======================================
| [   35.199718][  T421] GACT probability NOT on
| [   41.384482][  T478] ------------[ cut here ]------------
| [ 41.384995][ T478] WARNING: CPU: 1 PID: 478 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) 
| [   41.385773][  T478] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
[   41.387736][  T478] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.388124][ T478] 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) 
[ 41.388649][ T478] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 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 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  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
[   41.389912][  T478] RSP: 0018:ffffc90000767140 EFLAGS: 00010246
[   41.390418][  T478] RAX: 0000000000000000 RBX: ffff888009004000 RCX: 0000000000000001
[   41.390877][  T478] RDX: 0000000000000000 RSI: ffffffff98a9b941 RDI: ffffffff982555e0
[   41.391446][  T478] RBP: ffffc90000767230 R08: ffff88800a272000 R09: 0000000000000000
[   41.391892][  T478] R10: ffffc900007675c8 R11: ffffffff99850668 R12: 1ffff920000ece2c
[   41.392463][  T478] R13: 00000000000007d0 R14: ffffc90000767880 R15: ffff888009852360
[   41.392948][  T478] FS:  00007fa50e389800(0000) GS:ffff88809b737000(0000) knlGS:0000000000000000
[   41.393624][  T478] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.394009][  T478] CR2: 00000000004e5aa0 CR3: 00000000098a5002 CR4: 0000000000772ef0
[   41.394584][  T478] PKRU: 55555554
[   41.394820][  T478] Call Trace:
[   41.395042][  T478]  <TASK>
[ 41.395195][ T478] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.395633][ T478] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.395929][ T478] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.396221][ T478] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.396648][ T478] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.396944][ T478] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.397262][ T478] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.397713][ T478] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.398085][ T478] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.398385][ T478] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.398679][ T478] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.398968][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.399265][ T478] ? __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) 
[ 41.399567][ T478] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.399931][ T478] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.400234][ T478] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.400532][ T478] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.400827][ T478] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.401123][ T478] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.401428][ T478] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.401715][ T478] ? __create_object (mm/kmemleak.c:771) 
[ 41.402011][ T478] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.402312][ T478] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.402618][ T478] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.402959][ T478] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.403295][ T478] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.403577][ T478] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.403849][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.404133][ T478] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.404436][ T478] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.404708][ T478] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.404984][ T478] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.405256][ T478] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.405552][ T478] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.405835][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.406114][ T478] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.406429][ T478] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.406709][ T478] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.406994][ T478] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.407289][ T478] ? 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) 
[ 41.407575][ T478] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 41.407854][ T478] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.408127][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.408417][ T478] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.408707][ T478] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.408982][ T478] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.409262][ T478] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.409565][ T478] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.409838][ T478] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.410189][ T478] ___sys_sendmsg (net/socket.c:2670) 
[ 41.410474][ T478] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 41.410756][ T478] ? __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) 
[ 41.411097][ T478] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.411396][ T478] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.411682][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.411963][ T478] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.412244][ T478] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 41.412531][ T478] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.412814][ T478] __sys_sendmsg (net/socket.c:2700) 
[ 41.413087][ T478] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 41.413439][ T478] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.413736][ T478] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.414018][ T478] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.414326][ T478] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.414668][  T478] RIP: 0033:0x7fa50e5561e7
[ 41.414959][ T478] 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)
[   41.415956][  T478] RSP: 002b:00007ffcd61f2ba8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.416416][  T478] RAX: ffffffffffffffda RBX: 00007ffcd61f32d0 RCX: 00007fa50e5561e7
[   41.416841][  T478] RDX: 0000000000000000 RSI: 00007ffcd61f2c10 RDI: 0000000000000005
[   41.417266][  T478] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   41.417705][  T478] R10: 00007fa50e453ee8 R11: 0000000000000246 R12: 0000000000000004
[   41.418126][  T478] R13: 00000000686e3e18 R14: 0000000000499600 R15: 0000000000000000
| [   41.544993][  T479] ------------[ cut here ]------------
| [ 41.545349][ T479] WARNING: CPU: 0 PID: 479 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) 
| [   41.545994][  T479] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   41.547259][  T479] Tainted: [W]=WARN
[   41.547501][  T479] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.547855][ T479] 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) 
[ 41.548161][ T479] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 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 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  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
[   41.549194][  T479] RSP: 0018:ffffc90000767140 EFLAGS: 00010246
[   41.549569][  T479] RAX: 0000000000000000 RBX: ffff88800a8fc000 RCX: 0000000000000001
[   41.549984][  T479] RDX: 0000000000000000 RSI: ffffffff98a9b941 RDI: ffffffff982555e0
[   41.550428][  T479] RBP: ffffc90000767230 R08: ffff888009303800 R09: 0000000000000000
[   41.550845][  T479] R10: ffffc900007675c8 R11: ffffffff99850668 R12: 1ffff920000ece2c
[   41.551261][  T479] R13: 00000000000007d0 R14: ffffc90000767880 R15: ffff888009852de0
[   41.551708][  T479] FS:  00007f87ad4cd800(0000) GS:ffff88809b6b7000(0000) knlGS:0000000000000000
[   41.552204][  T479] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.552587][  T479] CR2: 00000000004e5aa8 CR3: 0000000005bfe004 CR4: 0000000000772ef0
[   41.553030][  T479] PKRU: 55555554
[   41.553253][  T479] Call Trace:
[   41.553492][  T479]  <TASK>
