======================================
| [   20.693252][  T320] veth1: entered promiscuous mode
| [   20.695599][  T320] ------------[ cut here ]------------
| [ 20.695987][ T320] WARNING: CPU: 2 PID: 320 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) 
| [   20.696670][  T320] Modules linked in: bridge stp llc sch_ingress vrf veth
[   20.697796][  T320] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.698206][ T320] 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) 
[ 20.698548][ T320] 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
[   20.699698][  T320] RSP: 0018:ffffc90000886ef0 EFLAGS: 00010246
[   20.700114][  T320] RAX: 0000000000000000 RBX: ffff88800900a000 RCX: 0000000000000001
[   20.700756][  T320] RDX: 0000000000000000 RSI: ffffffffb4e9b941 RDI: ffffffffb46555e0
[   20.701505][  T320] RBP: ffffc90000886fe0 R08: 0000000000000000 R09: 0000000000000000
[   20.702169][  T320] R10: ffffc90000887010 R11: ffffffffb5ca8918 R12: 1ffff92000110de2
[   20.703206][  T320] R13: 00000000000005dc R14: ffffc90000887010 R15: ffff88800900af08
[   20.704088][  T320] FS:  00007fbf208d2800(0000) GS:ffff88807f3b7000(0000) knlGS:0000000000000000
[   20.705028][  T320] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.705757][  T320] CR2: 00000000004e5aa8 CR3: 000000000ddb5001 CR4: 0000000000772ef0
[   20.706651][  T320] PKRU: 55555554
[   20.707135][  T320] Call Trace:
[   20.707568][  T320]  <TASK>
[ 20.707902][ T320] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.708481][ T320] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.709109][ T320] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 20.709691][ T320] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 20.710415][ T320] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 20.711033][ T320] netif_set_mtu (net/core/dev.c:9652) 
[ 20.711622][ T320] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.712259][ T320] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 20.713089][ T320] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.713550][ T320] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 20.714364][ T320] br_add_if (net/bridge/br_if.c:697) bridge 
[ 20.715067][ T320] do_set_master (net/core/rtnetlink.c:2948) 
[ 20.715684][ T320] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 20.716094][ T320] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 20.716525][ T320] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 20.716873][ T320] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 20.717232][ T320] ? __kernel_text_address (kernel/extable.c:79) 
[ 20.717590][ T320] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.717979][ T320] ? __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) 
[ 20.718326][ T320] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 20.718718][ T320] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.719068][ T320] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.719427][ T320] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 20.719769][ T320] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 20.720129][ T320] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.720482][ T320] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.720822][ T320] ? __create_object (mm/kmemleak.c:771) 
[ 20.721213][ T320] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 20.721556][ T320] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 20.721912][ T320] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 20.722326][ T320] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 20.722685][ T320] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.723070][ T320] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.723434][ T320] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.723780][ T320] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.724148][ T320] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.724491][ T320] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.724837][ T320] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.725243][ T320] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.725609][ T320] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.725960][ T320] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.726302][ T320] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.726636][ T320] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.727007][ T320] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.727373][ T320] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.727710][ T320] ? 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) 
[ 20.728076][ T320] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 20.728427][ T320] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.728758][ T320] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.729130][ T320] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.729467][ T320] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.729811][ T320] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.730177][ T320] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.730538][ T320] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.730906][ T320] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.731361][ T320] ___sys_sendmsg (net/socket.c:2670) 
[ 20.731709][ T320] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 20.732070][ T320] ? __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) 
[ 20.732507][ T320] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.732904][ T320] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.733262][ T320] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.733619][ T320] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.733986][ T320] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 20.734327][ T320] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.734679][ T320] __sys_sendmsg (net/socket.c:2700) 
[ 20.735042][ T320] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 20.735471][ T320] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.735838][ T320] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.736208][ T320] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.736560][ T320] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.737014][  T320] RIP: 0033:0x7fbf20a9f1e7
[ 20.737384][ T320] 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)
[   20.738588][  T320] RSP: 002b:00007ffd71bee7d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.739140][  T320] RAX: ffffffffffffffda RBX: 00007ffd71beef00 RCX: 00007fbf20a9f1e7
[   20.739648][  T320] RDX: 0000000000000000 RSI: 00007ffd71bee840 RDI: 0000000000000005
[   20.740169][  T320] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   20.740661][  T320] R10: 0000000029a1d910 R11: 0000000000000246 R12: 0000000000000004
[   20.741203][  T320] R13: 00000000686e1e2d R14: 0000000000499600 R15: 0000000000000000
| [   21.003991][  T322] ------------[ cut here ]------------
