======================================
| [   35.808299][  T444] GACT probability NOT on
| [   41.691289][  T501] ------------[ cut here ]------------
| [ 41.691728][ T501] WARNING: CPU: 3 PID: 501 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) 
| [   41.693024][  T501] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q dummy vrf veth
[   41.694174][  T501] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.694531][ T501] 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) 
[ 41.694820][ T501] 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
[   41.695816][  T501] RSP: 0018:ffffc900006a7140 EFLAGS: 00010246
[   41.696178][  T501] RAX: 0000000000000000 RBX: ffff888008409000 RCX: 0000000000000001
[   41.696593][  T501] RDX: 0000000000000000 RSI: ffffffffa549b941 RDI: ffffffffa4c555e0
[   41.697006][  T501] RBP: ffffc900006a7230 R08: ffff88800ab8e800 R09: 0000000000000000
[   41.697432][  T501] R10: ffffc900006a75c8 R11: ffffffffa6250668 R12: 1ffff920000d4e2c
[   41.697843][  T501] R13: 00000000000007d0 R14: ffffc900006a7880 R15: ffff88800b935fe0
[   41.698263][  T501] FS:  00007f11e5907800(0000) GS:ffff88808ee37000(0000) knlGS:0000000000000000
[   41.698993][  T501] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.699364][  T501] CR2: 00000000004e5aa0 CR3: 000000000e2ce005 CR4: 0000000000772ef0
[   41.699782][  T501] PKRU: 55555554
[   41.699993][  T501] Call Trace:
[   41.700211][  T501]  <TASK>
[ 41.700355][ T501] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.700637][ T501] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.700912][ T501] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.701199][ T501] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.701481][ T501] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.701763][ T501] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.702043][ T501] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.702339][ T501] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.702688][ T501] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.702961][ T501] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.703246][ T501] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.703523][ T501] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.703800][ T501] ? __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) 
[ 41.704085][ T501] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.704440][ T501] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.704717][ T501] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.704990][ T501] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.705280][ T501] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.705556][ T501] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.705829][ T501] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.706116][ T501] ? __create_object (mm/kmemleak.c:771) 
[ 41.706393][ T501] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.706671][ T501] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.706947][ T501] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.707303][ T501] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.707591][ T501] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.707871][ T501] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.708153][ T501] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.708433][ T501] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.708739][ T501] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.709011][ T501] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.709299][ T501] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.709571][ T501] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.709869][ T501] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.710155][ T501] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.710432][ T501] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.710706][ T501] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.710983][ T501] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.711278][ T501] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.711549][ T501] ? 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) 
[ 41.711833][ T501] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 41.712121][ T501] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.712396][ T501] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.712675][ T501] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.712955][ T501] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.713239][ T501] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.713521][ T501] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.713808][ T501] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.714089][ T501] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.714453][ T501] ___sys_sendmsg (net/socket.c:2670) 
[ 41.714728][ T501] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 41.715000][ T501] ? __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) 
[ 41.715353][ T501] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.715633][ T501] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.715915][ T501] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.716203][ T501] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.716479][ T501] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 41.716752][ T501] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.717035][ T501] __sys_sendmsg (net/socket.c:2700) 
[ 41.717317][ T501] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 41.717659][ T501] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.717953][ T501] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.718243][ T501] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.718519][ T501] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.718858][  T501] RIP: 0033:0x7f11e5ad41e7
[ 41.719154][ T501] 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)
[   41.720148][  T501] RSP: 002b:00007ffe7170bb28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.720577][  T501] RAX: ffffffffffffffda RBX: 00007ffe7170c250 RCX: 00007f11e5ad41e7
[   41.720990][  T501] RDX: 0000000000000000 RSI: 00007ffe7170bb90 RDI: 0000000000000005
[   41.721412][  T501] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   41.721831][  T501] R10: 00007f11e59d1ee8 R11: 0000000000000246 R12: 0000000000000004
[   41.722253][  T501] R13: 00000000686e141d R14: 0000000000499600 R15: 0000000000000000
| [   41.816640][  T502] ------------[ cut here ]------------
| [ 41.816948][ T502] WARNING: CPU: 0 PID: 502 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) 
| [   41.817505][  T502] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q dummy vrf veth
| [   41.818672][  T502] Tainted: [W]=WARN
[   41.818887][  T502] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.820608][ T502] 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) 
[ 41.820917][ T502] 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
[   41.821900][  T502] RSP: 0018:ffffc900006e7140 EFLAGS: 00010246
[   41.822257][  T502] RAX: 0000000000000000 RBX: ffff888008061000 RCX: 0000000000000001
[   41.822672][  T502] RDX: 0000000000000000 RSI: ffffffffa549b941 RDI: ffffffffa4c555e0
[   41.823088][  T502] RBP: ffffc900006e7230 R08: ffff888004fa5000 R09: 0000000000000000
[   41.823500][  T502] R10: ffffc900006e75c8 R11: ffffffffa6250668 R12: 1ffff920000dce2c
[   41.823909][  T502] R13: 00000000000007d0 R14: ffffc900006e7880 R15: ffff88800b937be0
[   41.824325][  T502] FS:  00007f7cddabb800(0000) GS:ffff88808ecb7000(0000) knlGS:0000000000000000
[   41.824816][  T502] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.825167][  T502] CR2: 00000000004e5aa8 CR3: 00000000051f4004 CR4: 0000000000772ef0
[   41.825580][  T502] PKRU: 55555554
[   41.825785][  T502] Call Trace:
[   41.825989][  T502]  <TASK>
