======================================
| [   18.475117][  T303] veth1: entered promiscuous mode
| [   18.478049][  T303] ------------[ cut here ]------------
| [ 18.478382][ T303] WARNING: CPU: 3 PID: 303 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) 
| [   18.479011][  T303] Modules linked in: bridge stp llc sch_ingress vrf veth
[   18.480059][  T303] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.480480][ T303] 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) 
[ 18.480801][ T303] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   18.481913][  T303] RSP: 0018:ffffc90000546ef0 EFLAGS: 00010246
[   18.482318][  T303] RAX: 0000000000000000 RBX: ffff888004d42000 RCX: 0000000000000001
[   18.482784][  T303] RDX: 0000000000000000 RSI: ffffffffb069b939 RDI: ffffffffafe555e0
[   18.483254][  T303] RBP: ffffc90000546fe0 R08: 0000000000000000 R09: 0000000000000000
[   18.483725][  T303] R10: ffffc90000547010 R11: ffffffffb14a8918 R12: 1ffff920000a8de2
[   18.484356][  T303] R13: 00000000000005dc R14: ffffc90000547010 R15: ffff888004d42f08
[   18.484826][  T303] FS:  00007f8f4ca24800(0000) GS:ffff888083c37000(0000) knlGS:0000000000000000
[   18.485520][  T303] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.485914][  T303] CR2: 00000000004e5aa8 CR3: 0000000009c2c004 CR4: 0000000000772ef0
[   18.486524][  T303] PKRU: 55555554
[   18.486758][  T303] Call Trace:
[   18.486994][  T303]  <TASK>
[ 18.487235][ T303] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.487551][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.487876][ T303] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.488192][ T303] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.488579][ T303] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.488891][ T303] netif_set_mtu (net/core/dev.c:9652) 
[ 18.489291][ T303] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.489633][ T303] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 18.490098][ T303] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.490346][ T303] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 18.490785][ T303] br_add_if (net/bridge/br_if.c:697) bridge 
[ 18.491179][ T303] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 18.491507][ T303] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 18.491841][ T303] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 18.492263][ T303] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.492595][ T303] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.492918][ T303] ? __kernel_text_address (kernel/extable.c:79) 
[ 18.493270][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.493606][ T303] ? __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) 
[ 18.493937][ T303] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 18.494350][ T303] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.494682][ T303] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.495006][ T303] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 18.495338][ T303] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 18.495661][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.495984][ T303] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.496323][ T303] ? __create_object (mm/kmemleak.c:771) 
[ 18.496664][ T303] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 18.496989][ T303] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 18.497326][ T303] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.497731][ T303] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 18.498060][ T303] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.498397][ T303] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.498716][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.499047][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.499395][ T303] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.499716][ T303] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.500041][ T303] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.500367][ T303] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.500696][ T303] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.501022][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.501350][ T303] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.501687][ T303] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.502009][ T303] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.502347][ T303] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.502668][ T303] ? 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) 
[ 18.502990][ T303] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 18.503319][ T303] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.503641][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.503973][ T303] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.504315][ T303] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.504639][ T303] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.504971][ T303] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.505318][ T303] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.505635][ T303] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.506044][ T303] ___sys_sendmsg (net/socket.c:2670) 
[ 18.506371][ T303] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 18.506694][ T303] ? __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) 
[ 18.507109][ T303] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.507436][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.507762][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.508098][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.508420][ T303] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 18.508743][ T303] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.509091][ T303] __sys_sendmsg (net/socket.c:2700) 
[ 18.509424][ T303] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 18.509830][ T303] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.510173][ T303] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.510499][ T303] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.510824][ T303] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.511231][  T303] RIP: 0033:0x7f8f4cbf11e7
[ 18.511573][ T303] 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)
[   18.512752][  T303] RSP: 002b:00007ffdaf336698 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.513255][  T303] RAX: ffffffffffffffda RBX: 00007ffdaf336dc0 RCX: 00007f8f4cbf11e7
[   18.513748][  T303] RDX: 0000000000000000 RSI: 00007ffdaf336700 RDI: 0000000000000005
[   18.514247][  T303] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   18.514743][  T303] R10: 000000001ebc8910 R11: 0000000000000246 R12: 0000000000000004
[   18.515245][  T303] R13: 00000000686e6775 R14: 0000000000499600 R15: 0000000000000000
| [   18.753641][  T307] ------------[ cut here ]------------
| [ 18.753960][ T307] WARNING: CPU: 0 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) 
| [   18.754581][  T307] Modules linked in: bridge stp llc sch_ingress vrf veth
| [   18.755818][  T307] Tainted: [W]=WARN
