======================================
| [   38.049827][  T468] br1: port 1(vethhv-11) entered forwarding state
| [   38.052311][  T468] ------------[ cut here ]------------
| [ 38.052650][ T468] WARNING: CPU: 0 PID: 468 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) 
| [   38.053251][  T468] Modules linked in: vxlan
[   38.054223][  T468] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 38.054596][ T468] 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) 
[ 38.054925][ T468] 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
[   38.055990][  T468] RSP: 0018:ffffc90000db6ef0 EFLAGS: 00010246
[   38.056369][  T468] RAX: 0000000000000000 RBX: ffff888011a62000 RCX: 0000000000000001
[   38.056837][  T468] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[   38.057300][  T468] RBP: ffffc90000db6fd8 R08: 0000000000000000 R09: 0000000000000000
[   38.057760][  T468] R10: ffffc90000db7008 R11: ffffffffac58d1e0 R12: 1ffff920001b6de2
[   38.058208][  T468] R13: 00000000000005dc R14: ffffc90000db7008 R15: ffff888011a62f48
[   38.058678][  T468] FS:  00007f6d40c35800(0000) GS:ffff8880bed99000(0000) knlGS:0000000000000000
[   38.059213][  T468] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   38.059597][  T468] CR2: 00000000004e6890 CR3: 000000001173e004 CR4: 0000000000772ef0
[   38.060059][  T468] PKRU: 55555554
[   38.060297][  T468] Call Trace:
[   38.060522][  T468]  <TASK>
[ 38.060701][ T468] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 38.061006][ T468] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 38.061319][ T468] netif_set_mtu (net/core/dev.c:9652) 
[ 38.061639][ T468] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 38.061955][ T468] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 38.062187][ T468] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 38.062485][ T468] br_add_if (net/bridge/br_if.c:697) 
[ 38.062744][ T468] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 38.063040][ T468] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 38.063339][ T468] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 38.063645][ T468] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 38.064020][ T468] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 38.064320][ T468] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 38.064633][ T468] ? __kernel_text_address (kernel/extable.c:79) 
[ 38.064933][ T468] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 38.065229][ T468] ? __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) 
[ 38.065526][ T468] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 38.065904][ T468] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 38.066202][ T468] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 38.066503][ T468] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 38.066809][ T468] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 38.067106][ T468] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 38.067402][ T468] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 38.067704][ T468] ? __create_object (mm/kmemleak.c:771) 
[ 38.068002][ T468] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 38.068306][ T468] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 38.068600][ T468] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 38.068993][ T468] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 38.069308][ T468] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 38.069619][ T468] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 38.069918][ T468] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 38.070218][ T468] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 38.070514][ T468] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 38.070815][ T468] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 38.071111][ T468] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 38.071414][ T468] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 38.071715][ T468] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 38.072014][ T468] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 38.072314][ T468] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 38.072626][ T468] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 38.072924][ T468] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 38.073235][ T468] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 38.073533][ T468] ? 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) 
[ 38.073842][ T468] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 38.074142][ T468] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 38.074436][ T468] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 38.074746][ T468] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 38.075046][ T468] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 38.075346][ T468] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 38.075665][ T468] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 38.075966][ T468] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 38.076257][ T468] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 38.076657][ T468] ___sys_sendmsg (net/socket.c:2670) 
[ 38.076955][ T468] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 38.077247][ T468] ? __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) 
[ 38.077625][ T468] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 38.077932][ T468] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 38.078230][ T468] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 38.078530][ T468] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 38.078831][ T468] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 38.079128][ T468] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 38.079440][ T468] __sys_sendmsg (net/socket.c:2700) 
[ 38.079745][ T468] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 38.080117][ T468] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 38.080424][ T468] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 38.080738][ T468] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 38.081038][ T468] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   38.081405][  T468] RIP: 0033:0x7f6d40e021e7
[ 38.081726][ T468] 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)
[   38.082795][  T468] RSP: 002b:00007fffd1ea4ba8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   38.083245][  T468] RAX: ffffffffffffffda RBX: 00007fffd1ea52e0 RCX: 00007f6d40e021e7
[   38.083711][  T468] RDX: 0000000000000000 RSI: 00007fffd1ea4c10 RDI: 0000000000000005
[   38.084160][  T468] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   38.084633][  T468] R10: 000000003fb71910 R11: 0000000000000246 R12: 0000000000000003
[   38.085089][  T468] R13: 00000000686e6f71 R14: 0000000000499600 R15: 0000000000000000
| [   39.703946][  T494] ------------[ cut here ]------------
| [ 39.704261][ T494] WARNING: CPU: 3 PID: 494 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) 
| [   39.704882][  T494] Modules linked in: vxlan
| [   39.705850][  T494] Tainted: [W]=WARN
[   39.706106][  T494] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 39.706492][ T494] 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) 
[ 39.706823][ T494] 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
[   39.707937][  T494] RSP: 0018:ffffc90000de6ef0 EFLAGS: 00010246
[   39.708334][  T494] RAX: 0000000000000000 RBX: ffff888011a62000 RCX: 0000000000000001
[   39.708804][  T494] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[   39.709291][  T494] RBP: ffffc90000de6fd8 R08: 0000000000000000 R09: 0000000000000000
[   39.709767][  T494] R10: ffffc90000de7008 R11: ffffffffaceceab8 R12: 1ffff920001bcde2
[   39.710238][  T494] R13: 00000000000005aa R14: ffffc90000de7008 R15: ffff888011a62f48
[   39.710712][  T494] FS:  00007fa460307800(0000) GS:ffff8880bef19000(0000) knlGS:0000000000000000
[   39.711256][  T494] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.711655][  T494] CR2: 00000000004e6890 CR3: 000000000cb57001 CR4: 0000000000772ef0
[   39.712127][  T494] PKRU: 55555554
[   39.712363][  T494] Call Trace:
[   39.712597][  T494]  <TASK>
[ 39.712767][ T494] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 39.713084][ T494] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 39.713397][ T494] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 39.713790][ T494] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 39.714104][ T494] netif_set_mtu (net/core/dev.c:9652) 
[ 39.714420][ T494] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 39.714748][ T494] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 39.715140][ T494] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 39.715377][ T494] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 39.715705][ T494] br_add_if (net/bridge/br_if.c:697) 
[ 39.715951][ T494] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 39.716263][ T494] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 39.716584][ T494] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 39.716911][ T494] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 39.717314][ T494] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 39.717636][ T494] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 39.717949][ T494] ? __kernel_text_address (kernel/extable.c:79) 
[ 39.718261][ T494] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 39.718581][ T494] ? __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) 
[ 39.718907][ T494] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 39.719310][ T494] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 39.719650][ T494] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 39.719962][ T494] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 39.720271][ T494] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 39.720580][ T494] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 39.720899][ T494] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 39.721207][ T494] ? __create_object (mm/kmemleak.c:771) 
[ 39.721526][ T494] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 39.721848][ T494] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 39.722164][ T494] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 39.722546][ T494] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 39.722870][ T494] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 39.723185][ T494] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 39.723496][ T494] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 39.723827][ T494] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 39.724140][ T494] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 39.724450][ T494] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 39.724768][ T494] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 39.725080][ T494] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 39.725392][ T494] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 39.725713][ T494] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 39.726027][ T494] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 39.726343][ T494] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 39.726663][ T494] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 39.726988][ T494] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 39.727298][ T494] ? 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) 
[ 39.727626][ T494] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 39.727943][ T494] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 39.728255][ T494] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 39.728576][ T494] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 39.728901][ T494] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 39.729223][ T494] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 39.729546][ T494] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 39.729874][ T494] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 39.730190][ T494] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 39.730590][ T494] ___sys_sendmsg (net/socket.c:2670) 
[ 39.730914][ T494] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 39.731270][ T494] ? __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) 
[ 39.731674][ T494] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 39.731990][ T494] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 39.732304][ T494] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 39.732635][ T494] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 39.732950][ T494] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 39.733269][ T494] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 39.733586][ T494] __sys_sendmsg (net/socket.c:2700) 
[ 39.733902][ T494] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 39.734293][ T494] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 39.734626][ T494] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 39.734941][ T494] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 39.735287][ T494] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   39.735695][  T494] RIP: 0033:0x7fa4604d41e7
[ 39.736020][ T494] 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)
[   39.737139][  T494] RSP: 002b:00007ffc796e2938 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   39.737620][  T494] RAX: ffffffffffffffda RBX: 00007ffc796e3070 RCX: 00007fa4604d41e7
[   39.738098][  T494] RDX: 0000000000000000 RSI: 00007ffc796e29a0 RDI: 0000000000000005
[   39.738559][  T494] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   39.739033][  T494] R10: 000000002b055910 R11: 0000000000000246 R12: 0000000000000003
[   39.739541][  T494] R13: 00000000686e6f73 R14: 0000000000499600 R15: 0000000000000000
| [   43.440010][  T544] ------------[ cut here ]------------
| [ 43.440313][ T544] WARNING: CPU: 3 PID: 544 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) 
| [   43.440906][  T544] Modules linked in: vxlan
| [   43.441817][  T544] Tainted: [W]=WARN
[   43.442039][  T544] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 43.442408][ T544] 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) 
[ 43.442724][ T544] 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
[   43.443786][  T544] RSP: 0018:ffffc90000f56ef0 EFLAGS: 00010246
[   43.444163][  T544] RAX: 0000000000000000 RBX: ffff888004ed2000 RCX: 0000000000000001
[   43.444625][  T544] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[   43.445067][  T544] RBP: ffffc90000f56fd8 R08: 0000000000000000 R09: 0000000000000000
[   43.445510][  T544] R10: ffffc90000f57008 R11: ffffffffac58d1e0 R12: 1ffff920001eade2
[   43.445979][  T544] R13: 00000000000005dc R14: ffffc90000f57008 R15: ffff888004ed2f48
[   43.446420][  T544] FS:  00007fcabb8cd800(0000) GS:ffff8880bef19000(0000) knlGS:0000000000000000
[   43.446945][  T544] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.447319][  T544] CR2: 00000000004e6898 CR3: 000000000d916005 CR4: 0000000000772ef0
[   43.447774][  T544] PKRU: 55555554
[   43.447994][  T544] Call Trace:
[   43.448218][  T544]  <TASK>
[ 43.448372][ T544] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 43.448677][ T544] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.448986][ T544] netif_set_mtu (net/core/dev.c:9652) 
[ 43.449294][ T544] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 43.449614][ T544] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 43.449851][ T544] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 43.450153][ T544] br_add_if (net/bridge/br_if.c:697) 
[ 43.450384][ T544] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 43.450688][ T544] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 43.450986][ T544] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 43.451285][ T544] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 43.451674][ T544] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 43.451980][ T544] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 43.452271][ T544] ? __kernel_text_address (kernel/extable.c:79) 
[ 43.452566][ T544] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.452871][ T544] ? __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) 
[ 43.453166][ T544] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 43.453530][ T544] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.453833][ T544] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.454133][ T544] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 43.454427][ T544] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 43.454731][ T544] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.455025][ T544] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 43.455314][ T544] ? __create_object (mm/kmemleak.c:771) 
[ 43.455616][ T544] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 43.455913][ T544] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 43.456208][ T544] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 43.456575][ T544] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 43.456886][ T544] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 43.457185][ T544] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 43.457476][ T544] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.457782][ T544] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.458077][ T544] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 43.458367][ T544] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 43.458677][ T544] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 43.458971][ T544] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 43.459278][ T544] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 43.459578][ T544] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.459887][ T544] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 43.460180][ T544] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 43.460475][ T544] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 43.460789][ T544] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 43.461089][ T544] ? 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) 
[ 43.461385][ T544] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 43.461692][ T544] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 43.461988][ T544] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.462293][ T544] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 43.462591][ T544] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 43.462892][ T544] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 43.463204][ T544] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 43.463499][ T544] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 43.463797][ T544] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 43.464207][ T544] ___sys_sendmsg (net/socket.c:2670) 
[ 43.464502][ T544] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 43.464805][ T544] ? __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) 
[ 43.465173][ T544] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 43.465478][ T544] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.465782][ T544] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.466082][ T544] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.466377][ T544] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 43.466682][ T544] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 43.466986][ T544] __sys_sendmsg (net/socket.c:2700) 
[ 43.467281][ T544] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 43.467659][ T544] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 43.467968][ T544] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.468266][ T544] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 43.468565][ T544] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   43.468937][  T544] RIP: 0033:0x7fcabba9a1e7
[ 43.469250][ T544] 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)
[   43.470322][  T544] RSP: 002b:00007ffe97e713f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   43.470777][  T544] RAX: ffffffffffffffda RBX: 00007ffe97e71b30 RCX: 00007fcabba9a1e7
[   43.471218][  T544] RDX: 0000000000000000 RSI: 00007ffe97e71460 RDI: 0000000000000005
[   43.471670][  T544] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   43.472111][  T544] R10: 000000000159f910 R11: 0000000000000246 R12: 0000000000000003
[   43.472551][  T544] R13: 00000000686e6f76 R14: 0000000000499600 R15: 0000000000000000
| [   45.121177][  T570] ------------[ cut here ]------------
| [ 45.121503][ T570] WARNING: CPU: 0 PID: 570 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) 
| [   45.122138][  T570] Modules linked in: vxlan
| [   45.123108][  T570] Tainted: [W]=WARN
[   45.123345][  T570] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 45.123744][ T570] 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) 
[ 45.124065][ T570] 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
[   45.125190][  T570] RSP: 0018:ffffc90001026ef0 EFLAGS: 00010246
[   45.125587][  T570] RAX: 0000000000000000 RBX: ffff888004ed2000 RCX: 0000000000000001
[   45.126057][  T570] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[   45.126525][  T570] RBP: ffffc90001026fd8 R08: 0000000000000000 R09: 0000000000000000
[   45.127041][  T570] R10: ffffc90001027008 R11: ffffffffaceceab8 R12: 1ffff92000204de2
[   45.127518][  T570] R13: 0000000000000596 R14: ffffc90001027008 R15: ffff888004ed2f48
[   45.128004][  T570] FS:  00007fc754094800(0000) GS:ffff8880bed99000(0000) knlGS:0000000000000000
[   45.128548][  T570] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   45.128954][  T570] CR2: 00000000004e6898 CR3: 0000000011afb001 CR4: 0000000000772ef0
[   45.129440][  T570] PKRU: 55555554
[   45.129690][  T570] Call Trace:
[   45.129923][  T570]  <TASK>
[ 45.130084][ T570] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 45.130403][ T570] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 45.130729][ T570] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 45.131116][ T570] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 45.131432][ T570] netif_set_mtu (net/core/dev.c:9652) 
[ 45.131775][ T570] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 45.132100][ T570] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 45.132492][ T570] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 45.132741][ T570] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 45.133059][ T570] br_add_if (net/bridge/br_if.c:697) 
[ 45.133307][ T570] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 45.133643][ T570] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 45.133996][ T570] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 45.134316][ T570] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 45.134724][ T570] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 45.135036][ T570] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 45.135345][ T570] ? __kernel_text_address (kernel/extable.c:79) 
[ 45.135667][ T570] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 45.135978][ T570] ? __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) 
[ 45.136329][ T570] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 45.136742][ T570] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 45.137057][ T570] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 45.137369][ T570] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 45.137715][ T570] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 45.138031][ T570] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 45.138368][ T570] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 45.138694][ T570] ? __create_object (mm/kmemleak.c:771) 
[ 45.139013][ T570] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 45.139352][ T570] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 45.139680][ T570] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 45.140064][ T570] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 45.140381][ T570] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 45.140709][ T570] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 45.141019][ T570] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 45.141338][ T570] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 45.141660][ T570] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 45.141972][ T570] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 45.142285][ T570] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 45.142596][ T570] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 45.142917][ T570] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 45.143230][ T570] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 45.143549][ T570] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 45.143876][ T570] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 45.144190][ T570] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 45.144511][ T570] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 45.144830][ T570] ? 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) 
[ 45.145141][ T570] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 45.145454][ T570] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 45.145776][ T570] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 45.146102][ T570] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 45.146417][ T570] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 45.146737][ T570] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 45.147061][ T570] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 45.147377][ T570] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 45.147696][ T570] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 45.148093][ T570] ___sys_sendmsg (net/socket.c:2670) 
[ 45.148410][ T570] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 45.148732][ T570] ? __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) 
[ 45.149120][ T570] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 45.149444][ T570] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 45.149770][ T570] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 45.150087][ T570] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 45.150400][ T570] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 45.150735][ T570] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 45.151056][ T570] __sys_sendmsg (net/socket.c:2700) 
[ 45.151364][ T570] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 45.151764][ T570] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 45.152088][ T570] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 45.152398][ T570] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 45.152719][ T570] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   45.153109][  T570] RIP: 0033:0x7fc7542611e7
[ 45.153430][ T570] 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)
[   45.154542][  T570] RSP: 002b:00007ffc4968d698 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   45.155018][  T570] RAX: ffffffffffffffda RBX: 00007ffc4968ddd0 RCX: 00007fc7542611e7
[   45.155490][  T570] RDX: 0000000000000000 RSI: 00007ffc4968d700 RDI: 0000000000000005
[   45.156221][  T570] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   45.156692][  T570] R10: 000000003b1b8910 R11: 0000000000000246 R12: 0000000000000003
[   45.157188][  T570] R13: 00000000686e6f78 R14: 0000000000499600 R15: 0000000000000000
| [   48.916020][  T621] ------------[ cut here ]------------
| [ 48.916325][ T621] WARNING: CPU: 0 PID: 621 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) 
| [   48.916922][  T621] Modules linked in: vxlan
| [   48.917838][  T621] Tainted: [W]=WARN
[   48.918066][  T621] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 48.918437][ T621] 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) 
[ 48.918748][ T621] 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
[   48.919825][  T621] RSP: 0018:ffffc900010b6ef0 EFLAGS: 00010246
[   48.920201][  T621] RAX: 0000000000000000 RBX: ffff888011792000 RCX: 0000000000000001
[   48.920875][  T621] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[   48.921318][  T621] RBP: ffffc900010b6fd8 R08: 0000000000000000 R09: 0000000000000000
[   48.921775][  T621] R10: ffffc900010b7008 R11: ffffffffac58d1e0 R12: 1ffff92000216de2
[   48.922226][  T621] R13: 00000000000005dc R14: ffffc900010b7008 R15: ffff888011792f48
[   48.922681][  T621] FS:  00007fd9d951c800(0000) GS:ffff8880bed99000(0000) knlGS:0000000000000000
[   48.923198][  T621] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.923579][  T621] CR2: 00000000004e6890 CR3: 000000000fd87006 CR4: 0000000000772ef0
[   48.924051][  T621] PKRU: 55555554
[   48.924274][  T621] Call Trace:
[   48.924495][  T621]  <TASK>
[ 48.924659][ T621] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 48.924958][ T621] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 48.925277][ T621] netif_set_mtu (net/core/dev.c:9652) 
[ 48.925575][ T621] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 48.925897][ T621] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 48.926125][ T621] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 48.926437][ T621] br_add_if (net/bridge/br_if.c:697) 
[ 48.926682][ T621] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 48.926978][ T621] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 48.927281][ T621] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 48.927582][ T621] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 48.927965][ T621] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 48.928262][ T621] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 48.928564][ T621] ? __kernel_text_address (kernel/extable.c:79) 
[ 48.928869][ T621] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 48.929164][ T621] ? __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) 
[ 48.929474][ T621] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 48.929844][ T621] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 48.930140][ T621] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 48.930434][ T621] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 48.930740][ T621] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 48.931036][ T621] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 48.931334][ T621] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 48.931637][ T621] ? __create_object (mm/kmemleak.c:771) 
[ 48.931936][ T621] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 48.932232][ T621] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 48.932532][ T621] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 48.932932][ T621] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 48.933236][ T621] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 48.933539][ T621] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 48.933842][ T621] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 48.934142][ T621] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 48.934439][ T621] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 48.934742][ T621] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 48.935038][ T621] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 48.935340][ T621] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 48.935646][ T621] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 48.935945][ T621] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 48.936247][ T621] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 48.936543][ T621] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 48.936847][ T621] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 48.937153][ T621] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 48.937453][ T621] ? 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) 
[ 48.937760][ T621] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 48.938058][ T621] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 48.938348][ T621] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 48.938657][ T621] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 48.938956][ T621] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 48.939261][ T621] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 48.939565][ T621] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 48.939881][ T621] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 48.940176][ T621] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 48.940558][ T621] ___sys_sendmsg (net/socket.c:2670) 
[ 48.940859][ T621] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 48.941155][ T621] ? __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) 
[ 48.941527][ T621] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 48.941838][ T621] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 48.942139][ T621] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 48.942442][ T621] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 48.942747][ T621] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 48.943045][ T621] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 48.943347][ T621] __sys_sendmsg (net/socket.c:2700) 
[ 48.943649][ T621] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 48.944050][ T621] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 48.944361][ T621] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 48.944770][ T621] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 48.945077][ T621] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   48.945443][  T621] RIP: 0033:0x7fd9d96e91e7
[ 48.945759][ T621] 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)
[   48.946822][  T621] RSP: 002b:00007ffcb85c7168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   48.947266][  T621] RAX: ffffffffffffffda RBX: 00007ffcb85c78a0 RCX: 00007fd9d96e91e7
[   48.947715][  T621] RDX: 0000000000000000 RSI: 00007ffcb85c71d0 RDI: 0000000000000005
[   48.948157][  T621] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   48.948601][  T621] R10: 000000003a0e2910 R11: 0000000000000246 R12: 0000000000000003
[   48.949053][  T621] R13: 00000000686e6f7c R14: 0000000000499600 R15: 0000000000000000
| [   50.700730][  T647] ------------[ cut here ]------------
| [ 50.701246][ T647] WARNING: CPU: 3 PID: 647 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) 
| [   50.702273][  T647] Modules linked in: vxlan
| [   50.705051][  T647] Tainted: [W]=WARN
[   50.705452][  T647] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 50.706141][ T647] 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) 
[ 50.706704][ T647] 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
[   50.708530][  T647] RSP: 0018:ffffc90001286ef0 EFLAGS: 00010246
[   50.709230][  T647] RAX: 0000000000000000 RBX: ffff888011792000 RCX: 0000000000000001
[   50.709728][  T647] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[   50.710168][  T647] RBP: ffffc90001286fd8 R08: 0000000000000000 R09: 0000000000000000
[   50.710617][  T647] R10: ffffc90001287008 R11: ffffffffaceceab8 R12: 1ffff92000250de2
[   50.711057][  T647] R13: 00000000000005aa R14: ffffc90001287008 R15: ffff888011792f48
[   50.711502][  T647] FS:  00007f830b329800(0000) GS:ffff8880bef19000(0000) knlGS:0000000000000000
[   50.712026][  T647] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   50.712398][  T647] CR2: 00000000004e6890 CR3: 00000000050a8006 CR4: 0000000000772ef0
[   50.712851][  T647] PKRU: 55555554
[   50.713073][  T647] Call Trace:
[   50.713295][  T647]  <TASK>
[ 50.713454][ T647] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 50.713768][ T647] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 50.714064][ T647] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 50.714428][ T647] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 50.714737][ T647] netif_set_mtu (net/core/dev.c:9652) 
[ 50.715035][ T647] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 50.715338][ T647] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 50.715719][ T647] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 50.715944][ T647] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 50.716243][ T647] br_add_if (net/bridge/br_if.c:697) 
[ 50.716476][ T647] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 50.716778][ T647] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 50.717086][ T647] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 50.717404][ T647] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 50.717813][ T647] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 50.718124][ T647] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 50.718415][ T647] ? __kernel_text_address (kernel/extable.c:79) 
[ 50.718722][ T647] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 50.719022][ T647] ? __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) 
[ 50.719330][ T647] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 50.719704][ T647] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 50.720057][ T647] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 50.720367][ T647] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 50.720691][ T647] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 50.721012][ T647] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 50.721324][ T647] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 50.721638][ T647] ? __create_object (mm/kmemleak.c:771) 
[ 50.721956][ T647] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 50.722271][ T647] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 50.722590][ T647] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 50.722987][ T647] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 50.723309][ T647] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 50.723634][ T647] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 50.723948][ T647] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 50.724258][ T647] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 50.724563][ T647] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 50.724880][ T647] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 50.725204][ T647] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 50.725508][ T647] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 50.725813][ T647] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 50.726123][ T647] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 50.726439][ T647] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 50.726745][ T647] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 50.727050][ T647] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 50.727377][ T647] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 50.727695][ T647] ? 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) 
[ 50.728012][ T647] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 50.728325][ T647] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 50.728641][ T647] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 50.728957][ T647] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 50.729282][ T647] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 50.729603][ T647] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 50.730071][ T647] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 50.730385][ T647] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 50.730691][ T647] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 50.731068][ T647] ___sys_sendmsg (net/socket.c:2670) 
[ 50.731358][ T647] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 50.731656][ T647] ? __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) 
[ 50.732060][ T647] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 50.732362][ T647] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 50.732669][ T647] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 50.732970][ T647] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 50.733265][ T647] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 50.733556][ T647] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 50.733862][ T647] __sys_sendmsg (net/socket.c:2700) 
[ 50.734155][ T647] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 50.734528][ T647] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 50.734843][ T647] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 50.735141][ T647] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 50.735435][ T647] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   50.735805][  T647] RIP: 0033:0x7f830b4f61e7
[ 50.736110][ T647] 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)
[   50.737178][  T647] RSP: 002b:00007ffe82a2dff8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   50.737630][  T647] RAX: ffffffffffffffda RBX: 00007ffe82a2e730 RCX: 00007f830b4f61e7
[   50.738071][  T647] RDX: 0000000000000000 RSI: 00007ffe82a2e060 RDI: 0000000000000005
[   50.738516][  T647] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   50.738965][  T647] R10: 000000003de57910 R11: 0000000000000246 R12: 0000000000000003
[   50.739425][  T647] R13: 00000000686e6f7e R14: 0000000000499600 R15: 0000000000000000
| [   54.543440][  T698] ------------[ cut here ]------------
| [ 54.543754][ T698] WARNING: CPU: 3 PID: 698 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   54.544373][  T698] Modules linked in: vxlan
| [   54.545343][  T698] Tainted: [W]=WARN
[   54.545580][  T698] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 54.545990][ T698] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 54.546319][ T698] 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
[   54.547446][  T698] RSP: 0018:ffffc90001376ef0 EFLAGS: 00010246
[   54.547847][  T698] RAX: 0000000000000000 RBX: ffff88800c7c2000 RCX: 0000000000000001
[   54.548323][  T698] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[   54.548802][  T698] RBP: ffffc90001376fd8 R08: 0000000000000000 R09: 0000000000000000
[   54.549292][  T698] R10: ffffc90001377008 R11: ffffffffac58d1e0 R12: 1ffff9200026ede2
[   54.549779][  T698] R13: 00000000000005dc R14: ffffc90001377008 R15: ffff88800c7c2f48
[   54.550252][  T698] FS:  00007f1f16339800(0000) GS:ffff8880bef19000(0000) knlGS:0000000000000000
[   54.550824][  T698] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   54.551218][  T698] CR2: 00000000004e6898 CR3: 000000000ee6c003 CR4: 0000000000772ef0
[   54.551708][  T698] PKRU: 55555554
[   54.551948][  T698] Call Trace:
[   54.552184][  T698]  <TASK>
[ 54.552345][ T698] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 54.552665][ T698] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.552991][ T698] netif_set_mtu (net/core/dev.c:9652) 
[ 54.553305][ T698] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 54.553641][ T698] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 54.553887][ T698] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 54.554204][ T698] br_add_if (net/bridge/br_if.c:697) 
[ 54.554451][ T698] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 54.554775][ T698] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 54.555092][ T698] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 54.555408][ T698] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 54.555811][ T698] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 54.556128][ T698] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 54.556439][ T698] ? __kernel_text_address (kernel/extable.c:79) 
[ 54.556760][ T698] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.557078][ T698] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 54.557394][ T698] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 54.557795][ T698] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 54.558111][ T698] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 54.558429][ T698] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 54.558746][ T698] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 54.559065][ T698] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.559390][ T698] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 54.559711][ T698] ? __create_object (mm/kmemleak.c:771) 
[ 54.560025][ T698] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 54.560339][ T698] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 54.560662][ T698] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 54.561056][ T698] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 54.561376][ T698] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 54.561699][ T698] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 54.562012][ T698] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.562328][ T698] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.562643][ T698] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 54.562953][ T698] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 54.563266][ T698] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 54.563585][ T698] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 54.563907][ T698] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 54.564224][ T698] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.564540][ T698] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 54.564862][ T698] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 54.565177][ T698] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 54.565499][ T698] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 54.565826][ T698] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 54.566140][ T698] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 54.566453][ T698] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 54.566771][ T698] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.567088][ T698] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 54.567402][ T698] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 54.567720][ T698] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 54.568042][ T698] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 54.568356][ T698] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 54.568678][ T698] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 54.569079][ T698] ___sys_sendmsg (net/socket.c:2670) 
[ 54.569409][ T698] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 54.569730][ T698] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 54.570122][ T698] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 54.570443][ T698] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.570767][ T698] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.571088][ T698] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.571401][ T698] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 54.571720][ T698] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 54.572043][ T698] __sys_sendmsg (net/socket.c:2700) 
[ 54.572354][ T698] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 54.572755][ T698] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 54.573078][ T698] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 54.573391][ T698] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 54.573710][ T698] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   54.574098][  T698] RIP: 0033:0x7f1f165061e7
[ 54.574422][ T698] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   54.575547][  T698] RSP: 002b:00007ffd70b87178 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   54.576024][  T698] RAX: ffffffffffffffda RBX: 00007ffd70b878b0 RCX: 00007f1f165061e7
[   54.576495][  T698] RDX: 0000000000000000 RSI: 00007ffd70b871e0 RDI: 0000000000000005
[   54.576968][  T698] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   54.577442][  T698] R10: 000000002c7fa910 R11: 0000000000000246 R12: 0000000000000003
[   54.577917][  T698] R13: 00000000686e6f82 R14: 0000000000499600 R15: 0000000000000000
| [   56.220361][  T724] ------------[ cut here ]------------
| [ 56.220700][ T724] WARNING: CPU: 3 PID: 724 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) 
| [   56.221328][  T724] Modules linked in: vxlan
| [   56.222309][  T724] Tainted: [W]=WARN
[   56.222548][  T724] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 56.222955][ T724] 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) 
[ 56.223279][ T724] 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
[   56.224423][  T724] RSP: 0018:ffffc90001466ef0 EFLAGS: 00010246
[   56.224841][  T724] RAX: 0000000000000000 RBX: ffff88800c7c2000 RCX: 0000000000000001
[   56.225306][  T724] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[   56.225792][  T724] RBP: ffffc90001466fd8 R08: 0000000000000000 R09: 0000000000000000
[   56.226266][  T724] R10: ffffc90001467008 R11: ffffffffac58d1e0 R12: 1ffff9200028cde2
[   56.226754][  T724] R13: 0000000000000596 R14: ffffc90001467008 R15: ffff88800c7c2f48
[   56.227226][  T724] FS:  00007f89d1e51800(0000) GS:ffff8880bef19000(0000) knlGS:0000000000000000
[   56.227814][  T724] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   56.228217][  T724] CR2: 00000000004e6898 CR3: 00000000050a0006 CR4: 0000000000772ef0
[   56.228712][  T724] PKRU: 55555554
[   56.228949][  T724] Call Trace:
[   56.229186][  T724]  <TASK>
[ 56.229356][ T724] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 56.229696][ T724] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 56.230023][ T724] netif_set_mtu (net/core/dev.c:9652) 
[ 56.230334][ T724] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 56.230684][ T724] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 56.230927][ T724] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 56.231250][ T724] br_add_if (net/bridge/br_if.c:697) 
[ 56.231495][ T724] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 56.231827][ T724] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 56.232148][ T724] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 56.232468][ T724] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 56.232890][ T724] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 56.233203][ T724] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 56.233513][ T724] ? __kernel_text_address (kernel/extable.c:79) 
