T3 Linux 偶发启动异常

[sunwenchao]

有几台设备偶发启动异常，复现并抓开机log看，每次出问题好像不一样：
log1

[    7.048754] ------------[ cut here ]------------
[    7.048758] kernel BUG at mm/slab.c:2975!
[    7.048761] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM
[    7.048769] Modules linked in:
[    7.048776] CPU: 2 PID: 6 Comm: kworker/u8:0 Not tainted 3.10.65 #1
[    7.048799] Workqueue: khelper __call_usermodehelper
[    7.048803] task: e48dc480 ti: e48f6000 task.ti: e48f6000
[    7.048813] PC is at cache_alloc_refill+0x84/0x7a8
[    7.048818] LR is at cache_alloc_refill+0x38/0x7a8
[    7.048824] pc : [<c00fd2c8>]    lr : [<c00fd27c>]    psr: 20000093
[    7.048824] sp : e48f7d88  ip : e48f7d88  fp : e48f7dcc
[    7.048827] r10: e4b98ab4  r9 : 00000000  r8 : 00000010
[    7.048832] r7 : 00000000  r6 : e496e140  r5 : 000000d0  r4 : e4829600
[    7.048835] r3 : 00000001  r2 : 00000000  r1 : 000000d0  r0 : 00000026
[    7.048841] Flags: nzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
[    7.048846] Control: 10c53c7d  Table: 6422006a  DAC: 00000015

log2

[20:39:04][    4.677397] sunxi-ohci 1c14000.ohci0-controller: SW USB2.0 'Open' Host Controller (OHCI) Driver
[20:39:04][    4.687110] sunxi-ohci 1c14000.ohci0-controller: new USB bus registered, assigned bus number 3
[20:39:04][    4.696761] sunxi-ohci 1c14000.ohci0-controller: irq 72, io mem 0xc0359f34
[20:39:04][    4.730018] Internal error: Oops - undefined instruction: 0 [#1] PREEMPT SMP ARM
[20:39:04][    4.738098] Modules linked in:
[20:39:04][    4.740001] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 3.10.65 #1
[20:39:04][    4.740001] task: e48fa080 ti: e4956000 task.ti: e4956000
[20:39:04][    4.740001] PC is at ktime_get_update_offsets+0x28/0x10c
[20:39:04][    4.740001] LR is at hrtimer_interrupt+0x88/0x2a8
[20:39:04][    4.764088] usb usb3: New USB device found, idVendor=1d6b, idProduct=0001
[20:39:04][    4.764094] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[20:39:04][    4.764099] usb usb3: Product: SW USB2.0 'Open' Host Controller (OHCI) Driver
[20:39:04][    4.764104] usb usb3: Manufacturer: Linux 3.10.65 ohci_hcd
[20:39:04][    4.764109] usb usb3: SerialNumber: sunxi-ohci
[20:39:04][    4.764164] pc : [<c0069f8c>]    lr : [<c0049840>]    psr: 60000193
[20:39:04][    4.764164] sp : e4957e28  ip : e4957e80  fp : e4957e7c
[20:39:04][    4.764164] r10: c2197708  r9 : c2197740  r8 : 0000001d
[20:39:04][    4.764164] r7 : c219c8c0  r6 : ffffffff  r5 : 7fffffff  r4 : c0af2a00
[20:39:04][    4.764164] r3 : c2197740  r2 : c2197708  r1 : c21976d0  r0 : 64957ea0
[20:39:04][    4.764164] Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
[20:39:04][    4.764164] Control: 10c53c7d  Table: 4000406a  DAC: 00000015

log3

[    7.085083] kernel BUG at kernel/hrtimer.c:1287!
[    7.090008] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM
[    7.090008] Modules linked in:
[    7.090008] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.10.65 #1
[    7.090008] task: e48fa900 ti: e4952000 task.ti: e4952000
[    7.090008] PC is at __run_hrtimer+0xf0/0x224
[    7.090008] LR is at _raw_spin_lock+0x20/0x5c
[    7.090008] pc : [<c0048e44>]    lr : [<c064c718>]    psr: 80000193
[    7.090008] sp : e4953e50  ip : e4953e38  fp : e4953e7c
[    7.090008] r10: c00712dc  r9 : 00000001  r8 : c2185630
[    7.090008] r7 : c2185668  r6 : ffffffff  r5 : c2185630  r4 : c2185808
[    7.090008] r3 : 00000001  r2 : 0000037a  r1 : 00000000  r0 : 00000002
[    7.090008] Flags: Nzcv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
[    7.090008] Control: 10c53c7d  Table: 4000406a  DAC: 00000015

