======================================
| [   19.093960][  T300] veth1: entered promiscuous mode
| [   19.096299][  T300] ------------[ cut here ]------------
| [ 19.096657][ T300] WARNING: CPU: 2 PID: 300 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   19.097304][  T300] Modules linked in: bridge stp llc vrf veth
[   19.098845][  T300] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.099420][ T300] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 19.099947][ T300] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa 61 7b 00       	call   0x7b621b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   19.101249][  T300] RSP: 0018:ffffc90000666ef0 EFLAGS: 00010246
[   19.101745][  T300] RAX: 0000000000000000 RBX: ffff8880128ea000 RCX: 0000000000000001
[   19.102255][  T300] RDX: 0000000000000000 RSI: ffffffffab89b939 RDI: ffffffffab0555e0
[   19.102744][  T300] RBP: ffffc90000666fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.103253][  T300] R10: ffffc90000667010 R11: ffffffffac6a8918 R12: 1ffff920000ccde2
[   19.103766][  T300] R13: 00000000000005dc R14: ffffc90000667010 R15: ffff8880128eaf08
[   19.104256][  T300] FS:  00007f4a83234800(0000) GS:ffff8880889b7000(0000) knlGS:0000000000000000
[   19.105025][  T300] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.105453][  T300] CR2: 00000000004e5aa8 CR3: 00000000147bc006 CR4: 0000000000772ef0
[   19.105946][  T300] PKRU: 55555554
[   19.106193][  T300] Call Trace:
[   19.106445][  T300]  <TASK>
[ 19.106644][ T300] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.106976][ T300] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.107317][ T300] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.107655][ T300] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.108059][ T300] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.108385][ T300] netif_set_mtu (net/core/dev.c:9652) 
[ 19.108723][ T300] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.109074][ T300] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.109541][ T300] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.109812][ T300] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.110287][ T300] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.110688][ T300] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 19.111029][ T300] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.111358][ T300] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.111801][ T300] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.112136][ T300] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.112456][ T300] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.112810][ T300] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.113135][ T300] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 19.113468][ T300] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.113879][ T300] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.114202][ T300] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.114527][ T300] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.114869][ T300] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.115197][ T300] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.115537][ T300] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.115885][ T300] ? __create_object (mm/kmemleak.c:771) 
[ 19.116227][ T300] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.116571][ T300] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.116909][ T300] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.117311][ T300] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.117658][ T300] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.118010][ T300] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.118332][ T300] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.118690][ T300] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.119014][ T300] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.119348][ T300] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.119700][ T300] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.120038][ T300] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.120364][ T300] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.120713][ T300] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.121052][ T300] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.121376][ T300] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.121705][ T300] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.122065][ T300] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.122387][ T300] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 19.122731][ T300] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 19.123053][ T300] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.123371][ T300] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.123719][ T300] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.124063][ T300] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.124389][ T300] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.124727][ T300] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.125060][ T300] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.125401][ T300] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.125849][ T300] ___sys_sendmsg (net/socket.c:2670) 
[ 19.126182][ T300] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.126504][ T300] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 19.126933][ T300] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.127275][ T300] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.127600][ T300] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.127938][ T300] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.128258][ T300] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.128595][ T300] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.129224][ T300] __sys_sendmsg (net/socket.c:2700) 
[ 19.129579][ T300] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.130221][ T300] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.130560][ T300] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.130893][ T300] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.131219][ T300] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.131620][  T300] RIP: 0033:0x7f4a834011e7
[ 19.131998][ T300] Code: 0e 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:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   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)
[   19.133155][  T300] RSP: 002b:00007ffc2c8bb8e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.133686][  T300] RAX: ffffffffffffffda RBX: 00007ffc2c8bc010 RCX: 00007f4a834011e7
[   19.134474][  T300] RDX: 0000000000000000 RSI: 00007ffc2c8bb950 RDI: 0000000000000005
[   19.135037][  T300] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.135803][  T300] R10: 000000003c7c9910 R11: 0000000000000246 R12: 0000000000000004
[   19.136281][  T300] R13: 00000000686e6440 R14: 0000000000499600 R15: 0000000000000000
| [   19.248999][  T301] ------------[ cut here ]------------
| [ 19.249352][ T301] WARNING: CPU: 2 PID: 301 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   19.250016][  T301] Modules linked in: bridge stp llc vrf veth
