======================================
| [   34.697884][  T421] GACT probability NOT on
| [   40.791302][  T478] ------------[ cut here ]------------
| [ 40.791856][ T478] WARNING: CPU: 3 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) 
| [   40.792477][  T478] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
[   40.793947][  T478] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 40.794321][ 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) 
[ 40.794633][ T478] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   40.795793][  T478] RSP: 0018:ffffc90000617140 EFLAGS: 00010246
[   40.796170][  T478] RAX: 0000000000000000 RBX: ffff8880088b9000 RCX: 0000000000000001
[   40.796601][  T478] RDX: 0000000000000000 RSI: ffffffffa129b939 RDI: ffffffffa0a555e0
[   40.797040][  T478] RBP: ffffc90000617230 R08: ffff8880020eb800 R09: 0000000000000000
[   40.797467][  T478] R10: ffffc900006175c8 R11: ffffffffa2050668 R12: 1ffff920000c2e2c
[   40.797898][  T478] R13: 00000000000007d0 R14: ffffc90000617880 R15: ffff88800dec6360
[   40.798329][  T478] FS:  00007f7e311b8800(0000) GS:ffff888093037000(0000) knlGS:0000000000000000
[   40.799157][  T478] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.799545][  T478] CR2: 00000000004e5aa0 CR3: 000000000de7e002 CR4: 0000000000772ef0
[   40.800011][  T478] PKRU: 55555554
[   40.800222][  T478] Call Trace:
[   40.800448][  T478]  <TASK>
[ 40.800596][ T478] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.800893][ T478] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 40.801191][ T478] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.801495][ T478] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 40.801772][ T478] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 40.802062][ T478] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 40.802343][ T478] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 40.802646][ T478] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 40.803042][ T478] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 40.803327][ T478] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 40.803638][ T478] ? __kernel_text_address (kernel/extable.c:79) 
[ 40.803929][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.804231][ 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) 
[ 40.804510][ T478] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 40.804934][ T478] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.805260][ T478] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.805561][ T478] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 40.805879][ T478] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 40.806185][ T478] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.806506][ T478] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 40.806818][ T478] ? __create_object (mm/kmemleak.c:771) 
[ 40.807125][ T478] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 40.807442][ T478] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 40.807740][ T478] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 40.808127][ T478] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 40.808453][ T478] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 40.808761][ T478] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 40.809086][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.809392][ T478] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.809695][ T478] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 40.810001][ T478] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.810301][ T478] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 40.810619][ T478] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 40.810930][ T478] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 40.811243][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.811568][ T478] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 40.811904][ T478] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 40.812184][ T478] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 40.812470][ T478] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 40.812776][ 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) 
[ 40.813065][ T478] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 40.813359][ T478] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 40.813635][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.813948][ T478] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 40.814231][ T478] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 40.814529][ T478] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 40.814833][ T478] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 40.815129][ T478] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 40.815436][ T478] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 40.815812][ T478] ___sys_sendmsg (net/socket.c:2670) 
[ 40.816113][ T478] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 40.816401][ 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) 
[ 40.816758][ T478] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 40.817067][ T478] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.817348][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.817636][ T478] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.817922][ 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) 
[ 40.818200][ T478] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.818480][ T478] __sys_sendmsg (net/socket.c:2700) 
[ 40.818754][ T478] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 40.819106][ T478] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 40.819413][ T478] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.819700][ T478] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 40.819997][ T478] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   40.820343][  T478] RIP: 0033:0x7f7e313851e7
[ 40.820642][ 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)
[   40.821681][  T478] RSP: 002b:00007ffc265f4bf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   40.822120][  T478] RAX: ffffffffffffffda RBX: 00007ffc265f5320 RCX: 00007f7e313851e7
[   40.822543][  T478] RDX: 0000000000000000 RSI: 00007ffc265f4c60 RDI: 0000000000000005
[   40.822974][  T478] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   40.823395][  T478] R10: 00007f7e31282ee8 R11: 0000000000000246 R12: 0000000000000004
[   40.823817][  T478] R13: 00000000686e6806 R14: 0000000000499600 R15: 0000000000000000
| [   40.938297][  T479] ------------[ cut here ]------------
| [ 40.938614][ 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) 
| [   40.939183][  T479] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   40.940345][  T479] Tainted: [W]=WARN
[   40.940562][  T479] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 40.940917][ 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) 
[ 40.941217][ T479] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   40.942215][  T479] RSP: 0018:ffffc900009c7140 EFLAGS: 00010246
[   40.942564][  T479] RAX: 0000000000000000 RBX: ffff888008f81000 RCX: 0000000000000001
[   40.942987][  T479] RDX: 0000000000000000 RSI: ffffffffa129b939 RDI: ffffffffa0a555e0
[   40.943410][  T479] RBP: ffffc900009c7230 R08: ffff88800b55b800 R09: 0000000000000000
[   40.943831][  T479] R10: ffffc900009c75c8 R11: ffffffffa2050668 R12: 1ffff92000138e2c
[   40.944243][  T479] R13: 00000000000007d0 R14: ffffc900009c7880 R15: ffff88800dec6de0
[   40.944655][  T479] FS:  00007fab7f0d3800(0000) GS:ffff888092eb7000(0000) knlGS:0000000000000000
[   40.945153][  T479] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.945500][  T479] CR2: 00000000004e5aa8 CR3: 0000000009042002 CR4: 0000000000772ef0
[   40.945925][  T479] PKRU: 55555554
[   40.946133][  T479] Call Trace:
[   40.946340][  T479]  <TASK>