log4

[    0.840711] [DISP] disp_sys_power_enable,line:445:some error happen, fail to get regulator vcc-lcd
[    0.849736] Unable to handle kernel NULL pointer dereference at virtual address 00000094
[    0.860018] pgd = c0004000
[    0.862762] [00000094] *pgd=00000000
[    0.866374] Internal error: Oops: 5 [#1] PREEMPT SMP ARM
[    0.870000] Modules linked in:
[    0.870000] CPU: 2 PID: 1 Comm: swapper/0 Not tainted 3.10.65 #1
[    0.870000] task: e48dd9c0 ti: e48de000 task.ti: e48de000
[    0.870000] PC is at __blocking_notifier_call_chain+0x18/0x6c
[    0.870000] LR is at blocking_notifier_call_chain+0x28/0x30
[    0.870000] pc : [<c004b268>]    lr : [<c004b2e4>]    psr: a0000013
[    0.870000] sp : e48dfdc0  ip : e48dfdf0  fp : e48dfdec
[    0.870000] r10: 00000000  r9 : c0ace840  r8 : c09cf3bc
[    0.870000] r7 : 00000000  r6 : 00000001  r5 : c0b37f7c  r4 : e4a99010
[    0.870000] r3 : ffffffff  r2 : e4a99010  r1 : 00000004  r0 : 00000084
[    0.870000] Flags: NzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
[    0.870000] Control: 10c53c7d  Table: 4000406a  DAC: 00000015

log5

[    4.955191] sunxi-ohci 1c1c000.ohci2-controller: SW USB2.0 'Open' Host Controller (OHCI) Driver
[    4.964889] sunxi-ohci 1c1c000.ohci2-controller: new USB bus registered, assigned bus number 4
[    4.974516] sunxi-ohci 1c1c000.ohci2-controller: irq 97, io mem 0xc0359f34
[    5.030018] Unable to handle kernel paging request at virtual address ffffffff
[    5.037909] pgd = c0004000
[    5.040001] [ffffffff] *pgd=64fee821, *pte=00000000, *ppte=00000000
[    5.040001] Internal error: Oops: 17 [#1] PREEMPT SMP ARM
[    5.040001] Modules linked in:
[    5.040001] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.10.65 #1
[    5.040001] task: c09b8448 ti: c09a8000 task.ti: c09a8000
[    5.040001] PC is at ktime_get_update_offsets+0x1c/0x10c
[    5.040001] LR is at hrtimer_interrupt+0x88/0x2a8
[    5.040001] pc : [<c0069f80>]    lr : [<c0049840>]    psr: 60000193
[    5.040001] sp : c09a9dd8  ip : c09a9e30  fp : c09a9e2c
[    5.040001] r10: c217c708  r9 : c217c740  r8 : 0000001d
[    5.040001] r7 : c21818c0  r6 : ffffffff  r5 : 7fffffff  r4 : c0af2a00
[    5.040001] r3 : c217c740  r2 : c217c708  r1 : c217c6d0  r0 : c09a9e50
[    5.040001] Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
[    5.040001] Control: 10c53c7d  Table: 4000406a  DAC: 00000015

log6

[    4.607392] sunxi-ohci 1c14000.ohci0-controller: SW USB2.0 'Open' Host Controller (OHCI) Driver
[    4.617168] sunxi-ohci 1c14000.ohci0-controller: new USB bus registered, assigned bus number 3
[    4.626822] sunxi-ohci 1c14000.ohci0-controller: irq 72, io mem 0xc0359f34
[    4.650017] Unable to handle kernel paging request at virtual address 6ce8efdf
[    4.657906] pgd = c0004000
[    4.660001] [6ce8efdf] *pgd=00000000
[    4.660001] Internal error: Oops: 5 [#1] PREEMPT SMP ARM
[    4.660001] Modules linked in:
[    4.660001] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.10.65 #1
[    4.660001] task: c09b8448 ti: c09a8000 task.ti: c09a8000
[    4.660001] PC is at account_process_tick+0x4c/0xa4
[    4.660001] LR is at account_process_tick+0x20/0xa4
[    4.660001] pc : [<c00574ac>]    lr : [<c0057480>]    psr: 60000193
[    4.660001] sp : c09a9d80  ip : c09a9d80  fp : c09a9d9c
[    4.660001] r10: c00712dc  r9 : c09a9e58  r8 : c217c630
[    4.660001] r7 : 00000000  r6 : 00000000  r5 : c09b8448  r4 : 6ce8eb6b
[    4.660001] r3 : 017d8000  r2 : 00000cdd  r1 : 00000000  r0 : 00000000
[    4.660001] Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
[    4.660001] Control: 10c53c7d  Table: 4000406a  DAC: 00000015