[   18.756052][  T307] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.757147][ 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) 
[ 18.757466][ T307] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   18.758560][  T307] RSP: 0018:ffffc90000ac6ef0 EFLAGS: 00010246
[   18.758947][  T307] RAX: 0000000000000000 RBX: ffff888004d42000 RCX: 0000000000000001
[   18.759462][  T307] RDX: 0000000000000000 RSI: ffffffffb069b939 RDI: ffffffffafe555e0
[   18.759925][  T307] RBP: ffffc90000ac6fe0 R08: 0000000000000000 R09: 0000000000000000
[   18.760394][  T307] R10: ffffc90000ac7010 R11: ffffffffb14a8918 R12: 1ffff92000158de2
[   18.760852][  T307] R13: 00000000000005dc R14: ffffc90000ac7010 R15: ffff888004d42f08
[   18.761324][  T307] FS:  00007f11f8ffd800(0000) GS:ffff888083ab7000(0000) knlGS:0000000000000000
[   18.761852][  T307] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.762242][  T307] CR2: 00000000004e5ab0 CR3: 000000000a165005 CR4: 0000000000772ef0
[   18.762697][  T307] PKRU: 55555554
[   18.762926][  T307] Call Trace:
[   18.763177][  T307]  <TASK>
[ 18.763344][ T307] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.763649][ T307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.763959][ T307] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.764279][ T307] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.764662][ T307] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.764969][ T307] netif_set_mtu (net/core/dev.c:9652) 
[ 18.765286][ T307] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.765609][ T307] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 18.766036][ T307] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.766277][ T307] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 18.766696][ T307] br_add_if (net/bridge/br_if.c:697) bridge 
[ 18.767047][ T307] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 18.767380][ T307] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 18.767692][ T307] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 18.768102][ T307] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.768411][ T307] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.768712][ T307] ? __kernel_text_address (kernel/extable.c:79) 
[ 18.769021][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.769346][ 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) 
[ 18.769651][ T307] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 18.770030][ T307] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.770358][ T307] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.770663][ T307] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 18.770965][ T307] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 18.771291][ T307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.771599][ T307] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.771899][ T307] ? __create_object (mm/kmemleak.c:771) 
[ 18.772216][ T307] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 18.772523][ T307] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 18.772833][ T307] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.773220][ T307] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 18.773532][ T307] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.773842][ T307] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.774153][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.774462][ T307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.774768][ T307] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.775120][ T307] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.775432][ T307] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.775737][ T307] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.776041][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.776362][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.776674][ T307] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.776979][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.777294][ T307] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.777616][ T307] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.777919][ 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) 
[ 18.778235][ T307] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 18.778543][ T307] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.778845][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.779181][ T307] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.779504][ T307] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.779817][ T307] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.780140][ T307] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.780449][ T307] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.780754][ T307] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.781156][ T307] ___sys_sendmsg (net/socket.c:2670) 
[ 18.781457][ T307] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 18.781759][ 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) 
[ 18.782154][ T307] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.782462][ T307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.782768][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.783105][ T307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.783410][ 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) 
[ 18.783712][ T307] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.784025][ T307] __sys_sendmsg (net/socket.c:2700) 
[ 18.784341][ T307] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 18.784722][ T307] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.785038][ T307] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.785352][ T307] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.785657][ T307] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.786033][  T307] RIP: 0033:0x7f11f91ca1e7
[ 18.786358][ 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)
[   18.787468][  T307] RSP: 002b:00007fff22975a18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.787932][  T307] RAX: ffffffffffffffda RBX: 00007fff22976140 RCX: 00007f11f91ca1e7
[   18.788400][  T307] RDX: 0000000000000000 RSI: 00007fff22975a80 RDI: 0000000000000005
[   18.788865][  T307] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   18.789339][  T307] R10: 000000000e8a0910 R11: 0000000000000246 R12: 0000000000000004
[   18.789792][  T307] R13: 00000000686e6775 R14: 0000000000499600 R15: 0000000000000000
| [   64.147096][  T737] ------------[ cut here ]------------
| [ 64.147441][ T737] WARNING: CPU: 0 PID: 737 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) 
| [   64.148058][  T737] Modules linked in: act_gact act_pedit cls_flower bridge stp llc sch_ingress vrf veth
| [   64.149273][  T737] Tainted: [W]=WARN
[   64.149507][  T737] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 64.149896][ T737] 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) 
[ 64.150222][ T737] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   64.151322][  T737] RSP: 0018:ffffc9000137ef70 EFLAGS: 00010246
[   64.151712][  T737] RAX: 0000000000000000 RBX: ffff888004d42000 RCX: 0000000000000001
