======================================
| [   16.182266][  T284] ip_gre: GRE over IPv4 tunneling driver
| [   16.292024][  T283] ------------[ cut here ]------------
| [ 16.292475][ T283] WARNING: CPU: 1 PID: 283 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) 
| [   16.293361][  T283] Modules linked in: ip_gre gre
[   16.294441][  T283] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 16.295026][ T283] 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) 
[ 16.295348][ T283] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   16.296612][  T283] RSP: 0018:ffffc90000557000 EFLAGS: 00010246
[   16.297017][  T283] RAX: 0000000000000000 RBX: ffff888004f9c000 RCX: 0000000000000001
[   16.297477][  T283] RDX: 0000000000000000 RSI: ffffffff8fb10751 RDI: ffffffff8f258280
[   16.298087][  T283] RBP: ffffc900005570e8 R08: ffff888004f9c218 R09: 0000000000000000
[   16.298693][  T283] R10: ffffc90000557118 R11: 1ffffffff20b42e2 R12: 1ffff920000aae04
[   16.299150][  T283] R13: 00000000000005b6 R14: ffffc90000557118 R15: ffff888004f9c218
[   16.299761][  T283] FS:  00007f0bb1a37800(0000) GS:ffff8880dae19000(0000) knlGS:0000000000000000
[   16.300294][  T283] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.300827][  T283] CR2: 00007fd28bc0e840 CR3: 000000000a679003 CR4: 0000000000772ef0
[   16.301288][  T283] PKRU: 55555554
[   16.301518][  T283] Call Trace:
[   16.302009][  T283]  <TASK>
[ 16.302174][ T283] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 16.302701][ T283] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.303008][ T283] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 16.303312][ T283] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 16.303767][ T283] netif_set_mtu (net/core/dev.c:9652) 
[ 16.304072][ T283] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 16.304386][ T283] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 16.304833][ T283] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 16.305068][ T283] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 16.305371][ T283] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 16.305830][ T283] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 16.306139][ T283] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 16.306515][ T283] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 16.306969][ T283] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 16.307275][ T283] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 16.307727][ T283] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 16.308027][ T283] ? __dev_get_by_name (net/core/dev.c:865) 
[ 16.308329][ T283] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 16.308774][ T283] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 16.309081][ T283] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 16.309380][ T283] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 16.309831][ T283] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 16.310148][ T283] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 16.310454][ T283] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 16.310911][ T283] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 16.311210][ T283] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 16.311513][ T283] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 16.311958][ T283] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 16.312263][ T283] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 16.312605][ T283] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.312916][ T283] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 16.313217][ T283] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 16.313519][ T283] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 16.313842][ T283] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 16.314144][ T283] ? 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) 
[ 16.314447][ T283] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 16.314760][ T283] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 16.315068][ T283] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.315375][ T283] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 16.315689][ T283] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 16.315998][ T283] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 16.316309][ T283] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 16.316623][ T283] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 16.316923][ T283] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 16.317321][ T283] ___sys_sendmsg (net/socket.c:2670) 
[ 16.317637][ T283] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 16.317941][ T283] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 16.318246][ T283] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 16.318555][ T283] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 16.318863][ T283] ? __handle_mm_fault (mm/memory.c:6212) 
[ 16.319167][ T283] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 16.319467][ T283] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 16.319797][ T283] __sys_sendmsg (net/socket.c:2700) 
[ 16.320098][ T283] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 16.320400][ T283] ? 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) 
[ 16.320717][ T283] ? 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) 
[ 16.321020][ T283] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.321328][ T283] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 16.321644][ T283] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   16.322018][  T283] RIP: 0033:0x7f0bb1c041e7
[ 16.322337][ T283] Code: Unable to access opcode bytes at 0x7f0bb1c041bd.

Code starting with the faulting instruction
===========================================
[   16.322741][  T283] RSP: 002b:00007fff6cea97b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   16.323198][  T283] RAX: ffffffffffffffda RBX: 00007fff6cea9ef0 RCX: 00007f0bb1c041e7
[   16.323667][  T283] RDX: 0000000000000000 RSI: 00007fff6cea9820 RDI: 0000000000000005
[   16.324123][  T283] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[   16.324588][  T283] R10: 00007f0bb1afc6f8 R11: 0000000000000246 R12: 00007fff6cea9f10
[   16.325045][  T283] R13: 00000000686e792f R14: 0000000000499600 R15: 00007fff6cea990c
| [   16.514193][  T292] ------------[ cut here ]------------
| [ 16.514567][ T292] WARNING: CPU: 0 PID: 292 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) 
| [   16.515224][  T292] Modules linked in: ip_gre gre
| [   16.516252][  T292] Tainted: [W]=WARN
[   16.516513][  T292] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 16.516927][ T292] 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) 
[ 16.517261][ T292] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   16.518451][  T292] RSP: 0018:ffffc90000b17000 EFLAGS: 00010246
[   16.518884][  T292] RAX: 0000000000000000 RBX: ffff888007ce1000 RCX: 0000000000000001
[   16.519380][  T292] RDX: 0000000000000000 RSI: ffffffff8fb10751 RDI: ffffffff8f258280
[   16.519875][  T292] RBP: ffffc90000b170e8 R08: ffff888007ce1218 R09: 0000000000000000
[   16.520363][  T292] R10: ffffc90000b17118 R11: ffff88800d2795f0 R12: 1ffff92000162e04
[   16.520867][  T292] R13: 00000000000005b6 R14: ffffc90000b17118 R15: ffff888007ce1218
[   16.521349][  T292] FS:  00007f41d2d9e800(0000) GS:ffff8880dad99000(0000) knlGS:0000000000000000
[   16.521914][  T292] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.522327][  T292] CR2: 0000000000436890 CR3: 000000000c618004 CR4: 0000000000772ef0
[   16.522824][  T292] PKRU: 55555554
[   16.523067][  T292] Call Trace:
[   16.523313][  T292]  <TASK>
[ 16.523478][ T292] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 16.523894][ T292] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.524227][ T292] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 16.524578][ T292] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 16.524921][ T292] netif_set_mtu (net/core/dev.c:9652) 
[ 16.525243][ T292] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 16.525590][ T292] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 16.525917][ T292] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 16.526169][ T292] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 16.526493][ T292] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 16.526835][ T292] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 16.527171][ T292] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 16.527595][ T292] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 16.527928][ T292] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 16.528253][ T292] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 16.528586][ T292] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 16.528903][ T292] ? __dev_get_by_name (net/core/dev.c:865) 
[ 16.529227][ T292] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 16.529563][ T292] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 16.529907][ T292] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 16.530230][ T292] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 16.530568][ T292] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 16.530898][ T292] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 16.531228][ T292] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 16.531576][ T292] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 16.531891][ T292] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 16.532236][ T292] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 16.532565][ T292] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 16.532893][ T292] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 16.533217][ T292] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.533554][ T292] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 16.533880][ T292] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 16.534220][ T292] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 16.534571][ T292] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 16.534889][ T292] ? 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) 
[ 16.535216][ T292] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 16.535552][ T292] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 16.535882][ T292] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.536214][ T292] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 16.536550][ T292] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 16.536882][ T292] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 16.537215][ T292] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 16.537552][ T292] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 16.537879][ T292] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 16.538290][ T292] ___sys_sendmsg (net/socket.c:2670) 
[ 16.538616][ T292] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 16.538932][ T292] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 16.539257][ T292] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 16.539587][ T292] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 16.539907][ T292] ? __handle_mm_fault (mm/memory.c:6212) 
[ 16.540223][ T292] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 16.540535][ T292] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 16.540882][ T292] __sys_sendmsg (net/socket.c:2700) 
[ 16.541200][ T292] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 16.541514][ T292] ? 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) 
[ 16.541853][ T292] ? 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) 
[ 16.542173][ T292] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.542493][ T292] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 16.542820][ T292] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   16.543216][  T292] RIP: 0033:0x7f41d2f6b1e7
[ 16.543553][ T292] 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)
[   16.545167][  T292] RSP: 002b:00007fff29a2e668 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   16.545665][  T292] RAX: ffffffffffffffda RBX: 00007fff29a2eda0 RCX: 00007f41d2f6b1e7
[   16.546163][  T292] RDX: 0000000000000000 RSI: 00007fff29a2e6d0 RDI: 0000000000000005
[   16.546656][  T292] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[   16.547375][  T292] R10: 00007f41d2e636f8 R11: 0000000000000246 R12: 00007fff29a2edc0
[   16.547865][  T292] R13: 00000000686e7930 R14: 0000000000499600 R15: 00007fff29a2e7bc
| [   19.824747][  T336] ------------[ cut here ]------------
| [ 19.825178][ T336] WARNING: CPU: 0 PID: 336 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) 
| [   19.827212][  T336] Modules linked in: ip_gre gre
| [   19.828209][  T336] Tainted: [W]=WARN
[   19.828456][  T336] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.828867][ T336] 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) 
[ 19.829196][ T336] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   19.830335][  T336] RSP: 0018:ffffc90000607000 EFLAGS: 00010246
[   19.830763][  T336] RAX: 0000000000000000 RBX: ffff88800ee49000 RCX: 0000000000000001
[   19.831253][  T336] RDX: 0000000000000000 RSI: ffffffff8fb10751 RDI: ffffffff8f258280
[   19.831752][  T336] RBP: ffffc900006070e8 R08: ffff88800ee49218 R09: 0000000000000000
[   19.832238][  T336] R10: ffffc90000607118 R11: ffff88800aa8c5f0 R12: 1ffff920000c0e04
[   19.832732][  T336] R13: 00000000000005b6 R14: ffffc90000607118 R15: ffff88800ee49218
[   19.833210][  T336] FS:  00007f12bc3b8800(0000) GS:ffff8880dad99000(0000) knlGS:0000000000000000
[   19.833775][  T336] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.834177][  T336] CR2: 0000000000436890 CR3: 00000000090db002 CR4: 0000000000772ef0
[   19.834660][  T336] PKRU: 55555554
[   19.834900][  T336] Call Trace:
[   19.835140][  T336]  <TASK>
[ 19.835304][ T336] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 19.835710][ T336] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.836046][ T336] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.836368][ T336] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 19.836736][ T336] netif_set_mtu (net/core/dev.c:9652) 
[ 19.837058][ T336] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.837391][ T336] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 19.837717][ T336] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.837957][ T336] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 19.838276][ T336] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 19.838617][ T336] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 19.838942][ T336] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 19.839337][ T336] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 19.839674][ T336] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 19.839996][ T336] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 19.840319][ T336] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 19.840650][ T336] ? __dev_get_by_name (net/core/dev.c:865) 
[ 19.840973][ T336] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 19.841293][ T336] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 19.841627][ T336] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.841941][ T336] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 19.842262][ T336] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 19.842597][ T336] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.842922][ T336] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.843250][ T336] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.843596][ T336] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.843927][ T336] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.844248][ T336] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.844577][ T336] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.844899][ T336] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.845220][ T336] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.845536][ T336] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.845877][ T336] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.846213][ T336] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.846531][ T336] ? 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) 
[ 19.846858][ T336] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 19.847185][ T336] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.847500][ T336] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.847833][ T336] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.848153][ T336] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.848478][ T336] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.848819][ T336] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.849140][ T336] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.849453][ T336] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.849866][ T336] ___sys_sendmsg (net/socket.c:2670) 
[ 19.850182][ T336] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.850500][ T336] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 19.850830][ T336] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 19.851144][ T336] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 19.851463][ T336] ? __handle_mm_fault (mm/memory.c:6212) 
[ 19.851788][ T336] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 19.852105][ T336] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 19.852444][ T336] __sys_sendmsg (net/socket.c:2700) 
[ 19.852776][ T336] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.853094][ T336] ? 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) 
[ 19.853421][ T336] ? 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) 
[ 19.853754][ T336] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.854079][ T336] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.854398][ T336] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.854798][  T336] RIP: 0033:0x7f12bc5851e7
[ 19.855126][ T336] 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)
[   19.856273][  T336] RSP: 002b:00007fff74e6a6d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.856760][  T336] RAX: ffffffffffffffda RBX: 00007fff74e6ae10 RCX: 00007f12bc5851e7
[   19.857237][  T336] RDX: 0000000000000000 RSI: 00007fff74e6a740 RDI: 0000000000000005
[   19.857719][  T336] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[   19.858198][  T336] R10: 00007f12bc47d6f8 R11: 0000000000000246 R12: 00007fff74e6ae30
