======================================
| [   23.928913][  T334] swp1: entered promiscuous mode
| [   23.934590][  T334] ------------[ cut here ]------------
| [ 23.934902][ T334] WARNING: CPU: 1 PID: 334 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) 
| [   23.935914][  T334] Modules linked in:
[   23.936756][  T334] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 23.937150][ T334] 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) 
[ 23.937467][ T334] 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
[   23.938539][  T334] RSP: 0018:ffffc90000f26ef0 EFLAGS: 00010246
[   23.938919][  T334] RAX: 0000000000000000 RBX: ffff88800b922000 RCX: 0000000000000001
[   23.939397][  T334] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[   23.940059][  T334] RBP: ffffc90000f26fd8 R08: 0000000000000000 R09: 0000000000000000
[   23.940518][  T334] R10: ffffc90000f27008 R11: ffffffff9238d1e0 R12: 1ffff920001e4de2
[   23.940964][  T334] R13: 00000000000005dc R14: ffffc90000f27008 R15: ffff88800b922f48
[   23.941417][  T334] FS:  00007f9018be2800(0000) GS:ffff8880d9019000(0000) knlGS:0000000000000000
[   23.941937][  T334] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.942322][  T334] CR2: 00000000004e6888 CR3: 000000000a7a9003 CR4: 0000000000772ef0
[   23.942771][  T334] PKRU: 55555554
[   23.942994][  T334] Call Trace:
[   23.943226][  T334]  <TASK>
[ 23.943383][ T334] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 23.943696][ T334] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.944013][ T334] netif_set_mtu (net/core/dev.c:9652) 
[ 23.944454][ T334] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 23.944770][ T334] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 23.944997][ T334] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 23.945435][ T334] br_add_if (net/bridge/br_if.c:697) 
[ 23.945673][ T334] do_set_master (net/core/rtnetlink.c:2948) 
[ 23.945973][ T334] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 23.946417][ T334] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 23.946719][ T334] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 23.947089][ T334] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 23.947576][ T334] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 23.947873][ T334] ? __kernel_text_address (kernel/extable.c:79) 
[ 23.948170][ T334] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.948581][ T334] ? __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) 
[ 23.948882][ T334] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 23.949264][ T334] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.949559][ T334] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.949851][ T334] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 23.950150][ T334] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 23.950454][ T334] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.950749][ T334] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 23.951040][ T334] ? __create_object (mm/kmemleak.c:771) 
[ 23.951350][ T334] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 23.951654][ T334] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 23.951951][ T334] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 23.952330][ T334] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 23.952634][ T334] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 23.952931][ T334] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.953231][ T334] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.953537][ T334] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.953842][ T334] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 23.954134][ T334] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.954437][ T334] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.954734][ T334] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 23.955033][ T334] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.955344][ T334] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.955647][ T334] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 23.955947][ T334] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.956251][ T334] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 23.956559][ T334] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 23.956851][ T334] ? 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) 
[ 23.957148][ T334] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 23.957464][ T334] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 23.957763][ T334] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.958069][ T334] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 23.958376][ T334] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 23.958674][ T334] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 23.958979][ T334] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 23.959292][ T334] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 23.959593][ T334] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 23.959971][ T334] ___sys_sendmsg (net/socket.c:2670) 
[ 23.960276][ T334] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 23.960571][ T334] ? __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) 
[ 23.960942][ T334] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 23.961248][ T334] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.961546][ T334] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.961848][ T334] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.962143][ T334] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 23.962450][ T334] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.962755][ T334] __sys_sendmsg (net/socket.c:2700) 
[ 23.963050][ T334] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 23.963426][ T334] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 23.963758][ T334] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.964055][ T334] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 23.964362][ T334] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   23.964733][  T334] RIP: 0033:0x7f9018daf1e7
[ 23.965042][ T334] 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)
[   23.966106][  T334] RSP: 002b:00007ffdac948b58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   23.966560][  T334] RAX: ffffffffffffffda RBX: 00007ffdac949290 RCX: 00007f9018daf1e7
[   23.967012][  T334] RDX: 0000000000000000 RSI: 00007ffdac948bc0 RDI: 0000000000000005
[   23.967470][  T334] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   23.967912][  T334] R10: 000000001128a910 R11: 0000000000000246 R12: 0000000000000005
[   23.968368][  T334] R13: 00000000686e5412 R14: 0000000000499600 R15: 0000000000000000
| [   24.519983][  T337] ------------[ cut here ]------------
| [ 24.520527][ T337] WARNING: CPU: 1 PID: 337 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) 
| [   24.521156][  T337] Modules linked in: vxlan
| [   24.522219][  T337] Tainted: [W]=WARN
[   24.522613][  T337] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 24.523002][ T337] 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) 
[ 24.523345][ T337] 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
[   24.524508][  T337] RSP: 0018:ffffc90000f47080 EFLAGS: 00010246
[   24.524901][  T337] RAX: 0000000000000000 RBX: ffff88800b922000 RCX: 0000000000000001
[   24.525368][  T337] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[   24.525838][  T337] RBP: ffffc90000f47168 R08: 0000000000000000 R09: 0000000000000000
[   24.526303][  T337] R10: ffffc90000f47198 R11: ffffffff92cceab8 R12: 1ffff920001e8e14
[   24.526822][  T337] R13: 00000000000005dc R14: ffffc90000f47198 R15: ffff88800b922f48
[   24.527331][  T337] FS:  00007fd2ee970800(0000) GS:ffff8880d9019000(0000) knlGS:0000000000000000
[   24.527884][  T337] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.528287][  T337] CR2: 000000000046e9d0 CR3: 000000000501e005 CR4: 0000000000772ef0
[   24.528749][  T337] PKRU: 55555554
[   24.528981][  T337] Call Trace:
[   24.529227][  T337]  <TASK>
[ 24.529394][ T337] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 24.529721][ T337] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 24.530047][ T337] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 24.530460][ T337] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 24.530776][ T337] netif_set_mtu (net/core/dev.c:9652) 
[ 24.531087][ T337] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 24.531419][ T337] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 24.531825][ T337] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 24.532060][ T337] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 24.532397][ T337] br_add_if (net/bridge/br_if.c:697) 
[ 24.532643][ T337] do_set_master (net/core/rtnetlink.c:2948) 
[ 24.532952][ T337] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 24.533274][ T337] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 24.533585][ T337] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 24.533906][ T337] ? __dev_get_by_name (net/core/dev.c:865) 
[ 24.534231][ T337] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 24.534547][ T337] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 24.534856][ T337] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 24.535160][ T337] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 24.535488][ T337] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 24.535816][ T337] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 24.536130][ T337] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.536463][ T337] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 24.536767][ T337] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.537086][ T337] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.537404][ T337] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 24.537721][ T337] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.538035][ T337] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.538356][ T337] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 24.538677][ T337] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.538990][ T337] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 24.539331][ T337] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 24.539641][ T337] ? 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) 
[ 24.539946][ T337] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 24.540266][ T337] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 24.540575][ T337] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.540886][ T337] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 24.541213][ T337] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 24.541541][ T337] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 24.541865][ T337] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 24.542196][ T337] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 24.542505][ T337] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 24.542905][ T337] ___sys_sendmsg (net/socket.c:2670) 
[ 24.543225][ T337] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 24.543537][ T337] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 24.543906][ T337] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 24.544263][ T337] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 24.544580][ T337] ? __handle_mm_fault (mm/memory.c:6212) 
[ 24.544886][ T337] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 24.545201][ T337] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 24.545545][ T337] __sys_sendmsg (net/socket.c:2700) 
[ 24.545853][ T337] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 24.546208][ T337] ? 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) 
[ 24.546526][ T337] ? 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) 
[ 24.546840][ T337] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.547161][ T337] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 24.547488][ T337] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   24.547876][  T337] RIP: 0033:0x7fd2eeb3d1e7
[ 24.548212][ T337] Code: Unable to access opcode bytes at 0x7fd2eeb3d1bd.

Code starting with the faulting instruction
===========================================
[   24.548627][  T337] RSP: 002b:00007ffe7d2dd428 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   24.549091][  T337] RAX: ffffffffffffffda RBX: 00007ffe7d2ddb60 RCX: 00007fd2eeb3d1e7
[   24.549566][  T337] RDX: 0000000000000000 RSI: 00007ffe7d2dd490 RDI: 0000000000000005
[   24.550030][  T337] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   24.550519][  T337] R10: 00007fd2eebcbac0 R11: 0000000000000246 R12: 00007ffe7d2ddb98
[   24.550990][  T337] R13: 00000000686e5412 R14: 0000000000499600 R15: 00007ffe7d2dd580
| [   26.711643][  T356] ------------[ cut here ]------------
| [ 26.712032][ T356] WARNING: CPU: 3 PID: 356 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) 
| [   26.714071][  T356] Modules linked in: vxlan
| [   26.715134][  T356] Tainted: [W]=WARN
[   26.715393][  T356] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 26.715764][ T356] 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) 
[ 26.716071][ T356] 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
[   26.717137][  T356] RSP: 0018:ffffc90000576ef0 EFLAGS: 00010246
[   26.717517][  T356] RAX: 0000000000000000 RBX: ffff88800b8f2000 RCX: 0000000000000001
[   26.717960][  T356] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[   26.718412][  T356] RBP: ffffc90000576fd8 R08: 0000000000000000 R09: 0000000000000000
[   26.718856][  T356] R10: ffffc90000577008 R11: ffffffff9238d1e0 R12: 1ffff920000aede2
[   26.719306][  T356] R13: 00000000000005dc R14: ffffc90000577008 R15: ffff88800b8f2f48
[   26.719747][  T356] FS:  00007f66be172800(0000) GS:ffff8880d9119000(0000) knlGS:0000000000000000
[   26.720277][  T356] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.720654][  T356] CR2: 00000000004e6888 CR3: 0000000005149003 CR4: 0000000000772ef0
[   26.721096][  T356] PKRU: 55555554
[   26.721323][  T356] Call Trace:
[   26.721544][  T356]  <TASK>
[ 26.721696][ T356] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 26.721993][ T356] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.722310][ T356] netif_set_mtu (net/core/dev.c:9652) 
[ 26.722614][ T356] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 26.722930][ T356] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 26.723153][ T356] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 26.723463][ T356] br_add_if (net/bridge/br_if.c:697) 
[ 26.723716][ T356] do_set_master (net/core/rtnetlink.c:2948) 
[ 26.724009][ T356] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 26.724321][ T356] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 26.724618][ T356] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 26.724995][ T356] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 26.725313][ T356] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 26.725607][ T356] ? __kernel_text_address (kernel/extable.c:79) 
[ 26.725906][ T356] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.726212][ T356] ? __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) 
[ 26.726512][ T356] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 26.726878][ T356] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.727195][ T356] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.727489][ T356] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 26.727782][ T356] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 26.728080][ T356] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.728385][ T356] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 26.728678][ T356] ? __create_object (mm/kmemleak.c:771) 
[ 26.728976][ T356] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 26.729279][ T356] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 26.729583][ T356] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 26.729950][ T356] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 26.730262][ T356] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 26.730573][ T356] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 26.730873][ T356] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.731185][ T356] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.731486][ T356] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 26.731778][ T356] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.732079][ T356] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 26.732386][ T356] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 26.732684][ T356] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 26.732982][ T356] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.733286][ T356] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 26.733579][ T356] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 26.733882][ T356] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 26.734205][ T356] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 26.734497][ T356] ? 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) 
[ 26.734791][ T356] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 26.735087][ T356] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 26.735385][ T356] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.735686][ T356] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 26.735986][ T356] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 26.736299][ T356] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 26.736607][ T356] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 26.736903][ T356] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 26.737203][ T356] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 26.737583][ T356] ___sys_sendmsg (net/socket.c:2670) 
[ 26.737876][ T356] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 26.738167][ T356] ? __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) 
[ 26.738550][ T356] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 26.738848][ T356] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.739149][ T356] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.739459][ T356] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.739758][ T356] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 26.740054][ T356] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.740370][ T356] __sys_sendmsg (net/socket.c:2700) 
[ 26.740667][ T356] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 26.741036][ T356] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 26.741349][ T356] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.741645][ T356] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 26.741943][ T356] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   26.742320][  T356] RIP: 0033:0x7f66be33f1e7
[ 26.742625][ T356] 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)
[   26.743700][  T356] RSP: 002b:00007ffc3bcb8168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   26.744143][  T356] RAX: ffffffffffffffda RBX: 00007ffc3bcb88a0 RCX: 00007f66be33f1e7
[   26.744591][  T356] RDX: 0000000000000000 RSI: 00007ffc3bcb81d0 RDI: 0000000000000005
[   26.745038][  T356] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   26.745484][  T356] R10: 000000003bbe7910 R11: 0000000000000246 R12: 0000000000000005
[   26.745925][  T356] R13: 00000000686e5415 R14: 0000000000499600 R15: 0000000000000000
| [   27.140541][  T359] ------------[ cut here ]------------
| [ 27.140863][ T359] WARNING: CPU: 0 PID: 359 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) 
| [   27.141485][  T359] Modules linked in: vxlan
| [   27.142800][  T359] Tainted: [W]=WARN
[   27.143042][  T359] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 27.143434][ T359] 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) 
[ 27.143772][ T359] 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
[   27.144876][  T359] RSP: 0018:ffffc90000687080 EFLAGS: 00010246
[   27.145277][  T359] RAX: 0000000000000000 RBX: ffff88800b8f2000 RCX: 0000000000000001
[   27.145742][  T359] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[   27.146208][  T359] RBP: ffffc90000687168 R08: 0000000000000000 R09: 0000000000000000
[   27.146673][  T359] R10: ffffc90000687198 R11: ffffffff9238d1e0 R12: 1ffff920000d0e14
[   27.147137][  T359] R13: 00000000000005dc R14: ffffc90000687198 R15: ffff88800b8f2f48
[   27.147760][  T359] FS:  00007f32f657e800(0000) GS:ffff8880d8f99000(0000) knlGS:0000000000000000
[   27.148464][  T359] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.148854][  T359] CR2: 000000000043d940 CR3: 0000000005260006 CR4: 0000000000772ef0
[   27.149480][  T359] PKRU: 55555554
[   27.149713][  T359] Call Trace:
[   27.149943][  T359]  <TASK>
[ 27.150101][ T359] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 27.150569][ T359] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.150896][ T359] netif_set_mtu (net/core/dev.c:9652) 
[ 27.151360][ T359] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 27.151686][ T359] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 27.151916][ T359] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 27.152372][ T359] br_add_if (net/bridge/br_if.c:697) 
[ 27.152616][ T359] do_set_master (net/core/rtnetlink.c:2948) 
[ 27.152922][ T359] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 27.153246][ T359] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 27.153557][ T359] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 27.153870][ T359] ? __dev_get_by_name (net/core/dev.c:865) 
[ 27.154201][ T359] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 27.154511][ T359] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 27.154816][ T359] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 27.155118][ T359] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 27.155434][ T359] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 27.155760][ T359] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 27.156067][ T359] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 27.156393][ T359] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 27.156692][ T359] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 27.157005][ T359] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 27.157315][ T359] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 27.157618][ T359] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 27.157926][ T359] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.158247][ T359] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 27.158553][ T359] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 27.158856][ T359] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 27.159197][ T359] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 27.159498][ T359] ? 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) 
[ 27.159802][ T359] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 27.160106][ T359] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 27.160421][ T359] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.160727][ T359] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 27.161031][ T359] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 27.161354][ T359] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 27.161668][ T359] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 27.161974][ T359] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 27.162283][ T359] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 27.162672][ T359] ___sys_sendmsg (net/socket.c:2670) 
[ 27.162975][ T359] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 27.163288][ T359] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 27.163606][ T359] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 27.163913][ T359] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 27.164236][ T359] ? __handle_mm_fault (mm/memory.c:6212) 
[ 27.164539][ T359] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 27.164836][ T359] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 27.165160][ T359] __sys_sendmsg (net/socket.c:2700) 
[ 27.165469][ T359] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 27.165780][ T359] ? 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) 
[ 27.166090][ T359] ? 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) 
[ 27.166406][ T359] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 27.166712][ T359] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 27.167050][ T359] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   27.167440][  T359] RIP: 0033:0x7f32f674b1e7
[ 27.167760][ T359] 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)
[   27.168865][  T359] RSP: 002b:00007ffc1fb4f798 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   27.169330][  T359] RAX: ffffffffffffffda RBX: 00007ffc1fb4fed0 RCX: 00007f32f674b1e7
[   27.169782][  T359] RDX: 0000000000000000 RSI: 00007ffc1fb4f800 RDI: 0000000000000005
[   27.170252][  T359] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   27.170709][  T359] R10: 00007f32f67d9ac0 R11: 0000000000000246 R12: 00007ffc1fb4ff08
[   27.171161][  T359] R13: 00000000686e5415 R14: 0000000000499600 R15: 00007ffc1fb4f8f0
| [   50.663517][   T67] ------------[ cut here ]------------
| [ 50.663985][ T67] WARNING: CPU: 1 PID: 67 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   50.664808][   T67] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   50.667210][   T67] Tainted: [W]=WARN
[   50.667583][   T67] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   50.668212][   T67] Workqueue: netns cleanup_net
[ 50.668794][ T67] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 50.669324][ T67] 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
[   50.671516][   T67] RSP: 0018:ffffc900004875b0 EFLAGS: 00010246
[   50.672047][   T67] RAX: 0000000000000000 RBX: ffff88800b922000 RCX: 0000000000000001
[   50.672689][   T67] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[   50.673322][   T67] RBP: ffffc90000487698 R08: 0000000000000000 R09: 0000000000000000