[ 40.946483][ T479] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.946768][ T479] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 40.947065][ T479] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.947348][ T479] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 40.947627][ T479] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 40.947912][ T479] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 40.948192][ T479] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 40.948472][ T479] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 40.948837][ T479] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 40.949121][ T479] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 40.949394][ T479] ? __kernel_text_address (kernel/extable.c:79) 
[ 40.949670][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.949960][ 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) 
[ 40.950236][ T479] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 40.950577][ T479] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.950868][ T479] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.951155][ T479] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 40.951441][ T479] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 40.951719][ T479] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.952009][ T479] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 40.952282][ T479] ? __create_object (mm/kmemleak.c:771) 
[ 40.952561][ T479] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 40.952849][ T479] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 40.953129][ T479] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 40.953486][ T479] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 40.953768][ T479] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 40.954063][ T479] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 40.954339][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.954618][ T479] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.954909][ T479] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 40.955183][ T479] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.955466][ T479] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 40.955740][ T479] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 40.956052][ T479] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 40.956335][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.956614][ T479] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 40.956899][ T479] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 40.957176][ T479] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 40.957462][ T479] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 40.957747][ 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) 
[ 40.958037][ T479] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 40.958317][ T479] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 40.958591][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.958883][ T479] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 40.959162][ T479] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 40.959436][ T479] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 40.959729][ T479] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 40.960021][ T479] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 40.960296][ T479] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 40.960646][ T479] ___sys_sendmsg (net/socket.c:2670) 
[ 40.960927][ T479] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 40.961208][ 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) 
[ 40.961555][ T479] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 40.961853][ T479] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.962133][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.962414][ T479] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.962689][ 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) 
[ 40.962980][ T479] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.963264][ T479] __sys_sendmsg (net/socket.c:2700) 
[ 40.963535][ T479] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 40.963892][ T479] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 40.964180][ T479] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.964459][ T479] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 40.964740][ T479] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   40.965094][  T479] RIP: 0033:0x7fab7f2a01e7
[ 40.965382][ 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)
[   40.966391][  T479] RSP: 002b:00007ffc82b47ee8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   40.966818][  T479] RAX: ffffffffffffffda RBX: 00007ffc82b48610 RCX: 00007fab7f2a01e7
[   40.967233][  T479] RDX: 0000000000000000 RSI: 00007ffc82b47f50 RDI: 0000000000000005
[   40.967649][  T479] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   40.968091][  T479] R10: 00007fab7f19dee8 R11: 0000000000000246 R12: 0000000000000004
[   40.968505][  T479] R13: 00000000686e6806 R14: 0000000000499600 R15: 0000000000000000
| [   41.090462][  T480] ------------[ cut here ]------------
| [ 41.090778][ T480] WARNING: CPU: 3 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) 
| [   41.091698][  T480] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   41.092885][  T480] Tainted: [W]=WARN
[   41.093094][  T480] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.093436][ 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) 
[ 41.093729][ T480] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   41.094730][  T480] RSP: 0018:ffffc900009c7140 EFLAGS: 00010246
[   41.095092][  T480] RAX: 0000000000000000 RBX: ffff88800b849000 RCX: 0000000000000001
[   41.095503][  T480] RDX: 0000000000000000 RSI: ffffffffa129b939 RDI: ffffffffa0a555e0
[   41.095933][  T480] RBP: ffffc900009c7230 R08: ffff88800bb63800 R09: 0000000000000000
[   41.096375][  T480] R10: ffffc900009c75c8 R11: ffffffffa2050668 R12: 1ffff92000138e2c
[   41.096828][  T480] R13: 00000000000007d0 R14: ffffc900009c7880 R15: ffff88800dec7860
[   41.097269][  T480] FS:  00007f1c295cd800(0000) GS:ffff888093037000(0000) knlGS:0000000000000000
[   41.097780][  T480] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.098156][  T480] CR2: 00000000004e73b0 CR3: 000000000de7e004 CR4: 0000000000772ef0
[   41.098600][  T480] PKRU: 55555554
[   41.098820][  T480] Call Trace:
[   41.099030][  T480]  <TASK>
[ 41.099171][ T480] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.099454][ T480] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.099739][ T480] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.100033][ T480] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.100311][ T480] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.100597][ T480] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.100897][ T480] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.101179][ T480] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.101554][ T480] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.101837][ T480] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.102115][ T480] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.102400][ T480] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.102681][ 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) 
[ 41.102970][ T480] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.103311][ T480] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.103589][ T480] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.103876][ T480] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.104155][ T480] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.104432][ T480] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.104713][ T480] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.105006][ T480] ? __create_object (mm/kmemleak.c:771) 