[   19.858680][  T336] R13: 00000000686e7933 R14: 0000000000499600 R15: 00007fff74e6a82c
| [   19.997427][  T337] ------------[ cut here ]------------
| [ 19.997847][ T337] WARNING: CPU: 3 PID: 337 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) 
| [   19.998450][  T337] Modules linked in: ip_gre gre
| [   19.999388][  T337] Tainted: [W]=WARN
[   19.999628][  T337] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.000015][ T337] 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) 
[ 20.000329][ T337] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   20.001415][  T337] RSP: 0018:ffffc90000617000 EFLAGS: 00010246
[   20.001809][  T337] RAX: 0000000000000000 RBX: ffff88800b1f1000 RCX: 0000000000000001
[   20.002269][  T337] RDX: 0000000000000000 RSI: ffffffff8fb10751 RDI: ffffffff8f258280
[   20.002731][  T337] RBP: ffffc900006170e8 R08: ffff88800b1f1218 R09: 0000000000000000
[   20.003184][  T337] R10: ffffc90000617118 R11: ffff88800a0d95f0 R12: 1ffff920000c2e04
[   20.003642][  T337] R13: 00000000000005b6 R14: ffffc90000617118 R15: ffff88800b1f1218
[   20.004100][  T337] FS:  00007f4ec61d7800(0000) GS:ffff8880daf19000(0000) knlGS:0000000000000000
[   20.004637][  T337] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.005021][  T337] CR2: 0000000000436890 CR3: 000000000fb58001 CR4: 0000000000772ef0
[   20.005476][  T337] PKRU: 55555554
[   20.005718][  T337] Call Trace:
[   20.005960][  T337]  <TASK>
[ 20.006114][ T337] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 20.006493][ T337] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.006810][ T337] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.007115][ T337] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 20.007428][ T337] netif_set_mtu (net/core/dev.c:9652) 
[ 20.007739][ T337] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.008053][ T337] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 20.008362][ T337] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.008601][ T337] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 20.008911][ T337] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 20.009222][ T337] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 20.009532][ T337] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 20.009920][ T337] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 20.010234][ T337] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 20.010552][ T337] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 20.010860][ T337] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 20.011163][ T337] ? __dev_get_by_name (net/core/dev.c:865) 
[ 20.011468][ T337] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 20.011785][ T337] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 20.012098][ T337] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.012399][ T337] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 20.012719][ T337] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 20.013033][ T337] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.013342][ T337] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.013664][ T337] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.013964][ T337] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.014270][ T337] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.014582][ T337] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.014887][ T337] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.015198][ T337] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.015506][ T337] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.015822][ T337] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.016129][ T337] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.016446][ T337] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.016754][ T337] ? 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) 
[ 20.017060][ T337] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 20.017368][ T337] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.017677][ T337] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.017984][ T337] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.018291][ T337] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.018605][ T337] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.018917][ T337] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.019222][ T337] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.019527][ T337] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.019926][ T337] ___sys_sendmsg (net/socket.c:2670) 
[ 20.020233][ T337] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.020536][ T337] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 20.020853][ T337] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 20.021154][ T337] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 20.021460][ T337] ? __handle_mm_fault (mm/memory.c:6212) 
[ 20.021775][ T337] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 20.022077][ T337] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 20.022403][ T337] __sys_sendmsg (net/socket.c:2700) 
[ 20.022714][ T337] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.023017][ T337] ? 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) 
[ 20.023333][ T337] ? 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) 
[ 20.023650][ T337] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.023961][ T337] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.024264][ T337] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.024644][  T337] RIP: 0033:0x7f4ec63a41e7
[ 20.024959][ T337] 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)
[   20.026057][  T337] RSP: 002b:00007fff305536b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.026516][  T337] RAX: ffffffffffffffda RBX: 00007fff30553df0 RCX: 00007f4ec63a41e7
[   20.026978][  T337] RDX: 0000000000000000 RSI: 00007fff30553720 RDI: 0000000000000005
[   20.027433][  T337] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[   20.027898][  T337] R10: 00007f4ec629c6f8 R11: 0000000000000246 R12: 00007fff30553e10
[   20.028352][  T337] R13: 00000000686e7933 R14: 0000000000499600 R15: 00007fff3055380c
| [   24.066393][  T386] ------------[ cut here ]------------
| [ 24.067867][ T386] WARNING: CPU: 0 PID: 386 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) 
| [   24.068584][  T386] Modules linked in: ip_gre gre
| [   24.069570][  T386] Tainted: [W]=WARN
[   24.069811][  T386] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 24.070209][ T386] 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) 
[ 24.070537][ T386] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   24.071697][  T386] RSP: 0018:ffffc90000787000 EFLAGS: 00010246
[   24.072098][  T386] RAX: 0000000000000000 RBX: ffff888005861000 RCX: 0000000000000001
[   24.072581][  T386] RDX: 0000000000000000 RSI: ffffffff8fb10751 RDI: ffffffff8f258280
[   24.073055][  T386] RBP: ffffc900007870e8 R08: ffff888005861218 R09: 0000000000000000
[   24.073532][  T386] R10: ffffc90000787118 R11: ffff88800b3ec5f0 R12: 1ffff920000f0e04
[   24.074026][  T386] R13: 00000000000005b6 R14: ffffc90000787118 R15: ffff888005861218
[   24.074501][  T386] FS:  00007f6bacb69800(0000) GS:ffff8880dad99000(0000) knlGS:0000000000000000
[   24.075074][  T386] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.075474][  T386] CR2: 000000000049c120 CR3: 000000000b86c004 CR4: 0000000000772ef0
[   24.075984][  T386] PKRU: 55555554
[   24.076224][  T386] Call Trace:
[   24.076462][  T386]  <TASK>
[ 24.076633][ T386] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 24.077028][ T386] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.077346][ T386] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 24.077678][ T386] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 24.078010][ T386] netif_set_mtu (net/core/dev.c:9652) 
[ 24.078326][ T386] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 24.078661][ T386] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 24.078984][ T386] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 24.079226][ T386] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 24.079558][ T386] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 24.079892][ T386] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 24.080217][ T386] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 24.080619][ T386] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 24.080946][ T386] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 24.081265][ T386] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 24.081593][ T386] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 24.081909][ T386] ? __dev_get_by_name (net/core/dev.c:865) 
[ 24.082226][ T386] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 24.082555][ T386] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 24.082876][ T386] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 24.083189][ T386] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 24.083513][ T386] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 24.083852][ T386] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 24.084174][ T386] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.084506][ T386] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 24.084833][ T386] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.085154][ T386] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.085470][ T386] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 24.085809][ T386] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.086139][ T386] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.086462][ T386] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 24.086790][ T386] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.087108][ T386] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 24.087436][ T386] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 24.087759][ T386] ? 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) 
[ 24.088080][ T386] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 24.088405][ T386] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 24.088729][ T386] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.089054][ T386] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 24.089372][ T386] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 24.089695][ T386] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 24.090017][ T386] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 24.090338][ T386] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 24.090665][ T386] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 24.091058][ T386] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 24.091400][ T386] ___sys_sendmsg (net/socket.c:2670) 
[ 24.091728][ T386] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 24.092044][ T386] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 24.092361][ T386] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 24.092690][ T386] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.093018][ T386] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.093338][ T386] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.093666][ T386] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 24.093988][ T386] __sys_sendmsg (net/socket.c:2700) 
[ 24.094305][ T386] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 24.094709][ T386] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 24.095039][ T386] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.095356][ T386] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 24.095684][ T386] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   24.096096][  T386] RIP: 0033:0x7f6bacd361e7
[ 24.096421][ T386] 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)
[   24.097557][  T386] RSP: 002b:00007ffd6e460cc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   24.098033][  T386] RAX: ffffffffffffffda RBX: 00007ffd6e461400 RCX: 00007f6bacd361e7
[   24.098513][  T386] RDX: 0000000000000000 RSI: 00007ffd6e460d30 RDI: 0000000000000005
[   24.098995][  T386] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[   24.099471][  T386] R10: 00007f6bacc2e6f8 R11: 0000000000000246 R12: 00007ffd6e461420
[   24.099953][  T386] R13: 00000000686e7937 R14: 0000000000499600 R15: 00007ffd6e460e1c
| [   24.232305][  T387] ------------[ cut here ]------------
| [ 24.232761][ T387] WARNING: CPU: 2 PID: 387 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) 
| [   24.233394][  T387] Modules linked in: ip_gre gre
| [   24.234355][  T387] Tainted: [W]=WARN
[   24.234611][  T387] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 24.234999][ T387] 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) 
[ 24.235330][ T387] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   24.236448][  T387] RSP: 0018:ffffc90000797000 EFLAGS: 00010246
[   24.236862][  T387] RAX: 0000000000000000 RBX: ffff88800ef44000 RCX: 0000000000000001
[   24.237342][  T387] RDX: 0000000000000000 RSI: ffffffff8fb10751 RDI: ffffffff8f258280
[   24.237821][  T387] RBP: ffffc900007970e8 R08: ffff88800ef44218 R09: 0000000000000000
[   24.238285][  T387] R10: ffffc90000797118 R11: ffff88800bc095f0 R12: 1ffff920000f2e04
[   24.238760][  T387] R13: 00000000000005b6 R14: ffffc90000797118 R15: ffff88800ef44218
[   24.239233][  T387] FS:  00007f2e4d61e800(0000) GS:ffff8880dae99000(0000) knlGS:0000000000000000
[   24.239785][  T387] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.240181][  T387] CR2: 000000000049c120 CR3: 0000000004ed3001 CR4: 0000000000772ef0
[   24.240685][  T387] PKRU: 55555554
[   24.240928][  T387] Call Trace:
[   24.241169][  T387]  <TASK>
[ 24.241335][ T387] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 24.241778][ T387] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.242100][ T387] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 24.242418][ T387] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 24.242757][ T387] netif_set_mtu (net/core/dev.c:9652) 
[ 24.243072][ T387] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 24.243400][ T387] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 24.243724][ T387] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 24.243973][ T387] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 24.244289][ T387] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 24.244693][ T387] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 24.245019][ T387] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 24.245412][ T387] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 24.245749][ T387] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 24.246080][ T387] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 24.246403][ T387] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 24.246729][ T387] ? __dev_get_by_name (net/core/dev.c:865) 
[ 24.247049][ T387] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 24.247367][ T387] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 24.247705][ T387] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 24.248018][ T387] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 24.248340][ T387] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 24.248687][ T387] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 24.249018][ T387] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.249350][ T387] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 24.249675][ T387] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.249994][ T387] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.250309][ T387] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 24.250637][ T387] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.250957][ T387] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.251283][ T387] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 24.251610][ T387] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.251939][ T387] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 24.252266][ T387] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 24.252600][ T387] ? 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) 
[ 24.252925][ T387] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 24.253245][ T387] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 24.253573][ T387] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.253896][ T387] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 24.254217][ T387] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 24.254534][ T387] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 24.254869][ T387] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 24.255186][ T387] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 24.255500][ T387] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 24.255911][ T387] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 24.256243][ T387] ___sys_sendmsg (net/socket.c:2670) 
[ 24.256582][ T387] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 24.256899][ T387] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 24.257213][ T387] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 24.257534][ T387] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.257869][ T387] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.258188][ T387] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.258506][ T387] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 24.258839][ T387] __sys_sendmsg (net/socket.c:2700) 
[ 24.259152][ T387] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 24.259550][ T387] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 24.259878][ T387] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.260195][ T387] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 24.260512][ T387] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   24.260922][  T387] RIP: 0033:0x7f2e4d7eb1e7
[ 24.261255][ T387] 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)
[   24.262354][  T387] RSP: 002b:00007ffc6b2b3738 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   24.262831][  T387] RAX: ffffffffffffffda RBX: 00007ffc6b2b3e70 RCX: 00007f2e4d7eb1e7
[   24.263304][  T387] RDX: 0000000000000000 RSI: 00007ffc6b2b37a0 RDI: 0000000000000005
[   24.263781][  T387] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[   24.264247][  T387] R10: 00007f2e4d6e36f8 R11: 0000000000000246 R12: 00007ffc6b2b3e90
[   24.264732][  T387] R13: 00000000686e7937 R14: 0000000000499600 R15: 00007ffc6b2b388c
| [   27.509322][  T430] ------------[ cut here ]------------
