======================================
| [   18.576944][  T299] veth1: entered promiscuous mode
| [   18.579285][  T299] ------------[ cut here ]------------
| [ 18.579661][ T299] WARNING: CPU: 2 PID: 299 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) 
| [   18.580354][  T299] Modules linked in: bridge stp llc vrf veth
[   18.581505][  T299] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.582221][ T299] 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) 
[ 18.582580][ T299] 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
[   18.583784][  T299] RSP: 0018:ffffc900004f6ef0 EFLAGS: 00010246
[   18.584248][  T299] RAX: 0000000000000000 RBX: ffff88800dc5a000 RCX: 0000000000000001
[   18.584753][  T299] RDX: 0000000000000000 RSI: ffffffffba69b941 RDI: ffffffffb9e555e0
[   18.585278][  T299] RBP: ffffc900004f6fe0 R08: 0000000000000000 R09: 0000000000000000
[   18.585784][  T299] R10: ffffc900004f7010 R11: ffffffffbb4a8918 R12: 1ffff9200009ede2
[   18.586327][  T299] R13: 00000000000005dc R14: ffffc900004f7010 R15: ffff88800dc5af08
[   18.587043][  T299] FS:  00007f4bc6271800(0000) GS:ffff888079bb7000(0000) knlGS:0000000000000000
[   18.587644][  T299] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.588075][  T299] CR2: 00000000004e5aa8 CR3: 000000000dc0e005 CR4: 0000000000772ef0
[   18.588574][  T299] PKRU: 55555554
[   18.588821][  T299] Call Trace:
[   18.589085][  T299]  <TASK>
[ 18.589271][ T299] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.589618][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.589963][ T299] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.590291][ T299] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.590696][ T299] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.591032][ T299] netif_set_mtu (net/core/dev.c:9652) 
[ 18.591366][ T299] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.591699][ T299] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 18.592170][ T299] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.592427][ T299] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 18.592870][ T299] br_add_if (net/bridge/br_if.c:697) bridge 
[ 18.593262][ T299] do_set_master (net/core/rtnetlink.c:2948) 
[ 18.593610][ T299] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 18.593953][ T299] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 18.594363][ T299] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.594691][ T299] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.595032][ T299] ? __kernel_text_address (kernel/extable.c:79) 
[ 18.595367][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.595697][ T299] ? __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) 
[ 18.596038][ T299] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 18.596442][ T299] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.596775][ T299] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.597108][ T299] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 18.597428][ T299] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 18.597752][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.598085][ T299] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.598407][ T299] ? __create_object (mm/kmemleak.c:771) 
[ 18.598731][ T299] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 18.599067][ T299] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 18.599397][ T299] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.599795][ T299] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 18.600134][ T299] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.600466][ T299] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.600797][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.601148][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.601478][ T299] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.601814][ T299] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.602149][ T299] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.602477][ T299] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.602801][ T299] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.603403][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.603760][ T299] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.604315][ T299] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.604634][ T299] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.605208][ T299] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.605527][ T299] ? 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) 
[ 18.605862][ T299] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 18.606727][ T299] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.607059][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.607387][ T299] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.607722][ T299] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.608056][ T299] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.608622][ T299] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.608958][ T299] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.609280][ T299] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.610151][ T299] ___sys_sendmsg (net/socket.c:2670) 
[ 18.610473][ T299] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 18.611030][ T299] ? __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) 
[ 18.611429][ T299] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.611750][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.612309][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.612638][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.613195][ T299] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 18.613761][ T299] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.614125][ T299] __sys_sendmsg (net/socket.c:2700) 
[ 18.614445][ T299] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 18.614845][ T299] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.615409][ T299] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.615740][ T299] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.616088][ T299] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.616716][  T299] RIP: 0033:0x7f4bc643e1e7
[ 18.617315][ T299] 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)
[   18.618668][  T299] RSP: 002b:00007ffe828c0188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.619159][  T299] RAX: ffffffffffffffda RBX: 00007ffe828c08b0 RCX: 00007f4bc643e1e7
[   18.619640][  T299] RDX: 0000000000000000 RSI: 00007ffe828c01f0 RDI: 0000000000000005
[   18.620357][  T299] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   18.620832][  T299] R10: 000000001dc27910 R11: 0000000000000246 R12: 0000000000000004
[   18.621323][  T299] R13: 00000000686e4ac4 R14: 0000000000499600 R15: 0000000000000000
| [   18.896248][  T302] ------------[ cut here ]------------
| [ 18.896600][ T302] WARNING: CPU: 2 PID: 302 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) 
| [   18.897259][  T302] Modules linked in: bridge stp llc vrf veth
| [   18.898368][  T302] Tainted: [W]=WARN
