======================================
| [   35.907107][  T475] br1: port 1(vethhv-11) entered forwarding state
| [   35.908705][  T475] ------------[ cut here ]------------
| [ 35.909015][ T475] WARNING: CPU: 3 PID: 475 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   35.909624][  T475] Modules linked in: vxlan
[   35.910527][  T475] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 35.910899][ T475] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 35.911206][ T475] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   35.912266][  T475] RSP: 0018:ffffc90000eb6ef0 EFLAGS: 00010246
[   35.912665][  T475] RAX: 0000000000000000 RBX: ffff88800e112000 RCX: 0000000000000001
[   35.913127][  T475] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[   35.913576][  T475] RBP: ffffc90000eb6fd8 R08: 0000000000000000 R09: 0000000000000000
[   35.914018][  T475] R10: ffffc90000eb7008 R11: ffffffff9138d1e0 R12: 1ffff920001d6de2
[   35.914476][  T475] R13: 00000000000005dc R14: ffffc90000eb7008 R15: ffff88800e112f48
[   35.914920][  T475] FS:  00007ff38c527800(0000) GS:ffff8880d2919000(0000) knlGS:0000000000000000
[   35.915443][  T475] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.915817][  T475] CR2: 00000000004e6890 CR3: 000000000fecf001 CR4: 0000000000772ef0
[   35.916265][  T475] PKRU: 55555554
[   35.916496][  T475] Call Trace:
[   35.916719][  T475]  <TASK>
[ 35.916877][ T475] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 35.917278][ T475] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.917609][ T475] netif_set_mtu (net/core/dev.c:9652) 
[ 35.917905][ T475] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 35.918218][ T475] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 35.918450][ T475] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 35.918752][ T475] br_add_if (net/bridge/br_if.c:697) 
[ 35.918984][ T475] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 35.919276][ T475] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 35.919582][ T475] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 35.919971][ T475] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 35.920356][ T475] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 35.920657][ T475] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 35.920945][ T475] ? __kernel_text_address (kernel/extable.c:79) 
[ 35.921239][ T475] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.921553][ T475] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 35.921847][ T475] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 35.922209][ T475] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.922509][ T475] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.922806][ T475] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 35.923098][ T475] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 35.923399][ T475] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.923694][ T475] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 35.923983][ T475] ? __create_object (mm/kmemleak.c:771) 
[ 35.924277][ T475] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 35.924578][ T475] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 35.924880][ T475] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 35.925243][ T475] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 35.925550][ T475] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 35.925851][ T475] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.926141][ T475] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.926446][ T475] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.926740][ T475] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 35.927028][ T475] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.927346][ T475] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.927639][ T475] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 35.927934][ T475] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.928233][ T475] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.928538][ T475] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 35.928831][ T475] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.929124][ T475] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 35.929440][ T475] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 35.929729][ T475] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 35.930023][ T475] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 35.930325][ T475] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 35.930618][ T475] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.930915][ T475] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 35.931211][ T475] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 35.931518][ T475] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 35.931820][ T475] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 35.932116][ T475] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 35.932429][ T475] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 35.932805][ T475] ___sys_sendmsg (net/socket.c:2670) 
[ 35.933095][ T475] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 35.933399][ T475] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 35.933770][ T475] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 35.934066][ T475] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.934372][ T475] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.934669][ T475] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.934963][ T475] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 35.935258][ T475] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.935565][ T475] __sys_sendmsg (net/socket.c:2700) 
[ 35.935856][ T475] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 35.936222][ T475] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 35.936534][ T475] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.936828][ T475] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 35.937122][ T475] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   35.937509][  T475] RIP: 0033:0x7ff38c6f41e7
[ 35.937819][ T475] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   35.938888][  T475] RSP: 002b:00007ffebc5c4fa8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   35.939373][  T475] RAX: ffffffffffffffda RBX: 00007ffebc5c56e0 RCX: 00007ff38c6f41e7
[   35.939814][  T475] RDX: 0000000000000000 RSI: 00007ffebc5c5010 RDI: 0000000000000005
[   35.940258][  T475] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   35.940710][  T475] R10: 000000001534e910 R11: 0000000000000246 R12: 0000000000000003
[   35.941155][  T475] R13: 00000000686e7b92 R14: 0000000000499600 R15: 0000000000000000
| [   37.410918][  T501] ------------[ cut here ]------------
| [ 37.411239][ T501] WARNING: CPU: 2 PID: 501 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) 
| [   37.411843][  T501] Modules linked in: vxlan
| [   37.413672][  T501] Tainted: [W]=WARN
[   37.413940][  T501] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 37.414337][ T501] 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) 
[ 37.414653][ T501] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   37.415741][  T501] RSP: 0018:ffffc90000f96ef0 EFLAGS: 00010246
[   37.416143][  T501] RAX: 0000000000000000 RBX: ffff88800e112000 RCX: 0000000000000001
[   37.416622][  T501] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[   37.417085][  T501] RBP: ffffc90000f96fd8 R08: 0000000000000000 R09: 0000000000000000
[   37.417571][  T501] R10: ffffc90000f97008 R11: ffffffff91cceab8 R12: 1ffff920001f2de2
[   37.418034][  T501] R13: 00000000000005aa R14: ffffc90000f97008 R15: ffff88800e112f48
[   37.418494][  T501] FS:  00007fccfaa1d800(0000) GS:ffff8880d2899000(0000) knlGS:0000000000000000
[   37.419033][  T501] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   37.419428][  T501] CR2: 00000000004e6890 CR3: 00000000120ad003 CR4: 0000000000772ef0
[   37.419881][  T501] PKRU: 55555554
[   37.420131][  T501] Call Trace:
[   37.420385][  T501]  <TASK>
[ 37.420554][ T501] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 37.420863][ T501] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 37.421188][ T501] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 37.421580][ T501] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 37.421896][ T501] netif_set_mtu (net/core/dev.c:9652) 
[ 37.422208][ T501] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 37.422536][ T501] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 37.422934][ T501] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 37.423171][ T501] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 37.423491][ T501] br_add_if (net/bridge/br_if.c:697) 
[ 37.423736][ T501] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 37.424065][ T501] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 37.424398][ T501] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 37.424713][ T501] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 37.425124][ T501] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 37.425443][ T501] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 37.425747][ T501] ? __kernel_text_address (kernel/extable.c:79) 
[ 37.426071][ T501] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 37.426390][ T501] ? __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) 
[ 37.426703][ T501] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 37.427078][ T501] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 37.427407][ T501] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 37.427714][ T501] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 37.428024][ T501] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 37.428355][ T501] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 37.428667][ T501] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 37.428970][ T501] ? __create_object (mm/kmemleak.c:771) 
[ 37.429276][ T501] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 37.429588][ T501] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 37.429897][ T501] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 37.430270][ T501] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 37.430590][ T501] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 37.430904][ T501] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 37.431215][ T501] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 37.431536][ T501] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 37.431848][ T501] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 37.432171][ T501] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 37.432516][ T501] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 37.432821][ T501] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 37.433131][ T501] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 37.433451][ T501] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 37.433762][ T501] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 37.434066][ T501] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 37.434380][ T501] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 37.434694][ T501] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 37.434999][ T501] ? 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) 
[ 37.435312][ T501] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 37.435627][ T501] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 37.435930][ T501] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 37.436239][ T501] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 37.436573][ T501] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 37.436882][ T501] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 37.437203][ T501] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 37.437530][ T501] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 37.437839][ T501] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 37.438225][ T501] ___sys_sendmsg (net/socket.c:2670) 
[ 37.438537][ T501] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 37.438840][ T501] ? __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) 
[ 37.439217][ T501] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 37.439537][ T501] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 37.439851][ T501] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 37.440167][ T501] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 37.440493][ T501] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 37.440800][ T501] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 37.441116][ T501] __sys_sendmsg (net/socket.c:2700) 
[ 37.441430][ T501] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 37.441803][ T501] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 37.442121][ T501] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 37.442439][ T501] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 37.442749][ T501] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   37.443127][  T501] RIP: 0033:0x7fccfabea1e7
[ 37.443455][ T501] 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)
[   37.444538][  T501] RSP: 002b:00007ffecb152e78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   37.445001][  T501] RAX: ffffffffffffffda RBX: 00007ffecb1535b0 RCX: 00007fccfabea1e7
[   37.445462][  T501] RDX: 0000000000000000 RSI: 00007ffecb152ee0 RDI: 0000000000000005
[   37.445913][  T501] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   37.446369][  T501] R10: 000000003c19c910 R11: 0000000000000246 R12: 0000000000000003
[   37.446823][  T501] R13: 00000000686e7b93 R14: 0000000000499600 R15: 0000000000000000
| [   40.795753][  T552] ------------[ cut here ]------------
| [ 40.796048][ T552] WARNING: CPU: 3 PID: 552 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) 
| [   40.796633][  T552] Modules linked in: vxlan
| [   40.797668][  T552] Tainted: [W]=WARN
[   40.797891][  T552] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 40.798256][ T552] 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) 
[ 40.798566][ T552] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   40.799616][  T552] RSP: 0018:ffffc90000a36ef0 EFLAGS: 00010246
[   40.799986][  T552] RAX: 0000000000000000 RBX: ffff88800e9ba000 RCX: 0000000000000001
[   40.800433][  T552] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[   40.800869][  T552] RBP: ffffc90000a36fd8 R08: 0000000000000000 R09: 0000000000000000
[   40.801312][  T552] R10: ffffc90000a37008 R11: ffffffff9138d1e0 R12: 1ffff92000146de2
[   40.801748][  T552] R13: 00000000000005dc R14: ffffc90000a37008 R15: ffff88800e9baf48
[   40.802185][  T552] FS:  00007fc0a7d5f800(0000) GS:ffff8880d2919000(0000) knlGS:0000000000000000
[   40.802703][  T552] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.803073][  T552] CR2: 00000000004e6898 CR3: 0000000012233004 CR4: 0000000000772ef0
[   40.803523][  T552] PKRU: 55555554
[   40.803743][  T552] Call Trace:
[   40.803965][  T552]  <TASK>
[ 40.804119][ T552] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 40.804418][ T552] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.804722][ T552] netif_set_mtu (net/core/dev.c:9652) 
[ 40.805023][ T552] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 40.805337][ T552] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 40.805557][ T552] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 40.805851][ T552] br_add_if (net/bridge/br_if.c:697) 
[ 40.806081][ T552] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 40.806384][ T552] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 40.806680][ T552] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 40.806974][ T552] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 40.807360][ T552] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 40.807651][ T552] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 40.807941][ T552] ? __kernel_text_address (kernel/extable.c:79) 
[ 40.808235][ T552] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.808539][ T552] ? __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) 
[ 40.808831][ T552] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 40.809195][ T552] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.809495][ T552] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.809786][ T552] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 40.810076][ T552] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 40.810376][ T552] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.810668][ T552] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 40.810957][ T552] ? __create_object (mm/kmemleak.c:771) 
[ 40.811251][ T552] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 40.811556][ T552] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 40.811848][ T552] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 40.812208][ T552] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 40.812515][ T552] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 40.812811][ T552] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 40.813103][ T552] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.813408][ T552] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.813699][ T552] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 40.813993][ T552] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.814294][ T552] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 40.814586][ T552] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 40.814880][ T552] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 40.815178][ T552] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.815483][ T552] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 40.815775][ T552] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 40.816074][ T552] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 40.816386][ T552] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 40.816676][ T552] ? 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) 
[ 40.816970][ T552] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 40.817276][ T552] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 40.817575][ T552] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.817872][ T552] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 40.818169][ T552] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 40.818468][ T552] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 40.818768][ T552] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 40.819065][ T552] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 40.819363][ T552] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 40.819738][ T552] ___sys_sendmsg (net/socket.c:2670) 
[ 40.820028][ T552] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 40.820329][ T552] ? __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) 
[ 40.820694][ T552] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 40.820990][ T552] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.821293][ T552] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.821590][ T552] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.821883][ T552] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 40.822173][ T552] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.822597][ T552] __sys_sendmsg (net/socket.c:2700) 
[ 40.822894][ T552] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 40.823255][ T552] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 40.823568][ T552] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.823862][ T552] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 40.824154][ T552] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   40.824520][  T552] RIP: 0033:0x7fc0a7f2c1e7
[ 40.824820][ T552] 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)
[   40.825884][  T552] RSP: 002b:00007ffc7de6cd48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   40.826333][  T552] RAX: ffffffffffffffda RBX: 00007ffc7de6d480 RCX: 00007fc0a7f2c1e7
[   40.826771][  T552] RDX: 0000000000000000 RSI: 00007ffc7de6cdb0 RDI: 0000000000000005
[   40.827218][  T552] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   40.827667][  T552] R10: 000000003979f910 R11: 0000000000000246 R12: 0000000000000003
[   40.828105][  T552] R13: 00000000686e7b97 R14: 0000000000499600 R15: 0000000000000000
| [   42.271436][  T578] ------------[ cut here ]------------
| [ 42.271751][ T578] WARNING: CPU: 2 PID: 578 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) 
| [   42.272356][  T578] Modules linked in: vxlan
| [   42.273294][  T578] Tainted: [W]=WARN
[   42.273534][  T578] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.273911][ T578] 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) 
[ 42.274224][ T578] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   42.275790][  T578] RSP: 0018:ffffc900011f6ef0 EFLAGS: 00010246
[   42.276178][  T578] RAX: 0000000000000000 RBX: ffff88800e9ba000 RCX: 0000000000000001
[   42.276641][  T578] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[   42.277090][  T578] RBP: ffffc900011f6fd8 R08: 0000000000000000 R09: 0000000000000000
[   42.277578][  T578] R10: ffffc900011f7008 R11: ffffffff91cceab8 R12: 1ffff9200023ede2
[   42.278031][  T578] R13: 0000000000000596 R14: ffffc900011f7008 R15: ffff88800e9baf48
[   42.278495][  T578] FS:  00007f8f2a8e7800(0000) GS:ffff8880d2899000(0000) knlGS:0000000000000000
[   42.279024][  T578] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.279413][  T578] CR2: 00000000004e6898 CR3: 000000000adc9006 CR4: 0000000000772ef0
[   42.279872][  T578] PKRU: 55555554
[   42.280106][  T578] Call Trace:
[   42.280350][  T578]  <TASK>
[ 42.280515][ T578] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.280826][ T578] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 42.281131][ T578] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 42.281516][ T578] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 42.281828][ T578] netif_set_mtu (net/core/dev.c:9652) 
[ 42.282135][ T578] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 42.282458][ T578] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 42.282840][ T578] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 42.283075][ T578] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 42.283395][ T578] br_add_if (net/bridge/br_if.c:697) 
[ 42.283640][ T578] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 42.283943][ T578] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 42.284253][ T578] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 42.284573][ T578] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.284956][ T578] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.285263][ T578] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.285575][ T578] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.285883][ T578] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.286190][ T578] ? __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) 
[ 42.286510][ T578] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.286891][ T578] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.287209][ T578] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.287522][ T578] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.287831][ T578] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.288134][ T578] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.288449][ T578] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.288756][ T578] ? __create_object (mm/kmemleak.c:771) 
[ 42.289063][ T578] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.289376][ T578] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.289682][ T578] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.290058][ T578] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.290395][ T578] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.290705][ T578] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.291008][ T578] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.291334][ T578] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.291640][ T578] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.291942][ T578] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.292250][ T578] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.292564][ T578] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.292870][ T578] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.293181][ T578] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.293503][ T578] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.293808][ T578] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.294113][ T578] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.294437][ T578] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.294739][ T578] ? 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) 
[ 42.295047][ T578] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 42.295362][ T578] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.295672][ T578] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.295981][ T578] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.296298][ T578] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.296604][ T578] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.296918][ T578] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.297231][ T578] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.297542][ T578] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.297933][ T578] ___sys_sendmsg (net/socket.c:2670) 
[ 42.298237][ T578] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.298549][ T578] ? __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) 
[ 42.298926][ T578] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.299234][ T578] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.299551][ T578] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.299863][ T578] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.300169][ T578] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 42.300486][ T578] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.300799][ T578] __sys_sendmsg (net/socket.c:2700) 
[ 42.301104][ T578] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.301487][ T578] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.301809][ T578] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.302115][ T578] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.302429][ T578] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.302809][  T578] RIP: 0033:0x7f8f2aab41e7
[ 42.303121][ T578] 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)
[   42.304181][  T578] RSP: 002b:00007ffc33925c18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.304649][  T578] RAX: ffffffffffffffda RBX: 00007ffc33926350 RCX: 00007f8f2aab41e7
[   42.305099][  T578] RDX: 0000000000000000 RSI: 00007ffc33925c80 RDI: 0000000000000005
[   42.305556][  T578] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   42.306007][  T578] R10: 000000002f745910 R11: 0000000000000246 R12: 0000000000000003
[   42.306462][  T578] R13: 00000000686e7b98 R14: 0000000000499600 R15: 0000000000000000
| [   45.672373][  T629] ------------[ cut here ]------------
| [ 45.672665][ T629] WARNING: CPU: 1 PID: 629 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) 
| [   45.673236][  T629] Modules linked in: vxlan
| [   45.674161][  T629] Tainted: [W]=WARN
[   45.674391][  T629] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 45.674758][ T629] 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) 
[ 45.675059][ T629] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   45.676110][  T629] RSP: 0018:ffffc900013b6ef0 EFLAGS: 00010246
[   45.676491][  T629] RAX: 0000000000000000 RBX: ffff8880113ba000 RCX: 0000000000000001
[   45.676927][  T629] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[   45.677394][  T629] RBP: ffffc900013b6fd8 R08: 0000000000000000 R09: 0000000000000000
[   45.677836][  T629] R10: ffffc900013b7008 R11: ffffffff9138d1e0 R12: 1ffff92000276de2
[   45.678272][  T629] R13: 00000000000005dc R14: ffffc900013b7008 R15: ffff8880113baf48
[   45.678716][  T629] FS:  00007f2a7d612800(0000) GS:ffff8880d2819000(0000) knlGS:0000000000000000
[   45.679232][  T629] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   45.679605][  T629] CR2: 00000000004e6890 CR3: 0000000009f9b003 CR4: 0000000000772ef0
[   45.680043][  T629] PKRU: 55555554
[   45.680262][  T629] Call Trace:
[   45.680488][  T629]  <TASK>
[ 45.680641][ T629] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 45.680932][ T629] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 45.681235][ T629] netif_set_mtu (net/core/dev.c:9652) 
[ 45.681541][ T629] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 45.681850][ T629] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 45.682073][ T629] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 45.682384][ T629] br_add_if (net/bridge/br_if.c:697) 
[ 45.682616][ T629] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 45.682905][ T629] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 45.683200][ T629] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 45.683503][ T629] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 45.683873][ T629] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 45.684161][ T629] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 45.684464][ T629] ? __kernel_text_address (kernel/extable.c:79) 
[ 45.684758][ T629] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 45.685051][ T629] ? __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) 
[ 45.685359][ T629] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 45.685733][ T629] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 45.686028][ T629] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 45.686325][ T629] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 45.686620][ T629] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 45.686913][ T629] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 45.687211][ T629] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 45.687524][ T629] ? __create_object (mm/kmemleak.c:771) 
[ 45.687820][ T629] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 45.688113][ T629] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 45.688413][ T629] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 45.688776][ T629] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 45.689081][ T629] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 45.689394][ T629] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 45.689691][ T629] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 45.689988][ T629] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 45.690281][ T629] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 45.690581][ T629] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 45.690873][ T629] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 45.691166][ T629] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 45.691473][ T629] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 45.691770][ T629] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 45.692068][ T629] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 45.692368][ T629] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 45.692659][ T629] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 45.692963][ T629] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 45.693253][ T629] ? 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) 
[ 45.693565][ T629] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 45.693868][ T629] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 45.694159][ T629] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 45.694463][ T629] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 45.694759][ T629] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 45.695050][ T629] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 45.695356][ T629] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 45.695655][ T629] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 45.695945][ T629] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 45.696329][ T629] ___sys_sendmsg (net/socket.c:2670) 
[ 45.696622][ T629] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 45.696915][ T629] ? __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) 
[ 45.697305][ T629] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 45.697601][ T629] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 45.697902][ T629] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 45.698200][ T629] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 45.698499][ T629] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 45.698790][ T629] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 45.699088][ T629] __sys_sendmsg (net/socket.c:2700) 
[ 45.699385][ T629] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 45.699749][ T629] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 45.700057][ T629] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 45.700361][ T629] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 45.700655][ T629] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   45.701015][  T629] RIP: 0033:0x7f2a7d7df1e7
[ 45.701331][ T629] 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)
[   45.702386][  T629] RSP: 002b:00007ffc948ee708 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   45.702827][  T629] RAX: ffffffffffffffda RBX: 00007ffc948eee40 RCX: 00007f2a7d7df1e7
[   45.703264][  T629] RDX: 0000000000000000 RSI: 00007ffc948ee770 RDI: 0000000000000005
[   45.703707][  T629] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   45.704145][  T629] R10: 000000001fcc1910 R11: 0000000000000246 R12: 0000000000000003
[   45.704587][  T629] R13: 00000000686e7b9b R14: 0000000000499600 R15: 0000000000000000
| [   47.156867][  T655] ------------[ cut here ]------------
| [ 47.157193][ T655] WARNING: CPU: 2 PID: 655 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) 
| [   47.157809][  T655] Modules linked in: vxlan
| [   47.159579][  T655] Tainted: [W]=WARN
[   47.159818][  T655] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.160195][ T655] 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) 
[ 47.160536][ T655] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   47.161620][  T655] RSP: 0018:ffffc90001206ef0 EFLAGS: 00010246
[   47.162029][  T655] RAX: 0000000000000000 RBX: ffff8880113ba000 RCX: 0000000000000001
[   47.162504][  T655] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[   47.162961][  T655] RBP: ffffc90001206fd8 R08: 0000000000000000 R09: 0000000000000000
[   47.163444][  T655] R10: ffffc90001207008 R11: ffffffff9138d1e0 R12: 1ffff92000240de2
[   47.163894][  T655] R13: 00000000000005aa R14: ffffc90001207008 R15: ffff8880113baf48
[   47.164379][  T655] FS:  00007fa40666c800(0000) GS:ffff8880d2899000(0000) knlGS:0000000000000000
[   47.164901][  T655] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.165278][  T655] CR2: 00000000004e6890 CR3: 00000000123e6004 CR4: 0000000000772ef0
[   47.165762][  T655] PKRU: 55555554
[   47.165993][  T655] Call Trace:
[   47.166224][  T655]  <TASK>
[ 47.166405][ T655] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 47.166727][ T655] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 47.167046][ T655] netif_set_mtu (net/core/dev.c:9652) 
[ 47.167390][ T655] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 47.167731][ T655] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 47.167968][ T655] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 47.168316][ T655] br_add_if (net/bridge/br_if.c:697) 
[ 47.168564][ T655] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 47.168874][ T655] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 47.169183][ T655] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 47.169530][ T655] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 47.169916][ T655] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 47.170219][ T655] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 47.170544][ T655] ? __kernel_text_address (kernel/extable.c:79) 
[ 47.170851][ T655] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 47.171164][ T655] ? __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) 
[ 47.171479][ T655] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 47.171854][ T655] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 47.172159][ T655] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 47.172470][ T655] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 47.172774][ T655] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 47.173079][ T655] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 47.173421][ T655] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 47.173726][ T655] ? __create_object (mm/kmemleak.c:771) 
[ 47.174035][ T655] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 47.174360][ T655] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 47.174668][ T655] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 47.175042][ T655] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 47.175367][ T655] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 47.175678][ T655] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 47.175991][ T655] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 47.176311][ T655] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 47.176620][ T655] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 47.176920][ T655] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 47.177234][ T655] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 47.177547][ T655] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 47.177856][ T655] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 47.178165][ T655] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 47.178500][ T655] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 47.178808][ T655] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 47.179115][ T655] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 47.179439][ T655] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 47.179743][ T655] ? 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) 
[ 47.180048][ T655] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 47.180365][ T655] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 47.180673][ T655] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 47.180983][ T655] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 47.181300][ T655] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 47.181606][ T655] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 47.181920][ T655] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 47.182254][ T655] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 47.182610][ T655] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 47.183011][ T655] ___sys_sendmsg (net/socket.c:2670) 
[ 47.183326][ T655] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 47.183630][ T655] ? __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) 
[ 47.184006][ T655] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 47.184325][ T655] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 47.184633][ T655] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 47.184948][ T655] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 47.185257][ T655] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 47.185579][ T655] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 47.185892][ T655] __sys_sendmsg (net/socket.c:2700) 
[ 47.186194][ T655] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 47.186591][ T655] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 47.186915][ T655] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 47.187241][ T655] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 47.187569][ T655] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   47.187945][  T655] RIP: 0033:0x7fa4068391e7
[ 47.188260][ T655] 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)
[   47.189342][  T655] RSP: 002b:00007ffe0b734d58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   47.189807][  T655] RAX: ffffffffffffffda RBX: 00007ffe0b735490 RCX: 00007fa4068391e7
[   47.190258][  T655] RDX: 0000000000000000 RSI: 00007ffe0b734dc0 RDI: 0000000000000005
[   47.190720][  T655] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   47.191168][  T655] R10: 0000000005b67910 R11: 0000000000000246 R12: 0000000000000003
[   47.191634][  T655] R13: 00000000686e7b9d R14: 0000000000499600 R15: 0000000000000000
| [   50.704857][  T706] ------------[ cut here ]------------
| [ 50.705180][ T706] WARNING: CPU: 0 PID: 706 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) 
| [   50.705815][  T706] Modules linked in: vxlan
| [   50.706778][  T706] Tainted: [W]=WARN
[   50.707022][  T706] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 50.707437][ T706] 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) 
[ 50.707763][ T706] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   50.708865][  T706] RSP: 0018:ffffc90001396ef0 EFLAGS: 00010246
[   50.709254][  T706] RAX: 0000000000000000 RBX: ffff88800f0f2000 RCX: 0000000000000001
[   50.709730][  T706] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[   50.710189][  T706] RBP: ffffc90001396fd8 R08: 0000000000000000 R09: 0000000000000000
[   50.710657][  T706] R10: ffffc90001397008 R11: ffffffff9138d1e0 R12: 1ffff92000272de2
[   50.711120][  T706] R13: 00000000000005dc R14: ffffc90001397008 R15: ffff88800f0f2f48
[   50.711589][  T706] FS:  00007f72a5892800(0000) GS:ffff8880d2799000(0000) knlGS:0000000000000000
[   50.712135][  T706] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   50.712541][  T706] CR2: 00000000004e6898 CR3: 0000000012289003 CR4: 0000000000772ef0
[   50.713005][  T706] PKRU: 55555554
[   50.713260][  T706] Call Trace:
[   50.713516][  T706]  <TASK>
[ 50.713676][ T706] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 50.713986][ T706] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 50.714318][ T706] netif_set_mtu (net/core/dev.c:9652) 
[ 50.714639][ T706] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 50.714962][ T706] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 50.715217][ T706] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 50.715545][ T706] br_add_if (net/bridge/br_if.c:697) 
[ 50.715789][ T706] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 50.716104][ T706] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 50.716441][ T706] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 50.716745][ T706] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 50.717153][ T706] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 50.717503][ T706] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 50.717807][ T706] ? __kernel_text_address (kernel/extable.c:79) 
[ 50.718106][ T706] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 50.718416][ T706] ? __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) 
[ 50.718723][ T706] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 50.719092][ T706] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 50.719395][ T706] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 50.719686][ T706] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 50.719995][ T706] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 50.720305][ T706] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 50.720622][ T706] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 50.720913][ T706] ? __create_object (mm/kmemleak.c:771) 
[ 50.721236][ T706] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 50.721551][ T706] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 50.721882][ T706] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 50.722247][ T706] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 50.722582][ T706] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 50.722884][ T706] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 50.723203][ T706] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 50.723525][ T706] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 50.723849][ T706] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 50.724152][ T706] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 50.724473][ T706] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 50.724786][ T706] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 50.725079][ T706] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 50.725415][ T706] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 50.725724][ T706] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 50.726044][ T706] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 50.726357][ T706] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 50.726661][ T706] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 50.726953][ T706] ? 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) 
[ 50.727258][ T706] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 50.727563][ T706] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 50.727856][ T706] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 50.728157][ T706] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 50.728480][ T706] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 50.728800][ T706] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 50.729111][ T706] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 50.729419][ T706] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 50.729721][ T706] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 50.730103][ T706] ___sys_sendmsg (net/socket.c:2670) 
[ 50.730404][ T706] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 50.730708][ T706] ? __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) 
[ 50.731082][ T706] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 50.731398][ T706] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 50.731696][ T706] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 50.732004][ T706] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 50.732321][ T706] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 50.732618][ T706] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 50.732929][ T706] __sys_sendmsg (net/socket.c:2700) 
[ 50.733240][ T706] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 50.733621][ T706] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 50.733933][ T706] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 50.734230][ T706] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 50.734536][ T706] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   50.734899][  T706] RIP: 0033:0x7f72a5a5f1e7
[ 50.735210][ T706] 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)
[   50.736277][  T706] RSP: 002b:00007ffedfbdc4c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   50.736725][  T706] RAX: ffffffffffffffda RBX: 00007ffedfbdcc00 RCX: 00007f72a5a5f1e7
[   50.737168][  T706] RDX: 0000000000000000 RSI: 00007ffedfbdc530 RDI: 0000000000000005
[   50.737621][  T706] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   50.738058][  T706] R10: 000000000b222910 R11: 0000000000000246 R12: 0000000000000003
[   50.738504][  T706] R13: 00000000686e7ba1 R14: 0000000000499600 R15: 0000000000000000
| [   52.263459][  T732] ------------[ cut here ]------------
| [ 52.263798][ T732] WARNING: CPU: 3 PID: 732 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   52.264396][  T732] Modules linked in: vxlan
| [   52.265309][  T732] Tainted: [W]=WARN
[   52.265532][  T732] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 52.265894][ T732] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 52.266194][ T732] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   52.267255][  T732] RSP: 0018:ffffc90001626ef0 EFLAGS: 00010246
[   52.267645][  T732] RAX: 0000000000000000 RBX: ffff88800f0f2000 RCX: 0000000000000001
[   52.268085][  T732] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[   52.268532][  T732] RBP: ffffc90001626fd8 R08: 0000000000000000 R09: 0000000000000000
[   52.268972][  T732] R10: ffffc90001627008 R11: ffffffff9138d1e0 R12: 1ffff920002c4de2
[   52.269429][  T732] R13: 0000000000000596 R14: ffffc90001627008 R15: ffff88800f0f2f48
[   52.269865][  T732] FS:  00007f0dfd242800(0000) GS:ffff8880d2919000(0000) knlGS:0000000000000000
[   52.270386][  T732] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   52.270761][  T732] CR2: 00000000004e6898 CR3: 000000000b4d6004 CR4: 0000000000772ef0
[   52.271209][  T732] PKRU: 55555554
[   52.271445][  T732] Call Trace:
[   52.271670][  T732]  <TASK>
[ 52.271820][ T732] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 52.272112][ T732] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 52.272427][ T732] netif_set_mtu (net/core/dev.c:9652) 
[ 52.272720][ T732] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 52.273031][ T732] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 52.273256][ T732] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 52.273562][ T732] br_add_if (net/bridge/br_if.c:697) 
[ 52.273795][ T732] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 52.274085][ T732] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 52.274391][ T732] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 52.274690][ T732] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 52.275064][ T732] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 52.275375][ T732] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 52.275667][ T732] ? __kernel_text_address (kernel/extable.c:79) 
[ 52.275978][ T732] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 52.276300][ T732] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 52.276611][ T732] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 52.276994][ T732] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 52.277322][ T732] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 52.277632][ T732] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 52.277938][ T732] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 52.278251][ T732] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 52.278570][ T732] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 52.278875][ T732] ? __create_object (mm/kmemleak.c:771) 
