======================================
| [   19.845882][  T309] br0: port 1(swp1) entered forwarding state
| [   19.848475][  T309] ------------[ cut here ]------------
| [ 19.848781][ T309] WARNING: CPU: 3 PID: 309 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) 
| [   19.849431][  T309] Modules linked in:
[   19.850273][  T309] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.850652][ T309] 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) 
[ 19.850962][ T309] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   19.852060][  T309] RSP: 0018:ffffc90000d96ef0 EFLAGS: 00010246
[   19.852467][  T309] RAX: 0000000000000000 RBX: ffff88800e34a000 RCX: 0000000000000001
[   19.852913][  T309] RDX: 0000000000000000 RSI: ffffffff9d710751 RDI: ffffffff9ce58280
[   19.853385][  T309] RBP: ffffc90000d96fd8 R08: 0000000000000000 R09: 0000000000000000
[   19.853835][  T309] R10: ffffc90000d97008 R11: ffffffff9e18d1e0 R12: 1ffff920001b2de2
[   19.854297][  T309] R13: 00000000000005dc R14: ffffc90000d97008 R15: ffff88800e34af48
[   19.854741][  T309] FS:  00007f8b78693800(0000) GS:ffff8880cd319000(0000) knlGS:0000000000000000
[   19.855281][  T309] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.855654][  T309] CR2: 00000000004e6888 CR3: 000000000982d001 CR4: 0000000000772ef0
[   19.856104][  T309] PKRU: 55555554
[   19.856351][  T309] Call Trace:
[   19.856574][  T309]  <TASK>
[ 19.856729][ T309] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.857038][ T309] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.857376][ T309] netif_set_mtu (net/core/dev.c:9652) 
[ 19.857683][ T309] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.857997][ T309] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.858236][ T309] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 19.858561][ T309] br_add_if (net/bridge/br_if.c:697) 
[ 19.858795][ T309] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 19.859094][ T309] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.859414][ T309] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.859796][ T309] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.860092][ T309] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.860411][ T309] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.860717][ T309] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.861035][ T309] ? __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) 
[ 19.861383][ T309] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.861750][ T309] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.862054][ T309] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.862358][ T309] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.862665][ T309] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.862970][ T309] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.863271][ T309] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.863579][ T309] ? __create_object (mm/kmemleak.c:771) 
[ 19.863892][ T309] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.864199][ T309] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.864517][ T309] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.864881][ T309] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.865191][ T309] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.865506][ T309] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.865800][ T309] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.866098][ T309] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.866405][ T309] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.866713][ T309] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.867011][ T309] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.867314][ T309] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.867625][ T309] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.867926][ T309] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.868236][ T309] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.868550][ T309] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.868845][ T309] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.869148][ T309] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.869453][ T309] ? 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) 
[ 19.869769][ T309] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 19.870067][ T309] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.870384][ T309] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.870703][ T309] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.870999][ T309] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.871318][ T309] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.871639][ T309] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.871946][ T309] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.872247][ T309] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.872638][ T309] ___sys_sendmsg (net/socket.c:2670) 
[ 19.872934][ T309] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.873237][ T309] ? __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) 
[ 19.873606][ T309] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.873921][ T309] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.874226][ T309] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.874525][ T309] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.874833][ T309] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.875136][ T309] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.875447][ T309] __sys_sendmsg (net/socket.c:2700) 
[ 19.875764][ T309] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.876126][ T309] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.876442][ T309] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.876752][ T309] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.877052][ T309] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.877442][  T309] RIP: 0033:0x7f8b788601e7
[ 19.877896][ T309] 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)
[   19.878973][  T309] RSP: 002b:00007ffe42a57908 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.879428][  T309] RAX: ffffffffffffffda RBX: 00007ffe42a58040 RCX: 00007f8b788601e7
[   19.879887][  T309] RDX: 0000000000000000 RSI: 00007ffe42a57970 RDI: 0000000000000005
[   19.880336][  T309] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.880777][  T309] R10: 0000000020314910 R11: 0000000000000246 R12: 0000000000000004
[   19.881272][  T309] R13: 00000000686e7188 R14: 0000000000499600 R15: 0000000000000000
| [   20.318880][  T311] ------------[ cut here ]------------
| [ 20.319432][ T311] WARNING: CPU: 3 PID: 311 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) 
| [   20.320043][  T311] Modules linked in: vxlan
| [   20.321152][  T311] Tainted: [W]=WARN
[   20.321413][  T311] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.321809][ T311] 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) 
[ 20.322128][ T311] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   20.323243][  T311] RSP: 0018:ffffc90000db7080 EFLAGS: 00010246
[   20.323646][  T311] RAX: 0000000000000000 RBX: ffff88800e34a000 RCX: 0000000000000001
[   20.324109][  T311] RDX: 0000000000000000 RSI: ffffffff9d710751 RDI: ffffffff9ce58280
[   20.324587][  T311] RBP: ffffc90000db7168 R08: 0000000000000000 R09: 0000000000000000
[   20.325057][  T311] R10: ffffc90000db7198 R11: ffffffff9e18d1e0 R12: 1ffff920001b6e14
[   20.325553][  T311] R13: 00000000000005dc R14: ffffc90000db7198 R15: ffff88800e34af48
[   20.326026][  T311] FS:  00007ff66e86a800(0000) GS:ffff8880cd319000(0000) knlGS:0000000000000000
[   20.326576][  T311] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.326982][  T311] CR2: 000000000043d940 CR3: 000000000f16b005 CR4: 0000000000772ef0
[   20.327452][  T311] PKRU: 55555554
[   20.327698][  T311] Call Trace:
[   20.327927][  T311]  <TASK>
[ 20.328084][ T311] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.328396][ T311] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.328734][ T311] netif_set_mtu (net/core/dev.c:9652) 
[ 20.329040][ T311] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.329376][ T311] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.329612][ T311] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 20.329936][ T311] br_add_if (net/bridge/br_if.c:697) 
[ 20.330191][ T311] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 20.330501][ T311] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 20.330825][ T311] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 20.331144][ T311] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 20.331463][ T311] ? __dev_get_by_name (net/core/dev.c:865) 
[ 20.331794][ T311] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 20.332103][ T311] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 20.332422][ T311] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.332732][ T311] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 20.333056][ T311] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 20.333382][ T311] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.333701][ T311] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.334038][ T311] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.334352][ T311] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.334662][ T311] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.334977][ T311] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.335295][ T311] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.335609][ T311] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.335929][ T311] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.336250][ T311] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.336569][ T311] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.336898][ T311] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.337212][ T311] ? 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) 
[ 20.337522][ T311] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 20.337831][ T311] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.338158][ T311] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.338486][ T311] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.338797][ T311] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.339122][ T311] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.339439][ T311] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.339747][ T311] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.340069][ T311] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.340471][ T311] ___sys_sendmsg (net/socket.c:2670) 
[ 20.340778][ T311] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.341112][ T311] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 20.341434][ T311] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 20.341736][ T311] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 20.342058][ T311] ? __handle_mm_fault (mm/memory.c:6212) 
[ 20.342382][ T311] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 20.342687][ T311] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 20.343038][ T311] __sys_sendmsg (net/socket.c:2700) 
[ 20.343355][ T311] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.343658][ T311] ? 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) 
[ 20.343965][ T311] ? 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) 
[ 20.344291][ T311] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.344604][ T311] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.344909][ T311] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.345307][  T311] RIP: 0033:0x7ff66ea371e7
[ 20.345626][ T311] Code: Unable to access opcode bytes at 0x7ff66ea371bd.

Code starting with the faulting instruction
===========================================
[   20.346025][  T311] RSP: 002b:00007fffc37deb98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.346516][  T311] RAX: ffffffffffffffda RBX: 00007fffc37df2d0 RCX: 00007ff66ea371e7
[   20.346971][  T311] RDX: 0000000000000000 RSI: 00007fffc37dec00 RDI: 0000000000000005
[   20.347449][  T311] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   20.347907][  T311] R10: 00007ff66eac5ac0 R11: 0000000000000246 R12: 00007fffc37df308
[   20.348387][  T311] R13: 00000000686e7188 R14: 0000000000499600 R15: 00007fffc37decf0
| [   21.986431][  T325] ------------[ cut here ]------------
| [ 21.986732][ T325] WARNING: CPU: 3 PID: 325 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) 
| [   21.987341][  T325] Modules linked in: vxlan
| [   21.988247][  T325] Tainted: [W]=WARN
[   21.988471][  T325] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 21.988839][ T325] 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) 
[ 21.989144][ T325] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   21.990203][  T325] RSP: 0018:ffffc900005d6ef0 EFLAGS: 00010246
[   21.990574][  T325] RAX: 0000000000000000 RBX: ffff8880058fa000 RCX: 0000000000000001
[   21.991017][  T325] RDX: 0000000000000000 RSI: ffffffff9d710751 RDI: ffffffff9ce58280
[   21.991473][  T325] RBP: ffffc900005d6fd8 R08: 0000000000000000 R09: 0000000000000000
[   21.991913][  T325] R10: ffffc900005d7008 R11: ffffffff9e18d1e0 R12: 1ffff920000bade2
[   21.992502][  T325] R13: 00000000000005dc R14: ffffc900005d7008 R15: ffff8880058faf48
[   21.992948][  T325] FS:  00007fb2fc787800(0000) GS:ffff8880cd319000(0000) knlGS:0000000000000000
[   21.993617][  T325] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.993991][  T325] CR2: 00000000004e6888 CR3: 000000000b767002 CR4: 0000000000772ef0
[   21.994572][  T325] PKRU: 55555554
[   21.994793][  T325] Call Trace:
[   21.995012][  T325]  <TASK>
[ 21.995165][ T325] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 21.995543][ T325] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.995850][ T325] netif_set_mtu (net/core/dev.c:9652) 
[ 21.996145][ T325] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 21.996466][ T325] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 21.996691][ T325] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 21.996989][ T325] br_add_if (net/bridge/br_if.c:697) 
[ 21.997232][ T325] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 21.997533][ T325] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 21.997832][ T325] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 21.998213][ T325] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 21.998507][ T325] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 21.998800][ T325] ? __kernel_text_address (kernel/extable.c:79) 
[ 21.999100][ T325] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.999409][ T325] ? __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) 
[ 21.999711][ T325] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 22.000080][ T325] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 22.000388][ T325] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 22.000683][ T325] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 22.000977][ T325] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 22.001299][ T325] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.001595][ T325] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 22.001886][ T325] ? __create_object (mm/kmemleak.c:771) 