[ 41.826138][ T502] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.826424][ T502] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.826697][ T502] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.826975][ T502] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.827260][ T502] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.827542][ T502] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.827820][ T502] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.828107][ T502] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.828458][ T502] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.828732][ T502] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.829003][ T502] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.829288][ T502] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.829564][ T502] ? __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) 
[ 41.829839][ T502] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.830193][ T502] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.830476][ T502] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.830754][ T502] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.831029][ T502] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.831310][ T502] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.831586][ T502] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.831862][ T502] ? __create_object (mm/kmemleak.c:771) 
[ 41.832146][ T502] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.832420][ T502] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.832698][ T502] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.833037][ T502] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.833325][ T502] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.833608][ T502] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.833883][ T502] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.834176][ T502] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.834465][ T502] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.834744][ T502] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.835017][ T502] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.835299][ T502] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.835574][ T502] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.835850][ T502] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.836136][ T502] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.836411][ T502] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.836686][ T502] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.836974][ T502] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.837254][ T502] ? 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) 
[ 41.837533][ T502] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 41.837809][ T502] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.838087][ T502] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.838366][ T502] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.838645][ T502] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.838926][ T502] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.839215][ T502] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.839492][ T502] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.839767][ T502] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.840124][ T502] ___sys_sendmsg (net/socket.c:2670) 
[ 41.840399][ T502] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 41.840672][ T502] ? __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) 
[ 41.841018][ T502] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.841305][ T502] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.841589][ T502] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.841869][ T502] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.842155][ T502] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 41.842428][ T502] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.842710][ T502] __sys_sendmsg (net/socket.c:2700) 
[ 41.842987][ T502] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 41.843341][ T502] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.843629][ T502] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.843902][ T502] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.844185][ T502] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.844540][  T502] RIP: 0033:0x7f7cddc881e7
[ 41.844824][ T502] 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)
[   41.845812][  T502] RSP: 002b:00007ffec7214828 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.846233][  T502] RAX: ffffffffffffffda RBX: 00007ffec7214f50 RCX: 00007f7cddc881e7
[   41.846642][  T502] RDX: 0000000000000000 RSI: 00007ffec7214890 RDI: 0000000000000005
[   41.847068][  T502] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   41.847499][  T502] R10: 00007f7cddb85ee8 R11: 0000000000000246 R12: 0000000000000004
[   41.847908][  T502] R13: 00000000686e141d R14: 0000000000499600 R15: 0000000000000000
| [   41.977260][  T503] ------------[ cut here ]------------
| [ 41.977583][ T503] WARNING: CPU: 3 PID: 503 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) 
| [   41.978181][  T503] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q dummy vrf veth
| [   41.980535][  T503] Tainted: [W]=WARN
[   41.980754][  T503] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.981111][ T503] 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) 
[ 41.981404][ T503] 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
[   41.982398][  T503] RSP: 0018:ffffc900006f7140 EFLAGS: 00010246
[   41.982777][  T503] RAX: 0000000000000000 RBX: ffff888004e11000 RCX: 0000000000000001
[   41.983196][  T503] RDX: 0000000000000000 RSI: ffffffffa549b941 RDI: ffffffffa4c555e0
[   41.983698][  T503] RBP: ffffc900006f7230 R08: ffff88800b6d8800 R09: 0000000000000000
[   41.984117][  T503] R10: ffffc900006f75c8 R11: ffffffffa6250668 R12: 1ffff920000dee2c
[   41.984553][  T503] R13: 00000000000007d0 R14: ffffc900006f7880 R15: ffff88800b937160
[   41.984986][  T503] FS:  00007fa4691b9800(0000) GS:ffff88808ee37000(0000) knlGS:0000000000000000
[   41.985474][  T503] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.985832][  T503] CR2: 00000000004e73c8 CR3: 000000000e2c4002 CR4: 0000000000772ef0
[   41.986253][  T503] PKRU: 55555554
[   41.986458][  T503] Call Trace:
[   41.986681][  T503]  <TASK>
[ 41.986820][ T503] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.987111][ T503] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.987385][ T503] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.987681][ T503] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.987956][ T503] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.988237][ T503] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.988524][ T503] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.988822][ T503] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.989178][ T503] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.989453][ T503] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.989738][ T503] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.990015][ T503] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.990302][ T503] ? __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) 
[ 41.990585][ T503] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.990945][ T503] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.991230][ T503] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.991506][ T503] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.991792][ T503] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.992068][ T503] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.992356][ T503] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.992632][ T503] ? __create_object (mm/kmemleak.c:771) 
