======================================
| [   23.783267][  T282] vtep-host: entered promiscuous mode
| [   23.786277][  T282] ------------[ cut here ]------------
| [ 23.786658][ T282] WARNING: CPU: 2 PID: 282 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   23.787428][  T282] Modules linked in: 8021q veth br_netfilter bridge stp llc
[   23.789250][  T282] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 23.789684][ T282] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 23.790034][ T282] Code: 00 00 8b 05 87 1c 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 ca d1 79 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 87 1c 38 02    	mov    0x2381c87(%rip),%eax        # 0x2381c8f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 ca d1 79 00       	call   0x79d1eb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   23.791320][  T282] RSP: 0018:ffffc900005e6ef0 EFLAGS: 00010246
[   23.791754][  T282] RAX: 0000000000000000 RBX: ffff888002552000 RCX: 0000000000000001
[   23.792239][  T282] RDX: 0000000000000000 RSI: ffffffffbbc9f52e RDI: ffffffffbb45a5a0
[   23.792740][  T282] RBP: ffffc900005e6fe0 R08: 0000000000000000 R09: 0000000000000000
[   23.793214][  T282] R10: ffffc900005e7010 R11: ffffffffbc1798a0 R12: 1ffff920000bcde2
[   23.793698][  T282] R13: 00000000000005dc R14: ffffc900005e7010 R15: ffff888002552f08
[   23.794179][  T282] FS:  00007f0228ef9800(0000) GS:ffff8880785a7000(0000) knlGS:0000000000000000
[   23.794755][  T282] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.795163][  T282] CR2: 00000000004e6888 CR3: 000000000fdc4002 CR4: 0000000000772ef0
[   23.795656][  T282] PKRU: 55555554
[   23.795905][  T282] Call Trace:
[   23.796152][  T282]  <TASK>
[ 23.796328][ T282] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 23.796666][ T282] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.797019][ T282] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.797348][ T282] netif_set_mtu (net/core/dev.c:9652) 
[ 23.797687][ T282] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 23.798023][ T282] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 23.798274][ T282] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 23.798740][ T282] br_add_if (net/bridge/br_if.c:697) bridge 
[ 23.799118][ T282] do_set_master (net/core/rtnetlink.c:2948) 
[ 23.799458][ T282] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 23.799806][ T282] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 23.800209][ T282] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 23.800547][ T282] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 23.800869][ T282] ? __kernel_text_address (kernel/extable.c:79) 
[ 23.801206][ T282] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.801543][ T282] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 23.801867][ T282] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 23.802265][ T282] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.802613][ T282] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.802935][ T282] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 23.803260][ T282] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 23.803622][ T282] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.803946][ T282] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 23.804266][ T282] ? __create_object (mm/kmemleak.c:771) 
[ 23.804614][ T282] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 23.804942][ T282] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 23.805275][ T282] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 23.805694][ T282] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 23.806022][ T282] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 23.806348][ T282] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.806695][ T282] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.807026][ T282] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.807358][ T282] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 23.807689][ T282] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.808023][ T282] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.808364][ T282] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 23.808702][ T282] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.809028][ T282] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.809352][ T282] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 23.809715][ T282] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.810056][ T282] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 23.810387][ T282] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 23.810721][ T282] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 23.811043][ T282] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 23.811374][ T282] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 23.811748][ T282] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 23.812084][ T282] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 23.812411][ T282] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 23.812756][ T282] ? _copy_from_user (./arch/x86/include/asm/smap.h:29 ./arch/x86/include/asm/uaccess_64.h:134 ./arch/x86/include/asm/uaccess_64.h:141 ./include/linux/uaccess.h:178 lib/usercopy.c:18) 
[ 23.813079][ T282] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 23.813404][ T282] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 23.813738][ T282] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 23.814144][ T282] ___sys_sendmsg (net/socket.c:2670) 
[ 23.814491][ T282] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 23.814823][ T282] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 23.815501][ T282] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 23.815824][ T282] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.816149][ T282] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.816488][ T282] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.817040][ T282] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 23.817360][ T282] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.817706][ T282] __sys_sendmsg (net/socket.c:2700) 
