======================================
| [  222.367084][ T1683] ip_gre: GRE over IPv4 tunneling driver
| [  222.447028][ T1682] ------------[ cut here ]------------
| [ 222.448124][ T1682] WARNING: CPU: 0 PID: 1682 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) 
| [  222.448776][ T1682] Modules linked in: ip_gre gre
[  222.449781][ T1682] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 222.450204][ T1682] 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) 
[ 222.450910][ T1682] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  222.452076][ T1682] RSP: 0018:ffffc90004167000 EFLAGS: 00010246
[  222.452486][ T1682] RAX: 0000000000000000 RBX: ffff88800e3f9000 RCX: 0000000000000001
[  222.452970][ T1682] RDX: 0000000000000000 RSI: ffffffff84f10759 RDI: ffffffff84658280
[  222.453464][ T1682] RBP: ffffc900041670e8 R08: ffff88800e3f9218 R09: 0000000000000000
[  222.453949][ T1682] R10: ffffc90004167118 R11: ffff8880076245f0 R12: 1ffff9200082ce04
[  222.454429][ T1682] R13: 000000000000ffe7 R14: ffffc90004167118 R15: ffff88800e3f9218
[  222.454926][ T1682] FS:  00007f8918d0a800(0000) GS:ffff8880e5999000(0000) knlGS:0000000000000000
[  222.455496][ T1682] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  222.455892][ T1682] CR2: 00007ff74af28e10 CR3: 000000000def5005 CR4: 0000000000772ef0
[  222.456380][ T1682] PKRU: 55555554
[  222.456618][ T1682] Call Trace:
[  222.456861][ T1682]  <TASK>
[ 222.457028][ T1682] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 222.457444][ T1682] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 222.457780][ T1682] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 222.458106][ T1682] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 222.458447][ T1682] netif_set_mtu (net/core/dev.c:9652) 
[ 222.458772][ T1682] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 222.459115][ T1682] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 222.459366][ T1682] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 222.459685][ T1682] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 222.460016][ T1682] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 222.460345][ T1682] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 222.460746][ T1682] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 222.461088][ T1682] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 222.461416][ T1682] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 222.461743][ T1682] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 222.462077][ T1682] ? __dev_get_by_name (net/core/dev.c:865) 
[ 222.462404][ T1682] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 222.462726][ T1682] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 222.463053][ T1682] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 222.463380][ T1682] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 222.463710][ T1682] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 222.464055][ T1682] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 222.464390][ T1682] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 222.464715][ T1682] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 222.465033][ T1682] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 222.465374][ T1682] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 222.465691][ T1682] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 222.466009][ T1682] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 222.466358][ T1682] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 222.466684][ T1682] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 222.467005][ T1682] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 222.467341][ T1682] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 222.467668][ T1682] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 222.467991][ T1682] ? 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) 
[ 222.468313][ T1682] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 222.468628][ T1682] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 222.468945][ T1682] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 222.469267][ T1682] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 222.469589][ T1682] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 222.469907][ T1682] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 222.470255][ T1682] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 222.470586][ T1682] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 222.470897][ T1682] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 222.471335][ T1682] ___sys_sendmsg (net/socket.c:2670) 
[ 222.471655][ T1682] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 222.471976][ T1682] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 222.472312][ T1682] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 222.472624][ T1682] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 222.472947][ T1682] ? __handle_mm_fault (mm/memory.c:6212) 
[ 222.473264][ T1682] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 222.473580][ T1682] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 222.473946][ T1682] __sys_sendmsg (net/socket.c:2700) 
[ 222.474270][ T1682] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 222.474589][ T1682] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 222.474934][ T1682] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 222.475267][ T1682] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 222.475586][ T1682] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 222.475911][ T1682] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  222.476309][ T1682] RIP: 0033:0x7f8918ed71e7
[ 222.476646][ T1682] Code: Unable to access opcode bytes at 0x7f8918ed71bd.

Code starting with the faulting instruction
===========================================
[  222.477046][ T1682] RSP: 002b:00007ffec24684f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  222.477534][ T1682] RAX: ffffffffffffffda RBX: 00007ffec2468c20 RCX: 00007f8918ed71e7
[  222.478008][ T1682] RDX: 0000000000000000 RSI: 00007ffec2468560 RDI: 0000000000000005
[  222.478500][ T1682] RBP: 0000000000000004 R08: 00000000000000b4 R09: 0000000000000000
[  222.478991][ T1682] R10: 00007f8918dcf6f8 R11: 0000000000000246 R12: 00007ffec2468c50
[  222.479497][ T1682] R13: 00000000686e4a4b R14: 0000000000499600 R15: 00007ffec2468650
| [  224.033052][ T1706] ------------[ cut here ]------------
| [ 224.033423][ T1706] WARNING: CPU: 0 PID: 1706 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) 
| [  224.034052][ T1706] Modules linked in: ip_gre gre
| [  224.035814][ T1706] Tainted: [W]=WARN
[  224.036061][ T1706] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 224.036456][ T1706] 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) 
[ 224.036776][ T1706] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  224.037885][ T1706] RSP: 0018:ffffc90004107000 EFLAGS: 00010246
[  224.038296][ T1706] RAX: 0000000000000000 RBX: ffff88800890c000 RCX: 0000000000000001
[  224.038783][ T1706] RDX: 0000000000000000 RSI: ffffffff84f10759 RDI: ffffffff84658280
[  224.039255][ T1706] RBP: ffffc900041070e8 R08: ffff88800890c218 R09: 0000000000000000
[  224.039717][ T1706] R10: ffffc90004107118 R11: ffffffff8189be78 R12: 1ffff92000820e04
[  224.040194][ T1706] R13: 000000000000ffe7 R14: ffffc90004107118 R15: ffff88800890c218
[  224.040657][ T1706] FS:  00007fe0751ac800(0000) GS:ffff8880e5999000(0000) knlGS:0000000000000000
[  224.041201][ T1706] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  224.041590][ T1706] CR2: 0000000000436890 CR3: 0000000011217005 CR4: 0000000000772ef0
[  224.042061][ T1706] PKRU: 55555554
[  224.042317][ T1706] Call Trace:
[  224.042551][ T1706]  <TASK>
[ 224.042709][ T1706] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 224.043103][ T1706] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 224.043417][ T1706] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 224.043729][ T1706] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 224.044064][ T1706] netif_set_mtu (net/core/dev.c:9652) 
[ 224.044417][ T1706] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 224.044749][ T1706] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 224.044985][ T1706] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 224.045311][ T1706] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 224.045629][ T1706] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 224.045942][ T1706] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 224.046340][ T1706] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 224.046668][ T1706] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 224.046981][ T1706] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 224.047305][ T1706] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 224.047616][ T1706] ? __dev_get_by_name (net/core/dev.c:865) 
[ 224.047923][ T1706] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 224.048242][ T1706] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 224.048555][ T1706] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 224.048862][ T1706] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 224.049196][ T1706] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 224.049516][ T1706] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 224.049829][ T1706] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 224.050175][ T1706] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 224.050485][ T1706] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 224.050793][ T1706] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 224.051110][ T1706] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 224.051428][ T1706] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 224.051741][ T1706] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 224.052058][ T1706] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 224.052384][ T1706] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 224.052693][ T1706] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 224.053010][ T1706] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 224.053325][ T1706] ? 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) 
[ 224.053642][ T1706] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 224.053964][ T1706] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 224.054300][ T1706] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 224.054621][ T1706] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 224.054938][ T1706] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 224.055259][ T1706] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 224.055576][ T1706] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 224.055887][ T1706] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 224.056212][ T1706] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 224.056613][ T1706] ___sys_sendmsg (net/socket.c:2670) 
[ 224.056925][ T1706] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 224.057247][ T1706] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 224.057558][ T1706] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 224.057863][ T1706] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 224.058205][ T1706] ? __handle_mm_fault (mm/memory.c:6212) 
[ 224.058515][ T1706] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 224.058818][ T1706] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 224.059159][ T1706] __sys_sendmsg (net/socket.c:2700) 
[ 224.059468][ T1706] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 224.059772][ T1706] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 224.060105][ T1706] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 224.060422][ T1706] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 224.060734][ T1706] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 224.061046][ T1706] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  224.061441][ T1706] RIP: 0033:0x7fe0753791e7
[ 224.061759][ T1706] 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)
[  224.062918][ T1706] RSP: 002b:00007ffea221fc18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  224.063410][ T1706] RAX: ffffffffffffffda RBX: 00007ffea2220340 RCX: 00007fe0753791e7
[  224.063901][ T1706] RDX: 0000000000000000 RSI: 00007ffea221fc80 RDI: 0000000000000005
[  224.064385][ T1706] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[  224.064857][ T1706] R10: 00007fe0752716f8 R11: 0000000000000246 R12: 00007ffea2220370
[  224.065342][ T1706] R13: 00000000686e4a4d R14: 0000000000499600 R15: 00007ffea221fd70
| [  225.573378][ T1722] ------------[ cut here ]------------
| [ 225.573735][ T1722] WARNING: CPU: 3 PID: 1722 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) 
| [  225.574359][ T1722] Modules linked in: ip_gre gre
| [  225.575310][ T1722] Tainted: [W]=WARN
[  225.575545][ T1722] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 225.575931][ T1722] 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) 
[ 225.576254][ T1722] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  225.577364][ T1722] RSP: 0018:ffffc900006a7000 EFLAGS: 00010246
[  225.577751][ T1722] RAX: 0000000000000000 RBX: ffff88800b294000 RCX: 0000000000000001
[  225.578214][ T1722] RDX: 0000000000000000 RSI: ffffffff84f10759 RDI: ffffffff84658280
[  225.578680][ T1722] RBP: ffffc900006a70e8 R08: ffff88800b294218 R09: 0000000000000000
[  225.579207][ T1722] R10: ffffc900006a7118 R11: ffff88800b294000 R12: 1ffff920000d4e04
[  225.579679][ T1722] R13: 00000000000005c4 R14: ffffc900006a7118 R15: ffff88800b294218
[  225.580155][ T1722] FS:  00007fc78d802800(0000) GS:ffff8880e5b19000(0000) knlGS:0000000000000000
[  225.580717][ T1722] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  225.581125][ T1722] CR2: 0000000000436890 CR3: 00000000097e2005 CR4: 0000000000772ef0
[  225.581594][ T1722] PKRU: 55555554
[  225.581830][ T1722] Call Trace:
[  225.582062][ T1722]  <TASK>
[ 225.582229][ T1722] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 225.582546][ T1722] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 225.582857][ T1722] ? packet_notifier (net/packet/af_packet.c:4286) 
[ 225.583202][ T1722] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 225.583513][ T1722] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 225.583845][ T1722] netif_set_mtu (net/core/dev.c:9652) 
[ 225.584183][ T1722] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 225.584498][ T1722] ? __pfx_register_netdevice (net/core/dev.c:11036) 
[ 225.584813][ T1722] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 225.585060][ T1722] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 225.585400][ T1722] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 225.585736][ T1722] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 225.586091][ T1722] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 225.586479][ T1722] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 225.586801][ T1722] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 225.587121][ T1722] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 225.587436][ T1722] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 225.587744][ T1722] ? __dev_get_by_name (net/core/dev.c:865) 
[ 225.588057][ T1722] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 225.588374][ T1722] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 225.588689][ T1722] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 225.588993][ T1722] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 225.589319][ T1722] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 225.589663][ T1722] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 225.589982][ T1722] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 225.590336][ T1722] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 225.590643][ T1722] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 225.590951][ T1722] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 225.591266][ T1722] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 225.591581][ T1722] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 225.591897][ T1722] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 225.592235][ T1722] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 225.592543][ T1722] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 225.592859][ T1722] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 225.593194][ T1722] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 225.593529][ T1722] ? 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) 
[ 225.593850][ T1722] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 225.594169][ T1722] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 225.594478][ T1722] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 225.594791][ T1722] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 225.595112][ T1722] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 225.595442][ T1722] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 225.595774][ T1722] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 225.596093][ T1722] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 225.596429][ T1722] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 225.596819][ T1722] ___sys_sendmsg (net/socket.c:2670) 
[ 225.597137][ T1722] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 225.597444][ T1722] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 225.597758][ T1722] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 225.598062][ T1722] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 225.598386][ T1722] ? __handle_mm_fault (mm/memory.c:6212) 
[ 225.598696][ T1722] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 225.599001][ T1722] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 225.599354][ T1722] __sys_sendmsg (net/socket.c:2700) 
[ 225.599666][ T1722] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 225.600092][ T1722] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 225.600418][ T1722] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 225.600727][ T1722] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 225.601038][ T1722] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 225.601358][ T1722] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  225.601749][ T1722] RIP: 0033:0x7fc78d9cf1e7
[ 225.602065][ T1722] 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)
[  225.603198][ T1722] RSP: 002b:00007ffc3d16b028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  225.603665][ T1722] RAX: ffffffffffffffda RBX: 00007ffc3d16b750 RCX: 00007fc78d9cf1e7
[  225.604151][ T1722] RDX: 0000000000000000 RSI: 00007ffc3d16b090 RDI: 0000000000000005
[  225.604613][ T1722] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[  225.605097][ T1722] R10: 00007fc78d8c76f8 R11: 0000000000000246 R12: 00007ffc3d16b780