[ 41.553641][ T479] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.553939][ T479] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.554244][ T479] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.554579][ T479] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.554860][ T479] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.555145][ T479] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.555481][ T479] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.555768][ T479] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.556120][ T479] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.556422][ T479] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.556713][ T479] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.556994][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.557327][ T479] ? __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) 
[ 41.557626][ T479] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.557975][ T479] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.558256][ T479] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.558567][ T479] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.558856][ T479] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.559134][ T479] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.559461][ T479] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.559738][ T479] ? __create_object (mm/kmemleak.c:771) 
[ 41.560015][ T479] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.560315][ T479] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.560609][ T479] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.560965][ T479] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.561257][ T479] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.561571][ T479] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.561846][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.562142][ T479] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.562446][ T479] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.562740][ T479] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.563027][ T479] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.563339][ T479] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.563655][ T479] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.563956][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.564238][ T479] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.564541][ T479] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.564824][ T479] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.565131][ T479] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.565468][ T479] ? 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) 
[ 41.565902][ T479] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 41.566197][ T479] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.566516][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.566815][ T479] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.567128][ T479] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.567465][ T479] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.567773][ T479] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.568080][ T479] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.568390][ T479] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.568768][ T479] ___sys_sendmsg (net/socket.c:2670) 
[ 41.569077][ T479] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 41.569407][ T479] ? __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) 
[ 41.569789][ T479] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.570089][ T479] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.570403][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.570726][ T479] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.571003][ T479] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 41.571296][ T479] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.571585][ T479] __sys_sendmsg (net/socket.c:2700) 
[ 41.571858][ T479] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 41.572201][ T479] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.572519][ T479] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.572802][ T479] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.573086][ T479] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.573452][  T479] RIP: 0033:0x7f87ad69a1e7
[ 41.573742][ T479] 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)
[   41.574763][  T479] RSP: 002b:00007ffe864213e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.575183][  T479] RAX: ffffffffffffffda RBX: 00007ffe86421b10 RCX: 00007f87ad69a1e7
[   41.575620][  T479] RDX: 0000000000000000 RSI: 00007ffe86421450 RDI: 0000000000000005
[   41.576033][  T479] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   41.576476][  T479] R10: 00007f87ad597ee8 R11: 0000000000000246 R12: 0000000000000004
[   41.576887][  T479] R13: 00000000686e3e18 R14: 0000000000499600 R15: 0000000000000000
| [   41.721914][  T480] ------------[ cut here ]------------
| [ 41.722310][ T480] WARNING: CPU: 2 PID: 480 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) 
| [   41.722885][  T480] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   41.724128][  T480] Tainted: [W]=WARN
[   41.724388][  T480] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.724751][ T480] 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) 
[ 41.725076][ T480] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 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 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  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
[   41.726241][  T480] RSP: 0018:ffffc90000787140 EFLAGS: 00010246
[   41.726661][  T480] RAX: 0000000000000000 RBX: ffff888005bc9000 RCX: 0000000000000001
[   41.727126][  T480] RDX: 0000000000000000 RSI: ffffffff98a9b941 RDI: ffffffff982555e0
[   41.727587][  T480] RBP: ffffc90000787230 R08: ffff888004d60800 R09: 0000000000000000
[   41.728031][  T480] R10: ffffc900007875c8 R11: ffffffff99850668 R12: 1ffff920000f0e2c
[   41.728539][  T480] R13: 00000000000007d0 R14: ffffc90000787880 R15: ffff888009853860
[   41.729002][  T480] FS:  00007f0cf7275800(0000) GS:ffff88809b7b7000(0000) knlGS:0000000000000000
[   41.729568][  T480] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.729948][  T480] CR2: 00000000004e73b0 CR3: 000000000d34b002 CR4: 0000000000772ef0
[   41.730408][  T480] PKRU: 55555554
[   41.730651][  T480] Call Trace:
[   41.730888][  T480]  <TASK>
[ 41.731061][ T480] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.731386][ T480] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.731697][ T480] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.732008][ T480] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.732394][ T480] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.732709][ T480] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.733030][ T480] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.733369][ T480] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.733762][ T480] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.734067][ T480] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.734385][ T480] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.734696][ T480] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.734986][ T480] ? __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) 
[ 41.735297][ T480] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.735658][ T480] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.735967][ T480] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.736344][ T480] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.736655][ T480] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.736949][ T480] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.737263][ T480] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.737586][ T480] ? __create_object (mm/kmemleak.c:771) 
