======================================
| [   18.884230][  T310] br0: port 1(swp1) entered forwarding state
| [   18.886336][  T310] ------------[ cut here ]------------
| [ 18.886668][ T310] WARNING: CPU: 2 PID: 310 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) 
| [   18.887298][  T310] Modules linked in:
[   18.888180][  T310] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.888573][ T310] 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) 
[ 18.888903][ T310] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   18.890046][  T310] RSP: 0018:ffffc90000e66ef0 EFLAGS: 00010246
[   18.890468][  T310] RAX: 0000000000000000 RBX: ffff8880091f2000 RCX: 0000000000000001
[   18.890949][  T310] RDX: 0000000000000000 RSI: ffffffff95510759 RDI: ffffffff94c58280
[   18.891435][  T310] RBP: ffffc90000e66fd8 R08: 0000000000000000 R09: 0000000000000000
[   18.891901][  T310] R10: ffffc90000e67008 R11: ffffffff95f8d1e0 R12: 1ffff920001ccde2
[   18.892383][  T310] R13: 00000000000005dc R14: ffffc90000e67008 R15: ffff8880091f2f48
[   18.892866][  T310] FS:  00007f7ca0d12800(0000) GS:ffff8880d5499000(0000) knlGS:0000000000000000
[   18.893447][  T310] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.893844][  T310] CR2: 00000000004e6888 CR3: 00000000091bd005 CR4: 0000000000772ef0
[   18.894330][  T310] PKRU: 55555554
[   18.894572][  T310] Call Trace:
[   18.894815][  T310]  <TASK>
[ 18.894989][ T310] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.895323][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.895650][ T310] netif_set_mtu (net/core/dev.c:9652) 
[ 18.895965][ T310] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.896309][ T310] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.896553][ T310] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 18.896871][ T310] br_add_if (net/bridge/br_if.c:697) 
[ 18.897134][ T310] do_set_master (net/core/rtnetlink.c:2948) 
[ 18.897461][ T310] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 18.897778][ T310] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 18.898187][ T310] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.898501][ T310] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.898811][ T310] ? __kernel_text_address (kernel/extable.c:79) 
[ 18.899143][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.899469][ T310] ? __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) 
[ 18.899785][ T310] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 18.900189][ T310] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.900507][ T310] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.900829][ T310] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 18.901154][ T310] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 18.901473][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.901787][ T310] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.902112][ T310] ? __create_object (mm/kmemleak.c:771) 
[ 18.902435][ T310] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 18.902759][ T310] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 18.903073][ T310] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.903470][ T310] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 18.903793][ T310] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.904124][ T310] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.904437][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.904761][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.905077][ T310] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.905402][ T310] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.905719][ T310] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.906032][ T310] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.906358][ T310] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.906679][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.907005][ T310] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.907339][ T310] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.907656][ T310] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.907980][ T310] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.908304][ T310] ? 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) 
[ 18.908619][ T310] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 18.908936][ T310] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.909258][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.909585][ T310] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.909902][ T310] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.910225][ T310] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.910546][ T310] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.910864][ T310] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.911187][ T310] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.911589][ T310] ___sys_sendmsg (net/socket.c:2670) 
[ 18.911903][ T310] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 18.912225][ T310] ? __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) 
[ 18.912613][ T310] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.912939][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.913265][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.913585][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.913899][ T310] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 18.914227][ T310] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.914547][ T310] __sys_sendmsg (net/socket.c:2700) 
[ 18.914858][ T310] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 18.915255][ T310] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.915581][ T310] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.915896][ T310] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.916224][ T310] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.916609][  T310] RIP: 0033:0x7f7ca0edf1e7
[ 18.916941][ T310] 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)
[   18.918032][  T310] RSP: 002b:00007ffc1f5fcdc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.918511][  T310] RAX: ffffffffffffffda RBX: 00007ffc1f5fd500 RCX: 00007f7ca0edf1e7
[   18.918981][  T310] RDX: 0000000000000000 RSI: 00007ffc1f5fce30 RDI: 0000000000000005
[   18.919462][  T310] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   18.919928][  T310] R10: 000000000325f910 R11: 0000000000000246 R12: 0000000000000004
[   18.920404][  T310] R13: 00000000686e290f R14: 0000000000499600 R15: 0000000000000000
| [   19.329594][  T312] ------------[ cut here ]------------
| [ 19.329907][ T312] WARNING: CPU: 3 PID: 312 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) 
| [   19.330771][  T312] Modules linked in: vxlan
| [   19.331765][  T312] Tainted: [W]=WARN
[   19.332004][  T312] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.332397][ T312] 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) 
[ 19.332727][ T312] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   19.333841][  T312] RSP: 0018:ffffc90000e87080 EFLAGS: 00010246
[   19.334238][  T312] RAX: 0000000000000000 RBX: ffff8880091f2000 RCX: 0000000000000001
[   19.334778][  T312] RDX: 0000000000000000 RSI: ffffffff95510759 RDI: ffffffff94c58280
[   19.335250][  T312] RBP: ffffc90000e87168 R08: 0000000000000000 R09: 0000000000000000
[   19.335709][  T312] R10: ffffc90000e87198 R11: ffffffff95f8d1e0 R12: 1ffff920001d0e14
[   19.336176][  T312] R13: 00000000000005dc R14: ffffc90000e87198 R15: ffff8880091f2f48
[   19.336633][  T312] FS:  00007fb530381800(0000) GS:ffff8880d5519000(0000) knlGS:0000000000000000
[   19.337180][  T312] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.337569][  T312] CR2: 00007f03e07de780 CR3: 000000000f1b0003 CR4: 0000000000772ef0
[   19.338031][  T312] PKRU: 55555554
[   19.338267][  T312] Call Trace:
[   19.338497][  T312]  <TASK>
[ 19.338655][ T312] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.338972][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.339301][ T312] netif_set_mtu (net/core/dev.c:9652) 
[ 19.339608][ T312] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.339930][ T312] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.340171][ T312] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 19.340484][ T312] br_add_if (net/bridge/br_if.c:697) 
[ 19.340728][ T312] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.341033][ T312] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 19.341357][ T312] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 19.341669][ T312] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 19.341974][ T312] ? __dev_get_by_name (net/core/dev.c:865) 
[ 19.342290][ T312] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 19.342597][ T312] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 19.342916][ T312] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.343230][ T312] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 19.343548][ T312] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 19.343867][ T312] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.344189][ T312] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.344507][ T312] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.344811][ T312] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.345129][ T312] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.345436][ T312] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.345745][ T312] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.346061][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.346381][ T312] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.346690][ T312] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.346998][ T312] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.347328][ T312] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.347633][ T312] ? 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) 
[ 19.347943][ T312] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 19.348277][ T312] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.348585][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.348894][ T312] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.349215][ T312] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.349522][ T312] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.349837][ T312] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.350156][ T312] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.350464][ T312] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.350857][ T312] ___sys_sendmsg (net/socket.c:2670) 
[ 19.351174][ T312] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.351481][ T312] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 19.351792][ T312] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 19.352095][ T312] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 19.352419][ T312] ? __handle_mm_fault (mm/memory.c:6212) 
[ 19.352740][ T312] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 19.353045][ T312] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 19.353384][ T312] __sys_sendmsg (net/socket.c:2700) 
[ 19.353692][ T312] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.353996][ T312] ? 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) 
[ 19.354318][ T312] ? 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) 
[ 19.354654][ T312] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.354978][ T312] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.355299][ T312] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.355680][  T312] RIP: 0033:0x7fb53054e1e7
[ 19.356001][ T312] Code: Unable to access opcode bytes at 0x7fb53054e1bd.

Code starting with the faulting instruction
===========================================
[   19.356405][  T312] RSP: 002b:00007fffd6d918f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.356865][  T312] RAX: ffffffffffffffda RBX: 00007fffd6d92030 RCX: 00007fb53054e1e7
[   19.357335][  T312] RDX: 0000000000000000 RSI: 00007fffd6d91960 RDI: 0000000000000005
[   19.357791][  T312] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   19.358262][  T312] R10: 00007fb5305dcac0 R11: 0000000000000246 R12: 00007fffd6d92068
[   19.358719][  T312] R13: 00000000686e290f R14: 0000000000499600 R15: 00007fffd6d91a50
| [   20.864625][  T326] ------------[ cut here ]------------
| [ 20.864951][ T326] WARNING: CPU: 2 PID: 326 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) 
| [   20.865573][  T326] Modules linked in: vxlan
| [   20.866533][  T326] Tainted: [W]=WARN
[   20.866776][  T326] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.867173][ T326] 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) 
[ 20.867495][ T326] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   20.868606][  T326] RSP: 0018:ffffc900005a6ef0 EFLAGS: 00010246
[   20.869000][  T326] RAX: 0000000000000000 RBX: ffff88800c072000 RCX: 0000000000000001
[   20.869487][  T326] RDX: 0000000000000000 RSI: ffffffff95510759 RDI: ffffffff94c58280
[   20.869949][  T326] RBP: ffffc900005a6fd8 R08: 0000000000000000 R09: 0000000000000000
[   20.870426][  T326] R10: ffffc900005a7008 R11: ffffffff95f8d1e0 R12: 1ffff920000b4de2
[   20.870894][  T326] R13: 00000000000005dc R14: ffffc900005a7008 R15: ffff88800c072f48
[   20.871367][  T326] FS:  00007f83fa9a4800(0000) GS:ffff8880d5499000(0000) knlGS:0000000000000000
[   20.871908][  T326] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.872311][  T326] CR2: 00000000004e6888 CR3: 00000000175fa004 CR4: 0000000000772ef0
[   20.872793][  T326] PKRU: 55555554
[   20.873034][  T326] Call Trace:
[   20.873280][  T326]  <TASK>
[ 20.873450][ T326] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.873766][ T326] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.874093][ T326] netif_set_mtu (net/core/dev.c:9652) 
[ 20.874418][ T326] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.874745][ T326] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.874992][ T326] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 20.875317][ T326] br_add_if (net/bridge/br_if.c:697) 
[ 20.875571][ T326] do_set_master (net/core/rtnetlink.c:2948) 
[ 20.875887][ T326] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 20.876217][ T326] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 20.876613][ T326] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 20.876927][ T326] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 20.877250][ T326] ? __kernel_text_address (kernel/extable.c:79) 
[ 20.877572][ T326] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.877886][ T326] ? __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) 
[ 20.878217][ T326] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 20.878604][ T326] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.878921][ T326] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.879246][ T326] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 20.879563][ T326] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 20.879882][ T326] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.880206][ T326] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.880520][ T326] ? __create_object (mm/kmemleak.c:771) 