| [   19.251117][  T301] Tainted: [W]=WARN
[   19.251383][  T301] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.251812][ T301] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 19.252160][ T301] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa 61 7b 00       	call   0x7b621b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   19.253304][  T301] RSP: 0018:ffffc90000666ef0 EFLAGS: 00010246
[   19.253731][  T301] RAX: 0000000000000000 RBX: ffff8880128ea000 RCX: 0000000000000001
[   19.254238][  T301] RDX: 0000000000000000 RSI: ffffffffab89b939 RDI: ffffffffab0555e0
[   19.254758][  T301] RBP: ffffc90000666fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.255259][  T301] R10: ffffc90000667010 R11: ffffffffac6a8918 R12: 1ffff920000ccde2
[   19.255753][  T301] R13: 00000000000005dc R14: ffffc90000667010 R15: ffff8880128eaf08
[   19.256247][  T301] FS:  00007f9c86e24800(0000) GS:ffff8880889b7000(0000) knlGS:0000000000000000
[   19.256821][  T301] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.257251][  T301] CR2: 00000000004e5ab0 CR3: 0000000012244004 CR4: 0000000000772ef0
[   19.257748][  T301] PKRU: 55555554
[   19.258006][  T301] Call Trace:
[   19.258264][  T301]  <TASK>
[ 19.258453][ T301] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.258818][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.259184][ T301] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.259517][ T301] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.259944][ T301] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.260317][ T301] netif_set_mtu (net/core/dev.c:9652) 
[ 19.260683][ T301] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.261043][ T301] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.261522][ T301] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.261804][ T301] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.262266][ T301] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.262703][ T301] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 19.263047][ T301] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.263387][ T301] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.263837][ T301] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.264189][ T301] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.264525][ T301] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.264875][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.265224][ T301] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 19.265560][ T301] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.265986][ T301] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.266340][ T301] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.266688][ T301] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.267040][ T301] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.267378][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.267730][ T301] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.268065][ T301] ? __create_object (mm/kmemleak.c:771) 
[ 19.268420][ T301] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.268775][ T301] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.269109][ T301] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.269524][ T301] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.269876][ T301] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.270221][ T301] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.270556][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.270927][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.271282][ T301] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.271644][ T301] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.272009][ T301] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.272354][ T301] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.272712][ T301] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.273078][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.273425][ T301] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.273773][ T301] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.274107][ T301] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.274470][ T301] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.274829][ T301] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 19.275189][ T301] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 19.275543][ T301] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.275888][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.276232][ T301] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.276579][ T301] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.276927][ T301] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.277286][ T301] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.277693][ T301] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.278037][ T301] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.278465][ T301] ___sys_sendmsg (net/socket.c:2670) 
[ 19.278809][ T301] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.279155][ T301] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 19.279584][ T301] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.279931][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.280291][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.280654][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.280990][ T301] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.281323][ T301] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.281672][ T301] __sys_sendmsg (net/socket.c:2700) 
[ 19.282019][ T301] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.282446][ T301] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.282824][ T301] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.283173][ T301] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.283526][ T301] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.283966][  T301] RIP: 0033:0x7f9c86ff11e7
[ 19.284332][ T301] Code: 0e 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:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   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)
[   19.285778][  T301] RSP: 002b:00007ffc80e192e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.286296][  T301] RAX: ffffffffffffffda RBX: 00007ffc80e19a10 RCX: 00007f9c86ff11e7
[   19.286816][  T301] RDX: 0000000000000000 RSI: 00007ffc80e19350 RDI: 0000000000000005
[   19.287341][  T301] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.287885][  T301] R10: 00000000293ca910 R11: 0000000000000246 R12: 0000000000000004
[   19.288379][  T301] R13: 00000000686e6441 R14: 0000000000499600 R15: 0000000000000000
| [  125.544684][  T605] ------------[ cut here ]------------
| [ 125.545033][ T605] WARNING: CPU: 2 PID: 605 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  125.546109][  T605] Modules linked in: act_gact cls_flower sch_ingress bridge stp llc vrf veth
| [  125.547337][  T605] Tainted: [W]=WARN
[  125.547585][  T605] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 125.547994][ T605] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 125.548328][ T605] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa 61 7b 00       	call   0x7b621b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  125.549463][  T605] RSP: 0018:ffffc90001306f70 EFLAGS: 00010246