[   64.152550][  T737] RDX: 0000000000000000 RSI: ffffffffb069b939 RDI: ffffffffafe555e0
[   64.153033][  T737] RBP: ffffc9000137f058 R08: 0000000000000000 R09: 0000000000000000
[   64.153494][  T737] R10: ffffc9000137f088 R11: ffffffffaca00130 R12: 1ffff9200026fdf2
[   64.153955][  T737] R13: 00000000000005dc R14: ffffc9000137f088 R15: ffff888004d42f08
[   64.154526][  T737] FS:  00007fbdb7f35800(0000) GS:ffff888083ab7000(0000) knlGS:0000000000000000
[   64.155061][  T737] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   64.155453][  T737] CR2: 00000000004e5ab0 CR3: 000000000f814003 CR4: 0000000000772ef0
[   64.155917][  T737] PKRU: 55555554
[   64.156155][  T737] Call Trace:
[   64.156384][  T737]  <TASK>
[ 64.156544][ T737] ? __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) 
[ 64.156931][ T737] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 64.157289][ T737] ? do_set_master (net/core/rtnetlink.c:2932) 
[ 64.157594][ T737] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 64.157895][ T737] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 64.158204][ T737] ? netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 64.158511][ T737] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 64.158810][ T737] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 64.159129][ T737] ? ___sys_sendmsg (net/socket.c:2670) 
[ 64.159453][ T737] ? __sys_sendmsg (net/socket.c:2700) 
[ 64.159757][ T737] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 64.160063][ T737] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 64.160450][ T737] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 64.160764][ T737] netif_set_mtu (net/core/dev.c:9652) 
[ 64.161068][ T737] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 64.161397][ T737] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 64.161629][ T737] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 64.162049][ T737] br_del_if (net/bridge/br_if.c:743) bridge 
[ 64.162400][ T737] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 64.162702][ T737] do_set_master (net/core/rtnetlink.c:2932) 
[ 64.163008][ T737] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 64.163324][ T737] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 64.163711][ T737] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 64.164016][ T737] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 64.164334][ T737] ? __kernel_text_address (kernel/extable.c:79) 
[ 64.164648][ T737] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.164953][ T737] ? __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) 
[ 64.165265][ T737] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 64.165642][ T737] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 64.165945][ T737] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 64.166254][ T737] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 64.166560][ T737] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 64.166863][ T737] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 64.167193][ T737] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 64.167494][ T737] ? __create_object (mm/kmemleak.c:771) 
[ 64.167798][ T737] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 64.168113][ T737] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 64.168422][ T737] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 64.168797][ T737] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 64.169118][ T737] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 64.169436][ T737] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 64.169738][ T737] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.170068][ T737] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 64.170382][ T737] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 64.170684][ T737] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 64.170988][ T737] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 64.171301][ T737] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 64.171612][ T737] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 64.171918][ T737] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.172254][ T737] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 64.172559][ T737] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 64.172864][ T737] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 64.173213][ T737] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 64.173517][ T737] ? 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) 
[ 64.173829][ T737] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 64.174143][ T737] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 64.174445][ T737] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.174758][ T737] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 64.175063][ T737] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 64.175375][ T737] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 64.175696][ T737] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 64.176008][ T737] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 64.176320][ T737] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 64.176706][ T737] ___sys_sendmsg (net/socket.c:2670) 
[ 64.177005][ T737] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 64.177318][ T737] ? __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) 
[ 64.177715][ T737] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 64.178021][ T737] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 64.178338][ T737] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.178648][ T737] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 64.178952][ T737] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 64.179269][ T737] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 64.179584][ T737] __sys_sendmsg (net/socket.c:2700) 
[ 64.179885][ T737] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 64.180271][ T737] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 64.180592][ T737] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 64.180898][ T737] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 64.181209][ T737] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   64.181586][  T737] RIP: 0033:0x7fbdb81021e7
[ 64.181899][ T737] 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)
[   64.182995][  T737] RSP: 002b:00007fff2f3c0be8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   64.183465][  T737] RAX: ffffffffffffffda RBX: 00007fff2f3c1310 RCX: 00007fbdb81021e7
[   64.183922][  T737] RDX: 0000000000000000 RSI: 00007fff2f3c0c50 RDI: 0000000000000005
[   64.184385][  T737] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   64.184847][  T737] R10: 00007fbdb7fffee8 R11: 0000000000000246 R12: 0000000000000003
[   64.185307][  T737] R13: 00000000686e67a2 R14: 0000000000499600 R15: 0000000000000000
| [   64.442032][  T739] ------------[ cut here ]------------
| [ 64.442366][ T739] WARNING: CPU: 0 PID: 739 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) 
| [   64.442973][  T739] Modules linked in: act_gact act_pedit cls_flower bridge stp llc sch_ingress vrf veth
| [   64.445471][  T739] Tainted: [W]=WARN
