======================================
| [  331.890059][ T1831] ip_gre: GRE over IPv4 tunneling driver
| [  331.939008][ T1830] ------------[ cut here ]------------
| [ 331.939439][ T1830] WARNING: CPU: 0 PID: 1830 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) 
| [  331.940071][ T1830] Modules linked in: ip_gre gre sch_ingress vrf veth
[  331.941073][ T1830] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 331.941488][ T1830] 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) 
[ 331.941805][ T1830] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  331.942913][ T1830] RSP: 0018:ffffc900029b7000 EFLAGS: 00010246
[  331.943303][ T1830] RAX: 0000000000000000 RBX: ffff88800b954000 RCX: 0000000000000001
[  331.943764][ T1830] RDX: 0000000000000000 RSI: ffffffffb6a9b941 RDI: ffffffffb62555e0
[  331.944232][ T1830] RBP: ffffc900029b70e8 R08: ffff88800b954218 R09: 0000000000000000
[  331.944695][ T1830] R10: ffffc900029b7118 R11: ffffffffb6f79160 R12: 1ffff92000536e04
[  331.945164][ T1830] R13: 00000000000005b6 R14: ffffc900029b7118 R15: ffff88800b954218
[  331.945626][ T1830] FS:  00007f5bddde9800(0000) GS:ffff8880768b7000(0000) knlGS:0000000000000000
[  331.946171][ T1830] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  331.946571][ T1830] CR2: 000055aba3af8018 CR3: 000000000a0ae002 CR4: 0000000000772ef0
[  331.947038][ T1830] PKRU: 55555554
[  331.947269][ T1830] Call Trace:
[  331.947502][ T1830]  <TASK>
[ 331.947659][ T1830] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 331.948251][ T1830] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 331.948568][ T1830] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 331.949345][ T1830] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 331.953594][ T1830] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 331.953921][ T1830] netif_set_mtu (net/core/dev.c:9652) 
[ 331.954235][ T1830] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 331.954551][ T1830] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 331.954858][ T1830] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 331.955989][ T1830] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 331.956300][ T1830] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 331.956635][ T1830] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 331.956951][ T1830] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 331.957327][ T1830] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 331.957639][ T1830] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 331.957954][ T1830] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 331.958268][ T1830] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 331.958570][ T1830] ? __dev_get_by_name (net/core/dev.c:865) 
[ 331.958881][ T1830] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 331.959626][ T1830] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 331.959947][ T1830] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 331.960253][ T1830] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 331.960784][ T1830] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 331.961552][ T1830] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 331.962095][ T1830] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 331.962410][ T1830] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 331.962711][ T1830] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 331.963248][ T1830] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 331.963551][ T1830] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 331.963860][ T1830] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 331.964181][ T1830] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 331.964491][ T1830] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 331.964800][ T1830] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 331.965115][ T1830] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 331.965436][ T1830] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 331.965764][ T1830] ? 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) 
[ 331.966090][ T1830] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 331.966413][ T1830] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 331.966723][ T1830] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 331.967042][ T1830] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 331.967353][ T1830] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 331.967658][ T1830] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 331.968689][ T1830] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 331.969012][ T1830] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 331.969318][ T1830] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 331.969719][ T1830] ___sys_sendmsg (net/socket.c:2670) 
[ 331.970037][ T1830] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 331.970361][ T1830] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 331.970668][ T1830] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 331.970980][ T1830] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 331.971293][ T1830] ? __handle_mm_fault (mm/memory.c:6212) 
[ 331.971602][ T1830] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 331.971918][ T1830] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 331.972247][ T1830] __sys_sendmsg (net/socket.c:2700) 
[ 331.973436][ T1830] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 331.973749][ T1830] ? 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) 
[ 331.974071][ T1830] ? 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) 
[ 331.974378][ T1830] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 331.974689][ T1830] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 331.975007][ T1830] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  331.975388][ T1830] RIP: 0033:0x7f5bddfb61e7
[ 331.975715][ T1830] Code: Unable to access opcode bytes at 0x7f5bddfb61bd.