[  125.549882][  T605] RAX: 0000000000000000 RBX: ffff8880128ea000 RCX: 0000000000000001
[  125.550352][  T605] RDX: 0000000000000000 RSI: ffffffffab89b939 RDI: ffffffffab0555e0
[  125.550840][  T605] RBP: ffffc90001307058 R08: 0000000000000000 R09: 0000000000000000
[  125.551308][  T605] R10: ffffc90001307088 R11: ffffffffa7c00130 R12: 1ffff92000260df2
[  125.551799][  T605] R13: 00000000000005dc R14: ffffc90001307088 R15: ffff8880128eaf08
[  125.552287][  T605] FS:  00007ff1e265f800(0000) GS:ffff8880889b7000(0000) knlGS:0000000000000000
[  125.552857][  T605] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  125.553255][  T605] CR2: 00000000004e5aa8 CR3: 0000000012be3005 CR4: 0000000000772ef0
[  125.553747][  T605] PKRU: 55555554
[  125.553986][  T605] Call Trace:
[  125.554230][  T605]  <TASK>
[ 125.554398][ T605] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 125.554805][ T605] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 125.555166][ T605] ? do_set_master (net/core/rtnetlink.c:2932) 
[ 125.555482][ T605] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 125.555812][ T605] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 125.556137][ T605] ? netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 125.556452][ T605] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 125.556791][ T605] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 125.557119][ T605] ? ___sys_sendmsg (net/socket.c:2670) 
[ 125.557430][ T605] ? __sys_sendmsg (net/socket.c:2700) 
[ 125.557756][ T605] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 125.558069][ T605] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 125.558469][ T605] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 125.558808][ T605] netif_set_mtu (net/core/dev.c:9652) 
[ 125.559129][ T605] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 125.559461][ T605] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 125.559719][ T605] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 125.560153][ T605] br_del_if (net/bridge/br_if.c:743) bridge 
[ 125.560519][ T605] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 125.560861][ T605] do_set_master (net/core/rtnetlink.c:2932) 
[ 125.561198][ T605] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 125.561518][ T605] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 125.561937][ T605] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 125.562257][ T605] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 125.562578][ T605] ? __kernel_text_address (kernel/extable.c:79) 
[ 125.562907][ T605] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.563230][ T605] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 125.563548][ T605] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 125.563951][ T605] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 125.564270][ T605] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 125.564584][ T605] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 125.564922][ T605] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 125.565239][ T605] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 125.565551][ T605] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 125.565881][ T605] ? __create_object (mm/kmemleak.c:771) 
[ 125.566200][ T605] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 125.566516][ T605] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 125.566860][ T605] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 125.567251][ T605] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 125.567572][ T605] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 125.567905][ T605] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 125.568219][ T605] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.568548][ T605] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 125.568885][ T605] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 125.569203][ T605] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 125.569520][ T605] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 125.569848][ T605] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 125.570166][ T605] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 125.570487][ T605] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.570814][ T605] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 125.571141][ T605] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 125.571456][ T605] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 125.571796][ T605] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 125.572144][ T605] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 125.572465][ T605] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 125.572809][ T605] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 125.573133][ T605] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.573456][ T605] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 125.573788][ T605] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 125.574104][ T605] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 125.574424][ T605] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 125.574757][ T605] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 125.575075][ T605] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 125.575479][ T605] ___sys_sendmsg (net/socket.c:2670) 
[ 125.575808][ T605] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 125.576125][ T605] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 125.576516][ T605] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 125.576863][ T605] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 125.577186][ T605] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.577511][ T605] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 125.577846][ T605] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 125.578170][ T605] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 125.578498][ T605] __sys_sendmsg (net/socket.c:2700) 
[ 125.578833][ T605] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 125.579227][ T605] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 125.579558][ T605] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 125.579891][ T605] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 125.580210][ T605] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  125.580645][  T605] RIP: 0033:0x7ff1e282c1e7
[ 125.580977][ T605] Code: 0e 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:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   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)
[  125.582089][  T605] RSP: 002b:00007ffc074a1dc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  125.582563][  T605] RAX: ffffffffffffffda RBX: 00007ffc074a24f0 RCX: 00007ff1e282c1e7
[  125.583051][  T605] RDX: 0000000000000000 RSI: 00007ffc074a1e30 RDI: 0000000000000005
[  125.583516][  T605] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[  125.583996][  T605] R10: 00007ff1e2729ee8 R11: 0000000000000246 R12: 0000000000000002
[  125.584463][  T605] R13: 00000000686e64ab R14: 0000000000499600 R15: 0000000000000000
| [  125.719959][  T606] ------------[ cut here ]------------
