======================================
| [  172.490871][ T2241] ip_gre: GRE over IPv4 tunneling driver
| [  172.622695][ T2240] ------------[ cut here ]------------
| [ 172.623293][ T2240] WARNING: CPU: 0 PID: 2240 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) 
| [  172.623941][ T2240] Modules linked in: ip_gre gre unix_diag cls_bpf vxlan sch_etf act_mirred cls_flower sch_ingress sch_fq [last unloaded: test_bpf]
[  172.625356][ T2240] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 172.625747][ T2240] 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) 
[ 172.626073][ T2240] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  172.627336][ T2240] RSP: 0000:ffffc90000687000 EFLAGS: 00010246
[  172.627737][ T2240] RAX: 0000000000000000 RBX: ffff888009779000 RCX: 0000000000000001
[  172.628207][ T2240] RDX: 0000000000000000 RSI: ffffffff93f10759 RDI: ffffffff93658280
[  172.628667][ T2240] RBP: ffffc900006870e8 R08: ffff888009779218 R09: 0000000000000000
[  172.629127][ T2240] R10: ffffc90000687118 R11: ffff888013bd45f0 R12: 1ffff920000d0e04
[  172.629592][ T2240] R13: 00000000000005b6 R14: ffffc90000687118 R15: ffff888009779218
[  172.630062][ T2240] FS:  00007fbd1a0ae800(0000) GS:ffff8880d6999000(0000) knlGS:0000000000000000
[  172.630596][ T2240] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  172.630993][ T2240] CR2: 00007fa871033370 CR3: 000000000f8c4003 CR4: 0000000000772ef0
[  172.631455][ T2240] PKRU: 55555554
[  172.631690][ T2240] Call Trace:
[  172.631929][ T2240]  <TASK>
[ 172.632087][ T2240] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 172.632480][ T2240] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 172.632800][ T2240] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 172.633115][ T2240] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 172.633440][ T2240] netif_set_mtu (net/core/dev.c:9652) 
[ 172.633778][ T2240] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 172.634108][ T2240] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 172.634418][ T2240] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 172.634659][ T2240] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 172.634980][ T2240] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 172.635297][ T2240] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 172.635608][ T2240] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 172.636242][ T2240] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 172.636565][ T2240] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 172.636874][ T2240] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 172.637194][ T2240] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 172.637496][ T2240] ? __dev_get_by_name (net/core/dev.c:865) 
[ 172.637806][ T2240] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 172.638116][ T2240] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 172.638433][ T2240] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 172.638966][ T2240] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 172.639278][ T2240] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 172.639595][ T2240] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 172.640136][ T2240] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 172.640453][ T2240] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 172.640754][ T2240] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 172.641067][ T2240] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 172.641380][ T2240] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 172.641734][ T2240] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 172.642059][ T2240] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 172.642590][ T2240] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 172.642909][ T2240] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 172.643217][ T2240] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 172.643557][ T2240] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 172.643865][ T2240] ? 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) 
[ 172.644180][ T2240] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 172.644723][ T2240] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 172.645034][ T2240] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 172.645345][ T2240] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 172.645650][ T2240] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 172.646181][ T2240] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 172.646723][ T2240] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 172.647271][ T2240] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 172.647580][ T2240] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 172.647983][ T2240] ___sys_sendmsg (net/socket.c:2670) 
[ 172.648292][ T2240] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 172.648594][ T2240] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 172.648916][ T2240] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 172.649225][ T2240] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 172.649538][ T2240] ? __handle_mm_fault (mm/memory.c:6212) 
[ 172.649843][ T2240] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 172.650150][ T2240] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 172.650701][ T2240] __sys_sendmsg (net/socket.c:2700) 
[ 172.651012][ T2240] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 172.651320][ T2240] ? 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) 
[ 172.651641][ T2240] ? 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) 
[ 172.652176][ T2240] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 172.652490][ T2240] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 172.652796][ T2240] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  172.653182][ T2240] RIP: 0033:0x7fbd1a27b1e7
[ 172.653971][ T2240] Code: Unable to access opcode bytes at 0x7fbd1a27b1bd.

