======================================
| [   24.928528][  T332] swp1: entered promiscuous mode
| [   24.934106][  T332] ------------[ cut here ]------------
| [ 24.934441][ T332] WARNING: CPU: 0 PID: 332 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) 
| [   24.935064][  T332] Modules linked in:
[   24.936176][  T332] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 24.936572][ T332] 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) 
[ 24.936890][ T332] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   24.937964][  T332] RSP: 0018:ffffc90000e86ef0 EFLAGS: 00010246
[   24.938353][  T332] RAX: 0000000000000000 RBX: ffff88800d14a000 RCX: 0000000000000001
[   24.938807][  T332] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[   24.939255][  T332] RBP: ffffc90000e86fd8 R08: 0000000000000000 R09: 0000000000000000
[   24.939869][  T332] R10: ffffc90000e87008 R11: ffffffffb1f8d1e0 R12: 1ffff920001d0de2
[   24.940322][  T332] R13: 00000000000005dc R14: ffffc90000e87008 R15: ffff88800d14af48
[   24.940920][  T332] FS:  00007fb116f09800(0000) GS:ffff8880b9399000(0000) knlGS:0000000000000000
[   24.941462][  T332] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.942000][  T332] CR2: 00000000004e6888 CR3: 000000000a066002 CR4: 0000000000772ef0
[   24.942475][  T332] PKRU: 55555554
[   24.942858][  T332] Call Trace:
[   24.943085][  T332]  <TASK>
[ 24.943250][ T332] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 24.943570][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.944045][ T332] netif_set_mtu (net/core/dev.c:9652) 
[ 24.944348][ T332] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 24.944673][ T332] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 24.944901][ T332] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 24.945201][ T332] br_add_if (net/bridge/br_if.c:697) 
[ 24.945435][ T332] do_set_master (net/core/rtnetlink.c:2948) 
[ 24.945739][ T332] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 24.946045][ T332] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 24.946347][ T332] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 24.946738][ T332] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 24.947036][ T332] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 24.947332][ T332] ? __kernel_text_address (kernel/extable.c:79) 
[ 24.947663][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.947977][ T332] ? __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) 
[ 24.948324][ T332] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 24.948729][ T332] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.949062][ T332] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.949375][ T332] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 24.949700][ T332] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 24.950020][ T332] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.950339][ T332] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 24.950659][ T332] ? __create_object (mm/kmemleak.c:771) 
[ 24.950973][ T332] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 24.951284][ T332] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 24.951604][ T332] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 24.952008][ T332] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 24.952332][ T332] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 24.952669][ T332] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.952977][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.953288][ T332] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.953599][ T332] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 24.953912][ T332] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.954229][ T332] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.954548][ T332] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 24.954870][ T332] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.955184][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.955496][ T332] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 24.955818][ T332] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.956134][ T332] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 24.956454][ T332] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 24.956774][ T332] ? 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) 
[ 24.957087][ T332] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 24.957402][ T332] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 24.957721][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.958037][ T332] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 24.958352][ T332] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 24.958679][ T332] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 24.958999][ T332] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 24.959313][ T332] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 24.959621][ T332] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 24.960030][ T332] ___sys_sendmsg (net/socket.c:2670) 
[ 24.960348][ T332] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 24.960669][ T332] ? __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) 
[ 24.961074][ T332] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 24.961390][ T332] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.961718][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.962039][ T332] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.962350][ T332] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 24.962690][ T332] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.963018][ T332] __sys_sendmsg (net/socket.c:2700) 
[ 24.963335][ T332] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 24.963746][ T332] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 24.964078][ T332] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.964393][ T332] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 24.964723][ T332] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   24.965113][  T332] RIP: 0033:0x7fb1170d61e7
[ 24.965448][ T332] 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)
[   24.966605][  T332] RSP: 002b:00007fff46c194d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   24.967087][  T332] RAX: ffffffffffffffda RBX: 00007fff46c19c10 RCX: 00007fb1170d61e7
[   24.967563][  T332] RDX: 0000000000000000 RSI: 00007fff46c19540 RDI: 0000000000000005
[   24.968056][  T332] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   24.968541][  T332] R10: 0000000000522910 R11: 0000000000000246 R12: 0000000000000005
[   24.969022][  T332] R13: 00000000686e46eb R14: 0000000000499600 R15: 0000000000000000
| [   25.568666][  T335] ------------[ cut here ]------------
| [ 25.569038][ T335] WARNING: CPU: 2 PID: 335 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) 
| [   25.569933][  T335] Modules linked in: vxlan
| [   25.570980][  T335] Tainted: [W]=WARN
[   25.571233][  T335] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 25.571661][ T335] 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) 
[ 25.572003][ T335] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   25.573168][  T335] RSP: 0000:ffffc90000e97080 EFLAGS: 00010246
[   25.573582][  T335] RAX: 0000000000000000 RBX: ffff88800d14a000 RCX: 0000000000000001
[   25.574088][  T335] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[   25.574571][  T335] RBP: ffffc90000e97168 R08: 0000000000000000 R09: 0000000000000000
[   25.575068][  T335] R10: ffffc90000e97198 R11: ffffffffb28ceab8 R12: 1ffff920001d2e14
[   25.575807][  T335] R13: 00000000000005dc R14: ffffc90000e97198 R15: ffff88800d14af48
[   25.576300][  T335] FS:  00007ff11b3aa800(0000) GS:ffff8880b9499000(0000) knlGS:0000000000000000
[   25.576886][  T335] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.577294][  T335] CR2: 00007ff11b583ab0 CR3: 000000000a062005 CR4: 0000000000772ef0
[   25.577799][  T335] PKRU: 55555554
[   25.578050][  T335] Call Trace:
[   25.578303][  T335]  <TASK>
[ 25.578483][ T335] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 25.578844][ T335] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 25.579178][ T335] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 25.579582][ T335] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 25.579933][ T335] netif_set_mtu (net/core/dev.c:9652) 
[ 25.580262][ T335] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 25.580602][ T335] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 25.581057][ T335] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 25.581312][ T335] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 25.581664][ T335] br_add_if (net/bridge/br_if.c:697) 
[ 25.581930][ T335] do_set_master (net/core/rtnetlink.c:2948) 
[ 25.582258][ T335] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 25.582596][ T335] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 25.582949][ T335] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 25.583283][ T335] ? __dev_get_by_name (net/core/dev.c:865) 
[ 25.583612][ T335] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 25.583962][ T335] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 25.584292][ T335] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 25.584613][ T335] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 25.584969][ T335] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 25.585308][ T335] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 25.585662][ T335] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 25.586009][ T335] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 25.586340][ T335] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 25.586695][ T335] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 25.587018][ T335] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 25.587341][ T335] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 25.587691][ T335] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.588018][ T335] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 25.588347][ T335] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 25.588691][ T335] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 25.589026][ T335] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 25.589344][ T335] ? 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) 
[ 25.589690][ T335] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 25.590014][ T335] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 25.590334][ T335] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.590689][ T335] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 25.591014][ T335] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 25.591336][ T335] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 25.591688][ T335] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 25.592017][ T335] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 25.592337][ T335] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 25.592780][ T335] ___sys_sendmsg (net/socket.c:2670) 
[ 25.593112][ T335] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 25.593432][ T335] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 25.593779][ T335] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 25.594099][ T335] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 25.594423][ T335] ? __handle_mm_fault (mm/memory.c:6212) 
[ 25.594769][ T335] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 25.595095][ T335] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 25.595436][ T335] __sys_sendmsg (net/socket.c:2700) 
[ 25.595777][ T335] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 25.596099][ T335] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 25.596423][ T335] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 25.596767][ T335] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 25.597090][ T335] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 25.597412][ T335] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   25.597836][  T335] RIP: 0033:0x7ff11b5771e7
[ 25.598170][ T335] Code: Unable to access opcode bytes at 0x7ff11b5771bd.

Code starting with the faulting instruction
===========================================
[   25.598582][  T335] RSP: 002b:00007ffe3d425738 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   25.599075][  T335] RAX: ffffffffffffffda RBX: 00007ffe3d425e70 RCX: 00007ff11b5771e7
[   25.599547][  T335] RDX: 0000000000000000 RSI: 00007ffe3d4257a0 RDI: 0000000000000005
[   25.600044][  T335] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   25.600511][  T335] R10: 00007ff11b605ac0 R11: 0000000000000246 R12: 00007ffe3d425ea8
[   25.600996][  T335] R13: 00000000686e46eb R14: 0000000000499600 R15: 00007ffe3d425890
| [   27.853400][  T355] ------------[ cut here ]------------
| [ 27.853785][ T355] WARNING: CPU: 2 PID: 355 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) 
| [   27.854411][  T355] Modules linked in: vxlan
| [   27.855403][  T355] Tainted: [W]=WARN
[   27.855660][  T355] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 27.856051][ T355] 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) 
[ 27.856398][ T355] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   27.857510][  T355] RSP: 0018:ffffc90000606ef0 EFLAGS: 00010246
[   27.857913][  T355] RAX: 0000000000000000 RBX: ffff8880054c2000 RCX: 0000000000000001
[   27.858384][  T355] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[   27.858865][  T355] RBP: ffffc90000606fd8 R08: 0000000000000000 R09: 0000000000000000
[   27.859350][  T355] R10: ffffc90000607008 R11: ffffffffb1f8d1e0 R12: 1ffff920000c0de2
[   27.859822][  T355] R13: 00000000000005dc R14: ffffc90000607008 R15: ffff8880054c2f48
[   27.860276][  T355] FS:  00007f42ba6b9800(0000) GS:ffff8880b9499000(0000) knlGS:0000000000000000
[   27.860851][  T355] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.861237][  T355] CR2: 00000000004e6888 CR3: 00000000115d8006 CR4: 0000000000772ef0
[   27.861730][  T355] PKRU: 55555554
[   27.861967][  T355] Call Trace:
[   27.862206][  T355]  <TASK>
[ 27.862379][ T355] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 27.862728][ T355] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.863058][ T355] netif_set_mtu (net/core/dev.c:9652) 
[ 27.863366][ T355] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 27.863719][ T355] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 27.863958][ T355] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 27.864274][ T355] br_add_if (net/bridge/br_if.c:697) 
[ 27.864536][ T355] do_set_master (net/core/rtnetlink.c:2948) 
[ 27.864857][ T355] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 27.865174][ T355] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 27.865507][ T355] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 27.865927][ T355] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 27.866245][ T355] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 27.866566][ T355] ? __kernel_text_address (kernel/extable.c:79) 
[ 27.866896][ T355] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.867210][ T355] ? __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) 
[ 27.867530][ T355] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 27.867935][ T355] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 27.868252][ T355] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 27.868567][ T355] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 27.868899][ T355] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 27.869223][ T355] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 27.869535][ T355] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 27.869872][ T355] ? __create_object (mm/kmemleak.c:771) 
[ 27.870190][ T355] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 27.870502][ T355] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 27.870837][ T355] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 27.871221][ T355] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 27.871537][ T355] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 27.871899][ T355] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 27.872209][ T355] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.872543][ T355] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 27.872890][ T355] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 27.873204][ T355] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 27.873517][ T355] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 27.873856][ T355] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 27.874167][ T355] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 27.874485][ T355] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.874832][ T355] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 27.875159][ T355] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 27.875477][ T355] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 27.875831][ T355] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 27.876141][ T355] ? 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) 
[ 27.876456][ T355] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 27.876781][ T355] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 27.877105][ T355] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.877427][ T355] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 27.877760][ T355] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 27.878108][ T355] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 27.878429][ T355] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 27.878755][ T355] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 27.879081][ T355] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 27.879474][ T355] ___sys_sendmsg (net/socket.c:2670) 
[ 27.879802][ T355] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 27.880135][ T355] ? __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) 
[ 27.880526][ T355] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 27.880857][ T355] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 27.881189][ T355] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.881508][ T355] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 27.881833][ T355] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 27.882173][ T355] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 27.882503][ T355] __sys_sendmsg (net/socket.c:2700) 
[ 27.882828][ T355] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 27.883232][ T355] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 27.883556][ T355] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 27.883885][ T355] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 27.884232][ T355] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   27.884625][  T355] RIP: 0033:0x7f42ba8861e7
[ 27.884966][ T355] 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)
[   27.886073][  T355] RSP: 002b:00007ffc35b11718 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   27.886549][  T355] RAX: ffffffffffffffda RBX: 00007ffc35b11e50 RCX: 00007f42ba8861e7
[   27.887024][  T355] RDX: 0000000000000000 RSI: 00007ffc35b11780 RDI: 0000000000000005
[   27.887493][  T355] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   27.887971][  T355] R10: 0000000039b1c910 R11: 0000000000000246 R12: 0000000000000005
[   27.888444][  T355] R13: 00000000686e46ee R14: 0000000000499600 R15: 0000000000000000
| [   28.294213][  T358] ------------[ cut here ]------------
| [ 28.294554][ T358] WARNING: CPU: 3 PID: 358 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) 
| [   28.296196][  T358] Modules linked in: vxlan
| [   28.297182][  T358] Tainted: [W]=WARN
[   28.297425][  T358] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 28.297837][ T358] 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) 
[ 28.298167][ T358] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   28.299314][  T358] RSP: 0018:ffffc90000627080 EFLAGS: 00010246
[   28.299727][  T358] RAX: 0000000000000000 RBX: ffff8880054c2000 RCX: 0000000000000001
[   28.300209][  T358] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[   28.300696][  T358] RBP: ffffc90000627168 R08: 0000000000000000 R09: 0000000000000000
[   28.301173][  T358] R10: ffffc90000627198 R11: ffffffffb1f8d1e0 R12: 1ffff920000c4e14
[   28.301658][  T358] R13: 00000000000005dc R14: ffffc90000627198 R15: ffff8880054c2f48
[   28.302141][  T358] FS:  00007fbe60519800(0000) GS:ffff8880b9519000(0000) knlGS:0000000000000000
[   28.302726][  T358] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.303132][  T358] CR2: 000000000043d940 CR3: 00000000116ff003 CR4: 0000000000772ef0
[   28.303615][  T358] PKRU: 55555554
[   28.303864][  T358] Call Trace:
[   28.304100][  T358]  <TASK>
[ 28.304270][ T358] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 28.304589][ T358] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 28.304933][ T358] netif_set_mtu (net/core/dev.c:9652) 
[ 28.305253][ T358] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 28.305587][ T358] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 28.305835][ T358] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 28.306162][ T358] br_add_if (net/bridge/br_if.c:697) 
[ 28.306413][ T358] do_set_master (net/core/rtnetlink.c:2948) 
[ 28.306745][ T358] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 28.307066][ T358] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 28.307387][ T358] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 28.307714][ T358] ? __dev_get_by_name (net/core/dev.c:865) 
[ 28.308033][ T358] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 28.308358][ T358] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 28.308712][ T358] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 28.309037][ T358] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 28.309359][ T358] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 28.309702][ T358] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 28.310027][ T358] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 28.310357][ T358] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 28.310710][ T358] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 28.311032][ T358] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 28.311351][ T358] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 28.311681][ T358] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 28.312002][ T358] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 28.312326][ T358] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 28.312669][ T358] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 28.312990][ T358] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 28.313321][ T358] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 28.313648][ T358] ? 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) 
[ 28.313974][ T358] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 28.314296][ T358] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 28.314613][ T358] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 28.314948][ T358] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 28.315272][ T358] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 28.315592][ T358] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 28.315928][ T358] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 28.316253][ T358] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 28.316571][ T358] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 28.316990][ T358] ___sys_sendmsg (net/socket.c:2670) 
[ 28.317312][ T358] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 28.317629][ T358] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 28.317961][ T358] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 28.318277][ T358] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 28.318600][ T358] ? __handle_mm_fault (mm/memory.c:6212) 
[ 28.318929][ T358] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 28.319246][ T358] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 28.319588][ T358] __sys_sendmsg (net/socket.c:2700) 
[ 28.319923][ T358] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 28.320241][ T358] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 28.320570][ T358] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 28.320897][ T358] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 28.321337][ T358] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 28.321671][ T358] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   28.322068][  T358] RIP: 0033:0x7fbe606e61e7
[ 28.322405][ T358] 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)
[   28.323560][  T358] RSP: 002b:00007ffc985284f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   28.324050][  T358] RAX: ffffffffffffffda RBX: 00007ffc98528c30 RCX: 00007fbe606e61e7
[   28.324529][  T358] RDX: 0000000000000000 RSI: 00007ffc98528560 RDI: 0000000000000005
[   28.325023][  T358] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   28.325504][  T358] R10: 00007fbe60774ac0 R11: 0000000000000246 R12: 00007ffc98528c68
[   28.325986][  T358] R13: 00000000686e46ee R14: 0000000000499600 R15: 00007ffc98528650
| [   49.312509][   T12] ------------[ cut here ]------------
| [ 49.312890][ T12] WARNING: CPU: 1 PID: 12 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   49.313476][   T12] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   49.315078][   T12] Tainted: [W]=WARN
[   49.315337][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   49.315766][   T12] Workqueue: netns cleanup_net
[ 49.316126][ T12] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 49.316466][ T12] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   49.317812][   T12] RSP: 0018:ffffc900000c75b0 EFLAGS: 00010246
[   49.318238][   T12] RAX: 0000000000000000 RBX: ffff88800d14a000 RCX: 0000000000000001
[   49.318924][   T12] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[   49.319420][   T12] RBP: ffffc900000c7698 R08: 0000000000000000 R09: 0000000000000000
