======================================
| [  347.228770][ T2902] br1: port 1(vethhv-11) entered forwarding state
| [  347.230171][ T2902] ------------[ cut here ]------------
| [ 347.230501][ T2902] WARNING: CPU: 2 PID: 2902 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) 
| [  347.231123][ T2902] Modules linked in: vxlan
[  347.232198][ T2902] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 347.232590][ T2902] 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) 
[ 347.232998][ T2902] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  347.234109][ T2902] RSP: 0018:ffffc90000c16ef0 EFLAGS: 00010246
[  347.234506][ T2902] RAX: 0000000000000000 RBX: ffff888019d5a000 RCX: 0000000000000001
[  347.234978][ T2902] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  347.235441][ T2902] RBP: ffffc90000c16fd8 R08: 0000000000000000 R09: 0000000000000000
[  347.235939][ T2902] R10: ffffc90000c17008 R11: ffffffffa478d1e0 R12: 1ffff92000182de2
[  347.236396][ T2902] R13: 00000000000005dc R14: ffffc90000c17008 R15: ffff888019d5af48
[  347.236863][ T2902] FS:  00007f1581a1f800(0000) GS:ffff8880c6c99000(0000) knlGS:0000000000000000
[  347.237395][ T2902] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  347.237793][ T2902] CR2: 00000000004e6890 CR3: 0000000008b59006 CR4: 0000000000772ef0
[  347.238257][ T2902] PKRU: 55555554
[  347.238494][ T2902] Call Trace:
[  347.238729][ T2902]  <TASK>
[ 347.238916][ T2902] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 347.239233][ T2902] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 347.239556][ T2902] netif_set_mtu (net/core/dev.c:9652) 
[ 347.239890][ T2902] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 347.240221][ T2902] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 347.240457][ T2902] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 347.240784][ T2902] br_add_if (net/bridge/br_if.c:697) 
[ 347.241031][ T2902] do_set_master (net/core/rtnetlink.c:2948) 
[ 347.241338][ T2902] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 347.241650][ T2902] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 347.241971][ T2902] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 347.242356][ T2902] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 347.242672][ T2902] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 347.242988][ T2902] ? __kernel_text_address (kernel/extable.c:79) 
[ 347.243298][ T2902] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 347.243623][ T2902] ? __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) 
[ 347.243942][ T2902] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 347.244320][ T2902] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 347.244637][ T2902] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 347.244960][ T2902] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 347.245271][ T2902] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 347.245588][ T2902] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 347.245908][ T2902] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 347.246212][ T2902] ? __create_object (mm/kmemleak.c:771) 
[ 347.246528][ T2902] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 347.246849][ T2902] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 347.247180][ T2902] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 347.247557][ T2902] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 347.247880][ T2902] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 347.248193][ T2902] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 347.248506][ T2902] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 347.248830][ T2902] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 347.249140][ T2902] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 347.249444][ T2902] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 347.249771][ T2902] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 347.250081][ T2902] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 347.250391][ T2902] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 347.250702][ T2902] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 347.251025][ T2902] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 347.251333][ T2902] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 347.251639][ T2902] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 347.251971][ T2902] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 347.252280][ T2902] ? 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) 
[ 347.252589][ T2902] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 347.252907][ T2902] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 347.253211][ T2902] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 347.253530][ T2902] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 347.253849][ T2902] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 347.254159][ T2902] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 347.254485][ T2902] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 347.254807][ T2902] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 347.255117][ T2902] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 347.255505][ T2902] ___sys_sendmsg (net/socket.c:2670) 
[ 347.255818][ T2902] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 347.256126][ T2902] ? __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) 
[ 347.256513][ T2902] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 347.256840][ T2902] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 347.257150][ T2902] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 347.257462][ T2902] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 347.257775][ T2902] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 347.258082][ T2902] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 347.258399][ T2902] __sys_sendmsg (net/socket.c:2700) 
[ 347.258702][ T2902] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 347.259092][ T2902] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 347.259412][ T2902] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 347.259717][ T2902] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 347.260033][ T2902] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  347.260413][ T2902] RIP: 0033:0x7f1581bec1e7
[ 347.260738][ T2902] 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)
[  347.261813][ T2902] RSP: 002b:00007ffdca2bec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  347.262272][ T2902] RAX: ffffffffffffffda RBX: 00007ffdca2bf3b0 RCX: 00007f1581bec1e7
[  347.262731][ T2902] RDX: 0000000000000000 RSI: 00007ffdca2bece0 RDI: 0000000000000005
[  347.263209][ T2902] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  347.263680][ T2902] R10: 000000000229a910 R11: 0000000000000246 R12: 0000000000000003
[  347.264142][ T2902] R13: 00000000686e45a5 R14: 0000000000499600 R15: 0000000000000000
| [  348.817342][ T2928] ------------[ cut here ]------------
| [ 348.817686][ T2928] WARNING: CPU: 0 PID: 2928 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) 
| [  348.818302][ T2928] Modules linked in: vxlan
| [  348.819262][ T2928] Tainted: [W]=WARN
[  348.819509][ T2928] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 348.819917][ T2928] 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) 
[ 348.820233][ T2928] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  348.821346][ T2928] RSP: 0018:ffffc90000c96ef0 EFLAGS: 00010246
[  348.821742][ T2928] RAX: 0000000000000000 RBX: ffff888019d5a000 RCX: 0000000000000001
[  348.822208][ T2928] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  348.822669][ T2928] RBP: ffffc90000c96fd8 R08: 0000000000000000 R09: 0000000000000000
[  348.823141][ T2928] R10: ffffc90000c97008 R11: ffffffffa50ceab8 R12: 1ffff92000192de2
[  348.823630][ T2928] R13: 00000000000005aa R14: ffffc90000c97008 R15: ffff888019d5af48
[  348.824102][ T2928] FS:  00007f4b8facd800(0000) GS:ffff8880c6b99000(0000) knlGS:0000000000000000
[  348.824654][ T2928] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  348.825053][ T2928] CR2: 00000000004e6890 CR3: 0000000019428004 CR4: 0000000000772ef0
[  348.825523][ T2928] PKRU: 55555554
[  348.825769][ T2928] Call Trace:
[  348.826002][ T2928]  <TASK>
[ 348.826162][ T2928] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 348.826478][ T2928] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 348.826779][ T2928] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 348.827153][ T2928] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 348.827452][ T2928] netif_set_mtu (net/core/dev.c:9652) 
[ 348.827756][ T2928] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 348.828075][ T2928] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 348.828465][ T2928] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 348.828701][ T2928] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 348.829022][ T2928] br_add_if (net/bridge/br_if.c:697) 
[ 348.829257][ T2928] do_set_master (net/core/rtnetlink.c:2948) 
[ 348.829569][ T2928] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 348.829891][ T2928] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 348.830213][ T2928] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 348.830604][ T2928] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 348.830920][ T2928] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 348.831229][ T2928] ? __kernel_text_address (kernel/extable.c:79) 
[ 348.831539][ T2928] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 348.831853][ T2928] ? __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) 
[ 348.832161][ T2928] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 348.832557][ T2928] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 348.832859][ T2928] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 348.833168][ T2928] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 348.833493][ T2928] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 348.833800][ T2928] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 348.834097][ T2928] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 348.834399][ T2928] ? __create_object (mm/kmemleak.c:771) 
[ 348.834800][ T2928] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 348.835112][ T2928] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 348.835409][ T2928] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 348.835780][ T2928] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 348.836083][ T2928] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 348.836385][ T2928] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 348.836684][ T2928] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 348.836990][ T2928] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 348.837290][ T2928] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 348.837581][ T2928] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 348.837884][ T2928] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 348.838175][ T2928] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 348.838476][ T2928] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 348.838782][ T2928] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 348.839135][ T2928] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 348.839445][ T2928] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 348.839756][ T2928] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 348.840077][ T2928] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 348.840384][ T2928] ? 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) 
[ 348.840693][ T2928] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 348.841015][ T2928] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 348.841319][ T2928] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 348.841635][ T2928] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 348.841959][ T2928] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 348.842271][ T2928] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 348.842589][ T2928] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 348.842910][ T2928] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 348.843222][ T2928] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 348.843629][ T2928] ___sys_sendmsg (net/socket.c:2670) 
[ 348.843931][ T2928] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 348.844242][ T2928] ? __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) 
[ 348.844628][ T2928] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 348.844941][ T2928] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 348.845246][ T2928] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 348.845560][ T2928] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 348.845878][ T2928] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 348.846186][ T2928] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 348.846517][ T2928] __sys_sendmsg (net/socket.c:2700) 
[ 348.846835][ T2928] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 348.847219][ T2928] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 348.847555][ T2928] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 348.847874][ T2928] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 348.848184][ T2928] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  348.848570][ T2928] RIP: 0033:0x7f4b8fc9a1e7
[ 348.848903][ T2928] 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)
[  348.850014][ T2928] RSP: 002b:00007fffc0294f58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  348.850478][ T2928] RAX: ffffffffffffffda RBX: 00007fffc0295690 RCX: 00007f4b8fc9a1e7
[  348.850956][ T2928] RDX: 0000000000000000 RSI: 00007fffc0294fc0 RDI: 0000000000000005
[  348.851419][ T2928] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  348.851891][ T2928] R10: 000000003d60c910 R11: 0000000000000246 R12: 0000000000000003
[  348.852355][ T2928] R13: 00000000686e45a7 R14: 0000000000499600 R15: 0000000000000000
| [  352.626148][ T2979] ------------[ cut here ]------------
| [ 352.626463][ T2979] WARNING: CPU: 3 PID: 2979 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) 
| [  352.627093][ T2979] Modules linked in: vxlan
| [  352.628061][ T2979] Tainted: [W]=WARN
[  352.628321][ T2979] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 352.628718][ T2979] 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) 
[ 352.629056][ T2979] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  352.630179][ T2979] RSP: 0018:ffffc90000e16ef0 EFLAGS: 00010246
[  352.630567][ T2979] RAX: 0000000000000000 RBX: ffff888018762000 RCX: 0000000000000001
[  352.631024][ T2979] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  352.631477][ T2979] RBP: ffffc90000e16fd8 R08: 0000000000000000 R09: 0000000000000000
[  352.631976][ T2979] R10: ffffc90000e17008 R11: ffffffffa478d1e0 R12: 1ffff920001c2de2
[  352.632437][ T2979] R13: 00000000000005dc R14: ffffc90000e17008 R15: ffff888018762f48
[  352.632896][ T2979] FS:  00007f8ad7745800(0000) GS:ffff8880c6d19000(0000) knlGS:0000000000000000
[  352.633450][ T2979] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  352.633830][ T2979] CR2: 00000000004e6898 CR3: 00000000189a2004 CR4: 0000000000772ef0
[  352.634280][ T2979] PKRU: 55555554
[  352.634519][ T2979] Call Trace:
[  352.634756][ T2979]  <TASK>
[ 352.634915][ T2979] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 352.635218][ T2979] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 352.635556][ T2979] netif_set_mtu (net/core/dev.c:9652) 
[ 352.635894][ T2979] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 352.636212][ T2979] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 352.636435][ T2979] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 352.636783][ T2979] br_add_if (net/bridge/br_if.c:697) 
[ 352.637036][ T2979] do_set_master (net/core/rtnetlink.c:2948) 
[ 352.637343][ T2979] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 352.637711][ T2979] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 352.638063][ T2979] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 352.638497][ T2979] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 352.638854][ T2979] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 352.639188][ T2979] ? __kernel_text_address (kernel/extable.c:79) 
[ 352.639526][ T2979] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 352.639870][ T2979] ? __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) 
[ 352.640209][ T2979] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 352.640623][ T2979] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 352.640969][ T2979] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 352.641308][ T2979] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 352.641643][ T2979] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 352.641984][ T2979] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 352.642322][ T2979] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 352.642651][ T2979] ? __create_object (mm/kmemleak.c:771) 
[ 352.643002][ T2979] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 352.643338][ T2979] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 352.643741][ T2979] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 352.644171][ T2979] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 352.644516][ T2979] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 352.644868][ T2979] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 352.645203][ T2979] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 352.645542][ T2979] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 352.645886][ T2979] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 352.646219][ T2979] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 352.646562][ T2979] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 352.646903][ T2979] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 352.647240][ T2979] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 352.647590][ T2979] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 352.647940][ T2979] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 352.648276][ T2979] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 352.648612][ T2979] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 352.648986][ T2979] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 352.649321][ T2979] ? 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) 
[ 352.649655][ T2979] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 352.650000][ T2979] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 352.650333][ T2979] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 352.650674][ T2979] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 352.651024][ T2979] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 352.651367][ T2979] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 352.651709][ T2979] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 352.652055][ T2979] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 352.652389][ T2979] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 352.652822][ T2979] ___sys_sendmsg (net/socket.c:2670) 
[ 352.653153][ T2979] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 352.653505][ T2979] ? __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) 
[ 352.653944][ T2979] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 352.654288][ T2979] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 352.654627][ T2979] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 352.654978][ T2979] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 352.655313][ T2979] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 352.655646][ T2979] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 352.655995][ T2979] __sys_sendmsg (net/socket.c:2700) 
[ 352.656329][ T2979] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 352.656759][ T2979] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 352.657107][ T2979] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 352.657444][ T2979] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 352.657792][ T2979] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  352.658204][ T2979] RIP: 0033:0x7f8ad79121e7
[ 352.658546][ T2979] 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)
[  352.659756][ T2979] RSP: 002b:00007ffe224e0ee8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  352.660259][ T2979] RAX: ffffffffffffffda RBX: 00007ffe224e1620 RCX: 00007f8ad79121e7
[  352.660772][ T2979] RDX: 0000000000000000 RSI: 00007ffe224e0f50 RDI: 0000000000000005
[  352.661282][ T2979] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  352.661789][ T2979] R10: 000000001a39b910 R11: 0000000000000246 R12: 0000000000000003
[  352.662291][ T2979] R13: 00000000686e45ab R14: 0000000000499600 R15: 0000000000000000
| [  354.315312][ T3005] ------------[ cut here ]------------
| [ 354.315622][ T3005] WARNING: CPU: 0 PID: 3005 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) 
| [  354.316734][ T3005] Modules linked in: vxlan
| [  354.317655][ T3005] Tainted: [W]=WARN
[  354.317887][ T3005] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 354.318255][ T3005] 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) 
[ 354.318564][ T3005] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  354.319630][ T3005] RSP: 0018:ffffc90000ec6ef0 EFLAGS: 00010246
[  354.320008][ T3005] RAX: 0000000000000000 RBX: ffff888018762000 RCX: 0000000000000001
[  354.320449][ T3005] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  354.320921][ T3005] RBP: ffffc90000ec6fd8 R08: 0000000000000000 R09: 0000000000000000
[  354.321360][ T3005] R10: ffffc90000ec7008 R11: ffffffffa50ceab8 R12: 1ffff920001d8de2
[  354.321809][ T3005] R13: 0000000000000596 R14: ffffc90000ec7008 R15: ffff888018762f48
[  354.322724][ T3005] FS:  00007fb80826d800(0000) GS:ffff8880c6b99000(0000) knlGS:0000000000000000
[  354.323276][ T3005] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  354.323657][ T3005] CR2: 00000000004e6898 CR3: 0000000019457001 CR4: 0000000000772ef0
[  354.324109][ T3005] PKRU: 55555554
[  354.324329][ T3005] Call Trace:
[  354.324548][ T3005]  <TASK>
[ 354.324700][ T3005] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 354.325017][ T3005] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 354.325312][ T3005] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 354.325681][ T3005] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 354.325987][ T3005] netif_set_mtu (net/core/dev.c:9652) 
[ 354.326279][ T3005] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 354.326582][ T3005] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 354.326960][ T3005] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 354.327190][ T3005] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 354.327487][ T3005] br_add_if (net/bridge/br_if.c:697) 
[ 354.327719][ T3005] do_set_master (net/core/rtnetlink.c:2948) 
[ 354.328020][ T3005] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 354.328316][ T3005] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 354.328614][ T3005] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 354.329009][ T3005] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 354.329334][ T3005] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 354.329628][ T3005] ? __kernel_text_address (kernel/extable.c:79) 
[ 354.329954][ T3005] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 354.330253][ T3005] ? __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) 
[ 354.330549][ T3005] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 354.330921][ T3005] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 354.331218][ T3005] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 354.331509][ T3005] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 354.331817][ T3005] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 354.332116][ T3005] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 354.332419][ T3005] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 354.332710][ T3005] ? __create_object (mm/kmemleak.c:771) 
[ 354.333018][ T3005] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 354.333317][ T3005] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 354.333656][ T3005] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 354.334040][ T3005] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 354.334361][ T3005] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 354.334661][ T3005] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 354.334963][ T3005] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 354.335264][ T3005] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 354.335560][ T3005] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 354.335860][ T3005] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 354.336157][ T3005] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 354.336457][ T3005] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 354.336778][ T3005] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 354.337078][ T3005] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 354.337376][ T3005] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 354.337671][ T3005] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 354.337979][ T3005] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 354.338316][ T3005] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 354.338613][ T3005] ? 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) 
[ 354.338916][ T3005] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 354.339214][ T3005] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 354.339509][ T3005] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 354.339819][ T3005] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 354.340118][ T3005] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 354.340414][ T3005] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 354.340737][ T3005] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 354.341043][ T3005] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 354.341335][ T3005] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 354.341716][ T3005] ___sys_sendmsg (net/socket.c:2670) 
[ 354.342019][ T3005] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 354.342338][ T3005] ? __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) 
[ 354.342734][ T3005] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 354.343047][ T3005] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 354.343346][ T3005] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 354.343659][ T3005] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 354.343967][ T3005] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 354.344285][ T3005] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 354.344591][ T3005] __sys_sendmsg (net/socket.c:2700) 
[ 354.344893][ T3005] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 354.345259][ T3005] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 354.345572][ T3005] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 354.345882][ T3005] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 354.346178][ T3005] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  354.346544][ T3005] RIP: 0033:0x7fb80843a1e7
[ 354.346856][ T3005] 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)
[  354.347924][ T3005] RSP: 002b:00007fff5877c098 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  354.348368][ T3005] RAX: ffffffffffffffda RBX: 00007fff5877c7d0 RCX: 00007fb80843a1e7
[  354.348847][ T3005] RDX: 0000000000000000 RSI: 00007fff5877c100 RDI: 0000000000000005
[  354.349287][ T3005] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  354.349728][ T3005] R10: 0000000005e4c910 R11: 0000000000000246 R12: 0000000000000003
[  354.350185][ T3005] R13: 00000000686e45ac R14: 0000000000499600 R15: 0000000000000000
| [  358.095114][ T3057] ------------[ cut here ]------------
| [ 358.095445][ T3057] WARNING: CPU: 3 PID: 3057 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) 
| [  358.096094][ T3057] Modules linked in: vxlan
| [  358.097081][ T3057] Tainted: [W]=WARN
[  358.097328][ T3057] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 358.097723][ T3057] 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) 
[ 358.098059][ T3057] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  358.099206][ T3057] RSP: 0018:ffffc90000e16ef0 EFLAGS: 00010246
[  358.099604][ T3057] RAX: 0000000000000000 RBX: ffff8880196ca000 RCX: 0000000000000001
[  358.100084][ T3057] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  358.100556][ T3057] RBP: ffffc90000e16fd8 R08: 0000000000000000 R09: 0000000000000000
[  358.101051][ T3057] R10: ffffc90000e17008 R11: ffffffffa478d1e0 R12: 1ffff920001c2de2
[  358.101526][ T3057] R13: 00000000000005dc R14: ffffc90000e17008 R15: ffff8880196caf48
[  358.102018][ T3057] FS:  00007f1325e79800(0000) GS:ffff8880c6d19000(0000) knlGS:0000000000000000
[  358.102567][ T3057] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  358.102973][ T3057] CR2: 00000000004e6890 CR3: 00000000185fa004 CR4: 0000000000772ef0
[  358.103467][ T3057] PKRU: 55555554
[  358.103721][ T3057] Call Trace:
[  358.103972][ T3057]  <TASK>
[ 358.104139][ T3057] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 358.104454][ T3057] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 358.104812][ T3057] netif_set_mtu (net/core/dev.c:9652) 
[ 358.105139][ T3057] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 358.105480][ T3057] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 358.105719][ T3057] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 358.106059][ T3057] br_add_if (net/bridge/br_if.c:697) 
[ 358.106313][ T3057] do_set_master (net/core/rtnetlink.c:2948) 
[ 358.106640][ T3057] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 358.106968][ T3057] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 358.107288][ T3057] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 358.107694][ T3057] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 358.108031][ T3057] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 358.108353][ T3057] ? __kernel_text_address (kernel/extable.c:79) 
[ 358.108670][ T3057] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 358.109005][ T3057] ? __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) 
[ 358.109327][ T3057] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 358.109724][ T3057] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 358.110053][ T3057] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 358.110381][ T3057] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 358.110700][ T3057] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 358.111035][ T3057] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 358.111360][ T3057] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 358.111683][ T3057] ? __create_object (mm/kmemleak.c:771) 
[ 358.112017][ T3057] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 358.112341][ T3057] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 358.112664][ T3057] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 358.113073][ T3057] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 358.113407][ T3057] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 358.113738][ T3057] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 358.114065][ T3057] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 358.114386][ T3057] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 358.114706][ T3057] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 358.115029][ T3057] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 358.115349][ T3057] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 358.115660][ T3057] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 358.115987][ T3057] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 358.116306][ T3057] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 358.116622][ T3057] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 358.116945][ T3057] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 358.117296][ T3057] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 358.117646][ T3057] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 358.117973][ T3057] ? 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) 
[ 358.118290][ T3057] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 358.118613][ T3057] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 358.118934][ T3057] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 358.119265][ T3057] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 358.119586][ T3057] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 358.119929][ T3057] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 358.120251][ T3057] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 358.120566][ T3057] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 358.120891][ T3057] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 358.121294][ T3057] ___sys_sendmsg (net/socket.c:2670) 
[ 358.121626][ T3057] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 358.121959][ T3057] ? __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) 
[ 358.122366][ T3057] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 358.122683][ T3057] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 358.123025][ T3057] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 358.123353][ T3057] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 358.123679][ T3057] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 358.124011][ T3057] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 358.124341][ T3057] __sys_sendmsg (net/socket.c:2700) 
[ 358.124657][ T3057] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 358.125070][ T3057] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 358.125415][ T3057] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 358.125742][ T3057] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 358.126079][ T3057] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  358.126479][ T3057] RIP: 0033:0x7f13260461e7
[ 358.126821][ T3057] 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)
[  358.127994][ T3057] RSP: 002b:00007ffdebd89338 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  358.128481][ T3057] RAX: ffffffffffffffda RBX: 00007ffdebd89a70 RCX: 00007f13260461e7
[  358.128968][ T3057] RDX: 0000000000000000 RSI: 00007ffdebd893a0 RDI: 0000000000000005
[  358.129466][ T3057] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  358.129960][ T3057] R10: 000000003902a910 R11: 0000000000000246 R12: 0000000000000003
[  358.130448][ T3057] R13: 00000000686e45b0 R14: 0000000000499600 R15: 0000000000000000
| [  359.745293][ T3083] ------------[ cut here ]------------
| [ 359.745624][ T3083] WARNING: CPU: 3 PID: 3083 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) 
| [  359.746264][ T3083] Modules linked in: vxlan
| [  359.747238][ T3083] Tainted: [W]=WARN
[  359.747480][ T3083] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 359.747897][ T3083] 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) 
[ 359.748233][ T3083] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  359.749379][ T3083] RSP: 0018:ffffc900010a6ef0 EFLAGS: 00010246
[  359.749785][ T3083] RAX: 0000000000000000 RBX: ffff8880196ca000 RCX: 0000000000000001
[  359.750256][ T3083] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  359.750735][ T3083] RBP: ffffc900010a6fd8 R08: 0000000000000000 R09: 0000000000000000
[  359.751218][ T3083] R10: ffffc900010a7008 R11: ffffffffa50ceab8 R12: 1ffff92000214de2
[  359.751712][ T3083] R13: 00000000000005aa R14: ffffc900010a7008 R15: ffff8880196caf48
[  359.752221][ T3083] FS:  00007ff9e59f4800(0000) GS:ffff8880c6d19000(0000) knlGS:0000000000000000
[  359.752822][ T3083] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  359.753231][ T3083] CR2: 00000000004e6890 CR3: 0000000018ba2004 CR4: 0000000000772ef0
[  359.753768][ T3083] PKRU: 55555554
[  359.754009][ T3083] Call Trace:
[  359.754249][ T3083]  <TASK>
[ 359.754415][ T3083] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 359.754761][ T3083] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 359.755086][ T3083] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 359.755480][ T3083] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 359.755810][ T3083] netif_set_mtu (net/core/dev.c:9652) 
[ 359.756130][ T3083] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 359.756457][ T3083] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 359.756871][ T3083] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 359.757123][ T3083] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 359.757465][ T3083] br_add_if (net/bridge/br_if.c:697) 
[ 359.757717][ T3083] do_set_master (net/core/rtnetlink.c:2948) 
[ 359.758058][ T3083] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 359.758402][ T3083] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 359.758730][ T3083] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 359.759156][ T3083] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 359.759486][ T3083] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 359.759814][ T3083] ? __kernel_text_address (kernel/extable.c:79) 
[ 359.760134][ T3083] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 359.760454][ T3083] ? __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) 
[ 359.760782][ T3083] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 359.761177][ T3083] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 359.761507][ T3083] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 359.761837][ T3083] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 359.762159][ T3083] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 359.762475][ T3083] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 359.762801][ T3083] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 359.763114][ T3083] ? __create_object (mm/kmemleak.c:771) 
[ 359.763444][ T3083] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 359.763774][ T3083] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 359.764092][ T3083] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 359.764508][ T3083] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 359.764845][ T3083] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 359.765166][ T3083] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 359.765480][ T3083] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 359.765827][ T3083] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 359.766146][ T3083] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 359.766467][ T3083] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 359.766796][ T3083] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 359.767118][ T3083] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 359.767450][ T3083] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 359.767785][ T3083] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 359.768105][ T3083] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 359.768420][ T3083] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 359.768774][ T3083] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 359.769105][ T3083] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 359.769444][ T3083] ? 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) 
[ 359.769776][ T3083] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 359.770103][ T3083] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 359.770431][ T3083] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 359.770737][ T3083] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 359.771060][ T3083] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 359.771363][ T3083] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 359.771692][ T3083] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 359.772024][ T3083] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 359.772333][ T3083] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 359.772726][ T3083] ___sys_sendmsg (net/socket.c:2670) 
[ 359.773037][ T3083] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 359.773336][ T3083] ? __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) 
[ 359.773729][ T3083] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 359.774052][ T3083] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 359.774359][ T3083] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 359.774666][ T3083] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 359.774990][ T3083] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 359.775296][ T3083] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 359.775617][ T3083] __sys_sendmsg (net/socket.c:2700) 
[ 359.775947][ T3083] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 359.776344][ T3083] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 359.776680][ T3083] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 359.777004][ T3083] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 359.777319][ T3083] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  359.777707][ T3083] RIP: 0033:0x7ff9e5bc11e7
[ 359.778059][ T3083] 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)
[  359.779198][ T3083] RSP: 002b:00007fff69c8f9f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  359.779676][ T3083] RAX: ffffffffffffffda RBX: 00007fff69c90130 RCX: 00007ff9e5bc11e7
[  359.780150][ T3083] RDX: 0000000000000000 RSI: 00007fff69c8fa60 RDI: 0000000000000005
[  359.780606][ T3083] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  359.781094][ T3083] R10: 000000000e1ba910 R11: 0000000000000246 R12: 0000000000000003
[  359.781544][ T3083] R13: 00000000686e45b2 R14: 0000000000499600 R15: 0000000000000000
| [  363.558310][ T3134] ------------[ cut here ]------------
| [ 363.558688][ T3134] WARNING: CPU: 2 PID: 3134 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) 
| [  363.559363][ T3134] Modules linked in: vxlan
| [  363.560414][ T3134] Tainted: [W]=WARN
[  363.560678][ T3134] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 363.561114][ T3134] 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) 
[ 363.561463][ T3134] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  363.562648][ T3134] RSP: 0018:ffffc90001156ef0 EFLAGS: 00010246
[  363.563087][ T3134] RAX: 0000000000000000 RBX: ffff88801a352000 RCX: 0000000000000001
[  363.563606][ T3134] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  363.564122][ T3134] RBP: ffffc90001156fd8 R08: 0000000000000000 R09: 0000000000000000
[  363.564626][ T3134] R10: ffffc90001157008 R11: ffffffffa478d1e0 R12: 1ffff9200022ade2
[  363.565134][ T3134] R13: 00000000000005dc R14: ffffc90001157008 R15: ffff88801a352f48
[  363.565636][ T3134] FS:  00007f7688023800(0000) GS:ffff8880c6c99000(0000) knlGS:0000000000000000
[  363.566235][ T3134] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  363.566659][ T3134] CR2: 00000000004e6898 CR3: 00000000180d7003 CR4: 0000000000772ef0
[  363.567175][ T3134] PKRU: 55555554
[  363.567432][ T3134] Call Trace:
[  363.567688][ T3134]  <TASK>
[ 363.567877][ T3134] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 363.568221][ T3134] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 363.568581][ T3134] netif_set_mtu (net/core/dev.c:9652) 
[ 363.568931][ T3134] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 363.569285][ T3134] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 363.569552][ T3134] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 363.569905][ T3134] br_add_if (net/bridge/br_if.c:697) 
[ 363.570180][ T3134] do_set_master (net/core/rtnetlink.c:2948) 
[ 363.570517][ T3134] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 363.570876][ T3134] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 363.571219][ T3134] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 363.571642][ T3134] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 363.571988][ T3134] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 363.572324][ T3134] ? __kernel_text_address (kernel/extable.c:79) 
[ 363.572660][ T3134] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 363.573013][ T3134] ? __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) 
[ 363.573362][ T3134] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 363.573805][ T3134] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 363.574148][ T3134] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 363.574485][ T3134] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 363.574835][ T3134] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 363.575181][ T3134] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 363.575521][ T3134] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 363.575886][ T3134] ? __create_object (mm/kmemleak.c:771) 
[ 363.576234][ T3134] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 363.576571][ T3134] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 363.576938][ T3134] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 363.577364][ T3134] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 363.577711][ T3134] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 363.578068][ T3134] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 363.578406][ T3134] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 363.578771][ T3134] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 363.579115][ T3134] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 363.579451][ T3134] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 363.579807][ T3134] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 363.580150][ T3134] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 363.580487][ T3134] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 363.580840][ T3134] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 363.581185][ T3134] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 363.581532][ T3134] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 363.581890][ T3134] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 363.582240][ T3134] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 363.582581][ T3134] ? 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) 
[ 363.582931][ T3134] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 363.583275][ T3134] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 363.583624][ T3134] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 363.583993][ T3134] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 363.584340][ T3134] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 363.584682][ T3134] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 363.585040][ T3134] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 363.585383][ T3134] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 363.585721][ T3134] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 363.586166][ T3134] ___sys_sendmsg (net/socket.c:2670) 
[ 363.586511][ T3134] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 363.586864][ T3134] ? __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) 
[ 363.587290][ T3134] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 363.587636][ T3134] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 363.587993][ T3134] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 363.588338][ T3134] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 363.588677][ T3134] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 363.589033][ T3134] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 363.589379][ T3134] __sys_sendmsg (net/socket.c:2700) 
[ 363.589717][ T3134] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 363.590154][ T3134] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 363.590506][ T3134] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 363.590856][ T3134] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 363.591200][ T3134] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  363.591620][ T3134] RIP: 0033:0x7f76881f01e7
[ 363.591986][ T3134] 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)
[  363.593165][ T3134] RSP: 002b:00007ffd963ecec8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  363.593678][ T3134] RAX: ffffffffffffffda RBX: 00007ffd963ed600 RCX: 00007f76881f01e7
[  363.594194][ T3134] RDX: 0000000000000000 RSI: 00007ffd963ecf30 RDI: 0000000000000005
[  363.594696][ T3134] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  363.595197][ T3134] R10: 0000000034354910 R11: 0000000000000246 R12: 0000000000000003
[  363.595698][ T3134] R13: 00000000686e45b5 R14: 0000000000499600 R15: 0000000000000000
| [  365.273003][ T3160] ------------[ cut here ]------------
| [ 365.273363][ T3160] WARNING: CPU: 2 PID: 3160 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) 
| [  365.274021][ T3160] Modules linked in: vxlan
| [  365.275024][ T3160] Tainted: [W]=WARN
[  365.275312][ T3160] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 365.275729][ T3160] 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) 
[ 365.276089][ T3160] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  365.277250][ T3160] RSP: 0018:ffffc90001296ef0 EFLAGS: 00010246
[  365.277682][ T3160] RAX: 0000000000000000 RBX: ffff88801a352000 RCX: 0000000000000001
[  365.278189][ T3160] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  365.278682][ T3160] RBP: ffffc90001296fd8 R08: 0000000000000000 R09: 0000000000000000
[  365.279191][ T3160] R10: ffffc90001297008 R11: ffffffffa478d1e0 R12: 1ffff92000252de2
[  365.279688][ T3160] R13: 0000000000000596 R14: ffffc90001297008 R15: ffff88801a352f48
[  365.280195][ T3160] FS:  00007fda58925800(0000) GS:ffff8880c6c99000(0000) knlGS:0000000000000000
[  365.280781][ T3160] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  365.281197][ T3160] CR2: 00000000004e6898 CR3: 00000000027bc003 CR4: 0000000000772ef0
[  365.281704][ T3160] PKRU: 55555554
[  365.281973][ T3160] Call Trace:
[  365.282234][ T3160]  <TASK>
[ 365.282416][ T3160] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 365.282762][ T3160] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 365.283101][ T3160] netif_set_mtu (net/core/dev.c:9652) 
