崩溃内容如下：
67.481198] Unable to handle kernel paging request at virtual address 81f7c89c
[ 67.488811] pgd = ee5e0000
[ 67.491680] [81f7c89c] *pgd=00000000
[ 67.495437] Internal error: Oops: 80000005 [#1]
[ 67.500173] Modules linked in: omaplfb(O) pvrsrvkm(O)
[ 67.505477] CPU: 0 Tainted: G O (3.2.0-gb02ab39-dirty #230)
[ 67.512574] PC is at 0x81f7c89c
[ 67.515881] LR is at __do_page_cache_readahead+0x198/0x27c
[ 67.521618] pc : [<81f7c89c>] lr : [<c00a21e0>] psr: a0000013
[ 67.521628] sp : ee663cd8 ip : 91827364 fp : ee663d3c
[ 67.533621] r10: 00000000 r9 : eee4f9dc r8 : 00000000
[ 67.539082] r7 : 00000004 r6 : 00000001 r5 : 81f7c89e r4 : 00000001
[ 67.545903] r3 : 00000001 r2 : ee663d08 r1 : eee4f9d8 r0 : ee623440
[ 67.552731] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
[ 67.560192] Control: 10c5387d Table: ae5e0019 DAC: 00000015
[ 67.566194]
[ 67.566199] LR: 0xc00a2160:
[ 67.570660] 2160 e51b3054 e2833001 e50b3054 e2844001 e1570004 e1a06004 8affffdc e51b0054
[ 67.579261] 2180 e3500000 1a000009 e51b3034 e51b2050 e1530002 1a000048 e51b0054 e24bd028
[ 67.587857] 21a0 e89daff0 e3a03000 e50b3054 eafffff9 e24b004c eb068e78 e51b1058 e5913038
[ 67.596449] 21c0 e5935010 e3550000 0a000013 e51b0060 e24b2034 e51b1058 e51b3054 e12fff35
[ 67.605042] 21e0 e24b0034 eb00046a e24b004c eb06a375 eaffffe4 e10f3000 f10c0080 e5902000
[ 67.613636] 2200 e3822701 e5802000 e121f003 e51b3054 e2833001 e50b3054 eaffffd3 e3a06c01
[ 67.622232] 2220 e3a07c02 e3406010 e3407020 e1a08006 e51ba054 e51b9060 e1a06001 ea000004
[ 67.630829] 2240 e1a00004 e2855001 eb00043e e15a0005 9affffe4 e51b4030 e1a01006 e3a030d0
[ 67.639424]
[ 67.639428] SP: 0xee663c58:
[ 67.643889] 3c58 c02187b0 c02622f8 eeae9a90 eeae9ab0 00000215 eeae9c28 81f7c89c a0000013
[ 67.652487] 3c78 ffffffff ee663cc4 ee663d3c ee663c90 c05d4ff8 c0008414 ee623440 eee4f9d8
[ 67.661078] 3c98 ee663d08 00000001 00000001 81f7c89e 00000001 00000004 00000000 eee4f9dc
[ 67.669667] 3cb8 00000000 ee663d3c 91827364 ee663cd8 c00a21e0 81f7c89c a0000013 ffffffff
[ 67.678258] 3cd8 00000000 ee623440 00000001 eee4f9d8 00000001 ee663d08 91827364 ee663cf4
[ 67.686853] 3cf8 ee663cf4 ee663cfc ee663cfc 00000000 c121dc74 c121dc74 0000c8b6 ee623480
[ 67.695446] 3d18 00000000 eee4f9d8 00000020 eee4f918 00000001 ee623440 ee663d54 ee663d40
[ 67.704037] 3d38 c00a2590 c00a2054 00000003 ee663d50 ee663d8c ee663d58 c00a26a0 c00a2574
[ 67.712630]
[ 67.712634] FP: 0xee663cbc:
[ 67.717094] 3cbc ee663d3c 91827364 ee663cd8 c00a21e0 81f7c89c a0000013 ffffffff 00000000
