======================================
| [   19.606954][  T314] ip_gre: GRE over IPv4 tunneling driver
| [   19.660815][  T313] ------------[ cut here ]------------
| [ 19.661287][ 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) 
| [   19.661924][  T313] Modules linked in: ip_gre gre sch_ingress vrf veth
[   19.662965][  T313] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.663366][ 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) 
[ 19.663824][ T313] 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
[   19.664954][  T313] RSP: 0018:ffffc900005b7000 EFLAGS: 00010246
[   19.665359][  T313] RAX: 0000000000000000 RBX: ffff88800b441000 RCX: 0000000000000001
[   19.665833][  T313] RDX: 0000000000000000 RSI: ffffffffaa09b939 RDI: ffffffffa98555e0
[   19.666320][  T313] RBP: ffffc900005b70e8 R08: ffff88800b441218 R09: 0000000000000000
[   19.666794][  T313] R10: ffffc900005b7118 R11: ffffffffaa579160 R12: 1ffff920000b6e04
[   19.667277][  T313] R13: 00000000000005b6 R14: ffffc900005b7118 R15: ffff88800b441218
[   19.667765][  T313] FS:  00007fbad1fb8800(0000) GS:ffff88808a1b7000(0000) knlGS:0000000000000000
[   19.668343][  T313] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.668745][  T313] CR2: 0000000000436890 CR3: 000000000a1de002 CR4: 0000000000772ef0
[   19.669433][  T313] PKRU: 55555554
[   19.669876][  T313] Call Trace:
[   19.670348][  T313]  <TASK>
[ 19.670715][ T313] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 19.671129][ T313] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.671462][ T313] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.671787][ T313] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 19.672123][ T313] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.672454][ T313] netif_set_mtu (net/core/dev.c:9652) 
[ 19.672781][ T313] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.673123][ T313] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 19.673450][ T313] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.673700][ T313] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 19.674034][ T313] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 19.674361][ T313] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 19.674691][ T313] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 19.675094][ T313] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 19.675426][ T313] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 19.678912][ T313] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 19.679255][ T313] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 19.679575][ T313] ? __dev_get_by_name (net/core/dev.c:865) 
[ 19.679895][ T313] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 19.691443][ T313] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 19.691776][ T313] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.692338][ T313] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 19.692667][ T313] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 19.693003][ T313] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.693338][ T313] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.693669][ T313] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.693999][ T313] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.694321][ T313] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.694638][ T313] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.695190][ T313] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.695511][ T313] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.695841][ T313] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.696181][ T313] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.696505][ T313] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.696833][ T313] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.697163][ 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) 
[ 19.697483][ T313] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 19.697805][ T313] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.698368][ T313] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.698709][ T313] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.699054][ T313] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.699378][ T313] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.699708][ T313] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.700043][ T313] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.700371][ T313] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.700778][ T313] ___sys_sendmsg (net/socket.c:2670) 
[ 19.701121][ T313] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.701444][ T313] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 19.701768][ T313] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 19.702097][ T313] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 19.702422][ T313] ? __handle_mm_fault (mm/memory.c:6212) 
[ 19.702741][ T313] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 19.703516][ T313] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 19.704082][ T313] __sys_sendmsg (net/socket.c:2700) 
[ 19.704402][ T313] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.705398][ 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) 
[ 19.705729][ 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) 
[ 19.706059][ T313] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.706619][ T313] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.706948][ T313] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.707340][  T313] RIP: 0033:0x7fbad21851e7
[ 19.707673][ T313] Code: Unable to access opcode bytes at 0x7fbad21851bd.