Code starting with the faulting instruction
===========================================
[  331.976118][ T1830] RSP: 002b:00007ffc1377a4f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  331.976585][ T1830] RAX: ffffffffffffffda RBX: 00007ffc1377ac20 RCX: 00007f5bddfb61e7
[  331.977052][ T1830] RDX: 0000000000000000 RSI: 00007ffc1377a560 RDI: 0000000000000005
[  331.977515][ T1830] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[  331.977977][ T1830] R10: 00007f5bddeae6f8 R11: 0000000000000246 R12: 00007ffc1377ac40
[  331.978658][ T1830] R13: 00000000686e399c R14: 0000000000499600 R15: 00007ffc1377a64c
| [  334.846846][ T1862] ------------[ cut here ]------------
| [ 334.847207][ T1862] WARNING: CPU: 2 PID: 1862 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) 
| [  334.847833][ T1862] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall ip_gre gre sch_ingress vrf veth
| [  334.849288][ T1862] Tainted: [W]=WARN
[  334.849564][ T1862] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 334.849988][ T1862] 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) 
[ 334.850321][ T1862] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  334.851488][ T1862] RSP: 0018:ffffc900004e6ef0 EFLAGS: 00010246
[  334.851904][ T1862] RAX: 0000000000000000 RBX: ffff888009982000 RCX: 0000000000000001
[  334.852385][ T1862] RDX: 0000000000000000 RSI: ffffffffb6a9b941 RDI: ffffffffb62555e0
[  334.852854][ T1862] RBP: ffffc900004e6fe0 R08: 0000000000000000 R09: 0000000000000000
[  334.853521][ T1862] R10: ffffc900004e7010 R11: ffffffffb78a8918 R12: 1ffff9200009cde2
[  334.854008][ T1862] R13: 00000000000005dc R14: ffffc900004e7010 R15: ffff888009982f08
[  334.854480][ T1862] FS:  00007efd17ebf800(0000) GS:ffff8880769b7000(0000) knlGS:0000000000000000
[  334.855035][ T1862] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  334.855431][ T1862] CR2: 00005569ed1d5ea8 CR3: 0000000005252002 CR4: 0000000000772ef0
[  334.856018][ T1862] PKRU: 55555554
[  334.856263][ T1862] Call Trace:
[  334.856516][ T1862]  <TASK>
[ 334.856686][ T1862] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 334.857021][ T1862] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 334.857349][ T1862] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 334.857669][ T1862] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 334.858073][ T1862] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 334.858395][ T1862] netif_set_mtu (net/core/dev.c:9652) 
[ 334.858717][ T1862] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 334.859057][ T1862] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 334.859494][ T1862] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 334.859740][ T1862] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 334.860174][ T1862] br_add_if (net/bridge/br_if.c:697) bridge 
[ 334.860533][ T1862] do_set_master (net/core/rtnetlink.c:2948) 
[ 334.860858][ T1862] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 334.861192][ T1862] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 334.861592][ T1862] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 334.861919][ T1862] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 334.862234][ T1862] ? __kernel_text_address (kernel/extable.c:79) 
[ 334.862556][ T1862] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 334.862887][ T1862] ? __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) 
[ 334.863214][ T1862] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 334.863603][ T1862] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 334.863933][ T1862] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 334.864250][ T1862] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 334.864568][ T1862] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 334.864899][ T1862] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 334.865219][ T1862] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 334.865537][ T1862] ? __create_object (mm/kmemleak.c:771) 
[ 334.865876][ T1862] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 334.866196][ T1862] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 334.866531][ T1862] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 334.866933][ T1862] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 334.867256][ T1862] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 334.867580][ T1862] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 334.867910][ T1862] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 334.868242][ T1862] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 334.868561][ T1862] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 334.868889][ T1862] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 334.869211][ T1862] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 334.869527][ T1862] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 334.869848][ T1862] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 334.870178][ T1862] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 334.870505][ T1862] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 334.870826][ T1862] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 334.871156][ T1862] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 334.871485][ T1862] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 334.871803][ T1862] ? 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) 
