kernel panic with 4.4.0-rc8

[umiddelb]

Under heavy load, the kernel panics from time to time ...

Bad mode in Synchronous Abort handler detected, code 0x86000005 -- IABT (current EL)
CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.4.0-rc8 #5
Hardware name: Pine64+ (DT)
task: ffffffc0304e7300 ti: ffffffc0304ec000 task.ti: ffffffc0304ec000
PC is at 0x200000
LR is at sched_clock+0x50/0xd8
pc : [<0000000000200000>] lr : [<ffffffc000158788>] pstate: 200001c5
sp : ffffffc0304ef9b0
x29: ffffffc0304ef9b0 x28: 0000000000000002
x27: 0000000000000007 x26: ffffffc000d76988
x25: 0000000001000000 x24: ffffffc03dfd1c80
x23: ffffffc03dfd2530 x22: ffffffc000d76980
x21: 0000000000000000 x20: ffffffc000d3ada0
x19: ffffffc000d76988 x18: 0000007fd3bf0b70
x17: 000000000043b280 x16: ffffffc000240668
x15: ffffffffffffffff x14: 0000000000000000
x13: 0000000000000000 x12: 0000000000000000
x11: 1ffffff805f1df8a x10: 1ffffff807bf9e33
x9 : ffffff8807bf9e33 x8 : dfffff9000000000
x7 : 0000000000000000 x6 : 00225510229b6000
x5 : dfffff9000000000 x4 : 0000000000000000
x3 : 00000000f4f4f404 x2 : 1ffffff8001aed34
x1 : dfffff9000000000 x0 : 0000000000200000

Internal error: Oops - bad mode: 0 [#1] PREEMPT SMP
Modules linked in:
CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.4.0-rc8 #5
Hardware name: Pine64+ (DT)
task: ffffffc0304e7300 ti: ffffffc0304ec000 task.ti: ffffffc0304ec000
PC is at 0x200000
LR is at sched_clock+0x50/0xd8
pc : [<0000000000200000>] lr : [<ffffffc000158788>] pstate: 200001c5
sp : ffffffc0304ef9b0
x29: ffffffc0304ef9b0 x28: 0000000000000002
x27: 0000000000000007 x26: ffffffc000d76988
x25: 0000000001000000 x24: ffffffc03dfd1c80
x23: ffffffc03dfd2530 x22: ffffffc000d76980
x21: 0000000000000000 x20: ffffffc000d3ada0
x19: ffffffc000d76988 x18: 0000007fd3bf0b70
x17: 000000000043b280 x16: ffffffc000240668
x15: ffffffffffffffff x14: 0000000000000000
x13: 0000000000000000 x12: 0000000000000000
x11: 1ffffff805f1df8a x10: 1ffffff807bf9e33
x9 : ffffff8807bf9e33 x8 : dfffff9000000000
x7 : 0000000000000000 x6 : 00225510229b6000
x5 : dfffff9000000000 x4 : 0000000000000000
x3 : 00000000f4f4f404 x2 : 1ffffff8001aed34
x1 : dfffff9000000000 x0 : 0000000000200000