[   64.445700][  T739] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 64.446085][ T739] 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) 
[ 64.446402][ T739] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   64.447490][  T739] RSP: 0018:ffffc9000138ef70 EFLAGS: 00010246
[   64.447871][  T739] RAX: 0000000000000000 RBX: ffff888004d42000 RCX: 0000000000000001
[   64.448332][  T739] RDX: 0000000000000000 RSI: ffffffffb069b939 RDI: ffffffffafe555e0
[   64.448790][  T739] RBP: ffffc9000138f058 R08: 0000000000000000 R09: 0000000000000000
[   64.449265][  T739] R10: ffffc9000138f088 R11: ffffffffb0b79160 R12: 1ffff92000271df2
[   64.449720][  T739] R13: 00000000000005dc R14: ffffc9000138f088 R15: ffff888004d42f08
[   64.450183][  T739] FS:  00007f5cc6792800(0000) GS:ffff888083ab7000(0000) knlGS:0000000000000000
[   64.450717][  T739] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   64.451117][  T739] CR2: 00000000004e5aa8 CR3: 0000000009c34006 CR4: 0000000000772ef0
[   64.451577][  T739] PKRU: 55555554
[   64.451805][  T739] Call Trace:
[   64.452036][  T739]  <TASK>
[ 64.452199][ T739] ? __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) 
[ 64.452584][ T739] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 64.452933][ T739] ? do_set_master (net/core/rtnetlink.c:2932) 
[ 64.453247][ T739] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 64.453550][ T739] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 64.453853][ T739] ? netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 64.454166][ T739] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 64.454468][ T739] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 64.454774][ T739] ? ___sys_sendmsg (net/socket.c:2670) 
[ 64.455090][ T739] ? __sys_sendmsg (net/socket.c:2700) 
[ 64.455390][ T739] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 64.455693][ T739] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 64.456071][ T739] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 64.456397][ T739] netif_set_mtu (net/core/dev.c:9652) 
[ 64.456700][ T739] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 64.457022][ T739] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 64.457260][ T739] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 64.457684][ T739] br_del_if (net/bridge/br_if.c:743) bridge 
[ 64.458023][ T739] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 64.458334][ T739] do_set_master (net/core/rtnetlink.c:2932) 
[ 64.458644][ T739] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 64.458952][ T739] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 64.459361][ T739] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 64.459667][ T739] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 64.459972][ T739] ? __kernel_text_address (kernel/extable.c:79) 
[ 64.460292][ T739] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.460602][ T739] ? __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) 
[ 64.460907][ T739] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 64.461292][ T739] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 64.461594][ T739] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 64.461895][ T739] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 64.462211][ T739] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 64.462514][ T739] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 64.462820][ T739] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 64.463130][ T739] ? __create_object (mm/kmemleak.c:771) 
[ 64.463439][ T739] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 64.463743][ T739] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 64.464047][ T739] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 64.464437][ T739] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 64.464748][ T739] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 64.465057][ T739] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 64.465383][ T739] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.465693][ T739] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 64.465997][ T739] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 64.466305][ T739] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 64.466612][ T739] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 64.466927][ T739] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 64.467237][ T739] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 64.467545][ T739] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.467853][ T739] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 64.468166][ T739] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 64.468470][ T739] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 64.468784][ T739] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 64.469097][ T739] ? 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) 
[ 64.469416][ T739] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 64.469723][ T739] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 64.470024][ T739] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.470340][ T739] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 64.470649][ T739] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 64.470954][ T739] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 64.471277][ T739] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 64.471592][ T739] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 64.471895][ T739] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 64.472290][ T739] ___sys_sendmsg (net/socket.c:2670) 
[ 64.472589][ T739] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 64.472892][ T739] ? __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) 
[ 64.473279][ T739] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 64.473603][ T739] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 64.473914][ T739] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.474239][ T739] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 64.474541][ T739] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 64.474844][ T739] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 64.475163][ T739] __sys_sendmsg (net/socket.c:2700) 
[ 64.475466][ T739] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 64.475839][ T739] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 64.476172][ T739] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 64.476477][ T739] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 64.476783][ T739] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   64.477166][  T739] RIP: 0033:0x7f5cc695f1e7
[ 64.477480][ T739] 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)
[   64.478570][  T739] RSP: 002b:00007ffff97ae288 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   64.479026][  T739] RAX: ffffffffffffffda RBX: 00007ffff97ae9b0 RCX: 00007f5cc695f1e7
[   64.479507][  T739] RDX: 0000000000000000 RSI: 00007ffff97ae2f0 RDI: 0000000000000005
[   64.479964][  T739] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   64.480436][  T739] R10: 00007f5cc685cee8 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