======================================
| [   26.316343][  T332] swp1: entered promiscuous mode
| [   26.323708][  T332] ------------[ cut here ]------------
| [ 26.324254][ T332] WARNING: CPU: 0 PID: 332 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   26.325146][  T332] Modules linked in:
[   26.326697][  T332] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 26.327295][ T332] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 26.327759][ T332] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   26.329400][  T332] RSP: 0018:ffffc90000f96ef0 EFLAGS: 00010246
[   26.329950][  T332] RAX: 0000000000000000 RBX: ffff888004fca000 RCX: 0000000000000001
[   26.330674][  T332] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[   26.331340][  T332] RBP: ffffc90000f96fd8 R08: 0000000000000000 R09: 0000000000000000
[   26.332027][  T332] R10: ffffc90000f97008 R11: ffffffff9998d1e0 R12: 1ffff920001f2de2
[   26.332703][  T332] R13: 00000000000005dc R14: ffffc90000f97008 R15: ffff888004fcaf48
[   26.333374][  T332] FS:  00007f862e4b9800(0000) GS:ffff8880d1999000(0000) knlGS:0000000000000000
[   26.334169][  T332] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.334734][  T332] CR2: 00000000004e6888 CR3: 000000000f239001 CR4: 0000000000772ef0
[   26.335386][  T332] PKRU: 55555554
[   26.335746][  T332] Call Trace:
[   26.336129][  T332]  <TASK>
[ 26.336386][ T332] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 26.336844][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.337337][ T332] netif_set_mtu (net/core/dev.c:9652) 
[ 26.337783][ T332] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 26.338313][ T332] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 26.338641][ T332] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 26.339089][ T332] br_add_if (net/bridge/br_if.c:697) 
[ 26.339432][ T332] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 26.339848][ T332] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 26.340289][ T332] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 26.340735][ T332] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 26.341297][ T332] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 26.341740][ T332] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 26.342183][ T332] ? __kernel_text_address (kernel/extable.c:79) 
[ 26.342612][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.343042][ T332] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 26.343480][ T332] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 26.343990][ T332] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.344423][ T332] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.344835][ T332] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 26.345237][ T332] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 26.345655][ T332] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.346126][ T332] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 26.346601][ T332] ? __create_object (mm/kmemleak.c:771) 
[ 26.347102][ T332] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 26.347565][ T332] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 26.348033][ T332] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 26.348608][ T332] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 26.349032][ T332] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 26.349480][ T332] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 26.349881][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.350332][ T332] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.350749][ T332] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 26.351189][ T332] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.351640][ T332] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 26.352050][ T332] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 26.352469][ T332] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 26.352890][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.353309][ T332] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 26.353710][ T332] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 26.354141][ T332] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 26.354568][ T332] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 26.354970][ T332] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 26.355390][ T332] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 26.355824][ T332] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 26.356250][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.356668][ T332] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 26.357096][ T332] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 26.357559][ T332] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 26.358111][ T332] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 26.358564][ T332] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 26.359048][ T332] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 26.359688][ T332] ___sys_sendmsg (net/socket.c:2670) 
[ 26.360108][ T332] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 26.360501][ T332] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 26.361028][ T332] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 26.361464][ T332] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.361881][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.362313][ T332] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.362709][ T332] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 26.363116][ T332] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.363527][ T332] __sys_sendmsg (net/socket.c:2700) 
[ 26.363920][ T332] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 26.364741][ T332] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 26.365161][ T332] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.365565][ T332] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 26.366259][ T332] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   26.366751][  T332] RIP: 0033:0x7f862e6861e7
[ 26.367167][ T332] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   26.368966][  T332] RSP: 002b:00007ffc95095228 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   26.369578][  T332] RAX: ffffffffffffffda RBX: 00007ffc95095960 RCX: 00007f862e6861e7
[   26.370520][  T332] RDX: 0000000000000000 RSI: 00007ffc95095290 RDI: 0000000000000005
[   26.371154][  T332] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   26.371792][  T332] R10: 000000001798d910 R11: 0000000000000246 R12: 0000000000000005
[   26.372819][  T332] R13: 00000000686e7de4 R14: 0000000000499600 R15: 0000000000000000
| [   27.074241][  T335] ------------[ cut here ]------------
| [ 27.074937][ T335] WARNING: CPU: 2 PID: 335 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   27.076138][  T335] Modules linked in: vxlan
| [   27.078047][  T335] Tainted: [W]=WARN
[   27.078553][  T335] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 27.079346][ T335] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 27.079973][ T335] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   27.082129][  T335] RSP: 0018:ffffc90000fb7080 EFLAGS: 00010246
[   27.082880][  T335] RAX: 0000000000000000 RBX: ffff888004fca000 RCX: 0000000000000001
[   27.084062][  T335] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[   27.085230][  T335] RBP: ffffc90000fb7168 R08: 0000000000000000 R09: 0000000000000000
[   27.086130][  T335] R10: ffffc90000fb7198 R11: ffffffff9998d1e0 R12: 1ffff920001f6e14
[   27.087013][  T335] R13: 00000000000005dc R14: ffffc90000fb7198 R15: ffff888004fcaf48
[   27.087940][  T335] FS:  00007f444b9d2800(0000) GS:ffff8880d1a99000(0000) knlGS:0000000000000000
[   27.088976][  T335] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.089717][  T335] CR2: 00007fc98175b000 CR3: 000000000e48b001 CR4: 0000000000772ef0
[   27.090631][  T335] PKRU: 55555554
[   27.091114][  T335] Call Trace:
[   27.091595][  T335]  <TASK>
[ 27.091908][ T335] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 27.092522][ T335] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.093153][ T335] netif_set_mtu (net/core/dev.c:9652) 
[ 27.093748][ T335] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 27.094414][ T335] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 27.095220][ T335] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 27.095827][ T335] br_add_if (net/bridge/br_if.c:697) 
[ 27.096334][ T335] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 27.096910][ T335] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 27.097519][ T335] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 27.098149][ T335] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 27.098737][ T335] ? __dev_get_by_name (net/core/dev.c:865) 
[ 27.099353][ T335] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 27.099929][ T335] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 27.100553][ T335] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 27.101168][ T335] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 27.101797][ T335] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 27.102435][ T335] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 27.103047][ T335] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 27.103684][ T335] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 27.104300][ T335] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 27.104895][ T335] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 27.105492][ T335] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 27.106100][ T335] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 27.106680][ T335] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.107312][ T335] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 27.107912][ T335] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 27.108540][ T335] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 27.109179][ T335] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 27.109767][ T335] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 27.110382][ T335] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 27.110980][ T335] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 27.111595][ T335] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.111961][ T335] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 27.112329][ T335] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 27.112674][ T335] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 27.113034][ T335] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 27.113395][ T335] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 27.113748][ T335] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 27.114201][ T335] ___sys_sendmsg (net/socket.c:2670) 
[ 27.114554][ T335] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 27.114900][ T335] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 27.115264][ T335] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 27.115618][ T335] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 27.115967][ T335] ? __handle_mm_fault (mm/memory.c:6212) 
[ 27.116330][ T335] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 27.116674][ T335] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 27.117036][ T335] __sys_sendmsg (net/socket.c:2700) 
[ 27.117393][ T335] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 27.117740][ T335] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 27.118117][ T335] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 27.118467][ T335] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 27.118815][ T335] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 27.119173][ T335] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   27.119596][  T335] RIP: 0033:0x7f444bb9f1e7
[ 27.119956][ T335] Code: Unable to access opcode bytes at 0x7f444bb9f1bd.

Code starting with the faulting instruction
===========================================
[   27.120419][  T335] RSP: 002b:00007ffe4c4e5ef8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   27.120951][  T335] RAX: ffffffffffffffda RBX: 00007ffe4c4e6630 RCX: 00007f444bb9f1e7
[   27.121504][  T335] RDX: 0000000000000000 RSI: 00007ffe4c4e5f60 RDI: 0000000000000005
[   27.122031][  T335] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   27.122570][  T335] R10: 00007f444bc2dac0 R11: 0000000000000246 R12: 00007ffe4c4e6668
[   27.123121][  T335] R13: 00000000686e7de5 R14: 0000000000499600 R15: 00007ffe4c4e6050
| [   29.906545][  T354] ------------[ cut here ]------------
| [ 29.907006][ T354] WARNING: CPU: 2 PID: 354 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) 
| [   29.907697][  T354] Modules linked in: vxlan
| [   29.908809][  T354] Tainted: [W]=WARN
[   29.909120][  T354] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 29.909613][ T354] 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) 
[ 29.909990][ T354] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   29.911300][  T354] RSP: 0018:ffffc90000556ef0 EFLAGS: 00010246
[   29.911772][  T354] RAX: 0000000000000000 RBX: ffff88800bf42000 RCX: 0000000000000001
[   29.912315][  T354] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[   29.912852][  T354] RBP: ffffc90000556fd8 R08: 0000000000000000 R09: 0000000000000000
[   29.913404][  T354] R10: ffffc90000557008 R11: ffffffff9998d1e0 R12: 1ffff920000aade2
[   29.913930][  T354] R13: 00000000000005dc R14: ffffc90000557008 R15: ffff88800bf42f48
[   29.914549][  T354] FS:  00007fc3995ea800(0000) GS:ffff8880d1a99000(0000) knlGS:0000000000000000
[   29.915240][  T354] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.915721][  T354] CR2: 00000000004e6888 CR3: 000000000ad72005 CR4: 0000000000772ef0
[   29.916273][  T354] PKRU: 55555554
[   29.916550][  T354] Call Trace:
[   29.916826][  T354]  <TASK>
[ 29.917018][ T354] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 29.917393][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 29.917758][ T354] netif_set_mtu (net/core/dev.c:9652) 
[ 29.918139][ T354] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 29.918499][ T354] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 29.918797][ T354] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 29.919170][ T354] br_add_if (net/bridge/br_if.c:697) 
[ 29.919475][ T354] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 29.919841][ T354] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 29.920221][ T354] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 29.920612][ T354] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 29.921095][ T354] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 29.921473][ T354] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 29.921825][ T354] ? __kernel_text_address (kernel/extable.c:79) 
[ 29.922190][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 29.922547][ T354] ? __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) 
[ 29.922894][ T354] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 29.923346][ T354] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 29.923704][ T354] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 29.924059][ T354] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 29.924440][ T354] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 29.924807][ T354] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 29.925194][ T354] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 29.925551][ T354] ? __create_object (mm/kmemleak.c:771) 
[ 29.925928][ T354] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 29.926310][ T354] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 29.926704][ T354] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 29.927219][ T354] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 29.927616][ T354] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 29.927973][ T354] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 29.928351][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 29.928718][ T354] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 29.929085][ T354] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 29.929439][ T354] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 29.929790][ T354] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 29.930145][ T354] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 29.930499][ T354] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 29.930867][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 29.931247][ T354] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 29.931634][ T354] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 29.932017][ T354] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 29.932408][ T354] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 29.932792][ T354] ? 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) 
[ 29.933169][ T354] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 29.933526][ T354] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 29.934113][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 29.934474][ T354] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 29.934841][ T354] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 29.935203][ T354] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 29.935770][ T354] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 29.936155][ T354] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 29.936510][ T354] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 29.936982][ T354] ___sys_sendmsg (net/socket.c:2670) 
[ 29.937600][ T354] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 29.937949][ T354] ? __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) 
[ 29.938413][ T354] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 29.938765][ T354] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 29.939346][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 29.939706][ T354] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 29.940059][ T354] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 29.940448][ T354] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 29.941021][ T354] __sys_sendmsg (net/socket.c:2700) 
[ 29.941415][ T354] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 29.941881][ T354] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 29.942474][ T354] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 29.942866][ T354] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 29.943264][ T354] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   29.943698][  T354] RIP: 0033:0x7fc3997b71e7
[ 29.944319][ T354] 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)
[   29.945763][  T354] RSP: 002b:00007ffd5da17ed8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   29.946323][  T354] RAX: ffffffffffffffda RBX: 00007ffd5da18610 RCX: 00007fc3997b71e7
[   29.946864][  T354] RDX: 0000000000000000 RSI: 00007ffd5da17f40 RDI: 0000000000000005
[   29.947658][  T354] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   29.948222][  T354] R10: 00000000085bb910 R11: 0000000000000246 R12: 0000000000000005
[   29.948758][  T354] R13: 00000000686e7de8 R14: 0000000000499600 R15: 0000000000000000
| [   30.423117][  T357] ------------[ cut here ]------------
| [ 30.423527][ T357] WARNING: CPU: 2 PID: 357 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) 
| [   30.424262][  T357] Modules linked in: vxlan
| [   30.425300][  T357] Tainted: [W]=WARN
[   30.425565][  T357] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 30.426020][ T357] 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) 
[ 30.426408][ T357] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   30.427629][  T357] RSP: 0018:ffffc900005b7080 EFLAGS: 00010246
[   30.428074][  T357] RAX: 0000000000000000 RBX: ffff88800bf42000 RCX: 0000000000000001
[   30.428588][  T357] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[   30.429116][  T357] RBP: ffffc900005b7168 R08: 0000000000000000 R09: 0000000000000000
[   30.429632][  T357] R10: ffffc900005b7198 R11: ffffffff9a2ceab8 R12: 1ffff920000b6e14
[   30.430385][  T357] R13: 00000000000005dc R14: ffffc900005b7198 R15: ffff88800bf42f48
[   30.431180][  T357] FS:  00007f9361828800(0000) GS:ffff8880d1a99000(0000) knlGS:0000000000000000
[   30.432020][  T357] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.432642][  T357] CR2: 000000000043d940 CR3: 000000000c96b005 CR4: 0000000000772ef0
[   30.433366][  T357] PKRU: 55555554
[   30.433818][  T357] Call Trace:
[   30.434264][  T357]  <TASK>
[ 30.434599][ T357] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 30.435126][ T357] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 30.435623][ T357] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 30.436053][ T357] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 30.436442][ T357] netif_set_mtu (net/core/dev.c:9652) 
[ 30.436790][ T357] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 30.437182][ T357] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 30.437644][ T357] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 30.437914][ T357] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 30.438294][ T357] br_add_if (net/bridge/br_if.c:697) 
[ 30.438597][ T357] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 30.438943][ T357] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 30.439311][ T357] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 30.439702][ T357] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 30.440049][ T357] ? __dev_get_by_name (net/core/dev.c:865) 
[ 30.440415][ T357] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 30.440771][ T357] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 30.441196][ T357] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 30.441565][ T357] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 30.441922][ T357] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 30.442295][ T357] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 30.442671][ T357] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 30.443031][ T357] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 30.443394][ T357] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 30.443756][ T357] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 30.444118][ T357] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 30.444499][ T357] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 30.444857][ T357] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 30.445241][ T357] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 30.445622][ T357] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 30.445973][ T357] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 30.446357][ T357] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 30.446734][ T357] ? 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) 
[ 30.447104][ T357] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 30.447456][ T357] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 30.447802][ T357] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 30.448171][ T357] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 30.448526][ T357] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 30.448885][ T357] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 30.449270][ T357] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 30.449624][ T357] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 30.449973][ T357] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 30.450432][ T357] ___sys_sendmsg (net/socket.c:2670) 
[ 30.450788][ T357] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 30.451154][ T357] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 30.451541][ T357] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 30.451887][ T357] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 30.452259][ T357] ? __handle_mm_fault (mm/memory.c:6212) 
[ 30.452617][ T357] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 30.452979][ T357] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 30.453402][ T357] __sys_sendmsg (net/socket.c:2700) 
[ 30.453770][ T357] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 30.454167][ T357] ? 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) 
[ 30.454559][ T357] ? 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) 
[ 30.454936][ T357] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 30.455307][ T357] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 30.455659][ T357] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   30.456100][  T357] RIP: 0033:0x7f93619f51e7
[ 30.456458][ T357] 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)
[   30.457694][  T357] RSP: 002b:00007ffc7ff93d28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   30.458229][  T357] RAX: ffffffffffffffda RBX: 00007ffc7ff94460 RCX: 00007f93619f51e7
[   30.458749][  T357] RDX: 0000000000000000 RSI: 00007ffc7ff93d90 RDI: 0000000000000005
[   30.459283][  T357] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   30.459803][  T357] R10: 00007f9361a83ac0 R11: 0000000000000246 R12: 00007ffc7ff94498
[   30.460337][  T357] R13: 00000000686e7de8 R14: 0000000000499600 R15: 00007ffc7ff93e80
| [   52.967311][   T69] ------------[ cut here ]------------
| [ 52.967845][ T69] WARNING: CPU: 0 PID: 69 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   52.968395][   T69] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   52.969709][   T69] Tainted: [W]=WARN
[   52.969951][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   52.970346][   T69] Workqueue: netns cleanup_net
[ 52.970693][ T69] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 52.971007][ T69] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   52.972141][   T69] RSP: 0018:ffffc900004a75b0 EFLAGS: 00010246
[   52.972536][   T69] RAX: 0000000000000000 RBX: ffff888004fca000 RCX: 0000000000000001
[   52.973002][   T69] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[   52.973491][   T69] RBP: ffffc900004a7698 R08: 0000000000000000 R09: 0000000000000000
[   52.973952][   T69] R10: ffffc900004a76c8 R11: ffffffff9589be78 R12: 1ffff92000094eba
