======================================
| [   24.938753][  T332] swp1: entered promiscuous mode
| [   24.944899][  T332] ------------[ cut here ]------------
| [ 24.945273][ T332] WARNING: CPU: 2 PID: 332 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   24.945887][  T332] Modules linked in:
[   24.946767][  T332] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 24.947159][ T332] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 24.947513][ T332] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   24.948814][  T332] RSP: 0018:ffffc90000f66ef0 EFLAGS: 00010246
[   24.949230][  T332] RAX: 0000000000000000 RBX: ffff88800c5d2000 RCX: 0000000000000001
[   24.949720][  T332] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[   24.950188][  T332] RBP: ffffc90000f66fd8 R08: 0000000000000000 R09: 0000000000000000
[   24.950668][  T332] R10: ffffc90000f67008 R11: ffffffffb8d8d1e0 R12: 1ffff920001ecde2
[   24.951140][  T332] R13: 00000000000005dc R14: ffffc90000f67008 R15: ffff88800c5d2f48
[   24.951624][  T332] FS:  00007fe7a0b28800(0000) GS:ffff8880b2699000(0000) knlGS:0000000000000000
[   24.952163][  T332] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.952565][  T332] CR2: 00000000004e6888 CR3: 000000000cf5d005 CR4: 0000000000772ef0
[   24.953033][  T332] PKRU: 55555554
[   24.953284][  T332] Call Trace:
[   24.953524][  T332]  <TASK>
[ 24.953697][ T332] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 24.954014][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.954356][ T332] netif_set_mtu (net/core/dev.c:9652) 
[ 24.954672][ T332] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 24.955002][ T332] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 24.955262][ T332] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 24.955580][ T332] br_add_if (net/bridge/br_if.c:697) 
[ 24.955831][ T332] do_set_master (net/core/rtnetlink.c:2948) 
[ 24.956146][ T332] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 24.956475][ T332] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 24.956802][ T332] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 24.957190][ T332] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 24.957513][ T332] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 24.957821][ T332] ? __kernel_text_address (kernel/extable.c:79) 
[ 24.958136][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.958463][ T332] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 24.958780][ T332] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 24.959190][ T332] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.959521][ T332] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.959828][ T332] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 24.960139][ T332] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 24.960461][ T332] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.960774][ T332] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 24.961080][ T332] ? __create_object (mm/kmemleak.c:771) 
[ 24.961405][ T332] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 24.961718][ T332] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 24.962035][ T332] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 24.962427][ T332] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 24.962744][ T332] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 24.963059][ T332] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.963393][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.963724][ T332] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.964055][ T332] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 24.964396][ T332] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.964722][ T332] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.965048][ T332] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 24.965383][ T332] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.965712][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.966043][ T332] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 24.966389][ T332] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.966720][ T332] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 24.967058][ T332] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 24.967391][ T332] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 24.967720][ T332] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 24.968046][ T332] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 24.968383][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.968717][ T332] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 24.969053][ T332] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 24.969405][ T332] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 24.969742][ T332] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 24.970070][ T332] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 24.970411][ T332] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 24.970824][ T332] ___sys_sendmsg (net/socket.c:2670) 
[ 24.971147][ T332] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 24.971490][ T332] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 24.971895][ T332] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 24.972222][ T332] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.972567][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.972897][ T332] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.973222][ T332] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 24.973559][ T332] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.973900][ T332] __sys_sendmsg (net/socket.c:2700) 
[ 24.974225][ T332] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 24.974636][ T332] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 24.974960][ T332] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.975291][ T332] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 24.975616][ T332] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   24.976006][  T332] RIP: 0033:0x7fe7a0cf51e7
[ 24.976367][ T332] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   24.977465][  T332] RSP: 002b:00007ffc953835c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   24.977938][  T332] RAX: ffffffffffffffda RBX: 00007ffc95383d00 RCX: 00007fe7a0cf51e7
[   24.978439][  T332] RDX: 0000000000000000 RSI: 00007ffc95383630 RDI: 0000000000000005
[   24.978898][  T332] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   24.979400][  T332] R10: 0000000001e3b910 R11: 0000000000000246 R12: 0000000000000005
[   24.979859][  T332] R13: 00000000686e1d24 R14: 0000000000499600 R15: 0000000000000000
| [   25.564071][  T335] ------------[ cut here ]------------
| [ 25.564391][ T335] WARNING: CPU: 3 PID: 335 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   25.565001][  T335] Modules linked in: vxlan
| [   25.566214][  T335] Tainted: [W]=WARN
[   25.566475][  T335] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 25.566869][ T335] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 25.567197][ T335] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   25.568523][  T335] RSP: 0018:ffffc90000f97080 EFLAGS: 00010246
[   25.568932][  T335] RAX: 0000000000000000 RBX: ffff88800c5d2000 RCX: 0000000000000001
[   25.569455][  T335] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[   25.569921][  T335] RBP: ffffc90000f97168 R08: 0000000000000000 R09: 0000000000000000
[   25.570399][  T335] R10: ffffc90000f97198 R11: ffffffffb96ceab8 R12: 1ffff920001f2e14
[   25.570870][  T335] R13: 00000000000005dc R14: ffffc90000f97198 R15: ffff88800c5d2f48
[   25.571346][  T335] FS:  00007fa5f768b800(0000) GS:ffff8880b2719000(0000) knlGS:0000000000000000
[   25.571899][  T335] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.572303][  T335] CR2: 000000000043d940 CR3: 0000000004e93006 CR4: 0000000000772ef0
[   25.572784][  T335] PKRU: 55555554
[   25.573024][  T335] Call Trace:
[   25.573286][  T335]  <TASK>
[ 25.573457][ T335] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 25.573779][ T335] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 25.574097][ T335] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 25.574507][ T335] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 25.574824][ T335] netif_set_mtu (net/core/dev.c:9652) 
[ 25.575137][ T335] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 25.575469][ T335] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 25.575866][ T335] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 25.576106][ T335] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 25.576437][ T335] br_add_if (net/bridge/br_if.c:697) 
[ 25.576691][ T335] do_set_master (net/core/rtnetlink.c:2948) 
[ 25.577007][ T335] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 25.577338][ T335] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 25.577664][ T335] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 25.577977][ T335] ? __dev_get_by_name (net/core/dev.c:865) 
[ 25.578300][ T335] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 25.578612][ T335] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 25.578938][ T335] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 25.579274][ T335] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 25.579594][ T335] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 25.579918][ T335] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 25.580235][ T335] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 25.580568][ T335] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 25.580878][ T335] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 25.581192][ T335] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 25.581523][ T335] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 25.581846][ T335] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 25.582164][ T335] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.582492][ T335] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 25.582808][ T335] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 25.583126][ T335] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 25.583456][ T335] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 25.583766][ T335] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 25.584069][ T335] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 25.584387][ T335] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 25.584691][ T335] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.584998][ T335] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 25.585315][ T335] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 25.585632][ T335] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 25.585951][ T335] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 25.586271][ T335] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 25.586576][ T335] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 25.586966][ T335] ___sys_sendmsg (net/socket.c:2670) 
[ 25.587283][ T335] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 25.587593][ T335] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 25.587906][ T335] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 25.588241][ T335] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 25.588561][ T335] ? __handle_mm_fault (mm/memory.c:6212) 
[ 25.588863][ T335] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 25.589176][ T335] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 25.589522][ T335] __sys_sendmsg (net/socket.c:2700) 
[ 25.589830][ T335] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 25.590149][ T335] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 25.590468][ T335] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 25.590772][ T335] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 25.591078][ T335] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 25.591392][ T335] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   25.591767][  T335] RIP: 0033:0x7fa5f78581e7
[ 25.592097][ T335] Code: Unable to access opcode bytes at 0x7fa5f78581bd.

Code starting with the faulting instruction
===========================================
[   25.592510][  T335] RSP: 002b:00007ffc07bf6628 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   25.592968][  T335] RAX: ffffffffffffffda RBX: 00007ffc07bf6d60 RCX: 00007fa5f78581e7
[   25.593431][  T335] RDX: 0000000000000000 RSI: 00007ffc07bf6690 RDI: 0000000000000005
[   25.593883][  T335] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   25.594360][  T335] R10: 00007fa5f78e6ac0 R11: 0000000000000246 R12: 00007ffc07bf6d98
[   25.594811][  T335] R13: 00000000686e1d24 R14: 0000000000499600 R15: 00007ffc07bf6780
| [   27.665276][  T354] ------------[ cut here ]------------
| [ 27.665659][ 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) 
| [   27.666301][  T354] Modules linked in: vxlan
| [   27.667278][  T354] Tainted: [W]=WARN
[   27.667525][  T354] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 27.667921][ 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) 
[ 27.668253][ T354] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   27.669368][  T354] RSP: 0018:ffffc900005d6ef0 EFLAGS: 00010246
[   27.669774][  T354] RAX: 0000000000000000 RBX: ffff88800ee82000 RCX: 0000000000000001
[   27.670259][  T354] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[   27.670726][  T354] RBP: ffffc900005d6fd8 R08: 0000000000000000 R09: 0000000000000000
[   27.671196][  T354] R10: ffffc900005d7008 R11: ffffffffb8d8d1e0 R12: 1ffff920000bade2
[   27.671670][  T354] R13: 00000000000005dc R14: ffffc900005d7008 R15: ffff88800ee82f48
[   27.672134][  T354] FS:  00007f367ff6d800(0000) GS:ffff8880b2699000(0000) knlGS:0000000000000000
[   27.672678][  T354] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.673063][  T354] CR2: 00000000004e6888 CR3: 0000000010bad001 CR4: 0000000000772ef0
[   27.673555][  T354] PKRU: 55555554
[   27.673801][  T354] Call Trace:
[   27.674038][  T354]  <TASK>
[ 27.674215][ T354] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 27.674538][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.674862][ T354] netif_set_mtu (net/core/dev.c:9652) 
[ 27.675175][ T354] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 27.675509][ T354] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 27.675751][ T354] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 27.676062][ T354] br_add_if (net/bridge/br_if.c:697) 
[ 27.676324][ T354] do_set_master (net/core/rtnetlink.c:2948) 
[ 27.676644][ T354] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 27.676958][ T354] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 27.677287][ T354] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 27.677675][ T354] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 27.677994][ T354] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 27.678322][ T354] ? __kernel_text_address (kernel/extable.c:79) 
[ 27.678656][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.678966][ 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) 
[ 27.679297][ T354] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 27.679677][ T354] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 27.679988][ T354] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 27.680320][ T354] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 27.680629][ T354] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 27.680941][ T354] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 27.681263][ T354] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 27.681567][ T354] ? __create_object (mm/kmemleak.c:771) 
[ 27.681879][ T354] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 27.682188][ T354] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 27.682509][ T354] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 27.682890][ T354] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 27.683211][ T354] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 27.683532][ T354] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 27.683839][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.684155][ T354] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 27.684475][ T354] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 27.684782][ T354] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 27.685092][ T354] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 27.685412][ T354] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 27.685730][ T354] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 27.686044][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.686369][ T354] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 27.686680][ T354] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 27.686988][ T354] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 27.687315][ T354] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 27.687620][ 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) 
[ 27.687931][ T354] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 27.688239][ T354] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 27.688555][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.688866][ T354] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 27.689185][ T354] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 27.689503][ T354] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 27.689823][ T354] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 27.690137][ T354] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 27.690458][ T354] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 27.690849][ T354] ___sys_sendmsg (net/socket.c:2670) 
[ 27.691154][ T354] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 27.691467][ 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) 
[ 27.691848][ T354] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 27.692156][ T354] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 27.692478][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.692790][ T354] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 27.693329][ 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) 
[ 27.693636][ T354] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 27.693952][ T354] __sys_sendmsg (net/socket.c:2700) 
[ 27.694263][ T354] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 27.694853][ T354] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 27.695171][ T354] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 27.695493][ T354] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 27.695801][ T354] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   27.696399][  T354] RIP: 0033:0x7f368013a1e7
[ 27.696715][ 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)
[   27.697791][  T354] RSP: 002b:00007ffe077935d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   27.698257][  T354] RAX: ffffffffffffffda RBX: 00007ffe07793d10 RCX: 00007f368013a1e7
[   27.698928][  T354] RDX: 0000000000000000 RSI: 00007ffe07793640 RDI: 0000000000000005
[   27.699398][  T354] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   27.699859][  T354] R10: 0000000038a03910 R11: 0000000000000246 R12: 0000000000000005
[   27.700544][  T354] R13: 00000000686e1d27 R14: 0000000000499600 R15: 0000000000000000
| [   28.066033][  T357] ------------[ cut here ]------------
| [ 28.066675][ T357] WARNING: CPU: 1 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) 
| [   28.067288][  T357] Modules linked in: vxlan
| [   28.068219][  T357] Tainted: [W]=WARN
[   28.068459][  T357] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 28.068845][ 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) 
[ 28.069174][ T357] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   28.070292][  T357] RSP: 0018:ffffc90000607080 EFLAGS: 00010246
[   28.070679][  T357] RAX: 0000000000000000 RBX: ffff88800ee82000 RCX: 0000000000000001
[   28.071136][  T357] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[   28.071602][  T357] RBP: ffffc90000607168 R08: 0000000000000000 R09: 0000000000000000
[   28.072061][  T357] R10: ffffc90000607198 R11: ffffffffb8d8d1e0 R12: 1ffff920000c0e14
[   28.072526][  T357] R13: 00000000000005dc R14: ffffc90000607198 R15: ffff88800ee82f48
[   28.072988][  T357] FS:  00007f2845f1c800(0000) GS:ffff8880b2619000(0000) knlGS:0000000000000000
[   28.073526][  T357] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.073912][  T357] CR2: 000000000043d940 CR3: 000000001110b004 CR4: 0000000000772ef0
[   28.074392][  T357] PKRU: 55555554
[   28.074621][  T357] Call Trace:
[   28.074850][  T357]  <TASK>
[ 28.075009][ T357] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 28.075322][ T357] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 28.075642][ T357] netif_set_mtu (net/core/dev.c:9652) 
[ 28.075945][ T357] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 28.076271][ T357] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 28.076503][ T357] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 28.076810][ T357] br_add_if (net/bridge/br_if.c:697) 
[ 28.077053][ T357] do_set_master (net/core/rtnetlink.c:2948) 
[ 28.077363][ T357] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 28.077668][ T357] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 28.077977][ T357] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 28.078294][ T357] ? __dev_get_by_name (net/core/dev.c:865) 
[ 28.078597][ T357] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 28.078898][ T357] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 28.079219][ T357] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 28.079534][ T357] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 28.079843][ T357] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 28.080155][ T357] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 28.080475][ T357] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 28.080787][ T357] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 28.081090][ T357] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 28.081406][ T357] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 28.081714][ T357] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 28.082020][ T357] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 28.082347][ T357] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 28.082660][ T357] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 28.082966][ T357] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 28.083280][ T357] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 28.083593][ T357] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 28.083895][ 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) 
[ 28.084201][ T357] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 28.084521][ T357] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 28.084824][ T357] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 28.085130][ T357] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 28.085458][ T357] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 28.085765][ T357] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 28.086075][ T357] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 28.086404][ T357] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 28.086713][ T357] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 28.087098][ T357] ___sys_sendmsg (net/socket.c:2670) 
[ 28.087424][ T357] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 28.087726][ T357] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 28.088031][ T357] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 28.088344][ T357] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 28.088650][ T357] ? __handle_mm_fault (mm/memory.c:6212) 
[ 28.088951][ T357] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 28.089265][ T357] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 28.089591][ T357] __sys_sendmsg (net/socket.c:2700) 
[ 28.089892][ T357] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 28.090194][ 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) 
[ 28.090533][ 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) 
[ 28.090845][ T357] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 28.091155][ T357] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 28.091470][ T357] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   28.091845][  T357] RIP: 0033:0x7f28460e91e7
[ 28.092160][ 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)
[   28.093256][  T357] RSP: 002b:00007ffe12dcf4d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   28.093711][  T357] RAX: ffffffffffffffda RBX: 00007ffe12dcfc10 RCX: 00007f28460e91e7
[   28.094166][  T357] RDX: 0000000000000000 RSI: 00007ffe12dcf540 RDI: 0000000000000005
[   28.094639][  T357] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   28.095094][  T357] R10: 00007f2846177ac0 R11: 0000000000000246 R12: 00007ffe12dcfc48
[   28.095559][  T357] R13: 00000000686e1d27 R14: 0000000000499600 R15: 00007ffe12dcf630
| [   48.623481][   T69] ------------[ cut here ]------------
| [ 48.623853][ 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) 
| [   48.624418][   T69] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   48.625730][   T69] Tainted: [W]=WARN
[   48.625983][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.626392][   T69] Workqueue: netns cleanup_net
[ 48.626741][ 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) 
[ 48.627073][ T69] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   48.628212][   T69] RSP: 0018:ffffc900004a75b0 EFLAGS: 00010246
[   48.628636][   T69] RAX: 0000000000000000 RBX: ffff88800c5d2000 RCX: 0000000000000001
[   48.629441][   T69] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[   48.629923][   T69] RBP: ffffc900004a7698 R08: 0000000000000000 R09: 0000000000000000
[   48.630408][   T69] R10: ffffc900004a76c8 R11: ffffffffb4c9be78 R12: 1ffff92000094eba
