======================================
| [   19.246063][  T305] veth1: entered promiscuous mode
| [   19.256646][  T305] ------------[ cut here ]------------
| [ 19.257003][ T305] WARNING: CPU: 3 PID: 305 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   19.259472][  T305] Modules linked in: bridge stp llc vrf veth
[   19.260571][  T305] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.260977][ T305] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 19.261314][ T305] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   19.262485][  T305] RSP: 0018:ffffc90000586ef0 EFLAGS: 00010246
[   19.262893][  T305] RAX: 0000000000000000 RBX: ffff88800b612000 RCX: 0000000000000001
[   19.263376][  T305] RDX: 0000000000000000 RSI: ffffffff87c9b941 RDI: ffffffff874555e0
[   19.263874][  T305] RBP: ffffc90000586fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.264353][  T305] R10: ffffc90000587010 R11: ffffffff88aa8918 R12: 1ffff920000b0de2
[   19.264845][  T305] R13: 00000000000005dc R14: ffffc90000587010 R15: ffff88800b612f08
[   19.265332][  T305] FS:  00007fbe6ce23800(0000) GS:ffff8880ac637000(0000) knlGS:0000000000000000
[   19.265908][  T305] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.266324][  T305] CR2: 00000000004e5aa8 CR3: 000000000ab96006 CR4: 0000000000772ef0
[   19.266819][  T305] PKRU: 55555554
[   19.267061][  T305] Call Trace:
[   19.267306][  T305]  <TASK>
[ 19.267487][ T305] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.267817][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.268144][ T305] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.268481][ T305] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.268898][ T305] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.269222][ T305] netif_set_mtu (net/core/dev.c:9652) 
[ 19.269560][ T305] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.269889][ T305] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.270332][ T305] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.270591][ T305] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.271034][ T305] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.271401][ T305] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.271738][ T305] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.272062][ T305] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.272481][ T305] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.272802][ T305] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.273128][ T305] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.273457][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.273799][ T305] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 19.274118][ T305] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.274523][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.274846][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.275164][ T305] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.275498][ T305] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.275819][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.276140][ T305] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.276455][ T305] ? __create_object (mm/kmemleak.c:771) 
[ 19.276787][ T305] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.277106][ T305] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.277423][ T305] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.277834][ T305] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.278168][ T305] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.278500][ T305] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.278828][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.279177][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.279507][ T305] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.279826][ T305] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.280145][ T305] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.280474][ T305] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.280803][ T305] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.281125][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.281447][ T305] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.281779][ T305] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.282107][ T305] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.282436][ T305] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.282775][ T305] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 19.283107][ T305] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.283427][ T305] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.283754][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.284093][ T305] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.284430][ T305] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.284781][ T305] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.285124][ T305] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.285483][ T305] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.285819][ T305] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.286243][ T305] ___sys_sendmsg (net/socket.c:2670) 
[ 19.286585][ T305] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.286922][ T305] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 19.287342][ T305] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.287690][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.288026][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.288364][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.288706][ T305] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.289052][ T305] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.289392][ T305] __sys_sendmsg (net/socket.c:2700) 
[ 19.289739][ T305] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.290155][ T305] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.290519][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.290858][ T305] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.291198][ T305] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.291623][  T305] RIP: 0033:0x7fbe6cff01e7
[ 19.291973][ T305] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   19.293186][  T305] RSP: 002b:00007ffdf81eee48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.293708][  T305] RAX: ffffffffffffffda RBX: 00007ffdf81ef570 RCX: 00007fbe6cff01e7
[   19.294213][  T305] RDX: 0000000000000000 RSI: 00007ffdf81eeeb0 RDI: 0000000000000005
[   19.294731][  T305] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.295245][  T305] R10: 000000001d707910 R11: 0000000000000246 R12: 0000000000000004
[   19.295759][  T305] R13: 00000000686e2079 R14: 0000000000499600 R15: 0000000000000000
| [   19.523877][  T307] ------------[ cut here ]------------
| [ 19.524306][ T307] WARNING: CPU: 2 PID: 307 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   19.524952][  T307] Modules linked in: bridge stp llc vrf veth
| [   19.526821][  T307] Tainted: [W]=WARN
