======================================
| [   34.244131][  T422] GACT probability NOT on
| [   40.589112][  T479] ------------[ cut here ]------------
| [ 40.589624][ T479] WARNING: CPU: 3 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) 
| [   40.590264][  T479] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
[   40.591511][  T479] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 40.591899][ 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) 
[ 40.592215][ T479] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   40.593309][  T479] RSP: 0018:ffffc90000787140 EFLAGS: 00010246
[   40.593695][  T479] RAX: 0000000000000000 RBX: ffff8880086a4000 RCX: 0000000000000001
[   40.594155][  T479] RDX: 0000000000000000 RSI: ffffffffa269b941 RDI: ffffffffa1e555e0
[   40.594610][  T479] RBP: ffffc90000787230 R08: ffff88800e8c2000 R09: 0000000000000000
[   40.595084][  T479] R10: ffffc900007875c8 R11: ffffffffa3450668 R12: 1ffff920000f0e2c
[   40.595541][  T479] R13: 00000000000007d0 R14: ffffc90000787880 R15: ffff88800a1a6360
[   40.596003][  T479] FS:  00007f355bd73800(0000) GS:ffff88808ae37000(0000) knlGS:0000000000000000
[   40.596541][  T479] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.596938][  T479] CR2: 00000000004e5aa0 CR3: 0000000009273006 CR4: 0000000000772ef0
[   40.597397][  T479] PKRU: 55555554
[   40.597982][  T479] Call Trace:
[   40.598213][  T479]  <TASK>
[ 40.598371][ T479] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.598682][ T479] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 40.598991][ T479] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.599306][ T479] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 40.599606][ T479] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 40.599918][ T479] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 40.600225][ T479] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 40.600536][ T479] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 40.600924][ T479] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 40.601227][ T479] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 40.601537][ T479] ? __kernel_text_address (kernel/extable.c:79) 
[ 40.601848][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.602153][ 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) 
[ 40.602455][ T479] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 40.602856][ T479] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.603160][ T479] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.603458][ T479] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 40.603765][ T479] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 40.604078][ T479] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.604379][ T479] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 40.604682][ T479] ? __create_object (mm/kmemleak.c:771) 
[ 40.605003][ T479] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 40.605307][ T479] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 40.605608][ T479] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 40.605999][ T479] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 40.606309][ T479] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 40.606615][ T479] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 40.606919][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.607232][ T479] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.607547][ T479] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 40.607854][ T479] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.608158][ T479] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 40.608464][ T479] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 40.608767][ T479] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 40.609085][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.609393][ T479] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 40.609694][ T479] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 40.610003][ T479] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 40.610319][ T479] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 40.610624][ 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) 
[ 40.610939][ T479] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 40.611244][ T479] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 40.611542][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.611854][ T479] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 40.612157][ T479] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 40.612459][ T479] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 40.612768][ T479] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 40.613086][ T479] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 40.613383][ T479] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 40.613774][ T479] ___sys_sendmsg (net/socket.c:2670) 
[ 40.614080][ T479] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 40.614380][ 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) 
[ 40.614755][ T479] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 40.615075][ T479] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.615378][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.615684][ T479] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.615992][ 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) 
[ 40.616290][ T479] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.616597][ T479] __sys_sendmsg (net/socket.c:2700) 
[ 40.616903][ T479] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 40.617275][ T479] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 40.617608][ T479] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.617920][ T479] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 40.618223][ T479] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   40.618595][  T479] RIP: 0033:0x7f355bf401e7
[ 40.618923][ 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)
[   40.620017][  T479] RSP: 002b:00007ffca156c0f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   40.620476][  T479] RAX: ffffffffffffffda RBX: 00007ffca156c820 RCX: 00007f355bf401e7
[   40.620942][  T479] RDX: 0000000000000000 RSI: 00007ffca156c160 RDI: 0000000000000005
[   40.621394][  T479] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   40.621859][  T479] R10: 00007f355be3dee8 R11: 0000000000000246 R12: 0000000000000004
[   40.622312][  T479] R13: 00000000686e1f8e R14: 0000000000499600 R15: 0000000000000000
| [   40.733073][  T480] ------------[ cut here ]------------
| [ 40.733496][ T480] WARNING: CPU: 2 PID: 480 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   40.735553][  T480] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   40.736987][  T480] Tainted: [W]=WARN
[   40.737259][  T480] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 40.737696][ 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) 
[ 40.738067][ T480] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   40.739250][  T480] RSP: 0018:ffffc900007b7140 EFLAGS: 00010246
[   40.739680][  T480] RAX: 0000000000000000 RBX: ffff8880085f4000 RCX: 0000000000000001
[   40.740194][  T480] RDX: 0000000000000000 RSI: ffffffffa269b941 RDI: ffffffffa1e555e0
[   40.740700][  T480] RBP: ffffc900007b7230 R08: ffff8880050b2000 R09: 0000000000000000
[   40.741213][  T480] R10: ffffc900007b75c8 R11: ffffffffa3450668 R12: 1ffff920000f6e2c
[   40.741713][  T480] R13: 00000000000007d0 R14: ffffc900007b7880 R15: ffff88800a1a6de0
[   40.742225][  T480] FS:  00007fa1d0d2a800(0000) GS:ffff88808adb7000(0000) knlGS:0000000000000000
[   40.742833][  T480] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.743257][  T480] CR2: 00000000004e5aa8 CR3: 000000000bab3002 CR4: 0000000000772ef0
[   40.743757][  T480] PKRU: 55555554
[   40.744039][  T480] Call Trace:
[   40.744301][  T480]  <TASK>
