Hi,
I am starting to use the new SOM-RK3399v2 Dev Kit with a buildroot distribution (this is Ubuntu group, i know, but there is no buildroot group yet)
I observe latency issues (> 2ms) with its default kernel (4.4.179, branch remotes/origin/nanopi4-linux-v4.4.y)
Furthermore I observe spinlock lockups (see traces below)
Can anybody give me a hint what can be the reason ?

Best regards,
mb

[ 115.958938] BUG: spinlock lockup suspected on CPU#4, sshd/515
[ 115.959489] lock: 0xffffffc0ef548088, .magic: dead4ead, .owner: swapper/0/0, .owner_cpu: 0
[ 115.960315] CPU: 4 PID: 515 Comm: sshd Not tainted 4.4.179 #2
[ 115.960844] Hardware name: FriendlyElec SOM-RK3399 (DT)
[ 115.961327] Call trace:
[ 115.961582] [<ffffff80080898c0>] dump_backtrace+0x0/0x238
[ 115.962079] [<ffffff8008089b1c>] show_stack+0x24/0x30
[ 115.962555] [<ffffff8008421adc>] dump_stack+0x9c/0xc0
[ 115.963028] [<ffffff80080f964c>] spin_dump+0x84/0xa8
[ 115.963487] [<ffffff80080f9864>] do_raw_spin_lock+0x194/0x1c8
[ 115.964021] [<ffffff8008b78250>] _raw_spin_lock_bh+0x30/0x40
[ 115.964544] [<ffffff800891be78>] lock_sock_nested+0x28/0x70
[ 115.965065] [<ffffff8008988efc>] tcp_sendmsg+0x3c/0xa78
[ 115.965549] [<ffffff80089b42dc>] inet_sendmsg+0xa4/0xd8
[ 115.966032] [<ffffff80089179b0>] sock_sendmsg+0x60/0x70
[ 115.966514] [<ffffff8008917a2c>] sock_write_iter+0x6c/0xc8
[ 115.967024] [<ffffff80081fe004>] __vfs_write+0xbc/0xf8
[ 115.967494] [<ffffff80081fe9e8>] vfs_write+0x98/0x1a8
[ 115.967966] [<ffffff80081ff59c>] SyS_write+0x54/0xb0
[ 115.968425] [<ffffff8008083730>] el0_svc_naked+0x24/0x28
[ 122.179824] INFO: rcu_sched self-detected stall on CPU
[ 122.180587] 0-...: (1 GPs behind) idle=82f/140000000000002/0 softirq=7533/7534 fqs=1
[ 122.181431] (t=21000 jiffies g=2881 c=2880 q=45)
[ 122.182134] rcu_sched kthread starved for 20995 jiffies! g2881 c2880 f0x0 s3 ->state=0x1
[ 122.182996] Task dump for CPU 0:
[ 122.183427] swapper/0 R running task 0 0 0 0x00000012
[ 122.184452] Call trace:
[ 122.184853] [<ffffff80080898c0>] dump_backtrace+0x0/0x238
[ 122.185490] [<ffffff8008089b1c>] show_stack+0x24/0x30
[ 122.186107] [<ffffff80080d374c>] sched_show_task+0x9c/0xf8
[ 122.186757] [<ffffff80080d5eb0>] dump_cpu_task+0x48/0x58
[ 122.187394] [<ffffff800810e4c4>] rcu_dump_cpu_stacks+0xa4/0xf0
[ 122.188070] [<ffffff8008112694>] rcu_check_callbacks+0x594/0x870
[ 122.188760] [<ffffff8008117df4>] update_process_times+0x3c/0x68
[ 122.189450] [<ffffff8008128860>] tick_sched_handle.isra.6+0x38/0x70
[ 122.190172] [<ffffff80081288e4>] tick_sched_timer+0x4c/0x98
[ 122.190823] [<ffffff8008118788>] __hrtimer_run_queues+0xd0/0x2c8
[ 122.191511] [<ffffff8008119050>] hrtimer_interrupt+0xa8/0x1e0
[ 122.192180] [<ffffff80088843b4>] arch_timer_handler_phys+0x3c/0x50
[ 122.192888] [<ffffff8008106bdc>] handle_percpu_devid_irq+0x84/0x188
[ 122.193612] [<ffffff8008101c14>] generic_handle_irq+0x34/0x50
[ 122.194282] [<ffffff8008101f58>] __handle_domain_irq+0x68/0xc0
[ 122.194953] [<ffffff80080816c4>] gic_handle_irq+0xc4/0x170
[ 122.195589] Exception stack(0xffffffc0f7ecc7d0 to 0xffffffc0f7ecc900)
[ 122.196303] c7c0: ffffffc0f7ecc800 0000008000000000
[ 122.197146] c7e0: ffffffc0f7ecc930 ffffff8008991694 0000000040000145 ffffffc0ef4eb400
[ 122.197993] c800: 0000000000000000 0000000000000002 0000000000000000 0000000000000038
[ 122.198837] c820: 00000000000001c0 00000000006debb1 ffffffc0f2c04a00 ffffffc0f2c04aa0
[ 122.199685] c840: ffffffc0f2c08100 ffffffc0ef4eb428 ffffffc0ef614080 ffffffc0ef614000
[ 122.200528] c860: 0000000000000000 0000000000000001 00000f4240001f40 00000ca383aac48d
[ 122.201371] c880: ffffff800811b9e8 0000007fa3df1b10 0000000000000000 0000000000004506
[ 122.202216] c8a0: 0000000000000002 ffffff80090a5000 0000000000000006 ffffffc0ef548000
[ 122.203059] c8c0: ffffffc0ef4eb400 ffffffffffffffff 000000000607ec6a 0000000000000002
[ 122.203903] c8e0: 000000001539fbd8 ffffffc0f7ecc930 ffffff80089915cc ffffffc0f7ecc930
[ 122.204759] [<ffffff8008082fb4>] el1_irq+0xb4/0x140
[ 122.205357] [<ffffff8008992898>] tcp_rcv_established+0x138/0x698
[ 122.206050] [<ffffff8008a16d98>] tcp_v6_do_rcv+0x368/0x468
[ 122.206700] [<ffffff8008a17a6c>] tcp_v6_rcv+0xb34/0xbc0
[ 122.207332] [<ffffff80089ecc9c>] ip6_input_finish+0x174/0x498
[ 122.208004] [<ffffff80089ed464>] ip6_input+0x34/0x90
[ 122.208602] [<ffffff80089ecaa0>] ip6_rcv_finish+0x48/0xd0