| [ 27.510798][ T430] WARNING: CPU: 0 PID: 430 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) 
| [   27.511444][  T430] Modules linked in: ip_gre gre
| [   27.512424][  T430] Tainted: [W]=WARN
[   27.512678][  T430] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 27.513079][ T430] 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) 
[ 27.513406][ T430] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   27.514557][  T430] RSP: 0018:ffffc90000957000 EFLAGS: 00010246
[   27.514967][  T430] RAX: 0000000000000000 RBX: ffff88800a1a9000 RCX: 0000000000000001
[   27.515444][  T430] RDX: 0000000000000000 RSI: ffffffff8fb10751 RDI: ffffffff8f258280
[   27.515940][  T430] RBP: ffffc900009570e8 R08: ffff88800a1a9218 R09: 0000000000000000
[   27.516440][  T430] R10: ffffc90000957118 R11: ffff888010c195f0 R12: 1ffff9200012ae04
[   27.516930][  T430] R13: 00000000000005b6 R14: ffffc90000957118 R15: ffff88800a1a9218
[   27.517405][  T430] FS:  00007f2bf3734800(0000) GS:ffff8880dad99000(0000) knlGS:0000000000000000
[   27.517993][  T430] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.518396][  T430] CR2: 000000000049c120 CR3: 000000000f1ba003 CR4: 0000000000772ef0
[   27.518884][  T430] PKRU: 55555554
[   27.519127][  T430] Call Trace:
[   27.519368][  T430]  <TASK>
[ 27.519531][ T430] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 27.519941][ T430] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 27.520260][ T430] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 27.520595][ T430] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 27.520925][ T430] netif_set_mtu (net/core/dev.c:9652) 
[ 27.521260][ T430] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 27.521598][ T430] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 27.521934][ T430] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 27.522176][ T430] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 27.522506][ T430] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 27.522845][ T430] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 27.523168][ T430] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 27.523570][ T430] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 27.523895][ T430] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 27.524212][ T430] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 27.524555][ T430] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 27.524874][ T430] ? __dev_get_by_name (net/core/dev.c:865) 
[ 27.525193][ T430] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 27.525512][ T430] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 27.525849][ T430] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 27.526182][ T430] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 27.526510][ T430] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 27.526845][ T430] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 27.527169][ T430] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 27.527498][ T430] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 27.527825][ T430] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 27.528144][ T430] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 27.528464][ T430] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 27.528795][ T430] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 27.529117][ T430] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.529437][ T430] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 27.529770][ T430] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 27.530092][ T430] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 27.530426][ T430] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 27.530754][ T430] ? 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) 
[ 27.531072][ T430] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 27.531396][ T430] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 27.531722][ T430] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.532046][ T430] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 27.532365][ T430] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 27.532692][ T430] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 27.533015][ T430] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 27.533334][ T430] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 27.533674][ T430] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 27.534072][ T430] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 27.534404][ T430] ___sys_sendmsg (net/socket.c:2670) 
[ 27.534730][ T430] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 27.535054][ T430] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 27.535369][ T430] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 27.535697][ T430] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.536043][ T430] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 27.536370][ T430] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 27.536705][ T430] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 27.537040][ T430] __sys_sendmsg (net/socket.c:2700) 
[ 27.537362][ T430] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 27.537775][ T430] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 27.538115][ T430] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 27.538444][ T430] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 27.538775][ T430] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   27.539182][  T430] RIP: 0033:0x7f2bf39011e7
[ 27.539526][ T430] 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)
[   27.540686][  T430] RSP: 002b:00007ffea9149668 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   27.541184][  T430] RAX: ffffffffffffffda RBX: 00007ffea9149da0 RCX: 00007f2bf39011e7
[   27.541682][  T430] RDX: 0000000000000000 RSI: 00007ffea91496d0 RDI: 0000000000000005
[   27.542167][  T430] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[   27.542662][  T430] R10: 00007f2bf37f96f8 R11: 0000000000000246 R12: 00007ffea9149dc0
[   27.543163][  T430] R13: 00000000686e793b R14: 0000000000499600 R15: 00007ffea91497bc
| [   27.683029][  T431] ------------[ cut here ]------------
| [ 27.683466][ T431] WARNING: CPU: 2 PID: 431 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) 
| [   27.684106][  T431] Modules linked in: ip_gre gre
| [   27.685080][  T431] Tainted: [W]=WARN
[   27.685325][  T431] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 27.685723][ T431] 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) 
[ 27.686062][ T431] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   27.687174][  T431] RSP: 0018:ffffc90000967000 EFLAGS: 00010246
[   27.687597][  T431] RAX: 0000000000000000 RBX: ffff88800e979000 RCX: 0000000000000001
[   27.688065][  T431] RDX: 0000000000000000 RSI: ffffffff8fb10751 RDI: ffffffff8f258280
[   27.688532][  T431] RBP: ffffc900009670e8 R08: ffff88800e979218 R09: 0000000000000000
[   27.689011][  T431] R10: ffffc90000967118 R11: ffff888010c1c5f0 R12: 1ffff9200012ce04
[   27.689494][  T431] R13: 00000000000005b6 R14: ffffc90000967118 R15: ffff88800e979218
[   27.690060][  T431] FS:  00007f1df992d800(0000) GS:ffff8880dae99000(0000) knlGS:0000000000000000
[   27.690626][  T431] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.691027][  T431] CR2: 000000000049c120 CR3: 000000000ef84002 CR4: 0000000000772ef0
[   27.691494][  T431] PKRU: 55555554
[   27.691742][  T431] Call Trace:
[   27.691980][  T431]  <TASK>
[ 27.692148][ T431] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 27.692547][ T431] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 27.692870][ T431] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 27.693191][ T431] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 27.693521][ T431] netif_set_mtu (net/core/dev.c:9652) 
[ 27.693846][ T431] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 27.694180][ T431] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 27.694495][ T431] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 27.694746][ T431] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 27.695063][ T431] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 27.695386][ T431] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 27.695719][ T431] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 27.696118][ T431] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 27.696443][ T431] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 27.696771][ T431] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 27.697088][ T431] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 27.697401][ T431] ? __dev_get_by_name (net/core/dev.c:865) 
[ 27.697731][ T431] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 27.698046][ T431] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 27.698365][ T431] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 27.698686][ T431] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 27.699006][ T431] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 27.699330][ T431] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 27.699661][ T431] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 27.699986][ T431] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 27.700303][ T431] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 27.700628][ T431] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 27.700945][ T431] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 27.701260][ T431] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 27.701589][ T431] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.701909][ T431] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 27.702226][ T431] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 27.702550][ T431] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 27.702881][ T431] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 27.703193][ T431] ? 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) 
[ 27.703510][ T431] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 27.703837][ T431] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 27.704155][ T431] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.704473][ T431] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 27.704803][ T431] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 27.705124][ T431] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 27.705452][ T431] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 27.705783][ T431] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 27.706106][ T431] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 27.706491][ T431] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 27.706827][ T431] ___sys_sendmsg (net/socket.c:2670) 
[ 27.707143][ T431] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 27.707463][ T431] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 27.707789][ T431] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 27.708108][ T431] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.708432][ T431] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 27.708760][ T431] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 27.709076][ T431] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 27.709395][ T431] __sys_sendmsg (net/socket.c:2700) 
[ 27.709721][ T431] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 27.710106][ T431] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 27.710435][ T431] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 27.710759][ T431] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 27.711080][ T431] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   27.711466][  T431] RIP: 0033:0x7f1df9afa1e7
[ 27.711801][ T431] 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)
[   27.712900][  T431] RSP: 002b:00007ffee411a9f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   27.713370][  T431] RAX: ffffffffffffffda RBX: 00007ffee411b130 RCX: 00007f1df9afa1e7
[   27.713841][  T431] RDX: 0000000000000000 RSI: 00007ffee411aa60 RDI: 0000000000000005
[   27.714309][  T431] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[   27.714783][  T431] R10: 00007f1df99f26f8 R11: 0000000000000246 R12: 00007ffee411b150
[   27.715245][  T431] R13: 00000000686e793b R14: 0000000000499600 R15: 00007ffee411ab4c
| [   31.617921][  T480] ------------[ cut here ]------------
| [ 31.618359][ T480] WARNING: CPU: 2 PID: 480 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) 
| [   31.619000][  T480] Modules linked in: ip_gre gre
| [   31.619967][  T480] Tainted: [W]=WARN
[   31.620215][  T480] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 31.620615][ T480] 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) 
[ 31.620942][ T480] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   31.622049][  T480] RSP: 0018:ffffc90000ce7000 EFLAGS: 00010246
[   31.622452][  T480] RAX: 0000000000000000 RBX: ffff88800c234000 RCX: 0000000000000001
[   31.624351][  T480] RDX: 0000000000000000 RSI: ffffffff8fb10751 RDI: ffffffff8f258280
[   31.624842][  T480] RBP: ffffc90000ce70e8 R08: ffff88800c234218 R09: 0000000000000000
[   31.625320][  T480] R10: ffffc90000ce7118 R11: ffff888009b295f0 R12: 1ffff9200019ce04
[   31.625803][  T480] R13: 00000000000005b6 R14: ffffc90000ce7118 R15: ffff88800c234218
[   31.626283][  T480] FS:  00007fd07ee21800(0000) GS:ffff8880dae99000(0000) knlGS:0000000000000000
[   31.626863][  T480] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.627261][  T480] CR2: 00007fd07ef21130 CR3: 000000000be73001 CR4: 0000000000772ef0
[   31.627744][  T480] PKRU: 55555554
[   31.627984][  T480] Call Trace:
[   31.628223][  T480]  <TASK>
[ 31.628390][ T480] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 31.628793][ T480] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.629112][ T480] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 31.629435][ T480] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 31.629770][ T480] netif_set_mtu (net/core/dev.c:9652) 
[ 31.630087][ T480] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 31.630413][ T480] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 31.630755][ T480] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 31.631002][ T480] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 31.631323][ T480] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 31.631666][ T480] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 31.631988][ T480] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 31.632379][ T480] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 31.632715][ T480] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 31.633034][ T480] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 31.633351][ T480] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 31.633675][ T480] ? __dev_get_by_name (net/core/dev.c:865) 
[ 31.633992][ T480] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 31.634310][ T480] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 31.634652][ T480] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 31.634973][ T480] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 31.635293][ T480] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 31.635633][ T480] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 31.635962][ T480] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 31.636290][ T480] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 31.636614][ T480] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 31.636936][ T480] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 31.637252][ T480] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 31.637580][ T480] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 31.637899][ T480] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.638223][ T480] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 31.638560][ T480] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 31.638891][ T480] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 31.639221][ T480] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 31.639549][ T480] ? 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) 
[ 31.639867][ T480] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 31.640189][ T480] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 31.640506][ T480] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.640837][ T480] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 31.641158][ T480] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 31.641475][ T480] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 31.641812][ T480] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 31.642136][ T480] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 31.642453][ T480] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 31.642881][ T480] ___sys_sendmsg (net/socket.c:2670) 
[ 31.643204][ T480] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 31.643526][ T480] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 31.643857][ T480] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 31.644174][ T480] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 31.644495][ T480] ? __handle_mm_fault (mm/memory.c:6212) 
[ 31.644820][ T480] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 31.645132][ T480] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 31.645465][ T480] __sys_sendmsg (net/socket.c:2700) 
[ 31.645794][ T480] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 31.646118][ T480] ? 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) 
[ 31.646444][ T480] ? 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) 
[ 31.646787][ T480] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 31.647110][ T480] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 31.647427][ T480] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   31.647827][  T480] RIP: 0033:0x7fd07efee1e7
[ 31.648156][ T480] 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)
[   31.649268][  T480] RSP: 002b:00007ffd4531e008 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   31.649749][  T480] RAX: ffffffffffffffda RBX: 00007ffd4531e740 RCX: 00007fd07efee1e7
[   31.650215][  T480] RDX: 0000000000000000 RSI: 00007ffd4531e070 RDI: 0000000000000005
[   31.650706][  T480] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[   31.651180][  T480] R10: 00007fd07eee66f8 R11: 0000000000000246 R12: 00007ffd4531e760
[   31.651659][  T480] R13: 00000000686e793f R14: 0000000000499600 R15: 00007ffd4531e15c
| [   31.791585][  T481] ------------[ cut here ]------------
