======================================
| [   22.183717][  T340] ip_gre: GRE over IPv4 tunneling driver
| [   22.246432][  T339] ------------[ cut here ]------------
| [ 22.247072][ T339] WARNING: CPU: 3 PID: 339 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) 
| [   22.247880][  T339] Modules linked in: ip_gre gre 8021q dummy vrf veth
[   22.249088][  T339] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 22.249678][ T339] 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) 
[ 22.250025][ T339] 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
[   22.251344][  T339] RSP: 0018:ffffc90000597000 EFLAGS: 00010246
[   22.251851][  T339] RAX: 0000000000000000 RBX: ffff88800db5c000 RCX: 0000000000000001
[   22.252311][  T339] RDX: 0000000000000000 RSI: ffffffffb049b941 RDI: ffffffffafc555e0
[   22.252781][  T339] RBP: ffffc900005970e8 R08: ffff88800db5c218 R09: 0000000000000000
[   22.253558][  T339] R10: ffffc90000597118 R11: dffffc0000000000 R12: 1ffff920000b2e04
[   22.254141][  T339] R13: 00000000000005c4 R14: ffffc90000597118 R15: ffff88800db5c218
[   22.254703][  T339] FS:  00007f8216902800(0000) GS:ffff888083e37000(0000) knlGS:0000000000000000
[   22.255262][  T339] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.255646][  T339] CR2: 00000000004e6e50 CR3: 000000000daa2006 CR4: 0000000000772ef0
[   22.256151][  T339] PKRU: 55555554
[   22.256383][  T339] Call Trace:
[   22.256719][  T339]  <TASK>
[ 22.256952][ T339] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 22.257447][ T339] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 22.257784][ T339] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.258115][ T339] netif_set_mtu (net/core/dev.c:9652) 
[ 22.258421][ T339] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 22.258782][ T339] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 22.259030][ T339] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 22.259334][ T339] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 22.259646][ T339] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 22.259988][ T339] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 22.265662][ T339] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 22.266395][ T339] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 22.266821][ T339] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 22.267241][ T339] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 22.267601][ T339] ? __dev_get_by_name (net/core/dev.c:865) 
[ 22.267945][ T339] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 22.268306][ T339] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 22.268664][ T339] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 22.269728][ T339] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 22.270054][ T339] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 22.270367][ T339] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 22.270700][ T339] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 22.271121][ T339] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 22.272484][ T339] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 22.272965][ T339] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 22.273306][ T339] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 22.273696][ T339] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 22.274038][ T339] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.274664][ T339] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 22.275042][ T339] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 22.275391][ T339] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 22.275789][ T339] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 22.279085][ T339] ? 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) 
[ 22.279481][ T339] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 22.279816][ T339] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 22.280131][ T339] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.280528][ T339] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 22.280875][ T339] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 22.281266][ T339] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 22.281679][ T339] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 22.282565][ T339] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 22.283240][ T339] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 22.283972][ T339] ___sys_sendmsg (net/socket.c:2670) 
[ 22.284365][ T339] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 22.285404][ T339] ? __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) 
[ 22.285893][ T339] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 22.286203][ T339] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.286890][ T339] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.287999][ T339] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.288311][ T339] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 22.288632][ T339] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 22.288972][ T339] __sys_sendmsg (net/socket.c:2700) 
[ 22.289501][ T339] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 22.290130][ T339] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 22.290456][ T339] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 22.290774][ T339] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 22.291096][ T339] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   22.291474][  T339] RIP: 0033:0x7f8216acf1e7
[ 22.291816][ T339] Code: Unable to access opcode bytes at 0x7f8216acf1bd.

Code starting with the faulting instruction
===========================================
[   22.292221][  T339] RSP: 002b:00007ffed3cfabd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   22.292700][  T339] RAX: ffffffffffffffda RBX: 00007ffed3cfb300 RCX: 00007f8216acf1e7
[   22.293449][  T339] RDX: 0000000000000000 RSI: 00007ffed3cfac40 RDI: 0000000000000005
[   22.293978][  T339] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000078
[   22.294449][  T339] R10: 00007f82169ccee8 R11: 0000000000000246 R12: 00007ffed3cfb320
[   22.295383][  T339] R13: 00000000686e21bf R14: 0000000000499600 R15: 00007ffed3cfad24
| [   25.500965][  T374] ------------[ cut here ]------------
| [ 25.501394][ T374] WARNING: CPU: 0 PID: 374 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) 
| [   25.502014][  T374] Modules linked in: ip_gre gre 8021q dummy vrf veth
| [   25.503042][  T374] Tainted: [W]=WARN
[   25.503288][  T374] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 25.503677][ T374] 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) 
[ 25.503991][ T374] 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
[   25.505091][  T374] RSP: 0018:ffffc900005a7000 EFLAGS: 00010246
[   25.505481][  T374] RAX: 0000000000000000 RBX: ffff88800bf34000 RCX: 0000000000000001
[   25.505960][  T374] RDX: 0000000000000000 RSI: ffffffffb049b941 RDI: ffffffffafc555e0
[   25.506416][  T374] RBP: ffffc900005a70e8 R08: ffff88800bf34218 R09: 0000000000000000
[   25.506882][  T374] R10: ffffc900005a7118 R11: dffffc0000000000 R12: 1ffff920000b4e04
[   25.507337][  T374] R13: 00000000000005c4 R14: ffffc900005a7118 R15: ffff88800bf34218
[   25.507806][  T374] FS:  00007f606a469800(0000) GS:ffff888083cb7000(0000) knlGS:0000000000000000
[   25.508335][  T374] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.508736][  T374] CR2: 00000000004e6e58 CR3: 000000000da60003 CR4: 0000000000772ef0
[   25.509192][  T374] PKRU: 55555554
[   25.509419][  T374] Call Trace:
[   25.509646][  T374]  <TASK>
[ 25.509811][ T374] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 25.510203][ T374] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 25.510512][ T374] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.510840][ T374] netif_set_mtu (net/core/dev.c:9652) 
[ 25.511152][ T374] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 25.511474][ T374] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 25.511715][ T374] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 25.512026][ T374] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 25.512348][ T374] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 25.512660][ T374] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 25.513074][ T374] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 25.513392][ T374] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 25.513706][ T374] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 25.514016][ T374] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 25.514317][ T374] ? __dev_get_by_name (net/core/dev.c:865) 
[ 25.514627][ T374] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 25.514942][ T374] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 25.515250][ T374] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 25.515549][ T374] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 25.515883][ T374] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 25.516197][ T374] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 25.516503][ T374] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 25.516828][ T374] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 25.517134][ T374] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 25.517445][ T374] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 25.517763][ T374] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 25.518069][ T374] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 25.518377][ T374] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.518710][ T374] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 25.519016][ T374] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 25.519329][ T374] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 25.519646][ T374] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 25.519957][ T374] ? 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) 