[ 122.209238] [<ffffff80089ed2d4>] ipv6_rcv+0x314/0x470
[ 122.209853] [<ffffff8008932f38>] __netif_receive_skb_core+0x790/0xac0
[ 122.210583] [<ffffff800893616c>] __netif_receive_skb+0x2c/0x80
[ 122.211269] [<ffffff80089361e8>] netif_receive_skb_internal+0x28/0x98
[ 122.211997] [<ffffff80089369b8>] napi_gro_receive+0xf0/0x168
[ 122.212665] [<ffffff800868aacc>] stmmac_poll+0x354/0x768
[ 122.213297] [<ffffff8008938028>] net_rx_action+0x270/0x370
[ 122.213946] [<ffffff80080818b4>] __do_softirq+0x144/0x314
[ 122.214580] [<ffffff80080a6e50>] irq_exit+0xb8/0x108
[ 122.215178] [<ffffff800808e9c8>] handle_IPI+0x200/0x2a0
[ 122.215807] [<ffffff8008081680>] gic_handle_irq+0x80/0x170
[ 122.216446] Exception stack(0xffffff80090a3d10 to 0xffffff80090a3e40)
[ 122.217161] 3d00: 0000000000002c96 0000000000000000
[ 122.218004] 3d20: 00000040eee5a000 ffffffc0f018c240 0000000000000f34 00000000006ddc50
[ 122.218847] 3d40: ffffffc0f2c04a00 ffffffc0f2c04aa0 ffffffc0f2c08100 ffffff80090a3e90
[ 122.219692] 3d60: 0000000000000a20 0000000000000000 0000000000000001 00000000fa83b2da
[ 122.220536] 3d80: 00174e2fef27a7c0 00000ca383aac48d ffffff800811b9e8 0000007fa3df1b10
[ 122.221379] 3da0: 0000000000000000 ffffffc0f7ed3240 0000000000000000 ffffffc0f1b7e200
[ 122.222224] 3dc0: ffffff80090b0290 ffffff800906f000 ffffff8008b745f4 0000000000000001
[ 122.223067] 3de0: ffffffc0f7ed3240 ffffff8008b74e54 ffffff8008b98b38 ffffff80090a3e40
[ 122.223910] 3e00: ffffff8008b78328 ffffff80090a3e40 ffffff8008b7832c 0000000060000145
[ 122.224755] 3e20: ffffff80090a3e40 ffffff8008b78328 ffffffffffffffff ffffff8008b78320
[ 122.225609] [<ffffff8008082fb4>] el1_irq+0xb4/0x140
[ 122.226207] [<ffffff8008b7832c>] _raw_spin_unlock_irq+0x24/0x30
[ 122.226898] [<ffffff80080cc2b8>] finish_task_switch+0x78/0x1c8
[ 122.227584] [<ffffff8008b745f4>] __schedule+0x234/0x6e0
[ 122.228214] [<ffffff8008b74e54>] schedule_idle+0x2c/0x60
[ 122.228847] [<ffffff80080f07ac>] cpu_startup_entry+0x11c/0x318
[ 122.229530] [<ffffff8008b7356c>] rest_init+0x74/0x80
[ 122.230127] [<ffffff8008f90c04>] start_kernel+0x40c/0x420
[ 122.230768] [<ffffff8008f901c4>] __primary_switched+0x30/0x6c
[ 122.231763] hrtimer: interrupt took 52232250 ns
[ 128.130600] NMI watchdog: BUG: soft lockup - CPU#4 stuck for 23s! [sshd:515]
[ 128.131246] Modules linked in:[ 128.131516] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [swapper/0:0]
[ 128.131557] Modules linked in: snd_seq_midi snd_seq_midi_event joydev bcmdhd uio_pdrv_genirq uio snd_usb_audio snd_hwdep snd_usbmidi_lib snd_rawmidi
[ 128.132007]
[ 128.132060] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.179 #2
[ 128.132094] Hardware name: FriendlyElec SOM-RK3399 (DT)
[ 128.132134] task: ffffff80090b0290 task.stack: ffffff80090a0000
[ 128.132194] PC is at bictcp_cong_avoid+0x0/0x378
[ 128.132247] LR is at tcp_ack+0xa70/0x10b8
[ 128.132285] pc : [<ffffff80089cf818>] lr : [<ffffff8008991820>] pstate: 00000145
[ 128.132318] sp : ffffffc0f7ecc930
[ 128.132355] x29: ffffffc0f7ecc930 x28: 000000001539fbd8
[ 128.132463] x27: 0000000000000002 x26: 000000000607ec6a
[ 128.132569] x25: ffffffffffffffff x24: ffffffc0ef4eb400
[ 128.132673] x23: ffffffc0ef548000 x22: 0000000000000006
[ 128.132780] x21: ffffff80090a5000 x20: 0000000000000001
[ 128.132885] x19: 0000000000000001 x18: 0000000000000000
[ 128.132989] x17: 0000007fa3df1b10 x16: ffffff800811b9e8
[ 128.133098] x15: 00000ca383aac48d x14: 00000f4240001f40
[ 128.133205] x13: 0000000000000001 x12: 0000000000000000
[ 128.133309] x11: ffffffc0ef614000 x10: ffffffc0ef614080
[ 128.133416] x9 : ffffffc0ef4eb428 x8 : ffffffc0f2c08100
[ 128.133520] x7 : ffffffc0f2c04aa0 x6 : ffffffc0f2c04a00
[ 128.133625] x5 : 00000000006debb1 x4 : 00000000000001c0
[ 128.133734] x3 : ffffff80089cf818 x2 : 0000000000000002
[ 128.133838] x1 : 000000001539fbd8 x0 : ffffffc0ef548000
[ 128.133943]
[ 128.133943] PC: 0xffffff80089cf798:
[ 128.133979] f798 912b2000 b9000422 b9400400 1b027c00 b9000822 52800043 f9400bf3 530a7c00
[ 128.134416] f7b8 6b03001f 1a832000 a8c27bfd d65f03c0 b9400480 11100003 1b027c63 530b7c63
[ 128.134847] f7d8 b9000423 17fffff2 a9be7bfd 910003fd f9000bf3 aa0003f3 aa1e03e0 97db03d7
[ 128.135277] f7f8 b9457a60 b946fe61 f9400bf3 6b00003f 1a802020 a8c27bfd d65f03c0 d503201f