[ 56.233850][ T724] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 56.234167][ T724] ? __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) 
[ 56.234484][ T724] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 56.234891][ T724] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 56.235214][ T724] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 56.235526][ T724] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 56.235862][ T724] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 56.236177][ T724] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 56.236492][ T724] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 56.236819][ T724] ? __create_object (mm/kmemleak.c:771) 
[ 56.237134][ T724] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 56.237446][ T724] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 56.237788][ T724] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 56.238178][ T724] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 56.238500][ T724] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 56.238843][ T724] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 56.239154][ T724] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 56.239494][ T724] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 56.239828][ T724] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 56.240147][ T724] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 56.240463][ T724] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 56.240798][ T724] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 56.241112][ T724] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 56.241427][ T724] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 56.241769][ T724] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 56.242082][ T724] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 56.242381][ T724] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 56.242742][ T724] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 56.243052][ T724] ? 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) 
[ 56.243367][ T724] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 56.243705][ T724] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 56.244018][ T724] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 56.244339][ T724] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 56.244667][ T724] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 56.244988][ T724] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 56.245306][ T724] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 56.245644][ T724] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 56.245956][ T724] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 56.246356][ T724] ___sys_sendmsg (net/socket.c:2670) 
[ 56.246688][ T724] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 56.247001][ T724] ? __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) 
[ 56.247398][ T724] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 56.247746][ T724] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 56.248063][ T724] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 56.248382][ T724] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 56.248713][ T724] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 56.249024][ T724] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 56.249398][ T724] __sys_sendmsg (net/socket.c:2700) 
[ 56.249730][ T724] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 56.250094][ T724] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 56.250402][ T724] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 56.250717][ T724] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 56.251019][ T724] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   56.251410][  T724] RIP: 0033:0x7f89d201e1e7
[ 56.251760][ T724] 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)
[   56.252902][  T724] RSP: 002b:00007fff68767078 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   56.253373][  T724] RAX: ffffffffffffffda RBX: 00007fff687677b0 RCX: 00007f89d201e1e7
[   56.253844][  T724] RDX: 0000000000000000 RSI: 00007fff687670e0 RDI: 0000000000000005
[   56.254320][  T724] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   56.254805][  T724] R10: 0000000034948910 R11: 0000000000000246 R12: 0000000000000003
[   56.255276][  T724] R13: 00000000686e6f83 R14: 0000000000499600 R15: 0000000000000000
| [   60.777973][   T66] ------------[ cut here ]------------
| [ 60.778289][ T66] WARNING: CPU: 0 PID: 66 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) 
| [   60.778853][   T66] Modules linked in: vxlan
| [   60.780320][   T66] Tainted: [W]=WARN
[   60.780554][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   60.780960][   T66] Workqueue: netns cleanup_net
[ 60.781314][ T66] 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) 
[ 60.781669][ T66] 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
[   60.782957][   T66] RSP: 0018:ffffc90000477360 EFLAGS: 00010246
[   60.783345][   T66] RAX: 0000000000000000 RBX: ffff88800c7c2000 RCX: 0000000000000001
[   60.784013][   T66] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[   60.784473][   T66] RBP: ffffc90000477450 R08: 0000000000000000 R09: 0000000000000000
[   60.785131][   T66] R10: ffffc90000477480 R11: ffffffffa8b40dac R12: 1ffff9200008ee70
[   60.785924][   T66] R13: 00000000000005dc R14: ffffc90000477480 R15: ffff88800c7c2f48
[   60.786385][   T66] FS:  0000000000000000(0000) GS:ffff8880bed99000(0000) knlGS:0000000000000000
[   60.787075][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   60.787647][   T66] CR2: 00005625061339a8 CR3: 000000006874a006 CR4: 0000000000772ef0
[   60.788113][   T66] PKRU: 55555554
[   60.788348][   T66] Call Trace:
[   60.788575][   T66]  <TASK>
[ 60.788880][ T66] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 60.789189][ T66] ? __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) 
[ 60.789583][ T66] ? br_del_if (net/bridge/br_if.c:742) 
[ 60.789825][ T66] ? br_device_event (net/bridge/br.c:141) 
[ 60.790130][ T66] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 60.790435][ T66] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 60.790757][ T66] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 60.791140][ T66] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 60.791520][ T66] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 60.791853][ T66] ? cleanup_net (net/core/net_namespace.c:684) 
[ 60.792158][ T66] ? process_one_work (kernel/workqueue.c:3238) 
[ 60.792464][ T66] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 60.792786][ T66] ? kthread (kernel/kthread.c:464) 
[ 60.793015][ T66] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 60.793317][ T66] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 60.793642][ T66] netif_set_mtu (net/core/dev.c:9652) 
[ 60.794001][ T66] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 60.794327][ T66] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 60.794560][ T66] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 60.794876][ T66] br_del_if (net/bridge/br_if.c:743) 
[ 60.795116][ T66] br_device_event (net/bridge/br.c:141) 
[ 60.795420][ T66] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 60.795745][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 60.796059][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 60.796443][ T66] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 60.796862][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 60.797253][ T66] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 60.797586][ T66] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 60.798003][ T66] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 60.798417][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 60.798746][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 60.799136][ T66] ? 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) 
[ 60.799484][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 60.799877][ T66] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 60.800277][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 60.800673][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 60.801066][ T66] default_device_exit_batch (net/core/dev.c:12673) 
[ 60.801398][ T66] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 60.801800][ T66] ops_undo_list (net/core/net_namespace.c:250) 
[ 60.802119][ T66] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 60.802422][ T66] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 60.802746][ T66] cleanup_net (net/core/net_namespace.c:684) 
[ 60.803053][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 60.803363][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 60.803683][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 60.804000][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 60.804316][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 60.804640][ T66] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 60.804958][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 60.805265][ T66] kthread (kernel/kthread.c:464) 
[ 60.805498][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 60.805810][ T66] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 60.806114][ T66] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 60.806421][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 60.806737][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 60.807049][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 60.807352][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 60.807673][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   60.831731][   T66] ------------[ cut here ]------------
| [ 60.832064][ T66] WARNING: CPU: 3 PID: 66 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) 
| [   60.833767][   T66] Modules linked in: vxlan
| [   60.834855][   T66] Tainted: [W]=WARN
[   60.835109][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   60.835495][   T66] Workqueue: netns cleanup_net
[ 60.835827][ T66] 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) 
[ 60.836151][ T66] 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
[   60.837282][   T66] RSP: 0018:ffffc90000477360 EFLAGS: 00010246
[   60.837680][   T66] RAX: 0000000000000000 RBX: ffff888011792000 RCX: 0000000000000001
[   60.838143][   T66] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[   60.838602][   T66] RBP: ffffc90000477450 R08: 0000000000000000 R09: 0000000000000000
[   60.839073][   T66] R10: ffffc90000477480 R11: ffffffffac58d1e0 R12: 1ffff9200008ee70
[   60.839545][   T66] R13: 00000000000005dc R14: ffffc90000477480 R15: ffff888011792f48
[   60.840022][   T66] FS:  0000000000000000(0000) GS:ffff8880bef19000(0000) knlGS:0000000000000000
[   60.840560][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   60.840959][   T66] CR2: 00005625061f1f90 CR3: 000000000d934006 CR4: 0000000000772ef0
[   60.841424][   T66] PKRU: 55555554
[   60.841661][   T66] Call Trace:
[   60.841892][   T66]  <TASK>
[ 60.842046][ T66] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 60.842357][ T66] ? __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) 
[ 60.842742][ T66] ? br_del_if (net/bridge/br_if.c:742) 
[ 60.842974][ T66] ? br_device_event (net/bridge/br.c:141) 
[ 60.843280][ T66] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 60.843584][ T66] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 60.843903][ T66] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 60.844290][ T66] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 60.844678][ T66] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 60.844985][ T66] ? cleanup_net (net/core/net_namespace.c:684) 
[ 60.845292][ T66] ? process_one_work (kernel/workqueue.c:3238) 
[ 60.845604][ T66] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 60.845917][ T66] ? kthread (kernel/kthread.c:464) 
[ 60.846145][ T66] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 60.846448][ T66] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 60.846867][ T66] netif_set_mtu (net/core/dev.c:9652) 
[ 60.847177][ T66] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 60.847501][ T66] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 60.847741][ T66] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 60.848078][ T66] br_del_if (net/bridge/br_if.c:743) 
[ 60.848311][ T66] br_device_event (net/bridge/br.c:141) 
[ 60.848625][ T66] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 60.848943][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 60.849292][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 60.849693][ T66] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 60.850094][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 60.850482][ T66] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 60.850815][ T66] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 60.851209][ T66] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 60.851617][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 60.851930][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 60.852324][ T66] ? 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) 
[ 60.852640][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 60.853019][ T66] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 60.853418][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 60.853805][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 60.854193][ T66] default_device_exit_batch (net/core/dev.c:12673) 
[ 60.854501][ T66] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 60.854909][ T66] ops_undo_list (net/core/net_namespace.c:250) 
[ 60.855226][ T66] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 60.855535][ T66] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 60.855856][ T66] cleanup_net (net/core/net_namespace.c:684) 
[ 60.856164][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 60.856471][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 60.856792][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 60.857107][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 60.857433][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 60.857750][ T66] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 60.858066][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 60.858383][ T66] kthread (kernel/kthread.c:464) 
[ 60.858623][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 60.858926][ T66] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 60.859238][ T66] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 60.859548][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 60.859862][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 60.860174][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 60.860508][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 60.860821][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   82.709214][  T964] ------------[ cut here ]------------
| [ 82.709546][ T964] WARNING: CPU: 2 PID: 964 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) 
| [   82.710182][  T964] Modules linked in: vxlan
| [   82.711341][  T964] Tainted: [W]=WARN
[   82.711579][  T964] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 82.711974][ T964] 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) 
[ 82.712293][ T964] 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
[   82.713375][  T964] RSP: 0018:ffffc90001d96ef0 EFLAGS: 00010246
[   82.713784][  T964] RAX: 0000000000000000 RBX: ffff88800507a000 RCX: 0000000000000001
[   82.714250][  T964] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[   82.714716][  T964] RBP: ffffc90001d96fd8 R08: 0000000000000000 R09: 0000000000000000
[   82.715178][  T964] R10: ffffc90001d97008 R11: ffffffffac58d1e0 R12: 1ffff920003b2de2
[   82.715641][  T964] R13: 00000000000005dc R14: ffffc90001d97008 R15: ffff88800507af48
[   82.716096][  T964] FS:  00007f2572cab800(0000) GS:ffff8880bee99000(0000) knlGS:0000000000000000
[   82.716632][  T964] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   82.717017][  T964] CR2: 00000000004e6890 CR3: 000000000b981005 CR4: 0000000000772ef0
[   82.717470][  T964] PKRU: 55555554
[   82.717735][  T964] Call Trace:
[   82.717973][  T964]  <TASK>
[ 82.718140][ T964] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 82.718449][ T964] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 82.718783][ T964] netif_set_mtu (net/core/dev.c:9652) 
[ 82.719096][ T964] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 82.719428][ T964] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 82.719684][ T964] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 82.720008][ T964] br_add_if (net/bridge/br_if.c:697) 
[ 82.720255][ T964] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 82.720560][ T964] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 82.720882][ T964] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 82.721192][ T964] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 82.721584][ T964] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 82.721914][ T964] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 82.722232][ T964] ? __kernel_text_address (kernel/extable.c:79) 
[ 82.722539][ T964] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 82.722864][ T964] ? __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) 
[ 82.723172][ T964] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 82.723550][ T964] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 82.723885][ T964] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 82.724191][ T964] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 82.724499][ T964] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 82.724818][ T964] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 82.725124][ T964] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 82.725427][ T964] ? __create_object (mm/kmemleak.c:771) 
[ 82.725756][ T964] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 82.726081][ T964] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 82.726386][ T964] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 82.726774][ T964] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 82.727093][ T964] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 82.727406][ T964] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 82.727724][ T964] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 82.728037][ T964] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 82.728342][ T964] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 82.728692][ T964] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 82.729003][ T964] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 82.729322][ T964] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 82.729664][ T964] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 82.729975][ T964] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 82.730284][ T964] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 82.730588][ T964] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 82.730906][ T964] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 82.731224][ T964] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 82.731527][ T964] ? 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) 
[ 82.731853][ T964] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 82.732163][ T964] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 82.732467][ T964] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 82.732792][ T964] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 82.733101][ T964] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 82.733410][ T964] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 82.733744][ T964] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 82.734068][ T964] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 82.734373][ T964] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 82.734776][ T964] ___sys_sendmsg (net/socket.c:2670) 
[ 82.735096][ T964] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 82.735405][ T964] ? __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) 
[ 82.735828][ T964] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 82.736167][ T964] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 82.736487][ T964] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 82.736813][ T964] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 82.737120][ T964] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 82.737426][ T964] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 82.737765][ T964] __sys_sendmsg (net/socket.c:2700) 
[ 82.738078][ T964] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 82.738453][ T964] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 82.738793][ T964] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 82.739101][ T964] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 82.739423][ T964] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   82.739813][  T964] RIP: 0033:0x7f2572e781e7
[ 82.740134][ T964] 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)
[   82.741218][  T964] RSP: 002b:00007ffe7d455428 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   82.741697][  T964] RAX: ffffffffffffffda RBX: 00007ffe7d455b60 RCX: 00007f2572e781e7
[   82.742150][  T964] RDX: 0000000000000000 RSI: 00007ffe7d455490 RDI: 0000000000000005
[   82.742600][  T964] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   82.743067][  T964] R10: 000000000e4bd910 R11: 0000000000000246 R12: 0000000000000003
[   82.743518][  T964] R13: 00000000686e6f9e R14: 0000000000499600 R15: 0000000000000000
| [   84.288958][  T990] ------------[ cut here ]------------
| [ 84.289261][ T990] WARNING: CPU: 3 PID: 990 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) 
| [   84.290792][  T990] Modules linked in: vxlan
| [   84.291753][  T990] Tainted: [W]=WARN
[   84.291979][  T990] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 84.292345][ T990] 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) 
[ 84.292653][ T990] 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
[   84.293713][  T990] RSP: 0018:ffffc90001e66ef0 EFLAGS: 00010246
[   84.294086][  T990] RAX: 0000000000000000 RBX: ffff88800507a000 RCX: 0000000000000001
[   84.294525][  T990] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[   84.294988][  T990] RBP: ffffc90001e66fd8 R08: 0000000000000000 R09: 0000000000000000
[   84.295433][  T990] R10: ffffc90001e67008 R11: ffffffffaceceab8 R12: 1ffff920003ccde2
[   84.295881][  T990] R13: 00000000000005aa R14: ffffc90001e67008 R15: ffff88800507af48
[   84.296324][  T990] FS:  00007f444aea6800(0000) GS:ffff8880bef19000(0000) knlGS:0000000000000000
[   84.296851][  T990] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.297227][  T990] CR2: 00000000004e6890 CR3: 0000000012044001 CR4: 0000000000772ef0
[   84.297686][  T990] PKRU: 55555554
[   84.297908][  T990] Call Trace:
[   84.298128][  T990]  <TASK>
[ 84.298279][ T990] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 84.298577][ T990] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 84.298899][ T990] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 84.299277][ T990] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 84.299583][ T990] netif_set_mtu (net/core/dev.c:9652) 
[ 84.299886][ T990] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 84.300193][ T990] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 84.300560][ T990] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 84.300789][ T990] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 84.301087][ T990] br_add_if (net/bridge/br_if.c:697) 
[ 84.301321][ T990] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 84.301620][ T990] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 84.301923][ T990] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 84.302222][ T990] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 84.302597][ T990] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 84.302898][ T990] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 84.303190][ T990] ? __kernel_text_address (kernel/extable.c:79) 
[ 84.303485][ T990] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 84.303787][ T990] ? __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) 
[ 84.304091][ T990] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 84.304454][ T990] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 84.304755][ T990] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 84.305047][ T990] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 84.305339][ T990] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 84.305642][ T990] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 84.305947][ T990] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 84.306288][ T990] ? __create_object (mm/kmemleak.c:771) 
[ 84.306774][ T990] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 84.307271][ T990] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 84.307779][ T990] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 84.308411][ T990] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 84.308959][ T990] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 84.309502][ T990] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 84.310046][ T990] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 84.310591][ T990] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 84.311126][ T990] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 84.311655][ T990] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 84.312182][ T990] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 84.312714][ T990] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 84.313202][ T990] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 84.313673][ T990] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 84.313992][ T990] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 84.314296][ T990] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 84.314626][ T990] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 84.314936][ T990] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 84.315230][ T990] ? 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) 
[ 84.315541][ T990] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 84.315846][ T990] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 84.316147][ T990] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 84.316458][ T990] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 84.316767][ T990] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 84.317063][ T990] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 84.317365][ T990] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 84.317681][ T990] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 84.317973][ T990] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 84.318353][ T990] ___sys_sendmsg (net/socket.c:2670) 
[ 84.318665][ T990] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 84.318957][ T990] ? __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) 
[ 84.319340][ T990] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 84.319765][ T990] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 84.320067][ T990] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 84.320367][ T990] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 84.320682][ T990] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 84.320985][ T990] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 84.321285][ T990] __sys_sendmsg (net/socket.c:2700) 
[ 84.321589][ T990] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 84.321965][ T990] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 84.322272][ T990] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 84.322584][ T990] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 84.322893][ T990] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   84.323266][  T990] RIP: 0033:0x7f444b0731e7
[ 84.323581][ T990] 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)
[   84.325133][  T990] RSP: 002b:00007ffebb8d3f78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   84.325595][  T990] RAX: ffffffffffffffda RBX: 00007ffebb8d46b0 RCX: 00007f444b0731e7
[   84.326044][  T990] RDX: 0000000000000000 RSI: 00007ffebb8d3fe0 RDI: 0000000000000005
[   84.326490][  T990] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   84.326933][  T990] R10: 0000000038372910 R11: 0000000000000246 R12: 0000000000000003
[   84.327375][  T990] R13: 00000000686e6f9f R14: 0000000000499600 R15: 0000000000000000
| [   88.065377][ T1040] ------------[ cut here ]------------
| [ 88.065730][ T1040] WARNING: CPU: 2 PID: 1040 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) 
| [   88.066354][ T1040] Modules linked in: vxlan
| [   88.067301][ T1040] Tainted: [W]=WARN
[   88.067562][ T1040] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 88.067956][ T1040] 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) 
[ 88.068275][ T1040] 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
[   88.069394][ T1040] RSP: 0018:ffffc90001f66ef0 EFLAGS: 00010246
[   88.069800][ T1040] RAX: 0000000000000000 RBX: ffff88800e26a000 RCX: 0000000000000001
[   88.070308][ T1040] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[   88.070873][ T1040] RBP: ffffc90001f66fd8 R08: 0000000000000000 R09: 0000000000000000
[   88.071340][ T1040] R10: ffffc90001f67008 R11: ffffffffac58d1e0 R12: 1ffff920003ecde2
[   88.071813][ T1040] R13: 00000000000005dc R14: ffffc90001f67008 R15: ffff88800e26af48
[   88.072270][ T1040] FS:  00007fede46a7800(0000) GS:ffff8880bee99000(0000) knlGS:0000000000000000
[   88.072833][ T1040] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.073221][ T1040] CR2: 00000000004e6898 CR3: 0000000011750006 CR4: 0000000000772ef0
[   88.073798][ T1040] PKRU: 55555554
[   88.074040][ T1040] Call Trace:
[   88.074276][ T1040]  <TASK>
[ 88.074471][ T1040] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 88.074807][ T1040] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 88.075139][ T1040] netif_set_mtu (net/core/dev.c:9652) 
[ 88.075451][ T1040] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 88.075786][ T1040] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 88.076034][ T1040] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 88.076361][ T1040] br_add_if (net/bridge/br_if.c:697) 
[ 88.076617][ T1040] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 88.076928][ T1040] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 88.077237][ T1040] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 88.077548][ T1040] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 88.077965][ T1040] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 88.078282][ T1040] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 88.078585][ T1040] ? __kernel_text_address (kernel/extable.c:79) 
[ 88.078906][ T1040] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 88.079217][ T1040] ? __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) 
[ 88.079536][ T1040] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 88.079925][ T1040] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 88.080235][ T1040] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 88.080547][ T1040] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 88.080869][ T1040] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 88.081177][ T1040] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 88.081483][ T1040] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 88.081795][ T1040] ? __create_object (mm/kmemleak.c:771) 
[ 88.082153][ T1040] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 88.082464][ T1040] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 88.082787][ T1040] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 88.083196][ T1040] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 88.083511][ T1040] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 88.083833][ T1040] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 88.084143][ T1040] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 88.084458][ T1040] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 88.084774][ T1040] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 88.085078][ T1040] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 88.085390][ T1040] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 88.085708][ T1040] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 88.086015][ T1040] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 88.086327][ T1040] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 88.086652][ T1040] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 88.086960][ T1040] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 88.087266][ T1040] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 88.087587][ T1040] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 88.087911][ T1040] ? 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) 
[ 88.088221][ T1040] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 88.088530][ T1040] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 88.088849][ T1040] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 88.089190][ T1040] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 88.089524][ T1040] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 88.089842][ T1040] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 88.090186][ T1040] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 88.090495][ T1040] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 88.090812][ T1040] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 88.091210][ T1040] ___sys_sendmsg (net/socket.c:2670) 
[ 88.091528][ T1040] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 88.091843][ T1040] ? __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) 
[ 88.092223][ T1040] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 88.092538][ T1040] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 88.092860][ T1040] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 88.093171][ T1040] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 88.093481][ T1040] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 88.093797][ T1040] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 88.094113][ T1040] __sys_sendmsg (net/socket.c:2700) 
[ 88.094415][ T1040] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 88.094814][ T1040] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 88.095132][ T1040] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 88.095438][ T1040] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 88.095770][ T1040] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   88.096242][ T1040] RIP: 0033:0x7fede48741e7
[ 88.096573][ T1040] 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)
[   88.097651][ T1040] RSP: 002b:00007ffc79224e28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   88.098111][ T1040] RAX: ffffffffffffffda RBX: 00007ffc79225560 RCX: 00007fede48741e7
[   88.098563][ T1040] RDX: 0000000000000000 RSI: 00007ffc79224e90 RDI: 0000000000000005
[   88.099035][ T1040] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   88.099506][ T1040] R10: 000000001b5bb910 R11: 0000000000000246 R12: 0000000000000003
[   88.100010][ T1040] R13: 00000000686e6fa3 R14: 0000000000499600 R15: 0000000000000000
| [   89.696677][ T1066] ------------[ cut here ]------------
| [ 89.696998][ T1066] WARNING: CPU: 0 PID: 1066 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) 
| [   89.697660][ T1066] Modules linked in: vxlan
| [   89.698649][ T1066] Tainted: [W]=WARN
[   89.698884][ T1066] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 89.699293][ T1066] 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) 
[ 89.699630][ T1066] 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
[   89.700769][ T1066] RSP: 0018:ffffc900020f6ef0 EFLAGS: 00010246
[   89.701164][ T1066] RAX: 0000000000000000 RBX: ffff88800e26a000 RCX: 0000000000000001
[   89.701660][ T1066] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[   89.702134][ T1066] RBP: ffffc900020f6fd8 R08: 0000000000000000 R09: 0000000000000000
[   89.702635][ T1066] R10: ffffc900020f7008 R11: ffffffffaceceab8 R12: 1ffff9200041ede2
[   89.703105][ T1066] R13: 0000000000000596 R14: ffffc900020f7008 R15: ffff88800e26af48
[   89.703581][ T1066] FS:  00007fb241b01800(0000) GS:ffff8880bed99000(0000) knlGS:0000000000000000
[   89.704144][ T1066] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.704552][ T1066] CR2: 00000000004e6898 CR3: 00000000051c3005 CR4: 0000000000772ef0
[   89.705038][ T1066] PKRU: 55555554
[   89.705273][ T1066] Call Trace:
[   89.705518][ T1066]  <TASK>
[ 89.705689][ T1066] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 89.706008][ T1066] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 89.706339][ T1066] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 89.706737][ T1066] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 89.707060][ T1066] netif_set_mtu (net/core/dev.c:9652) 
[ 89.707381][ T1066] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 89.707715][ T1066] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 89.708110][ T1066] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 89.708352][ T1066] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 89.708693][ T1066] br_add_if (net/bridge/br_if.c:697) 
[ 89.708941][ T1066] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 89.709258][ T1066] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 89.709622][ T1066] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 89.709941][ T1066] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 89.710337][ T1066] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 89.710670][ T1066] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 89.710978][ T1066] ? __kernel_text_address (kernel/extable.c:79) 
[ 89.711292][ T1066] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 89.711636][ T1066] ? __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) 
[ 89.711963][ T1066] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 89.712347][ T1066] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 89.712687][ T1066] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 89.712998][ T1066] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 89.713311][ T1066] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 89.713650][ T1066] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 89.713966][ T1066] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 89.714276][ T1066] ? __create_object (mm/kmemleak.c:771) 
[ 89.714599][ T1066] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 89.714922][ T1066] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 89.715239][ T1066] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 89.715652][ T1066] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 89.715972][ T1066] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 89.716294][ T1066] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 89.716644][ T1066] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 89.716961][ T1066] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 89.717274][ T1066] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 89.717592][ T1066] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 89.717917][ T1066] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 89.718232][ T1066] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 89.718545][ T1066] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 89.718886][ T1066] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 89.719211][ T1066] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 89.719540][ T1066] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 89.719879][ T1066] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 89.720202][ T1066] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 89.720511][ T1066] ? 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) 
[ 89.720853][ T1066] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 89.721168][ T1066] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 89.721484][ T1066] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 89.721825][ T1066] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 89.722141][ T1066] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 89.722451][ T1066] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 89.722797][ T1066] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 89.723111][ T1066] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 89.723419][ T1066] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 89.723858][ T1066] ___sys_sendmsg (net/socket.c:2670) 
[ 89.724172][ T1066] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 89.724481][ T1066] ? __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) 
[ 89.724896][ T1066] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 89.725210][ T1066] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 89.725526][ T1066] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 89.725871][ T1066] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 89.726194][ T1066] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 89.726502][ T1066] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 89.726848][ T1066] __sys_sendmsg (net/socket.c:2700) 
[ 89.727157][ T1066] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 89.727541][ T1066] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 89.727899][ T1066] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 89.728213][ T1066] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 89.728530][ T1066] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   89.728946][ T1066] RIP: 0033:0x7fb241cce1e7
[ 89.729279][ T1066] 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)
[   89.730417][ T1066] RSP: 002b:00007ffcb2644f88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   89.730918][ T1066] RAX: ffffffffffffffda RBX: 00007ffcb26456c0 RCX: 00007fb241cce1e7
[   89.731379][ T1066] RDX: 0000000000000000 RSI: 00007ffcb2644ff0 RDI: 0000000000000005
[   89.731877][ T1066] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   89.732357][ T1066] R10: 000000003d527910 R11: 0000000000000246 R12: 0000000000000003
[   89.732839][ T1066] R13: 00000000686e6fa5 R14: 0000000000499600 R15: 0000000000000000
| [   93.364153][ T1117] ------------[ cut here ]------------
| [ 93.364468][ T1117] WARNING: CPU: 2 PID: 1117 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) 
| [   93.365702][ T1117] Modules linked in: vxlan
| [   93.366746][ T1117] Tainted: [W]=WARN
[   93.366989][ T1117] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 93.367378][ T1117] 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) 
[ 93.367713][ T1117] 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
[   93.368808][ T1117] RSP: 0018:ffffc90002206ef0 EFLAGS: 00010246
[   93.369196][ T1117] RAX: 0000000000000000 RBX: ffff88801040a000 RCX: 0000000000000001
[   93.369681][ T1117] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[   93.370132][ T1117] RBP: ffffc90002206fd8 R08: 0000000000000000 R09: 0000000000000000
[   93.370588][ T1117] R10: ffffc90002207008 R11: ffffffffac58d1e0 R12: 1ffff92000440de2
[   93.371052][ T1117] R13: 00000000000005dc R14: ffffc90002207008 R15: ffff88801040af48
[   93.371507][ T1117] FS:  00007f9736159800(0000) GS:ffff8880bee99000(0000) knlGS:0000000000000000
[   93.372054][ T1117] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   93.372437][ T1117] CR2: 00000000004e6890 CR3: 0000000009ac1002 CR4: 0000000000772ef0
[   93.372903][ T1117] PKRU: 55555554
[   93.373140][ T1117] Call Trace:
[   93.373370][ T1117]  <TASK>
[ 93.373535][ T1117] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 93.373861][ T1117] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 93.374187][ T1117] netif_set_mtu (net/core/dev.c:9652) 
[ 93.374497][ T1117] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 93.374830][ T1117] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 93.375071][ T1117] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 93.375390][ T1117] br_add_if (net/bridge/br_if.c:697) 
[ 93.375650][ T1117] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 93.375954][ T1117] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 93.376262][ T1117] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 93.376578][ T1117] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 93.376976][ T1117] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 93.377294][ T1117] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 93.377599][ T1117] ? __kernel_text_address (kernel/extable.c:79) 
[ 93.377919][ T1117] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 93.378228][ T1117] ? __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) 
[ 93.378537][ T1117] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 93.378928][ T1117] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 93.379264][ T1117] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 93.379580][ T1117] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 93.379899][ T1117] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 93.380209][ T1117] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 93.380553][ T1117] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 93.380869][ T1117] ? __create_object (mm/kmemleak.c:771) 
[ 93.381181][ T1117] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 93.381487][ T1117] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 93.381804][ T1117] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 93.382215][ T1117] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 93.382532][ T1117] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 93.382857][ T1117] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 93.383172][ T1117] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 93.383488][ T1117] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 93.383824][ T1117] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 93.384149][ T1117] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 93.384481][ T1117] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 93.384804][ T1117] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 93.385116][ T1117] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 93.385425][ T1117] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 93.385745][ T1117] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 93.386050][ T1117] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 93.386378][ T1117] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 93.386705][ T1117] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 93.387019][ T1117] ? 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) 
[ 93.387327][ T1117] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 93.387646][ T1117] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 93.387954][ T1117] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 93.388265][ T1117] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 93.388579][ T1117] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 93.388894][ T1117] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 93.389219][ T1117] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 93.389570][ T1117] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 93.389887][ T1117] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 93.390309][ T1117] ___sys_sendmsg (net/socket.c:2670) 
[ 93.390620][ T1117] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 93.390924][ T1117] ? __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) 
[ 93.391300][ T1117] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 93.391625][ T1117] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 93.391934][ T1117] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 93.392246][ T1117] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 93.392551][ T1117] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 93.392865][ T1117] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 93.393181][ T1117] __sys_sendmsg (net/socket.c:2700) 
[ 93.393487][ T1117] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 93.393882][ T1117] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 93.394205][ T1117] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 93.394513][ T1117] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 93.394833][ T1117] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   93.395211][ T1117] RIP: 0033:0x7f97363261e7
[ 93.395530][ T1117] 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)
[   93.396617][ T1117] RSP: 002b:00007ffc440d8998 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   93.397082][ T1117] RAX: ffffffffffffffda RBX: 00007ffc440d90d0 RCX: 00007f97363261e7
[   93.397532][ T1117] RDX: 0000000000000000 RSI: 00007ffc440d8a00 RDI: 0000000000000005
[   93.397994][ T1117] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   93.398453][ T1117] R10: 0000000010137910 R11: 0000000000000246 R12: 0000000000000003
[   93.398913][ T1117] R13: 00000000686e6fa8 R14: 0000000000499600 R15: 0000000000000000
| [   95.052869][ T1143] ------------[ cut here ]------------
| [ 95.053182][ T1143] WARNING: CPU: 3 PID: 1143 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) 
| [   95.053777][ T1143] Modules linked in: vxlan
| [   95.054698][ T1143] Tainted: [W]=WARN
[   95.054933][ T1143] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 95.055303][ T1143] 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) 
[ 95.055615][ T1143] 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
[   95.056676][ T1143] RSP: 0018:ffffc90002316ef0 EFLAGS: 00010246
[   95.057056][ T1143] RAX: 0000000000000000 RBX: ffff88801040a000 RCX: 0000000000000001
[   95.057497][ T1143] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[   95.057946][ T1143] RBP: ffffc90002316fd8 R08: 0000000000000000 R09: 0000000000000000
[   95.058485][ T1143] R10: ffffc90002317008 R11: ffffffffac58d1e0 R12: 1ffff92000462de2