| [ 21.004358][ T322] WARNING: CPU: 2 PID: 322 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) 
| [   21.004992][  T322] Modules linked in: bridge stp llc sch_ingress vrf veth
| [   21.006052][  T322] Tainted: [W]=WARN
[   21.006333][  T322] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 21.006737][ T322] 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) 
[ 21.007090][ T322] 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
[   21.008210][  T322] RSP: 0018:ffffc90000636ef0 EFLAGS: 00010246
[   21.008637][  T322] RAX: 0000000000000000 RBX: ffff88800900a000 RCX: 0000000000000001
[   21.009131][  T322] RDX: 0000000000000000 RSI: ffffffffb4e9b941 RDI: ffffffffb46555e0
[   21.009596][  T322] RBP: ffffc90000636fe0 R08: 0000000000000000 R09: 0000000000000000
[   21.010074][  T322] R10: ffffc90000637010 R11: ffffffffb5ca8918 R12: 1ffff920000c6de2
[   21.010536][  T322] R13: 00000000000005dc R14: ffffc90000637010 R15: ffff88800900af08
[   21.011977][  T322] FS:  00007f534f394800(0000) GS:ffff88807f3b7000(0000) knlGS:0000000000000000
[   21.012537][  T322] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.012945][  T322] CR2: 00000000004e5ab0 CR3: 000000000ddb5003 CR4: 0000000000772ef0
[   21.013417][  T322] PKRU: 55555554
[   21.013657][  T322] Call Trace:
[   21.013905][  T322]  <TASK>
[ 21.014077][ T322] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 21.014398][ T322] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 21.014718][ T322] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 21.015053][ T322] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 21.015456][ T322] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 21.015902][ T322] netif_set_mtu (net/core/dev.c:9652) 
[ 21.016250][ T322] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 21.016593][ T322] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 21.017057][ T322] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 21.017312][ T322] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 21.017752][ T322] br_add_if (net/bridge/br_if.c:697) bridge 
[ 21.018142][ T322] do_set_master (net/core/rtnetlink.c:2948) 
[ 21.018475][ T322] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 21.018809][ T322] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 21.019254][ T322] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 21.019601][ T322] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 21.019943][ T322] ? __kernel_text_address (kernel/extable.c:79) 
[ 21.020284][ T322] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.020617][ T322] ? __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) 
[ 21.020955][ T322] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 21.021358][ T322] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 21.021694][ T322] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 21.022056][ T322] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 21.022392][ T322] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 21.022724][ T322] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 21.023075][ T322] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 21.023414][ T322] ? __create_object (mm/kmemleak.c:771) 
[ 21.023751][ T322] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 21.024100][ T322] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 21.024437][ T322] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 21.024846][ T322] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 21.025199][ T322] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 21.025532][ T322] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 21.025890][ T322] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.026227][ T322] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 21.026563][ T322] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 21.026952][ T322] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 21.027294][ T322] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 21.027618][ T322] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 21.027973][ T322] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 21.028296][ T322] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.028618][ T322] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 21.028948][ T322] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 21.029271][ T322] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 21.029604][ T322] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 21.029948][ T322] ? 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) 
[ 21.030281][ T322] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 21.030621][ T322] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 21.030961][ T322] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.031309][ T322] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 21.031631][ T322] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 21.031965][ T322] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 21.032299][ T322] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 21.032651][ T322] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 21.032978][ T322] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 21.033381][ T322] ___sys_sendmsg (net/socket.c:2670) 
[ 21.033694][ T322] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 21.034022][ T322] ? __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) 
[ 21.034420][ T322] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 21.034741][ T322] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 21.035087][ T322] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.035420][ T322] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 21.035751][ T322] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 21.036083][ T322] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 21.036409][ T322] __sys_sendmsg (net/socket.c:2700) 
[ 21.036722][ T322] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 21.037127][ T322] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 21.037477][ T322] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 21.037809][ T322] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 21.038145][ T322] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   21.038534][  T322] RIP: 0033:0x7f534f5611e7
[ 21.038897][ T322] 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)
[   21.040045][  T322] RSP: 002b:00007fffd493ba58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   21.040583][  T322] RAX: ffffffffffffffda RBX: 00007fffd493c180 RCX: 00007f534f5611e7
[   21.041079][  T322] RDX: 0000000000000000 RSI: 00007fffd493bac0 RDI: 0000000000000005
[   21.041575][  T322] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   21.042082][  T322] R10: 0000000014b10910 R11: 0000000000000246 R12: 0000000000000004


Finger prints:
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:br_mtu_auto_adjust:br_add_if