[ 128.135708] f818 a9bc7bfd 910003fd a90153f3 a9025bf5 a90363f7 aa0003f4 2a0103f3 aa1e03e0
[ 128.136138] f838 2a0203f7 97db03c5 b946fa80 b946fe96 6b16001f 54000d29 b946c280 6b0006df
[ 128.136570] f858 54000c02 d00036e0 b94b5000 34000080 b945a680 4b130013 37f817b3 2a1703e1
[ 128.137000] f878 aa1403e0 97ff4023 2a0003f7 34000aa0 9115c293 b9402660 b946fe96 d00036a1
[ 128.137432]
[ 128.137432] LR: 0xffffff80089917a0:
[ 128.137470] 17a0 4b010340 b940c7a1 7100001f 72a00403 4b010101 7a43c022 540025c8 2a0003e1
[ 128.137903] 17c0 f90053a1 52800283 b10006df 0a030363 54ffeae1 aa1903f6 17ffff55 d503201f
[ 128.138335] 17e0 900038e0 b946cee1 b947d800 6b00003f 52800680 54000f29 6a00027f 1a9f07f3
[ 128.138767] 1800 2a1303f4 34fff5d3 f94292e3 aa1703e0 2a1b03e2 2a1c03e1 f9401863 d63f0060
[ 128.139197] 1820 f940e2a0 b9070ee0 17ffffa5 d503201f 395bb2e0 36001920 b946eae0 340018e0
[ 128.139630] 1840 f90053b6 52800281 6a01037f 54ffeb20 f940e2a1 b9009ba4 4b000020 97de09fb
[ 128.140063] 1860 2a0003f6 aa1603e1 aa1703e0 97ffe3a1 aa1603e1 aa1703e0 97ffe462 aa1703e0
[ 128.140493] 1880 97ffe4c8 3914eeff b9409ba4 f94406e0 b4002200 b94566e0 35002340 395bb2e0
[ 128.140928]
[ 128.140928] SP: 0xffffffc0f7ecc8b0:
[ 128.140965] c8b0 00000006 00000000 ef548000 ffffffc0 ef4eb400 ffffffc0 ffffffff ffffffff
[ 128.141396] c8d0 0607ec6a 00000000 00000002 00000000 1539fbd8 00000000 f7ecc930 ffffffc0
[ 128.141826] c8f0 08991820 ffffff80 f7ecc930 ffffffc0 089cf818 ffffff80 00000145 00000000
[ 128.142260] c910 00004502 00000000 00000002 00000000 00000000 00000080 00003ff3 00000000
[ 128.142691] c930 f7ecca00 ffffffc0 08992898 ffffff80 ef548000 ffffffc0 f00ab200 ffffffc0
[ 128.143121] c950 f0cfd9b8 ffffffc0 00000014 00000000 00000000 00000000 f0158d80 ffffffc0
[ 128.143555] c970 f00ab23c ffffffc0 ef548000 ffffffc0 00000001 00000000 f2254900 ffffffc0
[ 128.143986] c990 00000000 00000000 ef4ebe28 ffffffc0 08b9b038 00000001 00000001 ffffff80
[ 128.144421]
[ 128.144421] X0: 0xffffffc0ef547f80:
[ 128.144457] 7f80 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 128.144887] 7fa0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 128.145316] 7fc0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 128.145749] 7fe0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 128.146182] 8000 0600007f 0600007f 0f7a86ce 001646d8 6101000a 00000002 ef680018 ffffffc0
[ 128.146618] 8020 f1b29028 ffffffc0 0918c1e8 ffffff80 0917e7c0 ffffff80 000080fe 00000000
[ 128.147052] 8040 d97b2914 d0299f3c 000080fe 00000000 34123412 02003412 00000000 00000000
[ 128.147484] 8060 00004308 00000000 00000d9d 00000000 f2283670 ffffffc0 ffffffff 00000000
[ 128.147924]
[ 128.147924] X3: 0xffffff80089cf798:
[ 128.147958] f798 912b2000 b9000422 b9400400 1b027c00 b9000822 52800043 f9400bf3 530a7c00
[ 128.148392] f7b8 6b03001f 1a832000 a8c27bfd d65f03c0 b9400480 11100003 1b027c63 530b7c63
[ 128.148826] f7d8 b9000423 17fffff2 a9be7bfd 910003fd f9000bf3 aa0003f3 aa1e03e0 97db03d7
[ 128.149260] f7f8 b9457a60 b946fe61 f9400bf3 6b00003f 1a802020 a8c27bfd d65f03c0 d503201f
[ 128.149693] f818 a9bc7bfd 910003fd a90153f3 a9025bf5 a90363f7 aa0003f4 2a0103f3 aa1e03e0
[ 128.150128] f838 2a0203f7 97db03c5 b946fa80 b946fe96 6b16001f 54000d29 b946c280 6b0006df
[ 128.150563] f858 54000c02 d00036e0 b94b5000 34000080 b945a680 4b130013 37f817b3 2a1703e1
[ 128.150996] f878 aa1403e0 97ff4023 2a0003f7 34000aa0 9115c293 b9402660 b946fe96 d00036a1
[ 128.151437]
[ 128.151437] X6: 0xffffffc0f2c04980:
[ 128.151472] 4980 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
[ 128.151907] 49a0 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
[ 128.152345] 49c0 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
[ 128.152776] 49e0 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
[ 128.153208] 4a00 00000000 00000000 f2c08100 ffffffc0 00020002 dead4ead ffffffff 00000000
[ 128.153642] 4a20 ffffffff ffffffff 00010001 00000000 00000162 00000000 00000000 00000000
[ 128.154074] 4a40 f2c02440 ffffffc0 f2c02440 ffffffc0 f01c8c80 ffffffc0 f01c8c80 ffffffc0
[ 128.154508] 4a60 f2c023c0 ffffffc0 00000000 00000000 00000000 00000000 00160844 00000000
[ 128.154950]
[ 128.154950] X7: 0xffffffc0f2c04a20:
[ 128.154985] 4a20 ffffffff ffffffff 00010001 00000000 00000162 00000000 00000000 00000000
[ 128.155420] 4a40 f2c02440 ffffffc0 f2c02440 ffffffc0 f01c89c0 ffffffc0 f01c89c0 ffffffc0