[ 334.872131][ T1862] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 334.872454][ T1862] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 334.872767][ T1862] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 334.873110][ T1862] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 334.873431][ T1862] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 334.873749][ T1862] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 334.874081][ T1862] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 334.874403][ T1862] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 334.874719][ T1862] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 334.875131][ T1862] ___sys_sendmsg (net/socket.c:2670) 
[ 334.875449][ T1862] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 334.875768][ T1862] ? __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) 
[ 334.876179][ T1862] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 334.876509][ T1862] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 334.876829][ T1862] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 334.877162][ T1862] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 334.877478][ T1862] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 334.877801][ T1862] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 334.878137][ T1862] __sys_sendmsg (net/socket.c:2700) 
[ 334.878453][ T1862] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 334.878839][ T1862] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 334.879176][ T1862] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 334.879493][ T1862] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 334.879810][ T1862] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  334.880219][ T1862] RIP: 0033:0x7efd1808c1e7
[ 334.880551][ T1862] 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)
[  334.881720][ T1862] RSP: 002b:00007ffe72148f48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  334.882204][ T1862] RAX: ffffffffffffffda RBX: 00007ffe72149670 RCX: 00007efd1808c1e7
[  334.882681][ T1862] RDX: 0000000000000000 RSI: 00007ffe72148fb0 RDI: 0000000000000005
[  334.883156][ T1862] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  334.883622][ T1862] R10: 000000000b865910 R11: 0000000000000246 R12: 0000000000000004
[  334.884098][ T1862] R13: 00000000686e399f R14: 0000000000499600 R15: 0000000000000000
| [  335.144779][ T1864] ------------[ cut here ]------------
| [ 335.145218][ T1864] WARNING: CPU: 3 PID: 1864 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) 
| [  335.145855][ T1864] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall ip_gre gre sch_ingress vrf veth
| [  335.147297][ T1864] Tainted: [W]=WARN
[  335.147550][ T1864] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 335.147963][ T1864] 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) 
[ 335.148295][ T1864] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  335.149462][ T1864] RSP: 0018:ffffc90000626ef0 EFLAGS: 00010246
[  335.149878][ T1864] RAX: 0000000000000000 RBX: ffff888009982000 RCX: 0000000000000001
[  335.150365][ T1864] RDX: 0000000000000000 RSI: ffffffffb6a9b941 RDI: ffffffffb62555e0
[  335.150851][ T1864] RBP: ffffc90000626fe0 R08: 0000000000000000 R09: 0000000000000000
[  335.151349][ T1864] R10: ffffc90000627010 R11: ffffffffb78a8918 R12: 1ffff920000c4de2
[  335.151840][ T1864] R13: 00000000000005dc R14: ffffc90000627010 R15: ffff888009982f08
[  335.152481][ T1864] FS:  00007f05d93c3800(0000) GS:ffff888076a37000(0000) knlGS:0000000000000000
[  335.153197][ T1864] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  335.153601][ T1864] CR2: 00000000004e5ab0 CR3: 000000000b9a6003 CR4: 0000000000772ef0
[  335.154167][ T1864] PKRU: 55555554
[  335.154408][ T1864] Call Trace:
[  335.154648][ T1864]  <TASK>
[ 335.154815][ T1864] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 335.155157][ T1864] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 335.155489][ T1864] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 335.155814][ T1864] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 335.156226][ T1864] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 335.156571][ T1864] netif_set_mtu (net/core/dev.c:9652) 
[ 335.156926][ T1864] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 335.157256][ T1864] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 335.157678][ T1864] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 335.157918][ T1864] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 335.158331][ T1864] br_add_if (net/bridge/br_if.c:697) bridge 
[ 335.158677][ T1864] do_set_master (net/core/rtnetlink.c:2948) 
[ 335.159017][ T1864] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 335.159330][ T1864] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 335.159715][ T1864] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 335.160036][ T1864] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 335.160340][ T1864] ? __kernel_text_address (kernel/extable.c:79) 
[ 335.160648][ T1864] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 335.160979][ T1864] ? __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) 
[ 335.161297][ T1864] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 335.161675][ T1864] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 335.161993][ T1864] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 335.162298][ T1864] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 335.162605][ T1864] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 335.162918][ T1864] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 335.163225][ T1864] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 335.163531][ T1864] ? __create_object (mm/kmemleak.c:771) 