[   52.974555][   T69] R13: 00000000000005dc R14: ffffc900004a76c8 R15: ffff888004fcaf48
[   52.975024][   T69] FS:  0000000000000000(0000) GS:ffff8880d1999000(0000) knlGS:0000000000000000
[   52.975732][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   52.976290][   T69] CR2: 00005593505f5b10 CR3: 000000004434a002 CR4: 0000000000772ef0
[   52.976753][   T69] PKRU: 55555554
[   52.976983][   T69] Call Trace:
[   52.977280][   T69]  <TASK>
[ 52.977438][ T69] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 52.977825][ T69] ? br_del_if (net/bridge/br_if.c:742) 
[ 52.978057][ T69] ? br_device_event (net/bridge/br.c:141) 
[ 52.978369][ T69] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 52.978677][ T69] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 52.978988][ T69] ? cleanup_net (net/core/net_namespace.c:684) 
[ 52.979313][ T69] ? process_one_work (kernel/workqueue.c:3238) 
[ 52.979619][ T69] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 52.979927][ T69] ? kthread (kernel/kthread.c:464) 
[ 52.980178][ T69] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 52.980486][ T69] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 52.980794][ T69] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 52.981150][ T69] netif_set_mtu (net/core/dev.c:9652) 
[ 52.981466][ T69] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 52.981797][ T69] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 52.982034][ T69] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 52.982347][ T69] br_del_if (net/bridge/br_if.c:743) 
[ 52.982578][ T69] br_device_event (net/bridge/br.c:141) 
[ 52.982880][ T69] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 52.983212][ T69] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 52.983558][ T69] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 52.983942][ T69] ? 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) 
[ 52.984261][ T69] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 52.984648][ T69] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 52.985036][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 52.985447][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 52.985845][ T69] default_device_exit_batch (net/core/dev.c:12673) 
[ 52.986163][ T69] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 52.986556][ T69] ops_undo_list (net/core/net_namespace.c:250) 
[ 52.986865][ T69] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 52.987173][ T69] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 52.987488][ T69] cleanup_net (net/core/net_namespace.c:684) 
[ 52.987794][ T69] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 52.988116][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 52.988428][ T69] process_one_work (kernel/workqueue.c:3238) 
[ 52.988746][ T69] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 52.989061][ T69] ? assign_work (kernel/workqueue.c:1200) 
[ 52.989404][ T69] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 52.989720][ T69] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 52.990025][ T69] kthread (kernel/kthread.c:464) 
[ 52.990267][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 52.990581][ T69] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 52.990887][ T69] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 52.991201][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 52.991516][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 52.991825][ T69] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 52.992140][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 52.992447][ T69] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   53.394128][   T69] ------------[ cut here ]------------
| [ 53.394507][ T69] WARNING: CPU: 3 PID: 69 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) 
| [   53.395103][   T69] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   53.396583][   T69] Tainted: [W]=WARN
[   53.396879][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   53.397598][   T69] Workqueue: netns cleanup_net
[ 53.397973][ T69] 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) 
[ 53.398455][ T69] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   53.399862][   T69] RSP: 0000:ffffc900004a75b0 EFLAGS: 00010246
[   53.400385][   T69] RAX: 0000000000000000 RBX: ffff88800bf42000 RCX: 0000000000000001
[   53.400881][   T69] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[   53.401382][   T69] RBP: ffffc900004a7698 R08: 0000000000000000 R09: 0000000000000000
[   53.401895][   T69] R10: ffffc900004a76c8 R11: ffffffff9998d1e0 R12: 1ffff92000094eba
[   53.402395][   T69] R13: 00000000000005dc R14: ffffc900004a76c8 R15: ffff88800bf42f48
[   53.402927][   T69] FS:  0000000000000000(0000) GS:ffff8880d1b19000(0000) knlGS:0000000000000000
[   53.403507][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   53.403922][   T69] CR2: 00007f45dfb3e270 CR3: 000000004434a004 CR4: 0000000000772ef0
[   53.404435][   T69] PKRU: 55555554
[   53.404681][   T69] Call Trace:
[   53.404926][   T69]  <TASK>
[ 53.405110][ T69] ? __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) 
[ 53.405516][ T69] ? br_del_if (net/bridge/br_if.c:742) 
[ 53.405766][ T69] ? br_device_event (net/bridge/br.c:141) 
[ 53.406098][ T69] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 53.406428][ T69] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 53.406772][ T69] ? cleanup_net (net/core/net_namespace.c:684) 
[ 53.407124][ T69] ? process_one_work (kernel/workqueue.c:3238) 
[ 53.407462][ T69] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 53.407795][ T69] ? kthread (kernel/kthread.c:464) 
[ 53.408044][ T69] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 53.408383][ T69] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 53.408716][ T69] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 53.409201][ T69] netif_set_mtu (net/core/dev.c:9652) 
[ 53.409713][ T69] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 53.410274][ T69] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 53.410668][ T69] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 53.411239][ T69] br_del_if (net/bridge/br_if.c:743) 
[ 53.411634][ T69] br_device_event (net/bridge/br.c:141) 
[ 53.412183][ T69] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 53.412721][ T69] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 53.413312][ T69] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 53.414003][ T69] ? 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) 
[ 53.414568][ T69] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 53.415277][ T69] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 53.415946][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 53.416654][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 53.417367][ T69] default_device_exit_batch (net/core/dev.c:12673) 
[ 53.417918][ T69] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 53.418647][ T69] ops_undo_list (net/core/net_namespace.c:250) 
[ 53.419184][ T69] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 53.419717][ T69] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 53.420305][ T69] cleanup_net (net/core/net_namespace.c:684) 
[ 53.420847][ T69] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 53.421410][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 53.421972][ T69] process_one_work (kernel/workqueue.c:3238) 
[ 53.422559][ T69] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 53.423141][ T69] ? assign_work (kernel/workqueue.c:1200) 
[ 53.423719][ T69] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 53.424327][ T69] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 53.424871][ T69] kthread (kernel/kthread.c:464) 
[ 53.425302][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 53.425843][ T69] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 53.426410][ T69] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 53.426959][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 53.427539][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 53.428104][ T69] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 53.428745][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 53.429295][ T69] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   65.531899][  T608] ------------[ cut here ]------------
| [ 65.532233][ T608] WARNING: CPU: 0 PID: 608 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) 
| [   65.532823][  T608] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   65.533922][  T608] Tainted: [W]=WARN
[   65.534155][  T608] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 65.534524][ T608] 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) 
[ 65.534833][ T608] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   65.535910][  T608] RSP: 0018:ffffc90000e96ef0 EFLAGS: 00010246
[   65.536300][  T608] RAX: 0000000000000000 RBX: ffff88800c4ea000 RCX: 0000000000000001
[   65.536741][  T608] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[   65.537187][  T608] RBP: ffffc90000e96fd8 R08: 0000000000000000 R09: 0000000000000000
[   65.537634][  T608] R10: ffffc90000e97008 R11: ffffffff9998d1e0 R12: 1ffff920001d2de2
[   65.538090][  T608] R13: 00000000000005dc R14: ffffc90000e97008 R15: ffff88800c4eaf48
[   65.538533][  T608] FS:  00007fedf55d9800(0000) GS:ffff8880d1999000(0000) knlGS:0000000000000000
[   65.539057][  T608] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   65.539444][  T608] CR2: 00000000004e6888 CR3: 000000000ea7b003 CR4: 0000000000772ef0
[   65.539887][  T608] PKRU: 55555554
[   65.540116][  T608] Call Trace:
[   65.540338][  T608]  <TASK>
[ 65.540493][ T608] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 65.540788][ T608] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 65.541110][ T608] netif_set_mtu (net/core/dev.c:9652) 
[ 65.541405][ T608] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 65.541721][ T608] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 65.541943][ T608] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 65.542269][ T608] br_add_if (net/bridge/br_if.c:697) 
[ 65.542503][ T608] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 65.542796][ T608] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 65.543118][ T608] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 65.543420][ T608] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 65.543792][ T608] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 65.544096][ T608] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 65.544394][ T608] ? __kernel_text_address (kernel/extable.c:79) 
[ 65.544690][ T608] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 65.544985][ T608] ? __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) 
[ 65.545293][ T608] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 65.545656][ T608] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 65.545952][ T608] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 65.546252][ T608] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 65.546547][ T608] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 65.546841][ T608] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 65.547152][ T608] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 65.547448][ T608] ? __create_object (mm/kmemleak.c:771) 
[ 65.547749][ T608] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 65.548043][ T608] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 65.548349][ T608] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 65.548716][ T608] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 65.549019][ T608] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 65.549325][ T608] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 65.549621][ T608] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 65.549924][ T608] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 65.550224][ T608] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 65.550516][ T608] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 65.550812][ T608] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 65.551122][ T608] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 65.551418][ T608] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 65.551721][ T608] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 65.552020][ T608] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 65.552324][ T608] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 65.552618][ T608] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 65.552923][ T608] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 65.553221][ T608] ? 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) 
[ 65.553516][ T608] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 65.553814][ T608] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 65.554112][ T608] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 65.554414][ T608] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 65.554711][ T608] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 65.555003][ T608] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 65.555319][ T608] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 65.555617][ T608] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 65.555906][ T608] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 65.556290][ T608] ___sys_sendmsg (net/socket.c:2670) 
[ 65.556588][ T608] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 65.556879][ T608] ? __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) 
[ 65.557258][ T608] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 65.557557][ T608] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 65.557855][ T608] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 65.558161][ T608] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 65.558456][ T608] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 65.558756][ T608] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 65.559056][ T608] __sys_sendmsg (net/socket.c:2700) 
[ 65.559363][ T608] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 65.559727][ T608] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 65.560031][ T608] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 65.560333][ T608] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 65.560628][ T608] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   65.560995][  T608] RIP: 0033:0x7fedf57a61e7
[ 65.561336][ T608] 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)
[   65.562404][  T608] RSP: 002b:00007ffc3da9fbe8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   65.562849][  T608] RAX: ffffffffffffffda RBX: 00007ffc3daa0320 RCX: 00007fedf57a61e7
[   65.563315][  T608] RDX: 0000000000000000 RSI: 00007ffc3da9fc50 RDI: 0000000000000005
[   65.563759][  T608] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   65.564209][  T608] R10: 00000000288ee910 R11: 0000000000000246 R12: 0000000000000005
[   65.564650][  T608] R13: 00000000686e7e0c R14: 0000000000499600 R15: 0000000000000000
| [   66.007116][  T611] ------------[ cut here ]------------
| [ 66.007437][ T611] WARNING: CPU: 1 PID: 611 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) 
| [   66.008718][  T611] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   66.009838][  T611] Tainted: [W]=WARN
[   66.010095][  T611] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 66.010472][ T611] 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) 
[ 66.010783][ T611] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   66.011909][  T611] RSP: 0018:ffffc9000099f080 EFLAGS: 00010246
[   66.012381][  T611] RAX: 0000000000000000 RBX: ffff88800c4ea000 RCX: 0000000000000001
[   66.012831][  T611] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[   66.013300][  T611] RBP: ffffc9000099f168 R08: 0000000000000000 R09: 0000000000000000
[   66.013850][  T611] R10: ffffc9000099f198 R11: ffffffff9a2ceab8 R12: 1ffff92000133e14
[   66.014406][  T611] R13: 00000000000005dc R14: ffffc9000099f198 R15: ffff88800c4eaf48
[   66.014857][  T611] FS:  00007f4c516b9800(0000) GS:ffff8880d1a19000(0000) knlGS:0000000000000000
[   66.015431][  T611] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   66.015818][  T611] CR2: 000000000043d940 CR3: 000000000ea72002 CR4: 0000000000772ef0
[   66.016360][  T611] PKRU: 55555554
[   66.016598][  T611] Call Trace:
[   66.016824][  T611]  <TASK>
[ 66.017089][ T611] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 66.017402][ T611] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 66.017751][ T611] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 66.018215][ T611] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 66.018522][ T611] netif_set_mtu (net/core/dev.c:9652) 
[ 66.018825][ T611] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 66.019184][ T611] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 66.019563][ T611] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 66.019792][ T611] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 66.020195][ T611] br_add_if (net/bridge/br_if.c:697) 
[ 66.020435][ T611] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 66.020733][ T611] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 66.021048][ T611] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 66.021367][ T611] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 66.021677][ T611] ? __dev_get_by_name (net/core/dev.c:865) 
[ 66.021990][ T611] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 66.022306][ T611] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 66.022610][ T611] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 66.022907][ T611] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 66.023253][ T611] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 66.023566][ T611] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 66.023876][ T611] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 66.024229][ T611] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 66.024551][ T611] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 66.024931][ T611] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 66.025346][ T611] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 66.025701][ T611] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 66.026089][ T611] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 66.026470][ T611] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 66.026868][ T611] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 66.027391][ T611] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 66.027937][ T611] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 66.028428][ T611] ? 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) 
[ 66.028734][ T611] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 66.029053][ T611] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 66.029374][ T611] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 66.029686][ T611] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 66.030000][ T611] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 66.030311][ T611] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 66.030620][ T611] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 66.030923][ T611] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 66.031237][ T611] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 66.031645][ T611] ___sys_sendmsg (net/socket.c:2670) 
[ 66.031947][ T611] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 66.032286][ T611] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 66.032592][ T611] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 66.032953][ T611] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 66.033290][ T611] ? __handle_mm_fault (mm/memory.c:6212) 
[ 66.033654][ T611] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 66.033958][ T611] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 66.034306][ T611] __sys_sendmsg (net/socket.c:2700) 
[ 66.034612][ T611] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 66.034938][ T611] ? 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) 
[ 66.035356][ T611] ? 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) 
[ 66.035700][ T611] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 66.036137][ T611] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 66.036545][ T611] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   66.036971][  T611] RIP: 0033:0x7f4c518861e7
[ 66.037307][ T611] 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)
[   66.038400][  T611] RSP: 002b:00007ffe35c49b48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   66.038857][  T611] RAX: ffffffffffffffda RBX: 00007ffe35c4a280 RCX: 00007f4c518861e7
[   66.039320][  T611] RDX: 0000000000000000 RSI: 00007ffe35c49bb0 RDI: 0000000000000005
[   66.039770][  T611] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   66.040262][  T611] R10: 00007f4c51914ac0 R11: 0000000000000246 R12: 00007ffe35c4a2b8
[   66.040725][  T611] R13: 00000000686e7e0c R14: 0000000000499600 R15: 00007ffe35c49ca0
| [   68.115914][  T628] ------------[ cut here ]------------
| [ 68.116274][ T628] WARNING: CPU: 3 PID: 628 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) 
| [   68.116892][  T628] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   68.118028][  T628] Tainted: [W]=WARN
[   68.118277][  T628] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 68.118662][ T628] 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) 
[ 68.118979][ T628] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   68.120090][  T628] RSP: 0018:ffffc90000cd6ef0 EFLAGS: 00010246
[   68.120484][  T628] RAX: 0000000000000000 RBX: ffff888009c7a000 RCX: 0000000000000001
[   68.120945][  T628] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[   68.121421][  T628] RBP: ffffc90000cd6fd8 R08: 0000000000000000 R09: 0000000000000000
[   68.121909][  T628] R10: ffffc90000cd7008 R11: ffffffff9998d1e0 R12: 1ffff9200019ade2
[   68.122383][  T628] R13: 00000000000005dc R14: ffffc90000cd7008 R15: ffff888009c7af48
[   68.122847][  T628] FS:  00007f881696c800(0000) GS:ffff8880d1b19000(0000) knlGS:0000000000000000
[   68.123401][  T628] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   68.123800][  T628] CR2: 00000000004e6888 CR3: 000000000ca58004 CR4: 0000000000772ef0
[   68.124294][  T628] PKRU: 55555554
[   68.124528][  T628] Call Trace:
[   68.124759][  T628]  <TASK>
[ 68.124921][ T628] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 68.125247][ T628] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 68.125581][ T628] netif_set_mtu (net/core/dev.c:9652) 
[ 68.125892][ T628] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 68.126253][ T628] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 68.126490][ T628] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 68.126808][ T628] br_add_if (net/bridge/br_if.c:697) 
[ 68.127053][ T628] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 68.127372][ T628] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 68.127687][ T628] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 68.128001][ T628] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 68.128410][ T628] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 68.128720][ T628] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 68.129027][ T628] ? __kernel_text_address (kernel/extable.c:79) 
[ 68.129355][ T628] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 68.129673][ T628] ? __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) 
[ 68.129986][ T628] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 68.130381][ T628] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 68.130696][ T628] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 68.131004][ T628] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 68.131323][ T628] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 68.131644][ T628] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 68.131953][ T628] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 68.132295][ T628] ? __create_object (mm/kmemleak.c:771) 
[ 68.132609][ T628] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 68.132916][ T628] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 68.133248][ T628] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 68.133641][ T628] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 68.133960][ T628] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 68.134284][ T628] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 68.134594][ T628] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 68.134907][ T628] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 68.135227][ T628] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 68.135535][ T628] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 68.135851][ T628] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 68.136174][ T628] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 68.136487][ T628] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 68.136800][ T628] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 68.137132][ T628] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 68.137448][ T628] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 68.137759][ T628] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 68.138095][ T628] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 68.138404][ T628] ? 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) 
[ 68.138714][ T628] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 68.139025][ T628] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 68.139341][ T628] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 68.139656][ T628] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 68.139966][ T628] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 68.140294][ T628] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 68.140609][ T628] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 68.140923][ T628] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 68.141242][ T628] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 68.141651][ T628] ___sys_sendmsg (net/socket.c:2670) 