[ 128.155858] 4a60 f2c023c0 ffffffc0 00000000 00000000 00000000 00000000 0015fc58 00000000
[ 128.156290] 4a80 0123e77b 00000000 01231f2b 00000000 00000000 00000000 00000000 00000000
[ 128.156724] 4aa0 00000000 00000000 0123e86d 00000000 00000000 00000000 00000000 00000000
[ 128.157159] 4ac0 d6c37375 0000001d 00000000 00000000 00000000 00000000 f2c04ad8 ffffffc0
[ 128.157592] 4ae0 f2c04ad8 ffffffc0 00000000 00000000 f2c04af0 ffffffc0 f2c04af0 ffffffc0
[ 128.158028] 4b00 0815dad8 ffffff80 00000000 00000000 00020002 dead4ead ffffffff 00000000
[ 128.158463]
[ 128.158463] X8: 0xffffffc0f2c08080:
[ 128.158498] 8080 08153c38 ffffff80 00000000 00000000 00000000 00000000 0815d790 ffffff80
[ 128.158931] 80a0 00000000 dead4ead ffffffff 00000000 ffffffff ffffffff f2c080b8 ffffffc0
[ 128.159367] 80c0 f2c080b8 ffffffc0 00000000 00000000 00000000 00000000 00000000 00000000
[ 128.159802] 80e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 128.160236] 8100 00000001 00000006 00000000 00000000 0000003f 00000000 09265908 ffffff80
[ 128.160666] 8120 00000001 00000000 00000000 dead4ead ffffffff 00000000 ffffffff ffffffff
[ 128.161098] 8140 f2c08140 ffffffc0 f2c08140 ffffffc0 00000000 00000000 00000000 00000000
[ 128.161533] 8160 f2c02380 ffffffc0 0815df40 ffffff80 09112aa0 ffffff80 00000000 00000000
[ 128.161969]
[ 128.161969] X9: 0xffffffc0ef4eb3a8:
[ 128.162004] b3a8 011cdd86 00e600f4 00000374 000006c0 f1a8b800 ffffffc0 f1a8b8e6 ffffffc0
[ 128.162440] b3c8 00000900 00000001 00000001 00000000 00000000 00000000 00000000 00000000
[ 128.162873] b3e8 00000000 00000000 00000000 00000000 00000000 00000000 ef548170 ffffffc0
[ 128.163307] b408 ef548170 ffffffc0 00000000 00000000 00000000 00000000 00000000 00000000
[ 128.163741] b428 1539fbd8 1539fc9c 00000000 00000018 00000000 00000000 00000000 00000000
[ 128.164174] b448 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 128.164606] b468 00000000 00000000 00000000 00000000 00000000 00000000 000000c4 00000000
[ 128.165040] b488 00000000 00060000 00000300 00000000 00000000 00000000 00000000 00000000
[ 128.165477]
[ 128.165477] X10: 0xffffffc0ef614000:
[ 128.165512] 4000 ef49a840 ffffffc0 ef614080 ffffffc0 17500ff0 00000000 00000000 00000000
[ 128.165948] 4020 17500091 00000000 00000fdc 00000000 f1a64000 ffffffc0 00000000 00000000
[ 128.166381] 4040 ef614ec0 ffffffc0 ef614780 ffffffc0 17500ff0 00000000 00000000 00000000
[ 128.166814] 4060 17500091 00000000 00000fdc 00000000 f1a68000 ffffffc0 00000000 00000000
[ 128.167247] 4080 ef614000 ffffffc0 ef614f80 ffffffc0 17500ff0 00000000 00000000 00000000
[ 128.167679] 40a0 17500091 00000000 00000fdc 00000000 f1a65000 ffffffc0 00000000 00000000
[ 128.168111] 40c0 f020f6e0 ffffffc0 f1b979
[ 128.173396] b9a8 91100000 71000c5f 9a810000 b5fffca0 928002a1 17fffff3 910083a1 d2800202
[ 128.173830] b9c8 aa1403e0 940c118d d2800001 b5fffd80 a94153f3 aa0103e0 a8c37bfd d65f03c0
[ 128.174264] b9e8 a9bb7bfd 910003fd a90153f3 a9025bf5 f9001bf7 aa0003f3 aa0103f5 aa0203f7
[ 128.174698] ba08 aa0303f6 aa1e03e0 97fdd350 37f805b3 71003e7f 5400066c 93407e60 d0008934
[ 128.175132] ba28 8b000800 913c4281 d37cec00 f8606820 b4000580 52800a14 9b340674 f9401680
[ 128.175566] ba48 b4000680 d5384102 aa1703e0 f9400442 b1004000 fa423002 9a9f87e1 b40004e1
[ 128.176003]
[ 128.176003] X21: 0xffffff80090a4f80:
[ 128.176039] 4f80 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 128.176473] 4fa0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 128.176906] 4fc0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 128.177341] 4fe0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 128.177773] 5000 181278] 8000 0600007f 0600007f 0f7a86ce 001646d8 6101000a 00000002 ef680018 ffffffc0
[ 128.181714] 8020 f1b29028 ffffffc0 0918c1e8 ffffff80 0917e7c0 ffffff80 000080fe 00000000
[ 128.182150] 8040 d97b2914 d0299f3c 000080fe 00000000 34123412 02003412 00000000 00000000
[ 128.182582] 8060 00004308 00000000 00000d9d 00000000 f2283670 ffffffc0 ffffffff 00000000
[ 128.183021]
[ 128.183021] X24: 0xffffffc0ef4eb380:
[ 128.183057] b380 0010011c 00000000 00000000 ca579551 00000000 00000001 00000000 00000000
[ 128.183488] b3a0 00000000 00000000 011cdd86 00e600f4 00000374 000006c0 f1a8b800 ffffffc0
[ 128.183920] b3c0 f1a8b8e6 ffffffc0 00000900 00000001 00000001 00000000 00000000 00000000