Process swapper/2 (pid: 0, stack limit = 0xffffffc0304ec020)
Stack: (0xffffffc0304ef9b0 to 0xffffffc0304f0000)
f9a0:                                   ffffffc0304efa10 ffffffc0001041d8
f9c0: ffffffc03dfd1c80 ffffffc000d3ada0 0000000000000002 00000000ffff56b8
f9e0: ffffffc03dfd2530 ffffffc03dfd1c80 0000000000000000 0000000000000002
fa00: 0000000000000007 ffffffc0000ce228 ffffffc0304efa20 ffffffc0000f8f84
fa20: ffffffc0304efa50 ffffffc0000f9218 ffffffc03dfd1c80 ffffffc000d3ada0
fa40: 0000000000000002 ffffffc0000f9208 ffffffc0304efa70 ffffffc000107494
fa60: ffffffc03dfd1c80 ffffffc000107470 ffffffc0304efb30 ffffffc0001128d0
fa80: ffffffc000d1fc80 ffffffc000d3a300 ffffffc000d3ada0 00000000ffff56b8
faa0: 1ffffff80609df78 ffffffc03dfd1c80 0000000000000000 0000000000000002
fac0: 0000000000000007 0000000000000002 ffffffc0304e7300 0000000000000002
fae0: 0000000000000001 ffffffc000d3adb0 ffffffc0008d3f40 0000000000000140
fb00: ffffffc03dfd1c80 ffffffc0304efb00 ffffffc0304efb30 ffffffc0000fe908
fb20: ffffffc0304efb30 ffffffc0001128bc ffffffc0304efc20 ffffffc000112e88
fb40: ffffffc000d1fc80 000000003d2b2000 ffffffc03dfd1c80 0000000000000002
fb60: ffffffc03dfd1c80 00000000ffff56b8 ffffffc000d3a000 000000003d2b2000
fb80: 0000000000000007 0000000000000002 ffffffc0304efbb0 ffffffc000143dd0
fba0: ffffffc03dfcdb80 ffffffc000143dc4 ffffffc0304efcb0 ffffffc0000cd7ac
fbc0: 0000000041b58ab3 ffffffc000bed188 ffffffc000112820 ffffffc000d3a200
fbe0: ffffffc000000001 ffffffc0304ec018 0000000000000101 000000003d2b2000
fc00: 0000000000000001 00000000000000a0 ffffffc0304efc20 ffffffc000112ca0
fc20: ffffffc0304efcb0 ffffffc0000cd7ac 0000000000000007 0000000000000028
fc40: ffffffc000d3a238 ffffffc000d3a210 ffffffc0304ec000 ffffffc0304ec018
fc60: 0000000000000101 000000003d2b2000 0000000000000007 0000000000000002
fc80: ffffffc000d3adb0 ffffffc0006e77e8 ffffffc03dfd5200 ffffffc000d1ba38
fca0: ffffffc0304efcb0 ffffffc000000000 ffffffc0304efd50 ffffffc0000cdd2c
fcc0: ffffffc000d3a000 ffffffc000fcb280 0000000000000100 000000003d2b2000
fce0: 0000000000000000 0000000000000001 ffffffc030410000 ffffffc0304efe10
fd00: ffffffc000d3a000 0000000000000002 00200040304efd60 00000000ffff56b9
fd20: ffffffc00000000a ffffffc000d1ddf8 ffffffc000fcb280 ffffffc0304efcb0
fd40: ffffffc000d1ba38 ffffffc000d1ba5c ffffffc0304efd80 ffffffc00012958c
fd60: ffffffc000d1d000 ffffffc000d1ddf8 0000000000000000 000000003d2b2000
fd80: ffffffc0304efdd0 ffffffc000082808 ffffff900001400c ffffffc0304efe10
fda0: ffffffc000d3d000 ffffff9000014010 ffffff9000015000 ffffffc000d1bac0
fdc0: 0000000000000000 ffffffc0304eff60 ffffffc0304eff30 ffffffc0000855a8
fde0: ffffffc0304ec000 ffffffc0008cd680 ffffffc0304eff30 ffffffc0000868a0
fe00: 0000000020000145 ffffffc02f475080 0000000000000000 dfffff9000000000
fe20: 1ffffff80609d800 0000000000000000 0000000000000000 0000000000000018
fe40: 0021dafe229a6600 0000000000000000 ffffffc0304e7ac0 ffffffc0304efe70
fe60: 0000000000000760 1ffffff805f1df8a 0000000000000000 0000000000000000
fe80: 0000000000000000 ffffffffffffffff ffffffc000240668 000000000043b280
fea0: 0000007fd3bf0b70 ffffffc0304ec000 ffffffc0008cd680 ffffffc000d3a000
fec0: ffffffc0304ec01c 0000000000000000 ffffffc000d1bac0 0000000000000000
fee0: ffffffc0304eff60 ffffffc000d3a000 0000000000000002 ffffffc0304eff30
ff00: ffffffc00008689c ffffffc0304eff30 ffffffc0000868a0 0000000020000145
ff20: 00000000000001c0 ffffffc00013b110 ffffffc0304eff40 ffffffc00011c180
ff40: ffffffc0304eff60 ffffffc00011c460 ffffffc0304ec000 ffffffc00011c36c
ff60: ffffffc0304effc0 ffffffc00009097c ffffffc0008bc480 0000000000000002
ff80: 0000000000000002 ffffffc0304e7300 0000000000000000 0000000000000000
ffa0: 0000000042011000 0000000042014000 ffffffc000082b30 0000000000000000
ffc0: 0000000000000000 0000000041082b1c 0000000000000000 0000000000000e11
ffe0: ffffffc000fc8f60 0000000000000000 8204004040800040 0808840410000804
Call trace:
[<0000000000200000>] 0x200000
[<ffffffc0001041d8>] sched_clock_cpu+0x18/0x28
[<ffffffc0000f8f84>] update_rq_clock.part.12+0x24/0x68
[<ffffffc0000f9218>] update_rq_clock+0x28/0x38
[<ffffffc000107494>] update_blocked_averages+0x5c/0x818
[<ffffffc0001128d0>] rebalance_domains+0xb0/0x3f8
[<ffffffc000112e88>] run_rebalance_domains+0x270/0x2c0
[<ffffffc0000cd7ac>] __do_softirq+0x18c/0x310
[<ffffffc0000cdd2c>] irq_exit+0xfc/0x120
[<ffffffc00012958c>] __handle_domain_irq+0x7c/0xe8
[<ffffffc000082808>] gic_handle_irq+0x58/0xa8
Exception stack(0xffffffc0304efde0 to 0xffffffc0304eff00)
fde0: ffffffc0304ec000 ffffffc0008cd680 ffffffc0304eff30 ffffffc0000868a0
fe00: 0000000020000145 ffffffc02f475080 0000000000000000 dfffff9000000000
fe20: 1ffffff80609d800 0000000000000000 0000000000000000 0000000000000018
fe40: 0021dafe229a6600 0000000000000000 ffffffc0304e7ac0 ffffffc0304efe70
fe60: 0000000000000760 1ffffff805f1df8a 0000000000000000 0000000000000000
fe80: 0000000000000000 ffffffffffffffff ffffffc000240668 000000000043b280
fea0: 0000007fd3bf0b70 ffffffc0304ec000 ffffffc0008cd680 ffffffc000d3a000
fec0: ffffffc0304ec01c 0000000000000000 ffffffc000d1bac0 0000000000000000
fee0: ffffffc0304eff60 ffffffc000d3a000 0000000000000002 ffffffc0304eff30
[<ffffffc0000855a8>] el1_irq+0x68/0xd8
[<ffffffc00011c180>] default_idle_call+0x28/0x48
[<ffffffc00011c460>] cpu_startup_entry+0x240/0x290
[<ffffffc00009097c>] secondary_start_kernel+0x17c/0x1a8
[<0000000041082b1c>] 0x41082b1c
Code: bad PC value
INFO: rcu_preempt detected stalls on CPUs/tasks:
        2-...: (1 GPs behind) idle=157/2/0 softirq=3334/3334 fqs=5247
        (detected by 3, t=5254 jiffies, g=1796, c=1795, q=787)
Task dump for CPU 2:
swapper/2       R  running task        0     0      1 0x00000000
Call trace:
[<ffffffc000086ed4>] __switch_to+0xd4/0xf8
[<          (null)>]           (null)
systemd[1]: Starting Journal Service...
INFO: rcu_preempt detected stalls on CPUs/tasks:
        2-...: (1 GPs behind) idle=157/2/0 softirq=3334/3334 fqs=20989
        (detected by 3, t=21009 jiffies, g=1796, c=1795, q=1023)
Task dump for CPU 2:
swapper/2       R  running task        0     0      1 0x00000000
Call trace:
[<ffffffc000086ed4>] __switch_to+0xd4/0xf8
[<          (null)>]           (null)
INFO: rcu_preempt detected stalls on CPUs/tasks:
        2-...: (1 GPs behind) idle=157/2/0 softirq=3334/3334 fqs=36735
        (detected by 3, t=36764 jiffies, g=1796, c=1795, q=1027)
Task dump for CPU 2:
swapper/2       R  running task        0     0      1 0x00000000
Call trace:
[<ffffffc000086ed4>] __switch_to+0xd4/0xf8
[<          (null)>]           (null)
systemd[1]: systemd-journald.service stop-sigterm timed out. Killing.
systemd[1]: Starting Journal Service...
INFO: rcu_preempt detected stalls on CPUs/tasks:
        2-...: (1 GPs behind) idle=157/2/0 softirq=3334/3334 fqs=52479
        (detected by 3, t=52519 jiffies, g=1796, c=1795, q=1048)
Task dump for CPU 2:
swapper/2       R  running task        0     0      1 0x00000000
Call trace:
[<ffffffc000086ed4>] __switch_to+0xd4/0xf8
[<          (null)>]           (null)
systemd[1]: systemd-journald.service still around after SIGKILL. Ignoring.
systemd[1]: Starting Journal Service...
INFO: rcu_preempt detected stalls on CPUs/tasks:
        2-...: (1 GPs behind) idle=157/2/0 softirq=3334/3334 fqs=68222
        (detected by 3, t=68274 jiffies, g=1796, c=1795, q=1060)
Task dump for CPU 2:
swapper/2       R  running task        0     0      1 0x00000000
Call trace:
[<ffffffc000086ed4>] __switch_to+0xd4/0xf8
[<          (null)>]           (null)
systemd[1]: systemd-journald.service stop-final-sigterm timed out. Killing.
systemd[1]: Starting Journal Service...
INFO: rcu_preempt detected stalls on CPUs/tasks:
        2-...: (1 GPs behind) idle=157/2/0 softirq=3334/3334 fqs=83965
        (detected by 3, t=84029 jiffies, g=1796, c=1795, q=1070)
Task dump for CPU 2:
swapper/2       R  running task        0     0      1 0x00000000
Call trace:
[<ffffffc000086ed4>] __switch_to+0xd4/0xf8
[<          (null)>]           (null)
INFO: rcu_preempt detected stalls on CPUs/tasks:
        2-...: (1 GPs behind) idle=157/2/0 softirq=3334/3334 fqs=99711
        (detected by 3, t=99784 jiffies, g=1796, c=1795, q=1074)
Task dump for CPU 2:
swapper/2       R  running task        0     0      1 0x00000000
Call trace:
[<ffffffc000086ed4>] __switch_to+0xd4/0xf8
[<          (null)>]           (null)
systemd[1]: systemd-journald.service still around after final SIGKILL. Entering failed mode.
systemd[1]: Unit systemd-journald.service entered failed state.
systemd[1]: systemd-journald.service has no holdoff time, scheduling restart.
systemd[1]: Stopping Journal Service...
systemd[1]: Starting Journal Service...
INFO: rcu_sched detected stalls on CPUs/tasks:
        0-...: (1 GPs behind) idle=d09/1/0 softirq=1302/3861 fqs=5253
        2-...: (1 GPs behind) idle=157/2/0 softirq=1341/3334 fqs=5254
        (detected by 3, t=5255 jiffies, g=-93, c=-94, q=1)
Task dump for CPU 0:
swapper/0       R  running task        0     0      0 0x00000002
Call trace:
[<ffffffc000086ed4>] __switch_to+0xd4/0xf8
[<          (null)>]           (null)
Task dump for CPU 2:
swapper/2       R  running task        0     0      1 0x00000000
Call trace:
[<ffffffc000086ed4>] __switch_to+0xd4/0xf8
[<          (null)>]           (null)
INFO: rcu_preempt detected stalls on CPUs/tasks:
        2-...: (1 GPs behind) idle=157/2/0 softirq=3334/3334 fqs=115439
        (detected by 3, t=115539 jiffies, g=1796, c=1795, q=1113)
Task dump for CPU 2:
swapper/2       R  running task        0     0      1 0x00000000
Call trace:
[<ffffffc000086ed4>] __switch_to+0xd4/0xf8
[<          (null)>]           (null)
INFO: rcu_sched detected stalls on CPUs/tasks:
        0-...: (1 GPs behind) idle=d09/1/0 softirq=1302/3861 fqs=20997
        2-...: (1 GPs behind) idle=157/2/0 softirq=1341/3334 fqs=20998
        (detected by 3, t=21010 jiffies, g=-93, c=-94, q=1)
Task dump for CPU 0:
swapper/0       R  running task        0     0      0 0x00000002
Call trace:
[<ffffffc000086ed4>] __switch_to+0xd4/0xf8
[<          (null)>]           (null)
Task dump for CPU 2:
swapper/2       R  running task        0     0      1 0x00000000
Call trace:
[<ffffffc000086ed4>] __switch_to+0xd4/0xf8
[<          (null)>]           (null)
INFO: rcu_preempt detected stalls on CPUs/tasks:
        2-...: (1 GPs behind) idle=157/2/0 softirq=3334/3334 fqs=131171
        (detected by 3, t=131294 jiffies, g=1796, c=1795, q=1130)
Task dump for CPU 2:
swapper/2       R  running task        0     0      1 0x00000000
Call trace:
[<ffffffc000086ed4>] __switch_to+0xd4/0xf8
[<          (null)>]           (null)
INFO: rcu_sched detected stalls on CPUs/tasks:
        0-...: (1 GPs behind) idle=d09/1/0 softirq=1302/3861 fqs=36741
        2-...: (1 GPs behind) idle=157/2/0 softirq=1341/3334 fqs=36742
        (detected by 3, t=36765 jiffies, g=-93, c=-94, q=1)
Task dump for CPU 0:
swapper/0       R  running task        0     0      0 0x00000002
Call trace:
[<ffffffc000086ed4>] __switch_to+0xd4/0xf8
[<          (null)>]           (null)
Task dump for CPU 2:
swapper/2       R  running task        0     0      1 0x00000000
Call trace:
[<ffffffc000086ed4>] __switch_to+0xd4/0xf8
[<          (null)>]           (null)
INFO: rcu_preempt detected stalls on CPUs/tasks:
        2-...: (1 GPs behind) idle=157/2/0 softirq=3334/3334 fqs=146903
        (detected by 3, t=147049 jiffies, g=1796, c=1795, q=1142)
Task dump for CPU 2:
swapper/2       R  running task        0     0      1 0x00000000
Call trace:
[<ffffffc000086ed4>] __switch_to+0xd4/0xf8
[<          (null)>]           (null)
INFO: rcu_sched detected stalls on CPUs/tasks:
        0-...: (1 GPs behind) idle=d09/1/0 softirq=1302/3861 fqs=52485
        2-...: (1 GPs behind) idle=157/2/0 softirq=1341/3334 fqs=52486
        (detected by 3, t=52520 jiffies, g=-93, c=-94, q=1)
Task dump for CPU 0:
swapper/0       R  running task        0     0      0 0x00000002
Call trace:
[<ffffffc000086ed4>] __switch_to+0xd4/0xf8
[<          (null)>]           (null)
Task dump for CPU 2:
swapper/2       R  running task        0     0      1 0x00000000
Call trace:
[<ffffffc000086ed4>] __switch_to+0xd4/0xf8
[<          (null)>]           (null)
INFO: rcu_preempt detected stalls on CPUs/tasks:
        2-...: (1 GPs behind) idle=157/2/0 softirq=3334/3334 fqs=162644
        (detected by 1, t=162802 jiffies, g=1796, c=1795, q=1154)
Task dump for CPU 2:
swapper/2       R  running task        0     0      1 0x00000000
Call trace:
[<ffffffc000086ed4>] __switch_to+0xd4/0xf8
[<          (null)>]           (null)
INFO: rcu_sched detected stalls on CPUs/tasks:
        0-...: (1 GPs behind) idle=d09/1/0 softirq=1302/3861 fqs=68225
        2-...: (1 GPs behind) idle=157/2/0 softirq=1341/3334 fqs=68226
        (detected by 3, t=68275 jiffies, g=-93, c=-94, q=1)
Task dump for CPU 0:
swapper/0       R  running task        0     0      0 0x00000002
Call trace:
[<ffffffc000086ed4>] __switch_to+0xd4/0xf8
[<          (null)>]           (null)
Task dump for CPU 2:
swapper/2       R  running task        0     0      1 0x00000000
Call trace:
[<ffffffc000086ed4>] __switch_to+0xd4/0xf8
[<          (null)>]           (null)
INFO: rcu_preempt detected stalls on CPUs/tasks:
        2-...: (1 GPs behind) idle=157/2/0 softirq=3334/3334 fqs=178377
        (detected by 3, t=178559 jiffies, g=1796, c=1795, q=1166)
Task dump for CPU 2:
swapper/2       R  running task        0     0      1 0x00000000
Call trace:
[<ffffffc000086ed4>] __switch_to+0xd4/0xf8
[<          (null)>]           (null)
INFO: rcu_sched detected stalls on CPUs/tasks:
        0-...: (1 GPs behind) idle=d09/1/0 softirq=1302/3861 fqs=83969
        2-...: (1 GPs behind) idle=157/2/0 softirq=1341/3334 fqs=83970
        (detected by 3, t=84030 jiffies, g=-93, c=-94, q=1)
Task dump for CPU 0:
swapper/0       R  running task        0     0      0 0x00000002
Call trace:
[<ffffffc000086ed4>] __switch_to+0xd4/0xf8
[<          (null)>]           (null)
Task dump for CPU 2:
swapper/2       R  running task        0     0      1 0x00000000
Call trace:
[<ffffffc000086ed4>] __switch_to+0xd4/0xf8
[<          (null)>]           (null)
INFO: rcu_preempt detected stalls on CPUs/tasks:
        2-...: (1 GPs behind) idle=157/2/0 softirq=3334/3334 fqs=194108
        (detected by 3, t=194314 jiffies, g=1796, c=1795, q=1178)
Task dump for CPU 2:
swapper/2       R  running task        0     0      1 0x00000000
Call trace:
[<ffffffc000086ed4>] __switch_to+0xd4/0xf8
[<          (null)>]           (null)