Code starting with the faulting instruction
===========================================
[  172.654380][ T2240] RSP: 002b:00007fff3a8f2de8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  172.654850][ T2240] RAX: ffffffffffffffda RBX: 00007fff3a8f3520 RCX: 00007fbd1a27b1e7
[  172.655315][ T2240] RDX: 0000000000000000 RSI: 00007fff3a8f2e50 RDI: 0000000000000005
[  172.655782][ T2240] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[  172.656250][ T2240] R10: 00007fbd1a1736f8 R11: 0000000000000246 R12: 00007fff3a8f3540
[  172.656715][ T2240] R13: 00000000686e25f5 R14: 0000000000499600 R15: 00007fff3a8f2f3c
| [  172.844208][ T2248] ------------[ cut here ]------------
| [ 172.844545][ T2248] WARNING: CPU: 0 PID: 2248 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) 
| [  172.845178][ T2248] Modules linked in: ip_gre gre unix_diag cls_bpf vxlan sch_etf act_mirred cls_flower sch_ingress sch_fq [last unloaded: test_bpf]
| [  172.846790][ T2248] Tainted: [W]=WARN
[  172.847033][ T2248] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 172.847414][ T2248] 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) 
[ 172.847730][ T2248] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  172.848836][ T2248] RSP: 0018:ffffc900005d7000 EFLAGS: 00010246
[  172.849231][ T2248] RAX: 0000000000000000 RBX: ffff888005181000 RCX: 0000000000000001
[  172.849735][ T2248] RDX: 0000000000000000 RSI: ffffffff93f10759 RDI: ffffffff93658280
[  172.850200][ T2248] RBP: ffffc900005d70e8 R08: ffff888005181218 R09: 0000000000000000
[  172.850664][ T2248] R10: ffffc900005d7118 R11: ffff88800e6415f0 R12: 1ffff920000bae04
[  172.851129][ T2248] R13: 00000000000005b6 R14: ffffc900005d7118 R15: ffff888005181218
[  172.851585][ T2248] FS:  00007f162ce77800(0000) GS:ffff8880d6999000(0000) knlGS:0000000000000000
[  172.852124][ T2248] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  172.852510][ T2248] CR2: 0000000000436890 CR3: 000000001400e004 CR4: 0000000000772ef0
[  172.852981][ T2248] PKRU: 55555554
[  172.853212][ T2248] Call Trace:
[  172.853438][ T2248]  <TASK>
[ 172.853593][ T2248] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 172.853982][ T2248] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 172.854292][ T2248] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 172.854604][ T2248] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 172.854941][ T2248] netif_set_mtu (net/core/dev.c:9652) 
[ 172.855244][ T2248] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 172.855566][ T2248] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 172.855868][ T2248] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 172.856108][ T2248] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 172.856422][ T2248] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 172.856735][ T2248] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 172.857063][ T2248] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 172.857450][ T2248] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 172.857767][ T2248] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 172.858082][ T2248] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 172.858394][ T2248] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 172.858705][ T2248] ? __dev_get_by_name (net/core/dev.c:865) 
[ 172.859021][ T2248] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 172.859328][ T2248] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 172.859639][ T2248] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 172.859954][ T2248] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 172.860263][ T2248] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 172.860579][ T2248] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 172.860903][ T2248] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 172.861220][ T2248] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 172.861524][ T2248] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 172.861834][ T2248] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 172.862144][ T2248] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 172.862450][ T2248] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 172.862765][ T2248] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 172.863091][ T2248] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 172.863416][ T2248] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 172.863720][ T2248] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 172.864047][ T2248] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 172.864356][ T2248] ? 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) 
[ 172.864666][ T2248] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 172.864985][ T2248] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 172.865289][ T2248] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 172.865602][ T2248] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 172.865918][ T2248] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 172.866231][ T2248] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 172.866544][ T2248] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 172.866850][ T2248] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 172.867162][ T2248] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 172.867547][ T2248] ? debug_object_activate (lib/debugobjects.c:837) 
[ 172.867853][ T2248] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 172.868172][ T2248] ___sys_sendmsg (net/socket.c:2670) 
[ 172.868480][ T2248] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 172.868791][ T2248] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 172.869109][ T2248] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 172.869411][ T2248] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 172.869718][ T2248] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 172.870027][ T2248] ? trace_rcu_future_grace_period (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745 ./include/trace/events/rcu.h:107) 
[ 172.870413][ T2248] ? rcu_start_this_gp (kernel/rcu/tree.c:1047) 
[ 172.870726][ T2248] ? trace_rcu_quiescent_state_report (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745 ./include/trace/events/rcu.h:368) 
[ 172.871115][ T2248] __sys_sendmsg (net/socket.c:2700) 
[ 172.871425][ T2248] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 172.871728][ T2248] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 172.872038][ T2248] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 172.872351][ T2248] ? handle_softirqs (./arch/x86/include/asm/preempt.h:27 kernel/softirq.c:426 kernel/softirq.c:607) 
