======================================
| [   35.749192][  T442] GACT probability NOT on
| [   41.729215][  T499] ------------[ cut here ]------------
| [ 41.729823][ T499] WARNING: CPU: 0 PID: 499 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) 
| [   41.730409][  T499] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q dummy vrf veth
[   41.731611][  T499] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.731963][ T499] 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) 
[ 41.732261][ T499] 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
[   41.733285][  T499] RSP: 0018:ffffc900006a7140 EFLAGS: 00010246
[   41.733656][  T499] RAX: 0000000000000000 RBX: ffff888005f8c000 RCX: 0000000000000001
[   41.734078][  T499] RDX: 0000000000000000 RSI: ffffffffaa29b941 RDI: ffffffffa9a555e0
[   41.734514][  T499] RBP: ffffc900006a7230 R08: ffff88800e8e6800 R09: 0000000000000000
[   41.734966][  T499] R10: ffffc900006a75c8 R11: ffffffffab050668 R12: 1ffff920000d4e2c
[   41.735399][  T499] R13: 00000000000007d0 R14: ffffc900006a7880 R15: ffff88800b62d560
[   41.735823][  T499] FS:  00007f5c5482d800(0000) GS:ffff888089eb7000(0000) knlGS:0000000000000000
[   41.736326][  T499] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.736686][  T499] CR2: 00000000004e5aa0 CR3: 00000000098d1005 CR4: 0000000000772ef0
[   41.737108][  T499] PKRU: 55555554
[   41.737334][  T499] Call Trace:
[   41.737766][  T499]  <TASK>
[ 41.737912][ T499] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.738201][ T499] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.738490][ T499] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.738785][ T499] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.739102][ T499] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.739399][ T499] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.739684][ T499] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.739983][ T499] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.740354][ T499] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.740644][ T499] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.740952][ T499] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.741235][ T499] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.741534][ T499] ? __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) 
[ 41.741818][ T499] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.742167][ T499] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.742460][ T499] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.742746][ T499] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.743026][ T499] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.743316][ T499] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.743598][ T499] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.743878][ T499] ? __create_object (mm/kmemleak.c:771) 
[ 41.744158][ T499] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.744452][ T499] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.744732][ T499] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.745114][ T499] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.745418][ T499] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.745704][ T499] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.745984][ T499] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.746270][ T499] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.746561][ T499] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.746839][ T499] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.747124][ T499] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.747419][ T499] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.747701][ T499] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.747981][ T499] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.748265][ T499] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.748554][ T499] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.748866][ T499] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.749158][ T499] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.749464][ T499] ? 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) 
[ 41.749748][ T499] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 41.750046][ T499] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.750337][ T499] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.750631][ T499] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.750913][ T499] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.751192][ T499] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.751498][ T499] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.751799][ T499] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.752080][ T499] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.752451][ T499] ___sys_sendmsg (net/socket.c:2670) 
[ 41.752747][ T499] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 41.753059][ T499] ? __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) 
[ 41.753424][ T499] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.753717][ T499] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.754001][ T499] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.754285][ T499] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.754581][ T499] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 41.754864][ T499] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.755152][ T499] __sys_sendmsg (net/socket.c:2700) 
[ 41.755442][ T499] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 41.755797][ T499] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.756089][ T499] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.756382][ T499] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.756669][ T499] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.757051][  T499] RIP: 0033:0x7f5c549fa1e7
[ 41.757361][ T499] 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)
[   41.758381][  T499] RSP: 002b:00007ffe24455698 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.758810][  T499] RAX: ffffffffffffffda RBX: 00007ffe24455dc0 RCX: 00007f5c549fa1e7
[   41.759231][  T499] RDX: 0000000000000000 RSI: 00007ffe24455700 RDI: 0000000000000005
[   41.759664][  T499] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   41.760106][  T499] R10: 00007f5c548f7ee8 R11: 0000000000000246 R12: 0000000000000004
[   41.760558][  T499] R13: 00000000686e490d R14: 0000000000499600 R15: 0000000000000000
| [   41.902244][  T500] ------------[ cut here ]------------
| [ 41.902578][ T500] WARNING: CPU: 0 PID: 500 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) 
| [   41.903135][  T500] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q dummy vrf veth
| [   41.904327][  T500] Tainted: [W]=WARN
[   41.904552][  T500] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.904923][ T500] 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) 
[ 41.905224][ T500] 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
[   41.906274][  T500] RSP: 0018:ffffc900006b7140 EFLAGS: 00010246
[   41.906641][  T500] RAX: 0000000000000000 RBX: ffff888008861000 RCX: 0000000000000001
[   41.907071][  T500] RDX: 0000000000000000 RSI: ffffffffaa29b941 RDI: ffffffffa9a555e0
[   41.907507][  T500] RBP: ffffc900006b7230 R08: ffff888009be0800 R09: 0000000000000000
[   41.907934][  T500] R10: ffffc900006b75c8 R11: ffffffffab050668 R12: 1ffff920000d6e2c
[   41.908362][  T500] R13: 00000000000007d0 R14: ffffc900006b7880 R15: ffff88800b62cae0
[   41.908780][  T500] FS:  00007f8d144c9800(0000) GS:ffff888089eb7000(0000) knlGS:0000000000000000
[   41.909273][  T500] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.909637][  T500] CR2: 00000000004e5aa8 CR3: 000000000e836001 CR4: 0000000000772ef0
[   41.910097][  T500] PKRU: 55555554
[   41.910325][  T500] Call Trace:
[   41.910536][  T500]  <TASK>
