======================================
| [  305.082269][ T2301] ip_gre: GRE over IPv4 tunneling driver
| [  305.158578][ T2300] ------------[ cut here ]------------
| [ 305.159421][ T2300] WARNING: CPU: 2 PID: 2300 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) 
| [  305.160142][ T2300] Modules linked in: ip_gre gre
[  305.161233][ T2300] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 305.161665][ T2300] 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) 
[ 305.162059][ T2300] 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
[  305.163496][ T2300] RSP: 0018:ffffc90005117000 EFLAGS: 00010246
[  305.163940][ T2300] RAX: 0000000000000000 RBX: ffff888002c01000 RCX: 0000000000000001
[  305.164476][ T2300] RDX: 0000000000000000 RSI: ffffffffa5f10759 RDI: ffffffffa5658280
[  305.164983][ T2300] RBP: ffffc900051170e8 R08: ffff888002c01218 R09: 0000000000000000
[  305.165520][ T2300] R10: ffffc90005117118 R11: ffff8880054215f0 R12: 1ffff92000a22e04
[  305.166033][ T2300] R13: 000000000000ffe7 R14: ffffc90005117118 R15: ffff888002c01218
[  305.166561][ T2300] FS:  00007f632a952800(0000) GS:ffff8880c4a99000(0000) knlGS:0000000000000000
[  305.167178][ T2300] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  305.167613][ T2300] CR2: 00007f056a4a8000 CR3: 00000000175e5006 CR4: 0000000000772ef0
[  305.168131][ T2300] PKRU: 55555554
[  305.168433][ T2300] Call Trace:
[  305.168722][ T2300]  <TASK>
[ 305.168907][ T2300] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 305.169378][ T2300] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 305.169732][ T2300] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 305.170081][ T2300] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 305.170449][ T2300] netif_set_mtu (net/core/dev.c:9652) 
[ 305.170801][ T2300] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 305.171163][ T2300] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 305.171439][ T2300] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 305.171790][ T2300] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 305.172139][ T2300] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 305.172511][ T2300] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 305.172942][ T2300] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 305.173319][ T2300] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 305.173665][ T2300] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 305.174005][ T2300] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 305.174353][ T2300] ? __dev_get_by_name (net/core/dev.c:865) 
[ 305.174691][ T2300] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 305.175038][ T2300] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 305.175410][ T2300] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 305.175750][ T2300] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 305.176109][ T2300] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 305.176477][ T2300] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 305.176827][ T2300] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 305.177193][ T2300] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 305.177552][ T2300] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 305.177905][ T2300] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 305.178249][ T2300] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 305.178603][ T2300] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 305.178942][ T2300] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 305.179293][ T2300] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 305.179639][ T2300] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 305.179968][ T2300] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 305.180328][ T2300] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 305.180699][ T2300] ? 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) 
[ 305.181041][ T2300] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 305.181381][ T2300] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 305.181732][ T2300] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 305.182087][ T2300] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 305.182424][ T2300] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 305.182798][ T2300] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 305.183163][ T2300] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 305.183508][ T2300] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 305.183859][ T2300] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 305.184294][ T2300] ___sys_sendmsg (net/socket.c:2670) 
[ 305.184651][ T2300] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 305.185000][ T2300] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 305.185351][ T2300] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 305.185699][ T2300] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 305.186054][ T2300] ? __handle_mm_fault (mm/memory.c:6212) 
[ 305.186391][ T2300] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 305.186758][ T2300] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 305.187132][ T2300] __sys_sendmsg (net/socket.c:2700) 
[ 305.187472][ T2300] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 305.187832][ T2300] ? 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) 
[ 305.188193][ T2300] ? 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) 
[ 305.188534][ T2300] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 305.188894][ T2300] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 305.189243][ T2300] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  305.189656][ T2300] RIP: 0033:0x7f632ab1f1e7
[ 305.190030][ T2300] Code: Unable to access opcode bytes at 0x7f632ab1f1bd.

Code starting with the faulting instruction
===========================================
[  305.190469][ T2300] RSP: 002b:00007ffc615c6fa8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  305.190983][ T2300] RAX: ffffffffffffffda RBX: 00007ffc615c76d0 RCX: 00007f632ab1f1e7
[  305.191491][ T2300] RDX: 0000000000000000 RSI: 00007ffc615c7010 RDI: 0000000000000005
[  305.192004][ T2300] RBP: 0000000000000004 R08: 00000000000000b4 R09: 0000000000000000
[  305.192486][ T2300] R10: 00007f632aa176f8 R11: 0000000000000246 R12: 00007ffc615c7700
[  305.193021][ T2300] R13: 00000000686e20a9 R14: 0000000000499600 R15: 00007ffc615c7100
| [  306.695792][ T2324] ------------[ cut here ]------------
| [ 306.696547][ T2324] WARNING: CPU: 3 PID: 2324 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) 
| [  306.697172][ T2324] Modules linked in: ip_gre gre
| [  306.698124][ T2324] Tainted: [W]=WARN
[  306.698369][ T2324] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 306.698753][ T2324] 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) 
[ 306.699084][ T2324] 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
[  306.700196][ T2324] RSP: 0018:ffffc90000607000 EFLAGS: 00010246
[  306.700582][ T2324] RAX: 0000000000000000 RBX: ffff888008c01000 RCX: 0000000000000001
[  306.701044][ T2324] RDX: 0000000000000000 RSI: ffffffffa5f10759 RDI: ffffffffa5658280
[  306.701496][ T2324] RBP: ffffc900006070e8 R08: ffff888008c01218 R09: 0000000000000000
[  306.701952][ T2324] R10: ffffc90000607118 R11: ffff8880054215f0 R12: 1ffff920000c0e04
[  306.702415][ T2324] R13: 000000000000ffe7 R14: ffffc90000607118 R15: ffff888008c01218
[  306.702883][ T2324] FS:  00007f1ae4cc6800(0000) GS:ffff8880c4b19000(0000) knlGS:0000000000000000
[  306.703424][ T2324] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  306.703817][ T2324] CR2: 0000000000436890 CR3: 000000001758a004 CR4: 0000000000772ef0
[  306.704434][ T2324] PKRU: 55555554
[  306.704663][ T2324] Call Trace:
[  306.704890][ T2324]  <TASK>
[ 306.705154][ T2324] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 306.705534][ T2324] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 306.705839][ T2324] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 306.706157][ T2324] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 306.706470][ T2324] netif_set_mtu (net/core/dev.c:9652) 
[ 306.706774][ T2324] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 306.707103][ T2324] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 306.707336][ T2324] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 306.707641][ T2324] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 306.707953][ T2324] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 306.708279][ T2324] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 306.708667][ T2324] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 306.708981][ T2324] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 306.709300][ T2324] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 306.709610][ T2324] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 306.709914][ T2324] ? __dev_get_by_name (net/core/dev.c:865) 
[ 306.710229][ T2324] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 306.710540][ T2324] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 306.710852][ T2324] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 306.711164][ T2324] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 306.711480][ T2324] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 306.711797][ T2324] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 306.712123][ T2324] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 306.712442][ T2324] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 306.712755][ T2324] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 306.713078][ T2324] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 306.713383][ T2324] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 306.713690][ T2324] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 306.714012][ T2324] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 306.714327][ T2324] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 306.714634][ T2324] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 306.714938][ T2324] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 306.715263][ T2324] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 306.715566][ T2324] ? 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) 
[ 306.715871][ T2324] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 306.716190][ T2324] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 306.716495][ T2324] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 306.716804][ T2324] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 306.717120][ T2324] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 306.717429][ T2324] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 306.717740][ T2324] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 306.718056][ T2324] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 306.718356][ T2324] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 306.718747][ T2324] ___sys_sendmsg (net/socket.c:2670) 
[ 306.719058][ T2324] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 306.719362][ T2324] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 306.719673][ T2324] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 306.719976][ T2324] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 306.720293][ T2324] ? __handle_mm_fault (mm/memory.c:6212) 
[ 306.720595][ T2324] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 306.720895][ T2324] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 306.721244][ T2324] __sys_sendmsg (net/socket.c:2700) 
[ 306.721548][ T2324] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 306.721872][ T2324] ? 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) 
[ 306.722206][ T2324] ? 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) 
[ 306.722528][ T2324] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 306.722839][ T2324] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 306.723154][ T2324] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  306.723532][ T2324] RIP: 0033:0x7f1ae4e931e7
[ 306.723846][ T2324] 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)
[  306.724947][ T2324] RSP: 002b:00007fffff39d1b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  306.725417][ T2324] RAX: ffffffffffffffda RBX: 00007fffff39d8e0 RCX: 00007f1ae4e931e7
[  306.725875][ T2324] RDX: 0000000000000000 RSI: 00007fffff39d220 RDI: 0000000000000005
[  306.726346][ T2324] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[  306.726801][ T2324] R10: 00007f1ae4d8b6f8 R11: 0000000000000246 R12: 00007fffff39d910
[  306.727269][ T2324] R13: 00000000686e20ab R14: 0000000000499600 R15: 00007fffff39d310
| [  308.151766][ T2340] ------------[ cut here ]------------
| [ 308.152275][ T2340] WARNING: CPU: 1 PID: 2340 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) 
| [  308.153273][ T2340] Modules linked in: ip_gre gre
| [  308.154904][ T2340] Tainted: [W]=WARN
[  308.155339][ T2340] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 308.157542][ T2340] 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) 
[ 308.157949][ T2340] 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
[  308.159971][ T2340] RSP: 0018:ffffc90000677000 EFLAGS: 00010246
[  308.160496][ T2340] RAX: 0000000000000000 RBX: ffff888014abc000 RCX: 0000000000000001
[  308.161288][ T2340] RDX: 0000000000000000 RSI: ffffffffa5f10759 RDI: ffffffffa5658280
[  308.162096][ T2340] RBP: ffffc900006770e8 R08: ffff888014abc218 R09: 0000000000000000
[  308.162900][ T2340] R10: ffffc90000677118 R11: ffff888014abc000 R12: 1ffff920000cee04
[  308.163717][ T2340] R13: 00000000000005c4 R14: ffffc90000677118 R15: ffff888014abc218
[  308.164529][ T2340] FS:  00007facb327a800(0000) GS:ffff8880c4a19000(0000) knlGS:0000000000000000
[  308.165470][ T2340] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  308.166149][ T2340] CR2: 0000000000436890 CR3: 0000000005062003 CR4: 0000000000772ef0
[  308.166946][ T2340] PKRU: 55555554
[  308.167398][ T2340] Call Trace:
[  308.167793][ T2340]  <TASK>
[ 308.168077][ T2340] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 308.168615][ T2340] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 308.169154][ T2340] ? packet_notifier (net/packet/af_packet.c:4286) 
[ 308.169688][ T2340] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 308.170228][ T2340] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 308.170769][ T2340] netif_set_mtu (net/core/dev.c:9652) 
[ 308.171325][ T2340] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 308.171875][ T2340] ? __pfx_register_netdevice (net/core/dev.c:11036) 
[ 308.172427][ T2340] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 308.172837][ T2340] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 308.173386][ T2340] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 308.173934][ T2340] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 308.174481][ T2340] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 308.175171][ T2340] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 308.175717][ T2340] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 308.176265][ T2340] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 308.176800][ T2340] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 308.177340][ T2340] ? __dev_get_by_name (net/core/dev.c:865) 
[ 308.177868][ T2340] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 308.178414][ T2340] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 308.178956][ T2340] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 308.179507][ T2340] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 308.180065][ T2340] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 308.180614][ T2340] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 308.181169][ T2340] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 308.181727][ T2340] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 308.182269][ T2340] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 308.182812][ T2340] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 308.183367][ T2340] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 308.183900][ T2340] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 308.184449][ T2340] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 308.185007][ T2340] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 308.185533][ T2340] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 308.186083][ T2340] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 308.186635][ T2340] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 308.187187][ T2340] ? 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) 
[ 308.187719][ T2340] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 308.188269][ T2340] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 308.188795][ T2340] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 308.189349][ T2340] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 308.189884][ T2340] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 308.190440][ T2340] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 308.190981][ T2340] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 308.191539][ T2340] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 308.192079][ T2340] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 308.192769][ T2340] ___sys_sendmsg (net/socket.c:2670) 
[ 308.193314][ T2340] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 308.193842][ T2340] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 308.194390][ T2340] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 308.194914][ T2340] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 308.195474][ T2340] ? __handle_mm_fault (mm/memory.c:6212) 
[ 308.196019][ T2340] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 308.196541][ T2340] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 308.197120][ T2340] __sys_sendmsg (net/socket.c:2700) 
[ 308.197648][ T2340] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 308.198194][ T2340] ? 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) 
[ 308.198735][ T2340] ? 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) 
[ 308.199259][ T2340] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 308.199704][ T2340] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 308.200253][ T2340] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  308.200910][ T2340] RIP: 0033:0x7facb34471e7
[ 308.201472][ T2340] 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)
[  308.203205][ T2340] RSP: 002b:00007ffec29a8d38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  308.203833][ T2340] RAX: ffffffffffffffda RBX: 00007ffec29a9460 RCX: 00007facb34471e7
[  308.204642][ T2340] RDX: 0000000000000000 RSI: 00007ffec29a8da0 RDI: 0000000000000005
[  308.205466][ T2340] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[  308.206238][ T2340] R10: 00007facb333f6f8 R11: 0000000000000246 R12: 00007ffec29a9490