[   50.673956][   T67] R10: ffffc900004876c8 R11: ffffffff8e29be78 R12: 1ffff92000090eba
[   50.674568][   T67] R13: 00000000000005dc R14: ffffc900004876c8 R15: ffff88800b922f48
[   50.675197][   T67] FS:  0000000000000000(0000) GS:ffff8880d9019000(0000) knlGS:0000000000000000
[   50.675873][   T67] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   50.676385][   T67] CR2: 00005623a5d61b10 CR3: 000000004f74a003 CR4: 0000000000772ef0
[   50.676978][   T67] PKRU: 55555554
[   50.677290][   T67] Call Trace:
[   50.677594][   T67]  <TASK>
[ 50.677801][ T67] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 50.678340][ T67] ? br_del_if (net/bridge/br_if.c:742) 
[ 50.678654][ T67] ? br_device_event (net/bridge/br.c:141) 
[ 50.679059][ T67] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 50.679495][ T67] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 50.679891][ T67] ? cleanup_net (net/core/net_namespace.c:684) 
[ 50.680301][ T67] ? process_one_work (kernel/workqueue.c:3238) 
[ 50.680690][ T67] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 50.681081][ T67] ? kthread (kernel/kthread.c:464) 
[ 50.681392][ T67] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 50.681784][ T67] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 50.682204][ T67] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 50.682612][ T67] netif_set_mtu (net/core/dev.c:9652) 
[ 50.683012][ T67] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 50.683472][ T67] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 50.683790][ T67] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 50.684203][ T67] br_del_if (net/bridge/br_if.c:743) 
[ 50.684523][ T67] br_device_event (net/bridge/br.c:141) 
[ 50.684898][ T67] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 50.685413][ T67] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 50.685801][ T67] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 50.686306][ T67] ? 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) 
[ 50.686707][ T67] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 50.687212][ T67] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 50.687695][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 50.688205][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 50.688733][ T67] default_device_exit_batch (net/core/dev.c:12673) 
[ 50.689130][ T67] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 50.689659][ T67] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 50.690077][ T67] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 50.690483][ T67] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 50.690881][ T67] cleanup_net (net/core/net_namespace.c:684) 
[ 50.691279][ T67] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 50.691707][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 50.692116][ T67] process_one_work (kernel/workqueue.c:3238) 
[ 50.692550][ T67] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 50.692961][ T67] ? assign_work (kernel/workqueue.c:1200) 
[ 50.693389][ T67] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 50.693812][ T67] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 50.694322][ T67] kthread (kernel/kthread.c:464) 
[ 50.694689][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 50.695215][ T67] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 50.695721][ T67] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 50.696244][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 50.696748][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 50.697245][ T67] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 50.697661][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 50.698061][ T67] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   51.188873][   T67] ------------[ cut here ]------------
| [ 51.189580][ T67] WARNING: CPU: 0 PID: 67 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) 
| [   51.190117][   T67] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   51.191336][   T67] Tainted: [W]=WARN
[   51.191567][   T67] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.191951][   T67] Workqueue: netns cleanup_net
[ 51.192290][ T67] 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) 
[ 51.192600][ T67] 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
[   51.193697][   T67] RSP: 0018:ffffc900004875b0 EFLAGS: 00010246
[   51.194086][   T67] RAX: 0000000000000000 RBX: ffff88800b8f2000 RCX: 0000000000000001
[   51.194551][   T67] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[   51.194992][   T67] RBP: ffffc90000487698 R08: 0000000000000000 R09: 0000000000000000
[   51.195472][   T67] R10: ffffc900004876c8 R11: ffffffff9238d1e0 R12: 1ffff92000090eba
[   51.195917][   T67] R13: 00000000000005dc R14: ffffc900004876c8 R15: ffff88800b8f2f48
[   51.196404][   T67] FS:  0000000000000000(0000) GS:ffff8880d8f99000(0000) knlGS:0000000000000000
[   51.196924][   T67] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.197466][   T67] CR2: 000056236e04ddec CR3: 000000004f74a006 CR4: 0000000000772ef0
[   51.198134][   T67] PKRU: 55555554
[   51.198388][   T67] Call Trace:
[   51.198633][   T67]  <TASK>
[ 51.198787][ T67] ? __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) 
[ 51.199199][ T67] ? br_del_if (net/bridge/br_if.c:742) 
[ 51.199431][ T67] ? br_device_event (net/bridge/br.c:141) 
[ 51.199735][ T67] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 51.200041][ T67] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 51.200370][ T67] ? cleanup_net (net/core/net_namespace.c:684) 
[ 51.200667][ T67] ? process_one_work (kernel/workqueue.c:3238) 
[ 51.200968][ T67] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 51.201289][ T67] ? kthread (kernel/kthread.c:464) 
[ 51.201513][ T67] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 51.201822][ T67] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 51.202146][ T67] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 51.202485][ T67] netif_set_mtu (net/core/dev.c:9652) 
[ 51.202796][ T67] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 51.203148][ T67] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 51.203396][ T67] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 51.203727][ T67] br_del_if (net/bridge/br_if.c:743) 
[ 51.203961][ T67] br_device_event (net/bridge/br.c:141) 
[ 51.204305][ T67] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 51.204620][ T67] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 51.204931][ T67] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 51.205417][ T67] ? 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) 
[ 51.205740][ T67] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 51.206127][ T67] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 51.206528][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 51.206905][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 51.207329][ T67] default_device_exit_batch (net/core/dev.c:12673) 
[ 51.207640][ T67] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 51.208021][ T67] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 51.208362][ T67] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 51.208654][ T67] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 51.208956][ T67] cleanup_net (net/core/net_namespace.c:684) 
[ 51.209282][ T67] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 51.209589][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 51.209894][ T67] process_one_work (kernel/workqueue.c:3238) 
[ 51.210233][ T67] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 51.210550][ T67] ? assign_work (kernel/workqueue.c:1200) 
[ 51.210850][ T67] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 51.211161][ T67] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 51.211472][ T67] kthread (kernel/kthread.c:464) 
[ 51.211703][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 51.212016][ T67] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 51.212354][ T67] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 51.212675][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 51.213006][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 51.213369][ T67] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 51.213689][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 51.214000][ T67] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   64.304024][  T610] ------------[ cut here ]------------
| [ 64.304388][ T610] WARNING: CPU: 0 PID: 610 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) 
| [   64.305025][  T610] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   64.306160][  T610] Tainted: [W]=WARN
[   64.306409][  T610] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 64.306829][ T610] 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) 
[ 64.307201][ T610] 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
[   64.308432][  T610] RSP: 0018:ffffc90000f16ef0 EFLAGS: 00010246
[   64.308886][  T610] RAX: 0000000000000000 RBX: ffff88800eb3a000 RCX: 0000000000000001
[   64.309432][  T610] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[   64.309943][  T610] RBP: ffffc90000f16fd8 R08: 0000000000000000 R09: 0000000000000000
[   64.310478][  T610] R10: ffffc90000f17008 R11: ffffffff9238d1e0 R12: 1ffff920001e2de2
[   64.310953][  T610] R13: 00000000000005dc R14: ffffc90000f17008 R15: ffff88800eb3af48
[   64.311422][  T610] FS:  00007f582250c800(0000) GS:ffff8880d8f99000(0000) knlGS:0000000000000000
[   64.311968][  T610] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   64.312357][  T610] CR2: 00000000004e6888 CR3: 000000000f132005 CR4: 0000000000772ef0
[   64.312815][  T610] PKRU: 55555554
[   64.313042][  T610] Call Trace:
[   64.313282][  T610]  <TASK>
[ 64.313450][ T610] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 64.313772][ T610] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.314104][ T610] netif_set_mtu (net/core/dev.c:9652) 
[ 64.314429][ T610] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 64.314757][ T610] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 64.315003][ T610] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 64.315356][ T610] br_add_if (net/bridge/br_if.c:697) 
[ 64.315607][ T610] do_set_master (net/core/rtnetlink.c:2948) 
[ 64.315923][ T610] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 64.316283][ T610] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 64.316717][ T610] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 64.317253][ T610] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 64.317663][ T610] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 64.318094][ T610] ? __kernel_text_address (kernel/extable.c:79) 
[ 64.318546][ T610] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.318967][ T610] ? __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) 
[ 64.319407][ T610] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 64.319922][ T610] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 64.320368][ T610] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 64.320783][ T610] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 64.321220][ T610] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 64.321630][ T610] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 64.322061][ T610] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 64.322509][ T610] ? __create_object (mm/kmemleak.c:771) 
[ 64.322927][ T610] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 64.323379][ T610] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 64.323811][ T610] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 64.324358][ T610] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 64.324793][ T610] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 64.325230][ T610] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 64.325641][ T610] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.326079][ T610] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 64.326519][ T610] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 64.326938][ T610] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 64.327395][ T610] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 64.327817][ T610] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 64.328263][ T610] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 64.328684][ T610] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.329104][ T610] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 64.329445][ T610] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 64.329799][ T610] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 64.330129][ T610] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 64.330504][ T610] ? 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) 
[ 64.330874][ T610] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 64.331262][ T610] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 64.331577][ T610] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.331895][ T610] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 64.332239][ T610] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 64.332575][ T610] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 64.332916][ T610] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 64.333268][ T610] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 64.333604][ T610] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 64.334055][ T610] ___sys_sendmsg (net/socket.c:2670) 
[ 64.334449][ T610] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 64.334804][ T610] ? __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) 
[ 64.335208][ T610] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 64.335532][ T610] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 64.335850][ T610] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.336195][ T610] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 64.336509][ T610] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 64.336864][ T610] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 64.337201][ T610] __sys_sendmsg (net/socket.c:2700) 
[ 64.337519][ T610] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 64.338026][ T610] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 64.338375][ T610] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 64.338842][ T610] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 64.339198][ T610] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   64.339673][  T610] RIP: 0033:0x7f58226d91e7
[ 64.340013][ T610] 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)
[   64.341501][  T610] RSP: 002b:00007fff5e02abc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   64.342045][  T610] RAX: ffffffffffffffda RBX: 00007fff5e02b300 RCX: 00007f58226d91e7
[   64.342534][  T610] RDX: 0000000000000000 RSI: 00007fff5e02ac30 RDI: 0000000000000005
[   64.343103][  T610] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   64.343711][  T610] R10: 000000002bfb0910 R11: 0000000000000246 R12: 0000000000000005
[   64.344257][  T610] R13: 00000000686e543a R14: 0000000000499600 R15: 0000000000000000
| [   64.750395][  T613] ------------[ cut here ]------------
| [ 64.750713][ T613] WARNING: CPU: 0 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) 
| [   64.751338][  T613] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   64.752434][  T613] Tainted: [W]=WARN
[   64.752666][  T613] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 64.753052][ 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) 
[ 64.753376][ 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
[   64.754499][  T613] RSP: 0018:ffffc90000f47080 EFLAGS: 00010246
[   64.754890][  T613] RAX: 0000000000000000 RBX: ffff88800eb3a000 RCX: 0000000000000001
[   64.756047][  T613] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[   64.756513][  T613] RBP: ffffc90000f47168 R08: 0000000000000000 R09: 0000000000000000
[   64.756967][  T613] R10: ffffc90000f47198 R11: ffffffff9238d1e0 R12: 1ffff920001e8e14
[   64.757429][  T613] R13: 00000000000005dc R14: ffffc90000f47198 R15: ffff88800eb3af48
[   64.757886][  T613] FS:  00007f63ee357800(0000) GS:ffff8880d8f99000(0000) knlGS:0000000000000000
[   64.758433][  T613] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   64.758824][  T613] CR2: 000000000043d940 CR3: 000000000fa95005 CR4: 0000000000772ef0
[   64.759288][  T613] PKRU: 55555554
[   64.759518][  T613] Call Trace:
[   64.759746][  T613]  <TASK>
[ 64.759911][ T613] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 64.760226][ T613] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.760548][ T613] netif_set_mtu (net/core/dev.c:9652) 
[ 64.760854][ T613] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 64.761188][ T613] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 64.761424][ T613] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 64.761740][ T613] br_add_if (net/bridge/br_if.c:697) 
[ 64.761985][ T613] do_set_master (net/core/rtnetlink.c:2948) 
[ 64.762314][ T613] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 64.762624][ T613] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 64.762930][ T613] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 64.763241][ T613] ? __dev_get_by_name (net/core/dev.c:865) 
[ 64.763550][ T613] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 64.763864][ T613] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 64.764185][ T613] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 64.764493][ T613] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 64.764803][ T613] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 64.765117][ T613] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 64.765438][ T613] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 64.765757][ T613] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 64.766058][ T613] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 64.766384][ T613] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 64.766698][ T613] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 64.767010][ T613] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 64.767327][ T613] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.767638][ T613] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 64.767942][ T613] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 64.768254][ T613] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 64.768569][ T613] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 64.768874][ 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) 
[ 64.769198][ T613] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 64.769511][ T613] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 64.769818][ T613] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.770131][ T613] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 64.770464][ T613] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 64.770770][ T613] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 64.771078][ T613] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 64.771405][ T613] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 64.771708][ T613] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 64.772096][ T613] ___sys_sendmsg (net/socket.c:2670) 
[ 64.772407][ T613] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 64.772713][ T613] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 64.773021][ T613] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 64.773329][ T613] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 64.773643][ T613] ? __handle_mm_fault (mm/memory.c:6212) 
[ 64.773958][ T613] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 64.774280][ T613] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 64.774605][ T613] __sys_sendmsg (net/socket.c:2700) 
[ 64.774907][ T613] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 64.775221][ 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) 
[ 64.775536][ 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) 
[ 64.775853][ T613] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 64.776161][ T613] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 64.776479][ T613] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   64.776858][  T613] RIP: 0033:0x7f63ee5241e7
[ 64.777188][ 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)
[   64.778300][  T613] RSP: 002b:00007ffe7afda8a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   64.778765][  T613] RAX: ffffffffffffffda RBX: 00007ffe7afdafe0 RCX: 00007f63ee5241e7
[   64.779227][  T613] RDX: 0000000000000000 RSI: 00007ffe7afda910 RDI: 0000000000000005
[   64.779682][  T613] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   64.780145][  T613] R10: 00007f63ee5b2ac0 R11: 0000000000000246 R12: 00007ffe7afdb018
[   64.780611][  T613] R13: 00000000686e543b R14: 0000000000499600 R15: 00007ffe7afdaa00
| [   66.830567][  T630] ------------[ cut here ]------------
| [ 66.830881][ T630] WARNING: CPU: 3 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) 
| [   66.831493][  T630] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   66.832641][  T630] Tainted: [W]=WARN
[   66.832868][  T630] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 66.833247][ 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) 
[ 66.833551][ 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
[   66.834627][  T630] RSP: 0018:ffffc90001006ef0 EFLAGS: 00010246
[   66.835000][  T630] RAX: 0000000000000000 RBX: ffff88800e9ea000 RCX: 0000000000000001
[   66.835447][  T630] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[   66.835889][  T630] RBP: ffffc90001006fd8 R08: 0000000000000000 R09: 0000000000000000
[   66.836339][  T630] R10: ffffc90001007008 R11: ffffffff9238d1e0 R12: 1ffff92000200de2
[   66.836783][  T630] R13: 00000000000005dc R14: ffffc90001007008 R15: ffff88800e9eaf48
[   66.837234][  T630] FS:  00007f067a7b3800(0000) GS:ffff8880d9119000(0000) knlGS:0000000000000000
[   66.837749][  T630] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   66.838127][  T630] CR2: 00000000004e6888 CR3: 0000000011435003 CR4: 0000000000772ef0
[   66.838598][  T630] PKRU: 55555554
[   66.838821][  T630] Call Trace:
[   66.839042][  T630]  <TASK>
[ 66.839206][ T630] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 66.839502][ T630] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 66.839810][ T630] netif_set_mtu (net/core/dev.c:9652) 
[ 66.840110][ T630] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 66.840427][ T630] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 66.840653][ T630] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 66.840953][ T630] br_add_if (net/bridge/br_if.c:697) 
[ 66.841194][ T630] do_set_master (net/core/rtnetlink.c:2948) 
[ 66.841487][ T630] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 66.841785][ T630] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 66.842091][ T630] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 66.842475][ T630] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 66.842771][ T630] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 66.843065][ T630] ? __kernel_text_address (kernel/extable.c:79) 
[ 66.843373][ T630] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 66.843671][ 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) 
[ 66.843976][ T630] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 66.844353][ T630] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 66.844652][ T630] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 66.844947][ T630] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 66.845256][ T630] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 66.845556][ T630] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 66.845854][ T630] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 66.846147][ T630] ? __create_object (mm/kmemleak.c:771) 
[ 66.846456][ T630] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 66.846759][ T630] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 66.847061][ T630] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 66.847441][ T630] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 66.847742][ T630] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 66.848041][ T630] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 66.848344][ T630] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 66.848643][ T630] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 66.848936][ T630] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 66.849243][ T630] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 66.849539][ T630] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 66.849836][ T630] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 66.850135][ T630] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 66.850446][ T630] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 66.850747][ T630] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 66.851046][ T630] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 66.851362][ T630] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 66.851673][ T630] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 66.851970][ 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) 
[ 66.852275][ T630] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 66.852612][ T630] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 66.852912][ T630] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 66.853229][ T630] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 66.853533][ T630] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 66.853838][ T630] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 66.854142][ T630] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 66.854454][ T630] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 66.854749][ T630] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 66.855129][ T630] ___sys_sendmsg (net/socket.c:2670) 
[ 66.855431][ T630] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 66.855734][ 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) 