[ 40.744482][ T480] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.744843][ T480] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 40.745192][ T480] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.745546][ T480] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 40.745900][ T480] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 40.746245][ T480] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 40.746588][ T480] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 40.746949][ T480] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 40.747376][ T480] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 40.747760][ T480] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 40.748116][ T480] ? __kernel_text_address (kernel/extable.c:79) 
[ 40.748461][ T480] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.748804][ 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) 
[ 40.749157][ T480] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 40.749576][ T480] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.749936][ T480] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.750287][ T480] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 40.750631][ T480] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 40.750985][ T480] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.751332][ T480] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 40.751669][ T480] ? __create_object (mm/kmemleak.c:771) 
[ 40.752028][ T480] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 40.752375][ T480] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 40.752716][ T480] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 40.753157][ T480] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 40.753511][ T480] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 40.753869][ T480] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 40.754221][ T480] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.754567][ T480] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.754929][ T480] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 40.755270][ T480] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.755620][ T480] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 40.755978][ T480] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 40.756327][ T480] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 40.756669][ T480] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.757031][ T480] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 40.757371][ T480] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 40.757727][ T480] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 40.758090][ T480] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 40.758438][ 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) 
[ 40.758776][ T480] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 40.759140][ T480] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 40.759479][ T480] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.759838][ T480] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 40.760189][ T480] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 40.760529][ T480] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 40.760901][ T480] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 40.761259][ T480] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 40.761596][ T480] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 40.762042][ T480] ___sys_sendmsg (net/socket.c:2670) 
[ 40.762380][ T480] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 40.762721][ 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) 
[ 40.763163][ T480] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 40.763516][ T480] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.763889][ T480] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.764239][ T480] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.764577][ 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) 
[ 40.764931][ T480] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.765282][ T480] __sys_sendmsg (net/socket.c:2700) 
[ 40.765619][ T480] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 40.766057][ T480] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 40.766415][ T480] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.766758][ T480] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 40.767115][ T480] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   40.767549][  T480] RIP: 0033:0x7fa1d0ef71e7
[ 40.767915][ 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)
[   40.769098][  T480] RSP: 002b:00007ffdee7844e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   40.769606][  T480] RAX: ffffffffffffffda RBX: 00007ffdee784c10 RCX: 00007fa1d0ef71e7
[   40.770117][  T480] RDX: 0000000000000000 RSI: 00007ffdee784550 RDI: 0000000000000005
[   40.770627][  T480] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   40.771143][  T480] R10: 00007fa1d0df4ee8 R11: 0000000000000246 R12: 0000000000000004
[   40.771643][  T480] R13: 00000000686e1f8e R14: 0000000000499600 R15: 0000000000000000
| [   40.883416][  T481] ------------[ cut here ]------------
| [ 40.883962][ T481] WARNING: CPU: 3 PID: 481 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   40.884570][  T481] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   40.885847][  T481] Tainted: [W]=WARN
[   40.886077][  T481] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 40.886454][ 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) 
[ 40.886763][ T481] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   40.887870][  T481] RSP: 0018:ffffc900007c7140 EFLAGS: 00010246
[   40.888256][  T481] RAX: 0000000000000000 RBX: ffff888008981000 RCX: 0000000000000001
[   40.888709][  T481] RDX: 0000000000000000 RSI: ffffffffa269b941 RDI: ffffffffa1e555e0
[   40.889172][  T481] RBP: ffffc900007c7230 R08: ffff88800209b800 R09: 0000000000000000
[   40.889637][  T481] R10: ffffc900007c75c8 R11: ffffffffa3450668 R12: 1ffff920000f8e2c
[   40.890099][  T481] R13: 00000000000007d0 R14: ffffc900007c7880 R15: ffff88800a1a7be0
[   40.890552][  T481] FS:  00007f19b094c800(0000) GS:ffff88808ae37000(0000) knlGS:0000000000000000
[   40.891089][  T481] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.891479][  T481] CR2: 00000000004e73b0 CR3: 0000000004c75002 CR4: 0000000000772ef0
[   40.891950][  T481] PKRU: 55555554
[   40.892191][  T481] Call Trace:
[   40.892421][  T481]  <TASK>
[ 40.892574][ T481] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.892895][ T481] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 40.893196][ T481] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.893503][ T481] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 40.893813][ T481] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 40.894125][ T481] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 40.894431][ T481] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 40.894743][ T481] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 40.895137][ T481] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 40.895439][ T481] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 40.895742][ T481] ? __kernel_text_address (kernel/extable.c:79) 
[ 40.896063][ T481] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.896373][ 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) 
[ 40.896674][ T481] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 40.897055][ T481] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.897359][ T481] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.897669][ T481] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 40.897980][ T481] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 40.898295][ T481] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.898597][ T481] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 40.898951][ T481] ? __create_object (mm/kmemleak.c:771) 