[  308.206847][ T2340] R13: 00000000686e20ac R14: 0000000000499600 R15: 00007ffec29a8e90
| [  309.708270][ T2356] ------------[ cut here ]------------
| [ 309.708679][ T2356] WARNING: CPU: 1 PID: 2356 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) 
| [  309.709386][ T2356] Modules linked in: ip_gre gre
| [  309.710450][ T2356] Tainted: [W]=WARN
[  309.710714][ T2356] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 309.711165][ T2356] 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) 
[ 309.711532][ T2356] 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
[  309.713867][ T2356] RSP: 0018:ffffc90000747000 EFLAGS: 00010246
[  309.714339][ T2356] RAX: 0000000000000000 RBX: ffff8880083b9000 RCX: 0000000000000001
[  309.714864][ T2356] RDX: 0000000000000000 RSI: ffffffffa5f10759 RDI: ffffffffa5658280
[  309.715403][ T2356] RBP: ffffc900007470e8 R08: ffff8880083b9218 R09: 0000000000000000
[  309.715930][ T2356] R10: ffffc90000747118 R11: ffff8880054215f0 R12: 1ffff920000e8e04
[  309.716454][ T2356] R13: 000000000000ffe7 R14: ffffc90000747118 R15: ffff8880083b9218
[  309.716971][ T2356] FS:  00007f1d71852800(0000) GS:ffff8880c4a19000(0000) knlGS:0000000000000000
[  309.717598][ T2356] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  309.718052][ T2356] CR2: 0000000000436890 CR3: 0000000019048005 CR4: 0000000000772ef0
[  309.718574][ T2356] PKRU: 55555554
[  309.718835][ T2356] Call Trace:
[  309.719112][ T2356]  <TASK>
[ 309.719299][ T2356] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 309.719730][ T2356] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 309.720090][ T2356] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 309.720437][ T2356] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 309.720800][ T2356] netif_set_mtu (net/core/dev.c:9652) 
[ 309.721177][ T2356] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 309.721542][ T2356] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 309.721812][ T2356] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 309.722174][ T2356] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 309.722546][ T2356] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 309.722901][ T2356] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 309.723362][ T2356] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 309.723720][ T2356] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 309.724077][ T2356] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 309.724427][ T2356] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 309.724769][ T2356] ? __dev_get_by_name (net/core/dev.c:865) 
[ 309.725141][ T2356] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 309.725492][ T2356] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 309.725849][ T2356] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 309.726202][ T2356] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 309.726561][ T2356] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 309.726917][ T2356] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 309.727287][ T2356] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 309.727648][ T2356] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 309.728005][ T2356] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 309.728357][ T2356] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 309.728707][ T2356] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 309.729068][ T2356] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 309.729420][ T2356] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 309.729769][ T2356] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 309.730124][ T2356] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 309.730478][ T2356] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 309.730835][ T2356] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 309.731206][ T2356] ? 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) 
[ 309.731557][ T2356] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 309.731905][ T2356] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 309.732258][ T2356] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 309.732623][ T2356] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 309.732977][ T2356] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 309.733329][ T2356] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 309.733692][ T2356] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 309.734054][ T2356] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 309.734401][ T2356] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 309.734840][ T2356] ___sys_sendmsg (net/socket.c:2670) 
[ 309.735207][ T2356] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 309.735554][ T2356] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 309.735903][ T2356] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 309.736266][ T2356] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 309.736615][ T2356] ? __handle_mm_fault (mm/memory.c:6212) 
[ 309.736960][ T2356] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 309.737321][ T2356] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 309.737689][ T2356] __sys_sendmsg (net/socket.c:2700) 
[ 309.738045][ T2356] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 309.738395][ T2356] ? 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) 
[ 309.738745][ T2356] ? 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) 
[ 309.739110][ T2356] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 309.739463][ T2356] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 309.739809][ T2356] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  309.740243][ T2356] RIP: 0033:0x7f1d71a1f1e7
[ 309.740597][ T2356] 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)
[  309.741838][ T2356] RSP: 002b:00007ffcd5e5ed18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  309.742367][ T2356] RAX: ffffffffffffffda RBX: 00007ffcd5e5f440 RCX: 00007f1d71a1f1e7
[  309.742897][ T2356] RDX: 0000000000000000 RSI: 00007ffcd5e5ed80 RDI: 0000000000000005
[  309.743438][ T2356] RBP: 0000000000000004 R08: 00000000000000b4 R09: 0000000000000000
[  309.743958][ T2356] R10: 00007f1d719176f8 R11: 0000000000000246 R12: 00007ffcd5e5f470
[  309.744482][ T2356] R13: 00000000686e20ae R14: 0000000000499600 R15: 00007ffcd5e5ee70
| [  311.229295][ T2372] ------------[ cut here ]------------
| [ 311.229722][ T2372] WARNING: CPU: 0 PID: 2372 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) 
| [  311.230441][ T2372] Modules linked in: ip_gre gre
| [  311.231525][ T2372] Tainted: [W]=WARN
[  311.231790][ T2372] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 311.232233][ T2372] 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) 
[ 311.232612][ T2372] 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
[  311.233856][ T2372] RSP: 0018:ffffc900007f7000 EFLAGS: 00010246
[  311.234324][ T2372] RAX: 0000000000000000 RBX: ffff88800a1dc000 RCX: 0000000000000001
[  311.234854][ T2372] RDX: 0000000000000000 RSI: ffffffffa5f10759 RDI: ffffffffa5658280
[  311.235384][ T2372] RBP: ffffc900007f70e8 R08: ffff88800a1dc218 R09: 0000000000000000
[  311.235926][ T2372] R10: ffffc900007f7118 R11: ffffffffa289be78 R12: 1ffff920000fee04
[  311.236453][ T2372] R13: 000000000000ffe7 R14: ffffc900007f7118 R15: ffff88800a1dc218
[  311.236973][ T2372] FS:  00007f80fc525800(0000) GS:ffff8880c4999000(0000) knlGS:0000000000000000
[  311.237589][ T2372] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  311.238047][ T2372] CR2: 0000000000436890 CR3: 0000000018cda004 CR4: 0000000000772ef0
[  311.238572][ T2372] PKRU: 55555554
[  311.238831][ T2372] Call Trace:
[  311.239101][ T2372]  <TASK>
[ 311.239279][ T2372] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 311.239710][ T2372] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 311.240074][ T2372] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 311.240425][ T2372] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 311.240786][ T2372] netif_set_mtu (net/core/dev.c:9652) 
[ 311.241147][ T2372] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 311.241514][ T2372] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 311.241778][ T2372] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 311.242151][ T2372] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 311.242509][ T2372] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 311.242878][ T2372] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 311.243321][ T2372] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 311.243681][ T2372] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 311.244039][ T2372] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 311.244389][ T2372] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 311.244733][ T2372] ? __dev_get_by_name (net/core/dev.c:865) 
[ 311.245091][ T2372] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 311.245435][ T2372] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 311.245783][ T2372] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 311.246167][ T2372] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 311.246537][ T2372] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 311.246892][ T2372] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 311.247254][ T2372] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 311.247615][ T2372] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 311.247965][ T2372] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 311.248326][ T2372] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 311.248672][ T2372] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 311.249033][ T2372] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 311.249389][ T2372] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 311.249741][ T2372] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 311.250200][ T2372] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 311.250520][ T2372] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 311.250838][ T2372] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 311.251151][ T2372] ? 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) 
[ 311.251464][ T2372] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 311.251780][ T2372] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 311.252097][ T2372] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 311.252419][ T2372] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 311.252744][ T2372] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 311.253060][ T2372] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 311.253372][ T2372] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 311.253680][ T2372] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 311.254016][ T2372] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 311.254415][ T2372] ___sys_sendmsg (net/socket.c:2670) 
[ 311.254728][ T2372] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 311.255045][ T2372] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 311.255356][ T2372] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 311.255662][ T2372] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 311.255975][ T2372] ? __handle_mm_fault (mm/memory.c:6212) 
[ 311.256290][ T2372] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 311.256602][ T2372] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 311.256926][ T2372] __sys_sendmsg (net/socket.c:2700) 
[ 311.257243][ T2372] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 311.257550][ T2372] ? 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) 
[ 311.257879][ T2372] ? 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) 
[ 311.258223][ T2372] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 311.258531][ T2372] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 311.258837][ T2372] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  311.259224][ T2372] RIP: 0033:0x7f80fc6f21e7
[ 311.259539][ T2372] 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)
[  311.260645][ T2372] RSP: 002b:00007fff23ad3cc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  311.261116][ T2372] RAX: ffffffffffffffda RBX: 00007fff23ad43f0 RCX: 00007f80fc6f21e7
[  311.261569][ T2372] RDX: 0000000000000000 RSI: 00007fff23ad3d30 RDI: 0000000000000005
[  311.262038][ T2372] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[  311.262500][ T2372] R10: 00007f80fc5ea6f8 R11: 0000000000000246 R12: 00007fff23ad4420
[  311.262971][ T2372] R13: 00000000686e20af R14: 0000000000499600 R15: 00007fff23ad3e20
| [  312.693926][ T2388] ------------[ cut here ]------------
| [ 312.694335][ T2388] WARNING: CPU: 2 PID: 2388 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) 
| [  312.694960][ T2388] Modules linked in: ip_gre gre
| [  312.695931][ T2388] Tainted: [W]=WARN
[  312.696189][ T2388] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 312.696579][ T2388] 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) 
[ 312.696909][ T2388] 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
[  312.698029][ T2388] RSP: 0018:ffffc900008e7000 EFLAGS: 00010246
[  312.698426][ T2388] RAX: 0000000000000000 RBX: ffff88800a13c000 RCX: 0000000000000001
[  312.698894][ T2388] RDX: 0000000000000000 RSI: ffffffffa5f10759 RDI: ffffffffa5658280
[  312.699370][ T2388] RBP: ffffc900008e70e8 R08: ffff88800a13c218 R09: 0000000000000000
[  312.699842][ T2388] R10: ffffc900008e7118 R11: ffff88800a13c000 R12: 1ffff9200011ce04
[  312.700319][ T2388] R13: 00000000000005c4 R14: ffffc900008e7118 R15: ffff88800a13c218
[  312.700830][ T2388] FS:  00007f3e321f3800(0000) GS:ffff8880c4a99000(0000) knlGS:0000000000000000
[  312.701380][ T2388] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  312.701784][ T2388] CR2: 0000000000436890 CR3: 00000000144dc002 CR4: 0000000000772ef0
[  312.702261][ T2388] PKRU: 55555554
[  312.702505][ T2388] Call Trace:
[  312.702765][ T2388]  <TASK>
[ 312.702934][ T2388] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 312.703264][ T2388] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 312.703580][ T2388] ? packet_notifier (net/packet/af_packet.c:4286) 
[ 312.703901][ T2388] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 312.704226][ T2388] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 312.704549][ T2388] netif_set_mtu (net/core/dev.c:9652) 
[ 312.704869][ T2388] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 312.705210][ T2388] ? __pfx_register_netdevice (net/core/dev.c:11036) 
[ 312.705530][ T2388] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 312.705776][ T2388] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 312.706110][ T2388] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 312.706491][ T2388] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 312.706813][ T2388] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 312.707214][ T2388] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 312.707542][ T2388] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 312.707866][ T2388] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 312.708208][ T2388] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 312.708531][ T2388] ? __dev_get_by_name (net/core/dev.c:865) 
[ 312.708848][ T2388] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 312.709174][ T2388] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 312.709497][ T2388] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 312.709911][ T2388] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 312.710245][ T2388] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 312.710579][ T2388] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 312.710899][ T2388] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 312.711244][ T2388] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 312.711557][ T2388] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 312.711876][ T2388] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 312.712201][ T2388] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 312.712522][ T2388] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 312.712854][ T2388] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 312.713184][ T2388] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 312.713505][ T2388] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 312.713824][ T2388] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 312.714189][ T2388] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 312.714506][ T2388] ? 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) 
[ 312.714848][ T2388] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 312.715178][ T2388] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 312.715511][ T2388] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 312.715837][ T2388] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 312.716192][ T2388] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 312.716511][ T2388] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 312.716837][ T2388] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 312.717181][ T2388] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 312.717498][ T2388] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 312.717897][ T2388] ___sys_sendmsg (net/socket.c:2670) 
[ 312.718232][ T2388] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 312.718548][ T2388] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 312.718867][ T2388] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 312.719187][ T2388] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 312.719536][ T2388] ? __handle_mm_fault (mm/memory.c:6212) 
[ 312.719851][ T2388] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 312.720175][ T2388] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 312.720517][ T2388] __sys_sendmsg (net/socket.c:2700) 
[ 312.720836][ T2388] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 312.721161][ T2388] ? 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) 
[ 312.721486][ T2388] ? 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) 
[ 312.721805][ T2388] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 312.722135][ T2388] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 312.722482][ T2388] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  312.722899][ T2388] RIP: 0033:0x7f3e323c01e7
[ 312.723235][ T2388] 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)
[  312.724338][ T2388] RSP: 002b:00007ffc50a2a9c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  312.724815][ T2388] RAX: ffffffffffffffda RBX: 00007ffc50a2b0f0 RCX: 00007f3e323c01e7
[  312.725289][ T2388] RDX: 0000000000000000 RSI: 00007ffc50a2aa30 RDI: 0000000000000005
[  312.725753][ T2388] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[  312.726226][ T2388] R10: 00007f3e322b86f8 R11: 0000000000000246 R12: 00007ffc50a2b120
[  312.726694][ T2388] R13: 00000000686e20b1 R14: 0000000000499600 R15: 00007ffc50a2ab20