[ 41.992924][ T503] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.993223][ T503] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.993497][ T503] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.993856][ T503] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.994147][ T503] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.994446][ T503] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.994740][ T503] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.995027][ T503] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.995310][ T503] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.995584][ T503] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.995876][ T503] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.996157][ T503] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.996433][ T503] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.996711][ T503] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.997003][ T503] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.997293][ T503] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.997567][ T503] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.997864][ T503] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.998150][ T503] ? 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) 
[ 41.998424][ T503] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 41.998700][ T503] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.998987][ T503] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.999280][ T503] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.999559][ T503] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.999845][ T503] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.000137][ T503] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.000414][ T503] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.000686][ T503] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.001051][ T503] ___sys_sendmsg (net/socket.c:2670) 
[ 42.001337][ T503] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.001610][ T503] ? __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) 
[ 42.001960][ T503] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.002245][ T503] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.002522][ T503] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.002799][ T503] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.003103][ T503] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 42.003382][ T503] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.003668][ T503] __sys_sendmsg (net/socket.c:2700) 
[ 42.003958][ T503] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.004311][ T503] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.004610][ T503] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.004887][ T503] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.005188][ T503] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.005536][  T503] RIP: 0033:0x7fa4693861e7
[ 42.005820][ T503] 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)
[   42.006821][  T503] RSP: 002b:00007fffd257f9c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.007260][  T503] RAX: ffffffffffffffda RBX: 00007fffd25800f0 RCX: 00007fa4693861e7
[   42.007679][  T503] RDX: 0000000000000000 RSI: 00007fffd257fa30 RDI: 0000000000000005
[   42.008108][  T503] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   42.008519][  T503] R10: 00007fa469283ee8 R11: 0000000000000246 R12: 0000000000000004
[   42.008926][  T503] R13: 00000000686e141d R14: 0000000000499600 R15: 0000000000000000
| [   42.118019][  T504] ------------[ cut here ]------------
| [ 42.118374][ T504] WARNING: CPU: 3 PID: 504 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) 
| [   42.118918][  T504] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q dummy vrf veth
| [   42.121506][  T504] Tainted: [W]=WARN
[   42.121715][  T504] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.122057][ T504] 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) 
[ 42.122370][ T504] 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
[   42.123378][  T504] RSP: 0018:ffffc900006f7140 EFLAGS: 00010246
[   42.123729][  T504] RAX: 0000000000000000 RBX: ffff88800a11c000 RCX: 0000000000000001
[   42.124150][  T504] RDX: 0000000000000000 RSI: ffffffffa549b941 RDI: ffffffffa4c555e0
[   42.124679][  T504] RBP: ffffc900006f7230 R08: ffff88800a952000 R09: 0000000000000000
[   42.125111][  T504] R10: ffffc900006f75c8 R11: ffffffffa6250668 R12: 1ffff920000dee2c
[   42.125548][  T504] R13: 00000000000007d0 R14: ffffc900006f7880 R15: ffff88800b936a60
[   42.125961][  T504] FS:  00007fe15a9bf800(0000) GS:ffff88808ee37000(0000) knlGS:0000000000000000
[   42.126469][  T504] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.126818][  T504] CR2: 00000000004e5ab0 CR3: 0000000008de8003 CR4: 0000000000772ef0
[   42.127249][  T504] PKRU: 55555554
[   42.127472][  T504] Call Trace:
[   42.127679][  T504]  <TASK>
[ 42.127819][ T504] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.128114][ T504] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.128401][ T504] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.128682][ T504] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 42.128957][ T504] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 42.129252][ T504] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 42.129546][ T504] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 42.129831][ T504] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.130195][ T504] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.130485][ T504] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.130767][ T504] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.131044][ T504] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.131339][ T504] ? __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) 
[ 42.131631][ T504] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.131969][ T504] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.132260][ T504] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.132551][ T504] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.132829][ T504] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.133116][ T504] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.133401][ T504] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.133686][ T504] ? __create_object (mm/kmemleak.c:771) 
[ 42.133964][ T504] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.134254][ T504] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.134552][ T504] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.134896][ T504] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.135190][ T504] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.135518][ T504] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.135821][ T504] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.136118][ T504] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.136393][ T504] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.136677][ T504] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.136956][ T504] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.137241][ T504] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.137517][ T504] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.137817][ T504] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.138111][ T504] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.138387][ T504] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.138676][ T504] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.138962][ T504] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.139243][ T504] ? 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) 
[ 42.139519][ T504] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.139820][ T504] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.140105][ T504] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.140388][ T504] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.140664][ T504] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.140952][ T504] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.141245][ T504] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.141522][ T504] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.141807][ T504] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.142188][ T504] ___sys_sendmsg (net/socket.c:2670) 
