[  422.386876][ T1720] tun0: deleting peer with id 4, reason 4
[  422.386885][ T1731] tun1: deleting peer with id 10, reason 4
[  422.386899][ T1738] tun2: deleting peer with id 11, reason 4
[  422.387271][ T1720] tun0: deleting peer with id 3, reason 4
[  422.387854][ T1720] tun0: deleting peer with id 5, reason 4
[  422.388088][ T1720] tun0: deleting peer with id 1, reason 4
[  422.388325][ T1720] tun0: deleting peer with id 6, reason 4
[  422.388564][ T1720] tun0: deleting peer with id 2, reason 4
[  422.390435][ T1745] tun3: deleting peer with id 12, reason 4
[  431.850600][    C3] tun0: no available key for peer 2, key-id: 0
[  431.986188][   T12] tun0: no available key for peer 4, key-id: 0
[  431.986373][   T12] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u16:0/12
[  431.986596][   T12] caller is ovpn_recv+0x192/0x2a0 [ovpn]
[  431.986736][   T12] CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 7.0.0-rc5-virtme #1 PREEMPT(full) 
[  431.986740][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  431.986742][   T12] Workqueue: kstrp strp_work
[  431.986749][   T12] Call Trace:
[  431.986751][   T12]  <TASK>
[  431.986753][   T12]  dump_stack_lvl+0x6f/0xa0
[  431.986759][   T12]  check_preemption_disabled+0xdb/0xf0
[  431.986765][   T12]  ovpn_recv+0x192/0x2a0 [ovpn]
[  431.986769][   T12]  ovpn_tcp_rcv+0x277/0x920 [ovpn]
[  431.986773][   T12]  ? ovpn_tcp_write_space+0x2b0/0x2b0 [ovpn]
[  431.986777][   T12]  ? ovpn_tcp_disconnect+0x10/0x10 [ovpn]
[  431.986781][   T12]  ? skb_pp_frag_ref+0x440/0x440
[  431.986787][   T12]  __strp_recv+0x1ee/0x1b70
[  431.986793][   T12]  ? lock_acquire.part.0+0xbc/0x260
[  431.986798][   T12]  __tcp_read_sock+0x1a1/0x7c0
[  431.986803][   T12]  ? strp_process+0xb0/0xb0
[  431.986806][   T12]  ? tcp_cleanup_rbuf+0x1c0/0x1c0
[  431.986808][   T12]  ? __lock_sock+0x192/0x200
[  431.986813][   T12]  strp_read_sock+0x20f/0x2b0
[  431.986815][   T12]  ? strp_stop+0x50/0x50
[  431.986817][   T12]  ? __lock_release.isra.0+0x59/0x170
[  431.986820][   T12]  ? lockdep_hardirqs_on+0x84/0x130
[  431.986822][   T12]  ? __local_bh_enable_ip+0xa3/0x140
[  431.986826][   T12]  strp_work+0x9f/0xe0
[  431.986828][   T12]  process_one_work+0xdf6/0x1410
[  431.986836][   T12]  ? pwq_dec_nr_in_flight+0x700/0x700
[  431.986838][   T12]  ? lock_acquire.part.0+0xbc/0x260
[  431.986844][   T12]  worker_thread+0x4eb/0xd60
[  431.986850][   T12]  ? rescuer_thread+0x1340/0x1340
[  431.986853][   T12]  kthread+0x30f/0x3f0
[  431.986855][   T12]  ? trace_irq_enable.constprop.0+0x13c/0x190
[  431.986859][   T12]  ? kthread_affine_node+0x150/0x150
[  431.986861][   T12]  ret_from_fork+0x472/0x6b0
[  431.986865][   T12]  ? arch_exit_to_user_mode_prepare.isra.0+0x140/0x140
[  431.986869][   T12]  ? __switch_to+0x538/0xcf0
[  431.986872][   T12]  ? kthread_affine_node+0x150/0x150
[  431.986875][   T12]  ret_from_fork_asm+0x11/0x20
[  431.986882][   T12]  </TASK>
[  449.975295][ T2822] iperf3 (2822) used greatest stack depth: 23240 bytes left
[  452.140778][ T2847] tun0: deleting peer with id 1, reason 1
[  452.192139][ T2848] tun1: deleting peer with id 10, reason 1
[  454.695790][ T2862] tun0: deleting peer with id 2, reason 1
[  454.755444][ T2863] tun2: deleting peer with id 11, reason 1
[  458.395563][   T10] tun0: deleting peer with id 4, reason 2
[  458.396150][   T10] tun0: deleting peer with id 3, reason 2
[  458.396360][   T10] tun0: deleting peer with id 5, reason 2
[  458.396569][   T10] tun0: deleting peer with id 6, reason 2
[  463.515950][   T10] tun3: deleting peer with id 12, reason 2
[  463.579563][   T10] tun5: deleting peer with id 14, reason 2
[  463.579581][   T52] tun4: deleting peer with id 13, reason 2
[  463.643559][   T52] tun6: deleting peer with id 15, reason 2