關於linux Oops

 <1>Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c064c000
[00000000] *pgd=e0010031, *pte=00000000, *ppte=00000000
Internal error: Oops: 817 [#4]
Modules linked in: rt73 hiwdt stk_rtc8025 nfs lockd sunrpc mmc_block himci mmc_core sd_mmc_sdio hi3511_usb_1_1 hiusb nls_iso8859_1 nls_cp437 hifb fb hi3511_jpege hi3511_h264d hi3511_h264e hi3511_chnl hi3511_ao hi3511_ai hi3511_sio hi3511_md hi3511_vdec hi3511_group hi3511_venc hi3511_vpp hi3511_dsu hi3511_vou hi3511_viu hi3511_sys hi3511_base tde stkwm8978 stkmediactl stksaa7113 stkflashenv hidmac gpioi2c hiether mmz
CPU: 0
PC is at __queue_work+0x48/0x68
LR is at 0xc03254f0
pc : [<c004a05c>]    lr : [<c03254f0>]    Tainted: P    
sp : c046fb10  ip : c042c848  fp : c046fb28
r10: c0323038  r9 : c02cdef8  r8 : c046fb3c
r7 : 60000013  r6 : 00000000  r5 : c042c840  r4 : 00000100
r3 : 00000000  r2 : 00000001  r1 : 00000003  r0 : c042c850
Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  Segment user
Control: 5317F  Table: E064C000  DAC: 00000015
Process init (pid: 1, stack limit = 0xc046e194)
Stack: (0xc046fb10 to 0xc0470000)
fb00:                                     c004a0d4 c046e000 00000000 c046fb38
fb20: c046fb2c c004a0ec c004a024 c046fb70 c046fb3c c0042cf0 c004a0e4 bf1077a0
fb40: bf1077a0 00000000 00000011 c0322dd0 00000001 c0324884 0000000a c046e000
fb60: c0322da0 c046fb9c c046fb74 c003ebf0 c0042bfc c046e000 fe140000 00000010
fb80: c02cdc8c c046fbe0 c046fdb0 c031ce24 c046fbac c046fba0 c003eda0 c003eb90
fba0: c046fbdc c046fbb0 c0022e10 c003ed6c c003ebf0 c003efe8 ffffffff fe140000
fbc0: 00000010 0000000b c046e000 c0440d60 c046fc34 c046fbe0 c00219c4 c0022cf4
fbe0: 00009141 00000000 0000015f 60000013 00000544 c031e484 c031e488 0000000b
fc00: c046e000 c046fdb0 c0440d60 c046fc34 c046fc28 c046fc28 c0039804 c0158b8c
fc20: 20000013 ffffffff c046fc68 c046fc48 c003c278 c0039714 c028abb8 c046e000
fc40: c046e000 00000001 c046e000 c0440d60 c046fc7c 60000093 c046fc6c c046fc7c
fc60: c046fc6c c00270e4 c003bbe8 bf000000 c046fc9c c046fc80 c00297c4 c0026ee8
fc80: 00000001 00030001 c046fdb0 c0091364 c046fcc0 c046fca0 c00298e0 c0029768
fca0: e594c000 c0280244 c046e000 c046fdb0 e594c000 c046fd04 c046fcc4 c002b320
fcc0: c002988c c046fdb0 c046fcd4 c0062614 c00621d8 00000000 00000001 c02ce00c
fce0: 00000001 c02ce01c e160041e c046fdb0 a0000013 00000007 c046fdac c046fd08
fd00: c0029c40 c002b0c8 c05df0fc c046e000 c046fd40 c046fd20 c00924d4 c00920ec
fd20: a0000013 c58cc4d0 c046fd88 c05df0fc c046e000 c05df08c 00000002 20000013
fd40: c02d05d0 00000000 00000002 000000d0 00000002 c02d0954 c046fda0 c046fd68
fd60: c005c510 c005c0d8 c005ef34 00000000 c044e8a0 000000d0 00000000 c02d05d0
fd80: 00000000 00000002 000000d0 ffffffff c046fde4 05b6719b c0583d50 c046fe68
fda0: c046fe24 c046fdb0 c0021980 c0029c14 00003fff c0412860 000031fe 00000000
fdc0: e160041e c046ff3c 05b6719b c0583d50 c046fe68 c0447005 00000007 c046fe24
fde0: c046fe28 c046fdf8 c0085aa4 c0091364 a0000013 ffffffff 00000000 00000007
fe00: c046ff3c c046fe60 c046fe68 c04340c0 fffffeff 00000000 c046fe54 c046fe28
fe20: c0085aa4 c0091304 c4f2d978 00000007 c044700c c046fe68 c046ff3c c046e000
fe40: fffffeff 00000000 c046fe9c c046fe58 c0086784 c0085a8c c0060344 00000401