[ 23.818028][ T282] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 23.818673][ T282] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 23.819007][ T282] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.819349][ T282] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 23.819917][ T282] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   23.820317][  T282] RIP: 0033:0x7f02290c61e7
[ 23.820672][ T282] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   23.822037][  T282] RSP: 002b:00007fff5433d3e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   23.822539][  T282] RAX: ffffffffffffffda RBX: 00007fff5433db20 RCX: 00007f02290c61e7
[   23.823249][  T282] RDX: 0000000000000000 RSI: 00007fff5433d450 RDI: 0000000000000005
[   23.823732][  T282] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   23.824210][  T282] R10: 000000000aa85910 R11: 0000000000000246 R12: 0000000000000004
[   23.824930][  T282] R13: 00000000686e511c R14: 0000000000499600 R15: 0000000000000000
| [   24.843528][  T289] ------------[ cut here ]------------
| [ 24.843860][ T289] WARNING: CPU: 3 PID: 289 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) 
| [   24.844497][  T289] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel 8021q veth br_netfilter bridge stp llc
| [   24.845790][  T289] Tainted: [W]=WARN
[   24.846057][  T289] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 24.846443][ T289] 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) 
[ 24.846776][ T289] Code: 00 00 8b 05 87 1c 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 ca d1 79 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 87 1c 38 02    	mov    0x2381c87(%rip),%eax        # 0x2381c8f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 ca d1 79 00       	call   0x79d1eb
  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
[   24.847998][  T289] RSP: 0018:ffffc90000566ef0 EFLAGS: 00010246
[   24.848405][  T289] RAX: 0000000000000000 RBX: ffff888002552000 RCX: 0000000000000001
[   24.848875][  T289] RDX: 0000000000000000 RSI: ffffffffbbc9f52e RDI: ffffffffbb45a5a0
[   24.849657][  T289] RBP: ffffc90000566fe0 R08: 0000000000000000 R09: 0000000000000000
[   24.850518][  T289] R10: ffffc90000567010 R11: ffffffffbc1798a0 R12: 1ffff920000acde2
[   24.851336][  T289] R13: 00000000000005dc R14: ffffc90000567010 R15: ffff888002552f08
[   24.852251][  T289] FS:  00007fb6ec4d4800(0000) GS:ffff888078627000(0000) knlGS:0000000000000000
[   24.853144][  T289] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.853802][  T289] CR2: 00000000004e58f8 CR3: 000000000c011004 CR4: 0000000000772ef0
[   24.854612][  T289] PKRU: 55555554
[   24.855004][  T289] Call Trace:
[   24.855409][  T289]  <TASK>
[ 24.855693][ T289] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 24.856221][ T289] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.856769][ T289] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.857294][ T289] netif_set_mtu (net/core/dev.c:9652) 
[ 24.857826][ T289] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 24.858386][ T289] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 24.858847][ T289] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 24.859631][ T289] br_add_if (net/bridge/br_if.c:697) bridge 
[ 24.860278][ T289] do_set_master (net/core/rtnetlink.c:2948) 
[ 24.860868][ T289] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 24.861436][ T289] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 24.862157][ T289] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 24.862749][ T289] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 24.863312][ T289] ? __kernel_text_address (kernel/extable.c:79) 
[ 24.863903][ T289] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.864488][ T289] ? __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) 
[ 24.865041][ T289] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 24.865752][ T289] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.866314][ T289] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.866910][ T289] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 24.867434][ T289] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 24.867974][ T289] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.868508][ T289] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 24.869031][ T289] ? __create_object (mm/kmemleak.c:771) 
[ 24.869586][ T289] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 24.870138][ T289] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 24.870719][ T289] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 24.871401][ T289] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 24.871991][ T289] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 24.872564][ T289] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.873048][ T289] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.873588][ T289] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.874108][ T289] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 24.874649][ T289] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.875173][ T289] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.875698][ T289] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 24.876249][ T289] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.876842][ T289] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.877422][ T289] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 24.877998][ T289] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.878592][ T289] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 24.879148][ T289] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 24.879718][ T289] ? 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) 