[   95.058942][ T1143] R13: 00000000000005aa R14: ffffc90002317008 R15: ffff88801040af48
[   95.059432][ T1143] FS:  00007fa253b71800(0000) GS:ffff8880bef19000(0000) knlGS:0000000000000000
[   95.059964][ T1143] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   95.060339][ T1143] CR2: 00000000004e6890 CR3: 000000000a6d6002 CR4: 0000000000772ef0
[   95.060800][ T1143] PKRU: 55555554
[   95.061025][ T1143] Call Trace:
[   95.061248][ T1143]  <TASK>
[ 95.061407][ T1143] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 95.061715][ T1143] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 95.062025][ T1143] netif_set_mtu (net/core/dev.c:9652) 
[ 95.062322][ T1143] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 95.062645][ T1143] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 95.062873][ T1143] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 95.063182][ T1143] br_add_if (net/bridge/br_if.c:697) 
[ 95.063418][ T1143] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 95.063723][ T1143] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 95.064024][ T1143] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 95.064328][ T1143] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 95.064711][ T1143] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 95.065003][ T1143] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 95.065305][ T1143] ? __kernel_text_address (kernel/extable.c:79) 
[ 95.065604][ T1143] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 95.065937][ T1143] ? __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) 
[ 95.066231][ T1143] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 95.066598][ T1143] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 95.066904][ T1143] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 95.067196][ T1143] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 95.067498][ T1143] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 95.067805][ T1143] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 95.068100][ T1143] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 95.068393][ T1143] ? __create_object (mm/kmemleak.c:771) 
[ 95.068698][ T1143] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 95.068994][ T1143] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 95.069297][ T1143] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 95.069675][ T1143] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 95.069984][ T1143] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 95.070286][ T1143] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 95.070582][ T1143] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 95.070895][ T1143] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 95.071192][ T1143] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 95.071484][ T1143] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 95.071791][ T1143] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 95.072085][ T1143] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 95.072383][ T1143] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 95.072693][ T1143] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 95.072994][ T1143] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 95.073290][ T1143] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 95.073586][ T1143] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 95.073902][ T1143] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 95.074196][ T1143] ? 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) 
[ 95.074499][ T1143] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 95.074809][ T1143] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 95.075104][ T1143] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 95.075403][ T1143] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 95.075714][ T1143] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 95.076010][ T1143] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 95.076311][ T1143] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 95.076628][ T1143] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 95.076922][ T1143] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 95.077302][ T1143] ___sys_sendmsg (net/socket.c:2670) 
[ 95.077596][ T1143] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 95.077897][ T1143] ? __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) 
[ 95.078265][ T1143] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 95.078563][ T1143] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 95.078875][ T1143] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 95.079176][ T1143] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 95.079477][ T1143] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 95.079779][ T1143] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 95.080083][ T1143] __sys_sendmsg (net/socket.c:2700) 
[ 95.080374][ T1143] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 95.080755][ T1143] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 95.081070][ T1143] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 95.081380][ T1143] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 95.081751][ T1143] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   95.082121][ T1143] RIP: 0033:0x7fa253d3e1e7
[ 95.082428][ T1143] 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)
[   95.083501][ T1143] RSP: 002b:00007ffef668d968 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   95.083954][ T1143] RAX: ffffffffffffffda RBX: 00007ffef668e0a0 RCX: 00007fa253d3e1e7
[   95.084394][ T1143] RDX: 0000000000000000 RSI: 00007ffef668d9d0 RDI: 0000000000000005
[   95.084842][ T1143] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   95.085293][ T1143] R10: 0000000032d06910 R11: 0000000000000246 R12: 0000000000000003
[   95.085740][ T1143] R13: 00000000686e6faa R14: 0000000000499600 R15: 0000000000000000
| [   99.100483][ T1193] ------------[ cut here ]------------
| [ 99.100879][ T1193] WARNING: CPU: 0 PID: 1193 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) 
| [   99.101494][ T1193] Modules linked in: vxlan
| [   99.102409][ T1193] Tainted: [W]=WARN
[   99.102640][ T1193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 99.103009][ T1193] 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) 
[ 99.103342][ T1193] 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
[   99.104798][ T1193] RSP: 0018:ffffc900024b6ef0 EFLAGS: 00010246
[   99.105406][ T1193] RAX: 0000000000000000 RBX: ffff88800e8aa000 RCX: 0000000000000001
[   99.106153][ T1193] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[   99.106921][ T1193] RBP: ffffc900024b6fd8 R08: 0000000000000000 R09: 0000000000000000
[   99.107716][ T1193] R10: ffffc900024b7008 R11: ffffffffac58d1e0 R12: 1ffff92000496de2
[   99.108524][ T1193] R13: 00000000000005dc R14: ffffc900024b7008 R15: ffff88800e8aaf48
[   99.109370][ T1193] FS:  00007f5259688800(0000) GS:ffff8880bed99000(0000) knlGS:0000000000000000
[   99.110306][ T1193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   99.110981][ T1193] CR2: 00000000004e6898 CR3: 0000000011532003 CR4: 0000000000772ef0
[   99.111796][ T1193] PKRU: 55555554
[   99.112191][ T1193] Call Trace:
[   99.112589][ T1193]  <TASK>
[ 99.112876][ T1193] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 99.113355][ T1193] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 99.113906][ T1193] netif_set_mtu (net/core/dev.c:9652) 
[ 99.114430][ T1193] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 99.115005][ T1193] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 99.115403][ T1193] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 99.115953][ T1193] br_add_if (net/bridge/br_if.c:697) 
[ 99.116371][ T1193] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 99.116910][ T1193] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 99.117441][ T1193] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 99.118013][ T1193] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 99.118691][ T1193] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 99.119227][ T1193] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 99.119775][ T1193] ? __kernel_text_address (kernel/extable.c:79) 
[ 99.120247][ T1193] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 99.120650][ T1193] ? __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) 
[ 99.120956][ T1193] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 99.121328][ T1193] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 99.121670][ T1193] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 99.121991][ T1193] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 99.122302][ T1193] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 99.122635][ T1193] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 99.122946][ T1193] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 99.123253][ T1193] ? __create_object (mm/kmemleak.c:771) 
[ 99.123600][ T1193] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 99.123927][ T1193] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 99.124239][ T1193] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 99.124639][ T1193] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 99.124957][ T1193] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 99.125273][ T1193] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 99.125583][ T1193] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 99.125910][ T1193] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 99.126223][ T1193] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 99.126529][ T1193] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 99.126849][ T1193] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 99.127149][ T1193] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 99.127474][ T1193] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 99.127786][ T1193] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 99.128088][ T1193] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 99.128382][ T1193] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 99.128689][ T1193] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 99.128996][ T1193] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 99.129308][ T1193] ? 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) 
[ 99.129618][ T1193] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 99.129916][ T1193] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 99.130212][ T1193] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 99.130515][ T1193] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 99.130828][ T1193] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 99.131127][ T1193] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 99.131461][ T1193] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 99.131774][ T1193] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 99.132070][ T1193] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 99.132447][ T1193] ___sys_sendmsg (net/socket.c:2670) 
[ 99.132747][ T1193] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 99.133044][ T1193] ? __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) 
[ 99.133414][ T1193] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 99.133757][ T1193] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 99.134057][ T1193] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 99.134357][ T1193] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 99.134660][ T1193] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 99.134953][ T1193] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 99.135255][ T1193] __sys_sendmsg (net/socket.c:2700) 
[ 99.135578][ T1193] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 99.135961][ T1193] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 99.136270][ T1193] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 99.136569][ T1193] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 99.136878][ T1193] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   99.137243][ T1193] RIP: 0033:0x7f52598551e7
[ 99.137550][ T1193] 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)
[   99.138628][ T1193] RSP: 002b:00007ffdefc07ad8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   99.139071][ T1193] RAX: ffffffffffffffda RBX: 00007ffdefc08210 RCX: 00007f52598551e7
[   99.139547][ T1193] RDX: 0000000000000000 RSI: 00007ffdefc07b40 RDI: 0000000000000005
[   99.140008][ T1193] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   99.140450][ T1193] R10: 0000000010809910 R11: 0000000000000246 R12: 0000000000000003
[   99.140900][ T1193] R13: 00000000686e6fae R14: 0000000000499600 R15: 0000000000000000
| [  100.823671][ T1219] ------------[ cut here ]------------
| [ 100.824099][ T1219] WARNING: CPU: 3 PID: 1219 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) 
| [  100.824693][ T1219] Modules linked in: vxlan
| [  100.825604][ T1219] Tainted: [W]=WARN
[  100.825851][ T1219] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 100.826227][ T1219] 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) 
[ 100.826529][ T1219] 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
[  100.828396][ T1219] RSP: 0018:ffffc90002536ef0 EFLAGS: 00010246
[  100.828798][ T1219] RAX: 0000000000000000 RBX: ffff88800e8aa000 RCX: 0000000000000001
[  100.829280][ T1219] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  100.829739][ T1219] RBP: ffffc90002536fd8 R08: 0000000000000000 R09: 0000000000000000
[  100.830178][ T1219] R10: ffffc90002537008 R11: ffffffffac58d1e0 R12: 1ffff920004a6de2
[  100.830624][ T1219] R13: 0000000000000596 R14: ffffc90002537008 R15: ffff88800e8aaf48
[  100.831072][ T1219] FS:  00007fb1321c0800(0000) GS:ffff8880bef19000(0000) knlGS:0000000000000000
[  100.831588][ T1219] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  100.831965][ T1219] CR2: 00000000004e6898 CR3: 0000000012a37004 CR4: 0000000000772ef0
[  100.832409][ T1219] PKRU: 55555554
[  100.832637][ T1219] Call Trace:
[  100.832866][ T1219]  <TASK>
[ 100.833020][ T1219] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 100.833318][ T1219] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 100.833640][ T1219] netif_set_mtu (net/core/dev.c:9652) 
[ 100.833940][ T1219] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 100.834250][ T1219] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 100.834474][ T1219] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 100.834782][ T1219] br_add_if (net/bridge/br_if.c:697) 
[ 100.835021][ T1219] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 100.835315][ T1219] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 100.835620][ T1219] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 100.835919][ T1219] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 100.836290][ T1219] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 100.836585][ T1219] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 100.836885][ T1219] ? __kernel_text_address (kernel/extable.c:79) 
[ 100.837189][ T1219] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 100.837486][ T1219] ? __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) 
[ 100.837789][ T1219] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 100.838209][ T1219] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 100.838512][ T1219] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 100.838835][ T1219] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 100.839131][ T1219] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 100.839451][ T1219] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 100.839762][ T1219] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 100.840057][ T1219] ? __create_object (mm/kmemleak.c:771) 
[ 100.840356][ T1219] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 100.840663][ T1219] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 100.840958][ T1219] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 100.841324][ T1219] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 100.841639][ T1219] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 100.841951][ T1219] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 100.842246][ T1219] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 100.842545][ T1219] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 100.842850][ T1219] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 100.843143][ T1219] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 100.843440][ T1219] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 100.843782][ T1219] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 100.844079][ T1219] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 100.844396][ T1219] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 100.844735][ T1219] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 100.845033][ T1219] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 100.845328][ T1219] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 100.845648][ T1219] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 100.845944][ T1219] ? 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) 
[ 100.846241][ T1219] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 100.846548][ T1219] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 100.846854][ T1219] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 100.847157][ T1219] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 100.847453][ T1219] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 100.847759][ T1219] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 100.848069][ T1219] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 100.848371][ T1219] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 100.848681][ T1219] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 100.849061][ T1219] ___sys_sendmsg (net/socket.c:2670) 
[ 100.849370][ T1219] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 100.849682][ T1219] ? __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) 
[ 100.850051][ T1219] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 100.850351][ T1219] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 100.850659][ T1219] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 100.850969][ T1219] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 100.851265][ T1219] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 100.851581][ T1219] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 100.851897][ T1219] __sys_sendmsg (net/socket.c:2700) 
[ 100.852192][ T1219] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 100.852561][ T1219] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 100.852877][ T1219] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 100.853187][ T1219] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 100.853486][ T1219] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  100.853857][ T1219] RIP: 0033:0x7fb13238d1e7
[ 100.854162][ T1219] 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)
[  100.855223][ T1219] RSP: 002b:00007ffc4aa1ab58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  100.855687][ T1219] RAX: ffffffffffffffda RBX: 00007ffc4aa1b290 RCX: 00007fb13238d1e7
[  100.856127][ T1219] RDX: 0000000000000000 RSI: 00007ffc4aa1abc0 RDI: 0000000000000005
[  100.856568][ T1219] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  100.857038][ T1219] R10: 000000003df30910 R11: 0000000000000246 R12: 0000000000000003
[  100.857490][ T1219] R13: 00000000686e6fb0 R14: 0000000000499600 R15: 0000000000000000
| [  105.404502][   T66] ------------[ cut here ]------------
| [ 105.404904][ T66] WARNING: CPU: 2 PID: 66 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) 
| [  105.405472][   T66] Modules linked in: vxlan
| [  105.406587][   T66] Tainted: [W]=WARN
[  105.406855][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  105.407255][   T66] Workqueue: netns cleanup_net
[ 105.407601][ T66] 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) 
[ 105.407970][ T66] 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
[  105.409098][   T66] RSP: 0018:ffffc90000477360 EFLAGS: 00010246
[  105.409525][   T66] RAX: 0000000000000000 RBX: ffff88800e8aa000 RCX: 0000000000000001
[  105.410027][   T66] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  105.410500][   T66] RBP: ffffc90000477450 R08: 0000000000000000 R09: 0000000000000000
[  105.410986][   T66] R10: ffffc90000477480 R11: ffffffffac58d1e0 R12: 1ffff9200008ee70
[  105.411493][   T66] R13: 00000000000005dc R14: ffffc90000477480 R15: ffff88800e8aaf48
[  105.412007][   T66] FS:  0000000000000000(0000) GS:ffff8880bee99000(0000) knlGS:0000000000000000
[  105.412561][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  105.412979][   T66] CR2: 00005624f9267dec CR3: 000000006874a003 CR4: 0000000000772ef0
[  105.413463][   T66] PKRU: 55555554
[  105.413722][   T66] Call Trace:
[  105.413981][   T66]  <TASK>
[ 105.414150][ T66] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 105.414470][ T66] ? __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) 
[ 105.414877][ T66] ? br_del_if (net/bridge/br_if.c:742) 
[ 105.415122][ T66] ? br_device_event (net/bridge/br.c:141) 
[ 105.415441][ T66] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 105.415792][ T66] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 105.416116][ T66] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 105.416507][ T66] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 105.416914][ T66] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 105.417230][ T66] ? cleanup_net (net/core/net_namespace.c:684) 
[ 105.417547][ T66] ? process_one_work (kernel/workqueue.c:3238) 
[ 105.417877][ T66] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 105.418211][ T66] ? kthread (kernel/kthread.c:464) 
[ 105.418455][ T66] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 105.418793][ T66] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 105.419124][ T66] netif_set_mtu (net/core/dev.c:9652) 
[ 105.419458][ T66] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 105.419818][ T66] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 105.420068][ T66] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 105.420399][ T66] br_del_if (net/bridge/br_if.c:743) 
[ 105.420656][ T66] br_device_event (net/bridge/br.c:141) 
[ 105.420981][ T66] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 105.421320][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 105.421661][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 105.422068][ T66] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 105.422482][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 105.422899][ T66] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 105.423261][ T66] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 105.423702][ T66] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 105.424135][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 105.424477][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 105.424905][ T66] ? 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) 
[ 105.425242][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 105.425654][ T66] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 105.426048][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 105.426447][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 105.426869][ T66] default_device_exit_batch (net/core/dev.c:12673) 
[ 105.427197][ T66] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 105.427627][ T66] ops_undo_list (net/core/net_namespace.c:250) 
[ 105.427968][ T66] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 105.428287][ T66] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 105.428625][ T66] cleanup_net (net/core/net_namespace.c:684) 
[ 105.428955][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 105.429300][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 105.429649][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 105.429984][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 105.430836][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 105.431178][ T66] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 105.431512][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 105.432112][ T66] kthread (kernel/kthread.c:464) 
[ 105.432372][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 105.433147][ T66] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 105.433475][ T66] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 105.433807][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 105.434370][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 105.434932][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 105.435255][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 105.435576][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  105.470864][   T66] ------------[ cut here ]------------
| [ 105.471209][ T66] WARNING: CPU: 2 PID: 66 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) 
| [  105.471788][   T66] Modules linked in: vxlan
| [  105.473151][   T66] Tainted: [W]=WARN
[  105.473408][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  105.473845][   T66] Workqueue: netns cleanup_net
[ 105.474192][ T66] 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) 
[ 105.474536][ T66] 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
[  105.475671][   T66] RSP: 0018:ffffc90000477360 EFLAGS: 00010246
[  105.476084][   T66] RAX: 0000000000000000 RBX: ffff88801040a000 RCX: 0000000000000001
[  105.476554][   T66] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  105.477059][   T66] RBP: ffffc90000477450 R08: 0000000000000000 R09: 0000000000000000
[  105.477529][   T66] R10: ffffc90000477480 R11: ffffffffac58d1e0 R12: 1ffff9200008ee70
[  105.478032][   T66] R13: 00000000000005dc R14: ffffc90000477480 R15: ffff88801040af48
[  105.478508][   T66] FS:  0000000000000000(0000) GS:ffff8880bee99000(0000) knlGS:0000000000000000
[  105.479069][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  105.479480][   T66] CR2: 00005624f9267dec CR3: 000000006874a003 CR4: 0000000000772ef0
[  105.479974][   T66] PKRU: 55555554
[  105.480224][   T66] Call Trace:
[  105.480470][   T66]  <TASK>
[ 105.480648][ T66] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 105.480977][ T66] ? __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) 
[ 105.481372][ T66] ? br_del_if (net/bridge/br_if.c:742) 
[ 105.481633][ T66] ? br_device_event (net/bridge/br.c:141) 
[ 105.481955][ T66] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 105.482275][ T66] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 105.482603][ T66] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 105.483011][ T66] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 105.483404][ T66] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 105.483730][ T66] ? cleanup_net (net/core/net_namespace.c:684) 
[ 105.484055][ T66] ? process_one_work (kernel/workqueue.c:3238) 
[ 105.484372][ T66] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 105.484702][ T66] ? kthread (kernel/kthread.c:464) 
[ 105.484967][ T66] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 105.485291][ T66] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 105.485635][ T66] netif_set_mtu (net/core/dev.c:9652) 
[ 105.485963][ T66] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 105.486302][ T66] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 105.486583][ T66] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 105.486926][ T66] br_del_if (net/bridge/br_if.c:743) 
[ 105.487185][ T66] br_device_event (net/bridge/br.c:141) 
[ 105.487520][ T66] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 105.487870][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 105.488217][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 105.488635][ T66] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 105.489065][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 105.489487][ T66] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 105.489847][ T66] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 105.490269][ T66] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 105.490722][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 105.491071][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 105.491475][ T66] ? 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) 
[ 105.491811][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 105.492232][ T66] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 105.492640][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 105.493045][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 105.493452][ T66] default_device_exit_batch (net/core/dev.c:12673) 
[ 105.493792][ T66] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 105.494252][ T66] ops_undo_list (net/core/net_namespace.c:250) 
[ 105.494604][ T66] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 105.494961][ T66] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 105.495325][ T66] cleanup_net (net/core/net_namespace.c:684) 
[ 105.495689][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 105.496040][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 105.496392][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 105.496763][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 105.497118][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 105.497473][ T66] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 105.497838][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 105.498190][ T66] kthread (kernel/kthread.c:464) 
[ 105.498459][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 105.498815][ T66] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 105.499164][ T66] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 105.499523][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 105.499876][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 105.500219][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 105.500555][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 105.500909][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  127.023373][ T1456] ------------[ cut here ]------------
| [ 127.023676][ T1456] WARNING: CPU: 0 PID: 1456 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) 
| [  127.024256][ T1456] Modules linked in: vxlan
| [  127.025158][ T1456] Tainted: [W]=WARN
[  127.025382][ T1456] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 127.025761][ T1456] 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) 
[ 127.026063][ T1456] 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
[  127.027126][ T1456] RSP: 0018:ffffc90002f36ef0 EFLAGS: 00010246
[  127.027498][ T1456] RAX: 0000000000000000 RBX: ffff888005122000 RCX: 0000000000000001
[  127.027945][ T1456] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  127.028384][ T1456] RBP: ffffc90002f36fd8 R08: 0000000000000000 R09: 0000000000000000
[  127.028834][ T1456] R10: ffffc90002f37008 R11: ffffffffac58d1e0 R12: 1ffff920005e6de2
[  127.029273][ T1456] R13: 00000000000005dc R14: ffffc90002f37008 R15: ffff888005122f48
[  127.029742][ T1456] FS:  00007f206c7a4800(0000) GS:ffff8880bed99000(0000) knlGS:0000000000000000
[  127.030260][ T1456] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  127.030642][ T1456] CR2: 00000000004e6890 CR3: 000000000a0cd002 CR4: 0000000000772ef0
[  127.031085][ T1456] PKRU: 55555554
[  127.031305][ T1456] Call Trace:
[  127.031528][ T1456]  <TASK>
[ 127.031691][ T1456] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 127.031988][ T1456] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 127.032301][ T1456] netif_set_mtu (net/core/dev.c:9652) 
[ 127.032594][ T1456] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 127.032916][ T1456] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 127.033140][ T1456] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 127.033448][ T1456] br_add_if (net/bridge/br_if.c:697) 
[ 127.033692][ T1456] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 127.033989][ T1456] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 127.034285][ T1456] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 127.034584][ T1456] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 127.034965][ T1456] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 127.035257][ T1456] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 127.035553][ T1456] ? __kernel_text_address (kernel/extable.c:79) 
[ 127.035871][ T1456] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 127.036167][ T1456] ? __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) 
[ 127.036462][ T1456] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 127.036831][ T1456] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 127.037126][ T1456] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 127.037416][ T1456] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 127.037726][ T1456] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 127.038020][ T1456] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 127.038313][ T1456] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 127.038603][ T1456] ? __create_object (mm/kmemleak.c:771) 
[ 127.038908][ T1456] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 127.039202][ T1456] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 127.039509][ T1456] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 127.039882][ T1456] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 127.040187][ T1456] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 127.040485][ T1456] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 127.040788][ T1456] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 127.041086][ T1456] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 127.041377][ T1456] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 127.041678][ T1456] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 127.041974][ T1456] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 127.042266][ T1456] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 127.042569][ T1456] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 127.042878][ T1456] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 127.043181][ T1456] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 127.043473][ T1456] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 127.043780][ T1456] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 127.044086][ T1456] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 127.044377][ T1456] ? 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) 
[ 127.044686][ T1456] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 127.044982][ T1456] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 127.045274][ T1456] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 127.045571][ T1456] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 127.045876][ T1456] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 127.046168][ T1456] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 127.046466][ T1456] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 127.046777][ T1456] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 127.047068][ T1456] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 127.047448][ T1456] ___sys_sendmsg (net/socket.c:2670) 
[ 127.047748][ T1456] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 127.048038][ T1456] ? __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) 
[ 127.048401][ T1456] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 127.048705][ T1456] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 127.049009][ T1456] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 127.049317][ T1456] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 127.049627][ T1456] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 127.049921][ T1456] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 127.050220][ T1456] __sys_sendmsg (net/socket.c:2700) 
[ 127.050509][ T1456] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 127.050881][ T1456] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 127.051194][ T1456] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 127.051485][ T1456] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 127.051785][ T1456] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  127.052148][ T1456] RIP: 0033:0x7f206c9711e7
[ 127.052450][ T1456] 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)
[  127.053506][ T1456] RSP: 002b:00007ffde93b9ce8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  127.053955][ T1456] RAX: ffffffffffffffda RBX: 00007ffde93ba420 RCX: 00007f206c9711e7
[  127.054393][ T1456] RDX: 0000000000000000 RSI: 00007ffde93b9d50 RDI: 0000000000000005
[  127.054839][ T1456] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  127.055285][ T1456] R10: 0000000005707910 R11: 0000000000000246 R12: 0000000000000003
[  127.055732][ T1456] R13: 00000000686e6fca R14: 0000000000499600 R15: 0000000000000000
| [  128.575509][ T1482] ------------[ cut here ]------------
| [ 128.576009][ T1482] WARNING: CPU: 3 PID: 1482 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) 
| [  128.576594][ T1482] Modules linked in: vxlan
| [  128.577531][ T1482] Tainted: [W]=WARN
[  128.577762][ T1482] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 128.578141][ T1482] 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) 
[ 128.578446][ T1482] 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
[  128.579538][ T1482] RSP: 0018:ffffc90003026ef0 EFLAGS: 00010246
[  128.579923][ T1482] RAX: 0000000000000000 RBX: ffff888005122000 RCX: 0000000000000001
[  128.580378][ T1482] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  128.580831][ T1482] RBP: ffffc90003026fd8 R08: 0000000000000000 R09: 0000000000000000
[  128.581271][ T1482] R10: ffffc90003027008 R11: ffffffffaceceab8 R12: 1ffff92000604de2
[  128.581732][ T1482] R13: 00000000000005aa R14: ffffc90003027008 R15: ffff888005122f48
[  128.582200][ T1482] FS:  00007fc144464800(0000) GS:ffff8880bef19000(0000) knlGS:0000000000000000
[  128.582734][ T1482] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  128.583104][ T1482] CR2: 00000000004e6890 CR3: 00000000122ea002 CR4: 0000000000772ef0
[  128.583556][ T1482] PKRU: 55555554
[  128.583785][ T1482] Call Trace:
[  128.584011][ T1482]  <TASK>
[ 128.584166][ T1482] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 128.584470][ T1482] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 128.584783][ T1482] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 128.585147][ T1482] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 128.585457][ T1482] netif_set_mtu (net/core/dev.c:9652) 
[ 128.585779][ T1482] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 128.586092][ T1482] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 128.586477][ T1482] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 128.586711][ T1482] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 128.587017][ T1482] br_add_if (net/bridge/br_if.c:697) 
[ 128.587257][ T1482] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 128.587558][ T1482] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 128.587870][ T1482] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 128.588171][ T1482] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 128.588549][ T1482] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 128.588853][ T1482] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 128.589145][ T1482] ? __kernel_text_address (kernel/extable.c:79) 
[ 128.589475][ T1482] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 128.589783][ T1482] ? __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) 
[ 128.590089][ T1482] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 128.590458][ T1482] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 128.590763][ T1482] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 128.591056][ T1482] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 128.591348][ T1482] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 128.591650][ T1482] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 128.591944][ T1482] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 128.592239][ T1482] ? __create_object (mm/kmemleak.c:771) 
[ 128.592537][ T1482] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 128.592841][ T1482] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 128.593135][ T1482] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 128.593500][ T1482] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 128.593846][ T1482] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 128.594163][ T1482] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 128.594473][ T1482] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 128.594808][ T1482] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 128.595121][ T1482] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 128.595428][ T1482] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 128.595754][ T1482] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 128.596067][ T1482] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 128.596380][ T1482] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 128.596711][ T1482] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 128.597027][ T1482] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 128.597333][ T1482] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 128.597645][ T1482] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 128.597957][ T1482] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 128.598251][ T1482] ? 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) 
[ 128.598557][ T1482] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 128.598871][ T1482] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 128.599173][ T1482] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 128.599486][ T1482] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 128.599791][ T1482] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 128.600088][ T1482] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 128.600389][ T1482] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 128.600695][ T1482] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 128.600990][ T1482] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 128.601366][ T1482] ___sys_sendmsg (net/socket.c:2670) 
[ 128.601700][ T1482] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 128.601993][ T1482] ? __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) 
[ 128.602362][ T1482] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 128.602676][ T1482] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 128.602984][ T1482] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 128.603295][ T1482] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 128.603591][ T1482] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 128.603901][ T1482] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 128.604203][ T1482] __sys_sendmsg (net/socket.c:2700) 
[ 128.604496][ T1482] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 128.604866][ T1482] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 128.605172][ T1482] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 128.605471][ T1482] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 128.605787][ T1482] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  128.606174][ T1482] RIP: 0033:0x7fc1446311e7
[ 128.606498][ T1482] 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)
[  128.607623][ T1482] RSP: 002b:00007fff3c44ac68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  128.608096][ T1482] RAX: ffffffffffffffda RBX: 00007fff3c44b3a0 RCX: 00007fc1446311e7
[  128.608570][ T1482] RDX: 0000000000000000 RSI: 00007fff3c44acd0 RDI: 0000000000000005
[  128.609042][ T1482] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  128.609538][ T1482] R10: 0000000037236910 R11: 0000000000000246 R12: 0000000000000003
[  128.610012][ T1482] R13: 00000000686e6fcc R14: 0000000000499600 R15: 0000000000000000
| [  132.331169][ T1532] ------------[ cut here ]------------
| [ 132.331471][ T1532] WARNING: CPU: 3 PID: 1532 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) 
| [  132.332068][ T1532] Modules linked in: vxlan
| [  132.332980][ T1532] Tainted: [W]=WARN
[  132.333204][ T1532] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 132.333574][ T1532] 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) 
[ 132.333886][ T1532] 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
[  132.334950][ T1532] RSP: 0018:ffffc900031e6ef0 EFLAGS: 00010246
[  132.335326][ T1532] RAX: 0000000000000000 RBX: ffff8880118f2000 RCX: 0000000000000001
[  132.335778][ T1532] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  132.336226][ T1532] RBP: ffffc900031e6fd8 R08: 0000000000000000 R09: 0000000000000000
[  132.336674][ T1532] R10: ffffc900031e7008 R11: ffffffffac58d1e0 R12: 1ffff9200063cde2
[  132.337126][ T1532] R13: 00000000000005dc R14: ffffc900031e7008 R15: ffff8880118f2f48
[  132.337571][ T1532] FS:  00007f43fe0d1800(0000) GS:ffff8880bef19000(0000) knlGS:0000000000000000
[  132.338127][ T1532] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  132.338502][ T1532] CR2: 00000000004e6898 CR3: 000000000e093002 CR4: 0000000000772ef0
[  132.338959][ T1532] PKRU: 55555554
[  132.339185][ T1532] Call Trace:
[  132.339426][ T1532]  <TASK>
[ 132.339580][ T1532] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 132.339887][ T1532] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 132.340206][ T1532] netif_set_mtu (net/core/dev.c:9652) 
[ 132.340509][ T1532] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 132.340828][ T1532] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 132.341054][ T1532] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 132.341356][ T1532] br_add_if (net/bridge/br_if.c:697) 
[ 132.341599][ T1532] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 132.341907][ T1532] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 132.342214][ T1532] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 132.342516][ T1532] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 132.342898][ T1532] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 132.343192][ T1532] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 132.343488][ T1532] ? __kernel_text_address (kernel/extable.c:79) 
[ 132.343793][ T1532] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 132.344090][ T1532] ? __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) 
[ 132.344393][ T1532] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 132.344766][ T1532] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 132.345061][ T1532] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 132.345352][ T1532] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 132.345667][ T1532] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 132.345962][ T1532] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 132.346258][ T1532] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 132.346555][ T1532] ? __create_object (mm/kmemleak.c:771) 
[ 132.346864][ T1532] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 132.347158][ T1532] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 132.347453][ T1532] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 132.347831][ T1532] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 132.348130][ T1532] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 132.348429][ T1532] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 132.348735][ T1532] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 132.349040][ T1532] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 132.349344][ T1532] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 132.349647][ T1532] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 132.349942][ T1532] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 132.350237][ T1532] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 132.350531][ T1532] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 132.350862][ T1532] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 132.351161][ T1532] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 132.351462][ T1532] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 132.351773][ T1532] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 132.352078][ T1532] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 132.352368][ T1532] ? 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) 
[ 132.352677][ T1532] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 132.352975][ T1532] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 132.353265][ T1532] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 132.353570][ T1532] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 132.353883][ T1532] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 132.354178][ T1532] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 132.354480][ T1532] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 132.354791][ T1532] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 132.355085][ T1532] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 132.355462][ T1532] ___sys_sendmsg (net/socket.c:2670) 
[ 132.355770][ T1532] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 132.356063][ T1532] ? __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) 
[ 132.356428][ T1532] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 132.356740][ T1532] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 132.357039][ T1532] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 132.357337][ T1532] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 132.357643][ T1532] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 132.357946][ T1532] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 132.358250][ T1532] __sys_sendmsg (net/socket.c:2700) 