[  225.605555][ T1722] R13: 00000000686e4a4f R14: 0000000000499600 R15: 00007ffc3d16b180
| [  227.188815][ T1738] ------------[ cut here ]------------
| [ 227.189183][ T1738] WARNING: CPU: 3 PID: 1738 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) 
| [  227.189802][ T1738] Modules linked in: ip_gre gre
| [  227.190766][ T1738] Tainted: [W]=WARN
[  227.191001][ T1738] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 227.191397][ T1738] 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) 
[ 227.191734][ T1738] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  227.192854][ T1738] RSP: 0018:ffffc90000777000 EFLAGS: 00010246
[  227.193287][ T1738] RAX: 0000000000000000 RBX: ffff8880077d9000 RCX: 0000000000000001
[  227.193753][ T1738] RDX: 0000000000000000 RSI: ffffffff84f10759 RDI: ffffffff84658280
[  227.194257][ T1738] RBP: ffffc900007770e8 R08: ffff8880077d9218 R09: 0000000000000000
[  227.194719][ T1738] R10: ffffc90000777118 R11: ffff8880076245f0 R12: 1ffff920000eee04
[  227.195216][ T1738] R13: 000000000000ffe7 R14: ffffc90000777118 R15: ffff8880077d9218
[  227.195682][ T1738] FS:  00007fcc521fb800(0000) GS:ffff8880e5b19000(0000) knlGS:0000000000000000
[  227.196228][ T1738] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  227.196613][ T1738] CR2: 0000000000436890 CR3: 0000000008cd0003 CR4: 0000000000772ef0
[  227.197089][ T1738] PKRU: 55555554
[  227.197320][ T1738] Call Trace:
[  227.197549][ T1738]  <TASK>
[ 227.197711][ T1738] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 227.198136][ T1738] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 227.198447][ T1738] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 227.198755][ T1738] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 227.199083][ T1738] netif_set_mtu (net/core/dev.c:9652) 
[ 227.199389][ T1738] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 227.199710][ T1738] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 227.199948][ T1738] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 227.200268][ T1738] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 227.200608][ T1738] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 227.200918][ T1738] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 227.201310][ T1738] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 227.201625][ T1738] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 227.201958][ T1738] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 227.202282][ T1738] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 227.202585][ T1738] ? __dev_get_by_name (net/core/dev.c:865) 
[ 227.202891][ T1738] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 227.203207][ T1738] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 227.203521][ T1738] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 227.203837][ T1738] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 227.204162][ T1738] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 227.204481][ T1738] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 227.204800][ T1738] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 227.205147][ T1738] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 227.205451][ T1738] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 227.205759][ T1738] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 227.206062][ T1738] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 227.206380][ T1738] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 227.206689][ T1738] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 227.207005][ T1738] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 227.207361][ T1738] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 227.207688][ T1738] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 227.208005][ T1738] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 227.208320][ T1738] ? 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) 
[ 227.208631][ T1738] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 227.208940][ T1738] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 227.209262][ T1738] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 227.209573][ T1738] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 227.209883][ T1738] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 227.210199][ T1738] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 227.210532][ T1738] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 227.210841][ T1738] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 227.211156][ T1738] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 227.211554][ T1738] ___sys_sendmsg (net/socket.c:2670) 
[ 227.211860][ T1738] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 227.212178][ T1738] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 227.212488][ T1738] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 227.212790][ T1738] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 227.213110][ T1738] ? __handle_mm_fault (mm/memory.c:6212) 
[ 227.213413][ T1738] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 227.213723][ T1738] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 227.214057][ T1738] __sys_sendmsg (net/socket.c:2700) 
[ 227.214375][ T1738] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 227.214682][ T1738] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 227.214997][ T1738] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 227.215318][ T1738] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 227.215633][ T1738] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 227.215946][ T1738] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  227.216344][ T1738] RIP: 0033:0x7fcc523c81e7
[ 227.216666][ T1738] 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)
[  227.217783][ T1738] RSP: 002b:00007fffd3aa7228 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  227.218257][ T1738] RAX: ffffffffffffffda RBX: 00007fffd3aa7950 RCX: 00007fcc523c81e7
[  227.218716][ T1738] RDX: 0000000000000000 RSI: 00007fffd3aa7290 RDI: 0000000000000005
[  227.219184][ T1738] RBP: 0000000000000004 R08: 00000000000000b4 R09: 0000000000000000
[  227.219644][ T1738] R10: 00007fcc522c06f8 R11: 0000000000000246 R12: 00007fffd3aa7980
[  227.220121][ T1738] R13: 00000000686e4a50 R14: 0000000000499600 R15: 00007fffd3aa7380
| [  228.819779][ T1754] ------------[ cut here ]------------
| [ 228.820210][ T1754] WARNING: CPU: 3 PID: 1754 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) 
| [  228.820849][ T1754] Modules linked in: ip_gre gre
| [  228.821888][ T1754] Tainted: [W]=WARN
[  228.822171][ T1754] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 228.822574][ T1754] 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) 
[ 228.822911][ T1754] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  228.824126][ T1754] RSP: 0018:ffffc90000867000 EFLAGS: 00010246
[  228.824540][ T1754] RAX: 0000000000000000 RBX: ffff88800a701000 RCX: 0000000000000001
[  228.825025][ T1754] RDX: 0000000000000000 RSI: ffffffff84f10759 RDI: ffffffff84658280
[  228.825529][ T1754] RBP: ffffc900008670e8 R08: ffff88800a701218 R09: 0000000000000000
[  228.826010][ T1754] R10: ffffc90000867118 R11: ffffffff8598d1e0 R12: 1ffff9200010ce04
[  228.826520][ T1754] R13: 000000000000ffe7 R14: ffffc90000867118 R15: ffff88800a701218
[  228.827015][ T1754] FS:  00007f6fb2ecd800(0000) GS:ffff8880e5b19000(0000) knlGS:0000000000000000
[  228.827602][ T1754] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  228.828007][ T1754] CR2: 0000000000436890 CR3: 000000000aca2002 CR4: 0000000000772ef0
[  228.828520][ T1754] PKRU: 55555554
[  228.828761][ T1754] Call Trace:
[  228.829007][ T1754]  <TASK>
[ 228.829208][ T1754] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 228.829616][ T1754] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 228.829940][ T1754] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 228.830283][ T1754] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 228.830614][ T1754] netif_set_mtu (net/core/dev.c:9652) 
[ 228.830943][ T1754] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 228.831299][ T1754] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 228.831550][ T1754] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 228.831878][ T1754] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 228.832229][ T1754] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 228.832558][ T1754] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 228.832963][ T1754] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 228.833328][ T1754] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 228.833659][ T1754] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 228.833995][ T1754] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 228.834337][ T1754] ? __dev_get_by_name (net/core/dev.c:865) 
[ 228.834664][ T1754] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 228.834987][ T1754] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 228.835343][ T1754] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 228.835666][ T1754] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 228.836005][ T1754] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 228.836366][ T1754] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 228.836697][ T1754] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 228.837030][ T1754] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 228.837379][ T1754] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 228.837707][ T1754] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 228.838031][ T1754] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 228.838394][ T1754] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 228.838722][ T1754] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 228.839050][ T1754] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 228.839404][ T1754] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 228.839732][ T1754] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 228.840088][ T1754] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 228.840418][ T1754] ? 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) 
[ 228.840751][ T1754] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 228.841101][ T1754] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 228.841436][ T1754] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 228.841766][ T1754] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 228.842114][ T1754] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 228.842442][ T1754] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 228.842775][ T1754] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 228.843124][ T1754] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 228.843456][ T1754] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 228.843882][ T1754] ___sys_sendmsg (net/socket.c:2670) 
[ 228.844231][ T1754] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 228.844556][ T1754] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 228.844882][ T1754] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 228.845239][ T1754] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 228.845576][ T1754] ? __handle_mm_fault (mm/memory.c:6212) 
[ 228.845896][ T1754] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 228.846240][ T1754] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 228.846583][ T1754] __sys_sendmsg (net/socket.c:2700) 
[ 228.846903][ T1754] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 228.847244][ T1754] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 228.847577][ T1754] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 228.847907][ T1754] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 228.848252][ T1754] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 228.848577][ T1754] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  228.848980][ T1754] RIP: 0033:0x7f6fb309a1e7
[ 228.849345][ T1754] 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)
[  228.850524][ T1754] RSP: 002b:00007ffde9243bb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  228.851007][ T1754] RAX: ffffffffffffffda RBX: 00007ffde92442e0 RCX: 00007f6fb309a1e7
[  228.851508][ T1754] RDX: 0000000000000000 RSI: 00007ffde9243c20 RDI: 0000000000000005
[  228.851989][ T1754] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[  228.852502][ T1754] R10: 00007f6fb2f926f8 R11: 0000000000000246 R12: 00007ffde9244310
[  228.852987][ T1754] R13: 00000000686e4a52 R14: 0000000000499600 R15: 00007ffde9243d10
| [  230.409408][ T1770] ------------[ cut here ]------------
| [ 230.409772][ T1770] WARNING: CPU: 3 PID: 1770 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) 
| [  230.410398][ T1770] Modules linked in: ip_gre gre
| [  230.411387][ T1770] Tainted: [W]=WARN
[  230.411623][ T1770] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 230.412013][ T1770] 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) 
[ 230.412340][ T1770] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  230.413448][ T1770] RSP: 0018:ffffc90000947000 EFLAGS: 00010246
[  230.413853][ T1770] RAX: 0000000000000000 RBX: ffff888010c39000 RCX: 0000000000000001
[  230.414342][ T1770] RDX: 0000000000000000 RSI: ffffffff84f10759 RDI: ffffffff84658280
[  230.414821][ T1770] RBP: ffffc900009470e8 R08: ffff888010c39218 R09: 0000000000000000
[  230.415343][ T1770] R10: ffffc90000947118 R11: ffff888010c39000 R12: 1ffff92000128e04
[  230.415810][ T1770] R13: 00000000000005c4 R14: ffffc90000947118 R15: ffff888010c39218
[  230.416290][ T1770] FS:  00007f15212d2800(0000) GS:ffff8880e5b19000(0000) knlGS:0000000000000000
[  230.416846][ T1770] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  230.417375][ T1770] CR2: 0000000000436890 CR3: 000000000b048006 CR4: 0000000000772ef0
[  230.417862][ T1770] PKRU: 55555554
[  230.418117][ T1770] Call Trace:
[  230.418362][ T1770]  <TASK>
[ 230.418520][ T1770] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 230.418838][ T1770] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 230.419171][ T1770] ? packet_notifier (net/packet/af_packet.c:4286) 
[ 230.419487][ T1770] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 230.419799][ T1770] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 230.420133][ T1770] netif_set_mtu (net/core/dev.c:9652) 
[ 230.420444][ T1770] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 230.420764][ T1770] ? __pfx_register_netdevice (net/core/dev.c:11036) 
[ 230.421107][ T1770] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 230.421347][ T1770] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 230.421663][ T1770] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 230.421980][ T1770] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 230.422305][ T1770] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 230.422696][ T1770] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 230.423017][ T1770] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 230.423355][ T1770] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 230.423680][ T1770] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 230.424044][ T1770] ? __dev_get_by_name (net/core/dev.c:865) 
[ 230.424381][ T1770] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 230.424706][ T1770] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 230.425021][ T1770] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 230.425338][ T1770] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 230.425659][ T1770] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 230.425991][ T1770] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 230.426335][ T1770] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 230.426666][ T1770] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 230.426979][ T1770] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 230.427311][ T1770] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 230.427640][ T1770] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 230.427952][ T1770] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 230.428292][ T1770] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 230.428606][ T1770] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 230.428910][ T1770] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 230.429232][ T1770] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 230.429550][ T1770] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 230.429870][ T1770] ? 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) 
[ 230.430186][ T1770] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 230.430500][ T1770] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 230.430809][ T1770] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 230.431145][ T1770] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 230.431457][ T1770] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 230.431768][ T1770] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 230.432101][ T1770] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 230.432428][ T1770] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 230.432733][ T1770] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 230.433151][ T1770] ___sys_sendmsg (net/socket.c:2670) 
[ 230.433468][ T1770] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 230.433785][ T1770] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 230.434132][ T1770] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 230.434437][ T1770] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 230.434746][ T1770] ? __handle_mm_fault (mm/memory.c:6212) 
[ 230.435066][ T1770] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 230.435442][ T1770] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 230.435769][ T1770] __sys_sendmsg (net/socket.c:2700) 
[ 230.436095][ T1770] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 230.436401][ T1770] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 230.436757][ T1770] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 230.437095][ T1770] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 230.437419][ T1770] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 230.437739][ T1770] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  230.438177][ T1770] RIP: 0033:0x7f152149f1e7
[ 230.438514][ T1770] 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)
[  230.439664][ T1770] RSP: 002b:00007fff8de8aee8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  230.440139][ T1770] RAX: ffffffffffffffda RBX: 00007fff8de8b610 RCX: 00007f152149f1e7
[  230.440604][ T1770] RDX: 0000000000000000 RSI: 00007fff8de8af50 RDI: 0000000000000005
[  230.441064][ T1770] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[  230.441537][ T1770] R10: 00007f15213976f8 R11: 0000000000000246 R12: 00007fff8de8b640
[  230.442014][ T1770] R13: 00000000686e4a53 R14: 0000000000499600 R15: 00007fff8de8b040