[ 42.142460][ T504] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.142741][ T504] ? __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) 
[ 42.143104][ T504] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.143382][ T504] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.143659][ T504] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.143952][ T504] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.144245][ T504] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 42.144535][ T504] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.144830][ T504] __sys_sendmsg (net/socket.c:2700) 
[ 42.145116][ T504] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.145457][ T504] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.145745][ T504] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.146039][ T504] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.146337][ T504] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.146678][  T504] RIP: 0033:0x7fe15ab8c1e7
[ 42.146979][ T504] 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)
[   42.148007][  T504] RSP: 002b:00007ffca4871b38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.148447][  T504] RAX: ffffffffffffffda RBX: 00007ffca4872260 RCX: 00007fe15ab8c1e7
[   42.148857][  T504] RDX: 0000000000000000 RSI: 00007ffca4871ba0 RDI: 0000000000000005
[   42.149288][  T504] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   42.149696][  T504] R10: 00007fe15aa89ee8 R11: 0000000000000246 R12: 0000000000000004
[   42.150136][  T504] R13: 00000000686e141d R14: 0000000000499600 R15: 0000000000000000
| [   42.277430][  T505] ------------[ cut here ]------------
| [ 42.277758][ T505] WARNING: CPU: 0 PID: 505 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) 
| [   42.278318][  T505] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q dummy vrf veth
| [   42.279479][  T505] Tainted: [W]=WARN
[   42.279693][  T505] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.280032][ T505] 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) 
[ 42.280673][ T505] 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
[   42.281688][  T505] RSP: 0018:ffffc900006f7140 EFLAGS: 00010246
[   42.282054][  T505] RAX: 0000000000000000 RBX: ffff888009a81000 RCX: 0000000000000001
[   42.282488][  T505] RDX: 0000000000000000 RSI: ffffffffa549b941 RDI: ffffffffa4c555e0
[   42.282896][  T505] RBP: ffffc900006f7230 R08: ffff88800abde800 R09: 0000000000000000
[   42.283310][  T505] R10: ffffc900006f75c8 R11: ffffffffa6250668 R12: 1ffff920000dee2c
[   42.283774][  T505] R13: 00000000000007d0 R14: ffffc900006f7880 R15: ffff88800b51e360
[   42.284403][  T505] FS:  00007f975faaa800(0000) GS:ffff88808ecb7000(0000) knlGS:0000000000000000
[   42.284924][  T505] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.285285][  T505] CR2: 00000000004e55b8 CR3: 000000000e383003 CR4: 0000000000772ef0
[   42.285719][  T505] PKRU: 55555554
[   42.285933][  T505] Call Trace:
[   42.286161][  T505]  <TASK>
[ 42.286302][ T505] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.286613][ T505] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.286886][ T505] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.287174][ T505] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 42.287457][ T505] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 42.287735][ T505] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 42.288018][ T505] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 42.288309][ T505] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.288687][ T505] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.288960][ T505] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.289250][ T505] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.289527][ T505] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.289802][ T505] ? __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) 
[ 42.290105][ T505] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.290460][ T505] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.290735][ T505] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.291005][ T505] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.291288][ T505] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.291579][ T505] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.291854][ T505] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.292137][ T505] ? __create_object (mm/kmemleak.c:771) 
[ 42.292443][ T505] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.292718][ T505] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.293010][ T505] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.293360][ T505] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.293668][ T505] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.293946][ T505] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.294236][ T505] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.294537][ T505] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.294812][ T505] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.295110][ T505] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.295409][ T505] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.295683][ T505] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.295967][ T505] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.296254][ T505] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.296557][ T505] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.296832][ T505] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.297127][ T505] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.297412][ T505] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.297700][ T505] ? 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) 
[ 42.297975][ T505] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.298290][ T505] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.298587][ T505] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.298868][ T505] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.299173][ T505] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.299457][ T505] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.299748][ T505] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.300026][ T505] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.300318][ T505] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.300698][ T505] ___sys_sendmsg (net/socket.c:2670) 
[ 42.300973][ T505] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.301255][ T505] ? __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) 
[ 42.301595][ T505] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.301869][ T505] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.302171][ T505] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.302461][ T505] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.302734][ T505] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 42.303009][ T505] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.303300][ T505] __sys_sendmsg (net/socket.c:2700) 
[ 42.303664][ T505] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.304004][ T505] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.304306][ T505] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.304595][ T505] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.304885][ T505] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.305238][  T505] RIP: 0033:0x7f975fc771e7
[ 42.305520][ T505] 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)
[   42.306502][  T505] RSP: 002b:00007ffcdf9461e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.306923][  T505] RAX: ffffffffffffffda RBX: 00007ffcdf946910 RCX: 00007f975fc771e7
[   42.307345][  T505] RDX: 0000000000000000 RSI: 00007ffcdf946250 RDI: 0000000000000005
[   42.307769][  T505] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   42.308217][  T505] R10: 00007f975fb74ee8 R11: 0000000000000246 R12: 0000000000000004
[   42.308637][  T505] R13: 00000000686e141d R14: 0000000000499600 R15: 0000000000000000
