======================================
| [   33.940681] #PF: supervisor read access in kernel mode
| [   33.940710] #PF: error_code(0x0000) - not-present page
| [   33.940739] PGD 4f5c067 P4D 4d90067 PUD 4d91067 PMD 0
| [   33.940774] Oops: Oops: 0000 [#1] SMP
[   33.940843] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   33.940884] RIP: 0010:macvlan_port_release_mac (drivers/net/macvlan.c:128 (discriminator 1) drivers/net/macvlan.c:803 (discriminator 1))
[   33.940916] Code: 10 eb d9 0f 1f 40 00 0f 1f 44 00 00 48 81 ec 88 00 00 00 65 48 8b 05 4c a1 6b 01 48 89 84 24 80 00 00 00 48 8b 87 00 01 00 00 <f6> 80 58 08 00 00 01 74 24 48 8b 10 48 8b 92 58 04 00 00 8b 0a 0f
All code
========
   0:	10 eb                	adc    %ch,%bl
   2:	d9 0f                	(bad) (%rdi)
   4:	1f                   	(bad)
   5:	40 00 0f             	rex add %cl,(%rdi)
   8:	1f                   	(bad)
   9:	44 00 00             	add    %r8b,(%rax)
   c:	48 81 ec 88 00 00 00 	sub    $0x88,%rsp
  13:	65 48 8b 05 4c a1 6b 	mov    %gs:0x16ba14c(%rip),%rax        # 0x16ba167
  1a:	01 
  1b:	48 89 84 24 80 00 00 	mov    %rax,0x80(%rsp)
  22:	00 
  23:	48 8b 87 00 01 00 00 	mov    0x100(%rdi),%rax
  2a:*	f6 80 58 08 00 00 01 	testb  $0x1,0x858(%rax)		<-- trapping instruction
  31:	74 24                	je     0x57
  33:	48 8b 10             	mov    (%rax),%rdx
  36:	48 8b 92 58 04 00 00 	mov    0x458(%rdx),%rdx
  3d:	8b 0a                	mov    (%rdx),%ecx
  3f:	0f                   	.byte 0xf

Code starting with the faulting instruction
===========================================
   0:	f6 80 58 08 00 00 01 	testb  $0x1,0x858(%rax)
   7:	74 24                	je     0x2d
   9:	48 8b 10             	mov    (%rax),%rdx
   c:	48 8b 92 58 04 00 00 	mov    0x458(%rdx),%rdx
  13:	8b 0a                	mov    (%rdx),%ecx
  15:	0f                   	.byte 0xf
[   33.941015] RSP: 0018:ff3d403041e73698 EFLAGS: 00010292
[   33.941046] RAX: 0000000000000000 RBX: ff1282ea06664000 RCX: 0000000000000000
[   33.941088] RDX: 0000000000000000 RSI: ff1282ea06664818 RDI: ff1282ea06793000
[   33.941135] RBP: ff1282ea06664818 R08: ff1282ea011257c0 R09: 0000000000000000
[   33.941174] R10: 0000000000000000 R11: 0000000000000001 R12: ff1282ea06793000
[   33.941214] R13: ff1282ea018f8b00 R14: ff1282ea0b22ae80 R15: 0000000000000003
[   33.941257] FS:  00007f19b3a38840(0000) GS:ff1282ea98a37000(0000) knlGS:0000000000000000
[   33.941303] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   33.941337] CR2: 0000000000000858 CR3: 0000000006c9f006 CR4: 0000000000771ef0
[   33.941378] PKRU: 55555554
[   33.941392] Call Trace:
[   33.941405]  <TASK>
[   33.941420]  ? enable_work (kernel/workqueue.c:2200 kernel/workqueue.c:4624)
[   33.941443]  ? cancel_work_sync (kernel/workqueue.c:4497 kernel/workqueue.c:4531)
[   33.941463]  macvlan_port_destroy (drivers/net/macvlan.c:1344)
[   33.941482]  unregister_netdevice_many_notify (net/core/dev.c:12460)
[   33.941511]  rtnl_dellink (net/core/rtnetlink.c:3601 net/core/rtnetlink.c:3643)
[   33.941533]  ? rtnl_dellinkprop (net/core/rtnetlink.c:4426)
[   33.941552]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7079)
[   33.941573]  ? get_page_from_freelist (mm/page_alloc.c:1857 mm/page_alloc.c:1867 mm/page_alloc.c:3946)
[   33.941604]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[   33.941633]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   33.941658]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   33.941676]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   33.941696]  ____sys_sendmsg (net/socket.c:775 (discriminator 4) net/socket.c:790 (discriminator 4) net/socket.c:2684 (discriminator 4))
[   33.941719]  ___sys_sendmsg (net/socket.c:2738)
[   33.941738]  __sys_sendmsg (net/socket.c:2770)
[   33.941757]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   33.941782]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   33.941812] RIP: 0033:0x7f19b3c7154e
[   33.941832] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   33.941936] RSP: 002b:00007fff693b2800 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   33.941979] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f19b3c7154e
[   33.942020] RDX: 0000000000000000 RSI: 00007fff693b28b0 RDI: 0000000000000005
[   33.942059] RBP: 00007fff693b2810 R08: 0000000000000000 R09: 0000000000000000
[   33.942102] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a506da2


Finger prints:
macvlan_port_release_mac:macvlan_port_destroy:unregister_netdevice_many_notify:rtnl_dellink:rtnetlink_rcv_msg