======================================
| [   19.722211][  T310] veth1: entered promiscuous mode
| [   19.724530][  T310] ------------[ cut here ]------------
| [ 19.724927][ T310] WARNING: CPU: 2 PID: 310 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) 
| [   19.725587][  T310] Modules linked in: bridge stp llc 8021q vrf veth
[   19.727139][  T310] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.727556][ T310] 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) 
[ 19.727902][ T310] 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
[   19.729075][  T310] RSP: 0018:ffffc90000586ef0 EFLAGS: 00010246
[   19.729510][  T310] RAX: 0000000000000000 RBX: ffff8880129a2000 RCX: 0000000000000001
[   19.730036][  T310] RDX: 0000000000000000 RSI: ffffffff9b49b941 RDI: ffffffff9ac555e0
[   19.730551][  T310] RBP: ffffc90000586fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.731249][  T310] R10: ffffc90000587010 R11: ffffffff9c2a8918 R12: 1ffff920000b0de2
[   19.731781][  T310] R13: 00000000000005dc R14: ffffc90000587010 R15: ffff8880129a2f08
[   19.732288][  T310] FS:  00007fd7874fc800(0000) GS:ffff888098db7000(0000) knlGS:0000000000000000
[   19.732894][  T310] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.733328][  T310] CR2: 00000000004e5aa8 CR3: 0000000012d74003 CR4: 0000000000772ef0
[   19.733857][  T310] PKRU: 55555554
[   19.734119][  T310] Call Trace:
[   19.734377][  T310]  <TASK>
[ 19.734569][ T310] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.734928][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.735279][ T310] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.735653][ T310] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.736073][ T310] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.736421][ T310] netif_set_mtu (net/core/dev.c:9652) 
[ 19.736783][ T310] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.737140][ T310] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.737630][ T310] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.737899][ T310] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.738361][ T310] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.738799][ T310] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.739156][ T310] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.739508][ T310] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.739953][ T310] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.740296][ T310] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.740654][ T310] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.741014][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.741363][ T310] ? __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) 
[ 19.741727][ T310] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.742146][ T310] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.742491][ T310] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.742856][ T310] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.743205][ T310] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.743548][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.743907][ T310] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.744256][ T310] ? __create_object (mm/kmemleak.c:771) 
[ 19.744601][ T310] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.744959][ T310] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.745296][ T310] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.745759][ T310] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.746117][ T310] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.746470][ T310] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.746826][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.747177][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.747517][ T310] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.747867][ T310] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.748215][ T310] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.748561][ T310] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.748927][ T310] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.749271][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.749631][ T310] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.750000][ T310] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.750343][ T310] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.750718][ T310] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.751057][ T310] ? 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) 
[ 19.751408][ T310] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.751776][ T310] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.752121][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.752480][ T310] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.752839][ T310] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.753185][ T310] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.753537][ T310] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.753895][ T310] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.754238][ T310] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.754691][ T310] ___sys_sendmsg (net/socket.c:2670) 
[ 19.755036][ T310] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.755383][ T310] ? __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) 
[ 19.755864][ T310] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.756217][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.756579][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.756955][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.757301][ T310] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.757672][ T310] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.758023][ T310] __sys_sendmsg (net/socket.c:2700) 
[ 19.758370][ T310] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.758809][ T310] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.759166][ T310] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.759608][ T310] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.759965][ T310] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.760369][  T310] RIP: 0033:0x7fd7876c91e7
[ 19.760730][ T310] 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)
[   19.762174][  T310] RSP: 002b:00007fff7b09f968 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.763146][  T310] RAX: ffffffffffffffda RBX: 00007fff7b0a0090 RCX: 00007fd7876c91e7
[   19.763644][  T310] RDX: 0000000000000000 RSI: 00007fff7b09f9d0 RDI: 0000000000000005
[   19.764130][  T310] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.764631][  T310] R10: 0000000028d20910 R11: 0000000000000246 R12: 0000000000000004
[   19.765138][  T310] R13: 00000000686e3bfe R14: 0000000000499600 R15: 0000000000000000