[ 52.279184][ T732] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 52.279512][ T732] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 52.279829][ T732] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 52.280212][ T732] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 52.280538][ T732] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 52.280853][ T732] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 52.281162][ T732] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 52.281482][ T732] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 52.281788][ T732] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 52.282095][ T732] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 52.282406][ T732] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 52.282698][ T732] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 52.282991][ T732] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 52.283308][ T732] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 52.283615][ T732] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 52.283905][ T732] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 52.284199][ T732] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 52.284515][ T732] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 52.284806][ T732] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 52.285101][ T732] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 52.285404][ T732] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 52.285696][ T732] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 52.285991][ T732] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 52.286299][ T732] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 52.286613][ T732] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 52.286928][ T732] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 52.287244][ T732] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 52.287565][ T732] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 52.287961][ T732] ___sys_sendmsg (net/socket.c:2670) 
[ 52.288265][ T732] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 52.288579][ T732] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 52.288969][ T732] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 52.289281][ T732] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 52.289603][ T732] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 52.289918][ T732] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 52.290226][ T732] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 52.290540][ T732] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 52.290854][ T732] __sys_sendmsg (net/socket.c:2700) 
[ 52.291168][ T732] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 52.291556][ T732] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 52.291875][ T732] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 52.292175][ T732] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 52.292480][ T732] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   52.292846][  T732] RIP: 0033:0x7f0dfd40f1e7
[ 52.293153][ T732] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   52.294209][  T732] RSP: 002b:00007fff5a0cb878 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   52.294658][  T732] RAX: ffffffffffffffda RBX: 00007fff5a0cbfb0 RCX: 00007f0dfd40f1e7
[   52.295096][  T732] RDX: 0000000000000000 RSI: 00007fff5a0cb8e0 RDI: 0000000000000005
[   52.295559][  T732] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   52.295995][  T732] R10: 0000000013ae8910 R11: 0000000000000246 R12: 0000000000000003
[   52.296445][  T732] R13: 00000000686e7ba2 R14: 0000000000499600 R15: 0000000000000000
| [   56.625095][   T68] ------------[ cut here ]------------
| [ 56.625467][ T68] WARNING: CPU: 2 PID: 68 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) 
| [   56.626039][   T68] Modules linked in: vxlan
| [   56.627202][   T68] Tainted: [W]=WARN
[   56.627610][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   56.628181][   T68] Workqueue: netns cleanup_net
[ 56.628714][ T68] 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) 
[ 56.629360][ T68] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   56.630536][   T68] RSP: 0018:ffffc90000497360 EFLAGS: 00010246
[   56.630957][   T68] RAX: 0000000000000000 RBX: ffff88800f0f2000 RCX: 0000000000000001
[   56.631463][   T68] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[   56.631957][   T68] RBP: ffffc90000497450 R08: 0000000000000000 R09: 0000000000000000
[   56.632484][   T68] R10: ffffc90000497480 R11: ffffffff8ccbe86a R12: 1ffff92000092e70
[   56.632975][   T68] R13: 00000000000005dc R14: ffffc90000497480 R15: ffff88800f0f2f48
[   56.633479][   T68] FS:  0000000000000000(0000) GS:ffff8880d2899000(0000) knlGS:0000000000000000
[   56.634053][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   56.634478][   T68] CR2: 00007f8fcdb76730 CR3: 000000007394a001 CR4: 0000000000772ef0
[   56.634983][   T68] PKRU: 55555554
[   56.635236][   T68] Call Trace:
[   56.635497][   T68]  <TASK>
[ 56.635673][ T68] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 56.636010][ T68] ? __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) 
[ 56.636430][ T68] ? br_del_if (net/bridge/br_if.c:742) 
[ 56.636696][ T68] ? br_device_event (net/bridge/br.c:141) 
[ 56.637033][ T68] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 56.637390][ T68] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 56.637727][ T68] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 56.638138][ T68] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 56.638555][ T68] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 56.638887][ T68] ? cleanup_net (net/core/net_namespace.c:684) 
[ 56.639217][ T68] ? process_one_work (kernel/workqueue.c:3238) 
[ 56.639564][ T68] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 56.639896][ T68] ? kthread (kernel/kthread.c:464) 
[ 56.640151][ T68] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 56.640493][ T68] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 56.640840][ T68] netif_set_mtu (net/core/dev.c:9652) 
[ 56.641174][ T68] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 56.641537][ T68] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 56.641796][ T68] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 56.642137][ T68] br_del_if (net/bridge/br_if.c:743) 
[ 56.642394][ T68] br_device_event (net/bridge/br.c:141) 
[ 56.642710][ T68] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 56.643036][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 56.643368][ T68] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 56.643766][ T68] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 56.644190][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 56.644606][ T68] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 56.644943][ T68] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 56.645367][ T68] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 56.645783][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 56.646112][ T68] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 56.646538][ T68] ? 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) 
[ 56.646877][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 56.647279][ T68] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 56.647679][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 56.648072][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 56.648482][ T68] default_device_exit_batch (net/core/dev.c:12673) 
[ 56.648802][ T68] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 56.649218][ T68] ops_undo_list (net/core/net_namespace.c:250) 
[ 56.649550][ T68] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 56.649883][ T68] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 56.650230][ T68] cleanup_net (net/core/net_namespace.c:684) 
[ 56.650571][ T68] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 56.650904][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 56.651230][ T68] process_one_work (kernel/workqueue.c:3238) 
[ 56.651567][ T68] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 56.651898][ T68] ? assign_work (kernel/workqueue.c:1200) 
[ 56.652220][ T68] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 56.652554][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 56.652869][ T68] kthread (kernel/kthread.c:464) 
[ 56.653115][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 56.653438][ T68] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 56.653756][ T68] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 56.654083][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 56.654426][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 56.654746][ T68] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 56.655068][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 56.655394][ T68] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   56.696068][   T68] ------------[ cut here ]------------
| [ 56.696396][ T68] WARNING: CPU: 1 PID: 68 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) 
| [   56.696921][   T68] Modules linked in: vxlan
| [   56.697969][   T68] Tainted: [W]=WARN
[   56.698206][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   56.698595][   T68] Workqueue: netns cleanup_net
[ 56.698911][ T68] 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) 
[ 56.699223][ T68] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   56.700467][   T68] RSP: 0018:ffffc90000497360 EFLAGS: 00010246
[   56.700853][   T68] RAX: 0000000000000000 RBX: ffff8880113ba000 RCX: 0000000000000001
[   56.701347][   T68] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[   56.701799][   T68] RBP: ffffc90000497450 R08: 0000000000000000 R09: 0000000000000000
[   56.702260][   T68] R10: ffffc90000497480 R11: ffffffff9138d1e0 R12: 1ffff92000092e70
[   56.702727][   T68] R13: 00000000000005dc R14: ffffc90000497480 R15: ffff8880113baf48
[   56.703187][   T68] FS:  0000000000000000(0000) GS:ffff8880d2819000(0000) knlGS:0000000000000000
[   56.703727][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   56.704123][   T68] CR2: 000055bfc39cbdec CR3: 0000000009ed6006 CR4: 0000000000772ef0
[   56.704590][   T68] PKRU: 55555554
[   56.704821][   T68] Call Trace:
[   56.705048][   T68]  <TASK>
[ 56.705202][ T68] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 56.705518][ T68] ? __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) 
[ 56.705893][ T68] ? br_del_if (net/bridge/br_if.c:742) 
[ 56.706127][ T68] ? br_device_event (net/bridge/br.c:141) 
[ 56.706448][ T68] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 56.706749][ T68] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 56.707054][ T68] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 56.707445][ T68] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 56.707820][ T68] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 56.708120][ T68] ? cleanup_net (net/core/net_namespace.c:684) 
[ 56.708437][ T68] ? process_one_work (kernel/workqueue.c:3238) 
[ 56.708740][ T68] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 56.709040][ T68] ? kthread (kernel/kthread.c:464) 
[ 56.709265][ T68] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 56.709578][ T68] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 56.709890][ T68] netif_set_mtu (net/core/dev.c:9652) 
[ 56.710193][ T68] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 56.710523][ T68] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 56.710762][ T68] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 56.711068][ T68] br_del_if (net/bridge/br_if.c:743) 
[ 56.711310][ T68] br_device_event (net/bridge/br.c:141) 
[ 56.711612][ T68] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 56.711921][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 56.712234][ T68] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 56.712624][ T68] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 56.713020][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 56.713421][ T68] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 56.713739][ T68] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 56.714128][ T68] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 56.714537][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 56.714845][ T68] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 56.715229][ T68] ? 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) 
[ 56.715540][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 56.715916][ T68] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 56.716298][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 56.716675][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 56.717058][ T68] default_device_exit_batch (net/core/dev.c:12673) 
[ 56.717381][ T68] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 56.717774][ T68] ops_undo_list (net/core/net_namespace.c:250) 
[ 56.718080][ T68] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 56.718391][ T68] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 56.718701][ T68] cleanup_net (net/core/net_namespace.c:684) 
[ 56.719006][ T68] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 56.719321][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 56.719628][ T68] process_one_work (kernel/workqueue.c:3238) 
[ 56.719945][ T68] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 56.720253][ T68] ? assign_work (kernel/workqueue.c:1200) 
[ 56.720568][ T68] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 56.720879][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 56.721185][ T68] kthread (kernel/kthread.c:464) 
[ 56.721423][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 56.721724][ T68] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 56.722022][ T68] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 56.722341][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 56.722651][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 56.722956][ T68] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 56.723256][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 56.723567][ T68] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   77.095053][  T977] ------------[ cut here ]------------
| [ 77.095355][ T977] WARNING: CPU: 0 PID: 977 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) 
| [   77.095973][  T977] Modules linked in: vxlan
| [   77.096903][  T977] Tainted: [W]=WARN
[   77.097132][  T977] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 77.097517][ T977] 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) 
[ 77.097826][ T977] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   77.098879][  T977] RSP: 0018:ffffc900020f6ef0 EFLAGS: 00010246
[   77.099256][  T977] RAX: 0000000000000000 RBX: ffff888011672000 RCX: 0000000000000001
[   77.099701][  T977] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[   77.100141][  T977] RBP: ffffc900020f6fd8 R08: 0000000000000000 R09: 0000000000000000
[   77.100585][  T977] R10: ffffc900020f7008 R11: ffffffff9138d1e0 R12: 1ffff9200041ede2
[   77.101023][  T977] R13: 00000000000005dc R14: ffffc900020f7008 R15: ffff888011672f48
[   77.101470][  T977] FS:  00007f8ca2cd6800(0000) GS:ffff8880d2799000(0000) knlGS:0000000000000000
[   77.101982][  T977] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   77.102359][  T977] CR2: 00000000004e6890 CR3: 0000000011340004 CR4: 0000000000772ef0
[   77.102804][  T977] PKRU: 55555554
[   77.103025][  T977] Call Trace:
[   77.103246][  T977]  <TASK>
[ 77.103408][ T977] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 77.103702][ T977] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 77.104018][ T977] netif_set_mtu (net/core/dev.c:9652) 
[ 77.104318][ T977] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 77.104633][ T977] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 77.104857][ T977] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 77.105162][ T977] br_add_if (net/bridge/br_if.c:697) 
[ 77.105400][ T977] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 77.105691][ T977] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 77.105994][ T977] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 77.106298][ T977] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 77.106668][ T977] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 77.106965][ T977] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 77.107261][ T977] ? __kernel_text_address (kernel/extable.c:79) 
[ 77.107566][ T977] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 77.107863][ T977] ? __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) 
[ 77.108158][ T977] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 77.108526][ T977] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 77.108823][ T977] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 77.109117][ T977] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 77.109430][ T977] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 77.109735][ T977] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 77.110027][ T977] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 77.110321][ T977] ? __create_object (mm/kmemleak.c:771) 
[ 77.110620][ T977] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 77.110912][ T977] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 77.111224][ T977] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 77.111593][ T977] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 77.111892][ T977] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 77.112194][ T977] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 77.112495][ T977] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 77.112792][ T977] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 77.113083][ T977] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 77.113387][ T977] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 77.113706][ T977] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 77.113998][ T977] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 77.114305][ T977] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 77.114605][ T977] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 77.114901][ T977] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 77.115197][ T977] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 77.115497][ T977] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 77.115804][ T977] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 77.116094][ T977] ? 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) 
[ 77.116395][ T977] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 77.116691][ T977] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 77.116982][ T977] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 77.117298][ T977] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 77.117594][ T977] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 77.117891][ T977] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 77.118198][ T977] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 77.118503][ T977] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 77.118794][ T977] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 77.119168][ T977] ___sys_sendmsg (net/socket.c:2670) 
[ 77.119463][ T977] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 77.119757][ T977] ? __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) 
[ 77.120125][ T977] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 77.120429][ T977] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 77.120725][ T977] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 77.121022][ T977] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 77.121320][ T977] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 77.121618][ T977] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 77.121918][ T977] __sys_sendmsg (net/socket.c:2700) 
[ 77.122208][ T977] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 77.122580][ T977] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 77.122886][ T977] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 77.123179][ T977] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 77.123481][ T977] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   77.123847][  T977] RIP: 0033:0x7f8ca2ea31e7
[ 77.124155][ T977] 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)
[   77.125208][  T977] RSP: 002b:00007ffdcab29c28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   77.125656][  T977] RAX: ffffffffffffffda RBX: 00007ffdcab2a360 RCX: 00007f8ca2ea31e7
[   77.126095][  T977] RDX: 0000000000000000 RSI: 00007ffdcab29c90 RDI: 0000000000000005
[   77.126541][  T977] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   77.126982][  T977] R10: 000000002ad8f910 R11: 0000000000000246 R12: 0000000000000003
[   77.127435][  T977] R13: 00000000686e7bbb R14: 0000000000499600 R15: 0000000000000000
| [   78.527902][ T1003] ------------[ cut here ]------------
| [ 78.528197][ T1003] WARNING: CPU: 0 PID: 1003 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) 
| [   78.528788][ T1003] Modules linked in: vxlan
| [   78.529687][ T1003] Tainted: [W]=WARN
[   78.529910][ T1003] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 78.530273][ T1003] 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) 
[ 78.530643][ T1003] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   78.531693][ T1003] RSP: 0018:ffffc900021b6ef0 EFLAGS: 00010246
[   78.532062][ T1003] RAX: 0000000000000000 RBX: ffff888011672000 RCX: 0000000000000001
[   78.532506][ T1003] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[   78.532940][ T1003] RBP: ffffc900021b6fd8 R08: 0000000000000000 R09: 0000000000000000
[   78.533386][ T1003] R10: ffffc900021b7008 R11: ffffffff91cceab8 R12: 1ffff92000436de2
[   78.533822][ T1003] R13: 00000000000005aa R14: ffffc900021b7008 R15: ffff888011672f48
[   78.534257][ T1003] FS:  00007f9a4a60f800(0000) GS:ffff8880d2799000(0000) knlGS:0000000000000000
[   78.534774][ T1003] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   78.535145][ T1003] CR2: 00000000004e6890 CR3: 0000000011189002 CR4: 0000000000772ef0
[   78.535591][ T1003] PKRU: 55555554
[   78.535810][ T1003] Call Trace:
[   78.536029][ T1003]  <TASK>
[ 78.536181][ T1003] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 78.536486][ T1003] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 78.536778][ T1003] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 78.537143][ T1003] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 78.537455][ T1003] netif_set_mtu (net/core/dev.c:9652) 
[ 78.537746][ T1003] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 78.538047][ T1003] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 78.538437][ T1003] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 78.538660][ T1003] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 78.538955][ T1003] br_add_if (net/bridge/br_if.c:697) 
[ 78.539185][ T1003] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 78.539485][ T1003] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 78.539780][ T1003] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 78.540078][ T1003] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 78.540454][ T1003] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 78.540744][ T1003] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 78.541035][ T1003] ? __kernel_text_address (kernel/extable.c:79) 
[ 78.541339][ T1003] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 78.541655][ T1003] ? __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) 
[ 78.541950][ T1003] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 78.542321][ T1003] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 78.542615][ T1003] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 78.542905][ T1003] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 78.543195][ T1003] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 78.543499][ T1003] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 78.543796][ T1003] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 78.544085][ T1003] ? __create_object (mm/kmemleak.c:771) 
[ 78.544383][ T1003] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 78.544675][ T1003] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 78.544967][ T1003] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 78.545336][ T1003] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 78.545634][ T1003] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 78.545934][ T1003] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 78.546224][ T1003] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 78.546529][ T1003] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 78.546824][ T1003] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 78.547113][ T1003] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 78.547430][ T1003] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 78.547721][ T1003] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 78.548014][ T1003] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 78.548321][ T1003] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 78.548618][ T1003] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 78.548909][ T1003] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 78.549203][ T1003] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 78.549512][ T1003] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 78.549801][ T1003] ? 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) 
[ 78.550095][ T1003] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 78.550402][ T1003] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 78.550693][ T1003] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 78.550988][ T1003] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 78.551296][ T1003] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 78.551589][ T1003] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 78.551887][ T1003] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 78.552181][ T1003] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 78.552483][ T1003] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 78.552857][ T1003] ___sys_sendmsg (net/socket.c:2670) 
[ 78.553145][ T1003] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 78.553443][ T1003] ? __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) 
[ 78.553808][ T1003] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 78.554102][ T1003] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 78.554405][ T1003] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 78.554705][ T1003] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 78.554997][ T1003] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 78.555299][ T1003] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 78.555599][ T1003] __sys_sendmsg (net/socket.c:2700) 
[ 78.555888][ T1003] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 78.556249][ T1003] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 78.556560][ T1003] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 78.556853][ T1003] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 78.557147][ T1003] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   78.557524][ T1003] RIP: 0033:0x7f9a4a7dc1e7
[ 78.557825][ T1003] 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)
[   78.558872][ T1003] RSP: 002b:00007ffe72eb9d28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   78.559321][ T1003] RAX: ffffffffffffffda RBX: 00007ffe72eba460 RCX: 00007f9a4a7dc1e7
[   78.559756][ T1003] RDX: 0000000000000000 RSI: 00007ffe72eb9d90 RDI: 0000000000000005
[   78.560191][ T1003] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   78.560635][ T1003] R10: 000000002d235910 R11: 0000000000000246 R12: 0000000000000003
[   78.561072][ T1003] R13: 00000000686e7bbc R14: 0000000000499600 R15: 0000000000000000
| [   81.849319][ T1053] ------------[ cut here ]------------
| [ 81.849633][ T1053] WARNING: CPU: 2 PID: 1053 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) 
| [   81.850224][ T1053] Modules linked in: vxlan
| [   81.851159][ T1053] Tainted: [W]=WARN
[   81.851400][ T1053] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 81.851780][ T1053] 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) 
[ 81.852092][ T1053] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   81.853163][ T1053] RSP: 0018:ffffc900022d6ef0 EFLAGS: 00010246
[   81.853554][ T1053] RAX: 0000000000000000 RBX: ffff88801111a000 RCX: 0000000000000001
[   81.854005][ T1053] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[   81.854462][ T1053] RBP: ffffc900022d6fd8 R08: 0000000000000000 R09: 0000000000000000
[   81.854913][ T1053] R10: ffffc900022d7008 R11: ffffffff9138d1e0 R12: 1ffff9200045ade2
[   81.855371][ T1053] R13: 00000000000005dc R14: ffffc900022d7008 R15: ffff88801111af48
[   81.855823][ T1053] FS:  00007f94621a8800(0000) GS:ffff8880d2899000(0000) knlGS:0000000000000000
[   81.856356][ T1053] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   81.856735][ T1053] CR2: 00000000004e6898 CR3: 000000000e15d004 CR4: 0000000000772ef0
[   81.857184][ T1053] PKRU: 55555554
[   81.857433][ T1053] Call Trace:
[   81.857663][ T1053]  <TASK>
[ 81.857826][ T1053] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 81.858135][ T1053] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 81.858476][ T1053] netif_set_mtu (net/core/dev.c:9652) 
[ 81.858783][ T1053] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 81.859110][ T1053] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 81.859359][ T1053] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 81.859672][ T1053] br_add_if (net/bridge/br_if.c:697) 
[ 81.859922][ T1053] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 81.860227][ T1053] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 81.860556][ T1053] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 81.860868][ T1053] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 81.861253][ T1053] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 81.861572][ T1053] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 81.861876][ T1053] ? __kernel_text_address (kernel/extable.c:79) 
[ 81.862182][ T1053] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 81.862499][ T1053] ? __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) 
[ 81.862804][ T1053] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 81.863177][ T1053] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 81.863491][ T1053] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 81.863800][ T1053] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 81.864105][ T1053] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 81.864423][ T1053] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 81.864728][ T1053] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 81.865028][ T1053] ? __create_object (mm/kmemleak.c:771) 
[ 81.865345][ T1053] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 81.865650][ T1053] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 81.865955][ T1053] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 81.866340][ T1053] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 81.866652][ T1053] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 81.866961][ T1053] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 81.867273][ T1053] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 81.867589][ T1053] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 81.867895][ T1053] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 81.868196][ T1053] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 81.868516][ T1053] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 81.868820][ T1053] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 81.869126][ T1053] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 81.869441][ T1053] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 81.869752][ T1053] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 81.870053][ T1053] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 81.870394][ T1053] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 81.870717][ T1053] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 81.871025][ T1053] ? 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) 
[ 81.871338][ T1053] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 81.871648][ T1053] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 81.871949][ T1053] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 81.872258][ T1053] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 81.872575][ T1053] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 81.872880][ T1053] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 81.873195][ T1053] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 81.873516][ T1053] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 81.873817][ T1053] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 81.874207][ T1053] ___sys_sendmsg (net/socket.c:2670) 
[ 81.874521][ T1053] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 81.874834][ T1053] ? __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) 
[ 81.875211][ T1053] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 81.875539][ T1053] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 81.875846][ T1053] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 81.876156][ T1053] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 81.876474][ T1053] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 81.876779][ T1053] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 81.877090][ T1053] __sys_sendmsg (net/socket.c:2700) 
[ 81.877406][ T1053] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 81.877784][ T1053] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 81.878102][ T1053] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 81.878421][ T1053] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 81.878728][ T1053] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   81.879100][ T1053] RIP: 0033:0x7f94623751e7
[ 81.879422][ T1053] 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)
[   81.880492][ T1053] RSP: 002b:00007fff401a0418 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   81.880943][ T1053] RAX: ffffffffffffffda RBX: 00007fff401a0b50 RCX: 00007f94623751e7
[   81.881399][ T1053] RDX: 0000000000000000 RSI: 00007fff401a0480 RDI: 0000000000000005
[   81.881852][ T1053] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   81.882309][ T1053] R10: 0000000019abc910 R11: 0000000000000246 R12: 0000000000000003
[   81.882759][ T1053] R13: 00000000686e7bc0 R14: 0000000000499600 R15: 0000000000000000
| [   83.302885][ T1079] ------------[ cut here ]------------
| [ 83.303177][ T1079] WARNING: CPU: 3 PID: 1079 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) 
| [   83.303775][ T1079] Modules linked in: vxlan
| [   83.304676][ T1079] Tainted: [W]=WARN
[   83.304897][ T1079] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 83.305261][ T1079] 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) 
[ 83.305569][ T1079] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   83.306643][ T1079] RSP: 0018:ffffc90002386ef0 EFLAGS: 00010246
[   83.307014][ T1079] RAX: 0000000000000000 RBX: ffff88801111a000 RCX: 0000000000000001
[   83.307466][ T1079] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[   83.307912][ T1079] RBP: ffffc90002386fd8 R08: 0000000000000000 R09: 0000000000000000
[   83.308356][ T1079] R10: ffffc90002387008 R11: ffffffff91cceab8 R12: 1ffff92000470de2
[   83.308791][ T1079] R13: 0000000000000596 R14: ffffc90002387008 R15: ffff88801111af48
[   83.309228][ T1079] FS:  00007f5605c69800(0000) GS:ffff8880d2919000(0000) knlGS:0000000000000000
[   83.309747][ T1079] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   83.310114][ T1079] CR2: 00000000004e6898 CR3: 0000000012641005 CR4: 0000000000772ef0
[   83.310559][ T1079] PKRU: 55555554
[   83.310777][ T1079] Call Trace:
[   83.310995][ T1079]  <TASK>
[ 83.311148][ T1079] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 83.311452][ T1079] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 83.311749][ T1079] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 83.312113][ T1079] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 83.312416][ T1079] netif_set_mtu (net/core/dev.c:9652) 
[ 83.312711][ T1079] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 83.313011][ T1079] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 83.313387][ T1079] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 83.313610][ T1079] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 83.313911][ T1079] br_add_if (net/bridge/br_if.c:697) 
[ 83.314142][ T1079] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 83.314442][ T1079] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 83.314739][ T1079] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 83.315035][ T1079] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 83.315417][ T1079] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 83.315708][ T1079] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 83.316002][ T1079] ? __kernel_text_address (kernel/extable.c:79) 
[ 83.316307][ T1079] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 83.316602][ T1079] ? __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) 
[ 83.316894][ T1079] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 83.317265][ T1079] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 83.317567][ T1079] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 83.317857][ T1079] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 83.318151][ T1079] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 83.318453][ T1079] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 83.318745][ T1079] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 83.319032][ T1079] ? __create_object (mm/kmemleak.c:771) 
[ 83.319332][ T1079] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 83.319627][ T1079] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 83.319917][ T1079] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 83.320280][ T1079] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 83.320589][ T1079] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 83.320885][ T1079] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 83.321174][ T1079] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 83.321480][ T1079] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 83.321773][ T1079] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 83.322062][ T1079] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 83.322368][ T1079] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 83.322665][ T1079] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 83.322976][ T1079] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 83.323279][ T1079] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 83.323589][ T1079] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 83.323880][ T1079] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 83.324171][ T1079] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 83.324482][ T1079] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 83.324775][ T1079] ? 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) 
[ 83.325068][ T1079] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 83.325371][ T1079] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 83.325661][ T1079] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 83.325956][ T1079] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 83.326250][ T1079] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 83.326549][ T1079] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 83.326848][ T1079] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 83.327146][ T1079] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 83.327454][ T1079] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 83.327828][ T1079] ___sys_sendmsg (net/socket.c:2670) 
[ 83.328115][ T1079] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 83.328411][ T1079] ? __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) 
[ 83.328776][ T1079] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 83.329073][ T1079] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 83.329375][ T1079] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 83.329674][ T1079] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 83.329968][ T1079] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 83.330258][ T1079] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 83.330565][ T1079] __sys_sendmsg (net/socket.c:2700) 
[ 83.330853][ T1079] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 83.331213][ T1079] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 83.331529][ T1079] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 83.331823][ T1079] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 83.332115][ T1079] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   83.332483][ T1079] RIP: 0033:0x7f5605e361e7
[ 83.332784][ T1079] 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)
[   83.333834][ T1079] RSP: 002b:00007ffdf465f9e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   83.334271][ T1079] RAX: ffffffffffffffda RBX: 00007ffdf4660120 RCX: 00007f5605e361e7
[   83.334716][ T1079] RDX: 0000000000000000 RSI: 00007ffdf465fa50 RDI: 0000000000000005
[   83.335150][ T1079] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   83.335599][ T1079] R10: 0000000016cfa910 R11: 0000000000000246 R12: 0000000000000003
[   83.336035][ T1079] R13: 00000000686e7bc1 R14: 0000000000499600 R15: 0000000000000000
| [   86.709207][ T1129] ------------[ cut here ]------------
| [ 86.709543][ T1129] WARNING: CPU: 2 PID: 1129 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) 
| [   86.710129][ T1129] Modules linked in: vxlan
| [   86.711081][ T1129] Tainted: [W]=WARN
[   86.711329][ T1129] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 86.711714][ T1129] 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) 
[ 86.712028][ T1129] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   86.713098][ T1129] RSP: 0018:ffffc900024f6ef0 EFLAGS: 00010246
[   86.713491][ T1129] RAX: 0000000000000000 RBX: ffff88800d272000 RCX: 0000000000000001
[   86.713942][ T1129] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[   86.714410][ T1129] RBP: ffffc900024f6fd8 R08: 0000000000000000 R09: 0000000000000000
[   86.714865][ T1129] R10: ffffc900024f7008 R11: ffffffff9138d1e0 R12: 1ffff9200049ede2
[   86.715324][ T1129] R13: 00000000000005dc R14: ffffc900024f7008 R15: ffff88800d272f48
[   86.715779][ T1129] FS:  00007f5059472800(0000) GS:ffff8880d2899000(0000) knlGS:0000000000000000
[   86.716312][ T1129] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.716693][ T1129] CR2: 00000000004e6890 CR3: 00000000110b1002 CR4: 0000000000772ef0
[   86.717144][ T1129] PKRU: 55555554
[   86.717395][ T1129] Call Trace:
[   86.717627][ T1129]  <TASK>
[ 86.717791][ T1129] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 86.718098][ T1129] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 86.718436][ T1129] netif_set_mtu (net/core/dev.c:9652) 
[ 86.718743][ T1129] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 86.719065][ T1129] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 86.719315][ T1129] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 86.719624][ T1129] br_add_if (net/bridge/br_if.c:697) 
[ 86.719873][ T1129] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 86.720177][ T1129] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 86.720498][ T1129] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 86.720807][ T1129] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 86.721192][ T1129] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 86.721508][ T1129] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 86.721812][ T1129] ? __kernel_text_address (kernel/extable.c:79) 
[ 86.722125][ T1129] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 86.722454][ T1129] ? __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) 
[ 86.722765][ T1129] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 86.723146][ T1129] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 86.723475][ T1129] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 86.723780][ T1129] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 86.724083][ T1129] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 86.724403][ T1129] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 86.724708][ T1129] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 86.725010][ T1129] ? __create_object (mm/kmemleak.c:771) 
[ 86.725325][ T1129] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 86.725633][ T1129] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 86.725937][ T1129] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 86.726330][ T1129] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 86.726653][ T1129] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 86.726969][ T1129] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 86.727281][ T1129] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 86.727612][ T1129] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 86.727916][ T1129] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 86.728218][ T1129] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 86.728537][ T1129] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 86.728842][ T1129] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 86.729146][ T1129] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 86.729471][ T1129] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 86.729781][ T1129] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 86.730085][ T1129] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 86.730411][ T1129] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 86.730729][ T1129] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 86.731031][ T1129] ? 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) 
[ 86.731349][ T1129] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 86.731660][ T1129] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 86.731964][ T1129] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 86.732272][ T1129] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 86.732591][ T1129] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 86.732897][ T1129] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 86.733210][ T1129] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 86.733529][ T1129] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 86.733838][ T1129] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 86.734226][ T1129] ___sys_sendmsg (net/socket.c:2670) 
[ 86.734550][ T1129] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 86.734854][ T1129] ? __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) 
[ 86.735234][ T1129] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 86.735553][ T1129] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 86.735863][ T1129] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 86.736176][ T1129] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 86.736493][ T1129] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 86.736796][ T1129] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 86.737110][ T1129] __sys_sendmsg (net/socket.c:2700) 
[ 86.737431][ T1129] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 86.737809][ T1129] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 86.738130][ T1129] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 86.738464][ T1129] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 86.738782][ T1129] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   86.739156][ T1129] RIP: 0033:0x7f505963f1e7
[ 86.739482][ T1129] 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)
[   86.740549][ T1129] RSP: 002b:00007ffe05297f08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   86.741004][ T1129] RAX: ffffffffffffffda RBX: 00007ffe05298640 RCX: 00007f505963f1e7
[   86.741463][ T1129] RDX: 0000000000000000 RSI: 00007ffe05297f70 RDI: 0000000000000005
[   86.741915][ T1129] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   86.742383][ T1129] R10: 000000003fab1910 R11: 0000000000000246 R12: 0000000000000003
[   86.742838][ T1129] R13: 00000000686e7bc5 R14: 0000000000499600 R15: 0000000000000000
| [   88.170043][ T1155] ------------[ cut here ]------------
| [ 88.170353][ T1155] WARNING: CPU: 0 PID: 1155 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) 
| [   88.170933][ T1155] Modules linked in: vxlan
| [   88.172242][ T1155] Tainted: [W]=WARN
[   88.172475][ T1155] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 88.172839][ T1155] 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) 
[ 88.173137][ T1155] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   88.174192][ T1155] RSP: 0018:ffffc900025c6ef0 EFLAGS: 00010246
[   88.174580][ T1155] RAX: 0000000000000000 RBX: ffff88800d272000 RCX: 0000000000000001
[   88.175016][ T1155] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[   88.175458][ T1155] RBP: ffffc900025c6fd8 R08: 0000000000000000 R09: 0000000000000000
[   88.175893][ T1155] R10: ffffc900025c7008 R11: ffffffff91cceab8 R12: 1ffff920004b8de2
[   88.176342][ T1155] R13: 00000000000005aa R14: ffffc900025c7008 R15: ffff88800d272f48
[   88.176781][ T1155] FS:  00007fc0c305e800(0000) GS:ffff8880d2799000(0000) knlGS:0000000000000000
[   88.177308][ T1155] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.177676][ T1155] CR2: 00000000004e6890 CR3: 00000000127cc006 CR4: 0000000000772ef0