[ 24.880269][ T289] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 24.880833][ T289] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 24.881405][ T289] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 24.881984][ T289] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 24.882582][ T289] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 24.883141][ T289] ? _copy_from_user (./arch/x86/include/asm/smap.h:29 ./arch/x86/include/asm/uaccess_64.h:134 ./arch/x86/include/asm/uaccess_64.h:141 ./include/linux/uaccess.h:178 lib/usercopy.c:18) 
[ 24.883726][ T289] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 24.884297][ T289] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 24.884875][ T289] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 24.885602][ T289] ___sys_sendmsg (net/socket.c:2670) 
[ 24.886166][ T289] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 24.886759][ T289] ? __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) 
[ 24.887447][ T289] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 24.888007][ T289] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.888591][ T289] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.889153][ T289] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.889783][ T289] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 24.890103][ T289] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.890419][ T289] __sys_sendmsg (net/socket.c:2700) 
[ 24.890753][ T289] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 24.891142][ T289] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 24.891495][ T289] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.891813][ T289] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 24.892125][ T289] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   24.892518][  T289] RIP: 0033:0x7fb6ec6a11e7
[ 24.892839][ T289] 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)
[   24.893954][  T289] RSP: 002b:00007ffc881071e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   24.894420][  T289] RAX: ffffffffffffffda RBX: 00007ffc88107920 RCX: 00007fb6ec6a11e7
[   24.894901][  T289] RDX: 0000000000000000 RSI: 00007ffc88107250 RDI: 0000000000000005
[   24.895367][  T289] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   24.895850][  T289] R10: 0000000039565910 R11: 0000000000000246 R12: 0000000000000003
[   24.896320][  T289] R13: 00000000686e511d R14: 0000000000499600 R15: 0000000000000000
| [   26.673073][  T302] ------------[ cut here ]------------
| [ 26.673389][ T302] WARNING: CPU: 3 PID: 302 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   26.674528][  T302] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel 8021q veth br_netfilter bridge stp llc
| [   26.675693][  T302] Tainted: [W]=WARN
[   26.675909][  T302] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 26.676262][ T302] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 26.676559][ T302] Code: 00 00 8b 05 87 1c 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 ca d1 79 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 87 1c 38 02    	mov    0x2381c87(%rip),%eax        # 0x2381c8f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 ca d1 79 00       	call   0x79d1eb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   26.677572][  T302] RSP: 0018:ffffc90000aa7140 EFLAGS: 00010246
[   26.677927][  T302] RAX: 0000000000000000 RBX: ffff88800b852000 RCX: 0000000000000001
[   26.678350][  T302] RDX: 0000000000000000 RSI: ffffffffbbc9f52e RDI: ffffffffbb45a5a0
[   26.678783][  T302] RBP: ffffc90000aa7230 R08: ffff888004fd5000 R09: 0000000000000000
[   26.679203][  T302] R10: ffffc90000aa75c8 R11: ffffffffbca59728 R12: 1ffff92000154e2c
[   26.679638][  T302] R13: 00000000000003e8 R14: ffffc90000aa7880 R15: ffff888004d78760
[   26.680054][  T302] FS:  00007fece406f800(0000) GS:ffff888078627000(0000) knlGS:0000000000000000
[   26.680566][  T302] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.680915][  T302] CR2: 00000000004e58f8 CR3: 0000000004e07001 CR4: 0000000000772ef0
[   26.681336][  T302] PKRU: 55555554
[   26.681553][  T302] Call Trace:
[   26.681761][  T302]  <TASK>
[ 26.681904][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.682186][ T302] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 26.682475][ T302] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.682755][ T302] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 26.683034][ T302] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 26.683323][ T302] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 26.683616][ T302] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 26.683902][ T302] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 26.684256][ T302] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 26.684547][ T302] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 26.684824][ T302] ? __kernel_text_address (kernel/extable.c:79) 
[ 26.685105][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.685384][ T302] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 26.685671][ T302] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 26.686018][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.686300][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.686592][ T302] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 26.686870][ T302] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 26.687155][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.687436][ T302] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 26.687724][ T302] ? __create_object (mm/kmemleak.c:771) 
