: -- -- -- -- 14 -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- 35 -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- 48 -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- 58 -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
root@TinaLinux:/#
root@TinaLinux:/# i2cdump -y 6 0x14
No size specified (using byte-data access)
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f    0123456789abcdef
00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
40: 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ?...............
50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0c    ...............?
d0: 11 83 02 20 11 83 02 20 11 83 02 20 11 a3 02 20    ??? ??? ??? ???
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
root@TinaLinux:/#

root@TinaLinux:/# lsmod
gt9xxnew_ts            47774  0
root@TinaLinux:/#
root@TinaLinux:/# rmmod gt9xxnew_ts
[  134.176774] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[  134.185945] pgd = ffffffc078a6e000
[  134.189780] [0000000000000000] *pgd=00000000b8326003, *pud=00000000b8326003, *pmd=0000000000000000
[  134.199913] Internal error: Oops: 96000006 [#1] PREEMPT SMP
[  134.206156] Modules linked in: gt9xxnew_ts(-)
[  134.211049] CPU: 3 PID: 2117 Comm: rmmod Not tainted 4.9.191 #5
[  134.217681] Hardware name: sun50iw10 (DT)
[  134.222171] task: ffffffc0789e5180 task.stack: ffffffc078334000
[  134.228815] PC is at i2c_do_del_adapter+0x34/0x8c
[  134.234086] LR is at __process_removed_driver+0x30/0x44
[  134.239939] pc : [<ffffff80084e2f00>] lr : [<ffffff80084e2fa4>] pstate: 60000145
[  134.248226] sp : ffffffc078337d50
[  134.251935] x29: ffffffc078337d50 x28: ffffffc0789e5180
[  134.257893] x27: ffffff8008792000 x26: 000000000000006a
[  134.263850] x25: 00000000000001b3 x24: 0000000000000015
[  134.269806] x23: dead000000000200 x22: dead000000000100
[  134.275763] x21: ffffffc07a1b6e90 x20: ffffff80007989c0
[  134.281720] x19: 0000000000000000 x18: 0000000000000000
[  134.287676] x17: 0000007f90acc420 x16: ffffff80080ff310
[  134.293632] x15: 0000000000000020 x14: 0000000000000002
[  134.299590] x13: ffffffffff000000 x12: ffffffffffffffff
[  134.305547] x11: 0000000000000018 x10: 7f7f7f7f7f7f7f7f
[  134.311503] x9 : fefefefefefefeff x8 : 0000000000000000
[  134.317460] x7 : ffffffffffffffff x6 : 000000ffffffffff
[  134.323417] x5 : 8080808080000000 x4 : 0000000000000000
[  134.329374] x3 : ffffffc07a1b6f00 x2 : ffffff8008b59dd0
[  134.335331] x1 : ffffffc07a1b6e90 x0 : fffffffffffffd28
[  134.341289]
[  134.341289] SP: 0xffffffc078337cd0:
[  134.346850] 7cd0  00000100 dead0000 00000200 dead0000 00000015 00000000 000001b3 00000000
[  134.356052] 7cf0  0000006a 00000000 08792000 ffffff80 789e5180 ffffffc0 78337d50 ffffffc0
[  134.365252] 7d10  084e2fa4 ffffff80 78337d50 ffffffc0 084e2f00 ffffff80 60000145 00000000
[  134.374451] 7d30  78337d40 ffffffc0 08778a44 ffffff80 ffffffff 0000007f 087705f0 ffffff80
[  134.383650] 7d50  78337d90 ffffffc0 084e2fa4 ffffff80 00000000 00000000 007988f8 ffffff80
[  134.392848] 7d70  084e2f74 ffffff80 084e2f74 ffffff80 60000000 00000000 0000006a 00000000
[  134.402047] 7d90  78337da0 ffffffc0 083d0dcc ffffff80 78337de0 ffffffc0 084e3344 ffffff80
[  134.411247] 7db0  08b59da0 ffffff80 08b59e98 ffffff80 007988f8 ffffff80 084e3330 ffffff80
[  134.420447]
[  134.420447] X0: 0xfffffffffffffca8:
[  134.426007] fca8  ******** ******** ******** ******** ******** ******** ******** ********
[  134.435211] fcc8  ******** ******** ******** ******** ******** ******** ******** ********
[  134.444411] fce8  ******** ******** ******** ******** ******** ******** ******** ********
[  134.453610] fd08  ******** ******** ******** ******** ******** ******** ******** ********
[  134.462810] fd28  ******** ******** ******** ******** ******** ******** ******** ********
[  134.472009] fd48  ******** ******** ******** ******** ******** ******** ******** ********
[  134.481210] fd68  ******** ******** ******** ******** ******** ******** ******** ********
[  134.490410] fd88  ******** ******** ******** ******** ******** ******** ******** ********
[  134.499612]