[ 20.880835][ T326] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 20.881160][ T326] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 20.881477][ T326] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 20.881865][ T326] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 20.882198][ T326] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.882521][ T326] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.882840][ T326] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.883172][ T326] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.883486][ T326] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.883799][ T326] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.884122][ T326] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.884444][ T326] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.884764][ T326] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.885084][ T326] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.885414][ T326] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.885731][ T326] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.886053][ T326] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.886389][ T326] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.886702][ T326] ? 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) 
[ 20.887024][ T326] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 20.887351][ T326] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.887665][ T326] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.887983][ T326] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.888320][ T326] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.888637][ T326] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.888959][ T326] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.889287][ T326] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.889598][ T326] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.890027][ T326] ___sys_sendmsg (net/socket.c:2670) 
[ 20.890358][ T326] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 20.890677][ T326] ? __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) 
[ 20.891082][ T326] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.891413][ T326] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.891734][ T326] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.892055][ T326] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.892385][ T326] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 20.892699][ T326] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.893027][ T326] __sys_sendmsg (net/socket.c:2700) 
[ 20.893348][ T326] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 20.893734][ T326] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.894065][ T326] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.894392][ T326] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.894710][ T326] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.895093][  T326] RIP: 0033:0x7f83fab711e7
[ 20.895428][ T326] 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)
[   20.896525][  T326] RSP: 002b:00007ffc530177b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.896995][  T326] RAX: ffffffffffffffda RBX: 00007ffc53017ef0 RCX: 00007f83fab711e7
[   20.897467][  T326] RDX: 0000000000000000 RSI: 00007ffc53017820 RDI: 0000000000000005
[   20.897935][  T326] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   20.898411][  T326] R10: 000000000204b910 R11: 0000000000000246 R12: 0000000000000004
[   20.898877][  T326] R13: 00000000686e2911 R14: 0000000000499600 R15: 0000000000000000
| [   21.138711][  T328] ------------[ cut here ]------------
| [ 21.139043][ T328] WARNING: CPU: 2 PID: 328 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) 
| [   21.139700][  T328] Modules linked in: vxlan
| [   21.140689][  T328] Tainted: [W]=WARN
[   21.140938][  T328] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 21.141345][ T328] 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) 
[ 21.141682][ T328] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   21.142825][  T328] RSP: 0018:ffffc900005c7080 EFLAGS: 00010246
[   21.143254][  T328] RAX: 0000000000000000 RBX: ffff88800c072000 RCX: 0000000000000001
[   21.143731][  T328] RDX: 0000000000000000 RSI: ffffffff95510759 RDI: ffffffff94c58280
[   21.145074][  T328] RBP: ffffc900005c7168 R08: 0000000000000000 R09: 0000000000000000
[   21.145570][  T328] R10: ffffc900005c7198 R11: ffffffff95f8d1e0 R12: 1ffff920000b8e14
[   21.146041][  T328] R13: 00000000000005dc R14: ffffc900005c7198 R15: ffff88800c072f48
[   21.146524][  T328] FS:  00007f1892efc800(0000) GS:ffff8880d5499000(0000) knlGS:0000000000000000
[   21.147077][  T328] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.147506][  T328] CR2: 000000000043d940 CR3: 0000000017604006 CR4: 0000000000772ef0
[   21.147992][  T328] PKRU: 55555554
[   21.148247][  T328] Call Trace:
[   21.148492][  T328]  <TASK>
[ 21.148666][ T328] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 21.148989][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.149342][ T328] netif_set_mtu (net/core/dev.c:9652) 
[ 21.149663][ T328] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 21.150002][ T328] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 21.150259][ T328] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 21.150587][ T328] br_add_if (net/bridge/br_if.c:697) 
[ 21.150843][ T328] do_set_master (net/core/rtnetlink.c:2948) 
[ 21.151185][ T328] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 21.151517][ T328] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 21.151845][ T328] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 21.152180][ T328] ? __dev_get_by_name (net/core/dev.c:865) 
[ 21.152506][ T328] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 21.152842][ T328] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 21.153179][ T328] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 21.153500][ T328] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 21.153828][ T328] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 21.154167][ T328] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 21.154495][ T328] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 21.154831][ T328] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 21.155171][ T328] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 21.155502][ T328] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 21.155823][ T328] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 21.156155][ T328] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 21.156484][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.156809][ T328] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 21.157145][ T328] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 21.157475][ T328] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 21.157807][ T328] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 21.158139][ T328] ? 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) 
[ 21.158465][ T328] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 21.158791][ T328] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 21.159134][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.159470][ T328] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 21.159807][ T328] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 21.160141][ T328] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 21.160470][ T328] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 21.160793][ T328] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 21.161120][ T328] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 21.161534][ T328] ___sys_sendmsg (net/socket.c:2670) 
[ 21.161857][ T328] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 21.162192][ T328] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 21.162517][ T328] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 21.162853][ T328] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 21.163201][ T328] ? __handle_mm_fault (mm/memory.c:6212) 
[ 21.163524][ T328] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 21.163843][ T328] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 21.164200][ T328] __sys_sendmsg (net/socket.c:2700) 
[ 21.164523][ T328] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 21.164849][ T328] ? 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) 
[ 21.165187][ T328] ? 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) 
[ 21.165510][ T328] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 21.165836][ T328] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 21.166172][ T328] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   21.166572][  T328] RIP: 0033:0x7f18930c91e7
[ 21.166907][ T328] 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)
[   21.168035][  T328] RSP: 002b:00007ffee8cb6598 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   21.168524][  T328] RAX: ffffffffffffffda RBX: 00007ffee8cb6cd0 RCX: 00007f18930c91e7
[   21.169000][  T328] RDX: 0000000000000000 RSI: 00007ffee8cb6600 RDI: 0000000000000005
[   21.169487][  T328] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   21.169963][  T328] R10: 00007f1893157ac0 R11: 0000000000000246 R12: 00007ffee8cb6d08
[   21.170447][  T328] R13: 00000000686e2911 R14: 0000000000499600 R15: 00007ffee8cb66f0
| [   43.075279][  T520] ------------[ cut here ]------------
| [ 43.075583][ T520] WARNING: CPU: 0 PID: 520 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) 
| [   43.076206][  T520] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   43.077282][  T520] Tainted: [W]=WARN
[   43.077508][  T520] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 43.077872][ T520] 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) 
[ 43.078208][ T520] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   43.079274][  T520] RSP: 0018:ffffc90000cd6ef0 EFLAGS: 00010246
[   43.079650][  T520] RAX: 0000000000000000 RBX: ffff88800c612000 RCX: 0000000000000001
[   43.080093][  T520] RDX: 0000000000000000 RSI: ffffffff95510759 RDI: ffffffff94c58280
[   43.080538][  T520] RBP: ffffc90000cd6fd8 R08: 0000000000000000 R09: 0000000000000000
[   43.080982][  T520] R10: ffffc90000cd7008 R11: ffffffff95f8d1e0 R12: 1ffff9200019ade2
[   43.081430][  T520] R13: 00000000000005dc R14: ffffc90000cd7008 R15: ffff88800c612f48
[   43.081871][  T520] FS:  00007f45c6620800(0000) GS:ffff8880d5399000(0000) knlGS:0000000000000000
[   43.082387][  T520] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.082770][  T520] CR2: 00000000004e6888 CR3: 0000000018b41006 CR4: 0000000000772ef0
[   43.083222][  T520] PKRU: 55555554
[   43.083449][  T520] Call Trace:
[   43.083669][  T520]  <TASK>
[ 43.083822][ T520] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 43.084127][ T520] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.084452][ T520] netif_set_mtu (net/core/dev.c:9652) 
[ 43.084747][ T520] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 43.085064][ T520] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 43.085299][ T520] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 43.085611][ T520] br_add_if (net/bridge/br_if.c:697) 
[ 43.085845][ T520] do_set_master (net/core/rtnetlink.c:2948) 
[ 43.086153][ T520] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 43.086454][ T520] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 43.086826][ T520] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 43.087143][ T520] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 43.087437][ T520] ? __kernel_text_address (kernel/extable.c:79) 
[ 43.087750][ T520] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.088046][ T520] ? __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) 
[ 43.088349][ T520] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 43.088716][ T520] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.089013][ T520] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.089313][ T520] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 43.089614][ T520] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 43.089921][ T520] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.090225][ T520] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 43.090517][ T520] ? __create_object (mm/kmemleak.c:771) 
[ 43.090822][ T520] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 43.091128][ T520] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 43.091441][ T520] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 43.091812][ T520] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 43.092147][ T520] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 43.092452][ T520] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 43.092755][ T520] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.093063][ T520] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.093370][ T520] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 43.093661][ T520] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 43.093957][ T520] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 43.094265][ T520] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 43.094560][ T520] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 43.094861][ T520] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.095169][ T520] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 43.095472][ T520] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 43.095768][ T520] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 43.096072][ T520] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 43.096377][ T520] ? 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) 
[ 43.096674][ T520] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 43.096969][ T520] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 43.097270][ T520] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.097568][ T520] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 43.097867][ T520] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 43.098171][ T520] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 43.098483][ T520] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 43.098783][ T520] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 43.099075][ T520] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 43.099461][ T520] ___sys_sendmsg (net/socket.c:2670) 
[ 43.099756][ T520] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 43.100051][ T520] ? __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) 
[ 43.100429][ T520] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 43.100729][ T520] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.101026][ T520] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.101355][ T520] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.101653][ T520] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 43.101955][ T520] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 43.102264][ T520] __sys_sendmsg (net/socket.c:2700) 
[ 43.102557][ T520] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 43.102930][ T520] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 43.103248][ T520] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.103543][ T520] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 43.103843][ T520] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   43.104219][  T520] RIP: 0033:0x7f45c67ed1e7
[ 43.104528][ T520] 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)
[   43.105587][  T520] RSP: 002b:00007ffe74310158 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   43.106028][  T520] RAX: ffffffffffffffda RBX: 00007ffe74310890 RCX: 00007f45c67ed1e7
[   43.106480][  T520] RDX: 0000000000000000 RSI: 00007ffe743101c0 RDI: 0000000000000005
[   43.106921][  T520] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   43.107373][  T520] R10: 0000000015d32910 R11: 0000000000000246 R12: 0000000000000004
[   43.107817][  T520] R13: 00000000686e2927 R14: 0000000000499600 R15: 0000000000000000
| [   43.367273][  T522] ------------[ cut here ]------------
| [ 43.367585][ T522] WARNING: CPU: 3 PID: 522 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) 
| [   43.368399][  T522] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   43.369477][  T522] Tainted: [W]=WARN
[   43.369710][  T522] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 43.370092][ T522] 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) 
