[  134.586753][   T12] tun0: no available key for peer 2, key-id: 0
[  134.589093][   T12] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u16:0/12
[  134.589355][   T12] caller is ovpn_recv+0x192/0x2a0 [ovpn]
[  134.589503][   T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 7.0.0-rc3-virtme #1 PREEMPT(full) 
[  134.589506][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  134.589508][   T12] Workqueue: kstrp strp_work
[  134.589515][   T12] Call Trace:
[  134.589517][   T12]  <TASK>
[  134.589519][   T12]  dump_stack_lvl+0x6f/0xa0
[  134.589526][   T12]  check_preemption_disabled+0xdb/0xf0
[  134.589531][   T12]  ovpn_recv+0x192/0x2a0 [ovpn]
[  134.589536][   T12]  ovpn_tcp_rcv+0x277/0x920 [ovpn]
[  134.589540][   T12]  ? ovpn_tcp_write_space+0x2b0/0x2b0 [ovpn]
[  134.589545][   T12]  ? ovpn_tcp_disconnect+0x10/0x10 [ovpn]
[  134.589547][   T12]  ? __build_skb_around+0x90/0x330
[  134.589552][   T12]  __strp_recv+0x1ee/0x1b70
[  134.589557][   T12]  ? rcu_lockdep_current_cpu_online+0x39/0x1b0
[  134.589563][   T12]  __tcp_read_sock+0x1a1/0x7c0
[  134.589567][   T12]  ? strp_process+0xb0/0xb0
[  134.589570][   T12]  ? tcp_cleanup_rbuf+0x1c0/0x1c0
[  134.589575][   T12]  strp_read_sock+0x20f/0x2b0
[  134.589578][   T12]  ? strp_stop+0x50/0x50
[  134.589579][   T12]  ? __lock_release.isra.0+0x59/0x170
[  134.589585][   T12]  ? lockdep_hardirqs_on+0x84/0x130
[  134.589586][   T12]  ? __local_bh_enable_ip+0xa3/0x140
[  134.589590][   T12]  strp_work+0x9f/0xe0
[  134.589592][   T12]  process_one_work+0xd57/0x1390
[  134.589600][   T12]  ? pwq_dec_nr_in_flight+0x700/0x700
[  134.589602][   T12]  ? lock_acquire.part.0+0xbc/0x260
[  134.589608][   T12]  worker_thread+0x4d6/0xd40
[  134.589615][   T12]  ? rescuer_thread+0x1330/0x1330
[  134.589617][   T12]  kthread+0x30f/0x3f0
[  134.589620][   T12]  ? trace_irq_enable.constprop.0+0x13c/0x190
[  134.589623][   T12]  ? kthread_affine_node+0x150/0x150
[  134.589626][   T12]  ret_from_fork+0x472/0x6b0
[  134.589630][   T12]  ? arch_exit_to_user_mode_prepare.isra.0+0x140/0x140
[  134.589634][   T12]  ? __switch_to+0x538/0xcf0
[  134.589637][   T12]  ? kthread_affine_node+0x150/0x150
[  134.589639][   T12]  ret_from_fork_asm+0x11/0x20
[  134.589648][   T12]  </TASK>
[  152.726089][ T1542] iperf3 (1542) used greatest stack depth: 23240 bytes left
[  154.925734][ T1567] tun0: deleting peer with id 1, reason 1
[  154.968671][ T1568] tun1: deleting peer with id 1, reason 1
[  157.484953][ T1582] tun0: deleting peer with id 2, reason 1
[  157.545065][ T1583] tun2: deleting peer with id 2, reason 1
[  161.174143][   T50] tun0: deleting peer with id 4, reason 2
[  161.174678][   T50] tun0: deleting peer with id 3, reason 2
[  161.174930][   T50] tun0: deleting peer with id 5, reason 2
[  161.175144][   T50] tun0: deleting peer with id 6, reason 2
[  166.293255][   T10] tun3: deleting peer with id 3, reason 2
[  166.356904][   T50] tun5: deleting peer with id 5, reason 2
[  166.356921][   T66] tun4: deleting peer with id 4, reason 2
[  166.420889][   T10] tun6: deleting peer with id 6, reason 2