Hi ,
We are getting "Kernel panic - not syncing: Fatal exception" error.
Code:
$** *** *** *** *** *** *** *** Fatal *** *** *** *** *** *** *** **$
Build Info: 'L1.MP3:L5Pro_11_1.00_150819:mt6753:S01,alps/full_doov6753_35gc_l1/doov6753_35gc_l1:5.1/LMY47D/1439952549:userdebug/test-keys'
Flavor Info: 'None'
Exception Log Time:[Sat Aug 22 14:48:43 CST 2015] [349.711594]
Exception Class: Kernel (KE)
PC is at [<c0033ffc>] add_timer+0x24/0x28
Current Executing Process:
[irq/370-spi0.0, 586][kthreadd, 2]
Backtrace:
[<c0008368>] do_undefinstr+0x1d4/0x3b4
[<c000ed4c>] __und_svc_finish+0x0/0x14
[<c05ff7d0>] gf516m_enable_watchdog.part.10+0x2c/0x30
[<c0600594>] gf516m_irq+0x134/0x6f8
[<c00b2364>] irq_thread+0x114/0x16c
[<c0046a78>] kthread+0xbc/0xc0
[<c000f218>] ret_from_fork+0x14/0x3c
[<ffffffff>] 0xffffffff
$** *** *** *** *** *** *** *** Fatal *** *** *** *** *** *** *** **$
[229363.740739]<0>-(0)[586:irq/370-spi0.0]CPU: 0 PID: 586 Comm: irq/370-spi0.0 Tainted: G W 3.10.65 #1
[229363.740751]<0>-(0)[586:irq/370-spi0.0]task: da11fa80 ti: da130000 task.ti: da130000
[229363.740763]<0>-(0)[586:irq/370-spi0.0]PC is at add_timer+0x24/0x28
[229363.740775]<0>-(0)[586:irq/370-spi0.0]LR is at gf516m_enable_watchdog.part.10+0x2c/0x30
[229363.740788]<0>-(0)[586:irq/370-spi0.0]pc : [<c0033ffc>] lr : [<c05ff7d0>] psr: a0000113
[229363.740788]<0>sp : da131ec8 ip : da131ed8 fp : da131ed4
[229363.740801]<0>-(0)[586:irq/370-spi0.0]r10: 00000000 r9 : db29b0b8 r8 : 00000000
[229363.740811]<0>-(0)[586:irq/370-spi0.0]r7 : 00000000 r6 : c0e5f000 r5 : c0c99820 r4 : db29b000
[229363.740822]<0>-(0)[586:irq/370-spi0.0]r3 : 015d8bed r2 : c0cf74ac r1 : 00000000 r0 : db29b02c
[229363.740834]<0>-(0)[586:irq/370-spi0.0]Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel
[229363.740844]<0>-(0)[586:irq/370-spi0.0]Control: 10c0383d Table: 59d2406a DAC: 00000015
[229363.740853]<0>-(0)[586:irq/370-spi0.0]
[229363.740853]<0>PC: 0xc0033f7c:
[229363.740861]<0>-(0)[586:irq/370-spi0.0]3f7c e3550000 14953008 0a000006 e5150004 e1a01004 e1a02006 e12fff33 e4953008
[229363.740896]<0>-(0)[586:irq/370-spi0.0]3f9c e3530000 1afffff8 e3c9903f e5993004 e2433001 e5893004 e1a0200d e3c23d7f
[229363.740930]<0>-(0)[586:irq/370-spi0.0]3fbc e3c3303f e5933000 e3130002 0affffba eb22bf78 eaffffb8 e7f001f2 e1a0c00d
[229363.740963]<0>-(0)[586:irq/370-spi0.0]3fdc e92dd800 e24cb004 e5902000 e3520000 1a000002 e5901008 ebffff0e e89da800
[229363.740996]<0>-(0)[586:irq/370-spi0.0]3ffc e7f001f2 e1a0c00d e92ddff8 e24cb004 e3062688 e34c20c4 e1a07001 e5901000
[229363.741029]<0>-(0)[586:irq/370-spi0.0]401c e7922107 e30f3638 e3510000 e34c30c1 e1a0a000 e7936002 1a000018 e5903010