[  134.499612] X1: 0xffffffc07a1b6e10:
[  134.505173] 6e10  cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc
[  134.514372] 6e30  cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc
[  134.523572] 6e50  cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc
[  134.532770] 6e70  cccccccc cccccccc cccccccc cccccccc 7a759e80 ffffffc0 00000006 00000001
[  134.541970] 6e90  00000000 00000000 00000081 00000000 08813898 ffffff80 7a1b6e80 ffffffc0
[  134.551168] 6eb0  08813178 ffffff80 00000000 00000000 00000000 00000000 00000000 00000000
[  134.560365] 6ed0  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  134.569566] 6ef0  00000000 00000000 000004e2 00000003 7a759e90 ffffffc0 7a223380 ffffffc0
[  134.578766]
[  134.578766] X3: 0xffffffc07a1b6e80:
[  134.584327] 6e80  7a759e80 ffffffc0 00000006 00000001 00000000 00000000 00000081 00000000
[  134.593526] 6ea0  08813898 ffffff80 7a1b6e80 ffffffc0 08813178 ffffff80 00000000 00000000
[  134.602724] 6ec0  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  134.611923] 6ee0  00000000 00000000 00000000 00000000 00000000 00000000 000004e2 00000003
[  134.621121] 6f00  7a759e90 ffffffc0 7a223380 ffffffc0 7a2d1e80 ffffffc0 7a2e00b8 ffffffc0
[  134.630321] 6f20  7a15bd30 ffffffc0 7a759ea0 ffffffc0 7b638080 ffffffc0 08b3a298 ffffff80
[  134.639521] 6f40  7a2bf568 ffffffc0 00000009 00000007 00000000 00000000 08b59dd0 ffffff80
[  134.648720] 6f60  00000001 00020002 7a1b6f68 ffffffc0 7a1b6f68 ffffffc0 00000000 00000000
[  134.657922]
[  134.657922] X13: 0xfffffffffeffff80:
[  134.663580] ff80  ******** ******** ******** ******** ******** ******** ******** ********
[  134.672779] ffa0  ******** ******** ******** ******** ******** ******** ******** ********
[  134.681980] ffc0  ******** ******** ******** ******** ******** ******** ******** ********
[  134.691181] ffe0  ******** ******** ******** ******** ******** ******** ******** ********
[  134.700381] 0000  ******** ******** ******** ******** ******** ******** ******** ********
[  134.709581] 0020  ******** ******** ******** ******** ******** ******** ******** ********
[  134.718781] 0040  ******** ******** ******** ******** ******** ******** ******** ********
[  134.727981] 0060  ******** ******** ******** ******** ******** ******** ******** ********
[  134.737183]
[  134.737183] X21: 0xffffffc07a1b6e10:
[  134.742840] 6e10  cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc
[  134.752040] 6e30  cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc
[  134.761238] 6e50  cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc
[  134.770437] 6e70  cccccccc cccccccc cccccccc cccccccc 7a759e80 ffffffc0 00000006 00000001
[  134.779636] 6e90  00000000 00000000 00000081 00000000 08813898 ffffff80 7a1b6e80 ffffffc0
[  134.788835] 6eb0  08813178 ffffff80 00000000 00000000 00000000 00000000 00000000 00000000
[  134.798034] 6ed0  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  134.807232] 6ef0  00000000 00000000 000004e2 00000003 7a759e90 ffffffc0 7a223380 ffffffc0
[  134.816436]
[  134.816436] X28: 0xffffffc0789e5100:
[  134.822094] 5100  cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc
[  134.831292] 5120  cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc
[  134.840490] 5140  cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc
[  134.849689] 5160  cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc
[  134.858889] 5180  00000012 00000000 ffffffff ffffffff 00000001 00000000 00000000 00000000
[  134.868088] 51a0  78334000 ffffffc0 00000002 00404100 00000000 00000000 00000000 00000000
[  134.877285] 51c0  00000001 00000003 0000000f 00000000 ffff5df8 00000000 7839ec80 ffffffc0
[  134.886484] 51e0  00000003 00000001 00000078 00000078 00000078 00000000 08799370 ffffff80
[  134.895685]
[  134.895685] X29: 0xffffffc078337cd0:
[  134.901343] 7cd0  00000100 dead0000 00000200 dead0000 00000015 00000000 000001b3 00000000
[  134.910543] 7cf0  0000006a 00000000 08792000 ffffff80 789e5180 ffffffc0 78337d50 ffffffc0
[  134.919741] 7d10  084e2fa4 ffffff80 78337d50 ffffffc0 084e2f00 ffffff80 60000145 00000000
[  134.928941] 7d30  78337d40 ffffffc0 08778a44 ffffff80 ffffffff 0000007f 087705f0 ffffff80
