======================================
| [   20.054305][  T318] veth1: entered promiscuous mode
| [   20.055539][  T318] ------------[ cut here ]------------
| [ 20.055854][ T318] WARNING: CPU: 3 PID: 318 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) 
| [   20.056498][  T318] Modules linked in: bridge stp llc 8021q vrf veth
[   20.057548][  T318] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.057940][ T318] 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) 
[ 20.058257][ T318] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 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 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   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 1a 63 7b 00       	call   0x7b633b
  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
[   20.059359][  T318] RSP: 0018:ffffc900006d6ef0 EFLAGS: 00010246
[   20.059750][  T318] RAX: 0000000000000000 RBX: ffff88800fef2000 RCX: 0000000000000001
[   20.060220][  T318] RDX: 0000000000000000 RSI: ffffffffab49b941 RDI: ffffffffaac555e0
[   20.060679][  T318] RBP: ffffc900006d6fe0 R08: 0000000000000000 R09: 0000000000000000
[   20.061154][  T318] R10: ffffc900006d7010 R11: ffffffffac2a8918 R12: 1ffff920000dade2
[   20.061614][  T318] R13: 00000000000005dc R14: ffffc900006d7010 R15: ffff88800fef2f08
[   20.062084][  T318] FS:  00007f14df690800(0000) GS:ffff888088e37000(0000) knlGS:0000000000000000
[   20.062618][  T318] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.063028][  T318] CR2: 00000000004e5aa8 CR3: 000000000c1df006 CR4: 0000000000772ef0
[   20.063685][  T318] PKRU: 55555554
[   20.063929][  T318] Call Trace:
[   20.064162][  T318]  <TASK>
[ 20.064324][ T318] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.064632][ T318] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.064959][ T318] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 20.065276][ T318] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 20.065664][ T318] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 20.065983][ T318] netif_set_mtu (net/core/dev.c:9652) 
[ 20.066294][ T318] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.066611][ T318] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 20.067045][ T318] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.067279][ T318] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 20.067698][ T318] br_add_if (net/bridge/br_if.c:697) bridge 
[ 20.068064][ T318] do_set_master (net/core/rtnetlink.c:2948) 
[ 20.068373][ T318] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 20.068683][ T318] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 20.069076][ T318] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 20.069377][ T318] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 20.069681][ T318] ? __kernel_text_address (kernel/extable.c:79) 
[ 20.069996][ T318] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.070305][ T318] ? __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) 
[ 20.070608][ T318] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 20.070995][ T318] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.071302][ T318] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.071606][ T318] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 20.071919][ T318] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 20.072223][ T318] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.072529][ T318] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.072829][ T318] ? __create_object (mm/kmemleak.c:771) 
[ 20.073144][ T318] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 20.073451][ T318] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 20.073753][ T318] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 20.074146][ T318] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 20.074455][ T318] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.074766][ T318] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.075080][ T318] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.075433][ T318] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.075735][ T318] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.076049][ T318] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.076359][ T318] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.076661][ T318] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.076973][ T318] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.077285][ T318] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.077593][ T318] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.077896][ T318] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.078214][ T318] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.078530][ T318] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.078831][ T318] ? 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) 
[ 20.079148][ T318] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 20.079465][ T318] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.079768][ T318] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.080087][ T318] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.080396][ T318] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.080700][ T318] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.081017][ T318] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.081327][ T318] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.081629][ T318] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.082025][ T318] ___sys_sendmsg (net/socket.c:2670) 
[ 20.082344][ T318] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 20.082649][ T318] ? __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) 
[ 20.083032][ T318] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.083340][ T318] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.083647][ T318] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.083964][ T318] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.084284][ T318] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 20.084586][ T318] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.084897][ T318] __sys_sendmsg (net/socket.c:2700) 
[ 20.085234][ T318] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 20.085617][ T318] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.085942][ T318] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.086287][ T318] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.086598][ T318] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.086983][  T318] RIP: 0033:0x7f14df85d1e7
[ 20.087301][ T318] 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)
[   20.088399][  T318] RSP: 002b:00007fff7d6a28d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.088872][  T318] RAX: ffffffffffffffda RBX: 00007fff7d6a3000 RCX: 00007f14df85d1e7
[   20.089346][  T318] RDX: 0000000000000000 RSI: 00007fff7d6a2940 RDI: 0000000000000005
[   20.089804][  T318] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   20.090275][  T318] R10: 0000000013648910 R11: 0000000000000246 R12: 0000000000000004
[   20.090736][  T318] R13: 00000000686e171c R14: 0000000000499600 R15: 0000000000000000
| [   35.063408][  T419] ------------[ cut here ]------------
| [ 35.063728][ T419] WARNING: CPU: 0 PID: 419 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) 
| [   35.064346][  T419] Modules linked in: bridge stp llc 8021q vrf veth
