======================================
| [   20.148922][  T316] veth1: entered promiscuous mode
| [   20.150152][  T316] ------------[ cut here ]------------
| [ 20.150980][ T316] WARNING: CPU: 3 PID: 316 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) 
| [   20.151614][  T316] Modules linked in: bridge stp llc 8021q vrf veth
[   20.152648][  T316] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.153032][ T316] 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) 
[ 20.153347][ T316] 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
[   20.154652][  T316] RSP: 0018:ffffc900005a6ef0 EFLAGS: 00010246
[   20.155041][  T316] RAX: 0000000000000000 RBX: ffff88800eaca000 RCX: 0000000000000001
[   20.155513][  T316] RDX: 0000000000000000 RSI: ffffffffaba9b941 RDI: ffffffffab2555e0
[   20.155979][  T316] RBP: ffffc900005a6fe0 R08: 0000000000000000 R09: 0000000000000000
[   20.156448][  T316] R10: ffffc900005a7010 R11: ffffffffac8a8918 R12: 1ffff920000b4de2
[   20.156909][  T316] R13: 00000000000005dc R14: ffffc900005a7010 R15: ffff88800eacaf08
[   20.157387][  T316] FS:  00007f7a20ac6800(0000) GS:ffff888081a37000(0000) knlGS:0000000000000000
[   20.157944][  T316] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.158333][  T316] CR2: 00000000004e5aa8 CR3: 000000000eb6d001 CR4: 0000000000772ef0
[   20.158809][  T316] PKRU: 55555554
[   20.159041][  T316] Call Trace:
[   20.159271][  T316]  <TASK>
[ 20.159442][ T316] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.159755][ T316] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.160074][ T316] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 20.160381][ T316] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 20.160782][ T316] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 20.161091][ T316] netif_set_mtu (net/core/dev.c:9652) 
[ 20.161400][ T316] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.161730][ T316] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 20.162160][ T316] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.162396][ T316] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 20.162828][ T316] br_add_if (net/bridge/br_if.c:697) bridge 
[ 20.163180][ T316] do_set_master (net/core/rtnetlink.c:2948) 
[ 20.163505][ T316] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 20.163818][ T316] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 20.164204][ T316] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 20.164521][ T316] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 20.164827][ T316] ? __kernel_text_address (kernel/extable.c:79) 
[ 20.165137][ T316] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.165455][ T316] ? __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) 
[ 20.165766][ T316] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 20.166141][ T316] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.166460][ T316] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.166766][ T316] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 20.167075][ T316] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 20.167391][ T316] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.167709][ T316] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.168013][ T316] ? __create_object (mm/kmemleak.c:771) 
[ 20.168324][ T316] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 20.168642][ T316] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 20.168948][ T316] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 20.169331][ T316] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 20.169662][ T316] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.169973][ T316] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.170277][ T316] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.170599][ T316] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.170906][ T316] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.171208][ T316] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.171529][ T316] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.171837][ T316] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.172141][ T316] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.172458][ T316] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.172769][ T316] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.173081][ T316] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.173388][ T316] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.173721][ T316] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.174028][ T316] ? 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) 
[ 20.174334][ T316] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 20.174657][ T316] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.174962][ T316] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.175271][ T316] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.175590][ T316] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.175898][ T316] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.176209][ T316] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.176537][ T316] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.176843][ T316] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.177233][ T316] ___sys_sendmsg (net/socket.c:2670) 
[ 20.177561][ T316] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 20.177869][ T316] ? __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) 
[ 20.178250][ T316] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.178572][ T316] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.178883][ T316] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.179195][ T316] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.179510][ T316] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 20.179819][ T316] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.180132][ T316] __sys_sendmsg (net/socket.c:2700) 
[ 20.180445][ T316] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 20.180826][ T316] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.181145][ T316] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.181463][ T316] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.181772][ T316] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.182152][  T316] RIP: 0033:0x7f7a20c931e7
[ 20.182484][ T316] 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)
[   20.183589][  T316] RSP: 002b:00007ffc5f5392e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.184060][  T316] RAX: ffffffffffffffda RBX: 00007ffc5f539a10 RCX: 00007f7a20c931e7
[   20.184535][  T316] RDX: 0000000000000000 RSI: 00007ffc5f539350 RDI: 0000000000000005
[   20.184994][  T316] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   20.185476][  T316] R10: 000000001cf4b910 R11: 0000000000000246 R12: 0000000000000004
[   20.185940][  T316] R13: 00000000686e4c2e R14: 0000000000499600 R15: 0000000000000000
| [   35.269858][  T416] ------------[ cut here ]------------
| [ 35.270202][ T416] WARNING: CPU: 1 PID: 416 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) 
| [   35.270859][  T416] Modules linked in: bridge stp llc 8021q vrf veth
