======================================
| [   20.549246][  T313] ip_gre: GRE over IPv4 tunneling driver
| [   20.610713][  T312] ------------[ cut here ]------------
| [ 20.611181][ T312] WARNING: CPU: 1 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) 
| [   20.612115][  T312] Modules linked in: ip_gre gre sch_ingress vrf veth
[   20.613265][  T312] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.613798][ 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) 
[ 20.614122][ T312] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   20.615281][  T312] RSP: 0018:ffffc90000607000 EFLAGS: 00010246
[   20.615682][  T312] RAX: 0000000000000000 RBX: ffff888007f69000 RCX: 0000000000000001
[   20.616143][  T312] RDX: 0000000000000000 RSI: ffffffffb989b939 RDI: ffffffffb90555e0
[   20.616609][  T312] RBP: ffffc900006070e8 R08: ffff888007f69218 R09: 0000000000000000
[   20.617077][  T312] R10: ffffc90000607118 R11: ffffffffb9d79160 R12: 1ffff920000c0e04
[   20.617542][  T312] R13: 00000000000005b6 R14: ffffc90000607118 R15: ffff888007f69218
[   20.618001][  T312] FS:  00007fa2ace78800(0000) GS:ffff88807a937000(0000) knlGS:0000000000000000
[   20.618557][  T312] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.618948][  T312] CR2: 00007fac054ced90 CR3: 0000000009baf005 CR4: 0000000000772ef0
[   20.619410][  T312] PKRU: 55555554
[   20.619653][  T312] Call Trace:
[   20.619889][  T312]  <TASK>
[ 20.620048][ T312] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 20.620430][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.620749][ T312] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.621060][ T312] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 20.621640][ T312] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 20.621955][ T312] netif_set_mtu (net/core/dev.c:9652) 
[ 20.622268][ T312] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.622603][ T312] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 20.622914][ T312] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.623145][ T312] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 20.623457][ T312] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 20.623784][ T312] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 20.624095][ T312] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 20.624472][ T312] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 20.624803][ T312] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 20.625360][ T312] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 20.626117][ T312] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 20.626665][ T312] ? __dev_get_by_name (net/core/dev.c:865) 
[ 20.626978][ T312] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 20.627284][ T312] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 20.627607][ T312] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.628009][ T312] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 20.628336][ T312] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 20.628677][ T312] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.629000][ T312] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.629573][ T312] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.629888][ T312] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.630199][ T312] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.630520][ T312] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.630830][ T312] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.631138][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.631458][ T312] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.631999][ T312] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.632315][ T312] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.632642][ T312] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.632948][ 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) 
[ 20.633254][ T312] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 20.633799][ T312] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.634118][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.634427][ T312] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.634971][ T312] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.635278][ T312] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.635603][ T312] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.635918][ T312] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.636238][ T312] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.636865][ T312] ___sys_sendmsg (net/socket.c:2670) 
[ 20.637171][ T312] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.637482][ T312] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 20.638148][ T312] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 20.638467][ T312] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 20.638787][ T312] ? __handle_mm_fault (mm/memory.c:6212) 
[ 20.639110][ T312] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 20.639647][ T312] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 20.639972][ T312] __sys_sendmsg (net/socket.c:2700) 
[ 20.640286][ T312] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.640600][ 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) 
[ 20.641137][ 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) 
[ 20.641463][ T312] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.641782][ T312] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.642085][ T312] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.642700][  T312] RIP: 0033:0x7fa2ad0451e7
[ 20.643032][ T312] Code: Unable to access opcode bytes at 0x7fa2ad0451bd.