Code starting with the faulting instruction
===========================================
[   19.708092][  T313] RSP: 002b:00007ffe9996c458 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.708573][  T313] RAX: ffffffffffffffda RBX: 00007ffe9996cb80 RCX: 00007fbad21851e7
[   19.709515][  T313] RDX: 0000000000000000 RSI: 00007ffe9996c4c0 RDI: 0000000000000005
[   19.709995][  T313] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[   19.710488][  T313] R10: 00007fbad207d6f8 R11: 0000000000000246 R12: 00007ffe9996cba0
[   19.711038][  T313] R13: 00000000686e7008 R14: 0000000000499600 R15: 00007ffe9996c5ac
| [   22.658564][  T342] ------------[ cut here ]------------
| [ 22.658958][ T342] WARNING: CPU: 2 PID: 342 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) 
| [   22.659667][  T342] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall ip_gre gre sch_ingress vrf veth
| [   22.662203][  T342] Tainted: [W]=WARN
[   22.662507][  T342] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 22.663051][ T342] 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) 
[ 22.663416][ T342] 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
[   22.664587][  T342] RSP: 0018:ffffc90000b16ef0 EFLAGS: 00010246
[   22.665039][  T342] RAX: 0000000000000000 RBX: ffff88800b0e2000 RCX: 0000000000000001
[   22.665540][  T342] RDX: 0000000000000000 RSI: ffffffffaa09b939 RDI: ffffffffa98555e0
[   22.666047][  T342] RBP: ffffc90000b16fe0 R08: 0000000000000000 R09: 0000000000000000
[   22.666555][  T342] R10: ffffc90000b17010 R11: ffffffffaaea8918 R12: 1ffff92000162de2
[   22.667085][  T342] R13: 00000000000005dc R14: ffffc90000b17010 R15: ffff88800b0e2f08
[   22.667578][  T342] FS:  00007f2bb87b5800(0000) GS:ffff88808a1b7000(0000) knlGS:0000000000000000
[   22.668176][  T342] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.668611][  T342] CR2: 00000000004e5aa8 CR3: 000000000efa9006 CR4: 0000000000772ef0
[   22.669342][  T342] PKRU: 55555554
[   22.669629][  T342] Call Trace:
[   22.669917][  T342]  <TASK>
[ 22.670112][ T342] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 22.670472][ T342] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.670830][ T342] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 22.671188][ T342] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 22.671637][ T342] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 22.672000][ T342] netif_set_mtu (net/core/dev.c:9652) 
[ 22.672372][ T342] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 22.672753][ T342] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 22.673264][ T342] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 22.673554][ T342] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 22.674060][ T342] br_add_if (net/bridge/br_if.c:697) bridge 
[ 22.674439][ T342] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 22.674807][ T342] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 22.675159][ T342] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 22.675642][ T342] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 22.675990][ T342] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 22.676368][ T342] ? __kernel_text_address (kernel/extable.c:79) 
[ 22.676764][ T342] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.677158][ T342] ? __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) 
[ 22.677534][ T342] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 22.677986][ T342] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 22.678330][ T342] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 22.678689][ T342] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 22.679076][ T342] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 22.679417][ T342] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.679747][ T342] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 22.680109][ T342] ? __create_object (mm/kmemleak.c:771) 
[ 22.680457][ T342] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 22.680796][ T342] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 22.681171][ T342] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 22.681603][ T342] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 22.681952][ T342] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 22.682294][ T342] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 22.682622][ T342] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.683026][ T342] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.683380][ T342] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 22.683764][ T342] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 22.684130][ T342] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 22.684467][ T342] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 22.684788][ T342] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 22.685205][ T342] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.685553][ T342] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 22.685911][ T342] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 22.686289][ T342] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 22.686650][ T342] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 22.687066][ T342] ? 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) 
[ 22.687448][ T342] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 22.687774][ T342] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 22.688114][ T342] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.688461][ T342] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 22.688806][ T342] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 22.689202][ T342] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 22.689544][ T342] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 22.689875][ T342] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 22.690277][ T342] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 22.690761][ T342] ___sys_sendmsg (net/socket.c:2670) 
[ 22.691123][ T342] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 22.691486][ T342] ? __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) 
[ 22.691906][ T342] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 22.692287][ T342] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[   22.692309][   T61] ip6_tunnel: h3-gt6 xmit: Local address not yet configured!
