======================================
| [   20.207826][  T313] ip_gre: GRE over IPv4 tunneling driver
| [   20.266800][  T312] ------------[ cut here ]------------
| [ 20.267280][ T312] WARNING: CPU: 0 PID: 312 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) 
| [   20.268012][  T312] Modules linked in: ip_gre gre vrf veth
[   20.269218][  T312] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.269785][ T312] 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) 
[ 20.270112][ T312] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   20.271312][  T312] RSP: 0018:ffffc90000617000 EFLAGS: 00010246
[   20.271743][  T312] RAX: 0000000000000000 RBX: ffff888009339000 RCX: 0000000000000001
[   20.272258][  T312] RDX: 0000000000000000 RSI: ffffffff9509b941 RDI: ffffffff948555e0
[   20.272771][  T312] RBP: ffffc900006170e8 R08: ffff888009339218 R09: 0000000000000000
[   20.273293][  T312] R10: ffffc90000617118 R11: ffffffff95579160 R12: 1ffff920000c2e04
[   20.273828][  T312] R13: 00000000000005b6 R14: ffffc90000617118 R15: ffff888009339218
[   20.274334][  T312] FS:  00007fc2f1432800(0000) GS:ffff8880982b7000(0000) knlGS:0000000000000000
[   20.275178][  T312] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.275724][  T312] CR2: 0000000000436890 CR3: 000000000bb52005 CR4: 0000000000772ef0
[   20.276241][  T312] PKRU: 55555554
[   20.276489][  T312] Call Trace:
[   20.276759][  T312]  <TASK>
[ 20.276948][ T312] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 20.277369][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.277725][ T312] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.278072][ T312] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 20.278399][ T312] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 20.278788][ T312] netif_set_mtu (net/core/dev.c:9652) 
[ 20.279158][ T312] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.279558][ T312] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 20.279904][ T312] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.280145][ T312] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 20.280498][ T312] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 20.280897][ T312] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 20.281271][ T312] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 20.281710][ T312] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 20.282070][ T312] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 20.282385][ T312] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 20.282746][ T312] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 20.283086][ T312] ? __dev_get_by_name (net/core/dev.c:865) 
[ 20.283445][ T312] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 20.283797][ T312] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 20.284159][ T312] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.284492][ T312] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 20.284828][ T312] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 20.285189][ T312] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.285567][ T312] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.285956][ T312] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.286300][ T312] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.286667][ T312] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.287018][ T312] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.287404][ T312] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.287774][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.288139][ T312] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.288513][ T312] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.288890][ T312] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.289241][ T312] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.289605][ T312] ? 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) 
[ 20.289967][ T312] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 20.290295][ T312] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.290701][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.291049][ T312] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.293611][ T312] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.294735][ T312] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.295093][ T312] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.295453][ T312] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.295799][ T312] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.296268][ T312] ___sys_sendmsg (net/socket.c:2670) 
[ 20.296628][ T312] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.296963][ T312] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 20.297291][ T312] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 20.297631][ T312] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 20.298022][ T312] ? __handle_mm_fault (mm/memory.c:6212) 
[ 20.298357][ T312] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 20.298743][ T312] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 20.299152][ T312] __sys_sendmsg (net/socket.c:2700) 
[ 20.299500][ T312] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.303274][ T312] ? 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) 
[ 20.303932][ T312] ? 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) 
[ 20.304428][ T312] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.304794][ T312] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.305263][ T312] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.305943][  T312] RIP: 0033:0x7fc2f15ff1e7
[ 20.306331][ T312] Code: Unable to access opcode bytes at 0x7fc2f15ff1bd.

