binder: 12114:12115 ioctl c0306201 20000140 returned -14 binder: 12116:12117 transaction failed 29189/-22, size 118-0 line 3013 binder: 12116:12117 ioctl c0306201 20000140 returned -14 binder: 12118:12119 transaction failed 29189/-22, size 118-0 line 3013 binder: 12118:12119 ioctl c0306201 20000140 returned -14 INFO: task init:12827 blocked for more than 140 seconds. Not tainted 4.9.141+ #23 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. init D28184 12827 1 0x00000000 ffff88016a05c740 ffff8801d80e7380 ffff8801d80e7900 ffff88016a0a5f00 ffff8801db621018 ffff88016a077738 ffffffff828075c2 0000000000000000 ffff88016a05cff0 ffffed002d40b9fd 00ff88016a05c740 ffff8801db6218f0 Call Trace: [] schedule+0x7f/0x1b0 kernel/sched/core.c:3553 [] schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3586 [] __mutex_lock_common kernel/locking/mutex.c:582 [inline] [] mutex_lock_nested+0x38d/0x900 kernel/locking/mutex.c:621 [] tty_open_by_driver drivers/tty/tty_io.c:2052 [inline] [] tty_open+0x476/0xdf0 drivers/tty/tty_io.c:2130 [] chrdev_open+0x22d/0x5c0 fs/char_dev.c:392 [] do_dentry_open+0x3ef/0xc90 fs/open.c:766 [] vfs_open+0x11c/0x210 fs/open.c:879 [] do_last fs/namei.c:3410 [inline] [] path_openat+0x542/0x2790 fs/namei.c:3534 [] do_filp_open+0x197/0x270 fs/namei.c:3568 [] do_sys_open+0x30d/0x5c0 fs/open.c:1072 [] SYSC_open fs/open.c:1090 [inline] [] SyS_open+0x2d/0x40 fs/open.c:1085 [] do_syscall_64+0x19f/0x550 arch/x86/entry/common.c:285 [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Showing all locks held in the system: 2 locks held by khungtaskd/24: #0: (rcu_read_lock){......}, at: [] check_hung_uninterruptible_tasks kernel/hung_task.c:168 [inline] #0: (rcu_read_lock){......}, at: [] watchdog+0x11c/0xa20 kernel/hung_task.c:239 #1: (tasklist_lock){.+.+..}, at: [] debug_show_all_locks+0x79/0x218 kernel/locking/lockdep.c:4336 1 lock held by rsyslogd/1896: #0: (&f->f_pos_lock){+.+.+.}, at: [] __fdget_pos+0xac/0xd0 fs/file.c:781 2 locks held by getty/2024: #0: (&tty->ldisc_sem){++++++}, at: [] ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:367 #1: (&ldata->atomic_read_lock){+.+...}, at: [] n_tty_read+0x202/0x16e0 drivers/tty/n_tty.c:2142 1 lock held by init/12827: #0: (tty_mutex){+.+.+.}, at: [] tty_open_by_driver drivers/tty/tty_io.c:2052 [inline] #0: (tty_mutex){+.+.+.}, at: [] tty_open+0x476/0xdf0 drivers/tty/tty_io.c:2130 1 lock held by init/12828: #0: (tty_mutex){+.+.+.}, at: [] tty_open_by_driver drivers/tty/tty_io.c:2052 [inline] #0: (tty_mutex){+.+.+.}, at: [] tty_open+0x476/0xdf0 drivers/tty/tty_io.c:2130 1 lock held by init/12829: #0: (tty_mutex){+.+.+.}, at: [] tty_open_by_driver drivers/tty/tty_io.c:2052 [inline] #0: (tty_mutex){+.+.+.}, at: [] tty_open+0x476/0xdf0 drivers/tty/tty_io.c:2130 1 lock held by init/12830: #0: (tty_mutex){+.+.+.}, at: [] tty_open_by_driver drivers/tty/tty_io.c:2052 [inline] #0: (tty_mutex){+.+.+.}, at: [] tty_open+0x476/0xdf0 drivers/tty/tty_io.c:2130 1 lock held by init/12831: #0: (tty_mutex){+.+.+.}, at: [] tty_open_by_driver drivers/tty/tty_io.c:2052 [inline] #0: (tty_mutex){+.+.+.}, at: [] tty_open+0x476/0xdf0 drivers/tty/tty_io.c:2130 1 lock held by init/12832: #0: (tty_mutex){+.+.+.}, at: [] tty_open_by_driver drivers/tty/tty_io.c:2052 [inline] #0: (tty_mutex){+.+.+.