[   18.898630][  T302] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.899051][ T302] 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) 
[ 18.899391][ T302] 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
[   18.900561][  T302] RSP: 0018:ffffc900004f6ef0 EFLAGS: 00010246
[   18.900997][  T302] RAX: 0000000000000000 RBX: ffff88800dc5a000 RCX: 0000000000000001
[   18.901489][  T302] RDX: 0000000000000000 RSI: ffffffffba69b941 RDI: ffffffffb9e555e0
[   18.901989][  T302] RBP: ffffc900004f6fe0 R08: 0000000000000000 R09: 0000000000000000
[   18.902484][  T302] R10: ffffc900004f7010 R11: ffffffffbb4a8918 R12: 1ffff9200009ede2
[   18.902989][  T302] R13: 00000000000005dc R14: ffffc900004f7010 R15: ffff88800dc5af08
[   18.903498][  T302] FS:  00007f5466a96800(0000) GS:ffff888079bb7000(0000) knlGS:0000000000000000
[   18.904092][  T302] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.904515][  T302] CR2: 00000000004e5ab0 CR3: 000000000c403003 CR4: 0000000000772ef0
[   18.905046][  T302] PKRU: 55555554
[   18.905300][  T302] Call Trace:
[   18.905556][  T302]  <TASK>
[ 18.905738][ T302] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.906083][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.906429][ T302] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.906766][ T302] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.907201][ T302] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.907541][ T302] netif_set_mtu (net/core/dev.c:9652) 
[ 18.907876][ T302] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.908231][ T302] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 18.908695][ T302] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.908963][ T302] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 18.909415][ T302] br_add_if (net/bridge/br_if.c:697) bridge 
[ 18.909802][ T302] do_set_master (net/core/rtnetlink.c:2948) 
[ 18.910162][ T302] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 18.910505][ T302] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 18.910940][ T302] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.911272][ T302] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.911605][ T302] ? __kernel_text_address (kernel/extable.c:79) 
[ 18.911951][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.912294][ T302] ? __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) 
[ 18.912627][ T302] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 18.913051][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.913385][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.913736][ T302] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 18.914084][ T302] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 18.914421][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.914754][ T302] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.915096][ T302] ? __create_object (mm/kmemleak.c:771) 
[ 18.915428][ T302] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 18.915765][ T302] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 18.916110][ T302] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.916521][ T302] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 18.916860][ T302] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.917212][ T302] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.917547][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.917887][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.918232][ T302] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.918564][ T302] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.918907][ T302] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.919240][ T302] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.919573][ T302] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.919927][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.920266][ T302] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.920599][ T302] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.920943][ T302] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.921291][ T302] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.921622][ T302] ? 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) 
[ 18.921966][ T302] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 18.922311][ T302] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.922647][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.923000][ T302] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.923336][ T302] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.923691][ T302] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.924043][ T302] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.924384][ T302] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.924716][ T302] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.925160][ T302] ___sys_sendmsg (net/socket.c:2670) 
[ 18.925491][ T302] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 18.925825][ T302] ? __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) 
[ 18.926249][ T302] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.926591][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.926938][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.927281][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.927618][ T302] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 18.927963][ T302] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.928305][ T302] __sys_sendmsg (net/socket.c:2700) 
[ 18.928635][ T302] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 18.929060][ T302] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.929409][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.929744][ T302] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.930094][ T302] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.930509][  T302] RIP: 0033:0x7f5466c631e7
[ 18.930856][ T302] 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)
[   18.932019][  T302] RSP: 002b:00007ffd255ab2b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.932515][  T302] RAX: ffffffffffffffda RBX: 00007ffd255ab9e0 RCX: 00007f5466c631e7
[   18.933022][  T302] RDX: 0000000000000000 RSI: 00007ffd255ab320 RDI: 0000000000000005
[   18.933524][  T302] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   18.934031][  T302] R10: 000000000e631910 R11: 0000000000000246 R12: 0000000000000004
[   18.934534][  T302] R13: 00000000686e4ac4 R14: 0000000000499600 R15: 0000000000000000
| [   46.358562][  T623] ------------[ cut here ]------------
| [ 46.358946][ T623] WARNING: CPU: 0 PID: 623 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) 
| [   46.359586][  T623] Modules linked in: act_gact cls_flower sch_ingress bridge stp llc vrf veth
| [   46.361681][  T623] Tainted: [W]=WARN
[   46.361943][  T623] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 46.362350][ T623] 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) 
[ 46.362683][ T623] 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
[   46.363832][  T623] RSP: 0018:ffffc90000faef70 EFLAGS: 00010246
[   46.364254][  T623] RAX: 0000000000000000 RBX: ffff88800dc5a000 RCX: 0000000000000001
[   46.364715][  T623] RDX: 0000000000000000 RSI: ffffffffba69b941 RDI: ffffffffb9e555e0
