======================================
| [   19.327542][  T309] veth1: entered promiscuous mode
| [   19.339040][  T309] ------------[ cut here ]------------
| [ 19.339505][ T309] WARNING: CPU: 0 PID: 309 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) 
| [   19.340261][  T309] Modules linked in: bridge stp llc vrf veth
[   19.341335][  T309] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.341943][ T309] 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) 
[ 19.342548][ T309] 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
[   19.343717][  T309] RSP: 0018:ffffc90000566ef0 EFLAGS: 00010246
[   19.344110][  T309] RAX: 0000000000000000 RBX: ffff88801357a000 RCX: 0000000000000001
[   19.344596][  T309] RDX: 0000000000000000 RSI: ffffffffa789b939 RDI: ffffffffa70555e0
[   19.345062][  T309] RBP: ffffc90000566fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.345606][  T309] R10: ffffc90000567010 R11: ffffffffa86a8918 R12: 1ffff920000acde2
[   19.346229][  T309] R13: 00000000000005dc R14: ffffc90000567010 R15: ffff88801357af08
[   19.346711][  T309] FS:  00007fa2e0a9a800(0000) GS:ffff88808c8b7000(0000) knlGS:0000000000000000
[   19.347321][  T309] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.347722][  T309] CR2: 00000000004e5aa8 CR3: 00000000134d6004 CR4: 0000000000772ef0
[   19.348225][  T309] PKRU: 55555554
[   19.348502][  T309] Call Trace:
[   19.348983][  T309]  <TASK>
[ 19.349154][ T309] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.349515][ T309] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.349885][ T309] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.350216][ T309] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.350648][ T309] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.350975][ T309] netif_set_mtu (net/core/dev.c:9652) 
[ 19.351314][ T309] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.351664][ T309] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.352120][ T309] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.352396][ T309] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.352892][ T309] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.353507][ T309] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 19.354077][ T309] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.354444][ T309] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.355011][ T309] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.355351][ T309] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.355695][ T309] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.356160][ T309] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.356743][ T309] ? __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) 
[ 19.357247][ T309] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.357899][ T309] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.358472][ T309] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.359018][ T309] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.359602][ T309] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.360176][ T309] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.360760][ T309] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.361353][ T309] ? __create_object (mm/kmemleak.c:771) 
[ 19.361876][ T309] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.362349][ T309] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.362752][ T309] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.363357][ T309] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.363951][ T309] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.364559][ T309] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.365113][ T309] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.365704][ T309] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.366280][ T309] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.366853][ T309] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.367440][ T309] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.368020][ T309] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.368617][ T309] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.369162][ T309] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.369761][ T309] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.370359][ T309] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.370935][ T309] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.371557][ T309] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.372128][ T309] ? 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) 
[ 19.372732][ T309] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 19.373333][ T309] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.373897][ T309] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.374497][ T309] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.375085][ T309] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.375685][ T309] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.376282][ T309] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.376874][ T309] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.377461][ T309] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.378207][ T309] ___sys_sendmsg (net/socket.c:2670) 
[ 19.378805][ T309] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.379400][ T309] ? __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) 
[ 19.380604][ T309] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.381181][ T309] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.381772][ T309] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.384991][ T309] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.385333][ T309] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.385825][ T309] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.386436][ T309] __sys_sendmsg (net/socket.c:2700) 
[ 19.386804][ T309] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.387206][ T309] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.387566][ T309] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.387894][ T309] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.388220][ T309] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.388684][  T309] RIP: 0033:0x7fa2e0c671e7
