======================================
| [   19.872411][  T312] veth1: entered promiscuous mode
| [   19.875269][  T312] ------------[ cut here ]------------
| [ 19.875614][ T312] WARNING: CPU: 1 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) 
| [   19.876272][  T312] Modules linked in: bridge stp llc 8021q vrf veth
[   19.877705][  T312] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.878376][ 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) 
[ 19.878720][ 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
[   19.880299][  T312] RSP: 0018:ffffc900004e6ef0 EFLAGS: 00010246
[   19.880693][  T312] RAX: 0000000000000000 RBX: ffff88801040a000 RCX: 0000000000000001
[   19.881309][  T312] RDX: 0000000000000000 RSI: ffffffffb909b941 RDI: ffffffffb88555e0
[   19.881936][  T312] RBP: ffffc900004e6fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.882421][  T312] R10: ffffc900004e7010 R11: ffffffffb9ea8918 R12: 1ffff9200009cde2
[   19.882912][  T312] R13: 00000000000005dc R14: ffffc900004e7010 R15: ffff88801040af08
[   19.883405][  T312] FS:  00007fea642f3800(0000) GS:ffff88807b137000(0000) knlGS:0000000000000000
[   19.883991][  T312] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.884401][  T312] CR2: 00000000004e5aa8 CR3: 000000000a856006 CR4: 0000000000772ef0
[   19.884901][  T312] PKRU: 55555554
[   19.885147][  T312] Call Trace:
[   19.885392][  T312]  <TASK>
[ 19.885561][ T312] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.885921][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.886260][ T312] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.886584][ T312] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.886999][ T312] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.887325][ T312] netif_set_mtu (net/core/dev.c:9652) 
[ 19.887653][ T312] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.887998][ T312] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.888450][ T312] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.888701][ T312] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.889152][ T312] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.889521][ T312] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.889867][ T312] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.890198][ T312] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.890603][ T312] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.890938][ T312] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.891259][ T312] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.891591][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.891927][ 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) 
[ 19.892247][ T312] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.892643][ T312] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.892976][ T312] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.893304][ T312] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.893626][ T312] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.893954][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.894272][ T312] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.894593][ T312] ? __create_object (mm/kmemleak.c:771) 
[ 19.894925][ T312] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.895244][ T312] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.895562][ T312] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.895978][ T312] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.896305][ T312] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.896631][ T312] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.896958][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.897284][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.897605][ T312] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.897932][ T312] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.898262][ T312] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.898585][ T312] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.898913][ T312] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.899237][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.899560][ T312] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.899889][ T312] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.900241][ T312] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.900572][ T312] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.900910][ 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) 
[ 19.901239][ T312] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.901565][ T312] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.901898][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.902236][ T312] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.902565][ T312] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.902900][ T312] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.903248][ T312] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.903575][ T312] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.903905][ T312] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.904320][ T312] ___sys_sendmsg (net/socket.c:2670) 
[ 19.904641][ T312] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.904976][ 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) 
[ 19.905378][ T312] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.905713][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.906049][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.906376][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.906700][ 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) 
[ 19.907036][ T312] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.907367][ T312] __sys_sendmsg (net/socket.c:2700) 
[ 19.907684][ T312] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.908095][ T312] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.908436][ T312] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.908774][ T312] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.909100][ T312] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.909495][  T312] RIP: 0033:0x7fea644c01e7
[ 19.909841][ 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)
[   19.911001][  T312] RSP: 002b:00007ffefc19b6d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.911490][  T312] RAX: ffffffffffffffda RBX: 00007ffefc19be00 RCX: 00007fea644c01e7
[   19.911983][  T312] RDX: 0000000000000000 RSI: 00007ffefc19b740 RDI: 0000000000000005
[   19.912469][  T312] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.912966][  T312] R10: 0000000032967910 R11: 0000000000000246 R12: 0000000000000004
[   19.913460][  T312] R13: 00000000686e408d R14: 0000000000499600 R15: 0000000000000000
| [   39.895311][  T453] ------------[ cut here ]------------
| [ 39.895647][ T453] WARNING: CPU: 3 PID: 453 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) 
| [   39.896444][  T453] Modules linked in: bridge stp llc 8021q vrf veth
| [   39.897685][  T453] Tainted: [W]=WARN
[   39.897929][  T453] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 39.898313][ T453] 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) 