[   48.630886][   T69] R13: 00000000000005dc R14: ffffc900004a76c8 R15: ffff88800c5d2f48
[   48.631362][   T69] FS:  0000000000000000(0000) GS:ffff8880b2699000(0000) knlGS:0000000000000000
[   48.631921][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.632331][   T69] CR2: 00007ffdec155f78 CR3: 000000001031d006 CR4: 0000000000772ef0
[   48.632805][   T69] PKRU: 55555554
[   48.633052][   T69] Call Trace:
[   48.633308][   T69]  <TASK>
[ 48.633480][ 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) 
[ 48.633883][ T69] ? br_del_if (net/bridge/br_if.c:742) 
[ 48.634163][ T69] ? br_device_event (net/bridge/br.c:141) 
[ 48.634493][ T69] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 48.634818][ T69] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 48.635140][ T69] ? cleanup_net (net/core/net_namespace.c:684) 
[ 48.635469][ T69] ? process_one_work (kernel/workqueue.c:3238) 
[ 48.635787][ T69] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 48.636107][ T69] ? kthread (kernel/kthread.c:464) 
[ 48.636364][ T69] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 48.636687][ T69] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 48.637008][ T69] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 48.637351][ T69] netif_set_mtu (net/core/dev.c:9652) 
[ 48.637667][ T69] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 48.638017][ T69] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 48.638275][ T69] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 48.638598][ T69] br_del_if (net/bridge/br_if.c:743) 
[ 48.638848][ T69] br_device_event (net/bridge/br.c:141) 
[ 48.639168][ T69] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 48.639521][ T69] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 48.639849][ T69] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 48.640259][ 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) 
[ 48.640583][ T69] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 48.640980][ T69] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 48.641387][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 48.641790][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 48.642194][ T69] default_device_exit_batch (net/core/dev.c:12673) 
[ 48.642523][ T69] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 48.642924][ T69] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 48.643262][ T69] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 48.643585][ T69] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 48.643922][ T69] cleanup_net (net/core/net_namespace.c:684) 
[ 48.644256][ T69] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 48.644589][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 48.644918][ T69] process_one_work (kernel/workqueue.c:3238) 
[ 48.645257][ T69] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 48.645587][ T69] ? assign_work (kernel/workqueue.c:1200) 
[ 48.645912][ T69] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 48.646252][ T69] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 48.646585][ T69] kthread (kernel/kthread.c:464) 
[ 48.646837][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 48.647157][ T69] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 48.647489][ T69] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 48.647812][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 48.648137][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 48.648483][ T69] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 48.648810][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 48.649129][ T69] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   49.111748][   T69] ------------[ cut here ]------------
| [ 49.112058][ 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) 
| [   49.113036][   T69] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   49.114167][   T69] Tainted: [W]=WARN
[   49.114402][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   49.114765][   T69] Workqueue: netns cleanup_net
[ 49.115071][ 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) 
[ 49.115385][ T69] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   49.116439][   T69] RSP: 0018:ffffc900004a75b0 EFLAGS: 00010246
[   49.116809][   T69] RAX: 0000000000000000 RBX: ffff88800ee82000 RCX: 0000000000000001
[   49.117257][   T69] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[   49.117694][   T69] RBP: ffffc900004a7698 R08: 0000000000000000 R09: 0000000000000000
[   49.118125][   T69] R10: ffffc900004a76c8 R11: ffffffffb8d8d1e0 R12: 1ffff92000094eba
[   49.118575][   T69] R13: 00000000000005dc R14: ffffc900004a76c8 R15: ffff88800ee82f48
[   49.119005][   T69] FS:  0000000000000000(0000) GS:ffff8880b2719000(0000) knlGS:0000000000000000
[   49.119545][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   49.119911][   T69] CR2: 00007fca4c3f3000 CR3: 000000001d34a001 CR4: 0000000000772ef0
[   49.120367][   T69] PKRU: 55555554
[   49.120590][   T69] Call Trace:
[   49.120810][   T69]  <TASK>
[ 49.120958][ 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) 
[ 49.121332][ T69] ? br_del_if (net/bridge/br_if.c:742) 
[ 49.121552][ T69] ? br_device_event (net/bridge/br.c:141) 
[ 49.121841][ T69] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 49.122133][ T69] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 49.122437][ T69] ? cleanup_net (net/core/net_namespace.c:684) 
[ 49.122736][ T69] ? process_one_work (kernel/workqueue.c:3238) 
[ 49.123023][ T69] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 49.123325][ T69] ? kthread (kernel/kthread.c:464) 
[ 49.123544][ T69] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 49.123833][ T69] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 49.124128][ T69] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.124439][ T69] netif_set_mtu (net/core/dev.c:9652) 
[ 49.124728][ T69] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 49.125039][ T69] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 49.125268][ T69] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 49.125568][ T69] br_del_if (net/bridge/br_if.c:743) 
[ 49.125787][ T69] br_device_event (net/bridge/br.c:141) 
[ 49.126075][ T69] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 49.126391][ T69] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 49.126686][ T69] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 49.127054][ 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) 
[ 49.127358][ T69] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 49.127720][ T69] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 49.128074][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 49.128446][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 49.128815][ T69] default_device_exit_batch (net/core/dev.c:12673) 
[ 49.129107][ T69] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 49.129503][ T69] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 49.129799][ T69] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 49.130087][ T69] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 49.130395][ T69] cleanup_net (net/core/net_namespace.c:684) 
[ 49.130688][ T69] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 49.130980][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.131282][ T69] process_one_work (kernel/workqueue.c:3238) 
[ 49.131585][ T69] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 49.131891][ T69] ? assign_work (kernel/workqueue.c:1200) 
[ 49.132188][ T69] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 49.132501][ T69] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 49.132797][ T69] kthread (kernel/kthread.c:464) 
[ 49.133020][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 49.133313][ T69] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 49.133604][ T69] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 49.133896][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.134191][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 49.134490][ T69] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 49.134782][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 49.135068][ T69] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   60.648939][  T608] ------------[ cut here ]------------
| [ 60.649331][ T608] WARNING: CPU: 2 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) 
| [   60.649952][  T608] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   60.651489][  T608] Tainted: [W]=WARN
[   60.651733][  T608] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 60.652121][ 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) 
[ 60.652457][ T608] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   60.653549][  T608] RSP: 0018:ffffc90000f26ef0 EFLAGS: 00010246
[   60.653952][  T608] RAX: 0000000000000000 RBX: ffff88800e92a000 RCX: 0000000000000001
[   60.654424][  T608] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[   60.654905][  T608] RBP: ffffc90000f26fd8 R08: 0000000000000000 R09: 0000000000000000
[   60.655411][  T608] R10: ffffc90000f27008 R11: ffffffffb8d8d1e0 R12: 1ffff920001e4de2
[   60.655898][  T608] R13: 00000000000005dc R14: ffffc90000f27008 R15: ffff88800e92af48
[   60.656384][  T608] FS:  00007f43098b9800(0000) GS:ffff8880b2699000(0000) knlGS:0000000000000000
[   60.656943][  T608] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   60.657378][  T608] CR2: 00000000004e6888 CR3: 0000000010b64006 CR4: 0000000000772ef0
[   60.657868][  T608] PKRU: 55555554
[   60.658118][  T608] Call Trace:
[   60.658377][  T608]  <TASK>
[ 60.658558][ T608] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 60.658887][ T608] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 60.659241][ T608] netif_set_mtu (net/core/dev.c:9652) 
[ 60.659584][ T608] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 60.659932][ T608] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 60.660185][ T608] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 60.660526][ T608] br_add_if (net/bridge/br_if.c:697) 
[ 60.660790][ T608] do_set_master (net/core/rtnetlink.c:2948) 
[ 60.661112][ T608] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 60.661466][ T608] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 60.661804][ T608] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 60.662221][ T608] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 60.662560][ T608] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 60.662889][ T608] ? __kernel_text_address (kernel/extable.c:79) 
[ 60.663217][ T608] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 60.663555][ 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) 
[ 60.663884][ T608] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 60.664300][ T608] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 60.664633][ T608] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 60.664959][ T608] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 60.665304][ T608] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 60.665636][ T608] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 60.665955][ T608] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 60.666292][ T608] ? __create_object (mm/kmemleak.c:771) 
[ 60.666619][ T608] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 60.666948][ T608] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 60.667292][ T608] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 60.667695][ T608] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 60.668027][ T608] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 60.668369][ T608] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 60.668697][ T608] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 60.669030][ T608] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 60.669395][ T608] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 60.669724][ T608] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 60.670055][ T608] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 60.670394][ T608] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 60.670723][ T608] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 60.671053][ T608] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 60.671393][ T608] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 60.671721][ T608] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 60.672044][ T608] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 60.672395][ T608] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 60.672719][ 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) 
[ 60.673047][ T608] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 60.673402][ T608] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 60.673731][ T608] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 60.674066][ T608] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 60.674404][ T608] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 60.674739][ T608] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 60.675077][ T608] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 60.675418][ T608] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 60.675746][ T608] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 60.676163][ T608] ___sys_sendmsg (net/socket.c:2670) 
[ 60.676503][ T608] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 60.676832][ 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) 
[ 60.677268][ T608] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 60.677605][ T608] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 60.677939][ T608] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 60.678283][ T608] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 60.678617][ 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) 
[ 60.678944][ T608] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 60.679307][ T608] __sys_sendmsg (net/socket.c:2700) 
[ 60.679634][ T608] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 60.680045][ T608] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 60.680393][ T608] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 60.680726][ T608] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 60.681057][ T608] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   60.681486][  T608] RIP: 0033:0x7f4309a861e7
[ 60.681824][ 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)
[   60.682947][  T608] RSP: 002b:00007fff2ab46dc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   60.683421][  T608] RAX: ffffffffffffffda RBX: 00007fff2ab47500 RCX: 00007f4309a861e7
[   60.683882][  T608] RDX: 0000000000000000 RSI: 00007fff2ab46e30 RDI: 0000000000000005
[   60.684357][  T608] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   60.684815][  T608] R10: 0000000029ff5910 R11: 0000000000000246 R12: 0000000000000005
[   60.685297][  T608] R13: 00000000686e1d48 R14: 0000000000499600 R15: 0000000000000000
| [   61.065213][  T611] ------------[ cut here ]------------
| [ 61.065579][ T611] WARNING: CPU: 3 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) 
| [   61.066210][  T611] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   61.067342][  T611] Tainted: [W]=WARN
[   61.067575][  T611] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 61.067964][ 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) 
[ 61.068287][ T611] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   61.069403][  T611] RSP: 0018:ffffc90000f57080 EFLAGS: 00010246
[   61.069794][  T611] RAX: 0000000000000000 RBX: ffff88800e92a000 RCX: 0000000000000001
[   61.070267][  T611] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[   61.070730][  T611] RBP: ffffc90000f57168 R08: 0000000000000000 R09: 0000000000000000
[   61.071189][  T611] R10: ffffc90000f57198 R11: ffffffffb8d8d1e0 R12: 1ffff920001eae14
[   61.071656][  T611] R13: 00000000000005dc R14: ffffc90000f57198 R15: ffff88800e92af48
[   61.072116][  T611] FS:  00007f1604926800(0000) GS:ffff8880b2719000(0000) knlGS:0000000000000000
[   61.072657][  T611] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   61.073042][  T611] CR2: 000000000043d940 CR3: 0000000011107006 CR4: 0000000000772ef0
[   61.073517][  T611] PKRU: 55555554
[   61.073750][  T611] Call Trace:
[   61.073978][  T611]  <TASK>
[ 61.074138][ T611] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 61.074452][ T611] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 61.074769][ T611] netif_set_mtu (net/core/dev.c:9652) 
[ 61.075073][ T611] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 61.075401][ T611] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 61.075632][ T611] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 61.075943][ T611] br_add_if (net/bridge/br_if.c:697) 
[ 61.076190][ T611] do_set_master (net/core/rtnetlink.c:2948) 
[ 61.076508][ T611] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 61.076817][ T611] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 61.077126][ T611] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 61.077435][ T611] ? __dev_get_by_name (net/core/dev.c:865) 
[ 61.077744][ T611] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 61.078049][ T611] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 61.078378][ T611] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 61.078682][ T611] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 61.078990][ T611] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 61.079323][ T611] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 61.079635][ T611] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 61.079952][ T611] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 61.080263][ T611] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 61.080572][ T611] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 61.080924][ T611] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 61.081267][ T611] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 61.081593][ T611] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 61.081918][ T611] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 61.082242][ T611] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 61.082575][ T611] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 61.082903][ T611] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 61.083231][ 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) 
[ 61.083563][ T611] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 61.083884][ T611] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 61.084209][ T611] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 61.084593][ T611] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 61.084916][ T611] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 61.085237][ T611] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 61.085590][ T611] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 61.085913][ T611] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 61.086230][ T611] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 61.086653][ T611] ___sys_sendmsg (net/socket.c:2670) 
[ 61.086975][ T611] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 61.087305][ T611] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 61.087628][ T611] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 61.087952][ T611] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 61.088290][ T611] ? __handle_mm_fault (mm/memory.c:6212) 
[ 61.088612][ T611] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 61.088932][ T611] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 61.089290][ T611] __sys_sendmsg (net/socket.c:2700) 
[ 61.089608][ T611] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 61.089932][ 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) 
[ 61.090267][ 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) 
[ 61.090587][ T611] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 61.090915][ T611] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 61.091234][ T611] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   61.091638][  T611] RIP: 0033:0x7f1604af31e7
[ 61.091968][ 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)
[   61.093130][  T611] RSP: 002b:00007ffc5a0ecf78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   61.093620][  T611] RAX: ffffffffffffffda RBX: 00007ffc5a0ed6b0 RCX: 00007f1604af31e7
[   61.094113][  T611] RDX: 0000000000000000 RSI: 00007ffc5a0ecfe0 RDI: 0000000000000005
[   61.094594][  T611] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   61.095048][  T611] R10: 00007f1604b81ac0 R11: 0000000000000246 R12: 00007ffc5a0ed6e8
[   61.095508][  T611] R13: 00000000686e1d48 R14: 0000000000499600 R15: 00007ffc5a0ed0d0
| [   63.243301][  T628] ------------[ cut here ]------------
| [ 63.243657][ T628] WARNING: CPU: 0 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) 
| [   63.244343][  T628] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   63.245527][  T628] Tainted: [W]=WARN
[   63.245778][  T628] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 63.246185][ 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) 
[ 63.246529][ T628] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   63.247694][  T628] RSP: 0018:ffffc90001006ef0 EFLAGS: 00010246
[   63.248101][  T628] RAX: 0000000000000000 RBX: ffff88800e822000 RCX: 0000000000000001
[   63.248590][  T628] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[   63.249071][  T628] RBP: ffffc90001006fd8 R08: 0000000000000000 R09: 0000000000000000
[   63.249602][  T628] R10: ffffc90001007008 R11: ffffffffb8d8d1e0 R12: 1ffff92000200de2
[   63.250087][  T628] R13: 00000000000005dc R14: ffffc90001007008 R15: ffff88800e822f48
[   63.250578][  T628] FS:  00007f896f73c800(0000) GS:ffff8880b2599000(0000) knlGS:0000000000000000
[   63.251161][  T628] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   63.251579][  T628] CR2: 00000000004e6888 CR3: 00000000110fb002 CR4: 0000000000772ef0
[   63.252069][  T628] PKRU: 55555554
[   63.252328][  T628] Call Trace:
[   63.252585][  T628]  <TASK>
[ 63.252756][ T628] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 63.253106][ T628] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 63.253459][ T628] netif_set_mtu (net/core/dev.c:9652) 
[ 63.253798][ T628] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 63.254137][ T628] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 63.254402][ T628] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 63.254765][ T628] br_add_if (net/bridge/br_if.c:697) 
[ 63.255032][ T628] do_set_master (net/core/rtnetlink.c:2948) 
[ 63.255381][ T628] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 63.255721][ T628] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 63.256068][ T628] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 63.256512][ T628] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 63.256841][ T628] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 63.257175][ T628] ? __kernel_text_address (kernel/extable.c:79) 
[ 63.257529][ T628] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 63.257881][ 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) 
[ 63.258234][ T628] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 63.258673][ T628] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 63.259026][ T628] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 63.259394][ T628] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 63.259751][ T628] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 63.260084][ T628] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 63.260454][ T628] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 63.260803][ T628] ? __create_object (mm/kmemleak.c:771) 
[ 63.261132][ T628] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 63.261472][ T628] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 63.261817][ T628] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 63.262212][ T628] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 63.262579][ T628] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 63.262939][ T628] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 63.263319][ T628] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 63.263705][ T628] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 63.264287][ T628] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 63.264628][ T628] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 63.264985][ T628] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 63.265542][ T628] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 63.265886][ T628] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 63.266214][ T628] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 63.266565][ T628] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 63.266915][ T628] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 63.267477][ T628] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 63.267847][ T628] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 63.268177][ 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) 
[ 63.268720][ T628] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 63.269069][ T628] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 63.269423][ T628] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 63.269782][ T628] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 63.270121][ T628] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 63.270694][ T628] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 63.271047][ T628] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 63.271410][ T628] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 63.271734][ T628] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 63.272392][ T628] ___sys_sendmsg (net/socket.c:2670) 
[ 63.272732][ T628] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 63.273061][ 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) 