[   49.320218][   T12] R10: ffffc900000c76c8 R11: ffffffffade9be78 R12: 1ffff92000018eba
[   49.320865][   T12] R13: 00000000000005dc R14: ffffc900000c76c8 R15: ffff88800d14af48
[   49.321369][   T12] FS:  0000000000000000(0000) GS:ffff8880b9419000(0000) knlGS:0000000000000000
[   49.322109][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   49.322587][   T12] CR2: 00005579b2b3d368 CR3: 000000002a94a004 CR4: 0000000000772ef0
[   49.323108][   T12] PKRU: 55555554
[   49.323365][   T12] Call Trace:
[   49.323614][   T12]  <TASK>
[ 49.323796][ T12] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 49.324219][ T12] ? br_del_if (net/bridge/br_if.c:742) 
[ 49.324476][ T12] ? br_device_event (net/bridge/br.c:141) 
[ 49.324823][ T12] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 49.325172][ T12] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 49.325503][ T12] ? cleanup_net (net/core/net_namespace.c:684) 
[ 49.325846][ T12] ? process_one_work (kernel/workqueue.c:3238) 
[ 49.326184][ T12] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 49.326521][ T12] ? kthread (kernel/kthread.c:464) 
[ 49.326781][ T12] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 49.327113][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 49.327448][ T12] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.327810][ T12] netif_set_mtu (net/core/dev.c:9652) 
[ 49.328148][ T12] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 49.328504][ T12] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 49.328785][ T12] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 49.329125][ T12] br_del_if (net/bridge/br_if.c:743) 
[ 49.329377][ T12] br_device_event (net/bridge/br.c:141) 
[ 49.329737][ T12] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 49.330076][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 49.330411][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 49.330833][ T12] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 49.331167][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 49.331575][ T12] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 49.331990][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 49.332459][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 49.332904][ T12] default_device_exit_batch (net/core/dev.c:12673) 
[ 49.333233][ T12] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 49.333674][ T12] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 49.334013][ T12] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 49.334339][ T12] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 49.334775][ T12] cleanup_net (net/core/net_namespace.c:684) 
[ 49.335085][ T12] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 49.335384][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.335690][ T12] process_one_work (kernel/workqueue.c:3238) 
[ 49.335994][ T12] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 49.336292][ T12] ? assign_work (kernel/workqueue.c:1200) 
[ 49.336592][ T12] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 49.336912][ T12] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 49.337209][ T12] kthread (kernel/kthread.c:464) 
[ 49.337438][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 49.337736][ T12] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 49.338028][ T12] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 49.338322][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.338615][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 49.338925][ T12] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 49.339217][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 49.339511][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   49.922361][   T12] ------------[ cut here ]------------
| [ 49.922955][ T12] WARNING: CPU: 2 PID: 12 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   49.923888][   T12] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   49.926193][   T12] Tainted: [W]=WARN
[   49.926886][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   49.927543][   T12] Workqueue: netns cleanup_net
[ 49.928134][ T12] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 49.928723][ T12] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   49.930624][   T12] RSP: 0018:ffffc900000c75b0 EFLAGS: 00010246
[   49.931312][   T12] RAX: 0000000000000000 RBX: ffff8880054c2000 RCX: 0000000000000001
[   49.932168][   T12] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[   49.932971][   T12] RBP: ffffc900000c7698 R08: 0000000000000000 R09: 0000000000000000
[   49.933787][   T12] R10: ffffc900000c76c8 R11: ffffffffb1f8d1e0 R12: 1ffff92000018eba
[   49.934575][   T12] R13: 00000000000005dc R14: ffffc900000c76c8 R15: ffff8880054c2f48
[   49.935401][   T12] FS:  0000000000000000(0000) GS:ffff8880b9499000(0000) knlGS:0000000000000000
[   49.936349][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   49.936992][   T12] CR2: 0000000000406141 CR3: 000000002a94a004 CR4: 0000000000772ef0
[   49.937761][   T12] PKRU: 55555554
[   49.938170][   T12] Call Trace:
[   49.938572][   T12]  <TASK>
[ 49.938884][ T12] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 49.939551][ T12] ? br_del_if (net/bridge/br_if.c:742) 
[ 49.939985][ T12] ? br_device_event (net/bridge/br.c:141) 
[ 49.940522][ T12] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 49.941089][ T12] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 49.941621][ T12] ? cleanup_net (net/core/net_namespace.c:684) 
[ 49.942173][ T12] ? process_one_work (kernel/workqueue.c:3238) 
[ 49.942623][ T12] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 49.942951][ T12] ? kthread (kernel/kthread.c:464) 
[ 49.943185][ T12] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 49.943594][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 49.944151][ T12] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.944729][ T12] netif_set_mtu (net/core/dev.c:9652) 
[ 49.945267][ T12] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 49.945838][ T12] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 49.946124][ T12] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 49.946476][ T12] br_del_if (net/bridge/br_if.c:743) 
[ 49.946736][ T12] br_device_event (net/bridge/br.c:141) 
[ 49.947046][ T12] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 49.947377][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 49.948326][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 49.949015][ T12] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 49.949923][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 49.950300][ T12] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 49.950939][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 49.951360][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 49.952012][ T12] default_device_exit_batch (net/core/dev.c:12673) 
[ 49.952325][ T12] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 49.952764][ T12] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 49.953082][ T12] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 49.953424][ T12] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 49.953757][ T12] cleanup_net (net/core/net_namespace.c:684) 
[ 49.954066][ T12] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 49.954622][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.954957][ T12] process_one_work (kernel/workqueue.c:3238) 
[ 49.955608][ T12] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 49.955992][ T12] ? assign_work (kernel/workqueue.c:1200) 
[ 49.956308][ T12] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 49.956647][ T12] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 49.956959][ T12] kthread (kernel/kthread.c:464) 
[ 49.957197][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 49.957519][ T12] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 49.957845][ T12] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 49.958159][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.958726][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 49.959035][ T12] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 49.959338][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 49.959875][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   61.532288][  T609] ------------[ cut here ]------------
| [ 61.532625][ T609] WARNING: CPU: 3 PID: 609 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) 
| [   61.533282][  T609] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   61.534546][  T609] Tainted: [W]=WARN
[   61.534782][  T609] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 61.535168][ T609] 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) 
[ 61.535477][ T609] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   61.536560][  T609] RSP: 0018:ffffc90000f96ef0 EFLAGS: 00010246
[   61.536953][  T609] RAX: 0000000000000000 RBX: ffff88800c1ba000 RCX: 0000000000000001
[   61.537398][  T609] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[   61.537869][  T609] RBP: ffffc90000f96fd8 R08: 0000000000000000 R09: 0000000000000000
[   61.538329][  T609] R10: ffffc90000f97008 R11: ffffffffb1f8d1e0 R12: 1ffff920001f2de2
[   61.538792][  T609] R13: 00000000000005dc R14: ffffc90000f97008 R15: ffff88800c1baf48
[   61.539243][  T609] FS:  00007fc0dc945800(0000) GS:ffff8880b9519000(0000) knlGS:0000000000000000
[   61.539787][  T609] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   61.540163][  T609] CR2: 00000000004e6888 CR3: 000000000c468006 CR4: 0000000000772ef0
[   61.540610][  T609] PKRU: 55555554
[   61.540844][  T609] Call Trace:
[   61.541065][  T609]  <TASK>
[ 61.541220][ T609] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 61.541517][ T609] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 61.541850][ T609] netif_set_mtu (net/core/dev.c:9652) 
[ 61.542155][ T609] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 61.542473][ T609] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 61.542710][ T609] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 61.543013][ T609] br_add_if (net/bridge/br_if.c:697) 
[ 61.543248][ T609] do_set_master (net/core/rtnetlink.c:2948) 
[ 61.543544][ T609] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 61.543855][ T609] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 61.544163][ T609] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 61.544537][ T609] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 61.544843][ T609] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 61.545139][ T609] ? __kernel_text_address (kernel/extable.c:79) 
[ 61.545444][ T609] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 61.545767][ T609] ? __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) 
[ 61.546067][ T609] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 61.546447][ T609] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 61.546754][ T609] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 61.547050][ T609] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 61.547344][ T609] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 61.547654][ T609] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 61.547978][ T609] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 61.548270][ T609] ? __create_object (mm/kmemleak.c:771) 
[ 61.548571][ T609] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 61.548880][ T609] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 61.549180][ T609] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 61.549543][ T609] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 61.549871][ T609] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 61.550174][ T609] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 61.550470][ T609] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 61.550782][ T609] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 61.551089][ T609] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 61.551383][ T609] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 61.551697][ T609] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 61.551994][ T609] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 61.552295][ T609] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 61.552609][ T609] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 61.552922][ T609] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 61.553218][ T609] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 61.553524][ T609] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 61.553854][ T609] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 61.554151][ T609] ? 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) 
[ 61.554448][ T609] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 61.554756][ T609] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 61.555052][ T609] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 61.555354][ T609] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 61.555680][ T609] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 61.555995][ T609] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 61.556302][ T609] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 61.556607][ T609] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 61.556916][ T609] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 61.557301][ T609] ___sys_sendmsg (net/socket.c:2670) 
[ 61.557595][ T609] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 61.557916][ T609] ? __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) 
[ 61.558289][ T609] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 61.558591][ T609] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 61.558899][ T609] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 61.559202][ T609] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 61.559499][ T609] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 61.559804][ T609] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 61.560118][ T609] __sys_sendmsg (net/socket.c:2700) 
[ 61.560411][ T609] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 61.560786][ T609] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 61.561095][ T609] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 61.561396][ T609] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 61.561713][ T609] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   61.562080][  T609] RIP: 0033:0x7fc0dcb121e7
[ 61.562399][ T609] 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)
[   61.563538][  T609] RSP: 002b:00007ffcbcc4f598 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   61.564023][  T609] RAX: ffffffffffffffda RBX: 00007ffcbcc4fcd0 RCX: 00007fc0dcb121e7
[   61.564493][  T609] RDX: 0000000000000000 RSI: 00007ffcbcc4f600 RDI: 0000000000000005
[   61.565186][  T609] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   61.565673][  T609] R10: 000000003fa7b910 R11: 0000000000000246 R12: 0000000000000005
[   61.566363][  T609] R13: 00000000686e4710 R14: 0000000000499600 R15: 0000000000000000
| [   61.954779][  T613] ------------[ cut here ]------------
| [ 61.955094][ T613] WARNING: CPU: 3 PID: 613 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) 
| [   61.956411][  T613] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   61.957560][  T613] Tainted: [W]=WARN
[   61.957799][  T613] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 61.958180][ T613] 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) 
[ 61.958495][ T613] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   61.959592][  T613] RSP: 0018:ffffc90000fb7080 EFLAGS: 00010246
[   61.959987][  T613] RAX: 0000000000000000 RBX: ffff88800c1ba000 RCX: 0000000000000001
[   61.960443][  T613] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[   61.960915][  T613] RBP: ffffc90000fb7168 R08: 0000000000000000 R09: 0000000000000000
[   61.961370][  T613] R10: ffffc90000fb7198 R11: ffffffffb28ceab8 R12: 1ffff920001f6e14
[   61.961835][  T613] R13: 00000000000005dc R14: ffffc90000fb7198 R15: ffff88800c1baf48
[   61.962289][  T613] FS:  00007f493d8ed800(0000) GS:ffff8880b9519000(0000) knlGS:0000000000000000
[   61.962860][  T613] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   61.963244][  T613] CR2: 000000000043d940 CR3: 000000000b0de003 CR4: 0000000000772ef0
[   61.963712][  T613] PKRU: 55555554
[   61.963941][  T613] Call Trace:
[   61.964167][  T613]  <TASK>
[ 61.964324][ T613] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 61.964642][ T613] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 61.964948][ T613] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 61.965330][ T613] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 61.965649][ T613] netif_set_mtu (net/core/dev.c:9652) 
[ 61.965962][ T613] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 61.966278][ T613] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 61.966672][ T613] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 61.966905][ T613] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 61.967214][ T613] br_add_if (net/bridge/br_if.c:697) 
[ 61.967468][ T613] do_set_master (net/core/rtnetlink.c:2948) 
[ 61.967781][ T613] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 61.968088][ T613] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 61.968393][ T613] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 61.968704][ T613] ? __dev_get_by_name (net/core/dev.c:865) 
[ 61.969009][ T613] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 61.969312][ T613] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 61.969630][ T613] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 61.969943][ T613] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 61.970251][ T613] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 61.970564][ T613] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 61.970886][ T613] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 61.971203][ T613] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 61.971505][ T613] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 61.971820][ T613] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 61.972131][ T613] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 61.972447][ T613] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 61.972768][ T613] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 61.973076][ T613] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 61.973389][ T613] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 61.973709][ T613] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 61.974025][ T613] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 61.974332][ T613] ? 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) 
[ 61.974649][ T613] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 61.974957][ T613] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 61.975261][ T613] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 61.975570][ T613] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 61.975891][ T613] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 61.976195][ T613] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 61.976516][ T613] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 61.976834][ T613] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 61.977137][ T613] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 61.977539][ T613] ___sys_sendmsg (net/socket.c:2670) 
[ 61.977863][ T613] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 61.978169][ T613] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 61.978478][ T613] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 61.978802][ T613] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 61.979113][ T613] ? __handle_mm_fault (mm/memory.c:6212) 
[ 61.979419][ T613] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 61.979732][ T613] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 61.980061][ T613] __sys_sendmsg (net/socket.c:2700) 
[ 61.980365][ T613] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 61.980682][ T613] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 61.980994][ T613] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 61.981298][ T613] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 61.981608][ T613] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 61.981931][ T613] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   61.982337][  T613] RIP: 0033:0x7f493daba1e7
[ 61.982682][ T613] 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)
[   61.983800][  T613] RSP: 002b:00007fffcfbcb528 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   61.984258][  T613] RAX: ffffffffffffffda RBX: 00007fffcfbcbc60 RCX: 00007f493daba1e7
[   61.984734][  T613] RDX: 0000000000000000 RSI: 00007fffcfbcb590 RDI: 0000000000000005
[   61.985206][  T613] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   61.985680][  T613] R10: 00007f493db48ac0 R11: 0000000000000246 R12: 00007fffcfbcbc98
[   61.986134][  T613] R13: 00000000686e4710 R14: 0000000000499600 R15: 00007fffcfbcb680
| [   64.301055][  T630] ------------[ cut here ]------------
| [ 64.301408][ T630] WARNING: CPU: 1 PID: 630 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) 
| [   64.302082][  T630] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   64.303328][  T630] Tainted: [W]=WARN
[   64.303589][  T630] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 64.304006][ T630] 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) 
[ 64.304351][ T630] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   64.305564][  T630] RSP: 0018:ffffc90001016ef0 EFLAGS: 00010246
[   64.306009][  T630] RAX: 0000000000000000 RBX: ffff88800a9d2000 RCX: 0000000000000001
[   64.306551][  T630] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[   64.307059][  T630] RBP: ffffc90001016fd8 R08: 0000000000000000 R09: 0000000000000000
[   64.307577][  T630] R10: ffffc90001017008 R11: ffffffffb1f8d1e0 R12: 1ffff92000202de2
[   64.308119][  T630] R13: 00000000000005dc R14: ffffc90001017008 R15: ffff88800a9d2f48
[   64.308618][  T630] FS:  00007fe6f62d0800(0000) GS:ffff8880b9419000(0000) knlGS:0000000000000000
[   64.309263][  T630] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   64.309676][  T630] CR2: 00000000004e6888 CR3: 0000000011753003 CR4: 0000000000772ef0
[   64.310162][  T630] PKRU: 55555554
[   64.310406][  T630] Call Trace:
[   64.310646][  T630]  <TASK>
[ 64.310809][ T630] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 64.311140][ T630] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.311477][ T630] netif_set_mtu (net/core/dev.c:9652) 
[ 64.311841][ T630] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 64.312161][ T630] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 64.312407][ T630] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 64.312731][ T630] br_add_if (net/bridge/br_if.c:697) 
[ 64.312974][ T630] do_set_master (net/core/rtnetlink.c:2948) 
[ 64.313296][ T630] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 64.313626][ T630] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 64.313958][ T630] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 64.314344][ T630] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 64.314677][ T630] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 64.315018][ T630] ? __kernel_text_address (kernel/extable.c:79) 
[ 64.315335][ T630] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.315661][ T630] ? __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) 
[ 64.315985][ T630] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 64.316367][ T630] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 64.316682][ T630] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 64.316993][ T630] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 64.317313][ T630] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 64.317622][ T630] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 64.317951][ T630] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 64.318258][ T630] ? __create_object (mm/kmemleak.c:771) 
[ 64.318586][ T630] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 64.318902][ T630] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 64.319224][ T630] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 64.319622][ T630] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 64.319956][ T630] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 64.320282][ T630] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 64.320645][ T630] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.320980][ T630] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 64.321302][ T630] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 64.321692][ T630] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 64.322021][ T630] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 64.322403][ T630] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 64.322792][ T630] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 64.323159][ T630] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.323507][ T630] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 64.323893][ T630] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 64.324277][ T630] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 64.324656][ T630] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 64.324995][ T630] ? 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) 
[ 64.325317][ T630] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 64.325656][ T630] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 64.325977][ T630] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.326297][ T630] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 64.326606][ T630] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 64.326918][ T630] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 64.327236][ T630] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 64.327558][ T630] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 64.327907][ T630] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 64.328331][ T630] ___sys_sendmsg (net/socket.c:2670) 
