======================================
| [   20.283020][  T314] ip_gre: GRE over IPv4 tunneling driver
| [   20.347364][  T313] ------------[ cut here ]------------
| [ 20.347917][ T313] WARNING: CPU: 2 PID: 313 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) 
| [   20.348619][  T313] Modules linked in: ip_gre gre vrf veth
[   20.349690][  T313] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.350170][ T313] 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) 
[ 20.350589][ T313] 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
[   20.351803][  T313] RSP: 0018:ffffc90000ac7000 EFLAGS: 00010246
[   20.352265][  T313] RAX: 0000000000000000 RBX: ffff888009619000 RCX: 0000000000000001
[   20.352788][  T313] RDX: 0000000000000000 RSI: ffffffffaac9b941 RDI: ffffffffaa4555e0
[   20.353576][  T313] RBP: ffffc90000ac70e8 R08: ffff888009619218 R09: 0000000000000000
[   20.354083][  T313] R10: ffffc90000ac7118 R11: ffffffffab179160 R12: 1ffff92000158e04
[   20.354611][  T313] R13: 00000000000005b6 R14: ffffc90000ac7118 R15: ffff888009619218
[   20.355127][  T313] FS:  00007fbc3f350800(0000) GS:ffff8880895b7000(0000) knlGS:0000000000000000
[   20.355769][  T313] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.356211][  T313] CR2: 00007fbc3f450130 CR3: 000000000e098001 CR4: 0000000000772ef0
[   20.356735][  T313] PKRU: 55555554
[   20.357017][  T313] Call Trace:
[   20.357285][  T313]  <TASK>
[ 20.357484][ T313] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 20.357934][ T313] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.358294][ T313] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.358669][ T313] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 20.359033][ T313] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 20.359416][ T313] netif_set_mtu (net/core/dev.c:9652) 
[ 20.359773][ T313] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.360155][ T313] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 20.360749][ T313] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.361020][ T313] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 20.361380][ T313] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 20.361735][ T313] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 20.362085][ T313] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 20.369748][ T313] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 20.370100][ T313] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 20.370471][ T313] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 20.370822][ T313] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 20.371168][ T313] ? __dev_get_by_name (net/core/dev.c:865) 
[ 20.371533][ T313] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 20.371919][ T313] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 20.372277][ T313] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.372644][ T313] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 20.373026][ T313] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 20.373407][ T313] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.373764][ T313] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.374123][ T313] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.374481][ T313] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.374847][ T313] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.375201][ T313] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.375851][ T313] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.376204][ T313] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.376797][ T313] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.377386][ T313] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.377730][ T313] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.378123][ T313] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.378509][ T313] ? 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) 
[ 20.378864][ T313] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 20.379214][ T313] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.379577][ T313] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.379947][ T313] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.380539][ T313] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.380889][ T313] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.381260][ T313] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.381860][ T313] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.382213][ T313] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.382655][ T313] ___sys_sendmsg (net/socket.c:2670) 
[ 20.383165][ T313] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.383515][ T313] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 20.383852][ T313] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 20.384189][ T313] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 20.384562][ T313] ? __handle_mm_fault (mm/memory.c:6212) 
[ 20.385160][ T313] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 20.385990][ T313] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 20.386594][ T313] __sys_sendmsg (net/socket.c:2700) 
[ 20.386943][ T313] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.387285][ T313] ? 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) 
[ 20.387647][ T313] ? 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) 
[ 20.387990][ T313] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.388337][ T313] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.388918][ T313] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.389358][  T313] RIP: 0033:0x7fbc3f51d1e7
[ 20.389736][ T313] Code: Unable to access opcode bytes at 0x7fbc3f51d1bd.