[ 128.184354] b3e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 128.184786] b400 ef548170 ffffffc0 ef548170 ffffffc0 00000000 00000000 00000000 00000000
[ 128.185222] b420 00000000 00000000 1539fbd8 1539fc9c 00000000 00000018 00000000 00000000
[ 128.185653] b440 00000000c930 f7ecca00 ffffffc0 08992898 ffffff80 ef548000 ffffffc0 f00ab200 ffffffc0
[ 128.188736] c950 f0cfd9b8 ffffffc0 00000014 00000000 00000000 00000000 f0158d80 ffffffc0
[ 128.189170] c970 f00ab23c ffffffc0 ef548000 ffffffc0 00000001 00000000 f2254900 ffffffc0
[ 128.189604] c990 00000000 00000000 ef4ebe28 ffffffc0 08b9b038 00000001 00000001 ffffff80
[ 128.190038]

[ 128.264840] snd_seq_midi snd_seq_midi_event joydev bcmdhd uio_pdrv_genirq uio snd_usb_audio snd_hwdep snd_usbmidi_lib snd_rawmidi
[ 128.266186]
[ 128.266347] CPU: 4 PID: 515 Comm: sshd Tainted: G L 4.4.179 #2
[ 128.266972] Hardware name: FriendlyElec SOM-RK3399 (DT)
[ 128.267455] task: ffffffc004f41c00 task.stack: ffffffc0f19d8000
[ 128.268008] PC is at do_raw_spin_lock+0x1b8/0x1c8
[ 128.268443] LR is at do_raw_spin_lock+0x194/0x1c8
[ 128.268876] pc : [<ffffff80080f9888>] lr : [<ffffff80080f9864>] pstate: 00000145
[ 128.269549] sp : ffffffc0f19dbba0
[ 128.269861] x29: ffffffc0f19dbba0 x28: ffffffc x0 : 000000000c730c72
[ 128.277960]
[ 128.277960] PC: 0xffffff80080f9808:
[ 128.278417] 9808 88007e61 35ffff60 34fff9e0 d2800015 1400000a d503201f f9800271 885ffe61
[ 128.279381] 9828 4ac14020 35000080 11404021 88007e61 35ffff60 34fff880 d2800020 8b0002b5
[ 128.280341] 9848 940c9a76 eb1502df 54fffe81 aa1303e0 f0006721 911a4021 97ffff5a f9800271
[ 128.281302] 9868 885ffe60 11404001 88027e61 35ffffa2 4ac04001 340000c1 d50320bf d503205f
[ 128.282264] 9888 485ffe62 4a404041 35ffffa1 17ffffae a9be7bfd 910003fd f9000bf3 aa0003f3
[ 128.283225] 98a8 aa1e03e0 97fe5ba9 f9800271 885ffe60 4ac04001 35000081 11404000 88017e60
[ 128.284187] 98c8 35ffff61 7100003f 1a9f17e0 35000101 d538d082 d0007ba1 91000021 b8626822
[ 128.285148] 98e8 b9000a62 d5384101 f9000a61 f9400bf3 a8c27bfd d65f03c0 a9be7bfd 910003fd
[ 128.286109]
[ 128.286109] LR: 0xffffff80080f97e4:
[ 128.286566] 97e4 cb0002d6 8b160816 d37df2d6 b4000336 f9800271 885ffe61 4ac14020 35000080
[ 128.287526] 9804 11404021 88007 aa0003f3 aa1e03e0 97fe5ba9 f9800271 885ffe60 4ac04001 35000081 11404000
[ 128.293293] 98c4 88017e60 35ffff61 7100003f 1a9f17e0 35000101 d538d082 d0007ba1 91000021
[ 128.294256]
[ 128.294256] SP: 0xffffffc0f19dbb20:
[ 128.294713] bb20 016e3600 00000000 20000000 00000000 00000015 00000000 0000011d 00000000
[ 128.295674] bb40 00000040 00000000 08b92000 ffffff80 ef548000 ffffffc0 f19dbba0 ffffffc0
[ 128.296635] bb60 080f9864 ffffff80 f19dbba0 ffffffc0 080f9888 ffffff80 00000145 00000000
[ 128.297594] bb80 ef548088 ffffffc0 0906f000 ffffff80 00000000 00000080 080f96ec ffffff80
[ 128.298554] bba0 f19dbbd0 ffffffc0 08b78250 ffffff80 ef548088 ffffffc0 ef548088 ffffffc0
[ 128.299514] bbc0 f19dbd58 ffffffc0 72924290 00000055 f19dbbf0 ffffffc0 0891be78 ffffff80
[ 128.300476] bbe0 ef548000 ffffffc0 ef548088 ffffffc0 f19dbc10 ffffffc0 08988efc ffffff80
[ 128.301438] bc00 000001f4 00000000 f19dbd58 ffffffc0 f19dbcd0 ffffffc0 089b42dc ffffff80
[ 128.302401]
[ 128.302401] X3: 0xffff] c020 ffffff80 0871385c ffffff80 0000ff46 001d0001 00000000 0870d0f0 ffffff80
[ 128.309589] c040 0871104c ffffff80 000123a6 001d0001 00000000 0870d1a8 ffffff80 08711060
[ 128.310550]
[ 128.310550] X5: 0xffffffc0f19dbe10:
[ 128.311007] be10 00000000 00000000 00000001 ffffff80 00000000 00000000 000001f4 00000000
[ 128.311967] be30 f19dbde0 ffffffc0 00000001 00000000 f19dbe80 ffffffc0 081ff59c ffffff80
[ 128.312931] be50 f1b517c0 ffffffc0 f1b517c0 ffffffc0 72924290 00000055 000001f4 00000000
[ 128.313893] be70 20000000 00000000 081ff56c ffffff80 00000000 00000000 08083730 ffffff80
[ 128.314853] be90 00000000 00000000 eeeae000 00000040 ffffffff ffffffff b777834c 0000007f
[ 128.315813] beb0 00000065 00000000 00000000 00000000 00000003 00000000 72924290 00000055
[ 128.316772] bed0 000001f4 00000000 00000000 00000000 614d2038 20203a78 729221c0 00000055
[ 128.317733] bef0 35203a54 20202820 29383636 393a5020 00000040 00000000 20203a43 36383632
[ 128.318695]
[ 128.318695] X6: 426a0 ffffffc0 00000000 00000000
[ 128.323954] 1070 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 128.324917] 1090 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 128.325876] 10b0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 128.326836]