[ 68.141960][ T628] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 68.142278][ T628] ? __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) 
[ 68.142667][ T628] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 68.142979][ T628] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 68.143304][ T628] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 68.143617][ T628] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 68.143926][ T628] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 68.144247][ T628] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 68.144565][ T628] __sys_sendmsg (net/socket.c:2700) 
[ 68.144870][ T628] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 68.145273][ T628] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 68.145604][ T628] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 68.145915][ T628] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 68.146241][ T628] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   68.146626][  T628] RIP: 0033:0x7f8816b391e7
[ 68.146944][ T628] 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)
[   68.148073][  T628] RSP: 002b:00007ffc5bcb9c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   68.148541][  T628] RAX: ffffffffffffffda RBX: 00007ffc5bcba3a0 RCX: 00007f8816b391e7
[   68.149004][  T628] RDX: 0000000000000000 RSI: 00007ffc5bcb9cd0 RDI: 0000000000000005
[   68.149489][  T628] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   68.149959][  T628] R10: 00000000252b0910 R11: 0000000000000246 R12: 0000000000000005
[   68.150433][  T628] R13: 00000000686e7e0e R14: 0000000000499600 R15: 0000000000000000
| [   68.525564][  T631] ------------[ cut here ]------------
| [ 68.525890][ T631] WARNING: CPU: 2 PID: 631 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) 
| [   68.526709][  T631] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   68.528221][  T631] Tainted: [W]=WARN
[   68.528612][  T631] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 68.529150][ T631] 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) 
[ 68.529533][ T631] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   68.530635][  T631] RSP: 0018:ffffc90000f67080 EFLAGS: 00010246
[   68.531037][  T631] RAX: 0000000000000000 RBX: ffff888009c7a000 RCX: 0000000000000001
[   68.531520][  T631] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[   68.531986][  T631] RBP: ffffc90000f67168 R08: 0000000000000000 R09: 0000000000000000
[   68.532464][  T631] R10: ffffc90000f67198 R11: ffffffff9a2ceab8 R12: 1ffff920001ece14
[   68.532936][  T631] R13: 00000000000005dc R14: ffffc90000f67198 R15: ffff888009c7af48
[   68.533422][  T631] FS:  00007fac68369800(0000) GS:ffff8880d1a99000(0000) knlGS:0000000000000000
[   68.533965][  T631] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   68.534371][  T631] CR2: 000000000043d940 CR3: 000000000a3b4001 CR4: 0000000000772ef0
[   68.534851][  T631] PKRU: 55555554
[   68.535103][  T631] Call Trace:
[   68.535344][  T631]  <TASK>
[ 68.535515][ T631] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 68.535839][ T631] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 68.536168][ T631] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 68.536562][ T631] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 68.536883][ T631] netif_set_mtu (net/core/dev.c:9652) 
[ 68.537224][ T631] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 68.537559][ T631] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 68.537955][ T631] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 68.538210][ T631] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 68.538531][ T631] br_add_if (net/bridge/br_if.c:697) 
[ 68.538785][ T631] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 68.539112][ T631] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 68.539432][ T631] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 68.539755][ T631] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 68.540079][ T631] ? __dev_get_by_name (net/core/dev.c:865) 
[ 68.540395][ T631] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 68.540707][ T631] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 68.541028][ T631] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 68.541362][ T631] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 68.541700][ T631] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 68.542033][ T631] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 68.542367][ T631] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 68.542698][ T631] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 68.543013][ T631] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 68.543344][ T631] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 68.543657][ T631] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 68.543976][ T631] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 68.544304][ T631] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 68.544632][ T631] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 68.544949][ T631] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 68.545292][ T631] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 68.545621][ T631] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 68.545942][ T631] ? 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) 
[ 68.546268][ T631] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 68.546588][ T631] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 68.546906][ T631] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 68.547240][ T631] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 68.547555][ T631] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 68.547871][ T631] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 68.548205][ T631] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 68.548526][ T631] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 68.548838][ T631] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 68.549278][ T631] ___sys_sendmsg (net/socket.c:2670) 
[ 68.549604][ T631] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 68.549921][ T631] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 68.550253][ T631] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 68.550568][ T631] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 68.550884][ T631] ? __handle_mm_fault (mm/memory.c:6212) 
[ 68.551214][ T631] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 68.551536][ T631] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 68.551876][ T631] __sys_sendmsg (net/socket.c:2700) 
[ 68.552203][ T631] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 68.552516][ T631] ? 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) 
[ 68.552844][ T631] ? 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) 
[ 68.553185][ T631] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 68.553506][ T631] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 68.553832][ T631] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   68.554233][  T631] RIP: 0033:0x7fac685361e7
[ 68.554562][ T631] 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)
[   68.555669][  T631] RSP: 002b:00007ffc76ce0948 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   68.556162][  T631] RAX: ffffffffffffffda RBX: 00007ffc76ce1080 RCX: 00007fac685361e7
[   68.556627][  T631] RDX: 0000000000000000 RSI: 00007ffc76ce09b0 RDI: 0000000000000005
[   68.557119][  T631] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   68.557586][  T631] R10: 00007fac685c4ac0 R11: 0000000000000246 R12: 00007ffc76ce10b8
[   68.558060][  T631] R13: 00000000686e7e0f R14: 0000000000499600 R15: 00007ffc76ce0aa0
| [   79.790043][   T69] ------------[ cut here ]------------
| [ 79.790395][ T69] WARNING: CPU: 2 PID: 69 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) 
| [   79.790924][   T69] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   79.792129][   T69] Tainted: [W]=WARN
[   79.792363][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   79.792748][   T69] Workqueue: netns cleanup_net
[ 79.793091][ T69] 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) 
[ 79.793418][ T69] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   79.794484][   T69] RSP: 0018:ffffc900004a75b0 EFLAGS: 00010246
[   79.794878][   T69] RAX: 0000000000000000 RBX: ffff88800c4ea000 RCX: 0000000000000001
[   79.795347][   T69] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[   79.795804][   T69] RBP: ffffc900004a7698 R08: 0000000000000000 R09: 0000000000000000
[   79.796265][   T69] R10: ffffc900004a76c8 R11: ffffffff9998d1e0 R12: 1ffff92000094eba
[   79.796721][   T69] R13: 00000000000005dc R14: ffffc900004a76c8 R15: ffff88800c4eaf48
[   79.797185][   T69] FS:  0000000000000000(0000) GS:ffff8880d1a99000(0000) knlGS:0000000000000000
[   79.797709][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   79.798115][   T69] CR2: 000055c60cbd70b8 CR3: 000000004434a002 CR4: 0000000000772ef0
[   79.798576][   T69] PKRU: 55555554
[   79.798809][   T69] Call Trace:
[   79.799041][   T69]  <TASK>
[ 79.799216][ T69] ? __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) 
[ 79.799604][ T69] ? br_del_if (net/bridge/br_if.c:742) 
[ 79.799844][ T69] ? br_device_event (net/bridge/br.c:141) 
[ 79.800160][ T69] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 79.800478][ T69] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 79.800785][ T69] ? cleanup_net (net/core/net_namespace.c:684) 
[ 79.801106][ T69] ? process_one_work (kernel/workqueue.c:3238) 
[ 79.801417][ T69] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 79.801736][ T69] ? kthread (kernel/kthread.c:464) 
[ 79.801972][ T69] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 79.802291][ T69] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 79.802599][ T69] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 79.802916][ T69] netif_set_mtu (net/core/dev.c:9652) 
[ 79.803236][ T69] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 79.803561][ T69] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 79.803797][ T69] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 79.804117][ T69] br_del_if (net/bridge/br_if.c:743) 
[ 79.804354][ T69] br_device_event (net/bridge/br.c:141) 
[ 79.804663][ T69] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 79.804986][ T69] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 79.805322][ T69] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 79.805711][ T69] ? 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) 
[ 79.806015][ T69] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 79.806396][ T69] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 79.806768][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 79.807153][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 79.807543][ T69] default_device_exit_batch (net/core/dev.c:12673) 
[ 79.807848][ T69] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 79.808252][ T69] ops_undo_list (net/core/net_namespace.c:250) 
[ 79.808562][ T69] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 79.808864][ T69] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 79.809189][ T69] cleanup_net (net/core/net_namespace.c:684) 
[ 79.809497][ T69] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 79.809810][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 79.810130][ T69] process_one_work (kernel/workqueue.c:3238) 
[ 79.810448][ T69] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 79.810758][ T69] ? assign_work (kernel/workqueue.c:1200) 
[ 79.811078][ T69] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 79.811390][ T69] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 79.811706][ T69] kthread (kernel/kthread.c:464) 
[ 79.811940][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 79.812257][ T69] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 79.812560][ T69] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 79.812867][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 79.813183][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 79.813488][ T69] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 79.813788][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 79.814100][ T69] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   80.315615][   T69] ------------[ cut here ]------------
| [ 80.315952][ T69] WARNING: CPU: 1 PID: 69 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) 
| [   80.316585][   T69] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   80.317708][   T69] Tainted: [W]=WARN
[   80.317928][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   80.318301][   T69] Workqueue: netns cleanup_net
[ 80.318602][ T69] 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) 
[ 80.318900][ T69] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   80.319959][   T69] RSP: 0018:ffffc900004a75b0 EFLAGS: 00010246
[   80.320338][   T69] RAX: 0000000000000000 RBX: ffff888009c7a000 RCX: 0000000000000001
[   80.320776][   T69] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[   80.321372][   T69] RBP: ffffc900004a7698 R08: 0000000000000000 R09: 0000000000000000
[   80.321813][   T69] R10: ffffc900004a76c8 R11: ffffffff9998d1e0 R12: 1ffff92000094eba
[   80.322521][   T69] R13: 00000000000005dc R14: ffffc900004a76c8 R15: ffff888009c7af48
[   80.322956][   T69] FS:  0000000000000000(0000) GS:ffff8880d1a19000(0000) knlGS:0000000000000000
[   80.323593][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   80.323955][   T69] CR2: 00007f59ca450000 CR3: 000000004434a003 CR4: 0000000000772ef0
[   80.324525][   T69] PKRU: 55555554
[   80.324742][   T69] Call Trace:
[   80.324956][   T69]  <TASK>
[ 80.325278][ T69] ? __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) 
[ 80.325644][ T69] ? br_del_if (net/bridge/br_if.c:742) 
[ 80.325861][ T69] ? br_device_event (net/bridge/br.c:141) 
[ 80.326399][ T69] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 80.326693][ T69] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 80.326975][ T69] ? cleanup_net (net/core/net_namespace.c:684) 
[ 80.327272][ T69] ? process_one_work (kernel/workqueue.c:3238) 
[ 80.327558][ T69] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 80.327849][ T69] ? kthread (kernel/kthread.c:464) 
[ 80.328075][ T69] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 80.328362][ T69] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 80.328650][ T69] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 80.328946][ T69] netif_set_mtu (net/core/dev.c:9652) 
[ 80.329240][ T69] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 80.329543][ T69] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 80.329761][ T69] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 80.330052][ T69] br_del_if (net/bridge/br_if.c:743) 
[ 80.330278][ T69] br_device_event (net/bridge/br.c:141) 
[ 80.330564][ T69] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 80.330858][ T69] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 80.331158][ T69] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 80.331528][ T69] ? 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) 
[ 80.331824][ T69] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 80.332191][ T69] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 80.332545][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 80.332898][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 80.333277][ T69] default_device_exit_batch (net/core/dev.c:12673) 
[ 80.333567][ T69] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 80.333931][ T69] ops_undo_list (net/core/net_namespace.c:250) 
[ 80.334242][ T69] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 80.334528][ T69] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 80.334822][ T69] cleanup_net (net/core/net_namespace.c:684) 
[ 80.335122][ T69] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 80.335417][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 80.335709][ T69] process_one_work (kernel/workqueue.c:3238) 
[ 80.336007][ T69] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 80.336310][ T69] ? assign_work (kernel/workqueue.c:1200) 
[ 80.336605][ T69] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 80.336899][ T69] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 80.337199][ T69] kthread (kernel/kthread.c:464) 
[ 80.337415][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 80.337697][ T69] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 80.337983][ T69] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 80.338280][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 80.338572][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 80.338863][ T69] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 80.339158][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 80.339444][ T69] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   91.015416][  T798] ------------[ cut here ]------------
| [ 91.015722][ T798] WARNING: CPU: 3 PID: 798 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   91.016324][  T798] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   91.017381][  T798] Tainted: [W]=WARN
[   91.017608][  T798] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 91.017982][ T798] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 91.018294][ T798] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   91.019373][  T798] RSP: 0018:ffffc90001526ef0 EFLAGS: 00010246
[   91.019746][  T798] RAX: 0000000000000000 RBX: ffff88800caea000 RCX: 0000000000000001
[   91.020193][  T798] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[   91.020638][  T798] RBP: ffffc90001526fd8 R08: 0000000000000000 R09: 0000000000000000
[   91.021088][  T798] R10: ffffc90001527008 R11: ffffffff9998d1e0 R12: 1ffff920002a4de2
[   91.021538][  T798] R13: 00000000000005dc R14: ffffc90001527008 R15: ffff88800caeaf48
[   91.021996][  T798] FS:  00007fe0bb2bc800(0000) GS:ffff8880d1b19000(0000) knlGS:0000000000000000
[   91.022529][  T798] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   91.022898][  T798] CR2: 00000000004e6888 CR3: 00000000020ae001 CR4: 0000000000772ef0
[   91.023349][  T798] PKRU: 55555554
[   91.023569][  T798] Call Trace:
[   91.023788][  T798]  <TASK>
[ 91.023940][ T798] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 91.024246][ T798] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 91.024554][ T798] netif_set_mtu (net/core/dev.c:9652) 
[ 91.024850][ T798] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 91.025168][ T798] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 91.025392][ T798] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 91.025692][ T798] br_add_if (net/bridge/br_if.c:697) 
[ 91.025923][ T798] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 91.026224][ T798] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 91.026526][ T798] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 91.026823][ T798] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 91.027205][ T798] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 91.027499][ T798] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 91.027789][ T798] ? __kernel_text_address (kernel/extable.c:79) 
[ 91.028092][ T798] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 91.028391][ T798] ? __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) 
[ 91.028688][ T798] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 91.029050][ T798] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 91.029352][ T798] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 91.029645][ T798] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 91.029938][ T798] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 91.030240][ T798] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 91.030536][ T798] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 91.030829][ T798] ? __create_object (mm/kmemleak.c:771) 
[ 91.031131][ T798] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 91.031425][ T798] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 91.031728][ T798] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 91.032098][ T798] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 91.032400][ T798] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 91.032697][ T798] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 91.032987][ T798] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 91.033297][ T798] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 91.033591][ T798] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 91.033882][ T798] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 91.034184][ T798] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 91.034477][ T798] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 91.034770][ T798] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 91.035078][ T798] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 91.035377][ T798] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 91.035676][ T798] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 91.035971][ T798] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 91.036281][ T798] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 91.036574][ T798] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 91.036868][ T798] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 91.037169][ T798] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 91.037466][ T798] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 91.037766][ T798] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 91.038062][ T798] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 91.038365][ T798] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 91.038667][ T798] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 91.038965][ T798] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 91.039263][ T798] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 91.039641][ T798] ___sys_sendmsg (net/socket.c:2670) 
[ 91.039936][ T798] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 91.040237][ T798] ? __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) 
[ 91.040605][ T798] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 91.040905][ T798] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 91.041208][ T798] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 91.041507][ T798] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 91.041806][ T798] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 91.042112][ T798] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 91.042412][ T798] __sys_sendmsg (net/socket.c:2700) 
[ 91.042702][ T798] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 91.043062][ T798] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 91.043378][ T798] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 91.043673][ T798] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 91.043967][ T798] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   91.044341][  T798] RIP: 0033:0x7fe0bb4891e7
[ 91.044646][ T798] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   91.045927][  T798] RSP: 002b:00007ffdbc4b4cf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   91.046595][  T798] RAX: ffffffffffffffda RBX: 00007ffdbc4b5430 RCX: 00007fe0bb4891e7
[   91.047038][  T798] RDX: 0000000000000000 RSI: 00007ffdbc4b4d60 RDI: 0000000000000005
[   91.047483][  T798] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   91.048140][  T798] R10: 00000000232ed910 R11: 0000000000000246 R12: 0000000000000005
[   91.048577][  T798] R13: 00000000686e7e25 R14: 0000000000499600 R15: 0000000000000000
| [   91.417343][  T801] ------------[ cut here ]------------
| [ 91.417661][ T801] WARNING: CPU: 1 PID: 801 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   91.418269][  T801] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   91.419355][  T801] Tainted: [W]=WARN
[   91.419599][  T801] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 91.419978][ T801] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 91.420297][ T801] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   91.421388][  T801] RSP: 0018:ffffc90001557080 EFLAGS: 00010246
[   91.421798][  T801] RAX: 0000000000000000 RBX: ffff88800caea000 RCX: 0000000000000001
[   91.423438][  T801] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[   91.423889][  T801] RBP: ffffc90001557168 R08: 0000000000000000 R09: 0000000000000000
[   91.424345][  T801] R10: ffffc90001557198 R11: ffffffff9998d1e0 R12: 1ffff920002aae14
[   91.424806][  T801] R13: 00000000000005dc R14: ffffc90001557198 R15: ffff88800caeaf48
[   91.425275][  T801] FS:  00007f37e8544800(0000) GS:ffff8880d1a19000(0000) knlGS:0000000000000000
[   91.425805][  T801] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   91.426192][  T801] CR2: 00007f37e879fb78 CR3: 000000001037d003 CR4: 0000000000772ef0
[   91.426646][  T801] PKRU: 55555554
[   91.426882][  T801] Call Trace:
[   91.427116][  T801]  <TASK>
[ 91.427273][ T801] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 91.427575][ T801] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 91.427893][ T801] netif_set_mtu (net/core/dev.c:9652) 
[ 91.428228][ T801] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 91.428545][ T801] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 91.428773][ T801] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 91.429109][ T801] br_add_if (net/bridge/br_if.c:697) 
[ 91.429357][ T801] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 91.429657][ T801] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 91.429962][ T801] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 91.430278][ T801] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 91.430579][ T801] ? __dev_get_by_name (net/core/dev.c:865) 