[umiddelb]

swapper/1[0]: undefined instruction: pc=ffffffc00013e7e4
Code: f9007b01 9403686c b94b1320 35000500 (910c4396)
Internal error: Oops - undefined instruction: 0 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.4.0-rc8 #5
Hardware name: Pine64+ (DT)
task: ffffffc0304e0000 ti: ffffffc0304e8000 task.ti: ffffffc0304e8000
PC is at rcu_check_callbacks+0x18c/0xd88
LR is at rcu_check_callbacks+0x184/0xd88
pc : [<ffffffc00013e7e4>] lr : [<ffffffc00013e7dc>] pstate: 200001c5
sp : ffffffc0304eba80
x29: ffffffc0304eba80 x28: ffffffc000d6f380
x27: 000000003d2a3000 x26: 00000569bcf6e938
x25: ffffffc000d3a000 x24: ffffffc03dfc3b00
x23: ffffffc000d6f618 x22: ffffffc000d6f300
x21: ffffffc03dfc3b20 x20: 000000003d2a3000
x19: ffffffc000d20b00 x18: 0000007fdaadac40
x17: 0000002000f13010 x16: ffffffc0000cca78
x15: 000000200105a588 x14: 0000000000000008
x13: 0000000000000000 x12: 003d090000000000
x11: 00000000003d0900 x10: ffffffffffff8300
x9 : 00003d0900007d00 x8 : 0000000000017700
x7 : 0000000029972c98 x6 : ffffffc000fd9888
x5 : 0000000000000001 x4 : 0000000000000000
x3 : ffffff88001fb311 x2 : 1ffffff8001a7562
x1 : dfffff9000000000 x0 : 0000000000000000