[ 22.692660][ T342] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.693678][ T342] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.694061][ T342] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 22.694411][ T342] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 22.694773][ T342] __sys_sendmsg (net/socket.c:2700) 
[ 22.695139][ T342] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 22.695584][ T342] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 22.695928][ T342] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 22.696275][ T342] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 22.696699][ T342] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   22.697228][  T342] RIP: 0033:0x7f2bb89821e7
[ 22.697573][ T342] 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)
[   22.698799][  T342] RSP: 002b:00007ffe1b007d18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   22.699341][  T342] RAX: ffffffffffffffda RBX: 00007ffe1b008440 RCX: 00007f2bb89821e7
[   22.699882][  T342] RDX: 0000000000000000 RSI: 00007ffe1b007d80 RDI: 0000000000000005
[   22.700397][  T342] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   22.700922][  T342] R10: 00000000230cd910 R11: 0000000000000246 R12: 0000000000000004
[   22.701463][  T342] R13: 00000000686e700b R14: 0000000000499600 R15: 0000000000000000
| [   22.987675][  T344] ------------[ cut here ]------------
| [ 22.988042][ 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) 
| [   22.988729][  T344] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall ip_gre gre sch_ingress vrf veth
| [   22.990271][  T344] Tainted: [W]=WARN
[   22.990548][  T344] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 22.991032][ 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) 
[ 22.991368][ 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
[   22.992615][  T344] RSP: 0018:ffffc900004e6ef0 EFLAGS: 00010246
[   22.993045][  T344] RAX: 0000000000000000 RBX: ffff88800b0e2000 RCX: 0000000000000001
[   22.993579][  T344] RDX: 0000000000000000 RSI: ffffffffaa09b939 RDI: ffffffffa98555e0
[   22.994097][  T344] RBP: ffffc900004e6fe0 R08: 0000000000000000 R09: 0000000000000000
[   22.994623][  T344] R10: ffffc900004e7010 R11: ffffffffaaea8918 R12: 1ffff9200009cde2
[   22.997032][  T344] R13: 00000000000005dc R14: ffffc900004e7010 R15: ffff88800b0e2f08
[   22.997602][  T344] FS:  00007f40ff35c800(0000) GS:ffff88808a137000(0000) knlGS:0000000000000000
[   22.998202][  T344] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.998644][  T344] CR2: 00000000004e5ab0 CR3: 000000000efa9004 CR4: 0000000000772ef0
[   22.999171][  T344] PKRU: 55555554
[   22.999437][  T344] Call Trace:
[   22.999699][  T344]  <TASK>
[ 22.999863][ T344] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 23.000230][ T344] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.000585][ T344] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 23.000928][ T344] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 23.001344][ T344] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 23.001679][ T344] netif_set_mtu (net/core/dev.c:9652) 
[ 23.002041][ T344] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 23.002398][ T344] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 23.002858][ T344] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 23.003129][ T344] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 23.003580][ T344] br_add_if (net/bridge/br_if.c:697) bridge 
[ 23.004002][ T344] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 23.004344][ T344] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 23.004689][ T344] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 23.005137][ T344] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 23.005544][ T344] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 23.005871][ T344] ? __kernel_text_address (kernel/extable.c:79) 
[ 23.006237][ T344] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.006586][ T344] ? __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) 
[ 23.006967][ T344] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 23.007393][ T344] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.007715][ T344] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.008065][ T344] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 23.008385][ T344] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 23.008718][ T344] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.009083][ T344] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 23.009419][ T344] ? __create_object (mm/kmemleak.c:771) 
[ 23.009757][ T344] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 23.010124][ T344] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 23.010463][ T344] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 23.010899][ T344] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 23.011252][ T344] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 23.011606][ T344] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.011952][ T344] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.012320][ T344] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.012648][ T344] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 23.012986][ T344] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.013317][ T344] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.013631][ T344] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 23.013967][ T344] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.014319][ T344] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.014682][ T344] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 23.015025][ T344] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.015369][ T344] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 23.015683][ T344] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 23.016018][ 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) 
[ 23.016376][ T344] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 23.016736][ T344] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 23.017095][ T344] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.017417][ T344] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 23.017740][ T344] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 23.018090][ T344] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 23.018429][ T344] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 23.018780][ T344] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 23.019124][ T344] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 23.019551][ T344] ___sys_sendmsg (net/socket.c:2670) 
[ 23.019859][ T344] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 23.020243][ T344] ? __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) 
[ 23.020648][ T344] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 23.021003][ T344] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.021346][ T344] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.021657][ T344] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.022048][ T344] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 23.022383][ T344] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.022729][ T344] __sys_sendmsg (net/socket.c:2700) 