| [ 31.792002][ T481] WARNING: CPU: 0 PID: 481 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) 
| [   31.792649][  T481] Modules linked in: ip_gre gre
| [   31.793641][  T481] Tainted: [W]=WARN
[   31.793888][  T481] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 31.794287][ T481] 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) 
[ 31.794627][ T481] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   31.795775][  T481] RSP: 0018:ffffc90000cf7000 EFLAGS: 00010246
[   31.796191][  T481] RAX: 0000000000000000 RBX: ffff88800fbf4000 RCX: 0000000000000001
[   31.796684][  T481] RDX: 0000000000000000 RSI: ffffffff8fb10751 RDI: ffffffff8f258280
[   31.797160][  T481] RBP: ffffc90000cf70e8 R08: ffff88800fbf4218 R09: 0000000000000000
[   31.797652][  T481] R10: ffffc90000cf7118 R11: ffff888009b2c5f0 R12: 1ffff9200019ee04
[   31.798129][  T481] R13: 00000000000005b6 R14: ffffc90000cf7118 R15: ffff88800fbf4218
[   31.798619][  T481] FS:  00007f4af71a5800(0000) GS:ffff8880dad99000(0000) knlGS:0000000000000000
[   31.799170][  T481] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.799577][  T481] CR2: 0000000000436890 CR3: 000000000fb16006 CR4: 0000000000772ef0
[   31.800054][  T481] PKRU: 55555554
[   31.800294][  T481] Call Trace:
[   31.800535][  T481]  <TASK>
[ 31.800714][ T481] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 31.801111][ T481] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.801434][ T481] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 31.801770][ T481] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 31.802102][ T481] netif_set_mtu (net/core/dev.c:9652) 
[ 31.802421][ T481] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 31.802759][ T481] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 31.803082][ T481] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 31.803324][ T481] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 31.803652][ T481] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 31.803976][ T481] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 31.804300][ T481] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 31.804702][ T481] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 31.805030][ T481] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 31.805351][ T481] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 31.805690][ T481] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 31.806022][ T481] ? __dev_get_by_name (net/core/dev.c:865) 
[ 31.806340][ T481] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 31.806689][ T481] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 31.807013][ T481] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 31.807329][ T481] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 31.807658][ T481] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 31.807998][ T481] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 31.808326][ T481] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 31.808663][ T481] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 31.808979][ T481] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 31.809297][ T481] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 31.809630][ T481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 31.809957][ T481] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 31.810281][ T481] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.810614][ T481] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 31.810939][ T481] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 31.811260][ T481] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 31.811620][ T481] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 31.811935][ T481] ? 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) 
[ 31.812257][ T481] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 31.812592][ T481] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 31.812907][ T481] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.813229][ T481] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 31.813573][ T481] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 31.813900][ T481] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 31.814224][ T481] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 31.814554][ T481] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 31.814868][ T481] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 31.815282][ T481] ___sys_sendmsg (net/socket.c:2670) 
[ 31.815612][ T481] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 31.815936][ T481] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 31.816256][ T481] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 31.816576][ T481] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 31.816899][ T481] ? __handle_mm_fault (mm/memory.c:6212) 
[ 31.817219][ T481] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 31.817534][ T481] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 31.817893][ T481] __sys_sendmsg (net/socket.c:2700) 
[ 31.818212][ T481] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 31.818528][ T481] ? 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) 
[ 31.818863][ T481] ? 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) 
[ 31.819182][ T481] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 31.819507][ T481] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 31.819834][ T481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   31.820231][  T481] RIP: 0033:0x7f4af73721e7
[ 31.820573][ T481] 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)
[   31.821734][  T481] RSP: 002b:00007ffdc24c2458 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   31.822218][  T481] RAX: ffffffffffffffda RBX: 00007ffdc24c2b90 RCX: 00007f4af73721e7
[   31.822703][  T481] RDX: 0000000000000000 RSI: 00007ffdc24c24c0 RDI: 0000000000000005
[   31.823179][  T481] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[   31.823665][  T481] R10: 00007f4af726a6f8 R11: 0000000000000246 R12: 00007ffdc24c2bb0
[   31.824148][  T481] R13: 00000000686e793f R14: 0000000000499600 R15: 00007ffdc24c25ac
| [   35.171667][  T524] ------------[ cut here ]------------
| [ 35.172120][ T524] WARNING: CPU: 0 PID: 524 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   35.172787][  T524] Modules linked in: ip_gre gre
| [   35.173787][  T524] Tainted: [W]=WARN
[   35.174034][  T524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 35.174430][ T524] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 35.174790][ T524] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   35.175973][  T524] RSP: 0018:ffffc90000e47000 EFLAGS: 00010246
[   35.176388][  T524] RAX: 0000000000000000 RBX: ffff88800fbf1000 RCX: 0000000000000001
[   35.176874][  T524] RDX: 0000000000000000 RSI: ffffffff8fb10751 RDI: ffffffff8f258280
[   35.177356][  T524] RBP: ffffc90000e470e8 R08: ffff88800fbf1218 R09: 0000000000000000
[   35.177853][  T524] R10: ffffc90000e47118 R11: ffff88800f1815f0 R12: 1ffff920001c8e04
[   35.178328][  T524] R13: 00000000000005b6 R14: ffffc90000e47118 R15: ffff88800fbf1218
[   35.178820][  T524] FS:  00007f5ee646d800(0000) GS:ffff8880dad99000(0000) knlGS:0000000000000000
[   35.179380][  T524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.179795][  T524] CR2: 0000000000436890 CR3: 000000000acd9002 CR4: 0000000000772ef0
[   35.180275][  T524] PKRU: 55555554
[   35.180512][  T524] Call Trace:
[   35.180756][  T524]  <TASK>
[ 35.180919][ T524] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 35.181317][ T524] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.181652][ T524] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 35.181971][ T524] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 35.182300][ T524] netif_set_mtu (net/core/dev.c:9652) 
[ 35.182627][ T524] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 35.182960][ T524] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 35.183277][ T524] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 35.183517][ T524] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 35.183865][ T524] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 35.184198][ T524] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 35.184524][ T524] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 35.184925][ T524] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 35.185251][ T524] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 35.185578][ T524] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 35.185907][ T524] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 35.186221][ T524] ? __dev_get_by_name (net/core/dev.c:865) 
[ 35.186553][ T524] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 35.186874][ T524] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 35.187199][ T524] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 35.187518][ T524] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 35.187848][ T524] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 35.188176][ T524] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 35.188499][ T524] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.188835][ T524] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 35.189158][ T524] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.189486][ T524] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.189822][ T524] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 35.190153][ T524] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.190483][ T524] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.190814][ T524] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 35.191138][ T524] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.191468][ T524] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 35.191812][ T524] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 35.192132][ T524] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 35.192454][ T524] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 35.192791][ T524] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 35.193112][ T524] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.193444][ T524] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 35.193780][ T524] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 35.194112][ T524] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 35.194445][ T524] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 35.194777][ T524] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 35.195103][ T524] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 35.195520][ T524] ___sys_sendmsg (net/socket.c:2670) 
[ 35.195861][ T524] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 35.196188][ T524] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 35.196516][ T524] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 35.196863][ T524] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 35.197191][ T524] ? __handle_mm_fault (mm/memory.c:6212) 
[ 35.197510][ T524] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 35.197847][ T524] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 35.198187][ T524] __sys_sendmsg (net/socket.c:2700) 
[ 35.198509][ T524] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 35.198838][ T524] ? 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) 
[ 35.199184][ T524] ? 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) 
[ 35.199505][ T524] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.199842][ T524] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 35.200180][ T524] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   35.200591][  T524] RIP: 0033:0x7f5ee663a1e7
[ 35.200934][ T524] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   35.202109][  T524] RSP: 002b:00007ffef55b7e68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   35.202602][  T524] RAX: ffffffffffffffda RBX: 00007ffef55b85a0 RCX: 00007f5ee663a1e7
[   35.203099][  T524] RDX: 0000000000000000 RSI: 00007ffef55b7ed0 RDI: 0000000000000005
[   35.203594][  T524] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[   35.204070][  T524] R10: 00007f5ee65326f8 R11: 0000000000000246 R12: 00007ffef55b85c0
[   35.204573][  T524] R13: 00000000686e7942 R14: 0000000000499600 R15: 00007ffef55b7fbc
| [   35.328656][  T525] ------------[ cut here ]------------
| [ 35.329099][ T525] WARNING: CPU: 2 PID: 525 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   35.329731][  T525] Modules linked in: ip_gre gre
| [   35.330695][  T525] Tainted: [W]=WARN
[   35.330942][  T525] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 35.331338][ T525] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 35.331672][ T525] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   35.332830][  T525] RSP: 0018:ffffc90000e57000 EFLAGS: 00010246
[   35.333233][  T525] RAX: 0000000000000000 RBX: ffff88800c4a4000 RCX: 0000000000000001
[   35.333711][  T525] RDX: 0000000000000000 RSI: ffffffff8fb10751 RDI: ffffffff8f258280
[   35.334185][  T525] RBP: ffffc90000e570e8 R08: ffff88800c4a4218 R09: 0000000000000000
[   35.334661][  T525] R10: ffffc90000e57118 R11: ffff88800f1845f0 R12: 1ffff920001cae04
[   35.335129][  T525] R13: 00000000000005b6 R14: ffffc90000e57118 R15: ffff88800c4a4218
[   35.335605][  T525] FS:  00007ffbb8695800(0000) GS:ffff8880dae99000(0000) knlGS:0000000000000000
[   35.336164][  T525] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.336572][  T525] CR2: 0000000000436890 CR3: 000000000a62e004 CR4: 0000000000772ef0
[   35.337044][  T525] PKRU: 55555554
[   35.337283][  T525] Call Trace:
[   35.337523][  T525]  <TASK>
[ 35.337699][ T525] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 35.338094][ T525] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.338412][ T525] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 35.338746][ T525] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 35.339075][ T525] netif_set_mtu (net/core/dev.c:9652) 
[ 35.339392][ T525] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 35.339728][ T525] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 35.340046][ T525] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 35.340287][ T525] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 35.340613][ T525] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 35.340942][ T525] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 35.341262][ T525] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 35.341660][ T525] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 35.341986][ T525] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 35.342304][ T525] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 35.342634][ T525] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 35.342949][ T525] ? __dev_get_by_name (net/core/dev.c:865) 
[ 35.343270][ T525] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 35.343610][ T525] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 35.343934][ T525] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 35.344249][ T525] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 35.344613][ T525] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 35.344942][ T525] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 35.345263][ T525] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.345600][ T525] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 35.345927][ T525] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.346250][ T525] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.346575][ T525] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 35.346894][ T525] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.347215][ T525] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.347547][ T525] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 35.347866][ T525] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.348190][ T525] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 35.348518][ T525] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 35.348843][ T525] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 35.349163][ T525] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 35.349483][ T525] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 35.349806][ T525] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.350132][ T525] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 35.350458][ T525] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 35.350786][ T525] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 35.351110][ T525] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 35.351428][ T525] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 35.351752][ T525] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 35.352154][ T525] ___sys_sendmsg (net/socket.c:2670) 
[ 35.352472][ T525] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 35.352819][ T525] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 35.353142][ T525] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 35.353456][ T525] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 35.353789][ T525] ? __handle_mm_fault (mm/memory.c:6212) 
[ 35.354106][ T525] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 35.354422][ T525] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 35.354770][ T525] __sys_sendmsg (net/socket.c:2700) 
[ 35.355095][ T525] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 35.355411][ T525] ? 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) 
[ 35.355744][ T525] ? 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) 
[ 35.356069][ T525] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.356390][ T525] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 35.356722][ T525] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   35.357116][  T525] RIP: 0033:0x7ffbb88621e7
[ 35.357447][ T525] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   35.358564][  T525] RSP: 002b:00007fff3700ce18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   35.359035][  T525] RAX: ffffffffffffffda RBX: 00007fff3700d550 RCX: 00007ffbb88621e7
[   35.359510][  T525] RDX: 0000000000000000 RSI: 00007fff3700ce80 RDI: 0000000000000005
[   35.359987][  T525] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[   35.360459][  T525] R10: 00007ffbb875a6f8 R11: 0000000000000246 R12: 00007fff3700d570
[   35.360936][  T525] R13: 00000000686e7942 R14: 0000000000499600 R15: 00007fff3700cf6c
| [   39.489814][  T574] ------------[ cut here ]------------
| [ 39.490175][ T574] WARNING: CPU: 0 PID: 574 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) 
