Accurately locates error codes based on Linux oops information

In the process of Linux downgrade tvp5150am1, encountered a kernel oops, the content is as follows:

[66.714603] Unable to handle kernel paging request at virtual address 00100104

[66.721658] PGD = d37d0000

[66.724344] [00100104] *pgd=950c2831, *pte=00000000, *ppte=00000000

[66.730587] Internal error:oops:817 [#1] PREEMPT

[66.735351] Modules linked in:vpu_encoder vpu_decoder_ext vpu_decoder vpu_manager ufsd (p) ohci_hcd ehci_hcd tcc_ndd (p) TCC_MTD Tcc_nand (P)

[66.747835] cpu:0 tainted:p (3.0.8-TCC #31)

[66.753481] PC is at cif_cam_isr_in8920+0x5c/0x368

[66.758234] LR is at cif_cam_isr_in8920+0x28/0x368

[66.763003] PC: [<c02acfb4>] LR: [<c02acf80>] psr:a0000193

[66.763013] Sp:d0055f18 ip:00000001 fp:00000001

[66.774439] R10:408b3f90 r9:c0666058 r8:00000000

[66.779640] r7:00000000 r6:00000000 r5:00000085 R4:C0673D70

[66.786141] r3:c0673ee0 r2:00200200 r1:00100100 r0:c0673ed8

[66.792642] FLAGS:NZCV IRQs off Fiqs on Mode svc_32 ISA ARM Segment User

[66.799835] control:10c53c7d table:937d0059 dac:00000015

[66.805552]

[66.805556] Pc:0xc02acf34:

[66.809797] cf34 aa000001 e59f0014 eb04e57b e1a00006 e8bd807c c0673d70 c0591780 c02acf58

[66.817943] cf54 c0591c93 e92d47f0 e59f433c e5946014 e3560000 1a000080 e594372c e5933040

[66.826090] cf74 e3130040 0a0000c6 eb0006b3 e5d43000 e3530000 1a000069 e5d42001 e3520000

[66.834237] cf94 15c43000 1a000069 e5943748 e3530000 0a000008 e5932004 e2840f5a e5931000

[66.842384] cfb4 e5812004 e5821000 e594216c e584316c e8830005 e5823000 e59f42cc e3a0e05c

[66.850531] cfd4 e1a02004 e5d43120 e594c678 e5b20160 e5d41120 e023c39e e584174c e5843748

[66.858678] cff4 e5900000 e1500002 0a00003b e1530000 0a000039 e5933008 e1510003 0a000008

[66.866825] d014 e59f0288 eb04e544 e5943748 e59f0280 e5931008 eb04e540 e594274c e5943748

[66.874973]

[66.874978] Lr:0xc02acf00:

[66.879219] cf00 1a00000e e59fc040 e3a03020 e3a00085 e59f1038 e1a02005 e58d5004 e58dc000

[66.887365] Cf20 ebf794b7 e2506000 a3a03001 a1a06005 a5c43744 aa000001 e59f0014 eb04e57b

[66.895512] cf40 e1a00006 e8bd807c c0673d70 c0591780 c02acf58 c0591c93 e92d47f0 e59f433c

[66.903660] cf60 e5946014 e3560000 1a000080 e594372c e5933040 e3130040 0a0000c6 eb0006b3

[66.911806] cf80 e5d43000 e3530000 1a000069 e5d42001 e3520000 15c43000 1a000069 e5943748

[66.919953] cfa0 e3530000 0a000008 e5932004 e2840f5a e5931000 e5812004 e5821000 e594216c

[66.928100] cfc0 e584316c e8830005 e5823000 e59f42cc e3a0e05c e1a02004 e5d43120 e594c678

[66.936247] cfe0 e5b20160 e5d41120 e023c39e e584174c e5843748 e5900000 e1500002 0a00003b

[66.944396]

[66.944400] Sp:0xd0055e98:

[66.948641] 5e98 1423a440 00000042 00000042 1443fd00 1423a440 00000042 c060bd28 00000042

[66.956788] 5eb8 00000000 ffffffff d0055f04 00000000 00000000 c003652c c0673ed8 00100100

[66.964935] 5ed8 00200200 c0673ee0 c0673d70 00000085 00000000 00000000 00000000 c0666058

[66.973082] 5ef8 408b3f90 00000001 00000001 d0055f18 c02acf80 c02acfb4 a0000193 ffffffff

[66.981228] 5f18 c576fee0 00000085 c0611654 00000000 00000000 c0666058 408b3f90 c0091494

[66.989375] 5f38 c0611654 c576fee0 d0055f60 c0611654 c061169c c576fee0 00000001 00000000

[66.997522] 5f58 d0054000 408b3f90 568f9dca c0091614 c0611654 c061169c 00000020 c00935e0

[67.005669] 5f78 00000020 00000001 00000020 c004030c 00000014 00000000 00000001 c00911a0

[67.013818]

[67.013822] r0:0xc0673e58:

[67.018063] 3e58 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

[67.026210] 3e78 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000003

[67.034357] 3e98 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

[67.042504] 3eb8 00000000 00000000 00000000 00000000 00000000 00000000 c0673f3c c0674108

[67.050651] 3ed8 c0673ed8 c0673ed8 00100100 00200200 00000000 00000001 00012c00 00000000

[67.058798] 3ef8 00000001 00000000 00000000 00000000 00000000 00000000 00000000 00000000

[67.066944] 3f18 00000001 00000000 00096000 00000000 00000000 00000000 00000000 00000000

[67.075092] 3f38 c0673d78 c0673f98 c0673ed0 00000001 00000001 00000000 00000002 00000001

[67.083240]

[67.083244] R3:0xc0673e60:

[67.087485] 3e60 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

[67.095632] 3e80 00000000 00000000 00000000 00000000 00000000 00000003 00000000 00000000

[67.103779] 3ea0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

[67.111926] 3ec0 00000000 00000000 00000000 00000000 c0673f3c c0674108 c0673ed8 c0673ed8

[67.120073] 3ee0 00100100 00200200 00000000 00000001 00012c00 00000000 00000001 00000000

[67.128220] 3f00 00000000 00000000 00000000 00000000 00000000 00000000 00000001 00000000

[67.136367] 3f20 00096000 00000000 00000000 00000000 00000000 00000000 c0673d78 c0673f98

[67.144514] 3f40 c0673ed0 00000001 00000001 00000000 00000002 00000001 00000000 00000000

[67.152662]

[67.152666] R4:0xc0673cf0:

[67.156907] 3cf0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

[67.165054] 3d10 00000000 00000000 00000000 00000000 00000000 00000000 00000000 c06021a0

[67.173201] 3d30 d5bbd400 d5bc7380 d5c49ac0 00000032 c02ab8b0 c02ab8b4 00000280 000001e0

[67.181348] 3D50 56595559 00000001 000005a0 000a8c00 00000007 00000000 00000280 000001e0

[67.189495] 3d70 00000000 f3380000 00000000 00000000 01010100 00000000 02d00000 000000f0

[67.197642] 3d90 00000000 02800000 000001e0 97c00000 00000000 00000006 97c00000 97c4b000

[67.205789] 3db0 97c5dc00 97c80000 97ccb000 97cddc00 97d00000 97d4b000 97d5dc00 97d80000

[67.213936] 3dd0 97dcb000 97dddc00 97e00000 97e4b000 97e5dc00 97e80000 97ecb000 97eddc00

[67.222085]

[67.222089] R9:0xc0665fd8:

[67.226330] 5fd8 00000000 d355d324 00000000 00000000 00000000 00000000 00000000 00000000

[67.234477] 5ff8 00000000 00000000 00000000 00000000 C57bec84 00000000 00000000 00000000