[ 172.872657][ T2248] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 172.872971][ T2248] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 172.873287][ T2248] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  172.873665][ T2248] RIP: 0033:0x7f162d0441e7
[ 172.873987][ T2248] 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)
[  172.875091][ T2248] RSP: 002b:00007ffc654b4318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  172.875554][ T2248] RAX: ffffffffffffffda RBX: 00007ffc654b4a50 RCX: 00007f162d0441e7
[  172.876244][ T2248] RDX: 0000000000000000 RSI: 00007ffc654b4380 RDI: 0000000000000005
[  172.876700][ T2248] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[  172.877164][ T2248] R10: 00007f162cf3c6f8 R11: 0000000000000246 R12: 00007ffc654b4a70
[  172.877619][ T2248] R13: 00000000686e25f5 R14: 0000000000499600 R15: 00007ffc654b446c
| [  176.271667][ T2292] ------------[ cut here ]------------
| [ 176.272051][ T2292] WARNING: CPU: 3 PID: 2292 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) 
| [  176.272687][ T2292] Modules linked in: ip_gre gre unix_diag cls_bpf vxlan sch_etf act_mirred cls_flower sch_ingress sch_fq [last unloaded: test_bpf]
| [  176.274189][ T2292] Tainted: [W]=WARN
[  176.274438][ T2292] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 176.274851][ T2292] 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) 
[ 176.275184][ T2292] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  176.276346][ T2292] RSP: 0018:ffffc900006c7000 EFLAGS: 00010246
[  176.276758][ T2292] RAX: 0000000000000000 RBX: ffff888013a5c000 RCX: 0000000000000001
[  176.277250][ T2292] RDX: 0000000000000000 RSI: ffffffff93f10759 RDI: ffffffff93658280
[  176.277734][ T2292] RBP: ffffc900006c70e8 R08: ffff888013a5c218 R09: 0000000000000000
[  176.278246][ T2292] R10: ffffc900006c7118 R11: ffff88800c9cc5f0 R12: 1ffff920000d8e04
[  176.278740][ T2292] R13: 00000000000005b6 R14: ffffc900006c7118 R15: ffff888013a5c218
[  176.279233][ T2292] FS:  00007fc9c1b30800(0000) GS:ffff8880d6b19000(0000) knlGS:0000000000000000
[  176.279794][ T2292] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  176.280212][ T2292] CR2: 00007fc9c1c30130 CR3: 000000000b856006 CR4: 0000000000772ef0
[  176.280693][ T2292] PKRU: 55555554
[  176.280941][ T2292] Call Trace:
[  176.281189][ T2292]  <TASK>
[ 176.281350][ T2292] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 176.281746][ T2292] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 176.282075][ T2292] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 176.282402][ T2292] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 176.282737][ T2292] netif_set_mtu (net/core/dev.c:9652) 
[ 176.283063][ T2292] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 176.283396][ T2292] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 176.283715][ T2292] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 176.283967][ T2292] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 176.284290][ T2292] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 176.284626][ T2292] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 176.284975][ T2292] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 176.285376][ T2292] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 176.285705][ T2292] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 176.286035][ T2292] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 176.286359][ T2292] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 176.286677][ T2292] ? __dev_get_by_name (net/core/dev.c:865) 
[ 176.287006][ T2292] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 176.287325][ T2292] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 176.287650][ T2292] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 176.287973][ T2292] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 176.288295][ T2292] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 176.288625][ T2292] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 176.288962][ T2292] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 176.289297][ T2292] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 176.289619][ T2292] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 176.289951][ T2292] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 176.290271][ T2292] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 176.290599][ T2292] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 176.290929][ T2292] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 176.291256][ T2292] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 176.291574][ T2292] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 176.291904][ T2292] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 176.292243][ T2292] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 176.292568][ T2292] ? 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) 
[ 176.292901][ T2292] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 176.293226][ T2292] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 176.293542][ T2292] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 176.293869][ T2292] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 176.294198][ T2292] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 176.294533][ T2292] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 176.294871][ T2292] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 176.295204][ T2292] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 176.295524][ T2292] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 176.295945][ T2292] ___sys_sendmsg (net/socket.c:2670) 
[ 176.296266][ T2292] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 176.296591][ T2292] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 176.296926][ T2292] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 176.297244][ T2292] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 176.297568][ T2292] ? __handle_mm_fault (mm/memory.c:6212) 
[ 176.297896][ T2292] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 176.298213][ T2292] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 176.298550][ T2292] __sys_sendmsg (net/socket.c:2700) 
[ 176.298875][ T2292] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 176.299202][ T2292] ? 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) 
[ 176.299529][ T2292] ? 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) 
[ 176.299850][ T2292] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 176.300185][ T2292] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 176.300510][ T2292] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  176.300915][ T2292] RIP: 0033:0x7fc9c1cfd1e7
[ 176.301249][ T2292] 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)