| [   19.898479][  T312] ------------[ cut here ]------------
| [ 19.898835][ T312] WARNING: CPU: 0 PID: 312 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) 
| [   19.899515][  T312] Modules linked in: bridge stp llc 8021q vrf veth
| [   19.900674][  T312] Tainted: [W]=WARN
[   19.900940][  T312] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.901368][ T312] 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) 
[ 19.901731][ T312] 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
[   19.902951][  T312] RSP: 0018:ffffc90000526ef0 EFLAGS: 00010246
[   19.903383][  T312] RAX: 0000000000000000 RBX: ffff8880129a2000 RCX: 0000000000000001
[   19.903922][  T312] RDX: 0000000000000000 RSI: ffffffff9b49b941 RDI: ffffffff9ac555e0
[   19.904434][  T312] RBP: ffffc90000526fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.904950][  T312] R10: ffffc90000527010 R11: ffffffff9c2a8918 R12: 1ffff920000a4de2
[   19.905478][  T312] R13: 00000000000005dc R14: ffffc90000527010 R15: ffff8880129a2f08
[   19.905993][  T312] FS:  00007fb8a1865800(0000) GS:ffff888098cb7000(0000) knlGS:0000000000000000
[   19.906588][  T312] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.907025][  T312] CR2: 00000000004e5ab0 CR3: 0000000015cc2006 CR4: 0000000000772ef0
[   19.907549][  T312] PKRU: 55555554
[   19.907817][  T312] Call Trace:
[   19.908076][  T312]  <TASK>
[ 19.908255][ T312] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.908604][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.908969][ T312] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.909312][ T312] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.909757][ T312] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.910110][ T312] netif_set_mtu (net/core/dev.c:9652) 
[ 19.910458][ T312] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.910822][ T312] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.911304][ T312] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.911562][ T312] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.912057][ T312] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.912428][ T312] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.912780][ T312] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.913105][ T312] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.913518][ T312] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.913848][ T312] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.914167][ T312] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.914496][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.914835][ T312] ? __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) 
[ 19.915162][ T312] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.915624][ T312] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.915969][ T312] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.916307][ T312] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.916654][ T312] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.916992][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.917330][ T312] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.917678][ T312] ? __create_object (mm/kmemleak.c:771) 
[ 19.918020][ T312] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.918359][ T312] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.918708][ T312] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.919128][ T312] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.919472][ T312] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.919826][ T312] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.920170][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.920517][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.920864][ T312] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.921203][ T312] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.921544][ T312] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.921893][ T312] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.922232][ T312] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.922577][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.922929][ T312] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.923278][ T312] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.923627][ T312] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.923987][ T312] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.924322][ T312] ? 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) 
[ 19.924671][ T312] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.925010][ T312] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.925351][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.925713][ T312] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.926051][ T312] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.926387][ T312] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.926739][ T312] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.927080][ T312] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.927415][ T312] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.927856][ T312] ___sys_sendmsg (net/socket.c:2670) 
[ 19.928199][ T312] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.928535][ T312] ? __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) 
[ 19.928966][ T312] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.929308][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.929656][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.929996][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.930331][ T312] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.930680][ T312] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.931025][ T312] __sys_sendmsg (net/socket.c:2700) 
[ 19.931360][ T312] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.931787][ T312] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.932134][ T312] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.932472][ T312] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.932817][ T312] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.933238][  T312] RIP: 0033:0x7fb8a1a321e7
[ 19.933582][ T312] 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)
[   19.934787][  T312] RSP: 002b:00007fff06698b38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.935295][  T312] RAX: ffffffffffffffda RBX: 00007fff06699260 RCX: 00007fb8a1a321e7
[   19.935827][  T312] RDX: 0000000000000000 RSI: 00007fff06698ba0 RDI: 0000000000000005
[   19.936333][  T312] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.936852][  T312] R10: 0000000023c45910 R11: 0000000000000246 R12: 0000000000000004


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