======================================
| [   20.475250][  T313] ip_gre: GRE over IPv4 tunneling driver
| [   20.541697][  T312] ------------[ cut here ]------------
| [ 20.542151][ T312] WARNING: CPU: 3 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) 
| [   20.543043][  T312] Modules linked in: ip_gre gre sch_ingress vrf veth
[   20.544128][  T312] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.544545][ 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) 
[ 20.544904][ 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
[   20.546066][  T312] RSP: 0018:ffffc90000677000 EFLAGS: 00010246
[   20.546506][  T312] RAX: 0000000000000000 RBX: ffff888009a7c000 RCX: 0000000000000001
[   20.547015][  T312] RDX: 0000000000000000 RSI: ffffffffa249b941 RDI: ffffffffa1c555e0
[   20.547524][  T312] RBP: ffffc900006770e8 R08: ffff888009a7c218 R09: 0000000000000000
[   20.548027][  T312] R10: ffffc90000677118 R11: ffffffffa2979160 R12: 1ffff920000cee04
[   20.548524][  T312] R13: 00000000000005b6 R14: ffffc90000677118 R15: ffff888009a7c218
[   20.549015][  T312] FS:  00007f8dab347800(0000) GS:ffff888091e37000(0000) knlGS:0000000000000000
[   20.549815][  T312] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.550251][  T312] CR2: 0000000000436890 CR3: 0000000005b77005 CR4: 0000000000772ef0
[   20.550744][  T312] PKRU: 55555554
[   20.550996][  T312] Call Trace:
[   20.551246][  T312]  <TASK>
[ 20.551409][ T312] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 20.551820][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.552168][ T312] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.552499][ T312] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 20.552836][ T312] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 20.553171][ T312] netif_set_mtu (net/core/dev.c:9652) 
[ 20.553492][ T312] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.553817][ T312] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 20.554134][ T312] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.554375][ T312] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 20.554706][ T312] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 20.555040][ T312] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 20.555380][ T312] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 20.555769][ T312] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 20.556099][ T312] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 20.556422][ T312] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 20.556732][ T312] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 20.557049][ T312] ? __dev_get_by_name (net/core/dev.c:865) 
[ 20.557385][ T312] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 20.557715][ T312] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 20.558044][ T312] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.558376][ T312] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 20.558692][ T312] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 20.559015][ T312] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.559339][ T312] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.559670][ T312] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.559977][ T312] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.560311][ T312] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.560619][ T312] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.560935][ T312] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.561256][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.561571][ T312] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.561907][ T312] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.562243][ T312] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.562571][ T312] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.562903][ 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) 
[ 20.563463][ T312] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 20.564035][ T312] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.564398][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.564720][ T312] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.565036][ T312] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.565362][ T312] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.565691][ T312] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.566015][ T312] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.566336][ T312] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.566735][ T312] ___sys_sendmsg (net/socket.c:2670) 
[ 20.567046][ T312] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.567364][ T312] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 20.567691][ T312] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 20.568006][ T312] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 20.568343][ T312] ? __handle_mm_fault (mm/memory.c:6212) 
[ 20.568660][ T312] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 20.568974][ T312] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 20.569318][ T312] __sys_sendmsg (net/socket.c:2700) 
[ 20.569631][ T312] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.569944][ 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) 
[ 20.570289][ 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) 
[ 20.570603][ T312] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.570934][ T312] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.571256][ T312] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.571657][  T312] RIP: 0033:0x7f8dab5141e7
[ 20.571996][ T312] Code: Unable to access opcode bytes at 0x7f8dab5141bd.