[ 23.023064][ T344] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 23.023474][ T344] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 23.023791][ T344] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.024178][ T344] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 23.024543][ T344] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   23.024967][  T344] RIP: 0033:0x7f40ff5291e7
[ 23.025319][ 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)
[   23.026486][  T344] RSP: 002b:00007ffd525c3b08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   23.027020][  T344] RAX: ffffffffffffffda RBX: 00007ffd525c4230 RCX: 00007f40ff5291e7
[   23.027602][  T344] RDX: 0000000000000000 RSI: 00007ffd525c3b70 RDI: 0000000000000005
[   23.028089][  T344] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   23.028610][  T344] R10: 0000000017e3a910 R11: 0000000000000246 R12: 0000000000000004
[   23.029106][  T344] R13: 00000000686e700b R14: 0000000000499600 R15: 0000000000000000
| [   23.477034][  T347] ------------[ cut here ]------------
| [ 23.477451][ T347] WARNING: CPU: 2 PID: 347 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) 
| [   23.478187][  T347] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall ip_gre gre sch_ingress vrf veth
| [   23.479710][  T347] Tainted: [W]=WARN
[   23.479980][  T347] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 23.480460][ T347] 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) 
[ 23.480815][ T347] 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
[   23.482009][  T347] RSP: 0018:ffffc90000617000 EFLAGS: 00010246
[   23.482444][  T347] RAX: 0000000000000000 RBX: ffff88800b10c000 RCX: 0000000000000001
[   23.482945][  T347] RDX: 0000000000000000 RSI: ffffffffaa09b939 RDI: ffffffffa98555e0
[   23.483422][  T347] RBP: ffffc900006170e8 R08: ffff88800b10c218 R09: 0000000000000000
[   23.483987][  T347] R10: ffffc90000617118 R11: ffffffffaa579160 R12: 1ffff920000c2e04
[   23.484479][  T347] R13: 00000000000005b6 R14: ffffc90000617118 R15: ffff88800b10c218
[   23.485005][  T347] FS:  00007fa52af49800(0000) GS:ffff88808a1b7000(0000) knlGS:0000000000000000
[   23.485605][  T347] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.486035][  T347] CR2: 0000000000436890 CR3: 000000000efc6001 CR4: 0000000000772ef0
[   23.486540][  T347] PKRU: 55555554
[   23.486843][  T347] Call Trace:
[   23.487100][  T347]  <TASK>
[ 23.487279][ T347] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 23.487696][ T347] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.488036][ T347] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 23.488399][ T347] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 23.488744][ T347] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 23.489124][ T347] netif_set_mtu (net/core/dev.c:9652) 
[ 23.489461][ T347] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 23.489852][ T347] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 23.490252][ T347] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 23.490519][ T347] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 23.490870][ T347] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 23.491246][ T347] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 23.491624][ T347] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 23.492071][ T347] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 23.492466][ T347] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 23.492815][ T347] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 23.493180][ T347] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 23.493522][ T347] ? __dev_get_by_name (net/core/dev.c:865) 
[ 23.493893][ T347] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 23.494250][ T347] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 23.494599][ T347] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 23.494961][ T347] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 23.495313][ T347] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 23.495674][ T347] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 23.496052][ T347] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.496429][ T347] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 23.496767][ T347] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.497116][ T347] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.497440][ T347] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 23.497802][ T347] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.498159][ T347] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.498614][ T347] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 23.498959][ T347] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.499318][ T347] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 23.499656][ T347] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 23.500009][ T347] ? 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) 
[ 23.500364][ T347] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 23.500721][ T347] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 23.501049][ T347] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.501388][ T347] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 23.501748][ T347] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 23.502125][ T347] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 23.502481][ T347] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 23.502822][ T347] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 23.503198][ T347] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 23.503641][ T347] ___sys_sendmsg (net/socket.c:2670) 
[ 23.504023][ T347] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 23.504353][ T347] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 23.504686][ T347] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 23.505034][ T347] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 23.505363][ T347] ? __handle_mm_fault (mm/memory.c:6212) 
[ 23.505709][ T347] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 23.506069][ T347] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 23.506438][ T347] __sys_sendmsg (net/socket.c:2700) 
[ 23.506787][ T347] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 23.507163][ T347] ? 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) 
[ 23.507530][ T347] ? 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) 
[ 23.507898][ T347] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.508247][ T347] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 23.508621][ T347] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   23.509045][  T347] RIP: 0033:0x7fa52b1161e7
[ 23.509403][ T347] 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)
[   23.510608][  T347] RSP: 002b:00007fff107de428 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   23.511411][  T347] RAX: ffffffffffffffda RBX: 00007fff107deb50 RCX: 00007fa52b1161e7
[   23.512457][  T347] RDX: 0000000000000000 RSI: 00007fff107de490 RDI: 0000000000000005