[ 335.163840][ T1864] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 335.164155][ T1864] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 335.164465][ T1864] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 335.164843][ T1864] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 335.165163][ T1864] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 335.165478][ T1864] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 335.165781][ T1864] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 335.166106][ T1864] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 335.166423][ T1864] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 335.166726][ T1864] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 335.167043][ T1864] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 335.167345][ T1864] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 335.167651][ T1864] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 335.167968][ T1864] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 335.168277][ T1864] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 335.168588][ T1864] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 335.168901][ T1864] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 335.169216][ T1864] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 335.169519][ T1864] ? 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) 
[ 335.169824][ T1864] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 335.170140][ T1864] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 335.170448][ T1864] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 335.170761][ T1864] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 335.171081][ T1864] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 335.171387][ T1864] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 335.171697][ T1864] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 335.172013][ T1864] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 335.172316][ T1864] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 335.172707][ T1864] ___sys_sendmsg (net/socket.c:2670) 
[ 335.173025][ T1864] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 335.173328][ T1864] ? __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) 
[ 335.173707][ T1864] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 335.174023][ T1864] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 335.174333][ T1864] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 335.174642][ T1864] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 335.174958][ T1864] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 335.175265][ T1864] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 335.175575][ T1864] __sys_sendmsg (net/socket.c:2700) 
[ 335.175890][ T1864] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 335.176271][ T1864] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 335.176597][ T1864] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 335.176909][ T1864] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 335.177215][ T1864] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  335.177594][ T1864] RIP: 0033:0x7f05d95901e7
[ 335.177918][ T1864] 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)
[  335.179014][ T1864] RSP: 002b:00007ffe43fa0e98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  335.179474][ T1864] RAX: ffffffffffffffda RBX: 00007ffe43fa15c0 RCX: 00007f05d95901e7
[  335.179944][ T1864] RDX: 0000000000000000 RSI: 00007ffe43fa0f00 RDI: 0000000000000005
[  335.180406][ T1864] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  335.180858][ T1864] R10: 00000000301da910 R11: 0000000000000246 R12: 0000000000000004
[  335.181325][ T1864] R13: 00000000686e399f R14: 0000000000499600 R15: 0000000000000000
| [  335.576026][ T1867] ------------[ cut here ]------------
| [ 335.576394][ T1867] WARNING: CPU: 1 PID: 1867 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) 
| [  335.577230][ T1867] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall ip_gre gre sch_ingress vrf veth
| [  335.578799][ T1867] Tainted: [W]=WARN
[  335.579187][ T1867] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 335.579574][ T1867] 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) 
[ 335.580063][ T1867] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  335.581365][ T1867] RSP: 0018:ffffc900005c7000 EFLAGS: 00010246
[  335.581770][ T1867] RAX: 0000000000000000 RBX: ffff888009acc000 RCX: 0000000000000001
[  335.582420][ T1867] RDX: 0000000000000000 RSI: ffffffffb6a9b941 RDI: ffffffffb62555e0
[  335.583041][ T1867] RBP: ffffc900005c70e8 R08: ffff888009acc218 R09: 0000000000000000
[  335.583504][ T1867] R10: ffffc900005c7118 R11: ffffffffb6f79160 R12: 1ffff920000b8e04
[  335.584048][ T1867] R13: 00000000000005b6 R14: ffffc900005c7118 R15: ffff888009acc218
[  335.584506][ T1867] FS:  00007f246a38b800(0000) GS:ffff888076937000(0000) knlGS:0000000000000000
[  335.585057][ T1867] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  335.585439][ T1867] CR2: 0000000000436890 CR3: 0000000004f27002 CR4: 0000000000772ef0
[  335.585900][ T1867] PKRU: 55555554
[  335.586129][ T1867] Call Trace:
[  335.586367][ T1867]  <TASK>
[ 335.586535][ T1867] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 335.586940][ T1867] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 335.587259][ T1867] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 335.587570][ T1867] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 335.587908][ T1867] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 335.588227][ T1867] netif_set_mtu (net/core/dev.c:9652) 