| [ 125.720260][ T606] WARNING: CPU: 0 PID: 606 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  125.721556][  T606] Modules linked in: act_gact cls_flower sch_ingress bridge stp llc vrf veth
| [  125.722758][  T606] Tainted: [W]=WARN
[  125.722990][  T606] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 125.723369][ T606] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 125.723706][ T606] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa 61 7b 00       	call   0x7b621b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  125.724824][  T606] RSP: 0018:ffffc90001306ef0 EFLAGS: 00010246
[  125.725215][  T606] RAX: 0000000000000000 RBX: ffff8880128ea000 RCX: 0000000000000001
[  125.725679][  T606] RDX: 0000000000000000 RSI: ffffffffab89b939 RDI: ffffffffab0555e0
[  125.726135][  T606] RBP: ffffc90001306fe0 R08: 0000000000000000 R09: 0000000000000000
[  125.726595][  T606] R10: ffffc90001307010 R11: ffffffffac6a8918 R12: 1ffff92000260de2
[  125.727061][  T606] R13: 00000000000005dc R14: ffffc90001307010 R15: ffff8880128eaf08
[  125.727515][  T606] FS:  00007f5f7d9e0800(0000) GS:ffff8880888b7000(0000) knlGS:0000000000000000
[  125.728068][  T606] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  125.728458][  T606] CR2: 00000000004e5aa8 CR3: 000000000505f005 CR4: 0000000000772ef0
[  125.729077][  T606] PKRU: 55555554
[  125.729309][  T606] Call Trace:
[  125.729537][  T606]  <TASK>
[ 125.729847][ T606] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 125.730156][ T606] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 125.730466][ T606] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 125.730891][ T606] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 125.731277][ T606] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 125.731583][ T606] netif_set_mtu (net/core/dev.c:9652) 
[ 125.731912][ T606] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 125.732230][ T606] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 125.732670][ T606] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 125.732901][ T606] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 125.733326][ T606] br_add_if (net/bridge/br_if.c:697) bridge 
[ 125.733690][ T606] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 125.734002][ T606] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 125.734310][ T606] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 125.734704][ T606] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 125.735007][ T606] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 125.735309][ T606] ? __kernel_text_address (kernel/extable.c:79) 
[ 125.735637][ T606] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.735945][ T606] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 125.736249][ T606] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 125.736643][ T606] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 125.736950][ T606] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 125.737252][ T606] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 125.737552][ T606] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 125.737874][ T606] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 125.738182][ T606] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 125.738484][ T606] ? __create_object (mm/kmemleak.c:771) 
[ 125.738800][ T606] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 125.739105][ T606] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 125.739407][ T606] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 125.739792][ T606] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 125.740103][ T606] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 125.740415][ T606] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 125.740732][ T606] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.741064][ T606] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 125.741378][ T606] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 125.741696][ T606] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 125.742015][ T606] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 125.742320][ T606] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 125.742644][ T606] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 125.742960][ T606] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.743270][ T606] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 125.743573][ T606] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 125.743887][ T606] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 125.744202][ T606] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 125.744504][ T606] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 125.744825][ T606] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 125.745135][ T606] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 125.745438][ T606] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.745759][ T606] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 125.746064][ T606] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 125.746369][ T606] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 125.746691][ T606] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 125.747000][ T606] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 125.747308][ T606] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 125.747708][ T606] ___sys_sendmsg (net/socket.c:2670) 
[ 125.748010][ T606] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 125.748310][ T606] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 125.748700][ T606] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 125.749005][ T606] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 125.749312][ T606] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.749642][ T606] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 125.749948][ T606] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 125.750249][ T606] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 125.750561][ T606] __sys_sendmsg (net/socket.c:2700) 
[ 125.750872][ T606] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 125.751248][ T606] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 125.751564][ T606] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 125.751888][ T606] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 125.752198][ T606] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  125.752576][  T606] RIP: 0033:0x7f5f7dbad1e7
[ 125.752904][ T606] Code: 0e 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:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   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)
[  125.753997][  T606] RSP: 002b:00007fff39a130e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  125.754453][  T606] RAX: ffffffffffffffda RBX: 00007fff39a13810 RCX: 00007f5f7dbad1e7
[  125.754915][  T606] RDX: 0000000000000000 RSI: 00007fff39a13150 RDI: 0000000000000005
[  125.755381][  T606] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  125.755846][  T606] R10: 000000003a28e910 R11: 0000000000000246 R12: 0000000000000003


Finger prints:
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:br_mtu_auto_adjust:br_del_if
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:br_mtu_auto_adjust:br_add_if