======================================
| [   30.291963][  T435] ------------[ cut here ]------------
| [   30.292267][  T435] RTNL: assertion failed at net/core/link_watch.c (59)
| [ 30.292560][ T435] WARNING: CPU: 2 PID: 435 at net/core/link_watch.c:59 default_operstate (net/core/link_watch.c:59 (discriminator 3))
| [   30.292878][  T435] Modules linked in: openvswitch psample nf_nat nf_conntrack libcrc32c nf_defrag_ipv6 nf_defrag_ipv4 nsh
[   30.293525][  T435] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 30.293750][ T435] RIP: 0010:default_operstate (net/core/link_watch.c:59 (discriminator 3))
[ 30.293940][ T435] Code: 83 e4 01 0f 85 03 ff ff ff c6 05 08 23 5c 02 01 90 ba 3b 00 00 00 48 c7 c6 00 7c 97 86 48 c7 c7 40 7c 97 86 e8 b3 b2 e5 fd 90 <0f> 0b 90 90 e9 d9 fe ff ff 48 89 ef e8 81 63 6d 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 08 23 5c 02 01 	movb   $0x1,0x25c2308(%rip)        # 0x25c2318
  10:	90                   	nop
  11:	ba 3b 00 00 00       	mov    $0x3b,%edx
  16:	48 c7 c6 00 7c 97 86 	mov    $0xffffffff86977c00,%rsi
  1d:	48 c7 c7 40 7c 97 86 	mov    $0xffffffff86977c40,%rdi
  24:	e8 b3 b2 e5 fd       	call   0xfffffffffde5b2dc
  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 81 63 6d fe       	call   0xfffffffffe6d63bc
  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 81 63 6d fe       	call   0xfffffffffe6d6392
  11:	e9 f7 fd ff ff       	jmp    0xfffffffffffffe0d
[   30.294550][  T435] RSP: 0018:ffffc900009171c8 EFLAGS: 00010286
[   30.294776][  T435] RAX: 0000000000000000 RBX: ffff888008d31000 RCX: 1ffffffff0e3dd8c
[   30.295036][  T435] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001
[   30.295326][  T435] RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff0e3dd8c
[   30.295592][  T435] R10: 0000000000000003 R11: ffff88800c15a300 R12: 0000000000000000
[   30.295852][  T435] R13: dffffc0000000000 R14: ffff888008a1c000 R15: ffff888008d315c0
[   30.296115][  T435] FS:  00007f43c85ac800(0000) GS:ffff88806d100000(0000) knlGS:0000000000000000
[   30.296436][  T435] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.296663][  T435] CR2: 000055fe7ea07d28 CR3: 00000000095a8003 CR4: 0000000000772ef0
[   30.296926][  T435] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   30.297196][  T435] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   30.297472][  T435] PKRU: 55555554
[   30.297615][  T435] Call Trace:
[   30.297756][  T435]  <TASK>
[ 30.297861][ T435] ? default_operstate (net/core/link_watch.c:59 (discriminator 3))
[ 30.298051][ T435] ? __warn (kernel/panic.c:748)
[ 30.298196][ T435] ? default_operstate (net/core/link_watch.c:59 (discriminator 3))
[ 30.298390][ T435] ? report_bug (lib/bug.c:201 lib/bug.c:219)
[ 30.298576][ T435] ? handle_bug (arch/x86/kernel/traps.c:285)
[ 30.298718][ T435] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1))
[ 30.298894][ T435] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621)
[ 30.299084][ T435] ? default_operstate (net/core/link_watch.c:59 (discriminator 3))
[ 30.299268][ T435] ? default_operstate (net/core/link_watch.c:59 (discriminator 3))
[ 30.299476][ T435] rfc2863_policy (net/core/link_watch.c:78)
[ 30.299665][ T435] linkwatch_do_dev (net/core/link_watch.c:180)
[ 30.299849][ T435] netdev_run_todo (net/core/dev.c:10894 (discriminator 2))
[ 30.300035][ T435] ? __pfx_netdev_run_todo (net/core/dev.c:10867)
[ 30.300214][ T435] ? __pfx_unregister_netdevice_queue (net/core/dev.c:11455)
[ 30.300459][ T435] rtnl_dellink (net/core/rtnetlink.c:3528)
[ 30.300648][ T435] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3484)
[ 30.300882][ T435] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 30.301066][ T435] ? __lock_release (kernel/locking/lockdep.c:5525)