[ 41.737898][ T480] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.738331][ T480] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.738642][ T480] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.739117][ T480] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.739449][ T480] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.739851][ T480] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.740194][ T480] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.740550][ T480] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.740846][ T480] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.741147][ T480] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.741460][ T480] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.741755][ T480] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.742062][ T480] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.742374][ T480] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.742695][ T480] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.743001][ T480] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.743327][ T480] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.743643][ T480] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.743961][ T480] ? 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) 
[ 41.744351][ T480] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 41.744666][ T480] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.744977][ T480] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.745333][ T480] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.745652][ T480] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.745962][ T480] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.746392][ T480] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.746717][ T480] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.747006][ T480] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.747407][ T480] ___sys_sendmsg (net/socket.c:2670) 
[ 41.747702][ T480] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 41.747994][ T480] ? __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) 
[ 41.748453][ T480] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.748822][ T480] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.749211][ T480] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.749605][ T480] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.750015][ T480] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 41.750416][ T480] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.750786][ T480] __sys_sendmsg (net/socket.c:2700) 
[ 41.751116][ T480] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 41.751779][ T480] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.752335][ T480] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.752854][ T480] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.753396][ T480] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.754053][  T480] RIP: 0033:0x7f0cf74421e7
[ 41.754622][ T480] 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)
[   41.756403][  T480] RSP: 002b:00007ffef75924e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.757164][  T480] RAX: ffffffffffffffda RBX: 00007ffef7592c10 RCX: 00007f0cf74421e7
[   41.757953][  T480] RDX: 0000000000000000 RSI: 00007ffef7592550 RDI: 0000000000000005
[   41.758747][  T480] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   41.759531][  T480] R10: 00007f0cf733fee8 R11: 0000000000000246 R12: 0000000000000004
[   41.760359][  T480] R13: 00000000686e3e18 R14: 0000000000499600 R15: 0000000000000000
| [   41.888060][  T481] ------------[ cut here ]------------
| [ 41.890030][ T481] WARNING: CPU: 3 PID: 481 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) 
| [   41.890638][  T481] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   41.891846][  T481] Tainted: [W]=WARN
[   41.892062][  T481] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.892428][ T481] 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) 
[ 41.892720][ T481] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 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 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  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
[   41.893796][  T481] RSP: 0018:ffffc90000797140 EFLAGS: 00010246
[   41.894155][  T481] RAX: 0000000000000000 RBX: ffff88800a929000 RCX: 0000000000000001
[   41.894581][  T481] RDX: 0000000000000000 RSI: ffffffff98a9b941 RDI: ffffffff982555e0
[   41.894998][  T481] RBP: ffffc90000797230 R08: ffff88800bc9d000 R09: 0000000000000000
[   41.895424][  T481] R10: ffffc900007975c8 R11: ffffffff99850668 R12: 1ffff920000f2e2c
[   41.895838][  T481] R13: 00000000000007d0 R14: ffffc90000797880 R15: ffff88800eb84e60
[   41.896245][  T481] FS:  00007f0b3a80b800(0000) GS:ffff88809b837000(0000) knlGS:0000000000000000
[   41.896769][  T481] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.897145][  T481] CR2: 00000000004e5ab0 CR3: 000000000d34b002 CR4: 0000000000772ef0
[   41.897581][  T481] PKRU: 55555554
[   41.897806][  T481] Call Trace:
[   41.898018][  T481]  <TASK>
[ 41.898159][ T481] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.898458][ T481] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.898736][ T481] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.899037][ T481] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.899321][ T481] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.899601][ T481] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.899880][ T481] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.900176][ T481] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.900540][ T481] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.900824][ T481] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.901097][ T481] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.901385][ T481] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.901677][ T481] ? __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) 
[ 41.901953][ T481] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.902309][ T481] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.902601][ T481] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.902876][ T481] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.903167][ T481] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.903457][ T481] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.903734][ T481] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.904006][ T481] ? __create_object (mm/kmemleak.c:771) 
[ 41.904297][ T481] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.904595][ T481] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.904873][ T481] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.905226][ T481] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.905526][ T481] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.905809][ T481] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.906089][ T481] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.906383][ T481] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.906664][ T481] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.906970][ T481] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.907261][ T481] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.907557][ T481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.907835][ T481] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.908160][ T481] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.908645][ T481] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.909125][ T481] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.909598][ T481] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.910083][ T481] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.910569][ T481] ? 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) 
[ 41.911033][ T481] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 41.911577][ T481] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.912074][ T481] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.912657][ T481] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.913160][ T481] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.913668][ T481] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.914077][ T481] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.914385][ T481] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.914673][ T481] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.915051][ T481] ___sys_sendmsg (net/socket.c:2670) 