[  176.302400][ T2292] RSP: 002b:00007ffda080df28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  176.302882][ T2292] RAX: ffffffffffffffda RBX: 00007ffda080e660 RCX: 00007fc9c1cfd1e7
[  176.303373][ T2292] RDX: 0000000000000000 RSI: 00007ffda080df90 RDI: 0000000000000005
[  176.303851][ T2292] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[  176.304336][ T2292] R10: 00007fc9c1bf56f8 R11: 0000000000000246 R12: 00007ffda080e680
[  176.304825][ T2292] R13: 00000000686e25f8 R14: 0000000000499600 R15: 00007ffda080e07c
| [  176.426531][ T2293] ------------[ cut here ]------------
| [ 176.426914][ T2293] WARNING: CPU: 0 PID: 2293 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) 
| [  176.427551][ T2293] Modules linked in: ip_gre gre unix_diag cls_bpf vxlan sch_etf act_mirred cls_flower sch_ingress sch_fq [last unloaded: test_bpf]
| [  176.429043][ T2293] Tainted: [W]=WARN
[  176.429288][ T2293] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 176.429689][ T2293] 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) 
[ 176.430024][ T2293] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  176.431184][ T2293] RSP: 0018:ffffc900006c7000 EFLAGS: 00010246
[  176.431597][ T2293] RAX: 0000000000000000 RBX: ffff88800bcfc000 RCX: 0000000000000001
[  176.432084][ T2293] RDX: 0000000000000000 RSI: ffffffff93f10759 RDI: ffffffff93658280
[  176.432565][ T2293] RBP: ffffc900006c70e8 R08: ffff88800bcfc218 R09: 0000000000000000
[  176.433052][ T2293] R10: ffffc900006c7118 R11: ffff88800a7615f0 R12: 1ffff920000d8e04
[  176.433535][ T2293] R13: 00000000000005b6 R14: ffffc900006c7118 R15: ffff88800bcfc218
[  176.434026][ T2293] FS:  00007f3a921a8800(0000) GS:ffff8880d6999000(0000) knlGS:0000000000000000
[  176.434586][ T2293] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  176.435004][ T2293] CR2: 0000000000436890 CR3: 000000000f8c5005 CR4: 0000000000772ef0
[  176.435491][ T2293] PKRU: 55555554
[  176.435729][ T2293] Call Trace:
[  176.435976][ T2293]  <TASK>
[ 176.436141][ T2293] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 176.436540][ T2293] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 176.436863][ T2293] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 176.437195][ T2293] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 176.437526][ T2293] netif_set_mtu (net/core/dev.c:9652) 
[ 176.437852][ T2293] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 176.438193][ T2293] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 176.438516][ T2293] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 176.438760][ T2293] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 176.439087][ T2293] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 176.439415][ T2293] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 176.439742][ T2293] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 176.440189][ T2293] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 176.440522][ T2293] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 176.440847][ T2293] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 176.441179][ T2293] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 176.441497][ T2293] ? __dev_get_by_name (net/core/dev.c:865) 
[ 176.441823][ T2293] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 176.442151][ T2293] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 176.442483][ T2293] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 176.442801][ T2293] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 176.443134][ T2293] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 176.443467][ T2293] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 176.443796][ T2293] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 176.444158][ T2293] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 176.444476][ T2293] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 176.444818][ T2293] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 176.445159][ T2293] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 176.445481][ T2293] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 176.445804][ T2293] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 176.446137][ T2293] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 176.446460][ T2293] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 176.446780][ T2293] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 176.447123][ T2293] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 176.447448][ T2293] ? 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) 
[ 176.447767][ T2293] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 176.448098][ T2293] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 176.448418][ T2293] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 176.448744][ T2293] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 176.449090][ T2293] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 176.449414][ T2293] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 176.449751][ T2293] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 176.450082][ T2293] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 176.450415][ T2293] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 176.450827][ T2293] ___sys_sendmsg (net/socket.c:2670) 
[ 176.451158][ T2293] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 176.451480][ T2293] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 176.451808][ T2293] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 176.452141][ T2293] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 176.452465][ T2293] ? __handle_mm_fault (mm/memory.c:6212) 
[ 176.452786][ T2293] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 176.453113][ T2293] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 176.453452][ T2293] __sys_sendmsg (net/socket.c:2700) 
[ 176.453778][ T2293] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 176.454122][ T2293] ? 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) 
[ 176.454454][ T2293] ? 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) 
[ 176.454782][ T2293] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 176.455116][ T2293] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 176.455439][ T2293] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  176.455838][ T2293] RIP: 0033:0x7f3a923751e7
[ 176.456180][ T2293] 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)
[  176.457346][ T2293] RSP: 002b:00007fffe5390fc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  176.457834][ T2293] RAX: ffffffffffffffda RBX: 00007fffe5391700 RCX: 00007f3a923751e7
[  176.458355][ T2293] RDX: 0000000000000000 RSI: 00007fffe5391030 RDI: 0000000000000005
