======================================
| [  437.315296][ T3410] veth1: entered promiscuous mode
| [  437.317760][ T3410] ------------[ cut here ]------------
| [ 437.318095][ T3410] WARNING: CPU: 3 PID: 3410 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) 
| [  437.318776][ T3410] Modules linked in: bridge stp llc act_gact cls_flower sch_ingress 8021q ip6_gre ip6_tunnel tunnel6 gre vrf veth
[  437.321102][ T3410] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 437.321513][ T3410] 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) 
[ 437.321837][ T3410] 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
[  437.322978][ T3410] RSP: 0018:ffffc90004ddeef0 EFLAGS: 00010246
[  437.323396][ T3410] RAX: 0000000000000000 RBX: ffff88800ab72000 RCX: 0000000000000001
[  437.323866][ T3410] RDX: 0000000000000000 RSI: ffffffffb789b941 RDI: ffffffffb70555e0
[  437.324341][ T3410] RBP: ffffc90004ddefe0 R08: 0000000000000000 R09: 0000000000000000
[  437.324825][ T3410] R10: ffffc90004ddf010 R11: ffffffffb86a8918 R12: 1ffff920009bbde2
[  437.325296][ T3410] R13: 00000000000005dc R14: ffffc90004ddf010 R15: ffff88800ab72f08
[  437.325798][ T3410] FS:  00007fa138701800(0000) GS:ffff88807ca37000(0000) knlGS:0000000000000000
[  437.326353][ T3410] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  437.326753][ T3410] CR2: 00000000004e5aa8 CR3: 0000000008e42002 CR4: 0000000000772ef0
[  437.327258][ T3410] PKRU: 55555554
[  437.327515][ T3410] Call Trace:
[  437.327761][ T3410]  <TASK>
[ 437.327928][ T3410] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 437.328247][ T3410] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 437.328598][ T3410] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 437.328913][ T3410] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 437.329315][ T3410] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 437.329634][ T3410] netif_set_mtu (net/core/dev.c:9652) 
[ 437.329947][ T3410] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 437.330281][ T3410] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 437.330723][ T3410] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 437.330968][ T3410] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 437.331405][ T3410] br_add_if (net/bridge/br_if.c:697) bridge 
[ 437.331772][ T3410] do_set_master (net/core/rtnetlink.c:2948) 
[ 437.332090][ T3410] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 437.332421][ T3410] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 437.332822][ T3410] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 437.333146][ T3410] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 437.333469][ T3410] ? __kernel_text_address (kernel/extable.c:79) 
[ 437.333798][ T3410] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 437.334113][ T3410] ? __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) 
[ 437.334436][ T3410] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 437.334816][ T3410] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 437.335125][ T3410] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 437.335447][ T3410] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 437.335767][ T3410] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 437.336077][ T3410] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 437.336402][ T3410] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 437.336706][ T3410] ? __create_object (mm/kmemleak.c:771) 
[ 437.337026][ T3410] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 437.337342][ T3410] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 437.337669][ T3410] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 437.338062][ T3410] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 437.338393][ T3410] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 437.338730][ T3410] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 437.339220][ T3410] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 437.339766][ T3410] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 437.340283][ T3410] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 437.340796][ T3410] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 437.341142][ T3410] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 437.341494][ T3410] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 437.341814][ T3410] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 437.342125][ T3410] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 437.342467][ T3410] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 437.342792][ T3410] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 437.343110][ T3410] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 437.343459][ T3410] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 437.343781][ T3410] ? 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) 
[ 437.344084][ T3410] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 437.344423][ T3410] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 437.344744][ T3410] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 437.345062][ T3410] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 437.345402][ T3410] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 437.345731][ T3410] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 437.346069][ T3410] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 437.346429][ T3410] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 437.346738][ T3410] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 437.347129][ T3410] ___sys_sendmsg (net/socket.c:2670) 
[ 437.347493][ T3410] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 437.347805][ T3410] ? __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) 