[ 365.283885][ T3160] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 365.284240][ T3160] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 365.284500][ T3160] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 365.284848][ T3160] br_add_if (net/bridge/br_if.c:697) 
[ 365.285108][ T3160] do_set_master (net/core/rtnetlink.c:2948) 
[ 365.285426][ T3160] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 365.285762][ T3160] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 365.286088][ T3160] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 365.286495][ T3160] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 365.286829][ T3160] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 365.287163][ T3160] ? __kernel_text_address (kernel/extable.c:79) 
[ 365.287485][ T3160] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 365.287825][ T3160] ? __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) 
[ 365.288149][ T3160] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 365.288545][ T3160] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 365.288879][ T3160] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 365.289202][ T3160] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 365.289530][ T3160] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 365.289867][ T3160] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 365.290190][ T3160] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 365.290510][ T3160] ? __create_object (mm/kmemleak.c:771) 
[ 365.290845][ T3160] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 365.291179][ T3160] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 365.291520][ T3160] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 365.291944][ T3160] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 365.292296][ T3160] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 365.292628][ T3160] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 365.292973][ T3160] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 365.293307][ T3160] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 365.293656][ T3160] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 365.294004][ T3160] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 365.294350][ T3160] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 365.294682][ T3160] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 365.295040][ T3160] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 365.295381][ T3160] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 365.295729][ T3160] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 365.296086][ T3160] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 365.296421][ T3160] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 365.296781][ T3160] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 365.297107][ T3160] ? 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) 
[ 365.297440][ T3160] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 365.297784][ T3160] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 365.298130][ T3160] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 365.298482][ T3160] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 365.298840][ T3160] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 365.299175][ T3160] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 365.299534][ T3160] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 365.299905][ T3160] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 365.300231][ T3160] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 365.300639][ T3160] ___sys_sendmsg (net/socket.c:2670) 
[ 365.300970][ T3160] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 365.301294][ T3160] ? __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) 
[ 365.301693][ T3160] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 365.302029][ T3160] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 365.302362][ T3160] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 365.302763][ T3160] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 365.303102][ T3160] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 365.303437][ T3160] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 365.303779][ T3160] __sys_sendmsg (net/socket.c:2700) 
[ 365.304101][ T3160] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 365.304496][ T3160] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 365.304852][ T3160] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 365.305175][ T3160] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 365.305507][ T3160] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  365.305912][ T3160] RIP: 0033:0x7fda58af21e7
[ 365.306247][ T3160] 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)
[  365.307376][ T3160] RSP: 002b:00007fffbbd74768 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  365.307875][ T3160] RAX: ffffffffffffffda RBX: 00007fffbbd74ea0 RCX: 00007fda58af21e7
[  365.308348][ T3160] RDX: 0000000000000000 RSI: 00007fffbbd747d0 RDI: 0000000000000005
[  365.308837][ T3160] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  365.309324][ T3160] R10: 000000003f1c7910 R11: 0000000000000246 R12: 0000000000000003
[  365.309813][ T3160] R13: 00000000686e45b7 R14: 0000000000499600 R15: 0000000000000000
| [  370.250786][   T12] ------------[ cut here ]------------
| [ 370.251186][ T12] WARNING: CPU: 2 PID: 12 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) 
| [  370.251806][   T12] Modules linked in: vxlan
| [  370.253074][   T12] Tainted: [W]=WARN
[  370.253339][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  370.253842][   T12] Workqueue: netns cleanup_net
[ 370.254207][ T12] 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) 
[ 370.254560][ T12] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  370.255790][   T12] RSP: 0018:ffffc900000c7360 EFLAGS: 00010246
[  370.256261][   T12] RAX: 0000000000000000 RBX: ffff88801a352000 RCX: 0000000000000001
[  370.256807][   T12] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  370.257312][   T12] RBP: ffffc900000c7450 R08: 0000000000000000 R09: 0000000000000000
[  370.257843][   T12] R10: ffffc900000c7480 R11: ffffffffa00be86a R12: 1ffff92000018e70
[  370.258381][   T12] R13: 00000000000005dc R14: ffffc900000c7480 R15: ffff88801a352f48
[  370.258914][   T12] FS:  0000000000000000(0000) GS:ffff8880c6c99000(0000) knlGS:0000000000000000
[  370.259528][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  370.259979][   T12] CR2: 00005639775c7dec CR3: 00000000131f7004 CR4: 0000000000772ef0
[  370.260499][   T12] PKRU: 55555554
[  370.260787][   T12] Call Trace:
[  370.261046][   T12]  <TASK>
[ 370.261232][ T12] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 370.261591][ T12] ? __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) 
[ 370.262022][ T12] ? br_del_if (net/bridge/br_if.c:742) 
[ 370.262280][ T12] ? br_device_event (net/bridge/br.c:141) 
[ 370.262622][ T12] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 370.262995][ T12] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 370.263336][ T12] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 370.263794][ T12] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 370.264214][ T12] ? ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 370.264574][ T12] ? cleanup_net (net/core/net_namespace.c:684) 
[ 370.264940][ T12] ? process_one_work (kernel/workqueue.c:3238) 
[ 370.265280][ T12] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 370.265614][ T12] ? kthread (kernel/kthread.c:464) 
[ 370.265876][ T12] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 370.266210][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 370.266560][ T12] netif_set_mtu (net/core/dev.c:9652) 
[ 370.266909][ T12] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 370.267261][ T12] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 370.267527][ T12] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 370.267873][ T12] br_del_if (net/bridge/br_if.c:743) 
[ 370.268132][ T12] br_device_event (net/bridge/br.c:141) 
[ 370.268480][ T12] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 370.268857][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 370.269202][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 370.269655][ T12] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 370.270113][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 370.270538][ T12] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 370.270902][ T12] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 370.271331][ T12] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 370.271779][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 370.272124][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 370.272556][ T12] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 370.272902][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 370.273316][ T12] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 370.273739][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 370.274423][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 370.274856][ T12] default_device_exit_batch (net/core/dev.c:12673) 
[ 370.275424][ T12] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 370.275856][ T12] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 370.276420][ T12] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 370.276988][ T12] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 370.277344][ T12] cleanup_net (net/core/net_namespace.c:684) 
[ 370.277686][ T12] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 370.278046][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 370.278396][ T12] process_one_work (kernel/workqueue.c:3238) 
[ 370.278760][ T12] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 370.279104][ T12] ? assign_work (kernel/workqueue.c:1200) 
[ 370.279454][ T12] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 370.280043][ T12] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 370.280385][ T12] kthread (kernel/kthread.c:464) 
[ 370.280655][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 370.280997][ T12] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 370.281333][ T12] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 370.281670][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 370.282012][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 370.282347][ T12] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 370.282677][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 370.283018][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  370.315198][   T12] ------------[ cut here ]------------
| [ 370.316816][ T12] WARNING: CPU: 2 PID: 12 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) 
| [  370.318108][   T12] Modules linked in: vxlan
| [  370.320575][   T12] Tainted: [W]=WARN
[  370.321306][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  370.322314][   T12] Workqueue: netns cleanup_net
[ 370.323205][ T12] 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) 
[ 370.324121][ T12] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  370.325727][   T12] RSP: 0018:ffffc900000c7360 EFLAGS: 00010246
[  370.326427][   T12] RAX: 0000000000000000 RBX: ffff8880196ca000 RCX: 0000000000000001
[  370.327312][   T12] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  370.327985][   T12] RBP: ffffc900000c7450 R08: 0000000000000000 R09: 0000000000000000
[  370.328506][   T12] R10: ffffc900000c7480 R11: ffffffffa478d1e0 R12: 1ffff92000018e70
[  370.329011][   T12] R13: 00000000000005dc R14: ffffc900000c7480 R15: ffff8880196caf48
[  370.329516][   T12] FS:  0000000000000000(0000) GS:ffff8880c6c99000(0000) knlGS:0000000000000000
[  370.330100][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  370.330845][   T12] CR2: 00005639775c7dec CR3: 000000000e54a005 CR4: 0000000000772ef0
[  370.331720][   T12] PKRU: 55555554
[  370.332177][   T12] Call Trace:
[  370.332553][   T12]  <TASK>
[ 370.332733][ T12] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 370.333077][ T12] ? __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) 
[ 370.333523][ T12] ? br_del_if (net/bridge/br_if.c:742) 
[ 370.333794][ T12] ? br_device_event (net/bridge/br.c:141) 
[ 370.334148][ T12] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 370.334484][ T12] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 370.334830][ T12] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 370.335252][ T12] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 370.335664][ T12] ? ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 370.336013][ T12] ? cleanup_net (net/core/net_namespace.c:684) 
[ 370.336368][ T12] ? process_one_work (kernel/workqueue.c:3238) 
[ 370.336701][ T12] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 370.337045][ T12] ? kthread (kernel/kthread.c:464) 
[ 370.337314][ T12] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 370.337652][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 370.338008][ T12] netif_set_mtu (net/core/dev.c:9652) 
[ 370.338360][ T12] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 370.338719][ T12] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 370.338985][ T12] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 370.339334][ T12] br_del_if (net/bridge/br_if.c:743) 
[ 370.339591][ T12] br_device_event (net/bridge/br.c:141) 
[ 370.339937][ T12] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 370.340303][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 370.340649][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 370.341077][ T12] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 370.341533][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 370.341964][ T12] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 370.342459][ T12] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 370.342909][ T12] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 370.343352][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 370.343712][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 370.344150][ T12] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 370.344490][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 370.344916][ T12] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 370.345329][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 370.345742][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 370.346179][ T12] default_device_exit_batch (net/core/dev.c:12673) 
[ 370.346522][ T12] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 370.346956][ T12] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 370.347305][ T12] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 370.347639][ T12] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 370.347992][ T12] cleanup_net (net/core/net_namespace.c:684) 
[ 370.348331][ T12] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 370.348667][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 370.349023][ T12] process_one_work (kernel/workqueue.c:3238) 
[ 370.349368][ T12] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 370.349712][ T12] ? assign_work (kernel/workqueue.c:1200) 
[ 370.350058][ T12] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 370.350396][ T12] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 370.350730][ T12] kthread (kernel/kthread.c:464) 
[ 370.351001][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 370.351352][ T12] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 370.351694][ T12] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 370.352040][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 370.352379][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 370.352718][ T12] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 370.353063][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 370.353411][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  391.945043][ T3402] ------------[ cut here ]------------
| [ 391.945535][ T3402] WARNING: CPU: 2 PID: 3402 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) 
| [  391.946207][ T3402] Modules linked in: vxlan
| [  391.947207][ T3402] Tainted: [W]=WARN
[  391.947450][ T3402] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 391.947848][ T3402] 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) 
[ 391.948184][ T3402] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  391.949342][ T3402] RSP: 0018:ffffc90001d16ef0 EFLAGS: 00010246
[  391.949766][ T3402] RAX: 0000000000000000 RBX: ffff888019c5a000 RCX: 0000000000000001
[  391.950250][ T3402] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  391.950734][ T3402] RBP: ffffc90001d16fd8 R08: 0000000000000000 R09: 0000000000000000
[  391.951257][ T3402] R10: ffffc90001d17008 R11: ffffffffa478d1e0 R12: 1ffff920003a2de2
[  391.951737][ T3402] R13: 00000000000005dc R14: ffffc90001d17008 R15: ffff888019c5af48
[  391.952252][ T3402] FS:  00007f4dd3693800(0000) GS:ffff8880c6c99000(0000) knlGS:0000000000000000
[  391.952834][ T3402] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  391.953257][ T3402] CR2: 00000000004e6890 CR3: 0000000012c6b005 CR4: 0000000000772ef0
[  391.953773][ T3402] PKRU: 55555554
[  391.954024][ T3402] Call Trace:
[  391.954289][ T3402]  <TASK>
[ 391.954468][ T3402] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 391.954821][ T3402] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 391.955186][ T3402] netif_set_mtu (net/core/dev.c:9652) 
[ 391.955510][ T3402] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 391.955863][ T3402] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 391.956110][ T3402] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 391.956452][ T3402] br_add_if (net/bridge/br_if.c:697) 
[ 391.956712][ T3402] do_set_master (net/core/rtnetlink.c:2948) 
[ 391.957044][ T3402] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 391.957401][ T3402] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 391.957729][ T3402] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 391.958155][ T3402] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 391.958483][ T3402] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 391.958833][ T3402] ? __kernel_text_address (kernel/extable.c:79) 
[ 391.959173][ T3402] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 391.959498][ T3402] ? __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) 
[ 391.959842][ T3402] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 391.960248][ T3402] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 391.960571][ T3402] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 391.960907][ T3402] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 391.961245][ T3402] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 391.961573][ T3402] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 391.961913][ T3402] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 391.962250][ T3402] ? __create_object (mm/kmemleak.c:771) 
[ 391.962584][ T3402] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 391.962933][ T3402] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 391.963279][ T3402] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 391.963687][ T3402] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 391.964027][ T3402] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 391.964372][ T3402] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 391.964697][ T3402] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 391.965046][ T3402] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 391.965388][ T3402] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 391.965706][ T3402] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 391.966044][ T3402] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 391.966380][ T3402] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 391.966701][ T3402] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 391.967048][ T3402] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 391.967393][ T3402] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 391.967725][ T3402] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 391.968062][ T3402] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 391.968407][ T3402] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 391.968730][ T3402] ? 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) 
[ 391.969070][ T3402] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 391.969495][ T3402] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 391.969871][ T3402] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 391.970242][ T3402] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 391.970569][ T3402] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 391.970910][ T3402] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 391.971254][ T3402] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 391.971582][ T3402] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 391.971916][ T3402] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 391.972343][ T3402] ___sys_sendmsg (net/socket.c:2670) 
[ 391.972674][ T3402] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 391.973015][ T3402] ? __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) 
[ 391.973448][ T3402] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 391.973798][ T3402] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 391.974139][ T3402] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 391.974474][ T3402] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 391.974816][ T3402] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 391.975168][ T3402] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 391.975504][ T3402] __sys_sendmsg (net/socket.c:2700) 
[ 391.975861][ T3402] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 391.976284][ T3402] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 391.976624][ T3402] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 391.976964][ T3402] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 391.977313][ T3402] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  391.977724][ T3402] RIP: 0033:0x7f4dd38601e7
[ 391.978075][ T3402] 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)
[  391.979242][ T3402] RSP: 002b:00007fff3246c638 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  391.979731][ T3402] RAX: ffffffffffffffda RBX: 00007fff3246cd70 RCX: 00007f4dd38601e7
[  391.980256][ T3402] RDX: 0000000000000000 RSI: 00007fff3246c6a0 RDI: 0000000000000005
[  391.980741][ T3402] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  391.981252][ T3402] R10: 000000001bac7910 R11: 0000000000000246 R12: 0000000000000003
[  391.981742][ T3402] R13: 00000000686e45d2 R14: 0000000000499600 R15: 0000000000000000
| [  393.561266][ T3428] ------------[ cut here ]------------
| [ 393.561584][ T3428] WARNING: CPU: 2 PID: 3428 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) 
| [  393.562188][ T3428] Modules linked in: vxlan
| [  393.563128][ T3428] Tainted: [W]=WARN
[  393.563374][ T3428] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 393.563787][ T3428] 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) 
[ 393.564107][ T3428] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  393.565248][ T3428] RSP: 0018:ffffc90001dd6ef0 EFLAGS: 00010246
[  393.565657][ T3428] RAX: 0000000000000000 RBX: ffff888019c5a000 RCX: 0000000000000001
[  393.566149][ T3428] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  393.566630][ T3428] RBP: ffffc90001dd6fd8 R08: 0000000000000000 R09: 0000000000000000
[  393.567121][ T3428] R10: ffffc90001dd7008 R11: ffffffffa50ceab8 R12: 1ffff920003bade2
[  393.567606][ T3428] R13: 00000000000005aa R14: ffffc90001dd7008 R15: ffff888019c5af48
[  393.568111][ T3428] FS:  00007f4f47c9b800(0000) GS:ffff8880c6c99000(0000) knlGS:0000000000000000
[  393.568676][ T3428] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  393.569320][ T3428] CR2: 00000000004e6890 CR3: 000000001834a001 CR4: 0000000000772ef0
[  393.570060][ T3428] PKRU: 55555554
[  393.570460][ T3428] Call Trace:
[  393.570816][ T3428]  <TASK>
[ 393.570984][ T3428] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 393.571306][ T3428] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 393.571622][ T3428] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 393.572022][ T3428] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 393.572335][ T3428] netif_set_mtu (net/core/dev.c:9652) 
[ 393.572647][ T3428] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 393.572975][ T3428] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 393.573362][ T3428] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 393.573612][ T3428] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 393.573936][ T3428] br_add_if (net/bridge/br_if.c:697) 
[ 393.574188][ T3428] do_set_master (net/core/rtnetlink.c:2948) 
[ 393.574492][ T3428] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 393.574813][ T3428] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 393.575130][ T3428] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 393.575520][ T3428] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 393.575860][ T3428] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 393.576173][ T3428] ? __kernel_text_address (kernel/extable.c:79) 
[ 393.576501][ T3428] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 393.576837][ T3428] ? __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) 
[ 393.577168][ T3428] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 393.577566][ T3428] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 393.577894][ T3428] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 393.578199][ T3428] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 393.578503][ T3428] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 393.578821][ T3428] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 393.579129][ T3428] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 393.579438][ T3428] ? __create_object (mm/kmemleak.c:771) 
[ 393.579775][ T3428] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 393.580093][ T3428] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 393.580402][ T3428] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 393.580790][ T3428] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 393.581102][ T3428] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 393.581414][ T3428] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 393.581718][ T3428] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 393.582041][ T3428] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 393.582413][ T3428] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 393.582718][ T3428] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 393.583036][ T3428] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 393.583346][ T3428] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 393.583665][ T3428] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 393.584004][ T3428] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 393.584322][ T3428] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 393.584641][ T3428] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 393.584961][ T3428] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 393.585282][ T3428] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 393.585586][ T3428] ? 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) 
[ 393.585907][ T3428] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 393.586218][ T3428] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 393.586524][ T3428] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 393.586863][ T3428] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 393.587180][ T3428] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 393.587486][ T3428] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 393.587821][ T3428] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 393.588132][ T3428] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 393.588440][ T3428] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 393.588839][ T3428] ___sys_sendmsg (net/socket.c:2670) 
[ 393.589151][ T3428] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 393.589468][ T3428] ? __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) 
[ 393.589862][ T3428] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 393.590179][ T3428] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 393.590486][ T3428] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 393.590809][ T3428] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 393.591118][ T3428] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 393.591439][ T3428] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 393.591775][ T3428] __sys_sendmsg (net/socket.c:2700) 
[ 393.592082][ T3428] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 393.592460][ T3428] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 393.592789][ T3428] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 393.593097][ T3428] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 393.593416][ T3428] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  393.593806][ T3428] RIP: 0033:0x7f4f47e681e7
[ 393.594138][ T3428] 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)
[  393.595205][ T3428] RSP: 002b:00007fff7de34a28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  393.595661][ T3428] RAX: ffffffffffffffda RBX: 00007fff7de35160 RCX: 00007f4f47e681e7
[  393.596143][ T3428] RDX: 0000000000000000 RSI: 00007fff7de34a90 RDI: 0000000000000005
[  393.596598][ T3428] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  393.597058][ T3428] R10: 000000002089b910 R11: 0000000000000246 R12: 0000000000000003
[  393.597509][ T3428] R13: 00000000686e45d3 R14: 0000000000499600 R15: 0000000000000000
| [  397.205973][ T3479] ------------[ cut here ]------------
| [ 397.206271][ T3479] WARNING: CPU: 0 PID: 3479 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) 
| [  397.206921][ T3479] Modules linked in: vxlan
| [  397.207939][ T3479] Tainted: [W]=WARN
[  397.208187][ T3479] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 397.208554][ T3479] 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) 
[ 397.208885][ T3479] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  397.209964][ T3479] RSP: 0018:ffffc90001f26ef0 EFLAGS: 00010246
[  397.210340][ T3479] RAX: 0000000000000000 RBX: ffff888009af2000 RCX: 0000000000000001
[  397.210790][ T3479] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  397.211254][ T3479] RBP: ffffc90001f26fd8 R08: 0000000000000000 R09: 0000000000000000
[  397.211694][ T3479] R10: ffffc90001f27008 R11: ffffffffa478d1e0 R12: 1ffff920003e4de2
[  397.212165][ T3479] R13: 00000000000005dc R14: ffffc90001f27008 R15: ffff888009af2f48
[  397.212609][ T3479] FS:  00007f4394e6d800(0000) GS:ffff8880c6b99000(0000) knlGS:0000000000000000
[  397.213151][ T3479] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  397.213572][ T3479] CR2: 00000000004e6898 CR3: 0000000018cc2003 CR4: 0000000000772ef0
[  397.214044][ T3479] PKRU: 55555554
[  397.214271][ T3479] Call Trace:
[  397.214493][ T3479]  <TASK>
[ 397.214647][ T3479] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 397.214966][ T3479] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 397.215276][ T3479] netif_set_mtu (net/core/dev.c:9652) 
[ 397.215570][ T3479] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 397.215887][ T3479] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 397.216123][ T3479] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 397.216445][ T3479] br_add_if (net/bridge/br_if.c:697) 
[ 397.216681][ T3479] do_set_master (net/core/rtnetlink.c:2948) 
[ 397.216998][ T3479] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 397.217300][ T3479] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 397.217600][ T3479] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 397.218009][ T3479] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 397.218306][ T3479] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 397.218618][ T3479] ? __kernel_text_address (kernel/extable.c:79) 
[ 397.218938][ T3479] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 397.219252][ T3479] ? __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) 
[ 397.219549][ T3479] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 397.219923][ T3479] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 397.220236][ T3479] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 397.220527][ T3479] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 397.220840][ T3479] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 397.221149][ T3479] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 397.221446][ T3479] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 397.221739][ T3479] ? __create_object (mm/kmemleak.c:771) 
[ 397.222051][ T3479] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 397.222369][ T3479] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 397.222668][ T3479] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 397.223047][ T3479] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 397.223368][ T3479] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 397.223684][ T3479] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 397.223991][ T3479] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 397.224306][ T3479] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 397.224603][ T3479] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 397.224902][ T3479] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 397.225215][ T3479] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 397.225509][ T3479] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 397.225822][ T3479] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 397.226123][ T3479] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 397.226436][ T3479] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 397.226733][ T3479] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 397.227053][ T3479] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 397.227370][ T3479] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 397.227661][ T3479] ? 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) 
[ 397.227974][ T3479] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 397.228290][ T3479] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 397.228585][ T3479] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 397.228894][ T3479] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 397.229192][ T3479] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 397.229502][ T3479] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 397.229812][ T3479] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 397.230118][ T3479] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 397.230423][ T3479] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 397.230811][ T3479] ___sys_sendmsg (net/socket.c:2670) 
[ 397.231103][ T3479] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 397.231412][ T3479] ? __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) 
[ 397.231787][ T3479] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 397.232086][ T3479] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 397.232403][ T3479] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 397.232702][ T3479] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 397.233005][ T3479] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 397.233298][ T3479] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 397.233634][ T3479] __sys_sendmsg (net/socket.c:2700) 
[ 397.233939][ T3479] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 397.234305][ T3479] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 397.234637][ T3479] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 397.234942][ T3479] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 397.235238][ T3479] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  397.235618][ T3479] RIP: 0033:0x7f439503a1e7
[ 397.235934][ T3479] 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)
[  397.237016][ T3479] RSP: 002b:00007ffd796ce5e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  397.237474][ T3479] RAX: ffffffffffffffda RBX: 00007ffd796ced20 RCX: 00007f439503a1e7
[  397.237925][ T3479] RDX: 0000000000000000 RSI: 00007ffd796ce650 RDI: 0000000000000005
[  397.238366][ T3479] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  397.238844][ T3479] R10: 0000000014ae7910 R11: 0000000000000246 R12: 0000000000000003
[  397.239286][ T3479] R13: 00000000686e45d7 R14: 0000000000499600 R15: 0000000000000000
| [  398.780517][ T3505] ------------[ cut here ]------------
| [ 398.780846][ T3505] WARNING: CPU: 0 PID: 3505 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) 
| [  398.781453][ T3505] Modules linked in: vxlan
| [  398.782418][ T3505] Tainted: [W]=WARN
[  398.782652][ T3505] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 398.783045][ T3505] 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) 
[ 398.783367][ T3505] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  398.784537][ T3505] RSP: 0018:ffffc90001ff6ef0 EFLAGS: 00010246
[  398.784938][ T3505] RAX: 0000000000000000 RBX: ffff888009af2000 RCX: 0000000000000001
[  398.785403][ T3505] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  398.785881][ T3505] RBP: ffffc90001ff6fd8 R08: 0000000000000000 R09: 0000000000000000
[  398.786349][ T3505] R10: ffffc90001ff7008 R11: ffffffffa50ceab8 R12: 1ffff920003fede2
[  398.786829][ T3505] R13: 0000000000000596 R14: ffffc90001ff7008 R15: ffff888009af2f48
[  398.787297][ T3505] FS:  00007ffaf2b25800(0000) GS:ffff8880c6b99000(0000) knlGS:0000000000000000
[  398.787845][ T3505] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  398.788239][ T3505] CR2: 00000000004e6898 CR3: 0000000013ccf004 CR4: 0000000000772ef0
[  398.788715][ T3505] PKRU: 55555554
[  398.788957][ T3505] Call Trace:
[  398.789190][ T3505]  <TASK>
[ 398.789352][ T3505] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 398.789669][ T3505] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 398.789992][ T3505] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 398.790381][ T3505] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 398.790731][ T3505] netif_set_mtu (net/core/dev.c:9652) 
[ 398.791049][ T3505] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 398.791359][ T3505] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 398.791740][ T3505] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 398.791976][ T3505] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 398.792283][ T3505] br_add_if (net/bridge/br_if.c:697) 
[ 398.792518][ T3505] do_set_master (net/core/rtnetlink.c:2948) 
[ 398.792822][ T3505] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 398.793133][ T3505] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 398.793454][ T3505] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 398.793900][ T3505] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 398.794217][ T3505] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 398.794529][ T3505] ? __kernel_text_address (kernel/extable.c:79) 
[ 398.794850][ T3505] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 398.795165][ T3505] ? __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) 
[ 398.795484][ T3505] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 398.795916][ T3505] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 398.796233][ T3505] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 398.796552][ T3505] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 398.796869][ T3505] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 398.797183][ T3505] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 398.797493][ T3505] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 398.797818][ T3505] ? __create_object (mm/kmemleak.c:771) 
[ 398.798131][ T3505] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 398.798445][ T3505] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 398.798765][ T3505] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 398.799146][ T3505] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 398.799461][ T3505] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 398.799785][ T3505] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 398.800096][ T3505] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 398.800420][ T3505] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 398.800736][ T3505] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 398.801055][ T3505] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 398.801368][ T3505] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 398.801679][ T3505] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 398.802002][ T3505] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 398.802318][ T3505] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 398.802635][ T3505] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 398.802966][ T3505] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 398.803281][ T3505] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 398.803631][ T3505] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 398.803952][ T3505] ? 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) 
[ 398.804267][ T3505] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 398.804581][ T3505] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 398.804909][ T3505] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 398.805237][ T3505] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 398.805551][ T3505] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 398.805870][ T3505] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 398.806191][ T3505] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 398.806508][ T3505] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 398.806825][ T3505] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 398.807223][ T3505] ___sys_sendmsg (net/socket.c:2670) 
[ 398.807541][ T3505] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 398.807858][ T3505] ? __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) 
[ 398.808249][ T3505] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 398.808565][ T3505] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 398.808889][ T3505] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 398.809207][ T3505] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 398.809519][ T3505] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 398.809846][ T3505] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 398.810165][ T3505] __sys_sendmsg (net/socket.c:2700) 
[ 398.810472][ T3505] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 398.810865][ T3505] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 398.811190][ T3505] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 398.811529][ T3505] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 398.811854][ T3505] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  398.812251][ T3505] RIP: 0033:0x7ffaf2cf21e7
[ 398.812574][ T3505] 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)
[  398.813697][ T3505] RSP: 002b:00007ffcd275ed98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  398.814171][ T3505] RAX: ffffffffffffffda RBX: 00007ffcd275f4d0 RCX: 00007ffaf2cf21e7
[  398.814651][ T3505] RDX: 0000000000000000 RSI: 00007ffcd275ee00 RDI: 0000000000000005
[  398.815123][ T3505] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  398.815585][ T3505] R10: 000000000d569910 R11: 0000000000000246 R12: 0000000000000003
[  398.816055][ T3505] R13: 00000000686e45d9 R14: 0000000000499600 R15: 0000000000000000
| [  402.664973][ T3555] ------------[ cut here ]------------
| [ 402.665296][ T3555] WARNING: CPU: 2 PID: 3555 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) 
| [  402.665907][ T3555] Modules linked in: vxlan
| [  402.666855][ T3555] Tainted: [W]=WARN
[  402.667097][ T3555] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 402.667485][ T3555] 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) 
[ 402.667829][ T3555] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  402.668933][ T3555] RSP: 0018:ffffc900020d6ef0 EFLAGS: 00010246
[  402.669328][ T3555] RAX: 0000000000000000 RBX: ffff8880140fa000 RCX: 0000000000000001
[  402.669795][ T3555] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  402.670260][ T3555] RBP: ffffc900020d6fd8 R08: 0000000000000000 R09: 0000000000000000
[  402.670726][ T3555] R10: ffffc900020d7008 R11: ffffffffa478d1e0 R12: 1ffff9200041ade2
[  402.671203][ T3555] R13: 00000000000005dc R14: ffffc900020d7008 R15: ffff8880140faf48
[  402.671666][ T3555] FS:  00007f93c5b63800(0000) GS:ffff8880c6c99000(0000) knlGS:0000000000000000
[  402.672220][ T3555] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  402.672619][ T3555] CR2: 00000000004e6890 CR3: 0000000011e27004 CR4: 0000000000772ef0
[  402.673119][ T3555] PKRU: 55555554
[  402.673359][ T3555] Call Trace:
[  402.673613][ T3555]  <TASK>
[ 402.673809][ T3555] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 402.674128][ T3555] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 402.674454][ T3555] netif_set_mtu (net/core/dev.c:9652) 
[ 402.674783][ T3555] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 402.675120][ T3555] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 402.675363][ T3555] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 402.675679][ T3555] br_add_if (net/bridge/br_if.c:697) 
[ 402.675949][ T3555] do_set_master (net/core/rtnetlink.c:2948) 
[ 402.676277][ T3555] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 402.676596][ T3555] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 402.676926][ T3555] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 402.677327][ T3555] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 402.677657][ T3555] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 402.677977][ T3555] ? __kernel_text_address (kernel/extable.c:79) 
[ 402.678286][ T3555] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 402.678602][ T3555] ? __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) 
[ 402.678924][ T3555] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 402.679302][ T3555] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 402.679610][ T3555] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 402.679927][ T3555] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 402.680232][ T3555] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 402.680539][ T3555] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 402.680861][ T3555] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 402.681167][ T3555] ? __create_object (mm/kmemleak.c:771) 
[ 402.681481][ T3555] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 402.681802][ T3555] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 402.682107][ T3555] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 402.682484][ T3555] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 402.682805][ T3555] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 402.683119][ T3555] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 402.683440][ T3555] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 402.683781][ T3555] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 402.684090][ T3555] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 402.684395][ T3555] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 402.684704][ T3555] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 402.685024][ T3555] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 402.685333][ T3555] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 402.685651][ T3555] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 402.685973][ T3555] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 402.686281][ T3555] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 402.686590][ T3555] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 402.686921][ T3555] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 402.687227][ T3555] ? 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) 
[ 402.687536][ T3555] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 402.687865][ T3555] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 402.688172][ T3555] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 402.688482][ T3555] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 402.688800][ T3555] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 402.689108][ T3555] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 402.689421][ T3555] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 402.689730][ T3555] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 402.690048][ T3555] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 402.690445][ T3555] ___sys_sendmsg (net/socket.c:2670) 
[ 402.690777][ T3555] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 402.691090][ T3555] ? __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) 
[ 402.691471][ T3555] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 402.691791][ T3555] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 402.692102][ T3555] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 402.692446][ T3555] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 402.692786][ T3555] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 402.693100][ T3555] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 402.693441][ T3555] __sys_sendmsg (net/socket.c:2700) 
[ 402.693872][ T3555] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 402.694259][ T3555] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 402.694625][ T3555] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 402.694971][ T3555] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 402.695291][ T3555] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  402.695698][ T3555] RIP: 0033:0x7f93c5d301e7
[ 402.696046][ T3555] 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)
[  402.697173][ T3555] RSP: 002b:00007ffc6cff2968 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  402.697646][ T3555] RAX: ffffffffffffffda RBX: 00007ffc6cff30a0 RCX: 00007f93c5d301e7