[ 22.002202][ T325] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 22.002504][ T325] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 22.002802][ T325] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 22.003185][ T325] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 22.003490][ T325] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 22.003791][ T325] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 22.004087][ T325] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.004408][ T325] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.004704][ T325] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 22.004996][ T325] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 22.005311][ T325] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 22.005607][ T325] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 22.005904][ T325] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 22.006218][ T325] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.006518][ T325] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 22.006821][ T325] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 22.007121][ T325] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 22.007438][ T325] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 22.007730][ T325] ? 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) 
[ 22.008028][ T325] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 22.008338][ T325] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 22.008632][ T325] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.008938][ T325] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 22.009254][ T325] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 22.009559][ T325] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 22.009861][ T325] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 22.010159][ T325] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 22.010467][ T325] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 22.010846][ T325] ___sys_sendmsg (net/socket.c:2670) 
[ 22.011148][ T325] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 22.011455][ T325] ? __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) 
[ 22.011824][ T325] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 22.012126][ T325] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.012443][ T325] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.012747][ T325] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.013041][ T325] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 22.013366][ T325] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 22.013674][ T325] __sys_sendmsg (net/socket.c:2700) 
[ 22.013970][ T325] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 22.014343][ T325] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 22.014654][ T325] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 22.014949][ T325] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 22.015257][ T325] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   22.015628][  T325] RIP: 0033:0x7fb2fc9541e7
[ 22.015934][ T325] 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)
[   22.016990][  T325] RSP: 002b:00007ffe7aaa0a68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   22.017450][  T325] RAX: ffffffffffffffda RBX: 00007ffe7aaa11a0 RCX: 00007fb2fc9541e7
[   22.017895][  T325] RDX: 0000000000000000 RSI: 00007ffe7aaa0ad0 RDI: 0000000000000005
[   22.018345][  T325] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   22.018780][  T325] R10: 000000000fac2910 R11: 0000000000000246 R12: 0000000000000004
[   22.019225][  T325] R13: 00000000686e718a R14: 0000000000499600 R15: 0000000000000000
| [   22.267647][  T327] ------------[ cut here ]------------
| [ 22.267954][ T327] WARNING: CPU: 3 PID: 327 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) 
| [   22.268576][  T327] Modules linked in: vxlan
| [   22.269544][  T327] Tainted: [W]=WARN
[   22.269782][  T327] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 22.270198][ T327] 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) 
[ 22.270525][ T327] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   22.271685][  T327] RSP: 0018:ffffc90000617080 EFLAGS: 00010246
[   22.272083][  T327] RAX: 0000000000000000 RBX: ffff8880058fa000 RCX: 0000000000000001
[   22.272562][  T327] RDX: 0000000000000000 RSI: ffffffff9d710751 RDI: ffffffff9ce58280
[   22.273029][  T327] RBP: ffffc90000617168 R08: 0000000000000000 R09: 0000000000000000
[   22.273510][  T327] R10: ffffc90000617198 R11: ffffffff9eaceab8 R12: 1ffff920000c2e14
[   22.273983][  T327] R13: 00000000000005dc R14: ffffc90000617198 R15: ffff8880058faf48
[   22.274468][  T327] FS:  00007fd7a9d44800(0000) GS:ffff8880cd319000(0000) knlGS:0000000000000000
[   22.275021][  T327] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.275431][  T327] CR2: 00007fd7a9f9fb78 CR3: 000000000b767004 CR4: 0000000000772ef0
[   22.275905][  T327] PKRU: 55555554
[   22.276139][  T327] Call Trace:
[   22.276384][  T327]  <TASK>
[ 22.276547][ T327] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 22.276865][ T327] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 22.277196][ T327] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 22.277590][ T327] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 22.277907][ T327] netif_set_mtu (net/core/dev.c:9652) 
[ 22.278240][ T327] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 22.278571][ T327] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 22.278967][ T327] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 22.279212][ T327] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 22.279529][ T327] br_add_if (net/bridge/br_if.c:697) 
[ 22.279774][ T327] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 22.280087][ T327] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 22.280414][ T327] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 22.280734][ T327] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 22.281042][ T327] ? __dev_get_by_name (net/core/dev.c:865) 
[ 22.281371][ T327] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 22.281681][ T327] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 22.281995][ T327] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 22.282329][ T327] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 22.282649][ T327] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 22.282971][ T327] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 22.283294][ T327] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 22.283618][ T327] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 22.283927][ T327] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 22.284247][ T327] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 22.284558][ T327] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 22.284873][ T327] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 22.285199][ T327] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.285518][ T327] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 22.285831][ T327] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 22.286145][ T327] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 22.286487][ T327] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 22.286803][ T327] ? 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) 
[ 22.287118][ T327] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 22.287441][ T327] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 22.287757][ T327] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.288072][ T327] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 22.288395][ T327] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 22.288708][ T327] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 22.289026][ T327] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 22.289351][ T327] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 22.289660][ T327] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 22.290060][ T327] ___sys_sendmsg (net/socket.c:2670) 
[ 22.290420][ T327] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 22.290732][ T327] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 22.291045][ T327] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 22.291369][ T327] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 22.291684][ T327] ? __handle_mm_fault (mm/memory.c:6212) 
[ 22.291994][ T327] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 22.292324][ T327] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 22.292654][ T327] __sys_sendmsg (net/socket.c:2700) 
[ 22.292965][ T327] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 22.293281][ T327] ? 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) 
[ 22.293602][ T327] ? 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) 
[ 22.293913][ T327] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 22.294244][ T327] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 22.294568][ T327] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   22.294951][  T327] RIP: 0033:0x7fd7a9f111e7
[ 22.295282][ T327] 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)
[   22.296398][  T327] RSP: 002b:00007ffd22dfda58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   22.296881][  T327] RAX: ffffffffffffffda RBX: 00007ffd22dfe190 RCX: 00007fd7a9f111e7
[   22.297352][  T327] RDX: 0000000000000000 RSI: 00007ffd22dfdac0 RDI: 0000000000000005
[   22.297814][  T327] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   22.298303][  T327] R10: 00007fd7a9f9fac0 R11: 0000000000000246 R12: 00007ffd22dfe1c8
[   22.298783][  T327] R13: 00000000686e718a R14: 0000000000499600 R15: 00007ffd22dfdbb0
| [   44.273921][  T515] ------------[ cut here ]------------
| [ 44.275846][ T515] WARNING: CPU: 3 PID: 515 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) 
| [   44.276561][  T515] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   44.277635][  T515] Tainted: [W]=WARN
[   44.277864][  T515] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 44.278242][ T515] 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) 
[ 44.278567][ T515] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   44.279630][  T515] RSP: 0018:ffffc90000c86ef0 EFLAGS: 00010246
[   44.280007][  T515] RAX: 0000000000000000 RBX: ffff88800b48a000 RCX: 0000000000000001
[   44.280486][  T515] RDX: 0000000000000000 RSI: ffffffff9d710751 RDI: ffffffff9ce58280
[   44.280934][  T515] RBP: ffffc90000c86fd8 R08: 0000000000000000 R09: 0000000000000000
[   44.281400][  T515] R10: ffffc90000c87008 R11: ffffffff9e18d1e0 R12: 1ffff92000190de2
[   44.281847][  T515] R13: 00000000000005dc R14: ffffc90000c87008 R15: ffff88800b48af48
[   44.282297][  T515] FS:  00007f8a0e1ce800(0000) GS:ffff8880cd319000(0000) knlGS:0000000000000000
[   44.282836][  T515] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.283214][  T515] CR2: 00000000004e6888 CR3: 000000000ea7b006 CR4: 0000000000772ef0
[   44.283668][  T515] PKRU: 55555554
[   44.283891][  T515] Call Trace:
[   44.284112][  T515]  <TASK>
[ 44.284275][ T515] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 44.284592][ T515] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 44.284901][ T515] netif_set_mtu (net/core/dev.c:9652) 
[ 44.285229][ T515] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 44.285542][ T515] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 44.285769][ T515] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 44.286066][ T515] br_add_if (net/bridge/br_if.c:697) 
[ 44.286310][ T515] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 44.286610][ T515] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 44.286935][ T515] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 44.287321][ T515] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 44.287615][ T515] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 44.287907][ T515] ? __kernel_text_address (kernel/extable.c:79) 
[ 44.288247][ T515] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 44.288546][ T515] ? __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) 
[ 44.288843][ T515] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 44.289231][ T515] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 44.289529][ T515] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 44.289822][ T515] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 44.290118][ T515] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 44.290423][ T515] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 44.290722][ T515] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 44.291015][ T515] ? __create_object (mm/kmemleak.c:771) 
[ 44.291335][ T515] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 44.291642][ T515] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 44.291942][ T515] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 44.292323][ T515] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 44.292628][ T515] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 44.292932][ T515] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 44.293239][ T515] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 44.293732][ T515] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 44.294036][ T515] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 44.294345][ T515] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 44.294644][ T515] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 44.294937][ T515] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 44.295246][ T515] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 44.295547][ T515] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 44.295848][ T515] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 44.296145][ T515] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 44.296463][ T515] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 44.296772][ T515] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 44.297065][ T515] ? 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) 
[ 44.297374][ T515] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 44.297672][ T515] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 44.297966][ T515] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 44.298276][ T515] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 44.298581][ T515] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 44.298875][ T515] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 44.299214][ T515] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 44.299515][ T515] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 44.299808][ T515] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 44.300198][ T515] ___sys_sendmsg (net/socket.c:2670) 
[ 44.300493][ T515] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 44.300817][ T515] ? __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) 
[ 44.301264][ T515] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 44.301568][ T515] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 44.301868][ T515] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 44.302167][ T515] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 44.302477][ T515] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 44.302769][ T515] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 44.303077][ T515] __sys_sendmsg (net/socket.c:2700) 
[ 44.303389][ T515] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 44.303758][ T515] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 44.304066][ T515] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 44.304374][ T515] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 44.304672][ T515] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   44.305069][  T515] RIP: 0033:0x7f8a0e39b1e7
[ 44.305397][ T515] 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)
[   44.306559][  T515] RSP: 002b:00007ffd401c2598 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   44.307007][  T515] RAX: ffffffffffffffda RBX: 00007ffd401c2cd0 RCX: 00007f8a0e39b1e7
[   44.307466][  T515] RDX: 0000000000000000 RSI: 00007ffd401c2600 RDI: 0000000000000005
[   44.307929][  T515] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   44.308378][  T515] R10: 00000000361e2910 R11: 0000000000000246 R12: 0000000000000004
[   44.308821][  T515] R13: 00000000686e71a0 R14: 0000000000499600 R15: 0000000000000000
| [   44.570911][  T517] ------------[ cut here ]------------