Code starting with the faulting instruction
===========================================
[   20.643424][  T312] RSP: 002b:00007fffda7a7c08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.644141][  T312] RAX: ffffffffffffffda RBX: 00007fffda7a8330 RCX: 00007fa2ad0451e7
[   20.644608][  T312] RDX: 0000000000000000 RSI: 00007fffda7a7c70 RDI: 0000000000000005
[   20.645063][  T312] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[   20.645764][  T312] R10: 00007fa2acf3d6f8 R11: 0000000000000246 R12: 00007fffda7a8350
[   20.646231][  T312] R13: 00000000686e6553 R14: 0000000000499600 R15: 00007fffda7a7d5c
| [   23.470227][  T339] ------------[ cut here ]------------
| [ 23.470596][ T339] WARNING: CPU: 1 PID: 339 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) 
| [   23.471217][  T339] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall ip_gre gre sch_ingress vrf veth
| [   23.472700][  T339] Tainted: [W]=WARN
[   23.472951][  T339] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 23.473336][ T339] 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) 
[ 23.474075][ T339] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   23.475178][  T339] RSP: 0018:ffffc900005a6ef0 EFLAGS: 00010246
[   23.475602][  T339] RAX: 0000000000000000 RBX: ffff88800b81a000 RCX: 0000000000000001
[   23.476060][  T339] RDX: 0000000000000000 RSI: ffffffffb989b939 RDI: ffffffffb90555e0
[   23.476533][  T339] RBP: ffffc900005a6fe0 R08: 0000000000000000 R09: 0000000000000000
[   23.476991][  T339] R10: ffffc900005a7010 R11: ffffffffba6a8918 R12: 1ffff920000b4de2
[   23.477453][  T339] R13: 00000000000005dc R14: ffffc900005a7010 R15: ffff88800b81af08
[   23.477976][  T339] FS:  00007f28008b2800(0000) GS:ffff88807a937000(0000) knlGS:0000000000000000
[   23.478541][  T339] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.478929][  T339] CR2: 00000000004e5aa8 CR3: 000000000c643001 CR4: 0000000000772ef0
[   23.479389][  T339] PKRU: 55555554
[   23.479626][  T339] Call Trace:
[   23.479866][  T339]  <TASK>
[ 23.480027][ T339] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 23.480334][ T339] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.480667][ T339] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 23.480980][ T339] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 23.481365][ T339] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 23.481685][ T339] netif_set_mtu (net/core/dev.c:9652) 
[ 23.482289][ T339] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 23.482626][ T339] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 23.483051][ T339] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 23.483284][ T339] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 23.483702][ T339] br_add_if (net/bridge/br_if.c:697) bridge 
[ 23.484052][ T339] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 23.484365][ T339] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 23.484706][ T339] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 23.485094][ T339] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 23.485400][ T339] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 23.485712][ T339] ? __kernel_text_address (kernel/extable.c:79) 
[ 23.486027][ T339] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.486334][ T339] ? __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) 
[ 23.486652][ T339] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 23.487041][ T339] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.487345][ T339] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.487658][ T339] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 23.487967][ T339] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 23.488272][ T339] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.488614][ T339] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 23.488924][ T339] ? __create_object (mm/kmemleak.c:771) 
[ 23.489235][ T339] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 23.489554][ T339] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 23.489862][ T339] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 23.490245][ T339] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 23.490573][ T339] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 23.490892][ T339] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.491198][ T339] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.491520][ T339] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.491836][ T339] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 23.492138][ T339] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.492446][ T339] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.492771][ T339] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 23.493082][ T339] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.493393][ T339] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.493714][ T339] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 23.494021][ T339] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.494331][ T339] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 23.494658][ T339] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 23.494965][ T339] ? 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) 
[ 23.495270][ T339] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 23.495589][ T339] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 23.495897][ T339] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.496206][ T339] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 23.496538][ T339] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 23.496846][ T339] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 23.497159][ T339] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 23.497467][ T339] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 23.497776][ T339] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 23.498172][ T339] ___sys_sendmsg (net/socket.c:2670) 
[ 23.498482][ T339] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 23.498803][ T339] ? __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) 
[ 23.499185][ T339] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 23.499491][ T339] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.499807][ T339] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.500120][ T339] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.500423][ T339] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 23.500746][ T339] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.501073][ T339] __sys_sendmsg (net/socket.c:2700) 
[ 23.501376][ T339] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 23.501762][ T339] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 23.502084][ T339] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.502391][ T339] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 23.502707][ T339] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   23.503083][  T339] RIP: 0033:0x7f2800a7f1e7
