======================================
| [   20.524207][  T314] veth1: entered promiscuous mode
| [   20.537391][  T314] ------------[ cut here ]------------
| [ 20.537767][ T314] WARNING: CPU: 2 PID: 314 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) 
| [   20.538428][  T314] Modules linked in: bridge stp llc 8021q vrf veth
[   20.540481][  T314] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.540893][ T314] 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) 
[ 20.541245][ T314] 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
[   20.542378][  T314] RSP: 0018:ffffc90000596ef0 EFLAGS: 00010246
[   20.542785][  T314] RAX: 0000000000000000 RBX: ffff888004ef2000 RCX: 0000000000000001
[   20.543286][  T314] RDX: 0000000000000000 RSI: ffffffffb669b941 RDI: ffffffffb5e555e0
[   20.543773][  T314] RBP: ffffc90000596fe0 R08: 0000000000000000 R09: 0000000000000000
[   20.544263][  T314] R10: ffffc90000597010 R11: ffffffffb74a8918 R12: 1ffff920000b2de2
[   20.544751][  T314] R13: 00000000000005dc R14: ffffc90000597010 R15: ffff888004ef2f08
[   20.545243][  T314] FS:  00007ffbc0e1b800(0000) GS:ffff88807dbb7000(0000) knlGS:0000000000000000
[   20.546087][  T314] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.546491][  T314] CR2: 00000000004e5aa8 CR3: 000000000a318004 CR4: 0000000000772ef0
[   20.547000][  T314] PKRU: 55555554
[   20.547248][  T314] Call Trace:
[   20.547523][  T314]  <TASK>
[ 20.547698][ T314] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.548044][ T314] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.548380][ T314] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 20.548714][ T314] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 20.549123][ T314] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 20.549453][ T314] netif_set_mtu (net/core/dev.c:9652) 
[ 20.549786][ T314] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.550154][ T314] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 20.550617][ T314] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.550874][ T314] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 20.551321][ T314] br_add_if (net/bridge/br_if.c:697) bridge 
[ 20.551695][ T314] do_set_master (net/core/rtnetlink.c:2948) 
[ 20.552037][ T314] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 20.552365][ T314] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 20.552767][ T314] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 20.553101][ T314] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 20.553426][ T314] ? __kernel_text_address (kernel/extable.c:79) 
[ 20.553749][ T314] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.554095][ T314] ? __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) 
[ 20.554426][ T314] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 20.554829][ T314] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.555168][ T314] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.555487][ T314] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 20.555813][ T314] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 20.556143][ T314] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.556476][ T314] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.556809][ T314] ? __create_object (mm/kmemleak.c:771) 
[ 20.557149][ T314] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 20.557475][ T314] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 20.557798][ T314] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 20.558210][ T314] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 20.558547][ T314] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.558873][ T314] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.559206][ T314] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.559540][ T314] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.559862][ T314] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.560204][ T314] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.560531][ T314] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.560860][ T314] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.561197][ T314] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.561525][ T314] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.561848][ T314] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.562183][ T314] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.562507][ T314] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.562842][ T314] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.563175][ T314] ? 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) 
[ 20.563512][ T314] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 20.563857][ T314] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.564188][ T314] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.564517][ T314] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.564849][ T314] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.565182][ T314] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.565513][ T314] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.565856][ T314] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.566199][ T314] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.566625][ T314] ___sys_sendmsg (net/socket.c:2670) 
[ 20.566945][ T314] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 20.567277][ T314] ? __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) 
[ 20.567676][ T314] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.568012][ T314] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.568339][ T314] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.568680][ T314] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.569015][ T314] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 20.569336][ T314] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.569666][ T314] __sys_sendmsg (net/socket.c:2700) 
[ 20.569991][ T314] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 20.570392][ T314] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.570725][ T314] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.571059][ T314] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.571386][ T314] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.571786][  T314] RIP: 0033:0x7ffbc0fe81e7
[ 20.572141][ T314] 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)
[   20.573556][  T314] RSP: 002b:00007ffc7bd81b88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.574056][  T314] RAX: ffffffffffffffda RBX: 00007ffc7bd822b0 RCX: 00007ffbc0fe81e7
[   20.574535][  T314] RDX: 0000000000000000 RSI: 00007ffc7bd81bf0 RDI: 0000000000000005
[   20.575020][  T314] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   20.575719][  T314] R10: 000000002fb7c910 R11: 0000000000000246 R12: 0000000000000004