[ 67.725689] 3cdc ee623440 00000001 eee4f9d8 00000001 ee663d08 91827364 ee663cf4 ee663cf4
[ 67.734280] 3cfc ee663cfc ee663cfc 00000000 c121dc74 c121dc74 0000c8b6 ee623480 00000000
[ 67.742872] 3d1c eee4f9d8 00000020 eee4f918 00000001 ee623440 ee663d54 ee663d40 c00a2590
[ 67.751465] 3d3c c00a2054 00000003 ee663d50 ee663d8c ee663d58 c00a26a0 c00a2574 ee663d84
[ 67.760058] 3d5c ee663d68 c0212c84 00000000 eee4f9d8 00000000 ee623440 eee4f918 ee663e44
[ 67.768652] 3d7c 00000000 ee663dac ee663d90 c00a2878 c00a25a4 00000000 00000001 00000000
[ 67.777245] 3d9c eee4f9d8 ee663e04 ee663db0 c00999d4 c00a2838 00000001 c01020c4 00000000
[ 67.785838]
[ 67.785842] R0: 0xee6233c0:
[ 67.790302] 33c0 ee6233c0 ee6233c0 ef010680 eee4ee18 c05ec7ec 00000001 00000800 00000001
[ 67.798894] 33e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 eeb9bf40
[ 67.807484] 3400 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 67.816077] 3420 00000000 00000000 00000000 00000000 ee6436f0 ee6436f0 eee4d380 00000000
[ 67.824670] 3440 ee623640 eea9f674 ef010200 eee4e798 c0600540 00000002 00020000 0000001d
[ 67.833264] 3460 00000000 00000000 00000000 00000000 00000000 00000000 00000000 eeb9bf40
[ 67.841856] 3480 00000000 00000004 00000003 00000020 00000000 00000000 ffffffff ffffffff
[ 67.850447] 34a0 00000000 00000000 00000000 00000000 ee6234b0 ee6234b0 eee4f9d8 00000000
[ 67.859042]
[ 67.859047] R1: 0xeee4f958:
[ 67.863507] f958 00000000 00015188 00000000 00000000 00000001 00000000 00000004 00000000
[ 67.872096] f978 00000000 00000001 eee4f980 eee4f980 00000000 00000000 c13c3498 eee4f994
[ 67.880688] f998 eee4f994 eee4f99c eee4f99c eee4fadc eea9f668 eee4e810 eee4e810 00000001
[ 67.889282] f9b8 0000000c 00000000 00000000 00000000 00000000 00000000 c0600540 00000000
[ 67.897876] f9d8 eee4f918 00000000 00000020 00000000 00000000 00000000 00010001 eee4f9f4
[ 67.906469] f9f8 eee4f9f4 00000001 eee4fa00 eee4fa00 00000000 00000000 eb93fc68 000200da
[ 67.915062] fa18 ef3f0ef8 eee4fa1c eee4fa1c 00000000 00000000 00000000 eee4fa30 eee4fa30
[ 67.923655] fa38 00000000 00000000 00000000 00000000 eeae9a90 00000000 00058180 000003e8
[ 67.932250]
[ 67.932255] R2: 0xee663c88:
[ 67.936715] 3c88 c05d4ff8 c0008414 ee623440 eee4f9d8 ee663d08 00000001 00000001 81f7c89e
[ 67.945310] 3ca8 00000001 00000004 00000000 eee4f9dc 00000000 ee663d3c 91827364 ee663cd8
[ 67.953906] 3cc8 c00a21e0 81f7c89c a0000013 ffffffff 00000000 ee623440 00000001 eee4f9d8
[ 67.962493] 3ce8 00000001 ee663d08 91827364 ee663cf4 ee663cf4 ee663cfc ee663cfc 00000000