[ 41.910677][ T500] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.910963][ T500] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.911249][ T500] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.911544][ T500] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.911833][ T500] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.912113][ T500] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.912408][ T500] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.912694][ T500] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.913055][ T500] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.913347][ T500] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.913628][ T500] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.913936][ T500] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.914221][ T500] ? __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) 
[ 41.914545][ T500] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.914893][ T500] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.915181][ T500] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.915490][ T500] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.915777][ T500] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.916060][ T500] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.916355][ T500] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.916631][ T500] ? __create_object (mm/kmemleak.c:771) 
[ 41.916911][ T500] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.917192][ T500] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.917490][ T500] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.917871][ T500] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.918159][ T500] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.918461][ T500] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.918744][ T500] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.919030][ T500] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.919329][ T500] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.919612][ T500] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.919902][ T500] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.920177][ T500] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.920469][ T500] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.920751][ T500] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.921036][ T500] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.921330][ T500] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.921610][ T500] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.921935][ T500] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.922213][ T500] ? 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) 
[ 41.922528][ T500] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 41.922812][ T500] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.923090][ T500] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.923389][ T500] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.923670][ T500] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.923956][ T500] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.924246][ T500] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.924540][ T500] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.924820][ T500] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.925181][ T500] ___sys_sendmsg (net/socket.c:2670) 
[ 41.925468][ T500] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 41.925748][ T500] ? __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) 
[ 41.926139][ T500] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.926440][ T500] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.926723][ T500] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.927008][ T500] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.927287][ T500] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 41.927586][ T500] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.927872][ T500] __sys_sendmsg (net/socket.c:2700) 
[ 41.928157][ T500] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 41.928518][ T500] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.928811][ T500] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.929093][ T500] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.929385][ T500] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.929730][  T500] RIP: 0033:0x7f8d146961e7
[ 41.930059][ T500] 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)
[   41.931079][  T500] RSP: 002b:00007fffcdc2cfb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.931515][  T500] RAX: ffffffffffffffda RBX: 00007fffcdc2d6e0 RCX: 00007f8d146961e7
[   41.931938][  T500] RDX: 0000000000000000 RSI: 00007fffcdc2d020 RDI: 0000000000000005
[   41.932375][  T500] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   41.932791][  T500] R10: 00007f8d14593ee8 R11: 0000000000000246 R12: 0000000000000004
[   41.933210][  T500] R13: 00000000686e490d R14: 0000000000499600 R15: 0000000000000000
| [   42.051132][  T501] ------------[ cut here ]------------
| [ 42.051505][ T501] WARNING: CPU: 1 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) 
| [   42.052100][  T501] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q dummy vrf veth
| [   42.053332][  T501] Tainted: [W]=WARN
[   42.053555][  T501] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.053915][ 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) 
[ 42.054216][ 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
[   42.055285][  T501] RSP: 0018:ffffc90000707140 EFLAGS: 00010246
[   42.055670][  T501] RAX: 0000000000000000 RBX: ffff88800ee44000 RCX: 0000000000000001
[   42.056107][  T501] RDX: 0000000000000000 RSI: ffffffffaa29b941 RDI: ffffffffa9a555e0
[   42.056696][  T501] RBP: ffffc90000707230 R08: ffff88800ab13800 R09: 0000000000000000
[   42.057140][  T501] R10: ffffc900007075c8 R11: ffffffffab050668 R12: 1ffff920000e0e2c
[   42.057711][  T501] R13: 00000000000007d0 R14: ffffc90000707880 R15: ffff88800b62c060
[   42.058152][  T501] FS:  00007fc6fe686800(0000) GS:ffff888089f37000(0000) knlGS:0000000000000000
[   42.058852][  T501] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.059228][  T501] CR2: 00000000004e73c8 CR3: 00000000099b2002 CR4: 0000000000772ef0
[   42.059862][  T501] PKRU: 55555554
[   42.060087][  T501] Call Trace:
[   42.060319][  T501]  <TASK>
[ 42.060469][ T501] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.060771][ T501] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.061064][ T501] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.061370][ T501] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 42.061673][ T501] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 42.061970][ T501] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 42.062265][ T501] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 42.062578][ T501] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.062953][ T501] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.063246][ T501] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.063573][ T501] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.063873][ T501] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.064172][ 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) 
[ 42.064480][ T501] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.064847][ T501] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.065145][ T501] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.065448][ T501] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.065748][ T501] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.066046][ T501] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.066348][ T501] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.066641][ T501] ? __create_object (mm/kmemleak.c:771) 
