======================================
| [   18.335599][  T305] veth1: entered promiscuous mode
| [   18.338012][  T305] ------------[ cut here ]------------
| [ 18.338877][ T305] WARNING: CPU: 1 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) 
| [   18.339539][  T305] Modules linked in: bridge stp llc sch_ingress vrf veth
[   18.340564][  T305] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.340956][ 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) 
[ 18.341287][ 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
[   18.342381][  T305] RSP: 0018:ffffc90000586ef0 EFLAGS: 00010246
[   18.342769][  T305] RAX: 0000000000000000 RBX: ffff88800985a000 RCX: 0000000000000001
[   18.343231][  T305] RDX: 0000000000000000 RSI: ffffffffb0c9b941 RDI: ffffffffb04555e0
[   18.343698][  T305] RBP: ffffc90000586fe0 R08: 0000000000000000 R09: 0000000000000000
[   18.344163][  T305] R10: ffffc90000587010 R11: ffffffffb1aa8918 R12: 1ffff920000b0de2
[   18.344633][  T305] R13: 00000000000005dc R14: ffffc90000587010 R15: ffff88800985af08
[   18.345107][  T305] FS:  00007f1ab9da9800(0000) GS:ffff888083537000(0000) knlGS:0000000000000000
[   18.345653][  T305] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.346040][  T305] CR2: 00000000004e5aa8 CR3: 0000000009924002 CR4: 0000000000772ef0
[   18.346697][  T305] PKRU: 55555554
[   18.346931][  T305] Call Trace:
[   18.347161][  T305]  <TASK>
[ 18.347330][ T305] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.347646][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.347957][ T305] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.348275][ T305] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.348658][ T305] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.348968][ T305] netif_set_mtu (net/core/dev.c:9652) 
[ 18.349285][ T305] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.349601][ T305] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 18.350035][ T305] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.350277][ T305] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 18.350699][ T305] br_add_if (net/bridge/br_if.c:697) bridge 
[ 18.351051][ T305] do_set_master (net/core/rtnetlink.c:2948) 
[ 18.351367][ T305] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 18.351676][ T305] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 18.352071][ T305] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.352386][ T305] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.352687][ T305] ? __kernel_text_address (kernel/extable.c:79) 
[ 18.352993][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.353311][ 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) 
[ 18.353615][ T305] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 18.353992][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.354314][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.354617][ T305] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 18.354929][ T305] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 18.355235][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.355548][ T305] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.355898][ T305] ? __create_object (mm/kmemleak.c:771) 
[ 18.356209][ T305] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 18.356529][ T305] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 18.356845][ T305] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.357223][ T305] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 18.357546][ T305] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.357855][ T305] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.358158][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.358479][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.358785][ T305] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.359088][ T305] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.359411][ T305] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.359717][ T305] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.360023][ T305] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.360343][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.360657][ T305] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.360963][ T305] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.361281][ T305] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.361607][ T305] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.361910][ 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) 
[ 18.362215][ T305] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 18.362532][ T305] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.362835][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.363142][ T305] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.363461][ T305] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.363775][ T305] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.364087][ T305] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.364408][ T305] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.364726][ T305] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.365120][ T305] ___sys_sendmsg (net/socket.c:2670) 
[ 18.365431][ T305] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 18.365738][ 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) 
[ 18.366125][ T305] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.366440][ T305] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.366745][ T305] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.367055][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.367377][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.367685][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.367989][ T305] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 18.368318][ T305] __sys_sendmsg (net/socket.c:2700) 
[ 18.368641][ T305] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 18.369019][ T305] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.369344][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.369653][ T305] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.369961][ T305] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.370348][  T305] RIP: 0033:0x7f1ab9f761e7
[ 18.370666][ 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)
[   18.371768][  T305] RSP: 002b:00007ffc75620e78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.372234][  T305] RAX: ffffffffffffffda RBX: 00007ffc756215a0 RCX: 00007f1ab9f761e7
[   18.372707][  T305] RDX: 0000000000000000 RSI: 00007ffc75620ee0 RDI: 0000000000000005
[   18.373178][  T305] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   18.373646][  T305] R10: 0000000025b19910 R11: 0000000000000246 R12: 0000000000000004
[   18.374109][  T305] R13: 00000000686e4b3e R14: 0000000000499600 R15: 0000000000000000
| [   18.610000][  T308] ------------[ cut here ]------------
| [ 18.610417][ T308] WARNING: CPU: 0 PID: 308 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) 
| [   18.611014][  T308] Modules linked in: bridge stp llc sch_ingress vrf veth