[  176.458844][ T2293] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[  176.459338][ T2293] R10: 00007f3a9226d6f8 R11: 0000000000000246 R12: 00007fffe5391720
[  176.459815][ T2293] R13: 00000000686e25f9 R14: 0000000000499600 R15: 00007fffe539111c
| [  180.532166][ T2342] ------------[ cut here ]------------
| [ 180.532552][ T2342] WARNING: CPU: 2 PID: 2342 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) 
| [  180.533608][ T2342] Modules linked in: ip_gre gre unix_diag cls_bpf vxlan sch_etf act_mirred cls_flower sch_ingress sch_fq [last unloaded: test_bpf]
| [  180.535165][ T2342] Tainted: [W]=WARN
[  180.535423][ T2342] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 180.535838][ T2342] 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) 
[ 180.536195][ T2342] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  180.537369][ T2342] RSP: 0018:ffffc90000a77000 EFLAGS: 00010246
[  180.537795][ T2342] RAX: 0000000000000000 RBX: ffff888009149000 RCX: 0000000000000001
[  180.538299][ T2342] RDX: 0000000000000000 RSI: ffffffff93f10759 RDI: ffffffff93658280
[  180.538790][ T2342] RBP: ffffc90000a770e8 R08: ffff888009149218 R09: 0000000000000000
[  180.539292][ T2342] R10: ffffc90000a77118 R11: ffff8880051845f0 R12: 1ffff9200014ee04
[  180.539789][ T2342] R13: 00000000000005b6 R14: ffffc90000a77118 R15: ffff888009149218
[  180.540290][ T2342] FS:  00007fe8a78c2800(0000) GS:ffff8880d6a99000(0000) knlGS:0000000000000000
[  180.540867][ T2342] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  180.541299][ T2342] CR2: 000000000049c120 CR3: 000000000d2b9001 CR4: 0000000000772ef0
[  180.541802][ T2342] PKRU: 55555554
[  180.542063][ T2342] Call Trace:
[  180.542315][ T2342]  <TASK>
[ 180.542490][ T2342] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 180.542911][ T2342] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 180.543244][ T2342] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 180.543582][ T2342] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 180.543932][ T2342] netif_set_mtu (net/core/dev.c:9652) 
[ 180.544264][ T2342] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 180.544611][ T2342] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 180.544976][ T2342] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 180.545232][ T2342] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 180.545567][ T2342] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 180.545930][ T2342] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 180.546268][ T2342] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 180.546679][ T2342] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 180.547039][ T2342] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 180.547373][ T2342] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 180.547710][ T2342] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 180.548051][ T2342] ? __dev_get_by_name (net/core/dev.c:865) 
[ 180.548385][ T2342] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 180.548716][ T2342] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 180.549064][ T2342] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 180.549401][ T2342] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 180.549741][ T2342] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 180.550101][ T2342] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 180.550434][ T2342] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 180.550779][ T2342] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 180.551125][ T2342] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 180.551461][ T2342] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 180.551794][ T2342] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 180.552144][ T2342] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 180.552481][ T2342] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 180.552816][ T2342] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 180.553161][ T2342] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 180.553497][ T2342] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 180.553840][ T2342] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 180.554182][ T2342] ? 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) 
[ 180.554520][ T2342] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 180.554865][ T2342] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 180.555210][ T2342] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 180.555551][ T2342] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 180.555895][ T2342] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 180.556232][ T2342] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 180.556572][ T2342] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 180.556932][ T2342] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 180.557265][ T2342] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 180.557675][ T2342] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 180.558040][ T2342] ___sys_sendmsg (net/socket.c:2670) 
[ 180.558364][ T2342] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 180.558684][ T2342] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 180.559009][ T2342] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 180.559333][ T2342] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 180.559661][ T2342] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 180.559988][ T2342] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 180.560306][ T2342] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 180.560630][ T2342] __sys_sendmsg (net/socket.c:2700) 
[ 180.560954][ T2342] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 180.561345][ T2342] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 180.561680][ T2342] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 180.562012][ T2342] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 180.562331][ T2342] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  180.562734][ T2342] RIP: 0033:0x7fe8a7a8f1e7
[ 180.563087][ T2342] 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)
[  180.564204][ T2342] RSP: 002b:00007ffc8c18f4f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  180.564689][ T2342] RAX: ffffffffffffffda RBX: 00007ffc8c18fc30 RCX: 00007fe8a7a8f1e7
[  180.565165][ T2342] RDX: 0000000000000000 RSI: 00007ffc8c18f560 RDI: 0000000000000005
[  180.565633][ T2342] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[  180.566116][ T2342] R10: 00007fe8a79876f8 R11: 0000000000000246 R12: 00007ffc8c18fc50
[  180.566585][ T2342] R13: 00000000686e25fd R14: 0000000000499600 R15: 00007ffc8c18f64c
| [  180.695924][ T2343] ------------[ cut here ]------------
| [ 180.696298][ T2343] WARNING: CPU: 3 PID: 2343 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) 