[ 39.898631][ T453] 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
[   39.899768][  T453] RSP: 0018:ffffc90000d06f70 EFLAGS: 00010246
[   39.900169][  T453] RAX: 0000000000000000 RBX: ffff88801040a000 RCX: 0000000000000001
[   39.900628][  T453] RDX: 0000000000000000 RSI: ffffffffb909b941 RDI: ffffffffb88555e0
[   39.901116][  T453] RBP: ffffc90000d07058 R08: 0000000000000000 R09: 0000000000000000
[   39.901576][  T453] R10: ffffc90000d07088 R11: ffffffffb5400130 R12: 1ffff920001a0df2
[   39.902059][  T453] R13: 00000000000005dc R14: ffffc90000d07088 R15: ffff88801040af08
[   39.902524][  T453] FS:  00007f1429b83800(0000) GS:ffff88807b237000(0000) knlGS:0000000000000000
[   39.903082][  T453] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.903480][  T453] CR2: 00000000004e5aa8 CR3: 000000000f221002 CR4: 0000000000772ef0
[   39.903969][  T453] PKRU: 55555554
[   39.904197][  T453] Call Trace:
[   39.904437][  T453]  <TASK>
[ 39.904593][ T453] ? __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) 
[ 39.905006][ T453] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 39.905358][ T453] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 39.905661][ T453] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 39.905988][ T453] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 39.906295][ T453] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 39.906598][ T453] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 39.906930][ T453] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 39.907264][ T453] ? ___sys_sendmsg (net/socket.c:2670) 
[ 39.907569][ T453] ? __sys_sendmsg (net/socket.c:2700) 
[ 39.907884][ T453] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 39.908211][ T453] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 39.908596][ T453] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 39.908922][ T453] netif_set_mtu (net/core/dev.c:9652) 
[ 39.909245][ T453] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 39.909578][ T453] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 39.909822][ T453] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 39.910258][ T453] br_del_if (net/bridge/br_if.c:743) bridge 
[ 39.910598][ T453] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 39.910915][ T453] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 39.911241][ T453] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 39.911553][ T453] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 39.911955][ T453] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 39.912295][ T453] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 39.912601][ T453] ? __kernel_text_address (kernel/extable.c:79) 
[ 39.912920][ T453] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 39.913261][ T453] ? __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) 
[ 39.913565][ T453] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 39.913964][ T453] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 39.914292][ T453] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 39.914595][ T453] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 39.914910][ T453] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 39.915231][ T453] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 39.915534][ T453] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 39.915850][ T453] ? __create_object (mm/kmemleak.c:771) 
[ 39.916161][ T453] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 39.916478][ T453] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 39.916805][ T453] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 39.917195][ T453] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 39.917517][ T453] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 39.917836][ T453] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 39.918141][ T453] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 39.918466][ T453] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 39.918800][ T453] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 39.919106][ T453] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 39.919428][ T453] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 39.919731][ T453] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 39.920049][ T453] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 39.920378][ T453] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 39.920720][ T453] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 39.921037][ T453] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 39.921379][ T453] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 39.921703][ T453] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 39.922016][ T453] ? 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) 
[ 39.922322][ T453] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 39.922759][ T453] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 39.923065][ T453] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 39.923392][ T453] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 39.923708][ T453] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 39.924035][ T453] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 39.924361][ T453] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 39.924681][ T453] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 39.924995][ T453] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 39.925383][ T453] ___sys_sendmsg (net/socket.c:2670) 
[ 39.925698][ T453] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 39.926011][ T453] ? __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) 
[ 39.926396][ T453] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 39.926718][ T453] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 39.927037][ T453] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 39.927344][ T453] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 39.927662][ T453] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 39.927979][ T453] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 39.928290][ T453] __sys_sendmsg (net/socket.c:2700) 
[ 39.928613][ T453] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 39.929000][ T453] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 39.929316][ T453] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 39.929636][ T453] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 39.929951][ T453] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   39.930327][  T453] RIP: 0033:0x7f1429d501e7
[ 39.930662][ T453] 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)
[   39.931773][  T453] RSP: 002b:00007ffff6560638 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   39.932237][  T453] RAX: ffffffffffffffda RBX: 00007ffff6560d60 RCX: 00007f1429d501e7
[   39.932708][  T453] RDX: 0000000000000000 RSI: 00007ffff65606a0 RDI: 0000000000000005
[   39.933191][  T453] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   39.933655][  T453] R10: 00007f1429c4dee8 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