[  421.035348][ T1659] tun2: deleting peer with id 11, reason 4
[  421.035551][ T1666] tun3: deleting peer with id 12, reason 4
[  421.036095][ T1652] tun1: deleting peer with id 10, reason 4
[  421.036645][ T1641] tun0: deleting peer with id 4, reason 4
[  421.037090][ T1641] tun0: deleting peer with id 3, reason 4
[  421.037423][ T1641] tun0: deleting peer with id 5, reason 4
[  421.037754][ T1641] tun0: deleting peer with id 1, reason 4
[  421.038071][ T1641] tun0: deleting peer with id 6, reason 4
[  421.038403][ T1641] tun0: deleting peer with id 2, reason 4
[  431.414043][    C3] tun0: no available key for peer 1, key-id: 0
[  431.578887][   T69] tun0: no available key for peer 4, key-id: 0
[  431.579199][   T69] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u16:1/69
[  431.579434][   T69] caller is ovpn_recv+0x192/0x2a0 [ovpn]
[  431.579574][   T69] CPU: 3 UID: 0 PID: 69 Comm: kworker/u16:1 Not tainted 7.0.0-rc6-virtme #1 PREEMPT(full) 
[  431.579578][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  431.579580][   T69] Workqueue: kstrp strp_work
[  431.579588][   T69] Call Trace:
[  431.579589][   T69]  <TASK>
[  431.579591][   T69]  dump_stack_lvl+0x6f/0xa0
[  431.579598][   T69]  check_preemption_disabled+0xdb/0xf0
[  431.579604][   T69]  ovpn_recv+0x192/0x2a0 [ovpn]
[  431.579609][   T69]  ovpn_tcp_rcv+0x277/0x920 [ovpn]
[  431.579614][   T69]  ? ovpn_tcp_write_space+0x2b0/0x2b0 [ovpn]
[  431.579618][   T69]  ? ovpn_tcp_disconnect+0x10/0x10 [ovpn]
[  431.579622][   T69]  ? skb_copy_and_csum_bits+0x1d0/0x8e0
[  431.579627][   T69]  __strp_recv+0x1ec/0x1bb0
[  431.579632][   T69]  ? rcu_lockdep_current_cpu_online+0x39/0x1b0
[  431.579639][   T69]  __tcp_read_sock+0x1a1/0x7c0
[  431.579643][   T69]  ? strp_process+0xb0/0xb0
[  431.579646][   T69]  ? tcp_cleanup_rbuf+0x1c0/0x1c0
[  431.579652][   T69]  strp_read_sock+0x20f/0x2b0
[  431.579655][   T69]  ? strp_stop+0x50/0x50
[  431.579657][   T69]  ? __lock_release.isra.0+0x59/0x170
[  431.579662][   T69]  ? lockdep_hardirqs_on+0x84/0x130
[  431.579664][   T69]  ? __local_bh_enable_ip+0xa3/0x140
[  431.579668][   T69]  strp_work+0x9f/0xe0
[  431.579671][   T69]  process_one_work+0xdf6/0x1410
[  431.579678][   T69]  ? pwq_dec_nr_in_flight+0x700/0x700
[  431.579681][   T69]  ? lock_acquire.part.0+0xbc/0x260
[  431.579687][   T69]  worker_thread+0x4eb/0xd60
[  431.579699][   T69]  ? rescuer_thread+0x1340/0x1340
[  431.579702][   T69]  kthread+0x30f/0x3f0
[  431.579705][   T69]  ? trace_irq_enable.constprop.0+0x13c/0x190
[  431.579709][   T69]  ? kthread_affine_node+0x150/0x150
[  431.579712][   T69]  ret_from_fork+0x472/0x6b0
[  431.579716][   T69]  ? arch_exit_to_user_mode_prepare.isra.0+0x140/0x140
[  431.579720][   T69]  ? __switch_to+0x538/0xcf0
[  431.579723][   T69]  ? kthread_affine_node+0x150/0x150
[  431.579726][   T69]  ret_from_fork_asm+0x11/0x20
[  431.579734][   T69]  </TASK>
[  431.625608][    C3] tun0: no available key for peer 5, key-id: 0
[  431.668376][    C3] tun0: no available key for peer 6, key-id: 0
[  451.004327][ T2738] iperf3 (2738) used greatest stack depth: 23240 bytes left
[  453.343377][ T2763] tun0: deleting peer with id 1, reason 1
[  453.395708][ T2764] tun1: deleting peer with id 1, reason 1
[  455.966136][ T2778] tun0: deleting peer with id 2, reason 1
[  456.023111][ T2779] tun2: deleting peer with id 2, reason 1
[  458.791201][   T65] tun0: deleting peer with id 3, reason 2
[  459.816198][   T65] tun0: deleting peer with id 4, reason 2
[  459.816583][   T65] tun0: deleting peer with id 5, reason 2
[  459.816902][   T65] tun0: deleting peer with id 6, reason 2
[  464.871576][   T10] tun3: deleting peer with id 3, reason 2
[  464.936226][   T65] tun4: deleting peer with id 4, reason 2
[  464.999206][   T10] tun5: deleting peer with id 5, reason 2
[  465.064218][   T65] tun6: deleting peer with id 6, reason 2