| [  231.942128][ T1786] ------------[ cut here ]------------
| [ 231.942496][ T1786] WARNING: CPU: 0 PID: 1786 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) 
| [  231.943117][ T1786] Modules linked in: ip_gre gre
| [  231.944104][ T1786] Tainted: [W]=WARN
[  231.944337][ T1786] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 231.944737][ T1786] 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) 
[ 231.945059][ T1786] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  231.946180][ T1786] RSP: 0018:ffffc900005d7000 EFLAGS: 00010246
[  231.946577][ T1786] RAX: 0000000000000000 RBX: ffff888007669000 RCX: 0000000000000001
[  231.947038][ T1786] RDX: 0000000000000000 RSI: ffffffff84f10759 RDI: ffffffff84658280
[  231.947522][ T1786] RBP: ffffc900005d70e8 R08: ffff888007669218 R09: 0000000000000000
[  231.947983][ T1786] R10: ffffc900005d7118 R11: ffffffff8598d1e0 R12: 1ffff920000bae04
[  231.948447][ T1786] R13: 000000000000ffe7 R14: ffffc900005d7118 R15: ffff888007669218
[  231.948908][ T1786] FS:  00007f21019f8800(0000) GS:ffff8880e5999000(0000) knlGS:0000000000000000
[  231.949458][ T1786] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  231.949852][ T1786] CR2: 0000000000436890 CR3: 00000000112c0004 CR4: 0000000000772ef0
[  231.950319][ T1786] PKRU: 55555554
[  231.950552][ T1786] Call Trace:
[  231.950789][ T1786]  <TASK>
[ 231.950944][ T1786] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 231.951343][ T1786] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 231.951659][ T1786] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 231.951980][ T1786] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 231.952304][ T1786] netif_set_mtu (net/core/dev.c:9652) 
[ 231.952613][ T1786] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 231.952946][ T1786] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 231.953187][ T1786] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 231.953495][ T1786] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 231.953820][ T1786] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 231.954145][ T1786] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 231.954527][ T1786] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 231.954853][ T1786] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 231.955172][ T1786] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 231.955484][ T1786] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 231.955794][ T1786] ? __dev_get_by_name (net/core/dev.c:865) 
[ 231.956108][ T1786] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 231.956414][ T1786] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 231.956724][ T1786] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 231.957027][ T1786] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 231.957350][ T1786] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 231.957666][ T1786] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 231.957977][ T1786] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 231.958322][ T1786] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 231.958625][ T1786] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 231.958931][ T1786] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 231.959244][ T1786] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 231.959556][ T1786] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 231.959866][ T1786] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 231.960188][ T1786] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 231.960496][ T1786] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 231.960811][ T1786] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 231.961154][ T1786] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 231.961462][ T1786] ? 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) 
[ 231.961767][ T1786] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 231.962087][ T1786] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 231.962394][ T1786] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 231.962706][ T1786] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 231.963021][ T1786] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 231.963335][ T1786] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 231.963649][ T1786] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 231.963968][ T1786] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 231.964286][ T1786] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 231.964680][ T1786] ___sys_sendmsg (net/socket.c:2670) 
[ 231.964991][ T1786] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 231.965316][ T1786] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 231.965624][ T1786] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 231.965925][ T1786] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 231.966246][ T1786] ? __handle_mm_fault (mm/memory.c:6212) 
[ 231.966552][ T1786] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 231.966855][ T1786] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 231.967198][ T1786] __sys_sendmsg (net/socket.c:2700) 
[ 231.967505][ T1786] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 231.967811][ T1786] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 231.968133][ T1786] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 231.968448][ T1786] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 231.968755][ T1786] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 231.969082][ T1786] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  231.969477][ T1786] RIP: 0033:0x7f2101bc51e7
[ 231.969794][ T1786] 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)
[  231.970892][ T1786] RSP: 002b:00007fff8738a988 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  231.971380][ T1786] RAX: ffffffffffffffda RBX: 00007fff8738b0b0 RCX: 00007f2101bc51e7
[  231.971847][ T1786] RDX: 0000000000000000 RSI: 00007fff8738a9f0 RDI: 0000000000000005
[  231.972320][ T1786] RBP: 0000000000000004 R08: 00000000000000b4 R09: 0000000000000000
[  231.972780][ T1786] R10: 00007f2101abd6f8 R11: 0000000000000246 R12: 00007fff8738b0e0
[  231.973245][ T1786] R13: 00000000686e4a55 R14: 0000000000499600 R15: 00007fff8738aae0
| [  233.619718][ T1803] ------------[ cut here ]------------
| [ 233.621641][ T1803] WARNING: CPU: 3 PID: 1803 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) 
| [  233.622382][ T1803] Modules linked in: ip_gre gre
| [  233.623387][ T1803] Tainted: [W]=WARN
[  233.623630][ T1803] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 233.624033][ T1803] 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) 
[ 233.624373][ T1803] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  233.625515][ T1803] RSP: 0018:ffffc90000ac7000 EFLAGS: 00010246
[  233.625921][ T1803] RAX: 0000000000000000 RBX: ffff88800ada9000 RCX: 0000000000000001
[  233.626418][ T1803] RDX: 0000000000000000 RSI: ffffffff84f10759 RDI: ffffffff84658280
[  233.626898][ T1803] RBP: ffffc90000ac70e8 R08: ffff88800ada9218 R09: 0000000000000000
[  233.627391][ T1803] R10: ffffc90000ac7118 R11: ffffffff8598d1e0 R12: 1ffff92000158e04
[  233.627870][ T1803] R13: 000000000000ffe7 R14: ffffc90000ac7118 R15: ffff88800ada9218
[  233.628368][ T1803] FS:  00007f3169902800(0000) GS:ffff8880e5b19000(0000) knlGS:0000000000000000
[  233.628923][ T1803] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  233.629336][ T1803] CR2: 0000000000436890 CR3: 0000000011163005 CR4: 0000000000772ef0
[  233.629816][ T1803] PKRU: 55555554
[  233.630055][ T1803] Call Trace:
[  233.630311][ T1803]  <TASK>
[ 233.630474][ T1803] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 233.630871][ T1803] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 233.631209][ T1803] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 233.631527][ T1803] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 233.631856][ T1803] netif_set_mtu (net/core/dev.c:9652) 
[ 233.632185][ T1803] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 233.632525][ T1803] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 233.632768][ T1803] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 233.633103][ T1803] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 233.633429][ T1803] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 233.633751][ T1803] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 233.634179][ T1803] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 233.634517][ T1803] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 233.634837][ T1803] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 233.635171][ T1803] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 233.635488][ T1803] ? __dev_get_by_name (net/core/dev.c:865) 
[ 233.635812][ T1803] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 233.636156][ T1803] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 233.636489][ T1803] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 233.636804][ T1803] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 233.637143][ T1803] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 233.637474][ T1803] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 233.637830][ T1803] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 233.638185][ T1803] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 233.638506][ T1803] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 233.638830][ T1803] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 233.639165][ T1803] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 233.639485][ T1803] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 233.639809][ T1803] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 233.640150][ T1803] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 233.640470][ T1803] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 233.640791][ T1803] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 233.641139][ T1803] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 233.641462][ T1803] ? 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) 
[ 233.641780][ T1803] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 233.642115][ T1803] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 233.642433][ T1803] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 233.642755][ T1803] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 233.643091][ T1803] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 233.643413][ T1803] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 233.643740][ T1803] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 233.644103][ T1803] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 233.644430][ T1803] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 233.644835][ T1803] ___sys_sendmsg (net/socket.c:2670) 
[ 233.645168][ T1803] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 233.645485][ T1803] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 233.645807][ T1803] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 233.646135][ T1803] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 233.646486][ T1803] ? __handle_mm_fault (mm/memory.c:6212) 
[ 233.646803][ T1803] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 233.647133][ T1803] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 233.647473][ T1803] __sys_sendmsg (net/socket.c:2700) 
[ 233.647793][ T1803] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 233.648120][ T1803] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 233.648450][ T1803] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 233.648774][ T1803] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 233.649109][ T1803] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 233.649433][ T1803] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  233.649827][ T1803] RIP: 0033:0x7f3169acf1e7
[ 233.650170][ T1803] 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)
[  233.651323][ T1803] RSP: 002b:00007ffd0e7aca58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  233.651805][ T1803] RAX: ffffffffffffffda RBX: 00007ffd0e7ad180 RCX: 00007f3169acf1e7
[  233.652294][ T1803] RDX: 0000000000000000 RSI: 00007ffd0e7acac0 RDI: 0000000000000005
[  233.652781][ T1803] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[  233.653271][ T1803] R10: 00007f31699c76f8 R11: 0000000000000246 R12: 00007ffd0e7ad1b0
[  233.653748][ T1803] R13: 00000000686e4a57 R14: 0000000000499600 R15: 00007ffd0e7acbb0
| [  235.354112][ T1820] ------------[ cut here ]------------
| [ 235.354489][ T1820] WARNING: CPU: 2 PID: 1820 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) 
| [  235.355152][ T1820] Modules linked in: ip_gre gre
| [  235.356144][ T1820] Tainted: [W]=WARN
[  235.356395][ T1820] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 235.356791][ T1820] 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) 
[ 235.357132][ T1820] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  235.358248][ T1820] RSP: 0018:ffffc90000b57000 EFLAGS: 00010246
[  235.358648][ T1820] RAX: 0000000000000000 RBX: ffff88800ac2c000 RCX: 0000000000000001
[  235.359146][ T1820] RDX: 0000000000000000 RSI: ffffffff84f10759 RDI: ffffffff84658280
[  235.359636][ T1820] RBP: ffffc90000b570e8 R08: ffff88800ac2c218 R09: 0000000000000000
[  235.360116][ T1820] R10: ffffc90000b57118 R11: ffff88800ac2c000 R12: 1ffff9200016ae04
[  235.360583][ T1820] R13: 00000000000005c4 R14: ffffc90000b57118 R15: ffff88800ac2c218
[  235.361047][ T1820] FS:  00007f9e43ae2800(0000) GS:ffff8880e5a99000(0000) knlGS:0000000000000000
[  235.361608][ T1820] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  235.362006][ T1820] CR2: 0000000000436890 CR3: 0000000010b34006 CR4: 0000000000772ef0
[  235.362489][ T1820] PKRU: 55555554
[  235.362732][ T1820] Call Trace:
[  235.362970][ T1820]  <TASK>
[ 235.363176][ T1820] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 235.363501][ T1820] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 235.363828][ T1820] ? packet_notifier (net/packet/af_packet.c:4286) 
[ 235.364169][ T1820] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 235.364491][ T1820] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 235.364815][ T1820] netif_set_mtu (net/core/dev.c:9652) 
[ 235.365144][ T1820] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 235.365470][ T1820] ? __pfx_register_netdevice (net/core/dev.c:11036) 
[ 235.365793][ T1820] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 235.366038][ T1820] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 235.366375][ T1820] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 235.366701][ T1820] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 235.367023][ T1820] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 235.367436][ T1820] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 235.367772][ T1820] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 235.368136][ T1820] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 235.368493][ T1820] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 235.368809][ T1820] ? __dev_get_by_name (net/core/dev.c:865) 
[ 235.369141][ T1820] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 235.369457][ T1820] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 235.369788][ T1820] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 235.370138][ T1820] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 235.370463][ T1820] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 235.370791][ T1820] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 235.371141][ T1820] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 235.371480][ T1820] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 235.371792][ T1820] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 235.372122][ T1820] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 235.372446][ T1820] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 235.372768][ T1820] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 235.373100][ T1820] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 235.373427][ T1820] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 235.373774][ T1820] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 235.374106][ T1820] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 235.374433][ T1820] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 235.374752][ T1820] ? 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) 
[ 235.375089][ T1820] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 235.375413][ T1820] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 235.375735][ T1820] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 235.376062][ T1820] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 235.376398][ T1820] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 235.376718][ T1820] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 235.377046][ T1820] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 235.377375][ T1820] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 235.377688][ T1820] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 235.378101][ T1820] ___sys_sendmsg (net/socket.c:2670) 
[ 235.378424][ T1820] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 235.378742][ T1820] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 235.379059][ T1820] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 235.379393][ T1820] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 235.379714][ T1820] ? __handle_mm_fault (mm/memory.c:6212) 
[ 235.380031][ T1820] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 235.380361][ T1820] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 235.380705][ T1820] __sys_sendmsg (net/socket.c:2700) 
[ 235.381025][ T1820] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 235.381352][ T1820] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 235.381674][ T1820] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 235.381996][ T1820] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 235.382323][ T1820] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 235.382648][ T1820] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  235.383037][ T1820] RIP: 0033:0x7f9e43caf1e7
[ 235.383384][ T1820] 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)
[  235.384545][ T1820] RSP: 002b:00007ffdda6d8c98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  235.385025][ T1820] RAX: ffffffffffffffda RBX: 00007ffdda6d93c0 RCX: 00007f9e43caf1e7
[  235.385499][ T1820] RDX: 0000000000000000 RSI: 00007ffdda6d8d00 RDI: 0000000000000005
[  235.385964][ T1820] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[  235.386458][ T1820] R10: 00007f9e43ba76f8 R11: 0000000000000246 R12: 00007ffdda6d93f0
[  235.386930][ T1820] R13: 00000000686e4a58 R14: 0000000000499600 R15: 00007ffdda6d8df0