[ 43.370412][ T522] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   43.371499][  T522] RSP: 0018:ffffc90000cd7080 EFLAGS: 00010246
[   43.371888][  T522] RAX: 0000000000000000 RBX: ffff88800c612000 RCX: 0000000000000001
[   43.372347][  T522] RDX: 0000000000000000 RSI: ffffffff95510759 RDI: ffffffff94c58280
[   43.372805][  T522] RBP: ffffc90000cd7168 R08: 0000000000000000 R09: 0000000000000000
[   43.373263][  T522] R10: ffffc90000cd7198 R11: ffffffff968ceab8 R12: 1ffff9200019ae14
[   43.373717][  T522] R13: 00000000000005dc R14: ffffc90000cd7198 R15: ffff88800c612f48
[   43.374190][  T522] FS:  00007fb01f837800(0000) GS:ffff8880d5519000(0000) knlGS:0000000000000000
[   43.374715][  T522] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.375093][  T522] CR2: 000000000043d940 CR3: 0000000002801004 CR4: 0000000000772ef0
[   43.375554][  T522] PKRU: 55555554
[   43.375784][  T522] Call Trace:
[   43.376007][  T522]  <TASK>
[ 43.376172][ T522] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 43.376477][ T522] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 43.376780][ T522] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 43.377163][ T522] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 43.377469][ T522] netif_set_mtu (net/core/dev.c:9652) 
[ 43.377769][ T522] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 43.378085][ T522] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 43.378474][ T522] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 43.378703][ T522] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 43.379009][ T522] br_add_if (net/bridge/br_if.c:697) 
[ 43.379257][ T522] do_set_master (net/core/rtnetlink.c:2948) 
[ 43.379557][ T522] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 43.379860][ T522] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 43.380180][ T522] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 43.380481][ T522] ? __dev_get_by_name (net/core/dev.c:865) 
[ 43.380785][ T522] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 43.381084][ T522] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 43.381400][ T522] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 43.381699][ T522] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 43.382004][ T522] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 43.382323][ T522] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 43.382635][ T522] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 43.382957][ T522] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 43.383266][ T522] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 43.383569][ T522] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 43.383870][ T522] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 43.384182][ T522] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 43.384490][ T522] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.384798][ T522] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 43.385115][ T522] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 43.385421][ T522] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 43.385734][ T522] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 43.386036][ T522] ? 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) 
[ 43.386349][ T522] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 43.386655][ T522] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 43.386962][ T522] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.387277][ T522] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 43.387588][ T522] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 43.387893][ T522] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 43.388210][ T522] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 43.388516][ T522] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 43.388816][ T522] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 43.389211][ T522] ___sys_sendmsg (net/socket.c:2670) 
[ 43.389518][ T522] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 43.389819][ T522] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 43.390135][ T522] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 43.390437][ T522] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 43.390743][ T522] ? __handle_mm_fault (mm/memory.c:6212) 
[ 43.391044][ T522] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 43.391354][ T522] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 43.391681][ T522] __sys_sendmsg (net/socket.c:2700) 
[ 43.391986][ T522] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 43.392293][ T522] ? 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) 
[ 43.392601][ T522] ? 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) 
[ 43.392913][ T522] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.393226][ T522] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 43.393535][ T522] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   43.393908][  T522] RIP: 0033:0x7fb01fa041e7
[ 43.394224][ T522] 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)
[   43.395305][  T522] RSP: 002b:00007ffc73c80508 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   43.395763][  T522] RAX: ffffffffffffffda RBX: 00007ffc73c80c40 RCX: 00007fb01fa041e7
[   43.396220][  T522] RDX: 0000000000000000 RSI: 00007ffc73c80570 RDI: 0000000000000005
[   43.396675][  T522] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   43.397133][  T522] R10: 00007fb01fa92ac0 R11: 0000000000000246 R12: 00007ffc73c80c78
[   43.397588][  T522] R13: 00000000686e2927 R14: 0000000000499600 R15: 00007ffc73c80660
| [   44.852532][  T535] ------------[ cut here ]------------
| [ 44.852848][ T535] WARNING: CPU: 0 PID: 535 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) 
| [   44.853443][  T535] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   44.854499][  T535] Tainted: [W]=WARN
[   44.854725][  T535] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 44.855097][ T535] 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) 
[ 44.855413][ T535] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   44.856466][  T535] RSP: 0018:ffffc90000db6ef0 EFLAGS: 00010246
[   44.856839][  T535] RAX: 0000000000000000 RBX: ffff8880027ea000 RCX: 0000000000000001
[   44.857290][  T535] RDX: 0000000000000000 RSI: ffffffff95510759 RDI: ffffffff94c58280
[   44.857727][  T535] RBP: ffffc90000db6fd8 R08: 0000000000000000 R09: 0000000000000000
[   44.858190][  T535] R10: ffffc90000db7008 R11: ffffffff95f8d1e0 R12: 1ffff920001b6de2
[   44.858630][  T535] R13: 00000000000005dc R14: ffffc90000db7008 R15: ffff8880027eaf48
[   44.859114][  T535] FS:  00007f8bb93ab800(0000) GS:ffff8880d5399000(0000) knlGS:0000000000000000
[   44.859631][  T535] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.860001][  T535] CR2: 00000000004e6888 CR3: 00000000176fd001 CR4: 0000000000772ef0
[   44.860462][  T535] PKRU: 55555554
[   44.860684][  T535] Call Trace:
[   44.860904][  T535]  <TASK>
[ 44.861062][ T535] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 44.861366][ T535] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 44.861674][ T535] netif_set_mtu (net/core/dev.c:9652) 
[ 44.861970][ T535] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 44.862288][ T535] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 44.862514][ T535] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 44.862821][ T535] br_add_if (net/bridge/br_if.c:697) 
[ 44.863056][ T535] do_set_master (net/core/rtnetlink.c:2948) 
[ 44.863368][ T535] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 44.863668][ T535] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 44.864044][ T535] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 44.864346][ T535] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 44.864639][ T535] ? __kernel_text_address (kernel/extable.c:79) 
[ 44.864938][ T535] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 44.865259][ T535] ? __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) 
[ 44.865561][ T535] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 44.865927][ T535] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 44.866231][ T535] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 44.866526][ T535] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 44.866819][ T535] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 44.867124][ T535] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 44.867420][ T535] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 44.867716][ T535] ? __create_object (mm/kmemleak.c:771) 
[ 44.868013][ T535] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 44.868317][ T535] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 44.868612][ T535] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 44.868978][ T535] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 44.869286][ T535] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 44.869586][ T535] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 44.869878][ T535] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 44.870190][ T535] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 44.870484][ T535] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 44.870776][ T535] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 44.871077][ T535] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 44.871378][ T535] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 44.871673][ T535] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 44.871970][ T535] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 44.872284][ T535] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 44.872580][ T535] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 44.872885][ T535] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 44.873201][ T535] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 44.873494][ T535] ? 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) 
[ 44.873789][ T535] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 44.874086][ T535] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 44.874392][ T535] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 44.874691][ T535] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 44.874988][ T535] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 44.875292][ T535] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 44.875593][ T535] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 44.875887][ T535] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 44.876187][ T535] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 44.876569][ T535] ___sys_sendmsg (net/socket.c:2670) 
[ 44.876860][ T535] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 44.877159][ T535] ? __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) 
[ 44.877527][ T535] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 44.877824][ T535] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 44.878130][ T535] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 44.878435][ T535] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 44.878730][ T535] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 44.879028][ T535] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 44.879337][ T535] __sys_sendmsg (net/socket.c:2700) 
[ 44.879629][ T535] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 44.879991][ T535] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 44.880306][ T535] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 44.880603][ T535] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 44.880901][ T535] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   44.881277][  T535] RIP: 0033:0x7f8bb95781e7
[ 44.881583][ T535] 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)
[   44.882642][  T535] RSP: 002b:00007fff0c1d8db8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   44.883099][  T535] RAX: ffffffffffffffda RBX: 00007fff0c1d94f0 RCX: 00007f8bb95781e7
[   44.883553][  T535] RDX: 0000000000000000 RSI: 00007fff0c1d8e20 RDI: 0000000000000005
[   44.883994][  T535] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   44.884446][  T535] R10: 000000001f25c910 R11: 0000000000000246 R12: 0000000000000004
[   44.884889][  T535] R13: 00000000686e2929 R14: 0000000000499600 R15: 0000000000000000
| [   45.119328][  T537] ------------[ cut here ]------------
| [ 45.119674][ T537] WARNING: CPU: 2 PID: 537 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) 
| [   45.120334][  T537] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   45.121446][  T537] Tainted: [W]=WARN
[   45.121688][  T537] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 45.122079][ T537] 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) 
[ 45.122417][ T537] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   45.123527][  T537] RSP: 0018:ffffc90000de7080 EFLAGS: 00010246
[   45.123919][  T537] RAX: 0000000000000000 RBX: ffff8880027ea000 RCX: 0000000000000001
[   45.124397][  T537] RDX: 0000000000000000 RSI: ffffffff95510759 RDI: ffffffff94c58280
[   45.124858][  T537] RBP: ffffc90000de7168 R08: 0000000000000000 R09: 0000000000000000
[   45.125335][  T537] R10: ffffc90000de7198 R11: ffffffff95f8d1e0 R12: 1ffff920001bce14
[   45.125797][  T537] R13: 00000000000005dc R14: ffffc90000de7198 R15: ffff8880027eaf48
[   45.126268][  T537] FS:  00007f641fedb800(0000) GS:ffff8880d5499000(0000) knlGS:0000000000000000
[   45.126809][  T537] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   45.127253][  T537] CR2: 000055c595aebdec CR3: 000000000f053003 CR4: 0000000000772ef0
[   45.127718][  T537] PKRU: 55555554
[   45.128039][  T537] Call Trace:
[   45.128308][  T537]  <TASK>
[ 45.128482][ T537] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 45.128803][ T537] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 45.129141][ T537] netif_set_mtu (net/core/dev.c:9652) 
[ 45.129459][ T537] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 45.129788][ T537] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 45.130031][ T537] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 45.130358][ T537] br_add_if (net/bridge/br_if.c:697) 
[ 45.130612][ T537] do_set_master (net/core/rtnetlink.c:2948) 
[ 45.130922][ T537] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 45.131255][ T537] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 45.131578][ T537] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 45.131890][ T537] ? __dev_get_by_name (net/core/dev.c:865) 
[ 45.132216][ T537] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 45.132530][ T537] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 45.132854][ T537] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 45.133175][ T537] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 45.133501][ T537] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 45.133829][ T537] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 45.134155][ T537] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 45.134482][ T537] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 45.134793][ T537] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 45.135116][ T537] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 45.135429][ T537] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 45.135749][ T537] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 45.136073][ T537] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 45.136400][ T537] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 45.136719][ T537] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 45.137154][ T537] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 45.137484][ T537] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 45.137796][ T537] ? 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) 
