[  902.004667][  T344] tun0: no available key for peer 4, key-id: 0
[  902.004867][  T344] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u16:2/344
[  902.005318][  T344] caller is ovpn_recv+0x193/0x2b0 [ovpn]
[  902.005445][  T344] CPU: 0 UID: 0 PID: 344 Comm: kworker/u16:2 Not tainted 7.0.0-rc7-virtme #1 PREEMPT(full) 
[  902.005449][  T344] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  902.005451][  T344] Workqueue: kstrp strp_work
[  902.005459][  T344] Call Trace:
[  902.005461][  T344]  <TASK>
[  902.005463][  T344]  dump_stack_lvl+0x6f/0xa0
[  902.005470][  T344]  check_preemption_disabled+0xdb/0xf0
[  902.005475][  T344]  ovpn_recv+0x193/0x2b0 [ovpn]
[  902.005479][  T344]  ovpn_tcp_rcv+0x279/0x910 [ovpn]
[  902.005484][  T344]  ? ovpn_tcp_write_space+0x2e0/0x2e0 [ovpn]
[  902.005488][  T344]  ? __copy_skb_header+0xb7/0x440
[  902.005491][  T344]  ? ovpn_tcp_disconnect+0x10/0x10 [ovpn]
[  902.005494][  T344]  ? __skb_clone+0x500/0x760
[  902.005497][  T344]  __strp_recv+0x20f/0x1c30
[  902.005502][  T344]  ? rcu_lockdep_current_cpu_online+0x39/0x1b0
[  902.005508][  T344]  __tcp_read_sock+0x1c7/0x850
[  902.005512][  T344]  ? strp_process+0xb0/0xb0
[  902.005515][  T344]  ? tcp_cleanup_rbuf+0x1c0/0x1c0
[  902.005520][  T344]  strp_read_sock+0x20f/0x2b0
[  902.005523][  T344]  ? strp_stop+0x50/0x50
[  902.005524][  T344]  ? __lock_release.isra.0+0x6b/0x1a0
[  902.005529][  T344]  ? lockdep_hardirqs_on+0x8c/0x130
[  902.005532][  T344]  ? __local_bh_enable_ip+0xa5/0x140
[  902.005536][  T344]  strp_work+0x9f/0xe0
[  902.005538][  T344]  process_one_work+0xdf5/0x1410
[  902.005545][  T344]  ? pwq_dec_nr_in_flight+0x710/0x710
[  902.005548][  T344]  ? lock_acquire.part.0+0xbc/0x260
[  902.005555][  T344]  worker_thread+0x4f1/0xd60
[  902.005559][  T344]  ? rescuer_thread+0x1320/0x1320
[  902.005561][  T344]  ? __kthread_parkme+0xbd/0x210
[  902.005565][  T344]  ? rescuer_thread+0x1320/0x1320
[  902.005567][  T344]  kthread+0x364/0x460
[  902.005569][  T344]  ? trace_irq_enable.constprop.0+0x9b/0x180
[  902.005573][  T344]  ? kthread_affine_node+0x330/0x330
[  902.005576][  T344]  ret_from_fork+0x474/0x6b0
[  902.005580][  T344]  ? arch_exit_to_user_mode_prepare.isra.0+0x140/0x140
[  902.005584][  T344]  ? __switch_to+0x540/0xd10
[  902.005587][  T344]  ? kthread_affine_node+0x330/0x330
[  902.005590][  T344]  ret_from_fork_asm+0x11/0x20
[  902.005597][  T344]  </TASK>
[  902.139256][    C3] tun0: no available key for peer 6, key-id: 0
[  910.353589][ T6241] iperf3 (6241) used greatest stack depth: 23264 bytes left
[  910.531556][ T6201] tun4: deleting peer with id 13, reason 4
[  910.533904][ T6207] tun0: deleting peer with id 6, reason 4
[  910.533932][ T6198] tun3: deleting peer with id 12, reason 4
[  910.533990][ T6192] tun1: deleting peer with id 10, reason 4
[  910.534759][ T6204] tun5: deleting peer with id 14, reason 4
[  910.535182][ T6208] tun6: deleting peer with id 15, reason 4
[  910.536889][ T6195] tun2: deleting peer with id 11, reason 4
[  910.539742][ T6207] tun0: deleting peer with id 5, reason 4
[  910.544230][ T6207] tun0: deleting peer with id 4, reason 4
[  910.547390][ T6207] tun0: deleting peer with id 3, reason 4
[  910.551270][ T6207] tun0: deleting peer with id 2, reason 4
[  910.559279][ T6207] tun0: deleting peer with id 1, reason 4