[ 42.066940][ T501] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.067234][ T501] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.067550][ T501] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.067925][ T501] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.068231][ T501] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.068545][ T501] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.068839][ T501] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.069140][ T501] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.069461][ T501] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.069755][ T501] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.070066][ T501] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.070369][ T501] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.070672][ T501] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.070969][ T501] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.071270][ T501] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.071588][ T501] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.071891][ T501] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.072202][ T501] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.072510][ 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) 
[ 42.072811][ T501] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.073107][ T501] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.073413][ T501] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.073713][ T501] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.074021][ T501] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.074329][ T501] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.074628][ T501] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.074932][ T501] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.075226][ T501] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.075623][ T501] ___sys_sendmsg (net/socket.c:2670) 
[ 42.075912][ T501] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.076207][ 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) 
[ 42.076587][ T501] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.076879][ T501] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.077182][ T501] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.077488][ T501] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.077777][ 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) 
[ 42.078068][ T501] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.078375][ T501] __sys_sendmsg (net/socket.c:2700) 
[ 42.078669][ T501] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.079032][ T501] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.079360][ T501] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.079659][ T501] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.079963][ T501] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.080337][  T501] RIP: 0033:0x7fc6fe8531e7
[ 42.080642][ 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)
[   42.081703][  T501] RSP: 002b:00007ffd507041c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.082155][  T501] RAX: ffffffffffffffda RBX: 00007ffd507048f0 RCX: 00007fc6fe8531e7
[   42.082603][  T501] RDX: 0000000000000000 RSI: 00007ffd50704230 RDI: 0000000000000005
[   42.083039][  T501] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   42.083507][  T501] R10: 00007fc6fe750ee8 R11: 0000000000000246 R12: 0000000000000004
[   42.083948][  T501] R13: 00000000686e490d R14: 0000000000499600 R15: 0000000000000000
| [   42.209091][  T502] ------------[ cut here ]------------
| [ 42.209577][ T502] WARNING: CPU: 2 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) 
| [   42.210206][  T502] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q dummy vrf veth
| [   42.211536][  T502] Tainted: [W]=WARN
[   42.211780][  T502] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.212168][ 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) 
[ 42.212505][ 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
[   42.213591][  T502] RSP: 0018:ffffc90000717140 EFLAGS: 00010246
[   42.213983][  T502] RAX: 0000000000000000 RBX: ffff8880027e4000 RCX: 0000000000000001
[   42.214460][  T502] RDX: 0000000000000000 RSI: ffffffffaa29b941 RDI: ffffffffa9a555e0
[   42.214919][  T502] RBP: ffffc90000717230 R08: ffff8880029e2000 R09: 0000000000000000
[   42.215403][  T502] R10: ffffc900007175c8 R11: ffffffffab050668 R12: 1ffff920000e2e2c
[   42.215864][  T502] R13: 00000000000007d0 R14: ffffc90000717880 R15: ffff88800ee34760
[   42.216338][  T502] FS:  00007fa96cb92800(0000) GS:ffff888089fb7000(0000) knlGS:0000000000000000
[   42.216875][  T502] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.217272][  T502] CR2: 00000000004e5ab0 CR3: 000000000dd7c001 CR4: 0000000000772ef0
[   42.217746][  T502] PKRU: 55555554
[   42.217991][  T502] Call Trace:
[   42.218231][  T502]  <TASK>
[ 42.218415][ T502] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.218742][ T502] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.219052][ T502] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.219392][ T502] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 42.219708][ T502] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 42.220039][ T502] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 42.220368][ T502] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 42.220689][ T502] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.221080][ T502] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.221424][ T502] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.221758][ T502] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.222072][ T502] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.222399][ 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) 
[ 42.222713][ T502] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.223092][ T502] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.223437][ T502] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.223751][ T502] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.224070][ T502] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.224399][ T502] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.224715][ T502] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.225023][ T502] ? __create_object (mm/kmemleak.c:771) 
[ 42.225353][ T502] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.225666][ T502] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.225980][ T502] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.226389][ T502] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.226708][ T502] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.227021][ T502] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.227347][ T502] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.227664][ T502] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.227977][ T502] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.228290][ T502] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.228617][ T502] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.228934][ T502] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.229248][ T502] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.229572][ T502] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.229905][ T502] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.230216][ T502] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.230543][ T502] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.230868][ T502] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.231185][ 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) 
[ 42.231519][ T502] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.231838][ T502] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.232146][ T502] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.232478][ T502] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.232792][ T502] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.233102][ T502] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.233436][ T502] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.233764][ T502] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.234075][ T502] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.234487][ T502] ___sys_sendmsg (net/socket.c:2670) 
