binder: 20235:20237 ioctl 4018620d 0 returned -22
binder: 20235:20237 ioctl 4018620d 0 returned -22
binder: 20240:20246 ioctl 4018620d 0 returned -22
binder: 20241:20248 ioctl 4018620d 0 returned -22
binder: 20239:20247 ioctl 4018620d 0 returned -22
INFO: task init:5037 blocked for more than 140 seconds.
      Not tainted 4.4.174+ #17
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
init            D ffff8800b4b37718 29280  5037      1 0x00000000
 ffff8800b4b37718 ffff8801d219c740 922720fdb324569f ffff8801d219c740
 0000000000000000 ffff8801d219d000 ffff8801db61f180 ffff8801db61f1a8
 ffff8801db61e898 ffff8801d207c740 ffff8801d219c740 ffffed0016966001
Call Trace:
 [<ffffffff82709b79>] schedule+0x99/0x1d0 kernel/sched/core.c:3355
 [<ffffffff8270a333>] schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3388
 [<ffffffff8270c492>] __mutex_lock_common kernel/locking/mutex.c:582 [inline]
 [<ffffffff8270c492>] mutex_lock_nested+0x3c2/0xb80 kernel/locking/mutex.c:621
 [<ffffffff81c8b2aa>] tty_open+0x56a/0xf50 drivers/tty/tty_io.c:2067
 [<ffffffff814a3ec0>] chrdev_open+0x230/0x630 fs/char_dev.c:388
 [<ffffffff8149154f>] do_dentry_open+0x38f/0xbd0 fs/open.c:749
 [<ffffffff81494d3b>] vfs_open+0x10b/0x210 fs/open.c:862
 [<ffffffff814c5ddf>] do_last fs/namei.c:3269 [inline]
 [<ffffffff814c5ddf>] path_openat+0x136f/0x4470 fs/namei.c:3406
 [<ffffffff814ccab1>] do_filp_open+0x1a1/0x270 fs/namei.c:3440
 [<ffffffff81495668>] do_sys_open+0x2f8/0x600 fs/open.c:1038
 [<ffffffff8149599d>] SYSC_open fs/open.c:1056 [inline]
 [<ffffffff8149599d>] SyS_open+0x2d/0x40 fs/open.c:1051
 [<ffffffff82718ba1>] entry_SYSCALL_64_fastpath+0x1e/0x9a
1 lock held by init/5037:
 #0:  (tty_mutex){+.+.+.}, at: [<ffffffff81c8b2aa>] tty_open+0x56a/0xf50 drivers/tty/tty_io.c:2067
Sending NMI to all CPUs:
NMI backtrace for cpu 0
CPU: 0 PID: 585 Comm: udevd Not tainted 4.4.174+ #17
task: ffff8801d57f2f80 task.stack: ffff8800b7050000
RIP: 0010:[<ffffffff811fdaf2>]  [<ffffffff811fdaf2>] mark_lock+0x32/0x1440 kernel/locking/lockdep.c:2900
RSP: 0018:ffff8801db607ae0  EFLAGS: 00000006
RAX: dffffc0000000000 RBX: 0000000000000002 RCX: 000000000000000c
RDX: 1ffff1003aafe71c RSI: ffff8801d57f38c0 RDI: ffff8801d57f2f80
RBP: ffff8801db607b00 R08: 0000000000000003 R09: ffff8801d57f38e0
R10: ffffffff82836880 R11: 0000000000000000 R12: ffff8801d57f2f80
R13: ffff8801d57f2f80 R14: 0000000000001000 R15: 000000000000000c
FS:  00007f14011307a0(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1401137000 CR3: 00000000b703a000 CR4: 00000000001606b0
Stack:
 ffff8801d57f2f80 ffff8801d57f38c0 0000000000000020 0000000000000000
 ffff8801db607c88 ffffffff811fffff ffffffff8148535a 0000000000000246
 ffff8801da548500 0000000000000246 ffff8801db607b50 ffffffff811ff260
Call Trace:
 <IRQ> 
d [<ffffffff811fffff>] __lock_acquire+0xa4f/0x4f50 kernel/locking/lockdep.c:3173
 [<ffffffff81205f6e>] lock_acquire+0x15e/0x450 kernel/locking/lockdep.c:3592
 [<ffffffff82717e50>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:112 [inline]
 [<ffffffff82717e50>] _raw_spin_lock_irqsave+0x50/0x70 kernel/locking/spinlock.c:159
 [<ffffffff81b0d1e9>] debug_object_active_state+0x109/0x380 lib/debugobjects.c:641
 [<ffffffff81245a73>] debug_rcu_head_unqueue kernel/rcu/rcu.h:84 [inline]
 [<ffffffff81245a73>] rcu_do_batch kernel/rcu/tree.c:2704 [inline]
 [<ffffffff81245a73>] invoke_rcu_callbacks kernel/rcu/tree.c:2973 [inline]
