======================================
| [  204.752198][ T1955] ip_gre: GRE over IPv4 tunneling driver
| [  204.825630][ T1954] ------------[ cut here ]------------
| [ 204.826518][ T1954] WARNING: CPU: 2 PID: 1954 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) 
| [  204.827588][ T1954] Modules linked in: ip_gre gre 8021q act_vlan act_skbedit act_ct nf_flow_table nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 cls_matchall act_mirred act_gact cls_flower sch_ingress vrf veth
[  204.830596][ T1954] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 204.831272][ T1954] 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) 
[ 204.831891][ T1954] 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
[  204.834172][ T1954] RSP: 0018:ffffc90002287000 EFLAGS: 00010246
[  204.835230][ T1954] RAX: 0000000000000000 RBX: ffff88800b4f9000 RCX: 0000000000000001
[  204.836474][ T1954] RDX: 0000000000000000 RSI: ffffffff8a69b939 RDI: ffffffff89e555e0
[  204.837716][ T1954] RBP: ffffc900022870e8 R08: ffff88800b4f9218 R09: 0000000000000000
[  204.843975][ T1954] R10: ffffc90002287118 R11: ffffffff8ab79160 R12: 1ffff92000450e04
[  204.844859][ T1954] R13: 00000000000005b6 R14: ffffc90002287118 R15: ffff88800b4f9218
[  204.854699][ T1954] FS:  00007fecc25b2800(0000) GS:ffff8880a9bb7000(0000) knlGS:0000000000000000
[  204.855721][ T1954] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  204.856465][ T1954] CR2: 00005594ca233d48 CR3: 0000000004ede006 CR4: 0000000000772ef0
[  204.857318][ T1954] PKRU: 55555554
[  204.857769][ T1954] Call Trace:
[  204.858213][ T1954]  <TASK>
[ 204.858537][ T1954] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 204.859264][ T1954] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 204.859853][ T1954] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 204.860442][ T1954] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 204.861030][ T1954] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 204.862072][ T1954] netif_set_mtu (net/core/dev.c:9652) 
[ 204.862683][ T1954] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 204.863283][ T1954] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 204.863880][ T1954] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 204.864311][ T1954] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 204.864892][ T1954] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 204.866389][ T1954] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 204.866993][ T1954] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 204.868141][ T1954] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 204.868780][ T1954] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 204.869365][ T1954] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 204.869976][ T1954] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 204.872680][ T1954] ? __dev_get_by_name (net/core/dev.c:865) 
[ 204.873269][ T1954] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 204.873875][ T1954] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 204.874478][ T1954] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 204.875063][ T1954] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 204.875664][ T1954] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 204.876720][ T1954] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 204.877137][ T1954] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 204.877748][ T1954] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 204.878336][ T1954] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 204.878946][ T1954] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 204.879514][ T1954] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 204.880005][ T1954] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 204.880550][ T1954] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 204.881034][ T1954] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 204.881376][ T1954] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 204.882472][ T1954] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 204.883028][ T1954] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 204.883632][ T1954] ? 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) 
[ 204.884224][ T1954] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 204.885303][ T1954] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 204.885677][ T1954] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 204.886023][ T1954] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 204.886467][ T1954] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 204.887430][ T1954] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 204.888042][ T1954] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 204.888638][ T1954] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 204.889644][ T1954] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 204.890394][ T1954] ___sys_sendmsg (net/socket.c:2670) 
[ 204.890983][ T1954] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 204.891437][ T1954] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 204.892333][ T1954] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 204.892904][ T1954] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 204.893417][ T1954] ? __handle_mm_fault (mm/memory.c:6212) 
[ 204.894392][ T1954] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 204.894991][ T1954] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 204.897235][ T1954] __sys_sendmsg (net/socket.c:2700) 
[ 204.897703][ T1954] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 204.898150][ T1954] ? 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) 
[ 204.898629][ T1954] ? 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) 
[ 204.898978][ T1954] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 204.899320][ T1954] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 204.899681][ T1954] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  204.900318][ T1954] RIP: 0033:0x7fecc277f1e7
[ 204.901226][ T1954] Code: Unable to access opcode bytes at 0x7fecc277f1bd.