[ 26.688004][ T302] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 26.688286][ T302] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 26.688580][ T302] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 26.688926][ T302] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 26.689214][ T302] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 26.689523][ T302] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 26.689806][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.690091][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.690374][ T302] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 26.690660][ T302] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.690947][ T302] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 26.691226][ T302] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 26.691518][ T302] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 26.691802][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.692087][ T302] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 26.692367][ T302] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 26.692657][ T302] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 26.692950][ T302] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 26.693227][ T302] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 26.693517][ T302] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 26.693804][ T302] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 26.694094][ T302] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 26.694380][ T302] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 26.694669][ T302] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 26.694953][ T302] ? _copy_from_user (./arch/x86/include/asm/smap.h:29 ./arch/x86/include/asm/uaccess_64.h:134 ./arch/x86/include/asm/uaccess_64.h:141 ./include/linux/uaccess.h:178 lib/usercopy.c:18) 
[ 26.695236][ T302] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 26.695525][ T302] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 26.695806][ T302] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 26.696164][ T302] ___sys_sendmsg (net/socket.c:2670) 
[ 26.696447][ T302] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 26.696736][ T302] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 26.697090][ T302] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 26.697373][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.697663][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.697949][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.698226][ T302] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 26.698514][ T302] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.698801][ T302] __sys_sendmsg (net/socket.c:2700) 
[ 26.699076][ T302] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 26.699427][ T302] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 26.699738][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.700019][ T302] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 26.700302][ T302] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   26.700656][  T302] RIP: 0033:0x7fece423c1e7
[ 26.700947][ T302] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   26.701970][  T302] RSP: 002b:00007ffdf8c5b9f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   26.702394][  T302] RAX: ffffffffffffffda RBX: 00007ffdf8c5c130 RCX: 00007fece423c1e7
[   26.702820][  T302] RDX: 0000000000000000 RSI: 00007ffdf8c5ba60 RDI: 0000000000000005
[   26.703241][  T302] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   26.703668][  T302] R10: 00007fece4139498 R11: 0000000000000246 R12: 0000000000000003
[   26.704085][  T302] R13: 00000000686e511f R14: 0000000000499600 R15: 0000000000000000
| [   26.709820][  T302] ------------[ cut here ]------------
| [ 26.710156][ T302] WARNING: CPU: 3 PID: 302 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   26.710791][  T302] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel 8021q veth br_netfilter bridge stp llc
| [   26.712089][  T302] Tainted: [W]=WARN
[   26.712327][  T302] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 26.712723][ T302] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 26.713046][ T302] Code: 00 00 8b 05 87 1c 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 ca d1 79 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 87 1c 38 02    	mov    0x2381c87(%rip),%eax        # 0x2381c8f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 ca d1 79 00       	call   0x79d1eb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   26.714178][  T302] RSP: 0018:ffffc90000aa6de0 EFLAGS: 00010246
[   26.714586][  T302] RAX: 0000000000000000 RBX: ffff888002552000 RCX: 0000000000000001
[   26.715054][  T302] RDX: 0000000000000000 RSI: ffffffffbbc9f52e RDI: ffffffffbb45a5a0
[   26.715532][  T302] RBP: ffffc90000aa6ed0 R08: 0000000000000000 R09: 0000000000000000
[   26.716008][  T302] R10: ffffc90000aa6f00 R11: ffffffffbc1798a0 R12: 1ffff92000154dc0
[   26.716489][  T302] R13: 00000000000003e8 R14: ffffc90000aa6f00 R15: ffff888002552f08
[   26.716961][  T302] FS:  00007fece406f800(0000) GS:ffff888078627000(0000) knlGS:0000000000000000
[   26.717516][  T302] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.717918][  T302] CR2: 00000000004e58f8 CR3: 0000000004e07001 CR4: 0000000000772ef0
[   26.718639][  T302] PKRU: 55555554
[   26.718875][  T302] Call Trace:
[   26.719108][  T302]  <TASK>
[ 26.719272][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.719830][ T302] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 26.720146][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.720471][ T302] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 26.720782][ T302] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.721095][ T302] netif_set_mtu (net/core/dev.c:9652) 
[ 26.721644][ T302] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 26.721965][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.722277][ T302] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 26.722823][ T302] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 26.723062][ T302] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 26.723510][ T302] br_device_event (net/bridge/br.c:142) bridge 
[ 26.723856][ T302] ? __pfx_br_device_event (net/bridge/br.c:29) bridge 
[ 26.724528][ T302] notifier_call_chain (kernel/notifier.c:87 (discriminator 2)) 
[ 26.724852][ T302] netif_set_mtu_ext (./include/linux/notifier.h:207 net/core/dev.c:9633) 