[ 41.105306][ T480] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.105600][ T480] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.105901][ T480] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.106258][ T480] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.106543][ T480] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.106838][ T480] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.107115][ T480] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.107397][ T480] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.107676][ T480] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.107959][ T480] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.108237][ T480] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.108511][ T480] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.108787][ T480] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.109102][ T480] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.109402][ T480] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.109682][ T480] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.109972][ T480] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.110261][ T480] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.110536][ 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) 
[ 41.110828][ T480] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 41.111122][ T480] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.111407][ T480] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.111695][ T480] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.111989][ T480] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.112269][ T480] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.112555][ T480] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.112847][ T480] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.113130][ T480] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.113495][ T480] ___sys_sendmsg (net/socket.c:2670) 
[ 41.113770][ T480] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 41.114058][ 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) 
[ 41.114411][ T480] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.114690][ T480] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.115013][ T480] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.115321][ T480] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.115605][ 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) 
[ 41.115892][ T480] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.116177][ T480] __sys_sendmsg (net/socket.c:2700) 
[ 41.116451][ T480] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 41.116792][ T480] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.117097][ T480] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.117380][ T480] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.117664][ T480] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.118025][  T480] RIP: 0033:0x7f1c2979a1e7
[ 41.118315][ 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)
[   41.119319][  T480] RSP: 002b:00007ffc23d6e318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.119747][  T480] RAX: ffffffffffffffda RBX: 00007ffc23d6ea40 RCX: 00007f1c2979a1e7
[   41.120214][  T480] RDX: 0000000000000000 RSI: 00007ffc23d6e380 RDI: 0000000000000005
[   41.120639][  T480] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   41.121065][  T480] R10: 00007f1c29697ee8 R11: 0000000000000246 R12: 0000000000000004
[   41.121496][  T480] R13: 00000000686e6806 R14: 0000000000499600 R15: 0000000000000000
| [   41.238874][  T481] ------------[ cut here ]------------
| [ 41.239210][ T481] WARNING: CPU: 0 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) 
| [   41.239752][  T481] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   41.241730][  T481] Tainted: [W]=WARN
[   41.241949][  T481] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.242289][ 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) 
[ 41.242575][ T481] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   41.243564][  T481] RSP: 0018:ffffc900009f7140 EFLAGS: 00010246
[   41.243922][  T481] RAX: 0000000000000000 RBX: ffff8880088b1000 RCX: 0000000000000001
[   41.244331][  T481] RDX: 0000000000000000 RSI: ffffffffa129b939 RDI: ffffffffa0a555e0
[   41.244743][  T481] RBP: ffffc900009f7230 R08: ffff88800dd30800 R09: 0000000000000000
[   41.245160][  T481] R10: ffffc900009f75c8 R11: ffffffffa2050668 R12: 1ffff9200013ee2c
[   41.245574][  T481] R13: 00000000000007d0 R14: ffffc900009f7880 R15: ffff88800dec43e0
[   41.245995][  T481] FS:  00007f9a6f7e1800(0000) GS:ffff888092eb7000(0000) knlGS:0000000000000000
[   41.246473][  T481] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.246831][  T481] CR2: 00000000004e5ab0 CR3: 0000000009042004 CR4: 0000000000772ef0
[   41.247250][  T481] PKRU: 55555554
[   41.247459][  T481] Call Trace:
[   41.247663][  T481]  <TASK>
[ 41.247814][ T481] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.248100][ T481] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.248371][ T481] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.248651][ T481] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.248935][ T481] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.249218][ T481] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.249498][ T481] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.249779][ T481] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.250137][ T481] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.250413][ T481] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.250687][ T481] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.250972][ T481] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.251266][ 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) 
[ 41.251541][ T481] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.251891][ T481] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.252174][ T481] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.252450][ T481] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.252723][ T481] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.253011][ T481] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.253299][ T481] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.253572][ T481] ? __create_object (mm/kmemleak.c:771) 
[ 41.253859][ T481] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.254139][ T481] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.254417][ T481] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.254763][ T481] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.255056][ T481] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.255339][ T481] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.255622][ T481] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.255916][ T481] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.256198][ T481] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.256472][ T481] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.256747][ T481] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.257031][ T481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.257310][ T481] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.257593][ T481] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.257881][ T481] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.258158][ T481] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.258434][ T481] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.258722][ T481] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.259005][ 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) 
[ 41.259282][ T481] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 41.259565][ T481] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.259847][ T481] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.260130][ T481] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.260409][ T481] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.260684][ T481] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.260975][ T481] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.261267][ T481] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.261540][ T481] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.261911][ T481] ___sys_sendmsg (net/socket.c:2670) 