Code starting with the faulting instruction
===========================================
[  204.901867][ T1954] RSP: 002b:00007ffd7cc5a068 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  204.902632][ T1954] RAX: ffffffffffffffda RBX: 00007ffd7cc5a790 RCX: 00007fecc277f1e7
[  204.903370][ T1954] RDX: 0000000000000000 RSI: 00007ffd7cc5a0d0 RDI: 0000000000000005
[  204.904113][ T1954] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[  204.905014][ T1954] R10: 00007fecc26776f8 R11: 0000000000000246 R12: 00007ffd7cc5a7b0
[  204.905902][ T1954] R13: 00000000686e664d R14: 0000000000499600 R15: 00007ffd7cc5a1bc
| [  207.623203][ T1979] ------------[ cut here ]------------
| [ 207.623538][ T1979] WARNING: CPU: 3 PID: 1979 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) 
| [  207.624395][ T1979] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 ip_gre gre 8021q act_vlan act_skbedit act_ct nf_flow_table nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 cls_matchall act_mirred act_gact cls_flower sch_ingress vrf veth
| [  207.627255][ T1979] Tainted: [W]=WARN
[  207.627497][ T1979] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 207.627881][ T1979] 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) 
[ 207.628206][ T1979] 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
[  207.629309][ T1979] RSP: 0018:ffffc90000546ef0 EFLAGS: 00010246
[  207.629702][ T1979] RAX: 0000000000000000 RBX: ffff8880098fa000 RCX: 0000000000000001
[  207.630162][ T1979] RDX: 0000000000000000 RSI: ffffffff8a69b939 RDI: ffffffff89e555e0
[  207.630635][ T1979] RBP: ffffc90000546fe0 R08: 0000000000000000 R09: 0000000000000000
[  207.631091][ T1979] R10: ffffc90000547010 R11: ffffffff8b4a8918 R12: 1ffff920000a8de2
[  207.631558][ T1979] R13: 00000000000005dc R14: ffffc90000547010 R15: ffff8880098faf08
[  207.632015][ T1979] FS:  00007f03c36f5800(0000) GS:ffff8880a9c37000(0000) knlGS:0000000000000000
[  207.632567][ T1979] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  207.632954][ T1979] CR2: 00000000004e5aa8 CR3: 000000000c52b004 CR4: 0000000000772ef0
[  207.633415][ T1979] PKRU: 55555554
[  207.633652][ T1979] Call Trace:
[  207.633881][ T1979]  <TASK>
[ 207.634041][ T1979] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 207.634351][ T1979] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 207.634680][ T1979] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 207.634987][ T1979] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 207.635373][ T1979] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 207.635693][ T1979] netif_set_mtu (net/core/dev.c:9652) 
[ 207.636000][ T1979] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 207.636325][ T1979] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 207.636765][ T1979] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 207.636998][ T1979] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 207.637411][ T1979] br_add_if (net/bridge/br_if.c:697) bridge 
[ 207.637769][ T1979] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 207.638086][ T1979] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 207.638398][ T1979] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 207.638792][ T1979] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 207.639103][ T1979] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 207.639410][ T1979] ? __kernel_text_address (kernel/extable.c:79) 
[ 207.639731][ T1979] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 207.640045][ T1979] ? __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) 
[ 207.640354][ T1979] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 207.640748][ T1979] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 207.641059][ T1979] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 207.641373][ T1979] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 207.641694][ T1979] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 207.642001][ T1979] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 207.642310][ T1979] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 207.642628][ T1979] ? __create_object (mm/kmemleak.c:771) 
[ 207.642939][ T1979] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 207.643249][ T1979] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 207.643566][ T1979] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 207.643956][ T1979] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 207.644274][ T1979] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 207.644593][ T1979] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 207.644897][ T1979] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 207.645210][ T1979] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 207.645526][ T1979] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 207.645829][ T1979] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 207.646134][ T1979] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 207.646482][ T1979] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 207.646793][ T1979] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 207.647103][ T1979] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 207.647415][ T1979] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 207.647733][ T1979] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 207.648039][ T1979] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 207.648357][ T1979] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 207.648680][ T1979] ? 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) 
[ 207.648990][ T1979] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 207.649300][ T1979] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 207.649618][ T1979] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 207.649931][ T1979] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 207.650248][ T1979] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 207.650567][ T1979] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 207.650890][ T1979] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 207.651202][ T1979] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 207.651516][ T1979] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 207.651914][ T1979] ___sys_sendmsg (net/socket.c:2670) 