[ 26.725165][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.725484][ T302] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 26.726023][ T302] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.726339][ T302] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 26.726658][ T302] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 26.726973][ T302] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 26.727526][ T302] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 26.727842][ T302] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 26.728235][ T302] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 26.728560][ T302] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 26.729096][ T302] ? __kernel_text_address (kernel/extable.c:79) 
[ 26.729410][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.729755][ T302] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 26.730067][ T302] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 26.730690][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.731007][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.731318][ T302] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 26.731645][ T302] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 26.732188][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.732508][ T302] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 26.732818][ T302] ? __create_object (mm/kmemleak.c:771) 
[ 26.733134][ T302] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 26.733687][ T302] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 26.733999][ T302] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 26.734389][ T302] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 26.734944][ T302] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 26.735263][ T302] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 26.735583][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.735904][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.736216][ T302] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 26.736763][ T302] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.737080][ T302] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 26.737402][ T302] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 26.737949][ T302] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 26.738278][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.738605][ T302] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 26.738919][ T302] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 26.739232][ T302] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 26.739847][ T302] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 26.740167][ T302] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 26.740488][ T302] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 26.740804][ T302] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 26.741373][ T302] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 26.741704][ T302] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 26.742037][ T302] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 26.742364][ T302] ? _copy_from_user (./arch/x86/include/asm/smap.h:29 ./arch/x86/include/asm/uaccess_64.h:134 ./arch/x86/include/asm/uaccess_64.h:141 ./include/linux/uaccess.h:178 lib/usercopy.c:18) 
[ 26.742943][ T302] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 26.743280][ T302] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 26.743617][ T302] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 26.744265][ T302] ___sys_sendmsg (net/socket.c:2670) 
[ 26.744601][ T302] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 26.744925][ T302] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 26.745335][ T302] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 26.745711][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.746043][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.746376][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.746714][ T302] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 26.747272][ T302] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.747614][ T302] __sys_sendmsg (net/socket.c:2700) 
[ 26.747940][ T302] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 26.748359][ T302] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 26.748718][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.749049][ T302] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 26.749379][ T302] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   26.750037][  T302] RIP: 0033:0x7fece423c1e7
[ 26.750380][ T302] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   26.751811][  T302] RSP: 002b:00007ffdf8c5b9f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   26.752306][  T302] RAX: ffffffffffffffda RBX: 00007ffdf8c5c130 RCX: 00007fece423c1e7
[   26.752797][  T302] RDX: 0000000000000000 RSI: 00007ffdf8c5ba60 RDI: 0000000000000005
[   26.753544][  T302] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   26.754037][  T302] R10: 00007fece4139498 R11: 0000000000000246 R12: 0000000000000003
[   26.754748][  T302] R13: 00000000686e511f R14: 0000000000499600 R15: 0000000000000000
| [   27.761565][  T305] ------------[ cut here ]------------
| [ 27.761890][ T305] WARNING: CPU: 0 PID: 305 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) 
| [   27.762445][  T305] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel 8021q veth br_netfilter bridge stp llc
| [   27.763762][  T305] Tainted: [W]=WARN
[   27.763975][  T305] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 27.764320][ T305] 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) 
[ 27.764796][ T305] Code: 00 00 8b 05 87 1c 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 ca d1 79 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 87 1c 38 02    	mov    0x2381c87(%rip),%eax        # 0x2381c8f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 ca d1 79 00       	call   0x79d1eb
  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
[   27.765959][  T305] RSP: 0018:ffffc900004e7140 EFLAGS: 00010246
[   27.766315][  T305] RAX: 0000000000000000 RBX: ffff88800b852000 RCX: 0000000000000001
[   27.766859][  T305] RDX: 0000000000000000 RSI: ffffffffbbc9f52e RDI: ffffffffbb45a5a0
[   27.767277][  T305] RBP: ffffc900004e7230 R08: ffff88800a57b800 R09: 0000000000000000