| [  237.041911][ T1837] ------------[ cut here ]------------
| [ 237.042752][ T1837] WARNING: CPU: 3 PID: 1837 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) 
| [  237.043370][ T1837] Modules linked in: ip_gre gre
| [  237.044340][ T1837] Tainted: [W]=WARN
[  237.044571][ T1837] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 237.044951][ T1837] 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) 
[ 237.045275][ T1837] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  237.046373][ T1837] RSP: 0018:ffffc90000c67000 EFLAGS: 00010246
[  237.046765][ T1837] RAX: 0000000000000000 RBX: ffff88800a701000 RCX: 0000000000000001
[  237.047229][ T1837] RDX: 0000000000000000 RSI: ffffffff84f10759 RDI: ffffffff84658280
[  237.047690][ T1837] RBP: ffffc90000c670e8 R08: ffff88800a701218 R09: 0000000000000000
[  237.048157][ T1837] R10: ffffc90000c67118 R11: ffffffff8598d1e0 R12: 1ffff9200018ce04
[  237.048633][ T1837] R13: 000000000000ffe7 R14: ffffc90000c67118 R15: ffff88800a701218
[  237.049100][ T1837] FS:  00007f020c357800(0000) GS:ffff8880e5b19000(0000) knlGS:0000000000000000
[  237.049640][ T1837] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  237.050040][ T1837] CR2: 0000000000436890 CR3: 000000000d73b003 CR4: 0000000000772ef0
[  237.050512][ T1837] PKRU: 55555554
[  237.050758][ T1837] Call Trace:
[  237.050989][ T1837]  <TASK>
[ 237.051156][ T1837] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 237.051556][ T1837] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 237.051863][ T1837] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 237.052182][ T1837] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 237.052511][ T1837] netif_set_mtu (net/core/dev.c:9652) 
[ 237.052821][ T1837] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 237.053192][ T1837] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 237.053428][ T1837] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 237.053748][ T1837] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 237.054088][ T1837] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 237.054399][ T1837] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 237.054782][ T1837] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 237.055106][ T1837] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 237.055434][ T1837] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 237.055746][ T1837] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 237.056060][ T1837] ? __dev_get_by_name (net/core/dev.c:865) 
[ 237.056385][ T1837] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 237.056691][ T1837] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 237.057013][ T1837] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 237.057327][ T1837] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 237.057647][ T1837] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 237.057978][ T1837] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 237.058307][ T1837] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 237.058640][ T1837] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 237.058945][ T1837] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 237.059272][ T1837] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 237.059586][ T1837] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 237.059912][ T1837] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 237.060233][ T1837] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 237.060545][ T1837] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 237.060850][ T1837] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 237.061171][ T1837] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 237.061490][ T1837] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 237.061792][ T1837] ? 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) 
[ 237.062108][ T1837] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 237.062426][ T1837] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 237.062733][ T1837] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 237.063045][ T1837] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 237.063368][ T1837] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 237.063675][ T1837] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 237.064001][ T1837] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 237.064319][ T1837] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 237.064628][ T1837] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 237.065021][ T1837] ___sys_sendmsg (net/socket.c:2670) 
[ 237.065337][ T1837] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 237.065650][ T1837] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 237.066002][ T1837] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 237.066337][ T1837] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 237.066663][ T1837] ? __handle_mm_fault (mm/memory.c:6212) 
[ 237.066990][ T1837] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 237.067321][ T1837] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 237.067664][ T1837] __sys_sendmsg (net/socket.c:2700) 
[ 237.067987][ T1837] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 237.068322][ T1837] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 237.068665][ T1837] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 237.068992][ T1837] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 237.069325][ T1837] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 237.069650][ T1837] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  237.070056][ T1837] RIP: 0033:0x7f020c5241e7
[ 237.070397][ T1837] 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)
[  237.071575][ T1837] RSP: 002b:00007ffcda3070e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  237.072066][ T1837] RAX: ffffffffffffffda RBX: 00007ffcda307810 RCX: 00007f020c5241e7
[  237.072576][ T1837] RDX: 0000000000000000 RSI: 00007ffcda307150 RDI: 0000000000000005
[  237.073083][ T1837] RBP: 0000000000000004 R08: 00000000000000b4 R09: 0000000000000000
[  237.073568][ T1837] R10: 00007f020c41c6f8 R11: 0000000000000246 R12: 00007ffcda307840
[  237.074092][ T1837] R13: 00000000686e4a5a R14: 0000000000499600 R15: 00007ffcda307240
| [  238.542144][ T1853] ------------[ cut here ]------------
| [ 238.542484][ T1853] WARNING: CPU: 3 PID: 1853 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) 
| [  238.543092][ T1853] Modules linked in: ip_gre gre
| [  238.544045][ T1853] Tainted: [W]=WARN
[  238.544287][ T1853] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 238.544673][ T1853] 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) 
[ 238.544992][ T1853] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  238.546092][ T1853] RSP: 0018:ffffc90000d37000 EFLAGS: 00010246
[  238.546478][ T1853] RAX: 0000000000000000 RBX: ffff888007651000 RCX: 0000000000000001
[  238.546932][ T1853] RDX: 0000000000000000 RSI: ffffffff84f10759 RDI: ffffffff84658280
[  238.548131][ T1853] RBP: ffffc90000d370e8 R08: ffff888007651218 R09: 0000000000000000
[  238.548592][ T1853] R10: ffffc90000d37118 R11: ffffffff8598d1e0 R12: 1ffff920001a6e04
[  238.549048][ T1853] R13: 000000000000ffe7 R14: ffffc90000d37118 R15: ffff888007651218
[  238.549512][ T1853] FS:  00007f73627e6800(0000) GS:ffff8880e5b19000(0000) knlGS:0000000000000000
[  238.550042][ T1853] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  238.550435][ T1853] CR2: 0000000000436890 CR3: 0000000009245001 CR4: 0000000000772ef0
[  238.550910][ T1853] PKRU: 55555554
[  238.551148][ T1853] Call Trace:
[  238.551377][ T1853]  <TASK>
[ 238.551531][ T1853] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 238.551911][ T1853] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 238.552228][ T1853] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 238.552533][ T1853] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 238.552846][ T1853] netif_set_mtu (net/core/dev.c:9652) 
[ 238.553162][ T1853] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 238.553488][ T1853] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 238.553720][ T1853] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 238.554041][ T1853] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 238.554377][ T1853] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 238.554687][ T1853] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 238.555065][ T1853] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 238.555393][ T1853] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 238.555702][ T1853] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 238.556010][ T1853] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 238.556320][ T1853] ? __dev_get_by_name (net/core/dev.c:865) 
[ 238.556625][ T1853] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 238.556928][ T1853] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 238.557244][ T1853] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 238.557549][ T1853] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 238.557867][ T1853] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 238.558189][ T1853] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 238.558500][ T1853] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 238.558819][ T1853] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 238.559128][ T1853] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 238.559435][ T1853] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 238.559739][ T1853] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 238.560045][ T1853] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 238.560366][ T1853] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 238.560677][ T1853] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 238.560982][ T1853] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 238.561296][ T1853] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 238.561611][ T1853] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 238.561919][ T1853] ? 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) 
[ 238.562236][ T1853] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 238.562545][ T1853] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 238.562848][ T1853] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 238.563168][ T1853] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 238.563475][ T1853] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 238.563790][ T1853] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 238.564121][ T1853] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 238.564428][ T1853] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 238.564737][ T1853] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 238.565156][ T1853] ___sys_sendmsg (net/socket.c:2670) 
[ 238.565484][ T1853] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 238.565790][ T1853] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 238.566109][ T1853] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 238.566431][ T1853] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 238.566805][ T1853] ? __handle_mm_fault (mm/memory.c:6212) 
[ 238.567143][ T1853] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 238.567477][ T1853] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 238.567817][ T1853] __sys_sendmsg (net/socket.c:2700) 
[ 238.568153][ T1853] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 238.568510][ T1853] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 238.568847][ T1853] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 238.569189][ T1853] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 238.569541][ T1853] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 238.569868][ T1853] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  238.570274][ T1853] RIP: 0033:0x7f73629b31e7
[ 238.570627][ T1853] 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)
[  238.571798][ T1853] RSP: 002b:00007ffec0f5b338 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  238.572289][ T1853] RAX: ffffffffffffffda RBX: 00007ffec0f5ba60 RCX: 00007f73629b31e7
[  238.572782][ T1853] RDX: 0000000000000000 RSI: 00007ffec0f5b3a0 RDI: 0000000000000005
[  238.573270][ T1853] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[  238.573779][ T1853] R10: 00007f73628ab6f8 R11: 0000000000000246 R12: 00007ffec0f5ba90
[  238.574275][ T1853] R13: 00000000686e4a5c R14: 0000000000499600 R15: 00007ffec0f5b490
| [  239.984232][ T1869] ------------[ cut here ]------------
| [ 239.984571][ T1869] WARNING: CPU: 1 PID: 1869 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) 
| [  239.985184][ T1869] Modules linked in: ip_gre gre
| [  239.986127][ T1869] Tainted: [W]=WARN
[  239.986359][ T1869] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 239.986742][ T1869] 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) 
[ 239.987064][ T1869] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  239.988179][ T1869] RSP: 0018:ffffc900009f7000 EFLAGS: 00010246
[  239.988566][ T1869] RAX: 0000000000000000 RBX: ffff88800aa94000 RCX: 0000000000000001
[  239.989027][ T1869] RDX: 0000000000000000 RSI: ffffffff84f10759 RDI: ffffffff84658280
[  239.989492][ T1869] RBP: ffffc900009f70e8 R08: ffff88800aa94218 R09: 0000000000000000
[  239.989948][ T1869] R10: ffffc900009f7118 R11: ffff88800aa94000 R12: 1ffff9200013ee04
[  239.990409][ T1869] R13: 00000000000005c4 R14: ffffc900009f7118 R15: ffff88800aa94218
[  239.990871][ T1869] FS:  00007fbaa3c31800(0000) GS:ffff8880e5a19000(0000) knlGS:0000000000000000
[  239.991420][ T1869] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  239.991808][ T1869] CR2: 00007fbaa3d31130 CR3: 000000000abd5002 CR4: 0000000000772ef0
[  239.992275][ T1869] PKRU: 55555554
[  239.992504][ T1869] Call Trace:
[  239.992732][ T1869]  <TASK>
[ 239.992888][ T1869] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 239.993209][ T1869] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 239.993510][ T1869] ? packet_notifier (net/packet/af_packet.c:4286) 
[ 239.993824][ T1869] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 239.994144][ T1869] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 239.994456][ T1869] netif_set_mtu (net/core/dev.c:9652) 
[ 239.994761][ T1869] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 239.995097][ T1869] ? __pfx_register_netdevice (net/core/dev.c:11036) 
[ 239.995417][ T1869] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 239.995650][ T1869] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 239.995955][ T1869] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 239.996276][ T1869] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 239.996589][ T1869] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 239.996971][ T1869] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 239.997309][ T1869] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 239.997623][ T1869] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 239.997932][ T1869] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 239.998243][ T1869] ? __dev_get_by_name (net/core/dev.c:865) 
[ 239.998549][ T1869] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 239.998851][ T1869] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 239.999180][ T1869] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 239.999488][ T1869] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 239.999803][ T1869] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 240.000127][ T1869] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 240.000437][ T1869] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 240.000752][ T1869] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 240.001054][ T1869] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 240.001368][ T1869] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 240.001670][ T1869] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 240.001975][ T1869] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 240.002296][ T1869] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 240.002606][ T1869] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 240.002909][ T1869] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 240.003232][ T1869] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 240.003550][ T1869] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 240.003868][ T1869] ? 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) 
[ 240.004182][ T1869] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 240.004495][ T1869] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 240.004798][ T1869] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 240.005115][ T1869] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 240.005423][ T1869] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 240.005729][ T1869] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 240.006041][ T1869] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 240.006357][ T1869] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 240.006666][ T1869] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 240.007055][ T1869] ___sys_sendmsg (net/socket.c:2670) 
[ 240.007381][ T1869] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 240.007692][ T1869] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 240.007999][ T1869] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 240.008311][ T1869] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 240.008618][ T1869] ? __handle_mm_fault (mm/memory.c:6212) 
[ 240.008928][ T1869] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 240.009238][ T1869] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 240.009561][ T1869] __sys_sendmsg (net/socket.c:2700) 
[ 240.009869][ T1869] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 240.010184][ T1869] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 240.010497][ T1869] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 240.010809][ T1869] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 240.011132][ T1869] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 240.011444][ T1869] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  240.011819][ T1869] RIP: 0033:0x7fbaa3dfe1e7
[ 240.012142][ T1869] 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)
[  240.013238][ T1869] RSP: 002b:00007ffd760f8ae8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  240.013699][ T1869] RAX: ffffffffffffffda RBX: 00007ffd760f9210 RCX: 00007fbaa3dfe1e7
[  240.014174][ T1869] RDX: 0000000000000000 RSI: 00007ffd760f8b50 RDI: 0000000000000005
[  240.014629][ T1869] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[  240.015114][ T1869] R10: 00007fbaa3cf66f8 R11: 0000000000000246 R12: 00007ffd760f9240
[  240.015571][ T1869] R13: 00000000686e4a5d R14: 0000000000499600 R15: 00007ffd760f8c40
| [  241.447349][ T1885] ------------[ cut here ]------------