[ 207.652232][ T1979] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 207.652553][ T1979] ? __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) 
[ 207.652939][ T1979] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 207.653257][ T1979] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 207.653579][ T1979] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 207.653894][ T1979] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 207.654202][ T1979] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 207.654521][ T1979] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 207.654838][ T1979] __sys_sendmsg (net/socket.c:2700) 
[ 207.655146][ T1979] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 207.655555][ T1979] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 207.655884][ T1979] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 207.656194][ T1979] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 207.656518][ T1979] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  207.656897][ T1979] RIP: 0033:0x7f03c38c21e7
[ 207.657218][ T1979] 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)
[  207.658332][ T1979] RSP: 002b:00007ffc18140ce8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  207.658806][ T1979] RAX: ffffffffffffffda RBX: 00007ffc18141410 RCX: 00007f03c38c21e7
[  207.659265][ T1979] RDX: 0000000000000000 RSI: 00007ffc18140d50 RDI: 0000000000000005
[  207.659738][ T1979] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  207.660203][ T1979] R10: 0000000025add910 R11: 0000000000000246 R12: 0000000000000004
[  207.660667][ T1979] R13: 00000000686e6650 R14: 0000000000499600 R15: 0000000000000000
| [  207.921749][ T1981] ------------[ cut here ]------------
| [ 207.922072][ T1981] WARNING: CPU: 0 PID: 1981 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) 
| [  207.923537][ T1981] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 ip_gre gre 8021q act_vlan act_skbedit act_ct nf_flow_table nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 cls_matchall act_mirred act_gact cls_flower sch_ingress vrf veth
| [  207.925585][ T1981] Tainted: [W]=WARN
[  207.925821][ T1981] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 207.926216][ T1981] 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) 
[ 207.926548][ T1981] 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
[  207.927660][ T1981] RSP: 0018:ffffc90000526ef0 EFLAGS: 00010246
[  207.928054][ T1981] RAX: 0000000000000000 RBX: ffff8880098fa000 RCX: 0000000000000001
[  207.928521][ T1981] RDX: 0000000000000000 RSI: ffffffff8a69b939 RDI: ffffffff89e555e0
[  207.928991][ T1981] RBP: ffffc90000526fe0 R08: 0000000000000000 R09: 0000000000000000
[  207.929462][ T1981] R10: ffffc90000527010 R11: ffffffff8b4a8918 R12: 1ffff920000a4de2
[  207.929924][ T1981] R13: 00000000000005dc R14: ffffc90000527010 R15: ffff8880098faf08
[  207.930390][ T1981] FS:  00007fb92a8f5800(0000) GS:ffff8880a9ab7000(0000) knlGS:0000000000000000
[  207.931109][ T1981] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  207.931716][ T1981] CR2: 00000000004e5ab0 CR3: 000000000993a004 CR4: 0000000000772ef0
[  207.932180][ T1981] PKRU: 55555554
[  207.932411][ T1981] Call Trace:
[  207.932898][ T1981]  <TASK>
[ 207.933067][ T1981] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 207.933373][ T1981] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 207.933908][ T1981] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 207.934219][ T1981] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 207.934765][ T1981] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 207.935079][ T1981] netif_set_mtu (net/core/dev.c:9652) 
[ 207.935385][ T1981] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 207.935852][ T1981] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 207.936290][ T1981] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 207.936593][ T1981] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 207.937007][ T1981] br_add_if (net/bridge/br_if.c:697) bridge 
[ 207.937357][ T1981] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 207.937682][ T1981] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 207.937993][ T1981] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 207.938380][ T1981] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 207.938716][ T1981] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 207.939022][ T1981] ? __kernel_text_address (kernel/extable.c:79) 
[ 207.939333][ T1981] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 207.939648][ T1981] ? __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) 
[ 207.939997][ T1981] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 207.940394][ T1981] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 207.940724][ T1981] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 207.941034][ T1981] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 207.941349][ T1981] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 207.941668][ T1981] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 207.941976][ T1981] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 207.942280][ T1981] ? __create_object (mm/kmemleak.c:771) 
[ 207.942617][ T1981] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 207.942935][ T1981] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 207.943240][ T1981] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 207.943633][ T1981] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 207.943948][ T1981] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 207.944266][ T1981] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 207.944585][ T1981] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 207.944899][ T1981] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 207.945204][ T1981] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 207.945518][ T1981] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 207.945831][ T1981] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 207.946150][ T1981] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 207.946492][ T1981] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 207.946804][ T1981] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 207.947115][ T1981] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 207.947421][ T1981] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 207.947737][ T1981] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 207.948055][ T1981] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 207.948366][ T1981] ? 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) 