[ 25.520264][ T374] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 25.520577][ T374] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 25.520918][ T374] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.521231][ T374] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 25.521552][ T374] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 25.521869][ T374] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 25.522182][ T374] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 25.522566][ T374] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 25.522926][ T374] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 25.523369][ T374] ___sys_sendmsg (net/socket.c:2670) 
[ 25.523733][ T374] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 25.524089][ T374] ? __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) 
[ 25.524520][ T374] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 25.524882][ T374] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.525237][ T374] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.525588][ T374] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.525953][ T374] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 25.526300][ T374] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 25.526655][ T374] __sys_sendmsg (net/socket.c:2700) 
[ 25.527025][ T374] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 25.527468][ T374] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 25.527863][ T374] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 25.528220][ T374] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 25.528580][ T374] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   25.529028][  T374] RIP: 0033:0x7f606a6361e7
[ 25.529387][ T374] 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)
[   25.530641][  T374] RSP: 002b:00007ffdb1bd1598 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   25.531175][  T374] RAX: ffffffffffffffda RBX: 00007ffdb1bd1cc0 RCX: 00007f606a6361e7
[   25.531701][  T374] RDX: 0000000000000000 RSI: 00007ffdb1bd1600 RDI: 0000000000000005
[   25.532225][  T374] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000078
[   25.532751][  T374] R10: 00007f606a533ee8 R11: 0000000000000246 R12: 00007ffdb1bd1ce0
[   25.533266][  T374] R13: 00000000686e21c3 R14: 0000000000499600 R15: 00007ffdb1bd16e4
| [   35.169002][  T419] ------------[ cut here ]------------
| [ 35.169469][ T419] WARNING: CPU: 3 PID: 419 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) 
| [   35.170073][  T419] Modules linked in: ip_gre gre 8021q dummy vrf veth
| [   35.171107][  T419] Tainted: [W]=WARN
[   35.171329][  T419] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 35.171736][ T419] 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) 
[ 35.172038][ T419] 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
[   35.173086][  T419] RSP: 0018:ffffc900007f7140 EFLAGS: 00010246
[   35.173679][  T419] RAX: 0000000000000000 RBX: ffff8880077c1000 RCX: 0000000000000001
[   35.174132][  T419] RDX: 0000000000000000 RSI: ffffffffb049b941 RDI: ffffffffafc555e0
[   35.174569][  T419] RBP: ffffc900007f7230 R08: ffff888004e9d000 R09: 0000000000000000
[   35.175733][  T419] R10: ffffc900007f75c8 R11: ffffffffb1250668 R12: 1ffff920000fee2c
[   35.176197][  T419] R13: 00000000000007d0 R14: ffffc900007f7880 R15: ffff88800d91d1e0
[   35.176632][  T419] FS:  00007f3d856df800(0000) GS:ffff888083e37000(0000) knlGS:0000000000000000
[   35.177172][  T419] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.177578][  T419] CR2: 00000000004e5aa0 CR3: 000000000e991001 CR4: 0000000000772ef0
[   35.178053][  T419] PKRU: 55555554
[   35.178275][  T419] Call Trace:
[   35.178492][  T419]  <TASK>
[ 35.178705][ T419] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.179049][ T419] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 35.179343][ T419] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.179703][ T419] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 35.180002][ T419] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 35.180296][ T419] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 35.180600][ T419] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 35.180907][ T419] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 35.181282][ T419] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 35.181573][ T419] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 35.181874][ T419] ? __kernel_text_address (kernel/extable.c:79) 
[ 35.182171][ T419] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.182467][ T419] ? __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) 
[ 35.182770][ T419] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 35.183145][ T419] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.183438][ T419] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.183735][ T419] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 35.184024][ T419] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 35.184317][ T419] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.184613][ T419] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 35.184911][ T419] ? __create_object (mm/kmemleak.c:771) 
[ 35.185212][ T419] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 35.185514][ T419] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 35.185817][ T419] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 35.186187][ T419] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 35.186482][ T419] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 35.186787][ T419] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.187081][ T419] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.187385][ T419] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.187690][ T419] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 35.187987][ T419] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.188279][ T419] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.188583][ T419] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 35.188919][ T419] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.189215][ T419] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.189514][ T419] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 35.189820][ T419] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.190126][ T419] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 35.190430][ T419] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 35.190729][ T419] ? 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) 
[ 35.191025][ T419] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 35.191321][ T419] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 35.191612][ T419] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.191915][ T419] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 35.192212][ T419] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 35.192502][ T419] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 35.192810][ T419] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 35.193106][ T419] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 35.193396][ T419] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 35.193781][ T419] ___sys_sendmsg (net/socket.c:2670) 
[ 35.194076][ T419] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 35.194374][ T419] ? __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) 
[ 35.194751][ T419] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 35.195046][ T419] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.195339][ T419] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.195633][ T419] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.195935][ T419] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 35.196228][ T419] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.196527][ T419] __sys_sendmsg (net/socket.c:2700) 
[ 35.196831][ T419] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 35.197194][ T419] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 35.197497][ T419] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.197800][ T419] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 35.198091][ T419] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   35.198451][  T419] RIP: 0033:0x7f3d858ac1e7
[ 35.198813][ T419] 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)
[   35.199869][  T419] RSP: 002b:00007fffde5e90d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   35.200310][  T419] RAX: ffffffffffffffda RBX: 00007fffde5e9800 RCX: 00007f3d858ac1e7
[   35.200761][  T419] RDX: 0000000000000000 RSI: 00007fffde5e9140 RDI: 0000000000000005
[   35.201204][  T419] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   35.201638][  T419] R10: 00007f3d857a9ee8 R11: 0000000000000246 R12: 0000000000000004
[   35.202080][  T419] R13: 00000000686e21cc R14: 0000000000499600 R15: 0000000000000000
| [   35.326040][  T420] ------------[ cut here ]------------
| [ 35.326352][ T420] WARNING: CPU: 0 PID: 420 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) 
| [   35.326907][  T420] Modules linked in: ip_gre gre 8021q dummy vrf veth
| [   35.327870][  T420] Tainted: [W]=WARN
[   35.328078][  T420] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 35.328419][ T420] 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) 
[ 35.328733][ T420] 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
[   35.329725][  T420] RSP: 0018:ffffc900007f7140 EFLAGS: 00010246