| [   18.612996][  T308] Tainted: [W]=WARN
[   18.613236][  T308] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.613766][ T308] 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) 
[ 18.614081][ T308] 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
[   18.615330][  T308] RSP: 0018:ffffc900005a6ef0 EFLAGS: 00010246
[   18.615718][  T308] RAX: 0000000000000000 RBX: ffff88800985a000 RCX: 0000000000000001
[   18.616173][  T308] RDX: 0000000000000000 RSI: ffffffffb0c9b941 RDI: ffffffffb04555e0
[   18.616655][  T308] RBP: ffffc900005a6fe0 R08: 0000000000000000 R09: 0000000000000000
[   18.617108][  T308] R10: ffffc900005a7010 R11: ffffffffb1aa8918 R12: 1ffff920000b4de2
[   18.617574][  T308] R13: 00000000000005dc R14: ffffc900005a7010 R15: ffff88800985af08
[   18.618028][  T308] FS:  00007f7599a4a800(0000) GS:ffff8880834b7000(0000) knlGS:0000000000000000
[   18.618582][  T308] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.618965][  T308] CR2: 00000000004e5ab0 CR3: 000000000f963005 CR4: 0000000000772ef0
[   18.619431][  T308] PKRU: 55555554
[   18.619667][  T308] Call Trace:
[   18.619893][  T308]  <TASK>
[ 18.620050][ T308] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.620365][ T308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.620676][ T308] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.620980][ T308] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.621365][ T308] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.621673][ T308] netif_set_mtu (net/core/dev.c:9652) 
[ 18.621980][ T308] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.622302][ T308] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 18.622731][ T308] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.622962][ T308] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 18.623390][ T308] br_add_if (net/bridge/br_if.c:697) bridge 
[ 18.623743][ T308] do_set_master (net/core/rtnetlink.c:2948) 
[ 18.624051][ T308] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 18.624371][ T308] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 18.624764][ T308] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.625067][ T308] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.625393][ T308] ? __kernel_text_address (kernel/extable.c:79) 
[ 18.625702][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.626012][ T308] ? __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) 
[ 18.626330][ T308] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 18.626708][ T308] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.627014][ T308] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.627327][ T308] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 18.627631][ T308] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 18.627935][ T308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.628238][ T308] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.628547][ T308] ? __create_object (mm/kmemleak.c:771) 
[ 18.628861][ T308] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 18.629168][ T308] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 18.629481][ T308] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.629858][ T308] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 18.630169][ T308] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.630489][ T308] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.630793][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.631103][ T308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.631426][ T308] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.631727][ T308] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.632031][ T308] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.632344][ T308] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.632648][ T308] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.632955][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.633274][ T308] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.633582][ T308] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.633885][ T308] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.634199][ T308] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.634508][ T308] ? 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) 
[ 18.634824][ T308] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 18.635131][ T308] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.635444][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.635756][ T308] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.636062][ T308] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.636377][ T308] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.636689][ T308] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.636996][ T308] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.637305][ T308] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.637694][ T308] ___sys_sendmsg (net/socket.c:2670) 
[ 18.637996][ T308] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 18.638304][ T308] ? __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) 
[ 18.638682][ T308] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.638987][ T308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.639304][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.639616][ T308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.639919][ T308] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 18.640224][ T308] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.640544][ T308] __sys_sendmsg (net/socket.c:2700) 
[ 18.640846][ T308] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 18.641219][ T308] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.641544][ T308] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.641850][ T308] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.642154][ T308] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.642538][  T308] RIP: 0033:0x7f7599c171e7
[ 18.642858][ T308] 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)
[   18.643948][  T308] RSP: 002b:00007fff587a12e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.644417][  T308] RAX: ffffffffffffffda RBX: 00007fff587a1a10 RCX: 00007f7599c171e7
[   18.644893][  T308] RDX: 0000000000000000 RSI: 00007fff587a1350 RDI: 0000000000000005
[   18.645358][  T308] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   18.645813][  T308] R10: 000000001462f910 R11: 0000000000000246 R12: 0000000000000004
[   18.646274][  T308] R13: 00000000686e4b3e R14: 0000000000499600 R15: 0000000000000000
| [   42.007923][  T510] ------------[ cut here ]------------
| [ 42.008673][ T510] WARNING: CPU: 2 PID: 510 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) 
| [   42.009630][  T510] Modules linked in: act_gact act_pedit cls_flower bridge stp llc sch_ingress vrf veth
| [   42.011233][  T510] Tainted: [W]=WARN
[   42.011536][  T510] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.012116][ T510] 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) 
[ 42.012614][ T510] 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