[ 41.915354][ T481] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 41.915653][ T481] ? __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) 
[ 41.916045][ T481] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.916363][ T481] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.916666][ T481] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.916958][ T481] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.917396][ T481] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 41.917691][ T481] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.917999][ T481] __sys_sendmsg (net/socket.c:2700) 
[ 41.918298][ T481] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 41.918655][ T481] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.918976][ T481] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.919301][ T481] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.919599][ T481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.919951][  T481] RIP: 0033:0x7f0b3a9d81e7
[ 41.920265][ T481] 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)
[   41.921322][  T481] RSP: 002b:00007ffeb82ff528 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.921750][  T481] RAX: ffffffffffffffda RBX: 00007ffeb82ffc50 RCX: 00007f0b3a9d81e7
[   41.922206][  T481] RDX: 0000000000000000 RSI: 00007ffeb82ff590 RDI: 0000000000000005
[   41.922668][  T481] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   41.923203][  T481] R10: 00007f0b3a8d5ee8 R11: 0000000000000246 R12: 0000000000000004
[   41.923963][  T481] R13: 00000000686e3e18 R14: 0000000000499600 R15: 0000000000000000
| [   42.061458][  T482] ------------[ cut here ]------------
| [ 42.061795][ T482] WARNING: CPU: 0 PID: 482 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) 
| [   42.062385][  T482] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   42.063555][  T482] Tainted: [W]=WARN
[   42.063772][  T482] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.064118][ T482] 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) 
[ 42.064422][ T482] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 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 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  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
[   42.065431][  T482] RSP: 0018:ffffc90000797140 EFLAGS: 00010246
[   42.065796][  T482] RAX: 0000000000000000 RBX: ffff888005064000 RCX: 0000000000000001
[   42.066260][  T482] RDX: 0000000000000000 RSI: ffffffff98a9b941 RDI: ffffffff982555e0
[   42.066687][  T482] RBP: ffffc90000797230 R08: ffff88800bf88800 R09: 0000000000000000
[   42.067121][  T482] R10: ffffc900007975c8 R11: ffffffff99850668 R12: 1ffff920000f2e2c
[   42.067561][  T482] R13: 00000000000007d0 R14: ffffc90000797880 R15: ffff88800eb858e0
[   42.067988][  T482] FS:  00007ff0a0826800(0000) GS:ffff88809b6b7000(0000) knlGS:0000000000000000
[   42.068501][  T482] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.068855][  T482] CR2: 00000000004e55b8 CR3: 0000000005bfe006 CR4: 0000000000772ef0
[   42.069294][  T482] PKRU: 55555554
[   42.069514][  T482] Call Trace:
[   42.069723][  T482]  <TASK>
[ 42.069864][ T482] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.070160][ T482] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.070453][ T482] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.070738][ T482] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 42.071025][ T482] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 42.071331][ T482] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 42.071637][ T482] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 42.071934][ T482] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.072328][ T482] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.072636][ T482] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.072924][ T482] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.073245][ T482] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.073561][ T482] ? __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) 
[ 42.073843][ T482] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.074187][ T482] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.074522][ T482] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.074797][ T482] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.075074][ T482] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.075363][ T482] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.075652][ T482] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.075931][ T482] ? __create_object (mm/kmemleak.c:771) 
[ 42.076211][ T482] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.076512][ T482] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.076796][ T482] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.077158][ T482] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.077459][ T482] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.077739][ T482] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.078017][ T482] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.078312][ T482] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.078597][ T482] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.078872][ T482] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.079146][ T482] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.079436][ T482] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.079754][ T482] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.080033][ T482] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.080366][ T482] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.080657][ T482] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.080931][ T482] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.081240][ T482] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.081559][ T482] ? 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) 
[ 42.081836][ T482] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.082116][ T482] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.082420][ T482] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.082709][ T482] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.082990][ T482] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.083267][ T482] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.083568][ T482] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.083849][ T482] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.084122][ T482] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.084502][ T482] ___sys_sendmsg (net/socket.c:2670) 
[ 42.084772][ T482] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.085047][ T482] ? __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) 
[ 42.085404][ T482] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.085684][ T482] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.085962][ T482] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.086240][ T482] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.086577][ T482] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 42.086873][ T482] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.087171][ T482] __sys_sendmsg (net/socket.c:2700) 
[ 42.087471][ T482] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.087814][ T482] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.088104][ T482] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.088420][ T482] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.088702][ T482] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.089055][  T482] RIP: 0033:0x7ff0a09f31e7
[ 42.089364][ T482] 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)
[   42.090380][  T482] RSP: 002b:00007fffc894d4f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.090809][  T482] RAX: ffffffffffffffda RBX: 00007fffc894dc20 RCX: 00007ff0a09f31e7
[   42.091225][  T482] RDX: 0000000000000000 RSI: 00007fffc894d560 RDI: 0000000000000005
[   42.091678][  T482] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   42.092094][  T482] R10: 00007ff0a08f0ee8 R11: 0000000000000246 R12: 0000000000000004
[   42.092533][  T482] R13: 00000000686e3e18 R14: 0000000000499600 R15: 0000000000000000