[ 66.856102][ T630] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 66.856414][ T630] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 66.856721][ T630] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 66.857028][ T630] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 66.857339][ 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) 
[ 66.857641][ T630] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 66.857953][ T630] __sys_sendmsg (net/socket.c:2700) 
[ 66.858254][ T630] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 66.858626][ T630] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 66.858941][ T630] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 66.859250][ T630] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 66.859551][ T630] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   66.859921][  T630] RIP: 0033:0x7f067a9801e7
[ 66.860241][ 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)
[   66.861320][  T630] RSP: 002b:00007ffda69147d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   66.861764][  T630] RAX: ffffffffffffffda RBX: 00007ffda6914f10 RCX: 00007f067a9801e7
[   66.862221][  T630] RDX: 0000000000000000 RSI: 00007ffda6914840 RDI: 0000000000000005
[   66.862708][  T630] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   66.863160][  T630] R10: 000000000a039910 R11: 0000000000000246 R12: 0000000000000005
[   66.863623][  T630] R13: 00000000686e543d R14: 0000000000499600 R15: 0000000000000000
| [   67.249236][  T633] ------------[ cut here ]------------
| [ 67.249542][ 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) 
| [   67.250140][  T633] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   67.252164][  T633] Tainted: [W]=WARN
[   67.252408][  T633] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 67.252797][ 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) 
[ 67.253116][ 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
[   67.254236][  T633] RSP: 0018:ffffc90001027080 EFLAGS: 00010246
[   67.254627][  T633] RAX: 0000000000000000 RBX: ffff88800e9ea000 RCX: 0000000000000001
[   67.255090][  T633] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[   67.255565][  T633] RBP: ffffc90001027168 R08: 0000000000000000 R09: 0000000000000000
[   67.256024][  T633] R10: ffffc90001027198 R11: ffffffff92cceab8 R12: 1ffff92000204e14
[   67.256496][  T633] R13: 00000000000005dc R14: ffffc90001027198 R15: ffff88800e9eaf48
[   67.256954][  T633] FS:  00007fdf01fe6800(0000) GS:ffff8880d9119000(0000) knlGS:0000000000000000
[   67.257504][  T633] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   67.257896][  T633] CR2: 000000000043d940 CR3: 000000001032f001 CR4: 0000000000772ef0
[   67.258379][  T633] PKRU: 55555554
[   67.258617][  T633] Call Trace:
[   67.258847][  T633]  <TASK>
[ 67.259006][ T633] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 67.259329][ T633] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 67.259638][ T633] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 67.260027][ T633] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 67.260346][ T633] netif_set_mtu (net/core/dev.c:9652) 
[ 67.260655][ T633] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 67.260970][ T633] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 67.261366][ T633] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 67.261600][ T633] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 67.261909][ T633] br_add_if (net/bridge/br_if.c:697) 
[ 67.262158][ T633] do_set_master (net/core/rtnetlink.c:2948) 
[ 67.262471][ T633] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 67.262781][ T633] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 67.263090][ T633] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 67.263404][ T633] ? __dev_get_by_name (net/core/dev.c:865) 
[ 67.263721][ T633] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 67.264027][ T633] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 67.264356][ T633] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 67.264664][ T633] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 67.264975][ T633] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 67.265301][ T633] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 67.265612][ T633] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 67.265930][ T633] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 67.266244][ T633] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 67.266549][ T633] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 67.266859][ T633] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 67.267169][ T633] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 67.267496][ T633] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 67.267807][ T633] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 67.268113][ T633] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 67.268430][ T633] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 67.268749][ T633] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 67.269059][ 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) 
[ 67.269382][ T633] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 67.269691][ T633] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 67.269994][ T633] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 67.270319][ T633] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 67.270625][ T633] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 67.270931][ T633] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 67.271259][ T633] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 67.271567][ T633] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 67.271869][ T633] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 67.272273][ T633] ___sys_sendmsg (net/socket.c:2670) 
[ 67.272581][ T633] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 67.272884][ T633] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 67.273210][ T633] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 67.273522][ T633] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 67.273842][ T633] ? __handle_mm_fault (mm/memory.c:6212) 
[ 67.274151][ T633] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 67.274464][ T633] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 67.274792][ T633] __sys_sendmsg (net/socket.c:2700) 
[ 67.275097][ T633] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 67.275418][ 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) 
[ 67.275738][ 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) 
[ 67.276044][ T633] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 67.276359][ T633] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 67.276666][ T633] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   67.277041][  T633] RIP: 0033:0x7fdf021b31e7
[ 67.277369][ 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)
[   67.278472][  T633] RSP: 002b:00007fffd01d6948 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   67.278935][  T633] RAX: ffffffffffffffda RBX: 00007fffd01d7080 RCX: 00007fdf021b31e7
[   67.279402][  T633] RDX: 0000000000000000 RSI: 00007fffd01d69b0 RDI: 0000000000000005
[   67.279865][  T633] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   67.280332][  T633] R10: 00007fdf02241ac0 R11: 0000000000000246 R12: 00007fffd01d70b8
[   67.280789][  T633] R13: 00000000686e543d R14: 0000000000499600 R15: 00007fffd01d6aa0
| [   78.513414][   T67] ------------[ cut here ]------------
| [ 78.513729][ T67] WARNING: CPU: 3 PID: 67 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   78.514245][   T67] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   78.515417][   T67] Tainted: [W]=WARN
[   78.515638][   T67] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   78.516001][   T67] Workqueue: netns cleanup_net
[ 78.516353][ T67] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 78.516675][ T67] 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
[   78.517754][   T67] RSP: 0018:ffffc900004875b0 EFLAGS: 00010246
[   78.518128][   T67] RAX: 0000000000000000 RBX: ffff88800eb3a000 RCX: 0000000000000001
[   78.518615][   T67] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[   78.519082][   T67] RBP: ffffc90000487698 R08: 0000000000000000 R09: 0000000000000000
[   78.519590][   T67] R10: ffffc900004876c8 R11: ffffffff9238d1e0 R12: 1ffff92000090eba
[   78.520051][   T67] R13: 00000000000005dc R14: ffffc900004876c8 R15: ffff88800eb3af48
[   78.520501][   T67] FS:  0000000000000000(0000) GS:ffff8880d9119000(0000) knlGS:0000000000000000
[   78.521048][   T67] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   78.521436][   T67] CR2: 00007fddac8e9000 CR3: 000000004f74a004 CR4: 0000000000772ef0
[   78.521883][   T67] PKRU: 55555554
[   78.522120][   T67] Call Trace:
[   78.522356][   T67]  <TASK>
[ 78.522508][ T67] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 78.522881][ T67] ? br_del_if (net/bridge/br_if.c:742) 
[ 78.523112][ T67] ? br_device_event (net/bridge/br.c:141) 
[ 78.523414][ T67] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 78.523720][ T67] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 78.524023][ T67] ? cleanup_net (net/core/net_namespace.c:684) 
[ 78.524330][ T67] ? process_one_work (kernel/workqueue.c:3238) 
[ 78.524622][ T67] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 78.524921][ T67] ? kthread (kernel/kthread.c:464) 
[ 78.525151][ T67] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 78.525452][ T67] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 78.525759][ T67] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 78.526067][ T67] netif_set_mtu (net/core/dev.c:9652) 
[ 78.526365][ T67] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 78.526673][ T67] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 78.526894][ T67] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 78.527202][ T67] br_del_if (net/bridge/br_if.c:743) 
[ 78.527439][ T67] br_device_event (net/bridge/br.c:141) 
[ 78.527746][ T67] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 78.528057][ T67] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 78.528363][ T67] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 78.528757][ T67] ? 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) 
[ 78.529325][ T67] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 78.529690][ T67] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 78.530061][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 78.530436][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 78.530804][ T67] default_device_exit_batch (net/core/dev.c:12673) 
[ 78.531304][ T67] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 78.531701][ T67] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 78.532002][ T67] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 78.532313][ T67] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 78.532618][ T67] cleanup_net (net/core/net_namespace.c:684) 
[ 78.533111][ T67] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 78.533417][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 78.533725][ T67] process_one_work (kernel/workqueue.c:3238) 
[ 78.534027][ T67] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 78.534552][ T67] ? assign_work (kernel/workqueue.c:1200) 
[ 78.534850][ T67] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 78.535165][ T67] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 78.535679][ T67] kthread (kernel/kthread.c:464) 
[ 78.536104][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 78.536402][ T67] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 78.536694][ T67] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 78.537200][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 78.537488][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 78.537778][ T67] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 78.538493][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 78.538801][ T67] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   78.943800][   T67] ------------[ cut here ]------------
| [ 78.944114][ T67] WARNING: CPU: 3 PID: 67 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   78.944639][   T67] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   78.946004][   T67] Tainted: [W]=WARN
[   78.946252][   T67] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   78.946629][   T67] Workqueue: netns cleanup_net
[ 78.946940][ T67] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 78.947266][ T67] 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
[   78.948324][   T67] RSP: 0018:ffffc900004875b0 EFLAGS: 00010246
[   78.948699][   T67] RAX: 0000000000000000 RBX: ffff88800e9ea000 RCX: 0000000000000001
[   78.949141][   T67] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[   78.949610][   T67] RBP: ffffc90000487698 R08: 0000000000000000 R09: 0000000000000000
[   78.950050][   T67] R10: ffffc900004876c8 R11: ffffffff9238d1e0 R12: 1ffff92000090eba
[   78.950529][   T67] R13: 00000000000005dc R14: ffffc900004876c8 R15: ffff88800e9eaf48
[   78.950990][   T67] FS:  0000000000000000(0000) GS:ffff8880d9119000(0000) knlGS:0000000000000000
[   78.951508][   T67] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   78.951880][   T67] CR2: 00007ffd99b1ed3c CR3: 000000004f74a005 CR4: 0000000000772ef0
[   78.952329][   T67] PKRU: 55555554
[   78.952548][   T67] Call Trace:
[   78.952766][   T67]  <TASK>
[ 78.952914][ T67] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 78.953297][ T67] ? br_del_if (net/bridge/br_if.c:742) 
[ 78.953521][ T67] ? br_device_event (net/bridge/br.c:141) 
[ 78.953818][ T67] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 78.954115][ T67] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 78.954414][ T67] ? cleanup_net (net/core/net_namespace.c:684) 
[ 78.954706][ T67] ? process_one_work (kernel/workqueue.c:3238) 
[ 78.954997][ T67] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 78.955298][ T67] ? kthread (kernel/kthread.c:464) 
[ 78.955519][ T67] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 78.955810][ T67] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 78.956104][ T67] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 78.956413][ T67] netif_set_mtu (net/core/dev.c:9652) 
[ 78.956705][ T67] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 78.957012][ T67] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 78.957244][ T67] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 78.957542][ T67] br_del_if (net/bridge/br_if.c:743) 
[ 78.957763][ T67] br_device_event (net/bridge/br.c:141) 
[ 78.958056][ T67] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 78.958362][ T67] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 78.958697][ T67] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 78.959095][ T67] ? 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) 
[ 78.959407][ T67] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 78.959776][ T67] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 78.960140][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 78.960531][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 78.960903][ T67] default_device_exit_batch (net/core/dev.c:12673) 
[ 78.961202][ T67] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 78.961604][ T67] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 78.961904][ T67] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 78.962202][ T67] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 78.962500][ T67] cleanup_net (net/core/net_namespace.c:684) 
[ 78.962789][ T67] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 78.963081][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 78.963389][ T67] process_one_work (kernel/workqueue.c:3238) 
[ 78.963703][ T67] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 78.964001][ T67] ? assign_work (kernel/workqueue.c:1200) 
[ 78.964312][ T67] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 78.964611][ T67] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 78.964901][ T67] kthread (kernel/kthread.c:464) 
[ 78.965121][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 78.965416][ T67] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 78.965705][ T67] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 78.965996][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 78.966293][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 78.966591][ T67] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 78.966880][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 78.967178][ T67] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   89.967850][  T800] ------------[ cut here ]------------
| [ 89.968398][ 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) 
| [   89.969433][  T800] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   89.971307][  T800] Tainted: [W]=WARN
[   89.971691][  T800] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 89.972350][ 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) 
[ 89.972979][ 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
[   89.974864][  T800] RSP: 0018:ffffc900016f6ef0 EFLAGS: 00010246
[   89.975533][  T800] RAX: 0000000000000000 RBX: ffff88800e872000 RCX: 0000000000000001
[   89.976280][  T800] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[   89.977000][  T800] RBP: ffffc900016f6fd8 R08: 0000000000000000 R09: 0000000000000000
[   89.977727][  T800] R10: ffffc900016f7008 R11: ffffffff9238d1e0 R12: 1ffff920002dede2
[   89.978448][  T800] R13: 00000000000005dc R14: ffffc900016f7008 R15: ffff88800e872f48
[   89.979192][  T800] FS:  00007fd2d9cde800(0000) GS:ffff8880d8f99000(0000) knlGS:0000000000000000
[   89.980116][  T800] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.980793][  T800] CR2: 00000000004e6888 CR3: 000000000525e005 CR4: 0000000000772ef0
[   89.981586][  T800] PKRU: 55555554
[   89.981954][  T800] Call Trace:
[   89.982336][  T800]  <TASK>
[ 89.982604][ T800] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 89.983135][ T800] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 89.983696][ T800] netif_set_mtu (net/core/dev.c:9652) 
[ 89.984238][ T800] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 89.984793][ T800] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 89.985201][ T800] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 89.985713][ T800] br_add_if (net/bridge/br_if.c:697) 
[ 89.986126][ T800] do_set_master (net/core/rtnetlink.c:2948) 
[ 89.986653][ T800] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 89.987194][ T800] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 89.987729][ T800] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 89.988408][ T800] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 89.988924][ T800] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 89.989498][ T800] ? __kernel_text_address (kernel/extable.c:79) 
[ 89.990022][ T800] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 89.990559][ 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) 
[ 89.991079][ T800] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 89.991732][ T800] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 89.992269][ T800] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 89.992793][ T800] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 89.993327][ T800] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 89.993863][ T800] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 89.994400][ T800] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 89.994898][ T800] ? __create_object (mm/kmemleak.c:771) 
[ 89.995384][ T800] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 89.995864][ T800] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 89.996376][ T800] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 89.997007][ T800] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 89.997599][ T800] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 89.998136][ T800] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 89.998670][ T800] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 89.999232][ T800] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 89.999755][ T800] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 90.000288][ T800] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 90.000813][ T800] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 90.001349][ T800] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 90.001872][ T800] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 90.002419][ T800] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 90.002946][ T800] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 90.003488][ T800] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 90.004021][ T800] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 90.004587][ T800] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 90.005101][ 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) 
[ 90.005640][ T800] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 90.006193][ T800] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 90.006721][ T800] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 90.007267][ T800] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 90.007797][ T800] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 90.008334][ T800] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 90.008869][ T800] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 90.009406][ T800] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 90.009922][ T800] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 90.010611][ T800] ___sys_sendmsg (net/socket.c:2670) 
[ 90.011133][ T800] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 90.011662][ 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) 
[ 90.012327][ T800] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 90.012855][ T800] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 90.013401][ T800] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 90.013943][ T800] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 90.014486][ 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) 
[ 90.015010][ T800] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 90.015570][ T800] __sys_sendmsg (net/socket.c:2700) 
[ 90.016084][ T800] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 90.016747][ T800] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 90.017311][ T800] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 90.017836][ T800] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 90.018374][ T800] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   90.019029][  T800] RIP: 0033:0x7fd2d9eab1e7
[ 90.019579][ 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)
[   90.021453][  T800] RSP: 002b:00007ffd8543a348 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   90.022256][  T800] RAX: ffffffffffffffda RBX: 00007ffd8543aa80 RCX: 00007fd2d9eab1e7
[   90.023049][  T800] RDX: 0000000000000000 RSI: 00007ffd8543a3b0 RDI: 0000000000000005
[   90.023900][  T800] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   90.024364][  T800] R10: 00000000161eb910 R11: 0000000000000246 R12: 0000000000000005
[   90.024808][  T800] R13: 00000000686e5454 R14: 0000000000499600 R15: 0000000000000000
| [   90.387803][  T803] ------------[ cut here ]------------
| [ 90.388103][ 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) 
| [   90.388717][  T803] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   90.389852][  T803] Tainted: [W]=WARN
[   90.390083][  T803] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 90.390491][ 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) 
[ 90.390808][ 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
[   90.391893][  T803] RSP: 0018:ffffc90001727080 EFLAGS: 00010246
[   90.392285][  T803] RAX: 0000000000000000 RBX: ffff88800e872000 RCX: 0000000000000001
[   90.392746][  T803] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[   90.393205][  T803] RBP: ffffc90001727168 R08: 0000000000000000 R09: 0000000000000000
[   90.393658][  T803] R10: ffffc90001727198 R11: ffffffff92cceab8 R12: 1ffff920002e4e14
[   90.394116][  T803] R13: 00000000000005dc R14: ffffc90001727198 R15: ffff88800e872f48
[   90.394726][  T803] FS:  00007f127a50c800(0000) GS:ffff8880d9119000(0000) knlGS:0000000000000000
[   90.395400][  T803] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.395783][  T803] CR2: 000000000043d940 CR3: 0000000011177006 CR4: 0000000000772ef0
[   90.396382][  T803] PKRU: 55555554
[   90.396612][  T803] Call Trace:
[   90.396843][  T803]  <TASK>
[ 90.397000][ T803] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 90.397473][ T803] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 90.397780][ T803] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 90.398155][ T803] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 90.398469][ T803] netif_set_mtu (net/core/dev.c:9652) 
[ 90.398770][ T803] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 90.399081][ T803] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 90.399476][ T803] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 90.399716][ T803] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 90.400021][ T803] br_add_if (net/bridge/br_if.c:697) 
[ 90.400267][ T803] do_set_master (net/core/rtnetlink.c:2948) 
[ 90.400579][ T803] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 90.400884][ T803] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 90.401206][ T803] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 90.401513][ T803] ? __dev_get_by_name (net/core/dev.c:865) 