| [ 241.447724][ T1885] WARNING: CPU: 1 PID: 1885 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) 
| [  241.448375][ T1885] Modules linked in: ip_gre gre
| [  241.449358][ T1885] Tainted: [W]=WARN
[  241.449600][ T1885] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 241.450004][ T1885] 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) 
[ 241.450342][ T1885] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  241.451508][ T1885] RSP: 0018:ffffc90003a67000 EFLAGS: 00010246
[  241.451919][ T1885] RAX: 0000000000000000 RBX: ffff888007bb9000 RCX: 0000000000000001
[  241.452410][ T1885] RDX: 0000000000000000 RSI: ffffffff84f10759 RDI: ffffffff84658280
[  241.452893][ T1885] RBP: ffffc90003a670e8 R08: ffff888007bb9218 R09: 0000000000000000
[  241.453390][ T1885] R10: ffffc90003a67118 R11: ffff8880076245f0 R12: 1ffff9200074ce04
[  241.453891][ T1885] R13: 000000000000ffd9 R14: ffffc90003a67118 R15: ffff888007bb9218
[  241.454384][ T1885] FS:  00007f9005475800(0000) GS:ffff8880e5a19000(0000) knlGS:0000000000000000
[  241.454948][ T1885] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  241.455368][ T1885] CR2: 0000000000436890 CR3: 000000000c5bf004 CR4: 0000000000772ef0
[  241.455861][ T1885] PKRU: 55555554
[  241.456116][ T1885] Call Trace:
[  241.456358][ T1885]  <TASK>
[ 241.456524][ T1885] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 241.456926][ T1885] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 241.457266][ T1885] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 241.457590][ T1885] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 241.457928][ T1885] netif_set_mtu (net/core/dev.c:9652) 
[ 241.458257][ T1885] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 241.458591][ T1885] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 241.458914][ T1885] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 241.459170][ T1885] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 241.459494][ T1885] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 241.459825][ T1885] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 241.460166][ T1885] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 241.460569][ T1885] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 241.460904][ T1885] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 241.461248][ T1885] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 241.461583][ T1885] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 241.461901][ T1885] ? __dev_get_by_name (net/core/dev.c:865) 
[ 241.462235][ T1885] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 241.462561][ T1885] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 241.462890][ T1885] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 241.463224][ T1885] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 241.463558][ T1885] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 241.463900][ T1885] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 241.464240][ T1885] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 241.464578][ T1885] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 241.464900][ T1885] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 241.465242][ T1885] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 241.465565][ T1885] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 241.465891][ T1885] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 241.466228][ T1885] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 241.466556][ T1885] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 241.466877][ T1885] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 241.467227][ T1885] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 241.467567][ T1885] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 241.467896][ T1885] ? 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) 
[ 241.468231][ T1885] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 241.468556][ T1885] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 241.468879][ T1885] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 241.469219][ T1885] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 241.469545][ T1885] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 241.469868][ T1885] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 241.470204][ T1885] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 241.470529][ T1885] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 241.470851][ T1885] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 241.471275][ T1885] ___sys_sendmsg (net/socket.c:2670) 
[ 241.471604][ T1885] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 241.471926][ T1885] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 241.472264][ T1885] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 241.472594][ T1885] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 241.472921][ T1885] ? __handle_mm_fault (mm/memory.c:6212) 
[ 241.473253][ T1885] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 241.473575][ T1885] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 241.473927][ T1885] __sys_sendmsg (net/socket.c:2700) 
[ 241.474260][ T1885] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 241.474580][ T1885] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 241.474914][ T1885] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 241.475245][ T1885] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 241.475569][ T1885] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 241.475892][ T1885] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  241.476296][ T1885] RIP: 0033:0x7f90056421e7
[ 241.476628][ T1885] 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)
[  241.477788][ T1885] RSP: 002b:00007fffad143da8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  241.478283][ T1885] RAX: ffffffffffffffda RBX: 00007fffad1444d0 RCX: 00007f90056421e7
[  241.478763][ T1885] RDX: 0000000000000000 RSI: 00007fffad143e10 RDI: 0000000000000005
[  241.479256][ T1885] RBP: 0000000000000004 R08: 00000000000000b8 R09: 0000000000000000
[  241.479738][ T1885] R10: 00007f900553a6f8 R11: 0000000000000246 R12: 00007fffad144500
[  241.480233][ T1885] R13: 00000000686e4a5e R14: 0000000000499600 R15: 00007fffad143f04
| [  242.886294][ T1901] ------------[ cut here ]------------
| [ 242.886760][ T1901] WARNING: CPU: 0 PID: 1901 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) 
| [  242.888234][ T1901] Modules linked in: ip_gre gre
| [  242.889186][ T1901] Tainted: [W]=WARN
[  242.889419][ T1901] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 242.889798][ T1901] 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) 
[ 242.890118][ T1901] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  242.891291][ T1901] RSP: 0018:ffffc90000ee7000 EFLAGS: 00010246
[  242.891708][ T1901] RAX: 0000000000000000 RBX: ffff8880053f9000 RCX: 0000000000000001
[  242.892206][ T1901] RDX: 0000000000000000 RSI: ffffffff84f10759 RDI: ffffffff84658280
[  242.892691][ T1901] RBP: ffffc90000ee70e8 R08: ffff8880053f9218 R09: 0000000000000000
[  242.893188][ T1901] R10: ffffc90000ee7118 R11: ffffffff8598d1e0 R12: 1ffff920001dce04
[  242.893676][ T1901] R13: 000000000000ffd9 R14: ffffc90000ee7118 R15: ffff8880053f9218
[  242.894180][ T1901] FS:  00007f96d7250800(0000) GS:ffff8880e5999000(0000) knlGS:0000000000000000
[  242.894743][ T1901] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  242.895159][ T1901] CR2: 00007f96d7350130 CR3: 000000000baff002 CR4: 0000000000772ef0
[  242.895646][ T1901] PKRU: 55555554
[  242.895887][ T1901] Call Trace:
[  242.896135][ T1901]  <TASK>
[ 242.896297][ T1901] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 242.896699][ T1901] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 242.897024][ T1901] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 242.897359][ T1901] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 242.897690][ T1901] netif_set_mtu (net/core/dev.c:9652) 
[ 242.898014][ T1901] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 242.898356][ T1901] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 242.898680][ T1901] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 242.898922][ T1901] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 242.899262][ T1901] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 242.899595][ T1901] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 242.899921][ T1901] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 242.900338][ T1901] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 242.900669][ T1901] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 242.900995][ T1901] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 242.901330][ T1901] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 242.901652][ T1901] ? __dev_get_by_name (net/core/dev.c:865) 
[ 242.901974][ T1901] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 242.902303][ T1901] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 242.902635][ T1901] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 242.902953][ T1901] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 242.903287][ T1901] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 242.903618][ T1901] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 242.903954][ T1901] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 242.904310][ T1901] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 242.904627][ T1901] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 242.904953][ T1901] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 242.905291][ T1901] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 242.905614][ T1901] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 242.905939][ T1901] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 242.906273][ T1901] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 242.906594][ T1901] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 242.906914][ T1901] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 242.907254][ T1901] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 242.907578][ T1901] ? 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) 
[ 242.907898][ T1901] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 242.908230][ T1901] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 242.908550][ T1901] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 242.908879][ T1901] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 242.909211][ T1901] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 242.909534][ T1901] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 242.909869][ T1901] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 242.910207][ T1901] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 242.910529][ T1901] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 242.910939][ T1901] ___sys_sendmsg (net/socket.c:2670) 
[ 242.911270][ T1901] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 242.911591][ T1901] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 242.911914][ T1901] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 242.912247][ T1901] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 242.912569][ T1901] ? __handle_mm_fault (mm/memory.c:6212) 
[ 242.912888][ T1901] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 242.913215][ T1901] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 242.913556][ T1901] __sys_sendmsg (net/socket.c:2700) 
[ 242.913895][ T1901] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 242.914226][ T1901] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 242.914559][ T1901] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 242.914879][ T1901] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 242.915211][ T1901] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 242.915535][ T1901] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  242.915938][ T1901] RIP: 0033:0x7f96d741d1e7
[ 242.916278][ T1901] 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)
[  242.917432][ T1901] RSP: 002b:00007fffc4389aa8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  242.917913][ T1901] RAX: ffffffffffffffda RBX: 00007fffc438a1d0 RCX: 00007f96d741d1e7
[  242.918403][ T1901] RDX: 0000000000000000 RSI: 00007fffc4389b10 RDI: 0000000000000005
[  242.918896][ T1901] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[  242.919381][ T1901] R10: 00007f96d73156f8 R11: 0000000000000246 R12: 00007fffc438a200
[  242.919864][ T1901] R13: 00000000686e4a60 R14: 0000000000499600 R15: 00007fffc4389c04
| [  244.337417][ T1917] ------------[ cut here ]------------
| [ 244.337805][ T1917] WARNING: CPU: 3 PID: 1917 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) 
| [  244.338457][ T1917] Modules linked in: ip_gre gre
| [  244.339454][ T1917] Tainted: [W]=WARN
[  244.339696][ T1917] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 244.340110][ T1917] 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) 
[ 244.340450][ T1917] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  244.341619][ T1917] RSP: 0018:ffffc90000f77000 EFLAGS: 00010246
[  244.342033][ T1917] RAX: 0000000000000000 RBX: ffff88800dea4000 RCX: 0000000000000001
[  244.342521][ T1917] RDX: 0000000000000000 RSI: ffffffff84f10759 RDI: ffffffff84658280
[  244.343010][ T1917] RBP: ffffc90000f770e8 R08: ffff88800dea4218 R09: 0000000000000000
[  244.343492][ T1917] R10: ffffc90000f77118 R11: e167d025bf275658 R12: 1ffff920001eee04
[  244.343990][ T1917] R13: 00000000000005b6 R14: ffffc90000f77118 R15: ffff88800dea4218
[  244.344493][ T1917] FS:  00007f3d9ac9f800(0000) GS:ffff8880e5b19000(0000) knlGS:0000000000000000
[  244.345062][ T1917] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  244.345541][ T1917] CR2: 0000000000436890 CR3: 000000000f864004 CR4: 0000000000772ef0
[  244.346027][ T1917] PKRU: 55555554
[  244.346293][ T1917] Call Trace:
[  244.346533][ T1917]  <TASK>
[ 244.346699][ T1917] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 244.347027][ T1917] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 244.347369][ T1917] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 244.347691][ T1917] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 244.348020][ T1917] netif_set_mtu (net/core/dev.c:9652) 
[ 244.348361][ T1917] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 244.348696][ T1917] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 244.349019][ T1917] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 244.349271][ T1917] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 244.349601][ T1917] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 244.349929][ T1917] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 244.350261][ T1917] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 244.350662][ T1917] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 244.351068][ T1917] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 244.351391][ T1917] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 244.351700][ T1917] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 244.352006][ T1917] ? __dev_get_by_name (net/core/dev.c:865) 
[ 244.352332][ T1917] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 244.352640][ T1917] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 244.352951][ T1917] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 244.353259][ T1917] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 244.353572][ T1917] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 244.353906][ T1917] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 244.354232][ T1917] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 244.354551][ T1917] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 244.354856][ T1917] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 244.355171][ T1917] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 244.355476][ T1917] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 244.355786][ T1917] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 244.356117][ T1917] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 244.356434][ T1917] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 244.356744][ T1917] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 244.357050][ T1917] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 244.357372][ T1917] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 244.357677][ T1917] ? 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) 
[ 244.357984][ T1917] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 244.358303][ T1917] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 244.358608][ T1917] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 244.358924][ T1917] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 244.359242][ T1917] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 244.359548][ T1917] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 244.359859][ T1917] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 244.360183][ T1917] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 244.360494][ T1917] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 244.360889][ T1917] ___sys_sendmsg (net/socket.c:2670) 
[ 244.361210][ T1917] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 244.361515][ T1917] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 244.361822][ T1917] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 244.362136][ T1917] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 244.362445][ T1917] ? __handle_mm_fault (mm/memory.c:6212) 
[ 244.362749][ T1917] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 244.363057][ T1917] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 244.363392][ T1917] __sys_sendmsg (net/socket.c:2700) 
[ 244.363698][ T1917] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 244.364011][ T1917] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 244.364340][ T1917] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 244.364645][ T1917] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 244.364952][ T1917] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 244.365268][ T1917] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  244.365648][ T1917] RIP: 0033:0x7f3d9ae6c1e7
[ 244.365962][ T1917] 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)
[  244.367054][ T1917] RSP: 002b:00007fffb48c7c28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  244.367530][ T1917] RAX: ffffffffffffffda RBX: 00007fffb48c8350 RCX: 00007f3d9ae6c1e7
[  244.367984][ T1917] RDX: 0000000000000000 RSI: 00007fffb48c7c90 RDI: 0000000000000005
[  244.368457][ T1917] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[  244.368914][ T1917] R10: 00007f3d9ad646f8 R11: 0000000000000246 R12: 00007fffb48c8380
[  244.369380][ T1917] R13: 00000000686e4a61 R14: 0000000000499600 R15: 00007fffb48c7d84
| [  245.775262][ T1933] ------------[ cut here ]------------