[ 19.389031][ T309] 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)
[   19.390577][  T309] RSP: 002b:00007fff9df101f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.391074][  T309] RAX: ffffffffffffffda RBX: 00007fff9df10920 RCX: 00007fa2e0c671e7
[   19.391585][  T309] RDX: 0000000000000000 RSI: 00007fff9df10260 RDI: 0000000000000005
[   19.392080][  T309] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.392626][  T309] R10: 0000000010018910 R11: 0000000000000246 R12: 0000000000000004
[   19.393117][  T309] R13: 00000000686e73a8 R14: 0000000000499600 R15: 0000000000000000
| [   29.182408][  T362] ------------[ cut here ]------------
| [ 29.182727][ T362] WARNING: CPU: 0 PID: 362 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) 
| [   29.183345][  T362] Modules linked in: bridge stp llc vrf veth
| [   29.184369][  T362] Tainted: [W]=WARN
[   29.184606][  T362] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 29.184987][ T362] 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) 
[ 29.185309][ T362] 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
[   29.186415][  T362] RSP: 0018:ffffc90000866f70 EFLAGS: 00010246
[   29.186801][  T362] RAX: 0000000000000000 RBX: ffff88801357a000 RCX: 0000000000000001
[   29.187260][  T362] RDX: 0000000000000000 RSI: ffffffffa789b939 RDI: ffffffffa70555e0
[   29.187727][  T362] RBP: ffffc90000867058 R08: 0000000000000000 R09: 0000000000000000
[   29.188183][  T362] R10: ffffc90000867088 R11: ffffffffa3c00130 R12: 1ffff9200010cdf2
[   29.188648][  T362] R13: 00000000000005dc R14: ffffc90000867088 R15: ffff88801357af08
[   29.189106][  T362] FS:  00007fae12c30800(0000) GS:ffff88808c8b7000(0000) knlGS:0000000000000000
[   29.189642][  T362] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.190026][  T362] CR2: 00007f7c44b52258 CR3: 000000000a96a003 CR4: 0000000000772ef0
[   29.190521][  T362] PKRU: 55555554
[   29.190749][  T362] Call Trace:
[   29.190979][  T362]  <TASK>
[ 29.191137][ T362] ? __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) 
[ 29.191530][ T362] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 29.191879][ T362] ? do_set_master (net/core/rtnetlink.c:2932) 
[ 29.192188][ T362] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 29.192503][ T362] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 29.192807][ T362] ? netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 29.193111][ T362] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 29.193431][ T362] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 29.193740][ T362] ? ___sys_sendmsg (net/socket.c:2670) 
[ 29.194046][ T362] ? __sys_sendmsg (net/socket.c:2700) 
[ 29.194370][ T362] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 29.194685][ T362] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 29.195062][ T362] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 29.195390][ T362] netif_set_mtu (net/core/dev.c:9652) 
[ 29.195694][ T362] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 29.196014][ T362] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 29.196247][ T362] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 29.196685][ T362] br_del_if (net/bridge/br_if.c:743) bridge 
[ 29.197024][ T362] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 29.197355][ T362] do_set_master (net/core/rtnetlink.c:2932) 
[ 29.197666][ T362] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 29.197977][ T362] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 29.198382][ T362] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 29.198695][ T362] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 29.198999][ T362] ? __kernel_text_address (kernel/extable.c:79) 
[ 29.199327][ T362] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 29.199635][ T362] ? __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) 
[ 29.199941][ T362] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 29.200340][ T362] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 29.200648][ T362] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 29.200950][ T362] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 29.201251][ T362] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 29.201568][ T362] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 29.201873][ T362] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 29.202174][ T362] ? __create_object (mm/kmemleak.c:771) 
[ 29.202497][ T362] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 29.202810][ T362] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 29.203111][ T362] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 29.203497][ T362] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 29.203808][ T362] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 29.204122][ T362] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 29.204434][ T362] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 29.204744][ T362] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 29.205047][ T362] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 29.205355][ T362] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 29.205660][ T362] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 29.205964][ T362] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 29.206271][ T362] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 29.206605][ T362] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 29.206926][ T362] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 29.207228][ T362] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 29.207541][ T362] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 29.207857][ T362] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 29.208158][ T362] ? 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) 