| [   42.412199][  T506] ------------[ cut here ]------------
| [ 42.412553][ T506] WARNING: CPU: 2 PID: 506 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) 
| [   42.414741][  T506] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q dummy vrf veth
| [   42.415965][  T506] Tainted: [W]=WARN
[   42.416199][  T506] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.416565][ T506] 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) 
[ 42.416881][ T506] 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
[   42.417897][  T506] RSP: 0018:ffffc90000707140 EFLAGS: 00010246
[   42.418301][  T506] RAX: 0000000000000000 RBX: ffff88800a801000 RCX: 0000000000000001
[   42.418761][  T506] RDX: 0000000000000000 RSI: ffffffffa549b941 RDI: ffffffffa4c555e0
[   42.419210][  T506] RBP: ffffc90000707230 R08: ffff88800a1dd000 R09: 0000000000000000
[   42.419658][  T506] R10: ffffc900007075c8 R11: ffffffffa6250668 R12: 1ffff920000e0e2c
[   42.420115][  T506] R13: 00000000000007d0 R14: ffffc90000707880 R15: ffff88800b51ea60
[   42.420569][  T506] FS:  00007fe8b74ef800(0000) GS:ffff88808edb7000(0000) knlGS:0000000000000000
[   42.421103][  T506] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.421465][  T506] CR2: 00000000004e5ac8 CR3: 000000000582d003 CR4: 0000000000772ef0
[   42.421906][  T506] PKRU: 55555554
[   42.422146][  T506] Call Trace:
[   42.422374][  T506]  <TASK>
[ 42.422536][ T506] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.422876][ T506] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.423188][ T506] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.423497][ T506] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 42.423790][ T506] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 42.424092][ T506] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 42.424402][ T506] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 42.424732][ T506] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.425113][ T506] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.425424][ T506] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.425713][ T506] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.426009][ T506] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.426326][ T506] ? __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) 
[ 42.426612][ T506] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.426987][ T506] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.427303][ T506] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.427590][ T506] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.427890][ T506] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.428199][ T506] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.428486][ T506] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.428768][ T506] ? __create_object (mm/kmemleak.c:771) 
[ 42.429063][ T506] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.429363][ T506] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.429647][ T506] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.430001][ T506] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.430304][ T506] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.430596][ T506] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.430879][ T506] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.431180][ T506] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.431483][ T506] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.431770][ T506] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.432058][ T506] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.432357][ T506] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.432644][ T506] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.432936][ T506] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.433253][ T506] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.433559][ T506] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.433855][ T506] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.434173][ T506] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.434470][ T506] ? 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) 
[ 42.434759][ T506] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.435060][ T506] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.435370][ T506] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.435689][ T506] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.435980][ T506] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.436279][ T506] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.436576][ T506] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.436886][ T506] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.437184][ T506] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.437551][ T506] ___sys_sendmsg (net/socket.c:2670) 
[ 42.437832][ T506] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.438138][ T506] ? __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) 
[ 42.438493][ T506] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.438783][ T506] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.439071][ T506] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.439373][ T506] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.439657][ T506] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 42.439942][ T506] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.440250][ T506] __sys_sendmsg (net/socket.c:2700) 
[ 42.440537][ T506] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.440887][ T506] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.441212][ T506] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.441498][ T506] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.441787][ T506] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.442168][  T506] RIP: 0033:0x7fe8b76bc1e7
[ 42.442471][ T506] 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)
[   42.443469][  T506] RSP: 002b:00007ffe017400b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.443894][  T506] RAX: ffffffffffffffda RBX: 00007ffe017407e0 RCX: 00007fe8b76bc1e7
[   42.444340][  T506] RDX: 0000000000000000 RSI: 00007ffe01740120 RDI: 0000000000000005
[   42.444767][  T506] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   42.445199][  T506] R10: 00007fe8b75b9ee8 R11: 0000000000000246 R12: 0000000000000004
[   42.445621][  T506] R13: 00000000686e141e R14: 0000000000499600 R15: 0000000000000000
| [   42.568318][  T507] ------------[ cut here ]------------
| [ 42.568632][ T507] WARNING: CPU: 3 PID: 507 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) 
| [   42.569865][  T507] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q dummy vrf veth
| [   42.571001][  T507] Tainted: [W]=WARN
[   42.571231][  T507] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.571573][ T507] 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) 
[ 42.571856][ T507] 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
[   42.572843][  T507] RSP: 0018:ffffc90000717140 EFLAGS: 00010246
[   42.573201][  T507] RAX: 0000000000000000 RBX: ffff88800ab74000 RCX: 0000000000000001
[   42.573609][  T507] RDX: 0000000000000000 RSI: ffffffffa549b941 RDI: ffffffffa4c555e0
[   42.574017][  T507] RBP: ffffc90000717230 R08: ffff888009f52000 R09: 0000000000000000
[   42.574488][  T507] R10: ffffc900007175c8 R11: ffffffffa6250668 R12: 1ffff920000e2e2c
[   42.574908][  T507] R13: 00000000000007d0 R14: ffffc90000717880 R15: ffff88800b51cae0
[   42.575335][  T507] FS:  00007ff872cdb800(0000) GS:ffff88808ee37000(0000) knlGS:0000000000000000
[   42.575823][  T507] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.576292][  T507] CR2: 00000000004e5ac0 CR3: 00000000050a4001 CR4: 0000000000772ef0
[   42.576707][  T507] PKRU: 55555554
[   42.576918][  T507] Call Trace:
[   42.577129][  T507]  <TASK>