[ 40.899267][ T481] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 40.899570][ T481] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 40.899883][ T481] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 40.900260][ T481] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 40.900576][ T481] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 40.900895][ T481] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 40.901196][ T481] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.901502][ T481] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.901800][ T481] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 40.902108][ T481] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.902410][ T481] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 40.902709][ T481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 40.903032][ T481] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 40.903342][ T481] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.903647][ T481] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 40.903962][ T481] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 40.904268][ T481] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 40.904584][ T481] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 40.904890][ 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) 
[ 40.905203][ T481] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 40.905509][ T481] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 40.905810][ T481] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.906135][ T481] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 40.906444][ T481] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 40.906747][ T481] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 40.907064][ T481] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 40.907371][ T481] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 40.907687][ T481] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 40.908082][ T481] ___sys_sendmsg (net/socket.c:2670) 
[ 40.908383][ T481] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 40.908682][ 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) 
[ 40.909067][ T481] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 40.909371][ T481] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.909681][ T481] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.909995][ T481] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.910297][ 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) 
[ 40.910597][ T481] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.910914][ T481] __sys_sendmsg (net/socket.c:2700) 
[ 40.911216][ T481] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 40.911589][ T481] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 40.911915][ T481] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.912229][ T481] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 40.912532][ T481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   40.912913][  T481] RIP: 0033:0x7f19b0b191e7
[ 40.913233][ 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)
[   40.914306][  T481] RSP: 002b:00007ffd3f02a818 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   40.914766][  T481] RAX: ffffffffffffffda RBX: 00007ffd3f02af40 RCX: 00007f19b0b191e7
[   40.915224][  T481] RDX: 0000000000000000 RSI: 00007ffd3f02a880 RDI: 0000000000000005
[   40.915676][  T481] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   40.916139][  T481] R10: 00007f19b0a16ee8 R11: 0000000000000246 R12: 0000000000000004
[   40.916594][  T481] R13: 00000000686e1f8e R14: 0000000000499600 R15: 0000000000000000
| [   41.063664][  T482] ------------[ cut here ]------------
| [ 41.064117][ T482] WARNING: CPU: 0 PID: 482 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   41.064714][  T482] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   41.065997][  T482] Tainted: [W]=WARN
[   41.066227][  T482] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.066601][ 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) 
[ 41.066931][ T482] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   41.068061][  T482] RSP: 0018:ffffc900007d7140 EFLAGS: 00010246
[   41.068451][  T482] RAX: 0000000000000000 RBX: ffff888005039000 RCX: 0000000000000001
[   41.068914][  T482] RDX: 0000000000000000 RSI: ffffffffa269b941 RDI: ffffffffa1e555e0
[   41.069373][  T482] RBP: ffffc900007d7230 R08: ffff88800aa8e800 R09: 0000000000000000
[   41.069835][  T482] R10: ffffc900007d75c8 R11: ffffffffa3450668 R12: 1ffff920000fae2c
[   41.070287][  T482] R13: 00000000000007d0 R14: ffffc900007d7880 R15: ffff888004da74e0
[   41.070743][  T482] FS:  00007effab7c1800(0000) GS:ffff88808acb7000(0000) knlGS:0000000000000000
[   41.071300][  T482] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.071704][  T482] CR2: 00000000004e5ab0 CR3: 00000000090b7003 CR4: 0000000000772ef0
[   41.072368][  T482] PKRU: 55555554
[   41.072593][  T482] Call Trace:
[   41.072955][  T482]  <TASK>
[ 41.073109][ T482] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.073421][ T482] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.073731][ T482] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.074203][ T482] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.074497][ T482] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.074798][ T482] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.075158][ T482] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.075466][ T482] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.075903][ T482] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.076210][ T482] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.076511][ T482] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.076851][ T482] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.077160][ 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) 
[ 41.077475][ T482] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.077860][ T482] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.078176][ T482] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.078476][ T482] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.078780][ T482] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.079108][ T482] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.079413][ T482] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.079746][ T482] ? __create_object (mm/kmemleak.c:771) 
[ 41.080073][ T482] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.080382][ T482] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.080693][ T482] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.081080][ T482] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.081398][ T482] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.081707][ T482] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.082018][ T482] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.082330][ T482] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.082637][ T482] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.082964][ T482] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.083274][ T482] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.083576][ T482] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.083925][ T482] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.084235][ T482] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.084544][ T482] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.084858][ T482] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.085161][ T482] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.085483][ T482] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.085783][ 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) 
[ 41.086096][ T482] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 41.086403][ T482] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.086703][ T482] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.087033][ T482] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.087338][ T482] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.087687][ T482] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.088029][ T482] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.088339][ T482] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.088640][ T482] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.089038][ T482] ___sys_sendmsg (net/socket.c:2670) 