| [   39.490822][  T574] Modules linked in: ip_gre gre
| [   39.491807][  T574] Tainted: [W]=WARN
[   39.492050][  T574] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 39.492446][ T574] 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) 
[ 39.492785][ T574] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   39.493923][  T574] RSP: 0018:ffffc90001007000 EFLAGS: 00010246
[   39.494323][  T574] RAX: 0000000000000000 RBX: ffff888009004000 RCX: 0000000000000001
[   39.494805][  T574] RDX: 0000000000000000 RSI: ffffffff8fb10751 RDI: ffffffff8f258280
[   39.495279][  T574] RBP: ffffc900010070e8 R08: ffff888009004218 R09: 0000000000000000
[   39.495766][  T574] R10: ffffc90001007118 R11: ffff88800e6045f0 R12: 1ffff92000200e04
[   39.496249][  T574] R13: 00000000000005b6 R14: ffffc90001007118 R15: ffff888009004218
[   39.496736][  T574] FS:  00007f4c49caf800(0000) GS:ffff8880dad99000(0000) knlGS:0000000000000000
[   39.497301][  T574] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.497710][  T574] CR2: 000000000049c120 CR3: 000000000ce72002 CR4: 0000000000772ef0
[   39.498185][  T574] PKRU: 55555554
[   39.498425][  T574] Call Trace:
[   39.498691][  T574]  <TASK>
[ 39.498857][ T574] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 39.499270][ T574] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 39.499747][ T574] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 39.500164][ T574] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 39.500497][ T574] netif_set_mtu (net/core/dev.c:9652) 
[ 39.500828][ T574] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 39.501158][ T574] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 39.501481][ T574] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 39.501736][ T574] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 39.502058][ T574] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 39.502382][ T574] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 39.502719][ T574] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 39.503116][ T574] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 39.503449][ T574] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 39.503782][ T574] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 39.504108][ T574] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 39.504421][ T574] ? __dev_get_by_name (net/core/dev.c:865) 
[ 39.504747][ T574] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 39.505065][ T574] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 39.505387][ T574] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 39.505709][ T574] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 39.506041][ T574] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 39.506366][ T574] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 39.506701][ T574] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 39.507031][ T574] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 39.507345][ T574] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 39.507671][ T574] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 39.507989][ T574] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 39.508308][ T574] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 39.508635][ T574] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 39.508959][ T574] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 39.509274][ T574] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 39.509599][ T574] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 39.509926][ T574] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 39.510242][ T574] ? 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) 
[ 39.510570][ T574] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 39.510895][ T574] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 39.511210][ T574] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 39.511534][ T574] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 39.511868][ T574] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 39.512187][ T574] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 39.512512][ T574] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 39.512846][ T574] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 39.513163][ T574] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 39.513564][ T574] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 39.513896][ T574] ___sys_sendmsg (net/socket.c:2670) 
[ 39.514223][ T574] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 39.514557][ T574] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 39.514875][ T574] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 39.515195][ T574] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 39.515521][ T574] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 39.515856][ T574] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 39.516176][ T574] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 39.516496][ T574] __sys_sendmsg (net/socket.c:2700) 
[ 39.516822][ T574] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 39.517211][ T574] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 39.517548][ T574] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 39.517871][ T574] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 39.518192][ T574] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   39.518593][  T574] RIP: 0033:0x7f4c49e7c1e7
[ 39.518924][ T574] 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)
[   39.520083][  T574] RSP: 002b:00007ffcf0c3da68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   39.520573][  T574] RAX: ffffffffffffffda RBX: 00007ffcf0c3e1a0 RCX: 00007f4c49e7c1e7
[   39.521058][  T574] RDX: 0000000000000000 RSI: 00007ffcf0c3dad0 RDI: 0000000000000005
[   39.521536][  T574] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[   39.522022][  T574] R10: 00007f4c49d746f8 R11: 0000000000000246 R12: 00007ffcf0c3e1c0
[   39.522494][  T574] R13: 00000000686e7947 R14: 0000000000499600 R15: 00007ffcf0c3dbbc
| [   39.664993][  T575] ------------[ cut here ]------------
| [ 39.665367][ T575] WARNING: CPU: 2 PID: 575 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) 
| [   39.666007][  T575] Modules linked in: ip_gre gre
| [   39.666979][  T575] Tainted: [W]=WARN
[   39.667226][  T575] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 39.667627][ T575] 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) 
[ 39.667953][ T575] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   39.669081][  T575] RSP: 0018:ffffc90001017000 EFLAGS: 00010246
[   39.669477][  T575] RAX: 0000000000000000 RBX: ffff88800a654000 RCX: 0000000000000001
[   39.669954][  T575] RDX: 0000000000000000 RSI: ffffffff8fb10751 RDI: ffffffff8f258280
[   39.670421][  T575] RBP: ffffc900010170e8 R08: ffff88800a654218 R09: 0000000000000000
[   39.670901][  T575] R10: ffffc90001017118 R11: ffff88800ebb15f0 R12: 1ffff92000202e04
[   39.671368][  T575] R13: 00000000000005b6 R14: ffffc90001017118 R15: ffff88800a654218
[   39.671841][  T575] FS:  00007ff2e8d36800(0000) GS:ffff8880dae99000(0000) knlGS:0000000000000000
[   39.672382][  T575] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.672791][  T575] CR2: 000000000049c120 CR3: 000000000d083001 CR4: 0000000000772ef0
[   39.673258][  T575] PKRU: 55555554
[   39.673498][  T575] Call Trace:
[   39.673744][  T575]  <TASK>
[ 39.673913][ T575] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 39.674304][ T575] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 39.674640][ T575] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 39.674963][ T575] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 39.675293][ T575] netif_set_mtu (net/core/dev.c:9652) 
[ 39.675618][ T575] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 39.675957][ T575] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 39.676276][ T575] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 39.676521][ T575] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 39.676850][ T575] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 39.677175][ T575] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 39.677501][ T575] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 39.677902][ T575] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 39.678230][ T575] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 39.678559][ T575] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 39.678888][ T575] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 39.679199][ T575] ? __dev_get_by_name (net/core/dev.c:865) 
[ 39.679518][ T575] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 39.679845][ T575] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 39.680167][ T575] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 39.680479][ T575] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 39.680810][ T575] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 39.681135][ T575] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 39.681457][ T575] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 39.681793][ T575] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 39.682111][ T575] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 39.682427][ T575] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 39.682753][ T575] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 39.683070][ T575] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 39.683396][ T575] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 39.683728][ T575] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 39.684048][ T575] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 39.684391][ T575] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 39.684784][ T575] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 39.685102][ T575] ? 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) 
[ 39.685420][ T575] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 39.685755][ T575] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 39.686109][ T575] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 39.686434][ T575] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 39.686767][ T575] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 39.687091][ T575] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 39.687417][ T575] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 39.687748][ T575] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 39.688065][ T575] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 39.688457][ T575] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 39.688798][ T575] ___sys_sendmsg (net/socket.c:2670) 
[ 39.689116][ T575] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 39.689440][ T575] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 39.689767][ T575] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 39.690086][ T575] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 39.690411][ T575] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 39.690751][ T575] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 39.691069][ T575] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 39.691389][ T575] __sys_sendmsg (net/socket.c:2700) 
[ 39.691712][ T575] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 39.692102][ T575] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 39.692435][ T575] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 39.692759][ T575] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 39.693079][ T575] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   39.693465][  T575] RIP: 0033:0x7ff2e8f031e7
[ 39.693801][ T575] 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)
[   39.694908][  T575] RSP: 002b:00007ffe424b2538 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   39.695380][  T575] RAX: ffffffffffffffda RBX: 00007ffe424b2c70 RCX: 00007ff2e8f031e7
[   39.695861][  T575] RDX: 0000000000000000 RSI: 00007ffe424b25a0 RDI: 0000000000000005
[   39.696338][  T575] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[   39.696813][  T575] R10: 00007ff2e8dfb6f8 R11: 0000000000000246 R12: 00007ffe424b2c90
[   39.697278][  T575] R13: 00000000686e7947 R14: 0000000000499600 R15: 00007ffe424b268c
| [   42.952161][  T618] ------------[ cut here ]------------
| [ 42.952497][ T618] WARNING: CPU: 3 PID: 618 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   42.953164][  T618] Modules linked in: ip_gre gre
| [   42.954111][  T618] Tainted: [W]=WARN
[   42.954350][  T618] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.954739][ T618] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 42.955053][ T618] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   42.956168][  T618] RSP: 0018:ffffc90001127000 EFLAGS: 00010246
[   42.956563][  T618] RAX: 0000000000000000 RBX: ffff88800d131000 RCX: 0000000000000001
[   42.957026][  T618] RDX: 0000000000000000 RSI: ffffffff8fb10751 RDI: ffffffff8f258280
[   42.957482][  T618] RBP: ffffc900011270e8 R08: ffff88800d131218 R09: 0000000000000000
[   42.957949][  T618] R10: ffffc90001127118 R11: ffff888010ee45f0 R12: 1ffff92000224e04
[   42.958407][  T618] R13: 00000000000005b6 R14: ffffc90001127118 R15: ffff88800d131218
[   42.958877][  T618] FS:  00007fac662f8800(0000) GS:ffff8880daf19000(0000) knlGS:0000000000000000
[   42.959415][  T618] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.959810][  T618] CR2: 000000000049c120 CR3: 0000000005acb002 CR4: 0000000000772ef0
[   42.960268][  T618] PKRU: 55555554
[   42.960498][  T618] Call Trace:
[   42.960738][  T618]  <TASK>
[ 42.960894][ T618] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 42.961277][ T618] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.961596][ T618] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.961905][ T618] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 42.962220][ T618] netif_set_mtu (net/core/dev.c:9652) 
[ 42.962526][ T618] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 42.962850][ T618] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 42.963157][ T618] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 42.963390][ T618] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 42.963704][ T618] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 42.964017][ T618] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 42.964327][ T618] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 42.964718][ T618] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 42.965033][ T618] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 42.965343][ T618] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 42.965664][ T618] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 42.965979][ T618] ? __dev_get_by_name (net/core/dev.c:865) 
[ 42.966283][ T618] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 42.966592][ T618] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 42.966903][ T618] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.967207][ T618] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 42.967517][ T618] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 42.967839][ T618] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.968152][ T618] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.968472][ T618] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.968784][ T618] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.969095][ T618] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.969399][ T618] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.969713][ T618] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.970022][ T618] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.970333][ T618] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.970661][ T618] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.970968][ T618] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.971283][ T618] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.971593][ T618] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 42.971907][ T618] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 42.972215][ T618] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.972518][ T618] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.972835][ T618] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.973145][ T618] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.973450][ T618] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.973769][ T618] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.974078][ T618] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.974381][ T618] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.974769][ T618] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 42.975086][ T618] ___sys_sendmsg (net/socket.c:2670) 
[ 42.975392][ T618] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.975714][ T618] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.976027][ T618] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.976335][ T618] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.976656][ T618] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.976966][ T618] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.977271][ T618] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 42.977585][ T618] __sys_sendmsg (net/socket.c:2700) 
[ 42.977888][ T618] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 42.978268][ T618] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.978593][ T618] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.978898][ T618] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.979207][ T618] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.979596][  T618] RIP: 0033:0x7fac664c51e7
[ 42.979910][ T618] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   42.981011][  T618] RSP: 002b:00007fffcc54c5d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.981474][  T618] RAX: ffffffffffffffda RBX: 00007fffcc54cd10 RCX: 00007fac664c51e7
[   42.981941][  T618] RDX: 0000000000000000 RSI: 00007fffcc54c640 RDI: 0000000000000005
[   42.982401][  T618] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[   42.982863][  T618] R10: 00007fac663bd6f8 R11: 0000000000000246 R12: 00007fffcc54cd30
[   42.983321][  T618] R13: 00000000686e794a R14: 0000000000499600 R15: 00007fffcc54c72c
| [   43.117809][  T619] ------------[ cut here ]------------
| [ 43.118147][ T619] WARNING: CPU: 1 PID: 619 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   43.118762][  T619] Modules linked in: ip_gre gre
| [   43.119708][  T619] Tainted: [W]=WARN