[   88.178120][ T1155] PKRU: 55555554
[   88.178354][ T1155] Call Trace:
[   88.178574][ T1155]  <TASK>
[ 88.178725][ T1155] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 88.179022][ T1155] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 88.179320][ T1155] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 88.179684][ T1155] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 88.179979][ T1155] netif_set_mtu (net/core/dev.c:9652) 
[ 88.180279][ T1155] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 88.180593][ T1155] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 88.180967][ T1155] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 88.181206][ T1155] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 88.181512][ T1155] br_add_if (net/bridge/br_if.c:697) 
[ 88.181744][ T1155] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 88.182033][ T1155] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 88.182351][ T1155] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 88.182651][ T1155] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 88.183020][ T1155] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 88.183317][ T1155] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 88.183611][ T1155] ? __kernel_text_address (kernel/extable.c:79) 
[ 88.183926][ T1155] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 88.184224][ T1155] ? __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) 
[ 88.184532][ T1155] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 88.184895][ T1155] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 88.185188][ T1155] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 88.185486][ T1155] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 88.185778][ T1155] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 88.186071][ T1155] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 88.186379][ T1155] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 88.186678][ T1155] ? __create_object (mm/kmemleak.c:771) 
[ 88.186972][ T1155] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 88.187277][ T1155] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 88.187582][ T1155] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 88.187940][ T1155] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 88.188238][ T1155] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 88.188542][ T1155] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 88.188835][ T1155] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 88.189135][ T1155] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 88.189437][ T1155] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 88.189728][ T1155] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 88.190023][ T1155] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 88.190330][ T1155] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 88.190632][ T1155] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 88.190928][ T1155] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 88.191225][ T1155] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 88.191529][ T1155] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 88.191824][ T1155] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 88.192128][ T1155] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 88.192441][ T1155] ? 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) 
[ 88.192738][ T1155] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 88.193036][ T1155] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 88.193341][ T1155] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 88.193640][ T1155] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 88.193938][ T1155] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 88.194235][ T1155] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 88.194549][ T1155] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 88.194854][ T1155] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 88.195143][ T1155] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 88.195526][ T1155] ___sys_sendmsg (net/socket.c:2670) 
[ 88.195822][ T1155] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 88.196131][ T1155] ? __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) 
[ 88.196504][ T1155] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 88.196803][ T1155] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 88.197099][ T1155] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 88.197412][ T1155] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 88.197704][ T1155] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 88.198003][ T1155] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 88.198322][ T1155] __sys_sendmsg (net/socket.c:2700) 
[ 88.198615][ T1155] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 88.198978][ T1155] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 88.199294][ T1155] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 88.199590][ T1155] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 88.199885][ T1155] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   88.200249][ T1155] RIP: 0033:0x7fc0c322b1e7
[ 88.200559][ T1155] 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)
[   88.201611][ T1155] RSP: 002b:00007ffe62f99e28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   88.202052][ T1155] RAX: ffffffffffffffda RBX: 00007ffe62f9a560 RCX: 00007fc0c322b1e7
[   88.202509][ T1155] RDX: 0000000000000000 RSI: 00007ffe62f99e90 RDI: 0000000000000005
[   88.202949][ T1155] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   88.203393][ T1155] R10: 0000000025ab9910 R11: 0000000000000246 R12: 0000000000000003
[   88.203831][ T1155] R13: 00000000686e7bc6 R14: 0000000000499600 R15: 0000000000000000
| [   92.220639][ T1206] ------------[ cut here ]------------
| [ 92.220950][ T1206] WARNING: CPU: 1 PID: 1206 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) 
| [   92.221577][ T1206] Modules linked in: vxlan
| [   92.222531][ T1206] Tainted: [W]=WARN
[   92.222773][ T1206] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 92.223159][ T1206] 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) 
[ 92.223492][ T1206] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   92.224584][ T1206] RSP: 0018:ffffc90002736ef0 EFLAGS: 00010246
[   92.224971][ T1206] RAX: 0000000000000000 RBX: ffff8880124d2000 RCX: 0000000000000001
[   92.225445][ T1206] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[   92.225911][ T1206] RBP: ffffc90002736fd8 R08: 0000000000000000 R09: 0000000000000000
[   92.226370][ T1206] R10: ffffc90002737008 R11: ffffffff9138d1e0 R12: 1ffff920004e6de2
[   92.226820][ T1206] R13: 00000000000005dc R14: ffffc90002737008 R15: ffff8880124d2f48
[   92.227327][ T1206] FS:  00007fa2eac4e800(0000) GS:ffff8880d2819000(0000) knlGS:0000000000000000
[   92.227858][ T1206] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.228241][ T1206] CR2: 00000000004e6898 CR3: 0000000012862005 CR4: 0000000000772ef0
[   92.228730][ T1206] PKRU: 55555554
[   92.228958][ T1206] Call Trace:
[   92.229183][ T1206]  <TASK>
[ 92.229367][ T1206] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 92.229687][ T1206] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 92.230004][ T1206] netif_set_mtu (net/core/dev.c:9652) 
[ 92.230338][ T1206] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 92.230653][ T1206] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 92.230888][ T1206] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 92.231202][ T1206] br_add_if (net/bridge/br_if.c:697) 
[ 92.231470][ T1206] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 92.231781][ T1206] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 92.232111][ T1206] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 92.232435][ T1206] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 92.232818][ T1206] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 92.233113][ T1206] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 92.233429][ T1206] ? __kernel_text_address (kernel/extable.c:79) 
[ 92.233729][ T1206] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 92.234036][ T1206] ? __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) 
[ 92.234381][ T1206] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 92.234764][ T1206] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 92.235070][ T1206] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 92.235385][ T1206] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 92.235691][ T1206] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 92.235997][ T1206] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 92.236325][ T1206] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 92.236633][ T1206] ? __create_object (mm/kmemleak.c:771) 
[ 92.236929][ T1206] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 92.237238][ T1206] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 92.237559][ T1206] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 92.237930][ T1206] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 92.238235][ T1206] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 92.239080][ T1206] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 92.239410][ T1206] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 92.239744][ T1206] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 92.240049][ T1206] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 92.240368][ T1206] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 92.240669][ T1206] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 92.240965][ T1206] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 92.241262][ T1206] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 92.241582][ T1206] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 92.241899][ T1206] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 92.242204][ T1206] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 92.242516][ T1206] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 92.242823][ T1206] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 92.243120][ T1206] ? 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) 
[ 92.243446][ T1206] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 92.243754][ T1206] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 92.244062][ T1206] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 92.244390][ T1206] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 92.244695][ T1206] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 92.245001][ T1206] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 92.245335][ T1206] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 92.245643][ T1206] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 92.245938][ T1206] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 92.246363][ T1206] ___sys_sendmsg (net/socket.c:2670) 
[ 92.246663][ T1206] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 92.246966][ T1206] ? __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) 
[ 92.247397][ T1206] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 92.247697][ T1206] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 92.248000][ T1206] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 92.248324][ T1206] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 92.248623][ T1206] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 92.248944][ T1206] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 92.249254][ T1206] __sys_sendmsg (net/socket.c:2700) 
[ 92.249567][ T1206] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 92.249941][ T1206] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 92.250255][ T1206] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 92.250568][ T1206] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 92.250873][ T1206] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   92.251253][ T1206] RIP: 0033:0x7fa2eae1b1e7
[ 92.251588][ T1206] 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)
[   92.252681][ T1206] RSP: 002b:00007fffd345d588 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   92.253145][ T1206] RAX: ffffffffffffffda RBX: 00007fffd345dcc0 RCX: 00007fa2eae1b1e7
[   92.253604][ T1206] RDX: 0000000000000000 RSI: 00007fffd345d5f0 RDI: 0000000000000005
[   92.254055][ T1206] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   92.254521][ T1206] R10: 000000003c71f910 R11: 0000000000000246 R12: 0000000000000003
[   92.254969][ T1206] R13: 00000000686e7bca R14: 0000000000499600 R15: 0000000000000000
| [   94.033181][ T1232] ------------[ cut here ]------------
| [ 94.033528][ T1232] WARNING: CPU: 0 PID: 1232 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) 
| [   94.034140][ T1232] Modules linked in: vxlan
| [   94.035116][ T1232] Tainted: [W]=WARN
[   94.035362][ T1232] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 94.035745][ T1232] 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) 
[ 94.036060][ T1232] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   94.037175][ T1232] RSP: 0018:ffffc900027b6ef0 EFLAGS: 00010246
[   94.037602][ T1232] RAX: 0000000000000000 RBX: ffff8880124d2000 RCX: 0000000000000001
[   94.038064][ T1232] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[   94.038533][ T1232] RBP: ffffc900027b6fd8 R08: 0000000000000000 R09: 0000000000000000
[   94.038999][ T1232] R10: ffffc900027b7008 R11: ffffffff9138d1e0 R12: 1ffff920004f6de2
[   94.039477][ T1232] R13: 0000000000000596 R14: ffffc900027b7008 R15: ffff8880124d2f48
[   94.039928][ T1232] FS:  00007f40744ce800(0000) GS:ffff8880d2799000(0000) knlGS:0000000000000000
[   94.040462][ T1232] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   94.040847][ T1232] CR2: 00000000004e6898 CR3: 000000000f3cf006 CR4: 0000000000772ef0
[   94.041318][ T1232] PKRU: 55555554
[   94.041574][ T1232] Call Trace:
[   94.041806][ T1232]  <TASK>
[ 94.041966][ T1232] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 94.042273][ T1232] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 94.042617][ T1232] netif_set_mtu (net/core/dev.c:9652) 
[ 94.042925][ T1232] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 94.043261][ T1232] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 94.043504][ T1232] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 94.043821][ T1232] br_add_if (net/bridge/br_if.c:697) 
[ 94.044063][ T1232] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 94.044378][ T1232] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 94.044683][ T1232] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 94.044988][ T1232] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 94.045391][ T1232] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 94.045714][ T1232] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 94.046018][ T1232] ? __kernel_text_address (kernel/extable.c:79) 
[ 94.046348][ T1232] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 94.046669][ T1232] ? __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) 
[ 94.046970][ T1232] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 94.047392][ T1232] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 94.047711][ T1232] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 94.048017][ T1232] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 94.048334][ T1232] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 94.048653][ T1232] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 94.048956][ T1232] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 94.049255][ T1232] ? __create_object (mm/kmemleak.c:771) 
[ 94.049576][ T1232] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 94.049905][ T1232] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 94.050217][ T1232] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 94.050610][ T1232] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 94.050927][ T1232] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 94.051242][ T1232] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 94.051557][ T1232] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 94.051871][ T1232] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 94.052180][ T1232] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 94.052498][ T1232] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 94.052807][ T1232] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 94.053121][ T1232] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 94.053439][ T1232] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 94.053769][ T1232] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 94.054091][ T1232] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 94.054410][ T1232] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 94.054723][ T1232] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 94.055037][ T1232] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 94.055358][ T1232] ? 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) 
[ 94.055662][ T1232] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 94.055964][ T1232] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 94.056260][ T1232] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 94.056594][ T1232] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 94.056909][ T1232] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 94.057219][ T1232] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 94.057559][ T1232] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 94.057871][ T1232] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 94.058179][ T1232] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 94.058581][ T1232] ___sys_sendmsg (net/socket.c:2670) 
[ 94.058885][ T1232] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 94.059196][ T1232] ? __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) 
[ 94.059614][ T1232] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 94.059923][ T1232] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 94.060229][ T1232] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 94.060548][ T1232] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 94.060860][ T1232] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 94.061180][ T1232] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 94.061509][ T1232] __sys_sendmsg (net/socket.c:2700) 
[ 94.061824][ T1232] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 94.062201][ T1232] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 94.062528][ T1232] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 94.062842][ T1232] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 94.063149][ T1232] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   94.063537][ T1232] RIP: 0033:0x7f407469b1e7
[ 94.063863][ T1232] 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)
[   94.064985][ T1232] RSP: 002b:00007ffc12edda58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   94.065472][ T1232] RAX: ffffffffffffffda RBX: 00007ffc12ede190 RCX: 00007f407469b1e7
[   94.065948][ T1232] RDX: 0000000000000000 RSI: 00007ffc12eddac0 RDI: 0000000000000005
[   94.066422][ T1232] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   94.066891][ T1232] R10: 0000000026ca7910 R11: 0000000000000246 R12: 0000000000000003
[   94.067372][ T1232] R13: 00000000686e7bcc R14: 0000000000499600 R15: 0000000000000000
| [   98.448344][   T68] ------------[ cut here ]------------
| [ 98.448688][ T68] WARNING: CPU: 2 PID: 68 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) 
| [   98.449240][   T68] Modules linked in: vxlan
| [   98.450321][   T68] Tainted: [W]=WARN
[   98.450572][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   98.450979][   T68] Workqueue: netns cleanup_net
[ 98.451336][ T68] 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) 
[ 98.451666][ T68] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   98.452786][   T68] RSP: 0018:ffffc90000497360 EFLAGS: 00010246
[   98.453189][   T68] RAX: 0000000000000000 RBX: ffff8880124d2000 RCX: 0000000000000001
[   98.453673][   T68] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[   98.454159][   T68] RBP: ffffc90000497450 R08: 0000000000000000 R09: 0000000000000000
[   98.454643][   T68] R10: ffffc90000497480 R11: ffffffff9138d1e0 R12: 1ffff92000092e70
[   98.455121][   T68] R13: 00000000000005dc R14: ffffc90000497480 R15: ffff8880124d2f48
[   98.455603][   T68] FS:  0000000000000000(0000) GS:ffff8880d2899000(0000) knlGS:0000000000000000
[   98.456166][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   98.456594][   T68] CR2: 00007f1e014ce770 CR3: 000000007394a004 CR4: 0000000000772ef0
[   98.457087][   T68] PKRU: 55555554
[   98.457358][   T68] Call Trace:
[   98.457611][   T68]  <TASK>
[ 98.457784][ T68] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 98.458108][ T68] ? __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) 
[ 98.458528][ T68] ? br_del_if (net/bridge/br_if.c:742) 
[ 98.458779][ T68] ? br_device_event (net/bridge/br.c:141) 
[ 98.459109][ T68] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 98.459445][ T68] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 98.459781][ T68] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 98.460189][ T68] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 98.460603][ T68] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 98.460932][ T68] ? cleanup_net (net/core/net_namespace.c:684) 
[ 98.461267][ T68] ? process_one_work (kernel/workqueue.c:3238) 
[ 98.461607][ T68] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 98.461939][ T68] ? kthread (kernel/kthread.c:464) 
[ 98.462186][ T68] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 98.462525][ T68] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 98.462872][ T68] netif_set_mtu (net/core/dev.c:9652) 
[ 98.463194][ T68] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 98.463552][ T68] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 98.463801][ T68] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 98.464129][ T68] br_del_if (net/bridge/br_if.c:743) 
[ 98.464396][ T68] br_device_event (net/bridge/br.c:141) 
[ 98.464723][ T68] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 98.465053][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 98.465397][ T68] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 98.465805][ T68] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 98.466231][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 98.466655][ T68] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 98.467005][ T68] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 98.467444][ T68] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 98.467889][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 98.468227][ T68] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 98.468646][ T68] ? 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) 
[ 98.468979][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 98.469403][ T68] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 98.469803][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 98.470199][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 98.470623][ T68] default_device_exit_batch (net/core/dev.c:12673) 
[ 98.470954][ T68] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 98.471377][ T68] ops_undo_list (net/core/net_namespace.c:250) 
[ 98.471714][ T68] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 98.472039][ T68] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 98.472392][ T68] cleanup_net (net/core/net_namespace.c:684) 
[ 98.472726][ T68] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 98.473054][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 98.473403][ T68] process_one_work (kernel/workqueue.c:3238) 
[ 98.473744][ T68] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 98.474083][ T68] ? assign_work (kernel/workqueue.c:1200) 
[ 98.474423][ T68] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 98.474758][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 98.475085][ T68] kthread (kernel/kthread.c:464) 
[ 98.475349][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 98.475683][ T68] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 98.476011][ T68] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 98.476350][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 98.476680][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 98.477022][ T68] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 98.477367][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 98.477695][ T68] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   98.508267][   T68] ------------[ cut here ]------------
| [ 98.508762][ T68] WARNING: CPU: 2 PID: 68 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) 
| [   98.509465][   T68] Modules linked in: vxlan
| [   98.510813][   T68] Tainted: [W]=WARN
[   98.511119][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   98.511543][   T68] Workqueue: netns cleanup_net
[ 98.511876][ T68] 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) 
[ 98.512212][ T68] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   98.513346][   T68] RSP: 0018:ffffc90000497360 EFLAGS: 00010246
[   98.513760][   T68] RAX: 0000000000000000 RBX: ffff88800d272000 RCX: 0000000000000001
[   98.514238][   T68] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[   98.514728][   T68] RBP: ffffc90000497450 R08: 0000000000000000 R09: 0000000000000000
[   98.515203][   T68] R10: ffffc90000497480 R11: ffffffff9138d1e0 R12: 1ffff92000092e70
[   98.515713][   T68] R13: 00000000000005dc R14: ffffc90000497480 R15: ffff88800d272f48
[   98.516190][   T68] FS:  0000000000000000(0000) GS:ffff8880d2899000(0000) knlGS:0000000000000000
[   98.516757][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   98.517161][   T68] CR2: 00007f1e014ce770 CR3: 000000007394a004 CR4: 0000000000772ef0
[   98.517660][   T68] PKRU: 55555554
[   98.517910][   T68] Call Trace:
[   98.518158][   T68]  <TASK>
[ 98.518341][ T68] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 98.518670][ T68] ? __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) 
[ 98.519066][ T68] ? br_del_if (net/bridge/br_if.c:742) 
[ 98.519343][ T68] ? br_device_event (net/bridge/br.c:141) 
[ 98.519665][ T68] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 98.519986][ T68] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 98.520330][ T68] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 98.520727][ T68] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 98.521122][ T68] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 98.521469][ T68] ? cleanup_net (net/core/net_namespace.c:684) 
[ 98.521792][ T68] ? process_one_work (kernel/workqueue.c:3238) 
[ 98.522114][ T68] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 98.522451][ T68] ? kthread (kernel/kthread.c:464) 
[ 98.522697][ T68] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 98.523017][ T68] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 98.523367][ T68] netif_set_mtu (net/core/dev.c:9652) 
[ 98.523689][ T68] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 98.524028][ T68] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 98.524280][ T68] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 98.524618][ T68] br_del_if (net/bridge/br_if.c:743) 
[ 98.524873][ T68] br_device_event (net/bridge/br.c:141) 
[ 98.525196][ T68] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 98.525540][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 98.525871][ T68] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 98.526276][ T68] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 98.526700][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 98.527111][ T68] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 98.527478][ T68] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 98.527916][ T68] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 98.528358][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 98.528691][ T68] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 98.529099][ T68] ? 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) 
[ 98.529438][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 98.529846][ T68] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 98.530244][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 98.530657][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 98.531065][ T68] default_device_exit_batch (net/core/dev.c:12673) 
[ 98.531406][ T68] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 98.531815][ T68] ops_undo_list (net/core/net_namespace.c:250) 
[ 98.532146][ T68] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 98.532488][ T68] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 98.532820][ T68] cleanup_net (net/core/net_namespace.c:684) 
[ 98.533143][ T68] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 98.533482][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 98.533811][ T68] process_one_work (kernel/workqueue.c:3238) 
[ 98.534147][ T68] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 98.534488][ T68] ? assign_work (kernel/workqueue.c:1200) 
[ 98.534822][ T68] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 98.535155][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 98.535491][ T68] kthread (kernel/kthread.c:464) 
[ 98.535739][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 98.536060][ T68] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 98.536397][ T68] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 98.536724][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 98.537052][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 98.537403][ T68] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 98.537729][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 98.538051][ T68] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  120.315522][ T1467] ------------[ cut here ]------------
| [ 120.315832][ T1467] WARNING: CPU: 3 PID: 1467 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) 
| [  120.316455][ T1467] Modules linked in: vxlan
| [  120.317732][ T1467] Tainted: [W]=WARN
[  120.317971][ T1467] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 120.318373][ T1467] 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) 
[ 120.318703][ T1467] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  120.319815][ T1467] RSP: 0018:ffffc90003146ef0 EFLAGS: 00010246
[  120.320203][ T1467] RAX: 0000000000000000 RBX: ffff88801251a000 RCX: 0000000000000001
[  120.320666][ T1467] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  120.321121][ T1467] RBP: ffffc90003146fd8 R08: 0000000000000000 R09: 0000000000000000
[  120.321578][ T1467] R10: ffffc90003147008 R11: ffffffff9138d1e0 R12: 1ffff92000628de2
[  120.322039][ T1467] R13: 00000000000005dc R14: ffffc90003147008 R15: ffff88801251af48
[  120.322492][ T1467] FS:  00007fecbd656800(0000) GS:ffff8880d2919000(0000) knlGS:0000000000000000
[  120.323024][ T1467] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  120.323424][ T1467] CR2: 00000000004e6890 CR3: 0000000002665001 CR4: 0000000000772ef0
[  120.323876][ T1467] PKRU: 55555554
[  120.324106][ T1467] Call Trace:
[  120.324339][ T1467]  <TASK>
[ 120.324503][ T1467] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 120.324803][ T1467] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 120.325124][ T1467] netif_set_mtu (net/core/dev.c:9652) 
[ 120.325438][ T1467] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 120.325758][ T1467] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 120.326013][ T1467] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 120.326334][ T1467] br_add_if (net/bridge/br_if.c:697) 
[ 120.326581][ T1467] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 120.326878][ T1467] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 120.327181][ T1467] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 120.327508][ T1467] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 120.327889][ T1467] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 120.328207][ T1467] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 120.328536][ T1467] ? __kernel_text_address (kernel/extable.c:79) 
[ 120.328842][ T1467] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 120.329149][ T1467] ? __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) 
[ 120.329467][ T1467] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 120.329837][ T1467] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 120.330145][ T1467] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 120.330454][ T1467] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 120.330762][ T1467] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 120.331088][ T1467] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 120.331426][ T1467] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 120.331729][ T1467] ? __create_object (mm/kmemleak.c:771) 
[ 120.332042][ T1467] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 120.332359][ T1467] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 120.332668][ T1467] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 120.333059][ T1467] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 120.333393][ T1467] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 120.333706][ T1467] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 120.334116][ T1467] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 120.334433][ T1467] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 120.334746][ T1467] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 120.335053][ T1467] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 120.335373][ T1467] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 120.335680][ T1467] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 120.335994][ T1467] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 120.336311][ T1467] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 120.336635][ T1467] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 120.336944][ T1467] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 120.337255][ T1467] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 120.337584][ T1467] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 120.337889][ T1467] ? 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) 
[ 120.338204][ T1467] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 120.338521][ T1467] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 120.338818][ T1467] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 120.339123][ T1467] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 120.339433][ T1467] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 120.339733][ T1467] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 120.340048][ T1467] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 120.340367][ T1467] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 120.340680][ T1467] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 120.341081][ T1467] ___sys_sendmsg (net/socket.c:2670) 
[ 120.341387][ T1467] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 120.341692][ T1467] ? __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) 
[ 120.342072][ T1467] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 120.342382][ T1467] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 120.342701][ T1467] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 120.343005][ T1467] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 120.343315][ T1467] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 120.343621][ T1467] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 120.343926][ T1467] __sys_sendmsg (net/socket.c:2700) 
[ 120.344219][ T1467] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 120.344612][ T1467] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 120.344922][ T1467] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 120.345245][ T1467] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 120.345568][ T1467] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  120.345938][ T1467] RIP: 0033:0x7fecbd8231e7
[ 120.346257][ T1467] 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)
[  120.347346][ T1467] RSP: 002b:00007ffe0dad2c58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  120.347799][ T1467] RAX: ffffffffffffffda RBX: 00007ffe0dad3390 RCX: 00007fecbd8231e7
[  120.348246][ T1467] RDX: 0000000000000000 RSI: 00007ffe0dad2cc0 RDI: 0000000000000005
[  120.348718][ T1467] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  120.349242][ T1467] R10: 000000001d608910 R11: 0000000000000246 R12: 0000000000000003
[  120.349720][ T1467] R13: 00000000686e7be6 R14: 0000000000499600 R15: 0000000000000000
| [  122.147048][ T1496] ------------[ cut here ]------------
| [ 122.147446][ T1496] WARNING: CPU: 2 PID: 1496 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) 
| [  122.148101][ T1496] Modules linked in: vxlan
| [  122.149070][ T1496] Tainted: [W]=WARN
[  122.149327][ T1496] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 122.149716][ T1496] 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) 
[ 122.150036][ T1496] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  122.151140][ T1496] RSP: 0018:ffffc900032a6ef0 EFLAGS: 00010246
[  122.151566][ T1496] RAX: 0000000000000000 RBX: ffff88801251a000 RCX: 0000000000000001
[  122.152033][ T1496] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  122.152520][ T1496] RBP: ffffc900032a6fd8 R08: 0000000000000000 R09: 0000000000000000
[  122.152984][ T1496] R10: ffffc900032a7008 R11: ffffffff91cceab8 R12: 1ffff92000654de2
[  122.153460][ T1496] R13: 00000000000005aa R14: ffffc900032a7008 R15: ffff88801251af48
[  122.153920][ T1496] FS:  00007fb16b688800(0000) GS:ffff8880d2899000(0000) knlGS:0000000000000000
[  122.154475][ T1496] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  122.154865][ T1496] CR2: 00000000004e6890 CR3: 00000000127ef005 CR4: 0000000000772ef0
[  122.155358][ T1496] PKRU: 55555554
[  122.155600][ T1496] Call Trace:
[  122.155835][ T1496]  <TASK>
[ 122.156003][ T1496] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 122.156336][ T1496] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 122.156666][ T1496] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 122.157055][ T1496] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 122.157395][ T1496] netif_set_mtu (net/core/dev.c:9652) 
[ 122.157710][ T1496] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 122.158026][ T1496] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 122.158428][ T1496] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 122.158667][ T1496] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 122.158994][ T1496] br_add_if (net/bridge/br_if.c:697) 
[ 122.159243][ T1496] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 122.159588][ T1496] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 122.159913][ T1496] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 122.160236][ T1496] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 122.160636][ T1496] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 122.160950][ T1496] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 122.161271][ T1496] ? __kernel_text_address (kernel/extable.c:79) 
[ 122.161601][ T1496] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 122.161914][ T1496] ? __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) 
[ 122.162228][ T1496] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 122.162616][ T1496] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 122.162933][ T1496] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 122.163244][ T1496] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 122.163602][ T1496] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 122.163924][ T1496] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 122.164241][ T1496] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 122.164570][ T1496] ? __create_object (mm/kmemleak.c:771) 
[ 122.164898][ T1496] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 122.165209][ T1496] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 122.165541][ T1496] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 122.165924][ T1496] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 122.166242][ T1496] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 122.166585][ T1496] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 122.166895][ T1496] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 122.167211][ T1496] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 122.167548][ T1496] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 122.167859][ T1496] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 122.168170][ T1496] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 122.168495][ T1496] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 122.168818][ T1496] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 122.169133][ T1496] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 122.169459][ T1496] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 122.169772][ T1496] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 122.170084][ T1496] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 122.170412][ T1496] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 122.170723][ T1496] ? 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) 
[ 122.171039][ T1496] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 122.171377][ T1496] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 122.171698][ T1496] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 122.172014][ T1496] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 122.172341][ T1496] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 122.172656][ T1496] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 122.172978][ T1496] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 122.173316][ T1496] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 122.173625][ T1496] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 122.174018][ T1496] ___sys_sendmsg (net/socket.c:2670) 
[ 122.174336][ T1496] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 122.174642][ T1496] ? __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) 
[ 122.175034][ T1496] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 122.175378][ T1496] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 122.175707][ T1496] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 122.176019][ T1496] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 122.176340][ T1496] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 122.176655][ T1496] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 122.176977][ T1496] __sys_sendmsg (net/socket.c:2700) 
[ 122.177303][ T1496] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 122.177696][ T1496] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 122.178033][ T1496] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 122.178373][ T1496] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 122.178695][ T1496] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  122.179072][ T1496] RIP: 0033:0x7fb16b8551e7
[ 122.179422][ T1496] 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)
[  122.180526][ T1496] RSP: 002b:00007fff5012ded8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  122.180993][ T1496] RAX: ffffffffffffffda RBX: 00007fff5012e610 RCX: 00007fb16b8551e7
[  122.181459][ T1496] RDX: 0000000000000000 RSI: 00007fff5012df40 RDI: 0000000000000005
[  122.181925][ T1496] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  122.182402][ T1496] R10: 000000002062e910 R11: 0000000000000246 R12: 0000000000000003
[  122.182861][ T1496] R13: 00000000686e7be8 R14: 0000000000499600 R15: 0000000000000000
| [  126.087099][ T1546] ------------[ cut here ]------------
| [ 126.087449][ T1546] WARNING: CPU: 2 PID: 1546 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) 
| [  126.088053][ T1546] Modules linked in: vxlan
| [  126.088995][ T1546] Tainted: [W]=WARN
[  126.089232][ T1546] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 126.089623][ T1546] 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) 
[ 126.089947][ T1546] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  126.091024][ T1546] RSP: 0018:ffffc90003466ef0 EFLAGS: 00010246
[  126.091420][ T1546] RAX: 0000000000000000 RBX: ffff88800e392000 RCX: 0000000000000001
[  126.091878][ T1546] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  126.092345][ T1546] RBP: ffffc90003466fd8 R08: 0000000000000000 R09: 0000000000000000
[  126.092799][ T1546] R10: ffffc90003467008 R11: ffffffff9138d1e0 R12: 1ffff9200068cde2
[  126.093253][ T1546] R13: 00000000000005dc R14: ffffc90003467008 R15: ffff88800e392f48
[  126.093724][ T1546] FS:  00007f16244f1800(0000) GS:ffff8880d2899000(0000) knlGS:0000000000000000
[  126.094254][ T1546] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  126.094657][ T1546] CR2: 00000000004e6898 CR3: 000000001170d005 CR4: 0000000000772ef0
[  126.095119][ T1546] PKRU: 55555554
[  126.095369][ T1546] Call Trace:
[  126.095604][ T1546]  <TASK>
[ 126.095772][ T1546] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 126.096087][ T1546] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 126.096421][ T1546] netif_set_mtu (net/core/dev.c:9652) 
[ 126.096728][ T1546] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 126.097051][ T1546] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 126.097305][ T1546] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 126.097626][ T1546] br_add_if (net/bridge/br_if.c:697) 
[ 126.097872][ T1546] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 126.098179][ T1546] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 126.098501][ T1546] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 126.098810][ T1546] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 126.099197][ T1546] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 126.099528][ T1546] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 126.099845][ T1546] ? __kernel_text_address (kernel/extable.c:79) 
[ 126.100152][ T1546] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 126.100473][ T1546] ? __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) 
[ 126.100781][ T1546] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 126.101155][ T1546] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 126.101471][ T1546] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 126.101775][ T1546] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 126.102085][ T1546] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 126.102405][ T1546] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 126.102711][ T1546] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 126.103015][ T1546] ? __create_object (mm/kmemleak.c:771) 
[ 126.103332][ T1546] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 126.103643][ T1546] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 126.103950][ T1546] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 126.104348][ T1546] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 126.104659][ T1546] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 126.104968][ T1546] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 126.105272][ T1546] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 126.105593][ T1546] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 126.105900][ T1546] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 126.106200][ T1546] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 126.106523][ T1546] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 126.106834][ T1546] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 126.107141][ T1546] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 126.107468][ T1546] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 126.107778][ T1546] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 126.108081][ T1546] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 126.108398][ T1546] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 126.108714][ T1546] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 126.109025][ T1546] ? 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) 
[ 126.109341][ T1546] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 126.109652][ T1546] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 126.109955][ T1546] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 126.110266][ T1546] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 126.110586][ T1546] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 126.110895][ T1546] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 126.111206][ T1546] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 126.111533][ T1546] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 126.111838][ T1546] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 126.112229][ T1546] ___sys_sendmsg (net/socket.c:2670) 
[ 126.112542][ T1546] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 126.112847][ T1546] ? __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) 
[ 126.113222][ T1546] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 126.113547][ T1546] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 126.113855][ T1546] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 126.114168][ T1546] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 126.114486][ T1546] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 126.114794][ T1546] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 126.115105][ T1546] __sys_sendmsg (net/socket.c:2700) 
[ 126.115420][ T1546] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 126.115797][ T1546] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 126.116124][ T1546] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 126.116446][ T1546] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 126.116757][ T1546] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  126.117130][ T1546] RIP: 0033:0x7f16246be1e7