[   42.014331][  T510] RSP: 0018:ffffc90000d5ef70 EFLAGS: 00010246
[   42.014900][  T510] RAX: 0000000000000000 RBX: ffff88800985a000 RCX: 0000000000000001
[   42.015620][  T510] RDX: 0000000000000000 RSI: ffffffffb0c9b941 RDI: ffffffffb04555e0
[   42.016165][  T510] RBP: ffffc90000d5f058 R08: 0000000000000000 R09: 0000000000000000
[   42.016864][  T510] R10: ffffc90000d5f088 R11: ffffffffadf224d4 R12: 1ffff920001abdf2
[   42.017611][  T510] R13: 00000000000005dc R14: ffffc90000d5f088 R15: ffff88800985af08
[   42.018405][  T510] FS:  00007efc01120800(0000) GS:ffff8880835b7000(0000) knlGS:0000000000000000
[   42.019224][  T510] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.019792][  T510] CR2: 00000000004e5ab0 CR3: 000000000aae6002 CR4: 0000000000772ef0
[   42.020483][  T510] PKRU: 55555554
[   42.020968][  T510] Call Trace:
[   42.021398][  T510]  <TASK>
[ 42.021653][ T510] ? __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) 
[ 42.022473][ T510] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 42.023068][ T510] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 42.023588][ T510] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 42.024189][ T510] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.024662][ T510] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.025096][ T510] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.025606][ T510] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.026239][ T510] ? ___sys_sendmsg (net/socket.c:2670) 
[ 42.026837][ T510] ? __sys_sendmsg (net/socket.c:2700) 
[ 42.027289][ T510] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.027720][ T510] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 42.028227][ T510] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.028652][ T510] netif_set_mtu (net/core/dev.c:9652) 
[ 42.029023][ T510] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 42.029436][ T510] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 42.029754][ T510] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 42.030297][ T510] br_del_if (net/bridge/br_if.c:743) bridge 
[ 42.030805][ T510] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 42.031380][ T510] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 42.031984][ T510] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 42.032501][ T510] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.032976][ T510] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.033460][ T510] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.033854][ T510] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.034302][ T510] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.034820][ T510] ? __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) 
[ 42.035241][ T510] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.035937][ T510] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.036432][ T510] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.036932][ T510] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.037373][ T510] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.037841][ T510] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.038345][ T510] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.038756][ T510] ? __create_object (mm/kmemleak.c:771) 
[ 42.039189][ T510] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.039702][ T510] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.040238][ T510] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.041005][ T510] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.041582][ T510] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.042091][ T510] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.042563][ T510] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.043032][ T510] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.043504][ T510] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.043913][ T510] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.044516][ T510] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.044986][ T510] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.045509][ T510] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.046021][ T510] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.046526][ T510] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.046937][ T510] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.047362][ T510] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.047792][ T510] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.048189][ T510] ? 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) 
[ 42.048567][ T510] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.049038][ T510] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.049464][ T510] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.049977][ T510] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.050545][ T510] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.051026][ T510] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.051563][ T510] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.051991][ T510] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.052443][ T510] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.053056][ T510] ___sys_sendmsg (net/socket.c:2670) 
[ 42.053668][ T510] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.054302][ T510] ? __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) 
[ 42.054774][ T510] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.055245][ T510] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.055753][ T510] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.056343][ T510] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.056783][ T510] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 42.057178][ T510] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.057721][ T510] __sys_sendmsg (net/socket.c:2700) 
[ 42.058228][ T510] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.058784][ T510] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.059331][ T510] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.059782][ T510] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.060218][ T510] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.060747][  T510] RIP: 0033:0x7efc012ed1e7
[ 42.061197][ T510] 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)
[   42.062631][  T510] RSP: 002b:00007ffdf1008268 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.063217][  T510] RAX: ffffffffffffffda RBX: 00007ffdf1008990 RCX: 00007efc012ed1e7
[   42.064001][  T510] RDX: 0000000000000000 RSI: 00007ffdf10082d0 RDI: 0000000000000005
[   42.064690][  T510] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   42.065322][  T510] R10: 00007efc011eaee8 R11: 0000000000000246 R12: 0000000000000003
[   42.066026][  T510] R13: 00000000686e4b55 R14: 0000000000499600 R15: 0000000000000000
| [   42.373168][  T512] ------------[ cut here ]------------
| [ 42.373667][ T512] WARNING: CPU: 2 PID: 512 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) 
| [   42.374895][  T512] Modules linked in: act_gact act_pedit cls_flower bridge stp llc sch_ingress vrf veth