Process swapper/1 (pid: 0, stack limit = 0xffffffc0304e8020)
Stack: (0xffffffc0304eba80 to 0xffffffc0304ec000)
ba80: ffffffc0304ebb80 ffffffc00014449c ffffffc0304e0000 0000000000000000
baa0: ffffffc03dfc00a4 00000569bcf6f061 ffffffc03dfbfc40 ffffffc03dfbfc04
bac0: ffffffc03dfbfc08 00000569bcf6e938 0000000000000001 ffffffc03dfbfc00
bae0: 0000000041b58ab3 ffffffc000bef028 ffffffc00014e790 ffffffc000fda000
bb00: 00000569bcf6dd00 ffffffc000d3a000 ffffffc0304ebb20 ffffffc000896f18
bb20: ffffffc0304ebb30 ffffffc0000cddcc ffffffc0008da700 ffffffc0008da500
bb40: 00000000304e0000 00000000000001c0 ffffffc000d3a300 ffffffc0000ce238
bb60: ffffffc0304ebb80 ffffffc000144494 ffffffc0304e0000 ffffffc000d6f380
bb80: ffffffc0304ebba0 ffffffc0001596d4 ffffffc0304ebf18 ffffffc03dfc0048
bba0: ffffffc0304ebbd0 ffffffc000159790 ffffffc0304ebe10 ffffffc03dfc0048
bbc0: ffffffc03dfc00a4 ffffffc000159780 ffffffc0304ebc00 ffffffc00014550c
bbe0: ffffffc03dfbfc00 ffffffc03dfc0048 ffffffc000159738 ffffffc03dfbfc58
bc00: ffffffc0304ebc80 ffffffc0001459d0 00000569bcf6e938 0000000000000003
bc20: ffffffc03dfbfc1e 7fffffffffffffff ffffffc03dfbfc20 ffffffc03dfbfc18
bc40: ffffffc03dfbfca8 ffffffc03dfbfce8 ffffffc03dfbfd28 ffffffc03dfbfc00
bc60: ffffffc03dfbfca8 ffffffc000fbdc7b ffffffc03dfbfc48 00000569bcf6e938
bc80: ffffffc0304ebcf0 ffffffc0006e77e8 ffffffc03dfc6200 ffffffc000d1ba38
bca0: 000000003d2a3000 ffffffc000df6700 ffffffc030418500 ffffffc03dfc6200
bcc0: 0000000000000003 000000003d2a3000 ffffffc000d3a000 0000000000000001
bce0: 00000569bcf6e938 ffffffc03dfbfc34 ffffffc0304ebd10 ffffffc00012fb40
bd00: ffffffc030404500 ffffffc00012fb30 ffffffc0304ebd60 ffffffc000129148
bd20: ffffffc030404500 ffffffc000d1ddf8 0000000000000000 000000003d2a3000
bd40: 0000000000000000 0000000000000001 ffffffc030410000 ffffffc0304ebe10
bd60: ffffffc0304ebd80 ffffffc000129588 ffffffc000d1d000 000000003d2a3000
bd80: ffffffc0304ebdd0 ffffffc000082808 ffffff900001400c ffffffc0304ebe10
bda0: ffffffc000d3d000 ffffff9000014010 ffffff9000015000 ffffffc000d1bac0
bdc0: 0000000000000000 ffffffc0304ebf60 ffffffc0304ebf30 ffffffc0000855a8
bde0: ffffffc0304e8000 ffffffc0008cd680 ffffffc0304ebf30 ffffffc0000868a0
be00: 0000000020000145 ffffffc000beea80 0000000000000000 dfffff9000000000
be20: 1ffffff80609d000 0000000000000000 0000000000000000 dfffff9000000000
be40: ffffff880609d7c0 ffffffc03dfc2ce8 ffffffc0304e07c0 ffffffc0304ebe70
be60: 0000000000000760 0000000000000007 0000000000000007 0000000000000010
be80: ffffffffffffffff 000000200105a588 ffffffc0000cca78 0000002000f13010
bea0: 0000007fdaadac40 ffffffc0304e8000 ffffffc0008cd680 ffffffc000d3a000
bec0: ffffffc0304e801c 0000000000000000 ffffffc000d1bac0 0000000000000000
bee0: ffffffc0304ebf60 ffffffc000d3a000 0000000000000001 ffffffc0304ebf30
bf00: ffffffc00008689c ffffffc0304ebf30 ffffffc0000868a0 0000000020000145
bf20: 00000000000001c0 ffffffc00013b110 ffffffc0304ebf40 ffffffc00011c180
bf40: ffffffc0304ebf60 ffffffc00011c460 ffffffc0304e8000 ffffffc00011c36c
bf60: ffffffc0304ebfc0 ffffffc00009097c ffffffc0008bc480 0000000000000001
bf80: 0000000000000001 ffffffc0304e0000 0000000000000000 0000000000000000
bfa0: 0000000042011000 0000000042014000 ffffffc000082b30 0000000000000000
bfc0: 0000000000000000 0000000041082b1c 0000000000000000 0000000000000e11
bfe0: ffffffc000fc8f60 0000000000000000 ffffffffecfff7ff fe6effdefffdffff
Call trace:
[<ffffffc00013e7e4>] rcu_check_callbacks+0x18c/0xd88
[<ffffffc00014449c>] update_process_times+0x44/0x80
[<ffffffc0001596d4>] tick_sched_handle.isra.6+0x34/0x98
[<ffffffc000159790>] tick_sched_timer+0x58/0xa8
[<ffffffc00014550c>] __hrtimer_run_queues+0x16c/0x228
[<ffffffc0001459d0>] hrtimer_interrupt+0xd8/0x250
[<ffffffc0006e77e8>] arch_timer_handler_virt+0x40/0x50
[<ffffffc00012fb40>] handle_percpu_devid_irq+0xc8/0xf8
[<ffffffc000129148>] generic_handle_irq+0x38/0x50
[<ffffffc000129588>] __handle_domain_irq+0x78/0xe8
[<ffffffc000082808>] gic_handle_irq+0x58/0xa8
Exception stack(0xffffffc0304ebde0 to 0xffffffc0304ebf00)
bde0: ffffffc0304e8000 ffffffc0008cd680 ffffffc0304ebf30 ffffffc0000868a0
be00: 0000000020000145 ffffffc000beea80 0000000000000000 dfffff9000000000
be20: 1ffffff80609d000 0000000000000000 0000000000000000 dfffff9000000000
be40: ffffff880609d7c0 ffffffc03dfc2ce8 ffffffc0304e07c0 ffffffc0304ebe70
be60: 0000000000000760 0000000000000007 0000000000000007 0000000000000010
be80: ffffffffffffffff 000000200105a588 ffffffc0000cca78 0000002000f13010
bea0: 0000007fdaadac40 ffffffc0304e8000 ffffffc0008cd680 ffffffc000d3a000
bec0: ffffffc0304e801c 0000000000000000 ffffffc000d1bac0 0000000000000000
bee0: ffffffc0304ebf60 ffffffc000d3a000 0000000000000001 ffffffc0304ebf30
[<ffffffc0000855a8>] el1_irq+0x68/0xd8
[<ffffffc00011c180>] default_idle_call+0x28/0x48
[<ffffffc00011c460>] cpu_startup_entry+0x240/0x290
[<ffffffc00009097c>] secondary_start_kernel+0x17c/0x1a8
[<0000000041082b1c>] 0x41082b1c
Code: f9007b01 9403686c b94b1320 35000500 (910c4396)
---[ end trace b51132bc9ccfd874 ]---
Kernel panic - not syncing: Fatal exception in interrupt
CPU3: stopping
CPU: 3 PID: 0 Comm: swapper/3 Tainted: G      D         4.4.0-rc8 #5
Hardware name: Pine64+ (DT)
Call trace:
[<ffffffc00008ad58>] dump_backtrace+0x0/0x1c8
[<ffffffc00008af34>] show_stack+0x14/0x20
[<ffffffc000473e00>] dump_stack+0xb8/0x110
[<ffffffc000090f4c>] handle_IPI+0x184/0x190
[<ffffffc00008283c>] gic_handle_irq+0x8c/0xa8
Exception stack(0xffffffc0304f3de0 to 0xffffffc0304f3f00)
3de0: ffffffc0304f0000 ffffffc0008cd680 ffffffc0304f3f30 ffffffc0000868a0
3e00: 0000000020000145 ffffffc00013e1c4 0000000000000000 dfffff9000000000
3e20: 1ffffff80609e000 0000000000000000 0000000000000000 0000000000000018
3e40: 0006ea0ffa0e8300 ffffffc03dfe0ce8 ffffffc0304e1340 ffffffc0304f3e70
3e60: 0000000000000760 0000000000000000 0000000000000000 0000000000000000
3e80: 0000000000000000 0024f4fe8e7ca2b2 ffffffc0002513b0 0000007f7af61f90
3ea0: 0000007fc7f0c5f0 ffffffc0304f0000 ffffffc0008cd680 ffffffc000d3a000
3ec0: ffffffc0304f001c 0000000000000000 ffffffc000d1bac0 0000000000000000
3ee0: ffffffc0304f3f60 ffffffc000d3a000 0000000000000003 ffffffc0304f3f30
[<ffffffc0000855a8>] el1_irq+0x68/0xd8
[<ffffffc00011c180>] default_idle_call+0x28/0x48
[<ffffffc00011c460>] cpu_startup_entry+0x240/0x290
[<ffffffc00009097c>] secondary_start_kernel+0x17c/0x1a8
[<0000000041082b1c>] 0x41082b1c
CPU2: stopping
CPU: 2 PID: 0 Comm: swapper/2 Tainted: G      D         4.4.0-rc8 #5
Hardware name: Pine64+ (DT)
Call trace:
[<ffffffc00008ad58>] dump_backtrace+0x0/0x1c8
[<ffffffc00008af34>] show_stack+0x14/0x20
[<ffffffc000473e00>] dump_stack+0xb8/0x110
[<ffffffc000090f4c>] handle_IPI+0x184/0x190
[<ffffffc00008283c>] gic_handle_irq+0x8c/0xa8
Exception stack(0xffffffc0304efde0 to 0xffffffc0304eff00)
fde0: ffffffc0304ec000 ffffffc0008cd680 ffffffc0304eff30 ffffffc0000868a0
fe00: 0000000020000145 ffffffc00013e1c4 0000000000000000 dfffff9000000000
fe20: 1ffffff80609d800 0000000000000000 0000000000000000 0000000000000018
fe40: 0006ea0ffa0e8300 ffffffc03dfd1ce8 ffffffc0304e7ac0 ffffffc0304efe70
fe60: 0000000000000760 0000000000000002 000000000000000d 6d6f682f636d6d2f
fe80: 75746e7562752f65 000000201feb7588 ffffffc000236808 000000201fdd6d4c
fea0: 0000007ff3cb5db0 ffffffc0304ec000 ffffffc0008cd680 ffffffc000d3a000
fec0: ffffffc0304ec01c 0000000000000000 ffffffc000d1bac0 0000000000000000
fee0: ffffffc0304eff60 ffffffc000d3a000 0000000000000002 ffffffc0304eff30
[<ffffffc0000855a8>] el1_irq+0x68/0xd8
[<ffffffc00011c180>] default_idle_call+0x28/0x48
[<ffffffc00011c460>] cpu_startup_entry+0x240/0x290
[<ffffffc00009097c>] secondary_start_kernel+0x17c/0x1a8
[<0000000041082b1c>] 0x41082b1c
CPU0: stopping
CPU: 0 PID: 0 Comm: swapper/0 Tainted: G      D         4.4.0-rc8 #5
Hardware name: Pine64+ (DT)
Call trace:
[<ffffffc00008ad58>] dump_backtrace+0x0/0x1c8
[<ffffffc00008af34>] show_stack+0x14/0x20
[<ffffffc000473e00>] dump_stack+0xb8/0x110
[<ffffffc000090f4c>] handle_IPI+0x184/0x190
[<ffffffc00008283c>] gic_handle_irq+0x8c/0xa8
Exception stack(0xffffffc000d37d30 to 0xffffffc000d37e50)
7d20:                                   ffffffc000d34000 ffffffc0008cd680
7d40: ffffffc000d37e80 ffffffc0000868a0 0000000020000145 ffffffc000bebab0
7d60: 0000000000000000 dfffff9000000000 1ffffff8001a6800 0000000000000000
7d80: 0000000000000000 0000000000000018 0006ea0ffa0e8300 dfffff9000000000
7da0: dfffff9000000000 ffffff88001f9ea9 1ffffff8001f9ea9 1ffffff805ff778a
7dc0: 0000000000000000 0000000000000000 0000000000000000 ffffffffffffffff
7de0: ffffffc000240668 000000000043b280 0000007ffc816110 ffffffc000d34000
7e00: ffffffc0008cd680 ffffffc000d3a000 ffffffc000d3401c 0000000000000000
7e20: ffffffc000d1bac0 0000000000000000 ffffffc000d37eb0 ffffffc000d3a000
7e40: 0000000000000000 ffffffc000d37e80
[<ffffffc0000855a8>] el1_irq+0x68/0xd8
[<ffffffc00011c180>] default_idle_call+0x28/0x48
[<ffffffc00011c460>] cpu_startup_entry+0x240/0x290
[<ffffffc000890004>] rest_init+0x9c/0xa8
[<ffffffc000c82b8c>] start_kernel+0x43c/0x46c
[<ffffffc0000811d8>] 0xffffffc0000811d8
---[ end Kernel panic - not syncing: Fatal exception in interrupt