[ 126.117473][ T1546] 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)
[  126.118546][ T1546] RSP: 002b:00007ffefe764628 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  126.118999][ T1546] RAX: ffffffffffffffda RBX: 00007ffefe764d60 RCX: 00007f16246be1e7
[  126.119465][ T1546] RDX: 0000000000000000 RSI: 00007ffefe764690 RDI: 0000000000000005
[  126.119927][ T1546] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  126.120395][ T1546] R10: 000000000db83910 R11: 0000000000000246 R12: 0000000000000003
[  126.120850][ T1546] R13: 00000000686e7bec R14: 0000000000499600 R15: 0000000000000000
| [  127.755901][ T1572] ------------[ cut here ]------------
| [ 127.756229][ T1572] WARNING: CPU: 2 PID: 1572 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) 
| [  127.756877][ T1572] Modules linked in: vxlan
| [  127.757887][ T1572] Tainted: [W]=WARN
[  127.758128][ T1572] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 127.758526][ T1572] 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) 
[ 127.758863][ T1572] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  127.759970][ T1572] RSP: 0018:ffffc900034e6ef0 EFLAGS: 00010246
[  127.760370][ T1572] RAX: 0000000000000000 RBX: ffff88800e392000 RCX: 0000000000000001
[  127.760826][ T1572] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  127.761311][ T1572] RBP: ffffc900034e6fd8 R08: 0000000000000000 R09: 0000000000000000
[  127.761774][ T1572] R10: ffffc900034e7008 R11: ffffffff91cceab8 R12: 1ffff9200069cde2
[  127.762234][ T1572] R13: 0000000000000596 R14: ffffc900034e7008 R15: ffff88800e392f48
[  127.762713][ T1572] FS:  00007fd34efcd800(0000) GS:ffff8880d2899000(0000) knlGS:0000000000000000
[  127.763269][ T1572] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  127.763671][ T1572] CR2: 00000000004e6898 CR3: 00000000114d2002 CR4: 0000000000772ef0
[  127.764138][ T1572] PKRU: 55555554
[  127.764387][ T1572] Call Trace:
[  127.764629][ T1572]  <TASK>
[ 127.764800][ T1572] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 127.765123][ T1572] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 127.765461][ T1572] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 127.765853][ T1572] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 127.766171][ T1572] netif_set_mtu (net/core/dev.c:9652) 
[ 127.766499][ T1572] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 127.766816][ T1572] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 127.767214][ T1572] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 127.767480][ T1572] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 127.767819][ T1572] br_add_if (net/bridge/br_if.c:697) 
[ 127.768075][ T1572] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 127.768413][ T1572] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 127.768743][ T1572] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 127.769063][ T1572] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 127.769466][ T1572] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 127.769784][ T1572] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 127.770115][ T1572] ? __kernel_text_address (kernel/extable.c:79) 
[ 127.770445][ T1572] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 127.770764][ T1572] ? __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) 
[ 127.771086][ T1572] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 127.771485][ T1572] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 127.771798][ T1572] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 127.772106][ T1572] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 127.772436][ T1572] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 127.772751][ T1572] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 127.773062][ T1572] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 127.773389][ T1572] ? __create_object (mm/kmemleak.c:771) 
[ 127.773715][ T1572] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 127.774026][ T1572] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 127.774360][ T1572] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 127.774739][ T1572] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 127.775069][ T1572] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 127.775401][ T1572] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 127.775714][ T1572] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 127.776035][ T1572] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 127.776373][ T1572] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 127.776679][ T1572] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 127.776994][ T1572] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 127.777327][ T1572] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 127.777654][ T1572] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 127.777973][ T1572] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 127.778300][ T1572] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 127.778614][ T1572] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 127.778928][ T1572] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 127.779252][ T1572] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 127.779580][ T1572] ? 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) 
[ 127.779904][ T1572] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 127.780222][ T1572] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 127.780543][ T1572] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 127.780862][ T1572] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 127.781171][ T1572] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 127.781493][ T1572] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 127.781809][ T1572] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 127.782142][ T1572] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 127.782464][ T1572] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 127.782862][ T1572] ___sys_sendmsg (net/socket.c:2670) 
[ 127.783176][ T1572] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 127.783500][ T1572] ? __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) 
[ 127.783891][ T1572] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 127.784209][ T1572] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 127.784550][ T1572] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 127.784869][ T1572] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 127.785182][ T1572] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 127.785512][ T1572] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 127.785829][ T1572] __sys_sendmsg (net/socket.c:2700) 
[ 127.786138][ T1572] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 127.786528][ T1572] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 127.786864][ T1572] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 127.787177][ T1572] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 127.787517][ T1572] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  127.787903][ T1572] RIP: 0033:0x7fd34f19a1e7
[ 127.788231][ T1572] 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)
[  127.789327][ T1572] RSP: 002b:00007fff9c1b9f38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  127.789797][ T1572] RAX: ffffffffffffffda RBX: 00007fff9c1ba670 RCX: 00007fd34f19a1e7
[  127.790264][ T1572] RDX: 0000000000000000 RSI: 00007fff9c1b9fa0 RDI: 0000000000000005
[  127.790740][ T1572] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  127.791209][ T1572] R10: 00000000296a0910 R11: 0000000000000246 R12: 0000000000000003
[  127.791686][ T1572] R13: 00000000686e7bee R14: 0000000000499600 R15: 0000000000000000
| [  131.559536][ T1623] ------------[ cut here ]------------
| [ 131.559839][ T1623] WARNING: CPU: 0 PID: 1623 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) 
| [  131.560434][ T1623] Modules linked in: vxlan
| [  131.561933][ T1623] Tainted: [W]=WARN
[  131.562164][ T1623] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 131.562540][ T1623] 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) 
[ 131.562845][ T1623] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  131.563912][ T1623] RSP: 0018:ffffc90003616ef0 EFLAGS: 00010246
[  131.564310][ T1623] RAX: 0000000000000000 RBX: ffff88800d3f2000 RCX: 0000000000000001
[  131.564758][ T1623] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  131.565198][ T1623] RBP: ffffc90003616fd8 R08: 0000000000000000 R09: 0000000000000000
[  131.565652][ T1623] R10: ffffc90003617008 R11: ffffffff9138d1e0 R12: 1ffff920006c2de2
[  131.566097][ T1623] R13: 00000000000005dc R14: ffffc90003617008 R15: ffff88800d3f2f48
[  131.566565][ T1623] FS:  00007f8a0cb1b800(0000) GS:ffff8880d2799000(0000) knlGS:0000000000000000
[  131.567078][ T1623] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  131.567475][ T1623] CR2: 00000000004e6890 CR3: 000000000c603001 CR4: 0000000000772ef0
[  131.567920][ T1623] PKRU: 55555554
[  131.568139][ T1623] Call Trace:
[  131.568380][ T1623]  <TASK>
[ 131.568536][ T1623] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 131.568838][ T1623] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 131.569146][ T1623] netif_set_mtu (net/core/dev.c:9652) 
[ 131.569449][ T1623] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 131.569761][ T1623] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 131.569984][ T1623] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 131.570295][ T1623] br_add_if (net/bridge/br_if.c:697) 
[ 131.570529][ T1623] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 131.570829][ T1623] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 131.571126][ T1623] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 131.571430][ T1623] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 131.571809][ T1623] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 131.572102][ T1623] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 131.572408][ T1623] ? __kernel_text_address (kernel/extable.c:79) 
[ 131.572714][ T1623] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 131.573021][ T1623] ? __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) 
[ 131.573326][ T1623] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 131.573689][ T1623] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 131.573987][ T1623] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 131.574314][ T1623] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 131.574617][ T1623] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 131.574916][ T1623] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 131.575215][ T1623] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 131.575518][ T1623] ? __create_object (mm/kmemleak.c:771) 
[ 131.575824][ T1623] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 131.576117][ T1623] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 131.576420][ T1623] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 131.576792][ T1623] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 131.577093][ T1623] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 131.577410][ T1623] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 131.577713][ T1623] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 131.578010][ T1623] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 131.578315][ T1623] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 131.578610][ T1623] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 131.578909][ T1623] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 131.579203][ T1623] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 131.579508][ T1623] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 131.579810][ T1623] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 131.580118][ T1623] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 131.580421][ T1623] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 131.580722][ T1623] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 131.581030][ T1623] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 131.581331][ T1623] ? 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) 
[ 131.581625][ T1623] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 131.581924][ T1623] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 131.582223][ T1623] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 131.582530][ T1623] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 131.582832][ T1623] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 131.583128][ T1623] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 131.583436][ T1623] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 131.583738][ T1623] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 131.584027][ T1623] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 131.584416][ T1623] ___sys_sendmsg (net/socket.c:2670) 
[ 131.584712][ T1623] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 131.585006][ T1623] ? __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) 
[ 131.585377][ T1623] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 131.585675][ T1623] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 131.585973][ T1623] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 131.586270][ T1623] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 131.586642][ T1623] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 131.587140][ T1623] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 131.587704][ T1623] __sys_sendmsg (net/socket.c:2700) 
[ 131.588229][ T1623] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 131.588654][ T1623] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 131.588965][ T1623] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 131.589263][ T1623] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 131.589581][ T1623] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  131.589954][ T1623] RIP: 0033:0x7f8a0cce81e7
[ 131.590260][ T1623] 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)
[  131.591331][ T1623] RSP: 002b:00007ffc7318a658 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  131.591789][ T1623] RAX: ffffffffffffffda RBX: 00007ffc7318ad90 RCX: 00007f8a0cce81e7
[  131.592230][ T1623] RDX: 0000000000000000 RSI: 00007ffc7318a6c0 RDI: 0000000000000005
[  131.592675][ T1623] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  131.593123][ T1623] R10: 000000003627c910 R11: 0000000000000246 R12: 0000000000000003
[  131.593575][ T1623] R13: 00000000686e7bf1 R14: 0000000000499600 R15: 0000000000000000
| [  133.124115][ T1649] ------------[ cut here ]------------
| [ 133.124729][ T1649] WARNING: CPU: 3 PID: 1649 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) 
| [  133.125350][ T1649] Modules linked in: vxlan
| [  133.126318][ T1649] Tainted: [W]=WARN
[  133.126568][ T1649] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 133.126954][ T1649] 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) 
[ 133.127278][ T1649] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  133.128378][ T1649] RSP: 0018:ffffc900036c6ef0 EFLAGS: 00010246
[  133.128773][ T1649] RAX: 0000000000000000 RBX: ffff88800d3f2000 RCX: 0000000000000001
[  133.129227][ T1649] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  133.129694][ T1649] RBP: ffffc900036c6fd8 R08: 0000000000000000 R09: 0000000000000000
[  133.130144][ T1649] R10: ffffc900036c7008 R11: ffffffff91cceab8 R12: 1ffff920006d8de2
[  133.130610][ T1649] R13: 00000000000005aa R14: ffffc900036c7008 R15: ffff88800d3f2f48
[  133.131078][ T1649] FS:  00007f6c84d46800(0000) GS:ffff8880d2919000(0000) knlGS:0000000000000000
[  133.131630][ T1649] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  133.132017][ T1649] CR2: 00000000004e6890 CR3: 00000000129f4006 CR4: 0000000000772ef0
[  133.132491][ T1649] PKRU: 55555554
[  133.132724][ T1649] Call Trace:
[  133.132965][ T1649]  <TASK>
[ 133.133126][ T1649] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 133.133448][ T1649] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 133.133765][ T1649] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 133.134150][ T1649] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 133.134473][ T1649] netif_set_mtu (net/core/dev.c:9652) 
[ 133.134778][ T1649] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 133.135101][ T1649] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 133.135495][ T1649] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 133.135729][ T1649] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 133.136036][ T1649] br_add_if (net/bridge/br_if.c:697) 
[ 133.136270][ T1649] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 133.136592][ T1649] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 133.136900][ T1649] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 133.137204][ T1649] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 133.137631][ T1649] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 133.137939][ T1649] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 133.138237][ T1649] ? __kernel_text_address (kernel/extable.c:79) 
[ 133.138551][ T1649] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 133.138854][ T1649] ? __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) 
[ 133.139157][ T1649] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 133.139551][ T1649] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 133.139859][ T1649] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 133.140155][ T1649] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 133.140466][ T1649] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 133.140766][ T1649] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 133.141068][ T1649] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 133.141377][ T1649] ? __create_object (mm/kmemleak.c:771) 
[ 133.141680][ T1649] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 133.141986][ T1649] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 133.142304][ T1649] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 133.142672][ T1649] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 133.142975][ T1649] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 133.143302][ T1649] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 133.143602][ T1649] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 133.143905][ T1649] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 133.144206][ T1649] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 133.144532][ T1649] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 133.144834][ T1649] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 133.145129][ T1649] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 133.145441][ T1649] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 133.145746][ T1649] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 133.146053][ T1649] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 133.146371][ T1649] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 133.146686][ T1649] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 133.147001][ T1649] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 133.147320][ T1649] ? 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) 
[ 133.147620][ T1649] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 133.147921][ T1649] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 133.148218][ T1649] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 133.148536][ T1649] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 133.148858][ T1649] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 133.149161][ T1649] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 133.149487][ T1649] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 133.149800][ T1649] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 133.150099][ T1649] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 133.150511][ T1649] ___sys_sendmsg (net/socket.c:2670) 
[ 133.150810][ T1649] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 133.151123][ T1649] ? __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) 
[ 133.151512][ T1649] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 133.151817][ T1649] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 133.152123][ T1649] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 133.152448][ T1649] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 133.152752][ T1649] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 133.153053][ T1649] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 133.153377][ T1649] __sys_sendmsg (net/socket.c:2700) 
[ 133.153688][ T1649] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 133.154059][ T1649] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 133.154383][ T1649] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 133.154685][ T1649] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 133.154987][ T1649] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  133.155371][ T1649] RIP: 0033:0x7f6c84f131e7
[ 133.155695][ T1649] 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)
[  133.156800][ T1649] RSP: 002b:00007ffe72340a28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  133.157269][ T1649] RAX: ffffffffffffffda RBX: 00007ffe72341160 RCX: 00007f6c84f131e7
[  133.157740][ T1649] RDX: 0000000000000000 RSI: 00007ffe72340a90 RDI: 0000000000000005
[  133.158200][ T1649] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  133.158664][ T1649] R10: 0000000009676910 R11: 0000000000000246 R12: 0000000000000003
[  133.159121][ T1649] R13: 00000000686e7bf3 R14: 0000000000499600 R15: 0000000000000000
| [  137.226179][ T1699] ------------[ cut here ]------------
| [ 137.227915][ T1699] WARNING: CPU: 2 PID: 1699 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) 
| [  137.228622][ T1699] Modules linked in: vxlan
| [  137.229678][ T1699] Tainted: [W]=WARN
[  137.229937][ T1699] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 137.230380][ T1699] 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) 
[ 137.230729][ T1699] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  137.231923][ T1699] RSP: 0018:ffffc90003856ef0 EFLAGS: 00010246
[  137.232366][ T1699] RAX: 0000000000000000 RBX: ffff88800f0e2000 RCX: 0000000000000001
[  137.232880][ T1699] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  137.233396][ T1699] RBP: ffffc90003856fd8 R08: 0000000000000000 R09: 0000000000000000
[  137.233902][ T1699] R10: ffffc90003857008 R11: ffffffff9138d1e0 R12: 1ffff9200070ade2
[  137.234417][ T1699] R13: 00000000000005dc R14: ffffc90003857008 R15: ffff88800f0e2f48
[  137.234924][ T1699] FS:  00007f655d7d4800(0000) GS:ffff8880d2899000(0000) knlGS:0000000000000000
[  137.235518][ T1699] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  137.235936][ T1699] CR2: 00000000004e6898 CR3: 000000001238b005 CR4: 0000000000772ef0
[  137.236447][ T1699] PKRU: 55555554
[  137.236709][ T1699] Call Trace:
[  137.236965][ T1699]  <TASK>
[ 137.237144][ T1699] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 137.237527][ T1699] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 137.237879][ T1699] netif_set_mtu (net/core/dev.c:9652) 
[ 137.238208][ T1699] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 137.238561][ T1699] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 137.238817][ T1699] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 137.239154][ T1699] br_add_if (net/bridge/br_if.c:697) 
[ 137.239428][ T1699] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 137.239769][ T1699] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 137.240110][ T1699] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 137.240452][ T1699] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 137.240866][ T1699] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 137.241196][ T1699] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 137.241545][ T1699] ? __kernel_text_address (kernel/extable.c:79) 
[ 137.241884][ T1699] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 137.242226][ T1699] ? __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) 
[ 137.242569][ T1699] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 137.242973][ T1699] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 137.243316][ T1699] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 137.243645][ T1699] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 137.243975][ T1699] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 137.244324][ T1699] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 137.244674][ T1699] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 137.245003][ T1699] ? __create_object (mm/kmemleak.c:771) 
[ 137.245368][ T1699] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 137.245700][ T1699] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 137.246040][ T1699] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 137.246465][ T1699] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 137.246802][ T1699] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 137.247140][ T1699] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 137.247492][ T1699] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 137.247828][ T1699] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 137.248164][ T1699] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 137.248497][ T1699] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 137.248833][ T1699] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 137.249161][ T1699] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 137.249516][ T1699] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 137.249850][ T1699] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 137.250201][ T1699] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 137.250541][ T1699] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 137.250871][ T1699] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 137.251207][ T1699] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 137.251545][ T1699] ? 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) 
[ 137.251875][ T1699] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 137.252234][ T1699] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 137.252581][ T1699] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 137.252910][ T1699] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 137.253233][ T1699] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 137.253574][ T1699] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 137.253915][ T1699] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 137.254246][ T1699] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 137.254571][ T1699] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 137.254994][ T1699] ___sys_sendmsg (net/socket.c:2670) 
[ 137.255321][ T1699] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 137.255647][ T1699] ? __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) 
[ 137.256203][ T1699] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 137.256833][ T1699] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 137.257474][ T1699] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 137.257985][ T1699] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 137.258348][ T1699] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 137.258677][ T1699] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 137.259007][ T1699] __sys_sendmsg (net/socket.c:2700) 
[ 137.259347][ T1699] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 137.259732][ T1699] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 137.260057][ T1699] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 137.260397][ T1699] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 137.260728][ T1699] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  137.261111][ T1699] RIP: 0033:0x7f655d9a11e7
[ 137.261483][ T1699] 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)
[  137.262594][ T1699] RSP: 002b:00007ffed70b6cc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  137.263088][ T1699] RAX: ffffffffffffffda RBX: 00007ffed70b7400 RCX: 00007f655d9a11e7
[  137.263568][ T1699] RDX: 0000000000000000 RSI: 00007ffed70b6d30 RDI: 0000000000000005
[  137.264030][ T1699] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  137.264515][ T1699] R10: 0000000017f6c910 R11: 0000000000000246 R12: 0000000000000003
[  137.264985][ T1699] R13: 00000000686e7bf7 R14: 0000000000499600 R15: 0000000000000000
| [  139.114998][ T1725] ------------[ cut here ]------------
| [ 139.116142][ T1725] WARNING: CPU: 3 PID: 1725 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) 
| [  139.116816][ T1725] Modules linked in: vxlan
| [  139.117809][ T1725] Tainted: [W]=WARN
[  139.118043][ T1725] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 139.118450][ T1725] 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) 
[ 139.118783][ T1725] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  139.119888][ T1725] RSP: 0018:ffffc900038f6ef0 EFLAGS: 00010246
[  139.120281][ T1725] RAX: 0000000000000000 RBX: ffff88800f0e2000 RCX: 0000000000000001
[  139.120767][ T1725] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  139.121213][ T1725] RBP: ffffc900038f6fd8 R08: 0000000000000000 R09: 0000000000000000
[  139.121679][ T1725] R10: ffffc900038f7008 R11: ffffffff9138d1e0 R12: 1ffff9200071ede2
[  139.122130][ T1725] R13: 0000000000000596 R14: ffffc900038f7008 R15: ffff88800f0e2f48
[  139.122603][ T1725] FS:  00007f3f2c199800(0000) GS:ffff8880d2919000(0000) knlGS:0000000000000000
[  139.123149][ T1725] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  139.123552][ T1725] CR2: 00000000004e6898 CR3: 00000000111e4005 CR4: 0000000000772ef0
[  139.124014][ T1725] PKRU: 55555554
[  139.124244][ T1725] Call Trace:
[  139.124487][ T1725]  <TASK>
[ 139.124647][ T1725] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 139.124962][ T1725] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 139.125310][ T1725] netif_set_mtu (net/core/dev.c:9652) 
[ 139.125623][ T1725] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 139.125945][ T1725] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 139.126177][ T1725] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 139.126514][ T1725] br_add_if (net/bridge/br_if.c:697) 
[ 139.126752][ T1725] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 139.127054][ T1725] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 139.127390][ T1725] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 139.127697][ T1725] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 139.128078][ T1725] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 139.128386][ T1725] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 139.128690][ T1725] ? __kernel_text_address (kernel/extable.c:79) 
[ 139.128987][ T1725] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 139.129320][ T1725] ? __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) 
[ 139.129637][ T1725] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 139.130012][ T1725] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 139.130334][ T1725] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 139.130637][ T1725] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 139.130940][ T1725] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 139.131243][ T1725] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 139.131547][ T1725] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 139.131848][ T1725] ? __create_object (mm/kmemleak.c:771) 
[ 139.132199][ T1725] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 139.132512][ T1725] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 139.132820][ T1725] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 139.133200][ T1725] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 139.133520][ T1725] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 139.133834][ T1725] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 139.134140][ T1725] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 139.134471][ T1725] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 139.134771][ T1725] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 139.135076][ T1725] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 139.135394][ T1725] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 139.135701][ T1725] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 139.136006][ T1725] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 139.136324][ T1725] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 139.136646][ T1725] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 139.136953][ T1725] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 139.137283][ T1725] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 139.137621][ T1725] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 139.137922][ T1725] ? 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) 
[ 139.138224][ T1725] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 139.138535][ T1725] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 139.138844][ T1725] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 139.139151][ T1725] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 139.139467][ T1725] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 139.139765][ T1725] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 139.140077][ T1725] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 139.140391][ T1725] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 139.140687][ T1725] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 139.141093][ T1725] ___sys_sendmsg (net/socket.c:2670) 
[ 139.141420][ T1725] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 139.141731][ T1725] ? __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) 
[ 139.142131][ T1725] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 139.142447][ T1725] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 139.142757][ T1725] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 139.143061][ T1725] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 139.143375][ T1725] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 139.143689][ T1725] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 139.144001][ T1725] __sys_sendmsg (net/socket.c:2700) 
[ 139.144335][ T1725] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 139.144708][ T1725] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 139.145020][ T1725] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 139.145343][ T1725] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 139.145651][ T1725] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  139.146046][ T1725] RIP: 0033:0x7f3f2c3661e7
[ 139.146377][ T1725] 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)
[  139.147494][ T1725] RSP: 002b:00007ffc025ace68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  139.147967][ T1725] RAX: ffffffffffffffda RBX: 00007ffc025ad5a0 RCX: 00007f3f2c3661e7
[  139.148442][ T1725] RDX: 0000000000000000 RSI: 00007ffc025aced0 RDI: 0000000000000005
[  139.148902][ T1725] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  139.149373][ T1725] R10: 000000000bb11910 R11: 0000000000000246 R12: 0000000000000003
[  139.149829][ T1725] R13: 00000000686e7bf9 R14: 0000000000499600 R15: 0000000000000000
| [  144.018676][   T68] ------------[ cut here ]------------
| [ 144.019012][ T68] WARNING: CPU: 0 PID: 68 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) 
| [  144.019593][   T68] Modules linked in: vxlan
| [  144.020665][   T68] Tainted: [W]=WARN
[  144.020910][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  144.021337][   T68] Workqueue: netns cleanup_net
[ 144.021686][ T68] 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) 
[ 144.022038][ T68] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  144.023228][   T68] RSP: 0018:ffffc90000497360 EFLAGS: 00010246
[  144.023660][   T68] RAX: 0000000000000000 RBX: ffff88800f0e2000 RCX: 0000000000000001
[  144.024164][   T68] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  144.024670][   T68] RBP: ffffc90000497450 R08: 0000000000000000 R09: 0000000000000000
[  144.025185][   T68] R10: ffffc90000497480 R11: ffffffff9138d1e0 R12: 1ffff92000092e70
[  144.025676][   T68] R13: 00000000000005dc R14: ffffc90000497480 R15: ffff88800f0e2f48
[  144.026184][   T68] FS:  0000000000000000(0000) GS:ffff8880d2799000(0000) knlGS:0000000000000000
[  144.026776][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  144.027192][   T68] CR2: 00007ffcb1ab5d28 CR3: 0000000012bd5005 CR4: 0000000000772ef0
[  144.027738][   T68] PKRU: 55555554
[  144.027989][   T68] Call Trace:
[  144.028244][   T68]  <TASK>
[ 144.028423][ T68] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 144.028755][ T68] ? __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) 
[ 144.029168][ T68] ? br_del_if (net/bridge/br_if.c:742) 
[ 144.029422][ T68] ? br_device_event (net/bridge/br.c:141) 
[ 144.029758][ T68] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 144.030084][ T68] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 144.030429][ T68] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 144.030839][ T68] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 144.031245][ T68] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 144.031572][ T68] ? cleanup_net (net/core/net_namespace.c:684) 
[ 144.031895][ T68] ? process_one_work (kernel/workqueue.c:3238) 
[ 144.032231][ T68] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 144.032561][ T68] ? kthread (kernel/kthread.c:464) 
[ 144.032810][ T68] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 144.033144][ T68] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 144.033494][ T68] netif_set_mtu (net/core/dev.c:9652) 
[ 144.033828][ T68] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 144.034178][ T68] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 144.034443][ T68] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 144.034779][ T68] br_del_if (net/bridge/br_if.c:743) 
[ 144.035033][ T68] br_device_event (net/bridge/br.c:141) 
[ 144.035374][ T68] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 144.035720][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 144.036055][ T68] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 144.036491][ T68] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 144.036927][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 144.037387][ T68] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 144.037736][ T68] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 144.038161][ T68] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 144.038606][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 144.038945][ T68] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 144.039378][ T68] ? 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) 
[ 144.039723][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 144.040141][ T68] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 144.040561][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 144.040972][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 144.041412][ T68] default_device_exit_batch (net/core/dev.c:12673) 
[ 144.041746][ T68] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 144.042165][ T68] ops_undo_list (net/core/net_namespace.c:250) 
[ 144.042516][ T68] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 144.042853][ T68] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 144.043209][ T68] cleanup_net (net/core/net_namespace.c:684) 
[ 144.043547][ T68] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 144.043877][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 144.044217][ T68] process_one_work (kernel/workqueue.c:3238) 
[ 144.044566][ T68] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 144.044903][ T68] ? assign_work (kernel/workqueue.c:1200) 
[ 144.045245][ T68] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 144.045593][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 144.045930][ T68] kthread (kernel/kthread.c:464) 
[ 144.046184][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 144.046521][ T68] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 144.046855][ T68] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 144.047190][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 144.047575][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 144.048142][ T68] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 144.048482][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 144.048810][ T68] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  144.074217][   T68] ------------[ cut here ]------------
| [ 144.075306][ T68] WARNING: CPU: 0 PID: 68 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) 
| [  144.075888][   T68] Modules linked in: vxlan
| [  144.077017][   T68] Tainted: [W]=WARN
[  144.077313][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  144.077767][   T68] Workqueue: netns cleanup_net
[ 144.078119][ T68] 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) 
[ 144.078476][ T68] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  144.079670][   T68] RSP: 0018:ffffc90000497360 EFLAGS: 00010246
[  144.080094][   T68] RAX: 0000000000000000 RBX: ffff88800d3f2000 RCX: 0000000000000001
[  144.080596][   T68] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  144.081090][   T68] RBP: ffffc90000497450 R08: 0000000000000000 R09: 0000000000000000
[  144.081595][   T68] R10: ffffc90000497480 R11: ffffffff9138d1e0 R12: 1ffff92000092e70
[  144.082099][   T68] R13: 00000000000005dc R14: ffffc90000497480 R15: ffff88800d3f2f48
[  144.082616][   T68] FS:  0000000000000000(0000) GS:ffff8880d2799000(0000) knlGS:0000000000000000
[  144.083184][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  144.083598][   T68] CR2: 00007ffcb1ab5d28 CR3: 0000000012bd5005 CR4: 0000000000772ef0
[  144.084097][   T68] PKRU: 55555554
[  144.084349][   T68] Call Trace:
[  144.084588][   T68]  <TASK>
[ 144.084750][ T68] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 144.085073][ T68] ? __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) 
[ 144.085505][ T68] ? br_del_if (net/bridge/br_if.c:742) 
[ 144.085751][ T68] ? br_device_event (net/bridge/br.c:141) 
[ 144.086079][ T68] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 144.086426][ T68] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 144.086751][ T68] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 144.087159][ T68] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 144.087634][ T68] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 144.087957][ T68] ? cleanup_net (net/core/net_namespace.c:684) 
[ 144.088282][ T68] ? process_one_work (kernel/workqueue.c:3238) 
[ 144.088629][ T68] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 144.088967][ T68] ? kthread (kernel/kthread.c:464) 
[ 144.089216][ T68] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 144.089546][ T68] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 144.089885][ T68] netif_set_mtu (net/core/dev.c:9652) 
[ 144.090212][ T68] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 144.090562][ T68] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 144.090822][ T68] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 144.091146][ T68] br_del_if (net/bridge/br_if.c:743) 
[ 144.091405][ T68] br_device_event (net/bridge/br.c:141) 
[ 144.091723][ T68] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 144.092049][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 144.092417][ T68] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 144.092843][ T68] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 144.093304][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 144.093731][ T68] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 144.094098][ T68] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 144.094554][ T68] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 144.095007][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 144.095370][ T68] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 144.095806][ T68] ? 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) 
[ 144.096153][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 144.096584][ T68] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 144.096989][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 144.097430][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 144.097847][ T68] default_device_exit_batch (net/core/dev.c:12673) 
[ 144.098179][ T68] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 144.098604][ T68] ops_undo_list (net/core/net_namespace.c:250) 
[ 144.098945][ T68] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 144.099275][ T68] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 144.099619][ T68] cleanup_net (net/core/net_namespace.c:684) 
[ 144.099955][ T68] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 144.100298][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 144.100633][ T68] process_one_work (kernel/workqueue.c:3238) 
[ 144.100971][ T68] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 144.101323][ T68] ? assign_work (kernel/workqueue.c:1200) 
[ 144.101662][ T68] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 144.101999][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 144.102339][ T68] kthread (kernel/kthread.c:464) 
[ 144.102590][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 144.102917][ T68] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 144.103245][ T68] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 144.103585][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 144.103915][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 144.104250][ T68] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 144.104586][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 144.104916][ T68] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  166.107813][ T1959] ------------[ cut here ]------------
| [ 166.108129][ T1959] WARNING: CPU: 2 PID: 1959 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) 
| [  166.108740][ T1959] Modules linked in: vxlan
| [  166.109694][ T1959] Tainted: [W]=WARN
[  166.109939][ T1959] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 166.110334][ T1959] 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) 
[ 166.110655][ T1959] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  166.111730][ T1959] RSP: 0018:ffffc90003cb6ef0 EFLAGS: 00010246
[  166.112116][ T1959] RAX: 0000000000000000 RBX: ffff88801269a000 RCX: 0000000000000001
[  166.112578][ T1959] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  166.113032][ T1959] RBP: ffffc90003cb6fd8 R08: 0000000000000000 R09: 0000000000000000
[  166.113498][ T1959] R10: ffffc90003cb7008 R11: ffffffff9138d1e0 R12: 1ffff92000796de2
[  166.113950][ T1959] R13: 00000000000005dc R14: ffffc90003cb7008 R15: ffff88801269af48
[  166.114417][ T1959] FS:  00007f0770715800(0000) GS:ffff8880d2899000(0000) knlGS:0000000000000000
[  166.114950][ T1959] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  166.115345][ T1959] CR2: 00000000004e6890 CR3: 0000000011375001 CR4: 0000000000772ef0
[  166.115810][ T1959] PKRU: 55555554
[  166.116045][ T1959] Call Trace:
[  166.116279][ T1959]  <TASK>
[ 166.116466][ T1959] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 166.116777][ T1959] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 166.117103][ T1959] netif_set_mtu (net/core/dev.c:9652) 
[ 166.117440][ T1959] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 166.117776][ T1959] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 166.118014][ T1959] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 166.118338][ T1959] br_add_if (net/bridge/br_if.c:697) 
[ 166.118586][ T1959] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 166.118900][ T1959] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 166.119212][ T1959] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 166.119534][ T1959] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 166.119917][ T1959] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 166.120223][ T1959] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 166.120536][ T1959] ? __kernel_text_address (kernel/extable.c:79) 
[ 166.120849][ T1959] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 166.121164][ T1959] ? __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) 
[ 166.121481][ T1959] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 166.121861][ T1959] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 166.122169][ T1959] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 166.122499][ T1959] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 166.122807][ T1959] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 166.123113][ T1959] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 166.123438][ T1959] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 166.123742][ T1959] ? __create_object (mm/kmemleak.c:771) 
[ 166.124050][ T1959] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 166.124365][ T1959] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 166.124675][ T1959] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 166.125046][ T1959] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 166.125370][ T1959] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 166.125684][ T1959] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 166.125996][ T1959] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 166.126316][ T1959] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 166.126628][ T1959] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 166.126933][ T1959] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 166.127244][ T1959] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 166.127566][ T1959] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 166.127878][ T1959] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 166.128193][ T1959] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 166.128519][ T1959] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 166.128827][ T1959] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 166.129135][ T1959] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 166.129463][ T1959] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 166.129771][ T1959] ? 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) 