| [   42.214385][  T483] ------------[ cut here ]------------
| [ 42.214720][ T483] WARNING: CPU: 1 PID: 483 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) 
| [   42.215291][  T483] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   42.216449][  T483] Tainted: [W]=WARN
[   42.216683][  T483] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.217046][ T483] 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) 
[ 42.217348][ T483] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 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 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  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
[   42.218377][  T483] RSP: 0018:ffffc900007a7140 EFLAGS: 00010246
[   42.218736][  T483] RAX: 0000000000000000 RBX: ffff8880050dc000 RCX: 0000000000000001
[   42.219148][  T483] RDX: 0000000000000000 RSI: ffffffff98a9b941 RDI: ffffffff982555e0
[   42.219575][  T483] RBP: ffffc900007a7230 R08: ffff888004d36800 R09: 0000000000000000
[   42.220016][  T483] R10: ffffc900007a75c8 R11: ffffffff99850668 R12: 1ffff920000f4e2c
[   42.220447][  T483] R13: 00000000000007d0 R14: ffffc900007a7880 R15: ffff88800eb86360
[   42.220863][  T483] FS:  00007f91c472f800(0000) GS:ffff88809b737000(0000) knlGS:0000000000000000
[   42.221414][  T483] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.221764][  T483] CR2: 00000000004e5ac8 CR3: 0000000005bfe003 CR4: 0000000000772ef0
[   42.222186][  T483] PKRU: 55555554
[   42.222415][  T483] Call Trace:
[   42.222626][  T483]  <TASK>
[ 42.222770][ T483] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.223058][ T483] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.223420][ T483] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.223705][ T483] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 42.223989][ T483] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 42.224265][ T483] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 42.224723][ T483] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 42.225012][ T483] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.225497][ T483] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.225777][ T483] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.226053][ T483] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.226510][ T483] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.226791][ T483] ? __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) 
[ 42.227092][ T483] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.227616][ T483] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.227898][ T483] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.228174][ T483] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.228567][ T483] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.228879][ T483] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.229172][ T483] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.229464][ T483] ? __create_object (mm/kmemleak.c:771) 
[ 42.229744][ T483] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.230023][ T483] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.230309][ T483] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.230652][ T483] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.230932][ T483] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.231214][ T483] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.231509][ T483] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.231815][ T483] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.232099][ T483] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.232441][ T483] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.232786][ T483] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.233065][ T483] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.233369][ T483] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.233652][ T483] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.233934][ T483] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.234221][ T483] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.234508][ T483] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.234812][ T483] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.235090][ T483] ? 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) 
[ 42.235388][ T483] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.235681][ T483] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.235964][ T483] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.236244][ T483] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.236536][ T483] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.236819][ T483] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.237143][ T483] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.237442][ T483] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.237716][ T483] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.238074][ T483] ___sys_sendmsg (net/socket.c:2670) 
[ 42.238364][ T483] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.238645][ T483] ? __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) 
[ 42.238991][ T483] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.239307][ T483] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.239604][ T483] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.239888][ T483] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.240169][ T483] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 42.240460][ T483] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.240746][ T483] __sys_sendmsg (net/socket.c:2700) 
[ 42.241024][ T483] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.241379][ T483] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.241668][ T483] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.241948][ T483] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.242230][ T483] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.242586][  T483] RIP: 0033:0x7f91c48fc1e7
[ 42.242893][ T483] 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)
[   42.243899][  T483] RSP: 002b:00007ffd94f425b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.244345][  T483] RAX: ffffffffffffffda RBX: 00007ffd94f42ce0 RCX: 00007f91c48fc1e7
[   42.244765][  T483] RDX: 0000000000000000 RSI: 00007ffd94f42620 RDI: 0000000000000005
[   42.245181][  T483] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   42.245601][  T483] R10: 00007f91c47f9ee8 R11: 0000000000000246 R12: 0000000000000004
[   42.246018][  T483] R13: 00000000686e3e18 R14: 0000000000499600 R15: 0000000000000000
| [   42.391146][  T484] ------------[ cut here ]------------
| [ 42.391508][ T484] WARNING: CPU: 0 PID: 484 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) 
| [   42.392080][  T484] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   42.393273][  T484] Tainted: [W]=WARN
[   42.393505][  T484] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.393849][ T484] 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) 
[ 42.394141][ T484] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 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 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  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
[   42.395185][  T484] RSP: 0018:ffffc900007b7140 EFLAGS: 00010246
[   42.395561][  T484] RAX: 0000000000000000 RBX: ffff8880050d9000 RCX: 0000000000000001
[   42.395983][  T484] RDX: 0000000000000000 RSI: ffffffff98a9b941 RDI: ffffffff982555e0
[   42.396422][  T484] RBP: ffffc900007b7230 R08: ffff88800bad8800 R09: 0000000000000000
[   42.396855][  T484] R10: ffffc900007b75c8 R11: ffffffff99850668 R12: 1ffff920000f6e2c
[   42.397387][  T484] R13: 00000000000007d0 R14: ffffc900007b7880 R15: ffff88800eb86de0
[   42.397805][  T484] FS:  00007f1b7c8ae800(0000) GS:ffff88809b6b7000(0000) knlGS:0000000000000000
[   42.398315][  T484] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.398675][  T484] CR2: 00000000004e5ac0 CR3: 000000000d34b004 CR4: 0000000000772ef0
[   42.399102][  T484] PKRU: 55555554
[   42.399336][  T484] Call Trace:
[   42.399673][  T484]  <TASK>
