======================================
| [   69.695906][  T506] ------------[ cut here ]------------
| [   69.696229][  T506] RTNL: assertion failed at net/core/link_watch.c (59)
| [ 69.696516][ T506] WARNING: CPU: 2 PID: 506 at net/core/link_watch.c:59 default_operstate (net/core/link_watch.c:59 (discriminator 3))
| [   69.696829][  T506] Modules linked in:
[   69.697273][  T506] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 69.697583][ T506] RIP: 0010:default_operstate (net/core/link_watch.c:59 (discriminator 3))
[ 69.697836][ T506] Code: 83 e4 01 0f 85 03 ff ff ff c6 05 5a 91 34 02 01 90 ba 3b 00 00 00 48 c7 c6 e0 71 d8 9a 48 c7 c7 20 72 d8 9a e8 03 5c e3 fd 90 <0f> 0b 90 90 e9 d9 fe ff ff 48 89 ef e8 e1 82 6a fe e9 f7 fd ff ff
All code
========
   0:	83 e4 01             	and    $0x1,%esp
   3:	0f 85 03 ff ff ff    	jne    0xffffffffffffff0c
   9:	c6 05 5a 91 34 02 01 	movb   $0x1,0x234915a(%rip)        # 0x234916a
  10:	90                   	nop
  11:	ba 3b 00 00 00       	mov    $0x3b,%edx
  16:	48 c7 c6 e0 71 d8 9a 	mov    $0xffffffff9ad871e0,%rsi
  1d:	48 c7 c7 20 72 d8 9a 	mov    $0xffffffff9ad87220,%rdi
  24:	e8 03 5c e3 fd       	call   0xfffffffffde35c2c
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	90                   	nop
  2e:	e9 d9 fe ff ff       	jmp    0xffffffffffffff0c
  33:	48 89 ef             	mov    %rbp,%rdi
  36:	e8 e1 82 6a fe       	call   0xfffffffffe6a831c
  3b:	e9 f7 fd ff ff       	jmp    0xfffffffffffffe37

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	90                   	nop
   4:	e9 d9 fe ff ff       	jmp    0xfffffffffffffee2
   9:	48 89 ef             	mov    %rbp,%rdi
   c:	e8 e1 82 6a fe       	call   0xfffffffffe6a82f2
  11:	e9 f7 fd ff ff       	jmp    0xfffffffffffffe0d
[   69.698717][  T506] RSP: 0018:ffffc900019271c8 EFLAGS: 00010286
[   69.699097][  T506] RAX: 0000000000000000 RBX: ffff8880088d4000 RCX: 1ffffffff36bb58c
[   69.699676][  T506] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001
[   69.700210][  T506] RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff36bb58c
[   69.700564][  T506] R10: 0000000000000003 R11: ffff88800d37a300 R12: 0000000000000000
[   69.700928][  T506] R13: dffffc0000000000 R14: ffff888007089000 R15: ffff8880088d4590
[   69.701326][  T506] FS:  00007f0ae488e800(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   69.701746][  T506] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   69.702073][  T506] CR2: 00000000004e49f0 CR3: 000000000ac04001 CR4: 0000000000772ef0
[   69.702505][  T506] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   69.702936][  T506] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   69.703367][  T506] PKRU: 55555554
[   69.703615][  T506] Call Trace:
[   69.703847][  T506]  <TASK>
[ 69.704016][ T506] ? default_operstate (net/core/link_watch.c:59 (discriminator 3))
[ 69.704281][ T506] ? __warn (kernel/panic.c:748)
[ 69.704458][ T506] ? default_operstate (net/core/link_watch.c:59 (discriminator 3))
[ 69.704694][ T506] ? report_bug (lib/bug.c:201 lib/bug.c:219)
[ 69.704888][ T506] ? handle_bug (arch/x86/kernel/traps.c:285)
[ 69.705076][ T506] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1))
[ 69.705271][ T506] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621)
[ 69.705462][ T506] ? default_operstate (net/core/link_watch.c:59 (discriminator 3))
[ 69.705659][ T506] ? default_operstate (net/core/link_watch.c:59 (discriminator 3))
[ 69.705904][ T506] rfc2863_policy (net/core/link_watch.c:78)
[ 69.706159][ T506] linkwatch_do_dev (net/core/link_watch.c:180)
[ 69.706340][ T506] netdev_run_todo (net/core/dev.c:10894 (discriminator 2))
[ 69.706606][ T506] ? __pfx_netdev_run_todo (net/core/dev.c:10867)
[ 69.706798][ T506] ? __pfx_unregister_netdevice_queue (net/core/dev.c:11455)
[ 69.707108][ T506] rtnl_dellink (net/core/rtnetlink.c:3528)
[ 69.707351][ T506] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3484)