[ 63.273714][ T628] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 63.274057][ T628] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 63.274412][ T628] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 63.274764][ T628] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 63.275327][ 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) 
[ 63.275676][ T628] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 63.275998][ T628] __sys_sendmsg (net/socket.c:2700) 
[ 63.276329][ T628] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 63.276948][ T628] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 63.277304][ T628] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 63.277639][ T628] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 63.277992][ T628] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   63.278619][  T628] RIP: 0033:0x7f896f9091e7
[ 63.278966][ 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)
[   63.280392][  T628] RSP: 002b:00007ffcf4d8e0b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   63.280884][  T628] RAX: ffffffffffffffda RBX: 00007ffcf4d8e7f0 RCX: 00007f896f9091e7
[   63.281405][  T628] RDX: 0000000000000000 RSI: 00007ffcf4d8e120 RDI: 0000000000000005
[   63.281920][  T628] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   63.282453][  T628] R10: 0000000019641910 R11: 0000000000000246 R12: 0000000000000005
[   63.283171][  T628] R13: 00000000686e1d4a R14: 0000000000499600 R15: 0000000000000000
| [   63.700716][  T631] ------------[ cut here ]------------
| [ 63.701098][ T631] WARNING: CPU: 1 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) 
| [   63.701805][  T631] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   63.703179][  T631] Tainted: [W]=WARN
[   63.703447][  T631] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 63.703876][ 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) 
[ 63.704231][ T631] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   63.705453][  T631] RSP: 0018:ffffc90001027080 EFLAGS: 00010246
[   63.705897][  T631] RAX: 0000000000000000 RBX: ffff88800e822000 RCX: 0000000000000001
[   63.706430][  T631] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[   63.706947][  T631] RBP: ffffc90001027168 R08: 0000000000000000 R09: 0000000000000000
[   63.707471][  T631] R10: ffffc90001027198 R11: ffffffffb8d8d1e0 R12: 1ffff92000204e14
[   63.707988][  T631] R13: 00000000000005dc R14: ffffc90001027198 R15: ffff88800e822f48
[   63.708523][  T631] FS:  00007f1929d92800(0000) GS:ffff8880b2619000(0000) knlGS:0000000000000000
[   63.709123][  T631] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   63.709570][  T631] CR2: 000000000043d940 CR3: 00000000110fb001 CR4: 0000000000772ef0
[   63.710090][  T631] PKRU: 55555554
[   63.710358][  T631] Call Trace:
[   63.710625][  T631]  <TASK>
[ 63.710808][ T631] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 63.711159][ T631] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 63.711541][ T631] netif_set_mtu (net/core/dev.c:9652) 
[ 63.711897][ T631] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 63.712268][ T631] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 63.712534][ T631] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 63.712879][ T631] br_add_if (net/bridge/br_if.c:697) 
[ 63.713151][ T631] do_set_master (net/core/rtnetlink.c:2948) 
[ 63.713509][ T631] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 63.713865][ T631] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 63.714216][ T631] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 63.714561][ T631] ? __dev_get_by_name (net/core/dev.c:865) 
[ 63.714902][ T631] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 63.715258][ T631] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 63.715594][ T631] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 63.715933][ T631] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 63.716284][ T631] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 63.716636][ T631] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 63.716983][ T631] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 63.717353][ T631] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 63.717681][ T631] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 63.718033][ T631] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 63.718397][ T631] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 63.718751][ T631] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 63.719087][ T631] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 63.719441][ T631] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 63.719774][ T631] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 63.720112][ T631] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 63.720470][ T631] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 63.720824][ 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) 
[ 63.721171][ T631] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 63.721518][ T631] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 63.721859][ T631] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 63.722211][ T631] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 63.722578][ T631] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 63.722915][ T631] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 63.723270][ T631] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 63.723628][ T631] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 63.723969][ T631] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 63.724420][ T631] ___sys_sendmsg (net/socket.c:2670) 
[ 63.724762][ T631] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 63.725098][ T631] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 63.725442][ T631] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 63.725788][ T631] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 63.726140][ T631] ? __handle_mm_fault (mm/memory.c:6212) 
[ 63.726492][ T631] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 63.726837][ T631] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 63.727203][ T631] __sys_sendmsg (net/socket.c:2700) 
[ 63.727541][ T631] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 63.727889][ 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) 
[ 63.728242][ 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) 
[ 63.728598][ T631] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 63.728935][ T631] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 63.729288][ T631] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   63.729716][  T631] RIP: 0033:0x7f1929f5f1e7
[ 63.730062][ 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)
[   63.731348][  T631] RSP: 002b:00007ffdf9765488 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   63.731877][  T631] RAX: ffffffffffffffda RBX: 00007ffdf9765bc0 RCX: 00007f1929f5f1e7
[   63.732411][  T631] RDX: 0000000000000000 RSI: 00007ffdf97654f0 RDI: 0000000000000005
[   63.732947][  T631] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   63.733484][  T631] R10: 00007f1929fedac0 R11: 0000000000000246 R12: 00007ffdf9765bf8
[   63.734004][  T631] R13: 00000000686e1d4b R14: 0000000000499600 R15: 00007ffdf97655e0
| [   75.245222][   T69] ------------[ cut here ]------------
| [ 75.245563][ 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) 
| [   75.246096][   T69] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   75.247512][   T69] Tainted: [W]=WARN
[   75.247743][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   75.248147][   T69] Workqueue: netns cleanup_net
[ 75.248488][ 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) 
[ 75.248805][ T69] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   75.249933][   T69] RSP: 0018:ffffc900004a75b0 EFLAGS: 00010246
[   75.250329][   T69] RAX: 0000000000000000 RBX: ffff88800e92a000 RCX: 0000000000000001
[   75.250789][   T69] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[   75.251258][   T69] RBP: ffffc900004a7698 R08: 0000000000000000 R09: 0000000000000000
[   75.251717][   T69] R10: ffffc900004a76c8 R11: ffffffffb8d8d1e0 R12: 1ffff92000094eba
[   75.252177][   T69] R13: 00000000000005dc R14: ffffc900004a76c8 R15: ffff88800e92af48
[   75.252647][   T69] FS:  0000000000000000(0000) GS:ffff8880b2719000(0000) knlGS:0000000000000000
[   75.253187][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   75.253584][   T69] CR2: 00007f0bec7db480 CR3: 000000001d34a001 CR4: 0000000000772ef0
[   75.254052][   T69] PKRU: 55555554
[   75.254296][   T69] Call Trace:
[   75.254528][   T69]  <TASK>
[ 75.254684][ 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) 
[ 75.255073][ T69] ? br_del_if (net/bridge/br_if.c:742) 
[ 75.255318][ T69] ? br_device_event (net/bridge/br.c:141) 
[ 75.255622][ T69] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 75.255935][ T69] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 75.256240][ T69] ? cleanup_net (net/core/net_namespace.c:684) 
[ 75.256559][ T69] ? process_one_work (kernel/workqueue.c:3238) 
[ 75.256867][ T69] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 75.257174][ T69] ? kthread (kernel/kthread.c:464) 
[ 75.257417][ T69] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 75.257725][ T69] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 75.258031][ T69] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 75.258354][ T69] netif_set_mtu (net/core/dev.c:9652) 
[ 75.258668][ T69] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 75.258996][ T69] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 75.259232][ T69] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 75.259562][ T69] br_del_if (net/bridge/br_if.c:743) 
[ 75.259797][ T69] br_device_event (net/bridge/br.c:141) 
[ 75.260107][ T69] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 75.260425][ T69] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 75.260741][ T69] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 75.261139][ 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) 
[ 75.261452][ T69] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 75.261835][ T69] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 75.262214][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 75.262597][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 75.262987][ T69] default_device_exit_batch (net/core/dev.c:12673) 
[ 75.263302][ T69] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 75.263690][ T69] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 75.264001][ T69] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 75.264309][ T69] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 75.264651][ T69] cleanup_net (net/core/net_namespace.c:684) 
[ 75.264948][ T69] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 75.265256][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 75.265555][ T69] process_one_work (kernel/workqueue.c:3238) 
[ 75.265858][ T69] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 75.266160][ T69] ? assign_work (kernel/workqueue.c:1200) 
[ 75.266461][ T69] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 75.266765][ T69] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 75.267060][ T69] kthread (kernel/kthread.c:464) 
[ 75.267290][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 75.267582][ T69] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 75.267871][ T69] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 75.268168][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 75.268466][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 75.268755][ T69] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 75.269047][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 75.269352][ T69] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   75.777675][   T69] ------------[ cut here ]------------
| [ 75.777988][ 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) 
| [   75.778532][   T69] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   75.779860][   T69] Tainted: [W]=WARN
[   75.780166][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   75.780753][   T69] Workqueue: netns cleanup_net
[ 75.781305][ 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) 
[ 75.781828][ T69] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   75.783651][   T69] RSP: 0018:ffffc900004a75b0 EFLAGS: 00010246
[   75.784315][   T69] RAX: 0000000000000000 RBX: ffff88800e822000 RCX: 0000000000000001
[   75.784855][   T69] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[   75.785409][   T69] RBP: ffffc900004a7698 R08: 0000000000000000 R09: 0000000000000000
[   75.786141][   T69] R10: ffffc900004a76c8 R11: ffffffffb8d8d1e0 R12: 1ffff92000094eba
[   75.786916][   T69] R13: 00000000000005dc R14: ffffc900004a76c8 R15: ffff88800e822f48
[   75.787692][   T69] FS:  0000000000000000(0000) GS:ffff8880b2599000(0000) knlGS:0000000000000000
[   75.788587][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   75.789133][   T69] CR2: 00007f9bc663e270 CR3: 000000000d373005 CR4: 0000000000772ef0
[   75.789622][   T69] PKRU: 55555554
[   75.789938][   T69] Call Trace:
[   75.790163][   T69]  <TASK>
[ 75.790330][ 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) 
[ 75.790722][ T69] ? br_del_if (net/bridge/br_if.c:742) 
[ 75.790947][ T69] ? br_device_event (net/bridge/br.c:141) 
[ 75.791336][ T69] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 75.791707][ T69] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 75.792002][ T69] ? cleanup_net (net/core/net_namespace.c:684) 
[ 75.792412][ T69] ? process_one_work (kernel/workqueue.c:3238) 
[ 75.792798][ T69] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 75.793190][ T69] ? kthread (kernel/kthread.c:464) 
[ 75.793426][ T69] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 75.793731][ T69] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 75.794115][ T69] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 75.794435][ T69] netif_set_mtu (net/core/dev.c:9652) 
[ 75.794755][ T69] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 75.795160][ T69] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 75.795459][ T69] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 75.795782][ T69] br_del_if (net/bridge/br_if.c:743) 
[ 75.796091][ T69] br_device_event (net/bridge/br.c:141) 
[ 75.796515][ T69] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 75.796887][ T69] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 75.797195][ T69] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 75.797670][ 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) 
[ 75.797976][ T69] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 75.798345][ T69] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 75.798818][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 75.799272][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 75.799849][ T69] default_device_exit_batch (net/core/dev.c:12673) 
[ 75.800184][ T69] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 75.800584][ T69] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 75.800898][ T69] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 75.801299][ T69] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 75.801666][ T69] cleanup_net (net/core/net_namespace.c:684) 
[ 75.801962][ T69] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 75.802353][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 75.802674][ T69] process_one_work (kernel/workqueue.c:3238) 
[ 75.802981][ T69] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 75.803378][ T69] ? assign_work (kernel/workqueue.c:1200) 
[ 75.803752][ T69] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 75.804147][ T69] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 75.804523][ T69] kthread (kernel/kthread.c:464) 
[ 75.804754][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 75.805128][ T69] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 75.805429][ T69] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 75.805735][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 75.806043][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 75.806489][ T69] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 75.806864][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 75.807210][ T69] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   87.258098][  T801] ------------[ cut here ]------------
| [ 87.258427][ T801] WARNING: CPU: 3 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) 
| [   87.259013][  T801] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   87.260103][  T801] Tainted: [W]=WARN
[   87.260364][  T801] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 87.260734][ 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) 
[ 87.261040][ T801] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   87.262123][  T801] RSP: 0018:ffffc90001676ef0 EFLAGS: 00010246
[   87.262515][  T801] RAX: 0000000000000000 RBX: ffff888005b7a000 RCX: 0000000000000001
[   87.262958][  T801] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[   87.263415][  T801] RBP: ffffc90001676fd8 R08: 0000000000000000 R09: 0000000000000000
[   87.263861][  T801] R10: ffffc90001677008 R11: ffffffffb8d8d1e0 R12: 1ffff920002cede2
[   87.264317][  T801] R13: 00000000000005dc R14: ffffc90001677008 R15: ffff888005b7af48
[   87.264759][  T801] FS:  00007fd690d13800(0000) GS:ffff8880b2719000(0000) knlGS:0000000000000000
[   87.265301][  T801] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.265676][  T801] CR2: 00000000004e6888 CR3: 0000000010973001 CR4: 0000000000772ef0
[   87.266124][  T801] PKRU: 55555554
[   87.266497][  T801] Call Trace:
[   87.266729][  T801]  <TASK>
[ 87.266885][ T801] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 87.267182][ T801] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 87.267635][ T801] netif_set_mtu (net/core/dev.c:9652) 
[ 87.267929][ T801] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 87.268236][ T801] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 87.268602][ T801] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 87.268905][ T801] br_add_if (net/bridge/br_if.c:697) 
[ 87.269143][ T801] do_set_master (net/core/rtnetlink.c:2948) 
[ 87.269592][ T801] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 87.269894][ T801] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 87.270191][ T801] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 87.270700][ T801] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 87.270995][ T801] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 87.271417][ T801] ? __kernel_text_address (kernel/extable.c:79) 
[ 87.271717][ T801] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 87.272013][ T801] ? __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) 
[ 87.272319][ T801] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 87.272683][ T801] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 87.272981][ T801] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 87.273289][ T801] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 87.273583][ T801] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 87.273879][ T801] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 87.274180][ T801] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 87.274486][ T801] ? __create_object (mm/kmemleak.c:771) 
[ 87.274783][ T801] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 87.275082][ T801] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 87.275396][ T801] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 87.275765][ T801] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 87.276066][ T801] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 87.276431][ T801] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 87.276725][ T801] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 87.277024][ T801] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 87.277323][ T801] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 87.277618][ T801] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 87.277914][ T801] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 87.278207][ T801] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 87.278519][ T801] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 87.278821][ T801] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 87.279120][ T801] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 87.279441][ T801] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 87.279739][ T801] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 87.280045][ T801] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 87.280346][ 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) 
[ 87.280641][ T801] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 87.280940][ T801] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 87.281237][ T801] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 87.281546][ T801] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 87.281844][ T801] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 87.282142][ T801] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 87.282453][ T801] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 87.282750][ T801] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 87.283046][ T801] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 87.283436][ T801] ___sys_sendmsg (net/socket.c:2670) 
[ 87.283727][ T801] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 87.284021][ T801] ? __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) 
[ 87.284397][ T801] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 87.284694][ T801] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 87.284991][ T801] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 87.285307][ T801] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 87.285606][ T801] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 87.285901][ T801] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 87.286203][ T801] __sys_sendmsg (net/socket.c:2700) 
[ 87.286510][ T801] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 87.286873][ T801] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 87.287179][ T801] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 87.287487][ T801] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 87.287790][ T801] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   87.288156][  T801] RIP: 0033:0x7fd690ee01e7
[ 87.288471][ 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)
[   87.289537][  T801] RSP: 002b:00007ffcf552d978 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   87.289990][  T801] RAX: ffffffffffffffda RBX: 00007ffcf552e0b0 RCX: 00007fd690ee01e7
[   87.290441][  T801] RDX: 0000000000000000 RSI: 00007ffcf552d9e0 RDI: 0000000000000005
[   87.290880][  T801] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   87.291334][  T801] R10: 000000001a8d1910 R11: 0000000000000246 R12: 0000000000000005
[   87.291785][  T801] R13: 00000000686e1d62 R14: 0000000000499600 R15: 0000000000000000
| [   87.674193][  T804] ------------[ cut here ]------------
| [ 87.674518][ T804] WARNING: CPU: 0 PID: 804 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) 
| [   87.675126][  T804] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   87.676207][  T804] Tainted: [W]=WARN
[   87.676591][  T804] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 87.676970][ T804] 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) 
[ 87.677434][ T804] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   87.678660][  T804] RSP: 0018:ffffc900016a7080 EFLAGS: 00010246
[   87.679045][  T804] RAX: 0000000000000000 RBX: ffff888005b7a000 RCX: 0000000000000001
[   87.679657][  T804] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[   87.680116][  T804] RBP: ffffc900016a7168 R08: 0000000000000000 R09: 0000000000000000
[   87.680711][  T804] R10: ffffc900016a7198 R11: ffffffffb96ceab8 R12: 1ffff920002d4e14
[   87.681162][  T804] R13: 00000000000005dc R14: ffffc900016a7198 R15: ffff888005b7af48
[   87.681760][  T804] FS:  00007f5de4e0d800(0000) GS:ffff8880b2599000(0000) knlGS:0000000000000000
[   87.682444][  T804] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.682825][  T804] CR2: 000000000043d940 CR3: 00000000098e4003 CR4: 0000000000772ef0
[   87.683360][  T804] PKRU: 55555554
[   87.683588][  T804] Call Trace:
[   87.683816][  T804]  <TASK>
[ 87.683973][ T804] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 87.684303][ T804] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 87.684619][ T804] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 87.684996][ T804] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 87.685309][ T804] netif_set_mtu (net/core/dev.c:9652) 
[ 87.685611][ T804] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 87.685926][ T804] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 87.686319][ T804] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 87.686557][ T804] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 87.686864][ T804] br_add_if (net/bridge/br_if.c:697) 
[ 87.687104][ T804] do_set_master (net/core/rtnetlink.c:2948) 
[ 87.687416][ T804] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 87.687722][ T804] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 87.688033][ T804] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 87.688343][ T804] ? __dev_get_by_name (net/core/dev.c:865) 