[ 67.971082] 3d08 c121dc74 c121dc74 0000c8b6 ee623480 00000000 eee4f9d8 00000020 eee4f918
[ 67.979672] 3d28 00000001 ee623440 ee663d54 ee663d40 c00a2590 c00a2054 00000003 ee663d50
[ 67.988267] 3d48 ee663d8c ee663d58 c00a26a0 c00a2574 ee663d84 ee663d68 c0212c84 00000000
[ 67.996860] 3d68 eee4f9d8 00000000 ee623440 eee4f918 ee663e44 00000000 ee663dac ee663d90
[ 68.005453]
[ 68.005457] R9: 0xeee4f95c:
[ 68.009918] f95c 00015188 00000000 00000000 00000001 00000000 00000004 00000000 00000000
[ 68.018509] f97c 00000001 eee4f980 eee4f980 00000000 00000000 c13c3498 eee4f994 eee4f994
[ 68.027105] f99c eee4f99c eee4f99c eee4fadc eea9f668 eee4e810 eee4e810 00000001 0000000c
[ 68.035699] f9bc 00000000 00000000 00000000 00000000 00000000 c0600540 00000000 eee4f918
[ 68.044292] f9dc 00000000 00000020 00000000 00000000 00000000 00010001 eee4f9f4 eee4f9f4
[ 68.052882] f9fc 00000001 eee4fa00 eee4fa00 00000000 00000000 eb93fc68 000200da ef3f0ef8
[ 68.061476] fa1c eee4fa1c eee4fa1c 00000000 00000000 00000000 eee4fa30 eee4fa30 00000000
[ 68.070069] fa3c 00000000 00000000 00000000 eeae9a90 00000000 00058180 000003e8 000003e8
[ 68.078666] Process er.ServerThread (pid: 156, stack limit = 0xee6622f0)
[ 68.085671] Stack: (0xee663cd8 to 0xee664000)
[ 68.090227] 3cc0: 00000000 ee623440
[ 68.098782] 3ce0: 00000001 eee4f9d8 00000001 ee663d08 91827364 ee663cf4 ee663cf4 ee663cfc
[ 68.107338] 3d00: ee663cfc 00000000 c121dc74 c121dc74 0000c8b6 ee623480 00000000 eee4f9d8
[ 68.115893] 3d20: 00000020 eee4f918 00000001 ee623440 ee663d54 ee663d40 c00a2590 c00a2054
[ 68.124447] 3d40: 00000003 ee663d50 ee663d8c ee663d58 c00a26a0 c00a2574 ee663d84 ee663d68
[ 68.133001] 3d60: c0212c84 00000000 eee4f9d8 00000000 ee623440 eee4f918 ee663e44 00000000
[ 68.141555] 3d80: ee663dac ee663d90 c00a2878 c00a25a4 00000000 00000001 00000000 eee4f9d8
[ 68.150111] 3da0: ee663e04 ee663db0 c00999d4 c00a2838 00000001 c01020c4 00000000 00080001
[ 68.158665] 3dc0: ee663ec8 ffffffff 00000001 ee623480 00000fff 00000001 00000000 00000000
[ 68.167220] 3de0: 00000000 ee623440 00000000 ee663f10 ee662000 ee663ec8 ee663e84 ee663e08
[ 68.175775] 3e00: c009a774 c0099644 c00e64d4 c00e6414 ee663e34 ee663e20 c00d5dd0 c00e64b8
[ 68.184329] 3e20: 00020000 00000001 ee663e74 91827364 ee663e30 ee663e30 ee663e38 ee663e38
[ 68.192883] 3e40: 00000000 00000000 00000004 41149098 00000000 00000000 c00d5dd0 00000000
[ 68.201439] 3e60: 00000000 ee663f70 ee623440 fffffdee ee662000 00000000 ee663f3c ee663e88
[ 68.209994] 3e80: c00cc5a0 c009a68c 00000000 00000000 ee623448 00000001 00000000 00000001