[229363.741062]<0>-(0)[586:irq/370-spi0.0]403c e3530000 0a000015 e1a00006 eb22c674 e30e3aa4 e34c30cb e59a200c e59a5008
[229363.741096]<0>-(0)[586:irq/370-spi0.0]405c e5931054 e2022003 e1862002 e58a200c e3510000 e1a08000 1a000009 e1a0100a
[229363.741132]<0>-(0)[586:irq/370-spi0.0]
[229363.741132]<0>LR: 0xc05ff750:
[229363.741140]<0>-(0)[586:irq/370-spi0.0]f750 e3a02001 e5c420d3 e5d33000 e1530002 989da818 e3050370 e59f1030 e34c00b6
[229363.741173]<0>-(0)[586:irq/370-spi0.0]f770 eb0b50c2 e89da818 e305034c e59f101c e34c00b6 eb0b50bd e89da818 e30502e4
[229363.741206]<0>-(0)[586:irq/370-spi0.0]f790 e59f1008 e34c00b6 eb0b50b8 e89da818 c096eb58 e1a0c00d e92dd800 e24cb004
[229363.741239]<0>-(0)[586:irq/370-spi0.0]f7b0 e30830c0 e34c30c2 e1a02000 e280002c e5933000 e2833e7d e5823034 ebe8d201
[229363.741273]<0>-(0)[586:irq/370-spi0.0]f7d0 e89da800 e1a0c00d e92dd800 e24cb004 e5d030d1 e3530001 189da800 e280002c
[229363.741306]<0>-(0)[586:irq/370-spi0.0]f7f0 ebe8d278 e89da800 e1a0c00d e92dd8f0 e24cb004 e3095820 e34c50c9 e1a07001
[229363.741339]<0>-(0)[586:irq/370-spi0.0]f810 e5d53000 e3530001 8a000028 e3096820 e34c60c9 e2860004 eb0b8efc e5974084
[229363.741372]<0>-(0)[586:irq/370-spi0.0]f830 e3a03000 e5873084 e5943064 e2433001 e5843064 e3530000 1a000009 e5d63000
[229363.741408]<0>-(0)[586:irq/370-spi0.0]
[229363.741408]<0>SP: 0xda131e48:
[229363.741416]<0>-(0)[586:irq/370-spi0.0]1e48 dafa0b30 00000000 da131e84 c0034000 00000000 c000f058 00000000 e7100000
[229363.741449]<0>-(0)[586:irq/370-spi0.0]1e68 c000ed4c da130000 da131ed4 da131e80 c000ed4c c00081a0 db29b02c 00000000
[229363.741482]<0>-(0)[586:irq/370-spi0.0]1e88 c0cf74ac 015d8bed db29b000 c0c99820 c0e5f000 00000000 00000000 db29b0b8
[229363.741515]<0>-(0)[586:irq/370-spi0.0]1ea8 00000000 da131ed4 da131ed8 da131ec8 c05ff7d0 c0033ffc a0000113 ffffffff
[229363.741548]<0>-(0)[586:irq/370-spi0.0]1ec8 da131ee4 da131ed8 c05ff7d0 c0033fe4 da131f1c da131ee8 c0600594 c05ff7b0
[229363.741581]<0>-(0)[586:irq/370-spi0.0]1ee8 00000000 00000000 00000001 da29ae60 da130000 00000000 00000001 c0c39740
[229363.741613]<0>-(0)[586:irq/370-spi0.0]1f08 da29ae40 da130020 da131f5c da131f20 c00b2364 c060046c c08e5bac c0c39790
[229363.741646]<0>-(0)[586:irq/370-spi0.0]1f28 00000000 c00b218c c00b2250 da5e5e18 00000000 da29ae40 c00b2250 00000000
[229363.741681]<0>-(0)[586:irq/370-spi0.0]
[229363.741681]<0>IP: 0xda131e58:
[229363.741689]<0>-(0)[586:irq/370-spi0.0]1e58 00000000 c000f058 00000000 e7100000 c000ed4c da130000 da131ed4 da131e80