[ 41.089337][ T482] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 41.089639][ 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) 
[ 41.090036][ T482] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.090342][ T482] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.090648][ T482] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.090976][ T482] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.091279][ 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) 
[ 41.091581][ T482] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.091934][ T482] __sys_sendmsg (net/socket.c:2700) 
[ 41.092240][ T482] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 41.092616][ T482] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.092954][ T482] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.093263][ T482] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.093575][ T482] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.093963][  T482] RIP: 0033:0x7effab98e1e7
[ 41.094277][ 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)
[   41.095384][  T482] RSP: 002b:00007ffe3ca537b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.095886][  T482] RAX: ffffffffffffffda RBX: 00007ffe3ca53ee0 RCX: 00007effab98e1e7
[   41.096338][  T482] RDX: 0000000000000000 RSI: 00007ffe3ca53820 RDI: 0000000000000005
[   41.096999][  T482] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   41.097467][  T482] R10: 00007effab88bee8 R11: 0000000000000246 R12: 0000000000000004
[   41.097930][  T482] R13: 00000000686e1f8e R14: 0000000000499600 R15: 0000000000000000
| [   41.208597][  T483] ------------[ cut here ]------------
| [ 41.209036][ T483] WARNING: CPU: 2 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) 
| [   41.209713][  T483] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   41.211919][  T483] Tainted: [W]=WARN
[   41.212194][  T483] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.212614][ 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) 
[ 41.212982][ T483] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   41.214167][  T483] RSP: 0018:ffffc90000737140 EFLAGS: 00010246
[   41.214598][  T483] RAX: 0000000000000000 RBX: ffff888007d11000 RCX: 0000000000000001
[   41.215105][  T483] RDX: 0000000000000000 RSI: ffffffffa269b941 RDI: ffffffffa1e555e0
[   41.215602][  T483] RBP: ffffc90000737230 R08: ffff88800a91a000 R09: 0000000000000000
[   41.216116][  T483] R10: ffffc900007375c8 R11: ffffffffa3450668 R12: 1ffff920000e6e2c
[   41.216617][  T483] R13: 00000000000007d0 R14: ffffc90000737880 R15: ffff888004da6a60
[   41.217131][  T483] FS:  00007fcfd41af800(0000) GS:ffff88808adb7000(0000) knlGS:0000000000000000
[   41.217732][  T483] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.218176][  T483] CR2: 00000000004e55b8 CR3: 000000000a00b002 CR4: 0000000000772ef0
[   41.218678][  T483] PKRU: 55555554
[   41.218948][  T483] Call Trace:
[   41.219208][  T483]  <TASK>
[ 41.219391][ T483] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.219739][ T483] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.220098][ T483] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.220452][ T483] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.220795][ T483] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.221149][ T483] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.221496][ T483] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.221853][ T483] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.222295][ T483] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.222636][ T483] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.222994][ T483] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.223337][ T483] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.223681][ 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) 
[ 41.224033][ T483] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.224450][ T483] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.224788][ T483] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.225139][ T483] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.225487][ T483] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.225839][ T483] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.226181][ T483] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.226515][ T483] ? __create_object (mm/kmemleak.c:771) 
[ 41.226871][ T483] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.227213][ T483] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.227570][ T483] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.228016][ T483] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.228366][ T483] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.228710][ T483] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.229061][ T483] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.229408][ T483] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.229751][ T483] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.230101][ T483] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.230443][ T483] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.230788][ T483] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.231161][ T483] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.231505][ T483] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.231861][ T483] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.232202][ T483] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.232542][ T483] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.232906][ T483] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.233251][ 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) 
[ 41.233591][ T483] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 41.233949][ T483] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.234287][ T483] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.234634][ T483] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.234987][ T483] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.235328][ T483] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.235688][ T483] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.236059][ T483] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.236397][ T483] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.236843][ T483] ___sys_sendmsg (net/socket.c:2670) 
[ 41.237182][ T483] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 41.237533][ 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) 
[ 41.237968][ T483] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.238325][ T483] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.238671][ T483] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.239030][ T483] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.239371][ 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) 
[ 41.239710][ T483] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.240073][ T483] __sys_sendmsg (net/socket.c:2700) 
[ 41.240415][ T483] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 41.240846][ T483] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.241213][ T483] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.241555][ T483] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.241912][ T483] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.242334][  T483] RIP: 0033:0x7fcfd437c1e7
[ 41.242687][ 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)
[   41.243866][  T483] RSP: 002b:00007fff426f09b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.244374][  T483] RAX: ffffffffffffffda RBX: 00007fff426f10e0 RCX: 00007fcfd437c1e7
[   41.244885][  T483] RDX: 0000000000000000 RSI: 00007fff426f0a20 RDI: 0000000000000005