[ 42.234797][ T502] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.235106][ 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) 
[ 42.235511][ T502] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.235834][ T502] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.236149][ T502] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.236481][ T502] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.236791][ 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) 
[ 42.237101][ T502] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.237432][ T502] __sys_sendmsg (net/socket.c:2700) 
[ 42.237739][ T502] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.238123][ T502] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.238470][ T502] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.238786][ T502] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.239097][ T502] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.239492][  T502] RIP: 0033:0x7fa96cd5f1e7
[ 42.239825][ 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)
[   42.240921][  T502] RSP: 002b:00007fff6bae5fe8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.241393][  T502] RAX: ffffffffffffffda RBX: 00007fff6bae6710 RCX: 00007fa96cd5f1e7
[   42.241853][  T502] RDX: 0000000000000000 RSI: 00007fff6bae6050 RDI: 0000000000000005
[   42.242319][  T502] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   42.242779][  T502] R10: 00007fa96cc5cee8 R11: 0000000000000246 R12: 0000000000000004
[   42.243234][  T502] R13: 00000000686e490d R14: 0000000000499600 R15: 0000000000000000
| [   42.356640][  T503] ------------[ cut here ]------------
| [ 42.356980][ T503] WARNING: CPU: 0 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) 
| [   42.357597][  T503] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q dummy vrf veth
| [   42.358838][  T503] Tainted: [W]=WARN
[   42.359063][  T503] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.359443][ 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) 
[ 42.359746][ 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
[   42.360806][  T503] RSP: 0018:ffffc90000617140 EFLAGS: 00010246
[   42.361165][  T503] RAX: 0000000000000000 RBX: ffff888007801000 RCX: 0000000000000001
[   42.361597][  T503] RDX: 0000000000000000 RSI: ffffffffaa29b941 RDI: ffffffffa9a555e0
[   42.362017][  T503] RBP: ffffc90000617230 R08: ffff88800b913800 R09: 0000000000000000
[   42.362471][  T503] R10: ffffc900006175c8 R11: ffffffffab050668 R12: 1ffff920000c2e2c
[   42.362903][  T503] R13: 00000000000007d0 R14: ffffc90000617880 R15: ffff88800ee37be0
[   42.363474][  T503] FS:  00007f1372bba800(0000) GS:ffff888089eb7000(0000) knlGS:0000000000000000
[   42.363963][  T503] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.364504][  T503] CR2: 00000000004e55b8 CR3: 000000000887f002 CR4: 0000000000772ef0
[   42.364951][  T503] PKRU: 55555554
[   42.365164][  T503] Call Trace:
[   42.365511][  T503]  <TASK>
[ 42.365657][ T503] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.365943][ T503] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.366222][ T503] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.366534][ T503] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 42.366821][ T503] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 42.367109][ T503] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 42.367401][ T503] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 42.367685][ T503] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.368040][ T503] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.368328][ T503] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.368606][ T503] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.368887][ T503] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.369173][ 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) 
[ 42.369461][ T503] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.369814][ T503] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.370100][ T503] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.370404][ T503] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.370683][ T503] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.370963][ T503] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.371250][ T503] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.371536][ T503] ? __create_object (mm/kmemleak.c:771) 
[ 42.371821][ T503] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.372100][ T503] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.372395][ T503] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.372742][ T503] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.373026][ T503] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.373320][ T503] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.373602][ T503] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.373884][ T503] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.374164][ T503] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.374462][ T503] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.374747][ T503] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.375024][ T503] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.375328][ T503] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.375617][ T503] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.375900][ T503] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.376183][ T503] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.376480][ T503] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.376768][ T503] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.377048][ 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) 
[ 42.377336][ T503] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.377624][ T503] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.377903][ T503] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.378190][ T503] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.378495][ T503] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.378778][ T503] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.379066][ T503] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.379365][ T503] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.379646][ T503] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.380023][ T503] ___sys_sendmsg (net/socket.c:2670) 
[ 42.380310][ T503] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.380589][ 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) 
[ 42.380940][ T503] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.381264][ T503] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.381574][ T503] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.381859][ T503] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.382144][ 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) 
[ 42.382446][ T503] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.382737][ T503] __sys_sendmsg (net/socket.c:2700) 
[ 42.383018][ T503] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.383373][ T503] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.383667][ T503] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.383956][ T503] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.384242][ T503] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.384599][  T503] RIP: 0033:0x7f1372d871e7
[ 42.384889][ 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)
[   42.385891][  T503] RSP: 002b:00007ffe51fac338 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.386345][  T503] RAX: ffffffffffffffda RBX: 00007ffe51faca60 RCX: 00007f1372d871e7
[   42.386763][  T503] RDX: 0000000000000000 RSI: 00007ffe51fac3a0 RDI: 0000000000000005
[   42.387183][  T503] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   42.387610][  T503] R10: 00007f1372c84ee8 R11: 0000000000000246 R12: 0000000000000004
[   42.388031][  T503] R13: 00000000686e490e R14: 0000000000499600 R15: 0000000000000000