[  402.698138][ T3555] RDX: 0000000000000000 RSI: 00007ffc6cff29d0 RDI: 0000000000000005
[  402.698590][ T3555] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  402.699082][ T3555] R10: 00000000385cf910 R11: 0000000000000246 R12: 0000000000000003
[  402.699570][ T3555] R13: 00000000686e45dd R14: 0000000000499600 R15: 0000000000000000
| [  404.410943][ T3581] ------------[ cut here ]------------
| [ 404.411280][ T3581] WARNING: CPU: 3 PID: 3581 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) 
| [  404.411925][ T3581] Modules linked in: vxlan
| [  404.412920][ T3581] Tainted: [W]=WARN
[  404.413190][ T3581] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 404.413593][ T3581] 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) 
[ 404.413940][ T3581] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  404.415082][ T3581] RSP: 0018:ffffc900021a6ef0 EFLAGS: 00010246
[  404.415484][ T3581] RAX: 0000000000000000 RBX: ffff8880140fa000 RCX: 0000000000000001
[  404.415972][ T3581] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  404.416434][ T3581] RBP: ffffc900021a6fd8 R08: 0000000000000000 R09: 0000000000000000
[  404.417022][ T3581] R10: ffffc900021a7008 R11: ffffffffa50ceab8 R12: 1ffff92000434de2
[  404.417855][ T3581] R13: 00000000000005aa R14: ffffc900021a7008 R15: ffff8880140faf48
[  404.418651][ T3581] FS:  00007fee79889800(0000) GS:ffff8880c6d19000(0000) knlGS:0000000000000000
[  404.419630][ T3581] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  404.420321][ T3581] CR2: 00000000004e6890 CR3: 0000000016136005 CR4: 0000000000772ef0
[  404.421168][ T3581] PKRU: 55555554
[  404.421571][ T3581] Call Trace:
[  404.421946][ T3581]  <TASK>
[ 404.422112][ T3581] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 404.422434][ T3581] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 404.422758][ T3581] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 404.423168][ T3581] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 404.423504][ T3581] netif_set_mtu (net/core/dev.c:9652) 
[ 404.423835][ T3581] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 404.424160][ T3581] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 404.424551][ T3581] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 404.424819][ T3581] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 404.425137][ T3581] br_add_if (net/bridge/br_if.c:697) 
[ 404.425386][ T3581] do_set_master (net/core/rtnetlink.c:2948) 
[ 404.425694][ T3581] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 404.426416][ T3581] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 404.426766][ T3581] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 404.427435][ T3581] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 404.427826][ T3581] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 404.428146][ T3581] ? __kernel_text_address (kernel/extable.c:79) 
[ 404.428459][ T3581] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 404.428803][ T3581] ? __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) 
[ 404.429128][ T3581] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 404.429514][ T3581] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 404.429847][ T3581] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 404.430161][ T3581] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 404.430475][ T3581] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 404.430817][ T3581] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 404.431134][ T3581] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 404.431453][ T3581] ? __create_object (mm/kmemleak.c:771) 
[ 404.431781][ T3581] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 404.432111][ T3581] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 404.432425][ T3581] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 404.432840][ T3581] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 404.433165][ T3581] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 404.433492][ T3581] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 404.433825][ T3581] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 404.434156][ T3581] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 404.434467][ T3581] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 404.434793][ T3581] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 404.435298][ T3581] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 404.435816][ T3581] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 404.436330][ T3581] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 404.436877][ T3581] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 404.437449][ T3581] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 404.437997][ T3581] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 404.438500][ T3581] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 404.439051][ T3581] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 404.439551][ T3581] ? 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) 
[ 404.440072][ T3581] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 404.440580][ T3581] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 404.441126][ T3581] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 404.441645][ T3581] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 404.442171][ T3581] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 404.442665][ T3581] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 404.443193][ T3581] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 404.443710][ T3581] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 404.444230][ T3581] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 404.444927][ T3581] ___sys_sendmsg (net/socket.c:2670) 
[ 404.445443][ T3581] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 404.445948][ T3581] ? __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) 
[ 404.446593][ T3581] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 404.447111][ T3581] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 404.447613][ T3581] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 404.448144][ T3581] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 404.448645][ T3581] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 404.449191][ T3581] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 404.449727][ T3581] __sys_sendmsg (net/socket.c:2700) 
[ 404.450256][ T3581] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 404.450913][ T3581] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 404.451455][ T3581] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 404.451984][ T3581] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 404.452501][ T3581] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  404.453173][ T3581] RIP: 0033:0x7fee79a561e7
[ 404.453628][ T3581] 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)
[  404.454721][ T3581] RSP: 002b:00007ffd1a233c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  404.455197][ T3581] RAX: ffffffffffffffda RBX: 00007ffd1a2343a0 RCX: 00007fee79a561e7
[  404.455644][ T3581] RDX: 0000000000000000 RSI: 00007ffd1a233cd0 RDI: 0000000000000005
[  404.456099][ T3581] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  404.456558][ T3581] R10: 0000000008067910 R11: 0000000000000246 R12: 0000000000000003
[  404.457033][ T3581] R13: 00000000686e45de R14: 0000000000499600 R15: 0000000000000000
| [  408.283289][ T3631] ------------[ cut here ]------------
| [ 408.283665][ T3631] WARNING: CPU: 0 PID: 3631 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) 
| [  408.284299][ T3631] Modules linked in: vxlan
| [  408.285275][ T3631] Tainted: [W]=WARN
[  408.285516][ T3631] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 408.285917][ T3631] 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) 
[ 408.286242][ T3631] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  408.287365][ T3631] RSP: 0018:ffffc90002346ef0 EFLAGS: 00010246
[  408.287765][ T3631] RAX: 0000000000000000 RBX: ffff88801582a000 RCX: 0000000000000001
[  408.288234][ T3631] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  408.288701][ T3631] RBP: ffffc90002346fd8 R08: 0000000000000000 R09: 0000000000000000
[  408.289175][ T3631] R10: ffffc90002347008 R11: ffffffffa478d1e0 R12: 1ffff92000468de2
[  408.289654][ T3631] R13: 00000000000005dc R14: ffffc90002347008 R15: ffff88801582af48
[  408.290128][ T3631] FS:  00007fe70927c800(0000) GS:ffff8880c6b99000(0000) knlGS:0000000000000000
[  408.290672][ T3631] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  408.291078][ T3631] CR2: 00000000004e6898 CR3: 0000000018c00003 CR4: 0000000000772ef0
[  408.291547][ T3631] PKRU: 55555554
[  408.291787][ T3631] Call Trace:
[  408.292023][ T3631]  <TASK>
[ 408.292184][ T3631] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 408.292498][ T3631] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 408.292829][ T3631] netif_set_mtu (net/core/dev.c:9652) 
[ 408.293139][ T3631] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 408.293485][ T3631] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 408.293722][ T3631] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 408.294044][ T3631] br_add_if (net/bridge/br_if.c:697) 
[ 408.294291][ T3631] do_set_master (net/core/rtnetlink.c:2948) 
[ 408.294595][ T3631] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 408.294916][ T3631] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 408.295233][ T3631] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 408.295627][ T3631] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 408.295948][ T3631] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 408.296257][ T3631] ? __kernel_text_address (kernel/extable.c:79) 
[ 408.296567][ T3631] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 408.296891][ T3631] ? __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) 
[ 408.297206][ T3631] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 408.297612][ T3631] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 408.297940][ T3631] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 408.298258][ T3631] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 408.298566][ T3631] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 408.298890][ T3631] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 408.299199][ T3631] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 408.299505][ T3631] ? __create_object (mm/kmemleak.c:771) 
[ 408.299824][ T3631] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 408.300136][ T3631] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 408.300454][ T3631] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 408.300848][ T3631] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 408.301168][ T3631] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 408.301482][ T3631] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 408.301803][ T3631] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 408.302120][ T3631] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 408.302429][ T3631] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 408.302739][ T3631] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 408.303067][ T3631] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 408.303376][ T3631] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 408.303701][ T3631] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 408.304009][ T3631] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 408.304308][ T3631] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 408.304608][ T3631] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 408.304912][ T3631] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 408.305222][ T3631] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 408.305513][ T3631] ? 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) 
[ 408.305819][ T3631] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 408.306129][ T3631] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 408.306424][ T3631] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 408.306728][ T3631] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 408.307042][ T3631] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 408.307351][ T3631] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 408.307661][ T3631] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 408.307978][ T3631] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 408.308279][ T3631] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 408.308669][ T3631] ___sys_sendmsg (net/socket.c:2670) 
[ 408.308984][ T3631] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 408.309288][ T3631] ? __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) 
[ 408.309681][ T3631] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 408.310003][ T3631] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 408.310317][ T3631] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 408.310632][ T3631] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 408.310952][ T3631] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 408.311264][ T3631] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 408.311585][ T3631] __sys_sendmsg (net/socket.c:2700) 
[ 408.311907][ T3631] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 408.312299][ T3631] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 408.312625][ T3631] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 408.312947][ T3631] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 408.313262][ T3631] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  408.313652][ T3631] RIP: 0033:0x7fe7094491e7
[ 408.313996][ T3631] 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)
[  408.315079][ T3631] RSP: 002b:00007ffd983bc9d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  408.315533][ T3631] RAX: ffffffffffffffda RBX: 00007ffd983bd110 RCX: 00007fe7094491e7
[  408.316000][ T3631] RDX: 0000000000000000 RSI: 00007ffd983bca40 RDI: 0000000000000005
[  408.316449][ T3631] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  408.316904][ T3631] R10: 0000000018353910 R11: 0000000000000246 R12: 0000000000000003
[  408.317347][ T3631] R13: 00000000686e45e2 R14: 0000000000499600 R15: 0000000000000000
| [  410.049091][ T3657] ------------[ cut here ]------------
| [ 410.049606][ T3657] WARNING: CPU: 1 PID: 3657 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) 
| [  410.051817][ T3657] Modules linked in: vxlan
| [  410.053696][ T3657] Tainted: [W]=WARN
[  410.054387][ T3657] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 410.055061][ T3657] 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) 
[ 410.055618][ T3657] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  410.057420][ T3657] RSP: 0018:ffffc90002406ef0 EFLAGS: 00010246
[  410.058185][ T3657] RAX: 0000000000000000 RBX: ffff88801582a000 RCX: 0000000000000001
[  410.058974][ T3657] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  410.059734][ T3657] RBP: ffffc90002406fd8 R08: 0000000000000000 R09: 0000000000000000
[  410.060545][ T3657] R10: ffffc90002407008 R11: ffffffffa478d1e0 R12: 1ffff92000480de2
[  410.061349][ T3657] R13: 0000000000000596 R14: ffffc90002407008 R15: ffff88801582af48
[  410.062148][ T3657] FS:  00007f9127059800(0000) GS:ffff8880c6c19000(0000) knlGS:0000000000000000
[  410.063078][ T3657] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  410.063737][ T3657] CR2: 00000000004e6898 CR3: 0000000013bbf003 CR4: 0000000000772ef0
[  410.064530][ T3657] PKRU: 55555554
[  410.064935][ T3657] Call Trace:
[  410.065323][ T3657]  <TASK>
[ 410.065587][ T3657] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 410.066133][ T3657] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 410.066676][ T3657] netif_set_mtu (net/core/dev.c:9652) 
[ 410.067067][ T3657] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 410.067380][ T3657] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 410.067620][ T3657] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 410.067930][ T3657] br_add_if (net/bridge/br_if.c:697) 
[ 410.068162][ T3657] do_set_master (net/core/rtnetlink.c:2948) 
[ 410.068465][ T3657] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 410.068807][ T3657] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 410.069111][ T3657] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 410.069491][ T3657] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 410.069804][ T3657] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 410.070101][ T3657] ? __kernel_text_address (kernel/extable.c:79) 
[ 410.070399][ T3657] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 410.070903][ T3657] ? __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) 
[ 410.071444][ T3657] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 410.071842][ T3657] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 410.072141][ T3657] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 410.072438][ T3657] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 410.072740][ T3657] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 410.073063][ T3657] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 410.073359][ T3657] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 410.073692][ T3657] ? __create_object (mm/kmemleak.c:771) 
[ 410.074024][ T3657] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 410.074319][ T3657] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 410.074628][ T3657] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 410.075002][ T3657] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 410.075303][ T3657] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 410.075688][ T3657] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 410.076081][ T3657] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 410.076390][ T3657] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 410.076699][ T3657] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 410.077005][ T3657] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 410.077312][ T3657] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 410.077613][ T3657] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 410.077921][ T3657] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 410.078222][ T3657] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 410.078537][ T3657] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 410.078841][ T3657] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 410.079137][ T3657] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 410.079440][ T3657] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 410.079740][ T3657] ? 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) 
[ 410.080069][ T3657] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 410.080371][ T3657] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 410.080825][ T3657] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 410.081338][ T3657] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 410.081651][ T3657] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 410.081958][ T3657] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 410.082261][ T3657] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 410.082571][ T3657] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 410.082874][ T3657] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 410.083259][ T3657] ___sys_sendmsg (net/socket.c:2670) 
[ 410.083585][ T3657] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 410.083919][ T3657] ? __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) 
[ 410.084283][ T3657] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 410.084592][ T3657] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 410.084903][ T3657] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 410.085202][ T3657] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 410.085500][ T3657] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 410.085919][ T3657] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 410.086223][ T3657] __sys_sendmsg (net/socket.c:2700) 
[ 410.086524][ T3657] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 410.086897][ T3657] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 410.087204][ T3657] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 410.087498][ T3657] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 410.087800][ T3657] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  410.088172][ T3657] RIP: 0033:0x7f91272261e7
[ 410.088475][ T3657] 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)
[  410.089534][ T3657] RSP: 002b:00007ffe990ad018 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  410.089995][ T3657] RAX: ffffffffffffffda RBX: 00007ffe990ad750 RCX: 00007f91272261e7
[  410.090434][ T3657] RDX: 0000000000000000 RSI: 00007ffe990ad080 RDI: 0000000000000005
[  410.090880][ T3657] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  410.091319][ T3657] R10: 000000003d28b910 R11: 0000000000000246 R12: 0000000000000003
[  410.091768][ T3657] R13: 00000000686e45e4 R14: 0000000000499600 R15: 0000000000000000
| [  414.958674][   T12] ------------[ cut here ]------------
| [ 414.959261][ T12] WARNING: CPU: 1 PID: 12 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) 
| [  414.960050][   T12] Modules linked in: vxlan
| [  414.961895][   T12] Tainted: [W]=WARN
[  414.962327][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  414.963041][   T12] Workqueue: netns cleanup_net
[ 414.963642][ T12] 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) 
[ 414.964241][ T12] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  414.966251][   T12] RSP: 0000:ffffc900000c7360 EFLAGS: 00010246
[  414.966973][   T12] RAX: 0000000000000000 RBX: ffff88801582a000 RCX: 0000000000000001
[  414.967465][   T12] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  414.967982][   T12] RBP: ffffc900000c7450 R08: 0000000000000000 R09: 0000000000000000
[  414.968471][   T12] R10: ffffc900000c7480 R11: ffffffffa478d1e0 R12: 1ffff92000018e70
[  414.968986][   T12] R13: 00000000000005dc R14: ffffc900000c7480 R15: ffff88801582af48
[  414.969470][   T12] FS:  0000000000000000(0000) GS:ffff8880c6c19000(0000) knlGS:0000000000000000
[  414.970062][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  414.970477][   T12] CR2: 00007fb80217d038 CR3: 000000000e54a005 CR4: 0000000000772ef0
[  414.970995][   T12] PKRU: 55555554
[  414.971237][   T12] Call Trace:
[  414.971479][   T12]  <TASK>
[ 414.971642][ T12] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 414.971996][ T12] ? __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) 
[ 414.972398][ T12] ? br_del_if (net/bridge/br_if.c:742) 
[ 414.972643][ T12] ? br_device_event (net/bridge/br.c:141) 
[ 414.972988][ T12] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 414.973326][ T12] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 414.973664][ T12] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 414.974084][ T12] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 414.974485][ T12] ? ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 414.974827][ T12] ? cleanup_net (net/core/net_namespace.c:684) 
[ 414.975147][ T12] ? process_one_work (kernel/workqueue.c:3238) 
[ 414.975467][ T12] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 414.975812][ T12] ? kthread (kernel/kthread.c:464) 
[ 414.976062][ T12] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 414.976382][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 414.976713][ T12] netif_set_mtu (net/core/dev.c:9652) 
[ 414.977058][ T12] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 414.977401][ T12] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 414.977645][ T12] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 414.977995][ T12] br_del_if (net/bridge/br_if.c:743) 
[ 414.978247][ T12] br_device_event (net/bridge/br.c:141) 
[ 414.978572][ T12] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 414.978928][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 414.979255][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 414.979662][ T12] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 414.980123][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 414.980536][ T12] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 414.980908][ T12] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 414.981326][ T12] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 414.981761][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 414.982095][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 414.982501][ T12] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 414.982848][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 414.983257][ T12] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 414.983664][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 414.984095][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 414.984508][ T12] default_device_exit_batch (net/core/dev.c:12673) 
[ 414.984856][ T12] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 414.985266][ T12] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 414.985604][ T12] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 414.985949][ T12] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 414.986280][ T12] cleanup_net (net/core/net_namespace.c:684) 
[ 414.986607][ T12] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 414.986955][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 414.987284][ T12] process_one_work (kernel/workqueue.c:3238) 
[ 414.987617][ T12] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 414.987969][ T12] ? assign_work (kernel/workqueue.c:1200) 
[ 414.988302][ T12] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 414.988632][ T12] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 414.988981][ T12] kthread (kernel/kthread.c:464) 
[ 414.989227][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 414.989547][ T12] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 414.989897][ T12] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 414.990223][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 414.990542][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 414.990888][ T12] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 414.991213][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 414.991531][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  415.018946][   T12] ------------[ cut here ]------------
| [ 415.019386][ T12] WARNING: CPU: 3 PID: 12 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) 
| [  415.019948][   T12] Modules linked in: vxlan
| [  415.021012][   T12] Tainted: [W]=WARN
[  415.021252][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  415.021723][   T12] Workqueue: netns cleanup_net
[ 415.022132][ T12] 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) 
[ 415.022517][ T12] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  415.023736][   T12] RSP: 0000:ffffc900000c7360 EFLAGS: 00010246
[  415.024186][   T12] RAX: 0000000000000000 RBX: ffff8880140fa000 RCX: 0000000000000001
[  415.024729][   T12] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  415.025211][   T12] RBP: ffffc900000c7450 R08: 0000000000000000 R09: 0000000000000000
[  415.025690][   T12] R10: ffffc900000c7480 R11: ffffffffa478d1e0 R12: 1ffff92000018e70
[  415.026311][   T12] R13: 00000000000005dc R14: ffffc900000c7480 R15: ffff8880140faf48
[  415.026960][   T12] FS:  0000000000000000(0000) GS:ffff8880c6d19000(0000) knlGS:0000000000000000
[  415.027539][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  415.028088][   T12] CR2: 0000000000406141 CR3: 000000000e54a006 CR4: 0000000000772ef0
[  415.028566][   T12] PKRU: 55555554
[  415.028953][   T12] Call Trace:
[  415.029189][   T12]  <TASK>
[ 415.029344][ T12] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 415.029652][ T12] ? __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) 
[ 415.030186][ T12] ? br_del_if (net/bridge/br_if.c:742) 
[ 415.030425][ T12] ? br_device_event (net/bridge/br.c:141) 
[ 415.030742][ T12] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 415.031273][ T12] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 415.031585][ T12] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 415.032132][ T12] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 415.032518][ T12] ? ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 415.032978][ T12] ? cleanup_net (net/core/net_namespace.c:684) 
[ 415.033375][ T12] ? process_one_work (kernel/workqueue.c:3238) 
[ 415.033704][ T12] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 415.034190][ T12] ? kthread (kernel/kthread.c:464) 
[ 415.034426][ T12] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 415.034733][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 415.035304][ T12] netif_set_mtu (net/core/dev.c:9652) 
[ 415.035624][ T12] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 415.036163][ T12] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 415.036456][ T12] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 415.037006][ T12] br_del_if (net/bridge/br_if.c:743) 
[ 415.037336][ T12] br_device_event (net/bridge/br.c:141) 
[ 415.037660][ T12] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 415.038211][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 415.038551][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 415.039200][ T12] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 415.039626][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 415.040273][ T12] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 415.040636][ T12] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 415.041303][ T12] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 415.041982][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 415.042391][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 415.043063][ T12] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 415.043474][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 415.044171][ T12] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 415.044692][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 415.045526][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 415.046203][ T12] default_device_exit_batch (net/core/dev.c:12673) 
[ 415.046588][ T12] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 415.047222][ T12] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 415.047616][ T12] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 415.048009][ T12] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 415.048393][ T12] cleanup_net (net/core/net_namespace.c:684) 
[ 415.048798][ T12] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 415.049163][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 415.049534][ T12] process_one_work (kernel/workqueue.c:3238) 
[ 415.049927][ T12] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 415.050306][ T12] ? assign_work (kernel/workqueue.c:1200) 
[ 415.050659][ T12] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 415.051051][ T12] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 415.051425][ T12] kthread (kernel/kthread.c:464) 
[ 415.051730][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 415.052137][ T12] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 415.052507][ T12] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 415.052910][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 415.053273][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 415.053649][ T12] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 415.054034][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 415.054399][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  436.321592][ T3895] ------------[ cut here ]------------
| [ 436.321923][ T3895] WARNING: CPU: 2 PID: 3895 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) 
| [  436.322528][ T3895] Modules linked in: vxlan
| [  436.323489][ T3895] Tainted: [W]=WARN
[  436.323735][ T3895] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 436.324152][ T3895] 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) 
[ 436.324477][ T3895] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  436.325578][ T3895] RSP: 0018:ffffc90002df6ef0 EFLAGS: 00010246
[  436.325998][ T3895] RAX: 0000000000000000 RBX: ffff888016372000 RCX: 0000000000000001
[  436.326458][ T3895] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  436.326940][ T3895] RBP: ffffc90002df6fd8 R08: 0000000000000000 R09: 0000000000000000
[  436.327422][ T3895] R10: ffffc90002df7008 R11: ffffffffa478d1e0 R12: 1ffff920005bede2
[  436.327902][ T3895] R13: 00000000000005dc R14: ffffc90002df7008 R15: ffff888016372f48
[  436.328382][ T3895] FS:  00007f90c4b0d800(0000) GS:ffff8880c6c99000(0000) knlGS:0000000000000000
[  436.328942][ T3895] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  436.329337][ T3895] CR2: 00000000004e6890 CR3: 00000000157e2006 CR4: 0000000000772ef0
[  436.329817][ T3895] PKRU: 55555554
[  436.330068][ T3895] Call Trace:
[  436.330305][ T3895]  <TASK>
[ 436.330472][ T3895] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 436.330817][ T3895] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 436.331143][ T3895] netif_set_mtu (net/core/dev.c:9652) 
[ 436.331462][ T3895] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 436.331808][ T3895] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 436.332049][ T3895] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 436.332385][ T3895] br_add_if (net/bridge/br_if.c:697) 
[ 436.332632][ T3895] do_set_master (net/core/rtnetlink.c:2948) 
[ 436.332967][ T3895] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 436.333283][ T3895] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 436.333623][ T3895] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 436.334023][ T3895] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 436.334348][ T3895] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 436.334668][ T3895] ? __kernel_text_address (kernel/extable.c:79) 
[ 436.335025][ T3895] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 436.335339][ T3895] ? __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) 
[ 436.335667][ T3895] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 436.336058][ T3895] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 436.336372][ T3895] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 436.336679][ T3895] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 436.337007][ T3895] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 436.337320][ T3895] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 436.337640][ T3895] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 436.337974][ T3895] ? __create_object (mm/kmemleak.c:771) 
[ 436.338287][ T3895] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 436.338598][ T3895] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 436.338921][ T3895] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 436.339304][ T3895] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 436.339630][ T3895] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 436.339956][ T3895] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 436.340268][ T3895] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 436.340585][ T3895] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 436.340906][ T3895] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 436.341214][ T3895] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 436.341527][ T3895] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 436.341857][ T3895] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 436.342175][ T3895] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 436.342492][ T3895] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 436.342816][ T3895] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 436.343128][ T3895] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 436.343440][ T3895] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 436.343787][ T3895] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 436.344095][ T3895] ? 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) 
[ 436.344414][ T3895] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 436.344725][ T3895] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 436.345044][ T3895] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 436.345357][ T3895] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 436.345687][ T3895] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 436.346010][ T3895] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 436.346331][ T3895] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 436.346648][ T3895] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 436.346967][ T3895] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 436.347359][ T3895] ___sys_sendmsg (net/socket.c:2670) 
[ 436.347670][ T3895] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 436.347987][ T3895] ? __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) 
[ 436.348371][ T3895] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 436.348686][ T3895] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 436.349032][ T3895] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 436.349362][ T3895] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 436.349689][ T3895] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 436.350008][ T3895] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 436.350326][ T3895] __sys_sendmsg (net/socket.c:2700) 
[ 436.350635][ T3895] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 436.351030][ T3895] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 436.351359][ T3895] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 436.351668][ T3895] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 436.351988][ T3895] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  436.352369][ T3895] RIP: 0033:0x7f90c4cda1e7
[ 436.352689][ T3895] 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)
[  436.353786][ T3895] RSP: 002b:00007ffd250e75b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  436.354266][ T3895] RAX: ffffffffffffffda RBX: 00007ffd250e7cf0 RCX: 00007f90c4cda1e7
[  436.354737][ T3895] RDX: 0000000000000000 RSI: 00007ffd250e7620 RDI: 0000000000000005
[  436.355231][ T3895] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  436.355706][ T3895] R10: 000000001b828910 R11: 0000000000000246 R12: 0000000000000003
[  436.356175][ T3895] R13: 00000000686e45fe R14: 0000000000499600 R15: 0000000000000000
| [  437.871945][ T3921] ------------[ cut here ]------------
| [ 437.872254][ T3921] WARNING: CPU: 3 PID: 3921 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) 
| [  437.872850][ T3921] Modules linked in: vxlan
| [  437.873800][ T3921] Tainted: [W]=WARN
[  437.874050][ T3921] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 437.874422][ T3921] 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) 
[ 437.874728][ T3921] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  437.875821][ T3921] RSP: 0018:ffffc90002ef6ef0 EFLAGS: 00010246
[  437.876223][ T3921] RAX: 0000000000000000 RBX: ffff888016372000 RCX: 0000000000000001
[  437.876672][ T3921] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  437.877144][ T3921] RBP: ffffc90002ef6fd8 R08: 0000000000000000 R09: 0000000000000000
[  437.877593][ T3921] R10: ffffc90002ef7008 R11: ffffffffa50ceab8 R12: 1ffff920005dede2
[  437.878055][ T3921] R13: 00000000000005aa R14: ffffc90002ef7008 R15: ffff888016372f48
[  437.878519][ T3921] FS:  00007f06326b4800(0000) GS:ffff8880c6d19000(0000) knlGS:0000000000000000
[  437.879051][ T3921] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  437.879443][ T3921] CR2: 00000000004e6890 CR3: 0000000018285002 CR4: 0000000000772ef0
[  437.879904][ T3921] PKRU: 55555554
[  437.880148][ T3921] Call Trace:
[  437.880373][ T3921]  <TASK>
[ 437.880528][ T3921] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 437.880860][ T3921] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 437.881172][ T3921] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 437.881547][ T3921] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 437.881968][ T3921] netif_set_mtu (net/core/dev.c:9652) 
[ 437.882287][ T3921] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 437.882600][ T3921] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 437.882980][ T3921] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 437.883217][ T3921] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 437.883535][ T3921] br_add_if (net/bridge/br_if.c:697) 
[ 437.883781][ T3921] do_set_master (net/core/rtnetlink.c:2948) 
[ 437.884074][ T3921] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 437.884387][ T3921] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 437.884699][ T3921] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 437.885082][ T3921] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 437.885394][ T3921] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 437.885687][ T3921] ? __kernel_text_address (kernel/extable.c:79) 
[ 437.885997][ T3921] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 437.886308][ T3921] ? __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) 
[ 437.886605][ T3921] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 437.886988][ T3921] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 437.887303][ T3921] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 437.887598][ T3921] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 437.887906][ T3921] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 437.888201][ T3921] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 437.888520][ T3921] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 437.888825][ T3921] ? __create_object (mm/kmemleak.c:771) 
[ 437.889121][ T3921] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 437.889438][ T3921] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 437.889737][ T3921] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 437.890117][ T3921] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 437.890436][ T3921] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 437.890736][ T3921] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 437.891042][ T3921] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 437.891345][ T3921] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 437.891664][ T3921] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 437.891970][ T3921] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 437.892267][ T3921] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 437.892573][ T3921] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 437.892878][ T3921] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 437.893181][ T3921] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 437.893505][ T3921] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 437.893824][ T3921] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 437.894129][ T3921] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 437.894435][ T3921] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 437.894760][ T3921] ? 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) 
[ 437.895057][ T3921] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 437.895355][ T3921] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 437.895662][ T3921] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 437.895974][ T3921] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 437.896281][ T3921] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 437.896593][ T3921] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 437.896905][ T3921] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 437.897236][ T3921] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 437.897544][ T3921] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 437.897947][ T3921] ___sys_sendmsg (net/socket.c:2670) 
[ 437.898247][ T3921] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 437.898550][ T3921] ? __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) 
[ 437.898953][ T3921] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 437.899258][ T3921] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 437.899564][ T3921] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 437.899894][ T3921] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 437.900194][ T3921] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 437.900492][ T3921] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 437.900829][ T3921] __sys_sendmsg (net/socket.c:2700) 
[ 437.901127][ T3921] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 437.901503][ T3921] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 437.901840][ T3921] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 437.902145][ T3921] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 437.902444][ T3921] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  437.902841][ T3921] RIP: 0033:0x7f06328811e7
[ 437.903158][ T3921] 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)
[  437.904260][ T3921] RSP: 002b:00007ffe415112a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  437.904724][ T3921] RAX: ffffffffffffffda RBX: 00007ffe415119e0 RCX: 00007f06328811e7
[  437.905192][ T3921] RDX: 0000000000000000 RSI: 00007ffe41511310 RDI: 0000000000000005
[  437.905639][ T3921] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  437.906113][ T3921] R10: 00000000154eb910 R11: 0000000000000246 R12: 0000000000000003
[  437.906561][ T3921] R13: 00000000686e4600 R14: 0000000000499600 R15: 0000000000000000
| [  441.613183][ T3972] ------------[ cut here ]------------
| [ 441.613524][ T3972] WARNING: CPU: 2 PID: 3972 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) 
| [  441.614332][ T3972] Modules linked in: vxlan
| [  441.615274][ T3972] Tainted: [W]=WARN
[  441.615509][ T3972] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 441.615899][ T3972] 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) 
[ 441.616221][ T3972] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  441.617309][ T3972] RSP: 0018:ffffc90003066ef0 EFLAGS: 00010246
[  441.617698][ T3972] RAX: 0000000000000000 RBX: ffff888005252000 RCX: 0000000000000001
[  441.618161][ T3972] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  441.618619][ T3972] RBP: ffffc90003066fd8 R08: 0000000000000000 R09: 0000000000000000
[  441.619088][ T3972] R10: ffffc90003067008 R11: ffffffffa478d1e0 R12: 1ffff9200060cde2
[  441.619549][ T3972] R13: 00000000000005dc R14: ffffc90003067008 R15: ffff888005252f48
[  441.620021][ T3972] FS:  00007f18e17db800(0000) GS:ffff8880c6c99000(0000) knlGS:0000000000000000
[  441.620555][ T3972] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  441.620962][ T3972] CR2: 00000000004e6898 CR3: 0000000018d71005 CR4: 0000000000772ef0
[  441.621421][ T3972] PKRU: 55555554
[  441.621678][ T3972] Call Trace:
[  441.621929][ T3972]  <TASK>
[ 441.622098][ T3972] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 441.622422][ T3972] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 441.622743][ T3972] netif_set_mtu (net/core/dev.c:9652) 
[ 441.623064][ T3972] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 441.623386][ T3972] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 441.623682][ T3972] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 441.624037][ T3972] br_add_if (net/bridge/br_if.c:697) 
[ 441.624302][ T3972] do_set_master (net/core/rtnetlink.c:2948) 
[ 441.624628][ T3972] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 441.624988][ T3972] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 441.625324][ T3972] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 441.625737][ T3972] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 441.626074][ T3972] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 441.626402][ T3972] ? __kernel_text_address (kernel/extable.c:79) 
[ 441.626731][ T3972] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 441.627084][ T3972] ? __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) 
[ 441.627416][ T3972] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 441.627829][ T3972] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 441.628157][ T3972] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 441.628482][ T3972] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 441.628830][ T3972] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 441.629157][ T3972] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 441.629483][ T3972] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 441.629824][ T3972] ? __create_object (mm/kmemleak.c:771) 
[ 441.630153][ T3972] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 441.630479][ T3972] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 441.630813][ T3972] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 441.631216][ T3972] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 441.631547][ T3972] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 441.631887][ T3972] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 441.632219][ T3972] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 441.632553][ T3972] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 441.632900][ T3972] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 441.633224][ T3972] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 441.633566][ T3972] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 441.633900][ T3972] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 441.634224][ T3972] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 441.634553][ T3972] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 441.634901][ T3972] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 441.635223][ T3972] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 441.635546][ T3972] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 441.635891][ T3972] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 441.636216][ T3972] ? 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) 