[ 335.588531][ T1867] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 335.588852][ T1867] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 335.589169][ T1867] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 335.589400][ T1867] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 335.589706][ T1867] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 335.590026][ T1867] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 335.590339][ T1867] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 335.590719][ T1867] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 335.591049][ T1867] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 335.591359][ T1867] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 335.591665][ T1867] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 335.591989][ T1867] ? __dev_get_by_name (net/core/dev.c:865) 
[ 335.592305][ T1867] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 335.592609][ T1867] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 335.592942][ T1867] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 335.593252][ T1867] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 335.593566][ T1867] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 335.593911][ T1867] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 335.594222][ T1867] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 335.594537][ T1867] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 335.594847][ T1867] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 335.595217][ T1867] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 335.595555][ T1867] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 335.595900][ T1867] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 335.596233][ T1867] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 335.596585][ T1867] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 335.596925][ T1867] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 335.597248][ T1867] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 335.597589][ T1867] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 335.597921][ T1867] ? 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) 
[ 335.598250][ T1867] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 335.598583][ T1867] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 335.598915][ T1867] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 335.599246][ T1867] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 335.599570][ T1867] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 335.599914][ T1867] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 335.600246][ T1867] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 335.600572][ T1867] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 335.600939][ T1867] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 335.601358][ T1867] ___sys_sendmsg (net/socket.c:2670) 
[ 335.601692][ T1867] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 335.602038][ T1867] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 335.602377][ T1867] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 335.602708][ T1867] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 335.603051][ T1867] ? __handle_mm_fault (mm/memory.c:6212) 
[ 335.603389][ T1867] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 335.603714][ T1867] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 335.604064][ T1867] __sys_sendmsg (net/socket.c:2700) 
[ 335.604388][ T1867] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 335.604710][ T1867] ? 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) 
[ 335.605089][ T1867] ? 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) 
[ 335.605436][ T1867] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 335.605770][ T1867] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 335.606131][ T1867] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  335.606548][ T1867] RIP: 0033:0x7f246a5581e7
[ 335.606907][ T1867] 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)
[  335.608084][ T1867] RSP: 002b:00007fff1d764168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  335.608596][ T1867] RAX: ffffffffffffffda RBX: 00007fff1d764890 RCX: 00007f246a5581e7
[  335.609075][ T1867] RDX: 0000000000000000 RSI: 00007fff1d7641d0 RDI: 0000000000000005
[  335.609527][ T1867] RBP: 0000000000000008 R08: 00000000000000ac R09: 0000000000000000
[  335.609996][ T1867] R10: 00007f246a4506f8 R11: 0000000000000246 R12: 00007fff1d7648b0
[  335.610457][ T1867] R13: 00000000686e39a0 R14: 0000000000499600 R15: 00007fff1d7642b8
| [  441.523126][ T2307] ------------[ cut here ]------------
| [ 441.523611][ T2307] WARNING: CPU: 2 PID: 2307 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) 
| [  441.524274][ T2307] Modules linked in: act_mirred cls_flower bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall ip_gre gre sch_ingress vrf veth
| [  441.526385][ T2307] Tainted: [W]=WARN
[  441.526741][ T2307] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 441.527154][ T2307] 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) 
[ 441.527519][ T2307] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  441.528889][ T2307] RSP: 0018:ffffc900012df000 EFLAGS: 00010246
[  441.529341][ T2307] RAX: 0000000000000000 RBX: ffff88800f1fc000 RCX: 0000000000000001
[  441.529827][ T2307] RDX: 0000000000000000 RSI: ffffffffb6a9b941 RDI: ffffffffb62555e0