| [   42.495900][  T504] ------------[ cut here ]------------
| [ 42.496211][ T504] WARNING: CPU: 0 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) 
| [   42.496774][  T504] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q dummy vrf veth
| [   42.497933][  T504] Tainted: [W]=WARN
[   42.498145][  T504] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.499407][ 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) 
[ 42.499716][ 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
[   42.500746][  T504] RSP: 0018:ffffc90000717140 EFLAGS: 00010246
[   42.501100][  T504] RAX: 0000000000000000 RBX: ffff888004fa1000 RCX: 0000000000000001
[   42.501528][  T504] RDX: 0000000000000000 RSI: ffffffffaa29b941 RDI: ffffffffa9a555e0
[   42.501949][  T504] RBP: ffffc90000717230 R08: ffff88800b578800 R09: 0000000000000000
[   42.502382][  T504] R10: ffffc900007175c8 R11: ffffffffab050668 R12: 1ffff920000e2e2c
[   42.502799][  T504] R13: 00000000000007d0 R14: ffffc90000717880 R15: ffff88800ee37160
[   42.503213][  T504] FS:  00007fd8097e4800(0000) GS:ffff888089eb7000(0000) knlGS:0000000000000000
[   42.503706][  T504] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.504059][  T504] CR2: 00000000004e5ac8 CR3: 000000000aa99003 CR4: 0000000000772ef0
[   42.504487][  T504] PKRU: 55555554
[   42.504698][  T504] Call Trace:
[   42.504922][  T504]  <TASK>
[ 42.505064][ T504] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.505362][ T504] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.505640][ T504] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.505927][ T504] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 42.506205][ T504] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 42.506496][ T504] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 42.506789][ T504] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 42.507076][ T504] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.507442][ T504] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.507726][ T504] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.508003][ T504] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.508284][ T504] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.508673][ 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) 
[ 42.508954][ T504] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.509312][ T504] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.509595][ T504] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.509887][ T504] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.510173][ T504] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.510462][ T504] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.510741][ T504] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.511017][ T504] ? __create_object (mm/kmemleak.c:771) 
[ 42.511308][ T504] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.511587][ T504] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.511864][ T504] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.512219][ T504] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.512515][ T504] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.512801][ T504] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.513081][ T504] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.513375][ T504] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.513655][ T504] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.513930][ T504] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.514213][ T504] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.514504][ T504] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.514786][ T504] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.515068][ T504] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.515359][ T504] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.515638][ T504] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.515915][ T504] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.516205][ T504] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.516493][ 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) 
[ 42.516772][ T504] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.517051][ T504] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.517336][ T504] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.517626][ T504] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.517913][ T504] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.518192][ T504] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.518497][ T504] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.518785][ T504] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.519062][ T504] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.519430][ T504] ___sys_sendmsg (net/socket.c:2670) 
[ 42.519707][ T504] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.519995][ 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) 
[ 42.520352][ T504] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.520635][ T504] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.520916][ T504] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.521200][ T504] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.521483][ 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) 
[ 42.521761][ T504] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.522045][ T504] __sys_sendmsg (net/socket.c:2700) 
[ 42.522326][ T504] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.522675][ T504] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.522971][ T504] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.523249][ T504] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.523540][ T504] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.523886][  T504] RIP: 0033:0x7fd8099b11e7
[ 42.524173][ 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)
[   42.525201][  T504] RSP: 002b:00007ffefd329978 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.525650][  T504] RAX: ffffffffffffffda RBX: 00007ffefd32a0a0 RCX: 00007fd8099b11e7
[   42.526064][  T504] RDX: 0000000000000000 RSI: 00007ffefd3299e0 RDI: 0000000000000005
[   42.526487][  T504] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   42.526910][  T504] R10: 00007fd8098aeee8 R11: 0000000000000246 R12: 0000000000000004
[   42.527332][  T504] R13: 00000000686e490e R14: 0000000000499600 R15: 0000000000000000
| [   42.660505][  T505] ------------[ cut here ]------------
| [ 42.660903][ T505] WARNING: CPU: 2 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) 
| [   42.661543][  T505] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q dummy vrf veth
| [   42.662955][  T505] Tainted: [W]=WARN
[   42.663196][  T505] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.664959][ 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) 
[ 42.665285][ 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
[   42.666516][  T505] RSP: 0018:ffffc90000537140 EFLAGS: 00010246
[   42.666891][  T505] RAX: 0000000000000000 RBX: ffff88800b689000 RCX: 0000000000000001
[   42.667339][  T505] RDX: 0000000000000000 RSI: ffffffffaa29b941 RDI: ffffffffa9a555e0
[   42.667776][  T505] RBP: ffffc90000537230 R08: ffff88800ee95000 R09: 0000000000000000
[   42.668221][  T505] R10: ffffc900005375c8 R11: ffffffffab050668 R12: 1ffff920000a6e2c
[   42.668674][  T505] R13: 00000000000007d0 R14: ffffc90000537880 R15: ffff88800ee366e0
[   42.669113][  T505] FS:  00007f8f119dc800(0000) GS:ffff888089fb7000(0000) knlGS:0000000000000000
[   42.669639][  T505] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.670039][  T505] CR2: 00000000004e5ac0 CR3: 0000000002195005 CR4: 0000000000772ef0
[   42.670492][  T505] PKRU: 55555554
[   42.670733][  T505] Call Trace:
[   42.670965][  T505]  <TASK>