[   46.365209][  T623] RBP: ffffc90000faf058 R08: 0000000000000000 R09: 0000000000000000
[   46.365692][  T623] R10: ffffc90000faf088 R11: ffffffffb6a00130 R12: 1ffff920001f5df2
[   46.366186][  T623] R13: 00000000000005dc R14: ffffc90000faf088 R15: ffff88800dc5af08
[   46.366671][  T623] FS:  00007fd9045fb800(0000) GS:ffff888079ab7000(0000) knlGS:0000000000000000
[   46.367242][  T623] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.367651][  T623] CR2: 00000000004e5ab0 CR3: 000000000a6b7005 CR4: 0000000000772ef0
[   46.368150][  T623] PKRU: 55555554
[   46.368398][  T623] Call Trace:
[   46.368642][  T623]  <TASK>
[ 46.368806][ T623] ? __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) 
[ 46.369222][ T623] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 46.369585][ T623] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 46.369907][ T623] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 46.370230][ T623] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 46.370554][ T623] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 46.370883][ T623] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 46.371223][ T623] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 46.371551][ T623] ? ___sys_sendmsg (net/socket.c:2670) 
[ 46.371875][ T623] ? __sys_sendmsg (net/socket.c:2700) 
[ 46.372201][ T623] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 46.372508][ T623] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 46.372910][ T623] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 46.373247][ T623] netif_set_mtu (net/core/dev.c:9652) 
[ 46.373589][ T623] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 46.373955][ T623] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 46.374199][ T623] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 46.374644][ T623] br_del_if (net/bridge/br_if.c:743) bridge 
[ 46.375014][ T623] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 46.375327][ T623] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 46.375651][ T623] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 46.375995][ T623] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 46.376407][ T623] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 46.376731][ T623] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 46.377066][ T623] ? __kernel_text_address (kernel/extable.c:79) 
[ 46.377388][ T623] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 46.377712][ T623] ? __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) 
[ 46.378045][ T623] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 46.378445][ T623] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 46.378770][ T623] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 46.379100][ T623] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 46.379425][ T623] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 46.379750][ T623] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 46.380100][ T623] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 46.380424][ T623] ? __create_object (mm/kmemleak.c:771) 
[ 46.380752][ T623] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 46.381096][ T623] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 46.381421][ T623] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 46.381823][ T623] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 46.382165][ T623] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 46.382495][ T623] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 46.382813][ T623] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 46.383137][ T623] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 46.383450][ T623] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 46.383770][ T623] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 46.384092][ T623] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 46.384400][ T623] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 46.384709][ T623] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 46.385038][ T623] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 46.385371][ T623] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 46.385694][ T623] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 46.386039][ T623] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 46.386373][ T623] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 46.386695][ T623] ? 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) 
[ 46.387030][ T623] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 46.387359][ T623] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 46.387682][ T623] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 46.388019][ T623] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 46.388352][ T623] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 46.388677][ T623] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 46.389016][ T623] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 46.389346][ T623] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 46.389670][ T623] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 46.390095][ T623] ___sys_sendmsg (net/socket.c:2670) 
[ 46.390418][ T623] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 46.390746][ T623] ? __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) 
[ 46.391158][ T623] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 46.391484][ T623] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 46.391811][ T623] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 46.392151][ T623] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 46.392476][ T623] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 46.392799][ T623] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 46.393149][ T623] __sys_sendmsg (net/socket.c:2700) 
[ 46.393469][ T623] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 46.393900][ T623] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 46.394239][ T623] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 46.394564][ T623] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 46.394907][ T623] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   46.395311][  T623] RIP: 0033:0x7fd9047c81e7
[ 46.395652][ T623] 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)
[   46.396809][  T623] RSP: 002b:00007ffdc3537fc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   46.397307][  T623] RAX: ffffffffffffffda RBX: 00007ffdc35386f0 RCX: 00007fd9047c81e7
[   46.397801][  T623] RDX: 0000000000000000 RSI: 00007ffdc3538030 RDI: 0000000000000005
[   46.398295][  T623] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   46.398779][  T623] R10: 00007fd9046c5ee8 R11: 0000000000000246 R12: 0000000000000003
[   46.399277][  T623] R13: 00000000686e4ae0 R14: 0000000000499600 R15: 0000000000000000
| [   46.642369][  T625] ------------[ cut here ]------------
| [ 46.642696][ T625] WARNING: CPU: 0 PID: 625 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) 
| [   46.643651][  T625] Modules linked in: act_gact cls_flower sch_ingress bridge stp llc vrf veth
| [   46.644873][  T625] Tainted: [W]=WARN
