======================================
| [   20.778723][  T323] veth1: entered promiscuous mode
| [   20.780771][  T323] ------------[ cut here ]------------
| [ 20.781156][ T323] WARNING: CPU: 1 PID: 323 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) 
| [   20.781789][  T323] Modules linked in: bridge stp llc 8021q vrf veth
[   20.782985][  T323] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.783519][ T323] 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) 
[ 20.783849][ T323] 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
[   20.785090][  T323] RSP: 0018:ffffc90000686ef0 EFLAGS: 00010246
[   20.785491][  T323] RAX: 0000000000000000 RBX: ffff888008d62000 RCX: 0000000000000001
[   20.785953][  T323] RDX: 0000000000000000 RSI: ffffffffb949b941 RDI: ffffffffb8c555e0
[   20.786562][  T323] RBP: ffffc90000686fe0 R08: 0000000000000000 R09: 0000000000000000
[   20.787020][  T323] R10: ffffc90000687010 R11: ffffffffba2a8918 R12: 1ffff920000d0de2
[   20.787638][  T323] R13: 00000000000005dc R14: ffffc90000687010 R15: ffff888008d62f08
[   20.788325][  T323] FS:  00007fd648c63800(0000) GS:ffff888073f37000(0000) knlGS:0000000000000000
[   20.788856][  T323] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.789384][  T323] CR2: 00000000004e5aa8 CR3: 000000000c12a001 CR4: 0000000000772ef0
[   20.789852][  T323] PKRU: 55555554
[   20.790230][  T323] Call Trace:
[   20.790464][  T323]  <TASK>
[ 20.790624][ T323] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.790935][ T323] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.791390][ T323] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 20.791696][ T323] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 20.792215][ T323] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 20.792522][ T323] netif_set_mtu (net/core/dev.c:9652) 
[ 20.792827][ T323] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.793342][ T323] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 20.793767][ T323] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.793998][ T323] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 20.794689][ T323] br_add_if (net/bridge/br_if.c:697) bridge 
[ 20.795217][ T323] do_set_master (net/core/rtnetlink.c:2948) 
[ 20.795540][ T323] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 20.795849][ T323] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 20.796278][ T323] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 20.796582][ T323] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 20.796883][ T323] ? __kernel_text_address (kernel/extable.c:79) 
[ 20.797213][ T323] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.797706][ T323] ? __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) 
[ 20.798010][ T323] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 20.798396][ T323] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.798710][ T323] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.799013][ T323] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 20.799323][ T323] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 20.799630][ T323] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.799935][ T323] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.800243][ T323] ? __create_object (mm/kmemleak.c:771) 
[ 20.800548][ T323] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 20.800853][ T323] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 20.801171][ T323] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 20.801546][ T323] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 20.801856][ T323] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.802172][ T323] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.802475][ T323] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.802784][ T323] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.803095][ T323] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.803403][ T323] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.803708][ T323] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.804011][ T323] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.804322][ T323] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.804629][ T323] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.804936][ T323] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.805249][ T323] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.805565][ T323] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.805888][ T323] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.806201][ T323] ? 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) 
[ 20.806506][ T323] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 20.806814][ T323] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.807126][ T323] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.807436][ T323] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.807742][ T323] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.808063][ T323] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.808375][ T323] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.808682][ T323] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.808984][ T323] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.809379][ T323] ___sys_sendmsg (net/socket.c:2670) 
[ 20.809680][ T323] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 20.809982][ T323] ? __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) 
[ 20.810372][ T323] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.810679][ T323] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.810983][ T323] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.811298][ T323] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.811602][ T323] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 20.811905][ T323] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.812222][ T323] __sys_sendmsg (net/socket.c:2700) 
[ 20.812531][ T323] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 20.812906][ T323] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.813228][ T323] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.813532][ T323] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.813835][ T323] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.814219][  T323] RIP: 0033:0x7fd648e301e7
[ 20.814543][ T323] 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)
[   20.815649][  T323] RSP: 002b:00007ffff2dcb168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.816117][  T323] RAX: ffffffffffffffda RBX: 00007ffff2dcb890 RCX: 00007fd648e301e7
[   20.816578][  T323] RDX: 0000000000000000 RSI: 00007ffff2dcb1d0 RDI: 0000000000000005
[   20.817054][  T323] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   20.817513][  T323] R10: 00000000333a2910 R11: 0000000000000246 R12: 0000000000000004
[   20.817970][  T323] R13: 00000000686e49d4 R14: 0000000000499600 R15: 0000000000000000
| [   54.618243][  T503] ------------[ cut here ]------------
| [ 54.618593][ T503] WARNING: CPU: 1 PID: 503 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) 
| [   54.619407][  T503] Modules linked in: bridge stp llc 8021q vrf veth
| [   54.622189][  T503] Tainted: [W]=WARN