[ 45.138132][ T537] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 45.138471][ T537] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 45.138790][ T537] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 45.139117][ T537] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 45.139436][ T537] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 45.139748][ T537] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 45.140078][ T537] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 45.140421][ T537] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 45.140741][ T537] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 45.141147][ T537] ___sys_sendmsg (net/socket.c:2670) 
[ 45.141464][ T537] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 45.141775][ T537] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 45.142097][ T537] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 45.142419][ T537] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 45.142742][ T537] ? __handle_mm_fault (mm/memory.c:6212) 
[ 45.143061][ T537] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 45.143383][ T537] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 45.143716][ T537] __sys_sendmsg (net/socket.c:2700) 
[ 45.144031][ T537] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 45.144366][ T537] ? 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) 
[ 45.144700][ T537] ? 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) 
[ 45.145018][ T537] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 45.145360][ T537] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 45.145698][ T537] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   45.146085][  T537] RIP: 0033:0x7f64200a81e7
[ 45.146421][ T537] 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)
[   45.147527][  T537] RSP: 002b:00007ffe016eb708 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   45.148003][  T537] RAX: ffffffffffffffda RBX: 00007ffe016ebe40 RCX: 00007f64200a81e7
[   45.148474][  T537] RDX: 0000000000000000 RSI: 00007ffe016eb770 RDI: 0000000000000005
[   45.148935][  T537] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   45.149414][  T537] R10: 00007f6420136ac0 R11: 0000000000000246 R12: 00007ffe016ebe78
[   45.149884][  T537] R13: 00000000686e2929 R14: 0000000000499600 R15: 00007ffe016eb860
| [   71.388926][  T782] ------------[ cut here ]------------
| [ 71.389270][ T782] WARNING: CPU: 0 PID: 782 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) 
| [   71.389886][  T782] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   71.391076][  T782] Tainted: [W]=WARN
[   71.391345][  T782] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 71.391758][ T782] 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) 
[ 71.392088][ T782] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   71.393238][  T782] RSP: 0018:ffffc900014e6ef0 EFLAGS: 00010246
[   71.393649][  T782] RAX: 0000000000000000 RBX: ffff8880091f2000 RCX: 0000000000000001
[   71.394156][  T782] RDX: 0000000000000000 RSI: ffffffff95510759 RDI: ffffffff94c58280
[   71.394641][  T782] RBP: ffffc900014e6fd8 R08: 0000000000000000 R09: 0000000000000000
[   71.395160][  T782] R10: ffffc900014e7008 R11: ffffffff95f8d1e0 R12: 1ffff9200029cde2
[   71.395636][  T782] R13: 00000000000005dc R14: ffffc900014e7008 R15: ffff8880091f2f48
[   71.396134][  T782] FS:  00007fd39d93c800(0000) GS:ffff8880d5399000(0000) knlGS:0000000000000000
[   71.396726][  T782] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   71.397138][  T782] CR2: 00000000004e6888 CR3: 00000000090e9002 CR4: 0000000000772ef0
[   71.397617][  T782] PKRU: 55555554
[   71.397858][  T782] Call Trace:
[   71.398093][  T782]  <TASK>
[ 71.398280][ T782] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 71.398615][ T782] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 71.398967][ T782] netif_set_mtu (net/core/dev.c:9652) 
[ 71.399300][ T782] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 71.399651][ T782] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 71.399909][ T782] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 71.400256][ T782] br_add_if (net/bridge/br_if.c:697) 
[ 71.400510][ T782] do_set_master (net/core/rtnetlink.c:2948) 
[ 71.400824][ T782] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 71.401169][ T782] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 71.401563][ T782] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 71.401876][ T782] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 71.402195][ T782] ? __kernel_text_address (kernel/extable.c:79) 
[ 71.402519][ T782] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 71.402848][ T782] ? __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) 
[ 71.403174][ T782] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 71.403572][ T782] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 71.403883][ T782] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 71.404201][ T782] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 71.404510][ T782] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 71.404819][ T782] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 71.405140][ T782] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 71.405470][ T782] ? __create_object (mm/kmemleak.c:771) 
[ 71.405783][ T782] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 71.406113][ T782] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 71.406428][ T782] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 71.406827][ T782] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 71.407153][ T782] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 71.407471][ T782] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 71.407780][ T782] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 71.408094][ T782] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 71.408422][ T782] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 71.408742][ T782] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 71.409078][ T782] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 71.409409][ T782] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 71.409756][ T782] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 71.410073][ T782] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 71.410399][ T782] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 71.410713][ T782] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 71.411046][ T782] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 71.411375][ T782] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 71.411684][ T782] ? 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) 
[ 71.412002][ T782] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 71.412323][ T782] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 71.412634][ T782] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 71.412957][ T782] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 71.413289][ T782] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 71.413619][ T782] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 71.413948][ T782] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 71.414274][ T782] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 71.414600][ T782] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 71.415003][ T782] ___sys_sendmsg (net/socket.c:2670) 
[ 71.415325][ T782] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 71.415643][ T782] ? __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) 
[ 71.416038][ T782] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 71.416367][ T782] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 71.416687][ T782] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 71.417006][ T782] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 71.417334][ T782] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 71.417661][ T782] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 71.417999][ T782] __sys_sendmsg (net/socket.c:2700) 
[ 71.418324][ T782] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 71.418711][ T782] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 71.419034][ T782] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 71.419354][ T782] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 71.419666][ T782] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   71.420050][  T782] RIP: 0033:0x7fd39db091e7
[ 71.420379][ T782] 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)
[   71.421511][  T782] RSP: 002b:00007ffd38b0c688 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   71.421987][  T782] RAX: ffffffffffffffda RBX: 00007ffd38b0cdc0 RCX: 00007fd39db091e7
[   71.422472][  T782] RDX: 0000000000000000 RSI: 00007ffd38b0c6f0 RDI: 0000000000000005
[   71.422949][  T782] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   71.423427][  T782] R10: 000000002ad45910 R11: 0000000000000246 R12: 0000000000000004
[   71.423898][  T782] R13: 00000000686e2943 R14: 0000000000499600 R15: 0000000000000000
| [   71.685029][  T784] ------------[ cut here ]------------
| [ 71.685401][ T784] WARNING: CPU: 2 PID: 784 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) 
| [   71.686030][  T784] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   71.687209][  T784] Tainted: [W]=WARN
[   71.687477][  T784] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 71.687886][ T784] 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) 
[ 71.688235][ T784] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   71.689390][  T784] RSP: 0018:ffffc90001507080 EFLAGS: 00010246
[   71.689808][  T784] RAX: 0000000000000000 RBX: ffff8880091f2000 RCX: 0000000000000001
[   71.690308][  T784] RDX: 0000000000000000 RSI: ffffffff95510759 RDI: ffffffff94c58280
[   71.690805][  T784] RBP: ffffc90001507168 R08: 0000000000000000 R09: 0000000000000000
[   71.691300][  T784] R10: ffffc90001507198 R11: ffffffff968ceab8 R12: 1ffff920002a0e14
[   71.691787][  T784] R13: 00000000000005dc R14: ffffc90001507198 R15: ffff8880091f2f48
[   71.692281][  T784] FS:  00007fd1dc23b800(0000) GS:ffff8880d5499000(0000) knlGS:0000000000000000
[   71.692870][  T784] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   71.693299][  T784] CR2: 000000000043d940 CR3: 000000000f8a6005 CR4: 0000000000772ef0
[   71.693804][  T784] PKRU: 55555554
[   71.694062][  T784] Call Trace:
[   71.694334][  T784]  <TASK>
[ 71.694514][ T784] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 71.694852][ T784] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 71.695196][ T784] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 71.695613][ T784] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 71.695951][ T784] netif_set_mtu (net/core/dev.c:9652) 
[ 71.696301][ T784] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 71.696651][ T784] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 71.697073][ T784] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 71.697341][ T784] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 71.697683][ T784] br_add_if (net/bridge/br_if.c:697) 
[ 71.697952][ T784] do_set_master (net/core/rtnetlink.c:2948) 
[ 71.698316][ T784] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 71.698662][ T784] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 71.699003][ T784] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 71.699347][ T784] ? __dev_get_by_name (net/core/dev.c:865) 
[ 71.699683][ T784] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 71.700039][ T784] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 71.700393][ T784] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 71.700725][ T784] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 71.701067][ T784] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 71.701432][ T784] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 71.701811][ T784] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 71.702179][ T784] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 71.702514][ T784] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 71.702853][ T784] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 71.703208][ T784] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 71.703554][ T784] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 71.703900][ T784] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 71.704261][ T784] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 71.704598][ T784] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 71.704935][ T784] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 71.705294][ T784] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 71.705630][ T784] ? 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) 
[ 71.705973][ T784] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 71.706341][ T784] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 71.706680][ T784] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 71.707019][ T784] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 71.707365][ T784] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 71.707701][ T784] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 71.708040][ T784] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 71.708400][ T784] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 71.708740][ T784] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 71.709188][ T784] ___sys_sendmsg (net/socket.c:2670) 
[ 71.709533][ T784] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 71.709870][ T784] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 71.710227][ T784] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 71.710563][ T784] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 71.710892][ T784] ? __handle_mm_fault (mm/memory.c:6212) 
[ 71.711234][ T784] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 71.711569][ T784] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 71.711913][ T784] __sys_sendmsg (net/socket.c:2700) 
[ 71.712247][ T784] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 71.712574][ T784] ? 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) 
[ 71.712911][ T784] ? 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) 
[ 71.713252][ T784] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 71.713582][ T784] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 71.713919][ T784] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   71.714349][  T784] RIP: 0033:0x7fd1dc4081e7
[ 71.714692][ T784] 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)
[   71.715831][  T784] RSP: 002b:00007fff08c3e7b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   71.716335][  T784] RAX: ffffffffffffffda RBX: 00007fff08c3eef0 RCX: 00007fd1dc4081e7
[   71.716818][  T784] RDX: 0000000000000000 RSI: 00007fff08c3e820 RDI: 0000000000000005
[   71.717316][  T784] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   71.717803][  T784] R10: 00007fd1dc496ac0 R11: 0000000000000246 R12: 00007fff08c3ef28
[   71.718317][  T784] R13: 00000000686e2944 R14: 0000000000499600 R15: 00007fff08c3e910
| [   73.451761][  T797] ------------[ cut here ]------------
| [ 73.452061][ T797] WARNING: CPU: 1 PID: 797 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) 
| [   73.452679][  T797] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   73.453765][  T797] Tainted: [W]=WARN
[   73.453989][  T797] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 73.454381][ T797] 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) 
[ 73.454704][ T797] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   73.455781][  T797] RSP: 0018:ffffc90001586ef0 EFLAGS: 00010246
[   73.456164][  T797] RAX: 0000000000000000 RBX: ffff888009472000 RCX: 0000000000000001
[   73.456621][  T797] RDX: 0000000000000000 RSI: ffffffff95510759 RDI: ffffffff94c58280