| [ 44.571532][ T517] WARNING: CPU: 2 PID: 517 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) 
| [   44.572161][  T517] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   44.573395][  T517] Tainted: [W]=WARN
[   44.573640][  T517] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 44.574039][ T517] 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) 
[ 44.574415][ T517] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   44.575668][  T517] RSP: 0018:ffffc90000c97080 EFLAGS: 00010246
[   44.576078][  T517] RAX: 0000000000000000 RBX: ffff88800b48a000 RCX: 0000000000000001
[   44.576578][  T517] RDX: 0000000000000000 RSI: ffffffff9d710751 RDI: ffffffff9ce58280
[   44.577060][  T517] RBP: ffffc90000c97168 R08: 0000000000000000 R09: 0000000000000000
[   44.577539][  T517] R10: ffffc90000c97198 R11: ffffffff9e18d1e0 R12: 1ffff92000192e14
[   44.578010][  T517] R13: 00000000000005dc R14: ffffc90000c97198 R15: ffff88800b48af48
[   44.578503][  T517] FS:  00007f44376dc800(0000) GS:ffff8880cd299000(0000) knlGS:0000000000000000
[   44.579061][  T517] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.579467][  T517] CR2: 000000000043d940 CR3: 000000000f2ed003 CR4: 0000000000772ef0
[   44.579987][  T517] PKRU: 55555554
[   44.580259][  T517] Call Trace:
[   44.580508][  T517]  <TASK>
[ 44.580679][ T517] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 44.581025][ T517] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 44.581407][ T517] netif_set_mtu (net/core/dev.c:9652) 
[ 44.581738][ T517] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 44.582082][ T517] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 44.582360][ T517] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 44.582686][ T517] br_add_if (net/bridge/br_if.c:697) 
[ 44.582940][ T517] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 44.583270][ T517] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 44.583595][ T517] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 44.583927][ T517] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 44.584259][ T517] ? __dev_get_by_name (net/core/dev.c:865) 
[ 44.584579][ T517] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 44.584916][ T517] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 44.585254][ T517] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 44.585604][ T517] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 44.585954][ T517] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 44.586435][ T517] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 44.586777][ T517] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 44.587115][ T517] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 44.587459][ T517] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 44.587780][ T517] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 44.588106][ T517] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 44.588435][ T517] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 44.588767][ T517] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 44.589088][ T517] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 44.589433][ T517] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 44.589760][ T517] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 44.590099][ T517] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 44.590439][ T517] ? 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) 
[ 44.590769][ T517] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 44.591093][ T517] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 44.591432][ T517] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 44.591754][ T517] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 44.592071][ T517] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 44.592430][ T517] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 44.592774][ T517] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 44.593116][ T517] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 44.593473][ T517] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 44.593899][ T517] ___sys_sendmsg (net/socket.c:2670) 
[ 44.594348][ T517] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 44.594671][ T517] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 44.595014][ T517] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 44.595344][ T517] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 44.595662][ T517] ? __handle_mm_fault (mm/memory.c:6212) 
[ 44.596000][ T517] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 44.596359][ T517] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 44.596731][ T517] __sys_sendmsg (net/socket.c:2700) 
[ 44.597073][ T517] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 44.597401][ T517] ? 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) 
[ 44.597725][ T517] ? 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) 
[ 44.598045][ T517] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 44.598408][ T517] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 44.598728][ T517] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   44.599111][  T517] RIP: 0033:0x7f44378a91e7
[ 44.599458][ T517] 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)
[   44.600585][  T517] RSP: 002b:00007fffe5de0fa8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   44.601075][  T517] RAX: ffffffffffffffda RBX: 00007fffe5de16e0 RCX: 00007f44378a91e7
[   44.601575][  T517] RDX: 0000000000000000 RSI: 00007fffe5de1010 RDI: 0000000000000005
[   44.602063][  T517] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   44.602570][  T517] R10: 00007f4437937ac0 R11: 0000000000000246 R12: 00007fffe5de1718
[   44.603045][  T517] R13: 00000000686e71a1 R14: 0000000000499600 R15: 00007fffe5de1100
| [   46.297240][  T530] ------------[ cut here ]------------
| [ 46.297562][ T530] WARNING: CPU: 0 PID: 530 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) 
| [   46.298162][  T530] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   46.299334][  T530] Tainted: [W]=WARN
[   46.299571][  T530] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 46.299967][ T530] 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) 
[ 46.300290][ T530] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   46.301402][  T530] RSP: 0018:ffffc90000d36ef0 EFLAGS: 00010246
[   46.301852][  T530] RAX: 0000000000000000 RBX: ffff888005cc2000 RCX: 0000000000000001
[   46.302305][  T530] RDX: 0000000000000000 RSI: ffffffff9d710751 RDI: ffffffff9ce58280
[   46.302772][  T530] RBP: ffffc90000d36fd8 R08: 0000000000000000 R09: 0000000000000000
[   46.303225][  T530] R10: ffffc90000d37008 R11: ffffffff9e18d1e0 R12: 1ffff920001a6de2
[   46.303696][  T530] R13: 00000000000005dc R14: ffffc90000d37008 R15: ffff888005cc2f48
[   46.304164][  T530] FS:  00007f6478a67800(0000) GS:ffff8880cd199000(0000) knlGS:0000000000000000
[   46.304699][  T530] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.305104][  T530] CR2: 00000000004e6888 CR3: 000000000c7c7006 CR4: 0000000000772ef0
[   46.305593][  T530] PKRU: 55555554
[   46.305818][  T530] Call Trace:
[   46.306056][  T530]  <TASK>
[ 46.306237][ T530] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 46.306560][ T530] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 46.306889][ T530] netif_set_mtu (net/core/dev.c:9652) 
[ 46.307200][ T530] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 46.307515][ T530] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 46.307742][ T530] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 46.308073][ T530] br_add_if (net/bridge/br_if.c:697) 
[ 46.308333][ T530] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 46.308649][ T530] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 46.308951][ T530] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 46.309361][ T530] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 46.309667][ T530] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 46.309959][ T530] ? __kernel_text_address (kernel/extable.c:79) 
[ 46.310321][ T530] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 46.310636][ T530] ? __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) 
[ 46.310933][ T530] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 46.311364][ T530] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 46.311681][ T530] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 46.311978][ T530] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 46.312298][ T530] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 46.312626][ T530] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 46.312932][ T530] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 46.313255][ T530] ? __create_object (mm/kmemleak.c:771) 
[ 46.313555][ T530] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 46.313861][ T530] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 46.314160][ T530] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 46.314538][ T530] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 46.314856][ T530] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 46.315187][ T530] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 46.315490][ T530] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 46.315801][ T530] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 46.316104][ T530] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 46.316421][ T530] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 46.316721][ T530] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 46.317018][ T530] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 46.317351][ T530] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 46.317660][ T530] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 46.317960][ T530] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 46.318267][ T530] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 46.318583][ T530] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 46.318892][ T530] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 46.319207][ T530] ? 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) 
[ 46.319516][ T530] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 46.319821][ T530] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 46.320122][ T530] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 46.320430][ T530] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 46.320728][ T530] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 46.321029][ T530] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 46.321370][ T530] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 46.321669][ T530] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 46.321986][ T530] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 46.322387][ T530] ___sys_sendmsg (net/socket.c:2670) 
[ 46.322687][ T530] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 46.322988][ T530] ? __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) 
[ 46.323372][ T530] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 46.323683][ T530] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 46.323981][ T530] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 46.324301][ T530] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 46.324595][ T530] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 46.324906][ T530] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 46.325228][ T530] __sys_sendmsg (net/socket.c:2700) 
[ 46.325522][ T530] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 46.325895][ T530] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 46.326215][ T530] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 46.326537][ T530] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 46.326845][ T530] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   46.327234][  T530] RIP: 0033:0x7f6478c341e7
[ 46.327540][ T530] 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)
[   46.328612][  T530] RSP: 002b:00007fff3f8b6268 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   46.329064][  T530] RAX: ffffffffffffffda RBX: 00007fff3f8b69a0 RCX: 00007f6478c341e7
[   46.329525][  T530] RDX: 0000000000000000 RSI: 00007fff3f8b62d0 RDI: 0000000000000005
[   46.329966][  T530] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   46.330432][  T530] R10: 0000000013323910 R11: 0000000000000246 R12: 0000000000000004
[   46.330887][  T530] R13: 00000000686e71a2 R14: 0000000000499600 R15: 0000000000000000
| [   46.602098][  T532] ------------[ cut here ]------------
| [ 46.602429][ T532] WARNING: CPU: 2 PID: 532 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) 
| [   46.603035][  T532] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   46.604228][  T532] Tainted: [W]=WARN
[   46.604471][  T532] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 46.604864][ T532] 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) 
[ 46.605199][ T532] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   46.606312][  T532] RSP: 0018:ffffc90000d47080 EFLAGS: 00010246
[   46.606707][  T532] RAX: 0000000000000000 RBX: ffff888005cc2000 RCX: 0000000000000001
[   46.607185][  T532] RDX: 0000000000000000 RSI: ffffffff9d710751 RDI: ffffffff9ce58280
[   46.607652][  T532] RBP: ffffc90000d47168 R08: 0000000000000000 R09: 0000000000000000
[   46.608125][  T532] R10: ffffc90000d47198 R11: ffffffff9eaceab8 R12: 1ffff920001a8e14
[   46.608623][  T532] R13: 00000000000005dc R14: ffffc90000d47198 R15: ffff888005cc2f48
[   46.609088][  T532] FS:  00007f216bb65800(0000) GS:ffff8880cd299000(0000) knlGS:0000000000000000
[   46.609641][  T532] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.610045][  T532] CR2: 000000000043d940 CR3: 000000000f2e0006 CR4: 0000000000772ef0
[   46.610523][  T532] PKRU: 55555554
[   46.610767][  T532] Call Trace:
[   46.611008][  T532]  <TASK>
[ 46.611204][ T532] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 46.611527][ T532] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 46.611845][ T532] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 46.612258][ T532] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 46.612589][ T532] netif_set_mtu (net/core/dev.c:9652) 
[ 46.612910][ T532] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 46.613257][ T532] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 46.613653][ T532] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 46.613898][ T532] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 46.614230][ T532] br_add_if (net/bridge/br_if.c:697) 
[ 46.614486][ T532] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 46.614805][ T532] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 46.615125][ T532] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 46.615456][ T532] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 46.615771][ T532] ? __dev_get_by_name (net/core/dev.c:865) 
[ 46.616091][ T532] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 46.616431][ T532] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 46.616756][ T532] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 46.617070][ T532] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 46.617408][ T532] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 46.617737][ T532] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 46.618064][ T532] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 46.618404][ T532] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 46.618718][ T532] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 46.619035][ T532] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 46.619362][ T532] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 46.619685][ T532] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 46.620005][ T532] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 46.620352][ T532] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 46.620672][ T532] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 46.620988][ T532] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 46.621376][ T532] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 46.621699][ T532] ? 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) 