[   54.622472][  T503] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 54.622948][ T503] 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) 
[ 54.623328][ T503] 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
[   54.624453][  T503] RSP: 0018:ffffc90000f46f70 EFLAGS: 00010246
[   54.624842][  T503] RAX: 0000000000000000 RBX: ffff888008d62000 RCX: 0000000000000001
[   54.625433][  T503] RDX: 0000000000000000 RSI: ffffffffb949b941 RDI: ffffffffb8c555e0
[   54.625893][  T503] RBP: ffffc90000f47058 R08: 0000000000000000 R09: 0000000000000000
[   54.626375][  T503] R10: ffffc90000f47088 R11: ffffffffb5800130 R12: 1ffff920001e8df2
[   54.626975][  T503] R13: 00000000000005dc R14: ffffc90000f47088 R15: ffff888008d62f08
[   54.627487][  T503] FS:  00007f7556e51800(0000) GS:ffff888073f37000(0000) knlGS:0000000000000000
[   54.628331][  T503] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   54.628789][  T503] CR2: 00000000004e5aa8 CR3: 000000000c7ea001 CR4: 0000000000772ef0
[   54.629333][  T503] PKRU: 55555554
[   54.629567][  T503] Call Trace:
[   54.629802][  T503]  <TASK>
[ 54.630062][ T503] ? __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) 
[ 54.630453][ T503] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 54.630800][ T503] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 54.631240][ T503] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 54.631615][ T503] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 54.631943][ T503] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 54.632413][ T503] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 54.632775][ T503] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 54.633117][ T503] ? ___sys_sendmsg (net/socket.c:2670) 
[ 54.633512][ T503] ? __sys_sendmsg (net/socket.c:2700) 
[ 54.633816][ T503] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 54.634145][ T503] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 54.634532][ T503] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.634944][ T503] netif_set_mtu (net/core/dev.c:9652) 
[ 54.635347][ T503] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 54.635795][ T503] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 54.636110][ T503] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 54.636612][ T503] br_del_if (net/bridge/br_if.c:743) bridge 
[ 54.636948][ T503] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 54.637303][ T503] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 54.637617][ T503] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 54.637928][ T503] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 54.638336][ T503] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 54.638646][ T503] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 54.638952][ T503] ? __kernel_text_address (kernel/extable.c:79) 
[ 54.639311][ T503] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.639634][ T503] ? __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) 
[ 54.639943][ T503] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 54.640347][ T503] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 54.640654][ T503] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 54.640956][ T503] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 54.641285][ T503] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 54.641592][ T503] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.641907][ T503] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 54.642234][ T503] ? __create_object (mm/kmemleak.c:771) 
[ 54.642544][ T503] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 54.642851][ T503] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 54.643198][ T503] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 54.643590][ T503] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 54.643904][ T503] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 54.644406][ T503] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 54.644724][ T503] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.645072][ T503] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.645435][ T503] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 54.645745][ T503] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 54.646177][ T503] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 54.646619][ T503] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 54.646947][ T503] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 54.647365][ T503] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.647788][ T503] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 54.648138][ T503] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 54.648541][ T503] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 54.648863][ T503] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 54.649298][ T503] ? 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) 
[ 54.649610][ T503] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 54.649920][ T503] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 54.650357][ T503] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.650768][ T503] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 54.651118][ T503] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 54.651528][ T503] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 54.651846][ T503] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 54.652187][ T503] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 54.652493][ T503] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 54.653005][ T503] ___sys_sendmsg (net/socket.c:2670) 
[ 54.653570][ T503] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 54.653883][ T503] ? __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) 
[ 54.654285][ T503] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 54.654597][ T503] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.655015][ T503] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.655419][ T503] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.655781][ T503] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 54.656203][ T503] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 54.656527][ T503] __sys_sendmsg (net/socket.c:2700) 
[ 54.656918][ T503] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 54.657382][ T503] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 54.657771][ T503] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 54.658136][ T503] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 54.658459][ T503] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   54.658838][  T503] RIP: 0033:0x7f755701e1e7
[ 54.659247][ T503] 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)
[   54.660502][  T503] RSP: 002b:00007ffda2118198 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   54.661102][  T503] RAX: ffffffffffffffda RBX: 00007ffda21188c0 RCX: 00007f755701e1e7
[   54.661562][  T503] RDX: 0000000000000000 RSI: 00007ffda2118200 RDI: 0000000000000005
[   54.662151][  T503] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   54.662669][  T503] R10: 00007f7556f1bee8 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