[   43.119941][  T619] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 43.120325][ T619] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 43.120645][ T619] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   43.121747][  T619] RSP: 0018:ffffc90001127000 EFLAGS: 00010246
[   43.122135][  T619] RAX: 0000000000000000 RBX: ffff8880091a4000 RCX: 0000000000000001
[   43.122599][  T619] RDX: 0000000000000000 RSI: ffffffff8fb10751 RDI: ffffffff8f258280
[   43.123056][  T619] RBP: ffffc900011270e8 R08: ffff8880091a4218 R09: 0000000000000000
[   43.123518][  T619] R10: ffffc90001127118 R11: ffff88800eff45f0 R12: 1ffff92000224e04
[   43.123981][  T619] R13: 00000000000005b6 R14: ffffc90001127118 R15: ffff8880091a4218
[   43.124438][  T619] FS:  00007f03beb63800(0000) GS:ffff8880dae19000(0000) knlGS:0000000000000000
[   43.124976][  T619] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.125360][  T619] CR2: 000000000049c120 CR3: 0000000010e20004 CR4: 0000000000772ef0
[   43.125833][  T619] PKRU: 55555554
[   43.126071][  T619] Call Trace:
[   43.126298][  T619]  <TASK>
[ 43.126452][ T619] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 43.126837][ T619] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.127144][ T619] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 43.127450][ T619] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 43.127771][ T619] netif_set_mtu (net/core/dev.c:9652) 
[ 43.128080][ T619] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 43.128396][ T619] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 43.128718][ T619] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 43.128951][ T619] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 43.129259][ T619] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 43.129586][ T619] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 43.129906][ T619] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 43.130288][ T619] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 43.130609][ T619] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 43.130918][ T619] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 43.131225][ T619] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 43.131526][ T619] ? __dev_get_by_name (net/core/dev.c:865) 
[ 43.131836][ T619] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 43.132138][ T619] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 43.132454][ T619] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 43.132763][ T619] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 43.133069][ T619] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 43.133384][ T619] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 43.133702][ T619] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 43.134016][ T619] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 43.134315][ T619] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 43.134629][ T619] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 43.134935][ T619] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 43.135239][ T619] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 43.135557][ T619] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.135873][ T619] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 43.136177][ T619] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 43.136481][ T619] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 43.136808][ T619] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 43.137115][ T619] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 43.137421][ T619] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 43.137734][ T619] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 43.138037][ T619] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.138345][ T619] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 43.138661][ T619] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 43.138966][ T619] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 43.139279][ T619] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 43.139593][ T619] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 43.139895][ T619] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 43.140269][ T619] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 43.140596][ T619] ___sys_sendmsg (net/socket.c:2670) 
[ 43.140904][ T619] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 43.141211][ T619] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 43.141518][ T619] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 43.141840][ T619] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.142152][ T619] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.142456][ T619] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.142769][ T619] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 43.143080][ T619] __sys_sendmsg (net/socket.c:2700) 
[ 43.143381][ T619] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 43.143766][ T619] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 43.144089][ T619] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.144394][ T619] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 43.144709][ T619] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   43.145084][  T619] RIP: 0033:0x7f03bed301e7
[ 43.145397][ T619] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   43.146495][  T619] RSP: 002b:00007fffe60fd708 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   43.146960][  T619] RAX: ffffffffffffffda RBX: 00007fffe60fde40 RCX: 00007f03bed301e7
[   43.147416][  T619] RDX: 0000000000000000 RSI: 00007fffe60fd770 RDI: 0000000000000005
[   43.147876][  T619] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[   43.148334][  T619] R10: 00007f03bec286f8 R11: 0000000000000246 R12: 00007fffe60fde60
[   43.148794][  T619] R13: 00000000686e794a R14: 0000000000499600 R15: 00007fffe60fd85c
| [   47.090558][  T668] ------------[ cut here ]------------
| [ 47.090996][ T668] WARNING: CPU: 2 PID: 668 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) 
| [   47.091632][  T668] Modules linked in: ip_gre gre
| [   47.092607][  T668] Tainted: [W]=WARN
[   47.092851][  T668] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.093240][ T668] 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) 
[ 47.093580][ T668] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   47.094690][  T668] RSP: 0018:ffffc90001247000 EFLAGS: 00010246
[   47.095086][  T668] RAX: 0000000000000000 RBX: ffff88800e97c000 RCX: 0000000000000001
[   47.095568][  T668] RDX: 0000000000000000 RSI: ffffffff8fb10751 RDI: ffffffff8f258280
[   47.096047][  T668] RBP: ffffc900012470e8 R08: ffff88800e97c218 R09: 0000000000000000
[   47.096513][  T668] R10: ffffc90001247118 R11: ffff8880058645f0 R12: 1ffff92000248e04
[   47.096990][  T668] R13: 00000000000005b6 R14: ffffc90001247118 R15: ffff88800e97c218
[   47.097461][  T668] FS:  00007f88ea10a800(0000) GS:ffff8880dae99000(0000) knlGS:0000000000000000
[   47.098015][  T668] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.098410][  T668] CR2: 0000000000436890 CR3: 000000000ce1d002 CR4: 0000000000772ef0
[   47.098890][  T668] PKRU: 55555554
[   47.099134][  T668] Call Trace:
[   47.099374][  T668]  <TASK>
[ 47.099552][ T668] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 47.099945][ T668] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 47.100265][ T668] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 47.100593][ T668] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 47.100926][ T668] netif_set_mtu (net/core/dev.c:9652) 
[ 47.101244][ T668] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 47.101584][ T668] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 47.101902][ T668] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 47.102147][ T668] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 47.102469][ T668] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 47.102806][ T668] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 47.103129][ T668] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 47.103518][ T668] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 47.103855][ T668] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 47.104175][ T668] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 47.104497][ T668] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 47.104820][ T668] ? __dev_get_by_name (net/core/dev.c:865) 
[ 47.105142][ T668] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 47.105457][ T668] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 47.105804][ T668] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 47.106128][ T668] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 47.106455][ T668] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 47.106794][ T668] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 47.107116][ T668] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 47.107443][ T668] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 47.107769][ T668] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 47.108093][ T668] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 47.108411][ T668] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 47.108736][ T668] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 47.109059][ T668] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 47.109382][ T668] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 47.109707][ T668] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 47.110024][ T668] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 47.110353][ T668] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 47.110681][ T668] ? 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) 
[ 47.111001][ T668] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 47.111319][ T668] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 47.111648][ T668] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 47.111970][ T668] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 47.112288][ T668] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 47.112623][ T668] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 47.112950][ T668] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 47.113271][ T668] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 47.113599][ T668] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 47.114006][ T668] ___sys_sendmsg (net/socket.c:2670) 
[ 47.114324][ T668] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 47.114654][ T668] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 47.114975][ T668] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 47.115292][ T668] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 47.115619][ T668] ? __handle_mm_fault (mm/memory.c:6212) 
[ 47.115945][ T668] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 47.116260][ T668] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 47.116606][ T668] __sys_sendmsg (net/socket.c:2700) 
[ 47.116924][ T668] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 47.117242][ T668] ? 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) 
[ 47.117574][ T668] ? 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) 
[ 47.117894][ T668] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 47.118211][ T668] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 47.118530][ T668] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   47.118930][  T668] RIP: 0033:0x7f88ea2d71e7
[ 47.119258][ T668] 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)
[   47.120359][  T668] RSP: 002b:00007ffe4ed0bef8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   47.120845][  T668] RAX: ffffffffffffffda RBX: 00007ffe4ed0c630 RCX: 00007f88ea2d71e7
[   47.121309][  T668] RDX: 0000000000000000 RSI: 00007ffe4ed0bf60 RDI: 0000000000000005
[   47.121783][  T668] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[   47.122253][  T668] R10: 00007f88ea1cf6f8 R11: 0000000000000246 R12: 00007ffe4ed0c650
[   47.122729][  T668] R13: 00000000686e794e R14: 0000000000499600 R15: 00007ffe4ed0c04c
| [   47.258119][  T669] ------------[ cut here ]------------
| [ 47.258523][ T669] WARNING: CPU: 3 PID: 669 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) 
| [   47.259136][  T669] Modules linked in: ip_gre gre
| [   47.260079][  T669] Tainted: [W]=WARN
[   47.260310][  T669] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.260695][ T669] 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) 
[ 47.261011][ T669] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   47.262109][  T669] RSP: 0018:ffffc90001257000 EFLAGS: 00010246
[   47.262495][  T669] RAX: 0000000000000000 RBX: ffff888002bf9000 RCX: 0000000000000001
[   47.262964][  T669] RDX: 0000000000000000 RSI: ffffffff8fb10751 RDI: ffffffff8f258280
[   47.263420][  T669] RBP: ffffc900012570e8 R08: ffff888002bf9218 R09: 0000000000000000
[   47.263881][  T669] R10: ffffc90001257118 R11: ffff88800e5d95f0 R12: 1ffff9200024ae04
[   47.264335][  T669] R13: 00000000000005b6 R14: ffffc90001257118 R15: ffff888002bf9218
[   47.264802][  T669] FS:  00007fc357039800(0000) GS:ffff8880daf19000(0000) knlGS:0000000000000000
[   47.265334][  T669] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.265723][  T669] CR2: 0000000000436890 CR3: 000000000bc9a001 CR4: 0000000000772ef0
[   47.266190][  T669] PKRU: 55555554
[   47.266419][  T669] Call Trace:
[   47.266652][  T669]  <TASK>
[ 47.266811][ T669] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 47.267189][ T669] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 47.267494][ T669] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 47.267822][ T669] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 47.268135][ T669] netif_set_mtu (net/core/dev.c:9652) 
[ 47.268437][ T669] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 47.268758][ T669] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 47.269065][ T669] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 47.269294][ T669] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 47.269607][ T669] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 47.269918][ T669] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 47.270225][ T669] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 47.270609][ T669] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 47.270921][ T669] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 47.271229][ T669] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 47.271536][ T669] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 47.271845][ T669] ? __dev_get_by_name (net/core/dev.c:865) 
[ 47.272147][ T669] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 47.272446][ T669] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 47.272761][ T669] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 47.273061][ T669] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 47.273368][ T669] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 47.273693][ T669] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 47.274001][ T669] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 47.274313][ T669] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 47.274621][ T669] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 47.274927][ T669] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 47.275229][ T669] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 47.275534][ T669] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 47.275860][ T669] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 47.276170][ T669] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 47.276471][ T669] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 47.276784][ T669] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 47.277098][ T669] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 47.277401][ T669] ? 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) 
[ 47.277714][ T669] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 47.278025][ T669] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 47.278326][ T669] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 47.278642][ T669] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 47.278949][ T669] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 47.279252][ T669] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 47.279569][ T669] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 47.279874][ T669] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 47.280176][ T669] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 47.280575][ T669] ___sys_sendmsg (net/socket.c:2670) 
[ 47.280877][ T669] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 47.281179][ T669] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 47.281482][ T669] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 47.281790][ T669] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 47.282096][ T669] ? __handle_mm_fault (mm/memory.c:6212) 
[ 47.282399][ T669] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 47.282706][ T669] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 47.283028][ T669] __sys_sendmsg (net/socket.c:2700) 
[ 47.283331][ T669] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 47.283639][ T669] ? 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) 
[ 47.283952][ T669] ? 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) 
[ 47.284257][ T669] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 47.284573][ T669] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 47.284878][ T669] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   47.285251][  T669] RIP: 0033:0x7fc3572061e7
[ 47.285569][ T669] 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)
[   47.286661][  T669] RSP: 002b:00007fff50e317e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   47.287117][  T669] RAX: ffffffffffffffda RBX: 00007fff50e31f20 RCX: 00007fc3572061e7
[   47.287579][  T669] RDX: 0000000000000000 RSI: 00007fff50e31850 RDI: 0000000000000005
[   47.288032][  T669] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[   47.288484][  T669] R10: 00007fc3570fe6f8 R11: 0000000000000246 R12: 00007fff50e31f40
[   47.288946][  T669] R13: 00000000686e794e R14: 0000000000499600 R15: 00007fff50e3193c
| [   51.325421][  T712] ------------[ cut here ]------------
| [ 51.325874][ T712] WARNING: CPU: 2 PID: 712 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) 
| [   51.326494][  T712] Modules linked in: ip_gre gre
| [   51.327457][  T712] Tainted: [W]=WARN