[   35.330076][  T420] RAX: 0000000000000000 RBX: ffff8880077a9000 RCX: 0000000000000001
[   35.330487][  T420] RDX: 0000000000000000 RSI: ffffffffb049b941 RDI: ffffffffafc555e0
[   35.330908][  T420] RBP: ffffc900007f7230 R08: ffff88800bca2000 R09: 0000000000000000
[   35.331319][  T420] R10: ffffc900007f75c8 R11: ffffffffb1250668 R12: 1ffff920000fee2c
[   35.332349][  T420] R13: 00000000000007d0 R14: ffffc900007f7880 R15: ffff88800d91dc60
[   35.332770][  T420] FS:  00007f1d48961800(0000) GS:ffff888083cb7000(0000) knlGS:0000000000000000
[   35.333249][  T420] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.333594][  T420] CR2: 00000000004e5aa8 CR3: 0000000005022004 CR4: 0000000000772ef0
[   35.334016][  T420] PKRU: 55555554
[   35.334223][  T420] Call Trace:
[   35.334428][  T420]  <TASK>
[ 35.334568][ T420] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.334859][ T420] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 35.335133][ T420] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.335413][ T420] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 35.335697][ T420] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 35.335973][ T420] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 35.336252][ T420] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 35.336530][ T420] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 35.336887][ T420] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 35.337166][ T420] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 35.337440][ T420] ? __kernel_text_address (kernel/extable.c:79) 
[ 35.337729][ T420] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.338008][ T420] ? __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) 
[ 35.338282][ T420] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 35.338629][ T420] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.338917][ T420] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.339190][ T420] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 35.339468][ T420] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 35.339752][ T420] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.340026][ T420] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 35.340297][ T420] ? __create_object (mm/kmemleak.c:771) 
[ 35.340571][ T420] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 35.340862][ T420] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 35.341136][ T420] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 35.341481][ T420] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 35.341772][ T420] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 35.342053][ T420] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.342326][ T420] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.342606][ T420] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.342894][ T420] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 35.343165][ T420] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.343440][ T420] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.343732][ T420] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 35.344009][ T420] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.344286][ T420] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.344566][ T420] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 35.344862][ T420] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.345137][ T420] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 35.345423][ T420] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 35.345713][ T420] ? 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) 
[ 35.345990][ T420] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 35.346268][ T420] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 35.346542][ T420] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.346832][ T420] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 35.347109][ T420] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 35.347383][ T420] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 35.347706][ T420] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 35.347986][ T420] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 35.348272][ T420] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 35.348639][ T420] ___sys_sendmsg (net/socket.c:2670) 
[ 35.348925][ T420] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 35.349199][ T420] ? __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) 
[ 35.349542][ T420] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 35.349834][ T420] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.350110][ T420] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.350388][ T420] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.350666][ T420] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 35.350952][ T420] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.351231][ T420] __sys_sendmsg (net/socket.c:2700) 
[ 35.351506][ T420] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 35.351856][ T420] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 35.352149][ T420] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.352425][ T420] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 35.352709][ T420] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   35.353047][  T420] RIP: 0033:0x7f1d48b2e1e7
[ 35.353331][ T420] 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)
[   35.354324][  T420] RSP: 002b:00007ffe1bc7fb68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   35.354750][  T420] RAX: ffffffffffffffda RBX: 00007ffe1bc80290 RCX: 00007f1d48b2e1e7
[   35.355163][  T420] RDX: 0000000000000000 RSI: 00007ffe1bc7fbd0 RDI: 0000000000000005
[   35.355573][  T420] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   35.355997][  T420] R10: 00007f1d48a2bee8 R11: 0000000000000246 R12: 0000000000000004
[   35.356409][  T420] R13: 00000000686e21cd R14: 0000000000499600 R15: 0000000000000000
| [   35.461663][  T421] ------------[ cut here ]------------
| [ 35.461989][ T421] WARNING: CPU: 3 PID: 421 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) 
| [   35.462539][  T421] Modules linked in: ip_gre gre 8021q dummy vrf veth
| [   35.463460][  T421] Tainted: [W]=WARN
[   35.463678][  T421] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 35.464022][ T421] 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) 
[ 35.464308][ T421] 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
[   35.465914][  T421] RSP: 0018:ffffc90000807140 EFLAGS: 00010246
[   35.466262][  T421] RAX: 0000000000000000 RBX: ffff88800db5c000 RCX: 0000000000000001
[   35.466679][  T421] RDX: 0000000000000000 RSI: ffffffffb049b941 RDI: ffffffffafc555e0
[   35.467090][  T421] RBP: ffffc90000807230 R08: ffff888005168800 R09: 0000000000000000
[   35.467500][  T421] R10: ffffc900008075c8 R11: ffffffffb1250668 R12: 1ffff92000100e2c
[   35.467920][  T421] R13: 00000000000007d0 R14: ffffc90000807880 R15: ffff88800d91e6e0
[   35.468331][  T421] FS:  00007f97fa1da800(0000) GS:ffff888083e37000(0000) knlGS:0000000000000000
[   35.468872][  T421] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.469221][  T421] CR2: 00000000004e73d0 CR3: 0000000009a1a003 CR4: 0000000000772ef0
[   35.469634][  T421] PKRU: 55555554
[   35.469850][  T421] Call Trace:
[   35.470055][  T421]  <TASK>
[ 35.470194][ T421] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.470477][ T421] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 35.470764][ T421] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.471041][ T421] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 35.471316][ T421] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 35.471590][ T421] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 35.471876][ T421] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 35.472158][ T421] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 35.472508][ T421] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 35.472792][ T421] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 35.473065][ T421] ? __kernel_text_address (kernel/extable.c:79) 
[ 35.473340][ T421] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.473616][ T421] ? __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) 
[ 35.473898][ T421] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 35.474238][ T421] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.474516][ T421] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.474799][ T421] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 35.475073][ T421] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 35.475347][ T421] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.475620][ T421] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 35.475898][ T421] ? __create_object (mm/kmemleak.c:771) 
[ 35.476178][ T421] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 35.476454][ T421] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 35.476740][ T421] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 35.477081][ T421] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 35.477362][ T421] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 35.477640][ T421] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.477921][ T421] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.478201][ T421] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.478474][ T421] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 35.478814][ T421] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.479092][ T421] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.479367][ T421] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 35.479642][ T421] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.479930][ T421] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.480210][ T421] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 35.480487][ T421] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.480768][ T421] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 35.481057][ T421] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 35.481329][ T421] ? 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) 