[ 91.430883][ T801] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 91.431195][ T801] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 91.431518][ T801] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 91.431824][ T801] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 91.432141][ T801] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 91.432452][ T801] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 91.432761][ T801] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 91.433097][ T801] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 91.433406][ T801] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 91.433718][ T801] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 91.434019][ T801] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 91.434332][ T801] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 91.434640][ T801] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 91.434945][ T801] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 91.435255][ T801] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 91.435557][ T801] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 91.435871][ T801] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 91.436186][ T801] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 91.436489][ T801] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 91.436792][ T801] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 91.437109][ T801] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 91.437425][ T801] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 91.437730][ T801] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 91.438033][ T801] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 91.438362][ T801] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 91.438669][ T801] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 91.438970][ T801] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 91.439363][ T801] ___sys_sendmsg (net/socket.c:2670) 
[ 91.439667][ T801] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 91.439967][ T801] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 91.440280][ T801] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 91.440587][ T801] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 91.440894][ T801] ? __handle_mm_fault (mm/memory.c:6212) 
[ 91.441215][ T801] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 91.441529][ T801] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 91.441855][ T801] __sys_sendmsg (net/socket.c:2700) 
[ 91.442171][ T801] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 91.442481][ T801] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 91.442789][ T801] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 91.443103][ T801] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 91.443410][ T801] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 91.443713][ T801] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   91.444097][  T801] RIP: 0033:0x7f37e87111e7
[ 91.444410][ T801] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   91.445518][  T801] RSP: 002b:00007ffd40cca5e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   91.445983][  T801] RAX: ffffffffffffffda RBX: 00007ffd40ccad20 RCX: 00007f37e87111e7
[   91.446448][  T801] RDX: 0000000000000000 RSI: 00007ffd40cca650 RDI: 0000000000000005
[   91.446912][  T801] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   91.447374][  T801] R10: 00007f37e879fac0 R11: 0000000000000246 R12: 00007ffd40ccad58
[   91.447826][  T801] R13: 00000000686e7e25 R14: 0000000000499600 R15: 00007ffd40cca740
| [   93.417426][  T818] ------------[ cut here ]------------
| [ 93.417748][ T818] WARNING: CPU: 0 PID: 818 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   93.418383][  T818] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   93.419506][  T818] Tainted: [W]=WARN
[   93.419747][  T818] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 93.420142][ T818] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 93.420463][ T818] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   93.421578][  T818] RSP: 0018:ffffc90001616ef0 EFLAGS: 00010246
[   93.421968][  T818] RAX: 0000000000000000 RBX: ffff888011d5a000 RCX: 0000000000000001
[   93.422451][  T818] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[   93.422913][  T818] RBP: ffffc90001616fd8 R08: 0000000000000000 R09: 0000000000000000
[   93.423392][  T818] R10: ffffc90001617008 R11: ffffffff9998d1e0 R12: 1ffff920002c2de2
[   93.423856][  T818] R13: 00000000000005dc R14: ffffc90001617008 R15: ffff888011d5af48
[   93.424324][  T818] FS:  00007f533af1c800(0000) GS:ffff8880d1999000(0000) knlGS:0000000000000000
[   93.424866][  T818] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   93.425261][  T818] CR2: 00000000004e6888 CR3: 0000000011e45001 CR4: 0000000000772ef0
[   93.425725][  T818] PKRU: 55555554
[   93.425955][  T818] Call Trace:
[   93.426194][  T818]  <TASK>
[ 93.426355][ T818] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 93.426665][ T818] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 93.426988][ T818] netif_set_mtu (net/core/dev.c:9652) 
[ 93.427318][ T818] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 93.427648][ T818] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 93.427884][ T818] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 93.428208][ T818] br_add_if (net/bridge/br_if.c:697) 
[ 93.428450][ T818] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 93.428758][ T818] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 93.429084][ T818] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 93.429397][ T818] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 93.429785][ T818] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 93.430101][ T818] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 93.430406][ T818] ? __kernel_text_address (kernel/extable.c:79) 
[ 93.430716][ T818] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 93.431027][ T818] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 93.431363][ T818] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 93.431754][ T818] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 93.432075][ T818] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 93.432382][ T818] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 93.432687][ T818] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 93.432997][ T818] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 93.433316][ T818] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 93.433625][ T818] ? __create_object (mm/kmemleak.c:771) 
[ 93.433935][ T818] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 93.434253][ T818] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 93.434565][ T818] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 93.434947][ T818] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 93.435279][ T818] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 93.435600][ T818] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 93.435910][ T818] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 93.436234][ T818] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 93.436542][ T818] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 93.436848][ T818] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 93.437165][ T818] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 93.437471][ T818] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 93.437781][ T818] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 93.438100][ T818] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 93.438413][ T818] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 93.438723][ T818] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 93.439032][ T818] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 93.439373][ T818] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 93.439681][ T818] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 93.439991][ T818] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 93.440311][ T818] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 93.440620][ T818] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 93.440931][ T818] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 93.441250][ T818] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 93.441565][ T818] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 93.441881][ T818] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 93.442203][ T818] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 93.442509][ T818] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 93.442903][ T818] ___sys_sendmsg (net/socket.c:2670) 
[ 93.443232][ T818] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 93.443547][ T818] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 93.443930][ T818] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 93.444251][ T818] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 93.444561][ T818] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 93.444874][ T818] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 93.445191][ T818] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 93.445505][ T818] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 93.445820][ T818] __sys_sendmsg (net/socket.c:2700) 
[ 93.446134][ T818] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 93.446514][ T818] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 93.446834][ T818] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 93.447165][ T818] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 93.447487][ T818] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   93.447871][  T818] RIP: 0033:0x7f533b0e91e7
[ 93.448196][ T818] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   93.449299][  T818] RSP: 002b:00007ffe1d21ed58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   93.449764][  T818] RAX: ffffffffffffffda RBX: 00007ffe1d21f490 RCX: 00007f533b0e91e7
[   93.450238][  T818] RDX: 0000000000000000 RSI: 00007ffe1d21edc0 RDI: 0000000000000005
[   93.450699][  T818] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   93.451178][  T818] R10: 0000000017978910 R11: 0000000000000246 R12: 0000000000000005
[   93.451653][  T818] R13: 00000000686e7e27 R14: 0000000000499600 R15: 0000000000000000
| [   93.820357][  T821] ------------[ cut here ]------------
| [ 93.820653][ T821] WARNING: CPU: 1 PID: 821 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   93.821253][  T821] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   93.822351][  T821] Tainted: [W]=WARN
[   93.822581][  T821] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 93.822956][ T821] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 93.823271][ T821] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   93.824357][  T821] RSP: 0018:ffffc90001637080 EFLAGS: 00010246
[   93.824742][  T821] RAX: 0000000000000000 RBX: ffff888011d5a000 RCX: 0000000000000001
[   93.825214][  T821] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[   93.825668][  T821] RBP: ffffc90001637168 R08: 0000000000000000 R09: 0000000000000000
[   93.826126][  T821] R10: ffffc90001637198 R11: ffffffff9a2ceab8 R12: 1ffff920002c6e14
[   93.826577][  T821] R13: 00000000000005dc R14: ffffc90001637198 R15: ffff888011d5af48
[   93.827026][  T821] FS:  00007fa36fb9c800(0000) GS:ffff8880d1a19000(0000) knlGS:0000000000000000
[   93.827564][  T821] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   93.827944][  T821] CR2: 000000000043d940 CR3: 000000000c640002 CR4: 0000000000772ef0
[   93.828404][  T821] PKRU: 55555554
[   93.828631][  T821] Call Trace:
[   93.828856][  T821]  <TASK>
[ 93.829014][ T821] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 93.829337][ T821] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 93.829645][ T821] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 93.830021][ T821] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 93.830334][ T821] netif_set_mtu (net/core/dev.c:9652) 
[ 93.830637][ T821] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 93.830950][ T821] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 93.831337][ T821] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 93.831587][ T821] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 93.831896][ T821] br_add_if (net/bridge/br_if.c:697) 
[ 93.832143][ T821] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 93.832445][ T821] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 93.832748][ T821] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 93.833052][ T821] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 93.833359][ T821] ? __dev_get_by_name (net/core/dev.c:865) 
[ 93.833663][ T821] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 93.833966][ T821] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 93.834279][ T821] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 93.834579][ T821] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 93.834884][ T821] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 93.835204][ T821] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 93.835510][ T821] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 93.835825][ T821] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 93.836132][ T821] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 93.836441][ T821] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 93.836741][ T821] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 93.837043][ T821] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 93.837358][ T821] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 93.837665][ T821] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 93.837966][ T821] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 93.838278][ T821] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 93.838594][ T821] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 93.838896][ T821] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 93.839205][ T821] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 93.839509][ T821] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 93.839808][ T821] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 93.840124][ T821] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 93.840430][ T821] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 93.840738][ T821] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 93.841047][ T821] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 93.841362][ T821] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 93.841670][ T821] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 93.842057][ T821] ___sys_sendmsg (net/socket.c:2670) 
[ 93.842367][ T821] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 93.842670][ T821] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 93.842976][ T821] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 93.843284][ T821] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 93.843591][ T821] ? __handle_mm_fault (mm/memory.c:6212) 
[ 93.843891][ T821] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 93.844198][ T821] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 93.844522][ T821] __sys_sendmsg (net/socket.c:2700) 
[ 93.844827][ T821] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 93.845140][ T821] ? 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) 
[ 93.845449][ T821] ? 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) 
[ 93.845753][ T821] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 93.846058][ T821] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 93.846368][ T821] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   93.846741][  T821] RIP: 0033:0x7fa36fd691e7
[ 93.847051][ T821] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   93.848136][  T821] RSP: 002b:00007ffe7f2195d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   93.848589][  T821] RAX: ffffffffffffffda RBX: 00007ffe7f219d10 RCX: 00007fa36fd691e7
[   93.849038][  T821] RDX: 0000000000000000 RSI: 00007ffe7f219640 RDI: 0000000000000005
[   93.849504][  T821] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   93.849956][  T821] R10: 00007fa36fdf7ac0 R11: 0000000000000246 R12: 00007ffe7f219d48
[   93.850414][  T821] R13: 00000000686e7e28 R14: 0000000000499600 R15: 00007ffe7f219730
| [  120.928709][   T69] ------------[ cut here ]------------
| [ 120.929014][ T69] WARNING: CPU: 3 PID: 69 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) 
| [  120.930176][   T69] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  120.931327][   T69] Tainted: [W]=WARN
[  120.931561][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  120.931944][   T69] Workqueue: netns cleanup_net
[ 120.932268][ T69] 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) 
[ 120.932581][ T69] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  120.933662][   T69] RSP: 0000:ffffc900004a75b0 EFLAGS: 00010246
[  120.934039][   T69] RAX: 0000000000000000 RBX: ffff88800caea000 RCX: 0000000000000001
[  120.934493][   T69] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[  120.934943][   T69] RBP: ffffc900004a7698 R08: 0000000000000000 R09: 0000000000000000
[  120.935395][   T69] R10: ffffc900004a76c8 R11: ffffffff9998d1e0 R12: 1ffff92000094eba
[  120.935844][   T69] R13: 00000000000005dc R14: ffffc900004a76c8 R15: ffff88800caeaf48
[  120.936303][   T69] FS:  0000000000000000(0000) GS:ffff8880d1b19000(0000) knlGS:0000000000000000
[  120.936823][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  120.937210][   T69] CR2: 00007f45dfb68e40 CR3: 000000004434a003 CR4: 0000000000772ef0
[  120.937661][   T69] PKRU: 55555554
[  120.937880][   T69] Call Trace:
[  120.938111][   T69]  <TASK>
[ 120.938261][ T69] ? __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) 
[ 120.938631][ T69] ? br_del_if (net/bridge/br_if.c:742) 
[ 120.938854][ T69] ? br_device_event (net/bridge/br.c:141) 
[ 120.939154][ T69] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 120.939454][ T69] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 120.939745][ T69] ? cleanup_net (net/core/net_namespace.c:684) 
[ 120.940034][ T69] ? process_one_work (kernel/workqueue.c:3238) 
[ 120.940334][ T69] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 120.940625][ T69] ? kthread (kernel/kthread.c:464) 
[ 120.940853][ T69] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 120.941155][ T69] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 120.941445][ T69] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 120.941754][ T69] netif_set_mtu (net/core/dev.c:9652) 
[ 120.942047][ T69] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 120.942365][ T69] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 120.942591][ T69] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 120.942885][ T69] br_del_if (net/bridge/br_if.c:743) 
[ 120.943123][ T69] br_device_event (net/bridge/br.c:141) 
[ 120.943419][ T69] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 120.943720][ T69] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 120.944021][ T69] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 120.944402][ T69] ? 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) 
[ 120.944703][ T69] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 120.945062][ T69] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 120.945433][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 120.945793][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 120.946173][ T69] default_device_exit_batch (net/core/dev.c:12673) 
[ 120.946468][ T69] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 120.946845][ T69] ops_undo_list (net/core/net_namespace.c:250) 
[ 120.947155][ T69] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 120.947447][ T69] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 120.947743][ T69] cleanup_net (net/core/net_namespace.c:684) 
[ 120.948037][ T69] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 120.948340][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 120.948634][ T69] process_one_work (kernel/workqueue.c:3238) 
[ 120.948933][ T69] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 120.949249][ T69] ? assign_work (kernel/workqueue.c:1200) 
[ 120.949543][ T69] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 120.949843][ T69] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 120.950146][ T69] kthread (kernel/kthread.c:464) 
[ 120.950366][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 120.950653][ T69] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 120.950939][ T69] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 120.951248][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 120.951538][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 120.951858][ T69] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 120.952162][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 120.952459][ T69] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  121.335774][   T69] ------------[ cut here ]------------
| [ 121.336131][ T69] WARNING: CPU: 1 PID: 69 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) 
| [  121.336637][   T69] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  121.337768][   T69] Tainted: [W]=WARN
[  121.338014][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  121.338523][   T69] Workqueue: netns cleanup_net
[ 121.338828][ T69] 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) 
[ 121.339265][ T69] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  121.340354][   T69] RSP: 0018:ffffc900004a75b0 EFLAGS: 00010246
[  121.340713][   T69] RAX: 0000000000000000 RBX: ffff888011d5a000 RCX: 0000000000000001
[  121.341139][   T69] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[  121.341561][   T69] RBP: ffffc900004a7698 R08: 0000000000000000 R09: 0000000000000000
[  121.342013][   T69] R10: ffffc900004a76c8 R11: ffffffff9998d1e0 R12: 1ffff92000094eba
[  121.342456][   T69] R13: 00000000000005dc R14: ffffc900004a76c8 R15: ffff888011d5af48
[  121.342890][   T69] FS:  0000000000000000(0000) GS:ffff8880d1a19000(0000) knlGS:0000000000000000
[  121.343400][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  121.343752][   T69] CR2: 00007f81040f1000 CR3: 000000004434a001 CR4: 0000000000772ef0
[  121.344189][   T69] PKRU: 55555554
[  121.344400][   T69] Call Trace:
[  121.344612][   T69]  <TASK>
[ 121.344753][ T69] ? __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) 
[ 121.345116][ T69] ? br_del_if (net/bridge/br_if.c:742) 
[ 121.345331][ T69] ? br_device_event (net/bridge/br.c:141) 
[ 121.345608][ T69] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 121.345892][ T69] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 121.346186][ T69] ? cleanup_net (net/core/net_namespace.c:684) 
[ 121.346471][ T69] ? process_one_work (kernel/workqueue.c:3238) 
[ 121.346749][ T69] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 121.347024][ T69] ? kthread (kernel/kthread.c:464) 
[ 121.347240][ T69] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 121.347519][ T69] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 121.347797][ T69] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 121.348094][ T69] netif_set_mtu (net/core/dev.c:9652) 
[ 121.348377][ T69] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 121.348672][ T69] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 121.348884][ T69] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 121.349171][ T69] br_del_if (net/bridge/br_if.c:743) 
[ 121.349384][ T69] br_device_event (net/bridge/br.c:141) 
[ 121.349658][ T69] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 121.349943][ T69] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 121.350240][ T69] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 121.350600][ T69] ? 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) 
[ 121.350877][ T69] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 121.351231][ T69] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 121.351601][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 121.351956][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 121.352329][ T69] default_device_exit_batch (net/core/dev.c:12673) 
[ 121.352624][ T69] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 121.352993][ T69] ops_undo_list (net/core/net_namespace.c:250) 
[ 121.353284][ T69] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 121.353560][ T69] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 121.353848][ T69] cleanup_net (net/core/net_namespace.c:684) 
[ 121.354138][ T69] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 121.354427][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 121.354714][ T69] process_one_work (kernel/workqueue.c:3238) 
[ 121.355000][ T69] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 121.355294][ T69] ? assign_work (kernel/workqueue.c:1200) 
[ 121.355574][ T69] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 121.355862][ T69] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 121.356150][ T69] kthread (kernel/kthread.c:464) 
[ 121.356362][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 121.356638][ T69] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 121.356917][ T69] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 121.357205][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 121.357485][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 121.357763][ T69] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 121.358040][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 121.358329][ T69] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  132.192133][ T1066] ------------[ cut here ]------------
| [ 132.192474][ T1066] WARNING: CPU: 2 PID: 1066 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  132.193105][ T1066] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  132.194409][ T1066] Tainted: [W]=WARN
[  132.194658][ T1066] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 132.195055][ T1066] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 132.195399][ T1066] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  132.196519][ T1066] RSP: 0018:ffffc90001e46ef0 EFLAGS: 00010246
[  132.196922][ T1066] RAX: 0000000000000000 RBX: ffff88800e81a000 RCX: 0000000000000001
[  132.197411][ T1066] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[  132.197883][ T1066] RBP: ffffc90001e46fd8 R08: 0000000000000000 R09: 0000000000000000