Code starting with the faulting instruction
===========================================
[   20.390186][  T313] RSP: 002b:00007ffc599a6e88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.390719][  T313] RAX: ffffffffffffffda RBX: 00007ffc599a75b0 RCX: 00007fbc3f51d1e7
[   20.391247][  T313] RDX: 0000000000000000 RSI: 00007ffc599a6ef0 RDI: 0000000000000005
[   20.392237][  T313] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[   20.393232][  T313] R10: 00007fbc3f4156f8 R11: 0000000000000246 R12: 00007ffc599a75d0
[   20.393769][  T313] R13: 00000000686e128f R14: 0000000000499600 R15: 00007ffc599a6fdc
| [   23.222907][  T341] ------------[ cut here ]------------
| [ 23.223245][ 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) 
| [   23.224072][  T341] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall sch_ingress ip_gre gre vrf veth
| [   23.226242][  T341] Tainted: [W]=WARN
[   23.226535][  T341] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 23.226937][ 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) 
[ 23.227259][ 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
[   23.228418][  T341] RSP: 0018:ffffc900004d6ef0 EFLAGS: 00010246
[   23.228815][  T341] RAX: 0000000000000000 RBX: ffff888009422000 RCX: 0000000000000001
[   23.229277][  T341] RDX: 0000000000000000 RSI: ffffffffaac9b941 RDI: ffffffffaa4555e0
[   23.229808][  T341] RBP: ffffc900004d6fe0 R08: 0000000000000000 R09: 0000000000000000
[   23.230273][  T341] R10: ffffc900004d7010 R11: ffffffffabaa8918 R12: 1ffff9200009ade2
[   23.230746][  T341] R13: 00000000000005dc R14: ffffc900004d7010 R15: ffff888009422f08
[   23.231208][  T341] FS:  00007fbec4762800(0000) GS:ffff888089637000(0000) knlGS:0000000000000000
[   23.231753][  T341] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.232138][  T341] CR2: 00000000004e5aa8 CR3: 00000000050d1002 CR4: 0000000000772ef0
[   23.232631][  T341] PKRU: 55555554
[   23.232863][  T341] Call Trace:
[   23.233093][  T341]  <TASK>
[ 23.233254][ T341] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 23.233575][ T341] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.233891][ T341] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 23.234218][ T341] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 23.234610][ T341] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 23.234944][ T341] netif_set_mtu (net/core/dev.c:9652) 
[ 23.235253][ T341] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 23.235612][ T341] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 23.236046][ T341] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 23.236278][ T341] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 23.236745][ T341] br_add_if (net/bridge/br_if.c:697) bridge 
[ 23.237108][ T341] do_set_master (net/core/rtnetlink.c:2948) 
[ 23.237432][ T341] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 23.237748][ T341] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 23.238283][ T341] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 23.238623][ T341] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 23.238931][ T341] ? __kernel_text_address (kernel/extable.c:79) 
[ 23.239256][ T341] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.239582][ 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) 
[ 23.239916][ T341] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 23.240308][ T341] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.240654][ T341] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.240962][ T341] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 23.241267][ T341] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 23.241586][ T341] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.241893][ T341] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 23.242205][ T341] ? __create_object (mm/kmemleak.c:771) 
[ 23.242524][ T341] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 23.242833][ T341] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 23.243142][ T341] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 23.243532][ T341] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 23.243847][ T341] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 23.244159][ T341] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.244515][ T341] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.244829][ T341] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.245137][ T341] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 23.245450][ T341] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.245780][ T341] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.246086][ T341] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 23.246405][ T341] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.246714][ T341] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.247033][ T341] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 23.247342][ T341] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.247663][ T341] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 23.247982][ T341] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 23.248296][ 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) 
[ 23.248627][ T341] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 23.248940][ T341] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 23.249277][ T341] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.249603][ T341] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 23.249914][ T341] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 23.250223][ T341] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 23.250546][ T341] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 23.250859][ T341] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 23.251163][ T341] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 23.251569][ T341] ___sys_sendmsg (net/socket.c:2670) 
[ 23.251877][ T341] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 23.252184][ 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) 
[ 23.252593][ T341] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 23.252910][ T341] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.253219][ T341] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.253543][ T341] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.253877][ 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) 
[ 23.254182][ T341] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.254513][ T341] __sys_sendmsg (net/socket.c:2700) 
[ 23.254820][ T341] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 23.255205][ T341] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 23.255552][ T341] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.255869][ T341] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 23.256183][ T341] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   23.256588][  T341] RIP: 0033:0x7fbec492f1e7