[ 35.481605][ T421] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 35.481899][ T421] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 35.482171][ T421] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.482449][ T421] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 35.482736][ T421] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 35.483014][ T421] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 35.483295][ T421] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 35.483576][ T421] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 35.483859][ T421] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 35.484212][ T421] ___sys_sendmsg (net/socket.c:2670) 
[ 35.484481][ T421] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 35.484761][ T421] ? __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) 
[ 35.485108][ T421] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 35.485385][ T421] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.485663][ T421] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.485974][ T421] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.486250][ T421] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 35.486524][ T421] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.486819][ T421] __sys_sendmsg (net/socket.c:2700) 
[ 35.487104][ T421] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 35.487442][ T421] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 35.487738][ T421] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.488015][ T421] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 35.488289][ T421] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   35.488682][  T421] RIP: 0033:0x7f97fa3a71e7
[ 35.488969][ T421] 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)
[   35.489961][  T421] RSP: 002b:00007ffe9382ef48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   35.490376][  T421] RAX: ffffffffffffffda RBX: 00007ffe9382f670 RCX: 00007f97fa3a71e7
[   35.490795][  T421] RDX: 0000000000000000 RSI: 00007ffe9382efb0 RDI: 0000000000000005
[   35.491209][  T421] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   35.491620][  T421] R10: 00007f97fa2a4ee8 R11: 0000000000000246 R12: 0000000000000004
[   35.492039][  T421] R13: 00000000686e21cd R14: 0000000000499600 R15: 0000000000000000
| [   35.610776][  T422] ------------[ cut here ]------------
| [ 35.611089][ T422] WARNING: CPU: 0 PID: 422 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) 
| [   35.611680][  T422] Modules linked in: ip_gre gre 8021q dummy vrf veth
| [   35.612607][  T422] Tainted: [W]=WARN
[   35.613902][  T422] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 35.614252][ T422] 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) 
[ 35.614556][ T422] 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
[   35.615554][  T422] RSP: 0018:ffffc90000807140 EFLAGS: 00010246
[   35.615913][  T422] RAX: 0000000000000000 RBX: ffff888007ab1000 RCX: 0000000000000001
[   35.616332][  T422] RDX: 0000000000000000 RSI: ffffffffb049b941 RDI: ffffffffafc555e0
[   35.616773][  T422] RBP: ffffc90000807230 R08: ffff88802ad2e800 R09: 0000000000000000
[   35.617185][  T422] R10: ffffc900008075c8 R11: ffffffffb1250668 R12: 1ffff92000100e2c
[   35.617771][  T422] R13: 00000000000007d0 R14: ffffc90000807880 R15: ffff88800d91f160
[   35.618186][  T422] FS:  00007fe5e78ff800(0000) GS:ffff888083cb7000(0000) knlGS:0000000000000000
[   35.618705][  T422] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.619056][  T422] CR2: 00000000004e5ab0 CR3: 000000000c50a006 CR4: 0000000000772ef0
[   35.619482][  T422] PKRU: 55555554
[   35.619697][  T422] Call Trace:
[   35.619909][  T422]  <TASK>
[ 35.620052][ T422] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.620340][ T422] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 35.620636][ T422] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.620928][ T422] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 35.621202][ T422] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 35.621511][ T422] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 35.621802][ T422] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 35.622085][ T422] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 35.622445][ T422] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 35.622729][ T422] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 35.623002][ T422] ? __kernel_text_address (kernel/extable.c:79) 
[ 35.623277][ T422] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.623554][ T422] ? __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) 
[ 35.623836][ T422] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 35.624176][ T422] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.624460][ T422] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.624743][ T422] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 35.625019][ T422] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 35.625295][ T422] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.625570][ T422] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 35.625852][ T422] ? __create_object (mm/kmemleak.c:771) 
[ 35.626130][ T422] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 35.626405][ T422] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 35.626690][ T422] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 35.627033][ T422] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 35.627314][ T422] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 35.627595][ T422] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.627878][ T422] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.628158][ T422] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.628432][ T422] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 35.628734][ T422] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.629011][ T422] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.629284][ T422] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 35.629557][ T422] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.629843][ T422] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.630129][ T422] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 35.630403][ T422] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.630689][ T422] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 35.630993][ T422] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 35.631283][ T422] ? 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) 
[ 35.631573][ T422] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 35.631877][ T422] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 35.632158][ T422] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.632436][ T422] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 35.632724][ T422] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 35.633009][ T422] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 35.633291][ T422] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 35.633568][ T422] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 35.633856][ T422] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 35.634210][ T422] ___sys_sendmsg (net/socket.c:2670) 
[ 35.634484][ T422] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 35.634767][ T422] ? __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) 
[ 35.635123][ T422] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 35.635403][ T422] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.635692][ T422] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.635983][ T422] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.636259][ T422] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 35.636534][ T422] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.636827][ T422] __sys_sendmsg (net/socket.c:2700) 
[ 35.637121][ T422] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 35.637470][ T422] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 35.637770][ T422] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.638052][ T422] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 35.638330][ T422] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   35.638710][  T422] RIP: 0033:0x7fe5e7acc1e7
[ 35.639002][ T422] 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)
[   35.640010][  T422] RSP: 002b:00007ffe7783fa08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   35.640429][  T422] RAX: ffffffffffffffda RBX: 00007ffe77840130 RCX: 00007fe5e7acc1e7
[   35.640855][  T422] RDX: 0000000000000000 RSI: 00007ffe7783fa70 RDI: 0000000000000005
[   35.641281][  T422] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   35.641706][  T422] R10: 00007fe5e79c9ee8 R11: 0000000000000246 R12: 0000000000000004
[   35.642118][  T422] R13: 00000000686e21cd R14: 0000000000499600 R15: 0000000000000000
| [   35.758593][  T423] ------------[ cut here ]------------
| [ 35.759696][ T423] WARNING: CPU: 0 PID: 423 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) 
| [   35.760266][  T423] Modules linked in: ip_gre gre 8021q dummy vrf veth
| [   35.761188][  T423] Tainted: [W]=WARN
[   35.761399][  T423] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 35.761750][ T423] 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) 