[ 207.948700][ T1981] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 207.949016][ T1981] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 207.949318][ T1981] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 207.949638][ T1981] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 207.949949][ T1981] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 207.950254][ T1981] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 207.950594][ T1981] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 207.950915][ T1981] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 207.951219][ T1981] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 207.951618][ T1981] ___sys_sendmsg (net/socket.c:2670) 
[ 207.951922][ T1981] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 207.952227][ T1981] ? __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) 
[ 207.952619][ T1981] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 207.952940][ T1981] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 207.953247][ T1981] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 207.953566][ T1981] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 207.953878][ T1981] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 207.954186][ T1981] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 207.954517][ T1981] __sys_sendmsg (net/socket.c:2700) 
[ 207.954825][ T1981] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 207.955204][ T1981] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 207.955537][ T1981] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 207.955849][ T1981] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 207.956166][ T1981] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  207.956559][ T1981] RIP: 0033:0x7fb92aac21e7
[ 207.956878][ T1981] 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)
[  207.958039][ T1981] RSP: 002b:00007ffe6a60f608 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  207.958511][ T1981] RAX: ffffffffffffffda RBX: 00007ffe6a60fd30 RCX: 00007fb92aac21e7
[  207.958971][ T1981] RDX: 0000000000000000 RSI: 00007ffe6a60f670 RDI: 0000000000000005
[  207.959429][ T1981] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  207.959910][ T1981] R10: 000000003e117910 R11: 0000000000000246 R12: 0000000000000004
[  207.960375][ T1981] R13: 00000000686e6650 R14: 0000000000499600 R15: 0000000000000000
| [  208.414879][ T1984] ------------[ cut here ]------------
| [ 208.415313][ T1984] WARNING: CPU: 3 PID: 1984 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) 
| [  208.415949][ T1984] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 ip_gre gre 8021q act_vlan act_skbedit act_ct nf_flow_table nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 cls_matchall act_mirred act_gact cls_flower sch_ingress vrf veth
| [  208.418056][ T1984] Tainted: [W]=WARN
[  208.418304][ T1984] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 208.418708][ T1984] 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) 
[ 208.419038][ T1984] 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
[  208.420209][ T1984] RSP: 0018:ffffc900005d7000 EFLAGS: 00010246
[  208.420630][ T1984] RAX: 0000000000000000 RBX: ffff88800c781000 RCX: 0000000000000001
[  208.421113][ T1984] RDX: 0000000000000000 RSI: ffffffff8a69b939 RDI: ffffffff89e555e0
[  208.421606][ T1984] RBP: ffffc900005d70e8 R08: ffff88800c781218 R09: 0000000000000000
[  208.422088][ T1984] R10: ffffc900005d7118 R11: ffffffff8ab79160 R12: 1ffff920000bae04
[  208.422587][ T1984] R13: 00000000000005b6 R14: ffffc900005d7118 R15: ffff88800c781218
[  208.423054][ T1984] FS:  00007fe614bcc800(0000) GS:ffff8880a9c37000(0000) knlGS:0000000000000000
[  208.423661][ T1984] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  208.424059][ T1984] CR2: 0000000000436890 CR3: 0000000004cbb002 CR4: 0000000000772ef0
[  208.424552][ T1984] PKRU: 55555554
[  208.424797][ T1984] Call Trace:
[  208.425029][ T1984]  <TASK>
[ 208.425189][ T1984] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 208.425599][ T1984] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 208.426002][ T1984] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 208.426337][ T1984] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 208.426656][ T1984] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 208.426972][ T1984] netif_set_mtu (net/core/dev.c:9652) 
[ 208.427278][ T1984] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 208.427620][ T1984] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 208.427944][ T1984] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 208.428193][ T1984] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 208.428526][ T1984] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 208.428861][ T1984] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 208.429191][ T1984] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 208.429587][ T1984] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 208.429907][ T1984] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 208.430232][ T1984] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 208.430561][ T1984] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 208.430865][ T1984] ? __dev_get_by_name (net/core/dev.c:865) 