[ 69.707603][ T506] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 69.707789][ T506] ? __lock_release (kernel/locking/lockdep.c:5525)
[ 69.708055][ T506] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6900)
[ 69.708242][ T506] ? __pfx___lock_release (kernel/locking/lockdep.c:5501)
[ 69.708421][ T506] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 69.708627][ T506] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6900)
[ 69.708870][ T506] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3484)
[ 69.709135][ T506] rtnetlink_rcv_msg (net/core/rtnetlink.c:6902)
[ 69.709357][ T506] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6805)
[ 69.709554][ T506] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228)
[ 69.709800][ T506] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 69.709952][ T506] ? __lock_acquire (kernel/locking/lockdep.c:5226)
[ 69.710240][ T506] netlink_rcv_skb (net/netlink/af_netlink.c:2543)
[ 69.710530][ T506] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6805)
[ 69.710766][ T506] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520)
[ 69.711062][ T506] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340)
[ 69.711295][ T506] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333)
[ 69.711513][ T506] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348)
[ 69.711706][ T506] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333)
[ 69.711886][ T506] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 69.712109][ T506] netlink_sendmsg (net/netlink/af_netlink.c:1892)
[ 69.712368][ T506] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811)
[ 69.712630][ T506] ____sys_sendmsg (net/socket.c:711 net/socket.c:726 net/socket.c:2594)
[ 69.712874][ T506] ? __pfx_____sys_sendmsg (net/socket.c:2540)
[ 69.713119][ T506] ? __pfx_copy_msghdr_from_user (net/socket.c:2520)
[ 69.713372][ T506] ___sys_sendmsg (net/socket.c:2650)
[ 69.713573][ T506] ? __pfx____sys_sendmsg (net/socket.c:2637)
[ 69.713754][ T506] ? kasan_save_stack (mm/kasan/common.c:49)
[ 69.713936][ T506] ? kasan_save_stack (mm/kasan/common.c:48)
[ 69.714130][ T506] ? __kasan_record_aux_stack (mm/kasan/generic.c:544)
[ 69.714312][ T506] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:87 ./arch/x86/include/asm/irqflags.h:123 kernel/rcu/tree.c:3087)
[ 69.714555][ T506] ? __x64_sys_close (fs/open.c:1557 fs/open.c:1539 fs/open.c:1539)
[ 69.714740][ T506] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 69.714917][ T506] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 69.715153][ T506] ? __lock_acquire (kernel/locking/lockdep.c:5226)
[ 69.715340][ T506] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 69.715541][ T506] ? __lock_release (kernel/locking/lockdep.c:5525)
[ 69.715720][ T506] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2058 arch/x86/mm/physaddr.c:65)
[ 69.715900][ T506] ? __pfx___lock_release (kernel/locking/lockdep.c:5501)
[ 69.716110][ T506] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 69.716297][ T506] __sys_sendmsg (net/socket.c:2680)
[ 69.716477][ T506] ? __pfx___sys_sendmsg (net/socket.c:2665)
[ 69.716670][ T506] ? __pfx_slab_free_after_rcu_debug (mm/slub.c:4643)
[ 69.716913][ T506] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 69.717183][ T506] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   69.717405][  T506] RIP: 0033:0x7f0ae4a9a9a7
[ 69.717606][ T506] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0a 00                	or     (%rax),%al
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   69.718227][  T506] RSP: 002b:00007ffc7638b578 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   69.718527][  T506] RAX: ffffffffffffffda RBX: 00007ffc7638bcb0 RCX: 00007f0ae4a9a9a7
[   69.718812][  T506] RDX: 0000000000000000 RSI: 00007ffc7638b5e0 RDI: 0000000000000005
[   69.719111][  T506] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078
[   69.719467][  T506] R10: 00007f0ae49584a8 R11: 0000000000000246 R12: 0000000000000001


Finger prints:
default_operstate:rfc2863_policy:linkwatch_do_dev:netdev_run_todo:rtnl_dellink