[ 437.348205][ T3410] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 437.348536][ T3410] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 437.348856][ T3410] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 437.349176][ T3410] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 437.349495][ T3410] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 437.349819][ T3410] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 437.350142][ T3410] __sys_sendmsg (net/socket.c:2700) 
[ 437.350474][ T3410] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 437.350878][ T3410] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 437.351206][ T3410] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 437.351540][ T3410] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 437.351877][ T3410] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  437.352277][ T3410] RIP: 0033:0x7fa1388ce1e7
[ 437.352620][ T3410] 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)
[  437.353745][ T3410] RSP: 002b:00007fffaf3ec428 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  437.354215][ T3410] RAX: ffffffffffffffda RBX: 00007fffaf3ecb50 RCX: 00007fa1388ce1e7
[  437.354702][ T3410] RDX: 0000000000000000 RSI: 00007fffaf3ec490 RDI: 0000000000000005
[  437.355182][ T3410] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  437.355659][ T3410] R10: 000000001bbf7910 R11: 0000000000000246 R12: 0000000000000004
[  437.356137][ T3410] R13: 00000000686e3a4d R14: 0000000000499600 R15: 0000000000000000
| [  437.518501][ T3412] ------------[ cut here ]------------
| [ 437.518849][ T3412] WARNING: CPU: 2 PID: 3412 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) 
| [  437.519512][ T3412] Modules linked in: bridge stp llc act_gact cls_flower sch_ingress 8021q ip6_gre ip6_tunnel tunnel6 gre vrf veth
| [  437.520979][ T3412] Tainted: [W]=WARN
[  437.521235][ T3412] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 437.521649][ T3412] 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) 
[ 437.521984][ T3412] 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
[  437.523110][ T3412] RSP: 0018:ffffc90000656ef0 EFLAGS: 00010246
[  437.523520][ T3412] RAX: 0000000000000000 RBX: ffff88800ab72000 RCX: 0000000000000001
[  437.523998][ T3412] RDX: 0000000000000000 RSI: ffffffffb789b941 RDI: ffffffffb70555e0
[  437.524488][ T3412] RBP: ffffc90000656fe0 R08: 0000000000000000 R09: 0000000000000000
[  437.524963][ T3412] R10: ffffc90000657010 R11: ffffffffb86a8918 R12: 1ffff920000cade2
[  437.525443][ T3412] R13: 00000000000005dc R14: ffffc90000657010 R15: ffff88800ab72f08
[  437.525925][ T3412] FS:  00007f03212ca800(0000) GS:ffff88807c9b7000(0000) knlGS:0000000000000000
[  437.526485][ T3412] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  437.526891][ T3412] CR2: 00000000004e5ab0 CR3: 0000000017a39005 CR4: 0000000000772ef0
[  437.527374][ T3412] PKRU: 55555554
[  437.527633][ T3412] Call Trace:
[  437.527873][ T3412]  <TASK>
[ 437.528045][ T3412] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 437.528366][ T3412] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 437.528704][ T3412] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 437.529031][ T3412] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 437.529436][ T3412] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 437.529755][ T3412] netif_set_mtu (net/core/dev.c:9652) 
[ 437.530077][ T3412] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 437.530416][ T3412] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 437.530858][ T3412] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 437.531103][ T3412] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 437.531558][ T3412] br_add_if (net/bridge/br_if.c:697) bridge 
[ 437.531933][ T3412] do_set_master (net/core/rtnetlink.c:2948) 
[ 437.532272][ T3412] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 437.532614][ T3412] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 437.533015][ T3412] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 437.533343][ T3412] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 437.533681][ T3412] ? __kernel_text_address (kernel/extable.c:79) 
[ 437.534007][ T3412] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 437.534338][ T3412] ? __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) 
[ 437.534668][ T3412] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 437.535063][ T3412] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 437.535396][ T3412] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 437.535740][ T3412] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 437.536089][ T3412] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 437.536428][ T3412] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 437.536763][ T3412] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 437.537087][ T3412] ? __create_object (mm/kmemleak.c:771) 
[ 437.537428][ T3412] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 437.537749][ T3412] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 437.538068][ T3412] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 437.538480][ T3412] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 437.538819][ T3412] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 437.539149][ T3412] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 437.539496][ T3412] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 437.539826][ T3412] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 437.540154][ T3412] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 437.540490][ T3412] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 437.540821][ T3412] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 437.541143][ T3412] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 437.541492][ T3412] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 437.541817][ T3412] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 437.542145][ T3412] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 437.542477][ T3412] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 437.542799][ T3412] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 437.543128][ T3412] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 437.543468][ T3412] ? 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) 