[ 29.208474][ T362] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 29.208783][ T362] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 29.209086][ T362] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 29.209401][ T362] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 29.209707][ T362] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 29.210011][ T362] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 29.210353][ T362] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 29.210664][ T362] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 29.210972][ T362] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 29.211370][ T362] ___sys_sendmsg (net/socket.c:2670) 
[ 29.211671][ T362] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 29.211974][ T362] ? __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) 
[ 29.212365][ T362] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 29.212670][ T362] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 29.212977][ T362] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 29.213290][ T362] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 29.213602][ T362] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 29.213905][ T362] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 29.214216][ T362] __sys_sendmsg (net/socket.c:2700) 
[ 29.214553][ T362] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 29.214929][ T362] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 29.215246][ T362] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 29.215565][ T362] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 29.215871][ T362] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   29.216247][  T362] RIP: 0033:0x7fae12dfd1e7
[ 29.216569][ T362] 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)
[   29.217660][  T362] RSP: 002b:00007ffc25094ae8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   29.218117][  T362] RAX: ffffffffffffffda RBX: 00007ffc25095210 RCX: 00007fae12dfd1e7
[   29.218590][  T362] RDX: 0000000000000000 RSI: 00007ffc25094b50 RDI: 0000000000000005
[   29.219045][  T362] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   29.219509][  T362] R10: 00007fae12cfaee8 R11: 0000000000000246 R12: 0000000000000003
[   29.219968][  T362] R13: 00000000686e73b1 R14: 0000000000499600 R15: 0000000000000000
| [   31.421992][  T364] ------------[ cut here ]------------
| [ 31.422318][ T364] WARNING: CPU: 0 PID: 364 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) 
| [   31.422931][  T364] Modules linked in: bridge stp llc vrf veth
| [   31.423965][  T364] Tainted: [W]=WARN
[   31.424191][  T364] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 31.425637][ T364] 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) 
[ 31.425961][ T364] 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
[   31.427100][  T364] RSP: 0018:ffffc90000876ef0 EFLAGS: 00010246
[   31.427491][  T364] RAX: 0000000000000000 RBX: ffff88801357a000 RCX: 0000000000000001
[   31.427948][  T364] RDX: 0000000000000000 RSI: ffffffffa789b939 RDI: ffffffffa70555e0
[   31.428423][  T364] RBP: ffffc90000876fe0 R08: 0000000000000000 R09: 0000000000000000
[   31.428884][  T364] R10: ffffc90000877010 R11: ffffffffa86a8918 R12: 1ffff9200010ede2
[   31.429362][  T364] R13: 00000000000005dc R14: ffffc90000877010 R15: ffff88801357af08
[   31.429814][  T364] FS:  00007f9166bd2800(0000) GS:ffff88808c8b7000(0000) knlGS:0000000000000000
[   31.430377][  T364] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.430767][  T364] CR2: 00000000004e5aa8 CR3: 000000000a86a006 CR4: 0000000000772ef0
[   31.431258][  T364] PKRU: 55555554
[   31.431500][  T364] Call Trace:
[   31.431728][  T364]  <TASK>
[ 31.431887][ T364] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 31.432206][ T364] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.432525][ T364] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 31.432829][ T364] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 31.433226][ T364] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 31.433542][ T364] netif_set_mtu (net/core/dev.c:9652) 
[ 31.433847][ T364] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 31.434175][ T364] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 31.434615][ T364] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 31.434847][ T364] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 31.435290][ T364] br_add_if (net/bridge/br_if.c:697) bridge 
[ 31.435660][ T364] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 31.435969][ T364] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 31.436291][ T364] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 31.436688][ T364] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 31.436989][ T364] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 31.437334][ T364] ? __kernel_text_address (kernel/extable.c:79) 
[ 31.437650][ T364] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.437958][ T364] ? __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) 
[ 31.438271][ T364] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 31.438659][ T364] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 31.438964][ T364] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 31.439279][ T364] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 31.439594][ T364] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 31.439898][ T364] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.440213][ T364] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 31.440541][ T364] ? __create_object (mm/kmemleak.c:771) 
[ 31.440849][ T364] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 31.441153][ T364] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 31.441476][ T364] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 31.441856][ T364] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 31.442165][ T364] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 31.442506][ T364] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 31.442812][ T364] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.443156][ T364] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.443499][ T364] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 31.443802][ T364] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 31.444108][ T364] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 31.444436][ T364] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 31.444743][ T364] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 31.445056][ T364] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.445386][ T364] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 31.445693][ T364] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 31.445998][ T364] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 31.446321][ T364] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 31.446639][ T364] ? 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) 