[229363.741722]<0>-(0)[586:irq/370-spi0.0]1e78 c000ed4c c00081a0 db29b02c 00000000 c0cf74ac 015d8bed db29b000 c0c99820
[229363.741755]<0>-(0)[586:irq/370-spi0.0]1e98 c0e5f000 00000000 00000000 db29b0b8 00000000 da131ed4 da131ed8 da131ec8
[229363.741788]<0>-(0)[586:irq/370-spi0.0]1eb8 c05ff7d0 c0033ffc a0000113 ffffffff da131ee4 da131ed8 c05ff7d0 c0033fe4
[229363.741820]<0>-(0)[586:irq/370-spi0.0]1ed8 da131f1c da131ee8 c0600594 c05ff7b0 00000000 00000000 00000001 da29ae60
[229363.741853]<0>-(0)[586:irq/370-spi0.0]1ef8 da130000 00000000 00000001 c0c39740 da29ae40 da130020 da131f5c da131f20
[229363.741886]<0>-(0)[586:irq/370-spi0.0]1f18 c00b2364 c060046c c08e5bac c0c39790 00000000 c00b218c c00b2250 da5e5e18
[229363.741919]<0>-(0)[586:irq/370-spi0.0]1f38 00000000 da29ae40 c00b2250 00000000 00000000 00000000 da131fac da131f60
[229363.741953]<0>-(0)[586:irq/370-spi0.0]
[229363.741953]<0>FP: 0xda131e54:
[229363.741961]<0>-(0)[586:irq/370-spi0.0]1e54 c0034000 00000000 c000f058 00000000 e7100000 c000ed4c da130000 da131ed4
[229363.741994]<0>-(0)[586:irq/370-spi0.0]1e74 da131e80 c000ed4c c00081a0 db29b02c 00000000 c0cf74ac 015d8bed db29b000
[229363.742027]<0>-(0)[586:irq/370-spi0.0]1e94 c0c99820 c0e5f000 00000000 00000000 db29b0b8 00000000 da131ed4 da131ed8
[229363.742060]<0>-(0)[586:irq/370-spi0.0]1eb4 da131ec8 c05ff7d0 c0033ffc a0000113 ffffffff da131ee4 da131ed8 c05ff7d0
[229363.742093]<0>-(0)[586:irq/370-spi0.0]1ed4 c0033fe4 da131f1c da131ee8 c0600594 c05ff7b0 00000000 00000000 00000001
[229363.742125]<0>-(0)[586:irq/370-spi0.0]1ef4 da29ae60 da130000 00000000 00000001 c0c39740 da29ae40 da130020 da131f5c
[229363.742157]<0>-(0)[586:irq/370-spi0.0]1f14 da131f20 c00b2364 c060046c c08e5bac c0c39790 00000000 c00b218c c00b2250
[229363.742190]<0>-(0)[586:irq/370-spi0.0]1f34 da5e5e18 00000000 da29ae40 c00b2250 00000000 00000000 00000000 da131fac
[229363.742225]<0>-(0)[586:irq/370-spi0.0]
[229363.742225]<0>R0: 0xdb29afac:
[229363.742233]<0>-(0)[586:irq/370-spi0.0]afac 00000000 00000000 00000000 00000000 00000000 00000001 00000000 db29a840
[229363.742265]<0>-(0)[586:irq/370-spi0.0]afcc db29af80 00000001 00000000 00000000 00000000 00000000 4c029846 db29ad40
[229363.742297]<0>-(0)[586:irq/370-spi0.0]afec 00000000 00000000 a1ff0008 00001ca3 00000000 09e00000 00000000 db225000
[229363.742329]<0>-(0)[586:irq/370-spi0.0]b00c c0c9983c c0c9983c db29d000 00000000 00000000 db29b020 db29b020 c0600cd8
[229363.742362]<0>-(0)[586:irq/370-spi0.0]b02c c0cf74ac c0cf74ac 015d8bed c0cf6c40 c05ff624 db29b000 ffffffff 00000001
[229363.742395]<0>-(0)[586:irq/370-spi0.0]b04c 00000000 db29b050 db29b050 00000000 00000000 00000000 00000002 db2f8000