| [  180.696938][ T2343] Modules linked in: ip_gre gre unix_diag cls_bpf vxlan sch_etf act_mirred cls_flower sch_ingress sch_fq [last unloaded: test_bpf]
| [  180.698424][ T2343] Tainted: [W]=WARN
[  180.698678][ T2343] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 180.699082][ T2343] 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) 
[ 180.699416][ T2343] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  180.700561][ T2343] RSP: 0018:ffffc90000be7000 EFLAGS: 00010246
[  180.700995][ T2343] RAX: 0000000000000000 RBX: ffff888009779000 RCX: 0000000000000001
[  180.701478][ T2343] RDX: 0000000000000000 RSI: ffffffff93f10759 RDI: ffffffff93658280
[  180.701968][ T2343] RBP: ffffc90000be70e8 R08: ffff888009779218 R09: 0000000000000000
[  180.702447][ T2343] R10: ffffc90000be7118 R11: ffff888011ef45f0 R12: 1ffff9200017ce04
[  180.702931][ T2343] R13: 00000000000005b6 R14: ffffc90000be7118 R15: ffff888009779218
[  180.703412][ T2343] FS:  00007f50ecd4a800(0000) GS:ffff8880d6b19000(0000) knlGS:0000000000000000
[  180.703983][ T2343] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  180.704388][ T2343] CR2: 000000000049c120 CR3: 0000000014202004 CR4: 0000000000772ef0
[  180.704894][ T2343] PKRU: 55555554
[  180.705141][ T2343] Call Trace:
[  180.705378][ T2343]  <TASK>
[ 180.705539][ T2343] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 180.705943][ T2343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 180.706267][ T2343] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 180.706588][ T2343] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 180.706927][ T2343] netif_set_mtu (net/core/dev.c:9652) 
[ 180.707246][ T2343] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 180.707583][ T2343] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 180.707911][ T2343] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 180.708160][ T2343] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 180.708482][ T2343] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 180.708810][ T2343] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 180.709143][ T2343] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 180.709541][ T2343] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 180.709874][ T2343] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 180.710202][ T2343] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 180.710528][ T2343] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 180.710846][ T2343] ? __dev_get_by_name (net/core/dev.c:865) 
[ 180.711173][ T2343] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 180.711493][ T2343] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 180.711817][ T2343] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 180.712142][ T2343] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 180.712474][ T2343] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 180.712808][ T2343] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 180.713140][ T2343] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 180.713476][ T2343] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 180.713793][ T2343] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 180.714124][ T2343] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 180.714444][ T2343] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 180.714778][ T2343] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 180.715111][ T2343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 180.715437][ T2343] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 180.715758][ T2343] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 180.716087][ T2343] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 180.716420][ T2343] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 180.716738][ T2343] ? 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) 
[ 180.717073][ T2343] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 180.717396][ T2343] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 180.717717][ T2343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 180.718049][ T2343] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 180.718380][ T2343] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 180.718704][ T2343] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 180.719039][ T2343] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 180.719363][ T2343] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 180.719688][ T2343] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 180.720088][ T2343] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 180.720419][ T2343] ___sys_sendmsg (net/socket.c:2670) 
[ 180.720744][ T2343] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 180.721074][ T2343] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 180.721392][ T2343] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 180.721720][ T2343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 180.722057][ T2343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 180.722378][ T2343] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 180.722695][ T2343] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 180.723027][ T2343] __sys_sendmsg (net/socket.c:2700) 
[ 180.723343][ T2343] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 180.723735][ T2343] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 180.724075][ T2343] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 180.724399][ T2343] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 180.724727][ T2343] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  180.725128][ T2343] RIP: 0033:0x7f50ecf171e7
[ 180.725456][ T2343] 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)
[  180.726605][ T2343] RSP: 002b:00007ffef20d9768 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  180.727092][ T2343] RAX: ffffffffffffffda RBX: 00007ffef20d9ea0 RCX: 00007f50ecf171e7
[  180.727570][ T2343] RDX: 0000000000000000 RSI: 00007ffef20d97d0 RDI: 0000000000000005
[  180.728056][ T2343] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[  180.728535][ T2343] R10: 00007f50ece0f6f8 R11: 0000000000000246 R12: 00007ffef20d9ec0
[  180.729023][ T2343] R13: 00000000686e25fd R14: 0000000000499600 R15: 00007ffef20d98bc
| [  184.056633][ T2386] ------------[ cut here ]------------
| [ 184.057349][ T2386] WARNING: CPU: 2 PID: 2386 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) 
| [  184.057985][ T2386] Modules linked in: ip_gre gre unix_diag cls_bpf vxlan sch_etf act_mirred cls_flower sch_ingress sch_fq [last unloaded: test_bpf]
| [  184.059420][ T2386] Tainted: [W]=WARN
[  184.059664][ T2386] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 184.060077][ T2386] 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) 
