-------------------------------------------------------------------------------
[  215.240955] Call Trace:
[  215.240955]  serial8250_console_putchar+0x2d/0x40
[  215.240956]  ? wait_for_xmitr+0xb0/0xb0
[  215.240956]  uart_console_write+0x4c/0x60
[  215.240957]  serial8250_console_write+0x10a/0x2a0
[  215.240957]  ? msg_print_text+0x80/0x100
[  215.240958]  univ8250_console_write+0x25/0x30
[  215.240958]  console_unlock+0x34b/0x4e0
[  215.240959]  con_shutdown+0x2b/0x30
[  215.240959]  release_tty+0x43/0x1d0
[  215.240959]  tty_release_struct+0x36/0x50
[  215.240960]  tty_release+0x405/0x600
[  215.240960]  __fput+0xea/0x220
[  215.240961]  ____fput+0xe/0x10
[  215.240961]  task_work_run+0x9d/0xc0
[  215.240962]  exit_to_usermode_loop+0xc0/0xd0
[  215.240962]  do_syscall_64+0x115/0x130
-------------------------------------------------------------------------------
[  215.240955] Call Trace:
[  215.207334]  <IRQ>
[...]
[  215.220887]  input_to_handler+0x56/0xf0
[  215.221836]  input_pass_values.part.6+0x118/0x130
[  215.222956]  input_handle_event+0xec/0x580
[  215.223960]  input_event+0x54/0x80
[  215.224901]  atkbd_interrupt+0x501/0x7b0
[  215.225866]  serio_interrupt+0x4c/0x90
[  215.226878]  i8042_interrupt+0x205/0x3b0
[  215.227852]  __handle_irq_event_percpu+0x44/0x1a0
[  215.228960]  handle_irq_event_percpu+0x32/0x80
[  215.230036]  handle_irq_event+0x3b/0x60
[  215.233506]  handle_edge_irq+0x7c/0x190
[  215.234470]  handle_irq+0x20/0x30
[  215.235322]  do_IRQ+0x4e/0xd0
[  215.236133]  common_interrupt+0x84/0x84
[  215.237088] RIP: 0010:__do_softirq+0x71/0x2bb
-------------------------------------------------------------------------------
 #0 [ffffaa74044f3c90] vgacon_font_set at ffffffff82b1f302
 #1 [ffffaa74044f3cd0] con_font_op at ffffffff82bf742f
 #2 [ffffaa74044f3d40] vt_ioctl at ffffffff82be9de9
 #3 [ffffaa74044f3db0] tty_ioctl at ffffffff82bdc5d6
 #4 [ffffaa74044f3e68] do_vfs_ioctl at ffffffff8288ce98
 #5 [ffffaa74044f3ef0] sys_ioctl at ffffffff8288d499
 #6 [ffffaa74044f3f30] do_syscall_64 at ffffffff82603ae3
 #7 [ffffaa74044f3f50] entry_SYSCALL_64_after_hwframe at ffffffff83000081
-------------------------------------------------------------------------------
[  143.929729] Workqueue: events console_callback
[  143.929734] Call Trace:
[  143.929756]  __schedule+0x291/0x8a0
[  143.929758]  schedule+0x2c/0x80
[  143.929765]  schedule_timeout+0x1cf/0x350
[  143.929768]  ? __switch_to_asm+0x40/0x70
[  143.929770]  ? __switch_to_asm+0x34/0x70
[  143.929772]  ? __switch_to_asm+0x40/0x70
[  143.929774]  ? __switch_to_asm+0x34/0x70
[  143.929776]  ? __switch_to_asm+0x40/0x70
[  143.929778]  ? __switch_to_asm+0x34/0x70
[  143.929781]  ? __switch_to_asm+0x40/0x70
[  143.929783]  ? __switch_to_asm+0x34/0x70
[  143.929785]  __down+0x91/0xe0
[  143.929787]  ? syscall_return_via_sysret+0x1a/0x7a
[  143.929790]  ? __switch_to_asm+0x40/0x70
[  143.929794]  down+0x41/0x50
[  143.929796]  ? down+0x41/0x50
[  143.929798]  console_lock+0x1a/0x40
[  143.929800]  console_callback+0x2b/0x170
[  143.929802]  ? __schedule+0x299/0x8a0
[  143.929806]  ? pwq_dec_nr_in_flight+0x49/0xa0
[  143.929809]  process_one_work+0x1de/0x410
[  143.929811]  worker_thread+0x32/0x410
[  143.929815]  kthread+0x121/0x140
[  143.929817]  ? process_one_work+0x410/0x410
[  143.929819]  ? kthread_create_worker_on_cpu+0x70/0x70
[  143.929821]  ret_from_fork+0x35/0x40