[   19.527079][  T307] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.527488][ T307] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 19.527823][ T307] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   19.528983][  T307] RSP: 0018:ffffc90000576ef0 EFLAGS: 00010246
[   19.529388][  T307] RAX: 0000000000000000 RBX: ffff88800b612000 RCX: 0000000000000001
[   19.529871][  T307] RDX: 0000000000000000 RSI: ffffffff87c9b941 RDI: ffffffff874555e0
[   19.530359][  T307] RBP: ffffc90000576fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.530880][  T307] R10: ffffc90000577010 R11: ffffffff88aa8918 R12: 1ffff920000aede2
[   19.531375][  T307] R13: 00000000000005dc R14: ffffc90000577010 R15: ffff88800b612f08
[   19.531893][  T307] FS:  00007f2ecb0f9800(0000) GS:ffff8880ac5b7000(0000) knlGS:0000000000000000
[   19.532497][  T307] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.532921][  T307] CR2: 00000000004e5ab0 CR3: 0000000005a08003 CR4: 0000000000772ef0
[   19.533419][  T307] PKRU: 55555554
[   19.533697][  T307] Call Trace:
[   19.533955][  T307]  <TASK>
[ 19.534140][ T307] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.534491][ T307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.534839][ T307] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.535177][ T307] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.535610][ T307] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.535954][ T307] netif_set_mtu (net/core/dev.c:9652) 
[ 19.536291][ T307] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.536664][ T307] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.537135][ T307] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.537396][ T307] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.537876][ T307] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.538267][ T307] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.538624][ T307] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.538983][ T307] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.539402][ T307] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.539758][ T307] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.540091][ T307] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.540441][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.540849][ T307] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 19.541195][ T307] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.541627][ T307] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.541972][ T307] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.542310][ T307] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.542682][ T307] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.543028][ T307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.543368][ T307] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.543718][ T307] ? __create_object (mm/kmemleak.c:771) 
[ 19.544064][ T307] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.544402][ T307] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.544771][ T307] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.545193][ T307] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.545552][ T307] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.545903][ T307] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.546243][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.546606][ T307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.546949][ T307] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.547282][ T307] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.547639][ T307] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.547979][ T307] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.548317][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.548691][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.549054][ T307] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.549394][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.549757][ T307] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.550130][ T307] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.550486][ T307] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 19.550831][ T307] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.551180][ T307] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.551533][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.551883][ T307] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.552228][ T307] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.552603][ T307] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.552953][ T307] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.553294][ T307] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.553643][ T307] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.554070][ T307] ___sys_sendmsg (net/socket.c:2670) 
[ 19.554405][ T307] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.554752][ T307] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 19.555172][ T307] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.555524][ T307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.555869][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.556222][ T307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.556589][ T307] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.556933][ T307] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.557280][ T307] __sys_sendmsg (net/socket.c:2700) 
[ 19.557623][ T307] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.558040][ T307] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.558386][ T307] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.558747][ T307] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.559096][ T307] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.559526][  T307] RIP: 0033:0x7f2ecb2c61e7
[ 19.559875][ T307] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   19.561070][  T307] RSP: 002b:00007ffc55f73318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.561592][  T307] RAX: ffffffffffffffda RBX: 00007ffc55f73a40 RCX: 00007f2ecb2c61e7
[   19.562093][  T307] RDX: 0000000000000000 RSI: 00007ffc55f73380 RDI: 0000000000000005
[   19.562608][  T307] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.563105][  T307] R10: 0000000026d61910 R11: 0000000000000246 R12: 0000000000000004
[   19.563626][  T307] R13: 00000000686e207a R14: 0000000000499600 R15: 0000000000000000
| [   53.980086][  T668] ------------[ cut here ]------------
| [ 53.980433][ T668] WARNING: CPU: 0 PID: 668 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) 
| [   53.981077][  T668] Modules linked in: act_skbedit cls_flower sch_prio sch_ingress bridge stp llc vrf veth
| [   53.982315][  T668] Tainted: [W]=WARN
[   53.982569][  T668] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 53.982951][ T668] 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) 
[ 53.983280][ T668] 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
[   53.985610][  T668] RSP: 0018:ffffc90000fbef70 EFLAGS: 00010246
[   53.986015][  T668] RAX: 0000000000000000 RBX: ffff88800b612000 RCX: 0000000000000001
[   53.986642][  T668] RDX: 0000000000000000 RSI: ffffffff87c9b941 RDI: ffffffff874555e0