[ 437.543801][ T3412] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 437.544122][ T3412] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 437.544470][ T3412] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 437.544802][ T3412] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 437.545130][ T3412] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 437.545475][ T3412] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 437.545831][ T3412] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 437.546159][ T3412] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 437.546491][ T3412] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 437.546908][ T3412] ___sys_sendmsg (net/socket.c:2670) 
[ 437.547233][ T3412] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 437.547577][ T3412] ? __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) 
[ 437.547984][ T3412] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 437.548310][ T3412] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 437.548657][ T3412] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 437.548981][ T3412] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 437.549304][ T3412] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 437.549636][ T3412] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 437.549963][ T3412] __sys_sendmsg (net/socket.c:2700) 
[ 437.550285][ T3412] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 437.550694][ T3412] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 437.551035][ T3412] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 437.551369][ T3412] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 437.551700][ T3412] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  437.552090][ T3412] RIP: 0033:0x7f03214971e7
[ 437.552434][ T3412] 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)
[  437.553559][ T3412] RSP: 002b:00007ffdf6c44828 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  437.554031][ T3412] RAX: ffffffffffffffda RBX: 00007ffdf6c44f50 RCX: 00007f03214971e7
[  437.554516][ T3412] RDX: 0000000000000000 RSI: 00007ffdf6c44890 RDI: 0000000000000005
[  437.554983][ T3412] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  437.555475][ T3412] R10: 0000000027be6910 R11: 0000000000000246 R12: 0000000000000004
[  437.555960][ T3412] R13: 00000000686e3a4e R14: 0000000000499600 R15: 0000000000000000
| [  544.029554][ T3710] ------------[ cut here ]------------
| [ 544.029876][ T3710] WARNING: CPU: 3 PID: 3710 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) 
| [  544.030501][ T3710] Modules linked in: bridge stp llc act_gact cls_flower sch_ingress 8021q ip6_gre ip6_tunnel tunnel6 gre vrf veth
| [  544.031848][ T3710] Tainted: [W]=WARN
[  544.032088][ T3710] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 544.032492][ T3710] 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) 
[ 544.032823][ T3710] 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
[  544.033917][ T3710] RSP: 0018:ffffc900013eef70 EFLAGS: 00010246
[  544.034302][ T3710] RAX: 0000000000000000 RBX: ffff88800ab72000 RCX: 0000000000000001
[  544.034771][ T3710] RDX: 0000000000000000 RSI: ffffffffb789b941 RDI: ffffffffb70555e0
[  544.035233][ T3710] RBP: ffffc900013ef058 R08: 0000000000000000 R09: 0000000000000000
[  544.035702][ T3710] R10: ffffc900013ef088 R11: ffffffffb3c00130 R12: 1ffff9200027ddf2
[  544.036175][ T3710] R13: 00000000000005dc R14: ffffc900013ef088 R15: ffff88800ab72f08
[  544.037821][ T3710] FS:  00007f2816983800(0000) GS:ffff88807ca37000(0000) knlGS:0000000000000000
[  544.038366][ T3710] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  544.038758][ T3710] CR2: 00000000004e5aa8 CR3: 000000000bbd4002 CR4: 0000000000772ef0
[  544.039216][ T3710] PKRU: 55555554
[  544.039455][ T3710] Call Trace:
[  544.039682][ T3710]  <TASK>
[ 544.039834][ T3710] ? __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) 
[ 544.040223][ T3710] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 544.040581][ T3710] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 544.040885][ T3710] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 544.041191][ T3710] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 544.041510][ T3710] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 544.041813][ T3710] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 544.042117][ T3710] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 544.042434][ T3710] ? ___sys_sendmsg (net/socket.c:2670) 
[ 544.042745][ T3710] ? __sys_sendmsg (net/socket.c:2700) 
[ 544.043046][ T3710] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 544.043353][ T3710] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 544.043741][ T3710] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 544.044058][ T3710] netif_set_mtu (net/core/dev.c:9652) 
[ 544.044362][ T3710] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 544.044698][ T3710] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 544.044937][ T3710] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 544.045355][ T3710] br_del_if (net/bridge/br_if.c:743) bridge 
[ 544.045711][ T3710] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 544.046029][ T3710] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 544.046339][ T3710] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 544.046659][ T3710] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 544.047045][ T3710] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 544.047358][ T3710] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 544.047670][ T3710] ? __kernel_text_address (kernel/extable.c:79) 