[ 87.688647][ T804] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 87.688956][ T804] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 87.689289][ T804] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 87.689593][ T804] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 87.689901][ T804] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 87.690212][ T804] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 87.690535][ T804] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 87.690855][ T804] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 87.691161][ T804] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 87.691473][ T804] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 87.691774][ T804] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 87.692081][ T804] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 87.692398][ T804] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 87.692707][ T804] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 87.693010][ T804] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 87.693323][ T804] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 87.693643][ T804] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 87.693943][ T804] ? 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) 
[ 87.694265][ T804] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 87.694573][ T804] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 87.694873][ T804] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 87.695180][ T804] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 87.695500][ T804] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 87.695809][ T804] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 87.696121][ T804] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 87.696434][ T804] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 87.696735][ T804] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 87.697125][ T804] ___sys_sendmsg (net/socket.c:2670) 
[ 87.697438][ T804] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 87.697746][ T804] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 87.698058][ T804] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 87.698432][ T804] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 87.698739][ T804] ? __handle_mm_fault (mm/memory.c:6212) 
[ 87.699039][ T804] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 87.699374][ T804] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 87.699698][ T804] __sys_sendmsg (net/socket.c:2700) 
[ 87.700004][ T804] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 87.700318][ T804] ? 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) 
[ 87.700629][ T804] ? 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) 
[ 87.700932][ T804] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 87.701237][ T804] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 87.701585][ T804] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   87.701979][  T804] RIP: 0033:0x7f5de4fda1e7
[ 87.702313][ T804] 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)
[   87.703446][  T804] RSP: 002b:00007fff9a575b98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   87.703902][  T804] RAX: ffffffffffffffda RBX: 00007fff9a5762d0 RCX: 00007f5de4fda1e7
[   87.704376][  T804] RDX: 0000000000000000 RSI: 00007fff9a575c00 RDI: 0000000000000005
[   87.704839][  T804] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   87.705335][  T804] R10: 00007f5de5068ac0 R11: 0000000000000246 R12: 00007fff9a576308
[   87.705809][  T804] R13: 00000000686e1d63 R14: 0000000000499600 R15: 00007fff9a575cf0
| [   89.830108][  T821] ------------[ cut here ]------------
| [ 89.830509][ T821] WARNING: CPU: 0 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) 
| [   89.831176][  T821] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   89.832387][  T821] Tainted: [W]=WARN
[   89.832647][  T821] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 89.833060][ 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) 
[ 89.833423][ T821] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   89.834619][  T821] RSP: 0018:ffffc90001716ef0 EFLAGS: 00010246
[   89.835040][  T821] RAX: 0000000000000000 RBX: ffff88800a11a000 RCX: 0000000000000001
[   89.835549][  T821] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[   89.836053][  T821] RBP: ffffc90001716fd8 R08: 0000000000000000 R09: 0000000000000000
[   89.836561][  T821] R10: ffffc90001717008 R11: ffffffffb8d8d1e0 R12: 1ffff920002e2de2
[   89.837055][  T821] R13: 00000000000005dc R14: ffffc90001717008 R15: ffff88800a11af48
[   89.837569][  T821] FS:  00007fe932263800(0000) GS:ffff8880b2599000(0000) knlGS:0000000000000000
[   89.838163][  T821] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.838599][  T821] CR2: 00000000004e6888 CR3: 000000000f34c006 CR4: 0000000000772ef0
[   89.839105][  T821] PKRU: 55555554
[   89.839384][  T821] Call Trace:
[   89.839635][  T821]  <TASK>
[ 89.839812][ T821] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 89.840148][ T821] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 89.840518][ T821] netif_set_mtu (net/core/dev.c:9652) 
[ 89.840852][ T821] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 89.841199][ T821] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 89.841467][ T821] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 89.841811][ T821] br_add_if (net/bridge/br_if.c:697) 
[ 89.842073][ T821] do_set_master (net/core/rtnetlink.c:2948) 
[ 89.842419][ T821] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 89.842767][ T821] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 89.843108][ T821] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 89.843543][ T821] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 89.843881][ T821] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 89.844270][ T821] ? __kernel_text_address (kernel/extable.c:79) 
[ 89.844617][ T821] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 89.844953][ T821] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 89.845306][ T821] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 89.845723][ T821] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 89.846061][ T821] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 89.846407][ T821] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 89.846739][ T821] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 89.847089][ T821] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 89.847443][ T821] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 89.847777][ T821] ? __create_object (mm/kmemleak.c:771) 
[ 89.848117][ T821] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 89.848463][ T821] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 89.848800][ T821] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 89.849212][ T821] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 89.849574][ T821] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 89.849919][ T821] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 89.850265][ T821] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 89.850611][ T821] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 89.850947][ T821] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 89.851291][ T821] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 89.851634][ T821] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 89.851968][ T821] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 89.852312][ T821] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 89.852651][ T821] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 89.852986][ T821] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 89.853334][ T821] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 89.853667][ T821] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 89.854012][ T821] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 89.854353][ 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) 
[ 89.854690][ T821] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 89.855030][ T821] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 89.855377][ T821] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 89.855729][ T821] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 89.856067][ T821] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 89.856417][ T821] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 89.856760][ T821] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 89.857093][ T821] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 89.857442][ T821] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 89.857868][ T821] ___sys_sendmsg (net/socket.c:2670) 
[ 89.858209][ T821] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 89.858556][ T821] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 89.858974][ T821] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 89.859335][ T821] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 89.859673][ T821] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 89.860012][ T821] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 89.860363][ T821] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 89.860702][ T821] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 89.861044][ T821] __sys_sendmsg (net/socket.c:2700) 
[ 89.861612][ T821] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 89.862029][ T821] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 89.862386][ T821] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 89.862726][ T821] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 89.863291][ T821] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   89.863725][  T821] RIP: 0033:0x7fe9324301e7
[ 89.864068][ 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)
[   89.865496][  T821] RSP: 002b:00007ffebd3bb5a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   89.865999][  T821] RAX: ffffffffffffffda RBX: 00007ffebd3bbce0 RCX: 00007fe9324301e7
[   89.866746][  T821] RDX: 0000000000000000 RSI: 00007ffebd3bb610 RDI: 0000000000000005
[   89.867263][  T821] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   89.867768][  T821] R10: 000000003e175910 R11: 0000000000000246 R12: 0000000000000005
[   89.868509][  T821] R13: 00000000686e1d65 R14: 0000000000499600 R15: 0000000000000000
| [   90.246563][  T824] ------------[ cut here ]------------
| [ 90.246903][ T824] WARNING: CPU: 2 PID: 824 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   90.247532][  T824] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   90.248677][  T824] Tainted: [W]=WARN
[   90.248920][  T824] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 90.249351][ T824] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 90.249681][ T824] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   90.251866][  T824] RSP: 0018:ffffc900011a7080 EFLAGS: 00010246
[   90.252280][  T824] RAX: 0000000000000000 RBX: ffff88800a11a000 RCX: 0000000000000001
[   90.252747][  T824] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[   90.253215][  T824] RBP: ffffc900011a7168 R08: 0000000000000000 R09: 0000000000000000
[   90.253707][  T824] R10: ffffc900011a7198 R11: ffffffffb8d8d1e0 R12: 1ffff92000234e14
[   90.254174][  T824] R13: 00000000000005dc R14: ffffc900011a7198 R15: ffff88800a11af48
[   90.254650][  T824] FS:  00007ff159a19800(0000) GS:ffff8880b2699000(0000) knlGS:0000000000000000
[   90.255200][  T824] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.255612][  T824] CR2: 000000000043d940 CR3: 000000000e883003 CR4: 0000000000772ef0
[   90.256081][  T824] PKRU: 55555554
[   90.256331][  T824] Call Trace:
[   90.256572][  T824]  <TASK>
[ 90.256744][ T824] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 90.257062][ T824] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 90.257420][ T824] netif_set_mtu (net/core/dev.c:9652) 
[ 90.257747][ T824] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 90.258083][ T824] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 90.258346][ T824] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 90.258667][ T824] br_add_if (net/bridge/br_if.c:697) 
[ 90.258923][ T824] do_set_master (net/core/rtnetlink.c:2948) 
[ 90.259258][ T824] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 90.259587][ T824] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 90.259911][ T824] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 90.260288][ T824] ? __dev_get_by_name (net/core/dev.c:865) 
[ 90.260612][ T824] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 90.260930][ T824] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 90.261276][ T824] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 90.261605][ T824] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 90.261924][ T824] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 90.262262][ T824] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 90.262591][ T824] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 90.262924][ T824] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 90.263239][ T824] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 90.263574][ T824] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 90.263903][ T824] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 90.264239][ T824] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 90.264590][ T824] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 90.264937][ T824] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 90.265302][ T824] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 90.265643][ T824] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 90.265988][ T824] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 90.266331][ T824] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 90.266668][ T824] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 90.267004][ T824] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 90.267356][ T824] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 90.267693][ T824] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 90.268029][ T824] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 90.268368][ T824] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 90.268696][ T824] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 90.269017][ T824] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 90.269367][ T824] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 90.269778][ T824] ___sys_sendmsg (net/socket.c:2670) 
[ 90.270107][ T824] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 90.270442][ T824] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 90.270763][ T824] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 90.271080][ T824] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 90.271415][ T824] ? __handle_mm_fault (mm/memory.c:6212) 
[ 90.271731][ T824] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 90.272056][ T824] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 90.272412][ T824] __sys_sendmsg (net/socket.c:2700) 
[ 90.272735][ T824] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 90.273047][ T824] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 90.273391][ T824] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 90.273712][ T824] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 90.274032][ T824] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 90.274367][ T824] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   90.274756][  T824] RIP: 0033:0x7ff159be61e7
[ 90.275087][ T824] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   90.276197][  T824] RSP: 002b:00007fff58652b58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   90.276686][  T824] RAX: ffffffffffffffda RBX: 00007fff58653290 RCX: 00007ff159be61e7
[   90.277158][  T824] RDX: 0000000000000000 RSI: 00007fff58652bc0 RDI: 0000000000000005
[   90.277651][  T824] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   90.278120][  T824] R10: 00007ff159c74ac0 R11: 0000000000000246 R12: 00007fff586532c8
[   90.278606][  T824] R13: 00000000686e1d65 R14: 0000000000499600 R15: 00007fff58652cb0
| [  117.882965][   T69] ------------[ cut here ]------------
| [ 117.883304][ 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) 
| [  117.883810][   T69] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  117.884981][   T69] Tainted: [W]=WARN
[  117.885205][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  117.885586][   T69] Workqueue: netns cleanup_net
[ 117.885893][ 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) 
[ 117.886192][ T69] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  117.887278][   T69] RSP: 0018:ffffc900004a75b0 EFLAGS: 00010246
[  117.887655][   T69] RAX: 0000000000000000 RBX: ffff888005b7a000 RCX: 0000000000000001
[  117.888092][   T69] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[  117.888555][   T69] RBP: ffffc900004a7698 R08: 0000000000000000 R09: 0000000000000000
[  117.889002][   T69] R10: ffffc900004a76c8 R11: ffffffffb8d8d1e0 R12: 1ffff92000094eba
[  117.889478][   T69] R13: 00000000000005dc R14: ffffc900004a76c8 R15: ffff888005b7af48
[  117.889915][   T69] FS:  0000000000000000(0000) GS:ffff8880b2599000(0000) knlGS:0000000000000000
[  117.890448][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  117.890827][   T69] CR2: 00007ffdec155f78 CR3: 000000001031d004 CR4: 0000000000772ef0
[  117.891299][   T69] PKRU: 55555554
[  117.891523][   T69] Call Trace:
[  117.891745][   T69]  <TASK>
[ 117.891892][ 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) 
[ 117.892272][ T69] ? br_del_if (net/bridge/br_if.c:742) 
[ 117.892496][ T69] ? br_device_event (net/bridge/br.c:141) 
[ 117.892788][ T69] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 117.893088][ T69] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 117.893399][ T69] ? cleanup_net (net/core/net_namespace.c:684) 
[ 117.893698][ T69] ? process_one_work (kernel/workqueue.c:3238) 
[ 117.893999][ T69] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 117.894307][ T69] ? kthread (kernel/kthread.c:464) 
[ 117.894531][ T69] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 117.894826][ T69] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 117.895123][ T69] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 117.895459][ T69] netif_set_mtu (net/core/dev.c:9652) 
[ 117.895758][ T69] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 117.896069][ T69] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 117.896302][ T69] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 117.896602][ T69] br_del_if (net/bridge/br_if.c:743) 
[ 117.896823][ T69] br_device_event (net/bridge/br.c:141) 
[ 117.897118][ T69] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 117.897435][ T69] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 117.897739][ T69] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 117.898109][ 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) 
[ 117.898416][ T69] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 117.898786][ T69] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 117.899150][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 117.899555][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 117.899935][ T69] default_device_exit_batch (net/core/dev.c:12673) 
[ 117.900313][ T69] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 117.900698][ T69] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 117.900997][ T69] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 117.901310][ T69] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 117.901615][ T69] cleanup_net (net/core/net_namespace.c:684) 
[ 117.901913][ T69] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 117.902212][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 117.902520][ T69] process_one_work (kernel/workqueue.c:3238) 
[ 117.902824][ T69] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 117.903126][ T69] ? assign_work (kernel/workqueue.c:1200) 
[ 117.903447][ T69] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 117.903757][ T69] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 117.904058][ T69] kthread (kernel/kthread.c:464) 
[ 117.904292][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 117.904582][ T69] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 117.904876][ T69] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 117.905171][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 117.905476][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 117.905772][ T69] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 117.906072][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 117.906374][ T69] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  118.361780][   T69] ------------[ cut here ]------------
| [ 118.362123][ 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) 
| [  118.362671][   T69] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  118.363831][   T69] Tainted: [W]=WARN
[  118.364054][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  118.364442][   T69] Workqueue: netns cleanup_net
[ 118.364758][ 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) 
[ 118.365066][ T69] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  118.366160][   T69] RSP: 0018:ffffc900004a75b0 EFLAGS: 00010246
[  118.366733][   T69] RAX: 0000000000000000 RBX: ffff88800a11a000 RCX: 0000000000000001
[  118.367170][   T69] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[  118.368031][   T69] RBP: ffffc900004a7698 R08: 0000000000000000 R09: 0000000000000000
[  118.368790][   T69] R10: ffffc900004a76c8 R11: ffffffffb8d8d1e0 R12: 1ffff92000094eba
[  118.369229][   T69] R13: 00000000000005dc R14: ffffc900004a76c8 R15: ffff88800a11af48
[  118.369836][   T69] FS:  0000000000000000(0000) GS:ffff8880b2619000(0000) knlGS:0000000000000000
[  118.370400][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  118.370780][   T69] CR2: 00007f2ea7c6f000 CR3: 000000001d34a004 CR4: 0000000000772ef0
[  118.371216][   T69] PKRU: 55555554
[  118.371463][   T69] Call Trace:
[  118.371683][   T69]  <TASK>
[ 118.371831][ 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) 
[ 118.372195][ T69] ? br_del_if (net/bridge/br_if.c:742) 
[ 118.372438][ T69] ? br_device_event (net/bridge/br.c:141) 
[ 118.372729][ T69] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 118.373034][ T69] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 118.373352][ T69] ? cleanup_net (net/core/net_namespace.c:684) 
[ 118.373641][ T69] ? process_one_work (kernel/workqueue.c:3238) 
[ 118.373931][ T69] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 118.374222][ T69] ? kthread (kernel/kthread.c:464) 
[ 118.374480][ T69] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 118.374776][ T69] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 118.375078][ T69] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 118.375411][ T69] netif_set_mtu (net/core/dev.c:9652) 
[ 118.375702][ T69] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 118.376009][ T69] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 118.376228][ T69] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 118.376549][ T69] br_del_if (net/bridge/br_if.c:743) 
[ 118.376774][ T69] br_device_event (net/bridge/br.c:141) 
[ 118.377065][ T69] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 118.377395][ T69] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 118.377694][ T69] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 118.378057][ 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) 
[ 118.378389][ T69] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 118.378752][ T69] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 118.379113][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 118.379518][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 118.379900][ T69] default_device_exit_batch (net/core/dev.c:12673) 
[ 118.380195][ T69] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 118.380589][ T69] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 118.380885][ T69] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 118.381171][ T69] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 118.381498][ T69] cleanup_net (net/core/net_namespace.c:684) 
[ 118.381789][ T69] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 118.382089][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 118.382429][ T69] process_one_work (kernel/workqueue.c:3238) 
[ 118.382735][ T69] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 118.383032][ T69] ? assign_work (kernel/workqueue.c:1200) 
[ 118.383347][ T69] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 118.383650][ T69] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 118.383940][ T69] kthread (kernel/kthread.c:464) 
[ 118.384165][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 118.384475][ T69] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 118.384769][ T69] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 118.385061][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 118.385371][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 118.385662][ T69] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 118.385948][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 118.386235][ T69] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  129.668607][ T1069] ------------[ cut here ]------------
| [ 129.668926][ T1069] WARNING: CPU: 0 PID: 1069 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  129.670003][ T1069] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  129.671091][ T1069] Tainted: [W]=WARN
[  129.671331][ T1069] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 129.671706][ 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) 
[ 129.672014][ T1069] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  129.673120][ T1069] RSP: 0018:ffffc90001a46ef0 EFLAGS: 00010246
[  129.673538][ T1069] RAX: 0000000000000000 RBX: ffff8880109aa000 RCX: 0000000000000001
[  129.673995][ T1069] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[  129.674460][ T1069] RBP: ffffc90001a46fd8 R08: 0000000000000000 R09: 0000000000000000
[  129.674908][ T1069] R10: ffffc90001a47008 R11: ffffffffb8d8d1e0 R12: 1ffff92000348de2
[  129.675368][ T1069] R13: 00000000000005dc R14: ffffc90001a47008 R15: ffff8880109aaf48
[  129.675823][ T1069] FS:  00007efcf9d43800(0000) GS:ffff8880b2599000(0000) knlGS:0000000000000000