[ 41.262187][ T481] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 41.262496][ 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) 
[ 41.262866][ T481] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.263146][ T481] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.263424][ T481] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.263704][ T481] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.264001][ 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) 
[ 41.264279][ T481] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.264564][ T481] __sys_sendmsg (net/socket.c:2700) 
[ 41.264847][ T481] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 41.265188][ T481] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.265473][ T481] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.265751][ T481] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.266045][ T481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.266394][  T481] RIP: 0033:0x7f9a6f9ae1e7
[ 41.266681][ 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)
[   41.267687][  T481] RSP: 002b:00007ffc670de048 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.268118][  T481] RAX: ffffffffffffffda RBX: 00007ffc670de770 RCX: 00007f9a6f9ae1e7
[   41.268530][  T481] RDX: 0000000000000000 RSI: 00007ffc670de0b0 RDI: 0000000000000005
[   41.268971][  T481] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   41.269388][  T481] R10: 00007f9a6f8abee8 R11: 0000000000000246 R12: 0000000000000004
[   41.269818][  T481] R13: 00000000686e6806 R14: 0000000000499600 R15: 0000000000000000
| [   41.403856][  T482] ------------[ cut here ]------------
| [ 41.404212][ T482] WARNING: CPU: 3 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) 
| [   41.404797][  T482] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   41.407069][  T482] Tainted: [W]=WARN
[   41.407293][  T482] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.407659][ 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) 
[ 41.407976][ T482] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   41.409018][  T482] RSP: 0018:ffffc90000a07140 EFLAGS: 00010246
[   41.409392][  T482] RAX: 0000000000000000 RBX: ffff8880052c1000 RCX: 0000000000000001
[   41.409842][  T482] RDX: 0000000000000000 RSI: ffffffffa129b939 RDI: ffffffffa0a555e0
[   41.410280][  T482] RBP: ffffc90000a07230 R08: ffff88800619e800 R09: 0000000000000000
[   41.410715][  T482] R10: ffffc90000a075c8 R11: ffffffffa2050668 R12: 1ffff92000140e2c
[   41.411160][  T482] R13: 00000000000007d0 R14: ffffc90000a07880 R15: ffff88800dec4e60
[   41.411613][  T482] FS:  00007f7485135800(0000) GS:ffff888093037000(0000) knlGS:0000000000000000
[   41.412140][  T482] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.412510][  T482] CR2: 00000000004e55b8 CR3: 000000000ddba006 CR4: 0000000000772ef0
[   41.412957][  T482] PKRU: 55555554
[   41.413178][  T482] Call Trace:
[   41.413401][  T482]  <TASK>
[ 41.413551][ T482] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.413863][ T482] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.414156][ T482] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.414449][ T482] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.414742][ T482] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.415041][ T482] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.415338][ T482] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.415637][ T482] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.416045][ T482] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.416338][ T482] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.416626][ T482] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.416929][ T482] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.417224][ 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) 
[ 41.417517][ T482] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.417887][ T482] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.418186][ T482] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.418477][ T482] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.418771][ T482] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.419074][ T482] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.419373][ T482] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.419659][ T482] ? __create_object (mm/kmemleak.c:771) 
[ 41.419971][ T482] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.420266][ T482] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.420565][ T482] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.420936][ T482] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.421248][ T482] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.421547][ T482] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.421844][ T482] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.422143][ T482] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.422434][ T482] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.422731][ T482] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.423036][ T482] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.423325][ T482] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.423622][ T482] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.423930][ T482] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.424229][ T482] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.424525][ T482] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.424831][ T482] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.425140][ T482] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.425431][ 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) 
[ 41.425726][ T482] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 41.426038][ T482] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.426331][ T482] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.426630][ T482] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.426940][ T482] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.427274][ T482] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.427574][ T482] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.427885][ T482] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.428174][ T482] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.428550][ T482] ___sys_sendmsg (net/socket.c:2670) 
[ 41.428876][ T482] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 41.429173][ 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) 
[ 41.429551][ T482] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.429854][ T482] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.430153][ T482] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.430453][ T482] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.430745][ 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) 
[ 41.431045][ T482] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.431346][ T482] __sys_sendmsg (net/socket.c:2700) 
[ 41.431625][ T482] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 41.431971][ T482] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.432259][ T482] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.432538][ T482] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.432823][ T482] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.433165][  T482] RIP: 0033:0x7f74853021e7
[ 41.433453][ 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)
[   41.434454][  T482] RSP: 002b:00007ffe9aa5b7f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.434882][  T482] RAX: ffffffffffffffda RBX: 00007ffe9aa5bf20 RCX: 00007f74853021e7
[   41.435295][  T482] RDX: 0000000000000000 RSI: 00007ffe9aa5b860 RDI: 0000000000000005
[   41.435717][  T482] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   41.436135][  T482] R10: 00007f74851ffee8 R11: 0000000000000246 R12: 0000000000000004