[   41.245386][  T483] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   41.245906][  T483] R10: 00007fcfd4279ee8 R11: 0000000000000246 R12: 0000000000000004
[   41.246408][  T483] R13: 00000000686e1f8e R14: 0000000000499600 R15: 0000000000000000
| [   41.372211][  T484] ------------[ cut here ]------------
| [ 41.372619][ T484] WARNING: CPU: 1 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) 
| [   41.373227][  T484] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   41.374486][  T484] Tainted: [W]=WARN
[   41.374713][  T484] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.375100][ 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) 
[ 41.375413][ T484] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   41.376496][  T484] RSP: 0018:ffffc900007d7140 EFLAGS: 00010246
[   41.376888][  T484] RAX: 0000000000000000 RBX: ffff8880020a1000 RCX: 0000000000000001
[   41.377354][  T484] RDX: 0000000000000000 RSI: ffffffffa269b941 RDI: ffffffffa1e555e0
[   41.377833][  T484] RBP: ffffc900007d7230 R08: ffff888005028800 R09: 0000000000000000
[   41.378285][  T484] R10: ffffc900007d75c8 R11: ffffffffa3450668 R12: 1ffff920000fae2c
[   41.378741][  T484] R13: 00000000000007d0 R14: ffffc900007d7880 R15: ffff888004da5fe0
[   41.379206][  T484] FS:  00007f53cc144800(0000) GS:ffff88808ad37000(0000) knlGS:0000000000000000
[   41.379750][  T484] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.380142][  T484] CR2: 00000000004e5ac8 CR3: 00000000090b7004 CR4: 0000000000772ef0
[   41.380596][  T484] PKRU: 55555554
[   41.380838][  T484] Call Trace:
[   41.381067][  T484]  <TASK>
[ 41.381223][ T484] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.381536][ T484] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.381854][ T484] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.382161][ T484] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.382466][ T484] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.382772][ T484] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.383088][ T484] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.383399][ T484] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.383785][ T484] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.384105][ T484] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.384404][ T484] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.384710][ T484] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.385198][ 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) 
[ 41.385512][ T484] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.386024][ T484] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.386329][ T484] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.386639][ T484] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.387118][ T484] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.387425][ T484] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.387735][ T484] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.388205][ T484] ? __create_object (mm/kmemleak.c:771) 
[ 41.388502][ T484] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.388806][ T484] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.389249][ T484] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.389630][ T484] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.389948][ T484] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.390256][ T484] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.390555][ T484] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.390891][ T484] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.391195][ T484] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.391496][ T484] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.391813][ T484] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.392132][ T484] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.392436][ T484] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.392745][ T484] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.393066][ T484] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.393372][ T484] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.393674][ T484] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.394005][ T484] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.394306][ 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) 
[ 41.394609][ T484] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 41.394925][ T484] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.395227][ T484] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.395537][ T484] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.395852][ T484] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.396165][ T484] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.396479][ T484] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.396787][ T484] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.397103][ T484] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.397507][ T484] ___sys_sendmsg (net/socket.c:2670) 
[ 41.397807][ T484] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 41.398125][ 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) 
[ 41.398509][ T484] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.398825][ T484] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.399135][ T484] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.399445][ T484] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.399748][ 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) 
[ 41.400060][ T484] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.400373][ T484] __sys_sendmsg (net/socket.c:2700) 
[ 41.400675][ T484] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 41.401067][ T484] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.401384][ T484] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.401687][ T484] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.401997][ T484] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.402376][  T484] RIP: 0033:0x7f53cc3111e7
[ 41.402688][ 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)
[   41.403766][  T484] RSP: 002b:00007ffc6fe3dad8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.404227][  T484] RAX: ffffffffffffffda RBX: 00007ffc6fe3e200 RCX: 00007f53cc3111e7
[   41.404682][  T484] RDX: 0000000000000000 RSI: 00007ffc6fe3db40 RDI: 0000000000000005
[   41.405150][  T484] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   41.405600][  T484] R10: 00007f53cc20eee8 R11: 0000000000000246 R12: 0000000000000004
[   41.406056][  T484] R13: 00000000686e1f8f R14: 0000000000499600 R15: 0000000000000000
| [   41.565807][  T485] ------------[ cut here ]------------
| [ 41.566166][ 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) 
| [   41.566776][  T485] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   41.568910][  T485] Tainted: [W]=WARN
[   41.569155][  T485] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.569535][ 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) 
[ 41.569857][ T485] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   41.570947][  T485] RSP: 0018:ffffc900006e7140 EFLAGS: 00010246
[   41.571337][  T485] RAX: 0000000000000000 RBX: ffff888008bf9000 RCX: 0000000000000001
[   41.571786][  T485] RDX: 0000000000000000 RSI: ffffffffa269b941 RDI: ffffffffa1e555e0
[   41.572248][  T485] RBP: ffffc900006e7230 R08: ffff888005913800 R09: 0000000000000000
[   41.572700][  T485] R10: ffffc900006e75c8 R11: ffffffffa3450668 R12: 1ffff920000dce2c
[   41.573159][  T485] R13: 00000000000007d0 R14: ffffc900006e7880 R15: ffff888004da5560
[   41.573607][  T485] FS:  00007fd5b45c4800(0000) GS:ffff88808acb7000(0000) knlGS:0000000000000000
[   41.574148][  T485] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.574531][  T485] CR2: 00000000004e5ac0 CR3: 0000000009149002 CR4: 0000000000772ef0
[   41.575007][  T485] PKRU: 55555554
[   41.575244][  T485] Call Trace:
[   41.575473][  T485]  <TASK>