Code starting with the faulting instruction
===========================================
[   20.572418][  T312] RSP: 002b:00007fff6f4e2b58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.572898][  T312] RAX: ffffffffffffffda RBX: 00007fff6f4e3280 RCX: 00007f8dab5141e7
[   20.573384][  T312] RDX: 0000000000000000 RSI: 00007fff6f4e2bc0 RDI: 0000000000000005
[   20.573857][  T312] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[   20.574338][  T312] R10: 00007f8dab40c6f8 R11: 0000000000000246 R12: 00007fff6f4e32a0
[   20.574808][  T312] R13: 00000000686e1552 R14: 0000000000499600 R15: 00007fff6f4e2cac
| [   23.606526][  T340] ------------[ cut here ]------------
| [ 23.607165][ T340] WARNING: CPU: 2 PID: 340 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   23.608765][  T340] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall ip_gre gre sch_ingress vrf veth
| [   23.611997][  T340] Tainted: [W]=WARN
[   23.612462][  T340] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 23.613157][ T340] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 23.613778][ T340] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   23.615965][  T340] RSP: 0018:ffffc900005e6ef0 EFLAGS: 00010246
[   23.616623][  T340] RAX: 0000000000000000 RBX: ffff888005122000 RCX: 0000000000000001
[   23.617113][  T340] RDX: 0000000000000000 RSI: ffffffffa249b941 RDI: ffffffffa1c555e0
[   23.617624][  T340] RBP: ffffc900005e6fe0 R08: 0000000000000000 R09: 0000000000000000
[   23.618115][  T340] R10: ffffc900005e7010 R11: ffffffffa32a8918 R12: 1ffff920000bcde2
[   23.618620][  T340] R13: 00000000000005dc R14: ffffc900005e7010 R15: ffff888005122f08
[   23.619104][  T340] FS:  00007fb3f71c8800(0000) GS:ffff888091db7000(0000) knlGS:0000000000000000
[   23.619804][  T340] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.620238][  T340] CR2: 00000000004e5aa8 CR3: 000000000c15f001 CR4: 0000000000772ef0
[   23.620728][  T340] PKRU: 55555554
[   23.620977][  T340] Call Trace:
[   23.621257][  T340]  <TASK>
[ 23.621434][ T340] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 23.621756][ T340] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.622087][ T340] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 23.622437][ T340] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 23.622836][ T340] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 23.623166][ T340] netif_set_mtu (net/core/dev.c:9652) 
[ 23.623509][ T340] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 23.623845][ T340] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 23.624423][ T340] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 23.624856][ T340] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 23.625643][ T340] br_add_if (net/bridge/br_if.c:697) bridge 
[ 23.626172][ T340] do_set_master (net/core/rtnetlink.c:2948) 
[ 23.626518][ T340] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 23.626850][ T340] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 23.627280][ T340] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 23.627606][ T340] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 23.627925][ T340] ? __kernel_text_address (kernel/extable.c:79) 
[ 23.628282][ T340] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.628607][ T340] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 23.628926][ T340] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 23.629350][ T340] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.629675][ T340] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.629990][ T340] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 23.630337][ T340] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 23.630657][ T340] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.631033][ T340] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 23.631398][ T340] ? __create_object (mm/kmemleak.c:771) 
[ 23.631731][ T340] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 23.632064][ T340] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 23.632425][ T340] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 23.632819][ T340] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 23.633157][ T340] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 23.633756][ T340] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.634292][ T340] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.634622][ T340] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.634941][ T340] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 23.635294][ T340] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.635619][ T340] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.635941][ T340] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 23.636305][ T340] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.636628][ T340] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.636950][ T340] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 23.637322][ T340] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.637653][ T340] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 23.637984][ T340] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 23.638310][ T340] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 23.638630][ T340] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 23.638952][ T340] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 23.639283][ T340] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.639607][ T340] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 23.639936][ T340] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 23.640269][ T340] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 23.640592][ T340] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 23.640960][ T340] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 23.641290][ T340] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 23.641692][ T340] ___sys_sendmsg (net/socket.c:2670) 
[ 23.642008][ T340] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 23.642342][ T340] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 23.642746][ T340] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 23.643067][ T340] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.643407][ T340] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.643733][ T340] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.644063][ T340] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 23.644399][ T340] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.644737][ T340] __sys_sendmsg (net/socket.c:2700) 
[ 23.645053][ T340] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 23.645483][ T340] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 23.645819][ T340] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.646140][ T340] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 23.646479][ T340] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   23.646872][  T340] RIP: 0033:0x7fb3f73951e7