[ 35.762042][ T423] 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
[   35.763026][  T423] RSP: 0018:ffffc90000817140 EFLAGS: 00010246
[   35.763374][  T423] RAX: 0000000000000000 RBX: ffff888008a61000 RCX: 0000000000000001
[   35.763800][  T423] RDX: 0000000000000000 RSI: ffffffffb049b941 RDI: ffffffffafc555e0
[   35.764211][  T423] RBP: ffffc90000817230 R08: ffff88802afee800 R09: 0000000000000000
[   35.764622][  T423] R10: ffffc900008175c8 R11: ffffffffb1250668 R12: 1ffff92000102e2c
[   35.765039][  T423] R13: 00000000000007d0 R14: ffffc90000817880 R15: ffff88800d91fbe0
[   35.765455][  T423] FS:  00007f79c36f3800(0000) GS:ffff888083cb7000(0000) knlGS:0000000000000000
[   35.765944][  T423] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.766291][  T423] CR2: 00000000004e55b8 CR3: 000000000e968001 CR4: 0000000000772ef0
[   35.766711][  T423] PKRU: 55555554
[   35.766917][  T423] Call Trace:
[   35.767122][  T423]  <TASK>
[ 35.767264][ T423] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.767547][ T423] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 35.767829][ T423] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.768107][ T423] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 35.768381][ T423] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 35.768683][ T423] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 35.768965][ T423] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 35.769245][ T423] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 35.769601][ T423] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 35.769885][ T423] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 35.770155][ T423] ? __kernel_text_address (kernel/extable.c:79) 
[ 35.770432][ T423] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.770717][ T423] ? __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) 
[ 35.770994][ T423] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 35.771337][ T423] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.771613][ T423] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.771912][ T423] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 35.772189][ T423] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 35.772463][ T423] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.772745][ T423] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 35.773018][ T423] ? __create_object (mm/kmemleak.c:771) 
[ 35.773293][ T423] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 35.773573][ T423] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 35.773856][ T423] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 35.774197][ T423] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 35.774477][ T423] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 35.774764][ T423] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.775039][ T423] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.775318][ T423] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.775592][ T423] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 35.775879][ T423] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.776156][ T423] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.776429][ T423] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 35.776713][ T423] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.776993][ T423] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.777272][ T423] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 35.777546][ T423] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.777839][ T423] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 35.778125][ T423] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 35.778401][ T423] ? 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) 
[ 35.778700][ T423] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 35.778981][ T423] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 35.779255][ T423] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.779536][ T423] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 35.779832][ T423] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 35.780107][ T423] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 35.780387][ T423] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 35.780678][ T423] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 35.780954][ T423] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 35.781307][ T423] ___sys_sendmsg (net/socket.c:2670) 
[ 35.781578][ T423] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 35.781870][ T423] ? __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) 
[ 35.782215][ T423] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 35.782494][ T423] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.782784][ T423] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.783065][ T423] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.783340][ T423] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 35.783614][ T423] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.783909][ T423] __sys_sendmsg (net/socket.c:2700) 
[ 35.784188][ T423] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 35.784529][ T423] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 35.784828][ T423] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.785104][ T423] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 35.785378][ T423] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   35.785729][  T423] RIP: 0033:0x7f79c38c01e7
[ 35.786012][ T423] 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)
[   35.787010][  T423] RSP: 002b:00007fff0c7c4208 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   35.787425][  T423] RAX: ffffffffffffffda RBX: 00007fff0c7c4930 RCX: 00007f79c38c01e7
[   35.787848][  T423] RDX: 0000000000000000 RSI: 00007fff0c7c4270 RDI: 0000000000000005
[   35.788266][  T423] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   35.788699][  T423] R10: 00007f79c37bdee8 R11: 0000000000000246 R12: 0000000000000004
[   35.789109][  T423] R13: 00000000686e21cd R14: 0000000000499600 R15: 0000000000000000
| [   35.900071][  T424] ------------[ cut here ]------------
| [ 35.900393][ T424] WARNING: CPU: 3 PID: 424 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) 
| [   35.900957][  T424] Modules linked in: ip_gre gre 8021q dummy vrf veth
| [   35.901890][  T424] Tainted: [W]=WARN
[   35.902100][  T424] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 35.902450][ T424] 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) 
[ 35.903031][ T424] 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
[   35.904019][  T424] RSP: 0018:ffffc90000827140 EFLAGS: 00010246
[   35.904365][  T424] RAX: 0000000000000000 RBX: ffff888008a49000 RCX: 0000000000000001
[   35.904786][  T424] RDX: 0000000000000000 RSI: ffffffffb049b941 RDI: ffffffffafc555e0
[   35.905196][  T424] RBP: ffffc90000827230 R08: ffff888009342000 R09: 0000000000000000
[   35.905603][  T424] R10: ffffc900008275c8 R11: ffffffffb1250668 R12: 1ffff92000104e2c
[   35.906022][  T424] R13: 00000000000007d0 R14: ffffc90000827880 R15: ffff88800960b860
[   35.906437][  T424] FS:  00007f1719197800(0000) GS:ffff888083e37000(0000) knlGS:0000000000000000
[   35.906920][  T424] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.907263][  T424] CR2: 00000000004e5ac8 CR3: 0000000008b5c002 CR4: 0000000000772ef0
[   35.907684][  T424] PKRU: 55555554
[   35.907891][  T424] Call Trace:
[   35.908100][  T424]  <TASK>
[ 35.908239][ T424] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.908520][ T424] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 35.908819][ T424] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.909095][ T424] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 35.909369][ T424] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 35.909643][ T424] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 35.909932][ T424] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 35.910219][ T424] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 35.910566][ T424] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 35.910848][ T424] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 35.911119][ T424] ? __kernel_text_address (kernel/extable.c:79) 
[ 35.911396][ T424] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.911685][ T424] ? __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) 
[ 35.911967][ T424] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 35.912379][ T424] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.912683][ T424] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.912974][ T424] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 35.913265][ T424] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 35.913559][ T424] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.913860][ T424] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 35.914147][ T424] ? __create_object (mm/kmemleak.c:771) 
[ 35.914443][ T424] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 35.914742][ T424] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 35.915031][ T424] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 35.915389][ T424] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 35.915697][ T424] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 35.915996][ T424] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.916294][ T424] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.916576][ T424] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.916868][ T424] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 35.917143][ T424] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.917419][ T424] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.917703][ T424] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 35.917981][ T424] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.918260][ T424] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.918544][ T424] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 35.918900][ T424] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.919179][ T424] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 35.919465][ T424] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 35.919748][ T424] ? 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) 