[ 31.446943][ T364] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 31.447257][ T364] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 31.447584][ T364] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.447893][ T364] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 31.448200][ T364] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 31.448526][ T364] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 31.448838][ T364] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 31.449142][ T364] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 31.449467][ T364] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 31.449884][ T364] ___sys_sendmsg (net/socket.c:2670) 
[ 31.450196][ T364] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 31.450526][ T364] ? __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) 
[ 31.450907][ T364] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 31.451214][ T364] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.451546][ T364] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.451863][ T364] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.452168][ T364] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 31.452479][ T364] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 31.452800][ T364] __sys_sendmsg (net/socket.c:2700) 
[ 31.453101][ T364] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 31.453486][ T364] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 31.453813][ T364] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 31.454119][ T364] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 31.454439][ T364] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   31.454826][  T364] RIP: 0033:0x7f9166d9f1e7
[ 31.455140][ T364] 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)
[   31.456262][  T364] RSP: 002b:00007ffecab0c2c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   31.456750][  T364] RAX: ffffffffffffffda RBX: 00007ffecab0c9f0 RCX: 00007f9166d9f1e7
[   31.457205][  T364] RDX: 0000000000000000 RSI: 00007ffecab0c330 RDI: 0000000000000005
[   31.457677][  T364] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   31.458134][  T364] R10: 0000000007ce2910 R11: 0000000000000246 R12: 0000000000000004
[   31.458607][  T364] R13: 00000000686e73b4 R14: 0000000000499600 R15: 0000000000000000
| [   52.929592][  T472] ------------[ cut here ]------------
| [ 52.929947][ T472] WARNING: CPU: 2 PID: 472 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) 
| [   52.931165][  T472] Modules linked in: bridge stp llc vrf veth
| [   52.932583][  T472] Tainted: [W]=WARN
[   52.932834][  T472] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 52.933238][ T472] 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) 
[ 52.933619][ T472] 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
[   52.934805][  T472] RSP: 0018:ffffc90000e06f70 EFLAGS: 00010246
[   52.935217][  T472] RAX: 0000000000000000 RBX: ffff88801357a000 RCX: 0000000000000001
[   52.935711][  T472] RDX: 0000000000000000 RSI: ffffffffa789b939 RDI: ffffffffa70555e0
[   52.936188][  T472] RBP: ffffc90000e07058 R08: 0000000000000000 R09: 0000000000000000
[   52.936679][  T472] R10: ffffc90000e07088 R11: ffffffffa7d79160 R12: 1ffff920001c0df2
[   52.937156][  T472] R13: 00000000000005dc R14: ffffc90000e07088 R15: ffff88801357af08
[   52.937660][  T472] FS:  00007f1e5ca91800(0000) GS:ffff88808c9b7000(0000) knlGS:0000000000000000
[   52.938210][  T472] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   52.938649][  T472] CR2: 00000000004e5aa8 CR3: 000000001354a001 CR4: 0000000000772ef0
[   52.939126][  T472] PKRU: 55555554
[   52.939401][  T472] Call Trace:
[   52.939646][  T472]  <TASK>
[ 52.939815][ T472] ? __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) 
[ 52.940230][ T472] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 52.940627][ T472] ? do_set_master (net/core/rtnetlink.c:2932) 
[ 52.940952][ T472] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 52.941271][ T472] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 52.941613][ T472] ? netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 52.941942][ T472] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 52.942263][ T472] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 52.942626][ T472] ? ___sys_sendmsg (net/socket.c:2670) 
[ 52.942943][ T472] ? __sys_sendmsg (net/socket.c:2700) 
[ 52.943254][ T472] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 52.943601][ T472] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 52.943998][ T472] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 52.944350][ T472] netif_set_mtu (net/core/dev.c:9652) 
[ 52.944677][ T472] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 52.945019][ T472] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 52.945265][ T472] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 52.945731][ T472] br_del_if (net/bridge/br_if.c:743) bridge 
[ 52.946082][ T472] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 52.946432][ T472] do_set_master (net/core/rtnetlink.c:2932) 
[ 52.946760][ T472] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 52.947081][ T472] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 52.947514][ T472] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 52.947833][ T472] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 52.948151][ T472] ? __kernel_text_address (kernel/extable.c:79) 
[ 52.948499][ T472] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 52.948821][ T472] ? __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) 