[ 23.647200][ T340] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   23.648332][  T340] RSP: 002b:00007fff262f7048 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   23.648809][  T340] RAX: ffffffffffffffda RBX: 00007fff262f7770 RCX: 00007fb3f73951e7
[   23.649301][  T340] RDX: 0000000000000000 RSI: 00007fff262f70b0 RDI: 0000000000000005
[   23.649774][  T340] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   23.650254][  T340] R10: 0000000011169910 R11: 0000000000000246 R12: 0000000000000004
[   23.650751][  T340] R13: 00000000686e1555 R14: 0000000000499600 R15: 0000000000000000
| [   23.873659][  T343] ------------[ cut here ]------------
| [ 23.873977][ 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) 
| [   23.874596][  T343] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall ip_gre gre sch_ingress vrf veth
| [   23.877277][  T343] Tainted: [W]=WARN
[   23.877511][  T343] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 23.877893][ 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) 
[ 23.878249][ 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
[   23.879357][  T343] RSP: 0018:ffffc90000606ef0 EFLAGS: 00010246
[   23.879743][  T343] RAX: 0000000000000000 RBX: ffff888005122000 RCX: 0000000000000001
[   23.880206][  T343] RDX: 0000000000000000 RSI: ffffffffa249b941 RDI: ffffffffa1c555e0
[   23.880694][  T343] RBP: ffffc90000606fe0 R08: 0000000000000000 R09: 0000000000000000
[   23.881169][  T343] R10: ffffc90000607010 R11: ffffffffa32a8918 R12: 1ffff920000c0de2
[   23.881639][  T343] R13: 00000000000005dc R14: ffffc90000607010 R15: ffff888005122f08
[   23.882103][  T343] FS:  00007fcd28953800(0000) GS:ffff888091cb7000(0000) knlGS:0000000000000000
[   23.882646][  T343] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.883041][  T343] CR2: 00000000004e5ab0 CR3: 000000000e4e1002 CR4: 0000000000772ef0
[   23.883507][  T343] PKRU: 55555554
[   23.883735][  T343] Call Trace:
[   23.883965][  T343]  <TASK>
[ 23.884123][ T343] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 23.884437][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.884750][ T343] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 23.885057][ T343] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 23.885449][ T343] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 23.885758][ T343] netif_set_mtu (net/core/dev.c:9652) 
[ 23.886065][ T343] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 23.886387][ T343] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 23.886815][ T343] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 23.887049][ T343] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 23.887474][ T343] br_add_if (net/bridge/br_if.c:697) bridge 
[ 23.887819][ T343] do_set_master (net/core/rtnetlink.c:2948) 
[ 23.888132][ T343] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 23.888446][ T343] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 23.888829][ T343] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 23.889134][ T343] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 23.889446][ T343] ? __kernel_text_address (kernel/extable.c:79) 
[ 23.889761][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.890069][ 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) 
[ 23.890385][ T343] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 23.890773][ T343] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.891086][ T343] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.891409][ T343] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 23.891713][ T343] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 23.892023][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.892338][ T343] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 23.892642][ T343] ? __create_object (mm/kmemleak.c:771) 
[ 23.892950][ T343] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 23.893264][ T343] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 23.893573][ T343] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 23.893954][ T343] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 23.894277][ T343] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 23.894595][ T343] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.894900][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.895250][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.895561][ T343] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 23.895865][ T343] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.896172][ T343] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.896487][ T343] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 23.896795][ T343] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.897112][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.897432][ T343] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 23.897737][ T343] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.898043][ T343] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 23.898369][ T343] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 23.898672][ 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) 
[ 23.898986][ T343] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 23.899307][ T343] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 23.899612][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.899925][ T343] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 23.900245][ T343] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 23.900553][ T343] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 23.900877][ T343] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 23.901185][ T343] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 23.901502][ T343] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 23.901893][ T343] ___sys_sendmsg (net/socket.c:2670) 
[ 23.902197][ T343] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 23.902511][ 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) 
[ 23.902894][ T343] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 23.903205][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.903526][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.903842][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.904149][ 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) 
[ 23.904468][ T343] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.904782][ T343] __sys_sendmsg (net/socket.c:2700) 
[ 23.905087][ T343] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 23.905479][ T343] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 23.905804][ T343] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.906120][ T343] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 23.906467][ T343] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   23.906849][  T343] RIP: 0033:0x7fcd28b201e7