[ 128.326836] X7: 0xffffffc0f7f20fd0:
[ 128.327294] 0fd0 0000001e 00000000 0000001e 00000000 00001fff 00000000 090aa3e0 ffffff80
[ 128.328253] 0ff0 f19dba70 ffffffc0 091b09c1 ffffff80 f7f21040 ffffffc0 08082fb4 ffffff80
[ 128.329216] 1010 f19dba70 ffffffc0 00000000 00000080 f19dbba0 ffffffc0 080f9888 ffffff80
[ 128.330177] 1030 00000145 00000000 00000015 00000000 f19dbba0 ffffffc0 f19dba70 ffffffc0
[ 128.331137] 1050 00000000 00000000 00000000 00000000 04f426a0 ffffffc0 00000000 00000000
[ 128.332096] 1070 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 128.333056] 1090 00000000 00000000 00000000 00000000 00000000 00000000 000000000ff0 00000000 00000000 00000000
[ 128.340247] 30e0 2f700091 00000000 00000fdc 00000000 e11f7000 ffffffc0 00000000 00000000
[ 128.341207] 3100 e11f30c0 ffffffc0 e11f3140 ffffffc0 2f700ff0 00000000 00000000 00000000
[ 128.342167] 3120 2f700091 00000000 00000fdc 00000000 e11f8000 ffffffc0 00000000 00000000
[ 128.343129]
[ 128.343129] X11: 0xffffffc0e11f3000:
[ 128.343596] 3000 e11b2fc0 ffffffc0 e11f3040 ffffffc0 2f700ff0 00000000 00000000 00000000
[ 128.344556] 3020 2f700091 00000000 00000fdc 00000000 e11f4000 ffffffc0 00000000 00000000
[ 128.345517] 3040 e11f3000 ffffffc0 e11f3080 ffffffc0 2f800ff0 00000000 00000000 00000000
[ 128.346479] 3060 2f800091 00000000 00000fdc 00000000 e11f5000 ffffffc0 00000000 00000000
[ 128.347441] 3080 e11f3040 ffffffc0 e11f30c0 ffffffc0 2f700ff0 00000000 00000000 00000000
[ 128.348402] 30a0 2f700091 00000000 00000fdc 00000000 e11f6000 ffffffc0 00000000 00000000
[ 128.349364] 30c0 e11f3080 ffffffc0 e11f3100 ffffffc0 2f700ff0 00000000 0000000000000 00000fdc 00000000 e11f4000 ffffffc0 00000000 00000000
[ 128.355596] 3040 e11f3000 ffffffc0 e11f3080 ffffffc0 2f800ff0 00000000 00000000 00000000
[ 128.356557] 3060 2f800091 00000000 00000fdc 00000000 e11f5000 ffffffc0 00000000 00000000
[ 128.357517] 3080 e11f3040 ffffffc0 e11f30c0 ffffffc0 2f700ff0 00000000 00000000 00000000
[ 128.358476] 30a0 2f700091 00000000 00000fdc 00000000 e11f6000 ffffffc0 00000000 00000000
[ 128.359442]
[ 128.359442] X13: 0xffffff80091fecf7:
[ 128.359910] ecf4 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 128.360870] ed14 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 128.361829] ed34 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 128.362791] ed54 00000000 00000000 00000000 00000000 00000000 00000001 00000000 30303020
[ 128.363751] ed74 332e3832 35373332 65205d31 20343764 332e3832 34343935 58205d32 203a3331
[ 128.364710] ed94 66667830 66666666 39303038 6365663* ******** ******** ******** ********
[ 128.371932] ed4c ******** ******** ******** ******** ******** ******** ******** ********
[ 128.372899] ed6c ******** ******** ******** ******** ******** ******** ******** ********
[ 128.373866] ed8c ******** ******** ******** ******** ******** ******** ******** ********
[ 128.374833] edac ******** ******** ******** ******** ******** ******** ******** ********
[ 128.375801] edcc ******** ******** ******** ******** ******** ******** ******** ********
[ 128.376768] edec ******** ******** ******** ******** ******** ******** ******** ********
[ 128.377743]
[ 128.377743] X16: 0xffffff80081ff4c8:
[ 128.378213] f4c8 f27ef414 540003a0 910103a3 f9404e84 aa1503e1 aa1603e2 aa1403e0 f81f8c64
[ 128.379175] f4e8 97fffcca aa0003f5 b7f80060 f9401fa0 f9004e80 370800f3 37000133 aa1503e0
[ 128.380135] f508 a94153f3 a9425bf5 a8c47bfd d65f03c0 91016280 9425dc05 3607ff33 aa1403e0
[ 128.381096] f528 94000404 aa1503e0 a94153f3 a9425bf5 a8c47bfd d65f03c0 9286ce 001646d8 6101000a 00000002 ef680018 ffffffc0 f1b29028 ffffffc0
[ 128.387330] 8028 0918c1e8 ffffff80 0917e7c0 ffffff80 000080fe 00000000 d97b2914 d0299f3c
[ 128.388289] 8048 000080fe 00000000 34123412 02003412 00000000 00000000 00004308 00000000
[ 128.389252] 8068 00000d9d 00000000 f2283670 ffffffc0 ffffffff 00000000 00000004 00000000
[ 128.390213] 8088 0c740c72 dead4ead 00000000 00000000 090b0290 ffffff80 00000000 00000000
[ 128.391173] 80a8 00000000 dead4ead ffffffff 00000000 ffffffff ffffffff ef5480c0 ffffffc0
[ 128.392132] 80c8 ef5480c0 ffffffc0 ef5480d0 ffffffc0 ef5480d0 ffffffc0 00000000 00000000
[ 128.393092] 80e8 00000000 dead4ead ffffffff 00000000 ffffffff ffffffff 00000000 00000000