[ 42.399820][ T484] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.400119][ T484] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.400428][ T484] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.400715][ T484] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 42.400995][ T484] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 42.401309][ T484] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 42.401599][ T484] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 42.401884][ T484] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.402240][ T484] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.402540][ T484] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.402816][ T484] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.403107][ T484] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.403429][ T484] ? __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) 
[ 42.403711][ T484] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.404076][ T484] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.404403][ T484] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.404679][ T484] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.404960][ T484] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.405245][ T484] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.405569][ T484] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.405873][ T484] ? __create_object (mm/kmemleak.c:771) 
[ 42.406156][ T484] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.406463][ T484] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.406749][ T484] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.407107][ T484] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.407415][ T484] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.407731][ T484] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.408010][ T484] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.408321][ T484] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.408617][ T484] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.408892][ T484] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.409183][ T484] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.409483][ T484] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.409763][ T484] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.410050][ T484] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.410356][ T484] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.410636][ T484] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.410913][ T484] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.411205][ T484] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.411534][ T484] ? 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) 
[ 42.411813][ T484] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.412101][ T484] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.412400][ T484] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.412685][ T484] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.412967][ T484] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.413245][ T484] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.413554][ T484] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.413837][ T484] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.414115][ T484] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.414494][ T484] ___sys_sendmsg (net/socket.c:2670) 
[ 42.414768][ T484] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.415045][ T484] ? __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) 
[ 42.415416][ T484] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.415699][ T484] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.415983][ T484] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.416300][ T484] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.416588][ T484] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 42.416872][ T484] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.417171][ T484] __sys_sendmsg (net/socket.c:2700) 
[ 42.417474][ T484] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.417829][ T484] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.418119][ T484] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.418429][ T484] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.418710][ T484] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.419052][  T484] RIP: 0033:0x7f1b7ca7b1e7
[ 42.419366][ T484] 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)
[   42.420382][  T484] RSP: 002b:00007ffd4e05fc08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.420837][  T484] RAX: ffffffffffffffda RBX: 00007ffd4e060330 RCX: 00007f1b7ca7b1e7
[   42.421253][  T484] RDX: 0000000000000000 RSI: 00007ffd4e05fc70 RDI: 0000000000000005
[   42.421694][  T484] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   42.422110][  T484] R10: 00007f1b7c978ee8 R11: 0000000000000246 R12: 0000000000000004
[   42.422557][  T484] R13: 00000000686e3e19 R14: 0000000000499600 R15: 0000000000000000
| [   42.546919][  T485] ------------[ cut here ]------------
| [ 42.547256][ T485] WARNING: CPU: 1 PID: 485 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) 
| [   42.547838][  T485] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   42.548995][  T485] Tainted: [W]=WARN
[   42.549202][  T485] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.549556][ T485] 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) 
[ 42.549843][ T485] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 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 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  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
[   42.550840][  T485] RSP: 0018:ffffc900007d7140 EFLAGS: 00010246
[   42.551192][  T485] RAX: 0000000000000000 RBX: ffff888009a4c000 RCX: 0000000000000001
[   42.551621][  T485] RDX: 0000000000000000 RSI: ffffffff98a9b941 RDI: ffffffff982555e0
[   42.552033][  T485] RBP: ffffc900007d7230 R08: ffff88800b972000 R09: 0000000000000000
[   42.553858][  T485] R10: ffffc900007d75c8 R11: ffffffff99850668 R12: 1ffff920000fae2c
[   42.554272][  T485] R13: 00000000000007d0 R14: ffffc900007d7880 R15: ffff88800eb87860
[   42.554855][  T485] FS:  00007f139ea73800(0000) GS:ffff88809b737000(0000) knlGS:0000000000000000
[   42.555438][  T485] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.555793][  T485] CR2: 00000000004e73c8 CR3: 000000000d0f5005 CR4: 0000000000772ef0
[   42.556206][  T485] PKRU: 55555554
[   42.556423][  T485] Call Trace:
[   42.556634][  T485]  <TASK>
[ 42.556776][ T485] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.557074][ T485] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.557365][ T485] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.557656][ T485] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 42.557934][ T485] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 42.558211][ T485] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 42.558506][ T485] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 42.558808][ T485] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.559161][ T485] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.559507][ T485] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.559798][ T485] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.560077][ T485] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.560368][ T485] ? __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) 
[ 42.560645][ T485] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.560989][ T485] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.561272][ T485] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.561562][ T485] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.561843][ T485] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.562126][ T485] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.562418][ T485] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.562716][ T485] ? __create_object (mm/kmemleak.c:771) 