[ 166.130078][ T1959] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 166.130400][ T1959] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 166.130706][ T1959] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 166.131018][ T1959] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 166.131344][ T1959] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 166.131649][ T1959] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 166.131964][ T1959] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 166.132270][ T1959] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 166.132585][ T1959] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 166.132981][ T1959] ___sys_sendmsg (net/socket.c:2670) 
[ 166.133298][ T1959] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 166.133603][ T1959] ? __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) 
[ 166.133983][ T1959] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 166.134304][ T1959] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 166.134616][ T1959] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 166.134930][ T1959] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 166.135242][ T1959] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 166.135559][ T1959] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 166.135877][ T1959] __sys_sendmsg (net/socket.c:2700) 
[ 166.136179][ T1959] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 166.136566][ T1959] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 166.136885][ T1959] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 166.137192][ T1959] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 166.137526][ T1959] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  166.137907][ T1959] RIP: 0033:0x7f07708e21e7
[ 166.138221][ T1959] 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)
[  166.139302][ T1959] RSP: 002b:00007ffd5e666d28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  166.139765][ T1959] RAX: ffffffffffffffda RBX: 00007ffd5e667460 RCX: 00007f07708e21e7
[  166.140220][ T1959] RDX: 0000000000000000 RSI: 00007ffd5e666d90 RDI: 0000000000000005
[  166.140680][ T1959] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  166.141135][ T1959] R10: 0000000027b63910 R11: 0000000000000246 R12: 0000000000000003
[  166.141605][ T1959] R13: 00000000686e7c14 R14: 0000000000499600 R15: 0000000000000000
| [  167.756991][ T1985] ------------[ cut here ]------------
| [ 167.757360][ T1985] WARNING: CPU: 0 PID: 1985 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) 
| [  167.757979][ T1985] Modules linked in: vxlan
| [  167.758931][ T1985] Tainted: [W]=WARN
[  167.759160][ T1985] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 167.759550][ T1985] 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) 
[ 167.759863][ T1985] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  167.760957][ T1985] RSP: 0018:ffffc900042d6ef0 EFLAGS: 00010246
[  167.761346][ T1985] RAX: 0000000000000000 RBX: ffff88801269a000 RCX: 0000000000000001
[  167.761790][ T1985] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  167.762243][ T1985] RBP: ffffc900042d6fd8 R08: 0000000000000000 R09: 0000000000000000
[  167.762694][ T1985] R10: ffffc900042d7008 R11: ffffffff91cceab8 R12: 1ffff9200085ade2
[  167.763141][ T1985] R13: 00000000000005aa R14: ffffc900042d7008 R15: ffff88801269af48
[  167.763609][ T1985] FS:  00007f67eda15800(0000) GS:ffff8880d2799000(0000) knlGS:0000000000000000
[  167.764155][ T1985] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  167.764556][ T1985] CR2: 00000000004e6890 CR3: 000000000adcb002 CR4: 0000000000772ef0
[  167.765008][ T1985] PKRU: 55555554
[  167.765232][ T1985] Call Trace:
[  167.765466][ T1985]  <TASK>
[ 167.765621][ T1985] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 167.765923][ T1985] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 167.766239][ T1985] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 167.766627][ T1985] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 167.766933][ T1985] netif_set_mtu (net/core/dev.c:9652) 
[ 167.767234][ T1985] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 167.767571][ T1985] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 167.767955][ T1985] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 167.768181][ T1985] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 167.768519][ T1985] br_add_if (net/bridge/br_if.c:697) 
[ 167.768756][ T1985] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 167.769052][ T1985] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 167.769370][ T1985] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 167.769675][ T1985] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 167.770052][ T1985] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 167.770367][ T1985] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 167.770669][ T1985] ? __kernel_text_address (kernel/extable.c:79) 
[ 167.770969][ T1985] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 167.771269][ T1985] ? __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) 
[ 167.771603][ T1985] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 167.771971][ T1985] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 167.772273][ T1985] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 167.772586][ T1985] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 167.772895][ T1985] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 167.773196][ T1985] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 167.773507][ T1985] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 167.773810][ T1985] ? __create_object (mm/kmemleak.c:771) 
[ 167.774111][ T1985] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 167.774420][ T1985] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 167.774726][ T1985] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 167.775096][ T1985] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 167.775427][ T1985] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 167.775736][ T1985] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 167.776048][ T1985] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 167.776364][ T1985] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 167.776666][ T1985] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 167.776960][ T1985] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 167.777259][ T1985] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 167.777586][ T1985] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 167.777900][ T1985] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 167.778201][ T1985] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 167.778516][ T1985] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 167.778818][ T1985] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 167.779115][ T1985] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 167.779434][ T1985] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 167.779729][ T1985] ? 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) 
[ 167.780038][ T1985] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 167.780354][ T1985] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 167.780655][ T1985] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 167.780958][ T1985] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 167.781265][ T1985] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 167.781578][ T1985] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 167.781882][ T1985] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 167.782189][ T1985] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 167.782501][ T1985] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 167.782882][ T1985] ___sys_sendmsg (net/socket.c:2670) 
[ 167.783177][ T1985] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 167.783488][ T1985] ? __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) 
[ 167.783862][ T1985] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 167.784162][ T1985] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 167.784494][ T1985] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 167.784801][ T1985] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 167.785102][ T1985] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 167.785415][ T1985] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 167.785721][ T1985] __sys_sendmsg (net/socket.c:2700) 
[ 167.786022][ T1985] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 167.786399][ T1985] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 167.786728][ T1985] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 167.787028][ T1985] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 167.787346][ T1985] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  167.787722][ T1985] RIP: 0033:0x7f67edbe21e7
[ 167.788040][ T1985] 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)
[  167.789126][ T1985] RSP: 002b:00007ffdc90eaa68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  167.789587][ T1985] RAX: ffffffffffffffda RBX: 00007ffdc90eb1a0 RCX: 00007f67edbe21e7
[  167.790032][ T1985] RDX: 0000000000000000 RSI: 00007ffdc90eaad0 RDI: 0000000000000005
[  167.790484][ T1985] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  167.790940][ T1985] R10: 000000001270e910 R11: 0000000000000246 R12: 0000000000000003
[  167.791397][ T1985] R13: 00000000686e7c16 R14: 0000000000499600 R15: 0000000000000000
| [  171.778615][ T2035] ------------[ cut here ]------------
| [ 171.778917][ T2035] WARNING: CPU: 0 PID: 2035 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) 
| [  171.779525][ T2035] Modules linked in: vxlan
| [  171.780465][ T2035] Tainted: [W]=WARN
[  171.780702][ T2035] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 171.781078][ T2035] 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) 
[ 171.781398][ T2035] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  171.782469][ T2035] RSP: 0018:ffffc90004476ef0 EFLAGS: 00010246
[  171.782850][ T2035] RAX: 0000000000000000 RBX: ffff88800e642000 RCX: 0000000000000001
[  171.783317][ T2035] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  171.783777][ T2035] RBP: ffffc90004476fd8 R08: 0000000000000000 R09: 0000000000000000
[  171.784237][ T2035] R10: ffffc90004477008 R11: ffffffff9138d1e0 R12: 1ffff9200088ede2
[  171.784693][ T2035] R13: 00000000000005dc R14: ffffc90004477008 R15: ffff88800e642f48
[  171.785144][ T2035] FS:  00007f96de35f800(0000) GS:ffff8880d2799000(0000) knlGS:0000000000000000
[  171.785677][ T2035] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  171.786051][ T2035] CR2: 00000000004e6898 CR3: 0000000004fe4006 CR4: 0000000000772ef0
[  171.786509][ T2035] PKRU: 55555554
[  171.786733][ T2035] Call Trace:
[  171.786958][ T2035]  <TASK>
[ 171.787123][ T2035] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 171.787460][ T2035] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 171.787774][ T2035] netif_set_mtu (net/core/dev.c:9652) 
[ 171.788067][ T2035] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 171.788392][ T2035] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 171.788619][ T2035] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 171.788918][ T2035] br_add_if (net/bridge/br_if.c:697) 
[ 171.789150][ T2035] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 171.789453][ T2035] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 171.789758][ T2035] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 171.790059][ T2035] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 171.790442][ T2035] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 171.790740][ T2035] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 171.791031][ T2035] ? __kernel_text_address (kernel/extable.c:79) 
[ 171.791337][ T2035] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 171.791638][ T2035] ? __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) 
[ 171.791946][ T2035] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 171.792326][ T2035] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 171.792627][ T2035] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 171.792924][ T2035] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 171.793220][ T2035] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 171.793530][ T2035] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 171.793827][ T2035] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 171.794125][ T2035] ? __create_object (mm/kmemleak.c:771) 
[ 171.794437][ T2035] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 171.794733][ T2035] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 171.795031][ T2035] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 171.795405][ T2035] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 171.795710][ T2035] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 171.796008][ T2035] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 171.796318][ T2035] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 171.796628][ T2035] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 171.796924][ T2035] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 171.797219][ T2035] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 171.797550][ T2035] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 171.797867][ T2035] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 171.798163][ T2035] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 171.798494][ T2035] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 171.798798][ T2035] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 171.799102][ T2035] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 171.799414][ T2035] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 171.799723][ T2035] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 171.800019][ T2035] ? 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) 
[ 171.800331][ T2035] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 171.800634][ T2035] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 171.800951][ T2035] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 171.801250][ T2035] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 171.801559][ T2035] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 171.801858][ T2035] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 171.802159][ T2035] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 171.802465][ T2035] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 171.802757][ T2035] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 171.803137][ T2035] ___sys_sendmsg (net/socket.c:2670) 
[ 171.803453][ T2035] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 171.803751][ T2035] ? __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) 
[ 171.804121][ T2035] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 171.804426][ T2035] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 171.804725][ T2035] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 171.805027][ T2035] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 171.805334][ T2035] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 171.805636][ T2035] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 171.805942][ T2035] __sys_sendmsg (net/socket.c:2700) 
[ 171.806234][ T2035] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 171.806613][ T2035] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 171.806924][ T2035] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 171.807221][ T2035] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 171.807546][ T2035] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  171.807922][ T2035] RIP: 0033:0x7f96de52c1e7
[ 171.808227][ T2035] 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)
[  171.809303][ T2035] RSP: 002b:00007ffc7dfef1f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  171.809753][ T2035] RAX: ffffffffffffffda RBX: 00007ffc7dfef930 RCX: 00007f96de52c1e7
[  171.810205][ T2035] RDX: 0000000000000000 RSI: 00007ffc7dfef260 RDI: 0000000000000005
[  171.810660][ T2035] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  171.811102][ T2035] R10: 0000000004e22910 R11: 0000000000000246 R12: 0000000000000003
[  171.811557][ T2035] R13: 00000000686e7c1a R14: 0000000000499600 R15: 0000000000000000
| [  173.422738][ T2061] ------------[ cut here ]------------
| [ 173.423059][ T2061] WARNING: CPU: 1 PID: 2061 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) 
| [  173.424127][ T2061] Modules linked in: vxlan
| [  173.425089][ T2061] Tainted: [W]=WARN
[  173.425325][ T2061] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 173.425710][ T2061] 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) 
[ 173.426021][ T2061] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  173.427141][ T2061] RSP: 0018:ffffc90004506ef0 EFLAGS: 00010246
[  173.427552][ T2061] RAX: 0000000000000000 RBX: ffff88800e642000 RCX: 0000000000000001
[  173.428006][ T2061] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  173.428455][ T2061] RBP: ffffc90004506fd8 R08: 0000000000000000 R09: 0000000000000000
[  173.428905][ T2061] R10: ffffc90004507008 R11: ffffffff9138d1e0 R12: 1ffff920008a0de2
[  173.429365][ T2061] R13: 0000000000000596 R14: ffffc90004507008 R15: ffff88800e642f48
[  173.429818][ T2061] FS:  00007fbff7c21800(0000) GS:ffff8880d2819000(0000) knlGS:0000000000000000
[  173.430347][ T2061] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  173.430721][ T2061] CR2: 00000000004e6898 CR3: 0000000009719001 CR4: 0000000000772ef0
[  173.431180][ T2061] PKRU: 55555554
[  173.431433][ T2061] Call Trace:
[  173.431662][ T2061]  <TASK>
[ 173.431817][ T2061] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 173.432120][ T2061] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 173.432443][ T2061] netif_set_mtu (net/core/dev.c:9652) 
[ 173.432746][ T2061] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 173.433058][ T2061] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 173.433311][ T2061] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 173.433618][ T2061] br_add_if (net/bridge/br_if.c:697) 
[ 173.433859][ T2061] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 173.434165][ T2061] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 173.434477][ T2061] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 173.434786][ T2061] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 173.435165][ T2061] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 173.435507][ T2061] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 173.435810][ T2061] ? __kernel_text_address (kernel/extable.c:79) 
[ 173.436112][ T2061] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 173.436429][ T2061] ? __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) 
[ 173.436738][ T2061] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 173.437107][ T2061] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 173.437431][ T2061] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 173.437728][ T2061] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 173.438041][ T2061] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 173.438362][ T2061] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 173.438671][ T2061] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 173.438976][ T2061] ? __create_object (mm/kmemleak.c:771) 
[ 173.439320][ T2061] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 173.439625][ T2061] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 173.439932][ T2061] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 173.440330][ T2061] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 173.440641][ T2061] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 173.440946][ T2061] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 173.441240][ T2061] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 173.441555][ T2061] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 173.441866][ T2061] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 173.442170][ T2061] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 173.442483][ T2061] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 173.442795][ T2061] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 173.443107][ T2061] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 173.443439][ T2061] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 173.443745][ T2061] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 173.444045][ T2061] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 173.444355][ T2061] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 173.444669][ T2061] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 173.444982][ T2061] ? 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) 
[ 173.445297][ T2061] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 173.445598][ T2061] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 173.445889][ T2061] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 173.446191][ T2061] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 173.446496][ T2061] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 173.446795][ T2061] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 173.447135][ T2061] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 173.447481][ T2061] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 173.447776][ T2061] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 173.448155][ T2061] ___sys_sendmsg (net/socket.c:2670) 
[ 173.448456][ T2061] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 173.448755][ T2061] ? __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) 
[ 173.449134][ T2061] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 173.449454][ T2061] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 173.449764][ T2061] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 173.450072][ T2061] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 173.450376][ T2061] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 173.450676][ T2061] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 173.450977][ T2061] __sys_sendmsg (net/socket.c:2700) 
[ 173.451272][ T2061] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 173.451666][ T2061] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 173.451987][ T2061] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 173.452303][ T2061] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 173.452604][ T2061] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  173.452971][ T2061] RIP: 0033:0x7fbff7dee1e7
[ 173.453295][ T2061] 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)
[  173.454455][ T2061] RSP: 002b:00007ffcd7271d88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  173.454909][ T2061] RAX: ffffffffffffffda RBX: 00007ffcd72724c0 RCX: 00007fbff7dee1e7
[  173.455379][ T2061] RDX: 0000000000000000 RSI: 00007ffcd7271df0 RDI: 0000000000000005
[  173.455840][ T2061] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  173.456320][ T2061] R10: 00000000270e1910 R11: 0000000000000246 R12: 0000000000000003
[  173.456774][ T2061] R13: 00000000686e7c1b R14: 0000000000499600 R15: 0000000000000000
| [  177.726278][ T2112] ------------[ cut here ]------------
| [ 177.726654][ T2112] WARNING: CPU: 0 PID: 2112 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) 
| [  177.727340][ T2112] Modules linked in: vxlan
| [  177.729241][ T2112] Tainted: [W]=WARN
[  177.729509][ T2112] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 177.729919][ T2112] 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) 
[ 177.730264][ T2112] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  177.731501][ T2112] RSP: 0018:ffffc90004696ef0 EFLAGS: 00010246
[  177.731928][ T2112] RAX: 0000000000000000 RBX: ffff88800e3e2000 RCX: 0000000000000001
[  177.732417][ T2112] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  177.732924][ T2112] RBP: ffffc90004696fd8 R08: 0000000000000000 R09: 0000000000000000
[  177.733398][ T2112] R10: ffffc90004697008 R11: ffffffff9138d1e0 R12: 1ffff920008d2de2
[  177.733880][ T2112] R13: 00000000000005dc R14: ffffc90004697008 R15: ffff88800e3e2f48
[  177.734368][ T2112] FS:  00007f254fa6a800(0000) GS:ffff8880d2799000(0000) knlGS:0000000000000000
[  177.734934][ T2112] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  177.735361][ T2112] CR2: 00000000004e6890 CR3: 0000000012b31006 CR4: 0000000000772ef0
[  177.735863][ T2112] PKRU: 55555554
[  177.736102][ T2112] Call Trace:
[  177.736353][ T2112]  <TASK>
[ 177.736517][ T2112] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 177.736867][ T2112] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 177.737202][ T2112] netif_set_mtu (net/core/dev.c:9652) 
[ 177.737546][ T2112] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 177.737900][ T2112] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 177.738149][ T2112] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 177.738505][ T2112] br_add_if (net/bridge/br_if.c:697) 
[ 177.738747][ T2112] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 177.739073][ T2112] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 177.739416][ T2112] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 177.739729][ T2112] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 177.740133][ T2112] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 177.740456][ T2112] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 177.740782][ T2112] ? __kernel_text_address (kernel/extable.c:79) 
[ 177.741109][ T2112] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 177.741437][ T2112] ? __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) 
[ 177.741771][ T2112] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 177.742179][ T2112] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 177.742515][ T2112] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 177.742871][ T2112] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 177.743243][ T2112] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 177.743605][ T2112] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 177.743948][ T2112] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 177.744273][ T2112] ? __create_object (mm/kmemleak.c:771) 
[ 177.744621][ T2112] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 177.744953][ T2112] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 177.745276][ T2112] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 177.745683][ T2112] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 177.746044][ T2112] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 177.746384][ T2112] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 177.746695][ T2112] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 177.747049][ T2112] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 177.747418][ T2112] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 177.747749][ T2112] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 177.748085][ T2112] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 177.748415][ T2112] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 177.748742][ T2112] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 177.749090][ T2112] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 177.749431][ T2112] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 177.749752][ T2112] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 177.750076][ T2112] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 177.750410][ T2112] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 177.750728][ T2112] ? 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) 
[ 177.751070][ T2112] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 177.751420][ T2112] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 177.751730][ T2112] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 177.752046][ T2112] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 177.752385][ T2112] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 177.752694][ T2112] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 177.753013][ T2112] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 177.753369][ T2112] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 177.753679][ T2112] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 177.754072][ T2112] ___sys_sendmsg (net/socket.c:2670) 
[ 177.754402][ T2112] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 177.754711][ T2112] ? __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) 
[ 177.755107][ T2112] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 177.755488][ T2112] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 177.755826][ T2112] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 177.756143][ T2112] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 177.756487][ T2112] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 177.756812][ T2112] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 177.757134][ T2112] __sys_sendmsg (net/socket.c:2700) 
[ 177.757506][ T2112] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 177.757898][ T2112] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 177.758257][ T2112] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 177.758658][ T2112] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 177.758979][ T2112] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  177.759414][ T2112] RIP: 0033:0x7f254fc371e7
[ 177.759747][ T2112] 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)
[  177.760902][ T2112] RSP: 002b:00007ffe28ddbc48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  177.761427][ T2112] RAX: ffffffffffffffda RBX: 00007ffe28ddc380 RCX: 00007f254fc371e7
[  177.761913][ T2112] RDX: 0000000000000000 RSI: 00007ffe28ddbcb0 RDI: 0000000000000005
[  177.762416][ T2112] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  177.762905][ T2112] R10: 0000000022444910 R11: 0000000000000246 R12: 0000000000000003
[  177.763425][ T2112] R13: 00000000686e7c20 R14: 0000000000499600 R15: 0000000000000000
| [  179.739938][ T2138] ------------[ cut here ]------------
| [ 179.740272][ T2138] WARNING: CPU: 2 PID: 2138 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) 
| [  179.740899][ T2138] Modules linked in: vxlan
| [  179.742602][ T2138] Tainted: [W]=WARN
[  179.742847][ T2138] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 179.743232][ T2138] 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) 
[ 179.743567][ T2138] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  179.744658][ T2138] RSP: 0018:ffffc900046e6ef0 EFLAGS: 00010246
[  179.745049][ T2138] RAX: 0000000000000000 RBX: ffff88800e3e2000 RCX: 0000000000000001
[  179.745516][ T2138] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  179.745974][ T2138] RBP: ffffc900046e6fd8 R08: 0000000000000000 R09: 0000000000000000
[  179.746449][ T2138] R10: ffffc900046e7008 R11: ffffffff9138d1e0 R12: 1ffff920008dcde2
[  179.746911][ T2138] R13: 00000000000005aa R14: ffffc900046e7008 R15: ffff88800e3e2f48
[  179.747394][ T2138] FS:  00007fad87315800(0000) GS:ffff8880d2899000(0000) knlGS:0000000000000000
[  179.747927][ T2138] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  179.748333][ T2138] CR2: 00000000004e6890 CR3: 0000000012a19004 CR4: 0000000000772ef0
[  179.748794][ T2138] PKRU: 55555554
[  179.749031][ T2138] Call Trace:
[  179.749264][ T2138]  <TASK>
[ 179.749461][ T2138] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 179.749768][ T2138] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 179.750088][ T2138] netif_set_mtu (net/core/dev.c:9652) 
[ 179.750424][ T2138] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 179.750755][ T2138] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 179.750995][ T2138] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 179.751325][ T2138] br_add_if (net/bridge/br_if.c:697) 
[ 179.751573][ T2138] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 179.751878][ T2138] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 179.752191][ T2138] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 179.752517][ T2138] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 179.752910][ T2138] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 179.753215][ T2138] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 179.753533][ T2138] ? __kernel_text_address (kernel/extable.c:79) 
[ 179.753844][ T2138] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 179.754158][ T2138] ? __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) 
[ 179.754474][ T2138] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 179.754865][ T2138] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 179.755198][ T2138] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 179.755524][ T2138] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 179.755833][ T2138] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 179.756146][ T2138] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 179.756467][ T2138] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 179.756774][ T2138] ? __create_object (mm/kmemleak.c:771) 
[ 179.757082][ T2138] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 179.757416][ T2138] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 179.757726][ T2138] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 179.758104][ T2138] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 179.758426][ T2138] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 179.758741][ T2138] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 179.759049][ T2138] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 179.759377][ T2138] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 179.759686][ T2138] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 179.760001][ T2138] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 179.760324][ T2138] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 179.760638][ T2138] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 179.760948][ T2138] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 179.761258][ T2138] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 179.761581][ T2138] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 179.761893][ T2138] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 179.762211][ T2138] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 179.762541][ T2138] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 179.762850][ T2138] ? 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) 
[ 179.763158][ T2138] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 179.763483][ T2138] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 179.763786][ T2138] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 179.764103][ T2138] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 179.764434][ T2138] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 179.764743][ T2138] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 179.765058][ T2138] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 179.765387][ T2138] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 179.765687][ T2138] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 179.766078][ T2138] ___sys_sendmsg (net/socket.c:2670) 
[ 179.766392][ T2138] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 179.766705][ T2138] ? __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) 
[ 179.767085][ T2138] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 179.767415][ T2138] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 179.767726][ T2138] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 179.768040][ T2138] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 179.768358][ T2138] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 179.768667][ T2138] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 179.768984][ T2138] __sys_sendmsg (net/socket.c:2700) 
[ 179.769316][ T2138] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 179.769698][ T2138] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 179.770021][ T2138] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 179.770341][ T2138] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 179.770655][ T2138] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  179.771035][ T2138] RIP: 0033:0x7fad874e21e7
[ 179.771365][ T2138] 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)
[  179.772448][ T2138] RSP: 002b:00007ffebb46d5d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  179.772908][ T2138] RAX: ffffffffffffffda RBX: 00007ffebb46dd10 RCX: 00007fad874e21e7
[  179.773372][ T2138] RDX: 0000000000000000 RSI: 00007ffebb46d640 RDI: 0000000000000005
[  179.773838][ T2138] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  179.774301][ T2138] R10: 00000000398cc910 R11: 0000000000000246 R12: 0000000000000003
[  179.774753][ T2138] R13: 00000000686e7c22 R14: 0000000000499600 R15: 0000000000000000
| [  183.435522][ T2188] ------------[ cut here ]------------
| [ 183.435820][ T2188] WARNING: CPU: 1 PID: 2188 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) 
| [  183.436411][ T2188] Modules linked in: vxlan
| [  183.437340][ T2188] Tainted: [W]=WARN
[  183.437568][ T2188] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 183.437941][ T2188] 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) 
[ 183.438246][ T2188] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  183.439316][ T2188] RSP: 0018:ffffc90004566ef0 EFLAGS: 00010246
[  183.439693][ T2188] RAX: 0000000000000000 RBX: ffff888009e9a000 RCX: 0000000000000001
[  183.440135][ T2188] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  183.440588][ T2188] RBP: ffffc90004566fd8 R08: 0000000000000000 R09: 0000000000000000
[  183.441031][ T2188] R10: ffffc90004567008 R11: ffffffff9138d1e0 R12: 1ffff920008acde2
[  183.441490][ T2188] R13: 00000000000005dc R14: ffffc90004567008 R15: ffff888009e9af48
[  183.441936][ T2188] FS:  00007f28214fc800(0000) GS:ffff8880d2819000(0000) knlGS:0000000000000000
[  183.442457][ T2188] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  183.442832][ T2188] CR2: 00000000004e6898 CR3: 000000000ac58001 CR4: 0000000000772ef0
[  183.443281][ T2188] PKRU: 55555554
[  183.443522][ T2188] Call Trace:
[  183.443744][ T2188]  <TASK>
[ 183.443898][ T2188] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 183.444192][ T2188] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 183.444509][ T2188] netif_set_mtu (net/core/dev.c:9652) 
[ 183.444803][ T2188] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 183.445112][ T2188] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 183.445348][ T2188] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 183.445647][ T2188] br_add_if (net/bridge/br_if.c:697) 
[ 183.445887][ T2188] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 183.446180][ T2188] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 183.446499][ T2188] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 183.446797][ T2188] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 183.447166][ T2188] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 183.447553][ T2188] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 183.447857][ T2188] ? __kernel_text_address (kernel/extable.c:79) 
[ 183.448199][ T2188] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 183.448527][ T2188] ? __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) 
[ 183.448823][ T2188] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 183.449255][ T2188] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 183.449809][ T2188] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 183.450258][ T2188] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 183.450566][ T2188] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 183.450872][ T2188] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 183.451186][ T2188] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 183.451493][ T2188] ? __create_object (mm/kmemleak.c:771) 
[ 183.451790][ T2188] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 183.452088][ T2188] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 183.452426][ T2188] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 183.452797][ T2188] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 183.453111][ T2188] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 183.453680][ T2188] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 183.454154][ T2188] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 183.454471][ T2188] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 183.454779][ T2188] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 183.455075][ T2188] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 183.455400][ T2188] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 183.455695][ T2188] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 183.455998][ T2188] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 183.456342][ T2188] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 183.456642][ T2188] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 183.456935][ T2188] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 183.457279][ T2188] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 183.457611][ T2188] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 183.457902][ T2188] ? 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) 
[ 183.458206][ T2188] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 183.458515][ T2188] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 183.458808][ T2188] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 183.459108][ T2188] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 183.459419][ T2188] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 183.459715][ T2188] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 183.460016][ T2188] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 183.460361][ T2188] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 183.460664][ T2188] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 183.461040][ T2188] ___sys_sendmsg (net/socket.c:2670) 
[ 183.461348][ T2188] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 183.461645][ T2188] ? __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) 
[ 183.462010][ T2188] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 183.462318][ T2188] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 183.462623][ T2188] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 183.462923][ T2188] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 183.463218][ T2188] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 183.463522][ T2188] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 183.463824][ T2188] __sys_sendmsg (net/socket.c:2700) 
[ 183.464115][ T2188] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 183.464491][ T2188] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 183.464799][ T2188] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 183.465112][ T2188] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 183.465450][ T2188] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  183.465815][ T2188] RIP: 0033:0x7f28216c91e7
[ 183.466118][ T2188] 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)
[  183.467182][ T2188] RSP: 002b:00007ffd06502938 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  183.467646][ T2188] RAX: ffffffffffffffda RBX: 00007ffd06503070 RCX: 00007f28216c91e7
[  183.468088][ T2188] RDX: 0000000000000000 RSI: 00007ffd065029a0 RDI: 0000000000000005
[  183.468538][ T2188] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  183.468984][ T2188] R10: 000000002fb02910 R11: 0000000000000246 R12: 0000000000000003
[  183.469471][ T2188] R13: 00000000686e7c25 R14: 0000000000499600 R15: 0000000000000000
| [  185.028915][ T2214] ------------[ cut here ]------------
| [ 185.029235][ T2214] WARNING: CPU: 2 PID: 2214 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) 
| [  185.030232][ T2214] Modules linked in: vxlan
| [  185.031166][ T2214] Tainted: [W]=WARN
[  185.031419][ T2214] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 185.031799][ T2214] 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) 
[ 185.032117][ T2214] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  185.033199][ T2214] RSP: 0018:ffffc90004936ef0 EFLAGS: 00010246
[  185.033602][ T2214] RAX: 0000000000000000 RBX: ffff888009e9a000 RCX: 0000000000000001
[  185.034054][ T2214] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  185.034513][ T2214] RBP: ffffc90004936fd8 R08: 0000000000000000 R09: 0000000000000000
[  185.034964][ T2214] R10: ffffc90004937008 R11: ffffffff9138d1e0 R12: 1ffff92000926de2
[  185.035434][ T2214] R13: 0000000000000596 R14: ffffc90004937008 R15: ffff888009e9af48
[  185.035887][ T2214] FS:  00007fc747642800(0000) GS:ffff8880d2899000(0000) knlGS:0000000000000000
[  185.036424][ T2214] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  185.036809][ T2214] CR2: 00000000004e6898 CR3: 0000000012b9b004 CR4: 0000000000772ef0
[  185.037270][ T2214] PKRU: 55555554
[  185.037526][ T2214] Call Trace:
[  185.037759][ T2214]  <TASK>
[ 185.037926][ T2214] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 185.038236][ T2214] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 185.038927][ T2214] netif_set_mtu (net/core/dev.c:9652) 
[ 185.039240][ T2214] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 185.039577][ T2214] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 185.039816][ T2214] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 185.040134][ T2214] br_add_if (net/bridge/br_if.c:697) 
[ 185.040390][ T2214] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 185.040694][ T2214] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 185.041007][ T2214] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 185.041328][ T2214] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 185.041715][ T2214] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 185.042020][ T2214] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 185.042339][ T2214] ? __kernel_text_address (kernel/extable.c:79) 
[ 185.042650][ T2214] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 185.042960][ T2214] ? __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) 
[ 185.043263][ T2214] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 185.043666][ T2214] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 185.043972][ T2214] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 185.044277][ T2214] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 185.044597][ T2214] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 185.044908][ T2214] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 185.045212][ T2214] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 185.045533][ T2214] ? __create_object (mm/kmemleak.c:771) 
[ 185.045839][ T2214] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 185.046148][ T2214] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 185.046464][ T2214] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 185.046840][ T2214] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 185.047159][ T2214] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 185.047495][ T2214] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 185.047804][ T2214] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 185.048117][ T2214] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 185.048438][ T2214] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 185.048741][ T2214] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 185.049051][ T2214] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 185.049366][ T2214] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 185.049681][ T2214] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 185.049991][ T2214] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 185.050315][ T2214] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 185.050621][ T2214] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 185.050931][ T2214] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 185.051247][ T2214] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 185.051560][ T2214] ? 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) 
[ 185.051873][ T2214] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 185.052186][ T2214] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 185.052498][ T2214] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 185.052812][ T2214] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 185.053120][ T2214] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 185.053436][ T2214] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 185.053750][ T2214] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 185.054067][ T2214] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 185.054382][ T2214] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 185.054776][ T2214] ___sys_sendmsg (net/socket.c:2670) 
[ 185.055093][ T2214] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 185.055410][ T2214] ? __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) 