[   27.767823][  T305] R10: ffffc900004e75c8 R11: ffffffffbca59728 R12: 1ffff9200009ce2c
[   27.768241][  T305] R13: 00000000000003e8 R14: ffffc900004e7880 R15: ffff88800fd72360
[   27.768787][  T305] FS:  00007f79aea95800(0000) GS:ffff8880784a7000(0000) knlGS:0000000000000000
[   27.769271][  T305] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.769703][  T305] CR2: 00000000004e58f8 CR3: 000000000e377002 CR4: 0000000000772ef0
[   27.770125][  T305] PKRU: 55555554
[   27.770335][  T305] Call Trace:
[   27.770551][  T305]  <TASK>
[ 27.770692][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 27.770975][ T305] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 27.771257][ T305] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 27.771546][ T305] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 27.771823][ T305] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 27.772108][ T305] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 27.772391][ T305] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 27.772687][ T305] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 27.773043][ T305] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 27.773322][ T305] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 27.773605][ T305] ? __kernel_text_address (kernel/extable.c:79) 
[ 27.773893][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.774173][ T305] ? __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) 
[ 27.774450][ T305] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 27.774814][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 27.775093][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 27.775371][ T305] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 27.775654][ T305] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 27.775933][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 27.776213][ T305] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 27.776495][ T305] ? __create_object (mm/kmemleak.c:771) 
[ 27.776774][ T305] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 27.777055][ T305] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 27.777334][ T305] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 27.777687][ T305] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 27.777971][ T305] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 27.778256][ T305] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 27.778539][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.778824][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 27.779106][ T305] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 27.779383][ T305] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 27.779677][ T305] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 27.779955][ T305] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 27.780232][ T305] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 27.780523][ T305] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 27.780807][ T305] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 27.781087][ T305] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 27.781363][ T305] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 27.781650][ T305] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 27.781941][ T305] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 27.782218][ T305] ? 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) 
[ 27.782513][ T305] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 27.782795][ T305] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 27.783080][ T305] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 27.783362][ T305] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 27.783648][ T305] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 27.783927][ T305] ? _copy_from_user (./arch/x86/include/asm/smap.h:29 ./arch/x86/include/asm/uaccess_64.h:134 ./arch/x86/include/asm/uaccess_64.h:141 ./include/linux/uaccess.h:178 lib/usercopy.c:18) 
[ 27.784207][ T305] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 27.784500][ T305] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 27.784778][ T305] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 27.785141][ T305] ___sys_sendmsg (net/socket.c:2670) 
[ 27.785414][ T305] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 27.785700][ T305] ? __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) 
[ 27.786046][ T305] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 27.786327][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 27.786621][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.786904][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 27.787179][ T305] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 27.787453][ T305] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 27.787747][ T305] __sys_sendmsg (net/socket.c:2700) 
[ 27.788025][ T305] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 27.788366][ T305] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 27.788674][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 27.788955][ T305] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 27.789234][ T305] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   27.789593][  T305] RIP: 0033:0x7f79aec621e7
[ 27.789880][ T305] 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)
[   27.790892][  T305] RSP: 002b:00007ffe1ee3d4f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   27.791312][  T305] RAX: ffffffffffffffda RBX: 00007ffe1ee3dc30 RCX: 00007f79aec621e7
[   27.791735][  T305] RDX: 0000000000000000 RSI: 00007ffe1ee3d560 RDI: 0000000000000005
[   27.792153][  T305] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   27.792587][  T305] R10: 00007f79aeb5f498 R11: 0000000000000246 R12: 0000000000000003
[   27.793003][  T305] R13: 00000000686e5120 R14: 0000000000499600 R15: 0000000000000000
| [   28.796291][  T308] ------------[ cut here ]------------
| [ 28.797407][ T308] WARNING: CPU: 3 PID: 308 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) 