[ 42.563002][ T485] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.563305][ T485] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.563586][ T485] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.563941][ T485] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.564227][ T485] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.564560][ T485] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.564838][ T485] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.565119][ T485] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.565407][ T485] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.565682][ T485] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.565997][ T485] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.566299][ T485] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.566596][ T485] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.566879][ T485] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.567199][ T485] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.567510][ T485] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.567790][ T485] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.568081][ T485] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.568374][ T485] ? 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) 
[ 42.568654][ T485] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.568935][ T485] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.569212][ T485] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.569503][ T485] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.569786][ T485] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.570077][ T485] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.570387][ T485] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.570689][ T485] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.570968][ T485] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.571365][ T485] ___sys_sendmsg (net/socket.c:2670) 
[ 42.571642][ T485] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.571919][ T485] ? __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) 
[ 42.572265][ T485] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.572563][ T485] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.572881][ T485] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.573162][ T485] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.573449][ T485] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 42.573739][ T485] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.574023][ T485] __sys_sendmsg (net/socket.c:2700) 
[ 42.574321][ T485] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.574696][ T485] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.575010][ T485] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.575318][ T485] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.575606][ T485] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.575945][  T485] RIP: 0033:0x7f139ec401e7
[ 42.576231][ T485] 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)
[   42.577263][  T485] RSP: 002b:00007ffcc398ffc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.577686][  T485] RAX: ffffffffffffffda RBX: 00007ffcc39906f0 RCX: 00007f139ec401e7
[   42.578097][  T485] RDX: 0000000000000000 RSI: 00007ffcc3990030 RDI: 0000000000000005
[   42.578520][  T485] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   42.578952][  T485] R10: 00007f139eb3dee8 R11: 0000000000000246 R12: 0000000000000004
[   42.579380][  T485] R13: 00000000686e3e19 R14: 0000000000499600 R15: 0000000000000000
| [   42.710275][  T486] ------------[ cut here ]------------
| [ 42.710623][ T486] WARNING: CPU: 0 PID: 486 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) 
| [   42.711186][  T486] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   42.713366][  T486] Tainted: [W]=WARN
[   42.713577][  T486] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.713918][ T486] 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) 
[ 42.714205][ T486] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 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 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  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
[   42.715210][  T486] RSP: 0018:ffffc900007d7140 EFLAGS: 00010246
[   42.715593][  T486] RAX: 0000000000000000 RBX: ffff88800aad9000 RCX: 0000000000000001
[   42.716004][  T486] RDX: 0000000000000000 RSI: ffffffff98a9b941 RDI: ffffffff982555e0
[   42.716440][  T486] RBP: ffffc900007d7230 R08: ffff88800ab7d000 R09: 0000000000000000
[   42.716848][  T486] R10: ffffc900007d75c8 R11: ffffffff99850668 R12: 1ffff920000fae2c
[   42.717267][  T486] R13: 00000000000007d0 R14: ffffc900007d7880 R15: ffff88800eb843e0
[   42.717701][  T486] FS:  00007f45992e9800(0000) GS:ffff88809b6b7000(0000) knlGS:0000000000000000
[   42.718185][  T486] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.718566][  T486] CR2: 00000000004e5ab8 CR3: 000000000d34b006 CR4: 0000000000772ef0
[   42.719008][  T486] PKRU: 55555554
[   42.719221][  T486] Call Trace:
[   42.719460][  T486]  <TASK>
[ 42.719603][ T486] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.719889][ T486] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.720162][ T486] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.720461][ T486] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 42.720737][ T486] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 42.721016][ T486] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 42.721318][ T486] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 42.721602][ T486] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.721952][ T486] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.722231][ T486] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.722520][ T486] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.722799][ T486] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.723078][ T486] ? __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) 
[ 42.723404][ T486] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.723746][ T486] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.724023][ T486] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.724317][ T486] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.724596][ T486] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.724874][ T486] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.725147][ T486] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.725440][ T486] ? __create_object (mm/kmemleak.c:771) 
[ 42.725719][ T486] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.725994][ T486] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.726268][ T486] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.726640][ T486] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.726923][ T486] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.727214][ T486] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.727518][ T486] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.727798][ T486] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.728077][ T486] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.728370][ T486] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.728653][ T486] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.728930][ T486] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.729205][ T486] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.729505][ T486] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.729786][ T486] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.730062][ T486] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.730363][ T486] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.730652][ T486] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.730935][ T486] ? 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) 
[ 42.731216][ T486] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.731525][ T486] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.731800][ T486] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.732083][ T486] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.732387][ T486] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.732664][ T486] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.732966][ T486] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.733253][ T486] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.733554][ T486] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.733910][ T486] ___sys_sendmsg (net/socket.c:2670) 
