[   10.847865][  T255] ip (255) used greatest stack depth: 24488 bytes left
[   18.141577][   T12] tun0: no available key for peer 2, key-id: 0
[   18.141825][   T12] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u16:0/12
[   18.142036][   T12] caller is ovpn_recv+0x192/0x2a0 [ovpn]
[   18.142168][   T12] CPU: 3 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 7.0.0-rc3-virtme #1 PREEMPT(full) 
[   18.142171][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.142173][   T12] Workqueue: kstrp strp_work
[   18.142180][   T12] Call Trace:
[   18.142182][   T12]  <TASK>
[   18.142183][   T12]  dump_stack_lvl+0x6f/0xa0
[   18.142192][   T12]  check_preemption_disabled+0xdb/0xf0
[   18.142198][   T12]  ovpn_recv+0x192/0x2a0 [ovpn]
[   18.142202][   T12]  ovpn_tcp_rcv+0x277/0x920 [ovpn]
[   18.142207][   T12]  ? ovpn_tcp_write_space+0x2b0/0x2b0 [ovpn]
[   18.142212][   T12]  ? ovpn_tcp_disconnect+0x10/0x10 [ovpn]
[   18.142215][   T12]  ? __skb_ext_set+0x270/0x430
[   18.142220][   T12]  __strp_recv+0x1ee/0x1b70
[   18.142224][   T12]  ? rcu_lockdep_current_cpu_online+0x39/0x1b0
[   18.142230][   T12]  __tcp_read_sock+0x1a1/0x7c0
[   18.142235][   T12]  ? strp_process+0xb0/0xb0
[   18.142237][   T12]  ? tcp_cleanup_rbuf+0x1c0/0x1c0
[   18.142243][   T12]  strp_read_sock+0x20f/0x2b0
[   18.142245][   T12]  ? strp_stop+0x50/0x50
[   18.142247][   T12]  ? __lock_release.isra.0+0x59/0x170
[   18.142252][   T12]  ? lockdep_hardirqs_on+0x84/0x130
[   18.142254][   T12]  ? __local_bh_enable_ip+0xa3/0x140
[   18.142258][   T12]  strp_work+0x9f/0xe0
[   18.142260][   T12]  process_one_work+0xd57/0x1390
[   18.142267][   T12]  ? pwq_dec_nr_in_flight+0x700/0x700
[   18.142270][   T12]  ? lock_acquire.part.0+0xbc/0x260
[   18.142276][   T12]  worker_thread+0x4d6/0xd40
[   18.142283][   T12]  ? rescuer_thread+0x1330/0x1330
[   18.142285][   T12]  kthread+0x30f/0x3f0
[   18.142288][   T12]  ? trace_irq_enable.constprop.0+0x13c/0x190
[   18.142292][   T12]  ? kthread_affine_node+0x150/0x150
[   18.142294][   T12]  ret_from_fork+0x472/0x6b0
[   18.142298][   T12]  ? arch_exit_to_user_mode_prepare.isra.0+0x140/0x140
[   18.142302][   T12]  ? __switch_to+0x538/0xcf0
[   18.142305][   T12]  ? kthread_affine_node+0x150/0x150
[   18.142308][   T12]  ret_from_fork_asm+0x11/0x20
[   18.142316][   T12]  </TASK>
[   18.418561][    C2] tun0: no available key for peer 6, key-id: 0
[   36.384299][  T454] iperf3 (454) used greatest stack depth: 23240 bytes left
[   38.468044][  T479] tun0: deleting peer with id 1, reason 1
[   38.519813][  T480] tun1: deleting peer with id 10, reason 1
[   41.078213][  T495] tun0: deleting peer with id 2, reason 1
[   41.121176][  T496] tun2: deleting peer with id 11, reason 1
[   43.775421][   T10] tun0: deleting peer with id 3, reason 2
[   44.799210][   T10] tun0: deleting peer with id 4, reason 2
[   44.799473][   T10] tun0: deleting peer with id 5, reason 2
[   44.799691][   T10] tun0: deleting peer with id 6, reason 2
[   49.855525][   T72] tun3: deleting peer with id 12, reason 2
[   49.919233][   T10] tun5: deleting peer with id 14, reason 2
[   49.920216][   T72] tun4: deleting peer with id 13, reason 2
[   49.984212][   T72] tun6: deleting peer with id 15, reason 2