 [<ffffffff81245a73>] __rcu_process_callbacks kernel/rcu/tree.c:2940 [inline]
 [<ffffffff81245a73>] rcu_process_callbacks+0xa33/0x14b0 kernel/rcu/tree.c:2957
 [<ffffffff8271bb16>] __do_softirq+0x226/0xa3f kernel/softirq.c:273
 [<ffffffff810e1a8a>] invoke_softirq kernel/softirq.c:350 [inline]
 [<ffffffff810e1a8a>] irq_exit+0x10a/0x150 kernel/softirq.c:391
 [<ffffffff8271b24e>] exiting_irq arch/x86/include/asm/apic.h:652 [inline]
 [<ffffffff8271b24e>] smp_apic_timer_interrupt+0x7e/0xb0 arch/x86/kernel/apic/apic.c:926
 [<ffffffff8271a59d>] apic_timer_interrupt+0x9d/0xb0 arch/x86/entry/entry_64.S:768
 <EOI> 
d [<ffffffff81b0abec>] ? check_preemption_disabled+0x3c/0x200 lib/smp_processor_id.c:51
 [<ffffffff81b0abec>] check_preemption_disabled+0x3c/0x200 lib/smp_processor_id.c:51
 [<ffffffff81b0adcc>] debug_smp_processor_id+0x1c/0x20 lib/smp_processor_id.c:56
 [<ffffffff8123d925>] __rcu_is_watching kernel/rcu/tree.c:999 [inline]
 [<ffffffff8123d925>] rcu_is_watching+0x15/0xb0 kernel/rcu/tree.c:1013
 [<ffffffff810c8918>] rcu_read_lock include/linux/rcupdate.h:862 [inline]
 [<ffffffff810c8918>] get_mm_exe_file+0x198/0x230 kernel/fork.c:794
 [<ffffffff810ce88f>] dup_mmap kernel/fork.c:428 [inline]
 [<ffffffff810ce88f>] dup_mm kernel/fork.c:985 [inline]
 [<ffffffff810ce88f>] copy_mm kernel/fork.c:1039 [inline]
 [<ffffffff810ce88f>] copy_process+0x3cef/0x68a0 kernel/fork.c:1519
 [<ffffffff810d186e>] _do_fork+0x14e/0xdc0 kernel/fork.c:1806
 [<ffff
NMI backtrace for cpu 1
CPU: 1 PID: 20 Comm: khungtaskd Not tainted 4.4.174+ #17
task: ffff8801da6c2f80 task.stack: ffff8800001e8000
RIP: 0010:[<ffffffff8109b617>]  [<ffffffff8109b617>] _flat_send_IPI_mask arch/x86/kernel/apic/apic_flat_64.c:62 [inline]
RIP: 0010:[<ffffffff8109b617>]  [<ffffffff8109b617>] flat_send_IPI_mask+0xf7/0x1b0 arch/x86/kernel/apic/apic_flat_64.c:69
RSP: 0000:ffff8800001efc88  EFLAGS: 00000046
RAX: 0000000000000000 RBX: 0000000000000c00 RCX: 0000000000000000
RDX: 0000000000000c00 RSI: 0000000000000000 RDI: ffffffffff5fc300
RBP: ffff8800001efcb8 R08: 0000000000000018 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000246
R13: 0000000003000000 R14: ffffffff82e5f2e0 R15: 0000000000000002
FS:  0000000000000000(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007faf31545169 CR3: 00000000b2fe8000 CR4: 00000000001606b0
Stack:
 0000000000000001 ffffffff82e5f2e0 ffffffff831a6ac0 fffffbfff0634c34
 000000000001b6c0 0000000000000008 ffff8800001efcd8 ffffffff81092bee
 0000000000000008 ffffffff82924260 ffff8800001efd30 ffffffff81ab8252
Call Trace:
 [<ffffffff81092bee>] nmi_raise_cpu_backtrace+0x5e/0x80 arch/x86/kernel/apic/hw_nmi.c:33
 [<ffffffff81ab8252>] nmi_trigger_all_cpu_backtrace.cold+0xa1/0xae lib/nmi_backtrace.c:85
 [<ffffffff81092ca4>] arch_trigger_all_cpu_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
 [<ffffffff813b4762>] trigger_all_cpu_backtrace include/linux/nmi.h:44 [inline]
 [<ffffffff813b4762>] check_hung_task kernel/hung_task.c:125 [inline]
 [<ffffffff813b4762>] check_hung_uninterruptible_tasks kernel/hung_task.c:182 [inline]
 [<ffffffff813b4762>] watchdog.cold+0xd3/0xee kernel/hung_task.c:238
 [<ffffffff811342c3>] kthread+0x273/0x310 kernel/kthread.c:211
 [<ffffffff82718fc5>] ret_from_fork+0x55/0x80 arch/x86/entry/entry_64.S:537
Code: 00 c3 5f ff 80 e6 10 75 e1 41 c1 e5 18 44 89 2c 25 10 c3 5f ff 44 89 fa 09 da 80 cf 04 41 83 ff 02 0f 44 d3 89 14 25 00 c3 5f ff <41> f7 c4 00 02 00 00 75 1e 4c 89 e7 57 9d 0f 1f 44 00 00 e8 f1