======================================
| [   20.895532][  T325] veth1: entered promiscuous mode
| [   20.897070][  T325] ------------[ cut here ]------------
| [ 20.897403][ T325] WARNING: CPU: 0 PID: 325 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) 
| [   20.898030][  T325] Modules linked in: bridge stp llc 8021q vrf veth
[   20.899053][  T325] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.899452][ T325] 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) 
[ 20.899779][ T325] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   20.901055][  T325] RSP: 0018:ffffc90000586ef0 EFLAGS: 00010246
[   20.901444][  T325] RAX: 0000000000000000 RBX: ffff888009562000 RCX: 0000000000000001
[   20.901914][  T325] RDX: 0000000000000000 RSI: ffffffffa009b939 RDI: ffffffff9f8555e0
[   20.902375][  T325] RBP: ffffc90000586fe0 R08: 0000000000000000 R09: 0000000000000000
[   20.902849][  T325] R10: ffffc90000587010 R11: ffffffffa0ea8918 R12: 1ffff920000b0de2
[   20.903321][  T325] R13: 00000000000005dc R14: ffffc90000587010 R15: ffff888009562f08
[   20.903808][  T325] FS:  00007f7a763bb800(0000) GS:ffff8880940b7000(0000) knlGS:0000000000000000
[   20.904350][  T325] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.904746][  T325] CR2: 00000000004e5aa8 CR3: 0000000016899006 CR4: 0000000000772ef0
[   20.905273][  T325] PKRU: 55555554
[   20.905504][  T325] Call Trace:
[   20.905747][  T325]  <TASK>
[ 20.905909][ T325] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.906219][ T325] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.906546][ T325] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 20.906854][ T325] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 20.907242][ T325] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 20.907560][ T325] netif_set_mtu (net/core/dev.c:9652) 
[ 20.907881][ T325] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.908200][ T325] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 20.908638][ T325] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.908873][ T325] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 20.909294][ T325] br_add_if (net/bridge/br_if.c:697) bridge 
[ 20.909655][ T325] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 20.909969][ T325] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 20.910282][ T325] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 20.910680][ T325] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 20.910991][ T325] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 20.911296][ T325] ? __kernel_text_address (kernel/extable.c:79) 
[ 20.911613][ T325] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.911930][ T325] ? __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) 
[ 20.912238][ T325] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 20.912625][ T325] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.912936][ T325] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.913253][ T325] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 20.913569][ T325] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 20.913880][ T325] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.914189][ T325] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.914493][ T325] ? __create_object (mm/kmemleak.c:771) 
[ 20.914809][ T325] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 20.915119][ T325] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 20.915429][ T325] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 20.915817][ T325] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 20.916136][ T325] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.916450][ T325] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.916767][ T325] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.917082][ T325] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.917388][ T325] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.917699][ T325] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.918010][ T325] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.918325][ T325] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.918643][ T325] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.918960][ T325] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.919277][ T325] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.919593][ T325] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.919904][ T325] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.920224][ T325] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.920546][ T325] ? 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) 
[ 20.920855][ T325] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 20.921166][ T325] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.921474][ T325] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.921793][ T325] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.922110][ T325] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.922419][ T325] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.922743][ T325] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.923065][ T325] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.923373][ T325] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.923776][ T325] ___sys_sendmsg (net/socket.c:2670) 
[ 20.924080][ T325] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 20.924386][ T325] ? __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) 
[ 20.924775][ T325] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.925088][ T325] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.925397][ T325] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.925715][ T325] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.926027][ T325] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 20.926331][ T325] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.926651][ T325] __sys_sendmsg (net/socket.c:2700) 
[ 20.926958][ T325] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 20.927602][ T325] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.927929][ T325] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.928238][ T325] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.928777][ T325] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.929159][  T325] RIP: 0033:0x7f7a765881e7
[ 20.929481][ T325] 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)
[   20.930599][  T325] RSP: 002b:00007ffe3f34c178 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.931064][  T325] RAX: ffffffffffffffda RBX: 00007ffe3f34c8a0 RCX: 00007f7a765881e7
[   20.932217][  T325] RDX: 0000000000000000 RSI: 00007ffe3f34c1e0 RDI: 0000000000000005
[   20.932692][  T325] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   20.933393][  T325] R10: 00000000309b3910 R11: 0000000000000246 R12: 0000000000000004
[   20.933862][  T325] R13: 00000000686e73dd R14: 0000000000499600 R15: 0000000000000000
| [   54.642660][  T505] ------------[ cut here ]------------
| [ 54.642987][ T505] WARNING: CPU: 0 PID: 505 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) 
| [   54.643618][  T505] Modules linked in: bridge stp llc 8021q vrf veth
