[  622.173356][ T3284] tun1: deleting peer with id 10, reason 4
[  622.176185][ T3298] tun3: deleting peer with id 12, reason 4
[  622.176204][ T3291] tun2: deleting peer with id 11, reason 4
[  622.179057][ T3312] tun5: deleting peer with id 14, reason 4
[  622.179742][ T3268] tun0: deleting peer with id 4, reason 4
[  622.180048][ T3319] tun6: deleting peer with id 15, reason 4
[  622.180059][ T3268] tun0: deleting peer with id 3, reason 4
[  622.180581][ T3268] tun0: deleting peer with id 5, reason 4
[  622.180880][ T3268] tun0: deleting peer with id 1, reason 4
[  622.181152][ T3268] tun0: deleting peer with id 6, reason 4
[  622.181412][ T3268] tun0: deleting peer with id 2, reason 4
[  622.183047][ T3305] tun4: deleting peer with id 13, reason 4
[  632.685537][   T69] tun0: no available key for peer 6, key-id: 0
[  632.685887][   T69] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u16:1/69
[  632.686121][   T69] caller is ovpn_recv+0x192/0x2a0 [ovpn]
[  632.686264][   T69] CPU: 0 UID: 0 PID: 69 Comm: kworker/u16:1 Not tainted 7.0.0-rc1-virtme #1 PREEMPT(full) 
[  632.686268][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  632.686270][   T69] Workqueue: kstrp strp_work
[  632.686277][   T69] Call Trace:
[  632.686279][   T69]  <TASK>
[  632.686281][   T69]  dump_stack_lvl+0x6f/0xa0
[  632.686287][   T69]  check_preemption_disabled+0xdb/0xf0
[  632.686293][   T69]  ovpn_recv+0x192/0x2a0 [ovpn]
[  632.686299][   T69]  ovpn_tcp_rcv+0x277/0x920 [ovpn]
[  632.686306][   T69]  ? ovpn_tcp_write_space+0x2b0/0x2b0 [ovpn]
[  632.686313][   T69]  ? ovpn_tcp_disconnect+0x10/0x10 [ovpn]
[  632.686317][   T69]  ? __skb_send_sock+0x940/0xad0
[  632.686322][   T69]  __strp_recv+0x1ee/0x1b70
[  632.686327][   T69]  ? rcu_lockdep_current_cpu_online+0x39/0x1b0
[  632.686333][   T69]  __tcp_read_sock+0x1a1/0x7c0
[  632.686337][   T69]  ? strp_process+0xb0/0xb0
[  632.686340][   T69]  ? tcp_cleanup_rbuf+0x1c0/0x1c0
[  632.686345][   T69]  strp_read_sock+0x20f/0x2b0
[  632.686348][   T69]  ? strp_stop+0x50/0x50
[  632.686350][   T69]  ? __lock_release.isra.0+0x59/0x170
[  632.686355][   T69]  ? lockdep_hardirqs_on+0x84/0x130
[  632.686357][   T69]  ? __local_bh_enable_ip+0xa3/0x140
[  632.686361][   T69]  strp_work+0x9f/0xe0
[  632.686363][   T69]  process_one_work+0xd57/0x1390
[  632.686370][   T69]  ? pwq_dec_nr_in_flight+0x700/0x700
[  632.686373][   T69]  ? lock_acquire.part.0+0xbc/0x260
[  632.686379][   T69]  worker_thread+0x4d6/0xd40
[  632.686383][   T69]  ? rescuer_thread+0x1330/0x1330
[  632.686386][   T69]  ? __kthread_parkme+0xb3/0x200
[  632.686390][   T69]  ? rescuer_thread+0x1330/0x1330
[  632.686392][   T69]  kthread+0x30f/0x3f0
[  632.686394][   T69]  ? trace_irq_enable.constprop.0+0x13c/0x190
[  632.686398][   T69]  ? kthread_affine_node+0x150/0x150
[  632.686401][   T69]  ret_from_fork+0x472/0x6b0
[  632.686405][   T69]  ? arch_exit_to_user_mode_prepare.isra.0+0x140/0x140
[  632.686409][   T69]  ? __switch_to+0x538/0xcf0
[  632.686412][   T69]  ? kthread_affine_node+0x150/0x150
[  632.686415][   T69]  ret_from_fork_asm+0x11/0x20
[  632.686424][   T69]  </TASK>
[  641.144513][ T3694] iperf3 (3694) used greatest stack depth: 23200 bytes left
[  641.367224][ T3647] tun2: deleting peer with id 11, reason 4
[  641.367550][ T3660] tun6: deleting peer with id 15, reason 4
[  641.367871][ T3653] tun4: deleting peer with id 13, reason 4
[  641.368227][ T3650] tun3: deleting peer with id 12, reason 4
[  641.370598][ T3656] tun5: deleting peer with id 14, reason 4
[  641.376107][ T3644] tun1: deleting peer with id 10, reason 4
[  641.381110][ T3661] tun0: deleting peer with id 6, reason 4
[  641.386327][ T3661] tun0: deleting peer with id 5, reason 4
[  641.391377][ T3661] tun0: deleting peer with id 4, reason 4
[  641.398296][ T3661] tun0: deleting peer with id 3, reason 4
[  641.406286][ T3661] tun0: deleting peer with id 2, reason 4
[  641.414386][ T3661] tun0: deleting peer with id 1, reason 4