Code starting with the faulting instruction
===========================================
[   20.306926][  T312] RSP: 002b:00007ffe4cef5878 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.307480][  T312] RAX: ffffffffffffffda RBX: 00007ffe4cef5fa0 RCX: 00007fc2f15ff1e7
[   20.308818][  T312] RDX: 0000000000000000 RSI: 00007ffe4cef58e0 RDI: 0000000000000005
[   20.309991][  T312] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[   20.311294][  T312] R10: 00007fc2f14f76f8 R11: 0000000000000246 R12: 00007ffe4cef5fc0
[   20.312197][  T312] R13: 00000000686e479c R14: 0000000000499600 R15: 00007ffe4cef59cc
| [   23.148447][  T340] ------------[ cut here ]------------
| [ 23.148802][ T340] WARNING: CPU: 2 PID: 340 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) 
| [   23.149423][  T340] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall sch_ingress ip_gre gre vrf veth
| [   23.150899][  T340] Tainted: [W]=WARN
[   23.151152][  T340] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 23.151555][ T340] 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) 
[ 23.151885][ T340] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   23.153000][  T340] RSP: 0018:ffffc900005c6ef0 EFLAGS: 00010246
[   23.153399][  T340] RAX: 0000000000000000 RBX: ffff88800f412000 RCX: 0000000000000001
[   23.153878][  T340] RDX: 0000000000000000 RSI: ffffffff9509b941 RDI: ffffffff948555e0
[   23.154349][  T340] RBP: ffffc900005c6fe0 R08: 0000000000000000 R09: 0000000000000000
[   23.154834][  T340] R10: ffffc900005c7010 R11: ffffffff95ea8918 R12: 1ffff920000b8de2
[   23.155302][  T340] R13: 00000000000005dc R14: ffffc900005c7010 R15: ffff88800f412f08
[   23.157292][  T340] FS:  00007f923f9c5800(0000) GS:ffff8880983b7000(0000) knlGS:0000000000000000
[   23.157866][  T340] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.158264][  T340] CR2: 00000000004e5aa8 CR3: 000000000c8cc002 CR4: 0000000000772ef0
[   23.158755][  T340] PKRU: 55555554
[   23.159002][  T340] Call Trace:
[   23.159242][  T340]  <TASK>
[ 23.159411][ T340] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 23.159752][ T340] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.160088][ T340] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 23.160405][ T340] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 23.160826][ T340] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 23.161144][ T340] netif_set_mtu (net/core/dev.c:9652) 
[ 23.161461][ T340] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 23.161797][ T340] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 23.162230][ T340] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 23.162480][ T340] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 23.162927][ T340] br_add_if (net/bridge/br_if.c:697) bridge 
[ 23.163285][ T340] do_set_master (net/core/rtnetlink.c:2948) 
[ 23.163622][ T340] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 23.163943][ T340] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 23.164339][ T340] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 23.164670][ T340] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 23.164987][ T340] ? __kernel_text_address (kernel/extable.c:79) 
[ 23.165308][ T340] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.165639][ T340] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 23.165955][ T340] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 23.166344][ T340] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.166686][ T340] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.167002][ T340] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 23.167323][ T340] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 23.167654][ T340] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.167970][ T340] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 23.168284][ T340] ? __create_object (mm/kmemleak.c:771) 
[ 23.168617][ T340] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 23.168934][ T340] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 23.169252][ T340] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 23.169670][ T340] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 23.169997][ T340] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 23.170318][ T340] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.170652][ T340] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.170977][ T340] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.171295][ T340] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 23.171621][ T340] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.171939][ T340] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.172260][ T340] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 23.172589][ T340] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.172908][ T340] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.173227][ T340] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 23.173555][ T340] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.173871][ T340] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 23.174198][ T340] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 23.174537][ T340] ? 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) 
[ 23.174857][ T340] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 23.175177][ T340] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 23.175491][ T340] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.175822][ T340] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 23.176144][ T340] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 23.176460][ T340] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 23.176805][ T340] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 23.177132][ T340] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 23.177445][ T340] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 23.177857][ T340] ___sys_sendmsg (net/socket.c:2670) 
[ 23.178171][ T340] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 23.178486][ T340] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 23.178899][ T340] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 23.179228][ T340] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.179560][ T340] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.179894][ T340] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.180209][ T340] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 23.180536][ T340] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.180862][ T340] __sys_sendmsg (net/socket.c:2700) 
[ 23.181175][ T340] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 23.181573][ T340] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 23.181910][ T340] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.182227][ T340] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 23.182567][ T340] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   23.182961][  T340] RIP: 0033:0x7f923fb921e7