[ 90.401854][ T803] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 90.402155][ T803] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 90.402470][ T803] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 90.402771][ T803] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 90.403078][ T803] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 90.403398][ T803] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 90.403716][ T803] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 90.404033][ T803] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 90.404345][ T803] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 90.404650][ T803] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 90.404953][ T803] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 90.405271][ T803] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 90.405581][ T803] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 90.405887][ T803] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 90.406196][ T803] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 90.406503][ T803] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 90.406816][ T803] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 90.407115][ 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) 
[ 90.407430][ T803] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 90.407737][ T803] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 90.408041][ T803] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 90.408357][ T803] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 90.408672][ T803] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 90.408975][ T803] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 90.409301][ T803] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 90.409610][ T803] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 90.409911][ T803] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 90.410306][ T803] ___sys_sendmsg (net/socket.c:2670) 
[ 90.410615][ T803] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 90.410923][ T803] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 90.411241][ T803] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 90.411544][ T803] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 90.411851][ T803] ? __handle_mm_fault (mm/memory.c:6212) 
[ 90.412155][ T803] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 90.412462][ T803] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 90.412788][ T803] __sys_sendmsg (net/socket.c:2700) 
[ 90.413091][ T803] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 90.413407][ 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) 
[ 90.413742][ 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) 
[ 90.414061][ T803] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 90.414377][ T803] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 90.414683][ T803] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   90.415057][  T803] RIP: 0033:0x7f127a6d91e7
[ 90.415391][ 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)
[   90.416489][  T803] RSP: 002b:00007ffcfd054f48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   90.416946][  T803] RAX: ffffffffffffffda RBX: 00007ffcfd055680 RCX: 00007f127a6d91e7
[   90.417424][  T803] RDX: 0000000000000000 RSI: 00007ffcfd054fb0 RDI: 0000000000000005
[   90.417880][  T803] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   90.418344][  T803] R10: 00007f127a767ac0 R11: 0000000000000246 R12: 00007ffcfd0556b8
[   90.418796][  T803] R13: 00000000686e5454 R14: 0000000000499600 R15: 00007ffcfd0550a0
| [   92.373380][  T820] ------------[ cut here ]------------
| [ 92.373719][ T820] WARNING: CPU: 2 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) 
| [   92.374354][  T820] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   92.375447][  T820] Tainted: [W]=WARN
[   92.375685][  T820] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 92.376065][ 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) 
[ 92.376391][ 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
[   92.377467][  T820] RSP: 0018:ffffc90001816ef0 EFLAGS: 00010246
[   92.377853][  T820] RAX: 0000000000000000 RBX: ffff88800bc8a000 RCX: 0000000000000001
[   92.378326][  T820] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[   92.378778][  T820] RBP: ffffc90001816fd8 R08: 0000000000000000 R09: 0000000000000000
[   92.379242][  T820] R10: ffffc90001817008 R11: ffffffff9238d1e0 R12: 1ffff92000302de2
[   92.379699][  T820] R13: 00000000000005dc R14: ffffc90001817008 R15: ffff88800bc8af48
[   92.380149][  T820] FS:  00007f3c62fe6800(0000) GS:ffff8880d9099000(0000) knlGS:0000000000000000
[   92.380688][  T820] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.381073][  T820] CR2: 00000000004e6888 CR3: 000000001163b002 CR4: 0000000000772ef0
[   92.381557][  T820] PKRU: 55555554
[   92.381792][  T820] Call Trace:
[   92.382023][  T820]  <TASK>
[ 92.382199][ T820] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 92.382508][ T820] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 92.382828][ T820] netif_set_mtu (net/core/dev.c:9652) 
[ 92.383137][ T820] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 92.383468][ T820] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 92.383708][ T820] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 92.384026][ T820] br_add_if (net/bridge/br_if.c:697) 
[ 92.384283][ T820] do_set_master (net/core/rtnetlink.c:2948) 
[ 92.384589][ T820] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 92.384900][ T820] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 92.385221][ T820] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 92.385605][ T820] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 92.385913][ T820] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 92.386233][ T820] ? __kernel_text_address (kernel/extable.c:79) 
[ 92.386548][ T820] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 92.386859][ 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) 
[ 92.387167][ T820] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 92.387554][ T820] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 92.387858][ T820] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 92.388163][ T820] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 92.388482][ T820] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 92.388792][ T820] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 92.389099][ T820] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 92.389413][ T820] ? __create_object (mm/kmemleak.c:771) 
[ 92.389722][ T820] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 92.390028][ T820] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 92.390347][ T820] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 92.390726][ T820] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 92.391040][ T820] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 92.391364][ T820] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 92.391671][ T820] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 92.391981][ T820] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 92.392303][ T820] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 92.392620][ T820] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 92.392942][ T820] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 92.393273][ T820] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 92.393587][ T820] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 92.393905][ T820] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 92.394230][ T820] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 92.394543][ T820] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 92.394854][ T820] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 92.395182][ T820] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 92.395493][ 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) 
[ 92.395799][ T820] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 92.396111][ T820] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 92.396426][ T820] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 92.396746][ T820] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 92.397055][ T820] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 92.397376][ T820] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 92.397694][ T820] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 92.398007][ T820] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 92.398324][ T820] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 92.398722][ T820] ___sys_sendmsg (net/socket.c:2670) 
[ 92.399027][ T820] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 92.399343][ 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) 
[ 92.399725][ T820] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 92.400047][ T820] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 92.400367][ T820] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 92.400681][ T820] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 92.400987][ 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) 
[ 92.401305][ T820] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 92.401618][ T820] __sys_sendmsg (net/socket.c:2700) 
[ 92.401928][ T820] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 92.402319][ T820] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 92.402647][ T820] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 92.402955][ T820] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 92.403276][ T820] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   92.403651][  T820] RIP: 0033:0x7f3c631b31e7
[ 92.403984][ 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)
[   92.405284][  T820] RSP: 002b:00007fffcae4bc48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   92.405740][  T820] RAX: ffffffffffffffda RBX: 00007fffcae4c380 RCX: 00007f3c631b31e7
[   92.406420][  T820] RDX: 0000000000000000 RSI: 00007fffcae4bcb0 RDI: 0000000000000005
[   92.406879][  T820] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   92.407346][  T820] R10: 000000002effd910 R11: 0000000000000246 R12: 0000000000000005
[   92.407801][  T820] R13: 00000000686e5456 R14: 0000000000499600 R15: 0000000000000000
| [   92.771781][  T823] ------------[ cut here ]------------
| [ 92.772102][ T823] WARNING: CPU: 2 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) 
| [   92.772722][  T823] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   92.773846][  T823] Tainted: [W]=WARN
[   92.774085][  T823] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 92.774497][ 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) 
[ 92.774825][ 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
[   92.775947][  T823] RSP: 0018:ffffc90001847080 EFLAGS: 00010246
[   92.776352][  T823] RAX: 0000000000000000 RBX: ffff88800bc8a000 RCX: 0000000000000001
[   92.776824][  T823] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[   92.777296][  T823] RBP: ffffc90001847168 R08: 0000000000000000 R09: 0000000000000000
[   92.777761][  T823] R10: ffffc90001847198 R11: ffffffff92cceab8 R12: 1ffff92000308e14
[   92.778251][  T823] R13: 00000000000005dc R14: ffffc90001847198 R15: ffff88800bc8af48
[   92.778717][  T823] FS:  00007f1089cf5800(0000) GS:ffff8880d9099000(0000) knlGS:0000000000000000
[   92.779271][  T823] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.779666][  T823] CR2: 000000000043d940 CR3: 0000000011682005 CR4: 0000000000772ef0
[   92.780137][  T823] PKRU: 55555554
[   92.780387][  T823] Call Trace:
[   92.780626][  T823]  <TASK>
[ 92.780795][ T823] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 92.781116][ T823] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 92.781441][ T823] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 92.781829][ T823] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 92.782145][ T823] netif_set_mtu (net/core/dev.c:9652) 
[ 92.782482][ T823] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 92.782814][ T823] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 92.783216][ T823] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 92.783459][ T823] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 92.783787][ T823] br_add_if (net/bridge/br_if.c:697) 
[ 92.784039][ T823] do_set_master (net/core/rtnetlink.c:2948) 
[ 92.784364][ T823] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 92.784682][ T823] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 92.785002][ T823] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 92.785323][ T823] ? __dev_get_by_name (net/core/dev.c:865) 
[ 92.785637][ T823] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 92.785950][ T823] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 92.786291][ T823] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 92.786611][ T823] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 92.786929][ T823] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 92.787272][ T823] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 92.787595][ T823] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 92.787921][ T823] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 92.788245][ T823] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 92.788561][ T823] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 92.788875][ T823] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 92.789201][ T823] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 92.789523][ T823] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 92.789842][ T823] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 92.790158][ T823] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 92.790494][ T823] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 92.790830][ T823] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 92.791145][ 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) 
[ 92.791473][ T823] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 92.791796][ T823] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 92.792107][ T823] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 92.792438][ T823] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 92.792758][ T823] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 92.793075][ T823] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 92.793406][ T823] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 92.793731][ T823] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 92.794043][ T823] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 92.794464][ T823] ___sys_sendmsg (net/socket.c:2670) 
[ 92.794781][ T823] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 92.795095][ T823] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 92.795423][ T823] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 92.795738][ T823] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 92.796054][ T823] ? __handle_mm_fault (mm/memory.c:6212) 
[ 92.796383][ T823] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 92.796693][ T823] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 92.797029][ T823] __sys_sendmsg (net/socket.c:2700) 
[ 92.797354][ T823] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 92.797669][ 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) 
[ 92.797987][ 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) 
[ 92.798322][ T823] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 92.798651][ T823] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 92.798969][ T823] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   92.799361][  T823] RIP: 0033:0x7f1089ec21e7
[ 92.799686][ 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)
[   92.800788][  T823] RSP: 002b:00007ffccf93c7f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   92.801263][  T823] RAX: ffffffffffffffda RBX: 00007ffccf93cf30 RCX: 00007f1089ec21e7
[   92.801726][  T823] RDX: 0000000000000000 RSI: 00007ffccf93c860 RDI: 0000000000000005
[   92.802209][  T823] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   92.802674][  T823] R10: 00007f1089f50ac0 R11: 0000000000000246 R12: 00007ffccf93cf68
[   92.803141][  T823] R13: 00000000686e5457 R14: 0000000000499600 R15: 00007ffccf93c950
| [  119.821137][   T67] ------------[ cut here ]------------
| [ 119.821460][ T67] WARNING: CPU: 3 PID: 67 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) 
| [  119.821959][   T67] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  119.823083][   T67] Tainted: [W]=WARN
[  119.823319][   T67] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  119.823685][   T67] Workqueue: netns cleanup_net
[ 119.824002][ T67] 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) 
[ 119.824322][ T67] 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
[  119.825377][   T67] RSP: 0018:ffffc900004875b0 EFLAGS: 00010246
[  119.825751][   T67] RAX: 0000000000000000 RBX: ffff88800e872000 RCX: 0000000000000001
[  119.826220][   T67] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[  119.826659][   T67] RBP: ffffc90000487698 R08: 0000000000000000 R09: 0000000000000000
[  119.827099][   T67] R10: ffffc900004876c8 R11: ffffffff9238d1e0 R12: 1ffff92000090eba
[  119.827549][   T67] R13: 00000000000005dc R14: ffffc900004876c8 R15: ffff88800e872f48
[  119.827985][   T67] FS:  0000000000000000(0000) GS:ffff8880d9119000(0000) knlGS:0000000000000000
[  119.828505][   T67] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  119.828873][   T67] CR2: 0000000000406141 CR3: 000000004f74a003 CR4: 0000000000772ef0
[  119.829322][   T67] PKRU: 55555554
[  119.829543][   T67] Call Trace:
[  119.829766][   T67]  <TASK>
[ 119.829913][ T67] ? __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) 
[ 119.830290][ T67] ? br_del_if (net/bridge/br_if.c:742) 
[ 119.830513][ T67] ? br_device_event (net/bridge/br.c:141) 
[ 119.830799][ T67] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 119.831101][ T67] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 119.831398][ T67] ? cleanup_net (net/core/net_namespace.c:684) 
[ 119.831691][ T67] ? process_one_work (kernel/workqueue.c:3238) 
[ 119.831980][ T67] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 119.832271][ T67] ? kthread (kernel/kthread.c:464) 
[ 119.832494][ T67] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 119.832784][ T67] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 119.833073][ T67] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 119.833385][ T67] netif_set_mtu (net/core/dev.c:9652) 
[ 119.833677][ T67] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 119.833997][ T67] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 119.834228][ T67] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 119.834547][ T67] br_del_if (net/bridge/br_if.c:743) 
[ 119.834769][ T67] br_device_event (net/bridge/br.c:141) 
[ 119.835057][ T67] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 119.835364][ T67] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 119.835666][ T67] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 119.836032][ T67] ? 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) 
[ 119.836327][ T67] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 119.836689][ T67] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 119.837048][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 119.837420][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 119.837792][ T67] default_device_exit_batch (net/core/dev.c:12673) 
[ 119.838084][ T67] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 119.838471][ T67] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 119.838769][ T67] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 119.839054][ T67] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 119.839358][ T67] cleanup_net (net/core/net_namespace.c:684) 
[ 119.839651][ T67] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 119.839940][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 119.840245][ T67] process_one_work (kernel/workqueue.c:3238) 
[ 119.840544][ T67] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 119.840845][ T67] ? assign_work (kernel/workqueue.c:1200) 
[ 119.841138][ T67] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 119.841442][ T67] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 119.841733][ T67] kthread (kernel/kthread.c:464) 
[ 119.841951][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 119.842247][ T67] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 119.842533][ T67] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 119.842832][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 119.843126][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 119.843422][ T67] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 119.843712][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 119.844004][ T67] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  120.249814][   T67] ------------[ cut here ]------------
| [ 120.250150][ T67] WARNING: CPU: 1 PID: 67 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  120.250675][   T67] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  120.251797][   T67] Tainted: [W]=WARN
[  120.252018][   T67] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  120.252400][   T67] Workqueue: netns cleanup_net
[ 120.252705][ T67] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 120.253001][ T67] 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
[  120.254056][   T67] RSP: 0018:ffffc900004875b0 EFLAGS: 00010246
[  120.254436][   T67] RAX: 0000000000000000 RBX: ffff88800bc8a000 RCX: 0000000000000001
[  120.254868][   T67] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[  120.255438][   T67] RBP: ffffc90000487698 R08: 0000000000000000 R09: 0000000000000000
[  120.255873][   T67] R10: ffffc900004876c8 R11: ffffffff9238d1e0 R12: 1ffff92000090eba
[  120.256416][   T67] R13: 00000000000005dc R14: ffffc900004876c8 R15: ffff88800bc8af48
[  120.256848][   T67] FS:  0000000000000000(0000) GS:ffff8880d9019000(0000) knlGS:0000000000000000
[  120.257357][   T67] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  120.257721][   T67] CR2: 00005623a5debcc0 CR3: 000000004f74a001 CR4: 0000000000772ef0
[  120.258151][   T67] PKRU: 55555554
[  120.258377][   T67] Call Trace:
[  120.258592][   T67]  <TASK>
[ 120.258736][ T67] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 120.259097][ T67] ? br_del_if (net/bridge/br_if.c:742) 
[ 120.259326][ T67] ? br_device_event (net/bridge/br.c:141) 
[ 120.259614][ T67] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 120.259906][ T67] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 120.260197][ T67] ? cleanup_net (net/core/net_namespace.c:684) 
[ 120.260490][ T67] ? process_one_work (kernel/workqueue.c:3238) 
[ 120.260780][ T67] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 120.261063][ T67] ? kthread (kernel/kthread.c:464) 
[ 120.261286][ T67] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 120.261573][ T67] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 120.261861][ T67] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 120.262159][ T67] netif_set_mtu (net/core/dev.c:9652) 
[ 120.262453][ T67] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 120.262765][ T67] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 120.262983][ T67] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 120.263281][ T67] br_del_if (net/bridge/br_if.c:743) 
[ 120.263505][ T67] br_device_event (net/bridge/br.c:141) 
[ 120.263799][ T67] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 120.264093][ T67] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 120.264394][ T67] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 120.264759][ T67] ? 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) 
[ 120.265054][ T67] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 120.265423][ T67] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 120.265778][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 120.266135][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 120.266507][ T67] default_device_exit_batch (net/core/dev.c:12673) 
[ 120.266794][ T67] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 120.267162][ T67] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 120.267468][ T67] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 120.267758][ T67] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 120.268052][ T67] cleanup_net (net/core/net_namespace.c:684) 
[ 120.268346][ T67] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 120.268642][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 120.268935][ T67] process_one_work (kernel/workqueue.c:3238) 
[ 120.269244][ T67] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 120.269546][ T67] ? assign_work (kernel/workqueue.c:1200) 
[ 120.269835][ T67] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 120.270131][ T67] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 120.270433][ T67] kthread (kernel/kthread.c:464) 
[ 120.270653][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 120.270937][ T67] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 120.271229][ T67] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 120.271521][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 120.271810][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 120.272099][ T67] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 120.272391][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 120.272678][ T67] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  130.743205][ T1069] ------------[ cut here ]------------
| [ 130.743540][ T1069] WARNING: CPU: 0 PID: 1069 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) 
| [  130.744164][ T1069] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  130.745302][ T1069] Tainted: [W]=WARN
[  130.745541][ T1069] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 130.745926][ T1069] 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) 
[ 130.746256][ T1069] 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
[  130.747380][ T1069] RSP: 0018:ffffc90002086ef0 EFLAGS: 00010246
[  130.747775][ T1069] RAX: 0000000000000000 RBX: ffff88800d1ba000 RCX: 0000000000000001
[  130.748253][ T1069] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[  130.748722][ T1069] RBP: ffffc90002086fd8 R08: 0000000000000000 R09: 0000000000000000
[  130.749200][ T1069] R10: ffffc90002087008 R11: ffffffff9238d1e0 R12: 1ffff92000410de2