[ 46.622026][ T532] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 46.622357][ T532] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 46.622673][ T532] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 46.622994][ T532] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 46.623325][ T532] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 46.623642][ T532] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 46.623966][ T532] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 46.624309][ T532] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 46.624632][ T532] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 46.625039][ T532] ___sys_sendmsg (net/socket.c:2670) 
[ 46.625367][ T532] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 46.625684][ T532] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 46.626005][ T532] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 46.626331][ T532] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 46.626656][ T532] ? __handle_mm_fault (mm/memory.c:6212) 
[ 46.626971][ T532] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 46.627296][ T532] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 46.627631][ T532] __sys_sendmsg (net/socket.c:2700) 
[ 46.627948][ T532] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 46.628284][ T532] ? 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) 
[ 46.628613][ T532] ? 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) 
[ 46.628940][ T532] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 46.629273][ T532] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 46.629590][ T532] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   46.629979][  T532] RIP: 0033:0x7f216bd321e7
[ 46.630318][ T532] 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)
[   46.631442][  T532] RSP: 002b:00007ffcb5272ce8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   46.631919][  T532] RAX: ffffffffffffffda RBX: 00007ffcb5273420 RCX: 00007f216bd321e7
[   46.632412][  T532] RDX: 0000000000000000 RSI: 00007ffcb5272d50 RDI: 0000000000000005
[   46.632878][  T532] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   46.633362][  T532] R10: 00007f216bdc0ac0 R11: 0000000000000246 R12: 00007ffcb5273458
[   46.633831][  T532] R13: 00000000686e71a3 R14: 0000000000499600 R15: 00007ffcb5272e40
| [   74.100927][  T777] ------------[ cut here ]------------
| [ 74.101283][ T777] WARNING: CPU: 2 PID: 777 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) 
| [   74.101894][  T777] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   74.103096][  T777] Tainted: [W]=WARN
[   74.103360][  T777] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 74.103756][ T777] 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) 
[ 74.104079][ T777] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   74.105230][  T777] RSP: 0018:ffffc90001336ef0 EFLAGS: 00010246
[   74.105638][  T777] RAX: 0000000000000000 RBX: ffff88800e34a000 RCX: 0000000000000001
[   74.106115][  T777] RDX: 0000000000000000 RSI: ffffffff9d710751 RDI: ffffffff9ce58280
[   74.106588][  T777] RBP: ffffc90001336fd8 R08: 0000000000000000 R09: 0000000000000000
[   74.107052][  T777] R10: ffffc90001337008 R11: ffffffff9e18d1e0 R12: 1ffff92000266de2
[   74.107536][  T777] R13: 00000000000005dc R14: ffffc90001337008 R15: ffff88800e34af48
[   74.107995][  T777] FS:  00007fb9969f1800(0000) GS:ffff8880cd299000(0000) knlGS:0000000000000000
[   74.108558][  T777] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   74.108939][  T777] CR2: 00000000004e6888 CR3: 000000000f2cb005 CR4: 0000000000772ef0
[   74.109420][  T777] PKRU: 55555554
[   74.109656][  T777] Call Trace:
[   74.109890][  T777]  <TASK>
[ 74.110065][ T777] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 74.110390][ T777] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 74.110723][ T777] netif_set_mtu (net/core/dev.c:9652) 
[ 74.111031][ T777] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 74.111393][ T777] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 74.111640][ T777] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 74.111959][ T777] br_add_if (net/bridge/br_if.c:697) 
[ 74.112222][ T777] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 74.112565][ T777] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 74.112901][ T777] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 74.113338][ T777] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 74.113656][ T777] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 74.113959][ T777] ? __kernel_text_address (kernel/extable.c:79) 
[ 74.114283][ T777] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 74.114592][ T777] ? __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) 
[ 74.114907][ T777] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 74.115322][ T777] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 74.115635][ T777] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 74.115939][ T777] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 74.116261][ T777] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 74.116569][ T777] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 74.116876][ T777] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 74.117190][ T777] ? __create_object (mm/kmemleak.c:771) 
[ 74.117510][ T777] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 74.117822][ T777] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 74.118126][ T777] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 74.118517][ T777] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 74.118829][ T777] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 74.119141][ T777] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 74.119466][ T777] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 74.119780][ T777] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 74.120088][ T777] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 74.120414][ T777] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 74.120721][ T777] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 74.121027][ T777] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 74.121365][ T777] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 74.121677][ T777] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 74.121985][ T777] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 74.122304][ T777] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 74.122618][ T777] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 74.122937][ T777] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 74.123260][ T777] ? 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) 
[ 74.123569][ T777] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 74.123876][ T777] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 74.124192][ T777] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 74.124506][ T777] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 74.124828][ T777] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 74.125132][ T777] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 74.125505][ T777] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 74.125816][ T777] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 74.126120][ T777] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 74.126521][ T777] ___sys_sendmsg (net/socket.c:2670) 
[ 74.126825][ T777] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 74.127135][ T777] ? __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) 
[ 74.127523][ T777] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 74.127832][ T777] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 74.128141][ T777] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 74.128465][ T777] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 74.128773][ T777] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 74.129077][ T777] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 74.129407][ T777] __sys_sendmsg (net/socket.c:2700) 
[ 74.129710][ T777] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 74.130085][ T777] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 74.130417][ T777] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 74.130727][ T777] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 74.131033][ T777] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   74.131426][  T777] RIP: 0033:0x7fb996bbe1e7
[ 74.131743][ T777] 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)
[   74.132818][  T777] RSP: 002b:00007ffca1940e48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   74.133287][  T777] RAX: ffffffffffffffda RBX: 00007ffca1941580 RCX: 00007fb996bbe1e7
[   74.133745][  T777] RDX: 0000000000000000 RSI: 00007ffca1940eb0 RDI: 0000000000000005
[   74.134208][  T777] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   74.134659][  T777] R10: 000000000249f910 R11: 0000000000000246 R12: 0000000000000004
[   74.135118][  T777] R13: 00000000686e71be R14: 0000000000499600 R15: 0000000000000000
| [   74.386354][  T779] ------------[ cut here ]------------
| [ 74.386663][ T779] WARNING: CPU: 0 PID: 779 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) 
| [   74.387286][  T779] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   74.388396][  T779] Tainted: [W]=WARN
[   74.388658][  T779] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 74.389053][ T779] 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) 
[ 74.389390][ T779] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   74.390675][  T779] RSP: 0018:ffffc90001357080 EFLAGS: 00010246
[   74.391065][  T779] RAX: 0000000000000000 RBX: ffff88800e34a000 RCX: 0000000000000001
[   74.391544][  T779] RDX: 0000000000000000 RSI: ffffffff9d710751 RDI: ffffffff9ce58280
[   74.391998][  T779] RBP: ffffc90001357168 R08: 0000000000000000 R09: 0000000000000000
[   74.392501][  T779] R10: ffffc90001357198 R11: ffffffff9e18d1e0 R12: 1ffff9200026ae14
[   74.392963][  T779] R13: 00000000000005dc R14: ffffc90001357198 R15: ffff88800e34af48
[   74.393435][  T779] FS:  00007fc4c08da800(0000) GS:ffff8880cd199000(0000) knlGS:0000000000000000
[   74.393979][  T779] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   74.394382][  T779] CR2: 000055572a97cdec CR3: 000000000f2cb005 CR4: 0000000000772ef0
[   74.394854][  T779] PKRU: 55555554
[   74.395093][  T779] Call Trace:
[   74.395343][  T779]  <TASK>
[ 74.395502][ T779] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 74.395815][ T779] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 74.396138][ T779] netif_set_mtu (net/core/dev.c:9652) 
[ 74.396494][ T779] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 74.396842][ T779] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 74.397093][ T779] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 74.397461][ T779] br_add_if (net/bridge/br_if.c:697) 
[ 74.397734][ T779] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 74.398066][ T779] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 74.398409][ T779] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 74.398732][ T779] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 74.399213][ T779] ? __dev_get_by_name (net/core/dev.c:865) 
[ 74.399532][ T779] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 74.399846][ T779] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 74.400155][ T779] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 74.400481][ T779] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 74.400791][ T779] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 74.401117][ T779] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 74.401494][ T779] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 74.401812][ T779] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 74.402119][ T779] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 74.402444][ T779] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 74.402752][ T779] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 74.403063][ T779] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 74.403391][ T779] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 74.403708][ T779] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 74.404042][ T779] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 74.404373][ T779] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 74.404709][ T779] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 74.405025][ T779] ? 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) 
[ 74.405370][ T779] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 74.405707][ T779] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 74.406027][ T779] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 74.406370][ T779] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 74.406680][ T779] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 74.406982][ T779] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 74.407305][ T779] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 74.407611][ T779] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 74.407910][ T779] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 74.408308][ T779] ___sys_sendmsg (net/socket.c:2670) 
[ 74.408623][ T779] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 74.408924][ T779] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 74.409251][ T779] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 74.409559][ T779] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 74.409864][ T779] ? __handle_mm_fault (mm/memory.c:6212) 
[ 74.410164][ T779] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 74.410497][ T779] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 74.410816][ T779] __sys_sendmsg (net/socket.c:2700) 
[ 74.411116][ T779] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 74.411446][ T779] ? 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) 
[ 74.411755][ T779] ? 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) 
[ 74.412056][ T779] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 74.412375][ T779] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 74.412679][ T779] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   74.413067][  T779] RIP: 0033:0x7fc4c0aa71e7
[ 74.413410][ T779] 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)
[   74.414514][  T779] RSP: 002b:00007ffc1cdf2138 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   74.414999][  T779] RAX: ffffffffffffffda RBX: 00007ffc1cdf2870 RCX: 00007fc4c0aa71e7
[   74.415464][  T779] RDX: 0000000000000000 RSI: 00007ffc1cdf21a0 RDI: 0000000000000005
[   74.415913][  T779] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   74.416374][  T779] R10: 00007fc4c0b35ac0 R11: 0000000000000246 R12: 00007ffc1cdf28a8
[   74.416847][  T779] R13: 00000000686e71be R14: 0000000000499600 R15: 00007ffc1cdf2290
| [   76.010701][  T792] ------------[ cut here ]------------
| [ 76.011021][ T792] WARNING: CPU: 2 PID: 792 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   76.011649][  T792] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   76.012861][  T792] Tainted: [W]=WARN
[   76.013103][  T792] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 76.013507][ T792] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 76.013830][ T792] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   76.014915][  T792] RSP: 0018:ffffc90001406ef0 EFLAGS: 00010246
[   76.015312][  T792] RAX: 0000000000000000 RBX: ffff88800c132000 RCX: 0000000000000001
[   76.015763][  T792] RDX: 0000000000000000 RSI: ffffffff9d710751 RDI: ffffffff9ce58280