[229363.742427]<0>-(0)[586:irq/370-spi0.0]b06c 00000100 ffffffea ffffffea ffffffea 00000000 00000000 00000000 007a1200
[229363.742460]<0>-(0)[586:irq/370-spi0.0]b08c 000f4240 da159120 00000000 00000000 00000000 00000000 c0c6fd44 db6ac92c
[229363.742495]<0>-(0)[586:irq/370-spi0.0]
[229363.742495]<0>R2: 0xc0cf742c:
[229363.742503]<0>-(0)[586:irq/370-spi0.0]742c da648b98 da648b98 c0cf7434 c0cf7434 c0cf743c c0cf743c c0cf7444 c0cf7444
[229363.742537]<0>-(0)[586:irq/370-spi0.0]744c c0cf744c c0cf744c c0cf7454 c0cf7454 c0cf745c c0cf745c c0cf7464 c0cf7464
[229363.742570]<0>-(0)[586:irq/370-spi0.0]746c c0cf746c c0cf746c c0cf7474 c0cf7474 c0cf747c c0cf747c db6a2420 db6a2420
[229363.742603]<0>-(0)[586:irq/370-spi0.0]748c db74bebc db74bebc db73fb98 db68c5e8 c0cf749c c0cf749c c164aeac c163aeac
[229363.742636]<0>-(0)[586:irq/370-spi0.0]74ac db29b02c db29b02c c0cf74b4 c0cf74b4 c162aeac c162aeac c0cf74c4 c0cf74c4
[229363.742669]<0>-(0)[586:irq/370-spi0.0]74cc c0cf74cc c0cf74cc c0cf74d4 c0cf74d4 c0cf74dc c0cf74dc c0cf74e4 c0cf74e4
[229363.742702]<0>-(0)[586:irq/370-spi0.0]74ec c0cf74ec c0cf74ec c0cf74f4 c0cf74f4 c0cf74fc c0cf74fc c0cf7504 c0cf7504
[229363.742734]<0>-(0)[586:irq/370-spi0.0]750c c0cf750c c0cf750c c0cf7514 c0cf7514 c0cf751c c0cf751c c0cf7524 c0cf7524
[229363.742770]<0>-(0)[586:irq/370-spi0.0]
[229363.742770]<0>R4: 0xdb29af80:
[229363.742778]<0>-(0)[586:irq/370-spi0.0]af80 646f6f67 665f7869 70735f70 00000069 00000000 00000000 00000000 00000000
[229363.742811]<0>-(0)[586:irq/370-spi0.0]afa0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[229363.742843]<0>-(0)[586:irq/370-spi0.0]afc0 00000001 00000000 db29a840 db29af80 00000001 00000000 00000000 00000000
[229363.742874]<0>-(0)[586:irq/370-spi0.0]afe0 00000000 4c029846 db29ad40 00000000 00000000 a1ff0008 00001ca3 00000000
[229363.742906]<0>-(0)[586:irq/370-spi0.0]b000 09e00000 00000000 db225000 c0c9983c c0c9983c db29d000 00000000 00000000
[229363.742939]<0>-(0)[586:irq/370-spi0.0]b020 db29b020 db29b020 c0600cd8 c0cf74ac c0cf74ac 015d8bed c0cf6c40 c05ff624
[229363.742973]<0>-(0)[586:irq/370-spi0.0]b040 db29b000 ffffffff 00000001 00000000 db29b050 db29b050 00000000 00000000
[229363.743005]<0>-(0)[586:irq/370-spi0.0]b060 00000000 00000002 db2f8000 00000100 ffffffea ffffffea ffffffea 00000000
[229363.743040]<0>-(0)[586:irq/370-spi0.0]
[229363.743040]<0>R5: 0xc0c997a0:
[229363.743048]<0>-(0)[586:irq/370-spi0.0]97a0 00000000 00000000 00000001 00000001 00000000 00000000 00000000 00000000
[229363.743080]<0>-(0)[586:irq/370-spi0.0]97c0 00000001 00000000 00000000 00000000 0000000a 0000000a 00000032 00000032
