======================================
| [   19.314487][  T299] veth1: entered promiscuous mode
| [   19.317150][  T299] ------------[ cut here ]------------
| [ 19.318635][ T299] WARNING: CPU: 0 PID: 299 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   19.319580][  T299] Modules linked in: bridge stp llc vrf veth
[   19.321241][  T299] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.321942][ T299] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 19.322535][ T299] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   19.324512][  T299] RSP: 0018:ffffc90000596ef0 EFLAGS: 00010246
[   19.325233][  T299] RAX: 0000000000000000 RBX: ffff88800c89a000 RCX: 0000000000000001
[   19.326071][  T299] RDX: 0000000000000000 RSI: ffffffffbba9b941 RDI: ffffffffbb2555e0
[   19.326921][  T299] RBP: ffffc90000596fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.327771][  T299] R10: ffffc90000597010 R11: ffffffffbc8a8918 R12: 1ffff920000b2de2
[   19.328870][  T299] R13: 00000000000005dc R14: ffffc90000597010 R15: ffff88800c89af08
[   19.329594][  T299] FS:  00007f24ae17f800(0000) GS:ffff8880786b7000(0000) knlGS:0000000000000000
[   19.330565][  T299] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.331274][  T299] CR2: 00000000004e5aa8 CR3: 000000000a49a004 CR4: 0000000000772ef0
[   19.332106][  T299] PKRU: 55555554
[   19.332533][  T299] Call Trace:
[   19.332956][  T299]  <TASK>
[ 19.333263][ T299] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.333824][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.334434][ T299] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.334986][ T299] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.335684][ T299] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.336266][ T299] netif_set_mtu (net/core/dev.c:9652) 
[ 19.336828][ T299] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.337400][ T299] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.337997][ T299] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.338414][ T299] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.339147][ T299] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.339683][ T299] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.340221][ T299] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.340787][ T299] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.341478][ T299] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.342040][ T299] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.342602][ T299] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.343170][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.343737][ T299] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 19.344305][ T299] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.344981][ T299] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.345540][ T299] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.346085][ T299] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.346658][ T299] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.347232][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.347778][ T299] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.348331][ T299] ? __create_object (mm/kmemleak.c:771) 
[ 19.348901][ T299] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.349455][ T299] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.350016][ T299] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.350696][ T299] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.351267][ T299] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.351822][ T299] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.352372][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.352934][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.353492][ T299] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.354040][ T299] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.354602][ T299] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.355145][ T299] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.355715][ T299] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.356301][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.356855][ T299] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.357423][ T299] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.357976][ T299] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.358566][ T299] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.359114][ T299] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 19.359676][ T299] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.360250][ T299] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.360793][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.361352][ T299] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.361908][ T299] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.362481][ T299] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.363064][ T299] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.363639][ T299] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.364196][ T299] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.364895][ T299] ___sys_sendmsg (net/socket.c:2670) 
[ 19.365444][ T299] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.365984][ T299] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 19.367259][ T299] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.367675][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.368205][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.368760][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.369315][ T299] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.369869][ T299] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.370447][ T299] __sys_sendmsg (net/socket.c:2700) 
[ 19.370996][ T299] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.372218][ T299] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.372642][ T299] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.373155][ T299] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.373724][ T299] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.374423][  T299] RIP: 0033:0x7f24ae34c1e7
[ 19.375001][ T299] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   19.377173][  T299] RSP: 002b:00007ffc0d636498 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.378022][  T299] RAX: ffffffffffffffda RBX: 00007ffc0d636bc0 RCX: 00007f24ae34c1e7
[   19.378863][  T299] RDX: 0000000000000000 RSI: 00007ffc0d636500 RDI: 0000000000000005
[   19.379710][  T299] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.380778][  T299] R10: 0000000005166910 R11: 0000000000000246 R12: 0000000000000004
[   19.381506][  T299] R13: 00000000686e3fb7 R14: 0000000000499600 R15: 0000000000000000
