======================================
| [   21.141457][  T313] veth1: entered promiscuous mode
| [   21.143876][  T313] ------------[ cut here ]------------
| [ 21.144406][ T313] WARNING: CPU: 3 PID: 313 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) 
| [   21.145067][  T313] Modules linked in: bridge stp llc 8021q vrf veth
[   21.146115][  T313] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 21.146518][ T313] 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) 
[ 21.146838][ T313] 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
[   21.147963][  T313] RSP: 0018:ffffc90000556ef0 EFLAGS: 00010246
[   21.148368][  T313] RAX: 0000000000000000 RBX: ffff88800fe1a000 RCX: 0000000000000001
[   21.148838][  T313] RDX: 0000000000000000 RSI: ffffffff8bc9b941 RDI: ffffffff8b4555e0
[   21.149454][  T313] RBP: ffffc90000556fe0 R08: 0000000000000000 R09: 0000000000000000
[   21.149919][  T313] R10: ffffc90000557010 R11: ffffffff8caa8918 R12: 1ffff920000aade2
[   21.150529][  T313] R13: 00000000000005dc R14: ffffc90000557010 R15: ffff88800fe1af08
[   21.151003][  T313] FS:  00007f3ef0534800(0000) GS:ffff8880a1837000(0000) knlGS:0000000000000000
[   21.151558][  T313] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.151968][  T313] CR2: 00000000004e5aa8 CR3: 000000000e624003 CR4: 0000000000772ef0
[   21.152456][  T313] PKRU: 55555554
[   21.152701][  T313] Call Trace:
[   21.152935][  T313]  <TASK>
[ 21.153112][ T313] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 21.153430][ T313] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 21.153753][ T313] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 21.154329][ T313] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 21.154725][ T313] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 21.155037][ T313] netif_set_mtu (net/core/dev.c:9652) 
[ 21.155359][ T313] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 21.155682][ T313] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 21.156120][ T313] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 21.156358][ T313] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 21.156783][ T313] br_add_if (net/bridge/br_if.c:697) bridge 
[ 21.157157][ T313] do_set_master (net/core/rtnetlink.c:2948) 
[ 21.157478][ T313] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 21.157789][ T313] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 21.158190][ T313] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 21.158504][ T313] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 21.158810][ T313] ? __kernel_text_address (kernel/extable.c:79) 
[ 21.159139][ T313] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.159450][ T313] ? __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) 
[ 21.159760][ T313] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 21.160162][ T313] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 21.160479][ T313] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 21.160796][ T313] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 21.161115][ T313] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 21.161425][ T313] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 21.161733][ T313] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 21.162040][ T313] ? __create_object (mm/kmemleak.c:771) 
[ 21.162361][ T313] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 21.162669][ T313] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 21.162977][ T313] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 21.163371][ T313] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 21.163686][ T313] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 21.163999][ T313] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 21.164315][ T313] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.164630][ T313] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 21.164940][ T313] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 21.165256][ T313] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 21.165574][ T313] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 21.165879][ T313] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 21.166194][ T313] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 21.166506][ T313] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.166818][ T313] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 21.167138][ T313] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 21.167449][ T313] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 21.167771][ T313] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 21.168090][ T313] ? 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) 
[ 21.168402][ T313] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 21.168717][ T313] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 21.169020][ T313] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.169341][ T313] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 21.169658][ T313] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 21.169982][ T313] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 21.170310][ T313] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 21.170625][ T313] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 21.170941][ T313] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 21.171348][ T313] ___sys_sendmsg (net/socket.c:2670) 
[ 21.171653][ T313] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 21.171958][ T313] ? __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) 
[ 21.172348][ T313] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 21.172657][ T313] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 21.172970][ T313] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.173293][ T313] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 21.173598][ T313] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 21.173906][ T313] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 21.174228][ T313] __sys_sendmsg (net/socket.c:2700) 
[ 21.174567][ T313] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 21.174954][ T313] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 21.175285][ T313] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 21.175608][ T313] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 21.175933][ T313] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   21.176343][  T313] RIP: 0033:0x7f3ef07011e7
[ 21.176668][ T313] 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)
[   21.177775][  T313] RSP: 002b:00007ffd9a664268 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   21.178248][  T313] RAX: ffffffffffffffda RBX: 00007ffd9a664990 RCX: 00007f3ef07011e7
[   21.178713][  T313] RDX: 0000000000000000 RSI: 00007ffd9a6642d0 RDI: 0000000000000005
[   21.179184][  T313] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   21.179643][  T313] R10: 000000000fec1910 R11: 0000000000000246 R12: 0000000000000004