[ 132.358540][ T1532] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 132.358921][ T1532] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 132.359229][ T1532] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 132.359538][ T1532] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 132.359846][ T1532] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  132.360217][ T1532] RIP: 0033:0x7f43fe29e1e7
[ 132.360519][ T1532] 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)
[  132.361580][ T1532] RSP: 002b:00007ffd1a4b6238 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  132.362037][ T1532] RAX: ffffffffffffffda RBX: 00007ffd1a4b6970 RCX: 00007f43fe29e1e7
[  132.362481][ T1532] RDX: 0000000000000000 RSI: 00007ffd1a4b62a0 RDI: 0000000000000005
[  132.362928][ T1532] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  132.363369][ T1532] R10: 0000000023204910 R11: 0000000000000246 R12: 0000000000000003
[  132.363814][ T1532] R13: 00000000686e6fcf R14: 0000000000499600 R15: 0000000000000000
| [  134.013930][ T1558] ------------[ cut here ]------------
| [ 134.014226][ T1558] WARNING: CPU: 1 PID: 1558 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) 
| [  134.014837][ T1558] Modules linked in: vxlan
| [  134.015745][ T1558] Tainted: [W]=WARN
[  134.015971][ T1558] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 134.016343][ T1558] 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) 
[ 134.016658][ T1558] 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
[  134.017714][ T1558] RSP: 0018:ffffc900032c6ef0 EFLAGS: 00010246
[  134.018088][ T1558] RAX: 0000000000000000 RBX: ffff8880118f2000 RCX: 0000000000000001
[  134.018533][ T1558] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  134.018990][ T1558] RBP: ffffc900032c6fd8 R08: 0000000000000000 R09: 0000000000000000
[  134.019445][ T1558] R10: ffffc900032c7008 R11: ffffffffaceceab8 R12: 1ffff92000658de2
[  134.019895][ T1558] R13: 0000000000000596 R14: ffffc900032c7008 R15: ffff8880118f2f48
[  134.020340][ T1558] FS:  00007fd5a2ac3800(0000) GS:ffff8880bee19000(0000) knlGS:0000000000000000
[  134.020860][ T1558] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  134.021231][ T1558] CR2: 00000000004e6898 CR3: 00000000096b2006 CR4: 0000000000772ef0
[  134.021679][ T1558] PKRU: 55555554
[  134.021902][ T1558] Call Trace:
[  134.022123][ T1558]  <TASK>
[ 134.022283][ T1558] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 134.022583][ T1558] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 134.022913][ T1558] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 134.023283][ T1558] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 134.023579][ T1558] netif_set_mtu (net/core/dev.c:9652) 
[ 134.023880][ T1558] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 134.024183][ T1558] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 134.024556][ T1558] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 134.024787][ T1558] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 134.025090][ T1558] br_add_if (net/bridge/br_if.c:697) 
[ 134.025321][ T1558] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 134.025621][ T1558] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 134.025923][ T1558] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 134.026227][ T1558] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 134.026618][ T1558] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 134.026911][ T1558] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 134.027200][ T1558] ? __kernel_text_address (kernel/extable.c:79) 
[ 134.027494][ T1558] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 134.027808][ T1558] ? __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) 
[ 134.028108][ T1558] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 134.028470][ T1558] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 134.028780][ T1558] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 134.029073][ T1558] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 134.029379][ T1558] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 134.029685][ T1558] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 134.029984][ T1558] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 134.030275][ T1558] ? __create_object (mm/kmemleak.c:771) 
[ 134.030575][ T1558] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 134.030883][ T1558] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 134.031193][ T1558] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 134.031555][ T1558] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 134.031874][ T1558] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 134.032180][ T1558] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 134.032472][ T1558] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 134.032782][ T1558] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 134.033080][ T1558] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 134.033371][ T1558] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 134.033681][ T1558] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 134.033973][ T1558] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 134.034268][ T1558] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 134.034567][ T1558] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 134.034875][ T1558] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 134.035170][ T1558] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 134.035468][ T1558] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 134.035853][ T1558] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 134.036154][ T1558] ? 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) 
[ 134.036452][ T1558] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 134.036757][ T1558] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 134.037051][ T1558] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 134.037353][ T1558] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 134.037658][ T1558] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 134.037967][ T1558] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 134.038275][ T1558] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 134.038571][ T1558] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 134.038871][ T1558] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 134.039253][ T1558] ___sys_sendmsg (net/socket.c:2670) 
[ 134.039557][ T1558] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 134.039864][ T1558] ? __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) 
[ 134.040238][ T1558] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 134.040534][ T1558] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 134.040838][ T1558] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 134.041140][ T1558] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 134.041436][ T1558] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 134.041739][ T1558] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 134.042040][ T1558] __sys_sendmsg (net/socket.c:2700) 
[ 134.042333][ T1558] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 134.042714][ T1558] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 134.043022][ T1558] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 134.043320][ T1558] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 134.043632][ T1558] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  134.043996][ T1558] RIP: 0033:0x7fd5a2c901e7
[ 134.044299][ T1558] 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)
[  134.045367][ T1558] RSP: 002b:00007ffd38dc5bd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  134.045822][ T1558] RAX: ffffffffffffffda RBX: 00007ffd38dc6310 RCX: 00007fd5a2c901e7
[  134.046266][ T1558] RDX: 0000000000000000 RSI: 00007ffd38dc5c40 RDI: 0000000000000005
[  134.046718][ T1558] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  134.047157][ T1558] R10: 000000002a7ac910 R11: 0000000000000246 R12: 0000000000000003
[  134.047597][ T1558] R13: 00000000686e6fd1 R14: 0000000000499600 R15: 0000000000000000
| [  137.628251][ T1608] ------------[ cut here ]------------
| [ 137.628544][ T1608] WARNING: CPU: 1 PID: 1608 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) 
| [  137.630066][ T1608] Modules linked in: vxlan
| [  137.630980][ T1608] Tainted: [W]=WARN
[  137.631202][ T1608] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 137.631575][ T1608] 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) 
[ 137.631902][ T1608] 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
[  137.632969][ T1608] RSP: 0018:ffffc90003446ef0 EFLAGS: 00010246
[  137.633342][ T1608] RAX: 0000000000000000 RBX: ffff88800f162000 RCX: 0000000000000001
[  137.633788][ T1608] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  137.634232][ T1608] RBP: ffffc90003446fd8 R08: 0000000000000000 R09: 0000000000000000
[  137.634681][ T1608] R10: ffffc90003447008 R11: ffffffffac58d1e0 R12: 1ffff92000688de2
[  137.635133][ T1608] R13: 00000000000005dc R14: ffffc90003447008 R15: ffff88800f162f48
[  137.635576][ T1608] FS:  00007f6a76ed8800(0000) GS:ffff8880bee19000(0000) knlGS:0000000000000000
[  137.636111][ T1608] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  137.636486][ T1608] CR2: 00000000004e6890 CR3: 000000000f2e1006 CR4: 0000000000772ef0
[  137.636937][ T1608] PKRU: 55555554
[  137.637164][ T1608] Call Trace:
[  137.637387][ T1608]  <TASK>
[ 137.637544][ T1608] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 137.637849][ T1608] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 137.638159][ T1608] netif_set_mtu (net/core/dev.c:9652) 
[ 137.638461][ T1608] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 137.638778][ T1608] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 137.639003][ T1608] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 137.639318][ T1608] br_add_if (net/bridge/br_if.c:697) 
[ 137.639553][ T1608] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 137.639862][ T1608] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 137.640162][ T1608] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 137.640460][ T1608] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 137.640848][ T1608] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 137.641144][ T1608] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 137.641437][ T1608] ? __kernel_text_address (kernel/extable.c:79) 
[ 137.641752][ T1608] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 137.642053][ T1608] ? __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) 
[ 137.642355][ T1608] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 137.642734][ T1608] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 137.643034][ T1608] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 137.643329][ T1608] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 137.643644][ T1608] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 137.643942][ T1608] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 137.644237][ T1608] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 137.644530][ T1608] ? __create_object (mm/kmemleak.c:771) 
[ 137.644834][ T1608] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 137.645136][ T1608] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 137.645430][ T1608] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 137.645809][ T1608] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 137.646130][ T1608] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 137.646450][ T1608] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 137.646773][ T1608] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 137.647095][ T1608] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 137.647471][ T1608] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 137.647983][ T1608] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 137.648501][ T1608] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 137.648993][ T1608] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 137.649321][ T1608] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 137.649653][ T1608] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 137.649961][ T1608] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 137.650259][ T1608] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 137.650574][ T1608] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 137.650891][ T1608] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 137.651185][ T1608] ? 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) 
[ 137.651490][ T1608] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 137.651813][ T1608] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 137.652121][ T1608] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 137.652453][ T1608] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 137.652784][ T1608] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 137.653092][ T1608] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 137.653418][ T1608] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 137.653742][ T1608] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 137.654051][ T1608] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 137.654464][ T1608] ___sys_sendmsg (net/socket.c:2670) 
[ 137.654783][ T1608] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 137.655097][ T1608] ? __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) 
[ 137.655495][ T1608] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 137.655828][ T1608] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 137.656143][ T1608] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 137.656482][ T1608] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 137.656803][ T1608] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 137.657122][ T1608] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 137.657482][ T1608] __sys_sendmsg (net/socket.c:2700) 
[ 137.657823][ T1608] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 137.658201][ T1608] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 137.658523][ T1608] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 137.658846][ T1608] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 137.659162][ T1608] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  137.659559][ T1608] RIP: 0033:0x7f6a770a51e7
[ 137.659905][ T1608] 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)
[  137.661027][ T1608] RSP: 002b:00007ffc2c6bf788 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  137.661495][ T1608] RAX: ffffffffffffffda RBX: 00007ffc2c6bfec0 RCX: 00007f6a770a51e7
[  137.661970][ T1608] RDX: 0000000000000000 RSI: 00007ffc2c6bf7f0 RDI: 0000000000000005
[  137.662437][ T1608] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  137.662910][ T1608] R10: 000000003969b910 R11: 0000000000000246 R12: 0000000000000003
[  137.663375][ T1608] R13: 00000000686e6fd5 R14: 0000000000499600 R15: 0000000000000000
| [  139.306409][ T1635] ------------[ cut here ]------------
| [ 139.306728][ T1635] WARNING: CPU: 3 PID: 1635 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) 
| [  139.307323][ T1635] Modules linked in: vxlan
| [  139.308226][ T1635] Tainted: [W]=WARN
[  139.308452][ T1635] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 139.309970][ T1635] 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) 
[ 139.310286][ T1635] 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
[  139.311338][ T1635] RSP: 0018:ffffc900034c6ef0 EFLAGS: 00010246
[  139.311720][ T1635] RAX: 0000000000000000 RBX: ffff88800f162000 RCX: 0000000000000001
[  139.312166][ T1635] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  139.312617][ T1635] RBP: ffffc900034c6fd8 R08: 0000000000000000 R09: 0000000000000000
[  139.313067][ T1635] R10: ffffc900034c7008 R11: ffffffffaceceab8 R12: 1ffff92000698de2
[  139.313552][ T1635] R13: 00000000000005aa R14: ffffc900034c7008 R15: ffff88800f162f48
[  139.314027][ T1635] FS:  00007fbe1949b800(0000) GS:ffff8880bef19000(0000) knlGS:0000000000000000
[  139.314546][ T1635] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  139.314926][ T1635] CR2: 00000000004e6890 CR3: 000000001050a003 CR4: 0000000000772ef0
[  139.315370][ T1635] PKRU: 55555554
[  139.315596][ T1635] Call Trace:
[  139.315822][ T1635]  <TASK>
[ 139.315975][ T1635] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 139.316282][ T1635] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 139.316579][ T1635] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 139.316952][ T1635] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 139.317264][ T1635] netif_set_mtu (net/core/dev.c:9652) 
[ 139.317572][ T1635] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 139.317890][ T1635] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 139.318259][ T1635] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 139.318493][ T1635] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 139.318821][ T1635] br_add_if (net/bridge/br_if.c:697) 
[ 139.319057][ T1635] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 139.319360][ T1635] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 139.319689][ T1635] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 139.319989][ T1635] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 139.320362][ T1635] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 139.320685][ T1635] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 139.320993][ T1635] ? __kernel_text_address (kernel/extable.c:79) 
[ 139.321306][ T1635] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 139.321630][ T1635] ? __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) 
[ 139.321944][ T1635] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 139.322325][ T1635] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 139.322645][ T1635] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 139.322963][ T1635] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 139.323271][ T1635] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 139.323580][ T1635] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 139.323901][ T1635] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 139.324209][ T1635] ? __create_object (mm/kmemleak.c:771) 
[ 139.324519][ T1635] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 139.324836][ T1635] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 139.325148][ T1635] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 139.325538][ T1635] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 139.325863][ T1635] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 139.326178][ T1635] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 139.326502][ T1635] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 139.326830][ T1635] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 139.327138][ T1635] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 139.327445][ T1635] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 139.327767][ T1635] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 139.328081][ T1635] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 139.328395][ T1635] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 139.328720][ T1635] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 139.329040][ T1635] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 139.329366][ T1635] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 139.329691][ T1635] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 139.330014][ T1635] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 139.330329][ T1635] ? 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) 
[ 139.330639][ T1635] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 139.330938][ T1635] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 139.331229][ T1635] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 139.331533][ T1635] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 139.331841][ T1635] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 139.332136][ T1635] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 139.332444][ T1635] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 139.332751][ T1635] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 139.333044][ T1635] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 139.333422][ T1635] ___sys_sendmsg (net/socket.c:2670) 
[ 139.333724][ T1635] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 139.334017][ T1635] ? __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) 
[ 139.334387][ T1635] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 139.334703][ T1635] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 139.335011][ T1635] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 139.335315][ T1635] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 139.335629][ T1635] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 139.335934][ T1635] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 139.336235][ T1635] __sys_sendmsg (net/socket.c:2700) 
[ 139.336536][ T1635] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 139.336931][ T1635] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 139.337238][ T1635] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 139.337547][ T1635] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 139.337865][ T1635] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  139.338249][ T1635] RIP: 0033:0x7fbe196681e7
[ 139.338558][ T1635] 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)
[  139.339642][ T1635] RSP: 002b:00007ffc5d9ba2d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  139.340088][ T1635] RAX: ffffffffffffffda RBX: 00007ffc5d9baa10 RCX: 00007fbe196681e7
[  139.340532][ T1635] RDX: 0000000000000000 RSI: 00007ffc5d9ba340 RDI: 0000000000000005
[  139.341014][ T1635] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  139.341461][ T1635] R10: 00000000306e7910 R11: 0000000000000246 R12: 0000000000000003
[  139.341910][ T1635] R13: 00000000686e6fd6 R14: 0000000000499600 R15: 0000000000000000
| [  143.134901][ T1686] ------------[ cut here ]------------
| [ 143.135199][ T1686] WARNING: CPU: 0 PID: 1686 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) 
| [  143.135833][ T1686] Modules linked in: vxlan
| [  143.136769][ T1686] Tainted: [W]=WARN
[  143.136995][ T1686] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 143.137374][ T1686] 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) 
[ 143.137700][ T1686] 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
[  143.138787][ T1686] RSP: 0018:ffffc90003666ef0 EFLAGS: 00010246
[  143.139160][ T1686] RAX: 0000000000000000 RBX: ffff888004e82000 RCX: 0000000000000001
[  143.139655][ T1686] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  143.140101][ T1686] RBP: ffffc90003666fd8 R08: 0000000000000000 R09: 0000000000000000
[  143.140561][ T1686] R10: ffffc90003667008 R11: ffffffffac58d1e0 R12: 1ffff920006ccde2
[  143.141013][ T1686] R13: 00000000000005dc R14: ffffc90003667008 R15: ffff888004e82f48
[  143.141471][ T1686] FS:  00007fc4cb342800(0000) GS:ffff8880bed99000(0000) knlGS:0000000000000000
[  143.141997][ T1686] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  143.142370][ T1686] CR2: 00000000004e6898 CR3: 0000000009a42003 CR4: 0000000000772ef0
[  143.142843][ T1686] PKRU: 55555554
[  143.143066][ T1686] Call Trace:
[  143.143286][ T1686]  <TASK>
[ 143.143449][ T1686] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 143.143772][ T1686] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 143.144087][ T1686] netif_set_mtu (net/core/dev.c:9652) 
[ 143.144381][ T1686] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 143.144720][ T1686] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 143.144945][ T1686] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 143.145244][ T1686] br_add_if (net/bridge/br_if.c:697) 
[ 143.145488][ T1686] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 143.145791][ T1686] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 143.146104][ T1686] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 143.146413][ T1686] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 143.146807][ T1686] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 143.147102][ T1686] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 143.147392][ T1686] ? __kernel_text_address (kernel/extable.c:79) 
[ 143.147729][ T1686] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 143.148029][ T1686] ? __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) 
[ 143.148331][ T1686] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 143.148720][ T1686] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 143.149019][ T1686] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 143.149318][ T1686] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 143.149642][ T1686] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 143.149937][ T1686] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 143.150232][ T1686] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 143.150523][ T1686] ? __create_object (mm/kmemleak.c:771) 
[ 143.150858][ T1686] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 143.151157][ T1686] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 143.151454][ T1686] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 143.151851][ T1686] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 143.152156][ T1686] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 143.152456][ T1686] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 143.152776][ T1686] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 143.153078][ T1686] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 143.153378][ T1686] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 143.153693][ T1686] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 143.153992][ T1686] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 143.154286][ T1686] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 143.154581][ T1686] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 143.154903][ T1686] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 143.155205][ T1686] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 143.155502][ T1686] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 143.155832][ T1686] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 143.156140][ T1686] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 143.156431][ T1686] ? 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) 
[ 143.156746][ T1686] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 143.157044][ T1686] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 143.157335][ T1686] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 143.157647][ T1686] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 143.157970][ T1686] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 143.158265][ T1686] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 143.158567][ T1686] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 143.158888][ T1686] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 143.159181][ T1686] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 143.159570][ T1686] ___sys_sendmsg (net/socket.c:2670) 
[ 143.159906][ T1686] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 143.160204][ T1686] ? __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) 
[ 143.160572][ T1686] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 143.160891][ T1686] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 143.161189][ T1686] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 143.161490][ T1686] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 143.161799][ T1686] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 143.162203][ T1686] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 143.162510][ T1686] __sys_sendmsg (net/socket.c:2700) 
[ 143.162819][ T1686] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 143.163195][ T1686] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 143.163504][ T1686] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 143.163822][ T1686] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 143.164138][ T1686] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  143.164503][ T1686] RIP: 0033:0x7fc4cb50f1e7
[ 143.164824][ T1686] 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)
[  143.165905][ T1686] RSP: 002b:00007fffe1587648 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  143.166357][ T1686] RAX: ffffffffffffffda RBX: 00007fffe1587d80 RCX: 00007fc4cb50f1e7
[  143.166814][ T1686] RDX: 0000000000000000 RSI: 00007fffe15876b0 RDI: 0000000000000005
[  143.167274][ T1686] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  143.167737][ T1686] R10: 000000000ff09910 R11: 0000000000000246 R12: 0000000000000003
[  143.168192][ T1686] R13: 00000000686e6fda R14: 0000000000499600 R15: 0000000000000000
| [  144.793916][ T1712] ------------[ cut here ]------------
| [ 144.794237][ T1712] WARNING: CPU: 2 PID: 1712 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) 
| [  144.794843][ T1712] Modules linked in: vxlan
| [  144.795778][ T1712] Tainted: [W]=WARN
[  144.796020][ T1712] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 144.796399][ T1712] 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) 
[ 144.796723][ T1712] 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
[  144.797787][ T1712] RSP: 0018:ffffc90003706ef0 EFLAGS: 00010246
[  144.798177][ T1712] RAX: 0000000000000000 RBX: ffff888004e82000 RCX: 0000000000000001
[  144.798636][ T1712] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  144.799091][ T1712] RBP: ffffc90003706fd8 R08: 0000000000000000 R09: 0000000000000000
[  144.799560][ T1712] R10: ffffc90003707008 R11: ffffffffac58d1e0 R12: 1ffff920006e0de2
[  144.800027][ T1712] R13: 0000000000000596 R14: ffffc90003707008 R15: ffff888004e82f48
[  144.800475][ T1712] FS:  00007f793f12e800(0000) GS:ffff8880bee99000(0000) knlGS:0000000000000000
[  144.801009][ T1712] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  144.801395][ T1712] CR2: 00000000004e6898 CR3: 0000000011ab7003 CR4: 0000000000772ef0
[  144.801876][ T1712] PKRU: 55555554
[  144.802116][ T1712] Call Trace:
[  144.802347][ T1712]  <TASK>
[ 144.802511][ T1712] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 144.802829][ T1712] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 144.803148][ T1712] netif_set_mtu (net/core/dev.c:9652) 
[ 144.803457][ T1712] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 144.803788][ T1712] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 144.804029][ T1712] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 144.804349][ T1712] br_add_if (net/bridge/br_if.c:697) 
[ 144.804598][ T1712] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 144.804918][ T1712] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 144.805229][ T1712] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 144.805540][ T1712] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 144.805936][ T1712] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 144.806242][ T1712] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 144.806556][ T1712] ? __kernel_text_address (kernel/extable.c:79) 
[ 144.806873][ T1712] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 144.807186][ T1712] ? __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) 
[ 144.807497][ T1712] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 144.807883][ T1712] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 144.808191][ T1712] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 144.808494][ T1712] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 144.808811][ T1712] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 144.809120][ T1712] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 144.809440][ T1712] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 144.809754][ T1712] ? __create_object (mm/kmemleak.c:771) 
[ 144.810062][ T1712] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 144.810370][ T1712] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 144.810690][ T1712] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 144.811065][ T1712] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 144.811384][ T1712] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 144.811710][ T1712] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 144.812017][ T1712] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 144.812327][ T1712] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 144.812643][ T1712] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 144.812949][ T1712] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 144.813259][ T1712] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 144.813562][ T1712] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 144.813886][ T1712] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 144.814196][ T1712] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 144.814508][ T1712] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 144.814824][ T1712] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 144.815135][ T1712] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 144.815452][ T1712] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 144.815764][ T1712] ? 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) 
[ 144.816084][ T1712] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 144.816392][ T1712] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 144.816705][ T1712] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 144.817022][ T1712] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 144.817331][ T1712] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 144.817648][ T1712] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 144.817959][ T1712] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 144.818273][ T1712] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 144.818578][ T1712] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 144.818979][ T1712] ___sys_sendmsg (net/socket.c:2670) 
[ 144.819286][ T1712] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 144.819596][ T1712] ? __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) 
[ 144.819985][ T1712] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 144.820303][ T1712] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 144.820648][ T1712] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 144.820981][ T1712] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 144.821303][ T1712] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 144.821643][ T1712] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 144.821977][ T1712] __sys_sendmsg (net/socket.c:2700) 
[ 144.822282][ T1712] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 144.822672][ T1712] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 144.822997][ T1712] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 144.823310][ T1712] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 144.823632][ T1712] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  144.824015][ T1712] RIP: 0033:0x7f793f2fb1e7
[ 144.824330][ T1712] 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)
[  144.825410][ T1712] RSP: 002b:00007ffdb63b4a78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  144.825880][ T1712] RAX: ffffffffffffffda RBX: 00007ffdb63b51b0 RCX: 00007f793f2fb1e7
[  144.826334][ T1712] RDX: 0000000000000000 RSI: 00007ffdb63b4ae0 RDI: 0000000000000005
[  144.826799][ T1712] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  144.827261][ T1712] R10: 0000000025592910 R11: 0000000000000246 R12: 0000000000000003
[  144.827726][ T1712] R13: 00000000686e6fdc R14: 0000000000499600 R15: 0000000000000000
| [  149.538965][   T66] ------------[ cut here ]------------
| [ 149.539286][ T66] WARNING: CPU: 3 PID: 66 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) 
| [  149.539851][   T66] Modules linked in: vxlan
| [  149.540891][   T66] Tainted: [W]=WARN
[  149.541127][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  149.541541][   T66] Workqueue: netns cleanup_net
[ 149.541884][ T66] 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) 
[ 149.542207][ T66] 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
[  149.543334][   T66] RSP: 0018:ffffc90000477360 EFLAGS: 00010246
[  149.543734][   T66] RAX: 0000000000000000 RBX: ffff888004e82000 RCX: 0000000000000001
[  149.544203][   T66] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  149.544688][   T66] RBP: ffffc90000477450 R08: 0000000000000000 R09: 0000000000000000
[  149.545158][   T66] R10: ffffc90000477480 R11: ffffffffac58d1e0 R12: 1ffff9200008ee70
[  149.545652][   T66] R13: 00000000000005dc R14: ffffc90000477480 R15: ffff888004e82f48
[  149.546135][   T66] FS:  0000000000000000(0000) GS:ffff8880bef19000(0000) knlGS:0000000000000000
[  149.546904][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  149.547317][   T66] CR2: 00007f44fbfd52ba CR3: 000000006874a005 CR4: 0000000000772ef0
[  149.548121][   T66] PKRU: 55555554
[  149.548363][   T66] Call Trace:
[  149.548761][   T66]  <TASK>
[ 149.548920][ T66] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 149.549238][ T66] ? __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) 
[ 149.549862][ T66] ? br_del_if (net/bridge/br_if.c:742) 
[ 149.550119][ T66] ? br_device_event (net/bridge/br.c:141) 
[ 149.550438][ T66] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 149.551004][ T66] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 149.551314][ T66] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 149.551708][ T66] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 149.552092][ T66] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 149.552419][ T66] ? cleanup_net (net/core/net_namespace.c:684) 
[ 149.552747][ T66] ? process_one_work (kernel/workqueue.c:3238) 
[ 149.553071][ T66] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 149.553392][ T66] ? kthread (kernel/kthread.c:464) 
[ 149.553652][ T66] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 149.553968][ T66] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 149.554300][ T66] netif_set_mtu (net/core/dev.c:9652) 
[ 149.554632][ T66] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 149.554963][ T66] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 149.555214][ T66] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 149.555528][ T66] br_del_if (net/bridge/br_if.c:743) 
[ 149.555774][ T66] br_device_event (net/bridge/br.c:141) 
[ 149.556083][ T66] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 149.556421][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 149.556763][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 149.557170][ T66] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 149.557598][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 149.557994][ T66] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 149.558322][ T66] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 149.558734][ T66] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 149.559139][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 149.559470][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 149.559894][ T66] ? 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) 
[ 149.560208][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 149.560602][ T66] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 149.560992][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 149.561376][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 149.561799][ T66] default_device_exit_batch (net/core/dev.c:12673) 
[ 149.562121][ T66] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 149.562524][ T66] ops_undo_list (net/core/net_namespace.c:250) 
[ 149.562868][ T66] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 149.563177][ T66] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 149.563497][ T66] cleanup_net (net/core/net_namespace.c:684) 
[ 149.563826][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 149.564142][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 149.564459][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 149.564788][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 149.565128][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 149.565484][ T66] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 149.565810][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 149.566122][ T66] kthread (kernel/kthread.c:464) 
[ 149.566354][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 149.566695][ T66] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 149.567054][ T66] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 149.567374][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 149.567693][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 149.568013][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 149.568326][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 149.568661][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  149.600360][   T66] ------------[ cut here ]------------
| [ 149.600710][ T66] WARNING: CPU: 1 PID: 66 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) 
| [  149.601249][   T66] Modules linked in: vxlan
| [  149.602279][   T66] Tainted: [W]=WARN
[  149.602512][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  149.602910][   T66] Workqueue: netns cleanup_net
[ 149.603241][ T66] 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) 
[ 149.603639][ T66] 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
[  149.604754][   T66] RSP: 0018:ffffc90000477360 EFLAGS: 00010246
[  149.605145][   T66] RAX: 0000000000000000 RBX: ffff88800f162000 RCX: 0000000000000001
[  149.605627][   T66] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  149.606085][   T66] RBP: ffffc90000477450 R08: 0000000000000000 R09: 0000000000000000
[  149.606552][   T66] R10: ffffc90000477480 R11: ffffffffac58d1e0 R12: 1ffff9200008ee70
[  149.607021][   T66] R13: 00000000000005dc R14: ffffc90000477480 R15: ffff88800f162f48
[  149.607491][   T66] FS:  0000000000000000(0000) GS:ffff8880bee19000(0000) knlGS:0000000000000000
[  149.608040][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  149.608430][   T66] CR2: 00007f44fc0f6810 CR3: 000000006874a001 CR4: 0000000000772ef0
[  149.608912][   T66] PKRU: 55555554
[  149.609143][   T66] Call Trace:
[  149.609397][   T66]  <TASK>
[ 149.609553][ T66] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 149.609869][ T66] ? __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) 
[ 149.610257][ T66] ? br_del_if (net/bridge/br_if.c:742) 
[ 149.610492][ T66] ? br_device_event (net/bridge/br.c:141) 
[ 149.610814][ T66] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 149.611120][ T66] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 149.611431][ T66] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 149.611833][ T66] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 149.612209][ T66] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 149.612510][ T66] ? cleanup_net (net/core/net_namespace.c:684) 
[ 149.612830][ T66] ? process_one_work (kernel/workqueue.c:3238) 
[ 149.613134][ T66] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 149.613438][ T66] ? kthread (kernel/kthread.c:464) 
[ 149.613677][ T66] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 149.613994][ T66] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 149.614310][ T66] netif_set_mtu (net/core/dev.c:9652) 
[ 149.614628][ T66] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 149.614955][ T66] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 149.615187][ T66] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 149.615494][ T66] br_del_if (net/bridge/br_if.c:743) 
[ 149.615734][ T66] br_device_event (net/bridge/br.c:141) 
[ 149.616047][ T66] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 149.616367][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 149.616696][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 149.617091][ T66] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 149.617489][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 149.617890][ T66] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 149.618215][ T66] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 149.618628][ T66] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 149.619031][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 149.619403][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 149.619804][ T66] ? 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) 
[ 149.620138][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 149.620518][ T66] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 149.620914][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 149.621303][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 149.621707][ T66] default_device_exit_batch (net/core/dev.c:12673) 
[ 149.622017][ T66] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 149.622409][ T66] ops_undo_list (net/core/net_namespace.c:250) 
[ 149.622732][ T66] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 149.623035][ T66] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 149.623358][ T66] cleanup_net (net/core/net_namespace.c:684) 
[ 149.623732][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 149.624049][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 149.624370][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 149.624738][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 149.625056][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 149.625384][ T66] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 149.625722][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 149.626037][ T66] kthread (kernel/kthread.c:464) 
[ 149.626267][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 149.626569][ T66] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 149.626894][ T66] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 149.627203][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 149.627506][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 149.627838][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 149.628143][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 149.628520][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  171.330429][ T1953] ------------[ cut here ]------------
| [ 171.330779][ T1953] WARNING: CPU: 2 PID: 1953 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) 
| [  171.331371][ T1953] Modules linked in: vxlan
| [  171.332313][ T1953] Tainted: [W]=WARN
[  171.332553][ T1953] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 171.332952][ T1953] 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) 
[ 171.333270][ T1953] 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
[  171.334380][ T1953] RSP: 0018:ffffc90004186ef0 EFLAGS: 00010246
[  171.334785][ T1953] RAX: 0000000000000000 RBX: ffff88801177a000 RCX: 0000000000000001
[  171.335243][ T1953] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  171.335711][ T1953] RBP: ffffc90004186fd8 R08: 0000000000000000 R09: 0000000000000000
[  171.336166][ T1953] R10: ffffc90004187008 R11: ffffffffac58d1e0 R12: 1ffff92000830de2
[  171.336638][ T1953] R13: 00000000000005dc R14: ffffc90004187008 R15: ffff88801177af48
[  171.337126][ T1953] FS:  00007f646c5b6800(0000) GS:ffff8880bee99000(0000) knlGS:0000000000000000
[  171.337695][ T1953] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  171.338088][ T1953] CR2: 00000000004e6890 CR3: 000000000ee23004 CR4: 0000000000772ef0
[  171.338544][ T1953] PKRU: 55555554
[  171.338792][ T1953] Call Trace:
[  171.339026][ T1953]  <TASK>
[ 171.339191][ T1953] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 171.339521][ T1953] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 171.339864][ T1953] netif_set_mtu (net/core/dev.c:9652) 
[ 171.340187][ T1953] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 171.340515][ T1953] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 171.340767][ T1953] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 171.341085][ T1953] br_add_if (net/bridge/br_if.c:697) 
[ 171.341333][ T1953] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 171.341661][ T1953] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 171.341981][ T1953] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 171.342292][ T1953] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 171.342708][ T1953] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 171.343024][ T1953] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 171.343336][ T1953] ? __kernel_text_address (kernel/extable.c:79) 
[ 171.343712][ T1953] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 171.344028][ T1953] ? __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) 
[ 171.344337][ T1953] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 171.344733][ T1953] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 171.345040][ T1953] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 171.345353][ T1953] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 171.345684][ T1953] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 171.345996][ T1953] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 171.346302][ T1953] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 171.346605][ T1953] ? __create_object (mm/kmemleak.c:771) 