[umiddelb]

swapper/0[0]: undefined instruction: pc=ffffffc00047e464
Code: 91004260 97f6698c f9400a60 b5ffff80 (aa1303e0)
Internal error: Oops - undefined instruction: 0 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.0-rc8 #5
Hardware name: Pine64+ (DT)
task: ffffffc000d432c0 ti: ffffffc000d34000 task.ti: ffffffc000d34000
PC is at rb_next+0x54/0xb0
LR is at rb_next+0x6c/0xb0
pc : [<ffffffc00047e464>] lr : [<ffffffc00047e47c>] pstate: 200001c5
sp : ffffffc000d37ab0
x29: ffffffc000d37ab0 x28: ffffffc03dfb0c00
x27: 0000000000000003 x26: 00000782b3578d31
x25: ffffffc03dfb0c08 x24: ffffffc03dfb0c04
x23: 0000000000000000 x22: 0000000000000000
x21: ffffffc02fc06ac8 x20: ffffffc02fc06ac8
x19: ffffffc02fc06ac8 x18: 0000007fd0e72a70
x17: 0000007fa5eaa580 x16: ffffffc0000cca78
x15: 0000007fa5f8b588 x14: 0000007fa5e46a94
x13: 0000000000000000 x12: 0000000000000003
x11: 0000000000000004 x10: 1ffffff805f80d5a
x9 : ffffff8805f80d5a x8 : dfffff9000000000
x7 : ffffffc03dfb3ce8 x6 : ffffffc02fc06ad7
x5 : ffffff8805f80d5b x4 : ffffff8805f80d5b
x3 : 0000000000000000 x2 : ffffff8805f80d5b
x1 : 0000000000000008 x0 : ffffffc02fc06ac8