[  132.198378][ T1066] R10: ffffc90001e47008 R11: ffffffff9998d1e0 R12: 1ffff920003c8de2
[  132.198848][ T1066] R13: 00000000000005dc R14: ffffc90001e47008 R15: ffff88800e81af48
[  132.199332][ T1066] FS:  00007fd748dfe800(0000) GS:ffff8880d1a99000(0000) knlGS:0000000000000000
[  132.199881][ T1066] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  132.200292][ T1066] CR2: 00000000004e6888 CR3: 000000000e444005 CR4: 0000000000772ef0
[  132.200776][ T1066] PKRU: 55555554
[  132.201020][ T1066] Call Trace:
[  132.201273][ T1066]  <TASK>
[ 132.201447][ T1066] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 132.201777][ T1066] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 132.202123][ T1066] netif_set_mtu (net/core/dev.c:9652) 
[ 132.202442][ T1066] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 132.202777][ T1066] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 132.203022][ T1066] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 132.203364][ T1066] br_add_if (net/bridge/br_if.c:697) 
[ 132.203617][ T1066] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 132.203937][ T1066] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 132.204270][ T1066] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 132.204597][ T1066] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 132.204998][ T1066] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 132.205330][ T1066] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 132.205653][ T1066] ? __kernel_text_address (kernel/extable.c:79) 
[ 132.205973][ T1066] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 132.206309][ T1066] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 132.206632][ T1066] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 132.207027][ T1066] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 132.207362][ T1066] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 132.207678][ T1066] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 132.208001][ T1066] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 132.208332][ T1066] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 132.208653][ T1066] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 132.208971][ T1066] ? __create_object (mm/kmemleak.c:771) 
[ 132.209302][ T1066] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 132.209629][ T1066] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 132.209949][ T1066] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 132.210358][ T1066] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 132.210686][ T1066] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 132.211011][ T1066] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 132.211336][ T1066] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 132.211669][ T1066] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 132.211989][ T1066] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 132.212320][ T1066] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 132.212640][ T1066] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 132.212966][ T1066] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 132.213298][ T1066] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 132.213622][ T1066] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 132.213945][ T1066] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 132.214277][ T1066] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 132.214597][ T1066] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 132.214929][ T1066] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 132.215263][ T1066] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 132.215588][ T1066] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 132.215910][ T1066] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 132.216242][ T1066] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 132.216565][ T1066] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 132.216891][ T1066] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 132.217221][ T1066] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 132.217549][ T1066] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 132.217873][ T1066] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 132.218205][ T1066] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 132.218612][ T1066] ___sys_sendmsg (net/socket.c:2670) 
[ 132.218928][ T1066] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 132.219256][ T1066] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 132.219652][ T1066] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 132.219978][ T1066] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 132.220310][ T1066] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 132.220636][ T1066] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 132.220966][ T1066] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 132.221289][ T1066] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 132.221638][ T1066] __sys_sendmsg (net/socket.c:2700) 
[ 132.221957][ T1066] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 132.222358][ T1066] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 132.222695][ T1066] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 132.223021][ T1066] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 132.223346][ T1066] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  132.223727][ T1066] RIP: 0033:0x7fd748fcb1e7
[ 132.224046][ T1066] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  132.225134][ T1066] RSP: 002b:00007ffe46ec8df8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  132.225596][ T1066] RAX: ffffffffffffffda RBX: 00007ffe46ec9530 RCX: 00007fd748fcb1e7
[  132.226054][ T1066] RDX: 0000000000000000 RSI: 00007ffe46ec8e60 RDI: 0000000000000005
[  132.226762][ T1066] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  132.227244][ T1066] R10: 000000000ddf7910 R11: 0000000000000246 R12: 0000000000000005
[  132.227927][ T1066] R13: 00000000686e7e4e R14: 0000000000499600 R15: 0000000000000000
| [  132.597525][ T1069] ------------[ cut here ]------------
| [ 132.597846][ T1069] WARNING: CPU: 3 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) 
| [  132.598494][ T1069] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  132.599790][ T1069] Tainted: [W]=WARN
[  132.600028][ T1069] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 132.600430][ 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) 
[ 132.600756][ T1069] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  132.601898][ T1069] RSP: 0018:ffffc90001bb7080 EFLAGS: 00010246
[  132.602317][ T1069] RAX: 0000000000000000 RBX: ffff88800e81a000 RCX: 0000000000000001
[  132.602788][ T1069] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[  132.603268][ T1069] RBP: ffffc90001bb7168 R08: 0000000000000000 R09: 0000000000000000
[  132.603743][ T1069] R10: ffffc90001bb7198 R11: ffffffff9998d1e0 R12: 1ffff92000376e14
[  132.604251][ T1069] R13: 00000000000005dc R14: ffffc90001bb7198 R15: ffff88800e81af48
[  132.604722][ T1069] FS:  00007fec1cc13800(0000) GS:ffff8880d1b19000(0000) knlGS:0000000000000000
[  132.605286][ T1069] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  132.605686][ T1069] CR2: 000000000043d940 CR3: 000000000a042002 CR4: 0000000000772ef0
[  132.606159][ T1069] PKRU: 55555554
[  132.606389][ T1069] Call Trace:
[  132.606619][ T1069]  <TASK>
[ 132.606779][ T1069] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 132.607098][ T1069] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 132.607420][ T1069] netif_set_mtu (net/core/dev.c:9652) 
[ 132.607734][ T1069] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 132.608086][ T1069] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 132.608326][ T1069] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 132.608646][ T1069] br_add_if (net/bridge/br_if.c:697) 
[ 132.608901][ T1069] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 132.609237][ T1069] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 132.609554][ T1069] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 132.609870][ T1069] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 132.610186][ T1069] ? __dev_get_by_name (net/core/dev.c:865) 
[ 132.610496][ T1069] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 132.610801][ T1069] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 132.611120][ T1069] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 132.611447][ T1069] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 132.611770][ T1069] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 132.612128][ T1069] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 132.612456][ T1069] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 132.612782][ T1069] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 132.613106][ T1069] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 132.613417][ T1069] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 132.613725][ T1069] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 132.614034][ T1069] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 132.614355][ T1069] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 132.614667][ T1069] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 132.614994][ T1069] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 132.615328][ T1069] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 132.615648][ T1069] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 132.615952][ 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) 
[ 132.616268][ T1069] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 132.616577][ T1069] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 132.616885][ T1069] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 132.617205][ T1069] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 132.617523][ T1069] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 132.617831][ T1069] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 132.618157][ T1069] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 132.618468][ T1069] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 132.618774][ T1069] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 132.619174][ T1069] ___sys_sendmsg (net/socket.c:2670) 
[ 132.619486][ T1069] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 132.619792][ T1069] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 132.620111][ T1069] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 132.620417][ T1069] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 132.620727][ T1069] ? __handle_mm_fault (mm/memory.c:6212) 
[ 132.621033][ T1069] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 132.621353][ T1069] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 132.621705][ T1069] __sys_sendmsg (net/socket.c:2700) 
[ 132.622022][ T1069] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 132.622347][ T1069] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 132.622670][ T1069] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 132.622993][ T1069] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 132.623331][ T1069] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 132.623651][ T1069] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  132.624034][ T1069] RIP: 0033:0x7fec1cde01e7
[ 132.624358][ 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)
[  132.625456][ T1069] RSP: 002b:00007ffec50f5538 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  132.625925][ T1069] RAX: ffffffffffffffda RBX: 00007ffec50f5c70 RCX: 00007fec1cde01e7
[  132.626399][ T1069] RDX: 0000000000000000 RSI: 00007ffec50f55a0 RDI: 0000000000000005
[  132.626861][ T1069] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  132.627353][ T1069] R10: 00007fec1ce6eac0 R11: 0000000000000246 R12: 00007ffec50f5ca8
[  132.627835][ T1069] R13: 00000000686e7e4f R14: 0000000000499600 R15: 00007ffec50f5690
| [  134.673241][ T1086] ------------[ cut here ]------------
| [ 134.673564][ T1086] WARNING: CPU: 3 PID: 1086 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  134.674179][ T1086] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  134.675316][ T1086] Tainted: [W]=WARN
[  134.675549][ T1086] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 134.675932][ T1086] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 134.676266][ T1086] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  134.677374][ T1086] RSP: 0018:ffffc90001ee6ef0 EFLAGS: 00010246
[  134.677774][ T1086] RAX: 0000000000000000 RBX: ffff888004e2a000 RCX: 0000000000000001
[  134.678241][ T1086] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[  134.678713][ T1086] RBP: ffffc90001ee6fd8 R08: 0000000000000000 R09: 0000000000000000
[  134.679192][ T1086] R10: ffffc90001ee7008 R11: ffffffff9998d1e0 R12: 1ffff920003dcde2
[  134.679662][ T1086] R13: 00000000000005dc R14: ffffc90001ee7008 R15: ffff888004e2af48
[  134.680139][ T1086] FS:  00007fe6c2cb8800(0000) GS:ffff8880d1b19000(0000) knlGS:0000000000000000
[  134.680674][ T1086] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  134.681063][ T1086] CR2: 00000000004e6888 CR3: 0000000002653005 CR4: 0000000000772ef0
[  134.681531][ T1086] PKRU: 55555554
[  134.681772][ T1086] Call Trace:
[  134.682000][ T1086]  <TASK>
[ 134.682180][ T1086] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 134.682490][ T1086] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 134.682834][ T1086] netif_set_mtu (net/core/dev.c:9652) 
[ 134.683176][ T1086] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 134.683510][ T1086] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 134.683757][ T1086] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 134.684105][ T1086] br_add_if (net/bridge/br_if.c:697) 
[ 134.684361][ T1086] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 134.684671][ T1086] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 134.684993][ T1086] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 134.685327][ T1086] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 134.685744][ T1086] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 134.686061][ T1086] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 134.686390][ T1086] ? __kernel_text_address (kernel/extable.c:79) 
[ 134.686700][ T1086] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 134.687011][ T1086] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 134.687329][ T1086] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 134.687710][ T1086] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 134.688021][ T1086] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 134.688335][ T1086] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 134.688643][ T1086] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 134.688954][ T1086] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 134.689277][ T1086] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 134.689594][ T1086] ? __create_object (mm/kmemleak.c:771) 
[ 134.689913][ T1086] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 134.690243][ T1086] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 134.690580][ T1086] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 134.690981][ T1086] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 134.691313][ T1086] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 134.691646][ T1086] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 134.691976][ T1086] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 134.692310][ T1086] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 134.692641][ T1086] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 134.692958][ T1086] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 134.693287][ T1086] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 134.693607][ T1086] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 134.693933][ T1086] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 134.694262][ T1086] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 134.694587][ T1086] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 134.694894][ T1086] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 134.695211][ T1086] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 134.695533][ T1086] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 134.695835][ T1086] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 134.696150][ T1086] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 134.696459][ T1086] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 134.696761][ T1086] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 134.697083][ T1086] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 134.697395][ T1086] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 134.697704][ T1086] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 134.698016][ T1086] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 134.698333][ T1086] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 134.698638][ T1086] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 134.699029][ T1086] ___sys_sendmsg (net/socket.c:2670) 
[ 134.699357][ T1086] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 134.699662][ T1086] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 134.700046][ T1086] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 134.700362][ T1086] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 134.700681][ T1086] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 134.701005][ T1086] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 134.701319][ T1086] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 134.701645][ T1086] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 134.701970][ T1086] __sys_sendmsg (net/socket.c:2700) 
[ 134.702288][ T1086] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 134.702724][ T1086] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 134.703054][ T1086] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 134.703368][ T1086] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 134.703678][ T1086] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  134.704055][ T1086] RIP: 0033:0x7fe6c2e851e7
[ 134.704600][ T1086] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  134.705946][ T1086] RSP: 002b:00007ffde73bfa48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  134.706415][ T1086] RAX: ffffffffffffffda RBX: 00007ffde73c0180 RCX: 00007fe6c2e851e7
[  134.706873][ T1086] RDX: 0000000000000000 RSI: 00007ffde73bfab0 RDI: 0000000000000005
[  134.707345][ T1086] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  134.707800][ T1086] R10: 000000001866a910 R11: 0000000000000246 R12: 0000000000000005
[  134.708267][ T1086] R13: 00000000686e7e51 R14: 0000000000499600 R15: 0000000000000000
| [  135.070895][ T1089] ------------[ cut here ]------------
| [ 135.071203][ T1089] WARNING: CPU: 0 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) 
| [  135.071809][ T1089] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  135.072949][ T1089] Tainted: [W]=WARN
[  135.073189][ T1089] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 135.073570][ 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) 
[ 135.073885][ T1089] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  135.074980][ T1089] RSP: 0018:ffffc90001f07080 EFLAGS: 00010246
[  135.075379][ T1089] RAX: 0000000000000000 RBX: ffff888004e2a000 RCX: 0000000000000001
[  135.075833][ T1089] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[  135.076314][ T1089] RBP: ffffc90001f07168 R08: 0000000000000000 R09: 0000000000000000
[  135.076769][ T1089] R10: ffffc90001f07198 R11: ffffffff9a2ceab8 R12: 1ffff920003e0e14
[  135.077233][ T1089] R13: 00000000000005dc R14: ffffc90001f07198 R15: ffff888004e2af48
[  135.077689][ T1089] FS:  00007fade50ce800(0000) GS:ffff8880d1999000(0000) knlGS:0000000000000000
[  135.078230][ T1089] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  135.078618][ T1089] CR2: 000000000043d940 CR3: 0000000009e41004 CR4: 0000000000772ef0
[  135.079090][ T1089] PKRU: 55555554
[  135.079319][ T1089] Call Trace:
[  135.079546][ T1089]  <TASK>
[ 135.079705][ T1089] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 135.080016][ T1089] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 135.080344][ T1089] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 135.080737][ T1089] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 135.081047][ T1089] netif_set_mtu (net/core/dev.c:9652) 
[ 135.081360][ T1089] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 135.081683][ T1089] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 135.082084][ T1089] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 135.082317][ T1089] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 135.082625][ T1089] br_add_if (net/bridge/br_if.c:697) 
[ 135.082869][ T1089] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 135.083181][ T1089] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 135.083488][ T1089] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 135.083796][ T1089] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 135.084119][ T1089] ? __dev_get_by_name (net/core/dev.c:865) 
[ 135.084431][ T1089] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 135.084736][ T1089] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 135.085051][ T1089] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 135.085365][ T1089] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 135.085676][ T1089] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 135.085991][ T1089] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 135.086312][ T1089] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 135.086628][ T1089] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 135.086930][ T1089] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 135.087245][ T1089] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 135.087555][ T1089] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 135.087863][ T1089] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 135.088192][ T1089] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 135.088511][ T1089] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 135.088817][ T1089] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 135.089130][ T1089] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 135.089446][ T1089] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 135.089752][ 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) 
[ 135.090055][ T1089] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 135.090373][ T1089] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 135.090682][ T1089] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 135.090988][ T1089] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 135.091304][ T1089] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 135.091636][ T1089] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 135.091956][ T1089] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 135.092287][ T1089] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 135.092591][ T1089] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 135.092980][ T1089] ___sys_sendmsg (net/socket.c:2670) 
[ 135.093301][ T1089] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 135.093608][ T1089] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 135.093916][ T1089] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 135.094241][ T1089] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 135.094554][ T1089] ? __handle_mm_fault (mm/memory.c:6212) 
[ 135.094880][ T1089] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 135.095194][ T1089] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 135.095519][ T1089] __sys_sendmsg (net/socket.c:2700) 
[ 135.095823][ T1089] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 135.096147][ T1089] ? 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) 
[ 135.096466][ T1089] ? 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) 
[ 135.096771][ T1089] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 135.097091][ T1089] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 135.097399][ T1089] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  135.097774][ T1089] RIP: 0033:0x7fade529b1e7
[ 135.098098][ 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)
[  135.099191][ T1089] RSP: 002b:00007fff29dc2bb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  135.099648][ T1089] RAX: ffffffffffffffda RBX: 00007fff29dc32f0 RCX: 00007fade529b1e7
[  135.100122][ T1089] RDX: 0000000000000000 RSI: 00007fff29dc2c20 RDI: 0000000000000005
[  135.100590][ T1089] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  135.101045][ T1089] R10: 00007fade5329ac0 R11: 0000000000000246 R12: 00007fff29dc3328
[  135.101508][ T1089] R13: 00000000686e7e51 R14: 0000000000499600 R15: 00007fff29dc2d10
| [  146.404039][   T69] ------------[ cut here ]------------
| [ 146.404384][ T69] WARNING: CPU: 2 PID: 69 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  146.404903][   T69] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  146.406403][   T69] Tainted: [W]=WARN
[  146.406640][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  146.407017][   T69] Workqueue: netns cleanup_net
[ 146.407345][ T69] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 146.407658][ T69] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  146.408717][   T69] RSP: 0018:ffffc900004a75b0 EFLAGS: 00010246
[  146.409110][   T69] RAX: 0000000000000000 RBX: ffff88800e81a000 RCX: 0000000000000001
[  146.409559][   T69] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[  146.410001][   T69] RBP: ffffc900004a7698 R08: 0000000000000000 R09: 0000000000000000
[  146.410461][   T69] R10: ffffc900004a76c8 R11: ffffffff9998d1e0 R12: 1ffff92000094eba
[  146.410912][   T69] R13: 00000000000005dc R14: ffffc900004a76c8 R15: ffff88800e81af48
[  146.411371][   T69] FS:  0000000000000000(0000) GS:ffff8880d1a99000(0000) knlGS:0000000000000000