[   20.576211][  T314] R13: 00000000686e150e R14: 0000000000499600 R15: 0000000000000000
| [   20.697860][  T315] ------------[ cut here ]------------
| [ 20.698193][ 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) 
| [   20.698843][  T315] Modules linked in: bridge stp llc 8021q vrf veth
| [   20.699899][  T315] Tainted: [W]=WARN
[   20.700149][  T315] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.700536][ 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) 
[ 20.700878][ 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
[   20.701999][  T315] RSP: 0018:ffffc90000596ef0 EFLAGS: 00010246
[   20.702390][  T315] RAX: 0000000000000000 RBX: ffff888004ef2000 RCX: 0000000000000001
[   20.702866][  T315] RDX: 0000000000000000 RSI: ffffffffb669b941 RDI: ffffffffb5e555e0
[   20.703342][  T315] RBP: ffffc90000596fe0 R08: 0000000000000000 R09: 0000000000000000
[   20.703812][  T315] R10: ffffc90000597010 R11: ffffffffb74a8918 R12: 1ffff920000b2de2
[   20.704304][  T315] R13: 00000000000005dc R14: ffffc90000597010 R15: ffff888004ef2f08
[   20.704760][  T315] FS:  00007f83cf632800(0000) GS:ffff88807dc37000(0000) knlGS:0000000000000000
[   20.705366][  T315] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.705752][  T315] CR2: 00000000004e5ab0 CR3: 000000000918a005 CR4: 0000000000772ef0
[   20.706246][  T315] PKRU: 55555554
[   20.706476][  T315] Call Trace:
[   20.706718][  T315]  <TASK>
[ 20.706878][ T315] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.707218][ T315] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.707531][ T315] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 20.707839][ T315] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 20.708251][ T315] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 20.708562][ T315] netif_set_mtu (net/core/dev.c:9652) 
[ 20.708868][ T315] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.709214][ T315] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 20.709652][ T315] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.709885][ T315] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 20.710352][ T315] br_add_if (net/bridge/br_if.c:697) bridge 
[ 20.710711][ T315] do_set_master (net/core/rtnetlink.c:2948) 
[ 20.711049][ T315] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 20.711381][ T315] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 20.711772][ T315] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 20.712115][ T315] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 20.712425][ T315] ? __kernel_text_address (kernel/extable.c:79) 
[ 20.712735][ T315] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.713055][ 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) 
[ 20.713377][ T315] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 20.713756][ T315] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.714104][ T315] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.714429][ T315] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 20.714734][ T315] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 20.715052][ T315] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.715373][ T315] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.715675][ T315] ? __create_object (mm/kmemleak.c:771) 
[ 20.715992][ T315] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 20.716314][ T315] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 20.716627][ T315] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 20.717032][ T315] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 20.717381][ T315] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.717692][ T315] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.718009][ T315] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.718347][ T315] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.718655][ T315] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.718968][ T315] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.719297][ T315] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.719597][ T315] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.719905][ T315] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.720226][ T315] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.720548][ T315] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.720854][ T315] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.721170][ T315] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.721501][ T315] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.721807][ 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) 
[ 20.722125][ T315] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 20.722452][ T315] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.722753][ T315] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.723071][ T315] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.723407][ T315] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.723716][ T315] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.724044][ T315] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.724368][ T315] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.724673][ T315] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.725076][ T315] ___sys_sendmsg (net/socket.c:2670) 
[ 20.725393][ T315] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 20.725702][ 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) 
[ 20.726096][ T315] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.726432][ T315] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.726762][ T315] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.727084][ T315] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.727388][ 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) 
[ 20.727707][ T315] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.728035][ T315] __sys_sendmsg (net/socket.c:2700) 
[ 20.728348][ T315] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 20.728748][ T315] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.729074][ T315] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.729387][ T315] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.729734][ T315] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.730130][  T315] RIP: 0033:0x7f83cf7ff1e7
[ 20.730453][ 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)
[   20.731576][  T315] RSP: 002b:00007fffffa647a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.732047][  T315] RAX: ffffffffffffffda RBX: 00007fffffa64ed0 RCX: 00007f83cf7ff1e7
[   20.732505][  T315] RDX: 0000000000000000 RSI: 00007fffffa64810 RDI: 0000000000000005
[   20.732989][  T315] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   20.733447][  T315] R10: 000000002a9bc910 R11: 0000000000000246 R12: 0000000000000004


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