[  129.676347][ T1069] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  129.676756][ T1069] CR2: 00000000004e6888 CR3: 000000001156f002 CR4: 0000000000772ef0
[  129.677204][ T1069] PKRU: 55555554
[  129.677447][ T1069] Call Trace:
[  129.677681][ T1069]  <TASK>
[ 129.677842][ T1069] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 129.678144][ T1069] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 129.678466][ T1069] netif_set_mtu (net/core/dev.c:9652) 
[ 129.678779][ T1069] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 129.679089][ T1069] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 129.679335][ T1069] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 129.679641][ T1069] br_add_if (net/bridge/br_if.c:697) 
[ 129.679874][ T1069] do_set_master (net/core/rtnetlink.c:2948) 
[ 129.680172][ T1069] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 129.680484][ T1069] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 129.680814][ T1069] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 129.681192][ T1069] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 129.681508][ T1069] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 129.681805][ T1069] ? __kernel_text_address (kernel/extable.c:79) 
[ 129.682110][ T1069] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 129.682421][ T1069] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 129.682734][ T1069] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 129.683100][ T1069] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 129.683412][ T1069] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 129.683705][ T1069] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 129.684000][ T1069] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 129.684308][ T1069] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 129.684641][ T1069] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 129.684941][ T1069] ? __create_object (mm/kmemleak.c:771) 
[ 129.685241][ T1069] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 129.685579][ T1069] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 129.685877][ T1069] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 129.686243][ T1069] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 129.686573][ T1069] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 129.686881][ T1069] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 129.687180][ T1069] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 129.687491][ T1069] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 129.687787][ T1069] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 129.688080][ T1069] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 129.688387][ T1069] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 129.688714][ T1069] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 129.689011][ T1069] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 129.689347][ T1069] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 129.689653][ T1069] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 129.689949][ T1069] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 129.690260][ T1069] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 129.690565][ T1069] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 129.690857][ 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) 
[ 129.691154][ T1069] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 129.691469][ T1069] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 129.691765][ T1069] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 129.692065][ T1069] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 129.692374][ T1069] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 129.692703][ T1069] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 129.693007][ T1069] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 129.693363][ T1069] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 129.693670][ T1069] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 129.694055][ T1069] ___sys_sendmsg (net/socket.c:2670) 
[ 129.694355][ T1069] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 129.694652][ T1069] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 129.695020][ T1069] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 129.695329][ T1069] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 129.695632][ T1069] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 129.695936][ T1069] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 129.696231][ T1069] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 129.696556][ T1069] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 129.696871][ T1069] __sys_sendmsg (net/socket.c:2700) 
[ 129.697164][ T1069] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 129.697552][ T1069] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 129.697860][ T1069] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 129.698157][ T1069] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 129.698472][ T1069] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  129.698853][ T1069] RIP: 0033:0x7efcf9f101e7
[ 129.699161][ 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)
[  129.700226][ T1069] RSP: 002b:00007ffe89ac1d98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  129.700725][ T1069] RAX: ffffffffffffffda RBX: 00007ffe89ac24d0 RCX: 00007efcf9f101e7
[  129.701167][ T1069] RDX: 0000000000000000 RSI: 00007ffe89ac1e00 RDI: 0000000000000005
[  129.701631][ T1069] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  129.702072][ T1069] R10: 000000000d2da910 R11: 0000000000000246 R12: 0000000000000005
[  129.702531][ T1069] R13: 00000000686e1d8d R14: 0000000000499600 R15: 0000000000000000
| [  130.077969][ T1072] ------------[ cut here ]------------
| [ 130.078297][ T1072] WARNING: CPU: 3 PID: 1072 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  130.078889][ T1072] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  130.079999][ T1072] Tainted: [W]=WARN
[  130.080228][ T1072] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 130.080620][ T1072] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 130.080932][ T1072] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  130.082017][ T1072] RSP: 0018:ffffc90001e77080 EFLAGS: 00010246
[  130.082417][ T1072] RAX: 0000000000000000 RBX: ffff8880109aa000 RCX: 0000000000000001
[  130.082871][ T1072] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[  130.083334][ T1072] RBP: ffffc90001e77168 R08: 0000000000000000 R09: 0000000000000000
[  130.083785][ T1072] R10: ffffc90001e77198 R11: ffffffffb8d8d1e0 R12: 1ffff920003cee14
[  130.084256][ T1072] R13: 00000000000005dc R14: ffffc90001e77198 R15: ffff8880109aaf48
[  130.084709][ T1072] FS:  00007f757494f800(0000) GS:ffff8880b2719000(0000) knlGS:0000000000000000
[  130.085244][ T1072] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  130.085658][ T1072] CR2: 000000000043d940 CR3: 000000001156f006 CR4: 0000000000772ef0
[  130.086115][ T1072] PKRU: 55555554
[  130.086498][ T1072] Call Trace:
[  130.086724][ T1072]  <TASK>
[ 130.086882][ T1072] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 130.087190][ T1072] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 130.087651][ T1072] netif_set_mtu (net/core/dev.c:9652) 
[ 130.087952][ T1072] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 130.088322][ T1072] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 130.088554][ T1072] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 130.088860][ T1072] br_add_if (net/bridge/br_if.c:697) 
[ 130.089127][ T1072] do_set_master (net/core/rtnetlink.c:2948) 
[ 130.089464][ T1072] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 130.089773][ T1072] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 130.090102][ T1072] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 130.090417][ T1072] ? __dev_get_by_name (net/core/dev.c:865) 
[ 130.090726][ T1072] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 130.091028][ T1072] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 130.091354][ T1072] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 130.091668][ T1072] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 130.091975][ T1072] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 130.092295][ T1072] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 130.092605][ T1072] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 130.092916][ T1072] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 130.093218][ T1072] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 130.093541][ T1072] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 130.093859][ T1072] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 130.094163][ T1072] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 130.094479][ T1072] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 130.094788][ T1072] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 130.095090][ T1072] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 130.095403][ T1072] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 130.095720][ T1072] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 130.096031][ T1072] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 130.096344][ T1072] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 130.096650][ T1072] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 130.096952][ T1072] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 130.097278][ T1072] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 130.097587][ T1072] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 130.097893][ T1072] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 130.098211][ T1072] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 130.098525][ T1072] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 130.098826][ T1072] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 130.099216][ T1072] ___sys_sendmsg (net/socket.c:2670) 
[ 130.099543][ T1072] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 130.099849][ T1072] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 130.100156][ T1072] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 130.100468][ T1072] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 130.100777][ T1072] ? __handle_mm_fault (mm/memory.c:6212) 
[ 130.101076][ T1072] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 130.101391][ T1072] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 130.101719][ T1072] __sys_sendmsg (net/socket.c:2700) 
[ 130.102023][ T1072] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 130.102340][ T1072] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 130.102650][ T1072] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 130.102953][ T1072] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 130.103275][ T1072] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 130.103589][ T1072] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  130.103961][ T1072] RIP: 0033:0x7f7574b1c1e7
[ 130.104280][ T1072] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  130.105385][ T1072] RSP: 002b:00007ffd63bebad8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  130.105847][ T1072] RAX: ffffffffffffffda RBX: 00007ffd63bec210 RCX: 00007f7574b1c1e7
[  130.106307][ T1072] RDX: 0000000000000000 RSI: 00007ffd63bebb40 RDI: 0000000000000005
[  130.106766][ T1072] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  130.107219][ T1072] R10: 00007f7574baaac0 R11: 0000000000000246 R12: 00007ffd63bec248
[  130.107684][ T1072] R13: 00000000686e1d8d R14: 0000000000499600 R15: 00007ffd63bebc30
| [  132.247743][ T1089] ------------[ cut here ]------------
| [ 132.248172][ T1089] WARNING: CPU: 1 PID: 1089 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  132.248890][ T1089] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  132.250309][ T1089] Tainted: [W]=WARN
[  132.250607][ T1089] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 132.251089][ 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) 
[ 132.251417][ T1089] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  132.252537][ T1089] RSP: 0018:ffffc90001f56ef0 EFLAGS: 00010246
[  132.252919][ T1089] RAX: 0000000000000000 RBX: ffff88800dbaa000 RCX: 0000000000000001
[  132.253385][ T1089] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[  132.253840][ T1089] RBP: ffffc90001f56fd8 R08: 0000000000000000 R09: 0000000000000000
[  132.254302][ T1089] R10: ffffc90001f57008 R11: ffffffffb8d8d1e0 R12: 1ffff920003eade2
[  132.254749][ T1089] R13: 00000000000005dc R14: ffffc90001f57008 R15: ffff88800dbaaf48
[  132.255207][ T1089] FS:  00007f6b8cad6800(0000) GS:ffff8880b2619000(0000) knlGS:0000000000000000
[  132.255749][ T1089] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  132.256139][ T1089] CR2: 00000000004e6888 CR3: 0000000006302005 CR4: 0000000000772ef0
[  132.256605][ T1089] PKRU: 55555554
[  132.256833][ T1089] Call Trace:
[  132.257056][ T1089]  <TASK>
[ 132.257260][ T1089] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 132.257563][ T1089] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 132.257881][ T1089] netif_set_mtu (net/core/dev.c:9652) 
[ 132.258189][ T1089] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 132.258512][ T1089] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 132.258738][ T1089] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 132.259040][ T1089] br_add_if (net/bridge/br_if.c:697) 
[ 132.259308][ T1089] do_set_master (net/core/rtnetlink.c:2948) 
[ 132.259614][ T1089] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 132.259914][ T1089] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 132.260232][ T1089] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 132.260633][ T1089] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 132.260934][ T1089] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 132.261241][ T1089] ? __kernel_text_address (kernel/extable.c:79) 
[ 132.261557][ T1089] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 132.261857][ T1089] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 132.262165][ T1089] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 132.262560][ T1089] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 132.262860][ T1089] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 132.263166][ T1089] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 132.263567][ T1089] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 132.263887][ T1089] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 132.264184][ T1089] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 132.264524][ T1089] ? __create_object (mm/kmemleak.c:771) 
[ 132.264832][ T1089] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 132.265133][ T1089] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 132.265441][ T1089] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 132.265805][ T1089] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 132.266108][ T1089] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 132.266424][ T1089] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 132.266722][ T1089] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 132.267025][ T1089] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 132.267342][ T1089] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 132.267640][ T1089] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 132.267939][ T1089] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 132.268242][ T1089] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 132.268566][ T1089] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 132.268885][ T1089] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 132.269184][ T1089] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 132.269518][ T1089] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 132.269819][ T1089] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 132.270122][ T1089] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 132.270425][ 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) 
[ 132.270724][ T1089] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 132.271024][ T1089] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 132.271330][ T1089] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 132.271636][ T1089] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 132.271935][ T1089] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 132.272231][ T1089] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 132.272555][ T1089] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 132.272859][ T1089] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 132.273154][ T1089] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 132.273545][ T1089] ___sys_sendmsg (net/socket.c:2670) 
[ 132.273843][ T1089] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 132.274136][ T1089] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 132.274730][ T1089] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 132.275031][ T1089] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 132.275336][ T1089] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 132.275636][ T1089] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 132.276141][ T1089] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 132.276462][ T1089] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 132.276768][ T1089] __sys_sendmsg (net/socket.c:2700) 
[ 132.277061][ T1089] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 132.277647][ T1089] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 132.277954][ T1089] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 132.278260][ T1089] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 132.278557][ T1089] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  132.279133][ T1089] RIP: 0033:0x7f6b8cca31e7
[ 132.279479][ 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)
[  132.280775][ T1089] RSP: 002b:00007ffe4c6fa6d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  132.281232][ T1089] RAX: ffffffffffffffda RBX: 00007ffe4c6fae10 RCX: 00007f6b8cca31e7
[  132.281913][ T1089] RDX: 0000000000000000 RSI: 00007ffe4c6fa740 RDI: 0000000000000005
[  132.282364][ T1089] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  132.282806][ T1089] R10: 000000000cc92910 R11: 0000000000000246 R12: 0000000000000005
[  132.283471][ T1089] R13: 00000000686e1d8f R14: 0000000000499600 R15: 0000000000000000
| [  132.660654][ T1092] ------------[ cut here ]------------
| [ 132.661008][ T1092] WARNING: CPU: 2 PID: 1092 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  132.661665][ T1092] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  132.662814][ T1092] Tainted: [W]=WARN
[  132.663060][ T1092] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 132.663519][ T1092] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 132.663865][ T1092] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  132.665480][ T1092] RSP: 0018:ffffc90001f77080 EFLAGS: 00010246
[  132.665884][ T1092] RAX: 0000000000000000 RBX: ffff88800dbaa000 RCX: 0000000000000001
[  132.666369][ T1092] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[  132.666856][ T1092] RBP: ffffc90001f77168 R08: 0000000000000000 R09: 0000000000000000
[  132.667349][ T1092] R10: ffffc90001f77198 R11: ffffffffb8d8d1e0 R12: 1ffff920003eee14
[  132.667842][ T1092] R13: 00000000000005dc R14: ffffc90001f77198 R15: ffff88800dbaaf48
[  132.668355][ T1092] FS:  00007fac45e03800(0000) GS:ffff8880b2699000(0000) knlGS:0000000000000000
[  132.668911][ T1092] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  132.669330][ T1092] CR2: 000000000043d940 CR3: 0000000006302002 CR4: 0000000000772ef0
[  132.669848][ T1092] PKRU: 55555554
[  132.670114][ T1092] Call Trace:
[  132.670385][ T1092]  <TASK>
[ 132.670570][ T1092] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 132.670922][ T1092] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 132.671292][ T1092] netif_set_mtu (net/core/dev.c:9652) 
[ 132.671618][ T1092] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 132.671967][ T1092] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 132.672213][ T1092] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 132.672566][ T1092] br_add_if (net/bridge/br_if.c:697) 
[ 132.672823][ T1092] do_set_master (net/core/rtnetlink.c:2948) 
[ 132.673169][ T1092] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 132.673517][ T1092] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 132.673855][ T1092] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 132.674186][ T1092] ? __dev_get_by_name (net/core/dev.c:865) 
[ 132.674518][ T1092] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 132.674835][ T1092] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 132.675153][ T1092] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 132.675487][ T1092] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 132.675811][ T1092] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 132.676148][ T1092] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 132.676486][ T1092] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 132.676841][ T1092] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 132.677158][ T1092] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 132.677498][ T1092] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 132.677813][ T1092] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 132.678161][ T1092] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 132.678499][ T1092] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 132.678842][ T1092] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 132.679175][ T1092] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 132.679538][ T1092] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 132.679881][ T1092] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 132.680213][ T1092] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 132.680559][ T1092] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 132.680900][ T1092] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 132.681220][ T1092] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 132.681563][ T1092] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 132.681891][ T1092] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 132.682236][ T1092] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 132.682577][ T1092] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 132.682908][ T1092] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 132.683228][ T1092] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 132.683649][ T1092] ___sys_sendmsg (net/socket.c:2670) 
[ 132.684003][ T1092] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 132.684354][ T1092] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 132.684811][ T1092] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 132.685146][ T1092] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 132.685491][ T1092] ? __handle_mm_fault (mm/memory.c:6212) 
[ 132.685810][ T1092] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 132.686132][ T1092] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 132.686501][ T1092] __sys_sendmsg (net/socket.c:2700) 
[ 132.686842][ T1092] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 132.687175][ T1092] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 132.687532][ T1092] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 132.687866][ T1092] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 132.688204][ T1092] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 132.688541][ T1092] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  132.688946][ T1092] RIP: 0033:0x7fac45fd01e7
[ 132.689283][ T1092] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  132.690452][ T1092] RSP: 002b:00007ffe34eba818 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  132.690946][ T1092] RAX: ffffffffffffffda RBX: 00007ffe34ebaf50 RCX: 00007fac45fd01e7
[  132.691424][ T1092] RDX: 0000000000000000 RSI: 00007ffe34eba880 RDI: 0000000000000005
[  132.691893][ T1092] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  132.692392][ T1092] R10: 00007fac4605eac0 R11: 0000000000000246 R12: 00007ffe34ebaf88
[  132.692965][ T1092] R13: 00000000686e1d90 R14: 0000000000499600 R15: 00007ffe34eba970
| [  144.253960][   T69] ------------[ cut here ]------------
| [ 144.254278][ 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) 
| [  144.254787][   T69] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  144.255912][   T69] Tainted: [W]=WARN
[  144.256136][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  144.256512][   T69] Workqueue: netns cleanup_net
[ 144.256820][ 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) 
[ 144.257125][ T69] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  144.258200][   T69] RSP: 0018:ffffc900004a75b0 EFLAGS: 00010246
[  144.258578][   T69] RAX: 0000000000000000 RBX: ffff8880109aa000 RCX: 0000000000000001
[  144.259015][   T69] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[  144.259496][   T69] RBP: ffffc900004a7698 R08: 0000000000000000 R09: 0000000000000000
[  144.259933][   T69] R10: ffffc900004a76c8 R11: ffffffffb8d8d1e0 R12: 1ffff92000094eba
[  144.260374][   T69] R13: 00000000000005dc R14: ffffc900004a76c8 R15: ffff8880109aaf48
[  144.260811][   T69] FS:  0000000000000000(0000) GS:ffff8880b2719000(0000) knlGS:0000000000000000
[  144.261334][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  144.261714][   T69] CR2: 00007f9bc675f730 CR3: 000000001d34a003 CR4: 0000000000772ef0
[  144.262163][   T69] PKRU: 55555554
[  144.262391][   T69] Call Trace:
[  144.262615][   T69]  <TASK>
[ 144.262768][ 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) 
[ 144.263136][ T69] ? br_del_if (net/bridge/br_if.c:742) 
[ 144.263366][ T69] ? br_device_event (net/bridge/br.c:141) 