[ 64.328669][ T630] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 64.329001][ T630] ? __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) 
[ 64.329411][ T630] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 64.329786][ T630] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 64.330154][ T630] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.330543][ T630] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 64.330943][ T630] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 64.331311][ T630] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 64.331691][ T630] __sys_sendmsg (net/socket.c:2700) 
[ 64.332064][ T630] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 64.332549][ T630] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 64.332946][ T630] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 64.333318][ T630] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 64.333726][ T630] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   64.334189][  T630] RIP: 0033:0x7fe6f649d1e7
[ 64.334575][ T630] 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)
[   64.335870][  T630] RSP: 002b:00007fff00136628 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   64.336422][  T630] RAX: ffffffffffffffda RBX: 00007fff00136d60 RCX: 00007fe6f649d1e7
[   64.336970][  T630] RDX: 0000000000000000 RSI: 00007fff00136690 RDI: 0000000000000005
[   64.337558][  T630] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   64.338103][  T630] R10: 0000000025cfc910 R11: 0000000000000246 R12: 0000000000000005
[   64.338616][  T630] R13: 00000000686e4712 R14: 0000000000499600 R15: 0000000000000000
| [   64.740393][  T633] ------------[ cut here ]------------
| [ 64.741346][ T633] WARNING: CPU: 3 PID: 633 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) 
| [   64.741957][  T633] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   64.743069][  T633] Tainted: [W]=WARN
[   64.743302][  T633] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 64.743714][ T633] 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) 
[ 64.744035][ T633] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   64.745140][  T633] RSP: 0018:ffffc90001067080 EFLAGS: 00010246
[   64.745535][  T633] RAX: 0000000000000000 RBX: ffff88800a9d2000 RCX: 0000000000000001
[   64.746000][  T633] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[   64.746454][  T633] RBP: ffffc90001067168 R08: 0000000000000000 R09: 0000000000000000
[   64.746928][  T633] R10: ffffc90001067198 R11: ffffffffb28ceab8 R12: 1ffff9200020ce14
[   64.747388][  T633] R13: 00000000000005dc R14: ffffc90001067198 R15: ffff88800a9d2f48
[   64.747866][  T633] FS:  00007fdc092fc800(0000) GS:ffff8880b9519000(0000) knlGS:0000000000000000
[   64.748407][  T633] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   64.748801][  T633] CR2: 000000000043d940 CR3: 0000000005442004 CR4: 0000000000772ef0
[   64.749278][  T633] PKRU: 55555554
[   64.749508][  T633] Call Trace:
[   64.749743][  T633]  <TASK>
[ 64.749905][ T633] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 64.750216][ T633] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 64.750524][ T633] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 64.750913][ T633] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 64.751229][ T633] netif_set_mtu (net/core/dev.c:9652) 
[ 64.751533][ T633] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 64.751867][ T633] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 64.752254][ T633] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 64.752493][ T633] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 64.752813][ T633] br_add_if (net/bridge/br_if.c:697) 
[ 64.753063][ T633] do_set_master (net/core/rtnetlink.c:2948) 
[ 64.753366][ T633] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 64.753695][ T633] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 64.754004][ T633] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 64.754308][ T633] ? __dev_get_by_name (net/core/dev.c:865) 
[ 64.754613][ T633] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 64.754925][ T633] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 64.755236][ T633] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 64.755538][ T633] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 64.755872][ T633] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 64.756189][ T633] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 64.756495][ T633] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 64.756819][ T633] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 64.757128][ T633] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 64.757461][ T633] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 64.757776][ T633] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 64.758083][ T633] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 64.758396][ T633] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.758711][ T633] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 64.759021][ T633] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 64.759325][ T633] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 64.759665][ T633] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 64.759976][ T633] ? 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) 
[ 64.760282][ T633] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 64.760597][ T633] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 64.760912][ T633] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.761219][ T633] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 64.761549][ T633] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 64.761863][ T633] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 64.762176][ T633] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 64.762492][ T633] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 64.762810][ T633] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 64.763199][ T633] ___sys_sendmsg (net/socket.c:2670) 
[ 64.763504][ T633] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 64.763824][ T633] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 64.764136][ T633] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 64.764437][ T633] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 64.764753][ T633] ? __handle_mm_fault (mm/memory.c:6212) 
[ 64.765061][ T633] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 64.765362][ T633] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 64.765693][ T633] __sys_sendmsg (net/socket.c:2700) 
[ 64.765996][ T633] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 64.766299][ T633] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 64.766608][ T633] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 64.766929][ T633] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 64.767239][ T633] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 64.767541][ T633] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   64.767935][  T633] RIP: 0033:0x7fdc094c91e7
[ 64.768254][ T633] 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)
[   64.769353][  T633] RSP: 002b:00007fffcd117248 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   64.769816][  T633] RAX: ffffffffffffffda RBX: 00007fffcd117980 RCX: 00007fdc094c91e7
[   64.770274][  T633] RDX: 0000000000000000 RSI: 00007fffcd1172b0 RDI: 0000000000000005
[   64.770734][  T633] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   64.771196][  T633] R10: 00007fdc09557ac0 R11: 0000000000000246 R12: 00007fffcd1179b8
[   64.771669][  T633] R13: 00000000686e4713 R14: 0000000000499600 R15: 00007fffcd1173a0
| [   76.182191][   T12] ------------[ cut here ]------------
| [ 76.182597][ T12] WARNING: CPU: 0 PID: 12 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   76.183150][   T12] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   76.184308][   T12] Tainted: [W]=WARN
[   76.184533][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   76.184916][   T12] Workqueue: netns cleanup_net
[ 76.185225][ T12] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 76.185531][ T12] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   76.186626][   T12] RSP: 0018:ffffc900000c75b0 EFLAGS: 00010246
[   76.187019][   T12] RAX: 0000000000000000 RBX: ffff88800c1ba000 RCX: 0000000000000001
[   76.187470][   T12] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[   76.187927][   T12] RBP: ffffc900000c7698 R08: 0000000000000000 R09: 0000000000000000
[   76.188373][   T12] R10: ffffc900000c76c8 R11: ffffffffb1f8d1e0 R12: 1ffff92000018eba
[   76.188829][   T12] R13: 00000000000005dc R14: ffffc900000c76c8 R15: ffff88800c1baf48
[   76.189271][   T12] FS:  0000000000000000(0000) GS:ffff8880b9399000(0000) knlGS:0000000000000000
[   76.189814][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   76.190203][   T12] CR2: 00005579b2b3d368 CR3: 000000002a94a003 CR4: 0000000000772ef0
[   76.190662][   T12] PKRU: 55555554
[   76.190889][   T12] Call Trace:
[   76.191110][   T12]  <TASK>
[ 76.191262][ T12] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 76.191819][ T12] ? br_del_if (net/bridge/br_if.c:742) 
[ 76.192050][ T12] ? br_device_event (net/bridge/br.c:141) 
[ 76.192346][ T12] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 76.192943][ T12] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 76.193242][ T12] ? cleanup_net (net/core/net_namespace.c:684) 
[ 76.193533][ T12] ? process_one_work (kernel/workqueue.c:3238) 
[ 76.193975][ T12] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 76.194275][ T12] ? kthread (kernel/kthread.c:464) 
[ 76.194496][ T12] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 76.194941][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 76.195247][ T12] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 76.195562][ T12] netif_set_mtu (net/core/dev.c:9652) 
[ 76.196040][ T12] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 76.196352][ T12] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 76.196576][ T12] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 76.196987][ T12] br_del_if (net/bridge/br_if.c:743) 
[ 76.197211][ T12] br_device_event (net/bridge/br.c:141) 
[ 76.197501][ T12] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 76.197820][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 76.198121][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 76.198489][ T12] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 76.198790][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 76.199153][ T12] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 76.199516][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 76.199887][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 76.200270][ T12] default_device_exit_batch (net/core/dev.c:12673) 
[ 76.200568][ T12] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 76.200948][ T12] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 76.201278][ T12] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 76.201566][ T12] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 76.201873][ T12] cleanup_net (net/core/net_namespace.c:684) 
[ 76.202172][ T12] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 76.202479][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 76.202789][ T12] process_one_work (kernel/workqueue.c:3238) 
[ 76.203093][ T12] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 76.203395][ T12] ? assign_work (kernel/workqueue.c:1200) 
[ 76.203704][ T12] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 76.204007][ T12] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 76.204303][ T12] kthread (kernel/kthread.c:464) 
[ 76.204531][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 76.204831][ T12] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 76.205123][ T12] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 76.205420][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 76.205721][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 76.206016][ T12] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 76.206309][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 76.206600][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   76.679676][   T12] ------------[ cut here ]------------
| [ 76.679992][ T12] WARNING: CPU: 3 PID: 12 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   76.680497][   T12] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   76.681645][   T12] Tainted: [W]=WARN
[   76.681875][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   76.682249][   T12] Workqueue: netns cleanup_net
[ 76.682567][ T12] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 76.683066][ T12] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   76.684476][   T12] RSP: 0018:ffffc900000c75b0 EFLAGS: 00010246
[   76.684987][   T12] RAX: 0000000000000000 RBX: ffff88800a9d2000 RCX: 0000000000000001
[   76.685425][   T12] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[   76.686012][   T12] RBP: ffffc900000c7698 R08: 0000000000000000 R09: 0000000000000000
[   76.686447][   T12] R10: ffffc900000c76c8 R11: ffffffffb1f8d1e0 R12: 1ffff92000018eba
[   76.687007][   T12] R13: 00000000000005dc R14: ffffc900000c76c8 R15: ffff88800a9d2f48
[   76.687444][   T12] FS:  0000000000000000(0000) GS:ffff8880b9519000(0000) knlGS:0000000000000000
[   76.687965][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   76.688330][   T12] CR2: 00005579b2b3e9c8 CR3: 000000002a94a001 CR4: 0000000000772ef0
[   76.688784][   T12] PKRU: 55555554
[   76.689002][   T12] Call Trace:
[   76.689222][   T12]  <TASK>
[ 76.689371][ T12] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 76.689742][ T12] ? br_del_if (net/bridge/br_if.c:742) 
[ 76.689968][ T12] ? br_device_event (net/bridge/br.c:141) 
[ 76.690254][ T12] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 76.690548][ T12] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 76.690851][ T12] ? cleanup_net (net/core/net_namespace.c:684) 
[ 76.691139][ T12] ? process_one_work (kernel/workqueue.c:3238) 
[ 76.691429][ T12] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 76.691726][ T12] ? kthread (kernel/kthread.c:464) 
[ 76.691946][ T12] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 76.692236][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 76.692552][ T12] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 76.692868][ T12] netif_set_mtu (net/core/dev.c:9652) 
[ 76.693167][ T12] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 76.693477][ T12] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 76.693710][ T12] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 76.694012][ T12] br_del_if (net/bridge/br_if.c:743) 
[ 76.694234][ T12] br_device_event (net/bridge/br.c:141) 
[ 76.694525][ T12] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 76.694830][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 76.695135][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 76.695507][ T12] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 76.695806][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 76.696169][ T12] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 76.696526][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 76.696898][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 76.697271][ T12] default_device_exit_batch (net/core/dev.c:12673) 
[ 76.697568][ T12] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 76.697957][ T12] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 76.698257][ T12] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 76.698547][ T12] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 76.698858][ T12] cleanup_net (net/core/net_namespace.c:684) 
[ 76.699157][ T12] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 76.699450][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 76.699758][ T12] process_one_work (kernel/workqueue.c:3238) 
[ 76.700063][ T12] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 76.700369][ T12] ? assign_work (kernel/workqueue.c:1200) 
[ 76.700674][ T12] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 76.700974][ T12] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 76.701270][ T12] kthread (kernel/kthread.c:464) 
[ 76.701492][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 76.701793][ T12] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 76.702083][ T12] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 76.702381][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 76.702705][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 76.703000][ T12] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 76.703292][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 76.703578][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   88.323854][  T800] ------------[ cut here ]------------
| [ 88.324195][ T800] WARNING: CPU: 0 PID: 800 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) 
| [   88.324803][  T800] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   88.325883][  T800] Tainted: [W]=WARN
[   88.326109][  T800] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 88.326491][ T800] 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) 
[ 88.326805][ T800] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   88.327901][  T800] RSP: 0018:ffffc90001706ef0 EFLAGS: 00010246
[   88.328286][  T800] RAX: 0000000000000000 RBX: ffff888005d3a000 RCX: 0000000000000001
[   88.328740][  T800] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[   88.329190][  T800] RBP: ffffc90001706fd8 R08: 0000000000000000 R09: 0000000000000000
[   88.329651][  T800] R10: ffffc90001707008 R11: ffffffffb1f8d1e0 R12: 1ffff920002e0de2
[   88.330105][  T800] R13: 00000000000005dc R14: ffffc90001707008 R15: ffff888005d3af48
[   88.330547][  T800] FS:  00007fa8391f6800(0000) GS:ffff8880b9399000(0000) knlGS:0000000000000000
[   88.331081][  T800] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.331460][  T800] CR2: 00000000004e6888 CR3: 000000001116e004 CR4: 0000000000772ef0
[   88.331914][  T800] PKRU: 55555554
[   88.332137][  T800] Call Trace:
[   88.332357][  T800]  <TASK>
[ 88.332537][ T800] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 88.332852][ T800] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 88.333169][ T800] netif_set_mtu (net/core/dev.c:9652) 
[ 88.333481][ T800] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 88.333804][ T800] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 88.334032][ T800] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 88.334338][ T800] br_add_if (net/bridge/br_if.c:697) 
[ 88.334572][ T800] do_set_master (net/core/rtnetlink.c:2948) 
[ 88.334880][ T800] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 88.335184][ T800] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 88.335487][ T800] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 88.335877][ T800] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 88.336174][ T800] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 88.336472][ T800] ? __kernel_text_address (kernel/extable.c:79) 
[ 88.336779][ T800] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 88.337079][ T800] ? __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) 
[ 88.337379][ T800] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 88.337762][ T800] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 88.338066][ T800] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 88.338365][ T800] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 88.338683][ T800] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 88.338983][ T800] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 88.339281][ T800] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 88.339575][ T800] ? __create_object (mm/kmemleak.c:771) 
[ 88.339887][ T800] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 88.340194][ T800] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 88.340500][ T800] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 88.340880][ T800] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 88.341185][ T800] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 88.341489][ T800] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 88.341795][ T800] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 88.342102][ T800] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 88.342400][ T800] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 88.342717][ T800] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 88.343016][ T800] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 88.343310][ T800] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 88.343606][ T800] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 88.343919][ T800] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 88.344223][ T800] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 88.344518][ T800] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 88.344836][ T800] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 88.345147][ T800] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 88.345442][ T800] ? 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) 
[ 88.345749][ T800] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 88.346052][ T800] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 88.346345][ T800] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 88.346661][ T800] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 88.346971][ T800] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 88.347267][ T800] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 88.347568][ T800] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 88.347879][ T800] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 88.348179][ T800] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 88.348561][ T800] ___sys_sendmsg (net/socket.c:2670) 
[ 88.348866][ T800] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 88.349167][ T800] ? __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) 
[ 88.349535][ T800] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 88.349844][ T800] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 88.350147][ T800] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 88.350448][ T800] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 88.350756][ T800] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 88.351058][ T800] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 88.351362][ T800] __sys_sendmsg (net/socket.c:2700) 
[ 88.351704][ T800] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 88.352075][ T800] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 88.352382][ T800] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 88.352720][ T800] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 88.353024][ T800] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   88.353609][  T800] RIP: 0033:0x7fa8393c31e7
[ 88.353928][ T800] 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)
[   88.355226][  T800] RSP: 002b:00007ffeeaa72c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   88.355680][  T800] RAX: ffffffffffffffda RBX: 00007ffeeaa733a0 RCX: 00007fa8393c31e7
[   88.356120][  T800] RDX: 0000000000000000 RSI: 00007ffeeaa72cd0 RDI: 0000000000000005
[   88.356801][  T800] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   88.357242][  T800] R10: 0000000038b95910 R11: 0000000000000246 R12: 0000000000000005
[   88.357690][  T800] R13: 00000000686e472a R14: 0000000000499600 R15: 0000000000000000
| [   88.742177][  T803] ------------[ cut here ]------------
| [ 88.742510][ T803] WARNING: CPU: 3 PID: 803 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) 
| [   88.743510][  T803] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   88.744616][  T803] Tainted: [W]=WARN
[   88.744856][  T803] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 88.745238][ T803] 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) 
[ 88.745555][ T803] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   88.746666][  T803] RSP: 0018:ffffc90001737080 EFLAGS: 00010246
[   88.747060][  T803] RAX: 0000000000000000 RBX: ffff888005d3a000 RCX: 0000000000000001
[   88.747515][  T803] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[   88.747991][  T803] RBP: ffffc90001737168 R08: 0000000000000000 R09: 0000000000000000
[   88.748450][  T803] R10: ffffc90001737198 R11: ffffffffb28ceab8 R12: 1ffff920002e6e14
[   88.748916][  T803] R13: 00000000000005dc R14: ffffc90001737198 R15: ffff888005d3af48
[   88.749372][  T803] FS:  00007f950b83f800(0000) GS:ffff8880b9519000(0000) knlGS:0000000000000000
[   88.749918][  T803] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.750304][  T803] CR2: 000000000043d940 CR3: 0000000005c3b004 CR4: 0000000000772ef0
[   88.750772][  T803] PKRU: 55555554
[   88.751004][  T803] Call Trace:
[   88.751231][  T803]  <TASK>
[ 88.751393][ T803] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 88.751735][ T803] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 88.752046][ T803] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 88.752426][ T803] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 88.752896][ T803] netif_set_mtu (net/core/dev.c:9652) 
[ 88.753207][ T803] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 88.753521][ T803] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 88.754076][ T803] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 88.754317][ T803] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 88.754626][ T803] br_add_if (net/bridge/br_if.c:697) 
[ 88.754929][ T803] do_set_master (net/core/rtnetlink.c:2948) 
[ 88.755231][ T803] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 88.755540][ T803] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 88.755874][ T803] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 88.756176][ T803] ? __dev_get_by_name (net/core/dev.c:865) 