[ 35.920026][ T424] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 35.920302][ T424] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 35.920575][ T424] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.920874][ T424] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 35.921152][ T424] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 35.921430][ T424] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 35.921723][ T424] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 35.922004][ T424] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 35.922280][ T424] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 35.922630][ T424] ___sys_sendmsg (net/socket.c:2670) 
[ 35.922921][ T424] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 35.923196][ T424] ? __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) 
[ 35.923538][ T424] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 35.923827][ T424] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.924104][ T424] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.924385][ T424] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.924658][ T424] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 35.924943][ T424] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.925225][ T424] __sys_sendmsg (net/socket.c:2700) 
[ 35.925498][ T424] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 35.925849][ T424] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 35.926134][ T424] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.926408][ T424] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 35.926692][ T424] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   35.927033][  T424] RIP: 0033:0x7f17193641e7
[ 35.927323][ T424] 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)
[   35.928312][  T424] RSP: 002b:00007ffe54258b98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   35.928795][  T424] RAX: ffffffffffffffda RBX: 00007ffe542592c0 RCX: 00007f17193641e7
[   35.929214][  T424] RDX: 0000000000000000 RSI: 00007ffe54258c00 RDI: 0000000000000005
[   35.929626][  T424] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   35.930049][  T424] R10: 00007f1719261ee8 R11: 0000000000000246 R12: 0000000000000004
[   35.930460][  T424] R13: 00000000686e21cd R14: 0000000000499600 R15: 0000000000000000
| [   36.043391][  T425] ------------[ cut here ]------------
| [ 36.043729][ T425] WARNING: CPU: 3 PID: 425 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) 
| [   36.044289][  T425] Modules linked in: ip_gre gre 8021q dummy vrf veth
| [   36.045211][  T425] Tainted: [W]=WARN
[   36.045420][  T425] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 36.045772][ T425] 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) 
[ 36.046060][ T425] 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
[   36.047048][  T425] RSP: 0018:ffffc90000837140 EFLAGS: 00010246
[   36.047398][  T425] RAX: 0000000000000000 RBX: ffff888008a79000 RCX: 0000000000000001
[   36.047823][  T425] RDX: 0000000000000000 RSI: ffffffffb049b941 RDI: ffffffffafc555e0
[   36.048232][  T425] RBP: ffffc90000837230 R08: ffff8880051a8800 R09: 0000000000000000
[   36.048699][  T425] R10: ffffc900008375c8 R11: ffffffffb1250668 R12: 1ffff92000106e2c
[   36.049114][  T425] R13: 00000000000007d0 R14: ffffc90000837880 R15: ffff88800960b160
[   36.049531][  T425] FS:  00007f25fbecf800(0000) GS:ffff888083e37000(0000) knlGS:0000000000000000
[   36.050017][  T425] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.050363][  T425] CR2: 00000000004e5ac0 CR3: 000000000a97d003 CR4: 0000000000772ef0
[   36.050783][  T425] PKRU: 55555554
[   36.050992][  T425] Call Trace:
[   36.051198][  T425]  <TASK>
[ 36.051338][ T425] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.051623][ T425] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 36.051906][ T425] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.052185][ T425] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 36.052459][ T425] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 36.052742][ T425] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 36.053020][ T425] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 36.053301][ T425] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 36.053654][ T425] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 36.053936][ T425] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 36.054210][ T425] ? __kernel_text_address (kernel/extable.c:79) 
[ 36.054486][ T425] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.054769][ T425] ? __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) 
[ 36.055059][ T425] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 36.055405][ T425] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.055696][ T425] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.055974][ T425] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 36.056247][ T425] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 36.056520][ T425] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.056803][ T425] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 36.057077][ T425] ? __create_object (mm/kmemleak.c:771) 
[ 36.057355][ T425] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 36.057638][ T425] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 36.057924][ T425] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 36.058268][ T425] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 36.058548][ T425] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 36.058883][ T425] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 36.059157][ T425] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.059439][ T425] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.059738][ T425] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 36.060017][ T425] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.060294][ T425] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 36.060568][ T425] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 36.060855][ T425] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 36.061132][ T425] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.061410][ T425] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 36.061698][ T425] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 36.061980][ T425] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 36.062267][ T425] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 36.062539][ T425] ? 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) 
[ 36.062827][ T425] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 36.063107][ T425] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 36.063380][ T425] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.063659][ T425] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 36.063967][ T425] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 36.064245][ T425] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 36.064527][ T425] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 36.064817][ T425] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 36.065090][ T425] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 36.065440][ T425] ___sys_sendmsg (net/socket.c:2670) 
[ 36.065721][ T425] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 36.066001][ T425] ? __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) 
[ 36.066343][ T425] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 36.066619][ T425] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.066913][ T425] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.067195][ T425] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.067469][ T425] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 36.067751][ T425] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.068033][ T425] __sys_sendmsg (net/socket.c:2700) 
[ 36.068309][ T425] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 36.068707][ T425] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 36.069004][ T425] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.069281][ T425] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 36.069555][ T425] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   36.069900][  T425] RIP: 0033:0x7f25fc09c1e7
[ 36.070187][ T425] 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)
[   36.071176][  T425] RSP: 002b:00007ffc7c0dcbf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   36.071591][  T425] RAX: ffffffffffffffda RBX: 00007ffc7c0dd320 RCX: 00007f25fc09c1e7
[   36.072011][  T425] RDX: 0000000000000000 RSI: 00007ffc7c0dcc60 RDI: 0000000000000005
[   36.072427][  T425] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   36.072845][  T425] R10: 00007f25fbf99ee8 R11: 0000000000000246 R12: 0000000000000004
[   36.073256][  T425] R13: 00000000686e21cd R14: 0000000000499600 R15: 0000000000000000
| [   36.199294][  T426] ------------[ cut here ]------------
| [ 36.199650][ T426] WARNING: CPU: 3 PID: 426 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) 
| [   36.200245][  T426] Modules linked in: ip_gre gre 8021q dummy vrf veth
| [   36.201251][  T426] Tainted: [W]=WARN