[  130.749669][ T1069] R13: 00000000000005dc R14: ffffc90002087008 R15: ffff88800d1baf48
[  130.750130][ T1069] FS:  00007fe0f11c4800(0000) GS:ffff8880d8f99000(0000) knlGS:0000000000000000
[  130.750695][ T1069] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  130.751093][ T1069] CR2: 00000000004e6888 CR3: 00000000102d4004 CR4: 0000000000772ef0
[  130.751574][ T1069] PKRU: 55555554
[  130.751813][ T1069] Call Trace:
[  130.752046][ T1069]  <TASK>
[ 130.752215][ T1069] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 130.752527][ T1069] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 130.752850][ T1069] netif_set_mtu (net/core/dev.c:9652) 
[ 130.753165][ T1069] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 130.753512][ T1069] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 130.753751][ T1069] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 130.754077][ T1069] br_add_if (net/bridge/br_if.c:697) 
[ 130.754332][ T1069] do_set_master (net/core/rtnetlink.c:2948) 
[ 130.754643][ T1069] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 130.754955][ T1069] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 130.755294][ T1069] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 130.755687][ T1069] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 130.755999][ T1069] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 130.756319][ T1069] ? __kernel_text_address (kernel/extable.c:79) 
[ 130.756632][ T1069] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 130.756945][ T1069] ? __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) 
[ 130.757260][ T1069] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 130.757638][ T1069] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 130.757948][ T1069] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 130.758261][ T1069] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 130.758572][ T1069] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 130.758882][ T1069] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 130.759200][ T1069] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 130.759504][ T1069] ? __create_object (mm/kmemleak.c:771) 
[ 130.759812][ T1069] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 130.760119][ T1069] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 130.760435][ T1069] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 130.760815][ T1069] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 130.761136][ T1069] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 130.761460][ T1069] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 130.761773][ T1069] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 130.762090][ T1069] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 130.762410][ T1069] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 130.762717][ T1069] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 130.763030][ T1069] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 130.763348][ T1069] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 130.763663][ T1069] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 130.763984][ T1069] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 130.764304][ T1069] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 130.764616][ T1069] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 130.764925][ T1069] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 130.765258][ T1069] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 130.765573][ T1069] ? 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) 
[ 130.765889][ T1069] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 130.766212][ T1069] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 130.766522][ T1069] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 130.766856][ T1069] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 130.767186][ T1069] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 130.767499][ T1069] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 130.767822][ T1069] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 130.768137][ T1069] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 130.768453][ T1069] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 130.768850][ T1069] ___sys_sendmsg (net/socket.c:2670) 
[ 130.769158][ T1069] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 130.769475][ T1069] ? __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) 
[ 130.769864][ T1069] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 130.770189][ T1069] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 130.770505][ T1069] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 130.770822][ T1069] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 130.771132][ T1069] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 130.771451][ T1069] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 130.771769][ T1069] __sys_sendmsg (net/socket.c:2700) 
[ 130.772077][ T1069] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 130.772470][ T1069] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 130.772796][ T1069] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 130.773106][ T1069] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 130.773426][ T1069] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  130.773877][ T1069] RIP: 0033:0x7fe0f13911e7
[ 130.774207][ T1069] 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)
[  130.775324][ T1069] RSP: 002b:00007ffdaa769b88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  130.775792][ T1069] RAX: ffffffffffffffda RBX: 00007ffdaa76a2c0 RCX: 00007fe0f13911e7
[  130.776261][ T1069] RDX: 0000000000000000 RSI: 00007ffdaa769bf0 RDI: 0000000000000005
[  130.776729][ T1069] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  130.777202][ T1069] R10: 0000000016efc910 R11: 0000000000000246 R12: 0000000000000005
[  130.777890][ T1069] R13: 00000000686e547d R14: 0000000000499600 R15: 0000000000000000
| [  131.128091][ T1072] ------------[ cut here ]------------
| [ 131.128405][ T1072] WARNING: CPU: 0 PID: 1072 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) 
| [  131.129004][ T1072] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  131.130093][ T1072] Tainted: [W]=WARN
[  131.130342][ T1072] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 131.130730][ T1072] 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) 
[ 131.131040][ T1072] 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
[  131.132141][ T1072] RSP: 0018:ffffc900020b7080 EFLAGS: 00010246
[  131.134001][ T1072] RAX: 0000000000000000 RBX: ffff88800d1ba000 RCX: 0000000000000001
[  131.134488][ T1072] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[  131.134941][ T1072] RBP: ffffc900020b7168 R08: 0000000000000000 R09: 0000000000000000
[  131.135405][ T1072] R10: ffffc900020b7198 R11: ffffffff92cceab8 R12: 1ffff92000416e14
[  131.135858][ T1072] R13: 00000000000005dc R14: ffffc900020b7198 R15: ffff88800d1baf48
[  131.136331][ T1072] FS:  00007fdec35a6800(0000) GS:ffff8880d8f99000(0000) knlGS:0000000000000000
[  131.136864][ T1072] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  131.137256][ T1072] CR2: 000000000043d940 CR3: 000000000c596002 CR4: 0000000000772ef0
[  131.137712][ T1072] PKRU: 55555554
[  131.137942][ T1072] Call Trace:
[  131.138182][ T1072]  <TASK>
[ 131.138343][ T1072] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 131.138652][ T1072] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 131.138954][ T1072] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 131.139338][ T1072] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 131.139646][ T1072] netif_set_mtu (net/core/dev.c:9652) 
[ 131.139949][ T1072] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 131.140278][ T1072] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 131.140661][ T1072] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 131.140891][ T1072] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 131.141211][ T1072] br_add_if (net/bridge/br_if.c:697) 
[ 131.141452][ T1072] do_set_master (net/core/rtnetlink.c:2948) 
[ 131.141755][ T1072] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 131.142058][ T1072] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 131.142378][ T1072] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 131.142679][ T1072] ? __dev_get_by_name (net/core/dev.c:865) 
[ 131.142983][ T1072] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 131.143301][ T1072] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 131.143612][ T1072] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 131.143925][ T1072] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 131.144248][ T1072] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 131.144566][ T1072] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 131.144873][ T1072] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 131.145199][ T1072] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 131.145499][ T1072] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 131.145802][ T1072] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 131.146101][ T1072] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 131.146417][ T1072] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 131.146726][ T1072] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 131.147032][ T1072] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 131.147342][ T1072] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 131.147647][ T1072] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 131.147962][ T1072] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 131.148278][ T1072] ? 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) 
[ 131.148600][ T1072] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 131.148906][ T1072] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 131.149220][ T1072] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 131.149528][ T1072] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 131.149835][ T1072] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 131.150143][ T1072] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 131.150463][ T1072] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 131.150772][ T1072] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 131.151073][ T1072] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 131.151468][ T1072] ___sys_sendmsg (net/socket.c:2670) 
[ 131.151772][ T1072] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 131.152076][ T1072] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 131.152395][ T1072] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 131.152700][ T1072] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 131.153011][ T1072] ? __handle_mm_fault (mm/memory.c:6212) 
[ 131.153322][ T1072] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 131.153620][ T1072] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 131.153954][ T1072] __sys_sendmsg (net/socket.c:2700) 
[ 131.154266][ T1072] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 131.154571][ T1072] ? 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) 
[ 131.154879][ T1072] ? 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) 
[ 131.155199][ T1072] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 131.155506][ T1072] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 131.155810][ T1072] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  131.156200][ T1072] RIP: 0033:0x7fdec37731e7
[ 131.156516][ T1072] 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)
[  131.157606][ T1072] RSP: 002b:00007ffdd64a1eb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  131.158089][ T1072] RAX: ffffffffffffffda RBX: 00007ffdd64a25f0 RCX: 00007fdec37731e7
[  131.158890][ T1072] RDX: 0000000000000000 RSI: 00007ffdd64a1f20 RDI: 0000000000000005
[  131.159681][ T1072] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  131.160213][ T1072] R10: 00007fdec3801ac0 R11: 0000000000000246 R12: 00007ffdd64a2628
[  131.160672][ T1072] R13: 00000000686e547d R14: 0000000000499600 R15: 00007ffdd64a2010
| [  133.073308][ T1089] ------------[ cut here ]------------
| [ 133.073646][ T1089] WARNING: CPU: 1 PID: 1089 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  133.074284][ T1089] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  133.075799][ T1089] Tainted: [W]=WARN
[  133.076035][ T1089] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 133.076445][ T1089] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 133.076769][ T1089] 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
[  133.077907][ T1089] RSP: 0018:ffffc90002186ef0 EFLAGS: 00010246
[  133.078313][ T1089] RAX: 0000000000000000 RBX: ffff888011672000 RCX: 0000000000000001
[  133.078777][ T1089] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[  133.079247][ T1089] RBP: ffffc90002186fd8 R08: 0000000000000000 R09: 0000000000000000
[  133.079712][ T1089] R10: ffffc90002187008 R11: ffffffff9238d1e0 R12: 1ffff92000430de2
[  133.080193][ T1089] R13: 00000000000005dc R14: ffffc90002187008 R15: ffff888011672f48
[  133.080654][ T1089] FS:  00007f1540cc1800(0000) GS:ffff8880d9019000(0000) knlGS:0000000000000000
[  133.081204][ T1089] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  133.081601][ T1089] CR2: 00000000004e6888 CR3: 0000000011227005 CR4: 0000000000772ef0
[  133.082070][ T1089] PKRU: 55555554
[  133.082312][ T1089] Call Trace:
[  133.082545][ T1089]  <TASK>
[ 133.082705][ T1089] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 133.083018][ T1089] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 133.083355][ T1089] netif_set_mtu (net/core/dev.c:9652) 
[ 133.083666][ T1089] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 133.084000][ T1089] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 133.084253][ T1089] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 133.084564][ T1089] br_add_if (net/bridge/br_if.c:697) 
[ 133.084806][ T1089] do_set_master (net/core/rtnetlink.c:2948) 
[ 133.085113][ T1089] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 133.085433][ T1089] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 133.085746][ T1089] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 133.086143][ T1089] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 133.086463][ T1089] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 133.086774][ T1089] ? __kernel_text_address (kernel/extable.c:79) 
[ 133.087085][ T1089] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 133.087408][ T1089] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 133.087724][ T1089] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 133.088107][ T1089] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 133.088444][ T1089] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 133.088756][ T1089] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 133.089068][ T1089] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 133.089392][ T1089] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 133.089704][ T1089] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 133.090013][ T1089] ? __create_object (mm/kmemleak.c:771) 
[ 133.090342][ T1089] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 133.090657][ T1089] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 133.090973][ T1089] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 133.091369][ T1089] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 133.091691][ T1089] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 133.091989][ T1089] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 133.092307][ T1089] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 133.092614][ T1089] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 133.092912][ T1089] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 133.093221][ T1089] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 133.093517][ T1089] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 133.093817][ T1089] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 133.094114][ T1089] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 133.094423][ T1089] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 133.094724][ T1089] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 133.095019][ T1089] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 133.095325][ T1089] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 133.095635][ T1089] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 133.095929][ T1089] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 133.096247][ T1089] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 133.096552][ T1089] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 133.096845][ T1089] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 133.097148][ T1089] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 133.097456][ T1089] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 133.097756][ T1089] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 133.098055][ T1089] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 133.098365][ T1089] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 133.098658][ T1089] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 133.099038][ T1089] ___sys_sendmsg (net/socket.c:2670) 
[ 133.099340][ T1089] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 133.099636][ T1089] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 133.100004][ T1089] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 133.100539][ T1089] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 133.100839][ T1089] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 133.101140][ T1089] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 133.101653][ T1089] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 133.101947][ T1089] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 133.102260][ T1089] __sys_sendmsg (net/socket.c:2700) 
[ 133.102553][ T1089] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 133.103125][ T1089] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 133.103441][ T1089] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 133.103737][ T1089] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 133.104036][ T1089] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  133.104630][ T1089] RIP: 0033:0x7f1540e8e1e7
[ 133.104934][ T1089] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  133.106226][ T1089] RSP: 002b:00007fff63e798a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  133.106671][ T1089] RAX: ffffffffffffffda RBX: 00007fff63e79fe0 RCX: 00007f1540e8e1e7
[  133.107115][ T1089] RDX: 0000000000000000 RSI: 00007fff63e79910 RDI: 0000000000000005
[  133.107791][ T1089] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  133.108254][ T1089] R10: 000000001295b910 R11: 0000000000000246 R12: 0000000000000005
[  133.108923][ T1089] R13: 00000000686e547f R14: 0000000000499600 R15: 0000000000000000
| [  133.480854][ T1092] ------------[ cut here ]------------
| [ 133.481162][ T1092] WARNING: CPU: 3 PID: 1092 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  133.481767][ T1092] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  133.482873][ T1092] Tainted: [W]=WARN
[  133.483100][ T1092] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 133.483486][ T1092] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 133.483804][ T1092] 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
[  133.484894][ T1092] RSP: 0018:ffffc90002197080 EFLAGS: 00010246
[  133.485287][ T1092] RAX: 0000000000000000 RBX: ffff888011672000 RCX: 0000000000000001
[  133.485740][ T1092] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[  133.486199][ T1092] RBP: ffffc90002197168 R08: 0000000000000000 R09: 0000000000000000
[  133.486656][ T1092] R10: ffffc90002197198 R11: ffffffff9238d1e0 R12: 1ffff92000432e14
[  133.487105][ T1092] R13: 00000000000005dc R14: ffffc90002197198 R15: ffff888011672f48
[  133.487564][ T1092] FS:  00007fa7d8e38800(0000) GS:ffff8880d9119000(0000) knlGS:0000000000000000
[  133.488095][ T1092] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  133.488491][ T1092] CR2: 000000000043d940 CR3: 00000000102cd004 CR4: 0000000000772ef0
[  133.488947][ T1092] PKRU: 55555554
[  133.489183][ T1092] Call Trace:
[  133.489409][ T1092]  <TASK>
[ 133.489568][ T1092] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 133.489870][ T1092] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 133.490200][ T1092] netif_set_mtu (net/core/dev.c:9652) 
[ 133.490508][ T1092] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 133.490823][ T1092] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 133.491052][ T1092] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 133.491371][ T1092] br_add_if (net/bridge/br_if.c:697) 
[ 133.491615][ T1092] do_set_master (net/core/rtnetlink.c:2948) 
[ 133.491916][ T1092] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 133.492230][ T1092] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 133.492536][ T1092] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 133.492840][ T1092] ? __dev_get_by_name (net/core/dev.c:865) 
[ 133.493148][ T1092] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 133.493457][ T1092] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 133.493773][ T1092] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 133.494077][ T1092] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 133.494396][ T1092] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 133.494711][ T1092] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 133.495024][ T1092] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 133.495346][ T1092] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 133.495647][ T1092] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 133.495957][ T1092] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 133.496266][ T1092] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 133.496570][ T1092] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 133.496875][ T1092] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 133.497192][ T1092] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 133.497499][ T1092] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 133.497804][ T1092] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 133.498117][ T1092] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 133.498426][ T1092] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 133.498738][ T1092] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 133.499043][ T1092] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 133.499352][ T1092] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 133.499662][ T1092] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 133.499969][ T1092] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 133.500282][ T1092] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 133.500593][ T1092] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 133.500898][ T1092] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 133.501205][ T1092] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 133.501592][ T1092] ___sys_sendmsg (net/socket.c:2670) 
[ 133.501900][ T1092] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 133.502219][ T1092] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 133.502548][ T1092] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 133.502850][ T1092] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 133.503158][ T1092] ? __handle_mm_fault (mm/memory.c:6212) 
[ 133.503467][ T1092] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 133.503777][ T1092] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 133.504101][ T1092] __sys_sendmsg (net/socket.c:2700) 
[ 133.504421][ T1092] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 133.504722][ T1092] ? 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) 
[ 133.505035][ T1092] ? 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) 
[ 133.505351][ T1092] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 133.505659][ T1092] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 133.505964][ T1092] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  133.506352][ T1092] RIP: 0033:0x7fa7d90051e7
[ 133.506664][ T1092] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  133.507754][ T1092] RSP: 002b:00007ffd354b9f18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  133.508223][ T1092] RAX: ffffffffffffffda RBX: 00007ffd354ba650 RCX: 00007fa7d90051e7
[  133.508678][ T1092] RDX: 0000000000000000 RSI: 00007ffd354b9f80 RDI: 0000000000000005
[  133.509137][ T1092] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  133.509601][ T1092] R10: 00007fa7d9093ac0 R11: 0000000000000246 R12: 00007ffd354ba688
[  133.510058][ T1092] R13: 00000000686e5480 R14: 0000000000499600 R15: 00007ffd354ba070
| [  144.687102][   T67] ------------[ cut here ]------------
| [ 144.687660][ T67] WARNING: CPU: 2 PID: 67 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  144.688588][   T67] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  144.690615][   T67] Tainted: [W]=WARN
[  144.691024][   T67] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  144.691707][   T67] Workqueue: netns cleanup_net
[ 144.692282][ T67] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 144.692828][ T67] 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
[  144.694709][   T67] RSP: 0018:ffffc900004875b0 EFLAGS: 00010246
[  144.695398][   T67] RAX: 0000000000000000 RBX: ffff88800d1ba000 RCX: 0000000000000001
[  144.696215][   T67] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[  144.696994][   T67] RBP: ffffc90000487698 R08: 0000000000000000 R09: 0000000000000000
[  144.697762][   T67] R10: ffffc900004876c8 R11: ffffffff9238d1e0 R12: 1ffff92000090eba
[  144.698531][   T67] R13: 00000000000005dc R14: ffffc900004876c8 R15: ffff88800d1baf48
[  144.699306][   T67] FS:  0000000000000000(0000) GS:ffff8880d9099000(0000) knlGS:0000000000000000
[  144.700193][   T67] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  144.700818][   T67] CR2: 00007fcc1c7a8000 CR3: 000000004f74a003 CR4: 0000000000772ef0