| [   35.272172][  T416] Tainted: [W]=WARN
[   35.272419][  T416] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 35.272831][ T416] 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) 
[ 35.273164][ T416] 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
[   35.274322][  T416] RSP: 0018:ffffc90000b86f70 EFLAGS: 00010246
[   35.275171][  T416] RAX: 0000000000000000 RBX: ffff88800eaca000 RCX: 0000000000000001
[   35.275673][  T416] RDX: 0000000000000000 RSI: ffffffffaba9b941 RDI: ffffffffab2555e0
[   35.276157][  T416] RBP: ffffc90000b87058 R08: 0000000000000000 R09: 0000000000000000
[   35.276641][  T416] R10: ffffc90000b87088 R11: ffffffffa7e00130 R12: 1ffff92000170df2
[   35.277118][  T416] R13: 00000000000005dc R14: ffffc90000b87088 R15: ffff88800eacaf08
[   35.277634][  T416] FS:  00007fce82bfe800(0000) GS:ffff888081937000(0000) knlGS:0000000000000000
[   35.278189][  T416] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.278595][  T416] CR2: 00000000004e5aa8 CR3: 000000000c07f006 CR4: 0000000000772ef0
[   35.279068][  T416] PKRU: 55555554
[   35.279303][  T416] Call Trace:
[   35.279545][  T416]  <TASK>
[ 35.279705][ T416] ? __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) 
[ 35.280108][ T416] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 35.280472][ T416] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 35.280792][ T416] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 35.281106][ T416] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 35.281422][ T416] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 35.281759][ T416] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 35.282074][ T416] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 35.282398][ T416] ? ___sys_sendmsg (net/socket.c:2670) 
[ 35.282723][ T416] ? __sys_sendmsg (net/socket.c:2700) 
[ 35.283037][ T416] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 35.283354][ T416] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 35.283759][ T416] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.284085][ T416] netif_set_mtu (net/core/dev.c:9652) 
[ 35.284403][ T416] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 35.284750][ T416] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 35.284997][ T416] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 35.285455][ T416] br_del_if (net/bridge/br_if.c:743) bridge 
[ 35.285813][ T416] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 35.286129][ T416] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 35.286461][ T416] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 35.286786][ T416] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 35.287186][ T416] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 35.287529][ T416] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 35.287848][ T416] ? __kernel_text_address (kernel/extable.c:79) 
[ 35.288171][ T416] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.288499][ T416] ? __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) 
[ 35.288820][ T416] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 35.289213][ T416] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.289551][ T416] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.289882][ T416] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 35.290199][ T416] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 35.290525][ T416] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.290843][ T416] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 35.291158][ T416] ? __create_object (mm/kmemleak.c:771) 
[ 35.291484][ T416] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 35.291802][ T416] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 35.292122][ T416] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 35.292531][ T416] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 35.292860][ T416] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 35.293183][ T416] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.293524][ T416] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.293859][ T416] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.294179][ T416] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 35.294504][ T416] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.294830][ T416] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.295146][ T416] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 35.295475][ T416] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.295801][ T416] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.296123][ T416] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 35.296452][ T416] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.296773][ T416] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 35.297102][ T416] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 35.297455][ T416] ? 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) 
[ 35.297778][ T416] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 35.298099][ T416] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 35.298418][ T416] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.298753][ T416] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 35.299078][ T416] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 35.299399][ T416] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 35.299741][ T416] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 35.300066][ T416] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 35.300383][ T416] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 35.300800][ T416] ___sys_sendmsg (net/socket.c:2670) 
[ 35.301118][ T416] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 35.301489][ T416] ? __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) 
[ 35.301898][ T416] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 35.302227][ T416] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.302560][ T416] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.302887][ T416] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.303208][ T416] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 35.303535][ T416] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.303861][ T416] __sys_sendmsg (net/socket.c:2700) 
[ 35.304177][ T416] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 35.304585][ T416] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 35.304917][ T416] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.305236][ T416] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 35.305573][ T416] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   35.305971][  T416] RIP: 0033:0x7fce82dcb1e7
[ 35.306300][ T416] 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)
[   35.307464][  T416] RSP: 002b:00007ffdb96c41f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   35.307946][  T416] RAX: ffffffffffffffda RBX: 00007ffdb96c4920 RCX: 00007fce82dcb1e7
[   35.308422][  T416] RDX: 0000000000000000 RSI: 00007ffdb96c4260 RDI: 0000000000000005
[   35.308918][  T416] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   35.309397][  T416] R10: 00007fce82cc8ee8 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