[67.242623] 6018 d50f78e4 d0285604 00000000 d50f7164 00000000 C57be144 00000000 00000003

[67.250770] 6038 d6401e60 d6548ee0 ffffffff ffffffff ffffffff ffffffff ffffffff 00000001

[67.258917] 6058 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

[67.267064] 6078 00000000 00000000 00000000 D641dbc0 00000000 00000000 00000000 00000000

[67.275211] 6098 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

[67.283358] 60b8 00000000 00000000 00000000 c0600920 00000000 00000000 00000000 00000000

[67.291510] Process WindowManager (pid:1198, stack limit = 0xd00542f0)

[67.298096] Stack: (0xd0055f18 to 0xd0056000)

[67.302432] 5f00:c576fee0 00000085

[67.310586] 5f20:c0611654 00000000 00000000 c0666058 408b3f90 c0091494 c0611654 c576fee0

[67.318733] 5f40:d0055f60 c0611654 c061169c c576fee0 00000001 00000000 d0054000 408b3f90

[67.326880] 5F60:568F9DCA c0091614 c0611654 c061169c 00000020 c00935e0 00000020 00000001

[67.335026] 5f80:00000020 c004030c 00000014 00000000 00000001 c00911a0 00000014 c0031060

[67.343174] 5fa0:ffffffff f5100000 00000001 c00367a0 01f067bc 4154c4d0 00000001 00000001

[67.351321] 5fc0:00000005 ffe93b65 00000001 41552d78 01f06700 fffffe4c 408b3f90 568F9DCA

[67.359468] 5fe0:0000b624 5c51cca8 40843a7c 408439ac 20000010 ffffffff 00000000 00000000

[67.367637] [<c02acfb4>] (cif_cam_isr_in8920+0x5c/0x368) from [<c0091494>] (handle_irq_event_percpu+ 0x30/0x174)

[67.377675] [<c0091494>] (handle_irq_event_percpu+0x30/0x174) from [<c0091614>] (handle_irq_event+0x3c/ 0x5c

[67.387467] [<c0091614>] (handle_irq_event+0x3c/0x5c) from [<c00935e0>] (HANDLE_LEVEL_IRQ+0XC4/0XF4)

[67.396572] [<c00935e0>] (handle_level_irq+0xc4/0xf4) from [<c004030c>] (tcc8920_irq_vioc_handler+0xd4/ 0xe0

[67.406361] [<c004030c>] (TCC8920_IRQ_VIOC_HANDLER+0XD4/0XE0) from [<c00911a0>] (generic_handle_irq+ 0x24/0x38)

[67.416332] [<c00911a0>] (generic_handle_irq+0x24/0x38) from [<c0031060>] (asm_do_irq+0x60/0x84)

[67.425083] [<c0031060>] (asm_do_irq+0x60/0x84) from [<c00367a0>] (__IRQ_USR+0X40/0XC0)

[67.433040] Exception stack (0xd0055fb0 to 0XD0055FF8)

[67.438071] 5FA0:01F067BC 4154c4d0 00000001 00000001

[67.446224] 5fc0:00000005 ffe93b65 00000001 41552d78 01f06700 fffffe4c 408b3f90 568F9DCA

[67.454368] 5fe0:0000b624 5c51cca8 40843a7c 408439ac 20000010 ffffffff

[67.460957] code:0a000008 e5932004 e2840f5a e5931000 (e5812004)

[67.467232]---[end trace 0feebdc8a0e1374f]---

[67.471677] Kernel panic-not syncing:fatal exception in interrupt

[67.478064] [<c003b2bc>] (unwind_backtrace+0x0/0xf0) from [<c03e63fc>] (panic+0x60/0x194)

[67.486192] [<c03e63fc>] (panic+0x60/0x194) from [<c003a150>] (DIE+0X178/0X1B8)

[67.493461] [<c003a150>] (die+0x178/0x1b8) from [<c003c304>] (__do_kernel_fault+0x64/0x84)