[  146.411900][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  146.412288][   T69] CR2: 000055d82eb0b0b8 CR3: 00000000026b1003 CR4: 0000000000772ef0
[  146.412735][   T69] PKRU: 55555554
[  146.412964][   T69] Call Trace:
[  146.413201][   T69]  <TASK>
[ 146.413366][ T69] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 146.413741][ T69] ? br_del_if (net/bridge/br_if.c:742) 
[ 146.413973][ T69] ? br_device_event (net/bridge/br.c:141) 
[ 146.414281][ T69] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 146.414584][ T69] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 146.414879][ T69] ? cleanup_net (net/core/net_namespace.c:684) 
[ 146.415184][ T69] ? process_one_work (kernel/workqueue.c:3238) 
[ 146.415482][ T69] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 146.415783][ T69] ? kthread (kernel/kthread.c:464) 
[ 146.416009][ T69] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 146.416318][ T69] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 146.416620][ T69] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 146.416930][ T69] netif_set_mtu (net/core/dev.c:9652) 
[ 146.417237][ T69] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 146.417552][ T69] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 146.417784][ T69] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 146.418098][ T69] br_del_if (net/bridge/br_if.c:743) 
[ 146.418329][ T69] br_device_event (net/bridge/br.c:141) 
[ 146.418626][ T69] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 146.418932][ T69] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 146.419244][ T69] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 146.419618][ T69] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 146.419917][ T69] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 146.420297][ T69] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 146.420669][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 146.421040][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 146.421433][ T69] default_device_exit_batch (net/core/dev.c:12673) 
[ 146.421742][ T69] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 146.422129][ T69] ops_undo_list (net/core/net_namespace.c:250) 
[ 146.422435][ T69] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 146.422734][ T69] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 146.423041][ T69] cleanup_net (net/core/net_namespace.c:684) 
[ 146.423351][ T69] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 146.423655][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 146.423958][ T69] process_one_work (kernel/workqueue.c:3238) 
[ 146.424280][ T69] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 146.424587][ T69] ? assign_work (kernel/workqueue.c:1200) 
[ 146.424890][ T69] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 146.425214][ T69] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 146.425517][ T69] kthread (kernel/kthread.c:464) 
[ 146.425747][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 146.426048][ T69] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 146.426354][ T69] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 146.426659][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 146.426958][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 146.427269][ T69] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 146.427573][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 146.427871][ T69] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  146.845850][   T69] ------------[ cut here ]------------
| [ 146.846342][ T69] WARNING: CPU: 2 PID: 69 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  146.846862][   T69] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  146.847998][   T69] Tainted: [W]=WARN
[  146.848253][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  146.848637][   T69] Workqueue: netns cleanup_net
[ 146.848957][ T69] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 146.849282][ T69] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  146.850356][   T69] RSP: 0018:ffffc900004a75b0 EFLAGS: 00010246
[  146.850738][   T69] RAX: 0000000000000000 RBX: ffff888004e2a000 RCX: 0000000000000001
[  146.851188][   T69] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[  146.851640][   T69] RBP: ffffc900004a7698 R08: 0000000000000000 R09: 0000000000000000
[  146.852102][   T69] R10: ffffc900004a76c8 R11: ffffffff9998d1e0 R12: 1ffff92000094eba
[  146.852547][   T69] R13: 00000000000005dc R14: ffffc900004a76c8 R15: ffff888004e2af48
[  146.852991][   T69] FS:  0000000000000000(0000) GS:ffff8880d1a99000(0000) knlGS:0000000000000000
[  146.853517][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  146.853901][   T69] CR2: 000055d82eb0b0b8 CR3: 000000004434a004 CR4: 0000000000772ef0
[  146.854361][   T69] PKRU: 55555554
[  146.854590][   T69] Call Trace:
[  146.854820][   T69]  <TASK>
[ 146.854995][ T69] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 146.855395][ T69] ? br_del_if (net/bridge/br_if.c:742) 
[ 146.855632][ T69] ? br_device_event (net/bridge/br.c:141) 
[ 146.855930][ T69] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 146.856252][ T69] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 146.856553][ T69] ? cleanup_net (net/core/net_namespace.c:684) 
[ 146.856856][ T69] ? process_one_work (kernel/workqueue.c:3238) 
[ 146.857167][ T69] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 146.857470][ T69] ? kthread (kernel/kthread.c:464) 
[ 146.857708][ T69] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 146.858016][ T69] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 146.858337][ T69] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 146.858651][ T69] netif_set_mtu (net/core/dev.c:9652) 
[ 146.858962][ T69] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 146.859290][ T69] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 146.859536][ T69] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 146.859845][ T69] br_del_if (net/bridge/br_if.c:743) 
[ 146.860080][ T69] br_device_event (net/bridge/br.c:141) 
[ 146.860393][ T69] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 146.860707][ T69] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 146.861016][ T69] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 146.861400][ T69] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 146.861713][ T69] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 146.862096][ T69] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 146.862465][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 146.862840][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 146.863228][ T69] default_device_exit_batch (net/core/dev.c:12673) 
[ 146.863535][ T69] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 146.863912][ T69] ops_undo_list (net/core/net_namespace.c:250) 
[ 146.864227][ T69] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 146.864526][ T69] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 146.864840][ T69] cleanup_net (net/core/net_namespace.c:684) 
[ 146.865157][ T69] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 146.865463][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 146.865768][ T69] process_one_work (kernel/workqueue.c:3238) 
[ 146.866090][ T69] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 146.866404][ T69] ? assign_work (kernel/workqueue.c:1200) 
[ 146.866719][ T69] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 146.867030][ T69] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 146.867340][ T69] kthread (kernel/kthread.c:464) 
[ 146.867984][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 146.868291][ T69] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 146.868592][ T69] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 146.868893][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 146.869204][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 146.869710][ T69] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 146.870010][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 146.870318][ T69] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  157.318927][ T1270] ------------[ cut here ]------------
| [ 157.319284][ T1270] WARNING: CPU: 2 PID: 1270 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) 
| [  157.319892][ T1270] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  157.320989][ T1270] Tainted: [W]=WARN
[  157.321238][ T1270] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 157.321636][ T1270] 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) 
[ 157.321957][ T1270] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  157.323037][ T1270] RSP: 0018:ffffc90002546ef0 EFLAGS: 00010246
[  157.323430][ T1270] RAX: 0000000000000000 RBX: ffff88800aee2000 RCX: 0000000000000001
[  157.323884][ T1270] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[  157.324363][ T1270] RBP: ffffc90002546fd8 R08: 0000000000000000 R09: 0000000000000000
[  157.324826][ T1270] R10: ffffc90002547008 R11: ffffffff9998d1e0 R12: 1ffff920004a8de2
[  157.325406][ T1270] R13: 00000000000005dc R14: ffffc90002547008 R15: ffff88800aee2f48
[  157.325860][ T1270] FS:  00007fe7c07b6800(0000) GS:ffff8880d1a99000(0000) knlGS:0000000000000000
[  157.326400][ T1270] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  157.326779][ T1270] CR2: 00000000004e6888 CR3: 0000000012016004 CR4: 0000000000772ef0
[  157.327241][ T1270] PKRU: 55555554
[  157.327476][ T1270] Call Trace:
[  157.327709][ T1270]  <TASK>
[ 157.327875][ T1270] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 157.328207][ T1270] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 157.328537][ T1270] netif_set_mtu (net/core/dev.c:9652) 
[ 157.328845][ T1270] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 157.329175][ T1270] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 157.329414][ T1270] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 157.329722][ T1270] br_add_if (net/bridge/br_if.c:697) 
[ 157.329969][ T1270] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 157.330283][ T1270] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 157.330595][ T1270] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 157.330910][ T1270] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 157.331305][ T1270] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 157.331616][ T1270] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 157.331920][ T1270] ? __kernel_text_address (kernel/extable.c:79) 
[ 157.332264][ T1270] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 157.332580][ T1270] ? __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) 
[ 157.332887][ T1270] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 157.333282][ T1270] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 157.333595][ T1270] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 157.333901][ T1270] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 157.334215][ T1270] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 157.334524][ T1270] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 157.334828][ T1270] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 157.335143][ T1270] ? __create_object (mm/kmemleak.c:771) 
[ 157.335455][ T1270] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 157.335761][ T1270] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 157.336088][ T1270] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 157.336476][ T1270] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 157.336791][ T1270] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 157.337119][ T1270] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 157.337428][ T1270] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 157.337741][ T1270] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 157.338050][ T1270] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 157.338365][ T1270] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 157.338673][ T1270] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 157.338979][ T1270] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 157.339297][ T1270] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 157.339605][ T1270] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 157.339918][ T1270] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 157.340249][ T1270] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 157.340564][ T1270] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 157.340880][ T1270] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 157.341199][ T1270] ? 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) 
[ 157.341515][ T1270] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 157.341842][ T1270] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 157.342158][ T1270] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 157.342474][ T1270] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 157.342784][ T1270] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 157.343102][ T1270] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 157.343416][ T1270] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 157.343728][ T1270] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 157.344030][ T1270] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 157.344442][ T1270] ___sys_sendmsg (net/socket.c:2670) 
[ 157.344747][ T1270] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 157.345057][ T1270] ? __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) 
[ 157.345449][ T1270] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 157.345764][ T1270] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 157.346081][ T1270] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 157.346395][ T1270] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 157.346698][ T1270] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 157.347004][ T1270] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 157.347330][ T1270] __sys_sendmsg (net/socket.c:2700) 
[ 157.347635][ T1270] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 157.348008][ T1270] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 157.348346][ T1270] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 157.348654][ T1270] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 157.348962][ T1270] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  157.349351][ T1270] RIP: 0033:0x7fe7c09831e7
[ 157.349668][ T1270] 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)
[  157.350735][ T1270] RSP: 002b:00007ffd73a0a3d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  157.351199][ T1270] RAX: ffffffffffffffda RBX: 00007ffd73a0ab10 RCX: 00007fe7c09831e7
[  157.351663][ T1270] RDX: 0000000000000000 RSI: 00007ffd73a0a440 RDI: 0000000000000005
[  157.352130][ T1270] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  157.352584][ T1270] R10: 000000001fce6910 R11: 0000000000000246 R12: 0000000000000005
[  157.353035][ T1270] R13: 00000000686e7e67 R14: 0000000000499600 R15: 0000000000000000
| [  157.708729][ T1273] ------------[ cut here ]------------
| [ 157.709022][ T1273] WARNING: CPU: 0 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) 
| [  157.709622][ T1273] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  157.710733][ T1273] Tainted: [W]=WARN
[  157.710962][ T1273] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 157.711364][ 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) 
[ 157.711682][ T1273] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  157.712763][ T1273] RSP: 0018:ffffc90002577080 EFLAGS: 00010246
[  157.713152][ T1273] RAX: 0000000000000000 RBX: ffff88800aee2000 RCX: 0000000000000001
[  157.713603][ T1273] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[  157.714051][ T1273] RBP: ffffc90002577168 R08: 0000000000000000 R09: 0000000000000000
[  157.714523][ T1273] R10: ffffc90002577198 R11: ffffffff9a2ceab8 R12: 1ffff920004aee14
[  157.714973][ T1273] R13: 00000000000005dc R14: ffffc90002577198 R15: ffff88800aee2f48
[  157.716282][ T1273] FS:  00007f91d728c800(0000) GS:ffff8880d1999000(0000) knlGS:0000000000000000
[  157.716812][ T1273] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  157.717221][ T1273] CR2: 000000000043d940 CR3: 0000000012060006 CR4: 0000000000772ef0
[  157.717674][ T1273] PKRU: 55555554
[  157.717899][ T1273] Call Trace:
[  157.718137][ T1273]  <TASK>
[ 157.718294][ T1273] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 157.718601][ T1273] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 157.718902][ T1273] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 157.719295][ T1273] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 157.719600][ T1273] netif_set_mtu (net/core/dev.c:9652) 
[ 157.719899][ T1273] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 157.720217][ T1273] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 157.720598][ T1273] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 157.720827][ T1273] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 157.721144][ T1273] br_add_if (net/bridge/br_if.c:697) 
[ 157.721391][ T1273] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 157.721699][ T1273] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 157.722001][ T1273] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 157.722316][ T1273] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 157.722613][ T1273] ? __dev_get_by_name (net/core/dev.c:865) 
[ 157.722917][ T1273] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 157.723226][ T1273] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 157.723531][ T1273] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 157.723832][ T1273] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 157.724146][ T1273] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 157.724458][ T1273] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 157.724765][ T1273] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 157.725089][ T1273] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 157.725394][ T1273] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 157.725697][ T1273] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 157.725998][ T1273] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 157.726319][ T1273] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 157.726627][ T1273] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 157.726933][ T1273] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 157.727241][ T1273] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 157.727546][ T1273] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 157.727859][ T1273] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 157.728171][ 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) 
[ 157.728476][ T1273] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 157.728781][ T1273] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 157.729098][ T1273] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 157.729413][ T1273] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 157.729721][ T1273] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 157.730024][ T1273] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 157.730344][ T1273] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 157.730653][ T1273] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 157.730951][ T1273] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 157.731349][ T1273] ___sys_sendmsg (net/socket.c:2670) 
[ 157.731661][ T1273] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 157.731961][ T1273] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 157.732271][ T1273] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 157.732578][ T1273] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 157.732883][ T1273] ? __handle_mm_fault (mm/memory.c:6212) 
[ 157.733193][ T1273] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 157.733492][ T1273] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 157.733817][ T1273] __sys_sendmsg (net/socket.c:2700) 
[ 157.734132][ T1273] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 157.734435][ T1273] ? 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) 
[ 157.734745][ T1273] ? 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) 
[ 157.735045][ T1273] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 157.735358][ T1273] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 157.735663][ T1273] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  157.736034][ T1273] RIP: 0033:0x7f91d74591e7
[ 157.736353][ 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)
[  157.737442][ T1273] RSP: 002b:00007ffed2f3ae78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  157.737901][ T1273] RAX: ffffffffffffffda RBX: 00007ffed2f3b5b0 RCX: 00007f91d74591e7
[  157.738359][ T1273] RDX: 0000000000000000 RSI: 00007ffed2f3aee0 RDI: 0000000000000005
[  157.738812][ T1273] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  157.739271][ T1273] R10: 00007f91d74e7ac0 R11: 0000000000000246 R12: 00007ffed2f3b5e8
[  157.739722][ T1273] R13: 00000000686e7e68 R14: 0000000000499600 R15: 00007ffed2f3afd0
| [  159.726177][ T1290] ------------[ cut here ]------------
| [ 159.726481][ T1290] WARNING: CPU: 0 PID: 1290 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  159.727083][ T1290] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  159.728181][ T1290] Tainted: [W]=WARN
[  159.728402][ T1290] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 159.728776][ T1290] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 159.729092][ T1290] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  159.730153][ T1290] RSP: 0018:ffffc90002686ef0 EFLAGS: 00010246
[  159.730525][ T1290] RAX: 0000000000000000 RBX: ffff888011f3a000 RCX: 0000000000000001
[  159.730968][ T1290] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[  159.731413][ T1290] RBP: ffffc90002686fd8 R08: 0000000000000000 R09: 0000000000000000
[  159.731858][ T1290] R10: ffffc90002687008 R11: ffffffff9998d1e0 R12: 1ffff920004d0de2
[  159.732303][ T1290] R13: 00000000000005dc R14: ffffc90002687008 R15: ffff888011f3af48
[  159.732746][ T1290] FS:  00007f0a4124b800(0000) GS:ffff8880d1999000(0000) knlGS:0000000000000000
[  159.733264][ T1290] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  159.733633][ T1290] CR2: 00000000004e6888 CR3: 000000001221f001 CR4: 0000000000772ef0
[  159.734097][ T1290] PKRU: 55555554
[  159.734319][ T1290] Call Trace:
[  159.734537][ T1290]  <TASK>
[ 159.734691][ T1290] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 159.734990][ T1290] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 159.735304][ T1290] netif_set_mtu (net/core/dev.c:9652) 
[ 159.735594][ T1290] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 159.735900][ T1290] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 159.736147][ T1290] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 159.736443][ T1290] br_add_if (net/bridge/br_if.c:697) 
[ 159.736674][ T1290] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 159.736967][ T1290] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 159.737279][ T1290] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 159.737577][ T1290] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 159.737947][ T1290] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 159.738248][ T1290] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 159.738539][ T1290] ? __kernel_text_address (kernel/extable.c:79) 
[ 159.738835][ T1290] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 159.739143][ T1290] ? __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) 
[ 159.739440][ T1290] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 159.739801][ T1290] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 159.740101][ T1290] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 159.740391][ T1290] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 159.740682][ T1290] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 159.740978][ T1290] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 159.741282][ T1290] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 159.741570][ T1290] ? __create_object (mm/kmemleak.c:771) 
[ 159.741873][ T1290] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 159.742187][ T1290] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 159.742485][ T1290] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 159.742849][ T1290] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 159.743158][ T1290] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 159.743458][ T1290] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 159.743751][ T1290] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 159.744052][ T1290] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 159.744353][ T1290] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 159.744643][ T1290] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 159.744939][ T1290] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 159.745238][ T1290] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 159.745537][ T1290] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 159.745833][ T1290] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 159.746151][ T1290] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 159.746445][ T1290] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 159.746738][ T1290] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 159.747042][ T1290] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 159.747340][ T1290] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 159.747633][ T1290] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 159.747929][ T1290] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 159.748231][ T1290] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 159.748529][ T1290] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 159.748824][ T1290] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 159.749124][ T1290] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 159.749425][ T1290] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 159.749720][ T1290] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 159.750011][ T1290] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 159.750405][ T1290] ___sys_sendmsg (net/socket.c:2670) 
