HI3520D上出现Unable to handle kernel NULL pointer dereference at virtual addr

HI3520DV200上uboot和内核都能正常启动，运行程序后出现如下错误，是什么原因？
Unable to handle kernel NULL pointer dereference at virtual address 00000004
pgd = d2970000
[00000004] *pgd=92f3a831, *pte=00000000, *ppte=00000000
Internal error: Oops: 817 [#1]
Modules linked in: hi3520D_adec(P) hi3520D_aenc(P) hi3520D_ao(P) hi3520D_ai(P) hi3520D_sio(P) nvp6114_ex wdt hisi_gpio hi_rtc gpioi2c hi3520D_jpegd hi3520D_hdmi(P) hi3520D_vfmw(P) hi3520D_vdec(P) hifb(P) vcmp(P) hi3520D_region(P) hi3520D_vda(P) hi3520D_ive(P) hi3520D_vpss(P) hi3520D_vou(P) hi3520D_viu(P) hi3520D_jpege(P) hi3520D_rc(P) hi3520D_h264e(P) hi3520D_chnl(P) hi3520D_group(P) hi3520D_venc(P) hi3520D_dsu(P) hi3520D_tde(P) hi3520D_sys(P) hi3520D_base(P) hiuser mmz
CPU: 0    Tainted: P             (3.0.8 #3)
PC is at get_page_from_freelist+0x178/0x830
LR is at 0x200200
pc : []    lr : [<00200200>]    psr: 60000193
sp : d29edd00  ip : c08a530c  fp : d29edd94
r10: 00000002  r9 : c05c66a4  r8 : 00000001
r7 : c08a52f0  r6 : c08326a0  r5 : 00000001  r4 : c08a530c
r3 : c08a5308  r2 : 00100100  r1 : 00000000  r0 : 00000018
Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment user
Control: 10c53c7d  Table: 92970059  DAC: 00000015

PC: 0xc0081e10:
1e10  e50b0058 e50b4060 e51b403c e3540000 1a00018c e10f2000 f10c0080 e50b2038
1e30  e51b3048 e5997018 e0874003 e284c004 e50bc044 e5943004 e15c0003 0a0000e2
1e50  e51be050 e3002100 e3402010 e35e0000 e300e200 e340e020 151bc048 051b0048
1e70  108c3007 00803007 15936008 05936004 e2466018 e596401c e5961018 e5841000
1e90  e5814004 e5862018 e586e01c e597c000 e24c0001 e5870000 e59932c0 e30ecd9d
1eb0  e341c0f8 e51b2038 e063e009 e3120080 e1a0114e e51be040 e004019c e2843004
1ed0  e79e0103 e0802005 e78e2103 0a0000b6 e51b1038 e121f001 e3550000 da0000b6
1ef0  e5960008 e2861004 e50b1038 e5962004 e2801001 e5963000 e596e010 e3520000

SP: 0xd29edc80:
dc80  ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff d29edcec
dca0  c08326a0 c08a52f0 d29edd94 d29edcb8 c0031bec c002b274 00000018 00000000
dcc0  00100100 c08a5308 c08a530c 00000001 c08326a0 c08a52f0 00000001 c05c66a4
dce0  00000002 d29edd94 c08a530c d29edd00 00200200 c0081e90 60000193 ffffffff
dd00  00000041 00010500 d29eddac 00000000 00000000 ffffffff 00000000 00000000
dd20  d29edd64 0000000b c08a52f0 c05c6c50 c060a2a0 d29ec000 00000001 c05c68ec
dd40  c060a364 00000000 000200da 00000018 c08a530c c05acc84 00000000 60000113
dd60  c05c6c50 c05c66a4 d29ede14 00000041 c05a60d0 c05c6c4c 00000000 00000001

IP: 0xc08a528c:
528c  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
52ac  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
52cc  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
52ec  00000000 00000015 0000005a 0000000f c0875bd8 c0875cf8 c088c0b8 c088c0b8
530c  00000000 c08327d8 0000000d d32a42e0 00270918 c0887480 00000000 d28dcd68
532c  003af5a0 c0873b80 00000000 00000000 000140ec c0894300 00000000 d2c44a40
534c  0001a251 c087a880 00000000 d39cd560 0001a0e7 c0895980 00000000 d3294d80
536c  00033ae4 c0887280 00000000 d32956e0 003a5cb2 c08872a0 00000000 d34c0640