[ 88.756483][ T803] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 88.756803][ T803] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 88.757112][ T803] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 88.757411][ T803] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 88.757729][ T803] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 88.758045][ T803] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 88.758353][ T803] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 88.758685][ T803] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 88.758993][ T803] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 88.759297][ T803] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 88.759600][ T803] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 88.759931][ T803] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 88.760248][ T803] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 88.760555][ T803] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 88.760868][ T803] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 88.761176][ T803] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 88.761499][ T803] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 88.761811][ T803] ? 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) 
[ 88.762118][ T803] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 88.762423][ T803] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 88.762743][ T803] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 88.763054][ T803] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 88.763363][ T803] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 88.763700][ T803] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 88.764014][ T803] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 88.764322][ T803] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 88.764623][ T803] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 88.765024][ T803] ___sys_sendmsg (net/socket.c:2670) 
[ 88.765339][ T803] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 88.765654][ T803] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 88.765972][ T803] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 88.766274][ T803] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 88.766583][ T803] ? __handle_mm_fault (mm/memory.c:6212) 
[ 88.766900][ T803] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 88.767203][ T803] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 88.767541][ T803] __sys_sendmsg (net/socket.c:2700) 
[ 88.767877][ T803] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 88.768186][ T803] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 88.768503][ T803] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 88.768815][ T803] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 88.769132][ T803] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 88.769438][ T803] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   88.769825][  T803] RIP: 0033:0x7f950ba0c1e7
[ 88.770142][ T803] 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)
[   88.771237][  T803] RSP: 002b:00007ffe70117198 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   88.771716][  T803] RAX: ffffffffffffffda RBX: 00007ffe701178d0 RCX: 00007f950ba0c1e7
[   88.772192][  T803] RDX: 0000000000000000 RSI: 00007ffe70117200 RDI: 0000000000000005
[   88.772669][  T803] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   88.773125][  T803] R10: 00007f950ba9aac0 R11: 0000000000000246 R12: 00007ffe70117908
[   88.773580][  T803] R13: 00000000686e472b R14: 0000000000499600 R15: 00007ffe701172f0
| [   90.911459][  T820] ------------[ cut here ]------------
| [ 90.911798][ T820] WARNING: CPU: 0 PID: 820 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) 
| [   90.912398][  T820] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   90.913496][  T820] Tainted: [W]=WARN
[   90.913735][  T820] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 90.914117][ T820] 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) 
[ 90.914425][ T820] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   90.916537][  T820] RSP: 0018:ffffc900017d6ef0 EFLAGS: 00010246
[   90.916936][  T820] RAX: 0000000000000000 RBX: ffff88801126a000 RCX: 0000000000000001
[   90.917391][  T820] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[   90.917848][  T820] RBP: ffffc900017d6fd8 R08: 0000000000000000 R09: 0000000000000000
[   90.918298][  T820] R10: ffffc900017d7008 R11: ffffffffb1f8d1e0 R12: 1ffff920002fade2
[   90.918753][  T820] R13: 00000000000005dc R14: ffffc900017d7008 R15: ffff88801126af48
[   90.919208][  T820] FS:  00007fc1d41cb800(0000) GS:ffff8880b9399000(0000) knlGS:0000000000000000
[   90.919740][  T820] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.920119][  T820] CR2: 00000000004e6888 CR3: 000000000f729003 CR4: 0000000000772ef0
[   90.920571][  T820] PKRU: 55555554
[   90.920826][  T820] Call Trace:
[   90.921049][  T820]  <TASK>
[ 90.921211][ T820] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 90.921521][ T820] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 90.921843][ T820] netif_set_mtu (net/core/dev.c:9652) 
[ 90.922144][ T820] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 90.922468][ T820] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 90.922713][ T820] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 90.923018][ T820] br_add_if (net/bridge/br_if.c:697) 
[ 90.923256][ T820] do_set_master (net/core/rtnetlink.c:2948) 
[ 90.923567][ T820] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 90.923885][ T820] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 90.924187][ T820] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 90.924567][ T820] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 90.924880][ T820] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 90.925178][ T820] ? __kernel_text_address (kernel/extable.c:79) 
[ 90.925489][ T820] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 90.925805][ T820] ? __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) 
[ 90.926106][ T820] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 90.926478][ T820] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 90.926792][ T820] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 90.927092][ T820] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 90.927391][ T820] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 90.927707][ T820] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 90.928015][ T820] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 90.928311][ T820] ? __create_object (mm/kmemleak.c:771) 
[ 90.928613][ T820] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 90.928936][ T820] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 90.929244][ T820] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 90.929616][ T820] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 90.929933][ T820] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 90.930243][ T820] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 90.930544][ T820] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 90.930869][ T820] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 90.931177][ T820] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 90.931475][ T820] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 90.931789][ T820] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 90.932089][ T820] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 90.932391][ T820] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 90.932744][ T820] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 90.933050][ T820] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 90.933351][ T820] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 90.933674][ T820] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 90.933990][ T820] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 90.934287][ T820] ? 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) 
[ 90.934589][ T820] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 90.934903][ T820] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 90.935199][ T820] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 90.935504][ T820] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 90.935817][ T820] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 90.936118][ T820] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 90.936426][ T820] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 90.936740][ T820] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 90.937048][ T820] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 90.937429][ T820] ___sys_sendmsg (net/socket.c:2670) 
[ 90.937735][ T820] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 90.938029][ T820] ? __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) 
[ 90.938395][ T820] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 90.938708][ T820] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 90.939013][ T820] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 90.939321][ T820] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 90.939616][ T820] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 90.939932][ T820] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 90.940241][ T820] __sys_sendmsg (net/socket.c:2700) 
[ 90.940538][ T820] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 90.940928][ T820] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 90.941273][ T820] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 90.941570][ T820] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 90.941890][ T820] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   90.942255][  T820] RIP: 0033:0x7fc1d43981e7
[ 90.942580][ T820] 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)
[   90.943655][  T820] RSP: 002b:00007ffd39e4d678 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   90.944106][  T820] RAX: ffffffffffffffda RBX: 00007ffd39e4ddb0 RCX: 00007fc1d43981e7
[   90.944550][  T820] RDX: 0000000000000000 RSI: 00007ffd39e4d6e0 RDI: 0000000000000005
[   90.945008][  T820] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   90.945452][  T820] R10: 000000000cf70910 R11: 0000000000000246 R12: 0000000000000005
[   90.945911][  T820] R13: 00000000686e472d R14: 0000000000499600 R15: 0000000000000000
| [   91.363454][  T823] ------------[ cut here ]------------
| [ 91.363798][ T823] WARNING: CPU: 3 PID: 823 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) 
| [   91.364414][  T823] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   91.365534][  T823] Tainted: [W]=WARN
[   91.365777][  T823] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 91.366162][ T823] 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) 
[ 91.366477][ T823] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   91.367594][  T823] RSP: 0018:ffffc900017f7080 EFLAGS: 00010246
[   91.367991][  T823] RAX: 0000000000000000 RBX: ffff88801126a000 RCX: 0000000000000001
[   91.368453][  T823] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[   91.368932][  T823] RBP: ffffc900017f7168 R08: 0000000000000000 R09: 0000000000000000
[   91.369392][  T823] R10: ffffc900017f7198 R11: ffffffffb1f8d1e0 R12: 1ffff920002fee14
[   91.369863][  T823] R13: 00000000000005dc R14: ffffc900017f7198 R15: ffff88801126af48
[   91.370326][  T823] FS:  00007fdaa5f6a800(0000) GS:ffff8880b9519000(0000) knlGS:0000000000000000
[   91.370917][  T823] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   91.371311][  T823] CR2: 000000000043d940 CR3: 000000000f755006 CR4: 0000000000772ef0
[   91.371795][  T823] PKRU: 55555554
[   91.372034][  T823] Call Trace:
[   91.372270][  T823]  <TASK>
[ 91.372449][ T823] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 91.372785][ T823] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 91.373131][ T823] netif_set_mtu (net/core/dev.c:9652) 
[ 91.373456][ T823] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 91.373805][ T823] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 91.374054][ T823] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 91.374382][ T823] br_add_if (net/bridge/br_if.c:697) 
[ 91.374649][ T823] do_set_master (net/core/rtnetlink.c:2948) 
[ 91.374973][ T823] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 91.375291][ T823] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 91.375621][ T823] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 91.375950][ T823] ? __dev_get_by_name (net/core/dev.c:865) 
[ 91.376277][ T823] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 91.376596][ T823] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 91.376924][ T823] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 91.377235][ T823] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 91.377552][ T823] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 91.377882][ T823] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 91.378199][ T823] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 91.378517][ T823] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 91.378839][ T823] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 91.379152][ T823] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 91.379459][ T823] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 91.379775][ T823] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 91.380092][ T823] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 91.380409][ T823] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 91.380726][ T823] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 91.381034][ T823] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 91.381353][ T823] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 91.381668][ T823] ? 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) 
[ 91.381978][ T823] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 91.382286][ T823] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 91.382605][ T823] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 91.382927][ T823] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 91.383239][ T823] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 91.383544][ T823] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 91.383870][ T823] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 91.384182][ T823] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 91.384487][ T823] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 91.384897][ T823] ___sys_sendmsg (net/socket.c:2670) 
[ 91.385207][ T823] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 91.385513][ T823] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 91.385834][ T823] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 91.386141][ T823] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 91.386463][ T823] ? __handle_mm_fault (mm/memory.c:6212) 
[ 91.386780][ T823] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 91.387110][ T823] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 91.387442][ T823] __sys_sendmsg (net/socket.c:2700) 
[ 91.387766][ T823] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 91.388076][ T823] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 91.388390][ T823] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 91.388703][ T823] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 91.389015][ T823] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 91.389331][ T823] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   91.389724][  T823] RIP: 0033:0x7fdaa61371e7
[ 91.390046][ T823] 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)
[   91.391161][  T823] RSP: 002b:00007ffd17762b28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   91.391660][  T823] RAX: ffffffffffffffda RBX: 00007ffd17763260 RCX: 00007fdaa61371e7
[   91.392133][  T823] RDX: 0000000000000000 RSI: 00007ffd17762b90 RDI: 0000000000000005
[   91.392603][  T823] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   91.393082][  T823] R10: 00007fdaa61c5ac0 R11: 0000000000000246 R12: 00007ffd17763298
[   91.393553][  T823] R13: 00000000686e472d R14: 0000000000499600 R15: 00007ffd17762c80
| [  119.406659][   T12] ------------[ cut here ]------------
| [ 119.407017][ T12] WARNING: CPU: 2 PID: 12 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  119.407532][   T12] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  119.408992][   T12] Tainted: [W]=WARN
[  119.409230][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  119.409615][   T12] Workqueue: netns cleanup_net
[ 119.409968][ T12] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 119.410286][ T12] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  119.411570][   T12] RSP: 0018:ffffc900000c75b0 EFLAGS: 00010246
[  119.412259][   T12] RAX: 0000000000000000 RBX: ffff888005d3a000 RCX: 0000000000000001
[  119.412867][   T12] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[  119.413399][   T12] RBP: ffffc900000c7698 R08: 0000000000000000 R09: 0000000000000000
[  119.413854][   T12] R10: ffffc900000c76c8 R11: ffffffffb1f8d1e0 R12: 1ffff92000018eba
[  119.414317][   T12] R13: 00000000000005dc R14: ffffc900000c76c8 R15: ffff888005d3af48
[  119.414782][   T12] FS:  0000000000000000(0000) GS:ffff8880b9499000(0000) knlGS:0000000000000000
[  119.415330][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  119.415725][   T12] CR2: 00007f07e4bb1050 CR3: 000000002a94a003 CR4: 0000000000772ef0
[  119.416199][   T12] PKRU: 55555554
[  119.416448][   T12] Call Trace:
[  119.416699][   T12]  <TASK>
[ 119.416862][ T12] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 119.417266][ T12] ? br_del_if (net/bridge/br_if.c:742) 
[ 119.417514][ T12] ? br_device_event (net/bridge/br.c:141) 
[ 119.417825][ T12] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 119.418160][ T12] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 119.418463][ T12] ? cleanup_net (net/core/net_namespace.c:684) 
[ 119.418787][ T12] ? process_one_work (kernel/workqueue.c:3238) 
[ 119.419117][ T12] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 119.419426][ T12] ? kthread (kernel/kthread.c:464) 
[ 119.419675][ T12] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 119.419987][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 119.420309][ T12] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 119.420643][ T12] netif_set_mtu (net/core/dev.c:9652) 
[ 119.420952][ T12] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 119.421289][ T12] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 119.421531][ T12] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 119.421862][ T12] br_del_if (net/bridge/br_if.c:743) 
[ 119.422117][ T12] br_device_event (net/bridge/br.c:141) 
[ 119.422430][ T12] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 119.422764][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 119.423077][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 119.423479][ T12] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 119.423805][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 119.424204][ T12] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 119.424580][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 119.424966][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 119.425372][ T12] default_device_exit_batch (net/core/dev.c:12673) 
[ 119.425689][ T12] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 119.426080][ T12] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 119.426407][ T12] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 119.426722][ T12] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 119.427037][ T12] cleanup_net (net/core/net_namespace.c:684) 
[ 119.427356][ T12] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 119.427686][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 119.427996][ T12] process_one_work (kernel/workqueue.c:3238) 
[ 119.428332][ T12] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 119.428658][ T12] ? assign_work (kernel/workqueue.c:1200) 
[ 119.428967][ T12] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 119.429294][ T12] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 119.429606][ T12] kthread (kernel/kthread.c:464) 
[ 119.429854][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 119.430168][ T12] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 119.430495][ T12] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 119.430817][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 119.431129][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 119.431451][ T12] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 119.431778][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 119.432085][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  119.792956][   T12] ------------[ cut here ]------------
| [ 119.793292][ T12] WARNING: CPU: 2 PID: 12 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  119.793868][   T12] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  119.795061][   T12] Tainted: [W]=WARN
[  119.795297][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  119.795703][   T12] Workqueue: netns cleanup_net
[ 119.796024][ T12] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 119.796341][ T12] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  119.797436][   T12] RSP: 0018:ffffc900000c75b0 EFLAGS: 00010246
[  119.797847][   T12] RAX: 0000000000000000 RBX: ffff88801126a000 RCX: 0000000000000001
[  119.798293][   T12] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[  119.798768][   T12] RBP: ffffc900000c7698 R08: 0000000000000000 R09: 0000000000000000
[  119.799219][   T12] R10: ffffc900000c76c8 R11: ffffffffb1f8d1e0 R12: 1ffff92000018eba
[  119.799709][   T12] R13: 00000000000005dc R14: ffffc900000c76c8 R15: ffff88801126af48
[  119.800158][   T12] FS:  0000000000000000(0000) GS:ffff8880b9499000(0000) knlGS:0000000000000000
[  119.800700][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  119.801101][   T12] CR2: 00007fffb1281ea8 CR3: 000000000aafa001 CR4: 0000000000772ef0
[  119.801552][   T12] PKRU: 55555554
[  119.801814][   T12] Call Trace:
[  119.802046][   T12]  <TASK>
[ 119.802210][ T12] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 119.802599][ T12] ? br_del_if (net/bridge/br_if.c:742) 
[ 119.802862][ T12] ? br_device_event (net/bridge/br.c:141) 
[ 119.803169][ T12] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 119.803484][ T12] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 119.803816][ T12] ? cleanup_net (net/core/net_namespace.c:684) 
[ 119.804125][ T12] ? process_one_work (kernel/workqueue.c:3238) 
[ 119.804431][ T12] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 119.804751][ T12] ? kthread (kernel/kthread.c:464) 
[ 119.805003][ T12] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 119.805318][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 119.805650][ T12] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 119.805988][ T12] netif_set_mtu (net/core/dev.c:9652) 
[ 119.806298][ T12] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 119.806621][ T12] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 119.806885][ T12] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 119.807201][ T12] br_del_if (net/bridge/br_if.c:743) 
[ 119.807437][ T12] br_device_event (net/bridge/br.c:141) 
[ 119.807753][ T12] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 119.808093][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 119.808404][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 119.808802][ T12] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 119.809119][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 119.809494][ T12] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 119.809878][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 119.810275][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 119.810668][ T12] default_device_exit_batch (net/core/dev.c:12673) 
[ 119.810992][ T12] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 119.811374][ T12] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 119.811699][ T12] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 119.812020][ T12] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 119.812335][ T12] cleanup_net (net/core/net_namespace.c:684) 
[ 119.812667][ T12] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 119.812991][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 119.813300][ T12] process_one_work (kernel/workqueue.c:3238) 
[ 119.813618][ T12] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 119.813942][ T12] ? assign_work (kernel/workqueue.c:1200) 
[ 119.814263][ T12] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 119.814582][ T12] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 119.814899][ T12] kthread (kernel/kthread.c:464) 
[ 119.815160][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 119.815461][ T12] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 119.815776][ T12] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 119.816093][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 119.816398][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 119.816712][ T12] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 119.817016][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 119.817332][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  131.574067][ T1068] ------------[ cut here ]------------
| [ 131.574479][ T1068] WARNING: CPU: 0 PID: 1068 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  131.575500][ T1068] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  131.577357][ T1068] Tainted: [W]=WARN
[  131.577756][ T1068] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 131.578401][ T1068] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 131.578945][ T1068] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  131.580810][ T1068] RSP: 0018:ffffc90001df6ef0 EFLAGS: 00010246
[  131.581460][ T1068] RAX: 0000000000000000 RBX: ffff888009e82000 RCX: 0000000000000001
[  131.582245][ T1068] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[  131.583038][ T1068] RBP: ffffc90001df6fd8 R08: 0000000000000000 R09: 0000000000000000