[   21.180112][  T313] R13: 00000000686e3f06 R14: 0000000000499600 R15: 0000000000000000
| [   21.327390][  T315] ------------[ cut here ]------------
| [ 21.327696][ T315] WARNING: CPU: 3 PID: 315 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) 
| [   21.328314][  T315] Modules linked in: bridge stp llc 8021q vrf veth
| [   21.329332][  T315] Tainted: [W]=WARN
[   21.329568][  T315] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 21.329952][ T315] 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) 
[ 21.330276][ T315] 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
[   21.331375][  T315] RSP: 0018:ffffc90000546ef0 EFLAGS: 00010246
[   21.331760][  T315] RAX: 0000000000000000 RBX: ffff88800fe1a000 RCX: 0000000000000001
[   21.332230][  T315] RDX: 0000000000000000 RSI: ffffffff8bc9b941 RDI: ffffffff8b4555e0
[   21.332686][  T315] RBP: ffffc90000546fe0 R08: 0000000000000000 R09: 0000000000000000
[   21.333149][  T315] R10: ffffc90000547010 R11: ffffffff8caa8918 R12: 1ffff920000a8de2
[   21.333603][  T315] R13: 00000000000005dc R14: ffffc90000547010 R15: ffff88800fe1af08
[   21.334061][  T315] FS:  00007ff6ce4b0800(0000) GS:ffff8880a1837000(0000) knlGS:0000000000000000
[   21.334601][  T315] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.334986][  T315] CR2: 00000000004e5ab0 CR3: 000000000e555006 CR4: 0000000000772ef0
[   21.335458][  T315] PKRU: 55555554
[   21.335689][  T315] Call Trace:
[   21.335917][  T315]  <TASK>
[ 21.336099][ T315] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 21.336407][ T315] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 21.336721][ T315] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 21.337023][ T315] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 21.337410][ T315] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 21.337717][ T315] netif_set_mtu (net/core/dev.c:9652) 
[ 21.338024][ T315] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 21.338353][ T315] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 21.338781][ T315] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 21.339012][ T315] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 21.339441][ T315] br_add_if (net/bridge/br_if.c:697) bridge 
[ 21.339793][ T315] do_set_master (net/core/rtnetlink.c:2948) 
[ 21.340112][ T315] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 21.340424][ T315] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 21.340890][ T315] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 21.341225][ T315] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 21.341537][ T315] ? __kernel_text_address (kernel/extable.c:79) 
[ 21.341853][ T315] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.342175][ T315] ? __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) 
[ 21.342480][ T315] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 21.342885][ T315] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 21.343205][ T315] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 21.343512][ T315] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 21.343815][ T315] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 21.344132][ T315] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 21.344440][ T315] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 21.344741][ T315] ? __create_object (mm/kmemleak.c:771) 
[ 21.345048][ T315] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 21.345373][ T315] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 21.345681][ T315] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 21.346057][ T315] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 21.346376][ T315] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 21.346684][ T315] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 21.346989][ T315] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.347307][ T315] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 21.347618][ T315] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 21.347927][ T315] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 21.348243][ T315] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 21.348549][ T315] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 21.348856][ T315] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 21.349176][ T315] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.349492][ T315] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 21.349801][ T315] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 21.350122][ T315] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 21.350440][ T315] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 21.350745][ T315] ? 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) 
[ 21.351062][ T315] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 21.351380][ T315] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 21.351685][ T315] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.351992][ T315] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 21.352340][ T315] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 21.352647][ T315] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 21.352962][ T315] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 21.353282][ T315] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 21.353585][ T315] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 21.353976][ T315] ___sys_sendmsg (net/socket.c:2670) 
[ 21.354291][ T315] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 21.354603][ T315] ? __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) 
[ 21.354986][ T315] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 21.355306][ T315] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 21.355615][ T315] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.355924][ T315] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 21.356239][ T315] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 21.356544][ T315] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 21.356857][ T315] __sys_sendmsg (net/socket.c:2700) 
[ 21.357178][ T315] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 21.357555][ T315] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 21.357873][ T315] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 21.358192][ T315] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 21.358499][ T315] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   21.358875][  T315] RIP: 0033:0x7ff6ce67d1e7
[ 21.359206][ T315] 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)
[   21.360322][  T315] RSP: 002b:00007ffc3b4851c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   21.360793][  T315] RAX: ffffffffffffffda RBX: 00007ffc3b4858f0 RCX: 00007ff6ce67d1e7
[   21.361259][  T315] RDX: 0000000000000000 RSI: 00007ffc3b485230 RDI: 0000000000000005
[   21.361721][  T315] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   21.362188][  T315] R10: 000000001de48910 R11: 0000000000000246 R12: 0000000000000004


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