| [   54.646137][  T505] Tainted: [W]=WARN
[   54.646380][  T505] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 54.646772][ T505] 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) 
[ 54.647194][ T505] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   54.648303][  T505] RSP: 0018:ffffc90000d56f70 EFLAGS: 00010246
[   54.648705][  T505] RAX: 0000000000000000 RBX: ffff888009562000 RCX: 0000000000000001
[   54.649164][  T505] RDX: 0000000000000000 RSI: ffffffffa009b939 RDI: ffffffff9f8555e0
[   54.649629][  T505] RBP: ffffc90000d57058 R08: 0000000000000000 R09: 0000000000000000
[   54.650090][  T505] R10: ffffc90000d57088 R11: ffffffff9c400130 R12: 1ffff920001aadf2
[   54.650554][  T505] R13: 00000000000005dc R14: ffffc90000d57088 R15: ffff888009562f08
[   54.651011][  T505] FS:  00007f6d0f91c800(0000) GS:ffff8880940b7000(0000) knlGS:0000000000000000
[   54.651552][  T505] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   54.651952][  T505] CR2: 00000000004e5aa8 CR3: 000000001625f006 CR4: 0000000000772ef0
[   54.652410][  T505] PKRU: 55555554
[   54.652646][  T505] Call Trace:
[   54.652874][  T505]  <TASK>
[ 54.653028][ T505] ? __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) 
[ 54.653417][ T505] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 54.653772][ T505] ? do_set_master (net/core/rtnetlink.c:2932) 
[ 54.654085][ T505] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 54.654390][ T505] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 54.654702][ T505] ? netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 54.655004][ T505] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 54.655303][ T505] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 54.655618][ T505] ? ___sys_sendmsg (net/socket.c:2670) 
[ 54.655922][ T505] ? __sys_sendmsg (net/socket.c:2700) 
[ 54.656222][ T505] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 54.656558][ T505] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 54.656939][ T505] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.657251][ T505] netif_set_mtu (net/core/dev.c:9652) 
[ 54.657567][ T505] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 54.657889][ T505] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 54.658119][ T505] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 54.658547][ T505] br_del_if (net/bridge/br_if.c:743) bridge 
[ 54.658894][ T505] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 54.659197][ T505] do_set_master (net/core/rtnetlink.c:2932) 
[ 54.659503][ T505] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 54.659828][ T505] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 54.660212][ T505] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 54.660514][ T505] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 54.660828][ T505] ? __kernel_text_address (kernel/extable.c:79) 
[ 54.661142][ T505] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.661447][ T505] ? __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) 
[ 54.661759][ T505] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 54.662139][ T505] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 54.662444][ T505] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 54.662753][ T505] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 54.663058][ T505] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 54.663371][ T505] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.663689][ T505] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 54.663988][ T505] ? __create_object (mm/kmemleak.c:771) 
[ 54.664298][ T505] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 54.664612][ T505] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 54.664918][ T505] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 54.665294][ T505] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 54.665615][ T505] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 54.665929][ T505] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 54.666232][ T505] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.666553][ T505] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.666857][ T505] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 54.667156][ T505] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 54.667462][ T505] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 54.667774][ T505] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 54.668079][ T505] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 54.668391][ T505] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.668717][ T505] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 54.669020][ T505] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 54.669323][ T505] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 54.669644][ T505] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 54.669947][ T505] ? 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) 
[ 54.670251][ T505] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 54.670572][ T505] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 54.670875][ T505] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.671187][ T505] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 54.671492][ T505] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 54.671807][ T505] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 54.672117][ T505] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 54.672425][ T505] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 54.672743][ T505] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 54.673139][ T505] ___sys_sendmsg (net/socket.c:2670) 
[ 54.673442][ T505] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 54.673755][ T505] ? __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) 
[ 54.674133][ T505] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 54.674439][ T505] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.674758][ T505] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.675076][ T505] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.675379][ T505] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 54.675690][ T505] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 54.676002][ T505] __sys_sendmsg (net/socket.c:2700) 
[ 54.676304][ T505] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 54.676685][ T505] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 54.677002][ T505] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 54.677306][ T505] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 54.677623][ T505] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   54.677998][  T505] RIP: 0033:0x7f6d0fae91e7
[ 54.678313][ T505] 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)
[   54.679649][  T505] RSP: 002b:00007ffeed1365d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   54.680340][  T505] RAX: ffffffffffffffda RBX: 00007ffeed136d00 RCX: 00007f6d0fae91e7
[   54.680804][  T505] RDX: 0000000000000000 RSI: 00007ffeed136640 RDI: 0000000000000005
[   54.681256][  T505] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   54.681944][  T505] R10: 00007f6d0f9e6ee8 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