[ 544.047982][ T3710] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 544.048290][ T3710] ? __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) 
[ 544.048602][ T3710] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 544.048979][ T3710] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 544.049285][ T3710] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 544.049600][ T3710] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 544.049914][ T3710] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 544.050222][ T3710] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 544.050534][ T3710] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 544.050838][ T3710] ? __create_object (mm/kmemleak.c:771) 
[ 544.051149][ T3710] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 544.051468][ T3710] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 544.051776][ T3710] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 544.052163][ T3710] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 544.052519][ T3710] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 544.052829][ T3710] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 544.053132][ T3710] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 544.053449][ T3710] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 544.053754][ T3710] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 544.054057][ T3710] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 544.054362][ T3710] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 544.054687][ T3710] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 544.054993][ T3710] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 544.055304][ T3710] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 544.055624][ T3710] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 544.055934][ T3710] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 544.056238][ T3710] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 544.056562][ T3710] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 544.056872][ T3710] ? 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) 
[ 544.057178][ T3710] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 544.057493][ T3710] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 544.057798][ T3710] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 544.058104][ T3710] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 544.058416][ T3710] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 544.058724][ T3710] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 544.059041][ T3710] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 544.059351][ T3710] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 544.059670][ T3710] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 544.060066][ T3710] ___sys_sendmsg (net/socket.c:2670) 
[ 544.060394][ T3710] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 544.060699][ T3710] ? __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) 
[ 544.061077][ T3710] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 544.061401][ T3710] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 544.061710][ T3710] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 544.062019][ T3710] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 544.062326][ T3710] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 544.062638][ T3710] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 544.062953][ T3710] __sys_sendmsg (net/socket.c:2700) 
[ 544.063257][ T3710] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 544.063643][ T3710] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 544.063971][ T3710] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 544.064280][ T3710] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 544.064596][ T3710] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  544.064979][ T3710] RIP: 0033:0x7f2816b501e7
[ 544.065307][ T3710] 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)
[  544.066414][ T3710] RSP: 002b:00007ffc9f429688 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  544.066874][ T3710] RAX: ffffffffffffffda RBX: 00007ffc9f429db0 RCX: 00007f2816b501e7
[  544.067333][ T3710] RDX: 0000000000000000 RSI: 00007ffc9f4296f0 RDI: 0000000000000005
[  544.067795][ T3710] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[  544.068257][ T3710] R10: 00007f2816a4dee8 R11: 0000000000000246 R12: 0000000000000002
[  544.068723][ T3710] R13: 00000000686e3ab8 R14: 0000000000499600 R15: 0000000000000000
| [  544.193735][ T3711] ------------[ cut here ]------------
| [ 544.194057][ T3711] WARNING: CPU: 2 PID: 3711 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) 
| [  544.194685][ T3711] Modules linked in: bridge stp llc act_gact cls_flower sch_ingress 8021q ip6_gre ip6_tunnel tunnel6 gre vrf veth
| [  544.196063][ T3711] Tainted: [W]=WARN
[  544.196312][ T3711] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 544.196718][ T3711] 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) 
[ 544.197048][ T3711] 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
[  544.198156][ T3711] RSP: 0018:ffffc900013feef0 EFLAGS: 00010246
[  544.198562][ T3711] RAX: 0000000000000000 RBX: ffff88800ab72000 RCX: 0000000000000001
[  544.199032][ T3711] RDX: 0000000000000000 RSI: ffffffffb789b941 RDI: ffffffffb70555e0
[  544.199506][ T3711] RBP: ffffc900013fefe0 R08: 0000000000000000 R09: 0000000000000000
[  544.199978][ T3711] R10: ffffc900013ff010 R11: ffffffffb86a8918 R12: 1ffff9200027fde2
[  544.200462][ T3711] R13: 00000000000005dc R14: ffffc900013ff010 R15: ffff88800ab72f08
[  544.200931][ T3711] FS:  00007f4895196800(0000) GS:ffff88807c9b7000(0000) knlGS:0000000000000000