[  144.701565][   T67] PKRU: 55555554
[  144.701948][   T67] Call Trace:
[  144.702341][   T67]  <TASK>
[ 144.702602][ T67] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 144.703235][ T67] ? br_del_if (net/bridge/br_if.c:742) 
[ 144.703617][ T67] ? br_device_event (net/bridge/br.c:141) 
[ 144.704153][ T67] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 144.704673][ T67] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 144.705200][ T67] ? cleanup_net (net/core/net_namespace.c:684) 
[ 144.705725][ T67] ? process_one_work (kernel/workqueue.c:3238) 
[ 144.706244][ T67] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 144.706756][ T67] ? kthread (kernel/kthread.c:464) 
[ 144.707139][ T67] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 144.707651][ T67] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 144.708188][ T67] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 144.708732][ T67] netif_set_mtu (net/core/dev.c:9652) 
[ 144.709237][ T67] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 144.709762][ T67] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 144.710154][ T67] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 144.710684][ T67] br_del_if (net/bridge/br_if.c:743) 
[ 144.711072][ T67] br_device_event (net/bridge/br.c:141) 
[ 144.711589][ T67] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 144.712086][ T67] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 144.712608][ T67] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 144.713255][ T67] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 144.713798][ T67] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 144.714477][ T67] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 144.715113][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 144.715783][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 144.716457][ T67] default_device_exit_batch (net/core/dev.c:12673) 
[ 144.716976][ T67] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 144.717651][ T67] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 144.718205][ T67] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 144.718729][ T67] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 144.719281][ T67] cleanup_net (net/core/net_namespace.c:684) 
[ 144.719826][ T67] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 144.720380][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 144.720927][ T67] process_one_work (kernel/workqueue.c:3238) 
[ 144.721490][ T67] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 144.722033][ T67] ? assign_work (kernel/workqueue.c:1200) 
[ 144.722597][ T67] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 144.723162][ T67] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 144.723706][ T67] kthread (kernel/kthread.c:464) 
[ 144.724120][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 144.724658][ T67] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 144.725206][ T67] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 144.725740][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 144.726279][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 144.726813][ T67] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 144.727354][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 144.727880][ T67] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  145.110414][   T67] ------------[ cut here ]------------
| [ 145.110810][ T67] WARNING: CPU: 0 PID: 67 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) 
| [  145.111660][   T67] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  145.113618][   T67] Tainted: [W]=WARN
[  145.114007][   T67] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  145.114651][   T67] Workqueue: netns cleanup_net
[ 145.115183][ T67] 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) 
[ 145.115705][ T67] 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
[  145.117505][   T67] RSP: 0018:ffffc900004875b0 EFLAGS: 00010246
[  145.118140][   T67] RAX: 0000000000000000 RBX: ffff888011672000 RCX: 0000000000000001
[  145.118903][   T67] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[  145.119673][   T67] RBP: ffffc90000487698 R08: 0000000000000000 R09: 0000000000000000
[  145.120433][   T67] R10: ffffc900004876c8 R11: ffffffff9238d1e0 R12: 1ffff92000090eba
[  145.121195][   T67] R13: 00000000000005dc R14: ffffc900004876c8 R15: ffff888011672f48
[  145.121914][   T67] FS:  0000000000000000(0000) GS:ffff8880d8f99000(0000) knlGS:0000000000000000
[  145.122798][   T67] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  145.123415][   T67] CR2: 00005623a5e48f38 CR3: 000000004f74a006 CR4: 0000000000772ef0
[  145.124188][   T67] PKRU: 55555554
[  145.124567][   T67] Call Trace:
[  145.124941][   T67]  <TASK>
[ 145.125205][ T67] ? __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) 
[ 145.125836][ T67] ? br_del_if (net/bridge/br_if.c:742) 
[ 145.126229][ T67] ? br_device_event (net/bridge/br.c:141) 
[ 145.126720][ T67] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 145.127232][ T67] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 145.127727][ T67] ? cleanup_net (net/core/net_namespace.c:684) 
[ 145.128237][ T67] ? process_one_work (kernel/workqueue.c:3238) 
[ 145.128740][ T67] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 145.129272][ T67] ? kthread (kernel/kthread.c:464) 
[ 145.129636][ T67] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 145.130120][ T67] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 145.130636][ T67] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 145.131152][ T67] netif_set_mtu (net/core/dev.c:9652) 
[ 145.131661][ T67] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 145.132186][ T67] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 145.132555][ T67] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 145.133051][ T67] br_del_if (net/bridge/br_if.c:743) 
[ 145.133444][ T67] br_device_event (net/bridge/br.c:141) 
[ 145.133938][ T67] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 145.134467][ T67] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 145.134983][ T67] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 145.135604][ T67] ? 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) 
[ 145.136085][ T67] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 145.136706][ T67] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 145.137323][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 145.137935][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 145.138574][ T67] default_device_exit_batch (net/core/dev.c:12673) 
[ 145.139064][ T67] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 145.139679][ T67] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 145.140158][ T67] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 145.140656][ T67] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 145.141158][ T67] cleanup_net (net/core/net_namespace.c:684) 
[ 145.141657][ T67] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 145.142144][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 145.142652][ T67] process_one_work (kernel/workqueue.c:3238) 
[ 145.143151][ T67] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 145.143655][ T67] ? assign_work (kernel/workqueue.c:1200) 
[ 145.144141][ T67] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 145.144649][ T67] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 145.145129][ T67] kthread (kernel/kthread.c:464) 
[ 145.145511][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 145.145983][ T67] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 145.146494][ T67] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 145.146981][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 145.147478][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 145.147985][ T67] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 145.148502][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 145.149005][ T67] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  155.870808][ T1273] ------------[ cut here ]------------
| [ 155.871117][ T1273] WARNING: CPU: 3 PID: 1273 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) 
| [  155.871707][ T1273] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  155.872773][ T1273] Tainted: [W]=WARN
[  155.872995][ T1273] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 155.873369][ T1273] 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) 
[ 155.873671][ T1273] 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
[  155.874761][ T1273] RSP: 0018:ffffc90001de6ef0 EFLAGS: 00010246
[  155.875136][ T1273] RAX: 0000000000000000 RBX: ffff88800def2000 RCX: 0000000000000001
[  155.875589][ T1273] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[  155.876033][ T1273] RBP: ffffc90001de6fd8 R08: 0000000000000000 R09: 0000000000000000
[  155.876480][ T1273] R10: ffffc90001de7008 R11: ffffffff9238d1e0 R12: 1ffff920003bcde2
[  155.876928][ T1273] R13: 00000000000005dc R14: ffffc90001de7008 R15: ffff88800def2f48
[  155.877375][ T1273] FS:  00007fb4aec84800(0000) GS:ffff8880d9119000(0000) knlGS:0000000000000000
[  155.877892][ T1273] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  155.878275][ T1273] CR2: 00000000004e6888 CR3: 0000000012903004 CR4: 0000000000772ef0
[  155.878723][ T1273] PKRU: 55555554
[  155.878949][ T1273] Call Trace:
[  155.879169][ T1273]  <TASK>
[ 155.879329][ T1273] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 155.879629][ T1273] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 155.879939][ T1273] netif_set_mtu (net/core/dev.c:9652) 
[ 155.880239][ T1273] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 155.880553][ T1273] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 155.880778][ T1273] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 155.881078][ T1273] br_add_if (net/bridge/br_if.c:697) 
[ 155.881319][ T1273] do_set_master (net/core/rtnetlink.c:2948) 
[ 155.881614][ T1273] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 155.881912][ T1273] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 155.882216][ T1273] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 155.882591][ T1273] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 155.882883][ T1273] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 155.883185][ T1273] ? __kernel_text_address (kernel/extable.c:79) 
[ 155.883481][ T1273] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 155.883783][ T1273] ? __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) 
[ 155.884086][ T1273] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 155.884460][ T1273] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 155.884764][ T1273] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 155.885058][ T1273] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 155.885359][ T1273] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 155.885655][ T1273] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 155.885947][ T1273] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 155.886246][ T1273] ? __create_object (mm/kmemleak.c:771) 
[ 155.886541][ T1273] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 155.886838][ T1273] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 155.887138][ T1273] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 155.887511][ T1273] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 155.887812][ T1273] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 155.888109][ T1273] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 155.888407][ T1273] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 155.888707][ T1273] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 155.889002][ T1273] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 155.889319][ T1273] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 155.889616][ T1273] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 155.889908][ T1273] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 155.890208][ T1273] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 155.890508][ T1273] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 155.890806][ T1273] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 155.891101][ T1273] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 155.891401][ T1273] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 155.891710][ T1273] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 155.892004][ T1273] ? 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) 
[ 155.892306][ T1273] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 155.892601][ T1273] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 155.892892][ T1273] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 155.893200][ T1273] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 155.893498][ T1273] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 155.893794][ T1273] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 155.894103][ T1273] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 155.894407][ T1273] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 155.894700][ T1273] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 155.895079][ T1273] ___sys_sendmsg (net/socket.c:2670) 
[ 155.895378][ T1273] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 155.895668][ T1273] ? __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) 
[ 155.896036][ T1273] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 155.896556][ T1273] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 155.896855][ T1273] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 155.897153][ T1273] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 155.897455][ T1273] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 155.897958][ T1273] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 155.898267][ T1273] __sys_sendmsg (net/socket.c:2700) 
[ 155.898562][ T1273] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 155.898925][ T1273] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 155.899447][ T1273] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 155.899744][ T1273] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 155.900040][ T1273] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  155.900410][ T1273] RIP: 0033:0x7fb4aee511e7
[ 155.900935][ T1273] 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)
[  155.902217][ T1273] RSP: 002b:00007ffcc82745f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  155.902660][ T1273] RAX: ffffffffffffffda RBX: 00007ffcc8274d30 RCX: 00007fb4aee511e7
[  155.903099][ T1273] RDX: 0000000000000000 RSI: 00007ffcc8274660 RDI: 0000000000000005
[  155.903764][ T1273] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  155.904213][ T1273] R10: 0000000016a94910 R11: 0000000000000246 R12: 0000000000000005
[  155.904650][ T1273] R13: 00000000686e5496 R14: 0000000000499600 R15: 0000000000000000
| [  156.268234][ T1276] ------------[ cut here ]------------
| [ 156.268547][ T1276] WARNING: CPU: 0 PID: 1276 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) 
| [  156.269149][ T1276] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  156.270479][ T1276] Tainted: [W]=WARN
[  156.270708][ T1276] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 156.271083][ T1276] 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) 
[ 156.271401][ T1276] 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
[  156.272495][ T1276] RSP: 0018:ffffc900028b7080 EFLAGS: 00010246
[  156.272884][ T1276] RAX: 0000000000000000 RBX: ffff88800def2000 RCX: 0000000000000001
[  156.273340][ T1276] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[  156.273789][ T1276] RBP: ffffc900028b7168 R08: 0000000000000000 R09: 0000000000000000
[  156.274259][ T1276] R10: ffffc900028b7198 R11: ffffffff9238d1e0 R12: 1ffff92000516e14
[  156.274710][ T1276] R13: 00000000000005dc R14: ffffc900028b7198 R15: ffff88800def2f48
[  156.275160][ T1276] FS:  00007f88327ff800(0000) GS:ffff8880d8f99000(0000) knlGS:0000000000000000
[  156.275696][ T1276] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  156.276082][ T1276] CR2: 000000000043d940 CR3: 00000000128c9005 CR4: 0000000000772ef0
[  156.276553][ T1276] PKRU: 55555554
[  156.276790][ T1276] Call Trace:
[  156.277015][ T1276]  <TASK>
[ 156.277184][ T1276] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 156.277489][ T1276] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 156.277803][ T1276] netif_set_mtu (net/core/dev.c:9652) 
[ 156.278111][ T1276] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 156.278439][ T1276] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 156.278670][ T1276] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 156.278978][ T1276] br_add_if (net/bridge/br_if.c:697) 
[ 156.279227][ T1276] do_set_master (net/core/rtnetlink.c:2948) 
[ 156.279530][ T1276] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 156.279834][ T1276] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 156.280140][ T1276] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 156.280462][ T1276] ? __dev_get_by_name (net/core/dev.c:865) 
[ 156.280774][ T1276] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 156.281074][ T1276] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 156.281390][ T1276] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 156.281689][ T1276] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 156.281996][ T1276] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 156.282317][ T1276] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 156.282629][ T1276] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 156.282943][ T1276] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 156.283250][ T1276] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 156.283556][ T1276] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 156.283862][ T1276] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 156.284165][ T1276] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 156.284492][ T1276] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 156.284803][ T1276] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 156.285115][ T1276] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 156.285430][ T1276] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 156.285743][ T1276] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 156.286043][ T1276] ? 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) 
[ 156.286356][ T1276] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 156.286665][ T1276] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 156.286966][ T1276] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 156.287283][ T1276] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 156.287591][ T1276] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 156.287893][ T1276] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 156.288219][ T1276] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 156.288528][ T1276] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 156.288828][ T1276] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 156.289222][ T1276] ___sys_sendmsg (net/socket.c:2670) 
[ 156.289542][ T1276] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 156.289842][ T1276] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 156.290148][ T1276] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 156.290453][ T1276] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 156.290761][ T1276] ? __handle_mm_fault (mm/memory.c:6212) 
[ 156.291063][ T1276] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 156.291374][ T1276] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 156.291699][ T1276] __sys_sendmsg (net/socket.c:2700) 
[ 156.291999][ T1276] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 156.292318][ T1276] ? 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) 
[ 156.292633][ T1276] ? 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) 
[ 156.292934][ T1276] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 156.293251][ T1276] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 156.293557][ T1276] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  156.293942][ T1276] RIP: 0033:0x7f88329cc1e7
[ 156.294260][ T1276] 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)
[  156.295341][ T1276] RSP: 002b:00007fff0d48cb58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  156.295802][ T1276] RAX: ffffffffffffffda RBX: 00007fff0d48d290 RCX: 00007f88329cc1e7
[  156.296272][ T1276] RDX: 0000000000000000 RSI: 00007fff0d48cbc0 RDI: 0000000000000005
[  156.296737][ T1276] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  156.297202][ T1276] R10: 00007f8832a5aac0 R11: 0000000000000246 R12: 00007fff0d48d2c8
[  156.297654][ T1276] R13: 00000000686e5496 R14: 0000000000499600 R15: 00007fff0d48ccb0
| [  158.235441][ T1293] ------------[ cut here ]------------
| [ 158.235759][ T1293] WARNING: CPU: 3 PID: 1293 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) 
| [  158.236351][ T1293] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  158.237413][ T1293] Tainted: [W]=WARN
[  158.237636][ T1293] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 158.238002][ T1293] 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) 
[ 158.238313][ T1293] 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
[  158.239372][ T1293] RSP: 0018:ffffc900029b6ef0 EFLAGS: 00010246
[  158.239745][ T1293] RAX: 0000000000000000 RBX: ffff888005b82000 RCX: 0000000000000001
[  158.240190][ T1293] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[  158.240635][ T1293] RBP: ffffc900029b6fd8 R08: 0000000000000000 R09: 0000000000000000
[  158.241072][ T1293] R10: ffffc900029b7008 R11: ffffffff9238d1e0 R12: 1ffff92000536de2
[  158.241518][ T1293] R13: 00000000000005dc R14: ffffc900029b7008 R15: ffff888005b82f48
[  158.241954][ T1293] FS:  00007f57215c8800(0000) GS:ffff8880d9119000(0000) knlGS:0000000000000000
[  158.242480][ T1293] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  158.242850][ T1293] CR2: 00000000004e6888 CR3: 00000000033d7001 CR4: 0000000000772ef0
[  158.243297][ T1293] PKRU: 55555554
[  158.243520][ T1293] Call Trace:
[  158.243738][ T1293]  <TASK>
[ 158.243899][ T1293] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 158.244201][ T1293] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 158.244516][ T1293] netif_set_mtu (net/core/dev.c:9652) 
[ 158.244810][ T1293] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 158.245120][ T1293] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 158.245352][ T1293] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 158.245653][ T1293] br_add_if (net/bridge/br_if.c:697) 
[ 158.245885][ T1293] do_set_master (net/core/rtnetlink.c:2948) 
[ 158.246184][ T1293] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 158.246484][ T1293] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 158.246786][ T1293] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 158.247157][ T1293] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 158.247459][ T1293] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 158.247750][ T1293] ? __kernel_text_address (kernel/extable.c:79) 
[ 158.248044][ T1293] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 158.248346][ T1293] ? __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) 
[ 158.248645][ T1293] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 158.249009][ T1293] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 158.249312][ T1293] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 158.249607][ T1293] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 158.249901][ T1293] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 158.250204][ T1293] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 158.250509][ T1293] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 158.250801][ T1293] ? __create_object (mm/kmemleak.c:771) 
[ 158.251102][ T1293] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 158.251419][ T1293] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 158.251717][ T1293] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 158.252081][ T1293] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 158.252388][ T1293] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 158.252688][ T1293] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 158.252982][ T1293] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 158.253287][ T1293] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 158.253589][ T1293] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 158.253886][ T1293] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 158.254187][ T1293] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 158.254478][ T1293] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 158.254773][ T1293] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 158.255069][ T1293] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 158.255372][ T1293] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 158.255671][ T1293] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 158.255966][ T1293] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 158.256277][ T1293] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 158.256567][ T1293] ? 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) 
[ 158.256861][ T1293] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 158.257159][ T1293] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 158.257457][ T1293] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 158.257757][ T1293] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 158.258052][ T1293] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 158.258353][ T1293] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 158.258653][ T1293] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 158.258948][ T1293] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 158.259247][ T1293] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 158.259624][ T1293] ___sys_sendmsg (net/socket.c:2670) 