[   53.987103][  T668] RBP: ffffc90000fbf058 R08: 0000000000000000 R09: 0000000000000000
[   53.987776][  T668] R10: ffffc90000fbf088 R11: ffffffff84000130 R12: 1ffff920001f7df2
[   53.988243][  T668] R13: 00000000000005dc R14: ffffc90000fbf088 R15: ffff88800b612f08
[   53.988763][  T668] FS:  00007fc1537a3800(0000) GS:ffff8880ac4b7000(0000) knlGS:0000000000000000
[   53.989313][  T668] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   53.989742][  T668] CR2: 00000000004e5ab0 CR3: 000000000b98a005 CR4: 0000000000772ef0
[   53.990200][  T668] PKRU: 55555554
[   53.990441][  T668] Call Trace:
[   53.990712][  T668]  <TASK>
[ 53.990868][ T668] ? __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) 
[ 53.991259][ T668] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 53.991643][ T668] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 53.991954][ T668] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 53.992258][ T668] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 53.992584][ T668] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 53.992903][ T668] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 53.993204][ T668] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 53.993537][ T668] ? ___sys_sendmsg (net/socket.c:2670) 
[ 53.993843][ T668] ? __sys_sendmsg (net/socket.c:2700) 
[ 53.994146][ T668] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 53.994450][ T668] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 53.994856][ T668] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 53.995172][ T668] netif_set_mtu (net/core/dev.c:9652) 
[ 53.995495][ T668] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 53.995825][ T668] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 53.996056][ T668] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 53.996488][ T668] br_del_if (net/bridge/br_if.c:743) bridge 
[ 53.996859][ T668] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 53.997166][ T668] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 53.997490][ T668] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 53.997825][ T668] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 53.998212][ T668] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 53.998533][ T668] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 53.998865][ T668] ? __kernel_text_address (kernel/extable.c:79) 
[ 53.999189][ T668] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 53.999506][ T668] ? __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) 
[ 53.999827][ T668] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 54.000216][ T668] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 54.000536][ T668] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 54.000855][ T668] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 54.001176][ T668] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 54.001498][ T668] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.001821][ T668] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 54.002124][ T668] ? __create_object (mm/kmemleak.c:771) 
[ 54.002433][ T668] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 54.002791][ T668] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 54.003102][ T668] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 54.003516][ T668] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 54.003842][ T668] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 54.004156][ T668] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 54.004488][ T668] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.004816][ T668] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.005128][ T668] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 54.005430][ T668] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 54.005747][ T668] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 54.006066][ T668] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 54.006371][ T668] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 54.006700][ T668] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.007024][ T668] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 54.007327][ T668] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 54.007654][ T668] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 54.007984][ T668] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 54.008289][ T668] ? 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) 
[ 54.008605][ T668] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 54.008962][ T668] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 54.009267][ T668] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.009587][ T668] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 54.009920][ T668] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 54.010226][ T668] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 54.010558][ T668] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 54.010869][ T668] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 54.011191][ T668] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 54.011591][ T668] ___sys_sendmsg (net/socket.c:2670) 
[ 54.011928][ T668] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 54.012248][ T668] ? __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) 
[ 54.012641][ T668] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 54.012961][ T668] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.013272][ T668] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.013595][ T668] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.013957][ T668] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 54.014264][ T668] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 54.014594][ T668] __sys_sendmsg (net/socket.c:2700) 
[ 54.014908][ T668] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 54.015319][ T668] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 54.015649][ T668] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 54.015959][ T668] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 54.016310][ T668] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   54.016699][  T668] RIP: 0033:0x7fc1539701e7
[ 54.017042][ T668] 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)
[   54.018233][  T668] RSP: 002b:00007ffdeff82bc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   54.018710][  T668] RAX: ffffffffffffffda RBX: 00007ffdeff832f0 RCX: 00007fc1539701e7
[   54.019206][  T668] RDX: 0000000000000000 RSI: 00007ffdeff82c30 RDI: 0000000000000005
[   54.019677][  T668] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   54.020150][  T668] R10: 00007fc15386dee8 R11: 0000000000000246 R12: 0000000000000003
[   54.020622][  T668] R13: 00000000686e209c R14: 0000000000499600 R15: 0000000000000000
| [   54.263409][  T670] ------------[ cut here ]------------
| [ 54.263773][ T670] WARNING: CPU: 0 PID: 670 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) 
| [   54.264377][  T670] Modules linked in: act_skbedit cls_flower sch_prio sch_ingress bridge stp llc vrf veth
| [   54.265618][  T670] Tainted: [W]=WARN