[ 128.394051]
[ 128.394051] X20: 0xffffff800906ef80:
[ 128.394521] ef80 ******** ******** ******** ******** ******** ******** ******** ********
[ 128.395490] efa0 ******** ******** ******** ******** ******** ******** ******** ********
[ 128.396462] efc0 ******** ******** ********0 00000000 00000000 00000000 00000000 00000000 00000000
[ 128.403697] 1fa0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 128.404657] 1fc0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 128.405618] 1fe0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 128.406580] 2000 0824f840 ffffff80 08250280 ffffff80 082508f0 ffffff80 08250938 ffffff80
[ 128.407540] 2020 08250ab8 ffffff80 08226fe8 ffffff80 08227050 ffffff80 082270b8 ffffff80
[ 128.408500] 2040 08227178 ffffff80 082271c8 ffffff80 08227218 ffffff80 082272a0 ffffff80
[ 128.409463] 2060 082272e8 ffffff80 08227330 ffffff80 082273a8 ffffff80 082273e8 ffffff80
[ 128.410425]
[ 128.410425] X28: 0xffffffc0ef547f80:
[ 128.410892] 7f80 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 128.411855] 7fa0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 128.412814] 7fc0 00000000 00000000 00000000 00000000 00c0 ffffffff 00000000
[ 128.418580]
[ 128.418580] X29: 0xffffffc0f19dbb20:
[ 128.419049] bb20 016e3600 00000000 20000000 00000000 00000015 00000000 0000011d 00000000
[ 128.420010] bb40 00000040 00000000 08b92000 ffffff80 ef548000 ffffffc0 f19dbba0 ffffffc0
[ 128.420968] bb60 080f9864 ffffff80 f19dbba0 ffffffc0 080f9888 ffffff80 00000145 00000000
[ 128.421932] bb80 ef548088 ffffffc0 0906f000 ffffff80 00000000 00000080 080f96ec ffffff80
[ 128.422892] bba0 f19dbbd0 ffffffc0 08b78250 ffffff80 ef548088 ffffffc0 ef548088 ffffffc0
[ 128.423852] bbc0 f19dbd58 ffffffc0 72924290 00000055 f19dbbf0 ffffffc0 0891be78 ffffff80
[ 128.424813] bbe0 ef548000 ffffffc0 ef548088 ffffffc0 f19dbc10 ffffffc0 08988efc ffffff80
[ 128.425772] bc00 000001f4 00000000 f19dbd58 ffffffc0 f19dbcd0 ffffffc0 089b42dc ffffff80
[ 128.426735]
[ 185.185621] INFO: rcu_sched self-detected stall on CPU
[ 185.185650] INFO: rcu_sched detected stalls on CPUs/tasks:
[ 185.185655]
[ 185.185708] 0-...: (1 GPs behind) idle=82f/140000000000002/0 softirq=7533/7534 fqs=1
[ 185.185782] (t=84005 jiffies g=2881 c=2880 q=57)
[ 185.185825] rcu_sched kthread starved for 84000 jiffies! g2881 c2880 f0x0 s3 ->state=0x1
[ 185.185867] Task dump for CPU 0:
[ 185.185975] swapper/0 R running task 0 0 0 0x00000012
[ 185.186016] Call trace:
[ 185.186084] [<ffffff80080898c0>] dump_backtrace+0x0/0x238
[ 185.186138] [<ffffff8008089b1c>] show_stack+0x24/0x30
[ 185.186194] [<ffffff80080d374c>] sched_show_task+0x9c/0xf8
[ 185.186245] [<ffffff80080d5eb0>] dump_cpu_task+0x48/0x58
[ 185.186300] [<ffffff800810e4c4>] rcu_dump_cpu_stacks+0xa4/0xf0
[ 185.186354] [<ffffff8008112694>] rcu_check_callbacks+0x594/0x870
[ 185.186406] [<ffffff8008117df4>] update_process_times+0x3c/0x68
[ 185.186460] [<ffffff8008128860>] tick_sched_handle.isra.6+0x38/0x70
[ 185.186512] [<ffffff80081288e4>] tick_sched_timer+0x4c/0x98
[ 185.186562] [<ffffff8008118788>] __hrtimer_run_queues+0xd0/0x2c8
[ 185.186612] [<ffffff8008119050>] hrtimer_interrupt+0xa8/0x1e0
[ 185.186669] [<ffffff80088843b4>] arch_timer_handler_phys+0x3c/0x50
[ 185.186723] [<ffffff8008106bdc>] handle_percpu_devid_irq+0x84/0x188
[ 185.186773] [<ffffff8008101c14>] generic_handle_irq+0x34/0x50
[ 185.186824] [<ffffff8008101f58>] __handle_domain_irq+0x68/0xc0
[ 185.186874] [<ffffff80080816c4>] gic_handle_irq+0xc4/0x170
[ 185.186915] Exception stack(0xffffffc0f7ecc7d0 to 0xffffffc0f7ecc900)
[ 185.186953] c7c0: ffffffc0f7ecc800 0000008000000000
[ 185.186994] c7e0: ffffffc0f7ecc930 ffffff80089cf818 0000000000000145 ffffffc0ef4eb400
[ 185.187036] c800: ffffffc0ef548000 000000001539fbd8 0000000000000002 ffffff80089cf818
[ 185.187076] c820: 00000000000001c0 00000000006debb1 ffffffc0f2c04a00 ffffffc0f2c04aa0
[ 185.187117] c840: ffffffc0f2c08100 ffffffc0ef4eb428 ffffffc0ef614080 ffffffc0ef614000
[ 185.187157] c860: 0000000000000000 0000000000000001 00000f4240001f40 00000ca383aac48d
[ 185.187197] c880: ffffff800811b9e8 0000007fa3df1b10 0000000000000000 0000000000000001
[ 185.187237] c8a0: 0000000000000001 ffffff80090a5000 0000000000000006 ffffffc0ef548000
[ 185.187277] c8c0: ffffffc0ef4eb400 ffffffffffffffff 000000000607ec6a 0000000000000002