[   46.645119][  T625] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 46.645504][ T625] 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) 
[ 46.645821][ T625] 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
[   46.646950][  T625] RSP: 0018:ffffc90000fcef70 EFLAGS: 00010246
[   46.647347][  T625] RAX: 0000000000000000 RBX: ffff88800dc5a000 RCX: 0000000000000001
[   46.647806][  T625] RDX: 0000000000000000 RSI: ffffffffba69b941 RDI: ffffffffb9e555e0
[   46.648284][  T625] RBP: ffffc90000fcf058 R08: 0000000000000000 R09: 0000000000000000
[   46.648746][  T625] R10: ffffc90000fcf088 R11: ffffffffbab79160 R12: 1ffff920001f9df2
[   46.649219][  T625] R13: 00000000000005dc R14: ffffc90000fcf088 R15: ffff88800dc5af08
[   46.649680][  T625] FS:  00007fb2da371800(0000) GS:ffff888079ab7000(0000) knlGS:0000000000000000
[   46.650229][  T625] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.650618][  T625] CR2: 00000000004e5aa8 CR3: 000000000c7c3001 CR4: 0000000000772ef0
[   46.651102][  T625] PKRU: 55555554
[   46.651336][  T625] Call Trace:
[   46.651567][  T625]  <TASK>
[ 46.651723][ T625] ? __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) 
[ 46.652118][ T625] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 46.652478][ T625] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 46.652786][ T625] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 46.653106][ T625] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 46.653413][ T625] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 46.653731][ T625] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 46.654056][ T625] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 46.654362][ T625] ? ___sys_sendmsg (net/socket.c:2670) 
[ 46.654667][ T625] ? __sys_sendmsg (net/socket.c:2700) 
[ 46.655001][ T625] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 46.655313][ T625] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 46.655690][ T625] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 46.656016][ T625] netif_set_mtu (net/core/dev.c:9652) 
[ 46.656324][ T625] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 46.656646][ T625] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 46.656880][ T625] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 46.657323][ T625] br_del_if (net/bridge/br_if.c:743) bridge 
[ 46.657664][ T625] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 46.657981][ T625] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 46.658293][ T625] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 46.658605][ T625] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 46.659015][ T625] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 46.659324][ T625] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 46.659636][ T625] ? __kernel_text_address (kernel/extable.c:79) 
[ 46.659958][ T625] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 46.660269][ T625] ? __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) 
[ 46.660577][ T625] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 46.660966][ T625] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 46.661283][ T625] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 46.661588][ T625] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 46.661915][ T625] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 46.662235][ T625] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 46.662543][ T625] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 46.662847][ T625] ? __create_object (mm/kmemleak.c:771) 
[ 46.663202][ T625] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 46.663535][ T625] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 46.663883][ T625] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 46.664284][ T625] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 46.664607][ T625] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 46.664933][ T625] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 46.665245][ T625] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 46.665571][ T625] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 46.665917][ T625] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 46.666244][ T625] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 46.666570][ T625] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 46.666919][ T625] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 46.667254][ T625] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 46.667582][ T625] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 46.667923][ T625] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 46.668249][ T625] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 46.668578][ T625] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 46.668931][ T625] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 46.669256][ T625] ? 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) 
[ 46.669590][ T625] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 46.669927][ T625] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 46.670251][ T625] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 46.670578][ T625] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 46.670930][ T625] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 46.671261][ T625] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 46.671593][ T625] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 46.671944][ T625] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 46.672290][ T625] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 46.672704][ T625] ___sys_sendmsg (net/socket.c:2670) 
[ 46.673036][ T625] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 46.673360][ T625] ? __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) 
[ 46.673781][ T625] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 46.674122][ T625] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 46.674461][ T625] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 46.674789][ T625] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 46.675144][ T625] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 46.675468][ T625] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 46.675798][ T625] __sys_sendmsg (net/socket.c:2700) 
[ 46.676127][ T625] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 46.676527][ T625] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 46.676868][ T625] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 46.677202][ T625] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 46.677525][ T625] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   46.677932][  T625] RIP: 0033:0x7fb2da53e1e7
[ 46.678268][ T625] 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)
[   46.679441][  T625] RSP: 002b:00007ffe21cf3528 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   46.679942][  T625] RAX: ffffffffffffffda RBX: 00007ffe21cf3c50 RCX: 00007fb2da53e1e7
[   46.680424][  T625] RDX: 0000000000000000 RSI: 00007ffe21cf3590 RDI: 0000000000000005
[   46.680916][  T625] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   46.681407][  T625] R10: 00007fb2da43bee8 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