[   76.016246][  T792] RBP: ffffc90001406fd8 R08: 0000000000000000 R09: 0000000000000000
[   76.016701][  T792] R10: ffffc90001407008 R11: ffffffff9e18d1e0 R12: 1ffff92000280de2
[   76.017153][  T792] R13: 00000000000005dc R14: ffffc90001407008 R15: ffff88800c132f48
[   76.017618][  T792] FS:  00007fea9203f800(0000) GS:ffff8880cd299000(0000) knlGS:0000000000000000
[   76.018148][  T792] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   76.018557][  T792] CR2: 00000000004e6888 CR3: 0000000010f1b001 CR4: 0000000000772ef0
[   76.019019][  T792] PKRU: 55555554
[   76.019408][  T792] Call Trace:
[   76.019777][  T792]  <TASK>
[ 76.020074][ T792] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 76.020530][ T792] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 76.020979][ T792] netif_set_mtu (net/core/dev.c:9652) 
[ 76.021435][ T792] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 76.021761][ T792] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 76.022000][ T792] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 76.022338][ T792] br_add_if (net/bridge/br_if.c:697) 
[ 76.022587][ T792] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 76.022897][ T792] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 76.023219][ T792] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 76.023611][ T792] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 76.023919][ T792] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 76.024237][ T792] ? __kernel_text_address (kernel/extable.c:79) 
[ 76.024551][ T792] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 76.024860][ T792] ? __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) 
[ 76.025178][ T792] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 76.025557][ T792] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 76.025894][ T792] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 76.026226][ T792] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 76.026539][ T792] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 76.026845][ T792] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 76.027150][ T792] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 76.027467][ T792] ? __create_object (mm/kmemleak.c:771) 
[ 76.027773][ T792] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 76.028107][ T792] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 76.028435][ T792] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 76.028815][ T792] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 76.029127][ T792] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 76.029450][ T792] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 76.029754][ T792] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 76.030065][ T792] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 76.030394][ T792] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 76.030705][ T792] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 76.031012][ T792] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 76.031343][ T792] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 76.031651][ T792] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 76.031973][ T792] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 76.032299][ T792] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 76.032609][ T792] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 76.032917][ T792] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 76.033258][ T792] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 76.033563][ T792] ? 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) 
[ 76.033872][ T792] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 76.034196][ T792] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 76.034505][ T792] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 76.034818][ T792] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 76.035157][ T792] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 76.035484][ T792] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 76.035830][ T792] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 76.036138][ T792] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 76.036455][ T792] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 76.036845][ T792] ___sys_sendmsg (net/socket.c:2670) 
[ 76.037151][ T792] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 76.037468][ T792] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 76.037854][ T792] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 76.038177][ T792] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 76.038489][ T792] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 76.038804][ T792] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 76.039112][ T792] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 76.039455][ T792] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 76.039779][ T792] __sys_sendmsg (net/socket.c:2700) 
[ 76.040090][ T792] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 76.040478][ T792] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 76.040799][ T792] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 76.041111][ T792] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 76.041442][ T792] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   76.041826][  T792] RIP: 0033:0x7fea9220c1e7
[ 76.042142][ T792] 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)
[   76.043216][  T792] RSP: 002b:00007ffc1a634f68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   76.043674][  T792] RAX: ffffffffffffffda RBX: 00007ffc1a6356a0 RCX: 00007fea9220c1e7
[   76.044855][  T792] RDX: 0000000000000000 RSI: 00007ffc1a634fd0 RDI: 0000000000000005
[   76.045327][  T792] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   76.045787][  T792] R10: 00000000312d3910 R11: 0000000000000246 R12: 0000000000000004
[   76.047146][  T792] R13: 00000000686e71c0 R14: 0000000000499600 R15: 0000000000000000
| [   76.359910][  T794] ------------[ cut here ]------------
| [ 76.360449][ T794] WARNING: CPU: 0 PID: 794 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   76.361052][  T794] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   76.362195][  T794] Tainted: [W]=WARN
[   76.362428][  T794] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 76.362812][ T794] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 76.363132][ T794] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   76.364246][  T794] RSP: 0018:ffffc90001307080 EFLAGS: 00010246
[   76.364635][  T794] RAX: 0000000000000000 RBX: ffff88800c132000 RCX: 0000000000000001
[   76.365095][  T794] RDX: 0000000000000000 RSI: ffffffff9d710751 RDI: ffffffff9ce58280
[   76.365569][  T794] RBP: ffffc90001307168 R08: 0000000000000000 R09: 0000000000000000
[   76.366029][  T794] R10: ffffc90001307198 R11: ffffffff9e18d1e0 R12: 1ffff92000260e14
[   76.366500][  T794] R13: 00000000000005dc R14: ffffc90001307198 R15: ffff88800c132f48
[   76.366960][  T794] FS:  00007f7802d36800(0000) GS:ffff8880cd199000(0000) knlGS:0000000000000000
[   76.367499][  T794] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   76.367885][  T794] CR2: 000000000043d940 CR3: 0000000010662003 CR4: 0000000000772ef0
[   76.368355][  T794] PKRU: 55555554
[   76.368583][  T794] Call Trace:
[   76.368808][  T794]  <TASK>
[ 76.368966][ T794] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 76.369281][ T794] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 76.369599][ T794] netif_set_mtu (net/core/dev.c:9652) 
[ 76.369906][ T794] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 76.370234][ T794] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 76.370473][ T794] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 76.370781][ T794] br_add_if (net/bridge/br_if.c:697) 
[ 76.371021][ T794] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 76.371345][ T794] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 76.371660][ T794] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 76.371966][ T794] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 76.372292][ T794] ? __dev_get_by_name (net/core/dev.c:865) 
[ 76.372601][ T794] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 76.372908][ T794] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 76.373228][ T794] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 76.373538][ T794] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 76.373849][ T794] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 76.374166][ T794] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 76.374499][ T794] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 76.374816][ T794] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 76.375128][ T794] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 76.375447][ T794] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 76.375748][ T794] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 76.376052][ T794] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 76.376370][ T794] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 76.376680][ T794] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 76.376983][ T794] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 76.377295][ T794] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 76.377617][ T794] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 76.377919][ T794] ? 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) 
[ 76.378233][ T794] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 76.378539][ T794] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 76.378844][ T794] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 76.379150][ T794] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 76.379468][ T794] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 76.379780][ T794] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 76.380089][ T794] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 76.380406][ T794] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 76.380709][ T794] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 76.381095][ T794] ___sys_sendmsg (net/socket.c:2670) 
[ 76.381422][ T794] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 76.381727][ T794] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 76.382070][ T794] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 76.382380][ T794] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 76.382701][ T794] ? __handle_mm_fault (mm/memory.c:6212) 
[ 76.383005][ T794] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 76.383316][ T794] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 76.383640][ T794] __sys_sendmsg (net/socket.c:2700) 
[ 76.383948][ T794] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 76.384264][ T794] ? 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) 
[ 76.384576][ T794] ? 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) 
[ 76.384895][ T794] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 76.385219][ T794] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 76.385539][ T794] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   76.385915][  T794] RIP: 0033:0x7f7802f031e7
[ 76.386260][ T794] 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)
[   76.387389][  T794] RSP: 002b:00007fff066d1398 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   76.387847][  T794] RAX: ffffffffffffffda RBX: 00007fff066d1ad0 RCX: 00007f7802f031e7
[   76.388328][  T794] RDX: 0000000000000000 RSI: 00007fff066d1400 RDI: 0000000000000005
[   76.388782][  T794] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   76.389243][  T794] R10: 00007f7802f91ac0 R11: 0000000000000246 R12: 00007fff066d1b08
[   76.389698][  T794] R13: 00000000686e71c0 R14: 0000000000499600 R15: 00007fff066d14f0
| [  100.192915][ T1014] ------------[ cut here ]------------
| [ 100.193251][ T1014] WARNING: CPU: 1 PID: 1014 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) 
| [  100.193843][ T1014] Modules linked in: cls_matchall act_gact cls_flower sch_ingress vxlan
| [  100.194959][ T1014] Tainted: [W]=WARN
[  100.195223][ T1014] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 100.195604][ T1014] 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) 
[ 100.195931][ T1014] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  100.197030][ T1014] RSP: 0018:ffffc90000d46ef0 EFLAGS: 00010246
[  100.197427][ T1014] RAX: 0000000000000000 RBX: ffff88800b48a000 RCX: 0000000000000001
[  100.197879][ T1014] RDX: 0000000000000000 RSI: ffffffff9d710751 RDI: ffffffff9ce58280
[  100.198347][ T1014] RBP: ffffc90000d46fd8 R08: 0000000000000000 R09: 0000000000000000
[  100.198828][ T1014] R10: ffffc90000d47008 R11: ffffffff9e18d1e0 R12: 1ffff920001a8de2
[  100.199302][ T1014] R13: 00000000000005dc R14: ffffc90000d47008 R15: ffff88800b48af48
[  100.199745][ T1014] FS:  00007f03ccd0d800(0000) GS:ffff8880cd219000(0000) knlGS:0000000000000000
[  100.200293][ T1014] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  100.200679][ T1014] CR2: 00007f810430f000 CR3: 000000000db3f002 CR4: 0000000000772ef0
[  100.201145][ T1014] PKRU: 55555554
[  100.201397][ T1014] Call Trace:
[  100.201620][ T1014]  <TASK>
[ 100.201774][ T1014] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 100.202088][ T1014] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 100.202410][ T1014] netif_set_mtu (net/core/dev.c:9652) 
[ 100.202714][ T1014] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 100.203026][ T1014] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 100.203275][ T1014] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 100.203576][ T1014] br_add_if (net/bridge/br_if.c:697) 
[ 100.203810][ T1014] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 100.204114][ T1014] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 100.204435][ T1014] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 100.204811][ T1014] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 100.205113][ T1014] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 100.205434][ T1014] ? __kernel_text_address (kernel/extable.c:79) 
[ 100.205734][ T1014] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 100.206034][ T1014] ? __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) 
[ 100.206355][ T1014] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 100.206722][ T1014] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 100.207018][ T1014] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 100.207346][ T1014] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 100.207646][ T1014] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 100.207945][ T1014] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 100.208263][ T1014] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 100.208559][ T1014] ? __create_object (mm/kmemleak.c:771) 
[ 100.208856][ T1014] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 100.209151][ T1014] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 100.209482][ T1014] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 100.209856][ T1014] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 100.210159][ T1014] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 100.210482][ T1014] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 100.210780][ T1014] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 100.211081][ T1014] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 100.211415][ T1014] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 100.211710][ T1014] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 100.212014][ T1014] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 100.212324][ T1014] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 100.212632][ T1014] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 100.212931][ T1014] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 100.213240][ T1014] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 100.213547][ T1014] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 100.213844][ T1014] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 100.214157][ T1014] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 100.214475][ T1014] ? 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) 