[ 171.346924][ T1953] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 171.347233][ T1953] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 171.347552][ T1953] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 171.347940][ T1953] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 171.348255][ T1953] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 171.348566][ T1953] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 171.348881][ T1953] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 171.349194][ T1953] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 171.349562][ T1953] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 171.349889][ T1953] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 171.350213][ T1953] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 171.350525][ T1953] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 171.350846][ T1953] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 171.351165][ T1953] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 171.351493][ T1953] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 171.351824][ T1953] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 171.352134][ T1953] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 171.352457][ T1953] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 171.352772][ T1953] ? 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) 
[ 171.353079][ T1953] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 171.353388][ T1953] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 171.353729][ T1953] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 171.354051][ T1953] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 171.354378][ T1953] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 171.354719][ T1953] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 171.355054][ T1953] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 171.355381][ T1953] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 171.355712][ T1953] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 171.356123][ T1953] ___sys_sendmsg (net/socket.c:2670) 
[ 171.356441][ T1953] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 171.356774][ T1953] ? __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) 
[ 171.357184][ T1953] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 171.357514][ T1953] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 171.357864][ T1953] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 171.358197][ T1953] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 171.358519][ T1953] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 171.358856][ T1953] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 171.359187][ T1953] __sys_sendmsg (net/socket.c:2700) 
[ 171.359519][ T1953] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 171.359938][ T1953] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 171.360278][ T1953] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 171.360605][ T1953] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 171.360942][ T1953] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  171.361338][ T1953] RIP: 0033:0x7f646c7831e7
[ 171.361697][ T1953] 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)
[  171.362833][ T1953] RSP: 002b:00007ffdd59b5ef8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  171.363313][ T1953] RAX: ffffffffffffffda RBX: 00007ffdd59b6630 RCX: 00007f646c7831e7
[  171.363798][ T1953] RDX: 0000000000000000 RSI: 00007ffdd59b5f60 RDI: 0000000000000005
[  171.364280][ T1953] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  171.364767][ T1953] R10: 000000002a2e4910 R11: 0000000000000246 R12: 0000000000000003
[  171.365243][ T1953] R13: 00000000686e6ff6 R14: 0000000000499600 R15: 0000000000000000
| [  173.013338][ T1979] ------------[ cut here ]------------
| [ 173.013663][ T1979] WARNING: CPU: 3 PID: 1979 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) 
| [  173.014279][ T1979] Modules linked in: vxlan
| [  173.015227][ T1979] Tainted: [W]=WARN
[  173.015455][ T1979] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 173.015856][ T1979] 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) 
[ 173.016161][ T1979] 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
[  173.017238][ T1979] RSP: 0018:ffffc90004246ef0 EFLAGS: 00010246
[  173.017654][ T1979] RAX: 0000000000000000 RBX: ffff88801177a000 RCX: 0000000000000001
[  173.018112][ T1979] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  173.018556][ T1979] RBP: ffffc90004246fd8 R08: 0000000000000000 R09: 0000000000000000
[  173.019279][ T1979] R10: ffffc90004247008 R11: ffffffffaceceab8 R12: 1ffff92000848de2
[  173.019813][ T1979] R13: 00000000000005aa R14: ffffc90004247008 R15: ffff88801177af48
[  173.020274][ T1979] FS:  00007f6dcf94f800(0000) GS:ffff8880bef19000(0000) knlGS:0000000000000000
[  173.020813][ T1979] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  173.021317][ T1979] CR2: 00000000004e6890 CR3: 000000000c94d002 CR4: 0000000000772ef0
[  173.021798][ T1979] PKRU: 55555554
[  173.022029][ T1979] Call Trace:
[  173.022257][ T1979]  <TASK>
[ 173.022422][ T1979] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 173.022754][ T1979] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 173.023052][ T1979] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 173.023445][ T1979] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 173.023757][ T1979] netif_set_mtu (net/core/dev.c:9652) 
[ 173.024059][ T1979] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 173.024376][ T1979] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 173.024779][ T1979] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 173.025034][ T1979] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 173.025332][ T1979] br_add_if (net/bridge/br_if.c:697) 
[ 173.025565][ T1979] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 173.025878][ T1979] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 173.026209][ T1979] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 173.026514][ T1979] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 173.026951][ T1979] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 173.027286][ T1979] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 173.027600][ T1979] ? __kernel_text_address (kernel/extable.c:79) 
[ 173.027951][ T1979] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 173.028251][ T1979] ? __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) 
[ 173.028564][ T1979] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 173.028961][ T1979] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 173.029286][ T1979] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 173.029719][ T1979] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 173.030014][ T1979] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 173.030317][ T1979] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 173.030655][ T1979] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 173.030974][ T1979] ? __create_object (mm/kmemleak.c:771) 
[ 173.031269][ T1979] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 173.031567][ T1979] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 173.031882][ T1979] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 173.032246][ T1979] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 173.032547][ T1979] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 173.032854][ T1979] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 173.033147][ T1979] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 173.033463][ T1979] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 173.033766][ T1979] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 173.034060][ T1979] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 173.034391][ T1979] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 173.034723][ T1979] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 173.035020][ T1979] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 173.035317][ T1979] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 173.035630][ T1979] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 173.035924][ T1979] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 173.036217][ T1979] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 173.036531][ T1979] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 173.036861][ T1979] ? 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) 
[ 173.037164][ T1979] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 173.037480][ T1979] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 173.037813][ T1979] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 173.038134][ T1979] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 173.038456][ T1979] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 173.038793][ T1979] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 173.039104][ T1979] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 173.039430][ T1979] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 173.039739][ T1979] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 173.040135][ T1979] ___sys_sendmsg (net/socket.c:2670) 
[ 173.040441][ T1979] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 173.040756][ T1979] ? __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) 
[ 173.041143][ T1979] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 173.041441][ T1979] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 173.041765][ T1979] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 173.042072][ T1979] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 173.042382][ T1979] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 173.042713][ T1979] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 173.043028][ T1979] __sys_sendmsg (net/socket.c:2700) 
[ 173.043322][ T1979] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 173.043704][ T1979] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 173.044015][ T1979] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 173.044322][ T1979] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 173.044640][ T1979] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  173.045049][ T1979] RIP: 0033:0x7f6dcfb1c1e7
[ 173.045384][ T1979] 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)
[  173.046561][ T1979] RSP: 002b:00007ffd153dfc88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  173.047040][ T1979] RAX: ffffffffffffffda RBX: 00007ffd153e03c0 RCX: 00007f6dcfb1c1e7
[  173.047504][ T1979] RDX: 0000000000000000 RSI: 00007ffd153dfcf0 RDI: 0000000000000005
[  173.047960][ T1979] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  173.048402][ T1979] R10: 000000003f8fa910 R11: 0000000000000246 R12: 0000000000000003
[  173.048848][ T1979] R13: 00000000686e6ff8 R14: 0000000000499600 R15: 0000000000000000
| [  176.891456][ T2029] ------------[ cut here ]------------
| [ 176.891765][ T2029] WARNING: CPU: 0 PID: 2029 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) 
| [  176.892352][ T2029] Modules linked in: vxlan
| [  176.893270][ T2029] Tainted: [W]=WARN
[  176.893496][ T2029] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 176.894527][ T2029] 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) 
[ 176.894842][ T2029] 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
[  176.895909][ T2029] RSP: 0018:ffffc900043c6ef0 EFLAGS: 00010246
[  176.896284][ T2029] RAX: 0000000000000000 RBX: ffff888009b9a000 RCX: 0000000000000001
[  176.896737][ T2029] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  176.897180][ T2029] RBP: ffffc900043c6fd8 R08: 0000000000000000 R09: 0000000000000000
[  176.897627][ T2029] R10: ffffc900043c7008 R11: ffffffffac58d1e0 R12: 1ffff92000878de2
[  176.898078][ T2029] R13: 00000000000005dc R14: ffffc900043c7008 R15: ffff888009b9af48
[  176.898519][ T2029] FS:  00007f214311b800(0000) GS:ffff8880bed99000(0000) knlGS:0000000000000000
[  176.899051][ T2029] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  176.899437][ T2029] CR2: 00000000004e6898 CR3: 00000000107cb006 CR4: 0000000000772ef0
[  176.899896][ T2029] PKRU: 55555554
[  176.900118][ T2029] Call Trace:
[  176.900337][ T2029]  <TASK>
[ 176.900489][ T2029] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 176.900804][ T2029] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 176.901114][ T2029] netif_set_mtu (net/core/dev.c:9652) 
[ 176.901411][ T2029] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 176.901743][ T2029] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 176.901971][ T2029] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 176.902270][ T2029] br_add_if (net/bridge/br_if.c:697) 
[ 176.902505][ T2029] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 176.902810][ T2029] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 176.903116][ T2029] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 176.903415][ T2029] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 176.903795][ T2029] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 176.904091][ T2029] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 176.904387][ T2029] ? __kernel_text_address (kernel/extable.c:79) 
[ 176.904692][ T2029] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 176.904994][ T2029] ? __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) 
[ 176.905291][ T2029] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 176.905667][ T2029] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 176.905963][ T2029] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 176.906256][ T2029] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 176.906550][ T2029] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 176.906857][ T2029] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 176.907151][ T2029] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 176.907449][ T2029] ? __create_object (mm/kmemleak.c:771) 
[ 176.907752][ T2029] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 176.908050][ T2029] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 176.908348][ T2029] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 176.908728][ T2029] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 176.909028][ T2029] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 176.909341][ T2029] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 176.909651][ T2029] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 176.909952][ T2029] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 176.910248][ T2029] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 176.910539][ T2029] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 176.910842][ T2029] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 176.911134][ T2029] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 176.911430][ T2029] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 176.911736][ T2029] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 176.912042][ T2029] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 176.912336][ T2029] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 176.912642][ T2029] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 176.912952][ T2029] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 176.913243][ T2029] ? 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) 
[ 176.913539][ T2029] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 176.913843][ T2029] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 176.914142][ T2029] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 176.914442][ T2029] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 176.914749][ T2029] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 176.915046][ T2029] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 176.915353][ T2029] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 176.915660][ T2029] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 176.915951][ T2029] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 176.916332][ T2029] ___sys_sendmsg (net/socket.c:2670) 
[ 176.916632][ T2029] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 176.916931][ T2029] ? __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) 
[ 176.917296][ T2029] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 176.917594][ T2029] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 176.917898][ T2029] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 176.918316][ T2029] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 176.918850][ T2029] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 176.919371][ T2029] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 176.919919][ T2029] __sys_sendmsg (net/socket.c:2700) 
[ 176.920232][ T2029] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 176.920600][ T2029] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 176.920920][ T2029] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 176.921216][ T2029] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 176.921514][ T2029] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  176.921904][ T2029] RIP: 0033:0x7f21432e81e7
[ 176.922208][ T2029] 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)
[  176.923263][ T2029] RSP: 002b:00007fff54791f58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  176.923728][ T2029] RAX: ffffffffffffffda RBX: 00007fff54792690 RCX: 00007f21432e81e7
[  176.924167][ T2029] RDX: 0000000000000000 RSI: 00007fff54791fc0 RDI: 0000000000000005
[  176.924616][ T2029] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  176.925056][ T2029] R10: 0000000031c3a910 R11: 0000000000000246 R12: 0000000000000003
[  176.925505][ T2029] R13: 00000000686e6ffc R14: 0000000000499600 R15: 0000000000000000
| [  178.471430][ T2055] ------------[ cut here ]------------
| [ 178.471763][ T2055] WARNING: CPU: 0 PID: 2055 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) 
| [  178.472374][ T2055] Modules linked in: vxlan
| [  178.473330][ T2055] Tainted: [W]=WARN
[  178.473570][ T2055] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 178.473968][ T2055] 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) 
[ 178.474287][ T2055] 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
[  178.475409][ T2055] RSP: 0018:ffffc90004446ef0 EFLAGS: 00010246
[  178.475809][ T2055] RAX: 0000000000000000 RBX: ffff888009b9a000 RCX: 0000000000000001
[  178.476294][ T2055] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  178.476774][ T2055] RBP: ffffc90004446fd8 R08: 0000000000000000 R09: 0000000000000000
[  178.477246][ T2055] R10: ffffc90004447008 R11: ffffffffac58d1e0 R12: 1ffff92000888de2
[  178.477764][ T2055] R13: 0000000000000596 R14: ffffc90004447008 R15: ffff888009b9af48
[  178.478251][ T2055] FS:  00007fa45e3c7800(0000) GS:ffff8880bed99000(0000) knlGS:0000000000000000
[  178.478823][ T2055] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  178.479236][ T2055] CR2: 00000000004e6898 CR3: 0000000012ca3003 CR4: 0000000000772ef0
[  178.479746][ T2055] PKRU: 55555554
[  178.479986][ T2055] Call Trace:
[  178.480218][ T2055]  <TASK>
[ 178.480379][ T2055] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 178.480723][ T2055] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 178.481049][ T2055] netif_set_mtu (net/core/dev.c:9652) 
[ 178.481358][ T2055] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 178.481713][ T2055] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 178.481966][ T2055] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 178.482293][ T2055] br_add_if (net/bridge/br_if.c:697) 
[ 178.482559][ T2055] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 178.482883][ T2055] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 178.483198][ T2055] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 178.483513][ T2055] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 178.484001][ T2055] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 178.484323][ T2055] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 178.484634][ T2055] ? __kernel_text_address (kernel/extable.c:79) 
[ 178.484949][ T2055] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 178.485246][ T2055] ? __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) 
[ 178.485595][ T2055] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 178.486011][ T2055] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 178.486323][ T2055] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 178.486649][ T2055] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 178.486974][ T2055] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 178.487285][ T2055] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 178.487599][ T2055] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 178.487934][ T2055] ? __create_object (mm/kmemleak.c:771) 
[ 178.488248][ T2055] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 178.488568][ T2055] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 178.488894][ T2055] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 178.489308][ T2055] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 178.489657][ T2055] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 178.489997][ T2055] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 178.490312][ T2055] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 178.490652][ T2055] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 178.490976][ T2055] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 178.491296][ T2055] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 178.491631][ T2055] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 178.491960][ T2055] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 178.492281][ T2055] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 178.492596][ T2055] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 178.492938][ T2055] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 178.493250][ T2055] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 178.493562][ T2055] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 178.493897][ T2055] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 178.494214][ T2055] ? 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) 
[ 178.494525][ T2055] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 178.494850][ T2055] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 178.495158][ T2055] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 178.495472][ T2055] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 178.495794][ T2055] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 178.496108][ T2055] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 178.496425][ T2055] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 178.496755][ T2055] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 178.497087][ T2055] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 178.497499][ T2055] ___sys_sendmsg (net/socket.c:2670) 
[ 178.497817][ T2055] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 178.498129][ T2055] ? __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) 
[ 178.498519][ T2055] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 178.498848][ T2055] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 178.499181][ T2055] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 178.499509][ T2055] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 178.499829][ T2055] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 178.500161][ T2055] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 178.500478][ T2055] __sys_sendmsg (net/socket.c:2700) 
[ 178.500796][ T2055] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 178.501186][ T2055] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 178.501511][ T2055] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 178.501831][ T2055] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 178.502149][ T2055] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  178.502534][ T2055] RIP: 0033:0x7fa45e5941e7
[ 178.502861][ T2055] 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)
[  178.503977][ T2055] RSP: 002b:00007ffdf5e63d28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  178.504442][ T2055] RAX: ffffffffffffffda RBX: 00007ffdf5e64460 RCX: 00007fa45e5941e7
[  178.504913][ T2055] RDX: 0000000000000000 RSI: 00007ffdf5e63d90 RDI: 0000000000000005
[  178.505396][ T2055] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  178.505883][ T2055] R10: 0000000033ff6910 R11: 0000000000000246 R12: 0000000000000003
[  178.506346][ T2055] R13: 00000000686e6ffe R14: 0000000000499600 R15: 0000000000000000
| [  182.091046][ T2106] ------------[ cut here ]------------
| [ 182.091345][ T2106] WARNING: CPU: 3 PID: 2106 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) 
| [  182.091951][ T2106] Modules linked in: vxlan
| [  182.092889][ T2106] Tainted: [W]=WARN
[  182.093118][ T2106] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 182.093497][ T2106] 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) 
[ 182.093810][ T2106] 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
[  182.094919][ T2106] RSP: 0018:ffffc90004546ef0 EFLAGS: 00010246
[  182.095298][ T2106] RAX: 0000000000000000 RBX: ffff88800c5c2000 RCX: 0000000000000001
[  182.095748][ T2106] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  182.096207][ T2106] RBP: ffffc90004546fd8 R08: 0000000000000000 R09: 0000000000000000
[  182.096671][ T2106] R10: ffffc90004547008 R11: ffffffffac58d1e0 R12: 1ffff920008a8de2
[  182.097122][ T2106] R13: 00000000000005dc R14: ffffc90004547008 R15: ffff88800c5c2f48
[  182.097584][ T2106] FS:  00007fe900308800(0000) GS:ffff8880bef19000(0000) knlGS:0000000000000000
[  182.098117][ T2106] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  182.098501][ T2106] CR2: 00000000004e6890 CR3: 000000000d448003 CR4: 0000000000772ef0
[  182.098968][ T2106] PKRU: 55555554
[  182.099194][ T2106] Call Trace:
[  182.099434][ T2106]  <TASK>
[ 182.099590][ T2106] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 182.099902][ T2106] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 182.100215][ T2106] netif_set_mtu (net/core/dev.c:9652) 
[ 182.100521][ T2106] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 182.100850][ T2106] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 182.101080][ T2106] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 182.101388][ T2106] br_add_if (net/bridge/br_if.c:697) 
[ 182.101633][ T2106] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 182.101935][ T2106] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 182.102236][ T2106] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 182.102540][ T2106] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 182.102923][ T2106] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 182.103276][ T2106] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 182.103587][ T2106] ? __kernel_text_address (kernel/extable.c:79) 
[ 182.103929][ T2106] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 182.104248][ T2106] ? __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) 
[ 182.104561][ T2106] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 182.104961][ T2106] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 182.105274][ T2106] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 182.105581][ T2106] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 182.105899][ T2106] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 182.106211][ T2106] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 182.106523][ T2106] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 182.106842][ T2106] ? __create_object (mm/kmemleak.c:771) 
[ 182.107162][ T2106] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 182.107487][ T2106] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 182.107811][ T2106] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 182.108198][ T2106] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 182.108516][ T2106] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 182.108840][ T2106] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 182.109152][ T2106] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 182.109477][ T2106] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 182.109798][ T2106] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 182.110112][ T2106] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 182.110423][ T2106] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 182.110743][ T2106] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 182.111058][ T2106] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 182.111371][ T2106] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 182.111696][ T2106] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 182.112008][ T2106] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 182.112324][ T2106] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 182.112652][ T2106] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 182.112962][ T2106] ? 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) 
[ 182.113273][ T2106] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 182.113584][ T2106] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 182.113899][ T2106] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 182.114213][ T2106] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 182.114529][ T2106] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 182.114847][ T2106] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 182.115165][ T2106] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 182.115476][ T2106] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 182.115791][ T2106] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 182.116189][ T2106] ___sys_sendmsg (net/socket.c:2670) 
[ 182.116495][ T2106] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 182.116813][ T2106] ? __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) 
[ 182.117200][ T2106] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 182.117513][ T2106] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 182.117832][ T2106] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 182.118154][ T2106] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 182.118463][ T2106] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 182.118779][ T2106] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 182.119103][ T2106] __sys_sendmsg (net/socket.c:2700) 
[ 182.119434][ T2106] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 182.119829][ T2106] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 182.120152][ T2106] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 182.120463][ T2106] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 182.120787][ T2106] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  182.121171][ T2106] RIP: 0033:0x7fe9004d51e7
[ 182.121493][ T2106] 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)
[  182.122615][ T2106] RSP: 002b:00007ffeb3d1b8f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  182.123088][ T2106] RAX: ffffffffffffffda RBX: 00007ffeb3d1c030 RCX: 00007fe9004d51e7
[  182.123594][ T2106] RDX: 0000000000000000 RSI: 00007ffeb3d1b960 RDI: 0000000000000005
[  182.124065][ T2106] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  182.124525][ T2106] R10: 000000001c51b910 R11: 0000000000000246 R12: 0000000000000003
[  182.124995][ T2106] R13: 00000000686e7001 R14: 0000000000499600 R15: 0000000000000000
| [  183.645143][ T2132] ------------[ cut here ]------------
| [ 183.645468][ T2132] WARNING: CPU: 3 PID: 2132 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) 
| [  183.646100][ T2132] Modules linked in: vxlan
| [  183.647078][ T2132] Tainted: [W]=WARN
[  183.647322][ T2132] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 183.647713][ T2132] 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) 
[ 183.648031][ T2132] 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
[  183.649148][ T2132] RSP: 0018:ffffc90004526ef0 EFLAGS: 00010246
[  183.649553][ T2132] RAX: 0000000000000000 RBX: ffff88800c5c2000 RCX: 0000000000000001
[  183.650020][ T2132] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  183.650483][ T2132] RBP: ffffc90004526fd8 R08: 0000000000000000 R09: 0000000000000000
[  183.650954][ T2132] R10: ffffc90004527008 R11: ffffffffaceceab8 R12: 1ffff920008a4de2
[  183.651423][ T2132] R13: 00000000000005aa R14: ffffc90004527008 R15: ffff88800c5c2f48
[  183.651896][ T2132] FS:  00007ff863ec6800(0000) GS:ffff8880bef19000(0000) knlGS:0000000000000000
[  183.652436][ T2132] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  183.652835][ T2132] CR2: 00000000004e6890 CR3: 0000000012150004 CR4: 0000000000772ef0
[  183.653309][ T2132] PKRU: 55555554
[  183.653542][ T2132] Call Trace:
[  183.653781][ T2132]  <TASK>
[ 183.653943][ T2132] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 183.654259][ T2132] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 183.654566][ T2132] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 183.654960][ T2132] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 183.655274][ T2132] netif_set_mtu (net/core/dev.c:9652) 
[ 183.655589][ T2132] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 183.655920][ T2132] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 183.656313][ T2132] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 183.656549][ T2132] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 183.656871][ T2132] br_add_if (net/bridge/br_if.c:697) 
[ 183.657119][ T2132] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 183.657426][ T2132] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 183.657751][ T2132] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 183.658077][ T2132] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 183.658470][ T2132] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 183.658789][ T2132] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 183.659098][ T2132] ? __kernel_text_address (kernel/extable.c:79) 
[ 183.659418][ T2132] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 183.659743][ T2132] ? __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) 
[ 183.660065][ T2132] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 183.660451][ T2132] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 183.660774][ T2132] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 183.661083][ T2132] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 183.661392][ T2132] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 183.661710][ T2132] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 183.662019][ T2132] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 183.662324][ T2132] ? __create_object (mm/kmemleak.c:771) 
[ 183.662648][ T2132] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 183.662958][ T2132] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 183.663266][ T2132] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 183.663657][ T2132] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 183.663975][ T2132] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 183.664288][ T2132] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 183.664599][ T2132] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 183.664923][ T2132] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 183.665238][ T2132] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 183.665546][ T2132] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 183.665867][ T2132] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 183.666179][ T2132] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 183.666492][ T2132] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 183.666820][ T2132] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 183.667136][ T2132] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 183.667456][ T2132] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 183.667777][ T2132] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 183.668097][ T2132] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 183.668410][ T2132] ? 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) 
[ 183.668729][ T2132] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 183.669043][ T2132] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 183.669357][ T2132] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 183.669689][ T2132] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 183.670004][ T2132] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 183.670315][ T2132] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 183.670646][ T2132] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 183.670963][ T2132] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 183.671272][ T2132] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 183.671678][ T2132] ___sys_sendmsg (net/socket.c:2670) 
[ 183.671991][ T2132] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 183.672294][ T2132] ? __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) 
[ 183.672702][ T2132] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 183.673012][ T2132] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 183.673323][ T2132] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 183.673646][ T2132] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 183.673954][ T2132] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 183.674266][ T2132] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 183.674579][ T2132] __sys_sendmsg (net/socket.c:2700) 
[ 183.674891][ T2132] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 183.675275][ T2132] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 183.675599][ T2132] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 183.675917][ T2132] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 183.676223][ T2132] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  183.676601][ T2132] RIP: 0033:0x7ff8640931e7
[ 183.676931][ T2132] 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)
[  183.678028][ T2132] RSP: 002b:00007fff0f3cafc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  183.678489][ T2132] RAX: ffffffffffffffda RBX: 00007fff0f3cb700 RCX: 00007ff8640931e7
[  183.678962][ T2132] RDX: 0000000000000000 RSI: 00007fff0f3cb030 RDI: 0000000000000005
[  183.679432][ T2132] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  183.679897][ T2132] R10: 0000000037129910 R11: 0000000000000246 R12: 0000000000000003
[  183.680358][ T2132] R13: 00000000686e7003 R14: 0000000000499600 R15: 0000000000000000
| [  187.442577][ T2182] ------------[ cut here ]------------
| [ 187.442885][ T2182] WARNING: CPU: 0 PID: 2182 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) 
| [  187.443470][ T2182] Modules linked in: vxlan
| [  187.444387][ T2182] Tainted: [W]=WARN
[  187.444620][ T2182] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 187.444988][ T2182] 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) 
[ 187.445298][ T2182] 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
[  187.446358][ T2182] RSP: 0018:ffffc90004786ef0 EFLAGS: 00010246
[  187.446744][ T2182] RAX: 0000000000000000 RBX: ffff888011b7a000 RCX: 0000000000000001
[  187.447184][ T2182] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  187.447630][ T2182] RBP: ffffc90004786fd8 R08: 0000000000000000 R09: 0000000000000000
[  187.448077][ T2182] R10: ffffc90004787008 R11: ffffffffac58d1e0 R12: 1ffff920008f0de2
[  187.448515][ T2182] R13: 00000000000005dc R14: ffffc90004787008 R15: ffff888011b7af48
[  187.448959][ T2182] FS:  00007fc9f788f800(0000) GS:ffff8880bed99000(0000) knlGS:0000000000000000
[  187.449485][ T2182] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  187.449870][ T2182] CR2: 00000000004e6898 CR3: 000000000fe5e005 CR4: 0000000000772ef0
[  187.450313][ T2182] PKRU: 55555554
[  187.450533][ T2182] Call Trace:
[  187.450758][ T2182]  <TASK>
[ 187.450912][ T2182] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 187.451206][ T2182] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 187.451511][ T2182] netif_set_mtu (net/core/dev.c:9652) 
[ 187.451813][ T2182] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 187.452126][ T2182] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 187.452351][ T2182] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 187.452657][ T2182] br_add_if (net/bridge/br_if.c:697) 
[ 187.452893][ T2182] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 187.453188][ T2182] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 187.453496][ T2182] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 187.453801][ T2182] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 187.454176][ T2182] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 187.454469][ T2182] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 187.454772][ T2182] ? __kernel_text_address (kernel/extable.c:79) 
[ 187.455070][ T2182] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 187.455367][ T2182] ? __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) 
[ 187.455674][ T2182] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 187.456038][ T2182] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 187.456332][ T2182] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 187.456632][ T2182] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 187.456926][ T2182] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 187.457217][ T2182] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 187.457512][ T2182] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 187.457829][ T2182] ? __create_object (mm/kmemleak.c:771) 
[ 187.458124][ T2182] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 187.458420][ T2182] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 187.458724][ T2182] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 187.459088][ T2182] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 187.459408][ T2182] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 187.459718][ T2182] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 187.460012][ T2182] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 187.460318][ T2182] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 187.460667][ T2182] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 187.460962][ T2182] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 187.461259][ T2182] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 187.461553][ T2182] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 187.461854][ T2182] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 187.462155][ T2182] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 187.462456][ T2182] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 187.462764][ T2182] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 187.463061][ T2182] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 187.463364][ T2182] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 187.463666][ T2182] ? 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) 
[ 187.463962][ T2182] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 187.464258][ T2182] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 187.464558][ T2182] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 187.464870][ T2182] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 187.465169][ T2182] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 187.465465][ T2182] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 187.465776][ T2182] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 187.466075][ T2182] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 187.466366][ T2182] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 187.466753][ T2182] ___sys_sendmsg (net/socket.c:2670) 
[ 187.467052][ T2182] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 187.467343][ T2182] ? __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) 
[ 187.467717][ T2182] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 187.468015][ T2182] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 187.468312][ T2182] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 187.468620][ T2182] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 187.468921][ T2182] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 187.469214][ T2182] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 187.469526][ T2182] __sys_sendmsg (net/socket.c:2700) 
[ 187.469827][ T2182] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 187.470190][ T2182] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 187.470498][ T2182] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 187.470800][ T2182] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 187.471097][ T2182] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  187.471467][ T2182] RIP: 0033:0x7fc9f7a5c1e7
[ 187.471780][ T2182] 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)
[  187.472839][ T2182] RSP: 002b:00007fffb1b8b398 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  187.473285][ T2182] RAX: ffffffffffffffda RBX: 00007fffb1b8bad0 RCX: 00007fc9f7a5c1e7
[  187.473734][ T2182] RDX: 0000000000000000 RSI: 00007fffb1b8b400 RDI: 0000000000000005
[  187.474173][ T2182] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  187.474618][ T2182] R10: 000000003f44d910 R11: 0000000000000246 R12: 0000000000000003
[  187.475060][ T2182] R13: 00000000686e7006 R14: 0000000000499600 R15: 0000000000000000
| [  189.006970][ T2208] ------------[ cut here ]------------
| [ 189.007299][ T2208] WARNING: CPU: 2 PID: 2208 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) 
| [  189.009072][ T2208] Modules linked in: vxlan
| [  189.010034][ T2208] Tainted: [W]=WARN
[  189.010279][ T2208] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 189.010671][ T2208] 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) 
[ 189.010992][ T2208] 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
[  189.012063][ T2208] RSP: 0018:ffffc90004896ef0 EFLAGS: 00010246
[  189.012448][ T2208] RAX: 0000000000000000 RBX: ffff888011b7a000 RCX: 0000000000000001
[  189.012911][ T2208] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  189.013364][ T2208] RBP: ffffc90004896fd8 R08: 0000000000000000 R09: 0000000000000000
[  189.013831][ T2208] R10: ffffc90004897008 R11: ffffffffac58d1e0 R12: 1ffff92000912de2
[  189.014287][ T2208] R13: 0000000000000596 R14: ffffc90004897008 R15: ffff888011b7af48
[  189.014752][ T2208] FS:  00007f4cf1f9d800(0000) GS:ffff8880bee99000(0000) knlGS:0000000000000000
[  189.015283][ T2208] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  189.015678][ T2208] CR2: 00000000004e6898 CR3: 0000000012eb0004 CR4: 0000000000772ef0
[  189.016132][ T2208] PKRU: 55555554
[  189.016372][ T2208] Call Trace:
[  189.016613][ T2208]  <TASK>
[ 189.016782][ T2208] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 189.017088][ T2208] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 189.017412][ T2208] netif_set_mtu (net/core/dev.c:9652) 
[ 189.017728][ T2208] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 189.018055][ T2208] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 189.018292][ T2208] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 189.018615][ T2208] br_add_if (net/bridge/br_if.c:697) 
[ 189.018864][ T2208] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 189.019171][ T2208] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 189.019496][ T2208] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 189.019821][ T2208] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 189.020210][ T2208] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 189.020516][ T2208] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 189.020837][ T2208] ? __kernel_text_address (kernel/extable.c:79) 
[ 189.021150][ T2208] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 189.021461][ T2208] ? __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) 
[ 189.021778][ T2208] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 189.022158][ T2208] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 189.022467][ T2208] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 189.022782][ T2208] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 189.023094][ T2208] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 189.023434][ T2208] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 189.023754][ T2208] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 189.024061][ T2208] ? __create_object (mm/kmemleak.c:771) 
[ 189.024376][ T2208] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 189.024696][ T2208] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 189.025030][ T2208] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 189.025415][ T2208] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 189.025748][ T2208] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 189.026065][ T2208] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 189.026374][ T2208] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 189.026702][ T2208] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 189.027010][ T2208] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 189.027313][ T2208] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 189.027649][ T2208] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 189.027958][ T2208] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 189.028276][ T2208] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 189.028586][ T2208] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 189.028909][ T2208] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 189.029246][ T2208] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 189.029574][ T2208] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 189.029908][ T2208] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 189.030223][ T2208] ? 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) 
[ 189.030538][ T2208] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 189.030862][ T2208] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 189.031169][ T2208] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 189.031484][ T2208] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 189.031802][ T2208] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 189.032113][ T2208] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 189.032430][ T2208] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 189.032762][ T2208] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 189.033068][ T2208] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 189.033460][ T2208] ___sys_sendmsg (net/socket.c:2670) 