[ 158.259921][ T1293] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 158.260223][ T1293] ? __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) 
[ 158.260588][ T1293] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 158.260887][ T1293] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 158.261189][ T1293] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 158.261487][ T1293] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 158.261779][ T1293] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 158.262076][ T1293] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 158.262385][ T1293] __sys_sendmsg (net/socket.c:2700) 
[ 158.262677][ T1293] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 158.263040][ T1293] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 158.263357][ T1293] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 158.263652][ T1293] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 158.263955][ T1293] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  158.264326][ T1293] RIP: 0033:0x7f57217951e7
[ 158.264635][ T1293] 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)
[  158.265690][ T1293] RSP: 002b:00007ffef2124508 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  158.266134][ T1293] RAX: ffffffffffffffda RBX: 00007ffef2124c40 RCX: 00007f57217951e7
[  158.266584][ T1293] RDX: 0000000000000000 RSI: 00007ffef2124570 RDI: 0000000000000005
[  158.267251][ T1293] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  158.267690][ T1293] R10: 0000000005d54910 R11: 0000000000000246 R12: 0000000000000005
[  158.268124][ T1293] R13: 00000000686e5498 R14: 0000000000499600 R15: 0000000000000000
| [  158.635693][ T1296] ------------[ cut here ]------------
| [ 158.636017][ T1296] WARNING: CPU: 0 PID: 1296 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) 
| [  158.636637][ T1296] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  158.637740][ T1296] Tainted: [W]=WARN
[  158.637980][ T1296] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 158.638374][ T1296] 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) 
[ 158.638693][ T1296] 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
[  158.639791][ T1296] RSP: 0018:ffffc900029e7080 EFLAGS: 00010246
[  158.640201][ T1296] RAX: 0000000000000000 RBX: ffff888005b82000 RCX: 0000000000000001
[  158.640658][ T1296] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[  158.641122][ T1296] RBP: ffffc900029e7168 R08: 0000000000000000 R09: 0000000000000000
[  158.641591][ T1296] R10: ffffc900029e7198 R11: ffffffff92cceab8 R12: 1ffff9200053ce14
[  158.642047][ T1296] R13: 00000000000005dc R14: ffffc900029e7198 R15: ffff888005b82f48
[  158.642526][ T1296] FS:  00007fccff746800(0000) GS:ffff8880d8f99000(0000) knlGS:0000000000000000
[  158.643057][ T1296] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  158.643467][ T1296] CR2: 000000000043d940 CR3: 0000000009b06002 CR4: 0000000000772ef0
[  158.643945][ T1296] PKRU: 55555554
[  158.644194][ T1296] Call Trace:
[  158.644421][ T1296]  <TASK>
[ 158.644577][ T1296] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 158.644892][ T1296] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 158.645220][ T1296] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 158.645594][ T1296] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 158.645898][ T1296] netif_set_mtu (net/core/dev.c:9652) 
[ 158.646226][ T1296] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 158.646539][ T1296] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 158.646926][ T1296] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 158.647168][ T1296] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 158.647491][ T1296] br_add_if (net/bridge/br_if.c:697) 
[ 158.647728][ T1296] do_set_master (net/core/rtnetlink.c:2948) 
[ 158.648035][ T1296] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 158.649591][ T1296] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 158.649902][ T1296] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 158.650214][ T1296] ? __dev_get_by_name (net/core/dev.c:865) 
[ 158.650535][ T1296] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 158.650837][ T1296] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 158.651140][ T1296] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 158.651464][ T1296] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 158.651772][ T1296] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 158.652082][ T1296] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 158.652428][ T1296] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 158.652745][ T1296] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 158.653047][ T1296] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 158.653373][ T1296] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 158.653675][ T1296] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 158.653983][ T1296] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 158.654301][ T1296] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 158.654619][ T1296] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 158.654922][ T1296] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 158.655238][ T1296] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 158.655568][ T1296] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 158.655870][ T1296] ? 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) 
[ 158.656192][ T1296] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 158.656518][ T1296] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 158.656818][ T1296] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 158.657127][ T1296] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 158.657461][ T1296] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 158.657766][ T1296] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 158.658074][ T1296] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 158.658401][ T1296] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 158.658703][ T1296] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 158.659096][ T1296] ___sys_sendmsg (net/socket.c:2670) 
[ 158.659420][ T1296] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 158.659730][ T1296] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 158.660039][ T1296] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 158.660356][ T1296] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 158.660677][ T1296] ? __handle_mm_fault (mm/memory.c:6212) 
[ 158.660978][ T1296] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 158.661284][ T1296] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 158.661634][ T1296] __sys_sendmsg (net/socket.c:2700) 
[ 158.661936][ T1296] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 158.662246][ T1296] ? 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) 
[ 158.662571][ T1296] ? 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) 
[ 158.662872][ T1296] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 158.663187][ T1296] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 158.663506][ T1296] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  158.663895][ T1296] RIP: 0033:0x7fccff9131e7
[ 158.664234][ T1296] 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)
[  158.665336][ T1296] RSP: 002b:00007fff062d3418 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  158.665809][ T1296] RAX: ffffffffffffffda RBX: 00007fff062d3b50 RCX: 00007fccff9131e7
[  158.666275][ T1296] RDX: 0000000000000000 RSI: 00007fff062d3480 RDI: 0000000000000005
[  158.666740][ T1296] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  158.667196][ T1296] R10: 00007fccff9a1ac0 R11: 0000000000000246 R12: 00007fff062d3b88
[  158.667662][ T1296] R13: 00000000686e5499 R14: 0000000000499600 R15: 00007fff062d3570
| [  174.447057][   T67] ------------[ cut here ]------------
| [ 174.447417][ T67] WARNING: CPU: 0 PID: 67 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) 
| [  174.447953][   T67] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  174.449192][   T67] Tainted: [W]=WARN
[  174.449430][   T67] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  174.449818][   T67] Workqueue: netns cleanup_net
[ 174.450141][ T67] 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) 
[ 174.450479][ T67] 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
[  174.451610][   T67] RSP: 0018:ffffc900004875b0 EFLAGS: 00010246
[  174.452004][   T67] RAX: 0000000000000000 RBX: ffff88800def2000 RCX: 0000000000000001
[  174.452496][   T67] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[  174.452961][   T67] RBP: ffffc90000487698 R08: 0000000000000000 R09: 0000000000000000
[  174.453440][   T67] R10: ffffc900004876c8 R11: ffffffff9238d1e0 R12: 1ffff92000090eba
[  174.453923][   T67] R13: 00000000000005dc R14: ffffc900004876c8 R15: ffff88800def2f48
[  174.454408][   T67] FS:  0000000000000000(0000) GS:ffff8880d8f99000(0000) knlGS:0000000000000000
[  174.454944][   T67] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  174.455351][   T67] CR2: 00007ffc8666dfc8 CR3: 000000000d27f002 CR4: 0000000000772ef0
[  174.455815][   T67] PKRU: 55555554
[  174.456044][   T67] Call Trace:
[  174.456282][   T67]  <TASK>
[ 174.456457][ T67] ? __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) 
[ 174.456850][ T67] ? br_del_if (net/bridge/br_if.c:742) 
[ 174.457084][ T67] ? br_device_event (net/bridge/br.c:141) 
[ 174.457415][ T67] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 174.457729][ T67] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 174.458035][ T67] ? cleanup_net (net/core/net_namespace.c:684) 
[ 174.458362][ T67] ? process_one_work (kernel/workqueue.c:3238) 
[ 174.458680][ T67] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 174.458985][ T67] ? kthread (kernel/kthread.c:464) 
[ 174.459226][ T67] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 174.459548][ T67] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 174.459859][ T67] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 174.460168][ T67] netif_set_mtu (net/core/dev.c:9652) 
[ 174.460498][ T67] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 174.460821][ T67] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 174.461054][ T67] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 174.461377][ T67] br_del_if (net/bridge/br_if.c:743) 
[ 174.461631][ T67] br_device_event (net/bridge/br.c:141) 
[ 174.461938][ T67] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 174.462265][ T67] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 174.462602][ T67] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 174.462994][ T67] ? 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) 
[ 174.463310][ T67] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 174.463705][ T67] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 174.464093][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 174.464497][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 174.464883][ T67] default_device_exit_batch (net/core/dev.c:12673) 
[ 174.465208][ T67] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 174.465607][ T67] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 174.465921][ T67] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 174.466232][ T67] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 174.466559][ T67] cleanup_net (net/core/net_namespace.c:684) 
[ 174.466871][ T67] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 174.467187][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 174.467498][ T67] process_one_work (kernel/workqueue.c:3238) 
[ 174.467834][ T67] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 174.468152][ T67] ? assign_work (kernel/workqueue.c:1200) 
[ 174.468469][ T67] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 174.468800][ T67] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 174.469105][ T67] kthread (kernel/kthread.c:464) 
[ 174.469343][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 174.469665][ T67] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 174.469974][ T67] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 174.470291][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 174.470610][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 174.470917][ T67] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 174.471228][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 174.471533][ T67] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  174.902596][   T67] ------------[ cut here ]------------
| [ 174.902900][ T67] WARNING: CPU: 0 PID: 67 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) 
| [  174.903457][   T67] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  174.904672][   T67] Tainted: [W]=WARN
[  174.904908][   T67] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  174.905317][   T67] Workqueue: netns cleanup_net
[ 174.905652][ T67] 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) 
[ 174.905967][ T67] 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
[  174.907071][   T67] RSP: 0018:ffffc900004875b0 EFLAGS: 00010246
[  174.907472][   T67] RAX: 0000000000000000 RBX: ffff888005b82000 RCX: 0000000000000001
[  174.907943][   T67] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[  174.908405][   T67] RBP: ffffc90000487698 R08: 0000000000000000 R09: 0000000000000000
[  174.908872][   T67] R10: ffffc900004876c8 R11: ffffffff9238d1e0 R12: 1ffff92000090eba
[  174.909338][   T67] R13: 00000000000005dc R14: ffffc900004876c8 R15: ffff888005b82f48
[  174.909803][   T67] FS:  0000000000000000(0000) GS:ffff8880d8f99000(0000) knlGS:0000000000000000
[  174.910341][   T67] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  174.910742][   T67] CR2: 00005623a5d4c9c8 CR3: 000000004f74a004 CR4: 0000000000772ef0
[  174.911215][   T67] PKRU: 55555554
[  174.911444][   T67] Call Trace:
[  174.911686][   T67]  <TASK>
[ 174.911840][ T67] ? __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) 
[ 174.912228][ T67] ? br_del_if (net/bridge/br_if.c:742) 
[ 174.912459][ T67] ? br_device_event (net/bridge/br.c:141) 
[ 174.912776][ T67] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 174.913084][ T67] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 174.913394][ T67] ? cleanup_net (net/core/net_namespace.c:684) 
[ 174.913721][ T67] ? process_one_work (kernel/workqueue.c:3238) 
[ 174.914040][ T67] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 174.914350][ T67] ? kthread (kernel/kthread.c:464) 
[ 174.914579][ T67] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 174.914895][ T67] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 174.915211][ T67] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 174.915525][ T67] netif_set_mtu (net/core/dev.c:9652) 
[ 174.915842][ T67] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 174.916180][ T67] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 174.916413][ T67] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 174.916726][ T67] br_del_if (net/bridge/br_if.c:743) 
[ 174.916958][ T67] br_device_event (net/bridge/br.c:141) 
[ 174.917271][ T67] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 174.917585][ T67] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 174.917906][ T67] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 174.918301][ T67] ? 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) 
[ 174.918615][ T67] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 174.919009][ T67] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 174.919397][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 174.919786][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 174.920184][ T67] default_device_exit_batch (net/core/dev.c:12673) 
[ 174.920490][ T67] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 174.920895][ T67] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 174.921212][ T67] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 174.921510][ T67] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 174.921831][ T67] cleanup_net (net/core/net_namespace.c:684) 
[ 174.922140][ T67] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 174.922457][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 174.922768][ T67] process_one_work (kernel/workqueue.c:3238) 
[ 174.923098][ T67] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 174.923424][ T67] ? assign_work (kernel/workqueue.c:1200) 
[ 174.923737][ T67] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 174.924074][ T67] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 174.924388][ T67] kthread (kernel/kthread.c:464) 
[ 174.924622][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 174.924939][ T67] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 174.925249][ T67] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 174.925551][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 174.925881][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 174.926207][ T67] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 174.926509][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 174.926810][ T67] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  185.904592][ T1533] ------------[ cut here ]------------
| [ 185.904907][ T1533] WARNING: CPU: 0 PID: 1533 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  185.905560][ T1533] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  185.906697][ T1533] Tainted: [W]=WARN
[  185.906933][ T1533] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 185.907358][ T1533] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 185.907684][ T1533] 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
[  185.908823][ T1533] RSP: 0018:ffffc900031c6ef0 EFLAGS: 00010246
[  185.909244][ T1533] RAX: 0000000000000000 RBX: ffff88800ee32000 RCX: 0000000000000001
[  185.909710][ T1533] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[  185.910204][ T1533] RBP: ffffc900031c6fd8 R08: 0000000000000000 R09: 0000000000000000
[  185.910676][ T1533] R10: ffffc900031c7008 R11: ffffffff9238d1e0 R12: 1ffff92000638de2
[  185.911154][ T1533] R13: 00000000000005dc R14: ffffc900031c7008 R15: ffff88800ee32f48
[  185.911631][ T1533] FS:  00007f6925560800(0000) GS:ffff8880d8f99000(0000) knlGS:0000000000000000
[  185.912204][ T1533] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  185.912599][ T1533] CR2: 00000000004e6888 CR3: 0000000010202006 CR4: 0000000000772ef0
[  185.913073][ T1533] PKRU: 55555554
[  185.913330][ T1533] Call Trace:
[  185.913564][ T1533]  <TASK>
[ 185.913730][ T1533] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 185.914061][ T1533] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 185.914412][ T1533] netif_set_mtu (net/core/dev.c:9652) 
[ 185.914725][ T1533] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 185.915053][ T1533] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 185.915312][ T1533] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 185.915631][ T1533] br_add_if (net/bridge/br_if.c:697) 
[ 185.915879][ T1533] do_set_master (net/core/rtnetlink.c:2948) 
[ 185.916204][ T1533] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 185.916532][ T1533] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 185.916849][ T1533] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 185.917265][ T1533] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 185.917575][ T1533] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 185.917884][ T1533] ? __kernel_text_address (kernel/extable.c:79) 
[ 185.918211][ T1533] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 185.918544][ T1533] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 185.918856][ T1533] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 185.919255][ T1533] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 185.919584][ T1533] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 185.919892][ T1533] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 185.920210][ T1533] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 185.920540][ T1533] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 185.920853][ T1533] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 185.921159][ T1533] ? __create_object (mm/kmemleak.c:771) 
[ 185.921497][ T1533] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 185.921809][ T1533] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 185.922118][ T1533] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 185.922521][ T1533] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 185.922838][ T1533] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 185.923158][ T1533] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 185.923492][ T1533] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 185.923809][ T1533] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 185.924128][ T1533] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 185.924461][ T1533] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 185.924775][ T1533] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 185.925085][ T1533] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 185.925423][ T1533] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 185.925746][ T1533] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 185.926059][ T1533] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 185.926377][ T1533] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 185.926706][ T1533] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 185.927026][ T1533] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 185.927342][ T1533] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 185.927669][ T1533] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 185.927985][ T1533] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 185.928303][ T1533] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 185.928632][ T1533] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 185.928946][ T1533] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 185.929281][ T1533] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 185.929614][ T1533] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 185.929926][ T1533] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 185.930251][ T1533] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 185.930667][ T1533] ___sys_sendmsg (net/socket.c:2670) 
[ 185.930974][ T1533] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 185.931289][ T1533] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 185.931689][ T1533] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 185.932005][ T1533] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 185.932326][ T1533] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 185.932657][ T1533] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 185.932965][ T1533] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 185.933285][ T1533] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 185.933619][ T1533] __sys_sendmsg (net/socket.c:2700) 
[ 185.933936][ T1533] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 185.934329][ T1533] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 185.934669][ T1533] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 185.934984][ T1533] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 185.935310][ T1533] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  185.935706][ T1533] RIP: 0033:0x7f692572d1e7
[ 185.936024][ T1533] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  185.937151][ T1533] RSP: 002b:00007ffe5b4bb8b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  185.937640][ T1533] RAX: ffffffffffffffda RBX: 00007ffe5b4bbff0 RCX: 00007f692572d1e7
[  185.938112][ T1533] RDX: 0000000000000000 RSI: 00007ffe5b4bb920 RDI: 0000000000000005
[  185.938583][ T1533] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  185.939060][ T1533] R10: 000000000b65e910 R11: 0000000000000246 R12: 0000000000000005
[  185.939536][ T1533] R13: 00000000686e54b4 R14: 0000000000499600 R15: 0000000000000000
| [  186.302076][ T1536] ------------[ cut here ]------------
| [ 186.302402][ T1536] WARNING: CPU: 3 PID: 1536 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) 
| [  186.303028][ T1536] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  186.304187][ T1536] Tainted: [W]=WARN
[  186.304433][ T1536] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 186.304828][ T1536] 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) 
[ 186.305151][ T1536] 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
[  186.306625][ T1536] RSP: 0018:ffffc900031f7080 EFLAGS: 00010246
[  186.307023][ T1536] RAX: 0000000000000000 RBX: ffff88800ee32000 RCX: 0000000000000001
[  186.307503][ T1536] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[  186.307977][ T1536] RBP: ffffc900031f7168 R08: 0000000000000000 R09: 0000000000000000
[  186.308471][ T1536] R10: ffffc900031f7198 R11: ffffffff9238d1e0 R12: 1ffff9200063ee14
[  186.308951][ T1536] R13: 00000000000005dc R14: ffffc900031f7198 R15: ffff88800ee32f48
[  186.309433][ T1536] FS:  00007f5b2f5e7800(0000) GS:ffff8880d9119000(0000) knlGS:0000000000000000
[  186.309989][ T1536] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  186.310394][ T1536] CR2: 000000000043d940 CR3: 0000000009e30002 CR4: 0000000000772ef0
[  186.310871][ T1536] PKRU: 55555554
[  186.311112][ T1536] Call Trace:
[  186.311358][ T1536]  <TASK>
[ 186.311524][ T1536] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 186.311841][ T1536] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 186.312192][ T1536] netif_set_mtu (net/core/dev.c:9652) 
[ 186.312517][ T1536] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 186.312847][ T1536] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 186.313091][ T1536] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 186.313445][ T1536] br_add_if (net/bridge/br_if.c:697) 
[ 186.313698][ T1536] do_set_master (net/core/rtnetlink.c:2948) 