[ 100.214772][ T1014] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 100.215070][ T1014] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 100.215375][ T1014] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 100.215692][ T1014] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 100.215993][ T1014] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 100.216311][ T1014] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 100.216628][ T1014] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 100.216927][ T1014] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 100.217227][ T1014] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 100.217620][ T1014] ___sys_sendmsg (net/socket.c:2670) 
[ 100.217912][ T1014] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 100.218215][ T1014] ? __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) 
[ 100.218605][ T1014] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 100.218903][ T1014] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 100.219212][ T1014] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 100.219537][ T1014] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 100.219833][ T1014] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 100.220126][ T1014] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 100.220439][ T1014] __sys_sendmsg (net/socket.c:2700) 
[ 100.220747][ T1014] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 100.221119][ T1014] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 100.221447][ T1014] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 100.221760][ T1014] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 100.222059][ T1014] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  100.222441][ T1014] RIP: 0033:0x7f03cceda1e7
[ 100.222767][ T1014] 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)
[  100.223857][ T1014] RSP: 002b:00007ffde164a698 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  100.224316][ T1014] RAX: ffffffffffffffda RBX: 00007ffde164add0 RCX: 00007f03cceda1e7
[  100.224772][ T1014] RDX: 0000000000000000 RSI: 00007ffde164a700 RDI: 0000000000000005
[  100.225228][ T1014] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  100.225680][ T1014] R10: 000000001d5d8910 R11: 0000000000000246 R12: 0000000000000004
[  100.226153][ T1014] R13: 00000000686e71d8 R14: 0000000000499600 R15: 0000000000000000
| [  100.473946][ T1016] ------------[ cut here ]------------
| [ 100.474257][ T1016] WARNING: CPU: 3 PID: 1016 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) 
| [  100.474854][ T1016] Modules linked in: cls_matchall act_gact cls_flower sch_ingress vxlan
| [  100.475952][ T1016] Tainted: [W]=WARN
[  100.476190][ T1016] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 100.476568][ T1016] 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) 
[ 100.476877][ T1016] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  100.477969][ T1016] RSP: 0018:ffffc90000d67080 EFLAGS: 00010246
[  100.478365][ T1016] RAX: 0000000000000000 RBX: ffff88800b48a000 RCX: 0000000000000001
[  100.478818][ T1016] RDX: 0000000000000000 RSI: ffffffff9d710751 RDI: ffffffff9ce58280
[  100.479296][ T1016] RBP: ffffc90000d67168 R08: 0000000000000000 R09: 0000000000000000
[  100.479756][ T1016] R10: ffffc90000d67198 R11: ffffffff9eaceab8 R12: 1ffff920001ace14
[  100.480314][ T1016] R13: 00000000000005dc R14: ffffc90000d67198 R15: ffff88800b48af48
[  100.480767][ T1016] FS:  00007f247ab29800(0000) GS:ffff8880cd319000(0000) knlGS:0000000000000000
[  100.481311][ T1016] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  100.481699][ T1016] CR2: 000000000043d940 CR3: 000000000b5dc006 CR4: 0000000000772ef0
[  100.482186][ T1016] PKRU: 55555554
[  100.482414][ T1016] Call Trace:
[  100.482638][ T1016]  <TASK>
[ 100.482796][ T1016] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 100.483102][ T1016] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 100.483414][ T1016] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 100.483798][ T1016] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 100.484104][ T1016] netif_set_mtu (net/core/dev.c:9652) 
[ 100.484417][ T1016] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 100.484730][ T1016] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 100.485120][ T1016] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 100.485357][ T1016] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 100.485690][ T1016] br_add_if (net/bridge/br_if.c:697) 
[ 100.485928][ T1016] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 100.486242][ T1016] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 100.486547][ T1016] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 100.486852][ T1016] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 100.487149][ T1016] ? __dev_get_by_name (net/core/dev.c:865) 
[ 100.487461][ T1016] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 100.487765][ T1016] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 100.488073][ T1016] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 100.488387][ T1016] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 100.488696][ T1016] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 100.489008][ T1016] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 100.489350][ T1016] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 100.489663][ T1016] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 100.489962][ T1016] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 100.490273][ T1016] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 100.490577][ T1016] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 100.490891][ T1016] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 100.491215][ T1016] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 100.491526][ T1016] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 100.491833][ T1016] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 100.492134][ T1016] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 100.492456][ T1016] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 100.492758][ T1016] ? 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) 
[ 100.493068][ T1016] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 100.493383][ T1016] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 100.493683][ T1016] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 100.493990][ T1016] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 100.494304][ T1016] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 100.494632][ T1016] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 100.494969][ T1016] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 100.495293][ T1016] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 100.495596][ T1016] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 100.495986][ T1016] ___sys_sendmsg (net/socket.c:2670) 
[ 100.496301][ T1016] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 100.496612][ T1016] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 100.496917][ T1016] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 100.497235][ T1016] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 100.497554][ T1016] ? __handle_mm_fault (mm/memory.c:6212) 
[ 100.497861][ T1016] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 100.498163][ T1016] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 100.498497][ T1016] __sys_sendmsg (net/socket.c:2700) 
[ 100.498822][ T1016] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 100.499126][ T1016] ? 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) 
[ 100.499456][ T1016] ? 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) 
[ 100.499763][ T1016] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 100.500067][ T1016] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 100.500379][ T1016] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  100.500756][ T1016] RIP: 0033:0x7f247acf61e7
[ 100.501069][ T1016] 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)
[  100.502174][ T1016] RSP: 002b:00007ffe79df3648 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  100.502633][ T1016] RAX: ffffffffffffffda RBX: 00007ffe79df3d80 RCX: 00007f247acf61e7
[  100.503085][ T1016] RDX: 0000000000000000 RSI: 00007ffe79df36b0 RDI: 0000000000000005
[  100.503545][ T1016] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  100.504005][ T1016] R10: 00007f247ad84ac0 R11: 0000000000000246 R12: 00007ffe79df3db8
[  100.504468][ T1016] R13: 00000000686e71d8 R14: 0000000000499600 R15: 00007ffe79df37a0
| [  102.122905][ T1029] ------------[ cut here ]------------
| [ 102.123262][ T1029] WARNING: CPU: 2 PID: 1029 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) 
| [  102.123867][ T1029] Modules linked in: cls_matchall act_gact cls_flower sch_ingress vxlan
| [  102.124975][ T1029] Tainted: [W]=WARN
[  102.125221][ T1029] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 102.125600][ T1029] 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) 
[ 102.125916][ T1029] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  102.126987][ T1029] RSP: 0018:ffffc90000e06ef0 EFLAGS: 00010246
[  102.127391][ T1029] RAX: 0000000000000000 RBX: ffff88800d60a000 RCX: 0000000000000001
[  102.127842][ T1029] RDX: 0000000000000000 RSI: ffffffff9d710751 RDI: ffffffff9ce58280
[  102.128321][ T1029] RBP: ffffc90000e06fd8 R08: 0000000000000000 R09: 0000000000000000
[  102.128778][ T1029] R10: ffffc90000e07008 R11: ffffffff9e18d1e0 R12: 1ffff920001c0de2
[  102.129241][ T1029] R13: 00000000000005dc R14: ffffc90000e07008 R15: ffff88800d60af48
[  102.129693][ T1029] FS:  00007ff30b8c4800(0000) GS:ffff8880cd299000(0000) knlGS:0000000000000000
[  102.130227][ T1029] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  102.130617][ T1029] CR2: 00000000004e6888 CR3: 000000000b5dc005 CR4: 0000000000772ef0
[  102.131073][ T1029] PKRU: 55555554
[  102.131378][ T1029] Call Trace:
[  102.131615][ T1029]  <TASK>
[ 102.131781][ T1029] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 102.132087][ T1029] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 102.132420][ T1029] netif_set_mtu (net/core/dev.c:9652) 
[ 102.132733][ T1029] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 102.133057][ T1029] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 102.133304][ T1029] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 102.133616][ T1029] br_add_if (net/bridge/br_if.c:697) 
[ 102.133861][ T1029] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 102.134197][ T1029] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 102.134733][ T1029] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 102.135326][ T1029] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 102.135689][ T1029] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 102.136001][ T1029] ? __kernel_text_address (kernel/extable.c:79) 
[ 102.136327][ T1029] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 102.136638][ T1029] ? __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) 
[ 102.136945][ T1029] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 102.137334][ T1029] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 102.137642][ T1029] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 102.137957][ T1029] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 102.138274][ T1029] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 102.138587][ T1029] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 102.138892][ T1029] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 102.139219][ T1029] ? __create_object (mm/kmemleak.c:771) 
[ 102.139528][ T1029] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 102.139840][ T1029] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 102.140152][ T1029] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 102.140545][ T1029] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 102.140863][ T1029] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 102.141204][ T1029] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 102.141542][ T1029] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 102.141874][ T1029] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 102.142192][ T1029] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 102.142501][ T1029] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 102.142813][ T1029] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 102.143119][ T1029] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 102.143448][ T1029] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 102.143769][ T1029] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 102.144081][ T1029] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 102.144399][ T1029] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 102.144708][ T1029] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 102.145033][ T1029] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 102.145352][ T1029] ? 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) 
[ 102.145661][ T1029] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 102.145972][ T1029] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 102.146289][ T1029] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 102.146602][ T1029] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 102.146913][ T1029] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 102.147246][ T1029] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 102.147568][ T1029] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 102.147878][ T1029] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 102.148212][ T1029] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 102.148605][ T1029] ___sys_sendmsg (net/socket.c:2670) 
[ 102.148911][ T1029] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 102.149240][ T1029] ? __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) 
[ 102.149628][ T1029] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 102.149940][ T1029] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 102.150262][ T1029] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 102.150576][ T1029] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 102.150882][ T1029] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 102.151241][ T1029] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 102.151572][ T1029] __sys_sendmsg (net/socket.c:2700) 
[ 102.151882][ T1029] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 102.152279][ T1029] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 102.152599][ T1029] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 102.152907][ T1029] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 102.153227][ T1029] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  102.153605][ T1029] RIP: 0033:0x7ff30ba911e7
[ 102.153923][ T1029] 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)
[  102.154998][ T1029] RSP: 002b:00007ffe1d4c5978 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  102.155479][ T1029] RAX: ffffffffffffffda RBX: 00007ffe1d4c60b0 RCX: 00007ff30ba911e7
[  102.155935][ T1029] RDX: 0000000000000000 RSI: 00007ffe1d4c59e0 RDI: 0000000000000005
[  102.156410][ T1029] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  102.156864][ T1029] R10: 000000000d186910 R11: 0000000000000246 R12: 0000000000000004
[  102.157327][ T1029] R13: 00000000686e71da R14: 0000000000499600 R15: 0000000000000000
| [  102.411270][ T1031] ------------[ cut here ]------------