[ 189.033777][ T2208] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 189.034086][ T2208] ? __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) 
[ 189.034465][ T2208] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 189.034784][ T2208] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 189.035101][ T2208] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 189.035416][ T2208] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 189.035732][ T2208] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 189.036040][ T2208] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 189.036356][ T2208] __sys_sendmsg (net/socket.c:2700) 
[ 189.036672][ T2208] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 189.037047][ T2208] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 189.037373][ T2208] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 189.037692][ T2208] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 189.038001][ T2208] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  189.038377][ T2208] RIP: 0033:0x7f4cf216a1e7
[ 189.038705][ T2208] 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)
[  189.039803][ T2208] RSP: 002b:00007ffde17dc3b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  189.040259][ T2208] RAX: ffffffffffffffda RBX: 00007ffde17dcaf0 RCX: 00007f4cf216a1e7
[  189.040721][ T2208] RDX: 0000000000000000 RSI: 00007ffde17dc420 RDI: 0000000000000005
[  189.041173][ T2208] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  189.041635][ T2208] R10: 0000000032da5910 R11: 0000000000000246 R12: 0000000000000003
[  189.042087][ T2208] R13: 00000000686e7008 R14: 0000000000499600 R15: 0000000000000000
| [  193.734401][   T66] ------------[ cut here ]------------
| [ 193.734760][ T66] WARNING: CPU: 2 PID: 66 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) 
| [  193.735310][   T66] Modules linked in: vxlan
| [  193.736374][   T66] Tainted: [W]=WARN
[  193.736641][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  193.737051][   T66] Workqueue: netns cleanup_net
[ 193.737393][ T66] 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) 
[ 193.737743][ T66] 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
[  193.738884][   T66] RSP: 0018:ffffc90000477360 EFLAGS: 00010246
[  193.739293][   T66] RAX: 0000000000000000 RBX: ffff888011b7a000 RCX: 0000000000000001
[  193.739980][   T66] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  193.740771][   T66] RBP: ffffc90000477450 R08: 0000000000000000 R09: 0000000000000000
[  193.741392][   T66] R10: ffffc90000477480 R11: ffffffffac58d1e0 R12: 1ffff9200008ee70
[  193.742060][   T66] R13: 00000000000005dc R14: ffffc90000477480 R15: ffff888011b7af48
[  193.742737][   T66] FS:  0000000000000000(0000) GS:ffff8880bee99000(0000) knlGS:0000000000000000
[  193.743488][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  193.743909][   T66] CR2: 00000000004a1030 CR3: 000000006874a006 CR4: 0000000000772ef0
[  193.744388][   T66] PKRU: 55555554
[  193.744645][   T66] Call Trace:
[  193.744889][   T66]  <TASK>
[ 193.745060][ T66] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 193.745385][ T66] ? __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) 
[ 193.745795][ T66] ? br_del_if (net/bridge/br_if.c:742) 
[ 193.746042][ T66] ? br_device_event (net/bridge/br.c:141) 
[ 193.746369][ T66] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 193.746717][ T66] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 193.747043][ T66] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 193.747449][ T66] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 193.747858][ T66] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 193.748181][ T66] ? cleanup_net (net/core/net_namespace.c:684) 
[ 193.748499][ T66] ? process_one_work (kernel/workqueue.c:3238) 
[ 193.748830][ T66] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 193.749147][ T66] ? kthread (kernel/kthread.c:464) 
[ 193.749405][ T66] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 193.749737][ T66] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 193.750077][ T66] netif_set_mtu (net/core/dev.c:9652) 
[ 193.750400][ T66] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 193.750748][ T66] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 193.750995][ T66] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 193.751324][ T66] br_del_if (net/bridge/br_if.c:743) 
[ 193.751570][ T66] br_device_event (net/bridge/br.c:141) 
[ 193.751908][ T66] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 193.752242][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 193.752576][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 193.752995][ T66] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 193.753411][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 193.753832][ T66] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 193.754173][ T66] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 193.754586][ T66] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 193.755020][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 193.755348][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 193.755764][ T66] ? 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) 
[ 193.756087][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 193.756489][ T66] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 193.756891][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 193.757293][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 193.757708][ T66] default_device_exit_batch (net/core/dev.c:12673) 
[ 193.758035][ T66] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 193.758441][ T66] ops_undo_list (net/core/net_namespace.c:250) 
[ 193.758783][ T66] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 193.759104][ T66] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 193.759441][ T66] cleanup_net (net/core/net_namespace.c:684) 
[ 193.759786][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 193.760111][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 193.760436][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 193.760781][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 193.761113][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 193.761438][ T66] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 193.761779][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 193.762110][ T66] kthread (kernel/kthread.c:464) 
[ 193.762367][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 193.762700][ T66] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 193.763021][ T66] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 193.763348][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 193.763679][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 193.764006][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 193.764325][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 193.764657][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  193.797297][   T66] ------------[ cut here ]------------
| [ 193.797639][ T66] WARNING: CPU: 3 PID: 66 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) 
| [  193.798172][   T66] Modules linked in: vxlan
| [  193.799207][   T66] Tainted: [W]=WARN
[  193.799449][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  193.799847][   T66] Workqueue: netns cleanup_net
[ 193.800169][ T66] 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) 
[ 193.800485][ T66] 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
[  193.801590][   T66] RSP: 0018:ffffc90000477360 EFLAGS: 00010246
[  193.801988][   T66] RAX: 0000000000000000 RBX: ffff88800c5c2000 RCX: 0000000000000001
[  193.802461][   T66] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  193.802940][   T66] RBP: ffffc90000477450 R08: 0000000000000000 R09: 0000000000000000
[  193.803406][   T66] R10: ffffc90000477480 R11: ffffffffac58d1e0 R12: 1ffff9200008ee70
[  193.803871][   T66] R13: 00000000000005dc R14: ffffc90000477480 R15: ffff88800c5c2f48
[  193.804332][   T66] FS:  0000000000000000(0000) GS:ffff8880bef19000(0000) knlGS:0000000000000000
[  193.804893][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  193.805279][   T66] CR2: 00007faa5ac09000 CR3: 000000006874a002 CR4: 0000000000772ef0
[  193.805751][   T66] PKRU: 55555554
[  193.805982][   T66] Call Trace:
[  193.806210][   T66]  <TASK>
[ 193.806366][ T66] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 193.806681][ T66] ? __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) 
[ 193.807066][ T66] ? br_del_if (net/bridge/br_if.c:742) 
[ 193.807299][ T66] ? br_device_event (net/bridge/br.c:141) 
[ 193.807615][ T66] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 193.807922][ T66] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 193.808229][ T66] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 193.808616][ T66] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 193.809000][ T66] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 193.809303][ T66] ? cleanup_net (net/core/net_namespace.c:684) 
[ 193.809629][ T66] ? process_one_work (kernel/workqueue.c:3238) 
[ 193.809931][ T66] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 193.810232][ T66] ? kthread (kernel/kthread.c:464) 
[ 193.810461][ T66] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 193.810777][ T66] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 193.811095][ T66] netif_set_mtu (net/core/dev.c:9652) 
[ 193.811408][ T66] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 193.811737][ T66] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 193.811970][ T66] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 193.812278][ T66] br_del_if (net/bridge/br_if.c:743) 
[ 193.812511][ T66] br_device_event (net/bridge/br.c:141) 
[ 193.812826][ T66] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 193.813143][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 193.813462][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 193.813855][ T66] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 193.814258][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 193.814651][ T66] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 193.814974][ T66] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 193.815371][ T66] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 193.815784][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 193.816097][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 193.816482][ T66] ? 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) 
[ 193.816795][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 193.817176][ T66] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 193.817553][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 193.817940][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 193.818334][ T66] default_device_exit_batch (net/core/dev.c:12673) 
[ 193.818648][ T66] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 193.819035][ T66] ops_undo_list (net/core/net_namespace.c:250) 
[ 193.819352][ T66] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 193.819665][ T66] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 193.819979][ T66] cleanup_net (net/core/net_namespace.c:684) 
[ 193.820289][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 193.820602][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 193.820927][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 193.821246][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 193.821559][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 193.821875][ T66] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 193.822198][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 193.822504][ T66] kthread (kernel/kthread.c:464) 
[ 193.822750][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 193.823055][ T66] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 193.823357][ T66] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 193.823675][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 193.823980][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 193.824290][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 193.824595][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 193.824908][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  216.254758][ T2458] ------------[ cut here ]------------
| [ 216.255094][ T2458] WARNING: CPU: 2 PID: 2458 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) 
| [  216.255726][ T2458] Modules linked in: vxlan
| [  216.256710][ T2458] Tainted: [W]=WARN
[  216.256957][ T2458] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 216.257382][ T2458] 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) 
[ 216.257739][ T2458] 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
[  216.258842][ T2458] RSP: 0018:ffffc900052b6ef0 EFLAGS: 00010246
[  216.259243][ T2458] RAX: 0000000000000000 RBX: ffff88800e08a000 RCX: 0000000000000001
[  216.259717][ T2458] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  216.260175][ T2458] RBP: ffffc900052b6fd8 R08: 0000000000000000 R09: 0000000000000000
[  216.260639][ T2458] R10: ffffc900052b7008 R11: ffffffffac58d1e0 R12: 1ffff92000a56de2
[  216.261093][ T2458] R13: 00000000000005dc R14: ffffc900052b7008 R15: ffff88800e08af48
[  216.261549][ T2458] FS:  00007f8da1ea2800(0000) GS:ffff8880bee99000(0000) knlGS:0000000000000000
[  216.262089][ T2458] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  216.262476][ T2458] CR2: 00000000004e6890 CR3: 0000000013212004 CR4: 0000000000772ef0
[  216.262940][ T2458] PKRU: 55555554
[  216.263189][ T2458] Call Trace:
[  216.263433][ T2458]  <TASK>
[ 216.263620][ T2458] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 216.263946][ T2458] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 216.264284][ T2458] netif_set_mtu (net/core/dev.c:9652) 
[ 216.264619][ T2458] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 216.264951][ T2458] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 216.265191][ T2458] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 216.265500][ T2458] br_add_if (net/bridge/br_if.c:697) 
[ 216.265757][ T2458] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 216.266059][ T2458] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 216.266373][ T2458] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 216.266692][ T2458] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 216.267086][ T2458] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 216.267393][ T2458] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 216.267707][ T2458] ? __kernel_text_address (kernel/extable.c:79) 
[ 216.268014][ T2458] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 216.268337][ T2458] ? __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) 
[ 216.268669][ T2458] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 216.269067][ T2458] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 216.269429][ T2458] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 216.269767][ T2458] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 216.270090][ T2458] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 216.270400][ T2458] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 216.270727][ T2458] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 216.271043][ T2458] ? __create_object (mm/kmemleak.c:771) 
[ 216.271370][ T2458] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 216.271701][ T2458] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 216.272020][ T2458] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 216.272418][ T2458] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 216.272739][ T2458] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 216.273053][ T2458] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 216.273370][ T2458] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 216.273700][ T2458] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 216.274012][ T2458] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 216.274328][ T2458] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 216.274644][ T2458] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 216.274958][ T2458] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 216.275267][ T2458] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 216.275576][ T2458] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 216.275898][ T2458] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 216.276214][ T2458] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 216.276539][ T2458] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 216.276871][ T2458] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 216.277177][ T2458] ? 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) 
[ 216.277483][ T2458] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 216.277803][ T2458] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 216.278110][ T2458] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 216.278421][ T2458] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 216.278738][ T2458] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 216.279052][ T2458] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 216.279372][ T2458] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 216.279703][ T2458] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 216.280006][ T2458] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 216.280407][ T2458] ___sys_sendmsg (net/socket.c:2670) 
[ 216.280719][ T2458] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 216.281036][ T2458] ? __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) 
[ 216.281418][ T2458] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 216.281737][ T2458] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 216.282045][ T2458] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 216.282367][ T2458] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 216.282685][ T2458] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 216.282990][ T2458] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 216.283317][ T2458] __sys_sendmsg (net/socket.c:2700) 
[ 216.283639][ T2458] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 216.284019][ T2458] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 216.284339][ T2458] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 216.284655][ T2458] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 216.284966][ T2458] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  216.285341][ T2458] RIP: 0033:0x7f8da206f1e7
[ 216.285671][ T2458] 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)
[  216.286760][ T2458] RSP: 002b:00007fff14298dc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  216.287220][ T2458] RAX: ffffffffffffffda RBX: 00007fff14299500 RCX: 00007f8da206f1e7
[  216.287690][ T2458] RDX: 0000000000000000 RSI: 00007fff14298e30 RDI: 0000000000000005
[  216.288163][ T2458] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  216.288638][ T2458] R10: 0000000038be7910 R11: 0000000000000246 R12: 0000000000000003
[  216.289091][ T2458] R13: 00000000686e7023 R14: 0000000000499600 R15: 0000000000000000
| [  217.829298][ T2484] ------------[ cut here ]------------
| [ 217.829638][ T2484] WARNING: CPU: 3 PID: 2484 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) 
| [  217.830254][ T2484] Modules linked in: vxlan
| [  217.831305][ T2484] Tainted: [W]=WARN
[  217.831533][ T2484] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 217.831915][ T2484] 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) 
[ 217.832230][ T2484] 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
[  217.833290][ T2484] RSP: 0018:ffffc900053e6ef0 EFLAGS: 00010246
[  217.833668][ T2484] RAX: 0000000000000000 RBX: ffff88800e08a000 RCX: 0000000000000001
[  217.834113][ T2484] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  217.834554][ T2484] RBP: ffffc900053e6fd8 R08: 0000000000000000 R09: 0000000000000000
[  217.835000][ T2484] R10: ffffc900053e7008 R11: ffffffffaceceab8 R12: 1ffff92000a7cde2
[  217.835441][ T2484] R13: 00000000000005aa R14: ffffc900053e7008 R15: ffff88800e08af48
[  217.835888][ T2484] FS:  00007fef003c7800(0000) GS:ffff8880bef19000(0000) knlGS:0000000000000000
[  217.836409][ T2484] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  217.836790][ T2484] CR2: 00000000004e6890 CR3: 0000000011b5d005 CR4: 0000000000772ef0
[  217.837233][ T2484] PKRU: 55555554
[  217.837458][ T2484] Call Trace:
[  217.837690][ T2484]  <TASK>
[ 217.837846][ T2484] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 217.838150][ T2484] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 217.838449][ T2484] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 217.838827][ T2484] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 217.839126][ T2484] netif_set_mtu (net/core/dev.c:9652) 
[ 217.839433][ T2484] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 217.839746][ T2484] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 217.840121][ T2484] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 217.840353][ T2484] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 217.840662][ T2484] br_add_if (net/bridge/br_if.c:697) 
[ 217.840897][ T2484] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 217.841187][ T2484] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 217.841485][ T2484] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 217.841791][ T2484] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 217.842164][ T2484] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 217.842464][ T2484] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 217.842764][ T2484] ? __kernel_text_address (kernel/extable.c:79) 
[ 217.843059][ T2484] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 217.843355][ T2484] ? __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) 
[ 217.843657][ T2484] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 217.844021][ T2484] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 217.844316][ T2484] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 217.844627][ T2484] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 217.844923][ T2484] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 217.845218][ T2484] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 217.845515][ T2484] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 217.845815][ T2484] ? __create_object (mm/kmemleak.c:771) 
[ 217.846113][ T2484] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 217.846407][ T2484] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 217.846709][ T2484] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 217.847075][ T2484] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 217.847380][ T2484] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 217.847689][ T2484] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 217.847982][ T2484] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 217.848280][ T2484] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 217.848573][ T2484] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 217.848875][ T2484] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 217.849170][ T2484] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 217.849482][ T2484] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 217.849788][ T2484] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 217.850086][ T2484] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 217.850384][ T2484] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 217.850687][ T2484] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 217.850983][ T2484] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 217.851290][ T2484] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 217.851593][ T2484] ? 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) 
[ 217.851901][ T2484] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 217.852200][ T2484] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 217.852491][ T2484] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 217.852799][ T2484] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 217.853099][ T2484] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 217.853396][ T2484] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 217.853715][ T2484] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 217.854014][ T2484] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 217.854306][ T2484] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 217.854694][ T2484] ___sys_sendmsg (net/socket.c:2670) 
[ 217.854985][ T2484] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 217.855274][ T2484] ? __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) 
[ 217.855667][ T2484] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 217.855970][ T2484] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 217.856265][ T2484] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 217.856567][ T2484] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 217.856868][ T2484] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 217.857160][ T2484] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 217.857462][ T2484] __sys_sendmsg (net/socket.c:2700) 
[ 217.857761][ T2484] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 217.858129][ T2484] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 217.858433][ T2484] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 217.858739][ T2484] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 217.859033][ T2484] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  217.859401][ T2484] RIP: 0033:0x7fef005941e7
[ 217.859728][ T2484] 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)
[  217.860793][ T2484] RSP: 002b:00007ffdbc22a5e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  217.861235][ T2484] RAX: ffffffffffffffda RBX: 00007ffdbc22ad20 RCX: 00007fef005941e7
[  217.861682][ T2484] RDX: 0000000000000000 RSI: 00007ffdbc22a650 RDI: 0000000000000005
[  217.862124][ T2484] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  217.862573][ T2484] R10: 0000000013174910 R11: 0000000000000246 R12: 0000000000000003
[  217.863024][ T2484] R13: 00000000686e7025 R14: 0000000000499600 R15: 0000000000000000
| [  221.385641][ T2535] ------------[ cut here ]------------
| [ 221.385940][ T2535] WARNING: CPU: 1 PID: 2535 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) 
| [  221.386522][ T2535] Modules linked in: vxlan
| [  221.387436][ T2535] Tainted: [W]=WARN
[  221.387665][ T2535] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 221.388038][ T2535] 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) 
[ 221.388341][ T2535] 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
[  221.389414][ T2535] RSP: 0018:ffffc90005586ef0 EFLAGS: 00010246
[  221.389812][ T2535] RAX: 0000000000000000 RBX: ffff88800e262000 RCX: 0000000000000001
[  221.390253][ T2535] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  221.390709][ T2535] RBP: ffffc90005586fd8 R08: 0000000000000000 R09: 0000000000000000
[  221.391148][ T2535] R10: ffffc90005587008 R11: ffffffffac58d1e0 R12: 1ffff92000ab0de2
[  221.391598][ T2535] R13: 00000000000005dc R14: ffffc90005587008 R15: ffff88800e262f48
[  221.392045][ T2535] FS:  00007f00eceb8800(0000) GS:ffff8880bee19000(0000) knlGS:0000000000000000
[  221.392561][ T2535] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  221.392945][ T2535] CR2: 00000000004e6898 CR3: 000000001348f001 CR4: 0000000000772ef0
[  221.393390][ T2535] PKRU: 55555554
[  221.393634][ T2535] Call Trace:
[  221.393862][ T2535]  <TASK>
[ 221.394015][ T2535] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 221.394311][ T2535] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 221.394627][ T2535] netif_set_mtu (net/core/dev.c:9652) 
[ 221.394921][ T2535] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 221.395230][ T2535] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 221.395454][ T2535] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 221.395761][ T2535] br_add_if (net/bridge/br_if.c:697) 
[ 221.396010][ T2535] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 221.396301][ T2535] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 221.396600][ T2535] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 221.396909][ T2535] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 221.397281][ T2535] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 221.397574][ T2535] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 221.397882][ T2535] ? __kernel_text_address (kernel/extable.c:79) 
[ 221.398189][ T2535] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 221.398492][ T2535] ? __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) 
[ 221.398797][ T2535] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 221.399161][ T2535] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 221.399465][ T2535] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 221.399767][ T2535] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 221.400060][ T2535] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 221.400364][ T2535] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 221.400684][ T2535] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 221.400981][ T2535] ? __create_object (mm/kmemleak.c:771) 
[ 221.401275][ T2535] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 221.401572][ T2535] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 221.401883][ T2535] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 221.402247][ T2535] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 221.402548][ T2535] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 221.402864][ T2535] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 221.403159][ T2535] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 221.403462][ T2535] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 221.403763][ T2535] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 221.404055][ T2535] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 221.404350][ T2535] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 221.404651][ T2535] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 221.404945][ T2535] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 221.405254][ T2535] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 221.405553][ T2535] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 221.405863][ T2535] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 221.406160][ T2535] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 221.406466][ T2535] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 221.406767][ T2535] ? 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) 
[ 221.407063][ T2535] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 221.407370][ T2535] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 221.407672][ T2535] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 221.407971][ T2535] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 221.408268][ T2535] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 221.408560][ T2535] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 221.408866][ T2535] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 221.409165][ T2535] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 221.409482][ T2535] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 221.409876][ T2535] ___sys_sendmsg (net/socket.c:2670) 
[ 221.410174][ T2535] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 221.410466][ T2535] ? __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) 
[ 221.410839][ T2535] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 221.411137][ T2535] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 221.411440][ T2535] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 221.411758][ T2535] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 221.412050][ T2535] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 221.412343][ T2535] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 221.412652][ T2535] __sys_sendmsg (net/socket.c:2700) 
[ 221.412942][ T2535] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 221.413306][ T2535] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 221.413634][ T2535] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 221.413950][ T2535] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 221.414246][ T2535] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  221.414617][ T2535] RIP: 0033:0x7f00ed0851e7
[ 221.414920][ T2535] 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)
[  221.415974][ T2535] RSP: 002b:00007ffd86c20088 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  221.416428][ T2535] RAX: ffffffffffffffda RBX: 00007ffd86c207c0 RCX: 00007f00ed0851e7
[  221.416875][ T2535] RDX: 0000000000000000 RSI: 00007ffd86c200f0 RDI: 0000000000000005
[  221.417314][ T2535] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  221.417767][ T2535] R10: 00000000157a5910 R11: 0000000000000246 R12: 0000000000000003
[  221.418215][ T2535] R13: 00000000686e7028 R14: 0000000000499600 R15: 0000000000000000
| [  222.994648][ T2561] ------------[ cut here ]------------
| [ 222.994974][ T2561] WARNING: CPU: 2 PID: 2561 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) 
| [  222.995565][ T2561] Modules linked in: vxlan
| [  222.996537][ T2561] Tainted: [W]=WARN
[  222.996792][ T2561] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 222.997174][ T2561] 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) 
[ 222.997489][ T2561] 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
[  222.998574][ T2561] RSP: 0018:ffffc900055d6ef0 EFLAGS: 00010246
[  222.998971][ T2561] RAX: 0000000000000000 RBX: ffff88800e262000 RCX: 0000000000000001
[  222.999433][ T2561] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  222.999903][ T2561] RBP: ffffc900055d6fd8 R08: 0000000000000000 R09: 0000000000000000
[  223.000355][ T2561] R10: ffffc900055d7008 R11: ffffffffaceceab8 R12: 1ffff92000abade2
[  223.000817][ T2561] R13: 0000000000000596 R14: ffffc900055d7008 R15: ffff88800e262f48
[  223.001272][ T2561] FS:  00007f94f4b4e800(0000) GS:ffff8880bee99000(0000) knlGS:0000000000000000
[  223.001818][ T2561] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  223.002203][ T2561] CR2: 00000000004e6898 CR3: 000000001060a001 CR4: 0000000000772ef0
[  223.002682][ T2561] PKRU: 55555554
[  223.002921][ T2561] Call Trace:
[  223.003153][ T2561]  <TASK>
[ 223.003318][ T2561] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 223.003799][ T2561] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 223.004230][ T2561] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 223.004620][ T2561] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 223.004929][ T2561] netif_set_mtu (net/core/dev.c:9652) 
[ 223.005237][ T2561] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 223.005551][ T2561] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 223.005947][ T2561] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 223.006183][ T2561] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 223.006501][ T2561] br_add_if (net/bridge/br_if.c:697) 
[ 223.006769][ T2561] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 223.007078][ T2561] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 223.007387][ T2561] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 223.007710][ T2561] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 223.008096][ T2561] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 223.008402][ T2561] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 223.008720][ T2561] ? __kernel_text_address (kernel/extable.c:79) 
[ 223.009032][ T2561] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 223.009341][ T2561] ? __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) 
[ 223.009670][ T2561] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 223.010045][ T2561] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 223.010354][ T2561] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 223.010677][ T2561] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 223.010990][ T2561] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 223.011294][ T2561] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 223.011603][ T2561] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 223.011916][ T2561] ? __create_object (mm/kmemleak.c:771) 
[ 223.012224][ T2561] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 223.012533][ T2561] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 223.012852][ T2561] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 223.013228][ T2561] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 223.013549][ T2561] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 223.013873][ T2561] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 223.014180][ T2561] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 223.014494][ T2561] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 223.014821][ T2561] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 223.015124][ T2561] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 223.015431][ T2561] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 223.015744][ T2561] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 223.016061][ T2561] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 223.016369][ T2561] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 223.016692][ T2561] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 223.016997][ T2561] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 223.017302][ T2561] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 223.017631][ T2561] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 223.017939][ T2561] ? 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) 
[ 223.018251][ T2561] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 223.018560][ T2561] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 223.018883][ T2561] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 223.019205][ T2561] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 223.019523][ T2561] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 223.019841][ T2561] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 223.020153][ T2561] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 223.020470][ T2561] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 223.020786][ T2561] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 223.021175][ T2561] ___sys_sendmsg (net/socket.c:2670) 
[ 223.021481][ T2561] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 223.021799][ T2561] ? __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) 
[ 223.022180][ T2561] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 223.022488][ T2561] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 223.022824][ T2561] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 223.023142][ T2561] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 223.023455][ T2561] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 223.023771][ T2561] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 223.024086][ T2561] __sys_sendmsg (net/socket.c:2700) 
[ 223.024390][ T2561] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 223.024778][ T2561] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 223.025104][ T2561] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 223.025412][ T2561] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 223.025734][ T2561] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  223.026110][ T2561] RIP: 0033:0x7f94f4d1b1e7
[ 223.026423][ T2561] 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)
[  223.027514][ T2561] RSP: 002b:00007fffad4138e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  223.027988][ T2561] RAX: ffffffffffffffda RBX: 00007fffad414020 RCX: 00007f94f4d1b1e7
[  223.028439][ T2561] RDX: 0000000000000000 RSI: 00007fffad413950 RDI: 0000000000000005
[  223.028899][ T2561] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  223.029357][ T2561] R10: 000000001c09e910 R11: 0000000000000246 R12: 0000000000000003
[  223.029832][ T2561] R13: 00000000686e702a R14: 0000000000499600 R15: 0000000000000000
| [  226.615765][ T2612] ------------[ cut here ]------------
| [ 226.616086][ T2612] WARNING: CPU: 0 PID: 2612 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) 
| [  226.616707][ T2612] Modules linked in: vxlan
| [  226.617680][ T2612] Tainted: [W]=WARN
[  226.617921][ T2612] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 226.618311][ T2612] 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) 
[ 226.618642][ T2612] 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
[  226.619823][ T2612] RSP: 0018:ffffc900057a6ef0 EFLAGS: 00010246
[  226.620222][ T2612] RAX: 0000000000000000 RBX: ffff888012b82000 RCX: 0000000000000001
[  226.620701][ T2612] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  226.621171][ T2612] RBP: ffffc900057a6fd8 R08: 0000000000000000 R09: 0000000000000000
[  226.621673][ T2612] R10: ffffc900057a7008 R11: ffffffffac58d1e0 R12: 1ffff92000af4de2
[  226.622155][ T2612] R13: 00000000000005dc R14: ffffc900057a7008 R15: ffff888012b82f48
[  226.622630][ T2612] FS:  00007f8a8b847800(0000) GS:ffff8880bed99000(0000) knlGS:0000000000000000
[  226.623178][ T2612] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  226.623586][ T2612] CR2: 00000000004e68a0 CR3: 000000001300d001 CR4: 0000000000772ef0
[  226.624064][ T2612] PKRU: 55555554
[  226.624301][ T2612] Call Trace:
[  226.624535][ T2612]  <TASK>
[ 226.624705][ T2612] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 226.625021][ T2612] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 226.625348][ T2612] netif_set_mtu (net/core/dev.c:9652) 
[ 226.625671][ T2612] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 226.626006][ T2612] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 226.626244][ T2612] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 226.626562][ T2612] br_add_if (net/bridge/br_if.c:697) 
[ 226.626814][ T2612] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 226.627126][ T2612] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 226.627440][ T2612] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 226.627763][ T2612] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 226.628167][ T2612] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 226.628478][ T2612] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 226.628795][ T2612] ? __kernel_text_address (kernel/extable.c:79) 
[ 226.629109][ T2612] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 226.629437][ T2612] ? __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) 
[ 226.629759][ T2612] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 226.630147][ T2612] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 226.630468][ T2612] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 226.630830][ T2612] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 226.631142][ T2612] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 226.631455][ T2612] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 226.631776][ T2612] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 226.632091][ T2612] ? __create_object (mm/kmemleak.c:771) 
[ 226.632404][ T2612] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 226.632725][ T2612] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 226.633047][ T2612] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 226.633435][ T2612] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 226.633761][ T2612] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 226.634081][ T2612] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 226.634394][ T2612] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 226.634720][ T2612] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 226.635034][ T2612] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 226.635349][ T2612] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 226.635669][ T2612] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 226.635981][ T2612] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 226.636300][ T2612] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 226.636628][ T2612] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 226.636950][ T2612] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 226.637264][ T2612] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 226.637579][ T2612] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 226.637916][ T2612] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 226.638227][ T2612] ? 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) 
[ 226.638541][ T2612] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 226.638863][ T2612] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 226.639174][ T2612] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 226.639496][ T2612] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 226.639804][ T2612] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 226.640108][ T2612] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 226.640408][ T2612] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 226.640714][ T2612] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 226.641005][ T2612] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 226.641381][ T2612] ___sys_sendmsg (net/socket.c:2670) 
[ 226.641705][ T2612] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 226.642001][ T2612] ? __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) 
[ 226.642376][ T2612] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 226.642681][ T2612] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 226.642980][ T2612] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 226.643491][ T2612] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 226.643798][ T2612] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 226.644095][ T2612] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 226.644484][ T2612] __sys_sendmsg (net/socket.c:2700) 
[ 226.644806][ T2612] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 226.645174][ T2612] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 226.645481][ T2612] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 226.645792][ T2612] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 226.646091][ T2612] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  226.646456][ T2612] RIP: 0033:0x7f8a8ba141e7
[ 226.646769][ T2612] 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)
[  226.647986][ T2612] RSP: 002b:00007fffd7f9fa88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  226.648434][ T2612] RAX: ffffffffffffffda RBX: 00007fffd7fa01c0 RCX: 00007f8a8ba141e7
[  226.648908][ T2612] RDX: 0000000000000000 RSI: 00007fffd7f9faf0 RDI: 0000000000000005
[  226.649392][ T2612] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  226.649846][ T2612] R10: 00000000164b3910 R11: 0000000000000246 R12: 0000000000000003
[  226.650288][ T2612] R13: 00000000686e702e R14: 0000000000499600 R15: 0000000000000000
| [  228.271292][ T2638] ------------[ cut here ]------------
| [ 228.272546][ T2638] WARNING: CPU: 2 PID: 2638 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) 
| [  228.273163][ T2638] Modules linked in: vxlan
| [  228.274118][ T2638] Tainted: [W]=WARN
[  228.274355][ T2638] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 228.274800][ T2638] 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) 
[ 228.275136][ T2638] 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
[  228.276203][ T2638] RSP: 0018:ffffc90005866ef0 EFLAGS: 00010246
[  228.276589][ T2638] RAX: 0000000000000000 RBX: ffff888012b82000 RCX: 0000000000000001
[  228.277304][ T2638] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  228.277905][ T2638] RBP: ffffc90005866fd8 R08: 0000000000000000 R09: 0000000000000000
[  228.278528][ T2638] R10: ffffc90005867008 R11: ffffffffac58d1e0 R12: 1ffff92000b0cde2
[  228.279143][ T2638] R13: 00000000000005aa R14: ffffc90005867008 R15: ffff888012b82f48
[  228.279628][ T2638] FS:  00007fe6b0a41800(0000) GS:ffff8880bee99000(0000) knlGS:0000000000000000
[  228.280160][ T2638] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  228.280544][ T2638] CR2: 00000000004e68a0 CR3: 000000000c95a002 CR4: 0000000000772ef0
[  228.281026][ T2638] PKRU: 55555554
[  228.281269][ T2638] Call Trace:
[  228.281504][ T2638]  <TASK>
[ 228.281682][ T2638] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 228.281999][ T2638] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 228.282320][ T2638] netif_set_mtu (net/core/dev.c:9652) 
[ 228.282681][ T2638] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 228.283005][ T2638] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 228.283240][ T2638] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 228.283554][ T2638] br_add_if (net/bridge/br_if.c:697) 
[ 228.283811][ T2638] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 228.284124][ T2638] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 228.284437][ T2638] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 228.284773][ T2638] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 228.285173][ T2638] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 228.285480][ T2638] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 228.285810][ T2638] ? __kernel_text_address (kernel/extable.c:79) 
[ 228.286123][ T2638] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 228.286436][ T2638] ? __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) 
[ 228.286795][ T2638] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 228.287177][ T2638] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 228.287489][ T2638] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 228.287807][ T2638] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 228.288116][ T2638] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 228.288424][ T2638] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 228.288761][ T2638] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 228.289074][ T2638] ? __create_object (mm/kmemleak.c:771) 