[ 23.503403][ T339] 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)
[   23.504497][  T339] RSP: 002b:00007ffcc3d14308 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   23.504979][  T339] RAX: ffffffffffffffda RBX: 00007ffcc3d14a30 RCX: 00007f2800a7f1e7
[   23.505441][  T339] RDX: 0000000000000000 RSI: 00007ffcc3d14370 RDI: 0000000000000005
[   23.505906][  T339] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   23.506360][  T339] R10: 00000000220e8910 R11: 0000000000000246 R12: 0000000000000004
[   23.506822][  T339] R13: 00000000686e6556 R14: 0000000000499600 R15: 0000000000000000
| [   23.754009][  T341] ------------[ cut here ]------------
| [ 23.754330][ T341] WARNING: CPU: 0 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) 
| [   23.754981][  T341] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall ip_gre gre sch_ingress vrf veth
| [   23.756975][  T341] Tainted: [W]=WARN
[   23.757205][  T341] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 23.757618][ 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) 
[ 23.757963][ T341] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   23.759093][  T341] RSP: 0018:ffffc90000586ef0 EFLAGS: 00010246
[   23.759487][  T341] RAX: 0000000000000000 RBX: ffff88800b81a000 RCX: 0000000000000001
[   23.760033][  T341] RDX: 0000000000000000 RSI: ffffffffb989b939 RDI: ffffffffb90555e0
[   23.760500][  T341] RBP: ffffc90000586fe0 R08: 0000000000000000 R09: 0000000000000000
[   23.761042][  T341] R10: ffffc90000587010 R11: ffffffffba6a8918 R12: 1ffff920000b0de2
[   23.761533][  T341] R13: 00000000000005dc R14: ffffc90000587010 R15: ffff88800b81af08
[   23.762012][  T341] FS:  00007fd4e8ce7800(0000) GS:ffff88807a8b7000(0000) knlGS:0000000000000000
[   23.762602][  T341] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.762996][  T341] CR2: 00000000004e5ab0 CR3: 000000000d5ba006 CR4: 0000000000772ef0
[   23.763461][  T341] PKRU: 55555554
[   23.763713][  T341] Call Trace:
[   23.763942][  T341]  <TASK>
[ 23.764100][ T341] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 23.764416][ T341] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.764776][ T341] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 23.765084][ T341] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 23.765469][ T341] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 23.765799][ T341] netif_set_mtu (net/core/dev.c:9652) 
[ 23.766105][ T341] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 23.766421][ T341] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 23.766881][ T341] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 23.767124][ T341] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 23.767547][ T341] br_add_if (net/bridge/br_if.c:697) bridge 
[ 23.767903][ T341] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 23.768216][ T341] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 23.768561][ T341] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 23.768984][ T341] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 23.769291][ T341] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 23.769633][ T341] ? __kernel_text_address (kernel/extable.c:79) 
[ 23.769968][ T341] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.770276][ 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) 
[ 23.770607][ T341] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 23.770989][ T341] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.771303][ T341] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.771616][ T341] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 23.771924][ T341] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 23.772229][ T341] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.772543][ T341] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 23.772950][ T341] ? __create_object (mm/kmemleak.c:771) 
[ 23.773264][ T341] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 23.773612][ T341] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 23.773965][ T341] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 23.774346][ T341] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 23.774696][ T341] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 23.775013][ T341] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.775320][ T341] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.775667][ T341] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.775976][ T341] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 23.776277][ T341] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.776626][ T341] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.777013][ T341] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 23.777322][ T341] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.777741][ T341] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.778125][ T341] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 23.778470][ T341] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.778814][ T341] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 23.779195][ T341] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 23.779504][ 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) 
[ 23.779897][ T341] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 23.780270][ T341] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 23.780670][ T341] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.780983][ T341] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 23.781340][ T341] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 23.781677][ T341] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 23.781992][ T341] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 23.782363][ T341] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 23.782763][ T341] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 23.783158][ T341] ___sys_sendmsg (net/socket.c:2670) 
[ 23.783468][ T341] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 23.783824][ 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) 
[ 23.784212][ T341] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 23.784532][ T341] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.784854][ T341] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.785170][ T341] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.785476][ 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) 
[ 23.785806][ T341] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.786119][ T341] __sys_sendmsg (net/socket.c:2700) 
[ 23.786418][ T341] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 23.786836][ T341] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 23.787156][ T341] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.787461][ T341] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 23.787809][ T341] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   23.788251][  T341] RIP: 0033:0x7fd4e8eb41e7