| [  314.206164][ T2404] ------------[ cut here ]------------
| [ 314.206511][ T2404] WARNING: CPU: 1 PID: 2404 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) 
| [  314.208556][ T2404] Modules linked in: ip_gre gre
| [  314.209506][ T2404] Tainted: [W]=WARN
[  314.209740][ T2404] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 314.210145][ T2404] 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) 
[ 314.210467][ T2404] 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
[  314.211573][ T2404] RSP: 0018:ffffc900004f7000 EFLAGS: 00010246
[  314.211963][ T2404] RAX: 0000000000000000 RBX: ffff888015344000 RCX: 0000000000000001
[  314.212435][ T2404] RDX: 0000000000000000 RSI: ffffffffa5f10759 RDI: ffffffffa5658280
[  314.212919][ T2404] RBP: ffffc900004f70e8 R08: ffff888015344218 R09: 0000000000000000
[  314.213385][ T2404] R10: ffffc900004f7118 R11: ffffffffa698d1e0 R12: 1ffff9200009ee04
[  314.213842][ T2404] R13: 000000000000ffe7 R14: ffffc900004f7118 R15: ffff888015344218
[  314.214320][ T2404] FS:  00007ff5aa7b2800(0000) GS:ffff8880c4a19000(0000) knlGS:0000000000000000
[  314.214866][ T2404] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  314.215254][ T2404] CR2: 0000000000436890 CR3: 00000000151c8001 CR4: 0000000000772ef0
[  314.215709][ T2404] PKRU: 55555554
[  314.215938][ T2404] Call Trace:
[  314.216188][ T2404]  <TASK>
[ 314.216344][ T2404] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 314.216731][ T2404] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 314.217047][ T2404] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 314.217352][ T2404] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 314.217664][ T2404] netif_set_mtu (net/core/dev.c:9652) 
[ 314.217967][ T2404] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 314.218306][ T2404] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 314.218537][ T2404] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 314.218850][ T2404] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 314.219172][ T2404] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 314.219481][ T2404] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 314.219860][ T2404] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 314.220180][ T2404] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 314.220493][ T2404] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 314.220801][ T2404] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 314.221124][ T2404] ? __dev_get_by_name (net/core/dev.c:865) 
[ 314.221429][ T2404] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 314.221733][ T2404] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 314.222058][ T2404] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 314.222366][ T2404] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 314.222691][ T2404] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 314.223018][ T2404] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 314.223328][ T2404] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 314.223647][ T2404] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 314.223947][ T2404] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 314.224262][ T2404] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 314.224563][ T2404] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 314.224867][ T2404] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 314.225181][ T2404] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 314.225492][ T2404] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 314.225806][ T2404] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 314.226134][ T2404] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 314.226456][ T2404] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 314.226756][ T2404] ? 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) 
[ 314.227068][ T2404] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 314.227376][ T2404] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 314.227679][ T2404] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 314.228004][ T2404] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 314.228312][ T2404] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 314.228617][ T2404] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 314.228929][ T2404] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 314.229247][ T2404] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 314.229549][ T2404] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 314.229939][ T2404] ___sys_sendmsg (net/socket.c:2670) 
[ 314.230267][ T2404] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 314.230573][ T2404] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 314.230879][ T2404] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 314.231188][ T2404] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 314.231498][ T2404] ? __handle_mm_fault (mm/memory.c:6212) 
[ 314.231801][ T2404] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 314.232110][ T2404] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 314.232437][ T2404] __sys_sendmsg (net/socket.c:2700) 
[ 314.232750][ T2404] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 314.233060][ T2404] ? 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) 
[ 314.233371][ T2404] ? 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) 
[ 314.233676][ T2404] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 314.233982][ T2404] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 314.234311][ T2404] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  314.234693][ T2404] RIP: 0033:0x7ff5aa97f1e7
[ 314.235022][ T2404] 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)
[  314.236115][ T2404] RSP: 002b:00007ffd333d2748 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  314.236575][ T2404] RAX: ffffffffffffffda RBX: 00007ffd333d2e70 RCX: 00007ff5aa97f1e7
[  314.237039][ T2404] RDX: 0000000000000000 RSI: 00007ffd333d27b0 RDI: 0000000000000005
[  314.237494][ T2404] RBP: 0000000000000004 R08: 00000000000000b4 R09: 0000000000000000
[  314.237949][ T2404] R10: 00007ff5aa8776f8 R11: 0000000000000246 R12: 00007ffd333d2ea0
[  314.238422][ T2404] R13: 00000000686e20b2 R14: 0000000000499600 R15: 00007ffd333d28a0
| [  315.879889][ T2421] ------------[ cut here ]------------
| [ 315.880313][ T2421] WARNING: CPU: 0 PID: 2421 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) 
| [  315.881014][ T2421] Modules linked in: ip_gre gre
| [  315.882087][ T2421] Tainted: [W]=WARN
[  315.882352][ T2421] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 315.882796][ T2421] 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) 
[ 315.883167][ T2421] 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
[  315.884402][ T2421] RSP: 0018:ffffc90000a57000 EFLAGS: 00010246
[  315.884842][ T2421] RAX: 0000000000000000 RBX: ffff8880156a1000 RCX: 0000000000000001
[  315.885373][ T2421] RDX: 0000000000000000 RSI: ffffffffa5f10759 RDI: ffffffffa5658280
[  315.885890][ T2421] RBP: ffffc90000a570e8 R08: ffff8880156a1218 R09: 0000000000000000
[  315.886422][ T2421] R10: ffffc90000a57118 R11: ffffffffa698d1e0 R12: 1ffff9200014ae04
[  315.886949][ T2421] R13: 000000000000ffe7 R14: ffffc90000a57118 R15: ffff8880156a1218
[  315.887476][ T2421] FS:  00007f4b0f648800(0000) GS:ffff8880c4999000(0000) knlGS:0000000000000000
[  315.888094][ T2421] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  315.888530][ T2421] CR2: 0000000000436890 CR3: 000000000a2e4006 CR4: 0000000000772ef0
[  315.889068][ T2421] PKRU: 55555554
[  315.889429][ T2421] Call Trace:
[  315.889664][ T2421]  <TASK>
[ 315.889821][ T2421] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 315.890221][ T2421] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 315.890531][ T2421] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 315.890842][ T2421] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 315.891171][ T2421] netif_set_mtu (net/core/dev.c:9652) 
[ 315.891494][ T2421] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 315.891827][ T2421] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 315.892080][ T2421] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 315.892401][ T2421] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 315.892740][ T2421] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 315.893082][ T2421] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 315.893488][ T2421] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 315.893820][ T2421] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 315.894165][ T2421] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 315.894493][ T2421] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 315.894815][ T2421] ? __dev_get_by_name (net/core/dev.c:865) 
[ 315.895134][ T2421] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 315.895447][ T2421] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 315.895776][ T2421] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 315.896101][ T2421] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 315.896427][ T2421] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 315.896759][ T2421] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 315.897096][ T2421] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 315.897428][ T2421] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 315.897750][ T2421] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 315.898134][ T2421] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 315.898460][ T2421] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 315.898798][ T2421] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 315.899132][ T2421] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 315.899457][ T2421] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 315.899778][ T2421] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 315.900106][ T2421] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 315.900437][ T2421] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 315.900753][ T2421] ? 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) 
[ 315.901090][ T2421] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 315.901414][ T2421] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 315.901730][ T2421] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 315.902067][ T2421] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 315.902388][ T2421] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 315.902723][ T2421] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 315.903060][ T2421] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 315.903384][ T2421] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 315.903706][ T2421] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 315.904125][ T2421] ___sys_sendmsg (net/socket.c:2670) 
[ 315.904448][ T2421] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 315.904768][ T2421] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 315.905101][ T2421] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 315.905419][ T2421] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 315.905748][ T2421] ? __handle_mm_fault (mm/memory.c:6212) 
[ 315.906079][ T2421] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 315.906395][ T2421] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 315.906736][ T2421] __sys_sendmsg (net/socket.c:2700) 
[ 315.907068][ T2421] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 315.907391][ T2421] ? 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) 
[ 315.907714][ T2421] ? 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) 
[ 315.908050][ T2421] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 315.908372][ T2421] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 315.908693][ T2421] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  315.909099][ T2421] RIP: 0033:0x7f4b0f8151e7
[ 315.909429][ T2421] 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)
[  315.910578][ T2421] RSP: 002b:00007ffcb1423188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  315.911069][ T2421] RAX: ffffffffffffffda RBX: 00007ffcb14238b0 RCX: 00007f4b0f8151e7
[  315.911547][ T2421] RDX: 0000000000000000 RSI: 00007ffcb14231f0 RDI: 0000000000000005
[  315.912033][ T2421] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[  315.912516][ T2421] R10: 00007f4b0f70d6f8 R11: 0000000000000246 R12: 00007ffcb14238e0
[  315.913021][ T2421] R13: 00000000686e20b4 R14: 0000000000499600 R15: 00007ffcb14232e0
| [  317.462706][ T2438] ------------[ cut here ]------------
| [ 317.463056][ T2438] WARNING: CPU: 3 PID: 2438 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) 
| [  317.463662][ T2438] Modules linked in: ip_gre gre
| [  317.464603][ T2438] Tainted: [W]=WARN
[  317.464836][ T2438] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 317.465224][ T2438] 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) 
[ 317.465542][ T2438] 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
[  317.466652][ T2438] RSP: 0018:ffffc900007a7000 EFLAGS: 00010246
[  317.467048][ T2438] RAX: 0000000000000000 RBX: ffff888005d7c000 RCX: 0000000000000001
[  317.467510][ T2438] RDX: 0000000000000000 RSI: ffffffffa5f10759 RDI: ffffffffa5658280
[  317.467979][ T2438] RBP: ffffc900007a70e8 R08: ffff888005d7c218 R09: 0000000000000000
[  317.468446][ T2438] R10: ffffc900007a7118 R11: ffff888005d7c000 R12: 1ffff920000f4e04
[  317.468903][ T2438] R13: 00000000000005c4 R14: ffffc900007a7118 R15: ffff888005d7c218
[  317.469374][ T2438] FS:  00007fc6913b9800(0000) GS:ffff8880c4b19000(0000) knlGS:0000000000000000
[  317.469910][ T2438] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  317.470308][ T2438] CR2: 0000000000436890 CR3: 0000000004e59002 CR4: 0000000000772ef0
[  317.470779][ T2438] PKRU: 55555554
[  317.471021][ T2438] Call Trace:
[  317.471251][ T2438]  <TASK>
[ 317.471407][ T2438] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 317.471716][ T2438] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 317.472049][ T2438] ? packet_notifier (net/packet/af_packet.c:4286) 
[ 317.472358][ T2438] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 317.472674][ T2438] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 317.472984][ T2438] netif_set_mtu (net/core/dev.c:9652) 
[ 317.473304][ T2438] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 317.473624][ T2438] ? __pfx_register_netdevice (net/core/dev.c:11036) 
[ 317.473930][ T2438] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 317.474170][ T2438] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 317.474477][ T2438] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 317.474787][ T2438] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 317.475102][ T2438] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 317.475487][ T2438] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 317.475798][ T2438] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 317.476115][ T2438] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 317.476423][ T2438] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 317.476723][ T2438] ? __dev_get_by_name (net/core/dev.c:865) 
[ 317.477034][ T2438] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 317.477340][ T2438] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 317.477648][ T2438] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 317.477954][ T2438] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 317.478272][ T2438] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 317.478588][ T2438] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 317.478894][ T2438] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 317.479220][ T2438] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 317.479524][ T2438] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 317.479835][ T2438] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 317.480166][ T2438] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 317.480473][ T2438] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 317.480784][ T2438] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 317.481101][ T2438] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 317.481404][ T2438] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 317.481710][ T2438] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 317.482034][ T2438] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 317.482341][ T2438] ? 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) 
[ 317.482654][ T2438] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 317.482962][ T2438] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 317.483273][ T2438] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 317.483584][ T2438] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 317.483893][ T2438] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 317.484205][ T2438] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 317.484516][ T2438] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 317.484833][ T2438] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 317.485142][ T2438] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 317.485532][ T2438] ___sys_sendmsg (net/socket.c:2670) 
[ 317.485843][ T2438] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 317.486156][ T2438] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 317.486462][ T2438] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 317.486766][ T2438] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 317.487084][ T2438] ? __handle_mm_fault (mm/memory.c:6212) 
[ 317.487386][ T2438] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 317.487686][ T2438] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 317.488020][ T2438] __sys_sendmsg (net/socket.c:2700) 
[ 317.488322][ T2438] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 317.488625][ T2438] ? 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) 
[ 317.488941][ T2438] ? 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) 
[ 317.489253][ T2438] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 317.489561][ T2438] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 317.489869][ T2438] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  317.490261][ T2438] RIP: 0033:0x7fc6915861e7
[ 317.490578][ T2438] 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)
[  317.491668][ T2438] RSP: 002b:00007ffd179b6b18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  317.492131][ T2438] RAX: ffffffffffffffda RBX: 00007ffd179b7240 RCX: 00007fc6915861e7
[  317.492590][ T2438] RDX: 0000000000000000 RSI: 00007ffd179b6b80 RDI: 0000000000000005
[  317.493056][ T2438] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[  317.493510][ T2438] R10: 00007fc69147e6f8 R11: 0000000000000246 R12: 00007ffd179b7270
[  317.493961][ T2438] R13: 00000000686e20b6 R14: 0000000000499600 R15: 00007ffd179b6c70
