Warning: Permanently added '10.128.0.253' (ECDSA) to the list of known hosts.
executing program
[   72.906938][ T1504] WARNING: CPU: 1 PID: 1504 at drivers/tty/tty_ioctl.c:319 tty_set_termios+0x7a5/0x8d0
[   72.916670][ T1504] Kernel panic - not syncing: panic_on_warn set ...
[   72.923253][ T1504] CPU: 1 PID: 1504 Comm: kworker/u5:0 Not tainted 5.2.0-rc4-next-20190612 #13
[   72.932088][ T1504] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   72.942129][ T1504] Workqueue: hci0 hci_power_on
[   72.946868][ T1504] Call Trace:
[   72.950139][ T1504]  dump_stack+0x172/0x1f0
[   72.954455][ T1504]  ? tty_set_termios+0x710/0x8d0
[   72.959374][ T1504]  panic+0x2cb/0x744
[   72.963254][ T1504]  ? __warn_printk+0xf3/0xf3
[   72.967825][ T1504]  ? tty_set_termios+0x7a5/0x8d0
[   72.972769][ T1504]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[   72.979025][ T1504]  ? __warn.cold+0x5/0x4d
[   72.983339][ T1504]  ? __warn+0xe8/0x1d0
[   72.987557][ T1504]  ? tty_set_termios+0x7a5/0x8d0
[   72.992470][ T1504]  __warn.cold+0x20/0x4d
[   72.996694][ T1504]  ? tty_set_termios+0x7a5/0x8d0
[   73.001611][ T1504]  report_bug+0x263/0x2b0
[   73.005923][ T1504]  do_error_trap+0x11b/0x200
[   73.010497][ T1504]  do_invalid_op+0x37/0x50
[   73.014894][ T1504]  ? tty_set_termios+0x7a5/0x8d0
[   73.019822][ T1504]  invalid_op+0x14/0x20
[   73.023963][ T1504] RIP: 0010:tty_set_termios+0x7a5/0x8d0
[   73.029510][ T1504] Code: 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 a3 00 00 00 45 89 a7 d0 03 00 00 e9 49 fe ff ff e8 eb b9 f8 fd <0f> 0b e9 3e f9 ff ff e8 bf bf 31 fe e9 d6 fa ff ff e8 b5 bf 31 fe
[   73.049101][ T1504] RSP: 0018:ffff8880a6727968 EFLAGS: 00010293
[   73.055152][ T1504] RAX: ffff8880a6704680 RBX: ffff8880a6727a28 RCX: ffffffff837841cd
[   73.063105][ T1504] RDX: 0000000000000000 RSI: ffffffff83784895 RDI: 0000000000000005
[   73.071082][ T1504] RBP: ffff8880a6727a50 R08: ffff8880a6704680 R09: fffffbfff167bac5
[   73.079039][ T1504] R10: fffffbfff167bac4 R11: 0000000000000003 R12: ffff8880a6727a90
[   73.086990][ T1504] R13: 0000000000010004 R14: 1ffff11014ce4f4c R15: ffff8880a99353c0
[   73.094958][ T1504]  ? tty_set_termios+0xdd/0x8d0
[   73.099785][ T1504]  ? tty_set_termios+0x7a5/0x8d0
[   73.104725][ T1504]  ? tty_set_termios+0x7a5/0x8d0
[   73.109645][ T1504]  ? hci_dev_do_open+0xa3/0x1760
[   73.114564][ T1504]  ? tty_wait_until_sent+0x580/0x580
[   73.119832][ T1504]  ? __mutex_lock+0x3cd/0x1310
[   73.124578][ T1504]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[   73.130799][ T1504]  ? tty_termios_encode_baud_rate+0x3ca/0x4e0
[   73.136849][ T1504]  hci_uart_set_baudrate+0x157/0x1c0
[   73.142128][ T1504]  ? hci_uart_set_speeds+0x90/0x90
[   73.147224][ T1504]  ? stack_trace_consume_entry+0x190/0x190
[   73.153018][ T1504]  hci_uart_setup+0xa2/0x490
[   73.157607][ T1504]  ? hci_uart_set_baudrate+0x1c0/0x1c0
[   73.163051][ T1504]  hci_dev_do_open+0x784/0x1760
[   73.167887][ T1504]  ? hci_rx_work+0xaa0/0xaa0
[   73.172464][ T1504]  ? mark_held_locks+0xf0/0xf0
[   73.177211][ T1504]  hci_power_on+0x10d/0x580
[   73.181710][ T1504]  ? hci_error_reset+0xf0/0xf0
[   73.188047][ T1504]  process_one_work+0x989/0x1790
[   73.192974][ T1504]  ? pwq_dec_nr_in_flight+0x320/0x320
[   73.198354][ T1504]  worker_thread+0x98/0xe40
[   73.202870][ T1504]  kthread+0x354/0x420
[   73.206922][ T1504]  ? process_one_work+0x1790/0x1790
[   73.212102][ T1504]  ? kthread_cancel_delayed_work_sync+0x20/0x20
[   73.218329][ T1504]  ret_from_fork+0x24/0x30
[   73.223737][ T1504] Kernel Offset: disabled
[   73.228129][ T1504] Rebooting in 86400 seconds..