[  202.393658][    C0] clocksource: Watchdog remote CPU 3 read timed out
[  211.810210][   T71] tun0: no available key for peer 6, key-id: 0
[  211.810874][   T71] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u16:1/71
[  211.811087][   T71] caller is ovpn_recv+0x193/0x2b0 [ovpn]
[  211.811211][   T71] CPU: 1 UID: 0 PID: 71 Comm: kworker/u16:1 Not tainted 7.1.0-rc2-virtme #1 PREEMPT(full) 
[  211.811215][   T71] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  211.811217][   T71] Workqueue: kstrp strp_work
[  211.811225][   T71] Call Trace:
[  211.811227][   T71]  <TASK>
[  211.811229][   T71]  dump_stack_lvl+0x6f/0xa0
[  211.811235][   T71]  check_preemption_disabled+0xdb/0xf0
[  211.811240][   T71]  ovpn_recv+0x193/0x2b0 [ovpn]
[  211.811244][   T71]  ovpn_tcp_rcv+0x279/0x910 [ovpn]
[  211.811248][   T71]  ? ovpn_tcp_write_space+0x2e0/0x2e0 [ovpn]
[  211.811252][   T71]  ? __copy_skb_header+0xb7/0x510
[  211.811256][   T71]  ? ovpn_tcp_disconnect+0x10/0x10 [ovpn]
[  211.811259][   T71]  ? csum_and_copy_from_iter_full+0xe80/0x1f70
[  211.811262][   T71]  __strp_recv+0x20f/0x1c30
[  211.811267][   T71]  ? rcu_lockdep_current_cpu_online+0x39/0x1b0
[  211.811273][   T71]  __tcp_read_sock+0x1c7/0x850
[  211.811276][   T71]  ? strp_process+0xb0/0xb0
[  211.811280][   T71]  ? tcp_cleanup_rbuf+0x1c0/0x1c0
[  211.811285][   T71]  strp_read_sock+0x20f/0x2b0
[  211.811287][   T71]  ? strp_stop+0x50/0x50
[  211.811289][   T71]  ? __lock_release.isra.0+0x6b/0x1a0
[  211.811294][   T71]  ? lockdep_hardirqs_on+0x8c/0x130
[  211.811296][   T71]  ? __local_bh_enable_ip+0xa5/0x140
[  211.811300][   T71]  strp_work+0x9f/0xe0
[  211.811302][   T71]  process_one_work+0xdf5/0x1410
[  211.811309][   T71]  ? pwq_dec_nr_in_flight+0x710/0x710
[  211.811311][   T71]  ? lock_acquire.part.0+0xbc/0x260
[  211.811317][   T71]  worker_thread+0x4f1/0xd60
[  211.811323][   T71]  ? rescuer_thread+0x1320/0x1320
[  211.811325][   T71]  kthread+0x364/0x460
[  211.811328][   T71]  ? trace_irq_enable.constprop.0+0x9b/0x180
[  211.811331][   T71]  ? kthread_affine_node+0x330/0x330
[  211.811333][   T71]  ret_from_fork+0x474/0x6b0
[  211.811338][   T71]  ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[  211.811341][   T71]  ? __switch_to+0x5a3/0xe00
[  211.811344][   T71]  ? kthread_affine_node+0x330/0x330
[  211.811346][   T71]  ret_from_fork_asm+0x11/0x20
[  211.811354][   T71]  </TASK>
[  221.911930][ T2414] iperf3 (2414) used greatest stack depth: 22624 bytes left
[  223.646202][ T2508] tun0: deleting peer with id 1, reason 1
[  223.727670][ T2512] tun1: deleting peer with id 10, reason 1
[  226.520417][ T2560] tun0: deleting peer with id 2, reason 1
[  226.598876][ T2564] tun2: deleting peer with id 11, reason 1
[  231.649808][  T610] tun0: deleting peer with id 4, reason 2
[  231.650458][  T610] tun0: deleting peer with id 3, reason 2
[  232.673552][  T610] tun0: deleting peer with id 5, reason 2
[  232.673794][  T610] tun0: deleting peer with id 6, reason 2
[  237.795073][   T66] tun3: deleting peer with id 12, reason 2
[  237.922568][  T454] tun4: deleting peer with id 13, reason 2
[  237.985562][  T205] tun5: deleting peer with id 14, reason 2
[  238.049565][  T610] tun6: deleting peer with id 15, reason 2