| [ 102.411600][ T1031] WARNING: CPU: 0 PID: 1031 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) 
| [  102.412209][ T1031] Modules linked in: cls_matchall act_gact cls_flower sch_ingress vxlan
| [  102.413384][ T1031] Tainted: [W]=WARN
[  102.413635][ T1031] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 102.414011][ T1031] 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) 
[ 102.414544][ T1031] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  102.415873][ T1031] RSP: 0018:ffffc90000e27080 EFLAGS: 00010246
[  102.416477][ T1031] RAX: 0000000000000000 RBX: ffff88800d60a000 RCX: 0000000000000001
[  102.416934][ T1031] RDX: 0000000000000000 RSI: ffffffff9d710751 RDI: ffffffff9ce58280
[  102.417561][ T1031] RBP: ffffc90000e27168 R08: 0000000000000000 R09: 0000000000000000
[  102.418018][ T1031] R10: ffffc90000e27198 R11: ffffffff9e18d1e0 R12: 1ffff920001c4e14
[  102.418639][ T1031] R13: 00000000000005dc R14: ffffc90000e27198 R15: ffff88800d60af48
[  102.419093][ T1031] FS:  00007f9ec4ad8800(0000) GS:ffff8880cd199000(0000) knlGS:0000000000000000
[  102.419692][ T1031] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  102.420074][ T1031] CR2: 000000000043d940 CR3: 000000000cf71006 CR4: 0000000000772ef0
[  102.420562][ T1031] PKRU: 55555554
[  102.420791][ T1031] Call Trace:
[  102.421017][ T1031]  <TASK>
[ 102.421208][ T1031] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 102.421539][ T1031] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 102.421857][ T1031] netif_set_mtu (net/core/dev.c:9652) 
[ 102.422160][ T1031] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 102.422493][ T1031] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 102.422742][ T1031] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 102.423054][ T1031] br_add_if (net/bridge/br_if.c:697) 
[ 102.423305][ T1031] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 102.423626][ T1031] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 102.423935][ T1031] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 102.424254][ T1031] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 102.424557][ T1031] ? __dev_get_by_name (net/core/dev.c:865) 
[ 102.424876][ T1031] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 102.425204][ T1031] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 102.425523][ T1031] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 102.425840][ T1031] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 102.426148][ T1031] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 102.426472][ T1031] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 102.426805][ T1031] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 102.427157][ T1031] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 102.427466][ T1031] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 102.427800][ T1031] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 102.428103][ T1031] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 102.428416][ T1031] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 102.428739][ T1031] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 102.429048][ T1031] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 102.429371][ T1031] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 102.429678][ T1031] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 102.430012][ T1031] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 102.430327][ T1031] ? 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) 
[ 102.430636][ T1031] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 102.430960][ T1031] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 102.431284][ T1031] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 102.431594][ T1031] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 102.431916][ T1031] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 102.432236][ T1031] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 102.432548][ T1031] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 102.432868][ T1031] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 102.433192][ T1031] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 102.433593][ T1031] ___sys_sendmsg (net/socket.c:2670) 
[ 102.433914][ T1031] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 102.434233][ T1031] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 102.434543][ T1031] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 102.434855][ T1031] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 102.435161][ T1031] ? __handle_mm_fault (mm/memory.c:6212) 
[ 102.435474][ T1031] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 102.435775][ T1031] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 102.436107][ T1031] __sys_sendmsg (net/socket.c:2700) 
[ 102.436419][ T1031] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 102.436724][ T1031] ? 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) 
[ 102.437046][ T1031] ? 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) 
[ 102.437372][ T1031] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 102.437683][ T1031] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 102.437998][ T1031] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  102.438383][ T1031] RIP: 0033:0x7f9ec4ca51e7
[ 102.438697][ T1031] 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)
[  102.439804][ T1031] RSP: 002b:00007ffebc7668a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  102.440280][ T1031] RAX: ffffffffffffffda RBX: 00007ffebc766fe0 RCX: 00007f9ec4ca51e7
[  102.440733][ T1031] RDX: 0000000000000000 RSI: 00007ffebc766910 RDI: 0000000000000005
[  102.441236][ T1031] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  102.441690][ T1031] R10: 00007f9ec4d33ac0 R11: 0000000000000246 R12: 00007ffebc767018
[  102.442159][ T1031] R13: 00000000686e71da R14: 0000000000499600 R15: 00007ffebc766a00
| [  123.625211][ T1159] ------------[ cut here ]------------
| [ 123.625525][ T1159] WARNING: CPU: 3 PID: 1159 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) 
| [  123.626112][ T1159] Modules linked in: cls_matchall act_gact cls_flower sch_ingress vxlan
| [  123.627889][ T1159] Tainted: [W]=WARN
[  123.628119][ T1159] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 123.628522][ T1159] 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) 
[ 123.628831][ T1159] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  123.629919][ T1159] RSP: 0018:ffffc900012f6ef0 EFLAGS: 00010246
[  123.630304][ T1159] RAX: 0000000000000000 RBX: ffff88800e34a000 RCX: 0000000000000001
[  123.630750][ T1159] RDX: 0000000000000000 RSI: ffffffff9d710751 RDI: ffffffff9ce58280
[  123.631232][ T1159] RBP: ffffc900012f6fd8 R08: 0000000000000000 R09: 0000000000000000
[  123.631695][ T1159] R10: ffffc900012f7008 R11: ffffffff9e18d1e0 R12: 1ffff9200025ede2
[  123.632138][ T1159] R13: 00000000000005dc R14: ffffc900012f7008 R15: ffff88800e34af48
[  123.632596][ T1159] FS:  00007ff41f07b800(0000) GS:ffff8880cd319000(0000) knlGS:0000000000000000
[  123.633130][ T1159] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  123.633516][ T1159] CR2: 00000000004e6888 CR3: 0000000010c51005 CR4: 0000000000772ef0
[  123.633962][ T1159] PKRU: 55555554
[  123.634196][ T1159] Call Trace:
[  123.634417][ T1159]  <TASK>
[ 123.634571][ T1159] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 123.634868][ T1159] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 123.635206][ T1159] netif_set_mtu (net/core/dev.c:9652) 
[ 123.635504][ T1159] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 123.635816][ T1159] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 123.636038][ T1159] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 123.636345][ T1159] br_add_if (net/bridge/br_if.c:697) 
[ 123.636580][ T1159] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 123.636879][ T1159] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 123.637195][ T1159] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 123.637569][ T1159] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 123.637865][ T1159] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 123.638159][ T1159] ? __kernel_text_address (kernel/extable.c:79) 
[ 123.638467][ T1159] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 123.638766][ T1159] ? __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) 
[ 123.639072][ T1159] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 123.639468][ T1159] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 123.639767][ T1159] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 123.640061][ T1159] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 123.640364][ T1159] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 123.640663][ T1159] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 123.640964][ T1159] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 123.641278][ T1159] ? __create_object (mm/kmemleak.c:771) 
[ 123.641573][ T1159] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 123.641875][ T1159] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 123.642180][ T1159] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 123.642548][ T1159] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 123.642849][ T1159] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 123.643147][ T1159] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 123.643462][ T1159] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 123.643763][ T1159] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 123.644064][ T1159] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 123.644368][ T1159] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 123.644666][ T1159] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 123.644965][ T1159] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 123.645269][ T1159] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 123.645572][ T1159] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 123.645872][ T1159] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 123.646179][ T1159] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 123.646483][ T1159] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 123.646788][ T1159] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 123.647083][ T1159] ? 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) 
[ 123.647399][ T1159] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 123.647696][ T1159] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 123.647990][ T1159] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 123.648298][ T1159] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 123.648601][ T1159] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 123.648893][ T1159] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 123.649208][ T1159] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 123.649507][ T1159] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 123.649799][ T1159] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 123.650199][ T1159] ___sys_sendmsg (net/socket.c:2670) 
[ 123.650495][ T1159] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 123.650793][ T1159] ? __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) 
[ 123.651163][ T1159] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 123.651508][ T1159] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 123.651805][ T1159] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 123.652108][ T1159] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 123.652410][ T1159] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 123.652704][ T1159] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 123.653017][ T1159] __sys_sendmsg (net/socket.c:2700) 
[ 123.653320][ T1159] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 123.653685][ T1159] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 123.653992][ T1159] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 123.654298][ T1159] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 123.654593][ T1159] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  123.654962][ T1159] RIP: 0033:0x7ff41f2481e7
[ 123.655293][ T1159] 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)
[  123.656364][ T1159] RSP: 002b:00007ffd05f27618 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  123.656806][ T1159] RAX: ffffffffffffffda RBX: 00007ffd05f27d50 RCX: 00007ff41f2481e7
[  123.657260][ T1159] RDX: 0000000000000000 RSI: 00007ffd05f27680 RDI: 0000000000000005
[  123.657700][ T1159] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  123.658139][ T1159] R10: 00000000100e6910 R11: 0000000000000246 R12: 0000000000000004
[  123.658589][ T1159] R13: 00000000686e71f0 R14: 0000000000499600 R15: 0000000000000000
| [  123.913600][ T1161] ------------[ cut here ]------------
| [ 123.913923][ T1161] WARNING: CPU: 0 PID: 1161 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) 
| [  123.914537][ T1161] Modules linked in: cls_matchall act_gact cls_flower sch_ingress vxlan
| [  123.915653][ T1161] Tainted: [W]=WARN
[  123.915884][ T1161] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 123.916270][ T1161] 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) 
[ 123.916579][ T1161] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  123.917668][ T1161] RSP: 0018:ffffc90001307080 EFLAGS: 00010246
[  123.918050][ T1161] RAX: 0000000000000000 RBX: ffff88800e34a000 RCX: 0000000000000001
[  123.918505][ T1161] RDX: 0000000000000000 RSI: ffffffff9d710751 RDI: ffffffff9ce58280
[  123.918956][ T1161] RBP: ffffc90001307168 R08: 0000000000000000 R09: 0000000000000000
[  123.919430][ T1161] R10: ffffc90001307198 R11: ffffffff9e18d1e0 R12: 1ffff92000260e14
[  123.919892][ T1161] R13: 00000000000005dc R14: ffffc90001307198 R15: ffff88800e34af48
[  123.920349][ T1161] FS:  00007f7ddd21f800(0000) GS:ffff8880cd199000(0000) knlGS:0000000000000000
[  123.920875][ T1161] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  123.921275][ T1161] CR2: 000000000043d940 CR3: 000000000c7ce004 CR4: 0000000000772ef0
[  123.921728][ T1161] PKRU: 55555554
[  123.921955][ T1161] Call Trace:
[  123.922193][ T1161]  <TASK>
[ 123.922351][ T1161] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 123.922652][ T1161] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 123.922966][ T1161] netif_set_mtu (net/core/dev.c:9652) 
[ 123.923285][ T1161] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 123.923608][ T1161] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 123.923838][ T1161] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 123.924143][ T1161] br_add_if (net/bridge/br_if.c:697) 
[ 123.924390][ T1161] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 123.924689][ T1161] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 123.924996][ T1161] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 123.925309][ T1161] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 123.925612][ T1161] ? __dev_get_by_name (net/core/dev.c:865) 
[ 123.925913][ T1161] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 123.926221][ T1161] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 123.926527][ T1161] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 123.926826][ T1161] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 123.927132][ T1161] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 123.927463][ T1161] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 123.927772][ T1161] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 123.928091][ T1161] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 123.928397][ T1161] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 123.928700][ T1161] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 123.928999][ T1161] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 123.929313][ T1161] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 123.929619][ T1161] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 123.929927][ T1161] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 123.930235][ T1161] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 123.930542][ T1161] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 123.930853][ T1161] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 123.931152][ T1161] ? 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) 