| [   35.065384][  T419] Tainted: [W]=WARN
[   35.065619][  T419] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 35.066447][ T419] 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) 
[ 35.066769][ T419] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 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 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   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 1a 63 7b 00       	call   0x7b633b
  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
[   35.067861][  T419] RSP: 0018:ffffc90000bb6f70 EFLAGS: 00010246
[   35.068256][  T419] RAX: 0000000000000000 RBX: ffff88800fef2000 RCX: 0000000000000001
[   35.068713][  T419] RDX: 0000000000000000 RSI: ffffffffab49b941 RDI: ffffffffaac555e0
[   35.069187][  T419] RBP: ffffc90000bb7058 R08: 0000000000000000 R09: 0000000000000000
[   35.069642][  T419] R10: ffffc90000bb7088 R11: ffffffffa7800130 R12: 1ffff92000176df2
[   35.070114][  T419] R13: 00000000000005dc R14: ffffc90000bb7088 R15: ffff88800fef2f08
[   35.070577][  T419] FS:  00007f4157585800(0000) GS:ffff888088cb7000(0000) knlGS:0000000000000000
[   35.071114][  T419] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.071501][  T419] CR2: 00000000004e5aa8 CR3: 000000000beaf005 CR4: 0000000000772ef0
[   35.071970][  T419] PKRU: 55555554
[   35.072199][  T419] Call Trace:
[   35.072432][  T419]  <TASK>
[ 35.072591][ T419] ? __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) 
[ 35.072981][ T419] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 35.073348][ T419] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 35.073651][ T419] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 35.073963][ T419] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 35.074267][ T419] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 35.074575][ T419] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 35.074876][ T419] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 35.075200][ T419] ? ___sys_sendmsg (net/socket.c:2670) 
[ 35.075505][ T419] ? __sys_sendmsg (net/socket.c:2700) 
[ 35.075805][ T419] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 35.076120][ T419] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 35.076499][ T419] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.076812][ T419] netif_set_mtu (net/core/dev.c:9652) 
[ 35.077134][ T419] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 35.077454][ T419] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 35.077688][ T419] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 35.078117][ T419] br_del_if (net/bridge/br_if.c:743) bridge 
[ 35.078454][ T419] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 35.078757][ T419] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 35.079079][ T419] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 35.079387][ T419] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 35.079780][ T419] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 35.080111][ T419] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 35.080414][ T419] ? __kernel_text_address (kernel/extable.c:79) 
[ 35.080720][ T419] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.081038][ T419] ? __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) 
[ 35.081345][ T419] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 35.081728][ T419] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.082045][ T419] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.082350][ T419] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 35.082653][ T419] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 35.082966][ T419] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.083273][ T419] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 35.083572][ T419] ? __create_object (mm/kmemleak.c:771) 
[ 35.083877][ T419] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 35.084202][ T419] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 35.084506][ T419] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 35.084882][ T419] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 35.085221][ T419] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 35.085531][ T419] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.085833][ T419] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.086158][ T419] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.086465][ T419] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 35.086772][ T419] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.087085][ T419] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.087392][ T419] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 35.087700][ T419] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.088015][ T419] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.088330][ T419] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 35.088633][ T419] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.088950][ T419] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 35.089268][ T419] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 35.089571][ T419] ? 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) 
[ 35.089876][ T419] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 35.090191][ T419] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 35.090498][ T419] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.090806][ T419] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 35.091127][ T419] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 35.091435][ T419] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 35.091744][ T419] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 35.092058][ T419] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 35.092365][ T419] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 35.092756][ T419] ___sys_sendmsg (net/socket.c:2670) 
[ 35.093065][ T419] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 35.093375][ T419] ? __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) 
[ 35.093755][ T419] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 35.094069][ T419] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.094383][ T419] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.094693][ T419] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.095005][ T419] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 35.095322][ T419] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.095633][ T419] __sys_sendmsg (net/socket.c:2700) 
[ 35.095950][ T419] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 35.096328][ T419] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 35.096645][ T419] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.096960][ T419] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 35.097264][ T419] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   35.097639][  T419] RIP: 0033:0x7f41577521e7
[ 35.097960][ T419] 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)
[   35.099054][  T419] RSP: 002b:00007ffd4eebb718 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   35.099513][  T419] RAX: ffffffffffffffda RBX: 00007ffd4eebbe40 RCX: 00007f41577521e7
[   35.099976][  T419] RDX: 0000000000000000 RSI: 00007ffd4eebb780 RDI: 0000000000000005
[   35.100434][  T419] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   35.100888][  T419] R10: 00007f415764fee8 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