[ 52.949140][ T472] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 52.949563][ T472] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 52.949883][ T472] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 52.950204][ T472] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 52.950548][ T472] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 52.950868][ T472] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 52.951183][ T472] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 52.951516][ T472] ? __create_object (mm/kmemleak.c:771) 
[ 52.951843][ T472] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 52.952170][ T472] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 52.952517][ T472] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 52.952907][ T472] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 52.953232][ T472] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 52.953579][ T472] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 52.953899][ T472] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 52.954223][ T472] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 52.954573][ T472] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 52.954895][ T472] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 52.955216][ T472] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 52.955559][ T472] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 52.955879][ T472] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 52.956202][ T472] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 52.956550][ T472] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 52.956868][ T472] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 52.957189][ T472] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 52.957536][ T472] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 52.957852][ T472] ? 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) 
[ 52.958168][ T472] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 52.958521][ T472] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 52.958839][ T472] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 52.959162][ T472] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 52.959511][ T472] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 52.959829][ T472] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 52.960160][ T472] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 52.960517][ T472] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 52.960836][ T472] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 52.961265][ T472] ___sys_sendmsg (net/socket.c:2670) 
[ 52.961612][ T472] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 52.961940][ T472] ? __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) 
[ 52.962365][ T472] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 52.962688][ T472] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 52.963006][ T472] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 52.963353][ T472] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 52.963672][ T472] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 52.963994][ T472] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 52.964346][ T472] __sys_sendmsg (net/socket.c:2700) 
[ 52.964666][ T472] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 52.965053][ T472] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 52.965407][ T472] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 52.965725][ T472] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 52.966044][ T472] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   52.966501][  T472] RIP: 0033:0x7f1e5cc5e1e7
[ 52.966841][ T472] 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)
[   52.967970][  T472] RSP: 002b:00007ffd7c856208 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   52.968472][  T472] RAX: ffffffffffffffda RBX: 00007ffd7c856930 RCX: 00007f1e5cc5e1e7
[   52.968947][  T472] RDX: 0000000000000000 RSI: 00007ffd7c856270 RDI: 0000000000000005
[   52.969440][  T472] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   52.969911][  T472] R10: 00007f1e5cb5bee8 R11: 0000000000000246 R12: 0000000000000003
[   52.970434][  T472] R13: 00000000686e73c9 R14: 0000000000499600 R15: 0000000000000000
| [   55.294888][  T475] ------------[ cut here ]------------
| [ 55.295189][ T475] WARNING: CPU: 1 PID: 475 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) 
| [   55.295814][  T475] Modules linked in: bridge stp llc vrf veth
| [   55.296829][  T475] Tainted: [W]=WARN
[   55.297059][  T475] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 55.298854][ T475] 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) 
[ 55.299173][ T475] 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
[   55.300361][  T475] RSP: 0018:ffffc90000e36ef0 EFLAGS: 00010246
[   55.300794][  T475] RAX: 0000000000000000 RBX: ffff88801357a000 RCX: 0000000000000001
[   55.301254][  T475] RDX: 0000000000000000 RSI: ffffffffa789b939 RDI: ffffffffa70555e0
[   55.301722][  T475] RBP: ffffc90000e36fe0 R08: 0000000000000000 R09: 0000000000000000
[   55.302177][  T475] R10: ffffc90000e37010 R11: ffffffffa86a8918 R12: 1ffff920001c6de2
[   55.302636][  T475] R13: 00000000000005dc R14: ffffc90000e37010 R15: ffff88801357af08
[   55.303086][  T475] FS:  00007f1c2f254800(0000) GS:ffff88808c937000(0000) knlGS:0000000000000000
[   55.303628][  T475] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.304009][  T475] CR2: 00000000004e5aa8 CR3: 000000000a7ed006 CR4: 0000000000772ef0
[   55.304484][  T475] PKRU: 55555554
[   55.304713][  T475] Call Trace:
[   55.304939][  T475]  <TASK>
[ 55.305098][ T475] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 55.305413][ T475] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.305731][ T475] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 55.306033][ T475] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 55.306422][ T475] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 55.306730][ T475] netif_set_mtu (net/core/dev.c:9652) 
[ 55.307033][ T475] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 55.307354][ T475] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 55.307790][ T475] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 55.308019][ T475] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 55.308511][ T475] br_add_if (net/bridge/br_if.c:697) bridge 