[ 41.575630][ T485] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.575949][ T485] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.576250][ T485] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.576560][ T485] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.576881][ T485] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.577189][ T485] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.577521][ T485] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.577850][ T485] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.578237][ T485] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.578540][ T485] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.578869][ T485] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.579176][ T485] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.579490][ 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) 
[ 41.579792][ T485] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.580181][ T485] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.580491][ T485] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.580791][ T485] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.581103][ T485] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.581408][ T485] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.581708][ T485] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.582028][ T485] ? __create_object (mm/kmemleak.c:771) 
[ 41.582336][ T485] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.582639][ T485] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.582954][ T485] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.583332][ T485] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.583640][ T485] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.583961][ T485] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.584274][ T485] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.584582][ T485] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.584891][ T485] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.585192][ T485] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.585496][ T485] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.585797][ T485] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.586111][ T485] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.586420][ T485] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.586737][ T485] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.587050][ T485] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.587354][ T485] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.587677][ T485] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.587993][ 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) 
[ 41.588299][ T485] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 41.588607][ T485] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.588925][ T485] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.589230][ T485] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.589536][ T485] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.589847][ T485] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.590159][ T485] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.590468][ T485] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.590773][ T485] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.591181][ T485] ___sys_sendmsg (net/socket.c:2670) 
[ 41.591482][ T485] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 41.591785][ 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) 
[ 41.592174][ T485] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.592485][ T485] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.592795][ T485] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.593109][ T485] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.593413][ 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) 
[ 41.593719][ T485] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.594039][ T485] __sys_sendmsg (net/socket.c:2700) 
[ 41.594339][ T485] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 41.594717][ T485] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.595045][ T485] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.595353][ T485] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.595654][ T485] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.596044][  T485] RIP: 0033:0x7fd5b47911e7
[ 41.596355][ 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)
[   41.597446][  T485] RSP: 002b:00007ffdc7765518 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.597917][  T485] RAX: ffffffffffffffda RBX: 00007ffdc7765c40 RCX: 00007fd5b47911e7
[   41.598368][  T485] RDX: 0000000000000000 RSI: 00007ffdc7765580 RDI: 0000000000000005
[   41.598839][  T485] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   41.599292][  T485] R10: 00007fd5b468eee8 R11: 0000000000000246 R12: 0000000000000004
[   41.599748][  T485] R13: 00000000686e1f8f R14: 0000000000499600 R15: 0000000000000000
| [   41.735977][  T486] ------------[ cut here ]------------
| [ 41.736325][ T486] WARNING: CPU: 3 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) 
| [   41.737258][  T486] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   41.738463][  T486] Tainted: [W]=WARN
[   41.738678][  T486] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.739042][ 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) 
[ 41.739340][ T486] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   41.740374][  T486] RSP: 0018:ffffc900007e7140 EFLAGS: 00010246
[   41.740736][  T486] RAX: 0000000000000000 RBX: ffff888008a41000 RCX: 0000000000000001
[   41.741168][  T486] RDX: 0000000000000000 RSI: ffffffffa269b941 RDI: ffffffffa1e555e0
[   41.741598][  T486] RBP: ffffc900007e7230 R08: ffff88800a830800 R09: 0000000000000000
[   41.742038][  T486] R10: ffffc900007e75c8 R11: ffffffffa3450668 R12: 1ffff920000fce2c
[   41.742461][  T486] R13: 00000000000007d0 R14: ffffc900007e7880 R15: ffff888004da4ae0
[   41.742896][  T486] FS:  00007fe6e8b9d800(0000) GS:ffff88808ae37000(0000) knlGS:0000000000000000
[   41.743452][  T486] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.743861][  T486] CR2: 00000000004e73c8 CR3: 0000000009149005 CR4: 0000000000772ef0
[   41.744293][  T486] PKRU: 55555554
[   41.744507][  T486] Call Trace:
[   41.744722][  T486]  <TASK>
[ 41.744880][ T486] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.745175][ T486] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.745468][ T486] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.745759][ T486] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.746054][ T486] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.746342][ T486] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.746634][ T486] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.746938][ T486] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.747301][ T486] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.747605][ T486] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.747897][ T486] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.748184][ T486] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.748470][ 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) 
[ 41.748755][ T486] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.749119][ T486] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.749411][ T486] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.749704][ T486] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.750005][ T486] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.750293][ T486] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.750576][ T486] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.750866][ T486] ? __create_object (mm/kmemleak.c:771) 