[ 123.931484][ T1161] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 123.931793][ T1161] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 123.932093][ T1161] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 123.932410][ T1161] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 123.932721][ T1161] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 123.933023][ T1161] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 123.933340][ T1161] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 123.933644][ T1161] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 123.933943][ T1161] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 123.934341][ T1161] ? debug_object_activate (lib/debugobjects.c:837) 
[ 123.934645][ T1161] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 123.934955][ T1161] ___sys_sendmsg (net/socket.c:2670) 
[ 123.935283][ T1161] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 123.935590][ T1161] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 123.935889][ T1161] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 123.936206][ T1161] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 123.936513][ T1161] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 123.936816][ T1161] ? clockevents_program_event (kernel/time/clockevents.c:326) 
[ 123.937126][ T1161] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 123.937446][ T1161] __sys_sendmsg (net/socket.c:2700) 
[ 123.937748][ T1161] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 123.938045][ T1161] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3)) 
[ 123.938442][ T1161] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 123.938750][ T1161] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 123.939052][ T1161] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  123.939448][ T1161] RIP: 0033:0x7f7ddd3ec1e7
[ 123.939767][ T1161] 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)
[  123.940847][ T1161] RSP: 002b:00007ffc4318afc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  123.941319][ T1161] RAX: ffffffffffffffda RBX: 00007ffc4318b700 RCX: 00007f7ddd3ec1e7
[  123.941774][ T1161] RDX: 0000000000000000 RSI: 00007ffc4318b030 RDI: 0000000000000005
[  123.942230][ T1161] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  123.942682][ T1161] R10: 00007f7ddd47aac0 R11: 0000000000000246 R12: 00007ffc4318b738
[  123.943137][ T1161] R13: 00000000686e71f0 R14: 0000000000499600 R15: 00007ffc4318b120
| [  125.489608][ T1174] ------------[ cut here ]------------
| [ 125.489943][ T1174] WARNING: CPU: 3 PID: 1174 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) 
| [  125.490584][ T1174] Modules linked in: cls_matchall act_gact cls_flower sch_ingress vxlan
| [  125.491721][ T1174] Tainted: [W]=WARN
[  125.491960][ T1174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 125.492356][ T1174] 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) 
[ 125.492684][ T1174] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  125.493805][ T1174] RSP: 0018:ffffc900013b6ef0 EFLAGS: 00010246
[  125.494208][ T1174] RAX: 0000000000000000 RBX: ffff88800ab6a000 RCX: 0000000000000001
[  125.494683][ T1174] RDX: 0000000000000000 RSI: ffffffff9d710751 RDI: ffffffff9ce58280
[  125.495147][ T1174] RBP: ffffc900013b6fd8 R08: 0000000000000000 R09: 0000000000000000
[  125.495627][ T1174] R10: ffffc900013b7008 R11: ffffffff9e18d1e0 R12: 1ffff92000276de2
[  125.496095][ T1174] R13: 00000000000005dc R14: ffffc900013b7008 R15: ffff88800ab6af48
[  125.496576][ T1174] FS:  00007f4f36b03800(0000) GS:ffff8880cd319000(0000) knlGS:0000000000000000
[  125.497135][ T1174] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  125.497538][ T1174] CR2: 00000000004e6888 CR3: 000000000e273004 CR4: 0000000000772ef0
[  125.498014][ T1174] PKRU: 55555554
[  125.498265][ T1174] Call Trace:
[  125.498500][ T1174]  <TASK>
[ 125.498664][ T1174] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 125.498987][ T1174] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.499323][ T1174] netif_set_mtu (net/core/dev.c:9652) 
[ 125.499638][ T1174] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 125.499967][ T1174] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 125.500232][ T1174] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 125.500549][ T1174] br_add_if (net/bridge/br_if.c:697) 
[ 125.500795][ T1174] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 125.501110][ T1174] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 125.501449][ T1174] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 125.501842][ T1174] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 125.502154][ T1174] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 125.502473][ T1174] ? __kernel_text_address (kernel/extable.c:79) 
[ 125.502788][ T1174] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.503104][ T1174] ? __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) 
[ 125.503427][ T1174] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 125.503819][ T1174] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 125.504140][ T1174] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 125.504466][ T1174] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 125.504780][ T1174] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 125.505089][ T1174] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 125.505411][ T1174] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 125.505721][ T1174] ? __create_object (mm/kmemleak.c:771) 
[ 125.506041][ T1174] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 125.506361][ T1174] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 125.506673][ T1174] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 125.507058][ T1174] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 125.507389][ T1174] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 125.507706][ T1174] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 125.508016][ T1174] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.508342][ T1174] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 125.508660][ T1174] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 125.508967][ T1174] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 125.509286][ T1174] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 125.509596][ T1174] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 125.509906][ T1174] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 125.510235][ T1174] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.510550][ T1174] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 125.510859][ T1174] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 125.511192][ T1174] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 125.511528][ T1174] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 125.511838][ T1174] ? 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) 
[ 125.512148][ T1174] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 125.512473][ T1174] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 125.512785][ T1174] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.513112][ T1174] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 125.513438][ T1174] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 125.513770][ T1174] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 125.514087][ T1174] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 125.514413][ T1174] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 125.514722][ T1174] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 125.515125][ T1174] ___sys_sendmsg (net/socket.c:2670) 
[ 125.515445][ T1174] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 125.515758][ T1174] ? __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) 
[ 125.516144][ T1174] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 125.516469][ T1174] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 125.516784][ T1174] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.517103][ T1174] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 125.517427][ T1174] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 125.517738][ T1174] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 125.518061][ T1174] __sys_sendmsg (net/socket.c:2700) 
[ 125.518381][ T1174] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 125.518764][ T1174] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 125.519084][ T1174] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 125.519406][ T1174] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 125.519718][ T1174] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  125.520101][ T1174] RIP: 0033:0x7f4f36cd01e7
[ 125.520437][ T1174] 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)
[  125.521552][ T1174] RSP: 002b:00007ffea6c71858 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  125.522015][ T1174] RAX: ffffffffffffffda RBX: 00007ffea6c71f90 RCX: 00007f4f36cd01e7
[  125.522490][ T1174] RDX: 0000000000000000 RSI: 00007ffea6c718c0 RDI: 0000000000000005
[  125.522951][ T1174] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  125.523423][ T1174] R10: 0000000034f87910 R11: 0000000000000246 R12: 0000000000000004
[  125.523884][ T1174] R13: 00000000686e71f1 R14: 0000000000499600 R15: 0000000000000000
| [  125.790744][ T1176] ------------[ cut here ]------------
| [ 125.791059][ T1176] WARNING: CPU: 2 PID: 1176 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) 
| [  125.791701][ T1176] Modules linked in: cls_matchall act_gact cls_flower sch_ingress vxlan
| [  125.792849][ T1176] Tainted: [W]=WARN
[  125.793092][ T1176] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 125.793496][ T1176] 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) 
[ 125.793823][ T1176] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  125.794983][ T1176] RSP: 0018:ffffc900013d7080 EFLAGS: 00010246
[  125.795394][ T1176] RAX: 0000000000000000 RBX: ffff88800ab6a000 RCX: 0000000000000001
[  125.795862][ T1176] RDX: 0000000000000000 RSI: ffffffff9d710751 RDI: ffffffff9ce58280
[  125.796342][ T1176] RBP: ffffc900013d7168 R08: 0000000000000000 R09: 0000000000000000
[  125.796807][ T1176] R10: ffffc900013d7198 R11: ffffffff9eaceab8 R12: 1ffff9200027ae14
[  125.797281][ T1176] R13: 00000000000005dc R14: ffffc900013d7198 R15: ffff88800ab6af48
[  125.797751][ T1176] FS:  00007f2a02c1b800(0000) GS:ffff8880cd299000(0000) knlGS:0000000000000000
[  125.798307][ T1176] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  125.798701][ T1176] CR2: 000000000043d940 CR3: 000000000c0cc003 CR4: 0000000000772ef0
[  125.799180][ T1176] PKRU: 55555554
[  125.799424][ T1176] Call Trace:
[  125.799666][ T1176]  <TASK>
[ 125.799836][ T1176] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 125.800161][ T1176] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 125.800495][ T1176] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 125.800888][ T1176] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 125.801243][ T1176] netif_set_mtu (net/core/dev.c:9652) 
[ 125.801580][ T1176] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 125.801906][ T1176] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 125.802311][ T1176] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 125.802556][ T1176] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 125.802883][ T1176] br_add_if (net/bridge/br_if.c:697) 
[ 125.803136][ T1176] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 125.803460][ T1176] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 125.803780][ T1176] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 125.804096][ T1176] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 125.804422][ T1176] ? __dev_get_by_name (net/core/dev.c:865) 
[ 125.804745][ T1176] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 125.805061][ T1176] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 125.805398][ T1176] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 125.805712][ T1176] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 125.806033][ T1176] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 125.806376][ T1176] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 125.806698][ T1176] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 125.807027][ T1176] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 125.807351][ T1176] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 125.807675][ T1176] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 125.807990][ T1176] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 125.808318][ T1176] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 125.808639][ T1176] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.808961][ T1176] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 125.809284][ T1176] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 125.809600][ T1176] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 125.809927][ T1176] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 125.810260][ T1176] ? 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) 
[ 125.810578][ T1176] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 125.810898][ T1176] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 125.811233][ T1176] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.811559][ T1176] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 125.811879][ T1176] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 125.812207][ T1176] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 125.812539][ T1176] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 125.812859][ T1176] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 125.813185][ T1176] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 125.813592][ T1176] ___sys_sendmsg (net/socket.c:2670) 
[ 125.813912][ T1176] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 125.814241][ T1176] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 125.814564][ T1176] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 125.814885][ T1176] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 125.815216][ T1176] ? __handle_mm_fault (mm/memory.c:6212) 
[ 125.815531][ T1176] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 125.815852][ T1176] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 125.816197][ T1176] __sys_sendmsg (net/socket.c:2700) 
[ 125.816517][ T1176] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 125.816836][ T1176] ? 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) 
[ 125.817162][ T1176] ? 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) 
[ 125.817490][ T1176] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 125.817811][ T1176] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 125.818127][ T1176] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  125.818524][ T1176] RIP: 0033:0x7f2a02de81e7
[ 125.818848][ T1176] 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)
[  125.819952][ T1176] RSP: 002b:00007ffed7036ba8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  125.820431][ T1176] RAX: ffffffffffffffda RBX: 00007ffed70372e0 RCX: 00007f2a02de81e7
[  125.820895][ T1176] RDX: 0000000000000000 RSI: 00007ffed7036c10 RDI: 0000000000000005
[  125.821389][ T1176] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  125.821858][ T1176] R10: 00007f2a02e76ac0 R11: 0000000000000246 R12: 00007ffed7037318


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