[  131.583830][ T1068] R10: ffffc90001df7008 R11: ffffffffb1f8d1e0 R12: 1ffff920003bede2
[  131.584609][ T1068] R13: 00000000000005dc R14: ffffc90001df7008 R15: ffff888009e82f48
[  131.585393][ T1068] FS:  00007f2c9a05a800(0000) GS:ffff8880b9399000(0000) knlGS:0000000000000000
[  131.586296][ T1068] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  131.586963][ T1068] CR2: 00000000004e6888 CR3: 0000000011923006 CR4: 0000000000772ef0
[  131.587745][ T1068] PKRU: 55555554
[  131.588130][ T1068] Call Trace:
[  131.588512][ T1068]  <TASK>
[ 131.588794][ T1068] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 131.589332][ T1068] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 131.589870][ T1068] netif_set_mtu (net/core/dev.c:9652) 
[ 131.590390][ T1068] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 131.590952][ T1068] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 131.591340][ T1068] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 131.591872][ T1068] br_add_if (net/bridge/br_if.c:697) 
[ 131.592279][ T1068] do_set_master (net/core/rtnetlink.c:2948) 
[ 131.592808][ T1068] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 131.593337][ T1068] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 131.593863][ T1068] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 131.594516][ T1068] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 131.595040][ T1068] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 131.595547][ T1068] ? __kernel_text_address (kernel/extable.c:79) 
[ 131.596079][ T1068] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 131.596598][ T1068] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 131.597132][ T1068] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 131.597771][ T1068] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 131.598284][ T1068] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 131.598812][ T1068] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 131.599326][ T1068] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 131.599853][ T1068] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 131.600363][ T1068] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 131.600894][ T1068] ? __create_object (mm/kmemleak.c:771) 
[ 131.601405][ T1068] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 131.601924][ T1068] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 131.602440][ T1068] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 131.603103][ T1068] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 131.603628][ T1068] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 131.604170][ T1068] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 131.604693][ T1068] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 131.605226][ T1068] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 131.605748][ T1068] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 131.606256][ T1068] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 131.606784][ T1068] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 131.607352][ T1068] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 131.607884][ T1068] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 131.608402][ T1068] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 131.608935][ T1068] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 131.609457][ T1068] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 131.609984][ T1068] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 131.610519][ T1068] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 131.611042][ T1068] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 131.611560][ T1068] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 131.612092][ T1068] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 131.612618][ T1068] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 131.613153][ T1068] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 131.613689][ T1068] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 131.614205][ T1068] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 131.614754][ T1068] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 131.615271][ T1068] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 131.615791][ T1068] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 131.616446][ T1068] ___sys_sendmsg (net/socket.c:2670) 
[ 131.616972][ T1068] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 131.617478][ T1068] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 131.618124][ T1068] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 131.618660][ T1068] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 131.619180][ T1068] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 131.619712][ T1068] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 131.620222][ T1068] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 131.620759][ T1068] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 131.621286][ T1068] __sys_sendmsg (net/socket.c:2700) 
[ 131.621801][ T1068] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 131.622434][ T1068] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 131.622992][ T1068] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 131.623508][ T1068] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 131.624034][ T1068] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  131.624689][ T1068] RIP: 0033:0x7f2c9a2271e7
[ 131.625219][ T1068] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  131.627050][ T1068] RSP: 002b:00007fffd9031668 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  131.627833][ T1068] RAX: ffffffffffffffda RBX: 00007fffd9031da0 RCX: 00007f2c9a2271e7
[  131.628608][ T1068] RDX: 0000000000000000 RSI: 00007fffd90316d0 RDI: 0000000000000005
[  131.629550][ T1068] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  131.630308][ T1068] R10: 000000002d222910 R11: 0000000000000246 R12: 0000000000000005
[  131.631332][ T1068] R13: 00000000686e4756 R14: 0000000000499600 R15: 0000000000000000
| [  132.046841][ T1071] ------------[ cut here ]------------
| [ 132.047152][ T1071] WARNING: CPU: 0 PID: 1071 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) 
| [  132.047776][ T1071] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  132.049517][ T1071] Tainted: [W]=WARN
[  132.049932][ T1071] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 132.050316][ T1071] 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) 
[ 132.050785][ T1071] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  132.052034][ T1071] RSP: 0018:ffffc90001ec7080 EFLAGS: 00010246
[  132.052425][ T1071] RAX: 0000000000000000 RBX: ffff888009e82000 RCX: 0000000000000001
[  132.052966][ T1071] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[  132.053440][ T1071] RBP: ffffc90001ec7168 R08: 0000000000000000 R09: 0000000000000000
[  132.053929][ T1071] R10: ffffc90001ec7198 R11: ffffffffb28ceab8 R12: 1ffff920003d8e14
[  132.054419][ T1071] R13: 00000000000005dc R14: ffffc90001ec7198 R15: ffff888009e82f48
[  132.054912][ T1071] FS:  00007fbb568e0800(0000) GS:ffff8880b9399000(0000) knlGS:0000000000000000
[  132.055479][ T1071] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  132.055888][ T1071] CR2: 00007fbb569e0130 CR3: 000000001109b005 CR4: 0000000000772ef0
[  132.056361][ T1071] PKRU: 55555554
[  132.056592][ T1071] Call Trace:
[  132.056853][ T1071]  <TASK>
[ 132.057018][ T1071] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 132.057329][ T1071] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 132.057659][ T1071] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 132.058044][ T1071] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 132.058351][ T1071] netif_set_mtu (net/core/dev.c:9652) 
[ 132.058671][ T1071] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 132.058991][ T1071] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 132.059375][ T1071] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 132.059609][ T1071] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 132.059940][ T1071] br_add_if (net/bridge/br_if.c:697) 
[ 132.060188][ T1071] do_set_master (net/core/rtnetlink.c:2948) 
[ 132.060490][ T1071] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 132.060819][ T1071] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 132.061142][ T1071] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 132.061443][ T1071] ? __dev_get_by_name (net/core/dev.c:865) 
[ 132.061767][ T1071] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 132.062080][ T1071] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 132.062390][ T1071] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 132.062713][ T1071] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 132.063034][ T1071] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 132.063355][ T1071] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 132.063679][ T1071] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 132.064013][ T1071] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 132.064320][ T1071] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 132.064625][ T1071] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 132.064961][ T1071] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 132.065277][ T1071] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 132.065592][ T1071] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 132.065922][ T1071] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 132.066231][ T1071] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 132.066535][ T1071] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 132.066860][ T1071] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 132.067163][ T1071] ? 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) 
[ 132.067470][ T1071] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 132.067786][ T1071] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 132.068094][ T1071] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 132.068401][ T1071] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 132.068724][ T1071] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 132.069037][ T1071] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 132.069351][ T1071] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 132.069672][ T1071] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 132.069978][ T1071] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 132.070378][ T1071] ___sys_sendmsg (net/socket.c:2670) 
[ 132.070689][ T1071] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 132.070994][ T1071] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 132.071300][ T1071] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 132.071612][ T1071] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 132.071927][ T1071] ? __handle_mm_fault (mm/memory.c:6212) 
[ 132.072239][ T1071] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 132.072548][ T1071] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 132.072892][ T1071] __sys_sendmsg (net/socket.c:2700) 
[ 132.073204][ T1071] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 132.073509][ T1071] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 132.073834][ T1071] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 132.074148][ T1071] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 132.074471][ T1071] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 132.074786][ T1071] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  132.075162][ T1071] RIP: 0033:0x7fbb56aad1e7
[ 132.075476][ T1071] 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)
[  132.076580][ T1071] RSP: 002b:00007fff118f9488 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  132.077071][ T1071] RAX: ffffffffffffffda RBX: 00007fff118f9bc0 RCX: 00007fbb56aad1e7
[  132.077536][ T1071] RDX: 0000000000000000 RSI: 00007fff118f94f0 RDI: 0000000000000005
[  132.078011][ T1071] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  132.078466][ T1071] R10: 00007fbb56b3bac0 R11: 0000000000000246 R12: 00007fff118f9bf8
[  132.078953][ T1071] R13: 00000000686e4756 R14: 0000000000499600 R15: 00007fff118f95e0
| [  134.122778][ T1088] ------------[ cut here ]------------
| [ 134.123112][ T1088] WARNING: CPU: 3 PID: 1088 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) 
| [  134.123707][ T1088] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  134.124831][ T1088] Tainted: [W]=WARN
[  134.125061][ T1088] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 134.125434][ T1088] 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) 
[ 134.125748][ T1088] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  134.126820][ T1088] RSP: 0018:ffffc90001f66ef0 EFLAGS: 00010246
[  134.127200][ T1088] RAX: 0000000000000000 RBX: ffff8880117a2000 RCX: 0000000000000001
[  134.127653][ T1088] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[  134.128100][ T1088] RBP: ffffc90001f66fd8 R08: 0000000000000000 R09: 0000000000000000
[  134.128542][ T1088] R10: ffffc90001f67008 R11: ffffffffb1f8d1e0 R12: 1ffff920003ecde2
[  134.128997][ T1088] R13: 00000000000005dc R14: ffffc90001f67008 R15: ffff8880117a2f48
[  134.129444][ T1088] FS:  00007f4020508800(0000) GS:ffff8880b9519000(0000) knlGS:0000000000000000
[  134.129975][ T1088] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  134.130351][ T1088] CR2: 00000000004e6888 CR3: 0000000005911004 CR4: 0000000000772ef0
[  134.130808][ T1088] PKRU: 55555554
[  134.131033][ T1088] Call Trace:
[  134.131256][ T1088]  <TASK>
[ 134.131410][ T1088] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 134.131715][ T1088] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 134.132027][ T1088] netif_set_mtu (net/core/dev.c:9652) 
[ 134.132328][ T1088] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 134.132664][ T1088] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 134.132892][ T1088] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 134.133195][ T1088] br_add_if (net/bridge/br_if.c:697) 
[ 134.133430][ T1088] do_set_master (net/core/rtnetlink.c:2948) 
[ 134.133754][ T1088] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 134.134056][ T1088] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 134.134365][ T1088] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 134.134748][ T1088] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 134.135048][ T1088] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 134.135348][ T1088] ? __kernel_text_address (kernel/extable.c:79) 
[ 134.135657][ T1088] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 134.135958][ T1088] ? __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) 
[ 134.136256][ T1088] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 134.136649][ T1088] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 134.136951][ T1088] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 134.137244][ T1088] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 134.137538][ T1088] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 134.137848][ T1088] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 134.138148][ T1088] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 134.138443][ T1088] ? __create_object (mm/kmemleak.c:771) 
[ 134.138749][ T1088] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 134.139105][ T1088] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 134.139414][ T1088] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 134.139806][ T1088] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 134.140113][ T1088] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 134.140415][ T1088] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 134.140728][ T1088] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 134.141032][ T1088] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 134.141338][ T1088] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 134.141642][ T1088] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 134.141941][ T1088] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 134.142239][ T1088] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 134.142548][ T1088] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 134.142859][ T1088] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 134.143162][ T1088] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 134.143461][ T1088] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 134.143776][ T1088] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 134.144086][ T1088] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 134.144383][ T1088] ? 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) 
[ 134.144910][ T1088] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 134.145213][ T1088] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 134.145508][ T1088] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 134.145815][ T1088] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 134.146338][ T1088] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 134.146643][ T1088] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 134.146949][ T1088] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 134.147246][ T1088] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 134.147763][ T1088] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 134.148143][ T1088] ___sys_sendmsg (net/socket.c:2670) 
[ 134.148438][ T1088] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 134.148749][ T1088] ? __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) 
[ 134.149334][ T1088] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 134.149645][ T1088] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 134.149948][ T1088] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 134.150250][ T1088] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 134.150766][ T1088] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 134.151063][ T1088] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 134.151371][ T1088] __sys_sendmsg (net/socket.c:2700) 
[ 134.151886][ T1088] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 134.152256][ T1088] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 134.152578][ T1088] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 134.152885][ T1088] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 134.153398][ T1088] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  134.153776][ T1088] RIP: 0033:0x7f40206d51e7
[ 134.154090][ T1088] 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)
[  134.155394][ T1088] RSP: 002b:00007ffdc4e994b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  134.155855][ T1088] RAX: ffffffffffffffda RBX: 00007ffdc4e99bf0 RCX: 00007f40206d51e7
[  134.156528][ T1088] RDX: 0000000000000000 RSI: 00007ffdc4e99520 RDI: 0000000000000005
[  134.156988][ T1088] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  134.157435][ T1088] R10: 000000000c55c910 R11: 0000000000000246 R12: 0000000000000005
[  134.158106][ T1088] R13: 00000000686e4758 R14: 0000000000499600 R15: 0000000000000000
| [  134.566939][ T1091] ------------[ cut here ]------------
| [ 134.567252][ T1091] WARNING: CPU: 1 PID: 1091 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) 
| [  134.567888][ T1091] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  134.568991][ T1091] Tainted: [W]=WARN
[  134.569225][ T1091] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 134.569615][ T1091] 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) 
[ 134.569945][ T1091] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  134.571056][ T1091] RSP: 0018:ffffc90001f87080 EFLAGS: 00010246
[  134.571446][ T1091] RAX: 0000000000000000 RBX: ffff8880117a2000 RCX: 0000000000000001
[  134.571923][ T1091] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[  134.572386][ T1091] RBP: ffffc90001f87168 R08: 0000000000000000 R09: 0000000000000000
[  134.572878][ T1091] R10: ffffc90001f87198 R11: ffffffffb1f8d1e0 R12: 1ffff920003f0e14
[  134.573340][ T1091] R13: 00000000000005dc R14: ffffc90001f87198 R15: ffff8880117a2f48
[  134.573806][ T1091] FS:  00007fd460158800(0000) GS:ffff8880b9419000(0000) knlGS:0000000000000000
[  134.574351][ T1091] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  134.574742][ T1091] CR2: 00005579ae433dec CR3: 0000000005911001 CR4: 0000000000772ef0
[  134.575208][ T1091] PKRU: 55555554
[  134.575436][ T1091] Call Trace:
[  134.575668][ T1091]  <TASK>
[ 134.575828][ T1091] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 134.576141][ T1091] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 134.576467][ T1091] netif_set_mtu (net/core/dev.c:9652) 
[ 134.576928][ T1091] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 134.577254][ T1091] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 134.577487][ T1091] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 134.577941][ T1091] br_add_if (net/bridge/br_if.c:697) 
[ 134.578185][ T1091] do_set_master (net/core/rtnetlink.c:2948) 
[ 134.578491][ T1091] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 134.578949][ T1091] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 134.579263][ T1091] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 134.579564][ T1091] ? __dev_get_by_name (net/core/dev.c:865) 
[ 134.579901][ T1091] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 134.580217][ T1091] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 134.580526][ T1091] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 134.580842][ T1091] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 134.581160][ T1091] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 134.581476][ T1091] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 134.581797][ T1091] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 134.582116][ T1091] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 134.582417][ T1091] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 134.582743][ T1091] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 134.583053][ T1091] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 134.583358][ T1091] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 134.583677][ T1091] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 134.583987][ T1091] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 134.584299][ T1091] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 134.584602][ T1091] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 134.584925][ T1091] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 134.585233][ T1091] ? 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) 
[ 134.585539][ T1091] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 134.585856][ T1091] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 134.586160][ T1091] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 134.586469][ T1091] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 134.586786][ T1091] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 134.587099][ T1091] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 134.587414][ T1091] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 134.587730][ T1091] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 134.588035][ T1091] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 134.588427][ T1091] ___sys_sendmsg (net/socket.c:2670) 
[ 134.588740][ T1091] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 134.589046][ T1091] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 134.589356][ T1091] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 134.589665][ T1091] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 134.589973][ T1091] ? __handle_mm_fault (mm/memory.c:6212) 
[ 134.590284][ T1091] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 134.590582][ T1091] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 134.590911][ T1091] __sys_sendmsg (net/socket.c:2700) 
[ 134.591217][ T1091] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 134.591523][ T1091] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 134.591846][ T1091] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 134.592161][ T1091] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 134.592470][ T1091] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 134.592792][ T1091] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  134.593174][ T1091] RIP: 0033:0x7fd4603251e7
[ 134.593519][ T1091] 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)
[  134.594622][ T1091] RSP: 002b:00007ffff2b5fc58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  134.595094][ T1091] RAX: ffffffffffffffda RBX: 00007ffff2b60390 RCX: 00007fd4603251e7
[  134.595553][ T1091] RDX: 0000000000000000 RSI: 00007ffff2b5fcc0 RDI: 0000000000000005
[  134.596020][ T1091] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  134.596485][ T1091] R10: 00007fd4603b3ac0 R11: 0000000000000246 R12: 00007ffff2b603c8
[  134.596951][ T1091] R13: 00000000686e4759 R14: 0000000000499600 R15: 00007ffff2b5fdb0
| [  146.392291][   T12] ------------[ cut here ]------------
| [ 146.392659][ T12] WARNING: CPU: 0 PID: 12 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  146.393206][   T12] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  146.394397][   T12] Tainted: [W]=WARN
[  146.394646][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  146.395041][   T12] Workqueue: netns cleanup_net
[ 146.395367][ T12] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 146.395710][ T12] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  146.396835][   T12] RSP: 0018:ffffc900000c75b0 EFLAGS: 00010246
[  146.397228][   T12] RAX: 0000000000000000 RBX: ffff888009e82000 RCX: 0000000000000001
[  146.397703][   T12] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[  146.398175][   T12] RBP: ffffc900000c7698 R08: 0000000000000000 R09: 0000000000000000
[  146.398649][   T12] R10: ffffc900000c76c8 R11: ffffffffb1f8d1e0 R12: 1ffff92000018eba
[  146.399114][   T12] R13: 00000000000005dc R14: ffffc900000c76c8 R15: ffff888009e82f48
[  146.399575][   T12] FS:  0000000000000000(0000) GS:ffff8880b9399000(0000) knlGS:0000000000000000
