[  308.073364][ T1389] tun0: deleting peer with id 4, reason 4
[  308.073920][ T1389] tun0: deleting peer with id 3, reason 4
[  308.074213][ T1389] tun0: deleting peer with id 5, reason 4
[  308.074466][ T1389] tun0: deleting peer with id 1, reason 4
[  308.074740][ T1389] tun0: deleting peer with id 6, reason 4
[  308.075015][ T1389] tun0: deleting peer with id 2, reason 4
[  308.087677][ T1406] tun1: deleting peer with id 10, reason 4
[  308.088703][ T1420] tun3: deleting peer with id 12, reason 4
[  308.089679][ T1413] tun2: deleting peer with id 11, reason 4
[  319.750232][    C2] tun0: no available key for peer 1, key-id: 0
[  319.855142][   T12] tun0: no available key for peer 2, key-id: 0
[  319.855559][   T12] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u16:0/12
[  319.855914][   T12] caller is ovpn_recv+0x193/0x2b0 [ovpn]
[  319.856106][   T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 7.0.0-rc7-virtme #1 PREEMPT(full) 
[  319.856111][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  319.856114][   T12] Workqueue: kstrp strp_work
[  319.856123][   T12] Call Trace:
[  319.856125][   T12]  <TASK>
[  319.856128][   T12]  dump_stack_lvl+0x6f/0xa0
[  319.856137][   T12]  check_preemption_disabled+0xdb/0xf0
[  319.856144][   T12]  ovpn_recv+0x193/0x2b0 [ovpn]
[  319.856152][   T12]  ovpn_tcp_rcv+0x279/0x910 [ovpn]
[  319.856160][   T12]  ? ovpn_tcp_write_space+0x2e0/0x2e0 [ovpn]
[  319.856166][   T12]  ? __copy_skb_header+0xb7/0x440
[  319.856172][   T12]  ? ovpn_tcp_disconnect+0x10/0x10 [ovpn]
[  319.856178][   T12]  ? __skb_clone+0x560/0x760
[  319.856184][   T12]  __strp_recv+0x20f/0x1c30
[  319.856193][   T12]  ? rcu_lockdep_current_cpu_online+0x39/0x1b0
[  319.856201][   T12]  __tcp_read_sock+0x1c7/0x850
[  319.856212][   T12]  ? strp_process+0xb0/0xb0
[  319.856218][   T12]  ? tcp_cleanup_rbuf+0x1c0/0x1c0
[  319.856228][   T12]  strp_read_sock+0x20f/0x2b0
[  319.856232][   T12]  ? strp_stop+0x50/0x50
[  319.856235][   T12]  ? __lock_release.isra.0+0x6b/0x1a0
[  319.856243][   T12]  ? lockdep_hardirqs_on+0x8c/0x130
[  319.856246][   T12]  ? __local_bh_enable_ip+0xa5/0x140
[  319.856252][   T12]  strp_work+0x9f/0xe0
[  319.856255][   T12]  process_one_work+0xdf5/0x1410
[  319.856268][   T12]  ? pwq_dec_nr_in_flight+0x710/0x710
[  319.856271][   T12]  ? lock_acquire.part.0+0xbc/0x260
[  319.856284][   T12]  worker_thread+0x4f1/0xd60
[  319.856297][   T12]  ? rescuer_thread+0x1320/0x1320
[  319.856300][   T12]  kthread+0x364/0x460
[  319.856304][   T12]  ? trace_irq_enable.constprop.0+0x9b/0x180
[  319.856308][   T12]  ? kthread_affine_node+0x330/0x330
[  319.856313][   T12]  ret_from_fork+0x474/0x6b0
[  319.856319][   T12]  ? arch_exit_to_user_mode_prepare.isra.0+0x140/0x140
[  319.856325][   T12]  ? __switch_to+0x540/0xd10
[  319.856330][   T12]  ? kthread_affine_node+0x330/0x330
[  319.856334][   T12]  ret_from_fork_asm+0x11/0x20
[  319.856349][   T12]  </TASK>
[  320.180271][    C3] tun0: no available key for peer 5, key-id: 0
[  342.070306][ T2495] iperf3 (2495) used greatest stack depth: 22872 bytes left
[  344.662507][ T2520] tun0: deleting peer with id 1, reason 1
[  344.739092][ T2521] tun1: deleting peer with id 10, reason 1
[  347.493278][ T2535] tun0: deleting peer with id 2, reason 1
[  347.564621][ T2536] tun2: deleting peer with id 11, reason 1
[  350.622703][   T52] tun0: deleting peer with id 4, reason 2
[  350.623689][   T52] tun0: deleting peer with id 3, reason 2
[  350.624039][   T52] tun0: deleting peer with id 5, reason 2
[  351.646702][   T52] tun0: deleting peer with id 6, reason 2
[  356.831146][  T925] tun3: deleting peer with id 12, reason 2
[  356.894717][   T29] tun4: deleting peer with id 13, reason 2
[  356.958713][  T925] tun5: deleting peer with id 14, reason 2
[  357.022712][   T29] tun6: deleting peer with id 15, reason 2