[ 42.577270][ T507] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.577550][ T507] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.577823][ T507] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.578106][ T507] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 42.578384][ T507] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 42.578659][ T507] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 42.578944][ T507] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 42.579232][ T507] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.579583][ T507] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.579855][ T507] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.580134][ T507] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.580409][ T507] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.580692][ T507] ? __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) 
[ 42.580979][ T507] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.581335][ T507] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.581615][ T507] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.581894][ T507] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.582189][ T507] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.582470][ T507] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.582744][ T507] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.583030][ T507] ? __create_object (mm/kmemleak.c:771) 
[ 42.583320][ T507] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.583597][ T507] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.583870][ T507] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.584229][ T507] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.584559][ T507] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.584849][ T507] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.585137][ T507] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.585431][ T507] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.585705][ T507] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.585983][ T507] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.586270][ T507] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.586546][ T507] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.586823][ T507] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.587123][ T507] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.587418][ T507] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.587690][ T507] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.587963][ T507] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.588256][ T507] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.588536][ T507] ? 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) 
[ 42.588815][ T507] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.589110][ T507] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.589388][ T507] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.589665][ T507] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.589939][ T507] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.590222][ T507] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.590504][ T507] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.590779][ T507] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.591051][ T507] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.591420][ T507] ___sys_sendmsg (net/socket.c:2670) 
[ 42.591692][ T507] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.591966][ T507] ? __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) 
[ 42.592319][ T507] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.592596][ T507] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.592869][ T507] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.593182][ T507] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.593458][ T507] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 42.593737][ T507] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.594016][ T507] __sys_sendmsg (net/socket.c:2700) 
[ 42.594308][ T507] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.594697][ T507] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.594986][ T507] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.595270][ T507] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.595573][ T507] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.595919][  T507] RIP: 0033:0x7ff872ea81e7
[ 42.596211][ T507] 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)
[   42.597255][  T507] RSP: 002b:00007ffca55f46d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.597690][  T507] RAX: ffffffffffffffda RBX: 00007ffca55f4e00 RCX: 00007ff872ea81e7
[   42.598116][  T507] RDX: 0000000000000000 RSI: 00007ffca55f4740 RDI: 0000000000000005
[   42.598530][  T507] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   42.598944][  T507] R10: 00007ff872da5ee8 R11: 0000000000000246 R12: 0000000000000004
[   42.599370][  T507] R13: 00000000686e141e R14: 0000000000499600 R15: 0000000000000000
| [   42.689324][  T508] ------------[ cut here ]------------
| [ 42.689659][ T508] WARNING: CPU: 2 PID: 508 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) 
| [   42.690230][  T508] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q dummy vrf veth
| [   42.692727][  T508] Tainted: [W]=WARN
[   42.692957][  T508] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.693318][ T508] 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) 
[ 42.693614][ T508] 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
[   42.694629][  T508] RSP: 0018:ffffc90000607140 EFLAGS: 00010246
[   42.694990][  T508] RAX: 0000000000000000 RBX: ffff88800a119000 RCX: 0000000000000001
[   42.695424][  T508] RDX: 0000000000000000 RSI: ffffffffa549b941 RDI: ffffffffa4c555e0
[   42.695844][  T508] RBP: ffffc90000607230 R08: ffff88800b623800 R09: 0000000000000000
[   42.696279][  T508] R10: ffffc900006075c8 R11: ffffffffa6250668 R12: 1ffff920000c0e2c
[   42.696702][  T508] R13: 00000000000007d0 R14: ffffc90000607880 R15: ffff88800b51c3e0
[   42.697132][  T508] FS:  00007f1df254e800(0000) GS:ffff88808edb7000(0000) knlGS:0000000000000000
[   42.697651][  T508] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.698016][  T508] CR2: 00000000004e73f0 CR3: 00000000051a8006 CR4: 0000000000772ef0
[   42.698455][  T508] PKRU: 55555554
[   42.698675][  T508] Call Trace:
[   42.698889][  T508]  <TASK>
[ 42.699043][ T508] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.699346][ T508] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.699634][ T508] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.699924][ T508] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 42.700227][ T508] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 42.700515][ T508] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 42.700806][ T508] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 42.701107][ T508] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.701475][ T508] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.701759][ T508] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.702049][ T508] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.702351][ T508] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.702639][ T508] ? __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) 
[ 42.702928][ T508] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.703287][ T508] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.703575][ T508] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.703858][ T508] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.704160][ T508] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.704462][ T508] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.704751][ T508] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.705032][ T508] ? __create_object (mm/kmemleak.c:771) 