[ 42.671127][ T505] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.671455][ T505] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.671755][ T505] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.672060][ T505] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 42.672386][ T505] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 42.672690][ T505] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 42.672995][ T505] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 42.673317][ T505] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.673695][ T505] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.673997][ T505] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.674324][ T505] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.674633][ T505] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.674935][ 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) 
[ 42.675237][ T505] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.675620][ T505] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.675924][ T505] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.676220][ T505] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.676543][ T505] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.676849][ T505] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.677147][ T505] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.677454][ T505] ? __create_object (mm/kmemleak.c:771) 
[ 42.677757][ T505] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.678055][ T505] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.678368][ T505] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.678735][ T505] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.679045][ T505] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.679361][ T505] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.679662][ T505] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.679980][ T505] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.680281][ T505] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.680596][ T505] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.680900][ T505] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.681197][ T505] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.681521][ T505] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.681827][ T505] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.682129][ T505] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.682459][ T505] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.682760][ T505] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.683073][ T505] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.683382][ 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) 
[ 42.683688][ T505] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.683987][ T505] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.684285][ T505] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.684602][ T505] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.684903][ T505] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.685202][ T505] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.685521][ T505] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.685833][ T505] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.686133][ T505] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.686525][ T505] ___sys_sendmsg (net/socket.c:2670) 
[ 42.686825][ T505] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.687123][ 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) 
[ 42.687515][ T505] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.687817][ T505] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.688125][ T505] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.688444][ T505] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.688745][ 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) 
[ 42.689041][ T505] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.689359][ T505] __sys_sendmsg (net/socket.c:2700) 
[ 42.689661][ T505] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.690040][ T505] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.690377][ T505] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.690682][ T505] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.690981][ T505] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.691357][  T505] RIP: 0033:0x7f8f11ba91e7
[ 42.691672][ 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)
[   42.692727][  T505] RSP: 002b:00007fff76ad6f18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.693185][  T505] RAX: ffffffffffffffda RBX: 00007fff76ad7640 RCX: 00007f8f11ba91e7
[   42.693643][  T505] RDX: 0000000000000000 RSI: 00007fff76ad6f80 RDI: 0000000000000005
[   42.694084][  T505] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   42.694543][  T505] R10: 00007f8f11aa6ee8 R11: 0000000000000246 R12: 0000000000000004
[   42.694978][  T505] R13: 00000000686e490e R14: 0000000000499600 R15: 0000000000000000
| [   42.815499][  T506] ------------[ cut here ]------------
| [ 42.815832][ T506] WARNING: CPU: 0 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) 
| [   42.816898][  T506] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q dummy vrf veth
| [   42.818112][  T506] Tainted: [W]=WARN
[   42.818348][  T506] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.818707][ 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) 
[ 42.819005][ 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
[   42.820057][  T506] RSP: 0018:ffffc90000727140 EFLAGS: 00010246
[   42.820435][  T506] RAX: 0000000000000000 RBX: ffff88800ee41000 RCX: 0000000000000001
[   42.820867][  T506] RDX: 0000000000000000 RSI: ffffffffaa29b941 RDI: ffffffffa9a555e0
[   42.821310][  T506] RBP: ffffc90000727230 R08: ffff888009300800 R09: 0000000000000000
[   42.821746][  T506] R10: ffffc900007275c8 R11: ffffffffab050668 R12: 1ffff920000e4e2c
[   42.822182][  T506] R13: 00000000000007d0 R14: ffffc90000727880 R15: ffff88800ee35c60
[   42.822624][  T506] FS:  00007f39a35ac800(0000) GS:ffff888089eb7000(0000) knlGS:0000000000000000
[   42.823142][  T506] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.823518][  T506] CR2: 00000000004e73f0 CR3: 0000000009273006 CR4: 0000000000772ef0
[   42.823957][  T506] PKRU: 55555554
[   42.824172][  T506] Call Trace:
[   42.824397][  T506]  <TASK>
[ 42.824546][ T506] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.824843][ T506] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.825130][ T506] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.825433][ T506] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 42.825721][ T506] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 42.826020][ T506] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 42.826324][ T506] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 42.826622][ T506] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.826991][ T506] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.827281][ T506] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.827579][ T506] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.827876][ T506] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.828168][ 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) 
[ 42.828467][ T506] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.828824][ T506] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.829114][ T506] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.829409][ T506] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.829697][ T506] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.830001][ T506] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.830305][ T506] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.830592][ T506] ? __create_object (mm/kmemleak.c:771) 