FP: 0xd29edd14:
dd14  ffffffff 00000000 00000000 d29edd64 0000000b c08a52f0 c05c6c50 c060a2a0
dd34  d29ec000 00000001 c05c68ec c060a364 00000000 000200da 00000018 c08a530c
dd54  c05acc84 00000000 60000113 c05c6c50 c05c66a4 d29ede14 00000041 c05a60d0
dd74  c05c6c4c 00000000 00000001 c05c6c50 000200da d29ede34 d29edd98 c008274c
dd94  c0081d24 00000001 00000041 c05c66a4 00000002 00000002 00000142 c08325c0
ddb4  9082e14f d2971310 d3294480 d29edddc d29eddd0 c00864d8 c0086404 d29ede04
ddd4  d29edde0 c0086550 c00864c8 d29eddfc d29eddf0 9083414f 000200da 00000000
ddf4  00000002 c00a1bfc c00a1b90 d29ede1c c05c66a4 c0039094 00000000 d3295e18

R3: 0xc08a5288:
5288  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
52a8  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
52c8  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
52e8  00000000 00000000 00000015 0000005a 0000000f c0875bd8 c0875cf8 c088c0b8
5308  c088c0b8 00000000 c08327d8 0000000d d32a42e0 00270918 c0887480 00000000
5328  d28dcd68 003af5a0 c0873b80 00000000 00000000 000140ec c0894300 00000000
5348  d2c44a40 0001a251 c087a880 00000000 d39cd560 0001a0e7 c0895980 00000000
5368  d3294d80 00033ae4 c0887280 00000000 d32956e0 003a5cb2 c08872a0 00000000

R4: 0xc08a528c:
528c  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
52ac  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
52cc  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
52ec  00000000 00000015 0000005a 0000000f c0875bd8 c0875cf8 c088c0b8 c088c0b8
530c  00000000 c08327d8 0000000d d32a42e0 00270918 c0887480 00000000 d28dcd68
532c  003af5a0 c0873b80 00000000 00000000 000140ec c0894300 00000000 d2c44a40
534c  0001a251 c087a880 00000000 d39cd560 0001a0e7 c0895980 00000000 d3294d80
536c  00033ae4 c0887280 00000000 d32956e0 003a5cb2 c08872a0 00000000 d34c0640

R6: 0xc0832620:
2620  00080208 00000002 00000000 00000000 d32a4ba1 0004c439 00100100 00200200
2640  00080208 00000002 00000000 00000000 d32a4ba1 0004c43a 00100100 00200200
2660  00080208 00000002 00000000 00000000 d32a4ba1 0004c43b 00100100 00200200
2680  00080208 00000002 00000000 00000000 d32a4ba1 0004c43c 00100100 00200200
26a0  00000000 00000000 00000000 00000000 00000000 00000000 00000000 c08a530c
26c0  00000000 00000000 ffffffff 00000002 00000000 00000000 c08326f8 c08326b8
26e0  00000000 00000000 ffffffff 00000002 00000000 00000000 c0832718 c08326d8
2700  00000000 00000000 ffffffff 00000002 00000000 00000000 c0832738 c08326f8

R7: 0xc08a5270:
5270  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
5290  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
52b0  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
52d0  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
52f0  00000015 0000005a 0000000f c0875bd8 c0875cf8 c088c0b8 c088c0b8 00000000
5310  c08327d8 0000000d d32a42e0 00270918 c0887480 00000000 d28dcd68 003af5a0
5330  c0873b80 00000000 00000000 000140ec c0894300 00000000 d2c44a40 0001a251
5350  c087a880 00000000 d39cd560 0001a0e7 c0895980 00000000 d3294d80 00033ae4