[ 144.263658][ T69] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 144.263956][ T69] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 144.264256][ T69] ? cleanup_net (net/core/net_namespace.c:684) 
[ 144.264547][ T69] ? process_one_work (kernel/workqueue.c:3238) 
[ 144.264846][ T69] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 144.265132][ T69] ? kthread (kernel/kthread.c:464) 
[ 144.265357][ T69] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 144.265654][ T69] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 144.265946][ T69] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 144.266257][ T69] netif_set_mtu (net/core/dev.c:9652) 
[ 144.266548][ T69] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 144.266868][ T69] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 144.267091][ T69] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 144.267396][ T69] br_del_if (net/bridge/br_if.c:743) 
[ 144.267620][ T69] br_device_event (net/bridge/br.c:141) 
[ 144.267911][ T69] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 144.268207][ T69] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 144.268513][ T69] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 144.268882][ 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) 
[ 144.269177][ T69] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 144.269562][ T69] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 144.269921][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 144.270286][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 144.270653][ T69] default_device_exit_batch (net/core/dev.c:12673) 
[ 144.270944][ T69] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 144.271324][ T69] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 144.271618][ T69] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 144.271904][ T69] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 144.272201][ T69] cleanup_net (net/core/net_namespace.c:684) 
[ 144.272494][ T69] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 144.272785][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 144.273081][ T69] process_one_work (kernel/workqueue.c:3238) 
[ 144.273389][ T69] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 144.273692][ T69] ? assign_work (kernel/workqueue.c:1200) 
[ 144.273985][ T69] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 144.274295][ T69] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 144.274587][ T69] kthread (kernel/kthread.c:464) 
[ 144.274807][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 144.275371][ T69] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 144.275659][ T69] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 144.275962][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 144.276463][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 144.276754][ T69] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 144.277042][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 144.277544][ T69] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  144.685874][   T69] ------------[ cut here ]------------
| [ 144.686206][ 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) 
| [  144.686773][   T69] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  144.687979][   T69] Tainted: [W]=WARN
[  144.688218][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  144.688664][   T69] Workqueue: netns cleanup_net
[ 144.688987][ 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) 
[ 144.689344][ T69] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  144.690444][   T69] RSP: 0018:ffffc900004a75b0 EFLAGS: 00010246
[  144.690831][   T69] RAX: 0000000000000000 RBX: ffff88800dbaa000 RCX: 0000000000000001
[  144.691306][   T69] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[  144.691828][   T69] RBP: ffffc900004a7698 R08: 0000000000000000 R09: 0000000000000000
[  144.692311][   T69] R10: ffffc900004a76c8 R11: ffffffffb8d8d1e0 R12: 1ffff92000094eba
[  144.692835][   T69] R13: 00000000000005dc R14: ffffc900004a76c8 R15: ffff88800dbaaf48
[  144.693313][   T69] FS:  0000000000000000(0000) GS:ffff8880b2699000(0000) knlGS:0000000000000000
[  144.693903][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  144.694313][   T69] CR2: 00007f2c3b648000 CR3: 000000001d34a005 CR4: 0000000000772ef0
[  144.694775][   T69] PKRU: 55555554
[  144.695014][   T69] Call Trace:
[  144.695264][   T69]  <TASK>
[ 144.695440][ 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) 
[ 144.695842][ T69] ? br_del_if (net/bridge/br_if.c:742) 
[ 144.696149][ T69] ? br_device_event (net/bridge/br.c:141) 
[ 144.696534][ T69] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 144.696853][ T69] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 144.697380][ T69] ? cleanup_net (net/core/net_namespace.c:684) 
[ 144.697896][ T69] ? process_one_work (kernel/workqueue.c:3238) 
[ 144.698421][ T69] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 144.698934][ T69] ? kthread (kernel/kthread.c:464) 
[ 144.699357][ T69] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 144.699878][ T69] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 144.700426][ T69] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 144.701002][ T69] netif_set_mtu (net/core/dev.c:9652) 
[ 144.701544][ T69] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 144.702129][ T69] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 144.702554][ T69] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 144.703081][ T69] br_del_if (net/bridge/br_if.c:743) 
[ 144.703511][ T69] br_device_event (net/bridge/br.c:141) 
[ 144.704026][ T69] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 144.704512][ T69] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 144.704886][ T69] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 144.705311][ 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) 
[ 144.705840][ T69] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 144.706501][ T69] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 144.706970][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 144.707610][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 144.708301][ T69] default_device_exit_batch (net/core/dev.c:12673) 
[ 144.708817][ T69] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 144.709522][ T69] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 144.710059][ T69] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 144.710610][ T69] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 144.711163][ T69] cleanup_net (net/core/net_namespace.c:684) 
[ 144.711731][ T69] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 144.712289][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 144.712818][ T69] process_one_work (kernel/workqueue.c:3238) 
[ 144.713386][ T69] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 144.713932][ T69] ? assign_work (kernel/workqueue.c:1200) 
[ 144.714488][ T69] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 144.715036][ T69] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 144.715592][ T69] kthread (kernel/kthread.c:464) 
[ 144.716013][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 144.716557][ T69] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 144.717085][ T69] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 144.717641][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 144.718175][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 144.718734][ T69] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 144.719268][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 144.719797][ T69] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  156.242899][ T1273] ------------[ cut here ]------------
| [ 156.243319][ T1273] WARNING: CPU: 1 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) 
| [  156.243912][ T1273] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  156.244987][ T1273] Tainted: [W]=WARN
[  156.245224][ T1273] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 156.245609][ 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) 
[ 156.245919][ T1273] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  156.246987][ T1273] RSP: 0018:ffffc90002686ef0 EFLAGS: 00010246
[  156.247376][ T1273] RAX: 0000000000000000 RBX: ffff88800b302000 RCX: 0000000000000001
[  156.247825][ T1273] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[  156.248278][ T1273] RBP: ffffc90002686fd8 R08: 0000000000000000 R09: 0000000000000000
[  156.248722][ T1273] R10: ffffc90002687008 R11: ffffffffb8d8d1e0 R12: 1ffff920004d0de2
[  156.249170][ T1273] R13: 00000000000005dc R14: ffffc90002687008 R15: ffff88800b302f48
[  156.249641][ T1273] FS:  00007f7bdf255800(0000) GS:ffff8880b2619000(0000) knlGS:0000000000000000
[  156.250164][ T1273] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  156.250548][ T1273] CR2: 00000000004e6888 CR3: 0000000005107004 CR4: 0000000000772ef0
[  156.250994][ T1273] PKRU: 55555554
[  156.251215][ T1273] Call Trace:
[  156.251446][ T1273]  <TASK>
[ 156.251610][ T1273] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 156.251930][ T1273] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 156.252269][ T1273] netif_set_mtu (net/core/dev.c:9652) 
[ 156.252583][ T1273] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 156.252897][ T1273] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 156.253126][ T1273] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 156.253442][ T1273] br_add_if (net/bridge/br_if.c:697) 
[ 156.253677][ T1273] do_set_master (net/core/rtnetlink.c:2948) 
[ 156.253974][ T1273] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 156.254289][ T1273] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 156.254587][ T1273] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 156.254965][ T1273] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 156.255283][ T1273] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 156.255578][ T1273] ? __kernel_text_address (kernel/extable.c:79) 
[ 156.255878][ T1273] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 156.256179][ T1273] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 156.256498][ T1273] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 156.256875][ T1273] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 156.257183][ T1273] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 156.257489][ T1273] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 156.257784][ T1273] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 156.258088][ T1273] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 156.258417][ T1273] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 156.258733][ T1273] ? __create_object (mm/kmemleak.c:771) 
[ 156.259050][ T1273] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 156.259392][ T1273] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 156.259713][ T1273] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 156.260104][ T1273] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 156.260450][ T1273] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 156.260771][ T1273] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 156.261083][ T1273] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 156.261419][ T1273] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 156.261736][ T1273] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 156.262047][ T1273] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 156.262374][ T1273] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 156.262688][ T1273] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 156.263027][ T1273] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 156.263361][ T1273] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 156.263685][ T1273] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 156.264000][ T1273] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 156.264329][ T1273] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 156.264656][ T1273] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 156.264966][ 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) 
[ 156.265299][ T1273] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 156.265618][ T1273] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 156.265935][ T1273] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 156.266271][ T1273] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 156.266592][ T1273] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 156.266913][ T1273] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 156.267243][ T1273] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 156.267579][ T1273] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 156.267891][ T1273] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 156.268314][ T1273] ___sys_sendmsg (net/socket.c:2670) 
[ 156.268625][ T1273] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 156.268937][ T1273] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 156.269350][ T1273] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 156.269671][ T1273] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 156.269989][ T1273] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 156.270325][ T1273] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 156.270639][ T1273] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 156.270956][ T1273] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 156.271308][ T1273] __sys_sendmsg (net/socket.c:2700) 
[ 156.271625][ T1273] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 156.272013][ T1273] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 156.272356][ T1273] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 156.272673][ T1273] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 156.272989][ T1273] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  156.273392][ T1273] RIP: 0033:0x7f7bdf4221e7
[ 156.273722][ 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)
[  156.274861][ T1273] RSP: 002b:00007ffe9602bc28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  156.275350][ T1273] RAX: ffffffffffffffda RBX: 00007ffe9602c360 RCX: 00007f7bdf4221e7
[  156.275825][ T1273] RDX: 0000000000000000 RSI: 00007ffe9602bc90 RDI: 0000000000000005
[  156.276307][ T1273] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  156.276780][ T1273] R10: 0000000003f6f910 R11: 0000000000000246 R12: 0000000000000005
[  156.277275][ T1273] R13: 00000000686e1da7 R14: 0000000000499600 R15: 0000000000000000
| [  156.654653][ T1276] ------------[ cut here ]------------
| [ 156.654984][ T1276] WARNING: CPU: 2 PID: 1276 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  156.656461][ T1276] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  156.657614][ T1276] Tainted: [W]=WARN
[  156.657864][ T1276] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 156.658271][ T1276] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 156.658601][ T1276] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  156.659731][ T1276] RSP: 0018:ffffc900026b7080 EFLAGS: 00010246
[  156.660132][ T1276] RAX: 0000000000000000 RBX: ffff88800b302000 RCX: 0000000000000001
[  156.660614][ T1276] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[  156.661082][ T1276] RBP: ffffc900026b7168 R08: 0000000000000000 R09: 0000000000000000
[  156.661559][ T1276] R10: ffffc900026b7198 R11: ffffffffb8d8d1e0 R12: 1ffff920004d6e14
[  156.662035][ T1276] R13: 00000000000005dc R14: ffffc900026b7198 R15: ffff88800b302f48
[  156.662514][ T1276] FS:  00007feb13e7e800(0000) GS:ffff8880b2699000(0000) knlGS:0000000000000000
[  156.663064][ T1276] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  156.663481][ T1276] CR2: 000000000043d940 CR3: 000000000a2fd003 CR4: 0000000000772ef0
[  156.663960][ T1276] PKRU: 55555554
[  156.664204][ T1276] Call Trace:
[  156.664456][ T1276]  <TASK>
[ 156.664628][ T1276] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 156.664949][ T1276] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 156.665288][ T1276] netif_set_mtu (net/core/dev.c:9652) 
[ 156.665608][ T1276] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 156.665938][ T1276] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 156.666188][ T1276] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 156.666521][ T1276] br_add_if (net/bridge/br_if.c:697) 
[ 156.666774][ T1276] do_set_master (net/core/rtnetlink.c:2948) 
[ 156.667123][ T1276] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 156.667461][ T1276] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 156.667790][ T1276] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 156.668102][ T1276] ? __dev_get_by_name (net/core/dev.c:865) 
[ 156.668430][ T1276] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 156.668748][ T1276] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 156.669069][ T1276] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 156.669402][ T1276] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 156.669726][ T1276] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 156.670055][ T1276] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 156.670390][ T1276] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 156.670718][ T1276] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 156.671037][ T1276] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 156.671376][ T1276] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 156.671697][ T1276] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 156.672014][ T1276] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 156.672353][ T1276] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 156.672675][ T1276] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 156.672995][ T1276] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 156.673326][ T1276] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 156.673660][ T1276] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 156.673974][ T1276] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 156.674304][ T1276] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 156.674624][ T1276] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 156.674939][ T1276] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 156.675279][ T1276] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 156.675609][ T1276] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 156.675933][ T1276] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 156.676272][ T1276] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 156.676598][ T1276] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 156.676912][ T1276] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 156.677327][ T1276] ___sys_sendmsg (net/socket.c:2670) 
[ 156.677649][ T1276] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 156.677967][ T1276] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 156.678305][ T1276] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 156.678619][ T1276] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 156.678935][ T1276] ? __handle_mm_fault (mm/memory.c:6212) 
[ 156.679278][ T1276] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 156.679601][ T1276] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 156.679939][ T1276] __sys_sendmsg (net/socket.c:2700) 
[ 156.680271][ T1276] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 156.680586][ T1276] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 156.680907][ T1276] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 156.681226][ T1276] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 156.681558][ T1276] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 156.681879][ T1276] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  156.682276][ T1276] RIP: 0033:0x7feb1404b1e7
[ 156.682604][ T1276] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  156.683729][ T1276] RSP: 002b:00007ffc3d5a3ca8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  156.684204][ T1276] RAX: ffffffffffffffda RBX: 00007ffc3d5a43e0 RCX: 00007feb1404b1e7
[  156.684685][ T1276] RDX: 0000000000000000 RSI: 00007ffc3d5a3d10 RDI: 0000000000000005
[  156.685154][ T1276] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  156.685632][ T1276] R10: 00007feb140d9ac0 R11: 0000000000000246 R12: 00007ffc3d5a4418
[  156.686102][ T1276] R13: 00000000686e1da8 R14: 0000000000499600 R15: 00007ffc3d5a3e00
| [  158.732610][ T1293] ------------[ cut here ]------------
| [ 158.732959][ T1293] WARNING: CPU: 1 PID: 1293 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  158.734622][ T1293] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  158.735700][ T1293] Tainted: [W]=WARN
[  158.735927][ T1293] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 158.736325][ T1293] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 158.736634][ T1293] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  158.737706][ T1293] RSP: 0018:ffffc90002776ef0 EFLAGS: 00010246
[  158.738084][ T1293] RAX: 0000000000000000 RBX: ffff888011342000 RCX: 0000000000000001
[  158.738544][ T1293] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[  158.738995][ T1293] RBP: ffffc90002776fd8 R08: 0000000000000000 R09: 0000000000000000
[  158.739478][ T1293] R10: ffffc90002777008 R11: ffffffffb8d8d1e0 R12: 1ffff920004eede2
[  158.739925][ T1293] R13: 00000000000005dc R14: ffffc90002777008 R15: ffff888011342f48
[  158.740392][ T1293] FS:  00007f4f386e8800(0000) GS:ffff8880b2619000(0000) knlGS:0000000000000000
[  158.740916][ T1293] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  158.741298][ T1293] CR2: 00000000004e6888 CR3: 000000000ef9a001 CR4: 0000000000772ef0
[  158.741746][ T1293] PKRU: 55555554
[  158.741971][ T1293] Call Trace:
[  158.742193][ T1293]  <TASK>
[ 158.742363][ T1293] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 158.742661][ T1293] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 158.742974][ T1293] netif_set_mtu (net/core/dev.c:9652) 
[ 158.743281][ T1293] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 158.743593][ T1293] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 158.743826][ T1293] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 158.744129][ T1293] br_add_if (net/bridge/br_if.c:697) 
[ 158.744387][ T1293] do_set_master (net/core/rtnetlink.c:2948) 
[ 158.744690][ T1293] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 158.744992][ T1293] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 158.745302][ T1293] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 158.745680][ T1293] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 158.745974][ T1293] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 158.746281][ T1293] ? __kernel_text_address (kernel/extable.c:79) 
[ 158.746579][ T1293] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 158.746889][ T1293] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 158.747187][ T1293] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 158.747570][ T1293] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 158.747869][ T1293] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 158.748173][ T1293] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 158.748491][ T1293] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 158.748794][ T1293] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 158.749099][ T1293] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 158.749415][ T1293] ? __create_object (mm/kmemleak.c:771) 
[ 158.749715][ T1293] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 158.750012][ T1293] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 158.750329][ T1293] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 158.750699][ T1293] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 158.751002][ T1293] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 158.751317][ T1293] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 158.751622][ T1293] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 158.751921][ T1293] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 158.752216][ T1293] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 158.752533][ T1293] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 158.752834][ T1293] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 158.753132][ T1293] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 158.753440][ T1293] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 158.753744][ T1293] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 158.754043][ T1293] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 158.754352][ T1293] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 158.754647][ T1293] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 158.754952][ T1293] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 158.755478][ T1293] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 158.755774][ T1293] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 158.756074][ T1293] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 158.756387][ T1293] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 158.756904][ T1293] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 158.757200][ T1293] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 158.757502][ T1293] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 158.757803][ T1293] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 158.758324][ T1293] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 158.758617][ T1293] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 158.759001][ T1293] ___sys_sendmsg (net/socket.c:2670) 
[ 158.759301][ T1293] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 158.759958][ T1293] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 158.760352][ T1293] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 158.760650][ T1293] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 158.760945][ T1293] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 158.761467][ T1293] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 158.761769][ T1293] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 158.762088][ T1293] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 158.762403][ T1293] __sys_sendmsg (net/socket.c:2700) 