| [   28.797973][  T308] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel 8021q veth br_netfilter bridge stp llc
| [   28.799138][  T308] Tainted: [W]=WARN
[   28.799351][  T308] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 28.799717][ T308] 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) 
[ 28.800004][ T308] Code: 00 00 8b 05 87 1c 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 ca d1 79 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 87 1c 38 02    	mov    0x2381c87(%rip),%eax        # 0x2381c8f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 ca d1 79 00       	call   0x79d1eb
  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
[   28.801079][  T308] RSP: 0018:ffffc900006c7140 EFLAGS: 00010246
[   28.801451][  T308] RAX: 0000000000000000 RBX: ffff88800b852000 RCX: 0000000000000001
[   28.801898][  T308] RDX: 0000000000000000 RSI: ffffffffbbc9f52e RDI: ffffffffbb45a5a0
[   28.802344][  T308] RBP: ffffc900006c7230 R08: ffff888002170800 R09: 0000000000000000
[   28.802785][  T308] R10: ffffc900006c75c8 R11: ffffffffbca59728 R12: 1ffff920000d8e2c
[   28.803205][  T308] R13: 00000000000003e8 R14: ffffc900006c7880 R15: ffff888004db1fe0
[   28.803626][  T308] FS:  00007fd193ded800(0000) GS:ffff888078627000(0000) knlGS:0000000000000000
[   28.804119][  T308] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.804485][  T308] CR2: 00000000004e58f8 CR3: 000000000913d004 CR4: 0000000000772ef0
[   28.804904][  T308] PKRU: 55555554
[   28.805115][  T308] Call Trace:
[   28.805326][  T308]  <TASK>
[ 28.805476][ T308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 28.805759][ T308] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 28.806036][ T308] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 28.806325][ T308] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 28.806610][ T308] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 28.806887][ T308] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 28.807170][ T308] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 28.807457][ T308] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 28.807817][ T308] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 28.808098][ T308] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 28.808378][ T308] ? __kernel_text_address (kernel/extable.c:79) 
[ 28.808666][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 28.808947][ T308] ? __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) 
[ 28.809230][ T308] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 28.809638][ T308] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 28.809918][ T308] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 28.810200][ T308] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 28.810491][ T308] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 28.810771][ T308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 28.811048][ T308] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 28.811324][ T308] ? __create_object (mm/kmemleak.c:771) 
[ 28.811611][ T308] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 28.811893][ T308] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 28.812172][ T308] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 28.812534][ T308] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 28.812819][ T308] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 28.813102][ T308] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 28.813381][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 28.813673][ T308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 28.813952][ T308] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 28.814237][ T308] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 28.814530][ T308] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 28.814812][ T308] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 28.815091][ T308] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 28.815375][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 28.815665][ T308] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 28.815944][ T308] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 28.816220][ T308] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 28.816518][ T308] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 28.816800][ T308] ? 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) 
[ 28.817081][ T308] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 28.817361][ T308] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 28.817669][ T308] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 28.817953][ T308] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 28.818233][ T308] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 28.818524][ T308] ? _copy_from_user (./arch/x86/include/asm/smap.h:29 ./arch/x86/include/asm/uaccess_64.h:134 ./arch/x86/include/asm/uaccess_64.h:141 ./include/linux/uaccess.h:178 lib/usercopy.c:18) 
[ 28.818814][ T308] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 28.819096][ T308] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 28.819375][ T308] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 28.819748][ T308] ___sys_sendmsg (net/socket.c:2670) 
[ 28.820024][ T308] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 28.820304][ T308] ? __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) 
[ 28.820657][ T308] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 28.820946][ T308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 28.821238][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 28.821526][ T308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 28.821805][ T308] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 28.822081][ T308] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 28.822369][ T308] __sys_sendmsg (net/socket.c:2700) 
[ 28.822654][ T308] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 28.823000][ T308] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 28.823295][ T308] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 28.823582][ T308] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 28.823865][ T308] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   28.824208][  T308] RIP: 0033:0x7fd193fba1e7