| [   19.514062][  T301] ------------[ cut here ]------------
| [ 19.514421][ T301] WARNING: CPU: 2 PID: 301 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   19.515055][  T301] Modules linked in: bridge stp llc vrf veth
| [   19.516140][  T301] Tainted: [W]=WARN
[   19.516456][  T301] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.516861][ T301] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 19.517222][ T301] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   19.518364][  T301] RSP: 0018:ffffc90000506ef0 EFLAGS: 00010246
[   19.518775][  T301] RAX: 0000000000000000 RBX: ffff88800c89a000 RCX: 0000000000000001
[   19.519264][  T301] RDX: 0000000000000000 RSI: ffffffffbba9b941 RDI: ffffffffbb2555e0
[   19.519738][  T301] RBP: ffffc90000506fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.520228][  T301] R10: ffffc90000507010 R11: ffffffffbc8a8918 R12: 1ffff920000a0de2
[   19.520710][  T301] R13: 00000000000005dc R14: ffffc90000507010 R15: ffff88800c89af08
[   19.521207][  T301] FS:  00007f6313966800(0000) GS:ffff8880787b7000(0000) knlGS:0000000000000000
[   19.521797][  T301] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.522216][  T301] CR2: 00000000004e5ab0 CR3: 00000000092bd005 CR4: 0000000000772ef0
[   19.522692][  T301] PKRU: 55555554
[   19.522944][  T301] Call Trace:
[   19.523199][  T301]  <TASK>
[ 19.523376][ T301] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.523706][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.524032][ T301] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.524368][ T301] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.524848][ T301] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.525413][ T301] netif_set_mtu (net/core/dev.c:9652) 
[ 19.525881][ T301] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.526277][ T301] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.526728][ T301] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.526977][ T301] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.527456][ T301] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.527821][ T301] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.528152][ T301] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.528512][ T301] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.528923][ T301] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.529275][ T301] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.529605][ T301] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.529935][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.530355][ T301] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 19.530739][ T301] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.531266][ T301] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.531603][ T301] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.531920][ T301] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.532268][ T301] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.532596][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.532921][ T301] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.533267][ T301] ? __create_object (mm/kmemleak.c:771) 
[ 19.533603][ T301] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.533928][ T301] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.534281][ T301] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.534682][ T301] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.535017][ T301] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.535392][ T301] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.535719][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.536045][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.536410][ T301] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.536731][ T301] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.537059][ T301] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.537402][ T301] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.537724][ T301] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.538048][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.538401][ T301] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.538729][ T301] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.539052][ T301] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.539425][ T301] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.539752][ T301] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 19.540072][ T301] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.540430][ T301] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.540750][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.541087][ T301] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.541438][ T301] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.541766][ T301] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.542093][ T301] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.542450][ T301] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.542770][ T301] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.543177][ T301] ___sys_sendmsg (net/socket.c:2670) 
[ 19.543551][ T301] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.543878][ T301] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 19.544305][ T301] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.544632][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.544959][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.545315][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.545636][ T301] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.545965][ T301] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.546335][ T301] __sys_sendmsg (net/socket.c:2700) 
[ 19.546664][ T301] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.547054][ T301] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.547412][ T301] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.547739][ T301] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.548065][ T301] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.548507][  T301] RIP: 0033:0x7f6313b331e7
[ 19.548851][ T301] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   19.549993][  T301] RSP: 002b:00007ffda98eb588 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.550510][  T301] RAX: ffffffffffffffda RBX: 00007ffda98ebcb0 RCX: 00007f6313b331e7
[   19.550995][  T301] RDX: 0000000000000000 RSI: 00007ffda98eb5f0 RDI: 0000000000000005
[   19.551498][  T301] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.551971][  T301] R10: 000000002092b910 R11: 0000000000000246 R12: 0000000000000004


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