[229363.743112]<0>-(0)[586:irq/370-spi0.0]97e0 0000000a 00000000 00000000 00000000 00000000 00000000 00000001 00000001
[229363.743143]<0>-(0)[586:irq/370-spi0.0]9800 00000000 00000000 00000000 00000000 00000001 00000000 00000000 00000000
[229363.743175]<0>-(0)[586:irq/370-spi0.0]9820 00000002 00000001 00000000 c0c9982c c0c9982c 00000000 00000000 db29b00c
[229363.743207]<0>-(0)[586:irq/370-spi0.0]9840 db29b00c 000057e4 00000000 c05fee80 c05feb34 00000000 c05ff5e4 c05ff5a4
[229363.743240]<0>-(0)[586:irq/370-spi0.0]9860 c0b66c9c c0c9b534 00000000 00000000 00000000 00000000 00000000 c0620bb8
[229363.743273]<0>-(0)[586:irq/370-spi0.0]9880 c0620bdc 00000000 00000000 00000000 00000000 00000000 db293980 c0c998b8
[229363.743307]<0>-(0)[586:irq/370-spi0.0]
[229363.743307]<0>R6: 0xc0e5ef80:
[229363.743315]<0>-(0)[586:irq/370-spi0.0]ef80 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[229363.743347]<0>-(0)[586:irq/370-spi0.0]efa0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[229363.743379]<0>-(0)[586:irq/370-spi0.0]efc0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[229363.743410]<0>-(0)[586:irq/370-spi0.0]efe0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[229363.743442]<0>-(0)[586:irq/370-spi0.0]f000 db29a780 00000001 db29b000 00000000 00000000 00000000 00000000 00000000
[229363.743475]<0>-(0)[586:irq/370-spi0.0]f020 da6e8000 00000a01 00000000 00000000 00000000 00000000 00000000 00000000
[229363.743506]<0>-(0)[586:irq/370-spi0.0]f040 00000000 00000000 00000000 dbc01600 00000000 00000000 00000000 00000000
[229363.743538]<0>-(0)[586:irq/370-spi0.0]f060 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[229363.743573]<0>-(0)[586:irq/370-spi0.0]
[229363.743573]<0>R9: 0xdb29b038:
[229363.743581]<0>-(0)[586:irq/370-spi0.0]b038 c0cf6c40 c05ff624 db29b000 ffffffff 00000001 00000000 db29b050 db29b050
[229363.743614]<0>-(0)[586:irq/370-spi0.0]b058 00000000 00000000 00000000 00000002 db2f8000 00000100 ffffffea ffffffea
[229363.743646]<0>-(0)[586:irq/370-spi0.0]b078 ffffffea 00000000 00000000 00000000 007a1200 000f4240 da159120 00000000
[229363.743678]<0>-(0)[586:irq/370-spi0.0]b098 00000000 00000000 00000000 c0c6fd44 db6ac92c 00000095 c0600b58 c06002a0
[229363.743711]<0>-(0)[586:irq/370-spi0.0]b0b8 00000001 00020002 c8131d94 c8131d94 00000000 00000000 01010101 930200a0
[229363.743744]<0>-(0)[586:irq/370-spi0.0]b0d8 00000000 00000002 00000094 00000000 00000000 00000000 00000000 00000000
[229363.743776]<0>-(0)[586:irq/370-spi0.0]b0f8 00000000 00000000 db225000 db293a00 db29abc0 db29d1a4 db738e0c db29ac00