[ 23.256942][ 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)
[   23.258059][  T341] RSP: 002b:00007fffdfe82b28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   23.258565][  T341] RAX: ffffffffffffffda RBX: 00007fffdfe83250 RCX: 00007fbec492f1e7
[   23.259028][  T341] RDX: 0000000000000000 RSI: 00007fffdfe82b90 RDI: 0000000000000005
[   23.259506][  T341] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   23.259970][  T341] R10: 000000000719b910 R11: 0000000000000246 R12: 0000000000000004
[   23.260465][  T341] R13: 00000000686e1292 R14: 0000000000499600 R15: 0000000000000000
| [   23.550865][  T343] ------------[ cut here ]------------
| [ 23.551213][ T343] WARNING: CPU: 2 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) 
| [   23.551881][  T343] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall sch_ingress ip_gre gre vrf veth
| [   23.554248][  T343] Tainted: [W]=WARN
[   23.554552][  T343] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 23.554956][ 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) 
[ 23.555290][ 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
[   23.556442][  T343] RSP: 0018:ffffc900005f6ef0 EFLAGS: 00010246
[   23.556852][  T343] RAX: 0000000000000000 RBX: ffff888009422000 RCX: 0000000000000001
[   23.557327][  T343] RDX: 0000000000000000 RSI: ffffffffaac9b941 RDI: ffffffffaa4555e0
[   23.557816][  T343] RBP: ffffc900005f6fe0 R08: 0000000000000000 R09: 0000000000000000
[   23.558351][  T343] R10: ffffc900005f7010 R11: ffffffffabaa8918 R12: 1ffff920000bede2
[   23.558844][  T343] R13: 00000000000005dc R14: ffffc900005f7010 R15: ffff888009422f08
[   23.559321][  T343] FS:  00007f9a0bce5800(0000) GS:ffff8880895b7000(0000) knlGS:0000000000000000
[   23.559900][  T343] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.560348][  T343] CR2: 00000000004e5ab0 CR3: 000000000b4e6003 CR4: 0000000000772ef0
[   23.560850][  T343] PKRU: 55555554
[   23.561097][  T343] Call Trace:
[   23.561342][  T343]  <TASK>
[ 23.561526][ T343] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 23.561883][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.562214][ T343] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 23.562546][ T343] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 23.563070][ T343] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 23.563410][ T343] netif_set_mtu (net/core/dev.c:9652) 
[ 23.563733][ T343] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 23.564091][ T343] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 23.564558][ T343] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 23.564807][ T343] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 23.565245][ T343] br_add_if (net/bridge/br_if.c:697) bridge 
[ 23.565639][ T343] do_set_master (net/core/rtnetlink.c:2948) 
[ 23.565992][ T343] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 23.566318][ T343] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 23.566785][ T343] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 23.567135][ T343] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 23.567470][ T343] ? __kernel_text_address (kernel/extable.c:79) 
[ 23.567807][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.568138][ 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) 
[ 23.568472][ T343] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 23.568865][ T343] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.569189][ T343] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.569517][ T343] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 23.569840][ T343] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 23.570172][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.570507][ T343] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 23.570827][ T343] ? __create_object (mm/kmemleak.c:771) 
[ 23.571153][ T343] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 23.571512][ T343] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 23.571836][ T343] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 23.572260][ T343] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 23.572596][ T343] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 23.572929][ T343] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.573247][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.573587][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.573913][ T343] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 23.574231][ T343] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.574581][ T343] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.574900][ T343] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 23.575221][ T343] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.575578][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.575906][ T343] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 23.576228][ T343] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.576559][ T343] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 23.576890][ T343] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 23.577203][ 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) 
[ 23.577534][ T343] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 23.577864][ T343] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 23.578182][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.578517][ T343] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 23.578862][ T343] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 23.579210][ T343] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 23.579559][ T343] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 23.579891][ T343] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 23.580223][ T343] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 23.580643][ T343] ___sys_sendmsg (net/socket.c:2670) 
[ 23.580963][ T343] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 23.581285][ 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) 
[ 23.581694][ T343] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 23.582015][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.582344][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.582685][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.583006][ 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) 
[ 23.583325][ T343] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.583666][ T343] __sys_sendmsg (net/socket.c:2700) 
[ 23.583991][ T343] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 23.584395][ T343] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 23.584725][ T343] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.585057][ T343] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 23.585398][ T343] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   23.585820][  T343] RIP: 0033:0x7f9a0beb21e7