[ 208.431183][ T1984] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 208.431515][ T1984] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 208.431830][ T1984] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 208.432148][ T1984] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 208.432530][ T1984] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 208.432869][ T1984] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 208.433192][ T1984] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 208.433527][ T1984] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 208.433832][ T1984] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 208.434141][ T1984] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 208.434444][ T1984] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 208.434772][ T1984] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 208.435095][ T1984] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 208.435421][ T1984] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 208.435764][ T1984] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 208.436084][ T1984] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 208.436431][ T1984] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 208.436745][ T1984] ? 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) 
[ 208.437066][ T1984] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 208.437374][ T1984] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 208.437694][ T1984] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 208.438020][ T1984] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 208.438346][ T1984] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 208.438681][ T1984] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 208.439004][ T1984] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 208.439316][ T1984] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 208.439641][ T1984] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 208.440049][ T1984] ___sys_sendmsg (net/socket.c:2670) 
[ 208.440357][ T1984] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 208.440670][ T1984] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 208.440981][ T1984] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 208.441294][ T1984] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 208.441626][ T1984] ? __handle_mm_fault (mm/memory.c:6212) 
[ 208.441948][ T1984] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 208.442282][ T1984] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 208.442619][ T1984] __sys_sendmsg (net/socket.c:2700) 
[ 208.442928][ T1984] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 208.443233][ T1984] ? 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) 
[ 208.443596][ T1984] ? 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) 
[ 208.443907][ T1984] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 208.444233][ T1984] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 208.444559][ T1984] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  208.444939][ T1984] RIP: 0033:0x7fe614d991e7
[ 208.445276][ T1984] 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)
[  208.446432][ T1984] RSP: 002b:00007fff74a12518 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  208.446929][ T1984] RAX: ffffffffffffffda RBX: 00007fff74a12c40 RCX: 00007fe614d991e7
[  208.447427][ T1984] RDX: 0000000000000000 RSI: 00007fff74a12580 RDI: 0000000000000005
[  208.447936][ T1984] RBP: 0000000000000008 R08: 00000000000000ac R09: 0000000000000000
[  208.448395][ T1984] R10: 00007fe614c916f8 R11: 0000000000000246 R12: 00007fff74a12c60
[  208.448881][ T1984] R13: 00000000686e6651 R14: 0000000000499600 R15: 00007fff74a12668
| [  209.093299][ T1991] ------------[ cut here ]------------
| [ 209.093650][ T1991] WARNING: CPU: 3 PID: 1991 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) 
| [  209.094351][ T1991] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 ip_gre gre 8021q act_vlan act_skbedit act_ct nf_flow_table nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 cls_matchall act_mirred act_gact cls_flower sch_ingress vrf veth
| [  209.096631][ T1991] Tainted: [W]=WARN
[  209.096895][ T1991] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 209.097334][ T1991] 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) 
[ 209.097706][ T1991] 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
[  209.098944][ T1991] RSP: 0018:ffffc90000646ef0 EFLAGS: 00010246
[  209.099394][ T1991] RAX: 0000000000000000 RBX: ffff8880098fa000 RCX: 0000000000000001
[  209.099920][ T1991] RDX: 0000000000000000 RSI: ffffffff8a69b939 RDI: ffffffff89e555e0
[  209.100443][ T1991] RBP: ffffc90000646fe0 R08: 0000000000000000 R09: 0000000000000000
[  209.100972][ T1991] R10: ffffc90000647010 R11: ffffffff8b4a8918 R12: 1ffff920000c8de2
[  209.101504][ T1991] R13: 00000000000005dc R14: ffffc90000647010 R15: ffff8880098faf08
[  209.102033][ T1991] FS:  00007f76e8a0d800(0000) GS:ffff8880a9c37000(0000) knlGS:0000000000000000
[  209.102646][ T1991] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  209.103085][ T1991] CR2: 00000000004e5ac0 CR3: 0000000005368002 CR4: 0000000000772ef0
[  209.103623][ T1991] PKRU: 55555554
[  209.103885][ T1991] Call Trace:
[  209.104153][ T1991]  <TASK>
[ 209.104335][ T1991] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 209.104697][ T1991] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 209.105055][ T1991] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 209.105406][ T1991] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 209.105848][ T1991] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 209.106213][ T1991] netif_set_mtu (net/core/dev.c:9652) 
[ 209.106591][ T1991] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 209.106957][ T1991] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 209.107428][ T1991] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 209.107703][ T1991] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 209.108168][ T1991] br_add_if (net/bridge/br_if.c:697) bridge 
[ 209.108567][ T1991] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 209.108923][ T1991] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 209.109283][ T1991] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 209.109732][ T1991] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 209.110084][ T1991] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 209.110429][ T1991] ? __kernel_text_address (kernel/extable.c:79) 
[ 209.110789][ T1991] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 209.111144][ T1991] ? __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) 