[ 185.055790][ T2214] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 185.056100][ T2214] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 185.056426][ T2214] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 185.056740][ T2214] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 185.057044][ T2214] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 185.057370][ T2214] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 185.057687][ T2214] __sys_sendmsg (net/socket.c:2700) 
[ 185.057990][ T2214] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 185.058377][ T2214] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 185.058735][ T2214] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 185.059049][ T2214] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 185.059371][ T2214] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  185.059749][ T2214] RIP: 0033:0x7fc74780f1e7
[ 185.060065][ T2214] 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)
[  185.061138][ T2214] RSP: 002b:00007fffe4208cc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  185.061617][ T2214] RAX: ffffffffffffffda RBX: 00007fffe4209400 RCX: 00007fc74780f1e7
[  185.062070][ T2214] RDX: 0000000000000000 RSI: 00007fffe4208d30 RDI: 0000000000000005
[  185.062529][ T2214] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  185.062986][ T2214] R10: 0000000033c57910 R11: 0000000000000246 R12: 0000000000000003
[  185.063448][ T2214] R13: 00000000686e7c27 R14: 0000000000499600 R15: 0000000000000000
| [  189.392982][   T68] ------------[ cut here ]------------
| [ 189.393323][ T68] WARNING: CPU: 3 PID: 68 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) 
| [  189.393893][   T68] Modules linked in: vxlan
| [  189.394967][   T68] Tainted: [W]=WARN
[  189.395214][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  189.395633][   T68] Workqueue: netns cleanup_net
[ 189.395971][ T68] 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) 
[ 189.396362][ T68] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  189.397560][   T68] RSP: 0018:ffffc90000497360 EFLAGS: 00010246
[  189.397992][   T68] RAX: 0000000000000000 RBX: ffff888009e9a000 RCX: 0000000000000001
[  189.398495][   T68] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  189.398975][   T68] RBP: ffffc90000497450 R08: 0000000000000000 R09: 0000000000000000
[  189.399463][   T68] R10: ffffc90000497480 R11: ffffffff9138d1e0 R12: 1ffff92000092e70
[  189.399954][   T68] R13: 00000000000005dc R14: ffffc90000497480 R15: ffff888009e9af48
[  189.400450][   T68] FS:  0000000000000000(0000) GS:ffff8880d2919000(0000) knlGS:0000000000000000
[  189.401018][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  189.401437][   T68] CR2: 00007f8fcdb76810 CR3: 000000007394a004 CR4: 0000000000772ef0
[  189.402095][   T68] PKRU: 55555554
[  189.402538][   T68] Call Trace:
[  189.402869][   T68]  <TASK>
[ 189.403043][ T68] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 189.403398][ T68] ? __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) 
[ 189.403804][ T68] ? br_del_if (net/bridge/br_if.c:742) 
[ 189.404053][ T68] ? br_device_event (net/bridge/br.c:141) 
[ 189.404391][ T68] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 189.404721][ T68] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 189.405047][ T68] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 189.405472][ T68] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 189.405873][ T68] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 189.406198][ T68] ? cleanup_net (net/core/net_namespace.c:684) 
[ 189.406527][ T68] ? process_one_work (kernel/workqueue.c:3238) 
[ 189.406845][ T68] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 189.407163][ T68] ? kthread (kernel/kthread.c:464) 
[ 189.407424][ T68] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 189.407748][ T68] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 189.408087][ T68] netif_set_mtu (net/core/dev.c:9652) 
[ 189.408418][ T68] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 189.408759][ T68] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 189.409006][ T68] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 189.409344][ T68] br_del_if (net/bridge/br_if.c:743) 
[ 189.409589][ T68] br_device_event (net/bridge/br.c:141) 
[ 189.409915][ T68] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 189.410248][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 189.410589][ T68] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 189.411000][ T68] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 189.411426][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 189.411835][ T68] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 189.412173][ T68] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 189.412596][ T68] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 189.413029][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 189.413365][ T68] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 189.413774][ T68] ? 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) 
[ 189.414102][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 189.414510][ T68] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 189.414910][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 189.415323][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 189.415737][ T68] default_device_exit_batch (net/core/dev.c:12673) 
[ 189.416061][ T68] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 189.416483][ T68] ops_undo_list (net/core/net_namespace.c:250) 
[ 189.416813][ T68] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 189.417135][ T68] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 189.417484][ T68] cleanup_net (net/core/net_namespace.c:684) 
[ 189.417816][ T68] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 189.418139][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 189.418472][ T68] process_one_work (kernel/workqueue.c:3238) 
[ 189.418803][ T68] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 189.419133][ T68] ? assign_work (kernel/workqueue.c:1200) 
[ 189.419465][ T68] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 189.419796][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 189.420120][ T68] kthread (kernel/kthread.c:464) 
[ 189.420373][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 189.420691][ T68] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 189.421009][ T68] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 189.421348][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 189.421673][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 189.421995][ T68] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 189.422323][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 189.422645][ T68] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  189.460862][   T68] ------------[ cut here ]------------
| [ 189.461216][ T68] WARNING: CPU: 3 PID: 68 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) 
| [  189.461885][   T68] Modules linked in: vxlan
| [  189.462966][   T68] Tainted: [W]=WARN
[  189.463214][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  189.463650][   T68] Workqueue: netns cleanup_net
[ 189.464140][ T68] 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) 
[ 189.464504][ T68] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  189.465662][   T68] RSP: 0018:ffffc90000497360 EFLAGS: 00010246
[  189.466075][   T68] RAX: 0000000000000000 RBX: ffff88800e3e2000 RCX: 0000000000000001
[  189.466576][   T68] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  189.467061][   T68] RBP: ffffc90000497450 R08: 0000000000000000 R09: 0000000000000000
[  189.467564][   T68] R10: ffffc90000497480 R11: ffffffff9138d1e0 R12: 1ffff92000092e70
[  189.468050][   T68] R13: 00000000000005dc R14: ffffc90000497480 R15: ffff88800e3e2f48
[  189.468552][   T68] FS:  0000000000000000(0000) GS:ffff8880d2919000(0000) knlGS:0000000000000000
[  189.469125][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  189.469541][   T68] CR2: 00007f8fcdb76810 CR3: 000000007394a004 CR4: 0000000000772ef0
[  189.470035][   T68] PKRU: 55555554
[  189.470279][   T68] Call Trace:
[  189.470527][   T68]  <TASK>
[ 189.470699][ T68] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 189.471031][ T68] ? __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) 
[ 189.471440][ T68] ? br_del_if (net/bridge/br_if.c:742) 
[ 189.471685][ T68] ? br_device_event (net/bridge/br.c:141) 
[ 189.472010][ T68] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 189.472340][ T68] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 189.472661][ T68] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 189.473067][ T68] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 189.473487][ T68] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 189.473811][ T68] ? cleanup_net (net/core/net_namespace.c:684) 
[ 189.474132][ T68] ? process_one_work (kernel/workqueue.c:3238) 
[ 189.474464][ T68] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 189.474787][ T68] ? kthread (kernel/kthread.c:464) 
[ 189.475038][ T68] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 189.475371][ T68] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 189.475711][ T68] netif_set_mtu (net/core/dev.c:9652) 
[ 189.476033][ T68] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 189.476379][ T68] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 189.476629][ T68] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 189.476952][ T68] br_del_if (net/bridge/br_if.c:743) 
[ 189.477196][ T68] br_device_event (net/bridge/br.c:141) 
[ 189.477536][ T68] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 189.477875][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 189.478206][ T68] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 189.478618][ T68] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 189.479041][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 189.479457][ T68] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 189.479798][ T68] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 189.480245][ T68] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 189.480683][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 189.481014][ T68] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 189.481429][ T68] ? 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) 
[ 189.481761][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 189.482162][ T68] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 189.482571][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 189.482979][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 189.483397][ T68] default_device_exit_batch (net/core/dev.c:12673) 
[ 189.483722][ T68] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 189.484131][ T68] ops_undo_list (net/core/net_namespace.c:250) 
[ 189.484471][ T68] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 189.484791][ T68] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 189.485125][ T68] cleanup_net (net/core/net_namespace.c:684) 
[ 189.485460][ T68] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 189.485788][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 189.486123][ T68] process_one_work (kernel/workqueue.c:3238) 
[ 189.486464][ T68] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 189.486791][ T68] ? assign_work (kernel/workqueue.c:1200) 
[ 189.487118][ T68] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 189.487467][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 189.487799][ T68] kthread (kernel/kthread.c:464) 
[ 189.488047][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 189.488373][ T68] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 189.488701][ T68] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 189.489025][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 189.489360][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 189.489681][ T68] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 189.490001][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 189.490342][ T68] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  211.899996][ T2465] ------------[ cut here ]------------
| [ 211.900320][ T2465] WARNING: CPU: 2 PID: 2465 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) 
| [  211.900919][ T2465] Modules linked in: vxlan
| [  211.901857][ T2465] Tainted: [W]=WARN
[  211.902101][ T2465] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 211.902499][ T2465] 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) 
[ 211.902822][ T2465] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  211.903896][ T2465] RSP: 0018:ffffc900052b6ef0 EFLAGS: 00010246
[  211.904294][ T2465] RAX: 0000000000000000 RBX: ffff888012782000 RCX: 0000000000000001
[  211.904757][ T2465] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  211.905212][ T2465] RBP: ffffc900052b6fd8 R08: 0000000000000000 R09: 0000000000000000
[  211.905677][ T2465] R10: ffffc900052b7008 R11: ffffffff9138d1e0 R12: 1ffff92000a56de2
[  211.906134][ T2465] R13: 00000000000005dc R14: ffffc900052b7008 R15: ffff888012782f48
[  211.906593][ T2465] FS:  00007f9997ed3800(0000) GS:ffff8880d2899000(0000) knlGS:0000000000000000
[  211.907123][ T2465] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  211.907523][ T2465] CR2: 00000000004e6890 CR3: 000000000e7a4002 CR4: 0000000000772ef0
[  211.907980][ T2465] PKRU: 55555554
[  211.908214][ T2465] Call Trace:
[  211.908455][ T2465]  <TASK>
[ 211.908621][ T2465] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 211.908931][ T2465] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 211.909252][ T2465] netif_set_mtu (net/core/dev.c:9652) 
[ 211.909570][ T2465] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 211.909902][ T2465] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 211.910138][ T2465] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 211.910466][ T2465] br_add_if (net/bridge/br_if.c:697) 
[ 211.910713][ T2465] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 211.911021][ T2465] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 211.911339][ T2465] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 211.911651][ T2465] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 211.912038][ T2465] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 211.912354][ T2465] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 211.912658][ T2465] ? __kernel_text_address (kernel/extable.c:79) 
[ 211.912967][ T2465] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 211.913275][ T2465] ? __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) 
[ 211.913591][ T2465] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 211.913968][ T2465] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 211.914291][ T2465] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 211.914599][ T2465] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 211.914905][ T2465] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 211.915214][ T2465] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 211.915528][ T2465] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 211.915834][ T2465] ? __create_object (mm/kmemleak.c:771) 
[ 211.916143][ T2465] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 211.916475][ T2465] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 211.916787][ T2465] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 211.917164][ T2465] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 211.917499][ T2465] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 211.917814][ T2465] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 211.918117][ T2465] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 211.918437][ T2465] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 211.918744][ T2465] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 211.919068][ T2465] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 211.919395][ T2465] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 211.919708][ T2465] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 211.920015][ T2465] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 211.920336][ T2465] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 211.920647][ T2465] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 211.920952][ T2465] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 211.921259][ T2465] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 211.921591][ T2465] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 211.921893][ T2465] ? 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) 
[ 211.922201][ T2465] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 211.922517][ T2465] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 211.922824][ T2465] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 211.923135][ T2465] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 211.923453][ T2465] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 211.923764][ T2465] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 211.924077][ T2465] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 211.924394][ T2465] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 211.924699][ T2465] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 211.925086][ T2465] ___sys_sendmsg (net/socket.c:2670) 
[ 211.925399][ T2465] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 211.925702][ T2465] ? __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) 
[ 211.926086][ T2465] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 211.926402][ T2465] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 211.926715][ T2465] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 211.927024][ T2465] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 211.927346][ T2465] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 211.927654][ T2465] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 211.927968][ T2465] __sys_sendmsg (net/socket.c:2700) 
[ 211.928271][ T2465] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 211.928659][ T2465] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 211.928978][ T2465] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 211.929282][ T2465] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 211.929602][ T2465] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  211.929979][ T2465] RIP: 0033:0x7f99980a01e7
[ 211.930301][ T2465] 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)
[  211.931371][ T2465] RSP: 002b:00007ffe058f9b38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  211.931826][ T2465] RAX: ffffffffffffffda RBX: 00007ffe058fa270 RCX: 00007f99980a01e7
[  211.932274][ T2465] RDX: 0000000000000000 RSI: 00007ffe058f9ba0 RDI: 0000000000000005
[  211.932745][ T2465] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  211.933195][ T2465] R10: 000000003747b910 R11: 0000000000000246 R12: 0000000000000003
[  211.933649][ T2465] R13: 00000000686e7c42 R14: 0000000000499600 R15: 0000000000000000
| [  213.532144][ T2491] ------------[ cut here ]------------
| [ 213.532462][ T2491] WARNING: CPU: 1 PID: 2491 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) 
| [  213.533058][ T2491] Modules linked in: vxlan
| [  213.533963][ T2491] Tainted: [W]=WARN
[  213.534186][ T2491] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 213.534562][ T2491] 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) 
[ 213.534873][ T2491] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  213.535922][ T2491] RSP: 0018:ffffc90005346ef0 EFLAGS: 00010246
[  213.536312][ T2491] RAX: 0000000000000000 RBX: ffff888012782000 RCX: 0000000000000001
[  213.536757][ T2491] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  213.537194][ T2491] RBP: ffffc90005346fd8 R08: 0000000000000000 R09: 0000000000000000
[  213.537651][ T2491] R10: ffffc90005347008 R11: ffffffff91cceab8 R12: 1ffff92000a68de2
[  213.538091][ T2491] R13: 00000000000005aa R14: ffffc90005347008 R15: ffff888012782f48
[  213.538547][ T2491] FS:  00007fa1e6cd1800(0000) GS:ffff8880d2819000(0000) knlGS:0000000000000000
[  213.539058][ T2491] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  213.539435][ T2491] CR2: 00000000004e6890 CR3: 000000000a302004 CR4: 0000000000772ef0
[  213.539876][ T2491] PKRU: 55555554
[  213.540094][ T2491] Call Trace:
[  213.540328][ T2491]  <TASK>
[ 213.540482][ T2491] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 213.540787][ T2491] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 213.541080][ T2491] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 213.541452][ T2491] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 213.541750][ T2491] netif_set_mtu (net/core/dev.c:9652) 
[ 213.542042][ T2491] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 213.542350][ T2491] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 213.542725][ T2491] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 213.542951][ T2491] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 213.543247][ T2491] br_add_if (net/bridge/br_if.c:697) 
[ 213.543487][ T2491] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 213.543781][ T2491] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 213.544079][ T2491] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 213.544393][ T2491] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 213.544771][ T2491] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 213.545072][ T2491] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 213.545371][ T2491] ? __kernel_text_address (kernel/extable.c:79) 
[ 213.545667][ T2491] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 213.545964][ T2491] ? __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) 
[ 213.546261][ T2491] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 213.546642][ T2491] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 213.546939][ T2491] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 213.547247][ T2491] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 213.547572][ T2491] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 213.547868][ T2491] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 213.548162][ T2491] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 213.548466][ T2491] ? __create_object (mm/kmemleak.c:771) 
[ 213.548762][ T2491] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 213.549058][ T2491] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 213.549385][ T2491] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 213.549767][ T2491] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 213.550090][ T2491] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 213.550411][ T2491] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 213.550719][ T2491] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 213.551039][ T2491] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 213.551356][ T2491] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 213.551663][ T2491] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 213.551982][ T2491] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 213.552312][ T2491] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 213.552625][ T2491] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 213.552937][ T2491] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 213.553252][ T2491] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 213.553571][ T2491] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 213.553880][ T2491] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 213.554205][ T2491] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 213.554522][ T2491] ? 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) 
[ 213.554828][ T2491] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 213.555136][ T2491] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 213.555448][ T2491] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 213.555759][ T2491] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 213.556066][ T2491] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 213.556393][ T2491] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 213.556714][ T2491] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 213.557022][ T2491] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 213.557334][ T2491] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 213.557738][ T2491] ___sys_sendmsg (net/socket.c:2670) 
[ 213.558039][ T2491] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 213.558352][ T2491] ? __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) 
[ 213.558745][ T2491] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 213.559057][ T2491] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 213.559376][ T2491] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 213.559693][ T2491] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 213.560000][ T2491] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 213.560326][ T2491] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 213.560650][ T2491] __sys_sendmsg (net/socket.c:2700) 
[ 213.560955][ T2491] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 213.561351][ T2491] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 213.561674][ T2491] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 213.561983][ T2491] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 213.562309][ T2491] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  213.562694][ T2491] RIP: 0033:0x7fa1e6e9e1e7
[ 213.563013][ T2491] 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)
[  213.564122][ T2491] RSP: 002b:00007ffe7419ccb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  213.564605][ T2491] RAX: ffffffffffffffda RBX: 00007ffe7419d3f0 RCX: 00007fa1e6e9e1e7
[  213.565067][ T2491] RDX: 0000000000000000 RSI: 00007ffe7419cd20 RDI: 0000000000000005
[  213.565542][ T2491] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  213.566007][ T2491] R10: 000000002ec1f910 R11: 0000000000000246 R12: 0000000000000003
[  213.566474][ T2491] R13: 00000000686e7c43 R14: 0000000000499600 R15: 0000000000000000
| [  217.137226][ T2541] ------------[ cut here ]------------
| [ 217.137569][ T2541] WARNING: CPU: 2 PID: 2541 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) 
| [  217.138166][ T2541] Modules linked in: vxlan
| [  217.139131][ T2541] Tainted: [W]=WARN
[  217.139398][ T2541] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 217.139786][ T2541] 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) 
[ 217.140104][ T2541] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  217.141188][ T2541] RSP: 0018:ffffc900053e6ef0 EFLAGS: 00010246
[  217.141593][ T2541] RAX: 0000000000000000 RBX: ffff88801245a000 RCX: 0000000000000001
[  217.142055][ T2541] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  217.142531][ T2541] RBP: ffffc900053e6fd8 R08: 0000000000000000 R09: 0000000000000000
[  217.142991][ T2541] R10: ffffc900053e7008 R11: ffffffff9138d1e0 R12: 1ffff92000a7cde2
[  217.143465][ T2541] R13: 00000000000005dc R14: ffffc900053e7008 R15: ffff88801245af48
[  217.143919][ T2541] FS:  00007f5308724800(0000) GS:ffff8880d2899000(0000) knlGS:0000000000000000
[  217.144457][ T2541] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  217.144844][ T2541] CR2: 00000000004e6898 CR3: 000000000e538003 CR4: 0000000000772ef0
[  217.145312][ T2541] PKRU: 55555554
[  217.145545][ T2541] Call Trace:
[  217.145780][ T2541]  <TASK>
[ 217.145949][ T2541] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 217.146261][ T2541] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 217.146613][ T2541] netif_set_mtu (net/core/dev.c:9652) 
[ 217.146928][ T2541] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 217.147251][ T2541] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 217.147514][ T2541] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 217.147827][ T2541] br_add_if (net/bridge/br_if.c:697) 
[ 217.148077][ T2541] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 217.148402][ T2541] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 217.148716][ T2541] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 217.149027][ T2541] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 217.149425][ T2541] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 217.149736][ T2541] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 217.150041][ T2541] ? __kernel_text_address (kernel/extable.c:79) 
[ 217.150369][ T2541] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 217.150688][ T2541] ? __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) 
[ 217.150997][ T2541] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 217.151385][ T2541] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 217.151695][ T2541] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 217.152001][ T2541] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 217.152317][ T2541] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 217.152633][ T2541] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 217.152947][ T2541] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 217.153250][ T2541] ? __create_object (mm/kmemleak.c:771) 
[ 217.153569][ T2541] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 217.153876][ T2541] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 217.154185][ T2541] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 217.154582][ T2541] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 217.154898][ T2541] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 217.155208][ T2541] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 217.155534][ T2541] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 217.155852][ T2541] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 217.156164][ T2541] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 217.156479][ T2541] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 217.156792][ T2541] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 217.157097][ T2541] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 217.157430][ T2541] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 217.157763][ T2541] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 217.158082][ T2541] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 217.158412][ T2541] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 217.158725][ T2541] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 217.159045][ T2541] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 217.159364][ T2541] ? 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) 
[ 217.159672][ T2541] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 217.159988][ T2541] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 217.160304][ T2541] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 217.160619][ T2541] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 217.160929][ T2541] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 217.161241][ T2541] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 217.161568][ T2541] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 217.161885][ T2541] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 217.162190][ T2541] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 217.162611][ T2541] ___sys_sendmsg (net/socket.c:2670) 
[ 217.162923][ T2541] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 217.163228][ T2541] ? __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) 
[ 217.163616][ T2541] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 217.163930][ T2541] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 217.164241][ T2541] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 217.164565][ T2541] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 217.164879][ T2541] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 217.165194][ T2541] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 217.165517][ T2541] __sys_sendmsg (net/socket.c:2700) 
[ 217.165825][ T2541] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 217.166202][ T2541] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 217.166548][ T2541] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 217.166860][ T2541] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 217.167178][ T2541] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  217.167577][ T2541] RIP: 0033:0x7f53088f11e7
[ 217.167895][ T2541] 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)
[  217.168966][ T2541] RSP: 002b:00007fff18a6c558 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  217.169436][ T2541] RAX: ffffffffffffffda RBX: 00007fff18a6cc90 RCX: 00007f53088f11e7
[  217.169887][ T2541] RDX: 0000000000000000 RSI: 00007fff18a6c5c0 RDI: 0000000000000005
[  217.170359][ T2541] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  217.170814][ T2541] R10: 00000000085b2910 R11: 0000000000000246 R12: 0000000000000003
[  217.171275][ T2541] R13: 00000000686e7c47 R14: 0000000000499600 R15: 0000000000000000
| [  218.686749][ T2567] ------------[ cut here ]------------
| [ 218.687053][ T2567] WARNING: CPU: 0 PID: 2567 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) 
| [  218.687661][ T2567] Modules linked in: vxlan
| [  218.688569][ T2567] Tainted: [W]=WARN
[  218.688793][ T2567] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 218.689169][ T2567] 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) 
[ 218.689481][ T2567] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  218.690538][ T2567] RSP: 0018:ffffc90005516ef0 EFLAGS: 00010246
[  218.690917][ T2567] RAX: 0000000000000000 RBX: ffff88801245a000 RCX: 0000000000000001
[  218.691374][ T2567] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  218.691812][ T2567] RBP: ffffc90005516fd8 R08: 0000000000000000 R09: 0000000000000000
[  218.692257][ T2567] R10: ffffc90005517008 R11: ffffffff9138d1e0 R12: 1ffff92000aa2de2
[  218.692708][ T2567] R13: 0000000000000596 R14: ffffc90005517008 R15: ffff88801245af48
[  218.693147][ T2567] FS:  00007f8785bd8800(0000) GS:ffff8880d2799000(0000) knlGS:0000000000000000
[  218.693665][ T2567] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  218.694034][ T2567] CR2: 00000000004e6898 CR3: 000000001160c002 CR4: 0000000000772ef0
[  218.694502][ T2567] PKRU: 55555554
[  218.694727][ T2567] Call Trace:
[  218.694946][ T2567]  <TASK>
[ 218.695099][ T2567] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 218.695413][ T2567] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 218.695722][ T2567] netif_set_mtu (net/core/dev.c:9652) 
[ 218.696016][ T2567] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 218.696366][ T2567] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 218.696594][ T2567] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 218.696900][ T2567] br_add_if (net/bridge/br_if.c:697) 
[ 218.697143][ T2567] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 218.697461][ T2567] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 218.697758][ T2567] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 218.698061][ T2567] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 218.698444][ T2567] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 218.698740][ T2567] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 218.699035][ T2567] ? __kernel_text_address (kernel/extable.c:79) 
[ 218.699356][ T2567] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 218.699660][ T2567] ? __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) 
[ 218.699956][ T2567] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 218.700333][ T2567] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 218.700642][ T2567] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 218.700937][ T2567] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 218.701233][ T2567] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 218.701545][ T2567] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 218.701842][ T2567] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 218.702132][ T2567] ? __create_object (mm/kmemleak.c:771) 
[ 218.702440][ T2567] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 218.702737][ T2567] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 218.703038][ T2567] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 218.703423][ T2567] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 218.703731][ T2567] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 218.704030][ T2567] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 218.704332][ T2567] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 218.704631][ T2567] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 218.704925][ T2567] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 218.705217][ T2567] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 218.705519][ T2567] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 218.705810][ T2567] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 218.706126][ T2567] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 218.706434][ T2567] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 218.706733][ T2567] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 218.707026][ T2567] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 218.707339][ T2567] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 218.707657][ T2567] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 218.707948][ T2567] ? 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) 
[ 218.708250][ T2567] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 218.708552][ T2567] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 218.708845][ T2567] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 218.709147][ T2567] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 218.709453][ T2567] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 218.709748][ T2567] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 218.710053][ T2567] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 218.710360][ T2567] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 218.710656][ T2567] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 218.711031][ T2567] ___sys_sendmsg (net/socket.c:2670) 
[ 218.711341][ T2567] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 218.711644][ T2567] ? __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) 
[ 218.712010][ T2567] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 218.712336][ T2567] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 218.712641][ T2567] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 218.712940][ T2567] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 218.713239][ T2567] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 218.713540][ T2567] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 218.713843][ T2567] __sys_sendmsg (net/socket.c:2700) 
[ 218.714146][ T2567] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 218.714522][ T2567] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 218.714828][ T2567] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 218.715129][ T2567] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 218.715443][ T2567] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  218.715815][ T2567] RIP: 0033:0x7f8785da51e7
[ 218.716137][ T2567] 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)
[  218.717204][ T2567] RSP: 002b:00007fffe1caf468 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  218.717668][ T2567] RAX: ffffffffffffffda RBX: 00007fffe1cafba0 RCX: 00007f8785da51e7
[  218.718109][ T2567] RDX: 0000000000000000 RSI: 00007fffe1caf4d0 RDI: 0000000000000005
[  218.718554][ T2567] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  218.718996][ T2567] R10: 0000000025226910 R11: 0000000000000246 R12: 0000000000000003
[  218.719460][ T2567] R13: 00000000686e7c49 R14: 0000000000499600 R15: 0000000000000000
| [  222.267623][ T2618] ------------[ cut here ]------------
| [ 222.267926][ T2618] WARNING: CPU: 0 PID: 2618 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) 
| [  222.268534][ T2618] Modules linked in: vxlan
| [  222.269460][ T2618] Tainted: [W]=WARN
[  222.269685][ T2618] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 222.270064][ T2618] 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) 
[ 222.270376][ T2618] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  222.271590][ T2618] RSP: 0018:ffffc90005626ef0 EFLAGS: 00010246
[  222.271973][ T2618] RAX: 0000000000000000 RBX: ffff88800535a000 RCX: 0000000000000001
[  222.272570][ T2618] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  222.273020][ T2618] RBP: ffffc90005626fd8 R08: 0000000000000000 R09: 0000000000000000
[  222.273609][ T2618] R10: ffffc90005627008 R11: ffffffff9138d1e0 R12: 1ffff92000ac4de2
[  222.274054][ T2618] R13: 00000000000005dc R14: ffffc90005627008 R15: ffff88800535af48
[  222.274641][ T2618] FS:  00007fa229fd5800(0000) GS:ffff8880d2799000(0000) knlGS:0000000000000000
[  222.275164][ T2618] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  222.275549][ T2618] CR2: 00000000004e68a0 CR3: 0000000011439003 CR4: 0000000000772ef0
[  222.276012][ T2618] PKRU: 55555554
[  222.276233][ T2618] Call Trace:
[  222.276463][ T2618]  <TASK>
[ 222.276616][ T2618] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 222.276909][ T2618] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 222.277225][ T2618] netif_set_mtu (net/core/dev.c:9652) 
[ 222.277542][ T2618] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 222.277855][ T2618] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 222.278089][ T2618] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 222.278395][ T2618] br_add_if (net/bridge/br_if.c:697) 
[ 222.278627][ T2618] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 222.278921][ T2618] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 222.279235][ T2618] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 222.279575][ T2618] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 222.279969][ T2618] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 222.280299][ T2618] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 222.280617][ T2618] ? __kernel_text_address (kernel/extable.c:79) 
[ 222.280942][ T2618] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 222.281247][ T2618] ? __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) 
[ 222.281556][ T2618] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 222.281922][ T2618] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 222.282222][ T2618] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 222.282529][ T2618] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 222.282825][ T2618] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 222.283134][ T2618] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 222.283444][ T2618] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 222.283738][ T2618] ? __create_object (mm/kmemleak.c:771) 
[ 222.284042][ T2618] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 222.284350][ T2618] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 222.284648][ T2618] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 222.285018][ T2618] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 222.285330][ T2618] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 222.285634][ T2618] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 222.285935][ T2618] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 222.286238][ T2618] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 222.286555][ T2618] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 222.286850][ T2618] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 222.287149][ T2618] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 222.287471][ T2618] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 222.287766][ T2618] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 222.288070][ T2618] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 222.288380][ T2618] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 222.288678][ T2618] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 222.288978][ T2618] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 222.289298][ T2618] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 222.289599][ T2618] ? 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) 
[ 222.289897][ T2618] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 222.290198][ T2618] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 222.290499][ T2618] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 222.290799][ T2618] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 222.291096][ T2618] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 222.291400][ T2618] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 222.291711][ T2618] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 222.292009][ T2618] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 222.292315][ T2618] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 222.292697][ T2618] ___sys_sendmsg (net/socket.c:2670) 
[ 222.293017][ T2618] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 222.293323][ T2618] ? __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) 
[ 222.293689][ T2618] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 222.293991][ T2618] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 222.294310][ T2618] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 222.294613][ T2618] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 222.294907][ T2618] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 222.295202][ T2618] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 222.295515][ T2618] __sys_sendmsg (net/socket.c:2700) 
[ 222.295808][ T2618] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 222.296184][ T2618] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 222.296503][ T2618] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 222.296811][ T2618] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 222.297117][ T2618] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  222.297501][ T2618] RIP: 0033:0x7fa22a1a21e7
[ 222.297808][ T2618] 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)
[  222.298880][ T2618] RSP: 002b:00007fff794cba58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  222.299338][ T2618] RAX: ffffffffffffffda RBX: 00007fff794cc190 RCX: 00007fa22a1a21e7
[  222.299777][ T2618] RDX: 0000000000000000 RSI: 00007fff794cbac0 RDI: 0000000000000005
[  222.300218][ T2618] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  222.300676][ T2618] R10: 0000000030744910 R11: 0000000000000246 R12: 0000000000000003
[  222.301119][ T2618] R13: 00000000686e7c4c R14: 0000000000499600 R15: 0000000000000000
| [  223.814334][ T2644] ------------[ cut here ]------------
| [ 223.814635][ T2644] WARNING: CPU: 3 PID: 2644 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) 
| [  223.815225][ T2644] Modules linked in: vxlan
| [  223.816135][ T2644] Tainted: [W]=WARN
[  223.816368][ T2644] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 223.816744][ T2644] 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) 
[ 223.817047][ T2644] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  223.818113][ T2644] RSP: 0018:ffffc90005746ef0 EFLAGS: 00010246
[  223.818495][ T2644] RAX: 0000000000000000 RBX: ffff88800535a000 RCX: 0000000000000001
[  223.818942][ T2644] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  223.819394][ T2644] RBP: ffffc90005746fd8 R08: 0000000000000000 R09: 0000000000000000
[  223.819834][ T2644] R10: ffffc90005747008 R11: ffffffff9138d1e0 R12: 1ffff92000ae8de2
[  223.820270][ T2644] R13: 00000000000005aa R14: ffffc90005747008 R15: ffff88800535af48
[  223.820723][ T2644] FS:  00007f3ee8dee800(0000) GS:ffff8880d2919000(0000) knlGS:0000000000000000
[  223.821240][ T2644] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  223.821641][ T2644] CR2: 00000000004e68a0 CR3: 0000000009fa9005 CR4: 0000000000772ef0
[  223.822085][ T2644] PKRU: 55555554
[  223.822315][ T2644] Call Trace:
[  223.822536][ T2644]  <TASK>
[ 223.822692][ T2644] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 223.822986][ T2644] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 223.823305][ T2644] netif_set_mtu (net/core/dev.c:9652) 
[ 223.823600][ T2644] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 223.823906][ T2644] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 223.824130][ T2644] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 223.824450][ T2644] br_add_if (net/bridge/br_if.c:697) 
[ 223.824684][ T2644] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 223.824984][ T2644] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 223.825281][ T2644] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 223.825593][ T2644] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 223.825965][ T2644] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 223.826257][ T2644] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 223.826558][ T2644] ? __kernel_text_address (kernel/extable.c:79) 
[ 223.826854][ T2644] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 223.827154][ T2644] ? __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) 
[ 223.827466][ T2644] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 223.827831][ T2644] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 223.828129][ T2644] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 223.828430][ T2644] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 223.828723][ T2644] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 223.829019][ T2644] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 223.829322][ T2644] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 223.829615][ T2644] ? __create_object (mm/kmemleak.c:771) 