[ 42.830883][ T506] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.831170][ T506] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.831467][ T506] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.831826][ T506] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.832120][ T506] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.832430][ T506] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.832722][ T506] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.833015][ T506] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.833312][ T506] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.833597][ T506] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.833885][ T506] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.834171][ T506] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.834471][ T506] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.834768][ T506] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.835061][ T506] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.835361][ T506] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.835654][ T506] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.835952][ T506] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.836241][ 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) 
[ 42.836542][ T506] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.836839][ T506] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.837155][ T506] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.837657][ T506] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.838123][ T506] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.838645][ T506] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.839134][ T506] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.839639][ T506] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.840154][ T506] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.840802][ T506] ___sys_sendmsg (net/socket.c:2670) 
[ 42.841321][ T506] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.841813][ 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) 
[ 42.842418][ T506] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.842899][ T506] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.843420][ T506] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.843938][ T506] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.844446][ 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) 
[ 42.844947][ T506] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.845486][ T506] __sys_sendmsg (net/socket.c:2700) 
[ 42.845988][ T506] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.846632][ T506] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.847171][ T506] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.847700][ T506] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.848224][ T506] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.848866][  T506] RIP: 0033:0x7f39a37791e7
[ 42.849404][ 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)
[   42.851241][  T506] RSP: 002b:00007ffee6a3f048 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.852002][  T506] RAX: ffffffffffffffda RBX: 00007ffee6a3f770 RCX: 00007f39a37791e7
[   42.852766][  T506] RDX: 0000000000000000 RSI: 00007ffee6a3f0b0 RDI: 0000000000000005
[   42.853530][  T506] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   42.854270][  T506] R10: 00007f39a3676ee8 R11: 0000000000000246 R12: 0000000000000004
[   42.855056][  T506] R13: 00000000686e490e R14: 0000000000499600 R15: 0000000000000000
| [   42.977288][  T507] ------------[ cut here ]------------
| [ 42.977690][ T507] WARNING: CPU: 2 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) 
| [   42.978268][  T507] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q dummy vrf veth
| [   42.980830][  T507] Tainted: [W]=WARN
[   42.981078][  T507] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.981470][ 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) 
[ 42.981782][ 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
[   42.982815][  T507] RSP: 0018:ffffc90000727140 EFLAGS: 00010246
[   42.983191][  T507] RAX: 0000000000000000 RBX: ffff888004ea9000 RCX: 0000000000000001
[   42.983637][  T507] RDX: 0000000000000000 RSI: ffffffffaa29b941 RDI: ffffffffa9a555e0
[   42.984072][  T507] RBP: ffffc90000727230 R08: ffff88800aaf5000 R09: 0000000000000000
[   42.984524][  T507] R10: ffffc900007275c8 R11: ffffffffab050668 R12: 1ffff920000e4e2c
[   42.984968][  T507] R13: 00000000000007d0 R14: ffffc90000727880 R15: ffff88800ee351e0
[   42.985411][  T507] FS:  00007fa06dbec800(0000) GS:ffff888089fb7000(0000) knlGS:0000000000000000
[   42.985917][  T507] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.986287][  T507] CR2: 00000000004e5ab8 CR3: 00000000093f2002 CR4: 0000000000772ef0
[   42.986745][  T507] PKRU: 55555554
[   42.986972][  T507] Call Trace:
[   42.987197][  T507]  <TASK>
[ 42.987367][ T507] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.987668][ T507] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.987963][ T507] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.988263][ T507] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 42.988570][ T507] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 42.988876][ T507] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 42.989178][ T507] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 42.989494][ T507] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.989879][ T507] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.990179][ T507] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.990484][ T507] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.990790][ T507] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.991091][ 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) 
[ 42.991418][ T507] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.991783][ T507] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.992084][ T507] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.992390][ T507] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.992688][ T507] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.992986][ T507] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.993303][ T507] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.993597][ T507] ? __create_object (mm/kmemleak.c:771) 
[ 42.993898][ T507] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.994195][ T507] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.994508][ T507] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.994873][ T507] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.995175][ T507] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.995496][ T507] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.995793][ T507] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.996094][ T507] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.996402][ T507] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.996697][ T507] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.996997][ T507] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.997305][ T507] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.997603][ T507] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.997911][ T507] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.998211][ T507] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.998522][ T507] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.998816][ T507] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.999122][ T507] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.999424][ 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) 
[ 42.999723][ T507] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 43.000050][ T507] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 43.000357][ T507] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.000655][ T507] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 43.000955][ T507] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 43.001250][ T507] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 43.001568][ T507] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 43.001870][ T507] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 43.002176][ T507] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 43.002563][ T507] ___sys_sendmsg (net/socket.c:2670) 
[ 43.002859][ T507] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 43.003154][ 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) 