[67.501711] [<c003c304>] (__do_kernel_fault+0x64/0x84) from [<c003c4e8>] (DO_PAGE_FAULT+0X1C4/0X1DC)

[67.510805] [<c003c4e8>] (DO_PAGE_FAULT+0X1C4/0X1DC) from [<c00312b8>] (do_dataabort+0x34/0x94)

[67.519472] [<c00312b8>] (do_dataabort+0x34/0x94) from [<c003652c>] (__dabt_svc+0x4c/0x60)

[67.527685] Exception stack (0xd0055ed0 to 0xd0055f18)

[67.532695] 5ec0:c0673ed8 00100100 00200200 c0673ee0

[67.540881] 5ee0:c0673d70 00000085 00000000 00000000 00000000 c0666058 408b3f90 00000001

[67.549012] 5f00:00000001 d0055f18 c02acf80 c02acfb4 a0000193 ffffffff

[67.555589] [<c003652c>] (__dabt_svc+0x4c/0x60) from [<c02acfb4>] (cif_cam_isr_in8920+0x5c/0x368)

[67.564457] [<c02acfb4>] (cif_cam_isr_in8920+0x5c/0x368) from [<c0091494>] (handle_irq_event_percpu+ 0x30/0x174)

[67.574503] [<c0091494>] (handle_irq_event_percpu+0x30/0x174) from [<c0091614>] (handle_irq_event+0x3c/ 0x5c

[67.584296] [<c0091614>] (handle_irq_event+0x3c/0x5c) from [<c00935e0>] (HANDLE_LEVEL_IRQ+0XC4/0XF4)

[67.593404] [<c00935e0>] (handle_level_irq+0xc4/0xf4) from [<c004030c>] (tcc8920_irq_vioc_handler+0xd4/ 0xe0

[67.603190] [<c004030c>] (TCC8920_IRQ_VIOC_HANDLER+0XD4/0XE0) from [<c00911a0>] (generic_handle_irq+ 0x24/0x38)

[67.613157] [<c00911a0>] (generic_handle_irq+0x24/0x38) from [<c0031060>] (asm_do_irq+0x60/0x84)

[67.621913] [<c0031060>] (asm_do_irq+0x60/0x84) from [<c00367a0>] (__IRQ_USR+0X40/0XC0)

[67.629868] Exception stack (0xd0055fb0 to 0XD0055FF8)

[67.634878] 5FA0:01F067BC 4154c4d0 00000001 00000001

[67.643058] 5fc0:00000005 ffe93b65 00000001 41552d78 01f06700 fffffe4c 408b3f90 568F9DCA

[67.651204] 5fe0:0000b624 5c51cca8 40843a7c 408439ac 20000010 ffffffff

[67.657779] Rebooting in 5 seconds..

Use Oops Accurate positioning of information error code line steps:

1. When compiling, you need to open the Complie with debug Info option in Menuconfig:

Enter Menuconfig----------> enter kernel hacking------> select Compile the kernel with debug info----> Save, Exit.

2, the use of Arm-linux-androideabi-gdb debugging, note that the GDB debugger here depending on the situation, the name is not the same, the program provider's tools prevail.

Arm-linux-androideabi-gdb Vmlinux

3, see oops information inside this line: PC is atcif_cam_isr_in8920+0x5c/0x368

Type a command on the command line: L (lowercase l) * at cif_cam_isr_in8920+0x5c//L for Find,* denotes wildcard

The feedback information is as follows:

(GDB) L *CIF_CAM_ISR_IN8920+0X5C

0XC02ACFB4 is in cif_cam_isr_in8920 (include/linux/list.h:88).

Internal * This is only for the list manipulation where we know

* The Prev/next entries already!

85 */

__list_del static inline void (struct list_head * prev, struct list_head * next)

87 {

Next->prev = prev;

Prev->next = Next;

90}

91

92/**

Accurately locates error codes based on Linux oops information