[   41.436551][  T482] R13: 00000000686e6807 R14: 0000000000499600 R15: 0000000000000000
| [   41.552598][  T483] ------------[ cut here ]------------
| [ 41.553769][ T483] WARNING: CPU: 0 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) 
| [   41.554345][  T483] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   41.555508][  T483] Tainted: [W]=WARN
[   41.555718][  T483] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.556081][ 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) 
[ 41.556385][ T483] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   41.557385][  T483] RSP: 0018:ffffc90000a07140 EFLAGS: 00010246
[   41.557734][  T483] RAX: 0000000000000000 RBX: ffff888007f71000 RCX: 0000000000000001
[   41.558159][  T483] RDX: 0000000000000000 RSI: ffffffffa129b939 RDI: ffffffffa0a555e0
[   41.558578][  T483] RBP: ffffc90000a07230 R08: ffff88800abaa000 R09: 0000000000000000
[   41.559005][  T483] R10: ffffc90000a075c8 R11: ffffffffa2050668 R12: 1ffff92000140e2c
[   41.559420][  T483] R13: 00000000000007d0 R14: ffffc90000a07880 R15: ffff888008ddb860
[   41.559843][  T483] FS:  00007f4a74267800(0000) GS:ffff888092eb7000(0000) knlGS:0000000000000000
[   41.560336][  T483] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.560684][  T483] CR2: 00000000004e5ac8 CR3: 0000000009149003 CR4: 0000000000772ef0
[   41.561109][  T483] PKRU: 55555554
[   41.561331][  T483] Call Trace:
[   41.561539][  T483]  <TASK>
[ 41.561680][ T483] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.561972][ T483] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.562254][ T483] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.562533][ T483] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.562818][ T483] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.563102][ T483] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.563381][ T483] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.563662][ T483] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.564020][ T483] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.564305][ T483] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.564575][ T483] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.564859][ T483] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.565139][ 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) 
[ 41.565414][ T483] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.565752][ T483] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.566042][ T483] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.566338][ T483] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.566613][ T483] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.566897][ T483] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.567174][ T483] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.567444][ T483] ? __create_object (mm/kmemleak.c:771) 
[ 41.567721][ T483] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.568009][ T483] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.568283][ T483] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.568630][ T483] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.568918][ T483] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.569200][ T483] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.569483][ T483] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.569763][ T483] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.570057][ T483] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.570328][ T483] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.570614][ T483] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.570896][ T483] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.571179][ T483] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.571475][ T483] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.571753][ T483] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.572050][ T483] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.572323][ T483] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.572608][ T483] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.572910][ 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) 
[ 41.573203][ T483] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 41.573480][ T483] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.573752][ T483] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.574041][ T483] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.574319][ T483] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.574591][ T483] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.574884][ T483] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.575167][ T483] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.575444][ T483] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.575815][ T483] ___sys_sendmsg (net/socket.c:2670) 
[ 41.576091][ T483] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 41.576362][ 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) 
[ 41.576703][ T483] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.576999][ T483] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.577277][ T483] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.577554][ T483] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.577836][ 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) 
[ 41.578114][ T483] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.578394][ T483] __sys_sendmsg (net/socket.c:2700) 
[ 41.578664][ T483] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 41.579021][ T483] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.579309][ T483] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.579588][ T483] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.579872][ T483] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.580213][  T483] RIP: 0033:0x7f4a744341e7
[ 41.580496][ 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)
[   41.581497][  T483] RSP: 002b:00007ffd6d919098 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.581922][  T483] RAX: ffffffffffffffda RBX: 00007ffd6d9197c0 RCX: 00007f4a744341e7
[   41.582345][  T483] RDX: 0000000000000000 RSI: 00007ffd6d919100 RDI: 0000000000000005
[   41.582768][  T483] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   41.583189][  T483] R10: 00007f4a74331ee8 R11: 0000000000000246 R12: 0000000000000004
[   41.583599][  T483] R13: 00000000686e6807 R14: 0000000000499600 R15: 0000000000000000
| [   41.698185][  T484] ------------[ cut here ]------------
| [ 41.698519][ T484] WARNING: CPU: 3 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) 
| [   41.699091][  T484] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   41.701515][  T484] Tainted: [W]=WARN
[   41.701735][  T484] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.702087][ 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) 
[ 41.702376][ T484] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   41.703363][  T484] RSP: 0018:ffffc90000a17140 EFLAGS: 00010246
[   41.703720][  T484] RAX: 0000000000000000 RBX: ffff888008709000 RCX: 0000000000000001
[   41.704140][  T484] RDX: 0000000000000000 RSI: ffffffffa129b939 RDI: ffffffffa0a555e0
[   41.704553][  T484] RBP: ffffc90000a17230 R08: ffff88800b930800 R09: 0000000000000000
[   41.704973][  T484] R10: ffffc90000a175c8 R11: ffffffffa2050668 R12: 1ffff92000142e2c
[   41.705386][  T484] R13: 00000000000007d0 R14: ffffc90000a17880 R15: ffff888008ddade0
[   41.705795][  T484] FS:  00007ffb1a79a800(0000) GS:ffff888093037000(0000) knlGS:0000000000000000
[   41.706282][  T484] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.706631][  T484] CR2: 00000000004e5ac0 CR3: 000000000ddba002 CR4: 0000000000772ef0
[   41.707051][  T484] PKRU: 55555554
[   41.707262][  T484] Call Trace:
[   41.707467][  T484]  <TASK>