Process swapper/0 (pid: 0, stack limit = 0xffffffc000d34020)
Stack: (0xffffffc000d37ab0 to 0xffffffc000d38000)
7aa0:                                   ffffffc000d37ae0 ffffffc000480ca0
7ac0: ffffffc03dfb1048 ffffffc03dfb0c50 ffffffc03dfb0c58 ffffffc000480c50
7ae0: ffffffc000d37b10 ffffffc000144c2c ffffffc03dfb1048 ffffffc03dfb0c40
7b00: ffffffc03dfb0c00 0000000000000000 ffffffc000d37b50 ffffffc0001454f0
7b20: ffffffc03dfb0c00 ffffffc03dfb1048 000000000002ca45 ffffffc03dfb0c58
7b40: ffffffc03dfb0c40 ffffffc0001454c8 ffffffc000d37bd0 ffffffc0001459d0
7b60: 00000782b3578d31 0000000000000003 ffffffc03dfb0c1e 7fffffffffffffff
7b80: ffffffc03dfb0c20 ffffffc03dfb0c18 ffffffc03dfb0ca8 ffffffc03dfb0ce8
7ba0: ffffffc03dfb0d28 ffffffc03dfb0c00 ffffffc03dfb0ca8 ffffffc000fbdc7b
7bc0: ffffffc03dfb0c48 00000782b3578d31 ffffffc000d37c40 ffffffc0006e77e8
7be0: ffffffc03dfb7200 ffffffc000d1ba38 000000003d294000 ffffffc000df6700
7c00: ffffffc030418500 ffffffc03dfb7200 0000000000000003 000000003d294000
7c20: ffffffc000d3a000 0000000000000000 00000782b3578d31 ffffffc03dfb0c34
7c40: ffffffc000d37c60 ffffffc00012fb40 ffffffc030404500 ffffffc00012fb30
7c60: ffffffc000d37cb0 ffffffc000129148 ffffffc030404500 ffffffc000d1ddf8
7c80: 0000000000000000 000000003d294000 0000000000000000 0000000000000001
7ca0: ffffffc030410000 ffffffc000d37d60 ffffffc000d37cd0 ffffffc000129588
7cc0: ffffffc000d1d000 000000003d294000 ffffffc000d37d20 ffffffc000082808
7ce0: ffffff900001400c ffffffc000d37d60 ffffffc000d3d000 ffffff9000014010
7d00: ffffff9000015000 ffffffc000d1bac0 0000000000000000 ffffffc000d37eb0
7d20: ffffffc000d37e80 ffffffc0000855a8 ffffffc000d34000 ffffffc0008cd680
7d40: ffffffc000d37e80 ffffffc0000868a0 0000000020000145 ffffffc0008d40e0
7d60: 0000000000000000 dfffff9000000000 1ffffff8001a6800 0000000000000000
7d80: 0000000000000000 0000000000000018 001fb5bc4a221100 ffffffc03dfb3ce8
7da0: ffffffc000d43a80 ffffffc000d37dc0 0000000000000760 0000000000000004
7dc0: 0000000000000003 0000000000000000 0000007fa5e46a94 0000007fa5f8b588
7de0: ffffffc0000cca78 0000007fa5eaa580 0000007fd0e72a70 ffffffc000d34000
7e00: ffffffc0008cd680 ffffffc000d3a000 ffffffc000d3401c 0000000000000000
7e20: ffffffc000d1bac0 0000000000000000 ffffffc000d37eb0 ffffffc000d3a000
7e40: 0000000000000000 ffffffc000d37e80 ffffffc00008689c ffffffc000d37e80
7e60: ffffffc0000868a0 0000000020000145 00000000000001c0 ffffffc00013b110
7e80: ffffffc000d37e90 ffffffc00011c180 ffffffc000d37eb0 ffffffc00011c460
7ea0: ffffffc000d34000 ffffffc00011c36c ffffffc000d37f10 ffffffc000890004
7ec0: ffffffc000d34000 ffffffc03048f300 ffffffc000fc8000 1ffffff8001a6ff2
7ee0: ffffffc000fc8400 ffffffc000fc8000 ffffffc0008b6000 ffffffc03dfedf80
7f00: ffffffc000cca028 0000000000000000 ffffffc000d37f30 ffffffc000c82b8c
7f20: ffffffc0008b6000 ffffffbfbf000000 0000000000000000 ffffffc0000811d8
7f40: 0000000000000000 0000000000000e11 0000000045000000 0000000000000000
7f60: 0000000000000000 0000000041000000 0000000042011000 0000000042014000
7f80: ffffffc000081198 0000000000000000 0000000041b58ab3 ffffffc000be7c28
7fa0: ffffffc000c82750 0000000000000000 ffffffc000cca028 0000000000000000
7fc0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
7fe0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
Call trace:
[<ffffffc00047e464>] rb_next+0x54/0xb0
[<ffffffc000480ca0>] timerqueue_del+0x88/0xc0
[<ffffffc000144c2c>] __remove_hrtimer+0x64/0x100
[<ffffffc0001454f0>] __hrtimer_run_queues+0x150/0x228
[<ffffffc0001459d0>] hrtimer_interrupt+0xd8/0x250
[<ffffffc0006e77e8>] arch_timer_handler_virt+0x40/0x50
[<ffffffc00012fb40>] handle_percpu_devid_irq+0xc8/0xf8
[<ffffffc000129148>] generic_handle_irq+0x38/0x50
[<ffffffc000129588>] __handle_domain_irq+0x78/0xe8
[<ffffffc000082808>] gic_handle_irq+0x58/0xa8
Exception stack(0xffffffc000d37d30 to 0xffffffc000d37e50)
7d20:                                   ffffffc000d34000 ffffffc0008cd680
7d40: ffffffc000d37e80 ffffffc0000868a0 0000000020000145 ffffffc0008d40e0
7d60: 0000000000000000 dfffff9000000000 1ffffff8001a6800 0000000000000000
7d80: 0000000000000000 0000000000000018 001fb5bc4a221100 ffffffc03dfb3ce8
7da0: ffffffc000d43a80 ffffffc000d37dc0 0000000000000760 0000000000000004
7dc0: 0000000000000003 0000000000000000 0000007fa5e46a94 0000007fa5f8b588
7de0: ffffffc0000cca78 0000007fa5eaa580 0000007fd0e72a70 ffffffc000d34000
7e00: ffffffc0008cd680 ffffffc000d3a000 ffffffc000d3401c 0000000000000000
7e20: ffffffc000d1bac0 0000000000000000 ffffffc000d37eb0 ffffffc000d3a000
7e40: 0000000000000000 ffffffc000d37e80
[<ffffffc0000855a8>] el1_irq+0x68/0xd8
[<ffffffc00011c180>] default_idle_call+0x28/0x48
[<ffffffc00011c460>] cpu_startup_entry+0x240/0x290
[<ffffffc000890004>] rest_init+0x9c/0xa8
[<ffffffc000c82b8c>] start_kernel+0x43c/0x46c
[<ffffffc0000811d8>] 0xffffffc0000811d8
Code: 91004260 97f6698c f9400a60 b5ffff80 (aa1303e0)
---[ end trace a292b8634b25b607 ]---
Kernel panic - not syncing: Fatal exception in interrupt
CPU1: stopping
CPU: 1 PID: 0 Comm: swapper/1 Tainted: G      D         4.4.0-rc8 #5
Hardware name: Pine64+ (DT)
Call trace:
[<ffffffc00008ad58>] dump_backtrace+0x0/0x1c8
[<ffffffc00008af34>] show_stack+0x14/0x20
[<ffffffc000473e00>] dump_stack+0xb8/0x110
[<ffffffc000090f4c>] handle_IPI+0x184/0x190
[<ffffffc00008283c>] gic_handle_irq+0x8c/0xa8
Exception stack(0xffffffc0304ebde0 to 0xffffffc0304ebf00)
bde0: ffffffc0304e8000 ffffffc0008cd680 ffffffc0304ebf30 ffffffc0000868a0
be00: 0000000020000145 ffffffc030535c00 0000000000000000 dfffff9000000000
be20: 1ffffff80609d000 0000000000000000 0000000000000000 0000000000000018
be40: 001fb5bc4a221100 ffffffc03dfc2ce8 ffffffc0304e07c0 ffffffc0304ebe70
be60: 0000000000000760 0000000000000002 00000000313dfcae 000000000e98edd0
be80: 00000000904c24e6 00000000cf59cce8 0000000056380e4c 00000000431fb1fe
bea0: 00000000e4c6b74e ffffffc0304e8000 ffffffc0008cd680 ffffffc000d3a000
bec0: ffffffc0304e801c 0000000000000000 ffffffc000d1bac0 0000000000000000
bee0: ffffffc0304ebf60 ffffffc000d3a000 0000000000000001 ffffffc0304ebf30
[<ffffffc0000855a8>] el1_irq+0x68/0xd8
[<ffffffc00011c180>] default_idle_call+0x28/0x48
[<ffffffc00011c460>] cpu_startup_entry+0x240/0x290
[<ffffffc00009097c>] secondary_start_kernel+0x17c/0x1a8
[<0000000041082b1c>] 0x41082b1c
CPU3: stopping
CPU: 3 PID: 0 Comm: swapper/3 Tainted: G      D         4.4.0-rc8 #5
Hardware name: Pine64+ (DT)
Call trace:
[<ffffffc00008ad58>] dump_backtrace+0x0/0x1c8
[<ffffffc00008af34>] show_stack+0x14/0x20
[<ffffffc000473e00>] dump_stack+0xb8/0x110
[<ffffffc000090f4c>] handle_IPI+0x184/0x190
[<ffffffc00008283c>] gic_handle_irq+0x8c/0xa8
Exception stack(0xffffffc0304f3de0 to 0xffffffc0304f3f00)
3de0: ffffffc0304f0000 ffffffc0008cd680 ffffffc0304f3f30 ffffffc0000868a0
3e00: 0000000020000145 ffffffc000beea80 0000000000000000 dfffff9000000000
3e20: 1ffffff80609e000 0000000000000000 0000000000000000 dfffff9000000000
3e40: ffffff880609e7c0 ffffffc03dfe0ce8 ffffffc0304e1340 ffffffc0304f3e70
3e60: 0000000000000760 1ffffff806098f8a 0000000000000000 0000000000000000
3e80: 0000000000000000 0000007f9278a588 ffffffc000240668 000000000043b280
3ea0: 0000007fcdae1ea0 ffffffc0304f0000 ffffffc0008cd680 ffffffc000d3a000
3ec0: ffffffc0304f001c 0000000000000000 ffffffc000d1bac0 0000000000000000
3ee0: ffffffc0304f3f60 ffffffc000d3a000 0000000000000003 ffffffc0304f3f30
[<ffffffc0000855a8>] el1_irq+0x68/0xd8
[<ffffffc00011c180>] default_idle_call+0x28/0x48
[<ffffffc00011c460>] cpu_startup_entry+0x240/0x290
[<ffffffc00009097c>] secondary_start_kernel+0x17c/0x1a8
[<0000000041082b1c>] 0x41082b1c
CPU2: stopping
CPU: 2 PID: 0 Comm: swapper/2 Tainted: G      D         4.4.0-rc8 #5
Hardware name: Pine64+ (DT)
Call trace:
[<ffffffc00008ad58>] dump_backtrace+0x0/0x1c8
[<ffffffc00008af34>] show_stack+0x14/0x20
[<ffffffc000473e00>] dump_stack+0xb8/0x110
[<ffffffc000090f4c>] handle_IPI+0x184/0x190
[<ffffffc00008283c>] gic_handle_irq+0x8c/0xa8
Exception stack(0xffffffc0304efde0 to 0xffffffc0304eff00)
fde0: ffffffc0304ec000 ffffffc0008cd680 ffffffc0304eff30 ffffffc0000868a0
fe00: 0000000020000145 ffffffc030535c00 0000000000000000 dfffff9000000000
fe20: 1ffffff80609d800 0000000000000000 0000000000000000 0000000000000018
fe40: 001fb5bc4a221100 0000000000000000 ffffffc0304e7ac0 ffffffc0304efe70
fe60: 0000000000000760 1ffffff805eea78a 0000000000000000 0000000000000000
fe80: 0000000000000000 0000007fb6fbe588 ffffffc000240668 0000007fb6f166d0
fea0: 0000007fd1d3c130 ffffffc0304ec000 ffffffc0008cd680 ffffffc000d3a000
fec0: ffffffc0304ec01c 0000000000000000 ffffffc000d1bac0 0000000000000000
fee0: ffffffc0304eff60 ffffffc000d3a000 0000000000000002 ffffffc0304eff30
[<ffffffc0000855a8>] el1_irq+0x68/0xd8
[<ffffffc00011c180>] default_idle_call+0x28/0x48
[<ffffffc00011c460>] cpu_startup_entry+0x240/0x290
[<ffffffc00009097c>] secondary_start_kernel+0x17c/0x1a8
[<0000000041082b1c>] 0x41082b1c
---[ end Kernel panic - not syncing: Fatal exception in interrupt