[  146.400328][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  146.401023][   T12] CR2: 00007f1c57f22f88 CR3: 000000002a94a005 CR4: 0000000000772ef0
[  146.401491][   T12] PKRU: 55555554
[  146.401858][   T12] Call Trace:
[  146.402093][   T12]  <TASK>
[ 146.402254][ T12] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 146.402811][ T12] ? br_del_if (net/bridge/br_if.c:742) 
[ 146.403055][ T12] ? br_device_event (net/bridge/br.c:141) 
[ 146.403364][ T12] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 146.403860][ T12] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 146.404173][ T12] ? cleanup_net (net/core/net_namespace.c:684) 
[ 146.404485][ T12] ? process_one_work (kernel/workqueue.c:3238) 
[ 146.404903][ T12] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 146.405215][ T12] ? kthread (kernel/kthread.c:464) 
[ 146.405449][ T12] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 146.405771][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 146.406089][ T12] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 146.406411][ T12] netif_set_mtu (net/core/dev.c:9652) 
[ 146.406737][ T12] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 146.407070][ T12] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 146.407312][ T12] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 146.407631][ T12] br_del_if (net/bridge/br_if.c:743) 
[ 146.407878][ T12] br_device_event (net/bridge/br.c:141) 
[ 146.408196][ T12] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 146.408515][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 146.408848][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 146.409255][ T12] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 146.409572][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 146.409966][ T12] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 146.410353][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 146.410749][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 146.411147][ T12] default_device_exit_batch (net/core/dev.c:12673) 
[ 146.411462][ T12] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 146.411868][ T12] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 146.412192][ T12] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 146.412504][ T12] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 146.412852][ T12] cleanup_net (net/core/net_namespace.c:684) 
[ 146.413169][ T12] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 146.413481][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 146.413817][ T12] process_one_work (kernel/workqueue.c:3238) 
[ 146.414152][ T12] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 146.414471][ T12] ? assign_work (kernel/workqueue.c:1200) 
[ 146.414793][ T12] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 146.415112][ T12] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 146.415421][ T12] kthread (kernel/kthread.c:464) 
[ 146.415666][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 146.415981][ T12] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 146.416293][ T12] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 146.416604][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 146.416922][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 146.417236][ T12] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 146.417547][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 146.417866][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  146.938020][   T12] ------------[ cut here ]------------
| [ 146.938372][ T12] WARNING: CPU: 2 PID: 12 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  146.938943][   T12] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  146.940147][   T12] Tainted: [W]=WARN
[  146.940391][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  146.940994][   T12] Workqueue: netns cleanup_net
[ 146.941341][ T12] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 146.941681][ T12] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  146.942801][   T12] RSP: 0018:ffffc900000c75b0 EFLAGS: 00010246
[  146.943207][   T12] RAX: 0000000000000000 RBX: ffff8880117a2000 RCX: 0000000000000001
[  146.943699][   T12] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[  146.944167][   T12] RBP: ffffc900000c7698 R08: 0000000000000000 R09: 0000000000000000
[  146.944623][   T12] R10: ffffc900000c76c8 R11: ffffffffb1f8d1e0 R12: 1ffff92000018eba
[  146.945108][   T12] R13: 00000000000005dc R14: ffffc900000c76c8 R15: ffff8880117a2f48
[  146.945571][   T12] FS:  0000000000000000(0000) GS:ffff8880b9499000(0000) knlGS:0000000000000000
[  146.946113][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  146.946509][   T12] CR2: 0000000000406141 CR3: 000000000950c006 CR4: 0000000000772ef0
[  146.947001][   T12] PKRU: 55555554
[  146.947246][   T12] Call Trace:
[  146.947478][   T12]  <TASK>
[ 146.947651][ T12] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 146.948054][ T12] ? br_del_if (net/bridge/br_if.c:742) 
[ 146.948291][ T12] ? br_device_event (net/bridge/br.c:141) 
[ 146.948604][ T12] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 146.948940][ T12] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 146.949267][ T12] ? cleanup_net (net/core/net_namespace.c:684) 
[ 146.949570][ T12] ? process_one_work (kernel/workqueue.c:3238) 
[ 146.949909][ T12] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 146.950215][ T12] ? kthread (kernel/kthread.c:464) 
[ 146.950450][ T12] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 146.950767][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 146.951083][ T12] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 146.951401][ T12] netif_set_mtu (net/core/dev.c:9652) 
[ 146.951740][ T12] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 146.952073][ T12] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 146.952321][ T12] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 146.952658][ T12] br_del_if (net/bridge/br_if.c:743) 
[ 146.952897][ T12] br_device_event (net/bridge/br.c:141) 
[ 146.953212][ T12] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 146.953535][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 146.953873][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 146.954264][ T12] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 146.954580][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 146.954971][ T12] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 146.955359][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 146.955749][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 146.956144][ T12] default_device_exit_batch (net/core/dev.c:12673) 
[ 146.956451][ T12] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 146.956864][ T12] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 146.957190][ T12] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 146.957496][ T12] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 146.957824][ T12] cleanup_net (net/core/net_namespace.c:684) 
[ 146.958153][ T12] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 146.958462][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 146.958779][ T12] process_one_work (kernel/workqueue.c:3238) 
[ 146.959100][ T12] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 146.959414][ T12] ? assign_work (kernel/workqueue.c:1200) 
[ 146.959730][ T12] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 146.960049][ T12] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 146.960358][ T12] kthread (kernel/kthread.c:464) 
[ 146.960592][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 146.960919][ T12] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 146.961223][ T12] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 146.961533][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 146.961856][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 146.962182][ T12] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 146.962503][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 146.962843][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  158.726631][ T1272] ------------[ cut here ]------------
| [ 158.727073][ T1272] WARNING: CPU: 3 PID: 1272 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) 
| [  158.727684][ T1272] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  158.728769][ T1272] Tainted: [W]=WARN
[  158.728997][ T1272] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 158.729376][ T1272] 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) 
[ 158.729715][ T1272] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  158.730802][ T1272] RSP: 0018:ffffc90002566ef0 EFLAGS: 00010246
[  158.731178][ T1272] RAX: 0000000000000000 RBX: ffff888009e02000 RCX: 0000000000000001
[  158.731620][ T1272] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[  158.732076][ T1272] RBP: ffffc90002566fd8 R08: 0000000000000000 R09: 0000000000000000
[  158.732525][ T1272] R10: ffffc90002567008 R11: ffffffffb1f8d1e0 R12: 1ffff920004acde2
[  158.732989][ T1272] R13: 00000000000005dc R14: ffffc90002567008 R15: ffff888009e02f48
[  158.733437][ T1272] FS:  00007f9c106c8800(0000) GS:ffff8880b9519000(0000) knlGS:0000000000000000
[  158.733986][ T1272] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  158.734365][ T1272] CR2: 00000000004e6888 CR3: 000000000c384002 CR4: 0000000000772ef0
[  158.734837][ T1272] PKRU: 55555554
[  158.735063][ T1272] Call Trace:
[  158.735293][ T1272]  <TASK>
[ 158.735448][ T1272] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 158.735858][ T1272] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 158.736170][ T1272] netif_set_mtu (net/core/dev.c:9652) 
[ 158.736470][ T1272] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 158.736815][ T1272] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 158.737055][ T1272] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 158.737368][ T1272] br_add_if (net/bridge/br_if.c:697) 
[ 158.737606][ T1272] do_set_master (net/core/rtnetlink.c:2948) 
[ 158.737923][ T1272] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 158.738230][ T1272] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 158.738557][ T1272] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 158.738964][ T1272] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 158.739274][ T1272] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 158.739574][ T1272] ? __kernel_text_address (kernel/extable.c:79) 
[ 158.739887][ T1272] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 158.740191][ T1272] ? __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) 
[ 158.740490][ T1272] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 158.740870][ T1272] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 158.741171][ T1272] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 158.741488][ T1272] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 158.741795][ T1272] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 158.742098][ T1272] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 158.742400][ T1272] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 158.742731][ T1272] ? __create_object (mm/kmemleak.c:771) 
[ 158.743035][ T1272] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 158.743335][ T1272] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 158.743651][ T1272] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 158.744024][ T1272] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 158.744326][ T1272] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 158.744642][ T1272] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 158.744942][ T1272] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 158.745243][ T1272] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 158.745547][ T1272] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 158.745849][ T1272] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 158.746174][ T1272] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 158.746472][ T1272] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 158.746794][ T1272] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 158.747102][ T1272] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 158.747405][ T1272] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 158.747712][ T1272] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 158.748012][ T1272] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 158.748318][ T1272] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 158.748610][ T1272] ? 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) 
[ 158.748913][ T1272] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 158.749215][ T1272] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 158.749512][ T1272] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 158.749817][ T1272] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 158.750117][ T1272] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 158.750412][ T1272] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 158.750734][ T1272] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 158.751036][ T1272] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 158.751330][ T1272] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 158.751719][ T1272] ___sys_sendmsg (net/socket.c:2670) 
[ 158.752015][ T1272] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 158.752311][ T1272] ? __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) 
[ 158.752712][ T1272] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 158.753012][ T1272] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 158.753311][ T1272] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 158.753614][ T1272] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 158.753917][ T1272] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 158.754210][ T1272] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 158.754520][ T1272] __sys_sendmsg (net/socket.c:2700) 
[ 158.754834][ T1272] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 158.755209][ T1272] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 158.755516][ T1272] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 158.755819][ T1272] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 158.756118][ T1272] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  158.756483][ T1272] RIP: 0033:0x7f9c108951e7
[ 158.756810][ T1272] 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)
[  158.757879][ T1272] RSP: 002b:00007ffdecc87138 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  158.758328][ T1272] RAX: ffffffffffffffda RBX: 00007ffdecc87870 RCX: 00007f9c108951e7
[  158.758798][ T1272] RDX: 0000000000000000 RSI: 00007ffdecc871a0 RDI: 0000000000000005
[  158.759243][ T1272] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  158.759698][ T1272] R10: 0000000007dba910 R11: 0000000000000246 R12: 0000000000000005
[  158.760146][ T1272] R13: 00000000686e4771 R14: 0000000000499600 R15: 0000000000000000
| [  159.138677][ T1275] ------------[ cut here ]------------
| [ 159.139068][ T1275] WARNING: CPU: 2 PID: 1275 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) 
| [  159.139732][ T1275] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  159.140894][ T1275] Tainted: [W]=WARN
[  159.141169][ T1275] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 159.141569][ T1275] 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) 
[ 159.141914][ T1275] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  159.143108][ T1275] RSP: 0018:ffffc90002587080 EFLAGS: 00010246
[  159.143515][ T1275] RAX: 0000000000000000 RBX: ffff888009e02000 RCX: 0000000000000001
[  159.144007][ T1275] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[  159.144509][ T1275] RBP: ffffc90002587168 R08: 0000000000000000 R09: 0000000000000000
[  159.145001][ T1275] R10: ffffc90002587198 R11: ffffffffb1f8d1e0 R12: 1ffff920004b0e14
[  159.145479][ T1275] R13: 00000000000005dc R14: ffffc90002587198 R15: ffff888009e02f48
[  159.145986][ T1275] FS:  00007ff9aabbd800(0000) GS:ffff8880b9499000(0000) knlGS:0000000000000000
[  159.146546][ T1275] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  159.146978][ T1275] CR2: 000000000043d940 CR3: 00000000115d0005 CR4: 0000000000772ef0
[  159.147465][ T1275] PKRU: 55555554
[  159.147721][ T1275] Call Trace:
[  159.147968][ T1275]  <TASK>
[ 159.148141][ T1275] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 159.148462][ T1275] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 159.148823][ T1275] netif_set_mtu (net/core/dev.c:9652) 
[ 159.149176][ T1275] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 159.149509][ T1275] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 159.149777][ T1275] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 159.150112][ T1275] br_add_if (net/bridge/br_if.c:697) 
[ 159.150364][ T1275] do_set_master (net/core/rtnetlink.c:2948) 
[ 159.150692][ T1275] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 159.151016][ T1275] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 159.151347][ T1275] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 159.151673][ T1275] ? __dev_get_by_name (net/core/dev.c:865) 
[ 159.151996][ T1275] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 159.152314][ T1275] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 159.152666][ T1275] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 159.152982][ T1275] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 159.153309][ T1275] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 159.153660][ T1275] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 159.153995][ T1275] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 159.154325][ T1275] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 159.154650][ T1275] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 159.154971][ T1275] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 159.155289][ T1275] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 159.155611][ T1275] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 159.155943][ T1275] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 159.156271][ T1275] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 159.156598][ T1275] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 159.156928][ T1275] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 159.157261][ T1275] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 159.157580][ T1275] ? 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) 
[ 159.157919][ T1275] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 159.158254][ T1275] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 159.158574][ T1275] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 159.158911][ T1275] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 159.159266][ T1275] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 159.159586][ T1275] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 159.159950][ T1275] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 159.160281][ T1275] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 159.160604][ T1275] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 159.161023][ T1275] ___sys_sendmsg (net/socket.c:2670) 
[ 159.161363][ T1275] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 159.161710][ T1275] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 159.162049][ T1275] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 159.162367][ T1275] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 159.162713][ T1275] ? __handle_mm_fault (mm/memory.c:6212) 
[ 159.163045][ T1275] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 159.163366][ T1275] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 159.163717][ T1275] __sys_sendmsg (net/socket.c:2700) 
[ 159.164034][ T1275] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 159.164352][ T1275] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 159.164688][ T1275] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 159.165017][ T1275] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 159.165339][ T1275] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 159.165693][ T1275] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  159.166090][ T1275] RIP: 0033:0x7ff9aad8a1e7
[ 159.166423][ T1275] 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)
[  159.167530][ T1275] RSP: 002b:00007ffdb2e43d48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  159.168024][ T1275] RAX: ffffffffffffffda RBX: 00007ffdb2e44480 RCX: 00007ff9aad8a1e7
[  159.168493][ T1275] RDX: 0000000000000000 RSI: 00007ffdb2e43db0 RDI: 0000000000000005
[  159.168970][ T1275] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  159.169434][ T1275] R10: 00007ff9aae18ac0 R11: 0000000000000246 R12: 00007ffdb2e444b8
[  159.169928][ T1275] R13: 00000000686e4771 R14: 0000000000499600 R15: 00007ffdb2e43ea0
| [  161.257208][ T1292] ------------[ cut here ]------------
| [ 161.257537][ T1292] WARNING: CPU: 0 PID: 1292 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) 
| [  161.258143][ T1292] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  161.259267][ T1292] Tainted: [W]=WARN
[  161.259494][ T1292] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 161.259876][ T1292] 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) 
[ 161.260190][ T1292] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  161.261294][ T1292] RSP: 0018:ffffc90002666ef0 EFLAGS: 00010246
[  161.261682][ T1292] RAX: 0000000000000000 RBX: ffff88800f6ba000 RCX: 0000000000000001
[  161.262137][ T1292] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[  161.262596][ T1292] RBP: ffffc90002666fd8 R08: 0000000000000000 R09: 0000000000000000
[  161.263058][ T1292] R10: ffffc90002667008 R11: ffffffffb1f8d1e0 R12: 1ffff920004ccde2
[  161.263506][ T1292] R13: 00000000000005dc R14: ffffc90002667008 R15: ffff88800f6baf48
[  161.263977][ T1292] FS:  00007fd76f106800(0000) GS:ffff8880b9399000(0000) knlGS:0000000000000000
[  161.264504][ T1292] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  161.264889][ T1292] CR2: 00000000004e6888 CR3: 00000000051ff001 CR4: 0000000000772ef0
[  161.265429][ T1292] PKRU: 55555554
[  161.265663][ T1292] Call Trace:
[  161.265885][ T1292]  <TASK>
[ 161.266038][ T1292] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 161.266369][ T1292] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 161.266692][ T1292] netif_set_mtu (net/core/dev.c:9652) 
[ 161.266988][ T1292] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 161.267303][ T1292] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 161.267526][ T1292] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 161.267836][ T1292] br_add_if (net/bridge/br_if.c:697) 
[ 161.268071][ T1292] do_set_master (net/core/rtnetlink.c:2948) 
[ 161.268376][ T1292] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 161.268710][ T1292] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 161.269013][ T1292] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 161.269408][ T1292] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 161.269715][ T1292] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 161.270009][ T1292] ? __kernel_text_address (kernel/extable.c:79) 
[ 161.270314][ T1292] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 161.270617][ T1292] ? __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) 
[ 161.270926][ T1292] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 161.271294][ T1292] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 161.271590][ T1292] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 161.271892][ T1292] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 161.272195][ T1292] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 161.272494][ T1292] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 161.272843][ T1292] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 161.273136][ T1292] ? __create_object (mm/kmemleak.c:771) 
[ 161.273433][ T1292] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 161.273741][ T1292] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 161.274040][ T1292] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 161.274411][ T1292] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 161.274722][ T1292] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 161.275022][ T1292] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 161.275321][ T1292] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 161.275622][ T1292] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 161.275927][ T1292] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 161.276223][ T1292] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 161.276537][ T1292] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 161.276841][ T1292] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 161.277138][ T1292] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 161.277439][ T1292] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 161.277773][ T1292] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 161.278070][ T1292] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 161.278375][ T1292] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 161.278689][ T1292] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 161.278983][ T1292] ? 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) 
[ 161.279304][ T1292] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 161.279603][ T1292] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 161.279920][ T1292] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 161.280223][ T1292] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 161.280526][ T1292] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 161.280834][ T1292] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 161.281135][ T1292] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 161.281433][ T1292] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 161.281739][ T1292] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 161.282127][ T1292] ___sys_sendmsg (net/socket.c:2670) 