[ 228.289390][ T2638] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 228.289713][ T2638] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 228.290024][ T2638] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 228.290399][ T2638] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 228.290763][ T2638] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 228.291080][ T2638] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 228.291394][ T2638] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 228.291721][ T2638] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 228.292033][ T2638] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 228.292337][ T2638] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 228.292673][ T2638] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 228.292986][ T2638] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 228.293294][ T2638] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 228.293617][ T2638] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 228.293934][ T2638] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 228.294243][ T2638] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 228.294585][ T2638] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 228.294919][ T2638] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 228.295227][ T2638] ? 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) 
[ 228.295535][ T2638] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 228.295861][ T2638] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 228.296171][ T2638] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 228.296484][ T2638] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 228.296813][ T2638] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 228.297124][ T2638] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 228.297437][ T2638] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 228.297759][ T2638] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 228.298062][ T2638] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 228.298457][ T2638] ___sys_sendmsg (net/socket.c:2670) 
[ 228.298806][ T2638] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 228.299117][ T2638] ? __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) 
[ 228.299508][ T2638] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 228.299835][ T2638] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 228.300146][ T2638] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 228.300458][ T2638] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 228.300791][ T2638] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 228.301108][ T2638] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 228.301421][ T2638] __sys_sendmsg (net/socket.c:2700) 
[ 228.301738][ T2638] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 228.302122][ T2638] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 228.302448][ T2638] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 228.302799][ T2638] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 228.303117][ T2638] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  228.303492][ T2638] RIP: 0033:0x7fe6b0c0e1e7
[ 228.303826][ T2638] 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)
[  228.304905][ T2638] RSP: 002b:00007ffd34a02298 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  228.305382][ T2638] RAX: ffffffffffffffda RBX: 00007ffd34a029d0 RCX: 00007fe6b0c0e1e7
[  228.305851][ T2638] RDX: 0000000000000000 RSI: 00007ffd34a02300 RDI: 0000000000000005
[  228.306311][ T2638] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  228.306813][ T2638] R10: 000000002326f910 R11: 0000000000000246 R12: 0000000000000003
[  228.307275][ T2638] R13: 00000000686e702f R14: 0000000000499600 R15: 0000000000000000
| [  230.257089][ T2664] ------------[ cut here ]------------
| [ 230.257449][ T2664] WARNING: CPU: 0 PID: 2664 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) 
| [  230.258126][ T2664] Modules linked in: vxlan
| [  230.259162][ T2664] Tainted: [W]=WARN
[  230.259428][ T2664] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 230.259885][ T2664] 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) 
[ 230.260240][ T2664] 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
[  230.261448][ T2664] RSP: 0018:ffffc900056a6ef0 EFLAGS: 00010246
[  230.261883][ T2664] RAX: 0000000000000000 RBX: ffff888012b82000 RCX: 0000000000000001
[  230.262393][ T2664] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  230.262904][ T2664] RBP: ffffc900056a6fd8 R08: 0000000000000000 R09: 0000000000000000
[  230.263418][ T2664] R10: ffffc900056a7008 R11: ffffffffac58d1e0 R12: 1ffff92000ad4de2
[  230.263935][ T2664] R13: 0000000000000596 R14: ffffc900056a7008 R15: ffff888012b82f48
[  230.264446][ T2664] FS:  00007f32a2940800(0000) GS:ffff8880bed99000(0000) knlGS:0000000000000000
[  230.265043][ T2664] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  230.265464][ T2664] CR2: 00000000004e68a0 CR3: 000000000efa4002 CR4: 0000000000772ef0
[  230.265989][ T2664] PKRU: 55555554
[  230.266242][ T2664] Call Trace:
[  230.266493][ T2664]  <TASK>
[ 230.266675][ T2664] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 230.267018][ T2664] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 230.267363][ T2664] netif_set_mtu (net/core/dev.c:9652) 
[ 230.267709][ T2664] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 230.268065][ T2664] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 230.268322][ T2664] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 230.268672][ T2664] br_add_if (net/bridge/br_if.c:697) 
[ 230.268938][ T2664] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 230.269270][ T2664] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 230.269640][ T2664] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 230.269986][ T2664] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 230.270411][ T2664] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 230.270753][ T2664] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 230.271087][ T2664] ? __kernel_text_address (kernel/extable.c:79) 
[ 230.271434][ T2664] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 230.271783][ T2664] ? __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) 
[ 230.272120][ T2664] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 230.272535][ T2664] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 230.272882][ T2664] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 230.273218][ T2664] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 230.273564][ T2664] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 230.273994][ T2664] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 230.274296][ T2664] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 230.274590][ T2664] ? __create_object (mm/kmemleak.c:771) 
[ 230.274895][ T2664] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 230.275191][ T2664] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 230.275486][ T2664] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 230.275870][ T2664] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 230.276172][ T2664] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 230.276474][ T2664] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 230.276776][ T2664] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 230.277081][ T2664] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 230.277375][ T2664] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 230.277677][ T2664] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 230.277975][ T2664] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 230.278277][ T2664] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 230.278575][ T2664] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 230.278883][ T2664] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 230.279187][ T2664] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 230.279492][ T2664] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 230.279799][ T2664] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 230.280107][ T2664] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 230.280405][ T2664] ? 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) 
[ 230.280714][ T2664] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 230.281012][ T2664] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 230.281306][ T2664] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 230.281620][ T2664] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 230.281918][ T2664] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 230.282213][ T2664] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 230.282520][ T2664] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 230.282828][ T2664] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 230.283121][ T2664] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 230.283520][ T2664] ___sys_sendmsg (net/socket.c:2670) 
[ 230.283825][ T2664] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 230.284117][ T2664] ? __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) 
[ 230.284487][ T2664] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 230.284799][ T2664] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 230.285097][ T2664] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 230.285399][ T2664] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 230.285706][ T2664] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 230.286001][ T2664] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 230.286302][ T2664] __sys_sendmsg (net/socket.c:2700) 
[ 230.286595][ T2664] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 230.286972][ T2664] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 230.287290][ T2664] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 230.287587][ T2664] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 230.287893][ T2664] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  230.288257][ T2664] RIP: 0033:0x7f32a2b0d1e7
[ 230.288562][ T2664] 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)
[  230.289651][ T2664] RSP: 002b:00007fff3cbd53d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  230.290099][ T2664] RAX: ffffffffffffffda RBX: 00007fff3cbd5b10 RCX: 00007f32a2b0d1e7
[  230.290540][ T2664] RDX: 0000000000000000 RSI: 00007fff3cbd5440 RDI: 0000000000000005
[  230.290988][ T2664] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  230.291437][ T2664] R10: 000000002e5ed910 R11: 0000000000000246 R12: 0000000000000003
[  230.291886][ T2664] R13: 00000000686e7031 R14: 0000000000499600 R15: 0000000000000000
| [  232.207299][ T2690] ------------[ cut here ]------------
| [ 232.207593][ T2690] WARNING: CPU: 3 PID: 2690 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) 
| [  232.208192][ T2690] Modules linked in: vxlan
| [  232.209096][ T2690] Tainted: [W]=WARN
[  232.209321][ T2690] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 232.209718][ T2690] 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) 
[ 232.210029][ T2690] 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
[  232.211096][ T2690] RSP: 0018:ffffc90005996ef0 EFLAGS: 00010246
[  232.211469][ T2690] RAX: 0000000000000000 RBX: ffff888012b82000 RCX: 0000000000000001
[  232.211916][ T2690] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  232.212357][ T2690] RBP: ffffc90005996fd8 R08: 0000000000000000 R09: 0000000000000000
[  232.212807][ T2690] R10: ffffc90005997008 R11: ffffffffaceceab8 R12: 1ffff92000b32de2
[  232.213247][ T2690] R13: 0000000000000596 R14: ffffc90005997008 R15: ffff888012b82f48
[  232.213711][ T2690] FS:  00007fcec2454800(0000) GS:ffff8880bef19000(0000) knlGS:0000000000000000
[  232.214227][ T2690] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  232.214614][ T2690] CR2: 00000000004e68a0 CR3: 0000000011419005 CR4: 0000000000772ef0
[  232.215059][ T2690] PKRU: 55555554
[  232.215280][ T2690] Call Trace:
[  232.215502][ T2690]  <TASK>
[ 232.215690][ T2690] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 232.215995][ T2690] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 232.216291][ T2690] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 232.216666][ T2690] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 232.216970][ T2690] netif_set_mtu (net/core/dev.c:9652) 
[ 232.217265][ T2690] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 232.217572][ T2690] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 232.217951][ T2690] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 232.218175][ T2690] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 232.218475][ T2690] br_add_if (net/bridge/br_if.c:697) 
[ 232.218716][ T2690] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 232.219024][ T2690] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 232.219321][ T2690] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 232.219647][ T2690] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 232.220023][ T2690] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 232.220319][ T2690] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 232.220619][ T2690] ? __kernel_text_address (kernel/extable.c:79) 
[ 232.220916][ T2690] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 232.221220][ T2690] ? __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) 
[ 232.221516][ T2690] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 232.221893][ T2690] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 232.222190][ T2690] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 232.222481][ T2690] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 232.222782][ T2690] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 232.223077][ T2690] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 232.223376][ T2690] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 232.223676][ T2690] ? __create_object (mm/kmemleak.c:771) 
[ 232.223971][ T2690] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 232.224265][ T2690] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 232.224560][ T2690] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 232.224932][ T2690] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 232.225238][ T2690] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 232.225539][ T2690] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 232.225853][ T2690] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 232.226153][ T2690] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 232.226445][ T2690] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 232.226746][ T2690] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 232.227044][ T2690] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 232.227339][ T2690] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 232.227645][ T2690] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 232.227951][ T2690] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 232.228252][ T2690] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 232.228546][ T2690] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 232.228854][ T2690] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 232.229162][ T2690] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 232.229463][ T2690] ? 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) 
[ 232.229762][ T2690] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 232.230067][ T2690] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 232.230361][ T2690] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 232.230669][ T2690] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 232.230966][ T2690] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 232.231261][ T2690] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 232.231563][ T2690] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 232.231870][ T2690] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 232.232165][ T2690] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 232.232550][ T2690] ___sys_sendmsg (net/socket.c:2670) 
[ 232.232850][ T2690] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 232.233144][ T2690] ? __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) 
[ 232.233510][ T2690] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 232.233818][ T2690] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 232.234122][ T2690] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 232.234422][ T2690] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 232.234734][ T2690] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 232.235027][ T2690] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 232.235333][ T2690] __sys_sendmsg (net/socket.c:2700) 
[ 232.235634][ T2690] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 232.236001][ T2690] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 232.236309][ T2690] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 232.236617][ T2690] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 232.236921][ T2690] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  232.237284][ T2690] RIP: 0033:0x7fcec26211e7
[ 232.237591][ T2690] 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)
[  232.238653][ T2690] RSP: 002b:00007ffdc34cd088 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  232.239107][ T2690] RAX: ffffffffffffffda RBX: 00007ffdc34cd7c0 RCX: 00007fcec26211e7
[  232.239561][ T2690] RDX: 0000000000000000 RSI: 00007ffdc34cd0f0 RDI: 0000000000000005
[  232.240009][ T2690] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  232.240450][ T2690] R10: 0000000037034910 R11: 0000000000000246 R12: 0000000000000003
[  232.240907][ T2690] R13: 00000000686e7033 R14: 0000000000499600 R15: 0000000000000000
| [  234.068149][ T2715] ------------[ cut here ]------------
| [ 234.068450][ T2715] WARNING: CPU: 0 PID: 2715 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) 
| [  234.069051][ T2715] Modules linked in: vxlan
| [  234.069984][ T2715] Tainted: [W]=WARN
[  234.070212][ T2715] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 234.070584][ T2715] 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) 
[ 234.070897][ T2715] 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
[  234.071974][ T2715] RSP: 0018:ffffc90005a96ef0 EFLAGS: 00010246
[  234.072357][ T2715] RAX: 0000000000000000 RBX: ffff8880133e2000 RCX: 0000000000000001
[  234.072823][ T2715] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  234.073270][ T2715] RBP: ffffc90005a96fd8 R08: 0000000000000000 R09: 0000000000000000
[  234.073739][ T2715] R10: ffffc90005a97008 R11: ffffffffac58d1e0 R12: 1ffff92000b52de2
[  234.074191][ T2715] R13: 00000000000005dc R14: ffffc90005a97008 R15: ffff8880133e2f48
[  234.074656][ T2715] FS:  00007f4bad5d3800(0000) GS:ffff8880bed99000(0000) knlGS:0000000000000000
[  234.075187][ T2715] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  234.075563][ T2715] CR2: 00000000004e6890 CR3: 000000000d6d4004 CR4: 0000000000772ef0
[  234.076019][ T2715] PKRU: 55555554
[  234.076242][ T2715] Call Trace:
[  234.076467][ T2715]  <TASK>
[ 234.076631][ T2715] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 234.076935][ T2715] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 234.077250][ T2715] netif_set_mtu (net/core/dev.c:9652) 
[ 234.077548][ T2715] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 234.077870][ T2715] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 234.078097][ T2715] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 234.078400][ T2715] br_add_if (net/bridge/br_if.c:697) 
[ 234.078649][ T2715] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 234.078946][ T2715] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 234.079252][ T2715] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 234.079563][ T2715] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 234.079949][ T2715] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 234.080247][ T2715] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 234.080543][ T2715] ? __kernel_text_address (kernel/extable.c:79) 
[ 234.080852][ T2715] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 234.081154][ T2715] ? __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) 
[ 234.081461][ T2715] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 234.081842][ T2715] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 234.082142][ T2715] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 234.082438][ T2715] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 234.082746][ T2715] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 234.083045][ T2715] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 234.083343][ T2715] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 234.083655][ T2715] ? __create_object (mm/kmemleak.c:771) 
[ 234.083956][ T2715] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 234.084257][ T2715] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 234.084558][ T2715] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 234.084936][ T2715] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 234.085244][ T2715] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 234.085547][ T2715] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 234.085855][ T2715] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 234.086164][ T2715] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 234.086460][ T2715] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 234.086762][ T2715] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 234.087068][ T2715] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 234.087365][ T2715] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 234.087672][ T2715] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 234.087974][ T2715] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 234.088275][ T2715] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 234.088579][ T2715] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 234.088888][ T2715] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 234.089200][ T2715] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 234.089511][ T2715] ? 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) 
[ 234.089820][ T2715] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 234.090123][ T2715] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 234.090427][ T2715] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 234.090741][ T2715] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 234.091045][ T2715] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 234.091345][ T2715] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 234.091657][ T2715] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 234.091958][ T2715] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 234.092256][ T2715] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 234.092651][ T2715] ___sys_sendmsg (net/socket.c:2670) 
[ 234.092954][ T2715] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 234.093257][ T2715] ? __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) 
[ 234.093640][ T2715] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 234.093944][ T2715] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 234.094247][ T2715] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 234.094553][ T2715] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 234.094858][ T2715] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 234.095160][ T2715] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 234.095473][ T2715] __sys_sendmsg (net/socket.c:2700) 
[ 234.095782][ T2715] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 234.096153][ T2715] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 234.096466][ T2715] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 234.096775][ T2715] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 234.097074][ T2715] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  234.097450][ T2715] RIP: 0033:0x7f4bad7a01e7
[ 234.097767][ T2715] 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)
[  234.098841][ T2715] RSP: 002b:00007ffc210f7b88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  234.099290][ T2715] RAX: ffffffffffffffda RBX: 00007ffc210f82c0 RCX: 00007f4bad7a01e7
[  234.099759][ T2715] RDX: 0000000000000000 RSI: 00007ffc210f7bf0 RDI: 0000000000000005
[  234.100203][ T2715] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  234.100659][ T2715] R10: 000000003c12a910 R11: 0000000000000246 R12: 0000000000000003
[  234.101103][ T2715] R13: 00000000686e7035 R14: 0000000000499600 R15: 0000000000000000
| [  235.701919][ T2741] ------------[ cut here ]------------
| [ 235.702225][ T2741] WARNING: CPU: 3 PID: 2741 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) 
| [  235.702845][ T2741] Modules linked in: vxlan
| [  235.703790][ T2741] Tainted: [W]=WARN
[  235.704016][ T2741] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 235.704390][ T2741] 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) 
[ 235.704722][ T2741] 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
[  235.705803][ T2741] RSP: 0018:ffffc90005b46ef0 EFLAGS: 00010246
[  235.706186][ T2741] RAX: 0000000000000000 RBX: ffff8880133e2000 RCX: 0000000000000001
[  235.706672][ T2741] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  235.707122][ T2741] RBP: ffffc90005b46fd8 R08: 0000000000000000 R09: 0000000000000000
[  235.707565][ T2741] R10: ffffc90005b47008 R11: ffffffffaceceab8 R12: 1ffff92000b68de2
[  235.708031][ T2741] R13: 00000000000005aa R14: ffffc90005b47008 R15: ffff8880133e2f48
[  235.708480][ T2741] FS:  00007f2a37861800(0000) GS:ffff8880bef19000(0000) knlGS:0000000000000000
[  235.709019][ T2741] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  235.709405][ T2741] CR2: 00000000004e6890 CR3: 0000000005264006 CR4: 0000000000772ef0
[  235.709872][ T2741] PKRU: 55555554
[  235.710104][ T2741] Call Trace:
[  235.710325][ T2741]  <TASK>
[ 235.710478][ T2741] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 235.710808][ T2741] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 235.711108][ T2741] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 235.711476][ T2741] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 235.711799][ T2741] netif_set_mtu (net/core/dev.c:9652) 
[ 235.712096][ T2741] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 235.712407][ T2741] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 235.712801][ T2741] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 235.713029][ T2741] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 235.713330][ T2741] br_add_if (net/bridge/br_if.c:697) 
[ 235.713565][ T2741] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 235.713881][ T2741] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 235.714182][ T2741] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 235.714495][ T2741] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 235.714890][ T2741] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 235.715185][ T2741] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 235.715479][ T2741] ? __kernel_text_address (kernel/extable.c:79) 
[ 235.715798][ T2741] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 235.716099][ T2741] ? __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) 
[ 235.716396][ T2741] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 235.716798][ T2741] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 235.717097][ T2741] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 235.717390][ T2741] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 235.717709][ T2741] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 235.718007][ T2741] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 235.718303][ T2741] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 235.718599][ T2741] ? __create_object (mm/kmemleak.c:771) 
[ 235.718918][ T2741] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 235.719222][ T2741] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 235.719530][ T2741] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 235.719921][ T2741] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 235.720225][ T2741] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 235.720531][ T2741] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 235.720851][ T2741] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 235.721155][ T2741] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 235.721451][ T2741] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 235.721774][ T2741] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 235.722072][ T2741] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 235.722370][ T2741] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 235.722695][ T2741] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 235.722998][ T2741] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 235.723307][ T2741] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 235.723603][ T2741] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 235.723930][ T2741] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 235.724240][ T2741] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 235.724533][ T2741] ? 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) 
[ 235.724856][ T2741] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 235.725159][ T2741] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 235.725451][ T2741] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 235.725777][ T2741] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 235.726085][ T2741] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 235.726382][ T2741] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 235.726711][ T2741] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 235.727010][ T2741] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 235.727303][ T2741] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 235.727705][ T2741] ___sys_sendmsg (net/socket.c:2670) 
[ 235.728001][ T2741] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 235.728304][ T2741] ? __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) 
[ 235.728696][ T2741] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 235.728998][ T2741] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 235.729297][ T2741] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 235.729633][ T2741] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 235.729930][ T2741] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 235.730226][ T2741] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 235.730535][ T2741] __sys_sendmsg (net/socket.c:2700) 
[ 235.730861][ T2741] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 235.731235][ T2741] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 235.731545][ T2741] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 235.731864][ T2741] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 235.732162][ T2741] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  235.732528][ T2741] RIP: 0033:0x7f2a37a2e1e7
[ 235.732864][ T2741] 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)
[  235.733952][ T2741] RSP: 002b:00007ffce064b5d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  235.734399][ T2741] RAX: ffffffffffffffda RBX: 00007ffce064bd10 RCX: 00007f2a37a2e1e7
[  235.734883][ T2741] RDX: 0000000000000000 RSI: 00007ffce064b640 RDI: 0000000000000005
[  235.735327][ T2741] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  235.735795][ T2741] R10: 000000002c9f0910 R11: 0000000000000246 R12: 0000000000000003
[  235.736239][ T2741] R13: 00000000686e7037 R14: 0000000000499600 R15: 0000000000000000
| [  239.714397][ T2791] ------------[ cut here ]------------
| [ 239.714780][ T2791] WARNING: CPU: 2 PID: 2791 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) 
| [  239.715430][ T2791] Modules linked in: vxlan
| [  239.716461][ T2791] Tainted: [W]=WARN
[  239.716735][ T2791] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 239.717167][ T2791] 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) 
[ 239.717536][ T2791] 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
[  239.718683][ T2791] RSP: 0018:ffffc90005c66ef0 EFLAGS: 00010246
[  239.719107][ T2791] RAX: 0000000000000000 RBX: ffff88800dbd2000 RCX: 0000000000000001
[  239.719638][ T2791] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  239.720124][ T2791] RBP: ffffc90005c66fd8 R08: 0000000000000000 R09: 0000000000000000
[  239.720615][ T2791] R10: ffffc90005c67008 R11: ffffffffac58d1e0 R12: 1ffff92000b8cde2
[  239.721112][ T2791] R13: 00000000000005dc R14: ffffc90005c67008 R15: ffff88800dbd2f48
[  239.721626][ T2791] FS:  00007fe4e10ae800(0000) GS:ffff8880bee99000(0000) knlGS:0000000000000000
[  239.722238][ T2791] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  239.722666][ T2791] CR2: 00000000004e6898 CR3: 0000000010448005 CR4: 0000000000772ef0
[  239.723157][ T2791] PKRU: 55555554
[  239.723409][ T2791] Call Trace:
[  239.723824][ T2791]  <TASK>
[ 239.724186][ T2791] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 239.724721][ T2791] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 239.725232][ T2791] netif_set_mtu (net/core/dev.c:9652) 
[ 239.725670][ T2791] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 239.726050][ T2791] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 239.726301][ T2791] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 239.726649][ T2791] br_add_if (net/bridge/br_if.c:697) 
[ 239.726937][ T2791] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 239.727287][ T2791] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 239.727653][ T2791] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 239.728006][ T2791] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 239.728417][ T2791] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 239.728755][ T2791] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 239.729078][ T2791] ? __kernel_text_address (kernel/extable.c:79) 
[ 239.729420][ T2791] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 239.729771][ T2791] ? __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) 
[ 239.730126][ T2791] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 239.730528][ T2791] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 239.730877][ T2791] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 239.731202][ T2791] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 239.731525][ T2791] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 239.731871][ T2791] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 239.732200][ T2791] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 239.732542][ T2791] ? __create_object (mm/kmemleak.c:771) 
[ 239.732910][ T2791] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 239.733241][ T2791] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 239.733584][ T2791] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 239.734018][ T2791] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 239.734366][ T2791] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 239.734719][ T2791] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 239.735054][ T2791] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 239.735385][ T2791] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 239.735737][ T2791] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 239.736060][ T2791] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 239.736388][ T2791] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 239.736723][ T2791] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 239.737074][ T2791] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 239.737401][ T2791] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 239.737754][ T2791] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 239.738101][ T2791] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 239.738447][ T2791] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 239.738798][ T2791] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 239.739117][ T2791] ? 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) 
[ 239.739451][ T2791] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 239.739807][ T2791] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 239.740133][ T2791] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 239.740485][ T2791] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 239.740842][ T2791] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 239.741184][ T2791] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 239.741517][ T2791] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 239.741870][ T2791] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 239.742213][ T2791] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 239.742664][ T2791] ___sys_sendmsg (net/socket.c:2670) 
[ 239.742992][ T2791] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 239.743334][ T2791] ? __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) 
[ 239.743752][ T2791] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 239.744080][ T2791] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 239.744409][ T2791] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 239.744764][ T2791] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 239.745094][ T2791] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 239.745429][ T2791] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 239.745780][ T2791] __sys_sendmsg (net/socket.c:2700) 
[ 239.746115][ T2791] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 239.746519][ T2791] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 239.746865][ T2791] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 239.747292][ T2791] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 239.747627][ T2791] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  239.748037][ T2791] RIP: 0033:0x7fe4e127b1e7
[ 239.748404][ T2791] 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)
[  239.749561][ T2791] RSP: 002b:00007ffe8bd35ab8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  239.750055][ T2791] RAX: ffffffffffffffda RBX: 00007ffe8bd361f0 RCX: 00007fe4e127b1e7
[  239.750553][ T2791] RDX: 0000000000000000 RSI: 00007ffe8bd35b20 RDI: 0000000000000005
[  239.751044][ T2791] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  239.751538][ T2791] R10: 000000002fa2d910 R11: 0000000000000246 R12: 0000000000000003
[  239.752062][ T2791] R13: 00000000686e703b R14: 0000000000499600 R15: 0000000000000000
| [  241.457388][ T2817] ------------[ cut here ]------------
| [ 241.457704][ T2817] WARNING: CPU: 3 PID: 2817 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) 
| [  241.458293][ T2817] Modules linked in: vxlan
| [  241.460013][ T2817] Tainted: [W]=WARN
[  241.460247][ T2817] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 241.460644][ T2817] 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) 
[ 241.460955][ T2817] 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
[  241.462042][ T2817] RSP: 0018:ffffc90005d66ef0 EFLAGS: 00010246
[  241.462424][ T2817] RAX: 0000000000000000 RBX: ffff88800dbd2000 RCX: 0000000000000001
[  241.462885][ T2817] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  241.463334][ T2817] RBP: ffffc90005d66fd8 R08: 0000000000000000 R09: 0000000000000000
[  241.463793][ T2817] R10: ffffc90005d67008 R11: ffffffffac58d1e0 R12: 1ffff92000bacde2
[  241.464245][ T2817] R13: 0000000000000596 R14: ffffc90005d67008 R15: ffff88800dbd2f48
[  241.464704][ T2817] FS:  00007f0d689e2800(0000) GS:ffff8880bef19000(0000) knlGS:0000000000000000
[  241.465232][ T2817] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  241.465617][ T2817] CR2: 00000000004e6898 CR3: 000000000c475006 CR4: 0000000000772ef0
[  241.466078][ T2817] PKRU: 55555554
[  241.466305][ T2817] Call Trace:
[  241.466528][ T2817]  <TASK>
[ 241.466695][ T2817] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 241.467097][ T2817] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 241.467414][ T2817] netif_set_mtu (net/core/dev.c:9652) 
[ 241.467726][ T2817] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 241.468040][ T2817] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 241.468267][ T2817] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 241.468580][ T2817] br_add_if (net/bridge/br_if.c:697) 
[ 241.468830][ T2817] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 241.469134][ T2817] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 241.469449][ T2817] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 241.469771][ T2817] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 241.470154][ T2817] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 241.470455][ T2817] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 241.470770][ T2817] ? __kernel_text_address (kernel/extable.c:79) 
[ 241.471072][ T2817] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 241.471371][ T2817] ? __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) 
[ 241.471689][ T2817] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 241.472063][ T2817] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 241.472366][ T2817] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 241.472672][ T2817] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 241.472979][ T2817] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 241.473280][ T2817] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 241.473578][ T2817] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 241.473905][ T2817] ? __create_object (mm/kmemleak.c:771) 
[ 241.474209][ T2817] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 241.474508][ T2817] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 241.474822][ T2817] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 241.475201][ T2817] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 241.475506][ T2817] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 241.475821][ T2817] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 241.476118][ T2817] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 241.476456][ T2817] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 241.476767][ T2817] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 241.477066][ T2817] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 241.477369][ T2817] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 241.477684][ T2817] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 241.477986][ T2817] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 241.478289][ T2817] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 241.478594][ T2817] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 241.478905][ T2817] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 241.479207][ T2817] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 241.479574][ T2817] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 241.479889][ T2817] ? 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) 
[ 241.480190][ T2817] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 241.480490][ T2817] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 241.480795][ T2817] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 241.481100][ T2817] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 241.481405][ T2817] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 241.481719][ T2817] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 241.482028][ T2817] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 241.482336][ T2817] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 241.482642][ T2817] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 241.483024][ T2817] ___sys_sendmsg (net/socket.c:2670) 
[ 241.483319][ T2817] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 241.483625][ T2817] ? __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) 
[ 241.483997][ T2817] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 241.484307][ T2817] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 241.484619][ T2817] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 241.484924][ T2817] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 241.485220][ T2817] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 241.485517][ T2817] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 241.485834][ T2817] __sys_sendmsg (net/socket.c:2700) 
[ 241.486136][ T2817] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 241.486504][ T2817] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 241.486830][ T2817] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 241.487128][ T2817] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 241.487427][ T2817] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  241.487806][ T2817] RIP: 0033:0x7f0d68baf1e7
[ 241.488115][ T2817] 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)
[  241.489199][ T2817] RSP: 002b:00007ffc2c514f28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  241.489668][ T2817] RAX: ffffffffffffffda RBX: 00007ffc2c515660 RCX: 00007f0d68baf1e7
[  241.490117][ T2817] RDX: 0000000000000000 RSI: 00007ffc2c514f90 RDI: 0000000000000005
[  241.490566][ T2817] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  241.491032][ T2817] R10: 000000002963d910 R11: 0000000000000246 R12: 0000000000000003
[  241.491477][ T2817] R13: 00000000686e703c R14: 0000000000499600 R15: 0000000000000000
| [  245.383936][ T2867] ------------[ cut here ]------------
| [ 245.384254][ T2867] WARNING: CPU: 3 PID: 2867 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) 
| [  245.384901][ T2867] Modules linked in: vxlan
| [  245.385885][ T2867] Tainted: [W]=WARN
[  245.386135][ T2867] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 245.386551][ T2867] 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) 
[ 245.386886][ T2867] 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
[  245.388037][ T2867] RSP: 0018:ffffc90005ea6ef0 EFLAGS: 00010246
[  245.388433][ T2867] RAX: 0000000000000000 RBX: ffff888009f4a000 RCX: 0000000000000001
[  245.388918][ T2867] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  245.389383][ T2867] RBP: ffffc90005ea6fd8 R08: 0000000000000000 R09: 0000000000000000
[  245.389881][ T2867] R10: ffffc90005ea7008 R11: ffffffffac58d1e0 R12: 1ffff92000bd4de2
[  245.390363][ T2867] R13: 00000000000005dc R14: ffffc90005ea7008 R15: ffff888009f4af48
[  245.390858][ T2867] FS:  00007fa9b6310800(0000) GS:ffff8880bef19000(0000) knlGS:0000000000000000
[  245.391416][ T2867] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  245.391821][ T2867] CR2: 00000000004e68a0 CR3: 000000000eb61003 CR4: 0000000000772ef0
[  245.392310][ T2867] PKRU: 55555554
[  245.392543][ T2867] Call Trace:
[  245.392787][ T2867]  <TASK>
[ 245.392948][ T2867] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 245.393287][ T2867] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 245.393639][ T2867] netif_set_mtu (net/core/dev.c:9652) 
[ 245.393952][ T2867] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 245.394294][ T2867] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 245.394548][ T2867] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 245.394873][ T2867] br_add_if (net/bridge/br_if.c:697) 
[ 245.395119][ T2867] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 245.395439][ T2867] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 245.395777][ T2867] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 245.396104][ T2867] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 245.396500][ T2867] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 245.396831][ T2867] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 245.397140][ T2867] ? __kernel_text_address (kernel/extable.c:79) 
[ 245.397462][ T2867] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 245.397805][ T2867] ? __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) 
[ 245.398119][ T2867] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 245.398521][ T2867] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 245.398846][ T2867] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 245.399167][ T2867] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 245.399495][ T2867] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 245.399830][ T2867] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 245.400139][ T2867] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 245.400469][ T2867] ? __create_object (mm/kmemleak.c:771) 
[ 245.400794][ T2867] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 245.401112][ T2867] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 245.401432][ T2867] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 245.401836][ T2867] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 245.402197][ T2867] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 245.402543][ T2867] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 245.402878][ T2867] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 245.403205][ T2867] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 245.403515][ T2867] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 245.403830][ T2867] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 245.404158][ T2867] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 245.404476][ T2867] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 245.404803][ T2867] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 245.405118][ T2867] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 245.405433][ T2867] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 245.405753][ T2867] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 245.406068][ T2867] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 245.406393][ T2867] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 245.406727][ T2867] ? 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) 