[ 41.707609][ T484] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.707897][ T484] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.708172][ T484] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.708455][ T484] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.708729][ T484] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.709022][ T484] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.709302][ T484] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.709584][ T484] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.709943][ T484] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.710225][ T484] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.710499][ T484] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.710777][ T484] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.711067][ 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) 
[ 41.711359][ T484] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.711702][ T484] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.711987][ T484] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.712258][ T484] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.712539][ T484] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.712830][ T484] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.713115][ T484] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.713384][ T484] ? __create_object (mm/kmemleak.c:771) 
[ 41.713664][ T484] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.713951][ T484] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.714230][ T484] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.714584][ T484] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.714877][ T484] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.715175][ T484] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.715466][ T484] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.715766][ T484] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.716076][ T484] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.716367][ T484] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.716663][ T484] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.716965][ T484] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.717256][ T484] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.717547][ T484] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.717851][ T484] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.718142][ T484] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.718438][ T484] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.718738][ T484] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.719043][ 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) 
[ 41.719335][ T484] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 41.719630][ T484] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.719926][ T484] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.720221][ T484] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.720519][ T484] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.720822][ T484] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.721128][ T484] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.721438][ T484] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.721729][ T484] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.722114][ T484] ___sys_sendmsg (net/socket.c:2670) 
[ 41.722410][ T484] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 41.722699][ 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) 
[ 41.723072][ T484] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.723372][ T484] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.723666][ T484] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.723972][ T484] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.724271][ 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) 
[ 41.724566][ T484] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.724874][ T484] __sys_sendmsg (net/socket.c:2700) 
[ 41.725164][ T484] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 41.725521][ T484] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.725843][ T484] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.726140][ T484] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.726432][ T484] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.726794][  T484] RIP: 0033:0x7ffb1a9671e7
[ 41.727110][ 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)
[   41.728167][  T484] RSP: 002b:00007ffcaccb6378 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.728604][  T484] RAX: ffffffffffffffda RBX: 00007ffcaccb6aa0 RCX: 00007ffb1a9671e7
[   41.729044][  T484] RDX: 0000000000000000 RSI: 00007ffcaccb63e0 RDI: 0000000000000005
[   41.729474][  T484] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   41.729923][  T484] R10: 00007ffb1a864ee8 R11: 0000000000000246 R12: 0000000000000004
[   41.730358][  T484] R13: 00000000686e6807 R14: 0000000000499600 R15: 0000000000000000
| [   41.865718][  T485] ------------[ cut here ]------------
| [ 41.866091][ T485] WARNING: CPU: 0 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) 
| [   41.866646][  T485] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   41.867823][  T485] Tainted: [W]=WARN
[   41.868039][  T485] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.868387][ 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) 
[ 41.868686][ T485] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   41.869702][  T485] RSP: 0018:ffffc90000a27140 EFLAGS: 00010246
[   41.870073][  T485] RAX: 0000000000000000 RBX: ffff88800a8b4000 RCX: 0000000000000001
[   41.870489][  T485] RDX: 0000000000000000 RSI: ffffffffa129b939 RDI: ffffffffa0a555e0
[   41.870916][  T485] RBP: ffffc90000a27230 R08: ffff8880027ba000 R09: 0000000000000000
[   41.871353][  T485] R10: ffffc90000a275c8 R11: ffffffffa2050668 R12: 1ffff92000144e2c
[   41.871785][  T485] R13: 00000000000007d0 R14: ffffc90000a27880 R15: ffff888008dda360
[   41.873662][  T485] FS:  00007f4b37cf6800(0000) GS:ffff888092eb7000(0000) knlGS:0000000000000000
[   41.874177][  T485] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.874538][  T485] CR2: 00000000004e73c8 CR3: 0000000009149005 CR4: 0000000000772ef0
[   41.874970][  T485] PKRU: 55555554
[   41.875178][  T485] Call Trace:
[   41.875387][  T485]  <TASK>
[ 41.875540][ T485] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.875844][ T485] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.876121][ T485] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.876409][ T485] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.876692][ T485] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.876986][ T485] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.877267][ T485] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.877550][ T485] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.877909][ T485] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.878196][ T485] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.878479][ T485] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.878764][ T485] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.879063][ 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) 
[ 41.879341][ T485] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.879690][ T485] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.879996][ T485] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.880284][ T485] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.880562][ T485] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.880857][ T485] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.881132][ T485] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.881423][ T485] ? __create_object (mm/kmemleak.c:771) 