[umiddelb]

swapper/2[0]: undefined instruction: pc=ffffffc0006e77e4
Code: aa0103e0 97ecc4ac f9400261 aa1303e0 (d63f0020)
Internal error: Oops - undefined instruction: 0 [#1] PREEMPT SMP
Modules linked in:
CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.4.0-rc8 #5
Hardware name: Pine64+ (DT)
task: ffffffc0304e7300 ti: ffffffc0304ec000 task.ti: ffffffc0304ec000
PC is at arch_timer_handler_virt+0x3c/0x50
LR is at arch_timer_handler_virt+0x34/0x50
pc : [<ffffffc0006e77e4>] lr : [<ffffffc0006e77dc>] pstate: 200001c5
sp : ffffffc0304efcf0
x29: ffffffc0304efcf0 x28: 0000000000000002
x27: ffffffc000d3a000 x26: 000000003d2b2000
x25: 0000000000000003 x24: ffffffc03dfd5200
x23: ffffffc030418500 x22: ffffffc000df6700
x21: 000000003d2b2000 x20: ffffffc000d1ba38
x19: ffffffc03dfd5200 x18: 0000007fc0b35170
x17: 0000007fb39a46d0 x16: ffffffc000240668
x15: 0000007fb3a4c588 x14: 0000000000000000
x13: 0000000000000000 x12: 0000000000000000
x11: 1ffffff805f11f8a x10: 1ffffff8060000ed
x9 : ffffff88060000ed x8 : dfffff9000000000
x7 : ffffffc03dfd1ce8 x6 : ffffffc03000076b
x5 : ffffff88060000ee x4 : 0000000000000000
x3 : 0000000000000000 x2 : 1ffffff807bfaa40
x1 : ffffffc0001458f8 x0 : ffffffc03dfd5200

Process swapper/2 (pid: 0, stack limit = 0xffffffc0304ec020)
Stack: (0xffffffc0304efcf0 to 0xffffffc0304f0000)
fce0:                                   ffffffc0304efd10 ffffffc00012fb40
fd00: ffffffc030404500 ffffffc00012fb30 ffffffc0304efd60 ffffffc000129148
fd20: ffffffc030404500 ffffffc000d1ddf8 0000000000000000 000000003d2b2000
fd40: 0000000000000000 0000000000000001 ffffffc030410000 ffffffc0304efe10
fd60: ffffffc0304efd80 ffffffc000129588 ffffffc000d1d000 000000003d2b2000
fd80: ffffffc0304efdd0 ffffffc000082808 ffffff900001400c ffffffc0304efe10
fda0: ffffffc000d3d000 ffffff9000014010 ffffff9000015000 ffffffc000d1bac0
fdc0: 0000000000000000 ffffffc0304eff60 ffffffc0304eff30 ffffffc0000855a8
fde0: ffffffc0304ec000 ffffffc0008cd680 ffffffc0304eff30 ffffffc0000868a0
fe00: 0000000020000145 ffffffc000beea80 0000000000000000 dfffff9000000000
fe20: 1ffffff80609d800 0000000000000000 0000000000000000 dfffff9000000000
fe40: ffffff880609dfc0 ffffffc03dfd1ce8 ffffffc0304e7ac0 ffffffc0304efe70
fe60: 0000000000000760 1ffffff805f11f8a 0000000000000000 0000000000000000
fe80: 0000000000000000 0000007fb3a4c588 ffffffc000240668 0000007fb39a46d0
fea0: 0000007fc0b35170 ffffffc0304ec000 ffffffc0008cd680 ffffffc000d3a000
fec0: ffffffc0304ec01c 0000000000000000 ffffffc000d1bac0 0000000000000000
fee0: ffffffc0304eff60 ffffffc000d3a000 0000000000000002 ffffffc0304eff30
ff00: ffffffc00008689c ffffffc0304eff30 ffffffc0000868a0 0000000020000145
ff20: 00000000000001c0 ffffffc00013b110 ffffffc0304eff40 ffffffc00011c180
ff40: ffffffc0304eff60 ffffffc00011c460 ffffffc0304ec000 ffffffc00011c36c
ff60: ffffffc0304effc0 ffffffc00009097c ffffffc0008bc480 0000000000000002
ff80: 0000000000000002 ffffffc0304e7300 0000000000000000 0000000000000000
ffa0: 0000000042011000 0000000042014000 ffffffc000082b30 0000000000000000
ffc0: 0000000000000000 0000000041082b1c 0000000000000000 0000000000000e11
ffe0: ffffffc000fc8f60 0000000000000000 0000000000000000 0000000010000000
Call trace:
[<ffffffc0006e77e4>] arch_timer_handler_virt+0x3c/0x50
[<ffffffc00012fb40>] handle_percpu_devid_irq+0xc8/0xf8
[<ffffffc000129148>] generic_handle_irq+0x38/0x50
[<ffffffc000129588>] __handle_domain_irq+0x78/0xe8
[<ffffffc000082808>] gic_handle_irq+0x58/0xa8
Exception stack(0xffffffc0304efde0 to 0xffffffc0304eff00)
fde0: ffffffc0304ec000 ffffffc0008cd680 ffffffc0304eff30 ffffffc0000868a0
fe00: 0000000020000145 ffffffc000beea80 0000000000000000 dfffff9000000000
fe20: 1ffffff80609d800 0000000000000000 0000000000000000 dfffff9000000000
fe40: ffffff880609dfc0 ffffffc03dfd1ce8 ffffffc0304e7ac0 ffffffc0304efe70
fe60: 0000000000000760 1ffffff805f11f8a 0000000000000000 0000000000000000
fe80: 0000000000000000 0000007fb3a4c588 ffffffc000240668 0000007fb39a46d0
fea0: 0000007fc0b35170 ffffffc0304ec000 ffffffc0008cd680 ffffffc000d3a000
fec0: ffffffc0304ec01c 0000000000000000 ffffffc000d1bac0 0000000000000000
fee0: ffffffc0304eff60 ffffffc000d3a000 0000000000000002 ffffffc0304eff30
[<ffffffc0000855a8>] el1_irq+0x68/0xd8
[<ffffffc00011c180>] default_idle_call+0x28/0x48
[<ffffffc00011c460>] cpu_startup_entry+0x240/0x290
[<ffffffc00009097c>] secondary_start_kernel+0x17c/0x1a8
[<0000000041082b1c>] 0x41082b1c
Code: aa0103e0 97ecc4ac f9400261 aa1303e0 (d63f0020)
---[ end trace 94806241a2e24a74 ]---
Kernel panic - not syncing: Fatal exception in interrupt
CPU1: stopping
CPU: 1 PID: 0 Comm: swapper/1 Tainted: G      D         4.4.0-rc8 #5
Hardware name: Pine64+ (DT)
Call trace:
[<ffffffc00008ad58>] dump_backtrace+0x0/0x1c8
[<ffffffc00008af34>] show_stack+0x14/0x20
[<ffffffc000473e00>] dump_stack+0xb8/0x110
[<ffffffc000090f4c>] handle_IPI+0x184/0x190
[<ffffffc00008283c>] gic_handle_irq+0x8c/0xa8
Exception stack(0xffffffc0304ebde0 to 0xffffffc0304ebf00)
bde0: ffffffc0304e8000 ffffffc0008cd680 ffffffc0304ebf30 ffffffc0000868a0
be00: 0000000020000145 ffffffc0008d40e0 0000000000000000 dfffff9000000000
be20: 1ffffff80609d000 0000000000000000 0000000000000000 0000000000000018
be40: 00162c7646e78700 ffffffc03dfc2ce8 ffffffc0304e07c0 ffffffc0304ebe70
be60: 0000000000000760 0000000000000007 0000000000000008 6c61626f6c672d6e
be80: 61702d2d20313d73 0000007f9a060588 ffffffc0000ccdc8 0000007f99fb7c44
bea0: 0000007fcf9392a0 ffffffc0304e8000 ffffffc0008cd680 ffffffc000d3a000
bec0: ffffffc0304e801c 0000000000000000 ffffffc000d1bac0 0000000000000000
bee0: ffffffc0304ebf60 ffffffc000d3a000 0000000000000001 ffffffc0304ebf30
[<ffffffc0000855a8>] el1_irq+0x68/0xd8
[<ffffffc00011c180>] default_idle_call+0x28/0x48
[<ffffffc00011c460>] cpu_startup_entry+0x240/0x290
[<ffffffc00009097c>] secondary_start_kernel+0x17c/0x1a8
[<0000000041082b1c>] 0x41082b1c
CPU0: stopping
CPU: 0 PID: 0 Comm: swapper/0 Tainted: G      D         4.4.0-rc8 #5
Hardware name: Pine64+ (DT)
Call trace:
[<ffffffc00008ad58>] dump_backtrace+0x0/0x1c8
[<ffffffc00008af34>] show_stack+0x14/0x20
[<ffffffc000473e00>] dump_stack+0xb8/0x110
[<ffffffc000090f4c>] handle_IPI+0x184/0x190
[<ffffffc00008283c>] gic_handle_irq+0x8c/0xa8
Exception stack(0xffffffc000d37d30 to 0xffffffc000d37e50)
7d20:                                   ffffffc000d34000 ffffffc0008cd680
7d40: ffffffc000d37e80 ffffffc0000868a0 0000000020000145 ffffffc0008d40e0
7d60: 0000000000000000 dfffff9000000000 1ffffff8001a6800 0000000000000000
7d80: 0000000000000000 0000000000000018 000ce01746d47c00 0000000000000000
7da0: ffffffc000d43a80 ffffffc000d37dc0 0000000000000760 0000000000000004
7dc0: ffffffc02b6758e8 ffffffc02b6755f0 ffffffc02b675980 0000007f9c85d588
7de0: ffffffc0000cca78 0000007f9c694050 0000007fc7032e60 ffffffc000d34000
7e00: ffffffc0008cd680 ffffffc000d3a000 ffffffc000d3401c 0000000000000000
7e20: ffffffc000d1bac0 0000000000000000 ffffffc000d37eb0 ffffffc000d3a000
7e40: 0000000000000000 ffffffc000d37e80
[<ffffffc0000855a8>] el1_irq+0x68/0xd8
[<ffffffc00011c180>] default_idle_call+0x28/0x48
[<ffffffc00011c460>] cpu_startup_entry+0x240/0x290
[<ffffffc000890004>] rest_init+0x9c/0xa8
[<ffffffc000c82b8c>] start_kernel+0x43c/0x46c
[<ffffffc0000811d8>] 0xffffffc0000811d8
CPU3: stopping
CPU: 3 PID: 0 Comm: swapper/3 Tainted: G      D         4.4.0-rc8 #5
Hardware name: Pine64+ (DT)
Call trace:
[<ffffffc00008ad58>] dump_backtrace+0x0/0x1c8
[<ffffffc00008af34>] show_stack+0x14/0x20
[<ffffffc000473e00>] dump_stack+0xb8/0x110
[<ffffffc000090f4c>] handle_IPI+0x184/0x190
[<ffffffc00008283c>] gic_handle_irq+0x8c/0xa8
Exception stack(0xffffffc0304f3de0 to 0xffffffc0304f3f00)
3de0: ffffffc0304f0000 ffffffc0008cd680 ffffffc0304f3f30 ffffffc0000868a0
3e00: 0000000020000145 ffffffc000bebab0 0000000000000000 dfffff9000000000
3e20: 1ffffff80609e000 0000000000000000 0000000000000000 0000000000000018
3e40: 00094c9046cd2900 dfffff9000000000 dfffff9000000000 ffffff8805f80783
3e60: 1ffffff805f80783 0101010101010101 000000000000000b ffff000000000000
3e80: ffffffffffffffff 0000007fb3a4c588 ffffffc0000ccdc8 0000007fb39a3dcc
3ea0: 0000007fc0b35170 ffffffc0304f0000 ffffffc0008cd680 ffffffc000d3a000
3ec0: ffffffc0304f001c 0000000000000000 ffffffc000d1bac0 0000000000000000
3ee0: ffffffc0304f3f60 ffffffc000d3a000 0000000000000003 ffffffc0304f3f30
[<ffffffc0000855a8>] el1_irq+0x68/0xd8
[<ffffffc00011c180>] default_idle_call+0x28/0x48
[<ffffffc00011c460>] cpu_startup_entry+0x240/0x290
[<ffffffc00009097c>] secondary_start_kernel+0x17c/0x1a8
[<0000000041082b1c>] 0x41082b1c
---[ end Kernel panic - not syncing: Fatal exception in interrupt

