======================================
| [   20.648734][  T313] ip_gre: GRE over IPv4 tunneling driver
| [   20.725094][  T312] ------------[ cut here ]------------
| [ 20.725613][ T312] WARNING: CPU: 2 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) 
| [   20.726288][  T312] Modules linked in: ip_gre gre vrf veth
[   20.727319][  T312] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.727757][ 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) 
[ 20.728116][ 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
[   20.729313][  T312] RSP: 0018:ffffc90000567000 EFLAGS: 00010246
[   20.729753][  T312] RAX: 0000000000000000 RBX: ffff888004f49000 RCX: 0000000000000001
[   20.730263][  T312] RDX: 0000000000000000 RSI: ffffffffbac9b941 RDI: ffffffffba4555e0
[   20.730983][  T312] RBP: ffffc900005670e8 R08: ffff888004f49218 R09: 0000000000000000
[   20.731494][  T312] R10: ffffc90000567118 R11: ffffffffbb179160 R12: 1ffff920000ace04
[   20.732011][  T312] R13: 00000000000005b6 R14: ffffc90000567118 R15: ffff888004f49218
[   20.732523][  T312] FS:  00007fdf1ebb4800(0000) GS:ffff8880795b7000(0000) knlGS:0000000000000000
[   20.733151][  T312] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.733578][  T312] CR2: 00007fba51d6fa50 CR3: 0000000004b9a002 CR4: 0000000000772ef0
[   20.734096][  T312] PKRU: 55555554
[   20.734361][  T312] Call Trace:
[   20.734623][  T312]  <TASK>
[ 20.734819][ T312] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 20.735251][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.735593][ T312] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.735958][ T312] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 20.736308][ T312] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 20.736671][ T312] netif_set_mtu (net/core/dev.c:9652) 
[ 20.737033][ T312] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.737388][ T312] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 20.739093][ T312] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.739362][ T312] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 20.739707][ T312] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 20.740069][ T312] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 20.740417][ T312] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 20.740854][ T312] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 20.741215][ T312] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 20.741572][ T312] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 20.742668][ T312] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 20.743020][ T312] ? __dev_get_by_name (net/core/dev.c:865) 
[ 20.743365][ T312] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 20.743714][ T312] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 20.744066][ T312] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.744406][ T312] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 20.744762][ T312] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 20.745126][ T312] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.745472][ T312] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.745832][ T312] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.746174][ T312] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.746539][ T312] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.746885][ T312] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.747227][ T312] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.747569][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.747931][ T312] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.748278][ T312] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.748617][ T312] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.748974][ T312] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.749310][ 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) 
[ 20.749659][ T312] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 20.750009][ T312] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.750348][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.750688][ T312] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.751058][ T312] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.751402][ T312] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.751767][ T312] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.753012][ T312] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.753354][ T312] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.753800][ T312] ? debug_object_activate (lib/debugobjects.c:837) 
[ 20.754143][ T312] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.755169][ T312] ___sys_sendmsg (net/socket.c:2670) 
[ 20.755512][ T312] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.755874][ T312] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 20.756216][ T312] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 20.756578][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.756938][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.757284][ T312] ? clockevents_program_event (kernel/time/clockevents.c:326) 
[ 20.757627][ T312] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.757985][ T312] __sys_sendmsg (net/socket.c:2700) 
[ 20.758550][ T312] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.758902][ T312] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3)) 
[ 20.759338][ T312] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.759683][ T312] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.760045][ T312] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.760467][  T312] RIP: 0033:0x7fdf1ed811e7
[ 20.760836][ T312] Code: Unable to access opcode bytes at 0x7fdf1ed811bd.

