[  135.582245][    C1] tun0: no available key for peer 2, key-id: 0
[  135.672347][    C0] tun0: no available key for peer 4, key-id: 0
[  135.721827][   T69] tun0: no available key for peer 5, key-id: 0
[  135.722112][   T69] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u16:1/69
[  135.722333][   T69] caller is ovpn_recv+0x193/0x2b0 [ovpn]
[  135.722462][   T69] CPU: 0 UID: 0 PID: 69 Comm: kworker/u16:1 Not tainted 7.0.0-rc7-virtme #1 PREEMPT(full) 
[  135.722465][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  135.722467][   T69] Workqueue: kstrp strp_work
[  135.722475][   T69] Call Trace:
[  135.722477][   T69]  <TASK>
[  135.722478][   T69]  dump_stack_lvl+0x6f/0xa0
[  135.722485][   T69]  check_preemption_disabled+0xdb/0xf0
[  135.722490][   T69]  ovpn_recv+0x193/0x2b0 [ovpn]
[  135.722494][   T69]  ovpn_tcp_rcv+0x279/0x910 [ovpn]
[  135.722499][   T69]  ? ovpn_tcp_write_space+0x2e0/0x2e0 [ovpn]
[  135.722502][   T69]  ? __copy_skb_header+0xb7/0x440
[  135.722507][   T69]  ? ovpn_tcp_disconnect+0x10/0x10 [ovpn]
[  135.722510][   T69]  ? __skb_clone+0x400/0x760
[  135.722513][   T69]  __strp_recv+0x20f/0x1c30
[  135.722518][   T69]  ? rcu_lockdep_current_cpu_online+0x39/0x1b0
[  135.722524][   T69]  __tcp_read_sock+0x1c7/0x850
[  135.722527][   T69]  ? strp_process+0xb0/0xb0
[  135.722530][   T69]  ? tcp_cleanup_rbuf+0x1c0/0x1c0
[  135.722535][   T69]  strp_read_sock+0x20f/0x2b0
[  135.722538][   T69]  ? strp_stop+0x50/0x50
[  135.722540][   T69]  ? __lock_release.isra.0+0x6b/0x1a0
[  135.722544][   T69]  ? lockdep_hardirqs_on+0x8c/0x130
[  135.722546][   T69]  ? __local_bh_enable_ip+0xa5/0x140
[  135.722550][   T69]  strp_work+0x9f/0xe0
[  135.722552][   T69]  process_one_work+0xdf5/0x1410
[  135.722559][   T69]  ? pwq_dec_nr_in_flight+0x710/0x710
[  135.722562][   T69]  ? lock_acquire.part.0+0xbc/0x260
[  135.722568][   T69]  worker_thread+0x4f1/0xd60
[  135.722572][   T69]  ? rescuer_thread+0x1320/0x1320
[  135.722574][   T69]  ? __kthread_parkme+0xbd/0x210
[  135.722578][   T69]  ? rescuer_thread+0x1320/0x1320
[  135.722580][   T69]  kthread+0x364/0x460
[  135.722582][   T69]  ? trace_irq_enable.constprop.0+0x9b/0x180
[  135.722586][   T69]  ? kthread_affine_node+0x330/0x330
[  135.722588][   T69]  ret_from_fork+0x474/0x6b0
[  135.722592][   T69]  ? arch_exit_to_user_mode_prepare.isra.0+0x140/0x140
[  135.722596][   T69]  ? __switch_to+0x540/0xd10
[  135.722599][   T69]  ? kthread_affine_node+0x330/0x330
[  135.722601][   T69]  ret_from_fork_asm+0x11/0x20
[  135.722609][   T69]  </TASK>
[  153.034968][ T1539] iperf3 (1539) used greatest stack depth: 23288 bytes left
[  155.209816][ T1564] tun0: deleting peer with id 1, reason 1
[  155.258650][ T1565] tun1: deleting peer with id 1, reason 1
[  157.802807][ T1579] tun0: deleting peer with id 2, reason 1
[  157.854884][ T1580] tun2: deleting peer with id 2, reason 1
[  160.535509][   T10] tun0: deleting peer with id 4, reason 2
[  160.535969][   T10] tun0: deleting peer with id 3, reason 2
[  160.536182][   T10] tun0: deleting peer with id 5, reason 2
[  161.559232][   T10] tun0: deleting peer with id 6, reason 2
[  166.616670][   T73] tun3: deleting peer with id 3, reason 2
[  166.679253][   T10] tun4: deleting peer with id 4, reason 2
[  166.680255][   T73] tun5: deleting peer with id 5, reason 2
[  166.743245][   T58] tun6: deleting peer with id 6, reason 2