[ 186.314021][ T1536] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 186.314350][ T1536] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 186.314671][ T1536] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 186.314984][ T1536] ? __dev_get_by_name (net/core/dev.c:865) 
[ 186.315310][ T1536] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 186.315628][ T1536] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 186.315953][ T1536] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 186.316283][ T1536] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 186.316611][ T1536] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 186.316937][ T1536] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 186.317264][ T1536] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 186.317593][ T1536] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 186.317908][ T1536] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 186.318242][ T1536] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 186.318560][ T1536] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 186.318877][ T1536] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 186.319205][ T1536] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 186.319526][ T1536] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 186.319844][ T1536] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 186.320163][ T1536] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 186.320505][ T1536] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 186.320827][ T1536] ? 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) 
[ 186.321142][ T1536] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 186.321470][ T1536] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 186.321787][ T1536] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 186.322109][ T1536] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 186.322436][ T1536] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 186.322753][ T1536] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 186.323080][ T1536] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 186.323406][ T1536] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 186.323721][ T1536] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 186.324136][ T1536] ___sys_sendmsg (net/socket.c:2670) 
[ 186.324469][ T1536] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 186.324787][ T1536] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 186.325109][ T1536] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 186.325445][ T1536] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 186.325766][ T1536] ? __handle_mm_fault (mm/memory.c:6212) 
[ 186.326081][ T1536] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 186.326404][ T1536] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 186.326741][ T1536] __sys_sendmsg (net/socket.c:2700) 
[ 186.327057][ T1536] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 186.327384][ T1536] ? 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) 
[ 186.327710][ T1536] ? 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) 
[ 186.328028][ T1536] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 186.328365][ T1536] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 186.328685][ T1536] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  186.329074][ T1536] RIP: 0033:0x7f5b2f7b41e7
[ 186.329412][ T1536] 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)
[  186.330549][ T1536] RSP: 002b:00007ffd322d66d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  186.331023][ T1536] RAX: ffffffffffffffda RBX: 00007ffd322d6e10 RCX: 00007f5b2f7b41e7
[  186.331504][ T1536] RDX: 0000000000000000 RSI: 00007ffd322d6740 RDI: 0000000000000005
[  186.331984][ T1536] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  186.332475][ T1536] R10: 00007f5b2f842ac0 R11: 0000000000000246 R12: 00007ffd322d6e48
[  186.332953][ T1536] R13: 00000000686e54b4 R14: 0000000000499600 R15: 00007ffd322d6830
| [  188.275776][ T1553] ------------[ cut here ]------------
| [ 188.276109][ T1553] WARNING: CPU: 2 PID: 1553 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) 
| [  188.276718][ T1553] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  188.277809][ T1553] Tainted: [W]=WARN
[  188.278043][ T1553] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 188.278429][ T1553] 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) 
[ 188.278744][ T1553] 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
[  188.279816][ T1553] RSP: 0018:ffffc90003276ef0 EFLAGS: 00010246
[  188.280209][ T1553] RAX: 0000000000000000 RBX: ffff88800c93a000 RCX: 0000000000000001
[  188.280660][ T1553] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[  188.281113][ T1553] RBP: ffffc90003276fd8 R08: 0000000000000000 R09: 0000000000000000
[  188.281575][ T1553] R10: ffffc90003277008 R11: ffffffff9238d1e0 R12: 1ffff9200064ede2
[  188.282030][ T1553] R13: 00000000000005dc R14: ffffc90003277008 R15: ffff88800c93af48
[  188.282488][ T1553] FS:  00007f0cb5fd4800(0000) GS:ffff8880d9099000(0000) knlGS:0000000000000000
[  188.283017][ T1553] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  188.283409][ T1553] CR2: 00000000004e6888 CR3: 000000000c493002 CR4: 0000000000772ef0
[  188.283869][ T1553] PKRU: 55555554
[  188.284105][ T1553] Call Trace:
[  188.284344][ T1553]  <TASK>
[ 188.284512][ T1553] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 188.284819][ T1553] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 188.285139][ T1553] netif_set_mtu (net/core/dev.c:9652) 
[ 188.285459][ T1553] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 188.285779][ T1553] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 188.286017][ T1553] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 188.286335][ T1553] br_add_if (net/bridge/br_if.c:697) 
[ 188.286583][ T1553] do_set_master (net/core/rtnetlink.c:2948) 
[ 188.286887][ T1553] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 188.287204][ T1553] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 188.287520][ T1553] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 188.287905][ T1553] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 188.288219][ T1553] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 188.288524][ T1553] ? __kernel_text_address (kernel/extable.c:79) 
[ 188.288829][ T1553] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 188.289141][ T1553] ? __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) 
[ 188.289471][ T1553] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 188.289854][ T1553] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 188.290160][ T1553] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 188.290473][ T1553] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 188.290778][ T1553] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 188.291088][ T1553] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 188.291404][ T1553] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 188.291708][ T1553] ? __create_object (mm/kmemleak.c:771) 
[ 188.292017][ T1553] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 188.292338][ T1553] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 188.292649][ T1553] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 188.293023][ T1553] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 188.293346][ T1553] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 188.293656][ T1553] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 188.293984][ T1553] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 188.294309][ T1553] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 188.294622][ T1553] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 188.294925][ T1553] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 188.295244][ T1553] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 188.295550][ T1553] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 188.295858][ T1553] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 188.296169][ T1553] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 188.296492][ T1553] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 188.296806][ T1553] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 188.297120][ T1553] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 188.297446][ T1553] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 188.297752][ T1553] ? 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) 
[ 188.298062][ T1553] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 188.298380][ T1553] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 188.298686][ T1553] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 188.298998][ T1553] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 188.299319][ T1553] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 188.299627][ T1553] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 188.299940][ T1553] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 188.300261][ T1553] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 188.300565][ T1553] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 188.300957][ T1553] ___sys_sendmsg (net/socket.c:2670) 
[ 188.301268][ T1553] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 188.301578][ T1553] ? __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) 
[ 188.301957][ T1553] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 188.302277][ T1553] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 188.302585][ T1553] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 188.302896][ T1553] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 188.303213][ T1553] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 188.303518][ T1553] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 188.303838][ T1553] __sys_sendmsg (net/socket.c:2700) 
[ 188.304147][ T1553] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 188.304532][ T1553] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 188.304853][ T1553] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 188.305161][ T1553] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 188.305477][ T1553] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  188.305855][ T1553] RIP: 0033:0x7f0cb61a11e7
[ 188.306181][ T1553] 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)
[  188.307244][ T1553] RSP: 002b:00007ffc3679cb68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  188.307699][ T1553] RAX: ffffffffffffffda RBX: 00007ffc3679d2a0 RCX: 00007f0cb61a11e7
[  188.308155][ T1553] RDX: 0000000000000000 RSI: 00007ffc3679cbd0 RDI: 0000000000000005
[  188.308837][ T1553] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  188.309300][ T1553] R10: 00000000173bf910 R11: 0000000000000246 R12: 0000000000000005
[  188.309754][ T1553] R13: 00000000686e54b6 R14: 0000000000499600 R15: 0000000000000000
| [  188.668345][ T1556] ------------[ cut here ]------------
| [ 188.668652][ T1556] WARNING: CPU: 1 PID: 1556 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) 
| [  188.669268][ T1556] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  188.670357][ T1556] Tainted: [W]=WARN
[  188.670591][ T1556] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 188.670965][ T1556] 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) 
[ 188.671282][ T1556] 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
[  188.672367][ T1556] RSP: 0018:ffffc90003297080 EFLAGS: 00010246
[  188.672749][ T1556] RAX: 0000000000000000 RBX: ffff88800c93a000 RCX: 0000000000000001
[  188.673213][ T1556] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[  188.673679][ T1556] RBP: ffffc90003297168 R08: 0000000000000000 R09: 0000000000000000
[  188.674135][ T1556] R10: ffffc90003297198 R11: ffffffff9238d1e0 R12: 1ffff92000652e14
[  188.675613][ T1556] R13: 00000000000005dc R14: ffffc90003297198 R15: ffff88800c93af48
[  188.676066][ T1556] FS:  00007f12c5990800(0000) GS:ffff8880d9019000(0000) knlGS:0000000000000000
[  188.676605][ T1556] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  188.676984][ T1556] CR2: 00007f12c5a90130 CR3: 00000000128fd004 CR4: 0000000000772ef0
[  188.677456][ T1556] PKRU: 55555554
[  188.677684][ T1556] Call Trace:
[  188.677917][ T1556]  <TASK>
[ 188.678074][ T1556] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 188.678385][ T1556] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 188.678707][ T1556] netif_set_mtu (net/core/dev.c:9652) 
[ 188.679008][ T1556] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 188.679333][ T1556] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 188.679562][ T1556] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 188.679868][ T1556] br_add_if (net/bridge/br_if.c:697) 
[ 188.680107][ T1556] do_set_master (net/core/rtnetlink.c:2948) 
[ 188.680414][ T1556] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 188.680717][ T1556] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 188.681027][ T1556] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 188.681345][ T1556] ? __dev_get_by_name (net/core/dev.c:865) 
[ 188.681648][ T1556] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 188.681947][ T1556] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 188.682261][ T1556] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 188.682560][ T1556] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 188.682866][ T1556] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 188.683190][ T1556] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 188.683498][ T1556] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 188.683815][ T1556] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 188.684122][ T1556] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 188.684437][ T1556] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 188.684748][ T1556] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 188.685050][ T1556] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 188.685373][ T1556] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 188.685693][ T1556] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 188.685993][ T1556] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 188.686308][ T1556] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 188.686623][ T1556] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 188.686924][ T1556] ? 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) 
[ 188.687235][ T1556] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 188.687539][ T1556] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 188.687843][ T1556] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 188.688149][ T1556] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 188.688460][ T1556] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 188.688762][ T1556] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 188.689071][ T1556] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 188.689391][ T1556] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 188.689693][ T1556] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 188.690086][ T1556] ___sys_sendmsg (net/socket.c:2670) 
[ 188.690395][ T1556] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 188.690697][ T1556] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 188.691001][ T1556] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 188.691306][ T1556] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 188.691612][ T1556] ? __handle_mm_fault (mm/memory.c:6212) 
[ 188.691911][ T1556] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 188.692221][ T1556] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 188.692545][ T1556] __sys_sendmsg (net/socket.c:2700) 
[ 188.692845][ T1556] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 188.693143][ T1556] ? 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) 
[ 188.693464][ T1556] ? 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) 
[ 188.693768][ T1556] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 188.694079][ T1556] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 188.694397][ T1556] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  188.694770][ T1556] RIP: 0033:0x7f12c5b5d1e7
[ 188.695078][ T1556] 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)
[  188.696155][ T1556] RSP: 002b:00007ffea0e54408 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  188.696621][ T1556] RAX: ffffffffffffffda RBX: 00007ffea0e54b40 RCX: 00007f12c5b5d1e7
[  188.697071][ T1556] RDX: 0000000000000000 RSI: 00007ffea0e54470 RDI: 0000000000000005
[  188.697536][ T1556] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  188.697987][ T1556] R10: 00007f12c5bebac0 R11: 0000000000000246 R12: 00007ffea0e54b78
[  188.698448][ T1556] R13: 00000000686e54b7 R14: 0000000000499600 R15: 00007ffea0e54560
| [  204.534467][   T67] ------------[ cut here ]------------
| [ 204.534827][ T67] WARNING: CPU: 1 PID: 67 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) 
| [  204.535343][   T67] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  204.536523][   T67] Tainted: [W]=WARN
[  204.536745][   T67] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  204.537108][   T67] Workqueue: netns cleanup_net
[ 204.537420][ T67] 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) 
[ 204.537718][ T67] 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
[  204.538766][   T67] RSP: 0018:ffffc900004875b0 EFLAGS: 00010246
[  204.539135][   T67] RAX: 0000000000000000 RBX: ffff88800ee32000 RCX: 0000000000000001
[  204.539577][   T67] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[  204.540014][   T67] RBP: ffffc90000487698 R08: 0000000000000000 R09: 0000000000000000
[  204.540453][   T67] R10: ffffc900004876c8 R11: ffffffff9238d1e0 R12: 1ffff92000090eba
[  204.540884][   T67] R13: 00000000000005dc R14: ffffc900004876c8 R15: ffff88800ee32f48
[  204.541325][   T67] FS:  0000000000000000(0000) GS:ffff8880d9019000(0000) knlGS:0000000000000000
[  204.541828][   T67] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  204.542206][   T67] CR2: 00005623a5d61b10 CR3: 000000000f151001 CR4: 0000000000772ef0
[  204.542643][   T67] PKRU: 55555554
[  204.542863][   T67] Call Trace:
[  204.543080][   T67]  <TASK>
[ 204.543232][ T67] ? __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) 
[ 204.543591][ T67] ? br_del_if (net/bridge/br_if.c:742) 
[ 204.543809][ T67] ? br_device_event (net/bridge/br.c:141) 
[ 204.544107][ T67] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 204.544407][ T67] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 204.544696][ T67] ? cleanup_net (net/core/net_namespace.c:684) 
[ 204.544984][ T67] ? process_one_work (kernel/workqueue.c:3238) 
[ 204.545277][ T67] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 204.545565][ T67] ? kthread (kernel/kthread.c:464) 
[ 204.545784][ T67] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 204.546072][ T67] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 204.546373][ T67] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 204.546674][ T67] netif_set_mtu (net/core/dev.c:9652) 
[ 204.546961][ T67] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 204.547273][ T67] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 204.547494][ T67] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 204.547789][ T67] br_del_if (net/bridge/br_if.c:743) 
[ 204.548007][ T67] br_device_event (net/bridge/br.c:141) 
[ 204.548304][ T67] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 204.548603][ T67] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 204.548897][ T67] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 204.549267][ T67] ? 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) 
[ 204.549561][ T67] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 204.549918][ T67] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 204.550280][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 204.550636][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 204.551001][ T67] default_device_exit_batch (net/core/dev.c:12673) 
[ 204.551298][ T67] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 204.551676][ T67] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 204.551970][ T67] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 204.552264][ T67] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 204.552558][ T67] cleanup_net (net/core/net_namespace.c:684) 
[ 204.552847][ T67] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 204.553137][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 204.553436][ T67] process_one_work (kernel/workqueue.c:3238) 
[ 204.553738][ T67] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 204.554048][ T67] ? assign_work (kernel/workqueue.c:1200) 
[ 204.554348][ T67] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 204.554647][ T67] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 204.554947][ T67] kthread (kernel/kthread.c:464) 
[ 204.555168][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 204.555467][ T67] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 204.555756][ T67] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 204.556050][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 204.556347][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 204.556635][ T67] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 204.556921][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 204.557214][ T67] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  204.936822][   T67] ------------[ cut here ]------------
| [ 204.937132][ T67] WARNING: CPU: 3 PID: 67 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) 
| [  204.937651][   T67] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  204.938828][   T67] Tainted: [W]=WARN
[  204.939058][   T67] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  204.939476][   T67] Workqueue: netns cleanup_net
[ 204.939796][ T67] 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) 
[ 204.940105][ T67] 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
[  204.941158][   T67] RSP: 0018:ffffc900004875b0 EFLAGS: 00010246
[  204.941543][   T67] RAX: 0000000000000000 RBX: ffff88800c93a000 RCX: 0000000000000001
[  204.941979][   T67] RDX: 0000000000000000 RSI: ffffffff91910759 RDI: ffffffff91058280
[  204.942420][   T67] RBP: ffffc90000487698 R08: 0000000000000000 R09: 0000000000000000
[  204.942853][   T67] R10: ffffc900004876c8 R11: ffffffff9238d1e0 R12: 1ffff92000090eba
[  204.943326][   T67] R13: 00000000000005dc R14: ffffc900004876c8 R15: ffff88800c93af48
[  204.943808][   T67] FS:  0000000000000000(0000) GS:ffff8880d9119000(0000) knlGS:0000000000000000
[  204.944338][   T67] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  204.944703][   T67] CR2: 00007ffe34817c98 CR3: 000000004f74a002 CR4: 0000000000772ef0
[  204.945141][   T67] PKRU: 55555554
[  204.945370][   T67] Call Trace:
[  204.945587][   T67]  <TASK>
[ 204.945733][ T67] ? __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) 
[ 204.946100][ T67] ? br_del_if (net/bridge/br_if.c:742) 
[ 204.946332][ T67] ? br_device_event (net/bridge/br.c:141) 
[ 204.946620][ T67] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 204.946914][ T67] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 204.947245][ T67] ? cleanup_net (net/core/net_namespace.c:684) 
[ 204.947538][ T67] ? process_one_work (kernel/workqueue.c:3238) 
[ 204.947846][ T67] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 204.948157][ T67] ? kthread (kernel/kthread.c:464) 
[ 204.948391][ T67] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 204.948684][ T67] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 204.948981][ T67] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 204.949291][ T67] netif_set_mtu (net/core/dev.c:9652) 
[ 204.949579][ T67] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 204.949884][ T67] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 204.950104][ T67] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 204.950415][ T67] br_del_if (net/bridge/br_if.c:743) 
[ 204.950638][ T67] br_device_event (net/bridge/br.c:141) 
[ 204.950926][ T67] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 204.951231][ T67] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 204.951556][ T67] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 204.951922][ T67] ? 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) 
[ 204.952229][ T67] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 204.952595][ T67] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 204.952996][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 204.953381][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 204.953752][ T67] default_device_exit_batch (net/core/dev.c:12673) 
[ 204.954051][ T67] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 204.954427][ T67] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 204.954724][ T67] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 204.955015][ T67] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 204.955344][ T67] cleanup_net (net/core/net_namespace.c:684) 
[ 204.955641][ T67] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 204.955943][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 204.956245][ T67] process_one_work (kernel/workqueue.c:3238) 
[ 204.956548][ T67] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 204.956846][ T67] ? assign_work (kernel/workqueue.c:1200) 
[ 204.957145][ T67] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 204.957451][ T67] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 204.957746][ T67] kthread (kernel/kthread.c:464) 
[ 204.957963][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 204.958259][ T67] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 204.958551][ T67] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 204.958845][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 204.959135][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 204.959465][ T67] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 204.959758][ T67] ? __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