[   51.327710][  T712] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 51.328101][ T712] 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) 
[ 51.328428][ T712] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   51.329528][  T712] RSP: 0018:ffffc90001397000 EFLAGS: 00010246
[   51.330043][  T712] RAX: 0000000000000000 RBX: ffff888009004000 RCX: 0000000000000001
[   51.330586][  T712] RDX: 0000000000000000 RSI: ffffffff8fb10751 RDI: ffffffff8f258280
[   51.331116][  T712] RBP: ffffc900013970e8 R08: ffff888009004218 R09: 0000000000000000
[   51.331672][  T712] R10: ffffc90001397118 R11: ffff88800f0545f0 R12: 1ffff92000272e04
[   51.332204][  T712] R13: 00000000000005b6 R14: ffffc90001397118 R15: ffff888009004218
[   51.332746][  T712] FS:  00007fc08c442800(0000) GS:ffff8880dae99000(0000) knlGS:0000000000000000
[   51.333362][  T712] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.333823][  T712] CR2: 0000000000436890 CR3: 0000000011481005 CR4: 0000000000772ef0
[   51.334355][  T712] PKRU: 55555554
[   51.334640][  T712] Call Trace:
[   51.334929][  T712]  <TASK>
[ 51.335119][ T712] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 51.335574][ T712] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 51.335956][ T712] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 51.336320][ T712] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 51.336700][ T712] netif_set_mtu (net/core/dev.c:9652) 
[ 51.337057][ T712] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 51.337427][ T712] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 51.337795][ T712] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 51.338074][ T712] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 51.338433][ T712] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 51.338810][ T712] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 51.339175][ T712] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 51.339630][ T712] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 51.340001][ T712] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 51.340362][ T712] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 51.340734][ T712] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 51.341092][ T712] ? __dev_get_by_name (net/core/dev.c:865) 
[ 51.341451][ T712] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 51.341818][ T712] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 51.342183][ T712] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 51.342537][ T712] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 51.342913][ T712] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 51.343282][ T712] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 51.343656][ T712] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 51.344025][ T712] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 51.344386][ T712] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 51.344757][ T712] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 51.345115][ T712] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 51.345472][ T712] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 51.345854][ T712] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 51.346223][ T712] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 51.346592][ T712] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 51.346951][ T712] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 51.347323][ T712] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 51.347692][ T712] ? 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) 
[ 51.348055][ T712] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 51.348418][ T712] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 51.348788][ T712] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 51.349153][ T712] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 51.349513][ T712] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 51.349882][ T712] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 51.350249][ T712] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 51.350618][ T712] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 51.350978][ T712] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 51.351429][ T712] ___sys_sendmsg (net/socket.c:2670) 
[ 51.351797][ T712] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 51.352158][ T712] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 51.352520][ T712] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 51.352900][ T712] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 51.353269][ T712] ? __handle_mm_fault (mm/memory.c:6212) 
[ 51.353646][ T712] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 51.354003][ T712] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 51.354380][ T712] __sys_sendmsg (net/socket.c:2700) 
[ 51.354751][ T712] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 51.355109][ T712] ? 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) 
[ 51.355473][ T712] ? 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) 
[ 51.355850][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 51.356222][ T712] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 51.356593][ T712] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   51.357037][  T712] RIP: 0033:0x7fc08c60f1e7
[ 51.357403][ T712] 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)
[   51.358664][  T712] RSP: 002b:00007ffe98e8ee28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   51.359202][  T712] RAX: ffffffffffffffda RBX: 00007ffe98e8f560 RCX: 00007fc08c60f1e7
[   51.359741][  T712] RDX: 0000000000000000 RSI: 00007ffe98e8ee90 RDI: 0000000000000005
[   51.360268][  T712] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[   51.360814][  T712] R10: 00007fc08c5076f8 R11: 0000000000000246 R12: 00007ffe98e8f580
[   51.361338][  T712] R13: 00000000686e7952 R14: 0000000000499600 R15: 00007ffe98e8ef7c
| [   51.490651][  T713] ------------[ cut here ]------------
| [ 51.491080][ T713] WARNING: CPU: 0 PID: 713 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) 
| [   51.491745][  T713] Modules linked in: ip_gre gre
| [   51.493114][  T713] Tainted: [W]=WARN
[   51.493377][  T713] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 51.493809][ T713] 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) 
[ 51.494156][ T713] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   51.495365][  T713] RSP: 0018:ffffc90001327000 EFLAGS: 00010246
[   51.495807][  T713] RAX: 0000000000000000 RBX: ffff88800f354000 RCX: 0000000000000001
[   51.496324][  T713] RDX: 0000000000000000 RSI: ffffffff8fb10751 RDI: ffffffff8f258280
[   51.496846][  T713] RBP: ffffc900013270e8 R08: ffff88800f354218 R09: 0000000000000000
[   51.497346][  T713] R10: ffffc90001327118 R11: ffff88800a0d95f0 R12: 1ffff92000264e04
[   51.497854][  T713] R13: 00000000000005b6 R14: ffffc90001327118 R15: ffff88800f354218
[   51.498359][  T713] FS:  00007f7196357800(0000) GS:ffff8880dad99000(0000) knlGS:0000000000000000
[   51.498950][  T713] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.499378][  T713] CR2: 0000000000436890 CR3: 00000000114a6004 CR4: 0000000000772ef0
[   51.499893][  T713] PKRU: 55555554
[   51.500148][  T713] Call Trace:
[   51.500396][  T713]  <TASK>
[ 51.500574][ T713] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 51.500989][ T713] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 51.501326][ T713] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 51.501675][ T713] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 51.502022][ T713] netif_set_mtu (net/core/dev.c:9652) 
[ 51.502357][ T713] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 51.502714][ T713] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 51.503051][ T713] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 51.503303][ T713] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 51.503653][ T713] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 51.504003][ T713] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 51.504346][ T713] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 51.504775][ T713] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 51.505120][ T713] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 51.505456][ T713] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 51.505803][ T713] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 51.506143][ T713] ? __dev_get_by_name (net/core/dev.c:865) 
[ 51.506479][ T713] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 51.506820][ T713] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 51.507158][ T713] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 51.507492][ T713] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 51.507841][ T713] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 51.508186][ T713] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 51.508524][ T713] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 51.508886][ T713] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 51.509225][ T713] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 51.509576][ T713] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 51.509911][ T713] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 51.510248][ T713] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 51.510594][ T713] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 51.510933][ T713] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 51.511264][ T713] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 51.511630][ T713] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 51.511978][ T713] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 51.512310][ T713] ? 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) 
[ 51.512662][ T713] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 51.513002][ T713] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 51.513339][ T713] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 51.513692][ T713] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 51.514037][ T713] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 51.514375][ T713] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 51.514728][ T713] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 51.515067][ T713] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 51.515397][ T713] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 51.515829][ T713] ? debug_object_activate (lib/debugobjects.c:837) 
[ 51.516171][ T713] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 51.516515][ T713] ___sys_sendmsg (net/socket.c:2670) 
[ 51.516864][ T713] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 51.517204][ T713] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 51.517550][ T713] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 51.517890][ T713] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 51.518227][ T713] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 51.518575][ T713] ? clockevents_program_event (kernel/time/clockevents.c:326) 
[ 51.518921][ T713] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 51.519266][ T713] __sys_sendmsg (net/socket.c:2700) 
[ 51.519607][ T713] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 51.519946][ T713] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3)) 
[ 51.520376][ T713] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 51.520721][ T713] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 51.521063][ T713] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   51.521479][  T713] RIP: 0033:0x7f71965241e7
[ 51.521835][ T713] 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)
[   51.523036][  T713] RSP: 002b:00007ffe9c8c3828 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   51.523555][  T713] RAX: ffffffffffffffda RBX: 00007ffe9c8c3f60 RCX: 00007f71965241e7
[   51.524060][  T713] RDX: 0000000000000000 RSI: 00007ffe9c8c3890 RDI: 0000000000000005
[   51.524573][  T713] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[   51.525072][  T713] R10: 00007f719641c6f8 R11: 0000000000000246 R12: 00007ffe9c8c3f80
[   51.525585][  T713] R13: 00000000686e7953 R14: 0000000000499600 R15: 00007ffe9c8c397c
| [   56.519172][  T769] ------------[ cut here ]------------
| [ 56.519505][ T769] WARNING: CPU: 0 PID: 769 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) 
| [   56.520123][  T769] Modules linked in: ip_gre gre
| [   56.521066][  T769] Tainted: [W]=WARN
[   56.521298][  T769] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 56.521686][ T769] 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) 
[ 56.521999][ T769] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   56.523101][  T769] RSP: 0018:ffffc90001507000 EFLAGS: 00010246
[   56.523489][  T769] RAX: 0000000000000000 RBX: ffff88800b324000 RCX: 0000000000000001
[   56.523955][  T769] RDX: 0000000000000000 RSI: ffffffff8fb10751 RDI: ffffffff8f258280
[   56.524412][  T769] RBP: ffffc900015070e8 R08: ffff88800b324218 R09: 0000000000000000
[   56.524869][  T769] R10: ffffc90001507118 R11: ffff888007cc45f0 R12: 1ffff920002a0e04
[   56.525324][  T769] R13: 00000000000005b6 R14: ffffc90001507118 R15: ffff88800b324218
[   56.525784][  T769] FS:  00007f8c969de800(0000) GS:ffff8880dad99000(0000) knlGS:0000000000000000
[   56.526322][  T769] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   56.526713][  T769] CR2: 000000000049c120 CR3: 000000000be43005 CR4: 0000000000772ef0
[   56.527169][  T769] PKRU: 55555554
[   56.527398][  T769] Call Trace:
[   56.527644][  T769]  <TASK>
[ 56.527801][ T769] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 56.528181][ T769] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 56.528488][ T769] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 56.528849][ T769] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 56.529168][ T769] netif_set_mtu (net/core/dev.c:9652) 
[ 56.529470][ T769] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 56.529794][ T769] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 56.530105][ T769] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 56.530340][ T769] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 56.530654][ T769] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 56.530966][ T769] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 56.531274][ T769] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 56.531672][ T769] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 56.531989][ T769] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 56.532293][ T769] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 56.532611][ T769] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 56.532912][ T769] ? __dev_get_by_name (net/core/dev.c:865) 
[ 56.533215][ T769] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 56.533517][ T769] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 56.533835][ T769] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 56.534135][ T769] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 56.534442][ T769] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 56.534777][ T769] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 56.535089][ T769] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 56.535407][ T769] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 56.535727][ T769] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 56.536051][ T769] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 56.536354][ T769] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 56.536667][ T769] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 56.536979][ T769] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 56.537294][ T769] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 56.537608][ T769] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 56.537914][ T769] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 56.538228][ T769] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 56.538534][ T769] ? 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) 
[ 56.538849][ T769] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 56.539154][ T769] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 56.539456][ T769] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 56.539782][ T769] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 56.540088][ T769] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 56.540393][ T769] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 56.540715][ T769] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 56.541021][ T769] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 56.541320][ T769] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 56.541705][ T769] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 56.542020][ T769] ___sys_sendmsg (net/socket.c:2670) 
[ 56.542324][ T769] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 56.542642][ T769] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 56.542946][ T769] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 56.543251][ T769] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 56.543580][ T769] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 56.543885][ T769] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 56.544187][ T769] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 56.544495][ T769] __sys_sendmsg (net/socket.c:2700) 
[ 56.544806][ T769] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 56.545181][ T769] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 56.545496][ T769] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 56.545810][ T769] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 56.546131][ T769] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   56.546515][  T769] RIP: 0033:0x7f8c96bab1e7
[ 56.546839][ T769] 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)
[   56.547938][  T769] RSP: 002b:00007ffc3d7dbad8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   56.548400][  T769] RAX: ffffffffffffffda RBX: 00007ffc3d7dc210 RCX: 00007f8c96bab1e7
[   56.548865][  T769] RDX: 0000000000000000 RSI: 00007ffc3d7dbb40 RDI: 0000000000000005
[   56.549328][  T769] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[   56.549793][  T769] R10: 00007f8c96aa36f8 R11: 0000000000000246 R12: 00007ffc3d7dc230
[   56.550248][  T769] R13: 00000000686e7958 R14: 0000000000499600 R15: 00007ffc3d7dbc2c
| [   56.677061][  T770] ------------[ cut here ]------------
| [ 56.677426][ T770] WARNING: CPU: 2 PID: 770 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) 