[  544.201487][ T3711] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  544.201924][ T3711] CR2: 00000000004e5aa8 CR3: 000000000bbf6003 CR4: 0000000000772ef0
[  544.202413][ T3711] PKRU: 55555554
[  544.202657][ T3711] Call Trace:
[  544.202897][ T3711]  <TASK>
[ 544.203069][ T3711] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 544.203397][ T3711] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 544.203721][ T3711] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 544.204039][ T3711] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 544.204448][ T3711] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 544.204771][ T3711] netif_set_mtu (net/core/dev.c:9652) 
[ 544.205087][ T3711] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 544.205425][ T3711] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 544.205879][ T3711] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 544.206127][ T3711] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 544.206578][ T3711] br_add_if (net/bridge/br_if.c:697) bridge 
[ 544.206947][ T3711] do_set_master (net/core/rtnetlink.c:2948) 
[ 544.207271][ T3711] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 544.207605][ T3711] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 544.208003][ T3711] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 544.208322][ T3711] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 544.208647][ T3711] ? __kernel_text_address (kernel/extable.c:79) 
[ 544.208979][ T3711] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 544.209298][ T3711] ? __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) 
[ 544.209642][ T3711] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 544.210034][ T3711] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 544.210364][ T3711] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 544.210730][ T3711] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 544.211068][ T3711] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 544.211405][ T3711] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 544.211726][ T3711] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 544.212039][ T3711] ? __create_object (mm/kmemleak.c:771) 
[ 544.212363][ T3711] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 544.212692][ T3711] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 544.213009][ T3711] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 544.213427][ T3711] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 544.213756][ T3711] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 544.214086][ T3711] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 544.214418][ T3711] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 544.214739][ T3711] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 544.215060][ T3711] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 544.215373][ T3711] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 544.215709][ T3711] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 544.216085][ T3711] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 544.216422][ T3711] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 544.216753][ T3711] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 544.217080][ T3711] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 544.217408][ T3711] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 544.217728][ T3711] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 544.218054][ T3711] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 544.218376][ T3711] ? 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) 
[ 544.218724][ T3711] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 544.219056][ T3711] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 544.219387][ T3711] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 544.219712][ T3711] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 544.220032][ T3711] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 544.220351][ T3711] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 544.220687][ T3711] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 544.221014][ T3711] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 544.221339][ T3711] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 544.221756][ T3711] ___sys_sendmsg (net/socket.c:2670) 
[ 544.222074][ T3711] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 544.222401][ T3711] ? __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) 
[ 544.222793][ T3711] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 544.223114][ T3711] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 544.223450][ T3711] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 544.223789][ T3711] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 544.224109][ T3711] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 544.224435][ T3711] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 544.224763][ T3711] __sys_sendmsg (net/socket.c:2700) 
[ 544.225082][ T3711] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 544.225480][ T3711] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 544.225811][ T3711] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 544.226148][ T3711] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 544.226479][ T3711] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  544.226875][ T3711] RIP: 0033:0x7f48953631e7
[ 544.227207][ T3711] 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)
[  544.228320][ T3711] RSP: 002b:00007ffd1209b488 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  544.228811][ T3711] RAX: ffffffffffffffda RBX: 00007ffd1209bbb0 RCX: 00007f48953631e7
[  544.229319][ T3711] RDX: 0000000000000000 RSI: 00007ffd1209b4f0 RDI: 0000000000000005
[  544.229799][ T3711] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  544.230268][ T3711] R10: 0000000038c52910 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