}, at: [] tty_open+0x476/0xdf0 drivers/tty/tty_io.c:2130 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 24 Comm: khungtaskd Not tainted 4.9.141+ #23 ffff8801d9907d08 ffffffff81b42e79 0000000000000000 0000000000000000 0000000000000000 0000000000000001 ffffffff810983b0 ffff8801d9907d40 ffffffff81b4df89 0000000000000000 0000000000000000 0000000000000003 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] nmi_cpu_backtrace.cold.0+0x48/0x87 lib/nmi_backtrace.c:99 [] nmi_trigger_cpumask_backtrace+0x12c/0x151 lib/nmi_backtrace.c:60 [] arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:37 [] trigger_all_cpu_backtrace include/linux/nmi.h:58 [inline] [] check_hung_task kernel/hung_task.c:125 [inline] [] check_hung_uninterruptible_tasks kernel/hung_task.c:182 [inline] [] watchdog+0x6ad/0xa20 kernel/hung_task.c:239 [] kthread+0x26d/0x300 kernel/kthread.c:211 [] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:373 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 4.9.141+ #23 Workqueue: events binder_deferred_funcc task: ffff8801d9c20000 task.stack: ffff8801d9c28000 RIP: 0010:[] c [] io_serial_out+0x73/0x90 drivers/tty/serial/8250/8250_port.c:420 RSP: 0018:ffff8801d9c2f6d0 EFLAGS: 00000002 RAX: 0000000000000020 RBX: 00000000000003f8 RCX: 0000000000000000 RDX: 00000000000003f8 RSI: ffffffff81d62586 RDI: ffffffff84b5bb58 RBP: ffff8801d9c2f6e8 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff84b5bb20 R13: 0000000000000020 R14: dffffc0000000000 R15: 0000000000000020 FS: 0000000000000000(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000f76fade8 CR3: 000000000301e000 CR4: 00000000001606b0 Stack: ffffffff84b5bb20c 0000000000000020c ffffffff81d648b0c ffff8801d9c2f708c ffffffff81d648fbc ffffffff841ca31bc ffffffff84b5bb20c ffff8801d9c2f748c ffffffff81d4cce9c ffffffff841ca328c ffffffff84b5bb20c ffffffff84b5bd40c Call Trace: [] serial_port_out include/linux/serial_core.h:262 [inline] [] serial8250_console_putchar+0x4b/0x60 drivers/tty/serial/8250/8250_port.c:3104 [] uart_console_write+0x59/0xf0 drivers/tty/serial/serial_core.c:1866 [] serial8250_console_write+0x528/0x820 drivers/tty/serial/8250/8250_port.c:3169 [] univ8250_console_write+0x5f/0x70 drivers/tty/serial/8250/8250_core.c:594 [] call_console_drivers.isra.0.constprop.15+0x1ad/0x360 kernel/printk/printk.c:1594 [] console_unlock+0x47f/0xb50 kernel/printk/printk.c:2454 [] vprintk_emit+0x448/0x790 kernel/printk/printk.c:1908 [] vprintk+0x28/0x30 kernel/printk/printk.c:1918 [] vprintk_default+0x1d/0x30 kernel/printk/printk.c:1919 [] vprintk_func kernel/printk/internal.h:36 [inline] [] printk+0xaf/0xd7 kernel/printk/printk.c:1980 [] binder_release_work.cold.47+0x42/0x98 drivers/android/binder.c:4382 [] binder_thread_release+0x425/0x520 drivers/android/binder.c:4573 [] binder_deferred_release drivers/android/binder.c:5179 [inline] [] binder_deferred_func+0x47e/0xdb0 drivers/android/binder.c:5262 [] process_one_work+0x831/0x15f0 kernel/workqueue.c:2092 [] worker_thread+0xd6/0x1140 kernel/workqueue.c:2226 [] kthread+0x26d/0x300 kernel/kthread.c:211 [] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:373 Code: c00 c00 c49 c8d c7c c24 c38 c48 cb8 c00 c00 c00 c00 c00 cfc cff cdf c48 c89 cfa c48 cc1 cea c03 cd3 ce3 c80 c3c c02 c00 c75 c19 c41 c03 c5c c24 c38 c44 c89 ce8 c89 cda cee c<5b> c41 c5c c41 c5d c5d cc3 ce8 c11 c0a c79 cff ceb cc0 ce8 c6a c0a c79 cff ceb ce0 c