| [  319.106715][ T2455] ------------[ cut here ]------------
| [ 319.107178][ T2455] WARNING: CPU: 0 PID: 2455 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) 
| [  319.107791][ T2455] Modules linked in: ip_gre gre
| [  319.108734][ T2455] Tainted: [W]=WARN
[  319.108966][ T2455] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 319.109368][ T2455] 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) 
[ 319.109686][ T2455] 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
[  319.110788][ T2455] RSP: 0018:ffffc900009e7000 EFLAGS: 00010246
[  319.111184][ T2455] RAX: 0000000000000000 RBX: ffff888009d2c000 RCX: 0000000000000001
[  319.111641][ T2455] RDX: 0000000000000000 RSI: ffffffffa5f10759 RDI: ffffffffa5658280
[  319.112132][ T2455] RBP: ffffc900009e70e8 R08: ffff888009d2c218 R09: 0000000000000000
[  319.112612][ T2455] R10: ffffc900009e7118 R11: ffffffffa698d1e0 R12: 1ffff9200013ce04
[  319.113080][ T2455] R13: 000000000000ffe7 R14: ffffc900009e7118 R15: ffff888009d2c218
[  319.113536][ T2455] FS:  00007fe7eae91800(0000) GS:ffff8880c4999000(0000) knlGS:0000000000000000
[  319.114081][ T2455] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  319.114469][ T2455] CR2: 00007fe7eaf91130 CR3: 000000001436a006 CR4: 0000000000772ef0
[  319.114932][ T2455] PKRU: 55555554
[  319.115170][ T2455] Call Trace:
[  319.115397][ T2455]  <TASK>
[ 319.115552][ T2455] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 319.115965][ T2455] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 319.116286][ T2455] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 319.116596][ T2455] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 319.116913][ T2455] netif_set_mtu (net/core/dev.c:9652) 
[ 319.117238][ T2455] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 319.117559][ T2455] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 319.117792][ T2455] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 319.118106][ T2455] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 319.118418][ T2455] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 319.118728][ T2455] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 319.119122][ T2455] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 319.119438][ T2455] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 319.119748][ T2455] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 319.120075][ T2455] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 319.120380][ T2455] ? __dev_get_by_name (net/core/dev.c:865) 
[ 319.120685][ T2455] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 319.121006][ T2455] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 319.121319][ T2455] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 319.121621][ T2455] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 319.121936][ T2455] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 319.122266][ T2455] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 319.122590][ T2455] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 319.122910][ T2455] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 319.123220][ T2455] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 319.123532][ T2455] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 319.123859][ T2455] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 319.124183][ T2455] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 319.124494][ T2455] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 319.124805][ T2455] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 319.125122][ T2455] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 319.125429][ T2455] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 319.125745][ T2455] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 319.126065][ T2455] ? 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) 
[ 319.126378][ T2455] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 319.126701][ T2455] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 319.127018][ T2455] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 319.127328][ T2455] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 319.127634][ T2455] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 319.127940][ T2455] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 319.128264][ T2455] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 319.128574][ T2455] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 319.128885][ T2455] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 319.129287][ T2455] ___sys_sendmsg (net/socket.c:2670) 
[ 319.129597][ T2455] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 319.129900][ T2455] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 319.130220][ T2455] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 319.130525][ T2455] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 319.130835][ T2455] ? __handle_mm_fault (mm/memory.c:6212) 
[ 319.131155][ T2455] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 319.131462][ T2455] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 319.131788][ T2455] __sys_sendmsg (net/socket.c:2700) 
[ 319.132105][ T2455] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 319.132409][ T2455] ? 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) 
[ 319.132739][ T2455] ? 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) 
[ 319.133056][ T2455] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 319.133370][ T2455] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 319.133674][ T2455] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  319.134061][ T2455] RIP: 0033:0x7fe7eb05e1e7
[ 319.134377][ T2455] 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)
[  319.135482][ T2455] RSP: 002b:00007ffdd7a7bb48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  319.135941][ T2455] RAX: ffffffffffffffda RBX: 00007ffdd7a7c270 RCX: 00007fe7eb05e1e7
[  319.136404][ T2455] RDX: 0000000000000000 RSI: 00007ffdd7a7bbb0 RDI: 0000000000000005
[  319.136858][ T2455] RBP: 0000000000000004 R08: 00000000000000b4 R09: 0000000000000000
[  319.137344][ T2455] R10: 00007fe7eaf566f8 R11: 0000000000000246 R12: 00007ffdd7a7c2a0
[  319.137804][ T2455] R13: 00000000686e20b7 R14: 0000000000499600 R15: 00007ffdd7a7bca0
| [  320.606134][ T2471] ------------[ cut here ]------------
| [ 320.606529][ T2471] WARNING: CPU: 2 PID: 2471 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) 
| [  320.607201][ T2471] Modules linked in: ip_gre gre
| [  320.608197][ T2471] Tainted: [W]=WARN
[  320.608451][ T2471] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 320.608849][ T2471] 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) 
[ 320.609197][ T2471] 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
[  320.610312][ T2471] RSP: 0018:ffffc90000c47000 EFLAGS: 00010246
[  320.610713][ T2471] RAX: 0000000000000000 RBX: ffff88800a13c000 RCX: 0000000000000001
[  320.611197][ T2471] RDX: 0000000000000000 RSI: ffffffffa5f10759 RDI: ffffffffa5658280
[  320.611665][ T2471] RBP: ffffc90000c470e8 R08: ffff88800a13c218 R09: 0000000000000000
[  320.612143][ T2471] R10: ffffc90000c47118 R11: ffffffffa698d1e0 R12: 1ffff92000188e04
[  320.612631][ T2471] R13: 000000000000ffe7 R14: ffffc90000c47118 R15: ffff88800a13c218
[  320.613134][ T2471] FS:  00007f89c91dc800(0000) GS:ffff8880c4a99000(0000) knlGS:0000000000000000
[  320.613690][ T2471] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  320.614221][ T2471] CR2: 0000000000436890 CR3: 0000000018fcf001 CR4: 0000000000772ef0
[  320.614696][ T2471] PKRU: 55555554
[  320.614945][ T2471] Call Trace:
[  320.615203][ T2471]  <TASK>
[ 320.615371][ T2471] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 320.615777][ T2471] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 320.616113][ T2471] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 320.616435][ T2471] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 320.616770][ T2471] netif_set_mtu (net/core/dev.c:9652) 
[ 320.617114][ T2471] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 320.617457][ T2471] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 320.617702][ T2471] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 320.618047][ T2471] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 320.618383][ T2471] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 320.618710][ T2471] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 320.619115][ T2471] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 320.619447][ T2471] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 320.619777][ T2471] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 320.620132][ T2471] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 320.620449][ T2471] ? __dev_get_by_name (net/core/dev.c:865) 
[ 320.620767][ T2471] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 320.621109][ T2471] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 320.621447][ T2471] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 320.621761][ T2471] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 320.622098][ T2471] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 320.622425][ T2471] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 320.622765][ T2471] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 320.623105][ T2471] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 320.623421][ T2471] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 320.623751][ T2471] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 320.624085][ T2471] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 320.624408][ T2471] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 320.624733][ T2471] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 320.625078][ T2471] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 320.625396][ T2471] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 320.625715][ T2471] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 320.626055][ T2471] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 320.626378][ T2471] ? 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) 
[ 320.626698][ T2471] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 320.627027][ T2471] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 320.627343][ T2471] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 320.627665][ T2471] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 320.627983][ T2471] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 320.628310][ T2471] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 320.628642][ T2471] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 320.628962][ T2471] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 320.629295][ T2471] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 320.629700][ T2471] ___sys_sendmsg (net/socket.c:2670) 
[ 320.630032][ T2471] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 320.630350][ T2471] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 320.630667][ T2471] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 320.630986][ T2471] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 320.631316][ T2471] ? __handle_mm_fault (mm/memory.c:6212) 
[ 320.631632][ T2471] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 320.631943][ T2471] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 320.632292][ T2471] __sys_sendmsg (net/socket.c:2700) 
[ 320.632621][ T2471] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 320.632946][ T2471] ? 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) 
[ 320.633291][ T2471] ? 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) 
[ 320.633613][ T2471] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 320.633933][ T2471] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 320.634262][ T2471] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  320.634649][ T2471] RIP: 0033:0x7f89c93a91e7
[ 320.634976][ T2471] 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)
[  320.636083][ T2471] RSP: 002b:00007ffdcce61668 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  320.636554][ T2471] RAX: ffffffffffffffda RBX: 00007ffdcce61d90 RCX: 00007f89c93a91e7
[  320.637041][ T2471] RDX: 0000000000000000 RSI: 00007ffdcce616d0 RDI: 0000000000000005
[  320.637515][ T2471] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[  320.637977][ T2471] R10: 00007f89c92a16f8 R11: 0000000000000246 R12: 00007ffdcce61dc0
[  320.638455][ T2471] R13: 00000000686e20b9 R14: 0000000000499600 R15: 00007ffdcce617c0
| [  322.091892][ T2487] ------------[ cut here ]------------
| [ 322.092361][ T2487] WARNING: CPU: 3 PID: 2487 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) 
| [  322.092984][ T2487] Modules linked in: ip_gre gre
| [  322.093944][ T2487] Tainted: [W]=WARN
[  322.094186][ T2487] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 322.094565][ T2487] 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) 
[ 322.094888][ T2487] 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
[  322.096032][ T2487] RSP: 0018:ffffc90000cb7000 EFLAGS: 00010246
[  322.096423][ T2487] RAX: 0000000000000000 RBX: ffff888013141000 RCX: 0000000000000001
[  322.096877][ T2487] RDX: 0000000000000000 RSI: ffffffffa5f10759 RDI: ffffffffa5658280
[  322.097340][ T2487] RBP: ffffc90000cb70e8 R08: ffff888013141218 R09: 0000000000000000
[  322.097803][ T2487] R10: ffffc90000cb7118 R11: ffff888013141000 R12: 1ffff92000196e04
[  322.098265][ T2487] R13: 00000000000005c4 R14: ffffc90000cb7118 R15: ffff888013141218
[  322.098718][ T2487] FS:  00007fcf2a893800(0000) GS:ffff8880c4b19000(0000) knlGS:0000000000000000
[  322.099293][ T2487] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  322.099679][ T2487] CR2: 0000000000436890 CR3: 0000000004d9a006 CR4: 0000000000772ef0
[  322.100165][ T2487] PKRU: 55555554
[  322.100396][ T2487] Call Trace:
[  322.100625][ T2487]  <TASK>
[ 322.100780][ T2487] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 322.101097][ T2487] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 322.101400][ T2487] ? packet_notifier (net/packet/af_packet.c:4286) 
[ 322.101704][ T2487] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 322.102020][ T2487] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 322.102375][ T2487] netif_set_mtu (net/core/dev.c:9652) 
[ 322.102885][ T2487] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 322.103428][ T2487] ? __pfx_register_netdevice (net/core/dev.c:11036) 
[ 322.103976][ T2487] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 322.104408][ T2487] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 322.104962][ T2487] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 322.105540][ T2487] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 322.106104][ T2487] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 322.106783][ T2487] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 322.107364][ T2487] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 322.107922][ T2487] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 322.108490][ T2487] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 322.109049][ T2487] ? __dev_get_by_name (net/core/dev.c:865) 
[ 322.109631][ T2487] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 322.110018][ T2487] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 322.110509][ T2487] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 322.110850][ T2487] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 322.111200][ T2487] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 322.111521][ T2487] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 322.111834][ T2487] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 322.112180][ T2487] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 322.112492][ T2487] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 322.112821][ T2487] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 322.113148][ T2487] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 322.113462][ T2487] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 322.113790][ T2487] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 322.114111][ T2487] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 322.114456][ T2487] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 322.114976][ T2487] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 322.115538][ T2487] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 322.116074][ T2487] ? 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) 
[ 322.116622][ T2487] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 322.117201][ T2487] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 322.117753][ T2487] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 322.118327][ T2487] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 322.118886][ T2487] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 322.119460][ T2487] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 322.120045][ T2487] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 322.120600][ T2487] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 322.121165][ T2487] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 322.121865][ T2487] ___sys_sendmsg (net/socket.c:2670) 
[ 322.122437][ T2487] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 322.123016][ T2487] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 322.123575][ T2487] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 322.124131][ T2487] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 322.124619][ T2487] ? __handle_mm_fault (mm/memory.c:6212) 
[ 322.125158][ T2487] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 322.125696][ T2487] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 322.126296][ T2487] __sys_sendmsg (net/socket.c:2700) 
[ 322.126854][ T2487] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 322.127406][ T2487] ? 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) 
[ 322.127967][ T2487] ? 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) 
[ 322.128527][ T2487] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 322.129089][ T2487] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 322.129629][ T2487] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  322.130312][ T2487] RIP: 0033:0x7fcf2aa601e7
[ 322.130889][ T2487] 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)
[  322.132860][ T2487] RSP: 002b:00007ffecdb84d58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  322.133653][ T2487] RAX: ffffffffffffffda RBX: 00007ffecdb85480 RCX: 00007fcf2aa601e7
[  322.134445][ T2487] RDX: 0000000000000000 RSI: 00007ffecdb84dc0 RDI: 0000000000000005
[  322.135235][ T2487] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[  322.136077][ T2487] R10: 00007fcf2a9586f8 R11: 0000000000000246 R12: 00007ffecdb854b0
[  322.136873][ T2487] R13: 00000000686e20ba R14: 0000000000499600 R15: 00007ffecdb84eb0
| [  323.630372][ T2503] ------------[ cut here ]------------