[ 245.407045][ T2867] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 245.407360][ T2867] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 245.407679][ T2867] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 245.407998][ T2867] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 245.408313][ T2867] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 245.408644][ T2867] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 245.408975][ T2867] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 245.409292][ T2867] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 245.409631][ T2867] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 245.410049][ T2867] ___sys_sendmsg (net/socket.c:2670) 
[ 245.410375][ T2867] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 245.410722][ T2867] ? __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) 
[ 245.411135][ T2867] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 245.411468][ T2867] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 245.411805][ T2867] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 245.412127][ T2867] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 245.412436][ T2867] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 245.412756][ T2867] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 245.413073][ T2867] __sys_sendmsg (net/socket.c:2700) 
[ 245.413384][ T2867] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 245.413785][ T2867] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 245.414104][ T2867] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 245.414416][ T2867] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 245.414737][ T2867] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  245.415125][ T2867] RIP: 0033:0x7fa9b64dd1e7
[ 245.415447][ T2867] 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)
[  245.416603][ T2867] RSP: 002b:00007fff16614f68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  245.417094][ T2867] RAX: ffffffffffffffda RBX: 00007fff166156a0 RCX: 00007fa9b64dd1e7
[  245.417558][ T2867] RDX: 0000000000000000 RSI: 00007fff16614fd0 RDI: 0000000000000005
[  245.418031][ T2867] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  245.418501][ T2867] R10: 000000002b7e0910 R11: 0000000000000246 R12: 0000000000000003
[  245.418976][ T2867] R13: 00000000686e7040 R14: 0000000000499600 R15: 0000000000000000
| [  247.124297][ T2893] ------------[ cut here ]------------
| [ 247.124630][ T2893] WARNING: CPU: 0 PID: 2893 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) 
| [  247.125256][ T2893] Modules linked in: vxlan
| [  247.126222][ T2893] Tainted: [W]=WARN
[  247.126461][ T2893] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 247.126856][ T2893] 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) 
[ 247.127177][ T2893] 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
[  247.129479][ T2893] RSP: 0018:ffffc90005f56ef0 EFLAGS: 00010246
[  247.129867][ T2893] RAX: 0000000000000000 RBX: ffff888009f4a000 RCX: 0000000000000001
[  247.130305][ T2893] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  247.130761][ T2893] RBP: ffffc90005f56fd8 R08: 0000000000000000 R09: 0000000000000000
[  247.131204][ T2893] R10: ffffc90005f57008 R11: ffffffffaceceab8 R12: 1ffff92000beade2
[  247.131653][ T2893] R13: 00000000000005aa R14: ffffc90005f57008 R15: ffff888009f4af48
[  247.132095][ T2893] FS:  00007f93286e0800(0000) GS:ffff8880bed99000(0000) knlGS:0000000000000000
[  247.132617][ T2893] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  247.132992][ T2893] CR2: 00000000004e68a0 CR3: 000000001362e005 CR4: 0000000000772ef0
[  247.133433][ T2893] PKRU: 55555554
[  247.133665][ T2893] Call Trace:
[  247.133884][ T2893]  <TASK>
[ 247.134037][ T2893] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 247.134336][ T2893] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 247.134651][ T2893] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 247.135039][ T2893] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 247.135358][ T2893] netif_set_mtu (net/core/dev.c:9652) 
[ 247.135677][ T2893] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 247.136001][ T2893] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 247.136384][ T2893] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 247.136623][ T2893] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 247.136930][ T2893] br_add_if (net/bridge/br_if.c:697) 
[ 247.137162][ T2893] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 247.137464][ T2893] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 247.137783][ T2893] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 247.138084][ T2893] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 247.138460][ T2893] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 247.138784][ T2893] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 247.139077][ T2893] ? __kernel_text_address (kernel/extable.c:79) 
[ 247.139373][ T2893] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 247.139695][ T2893] ? __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) 
[ 247.139994][ T2893] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 247.140357][ T2893] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 247.140663][ T2893] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 247.140959][ T2893] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 247.141252][ T2893] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 247.141551][ T2893] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 247.141860][ T2893] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 247.142153][ T2893] ? __create_object (mm/kmemleak.c:771) 
[ 247.142452][ T2893] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 247.142757][ T2893] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 247.143059][ T2893] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 247.143422][ T2893] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 247.143751][ T2893] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 247.144067][ T2893] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 247.144379][ T2893] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 247.144698][ T2893] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 247.144995][ T2893] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 247.145288][ T2893] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 247.145586][ T2893] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 247.145892][ T2893] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 247.146191][ T2893] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 247.146498][ T2893] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 247.146805][ T2893] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 247.147100][ T2893] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 247.147394][ T2893] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 247.147709][ T2893] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 247.148002][ T2893] ? 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) 
[ 247.148295][ T2893] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 247.148614][ T2893] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 247.148908][ T2893] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 247.149206][ T2893] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 247.149514][ T2893] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 247.149819][ T2893] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 247.150122][ T2893] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 247.150420][ T2893] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 247.150719][ T2893] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 247.151101][ T2893] ___sys_sendmsg (net/socket.c:2670) 
[ 247.151393][ T2893] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 247.151695][ T2893] ? __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) 
[ 247.152062][ T2893] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 247.152361][ T2893] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 247.152668][ T2893] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 247.152970][ T2893] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 247.153277][ T2893] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 247.153580][ T2893] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 247.153903][ T2893] __sys_sendmsg (net/socket.c:2700) 
[ 247.154196][ T2893] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 247.154563][ T2893] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 247.154878][ T2893] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 247.155176][ T2893] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 247.155482][ T2893] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  247.155855][ T2893] RIP: 0033:0x7f93288ad1e7
[ 247.156159][ T2893] 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)
[  247.157223][ T2893] RSP: 002b:00007ffd7fbf7188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  247.157698][ T2893] RAX: ffffffffffffffda RBX: 00007ffd7fbf78c0 RCX: 00007f93288ad1e7
[  247.158185][ T2893] RDX: 0000000000000000 RSI: 00007ffd7fbf71f0 RDI: 0000000000000005
[  247.158641][ T2893] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  247.159085][ T2893] R10: 0000000011516910 R11: 0000000000000246 R12: 0000000000000003
[  247.159548][ T2893] R13: 00000000686e7042 R14: 0000000000499600 R15: 0000000000000000
| [  249.284160][ T2919] ------------[ cut here ]------------
| [ 249.284524][ T2919] WARNING: CPU: 3 PID: 2919 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) 
| [  249.285203][ T2919] Modules linked in: vxlan
| [  249.286453][ T2919] Tainted: [W]=WARN
[  249.286721][ T2919] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 249.287139][ T2919] 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) 
[ 249.287478][ T2919] 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
[  249.288656][ T2919] RSP: 0018:ffffc90005ed6ef0 EFLAGS: 00010246
[  249.289073][ T2919] RAX: 0000000000000000 RBX: ffff888009f4a000 RCX: 0000000000000001
[  249.289592][ T2919] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  249.290081][ T2919] RBP: ffffc90005ed6fd8 R08: 0000000000000000 R09: 0000000000000000
[  249.290551][ T2919] R10: ffffc90005ed7008 R11: ffffffffac58d1e0 R12: 1ffff92000bdade2
[  249.291086][ T2919] R13: 0000000000000596 R14: ffffc90005ed7008 R15: ffff888009f4af48
[  249.291567][ T2919] FS:  00007f2553234800(0000) GS:ffff8880bef19000(0000) knlGS:0000000000000000
[  249.292129][ T2919] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  249.292554][ T2919] CR2: 00000000004e68a0 CR3: 000000000fedf002 CR4: 0000000000772ef0
[  249.293092][ T2919] PKRU: 55555554
[  249.293333][ T2919] Call Trace:
[  249.293567][ T2919]  <TASK>
[ 249.293752][ T2919] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 249.294076][ T2919] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 249.294422][ T2919] netif_set_mtu (net/core/dev.c:9652) 
[ 249.294750][ T2919] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 249.295078][ T2919] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 249.295319][ T2919] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 249.295649][ T2919] br_add_if (net/bridge/br_if.c:697) 
[ 249.295912][ T2919] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 249.296225][ T2919] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 249.296570][ T2919] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 249.296922][ T2919] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 249.297368][ T2919] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 249.297704][ T2919] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 249.298033][ T2919] ? __kernel_text_address (kernel/extable.c:79) 
[ 249.298384][ T2919] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 249.298723][ T2919] ? __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) 
[ 249.299070][ T2919] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 249.299548][ T2919] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 249.299890][ T2919] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 249.300231][ T2919] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 249.300559][ T2919] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 249.300909][ T2919] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 249.301244][ T2919] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 249.301554][ T2919] ? __create_object (mm/kmemleak.c:771) 
[ 249.301873][ T2919] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 249.302221][ T2919] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 249.302603][ T2919] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 249.303029][ T2919] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 249.303349][ T2919] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 249.303675][ T2919] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 249.303998][ T2919] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 249.304327][ T2919] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 249.304649][ T2919] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 249.304993][ T2919] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 249.305326][ T2919] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 249.305689][ T2919] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 249.306004][ T2919] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 249.306347][ T2919] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 249.306698][ T2919] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 249.307036][ T2919] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 249.307347][ T2919] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 249.307712][ T2919] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 249.308042][ T2919] ? 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) 
[ 249.308375][ T2919] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 249.308707][ T2919] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 249.309029][ T2919] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 249.309373][ T2919] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 249.309754][ T2919] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 249.310075][ T2919] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 249.310420][ T2919] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 249.310826][ T2919] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 249.311179][ T2919] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 249.311583][ T2919] ___sys_sendmsg (net/socket.c:2670) 
[ 249.311928][ T2919] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 249.312288][ T2919] ? __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) 
[ 249.312749][ T2919] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 249.313067][ T2919] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 249.313401][ T2919] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 249.313738][ T2919] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 249.314070][ T2919] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 249.314389][ T2919] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 249.314738][ T2919] __sys_sendmsg (net/socket.c:2700) 
[ 249.315089][ T2919] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 249.315496][ T2919] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 249.315864][ T2919] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 249.316176][ T2919] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 249.316542][ T2919] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  249.317021][ T2919] RIP: 0033:0x7f25534011e7
[ 249.317359][ T2919] 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)
[  249.318600][ T2919] RSP: 002b:00007ffcf5822148 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  249.319107][ T2919] RAX: ffffffffffffffda RBX: 00007ffcf5822880 RCX: 00007f25534011e7
[  249.319650][ T2919] RDX: 0000000000000000 RSI: 00007ffcf58221b0 RDI: 0000000000000005
[  249.320171][ T2919] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  249.320696][ T2919] R10: 00000000346f1910 R11: 0000000000000246 R12: 0000000000000003
[  249.321175][ T2919] R13: 00000000686e7044 R14: 0000000000499600 R15: 0000000000000000
| [  251.322083][ T2945] ------------[ cut here ]------------
| [ 251.322386][ T2945] WARNING: CPU: 1 PID: 2945 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) 
| [  251.322983][ T2945] Modules linked in: vxlan
| [  251.323929][ T2945] Tainted: [W]=WARN
[  251.324163][ T2945] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 251.324546][ T2945] 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) 
[ 251.324883][ T2945] 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
[  251.325945][ T2945] RSP: 0018:ffffc90006056ef0 EFLAGS: 00010246
[  251.326334][ T2945] RAX: 0000000000000000 RBX: ffff888009f4a000 RCX: 0000000000000001
[  251.326807][ T2945] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  251.327265][ T2945] RBP: ffffc90006056fd8 R08: 0000000000000000 R09: 0000000000000000
[  251.327715][ T2945] R10: ffffc90006057008 R11: ffffffffaceceab8 R12: 1ffff92000c0ade2
[  251.328157][ T2945] R13: 0000000000000596 R14: ffffc90006057008 R15: ffff888009f4af48
[  251.328629][ T2945] FS:  00007f259eb9e800(0000) GS:ffff8880bee19000(0000) knlGS:0000000000000000
[  251.329163][ T2945] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  251.329559][ T2945] CR2: 00000000004e68a0 CR3: 000000001320b005 CR4: 0000000000772ef0
[  251.330025][ T2945] PKRU: 55555554
[  251.330268][ T2945] Call Trace:
[  251.330501][ T2945]  <TASK>
[ 251.330671][ T2945] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 251.330987][ T2945] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 251.331303][ T2945] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 251.331681][ T2945] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 251.331992][ T2945] netif_set_mtu (net/core/dev.c:9652) 
[ 251.332290][ T2945] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 251.332630][ T2945] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 251.333040][ T2945] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 251.333280][ T2945] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 251.333595][ T2945] br_add_if (net/bridge/br_if.c:697) 
[ 251.333852][ T2945] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 251.334162][ T2945] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 251.334476][ T2945] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 251.334811][ T2945] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 251.335207][ T2945] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 251.335524][ T2945] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 251.335838][ T2945] ? __kernel_text_address (kernel/extable.c:79) 
[ 251.336152][ T2945] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 251.336465][ T2945] ? __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) 
[ 251.336804][ T2945] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 251.337193][ T2945] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 251.337508][ T2945] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 251.337812][ T2945] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 251.338118][ T2945] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 251.338430][ T2945] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 251.338751][ T2945] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 251.339066][ T2945] ? __create_object (mm/kmemleak.c:771) 
[ 251.339376][ T2945] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 251.339717][ T2945] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 251.340039][ T2945] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 251.340430][ T2945] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 251.340768][ T2945] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 251.341088][ T2945] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 251.341403][ T2945] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 251.341733][ T2945] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 251.342046][ T2945] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 251.342346][ T2945] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 251.342666][ T2945] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 251.342969][ T2945] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 251.343269][ T2945] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 251.343566][ T2945] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 251.343889][ T2945] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 251.344184][ T2945] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 251.344479][ T2945] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 251.344818][ T2945] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 251.345119][ T2945] ? 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) 
[ 251.345415][ T2945] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 251.345718][ T2945] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 251.346024][ T2945] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 251.346334][ T2945] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 251.346643][ T2945] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 251.346947][ T2945] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 251.347268][ T2945] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 251.347580][ T2945] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 251.347907][ T2945] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 251.348295][ T2945] ___sys_sendmsg (net/socket.c:2670) 
[ 251.348588][ T2945] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 251.348888][ T2945] ? __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) 
[ 251.349264][ T2945] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 251.349575][ T2945] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 251.349896][ T2945] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 251.350197][ T2945] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 251.350489][ T2945] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 251.350791][ T2945] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 251.351095][ T2945] __sys_sendmsg (net/socket.c:2700) 
[ 251.351406][ T2945] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 251.351801][ T2945] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 251.352112][ T2945] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 251.352421][ T2945] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 251.352738][ T2945] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  251.353109][ T2945] RIP: 0033:0x7f259ed6b1e7
[ 251.353430][ T2945] 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)
[  251.354549][ T2945] RSP: 002b:00007ffd98d1adb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  251.355008][ T2945] RAX: ffffffffffffffda RBX: 00007ffd98d1b4f0 RCX: 00007f259ed6b1e7
[  251.355451][ T2945] RDX: 0000000000000000 RSI: 00007ffd98d1ae20 RDI: 0000000000000005
[  251.355908][ T2945] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  251.356352][ T2945] R10: 0000000012092910 R11: 0000000000000246 R12: 0000000000000003
[  251.356812][ T2945] R13: 00000000686e7046 R14: 0000000000499600 R15: 0000000000000000
| [  255.416452][   T66] ------------[ cut here ]------------
| [ 255.416798][ T66] WARNING: CPU: 3 PID: 66 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) 
| [  255.417344][   T66] Modules linked in: vxlan
| [  255.418413][   T66] Tainted: [W]=WARN
[  255.418661][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  255.419054][   T66] Workqueue: netns cleanup_net
[ 255.419382][ T66] 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) 
[ 255.419726][ T66] 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
[  255.420878][   T66] RSP: 0018:ffffc90000477360 EFLAGS: 00010246
[  255.421274][   T66] RAX: 0000000000000000 RBX: ffff888009f4a000 RCX: 0000000000000001
[  255.421759][   T66] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  255.422223][   T66] RBP: ffffc90000477450 R08: 0000000000000000 R09: 0000000000000000
[  255.422699][   T66] R10: ffffc90000477480 R11: ffffffffac58d1e0 R12: 1ffff9200008ee70
[  255.423185][   T66] R13: 0000000000000596 R14: ffffc90000477480 R15: ffff888009f4af48
[  255.423656][   T66] FS:  0000000000000000(0000) GS:ffff8880bef19000(0000) knlGS:0000000000000000
[  255.424210][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  255.424625][   T66] CR2: 0000562506139f70 CR3: 000000006874a002 CR4: 0000000000772ef0
[  255.425112][   T66] PKRU: 55555554
[  255.425346][   T66] Call Trace:
[  255.425579][   T66]  <TASK>
[ 255.425752][ T66] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 255.426073][ T66] ? __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) 
[ 255.426474][ T66] ? br_del_if (net/bridge/br_if.c:742) 
[ 255.426727][ T66] ? br_device_event (net/bridge/br.c:141) 
[ 255.427038][ T66] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 255.427364][ T66] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 255.427700][ T66] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 255.428081][ T66] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 255.428469][ T66] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 255.428801][ T66] ? cleanup_net (net/core/net_namespace.c:684) 
[ 255.429109][ T66] ? process_one_work (kernel/workqueue.c:3238) 
[ 255.429432][ T66] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 255.429748][ T66] ? kthread (kernel/kthread.c:464) 
[ 255.429991][ T66] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 255.430323][ T66] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 255.430663][ T66] netif_set_mtu (net/core/dev.c:9652) 
[ 255.430980][ T66] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 255.431322][ T66] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 255.431573][ T66] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 255.431908][ T66] br_del_if (net/bridge/br_if.c:743) 
[ 255.432155][ T66] br_device_event (net/bridge/br.c:141) 
[ 255.432462][ T66] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 255.432799][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 255.433116][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 255.433505][ T66] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 255.433919][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 255.434315][ T66] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 255.434644][ T66] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 255.435037][ T66] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 255.435451][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 255.435775][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 255.436175][ T66] ? 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) 
[ 255.436495][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 255.436893][ T66] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 255.437274][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 255.437683][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 255.438084][ T66] default_device_exit_batch (net/core/dev.c:12673) 
[ 255.438393][ T66] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 255.438818][ T66] ops_undo_list (net/core/net_namespace.c:250) 
[ 255.439134][ T66] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 255.439464][ T66] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 255.439793][ T66] cleanup_net (net/core/net_namespace.c:684) 
[ 255.440121][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 255.440430][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 255.440759][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 255.441096][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 255.441418][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 255.441763][ T66] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 255.442087][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 255.442396][ T66] kthread (kernel/kthread.c:464) 
[ 255.442643][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 255.442951][ T66] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 255.443261][ T66] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 255.443603][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 255.443931][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 255.444257][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 255.444567][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 255.444880][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  255.473226][   T66] ------------[ cut here ]------------
| [ 255.473545][ T66] WARNING: CPU: 3 PID: 66 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) 
| [  255.474716][   T66] Modules linked in: vxlan
| [  255.475752][   T66] Tainted: [W]=WARN
[  255.475987][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  255.476378][   T66] Workqueue: netns cleanup_net
[ 255.476725][ T66] 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) 
[ 255.477067][ T66] 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
[  255.478226][   T66] RSP: 0018:ffffc90000477360 EFLAGS: 00010246
[  255.478644][   T66] RAX: 0000000000000000 RBX: ffff888009f4a000 RCX: 0000000000000001
[  255.479133][   T66] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  255.479678][   T66] RBP: ffffc90000477450 R08: 0000000000000000 R09: 0000000000000000
[  255.480162][   T66] R10: ffffc90000477480 R11: ffffffffac58d1e0 R12: 1ffff9200008ee70
[  255.480660][   T66] R13: 00000000000005aa R14: ffffc90000477480 R15: ffff888009f4af48
[  255.481155][   T66] FS:  0000000000000000(0000) GS:ffff8880bef19000(0000) knlGS:0000000000000000
[  255.481744][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  255.482159][   T66] CR2: 0000562506139f70 CR3: 000000006874a002 CR4: 0000000000772ef0
[  255.482663][   T66] PKRU: 55555554
[  255.482911][   T66] Call Trace:
[  255.483160][   T66]  <TASK>
[ 255.483334][ T66] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 255.483690][ T66] ? __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) 
[ 255.484100][ T66] ? br_del_if (net/bridge/br_if.c:742) 
[ 255.484355][ T66] ? br_device_event (net/bridge/br.c:141) 
[ 255.484695][ T66] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 255.485028][ T66] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 255.485404][ T66] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 255.485820][ T66] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 255.486220][ T66] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 255.486536][ T66] ? cleanup_net (net/core/net_namespace.c:684) 
[ 255.486857][ T66] ? process_one_work (kernel/workqueue.c:3238) 
[ 255.487173][ T66] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 255.487484][ T66] ? kthread (kernel/kthread.c:464) 
[ 255.487731][ T66] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 255.488047][ T66] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 255.488389][ T66] netif_set_mtu (net/core/dev.c:9652) 
[ 255.488716][ T66] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 255.489051][ T66] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 255.489294][ T66] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 255.489690][ T66] br_del_if (net/bridge/br_if.c:743) 
[ 255.489946][ T66] br_device_event (net/bridge/br.c:141) 
[ 255.490278][ T66] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 255.490631][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 255.490975][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 255.491393][ T66] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 255.491830][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 255.492248][ T66] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 255.492593][ T66] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 255.493261][ T66] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 255.493712][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 255.494048][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 255.494701][ T66] ? 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) 
[ 255.495033][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 255.495438][ T66] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 255.495853][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 255.496495][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 255.496921][ T66] default_device_exit_batch (net/core/dev.c:12673) 
[ 255.497251][ T66] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 255.497898][ T66] ops_undo_list (net/core/net_namespace.c:250) 
[ 255.498232][ T66] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 255.498561][ T66] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 255.498913][ T66] cleanup_net (net/core/net_namespace.c:684) 
[ 255.499239][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 255.499578][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 255.499918][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 255.500255][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 255.500592][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 255.500930][ T66] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 255.501264][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 255.501599][ T66] kthread (kernel/kthread.c:464) 
[ 255.501859][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 255.502415][ T66] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 255.502748][ T66] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 255.503754][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 255.504313][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 255.505327][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 255.505668][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 255.505998][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  255.534655][   T66] ------------[ cut here ]------------
| [ 255.535005][ T66] WARNING: CPU: 3 PID: 66 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) 
| [  255.535559][   T66] Modules linked in: vxlan
| [  255.537470][   T66] Tainted: [W]=WARN
[  255.537866][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  255.538274][   T66] Workqueue: netns cleanup_net
[ 255.538763][ T66] 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) 
[ 255.539094][ T66] 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
[  255.540476][   T66] RSP: 0018:ffffc90000477360 EFLAGS: 00010246
[  255.541116][   T66] RAX: 0000000000000000 RBX: ffff888009f4a000 RCX: 0000000000000001
[  255.541633][   T66] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  255.542135][   T66] RBP: ffffc90000477450 R08: 0000000000000000 R09: 0000000000000000
[  255.542646][   T66] R10: ffffc90000477480 R11: ffffffffac58d1e0 R12: 1ffff9200008ee70
[  255.543145][   T66] R13: 00000000000005dc R14: ffffc90000477480 R15: ffff888009f4af48
[  255.543647][   T66] FS:  0000000000000000(0000) GS:ffff8880bef19000(0000) knlGS:0000000000000000
[  255.544227][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  255.544670][   T66] CR2: 0000562506139f70 CR3: 000000006874a002 CR4: 0000000000772ef0
[  255.545174][   T66] PKRU: 55555554
[  255.545420][   T66] Call Trace:
[  255.545689][   T66]  <TASK>
[ 255.545858][ T66] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 255.546195][ T66] ? __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) 
[ 255.546620][ T66] ? br_del_if (net/bridge/br_if.c:742) 
[ 255.546876][ T66] ? br_device_event (net/bridge/br.c:141) 
[ 255.547206][ T66] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 255.547536][ T66] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 255.547888][ T66] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 255.548298][ T66] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 255.548721][ T66] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 255.549052][ T66] ? cleanup_net (net/core/net_namespace.c:684) 
[ 255.549388][ T66] ? process_one_work (kernel/workqueue.c:3238) 
[ 255.549739][ T66] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 255.550072][ T66] ? kthread (kernel/kthread.c:464) 
[ 255.550321][ T66] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 255.550659][ T66] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 255.551017][ T66] netif_set_mtu (net/core/dev.c:9652) 
[ 255.551354][ T66] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 255.551718][ T66] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 255.551968][ T66] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 255.552303][ T66] br_del_if (net/bridge/br_if.c:743) 
[ 255.552557][ T66] br_device_event (net/bridge/br.c:141) 
[ 255.552893][ T66] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 255.553232][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 255.553572][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 255.554003][ T66] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 255.554445][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 255.554876][ T66] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 255.555226][ T66] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 255.555664][ T66] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 255.556100][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 255.556445][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 255.556881][ T66] ? 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) 
[ 255.557216][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 255.557636][ T66] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 255.558047][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 255.558450][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 255.558879][ T66] default_device_exit_batch (net/core/dev.c:12673) 
[ 255.559218][ T66] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 255.559676][ T66] ops_undo_list (net/core/net_namespace.c:250) 
[ 255.560012][ T66] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 255.560335][ T66] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 255.560682][ T66] cleanup_net (net/core/net_namespace.c:684) 
[ 255.561017][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 255.561351][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 255.561699][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 255.562048][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 255.562388][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 255.562726][ T66] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 255.563060][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 255.563397][ T66] kthread (kernel/kthread.c:464) 
[ 255.563672][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 255.563995][ T66] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 255.564324][ T66] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 255.564674][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 255.565013][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 255.565339][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 255.565679][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 255.566012][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  255.603647][   T66] ------------[ cut here ]------------
| [ 255.603997][ T66] WARNING: CPU: 2 PID: 66 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) 
| [  255.604546][   T66] Modules linked in: vxlan
| [  255.605625][   T66] Tainted: [W]=WARN
[  255.605875][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  255.606277][   T66] Workqueue: netns cleanup_net
[ 255.606622][ T66] 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) 
[ 255.606955][ T66] 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
[  255.608101][   T66] RSP: 0018:ffffc90000477360 EFLAGS: 00010246
[  255.608521][   T66] RAX: 0000000000000000 RBX: ffff88800dbd2000 RCX: 0000000000000001
[  255.609004][   T66] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  255.609493][   T66] RBP: ffffc90000477450 R08: 0000000000000000 R09: 0000000000000000
[  255.609976][   T66] R10: ffffc90000477480 R11: ffffffffac58d1e0 R12: 1ffff9200008ee70
[  255.610450][   T66] R13: 00000000000005dc R14: ffffc90000477480 R15: ffff88800dbd2f48
[  255.610934][   T66] FS:  0000000000000000(0000) GS:ffff8880bee99000(0000) knlGS:0000000000000000
[  255.611483][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  255.611895][   T66] CR2: 000056078495d548 CR3: 00000000114ed006 CR4: 0000000000772ef0
[  255.612380][   T66] PKRU: 55555554
[  255.612635][   T66] Call Trace:
[  255.612887][   T66]  <TASK>
[ 255.613057][ T66] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 255.613380][ T66] ? __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) 
[ 255.613787][ T66] ? br_del_if (net/bridge/br_if.c:742) 
[ 255.614036][ T66] ? br_device_event (net/bridge/br.c:141) 
[ 255.614360][ T66] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 255.614694][ T66] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 255.615020][ T66] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 255.615416][ T66] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 255.615822][ T66] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 255.616166][ T66] ? cleanup_net (net/core/net_namespace.c:684) 
[ 255.616492][ T66] ? process_one_work (kernel/workqueue.c:3238) 
[ 255.616827][ T66] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 255.617157][ T66] ? kthread (kernel/kthread.c:464) 
[ 255.617401][ T66] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 255.617733][ T66] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 255.618066][ T66] netif_set_mtu (net/core/dev.c:9652) 
[ 255.618389][ T66] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 255.618736][ T66] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 255.618989][ T66] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 255.619323][ T66] br_del_if (net/bridge/br_if.c:743) 
[ 255.619583][ T66] br_device_event (net/bridge/br.c:141) 
[ 255.619916][ T66] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 255.620250][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 255.620588][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 255.621015][ T66] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 255.621433][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 255.621854][ T66] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 255.622194][ T66] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 255.622616][ T66] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 255.623050][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 255.623380][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 255.623794][ T66] ? 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) 
[ 255.624122][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 255.624541][ T66] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 255.624951][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 255.625356][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 255.625774][ T66] default_device_exit_batch (net/core/dev.c:12673) 
[ 255.626098][ T66] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 255.626504][ T66] ops_undo_list (net/core/net_namespace.c:250) 
[ 255.626858][ T66] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 255.627194][ T66] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 255.627527][ T66] cleanup_net (net/core/net_namespace.c:684) 
[ 255.627867][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 255.628193][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 255.628521][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 255.628874][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 255.629213][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 255.629552][ T66] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 255.629894][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 255.630214][ T66] kthread (kernel/kthread.c:464) 
[ 255.630464][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 255.630789][ T66] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 255.631113][ T66] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 255.631440][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 255.631788][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 255.632109][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 255.632434][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 255.632772][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  255.659811][   T66] ------------[ cut here ]------------
| [ 255.660188][ T66] WARNING: CPU: 2 PID: 66 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) 
| [  255.660770][   T66] Modules linked in: vxlan
| [  255.662105][   T66] Tainted: [W]=WARN
[  255.662564][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  255.662998][   T66] Workqueue: netns cleanup_net
[ 255.663355][ T66] 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) 
[ 255.663712][ T66] 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
[  255.664897][   T66] RSP: 0018:ffffc90000477360 EFLAGS: 00010246
[  255.665317][   T66] RAX: 0000000000000000 RBX: ffff8880133e2000 RCX: 0000000000000001
[  255.665821][   T66] RDX: 0000000000000000 RSI: ffffffffabb10751 RDI: ffffffffab258280
[  255.666323][   T66] RBP: ffffc90000477450 R08: 0000000000000000 R09: 0000000000000000
[  255.666839][   T66] R10: ffffc90000477480 R11: ffffffffac58d1e0 R12: 1ffff9200008ee70
[  255.667328][   T66] R13: 00000000000005dc R14: ffffc90000477480 R15: ffff8880133e2f48
[  255.667847][   T66] FS:  0000000000000000(0000) GS:ffff8880bee99000(0000) knlGS:0000000000000000
[  255.668426][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  255.668880][   T66] CR2: 000056078495d548 CR3: 00000000114ed006 CR4: 0000000000772ef0
[  255.669373][   T66] PKRU: 55555554
[  255.669670][   T66] Call Trace:
[  255.669925][   T66]  <TASK>
[ 255.670102][ T66] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 255.670445][ T66] ? __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) 
[ 255.670870][ T66] ? br_del_if (net/bridge/br_if.c:742) 
[ 255.671139][ T66] ? br_device_event (net/bridge/br.c:141) 
[ 255.671479][ T66] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 255.671835][ T66] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 255.672178][ T66] ? unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 255.672594][ T66] ? default_device_exit_batch (net/core/dev.c:12673) 
[ 255.673019][ T66] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 255.673358][ T66] ? cleanup_net (net/core/net_namespace.c:684) 
[ 255.673715][ T66] ? process_one_work (kernel/workqueue.c:3238) 
[ 255.674051][ T66] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 255.674389][ T66] ? kthread (kernel/kthread.c:464) 
[ 255.674647][ T66] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 255.674967][ T66] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 255.675299][ T66] netif_set_mtu (net/core/dev.c:9652) 
[ 255.675636][ T66] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 255.675985][ T66] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 255.676237][ T66] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 255.676562][ T66] br_del_if (net/bridge/br_if.c:743) 
[ 255.676832][ T66] br_device_event (net/bridge/br.c:141) 
[ 255.677164][ T66] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 255.677509][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 255.677862][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 255.678289][ T66] ? __pfx_vxlan_dellink (drivers/net/vxlan/vxlan_core.c:4473) vxlan 
[ 255.678742][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 255.679183][ T66] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) vxlan 
[ 255.679539][ T66] vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4709 drivers/net/vxlan/vxlan_core.c:4718) vxlan 
[ 255.679982][ T66] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4713) vxlan 
[ 255.680402][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 255.680739][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 255.681150][ T66] ? 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) 
[ 255.681471][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 255.681901][ T66] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 255.682299][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 255.682705][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 255.683111][ T66] default_device_exit_batch (net/core/dev.c:12673) 
[ 255.683440][ T66] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 255.683860][ T66] ops_undo_list (net/core/net_namespace.c:250) 
[ 255.684187][ T66] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 255.684503][ T66] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 255.684842][ T66] cleanup_net (net/core/net_namespace.c:684) 
[ 255.685166][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 255.685489][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 255.685825][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 255.686158][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 255.686483][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 255.686822][ T66] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 255.687150][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 255.687473][ T66] kthread (kernel/kthread.c:464) 
[ 255.687864][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 255.688341][ T66] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 255.688904][ T66] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 255.689440][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 255.690012][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 255.690575][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 255.691153][ T66] ? __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