[ 28.824501][ T308] 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)
[   28.825509][  T308] RSP: 002b:00007fff94bb0778 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   28.825928][  T308] RAX: ffffffffffffffda RBX: 00007fff94bb0eb0 RCX: 00007fd193fba1e7
[   28.826345][  T308] RDX: 0000000000000000 RSI: 00007fff94bb07e0 RDI: 0000000000000005
[   28.826772][  T308] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   28.827197][  T308] R10: 00007fd193eb7498 R11: 0000000000000246 R12: 0000000000000003
[   28.827623][  T308] R13: 00000000686e5121 R14: 0000000000499600 R15: 0000000000000000
| [   30.160532][   T65] ------------[ cut here ]------------
| [ 30.160887][ T65] WARNING: CPU: 1 PID: 65 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   30.161613][   T65] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel 8021q veth br_netfilter bridge stp llc
| [   30.163097][   T65] Tainted: [W]=WARN
[   30.163347][   T65] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.163762][   T65] Workqueue: netns cleanup_net
[ 30.164112][ T65] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 30.164450][ T65] Code: 00 00 8b 05 87 1c 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 ca d1 79 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 87 1c 38 02    	mov    0x2381c87(%rip),%eax        # 0x2381c8f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 ca d1 79 00       	call   0x79d1eb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   30.165616][   T65] RSP: 0018:ffffc900004675b0 EFLAGS: 00010246
[   30.166024][   T65] RAX: 0000000000000000 RBX: ffff888002552000 RCX: 0000000000000001
[   30.166525][   T65] RDX: 0000000000000000 RSI: ffffffffbbc9f52e RDI: ffffffffbb45a5a0
[   30.167018][   T65] RBP: ffffc900004676a0 R08: 0000000000000000 R09: 0000000000000000
[   30.167701][   T65] R10: ffffc900004676d0 R11: ffffffffb88914d8 R12: 1ffff9200008ceba
[   30.168191][   T65] R13: 00000000000003e8 R14: ffffc900004676d0 R15: ffff888002552f08
[   30.168974][   T65] FS:  0000000000000000(0000) GS:ffff888078527000(0000) knlGS:0000000000000000
[   30.169714][   T65] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.170159][   T65] CR2: 0000000000406141 CR3: 0000000025136002 CR4: 0000000000772ef0
[   30.170791][   T65] PKRU: 55555554
[   30.171041][   T65] Call Trace:
[   30.171284][   T65]  <TASK>
[ 30.171447][ T65] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 30.171985][ T65] ? __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) 
[ 30.172395][ T65] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 30.172801][ T65] ? br_device_event (net/bridge/br.c:141) bridge 
[ 30.173168][ T65] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 30.173503][ T65] ? ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 30.173827][ T65] ? cleanup_net (net/core/net_namespace.c:684) 
[ 30.174144][ T65] ? process_one_work (kernel/workqueue.c:3238) 
[ 30.174484][ T65] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 30.174808][ T65] ? kthread (kernel/kthread.c:464) 
[ 30.175048][ T65] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 30.175379][ T65] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 30.175728][ T65] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 30.176062][ T65] netif_set_mtu (net/core/dev.c:9652) 
[ 30.176384][ T65] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 30.176736][ T65] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 30.176982][ T65] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 30.177426][ T65] br_del_if (net/bridge/br_if.c:743) bridge 
[ 30.177801][ T65] br_device_event (net/bridge/br.c:141) bridge 
[ 30.178161][ T65] ? __pfx_br_device_event (net/bridge/br.c:29) bridge 
[ 30.178609][ T65] ? netconsole_netdev_event (drivers/net/netconsole.c:1474) 
[ 30.178944][ T65] notifier_call_chain (kernel/notifier.c:87 (discriminator 2)) 
[ 30.179279][ T65] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 30.179712][ T65] ? 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) 
[ 30.180038][ T65] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 30.180442][ T65] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 30.180852][ T65] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 30.181254][ T65] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 30.181669][ T65] default_device_exit_batch (net/core/dev.c:12673) 
[ 30.181992][ T65] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 30.182402][ T65] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 30.182742][ T65] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 30.183098][ T65] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 30.183431][ T65] cleanup_net (net/core/net_namespace.c:684) 
[ 30.183773][ T65] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 30.184103][ T65] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 30.184429][ T65] process_one_work (kernel/workqueue.c:3238) 
[ 30.184775][ T65] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 30.185109][ T65] ? assign_work (kernel/workqueue.c:1200) 
[ 30.185441][ T65] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 30.185794][ T65] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 30.186121][ T65] kthread (kernel/kthread.c:464) 
[ 30.186366][ T65] ? __pfx_kthread (kernel/kthread.c:413) 
[ 30.186700][ T65] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 30.187021][ T65] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 30.187348][ T65] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 30.187688][ T65] ? __pfx_kthread (kernel/kthread.c:413) 
[ 30.188018][ T65] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 30.188340][ T65] ? __pfx_kthread (kernel/kthread.c:413) 


Finger prints:
netif_set_mtu_ext:rtnl_newlink:rtnetlink_rcv_msg:netlink_rcv_skb:netlink_unicast
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:br_mtu_auto_adjust:br_device_event
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