[  134.938139] 7d50  78337d90 ffffffc0 084e2fa4 ffffff80 00000000 00000000 007988f8 ffffff80
[  134.947338] 7d70  084e2f74 ffffff80 084e2f74 ffffff80 60000000 00000000 0000006a 00000000
[  134.956537] 7d90  78337da0 ffffffc0 083d0dcc ffffff80 78337de0 ffffffc0 084e3344 ffffff80
[  134.965737] 7db0  08b59da0 ffffff80 08b59e98 ffffff80 007988f8 ffffff80 084e3330 ffffff80
[  134.974936]
[  134.976600] Process rmmod (pid: 2117, stack limit = 0xffffffc078334000)
[  134.984012] Stack: (0xffffffc078337d50 to 0xffffffc078338000)
[  134.990450] 7d40:                                   ffffffc078337d90 ffffff80084e2fa4
[  134.999228] 7d60: 0000000000000000 ffffff80007988f8 ffffff80084e2f74 ffffff80084e2f74
[  135.008005] 7d80: 0000000060000000 000000000000006a ffffffc078337da0 ffffff80083d0dcc
[  135.016782] 7da0: ffffffc078337de0 ffffff80084e3344 ffffff8008b59da0 ffffff8008b59e98
[  135.025560] 7dc0: ffffff80007988f8 ffffff80084e3330 ffffffc07a4eb528 ffffffc07a2233e8
[  135.034338] 7de0: ffffffc078337e10 ffffff80084e33f8 ffffff80007988f8 ffffff8008a51000
[  135.043117] 7e00: ffffff8008b92000 ffffff8008a3d000 ffffffc078337e30 ffffff80007952b4
[  135.051895] 7e20: ffffff8000798e18 ffffff8008a3d000 ffffffc078337e50 ffffff80080ff40c
[  135.060672] 7e40: ffffff8000798b00 ffffff80080ff400 0000000000000000 ffffff8008083200
[  135.069449] 7e60: fffffffffffffe95 0000004075540000 ffffffffffffffff 0000007f90acc444
[  135.078228] 7e80: 77656e7878397467 000000000073745f ffffffffffffffff 0000007f90ac82a4
[  135.087005] 7ea0: 0000000020000000 0000000000000015 00000000000001b3 00000000000409bf
[  135.095782] 7ec0: 0000000034eb0950 0000000000000000 000000000000000b 0000000000000073
[  135.104558] 7ee0: 000000000000002d 0000000034eb09c3 0000000000000073 0000000000000073
[  135.113336] 7f00: 000000000000006a 7f7f7f7f7f7f7f7f 4e46ff323c4b554b 7f7f7f7f7f7f7f7f
[  135.122114] 7f20: 0101010101010101 0000000000000028 0000000000000002 0000000000000020
[  135.130891] 7f40: 0000000000413fe0 0000007f90acc420 0000000000000000 0000007fec3f1ea4
[  135.139669] 7f60: 0000007fec3f16b8 0000000000000002 0000000000414028 0000000000403383
[  135.148446] 7f80: 0000000000414000 0000000000000000 0000000000000000 0000000000000000
[  135.157224] 7fa0: 0000000000000000 0000007fec3f1460 0000000000401848 0000007fec3f1460
[  135.166000] 7fc0: 0000007f90acc444 0000000060000000 0000000034eb0950 000000000000006a
[  135.174776] 7fe0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[  135.183551] Call trace:
[  135.186287] Exception stack(0xffffffc078337b80 to 0xffffffc078337cb0)
[  135.193506] 7b80: 0000000000000000 0000007fffffffff ffffffc078337d50 ffffff80084e2f00
[  135.202283] 7ba0: 0000000000080060 ffffff80082acfc8 ffffffc078337be0 ffffff800808a7a8
[  135.211059] 7bc0: ffffff8008778718 0000000000000001 ffffffc078337c10 ffffff80082acfc8
[  135.219838] 7be0: ffffff8008a01b18 ffffff8008a4ff00 ffffffc07872eb10 0000000000000140
[  135.228616] 7c00: 0000000000000000 ffffffc078337c60 ffffffc078337c50 ffffff80082acfc8
[  135.237392] 7c20: fffffffffffffd28 ffffffc07a1b6e90 ffffff8008b59dd0 ffffffc07a1b6f00
[  135.246168] 7c40: 0000000000000000 8080808080000000 000000ffffffffff ffffffffffffffff
[  135.254945] 7c60: 0000000000000000 fefefefefefefeff 7f7f7f7f7f7f7f7f 0000000000000018
[  135.263722] 7c80: ffffffffffffffff ffffffffff000000 0000000000000002 0000000000000020
[  135.272499] 7ca0: ffffff80080ff310 0000007f90acc420
[  135.277966] [<ffffff80084e2f00>] i2c_do_del_adapter+0x34/0x8c
[  135.284405] [<ffffff80084e2fa4>] __process_removed_driver+0x30/0x44
[  135.291432] [<ffffff80083d0dcc>] bus_for_each_dev+0x68/0x98
[  135.297676] [<ffffff80084e3344>] i2c_for_each_dev+0x40/0x60
[  135.303921] [<ffffff80084e33f8>] i2c_del_driver+0x1c/0x30
[  135.309996] [<ffffff80007952b4>] _2+0x2c/0x78 [gt9xxnew_ts]
[  135.316245] [<ffffff80080ff40c>] SyS_delete_module+0xfc/0x1d8
[  135.322685] [<ffffff8008083200>] el0_svc_naked+0x34/0x38
[  135.328639] Code: f2fbd5b6 f84c8e80 f2fbd5b7 d10b6000 (f9416c13)
[  135.335468] ---[ end trace 2be21a22e270aa69 ]---
Segmentation fault
root@TinaLinux:/#