[ 41.751154][ T486] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.751437][ T486] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.751722][ T486] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.752094][ T486] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.752386][ T486] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.752675][ T486] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.752969][ T486] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.753258][ T486] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.753545][ T486] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.753834][ T486] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.754128][ T486] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.754410][ T486] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.754702][ T486] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.754997][ T486] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.755286][ T486] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.755578][ T486] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.755885][ T486] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.756180][ T486] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.756473][ 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) 
[ 41.756761][ T486] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 41.757059][ T486] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.757342][ T486] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.757649][ T486] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.757946][ T486] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.758237][ T486] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.758537][ T486] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.758837][ T486] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.759120][ T486] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.759488][ T486] ___sys_sendmsg (net/socket.c:2670) 
[ 41.759770][ T486] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 41.760058][ 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) 
[ 41.760413][ T486] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.760708][ T486] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.761006][ T486] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.761298][ T486] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.761583][ 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) 
[ 41.761875][ T486] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.762170][ T486] __sys_sendmsg (net/socket.c:2700) 
[ 41.762451][ T486] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 41.762810][ T486] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.763115][ T486] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.763402][ T486] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.763688][ T486] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.764050][  T486] RIP: 0033:0x7fe6e8d6a1e7
[ 41.764348][ 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)
[   41.765371][  T486] RSP: 002b:00007fff08436b88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.765834][  T486] RAX: ffffffffffffffda RBX: 00007fff084372b0 RCX: 00007fe6e8d6a1e7
[   41.766258][  T486] RDX: 0000000000000000 RSI: 00007fff08436bf0 RDI: 0000000000000005
[   41.766692][  T486] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   41.767137][  T486] R10: 00007fe6e8c67ee8 R11: 0000000000000246 R12: 0000000000000004
[   41.767580][  T486] R13: 00000000686e1f8f R14: 0000000000499600 R15: 0000000000000000
| [   41.893951][  T487] ------------[ cut here ]------------
| [ 41.894369][ T487] WARNING: CPU: 1 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) 
| [   41.895008][  T487] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   41.896440][  T487] Tainted: [W]=WARN
[   41.896679][  T487] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.897089][ 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) 
[ 41.897515][ T487] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   41.898735][  T487] RSP: 0018:ffffc90000777140 EFLAGS: 00010246
[   41.899247][  T487] RAX: 0000000000000000 RBX: ffff88800503c000 RCX: 0000000000000001
[   41.899761][  T487] RDX: 0000000000000000 RSI: ffffffffa269b941 RDI: ffffffffa1e555e0
[   41.900297][  T487] RBP: ffffc90000777230 R08: ffff88800e98b800 R09: 0000000000000000
[   41.900878][  T487] R10: ffffc900007775c8 R11: ffffffffa3450668 R12: 1ffff920000eee2c
[   41.901370][  T487] R13: 00000000000007d0 R14: ffffc90000777880 R15: ffff888004da4060
[   41.901880][  T487] FS:  00007f9dd55ad800(0000) GS:ffff88808ad37000(0000) knlGS:0000000000000000
[   41.902582][  T487] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.903107][  T487] CR2: 00000000004e5ab8 CR3: 00000000094be005 CR4: 0000000000772ef0
[   41.903672][  T487] PKRU: 55555554
[   41.904044][  T487] Call Trace:
[   41.904443][  T487]  <TASK>
[ 41.904635][ T487] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.905060][ T487] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.905431][ T487] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.905851][ T487] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.906344][ T487] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.906881][ T487] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.907399][ T487] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.907793][ T487] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.908375][ T487] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.908758][ T487] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.909288][ T487] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.909672][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.910090][ 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) 
[ 41.910464][ T487] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.911032][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.911554][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.912115][ T487] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.912520][ T487] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.912906][ T487] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.913296][ T487] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.913670][ T487] ? __create_object (mm/kmemleak.c:771) 
[ 41.914050][ T487] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.914417][ T487] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.914775][ T487] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.915239][ T487] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.915603][ T487] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.916027][ T487] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.916347][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.916662][ T487] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.917028][ T487] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.917519][ T487] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.917981][ T487] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.918333][ T487] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.918729][ T487] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.919154][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.919522][ T487] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.919906][ T487] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.920238][ T487] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.920645][ T487] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.920996][ 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) 
[ 41.921318][ T487] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 41.921695][ T487] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.922176][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.922526][ T487] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.922864][ T487] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.923276][ T487] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.923708][ T487] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.924137][ T487] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.924459][ T487] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.924979][ T487] ___sys_sendmsg (net/socket.c:2670) 