[ 441.636537][ T3972] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 441.636885][ T3972] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 441.637215][ T3972] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 441.637545][ T3972] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 441.637881][ T3972] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 441.638208][ T3972] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 441.638535][ T3972] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 441.638873][ T3972] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 441.639194][ T3972] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 441.639613][ T3972] ___sys_sendmsg (net/socket.c:2670) 
[ 441.639945][ T3972] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 441.640270][ T3972] ? __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) 
[ 441.640669][ T3972] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 441.641019][ T3972] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 441.641347][ T3972] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 441.641676][ T3972] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 441.642015][ T3972] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 441.642341][ T3972] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 441.642670][ T3972] __sys_sendmsg (net/socket.c:2700) 
[ 441.643005][ T3972] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 441.643404][ T3972] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 441.643812][ T3972] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 441.644137][ T3972] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 441.644465][ T3972] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  441.644890][ T3972] RIP: 0033:0x7f18e19a81e7
[ 441.645230][ T3972] 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)
[  441.646361][ T3972] RSP: 002b:00007ffe30f51e78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  441.646862][ T3972] RAX: ffffffffffffffda RBX: 00007ffe30f525b0 RCX: 00007f18e19a81e7
[  441.647338][ T3972] RDX: 0000000000000000 RSI: 00007ffe30f51ee0 RDI: 0000000000000005
[  441.647825][ T3972] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  441.648306][ T3972] R10: 000000000d945910 R11: 0000000000000246 R12: 0000000000000003
[  441.648803][ T3972] R13: 00000000686e4604 R14: 0000000000499600 R15: 0000000000000000
| [  443.221133][ T3998] ------------[ cut here ]------------
| [ 443.221450][ T3998] WARNING: CPU: 2 PID: 3998 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) 
| [  443.222121][ T3998] Modules linked in: vxlan
| [  443.223067][ T3998] Tainted: [W]=WARN
[  443.223304][ T3998] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 443.223693][ T3998] 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) 
[ 443.224036][ T3998] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  443.225138][ T3998] RSP: 0018:ffffc90003106ef0 EFLAGS: 00010246
[  443.225523][ T3998] RAX: 0000000000000000 RBX: ffff888005252000 RCX: 0000000000000001
[  443.226005][ T3998] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  443.226467][ T3998] RBP: ffffc90003106fd8 R08: 0000000000000000 R09: 0000000000000000
[  443.226943][ T3998] R10: ffffc90003107008 R11: ffffffffa50ceab8 R12: 1ffff92000620de2
[  443.227393][ T3998] R13: 0000000000000596 R14: ffffc90003107008 R15: ffff888005252f48
[  443.227866][ T3998] FS:  00007f8f867dc800(0000) GS:ffff8880c6c99000(0000) knlGS:0000000000000000
[  443.228401][ T3998] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  443.228806][ T3998] CR2: 00000000004e6898 CR3: 0000000018c31005 CR4: 0000000000772ef0
[  443.229263][ T3998] PKRU: 55555554
[  443.229495][ T3998] Call Trace:
[  443.229727][ T3998]  <TASK>
[ 443.229924][ T3998] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 443.230272][ T3998] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 443.230582][ T3998] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 443.230986][ T3998] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 443.231296][ T3998] netif_set_mtu (net/core/dev.c:9652) 
[ 443.231600][ T3998] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 443.231942][ T3998] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 443.232322][ T3998] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 443.232566][ T3998] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 443.232895][ T3998] br_add_if (net/bridge/br_if.c:697) 
[ 443.233141][ T3998] do_set_master (net/core/rtnetlink.c:2948) 
[ 443.233444][ T3998] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 443.233784][ T3998] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 443.234101][ T3998] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 443.234488][ T3998] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 443.234825][ T3998] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 443.235132][ T3998] ? __kernel_text_address (kernel/extable.c:79) 
[ 443.235441][ T3998] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 443.235772][ T3998] ? __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) 
[ 443.236082][ T3998] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 443.236461][ T3998] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 443.236791][ T3998] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 443.237099][ T3998] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 443.237411][ T3998] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 443.237717][ T3998] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 443.238052][ T3998] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 443.238359][ T3998] ? __create_object (mm/kmemleak.c:771) 
[ 443.238666][ T3998] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 443.239001][ T3998] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 443.239315][ T3998] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 443.239698][ T3998] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 443.240034][ T3998] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 443.240346][ T3998] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 443.240652][ T3998] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 443.240987][ T3998] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 443.241295][ T3998] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 443.241597][ T3998] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 443.241954][ T3998] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 443.242271][ T3998] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 443.242582][ T3998] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 443.242922][ T3998] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 443.243238][ T3998] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 443.243553][ T3998] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 443.243885][ T3998] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 443.244202][ T3998] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 443.244515][ T3998] ? 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) 
[ 443.244847][ T3998] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 443.245158][ T3998] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 443.245461][ T3998] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 443.245797][ T3998] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 443.246111][ T3998] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 443.246420][ T3998] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 443.246741][ T3998] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 443.247080][ T3998] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 443.247386][ T3998] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 443.247794][ T3998] ___sys_sendmsg (net/socket.c:2670) 
[ 443.248099][ T3998] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 443.248446][ T3998] ? __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) 
[ 443.248854][ T3998] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 443.249181][ T3998] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 443.249490][ T3998] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 443.249827][ T3998] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 443.250134][ T3998] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 443.250440][ T3998] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 443.250772][ T3998] __sys_sendmsg (net/socket.c:2700) 
[ 443.251086][ T3998] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 443.251461][ T3998] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 443.251811][ T3998] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 443.252119][ T3998] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 443.252427][ T3998] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  443.252824][ T3998] RIP: 0033:0x7f8f869a91e7
[ 443.253146][ T3998] 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)
[  443.254261][ T3998] RSP: 002b:00007ffc4779e748 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  443.254721][ T3998] RAX: ffffffffffffffda RBX: 00007ffc4779ee80 RCX: 00007f8f869a91e7
[  443.255205][ T3998] RDX: 0000000000000000 RSI: 00007ffc4779e7b0 RDI: 0000000000000005
[  443.255655][ T3998] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  443.256140][ T3998] R10: 000000003c392910 R11: 0000000000000246 R12: 0000000000000003
[  443.256600][ T3998] R13: 00000000686e4605 R14: 0000000000499600 R15: 0000000000000000
| [  446.991064][ T4048] ------------[ cut here ]------------
| [ 446.991448][ T4048] WARNING: CPU: 2 PID: 4048 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) 
| [  446.992146][ T4048] Modules linked in: vxlan
| [  446.993184][ T4048] Tainted: [W]=WARN
[  446.993441][ T4048] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 446.993880][ T4048] 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) 
[ 446.994225][ T4048] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  446.995377][ T4048] RSP: 0018:ffffc900032b6ef0 EFLAGS: 00010246
[  446.995840][ T4048] RAX: 0000000000000000 RBX: ffff8880146c2000 RCX: 0000000000000001
[  446.996351][ T4048] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  446.996879][ T4048] RBP: ffffc900032b6fd8 R08: 0000000000000000 R09: 0000000000000000
[  446.997377][ T4048] R10: ffffc900032b7008 R11: ffffffffa478d1e0 R12: 1ffff92000656de2
[  446.997884][ T4048] R13: 00000000000005dc R14: ffffc900032b7008 R15: ffff8880146c2f48
[  446.998396][ T4048] FS:  00007f7a91a59800(0000) GS:ffff8880c6c99000(0000) knlGS:0000000000000000
[  446.999003][ T4048] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  446.999420][ T4048] CR2: 00000000004e6890 CR3: 000000001672e001 CR4: 0000000000772ef0
[  446.999942][ T4048] PKRU: 55555554
[  447.000200][ T4048] Call Trace:
[  447.000452][ T4048]  <TASK>
[ 447.000626][ T4048] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 447.000975][ T4048] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 447.001322][ T4048] netif_set_mtu (net/core/dev.c:9652) 
[ 447.001644][ T4048] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 447.001997][ T4048] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 447.002271][ T4048] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 447.002609][ T4048] br_add_if (net/bridge/br_if.c:697) 
[ 447.002882][ T4048] do_set_master (net/core/rtnetlink.c:2948) 
[ 447.003204][ T4048] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 447.003544][ T4048] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 447.003924][ T4048] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 447.004346][ T4048] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 447.004682][ T4048] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 447.005029][ T4048] ? __kernel_text_address (kernel/extable.c:79) 
[ 447.005362][ T4048] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 447.005699][ T4048] ? __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) 
[ 447.006038][ T4048] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 447.006446][ T4048] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 447.006800][ T4048] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 447.007133][ T4048] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 447.007459][ T4048] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 447.007827][ T4048] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 447.008172][ T4048] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 447.008493][ T4048] ? __create_object (mm/kmemleak.c:771) 
[ 447.008852][ T4048] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 447.009178][ T4048] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 447.009486][ T4048] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 447.009872][ T4048] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 447.010190][ T4048] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 447.010503][ T4048] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 447.010819][ T4048] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 447.011131][ T4048] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 447.011460][ T4048] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 447.011800][ T4048] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 447.012110][ T4048] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 447.012416][ T4048] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 447.012724][ T4048] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 447.013044][ T4048] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 447.013358][ T4048] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 447.013676][ T4048] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 447.014003][ T4048] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 447.014325][ T4048] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 447.014631][ T4048] ? 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) 
[ 447.014950][ T4048] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 447.015261][ T4048] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 447.015566][ T4048] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 447.015905][ T4048] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 447.016221][ T4048] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 447.016540][ T4048] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 447.016867][ T4048] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 447.017178][ T4048] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 447.017484][ T4048] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 447.017895][ T4048] ___sys_sendmsg (net/socket.c:2670) 
[ 447.018205][ T4048] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 447.018513][ T4048] ? __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) 
[ 447.018918][ T4048] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 447.019240][ T4048] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 447.019551][ T4048] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 447.019904][ T4048] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 447.020230][ T4048] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 447.020552][ T4048] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 447.020903][ T4048] __sys_sendmsg (net/socket.c:2700) 
[ 447.021247][ T4048] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 447.021658][ T4048] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 447.022018][ T4048] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 447.022360][ T4048] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 447.022699][ T4048] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  447.023129][ T4048] RIP: 0033:0x7f7a91c261e7
[ 447.023483][ T4048] 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)
[  447.024647][ T4048] RSP: 002b:00007ffda9354a48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  447.025136][ T4048] RAX: ffffffffffffffda RBX: 00007ffda9355180 RCX: 00007f7a91c261e7
[  447.025637][ T4048] RDX: 0000000000000000 RSI: 00007ffda9354ab0 RDI: 0000000000000005
[  447.026148][ T4048] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  447.026646][ T4048] R10: 0000000019fcd910 R11: 0000000000000246 R12: 0000000000000003
[  447.027155][ T4048] R13: 00000000686e4609 R14: 0000000000499600 R15: 0000000000000000
| [  448.638076][ T4074] ------------[ cut here ]------------
| [ 448.638402][ T4074] WARNING: CPU: 1 PID: 4074 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) 
| [  448.639035][ T4074] Modules linked in: vxlan
| [  448.639990][ T4074] Tainted: [W]=WARN
[  448.640227][ T4074] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 448.640615][ T4074] 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) 
[ 448.640939][ T4074] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  448.642059][ T4074] RSP: 0018:ffffc90003346ef0 EFLAGS: 00010246
[  448.642453][ T4074] RAX: 0000000000000000 RBX: ffff8880146c2000 RCX: 0000000000000001
[  448.642924][ T4074] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  448.643398][ T4074] RBP: ffffc90003346fd8 R08: 0000000000000000 R09: 0000000000000000
[  448.643900][ T4074] R10: ffffc90003347008 R11: ffffffffa478d1e0 R12: 1ffff92000668de2
[  448.644367][ T4074] R13: 00000000000005aa R14: ffffc90003347008 R15: ffff8880146c2f48
[  448.644838][ T4074] FS:  00007fb1bc124800(0000) GS:ffff8880c6c19000(0000) knlGS:0000000000000000
[  448.645387][ T4074] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  448.645792][ T4074] CR2: 00000000004e6890 CR3: 0000000013330005 CR4: 0000000000772ef0
[  448.646265][ T4074] PKRU: 55555554
[  448.646498][ T4074] Call Trace:
[  448.646731][ T4074]  <TASK>
[ 448.646901][ T4074] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 448.647212][ T4074] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 448.647540][ T4074] netif_set_mtu (net/core/dev.c:9652) 
[ 448.647874][ T4074] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 448.648198][ T4074] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 448.648436][ T4074] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 448.648762][ T4074] br_add_if (net/bridge/br_if.c:697) 
[ 448.649006][ T4074] do_set_master (net/core/rtnetlink.c:2948) 
[ 448.649315][ T4074] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 448.649631][ T4074] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 448.650914][ T4074] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 448.651336][ T4074] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 448.651648][ T4074] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 448.651967][ T4074] ? __kernel_text_address (kernel/extable.c:79) 
[ 448.652284][ T4074] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 448.652602][ T4074] ? __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) 
[ 448.652929][ T4074] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 448.653319][ T4074] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 448.653651][ T4074] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 448.653971][ T4074] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 448.654282][ T4074] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 448.654593][ T4074] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 448.654916][ T4074] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 448.655226][ T4074] ? __create_object (mm/kmemleak.c:771) 
[ 448.655543][ T4074] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 448.655863][ T4074] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 448.656177][ T4074] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 448.656562][ T4074] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 448.656890][ T4074] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 448.657210][ T4074] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 448.657521][ T4074] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 448.657846][ T4074] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 448.658165][ T4074] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 448.658472][ T4074] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 448.658792][ T4074] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 448.659110][ T4074] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 448.659426][ T4074] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 448.659741][ T4074] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 448.660075][ T4074] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 448.660399][ T4074] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 448.660713][ T4074] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 448.661043][ T4074] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 448.661353][ T4074] ? 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) 
[ 448.661721][ T4074] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 448.662083][ T4074] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 448.662395][ T4074] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 448.662723][ T4074] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 448.663045][ T4074] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 448.663358][ T4074] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 448.663686][ T4074] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 448.664010][ T4074] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 448.664332][ T4074] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 448.664739][ T4074] ___sys_sendmsg (net/socket.c:2670) 
[ 448.665066][ T4074] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 448.665378][ T4074] ? __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) 
[ 448.665785][ T4074] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 448.666102][ T4074] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 448.666419][ T4074] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 448.666736][ T4074] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 448.667056][ T4074] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 448.667373][ T4074] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 448.667691][ T4074] __sys_sendmsg (net/socket.c:2700) 
[ 448.668010][ T4074] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 448.668396][ T4074] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 448.668716][ T4074] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 448.669040][ T4074] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 448.669350][ T4074] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  448.669733][ T4074] RIP: 0033:0x7fb1bc2f11e7
[ 448.670070][ T4074] 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)
[  448.671186][ T4074] RSP: 002b:00007ffe95b8a9e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  448.671655][ T4074] RAX: ffffffffffffffda RBX: 00007ffe95b8b120 RCX: 00007fb1bc2f11e7
[  448.672137][ T4074] RDX: 0000000000000000 RSI: 00007ffe95b8aa50 RDI: 0000000000000005
[  448.672606][ T4074] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  448.673078][ T4074] R10: 00000000298c4910 R11: 0000000000000246 R12: 0000000000000003
[  448.673554][ T4074] R13: 00000000686e460b R14: 0000000000499600 R15: 0000000000000000
| [  452.444009][ T4125] ------------[ cut here ]------------
| [ 452.444326][ T4125] WARNING: CPU: 2 PID: 4125 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) 
| [  452.444943][ T4125] Modules linked in: vxlan
| [  452.445887][ T4125] Tainted: [W]=WARN
[  452.446125][ T4125] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 452.446511][ T4125] 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) 
[ 452.446842][ T4125] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  452.447921][ T4125] RSP: 0018:ffffc900034c6ef0 EFLAGS: 00010246
[  452.448309][ T4125] RAX: 0000000000000000 RBX: ffff88801a382000 RCX: 0000000000000001
[  452.448784][ T4125] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  452.449246][ T4125] RBP: ffffc900034c6fd8 R08: 0000000000000000 R09: 0000000000000000
[  452.449704][ T4125] R10: ffffc900034c7008 R11: ffffffffa478d1e0 R12: 1ffff92000698de2
[  452.450184][ T4125] R13: 00000000000005dc R14: ffffc900034c7008 R15: ffff88801a382f48
[  452.450639][ T4125] FS:  00007f143234e800(0000) GS:ffff8880c6c99000(0000) knlGS:0000000000000000
[  452.451178][ T4125] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  452.451567][ T4125] CR2: 00000000004e6898 CR3: 0000000018572001 CR4: 0000000000772ef0
[  452.452043][ T4125] PKRU: 55555554
[  452.452323][ T4125] Call Trace:
[  452.452569][ T4125]  <TASK>
[ 452.452742][ T4125] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 452.453076][ T4125] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 452.453413][ T4125] netif_set_mtu (net/core/dev.c:9652) 
[ 452.453765][ T4125] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 452.454106][ T4125] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 452.454356][ T4125] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 452.454687][ T4125] br_add_if (net/bridge/br_if.c:697) 
[ 452.454956][ T4125] do_set_master (net/core/rtnetlink.c:2948) 
[ 452.455275][ T4125] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 452.455601][ T4125] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 452.455951][ T4125] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 452.456359][ T4125] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 452.456681][ T4125] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 452.457020][ T4125] ? __kernel_text_address (kernel/extable.c:79) 
[ 452.457347][ T4125] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 452.457677][ T4125] ? __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) 
[ 452.458010][ T4125] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 452.458409][ T4125] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 452.458732][ T4125] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 452.459063][ T4125] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 452.459391][ T4125] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 452.459717][ T4125] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 452.460056][ T4125] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 452.460379][ T4125] ? __create_object (mm/kmemleak.c:771) 
[ 452.460700][ T4125] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 452.461033][ T4125] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 452.461355][ T4125] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 452.461768][ T4125] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 452.462103][ T4125] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 452.462438][ T4125] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 452.462773][ T4125] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 452.463106][ T4125] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 452.463427][ T4125] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 452.463768][ T4125] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 452.464093][ T4125] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 452.464424][ T4125] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 452.464755][ T4125] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 452.465083][ T4125] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 452.465411][ T4125] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 452.465733][ T4125] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 452.466065][ T4125] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 452.466399][ T4125] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 452.466727][ T4125] ? 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) 
[ 452.467062][ T4125] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 452.467388][ T4125] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 452.467706][ T4125] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 452.468044][ T4125] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 452.468373][ T4125] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 452.468695][ T4125] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 452.469031][ T4125] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 452.469369][ T4125] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 452.469691][ T4125] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 452.470111][ T4125] ___sys_sendmsg (net/socket.c:2670) 
[ 452.470435][ T4125] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 452.470766][ T4125] ? __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) 
[ 452.471164][ T4125] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 452.471500][ T4125] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 452.471836][ T4125] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 452.472170][ T4125] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 452.472492][ T4125] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 452.472829][ T4125] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 452.473161][ T4125] __sys_sendmsg (net/socket.c:2700) 
[ 452.473488][ T4125] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 452.473918][ T4125] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 452.474267][ T4125] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 452.474589][ T4125] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 452.474925][ T4125] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  452.475319][ T4125] RIP: 0033:0x7f143251b1e7
[ 452.475657][ T4125] 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)
[  452.476792][ T4125] RSP: 002b:00007ffc0bbd17e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  452.477274][ T4125] RAX: ffffffffffffffda RBX: 00007ffc0bbd1f20 RCX: 00007f143251b1e7
[  452.477757][ T4125] RDX: 0000000000000000 RSI: 00007ffc0bbd1850 RDI: 0000000000000005
[  452.478236][ T4125] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  452.478723][ T4125] R10: 0000000025dbc910 R11: 0000000000000246 R12: 0000000000000003
[  452.479211][ T4125] R13: 00000000686e460e R14: 0000000000499600 R15: 0000000000000000
| [  454.047173][ T4151] ------------[ cut here ]------------
| [ 454.047465][ T4151] WARNING: CPU: 0 PID: 4151 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) 
| [  454.048053][ T4151] Modules linked in: vxlan
| [  454.049619][ T4151] Tainted: [W]=WARN
[  454.049860][ T4151] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 454.050225][ T4151] 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) 
[ 454.050526][ T4151] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  454.051575][ T4151] RSP: 0018:ffffc90003596ef0 EFLAGS: 00010246
[  454.051962][ T4151] RAX: 0000000000000000 RBX: ffff88801a382000 RCX: 0000000000000001
[  454.052401][ T4151] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  454.052849][ T4151] RBP: ffffc90003596fd8 R08: 0000000000000000 R09: 0000000000000000
[  454.053287][ T4151] R10: ffffc90003597008 R11: ffffffffa478d1e0 R12: 1ffff920006b2de2
[  454.053758][ T4151] R13: 0000000000000596 R14: ffffc90003597008 R15: ffff88801a382f48
[  454.054198][ T4151] FS:  00007fc183c2a800(0000) GS:ffff8880c6b99000(0000) knlGS:0000000000000000
[  454.054711][ T4151] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  454.055087][ T4151] CR2: 00000000004e6898 CR3: 000000001654b006 CR4: 0000000000772ef0
[  454.055535][ T4151] PKRU: 55555554
[  454.055766][ T4151] Call Trace:
[  454.055985][ T4151]  <TASK>
[ 454.056137][ T4151] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 454.056431][ T4151] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 454.056737][ T4151] netif_set_mtu (net/core/dev.c:9652) 
[ 454.057039][ T4151] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 454.057349][ T4151] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 454.057574][ T4151] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 454.057888][ T4151] br_add_if (net/bridge/br_if.c:697) 
[ 454.058122][ T4151] do_set_master (net/core/rtnetlink.c:2948) 
[ 454.058414][ T4151] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 454.058718][ T4151] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 454.059026][ T4151] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 454.059398][ T4151] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 454.059690][ T4151] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 454.059998][ T4151] ? __kernel_text_address (kernel/extable.c:79) 
[ 454.060296][ T4151] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 454.060607][ T4151] ? __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) 
[ 454.060911][ T4151] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 454.061277][ T4151] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 454.061574][ T4151] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 454.061875][ T4151] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 454.062172][ T4151] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 454.062470][ T4151] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 454.062779][ T4151] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 454.063071][ T4151] ? __create_object (mm/kmemleak.c:771) 
[ 454.063366][ T4151] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 454.063670][ T4151] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 454.063990][ T4151] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 454.064354][ T4151] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 454.064657][ T4151] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 454.064966][ T4151] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 454.065258][ T4151] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 454.065560][ T4151] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 454.065864][ T4151] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 454.066157][ T4151] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 454.066484][ T4151] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 454.066806][ T4151] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 454.067107][ T4151] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 454.067407][ T4151] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 454.067710][ T4151] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 454.068016][ T4151] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 454.068327][ T4151] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 454.068632][ T4151] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 454.068948][ T4151] ? 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) 
[ 454.069253][ T4151] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 454.069554][ T4151] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 454.069855][ T4151] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 454.070159][ T4151] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 454.070473][ T4151] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 454.070779][ T4151] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 454.071082][ T4151] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 454.071386][ T4151] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 454.071679][ T4151] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 454.072065][ T4151] ___sys_sendmsg (net/socket.c:2670) 
[ 454.072362][ T4151] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 454.072653][ T4151] ? __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) 
[ 454.073030][ T4151] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 454.073328][ T4151] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 454.073638][ T4151] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 454.073946][ T4151] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 454.074245][ T4151] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 454.074539][ T4151] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 454.074854][ T4151] __sys_sendmsg (net/socket.c:2700) 
[ 454.075148][ T4151] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 454.075514][ T4151] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 454.075833][ T4151] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 454.076134][ T4151] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 454.076430][ T4151] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  454.076802][ T4151] RIP: 0033:0x7fc183df71e7
[ 454.077108][ T4151] 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)
[  454.078182][ T4151] RSP: 002b:00007fff82f5db08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  454.078625][ T4151] RAX: ffffffffffffffda RBX: 00007fff82f5e240 RCX: 00007fc183df71e7
[  454.079071][ T4151] RDX: 0000000000000000 RSI: 00007fff82f5db70 RDI: 0000000000000005
[  454.079510][ T4151] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  454.079963][ T4151] R10: 000000001a729910 R11: 0000000000000246 R12: 0000000000000003
[  454.080403][ T4151] R13: 00000000686e4610 R14: 0000000000499600 R15: 0000000000000000
| [  458.917806][   T12] ------------[ cut here ]------------
| [ 458.918335][ T12] WARNING: CPU: 0 PID: 12 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) 
| [  458.919254][   T12] Modules linked in: vxlan
| [  458.922638][   T12] Tainted: [W]=WARN
[  458.923082][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  458.923795][   T12] Workqueue: netns cleanup_net
[ 458.924375][ T12] 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) 
[ 458.924968][ T12] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  458.926911][   T12] RSP: 0018:ffffc900000c7360 EFLAGS: 00010246
[  458.927603][   T12] RAX: 0000000000000000 RBX: ffff88801a382000 RCX: 0000000000000001
[  458.928435][   T12] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  458.929272][   T12] RBP: ffffc900000c7450 R08: 0000000000000000 R09: 0000000000000000
[  458.930104][   T12] R10: ffffc900000c7480 R11: ffffffffa478d1e0 R12: 1ffff92000018e70
[  458.930932][   T12] R13: 00000000000005dc R14: ffffc900000c7480 R15: ffff88801a382f48
[  458.931730][   T12] FS:  0000000000000000(0000) GS:ffff8880c6b99000(0000) knlGS:0000000000000000
[  458.932710][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  458.933407][   T12] CR2: 000056398ff849a8 CR3: 000000000e54a004 CR4: 0000000000772ef0
[  458.934266][   T12] PKRU: 55555554
[  458.934689][   T12] Call Trace:
[  458.935113][   T12]  <TASK>
[ 458.935388][ T12] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 458.935945][ T12] ? __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) 
[ 458.936633][ T12] ? br_del_if (net/bridge/br_if.c:742) 
[ 458.937035][ T12] ? br_device_event (net/bridge/br.c:141) 
[ 458.937559][ T12] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 458.938101][ T12] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 458.938648][ T12] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 458.939334][ T12] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 458.940027][ T12] ? ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 458.940562][ T12] ? cleanup_net (net/core/net_namespace.c:684) 
[ 458.941104][ T12] ? process_one_work (kernel/workqueue.c:3238) 
[ 458.941640][ T12] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 458.942188][ T12] ? kthread (kernel/kthread.c:464) 
[ 458.942595][ T12] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 458.943145][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 458.943727][ T12] netif_set_mtu (net/core/dev.c:9652) 
[ 458.944295][ T12] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 458.944886][ T12] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 458.945292][ T12] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 458.945790][ T12] br_del_if (net/bridge/br_if.c:743) 
[ 458.946187][ T12] br_device_event (net/bridge/br.c:141) 
[ 458.946716][ T12] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 458.947279][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 458.947851][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 458.948519][ T12] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 458.949226][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 458.949922][ T12] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 458.950434][ T12] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 458.951124][ T12] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 458.951842][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 458.952388][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 458.953058][ T12] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 458.953585][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 458.954253][ T12] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 458.954937][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 458.956009][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 458.957520][ T12] default_device_exit_batch (net/core/dev.c:12673) 
[ 458.958044][ T12] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 458.959120][ T12] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 458.959663][ T12] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 458.960197][ T12] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 458.960742][ T12] cleanup_net (net/core/net_namespace.c:684) 
[ 458.961307][ T12] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 458.961868][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 458.962390][ T12] process_one_work (kernel/workqueue.c:3238) 
[ 458.962951][ T12] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 458.963493][ T12] ? assign_work (kernel/workqueue.c:1200) 
[ 458.964030][ T12] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 458.964738][ T12] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 458.965133][ T12] kthread (kernel/kthread.c:464) 
[ 458.965385][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 458.965779][ T12] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 458.966340][ T12] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 458.966649][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 458.966968][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 458.967374][ T12] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 458.967979][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 458.968381][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  459.002999][   T12] ------------[ cut here ]------------
| [ 459.003453][ T12] WARNING: CPU: 0 PID: 12 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) 
| [  459.004672][   T12] Modules linked in: vxlan
| [  459.005691][   T12] Tainted: [W]=WARN
[  459.005938][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  459.006323][   T12] Workqueue: netns cleanup_net
[ 459.006641][ T12] 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) 
[ 459.006976][ T12] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  459.008301][   T12] RSP: 0018:ffffc900000c7360 EFLAGS: 00010246
[  459.008690][   T12] RAX: 0000000000000000 RBX: ffff8880146c2000 RCX: 0000000000000001
[  459.009306][   T12] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  459.010091][   T12] RBP: ffffc900000c7450 R08: 0000000000000000 R09: 0000000000000000
[  459.010549][   T12] R10: ffffc900000c7480 R11: ffffffffa478d1e0 R12: 1ffff92000018e70
[  459.011290][   T12] R13: 00000000000005dc R14: ffffc900000c7480 R15: ffff8880146c2f48
[  459.011863][   T12] FS:  0000000000000000(0000) GS:ffff8880c6b99000(0000) knlGS:0000000000000000
[  459.012400][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  459.012793][   T12] CR2: 000056398ff849a8 CR3: 000000000e54a004 CR4: 0000000000772ef0
[  459.013266][   T12] PKRU: 55555554
[  459.013506][   T12] Call Trace:
[  459.013743][   T12]  <TASK>
[ 459.013907][ T12] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 459.014213][ T12] ? __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) 
[ 459.014590][ T12] ? br_del_if (net/bridge/br_if.c:742) 
[ 459.014833][ T12] ? br_device_event (net/bridge/br.c:141) 
[ 459.015138][ T12] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 459.015442][ T12] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 459.015763][ T12] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 459.016141][ T12] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 459.016520][ T12] ? ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 459.016835][ T12] ? cleanup_net (net/core/net_namespace.c:684) 
[ 459.017138][ T12] ? process_one_work (kernel/workqueue.c:3238) 
[ 459.017442][ T12] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 459.017752][ T12] ? kthread (kernel/kthread.c:464) 
[ 459.017986][ T12] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 459.018295][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 459.018621][ T12] netif_set_mtu (net/core/dev.c:9652) 
[ 459.018935][ T12] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 459.019261][ T12] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 459.019498][ T12] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 459.019818][ T12] br_del_if (net/bridge/br_if.c:743) 
[ 459.020052][ T12] br_device_event (net/bridge/br.c:141) 
[ 459.020357][ T12] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 459.020675][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 459.020998][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 459.021385][ T12] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 459.021790][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 459.022179][ T12] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 459.022500][ T12] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 459.022907][ T12] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 459.023308][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 459.023637][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 459.024035][ T12] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 459.024345][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 459.024724][ T12] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 459.025115][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 459.025496][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 459.025892][ T12] default_device_exit_batch (net/core/dev.c:12673) 
[ 459.026198][ T12] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 459.026583][ T12] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 459.026902][ T12] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 459.027206][ T12] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 459.027522][ T12] cleanup_net (net/core/net_namespace.c:684) 
[ 459.027840][ T12] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 459.028150][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 459.028462][ T12] process_one_work (kernel/workqueue.c:3238) 
[ 459.028785][ T12] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 459.029103][ T12] ? assign_work (kernel/workqueue.c:1200) 
[ 459.029413][ T12] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 459.029726][ T12] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 459.030045][ T12] kthread (kernel/kthread.c:464) 
[ 459.030281][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 459.030584][ T12] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 459.030896][ T12] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 459.031208][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 459.031512][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 459.031828][ T12] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 459.032133][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 459.032445][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  480.154398][ T4392] ------------[ cut here ]------------
| [ 480.154738][ T4392] WARNING: CPU: 2 PID: 4392 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) 
| [  480.155362][ T4392] Modules linked in: vxlan
| [  480.156308][ T4392] Tainted: [W]=WARN
[  480.156552][ T4392] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 480.156943][ T4392] 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) 
[ 480.157267][ T4392] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  480.158360][ T4392] RSP: 0018:ffffc90003f36ef0 EFLAGS: 00010246
[  480.158760][ T4392] RAX: 0000000000000000 RBX: ffff888012fea000 RCX: 0000000000000001
[  480.159216][ T4392] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  480.159673][ T4392] RBP: ffffc90003f36fd8 R08: 0000000000000000 R09: 0000000000000000
[  480.160147][ T4392] R10: ffffc90003f37008 R11: ffffffffa478d1e0 R12: 1ffff920007e6de2
[  480.160612][ T4392] R13: 00000000000005dc R14: ffffc90003f37008 R15: ffff888012feaf48
[  480.161095][ T4392] FS:  00007fb38aa36800(0000) GS:ffff8880c6c99000(0000) knlGS:0000000000000000
[  480.161643][ T4392] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  480.162039][ T4392] CR2: 00000000004e6890 CR3: 000000001621e001 CR4: 0000000000772ef0
[  480.162507][ T4392] PKRU: 55555554
[  480.162772][ T4392] Call Trace:
[  480.163007][ T4392]  <TASK>
[ 480.163179][ T4392] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 480.163489][ T4392] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 480.163855][ T4392] netif_set_mtu (net/core/dev.c:9652) 
[ 480.164171][ T4392] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 480.164502][ T4392] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 480.164761][ T4392] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 480.165082][ T4392] br_add_if (net/bridge/br_if.c:697) 
[ 480.165349][ T4392] do_set_master (net/core/rtnetlink.c:2948) 
[ 480.165660][ T4392] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 480.165982][ T4392] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 480.166302][ T4392] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 480.166693][ T4392] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 480.167012][ T4392] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 480.167332][ T4392] ? __kernel_text_address (kernel/extable.c:79) 
[ 480.167667][ T4392] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 480.167992][ T4392] ? __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) 