[ 184.060402][ T2386] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  184.061513][ T2386] RSP: 0018:ffffc900014d7000 EFLAGS: 00010246
[  184.061937][ T2386] RAX: 0000000000000000 RBX: ffff88800d691000 RCX: 0000000000000001
[  184.062412][ T2386] RDX: 0000000000000000 RSI: ffffffff93f10759 RDI: ffffffff93658280
[  184.062893][ T2386] RBP: ffffc900014d70e8 R08: ffff88800d691218 R09: 0000000000000000
[  184.063361][ T2386] R10: ffffc900014d7118 R11: ffff8880083245f0 R12: 1ffff9200029ae04
[  184.063833][ T2386] R13: 00000000000005b6 R14: ffffc900014d7118 R15: ffff88800d691218
[  184.064312][ T2386] FS:  00007f3e2f2d2800(0000) GS:ffff8880d6a99000(0000) knlGS:0000000000000000
[  184.064868][ T2386] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  184.065286][ T2386] CR2: 000000000049c120 CR3: 0000000005276004 CR4: 0000000000772ef0
[  184.065763][ T2386] PKRU: 55555554
[  184.066156][ T2386] Call Trace:
[  184.066527][ T2386]  <TASK>
[ 184.066831][ T2386] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 184.067265][ T2386] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 184.067594][ T2386] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 184.067922][ T2386] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 184.068248][ T2386] netif_set_mtu (net/core/dev.c:9652) 
[ 184.068562][ T2386] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 184.068912][ T2386] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 184.069230][ T2386] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 184.069474][ T2386] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 184.069788][ T2386] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 184.070146][ T2386] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 184.070467][ T2386] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 184.070858][ T2386] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 184.071196][ T2386] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 184.071517][ T2386] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 184.071835][ T2386] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 184.072162][ T2386] ? __dev_get_by_name (net/core/dev.c:865) 
[ 184.072478][ T2386] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 184.072794][ T2386] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 184.073134][ T2386] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 184.073455][ T2386] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 184.073776][ T2386] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 184.074118][ T2386] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 184.074438][ T2386] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 184.074781][ T2386] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 184.075107][ T2386] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 184.075427][ T2386] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 184.075741][ T2386] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 184.076070][ T2386] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 184.076391][ T2386] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 184.076712][ T2386] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 184.077050][ T2386] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 184.077374][ T2386] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 184.077700][ T2386] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 184.078025][ T2386] ? 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) 
[ 184.078345][ T2386] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 184.078665][ T2386] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 184.078991][ T2386] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 184.079320][ T2386] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 184.079643][ T2386] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 184.079971][ T2386] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 184.080294][ T2386] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 184.080614][ T2386] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 184.080947][ T2386] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 184.081338][ T2386] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 184.081664][ T2386] ___sys_sendmsg (net/socket.c:2670) 
[ 184.081998][ T2386] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 184.082316][ T2386] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 184.082630][ T2386] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 184.082963][ T2386] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 184.083290][ T2386] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 184.083606][ T2386] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 184.083933][ T2386] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 184.084258][ T2386] __sys_sendmsg (net/socket.c:2700) 
[ 184.084571][ T2386] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 184.084991][ T2386] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 184.085330][ T2386] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 184.085646][ T2386] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 184.086083][ T2386] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  184.086760][ T2386] RIP: 0033:0x7f3e2f49f1e7
[ 184.087366][ T2386] 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)
[  184.088559][ T2386] RSP: 002b:00007fffeed750f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  184.089056][ T2386] RAX: ffffffffffffffda RBX: 00007fffeed75830 RCX: 00007f3e2f49f1e7
[  184.089541][ T2386] RDX: 0000000000000000 RSI: 00007fffeed75160 RDI: 0000000000000005
[  184.090018][ T2386] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[  184.090488][ T2386] R10: 00007f3e2f3976f8 R11: 0000000000000246 R12: 00007fffeed75850
[  184.090967][ T2386] R13: 00000000686e2600 R14: 0000000000499600 R15: 00007fffeed7524c
| [  184.214400][ T2387] ------------[ cut here ]------------
| [ 184.214748][ T2387] WARNING: CPU: 3 PID: 2387 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) 
| [  184.216461][ T2387] Modules linked in: ip_gre gre unix_diag cls_bpf vxlan sch_etf act_mirred cls_flower sch_ingress sch_fq [last unloaded: test_bpf]
| [  184.217861][ T2387] Tainted: [W]=WARN
[  184.218103][ T2387] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 184.218484][ T2387] 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) 
[ 184.218796][ T2387] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  184.219894][ T2387] RSP: 0018:ffffc900014e7000 EFLAGS: 00010246
[  184.220282][ T2387] RAX: 0000000000000000 RBX: ffff88800e6c9000 RCX: 0000000000000001