[ 223.829909][ T2644] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 223.830203][ T2644] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 223.830507][ T2644] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 223.830871][ T2644] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 223.831171][ T2644] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 223.831481][ T2644] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 223.831777][ T2644] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 223.832079][ T2644] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 223.832381][ T2644] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 223.832672][ T2644] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 223.832968][ T2644] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 223.833260][ T2644] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 223.833564][ T2644] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 223.833865][ T2644] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 223.834163][ T2644] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 223.834464][ T2644] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 223.834759][ T2644] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 223.835067][ T2644] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 223.835366][ T2644] ? 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) 
[ 223.835661][ T2644] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 223.835962][ T2644] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 223.836252][ T2644] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 223.836557][ T2644] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 223.836857][ T2644] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 223.837152][ T2644] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 223.837474][ T2644] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 223.837773][ T2644] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 223.838064][ T2644] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 223.838450][ T2644] ___sys_sendmsg (net/socket.c:2670) 
[ 223.838747][ T2644] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 223.839038][ T2644] ? __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) 
[ 223.839412][ T2644] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 223.839711][ T2644] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 223.840006][ T2644] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 223.840314][ T2644] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 223.840613][ T2644] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 223.840904][ T2644] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 223.841205][ T2644] __sys_sendmsg (net/socket.c:2700) 
[ 223.841507][ T2644] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 223.841871][ T2644] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 223.842179][ T2644] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 223.842481][ T2644] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 223.842780][ T2644] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  223.843199][ T2644] RIP: 0033:0x7f3ee8fbb1e7
[ 223.843526][ T2644] 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)
[  223.844632][ T2644] RSP: 002b:00007ffc5a367828 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  223.845102][ T2644] RAX: ffffffffffffffda RBX: 00007ffc5a367f60 RCX: 00007f3ee8fbb1e7
[  223.845568][ T2644] RDX: 0000000000000000 RSI: 00007ffc5a367890 RDI: 0000000000000005
[  223.846030][ T2644] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  223.846497][ T2644] R10: 000000002d5aa910 R11: 0000000000000246 R12: 0000000000000003
[  223.846959][ T2644] R13: 00000000686e7c4e R14: 0000000000499600 R15: 0000000000000000
| [  225.621588][ T2670] ------------[ cut here ]------------
| [ 225.621904][ T2670] WARNING: CPU: 1 PID: 2670 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) 
| [  225.622528][ T2670] Modules linked in: vxlan
| [  225.623491][ T2670] Tainted: [W]=WARN
[  225.623726][ T2670] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 225.624113][ T2670] 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) 
[ 225.624437][ T2670] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  225.625556][ T2670] RSP: 0018:ffffc90005816ef0 EFLAGS: 00010246
[  225.625950][ T2670] RAX: 0000000000000000 RBX: ffff88800535a000 RCX: 0000000000000001
[  225.627568][ T2670] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  225.628044][ T2670] RBP: ffffc90005816fd8 R08: 0000000000000000 R09: 0000000000000000
[  225.628519][ T2670] R10: ffffc90005817008 R11: ffffffff91cceab8 R12: 1ffff92000b02de2
[  225.628978][ T2670] R13: 0000000000000596 R14: ffffc90005817008 R15: ffff88800535af48
[  225.629452][ T2670] FS:  00007f4c24246800(0000) GS:ffff8880d2819000(0000) knlGS:0000000000000000
[  225.629998][ T2670] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  225.630410][ T2670] CR2: 00000000004e68a0 CR3: 0000000012638006 CR4: 0000000000772ef0
[  225.630883][ T2670] PKRU: 55555554
[  225.631113][ T2670] Call Trace:
[  225.631351][ T2670]  <TASK>
[ 225.631512][ T2670] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 225.631830][ T2670] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 225.632142][ T2670] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 225.632533][ T2670] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 225.632852][ T2670] netif_set_mtu (net/core/dev.c:9652) 
[ 225.633162][ T2670] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 225.633497][ T2670] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 225.633888][ T2670] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 225.634124][ T2670] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 225.634451][ T2670] br_add_if (net/bridge/br_if.c:697) 
[ 225.634697][ T2670] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 225.635006][ T2670] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 225.635330][ T2670] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 225.635647][ T2670] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 225.636040][ T2670] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 225.636359][ T2670] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 225.636665][ T2670] ? __kernel_text_address (kernel/extable.c:79) 
[ 225.636978][ T2670] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 225.637313][ T2670] ? __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) 
[ 225.637637][ T2670] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 225.638021][ T2670] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 225.638341][ T2670] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 225.638650][ T2670] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 225.638958][ T2670] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 225.639271][ T2670] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 225.639587][ T2670] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 225.639913][ T2670] ? __create_object (mm/kmemleak.c:771) 
[ 225.640225][ T2670] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 225.640543][ T2670] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 225.640853][ T2670] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 225.641231][ T2670] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 225.641561][ T2670] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 225.641873][ T2670] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 225.642192][ T2670] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 225.642519][ T2670] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 225.642831][ T2670] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 225.643138][ T2670] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 225.643461][ T2670] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 225.643772][ T2670] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 225.644085][ T2670] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 225.644407][ T2670] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 225.644737][ T2670] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 225.645046][ T2670] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 225.645367][ T2670] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 225.645690][ T2670] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 225.646002][ T2670] ? 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) 
[ 225.646321][ T2670] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 225.646635][ T2670] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 225.646955][ T2670] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 225.647269][ T2670] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 225.647598][ T2670] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 225.647910][ T2670] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 225.648227][ T2670] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 225.648547][ T2670] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 225.648855][ T2670] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 225.649270][ T2670] ___sys_sendmsg (net/socket.c:2670) 
[ 225.649596][ T2670] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 225.649904][ T2670] ? __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) 
[ 225.650298][ T2670] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 225.650615][ T2670] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 225.650928][ T2670] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 225.651257][ T2670] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 225.651585][ T2670] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 225.651897][ T2670] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 225.652227][ T2670] __sys_sendmsg (net/socket.c:2700) 
[ 225.652540][ T2670] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 225.652922][ T2670] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 225.653243][ T2670] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 225.653569][ T2670] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 225.653883][ T2670] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  225.654295][ T2670] RIP: 0033:0x7f4c244131e7
[ 225.654609][ T2670] 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)
[  225.655714][ T2670] RSP: 002b:00007fff35675078 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  225.656187][ T2670] RAX: ffffffffffffffda RBX: 00007fff356757b0 RCX: 00007f4c244131e7
[  225.656667][ T2670] RDX: 0000000000000000 RSI: 00007fff356750e0 RDI: 0000000000000005
[  225.657126][ T2670] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  225.657612][ T2670] R10: 000000001c7c9910 R11: 0000000000000246 R12: 0000000000000003
[  225.658082][ T2670] R13: 00000000686e7c4f R14: 0000000000499600 R15: 0000000000000000
| [  227.488975][ T2696] ------------[ cut here ]------------
| [ 227.489271][ T2696] WARNING: CPU: 0 PID: 2696 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) 
| [  227.489872][ T2696] Modules linked in: vxlan
| [  227.490795][ T2696] Tainted: [W]=WARN
[  227.491023][ T2696] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 227.491407][ T2696] 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) 
[ 227.491720][ T2696] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  227.492788][ T2696] RSP: 0018:ffffc90005896ef0 EFLAGS: 00010246
[  227.493186][ T2696] RAX: 0000000000000000 RBX: ffff88800535a000 RCX: 0000000000000001
[  227.493641][ T2696] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  227.494089][ T2696] RBP: ffffc90005896fd8 R08: 0000000000000000 R09: 0000000000000000
[  227.494535][ T2696] R10: ffffc90005897008 R11: ffffffff91cceab8 R12: 1ffff92000b12de2
[  227.494981][ T2696] R13: 0000000000000596 R14: ffffc90005897008 R15: ffff88800535af48
[  227.495440][ T2696] FS:  00007f6d82b2f800(0000) GS:ffff8880d2799000(0000) knlGS:0000000000000000
[  227.495971][ T2696] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  227.496601][ T2696] CR2: 00000000004e68a0 CR3: 0000000012867001 CR4: 0000000000772ef0
[  227.497059][ T2696] PKRU: 55555554
[  227.497534][ T2696] Call Trace:
[  227.497759][ T2696]  <TASK>
[ 227.497912][ T2696] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 227.498210][ T2696] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 227.498645][ T2696] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 227.499018][ T2696] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 227.499339][ T2696] netif_set_mtu (net/core/dev.c:9652) 
[ 227.499635][ T2696] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 227.499945][ T2696] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 227.500355][ T2696] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 227.500587][ T2696] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 227.500884][ T2696] br_add_if (net/bridge/br_if.c:697) 
[ 227.501118][ T2696] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 227.501421][ T2696] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 227.501725][ T2696] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 227.502031][ T2696] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 227.502411][ T2696] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 227.502707][ T2696] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 227.502998][ T2696] ? __kernel_text_address (kernel/extable.c:79) 
[ 227.503323][ T2696] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 227.503621][ T2696] ? __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) 
[ 227.503914][ T2696] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 227.504309][ T2696] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 227.504613][ T2696] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 227.504912][ T2696] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 227.505205][ T2696] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 227.505528][ T2696] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 227.505830][ T2696] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 227.506125][ T2696] ? __create_object (mm/kmemleak.c:771) 
[ 227.506436][ T2696] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 227.506730][ T2696] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 227.507025][ T2696] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 227.507402][ T2696] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 227.507708][ T2696] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 227.508008][ T2696] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 227.508321][ T2696] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 227.508621][ T2696] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 227.508923][ T2696] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 227.509213][ T2696] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 227.509518][ T2696] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 227.509812][ T2696] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 227.510110][ T2696] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 227.510417][ T2696] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 227.510734][ T2696] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 227.511036][ T2696] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 227.511350][ T2696] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 227.511664][ T2696] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 227.511961][ T2696] ? 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) 
[ 227.512257][ T2696] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 227.512571][ T2696] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 227.512867][ T2696] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 227.513175][ T2696] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 227.513484][ T2696] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 227.513777][ T2696] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 227.514081][ T2696] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 227.514383][ T2696] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 227.514682][ T2696] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 227.515075][ T2696] ___sys_sendmsg (net/socket.c:2670) 
[ 227.515379][ T2696] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 227.515679][ T2696] ? __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) 
[ 227.516048][ T2696] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 227.516361][ T2696] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 227.516660][ T2696] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 227.516959][ T2696] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 227.517257][ T2696] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 227.517571][ T2696] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 227.517881][ T2696] __sys_sendmsg (net/socket.c:2700) 
[ 227.518174][ T2696] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 227.518549][ T2696] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 227.518854][ T2696] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 227.519153][ T2696] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 227.519457][ T2696] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  227.519821][ T2696] RIP: 0033:0x7f6d82cfc1e7
[ 227.520129][ T2696] 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)
[  227.521204][ T2696] RSP: 002b:00007ffc10d8dca8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  227.521659][ T2696] RAX: ffffffffffffffda RBX: 00007ffc10d8e3e0 RCX: 00007f6d82cfc1e7
[  227.522106][ T2696] RDX: 0000000000000000 RSI: 00007ffc10d8dd10 RDI: 0000000000000005
[  227.522555][ T2696] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  227.522992][ T2696] R10: 0000000018777910 R11: 0000000000000246 R12: 0000000000000003
[  227.523444][ T2696] R13: 00000000686e7c51 R14: 0000000000499600 R15: 0000000000000000
| [  229.249967][ T2717] ------------[ cut here ]------------
| [ 229.250306][ T2717] WARNING: CPU: 1 PID: 2717 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) 
| [  229.250893][ T2717] Modules linked in: vxlan
| [  229.251814][ T2717] Tainted: [W]=WARN
[  229.252039][ T2717] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 229.252438][ T2717] 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) 
[ 229.252745][ T2717] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  229.253823][ T2717] RSP: 0018:ffffc900055b6ef0 EFLAGS: 00010246
[  229.254221][ T2717] RAX: 0000000000000000 RBX: ffff88800cc7a000 RCX: 0000000000000001
[  229.254841][ T2717] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  229.255442][ T2717] RBP: ffffc900055b6fd8 R08: 0000000000000000 R09: 0000000000000000
[  229.255884][ T2717] R10: ffffc900055b7008 R11: ffffffff9138d1e0 R12: 1ffff92000ab6de2
[  229.256483][ T2717] R13: 00000000000005dc R14: ffffc900055b7008 R15: ffff88800cc7af48
[  229.256921][ T2717] FS:  00007fc99617a800(0000) GS:ffff8880d2819000(0000) knlGS:0000000000000000
[  229.257617][ T2717] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  229.257987][ T2717] CR2: 00000000004e6890 CR3: 00000000126e0002 CR4: 0000000000772ef0
[  229.258731][ T2717] PKRU: 55555554
[  229.258959][ T2717] Call Trace:
[  229.259231][ T2717]  <TASK>
[ 229.259764][ T2717] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 229.260064][ T2717] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 229.260390][ T2717] netif_set_mtu (net/core/dev.c:9652) 
[ 229.260686][ T2717] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 229.260995][ T2717] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 229.261225][ T2717] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 229.261542][ T2717] br_add_if (net/bridge/br_if.c:697) 
[ 229.261785][ T2717] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 229.262077][ T2717] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 229.262396][ T2717] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 229.262702][ T2717] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 229.263071][ T2717] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 229.263385][ T2717] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 229.263680][ T2717] ? __kernel_text_address (kernel/extable.c:79) 
[ 229.263978][ T2717] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 229.264378][ T2717] ? __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) 
[ 229.264708][ T2717] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 229.265076][ T2717] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 229.265408][ T2717] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 229.265713][ T2717] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 229.266006][ T2717] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 229.266334][ T2717] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 229.266638][ T2717] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 229.266931][ T2717] ? __create_object (mm/kmemleak.c:771) 
[ 229.267234][ T2717] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 229.267548][ T2717] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 229.267845][ T2717] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 229.268219][ T2717] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 229.268546][ T2717] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 229.269075][ T2717] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 229.269601][ T2717] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 229.270115][ T2717] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 229.270652][ T2717] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 229.271182][ T2717] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 229.271743][ T2717] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 229.272275][ T2717] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 229.272837][ T2717] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 229.273403][ T2717] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 229.273951][ T2717] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 229.274491][ T2717] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 229.275028][ T2717] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 229.275599][ T2717] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 229.276121][ T2717] ? 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) 
[ 229.276680][ T2717] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 229.277219][ T2717] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 229.277745][ T2717] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 229.278200][ T2717] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 229.278595][ T2717] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 229.278893][ T2717] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 229.279214][ T2717] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 229.279524][ T2717] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 229.279825][ T2717] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 229.280216][ T2717] ___sys_sendmsg (net/socket.c:2670) 
[ 229.280518][ T2717] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 229.280811][ T2717] ? __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) 
[ 229.281192][ T2717] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 229.281510][ T2717] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 229.281816][ T2717] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 229.282125][ T2717] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 229.282436][ T2717] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 229.282772][ T2717] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 229.283319][ T2717] __sys_sendmsg (net/socket.c:2700) 
[ 229.283857][ T2717] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 229.284532][ T2717] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 229.285096][ T2717] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 229.285669][ T2717] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 229.286168][ T2717] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  229.286845][ T2717] RIP: 0033:0x7fc9963471e7
[ 229.287413][ T2717] 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)
[  229.288812][ T2717] RSP: 002b:00007fff3e14fb98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  229.289274][ T2717] RAX: ffffffffffffffda RBX: 00007fff3e1502d0 RCX: 00007fc9963471e7
[  229.289746][ T2717] RDX: 0000000000000000 RSI: 00007fff3e14fc00 RDI: 0000000000000005
[  229.290199][ T2717] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  229.290658][ T2717] R10: 000000000d0cd910 R11: 0000000000000246 R12: 0000000000000003
[  229.291100][ T2717] R13: 00000000686e7c53 R14: 0000000000499600 R15: 0000000000000000
| [  230.832034][ T2746] ------------[ cut here ]------------
| [ 230.832335][ T2746] WARNING: CPU: 0 PID: 2746 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) 
| [  230.832919][ T2746] Modules linked in: vxlan
| [  230.833852][ T2746] Tainted: [W]=WARN
[  230.834079][ T2746] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 230.834463][ T2746] 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) 
[ 230.834780][ T2746] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  230.835846][ T2746] RSP: 0018:ffffc90005a06ef0 EFLAGS: 00010246
[  230.836222][ T2746] RAX: 0000000000000000 RBX: ffff88800cc7a000 RCX: 0000000000000001
[  230.836673][ T2746] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  230.837116][ T2746] RBP: ffffc90005a06fd8 R08: 0000000000000000 R09: 0000000000000000
[  230.837575][ T2746] R10: ffffc90005a07008 R11: ffffffff91cceab8 R12: 1ffff92000b40de2
[  230.838028][ T2746] R13: 00000000000005aa R14: ffffc90005a07008 R15: ffff88800cc7af48
[  230.838484][ T2746] FS:  00007f6466e64800(0000) GS:ffff8880d2799000(0000) knlGS:0000000000000000
[  230.839005][ T2746] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  230.839386][ T2746] CR2: 00000000004e6890 CR3: 000000000ff97005 CR4: 0000000000772ef0
[  230.839833][ T2746] PKRU: 55555554
[  230.840055][ T2746] Call Trace:
[  230.840295][ T2746]  <TASK>
[ 230.840450][ T2746] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 230.840751][ T2746] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 230.841066][ T2746] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 230.841447][ T2746] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 230.841749][ T2746] netif_set_mtu (net/core/dev.c:9652) 
[ 230.842043][ T2746] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 230.842359][ T2746] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 230.842742][ T2746] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 230.842968][ T2746] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 230.843268][ T2746] br_add_if (net/bridge/br_if.c:697) 
[ 230.843511][ T2746] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 230.843807][ T2746] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 230.844104][ T2746] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 230.844413][ T2746] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 230.844795][ T2746] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 230.845093][ T2746] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 230.845412][ T2746] ? __kernel_text_address (kernel/extable.c:79) 
[ 230.845709][ T2746] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 230.846010][ T2746] ? __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) 
[ 230.846318][ T2746] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 230.846685][ T2746] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 230.846991][ T2746] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 230.847293][ T2746] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 230.847608][ T2746] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 230.847902][ T2746] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 230.848196][ T2746] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 230.848496][ T2746] ? __create_object (mm/kmemleak.c:771) 
[ 230.848793][ T2746] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 230.849090][ T2746] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 230.849402][ T2746] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 230.849765][ T2746] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 230.850069][ T2746] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 230.850377][ T2746] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 230.850687][ T2746] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 230.850996][ T2746] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 230.851308][ T2746] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 230.851602][ T2746] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 230.851905][ T2746] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 230.852200][ T2746] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 230.852504][ T2746] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 230.852804][ T2746] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 230.853101][ T2746] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 230.853406][ T2746] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 230.853701][ T2746] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 230.854013][ T2746] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 230.854317][ T2746] ? 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) 
[ 230.854629][ T2746] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 230.854926][ T2746] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 230.855219][ T2746] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 230.855527][ T2746] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 230.855824][ T2746] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 230.856126][ T2746] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 230.856438][ T2746] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 230.856735][ T2746] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 230.857025][ T2746] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 230.857419][ T2746] ___sys_sendmsg (net/socket.c:2670) 
[ 230.857713][ T2746] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 230.858005][ T2746] ? __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) 
[ 230.858399][ T2746] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 230.858699][ T2746] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 230.858996][ T2746] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 230.859314][ T2746] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 230.859608][ T2746] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 230.859904][ T2746] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 230.860204][ T2746] __sys_sendmsg (net/socket.c:2700) 
[ 230.860504][ T2746] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 230.860873][ T2746] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 230.861201][ T2746] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 230.861512][ T2746] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 230.861810][ T2746] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  230.862176][ T2746] RIP: 0033:0x7f64670311e7
[ 230.862492][ T2746] 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)
[  230.863561][ T2746] RSP: 002b:00007ffc27b61128 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  230.864006][ T2746] RAX: ffffffffffffffda RBX: 00007ffc27b61860 RCX: 00007f64670311e7
[  230.864456][ T2746] RDX: 0000000000000000 RSI: 00007ffc27b61190 RDI: 0000000000000005
[  230.864905][ T2746] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  230.865356][ T2746] R10: 0000000038a3f910 R11: 0000000000000246 R12: 0000000000000003
[  230.865794][ T2746] R13: 00000000686e7c55 R14: 0000000000499600 R15: 0000000000000000
| [  234.424281][ T2796] ------------[ cut here ]------------
| [ 234.424623][ T2796] WARNING: CPU: 2 PID: 2796 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) 
| [  234.425217][ T2796] Modules linked in: vxlan
| [  234.426159][ T2796] Tainted: [W]=WARN
[  234.426749][ T2796] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 234.427135][ T2796] 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) 
[ 234.427493][ T2796] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  234.428603][ T2796] RSP: 0018:ffffc90005aa6ef0 EFLAGS: 00010246
[  234.428996][ T2796] RAX: 0000000000000000 RBX: ffff8880132c2000 RCX: 0000000000000001
[  234.429461][ T2796] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  234.429915][ T2796] RBP: ffffc90005aa6fd8 R08: 0000000000000000 R09: 0000000000000000
[  234.430436][ T2796] R10: ffffc90005aa7008 R11: ffffffff9138d1e0 R12: 1ffff92000b54de2
[  234.430896][ T2796] R13: 00000000000005dc R14: ffffc90005aa7008 R15: ffff8880132c2f48
[  234.431363][ T2796] FS:  00007f1583100800(0000) GS:ffff8880d2899000(0000) knlGS:0000000000000000
[  234.431895][ T2796] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  234.432317][ T2796] CR2: 00000000004e6898 CR3: 00000000133a6004 CR4: 0000000000772ef0
[  234.432780][ T2796] PKRU: 55555554
[  234.433017][ T2796] Call Trace:
[  234.433252][ T2796]  <TASK>
[ 234.433428][ T2796] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 234.433739][ T2796] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 234.434060][ T2796] netif_set_mtu (net/core/dev.c:9652) 
[ 234.434386][ T2796] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 234.434710][ T2796] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 234.434957][ T2796] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 234.435270][ T2796] br_add_if (net/bridge/br_if.c:697) 
[ 234.435527][ T2796] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 234.435832][ T2796] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 234.436175][ T2796] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 234.436508][ T2796] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 234.436896][ T2796] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 234.437243][ T2796] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 234.437569][ T2796] ? __kernel_text_address (kernel/extable.c:79) 
[ 234.437893][ T2796] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 234.438202][ T2796] ? __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) 
[ 234.438520][ T2796] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 234.438896][ T2796] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 234.439206][ T2796] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 234.439526][ T2796] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 234.439839][ T2796] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 234.440147][ T2796] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 234.440468][ T2796] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 234.440772][ T2796] ? __create_object (mm/kmemleak.c:771) 
[ 234.441114][ T2796] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 234.441437][ T2796] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 234.441749][ T2796] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 234.442134][ T2796] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 234.442460][ T2796] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 234.442774][ T2796] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 234.443082][ T2796] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 234.443404][ T2796] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 234.443750][ T2796] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 234.444067][ T2796] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 234.444407][ T2796] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 234.444721][ T2796] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 234.445049][ T2796] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 234.445393][ T2796] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 234.445711][ T2796] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 234.446020][ T2796] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 234.446347][ T2796] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 234.446665][ T2796] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 234.446977][ T2796] ? 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) 
[ 234.447298][ T2796] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 234.447620][ T2796] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 234.447926][ T2796] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 234.448237][ T2796] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 234.448559][ T2796] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 234.448867][ T2796] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 234.449272][ T2796] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 234.449602][ T2796] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 234.449912][ T2796] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 234.450311][ T2796] ___sys_sendmsg (net/socket.c:2670) 
[ 234.450627][ T2796] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 234.450931][ T2796] ? __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) 
[ 234.451322][ T2796] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 234.451637][ T2796] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 234.451950][ T2796] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 234.452264][ T2796] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 234.452582][ T2796] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 234.452893][ T2796] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 234.453244][ T2796] __sys_sendmsg (net/socket.c:2700) 
[ 234.453566][ T2796] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 234.453950][ T2796] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 234.454273][ T2796] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 234.454594][ T2796] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 234.454905][ T2796] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  234.455301][ T2796] RIP: 0033:0x7f15832cd1e7
[ 234.455878][ T2796] 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)
[  234.457597][ T2796] RSP: 002b:00007ffff0899d28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  234.458056][ T2796] RAX: ffffffffffffffda RBX: 00007ffff089a460 RCX: 00007f15832cd1e7
[  234.458521][ T2796] RDX: 0000000000000000 RSI: 00007ffff0899d90 RDI: 0000000000000005
[  234.458973][ T2796] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  234.459447][ T2796] R10: 0000000025abf910 R11: 0000000000000246 R12: 0000000000000003
[  234.459900][ T2796] R13: 00000000686e7c58 R14: 0000000000499600 R15: 0000000000000000
| [  236.071401][ T2822] ------------[ cut here ]------------
| [ 236.071701][ T2822] WARNING: CPU: 0 PID: 2822 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) 
| [  236.072315][ T2822] Modules linked in: vxlan
| [  236.073318][ T2822] Tainted: [W]=WARN
[  236.073554][ T2822] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 236.073939][ T2822] 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) 
[ 236.074262][ T2822] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  236.075328][ T2822] RSP: 0018:ffffc90005c16ef0 EFLAGS: 00010246
[  236.075703][ T2822] RAX: 0000000000000000 RBX: ffff8880132c2000 RCX: 0000000000000001
[  236.076147][ T2822] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  236.076623][ T2822] RBP: ffffc90005c16fd8 R08: 0000000000000000 R09: 0000000000000000
[  236.077065][ T2822] R10: ffffc90005c17008 R11: ffffffff9138d1e0 R12: 1ffff92000b82de2
[  236.077532][ T2822] R13: 0000000000000596 R14: ffffc90005c17008 R15: ffff8880132c2f48
[  236.077973][ T2822] FS:  00007fc970dc4800(0000) GS:ffff8880d2799000(0000) knlGS:0000000000000000
[  236.078507][ T2822] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  236.078878][ T2822] CR2: 00000000004e6898 CR3: 000000000ad97003 CR4: 0000000000772ef0
[  236.079349][ T2822] PKRU: 55555554
[  236.079572][ T2822] Call Trace:
[  236.079794][ T2822]  <TASK>
[ 236.079948][ T2822] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 236.080249][ T2822] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 236.080579][ T2822] netif_set_mtu (net/core/dev.c:9652) 
[ 236.080894][ T2822] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 236.081220][ T2822] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 236.081467][ T2822] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 236.081783][ T2822] br_add_if (net/bridge/br_if.c:697) 
[ 236.082028][ T2822] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 236.082345][ T2822] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 236.082661][ T2822] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 236.082980][ T2822] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 236.083384][ T2822] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 236.083694][ T2822] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 236.084001][ T2822] ? __kernel_text_address (kernel/extable.c:79) 
[ 236.084329][ T2822] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 236.084648][ T2822] ? __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) 
[ 236.084962][ T2822] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 236.085362][ T2822] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 236.085679][ T2822] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 236.085987][ T2822] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 236.086305][ T2822] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 236.086623][ T2822] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 236.086947][ T2822] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 236.087255][ T2822] ? __create_object (mm/kmemleak.c:771) 
[ 236.087584][ T2822] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 236.087884][ T2822] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 236.088186][ T2822] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 236.088571][ T2822] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 236.088874][ T2822] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 236.089177][ T2822] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 236.089479][ T2822] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 236.089780][ T2822] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 236.090082][ T2822] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 236.090383][ T2822] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 236.090681][ T2822] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 236.090976][ T2822] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 236.091274][ T2822] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 236.091597][ T2822] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 236.091913][ T2822] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 236.092223][ T2822] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 236.092555][ T2822] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 236.092882][ T2822] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 236.093189][ T2822] ? 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) 
[ 236.093507][ T2822] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 236.093820][ T2822] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 236.094130][ T2822] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 236.094460][ T2822] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 236.094778][ T2822] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 236.095087][ T2822] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 236.095416][ T2822] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 236.095732][ T2822] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 236.096061][ T2822] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 236.096481][ T2822] ___sys_sendmsg (net/socket.c:2670) 
[ 236.096794][ T2822] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 236.097112][ T2822] ? __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) 
[ 236.097521][ T2822] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 236.097834][ T2822] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 236.098149][ T2822] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 236.098473][ T2822] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 236.098784][ T2822] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 236.099096][ T2822] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 236.099430][ T2822] __sys_sendmsg (net/socket.c:2700) 
[ 236.099742][ T2822] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 236.100128][ T2822] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 236.100468][ T2822] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 236.100788][ T2822] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 236.101102][ T2822] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  236.101497][ T2822] RIP: 0033:0x7fc970f911e7
[ 236.101833][ T2822] 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)
[  236.102908][ T2822] RSP: 002b:00007fffeeb5c318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  236.103377][ T2822] RAX: ffffffffffffffda RBX: 00007fffeeb5ca50 RCX: 00007fc970f911e7
[  236.103836][ T2822] RDX: 0000000000000000 RSI: 00007fffeeb5c380 RDI: 0000000000000005
[  236.104275][ T2822] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  236.104732][ T2822] R10: 000000001bb94910 R11: 0000000000000246 R12: 0000000000000003
[  236.105174][ T2822] R13: 00000000686e7c5a R14: 0000000000499600 R15: 0000000000000000
| [  239.801456][ T2873] ------------[ cut here ]------------
| [ 239.801757][ T2873] WARNING: CPU: 1 PID: 2873 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) 
| [  239.802370][ T2873] Modules linked in: vxlan
| [  239.803319][ T2873] Tainted: [W]=WARN
[  239.803556][ T2873] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 239.803931][ T2873] 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) 
[ 239.804238][ T2873] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  239.805491][ T2873] RSP: 0018:ffffc90005ba6ef0 EFLAGS: 00010246
[  239.805894][ T2873] RAX: 0000000000000000 RBX: ffff8880052b2000 RCX: 0000000000000001
[  239.806797][ T2873] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  239.807277][ T2873] RBP: ffffc90005ba6fd8 R08: 0000000000000000 R09: 0000000000000000
[  239.807944][ T2873] R10: ffffc90005ba7008 R11: ffffffff9138d1e0 R12: 1ffff92000b74de2
[  239.808529][ T2873] R13: 00000000000005dc R14: ffffc90005ba7008 R15: ffff8880052b2f48
[  239.808987][ T2873] FS:  00007f7794759800(0000) GS:ffff8880d2819000(0000) knlGS:0000000000000000
[  239.809528][ T2873] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  239.809915][ T2873] CR2: 00000000004e68a0 CR3: 000000000a5f7003 CR4: 0000000000772ef0
[  239.810397][ T2873] PKRU: 55555554
[  239.810626][ T2873] Call Trace:
[  239.810856][ T2873]  <TASK>
[ 239.811014][ T2873] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 239.811343][ T2873] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 239.811664][ T2873] netif_set_mtu (net/core/dev.c:9652) 
[ 239.811966][ T2873] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 239.812296][ T2873] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 239.812534][ T2873] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 239.812845][ T2873] br_add_if (net/bridge/br_if.c:697) 
[ 239.813081][ T2873] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 239.813389][ T2873] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 239.813694][ T2873] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 239.813999][ T2873] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 239.814390][ T2873] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 239.814693][ T2873] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 239.814992][ T2873] ? __kernel_text_address (kernel/extable.c:79) 
[ 239.815320][ T2873] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 239.815628][ T2873] ? __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) 
[ 239.815931][ T2873] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 239.816319][ T2873] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 239.816623][ T2873] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 239.816926][ T2873] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 239.817232][ T2873] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 239.817583][ T2873] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 239.817895][ T2873] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 239.818190][ T2873] ? __create_object (mm/kmemleak.c:771) 
[ 239.818503][ T2873] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 239.818806][ T2873] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 239.819106][ T2873] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 239.819498][ T2873] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 239.819810][ T2873] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 239.820116][ T2873] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 239.820432][ T2873] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 239.820738][ T2873] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 239.821037][ T2873] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 239.821344][ T2873] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 239.821650][ T2873] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 239.821950][ T2873] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 239.822252][ T2873] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 239.823151][ T2873] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 239.824353][ T2873] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 239.824672][ T2873] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 239.824996][ T2873] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 239.825335][ T2873] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 239.825660][ T2873] ? 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) 