[ 480.168309][ T4392] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 480.168698][ T4392] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 480.169015][ T4392] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 480.169323][ T4392] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 480.169629][ T4392] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 480.169960][ T4392] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 480.170269][ T4392] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 480.170589][ T4392] ? __create_object (mm/kmemleak.c:771) 
[ 480.170907][ T4392] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 480.171237][ T4392] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 480.171557][ T4392] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 480.171961][ T4392] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 480.172291][ T4392] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 480.172607][ T4392] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 480.172936][ T4392] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 480.173250][ T4392] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 480.173587][ T4392] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 480.173924][ T4392] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 480.174246][ T4392] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 480.174569][ T4392] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 480.174915][ T4392] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 480.175236][ T4392] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 480.175553][ T4392] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 480.175881][ T4392] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 480.176191][ T4392] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 480.176506][ T4392] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 480.176825][ T4392] ? 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) 
[ 480.177152][ T4392] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 480.177471][ T4392] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 480.177798][ T4392] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 480.178124][ T4392] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 480.178444][ T4392] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 480.178805][ T4392] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 480.179123][ T4392] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 480.179439][ T4392] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 480.179775][ T4392] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 480.180166][ T4392] ___sys_sendmsg (net/socket.c:2670) 
[ 480.180470][ T4392] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 480.180786][ T4392] ? __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) 
[ 480.181177][ T4392] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 480.181504][ T4392] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 480.181845][ T4392] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 480.182178][ T4392] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 480.182496][ T4392] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 480.182827][ T4392] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 480.183144][ T4392] __sys_sendmsg (net/socket.c:2700) 
[ 480.183450][ T4392] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 480.183858][ T4392] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 480.184182][ T4392] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 480.184516][ T4392] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 480.184837][ T4392] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  480.185230][ T4392] RIP: 0033:0x7fb38ac031e7
[ 480.185554][ T4392] 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)
[  480.186673][ T4392] RSP: 002b:00007ffccb272a38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  480.187144][ T4392] RAX: ffffffffffffffda RBX: 00007ffccb273170 RCX: 00007fb38ac031e7
[  480.187605][ T4392] RDX: 0000000000000000 RSI: 00007ffccb272aa0 RDI: 0000000000000005
[  480.188067][ T4392] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  480.188536][ T4392] R10: 0000000010faa910 R11: 0000000000000246 R12: 0000000000000003
[  480.189004][ T4392] R13: 00000000686e462a R14: 0000000000499600 R15: 0000000000000000
| [  481.654310][ T4418] ------------[ cut here ]------------
| [ 481.654605][ T4418] WARNING: CPU: 0 PID: 4418 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) 
| [  481.655192][ T4418] Modules linked in: vxlan
| [  481.656189][ T4418] Tainted: [W]=WARN
[  481.656413][ T4418] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 481.656791][ T4418] 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) 
[ 481.657093][ T4418] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  481.658149][ T4418] RSP: 0018:ffffc90003fd6ef0 EFLAGS: 00010246
[  481.658534][ T4418] RAX: 0000000000000000 RBX: ffff888012fea000 RCX: 0000000000000001
[  481.658981][ T4418] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  481.659424][ T4418] RBP: ffffc90003fd6fd8 R08: 0000000000000000 R09: 0000000000000000
[  481.659891][ T4418] R10: ffffc90003fd7008 R11: ffffffffa50ceab8 R12: 1ffff920007fade2
[  481.660355][ T4418] R13: 00000000000005aa R14: ffffc90003fd7008 R15: ffff888012feaf48
[  481.660832][ T4418] FS:  00007fea16188800(0000) GS:ffff8880c6b99000(0000) knlGS:0000000000000000
[  481.661374][ T4418] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  481.661774][ T4418] CR2: 00000000004e6890 CR3: 0000000018e8a002 CR4: 0000000000772ef0
[  481.662244][ T4418] PKRU: 55555554
[  481.662480][ T4418] Call Trace:
[  481.662700][ T4418]  <TASK>
[ 481.662858][ T4418] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 481.663157][ T4418] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 481.663451][ T4418] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 481.663832][ T4418] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 481.664128][ T4418] netif_set_mtu (net/core/dev.c:9652) 
[ 481.664421][ T4418] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 481.664729][ T4418] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 481.665105][ T4418] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 481.665330][ T4418] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 481.665627][ T4418] br_add_if (net/bridge/br_if.c:697) 
[ 481.665868][ T4418] do_set_master (net/core/rtnetlink.c:2948) 
[ 481.666161][ T4418] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 481.666460][ T4418] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 481.666768][ T4418] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 481.667146][ T4418] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 481.667439][ T4418] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 481.667732][ T4418] ? __kernel_text_address (kernel/extable.c:79) 
[ 481.668038][ T4418] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 481.668334][ T4418] ? __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) 
[ 481.668628][ T4418] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 481.669014][ T4418] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 481.669309][ T4418] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 481.669602][ T4418] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 481.669903][ T4418] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 481.670198][ T4418] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 481.670490][ T4418] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 481.670789][ T4418] ? __create_object (mm/kmemleak.c:771) 
[ 481.671083][ T4418] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 481.671382][ T4418] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 481.671675][ T4418] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 481.672046][ T4418] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 481.672346][ T4418] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 481.672644][ T4418] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 481.672945][ T4418] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 481.673243][ T4418] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 481.673541][ T4418] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 481.673861][ T4418] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 481.674156][ T4418] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 481.674452][ T4418] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 481.674756][ T4418] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 481.675054][ T4418] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 481.675353][ T4418] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 481.675646][ T4418] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 481.675952][ T4418] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 481.676258][ T4418] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 481.676553][ T4418] ? 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) 
[ 481.676855][ T4418] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 481.677151][ T4418] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 481.677442][ T4418] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 481.677738][ T4418] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 481.678047][ T4418] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 481.678340][ T4418] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 481.678639][ T4418] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 481.678947][ T4418] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 481.679241][ T4418] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 481.679614][ T4418] ___sys_sendmsg (net/socket.c:2670) 
[ 481.679913][ T4418] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 481.680209][ T4418] ? __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) 
[ 481.680582][ T4418] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 481.680889][ T4418] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 481.681186][ T4418] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 481.681487][ T4418] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 481.681791][ T4418] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 481.682115][ T4418] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 481.682420][ T4418] __sys_sendmsg (net/socket.c:2700) 
[ 481.682717][ T4418] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 481.683114][ T4418] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 481.683423][ T4418] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 481.683727][ T4418] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 481.684032][ T4418] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  481.684394][ T4418] RIP: 0033:0x7fea163551e7
[ 481.684696][ T4418] 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)
[  481.685768][ T4418] RSP: 002b:00007ffd35bcfbf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  481.686214][ T4418] RAX: ffffffffffffffda RBX: 00007ffd35bd0330 RCX: 00007fea163551e7
[  481.686652][ T4418] RDX: 0000000000000000 RSI: 00007ffd35bcfc60 RDI: 0000000000000005
[  481.687103][ T4418] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  481.687544][ T4418] R10: 000000002f7bf910 R11: 0000000000000246 R12: 0000000000000003
[  481.687989][ T4418] R13: 00000000686e462c R14: 0000000000499600 R15: 0000000000000000
| [  485.284581][ T4469] ------------[ cut here ]------------
| [ 485.284902][ T4469] WARNING: CPU: 3 PID: 4469 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) 
| [  485.285572][ T4469] Modules linked in: vxlan
| [  485.286500][ T4469] Tainted: [W]=WARN
[  485.286726][ T4469] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 485.287111][ T4469] 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) 
[ 485.287417][ T4469] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  485.288485][ T4469] RSP: 0018:ffffc90004136ef0 EFLAGS: 00010246
[  485.288867][ T4469] RAX: 0000000000000000 RBX: ffff888012dba000 RCX: 0000000000000001
[  485.289312][ T4469] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  485.289771][ T4469] RBP: ffffc90004136fd8 R08: 0000000000000000 R09: 0000000000000000
[  485.290395][ T4469] R10: ffffc90004137008 R11: ffffffffa478d1e0 R12: 1ffff92000826de2
[  485.290876][ T4469] R13: 00000000000005dc R14: ffffc90004137008 R15: ffff888012dbaf48
[  485.291325][ T4469] FS:  00007f7f1758f800(0000) GS:ffff8880c6d19000(0000) knlGS:0000000000000000
[  485.291997][ T4469] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  485.292370][ T4469] CR2: 00000000004e6898 CR3: 0000000019de0002 CR4: 0000000000772ef0
[  485.292950][ T4469] PKRU: 55555554
[  485.293173][ T4469] Call Trace:
[  485.293394][ T4469]  <TASK>
[ 485.293554][ T4469] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 485.293872][ T4469] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 485.294186][ T4469] netif_set_mtu (net/core/dev.c:9652) 
[ 485.294481][ T4469] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 485.294810][ T4469] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 485.295036][ T4469] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 485.295335][ T4469] br_add_if (net/bridge/br_if.c:697) 
[ 485.295568][ T4469] do_set_master (net/core/rtnetlink.c:2948) 
[ 485.295871][ T4469] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 485.296175][ T4469] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 485.296473][ T4469] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 485.296874][ T4469] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 485.297170][ T4469] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 485.297462][ T4469] ? __kernel_text_address (kernel/extable.c:79) 
[ 485.297767][ T4469] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 485.298062][ T4469] ? __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) 
[ 485.298365][ T4469] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 485.298731][ T4469] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 485.299046][ T4469] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 485.299346][ T4469] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 485.299640][ T4469] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 485.299945][ T4469] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 485.300241][ T4469] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 485.300532][ T4469] ? __create_object (mm/kmemleak.c:771) 
[ 485.300843][ T4469] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 485.301138][ T4469] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 485.301435][ T4469] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 485.301808][ T4469] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 485.302109][ T4469] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 485.302408][ T4469] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 485.302700][ T4469] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 485.303022][ T4469] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 485.303319][ T4469] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 485.303617][ T4469] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 485.303923][ T4469] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 485.304219][ T4469] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 485.304514][ T4469] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 485.304821][ T4469] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 485.305120][ T4469] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 485.305422][ T4469] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 485.305717][ T4469] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 485.306031][ T4469] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 485.306327][ T4469] ? 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) 
[ 485.306621][ T4469] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 485.306939][ T4469] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 485.307235][ T4469] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 485.307540][ T4469] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 485.307846][ T4469] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 485.308233][ T4469] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 485.308541][ T4469] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 485.308847][ T4469] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 485.309140][ T4469] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 485.309517][ T4469] ___sys_sendmsg (net/socket.c:2670) 
[ 485.309824][ T4469] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 485.310117][ T4469] ? __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) 
[ 485.310484][ T4469] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 485.310800][ T4469] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 485.311102][ T4469] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 485.311401][ T4469] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 485.311699][ T4469] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 485.312007][ T4469] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 485.312313][ T4469] __sys_sendmsg (net/socket.c:2700) 
[ 485.312606][ T4469] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 485.312998][ T4469] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 485.313322][ T4469] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 485.313628][ T4469] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 485.313933][ T4469] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  485.314309][ T4469] RIP: 0033:0x7f7f1775c1e7
[ 485.314617][ T4469] 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)
[  485.315695][ T4469] RSP: 002b:00007ffe47af29a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  485.316152][ T4469] RAX: ffffffffffffffda RBX: 00007ffe47af30e0 RCX: 00007f7f1775c1e7
[  485.316605][ T4469] RDX: 0000000000000000 RSI: 00007ffe47af2a10 RDI: 0000000000000005
[  485.317054][ T4469] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  485.317496][ T4469] R10: 000000003a506910 R11: 0000000000000246 R12: 0000000000000003
[  485.317943][ T4469] R13: 00000000686e462f R14: 0000000000499600 R15: 0000000000000000
| [  486.848192][ T4495] ------------[ cut here ]------------
| [ 486.848482][ T4495] WARNING: CPU: 3 PID: 4495 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) 
| [  486.849067][ T4495] Modules linked in: vxlan
| [  486.850614][ T4495] Tainted: [W]=WARN
[  486.850847][ T4495] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 486.851214][ T4495] 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) 
[ 486.851516][ T4495] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  486.852571][ T4495] RSP: 0018:ffffc90004236ef0 EFLAGS: 00010246
[  486.852950][ T4495] RAX: 0000000000000000 RBX: ffff888012dba000 RCX: 0000000000000001
[  486.853388][ T4495] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  486.853847][ T4495] RBP: ffffc90004236fd8 R08: 0000000000000000 R09: 0000000000000000
[  486.854292][ T4495] R10: ffffc90004237008 R11: ffffffffa50ceab8 R12: 1ffff92000846de2
[  486.854729][ T4495] R13: 0000000000000596 R14: ffffc90004237008 R15: ffff888012dbaf48
[  486.855175][ T4495] FS:  00007fad7b902800(0000) GS:ffff8880c6d19000(0000) knlGS:0000000000000000
[  486.855688][ T4495] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  486.856066][ T4495] CR2: 00000000004e6898 CR3: 0000000018c92004 CR4: 0000000000772ef0
[  486.856510][ T4495] PKRU: 55555554
[  486.856730][ T4495] Call Trace:
[  486.856956][ T4495]  <TASK>
[ 486.857110][ T4495] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 486.857409][ T4495] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 486.857702][ T4495] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 486.858074][ T4495] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 486.858378][ T4495] netif_set_mtu (net/core/dev.c:9652) 
[ 486.858670][ T4495] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 486.858981][ T4495] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 486.859352][ T4495] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 486.859574][ T4495] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 486.859876][ T4495] br_add_if (net/bridge/br_if.c:697) 
[ 486.860110][ T4495] do_set_master (net/core/rtnetlink.c:2948) 
[ 486.860408][ T4495] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 486.860704][ T4495] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 486.861016][ T4495] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 486.861400][ T4495] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 486.861693][ T4495] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 486.861991][ T4495] ? __kernel_text_address (kernel/extable.c:79) 
[ 486.862285][ T4495] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 486.862584][ T4495] ? __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) 
[ 486.862886][ T4495] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 486.863251][ T4495] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 486.863550][ T4495] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 486.863849][ T4495] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 486.864140][ T4495] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 486.864432][ T4495] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 486.864734][ T4495] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 486.865034][ T4495] ? __create_object (mm/kmemleak.c:771) 
[ 486.865328][ T4495] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 486.865623][ T4495] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 486.865922][ T4495] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 486.866284][ T4495] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 486.866584][ T4495] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 486.866893][ T4495] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 486.867191][ T4495] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 486.867488][ T4495] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 486.867788][ T4495] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 486.868079][ T4495] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 486.868378][ T4495] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 486.868671][ T4495] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 486.868975][ T4495] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 486.869274][ T4495] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 486.869578][ T4495] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 486.869889][ T4495] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 486.870183][ T4495] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 486.870487][ T4495] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 486.870802][ T4495] ? 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) 
[ 486.871097][ T4495] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 486.871394][ T4495] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 486.871693][ T4495] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 486.872001][ T4495] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 486.872306][ T4495] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 486.872600][ T4495] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 486.872911][ T4495] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 486.873207][ T4495] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 486.873539][ T4495] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 486.873941][ T4495] ___sys_sendmsg (net/socket.c:2670) 
[ 486.874232][ T4495] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 486.874522][ T4495] ? __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) 
[ 486.874898][ T4495] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 486.875212][ T4495] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 486.875509][ T4495] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 486.875815][ T4495] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 486.876111][ T4495] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 486.876402][ T4495] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 486.876701][ T4495] __sys_sendmsg (net/socket.c:2700) 
[ 486.877000][ T4495] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 486.877365][ T4495] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 486.877672][ T4495] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 486.877977][ T4495] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 486.878282][ T4495] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  486.878653][ T4495] RIP: 0033:0x7fad7bacf1e7
[ 486.878966][ T4495] 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)
[  486.880024][ T4495] RSP: 002b:00007ffdc7ade388 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  486.880469][ T4495] RAX: ffffffffffffffda RBX: 00007ffdc7adeac0 RCX: 00007fad7bacf1e7
[  486.880918][ T4495] RDX: 0000000000000000 RSI: 00007ffdc7ade3f0 RDI: 0000000000000005
[  486.881356][ T4495] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  486.881803][ T4495] R10: 000000001df30910 R11: 0000000000000246 R12: 0000000000000003
[  486.882248][ T4495] R13: 00000000686e4631 R14: 0000000000499600 R15: 0000000000000000
| [  490.461290][ T4545] ------------[ cut here ]------------
| [ 490.461600][ T4545] WARNING: CPU: 3 PID: 4545 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) 
| [  490.462204][ T4545] Modules linked in: vxlan
| [  490.463131][ T4545] Tainted: [W]=WARN
[  490.463368][ T4545] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 490.463785][ T4545] 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) 
[ 490.464091][ T4545] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  490.465152][ T4545] RSP: 0018:ffffc90004036ef0 EFLAGS: 00010246
[  490.465529][ T4545] RAX: 0000000000000000 RBX: ffff8880098e2000 RCX: 0000000000000001
[  490.465979][ T4545] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  490.466423][ T4545] RBP: ffffc90004036fd8 R08: 0000000000000000 R09: 0000000000000000
[  490.466883][ T4545] R10: ffffc90004037008 R11: ffffffffa478d1e0 R12: 1ffff92000806de2
[  490.467328][ T4545] R13: 00000000000005dc R14: ffffc90004037008 R15: ffff8880098e2f48
[  490.467777][ T4545] FS:  00007f9f6b6ec800(0000) GS:ffff8880c6d19000(0000) knlGS:0000000000000000
[  490.468295][ T4545] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  490.468678][ T4545] CR2: 00000000004e6890 CR3: 0000000018ede001 CR4: 0000000000772ef0
[  490.469141][ T4545] PKRU: 55555554
[  490.469362][ T4545] Call Trace:
[  490.469582][ T4545]  <TASK>
[ 490.469734][ T4545] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 490.470038][ T4545] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 490.470344][ T4545] netif_set_mtu (net/core/dev.c:9652) 
[ 490.470639][ T4545] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 490.470968][ T4545] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 490.471192][ T4545] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 490.471491][ T4545] br_add_if (net/bridge/br_if.c:697) 
[ 490.471723][ T4545] do_set_master (net/core/rtnetlink.c:2948) 
[ 490.472025][ T4545] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 490.472323][ T4545] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 490.472623][ T4545] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 490.473002][ T4545] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 490.473302][ T4545] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 490.473606][ T4545] ? __kernel_text_address (kernel/extable.c:79) 
[ 490.473952][ T4545] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 490.474257][ T4545] ? __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) 
[ 490.474553][ T4545] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 490.474949][ T4545] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 490.475268][ T4545] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 490.475575][ T4545] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 490.475883][ T4545] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 490.476181][ T4545] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 490.476479][ T4545] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 490.476790][ T4545] ? __create_object (mm/kmemleak.c:771) 
[ 490.477098][ T4545] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 490.477404][ T4545] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 490.477716][ T4545] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 490.478094][ T4545] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 490.478404][ T4545] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 490.478705][ T4545] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 490.479021][ T4545] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 490.479331][ T4545] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 490.479627][ T4545] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 490.479939][ T4545] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 490.480252][ T4545] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 490.480552][ T4545] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 490.480862][ T4545] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 490.481169][ T4545] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 490.481470][ T4545] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 490.481778][ T4545] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 490.482082][ T4545] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 490.482400][ T4545] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 490.482691][ T4545] ? 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) 
[ 490.483015][ T4545] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 490.483318][ T4545] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 490.483619][ T4545] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 490.483926][ T4545] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 490.484235][ T4545] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 490.484555][ T4545] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 490.484867][ T4545] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 490.485170][ T4545] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 490.485462][ T4545] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 490.485859][ T4545] ___sys_sendmsg (net/socket.c:2670) 
[ 490.486173][ T4545] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 490.486466][ T4545] ? __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) 
[ 490.486862][ T4545] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 490.487185][ T4545] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 490.487490][ T4545] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 490.487801][ T4545] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 490.488116][ T4545] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 490.488419][ T4545] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 490.488725][ T4545] __sys_sendmsg (net/socket.c:2700) 
[ 490.489039][ T4545] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 490.489422][ T4545] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 490.489735][ T4545] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 490.490049][ T4545] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 490.490359][ T4545] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  490.490726][ T4545] RIP: 0033:0x7f9f6b8b91e7
[ 490.491053][ T4545] 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)
[  490.492125][ T4545] RSP: 002b:00007ffdaef12af8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  490.492572][ T4545] RAX: ffffffffffffffda RBX: 00007ffdaef13230 RCX: 00007f9f6b8b91e7
[  490.493028][ T4545] RDX: 0000000000000000 RSI: 00007ffdaef12b60 RDI: 0000000000000005
[  490.493480][ T4545] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  490.493941][ T4545] R10: 0000000022075910 R11: 0000000000000246 R12: 0000000000000003
[  490.494386][ T4545] R13: 00000000686e4634 R14: 0000000000499600 R15: 0000000000000000
| [  492.009069][ T4571] ------------[ cut here ]------------
| [ 492.009389][ T4571] WARNING: CPU: 2 PID: 4571 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) 
| [  492.010005][ T4571] Modules linked in: vxlan
| [  492.010973][ T4571] Tainted: [W]=WARN
[  492.011208][ T4571] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 492.011589][ T4571] 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) 
[ 492.011912][ T4571] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  492.012987][ T4571] RSP: 0018:ffffc90004446ef0 EFLAGS: 00010246
[  492.013372][ T4571] RAX: 0000000000000000 RBX: ffff8880098e2000 RCX: 0000000000000001
[  492.013843][ T4571] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  492.014301][ T4571] RBP: ffffc90004446fd8 R08: 0000000000000000 R09: 0000000000000000
[  492.014762][ T4571] R10: ffffc90004447008 R11: ffffffffa478d1e0 R12: 1ffff92000888de2
[  492.015218][ T4571] R13: 00000000000005aa R14: ffffc90004447008 R15: ffff8880098e2f48
[  492.015696][ T4571] FS:  00007fcae0841800(0000) GS:ffff8880c6c99000(0000) knlGS:0000000000000000
[  492.016239][ T4571] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  492.016624][ T4571] CR2: 00000000004e6890 CR3: 0000000019c03003 CR4: 0000000000772ef0
[  492.017092][ T4571] PKRU: 55555554
[  492.017328][ T4571] Call Trace:
[  492.017561][ T4571]  <TASK>
[ 492.017725][ T4571] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 492.018043][ T4571] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 492.018363][ T4571] netif_set_mtu (net/core/dev.c:9652) 
[ 492.018678][ T4571] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 492.019007][ T4571] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 492.019244][ T4571] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 492.019554][ T4571] br_add_if (net/bridge/br_if.c:697) 
[ 492.019808][ T4571] do_set_master (net/core/rtnetlink.c:2948) 
[ 492.020113][ T4571] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 492.020423][ T4571] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 492.020741][ T4571] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 492.021139][ T4571] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 492.021444][ T4571] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 492.021758][ T4571] ? __kernel_text_address (kernel/extable.c:79) 
[ 492.022067][ T4571] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 492.022376][ T4571] ? __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) 
[ 492.022683][ T4571] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 492.023075][ T4571] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 492.023385][ T4571] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 492.023701][ T4571] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 492.024032][ T4571] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 492.024338][ T4571] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 492.024646][ T4571] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 492.024960][ T4571] ? __create_object (mm/kmemleak.c:771) 
[ 492.025268][ T4571] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 492.025579][ T4571] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 492.025897][ T4571] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 492.026272][ T4571] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 492.026585][ T4571] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 492.026906][ T4571] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 492.027213][ T4571] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 492.027524][ T4571] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 492.027849][ T4571] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 492.028151][ T4571] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 492.028464][ T4571] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 492.028779][ T4571] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 492.029089][ T4571] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 492.029399][ T4571] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 492.029713][ T4571] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 492.030031][ T4571] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 492.030352][ T4571] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 492.030669][ T4571] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 492.030985][ T4571] ? 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) 
[ 492.031291][ T4571] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 492.031598][ T4571] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 492.031913][ T4571] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 492.032225][ T4571] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 492.032541][ T4571] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 492.032889][ T4571] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 492.033210][ T4571] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 492.033525][ T4571] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 492.033843][ T4571] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 492.034235][ T4571] ___sys_sendmsg (net/socket.c:2670) 
[ 492.034538][ T4571] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 492.034863][ T4571] ? __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) 
[ 492.035243][ T4571] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 492.035555][ T4571] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 492.035873][ T4571] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 492.036186][ T4571] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 492.036492][ T4571] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 492.036806][ T4571] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 492.037126][ T4571] __sys_sendmsg (net/socket.c:2700) 
[ 492.037427][ T4571] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 492.037815][ T4571] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 492.038134][ T4571] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 492.038442][ T4571] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 492.038755][ T4571] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  492.039130][ T4571] RIP: 0033:0x7fcae0a0e1e7
[ 492.039451][ T4571] 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)
[  492.040517][ T4571] RSP: 002b:00007ffd1df297c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  492.040980][ T4571] RAX: ffffffffffffffda RBX: 00007ffd1df29f00 RCX: 00007fcae0a0e1e7
[  492.041439][ T4571] RDX: 0000000000000000 RSI: 00007ffd1df29830 RDI: 0000000000000005
[  492.041900][ T4571] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  492.042349][ T4571] R10: 0000000010806910 R11: 0000000000000246 R12: 0000000000000003
[  492.042809][ T4571] R13: 00000000686e4636 R14: 0000000000499600 R15: 0000000000000000
| [  495.592075][ T4621] ------------[ cut here ]------------
| [ 495.592394][ T4621] WARNING: CPU: 0 PID: 4621 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) 
| [  495.593933][ T4621] Modules linked in: vxlan
| [  495.594901][ T4621] Tainted: [W]=WARN
[  495.595140][ T4621] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 495.595531][ T4621] 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) 
[ 495.595862][ T4621] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  495.596985][ T4621] RSP: 0018:ffffc90004356ef0 EFLAGS: 00010246
[  495.597381][ T4621] RAX: 0000000000000000 RBX: ffff88801a3aa000 RCX: 0000000000000001
[  495.597854][ T4621] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  495.598325][ T4621] RBP: ffffc90004356fd8 R08: 0000000000000000 R09: 0000000000000000
[  495.598801][ T4621] R10: ffffc90004357008 R11: ffffffffa478d1e0 R12: 1ffff9200086ade2
[  495.599272][ T4621] R13: 00000000000005dc R14: ffffc90004357008 R15: ffff88801a3aaf48
[  495.599780][ T4621] FS:  00007ff60ace0800(0000) GS:ffff8880c6b99000(0000) knlGS:0000000000000000
[  495.600329][ T4621] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  495.600721][ T4621] CR2: 00000000004e6898 CR3: 000000001a164002 CR4: 0000000000772ef0
[  495.601201][ T4621] PKRU: 55555554
[  495.601438][ T4621] Call Trace:
[  495.601671][ T4621]  <TASK>
[ 495.601849][ T4621] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 495.602159][ T4621] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 495.602483][ T4621] netif_set_mtu (net/core/dev.c:9652) 
[ 495.602799][ T4621] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 495.603123][ T4621] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 495.603359][ T4621] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 495.603681][ T4621] br_add_if (net/bridge/br_if.c:697) 
[ 495.603949][ T4621] do_set_master (net/core/rtnetlink.c:2948) 
[ 495.604265][ T4621] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 495.604579][ T4621] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 495.604898][ T4621] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 495.605290][ T4621] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 495.605599][ T4621] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 495.605915][ T4621] ? __kernel_text_address (kernel/extable.c:79) 
[ 495.606227][ T4621] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 495.606545][ T4621] ? __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) 
[ 495.606867][ T4621] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 495.607253][ T4621] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 495.607565][ T4621] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 495.607883][ T4621] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 495.608196][ T4621] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 495.608509][ T4621] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 495.608838][ T4621] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 495.609148][ T4621] ? __create_object (mm/kmemleak.c:771) 
[ 495.609462][ T4621] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 495.609782][ T4621] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 495.610096][ T4621] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 495.610482][ T4621] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 495.610814][ T4621] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 495.611131][ T4621] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 495.611447][ T4621] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 495.611772][ T4621] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 495.612086][ T4621] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 495.612393][ T4621] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 495.612703][ T4621] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 495.613021][ T4621] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 495.613336][ T4621] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 495.613667][ T4621] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 495.613994][ T4621] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 495.614306][ T4621] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 495.614616][ T4621] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 495.614947][ T4621] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 495.615260][ T4621] ? 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) 
[ 495.615571][ T4621] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 495.615901][ T4621] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 495.616213][ T4621] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 495.616531][ T4621] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 495.616854][ T4621] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 495.617166][ T4621] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 495.617484][ T4621] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 495.617810][ T4621] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 495.618121][ T4621] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 495.618524][ T4621] ___sys_sendmsg (net/socket.c:2670) 
[ 495.618841][ T4621] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 495.619150][ T4621] ? __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) 
[ 495.619545][ T4621] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 495.619869][ T4621] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 495.620180][ T4621] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 495.620498][ T4621] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 495.620830][ T4621] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 495.621142][ T4621] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 495.621459][ T4621] __sys_sendmsg (net/socket.c:2700) 
[ 495.621776][ T4621] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 495.622162][ T4621] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 495.622484][ T4621] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 495.622804][ T4621] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 495.623123][ T4621] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  495.623506][ T4621] RIP: 0033:0x7ff60aead1e7
[ 495.623847][ T4621] 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)
[  495.624968][ T4621] RSP: 002b:00007fff933c9d98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  495.625443][ T4621] RAX: ffffffffffffffda RBX: 00007fff933ca4d0 RCX: 00007ff60aead1e7
[  495.625915][ T4621] RDX: 0000000000000000 RSI: 00007fff933c9e00 RDI: 0000000000000005
[  495.626383][ T4621] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  495.626856][ T4621] R10: 000000002185a910 R11: 0000000000000246 R12: 0000000000000003
[  495.627357][ T4621] R13: 00000000686e463a R14: 0000000000499600 R15: 0000000000000000
| [  497.190149][ T4647] ------------[ cut here ]------------
| [ 497.190442][ T4647] WARNING: CPU: 3 PID: 4647 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) 
| [  497.191032][ T4647] Modules linked in: vxlan
| [  497.191940][ T4647] Tainted: [W]=WARN
[  497.192163][ T4647] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 497.192528][ T4647] 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) 
[ 497.192835][ T4647] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  497.193913][ T4647] RSP: 0018:ffffc90004686ef0 EFLAGS: 00010246
[  497.194285][ T4647] RAX: 0000000000000000 RBX: ffff88801a3aa000 RCX: 0000000000000001
[  497.194722][ T4647] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  497.195182][ T4647] RBP: ffffc90004686fd8 R08: 0000000000000000 R09: 0000000000000000
[  497.195623][ T4647] R10: ffffc90004687008 R11: ffffffffa50ceab8 R12: 1ffff920008d0de2
[  497.196071][ T4647] R13: 0000000000000596 R14: ffffc90004687008 R15: ffff88801a3aaf48
[  497.196512][ T4647] FS:  00007fbea9a92800(0000) GS:ffff8880c6d19000(0000) knlGS:0000000000000000
[  497.197036][ T4647] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  497.197415][ T4647] CR2: 00000000004e6898 CR3: 0000000018dfb005 CR4: 0000000000772ef0
[  497.197867][ T4647] PKRU: 55555554
[  497.198091][ T4647] Call Trace:
[  497.198310][ T4647]  <TASK>
[ 497.198463][ T4647] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 497.198769][ T4647] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 497.199065][ T4647] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 497.199437][ T4647] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 497.199735][ T4647] netif_set_mtu (net/core/dev.c:9652) 
[ 497.200037][ T4647] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 497.200342][ T4647] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 497.200709][ T4647] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 497.200941][ T4647] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 497.201238][ T4647] br_add_if (net/bridge/br_if.c:697) 
[ 497.201477][ T4647] do_set_master (net/core/rtnetlink.c:2948) 
[ 497.201777][ T4647] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 497.202076][ T4647] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 497.202377][ T4647] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 497.202759][ T4647] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 497.203052][ T4647] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 497.203346][ T4647] ? __kernel_text_address (kernel/extable.c:79) 
[ 497.203658][ T4647] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 497.203966][ T4647] ? __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) 
[ 497.204263][ T4647] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 497.204629][ T4647] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 497.204931][ T4647] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 497.205226][ T4647] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 497.205521][ T4647] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 497.205835][ T4647] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 497.206131][ T4647] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 497.206423][ T4647] ? __create_object (mm/kmemleak.c:771) 
[ 497.206720][ T4647] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 497.207041][ T4647] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 497.207336][ T4647] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 497.207701][ T4647] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 497.208007][ T4647] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 497.208316][ T4647] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 497.208612][ T4647] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 497.208921][ T4647] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 497.209217][ T4647] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 497.209509][ T4647] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 497.209814][ T4647] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 497.210110][ T4647] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 497.210409][ T4647] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 497.210714][ T4647] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 497.211025][ T4647] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 497.211319][ T4647] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 497.211616][ T4647] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 497.211932][ T4647] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 497.212223][ T4647] ? 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) 