[   36.201470][  T426] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 36.201839][ T426] 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) 
[ 36.202137][ T426] 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
[   36.203179][  T426] RSP: 0018:ffffc90000857140 EFLAGS: 00010246
[   36.203547][  T426] RAX: 0000000000000000 RBX: ffff88800bf34000 RCX: 0000000000000001
[   36.203989][  T426] RDX: 0000000000000000 RSI: ffffffffb049b941 RDI: ffffffffafc555e0
[   36.204427][  T426] RBP: ffffc90000857230 R08: ffff88802accd000 R09: 0000000000000000
[   36.204870][  T426] R10: ffffc900008575c8 R11: ffffffffb1250668 R12: 1ffff9200010ae2c
[   36.205304][  T426] R13: 00000000000007d0 R14: ffffc90000857880 R15: ffff888009609c60
[   36.205749][  T426] FS:  00007ff1ab221800(0000) GS:ffff888083e37000(0000) knlGS:0000000000000000
[   36.206260][  T426] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.206625][  T426] CR2: 00000000004e73f8 CR3: 0000000005461004 CR4: 0000000000772ef0
[   36.207070][  T426] PKRU: 55555554
[   36.207287][  T426] Call Trace:
[   36.207502][  T426]  <TASK>
[ 36.207647][ T426] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.207952][ T426] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 36.208242][ T426] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.208534][ T426] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 36.208882][ T426] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 36.209173][ T426] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 36.209465][ T426] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 36.209788][ T426] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 36.210155][ T426] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 36.210454][ T426] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 36.210749][ T426] ? __kernel_text_address (kernel/extable.c:79) 
[ 36.211041][ T426] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.211335][ T426] ? __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) 
[ 36.211625][ T426] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 36.211988][ T426] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.212278][ T426] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.212572][ T426] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 36.212869][ T426] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 36.213161][ T426] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.213450][ T426] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 36.213746][ T426] ? __create_object (mm/kmemleak.c:771) 
[ 36.214036][ T426] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 36.214327][ T426] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 36.214617][ T426] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 36.214990][ T426] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 36.215285][ T426] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 36.215579][ T426] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 36.215879][ T426] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.216173][ T426] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.216461][ T426] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 36.216759][ T426] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.217057][ T426] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 36.217346][ T426] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 36.217638][ T426] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 36.217941][ T426] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.218238][ T426] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 36.218528][ T426] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 36.218889][ T426] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 36.219194][ T426] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 36.219486][ T426] ? 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) 
[ 36.219785][ T426] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 36.220081][ T426] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 36.220366][ T426] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.220661][ T426] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 36.220964][ T426] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 36.221287][ T426] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 36.221591][ T426] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 36.221901][ T426] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 36.222199][ T426] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 36.222571][ T426] ___sys_sendmsg (net/socket.c:2670) 
[ 36.222865][ T426] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 36.223158][ T426] ? __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) 
[ 36.223518][ T426] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 36.223829][ T426] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.224122][ T426] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.224412][ T426] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.224712][ T426] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 36.225007][ T426] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.225304][ T426] __sys_sendmsg (net/socket.c:2700) 
[ 36.225591][ T426] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 36.225964][ T426] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 36.226266][ T426] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.226558][ T426] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 36.226857][ T426] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   36.227223][  T426] RIP: 0033:0x7ff1ab3ee1e7
[ 36.227520][ T426] 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)
[   36.228580][  T426] RSP: 002b:00007ffd3d8aa5a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   36.229066][  T426] RAX: ffffffffffffffda RBX: 00007ffd3d8aacd0 RCX: 00007ff1ab3ee1e7
[   36.229501][  T426] RDX: 0000000000000000 RSI: 00007ffd3d8aa610 RDI: 0000000000000005
[   36.229956][  T426] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   36.230392][  T426] R10: 00007ff1ab2ebee8 R11: 0000000000000246 R12: 0000000000000004
[   36.230833][  T426] R13: 00000000686e21cd R14: 0000000000499600 R15: 0000000000000000
| [   36.332454][  T427] ------------[ cut here ]------------
| [ 36.332795][ T427] WARNING: CPU: 1 PID: 427 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) 
| [   36.333375][  T427] Modules linked in: ip_gre gre 8021q dummy vrf veth
| [   36.334367][  T427] Tainted: [W]=WARN
[   36.334587][  T427] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 36.334958][ T427] 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) 
[ 36.335257][ T427] 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
[   36.336701][  T427] RSP: 0018:ffffc90000867140 EFLAGS: 00010246
[   36.337072][  T427] RAX: 0000000000000000 RBX: ffff8880051b1000 RCX: 0000000000000001
[   36.337508][  T427] RDX: 0000000000000000 RSI: ffffffffb049b941 RDI: ffffffffafc555e0
[   36.337951][  T427] RBP: ffffc90000867230 R08: ffff8880094e2000 R09: 0000000000000000
[   36.338383][  T427] R10: ffffc900008675c8 R11: ffffffffb1250668 R12: 1ffff9200010ce2c
[   36.338832][  T427] R13: 00000000000007d0 R14: ffffc90000867880 R15: ffff88800528b860
[   36.339267][  T427] FS:  00007f7e8c10f800(0000) GS:ffff888083d37000(0000) knlGS:0000000000000000
[   36.339782][  T427] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.340149][  T427] CR2: 00000000004e5ab8 CR3: 000000000e97f006 CR4: 0000000000772ef0
[   36.340589][  T427] PKRU: 55555554
[   36.340817][  T427] Call Trace:
[   36.341033][  T427]  <TASK>
[ 36.341181][ T427] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.341477][ T427] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 36.341774][ T427] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.342070][ T427] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 36.342362][ T427] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 36.342652][ T427] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 36.342957][ T427] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 36.343252][ T427] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 36.343620][ T427] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 36.343924][ T427] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 36.344214][ T427] ? __kernel_text_address (kernel/extable.c:79) 
[ 36.344505][ T427] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.344806][ T427] ? __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) 
[ 36.345095][ T427] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 36.345454][ T427] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.345753][ T427] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.346041][ T427] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 36.346337][ T427] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 36.346631][ T427] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.346930][ T427] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 36.347215][ T427] ? __create_object (mm/kmemleak.c:771) 