| [ 245.775643][ T1933] WARNING: CPU: 0 PID: 1933 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) 
| [  245.776315][ T1933] Modules linked in: ip_gre gre
| [  245.777310][ T1933] Tainted: [W]=WARN
[  245.777555][ T1933] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 245.777958][ T1933] 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) 
[ 245.778298][ T1933] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  245.779452][ T1933] RSP: 0018:ffffc90001057000 EFLAGS: 00010246
[  245.779863][ T1933] RAX: 0000000000000000 RBX: ffff88800a0dc000 RCX: 0000000000000001
[  245.780365][ T1933] RDX: 0000000000000000 RSI: ffffffff84f10759 RDI: ffffffff84658280
[  245.780844][ T1933] RBP: ffffc900010570e8 R08: ffff88800a0dc218 R09: 0000000000000000
[  245.782265][ T1933] R10: ffffc90001057118 R11: ffffffff8598d1e0 R12: 1ffff9200020ae04
[  245.782757][ T1933] R13: 000000000000ffd9 R14: ffffc90001057118 R15: ffff88800a0dc218
[  245.783244][ T1933] FS:  00007fc23706d800(0000) GS:ffff8880e5999000(0000) knlGS:0000000000000000
[  245.783815][ T1933] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  245.784242][ T1933] CR2: 0000000000436890 CR3: 000000000bfc2002 CR4: 0000000000772ef0
[  245.784728][ T1933] PKRU: 55555554
[  245.784972][ T1933] Call Trace:
[  245.785225][ T1933]  <TASK>
[ 245.785393][ T1933] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 245.785799][ T1933] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 245.786132][ T1933] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 245.786458][ T1933] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 245.786791][ T1933] netif_set_mtu (net/core/dev.c:9652) 
[ 245.787123][ T1933] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 245.787464][ T1933] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 245.787788][ T1933] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 245.788038][ T1933] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 245.788383][ T1933] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 245.788720][ T1933] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 245.789049][ T1933] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 245.789464][ T1933] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 245.789798][ T1933] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 245.790129][ T1933] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 245.790453][ T1933] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 245.790772][ T1933] ? __dev_get_by_name (net/core/dev.c:865) 
[ 245.791101][ T1933] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 245.791424][ T1933] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 245.791763][ T1933] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 245.792101][ T1933] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 245.792432][ T1933] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 245.792764][ T1933] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 245.793102][ T1933] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 245.793442][ T1933] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 245.793764][ T1933] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 245.794108][ T1933] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 245.794427][ T1933] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 245.794750][ T1933] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 245.795101][ T1933] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 245.795431][ T1933] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 245.795749][ T1933] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 245.796100][ T1933] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 245.796440][ T1933] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 245.796761][ T1933] ? 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) 
[ 245.797095][ T1933] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 245.797422][ T1933] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 245.797742][ T1933] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 245.798080][ T1933] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 245.798409][ T1933] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 245.798730][ T1933] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 245.799058][ T1933] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 245.799396][ T1933] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 245.799718][ T1933] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 245.800153][ T1933] ___sys_sendmsg (net/socket.c:2670) 
[ 245.800483][ T1933] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 245.800809][ T1933] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 245.801144][ T1933] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 245.801464][ T1933] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 245.801790][ T1933] ? __handle_mm_fault (mm/memory.c:6212) 
[ 245.802122][ T1933] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 245.802443][ T1933] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 245.802795][ T1933] __sys_sendmsg (net/socket.c:2700) 
[ 245.803124][ T1933] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 245.803443][ T1933] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 245.803773][ T1933] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 245.804122][ T1933] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 245.804448][ T1933] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 245.804772][ T1933] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  245.805185][ T1933] RIP: 0033:0x7fc23723a1e7
[ 245.805518][ T1933] 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)
[  245.806665][ T1933] RSP: 002b:00007ffd3b2530a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  245.807156][ T1933] RAX: ffffffffffffffda RBX: 00007ffd3b2537d0 RCX: 00007fc23723a1e7
[  245.807639][ T1933] RDX: 0000000000000000 RSI: 00007ffd3b253110 RDI: 0000000000000005
[  245.808136][ T1933] RBP: 0000000000000004 R08: 00000000000000b8 R09: 0000000000000000
[  245.808621][ T1933] R10: 00007fc2371326f8 R11: 0000000000000246 R12: 00007ffd3b253800
[  245.809136][ T1933] R13: 00000000686e4a63 R14: 0000000000499600 R15: 00007ffd3b253204
| [  247.295984][ T1949] ------------[ cut here ]------------
| [ 247.296359][ T1949] WARNING: CPU: 0 PID: 1949 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) 
| [  247.296999][ T1949] Modules linked in: ip_gre gre
| [  247.297976][ T1949] Tainted: [W]=WARN
[  247.298226][ T1949] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 247.298616][ T1949] 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) 
[ 247.298930][ T1949] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  247.300036][ T1949] RSP: 0018:ffffc90001117000 EFLAGS: 00010246
[  247.300431][ T1949] RAX: 0000000000000000 RBX: ffff88800b294000 RCX: 0000000000000001
[  247.300888][ T1949] RDX: 0000000000000000 RSI: ffffffff84f10759 RDI: ffffffff84658280
[  247.301358][ T1949] RBP: ffffc900011170e8 R08: ffff88800b294218 R09: 0000000000000000
[  247.301816][ T1949] R10: ffffc90001117118 R11: ffffffff8598d1e0 R12: 1ffff92000222e04
[  247.302279][ T1949] R13: 000000000000ffd9 R14: ffffc90001117118 R15: ffff88800b294218
[  247.302737][ T1949] FS:  00007fd3c933a800(0000) GS:ffff8880e5999000(0000) knlGS:0000000000000000
[  247.303282][ T1949] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  247.303686][ T1949] CR2: 0000000000436890 CR3: 00000000097e1001 CR4: 0000000000772ef0
[  247.304170][ T1949] PKRU: 55555554
[  247.304405][ T1949] Call Trace:
[  247.304633][ T1949]  <TASK>
[ 247.304787][ T1949] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 247.305178][ T1949] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 247.305501][ T1949] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 247.305810][ T1949] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 247.306136][ T1949] netif_set_mtu (net/core/dev.c:9652) 
[ 247.306446][ T1949] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 247.306765][ T1949] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 247.307077][ T1949] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 247.307308][ T1949] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 247.307615][ T1949] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 247.307935][ T1949] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 247.308252][ T1949] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 247.308633][ T1949] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 247.308947][ T1949] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 247.309265][ T1949] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 247.309579][ T1949] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 247.309885][ T1949] ? __dev_get_by_name (net/core/dev.c:865) 
[ 247.310198][ T1949] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 247.310506][ T1949] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 247.310813][ T1949] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 247.311124][ T1949] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 247.311432][ T1949] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 247.311750][ T1949] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 247.312057][ T1949] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 247.312389][ T1949] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 247.312711][ T1949] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 247.313020][ T1949] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 247.313334][ T1949] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 247.313642][ T1949] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 247.313963][ T1949] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 247.314296][ T1949] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 247.314604][ T1949] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 247.314915][ T1949] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 247.315237][ T1949] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 247.315558][ T1949] ? 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) 
[ 247.315866][ T1949] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 247.316183][ T1949] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 247.316504][ T1949] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 247.316826][ T1949] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 247.317146][ T1949] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 247.317451][ T1949] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 247.317783][ T1949] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 247.318099][ T1949] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 247.318413][ T1949] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 247.318812][ T1949] ___sys_sendmsg (net/socket.c:2670) 
[ 247.319126][ T1949] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 247.319461][ T1949] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 247.319780][ T1949] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 247.320118][ T1949] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 247.320425][ T1949] ? __handle_mm_fault (mm/memory.c:6212) 
[ 247.320742][ T1949] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 247.321045][ T1949] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 247.321383][ T1949] __sys_sendmsg (net/socket.c:2700) 
[ 247.321688][ T1949] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 247.321992][ T1949] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 247.322309][ T1949] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 247.322614][ T1949] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 247.322926][ T1949] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 247.323239][ T1949] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  247.323621][ T1949] RIP: 0033:0x7fd3c95071e7
[ 247.323945][ T1949] 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)
[  247.325053][ T1949] RSP: 002b:00007fff66124388 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  247.325520][ T1949] RAX: ffffffffffffffda RBX: 00007fff66124ab0 RCX: 00007fd3c95071e7
[  247.325997][ T1949] RDX: 0000000000000000 RSI: 00007fff661243f0 RDI: 0000000000000005
[  247.326463][ T1949] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[  247.326919][ T1949] R10: 00007fd3c93ff6f8 R11: 0000000000000246 R12: 00007fff66124ae0
[  247.327415][ T1949] R13: 00000000686e4a64 R14: 0000000000499600 R15: 00007fff661244e4
| [  248.753968][ T1965] ------------[ cut here ]------------
| [ 248.754356][ T1965] WARNING: CPU: 2 PID: 1965 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) 
| [  248.754985][ T1965] Modules linked in: ip_gre gre
| [  248.755967][ T1965] Tainted: [W]=WARN
[  248.756225][ T1965] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 248.756629][ T1965] 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) 
[ 248.756964][ T1965] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  248.758086][ T1965] RSP: 0018:ffffc900011f7000 EFLAGS: 00010246
[  248.758491][ T1965] RAX: 0000000000000000 RBX: ffff8880110e4000 RCX: 0000000000000001
[  248.758966][ T1965] RDX: 0000000000000000 RSI: ffffffff84f10759 RDI: ffffffff84658280
[  248.759451][ T1965] RBP: ffffc900011f70e8 R08: ffff8880110e4218 R09: 0000000000000000
[  248.759924][ T1965] R10: ffffc900011f7118 R11: 7d9e13fcda4873b7 R12: 1ffff9200023ee04
[  248.760406][ T1965] R13: 00000000000005b6 R14: ffffc900011f7118 R15: ffff8880110e4218
[  248.760888][ T1965] FS:  00007f8c3872f800(0000) GS:ffff8880e5a99000(0000) knlGS:0000000000000000
[  248.761450][ T1965] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  248.761859][ T1965] CR2: 0000000000436890 CR3: 000000000e1a7002 CR4: 0000000000772ef0
[  248.762344][ T1965] PKRU: 55555554
[  248.762594][ T1965] Call Trace:
[  248.762837][ T1965]  <TASK>
[ 248.763010][ T1965] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 248.763359][ T1965] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 248.763683][ T1965] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 248.764022][ T1965] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 248.764375][ T1965] netif_set_mtu (net/core/dev.c:9652) 
[ 248.764693][ T1965] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 248.765026][ T1965] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 248.765379][ T1965] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 248.765636][ T1965] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 248.765961][ T1965] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 248.766300][ T1965] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 248.766631][ T1965] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 248.767029][ T1965] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 248.767368][ T1965] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 248.767688][ T1965] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 248.768014][ T1965] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 248.768337][ T1965] ? __dev_get_by_name (net/core/dev.c:865) 
[ 248.768659][ T1965] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 248.768985][ T1965] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 248.769325][ T1965] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 248.769640][ T1965] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 248.769967][ T1965] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 248.770306][ T1965] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 248.770628][ T1965] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 248.770960][ T1965] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 248.771287][ T1965] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 248.771610][ T1965] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 248.771926][ T1965] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 248.772256][ T1965] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 248.772579][ T1965] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 248.772901][ T1965] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 248.773236][ T1965] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 248.773553][ T1965] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 248.773906][ T1965] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 248.774235][ T1965] ? 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) 
[ 248.774555][ T1965] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 248.774876][ T1965] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 248.775230][ T1965] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 248.775554][ T1965] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 248.775879][ T1965] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 248.776219][ T1965] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 248.776548][ T1965] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 248.776867][ T1965] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 248.777192][ T1965] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 248.777597][ T1965] ___sys_sendmsg (net/socket.c:2670) 
[ 248.777915][ T1965] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 248.778249][ T1965] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 248.778574][ T1965] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 248.778889][ T1965] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 248.779221][ T1965] ? __handle_mm_fault (mm/memory.c:6212) 
[ 248.779539][ T1965] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 248.779851][ T1965] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 248.780200][ T1965] __sys_sendmsg (net/socket.c:2700) 
[ 248.780517][ T1965] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 248.780843][ T1965] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 248.781179][ T1965] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 248.781500][ T1965] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 248.781817][ T1965] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 248.782151][ T1965] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  248.782540][ T1965] RIP: 0033:0x7f8c388fc1e7
[ 248.782869][ T1965] 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)
[  248.783995][ T1965] RSP: 002b:00007ffd59465de8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  248.784480][ T1965] RAX: ffffffffffffffda RBX: 00007ffd59466510 RCX: 00007f8c388fc1e7
[  248.784945][ T1965] RDX: 0000000000000000 RSI: 00007ffd59465e50 RDI: 0000000000000005
[  248.785437][ T1965] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[  248.785903][ T1965] R10: 00007f8c387f46f8 R11: 0000000000000246 R12: 00007ffd59466540
[  248.786386][ T1965] R13: 00000000686e4a66 R14: 0000000000499600 R15: 00007ffd59465f44
| [  250.237234][ T1981] ------------[ cut here ]------------