[ 161.282420][ T1292] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 161.282767][ T1292] ? __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) 
[ 161.283137][ T1292] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 161.283436][ T1292] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 161.283748][ T1292] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 161.284052][ T1292] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 161.284359][ T1292] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 161.284664][ T1292] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 161.284967][ T1292] __sys_sendmsg (net/socket.c:2700) 
[ 161.285283][ T1292] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 161.285664][ T1292] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 161.285971][ T1292] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 161.286267][ T1292] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 161.286580][ T1292] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  161.286953][ T1292] RIP: 0033:0x7fd76f2d31e7
[ 161.287260][ T1292] 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)
[  161.288338][ T1292] RSP: 002b:00007ffc8e1713c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  161.288829][ T1292] RAX: ffffffffffffffda RBX: 00007ffc8e171b00 RCX: 00007fd76f2d31e7
[  161.289271][ T1292] RDX: 0000000000000000 RSI: 00007ffc8e171430 RDI: 0000000000000005
[  161.289727][ T1292] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  161.290395][ T1292] R10: 0000000027168910 R11: 0000000000000246 R12: 0000000000000005
[  161.290851][ T1292] R13: 00000000686e4773 R14: 0000000000499600 R15: 0000000000000000
| [  161.671653][ T1295] ------------[ cut here ]------------
| [ 161.671959][ T1295] WARNING: CPU: 3 PID: 1295 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) 
| [  161.672561][ T1295] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  161.673701][ T1295] Tainted: [W]=WARN
[  161.673934][ T1295] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 161.674316][ T1295] 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) 
[ 161.674628][ T1295] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  161.675744][ T1295] RSP: 0018:ffffc90002687080 EFLAGS: 00010246
[  161.676131][ T1295] RAX: 0000000000000000 RBX: ffff88800f6ba000 RCX: 0000000000000001
[  161.676584][ T1295] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[  161.677065][ T1295] RBP: ffffc90002687168 R08: 0000000000000000 R09: 0000000000000000
[  161.677525][ T1295] R10: ffffc90002687198 R11: ffffffffb28ceab8 R12: 1ffff920004d0e14
[  161.677998][ T1295] R13: 00000000000005dc R14: ffffc90002687198 R15: ffff88800f6baf48
[  161.678459][ T1295] FS:  00007f66eb283800(0000) GS:ffff8880b9519000(0000) knlGS:0000000000000000
[  161.679014][ T1295] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  161.679402][ T1295] CR2: 000000000043d940 CR3: 000000001027d003 CR4: 0000000000772ef0
[  161.680024][ T1295] PKRU: 55555554
[  161.680255][ T1295] Call Trace:
[  161.680483][ T1295]  <TASK>
[ 161.680788][ T1295] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 161.681102][ T1295] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 161.681408][ T1295] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 161.681887][ T1295] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 161.682196][ T1295] netif_set_mtu (net/core/dev.c:9652) 
[ 161.682506][ T1295] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 161.682855][ T1295] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 161.683241][ T1295] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 161.683472][ T1295] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 161.683792][ T1295] br_add_if (net/bridge/br_if.c:697) 
[ 161.684033][ T1295] do_set_master (net/core/rtnetlink.c:2948) 
[ 161.684336][ T1295] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 161.684682][ T1295] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 161.684994][ T1295] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 161.685297][ T1295] ? __dev_get_by_name (net/core/dev.c:865) 
[ 161.685600][ T1295] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 161.685913][ T1295] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 161.686220][ T1295] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 161.686523][ T1295] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 161.686860][ T1295] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 161.687182][ T1295] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 161.687491][ T1295] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 161.687818][ T1295] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 161.688221][ T1295] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 161.688529][ T1295] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 161.688839][ T1295] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 161.689147][ T1295] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 161.689463][ T1295] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 161.689780][ T1295] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 161.690086][ T1295] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 161.690391][ T1295] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 161.690728][ T1295] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 161.691033][ T1295] ? 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) 
[ 161.691340][ T1295] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 161.691662][ T1295] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 161.691965][ T1295] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 161.692276][ T1295] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 161.692591][ T1295] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 161.692916][ T1295] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 161.693231][ T1295] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 161.693537][ T1295] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 161.693853][ T1295] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 161.694246][ T1295] ___sys_sendmsg (net/socket.c:2670) 
[ 161.694557][ T1295] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 161.694881][ T1295] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 161.695192][ T1295] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 161.695496][ T1295] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 161.695811][ T1295] ? __handle_mm_fault (mm/memory.c:6212) 
[ 161.696128][ T1295] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 161.696430][ T1295] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 161.696759][ T1295] __sys_sendmsg (net/socket.c:2700) 
[ 161.697066][ T1295] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 161.697370][ T1295] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 161.697688][ T1295] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 161.697997][ T1295] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 161.698309][ T1295] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 161.698616][ T1295] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  161.699011][ T1295] RIP: 0033:0x7f66eb4501e7
[ 161.699332][ T1295] 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)
[  161.700423][ T1295] RSP: 002b:00007ffd2e63d9e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  161.700888][ T1295] RAX: ffffffffffffffda RBX: 00007ffd2e63e120 RCX: 00007f66eb4501e7
[  161.701345][ T1295] RDX: 0000000000000000 RSI: 00007ffd2e63da50 RDI: 0000000000000005
[  161.701806][ T1295] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  161.702262][ T1295] R10: 00007f66eb4deac0 R11: 0000000000000246 R12: 00007ffd2e63e158
[  161.702751][ T1295] R13: 00000000686e4774 R14: 0000000000499600 R15: 00007ffd2e63db40
| [  178.592000][   T12] ------------[ cut here ]------------
| [ 178.592521][ T12] WARNING: CPU: 3 PID: 12 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  178.593755][   T12] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  178.595724][   T12] Tainted: [W]=WARN
[  178.595957][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  178.596323][   T12] Workqueue: netns cleanup_net
[ 178.596655][ T12] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 178.596966][ T12] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  178.598035][   T12] RSP: 0018:ffffc900000c75b0 EFLAGS: 00010246
[  178.598407][   T12] RAX: 0000000000000000 RBX: ffff888009e02000 RCX: 0000000000000001
[  178.598871][   T12] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[  178.599314][   T12] RBP: ffffc900000c7698 R08: 0000000000000000 R09: 0000000000000000
[  178.599774][   T12] R10: ffffc900000c76c8 R11: ffffffffb1f8d1e0 R12: 1ffff92000018eba
[  178.600212][   T12] R13: 00000000000005dc R14: ffffc900000c76c8 R15: ffff888009e02f48
[  178.600672][   T12] FS:  0000000000000000(0000) GS:ffff8880b9519000(0000) knlGS:0000000000000000
[  178.601199][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  178.601571][   T12] CR2: 00007fc056a54270 CR3: 000000002a94a003 CR4: 0000000000772ef0
[  178.602052][   T12] PKRU: 55555554
[  178.602427][   T12] Call Trace:
[  178.602836][   T12]  <TASK>
[ 178.602995][ T12] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 178.603367][ T12] ? br_del_if (net/bridge/br_if.c:742) 
[ 178.603718][ T12] ? br_device_event (net/bridge/br.c:141) 
[ 178.604160][ T12] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 178.604626][ T12] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 178.605152][ T12] ? cleanup_net (net/core/net_namespace.c:684) 
[ 178.605702][ T12] ? process_one_work (kernel/workqueue.c:3238) 
[ 178.606208][ T12] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 178.606759][ T12] ? kthread (kernel/kthread.c:464) 
[ 178.607160][ T12] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 178.607714][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 178.608260][ T12] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 178.608816][ T12] netif_set_mtu (net/core/dev.c:9652) 
[ 178.609331][ T12] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 178.609889][ T12] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 178.610293][ T12] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 178.610848][ T12] br_del_if (net/bridge/br_if.c:743) 
[ 178.611248][ T12] br_device_event (net/bridge/br.c:141) 
[ 178.611778][ T12] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 178.612318][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 178.612886][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 178.613527][ T12] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 178.614022][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 178.614675][ T12] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 178.615305][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 178.615944][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 178.616592][ T12] default_device_exit_batch (net/core/dev.c:12673) 
[ 178.617143][ T12] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 178.617838][ T12] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 178.618333][ T12] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 178.618746][ T12] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 178.619276][ T12] cleanup_net (net/core/net_namespace.c:684) 
[ 178.619828][ T12] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 178.620309][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 178.620689][ T12] process_one_work (kernel/workqueue.c:3238) 
[ 178.621155][ T12] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 178.621707][ T12] ? assign_work (kernel/workqueue.c:1200) 
[ 178.622230][ T12] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 178.622804][ T12] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 178.623346][ T12] kthread (kernel/kthread.c:464) 
[ 178.623765][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 178.624283][ T12] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 178.624741][ T12] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 178.625262][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 178.626513][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 178.627046][ T12] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 178.627574][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 178.628135][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  179.146499][   T12] ------------[ cut here ]------------
| [ 179.146944][ T12] WARNING: CPU: 1 PID: 12 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  179.147477][   T12] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  179.148694][   T12] Tainted: [W]=WARN
[  179.148918][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  179.149290][   T12] Workqueue: netns cleanup_net
[ 179.149617][ T12] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 179.149926][ T12] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  179.150983][   T12] RSP: 0018:ffffc900000c75b0 EFLAGS: 00010246
[  179.151363][   T12] RAX: 0000000000000000 RBX: ffff88800f6ba000 RCX: 0000000000000001
[  179.151814][   T12] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[  179.152244][   T12] RBP: ffffc900000c7698 R08: 0000000000000000 R09: 0000000000000000
[  179.152726][   T12] R10: ffffc900000c76c8 R11: ffffffffb1f8d1e0 R12: 1ffff92000018eba
[  179.153164][   T12] R13: 00000000000005dc R14: ffffc900000c76c8 R15: ffff88800f6baf48
[  179.153614][   T12] FS:  0000000000000000(0000) GS:ffff8880b9419000(0000) knlGS:0000000000000000
[  179.154131][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  179.154508][   T12] CR2: 00007f6dd258e000 CR3: 000000002a94a002 CR4: 0000000000772ef0
[  179.154999][   T12] PKRU: 55555554
[  179.155216][   T12] Call Trace:
[  179.155445][   T12]  <TASK>
[ 179.155602][ T12] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 179.155997][ T12] ? br_del_if (net/bridge/br_if.c:742) 
[ 179.156221][ T12] ? br_device_event (net/bridge/br.c:141) 
[ 179.156527][ T12] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 179.156838][ T12] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 179.157152][ T12] ? cleanup_net (net/core/net_namespace.c:684) 
[ 179.157442][ T12] ? process_one_work (kernel/workqueue.c:3238) 
[ 179.157765][ T12] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 179.158054][ T12] ? kthread (kernel/kthread.c:464) 
[ 179.158271][ T12] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 179.158575][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 179.158912][ T12] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 179.159214][ T12] netif_set_mtu (net/core/dev.c:9652) 
[ 179.159514][ T12] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 179.159845][ T12] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 179.160077][ T12] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 179.160380][ T12] br_del_if (net/bridge/br_if.c:743) 
[ 179.160618][ T12] br_device_event (net/bridge/br.c:141) 
[ 179.160918][ T12] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 179.161243][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 179.161539][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 179.161934][ T12] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 179.162228][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 179.162653][ T12] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 179.163020][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 179.163382][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 179.163788][ T12] default_device_exit_batch (net/core/dev.c:12673) 
[ 179.164098][ T12] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 179.164472][ T12] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 179.164805][ T12] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 179.165097][ T12] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 179.165395][ T12] cleanup_net (net/core/net_namespace.c:684) 
[ 179.165711][ T12] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 179.166040][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 179.166336][ T12] process_one_work (kernel/workqueue.c:3238) 
[ 179.166648][ T12] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 179.166963][ T12] ? assign_work (kernel/workqueue.c:1200) 
[ 179.167263][ T12] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 179.167565][ T12] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 179.167886][ T12] kthread (kernel/kthread.c:464) 
[ 179.168105][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 179.168394][ T12] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 179.168694][ T12] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 179.169003][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 179.169293][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 179.169591][ T12] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 179.169912][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 179.170199][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  190.783180][ T1532] ------------[ cut here ]------------
| [ 190.783495][ T1532] WARNING: CPU: 0 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) 
| [  190.784130][ T1532] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  190.785337][ T1532] Tainted: [W]=WARN
[  190.785568][ T1532] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 190.786068][ 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) 
[ 190.786383][ T1532] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  190.787496][ T1532] RSP: 0018:ffffc90002db6ef0 EFLAGS: 00010246
[  190.787885][ T1532] RAX: 0000000000000000 RBX: ffff8880118fa000 RCX: 0000000000000001
[  190.788366][ T1532] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[  190.788823][ T1532] RBP: ffffc90002db6fd8 R08: 0000000000000000 R09: 0000000000000000
[  190.789330][ T1532] R10: ffffc90002db7008 R11: ffffffffb1f8d1e0 R12: 1ffff920005b6de2
[  190.789929][ T1532] R13: 00000000000005dc R14: ffffc90002db7008 R15: ffff8880118faf48
[  190.790390][ T1532] FS:  00007f00c5987800(0000) GS:ffff8880b9399000(0000) knlGS:0000000000000000
[  190.791065][ T1532] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  190.791446][ T1532] CR2: 00000000004e6888 CR3: 000000001178a002 CR4: 0000000000772ef0
[  190.792068][ T1532] PKRU: 55555554
[  190.792304][ T1532] Call Trace:
[  190.792527][ T1532]  <TASK>
[ 190.792842][ T1532] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 190.793167][ T1532] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 190.793487][ T1532] netif_set_mtu (net/core/dev.c:9652) 
[ 190.793853][ T1532] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 190.794176][ T1532] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 190.794402][ T1532] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 190.794715][ T1532] br_add_if (net/bridge/br_if.c:697) 
[ 190.794960][ T1532] do_set_master (net/core/rtnetlink.c:2948) 
[ 190.795257][ T1532] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 190.795558][ T1532] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 190.795876][ T1532] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 190.796283][ T1532] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 190.796580][ T1532] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 190.796885][ T1532] ? __kernel_text_address (kernel/extable.c:79) 
[ 190.797221][ T1532] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 190.797522][ 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) 
[ 190.797835][ T1532] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 190.798261][ T1532] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 190.798561][ T1532] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 190.798870][ T1532] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 190.799167][ T1532] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 190.799462][ T1532] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 190.799766][ T1532] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 190.800061][ T1532] ? __create_object (mm/kmemleak.c:771) 
[ 190.800364][ T1532] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 190.800712][ T1532] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 190.801060][ T1532] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 190.801430][ T1532] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 190.801745][ T1532] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 190.802062][ T1532] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 190.802358][ T1532] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 190.802681][ T1532] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 190.802993][ T1532] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 190.803287][ T1532] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 190.803602][ T1532] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 190.804026][ T1532] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 190.804331][ T1532] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 190.804737][ T1532] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 190.805060][ T1532] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 190.805372][ T1532] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 190.805778][ T1532] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 190.806108][ T1532] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 190.806405][ 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) 
[ 190.806724][ T1532] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 190.807039][ T1532] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 190.807339][ T1532] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 190.807661][ T1532] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 190.807981][ T1532] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 190.808296][ T1532] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 190.808602][ T1532] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 190.808916][ T1532] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 190.809257][ T1532] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 190.809661][ T1532] ___sys_sendmsg (net/socket.c:2670) 
[ 190.809970][ T1532] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 190.810273][ 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) 
[ 190.810656][ T1532] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 190.810971][ T1532] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 190.811274][ T1532] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 190.811574][ T1532] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 190.811886][ 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) 
[ 190.812215][ T1532] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 190.812530][ T1532] __sys_sendmsg (net/socket.c:2700) 
[ 190.812852][ T1532] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 190.813234][ T1532] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 190.813542][ T1532] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 190.813856][ T1532] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 190.814234][ T1532] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  190.814695][ T1532] RIP: 0033:0x7f00c5b541e7
[ 190.815118][ 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)
[  190.816590][ T1532] RSP: 002b:00007ffef8868358 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  190.817369][ T1532] RAX: ffffffffffffffda RBX: 00007ffef8868a90 RCX: 00007f00c5b541e7
[  190.818175][ T1532] RDX: 0000000000000000 RSI: 00007ffef88683c0 RDI: 0000000000000005
[  190.818973][ T1532] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  190.819725][ T1532] R10: 0000000002f85910 R11: 0000000000000246 R12: 0000000000000005
[  190.820432][ T1532] R13: 00000000686e4791 R14: 0000000000499600 R15: 0000000000000000
| [  191.216513][ T1535] ------------[ cut here ]------------
| [ 191.216931][ T1535] WARNING: CPU: 2 PID: 1535 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) 
| [  191.217596][ T1535] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  191.218810][ T1535] Tainted: [W]=WARN
[  191.219069][ T1535] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 191.219484][ T1535] 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) 
[ 191.219851][ T1535] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  191.221551][ T1535] RSP: 0018:ffffc900028d7080 EFLAGS: 00010246
[  191.222023][ T1535] RAX: 0000000000000000 RBX: ffff8880118fa000 RCX: 0000000000000001
[  191.222517][ T1535] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[  191.223036][ T1535] RBP: ffffc900028d7168 R08: 0000000000000000 R09: 0000000000000000
[  191.223532][ T1535] R10: ffffc900028d7198 R11: ffffffffb1f8d1e0 R12: 1ffff9200051ae14
[  191.224047][ T1535] R13: 00000000000005dc R14: ffffc900028d7198 R15: ffff8880118faf48
[  191.224543][ T1535] FS:  00007fd19e921800(0000) GS:ffff8880b9499000(0000) knlGS:0000000000000000
[  191.225130][ T1535] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  191.225556][ T1535] CR2: 00007fd19ea21130 CR3: 000000000cd5a002 CR4: 0000000000772ef0
[  191.226039][ T1535] PKRU: 55555554
[  191.226285][ T1535] Call Trace:
[  191.226527][ T1535]  <TASK>
[ 191.226708][ T1535] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 191.227029][ T1535] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 191.227370][ T1535] netif_set_mtu (net/core/dev.c:9652) 
[ 191.227724][ T1535] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 191.228059][ T1535] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 191.228306][ T1535] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 191.228655][ T1535] br_add_if (net/bridge/br_if.c:697) 
[ 191.228918][ T1535] do_set_master (net/core/rtnetlink.c:2948) 
[ 191.229234][ T1535] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 191.229555][ T1535] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 191.229893][ T1535] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 191.230208][ T1535] ? __dev_get_by_name (net/core/dev.c:865) 