[   23.513245][  T347] RBP: 0000000000000008 R08: 00000000000000ac R09: 0000000000000000
[   23.513803][  T347] R10: 00007fa52b00e6f8 R11: 0000000000000246 R12: 00007fff107deb70
[   23.514792][  T347] R13: 00000000686e700c R14: 0000000000499600 R15: 00007fff107de578
| [   24.788599][  T363] ------------[ cut here ]------------
| [ 24.788950][ T363] WARNING: CPU: 3 PID: 363 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) 
| [   24.789602][  T363] Modules linked in: 8021q bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall ip_gre gre sch_ingress vrf veth
| [   24.791149][  T363] Tainted: [W]=WARN
[   24.791396][  T363] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 24.791804][ T363] 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) 
[ 24.792147][ T363] 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
[   24.793317][  T363] RSP: 0018:ffffc900005b6ef0 EFLAGS: 00010246
[   24.793734][  T363] RAX: 0000000000000000 RBX: ffff88800272a000 RCX: 0000000000000001
[   24.794226][  T363] RDX: 0000000000000000 RSI: ffffffffaa09b939 RDI: ffffffffa98555e0
[   24.794712][  T363] RBP: ffffc900005b6fe0 R08: 0000000000000000 R09: 0000000000000000
[   24.795211][  T363] R10: ffffc900005b7010 R11: ffffffffaaea8918 R12: 1ffff920000b6de2
[   24.795697][  T363] R13: 00000000000005dc R14: ffffc900005b7010 R15: ffff88800272af08
[   24.796192][  T363] FS:  00007f8d2f9c6800(0000) GS:ffff88808a237000(0000) knlGS:0000000000000000
[   24.796760][  T363] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.797184][  T363] CR2: 00000000004e6898 CR3: 000000000f4bb003 CR4: 0000000000772ef0
[   24.797708][  T363] PKRU: 55555554
[   24.797965][  T363] Call Trace:
[   24.798213][  T363]  <TASK>
[ 24.798380][ T363] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 24.798705][ T363] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.799050][ T363] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 24.799384][ T363] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 24.799781][ T363] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 24.800097][ T363] netif_set_mtu (net/core/dev.c:9652) 
[ 24.800420][ T363] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 24.800740][ T363] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 24.801180][ T363] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 24.801420][ T363] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 24.801849][ T363] br_add_if (net/bridge/br_if.c:697) bridge 
[ 24.802209][ T363] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 24.802520][ T363] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 24.802831][ T363] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 24.803226][ T363] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 24.803532][ T363] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 24.803853][ T363] ? __kernel_text_address (kernel/extable.c:79) 
[ 24.804200][ T363] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.804526][ T363] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 24.804848][ T363] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 24.805248][ T363] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.805560][ T363] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.805869][ T363] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 24.806189][ T363] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 24.806496][ T363] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.806809][ T363] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 24.807146][ T363] ? __create_object (mm/kmemleak.c:771) 
[ 24.807462][ T363] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 24.807780][ T363] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 24.808104][ T363] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 24.808484][ T363] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 24.808799][ T363] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 24.809120][ T363] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.809429][ T363] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.809749][ T363] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.810068][ T363] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 24.810386][ T363] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.810700][ T363] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.811013][ T363] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 24.811325][ T363] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.811641][ T363] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.811975][ T363] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 24.812303][ T363] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.812615][ T363] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 24.812930][ T363] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 24.813244][ T363] ? 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) 
[ 24.813552][ T363] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 24.813863][ T363] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 24.814178][ T363] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.814498][ T363] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 24.814812][ T363] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 24.815129][ T363] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 24.815449][ T363] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 24.815774][ T363] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 24.816089][ T363] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 24.816488][ T363] ___sys_sendmsg (net/socket.c:2670) 
[ 24.816796][ T363] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 24.817114][ T363] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 24.817501][ T363] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 24.817812][ T363] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.818130][ T363] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.818442][ T363] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.818752][ T363] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 24.819337][ T363] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.819652][ T363] __sys_sendmsg (net/socket.c:2700) 
[ 24.819964][ T363] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 24.820358][ T363] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 24.820676][ T363] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.821217][ T363] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 24.821532][ T363] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   24.822148][  T363] RIP: 0033:0x7f8d2fb931e7
[ 24.822470][ T363] 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)
[   24.823819][  T363] RSP: 002b:00007fff0cc0d998 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   24.824293][  T363] RAX: ffffffffffffffda RBX: 00007fff0cc0e0c0 RCX: 00007f8d2fb931e7
[   24.824762][  T363] RDX: 0000000000000000 RSI: 00007fff0cc0da00 RDI: 0000000000000005
[   24.825458][  T363] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   24.825920][  T363] R10: 00000000337c5910 R11: 0000000000000246 R12: 0000000000000004


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