[apritzel]

Mmmh, those triggers (bad mode and undefinded instruction) look like hardware issues to me. Either it's the CPU going mad or - more likely - the DRAM being clocked too high. There are reports from other Allwinner boards having issues with 672 MHz DRAM. Clocking it down helped, but requires a proper U-Boot to set the DRAM clock. Not sure if you can do it from Linux (technically this should be possible, I just don't know how to do this out of the box).
You could try to provide some cooling to the CPU and the DRAM and see if you can still reproduce it.
Btw: Do you have a good way to trigger this? Just putting load on it?

[umiddelb]

I'll try to cool CPU and DRAM chips. There is no straight way to reproduce it, mostly the kernel panic occured when I was compiling a kernel on the p64.

[umiddelb]

Actively cooling the board seems to help. Now I've got this one during shutdown:

==================================================================
BUG: KASAN: null-ptr-deref on address 0000000000000001
Write of size 2 by task swapper/0/0
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.0-rc8 #21
Hardware name: Pine64+ (DT)
Call trace:
[<ffffffc00008aa30>] dump_backtrace+0x0/0x164
[<ffffffc00008aba8>] show_stack+0x14/0x1c
[<ffffffc000427e30>] dump_stack+0xb0/0x104
[<ffffffc0001f83a4>] kasan_report+0x384/0x53c
[<ffffffc0001f72c8>] __asan_store2+0x6c/0x84
[<ffffffc000132cb0>] rcu_start_gp+0x7c/0x98
[<ffffffc00013390c>] rcu_process_callbacks+0x5a0/0x768
[<ffffffc0000cc0a0>] __do_softirq+0x190/0x308
[<ffffffc0000cc5cc>] irq_exit+0xd0/0x13c
[<ffffffc000120d7c>] __handle_domain_irq+0x80/0xe0
[<ffffffc0000826a0>] gic_handle_irq+0x50/0x9c
Exception stack(0xffffffc000b7bd80 to 0xffffffc000b7bea0)
bd80: ffffffc000b78000 ffffffc000870000 ffffffc000b7bed0 ffffffc000086ae0
bda0: 0000000020000145 ffffffc03dfb3d00 0000000000000000 0000000000000000
bdc0: dfffff9000000000 ffffffc0001147cc ffffff880016f000 0000000000000018
bde0: 001e477729400f00 ffffffc03dfb1197 ffffffc000b859d0 ffffffc000b7be10
be00: 0000000000000740 0000000023acb725 0000000000000018 ffffffffa9517c7a
be20: 0005131a0a000000 003b9aca00000000 ffffffc00022c298 0000007fa0165d44
be40: 0000007fdb15d7e0 ffffffc000b78000 ffffffc000870000 ffffffc000b7e000
be60: ffffffc000b7801c 0000000000000000 ffffffc000b5cac0 0000000000000000
be80: ffffffc000b5fee0 ffffffc000b7bf00 ffffffc000b7ea68 ffffffc000b7bed0
[<ffffffc0000855a8>] el1_irq+0x68/0xd8
[<ffffffc0001147d8>] default_idle_call+0x28/0x44
[<ffffffc000114abc>] cpu_startup_entry+0x248/0x298
[<ffffffc000854540>] rest_init+0x9c/0xa8
[<ffffffc000ac3b94>] start_kernel+0x42c/0x440
[<ffffffc0000811d8>] 0xffffffc0000811d8
==================================================================

[umiddelb]

I'm running the 3.10 kernel now on the pine64+ for some time. I didn't experience any of the panics mentioned above (even with passive cooling). I can see that this kernel lowers the maximum cpu frequency at a distinct temperature points (CPU Budget:update CPU 0 cpufreq max to ...).