[   73.457061][  T797] RBP: ffffc90001586fd8 R08: 0000000000000000 R09: 0000000000000000
[   73.457513][  T797] R10: ffffc90001587008 R11: ffffffff95f8d1e0 R12: 1ffff920002b0de2
[   73.457979][  T797] R13: 00000000000005dc R14: ffffc90001587008 R15: ffff888009472f48
[   73.458441][  T797] FS:  00007f81d478f800(0000) GS:ffff8880d5419000(0000) knlGS:0000000000000000
[   73.458976][  T797] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   73.459357][  T797] CR2: 00000000004e6888 CR3: 0000000005588003 CR4: 0000000000772ef0
[   73.459823][  T797] PKRU: 55555554
[   73.460045][  T797] Call Trace:
[   73.460274][  T797]  <TASK>
[ 73.460429][ T797] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 73.460745][ T797] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 73.461055][ T797] netif_set_mtu (net/core/dev.c:9652) 
[ 73.461372][ T797] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 73.461700][ T797] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 73.461931][ T797] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 73.462251][ T797] br_add_if (net/bridge/br_if.c:697) 
[ 73.462490][ T797] do_set_master (net/core/rtnetlink.c:2948) 
[ 73.462815][ T797] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 73.463129][ T797] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 73.463504][ T797] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 73.463818][ T797] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 73.464124][ T797] ? __kernel_text_address (kernel/extable.c:79) 
[ 73.464432][ T797] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 73.464747][ T797] ? __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) 
[ 73.465047][ T797] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 73.465421][ T797] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 73.465733][ T797] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 73.466028][ T797] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 73.466342][ T797] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 73.466649][ T797] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 73.466968][ T797] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 73.467271][ T797] ? __create_object (mm/kmemleak.c:771) 
[ 73.467566][ T797] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 73.467884][ T797] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 73.468189][ T797] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 73.468554][ T797] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 73.468878][ T797] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 73.469190][ T797] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 73.469485][ T797] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 73.469802][ T797] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 73.470127][ T797] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 73.470424][ T797] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 73.470720][ T797] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 73.471033][ T797] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 73.471348][ T797] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 73.471649][ T797] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 73.471963][ T797] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 73.472269][ T797] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 73.472568][ T797] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 73.472894][ T797] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 73.473203][ T797] ? 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) 
[ 73.473509][ T797] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 73.473809][ T797] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 73.474141][ T797] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 73.474446][ T797] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 73.474745][ T797] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 73.475057][ T797] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 73.475370][ T797] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 73.475670][ T797] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 73.475990][ T797] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 73.476384][ T797] ___sys_sendmsg (net/socket.c:2670) 
[ 73.476678][ T797] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 73.476981][ T797] ? __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) 
[ 73.477358][ T797] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 73.477657][ T797] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 73.477966][ T797] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 73.478299][ T797] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 73.478599][ T797] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 73.478893][ T797] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 73.479222][ T797] __sys_sendmsg (net/socket.c:2700) 
[ 73.479516][ T797] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 73.479879][ T797] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 73.480209][ T797] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 73.480514][ T797] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 73.480813][ T797] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   73.481205][  T797] RIP: 0033:0x7f81d495c1e7
[ 73.481515][ T797] 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)
[   73.482609][  T797] RSP: 002b:00007ffd32245d28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   73.483092][  T797] RAX: ffffffffffffffda RBX: 00007ffd32246460 RCX: 00007f81d495c1e7
[   73.483549][  T797] RDX: 0000000000000000 RSI: 00007ffd32245d90 RDI: 0000000000000005
[   73.483995][  T797] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   73.484469][  T797] R10: 000000002f4b8910 R11: 0000000000000246 R12: 0000000000000004
[   73.484915][  T797] R13: 00000000686e2946 R14: 0000000000499600 R15: 0000000000000000
| [   73.735929][  T799] ------------[ cut here ]------------
| [ 73.736242][ T799] WARNING: CPU: 0 PID: 799 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) 
| [   73.736837][  T799] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   73.738192][  T799] Tainted: [W]=WARN
[   73.738421][  T799] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 73.738799][ T799] 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) 
[ 73.739120][ T799] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   73.740215][  T799] RSP: 0018:ffffc90001597080 EFLAGS: 00010246
[   73.740598][  T799] RAX: 0000000000000000 RBX: ffff888009472000 RCX: 0000000000000001
[   73.741050][  T799] RDX: 0000000000000000 RSI: ffffffff95510759 RDI: ffffffff94c58280
[   73.741508][  T799] RBP: ffffc90001597168 R08: 0000000000000000 R09: 0000000000000000
[   73.741969][  T799] R10: ffffc90001597198 R11: ffffffff968ceab8 R12: 1ffff920002b2e14
[   73.742432][  T799] R13: 00000000000005dc R14: ffffc90001597198 R15: ffff888009472f48
[   73.742902][  T799] FS:  00007f7bde980800(0000) GS:ffff8880d5399000(0000) knlGS:0000000000000000
[   73.743441][  T799] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   73.743830][  T799] CR2: 00007f7bdea80130 CR3: 000000000ce56004 CR4: 0000000000772ef0
[   73.744302][  T799] PKRU: 55555554
[   73.744531][  T799] Call Trace:
[   73.744756][  T799]  <TASK>
[ 73.744915][ T799] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 73.745232][ T799] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 73.745539][ T799] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 73.745915][ T799] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 73.746251][ T799] netif_set_mtu (net/core/dev.c:9652) 
[ 73.746555][ T799] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 73.746868][ T799] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 73.747255][ T799] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 73.747489][ T799] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 73.747797][ T799] br_add_if (net/bridge/br_if.c:697) 
[ 73.748037][ T799] do_set_master (net/core/rtnetlink.c:2948) 
[ 73.748355][ T799] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 73.748668][ T799] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 73.748974][ T799] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 73.749279][ T799] ? __dev_get_by_name (net/core/dev.c:865) 
[ 73.749586][ T799] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 73.749888][ T799] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 73.750201][ T799] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 73.750506][ T799] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 73.750813][ T799] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 73.751133][ T799] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 73.751441][ T799] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 73.751759][ T799] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 73.752059][ T799] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 73.752378][ T799] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 73.752682][ T799] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 73.753013][ T799] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 73.753329][ T799] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 73.753640][ T799] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 73.753945][ T799] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 73.754257][ T799] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 73.754575][ T799] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 73.754876][ T799] ? 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) 
[ 73.755190][ T799] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 73.755500][ T799] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 73.755799][ T799] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 73.756114][ T799] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 73.756420][ T799] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 73.756729][ T799] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 73.757039][ T799] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 73.757354][ T799] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 73.757655][ T799] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 73.758041][ T799] ___sys_sendmsg (net/socket.c:2670) 
[ 73.758351][ T799] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 73.758656][ T799] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 73.758960][ T799] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 73.759272][ T799] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 73.759582][ T799] ? __handle_mm_fault (mm/memory.c:6212) 
[ 73.759883][ T799] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 73.760189][ T799] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 73.760515][ T799] __sys_sendmsg (net/socket.c:2700) 
[ 73.760815][ T799] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 73.761126][ T799] ? 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) 
[ 73.761433][ T799] ? 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) 
[ 73.761741][ T799] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 73.762044][ T799] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 73.762354][ T799] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   73.762730][  T799] RIP: 0033:0x7f7bdeb4d1e7
[ 73.763047][ T799] 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)
[   73.764138][  T799] RSP: 002b:00007ffe925136c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   73.764601][  T799] RAX: ffffffffffffffda RBX: 00007ffe92513e00 RCX: 00007f7bdeb4d1e7
[   73.765053][  T799] RDX: 0000000000000000 RSI: 00007ffe92513730 RDI: 0000000000000005
[   73.765513][  T799] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   73.765969][  T799] R10: 00007f7bdebdbac0 R11: 0000000000000246 R12: 00007ffe92513e38
[   73.766426][  T799] R13: 00000000686e2946 R14: 0000000000499600 R15: 00007ffe92513820
| [   96.957391][ T1019] ------------[ cut here ]------------
| [ 96.957694][ T1019] WARNING: CPU: 1 PID: 1019 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) 
| [   96.958318][ T1019] Modules linked in: cls_matchall act_gact cls_flower sch_ingress vxlan
| [   96.960751][ T1019] Tainted: [W]=WARN
[   96.960980][ T1019] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 96.961377][ T1019] 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) 
[ 96.961684][ T1019] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   96.962774][ T1019] RSP: 0018:ffffc90000d46ef0 EFLAGS: 00010246
[   96.963191][ T1019] RAX: 0000000000000000 RBX: ffff88800c612000 RCX: 0000000000000001
[   96.963638][ T1019] RDX: 0000000000000000 RSI: ffffffff95510759 RDI: ffffffff94c58280
[   96.964077][ T1019] RBP: ffffc90000d46fd8 R08: 0000000000000000 R09: 0000000000000000
[   96.964542][ T1019] R10: ffffc90000d47008 R11: ffffffff95f8d1e0 R12: 1ffff920001a8de2
[   96.964984][ T1019] R13: 00000000000005dc R14: ffffc90000d47008 R15: ffff88800c612f48
[   96.965454][ T1019] FS:  00007fbc3b721800(0000) GS:ffff8880d5419000(0000) knlGS:0000000000000000
[   96.965969][ T1019] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   96.966407][ T1019] CR2: 00000000004e6888 CR3: 000000000ee13001 CR4: 0000000000772ef0
[   96.966856][ T1019] PKRU: 55555554
[   96.967077][ T1019] Call Trace:
[   96.967321][ T1019]  <TASK>
[ 96.967475][ T1019] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 96.967778][ T1019] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 96.968085][ T1019] netif_set_mtu (net/core/dev.c:9652) 
[ 96.968404][ T1019] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 96.968712][ T1019] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 96.968936][ T1019] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 96.969246][ T1019] br_add_if (net/bridge/br_if.c:697) 
[ 96.969490][ T1019] do_set_master (net/core/rtnetlink.c:2948) 
[ 96.969794][ T1019] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 96.970094][ T1019] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 96.970507][ T1019] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 96.970801][ T1019] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 96.971097][ T1019] ? __kernel_text_address (kernel/extable.c:79) 
[ 96.971528][ T1019] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 96.971836][ T1019] ? __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) 
[ 96.972154][ T1019] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 96.972556][ T1019] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 96.972863][ T1019] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 96.973366][ T1019] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 96.973668][ T1019] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 96.973965][ T1019] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 96.974282][ T1019] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 96.974591][ T1019] ? __create_object (mm/kmemleak.c:771) 
[ 96.974896][ T1019] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 96.975203][ T1019] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 96.975542][ T1019] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 96.975914][ T1019] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 96.976229][ T1019] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 96.976544][ T1019] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 96.976841][ T1019] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 96.977206][ T1019] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 96.977511][ T1019] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 96.977803][ T1019] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 96.978100][ T1019] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 96.978415][ T1019] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 96.978745][ T1019] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 96.979045][ T1019] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 96.979359][ T1019] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 96.979671][ T1019] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 96.979968][ T1019] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 96.980287][ T1019] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 96.980596][ T1019] ? 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) 