[ 23.183288][ T340] 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)
[   23.184400][  T340] RSP: 002b:00007ffff10890e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   23.184880][  T340] RAX: ffffffffffffffda RBX: 00007ffff1089810 RCX: 00007f923fb921e7
[   23.185350][  T340] RDX: 0000000000000000 RSI: 00007ffff1089150 RDI: 0000000000000005
[   23.185828][  T340] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   23.186302][  T340] R10: 000000000b888910 R11: 0000000000000246 R12: 0000000000000004
[   23.186786][  T340] R13: 00000000686e479f R14: 0000000000499600 R15: 0000000000000000
| [   23.421350][  T343] ------------[ cut here ]------------
| [ 23.421698][ T343] WARNING: CPU: 3 PID: 343 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) 
| [   23.422312][  T343] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall sch_ingress ip_gre gre vrf veth
| [   23.423892][  T343] Tainted: [W]=WARN
[   23.424122][  T343] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 23.424503][ T343] 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) 
[ 23.424825][ T343] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   23.425933][  T343] RSP: 0018:ffffc900005c6ef0 EFLAGS: 00010246
[   23.426324][  T343] RAX: 0000000000000000 RBX: ffff88800f412000 RCX: 0000000000000001
[   23.426788][  T343] RDX: 0000000000000000 RSI: ffffffff9509b941 RDI: ffffffff948555e0
[   23.427241][  T343] RBP: ffffc900005c6fe0 R08: 0000000000000000 R09: 0000000000000000
[   23.427762][  T343] R10: ffffc900005c7010 R11: ffffffff95ea8918 R12: 1ffff920000b8de2
[   23.428222][  T343] R13: 00000000000005dc R14: ffffc900005c7010 R15: ffff88800f412f08
[   23.428757][  T343] FS:  00007f1b82a76800(0000) GS:ffff888098437000(0000) knlGS:0000000000000000
[   23.429290][  T343] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.429703][  T343] CR2: 00000000004e5ab0 CR3: 0000000009969003 CR4: 0000000000772ef0
[   23.430166][  T343] PKRU: 55555554
[   23.430402][  T343] Call Trace:
[   23.430640][  T343]  <TASK>
[ 23.430798][ T343] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 23.431104][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.431421][ T343] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 23.431754][ T343] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 23.432136][ T343] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 23.432447][ T343] netif_set_mtu (net/core/dev.c:9652) 
[ 23.432758][ T343] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 23.433071][ T343] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 23.433490][ T343] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 23.433739][ T343] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 23.434150][ T343] br_add_if (net/bridge/br_if.c:697) bridge 
[ 23.434492][ T343] do_set_master (net/core/rtnetlink.c:2948) 
[ 23.434814][ T343] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 23.435122][ T343] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 23.435511][ T343] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 23.435827][ T343] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 23.436131][ T343] ? __kernel_text_address (kernel/extable.c:79) 
[ 23.436480][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.436804][ T343] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 23.437115][ T343] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 23.437492][ T343] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.437822][ T343] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.438126][ T343] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 23.438430][ T343] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 23.438741][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.439043][ T343] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 23.439343][ T343] ? __create_object (mm/kmemleak.c:771) 
[ 23.439665][ T343] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 23.439968][ T343] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 23.440271][ T343] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 23.440681][ T343] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 23.440993][ T343] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 23.441301][ T343] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.441624][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.441938][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.442244][ T343] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 23.442551][ T343] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.442858][ T343] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.443160][ T343] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 23.443463][ T343] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.443778][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.444087][ T343] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 23.444391][ T343] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.444704][ T343] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 23.445020][ T343] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 23.445321][ T343] ? 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) 
[ 23.445645][ T343] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 23.445953][ T343] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 23.446259][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.446577][ T343] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 23.446885][ T343] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 23.447190][ T343] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 23.447499][ T343] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 23.447816][ T343] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 23.448120][ T343] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 23.448513][ T343] ___sys_sendmsg (net/socket.c:2670) 
[ 23.448828][ T343] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 23.449129][ T343] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 23.449507][ T343] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 23.449844][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.450155][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.450463][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.450774][ T343] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 23.451082][ T343] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.451394][ T343] __sys_sendmsg (net/socket.c:2700) 
[ 23.451700][ T343] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 23.452079][ T343] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 23.452396][ T343] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.452709][ T343] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 23.453014][ T343] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   23.453393][  T343] RIP: 0033:0x7f1b82c431e7