[ 68.218547] 3ea0: ffffffff ee623440 00000000 00000000 00000000 00000000 ee62a140 00000000
[ 68.227100] 3ec0: 00000000 00000000 00000000 00000000 c0233ab4 c01020c4 00000004 00000000
[ 68.235655] 3ee0: 00000004 00000004 00000000 ee623440 ee663f3c ee663f00 c00cc8c8 c0233a1c
[ 68.244210] 3f00: 00015188 00000000 0000083e 00000000 41149098 00000004 5b5a9b78 ee623440
[ 68.252765] 3f20: 00000004 41149098 ee663f70 00000004 ee663f6c ee663f40 c00ccd2c c00cc500
[ 68.261322] 3f40: ee663f74 ee663f50 c00dc580 00000000 00000000 ee623440 41149098 00000004
[ 68.269880] 3f60: ee663fa4 ee663f70 c00cce04 c00ccc80 00000000 00000000 00015188 00000001
[ 68.278439] 3f80: 00001000 001b6508 00000036 00000000 00000003 c0013f68 00000000 ee663fa8
[ 68.286993] 3fa0: c0013dc0 c00ccdcc 001b6508 00000036 00000036 41149098 00000004 4005a5c8
[ 68.295549] 3fc0: 001b6508 00000036 00000000 00000003 ffffffff 5b44ec00 576407bc 5b5a9c04
[ 68.304102] 3fe0: 40245374 5b5a9bb8 4022cd45 40017438 00000010 00000036 53b10158 20500019
[ 68.312646] Backtrace:
[ 68.315225] [<c00a2048>] (__do_page_cache_readahead+0x0/0x27c) from [<c00a2590>] (ra_submit+0x28/0x30)
[ 68.324966] [<c00a2568>] (ra_submit+0x0/0x30) from [<c00a26a0>] (ondemand_readahead+0x108/0x1e8)
[ 68.334161] [<c00a2598>] (ondemand_readahead+0x0/0x1e8) from [<c00a2878>] (page_cache_sync_readahead+0x4c/0x68)
[ 68.344718] [<c00a282c>] (page_cache_sync_readahead+0x0/0x68) from [<c00999d4>] (do_generic_file_read.clone.36+0x39c/0x4e4)
[ 68.356353] r5:eee4f9d8 r4:00000000
[ 68.360109] [<c0099638>] (do_generic_file_read.clone.36+0x0/0x4e4) from [<c009a774>] (generic_file_aio_read+0xf4/0x260)
[ 68.371398] [<c009a680>] (generic_file_aio_read+0x0/0x260) from [<c00cc5a0>] (do_sync_read+0xac/0xec)
[ 68.381045] [<c00cc4f4>] (do_sync_read+0x0/0xec) from [<c00ccd2c>] (vfs_read+0xb8/0x14c)
[ 68.389500] r8:00000004 r7:ee663f70 r6:41149098 r5:00000004 r4:ee623440
[ 68.396546] [<c00ccc74>] (vfs_read+0x0/0x14c) from [<c00cce04>] (sys_read+0x44/0x74)
[ 68.404639] r8:00000004 r7:41149098 r6:ee623440 r5:00000000 r4:00000000
[ 68.411695] [<c00ccdc0>] (sys_read+0x0/0x74) from [<c0013dc0>] (ret_fast_syscall+0x0/0x30)
[ 68.420332] r8:c0013f68 r7:00000003 r6:00000000 r5:00000036 r4:001b6508
[ 68.427372] Code: bad PC value
[ 68.430659] ---[ end trace 326aab976a63753f ]---
[ 68.435490] Kernel panic - not syncing: Fatal exception
[ 68.440967] Backtrace:
[ 68.443561] [<c00179d8>] (dump_backtrace+0x0/0x110) from [<c05d2d40>] (dump_stack+0x18/0x1c)