[ 36.347507][ T427] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 36.347809][ T427] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 36.348099][ T427] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 36.348465][ T427] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 36.348778][ T427] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 36.349074][ T427] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 36.349362][ T427] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.349658][ T427] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.349958][ T427] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 36.350244][ T427] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.350536][ T427] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 36.350836][ T427] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 36.351129][ T427] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 36.351423][ T427] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.351733][ T427] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 36.352025][ T427] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 36.352316][ T427] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 36.352619][ T427] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 36.352921][ T427] ? 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) 
[ 36.353215][ T427] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 36.353512][ T427] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 36.353808][ T427] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.354102][ T427] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 36.354396][ T427] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 36.354697][ T427] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 36.355012][ T427] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 36.355308][ T427] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 36.355603][ T427] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 36.355985][ T427] ___sys_sendmsg (net/socket.c:2670) 
[ 36.356275][ T427] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 36.356565][ T427] ? __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) 
[ 36.356932][ T427] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 36.357228][ T427] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.357521][ T427] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.357833][ T427] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.358125][ T427] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 36.358500][ T427] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.358808][ T427] __sys_sendmsg (net/socket.c:2700) 
[ 36.359088][ T427] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 36.359426][ T427] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 36.359747][ T427] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.360026][ T427] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 36.360302][ T427] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   36.360645][  T427] RIP: 0033:0x7f7e8c2dc1e7
[ 36.360935][ T427] 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)
[   36.361932][  T427] RSP: 002b:00007ffe61c22e28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   36.362345][  T427] RAX: ffffffffffffffda RBX: 00007ffe61c23550 RCX: 00007f7e8c2dc1e7
[   36.362762][  T427] RDX: 0000000000000000 RSI: 00007ffe61c22e90 RDI: 0000000000000005
[   36.363174][  T427] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   36.363591][  T427] R10: 00007f7e8c1d9ee8 R11: 0000000000000246 R12: 0000000000000004
[   36.364012][  T427] R13: 00000000686e21ce R14: 0000000000499600 R15: 0000000000000000
| [   36.502162][  T428] ------------[ cut here ]------------
| [ 36.502504][ T428] WARNING: CPU: 2 PID: 428 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) 
| [   36.503087][  T428] Modules linked in: ip_gre gre 8021q dummy vrf veth
| [   36.504066][  T428] Tainted: [W]=WARN
[   36.504288][  T428] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 36.504645][ T428] 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) 
[ 36.504966][ T428] 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
[   36.505978][  T428] RSP: 0018:ffffc90000917140 EFLAGS: 00010246
[   36.506341][  T428] RAX: 0000000000000000 RBX: ffff888008b39000 RCX: 0000000000000001
[   36.506777][  T428] RDX: 0000000000000000 RSI: ffffffffb049b941 RDI: ffffffffafc555e0
[   36.507198][  T428] RBP: ffffc90000917230 R08: ffff88800c6e0800 R09: 0000000000000000
[   36.507629][  T428] R10: ffffc900009175c8 R11: ffffffffb1250668 R12: 1ffff92000122e2c
[   36.508067][  T428] R13: 00000000000007d0 R14: ffffc90000917880 R15: ffff88800505e360
[   36.508491][  T428] FS:  00007f2010605800(0000) GS:ffff888083db7000(0000) knlGS:0000000000000000
[   36.509025][  T428] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.509393][  T428] CR2: 00000000004e59c0 CR3: 000000000bf88004 CR4: 0000000000772ef0
[   36.509957][  T428] PKRU: 55555554
[   36.510350][  T428] Call Trace:
[   36.510712][  T428]  <TASK>
[ 36.510871][ T428] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.511164][ T428] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 36.511449][ T428] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.511760][ T428] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 36.512054][ T428] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 36.512342][ T428] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 36.512631][ T428] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 36.512951][ T428] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 36.513316][ T428] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 36.513602][ T428] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 36.513909][ T428] ? __kernel_text_address (kernel/extable.c:79) 
[ 36.514202][ T428] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.514493][ T428] ? __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) 
[ 36.514792][ T428] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 36.515144][ T428] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.515431][ T428] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.515728][ T428] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 36.516019][ T428] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 36.516305][ T428] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.516595][ T428] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 36.516904][ T428] ? __create_object (mm/kmemleak.c:771) 
[ 36.517197][ T428] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 36.517484][ T428] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 36.517779][ T428] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 36.518136][ T428] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 36.518432][ T428] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 36.518758][ T428] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 36.519049][ T428] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.519340][ T428] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.519627][ T428] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 36.519923][ T428] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.520213][ T428] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 36.520556][ T428] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 36.520885][ T428] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 36.521189][ T428] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.521495][ T428] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 36.521809][ T428] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 36.522111][ T428] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 36.522422][ T428] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 36.522742][ T428] ? 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) 
[ 36.523046][ T428] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 36.523351][ T428] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 36.523637][ T428] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.523943][ T428] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 36.524232][ T428] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 36.524521][ T428] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 36.524840][ T428] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 36.525147][ T428] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 36.525431][ T428] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 36.525806][ T428] ___sys_sendmsg (net/socket.c:2670) 
[ 36.526090][ T428] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 36.526387][ T428] ? __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) 
[ 36.526752][ T428] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 36.527051][ T428] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.527339][ T428] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.527632][ T428] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.527929][ T428] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 36.528218][ T428] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.528509][ T428] __sys_sendmsg (net/socket.c:2700) 
[ 36.528832][ T428] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 36.529183][ T428] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 36.529490][ T428] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.529788][ T428] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 36.530078][ T428] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   36.530426][  T428] RIP: 0033:0x7f20107d21e7
[ 36.530732][ T428] 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)
[   36.531735][  T428] RSP: 002b:00007ffc36aec2a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   36.532162][  T428] RAX: ffffffffffffffda RBX: 00007ffc36aec9d0 RCX: 00007f20107d21e7
[   36.532584][  T428] RDX: 0000000000000000 RSI: 00007ffc36aec310 RDI: 0000000000000005
[   36.533027][  T428] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   36.533456][  T428] R10: 00007f20106cfee8 R11: 0000000000000246 R12: 0000000000000004


Finger prints:
netif_set_mtu_ext:rtnl_newlink:rtnetlink_rcv_msg:netlink_rcv_skb:netlink_unicast
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:ip_tunnel_newlink:ipgre_newlink