[ 497.212522][ T4647] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 497.212828][ T4647] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 497.213119][ T4647] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 497.213417][ T4647] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 497.213729][ T4647] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 497.214033][ T4647] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 497.214333][ T4647] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 497.214631][ T4647] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 497.214940][ T4647] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 497.215317][ T4647] ___sys_sendmsg (net/socket.c:2670) 
[ 497.215607][ T4647] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 497.215907][ T4647] ? __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) 
[ 497.216274][ T4647] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 497.216572][ T4647] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 497.216878][ T4647] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 497.217183][ T4647] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 497.217474][ T4647] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 497.217774][ T4647] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 497.218078][ T4647] __sys_sendmsg (net/socket.c:2700) 
[ 497.218377][ T4647] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 497.218737][ T4647] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 497.219052][ T4647] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 497.219356][ T4647] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 497.219654][ T4647] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  497.220031][ T4647] RIP: 0033:0x7fbea9c5f1e7
[ 497.220337][ T4647] 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)
[  497.221400][ T4647] RSP: 002b:00007ffec1910b18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  497.221850][ T4647] RAX: ffffffffffffffda RBX: 00007ffec1911250 RCX: 00007fbea9c5f1e7
[  497.222293][ T4647] RDX: 0000000000000000 RSI: 00007ffec1910b80 RDI: 0000000000000005
[  497.222730][ T4647] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  497.223180][ T4647] R10: 00000000166b4910 R11: 0000000000000246 R12: 0000000000000003
[  497.223636][ T4647] R13: 00000000686e463b R14: 0000000000499600 R15: 0000000000000000
| [  501.760524][   T12] ------------[ cut here ]------------
| [ 501.760887][ T12] WARNING: CPU: 1 PID: 12 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) 
| [  501.761414][   T12] Modules linked in: vxlan
| [  501.762448][   T12] Tainted: [W]=WARN
[  501.762682][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  501.764120][   T12] Workqueue: netns cleanup_net
[ 501.764445][ T12] 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) 
[ 501.764769][ T12] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  501.765883][   T12] RSP: 0018:ffffc900000c7360 EFLAGS: 00010246
[  501.766274][   T12] RAX: 0000000000000000 RBX: ffff88801a3aa000 RCX: 0000000000000001
[  501.766736][   T12] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  501.767202][   T12] RBP: ffffc900000c7450 R08: 0000000000000000 R09: 0000000000000000
[  501.767661][   T12] R10: ffffc900000c7480 R11: ffffffffa478d1e0 R12: 1ffff92000018e70
[  501.768128][   T12] R13: 00000000000005dc R14: ffffc900000c7480 R15: ffff88801a3aaf48
[  501.768596][   T12] FS:  0000000000000000(0000) GS:ffff8880c6c19000(0000) knlGS:0000000000000000
[  501.769142][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  501.769536][   T12] CR2: 00007ffd1c0e6320 CR3: 000000000e54a006 CR4: 0000000000772ef0
[  501.770015][   T12] PKRU: 55555554
[  501.770245][   T12] Call Trace:
[  501.770477][   T12]  <TASK>
[ 501.770634][ T12] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 501.770949][ T12] ? __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) 
[ 501.771333][ T12] ? br_del_if (net/bridge/br_if.c:742) 
[ 501.771564][ T12] ? br_device_event (net/bridge/br.c:141) 
[ 501.771882][ T12] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 501.772188][ T12] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 501.772494][ T12] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 501.772894][ T12] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 501.773275][ T12] ? ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 501.773588][ T12] ? cleanup_net (net/core/net_namespace.c:684) 
[ 501.773912][ T12] ? process_one_work (kernel/workqueue.c:3238) 
[ 501.774217][ T12] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 501.774520][ T12] ? kthread (kernel/kthread.c:464) 
[ 501.774760][ T12] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 501.775067][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 501.775386][ T12] netif_set_mtu (net/core/dev.c:9652) 
[ 501.775700][ T12] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 501.776035][ T12] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 501.776267][ T12] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 501.776576][ T12] br_del_if (net/bridge/br_if.c:743) 
[ 501.776818][ T12] br_device_event (net/bridge/br.c:141) 
[ 501.777125][ T12] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 501.777437][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 501.777766][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 501.778159][ T12] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 501.778556][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 501.778954][ T12] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 501.779278][ T12] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 501.779674][ T12] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 501.780086][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 501.780399][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 501.780803][ T12] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 501.781116][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 501.781550][ T12] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 501.781952][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 501.782333][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 501.782717][ T12] default_device_exit_batch (net/core/dev.c:12673) 
[ 501.783034][ T12] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 501.783436][ T12] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 501.783769][ T12] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 501.784074][ T12] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 501.784384][ T12] cleanup_net (net/core/net_namespace.c:684) 
[ 501.784689][ T12] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 501.785007][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 501.785318][ T12] process_one_work (kernel/workqueue.c:3238) 
[ 501.785631][ T12] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 501.785966][ T12] ? assign_work (kernel/workqueue.c:1200) 
[ 501.786278][ T12] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 501.786589][ T12] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 501.786904][ T12] kthread (kernel/kthread.c:464) 
[ 501.787134][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 501.787437][ T12] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 501.787738][ T12] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 501.788059][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 501.788387][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 501.788694][ T12] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 501.789006][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 501.789307][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  501.824654][   T12] ------------[ cut here ]------------
| [ 501.826353][ T12] WARNING: CPU: 2 PID: 12 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) 
| [  501.827135][   T12] Modules linked in: vxlan
| [  501.828209][   T12] Tainted: [W]=WARN
[  501.828454][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  501.828859][   T12] Workqueue: netns cleanup_net
[ 501.829190][ T12] 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) 
[ 501.829515][ T12] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  501.830640][   T12] RSP: 0018:ffffc900000c7360 EFLAGS: 00010246
[  501.831055][   T12] RAX: 0000000000000000 RBX: ffff8880098e2000 RCX: 0000000000000001
[  501.831531][   T12] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  501.832009][   T12] RBP: ffffc900000c7450 R08: 0000000000000000 R09: 0000000000000000
[  501.832485][   T12] R10: ffffc900000c7480 R11: ffffffffa478d1e0 R12: 1ffff92000018e70
[  501.832976][   T12] R13: 00000000000005dc R14: ffffc900000c7480 R15: ffff8880098e2f48
[  501.833450][   T12] FS:  0000000000000000(0000) GS:ffff8880c6c99000(0000) knlGS:0000000000000000
[  501.834027][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  501.834452][   T12] CR2: 0000000000478f27 CR3: 000000000e54a003 CR4: 0000000000772ef0
[  501.834949][   T12] PKRU: 55555554
[  501.835196][   T12] Call Trace:
[  501.835439][   T12]  <TASK>
[ 501.835607][ T12] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 501.835938][ T12] ? __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) 
[ 501.836331][ T12] ? br_del_if (net/bridge/br_if.c:742) 
[ 501.836577][ T12] ? br_device_event (net/bridge/br.c:141) 
[ 501.836909][ T12] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 501.837230][ T12] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 501.837551][ T12] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 501.837951][ T12] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 501.838414][ T12] ? ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 501.838759][ T12] ? cleanup_net (net/core/net_namespace.c:684) 
[ 501.839093][ T12] ? process_one_work (kernel/workqueue.c:3238) 
[ 501.839437][ T12] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 501.839780][ T12] ? kthread (kernel/kthread.c:464) 
[ 501.840038][ T12] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 501.840374][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 501.840721][ T12] netif_set_mtu (net/core/dev.c:9652) 
[ 501.841064][ T12] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 501.841416][ T12] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 501.841674][ T12] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 501.842028][ T12] br_del_if (net/bridge/br_if.c:743) 
[ 501.842287][ T12] br_device_event (net/bridge/br.c:141) 
[ 501.842623][ T12] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 501.842980][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 501.843326][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 501.843766][ T12] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 501.844223][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 501.844657][ T12] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 501.845028][ T12] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 501.845460][ T12] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 501.845909][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 501.846253][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 501.846676][ T12] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 501.847036][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 501.847453][ T12] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 501.847878][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 501.848293][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 501.848718][ T12] default_device_exit_batch (net/core/dev.c:12673) 
[ 501.849070][ T12] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 501.849500][ T12] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 501.849856][ T12] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 501.850193][ T12] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 501.850539][ T12] cleanup_net (net/core/net_namespace.c:684) 
[ 501.850883][ T12] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 501.851222][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 501.851573][ T12] process_one_work (kernel/workqueue.c:3238) 
[ 501.851931][ T12] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 501.852291][ T12] ? assign_work (kernel/workqueue.c:1200) 
[ 501.852648][ T12] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 501.853004][ T12] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 501.853341][ T12] kthread (kernel/kthread.c:464) 
[ 501.853628][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 501.853974][ T12] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 501.854314][ T12] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 501.854653][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 501.855004][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 501.855331][ T12] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 501.855652][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 501.855979][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  523.898520][ T4897] ------------[ cut here ]------------
| [ 523.899951][ T4897] WARNING: CPU: 3 PID: 4897 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) 
| [  523.900537][ T4897] Modules linked in: vxlan
| [  523.901444][ T4897] Tainted: [W]=WARN
[  523.901667][ T4897] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 523.902045][ T4897] 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) 
[ 523.902350][ T4897] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  523.903403][ T4897] RSP: 0018:ffffc90005026ef0 EFLAGS: 00010246
[  523.903795][ T4897] RAX: 0000000000000000 RBX: ffff888012f62000 RCX: 0000000000000001
[  523.904236][ T4897] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  523.904679][ T4897] RBP: ffffc90005026fd8 R08: 0000000000000000 R09: 0000000000000000
[  523.905126][ T4897] R10: ffffc90005027008 R11: ffffffffa478d1e0 R12: 1ffff92000a04de2
[  523.905569][ T4897] R13: 00000000000005dc R14: ffffc90005027008 R15: ffff888012f62f48
[  523.906019][ T4897] FS:  00007fd9ed9fc800(0000) GS:ffff8880c6d19000(0000) knlGS:0000000000000000
[  523.906547][ T4897] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  523.906922][ T4897] CR2: 00000000004e6890 CR3: 0000000019797005 CR4: 0000000000772ef0
[  523.907363][ T4897] PKRU: 55555554
[  523.907582][ T4897] Call Trace:
[  523.907809][ T4897]  <TASK>
[ 523.907962][ T4897] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 523.908256][ T4897] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 523.908568][ T4897] netif_set_mtu (net/core/dev.c:9652) 
[ 523.908869][ T4897] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 523.909179][ T4897] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 523.909403][ T4897] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 523.909699][ T4897] br_add_if (net/bridge/br_if.c:697) 
[ 523.909940][ T4897] do_set_master (net/core/rtnetlink.c:2948) 
[ 523.910233][ T4897] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 523.910537][ T4897] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 523.910842][ T4897] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 523.911212][ T4897] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 523.911505][ T4897] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 523.911802][ T4897] ? __kernel_text_address (kernel/extable.c:79) 
[ 523.912098][ T4897] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 523.912393][ T4897] ? __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) 
[ 523.912692][ T4897] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 523.913068][ T4897] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 523.913365][ T4897] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 523.913667][ T4897] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 523.913968][ T4897] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 523.914264][ T4897] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 523.914561][ T4897] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 523.914860][ T4897] ? __create_object (mm/kmemleak.c:771) 
[ 523.915163][ T4897] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 523.915457][ T4897] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 523.915774][ T4897] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 523.916141][ T4897] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 523.916443][ T4897] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 523.916742][ T4897] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 523.917046][ T4897] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 523.917350][ T4897] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 523.917646][ T4897] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 523.917947][ T4897] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 523.918242][ T4897] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 523.918533][ T4897] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 523.918835][ T4897] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 523.919134][ T4897] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 523.919431][ T4897] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 523.919729][ T4897] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 523.920030][ T4897] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 523.920335][ T4897] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 523.920625][ T4897] ? 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) 
[ 523.920926][ T4897] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 523.921224][ T4897] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 523.921516][ T4897] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 523.921827][ T4897] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 523.922127][ T4897] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 523.922421][ T4897] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 523.922721][ T4897] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 523.923027][ T4897] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 523.923319][ T4897] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 523.923706][ T4897] ___sys_sendmsg (net/socket.c:2670) 
[ 523.924013][ T4897] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 523.924304][ T4897] ? __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) 
[ 523.924669][ T4897] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 523.924975][ T4897] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 523.925271][ T4897] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 523.925569][ T4897] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 523.925871][ T4897] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 523.926171][ T4897] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 523.926475][ T4897] __sys_sendmsg (net/socket.c:2700) 
[ 523.926773][ T4897] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 523.927137][ T4897] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 523.927443][ T4897] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 523.927738][ T4897] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 523.928040][ T4897] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  523.928409][ T4897] RIP: 0033:0x7fd9edbc91e7
[ 523.928712][ T4897] 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)
[  523.929766][ T4897] RSP: 002b:00007ffe93bb4458 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  523.930213][ T4897] RAX: ffffffffffffffda RBX: 00007ffe93bb4b90 RCX: 00007fd9edbc91e7
[  523.930660][ T4897] RDX: 0000000000000000 RSI: 00007ffe93bb44c0 RDI: 0000000000000005
[  523.931107][ T4897] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  523.931546][ T4897] R10: 0000000040003910 R11: 0000000000000246 R12: 0000000000000003
[  523.931992][ T4897] R13: 00000000686e4656 R14: 0000000000499600 R15: 0000000000000000
| [  525.464421][ T4923] ------------[ cut here ]------------
| [ 525.464711][ T4923] WARNING: CPU: 3 PID: 4923 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) 
| [  525.465313][ T4923] Modules linked in: vxlan
| [  525.466219][ T4923] Tainted: [W]=WARN
[  525.466442][ T4923] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 525.466816][ T4923] 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) 
[ 525.467118][ T4923] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  525.468178][ T4923] RSP: 0018:ffffc90005106ef0 EFLAGS: 00010246
[  525.468550][ T4923] RAX: 0000000000000000 RBX: ffff888012f62000 RCX: 0000000000000001
[  525.469004][ T4923] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  525.469445][ T4923] RBP: ffffc90005106fd8 R08: 0000000000000000 R09: 0000000000000000
[  525.469897][ T4923] R10: ffffc90005107008 R11: ffffffffa50ceab8 R12: 1ffff92000a20de2
[  525.470338][ T4923] R13: 00000000000005aa R14: ffffc90005107008 R15: ffff888012f62f48
[  525.470780][ T4923] FS:  00007f8405873800(0000) GS:ffff8880c6d19000(0000) knlGS:0000000000000000
[  525.471293][ T4923] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  525.471692][ T4923] CR2: 00000000004e6890 CR3: 0000000009032006 CR4: 0000000000772ef0
[  525.472153][ T4923] PKRU: 55555554
[  525.472374][ T4923] Call Trace:
[  525.472594][ T4923]  <TASK>
[ 525.472768][ T4923] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 525.473082][ T4923] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 525.473377][ T4923] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 525.473773][ T4923] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 525.474082][ T4923] netif_set_mtu (net/core/dev.c:9652) 
[ 525.474375][ T4923] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 525.474681][ T4923] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 525.475061][ T4923] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 525.475286][ T4923] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 525.475586][ T4923] br_add_if (net/bridge/br_if.c:697) 
[ 525.475839][ T4923] do_set_master (net/core/rtnetlink.c:2948) 
[ 525.476137][ T4923] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 525.476433][ T4923] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 525.476731][ T4923] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 525.477125][ T4923] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 525.477423][ T4923] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 525.477714][ T4923] ? __kernel_text_address (kernel/extable.c:79) 
[ 525.478026][ T4923] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 525.478325][ T4923] ? __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) 
[ 525.478623][ T4923] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 525.478996][ T4923] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 525.479292][ T4923] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 525.479588][ T4923] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 525.479891][ T4923] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 525.480191][ T4923] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 525.480490][ T4923] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 525.480819][ T4923] ? __create_object (mm/kmemleak.c:771) 
[ 525.481127][ T4923] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 525.481430][ T4923] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 525.481723][ T4923] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 525.482099][ T4923] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 525.482401][ T4923] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 525.482704][ T4923] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 525.483009][ T4923] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 525.483312][ T4923] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 525.483617][ T4923] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 525.483932][ T4923] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 525.484230][ T4923] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 525.484534][ T4923] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 525.484859][ T4923] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 525.485177][ T4923] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 525.485479][ T4923] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 525.485800][ T4923] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 525.486096][ T4923] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 525.486404][ T4923] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 525.486698][ T4923] ? 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) 
[ 525.487019][ T4923] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 525.487328][ T4923] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 525.487621][ T4923] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 525.487950][ T4923] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 525.488256][ T4923] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 525.488561][ T4923] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 525.488883][ T4923] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 525.489188][ T4923] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 525.489489][ T4923] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 525.489881][ T4923] ___sys_sendmsg (net/socket.c:2670) 
[ 525.490174][ T4923] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 525.490485][ T4923] ? __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) 
[ 525.490867][ T4923] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 525.491165][ T4923] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 525.491478][ T4923] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 525.491795][ T4923] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 525.492099][ T4923] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 525.492392][ T4923] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 525.492694][ T4923] __sys_sendmsg (net/socket.c:2700) 
[ 525.493004][ T4923] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 525.493369][ T4923] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 525.493688][ T4923] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 525.493995][ T4923] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 525.494311][ T4923] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  525.494675][ T4923] RIP: 0033:0x7f8405a401e7
[ 525.494989][ T4923] 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)
[  525.496068][ T4923] RSP: 002b:00007ffd58bf4b98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  525.496521][ T4923] RAX: ffffffffffffffda RBX: 00007ffd58bf52d0 RCX: 00007f8405a401e7
[  525.497013][ T4923] RDX: 0000000000000000 RSI: 00007ffd58bf4c00 RDI: 0000000000000005
[  525.497462][ T4923] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  525.497922][ T4923] R10: 0000000028f2a910 R11: 0000000000000246 R12: 0000000000000003
[  525.498380][ T4923] R13: 00000000686e4657 R14: 0000000000499600 R15: 0000000000000000
| [  529.066894][ T4974] ------------[ cut here ]------------
| [ 529.067198][ T4974] WARNING: CPU: 0 PID: 4974 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) 
| [  529.067798][ T4974] Modules linked in: vxlan
| [  529.068699][ T4974] Tainted: [W]=WARN
[  529.068935][ T4974] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 529.069304][ T4974] 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) 
[ 529.069608][ T4974] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  529.070676][ T4974] RSP: 0018:ffffc900052d6ef0 EFLAGS: 00010246
[  529.071062][ T4974] RAX: 0000000000000000 RBX: ffff888013322000 RCX: 0000000000000001
[  529.071504][ T4974] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  529.071951][ T4974] RBP: ffffc900052d6fd8 R08: 0000000000000000 R09: 0000000000000000
[  529.072394][ T4974] R10: ffffc900052d7008 R11: ffffffffa478d1e0 R12: 1ffff92000a5ade2
[  529.072891][ T4974] R13: 00000000000005dc R14: ffffc900052d7008 R15: ffff888013322f48
[  529.073332][ T4974] FS:  00007f1155039800(0000) GS:ffff8880c6b99000(0000) knlGS:0000000000000000
[  529.073874][ T4974] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  529.074252][ T4974] CR2: 00000000004e6898 CR3: 000000001465e003 CR4: 0000000000772ef0
[  529.074697][ T4974] PKRU: 55555554
[  529.075157][ T4974] Call Trace:
[  529.075380][ T4974]  <TASK>
[ 529.075533][ T4974] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 529.075973][ T4974] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 529.076283][ T4974] netif_set_mtu (net/core/dev.c:9652) 
[ 529.076581][ T4974] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 529.077030][ T4974] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 529.077255][ T4974] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 529.077555][ T4974] br_add_if (net/bridge/br_if.c:697) 
[ 529.077924][ T4974] do_set_master (net/core/rtnetlink.c:2948) 
[ 529.078224][ T4974] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 529.078527][ T4974] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 529.078990][ T4974] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 529.079367][ T4974] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 529.079663][ T4974] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 529.080019][ T4974] ? __kernel_text_address (kernel/extable.c:79) 
[ 529.080317][ T4974] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 529.080615][ T4974] ? __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) 
[ 529.080921][ T4974] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 529.081291][ T4974] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 529.081585][ T4974] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 529.081886][ T4974] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 529.082179][ T4974] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 529.082475][ T4974] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 529.082788][ T4974] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 529.083085][ T4974] ? __create_object (mm/kmemleak.c:771) 
[ 529.083380][ T4974] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 529.083692][ T4974] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 529.083998][ T4974] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 529.084368][ T4974] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 529.084668][ T4974] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 529.084977][ T4974] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 529.085273][ T4974] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 529.085571][ T4974] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 529.085873][ T4974] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 529.086172][ T4974] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 529.086467][ T4974] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 529.086777][ T4974] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 529.087076][ T4974] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 529.087379][ T4974] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 529.087676][ T4974] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 529.087979][ T4974] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 529.088284][ T4974] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 529.088591][ T4974] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 529.088893][ T4974] ? 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) 
[ 529.089189][ T4974] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 529.089485][ T4974] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 529.089784][ T4974] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 529.090084][ T4974] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 529.090385][ T4974] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 529.090678][ T4974] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 529.090995][ T4974] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 529.091293][ T4974] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 529.091582][ T4974] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 529.091969][ T4974] ___sys_sendmsg (net/socket.c:2670) 
[ 529.092260][ T4974] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 529.092556][ T4974] ? __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) 
[ 529.092930][ T4974] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 529.093227][ T4974] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 529.093524][ T4974] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 529.093851][ T4974] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 529.094149][ T4974] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 529.094440][ T4974] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 529.094766][ T4974] __sys_sendmsg (net/socket.c:2700) 
[ 529.095061][ T4974] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 529.095428][ T4974] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 529.095733][ T4974] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 529.096042][ T4974] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 529.096345][ T4974] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  529.096706][ T4974] RIP: 0033:0x7f11552061e7
[ 529.097020][ T4974] 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)
[  529.098082][ T4974] RSP: 002b:00007ffd5630e8b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  529.098523][ T4974] RAX: ffffffffffffffda RBX: 00007ffd5630eff0 RCX: 00007f11552061e7
[  529.098985][ T4974] RDX: 0000000000000000 RSI: 00007ffd5630e920 RDI: 0000000000000005
[  529.099438][ T4974] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  529.099910][ T4974] R10: 00000000236ab910 R11: 0000000000000246 R12: 0000000000000003
[  529.100374][ T4974] R13: 00000000686e465b R14: 0000000000499600 R15: 0000000000000000
| [  530.633206][ T5000] ------------[ cut here ]------------
| [ 530.633544][ T5000] WARNING: CPU: 2 PID: 5000 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) 
| [  530.634178][ T5000] Modules linked in: vxlan
| [  530.635127][ T5000] Tainted: [W]=WARN
[  530.635373][ T5000] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 530.635762][ T5000] 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) 
[ 530.636079][ T5000] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  530.637171][ T5000] RSP: 0018:ffffc90005366ef0 EFLAGS: 00010246
[  530.637574][ T5000] RAX: 0000000000000000 RBX: ffff888013322000 RCX: 0000000000000001
[  530.638061][ T5000] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  530.638532][ T5000] RBP: ffffc90005366fd8 R08: 0000000000000000 R09: 0000000000000000
[  530.638990][ T5000] R10: ffffc90005367008 R11: ffffffffa50ceab8 R12: 1ffff92000a6cde2
[  530.639451][ T5000] R13: 0000000000000596 R14: ffffc90005367008 R15: ffff888013322f48
[  530.639913][ T5000] FS:  00007fb5085ac800(0000) GS:ffff8880c6c99000(0000) knlGS:0000000000000000
[  530.640443][ T5000] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  530.640837][ T5000] CR2: 00000000004e6898 CR3: 0000000013213006 CR4: 0000000000772ef0
[  530.641306][ T5000] PKRU: 55555554
[  530.641551][ T5000] Call Trace:
[  530.641794][ T5000]  <TASK>
[ 530.641966][ T5000] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 530.642280][ T5000] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 530.642607][ T5000] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 530.643008][ T5000] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 530.643325][ T5000] netif_set_mtu (net/core/dev.c:9652) 
[ 530.643647][ T5000] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 530.643982][ T5000] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 530.644368][ T5000] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 530.644617][ T5000] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 530.644940][ T5000] br_add_if (net/bridge/br_if.c:697) 
[ 530.645193][ T5000] do_set_master (net/core/rtnetlink.c:2948) 
[ 530.645508][ T5000] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 530.645827][ T5000] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 530.646147][ T5000] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 530.646536][ T5000] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 530.646853][ T5000] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 530.647157][ T5000] ? __kernel_text_address (kernel/extable.c:79) 
[ 530.647481][ T5000] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 530.647800][ T5000] ? __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) 
[ 530.648110][ T5000] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 530.648494][ T5000] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 530.648829][ T5000] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 530.649134][ T5000] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 530.649454][ T5000] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 530.649771][ T5000] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 530.650081][ T5000] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 530.650388][ T5000] ? __create_object (mm/kmemleak.c:771) 
[ 530.650696][ T5000] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 530.651017][ T5000] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 530.651331][ T5000] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 530.651707][ T5000] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 530.652036][ T5000] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 530.652353][ T5000] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 530.652668][ T5000] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 530.652999][ T5000] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 530.653321][ T5000] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 530.653655][ T5000] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 530.653987][ T5000] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 530.654295][ T5000] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 530.654608][ T5000] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 530.654928][ T5000] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 530.655245][ T5000] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 530.655553][ T5000] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 530.655881][ T5000] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 530.656199][ T5000] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 530.656510][ T5000] ? 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) 
[ 530.656832][ T5000] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 530.657143][ T5000] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 530.657455][ T5000] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 530.657777][ T5000] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 530.658096][ T5000] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 530.658404][ T5000] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 530.658718][ T5000] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 530.659036][ T5000] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 530.659344][ T5000] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 530.659737][ T5000] ___sys_sendmsg (net/socket.c:2670) 
[ 530.660053][ T5000] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 530.660367][ T5000] ? __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) 
[ 530.660756][ T5000] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 530.661079][ T5000] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 530.661399][ T5000] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 530.661723][ T5000] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 530.662054][ T5000] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 530.662362][ T5000] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 530.662682][ T5000] __sys_sendmsg (net/socket.c:2700) 
[ 530.662996][ T5000] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 530.663374][ T5000] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 530.663707][ T5000] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 530.664031][ T5000] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 530.664343][ T5000] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  530.664725][ T5000] RIP: 0033:0x7fb5087791e7
[ 530.665060][ T5000] 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)
[  530.666139][ T5000] RSP: 002b:00007ffd51a93718 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  530.666602][ T5000] RAX: ffffffffffffffda RBX: 00007ffd51a93e50 RCX: 00007fb5087791e7
[  530.667069][ T5000] RDX: 0000000000000000 RSI: 00007ffd51a93780 RDI: 0000000000000005
[  530.667522][ T5000] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  530.667986][ T5000] R10: 000000002a6cb910 R11: 0000000000000246 R12: 0000000000000003
[  530.668443][ T5000] R13: 00000000686e465d R14: 0000000000499600 R15: 0000000000000000
| [  534.292907][ T5051] ------------[ cut here ]------------
| [ 534.293206][ T5051] WARNING: CPU: 0 PID: 5051 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) 
| [  534.293809][ T5051] Modules linked in: vxlan
| [  534.294704][ T5051] Tainted: [W]=WARN
[  534.294942][ T5051] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 534.295310][ T5051] 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) 
[ 534.295615][ T5051] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  534.296681][ T5051] RSP: 0018:ffffc90005356ef0 EFLAGS: 00010246
[  534.297064][ T5051] RAX: 0000000000000000 RBX: ffff8880188da000 RCX: 0000000000000001
[  534.297506][ T5051] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  534.297964][ T5051] RBP: ffffc90005356fd8 R08: 0000000000000000 R09: 0000000000000000
[  534.298409][ T5051] R10: ffffc90005357008 R11: ffffffffa478d1e0 R12: 1ffff92000a6ade2
[  534.298864][ T5051] R13: 00000000000005dc R14: ffffc90005357008 R15: ffff8880188daf48
[  534.299311][ T5051] FS:  00007f3d0d364800(0000) GS:ffff8880c6b99000(0000) knlGS:0000000000000000
[  534.299837][ T5051] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  534.300221][ T5051] CR2: 00000000004e68a0 CR3: 000000001a654003 CR4: 0000000000772ef0
[  534.300663][ T5051] PKRU: 55555554
[  534.300891][ T5051] Call Trace:
[  534.301111][ T5051]  <TASK>
[ 534.301263][ T5051] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 534.301558][ T5051] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 534.301879][ T5051] netif_set_mtu (net/core/dev.c:9652) 
[ 534.302181][ T5051] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 534.302492][ T5051] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 534.302716][ T5051] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 534.303021][ T5051] br_add_if (net/bridge/br_if.c:697) 
[ 534.303255][ T5051] do_set_master (net/core/rtnetlink.c:2948) 
[ 534.303552][ T5051] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 534.303889][ T5051] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 534.304195][ T5051] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 534.304569][ T5051] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 534.304872][ T5051] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 534.305164][ T5051] ? __kernel_text_address (kernel/extable.c:79) 
[ 534.305461][ T5051] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 534.305782][ T5051] ? __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) 
[ 534.306091][ T5051] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 534.306462][ T5051] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 534.306767][ T5051] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 534.307061][ T5051] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 534.307357][ T5051] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 534.307650][ T5051] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 534.307954][ T5051] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 534.308247][ T5051] ? __create_object (mm/kmemleak.c:771) 
[ 534.308544][ T5051] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 534.308854][ T5051] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 534.309154][ T5051] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 534.309518][ T5051] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 534.309828][ T5051] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 534.310131][ T5051] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 534.310424][ T5051] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 534.310721][ T5051] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 534.311027][ T5051] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 534.311327][ T5051] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 534.311623][ T5051] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 534.311929][ T5051] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 534.312227][ T5051] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 534.312526][ T5051] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 534.312837][ T5051] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 534.313134][ T5051] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 534.313434][ T5051] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 534.313765][ T5051] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 534.314059][ T5051] ? 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) 
[ 534.314352][ T5051] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 534.314647][ T5051] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 534.314950][ T5051] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 534.315250][ T5051] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 534.315551][ T5051] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 534.315856][ T5051] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 534.316158][ T5051] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 534.316455][ T5051] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 534.316753][ T5051] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 534.317132][ T5051] ___sys_sendmsg (net/socket.c:2670) 
[ 534.317427][ T5051] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 534.317725][ T5051] ? __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) 
[ 534.318105][ T5051] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 534.318406][ T5051] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 534.318705][ T5051] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 534.319019][ T5051] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 534.319316][ T5051] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 534.319612][ T5051] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 534.319927][ T5051] __sys_sendmsg (net/socket.c:2700) 
[ 534.320221][ T5051] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 534.320584][ T5051] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 534.320899][ T5051] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 534.321196][ T5051] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 534.321494][ T5051] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  534.321873][ T5051] RIP: 0033:0x7f3d0d5311e7
[ 534.322178][ T5051] 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)
[  534.323241][ T5051] RSP: 002b:00007ffef6324088 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  534.323694][ T5051] RAX: ffffffffffffffda RBX: 00007ffef63247c0 RCX: 00007f3d0d5311e7
[  534.324172][ T5051] RDX: 0000000000000000 RSI: 00007ffef63240f0 RDI: 0000000000000005
[  534.324614][ T5051] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  534.325065][ T5051] R10: 000000001d6d1910 R11: 0000000000000246 R12: 0000000000000003
[  534.325510][ T5051] R13: 00000000686e4660 R14: 0000000000499600 R15: 0000000000000000
| [  535.877767][ T5077] ------------[ cut here ]------------
| [ 535.878066][ T5077] WARNING: CPU: 3 PID: 5077 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) 
| [  535.878653][ T5077] Modules linked in: vxlan
| [  535.879560][ T5077] Tainted: [W]=WARN
[  535.879790][ T5077] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 535.880158][ T5077] 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) 
[ 535.880477][ T5077] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  535.881539][ T5077] RSP: 0018:ffffc90005596ef0 EFLAGS: 00010246
[  535.881934][ T5077] RAX: 0000000000000000 RBX: ffff8880188da000 RCX: 0000000000000001
[  535.882389][ T5077] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  535.882865][ T5077] RBP: ffffc90005596fd8 R08: 0000000000000000 R09: 0000000000000000
[  535.883320][ T5077] R10: ffffc90005597008 R11: ffffffffa478d1e0 R12: 1ffff92000ab2de2
[  535.883810][ T5077] R13: 00000000000005aa R14: ffffc90005597008 R15: ffff8880188daf48
[  535.884255][ T5077] FS:  00007fe039a0a800(0000) GS:ffff8880c6d19000(0000) knlGS:0000000000000000
[  535.884785][ T5077] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  535.885157][ T5077] CR2: 00000000004e68a0 CR3: 0000000011ff2004 CR4: 0000000000772ef0
[  535.885601][ T5077] PKRU: 55555554
[  535.885834][ T5077] Call Trace:
[  535.886055][ T5077]  <TASK>
[ 535.886207][ T5077] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 535.886503][ T5077] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 535.886818][ T5077] netif_set_mtu (net/core/dev.c:9652) 
[ 535.887116][ T5077] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 535.887426][ T5077] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 535.887650][ T5077] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 535.887975][ T5077] br_add_if (net/bridge/br_if.c:697) 
[ 535.888210][ T5077] do_set_master (net/core/rtnetlink.c:2948) 
[ 535.888517][ T5077] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 535.888839][ T5077] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 535.889156][ T5077] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 535.889530][ T5077] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 535.889832][ T5077] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 535.890126][ T5077] ? __kernel_text_address (kernel/extable.c:79) 