[229363.743809]<0>-(0)[586:irq/370-spi0.0]b118 dbd240c0 c0c644b8 db29ad40 00000003 00000007 00000000 00000000 00000001
[229363.743844]<0>-(0)[586:irq/370-spi0.0]Process irq/370-spi0.0 (pid: 586, stack limit = 0xda130240)
[229363.743855]<0>-(0)[586:irq/370-spi0.0]Stack: (0xda131ec8 to 0xda132000)
[229363.743867]<0>-(0)[586:irq/370-spi0.0]1ec0: da131ee4 da131ed8 c05ff7d0 c0033fe4 da131f1c da131ee8
[229363.743880]<0>-(0)[586:irq/370-spi0.0]1ee0: c0600594 c05ff7b0 00000000 00000000 00000001 da29ae60 da130000 00000000
[229363.743893]<0>-(0)[586:irq/370-spi0.0]1f00: 00000001 c0c39740 da29ae40 da130020 da131f5c da131f20 c00b2364 c060046c
[229363.743906]<0>-(0)[586:irq/370-spi0.0]1f20: c08e5bac c0c39790 00000000 c00b218c c00b2250 da5e5e18 00000000 da29ae40
[229363.743919]<0>-(0)[586:irq/370-spi0.0]1f40: c00b2250 00000000 00000000 00000000 da131fac da131f60 c0046a78 c00b225c
[229363.743932]<0>-(0)[586:irq/370-spi0.0]1f60: c08e5bfc 00000000 da131f94 da29ae40 00000000 00000000 da131f78 da131f78
[229363.743945]<0>-(0)[586:irq/370-spi0.0]1f80: 00000000 00000000 da131f88 da131f88 da5e5e18 c00469bc 00000000 00000000
[229363.743957]<0>-(0)[586:irq/370-spi0.0]1fa0: 00000000 da131fb0 c000f218 c00469c8 00000000 00000000 00000000 00000000
[229363.743969]<0>-(0)[586:irq/370-spi0.0]1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[229363.743982]<0>-(0)[586:irq/370-spi0.0]1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[229363.743988]<0>-(0)[586:irq/370-spi0.0]Backtrace:
[229363.744010]<0>-(0)[586:irq/370-spi0.0][<c0033fd8>] (add_timer+0x0/0x28) from [<c05ff7d0>] (gf516m_enable_watchdog.part.10+0x2c/0x30)
[229363.744028]<0>-(0)[586:irq/370-spi0.0][<c05ff7a4>] (gf516m_enable_watchdog.part.10+0x0/0x30) from [<c0600594>] (gf516m_irq+0x134/0x6f8)
[229363.744049]<0>-(0)[586:irq/370-spi0.0][<c0600460>] (gf516m_irq+0x0/0x6f8) from [<c00b2364>] (irq_thread+0x114/0x16c)
[229363.744069]<0>-(0)[586:irq/370-spi0.0][<c00b2250>] (irq_thread+0x0/0x16c) from [<c0046a78>] (kthread+0xbc/0xc0)
[229363.744088]<0>-(0)[586:irq/370-spi0.0][<c00469bc>] (kthread+0x0/0xc0) from [<c000f218>] (ret_from_fork+0x14/0x3c)
[229363.744096]<0>-(0)[586:irq/370-spi0.0] r7:00000000 r6:00000000 r5:c00469bc r4:da5e5e18
[229363.744121]<0>-(0)[586:irq/370-spi0.0]Code: 1a000002 e5901008 ebffff0e e89da800 (e7f001f2)
[229363.744133]<0>-(0)[586:irq/370-spi0.0]---[ end trace 388d580427a3c3f5 ]---
[229363.744143]<0>-(0)[586:irq/370-spi0.0]Kernel panic - not syncing: Fatal exception
[229363.744188]<0>-(0)[586:irq/370-spi0.0]mrdump: cpu[0] tsk:da11fa80 ti:da130000
how to debug this error and to find the root cause?