[ 96.980892][ T1019] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 96.981199][ T1019] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 96.981504][ T1019] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 96.981810][ T1019] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 96.982132][ T1019] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 96.982429][ T1019] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 96.982744][ T1019] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 96.983052][ T1019] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 96.983356][ T1019] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 96.983751][ T1019] ___sys_sendmsg (net/socket.c:2670) 
[ 96.984048][ T1019] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 96.984348][ T1019] ? __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) 
[ 96.984750][ T1019] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 96.985049][ T1019] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 96.985357][ T1019] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 96.985674][ T1019] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 96.985967][ T1019] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 96.986286][ T1019] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 96.986595][ T1019] __sys_sendmsg (net/socket.c:2700) 
[ 96.986895][ T1019] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 96.987272][ T1019] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 96.987579][ T1019] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 96.987888][ T1019] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 96.988194][ T1019] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   96.988562][ T1019] RIP: 0033:0x7fbc3b8ee1e7
[ 96.988881][ T1019] 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)
[   96.989961][ T1019] RSP: 002b:00007ffdad849728 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   96.990425][ T1019] RAX: ffffffffffffffda RBX: 00007ffdad849e60 RCX: 00007fbc3b8ee1e7
[   96.990904][ T1019] RDX: 0000000000000000 RSI: 00007ffdad849790 RDI: 0000000000000005
[   96.991353][ T1019] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   96.991805][ T1019] R10: 0000000015a7a910 R11: 0000000000000246 R12: 0000000000000004
[   96.992256][ T1019] R13: 00000000686e295d R14: 0000000000499600 R15: 0000000000000000
| [   97.270788][ T1021] ------------[ cut here ]------------
| [ 97.271094][ T1021] WARNING: CPU: 3 PID: 1021 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) 
| [   97.271697][ T1021] Modules linked in: cls_matchall act_gact cls_flower sch_ingress vxlan
| [   97.272797][ T1021] Tainted: [W]=WARN
[   97.273030][ T1021] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 97.274478][ T1021] 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) 
[ 97.274794][ T1021] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   97.275882][ T1021] RSP: 0018:ffffc90000a57080 EFLAGS: 00010246
[   97.276274][ T1021] RAX: 0000000000000000 RBX: ffff88800c612000 RCX: 0000000000000001
[   97.276724][ T1021] RDX: 0000000000000000 RSI: ffffffff95510759 RDI: ffffffff94c58280
[   97.277194][ T1021] RBP: ffffc90000a57168 R08: 0000000000000000 R09: 0000000000000000
[   97.277659][ T1021] R10: ffffc90000a57198 R11: ffffffff95f8d1e0 R12: 1ffff9200014ae14
[   97.278119][ T1021] R13: 00000000000005dc R14: ffffc90000a57198 R15: ffff88800c612f48
[   97.278580][ T1021] FS:  00007fcbbcb78800(0000) GS:ffff8880d5519000(0000) knlGS:0000000000000000
[   97.279116][ T1021] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   97.279496][ T1021] CR2: 000000000043d940 CR3: 000000000ee10006 CR4: 0000000000772ef0
[   97.279960][ T1021] PKRU: 55555554
[   97.280194][ T1021] Call Trace:
[   97.280420][ T1021]  <TASK>
[ 97.280577][ T1021] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 97.280889][ T1021] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 97.281224][ T1021] netif_set_mtu (net/core/dev.c:9652) 
[ 97.281532][ T1021] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 97.281858][ T1021] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 97.282092][ T1021] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 97.282409][ T1021] br_add_if (net/bridge/br_if.c:697) 
[ 97.282650][ T1021] do_set_master (net/core/rtnetlink.c:2948) 
[ 97.282961][ T1021] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 97.283276][ T1021] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 97.283581][ T1021] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 97.283891][ T1021] ? __dev_get_by_name (net/core/dev.c:865) 
[ 97.284226][ T1021] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 97.284532][ T1021] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 97.284837][ T1021] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 97.285155][ T1021] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 97.285467][ T1021] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 97.285782][ T1021] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 97.286088][ T1021] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 97.286411][ T1021] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 97.286720][ T1021] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 97.287024][ T1021] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 97.287339][ T1021] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 97.287646][ T1021] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 97.287951][ T1021] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 97.288265][ T1021] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 97.288568][ T1021] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 97.288880][ T1021] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 97.289224][ T1021] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 97.289527][ T1021] ? 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) 
[ 97.289830][ T1021] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 97.290144][ T1021] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 97.290446][ T1021] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 97.290759][ T1021] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 97.291068][ T1021] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 97.291382][ T1021] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 97.291692][ T1021] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 97.291997][ T1021] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 97.292305][ T1021] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 97.292694][ T1021] ___sys_sendmsg (net/socket.c:2670) 
[ 97.293015][ T1021] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 97.293341][ T1021] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 97.293650][ T1021] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 97.293951][ T1021] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 97.294265][ T1021] ? __handle_mm_fault (mm/memory.c:6212) 
[ 97.294571][ T1021] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 97.294872][ T1021] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 97.295206][ T1021] __sys_sendmsg (net/socket.c:2700) 
[ 97.295509][ T1021] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 97.295811][ T1021] ? 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) 
[ 97.296130][ T1021] ? 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) 
[ 97.296436][ T1021] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 97.296748][ T1021] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 97.297056][ T1021] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   97.297446][ T1021] RIP: 0033:0x7fcbbcd451e7
[ 97.297769][ T1021] 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)
[   97.298852][ T1021] RSP: 002b:00007ffcac74fe68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   97.299317][ T1021] RAX: ffffffffffffffda RBX: 00007ffcac7505a0 RCX: 00007fcbbcd451e7
[   97.299774][ T1021] RDX: 0000000000000000 RSI: 00007ffcac74fed0 RDI: 0000000000000005
[   97.300237][ T1021] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   97.300691][ T1021] R10: 00007fcbbcdd3ac0 R11: 0000000000000246 R12: 00007ffcac7505d8
[   97.301162][ T1021] R13: 00000000686e295d R14: 0000000000499600 R15: 00007ffcac74ffc0
| [   98.810894][ T1034] ------------[ cut here ]------------
| [ 98.811236][ T1034] WARNING: CPU: 2 PID: 1034 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) 
| [   98.811838][ T1034] Modules linked in: cls_matchall act_gact cls_flower sch_ingress vxlan
| [   98.812944][ T1034] Tainted: [W]=WARN
[   98.813193][ T1034] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 98.813586][ T1034] 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) 
[ 98.813901][ T1034] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   98.814970][ T1034] RSP: 0018:ffffc90000e06ef0 EFLAGS: 00010246
[   98.815376][ T1034] RAX: 0000000000000000 RBX: ffff888008b6a000 RCX: 0000000000000001
[   98.815839][ T1034] RDX: 0000000000000000 RSI: ffffffff95510759 RDI: ffffffff94c58280
[   98.816301][ T1034] RBP: ffffc90000e06fd8 R08: 0000000000000000 R09: 0000000000000000
[   98.816753][ T1034] R10: ffffc90000e07008 R11: ffffffff95f8d1e0 R12: 1ffff920001c0de2
[   98.817214][ T1034] R13: 00000000000005dc R14: ffffc90000e07008 R15: ffff888008b6af48
[   98.817670][ T1034] FS:  00007f0bf5203800(0000) GS:ffff8880d5499000(0000) knlGS:0000000000000000
[   98.818209][ T1034] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   98.818620][ T1034] CR2: 00000000004e6888 CR3: 000000000a064001 CR4: 0000000000772ef0
[   98.819164][ T1034] PKRU: 55555554
[   98.819408][ T1034] Call Trace:
[   98.819663][ T1034]  <TASK>
[ 98.819830][ T1034] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 98.820159][ T1034] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 98.820479][ T1034] netif_set_mtu (net/core/dev.c:9652) 
[ 98.820787][ T1034] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 98.821119][ T1034] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 98.821359][ T1034] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 98.821670][ T1034] br_add_if (net/bridge/br_if.c:697) 
[ 98.821923][ T1034] do_set_master (net/core/rtnetlink.c:2948) 
[ 98.822245][ T1034] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 98.822560][ T1034] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 98.822952][ T1034] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 98.823281][ T1034] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 98.823591][ T1034] ? __kernel_text_address (kernel/extable.c:79) 
[ 98.823906][ T1034] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 98.824228][ T1034] ? __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) 
[ 98.824541][ T1034] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 98.824921][ T1034] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 98.825241][ T1034] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 98.825545][ T1034] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 98.825851][ T1034] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 98.826169][ T1034] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 98.826477][ T1034] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 98.826784][ T1034] ? __create_object (mm/kmemleak.c:771) 
[ 98.827098][ T1034] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 98.827431][ T1034] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 98.827740][ T1034] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 98.828126][ T1034] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 98.828444][ T1034] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 98.828754][ T1034] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 98.829064][ T1034] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 98.829393][ T1034] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 98.829702][ T1034] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 98.830008][ T1034] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 98.830329][ T1034] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 98.830637][ T1034] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 98.830944][ T1034] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 98.831275][ T1034] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 98.831592][ T1034] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 98.831900][ T1034] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 98.832219][ T1034] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 98.832538][ T1034] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 98.832848][ T1034] ? 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) 
[ 98.833178][ T1034] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 98.833489][ T1034] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 98.833800][ T1034] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 98.834121][ T1034] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 98.834436][ T1034] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 98.834743][ T1034] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 98.835060][ T1034] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 98.835389][ T1034] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 98.835716][ T1034] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 98.836126][ T1034] ___sys_sendmsg (net/socket.c:2670) 
[ 98.836455][ T1034] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 98.836772][ T1034] ? __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) 
[ 98.837171][ T1034] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 98.837484][ T1034] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 98.837797][ T1034] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 98.838120][ T1034] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 98.838435][ T1034] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 98.838742][ T1034] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 98.839058][ T1034] __sys_sendmsg (net/socket.c:2700) 
[ 98.839379][ T1034] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 98.839759][ T1034] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 98.840079][ T1034] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 98.840406][ T1034] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 98.840717][ T1034] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   98.841110][ T1034] RIP: 0033:0x7f0bf53d01e7
[ 98.841429][ T1034] 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)
[   98.842510][ T1034] RSP: 002b:00007ffc85dba2a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   98.842987][ T1034] RAX: ffffffffffffffda RBX: 00007ffc85dba9e0 RCX: 00007f0bf53d01e7
[   98.843463][ T1034] RDX: 0000000000000000 RSI: 00007ffc85dba310 RDI: 0000000000000005
[   98.843922][ T1034] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   98.844400][ T1034] R10: 0000000037798910 R11: 0000000000000246 R12: 0000000000000004
[   98.844864][ T1034] R13: 00000000686e295f R14: 0000000000499600 R15: 0000000000000000
| [   99.093521][ T1036] ------------[ cut here ]------------
| [ 99.093828][ T1036] WARNING: CPU: 3 PID: 1036 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) 
| [   99.095196][ T1036] Modules linked in: cls_matchall act_gact cls_flower sch_ingress vxlan