[ 30.301245][ T435] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6900)
[ 30.301433][ T435] ? __pfx___lock_release (kernel/locking/lockdep.c:5501)
[ 30.301629][ T435] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 30.301817][ T435] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6900)
[ 30.302009][ T435] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3484)
[ 30.302189][ T435] rtnetlink_rcv_msg (net/core/rtnetlink.c:6902)
[ 30.302386][ T435] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6805)
[ 30.302570][ T435] ? 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)
[ 30.302749][ T435] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 30.302896][ T435] ? __lock_acquire (kernel/locking/lockdep.c:5226)
[ 30.303079][ T435] netlink_rcv_skb (net/netlink/af_netlink.c:2543)
[ 30.303267][ T435] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6805)
[ 30.303478][ T435] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520)
[ 30.303674][ T435] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340)
[ 30.303857][ T435] ? 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)
[ 30.304043][ T435] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348)
[ 30.304227][ T435] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333)
[ 30.304422][ T435] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 30.304608][ T435] netlink_sendmsg (net/netlink/af_netlink.c:1892)
[ 30.304794][ T435] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811)
[ 30.304983][ T435] ____sys_sendmsg (net/socket.c:711 net/socket.c:726 net/socket.c:2594)
[ 30.305167][ T435] ? __pfx_____sys_sendmsg (net/socket.c:2540)
[ 30.305353][ T435] ? __pfx_copy_msghdr_from_user (net/socket.c:2520)
[ 30.305592][ T435] ___sys_sendmsg (net/socket.c:2650)
[ 30.305771][ T435] ? __pfx____sys_sendmsg (net/socket.c:2637)
[ 30.305950][ T435] ? kasan_save_stack (mm/kasan/common.c:49)
[ 30.306130][ T435] ? kasan_save_stack (mm/kasan/common.c:48)
[ 30.306319][ T435] ? __kasan_record_aux_stack (mm/kasan/generic.c:544)
[ 30.306506][ T435] ? __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)
[ 30.306734][ T435] ? __x64_sys_close (fs/open.c:1557 fs/open.c:1539 fs/open.c:1539)
[ 30.306914][ T435] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 30.307091][ T435] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 30.307331][ T435] ? __lock_acquire (kernel/locking/lockdep.c:5226)
[ 30.307520][ T435] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 30.307701][ T435] ? __lock_release (kernel/locking/lockdep.c:5525)
[ 30.307877][ T435] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2058 arch/x86/mm/physaddr.c:65)
[ 30.308068][ T435] ? __pfx___lock_release (kernel/locking/lockdep.c:5501)
[ 30.308245][ T435] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 30.308441][ T435] __sys_sendmsg (net/socket.c:2680)
[ 30.308618][ T435] ? __pfx___sys_sendmsg (net/socket.c:2665)
[ 30.308798][ T435] ? __pfx_slab_free_after_rcu_debug (mm/slub.c:4643)
[ 30.309035][ T435] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 30.309215][ T435] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   30.309445][  T435] RIP: 0033:0x7f43c87b89a7
[ 30.309632][ T435] 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)
[   30.310215][  T435] RSP: 002b:00007ffc6b1bfc68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   30.310490][  T435] RAX: ffffffffffffffda RBX: 00007ffc6b1c0390 RCX: 00007f43c87b89a7
[   30.310757][  T435] RDX: 0000000000000000 RSI: 00007ffc6b1bfcd0 RDI: 0000000000000005
[   30.311017][  T435] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078
[   30.311304][  T435] R10: 00007f43c8676ef8 R11: 0000000000000246 R12: 0000000000000001


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