[  603.918020][    C2] tun0: no available key for peer 1, key-id: 0
[  604.306572][    C0] tun0: no available key for peer 4, key-id: 0
[  604.421549][   T12] tun0: no available key for peer 5, key-id: 0
[  604.421917][   T12] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u16:0/12
[  604.422143][   T12] caller is ovpn_recv+0x193/0x2b0 [ovpn]
[  604.422283][   T12] CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 7.1.0-rc1-virtme #1 PREEMPT(full) 
[  604.422287][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  604.422289][   T12] Workqueue: kstrp strp_work
[  604.422298][   T12] Call Trace:
[  604.422300][   T12]  <TASK>
[  604.422302][   T12]  dump_stack_lvl+0x6f/0xa0
[  604.422309][   T12]  check_preemption_disabled+0xdb/0xf0
[  604.422314][   T12]  ovpn_recv+0x193/0x2b0 [ovpn]
[  604.422322][   T12]  ovpn_tcp_rcv+0x279/0x910 [ovpn]
[  604.422328][   T12]  ? ovpn_tcp_write_space+0x2e0/0x2e0 [ovpn]
[  604.422331][   T12]  ? __copy_skb_header+0xb7/0x510
[  604.422336][   T12]  ? ovpn_tcp_disconnect+0x10/0x10 [ovpn]
[  604.422340][   T12]  ? csum_and_copy_from_iter_full+0xb00/0x1f70
[  604.422344][   T12]  __strp_recv+0x20f/0x1c30
[  604.422349][   T12]  ? rcu_lockdep_current_cpu_online+0x39/0x1b0
[  604.422355][   T12]  __tcp_read_sock+0x1c7/0x850
[  604.422359][   T12]  ? strp_process+0xb0/0xb0
[  604.422363][   T12]  ? tcp_cleanup_rbuf+0x1c0/0x1c0
[  604.422368][   T12]  strp_read_sock+0x20f/0x2b0
[  604.422371][   T12]  ? strp_stop+0x50/0x50
[  604.422373][   T12]  ? __lock_release.isra.0+0x6b/0x1a0
[  604.422378][   T12]  ? lockdep_hardirqs_on+0x8c/0x130
[  604.422380][   T12]  ? __local_bh_enable_ip+0xa5/0x140
[  604.422383][   T12]  strp_work+0x9f/0xe0
[  604.422386][   T12]  process_one_work+0xdf5/0x1410
[  604.422393][   T12]  ? pwq_dec_nr_in_flight+0x710/0x710
[  604.422395][   T12]  ? lock_acquire.part.0+0xbc/0x260
[  604.422402][   T12]  worker_thread+0x4f1/0xd60
[  604.422408][   T12]  ? rescuer_thread+0x1320/0x1320
[  604.422410][   T12]  kthread+0x364/0x460
[  604.422413][   T12]  ? trace_irq_enable.constprop.0+0x9b/0x180
[  604.422417][   T12]  ? kthread_affine_node+0x330/0x330
[  604.422419][   T12]  ret_from_fork+0x474/0x6b0
[  604.422423][   T12]  ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[  604.422426][   T12]  ? __switch_to+0x5a3/0xe00
[  604.422429][   T12]  ? kthread_affine_node+0x330/0x330
[  604.422432][   T12]  ret_from_fork_asm+0x11/0x20
[  604.422440][   T12]  </TASK>
[  626.265030][ T8251] tun0: deleting peer with id 1, reason 1
[  626.348790][ T8255] tun1: deleting peer with id 10, reason 1
[  629.358467][ T8303] tun0: deleting peer with id 2, reason 1
[  629.470933][ T8307] tun2: deleting peer with id 11, reason 1
[  635.486696][ T1623] tun0: deleting peer with id 4, reason 2
[  635.487226][ T1623] tun0: deleting peer with id 3, reason 2
[  635.487666][ T1623] tun0: deleting peer with id 5, reason 2
[  635.487891][ T1623] tun0: deleting peer with id 6, reason 2
[  640.735986][  T612] tun3: deleting peer with id 12, reason 2
[  640.863382][   T56] tun4: deleting peer with id 13, reason 2
[  640.926396][ T1623] tun5: deleting peer with id 14, reason 2
[  641.054377][ T1623] tun6: deleting peer with id 15, reason 2