| [   99.096321][ T1036] Tainted: [W]=WARN
[   99.096552][ T1036] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 99.096929][ T1036] 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) 
[ 99.097259][ T1036] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   99.098349][ T1036] RSP: 0018:ffffc90000e17080 EFLAGS: 00010246
[   99.098740][ T1036] RAX: 0000000000000000 RBX: ffff888008b6a000 RCX: 0000000000000001
[   99.099196][ T1036] RDX: 0000000000000000 RSI: ffffffff95510759 RDI: ffffffff94c58280
[   99.099653][ T1036] RBP: ffffc90000e17168 R08: 0000000000000000 R09: 0000000000000000
[   99.100131][ T1036] R10: ffffc90000e17198 R11: ffffffff95f8d1e0 R12: 1ffff920001c2e14
[   99.100581][ T1036] R13: 00000000000005dc R14: ffffc90000e17198 R15: ffff888008b6af48
[   99.101035][ T1036] FS:  00007fbc78803800(0000) GS:ffff8880d5519000(0000) knlGS:0000000000000000
[   99.101583][ T1036] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   99.101968][ T1036] CR2: 000000000043d940 CR3: 000000000ae45002 CR4: 0000000000772ef0
[   99.102431][ T1036] PKRU: 55555554
[   99.102660][ T1036] Call Trace:
[   99.102897][ T1036]  <TASK>
[ 99.103053][ T1036] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 99.103365][ T1036] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 99.103684][ T1036] netif_set_mtu (net/core/dev.c:9652) 
[ 99.103990][ T1036] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 99.104357][ T1036] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 99.104588][ T1036] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 99.104897][ T1036] br_add_if (net/bridge/br_if.c:697) 
[ 99.105153][ T1036] do_set_master (net/core/rtnetlink.c:2948) 
[ 99.105461][ T1036] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 99.105766][ T1036] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 99.106078][ T1036] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 99.106388][ T1036] ? __dev_get_by_name (net/core/dev.c:865) 
[ 99.106694][ T1036] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 99.106997][ T1036] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 99.107314][ T1036] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 99.107614][ T1036] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 99.107920][ T1036] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 99.108245][ T1036] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 99.108555][ T1036] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 99.108869][ T1036] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 99.109187][ T1036] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 99.109500][ T1036] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 99.109801][ T1036] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 99.110116][ T1036] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 99.110425][ T1036] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 99.110738][ T1036] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 99.111040][ T1036] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 99.111354][ T1036] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 99.111670][ T1036] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 99.111972][ T1036] ? 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) 
[ 99.112286][ T1036] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 99.112595][ T1036] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 99.112910][ T1036] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 99.113241][ T1036] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 99.113550][ T1036] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 99.113854][ T1036] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 99.114174][ T1036] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 99.114480][ T1036] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 99.114781][ T1036] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 99.115182][ T1036] ___sys_sendmsg (net/socket.c:2670) 
[ 99.115488][ T1036] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 99.115790][ T1036] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 99.116096][ T1036] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 99.116410][ T1036] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 99.116721][ T1036] ? __handle_mm_fault (mm/memory.c:6212) 
[ 99.117021][ T1036] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 99.117342][ T1036] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 99.117666][ T1036] __sys_sendmsg (net/socket.c:2700) 
[ 99.117967][ T1036] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 99.118279][ T1036] ? 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) 
[ 99.118595][ T1036] ? 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) 
[ 99.118900][ T1036] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 99.119215][ T1036] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 99.119525][ T1036] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   99.119899][ T1036] RIP: 0033:0x7fbc789d01e7
[ 99.120224][ T1036] 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)
[   99.121320][ T1036] RSP: 002b:00007ffd19ce62f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   99.121783][ T1036] RAX: ffffffffffffffda RBX: 00007ffd19ce6a30 RCX: 00007fbc789d01e7
[   99.122248][ T1036] RDX: 0000000000000000 RSI: 00007ffd19ce6360 RDI: 0000000000000005
[   99.122701][ T1036] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   99.123173][ T1036] R10: 00007fbc78a5eac0 R11: 0000000000000246 R12: 00007ffd19ce6a68
[   99.123628][ T1036] R13: 00000000686e295f R14: 0000000000499600 R15: 00007ffd19ce6450
| [  120.369029][ T1161] ------------[ cut here ]------------
| [ 120.369366][ T1161] WARNING: CPU: 2 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) 
| [  120.369960][ T1161] Modules linked in: cls_matchall act_gact cls_flower sch_ingress vxlan
| [  120.371056][ T1161] Tainted: [W]=WARN
[  120.371306][ T1161] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 120.371690][ 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) 
[ 120.372005][ T1161] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  120.373116][ T1161] RSP: 0018:ffffc90001236ef0 EFLAGS: 00010246
[  120.373501][ T1161] RAX: 0000000000000000 RBX: ffff8880091f2000 RCX: 0000000000000001
[  120.373961][ T1161] RDX: 0000000000000000 RSI: ffffffff95510759 RDI: ffffffff94c58280
[  120.374438][ T1161] RBP: ffffc90001236fd8 R08: 0000000000000000 R09: 0000000000000000
[  120.374894][ T1161] R10: ffffc90001237008 R11: ffffffff95f8d1e0 R12: 1ffff92000246de2
[  120.375359][ T1161] R13: 00000000000005dc R14: ffffc90001237008 R15: ffff8880091f2f48
[  120.375812][ T1161] FS:  00007fada5f27800(0000) GS:ffff8880d5499000(0000) knlGS:0000000000000000
[  120.376361][ T1161] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  120.376747][ T1161] CR2: 00000000004e6888 CR3: 000000000b3a9001 CR4: 0000000000772ef0
[  120.377215][ T1161] PKRU: 55555554
[  120.377456][ T1161] Call Trace:
[  120.377688][ T1161]  <TASK>
[ 120.377854][ T1161] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 120.378179][ T1161] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 120.378508][ T1161] netif_set_mtu (net/core/dev.c:9652) 
[ 120.378817][ T1161] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 120.379152][ T1161] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 120.379393][ T1161] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 120.379706][ T1161] br_add_if (net/bridge/br_if.c:697) 
[ 120.379959][ T1161] do_set_master (net/core/rtnetlink.c:2948) 
[ 120.380281][ T1161] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 120.380595][ T1161] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 120.380991][ T1161] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 120.381310][ T1161] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 120.381617][ T1161] ? __kernel_text_address (kernel/extable.c:79) 
[ 120.381929][ T1161] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 120.382250][ T1161] ? __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) 
[ 120.382560][ T1161] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 120.382952][ T1161] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 120.383292][ T1161] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 120.383598][ T1161] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 120.383905][ T1161] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 120.384223][ T1161] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 120.384534][ T1161] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 120.384841][ T1161] ? __create_object (mm/kmemleak.c:771) 
[ 120.385168][ T1161] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 120.385486][ T1161] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 120.385794][ T1161] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 120.386181][ T1161] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 120.386495][ T1161] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 120.386812][ T1161] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 120.387129][ T1161] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 120.387444][ T1161] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 120.387750][ T1161] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 120.388063][ T1161] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 120.388383][ T1161] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 120.388692][ T1161] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 120.388998][ T1161] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 120.389322][ T1161] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 120.389633][ T1161] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 120.389940][ T1161] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 120.390268][ T1161] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 120.390589][ T1161] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 120.390897][ 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) 
[ 120.391224][ T1161] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 120.391535][ T1161] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 120.391843][ T1161] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 120.392165][ T1161] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 120.392486][ T1161] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 120.392794][ T1161] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 120.393127][ T1161] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 120.393439][ T1161] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 120.393744][ T1161] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 120.394145][ T1161] ___sys_sendmsg (net/socket.c:2670) 
[ 120.394454][ T1161] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 120.394766][ T1161] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 120.395158][ T1161] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 120.395470][ T1161] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 120.395781][ T1161] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 120.396096][ T1161] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 120.396415][ T1161] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 120.396723][ T1161] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 120.397037][ T1161] __sys_sendmsg (net/socket.c:2700) 
[ 120.397365][ T1161] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 120.397744][ T1161] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 120.398066][ T1161] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 120.398387][ T1161] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 120.398696][ T1161] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  120.399072][ T1161] RIP: 0033:0x7fada60f41e7
[ 120.399403][ 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)
[  120.400478][ T1161] RSP: 002b:00007fff03a894f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  120.400936][ T1161] RAX: ffffffffffffffda RBX: 00007fff03a89c30 RCX: 00007fada60f41e7
[  120.401397][ T1161] RDX: 0000000000000000 RSI: 00007fff03a89560 RDI: 0000000000000005
[  120.401857][ T1161] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  120.402320][ T1161] R10: 000000003c214910 R11: 0000000000000246 R12: 0000000000000004
[  120.402771][ T1161] R13: 00000000686e2974 R14: 0000000000499600 R15: 0000000000000000
| [  120.664770][ T1163] ------------[ cut here ]------------
| [ 120.665068][ T1163] WARNING: CPU: 3 PID: 1163 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  120.665672][ T1163] Modules linked in: cls_matchall act_gact cls_flower sch_ingress vxlan
| [  120.666764][ T1163] Tainted: [W]=WARN
[  120.666992][ T1163] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 120.667397][ T1163] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 120.667712][ T1163] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  120.669531][ T1163] RSP: 0018:ffffc90001257080 EFLAGS: 00010246
[  120.669915][ T1163] RAX: 0000000000000000 RBX: ffff8880091f2000 RCX: 0000000000000001
[  120.670374][ T1163] RDX: 0000000000000000 RSI: ffffffff95510759 RDI: ffffffff94c58280
[  120.670831][ T1163] RBP: ffffc90001257168 R08: 0000000000000000 R09: 0000000000000000
[  120.671299][ T1163] R10: ffffc90001257198 R11: ffffffff968ceab8 R12: 1ffff9200024ae14
[  120.671750][ T1163] R13: 00000000000005dc R14: ffffc90001257198 R15: ffff8880091f2f48
[  120.672207][ T1163] FS:  00007f9d67c1b800(0000) GS:ffff8880d5519000(0000) knlGS:0000000000000000
[  120.672739][ T1163] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  120.673136][ T1163] CR2: 000000000043d940 CR3: 000000000b01b003 CR4: 0000000000772ef0
[  120.673589][ T1163] PKRU: 55555554
[  120.673815][ T1163] Call Trace:
[  120.674043][ T1163]  <TASK>
[ 120.674209][ T1163] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 120.674518][ T1163] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 120.674827][ T1163] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 120.675222][ T1163] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 120.675536][ T1163] netif_set_mtu (net/core/dev.c:9652) 
[ 120.675839][ T1163] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 120.676161][ T1163] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 120.676552][ T1163] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 120.676783][ T1163] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 120.677096][ T1163] br_add_if (net/bridge/br_if.c:697) 
[ 120.677350][ T1163] do_set_master (net/core/rtnetlink.c:2948) 
[ 120.677651][ T1163] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 120.677956][ T1163] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 120.678272][ T1163] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 120.678574][ T1163] ? __dev_get_by_name (net/core/dev.c:865) 
[ 120.678876][ T1163] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 120.679205][ T1163] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 120.679520][ T1163] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 120.679820][ T1163] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 120.680136][ T1163] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 120.680450][ T1163] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 120.680757][ T1163] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 120.681070][ T1163] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 120.681378][ T1163] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 120.681689][ T1163] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 120.681993][ T1163] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 120.682306][ T1163] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 120.682612][ T1163] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 120.682934][ T1163] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 120.683257][ T1163] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 120.683563][ T1163] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 120.683882][ T1163] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 120.684191][ T1163] ? 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) 