[ 535.890446][ T5077] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 535.890776][ T5077] ? __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) 
[ 535.891086][ T5077] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 535.891460][ T5077] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 535.891771][ T5077] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 535.892063][ T5077] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 535.892370][ T5077] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 535.892667][ T5077] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 535.892973][ T5077] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 535.893265][ T5077] ? __create_object (mm/kmemleak.c:771) 
[ 535.893559][ T5077] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 535.893893][ T5077] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 535.894190][ T5077] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 535.894566][ T5077] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 535.894878][ T5077] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 535.895191][ T5077] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 535.895491][ T5077] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 535.895803][ T5077] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 535.896105][ T5077] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 535.896396][ T5077] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 535.896692][ T5077] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 535.896994][ T5077] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 535.897290][ T5077] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 535.897587][ T5077] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 535.897895][ T5077] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 535.898190][ T5077] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 535.898495][ T5077] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 535.898810][ T5077] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 535.899105][ T5077] ? 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) 
[ 535.899401][ T5077] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 535.899696][ T5077] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 535.899996][ T5077] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 535.900298][ T5077] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 535.900602][ T5077] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 535.900907][ T5077] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 535.901208][ T5077] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 535.901524][ T5077] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 535.901839][ T5077] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 535.902239][ T5077] ___sys_sendmsg (net/socket.c:2670) 
[ 535.902545][ T5077] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 535.902864][ T5077] ? __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) 
[ 535.903245][ T5077] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 535.903541][ T5077] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 535.903859][ T5077] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 535.904163][ T5077] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 535.904469][ T5077] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 535.904784][ T5077] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 535.905108][ T5077] __sys_sendmsg (net/socket.c:2700) 
[ 535.905413][ T5077] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 535.905805][ T5077] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 535.906114][ T5077] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 535.906411][ T5077] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 535.906707][ T5077] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  535.907080][ T5077] RIP: 0033:0x7fe039bd71e7
[ 535.907393][ T5077] 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)
[  535.908451][ T5077] RSP: 002b:00007fff3c6246a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  535.908905][ T5077] RAX: ffffffffffffffda RBX: 00007fff3c624de0 RCX: 00007fe039bd71e7
[  535.909350][ T5077] RDX: 0000000000000000 RSI: 00007fff3c624710 RDI: 0000000000000005
[  535.909813][ T5077] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  535.910270][ T5077] R10: 0000000030b06910 R11: 0000000000000246 R12: 0000000000000003
[  535.910734][ T5077] R13: 00000000686e4662 R14: 0000000000499600 R15: 0000000000000000
| [  537.764290][ T5103] ------------[ cut here ]------------
| [ 537.764644][ T5103] WARNING: CPU: 2 PID: 5103 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) 
| [  537.765266][ T5103] Modules linked in: vxlan
| [  537.766212][ T5103] Tainted: [W]=WARN
[  537.766453][ T5103] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 537.766852][ T5103] 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) 
[ 537.767168][ T5103] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  537.768351][ T5103] RSP: 0018:ffffc900055c6ef0 EFLAGS: 00010246
[  537.768760][ T5103] RAX: 0000000000000000 RBX: ffff8880188da000 RCX: 0000000000000001
[  537.769222][ T5103] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  537.769682][ T5103] RBP: ffffc900055c6fd8 R08: 0000000000000000 R09: 0000000000000000
[  537.770228][ T5103] R10: ffffc900055c7008 R11: ffffffffa478d1e0 R12: 1ffff92000ab8de2
[  537.770693][ T5103] R13: 0000000000000596 R14: ffffc900055c7008 R15: ffff8880188daf48
[  537.771158][ T5103] FS:  00007f18e2538800(0000) GS:ffff8880c6c99000(0000) knlGS:0000000000000000
[  537.771694][ T5103] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  537.772087][ T5103] CR2: 00000000004e68a0 CR3: 0000000018679003 CR4: 0000000000772ef0
[  537.772549][ T5103] PKRU: 55555554
[  537.772811][ T5103] Call Trace:
[  537.773047][ T5103]  <TASK>
[ 537.773217][ T5103] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 537.773530][ T5103] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 537.773892][ T5103] netif_set_mtu (net/core/dev.c:9652) 
[ 537.774206][ T5103] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 537.774530][ T5103] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 537.774777][ T5103] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 537.775092][ T5103] br_add_if (net/bridge/br_if.c:697) 
[ 537.775343][ T5103] do_set_master (net/core/rtnetlink.c:2948) 
[ 537.775662][ T5103] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 537.775990][ T5103] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 537.776308][ T5103] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 537.776701][ T5103] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 537.777038][ T5103] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 537.777348][ T5103] ? __kernel_text_address (kernel/extable.c:79) 
[ 537.777674][ T5103] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 537.778013][ T5103] ? __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) 
[ 537.778332][ T5103] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 537.778710][ T5103] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 537.779034][ T5103] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 537.779342][ T5103] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 537.779659][ T5103] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 537.779995][ T5103] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 537.780318][ T5103] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 537.780622][ T5103] ? __create_object (mm/kmemleak.c:771) 
[ 537.780954][ T5103] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 537.781265][ T5103] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 537.781587][ T5103] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 537.781991][ T5103] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 537.782320][ T5103] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 537.782634][ T5103] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 537.782968][ T5103] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 537.783283][ T5103] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 537.783605][ T5103] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 537.783925][ T5103] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 537.784236][ T5103] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 537.784542][ T5103] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 537.784868][ T5103] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 537.785183][ T5103] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 537.785506][ T5103] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 537.785835][ T5103] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 537.786147][ T5103] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 537.786467][ T5103] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 537.786783][ T5103] ? 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) 
[ 537.787096][ T5103] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 537.787406][ T5103] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 537.787714][ T5103] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 537.788036][ T5103] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 537.788347][ T5103] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 537.788662][ T5103] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 537.788990][ T5103] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 537.789303][ T5103] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 537.789609][ T5103] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 537.790060][ T5103] ___sys_sendmsg (net/socket.c:2670) 
[ 537.790376][ T5103] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 537.790680][ T5103] ? __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) 
[ 537.791072][ T5103] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 537.791382][ T5103] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 537.791729][ T5103] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 537.792056][ T5103] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 537.792364][ T5103] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 537.792698][ T5103] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 537.793026][ T5103] __sys_sendmsg (net/socket.c:2700) 
[ 537.793346][ T5103] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 537.793767][ T5103] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 537.794101][ T5103] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 537.794418][ T5103] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 537.794738][ T5103] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  537.795129][ T5103] RIP: 0033:0x7f18e27051e7
[ 537.795445][ T5103] 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)
[  537.796565][ T5103] RSP: 002b:00007ffdf3595728 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  537.797046][ T5103] RAX: ffffffffffffffda RBX: 00007ffdf3595e60 RCX: 00007f18e27051e7
[  537.797514][ T5103] RDX: 0000000000000000 RSI: 00007ffdf3595790 RDI: 0000000000000005
[  537.797998][ T5103] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  537.798473][ T5103] R10: 000000002a5f7910 R11: 0000000000000246 R12: 0000000000000003
[  537.798944][ T5103] R13: 00000000686e4664 R14: 0000000000499600 R15: 0000000000000000
| [  539.544065][ T5129] ------------[ cut here ]------------
| [ 539.544364][ T5129] WARNING: CPU: 0 PID: 5129 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) 
| [  539.544958][ T5129] Modules linked in: vxlan
| [  539.546249][ T5129] Tainted: [W]=WARN
[  539.546480][ T5129] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 539.546855][ T5129] 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) 
[ 539.547159][ T5129] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  539.548229][ T5129] RSP: 0018:ffffc90005656ef0 EFLAGS: 00010246
[  539.548603][ T5129] RAX: 0000000000000000 RBX: ffff8880188da000 RCX: 0000000000000001
[  539.549053][ T5129] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  539.549494][ T5129] RBP: ffffc90005656fd8 R08: 0000000000000000 R09: 0000000000000000
[  539.549943][ T5129] R10: ffffc90005657008 R11: ffffffffa478d1e0 R12: 1ffff92000acade2
[  539.550387][ T5129] R13: 0000000000000596 R14: ffffc90005657008 R15: ffff8880188daf48
[  539.550837][ T5129] FS:  00007f01c9e51800(0000) GS:ffff8880c6b99000(0000) knlGS:0000000000000000
[  539.551380][ T5129] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  539.551765][ T5129] CR2: 00000000004e68a0 CR3: 00000000187a4002 CR4: 0000000000772ef0
[  539.552215][ T5129] PKRU: 55555554
[  539.552435][ T5129] Call Trace:
[  539.552656][ T5129]  <TASK>
[ 539.552817][ T5129] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 539.553114][ T5129] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 539.553421][ T5129] netif_set_mtu (net/core/dev.c:9652) 
[ 539.553729][ T5129] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 539.554059][ T5129] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 539.554285][ T5129] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 539.554590][ T5129] br_add_if (net/bridge/br_if.c:697) 
[ 539.554832][ T5129] do_set_master (net/core/rtnetlink.c:2948) 
[ 539.555126][ T5129] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 539.555424][ T5129] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 539.555724][ T5129] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 539.556107][ T5129] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 539.556402][ T5129] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 539.556700][ T5129] ? __kernel_text_address (kernel/extable.c:79) 
[ 539.557002][ T5129] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 539.557300][ T5129] ? __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) 
[ 539.557594][ T5129] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 539.557966][ T5129] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 539.558264][ T5129] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 539.558555][ T5129] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 539.558874][ T5129] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 539.559170][ T5129] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 539.559464][ T5129] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 539.559767][ T5129] ? __create_object (mm/kmemleak.c:771) 
[ 539.560062][ T5129] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 539.560359][ T5129] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 539.560651][ T5129] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 539.561027][ T5129] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 539.561329][ T5129] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 539.561629][ T5129] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 539.561929][ T5129] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 539.562230][ T5129] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 539.562525][ T5129] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 539.562825][ T5129] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 539.563146][ T5129] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 539.563448][ T5129] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 539.563765][ T5129] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 539.564063][ T5129] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 539.564366][ T5129] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 539.564660][ T5129] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 539.564964][ T5129] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 539.565272][ T5129] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 539.565570][ T5129] ? 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) 
[ 539.565875][ T5129] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 539.566174][ T5129] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 539.566468][ T5129] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 539.566779][ T5129] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 539.567076][ T5129] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 539.567373][ T5129] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 539.567676][ T5129] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 539.567993][ T5129] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 539.568285][ T5129] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 539.568666][ T5129] ___sys_sendmsg (net/socket.c:2670) 
[ 539.568974][ T5129] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 539.569268][ T5129] ? __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) 
[ 539.569640][ T5129] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 539.569953][ T5129] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 539.570250][ T5129] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 539.570551][ T5129] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 539.570857][ T5129] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 539.571151][ T5129] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 539.571453][ T5129] __sys_sendmsg (net/socket.c:2700) 
[ 539.571762][ T5129] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 539.572126][ T5129] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 539.572439][ T5129] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 539.572735][ T5129] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 539.573043][ T5129] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  539.573406][ T5129] RIP: 0033:0x7f01ca01e1e7
[ 539.573716][ T5129] 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)
[  539.574787][ T5129] RSP: 002b:00007ffed211a768 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  539.575229][ T5129] RAX: ffffffffffffffda RBX: 00007ffed211aea0 RCX: 00007f01ca01e1e7
[  539.575671][ T5129] RDX: 0000000000000000 RSI: 00007ffed211a7d0 RDI: 0000000000000005
[  539.576123][ T5129] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  539.576571][ T5129] R10: 000000002ef59910 R11: 0000000000000246 R12: 0000000000000003
[  539.577024][ T5129] R13: 00000000686e4665 R14: 0000000000499600 R15: 0000000000000000
| [  541.384673][ T5154] ------------[ cut here ]------------
| [ 541.386260][ T5154] WARNING: CPU: 2 PID: 5154 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) 
| [  541.386879][ T5154] Modules linked in: vxlan
| [  541.387812][ T5154] Tainted: [W]=WARN
[  541.388060][ T5154] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 541.388440][ T5154] 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) 
[ 541.388768][ T5154] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  541.389843][ T5154] RSP: 0018:ffffc90005776ef0 EFLAGS: 00010246
[  541.390323][ T5154] RAX: 0000000000000000 RBX: ffff88801497a000 RCX: 0000000000000001
[  541.390793][ T5154] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  541.391269][ T5154] RBP: ffffc90005776fd8 R08: 0000000000000000 R09: 0000000000000000
[  541.391725][ T5154] R10: ffffc90005777008 R11: ffffffffa478d1e0 R12: 1ffff92000aeede2
[  541.392191][ T5154] R13: 00000000000005dc R14: ffffc90005777008 R15: ffff88801497af48
[  541.392653][ T5154] FS:  00007f4d28928800(0000) GS:ffff8880c6c99000(0000) knlGS:0000000000000000
[  541.393197][ T5154] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  541.393595][ T5154] CR2: 00000000004e6890 CR3: 0000000015a1e004 CR4: 0000000000772ef0
[  541.394076][ T5154] PKRU: 55555554
[  541.394309][ T5154] Call Trace:
[  541.394543][ T5154]  <TASK>
[ 541.394711][ T5154] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 541.395031][ T5154] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 541.395354][ T5154] netif_set_mtu (net/core/dev.c:9652) 
[ 541.395662][ T5154] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 541.396001][ T5154] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 541.396240][ T5154] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 541.396560][ T5154] br_add_if (net/bridge/br_if.c:697) 
[ 541.396814][ T5154] do_set_master (net/core/rtnetlink.c:2948) 
[ 541.397124][ T5154] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 541.397434][ T5154] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 541.397760][ T5154] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 541.398146][ T5154] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 541.398452][ T5154] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 541.398767][ T5154] ? __kernel_text_address (kernel/extable.c:79) 
[ 541.399079][ T5154] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 541.399386][ T5154] ? __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) 
[ 541.399694][ T5154] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 541.400078][ T5154] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 541.400394][ T5154] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 541.400697][ T5154] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 541.401037][ T5154] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 541.401344][ T5154] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 541.401652][ T5154] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 541.401963][ T5154] ? __create_object (mm/kmemleak.c:771) 
[ 541.402271][ T5154] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 541.402577][ T5154] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 541.402892][ T5154] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 541.403286][ T5154] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 541.403612][ T5154] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 541.403935][ T5154] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 541.404243][ T5154] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 541.404557][ T5154] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 541.404874][ T5154] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 541.405181][ T5154] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 541.405493][ T5154] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 541.405806][ T5154] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 541.406125][ T5154] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 541.406440][ T5154] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 541.406761][ T5154] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 541.407069][ T5154] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 541.407377][ T5154] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 541.407696][ T5154] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 541.408014][ T5154] ? 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) 
[ 541.408334][ T5154] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 541.408642][ T5154] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 541.408956][ T5154] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 541.409270][ T5154] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 541.409585][ T5154] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 541.409900][ T5154] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 541.410214][ T5154] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 541.410528][ T5154] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 541.410844][ T5154] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 541.411229][ T5154] ___sys_sendmsg (net/socket.c:2670) 
[ 541.411534][ T5154] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 541.411852][ T5154] ? __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) 
[ 541.412239][ T5154] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 541.412547][ T5154] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 541.412870][ T5154] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 541.413183][ T5154] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 541.413497][ T5154] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 541.413825][ T5154] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 541.414142][ T5154] __sys_sendmsg (net/socket.c:2700) 
[ 541.414445][ T5154] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 541.414831][ T5154] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 541.415158][ T5154] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 541.415471][ T5154] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 541.415795][ T5154] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  541.416175][ T5154] RIP: 0033:0x7f4d28af51e7
[ 541.416494][ T5154] 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)
[  541.417567][ T5154] RSP: 002b:00007ffe70acd9d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  541.418032][ T5154] RAX: ffffffffffffffda RBX: 00007ffe70ace110 RCX: 00007f4d28af51e7
[  541.418484][ T5154] RDX: 0000000000000000 RSI: 00007ffe70acda40 RDI: 0000000000000005
[  541.418945][ T5154] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  541.419401][ T5154] R10: 0000000007550910 R11: 0000000000000246 R12: 0000000000000003
[  541.419864][ T5154] R13: 00000000686e4667 R14: 0000000000499600 R15: 0000000000000000
| [  542.939947][ T5180] ------------[ cut here ]------------
| [ 542.940462][ T5180] WARNING: CPU: 1 PID: 5180 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) 
| [  542.941475][ T5180] Modules linked in: vxlan
| [  542.943062][ T5180] Tainted: [W]=WARN
[  542.943455][ T5180] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 542.943939][ T5180] 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) 
[ 542.944252][ T5180] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  542.945350][ T5180] RSP: 0018:ffffc90005806ef0 EFLAGS: 00010246
[  542.945729][ T5180] RAX: 0000000000000000 RBX: ffff88801497a000 RCX: 0000000000000001
[  542.946210][ T5180] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  542.946671][ T5180] RBP: ffffc90005806fd8 R08: 0000000000000000 R09: 0000000000000000
[  542.947124][ T5180] R10: ffffc90005807008 R11: ffffffffa478d1e0 R12: 1ffff92000b00de2
[  542.947571][ T5180] R13: 00000000000005aa R14: ffffc90005807008 R15: ffff88801497af48
[  542.948048][ T5180] FS:  00007f1fdf611800(0000) GS:ffff8880c6c19000(0000) knlGS:0000000000000000
[  542.948576][ T5180] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  542.948957][ T5180] CR2: 00000000004e6890 CR3: 000000001a625002 CR4: 0000000000772ef0
[  542.949418][ T5180] PKRU: 55555554
[  542.949638][ T5180] Call Trace:
[  542.949869][ T5180]  <TASK>
[ 542.950023][ T5180] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 542.950336][ T5180] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 542.950642][ T5180] netif_set_mtu (net/core/dev.c:9652) 
[ 542.950947][ T5180] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 542.951256][ T5180] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 542.951478][ T5180] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 542.951793][ T5180] br_add_if (net/bridge/br_if.c:697) 
[ 542.952029][ T5180] do_set_master (net/core/rtnetlink.c:2948) 
[ 542.952335][ T5180] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 542.952636][ T5180] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 542.952954][ T5180] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 542.953328][ T5180] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 542.953635][ T5180] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 542.953943][ T5180] ? __kernel_text_address (kernel/extable.c:79) 
[ 542.954248][ T5180] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 542.954553][ T5180] ? __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) 
[ 542.954858][ T5180] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 542.955244][ T5180] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 542.955541][ T5180] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 542.955854][ T5180] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 542.956150][ T5180] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 542.956552][ T5180] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 542.956859][ T5180] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 542.957172][ T5180] ? __create_object (mm/kmemleak.c:771) 
[ 542.957474][ T5180] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 542.957792][ T5180] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 542.958097][ T5180] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 542.958469][ T5180] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 542.958780][ T5180] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 542.959083][ T5180] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 542.959383][ T5180] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 542.959681][ T5180] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 542.959995][ T5180] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 542.960305][ T5180] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 542.960601][ T5180] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 542.960917][ T5180] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 542.961216][ T5180] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 542.961529][ T5180] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 542.961859][ T5180] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 542.962162][ T5180] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 542.962466][ T5180] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 542.962788][ T5180] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 542.963091][ T5180] ? 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) 
[ 542.963399][ T5180] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 542.963721][ T5180] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 542.964054][ T5180] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 542.964369][ T5180] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 542.964665][ T5180] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 542.964982][ T5180] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 542.965285][ T5180] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 542.965591][ T5180] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 542.965892][ T5180] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 542.966280][ T5180] ___sys_sendmsg (net/socket.c:2670) 
[ 542.966583][ T5180] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 542.966883][ T5180] ? __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) 
[ 542.967265][ T5180] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 542.967562][ T5180] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 542.967891][ T5180] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 542.968193][ T5180] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 542.968539][ T5180] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 542.968843][ T5180] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 542.969144][ T5180] __sys_sendmsg (net/socket.c:2700) 
[ 542.969439][ T5180] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 542.969829][ T5180] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 542.970138][ T5180] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 542.970437][ T5180] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 542.970734][ T5180] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  542.971108][ T5180] RIP: 0033:0x7f1fdf7de1e7
[ 542.971416][ T5180] 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)
[  542.972515][ T5180] RSP: 002b:00007ffe6fd24548 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  542.972987][ T5180] RAX: ffffffffffffffda RBX: 00007ffe6fd24c80 RCX: 00007f1fdf7de1e7
[  542.973434][ T5180] RDX: 0000000000000000 RSI: 00007ffe6fd245b0 RDI: 0000000000000005
[  542.973895][ T5180] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  542.974335][ T5180] R10: 0000000035efd910 R11: 0000000000000246 R12: 0000000000000003
[  542.974785][ T5180] R13: 00000000686e4669 R14: 0000000000499600 R15: 0000000000000000
| [  546.843613][ T5231] ------------[ cut here ]------------
| [ 546.843950][ T5231] WARNING: CPU: 2 PID: 5231 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) 
| [  546.844560][ T5231] Modules linked in: vxlan
| [  546.845503][ T5231] Tainted: [W]=WARN
[  546.845742][ T5231] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 546.846140][ T5231] 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) 
[ 546.846456][ T5231] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  546.847532][ T5231] RSP: 0018:ffffc90005986ef0 EFLAGS: 00010246
[  546.847934][ T5231] RAX: 0000000000000000 RBX: ffff888019ef2000 RCX: 0000000000000001
[  546.848394][ T5231] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  546.848860][ T5231] RBP: ffffc90005986fd8 R08: 0000000000000000 R09: 0000000000000000
[  546.849322][ T5231] R10: ffffc90005987008 R11: ffffffffa478d1e0 R12: 1ffff92000b30de2
[  546.849791][ T5231] R13: 00000000000005dc R14: ffffc90005987008 R15: ffff888019ef2f48
[  546.850244][ T5231] FS:  00007f1e3c03f800(0000) GS:ffff8880c6c99000(0000) knlGS:0000000000000000
[  546.850798][ T5231] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  546.851183][ T5231] CR2: 00000000004e6898 CR3: 0000000015f37002 CR4: 0000000000772ef0
[  546.851637][ T5231] PKRU: 55555554
[  546.851882][ T5231] Call Trace:
[  546.852113][ T5231]  <TASK>
[ 546.852278][ T5231] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 546.852587][ T5231] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 546.852925][ T5231] netif_set_mtu (net/core/dev.c:9652) 
[ 546.853232][ T5231] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 546.853553][ T5231] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 546.853812][ T5231] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 546.854126][ T5231] br_add_if (net/bridge/br_if.c:697) 
[ 546.854380][ T5231] do_set_master (net/core/rtnetlink.c:2948) 
[ 546.854688][ T5231] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 546.855011][ T5231] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 546.855330][ T5231] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 546.855718][ T5231] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 546.856052][ T5231] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 546.856359][ T5231] ? __kernel_text_address (kernel/extable.c:79) 
[ 546.856667][ T5231] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 546.856989][ T5231] ? __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) 
[ 546.857299][ T5231] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 546.857682][ T5231] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 546.858007][ T5231] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 546.858321][ T5231] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 546.858626][ T5231] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 546.858947][ T5231] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 546.859256][ T5231] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 546.859563][ T5231] ? __create_object (mm/kmemleak.c:771) 
[ 546.859886][ T5231] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 546.860196][ T5231] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 546.860502][ T5231] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 546.860892][ T5231] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 546.861206][ T5231] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 546.861520][ T5231] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 546.861838][ T5231] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 546.862152][ T5231] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 546.862465][ T5231] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 546.862781][ T5231] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 546.863092][ T5231] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 546.863397][ T5231] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 546.863718][ T5231] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 546.864043][ T5231] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 546.864356][ T5231] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 546.864663][ T5231] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 546.864993][ T5231] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 546.865402][ T5231] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 546.865717][ T5231] ? 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) 
[ 546.866038][ T5231] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 546.866352][ T5231] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 546.866656][ T5231] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 546.866987][ T5231] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 546.867297][ T5231] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 546.867607][ T5231] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 546.867932][ T5231] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 546.868244][ T5231] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 546.868549][ T5231] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 546.868953][ T5231] ___sys_sendmsg (net/socket.c:2670) 
[ 546.869263][ T5231] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 546.869579][ T5231] ? __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) 
[ 546.869968][ T5231] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 546.870284][ T5231] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 546.870596][ T5231] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 546.870926][ T5231] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 546.871236][ T5231] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 546.871544][ T5231] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 546.871874][ T5231] __sys_sendmsg (net/socket.c:2700) 
[ 546.872181][ T5231] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 546.872559][ T5231] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 546.872897][ T5231] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 546.873207][ T5231] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 546.873518][ T5231] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  546.873924][ T5231] RIP: 0033:0x7f1e3c20c1e7
[ 546.874252][ T5231] 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)
[  546.875325][ T5231] RSP: 002b:00007fff47a09198 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  546.875793][ T5231] RAX: ffffffffffffffda RBX: 00007fff47a098d0 RCX: 00007f1e3c20c1e7
[  546.876254][ T5231] RDX: 0000000000000000 RSI: 00007fff47a09200 RDI: 0000000000000005
[  546.876706][ T5231] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  546.877175][ T5231] R10: 0000000010a2f910 R11: 0000000000000246 R12: 0000000000000003
[  546.877633][ T5231] R13: 00000000686e466d R14: 0000000000499600 R15: 0000000000000000
| [  548.428877][ T5257] ------------[ cut here ]------------
| [ 548.429176][ T5257] WARNING: CPU: 0 PID: 5257 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) 
| [  548.429785][ T5257] Modules linked in: vxlan
| [  548.430704][ T5257] Tainted: [W]=WARN
[  548.431099][ T5257] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 548.431471][ T5257] 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) 
[ 548.431779][ T5257] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  548.432848][ T5257] RSP: 0018:ffffc90005a06ef0 EFLAGS: 00010246
[  548.433226][ T5257] RAX: 0000000000000000 RBX: ffff888019ef2000 RCX: 0000000000000001
[  548.433672][ T5257] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  548.434139][ T5257] RBP: ffffc90005a06fd8 R08: 0000000000000000 R09: 0000000000000000
[  548.434586][ T5257] R10: ffffc90005a07008 R11: ffffffffa50ceab8 R12: 1ffff92000b40de2
[  548.435034][ T5257] R13: 0000000000000596 R14: ffffc90005a07008 R15: ffff888019ef2f48
[  548.435475][ T5257] FS:  00007fe478d3e800(0000) GS:ffff8880c6b99000(0000) knlGS:0000000000000000
[  548.436001][ T5257] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  548.436376][ T5257] CR2: 00000000004e6898 CR3: 0000000019c3d002 CR4: 0000000000772ef0
[  548.436827][ T5257] PKRU: 55555554
[  548.437046][ T5257] Call Trace:
[  548.437270][ T5257]  <TASK>
[ 548.437424][ T5257] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 548.437724][ T5257] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 548.438040][ T5257] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 548.438420][ T5257] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 548.438719][ T5257] netif_set_mtu (net/core/dev.c:9652) 
[ 548.439023][ T5257] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 548.439330][ T5257] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 548.439706][ T5257] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 548.439939][ T5257] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 548.440239][ T5257] br_add_if (net/bridge/br_if.c:697) 
[ 548.440476][ T5257] do_set_master (net/core/rtnetlink.c:2948) 
[ 548.440776][ T5257] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 548.441074][ T5257] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 548.441379][ T5257] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 548.441780][ T5257] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 548.442079][ T5257] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 548.442377][ T5257] ? __kernel_text_address (kernel/extable.c:79) 
[ 548.442681][ T5257] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 548.443008][ T5257] ? __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) 
[ 548.443306][ T5257] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 548.443687][ T5257] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 548.443995][ T5257] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 548.444292][ T5257] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 548.444585][ T5257] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 548.444896][ T5257] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 548.445200][ T5257] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 548.445490][ T5257] ? __create_object (mm/kmemleak.c:771) 
[ 548.445807][ T5257] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 548.446107][ T5257] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 548.446401][ T5257] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 548.446775][ T5257] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 548.447082][ T5257] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 548.447387][ T5257] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 548.447682][ T5257] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 548.447992][ T5257] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 548.448293][ T5257] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 548.448582][ T5257] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 548.448886][ T5257] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 548.449180][ T5257] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 548.449480][ T5257] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 548.449813][ T5257] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 548.450126][ T5257] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 548.450420][ T5257] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 548.450714][ T5257] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 548.451031][ T5257] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 548.451322][ T5257] ? 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) 
[ 548.451621][ T5257] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 548.451931][ T5257] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 548.452226][ T5257] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 548.452525][ T5257] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 548.452833][ T5257] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 548.453130][ T5257] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 548.453429][ T5257] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 548.453734][ T5257] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 548.454058][ T5257] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 548.454437][ T5257] ___sys_sendmsg (net/socket.c:2670) 
[ 548.454730][ T5257] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 548.455034][ T5257] ? __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) 
[ 548.455405][ T5257] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 548.455704][ T5257] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 548.456019][ T5257] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 548.456320][ T5257] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 548.456613][ T5257] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 548.456914][ T5257] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 548.457217][ T5257] __sys_sendmsg (net/socket.c:2700) 
[ 548.457507][ T5257] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 548.457894][ T5257] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 548.458212][ T5257] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 548.458513][ T5257] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 548.458822][ T5257] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  548.459188][ T5257] RIP: 0033:0x7fe478f0b1e7
[ 548.459494][ T5257] 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)
[  548.460564][ T5257] RSP: 002b:00007ffcf949f698 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  548.461019][ T5257] RAX: ffffffffffffffda RBX: 00007ffcf949fdd0 RCX: 00007fe478f0b1e7
[  548.461463][ T5257] RDX: 0000000000000000 RSI: 00007ffcf949f700 RDI: 0000000000000005
[  548.461924][ T5257] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  548.462376][ T5257] R10: 0000000011149910 R11: 0000000000000246 R12: 0000000000000003
[  548.462824][ T5257] R13: 00000000686e466e R14: 0000000000499600 R15: 0000000000000000
| [  552.115894][ T5308] ------------[ cut here ]------------
| [ 552.116240][ T5308] WARNING: CPU: 0 PID: 5308 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) 
| [  552.116892][ T5308] Modules linked in: vxlan
| [  552.117896][ T5308] Tainted: [W]=WARN
[  552.118144][ T5308] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 552.118557][ T5308] 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) 
[ 552.118903][ T5308] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  552.120097][ T5308] RSP: 0018:ffffc90005aa6ef0 EFLAGS: 00010246
[  552.120517][ T5308] RAX: 0000000000000000 RBX: ffff888019d52000 RCX: 0000000000000001
[  552.121023][ T5308] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  552.121524][ T5308] RBP: ffffc90005aa6fd8 R08: 0000000000000000 R09: 0000000000000000
[  552.122024][ T5308] R10: ffffc90005aa7008 R11: ffffffffa478d1e0 R12: 1ffff92000b54de2
[  552.122537][ T5308] R13: 00000000000005dc R14: ffffc90005aa7008 R15: ffff888019d52f48
[  552.123038][ T5308] FS:  00007fbb71a8e800(0000) GS:ffff8880c6b99000(0000) knlGS:0000000000000000
[  552.123623][ T5308] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  552.124046][ T5308] CR2: 00000000004e68a0 CR3: 00000000140bc004 CR4: 0000000000772ef0
[  552.124542][ T5308] PKRU: 55555554
[  552.124793][ T5308] Call Trace:
[  552.125040][ T5308]  <TASK>
[ 552.125208][ T5308] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 552.125539][ T5308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 552.125892][ T5308] netif_set_mtu (net/core/dev.c:9652) 
[ 552.126227][ T5308] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 552.126569][ T5308] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 552.126828][ T5308] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 552.127158][ T5308] br_add_if (net/bridge/br_if.c:697) 
[ 552.127414][ T5308] do_set_master (net/core/rtnetlink.c:2948) 
[ 552.127738][ T5308] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 552.128080][ T5308] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 552.128419][ T5308] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 552.128843][ T5308] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 552.129172][ T5308] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 552.129496][ T5308] ? __kernel_text_address (kernel/extable.c:79) 
[ 552.129838][ T5308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 552.130167][ T5308] ? __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) 
[ 552.130498][ T5308] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 552.130919][ T5308] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 552.131247][ T5308] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 552.131573][ T5308] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 552.131909][ T5308] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 552.132237][ T5308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 552.132565][ T5308] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 552.132899][ T5308] ? __create_object (mm/kmemleak.c:771) 
[ 552.133228][ T5308] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 552.133563][ T5308] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 552.133907][ T5308] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 552.134313][ T5308] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 552.134651][ T5308] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 552.134993][ T5308] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 552.135320][ T5308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 552.135650][ T5308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 552.135992][ T5308] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 552.136320][ T5308] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 552.136648][ T5308] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 552.136983][ T5308] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 552.137313][ T5308] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 552.137645][ T5308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 552.137985][ T5308] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 552.138312][ T5308] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 552.138645][ T5308] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 552.138992][ T5308] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 552.139319][ T5308] ? 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) 