| [ 250.237778][ T1981] WARNING: CPU: 0 PID: 1981 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) 
| [  250.238715][ T1981] Modules linked in: ip_gre gre
| [  250.240191][ T1981] Tainted: [W]=WARN
[  250.240546][ T1981] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 250.241151][ T1981] 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) 
[ 250.241643][ T1981] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  250.243335][ T1981] RSP: 0018:ffffc900010d7000 EFLAGS: 00010246
[  250.243946][ T1981] RAX: 0000000000000000 RBX: ffff88800e0b1000 RCX: 0000000000000001
[  250.244631][ T1981] RDX: 0000000000000000 RSI: ffffffff84f10759 RDI: ffffffff84658280
[  250.245103][ T1981] RBP: ffffc900010d70e8 R08: ffff88800e0b1218 R09: 0000000000000000
[  250.245567][ T1981] R10: ffffc900010d7118 R11: ffffffff8598d1e0 R12: 1ffff9200021ae04
[  250.246027][ T1981] R13: 000000000000ffd9 R14: ffffc900010d7118 R15: ffff88800e0b1218
[  250.246494][ T1981] FS:  00007f0e9796c800(0000) GS:ffff8880e5999000(0000) knlGS:0000000000000000
[  250.247039][ T1981] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  250.247432][ T1981] CR2: 0000000000436890 CR3: 000000000bafb003 CR4: 0000000000772ef0
[  250.247897][ T1981] PKRU: 55555554
[  250.248138][ T1981] Call Trace:
[  250.248368][ T1981]  <TASK>
[ 250.248525][ T1981] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 250.248912][ T1981] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 250.249233][ T1981] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 250.249548][ T1981] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 250.249865][ T1981] netif_set_mtu (net/core/dev.c:9652) 
[ 250.250181][ T1981] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 250.250505][ T1981] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 250.250814][ T1981] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 250.251046][ T1981] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 250.251372][ T1981] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 250.251691][ T1981] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 250.251999][ T1981] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 250.252400][ T1981] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 250.252718][ T1981] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 250.253027][ T1981] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 250.253349][ T1981] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 250.253655][ T1981] ? __dev_get_by_name (net/core/dev.c:865) 
[ 250.253974][ T1981] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 250.254292][ T1981] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 250.254606][ T1981] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 250.254911][ T1981] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 250.255231][ T1981] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 250.255549][ T1981] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 250.255863][ T1981] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 250.256196][ T1981] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 250.256501][ T1981] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 250.256824][ T1981] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 250.257149][ T1981] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 250.257461][ T1981] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 250.257776][ T1981] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 250.258102][ T1981] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 250.258409][ T1981] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 250.258717][ T1981] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 250.259048][ T1981] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 250.259364][ T1981] ? 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) 
[ 250.259672][ T1981] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 250.259984][ T1981] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 250.260299][ T1981] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 250.260618][ T1981] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 250.260928][ T1981] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 250.261245][ T1981] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 250.261558][ T1981] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 250.261869][ T1981] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 250.262185][ T1981] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 250.262591][ T1981] ___sys_sendmsg (net/socket.c:2670) 
[ 250.262915][ T1981] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 250.263258][ T1981] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 250.263574][ T1981] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 250.263975][ T1981] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 250.264301][ T1981] ? __handle_mm_fault (mm/memory.c:6212) 
[ 250.264610][ T1981] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 250.264912][ T1981] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 250.265263][ T1981] __sys_sendmsg (net/socket.c:2700) 
[ 250.265574][ T1981] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 250.265878][ T1981] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 250.266200][ T1981] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 250.266513][ T1981] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 250.266822][ T1981] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 250.267143][ T1981] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  250.267532][ T1981] RIP: 0033:0x7f0e97b391e7
[ 250.267855][ T1981] 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)
[  250.268966][ T1981] RSP: 002b:00007ffc04ca68b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  250.269437][ T1981] RAX: ffffffffffffffda RBX: 00007ffc04ca6fe0 RCX: 00007f0e97b391e7
[  250.269902][ T1981] RDX: 0000000000000000 RSI: 00007ffc04ca6920 RDI: 0000000000000005
[  250.270370][ T1981] RBP: 0000000000000004 R08: 00000000000000b8 R09: 0000000000000000
[  250.270833][ T1981] R10: 00007f0e97a316f8 R11: 0000000000000246 R12: 00007ffc04ca7010
[  250.271300][ T1981] R13: 00000000686e4a67 R14: 0000000000499600 R15: 00007ffc04ca6a14
| [  251.901155][ T1998] ------------[ cut here ]------------
| [ 251.901530][ T1998] WARNING: CPU: 2 PID: 1998 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) 
| [  251.902187][ T1998] Modules linked in: ip_gre gre
| [  251.903219][ T1998] Tainted: [W]=WARN
[  251.903464][ T1998] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 251.903878][ T1998] 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) 
[ 251.904220][ T1998] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  251.905334][ T1998] RSP: 0018:ffffc90001397000 EFLAGS: 00010246
[  251.905746][ T1998] RAX: 0000000000000000 RBX: ffff8880110e1000 RCX: 0000000000000001
[  251.906244][ T1998] RDX: 0000000000000000 RSI: ffffffff84f10759 RDI: ffffffff84658280
[  251.906719][ T1998] RBP: ffffc900013970e8 R08: ffff8880110e1218 R09: 0000000000000000
[  251.907206][ T1998] R10: ffffc90001397118 R11: ffff8880076245f0 R12: 1ffff92000272e04
[  251.907687][ T1998] R13: 000000000000ffd9 R14: ffffc90001397118 R15: ffff8880110e1218
[  251.908175][ T1998] FS:  00007f168e7c6800(0000) GS:ffff8880e5a99000(0000) knlGS:0000000000000000
[  251.908725][ T1998] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  251.909140][ T1998] CR2: 0000000000436890 CR3: 0000000011224002 CR4: 0000000000772ef0
[  251.909617][ T1998] PKRU: 55555554
[  251.909863][ T1998] Call Trace:
[  251.910134][ T1998]  <TASK>
[ 251.910309][ T1998] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 251.910704][ T1998] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 251.911027][ T1998] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 251.911365][ T1998] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 251.911703][ T1998] netif_set_mtu (net/core/dev.c:9652) 
[ 251.912036][ T1998] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 251.912401][ T1998] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 251.912725][ T1998] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 251.912976][ T1998] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 251.913314][ T1998] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 251.913645][ T1998] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 251.913992][ T1998] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 251.914416][ T1998] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 251.914748][ T1998] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 251.915082][ T1998] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 251.915412][ T1998] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 251.915743][ T1998] ? __dev_get_by_name (net/core/dev.c:865) 
[ 251.916063][ T1998] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 251.916392][ T1998] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 251.916722][ T1998] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 251.917036][ T1998] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 251.917380][ T1998] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 251.917709][ T1998] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 251.918035][ T1998] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 251.918397][ T1998] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 251.918713][ T1998] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 251.919030][ T1998] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 251.919357][ T1998] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 251.919674][ T1998] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 251.919995][ T1998] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 251.920329][ T1998] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 251.920647][ T1998] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 251.920970][ T1998] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 251.921315][ T1998] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 251.921631][ T1998] ? 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) 
[ 251.921951][ T1998] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 251.922353][ T1998] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 251.922676][ T1998] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 251.922997][ T1998] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 251.923334][ T1998] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 251.923653][ T1998] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 251.923999][ T1998] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 251.924327][ T1998] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 251.924643][ T1998] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 251.925045][ T1998] ___sys_sendmsg (net/socket.c:2670) 
[ 251.925375][ T1998] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 251.925699][ T1998] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 251.926023][ T1998] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 251.926361][ T1998] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 251.926686][ T1998] ? __handle_mm_fault (mm/memory.c:6212) 
[ 251.927008][ T1998] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 251.927339][ T1998] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 251.927681][ T1998] __sys_sendmsg (net/socket.c:2700) 
[ 251.928005][ T1998] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 251.928331][ T1998] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 251.928658][ T1998] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 251.928978][ T1998] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 251.929310][ T1998] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 251.929632][ T1998] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  251.930052][ T1998] RIP: 0033:0x7f168e9931e7
[ 251.930413][ T1998] 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)
[  251.931529][ T1998] RSP: 002b:00007ffee5eede88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  251.932006][ T1998] RAX: ffffffffffffffda RBX: 00007ffee5eee5b0 RCX: 00007f168e9931e7
[  251.932495][ T1998] RDX: 0000000000000000 RSI: 00007ffee5eedef0 RDI: 0000000000000005
[  251.932964][ T1998] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[  251.933443][ T1998] R10: 00007f168e88b6f8 R11: 0000000000000246 R12: 00007ffee5eee5e0
[  251.933928][ T1998] R13: 00000000686e4a69 R14: 0000000000499600 R15: 00007ffee5eedfe4
| [  253.536433][ T2015] ------------[ cut here ]------------
| [ 253.536808][ T2015] WARNING: CPU: 3 PID: 2015 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) 
| [  253.537478][ T2015] Modules linked in: ip_gre gre
| [  253.538483][ T2015] Tainted: [W]=WARN
[  253.538728][ T2015] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 253.539152][ T2015] 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) 
[ 253.539508][ T2015] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  253.540671][ T2015] RSP: 0018:ffffc90001467000 EFLAGS: 00010246
[  253.541097][ T2015] RAX: 0000000000000000 RBX: ffff88800e0b4000 RCX: 0000000000000001
[  253.541591][ T2015] RDX: 0000000000000000 RSI: ffffffff84f10759 RDI: ffffffff84658280
[  253.542103][ T2015] RBP: ffffc900014670e8 R08: ffff88800e0b4218 R09: 0000000000000000
[  253.542707][ T2015] R10: ffffc90001467118 R11: 73f9c4d967ffde68 R12: 1ffff9200028ce04
[  253.543199][ T2015] R13: 00000000000005b6 R14: ffffc90001467118 R15: ffff88800e0b4218
[  253.543672][ T2015] FS:  00007fd378430800(0000) GS:ffff8880e5b19000(0000) knlGS:0000000000000000
[  253.544453][ T2015] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  253.544869][ T2015] CR2: 00007fd378530130 CR3: 000000000b156006 CR4: 0000000000772ef0
[  253.545378][ T2015] PKRU: 55555554
[  253.545632][ T2015] Call Trace:
[  253.545887][ T2015]  <TASK>
[ 253.546061][ T2015] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 253.546438][ T2015] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 253.546785][ T2015] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 253.547129][ T2015] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 253.547470][ T2015] netif_set_mtu (net/core/dev.c:9652) 
[ 253.547811][ T2015] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 253.548180][ T2015] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 253.548524][ T2015] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 253.548771][ T2015] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 253.549105][ T2015] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 253.549446][ T2015] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 253.549776][ T2015] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 253.550188][ T2015] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 253.550518][ T2015] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 253.550844][ T2015] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 253.551199][ T2015] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 253.551532][ T2015] ? __dev_get_by_name (net/core/dev.c:865) 
[ 253.551871][ T2015] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 253.552202][ T2015] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 253.552535][ T2015] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 253.552865][ T2015] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 253.553199][ T2015] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 253.553533][ T2015] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 253.553882][ T2015] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 253.554231][ T2015] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 253.554568][ T2015] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 253.554910][ T2015] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 253.555265][ T2015] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 253.555600][ T2015] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 253.555924][ T2015] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 253.556261][ T2015] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 253.556584][ T2015] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 253.556912][ T2015] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 253.557251][ T2015] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 253.557572][ T2015] ? 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) 
[ 253.557895][ T2015] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 253.558228][ T2015] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 253.558559][ T2015] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 253.558885][ T2015] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 253.559228][ T2015] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 253.559557][ T2015] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 253.559882][ T2015] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 253.560228][ T2015] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 253.560550][ T2015] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 253.560962][ T2015] ___sys_sendmsg (net/socket.c:2670) 
[ 253.561291][ T2015] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 253.561621][ T2015] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 253.561955][ T2015] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 253.562284][ T2015] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 253.562609][ T2015] ? __handle_mm_fault (mm/memory.c:6212) 
[ 253.562933][ T2015] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 253.563268][ T2015] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 253.563619][ T2015] __sys_sendmsg (net/socket.c:2700) 
[ 253.563954][ T2015] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 253.564297][ T2015] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 253.564631][ T2015] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 253.564955][ T2015] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 253.565311][ T2015] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 253.565648][ T2015] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  253.566053][ T2015] RIP: 0033:0x7fd3785fd1e7
[ 253.566414][ T2015] 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)
[  253.567590][ T2015] RSP: 002b:00007ffe148b1588 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  253.568087][ T2015] RAX: ffffffffffffffda RBX: 00007ffe148b1cb0 RCX: 00007fd3785fd1e7
[  253.568574][ T2015] RDX: 0000000000000000 RSI: 00007ffe148b15f0 RDI: 0000000000000005
[  253.569063][ T2015] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[  253.569554][ T2015] R10: 00007fd3784f56f8 R11: 0000000000000246 R12: 00007ffe148b1ce0
[  253.570043][ T2015] R13: 00000000686e4a6b R14: 0000000000499600 R15: 00007ffe148b16e4
| [  255.175009][ T2032] ------------[ cut here ]------------