Code starting with the faulting instruction
===========================================
[   20.761275][  T312] RSP: 002b:00007ffdef02ad88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.762530][  T312] RAX: ffffffffffffffda RBX: 00007ffdef02b4b0 RCX: 00007fdf1ed811e7
[   20.763054][  T312] RDX: 0000000000000000 RSI: 00007ffdef02adf0 RDI: 0000000000000005
[   20.763563][  T312] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[   20.764090][  T312] R10: 00007fdf1ec796f8 R11: 0000000000000246 R12: 00007ffdef02b4d0
[   20.764605][  T312] R13: 00000000686e1e11 R14: 0000000000499600 R15: 00007ffdef02aedc
| [   23.709980][  T341] ------------[ cut here ]------------
| [ 23.710299][ T341] WARNING: CPU: 3 PID: 341 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) 
| [   23.710925][  T341] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall sch_ingress ip_gre gre vrf veth
| [   23.713606][  T341] Tainted: [W]=WARN
[   23.713859][  T341] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 23.714251][ T341] 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) 
[ 23.714589][ T341] 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
[   23.715715][  T341] RSP: 0018:ffffc90000606ef0 EFLAGS: 00010246
[   23.716118][  T341] RAX: 0000000000000000 RBX: ffff8880106e2000 RCX: 0000000000000001
[   23.716598][  T341] RDX: 0000000000000000 RSI: ffffffffbac9b941 RDI: ffffffffba4555e0
[   23.717070][  T341] RBP: ffffc90000606fe0 R08: 0000000000000000 R09: 0000000000000000
[   23.717540][  T341] R10: ffffc90000607010 R11: ffffffffbbaa8918 R12: 1ffff920000c0de2
[   23.718011][  T341] R13: 00000000000005dc R14: ffffc90000607010 R15: ffff8880106e2f08
[   23.718761][  T341] FS:  00007f6273e6f800(0000) GS:ffff888079637000(0000) knlGS:0000000000000000
[   23.719309][  T341] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.719719][  T341] CR2: 00000000004e5aa8 CR3: 000000000e345002 CR4: 0000000000772ef0
[   23.720219][  T341] PKRU: 55555554
[   23.720470][  T341] Call Trace:
[   23.720718][  T341]  <TASK>
[ 23.720901][ T341] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 23.721230][ T341] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.721560][ T341] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 23.721894][ T341] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 23.722317][ T341] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 23.722644][ T341] netif_set_mtu (net/core/dev.c:9652) 
[ 23.722973][ T341] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 23.723294][ T341] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 23.723731][ T341] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 23.723981][ T341] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 23.724413][ T341] br_add_if (net/bridge/br_if.c:697) bridge 
[ 23.724781][ T341] do_set_master (net/core/rtnetlink.c:2948) 
[ 23.725096][ T341] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 23.725410][ T341] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 23.725812][ T341] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 23.726124][ T341] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 23.726432][ T341] ? __kernel_text_address (kernel/extable.c:79) 
[ 23.726768][ T341] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.727098][ T341] ? __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) 
[ 23.727410][ T341] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 23.727821][ T341] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.728134][ T341] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.728445][ T341] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 23.728762][ T341] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 23.729089][ T341] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.729417][ T341] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 23.729752][ T341] ? __create_object (mm/kmemleak.c:771) 
[ 23.730069][ T341] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 23.730394][ T341] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 23.730702][ T341] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 23.731094][ T341] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 23.731410][ T341] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 23.731728][ T341] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.732048][ T341] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.732362][ T341] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.732671][ T341] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 23.732987][ T341] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.733304][ T341] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.733610][ T341] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 23.733929][ T341] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.734244][ T341] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.734564][ T341] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 23.734893][ T341] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.735203][ T341] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 23.735522][ T341] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 23.735838][ T341] ? 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) 
[ 23.736160][ T341] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 23.736508][ T341] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 23.736830][ T341] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.737145][ T341] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 23.737471][ T341] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 23.737804][ T341] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 23.738126][ T341] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 23.738442][ T341] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 23.738769][ T341] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 23.739173][ T341] ___sys_sendmsg (net/socket.c:2670) 
[ 23.739479][ T341] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 23.739802][ T341] ? __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) 
[ 23.740187][ T341] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 23.740498][ T341] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.740823][ T341] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.741142][ T341] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.741462][ T341] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 23.741784][ T341] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.742101][ T341] __sys_sendmsg (net/socket.c:2700) 
[ 23.742405][ T341] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 23.742808][ T341] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 23.743129][ T341] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.743445][ T341] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 23.743766][ T341] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   23.744150][  T341] RIP: 0033:0x7f627403c1e7