[ 23.453726][ T343] 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)
[   23.454818][  T343] RSP: 002b:00007ffd3c25ce88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   23.455281][  T343] RAX: ffffffffffffffda RBX: 00007ffd3c25d5b0 RCX: 00007f1b82c431e7
[   23.455742][  T343] RDX: 0000000000000000 RSI: 00007ffd3c25cef0 RDI: 0000000000000005
[   23.456199][  T343] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   23.456662][  T343] R10: 0000000004500910 R11: 0000000000000246 R12: 0000000000000004
[   23.457114][  T343] R13: 00000000686e47a0 R14: 0000000000499600 R15: 0000000000000000
| [   25.724880][  T365] ------------[ cut here ]------------
| [ 25.725216][ T365] WARNING: CPU: 3 PID: 365 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   25.726567][  T365] Modules linked in: dummy bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall sch_ingress ip_gre gre vrf veth
| [   25.728014][  T365] Tainted: [W]=WARN
[   25.728243][  T365] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 25.728626][ T365] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 25.728939][ T365] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   25.730045][  T365] RSP: 0018:ffffc900005c7000 EFLAGS: 00010246
[   25.730427][  T365] RAX: 0000000000000000 RBX: ffff888002f29000 RCX: 0000000000000001
[   25.730884][  T365] RDX: 0000000000000000 RSI: ffffffff9509b941 RDI: ffffffff948555e0
[   25.731345][  T365] RBP: ffffc900005c70e8 R08: ffff888002f29218 R09: 0000000000000000
[   25.731806][  T365] R10: ffffc900005c7118 R11: ffff88800bd895e0 R12: 1ffff920000b8e04
[   25.732256][  T365] R13: 00000000000005b6 R14: ffffc900005c7118 R15: ffff888002f29218
[   25.732716][  T365] FS:  00007facaa382800(0000) GS:ffff888098437000(0000) knlGS:0000000000000000
[   25.733246][  T365] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.733634][  T365] CR2: 00007fa556924a00 CR3: 0000000010bcf006 CR4: 0000000000772ef0
[   25.734088][  T365] PKRU: 55555554
[   25.734316][  T365] Call Trace:
[   25.734550][  T365]  <TASK>
[ 25.734704][ T365] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 25.735088][ T365] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 25.735396][ T365] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.735715][ T365] netif_set_mtu (net/core/dev.c:9652) 
[ 25.736017][ T365] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 25.736334][ T365] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 25.736662][ T365] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 25.736891][ T365] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 25.737196][ T365] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 25.737512][ T365] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 25.737830][ T365] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 25.738206][ T365] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 25.738524][ T365] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 25.738828][ T365] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 25.739132][ T365] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 25.739435][ T365] ? __dev_get_by_name (net/core/dev.c:865) 
[ 25.739765][ T365] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 25.740068][ T365] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 25.740375][ T365] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 25.740683][ T365] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 25.740991][ T365] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 25.741304][ T365] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 25.741620][ T365] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 25.741935][ T365] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 25.742237][ T365] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 25.742549][ T365] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 25.742852][ T365] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 25.743153][ T365] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 25.743459][ T365] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.743775][ T365] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 25.744080][ T365] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 25.744393][ T365] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 25.744713][ T365] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 25.745014][ T365] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 25.745317][ T365] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 25.745629][ T365] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 25.745932][ T365] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.746238][ T365] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 25.746557][ T365] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 25.746861][ T365] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 25.747173][ T365] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 25.747478][ T365] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 25.747788][ T365] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 25.748192][ T365] ___sys_sendmsg (net/socket.c:2670) 
[ 25.748507][ T365] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 25.748837][ T365] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 25.749240][ T365] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 25.749557][ T365] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.749869][ T365] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.750180][ T365] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.750482][ T365] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 25.750792][ T365] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 25.751107][ T365] __sys_sendmsg (net/socket.c:2700) 
[ 25.751412][ T365] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 25.751790][ T365] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 25.752111][ T365] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 25.752416][ T365] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 25.752728][ T365] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   25.753107][  T365] RIP: 0033:0x7facaa54f1e7
[ 25.753420][ T365] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   25.754522][  T365] RSP: 002b:00007ffd54059ca8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   25.754981][  T365] RAX: ffffffffffffffda RBX: 00007ffd5405a3d0 RCX: 00007facaa54f1e7
[   25.755431][  T365] RDX: 0000000000000000 RSI: 00007ffd54059d10 RDI: 0000000000000005
[   25.755900][  T365] RBP: 000000000000000a R08: 00000000000000b4 R09: 0000000000000078
[   25.756353][  T365] R10: 00007facaa44cee8 R11: 0000000000000246 R12: 00007ffd5405a3f0


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