[ 209.111499][ T1991] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 209.111940][ T1991] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 209.112296][ T1991] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 209.112652][ T1991] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 209.112999][ T1991] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 209.113346][ T1991] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 209.113701][ T1991] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 209.114045][ T1991] ? __create_object (mm/kmemleak.c:771) 
[ 209.114395][ T1991] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 209.114768][ T1991] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 209.115118][ T1991] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 209.115559][ T1991] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 209.115916][ T1991] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 209.116291][ T1991] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 209.116615][ T1991] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 209.116935][ T1991] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 209.117251][ T1991] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 209.117563][ T1991] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 209.117873][ T1991] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 209.118188][ T1991] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 209.118511][ T1991] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 209.118824][ T1991] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 209.119141][ T1991] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 209.119463][ T1991] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 209.119779][ T1991] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 209.120095][ T1991] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 209.120402][ T1991] ? 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) 
[ 209.120718][ T1991] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 209.121032][ T1991] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 209.121337][ T1991] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 209.121657][ T1991] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 209.121980][ T1991] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 209.122287][ T1991] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 209.122616][ T1991] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 209.122929][ T1991] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 209.123235][ T1991] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 209.123637][ T1991] ___sys_sendmsg (net/socket.c:2670) 
[ 209.123944][ T1991] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 209.124269][ T1991] ? __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) 
[ 209.124663][ T1991] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 209.124977][ T1991] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 209.125289][ T1991] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 209.125606][ T1991] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 209.125914][ T1991] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 209.126232][ T1991] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 209.126565][ T1991] __sys_sendmsg (net/socket.c:2700) 
[ 209.126881][ T1991] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 209.127260][ T1991] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 209.127587][ T1991] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 209.127900][ T1991] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 209.128211][ T1991] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  209.128609][ T1991] RIP: 0033:0x7f76e8bda1e7
[ 209.128939][ T1991] 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)
[  209.130049][ T1991] RSP: 002b:00007ffdcdf907d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  209.130526][ T1991] RAX: ffffffffffffffda RBX: 00007ffdcdf90f00 RCX: 00007f76e8bda1e7
[  209.131001][ T1991] RDX: 0000000000000000 RSI: 00007ffdcdf90840 RDI: 0000000000000005
[  209.131471][ T1991] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  209.131930][ T1991] R10: 000000003dac2910 R11: 0000000000000246 R12: 0000000000000004
[  209.132390][ T1991] R13: 00000000686e6651 R14: 0000000000499600 R15: 0000000000000000
| [  259.292899][ T2220] ------------[ cut here ]------------
| [ 259.293250][ T2220] WARNING: CPU: 3 PID: 2220 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) 
| [  259.295155][ T2220] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 ip_gre gre 8021q act_vlan act_skbedit act_ct nf_flow_table nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 cls_matchall act_mirred act_gact cls_flower sch_ingress vrf veth
| [  259.297155][ T2220] Tainted: [W]=WARN
[  259.297395][ T2220] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 259.297794][ T2220] 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) 
[ 259.298113][ T2220] 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
[  259.299210][ T2220] RSP: 0018:ffffc900011d6f70 EFLAGS: 00010246
[  259.299609][ T2220] RAX: 0000000000000000 RBX: ffff8880098fa000 RCX: 0000000000000001
[  259.300107][ T2220] RDX: 0000000000000000 RSI: ffffffff8a69b939 RDI: ffffffff89e555e0
[  259.300623][ T2220] RBP: ffffc900011d7058 R08: 0000000000000000 R09: 0000000000000000
[  259.301082][ T2220] R10: ffffc900011d7088 R11: ffffffff86a00130 R12: 1ffff9200023adf2
[  259.301546][ T2220] R13: 00000000000005dc R14: ffffc900011d7088 R15: ffff8880098faf08
[  259.302008][ T2220] FS:  00007f4528795800(0000) GS:ffff8880a9c37000(0000) knlGS:0000000000000000
[  259.302557][ T2220] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  259.302950][ T2220] CR2: 00000000004e5ac0 CR3: 000000000a011003 CR4: 0000000000772ef0
[  259.303410][ T2220] PKRU: 55555554
[  259.303652][ T2220] Call Trace:
[  259.303886][ T2220]  <TASK>
[ 259.304043][ T2220] ? __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) 
[ 259.304435][ T2220] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 259.304813][ T2220] ? do_set_master (net/core/rtnetlink.c:2932) 