[ 23.744484][ T341] 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)
[   23.745627][  T341] RSP: 002b:00007fff02030e48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   23.746123][  T341] RAX: ffffffffffffffda RBX: 00007fff02031570 RCX: 00007f627403c1e7
[   23.746621][  T341] RDX: 0000000000000000 RSI: 00007fff02030eb0 RDI: 0000000000000005
[   23.747114][  T341] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   23.747576][  T341] R10: 000000001b0b2910 R11: 0000000000000246 R12: 0000000000000004
[   23.748051][  T341] R13: 00000000686e1e14 R14: 0000000000499600 R15: 0000000000000000
| [   23.987520][  T343] ------------[ cut here ]------------
| [ 23.987908][ T343] WARNING: CPU: 0 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) 
| [   23.988572][  T343] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall sch_ingress ip_gre gre vrf veth
| [   23.990161][  T343] Tainted: [W]=WARN
[   23.990406][  T343] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 23.990836][ 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) 
[ 23.991190][ 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
[   23.992381][  T343] RSP: 0018:ffffc90000626ef0 EFLAGS: 00010246
[   23.992824][  T343] RAX: 0000000000000000 RBX: ffff8880106e2000 RCX: 0000000000000001
[   23.993351][  T343] RDX: 0000000000000000 RSI: ffffffffbac9b941 RDI: ffffffffba4555e0
[   23.993902][  T343] RBP: ffffc90000626fe0 R08: 0000000000000000 R09: 0000000000000000
[   23.994414][  T343] R10: ffffc90000627010 R11: ffffffffbbaa8918 R12: 1ffff920000c4de2
[   23.994922][  T343] R13: 00000000000005dc R14: ffffc90000627010 R15: ffff8880106e2f08
[   23.995410][  T343] FS:  00007f77fdf01800(0000) GS:ffff8880794b7000(0000) knlGS:0000000000000000
[   23.995995][  T343] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.996419][  T343] CR2: 00007ff97fce3000 CR3: 000000000a6e9003 CR4: 0000000000772ef0
[   23.996953][  T343] PKRU: 55555554
[   23.997226][  T343] Call Trace:
[   23.997481][  T343]  <TASK>
[ 23.997672][ T343] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 23.998023][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.998390][ T343] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 23.998726][ T343] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 23.999182][ T343] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 23.999508][ T343] netif_set_mtu (net/core/dev.c:9652) 
[ 23.999857][ T343] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 24.000192][ T343] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 24.000666][ T343] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 24.000925][ T343] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 24.001374][ T343] br_add_if (net/bridge/br_if.c:697) bridge 
[ 24.001771][ T343] do_set_master (net/core/rtnetlink.c:2948) 
[ 24.002112][ T343] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 24.002450][ T343] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 24.002877][ T343] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 24.003213][ T343] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 24.003532][ T343] ? __kernel_text_address (kernel/extable.c:79) 
[ 24.003894][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.004220][ 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) 
[ 24.004543][ T343] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 24.004949][ T343] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.005274][ T343] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.005592][ T343] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 24.005923][ T343] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 24.006266][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.006627][ T343] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 24.006969][ T343] ? __create_object (mm/kmemleak.c:771) 
[ 24.007295][ T343] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 24.007629][ T343] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 24.007984][ T343] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 24.008406][ T343] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 24.008733][ T343] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 24.009089][ T343] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.009410][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.009752][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.010093][ T343] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 24.010411][ T343] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.010753][ T343] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.011102][ T343] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 24.011444][ T343] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.011787][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.012155][ T343] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 24.012512][ T343] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.012859][ T343] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 24.013220][ T343] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 24.013546][ 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) 
[ 24.013909][ T343] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 24.014253][ T343] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 24.014578][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.014914][ T343] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 24.015240][ T343] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 24.015562][ T343] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 24.015923][ T343] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 24.016268][ T343] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 24.016625][ T343] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 24.017057][ T343] ___sys_sendmsg (net/socket.c:2670) 
[ 24.017387][ T343] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 24.017721][ 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) 
[ 24.018149][ T343] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 24.018500][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.018846][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.019199][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.019521][ 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) 
[ 24.019881][ T343] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.020211][ T343] __sys_sendmsg (net/socket.c:2700) 
[ 24.020541][ T343] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 24.020960][ T343] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 24.021320][ T343] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.021665][ T343] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 24.022020][ T343] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   24.022432][  T343] RIP: 0033:0x7f77fe0ce1e7