[ 23.788637][ 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)
[   23.789820][  T341] RSP: 002b:00007ffe1f1f5b78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   23.790288][  T341] RAX: ffffffffffffffda RBX: 00007ffe1f1f62a0 RCX: 00007fd4e8eb41e7
[   23.790800][  T341] RDX: 0000000000000000 RSI: 00007ffe1f1f5be0 RDI: 0000000000000005
[   23.791273][  T341] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   23.791952][  T341] R10: 0000000038fa7910 R11: 0000000000000246 R12: 0000000000000004
[   23.792421][  T341] R13: 00000000686e6556 R14: 0000000000499600 R15: 0000000000000000
| [   24.210131][  T344] ------------[ cut here ]------------
| [ 24.210493][ T344] WARNING: CPU: 1 PID: 344 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) 
| [   24.211116][  T344] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall ip_gre gre sch_ingress vrf veth
| [   24.212448][  T344] Tainted: [W]=WARN
[   24.212692][  T344] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 24.213074][ T344] 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) 
[ 24.213388][ T344] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   24.214587][  T344] RSP: 0018:ffffc90000647000 EFLAGS: 00010246
[   24.214979][  T344] RAX: 0000000000000000 RBX: ffff8880077d9000 RCX: 0000000000000001
[   24.215436][  T344] RDX: 0000000000000000 RSI: ffffffffb989b939 RDI: ffffffffb90555e0
[   24.216054][  T344] RBP: ffffc900006470e8 R08: ffff8880077d9218 R09: 0000000000000000
[   24.216660][  T344] R10: ffffc90000647118 R11: ffffffffb9d79160 R12: 1ffff920000c8e04
[   24.217131][  T344] R13: 00000000000005b6 R14: ffffc90000647118 R15: ffff8880077d9218
[   24.217733][  T344] FS:  00007f4b338b9800(0000) GS:ffff88807a937000(0000) knlGS:0000000000000000
[   24.218266][  T344] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.218821][  T344] CR2: 0000000000436890 CR3: 000000000d525004 CR4: 0000000000772ef0
[   24.219294][  T344] PKRU: 55555554
[   24.219689][  T344] Call Trace:
[   24.219919][  T344]  <TASK>
[ 24.220077][ T344] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 24.220461][ T344] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.220996][ T344] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 24.221313][ T344] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 24.221769][ T344] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 24.222094][ T344] netif_set_mtu (net/core/dev.c:9652) 
[ 24.222398][ T344] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 24.222875][ T344] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 24.223184][ T344] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 24.223415][ T344] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 24.223880][ T344] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 24.224197][ T344] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 24.224659][ T344] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 24.225055][ T344] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 24.225369][ T344] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 24.225827][ T344] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 24.226140][ T344] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 24.226439][ T344] ? __dev_get_by_name (net/core/dev.c:865) 
[ 24.226888][ T344] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 24.227198][ T344] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 24.227531][ T344] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 24.227837][ T344] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 24.228151][ T344] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 24.228476][ T344] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 24.228796][ T344] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.229113][ T344] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 24.229419][ T344] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.229747][ T344] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.230052][ T344] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 24.230357][ T344] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.230686][ T344] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.230996][ T344] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 24.231303][ T344] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.231624][ T344] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 24.231941][ T344] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 24.232257][ T344] ? 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) 
[ 24.232573][ T344] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 24.232882][ T344] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 24.233186][ T344] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.233503][ T344] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 24.233825][ T344] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 24.234130][ T344] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 24.234453][ T344] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 24.234784][ T344] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 24.235088][ T344] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 24.235477][ T344] ___sys_sendmsg (net/socket.c:2670) 
[ 24.235792][ T344] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 24.236092][ T344] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 24.236401][ T344] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 24.236720][ T344] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 24.237035][ T344] ? __handle_mm_fault (mm/memory.c:6212) 
[ 24.237343][ T344] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 24.237654][ T344] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 24.237978][ T344] __sys_sendmsg (net/socket.c:2700) 
[ 24.238292][ T344] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 24.238629][ T344] ? 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) 
[ 24.238945][ T344] ? 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) 
[ 24.239255][ T344] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.239573][ T344] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 24.239879][ T344] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   24.240259][  T344] RIP: 0033:0x7f4b33a861e7
[ 24.240585][ T344] 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)
[   24.241692][  T344] RSP: 002b:00007ffd09434888 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   24.242156][  T344] RAX: ffffffffffffffda RBX: 00007ffd09434fb0 RCX: 00007f4b33a861e7
[   24.242639][  T344] RDX: 0000000000000000 RSI: 00007ffd094348f0 RDI: 0000000000000005
[   24.243112][  T344] RBP: 0000000000000008 R08: 00000000000000ac R09: 0000000000000000
[   24.243580][  T344] R10: 00007f4b3397e6f8 R11: 0000000000000246 R12: 00007ffd09434fd0


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