[ 55.308867][ T475] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 55.309176][ T475] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 55.309492][ T475] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 55.309877][ T475] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 55.310185][ T475] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 55.310504][ T475] ? __kernel_text_address (kernel/extable.c:79) 
[ 55.310812][ T475] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.311119][ T475] ? __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) 
[ 55.311431][ T475] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 55.311808][ T475] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 55.312112][ T475] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 55.312438][ T475] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 55.312749][ T475] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 55.313054][ T475] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.313368][ T475] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 55.313670][ T475] ? __create_object (mm/kmemleak.c:771) 
[ 55.313977][ T475] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 55.314282][ T475] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 55.314595][ T475] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 55.314988][ T475] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 55.315318][ T475] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 55.315631][ T475] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 55.315934][ T475] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.316244][ T475] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.316566][ T475] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 55.316868][ T475] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 55.317173][ T475] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 55.317492][ T475] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 55.317800][ T475] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 55.318105][ T475] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.318421][ T475] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 55.318729][ T475] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 55.319032][ T475] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 55.319352][ T475] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 55.319660][ T475] ? 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) 
[ 55.319966][ T475] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 55.320281][ T475] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 55.320604][ T475] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.320934][ T475] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 55.321241][ T475] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 55.321553][ T475] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 55.321870][ T475] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 55.322178][ T475] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 55.322485][ T475] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 55.322879][ T475] ___sys_sendmsg (net/socket.c:2670) 
[ 55.323180][ T475] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 55.323491][ T475] ? __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) 
[ 55.323869][ T475] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 55.324182][ T475] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.324507][ T475] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.324820][ T475] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.325124][ T475] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 55.325435][ T475] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 55.325747][ T475] __sys_sendmsg (net/socket.c:2700) 
[ 55.326049][ T475] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 55.326441][ T475] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 55.326757][ T475] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 55.327063][ T475] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 55.327374][ T475] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   55.327751][  T475] RIP: 0033:0x7f1c2f4211e7
[ 55.328088][ T475] 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)
[   55.329195][  T475] RSP: 002b:00007ffe46bd5d58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   55.329671][  T475] RAX: ffffffffffffffda RBX: 00007ffe46bd6480 RCX: 00007f1c2f4211e7
[   55.330126][  T475] RDX: 0000000000000000 RSI: 00007ffe46bd5dc0 RDI: 0000000000000005
[   55.330594][  T475] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   55.331052][  T475] R10: 000000003d31c910 R11: 0000000000000246 R12: 0000000000000004
[   55.331515][  T475] R13: 00000000686e73cc R14: 0000000000499600 R15: 0000000000000000
| [   59.279066][  T517] ------------[ cut here ]------------
| [ 59.279417][ T517] WARNING: CPU: 2 PID: 517 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) 
| [   59.280039][  T517] Modules linked in: bridge stp llc vrf veth
| [   59.281207][  T517] Tainted: [W]=WARN
[   59.281466][  T517] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 59.281860][ T517] 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) 
[ 59.282188][ T517] 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
[   59.283816][  T517] RSP: 0018:ffffc90001006f70 EFLAGS: 00010246
[   59.284222][  T517] RAX: 0000000000000000 RBX: ffff88801357a000 RCX: 0000000000000001
[   59.284707][  T517] RDX: 0000000000000000 RSI: ffffffffa789b939 RDI: ffffffffa70555e0
[   59.285177][  T517] RBP: ffffc90001007058 R08: 0000000000000000 R09: 0000000000000000
[   59.285674][  T517] R10: ffffc90001007088 R11: ffffffffa7d79160 R12: 1ffff92000200df2
[   59.286163][  T517] R13: 00000000000005dc R14: ffffc90001007088 R15: ffff88801357af08
[   59.286676][  T517] FS:  00007fe856b63800(0000) GS:ffff88808c9b7000(0000) knlGS:0000000000000000
[   59.287228][  T517] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   59.287640][  T517] CR2: 00000000004e5aa8 CR3: 0000000013409005 CR4: 0000000000772ef0