| [ 323.630766][ T2503] WARNING: CPU: 2 PID: 2503 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) 
| [  323.631409][ T2503] Modules linked in: ip_gre gre
| [  323.632379][ T2503] Tainted: [W]=WARN
[  323.632632][ T2503] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 323.633043][ T2503] 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) 
[ 323.633371][ T2503] 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
[  323.634486][ T2503] RSP: 0018:ffffc90000d67000 EFLAGS: 00010246
[  323.634891][ T2503] RAX: 0000000000000000 RBX: ffff888009649000 RCX: 0000000000000001
[  323.635376][ T2503] RDX: 0000000000000000 RSI: ffffffffa5f10759 RDI: ffffffffa5658280
[  323.635852][ T2503] RBP: ffffc90000d670e8 R08: ffff888009649218 R09: 0000000000000000
[  323.636339][ T2503] R10: ffffc90000d67118 R11: ffffffffa698d1e0 R12: 1ffff920001ace04
[  323.636808][ T2503] R13: 000000000000ffd9 R14: ffffc90000d67118 R15: ffff888009649218
[  323.637292][ T2503] FS:  00007f9fab43f800(0000) GS:ffff8880c4a99000(0000) knlGS:0000000000000000
[  323.637839][ T2503] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  323.638254][ T2503] CR2: 0000000000436890 CR3: 000000001687c005 CR4: 0000000000772ef0
[  323.638735][ T2503] PKRU: 55555554
[  323.638978][ T2503] Call Trace:
[  323.639233][ T2503]  <TASK>
[ 323.639400][ T2503] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 323.639793][ T2503] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 323.640131][ T2503] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 323.640459][ T2503] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 323.640785][ T2503] netif_set_mtu (net/core/dev.c:9652) 
[ 323.641113][ T2503] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 323.641444][ T2503] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 323.641761][ T2503] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 323.642021][ T2503] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 323.642338][ T2503] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 323.642683][ T2503] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 323.643027][ T2503] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 323.643421][ T2503] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 323.643748][ T2503] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 323.644081][ T2503] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 323.644399][ T2503] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 323.644717][ T2503] ? __dev_get_by_name (net/core/dev.c:865) 
[ 323.645045][ T2503] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 323.645368][ T2503] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 323.645689][ T2503] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 323.646017][ T2503] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 323.646340][ T2503] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 323.646669][ T2503] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 323.647006][ T2503] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 323.647338][ T2503] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 323.647659][ T2503] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 323.647981][ T2503] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 323.648311][ T2503] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 323.648630][ T2503] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 323.648951][ T2503] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 323.649287][ T2503] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 323.649609][ T2503] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 323.649927][ T2503] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 323.650275][ T2503] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 323.650591][ T2503] ? 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) 
[ 323.650911][ T2503] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 323.651248][ T2503] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 323.651566][ T2503] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 323.651889][ T2503] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 323.652241][ T2503] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 323.652579][ T2503] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 323.652910][ T2503] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 323.653242][ T2503] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 323.653559][ T2503] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 323.653964][ T2503] ___sys_sendmsg (net/socket.c:2670) 
[ 323.654297][ T2503] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 323.654614][ T2503] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 323.654940][ T2503] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 323.655265][ T2503] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 323.655588][ T2503] ? __handle_mm_fault (mm/memory.c:6212) 
[ 323.655903][ T2503] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 323.656228][ T2503] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 323.656565][ T2503] __sys_sendmsg (net/socket.c:2700) 
[ 323.656887][ T2503] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 323.657220][ T2503] ? 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) 
[ 323.657548][ T2503] ? 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) 
[ 323.657864][ T2503] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 323.658196][ T2503] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 323.658514][ T2503] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  323.658901][ T2503] RIP: 0033:0x7f9fab60c1e7
[ 323.659235][ T2503] 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)
[  323.660352][ T2503] RSP: 002b:00007ffc0367e068 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  323.660822][ T2503] RAX: ffffffffffffffda RBX: 00007ffc0367e790 RCX: 00007f9fab60c1e7
[  323.661305][ T2503] RDX: 0000000000000000 RSI: 00007ffc0367e0d0 RDI: 0000000000000005
[  323.661771][ T2503] RBP: 0000000000000004 R08: 00000000000000b8 R09: 0000000000000000
[  323.662249][ T2503] R10: 00007f9fab5046f8 R11: 0000000000000246 R12: 00007ffc0367e7c0
[  323.662726][ T2503] R13: 00000000686e20bc R14: 0000000000499600 R15: 00007ffc0367e1c4
| [  325.136196][ T2519] ------------[ cut here ]------------
| [ 325.136663][ T2519] WARNING: CPU: 2 PID: 2519 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) 
| [  325.137305][ T2519] Modules linked in: ip_gre gre
| [  325.138290][ T2519] Tainted: [W]=WARN
[  325.138541][ T2519] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 325.138939][ T2519] 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) 
[ 325.139286][ T2519] 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
[  325.140406][ T2519] RSP: 0018:ffffc90000e17000 EFLAGS: 00010246
[  325.140806][ T2519] RAX: 0000000000000000 RBX: ffff888016221000 RCX: 0000000000000001
[  325.141281][ T2519] RDX: 0000000000000000 RSI: ffffffffa5f10759 RDI: ffffffffa5658280
[  325.141753][ T2519] RBP: ffffc90000e170e8 R08: ffff888016221218 R09: 0000000000000000
[  325.142231][ T2519] R10: ffffc90000e17118 R11: ffffffffa698d1e0 R12: 1ffff920001c2e04
[  325.142714][ T2519] R13: 000000000000ffd9 R14: ffffc90000e17118 R15: ffff888016221218
[  325.143206][ T2519] FS:  00007f7a2b421800(0000) GS:ffff8880c4a99000(0000) knlGS:0000000000000000
[  325.143760][ T2519] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  325.144169][ T2519] CR2: 00007f7a2b521130 CR3: 0000000004e69001 CR4: 0000000000772ef0
[  325.144647][ T2519] PKRU: 55555554
[  325.144889][ T2519] Call Trace:
[  325.145138][ T2519]  <TASK>
[ 325.145308][ T2519] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 325.145701][ T2519] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 325.146035][ T2519] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 325.146365][ T2519] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 325.146694][ T2519] netif_set_mtu (net/core/dev.c:9652) 
[ 325.147027][ T2519] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 325.147360][ T2519] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 325.147678][ T2519] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 325.148069][ T2519] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 325.148396][ T2519] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 325.148723][ T2519] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 325.149058][ T2519] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 325.149453][ T2519] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 325.149785][ T2519] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 325.150116][ T2519] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 325.150440][ T2519] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 325.150756][ T2519] ? __dev_get_by_name (net/core/dev.c:865) 
[ 325.151102][ T2519] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 325.151419][ T2519] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 325.151754][ T2519] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 325.152080][ T2519] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 325.152408][ T2519] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 325.152746][ T2519] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 325.153097][ T2519] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 325.153428][ T2519] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 325.153747][ T2519] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 325.154078][ T2519] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 325.154397][ T2519] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 325.154715][ T2519] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 325.155047][ T2519] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 325.155375][ T2519] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 325.155693][ T2519] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 325.156023][ T2519] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 325.156353][ T2519] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 325.156669][ T2519] ? 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) 
[ 325.156999][ T2519] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 325.157322][ T2519] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 325.157647][ T2519] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 325.157972][ T2519] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 325.158305][ T2519] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 325.158624][ T2519] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 325.158947][ T2519] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 325.159278][ T2519] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 325.159591][ T2519] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 325.160013][ T2519] ___sys_sendmsg (net/socket.c:2670) 
[ 325.160334][ T2519] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 325.160655][ T2519] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 325.160973][ T2519] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 325.161302][ T2519] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 325.161621][ T2519] ? __handle_mm_fault (mm/memory.c:6212) 
[ 325.161938][ T2519] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 325.162270][ T2519] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 325.162614][ T2519] __sys_sendmsg (net/socket.c:2700) 
[ 325.162931][ T2519] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 325.163258][ T2519] ? 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) 
[ 325.163580][ T2519] ? 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) 
[ 325.163900][ T2519] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 325.164233][ T2519] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 325.164560][ T2519] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  325.164950][ T2519] RIP: 0033:0x7f7a2b5ee1e7
[ 325.165295][ T2519] 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)
[  325.166413][ T2519] RSP: 002b:00007ffc86e5d488 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  325.166895][ T2519] RAX: ffffffffffffffda RBX: 00007ffc86e5dbb0 RCX: 00007f7a2b5ee1e7
[  325.167377][ T2519] RDX: 0000000000000000 RSI: 00007ffc86e5d4f0 RDI: 0000000000000005
[  325.167848][ T2519] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[  325.168327][ T2519] R10: 00007f7a2b4e66f8 R11: 0000000000000246 R12: 00007ffc86e5dbe0
[  325.168805][ T2519] R13: 00000000686e20bd R14: 0000000000499600 R15: 00007ffc86e5d5e4
| [  326.570805][ T2535] ------------[ cut here ]------------
| [ 326.571199][ T2535] WARNING: CPU: 1 PID: 2535 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) 
| [  326.571835][ T2535] Modules linked in: ip_gre gre
| [  326.572860][ T2535] Tainted: [W]=WARN
[  326.574672][ T2535] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 326.575184][ T2535] 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) 
[ 326.575514][ T2535] 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
[  326.576685][ T2535] RSP: 0018:ffffc90000ee7000 EFLAGS: 00010246
[  326.577114][ T2535] RAX: 0000000000000000 RBX: ffff888005a5c000 RCX: 0000000000000001
[  326.577593][ T2535] RDX: 0000000000000000 RSI: ffffffffa5f10759 RDI: ffffffffa5658280
[  326.578080][ T2535] RBP: ffffc90000ee70e8 R08: ffff888005a5c218 R09: 0000000000000000
[  326.578560][ T2535] R10: ffffc90000ee7118 R11: 5a1a3f13268da5e3 R12: 1ffff920001dce04
[  326.579046][ T2535] R13: 00000000000005b6 R14: ffffc90000ee7118 R15: ffff888005a5c218
[  326.579531][ T2535] FS:  00007f4383183800(0000) GS:ffff8880c4a19000(0000) knlGS:0000000000000000
[  326.580103][ T2535] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  326.580510][ T2535] CR2: 0000000000436890 CR3: 0000000009acc006 CR4: 0000000000772ef0
[  326.581000][ T2535] PKRU: 55555554
[  326.581243][ T2535] Call Trace:
[  326.581484][ T2535]  <TASK>
[ 326.581647][ T2535] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 326.581972][ T2535] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 326.582311][ T2535] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 326.582645][ T2535] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 326.582980][ T2535] netif_set_mtu (net/core/dev.c:9652) 
[ 326.583314][ T2535] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 326.583648][ T2535] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 326.583970][ T2535] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 326.584231][ T2535] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 326.584567][ T2535] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 326.584895][ T2535] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 326.585229][ T2535] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 326.585637][ T2535] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 326.585968][ T2535] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 326.586298][ T2535] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 326.586621][ T2535] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 326.586941][ T2535] ? __dev_get_by_name (net/core/dev.c:865) 
[ 326.587271][ T2535] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 326.587595][ T2535] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 326.587923][ T2535] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 326.588258][ T2535] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 326.588593][ T2535] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 326.588923][ T2535] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 326.589254][ T2535] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 326.589588][ T2535] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 326.589903][ T2535] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 326.590232][ T2535] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 326.590548][ T2535] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 326.590867][ T2535] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 326.591207][ T2535] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 326.591541][ T2535] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 326.591859][ T2535] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 326.592198][ T2535] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 326.592530][ T2535] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 326.592856][ T2535] ? 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) 
[ 326.593186][ T2535] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 326.593515][ T2535] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 326.593835][ T2535] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 326.594170][ T2535] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 326.594494][ T2535] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 326.594812][ T2535] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 326.595150][ T2535] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 326.595481][ T2535] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 326.595804][ T2535] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 326.596232][ T2535] ___sys_sendmsg (net/socket.c:2670) 
[ 326.596560][ T2535] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 326.596879][ T2535] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 326.597211][ T2535] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 326.597531][ T2535] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 326.597855][ T2535] ? __handle_mm_fault (mm/memory.c:6212) 
[ 326.598188][ T2535] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 326.598507][ T2535] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 326.598847][ T2535] __sys_sendmsg (net/socket.c:2700) 
[ 326.599178][ T2535] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 326.599571][ T2535] ? 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) 
[ 326.599906][ T2535] ? 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) 
[ 326.600264][ T2535] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 326.600591][ T2535] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 326.600915][ T2535] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  326.601319][ T2535] RIP: 0033:0x7f43833501e7
[ 326.601663][ T2535] 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)
[  326.602832][ T2535] RSP: 002b:00007ffce697d818 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  326.603324][ T2535] RAX: ffffffffffffffda RBX: 00007ffce697df40 RCX: 00007f43833501e7
[  326.603803][ T2535] RDX: 0000000000000000 RSI: 00007ffce697d880 RDI: 0000000000000005
[  326.604303][ T2535] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[  326.604793][ T2535] R10: 00007f43832486f8 R11: 0000000000000246 R12: 00007ffce697df70
[  326.605277][ T2535] R13: 00000000686e20bf R14: 0000000000499600 R15: 00007ffce697d974
| [  328.014960][ T2551] ------------[ cut here ]------------
