[   80.969679] ------------[ cut here ]------------
[   80.969740] rcuref - imbalanced put()
[   80.969741] WARNING: lib/rcuref.c:266 at rcuref_put_slowpath+0x38/0x60, CPU#0: swapper/0/0
[   80.969822] Modules linked in: ipvtap ipvlan unix_diag netdevsim psample sch_fq bonding sctp act_gact cls_flower sch_ingress vxlan [last unloaded: psample]
[   80.969907] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 7.0.0-virtme #1 PREEMPT(lazy) 
[   80.969945] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   80.969978] RIP: 0010:rcuref_put_slowpath+0x38/0x60
[   80.970012] Code: 00 e0 f0 0f b1 0f 0f 94 c0 75 0f c3 81 fe ff ff ff bf 77 07 85 f6 78 28 31 c0 c3 48 83 ec 08 48 89 3c 24 48 8d 3d 58 ce 41 01 <67> 48 0f b9 3a 48 8b 14 24 31 c0 c7 02 00 00 00 e0 48 83 c4 08 c3
[   80.970100] RSP: 0018:ff6da42680003ea8 EFLAGS: 00010292
[   80.970129] RAX: 00000000dfffffff RBX: ff40ae3181d2a0c8 RCX: ff40ae3188149b00
[   80.970172] RDX: ff9fa4267fd04af8 RSI: 00000000dfffffff RDI: ffffffffb6c7d850
[   80.970212] RBP: ff40ae3181d2a000 R08: ff40ae3181d2a0c8 R09: ffffffffb543023f
[   80.970255] R10: ffbc7bf1400ca1c0 R11: ff40ae3181034180 R12: ff6da42680003f38
[   80.970298] R13: 0000000000000006 R14: 000000000000000a R15: 0000000000000000
[   80.970339] FS:  0000000000000000(0000) GS:ff40ae3207a48000(0000) knlGS:0000000000000000
[   80.970381] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   80.970408] CR2: 00007f4ff2565f98 CR3: 0000000005c47001 CR4: 0000000000771ef0
[   80.970452] PKRU: 55555554
[   80.970464] Call Trace:
[   80.970484]  <IRQ>
[   80.970500]  dst_release+0x47/0xd0
[   80.970526]  fib6_nh_release_dsts.part.0+0x62/0x90
[   80.970557]  fib6_nh_release+0x41/0x70
[   80.970580]  fib6_info_destroy_rcu+0x80/0xc0
[   80.970611]  rcu_core+0x27f/0x9d0
[   80.970636]  ? __hrtimer_run_queues+0x125/0x230
[   80.970672]  handle_softirqs+0xc3/0x270
[   80.970697]  irq_exit_rcu+0x46/0xa0
[   80.970720]  sysvec_apic_timer_interrupt+0x6b/0x80
[   80.970754]  </IRQ>
[   80.970768]  <TASK>
[   80.970781]  asm_sysvec_apic_timer_interrupt+0x1a/0x20
[   80.970816] RIP: 0010:pv_native_safe_halt+0xf/0x10
[   80.970843] Code: 48 8b 3d 74 70 2b 01 e8 1f 00 00 00 48 2b 05 b8 3f 56 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 45 96 10 00 fb f4 <c3> 0f 1f 40 d6 8b 17 89 d6 83 e6 fe 0f 01 f9 66 90 48 c1 e2 20 48
[   80.970934] RSP: 0018:ffffffffb6a03e78 EFLAGS: 00000202
[   80.970961] RAX: ff40ae3207a48000 RBX: ffffffffb6a0fa00 RCX: 0000000000000000
[   80.971004] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000004c9824
[   80.971044] RBP: 0000000000000000 R08: 00000000004c9824 R09: ff40ae3207a48000
[   80.971087] R10: 0000000000001000 R11: 0000000000000000 R12: 0000000000000000
[   80.971125] R13: 0000000000000000 R14: ffffffffb6a0f098 R15: 0000000000014770
[   80.971166]  default_idle+0x9/0x10
[   80.971188]  default_idle_call+0x2c/0x110
[   80.971211]  ? arch_cpu_idle_enter+0x10/0x20
[   80.971240]  do_idle+0x1ef/0x220
[   80.971263]  cpu_startup_entry+0x29/0x30
[   80.971282]  rest_init+0xc1/0xd0
[   80.971300]  start_kernel+0x782/0x7a0
[   80.971326]  x86_64_start_reservations+0x24/0x30
[   80.971356]  x86_64_start_kernel+0xd1/0xe0
[   80.971378]  common_startup_64+0x13e/0x148
[   80.971401]  </TASK>
[   80.971416] ---[ end trace 0000000000000000 ]---