[ 159.750698][ T1290] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 159.750989][ T1290] ? __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) 
[ 159.751361][ T1290] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 159.751663][ T1290] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 159.751958][ T1290] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 159.752262][ T1290] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 159.752559][ T1290] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 159.752853][ T1290] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 159.753162][ T1290] __sys_sendmsg (net/socket.c:2700) 
[ 159.753452][ T1290] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 159.753812][ T1290] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 159.754137][ T1290] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 159.754434][ T1290] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 159.754730][ T1290] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  159.755099][ T1290] RIP: 0033:0x7f0a414181e7
[ 159.755402][ T1290] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  159.756452][ T1290] RSP: 002b:00007ffdd3e51ed8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  159.756897][ T1290] RAX: ffffffffffffffda RBX: 00007ffdd3e52610 RCX: 00007f0a414181e7
[  159.757345][ T1290] RDX: 0000000000000000 RSI: 00007ffdd3e51f40 RDI: 0000000000000005
[  159.757780][ T1290] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  159.758233][ T1290] R10: 000000002d825910 R11: 0000000000000246 R12: 0000000000000005
[  159.758682][ T1290] R13: 00000000686e7e6a R14: 0000000000499600 R15: 0000000000000000
| [  160.136894][ T1293] ------------[ cut here ]------------
| [ 160.137208][ 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) 
| [  160.137804][ T1293] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  160.138888][ T1293] Tainted: [W]=WARN
[  160.139143][ T1293] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 160.139520][ 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) 
[ 160.139830][ T1293] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  160.140911][ T1293] RSP: 0018:ffffc900026b7080 EFLAGS: 00010246
[  160.141312][ T1293] RAX: 0000000000000000 RBX: ffff888011f3a000 RCX: 0000000000000001
[  160.141770][ T1293] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[  160.142232][ T1293] RBP: ffffc900026b7168 R08: 0000000000000000 R09: 0000000000000000
[  160.142684][ T1293] R10: ffffc900026b7198 R11: ffffffff9a2ceab8 R12: 1ffff920004d6e14
[  160.143163][ T1293] R13: 00000000000005dc R14: ffffc900026b7198 R15: ffff888011f3af48
[  160.143613][ T1293] FS:  00007ff075bff800(0000) GS:ffff8880d1b19000(0000) knlGS:0000000000000000
[  160.144149][ T1293] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  160.144526][ T1293] CR2: 000000000043d940 CR3: 00000000122eb002 CR4: 0000000000772ef0
[  160.144988][ T1293] PKRU: 55555554
[  160.145227][ T1293] Call Trace:
[  160.145455][ T1293]  <TASK>
[ 160.145613][ T1293] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 160.145920][ T1293] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 160.146235][ T1293] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 160.146609][ T1293] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 160.146914][ T1293] netif_set_mtu (net/core/dev.c:9652) 
[ 160.147229][ T1293] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 160.147549][ T1293] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 160.147931][ T1293] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 160.148170][ T1293] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 160.148478][ T1293] br_add_if (net/bridge/br_if.c:697) 
[ 160.148718][ T1293] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 160.149019][ T1293] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 160.149333][ T1293] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 160.149647][ T1293] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 160.149948][ T1293] ? __dev_get_by_name (net/core/dev.c:865) 
[ 160.150262][ T1293] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 160.150562][ T1293] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 160.150868][ T1293] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 160.151174][ T1293] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 160.151479][ T1293] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 160.151811][ T1293] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 160.152132][ T1293] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 160.152444][ T1293] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 160.152743][ T1293] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 160.153045][ T1293] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 160.153356][ T1293] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 160.153659][ T1293] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 160.153964][ T1293] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 160.154288][ T1293] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 160.154590][ T1293] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 160.154892][ T1293] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 160.155214][ T1293] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 160.155513][ 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) 
[ 160.155814][ T1293] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 160.156137][ T1293] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 160.156444][ T1293] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 160.156749][ T1293] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 160.157053][ T1293] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 160.157361][ T1293] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 160.157668][ T1293] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 160.157972][ T1293] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 160.158283][ T1293] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 160.158676][ T1293] ___sys_sendmsg (net/socket.c:2670) 
[ 160.158978][ T1293] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 160.159288][ T1293] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 160.159590][ T1293] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 160.159888][ T1293] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 160.160204][ T1293] ? __handle_mm_fault (mm/memory.c:6212) 
[ 160.160503][ T1293] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 160.160809][ T1293] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 160.161141][ T1293] __sys_sendmsg (net/socket.c:2700) 
[ 160.161441][ T1293] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 160.161748][ T1293] ? 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) 
[ 160.162056][ T1293] ? 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) 
[ 160.162368][ T1293] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 160.162675][ T1293] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 160.162987][ T1293] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  160.163370][ T1293] RIP: 0033:0x7ff075dcc1e7
[ 160.163679][ 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)
[  160.165047][ T1293] RSP: 002b:00007ffc7c7caf58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  160.165517][ T1293] RAX: ffffffffffffffda RBX: 00007ffc7c7cb690 RCX: 00007ff075dcc1e7
[  160.166198][ T1293] RDX: 0000000000000000 RSI: 00007ffc7c7cafc0 RDI: 0000000000000005
[  160.166647][ T1293] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  160.167104][ T1293] R10: 00007ff075e5aac0 R11: 0000000000000246 R12: 00007ffc7c7cb6c8
[  160.167790][ T1293] R13: 00000000686e7e6a R14: 0000000000499600 R15: 00007ffc7c7cb0b0
| [  175.981610][   T69] ------------[ cut here ]------------
| [ 175.981940][ T69] WARNING: CPU: 1 PID: 69 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) 
| [  175.982574][   T69] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  175.983806][   T69] Tainted: [W]=WARN
[  175.984025][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  175.984408][   T69] Workqueue: netns cleanup_net
[ 175.984711][ T69] 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) 
[ 175.985009][ T69] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  175.986044][   T69] RSP: 0000:ffffc900004a75b0 EFLAGS: 00010246
[  175.986417][   T69] RAX: 0000000000000000 RBX: ffff88800aee2000 RCX: 0000000000000001
[  175.986847][   T69] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[  175.987286][   T69] RBP: ffffc900004a7698 R08: 0000000000000000 R09: 0000000000000000
[  175.987718][   T69] R10: ffffc900004a76c8 R11: ffffffff9998d1e0 R12: 1ffff92000094eba
[  175.988159][   T69] R13: 00000000000005dc R14: ffffc900004a76c8 R15: ffff88800aee2f48
[  175.988587][   T69] FS:  0000000000000000(0000) GS:ffff8880d1a19000(0000) knlGS:0000000000000000
[  175.989098][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  175.989464][   T69] CR2: 00007ffc16a0cd28 CR3: 000000004434a001 CR4: 0000000000772ef0
[  175.989893][   T69] PKRU: 55555554
[  175.990120][   T69] Call Trace:
[  175.990335][   T69]  <TASK>
[ 175.990483][ T69] ? __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) 
[ 175.990843][ T69] ? br_del_if (net/bridge/br_if.c:742) 
[ 175.991061][ T69] ? br_device_event (net/bridge/br.c:141) 
[ 175.991356][ T69] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 175.991655][ T69] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 175.991941][ T69] ? cleanup_net (net/core/net_namespace.c:684) 
[ 175.992236][ T69] ? process_one_work (kernel/workqueue.c:3238) 
[ 175.992528][ T69] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 175.992810][ T69] ? kthread (kernel/kthread.c:464) 
[ 175.993022][ T69] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 175.993317][ T69] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 175.993605][ T69] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 175.993905][ T69] netif_set_mtu (net/core/dev.c:9652) 
[ 175.994201][ T69] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 175.994507][ T69] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 175.994729][ T69] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 175.995020][ T69] br_del_if (net/bridge/br_if.c:743) 
[ 175.995245][ T69] br_device_event (net/bridge/br.c:141) 
[ 175.995533][ T69] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 175.995835][ T69] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 175.996135][ T69] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 175.996498][ T69] ? 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) 
[ 175.996782][ T69] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 175.997143][ T69] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 175.997495][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 175.997852][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 175.998222][ T69] default_device_exit_batch (net/core/dev.c:12673) 
[ 175.998509][ T69] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 175.998870][ T69] ops_undo_list (net/core/net_namespace.c:250) 
[ 175.999166][ T69] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 175.999449][ T69] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 175.999742][ T69] cleanup_net (net/core/net_namespace.c:684) 
[ 176.000030][ T69] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 176.000326][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 176.000614][ T69] process_one_work (kernel/workqueue.c:3238) 
[ 176.000908][ T69] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 176.001206][ T69] ? assign_work (kernel/workqueue.c:1200) 
[ 176.001494][ T69] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 176.001793][ T69] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 176.002089][ T69] kthread (kernel/kthread.c:464) 
[ 176.002311][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 176.002591][ T69] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 176.002872][ T69] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 176.003168][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 176.003456][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 176.003742][ T69] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 176.004024][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 176.004315][ T69] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  176.515211][   T69] ------------[ cut here ]------------
| [ 176.515506][ T69] WARNING: CPU: 3 PID: 69 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  176.516033][   T69] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  176.517170][   T69] Tainted: [W]=WARN
[  176.517402][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  176.517770][   T69] Workqueue: netns cleanup_net
[ 176.518085][ T69] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 176.518387][ T69] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  176.519444][   T69] RSP: 0018:ffffc900004a75b0 EFLAGS: 00010246
[  176.519810][   T69] RAX: 0000000000000000 RBX: ffff888011f3a000 RCX: 0000000000000001
[  176.520250][   T69] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[  176.520686][   T69] RBP: ffffc900004a7698 R08: 0000000000000000 R09: 0000000000000000
[  176.521124][   T69] R10: ffffc900004a76c8 R11: ffffffff9998d1e0 R12: 1ffff92000094eba
[  176.521551][   T69] R13: 00000000000005dc R14: ffffc900004a76c8 R15: ffff888011f3af48
[  176.521988][   T69] FS:  0000000000000000(0000) GS:ffff8880d1b19000(0000) knlGS:0000000000000000
[  176.522508][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  176.522870][   T69] CR2: 00005593505e09c8 CR3: 000000004434a003 CR4: 0000000000772ef0
[  176.523313][   T69] PKRU: 55555554
[  176.523531][   T69] Call Trace:
[  176.523755][   T69]  <TASK>
[ 176.523912][ T69] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 176.524286][ T69] ? br_del_if (net/bridge/br_if.c:742) 
[ 176.524511][ T69] ? br_device_event (net/bridge/br.c:141) 
[ 176.524799][ T69] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 176.525118][ T69] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 176.525408][ T69] ? cleanup_net (net/core/net_namespace.c:684) 
[ 176.525695][ T69] ? process_one_work (kernel/workqueue.c:3238) 
[ 176.525987][ T69] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 176.526281][ T69] ? kthread (kernel/kthread.c:464) 
[ 176.526512][ T69] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 176.526802][ T69] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 176.527106][ T69] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 176.527421][ T69] netif_set_mtu (net/core/dev.c:9652) 
[ 176.527712][ T69] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 176.528031][ T69] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 176.528263][ T69] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 176.528568][ T69] br_del_if (net/bridge/br_if.c:743) 
[ 176.528806][ T69] br_device_event (net/bridge/br.c:141) 
[ 176.529104][ T69] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 176.529412][ T69] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 176.529707][ T69] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 176.530087][ T69] ? 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) 
[ 176.530382][ T69] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 176.530754][ T69] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 176.531137][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 176.531517][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 176.531903][ T69] default_device_exit_batch (net/core/dev.c:12673) 
[ 176.532214][ T69] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 176.532607][ T69] ops_undo_list (net/core/net_namespace.c:250) 
[ 176.532913][ T69] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 176.533238][ T69] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 176.533544][ T69] cleanup_net (net/core/net_namespace.c:684) 
[ 176.533846][ T69] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 176.534159][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 176.534472][ T69] process_one_work (kernel/workqueue.c:3238) 
[ 176.534785][ T69] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 176.535113][ T69] ? assign_work (kernel/workqueue.c:1200) 
[ 176.535413][ T69] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 176.535708][ T69] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 176.535998][ T69] kthread (kernel/kthread.c:464) 
[ 176.536242][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 176.536530][ T69] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 176.536818][ T69] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 176.537118][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 176.537408][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 176.537702][ T69] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 176.537989][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 176.538283][ T69] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  187.049258][ T1530] ------------[ cut here ]------------
| [ 187.049590][ T1530] WARNING: CPU: 2 PID: 1530 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  187.050207][ T1530] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  187.051296][ T1530] Tainted: [W]=WARN
[  187.051544][ T1530] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 187.051937][ T1530] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 187.052264][ T1530] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  187.053336][ T1530] RSP: 0018:ffffc90002e26ef0 EFLAGS: 00010246
[  187.053720][ T1530] RAX: 0000000000000000 RBX: ffff88800da12000 RCX: 0000000000000001
[  187.054185][ T1530] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[  187.054646][ T1530] RBP: ffffc90002e26fd8 R08: 0000000000000000 R09: 0000000000000000
[  187.055107][ T1530] R10: ffffc90002e27008 R11: ffffffff9998d1e0 R12: 1ffff920005c4de2
[  187.055561][ T1530] R13: 00000000000005dc R14: ffffc90002e27008 R15: ffff88800da12f48
[  187.056015][ T1530] FS:  00007fa9dd5b1800(0000) GS:ffff8880d1a99000(0000) knlGS:0000000000000000
[  187.056557][ T1530] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  187.056943][ T1530] CR2: 00000000004e6888 CR3: 0000000010131005 CR4: 0000000000772ef0
[  187.057412][ T1530] PKRU: 55555554
[  187.057646][ T1530] Call Trace:
[  187.057884][ T1530]  <TASK>
[ 187.058052][ T1530] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 187.058385][ T1530] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 187.058715][ T1530] netif_set_mtu (net/core/dev.c:9652) 
[ 187.059021][ T1530] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 187.059351][ T1530] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 187.059587][ T1530] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 187.059900][ T1530] br_add_if (net/bridge/br_if.c:697) 
[ 187.060156][ T1530] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 187.060460][ T1530] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 187.060776][ T1530] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 187.061096][ T1530] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 187.061481][ T1530] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 187.061795][ T1530] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 187.062110][ T1530] ? __kernel_text_address (kernel/extable.c:79) 
[ 187.062419][ T1530] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 187.062728][ T1530] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 187.063039][ T1530] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 187.063427][ T1530] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 187.063739][ T1530] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 187.064047][ T1530] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 187.064361][ T1530] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 187.064672][ T1530] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 187.064977][ T1530] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 187.065297][ T1530] ? __create_object (mm/kmemleak.c:771) 
[ 187.065611][ T1530] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 187.065922][ T1530] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 187.066239][ T1530] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 187.066614][ T1530] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 187.066930][ T1530] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 187.067252][ T1530] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 187.067558][ T1530] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 187.067876][ T1530] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 187.068192][ T1530] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 187.068498][ T1530] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 187.068803][ T1530] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 187.069117][ T1530] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 187.069426][ T1530] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 187.069737][ T1530] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 187.070045][ T1530] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 187.070366][ T1530] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 187.070673][ T1530] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 187.070989][ T1530] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 187.071304][ T1530] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 187.071615][ T1530] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 187.071932][ T1530] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 187.072246][ T1530] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 187.072562][ T1530] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 187.072869][ T1530] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 187.073187][ T1530] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 187.073497][ T1530] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 187.073805][ T1530] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 187.074118][ T1530] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 187.074510][ T1530] ___sys_sendmsg (net/socket.c:2670) 
[ 187.074815][ T1530] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 187.075130][ T1530] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 187.075509][ T1530] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 187.075817][ T1530] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 187.076133][ T1530] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 187.076445][ T1530] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 187.076750][ T1530] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 187.077063][ T1530] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 187.077386][ T1530] __sys_sendmsg (net/socket.c:2700) 
[ 187.077691][ T1530] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 187.078064][ T1530] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 187.078394][ T1530] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 187.078698][ T1530] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 187.079010][ T1530] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  187.079397][ T1530] RIP: 0033:0x7fa9dd77e1e7
[ 187.079716][ T1530] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  187.080780][ T1530] RSP: 002b:00007ffcee964178 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  187.081245][ T1530] RAX: ffffffffffffffda RBX: 00007ffcee9648b0 RCX: 00007fa9dd77e1e7
[  187.081714][ T1530] RDX: 0000000000000000 RSI: 00007ffcee9641e0 RDI: 0000000000000005
[  187.082181][ T1530] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  187.082629][ T1530] R10: 000000002d090910 R11: 0000000000000246 R12: 0000000000000005
[  187.083094][ T1530] R13: 00000000686e7e85 R14: 0000000000499600 R15: 0000000000000000
| [  187.456535][ T1533] ------------[ cut here ]------------
| [ 187.456843][ T1533] WARNING: CPU: 1 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) 
| [  187.457464][ T1533] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  187.458545][ T1533] Tainted: [W]=WARN
[  187.458772][ T1533] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 187.459153][ 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) 
[ 187.459472][ T1533] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  187.460545][ T1533] RSP: 0018:ffffc90002d67080 EFLAGS: 00010246
[  187.460928][ T1533] RAX: 0000000000000000 RBX: ffff88800da12000 RCX: 0000000000000001
[  187.461389][ T1533] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[  187.461845][ T1533] RBP: ffffc90002d67168 R08: 0000000000000000 R09: 0000000000000000
[  187.462301][ T1533] R10: ffffc90002d67198 R11: ffffffff9998d1e0 R12: 1ffff920005ace14
[  187.462751][ T1533] R13: 00000000000005dc R14: ffffc90002d67198 R15: ffff88800da12f48
[  187.463233][ T1533] FS:  00007efc4c5f4800(0000) GS:ffff8880d1a19000(0000) knlGS:0000000000000000
[  187.463763][ T1533] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  187.464150][ T1533] CR2: 00007efc4c84fb78 CR3: 000000000adcd003 CR4: 0000000000772ef0
[  187.464603][ T1533] PKRU: 55555554
[  187.464833][ T1533] Call Trace:
[  187.465058][ T1533]  <TASK>
[ 187.465221][ T1533] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 187.465533][ T1533] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 187.465851][ T1533] netif_set_mtu (net/core/dev.c:9652) 
[ 187.466164][ T1533] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 187.466482][ T1533] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 187.466715][ T1533] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 187.467024][ T1533] br_add_if (net/bridge/br_if.c:697) 
[ 187.467271][ T1533] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 187.467573][ T1533] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 187.467883][ T1533] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 187.468230][ T1533] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 187.468532][ T1533] ? __dev_get_by_name (net/core/dev.c:865) 
