[  546.213916][   T70] tun0: no available key for peer 2, key-id: 0
[  546.214261][   T70] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u16:1/70
[  546.214520][   T70] caller is ovpn_recv+0x193/0x2b0 [ovpn]
[  546.214751][   T70] CPU: 2 UID: 0 PID: 70 Comm: kworker/u16:1 Not tainted 7.1.0-rc1-virtme #1 PREEMPT(full) 
[  546.214755][   T70] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  546.214757][   T70] Workqueue: kstrp strp_work
[  546.214765][   T70] Call Trace:
[  546.214767][   T70]  <TASK>
[  546.214769][   T70]  dump_stack_lvl+0x6f/0xa0
[  546.214777][   T70]  check_preemption_disabled+0xdb/0xf0
[  546.214781][   T70]  ovpn_recv+0x193/0x2b0 [ovpn]
[  546.214787][   T70]  ovpn_tcp_rcv+0x279/0x910 [ovpn]
[  546.214792][   T70]  ? ovpn_tcp_write_space+0x2e0/0x2e0 [ovpn]
[  546.214796][   T70]  ? __copy_skb_header+0xb7/0x510
[  546.214801][   T70]  ? ovpn_tcp_disconnect+0x10/0x10 [ovpn]
[  546.214804][   T70]  ? sock_queue_err_skb+0x4c0/0x670
[  546.214808][   T70]  __strp_recv+0x20f/0x1c20
[  546.214813][   T70]  ? rcu_lockdep_current_cpu_online+0x39/0x1b0
[  546.214819][   T70]  __tcp_read_sock+0x1c7/0x850
[  546.214823][   T70]  ? strp_process+0xb0/0xb0
[  546.214826][   T70]  ? tcp_cleanup_rbuf+0x1c0/0x1c0
[  546.214831][   T70]  strp_read_sock+0x20f/0x2b0
[  546.214834][   T70]  ? strp_stop+0x50/0x50
[  546.214835][   T70]  ? __lock_release.isra.0+0x6b/0x1a0
[  546.214840][   T70]  ? lockdep_hardirqs_on+0x8c/0x130
[  546.214842][   T70]  ? __local_bh_enable_ip+0xa5/0x140
[  546.214845][   T70]  strp_work+0x9f/0xe0
[  546.214847][   T70]  process_one_work+0xdf5/0x1410
[  546.214854][   T70]  ? pwq_dec_nr_in_flight+0x710/0x710
[  546.214856][   T70]  ? lock_acquire.part.0+0xbc/0x260
[  546.214863][   T70]  worker_thread+0x4f1/0xd60
[  546.214867][   T70]  ? rescuer_thread+0x1320/0x1320
[  546.214869][   T70]  ? __kthread_parkme+0xbd/0x210
[  546.214873][   T70]  ? rescuer_thread+0x1320/0x1320
[  546.214875][   T70]  kthread+0x364/0x460
[  546.214877][   T70]  ? trace_irq_enable.constprop.0+0x9b/0x180
[  546.214881][   T70]  ? kthread_affine_node+0x330/0x330
[  546.214883][   T70]  ret_from_fork+0x474/0x6b0
[  546.214887][   T70]  ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[  546.214890][   T70]  ? __switch_to+0x5a3/0xe00
[  546.214893][   T70]  ? kthread_affine_node+0x330/0x330
[  546.214896][   T70]  ret_from_fork_asm+0x11/0x20
[  546.214904][   T70]  </TASK>
[  546.427970][    C0] tun0: no available key for peer 5, key-id: 0
[  546.509187][    C0] tun0: no available key for peer 6, key-id: 0
[  564.864057][ T6805] iperf3 (6805) used greatest stack depth: 22472 bytes left
[  566.677429][ T6899] tun0: deleting peer with id 1, reason 1
[  566.753873][ T6903] tun1: deleting peer with id 1, reason 1
[  569.605879][ T6951] tun0: deleting peer with id 2, reason 1
[  569.699499][ T6955] tun2: deleting peer with id 2, reason 1
[  574.735835][   T66] tun0: deleting peer with id 4, reason 2
[  574.736642][   T66] tun0: deleting peer with id 3, reason 2
[  575.760551][   T66] tun0: deleting peer with id 5, reason 2
[  575.760862][   T66] tun0: deleting peer with id 6, reason 2
[  580.880135][  T170] tun3: deleting peer with id 3, reason 2
[  580.944573][   T66] tun4: deleting peer with id 4, reason 2
[  581.007566][  T170] tun5: deleting peer with id 5, reason 2
[  581.135580][  T170] tun6: deleting peer with id 6, reason 2