[ 41.925296][ T487] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 41.925606][ 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) 
[ 41.926101][ T487] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.926524][ T487] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.926927][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.927271][ T487] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.927723][ 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) 
[ 41.928168][ T487] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.928501][ T487] __sys_sendmsg (net/socket.c:2700) 
[ 41.928917][ T487] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 41.929336][ T487] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.929670][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.930170][ T487] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.930534][ T487] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.931027][  T487] RIP: 0033:0x7f9dd577a1e7
[ 41.931445][ 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)
[   41.932745][  T487] RSP: 002b:00007ffc4b5e6228 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.933258][  T487] RAX: ffffffffffffffda RBX: 00007ffc4b5e6950 RCX: 00007f9dd577a1e7
[   41.933883][  T487] RDX: 0000000000000000 RSI: 00007ffc4b5e6290 RDI: 0000000000000005
[   41.934515][  T487] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   41.935079][  T487] R10: 00007f9dd5677ee8 R11: 0000000000000246 R12: 0000000000000004
[   41.935548][  T487] R13: 00000000686e1f8f R14: 0000000000499600 R15: 0000000000000000
| [   42.077095][  T488] ------------[ cut here ]------------
| [ 42.077458][ T488] WARNING: CPU: 3 PID: 488 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) 
| [   42.078090][  T488] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   42.079395][  T488] Tainted: [W]=WARN
[   42.079642][  T488] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.080061][ T488] 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) 
[ 42.080381][ T488] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   42.081468][  T488] RSP: 0018:ffffc900007e7140 EFLAGS: 00010246
[   42.081869][  T488] RAX: 0000000000000000 RBX: ffff8880097c9000 RCX: 0000000000000001
[   42.082325][  T488] RDX: 0000000000000000 RSI: ffffffffa269b941 RDI: ffffffffa1e555e0
[   42.082780][  T488] RBP: ffffc900007e7230 R08: ffff888009783800 R09: 0000000000000000
[   42.083412][  T488] R10: ffffc900007e75c8 R11: ffffffffa3450668 R12: 1ffff920000fce2c
[   42.084047][  T488] R13: 00000000000007d0 R14: ffffc900007e7880 R15: ffff888004f126e0
[   42.084498][  T488] FS:  00007f93e48a1800(0000) GS:ffff88808ae37000(0000) knlGS:0000000000000000
[   42.085211][  T488] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.085587][  T488] CR2: 00000000004e59c0 CR3: 000000000a063006 CR4: 0000000000772ef0
[   42.086081][  T488] PKRU: 55555554
[   42.086311][  T488] Call Trace:
[   42.086550][  T488]  <TASK>
[ 42.086707][ T488] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.087035][ T488] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.087337][ T488] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.087652][ T488] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 42.087966][ T488] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 42.088268][ T488] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 42.088582][ T488] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 42.088901][ T488] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.089285][ T488] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.089586][ T488] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.089898][ T488] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.090204][ T488] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.090510][ T488] ? __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) 
[ 42.090845][ T488] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.091237][ T488] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.091547][ T488] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.091856][ T488] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.092159][ T488] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.092463][ T488] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.092763][ T488] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.093069][ T488] ? __create_object (mm/kmemleak.c:771) 
[ 42.093379][ T488] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.093688][ T488] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.093999][ T488] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.094377][ T488] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.094687][ T488] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.095007][ T488] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.095306][ T488] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.095618][ T488] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.095930][ T488] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.096230][ T488] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.096534][ T488] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.096848][ T488] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.097175][ T488] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.097496][ T488] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.097807][ T488] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.098135][ T488] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.098440][ T488] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.098753][ T488] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.099069][ T488] ? 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) 
[ 42.099376][ T488] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.099681][ T488] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.099991][ T488] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.100302][ T488] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.100610][ T488] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.100919][ T488] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.101229][ T488] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.101536][ T488] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.101845][ T488] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.102232][ T488] ___sys_sendmsg (net/socket.c:2670) 
[ 42.102538][ T488] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.102856][ T488] ? __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) 
[ 42.103238][ T488] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.103541][ T488] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.103856][ T488] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.104166][ T488] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.104641][ T488] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 42.104952][ T488] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.105266][ T488] __sys_sendmsg (net/socket.c:2700) 
[ 42.105564][ T488] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.105946][ T488] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.106259][ T488] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.106563][ T488] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.106880][ T488] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.107265][  T488] RIP: 0033:0x7f93e4a6e1e7
[ 42.107590][ T488] 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)
[   42.108682][  T488] RSP: 002b:00007ffff4de8a68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.109150][  T488] RAX: ffffffffffffffda RBX: 00007ffff4de9190 RCX: 00007f93e4a6e1e7
[   42.109612][  T488] RDX: 0000000000000000 RSI: 00007ffff4de8ad0 RDI: 0000000000000005
[   42.110074][  T488] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   42.110610][  T488] R10: 00007f93e496bee8 R11: 0000000000000246 R12: 0000000000000004


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