[ 259.305124][ T2220] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 259.305430][ T2220] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 259.305746][ T2220] ? netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 259.306055][ T2220] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 259.306372][ T2220] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 259.306689][ T2220] ? ___sys_sendmsg (net/socket.c:2670) 
[ 259.306998][ T2220] ? __sys_sendmsg (net/socket.c:2700) 
[ 259.307309][ T2220] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 259.307640][ T2220] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 259.308027][ T2220] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 259.308344][ T2220] netif_set_mtu (net/core/dev.c:9652) 
[ 259.308672][ T2220] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 259.308996][ T2220] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 259.309236][ T2220] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 259.309674][ T2220] br_del_if (net/bridge/br_if.c:743) bridge 
[ 259.310010][ T2220] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 259.310316][ T2220] do_set_master (net/core/rtnetlink.c:2932) 
[ 259.310639][ T2220] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 259.310957][ T2220] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 259.311345][ T2220] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 259.311659][ T2220] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 259.311977][ T2220] ? __kernel_text_address (kernel/extable.c:79) 
[ 259.312294][ T2220] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 259.312630][ T2220] ? __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) 
[ 259.312944][ T2220] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 259.313330][ T2220] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 259.313647][ T2220] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 259.313957][ T2220] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 259.314267][ T2220] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 259.314583][ T2220] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 259.314896][ T2220] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 259.315198][ T2220] ? __create_object (mm/kmemleak.c:771) 
[ 259.315522][ T2220] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 259.315830][ T2220] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 259.316136][ T2220] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 259.316549][ T2220] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 259.316868][ T2220] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 259.317180][ T2220] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 259.317491][ T2220] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 259.317800][ T2220] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 259.318108][ T2220] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 259.318410][ T2220] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 259.318724][ T2220] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 259.319029][ T2220] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 259.319340][ T2220] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 259.319660][ T2220] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 259.319969][ T2220] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 259.320276][ T2220] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 259.320602][ T2220] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 259.320923][ T2220] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 259.321228][ T2220] ? 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) 
[ 259.321550][ T2220] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 259.321858][ T2220] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 259.322163][ T2220] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 259.322485][ T2220] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 259.322796][ T2220] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 259.323103][ T2220] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 259.323419][ T2220] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 259.323754][ T2220] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 259.324059][ T2220] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 259.324471][ T2220] ___sys_sendmsg (net/socket.c:2670) 
[ 259.324772][ T2220] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 259.325081][ T2220] ? __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) 
[ 259.325474][ T2220] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 259.325782][ T2220] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 259.326100][ T2220] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 259.326430][ T2220] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 259.326746][ T2220] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 259.327053][ T2220] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 259.327364][ T2220] __sys_sendmsg (net/socket.c:2700) 
[ 259.327676][ T2220] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 259.328052][ T2220] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 259.328378][ T2220] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 259.328712][ T2220] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 259.329023][ T2220] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  259.329401][ T2220] RIP: 0033:0x7f45289621e7
[ 259.329731][ T2220] 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)
[  259.330837][ T2220] RSP: 002b:00007ffc8ec74d38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  259.331299][ T2220] RAX: ffffffffffffffda RBX: 00007ffc8ec75460 RCX: 00007f45289621e7
[  259.331768][ T2220] RDX: 0000000000000000 RSI: 00007ffc8ec74da0 RDI: 0000000000000005
[  259.332226][ T2220] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[  259.332718][ T2220] R10: 00007f452885fee8 R11: 0000000000000246 R12: 0000000000000003


Finger prints:
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:br_mtu_auto_adjust:br_del_if
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