| [ 328.015412][ T2551] WARNING: CPU: 2 PID: 2551 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) 
| [  328.016099][ T2551] Modules linked in: ip_gre gre
| [  328.018343][ T2551] Tainted: [W]=WARN
[  328.018621][ T2551] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 328.019044][ T2551] 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) 
[ 328.019392][ T2551] 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
[  328.020578][ T2551] RSP: 0018:ffffc90000e97000 EFLAGS: 00010246
[  328.021046][ T2551] RAX: 0000000000000000 RBX: ffff888012669000 RCX: 0000000000000001
[  328.021540][ T2551] RDX: 0000000000000000 RSI: ffffffffa5f10759 RDI: ffffffffa5658280
[  328.022040][ T2551] RBP: ffffc90000e970e8 R08: ffff888012669218 R09: 0000000000000000
[  328.022540][ T2551] R10: ffffc90000e97118 R11: ffffffffa698d1e0 R12: 1ffff920001d2e04
[  328.023081][ T2551] R13: 000000000000ffd9 R14: ffffc90000e97118 R15: ffff888012669218
[  328.023573][ T2551] FS:  00007ff0c0bd6800(0000) GS:ffff8880c4a99000(0000) knlGS:0000000000000000
[  328.024175][ T2551] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  328.024626][ T2551] CR2: 0000000000436890 CR3: 0000000018d0a004 CR4: 0000000000772ef0
[  328.025148][ T2551] PKRU: 55555554
[  328.025411][ T2551] Call Trace:
[  328.025665][ T2551]  <TASK>
[ 328.025842][ T2551] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 328.026269][ T2551] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 328.026609][ T2551] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 328.026945][ T2551] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 328.027308][ T2551] netif_set_mtu (net/core/dev.c:9652) 
[ 328.027642][ T2551] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 328.028019][ T2551] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 328.028386][ T2551] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 328.028648][ T2551] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 328.028981][ T2551] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 328.029337][ T2551] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 328.029673][ T2551] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 328.030122][ T2551] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 328.030464][ T2551] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 328.030803][ T2551] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 328.031150][ T2551] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 328.031483][ T2551] ? __dev_get_by_name (net/core/dev.c:865) 
[ 328.031813][ T2551] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 328.032174][ T2551] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 328.032550][ T2551] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 328.032901][ T2551] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 328.033255][ T2551] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 328.033606][ T2551] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 328.033948][ T2551] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 328.034311][ T2551] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 328.034642][ T2551] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 328.034986][ T2551] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 328.035352][ T2551] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 328.035692][ T2551] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 328.036079][ T2551] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 328.036429][ T2551] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 328.036766][ T2551] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 328.037119][ T2551] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 328.037465][ T2551] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 328.037806][ T2551] ? 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) 
[ 328.038163][ T2551] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 328.038501][ T2551] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 328.038832][ T2551] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 328.039183][ T2551] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 328.039524][ T2551] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 328.039858][ T2551] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 328.040236][ T2551] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 328.040599][ T2551] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 328.040931][ T2551] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 328.041366][ T2551] ___sys_sendmsg (net/socket.c:2670) 
[ 328.041702][ T2551] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 328.042044][ T2551] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 328.042381][ T2551] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 328.042730][ T2551] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 328.043084][ T2551] ? __handle_mm_fault (mm/memory.c:6212) 
[ 328.043422][ T2551] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 328.043757][ T2551] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 328.044154][ T2551] __sys_sendmsg (net/socket.c:2700) 
[ 328.044507][ T2551] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 328.044852][ T2551] ? 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) 
[ 328.045209][ T2551] ? 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) 
[ 328.045545][ T2551] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 328.045880][ T2551] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 328.046223][ T2551] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  328.046637][ T2551] RIP: 0033:0x7ff0c0da31e7
[ 328.046978][ T2551] 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)
[  328.048166][ T2551] RSP: 002b:00007ffcb0ee3e68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  328.048697][ T2551] RAX: ffffffffffffffda RBX: 00007ffcb0ee4590 RCX: 00007ff0c0da31e7
[  328.049205][ T2551] RDX: 0000000000000000 RSI: 00007ffcb0ee3ed0 RDI: 0000000000000005
[  328.049704][ T2551] RBP: 0000000000000004 R08: 00000000000000b8 R09: 0000000000000000
[  328.050207][ T2551] R10: 00007ff0c0c9b6f8 R11: 0000000000000246 R12: 00007ffcb0ee45c0
[  328.050701][ T2551] R13: 00000000686e20c0 R14: 0000000000499600 R15: 00007ffcb0ee3fc4
| [  329.523153][ T2567] ------------[ cut here ]------------
| [ 329.523501][ T2567] WARNING: CPU: 0 PID: 2567 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) 
| [  329.524116][ T2567] Modules linked in: ip_gre gre
| [  329.525075][ T2567] Tainted: [W]=WARN
[  329.525310][ T2567] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 329.525695][ T2567] 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) 
[ 329.526022][ T2567] 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
[  329.527121][ T2567] RSP: 0018:ffffc90001047000 EFLAGS: 00010246
[  329.527506][ T2567] RAX: 0000000000000000 RBX: ffff888013664000 RCX: 0000000000000001
[  329.527963][ T2567] RDX: 0000000000000000 RSI: ffffffffa5f10759 RDI: ffffffffa5658280
[  329.528440][ T2567] RBP: ffffc900010470e8 R08: ffff888013664218 R09: 0000000000000000
[  329.528893][ T2567] R10: ffffc90001047118 R11: ffffffffa698d1e0 R12: 1ffff92000208e04
[  329.529375][ T2567] R13: 000000000000ffd9 R14: ffffc90001047118 R15: ffff888013664218
[  329.529834][ T2567] FS:  00007fe574208800(0000) GS:ffff8880c4999000(0000) knlGS:0000000000000000
[  329.530386][ T2567] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  329.530773][ T2567] CR2: 0000000000436890 CR3: 0000000013b32001 CR4: 0000000000772ef0
[  329.531243][ T2567] PKRU: 55555554
[  329.531474][ T2567] Call Trace:
[  329.531703][ T2567]  <TASK>
[ 329.531858][ T2567] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 329.532253][ T2567] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 329.532583][ T2567] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 329.532892][ T2567] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 329.533233][ T2567] netif_set_mtu (net/core/dev.c:9652) 
[ 329.533542][ T2567] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 329.533858][ T2567] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 329.534177][ T2567] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 329.534407][ T2567] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 329.534715][ T2567] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 329.535041][ T2567] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 329.535359][ T2567] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 329.535739][ T2567] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 329.536066][ T2567] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 329.536375][ T2567] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 329.536685][ T2567] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 329.536988][ T2567] ? __dev_get_by_name (net/core/dev.c:865) 
[ 329.537342][ T2567] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 329.537643][ T2567] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 329.537952][ T2567] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 329.538275][ T2567] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 329.538586][ T2567] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 329.538901][ T2567] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 329.539225][ T2567] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 329.539544][ T2567] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 329.539846][ T2567] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 329.540165][ T2567] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 329.540472][ T2567] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 329.540783][ T2567] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 329.541122][ T2567] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 329.541457][ T2567] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 329.541861][ T2567] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 329.542212][ T2567] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 329.542533][ T2567] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 329.542900][ T2567] ? 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) 
[ 329.543350][ T2567] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 329.543707][ T2567] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 329.544122][ T2567] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 329.544671][ T2567] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 329.544981][ T2567] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 329.545331][ T2567] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 329.545650][ T2567] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 329.545967][ T2567] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 329.546292][ T2567] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 329.546684][ T2567] ___sys_sendmsg (net/socket.c:2670) 
[ 329.547098][ T2567] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 329.547434][ T2567] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 329.547831][ T2567] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 329.548215][ T2567] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 329.548558][ T2567] ? __handle_mm_fault (mm/memory.c:6212) 
[ 329.548954][ T2567] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 329.549299][ T2567] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 329.549715][ T2567] __sys_sendmsg (net/socket.c:2700) 
[ 329.550099][ T2567] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 329.550469][ T2567] ? 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) 
[ 329.550830][ T2567] ? 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) 
[ 329.551173][ T2567] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 329.551542][ T2567] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 329.551910][ T2567] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  329.552444][ T2567] RIP: 0033:0x7fe5743d51e7
[ 329.553024][ T2567] 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)
[  329.554267][ T2567] RSP: 002b:00007ffe779ecf98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  329.554821][ T2567] RAX: ffffffffffffffda RBX: 00007ffe779ed6c0 RCX: 00007fe5743d51e7
[  329.555432][ T2567] RDX: 0000000000000000 RSI: 00007ffe779ed000 RDI: 0000000000000005
[  329.555918][ T2567] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[  329.556406][ T2567] R10: 00007fe5742cd6f8 R11: 0000000000000246 R12: 00007ffe779ed6f0
[  329.556862][ T2567] R13: 00000000686e20c2 R14: 0000000000499600 R15: 00007ffe779ed0f4
| [  331.138351][ T2583] ------------[ cut here ]------------
| [ 331.138811][ T2583] WARNING: CPU: 3 PID: 2583 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) 
| [  331.139526][ T2583] Modules linked in: ip_gre gre
| [  331.140594][ T2583] Tainted: [W]=WARN
[  331.140855][ T2583] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 331.141294][ T2583] 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) 
[ 331.141652][ T2583] 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
[  331.142928][ T2583] RSP: 0018:ffffc90001127000 EFLAGS: 00010246
[  331.143389][ T2583] RAX: 0000000000000000 RBX: ffff888008c01000 RCX: 0000000000000001
[  331.143910][ T2583] RDX: 0000000000000000 RSI: ffffffffa5f10759 RDI: ffffffffa5658280
[  331.144444][ T2583] RBP: ffffc900011270e8 R08: ffff888008c01218 R09: 0000000000000000
[  331.144963][ T2583] R10: ffffc90001127118 R11: be9ddde7463473cd R12: 1ffff92000224e04
[  331.145488][ T2583] R13: 00000000000005b6 R14: ffffc90001127118 R15: ffff888008c01218
[  331.146030][ T2583] FS:  00007f490be86800(0000) GS:ffff8880c4b19000(0000) knlGS:0000000000000000
[  331.146641][ T2583] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  331.147122][ T2583] CR2: 0000000000436890 CR3: 000000000980c002 CR4: 0000000000772ef0
[  331.147643][ T2583] PKRU: 55555554
[  331.147903][ T2583] Call Trace:
[  331.148197][ T2583]  <TASK>
[ 331.148378][ T2583] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 331.148729][ T2583] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 331.149093][ T2583] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 331.149441][ T2583] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 331.149796][ T2583] netif_set_mtu (net/core/dev.c:9652) 
[ 331.150155][ T2583] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 331.150519][ T2583] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 331.150870][ T2583] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 331.151158][ T2583] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 331.151526][ T2583] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 331.151881][ T2583] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 331.152256][ T2583] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 331.152701][ T2583] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 331.153087][ T2583] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 331.153441][ T2583] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 331.153792][ T2583] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 331.154146][ T2583] ? __dev_get_by_name (net/core/dev.c:865) 
[ 331.154497][ T2583] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 331.154848][ T2583] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 331.155219][ T2583] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 331.155567][ T2583] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 331.155920][ T2583] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 331.156288][ T2583] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 331.156642][ T2583] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 331.157012][ T2583] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 331.157360][ T2583] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 331.157720][ T2583] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 331.158079][ T2583] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 331.158425][ T2583] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 331.158776][ T2583] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 331.159147][ T2583] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 331.159494][ T2583] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 331.159839][ T2583] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 331.160211][ T2583] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 331.160557][ T2583] ? 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) 
[ 331.160901][ T2583] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 331.161258][ T2583] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 331.161601][ T2583] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 331.161955][ T2583] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 331.162317][ T2583] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 331.162688][ T2583] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 331.163060][ T2583] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 331.163413][ T2583] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 331.163755][ T2583] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 331.164208][ T2583] ___sys_sendmsg (net/socket.c:2670) 
[ 331.164562][ T2583] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 331.164904][ T2583] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 331.165268][ T2583] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 331.165613][ T2583] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 331.165961][ T2583] ? __handle_mm_fault (mm/memory.c:6212) 
[ 331.166319][ T2583] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 331.166669][ T2583] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 331.167055][ T2583] __sys_sendmsg (net/socket.c:2700) 
[ 331.167408][ T2583] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 331.167757][ T2583] ? 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) 
[ 331.168120][ T2583] ? 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) 
[ 331.168469][ T2583] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 331.168814][ T2583] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 331.169172][ T2583] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  331.169603][ T2583] RIP: 0033:0x7f490c0531e7
[ 331.169956][ T2583] 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)
[  331.171208][ T2583] RSP: 002b:00007ffdd6fc5d98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  331.171733][ T2583] RAX: ffffffffffffffda RBX: 00007ffdd6fc64c0 RCX: 00007f490c0531e7
[  331.172257][ T2583] RDX: 0000000000000000 RSI: 00007ffdd6fc5e00 RDI: 0000000000000005
[  331.172791][ T2583] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[  331.173318][ T2583] R10: 00007f490bf4b6f8 R11: 0000000000000246 R12: 00007ffdd6fc64f0
[  331.173840][ T2583] R13: 00000000686e20c3 R14: 0000000000499600 R15: 00007ffdd6fc5ef4