[ 158.762911][ T1293] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 158.763285][ T1293] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 158.763594][ T1293] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 158.763890][ T1293] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 158.764427][ T1293] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  158.764790][ T1293] RIP: 0033:0x7f4f388b51e7
[ 158.765098][ T1293] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  158.766388][ T1293] RSP: 002b:00007ffcc8071988 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  158.767063][ T1293] RAX: ffffffffffffffda RBX: 00007ffcc80720c0 RCX: 00007f4f388b51e7
[  158.767517][ T1293] RDX: 0000000000000000 RSI: 00007ffcc80719f0 RDI: 0000000000000005
[  158.767959][ T1293] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  158.768637][ T1293] R10: 0000000004e78910 R11: 0000000000000246 R12: 0000000000000005
[  158.769085][ T1293] R13: 00000000686e1daa R14: 0000000000499600 R15: 0000000000000000
| [  159.147313][ T1296] ------------[ cut here ]------------
| [ 159.147635][ T1296] WARNING: CPU: 3 PID: 1296 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  159.148237][ T1296] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  159.149938][ T1296] Tainted: [W]=WARN
[  159.150174][ T1296] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 159.150579][ T1296] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 159.150902][ T1296] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  159.152006][ T1296] RSP: 0018:ffffc90002177080 EFLAGS: 00010246
[  159.152422][ T1296] RAX: 0000000000000000 RBX: ffff888011342000 RCX: 0000000000000001
[  159.152886][ T1296] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[  159.153353][ T1296] RBP: ffffc90002177168 R08: 0000000000000000 R09: 0000000000000000
[  159.153807][ T1296] R10: ffffc90002177198 R11: ffffffffb96ceab8 R12: 1ffff9200042ee14
[  159.154273][ T1296] R13: 00000000000005dc R14: ffffc90002177198 R15: ffff888011342f48
[  159.154735][ T1296] FS:  00007feeca49f800(0000) GS:ffff8880b2719000(0000) knlGS:0000000000000000
[  159.155280][ T1296] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  159.155663][ T1296] CR2: 000000000043d940 CR3: 0000000002958006 CR4: 0000000000772ef0
[  159.156122][ T1296] PKRU: 55555554
[  159.156371][ T1296] Call Trace:
[  159.156611][ T1296]  <TASK>
[ 159.156769][ T1296] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 159.157079][ T1296] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 159.157401][ T1296] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 159.157781][ T1296] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 159.158087][ T1296] netif_set_mtu (net/core/dev.c:9652) 
[ 159.158398][ T1296] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 159.158704][ T1296] ? irqentry_exit (kernel/entry/common.c:311) 
[ 159.159017][ T1296] ? br_mtu_auto_adjust (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 net/bridge/br_private.h:758 net/bridge/br_if.c:518) 
[ 159.159342][ T1296] ? dev_set_mtu (./include/net/netdev_lock.h:33 ./include/net/netdev_lock.h:41 net/core/dev_api.c:247) 
[ 159.159647][ T1296] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 159.159877][ T1296] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 159.160182][ T1296] br_add_if (net/bridge/br_if.c:697) 
[ 159.160444][ T1296] do_set_master (net/core/rtnetlink.c:2948) 
[ 159.160785][ T1296] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 159.161098][ T1296] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 159.161412][ T1296] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 159.161715][ T1296] ? __dev_get_by_name (net/core/dev.c:865) 
[ 159.162020][ T1296] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 159.162358][ T1296] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 159.162684][ T1296] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 159.163000][ T1296] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 159.163326][ T1296] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 159.163641][ T1296] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 159.163965][ T1296] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 159.164311][ T1296] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 159.164621][ T1296] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 159.164930][ T1296] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 159.165262][ T1296] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 159.165584][ T1296] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 159.165903][ T1296] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 159.166229][ T1296] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 159.166553][ T1296] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 159.166880][ T1296] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 159.167207][ T1296] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 159.167520][ T1296] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 159.167837][ T1296] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 159.168148][ T1296] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 159.168474][ T1296] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 159.168795][ T1296] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 159.169100][ T1296] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 159.169426][ T1296] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 159.169737][ T1296] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 159.170043][ T1296] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 159.170372][ T1296] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 159.170774][ T1296] ___sys_sendmsg (net/socket.c:2670) 
[ 159.171090][ T1296] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 159.171414][ T1296] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 159.171823][ T1296] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 159.172375][ T1296] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 159.172912][ T1296] ? __handle_mm_fault (mm/memory.c:6212) 
[ 159.173470][ T1296] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 159.173781][ T1296] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 159.174113][ T1296] __sys_sendmsg (net/socket.c:2700) 
[ 159.174432][ T1296] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 159.174737][ T1296] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 159.175050][ T1296] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 159.175371][ T1296] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 159.175689][ T1296] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 159.175994][ T1296] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  159.176393][ T1296] RIP: 0033:0x7feeca66c1e7
[ 159.176710][ T1296] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  159.177806][ T1296] RSP: 002b:00007fff2e192de8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  159.178277][ T1296] RAX: ffffffffffffffda RBX: 00007fff2e193520 RCX: 00007feeca66c1e7
[  159.178734][ T1296] RDX: 0000000000000000 RSI: 00007fff2e192e50 RDI: 0000000000000005
[  159.179186][ T1296] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  159.179673][ T1296] R10: 00007feeca6faac0 R11: 0000000000000246 R12: 00007fff2e193558
[  159.180159][ T1296] R13: 00000000686e1daa R14: 0000000000499600 R15: 00007fff2e192f40
| [  176.126549][   T69] ------------[ cut here ]------------
| [ 176.126857][ 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) 
| [  176.128162][   T69] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  176.129311][   T69] Tainted: [W]=WARN
[  176.129604][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  176.129971][   T69] Workqueue: netns cleanup_net
[ 176.130293][ 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) 
[ 176.130606][ T69] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  176.131666][   T69] RSP: 0018:ffffc900004a75b0 EFLAGS: 00010246
[  176.132037][   T69] RAX: 0000000000000000 RBX: ffff88800b302000 RCX: 0000000000000001
[  176.132493][   T69] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[  176.132934][   T69] RBP: ffffc900004a7698 R08: 0000000000000000 R09: 0000000000000000
[  176.133523][   T69] R10: ffffc900004a76c8 R11: ffffffffb8d8d1e0 R12: 1ffff92000094eba
[  176.133961][   T69] R13: 00000000000005dc R14: ffffc900004a76c8 R15: ffff88800b302f48
[  176.134709][   T69] FS:  0000000000000000(0000) GS:ffff8880b2719000(0000) knlGS:0000000000000000
[  176.135225][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  176.135814][   T69] CR2: 00007fc8a7a8e050 CR3: 000000001d34a006 CR4: 0000000000772ef0
[  176.136267][   T69] PKRU: 55555554
[  176.136489][   T69] Call Trace:
[  176.136708][   T69]  <TASK>
[ 176.136865][ 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) 
[ 176.137236][ T69] ? br_del_if (net/bridge/br_if.c:742) 
[ 176.137472][ T69] ? br_device_event (net/bridge/br.c:141) 
[ 176.137764][ T69] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 176.138063][ T69] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 176.138361][ T69] ? cleanup_net (net/core/net_namespace.c:684) 
[ 176.138659][ T69] ? process_one_work (kernel/workqueue.c:3238) 
[ 176.138953][ T69] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 176.139244][ T69] ? kthread (kernel/kthread.c:464) 
[ 176.139491][ T69] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 176.139786][ T69] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 176.140084][ T69] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 176.140398][ T69] netif_set_mtu (net/core/dev.c:9652) 
[ 176.140697][ T69] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 176.141008][ T69] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 176.141237][ T69] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 176.141546][ T69] br_del_if (net/bridge/br_if.c:743) 
[ 176.141774][ T69] br_device_event (net/bridge/br.c:141) 
[ 176.142066][ T69] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 176.142389][ T69] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 176.142689][ T69] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 176.143059][ 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) 
[ 176.143361][ T69] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 176.143728][ T69] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 176.144089][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 176.144471][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 176.144843][ T69] default_device_exit_batch (net/core/dev.c:12673) 
[ 176.145141][ T69] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 176.145524][ T69] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 176.145824][ T69] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 176.146113][ T69] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 176.146422][ T69] cleanup_net (net/core/net_namespace.c:684) 
[ 176.146720][ T69] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 176.147016][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 176.147323][ T69] process_one_work (kernel/workqueue.c:3238) 
[ 176.147621][ T69] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 176.147918][ T69] ? assign_work (kernel/workqueue.c:1200) 
[ 176.148212][ T69] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 176.148520][ T69] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 176.148813][ T69] kthread (kernel/kthread.c:464) 
[ 176.149040][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 176.149332][ T69] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 176.149638][ T69] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 176.149932][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 176.150222][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 176.150520][ T69] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 176.150812][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 176.151105][ T69] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  176.563887][   T69] ------------[ cut here ]------------
| [ 176.564240][ 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) 
| [  176.564856][   T69] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  176.566135][   T69] Tainted: [W]=WARN
[  176.566397][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  176.566811][   T69] Workqueue: netns cleanup_net
[ 176.567160][ 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) 
[ 176.567516][ T69] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  176.568693][   T69] RSP: 0018:ffffc900004a75b0 EFLAGS: 00010246
[  176.569106][   T69] RAX: 0000000000000000 RBX: ffff888011342000 RCX: 0000000000000001
[  176.569633][   T69] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[  176.570125][   T69] RBP: ffffc900004a7698 R08: 0000000000000000 R09: 0000000000000000
[  176.570630][   T69] R10: ffffc900004a76c8 R11: ffffffffb8d8d1e0 R12: 1ffff92000094eba
[  176.571128][   T69] R13: 00000000000005dc R14: ffffc900004a76c8 R15: ffff888011342f48
[  176.571635][   T69] FS:  0000000000000000(0000) GS:ffff8880b2719000(0000) knlGS:0000000000000000
[  176.572213][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  176.572639][   T69] CR2: 00007fdf45052000 CR3: 000000001d34a001 CR4: 0000000000772ef0
[  176.573137][   T69] PKRU: 55555554
[  176.573395][   T69] Call Trace:
[  176.573644][   T69]  <TASK>
[ 176.573814][ 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) 
[ 176.574237][ T69] ? br_del_if (net/bridge/br_if.c:742) 
[ 176.574501][ T69] ? br_device_event (net/bridge/br.c:141) 
[ 176.574839][ T69] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 176.575172][ T69] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 176.575510][ T69] ? cleanup_net (net/core/net_namespace.c:684) 
[ 176.575850][ T69] ? process_one_work (kernel/workqueue.c:3238) 
[ 176.576176][ T69] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 176.576522][ T69] ? kthread (kernel/kthread.c:464) 
[ 176.576771][ T69] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 176.577103][ T69] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 176.577455][ T69] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 176.577801][ T69] netif_set_mtu (net/core/dev.c:9652) 
[ 176.578137][ T69] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 176.578494][ T69] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 176.578757][ T69] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 176.579098][ T69] br_del_if (net/bridge/br_if.c:743) 
[ 176.579356][ T69] br_device_event (net/bridge/br.c:141) 
[ 176.579708][ T69] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 176.580057][ T69] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 176.580414][ T69] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 176.580852][ 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) 
[ 176.581191][ T69] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 176.581619][ T69] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 176.582043][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 176.582475][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 176.582905][ T69] default_device_exit_batch (net/core/dev.c:12673) 
[ 176.583257][ T69] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 176.583691][ T69] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 176.584034][ T69] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 176.584375][ T69] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 176.584730][ T69] cleanup_net (net/core/net_namespace.c:684) 
[ 176.585066][ T69] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 176.585419][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 176.585757][ T69] process_one_work (kernel/workqueue.c:3238) 
[ 176.586124][ T69] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 176.586478][ T69] ? assign_work (kernel/workqueue.c:1200) 
[ 176.586815][ T69] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 176.587162][ T69] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 176.587505][ T69] kthread (kernel/kthread.c:464) 
[ 176.587762][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 176.588089][ T69] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 176.588438][ T69] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 176.588774][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 176.589109][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 176.589462][ T69] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 176.589796][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 176.590137][ T69] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  187.869473][ T1534] ------------[ cut here ]------------
| [ 187.869812][ T1534] WARNING: CPU: 2 PID: 1534 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) 
| [  187.870438][ T1534] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  187.871548][ T1534] Tainted: [W]=WARN
[  187.871792][ T1534] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 187.872180][ T1534] 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) 
[ 187.872515][ T1534] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  187.873599][ T1534] RSP: 0018:ffffc90002f06ef0 EFLAGS: 00010246
[  187.873994][ T1534] RAX: 0000000000000000 RBX: ffff888005a92000 RCX: 0000000000000001
[  187.874469][ T1534] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[  187.874926][ T1534] RBP: ffffc90002f06fd8 R08: 0000000000000000 R09: 0000000000000000
[  187.875394][ T1534] R10: ffffc90002f07008 R11: ffffffffb8d8d1e0 R12: 1ffff920005e0de2
[  187.875853][ T1534] R13: 00000000000005dc R14: ffffc90002f07008 R15: ffff888005a92f48
[  187.876321][ T1534] FS:  00007fbc26ff5800(0000) GS:ffff8880b2699000(0000) knlGS:0000000000000000
[  187.876863][ T1534] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  187.877256][ T1534] CR2: 00000000004e6888 CR3: 000000000edc7006 CR4: 0000000000772ef0
[  187.877718][ T1534] PKRU: 55555554
[  187.877955][ T1534] Call Trace:
[  187.878196][ T1534]  <TASK>
[ 187.878374][ T1534] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 187.878689][ T1534] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 187.879014][ T1534] netif_set_mtu (net/core/dev.c:9652) 
[ 187.879338][ T1534] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 187.879676][ T1534] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 187.879915][ T1534] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 187.880230][ T1534] br_add_if (net/bridge/br_if.c:697) 
[ 187.880517][ T1534] do_set_master (net/core/rtnetlink.c:2948) 
[ 187.880829][ T1534] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 187.881140][ T1534] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 187.881463][ T1534] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 187.881855][ T1534] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 187.882164][ T1534] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 187.882497][ T1534] ? __kernel_text_address (kernel/extable.c:79) 
[ 187.882817][ T1534] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 187.883127][ T1534] ? __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) 
[ 187.883452][ T1534] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 187.883834][ T1534] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 187.884146][ T1534] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 187.884464][ T1534] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 187.884774][ T1534] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 187.885089][ T1534] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 187.885410][ T1534] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 187.885716][ T1534] ? __create_object (mm/kmemleak.c:771) 
[ 187.886028][ T1534] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 187.886347][ T1534] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 187.886660][ T1534] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 187.887038][ T1534] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 187.887366][ T1534] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 187.887687][ T1534] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 187.887996][ T1534] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 187.888320][ T1534] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 187.888629][ T1534] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 187.888932][ T1534] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 187.889244][ T1534] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 187.889571][ T1534] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 187.889888][ T1534] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 187.890205][ T1534] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 187.890530][ T1534] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 187.890842][ T1534] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 187.891153][ T1534] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 187.891483][ T1534] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 187.891794][ T1534] ? 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) 
[ 187.892114][ T1534] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 187.892552][ T1534] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 187.893081][ T1534] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 187.893670][ T1534] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 187.894123][ T1534] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 187.894450][ T1534] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 187.894769][ T1534] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 187.895079][ T1534] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 187.895410][ T1534] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 187.895802][ T1534] ___sys_sendmsg (net/socket.c:2670) 
[ 187.896106][ T1534] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 187.896424][ T1534] ? __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) 
[ 187.896810][ T1534] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 187.897121][ T1534] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 187.897441][ T1534] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 187.897756][ T1534] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 187.898065][ T1534] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 187.898379][ T1534] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 187.898694][ T1534] __sys_sendmsg (net/socket.c:2700) 
[ 187.898997][ T1534] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 187.899610][ T1534] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 187.899928][ T1534] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 187.900255][ T1534] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 187.900779][ T1534] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  187.901155][ T1534] RIP: 0033:0x7fbc271c21e7
[ 187.901483][ T1534] 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)
[  187.902791][ T1534] RSP: 002b:00007ffca9849bd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  187.903259][ T1534] RAX: ffffffffffffffda RBX: 00007ffca984a310 RCX: 00007fbc271c21e7
[  187.903935][ T1534] RDX: 0000000000000000 RSI: 00007ffca9849c40 RDI: 0000000000000005
[  187.904403][ T1534] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  187.904859][ T1534] R10: 0000000010a23910 R11: 0000000000000246 R12: 0000000000000005
[  187.905553][ T1534] R13: 00000000686e1dc7 R14: 0000000000499600 R15: 0000000000000000
| [  188.296700][ T1537] ------------[ cut here ]------------
| [ 188.297124][ T1537] WARNING: CPU: 3 PID: 1537 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  188.298341][ T1537] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  188.300068][ T1537] Tainted: [W]=WARN
[  188.300488][ T1537] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 188.301123][ T1537] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 188.301697][ T1537] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  188.303580][ T1537] RSP: 0018:ffffc90002f27080 EFLAGS: 00010246
[  188.304167][ T1537] RAX: 0000000000000000 RBX: ffff888005a92000 RCX: 0000000000000001
[  188.304871][ T1537] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[  188.305580][ T1537] RBP: ffffc90002f27168 R08: 0000000000000000 R09: 0000000000000000
[  188.306500][ T1537] R10: ffffc90002f27198 R11: ffffffffb96ceab8 R12: 1ffff920005e4e14
[  188.307166][ T1537] R13: 00000000000005dc R14: ffffc90002f27198 R15: ffff888005a92f48
[  188.308140][ T1537] FS:  00007fc68bfa8800(0000) GS:ffff8880b2719000(0000) knlGS:0000000000000000
[  188.309046][ T1537] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  188.309665][ T1537] CR2: 000000000043d940 CR3: 000000000ab7c001 CR4: 0000000000772ef0
[  188.310355][ T1537] PKRU: 55555554
[  188.310702][ T1537] Call Trace:
[  188.311038][ T1537]  <TASK>
[ 188.311314][ T1537] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 188.311795][ T1537] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 188.312272][ T1537] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 188.312846][ T1537] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 188.313336][ T1537] netif_set_mtu (net/core/dev.c:9652) 
[ 188.313793][ T1537] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 188.314274][ T1537] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 188.314855][ T1537] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 188.315201][ T1537] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 188.315685][ T1537] br_add_if (net/bridge/br_if.c:697) 
[ 188.316038][ T1537] do_set_master (net/core/rtnetlink.c:2948) 