| [   42.376540][  T512] Tainted: [W]=WARN
[   42.376904][  T512] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.377442][ T512] 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) 
[ 42.377847][ T512] 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
[   42.379213][  T512] RSP: 0018:ffffc90000d7ef70 EFLAGS: 00010246
[   42.379711][  T512] RAX: 0000000000000000 RBX: ffff88800985a000 RCX: 0000000000000001
[   42.380344][  T512] RDX: 0000000000000000 RSI: ffffffffb0c9b941 RDI: ffffffffb04555e0
[   42.381025][  T512] RBP: ffffc90000d7f058 R08: 0000000000000000 R09: 0000000000000000
[   42.382005][  T512] R10: ffffc90000d7f088 R11: ffffffffb1179160 R12: 1ffff920001afdf2
[   42.382717][  T512] R13: 00000000000005dc R14: ffffc90000d7f088 R15: ffff88800985af08
[   42.383406][  T512] FS:  00007fd0a1e4b800(0000) GS:ffff8880835b7000(0000) knlGS:0000000000000000
[   42.384138][  T512] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.384673][  T512] CR2: 00000000004e5aa8 CR3: 0000000009113004 CR4: 0000000000772ef0
[   42.385317][  T512] PKRU: 55555554
[   42.385603][  T512] Call Trace:
[   42.385876][  T512]  <TASK>
[ 42.386071][ T512] ? __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) 
[ 42.386579][ T512] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 42.387005][ T512] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 42.387396][ T512] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 42.387774][ T512] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.388162][ T512] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.388642][ T512] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.389106][ T512] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.389600][ T512] ? ___sys_sendmsg (net/socket.c:2670) 
[ 42.390121][ T512] ? __sys_sendmsg (net/socket.c:2700) 
[ 42.390579][ T512] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.390964][ T512] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 42.391476][ T512] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.391852][ T512] netif_set_mtu (net/core/dev.c:9652) 
[ 42.392324][ T512] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 42.392791][ T512] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 42.393141][ T512] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 42.393767][ T512] br_del_if (net/bridge/br_if.c:743) bridge 
[ 42.394290][ T512] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 42.394748][ T512] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 42.395149][ T512] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 42.395586][ T512] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.396048][ T512] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.396536][ T512] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.396902][ T512] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.397296][ T512] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.397667][ T512] ? __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) 
[ 42.398064][ T512] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.398540][ T512] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.398953][ T512] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.399379][ T512] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.399767][ T512] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.400129][ T512] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.400520][ T512] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.400903][ T512] ? __create_object (mm/kmemleak.c:771) 
[ 42.401377][ T512] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.401810][ T512] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.402172][ T512] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.402858][ T512] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.403424][ T512] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.404004][ T512] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.404404][ T512] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.404855][ T512] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.405227][ T512] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.405639][ T512] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.406099][ T512] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.406528][ T512] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.406937][ T512] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.407361][ T512] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.407933][ T512] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.408399][ T512] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.408826][ T512] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.409202][ T512] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.409716][ T512] ? 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) 
[ 42.410267][ T512] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.410773][ T512] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.411248][ T512] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.411631][ T512] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.411999][ T512] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.412392][ T512] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.412791][ T512] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.413318][ T512] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.413755][ T512] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.414212][ T512] ___sys_sendmsg (net/socket.c:2670) 
[ 42.414587][ T512] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.414963][ T512] ? __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) 
[ 42.415422][ T512] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.415807][ T512] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.416175][ T512] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.416558][ T512] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.416921][ T512] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 42.417420][ T512] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.417833][ T512] __sys_sendmsg (net/socket.c:2700) 
[ 42.418191][ T512] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.418723][ T512] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.419151][ T512] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.419528][ T512] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.419966][ T512] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.420562][  T512] RIP: 0033:0x7fd0a20181e7
[ 42.420961][ T512] 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)
[   42.422661][  T512] RSP: 002b:00007fff6e743348 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.423351][  T512] RAX: ffffffffffffffda RBX: 00007fff6e743a70 RCX: 00007fd0a20181e7
[   42.423905][  T512] RDX: 0000000000000000 RSI: 00007fff6e7433b0 RDI: 0000000000000005
[   42.424642][  T512] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   42.425312][  T512] R10: 00007fd0a1f15ee8 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