| [  332.627247][ T2599] ------------[ cut here ]------------
| [ 332.627681][ T2599] WARNING: CPU: 0 PID: 2599 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) 
| [  332.628305][ T2599] Modules linked in: ip_gre gre
| [  332.629251][ T2599] Tainted: [W]=WARN
[  332.629484][ T2599] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 332.629867][ T2599] 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) 
[ 332.630188][ T2599] 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
[  332.631291][ T2599] RSP: 0018:ffffc900011c7000 EFLAGS: 00010246
[  332.631678][ T2599] RAX: 0000000000000000 RBX: ffff8880168f9000 RCX: 0000000000000001
[  332.632146][ T2599] RDX: 0000000000000000 RSI: ffffffffa5f10759 RDI: ffffffffa5658280
[  332.632609][ T2599] RBP: ffffc900011c70e8 R08: ffff8880168f9218 R09: 0000000000000000
[  332.633074][ T2599] R10: ffffc900011c7118 R11: ffffffffa698d1e0 R12: 1ffff92000238e04
[  332.633526][ T2599] R13: 000000000000ffd9 R14: ffffc900011c7118 R15: ffff8880168f9218
[  332.634003][ T2599] FS:  00007fb4d553a800(0000) GS:ffff8880c4999000(0000) knlGS:0000000000000000
[  332.634535][ T2599] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  332.634921][ T2599] CR2: 0000000000436890 CR3: 0000000016824003 CR4: 0000000000772ef0
[  332.635388][ T2599] PKRU: 55555554
[  332.635618][ T2599] Call Trace:
[  332.635850][ T2599]  <TASK>
[ 332.636016][ T2599] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 332.636396][ T2599] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 332.636703][ T2599] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 332.637026][ T2599] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 332.637342][ T2599] netif_set_mtu (net/core/dev.c:9652) 
[ 332.637647][ T2599] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 332.637966][ T2599] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 332.638292][ T2599] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 332.638525][ T2599] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 332.638831][ T2599] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 332.639155][ T2599] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 332.639467][ T2599] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 332.639847][ T2599] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 332.640172][ T2599] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 332.640490][ T2599] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 332.640798][ T2599] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 332.641111][ T2599] ? __dev_get_by_name (net/core/dev.c:865) 
[ 332.641418][ T2599] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 332.641720][ T2599] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 332.642055][ T2599] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 332.642359][ T2599] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 332.642683][ T2599] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 332.643017][ T2599] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 332.643331][ T2599] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 332.643645][ T2599] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 332.643949][ T2599] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 332.644265][ T2599] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 332.644571][ T2599] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 332.644881][ T2599] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 332.645225][ T2599] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 332.645552][ T2599] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 332.645872][ T2599] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 332.646204][ T2599] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 332.646540][ T2599] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 332.646859][ T2599] ? 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) 
[ 332.647193][ T2599] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 332.647526][ T2599] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 332.647846][ T2599] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 332.648181][ T2599] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 332.648500][ T2599] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 332.648807][ T2599] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 332.649140][ T2599] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 332.649446][ T2599] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 332.649755][ T2599] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 332.650157][ T2599] ___sys_sendmsg (net/socket.c:2670) 
[ 332.650465][ T2599] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 332.650767][ T2599] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 332.651084][ T2599] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 332.651389][ T2599] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 332.651695][ T2599] ? __handle_mm_fault (mm/memory.c:6212) 
[ 332.652017][ T2599] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 332.652322][ T2599] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 332.652655][ T2599] __sys_sendmsg (net/socket.c:2700) 
[ 332.652960][ T2599] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 332.653277][ T2599] ? 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) 
[ 332.653589][ T2599] ? 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) 
[ 332.653896][ T2599] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 332.654218][ T2599] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 332.654526][ T2599] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  332.654905][ T2599] RIP: 0033:0x7fb4d57071e7
[ 332.655226][ T2599] 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)
[  332.656335][ T2599] RSP: 002b:00007ffd5ca1cef8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  332.656794][ T2599] RAX: ffffffffffffffda RBX: 00007ffd5ca1d620 RCX: 00007fb4d57071e7
[  332.657259][ T2599] RDX: 0000000000000000 RSI: 00007ffd5ca1cf60 RDI: 0000000000000005
[  332.657714][ T2599] RBP: 0000000000000004 R08: 00000000000000b8 R09: 0000000000000000
[  332.658179][ T2599] R10: 00007fb4d55ff6f8 R11: 0000000000000246 R12: 00007ffd5ca1d650
[  332.658635][ T2599] R13: 00000000686e20c5 R14: 0000000000499600 R15: 00007ffd5ca1d054
| [  334.313506][ T2616] ------------[ cut here ]------------
| [ 334.313903][ T2616] WARNING: CPU: 1 PID: 2616 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) 
| [  334.314520][ T2616] Modules linked in: ip_gre gre
| [  334.315471][ T2616] Tainted: [W]=WARN
[  334.315705][ T2616] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 334.316102][ T2616] 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) 
[ 334.316429][ T2616] 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
[  334.317530][ T2616] RSP: 0018:ffffc90001297000 EFLAGS: 00010246
[  334.317915][ T2616] RAX: 0000000000000000 RBX: ffff8880190c1000 RCX: 0000000000000001
[  334.318380][ T2616] RDX: 0000000000000000 RSI: ffffffffa5f10759 RDI: ffffffffa5658280
[  334.318838][ T2616] RBP: ffffc900012970e8 R08: ffff8880190c1218 R09: 0000000000000000
[  334.319316][ T2616] R10: ffffc90001297118 R11: ffffffffa698d1e0 R12: 1ffff92000252e04
[  334.319777][ T2616] R13: 000000000000ffd9 R14: ffffc90001297118 R15: ffff8880190c1218
[  334.320256][ T2616] FS:  00007f829f042800(0000) GS:ffff8880c4a19000(0000) knlGS:0000000000000000
[  334.320799][ T2616] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  334.321311][ T2616] CR2: 0000000000436890 CR3: 0000000005fc6004 CR4: 0000000000772ef0
[  334.321772][ T2616] PKRU: 55555554
[  334.322013][ T2616] Call Trace:
[  334.322241][ T2616]  <TASK>
[ 334.322395][ T2616] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 334.322785][ T2616] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 334.323105][ T2616] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 334.323413][ T2616] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 334.323736][ T2616] netif_set_mtu (net/core/dev.c:9652) 
[ 334.324068][ T2616] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 334.324398][ T2616] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 334.324703][ T2616] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 334.324935][ T2616] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 334.325267][ T2616] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 334.325582][ T2616] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 334.325897][ T2616] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 334.326291][ T2616] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 334.326608][ T2616] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 334.326918][ T2616] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 334.327236][ T2616] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 334.327538][ T2616] ? __dev_get_by_name (net/core/dev.c:865) 
[ 334.327850][ T2616] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 334.328182][ T2616] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 334.328565][ T2616] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 334.328890][ T2616] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 334.329231][ T2616] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 334.329564][ T2616] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 334.329898][ T2616] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 334.330250][ T2616] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 334.330578][ T2616] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 334.330908][ T2616] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 334.331244][ T2616] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 334.331572][ T2616] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 334.331899][ T2616] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 334.332248][ T2616] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 334.332575][ T2616] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 334.332901][ T2616] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 334.333241][ T2616] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 334.333559][ T2616] ? 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) 
[ 334.333885][ T2616] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 334.334218][ T2616] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 334.334537][ T2616] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 334.334861][ T2616] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 334.335199][ T2616] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 334.335522][ T2616] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 334.335851][ T2616] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 334.336195][ T2616] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 334.336512][ T2616] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 334.336933][ T2616] ___sys_sendmsg (net/socket.c:2670) 
[ 334.337268][ T2616] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 334.337591][ T2616] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 334.337917][ T2616] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 334.338246][ T2616] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 334.338573][ T2616] ? __handle_mm_fault (mm/memory.c:6212) 
[ 334.338893][ T2616] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 334.339229][ T2616] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 334.339571][ T2616] __sys_sendmsg (net/socket.c:2700) 
[ 334.339890][ T2616] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 334.340230][ T2616] ? 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) 
[ 334.340561][ T2616] ? 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) 
[ 334.340885][ T2616] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 334.341225][ T2616] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 334.341547][ T2616] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  334.341941][ T2616] RIP: 0033:0x7f829f20f1e7
[ 334.342279][ T2616] 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)
[  334.343445][ T2616] RSP: 002b:00007fff08bd9e78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  334.343929][ T2616] RAX: ffffffffffffffda RBX: 00007fff08bda5a0 RCX: 00007f829f20f1e7
[  334.344426][ T2616] RDX: 0000000000000000 RSI: 00007fff08bd9ee0 RDI: 0000000000000005
[  334.344907][ T2616] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[  334.345396][ T2616] R10: 00007f829f1076f8 R11: 0000000000000246 R12: 00007fff08bda5d0
[  334.345871][ T2616] R13: 00000000686e20c6 R14: 0000000000499600 R15: 00007fff08bd9fd4
| [  336.097861][ T2633] ------------[ cut here ]------------
| [ 336.099611][ T2633] WARNING: CPU: 1 PID: 2633 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) 
| [  336.100233][ T2633] Modules linked in: ip_gre gre
| [  336.101178][ T2633] Tainted: [W]=WARN
[  336.101421][ T2633] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 336.101816][ T2633] 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) 
[ 336.102140][ T2633] 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
[  336.103254][ T2633] RSP: 0018:ffffc90000bc7000 EFLAGS: 00010246
[  336.103640][ T2633] RAX: 0000000000000000 RBX: ffff888002c04000 RCX: 0000000000000001
[  336.104104][ T2633] RDX: 0000000000000000 RSI: ffffffffa5f10759 RDI: ffffffffa5658280
[  336.104563][ T2633] RBP: ffffc90000bc70e8 R08: ffff888002c04218 R09: 0000000000000000
[  336.105046][ T2633] R10: ffffc90000bc7118 R11: 85559b58c4e037a8 R12: 1ffff92000178e04
[  336.105506][ T2633] R13: 00000000000005b6 R14: ffffc90000bc7118 R15: ffff888002c04218
[  336.105974][ T2633] FS:  00007f74b2ba3800(0000) GS:ffff8880c4a19000(0000) knlGS:0000000000000000
[  336.106521][ T2633] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  336.106902][ T2633] CR2: 00007f74b2e0c960 CR3: 00000000090e5005 CR4: 0000000000772ef0
[  336.107371][ T2633] PKRU: 55555554
[  336.107602][ T2633] Call Trace:
[  336.107834][ T2633]  <TASK>
[ 336.108007][ T2633] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 336.108317][ T2633] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 336.108622][ T2633] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 336.108926][ T2633] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 336.109278][ T2633] netif_set_mtu (net/core/dev.c:9652) 
[ 336.109585][ T2633] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 336.109899][ T2633] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 336.110214][ T2633] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 336.110452][ T2633] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 336.110757][ T2633] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 336.111081][ T2633] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 336.111398][ T2633] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 336.111774][ T2633] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 336.112096][ T2633] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 336.112405][ T2633] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 336.112730][ T2633] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 336.113053][ T2633] ? __dev_get_by_name (net/core/dev.c:865) 
[ 336.113359][ T2633] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 336.113718][ T2633] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 336.114038][ T2633] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 336.114342][ T2633] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 336.114662][ T2633] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 336.115000][ T2633] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 336.115318][ T2633] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 336.115634][ T2633] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 336.115938][ T2633] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 336.116258][ T2633] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 336.116566][ T2633] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 336.116874][ T2633] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 336.117200][ T2633] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 336.117523][ T2633] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 336.117840][ T2633] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 336.118155][ T2633] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 336.118475][ T2633] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 336.118782][ T2633] ? 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) 
[ 336.119098][ T2633] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 336.119414][ T2633] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 336.119727][ T2633] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 336.120056][ T2633] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 336.120376][ T2633] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 336.120686][ T2633] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 336.121019][ T2633] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 336.121329][ T2633] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 336.121698][ T2633] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 336.122110][ T2633] ___sys_sendmsg (net/socket.c:2670) 
[ 336.122420][ T2633] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 336.122734][ T2633] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 336.123051][ T2633] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 336.123355][ T2633] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 336.123669][ T2633] ? __handle_mm_fault (mm/memory.c:6212) 
[ 336.123982][ T2633] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 336.124292][ T2633] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 336.124615][ T2633] __sys_sendmsg (net/socket.c:2700) 
[ 336.124923][ T2633] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 336.125252][ T2633] ? 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) 
[ 336.125566][ T2633] ? 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) 
[ 336.125873][ T2633] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 336.126205][ T2633] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 336.126512][ T2633] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  336.126891][ T2633] RIP: 0033:0x7f74b2d701e7
[ 336.127216][ T2633] 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)
[  336.128316][ T2633] RSP: 002b:00007ffd3b2d1778 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  336.128789][ T2633] RAX: ffffffffffffffda RBX: 00007ffd3b2d1ea0 RCX: 00007f74b2d701e7
[  336.129261][ T2633] RDX: 0000000000000000 RSI: 00007ffd3b2d17e0 RDI: 0000000000000005
[  336.129745][ T2633] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[  336.130253][ T2633] R10: 00007f74b2c686f8 R11: 0000000000000246 R12: 00007ffd3b2d1ed0
[  336.130712][ T2633] R13: 00000000686e20c8 R14: 0000000000499600 R15: 00007ffd3b2d18d4