[ 68.452397] r6:ee663c90 r5:00000001 r4:c09a8620 r3:c0927160
[ 68.458346] [<c05d2d28>] (dump_stack+0x0/0x1c) from [<c05d2db0>] (panic+0x6c/0x1a0)
[ 68.466377] [<c05d2d44>] (panic+0x0/0x1a0) from [<c0017ed4>] (die+0xe0/0xec)
[ 68.473758] r3:00000001 r2:00000000 r1:00000000 r0:c07ebfa8
[ 68.479697] r7:80000005
[ 68.482373] [<c0017df4>] (die+0x0/0xec) from [<c001a544>] (__do_kernel_fault+0x7c/0x8c)
[ 68.490752] r7:80000005 r6:00000000 r5:81f7c89c r4:ee663c90
[ 68.496712] [<c001a4c8>] (__do_kernel_fault+0x0/0x8c) from [<c05d67c8>] (do_page_fault+0xa4/0x184)
[ 68.506094] r8:ee62a140 r7:80000005 r6:81f7c89c r5:eebd5e40 r4:ee663c90
[ 68.512959] r3:ee663c90
[ 68.515715] [<c05d6724>] (do_page_fault+0x0/0x184) from [<c05d694c>] (do_translation_fault+0xa4/0xa8)
[ 68.525378] [<c05d68a8>] (do_translation_fault+0x0/0xa8) from [<c0008448>] (do_PrefetchAbort+0x40/0xa4)
[ 68.535215] r7:ee663c90 r6:81f7c89c r5:c090b4e0 r4:00000005
[ 68.541177] [<c0008408>] (do_PrefetchAbort+0x0/0xa4) from [<c05d4ff8>] (__pabt_svc+0x38/0x80)
[ 68.550103] Exception stack(0xee663c90 to 0xee663cd8)
[ 68.555388] 3c80: ee623440 eee4f9d8 ee663d08 00000001
[ 68.563959] 3ca0: 00000001 81f7c89e 00000001 00000004 00000000 eee4f9dc 00000000 ee663d3c
[ 68.572525] 3cc0: 91827364 ee663cd8 c00a21e0 81f7c89c a0000013 ffffffff
[ 68.579440] r7:ee663cc4 r6:ffffffff r5:a0000013 r4:81f7c89c
[ 68.585410] [<c00a2048>] (__do_page_cache_readahead+0x0/0x27c) from [<c00a2590>] (ra_submit+0x28/0x30)
[ 68.595167] [<c00a2568>] (ra_submit+0x0/0x30) from [<c00a26a0>] (ondemand_readahead+0x108/0x1e8)
[ 68.604376] [<c00a2598>] (ondemand_readahead+0x0/0x1e8) from [<c00a2878>] (page_cache_sync_readahead+0x4c/0x68)
[ 68.614946] [<c00a282c>] (page_cache_sync_readahead+0x0/0x68) from [<c00999d4>] (do_generic_file_read.clone.36+0x39c/0x4e4)
[ 68.626593] r5:eee4f9d8 r4:00000000
[ 68.630366] [<c0099638>] (do_generic_file_read.clone.36+0x0/0x4e4) from [<c009a774>] (generic_file_aio_read+0xf4/0x260)
[ 68.641665] [<c009a680>] (generic_file_aio_read+0x0/0x260) from [<c00cc5a0>] (do_sync_read+0xac/0xec)
[ 68.651330] [<c00cc4f4>] (do_sync_read+0x0/0xec) from [<c00ccd2c>] (vfs_read+0xb8/0x14c)
[ 68.659786] r8:00000004 r7:ee663f70 r6:41149098 r5:00000004 r4:ee623440
[ 68.666850] [<c00ccc74>] (vfs_read+0x0/0x14c) from [<c00cce04>] (sys_read+0x44/0x74)
[ 68.674954] r8:00000004 r7:41149098 r6:ee623440 r5:00000000 r4:00000000
[ 68.682021] [<c00ccdc0>] (sys_read+0x0/0x74) from [<c0013dc0>] (ret_fast_syscall+0x0/0x30)
[ 68.690669] r8:c0013f68 r7:00000003 r6:00000000 r5:00000036 r4:001b6508