[   54.265862][  T670] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 54.266256][ T670] 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) 
[ 54.267641][ T670] 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
[   54.268762][  T670] RSP: 0018:ffffc9000107ef70 EFLAGS: 00010246
[   54.269183][  T670] RAX: 0000000000000000 RBX: ffff88800b612000 RCX: 0000000000000001
[   54.269674][  T670] RDX: 0000000000000000 RSI: ffffffff87c9b941 RDI: ffffffff874555e0
[   54.270134][  T670] RBP: ffffc9000107f058 R08: 0000000000000000 R09: 0000000000000000
[   54.270598][  T670] R10: ffffc9000107f088 R11: ffffffff88179160 R12: 1ffff9200020fdf2
[   54.271071][  T670] R13: 00000000000005dc R14: ffffc9000107f088 R15: ffff88800b612f08
[   54.271542][  T670] FS:  00007f24888a2800(0000) GS:ffff8880ac4b7000(0000) knlGS:0000000000000000
[   54.272091][  T670] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   54.272495][  T670] CR2: 00000000004e5aa8 CR3: 000000000b98a001 CR4: 0000000000772ef0
[   54.273000][  T670] PKRU: 55555554
[   54.273234][  T670] Call Trace:
[   54.273492][  T670]  <TASK>
[ 54.273654][ T670] ? __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) 
[ 54.274054][ T670] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 54.274407][ T670] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 54.274724][ T670] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 54.275044][ T670] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 54.275354][ T670] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 54.275669][ T670] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 54.275985][ T670] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 54.276289][ T670] ? ___sys_sendmsg (net/socket.c:2670) 
[ 54.276607][ T670] ? __sys_sendmsg (net/socket.c:2700) 
[ 54.276929][ T670] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 54.277232][ T670] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 54.277635][ T670] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.277966][ T670] netif_set_mtu (net/core/dev.c:9652) 
[ 54.278271][ T670] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 54.278608][ T670] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 54.278917][ T670] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 54.279388][ T670] br_del_if (net/bridge/br_if.c:743) bridge 
[ 54.279753][ T670] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 54.280073][ T670] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 54.280387][ T670] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 54.280713][ T670] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 54.281105][ T670] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 54.281415][ T670] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 54.281744][ T670] ? __kernel_text_address (kernel/extable.c:79) 
[ 54.282066][ T670] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.282413][ T670] ? __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) 
[ 54.282743][ T670] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 54.283138][ T670] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 54.283449][ T670] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 54.283771][ T670] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 54.284078][ T670] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 54.284384][ T670] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.284704][ T670] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 54.285013][ T670] ? __create_object (mm/kmemleak.c:771) 
[ 54.285328][ T670] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 54.285662][ T670] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 54.285972][ T670] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 54.286381][ T670] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 54.286708][ T670] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 54.287025][ T670] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 54.287337][ T670] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.287665][ T670] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.287984][ T670] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 54.288292][ T670] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 54.288617][ T670] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 54.288932][ T670] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 54.289238][ T670] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 54.289569][ T670] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.289880][ T670] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 54.290218][ T670] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 54.290544][ T670] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 54.290867][ T670] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 54.291176][ T670] ? 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) 
[ 54.291513][ T670] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 54.291838][ T670] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 54.292157][ T670] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.292502][ T670] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 54.292823][ T670] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 54.293143][ T670] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 54.293491][ T670] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 54.293814][ T670] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 54.294153][ T670] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 54.294584][ T670] ___sys_sendmsg (net/socket.c:2670) 
[ 54.294903][ T670] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 54.295231][ T670] ? __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) 
[ 54.295667][ T670] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 54.295993][ T670] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.296408][ T670] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.296753][ T670] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.297077][ T670] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 54.297494][ T670] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 54.297827][ T670] __sys_sendmsg (net/socket.c:2700) 
[ 54.298174][ T670] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 54.298636][ T670] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 54.298984][ T670] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 54.299309][ T670] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 54.299644][ T670] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   54.300042][  T670] RIP: 0033:0x7f2488a6f1e7
[ 54.300379][ T670] 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)
[   54.301546][  T670] RSP: 002b:00007ffd2537b4e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   54.302030][  T670] RAX: ffffffffffffffda RBX: 00007ffd2537bc10 RCX: 00007f2488a6f1e7
[   54.302566][  T670] RDX: 0000000000000000 RSI: 00007ffd2537b550 RDI: 0000000000000005
[   54.303049][  T670] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   54.303555][  T670] R10: 00007f248896cee8 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