fe60: c04340c0 c0583d50 05b6719b 00000007 c0447005 c046ff3c c046fea0 00000000
fe80: c0447000 00000000 fffffeff 00000000 c046fefc c046fea0 c0086e10 c0085df4
fea0: c0580ee8 c0434180 c0036724 00000000 00000000 00000401 00000001 00000000
fec0: 00100100 00200200 ffffffea 00000000 00000238 00000072 c0021ee4 c046e000
fee0: c046ff3c c046e000 00000000 c0447000 c046ff1c c046ff00 c0086fdc c0086d74
ff00: c0447000 c046ff3c c0447000 c046ff3c c046ff38 c046ff20 c00873b4 c0086f24
ff20: c046e000 00000000 00000006 c046ffa4 c046ff3c c0075c00 c0087388 c0583d50
ff40: c04340c0 c0036724 00000000 00000000 00000401 00000001 00000000 00100100
ff60: 00200200 ffffffea 00000000 00000238 00000072 c0021ee4 c046e000 000bd1c0
ff80: 00000000 000bd2f0 00000021 c0021ee4 c046e000 0009d09c 00000000 c046ffa8
ffa0: c0021d60 c0075b98 000bd1c0 c0029c14 000bd2c4 00000006 00000001 00000002
ffc0: 000bd1c0 00000000 000bd2f0 00000002 00000001 00000000 0009d09c 00008358
ffe0: 000bd680 beb69dcc 00022a54 0007af28 60000010 000bd2c4 00000000 00000000
Backtrace:
[<c004a014>] (__queue_work+0x0/0x68) from [<c004a0ec>] (delayed_work_timer_fn+0x18/0x1c)
 r7 = 00000000  r6 = C046E000  r5 = C004A0D4
[<c004a0d4>] (delayed_work_timer_fn+0x0/0x1c) from [<c0042cf0>] (run_timer_softirq+0x104/0x1f4)
[<c0042bec>] (run_timer_softirq+0x0/0x1f4) from [<c003ebf0>] (__do_softirq+0x70/0xf0)
[<c003eb80>] (__do_softirq+0x0/0xf0) from [<c003eda0>] (irq_exit+0x44/0x4c)
[<c003ed5c>] (irq_exit+0x0/0x4c) from [<c0022e10>] (asm_do_IRQ+0x12c/0x140)
[<c0022ce4>] (asm_do_IRQ+0x0/0x140) from [<c00219c4>] (__irq_svc+0x24/0x80)
[<c0039700>] (panic+0x0/0x128) from [<c003c278>] (do_exit+0x6a0/0xbdc)
 r3 = 00000001  r2 = C046E000  r1 = C046E000  r0 = C028ABB8
[<c003bbd8>] (do_exit+0x0/0xbdc) from [<c00270e4>] (die+0x20c/0x2a0)
[<c0026ed8>] (die+0x0/0x2a0) from [<c00297c4>] (__do_kernel_fault+0x6c/0x7c)
[<c0029758>] (__do_kernel_fault+0x0/0x7c) from [<c00298e0>] (do_bad_area+0x64/0x68)
 r7 = C0091364  r6 = C046FDB0  r5 = 00030001  r4 = 00000001
[<c002987c>] (do_bad_area+0x0/0x68) from [<c002b320>] (do_alignment+0x268/0x5c8)
 r6 = E594C000  r5 = C046FDB0  r4 = C046E000
[<c002b0b8>] (do_alignment+0x0/0x5c8) from [<c0029c40>] (do_DataAbort+0x3c/0xa4)
[<c0029c04>] (do_DataAbort+0x0/0xa4) from [<c0021980>] (__dabt_svc+0x40/0x60)
 r8 = C046FE68  r7 = C0583D50  r6 = 05B6719B  r5 = C046FDE4
 r4 = FFFFFFFF
[<c00912f4>] (__d_lookup+0x0/0x140) from [<c0085aa4>] (do_lookup+0x28/0x1bc)
[<c0085a7c>] (do_lookup+0x0/0x1bc) from [<c0086784>] (__link_path_walk+0x9a0/0xf80)
[<c0085de4>] (__link_path_walk+0x0/0xf80) from [<c0086e10>] (link_path_walk+0xac/0x1b0)
[<c0086d64>] (link_path_walk+0x0/0x1b0) from [<c0086fdc>] (path_lookup+0xc8/0x1d0)
 r7 = C0447000  r6 = 00000000  r5 = C046E000  r4 = C046FF3C
[<c0086f14>] (path_lookup+0x0/0x1d0) from [<c00873b4>] (__user_walk+0x3c/0x5c)
 r7 = C046FF3C  r6 = C0447000  r5 = C046FF3C  r4 = C0447000
[<c0087378>] (__user_walk+0x0/0x5c) from [<c0075c00>] (sys_access+0x78/0x114)
 r6 = 00000006  r5 = 00000000  r4 = C046E000
[<c0075b88>] (sys_access+0x0/0x114) from [<c0021d60>] (ret_fast_syscall+0x0/0x2c)
Code: e583c004 e3a01003 e3a03000 e58ce004 (e586e000)
 <0>Kernel panic - not syncing: Aiee, killing interrupt handler!

怎麼定位Oops?