[ 239.825983][ T2873] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 239.826316][ T2873] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 239.826632][ T2873] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 239.826954][ T2873] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 239.827279][ T2873] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 239.827636][ T2873] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 239.827965][ T2873] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 239.828298][ T2873] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 239.828611][ T2873] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 239.829012][ T2873] ___sys_sendmsg (net/socket.c:2670) 
[ 239.829335][ T2873] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 239.829650][ T2873] ? __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) 
[ 239.830044][ T2873] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 239.830381][ T2873] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 239.830696][ T2873] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 239.831013][ T2873] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 239.831336][ T2873] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 239.831637][ T2873] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 239.831943][ T2873] __sys_sendmsg (net/socket.c:2700) 
[ 239.832242][ T2873] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 239.832626][ T2873] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 239.832940][ T2873] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 239.833243][ T2873] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 239.833554][ T2873] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  239.833925][ T2873] RIP: 0033:0x7f77949261e7
[ 239.834235][ T2873] 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)
[  239.835328][ T2873] RSP: 002b:00007ffc4c893b38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  239.835782][ T2873] RAX: ffffffffffffffda RBX: 00007ffc4c894270 RCX: 00007f77949261e7
[  239.836230][ T2873] RDX: 0000000000000000 RSI: 00007ffc4c893ba0 RDI: 0000000000000005
[  239.836688][ T2873] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  239.837139][ T2873] R10: 0000000015348910 R11: 0000000000000246 R12: 0000000000000003
[  239.837605][ T2873] R13: 00000000686e7c5e R14: 0000000000499600 R15: 0000000000000000
| [  241.415532][ T2899] ------------[ cut here ]------------
| [ 241.415844][ T2899] WARNING: CPU: 2 PID: 2899 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) 
| [  241.416452][ T2899] Modules linked in: vxlan
| [  241.417396][ T2899] Tainted: [W]=WARN
[  241.417644][ T2899] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 241.418026][ T2899] 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) 
[ 241.418355][ T2899] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  241.419471][ T2899] RSP: 0018:ffffc90005e26ef0 EFLAGS: 00010246
[  241.419867][ T2899] RAX: 0000000000000000 RBX: ffff8880052b2000 RCX: 0000000000000001
[  241.420331][ T2899] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  241.420786][ T2899] RBP: ffffc90005e26fd8 R08: 0000000000000000 R09: 0000000000000000
[  241.421235][ T2899] R10: ffffc90005e27008 R11: ffffffff91cceab8 R12: 1ffff92000bc4de2
[  241.421704][ T2899] R13: 00000000000005aa R14: ffffc90005e27008 R15: ffff8880052b2f48
[  241.422157][ T2899] FS:  00007f3e5b59b800(0000) GS:ffff8880d2899000(0000) knlGS:0000000000000000
[  241.422690][ T2899] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  241.423077][ T2899] CR2: 00000000004e68a0 CR3: 000000000e637004 CR4: 0000000000772ef0
[  241.423542][ T2899] PKRU: 55555554
[  241.423779][ T2899] Call Trace:
[  241.424016][ T2899]  <TASK>
[ 241.424185][ T2899] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 241.424507][ T2899] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 241.424819][ T2899] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 241.425198][ T2899] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 241.425524][ T2899] netif_set_mtu (net/core/dev.c:9652) 
[ 241.425834][ T2899] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 241.426158][ T2899] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 241.426548][ T2899] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 241.426790][ T2899] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 241.427106][ T2899] br_add_if (net/bridge/br_if.c:697) 
[ 241.427361][ T2899] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 241.427780][ T2899] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 241.428128][ T2899] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 241.428483][ T2899] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 241.428875][ T2899] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 241.429204][ T2899] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 241.429527][ T2899] ? __kernel_text_address (kernel/extable.c:79) 
[ 241.429836][ T2899] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 241.430166][ T2899] ? __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) 
[ 241.430488][ T2899] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 241.430877][ T2899] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 241.431203][ T2899] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 241.431520][ T2899] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 241.431826][ T2899] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 241.432156][ T2899] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 241.432492][ T2899] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 241.432815][ T2899] ? __create_object (mm/kmemleak.c:771) 
[ 241.433154][ T2899] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 241.433504][ T2899] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 241.433831][ T2899] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 241.434239][ T2899] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 241.434579][ T2899] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 241.434908][ T2899] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 241.435239][ T2899] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 241.435589][ T2899] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 241.435926][ T2899] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 241.436261][ T2899] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 241.436602][ T2899] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 241.436927][ T2899] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 241.437268][ T2899] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 241.437616][ T2899] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 241.437945][ T2899] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 241.438361][ T2899] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 241.438711][ T2899] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 241.439032][ T2899] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 241.439385][ T2899] ? 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) 
[ 241.439718][ T2899] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 241.440036][ T2899] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 241.440373][ T2899] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 241.440690][ T2899] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 241.441009][ T2899] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 241.441343][ T2899] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 241.441658][ T2899] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 241.441971][ T2899] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 241.442303][ T2899] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 241.442827][ T2899] ___sys_sendmsg (net/socket.c:2670) 
[ 241.443367][ T2899] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 241.443901][ T2899] ? __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) 
[ 241.444587][ T2899] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 241.445165][ T2899] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 241.445760][ T2899] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 241.446362][ T2899] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 241.446929][ T2899] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 241.447502][ T2899] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 241.448078][ T2899] __sys_sendmsg (net/socket.c:2700) 
[ 241.448647][ T2899] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 241.449348][ T2899] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 241.449934][ T2899] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 241.450505][ T2899] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 241.451062][ T2899] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  241.451702][ T2899] RIP: 0033:0x7f3e5b7681e7
[ 241.452191][ T2899] 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)
[  241.453310][ T2899] RSP: 002b:00007fff66412628 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  241.453772][ T2899] RAX: ffffffffffffffda RBX: 00007fff66412d60 RCX: 00007f3e5b7681e7
[  241.454245][ T2899] RDX: 0000000000000000 RSI: 00007fff66412690 RDI: 0000000000000005
[  241.454713][ T2899] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  241.455190][ T2899] R10: 000000003d2da910 R11: 0000000000000246 R12: 0000000000000003
[  241.455653][ T2899] R13: 00000000686e7c5f R14: 0000000000499600 R15: 0000000000000000
| [  243.370948][ T2925] ------------[ cut here ]------------
| [ 243.371247][ T2925] WARNING: CPU: 1 PID: 2925 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) 
| [  243.371857][ T2925] Modules linked in: vxlan
| [  243.372794][ T2925] Tainted: [W]=WARN
[  243.373024][ T2925] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 243.373408][ T2925] 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) 
[ 243.373714][ T2925] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  243.374797][ T2925] RSP: 0018:ffffc90005d66ef0 EFLAGS: 00010246
[  243.375182][ T2925] RAX: 0000000000000000 RBX: ffff8880052b2000 RCX: 0000000000000001
[  243.375640][ T2925] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  243.376088][ T2925] RBP: ffffc90005d66fd8 R08: 0000000000000000 R09: 0000000000000000
[  243.376537][ T2925] R10: ffffc90005d67008 R11: ffffffff91cceab8 R12: 1ffff92000bacde2
[  243.376988][ T2925] R13: 0000000000000596 R14: ffffc90005d67008 R15: ffff8880052b2f48
[  243.377452][ T2925] FS:  00007f1740e3a800(0000) GS:ffff8880d2819000(0000) knlGS:0000000000000000
[  243.377973][ T2925] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  243.378359][ T2925] CR2: 000055bfc39cbdec CR3: 0000000012a2a002 CR4: 0000000000772ef0
[  243.378812][ T2925] PKRU: 55555554
[  243.379037][ T2925] Call Trace:
[  243.379263][ T2925]  <TASK>
[ 243.379439][ T2925] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 243.379754][ T2925] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 243.380058][ T2925] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 243.380441][ T2925] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 243.380744][ T2925] netif_set_mtu (net/core/dev.c:9652) 
[ 243.381045][ T2925] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 243.381387][ T2925] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 243.381765][ T2925] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 243.381995][ T2925] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 243.382310][ T2925] br_add_if (net/bridge/br_if.c:697) 
[ 243.382549][ T2925] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 243.382849][ T2925] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 243.383153][ T2925] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 243.383463][ T2925] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 243.383847][ T2925] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 243.384148][ T2925] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 243.384453][ T2925] ? __kernel_text_address (kernel/extable.c:79) 
[ 243.384756][ T2925] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 243.385055][ T2925] ? __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) 
[ 243.385368][ T2925] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 243.385735][ T2925] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 243.386034][ T2925] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 243.386338][ T2925] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 243.386634][ T2925] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 243.386929][ T2925] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 243.387225][ T2925] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 243.387537][ T2925] ? __create_object (mm/kmemleak.c:771) 
[ 243.387845][ T2925] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 243.388140][ T2925] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 243.388447][ T2925] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 243.388813][ T2925] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 243.389114][ T2925] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 243.389421][ T2925] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 243.389717][ T2925] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 243.390029][ T2925] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 243.390337][ T2925] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 243.390635][ T2925] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 243.390933][ T2925] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 243.391226][ T2925] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 243.391532][ T2925] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 243.391832][ T2925] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 243.392135][ T2925] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 243.392449][ T2925] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 243.392747][ T2925] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 243.393059][ T2925] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 243.393361][ T2925] ? 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) 
[ 243.393664][ T2925] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 243.393962][ T2925] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 243.394257][ T2925] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 243.394573][ T2925] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 243.394872][ T2925] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 243.395167][ T2925] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 243.395479][ T2925] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 243.395779][ T2925] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 243.396073][ T2925] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 243.396461][ T2925] ___sys_sendmsg (net/socket.c:2670) 
[ 243.396762][ T2925] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 243.397054][ T2925] ? __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) 
[ 243.397438][ T2925] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 243.397740][ T2925] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 243.398042][ T2925] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 243.398354][ T2925] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 243.398653][ T2925] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 243.398953][ T2925] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 243.399260][ T2925] __sys_sendmsg (net/socket.c:2700) 
[ 243.399560][ T2925] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 243.399926][ T2925] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 243.400232][ T2925] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 243.400534][ T2925] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 243.400831][ T2925] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  243.401205][ T2925] RIP: 0033:0x7f17410071e7
[ 243.401519][ T2925] 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)
[  243.402581][ T2925] RSP: 002b:00007ffeb864cae8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  243.403030][ T2925] RAX: ffffffffffffffda RBX: 00007ffeb864d220 RCX: 00007f17410071e7
[  243.403486][ T2925] RDX: 0000000000000000 RSI: 00007ffeb864cb50 RDI: 0000000000000005
[  243.403924][ T2925] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  243.404372][ T2925] R10: 0000000013ff2910 R11: 0000000000000246 R12: 0000000000000003
[  243.404813][ T2925] R13: 00000000686e7c61 R14: 0000000000499600 R15: 0000000000000000
| [  245.281938][ T2951] ------------[ cut here ]------------
| [ 245.282242][ T2951] WARNING: CPU: 0 PID: 2951 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) 
| [  245.282855][ T2951] Modules linked in: vxlan
| [  245.283767][ T2951] Tainted: [W]=WARN
[  245.283995][ T2951] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 245.284371][ T2951] 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) 
[ 245.284678][ T2951] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  245.285735][ T2951] RSP: 0018:ffffc90005f16ef0 EFLAGS: 00010246
[  245.286111][ T2951] RAX: 0000000000000000 RBX: ffff8880052b2000 RCX: 0000000000000001
[  245.286565][ T2951] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  245.287004][ T2951] RBP: ffffc90005f16fd8 R08: 0000000000000000 R09: 0000000000000000
[  245.287465][ T2951] R10: ffffc90005f17008 R11: ffffffff91cceab8 R12: 1ffff92000be2de2
[  245.287905][ T2951] R13: 0000000000000596 R14: ffffc90005f17008 R15: ffff8880052b2f48
[  245.288360][ T2951] FS:  00007fdb8ad4a800(0000) GS:ffff8880d2799000(0000) knlGS:0000000000000000
[  245.288876][ T2951] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  245.289253][ T2951] CR2: 00000000004e68a0 CR3: 0000000012be0001 CR4: 0000000000772ef0
[  245.289707][ T2951] PKRU: 55555554
[  245.289929][ T2951] Call Trace:
[  245.290151][ T2951]  <TASK>
[ 245.290314][ T2951] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 245.290617][ T2951] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 245.290910][ T2951] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 245.291279][ T2951] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 245.291596][ T2951] netif_set_mtu (net/core/dev.c:9652) 
[ 245.291891][ T2951] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 245.292199][ T2951] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 245.292577][ T2951] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 245.292808][ T2951] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 245.293109][ T2951] br_add_if (net/bridge/br_if.c:697) 
[ 245.293354][ T2951] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 245.293653][ T2951] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 245.293954][ T2951] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 245.294253][ T2951] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 245.294653][ T2951] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 245.294954][ T2951] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 245.295245][ T2951] ? __kernel_text_address (kernel/extable.c:79) 
[ 245.295552][ T2951] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 245.295849][ T2951] ? __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) 
[ 245.296145][ T2951] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 245.296517][ T2951] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 245.296812][ T2951] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 245.297114][ T2951] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 245.297432][ T2951] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 245.297731][ T2951] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 245.298028][ T2951] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 245.298326][ T2951] ? __create_object (mm/kmemleak.c:771) 
[ 245.298626][ T2951] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 245.298928][ T2951] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 245.299229][ T2951] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 245.299629][ T2951] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 245.299946][ T2951] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 245.300260][ T2951] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 245.300577][ T2951] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 245.300892][ T2951] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 245.301224][ T2951] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 245.301543][ T2951] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 245.301864][ T2951] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 245.302175][ T2951] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 245.302493][ T2951] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 245.302809][ T2951] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 245.303124][ T2951] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 245.303443][ T2951] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 245.303756][ T2951] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 245.304077][ T2951] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 245.304398][ T2951] ? 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) 
[ 245.304710][ T2951] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 245.305022][ T2951] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 245.305338][ T2951] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 245.305654][ T2951] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 245.305965][ T2951] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 245.306276][ T2951] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 245.306630][ T2951] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 245.306944][ T2951] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 245.307254][ T2951] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 245.307666][ T2951] ___sys_sendmsg (net/socket.c:2670) 
[ 245.307976][ T2951] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 245.308296][ T2951] ? __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) 
[ 245.308685][ T2951] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 245.309001][ T2951] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 245.309322][ T2951] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 245.309641][ T2951] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 245.309949][ T2951] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 245.310258][ T2951] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 245.310583][ T2951] __sys_sendmsg (net/socket.c:2700) 
[ 245.310897][ T2951] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 245.311301][ T2951] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 245.311627][ T2951] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 245.311942][ T2951] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 245.312255][ T2951] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  245.312648][ T2951] RIP: 0033:0x7fdb8af171e7
[ 245.312972][ T2951] 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)
[  245.314098][ T2951] RSP: 002b:00007ffe27b20548 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  245.314576][ T2951] RAX: ffffffffffffffda RBX: 00007ffe27b20c80 RCX: 00007fdb8af171e7
[  245.315046][ T2951] RDX: 0000000000000000 RSI: 00007ffe27b205b0 RDI: 0000000000000005
[  245.315526][ T2951] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  245.315991][ T2951] R10: 000000002b194910 R11: 0000000000000246 R12: 0000000000000003
[  245.316460][ T2951] R13: 00000000686e7c63 R14: 0000000000499600 R15: 0000000000000000
| [  248.959896][   T68] ------------[ cut here ]------------
| [ 248.960221][ T68] WARNING: CPU: 3 PID: 68 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) 
| [  248.960945][   T68] Modules linked in: vxlan
| [  248.961987][   T68] Tainted: [W]=WARN
[  248.962226][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  248.962619][   T68] Workqueue: netns cleanup_net
[ 248.962947][ T68] 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) 
[ 248.963266][ T68] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  248.964380][   T68] RSP: 0018:ffffc90000497360 EFLAGS: 00010246
[  248.964775][   T68] RAX: 0000000000000000 RBX: ffff8880052b2000 RCX: 0000000000000001
[  248.965247][   T68] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  248.965743][   T68] RBP: ffffc90000497450 R08: 0000000000000000 R09: 0000000000000000
[  248.966227][   T68] R10: ffffc90000497480 R11: ffffffff9138d1e0 R12: 1ffff92000092e70
[  248.966714][   T68] R13: 0000000000000596 R14: ffffc90000497480 R15: ffff8880052b2f48
[  248.967200][   T68] FS:  0000000000000000(0000) GS:ffff8880d2919000(0000) knlGS:0000000000000000
[  248.967796][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  248.968208][   T68] CR2: 00007ffc830e3d6c CR3: 000000007394a005 CR4: 0000000000772ef0
[  248.968702][   T68] PKRU: 55555554
[  248.968949][   T68] Call Trace:
[  248.969194][   T68]  <TASK>
[ 248.969368][ T68] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 248.969698][ T68] ? __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) 
[ 248.970081][ T68] ? br_del_if (net/bridge/br_if.c:742) 
[ 248.970340][ T68] ? br_device_event (net/bridge/br.c:141) 
[ 248.970666][ T68] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 248.970983][ T68] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 248.971316][ T68] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 248.971718][ T68] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 248.972115][ T68] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 248.972451][ T68] ? cleanup_net (net/core/net_namespace.c:684) 
[ 248.972770][ T68] ? process_one_work (kernel/workqueue.c:3238) 
[ 248.973090][ T68] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 248.973417][ T68] ? kthread (kernel/kthread.c:464) 
[ 248.973658][ T68] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 248.973980][ T68] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 248.974319][ T68] netif_set_mtu (net/core/dev.c:9652) 
[ 248.974624][ T68] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 248.974952][ T68] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 248.975192][ T68] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 248.975523][ T68] br_del_if (net/bridge/br_if.c:743) 
[ 248.975768][ T68] br_device_event (net/bridge/br.c:141) 
[ 248.976083][ T68] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 248.976407][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 248.976721][ T68] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 248.977114][ T68] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 248.977540][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 248.977929][ T68] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 248.978258][ T68] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 248.978669][ T68] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 248.979068][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 248.979405][ T68] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 248.979814][ T68] ? 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) 
[ 248.980129][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 248.980520][ T68] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 248.980897][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 248.981280][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 248.981677][ T68] default_device_exit_batch (net/core/dev.c:12673) 
[ 248.981990][ T68] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 248.982393][ T68] ops_undo_list (net/core/net_namespace.c:250) 
[ 248.982705][ T68] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 248.983010][ T68] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 248.983330][ T68] cleanup_net (net/core/net_namespace.c:684) 
[ 248.983641][ T68] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 248.983951][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 248.984267][ T68] process_one_work (kernel/workqueue.c:3238) 
[ 248.984591][ T68] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 248.984908][ T68] ? assign_work (kernel/workqueue.c:1200) 
[ 248.985217][ T68] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 248.985542][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 248.985850][ T68] kthread (kernel/kthread.c:464) 
[ 248.986081][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 248.986402][ T68] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 248.986727][ T68] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 248.987052][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 248.987386][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 248.987711][ T68] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 248.988030][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 248.988361][ T68] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  249.009408][   T68] ------------[ cut here ]------------
| [ 249.009719][ T68] WARNING: CPU: 3 PID: 68 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) 
| [  249.010274][   T68] Modules linked in: vxlan
| [  249.011353][   T68] Tainted: [W]=WARN
[  249.011597][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  249.012009][   T68] Workqueue: netns cleanup_net
[ 249.012499][ T68] 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) 
[ 249.012832][ T68] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  249.014130][   T68] RSP: 0018:ffffc90000497360 EFLAGS: 00010246
[  249.014681][   T68] RAX: 0000000000000000 RBX: ffff8880052b2000 RCX: 0000000000000001
[  249.015170][   T68] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  249.015790][   T68] RBP: ffffc90000497450 R08: 0000000000000000 R09: 0000000000000000
[  249.016271][   T68] R10: ffffc90000497480 R11: ffffffff9138d1e0 R12: 1ffff92000092e70
[  249.016885][   T68] R13: 00000000000005aa R14: ffffc90000497480 R15: ffff8880052b2f48
[  249.017499][   T68] FS:  0000000000000000(0000) GS:ffff8880d2919000(0000) knlGS:0000000000000000
[  249.018043][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  249.018577][   T68] CR2: 00007ffc830e3d6c CR3: 0000000013130004 CR4: 0000000000772ef0
[  249.019035][   T68] PKRU: 55555554
[  249.019265][   T68] Call Trace:
[  249.019637][   T68]  <TASK>
[ 249.019794][ T68] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 249.020107][ T68] ? __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) 
[ 249.020628][ T68] ? br_del_if (net/bridge/br_if.c:742) 
[ 249.020862][ T68] ? br_device_event (net/bridge/br.c:141) 
[ 249.021171][ T68] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 249.021615][ T68] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 249.021941][ T68] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 249.022483][ T68] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 249.022886][ T68] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 249.023210][ T68] ? cleanup_net (net/core/net_namespace.c:684) 
[ 249.023669][ T68] ? process_one_work (kernel/workqueue.c:3238) 
[ 249.023988][ T68] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 249.024364][ T68] ? kthread (kernel/kthread.c:464) 
[ 249.024607][ T68] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 249.024925][ T68] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 249.025259][ T68] netif_set_mtu (net/core/dev.c:9652) 
[ 249.025601][ T68] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 249.025944][ T68] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 249.026187][ T68] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 249.026519][ T68] br_del_if (net/bridge/br_if.c:743) 
[ 249.026763][ T68] br_device_event (net/bridge/br.c:141) 
[ 249.027094][ T68] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 249.027440][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 249.027770][ T68] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 249.028180][ T68] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 249.028613][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 249.029020][ T68] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 249.029371][ T68] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 249.029792][ T68] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 249.030211][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 249.030543][ T68] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 249.030944][ T68] ? 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) 
[ 249.031258][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 249.031644][ T68] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 249.032021][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 249.032409][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 249.032797][ T68] default_device_exit_batch (net/core/dev.c:12673) 
[ 249.033108][ T68] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 249.033525][ T68] ops_undo_list (net/core/net_namespace.c:250) 
[ 249.033851][ T68] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 249.034174][ T68] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 249.034508][ T68] cleanup_net (net/core/net_namespace.c:684) 
[ 249.034831][ T68] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 249.035151][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 249.035481][ T68] process_one_work (kernel/workqueue.c:3238) 
[ 249.035809][ T68] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 249.036125][ T68] ? assign_work (kernel/workqueue.c:1200) 
[ 249.036448][ T68] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 249.036762][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 249.037070][ T68] kthread (kernel/kthread.c:464) 
[ 249.037314][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 249.037631][ T68] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 249.037933][ T68] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 249.038249][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 249.038560][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 249.038867][ T68] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 249.039175][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 249.039500][ T68] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  249.063496][   T68] ------------[ cut here ]------------
| [ 249.063823][ T68] WARNING: CPU: 0 PID: 68 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) 
| [  249.064368][   T68] Modules linked in: vxlan
| [  249.065428][   T68] Tainted: [W]=WARN
[  249.065663][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  249.066064][   T68] Workqueue: netns cleanup_net
[ 249.068017][ T68] 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) 
[ 249.068382][ T68] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  249.069521][   T68] RSP: 0018:ffffc90000497360 EFLAGS: 00010246
[  249.069928][   T68] RAX: 0000000000000000 RBX: ffff8880052b2000 RCX: 0000000000000001
[  249.070406][   T68] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  249.070871][   T68] RBP: ffffc90000497450 R08: 0000000000000000 R09: 0000000000000000
[  249.071348][   T68] R10: ffffc90000497480 R11: ffffffff9138d1e0 R12: 1ffff92000092e70
[  249.071805][   T68] R13: 00000000000005dc R14: ffffc90000497480 R15: ffff8880052b2f48
[  249.072275][   T68] FS:  0000000000000000(0000) GS:ffff8880d2799000(0000) knlGS:0000000000000000
[  249.072819][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  249.073223][   T68] CR2: 00007ffc40d66c78 CR3: 0000000009ed6006 CR4: 0000000000772ef0
[  249.073694][   T68] PKRU: 55555554
[  249.073925][   T68] Call Trace:
[  249.074173][   T68]  <TASK>
[ 249.074338][ T68] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 249.074646][ T68] ? __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) 
[ 249.075040][ T68] ? br_del_if (net/bridge/br_if.c:742) 
[ 249.075278][ T68] ? br_device_event (net/bridge/br.c:141) 
[ 249.075592][ T68] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 249.075901][ T68] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 249.076220][ T68] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 249.076608][ T68] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 249.076986][ T68] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 249.077313][ T68] ? cleanup_net (net/core/net_namespace.c:684) 
[ 249.077627][ T68] ? process_one_work (kernel/workqueue.c:3238) 
[ 249.077933][ T68] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 249.078254][ T68] ? kthread (kernel/kthread.c:464) 
[ 249.078493][ T68] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 249.078801][ T68] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 249.079129][ T68] netif_set_mtu (net/core/dev.c:9652) 
[ 249.079448][ T68] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 249.079779][ T68] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 249.080012][ T68] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 249.080349][ T68] br_del_if (net/bridge/br_if.c:743) 
[ 249.080591][ T68] br_device_event (net/bridge/br.c:141) 
[ 249.080895][ T68] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 249.081228][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 249.081550][ T68] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 249.081937][ T68] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 249.082366][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 249.082757][ T68] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 249.083078][ T68] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 249.083507][ T68] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 249.083910][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 249.084240][ T68] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 249.084642][ T68] ? 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) 
[ 249.084950][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 249.085354][ T68] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 249.085732][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 249.086113][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 249.086535][ T68] default_device_exit_batch (net/core/dev.c:12673) 
[ 249.086851][ T68] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 249.087239][ T68] ops_undo_list (net/core/net_namespace.c:250) 
[ 249.087582][ T68] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 249.087886][ T68] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 249.088199][ T68] cleanup_net (net/core/net_namespace.c:684) 
[ 249.088537][ T68] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 249.088850][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 249.089167][ T68] process_one_work (kernel/workqueue.c:3238) 
[ 249.089508][ T68] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 249.089823][ T68] ? assign_work (kernel/workqueue.c:1200) 
[ 249.090134][ T68] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 249.090472][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 249.090778][ T68] kthread (kernel/kthread.c:464) 
[ 249.091010][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 249.091331][ T68] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 249.091650][ T68] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 249.091968][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 249.092307][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 249.092647][ T68] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 249.092967][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 249.093306][ T68] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  249.113371][   T68] ------------[ cut here ]------------
| [ 249.113690][ T68] WARNING: CPU: 3 PID: 68 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) 
| [  249.114221][   T68] Modules linked in: vxlan
| [  249.115261][   T68] Tainted: [W]=WARN
[  249.115502][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  249.115887][   T68] Workqueue: netns cleanup_net
[ 249.116211][ T68] 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) 
[ 249.116550][ T68] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  249.117719][   T68] RSP: 0018:ffffc90000497360 EFLAGS: 00010246
[  249.118129][   T68] RAX: 0000000000000000 RBX: ffff8880132c2000 RCX: 0000000000000001
[  249.118617][   T68] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  249.119102][   T68] RBP: ffffc90000497450 R08: 0000000000000000 R09: 0000000000000000
[  249.119597][   T68] R10: ffffc90000497480 R11: ffffffff9138d1e0 R12: 1ffff92000092e70
[  249.120078][   T68] R13: 00000000000005dc R14: ffffc90000497480 R15: ffff8880132c2f48
[  249.120562][   T68] FS:  0000000000000000(0000) GS:ffff8880d2919000(0000) knlGS:0000000000000000
[  249.121107][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  249.121516][   T68] CR2: 00007ffc830e3d6c CR3: 000000007394a005 CR4: 0000000000772ef0
[  249.121980][   T68] PKRU: 55555554
[  249.122213][   T68] Call Trace:
[  249.122452][   T68]  <TASK>
[ 249.122607][ T68] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 249.122914][ T68] ? __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) 
[ 249.123306][ T68] ? br_del_if (net/bridge/br_if.c:742) 
[ 249.123540][ T68] ? br_device_event (net/bridge/br.c:141) 
[ 249.123844][ T68] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 249.124163][ T68] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 249.124480][ T68] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 249.124861][ T68] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 249.125240][ T68] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 249.125552][ T68] ? cleanup_net (net/core/net_namespace.c:684) 
[ 249.125857][ T68] ? process_one_work (kernel/workqueue.c:3238) 
[ 249.126166][ T68] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 249.126476][ T68] ? kthread (kernel/kthread.c:464) 
[ 249.126707][ T68] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 249.127011][ T68] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 249.127336][ T68] netif_set_mtu (net/core/dev.c:9652) 
[ 249.127703][ T68] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 249.128027][ T68] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 249.128266][ T68] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 249.128594][ T68] br_del_if (net/bridge/br_if.c:743) 
[ 249.128832][ T68] br_device_event (net/bridge/br.c:141) 
[ 249.129144][ T68] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 249.129483][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 249.129811][ T68] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 249.130205][ T68] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 249.130616][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 249.131008][ T68] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 249.131339][ T68] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 249.131738][ T68] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 249.132138][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 249.132457][ T68] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 249.132842][ T68] ? 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) 
[ 249.133155][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 249.133545][ T68] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 249.133922][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 249.134308][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 249.134700][ T68] default_device_exit_batch (net/core/dev.c:12673) 
[ 249.135007][ T68] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 249.135401][ T68] ops_undo_list (net/core/net_namespace.c:250) 
[ 249.135715][ T68] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 249.136025][ T68] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 249.136355][ T68] cleanup_net (net/core/net_namespace.c:684) 
[ 249.136662][ T68] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 249.136971][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 249.137292][ T68] process_one_work (kernel/workqueue.c:3238) 
[ 249.137624][ T68] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 249.137944][ T68] ? assign_work (kernel/workqueue.c:1200) 
[ 249.138256][ T68] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 249.138584][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 249.138894][ T68] kthread (kernel/kthread.c:464) 
[ 249.139125][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 249.139433][ T68] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 249.139736][ T68] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 249.140048][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 249.140368][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 249.140675][ T68] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 249.140979][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 249.141283][ T68] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  249.175258][   T68] ------------[ cut here ]------------
| [ 249.175601][ T68] WARNING: CPU: 3 PID: 68 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) 
| [  249.176161][   T68] Modules linked in: vxlan
| [  249.177270][   T68] Tainted: [W]=WARN
[  249.177544][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  249.177950][   T68] Workqueue: netns cleanup_net
[ 249.178298][ T68] 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) 
[ 249.178631][ T68] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[  249.179807][   T68] RSP: 0018:ffffc90000497360 EFLAGS: 00010246
[  249.180219][   T68] RAX: 0000000000000000 RBX: ffff88800cc7a000 RCX: 0000000000000001
[  249.180711][   T68] RDX: 0000000000000000 RSI: ffffffff90910751 RDI: ffffffff90058280
[  249.181194][   T68] RBP: ffffc90000497450 R08: 0000000000000000 R09: 0000000000000000
[  249.181690][   T68] R10: ffffc90000497480 R11: ffffffff9138d1e0 R12: 1ffff92000092e70
[  249.182180][   T68] R13: 00000000000005dc R14: ffffc90000497480 R15: ffff88800cc7af48
[  249.182676][   T68] FS:  0000000000000000(0000) GS:ffff8880d2919000(0000) knlGS:0000000000000000
[  249.183241][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  249.183657][   T68] CR2: 00007ffc830e3d6c CR3: 000000007394a005 CR4: 0000000000772ef0
[  249.184145][   T68] PKRU: 55555554
[  249.184405][   T68] Call Trace:
[  249.184650][   T68]  <TASK>
[ 249.184814][ T68] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 249.185139][ T68] ? __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) 
[ 249.185551][ T68] ? br_del_if (net/bridge/br_if.c:742) 
[ 249.185797][ T68] ? br_device_event (net/bridge/br.c:141) 
[ 249.186113][ T68] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 249.186443][ T68] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 249.186768][ T68] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 249.187167][ T68] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 249.187580][ T68] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 249.187900][ T68] ? cleanup_net (net/core/net_namespace.c:684) 
[ 249.188219][ T68] ? process_one_work (kernel/workqueue.c:3238) 
[ 249.188552][ T68] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 249.189073][ T68] ? kthread (kernel/kthread.c:464) 
[ 249.189324][ T68] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 249.189653][ T68] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 249.189991][ T68] netif_set_mtu (net/core/dev.c:9652) 
[ 249.190325][ T68] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 249.190667][ T68] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 249.190913][ T68] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 249.191244][ T68] br_del_if (net/bridge/br_if.c:743) 
[ 249.191505][ T68] br_device_event (net/bridge/br.c:141) 
[ 249.191829][ T68] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 249.192161][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 249.192502][ T68] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 249.192907][ T68] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 249.193342][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 249.193751][ T68] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 249.194093][ T68] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 249.194515][ T68] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 249.194933][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 249.195260][ T68] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 249.195674][ T68] ? 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) 
[ 249.196000][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 249.196413][ T68] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 249.196817][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 249.197217][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 249.197641][ T68] default_device_exit_batch (net/core/dev.c:12673) 
[ 249.197967][ T68] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 249.198378][ T68] ops_undo_list (net/core/net_namespace.c:250) 
[ 249.198706][ T68] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 249.199025][ T68] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 249.199368][ T68] cleanup_net (net/core/net_namespace.c:684) 
[ 249.199691][ T68] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 249.200014][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 249.200354][ T68] process_one_work (kernel/workqueue.c:3238) 
[ 249.200685][ T68] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 249.201016][ T68] ? assign_work (kernel/workqueue.c:1200) 
[ 249.201354][ T68] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 249.201684][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 249.202006][ T68] kthread (kernel/kthread.c:464) 
[ 249.202245][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 249.202574][ T68] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 249.202894][ T68] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 249.203221][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 249.203556][ T68] ? __pfx_kthread (kernel/kthread.c:413) 
[ 249.203865][ T68] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 249.204179][ T68] ? __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