[ 187.468838][ T1533] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 187.469153][ T1533] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 187.469467][ T1533] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 187.469764][ T1533] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 187.470087][ T1533] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 187.470399][ T1533] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 187.470705][ T1533] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 187.471020][ T1533] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 187.471326][ T1533] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 187.471627][ T1533] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 187.471948][ T1533] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 187.472260][ T1533] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 187.472574][ T1533] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 187.472880][ T1533] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 187.473191][ T1533] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 187.473501][ T1533] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 187.473813][ T1533] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 187.474128][ 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) 
[ 187.474439][ T1533] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 187.474742][ T1533] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 187.475041][ T1533] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 187.475355][ T1533] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 187.475659][ T1533] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 187.475959][ T1533] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 187.476305][ T1533] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 187.476606][ T1533] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 187.476910][ T1533] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 187.477305][ T1533] ___sys_sendmsg (net/socket.c:2670) 
[ 187.477613][ T1533] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 187.477912][ T1533] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 187.478225][ T1533] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 187.478523][ T1533] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 187.478835][ T1533] ? __handle_mm_fault (mm/memory.c:6212) 
[ 187.479147][ T1533] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 187.479446][ T1533] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 187.479767][ T1533] __sys_sendmsg (net/socket.c:2700) 
[ 187.480080][ T1533] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 187.480383][ T1533] ? 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) 
[ 187.480694][ T1533] ? 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) 
[ 187.481000][ T1533] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 187.481318][ T1533] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 187.481625][ T1533] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  187.482007][ T1533] RIP: 0033:0x7efc4c7c11e7
[ 187.482328][ 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)
[  187.483415][ T1533] RSP: 002b:00007ffdb3e518e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  187.483868][ T1533] RAX: ffffffffffffffda RBX: 00007ffdb3e52020 RCX: 00007efc4c7c11e7
[  187.484325][ T1533] RDX: 0000000000000000 RSI: 00007ffdb3e51950 RDI: 0000000000000005
[  187.484773][ T1533] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  187.485235][ T1533] R10: 00007efc4c84fac0 R11: 0000000000000246 R12: 00007ffdb3e52058
[  187.485694][ T1533] R13: 00000000686e7e85 R14: 0000000000499600 R15: 00007ffdb3e51a40
| [  189.408321][ T1550] ------------[ cut here ]------------
| [ 189.408626][ T1550] WARNING: CPU: 0 PID: 1550 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  189.409216][ T1550] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  189.410296][ T1550] Tainted: [W]=WARN
[  189.410529][ T1550] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 189.410894][ T1550] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 189.411207][ T1550] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  189.412273][ T1550] RSP: 0018:ffffc90002ee6ef0 EFLAGS: 00010246
[  189.412646][ T1550] RAX: 0000000000000000 RBX: ffff888005232000 RCX: 0000000000000001
[  189.413095][ T1550] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[  189.413532][ T1550] RBP: ffffc90002ee6fd8 R08: 0000000000000000 R09: 0000000000000000
[  189.413975][ T1550] R10: ffffc90002ee7008 R11: ffffffff9998d1e0 R12: 1ffff920005dcde2
[  189.414428][ T1550] R13: 00000000000005dc R14: ffffc90002ee7008 R15: ffff888005232f48
[  189.414865][ T1550] FS:  00007f698ab81800(0000) GS:ffff8880d1999000(0000) knlGS:0000000000000000
[  189.415380][ T1550] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  189.415755][ T1550] CR2: 00000000004e6888 CR3: 0000000012330002 CR4: 0000000000772ef0
[  189.416202][ T1550] PKRU: 55555554
[  189.416422][ T1550] Call Trace:
[  189.416640][ T1550]  <TASK>
[ 189.416793][ T1550] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 189.417095][ T1550] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 189.417400][ T1550] netif_set_mtu (net/core/dev.c:9652) 
[ 189.417691][ T1550] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 189.418003][ T1550] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 189.418249][ T1550] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 189.418549][ T1550] br_add_if (net/bridge/br_if.c:697) 
[ 189.418783][ T1550] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 189.419084][ T1550] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 189.419383][ T1550] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 189.419680][ T1550] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 189.420054][ T1550] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 189.420353][ T1550] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 189.420644][ T1550] ? __kernel_text_address (kernel/extable.c:79) 
[ 189.420938][ T1550] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 189.421240][ T1550] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 189.421533][ T1550] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 189.421900][ T1550] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 189.422229][ T1550] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 189.422523][ T1550] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 189.422816][ T1550] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 189.423120][ T1550] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 189.423412][ T1550] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 189.423702][ T1550] ? __create_object (mm/kmemleak.c:771) 
[ 189.423995][ T1550] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 189.424295][ T1550] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 189.424593][ T1550] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 189.424960][ T1550] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 189.425270][ T1550] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 189.425573][ T1550] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 189.425867][ T1550] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 189.426186][ T1550] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 189.426482][ T1550] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 189.426776][ T1550] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 189.427084][ T1550] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 189.427379][ T1550] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 189.427673][ T1550] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 189.427971][ T1550] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 189.428275][ T1550] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 189.428569][ T1550] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 189.428863][ T1550] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 189.429183][ T1550] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 189.429476][ T1550] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 189.429770][ T1550] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 189.430084][ T1550] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 189.430381][ T1550] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 189.430682][ T1550] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 189.430982][ T1550] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 189.431288][ T1550] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 189.431591][ T1550] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 189.431889][ T1550] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 189.432189][ T1550] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 189.432567][ T1550] ___sys_sendmsg (net/socket.c:2670) 
[ 189.432859][ T1550] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 189.433159][ T1550] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 189.433529][ T1550] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 189.433824][ T1550] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 189.434135][ T1550] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 189.434440][ T1550] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 189.434734][ T1550] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 189.435027][ T1550] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 189.435338][ T1550] __sys_sendmsg (net/socket.c:2700) 
[ 189.435633][ T1550] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 189.435998][ T1550] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 189.436311][ T1550] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 189.436605][ T1550] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 189.436902][ T1550] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  189.437272][ T1550] RIP: 0033:0x7f698ad4e1e7
[ 189.437577][ T1550] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  189.438644][ T1550] RSP: 002b:00007ffc4e5ab328 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  189.439100][ T1550] RAX: ffffffffffffffda RBX: 00007ffc4e5aba60 RCX: 00007f698ad4e1e7
[  189.439757][ T1550] RDX: 0000000000000000 RSI: 00007ffc4e5ab390 RDI: 0000000000000005
[  189.440205][ T1550] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  189.440860][ T1550] R10: 000000000c8c3910 R11: 0000000000000246 R12: 0000000000000005
[  189.441304][ T1550] R13: 00000000686e7e87 R14: 0000000000499600 R15: 0000000000000000
| [  189.795806][ T1553] ------------[ cut here ]------------
| [ 189.796163][ T1553] WARNING: CPU: 0 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) 
| [  189.796789][ T1553] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  189.798177][ T1553] Tainted: [W]=WARN
[  189.798425][ T1553] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 189.798823][ 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) 
[ 189.799157][ T1553] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  189.800292][ T1553] RSP: 0018:ffffc90002e37080 EFLAGS: 00010246
[  189.800703][ T1553] RAX: 0000000000000000 RBX: ffff888005232000 RCX: 0000000000000001
[  189.801194][ T1553] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[  189.801681][ T1553] RBP: ffffc90002e37168 R08: 0000000000000000 R09: 0000000000000000
[  189.802166][ T1553] R10: ffffc90002e37198 R11: ffffffff9a2ceab8 R12: 1ffff920005c6e14
[  189.802650][ T1553] R13: 00000000000005dc R14: ffffc90002e37198 R15: ffff888005232f48
[  189.803134][ T1553] FS:  00007f300f00c800(0000) GS:ffff8880d1999000(0000) knlGS:0000000000000000
[  189.803688][ T1553] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  189.804097][ T1553] CR2: 000000000043d940 CR3: 000000000e9cf004 CR4: 0000000000772ef0
[  189.804578][ T1553] PKRU: 55555554
[  189.804816][ T1553] Call Trace:
[  189.805055][ T1553]  <TASK>
[ 189.805235][ T1553] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 189.805562][ T1553] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 189.805881][ T1553] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 189.806287][ T1553] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 189.806612][ T1553] netif_set_mtu (net/core/dev.c:9652) 
[ 189.806929][ T1553] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 189.807267][ T1553] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 189.807673][ T1553] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 189.807916][ T1553] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 189.808246][ T1553] br_add_if (net/bridge/br_if.c:697) 
[ 189.808499][ T1553] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 189.808815][ T1553] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 189.809153][ T1553] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 189.809489][ T1553] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 189.809803][ T1553] ? __dev_get_by_name (net/core/dev.c:865) 
[ 189.810134][ T1553] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 189.810451][ T1553] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 189.810772][ T1553] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 189.811092][ T1553] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 189.811414][ T1553] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 189.811754][ T1553] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 189.812086][ T1553] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 189.812416][ T1553] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 189.812728][ T1553] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 189.813046][ T1553] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 189.813378][ T1553] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 189.813703][ T1553] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 189.814023][ T1553] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 189.814357][ T1553] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 189.814674][ T1553] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 189.814990][ T1553] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 189.815326][ T1553] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 189.815642][ 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) 
[ 189.815961][ T1553] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 189.816287][ T1553] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 189.816605][ T1553] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 189.816927][ T1553] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 189.817262][ T1553] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 189.817581][ T1553] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 189.817906][ T1553] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 189.818238][ T1553] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 189.818553][ T1553] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 189.818964][ T1553] ___sys_sendmsg (net/socket.c:2670) 
[ 189.819289][ T1553] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 189.819607][ T1553] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 189.819928][ T1553] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 189.820251][ T1553] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 189.820572][ T1553] ? __handle_mm_fault (mm/memory.c:6212) 
[ 189.820888][ T1553] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 189.821221][ T1553] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 189.821560][ T1553] __sys_sendmsg (net/socket.c:2700) 
[ 189.821884][ T1553] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 189.822210][ T1553] ? 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) 
[ 189.822531][ T1553] ? 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) 
[ 189.822848][ T1553] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 189.823175][ T1553] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 189.823499][ T1553] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  189.823890][ T1553] RIP: 0033:0x7f300f1d91e7
[ 189.824224][ 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)
[  189.825368][ T1553] RSP: 002b:00007ffd4ae7b6f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  189.825854][ T1553] RAX: ffffffffffffffda RBX: 00007ffd4ae7be30 RCX: 00007f300f1d91e7
[  189.826338][ T1553] RDX: 0000000000000000 RSI: 00007ffd4ae7b760 RDI: 0000000000000005
[  189.826811][ T1553] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  189.827294][ T1553] R10: 00007f300f267ac0 R11: 0000000000000246 R12: 00007ffd4ae7be68
[  189.827773][ T1553] R13: 00000000686e7e88 R14: 0000000000499600 R15: 00007ffd4ae7b850
| [  205.525911][   T69] ------------[ cut here ]------------
| [ 205.526268][ T69] WARNING: CPU: 2 PID: 69 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) 
| [  205.526804][   T69] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  205.527990][   T69] Tainted: [W]=WARN
[  205.528248][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  205.528631][   T69] Workqueue: netns cleanup_net
[ 205.528954][ T69] 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) 
[ 205.529278][ T69] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  205.530338][   T69] RSP: 0018:ffffc900004a75b0 EFLAGS: 00010246
[  205.530726][   T69] RAX: 0000000000000000 RBX: ffff88800da12000 RCX: 0000000000000001
[  205.531182][   T69] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[  205.531624][   T69] RBP: ffffc900004a7698 R08: 0000000000000000 R09: 0000000000000000
[  205.532086][   T69] R10: ffffc900004a76c8 R11: ffffffff9998d1e0 R12: 1ffff92000094eba
[  205.532544][   T69] R13: 00000000000005dc R14: ffffc900004a76c8 R15: ffff88800da12f48
[  205.532990][   T69] FS:  0000000000000000(0000) GS:ffff8880d1a99000(0000) knlGS:0000000000000000
[  205.533528][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  205.533930][   T69] CR2: 00007ff121317000 CR3: 000000004434a003 CR4: 0000000000772ef0
[  205.534394][   T69] PKRU: 55555554
[  205.534635][   T69] Call Trace:
[  205.534864][   T69]  <TASK>
[ 205.535045][ T69] ? __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) 
[ 205.535439][ T69] ? br_del_if (net/bridge/br_if.c:742) 
[ 205.535678][ T69] ? br_device_event (net/bridge/br.c:141) 
[ 205.535994][ T69] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 205.536324][ T69] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 205.536644][ T69] ? cleanup_net (net/core/net_namespace.c:684) 
[ 205.536945][ T69] ? process_one_work (kernel/workqueue.c:3238) 
[ 205.537278][ T69] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 205.537583][ T69] ? kthread (kernel/kthread.c:464) 
[ 205.537825][ T69] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 205.538145][ T69] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 205.538455][ T69] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 205.538781][ T69] netif_set_mtu (net/core/dev.c:9652) 
[ 205.539102][ T69] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 205.539447][ T69] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 205.539693][ T69] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 205.540009][ T69] br_del_if (net/bridge/br_if.c:743) 
[ 205.540279][ T69] br_device_event (net/bridge/br.c:141) 
[ 205.540607][ T69] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 205.540939][ T69] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 205.541284][ T69] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 205.541696][ T69] ? 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) 
[ 205.542016][ T69] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 205.542425][ T69] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 205.542811][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 205.543214][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 205.543605][ T69] default_device_exit_batch (net/core/dev.c:12673) 
[ 205.543911][ T69] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 205.544310][ T69] ops_undo_list (net/core/net_namespace.c:250) 
[ 205.544640][ T69] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 205.545177][ T69] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 205.545497][ T69] cleanup_net (net/core/net_namespace.c:684) 
[ 205.545809][ T69] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 205.546143][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 205.546464][ T69] process_one_work (kernel/workqueue.c:3238) 
[ 205.546782][ T69] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 205.547108][ T69] ? assign_work (kernel/workqueue.c:1200) 
[ 205.547422][ T69] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 205.547737][ T69] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 205.548039][ T69] kthread (kernel/kthread.c:464) 
[ 205.548294][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 205.549016][ T69] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 205.549758][ T69] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 205.550086][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 205.550406][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 205.550715][ T69] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 205.551018][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 205.551343][ T69] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  205.971498][   T69] ------------[ cut here ]------------
| [ 205.971808][ T69] WARNING: CPU: 0 PID: 69 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) 
| [  205.972328][   T69] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  205.973452][   T69] Tainted: [W]=WARN
[  205.973675][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  205.974045][   T69] Workqueue: netns cleanup_net
[ 205.974368][ T69] 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) 
[ 205.974665][ T69] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  205.975711][   T69] RSP: 0018:ffffc900004a75b0 EFLAGS: 00010246
[  205.976088][   T69] RAX: 0000000000000000 RBX: ffff888005232000 RCX: 0000000000000001
[  205.976527][   T69] RDX: 0000000000000000 RSI: ffffffff98f10751 RDI: ffffffff98658280
[  205.976956][   T69] RBP: ffffc900004a7698 R08: 0000000000000000 R09: 0000000000000000
[  205.977397][   T69] R10: ffffc900004a76c8 R11: ffffffff9998d1e0 R12: 1ffff92000094eba
[  205.977828][   T69] R13: 00000000000005dc R14: ffffc900004a76c8 R15: ffff888005232f48
[  205.978275][   T69] FS:  0000000000000000(0000) GS:ffff8880d1999000(0000) knlGS:0000000000000000
[  205.978783][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  205.979158][   T69] CR2: 00005593505d43ec CR3: 000000004434a003 CR4: 0000000000772ef0
[  205.979591][   T69] PKRU: 55555554
[  205.979809][   T69] Call Trace:
[  205.980023][   T69]  <TASK>
[ 205.980184][ T69] ? __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) 
[ 205.980552][ T69] ? br_del_if (net/bridge/br_if.c:742) 
[ 205.980772][ T69] ? br_device_event (net/bridge/br.c:141) 
[ 205.981059][ T69] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 205.981363][ T69] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 205.981649][ T69] ? cleanup_net (net/core/net_namespace.c:684) 
[ 205.981944][ T69] ? process_one_work (kernel/workqueue.c:3238) 
[ 205.982246][ T69] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 205.982532][ T69] ? kthread (kernel/kthread.c:464) 
[ 205.982748][ T69] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 205.983036][ T69] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 205.983335][ T69] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 205.983638][ T69] netif_set_mtu (net/core/dev.c:9652) 
[ 205.983925][ T69] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 205.984239][ T69] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 205.984465][ T69] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 205.984756][ T69] br_del_if (net/bridge/br_if.c:743) 
[ 205.984975][ T69] br_device_event (net/bridge/br.c:141) 
[ 205.985274][ T69] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 205.985577][ T69] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 205.985869][ T69] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 205.986245][ T69] ? 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) 
[ 205.986542][ T69] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 205.986895][ T69] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 205.987258][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 205.987617][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 205.987982][ T69] default_device_exit_batch (net/core/dev.c:12673) 
[ 205.988279][ T69] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 205.988650][ T69] ops_undo_list (net/core/net_namespace.c:250) 
[ 205.988940][ T69] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 205.989234][ T69] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 205.989530][ T69] cleanup_net (net/core/net_namespace.c:684) 
[ 205.989820][ T69] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 205.990117][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 205.990415][ T69] process_one_work (kernel/workqueue.c:3238) 
[ 205.990711][ T69] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 205.991008][ T69] ? assign_work (kernel/workqueue.c:1200) 
[ 205.991308][ T69] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 205.991604][ T69] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 205.991902][ T69] kthread (kernel/kthread.c:464) 
[ 205.992129][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 205.992416][ T69] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 205.992703][ T69] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 205.992995][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 205.993294][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 205.993583][ T69] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 205.993870][ T69] ? __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