| [   56.678829][  T770] Modules linked in: ip_gre gre
| [   56.680347][  T770] Tainted: [W]=WARN
[   56.680644][  T770] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 56.681035][ T770] 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) 
[ 56.681360][ T770] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   56.682471][  T770] RSP: 0018:ffffc90001517000 EFLAGS: 00010246
[   56.682877][  T770] RAX: 0000000000000000 RBX: ffff888010ec4000 RCX: 0000000000000001
[   56.683344][  T770] RDX: 0000000000000000 RSI: ffffffff8fb10751 RDI: ffffffff8f258280
[   56.683819][  T770] RBP: ffffc900015170e8 R08: ffff888010ec4218 R09: 0000000000000000
[   56.684293][  T770] R10: ffffc90001517118 R11: ffff88800eb845f0 R12: 1ffff920002a2e04
[   56.684768][  T770] R13: 00000000000005b6 R14: ffffc90001517118 R15: ffff888010ec4218
[   56.685230][  T770] FS:  00007f77493c0800(0000) GS:ffff8880dae99000(0000) knlGS:0000000000000000
[   56.685800][  T770] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   56.686202][  T770] CR2: 000000000049c120 CR3: 0000000010fc6005 CR4: 0000000000772ef0
[   56.686684][  T770] PKRU: 55555554
[   56.686925][  T770] Call Trace:
[   56.687162][  T770]  <TASK>
[ 56.687328][ T770] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 56.687731][ T770] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 56.688051][ T770] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 56.688369][ T770] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 56.688707][ T770] netif_set_mtu (net/core/dev.c:9652) 
[ 56.689029][ T770] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 56.689357][ T770] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 56.689686][ T770] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 56.689929][ T770] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 56.690248][ T770] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 56.690579][ T770] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 56.690900][ T770] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 56.691290][ T770] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 56.691627][ T770] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 56.691943][ T770] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 56.692262][ T770] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 56.692584][ T770] ? __dev_get_by_name (net/core/dev.c:865) 
[ 56.692901][ T770] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 56.693214][ T770] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 56.693549][ T770] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 56.693861][ T770] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 56.694180][ T770] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 56.694503][ T770] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 56.694835][ T770] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 56.695161][ T770] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 56.695474][ T770] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 56.695805][ T770] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 56.696143][ T770] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 56.696458][ T770] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 56.696790][ T770] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 56.697110][ T770] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 56.697425][ T770] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 56.697751][ T770] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 56.698081][ T770] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 56.698398][ T770] ? 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) 
[ 56.698725][ T770] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 56.699045][ T770] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 56.699359][ T770] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 56.699692][ T770] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 56.700014][ T770] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 56.700332][ T770] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 56.700673][ T770] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 56.700993][ T770] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 56.701307][ T770] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 56.701706][ T770] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 56.702034][ T770] ___sys_sendmsg (net/socket.c:2670) 
[ 56.702354][ T770] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 56.702681][ T770] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 56.703001][ T770] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 56.703317][ T770] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 56.703653][ T770] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 56.703968][ T770] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 56.704285][ T770] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 56.704615][ T770] __sys_sendmsg (net/socket.c:2700) 
[ 56.704931][ T770] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 56.705318][ T770] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 56.705661][ T770] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 56.705986][ T770] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 56.706306][ T770] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   56.706701][  T770] RIP: 0033:0x7f774958d1e7
[ 56.707026][ T770] 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)
[   56.708134][  T770] RSP: 002b:00007ffe53def9c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   56.708614][  T770] RAX: ffffffffffffffda RBX: 00007ffe53df0100 RCX: 00007f774958d1e7
[   56.709082][  T770] RDX: 0000000000000000 RSI: 00007ffe53defa30 RDI: 0000000000000005
[   56.709555][  T770] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[   56.710027][  T770] R10: 00007f77494856f8 R11: 0000000000000246 R12: 00007ffe53df0120
[   56.710493][  T770] R13: 00000000686e7958 R14: 0000000000499600 R15: 00007ffe53defb1c
| [   60.678282][  T813] ------------[ cut here ]------------
| [ 60.678700][ T813] WARNING: CPU: 3 PID: 813 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) 
| [   60.679302][  T813] Modules linked in: ip_gre gre
| [   60.680264][  T813] Tainted: [W]=WARN
[   60.680495][  T813] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 60.680885][ T813] 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) 
[ 60.681199][ T813] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   60.682289][  T813] RSP: 0018:ffffc90001607000 EFLAGS: 00010246
[   60.682686][  T813] RAX: 0000000000000000 RBX: ffff8880083d1000 RCX: 0000000000000001
[   60.683142][  T813] RDX: 0000000000000000 RSI: ffffffff8fb10751 RDI: ffffffff8f258280
[   60.683610][  T813] RBP: ffffc900016070e8 R08: ffff8880083d1218 R09: 0000000000000000
[   60.684067][  T813] R10: ffffc90001607118 R11: ffff88800c9e15f0 R12: 1ffff920002c0e04
[   60.684521][  T813] R13: 00000000000005b6 R14: ffffc90001607118 R15: ffff8880083d1218
[   60.684983][  T813] FS:  00007fbb1c5d2800(0000) GS:ffff8880daf19000(0000) knlGS:0000000000000000
[   60.685516][  T813] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   60.685918][  T813] CR2: 000000000049c120 CR3: 000000000fb91004 CR4: 0000000000772ef0
[   60.686378][  T813] PKRU: 55555554
[   60.686619][  T813] Call Trace:
[   60.686847][  T813]  <TASK>
[ 60.687001][ T813] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 60.687377][ T813] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 60.687691][ T813] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 60.687996][ T813] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 60.688307][ T813] netif_set_mtu (net/core/dev.c:9652) 
[ 60.688620][ T813] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 60.688936][ T813] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 60.689239][ T813] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 60.689471][ T813] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 60.689783][ T813] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 60.690097][ T813] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 60.690404][ T813] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 60.690793][ T813] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 60.691113][ T813] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 60.691421][ T813] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 60.691736][ T813] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 60.692039][ T813] ? __dev_get_by_name (net/core/dev.c:865) 
[ 60.692346][ T813] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 60.692655][ T813] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 60.692964][ T813] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 60.693263][ T813] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 60.693581][ T813] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 60.693896][ T813] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 60.694204][ T813] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 60.694519][ T813] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 60.694831][ T813] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 60.695137][ T813] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 60.695438][ T813] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 60.695749][ T813] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 60.696069][ T813] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 60.696379][ T813] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 60.696692][ T813] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 60.697002][ T813] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 60.697320][ T813] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 60.697634][ T813] ? 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) 
[ 60.697941][ T813] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 60.698250][ T813] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 60.698565][ T813] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 60.698880][ T813] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 60.699190][ T813] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 60.699496][ T813] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 60.699814][ T813] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 60.700127][ T813] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 60.700430][ T813] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 60.700814][ T813] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 60.701133][ T813] ___sys_sendmsg (net/socket.c:2670) 
[ 60.701439][ T813] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 60.701756][ T813] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 60.702058][ T813] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 60.702365][ T813] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 60.702687][ T813] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 60.702999][ T813] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 60.703303][ T813] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 60.703619][ T813] __sys_sendmsg (net/socket.c:2700) 
[ 60.703921][ T813] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 60.704296][ T813] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 60.704623][ T813] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 60.704928][ T813] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 60.705233][ T813] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   60.705618][  T813] RIP: 0033:0x7fbb1c79f1e7
[ 60.705936][ T813] 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)
[   60.707029][  T813] RSP: 002b:00007ffe935ac208 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   60.707490][  T813] RAX: ffffffffffffffda RBX: 00007ffe935ac940 RCX: 00007fbb1c79f1e7
[   60.707951][  T813] RDX: 0000000000000000 RSI: 00007ffe935ac270 RDI: 0000000000000005
[   60.708530][  T813] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[   60.709005][  T813] R10: 00007fbb1c6976f8 R11: 0000000000000246 R12: 00007ffe935ac960
[   60.709465][  T813] R13: 00000000686e795c R14: 0000000000499600 R15: 00007ffe935ac35c
| [   60.861433][  T814] ------------[ cut here ]------------
| [ 60.861847][ T814] WARNING: CPU: 0 PID: 814 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) 
| [   60.862449][  T814] Modules linked in: ip_gre gre
| [   60.863392][  T814] Tainted: [W]=WARN
[   60.863636][  T814] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 60.864019][ T814] 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) 
[ 60.864330][ T814] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   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 da fc 9b 00       	call   0x9bfcfb
  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
[   60.865426][  T814] RSP: 0018:ffffc90001617000 EFLAGS: 00010246
[   60.865817][  T814] RAX: 0000000000000000 RBX: ffff888005624000 RCX: 0000000000000001
[   60.866283][  T814] RDX: 0000000000000000 RSI: ffffffff8fb10751 RDI: ffffffff8f258280
[   60.866742][  T814] RBP: ffffc900016170e8 R08: ffff888005624218 R09: 0000000000000000
[   60.867194][  T814] R10: ffffc90001617118 R11: ffff88800c9e45f0 R12: 1ffff920002c2e04
[   60.867657][  T814] R13: 00000000000005b6 R14: ffffc90001617118 R15: ffff888005624218
[   60.868109][  T814] FS:  00007fe6482b5800(0000) GS:ffff8880dad99000(0000) knlGS:0000000000000000
[   60.868647][  T814] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   60.869029][  T814] CR2: 000000000049c120 CR3: 0000000010d0e005 CR4: 0000000000772ef0
[   60.869486][  T814] PKRU: 55555554
[   60.869719][  T814] Call Trace:
[   60.869945][  T814]  <TASK>
[ 60.870099][ T814] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 60.870475][ T814] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 60.870787][ T814] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 60.871092][ T814] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 60.871403][ T814] netif_set_mtu (net/core/dev.c:9652) 
[ 60.871719][ T814] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 60.872034][ T814] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 60.872337][ T814] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 60.872574][ T814] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 60.872877][ T814] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 60.873187][ T814] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 60.873494][ T814] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 60.873880][ T814] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 60.874192][ T814] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 60.874496][ T814] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 60.874807][ T814] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 60.875107][ T814] ? __dev_get_by_name (net/core/dev.c:865) 
[ 60.875409][ T814] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 60.875717][ T814] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 60.876039][ T814] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 60.876339][ T814] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 60.876652][ T814] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 60.876967][ T814] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 60.877274][ T814] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 60.877597][ T814] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 60.877897][ T814] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 60.878199][ T814] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 60.878506][ T814] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 60.878816][ T814] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 60.879121][ T814] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 60.879430][ T814] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 60.879742][ T814] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 60.880047][ T814] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 60.880360][ T814] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 60.880672][ T814] ? 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) 
[ 60.880977][ T814] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 60.881281][ T814] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 60.881591][ T814] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 60.881898][ T814] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 60.882202][ T814] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 60.882503][ T814] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 60.882825][ T814] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 60.883129][ T814] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 60.883428][ T814] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 60.883813][ T814] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 60.884128][ T814] ___sys_sendmsg (net/socket.c:2670) 
[ 60.884432][ T814] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 60.884746][ T814] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 60.885054][ T814] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 60.885358][ T814] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 60.885677][ T814] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 60.885989][ T814] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 60.886291][ T814] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 60.886606][ T814] __sys_sendmsg (net/socket.c:2700) 
[ 60.886999][ T814] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 60.887373][ T814] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 60.887702][ T814] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 60.888008][ T814] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 60.888313][ T814] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   60.888693][  T814] RIP: 0033:0x7fe6484821e7
[ 60.889005][ T814] 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)
[   60.890137][  T814] RSP: 002b:00007fff61aa4908 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   60.890602][  T814] RAX: ffffffffffffffda RBX: 00007fff61aa5040 RCX: 00007fe6484821e7
[   60.891055][  T814] RDX: 0000000000000000 RSI: 00007fff61aa4970 RDI: 0000000000000005
[   60.891510][  T814] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[   60.891974][  T814] R10: 00007fe64837a6f8 R11: 0000000000000246 R12: 00007fff61aa5060


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