[ 191.230527][ T1535] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 191.230854][ T1535] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 191.231176][ T1535] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 191.231495][ T1535] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 191.231838][ T1535] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 191.232167][ T1535] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 191.232509][ T1535] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 191.232864][ T1535] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 191.233180][ T1535] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 191.233507][ T1535] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 191.233840][ T1535] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 191.234157][ T1535] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 191.234481][ T1535] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 191.234813][ T1535] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 191.235142][ T1535] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 191.235466][ T1535] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 191.235819][ T1535] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 191.236134][ T1535] ? 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) 
[ 191.236458][ T1535] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 191.236788][ T1535] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 191.237110][ T1535] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 191.237434][ T1535] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 191.237767][ T1535] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 191.238084][ T1535] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 191.238412][ T1535] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 191.238744][ T1535] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 191.239060][ T1535] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 191.239473][ T1535] ___sys_sendmsg (net/socket.c:2670) 
[ 191.239822][ T1535] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 191.240138][ T1535] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 191.240464][ T1535] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 191.240791][ T1535] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 191.241114][ T1535] ? __handle_mm_fault (mm/memory.c:6212) 
[ 191.241433][ T1535] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 191.241768][ T1535] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 191.242106][ T1535] __sys_sendmsg (net/socket.c:2700) 
[ 191.242432][ T1535] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 191.242767][ T1535] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 191.243094][ T1535] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 191.243409][ T1535] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 191.243756][ T1535] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 191.244088][ T1535] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  191.244483][ T1535] RIP: 0033:0x7fd19eaee1e7
[ 191.244826][ T1535] 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)
[  191.245935][ T1535] RSP: 002b:00007ffd67b72898 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  191.246417][ T1535] RAX: ffffffffffffffda RBX: 00007ffd67b72fd0 RCX: 00007fd19eaee1e7
[  191.246896][ T1535] RDX: 0000000000000000 RSI: 00007ffd67b72900 RDI: 0000000000000005
[  191.247360][ T1535] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  191.247849][ T1535] R10: 00007fd19eb7cac0 R11: 0000000000000246 R12: 00007ffd67b73008
[  191.248324][ T1535] R13: 00000000686e4791 R14: 0000000000499600 R15: 00007ffd67b729f0
| [  193.321006][ T1552] ------------[ cut here ]------------
| [ 193.321321][ T1552] WARNING: CPU: 0 PID: 1552 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) 
| [  193.321923][ T1552] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  193.322998][ T1552] Tainted: [W]=WARN
[  193.323232][ T1552] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 193.323640][ T1552] 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) 
[ 193.323945][ T1552] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  193.325374][ T1552] RSP: 0018:ffffc90002e66ef0 EFLAGS: 00010246
[  193.325760][ T1552] RAX: 0000000000000000 RBX: ffff88800507a000 RCX: 0000000000000001
[  193.326205][ T1552] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[  193.326657][ T1552] RBP: ffffc90002e66fd8 R08: 0000000000000000 R09: 0000000000000000
[  193.327177][ T1552] R10: ffffc90002e67008 R11: ffffffffb1f8d1e0 R12: 1ffff920005ccde2
[  193.327624][ T1552] R13: 00000000000005dc R14: ffffc90002e67008 R15: ffff88800507af48
[  193.328090][ T1552] FS:  00007fcafed75800(0000) GS:ffff8880b9399000(0000) knlGS:0000000000000000
[  193.328616][ T1552] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  193.329014][ T1552] CR2: 00000000004e6888 CR3: 00000000062c0001 CR4: 0000000000772ef0
[  193.329466][ T1552] PKRU: 55555554
[  193.329698][ T1552] Call Trace:
[  193.329921][ T1552]  <TASK>
[ 193.330077][ T1552] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 193.330377][ T1552] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 193.330732][ T1552] netif_set_mtu (net/core/dev.c:9652) 
[ 193.331033][ T1552] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 193.331344][ T1552] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 193.331571][ T1552] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 193.331900][ T1552] br_add_if (net/bridge/br_if.c:697) 
[ 193.332143][ T1552] do_set_master (net/core/rtnetlink.c:2948) 
[ 193.332436][ T1552] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 193.332753][ T1552] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 193.333056][ T1552] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 193.333430][ T1552] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 193.333734][ T1552] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 193.334035][ T1552] ? __kernel_text_address (kernel/extable.c:79) 
[ 193.334334][ T1552] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 193.334679][ T1552] ? __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) 
[ 193.334979][ T1552] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 193.335349][ T1552] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 193.335666][ T1552] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 193.335973][ T1552] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 193.336277][ T1552] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 193.336598][ T1552] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 193.336918][ T1552] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 193.337225][ T1552] ? __create_object (mm/kmemleak.c:771) 
[ 193.337539][ T1552] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 193.337861][ T1552] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 193.338178][ T1552] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 193.338574][ T1552] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 193.338903][ T1552] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 193.339221][ T1552] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 193.339532][ T1552] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 193.339873][ T1552] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 193.340201][ T1552] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 193.340510][ T1552] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 193.340828][ T1552] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 193.341146][ T1552] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 193.341458][ T1552] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 193.341786][ T1552] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 193.342182][ T1552] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 193.342480][ T1552] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 193.342797][ T1552] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 193.343105][ T1552] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 193.343408][ T1552] ? 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) 
[ 193.343728][ T1552] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 193.344036][ T1552] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 193.344328][ T1552] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 193.344627][ T1552] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 193.344935][ T1552] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 193.345241][ T1552] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 193.345540][ T1552] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 193.345851][ T1552] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 193.346233][ T1552] ___sys_sendmsg (net/socket.c:2670) 
[ 193.346527][ T1552] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 193.346838][ T1552] ? __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) 
[ 193.347212][ T1552] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 193.347511][ T1552] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 193.347835][ T1552] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 193.348143][ T1552] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 193.348441][ T1552] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 193.348746][ T1552] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 193.349051][ T1552] __sys_sendmsg (net/socket.c:2700) 
[ 193.349351][ T1552] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 193.349729][ T1552] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 193.350041][ T1552] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 193.350576][ T1552] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 193.350903][ T1552] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  193.351269][ T1552] RIP: 0033:0x7fcafef421e7
[ 193.351578][ T1552] 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)
[  193.352903][ T1552] RSP: 002b:00007ffd0247bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  193.353580][ T1552] RAX: ffffffffffffffda RBX: 00007ffd0247c3b0 RCX: 00007fcafef421e7
[  193.354036][ T1552] RDX: 0000000000000000 RSI: 00007ffd0247bce0 RDI: 0000000000000005
[  193.354491][ T1552] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  193.355603][ T1552] R10: 000000000e8d7910 R11: 0000000000000246 R12: 0000000000000005
[  193.356239][ T1552] R13: 00000000686e4793 R14: 0000000000499600 R15: 0000000000000000
| [  193.771026][ T1555] ------------[ cut here ]------------
| [ 193.771357][ T1555] WARNING: CPU: 3 PID: 1555 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) 
| [  193.772340][ T1555] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  193.773515][ T1555] Tainted: [W]=WARN
[  193.773773][ T1555] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 193.774185][ T1555] 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) 
[ 193.774523][ T1555] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  193.775696][ T1555] RSP: 0018:ffffc90002e87080 EFLAGS: 00010246
[  193.776105][ T1555] RAX: 0000000000000000 RBX: ffff88800507a000 RCX: 0000000000000001
[  193.776592][ T1555] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[  193.777085][ T1555] RBP: ffffc90002e87168 R08: 0000000000000000 R09: 0000000000000000
[  193.777603][ T1555] R10: ffffc90002e87198 R11: ffffffffb28ceab8 R12: 1ffff920005d0e14
[  193.778096][ T1555] R13: 00000000000005dc R14: ffffc90002e87198 R15: ffff88800507af48
[  193.778595][ T1555] FS:  00007f4649382800(0000) GS:ffff8880b9519000(0000) knlGS:0000000000000000
[  193.779171][ T1555] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  193.779579][ T1555] CR2: 000000000043d940 CR3: 0000000011916004 CR4: 0000000000772ef0
[  193.780086][ T1555] PKRU: 55555554
[  193.780332][ T1555] Call Trace:
[  193.780583][ T1555]  <TASK>
[ 193.780758][ T1555] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 193.781091][ T1555] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 193.781414][ T1555] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 193.781823][ T1555] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 193.782153][ T1555] netif_set_mtu (net/core/dev.c:9652) 
[ 193.782477][ T1555] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 193.782825][ T1555] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 193.783242][ T1555] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 193.783488][ T1555] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 193.783834][ T1555] br_add_if (net/bridge/br_if.c:697) 
[ 193.784090][ T1555] do_set_master (net/core/rtnetlink.c:2948) 
[ 193.784410][ T1555] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 193.784747][ T1555] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 193.785075][ T1555] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 193.785405][ T1555] ? __dev_get_by_name (net/core/dev.c:865) 
[ 193.785741][ T1555] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 193.786070][ T1555] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 193.786397][ T1555] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 193.786734][ T1555] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 193.787065][ T1555] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 193.787398][ T1555] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 193.787749][ T1555] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 193.788101][ T1555] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 193.788423][ T1555] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 193.788752][ T1555] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 193.789076][ T1555] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 193.789399][ T1555] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 193.789733][ T1555] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 193.790061][ T1555] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 193.790401][ T1555] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 193.790730][ T1555] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 193.791065][ T1555] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 193.791379][ T1555] ? 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) 
[ 193.791722][ T1555] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 193.792044][ T1555] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 193.792360][ T1555] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 193.792707][ T1555] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 193.793034][ T1555] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 193.793356][ T1555] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 193.793693][ T1555] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 193.794018][ T1555] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 193.794339][ T1555] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 193.794758][ T1555] ___sys_sendmsg (net/socket.c:2670) 
[ 193.795092][ T1555] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 193.795417][ T1555] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 193.795760][ T1555] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 193.796085][ T1555] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 193.796412][ T1555] ? __handle_mm_fault (mm/memory.c:6212) 
[ 193.796739][ T1555] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 193.797056][ T1555] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 193.797400][ T1555] __sys_sendmsg (net/socket.c:2700) 
[ 193.797731][ T1555] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 193.798053][ T1555] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 193.798380][ T1555] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 193.798713][ T1555] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 193.799041][ T1555] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 193.799363][ T1555] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  193.799787][ T1555] RIP: 0033:0x7f464954f1e7
[ 193.800122][ T1555] 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)
[  193.801269][ T1555] RSP: 002b:00007ffe36584ca8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  193.801774][ T1555] RAX: ffffffffffffffda RBX: 00007ffe365853e0 RCX: 00007f464954f1e7
[  193.802256][ T1555] RDX: 0000000000000000 RSI: 00007ffe36584d10 RDI: 0000000000000005
[  193.802760][ T1555] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  193.803244][ T1555] R10: 00007f46495ddac0 R11: 0000000000000246 R12: 00007ffe36585418
[  193.803745][ T1555] R13: 00000000686e4794 R14: 0000000000499600 R15: 00007ffe36584e00
| [  210.385584][   T12] ------------[ cut here ]------------
| [ 210.385926][ T12] WARNING: CPU: 3 PID: 12 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  210.386468][   T12] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  210.387685][   T12] Tainted: [W]=WARN
[  210.387919][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  210.388306][   T12] Workqueue: netns cleanup_net
[ 210.388644][ T12] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 210.388961][ T12] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  210.390080][   T12] RSP: 0018:ffffc900000c75b0 EFLAGS: 00010246
[  210.390473][   T12] RAX: 0000000000000000 RBX: ffff8880118fa000 RCX: 0000000000000001
[  210.390945][   T12] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[  210.391412][   T12] RBP: ffffc900000c7698 R08: 0000000000000000 R09: 0000000000000000
[  210.391889][   T12] R10: ffffc900000c76c8 R11: ffffffffb1f8d1e0 R12: 1ffff92000018eba
[  210.392360][   T12] R13: 00000000000005dc R14: ffffc900000c76c8 R15: ffff8880118faf48
[  210.392881][   T12] FS:  0000000000000000(0000) GS:ffff8880b9519000(0000) knlGS:0000000000000000
[  210.393429][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  210.393851][   T12] CR2: 00007f0abc00711c CR3: 000000002a94a001 CR4: 0000000000772ef0
[  210.394328][   T12] PKRU: 55555554
[  210.394561][   T12] Call Trace:
[  210.394803][   T12]  <TASK>
[ 210.394960][ T12] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 210.395353][ T12] ? br_del_if (net/bridge/br_if.c:742) 
[ 210.395589][ T12] ? br_device_event (net/bridge/br.c:141) 
[ 210.395909][ T12] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 210.396228][ T12] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 210.396537][ T12] ? cleanup_net (net/core/net_namespace.c:684) 
[ 210.396854][ T12] ? process_one_work (kernel/workqueue.c:3238) 
[ 210.397168][ T12] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 210.397475][ T12] ? kthread (kernel/kthread.c:464) 
[ 210.397720][ T12] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 210.398031][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 210.398350][ T12] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 210.398681][ T12] netif_set_mtu (net/core/dev.c:9652) 
[ 210.398995][ T12] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 210.399325][ T12] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 210.399563][ T12] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 210.399923][ T12] br_del_if (net/bridge/br_if.c:743) 
[ 210.400161][ T12] br_device_event (net/bridge/br.c:141) 
[ 210.400471][ T12] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 210.400799][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 210.401119][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 210.401509][ T12] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 210.401827][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 210.402220][ T12] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 210.402599][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 210.403005][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 210.403399][ T12] default_device_exit_batch (net/core/dev.c:12673) 
[ 210.403717][ T12] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 210.404109][ T12] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 210.404418][ T12] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 210.404743][ T12] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 210.405060][ T12] cleanup_net (net/core/net_namespace.c:684) 
[ 210.405614][ T12] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 210.405940][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 210.406466][ T12] process_one_work (kernel/workqueue.c:3238) 
[ 210.407005][ T12] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 210.407526][ T12] ? assign_work (kernel/workqueue.c:1200) 
[ 210.407856][ T12] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 210.408174][ T12] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 210.408706][ T12] kthread (kernel/kthread.c:464) 
[ 210.408943][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 210.409250][ T12] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 210.409558][ T12] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 210.409884][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 210.410192][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 210.410506][ T12] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 210.410821][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 210.411123][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  210.851252][   T12] ------------[ cut here ]------------
| [ 210.851585][ T12] WARNING: CPU: 2 PID: 12 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  210.852132][   T12] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  210.853305][   T12] Tainted: [W]=WARN
[  210.853552][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  210.853942][   T12] Workqueue: netns cleanup_net
[ 210.854266][ T12] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 210.854579][ T12] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  210.855657][   T12] RSP: 0018:ffffc900000c75b0 EFLAGS: 00010246
[  210.856042][   T12] RAX: 0000000000000000 RBX: ffff88800507a000 RCX: 0000000000000001
[  210.856491][   T12] RDX: 0000000000000000 RSI: ffffffffb1510759 RDI: ffffffffb0c58280
[  210.856950][   T12] RBP: ffffc900000c7698 R08: 0000000000000000 R09: 0000000000000000
[  210.857401][   T12] R10: ffffc900000c76c8 R11: ffffffffb1f8d1e0 R12: 1ffff92000018eba
[  210.857864][   T12] R13: 00000000000005dc R14: ffffc900000c76c8 R15: ffff88800507af48
[  210.858315][   T12] FS:  0000000000000000(0000) GS:ffff8880b9499000(0000) knlGS:0000000000000000
[  210.858850][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  210.859233][   T12] CR2: 00007f5381aee000 CR3: 000000002a94a002 CR4: 0000000000772ef0
[  210.859707][   T12] PKRU: 55555554
[  210.859944][   T12] Call Trace:
[  210.860178][   T12]  <TASK>
[ 210.860340][ T12] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 210.860736][ T12] ? br_del_if (net/bridge/br_if.c:742) 
[ 210.860975][ T12] ? br_device_event (net/bridge/br.c:141) 
[ 210.861279][ T12] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 210.861594][ T12] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 210.861914][ T12] ? cleanup_net (net/core/net_namespace.c:684) 
[ 210.862218][ T12] ? process_one_work (kernel/workqueue.c:3238) 
[ 210.862523][ T12] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 210.862849][ T12] ? kthread (kernel/kthread.c:464) 
[ 210.863088][ T12] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 210.863396][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 210.863719][ T12] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 210.864037][ T12] netif_set_mtu (net/core/dev.c:9652) 
[ 210.864354][ T12] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 210.864690][ T12] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 210.864928][ T12] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 210.865237][ T12] br_del_if (net/bridge/br_if.c:743) 
[ 210.865475][ T12] br_device_event (net/bridge/br.c:141) 
[ 210.865792][ T12] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 210.866113][ T12] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 210.866426][ T12] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 210.866834][ T12] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 210.867140][ T12] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 210.867527][ T12] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 210.867921][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 210.868313][ T12] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 210.868724][ T12] default_device_exit_batch (net/core/dev.c:12673) 
[ 210.869049][ T12] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 210.869456][ T12] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 210.869790][ T12] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 210.870104][ T12] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 210.870429][ T12] cleanup_net (net/core/net_namespace.c:684) 
[ 210.870758][ T12] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 210.871084][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 210.871408][ T12] process_one_work (kernel/workqueue.c:3238) 
[ 210.871746][ T12] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 210.872068][ T12] ? assign_work (kernel/workqueue.c:1200) 
[ 210.872389][ T12] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 210.872732][ T12] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 210.873050][ T12] kthread (kernel/kthread.c:464) 
[ 210.873290][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 210.873608][ T12] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 210.873937][ T12] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 210.874254][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 210.874590][ T12] ? __pfx_kthread (kernel/kthread.c:413) 
[ 210.874908][ T12] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 210.875218][ T12] ? __pfx_kthread (kernel/kthread.c:413) 


Finger prints:
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:br_mtu_auto_adjust:br_del_if
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:br_mtu_auto_adjust:br_add_if