| [  337.765441][ T2650] ------------[ cut here ]------------
| [ 337.765799][ T2650] WARNING: CPU: 0 PID: 2650 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) 
| [  337.766614][ T2650] Modules linked in: ip_gre gre
| [  337.767557][ T2650] Tainted: [W]=WARN
[  337.767787][ T2650] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 337.768176][ T2650] 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) 
[ 337.768498][ T2650] 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
[  337.769603][ T2650] RSP: 0018:ffffc900013b7000 EFLAGS: 00010246
[  337.770002][ T2650] RAX: 0000000000000000 RBX: ffff888016224000 RCX: 0000000000000001
[  337.770470][ T2650] RDX: 0000000000000000 RSI: ffffffffa5f10759 RDI: ffffffffa5658280
[  337.770940][ T2650] RBP: ffffc900013b70e8 R08: ffff888016224218 R09: 0000000000000000
[  337.771440][ T2650] R10: ffffc900013b7118 R11: ffffffffa698d1e0 R12: 1ffff92000276e04
[  337.771912][ T2650] R13: 000000000000ffd9 R14: ffffc900013b7118 R15: ffff888016224218
[  337.772392][ T2650] FS:  00007f87c88dc800(0000) GS:ffff8880c4999000(0000) knlGS:0000000000000000
[  337.772954][ T2650] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  337.773366][ T2650] CR2: 0000000000436890 CR3: 00000000052d2004 CR4: 0000000000772ef0
[  337.773852][ T2650] PKRU: 55555554
[  337.774114][ T2650] Call Trace:
[  337.774355][ T2650]  <TASK>
[ 337.774511][ T2650] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 337.774891][ T2650] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 337.775351][ T2650] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 337.775661][ T2650] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 337.775983][ T2650] netif_set_mtu (net/core/dev.c:9652) 
[ 337.776405][ T2650] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 337.776720][ T2650] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 337.777032][ T2650] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 337.777264][ T2650] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 337.777573][ T2650] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 337.777888][ T2650] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 337.778225][ T2650] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 337.778604][ T2650] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 337.778915][ T2650] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 337.779230][ T2650] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 337.779535][ T2650] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 337.779835][ T2650] ? __dev_get_by_name (net/core/dev.c:865) 
[ 337.780156][ T2650] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 337.780463][ T2650] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 337.780775][ T2650] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 337.781105][ T2650] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 337.781417][ T2650] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 337.781732][ T2650] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 337.782061][ T2650] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 337.782384][ T2650] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 337.782702][ T2650] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 337.783019][ T2650] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 337.783328][ T2650] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 337.783633][ T2650] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 337.784090][ T2650] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 337.784413][ T2650] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 337.784719][ T2650] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 337.785049][ T2650] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 337.785372][ T2650] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 337.785674][ T2650] ? 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) 
[ 337.785982][ T2650] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 337.786312][ T2650] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 337.786618][ T2650] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 337.786930][ T2650] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 337.787253][ T2650] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 337.787564][ T2650] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 337.787875][ T2650] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 337.788193][ T2650] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 337.788504][ T2650] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 337.788899][ T2650] ___sys_sendmsg (net/socket.c:2670) 
[ 337.789222][ T2650] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 337.789533][ T2650] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 337.789844][ T2650] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 337.790167][ T2650] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 337.790485][ T2650] ? __handle_mm_fault (mm/memory.c:6212) 
[ 337.790791][ T2650] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 337.791103][ T2650] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 337.791455][ T2650] __sys_sendmsg (net/socket.c:2700) 
[ 337.791772][ T2650] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 337.792099][ T2650] ? 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) 
[ 337.792419][ T2650] ? 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) 
[ 337.792743][ T2650] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 337.793058][ T2650] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 337.793370][ T2650] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  337.793746][ T2650] RIP: 0033:0x7f87c8aa91e7
[ 337.794114][ T2650] 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)
[  337.795239][ T2650] RSP: 002b:00007ffdfae09bd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  337.795727][ T2650] RAX: ffffffffffffffda RBX: 00007ffdfae0a300 RCX: 00007f87c8aa91e7
[  337.796191][ T2650] RDX: 0000000000000000 RSI: 00007ffdfae09c40 RDI: 0000000000000005
[  337.796647][ T2650] RBP: 0000000000000004 R08: 00000000000000b8 R09: 0000000000000000
[  337.797106][ T2650] R10: 00007f87c89a16f8 R11: 0000000000000246 R12: 00007ffdfae0a330
[  337.797558][ T2650] R13: 00000000686e20ca R14: 0000000000499600 R15: 00007ffdfae09d34
| [  339.243011][ T2666] ------------[ cut here ]------------
| [ 339.243428][ T2666] WARNING: CPU: 3 PID: 2666 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) 
| [  339.244429][ T2666] Modules linked in: ip_gre gre
| [  339.246100][ T2666] Tainted: [W]=WARN
[  339.246498][ T2666] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 339.247178][ T2666] 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) 
[ 339.247735][ T2666] 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
[  339.249640][ T2666] RSP: 0018:ffffc90001457000 EFLAGS: 00010246
[  339.250553][ T2666] RAX: 0000000000000000 RBX: ffff88800283c000 RCX: 0000000000000001
[  339.251359][ T2666] RDX: 0000000000000000 RSI: ffffffffa5f10759 RDI: ffffffffa5658280
[  339.252003][ T2666] RBP: ffffc900014570e8 R08: ffff88800283c218 R09: 0000000000000000
[  339.252812][ T2666] R10: ffffc90001457118 R11: ffffffffa698d1e0 R12: 1ffff9200028ae04
[  339.253619][ T2666] R13: 000000000000ffd9 R14: ffffc90001457118 R15: ffff88800283c218
[  339.254428][ T2666] FS:  00007fd426326800(0000) GS:ffff8880c4b19000(0000) knlGS:0000000000000000
[  339.255373][ T2666] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  339.256050][ T2666] CR2: 0000000000436890 CR3: 0000000016876002 CR4: 0000000000772ef0
[  339.256850][ T2666] PKRU: 55555554
[  339.257262][ T2666] Call Trace:
[  339.257661][ T2666]  <TASK>
[ 339.257929][ T2666] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 339.258604][ T2666] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 339.259154][ T2666] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 339.259690][ T2666] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 339.260250][ T2666] netif_set_mtu (net/core/dev.c:9652) 
[ 339.260780][ T2666] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 339.261373][ T2666] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 339.261901][ T2666] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 339.262320][ T2666] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 339.262859][ T2666] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 339.263432][ T2666] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 339.263970][ T2666] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 339.264641][ T2666] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 339.265195][ T2666] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 339.265728][ T2666] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 339.266274][ T2666] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 339.266808][ T2666] ? __dev_get_by_name (net/core/dev.c:865) 
[ 339.267350][ T2666] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 339.267876][ T2666] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 339.268427][ T2666] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 339.268948][ T2666] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 339.269496][ T2666] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 339.270062][ T2666] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 339.270606][ T2666] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 339.271183][ T2666] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 339.271712][ T2666] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 339.272257][ T2666] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 339.272793][ T2666] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 339.273338][ T2666] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 339.273876][ T2666] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 339.274429][ T2666] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 339.274960][ T2666] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 339.275518][ T2666] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 339.276077][ T2666] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 339.276601][ T2666] ? 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) 
[ 339.277144][ T2666] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 339.277674][ T2666] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 339.278211][ T2666] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 339.278750][ T2666] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 339.279309][ T2666] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 339.279840][ T2666] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 339.280399][ T2666] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 339.280929][ T2666] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 339.281464][ T2666] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 339.282152][ T2666] ___sys_sendmsg (net/socket.c:2670) 
[ 339.282698][ T2666] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 339.283248][ T2666] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 339.283779][ T2666] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 339.284314][ T2666] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 339.284847][ T2666] ? __handle_mm_fault (mm/memory.c:6212) 
[ 339.285382][ T2666] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 339.285904][ T2666] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 339.286491][ T2666] __sys_sendmsg (net/socket.c:2700) 
[ 339.287036][ T2666] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 339.287562][ T2666] ? 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) 
[ 339.288114][ T2666] ? 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) 
[ 339.288645][ T2666] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 339.289187][ T2666] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 339.289716][ T2666] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  339.290382][ T2666] RIP: 0033:0x7fd4264f31e7
[ 339.290927][ T2666] 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)
[  339.292834][ T2666] RSP: 002b:00007ffedb5ecb58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  339.293639][ T2666] RAX: ffffffffffffffda RBX: 00007ffedb5ed280 RCX: 00007fd4264f31e7
[  339.294454][ T2666] RDX: 0000000000000000 RSI: 00007ffedb5ecbc0 RDI: 0000000000000005
[  339.295259][ T2666] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[  339.296062][ T2666] R10: 00007fd4263eb6f8 R11: 0000000000000246 R12: 00007ffedb5ed2b0
[  339.296850][ T2666] R13: 00000000686e20cb R14: 0000000000499600 R15: 00007ffedb5eccb4
| [  340.763077][ T2682] ------------[ cut here ]------------
| [ 340.763476][ T2682] WARNING: CPU: 2 PID: 2682 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) 
| [  340.764148][ T2682] Modules linked in: ip_gre gre
| [  340.765161][ T2682] Tainted: [W]=WARN
[  340.765419][ T2682] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 340.765832][ T2682] 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) 
[ 340.766194][ T2682] 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
[  340.767372][ T2682] RSP: 0018:ffffc900014d7000 EFLAGS: 00010246
[  340.767782][ T2682] RAX: 0000000000000000 RBX: ffff888009d2c000 RCX: 0000000000000001
[  340.768286][ T2682] RDX: 0000000000000000 RSI: ffffffffa5f10759 RDI: ffffffffa5658280
[  340.768766][ T2682] RBP: ffffc900014d70e8 R08: ffff888009d2c218 R09: 0000000000000000
[  340.769257][ T2682] R10: ffffc900014d7118 R11: 1275bb97ae24f8b1 R12: 1ffff9200029ae04
[  340.769739][ T2682] R13: 00000000000005b6 R14: ffffc900014d7118 R15: ffff888009d2c218
[  340.770254][ T2682] FS:  00007f44a5f33800(0000) GS:ffff8880c4a99000(0000) knlGS:0000000000000000
[  340.770853][ T2682] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  340.771430][ T2682] CR2: 0000000000436890 CR3: 000000001527c003 CR4: 0000000000772ef0
[  340.771957][ T2682] PKRU: 55555554
[  340.772223][ T2682] Call Trace:
[  340.772469][ T2682]  <TASK>
[ 340.772653][ T2682] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 340.773003][ T2682] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 340.773333][ T2682] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 340.773654][ T2682] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 340.774018][ T2682] netif_set_mtu (net/core/dev.c:9652) 
[ 340.774389][ T2682] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 340.774725][ T2682] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 340.775061][ T2682] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 340.775318][ T2682] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 340.775643][ T2682] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 340.775974][ T2682] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 340.776317][ T2682] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 340.776715][ T2682] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 340.777053][ T2682] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 340.777380][ T2682] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 340.777711][ T2682] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 340.778057][ T2682] ? __dev_get_by_name (net/core/dev.c:865) 
[ 340.778422][ T2682] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 340.778748][ T2682] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 340.779090][ T2682] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 340.779411][ T2682] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 340.779737][ T2682] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 340.780093][ T2682] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 340.780423][ T2682] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 340.780760][ T2682] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 340.781091][ T2682] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 340.781420][ T2682] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 340.781743][ T2682] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 340.782093][ T2682] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 340.782461][ T2682] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 340.782815][ T2682] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 340.783153][ T2682] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 340.783481][ T2682] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 340.783814][ T2682] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 340.784147][ T2682] ? 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) 
[ 340.784474][ T2682] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 340.784799][ T2682] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 340.785155][ T2682] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 340.785488][ T2682] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 340.785815][ T2682] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 340.786165][ T2682] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 340.786529][ T2682] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 340.786861][ T2682] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 340.787191][ T2682] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 340.787613][ T2682] ___sys_sendmsg (net/socket.c:2670) 
[ 340.787938][ T2682] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 340.788273][ T2682] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 340.788600][ T2682] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 340.788922][ T2682] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 340.789258][ T2682] ? __handle_mm_fault (mm/memory.c:6212) 
[ 340.789582][ T2682] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 340.789909][ T2682] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 340.790293][ T2682] __sys_sendmsg (net/socket.c:2700) 
[ 340.790639][ T2682] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 340.790962][ T2682] ? 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) 
[ 340.791304][ T2682] ? 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) 
[ 340.791631][ T2682] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 340.791959][ T2682] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 340.792306][ T2682] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  340.792719][ T2682] RIP: 0033:0x7f44a61001e7
[ 340.793065][ T2682] 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)
[  340.794204][ T2682] RSP: 002b:00007ffc5e193d48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  340.794730][ T2682] RAX: ffffffffffffffda RBX: 00007ffc5e194470 RCX: 00007f44a61001e7
[  340.795217][ T2682] RDX: 0000000000000000 RSI: 00007ffc5e193db0 RDI: 0000000000000005
[  340.795691][ T2682] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[  340.796178][ T2682] R10: 00007f44a5ff86f8 R11: 0000000000000246 R12: 00007ffc5e1944a0


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