[ 41.881702][ T485] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.882019][ T485] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.882295][ T485] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.882648][ T485] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.882950][ T485] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.883234][ T485] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.883522][ T485] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.883823][ T485] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.884099][ T485] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.884372][ T485] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.884649][ T485] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.884944][ T485] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.885223][ T485] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.885505][ T485] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.885788][ T485] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.886080][ T485] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.886380][ T485] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.886668][ T485] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.886965][ 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) 
[ 41.887244][ T485] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 41.887523][ T485] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.887796][ T485] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.888090][ T485] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.888370][ T485] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.888647][ T485] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.888954][ T485] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.889237][ T485] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.889512][ T485] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.889876][ T485] ___sys_sendmsg (net/socket.c:2670) 
[ 41.890150][ T485] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 41.890426][ 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) 
[ 41.890797][ T485] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.891098][ T485] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.891394][ T485] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.891683][ T485] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.891969][ 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) 
[ 41.892246][ T485] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.892531][ T485] __sys_sendmsg (net/socket.c:2700) 
[ 41.892819][ T485] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 41.893169][ T485] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.893460][ T485] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.893753][ T485] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.894062][ T485] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.894405][  T485] RIP: 0033:0x7f4b37ec31e7
[ 41.894693][ 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)
[   41.895732][  T485] RSP: 002b:00007ffd140823a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.896181][  T485] RAX: ffffffffffffffda RBX: 00007ffd14082ad0 RCX: 00007f4b37ec31e7
[   41.896608][  T485] RDX: 0000000000000000 RSI: 00007ffd14082410 RDI: 0000000000000005
[   41.897034][  T485] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   41.897453][  T485] R10: 00007f4b37dc0ee8 R11: 0000000000000246 R12: 0000000000000004
[   41.897877][  T485] R13: 00000000686e6807 R14: 0000000000499600 R15: 0000000000000000
| [   42.033638][  T486] ------------[ cut here ]------------
| [ 42.035507][ T486] WARNING: CPU: 2 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) 
| [   42.036139][  T486] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   42.037390][  T486] Tainted: [W]=WARN
[   42.037626][  T486] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.038014][ 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) 
[ 42.038328][ T486] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   42.039395][  T486] RSP: 0018:ffffc90000a37140 EFLAGS: 00010246
[   42.039784][  T486] RAX: 0000000000000000 RBX: ffff888008b09000 RCX: 0000000000000001
[   42.040243][  T486] RDX: 0000000000000000 RSI: ffffffffa129b939 RDI: ffffffffa0a555e0
[   42.040697][  T486] RBP: ffffc90000a37230 R08: ffff88800abad000 R09: 0000000000000000
[   42.041165][  T486] R10: ffffc90000a375c8 R11: ffffffffa2050668 R12: 1ffff92000146e2c
[   42.041627][  T486] R13: 00000000000007d0 R14: ffffc90000a37880 R15: ffff888008dd98e0
[   42.042108][  T486] FS:  00007f4813362800(0000) GS:ffff888092fb7000(0000) knlGS:0000000000000000
[   42.042608][  T486] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.042980][  T486] CR2: 00000000004e5ab8 CR3: 000000000ddba001 CR4: 0000000000772ef0
[   42.043416][  T486] PKRU: 55555554
[   42.043643][  T486] Call Trace:
[   42.043891][  T486]  <TASK>
[ 42.044049][ T486] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.044347][ T486] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.044633][ T486] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.044938][ T486] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 42.045228][ T486] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 42.045529][ T486] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 42.045828][ T486] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 42.046126][ T486] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.046494][ T486] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.046783][ T486] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.047078][ T486] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.047379][ T486] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.047671][ 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) 
[ 42.047980][ T486] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.048337][ T486] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.048626][ T486] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.048921][ T486] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.049207][ T486] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.049506][ T486] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.049793][ T486] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.050088][ T486] ? __create_object (mm/kmemleak.c:771) 
[ 42.050380][ T486] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.050671][ T486] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.050968][ T486] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.051343][ T486] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.051639][ T486] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.051958][ T486] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.052243][ T486] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.052543][ T486] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.052846][ T486] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.053134][ T486] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.053423][ T486] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.053710][ T486] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.054011][ T486] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.054314][ T486] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.054605][ T486] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.054903][ T486] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.055194][ T486] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.055490][ T486] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.055778][ 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) 
[ 42.056079][ T486] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 42.056380][ T486] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.056665][ T486] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.056968][ T486] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.057269][ T486] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.057562][ T486] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.057867][ T486] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.058159][ T486] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.058452][ T486] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.058828][ T486] ___sys_sendmsg (net/socket.c:2670) 
