======================================
| [   74.378594][  T501] ------------[ cut here ]------------
| [   74.378960][  T501] RTNL: assertion failed at net/core/link_watch.c (59)
| [ 74.379262][ T501] WARNING: CPU: 0 PID: 501 at net/core/link_watch.c:59 default_operstate (net/core/link_watch.c:59 (discriminator 3))
| [   74.379623][  T501] Modules linked in:
[   74.380067][  T501] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 74.380299][ T501] RIP: 0010:default_operstate (net/core/link_watch.c:59 (discriminator 3))
[ 74.380564][ T501] 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 18 af 48 c7 c7 20 72 18 af 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 18 af 	mov    $0xffffffffaf1871e0,%rsi
  1d:	48 c7 c7 20 72 18 af 	mov    $0xffffffffaf187220,%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
[   74.381307][  T501] RSP: 0018:ffffc900018b71c8 EFLAGS: 00010286
[   74.381595][  T501] RAX: 0000000000000000 RBX: ffff8880080b1000 RCX: 1ffffffff5f3b58c
[   74.381913][  T501] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001
[   74.382245][  T501] RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff5f3b58c
[   74.382638][  T501] R10: 0000000000000003 R11: ffff88800b84c5c0 R12: 0000000000000000
[   74.383001][  T501] R13: dffffc0000000000 R14: ffff888008f31000 R15: ffff8880080b1590
[   74.383367][  T501] FS:  00007fe8cc43c800(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   74.383799][  T501] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   74.384080][  T501] CR2: 00000000004e49f0 CR3: 000000000b70e001 CR4: 0000000000772ef0
[   74.384391][  T501] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   74.384755][  T501] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   74.385048][  T501] PKRU: 55555554
[   74.385196][  T501] Call Trace:
[   74.385364][  T501]  <TASK>
[ 74.385595][ T501] ? default_operstate (net/core/link_watch.c:59 (discriminator 3))
[ 74.385850][ T501] ? __warn (kernel/panic.c:748)
[ 74.386027][ T501] ? default_operstate (net/core/link_watch.c:59 (discriminator 3))
[ 74.386221][ T501] ? report_bug (lib/bug.c:201 lib/bug.c:219)
[ 74.386473][ T501] ? handle_bug (arch/x86/kernel/traps.c:285)
[ 74.386623][ T501] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1))
[ 74.386814][ T501] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621)
[ 74.386999][ T501] ? default_operstate (net/core/link_watch.c:59 (discriminator 3))
[ 74.387167][ T501] ? default_operstate (net/core/link_watch.c:59 (discriminator 3))
[ 74.387354][ T501] rfc2863_policy (net/core/link_watch.c:78)
[ 74.387580][ T501] linkwatch_do_dev (net/core/link_watch.c:180)
[ 74.387767][ T501] netdev_run_todo (net/core/dev.c:10894 (discriminator 2))
[ 74.387957][ T501] ? __pfx_netdev_run_todo (net/core/dev.c:10867)
[ 74.388177][ T501] ? __pfx_unregister_netdevice_queue (net/core/dev.c:11455)
[ 74.388498][ T501] rtnl_dellink (net/core/rtnetlink.c:3528)
[ 74.388752][ T501] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3484)
[ 74.389029][ T501] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 74.389246][ T501] ? __lock_release (kernel/locking/lockdep.c:5525)
[ 74.389435][ T501] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6900)
[ 74.389641][ T501] ? __pfx___lock_release (kernel/locking/lockdep.c:5501)
[ 74.389839][ T501] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 74.390037][ T501] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6900)
[ 74.390230][ T501] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3484)
[ 74.390414][ T501] rtnetlink_rcv_msg (net/core/rtnetlink.c:6902)
[ 74.390614][ T501] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6805)
[ 74.390819][ T501] ? 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)
[ 74.391015][ T501] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 74.391175][ T501] ? __lock_acquire (kernel/locking/lockdep.c:5226)
[ 74.391374][ T501] netlink_rcv_skb (net/netlink/af_netlink.c:2543)
[ 74.391625][ T501] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6805)
[ 74.391846][ T501] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520)
[ 74.392059][ T501] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340)
[ 74.392271][ T501] ? 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)
[ 74.392534][ T501] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348)
[ 74.392740][ T501] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333)
[ 74.392940][ T501] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 74.393139][ T501] netlink_sendmsg (net/netlink/af_netlink.c:1892)
[ 74.393339][ T501] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811)
[ 74.393577][ T501] ____sys_sendmsg (net/socket.c:711 net/socket.c:726 net/socket.c:2594)
[ 74.393802][ T501] ? __pfx_____sys_sendmsg (net/socket.c:2540)
[ 74.394003][ T501] ? __pfx_copy_msghdr_from_user (net/socket.c:2520)
[ 74.394250][ T501] ___sys_sendmsg (net/socket.c:2650)
[ 74.394474][ T501] ? __pfx____sys_sendmsg (net/socket.c:2637)
[ 74.394699][ T501] ? kasan_save_stack (mm/kasan/common.c:49)
[ 74.394925][ T501] ? kasan_save_stack (mm/kasan/common.c:48)
[ 74.395164][ T501] ? __kasan_record_aux_stack (mm/kasan/generic.c:544)
[ 74.395406][ T501] ? __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)
[ 74.395734][ T501] ? __x64_sys_close (fs/open.c:1557 fs/open.c:1539 fs/open.c:1539)
[ 74.395972][ T501] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 74.396204][ T501] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 74.396490][ T501] ? __lock_acquire (kernel/locking/lockdep.c:5226)
[ 74.396727][ T501] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 74.396950][ T501] ? __lock_release (kernel/locking/lockdep.c:5525)
[ 74.397156][ T501] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2058 arch/x86/mm/physaddr.c:65)
[ 74.397394][ T501] ? __pfx___lock_release (kernel/locking/lockdep.c:5501)
[ 74.397625][ T501] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 74.397868][ T501] __sys_sendmsg (net/socket.c:2680)
[ 74.398097][ T501] ? __pfx___sys_sendmsg (net/socket.c:2665)
[ 74.398318][ T501] ? __pfx_slab_free_after_rcu_debug (mm/slub.c:4643)
[ 74.398596][ T501] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 74.398793][ T501] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   74.399022][  T501] RIP: 0033:0x7fe8cc6489a7
[ 74.399220][ T501] 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)
[   74.399977][  T501] RSP: 002b:00007ffeebb8d1f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   74.400350][  T501] RAX: ffffffffffffffda RBX: 00007ffeebb8d930 RCX: 00007fe8cc6489a7
[   74.400711][  T501] RDX: 0000000000000000 RSI: 00007ffeebb8d260 RDI: 0000000000000005
[   74.401006][  T501] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078
[   74.401306][  T501] R10: 00007fe8cc5064a8 R11: 0000000000000246 R12: 0000000000000001


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