[ 24.022787][ 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)
[   24.023946][  T343] RSP: 002b:00007fffc5207b68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   24.024457][  T343] RAX: ffffffffffffffda RBX: 00007fffc5208290 RCX: 00007f77fe0ce1e7
[   24.024961][  T343] RDX: 0000000000000000 RSI: 00007fffc5207bd0 RDI: 0000000000000005
[   24.025470][  T343] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   24.025979][  T343] R10: 000000002dff4910 R11: 0000000000000246 R12: 0000000000000004
[   24.026527][  T343] R13: 00000000686e1e14 R14: 0000000000499600 R15: 0000000000000000
| [   26.394091][  T365] ------------[ cut here ]------------
| [ 26.394560][ T365] WARNING: CPU: 2 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) 
| [   26.395401][  T365] Modules linked in: dummy bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall sch_ingress ip_gre gre vrf veth
| [   26.396893][  T365] Tainted: [W]=WARN
[   26.397147][  T365] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 26.397548][ 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) 
[ 26.397905][ 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
[   26.399015][  T365] RSP: 0018:ffffc90000b67000 EFLAGS: 00010246
[   26.399411][  T365] RAX: 0000000000000000 RBX: ffff888008bac000 RCX: 0000000000000001
[   26.399903][  T365] RDX: 0000000000000000 RSI: ffffffffbac9b941 RDI: ffffffffba4555e0
[   26.400423][  T365] RBP: ffffc90000b670e8 R08: ffff888008bac218 R09: 0000000000000000
[   26.400904][  T365] R10: ffffc90000b67118 R11: ffff88800b4a95e0 R12: 1ffff9200016ce04
[   26.401374][  T365] R13: 00000000000005b6 R14: ffffc90000b67118 R15: ffff888008bac218
[   26.401882][  T365] FS:  00007f97b3938800(0000) GS:ffff8880795b7000(0000) knlGS:0000000000000000
[   26.402437][  T365] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.402846][  T365] CR2: 00000000004e6170 CR3: 000000000e28a002 CR4: 0000000000772ef0
[   26.403318][  T365] PKRU: 55555554
[   26.403563][  T365] Call Trace:
[   26.403818][  T365]  <TASK>
[ 26.403994][ T365] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 26.404399][ T365] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 26.404721][ T365] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.405209][ T365] netif_set_mtu (net/core/dev.c:9652) 
[ 26.405627][ T365] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 26.405976][ T365] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 26.406295][ T365] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 26.406562][ T365] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 26.406896][ T365] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 26.407244][ T365] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 26.407570][ T365] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 26.407977][ T365] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 26.408306][ T365] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 26.408629][ T365] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 26.408967][ T365] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 26.409296][ T365] ? __dev_get_by_name (net/core/dev.c:865) 
[ 26.409623][ T365] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 26.409963][ T365] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 26.410286][ T365] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 26.410606][ T365] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 26.410950][ T365] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 26.411282][ T365] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 26.411613][ T365] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 26.411954][ T365] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 26.412295][ T365] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.412622][ T365] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 26.412954][ T365] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 26.413277][ T365] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 26.413601][ T365] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.413947][ T365] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 26.414269][ T365] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 26.414594][ T365] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 26.414938][ T365] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 26.415260][ 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) 
[ 26.415579][ T365] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 26.415915][ T365] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 26.416241][ T365] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.416584][ T365] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 26.416931][ T365] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 26.417254][ T365] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 26.417584][ T365] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 26.417925][ T365] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 26.418245][ T365] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 26.418659][ T365] ___sys_sendmsg (net/socket.c:2670) 
[ 26.418999][ T365] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 26.419324][ 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) 
[ 26.419721][ T365] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 26.420061][ T365] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.420387][ T365] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.420715][ T365] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.421073][ 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) 
[ 26.421399][ T365] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.421729][ T365] __sys_sendmsg (net/socket.c:2700) 
[ 26.422063][ T365] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 26.422456][ T365] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 26.422800][ T365] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.423126][ T365] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 26.423450][ T365] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   26.423864][  T365] RIP: 0033:0x7f97b3b051e7
[ 26.424195][ 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)
[   26.425311][  T365] RSP: 002b:00007ffca3a4e118 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   26.425804][  T365] RAX: ffffffffffffffda RBX: 00007ffca3a4e840 RCX: 00007f97b3b051e7
[   26.426275][  T365] RDX: 0000000000000000 RSI: 00007ffca3a4e180 RDI: 0000000000000005
[   26.426772][  T365] RBP: 000000000000000a R08: 00000000000000b4 R09: 0000000000000078
[   26.427253][  T365] R10: 00007f97b3a02ee8 R11: 0000000000000246 R12: 00007ffca3a4e860


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