R9: 0xc05c6624:
6624  00000000 c05c6648 c05aac48 00000000 00000000 00000000 00000000 c04a0bcc
6644  c04a0c30 c05aac48 c05c6628 d38a30c4 d327b9c4 c05aac50 00000000 00000000
6664  c04a0c1c c0585064 00000000 00000000 c04a0ed8 00000000 c04a0d9c c024a9cc
6684  c024a9b4 c04a0d38 c04a0d14 00000000 c05b1230 c05b1198 c05c669c c05c669c
66a4  0000023a 000002c8 00000357 00000000 00000000 00000000 c08a52f0 00000000
66c4  c05c66c4 c05c66c4 c05c66cc c05c66cc c08327f8 c08327f8 c05c66dc c05c66dc
66e4  c05c66e4 c05c66e4 00000001 c05c66f0 c05c66f0 c088c0d8 c088c0d8 c05c6700
6704  c05c6700 c05c6708 c05c6708 c05c6710 c05c6710 00000001 c05c671c c05c671c
Process vfware (pid: 21142, stack limit = 0xd29ec268)
Stack: (0xd29edd00 to 0xd29ee000)
dd00: 00000041 00010500 d29eddac 00000000 00000000 ffffffff 00000000 00000000
dd20: d29edd64 0000000b c08a52f0 c05c6c50 c060a2a0 d29ec000 00000001 c05c68ec
dd40: c060a364 00000000 000200da 00000018 c08a530c c05acc84 00000000 60000113
dd60: c05c6c50 c05c66a4 d29ede14 00000041 c05a60d0 c05c6c4c 00000000 00000001
dd80: c05c6c50 000200da d29ede34 d29edd98 c008274c c0081d24 00000001 00000041
dda0: c05c66a4 00000002 00000002 00000142 c08325c0 9082e14f d2971310 d3294480
ddc0: d29edddc d29eddd0 c00864d8 c0086404 d29ede04 d29edde0 c0086550 c00864c8
dde0: d29eddfc d29eddf0 9083414f 000200da 00000000 00000002 c00a1bfc c00a1b90
de00: d29ede1c c05c66a4 c0039094 00000000 d3295e18 4c43d000 00000001 d3295e18
de20: d2971310 d3294480 d29ede94 d29ede38 c009460c c0082668 00000001 d2971310
de40: d29ede74 d29ede50 c0094cac 4c40d000 d3294480 d2970000 00000262 d3295e18
de60: 00000001 d2971310 d29edeac 4c43d000 d3294480 d2970000 00000262 d3295e18
de80: 00000001 d2971310 d29edecc d29ede98 c0094e60 c0093fe4 d2971310 00000001
dea0: d29edee4 d3294480 4c43d000 d3295e18 00000817 d29edfb0 d32944b4 d3918b80
dec0: d29edf04 d29eded0 c0038bb0 c0094dd8 00000000 00000fff d29edf04 00000817
dee0: c05a9e50 4c43d000 d29edfb0 00000001 00000000 00554650 d29edfac d29edf08
df00: c002b2a4 c0038a4c c0074d3c c0076410 00000000 d3294480 00000022 d3805f00
df20: 00000028 00000000 00000000 00000001 d29ec000 00554650 d29edf5c d29edf48
df40: c0074e5c c0074c94 c05aa220 d3805f00 d29edf74 d29edf60 c0076fc0 c003c220
df60: c0076f38 00000028 d29edf8c d29edf78 c0074c6c c0076f44 00000080 c05b2604
df80: d29edfac d29edf90 c002b044 c0048ec4 ffffffff 00000000 00024000 00000000
dfa0: 00000000 d29edfb0 c0031fa4 c002b274 00003fff 4c40d008 00004000 0002fff4
dfc0: 01743568 00000000 00024000 00000000 00000001 00000000 00554650 42ab96b4
dfe0: 4c40d008 42ab9510 4c43cffc 00228af0 80000010 ffffffff ffffffff ffffffff
Backtrace:
[] (get_page_from_freelist+0x0/0x830) from [] (__alloc_pages_nodemask+0xf0/0x604)
[] (__alloc_pages_nodemask+0x0/0x604) from [] (handle_pte_fault+0x634/0xa48)
[] (handle_pte_fault+0x0/0xa48) from [] (handle_mm_fault+0x94/0xc0)
[] (handle_mm_fault+0x0/0xc0) from [] (do_page_fault+0x170/0x1e4)
[] (do_page_fault+0x0/0x1e4) from [] (do_DataAbort+0x3c/0xa4)
[] (do_DataAbort+0x0/0xa4) from [] (ret_from_exception+0x0/0x10)
Exception stack(0xd29edfb0 to 0xd29edff8)
dfa0:                                     00003fff 4c40d008 00004000 0002fff4
dfc0: 01743568 00000000 00024000 00000000 00000001 00000000 00554650 42ab96b4
dfe0: 4c40d008 42ab9510 4c43cffc 00228af0 80000010 ffffffff
r7:00000000 r6:00024000 r5:00000000 r4:ffffffff
Code: e2466018 e596401c e5961018 e5841000 (e5814004)
>>>>