| [ 255.175408][ T2032] WARNING: CPU: 2 PID: 2032 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) 
| [  255.176035][ T2032] Modules linked in: ip_gre gre
| [  255.177053][ T2032] Tainted: [W]=WARN
[  255.177308][ T2032] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 255.177710][ T2032] 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) 
[ 255.178043][ T2032] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  255.179175][ T2032] RSP: 0018:ffffc90001527000 EFLAGS: 00010246
[  255.179581][ T2032] RAX: 0000000000000000 RBX: ffff88800aa94000 RCX: 0000000000000001
[  255.180052][ T2032] RDX: 0000000000000000 RSI: ffffffff84f10759 RDI: ffffffff84658280
[  255.180536][ T2032] RBP: ffffc900015270e8 R08: ffff88800aa94218 R09: 0000000000000000
[  255.181019][ T2032] R10: ffffc90001527118 R11: ffffffff8598d1e0 R12: 1ffff920002a4e04
[  255.181510][ T2032] R13: 000000000000ffd9 R14: ffffc90001527118 R15: ffff88800aa94218
[  255.182115][ T2032] FS:  00007fdcef7aa800(0000) GS:ffff8880e5a99000(0000) knlGS:0000000000000000
[  255.182677][ T2032] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  255.183094][ T2032] CR2: 0000000000436890 CR3: 000000000c53b002 CR4: 0000000000772ef0
[  255.183575][ T2032] PKRU: 55555554
[  255.183828][ T2032] Call Trace:
[  255.184082][ T2032]  <TASK>
[ 255.184253][ T2032] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 255.184652][ T2032] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 255.184984][ T2032] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 255.185323][ T2032] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 255.185661][ T2032] netif_set_mtu (net/core/dev.c:9652) 
[ 255.185982][ T2032] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 255.186329][ T2032] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 255.186649][ T2032] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 255.186896][ T2032] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 255.187235][ T2032] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 255.187576][ T2032] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 255.187910][ T2032] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 255.188317][ T2032] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 255.188655][ T2032] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 255.189011][ T2032] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 255.189355][ T2032] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 255.189675][ T2032] ? __dev_get_by_name (net/core/dev.c:865) 
[ 255.190001][ T2032] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 255.190329][ T2032] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 255.190653][ T2032] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 255.191000][ T2032] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 255.191353][ T2032] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 255.191683][ T2032] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 255.192009][ T2032] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 255.192350][ T2032] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 255.192667][ T2032] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 255.192990][ T2032] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 255.193317][ T2032] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 255.193637][ T2032] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 255.193979][ T2032] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 255.194316][ T2032] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 255.194638][ T2032] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 255.194962][ T2032] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 255.195304][ T2032] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 255.195620][ T2032] ? 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) 
[ 255.195938][ T2032] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 255.196278][ T2032] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 255.196594][ T2032] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 255.196918][ T2032] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 255.197253][ T2032] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 255.197575][ T2032] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 255.197898][ T2032] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 255.198234][ T2032] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 255.198555][ T2032] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 255.198961][ T2032] ___sys_sendmsg (net/socket.c:2670) 
[ 255.199291][ T2032] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 255.199609][ T2032] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 255.199927][ T2032] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 255.200256][ T2032] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 255.200575][ T2032] ? __handle_mm_fault (mm/memory.c:6212) 
[ 255.200897][ T2032] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 255.201229][ T2032] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 255.201569][ T2032] __sys_sendmsg (net/socket.c:2700) 
[ 255.201886][ T2032] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 255.202215][ T2032] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 255.202542][ T2032] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 255.202860][ T2032] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 255.203198][ T2032] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 255.203518][ T2032] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  255.203923][ T2032] RIP: 0033:0x7fdcef9771e7
[ 255.204280][ T2032] 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)
[  255.205396][ T2032] RSP: 002b:00007ffdaead34e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  255.205865][ T2032] RAX: ffffffffffffffda RBX: 00007ffdaead3c10 RCX: 00007fdcef9771e7
[  255.206348][ T2032] RDX: 0000000000000000 RSI: 00007ffdaead3550 RDI: 0000000000000005
[  255.206816][ T2032] RBP: 0000000000000004 R08: 00000000000000b8 R09: 0000000000000000
[  255.207302][ T2032] R10: 00007fdcef86f6f8 R11: 0000000000000246 R12: 00007ffdaead3c40
[  255.207772][ T2032] R13: 00000000686e4a6c R14: 0000000000499600 R15: 00007ffdaead3644
| [  256.640487][ T2048] ------------[ cut here ]------------
| [ 256.640916][ T2048] WARNING: CPU: 3 PID: 2048 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) 
| [  256.641551][ T2048] Modules linked in: ip_gre gre
| [  256.642836][ T2048] Tainted: [W]=WARN
[  256.643082][ T2048] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 256.643465][ T2048] 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) 
[ 256.643783][ T2048] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  256.644900][ T2048] RSP: 0018:ffffc900015e7000 EFLAGS: 00010246
[  256.645308][ T2048] RAX: 0000000000000000 RBX: ffff88800c781000 RCX: 0000000000000001
[  256.645767][ T2048] RDX: 0000000000000000 RSI: ffffffff84f10759 RDI: ffffffff84658280
[  256.646231][ T2048] RBP: ffffc900015e70e8 R08: ffff88800c781218 R09: 0000000000000000
[  256.646690][ T2048] R10: ffffc900015e7118 R11: ffffffff8598d1e0 R12: 1ffff920002bce04
[  256.647205][ T2048] R13: 000000000000ffd9 R14: ffffc900015e7118 R15: ffff88800c781218
[  256.647665][ T2048] FS:  00007f7d990b0800(0000) GS:ffff8880e5b19000(0000) knlGS:0000000000000000
[  256.648220][ T2048] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  256.648606][ T2048] CR2: 00007f7d991b0130 CR3: 000000000a54c002 CR4: 0000000000772ef0
[  256.649096][ T2048] PKRU: 55555554
[  256.649330][ T2048] Call Trace:
[  256.649560][ T2048]  <TASK>
[ 256.649714][ T2048] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 256.650111][ T2048] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 256.650427][ T2048] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 256.650738][ T2048] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 256.651054][ T2048] netif_set_mtu (net/core/dev.c:9652) 
[ 256.651381][ T2048] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 256.651702][ T2048] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 256.652007][ T2048] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 256.652249][ T2048] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 256.652559][ T2048] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 256.652872][ T2048] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 256.653198][ T2048] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 256.653579][ T2048] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 256.653910][ T2048] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 256.654228][ T2048] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 256.654537][ T2048] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 256.654839][ T2048] ? __dev_get_by_name (net/core/dev.c:865) 
[ 256.655154][ T2048] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 256.655458][ T2048] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 256.655767][ T2048] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 256.656087][ T2048] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 256.656400][ T2048] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 256.656718][ T2048] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 256.657029][ T2048] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 256.657366][ T2048] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 256.657671][ T2048] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 256.657980][ T2048] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 256.658295][ T2048] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 256.658604][ T2048] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 256.658913][ T2048] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 256.659230][ T2048] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 256.659537][ T2048] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 256.659848][ T2048] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 256.660173][ T2048] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 256.660485][ T2048] ? 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) 
[ 256.660790][ T2048] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 256.661119][ T2048] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 256.661424][ T2048] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 256.661737][ T2048] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 256.662045][ T2048] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 256.662358][ T2048] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 256.662672][ T2048] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 256.662983][ T2048] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 256.663295][ T2048] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 256.663687][ T2048] ___sys_sendmsg (net/socket.c:2670) 
[ 256.663998][ T2048] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 256.664314][ T2048] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 256.664621][ T2048] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 256.664922][ T2048] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 256.665246][ T2048] ? __handle_mm_fault (mm/memory.c:6212) 
[ 256.665552][ T2048] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 256.665853][ T2048] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 256.666192][ T2048] __sys_sendmsg (net/socket.c:2700) 
[ 256.666499][ T2048] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 256.666802][ T2048] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 256.667118][ T2048] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 256.667428][ T2048] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 256.667735][ T2048] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 256.668040][ T2048] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  256.668428][ T2048] RIP: 0033:0x7f7d9927d1e7
[ 256.668746][ T2048] 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)
[  256.669848][ T2048] RSP: 002b:00007ffdadfcc998 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  256.670321][ T2048] RAX: ffffffffffffffda RBX: 00007ffdadfcd0c0 RCX: 00007f7d9927d1e7
[  256.670788][ T2048] RDX: 0000000000000000 RSI: 00007ffdadfcca00 RDI: 0000000000000005
[  256.671253][ T2048] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[  256.671709][ T2048] R10: 00007f7d991756f8 R11: 0000000000000246 R12: 00007ffdadfcd0f0
[  256.672171][ T2048] R13: 00000000686e4a6e R14: 0000000000499600 R15: 00007ffdadfccaf4
| [  258.191414][ T2064] ------------[ cut here ]------------
| [ 258.191854][ T2064] WARNING: CPU: 2 PID: 2064 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) 
| [  258.192507][ T2064] Modules linked in: ip_gre gre
| [  258.193648][ T2064] Tainted: [W]=WARN
[  258.193923][ T2064] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 258.194408][ T2064] 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) 
[ 258.194839][ T2064] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  258.196268][ T2064] RSP: 0018:ffffc90001697000 EFLAGS: 00010246
[  258.196697][ T2064] RAX: 0000000000000000 RBX: ffff888004bc9000 RCX: 0000000000000001
[  258.197190][ T2064] RDX: 0000000000000000 RSI: ffffffff84f10759 RDI: ffffffff84658280
[  258.197725][ T2064] RBP: ffffc900016970e8 R08: ffff888004bc9218 R09: 0000000000000000
[  258.198540][ T2064] R10: ffffc90001697118 R11: daae1b5e65a578bb R12: 1ffff920002d2e04
[  258.199374][ T2064] R13: 00000000000005b6 R14: ffffc90001697118 R15: ffff888004bc9218
[  258.200210][ T2064] FS:  00007fe4213b5800(0000) GS:ffff8880e5a99000(0000) knlGS:0000000000000000
[  258.201172][ T2064] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  258.201845][ T2064] CR2: 0000000000436890 CR3: 000000000a80a006 CR4: 0000000000772ef0
[  258.202685][ T2064] PKRU: 55555554
[  258.203108][ T2064] Call Trace:
[  258.203505][ T2064]  <TASK>
[ 258.203808][ T2064] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 258.204411][ T2064] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 258.204938][ T2064] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 258.205525][ T2064] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 258.206106][ T2064] netif_set_mtu (net/core/dev.c:9652) 
[ 258.206668][ T2064] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 258.207271][ T2064] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 258.207793][ T2064] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 258.208254][ T2064] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 258.208804][ T2064] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 258.209377][ T2064] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 258.209940][ T2064] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 258.210650][ T2064] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 258.211238][ T2064] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 258.211791][ T2064] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 258.212381][ T2064] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 258.212942][ T2064] ? __dev_get_by_name (net/core/dev.c:865) 
[ 258.213530][ T2064] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 258.214106][ T2064] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 258.214672][ T2064] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 258.215241][ T2064] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 258.215800][ T2064] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 258.216402][ T2064] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 258.216973][ T2064] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 258.217573][ T2064] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 258.218136][ T2064] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 258.218695][ T2064] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 258.219275][ T2064] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 258.219832][ T2064] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 258.220427][ T2064] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 258.220996][ T2064] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 258.221578][ T2064] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 258.222157][ T2064] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 258.222736][ T2064] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 258.223308][ T2064] ? 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) 
[ 258.223884][ T2064] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 258.224469][ T2064] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 258.225026][ T2064] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 258.225617][ T2064] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 258.226198][ T2064] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 258.226755][ T2064] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 258.227345][ T2064] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 258.227907][ T2064] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 258.228493][ T2064] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 258.229221][ T2064] ___sys_sendmsg (net/socket.c:2670) 
[ 258.229787][ T2064] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 258.230357][ T2064] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 258.230911][ T2064] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 258.231480][ T2064] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 258.232024][ T2064] ? __handle_mm_fault (mm/memory.c:6212) 
[ 258.232512][ T2064] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 258.233060][ T2064] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 258.233674][ T2064] __sys_sendmsg (net/socket.c:2700) 
[ 258.234270][ T2064] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 258.234809][ T2064] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 258.235409][ T2064] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 258.235979][ T2064] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 258.236565][ T2064] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 258.237142][ T2064] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  258.237819][ T2064] RIP: 0033:0x7fe4215821e7
[ 258.238386][ T2064] 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)
[  258.240257][ T2064] RSP: 002b:00007ffd93c8f538 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  258.241063][ T2064] RAX: ffffffffffffffda RBX: 00007ffd93c8fc60 RCX: 00007fe4215821e7
[  258.241872][ T2064] RDX: 0000000000000000 RSI: 00007ffd93c8f5a0 RDI: 0000000000000005
[  258.242706][ T2064] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[  258.243521][ T2064] R10: 00007fe42147a6f8 R11: 0000000000000246 R12: 00007ffd93c8fc90


Finger prints:
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:ip_tunnel_newlink:ipgre_newlink