[ 42.734182][ T486] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.734479][ T486] ? __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) 
[ 42.734839][ T486] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.735126][ T486] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.735436][ T486] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.735725][ T486] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.736001][ T486] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 42.736305][ T486] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.736592][ T486] __sys_sendmsg (net/socket.c:2700) 
[ 42.736863][ T486] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.737253][ T486] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.737567][ T486] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.737856][ T486] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.738135][ T486] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.738498][  T486] RIP: 0033:0x7f45994b61e7
[ 42.738789][ T486] 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)
[   42.739807][  T486] RSP: 002b:00007ffec154a2f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.740225][  T486] RAX: ffffffffffffffda RBX: 00007ffec154aa20 RCX: 00007f45994b61e7
[   42.740656][  T486] RDX: 0000000000000000 RSI: 00007ffec154a360 RDI: 0000000000000005
[   42.741066][  T486] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   42.741504][  T486] R10: 00007f45993b3ee8 R11: 0000000000000246 R12: 0000000000000004
[   42.741962][  T486] R13: 00000000686e3e19 R14: 0000000000499600 R15: 0000000000000000
| [   42.873434][  T487] ------------[ cut here ]------------
| [ 42.873756][ T487] WARNING: CPU: 3 PID: 487 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) 
| [   42.874342][  T487] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   42.875543][  T487] Tainted: [W]=WARN
[   42.875753][  T487] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.876097][ T487] 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) 
[ 42.876433][ T487] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 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 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  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
[   42.877643][  T487] RSP: 0018:ffffc900007e7140 EFLAGS: 00010246
[   42.877996][  T487] RAX: 0000000000000000 RBX: ffff888009009000 RCX: 0000000000000001
[   42.878544][  T487] RDX: 0000000000000000 RSI: ffffffff98a9b941 RDI: ffffffff982555e0
[   42.878956][  T487] RBP: ffffc900007e7230 R08: ffff88800eb0a000 R09: 0000000000000000
[   42.879571][  T487] R10: ffffc900007e75c8 R11: ffffffff99850668 R12: 1ffff920000fce2c
[   42.879985][  T487] R13: 00000000000007d0 R14: ffffc900007e7880 R15: ffff88800c1bb860
[   42.880406][  T487] FS:  00007f332ab3d800(0000) GS:ffff88809b837000(0000) knlGS:0000000000000000
[   42.880931][  T487] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.881300][  T487] CR2: 00000000004e59c0 CR3: 000000000bf05003 CR4: 0000000000772ef0
[   42.881715][  T487] PKRU: 55555554
[   42.881924][  T487] Call Trace:
[   42.882131][  T487]  <TASK>
[ 42.882273][ T487] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.882568][ T487] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.882858][ T487] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.883145][ T487] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 42.883444][ T487] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 42.883722][ T487] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 42.884001][ T487] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 42.884294][ T487] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.884643][ T487] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.884918][ T487] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.885221][ T487] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.885513][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.885791][ T487] ? __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) 
[ 42.886069][ T487] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.886442][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.886731][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.887024][ T487] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.887326][ T487] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.887605][ T487] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.887895][ T487] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.888170][ T487] ? __create_object (mm/kmemleak.c:771) 
[ 42.888464][ T487] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.888743][ T487] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.889021][ T487] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.889384][ T487] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.889678][ T487] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.889962][ T487] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.890236][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.890527][ T487] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.890801][ T487] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.891074][ T487] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.891366][ T487] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.891640][ T487] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.891923][ T487] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.892206][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.892503][ T487] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.892781][ T487] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.893071][ T487] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.893387][ T487] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.893664][ T487] ? 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) 
[ 42.893948][ T487] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.894227][ T487] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.894510][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.894792][ T487] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.895093][ T487] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.895382][ T487] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.895667][ T487] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.895957][ T487] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.896231][ T487] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.896595][ T487] ___sys_sendmsg (net/socket.c:2670) 
[ 42.896871][ T487] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.897192][ T487] ? __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) 
[ 42.897549][ T487] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.897830][ T487] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.898115][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.898406][ T487] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.898686][ T487] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 42.898964][ T487] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.899246][ T487] __sys_sendmsg (net/socket.c:2700) 
[ 42.899538][ T487] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.899881][ T487] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.900172][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.900459][ T487] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.900734][ T487] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.901075][  T487] RIP: 0033:0x7f332ad0a1e7
[ 42.901373][ T487] 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)
[   42.902400][  T487] RSP: 002b:00007ffd6928a788 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.902847][  T487] RAX: ffffffffffffffda RBX: 00007ffd6928aeb0 RCX: 00007f332ad0a1e7
[   42.903259][  T487] RDX: 0000000000000000 RSI: 00007ffd6928a7f0 RDI: 0000000000000005
[   42.903687][  T487] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   42.904104][  T487] R10: 00007f332ac07ee8 R11: 0000000000000246 R12: 0000000000000004


Finger prints:
netif_set_mtu_ext:rtnl_newlink:rtnetlink_rcv_msg:netlink_rcv_skb:netlink_unicast