[ 552.139644][ T5308] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 552.139984][ T5308] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 552.140312][ T5308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 552.140646][ T5308] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 552.140990][ T5308] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 552.141320][ T5308] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 552.141649][ T5308] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 552.141990][ T5308] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 552.142314][ T5308] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 552.142730][ T5308] ___sys_sendmsg (net/socket.c:2670) 
[ 552.143062][ T5308] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 552.143394][ T5308] ? __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) 
[ 552.143818][ T5308] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 552.144149][ T5308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 552.144478][ T5308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 552.144819][ T5308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 552.145143][ T5308] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 552.145466][ T5308] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 552.145823][ T5308] __sys_sendmsg (net/socket.c:2700) 
[ 552.146151][ T5308] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 552.146556][ T5308] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 552.146903][ T5308] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 552.147231][ T5308] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 552.147557][ T5308] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  552.147980][ T5308] RIP: 0033:0x7fbb71c5b1e7
[ 552.148333][ T5308] 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)
[  552.149500][ T5308] RSP: 002b:00007ffd643386e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  552.150028][ T5308] RAX: ffffffffffffffda RBX: 00007ffd64338e20 RCX: 00007fbb71c5b1e7
[  552.150522][ T5308] RDX: 0000000000000000 RSI: 00007ffd64338750 RDI: 0000000000000005
[  552.151017][ T5308] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  552.151506][ T5308] R10: 000000001ced6910 R11: 0000000000000246 R12: 0000000000000003
[  552.152002][ T5308] R13: 00000000686e4672 R14: 0000000000499600 R15: 0000000000000000
| [  553.758974][ T5334] ------------[ cut here ]------------
| [ 553.759293][ T5334] WARNING: CPU: 0 PID: 5334 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) 
| [  553.761063][ T5334] Modules linked in: vxlan
| [  553.762011][ T5334] Tainted: [W]=WARN
[  553.762245][ T5334] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 553.762636][ T5334] 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) 
[ 553.762969][ T5334] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  553.764091][ T5334] RSP: 0018:ffffc90005c66ef0 EFLAGS: 00010246
[  553.764482][ T5334] RAX: 0000000000000000 RBX: ffff888019d52000 RCX: 0000000000000001
[  553.764960][ T5334] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  553.765421][ T5334] RBP: ffffc90005c66fd8 R08: 0000000000000000 R09: 0000000000000000
[  553.765892][ T5334] R10: ffffc90005c67008 R11: ffffffffa50ceab8 R12: 1ffff92000b8cde2
[  553.766353][ T5334] R13: 00000000000005aa R14: ffffc90005c67008 R15: ffff888019d52f48
[  553.766825][ T5334] FS:  00007f0cc435b800(0000) GS:ffff8880c6b99000(0000) knlGS:0000000000000000
[  553.767366][ T5334] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  553.767763][ T5334] CR2: 00000000004e68a0 CR3: 000000001b20f006 CR4: 0000000000772ef0
[  553.768238][ T5334] PKRU: 55555554
[  553.768468][ T5334] Call Trace:
[  553.768698][ T5334]  <TASK>
[ 553.769018][ T5334] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 553.769333][ T5334] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 553.769639][ T5334] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 553.770163][ T5334] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 553.770474][ T5334] netif_set_mtu (net/core/dev.c:9652) 
[ 553.770844][ T5334] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 553.771164][ T5334] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 553.771557][ T5334] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 553.771830][ T5334] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 553.772148][ T5334] br_add_if (net/bridge/br_if.c:697) 
[ 553.772391][ T5334] do_set_master (net/core/rtnetlink.c:2948) 
[ 553.772695][ T5334] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 553.773018][ T5334] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 553.773334][ T5334] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 553.773739][ T5334] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 553.774075][ T5334] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 553.774383][ T5334] ? __kernel_text_address (kernel/extable.c:79) 
[ 553.774693][ T5334] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 553.775018][ T5334] ? __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) 
[ 553.775333][ T5334] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 553.775716][ T5334] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 553.776063][ T5334] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 553.776376][ T5334] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 553.776684][ T5334] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 553.777005][ T5334] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 553.777320][ T5334] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 553.777625][ T5334] ? __create_object (mm/kmemleak.c:771) 
[ 553.777940][ T5334] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 553.778247][ T5334] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 553.778563][ T5334] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 553.778954][ T5334] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 553.779272][ T5334] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 553.779587][ T5334] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 553.779924][ T5334] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 553.780244][ T5334] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 553.780553][ T5334] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 553.780873][ T5334] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 553.781187][ T5334] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 553.781497][ T5334] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 553.781816][ T5334] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 553.782130][ T5334] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 553.782448][ T5334] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 553.782774][ T5334] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 553.783087][ T5334] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 553.783416][ T5334] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 553.783731][ T5334] ? 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) 
[ 553.784069][ T5334] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 553.784386][ T5334] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 553.784695][ T5334] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 553.785017][ T5334] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 553.785330][ T5334] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 553.785648][ T5334] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 553.785976][ T5334] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 553.786287][ T5334] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 553.786598][ T5334] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 553.787004][ T5334] ___sys_sendmsg (net/socket.c:2670) 
[ 553.787318][ T5334] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 553.787623][ T5334] ? __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) 
[ 553.788045][ T5334] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 553.788367][ T5334] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 553.788679][ T5334] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 553.789002][ T5334] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 553.789309][ T5334] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 553.789616][ T5334] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 553.789939][ T5334] __sys_sendmsg (net/socket.c:2700) 
[ 553.790254][ T5334] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 553.790635][ T5334] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 553.790969][ T5334] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 553.791287][ T5334] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 553.791598][ T5334] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  553.792008][ T5334] RIP: 0033:0x7f0cc45281e7
[ 553.792334][ T5334] 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)
[  553.793454][ T5334] RSP: 002b:00007ffcc187a6d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  553.793937][ T5334] RAX: ffffffffffffffda RBX: 00007ffcc187ae10 RCX: 00007f0cc45281e7
[  553.794407][ T5334] RDX: 0000000000000000 RSI: 00007ffcc187a740 RDI: 0000000000000005
[  553.794885][ T5334] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  553.795346][ T5334] R10: 0000000003955910 R11: 0000000000000246 R12: 0000000000000003
[  553.795834][ T5334] R13: 00000000686e4674 R14: 0000000000499600 R15: 0000000000000000
| [  555.668232][ T5360] ------------[ cut here ]------------
| [ 555.668538][ T5360] WARNING: CPU: 0 PID: 5360 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) 
| [  555.669137][ T5360] Modules linked in: vxlan
| [  555.670056][ T5360] Tainted: [W]=WARN
[  555.670288][ T5360] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 555.670671][ T5360] 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) 
[ 555.670993][ T5360] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  555.672072][ T5360] RSP: 0018:ffffc90005b56ef0 EFLAGS: 00010246
[  555.672447][ T5360] RAX: 0000000000000000 RBX: ffff888019d52000 RCX: 0000000000000001
[  555.672910][ T5360] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  555.673360][ T5360] RBP: ffffc90005b56fd8 R08: 0000000000000000 R09: 0000000000000000
[  555.673825][ T5360] R10: ffffc90005b57008 R11: ffffffffa50ceab8 R12: 1ffff92000b6ade2
[  555.674270][ T5360] R13: 0000000000000596 R14: ffffc90005b57008 R15: ffff888019d52f48
[  555.674718][ T5360] FS:  00007f2f13358800(0000) GS:ffff8880c6b99000(0000) knlGS:0000000000000000
[  555.675260][ T5360] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  555.675642][ T5360] CR2: 00000000004e68a0 CR3: 000000001b125002 CR4: 0000000000772ef0
[  555.676106][ T5360] PKRU: 55555554
[  555.676333][ T5360] Call Trace:
[  555.676561][ T5360]  <TASK>
[ 555.676718][ T5360] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 555.677033][ T5360] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 555.677342][ T5360] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 555.677715][ T5360] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 555.678036][ T5360] netif_set_mtu (net/core/dev.c:9652) 
[ 555.678338][ T5360] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 555.678647][ T5360] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 555.679039][ T5360] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 555.679271][ T5360] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 555.679574][ T5360] br_add_if (net/bridge/br_if.c:697) 
[ 555.679822][ T5360] do_set_master (net/core/rtnetlink.c:2948) 
[ 555.680121][ T5360] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 555.680426][ T5360] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 555.680735][ T5360] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 555.681135][ T5360] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 555.681455][ T5360] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 555.681759][ T5360] ? __kernel_text_address (kernel/extable.c:79) 
[ 555.682060][ T5360] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 555.682362][ T5360] ? __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) 
[ 555.682660][ T5360] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 555.683042][ T5360] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 555.683354][ T5360] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 555.683658][ T5360] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 555.683974][ T5360] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 555.684273][ T5360] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 555.684573][ T5360] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 555.684876][ T5360] ? __create_object (mm/kmemleak.c:771) 
[ 555.685178][ T5360] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 555.685475][ T5360] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 555.685780][ T5360] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 555.686154][ T5360] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 555.686459][ T5360] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 555.686770][ T5360] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 555.687068][ T5360] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 555.687371][ T5360] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 555.687671][ T5360] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 555.687984][ T5360] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 555.688285][ T5360] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 555.688590][ T5360] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 555.688904][ T5360] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 555.689208][ T5360] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 555.689510][ T5360] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 555.689814][ T5360] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 555.690113][ T5360] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 555.690421][ T5360] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 555.690726][ T5360] ? 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) 
[ 555.691035][ T5360] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 555.691336][ T5360] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 555.691632][ T5360] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 555.691961][ T5360] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 555.692262][ T5360] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 555.692560][ T5360] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 555.692883][ T5360] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 555.693181][ T5360] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 555.693476][ T5360] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 555.693877][ T5360] ___sys_sendmsg (net/socket.c:2670) 
[ 555.694171][ T5360] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 555.694466][ T5360] ? __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) 
[ 555.694842][ T5360] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 555.695148][ T5360] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 555.695450][ T5360] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 555.695759][ T5360] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 555.696054][ T5360] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 555.696350][ T5360] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 555.696654][ T5360] __sys_sendmsg (net/socket.c:2700) 
[ 555.696955][ T5360] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 555.697329][ T5360] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 555.697650][ T5360] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 555.697959][ T5360] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 555.698259][ T5360] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  555.698627][ T5360] RIP: 0033:0x7f2f135251e7
[ 555.698950][ T5360] 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)
[  555.700023][ T5360] RSP: 002b:00007fffa5f88418 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  555.700470][ T5360] RAX: ffffffffffffffda RBX: 00007fffa5f88b50 RCX: 00007f2f135251e7
[  555.700925][ T5360] RDX: 0000000000000000 RSI: 00007fffa5f88480 RDI: 0000000000000005
[  555.701370][ T5360] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  555.701830][ T5360] R10: 0000000024d7a910 R11: 0000000000000246 R12: 0000000000000003
[  555.702283][ T5360] R13: 00000000686e4676 R14: 0000000000499600 R15: 0000000000000000
| [  557.599659][ T5386] ------------[ cut here ]------------
| [ 557.600009][ T5386] WARNING: CPU: 2 PID: 5386 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) 
| [  557.600638][ T5386] Modules linked in: vxlan
| [  557.601605][ T5386] Tainted: [W]=WARN
[  557.601855][ T5386] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 557.602240][ T5386] 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) 
[ 557.602567][ T5386] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  557.603669][ T5386] RSP: 0018:ffffc90005d96ef0 EFLAGS: 00010246
[  557.604067][ T5386] RAX: 0000000000000000 RBX: ffff888019d52000 RCX: 0000000000000001
[  557.604524][ T5386] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  557.605010][ T5386] RBP: ffffc90005d96fd8 R08: 0000000000000000 R09: 0000000000000000
[  557.605478][ T5386] R10: ffffc90005d97008 R11: ffffffffa50ceab8 R12: 1ffff92000bb2de2
[  557.606087][ T5386] R13: 0000000000000596 R14: ffffc90005d97008 R15: ffff888019d52f48
[  557.606774][ T5386] FS:  00007f3e6fb61800(0000) GS:ffff8880c6c99000(0000) knlGS:0000000000000000
[  557.607510][ T5386] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  557.608076][ T5386] CR2: 00000000004e68a0 CR3: 0000000019c5a005 CR4: 0000000000772ef0
[  557.608554][ T5386] PKRU: 55555554
[  557.608812][ T5386] Call Trace:
[  557.609056][ T5386]  <TASK>
[ 557.609225][ T5386] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 557.609543][ T5386] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 557.609867][ T5386] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 557.610256][ T5386] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 557.610568][ T5386] netif_set_mtu (net/core/dev.c:9652) 
[ 557.610892][ T5386] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 557.611216][ T5386] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 557.611605][ T5386] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 557.611857][ T5386] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 557.612170][ T5386] br_add_if (net/bridge/br_if.c:697) 
[ 557.612436][ T5386] do_set_master (net/core/rtnetlink.c:2948) 
[ 557.612771][ T5386] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 557.613094][ T5386] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 557.613413][ T5386] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 557.613829][ T5386] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 557.614138][ T5386] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 557.614448][ T5386] ? __kernel_text_address (kernel/extable.c:79) 
[ 557.614783][ T5386] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 557.615098][ T5386] ? __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) 
[ 557.615412][ T5386] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 557.615802][ T5386] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 557.616115][ T5386] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 557.616426][ T5386] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 557.616734][ T5386] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 557.617075][ T5386] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 557.617391][ T5386] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 557.617695][ T5386] ? __create_object (mm/kmemleak.c:771) 
[ 557.618052][ T5386] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 557.618365][ T5386] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 557.618682][ T5386] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 557.619079][ T5386] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 557.619397][ T5386] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 557.619717][ T5386] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 557.620037][ T5386] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 557.620359][ T5386] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 557.620670][ T5386] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 557.620999][ T5386] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 557.621318][ T5386] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 557.621629][ T5386] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 557.621951][ T5386] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 557.622271][ T5386] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 557.622585][ T5386] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 557.622907][ T5386] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 557.623216][ T5386] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 557.623533][ T5386] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 557.623864][ T5386] ? 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) 
[ 557.624183][ T5386] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 557.624498][ T5386] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 557.624831][ T5386] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 557.625158][ T5386] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 557.625477][ T5386] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 557.625806][ T5386] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 557.626125][ T5386] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 557.626439][ T5386] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 557.626762][ T5386] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 557.627160][ T5386] ___sys_sendmsg (net/socket.c:2670) 
[ 557.627472][ T5386] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 557.627791][ T5386] ? __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) 
[ 557.628182][ T5386] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 557.628492][ T5386] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 557.628830][ T5386] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 557.629157][ T5386] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 557.629466][ T5386] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 557.629781][ T5386] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 557.630097][ T5386] __sys_sendmsg (net/socket.c:2700) 
[ 557.630403][ T5386] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 557.630791][ T5386] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 557.631113][ T5386] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 557.631437][ T5386] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 557.631757][ T5386] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  557.632138][ T5386] RIP: 0033:0x7f3e6fd2e1e7
[ 557.632459][ T5386] 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)
[  557.633563][ T5386] RSP: 002b:00007fff5ce522d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  557.634053][ T5386] RAX: ffffffffffffffda RBX: 00007fff5ce52a10 RCX: 00007f3e6fd2e1e7
[  557.634514][ T5386] RDX: 0000000000000000 RSI: 00007fff5ce52340 RDI: 0000000000000005
[  557.634987][ T5386] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  557.635451][ T5386] R10: 000000000e9de910 R11: 0000000000000246 R12: 0000000000000003
[  557.635930][ T5386] R13: 00000000686e4678 R14: 0000000000499600 R15: 0000000000000000
| [  561.572442][   T12] ------------[ cut here ]------------
| [ 561.572800][ T12] WARNING: CPU: 3 PID: 12 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) 
| [  561.573348][   T12] Modules linked in: vxlan
| [  561.575115][   T12] Tainted: [W]=WARN
[  561.575364][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  561.575786][   T12] Workqueue: netns cleanup_net
[ 561.576142][ T12] 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) 
[ 561.576479][ T12] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  561.577628][   T12] RSP: 0018:ffffc900000c7360 EFLAGS: 00010246
[  561.578041][   T12] RAX: 0000000000000000 RBX: ffff888019d52000 RCX: 0000000000000001
[  561.578515][   T12] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  561.579011][   T12] RBP: ffffc900000c7450 R08: 0000000000000000 R09: 0000000000000000
[  561.579505][   T12] R10: ffffc900000c7480 R11: ffffffffa478d1e0 R12: 1ffff92000018e70
[  561.580007][   T12] R13: 0000000000000596 R14: ffffc900000c7480 R15: ffff888019d52f48
[  561.580503][   T12] FS:  0000000000000000(0000) GS:ffff8880c6d19000(0000) knlGS:0000000000000000
[  561.581089][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  561.581486][   T12] CR2: 00007ffb98c1c000 CR3: 000000000e54a003 CR4: 0000000000772ef0
[  561.581977][   T12] PKRU: 55555554
[  561.582212][   T12] Call Trace:
[  561.582447][   T12]  <TASK>
[ 561.582608][ T12] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 561.582931][ T12] ? __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) 
[ 561.583322][ T12] ? br_del_if (net/bridge/br_if.c:742) 
[ 561.583566][ T12] ? br_device_event (net/bridge/br.c:141) 
[ 561.583901][ T12] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 561.584213][ T12] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 561.584533][ T12] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 561.584938][ T12] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 561.585324][ T12] ? ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 561.585640][ T12] ? cleanup_net (net/core/net_namespace.c:684) 
[ 561.585958][ T12] ? process_one_work (kernel/workqueue.c:3238) 
[ 561.586272][ T12] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 561.586597][ T12] ? kthread (kernel/kthread.c:464) 
[ 561.586844][ T12] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 561.587169][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 561.587492][ T12] netif_set_mtu (net/core/dev.c:9652) 
[ 561.587812][ T12] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 561.588140][ T12] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 561.588380][ T12] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 561.588696][ T12] br_del_if (net/bridge/br_if.c:743) 
[ 561.588943][ T12] br_device_event (net/bridge/br.c:141) 
[ 561.589261][ T12] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 561.589591][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 561.589920][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 561.590322][ T12] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 561.590760][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 561.591155][ T12] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 561.591487][ T12] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 561.591906][ T12] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 561.592316][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 561.592643][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 561.593063][ T12] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 561.593389][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 561.593798][ T12] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 561.594188][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 561.594576][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 561.594985][ T12] default_device_exit_batch (net/core/dev.c:12673) 
[ 561.595298][ T12] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 561.595709][ T12] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 561.596033][ T12] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 561.596352][ T12] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 561.596669][ T12] cleanup_net (net/core/net_namespace.c:684) 
[ 561.596993][ T12] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 561.597320][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 561.597644][ T12] process_one_work (kernel/workqueue.c:3238) 
[ 561.597974][ T12] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 561.598302][ T12] ? assign_work (kernel/workqueue.c:1200) 
[ 561.598636][ T12] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 561.598983][ T12] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 561.599310][ T12] kthread (kernel/kthread.c:464) 
[ 561.599559][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 561.599877][ T12] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 561.600189][ T12] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 561.600501][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 561.600837][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 561.601151][ T12] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 561.601472][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 561.601800][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  561.626489][   T12] ------------[ cut here ]------------
| [ 561.628130][ T12] WARNING: CPU: 3 PID: 12 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) 
| [  561.628667][   T12] Modules linked in: vxlan
| [  561.629973][   T12] Tainted: [W]=WARN
[  561.630215][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  561.630612][   T12] Workqueue: netns cleanup_net
[ 561.631082][ T12] 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) 
[ 561.631403][ T12] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  561.632560][   T12] RSP: 0018:ffffc900000c7360 EFLAGS: 00010246
[  561.632985][   T12] RAX: 0000000000000000 RBX: ffff888019d52000 RCX: 0000000000000001
[  561.633458][   T12] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  561.633960][   T12] RBP: ffffc900000c7450 R08: 0000000000000000 R09: 0000000000000000
[  561.634455][   T12] R10: ffffc900000c7480 R11: ffffffffa478d1e0 R12: 1ffff92000018e70
[  561.634957][   T12] R13: 00000000000005aa R14: ffffc900000c7480 R15: ffff888019d52f48
[  561.635434][   T12] FS:  0000000000000000(0000) GS:ffff8880c6d19000(0000) knlGS:0000000000000000
[  561.635989][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  561.636379][   T12] CR2: 00007ffb98c1c000 CR3: 000000000e54a003 CR4: 0000000000772ef0
[  561.636855][   T12] PKRU: 55555554
[  561.637101][   T12] Call Trace:
[  561.637334][   T12]  <TASK>
[ 561.637499][ T12] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 561.637818][ T12] ? __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) 
[ 561.638213][ T12] ? br_del_if (net/bridge/br_if.c:742) 
[ 561.638453][ T12] ? br_device_event (net/bridge/br.c:141) 
[ 561.638770][ T12] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 561.639074][ T12] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 561.639387][ T12] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 561.639804][ T12] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 561.640186][ T12] ? ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 561.640495][ T12] ? cleanup_net (net/core/net_namespace.c:684) 
[ 561.640808][ T12] ? process_one_work (kernel/workqueue.c:3238) 
[ 561.641118][ T12] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 561.641430][ T12] ? kthread (kernel/kthread.c:464) 
[ 561.641661][ T12] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 561.641978][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 561.642305][ T12] netif_set_mtu (net/core/dev.c:9652) 
[ 561.642619][ T12] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 561.642950][ T12] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 561.643186][ T12] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 561.643499][ T12] br_del_if (net/bridge/br_if.c:743) 
[ 561.643741][ T12] br_device_event (net/bridge/br.c:141) 
[ 561.644060][ T12] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 561.644379][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 561.644697][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 561.645120][ T12] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 561.645533][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 561.645940][ T12] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 561.646271][ T12] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 561.646672][ T12] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 561.647090][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 561.647425][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 561.647833][ T12] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 561.648152][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 561.648532][ T12] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 561.648930][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 561.649323][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 561.649716][ T12] default_device_exit_batch (net/core/dev.c:12673) 
[ 561.650032][ T12] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 561.650425][ T12] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 561.650739][ T12] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 561.651052][ T12] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 561.651368][ T12] cleanup_net (net/core/net_namespace.c:684) 
[ 561.651683][ T12] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 561.651999][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 561.652313][ T12] process_one_work (kernel/workqueue.c:3238) 
[ 561.652636][ T12] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 561.652967][ T12] ? assign_work (kernel/workqueue.c:1200) 
[ 561.653283][ T12] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 561.653614][ T12] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 561.653939][ T12] kthread (kernel/kthread.c:464) 
[ 561.654170][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 561.654486][ T12] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 561.654800][ T12] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 561.655108][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 561.655414][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 561.655723][ T12] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 561.656053][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 561.656361][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  561.676785][   T12] ------------[ cut here ]------------
| [ 561.677101][ T12] WARNING: CPU: 1 PID: 12 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) 
| [  561.677673][   T12] Modules linked in: vxlan
| [  561.678711][   T12] Tainted: [W]=WARN
[  561.679104][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  561.679630][   T12] Workqueue: netns cleanup_net
[ 561.680109][ T12] 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) 
[ 561.680426][ T12] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  561.681671][   T12] RSP: 0000:ffffc900000c7360 EFLAGS: 00010246
[  561.682203][   T12] RAX: 0000000000000000 RBX: ffff888019d52000 RCX: 0000000000000001
[  561.682686][   T12] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  561.683290][   T12] RBP: ffffc900000c7450 R08: 0000000000000000 R09: 0000000000000000
[  561.683913][   T12] R10: ffffc900000c7480 R11: ffffffffa478d1e0 R12: 1ffff92000018e70
[  561.684375][   T12] R13: 00000000000005dc R14: ffffc900000c7480 R15: ffff888019d52f48
[  561.684981][   T12] FS:  0000000000000000(0000) GS:ffff8880c6c19000(0000) knlGS:0000000000000000
[  561.685521][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  561.686053][   T12] CR2: 00007ff3b0c5ffe0 CR3: 000000000e54a006 CR4: 0000000000772ef0
[  561.686574][   T12] PKRU: 55555554
[  561.686976][   T12] Call Trace:
[  561.687211][   T12]  <TASK>
[ 561.687365][ T12] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 561.687674][ T12] ? __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) 
[ 561.688204][ T12] ? br_del_if (net/bridge/br_if.c:742) 
[ 561.688440][ T12] ? br_device_event (net/bridge/br.c:141) 
[ 561.688744][ T12] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 561.689199][ T12] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 561.689507][ T12] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 561.690082][ T12] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 561.690463][ T12] ? ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 561.690781][ T12] ? cleanup_net (net/core/net_namespace.c:684) 
[ 561.691085][ T12] ? process_one_work (kernel/workqueue.c:3238) 
[ 561.691396][ T12] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 561.691700][ T12] ? kthread (kernel/kthread.c:464) 
[ 561.691942][ T12] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 561.692247][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 561.692565][ T12] netif_set_mtu (net/core/dev.c:9652) 
[ 561.692884][ T12] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 561.693209][ T12] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 561.693442][ T12] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 561.693782][ T12] br_del_if (net/bridge/br_if.c:743) 
[ 561.694017][ T12] br_device_event (net/bridge/br.c:141) 
[ 561.694323][ T12] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 561.694637][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 561.694961][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 561.695351][ T12] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 561.695763][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 561.696171][ T12] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 561.696493][ T12] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 561.696926][ T12] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 561.697334][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 561.697647][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 561.698045][ T12] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 561.698358][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 561.698743][ T12] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 561.699135][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 561.699514][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 561.699911][ T12] default_device_exit_batch (net/core/dev.c:12673) 
[ 561.700220][ T12] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 561.700608][ T12] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 561.700938][ T12] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 561.701242][ T12] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 561.701556][ T12] cleanup_net (net/core/net_namespace.c:684) 
[ 561.701875][ T12] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 561.702184][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 561.702495][ T12] process_one_work (kernel/workqueue.c:3238) 
[ 561.702825][ T12] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 561.703152][ T12] ? assign_work (kernel/workqueue.c:1200) 
[ 561.703468][ T12] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 561.703813][ T12] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 561.704121][ T12] kthread (kernel/kthread.c:464) 
[ 561.704353][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 561.704658][ T12] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 561.704978][ T12] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 561.705292][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 561.705603][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 561.705921][ T12] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 561.706225][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 561.706528][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  561.725140][   T12] ------------[ cut here ]------------
| [ 561.725721][ T12] WARNING: CPU: 2 PID: 12 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) 
| [  561.726719][   T12] Modules linked in: vxlan
| [  561.727844][   T12] Tainted: [W]=WARN
[  561.728094][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  561.728490][   T12] Workqueue: netns cleanup_net
[ 561.728854][ T12] 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) 
[ 561.729202][ T12] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  561.730362][   T12] RSP: 0000:ffffc900000c7360 EFLAGS: 00010246
[  561.730869][   T12] RAX: 0000000000000000 RBX: ffff888019ef2000 RCX: 0000000000000001
[  561.731354][   T12] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  561.731864][   T12] RBP: ffffc900000c7450 R08: 0000000000000000 R09: 0000000000000000
[  561.732459][   T12] R10: ffffc900000c7480 R11: ffffffffa478d1e0 R12: 1ffff92000018e70
[  561.733062][   T12] R13: 00000000000005dc R14: ffffc900000c7480 R15: ffff888019ef2f48
[  561.733551][   T12] FS:  0000000000000000(0000) GS:ffff8880c6c99000(0000) knlGS:0000000000000000
[  561.734653][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  561.735244][   T12] CR2: 00007ff3b0cc3730 CR3: 000000000e54a001 CR4: 0000000000772ef0
[  561.736007][   T12] PKRU: 55555554
[  561.736465][   T12] Call Trace:
[  561.736880][   T12]  <TASK>
[ 561.737389][ T12] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 561.738309][ T12] ? __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) 
[ 561.738993][ T12] ? br_del_if (net/bridge/br_if.c:742) 
[ 561.739475][ T12] ? br_device_event (net/bridge/br.c:141) 
[ 561.740092][ T12] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 561.740725][ T12] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 561.741223][ T12] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 561.741716][ T12] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 561.742254][ T12] ? ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 561.742693][ T12] ? cleanup_net (net/core/net_namespace.c:684) 
[ 561.743133][ T12] ? process_one_work (kernel/workqueue.c:3238) 
[ 561.743563][ T12] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 561.743998][ T12] ? kthread (kernel/kthread.c:464) 
[ 561.744303][ T12] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 561.744733][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 561.745194][ T12] netif_set_mtu (net/core/dev.c:9652) 
[ 561.745603][ T12] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 561.746045][ T12] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 561.746363][ T12] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 561.746806][ T12] br_del_if (net/bridge/br_if.c:743) 
[ 561.747122][ T12] br_device_event (net/bridge/br.c:141) 
[ 561.747604][ T12] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 561.748077][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 561.748523][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 561.749210][ T12] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 561.749810][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 561.750315][ T12] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 561.750736][ T12] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 561.751305][ T12] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 561.751852][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 561.752317][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 561.752846][ T12] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 561.753288][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 561.753919][ T12] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 561.754523][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 561.754977][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 561.755571][ T12] default_device_exit_batch (net/core/dev.c:12673) 
[ 561.755935][ T12] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 561.756347][ T12] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 561.756792][ T12] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 561.757190][ T12] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 561.757533][ T12] cleanup_net (net/core/net_namespace.c:684) 
[ 561.758011][ T12] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 561.758479][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 561.758895][ T12] process_one_work (kernel/workqueue.c:3238) 
[ 561.759251][ T12] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 561.759661][ T12] ? assign_work (kernel/workqueue.c:1200) 
[ 561.760056][ T12] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 561.760394][ T12] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 561.760785][ T12] kthread (kernel/kthread.c:464) 
[ 561.761168][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 561.761507][ T12] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 561.761943][ T12] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 561.762393][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 561.762816][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 561.763156][ T12] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 561.763578][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 561.763952][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  561.789490][   T12] ------------[ cut here ]------------
| [ 561.789948][ T12] WARNING: CPU: 2 PID: 12 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) 
| [  561.790519][   T12] Modules linked in: vxlan
| [  561.791821][   T12] Tainted: [W]=WARN
[  561.792118][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  561.792652][   T12] Workqueue: netns cleanup_net
[ 561.794594][ T12] 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) 
[ 561.795099][ T12] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  561.796693][   T12] RSP: 0000:ffffc900000c7360 EFLAGS: 00010246
[  561.797150][   T12] RAX: 0000000000000000 RBX: ffff88801497a000 RCX: 0000000000000001
[  561.797735][   T12] RDX: 0000000000000000 RSI: ffffffffa3d10759 RDI: ffffffffa3458280
[  561.798274][   T12] RBP: ffffc900000c7450 R08: 0000000000000000 R09: 0000000000000000
[  561.798917][   T12] R10: ffffc900000c7480 R11: ffffffffa478d1e0 R12: 1ffff92000018e70
[  561.799542][   T12] R13: 00000000000005dc R14: ffffc900000c7480 R15: ffff88801497af48
[  561.800280][   T12] FS:  0000000000000000(0000) GS:ffff8880c6c99000(0000) knlGS:0000000000000000
[  561.801039][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  561.801499][   T12] CR2: 00007ff3b0cc3730 CR3: 000000000e54a001 CR4: 0000000000772ef0
[  561.802218][   T12] PKRU: 55555554
[  561.802473][   T12] Call Trace:
[  561.802723][   T12]  <TASK>
[ 561.802919][ T12] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 561.803284][ T12] ? __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) 
[ 561.803764][ T12] ? br_del_if (net/bridge/br_if.c:742) 
[ 561.804045][ T12] ? br_device_event (net/bridge/br.c:141) 
[ 561.804376][ T12] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 561.804706][ T12] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 561.805140][ T12] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 561.805637][ T12] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 561.806081][ T12] ? ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 561.806474][ T12] ? cleanup_net (net/core/net_namespace.c:684) 
[ 561.806895][ T12] ? process_one_work (kernel/workqueue.c:3238) 
[ 561.807223][ T12] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 561.807548][ T12] ? kthread (kernel/kthread.c:464) 
[ 561.807834][ T12] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 561.808167][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 561.808511][ T12] netif_set_mtu (net/core/dev.c:9652) 
[ 561.808878][ T12] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 561.809227][ T12] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 561.809484][ T12] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 561.809850][ T12] br_del_if (net/bridge/br_if.c:743) 
[ 561.810105][ T12] br_device_event (net/bridge/br.c:141) 
[ 561.810435][ T12] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 561.810789][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 561.811127][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 561.811553][ T12] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 561.812018][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 561.812435][ T12] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 561.812813][ T12] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 561.813235][ T12] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 561.813695][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 561.814058][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 561.814484][ T12] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 561.814845][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 561.815258][ T12] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 561.815662][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 561.816111][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 561.816543][ T12] default_device_exit_batch (net/core/dev.c:12673) 
[ 561.816900][ T12] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 561.817318][ T12] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 561.817658][ T12] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 561.818013][ T12] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 561.818355][ T12] cleanup_net (net/core/net_namespace.c:684) 
[ 561.818682][ T12] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 561.819047][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 561.819381][ T12] process_one_work (kernel/workqueue.c:3238) 
[ 561.819726][ T12] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 561.820099][ T12] ? assign_work (kernel/workqueue.c:1200) 
[ 561.820439][ T12] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 561.820792][ T12] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 561.821123][ T12] kthread (kernel/kthread.c:464) 
[ 561.821435][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 561.821835][ T12] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 561.822165][ T12] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 561.822585][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 561.822953][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 561.823282][ T12] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 561.823629][ T12] ? __pfx_kthread (kernel/kthread.c:413) 


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