[   59.288149][  T517] PKRU: 55555554
[   59.288405][  T517] Call Trace:
[   59.288653][  T517]  <TASK>
[ 59.288822][ T517] ? __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) 
[ 59.289219][ T517] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 59.289589][ T517] ? do_set_master (net/core/rtnetlink.c:2932) 
[ 59.289919][ T517] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 59.290272][ T517] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 59.290608][ T517] ? netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 59.290928][ T517] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 59.291248][ T517] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 59.291576][ T517] ? ___sys_sendmsg (net/socket.c:2670) 
[ 59.291899][ T517] ? __sys_sendmsg (net/socket.c:2700) 
[ 59.292216][ T517] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 59.292548][ T517] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 59.292939][ T517] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 59.293272][ T517] netif_set_mtu (net/core/dev.c:9652) 
[ 59.293600][ T517] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 59.293935][ T517] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 59.294177][ T517] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 59.294635][ T517] br_del_if (net/bridge/br_if.c:743) bridge 
[ 59.294987][ T517] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 59.295321][ T517] do_set_master (net/core/rtnetlink.c:2932) 
[ 59.295646][ T517] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 59.295970][ T517] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 59.296380][ T517] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 59.296701][ T517] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 59.297015][ T517] ? __kernel_text_address (kernel/extable.c:79) 
[ 59.297347][ T517] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 59.297668][ T517] ? __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) 
[ 59.297988][ T517] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 59.298390][ T517] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 59.298713][ T517] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 59.299025][ T517] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 59.299349][ T517] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 59.299666][ T517] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 59.299987][ T517] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 59.300326][ T517] ? __create_object (mm/kmemleak.c:771) 
[ 59.300651][ T517] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 59.300970][ T517] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 59.301291][ T517] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 59.301700][ T517] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 59.302035][ T517] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 59.302368][ T517] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 59.302684][ T517] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 59.303033][ T517] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 59.303357][ T517] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 59.303669][ T517] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 59.303987][ T517] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 59.304317][ T517] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 59.304636][ T517] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 59.304956][ T517] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 59.305276][ T517] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 59.305616][ T517] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 59.305935][ T517] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 59.306263][ T517] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 59.306595][ T517] ? 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) 
[ 59.306915][ T517] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 59.307235][ T517] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 59.307562][ T517] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 59.307883][ T517] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 59.308208][ T517] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 59.308539][ T517] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 59.308872][ T517] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 59.309193][ T517] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 59.309517][ T517] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 59.309920][ T517] ___sys_sendmsg (net/socket.c:2670) 
[ 59.310262][ T517] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 59.310589][ T517] ? __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) 
[ 59.310981][ T517] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 59.311314][ T517] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 59.311637][ T517] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 59.311958][ T517] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 59.312274][ T517] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 59.312597][ T517] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 59.312923][ T517] __sys_sendmsg (net/socket.c:2700) 
[ 59.313237][ T517] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 59.313645][ T517] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 59.313974][ T517] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 59.314294][ T517] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 59.314621][ T517] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   59.315010][  T517] RIP: 0033:0x7fe856d301e7
[ 59.315420][ T517] 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)
[   59.316546][  T517] RSP: 002b:00007ffc8fd07d68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   59.317016][  T517] RAX: ffffffffffffffda RBX: 00007ffc8fd08490 RCX: 00007fe856d301e7
[   59.317494][  T517] RDX: 0000000000000000 RSI: 00007ffc8fd07dd0 RDI: 0000000000000005
[   59.317982][  T517] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   59.318466][  T517] R10: 00007fe856c2dee8 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