[ 43.003531][ T507] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 43.003831][ T507] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.004131][ T507] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.004450][ T507] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.004749][ 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) 
[ 43.005045][ T507] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 43.005356][ T507] __sys_sendmsg (net/socket.c:2700) 
[ 43.005647][ T507] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 43.006010][ T507] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 43.006329][ T507] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.006630][ T507] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 43.006935][ T507] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   43.007307][  T507] RIP: 0033:0x7fa06ddb91e7
[ 43.007615][ 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)
[   43.008638][  T507] RSP: 002b:00007ffe25598918 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   43.009083][  T507] RAX: ffffffffffffffda RBX: 00007ffe25599040 RCX: 00007fa06ddb91e7
[   43.009532][  T507] RDX: 0000000000000000 RSI: 00007ffe25598980 RDI: 0000000000000005
[   43.009975][  T507] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   43.010424][  T507] R10: 00007fa06dcb6ee8 R11: 0000000000000246 R12: 0000000000000004
[   43.010864][  T507] R13: 00000000686e490e R14: 0000000000499600 R15: 0000000000000000
| [   43.129106][  T508] ------------[ cut here ]------------
| [ 43.129465][ T508] WARNING: CPU: 0 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) 
| [   43.130046][  T508] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q dummy vrf veth
| [   43.131251][  T508] Tainted: [W]=WARN
[   43.131479][  T508] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 43.131840][ 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) 
[ 43.132140][ 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
[   43.134379][  T508] RSP: 0018:ffffc90000747140 EFLAGS: 00010246
[   43.134753][  T508] RAX: 0000000000000000 RBX: ffff88800e8b9000 RCX: 0000000000000001
[   43.135184][  T508] RDX: 0000000000000000 RSI: ffffffffaa29b941 RDI: ffffffffa9a555e0
[   43.135751][  T508] RBP: ffffc90000747230 R08: ffff888004efd000 R09: 0000000000000000
[   43.136190][  T508] R10: ffffc900007475c8 R11: ffffffffab050668 R12: 1ffff920000e8e2c
[   43.136766][  T508] R13: 00000000000007d0 R14: ffffc90000747880 R15: ffff88800ead34e0
[   43.137200][  T508] FS:  00007f56dc207800(0000) GS:ffff888089eb7000(0000) knlGS:0000000000000000
[   43.137835][  T508] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.138202][  T508] CR2: 00000000004e59c0 CR3: 00000000099b2002 CR4: 0000000000772ef0
[   43.138686][  T508] PKRU: 55555554
[   43.138901][  T508] Call Trace:
[   43.139116][  T508]  <TASK>
[ 43.139263][ T508] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.139574][ T508] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 43.139873][ T508] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 43.140164][ T508] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 43.140466][ T508] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 43.140764][ T508] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 43.141057][ T508] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 43.141365][ T508] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 43.141728][ T508] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 43.142025][ T508] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 43.142322][ T508] ? __kernel_text_address (kernel/extable.c:79) 
[ 43.142613][ T508] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.142914][ 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) 
[ 43.143202][ T508] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 43.143575][ T508] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.143868][ T508] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.144163][ T508] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 43.144464][ T508] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 43.144754][ T508] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.145052][ T508] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 43.145350][ T508] ? __create_object (mm/kmemleak.c:771) 
[ 43.145643][ T508] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 43.145932][ T508] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 43.146220][ T508] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 43.146588][ T508] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 43.146883][ T508] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 43.147177][ T508] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 43.147481][ T508] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.147773][ T508] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.148062][ T508] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 43.148359][ T508] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 43.148652][ T508] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 43.148939][ T508] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 43.149228][ T508] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 43.149536][ T508] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.149841][ T508] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 43.150134][ T508] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 43.150434][ T508] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 43.150734][ T508] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 43.151020][ 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) 
[ 43.151327][ T508] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 43.151621][ T508] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 43.151907][ T508] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.152265][ T508] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 43.152606][ T508] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 43.152891][ T508] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 43.153179][ T508] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 43.153476][ T508] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 43.153752][ T508] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 43.154117][ T508] ___sys_sendmsg (net/socket.c:2670) 
[ 43.154417][ T508] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 43.154695][ 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) 
[ 43.155045][ T508] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 43.155344][ T508] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.155634][ T508] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.155922][ T508] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.156209][ 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) 
[ 43.156503][ T508] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 43.156791][ T508] __sys_sendmsg (net/socket.c:2700) 
[ 43.157067][ T508] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 43.157427][ T508] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 43.157716][ T508] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.157998][ T508] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 43.158287][ T508] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   43.158643][  T508] RIP: 0033:0x7f56dc3d41e7
[ 43.158936][ 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)
[   43.159955][  T508] RSP: 002b:00007fff27f32b38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   43.160395][  T508] RAX: ffffffffffffffda RBX: 00007fff27f33260 RCX: 00007f56dc3d41e7
[   43.160817][  T508] RDX: 0000000000000000 RSI: 00007fff27f32ba0 RDI: 0000000000000005
[   43.161236][  T508] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   43.161661][  T508] R10: 00007f56dc2d1ee8 R11: 0000000000000246 R12: 0000000000000004


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