[  441.530478][ T2307] RBP: ffffc900012df0e8 R08: ffff88800f1fc218 R09: 0000000000000000
[  441.531029][ T2307] R10: ffffc900012df118 R11: ffffffffb36910a8 R12: 1ffff9200025be04
[  441.531538][ T2307] R13: 00000000000005b6 R14: ffffc900012df118 R15: ffff88800f1fc218
[  441.532160][ T2307] FS:  00007f46fa39c800(0000) GS:ffff8880769b7000(0000) knlGS:0000000000000000
[  441.532827][ T2307] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  441.533248][ T2307] CR2: 0000000000436890 CR3: 000000000621f001 CR4: 0000000000772ef0
[  441.533812][ T2307] PKRU: 55555554
[  441.534085][ T2307] Call Trace:
[  441.534341][ T2307]  <TASK>
[ 441.534510][ T2307] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 441.534992][ T2307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 441.535423][ T2307] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 441.535751][ T2307] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 441.536192][ T2307] netif_set_mtu (net/core/dev.c:9652) 
[ 441.536582][ T2307] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 441.536924][ T2307] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 441.537390][ T2307] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 441.537703][ T2307] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 441.538042][ T2307] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 441.538466][ T2307] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 441.538791][ T2307] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 441.539314][ T2307] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 441.539653][ T2307] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 441.539980][ T2307] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 441.540374][ T2307] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 441.540732][ T2307] ? __dev_get_by_name (net/core/dev.c:865) 
[ 441.541145][ T2307] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 441.541494][ T2307] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 441.541846][ T2307] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 441.542275][ T2307] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 441.542604][ T2307] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 441.542944][ T2307] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 441.543306][ T2307] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 441.543725][ T2307] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 441.544126][ T2307] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 441.544667][ T2307] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 441.545025][ T2307] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 441.545361][ T2307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 441.545682][ T2307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 441.546129][ T2307] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 441.546615][ T2307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 441.546959][ T2307] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 441.547356][ T2307] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 441.547719][ T2307] ? 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) 
[ 441.548053][ T2307] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 441.548398][ T2307] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 441.548713][ T2307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 441.549054][ T2307] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 441.549509][ T2307] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 441.549835][ T2307] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 441.550257][ T2307] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 441.550598][ T2307] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 441.550942][ T2307] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 441.551444][ T2307] ___sys_sendmsg (net/socket.c:2670) 
[ 441.551790][ T2307] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 441.552199][ T2307] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 441.552734][ T2307] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 441.553066][ T2307] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 441.553405][ T2307] ? __handle_mm_fault (mm/memory.c:6212) 
[ 441.553725][ T2307] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 441.554052][ T2307] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 441.554500][ T2307] __sys_sendmsg (net/socket.c:2700) 
[ 441.554821][ T2307] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 441.555217][ T2307] ? 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) 
[ 441.555578][ T2307] ? 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) 
[ 441.555915][ T2307] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 441.556251][ T2307] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 441.556587][ T2307] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  441.557091][ T2307] RIP: 0033:0x7f46fa5691e7
[ 441.557436][ T2307] 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)
[  441.558699][ T2307] RSP: 002b:00007fff7dc57528 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  441.559222][ T2307] RAX: ffffffffffffffda RBX: 00007fff7dc57c50 RCX: 00007f46fa5691e7
[  441.559716][ T2307] RDX: 0000000000000000 RSI: 00007fff7dc57590 RDI: 0000000000000005
[  441.560200][ T2307] RBP: 0000000000000008 R08: 00000000000000ac R09: 0000000000000000
[  441.560960][ T2307] R10: 00007f46fa4616f8 R11: 0000000000000246 R12: 00007fff7dc57c70


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