[ 42.705333][ T508] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.705622][ T508] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.705907][ T508] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.706268][ T508] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.706566][ T508] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.706855][ T508] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.707157][ T508] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.707448][ T508] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.707733][ T508] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.708015][ T508] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.708313][ T508] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.708597][ T508] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.708888][ T508] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.709187][ T508] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.709479][ T508] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.709763][ T508] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.710049][ T508] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.710363][ T508] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.710647][ T508] ? 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) 
[ 42.710942][ T508] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.711241][ T508] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.711529][ T508] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.711820][ T508] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.712123][ T508] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.712409][ T508] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.712715][ T508] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.713009][ T508] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.713306][ T508] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.713670][ T508] ___sys_sendmsg (net/socket.c:2670) 
[ 42.713957][ T508] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.714251][ T508] ? __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) 
[ 42.714617][ T508] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.714904][ T508] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.715211][ T508] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.715503][ T508] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.715790][ T508] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 42.716081][ T508] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.716377][ T508] __sys_sendmsg (net/socket.c:2700) 
[ 42.716660][ T508] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.717009][ T508] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.717326][ T508] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.717615][ T508] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.717902][ T508] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.718265][  T508] RIP: 0033:0x7f1df271b1e7
[ 42.718562][ T508] 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)
[   42.719564][  T508] RSP: 002b:00007ffeda90f4c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.719990][  T508] RAX: ffffffffffffffda RBX: 00007ffeda90fbf0 RCX: 00007f1df271b1e7
[   42.720424][  T508] RDX: 0000000000000000 RSI: 00007ffeda90f530 RDI: 0000000000000005
[   42.720842][  T508] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   42.721278][  T508] R10: 00007f1df2618ee8 R11: 0000000000000246 R12: 0000000000000004
[   42.721696][  T508] R13: 00000000686e141e R14: 0000000000499600 R15: 0000000000000000
| [   42.843022][  T509] ------------[ cut here ]------------
| [ 42.843786][ T509] WARNING: CPU: 0 PID: 509 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) 
| [   42.844350][  T509] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q dummy vrf veth
| [   42.845528][  T509] Tainted: [W]=WARN
[   42.845754][  T509] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.846112][ T509] 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) 
[ 42.846399][ T509] 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
[   42.847417][  T509] RSP: 0018:ffffc90000777140 EFLAGS: 00010246
[   42.847775][  T509] RAX: 0000000000000000 RBX: ffff888006991000 RCX: 0000000000000001
[   42.848207][  T509] RDX: 0000000000000000 RSI: ffffffffa549b941 RDI: ffffffffa4c555e0
[   42.848619][  T509] RBP: ffffc90000777230 R08: ffff888009482000 R09: 0000000000000000
[   42.849026][  T509] R10: ffffc900007775c8 R11: ffffffffa6250668 R12: 1ffff920000eee2c
[   42.849451][  T509] R13: 00000000000007d0 R14: ffffc90000777880 R15: ffff88800b51fbe0
[   42.849867][  T509] FS:  00007eff9f181800(0000) GS:ffff88808ecb7000(0000) knlGS:0000000000000000
[   42.850360][  T509] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.850716][  T509] CR2: 00000000004e5ab8 CR3: 00000000096e9004 CR4: 0000000000772ef0
[   42.851154][  T509] PKRU: 55555554
[   42.851373][  T509] Call Trace:
[   42.851582][  T509]  <TASK>
[ 42.851722][ T509] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.852011][ T509] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.852322][ T509] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.852615][ T509] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 42.852889][ T509] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 42.853211][ T509] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 42.853499][ T509] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 42.853779][ T509] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.854158][ T509] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.854449][ T509] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.854719][ T509] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.854995][ T509] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.855283][ T509] ? __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) 
[ 42.855580][ T509] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.855935][ T509] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.856223][ T509] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.856507][ T509] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.856787][ T509] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.857084][ T509] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.857360][ T509] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.857629][ T509] ? __create_object (mm/kmemleak.c:771) 
[ 42.857910][ T509] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.858193][ T509] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.858466][ T509] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.858802][ T509] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.859093][ T509] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.859390][ T509] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.859662][ T509] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.859947][ T509] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.860233][ T509] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.860504][ T509] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.860776][ T509] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.861048][ T509] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.861346][ T509] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.861623][ T509] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.861898][ T509] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.862184][ T509] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.862470][ T509] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.862770][ T509] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.863043][ T509] ? 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) 
[ 42.863371][ T509] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.863657][ T509] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.863941][ T509] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.864245][ T509] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.864549][ T509] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.864833][ T509] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.865125][ T509] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.865415][ T509] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.865687][ T509] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.866039][ T509] ___sys_sendmsg (net/socket.c:2670) 