[ 188.316514][ T1537] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 188.316975][ T1537] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 188.317468][ T1537] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 188.317906][ T1537] ? __dev_get_by_name (net/core/dev.c:865) 
[ 188.318391][ T1537] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 188.318836][ T1537] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 188.319366][ T1537] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 188.319822][ T1537] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 188.320312][ T1537] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 188.320772][ T1537] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 188.321280][ T1537] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 188.321741][ T1537] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 188.322207][ T1537] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 188.322675][ T1537] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 188.323132][ T1537] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 188.323624][ T1537] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 188.324078][ T1537] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 188.324539][ T1537] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 188.324996][ T1537] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 188.325505][ T1537] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 188.325968][ T1537] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 188.326447][ T1537] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 188.326903][ T1537] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 188.327388][ T1537] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 188.327845][ T1537] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 188.328317][ T1537] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 188.328798][ T1537] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 188.329300][ T1537] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 188.329766][ T1537] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 188.330225][ T1537] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 188.330701][ T1537] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 188.331298][ T1537] ___sys_sendmsg (net/socket.c:2670) 
[ 188.331748][ T1537] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 188.332219][ T1537] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 188.332700][ T1537] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 188.333152][ T1537] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 188.333638][ T1537] ? __handle_mm_fault (mm/memory.c:6212) 
[ 188.334100][ T1537] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 188.334553][ T1537] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 188.335030][ T1537] __sys_sendmsg (net/socket.c:2700) 
[ 188.335529][ T1537] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 188.335967][ T1537] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 188.336452][ T1537] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 188.336910][ T1537] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 188.337400][ T1537] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 188.337863][ T1537] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  188.338433][ T1537] RIP: 0033:0x7fc68c1751e7
[ 188.338904][ T1537] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  188.340525][ T1537] RSP: 002b:00007ffe6024af68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  188.341222][ T1537] RAX: ffffffffffffffda RBX: 00007ffe6024b6a0 RCX: 00007fc68c1751e7
[  188.341921][ T1537] RDX: 0000000000000000 RSI: 00007ffe6024afd0 RDI: 0000000000000005
[  188.342607][ T1537] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  188.343293][ T1537] R10: 00007fc68c203ac0 R11: 0000000000000246 R12: 00007ffe6024b6d8
[  188.343983][ T1537] R13: 00000000686e1dc7 R14: 0000000000499600 R15: 00007ffe6024b0c0
| [  190.422643][ T1554] ------------[ cut here ]------------
| [ 190.422960][ T1554] WARNING: CPU: 1 PID: 1554 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  190.423564][ T1554] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  190.424648][ T1554] Tainted: [W]=WARN
[  190.424872][ T1554] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 190.425240][ T1554] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 190.425570][ T1554] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  190.427456][ T1554] RSP: 0018:ffffc90003006ef0 EFLAGS: 00010246
[  190.427839][ T1554] RAX: 0000000000000000 RBX: ffff88801164a000 RCX: 0000000000000001
[  190.428285][ T1554] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[  190.428727][ T1554] RBP: ffffc90003006fd8 R08: 0000000000000000 R09: 0000000000000000
[  190.429167][ T1554] R10: ffffc90003007008 R11: ffffffffb8d8d1e0 R12: 1ffff92000600de2
[  190.429639][ T1554] R13: 00000000000005dc R14: ffffc90003007008 R15: ffff88801164af48
[  190.430082][ T1554] FS:  00007f2b228d8800(0000) GS:ffff8880b2619000(0000) knlGS:0000000000000000
[  190.430611][ T1554] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  190.430986][ T1554] CR2: 00000000004e6888 CR3: 000000001005f001 CR4: 0000000000772ef0
[  190.431452][ T1554] PKRU: 55555554
[  190.431677][ T1554] Call Trace:
[  190.431896][ T1554]  <TASK>
[ 190.432049][ T1554] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 190.432351][ T1554] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 190.432660][ T1554] netif_set_mtu (net/core/dev.c:9652) 
[ 190.432955][ T1554] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 190.433284][ T1554] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 190.433520][ T1554] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 190.433818][ T1554] br_add_if (net/bridge/br_if.c:697) 
[ 190.434051][ T1554] do_set_master (net/core/rtnetlink.c:2948) 
[ 190.434352][ T1554] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 190.434652][ T1554] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 190.434949][ T1554] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 190.435333][ T1554] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 190.435637][ T1554] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 190.435927][ T1554] ? __kernel_text_address (kernel/extable.c:79) 
[ 190.436225][ T1554] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 190.436544][ T1554] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 190.436842][ T1554] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 190.437205][ T1554] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 190.437520][ T1554] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 190.437819][ T1554] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 190.438120][ T1554] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 190.438426][ T1554] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 190.438725][ T1554] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 190.439015][ T1554] ? __create_object (mm/kmemleak.c:771) 
[ 190.439319][ T1554] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 190.439636][ T1554] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 190.439933][ T1554] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 190.440312][ T1554] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 190.440617][ T1554] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 190.440915][ T1554] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 190.441211][ T1554] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 190.441534][ T1554] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 190.441833][ T1554] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 190.442126][ T1554] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 190.442431][ T1554] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 190.442732][ T1554] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 190.443027][ T1554] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 190.443336][ T1554] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 190.443637][ T1554] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 190.443933][ T1554] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 190.444230][ T1554] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 190.444547][ T1554] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 190.444847][ T1554] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 190.445142][ T1554] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 190.445457][ T1554] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 190.445762][ T1554] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 190.446062][ T1554] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 190.446367][ T1554] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 190.446662][ T1554] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 190.446970][ T1554] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 190.447287][ T1554] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 190.447580][ T1554] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 190.447960][ T1554] ___sys_sendmsg (net/socket.c:2670) 
[ 190.448260][ T1554] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 190.448552][ T1554] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 190.448921][ T1554] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 190.449223][ T1554] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 190.449546][ T1554] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 190.449852][ T1554] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 190.450146][ T1554] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 190.450447][ T1554] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 190.450752][ T1554] __sys_sendmsg (net/socket.c:2700) 
[ 190.451044][ T1554] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 190.451414][ T1554] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 190.451727][ T1554] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 190.452025][ T1554] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 190.452337][ T1554] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  190.452703][ T1554] RIP: 0033:0x7f2b22aa51e7
[ 190.453011][ T1554] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  190.454082][ T1554] RSP: 002b:00007ffdb3b8ea98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  190.454536][ T1554] RAX: ffffffffffffffda RBX: 00007ffdb3b8f1d0 RCX: 00007f2b22aa51e7
[  190.454973][ T1554] RDX: 0000000000000000 RSI: 00007ffdb3b8eb00 RDI: 0000000000000005
[  190.455642][ T1554] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  190.456090][ T1554] R10: 000000001760a910 R11: 0000000000000246 R12: 0000000000000005
[  190.456537][ T1554] R13: 00000000686e1dc9 R14: 0000000000499600 R15: 0000000000000000
| [  190.834383][ T1557] ------------[ cut here ]------------
| [ 190.834696][ T1557] WARNING: CPU: 1 PID: 1557 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  190.835316][ T1557] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  190.836427][ T1557] Tainted: [W]=WARN
[  190.836660][ T1557] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 190.837039][ T1557] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 190.837368][ T1557] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  190.838460][ T1557] RSP: 0018:ffffc90003017080 EFLAGS: 00010246
[  190.838846][ T1557] RAX: 0000000000000000 RBX: ffff88801164a000 RCX: 0000000000000001
[  190.839315][ T1557] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[  190.839802][ T1557] RBP: ffffc90003017168 R08: 0000000000000000 R09: 0000000000000000
[  190.840278][ T1557] R10: ffffc90003017198 R11: ffffffffb8d8d1e0 R12: 1ffff92000602e14
[  190.840733][ T1557] R13: 00000000000005dc R14: ffffc90003017198 R15: ffff88801164af48
[  190.841191][ T1557] FS:  00007f7e4fc55800(0000) GS:ffff8880b2619000(0000) knlGS:0000000000000000
[  190.841731][ T1557] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  190.842118][ T1557] CR2: 000000000043d940 CR3: 000000001005f005 CR4: 0000000000772ef0
[  190.842582][ T1557] PKRU: 55555554
[  190.842820][ T1557] Call Trace:
[  190.843049][ T1557]  <TASK>
[ 190.843206][ T1557] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 190.843524][ T1557] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 190.843844][ T1557] netif_set_mtu (net/core/dev.c:9652) 
[ 190.844153][ T1557] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 190.844490][ T1557] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 190.844723][ T1557] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 190.845032][ T1557] br_add_if (net/bridge/br_if.c:697) 
[ 190.845284][ T1557] do_set_master (net/core/rtnetlink.c:2948) 
[ 190.845587][ T1557] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 190.845903][ T1557] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 190.846212][ T1557] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 190.846524][ T1557] ? __dev_get_by_name (net/core/dev.c:865) 
[ 190.846830][ T1557] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 190.847131][ T1557] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 190.847454][ T1557] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 190.847755][ T1557] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 190.848070][ T1557] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 190.848410][ T1557] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 190.848727][ T1557] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 190.849041][ T1557] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 190.849349][ T1557] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 190.849662][ T1557] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 190.849967][ T1557] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 190.850283][ T1557] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 190.850597][ T1557] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 190.850905][ T1557] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 190.851212][ T1557] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 190.851530][ T1557] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 190.851845][ T1557] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 190.852145][ T1557] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 190.852476][ T1557] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 190.852788][ T1557] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 190.853089][ T1557] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 190.853407][ T1557] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 190.853717][ T1557] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 190.854020][ T1557] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 190.854339][ T1557] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 190.854647][ T1557] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 190.854952][ T1557] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 190.855349][ T1557] ___sys_sendmsg (net/socket.c:2670) 
[ 190.855658][ T1557] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 190.855960][ T1557] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 190.856293][ T1557] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 190.856603][ T1557] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 190.856919][ T1557] ? __handle_mm_fault (mm/memory.c:6212) 
[ 190.857223][ T1557] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 190.857533][ T1557] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 190.857862][ T1557] __sys_sendmsg (net/socket.c:2700) 
[ 190.858165][ T1557] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 190.858475][ T1557] ? 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) 
[ 190.858788][ T1557] ? 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) 
[ 190.859102][ T1557] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 190.859424][ T1557] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 190.859732][ T1557] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  190.860110][ T1557] RIP: 0033:0x7f7e4fe221e7
[ 190.860447][ T1557] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  190.861537][ T1557] RSP: 002b:00007fffde739498 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  190.861994][ T1557] RAX: ffffffffffffffda RBX: 00007fffde739bd0 RCX: 00007f7e4fe221e7
[  190.862457][ T1557] RDX: 0000000000000000 RSI: 00007fffde739500 RDI: 0000000000000005
[  190.862908][ T1557] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  190.863375][ T1557] R10: 00007f7e4feb0ac0 R11: 0000000000000246 R12: 00007fffde739c08
[  190.863825][ T1557] R13: 00000000686e1dca R14: 0000000000499600 R15: 00007fffde7395f0
| [  207.350942][   T69] ------------[ cut here ]------------
| [ 207.351358][ 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) 
| [  207.351976][   T69] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  207.353323][   T69] Tainted: [W]=WARN
[  207.353594][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  207.354046][   T69] Workqueue: netns cleanup_net
[ 207.354438][ 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) 
[ 207.354803][ T69] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  207.356056][   T69] RSP: 0018:ffffc900004a75b0 EFLAGS: 00010246
[  207.356507][   T69] RAX: 0000000000000000 RBX: ffff888005a92000 RCX: 0000000000000001
[  207.357023][   T69] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[  207.357553][   T69] RBP: ffffc900004a7698 R08: 0000000000000000 R09: 0000000000000000
[  207.358081][   T69] R10: ffffc900004a76c8 R11: ffffffffb8d8d1e0 R12: 1ffff92000094eba
[  207.358626][   T69] R13: 00000000000005dc R14: ffffc900004a76c8 R15: ffff888005a92f48
[  207.359152][   T69] FS:  0000000000000000(0000) GS:ffff8880b2699000(0000) knlGS:0000000000000000
[  207.359780][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  207.360221][   T69] CR2: 0000556907cf90f0 CR3: 000000001d34a004 CR4: 0000000000772ef0
[  207.360759][   T69] PKRU: 55555554
[  207.361038][   T69] Call Trace:
[  207.361320][   T69]  <TASK>
[ 207.361504][ 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) 
[ 207.361938][ T69] ? br_del_if (net/bridge/br_if.c:742) 
[ 207.362207][ T69] ? br_device_event (net/bridge/br.c:141) 
[ 207.362560][ T69] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 207.362908][ T69] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 207.363266][ T69] ? cleanup_net (net/core/net_namespace.c:684) 
[ 207.363622][ T69] ? process_one_work (kernel/workqueue.c:3238) 
[ 207.363970][ T69] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 207.364322][ T69] ? kthread (kernel/kthread.c:464) 
[ 207.364588][ T69] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 207.364956][ T69] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 207.365320][ T69] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 207.365689][ T69] netif_set_mtu (net/core/dev.c:9652) 
[ 207.366035][ T69] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 207.366418][ T69] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 207.366692][ T69] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 207.367056][ T69] br_del_if (net/bridge/br_if.c:743) 
[ 207.367333][ T69] br_device_event (net/bridge/br.c:141) 
[ 207.367685][ T69] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 207.368037][ T69] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 207.368409][ T69] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 207.368864][ 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) 
[ 207.369225][ T69] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 207.369676][ T69] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 207.370130][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 207.370578][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 207.371026][ T69] default_device_exit_batch (net/core/dev.c:12673) 
[ 207.371385][ T69] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 207.371827][ T69] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 207.372185][ T69] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 207.372560][ T69] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 207.372929][ T69] cleanup_net (net/core/net_namespace.c:684) 
[ 207.373290][ T69] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 207.373641][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 207.374012][ T69] process_one_work (kernel/workqueue.c:3238) 
[ 207.374384][ T69] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 207.374745][ T69] ? assign_work (kernel/workqueue.c:1200) 
[ 207.375107][ T69] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 207.375485][ T69] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 207.375851][ T69] kthread (kernel/kthread.c:464) 
[ 207.376121][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 207.376491][ T69] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 207.376844][ T69] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 207.377193][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 207.377564][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 207.377919][ T69] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 207.378286][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 207.378639][ T69] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  207.865307][   T69] ------------[ cut here ]------------
| [ 207.865719][ 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) 
| [  207.866343][   T69] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  207.867665][   T69] Tainted: [W]=WARN
[  207.867937][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  207.868393][   T69] Workqueue: netns cleanup_net
[ 207.868771][ 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) 
[ 207.869150][ T69] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  207.870406][   T69] RSP: 0000:ffffc900004a75b0 EFLAGS: 00010246
[  207.870863][   T69] RAX: 0000000000000000 RBX: ffff88801164a000 RCX: 0000000000000001
[  207.871409][   T69] RDX: 0000000000000000 RSI: ffffffffb8310759 RDI: ffffffffb7a58280
[  207.871920][   T69] RBP: ffffc900004a7698 R08: 0000000000000000 R09: 0000000000000000
[  207.872453][   T69] R10: ffffc900004a76c8 R11: ffffffffb8d8d1e0 R12: 1ffff92000094eba
[  207.872962][   T69] R13: 00000000000005dc R14: ffffc900004a76c8 R15: ffff88801164af48
[  207.873503][   T69] FS:  0000000000000000(0000) GS:ffff8880b2699000(0000) knlGS:0000000000000000
[  207.874098][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  207.874542][   T69] CR2: 00007f0cf9c23000 CR3: 000000001d34a004 CR4: 0000000000772ef0
[  207.875063][   T69] PKRU: 55555554
[  207.875342][   T69] Call Trace:
[  207.875609][   T69]  <TASK>
[ 207.875795][ 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) 
[ 207.876238][ T69] ? br_del_if (net/bridge/br_if.c:742) 
[ 207.876524][ T69] ? br_device_event (net/bridge/br.c:141) 
[ 207.876870][ T69] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 207.877224][ T69] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 207.877589][ T69] ? cleanup_net (net/core/net_namespace.c:684) 
[ 207.877941][ T69] ? process_one_work (kernel/workqueue.c:3238) 
[ 207.878294][ T69] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 207.878656][ T69] ? kthread (kernel/kthread.c:464) 
[ 207.878920][ T69] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 207.879293][ T69] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 207.879665][ T69] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 207.880035][ T69] netif_set_mtu (net/core/dev.c:9652) 
[ 207.880398][ T69] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 207.880764][ T69] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 207.881037][ T69] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 207.881396][ T69] br_del_if (net/bridge/br_if.c:743) 
[ 207.881665][ T69] br_device_event (net/bridge/br.c:141) 
[ 207.882030][ T69] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 207.882407][ T69] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 207.882763][ T69] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 207.883212][ 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) 
[ 207.883573][ T69] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 207.884021][ T69] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 207.884465][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 207.884912][ T69] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 207.885373][ T69] default_device_exit_batch (net/core/dev.c:12673) 
[ 207.885730][ T69] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 207.886173][ T69] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 207.886547][ T69] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 207.886897][ T69] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 207.887270][ T69] cleanup_net (net/core/net_namespace.c:684) 
[ 207.887622][ T69] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 207.887976][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 207.888340][ T69] process_one_work (kernel/workqueue.c:3238) 
[ 207.888705][ T69] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 207.889067][ T69] ? assign_work (kernel/workqueue.c:1200) 
[ 207.889443][ T69] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 207.889807][ T69] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 207.890154][ T69] kthread (kernel/kthread.c:464) 
[ 207.890433][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 207.890793][ T69] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 207.891137][ T69] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 207.891502][ T69] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 207.891856][ T69] ? __pfx_kthread (kernel/kthread.c:413) 
[ 207.892209][ T69] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 207.892586][ 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