[ 120.684496][ T1163] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 120.684801][ T1163] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 120.685113][ T1163] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 120.685424][ T1163] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 120.685729][ T1163] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 120.686038][ T1163] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 120.686356][ T1163] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 120.686661][ T1163] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 120.686960][ T1163] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 120.687366][ T1163] ___sys_sendmsg (net/socket.c:2670) 
[ 120.687673][ T1163] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 120.687977][ T1163] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 120.688295][ T1163] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 120.688598][ T1163] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 120.688902][ T1163] ? __handle_mm_fault (mm/memory.c:6212) 
[ 120.689210][ T1163] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 120.689511][ T1163] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 120.689833][ T1163] __sys_sendmsg (net/socket.c:2700) 
[ 120.690143][ T1163] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 120.690456][ T1163] ? 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) 
[ 120.690763][ T1163] ? 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) 
[ 120.691068][ T1163] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 120.691393][ T1163] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 120.691707][ T1163] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  120.692082][ T1163] RIP: 0033:0x7f9d67de81e7
[ 120.692401][ T1163] 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)
[  120.693505][ T1163] RSP: 002b:00007fff6f6148d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  120.693962][ T1163] RAX: ffffffffffffffda RBX: 00007fff6f615010 RCX: 00007f9d67de81e7
[  120.694423][ T1163] RDX: 0000000000000000 RSI: 00007fff6f614940 RDI: 0000000000000005
[  120.694886][ T1163] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  120.695355][ T1163] R10: 00007f9d67e76ac0 R11: 0000000000000246 R12: 00007fff6f615048
[  120.695810][ T1163] R13: 00000000686e2975 R14: 0000000000499600 R15: 00007fff6f614a30
| [  122.175362][ T1176] ------------[ cut here ]------------
| [ 122.175658][ T1176] WARNING: CPU: 0 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) 
| [  122.176242][ T1176] Modules linked in: cls_matchall act_gact cls_flower sch_ingress vxlan
| [  122.177316][ T1176] Tainted: [W]=WARN
[  122.177552][ T1176] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 122.177926][ 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) 
[ 122.178246][ T1176] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  122.179302][ T1176] RSP: 0018:ffffc900012d6ef0 EFLAGS: 00010246
[  122.179680][ T1176] RAX: 0000000000000000 RBX: ffff88800c3da000 RCX: 0000000000000001
[  122.180129][ T1176] RDX: 0000000000000000 RSI: ffffffff95510759 RDI: ffffffff94c58280
[  122.180569][ T1176] RBP: ffffc900012d6fd8 R08: 0000000000000000 R09: 0000000000000000
[  122.181006][ T1176] R10: ffffc900012d7008 R11: ffffffff95f8d1e0 R12: 1ffff9200025ade2
[  122.181466][ T1176] R13: 00000000000005dc R14: ffffc900012d7008 R15: ffff88800c3daf48
[  122.181907][ T1176] FS:  00007ff7c9ff4800(0000) GS:ffff8880d5399000(0000) knlGS:0000000000000000
[  122.182426][ T1176] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  122.182797][ T1176] CR2: 00000000004e6888 CR3: 000000000ec15006 CR4: 0000000000772ef0
[  122.183255][ T1176] PKRU: 55555554
[  122.183482][ T1176] Call Trace:
[  122.183700][ T1176]  <TASK>
[ 122.183852][ T1176] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 122.184155][ T1176] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 122.184462][ T1176] netif_set_mtu (net/core/dev.c:9652) 
[ 122.184754][ T1176] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 122.185068][ T1176] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 122.185309][ T1176] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 122.185608][ T1176] br_add_if (net/bridge/br_if.c:697) 
[ 122.185846][ T1176] do_set_master (net/core/rtnetlink.c:2948) 
[ 122.186166][ T1176] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 122.186467][ T1176] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 122.186839][ T1176] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 122.187137][ T1176] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 122.187428][ T1176] ? __kernel_text_address (kernel/extable.c:79) 
[ 122.187726][ T1176] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 122.188026][ T1176] ? __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) 
[ 122.188328][ T1176] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 122.188694][ T1176] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 122.188987][ T1176] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 122.189295][ T1176] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 122.189589][ T1176] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 122.189885][ T1176] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 122.190194][ T1176] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 122.190485][ T1176] ? __create_object (mm/kmemleak.c:771) 
[ 122.190780][ T1176] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 122.191074][ T1176] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 122.191375][ T1176] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 122.191741][ T1176] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 122.192040][ T1176] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 122.192354][ T1176] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 122.192653][ T1176] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 122.192959][ T1176] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 122.193269][ T1176] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 122.193562][ T1176] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 122.193860][ T1176] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 122.194160][ T1176] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 122.194455][ T1176] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 122.194758][ T1176] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 122.195064][ T1176] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 122.195364][ T1176] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 122.195660][ T1176] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 122.195965][ T1176] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 122.196265][ 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) 
[ 122.196559][ T1176] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 122.196860][ T1176] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 122.197169][ T1176] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 122.197469][ T1176] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 122.197767][ T1176] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 122.198060][ T1176] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 122.198368][ T1176] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 122.198665][ T1176] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 122.198956][ T1176] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 122.199344][ T1176] ___sys_sendmsg (net/socket.c:2670) 
[ 122.199635][ T1176] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 122.199928][ T1176] ? __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) 
[ 122.200306][ T1176] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 122.200605][ T1176] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 122.200904][ T1176] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 122.201218][ T1176] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 122.201525][ T1176] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 122.201819][ T1176] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 122.202131][ T1176] __sys_sendmsg (net/socket.c:2700) 
[ 122.202427][ T1176] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 122.202791][ T1176] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 122.203117][ T1176] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 122.203415][ T1176] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 122.203720][ T1176] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  122.204084][ T1176] RIP: 0033:0x7ff7ca1c11e7
[ 122.204395][ 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)
[  122.205465][ T1176] RSP: 002b:00007fffca05bde8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  122.205915][ T1176] RAX: ffffffffffffffda RBX: 00007fffca05c520 RCX: 00007ff7ca1c11e7
[  122.206360][ T1176] RDX: 0000000000000000 RSI: 00007fffca05be50 RDI: 0000000000000005
[  122.206800][ T1176] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  122.207245][ T1176] R10: 000000002ccc4910 R11: 0000000000000246 R12: 0000000000000004
[  122.207691][ T1176] R13: 00000000686e2976 R14: 0000000000499600 R15: 0000000000000000
| [  122.530116][ T1178] ------------[ cut here ]------------
| [ 122.530430][ T1178] WARNING: CPU: 0 PID: 1178 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) 
| [  122.531034][ T1178] Modules linked in: cls_matchall act_gact cls_flower sch_ingress vxlan
| [  122.532144][ T1178] Tainted: [W]=WARN
[  122.532380][ T1178] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 122.532758][ T1178] 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) 
[ 122.533081][ T1178] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  122.534199][ T1178] RSP: 0018:ffffc900012e7080 EFLAGS: 00010246
[  122.534588][ T1178] RAX: 0000000000000000 RBX: ffff88800c3da000 RCX: 0000000000000001
[  122.535044][ T1178] RDX: 0000000000000000 RSI: ffffffff95510759 RDI: ffffffff94c58280
[  122.535513][ T1178] RBP: ffffc900012e7168 R08: 0000000000000000 R09: 0000000000000000
[  122.535967][ T1178] R10: ffffc900012e7198 R11: ffffffff968ceab8 R12: 1ffff9200025ce14
[  122.536430][ T1178] R13: 00000000000005dc R14: ffffc900012e7198 R15: ffff88800c3daf48
[  122.536887][ T1178] FS:  00007f8e96294800(0000) GS:ffff8880d5399000(0000) knlGS:0000000000000000
[  122.537431][ T1178] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  122.537817][ T1178] CR2: 00007f8e964efb78 CR3: 000000000d7f0006 CR4: 0000000000772ef0
[  122.538291][ T1178] PKRU: 55555554
[  122.538522][ T1178] Call Trace:
[  122.538752][ T1178]  <TASK>
[ 122.538910][ T1178] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 122.539230][ T1178] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 122.539540][ T1178] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 122.539921][ T1178] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 122.540246][ T1178] netif_set_mtu (net/core/dev.c:9652) 
[ 122.540551][ T1178] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 122.540867][ T1178] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 122.541258][ T1178] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 122.541489][ T1178] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 122.541808][ T1178] br_add_if (net/bridge/br_if.c:697) 
[ 122.542055][ T1178] do_set_master (net/core/rtnetlink.c:2948) 
[ 122.542375][ T1178] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 122.542681][ T1178] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 122.543004][ T1178] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 122.543313][ T1178] ? __dev_get_by_name (net/core/dev.c:865) 
[ 122.543619][ T1178] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 122.543928][ T1178] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 122.544245][ T1178] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 122.544546][ T1178] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 122.544855][ T1178] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 122.545181][ T1178] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 122.545497][ T1178] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 122.545812][ T1178] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 122.546124][ T1178] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 122.546444][ T1178] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 122.546743][ T1178] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 122.547050][ T1178] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 122.547367][ T1178] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 122.547681][ T1178] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 122.547984][ T1178] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 122.548298][ T1178] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 122.548621][ T1178] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 122.548921][ T1178] ? 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) 
[ 122.549235][ T1178] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 122.549546][ T1178] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 122.549849][ T1178] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 122.550183][ T1178] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 122.550489][ T1178] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 122.550799][ T1178] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 122.551116][ T1178] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 122.551421][ T1178] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 122.551721][ T1178] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 122.552119][ T1178] ___sys_sendmsg (net/socket.c:2670) 
[ 122.552426][ T1178] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 122.552729][ T1178] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 122.553052][ T1178] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 122.553360][ T1178] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 122.553669][ T1178] ? __handle_mm_fault (mm/memory.c:6212) 
[ 122.553971][ T1178] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 122.554288][ T1178] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 122.554618][ T1178] __sys_sendmsg (net/socket.c:2700) 
[ 122.554919][ T1178] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 122.555235][ T1178] ? 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) 
[ 122.555544][ T1178] ? 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) 
[ 122.555845][ T1178] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 122.556159][ T1178] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 122.556462][ T1178] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  122.556835][ T1178] RIP: 0033:0x7f8e964611e7
[ 122.557155][ T1178] 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)
[  122.558373][ T1178] RSP: 002b:00007ffe842e36e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  122.558832][ T1178] RAX: ffffffffffffffda RBX: 00007ffe842e3e20 RCX: 00007f8e964611e7
[  122.559294][ T1178] RDX: 0000000000000000 RSI: 00007ffe842e3750 RDI: 0000000000000005
[  122.559757][ T1178] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  122.560216][ T1178] R10: 00007f8e964efac0 R11: 0000000000000246 R12: 00007ffe842e3e58


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