[ 23.907165][ 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)
[   23.908262][  T343] RSP: 002b:00007ffc47ae8ac8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   23.908725][  T343] RAX: ffffffffffffffda RBX: 00007ffc47ae91f0 RCX: 00007fcd28b201e7
[   23.909181][  T343] RDX: 0000000000000000 RSI: 00007ffc47ae8b30 RDI: 0000000000000005
[   23.909650][  T343] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   23.910107][  T343] R10: 0000000002cee910 R11: 0000000000000246 R12: 0000000000000004
[   23.910586][  T343] R13: 00000000686e1555 R14: 0000000000499600 R15: 0000000000000000
| [   24.331163][  T346] ------------[ cut here ]------------
| [ 24.331554][ T346] WARNING: CPU: 2 PID: 346 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) 
| [   24.332184][  T346] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall ip_gre gre sch_ingress vrf veth
| [   24.333601][  T346] Tainted: [W]=WARN
[   24.333849][  T346] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 24.334253][ T346] 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) 
[ 24.334585][ T346] 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
[   24.335734][  T346] RSP: 0018:ffffc90000637000 EFLAGS: 00010246
[   24.336160][  T346] RAX: 0000000000000000 RBX: ffff88800e48c000 RCX: 0000000000000001
[   24.336657][  T346] RDX: 0000000000000000 RSI: ffffffffa249b941 RDI: ffffffffa1c555e0
[   24.337159][  T346] RBP: ffffc900006370e8 R08: ffff88800e48c218 R09: 0000000000000000
[   24.337663][  T346] R10: ffffc90000637118 R11: ffffffffa2979160 R12: 1ffff920000c6e04
[   24.338129][  T346] R13: 00000000000005b6 R14: ffffc90000637118 R15: ffff88800e48c218
[   24.338606][  T346] FS:  00007f3999a32800(0000) GS:ffff888091db7000(0000) knlGS:0000000000000000
[   24.339167][  T346] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.339575][  T346] CR2: 0000000000436890 CR3: 000000000e9ac005 CR4: 0000000000772ef0
[   24.340050][  T346] PKRU: 55555554
[   24.340304][  T346] Call Trace:
[   24.340550][  T346]  <TASK>
[ 24.340736][ T346] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 24.341135][ T346] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.341480][ T346] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 24.341803][ T346] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 24.342128][ T346] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 24.342496][ T346] netif_set_mtu (net/core/dev.c:9652) 
[ 24.342815][ T346] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 24.343148][ T346] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 24.343479][ T346] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 24.343726][ T346] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 24.344053][ T346] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 24.344386][ T346] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 24.344713][ T346] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 24.345105][ T346] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 24.345441][ T346] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 24.345764][ T346] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 24.346089][ T346] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 24.346410][ T346] ? __dev_get_by_name (net/core/dev.c:865) 
[ 24.346731][ T346] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 24.347046][ T346] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 24.347376][ T346] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 24.347692][ T346] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 24.348017][ T346] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 24.348350][ T346] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 24.348679][ T346] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.349005][ T346] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 24.349347][ T346] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.349671][ T346] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.349987][ T346] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 24.350314][ T346] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.350636][ T346] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.350974][ T346] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 24.351312][ T346] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.351631][ T346] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 24.351965][ T346] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 24.352291][ T346] ? 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) 
[ 24.352665][ T346] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 24.353005][ T346] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 24.353355][ T346] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.353697][ T346] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 24.354037][ T346] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 24.354390][ T346] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 24.354735][ T346] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 24.355077][ T346] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 24.355402][ T346] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 24.355808][ T346] ___sys_sendmsg (net/socket.c:2670) 
[ 24.356130][ T346] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 24.356461][ T346] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 24.356785][ T346] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 24.357106][ T346] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 24.357436][ T346] ? __handle_mm_fault (mm/memory.c:6212) 
[ 24.357759][ T346] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 24.358080][ T346] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 24.358426][ T346] __sys_sendmsg (net/socket.c:2700) 
[ 24.358745][ T346] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 24.359066][ T346] ? 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) 
[ 24.359414][ T346] ? 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) 
[ 24.359739][ T346] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.360058][ T346] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 24.360396][ T346] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   24.360812][  T346] RIP: 0033:0x7f3999bff1e7
[ 24.361149][ T346] 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)
[   24.362257][  T346] RSP: 002b:00007ffe1b1e5c98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   24.362736][  T346] RAX: ffffffffffffffda RBX: 00007ffe1b1e63c0 RCX: 00007f3999bff1e7
[   24.363202][  T346] RDX: 0000000000000000 RSI: 00007ffe1b1e5d00 RDI: 0000000000000005
[   24.363675][  T346] RBP: 0000000000000008 R08: 00000000000000ac R09: 0000000000000000
[   24.364138][  T346] R10: 00007f3999af76f8 R11: 0000000000000246 R12: 00007ffe1b1e63e0


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