[   11.083259][  T253] ip (253) used greatest stack depth: 24096 bytes left
[   18.799849][   T12] tun0: no available key for peer 2, key-id: 0
[   18.800111][   T12] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u16:0/12
[   18.800349][   T12] caller is ovpn_recv+0x192/0x2a0 [ovpn]
[   18.800502][   T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 7.0.0-rc6-virtme #1 PREEMPT(full) 
[   18.800505][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.800507][   T12] Workqueue: kstrp strp_work
[   18.800515][   T12] Call Trace:
[   18.800517][   T12]  <TASK>
[   18.800519][   T12]  dump_stack_lvl+0x6f/0xa0
[   18.800526][   T12]  check_preemption_disabled+0xdb/0xf0
[   18.800531][   T12]  ovpn_recv+0x192/0x2a0 [ovpn]
[   18.800536][   T12]  ovpn_tcp_rcv+0x277/0x920 [ovpn]
[   18.800541][   T12]  ? ovpn_tcp_write_space+0x2b0/0x2b0 [ovpn]
[   18.800545][   T12]  ? ovpn_tcp_disconnect+0x10/0x10 [ovpn]
[   18.800548][   T12]  ? skb_copy_and_csum_bits+0x210/0x8e0
[   18.800554][   T12]  __strp_recv+0x1ec/0x1bb0
[   18.800558][   T12]  ? rcu_lockdep_current_cpu_online+0x39/0x1b0
[   18.800564][   T12]  __tcp_read_sock+0x1a1/0x7c0
[   18.800568][   T12]  ? strp_process+0xb0/0xb0
[   18.800571][   T12]  ? tcp_cleanup_rbuf+0x1c0/0x1c0
[   18.800577][   T12]  strp_read_sock+0x20f/0x2b0
[   18.800579][   T12]  ? strp_stop+0x50/0x50
[   18.800581][   T12]  ? __lock_release.isra.0+0x59/0x170
[   18.800586][   T12]  ? lockdep_hardirqs_on+0x84/0x130
[   18.800588][   T12]  ? __local_bh_enable_ip+0xa3/0x140
[   18.800592][   T12]  strp_work+0x9f/0xe0
[   18.800594][   T12]  process_one_work+0xdf6/0x1410
[   18.800601][   T12]  ? pwq_dec_nr_in_flight+0x700/0x700
[   18.800604][   T12]  ? lock_acquire.part.0+0xbc/0x260
[   18.800610][   T12]  worker_thread+0x4eb/0xd60
[   18.800617][   T12]  ? rescuer_thread+0x1340/0x1340
[   18.800619][   T12]  kthread+0x30f/0x3f0
[   18.800621][   T12]  ? trace_irq_enable.constprop.0+0x13c/0x190
[   18.800625][   T12]  ? kthread_affine_node+0x150/0x150
[   18.800628][   T12]  ret_from_fork+0x472/0x6b0
[   18.800632][   T12]  ? arch_exit_to_user_mode_prepare.isra.0+0x140/0x140
[   18.800636][   T12]  ? __switch_to+0x538/0xcf0
[   18.800639][   T12]  ? kthread_affine_node+0x150/0x150
[   18.800642][   T12]  ret_from_fork_asm+0x11/0x20
[   18.800649][   T12]  </TASK>
[   18.871333][    C1] tun0: no available key for peer 3, key-id: 0
[   40.592994][  T451] iperf3 (451) used greatest stack depth: 22368 bytes left
[   42.727505][  T477] tun0: deleting peer with id 1, reason 1
[   42.800067][  T478] tun1: deleting peer with id 1, reason 1
[   45.312528][  T492] tun0: deleting peer with id 2, reason 1
[   45.366741][  T493] tun2: deleting peer with id 2, reason 1
[   49.062522][   T10] tun0: deleting peer with id 4, reason 2
[   49.063001][   T10] tun0: deleting peer with id 3, reason 2
[   49.063219][   T10] tun0: deleting peer with id 5, reason 2
[   49.063435][   T10] tun0: deleting peer with id 6, reason 2
[   54.183425][   T50] tun3: deleting peer with id 3, reason 2
[   54.183551][   T68] tun4: deleting peer with id 4, reason 2
[   54.246330][   T10] tun5: deleting peer with id 5, reason 2
[   54.311324][   T50] tun6: deleting peer with id 6, reason 2