[ 42.866328][ T509] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.866618][ T509] ? __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) 
[ 42.866973][ T509] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.867262][ T509] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.867552][ T509] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.867832][ T509] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.868137][ T509] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 42.868429][ T509] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.868713][ T509] __sys_sendmsg (net/socket.c:2700) 
[ 42.868984][ T509] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.869336][ T509] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.869623][ T509] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.869899][ T509] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.870185][ T509] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.870531][  T509] RIP: 0033:0x7eff9f34e1e7
[ 42.870815][ T509] 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)
[   42.871815][  T509] RSP: 002b:00007ffd3e957298 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.872238][  T509] RAX: ffffffffffffffda RBX: 00007ffd3e9579c0 RCX: 00007eff9f34e1e7
[   42.872654][  T509] RDX: 0000000000000000 RSI: 00007ffd3e957300 RDI: 0000000000000005
[   42.873062][  T509] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   42.873497][  T509] R10: 00007eff9f24bee8 R11: 0000000000000246 R12: 0000000000000004
[   42.873922][  T509] R13: 00000000686e141e R14: 0000000000499600 R15: 0000000000000000
| [   42.976495][  T510] ------------[ cut here ]------------
| [ 42.976847][ T510] WARNING: CPU: 2 PID: 510 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) 
| [   42.977423][  T510] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q dummy vrf veth
| [   42.978588][  T510] Tainted: [W]=WARN
[   42.978815][  T510] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.979191][ T510] 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) 
[ 42.979491][ T510] 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
[   42.980530][  T510] RSP: 0018:ffffc90000567140 EFLAGS: 00010246
[   42.980898][  T510] RAX: 0000000000000000 RBX: ffff888002079000 RCX: 0000000000000001
[   42.981332][  T510] RDX: 0000000000000000 RSI: ffffffffa549b941 RDI: ffffffffa4c555e0
[   42.981752][  T510] RBP: ffffc90000567230 R08: ffff888006195000 R09: 0000000000000000
[   42.982181][  T510] R10: ffffc900005675c8 R11: ffffffffa6250668 R12: 1ffff920000ace2c
[   42.982609][  T510] R13: 00000000000007d0 R14: ffffc90000567880 R15: ffff88800b51d560
[   42.983030][  T510] FS:  00007f498c541800(0000) GS:ffff88808edb7000(0000) knlGS:0000000000000000
[   42.983532][  T510] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.983887][  T510] CR2: 00000000004e59c0 CR3: 000000000bb92001 CR4: 0000000000772ef0
[   42.984324][  T510] PKRU: 55555554
[   42.984552][  T510] Call Trace:
[   42.984770][  T510]  <TASK>
[ 42.984923][ T510] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.985366][ T510] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.985809][ T510] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.986232][ T510] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 42.986517][ T510] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 42.986805][ T510] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 42.987110][ T510] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 42.987406][ T510] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.987763][ T510] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.988048][ T510] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.988345][ T510] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.988634][ T510] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.988934][ T510] ? __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) 
[ 42.989234][ T510] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.989585][ T510] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.989873][ T510] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.990175][ T510] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.990461][ T510] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.990747][ T510] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.991032][ T510] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.991329][ T510] ? __create_object (mm/kmemleak.c:771) 
[ 42.991618][ T510] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.991906][ T510] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.992203][ T510] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.992555][ T510] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.992847][ T510] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.993147][ T510] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.993436][ T510] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.993728][ T510] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.994012][ T510] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.994306][ T510] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.994605][ T510] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.994890][ T510] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.995184][ T510] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.995473][ T510] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.995769][ T510] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.996054][ T510] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.996353][ T510] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.996652][ T510] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.996935][ T510] ? 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) 
[ 42.997236][ T510] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.997525][ T510] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.997817][ T510] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.998116][ T510] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.998407][ T510] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.998695][ T510] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.998989][ T510] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.999290][ T510] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.999575][ T510] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.999940][ T510] ___sys_sendmsg (net/socket.c:2670) 
[ 43.000235][ T510] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 43.000520][ T510] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 43.000871][ T510] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 43.001168][ T510] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.001462][ T510] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.001753][ T510] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.002044][ T510] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 43.002342][ T510] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 43.002635][ T510] __sys_sendmsg (net/socket.c:2700) 
[ 43.002918][ T510] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 43.003282][ T510] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 43.003580][ T510] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.003865][ T510] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 43.004164][ T510] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   43.004529][  T510] RIP: 0033:0x7f498c70e1e7
[ 43.004825][ T510] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   43.005840][  T510] RSP: 002b:00007ffdacbaf2a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   43.006286][  T510] RAX: ffffffffffffffda RBX: 00007ffdacbaf9d0 RCX: 00007f498c70e1e7
[   43.006710][  T510] RDX: 0000000000000000 RSI: 00007ffdacbaf310 RDI: 0000000000000005
[   43.007141][  T510] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   43.007564][  T510] R10: 00007f498c60bee8 R11: 0000000000000246 R12: 0000000000000004


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