[ 185.187318] c8e0: 000000001539fbd8 ffffffc0f7ecc930 ffffff8008991820 ffffffc0f7ecc930
[ 185.187367] [<ffffff8008082fb4>] el1_irq+0xb4/0x140
[ 185.187425] [<ffffff8008992898>] tcp_rcv_established+0x138/0x698
[ 185.187480] [<ffffff8008a16d98>] tcp_v6_do_rcv+0x368/0x468
[ 185.187533] [<ffffff8008a17a6c>] tcp_v6_rcv+0xb34/0xbc0
[ 185.187588] [<ffffff80089ecc9c>] ip6_input_finish+0x174/0x498
[ 185.187640] [<ffffff80089ed464>] ip6_input+0x34/0x90
[ 185.187692] [<ffffff80089ecaa0>] ip6_rcv_finish+0x48/0xd0
[ 185.187744] [<ffffff80089ed2d4>] ipv6_rcv+0x314/0x470
[ 185.187797] [<ffffff8008932f38>] __netif_receive_skb_core+0x790/0xac0
[ 185.187851] [<ffffff800893616c>] __netif_receive_skb+0x2c/0x80
[ 185.187902] [<ffffff80089361e8>] netif_receive_skb_internal+0x28/0x98
[ 185.187954] [<ffffff80089369b8>] napi_gro_receive+0xf0/0x168
[ 185.188006] [<ffffff800868aacc>] stmmac_poll+0x354/0x768
[ 185.188058] [<ffffff8008938028>] net_rx_action+0x270/0x370
[ 185.188107] [<ffffff80080818b4>] __do_softirq+0x144/0x314
[ 185.188158] [<ffffff80080a6e50>] irq_exit+0xb8/0x108
[ 185.188212] [<ffffff800808e9c8>] handle_IPI+0x200/0x2a0
[ 185.188261] [<ffffff8008081680>] gic_handle_irq+0x80/0x170
[ 185.188300] Exception stack(0xffffff80090a3d10 to 0xffffff80090a3e40)
[ 185.188338] 3d00: 0000000000002c96 0000000000000000
[ 185.188378] 3d20: 00000040eee5a000 ffffffc0f018c240 0000000000000f34 00000000006ddc50
[ 185.188419] 3d40: ffffffc0f2c04a00 ffffffc0f2c04aa0 ffffffc0f2c08100 ffffff80090a3e90
[ 185.188459] 3d60: 0000000000000a20 0000000000000000 0000000000000001 00000000fa83b2da
[ 185.188499] 3d80: 00174e2fef27a7c0 00000ca383aac48d ffffff800811b9e8 0000007fa3df1b10
[ 185.188539] 3da0: 0000000000000000 ffffffc0f7ed3240 0000000000000000 ffffffc0f1b7e200
[ 185.188582] 3dc0: ffffff80090b0290 ffffff800906f000 ffffff8008b745f4 0000000000000001
[ 185.188623] 3de0: ffffffc0f7ed3240 ffffff8008b74e54 ffffff8008b98b38 ffffff80090a3e40
[ 185.188664] 3e00: ffffff8008b78328 ffffff80090a3e40 ffffff8008b7832c 0000000060000145
[ 185.188704] 3e20: ffffff80090a3e40 ffffff8008b78328 ffffffffffffffff ffffff8008b78320
[ 185.188754] [<ffffff8008082fb4>] el1_irq+0xb4/0x140
[ 185.188809] [<ffffff8008b7832c>] _raw_spin_unlock_irq+0x24/0x30
[ 185.188861] [<ffffff80080cc2b8>] finish_task_switch+0x78/0x1c8
[ 185.188912] [<ffffff8008b745f4>] __schedule+0x234/0x6e0
[ 185.188965] [<ffffff8008b74e54>] schedule_idle+0x2c/0x60
[ 185.189018] [<ffffff80080f07ac>] cpu_startup_entry+0x11c/0x318
[ 185.189067] [<ffffff8008b7356c>] rest_init+0x74/0x80
[ 185.189119] [<ffffff8008f90c04>] start_kernel+0x40c/0x420
[ 185.189175] [<ffffff8008f901c4>] __primary_switched+0x30/0x6c
[ 185.226418]
[ 185.226579] 0-...: (1 GPs behind) idle=82f/140000000000002/0 softirq=7533/7534 fqs=1
[ 185.227289] (detected by 4, t=84045 jiffies, g=2881, c=2880, q=57)
[ 185.227888] Task dump for CPU 0:
[ 185.228200] swapper/0 R running task 0 0 0 0x00000012
[ 185.228889] Call trace:
[ 185.229144] [<ffffff8008085cb4>] __switch_to+0x94/0xc8
[ 185.229613] [< (null)>] (null)
[ 185.230048] rcu_sched kthread starved for 84043 jiffies! g2881 c2880 f0x0 s3 ->state=0x1
[ 240.224336] INFO: task kworker/1:1:145 blocked for more than 120 seconds.
[ 240.225466] Tainted: G L 4.4.179 #2
[ 240.226268] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 240.227306] kworker/1:1 D ffffff8008085cb4 0 145 2 0x00000010
[ 240.228820] Workqueue: events_freezable thermal_zone_device_check
[ 240.229860] Call trace:
[ 240.230254] [<ffffff8008085cb4>] __switch_to+0x94/0xc8
[ 240.231074] [<ffffff8008b745f0>] __schedule+0x230/0x6e0
[ 240.231902] [<ffffff8008b74ad4>] schedule+0x34/0x90
[ 240.232500] [<ffffff8008b74e9c>] schedule_preempt_disabled+0x14/0x20
[ 240.233433] [<ffffff8008b763b8>] __mutex_lock_slowpath+0xa0/0x130
[ 240.234339] [<ffffff8008b76498>] mutex_lock+0x50/0x68
[ 240.235159] [<ffffff800880c01c>] thermal_zone_get_temp+0x44/0x90
[ 240.236052] [<ffffff800880de9c>] thermal_zone_device_update.part.12+0x24/0x178
[ 240.237052] [<ffffff800880e074>] thermal_zone_device_check+0x3c/0x48
[ 240.237990] [<ffffff80080bba38>] process_one_work+0x1e0/0x438
[ 240.238864] [<ffffff80080bbdb8>] worker_thread+0x128/0x4d0
[ 240.239514] [<ffffff80080c23b8>] kthread+0xd8/0xf0
[ 240.240310] [<ffffff80080836f0>] ret_from_fork+0x10/0x20