[ 42.059114][ T486] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.059402][ 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) 
[ 42.059758][ T486] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.060063][ T486] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.060354][ T486] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.060654][ T486] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.061009][ 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) 
[ 42.061329][ T486] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.061640][ T486] __sys_sendmsg (net/socket.c:2700) 
[ 42.061953][ T486] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.062329][ T486] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.062647][ T486] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.062970][ T486] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.063280][ T486] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.063656][  T486] RIP: 0033:0x7f481352f1e7
[ 42.063988][ 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)
[   42.065055][  T486] RSP: 002b:00007ffc56ed4e88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.065516][  T486] RAX: ffffffffffffffda RBX: 00007ffc56ed55b0 RCX: 00007f481352f1e7
[   42.065971][  T486] RDX: 0000000000000000 RSI: 00007ffc56ed4ef0 RDI: 0000000000000005
[   42.066417][  T486] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   42.066880][  T486] R10: 00007f481342cee8 R11: 0000000000000246 R12: 0000000000000004
[   42.067317][  T486] R13: 00000000686e6807 R14: 0000000000499600 R15: 0000000000000000
| [   42.189008][  T487] ------------[ cut here ]------------
| [ 42.189502][ T487] WARNING: CPU: 0 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) 
| [   42.190199][  T487] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   42.192644][  T487] Tainted: [W]=WARN
[   42.192864][  T487] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.193419][ 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) 
[ 42.193884][ T487] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   42.195497][  T487] RSP: 0018:ffffc90000a47140 EFLAGS: 00010246
[   42.195928][  T487] RAX: 0000000000000000 RBX: ffff888008ba9000 RCX: 0000000000000001
[   42.196478][  T487] RDX: 0000000000000000 RSI: ffffffffa129b939 RDI: ffffffffa0a555e0
[   42.196900][  T487] RBP: ffffc90000a47230 R08: ffff88800982d000 R09: 0000000000000000
[   42.197456][  T487] R10: ffffc90000a475c8 R11: ffffffffa2050668 R12: 1ffff92000148e2c
[   42.197977][  T487] R13: 00000000000007d0 R14: ffffc90000a47880 R15: ffff888008dd8e60
[   42.198664][  T487] FS:  00007f2e7e9b5800(0000) GS:ffff888092eb7000(0000) knlGS:0000000000000000
[   42.199191][  T487] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.199542][  T487] CR2: 00000000004e59c0 CR3: 000000000df79001 CR4: 0000000000772ef0
[   42.199974][  T487] PKRU: 55555554
[   42.200206][  T487] Call Trace:
[   42.200422][  T487]  <TASK>
[ 42.200582][ T487] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.200884][ T487] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.201180][ T487] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.201477][ T487] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 42.201762][ T487] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 42.202140][ T487] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 42.202502][ T487] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 42.202870][ T487] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.203386][ T487] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.203828][ T487] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.204305][ T487] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.204821][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.205320][ 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) 
[ 42.205685][ T487] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.206083][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.206508][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.206782][ T487] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.207151][ T487] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.207447][ T487] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.207724][ T487] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.208021][ T487] ? __create_object (mm/kmemleak.c:771) 
[ 42.208308][ T487] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.208587][ T487] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.208871][ T487] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.209228][ T487] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.209509][ T487] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.209789][ T487] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.210109][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.210394][ T487] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.210672][ T487] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.210954][ T487] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.211255][ T487] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.211530][ T487] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.211840][ T487] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.212135][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.212421][ T487] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.212703][ T487] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.213008][ T487] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.213300][ T487] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.213578][ 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) 
[ 42.213950][ T487] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 42.214270][ T487] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.214605][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.214922][ T487] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.215382][ T487] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.215672][ T487] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.216030][ T487] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.216381][ T487] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.216655][ T487] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.217041][ T487] ___sys_sendmsg (net/socket.c:2670) 
[ 42.217324][ T487] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.217689][ 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) 
[ 42.218125][ T487] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.218464][ T487] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.218749][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.219117][ T487] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.219493][ 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) 
[ 42.219776][ T487] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.220083][ T487] __sys_sendmsg (net/socket.c:2700) 
[ 42.220360][ T487] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.220701][ T487] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.221009][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.221308][ T487] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.221600][ T487] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.221967][  T487] RIP: 0033:0x7f2e7eb821e7
[ 42.222280][ 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)
[   42.223407][  T487] RSP: 002b:00007ffe797a13a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.223835][  T487] RAX: ffffffffffffffda RBX: 00007ffe797a1ad0 RCX: 00007f2e7eb821e7
[   42.224269][  T487] RDX: 0000000000000000 RSI: 00007ffe797a1410 RDI: 0000000000000005
[   42.224679][  T487] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   42.225134][  T487] R10: 00007f2e7ea7fee8 R11: 0000000000000246 R12: 0000000000000004


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