[ 23.586156][ 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)
[   23.587274][  T343] RSP: 002b:00007ffd28270b28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   23.587775][  T343] RAX: ffffffffffffffda RBX: 00007ffd28271250 RCX: 00007f9a0beb21e7
[   23.588252][  T343] RDX: 0000000000000000 RSI: 00007ffd28270b90 RDI: 0000000000000005
[   23.588760][  T343] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   23.589237][  T343] R10: 000000003930b910 R11: 0000000000000246 R12: 0000000000000004
[   23.589726][  T343] R13: 00000000686e1293 R14: 0000000000499600 R15: 0000000000000000
| [   26.030848][  T365] ------------[ cut here ]------------
| [ 26.031201][ 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) 
| [   26.031963][  T365] Modules linked in: dummy bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall sch_ingress ip_gre gre vrf veth
| [   26.033457][  T365] Tainted: [W]=WARN
[   26.033696][  T365] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 26.034098][ 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) 
[ 26.034439][ 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
[   26.035593][  T365] RSP: 0018:ffffc90000637000 EFLAGS: 00010246
[   26.035990][  T365] RAX: 0000000000000000 RBX: ffff888009539000 RCX: 0000000000000001
[   26.036470][  T365] RDX: 0000000000000000 RSI: ffffffffaac9b941 RDI: ffffffffaa4555e0
[   26.036939][  T365] RBP: ffffc900006370e8 R08: ffff888009539218 R09: 0000000000000000
[   26.037418][  T365] R10: ffffc90000637118 R11: ffff88800a3d95e0 R12: 1ffff920000c6e04
[   26.037875][  T365] R13: 00000000000005b6 R14: ffffc90000637118 R15: ffff888009539218
[   26.038331][  T365] FS:  00007f6c76d8b800(0000) GS:ffff888089637000(0000) knlGS:0000000000000000
[   26.038877][  T365] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.039264][  T365] CR2: 00000000004e6170 CR3: 0000000009869002 CR4: 0000000000772ef0
[   26.039736][  T365] PKRU: 55555554
[   26.039968][  T365] Call Trace:
[   26.040197][  T365]  <TASK>
[ 26.040355][ T365] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 26.040757][ T365] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 26.041068][ T365] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.041408][ T365] netif_set_mtu (net/core/dev.c:9652) 
[ 26.041720][ T365] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 26.042041][ T365] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 26.042351][ T365] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 26.042593][ T365] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 26.042906][ T365] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 26.043220][ T365] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 26.043542][ T365] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 26.043928][ T365] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 26.044243][ T365] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 26.044563][ T365] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 26.044874][ T365] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 26.045178][ T365] ? __dev_get_by_name (net/core/dev.c:865) 
[ 26.045518][ T365] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 26.045837][ T365] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 26.046152][ T365] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 26.046470][ T365] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 26.046803][ T365] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 26.047132][ T365] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 26.047457][ T365] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 26.047775][ T365] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 26.048077][ T365] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.048417][ T365] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 26.048724][ T365] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 26.049032][ T365] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 26.049345][ T365] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.049667][ T365] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 26.049978][ T365] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 26.050288][ T365] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 26.050619][ T365] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 26.050929][ 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) 
[ 26.051235][ T365] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 26.051555][ T365] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 26.051860][ T365] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.052172][ T365] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 26.052490][ T365] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 26.052799][ T365] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 26.053120][ T365] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 26.053442][ T365] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 26.053749][ T365] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 26.054142][ T365] ___sys_sendmsg (net/socket.c:2670) 
[ 26.054455][ T365] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 26.054765][ 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) 
[ 26.055151][ T365] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 26.055515][ T365] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.055835][ T365] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.056146][ T365] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.056461][ 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) 
[ 26.056768][ T365] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.057080][ T365] __sys_sendmsg (net/socket.c:2700) 
[ 26.057392][ T365] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 26.057776][ T365] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 26.058099][ T365] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.058428][ T365] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 26.058741][ T365] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   26.059122][  T365] RIP: 0033:0x7f6c76f581e7
[ 26.059450][ 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)
[   26.060558][  T365] RSP: 002b:00007fffb875e998 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   26.061022][  T365] RAX: ffffffffffffffda RBX: 00007fffb875f0c0 RCX: 00007f6c76f581e7
[   26.061489][  T365] RDX: 0000000000000000 RSI: 00007fffb875ea00 RDI: 0000000000000005
[   26.061948][  T365] RBP: 000000000000000a R08: 00000000000000b4 R09: 0000000000000078
[   26.062415][  T365] R10: 00007f6c76e55ee8 R11: 0000000000000246 R12: 00007fffb875f0e0


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