[  184.220734][ T2387] RDX: 0000000000000000 RSI: ffffffff93f10759 RDI: ffffffff93658280
[  184.221196][ T2387] RBP: ffffc900014e70e8 R08: ffff88800e6c9218 R09: 0000000000000000
[  184.221649][ T2387] R10: ffffc900014e7118 R11: ffff88800a7445f0 R12: 1ffff9200029ce04
[  184.222118][ T2387] R13: 00000000000005b6 R14: ffffc900014e7118 R15: ffff88800e6c9218
[  184.222571][ T2387] FS:  00007f0dbafc6800(0000) GS:ffff8880d6b19000(0000) knlGS:0000000000000000
[  184.223110][ T2387] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  184.223497][ T2387] CR2: 000000000049c120 CR3: 00000000027ef003 CR4: 0000000000772ef0
[  184.223961][ T2387] PKRU: 55555554
[  184.224193][ T2387] Call Trace:
[  184.224420][ T2387]  <TASK>
[ 184.224576][ T2387] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 184.224975][ T2387] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 184.225283][ T2387] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 184.225587][ T2387] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 184.225909][ T2387] netif_set_mtu (net/core/dev.c:9652) 
[ 184.226212][ T2387] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 184.226531][ T2387] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 184.226837][ T2387] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 184.227076][ T2387] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 184.227383][ T2387] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 184.227696][ T2387] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 184.228011][ T2387] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 184.228392][ T2387] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 184.228709][ T2387] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 184.229024][ T2387] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 184.229333][ T2387] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 184.229634][ T2387] ? __dev_get_by_name (net/core/dev.c:865) 
[ 184.229947][ T2387] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 184.230250][ T2387] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 184.230559][ T2387] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 184.230860][ T2387] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 184.231196][ T2387] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 184.231512][ T2387] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 184.231818][ T2387] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 184.232140][ T2387] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 184.232441][ T2387] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 184.232746][ T2387] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 184.233054][ T2387] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 184.233362][ T2387] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 184.233670][ T2387] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 184.233986][ T2387] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 184.234289][ T2387] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 184.234595][ T2387] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 184.234927][ T2387] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 184.235229][ T2387] ? 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) 
[ 184.235539][ T2387] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 184.235845][ T2387] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 184.236153][ T2387] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 184.236461][ T2387] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 184.236768][ T2387] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 184.237082][ T2387] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 184.237396][ T2387] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 184.237701][ T2387] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 184.238015][ T2387] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 184.238391][ T2387] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 184.238706][ T2387] ___sys_sendmsg (net/socket.c:2670) 
[ 184.239020][ T2387] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 184.239327][ T2387] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 184.239629][ T2387] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 184.239948][ T2387] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 184.240261][ T2387] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 184.240565][ T2387] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 184.240865][ T2387] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 184.241181][ T2387] __sys_sendmsg (net/socket.c:2700) 
[ 184.241496][ T2387] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 184.241870][ T2387] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 184.242194][ T2387] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 184.242503][ T2387] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 184.242807][ T2387] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  184.243189][ T2387] RIP: 0033:0x7f0dbb1931e7
[ 184.243500][ T2387] 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)
[  184.244585][ T2387] RSP: 002b:00007ffc6800aea8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  184.245054][ T2387] RAX: ffffffffffffffda RBX: 00007ffc6800b5e0 RCX: 00007f0dbb1931e7
[  184.245505][ T2387] RDX: 0000000000000000 RSI: 00007ffc6800af10 RDI: 0000000000000005
[  184.245963][ T2387] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[  184.246415][ T2387] R10: 00007f0dbb08b6f8 R11: 0000000000000246 R12: 00007ffc6800b600
[  184.246870][ T2387] R13: 00000000686e2600 R14: 0000000000499600 R15: 00007ffc6800affc
| [  188.259652][ T2436] ------------[ cut here ]------------
| [ 188.260073][ T2436] WARNING: CPU: 3 PID: 2436 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) 
| [  188.260674][ T2436] Modules linked in: ip_gre gre unix_diag cls_bpf vxlan sch_etf act_mirred cls_flower sch_ingress sch_fq [last unloaded: test_bpf]
| [  188.262103][ T2436] Tainted: [W]=WARN
[  188.262337][ T2436] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 188.262717][ T2436] 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) 
[ 188.263041][ T2436] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  188.264139][ T2436] RSP: 0018:ffffc9000175f000 EFLAGS: 00010246
[  188.264528][ T2436] RAX: 0000000000000000 RBX: ffff88801243c000 RCX: 0000000000000001
[  188.265009][ T2436] RDX: 0000000000000000 RSI: ffffffff93f10759 RDI: ffffffff93658280
[  188.265470][ T2436] RBP: ffffc9000175f0e8 R08: ffff88801243c218 R09: 0000000000000000
[  188.265940][ T2436] R10: ffffc9000175f118 R11: ffff8880120d95f0 R12: 1ffff920002ebe04
[  188.266394][ T2436] R13: 00000000000005b6 R14: ffffc9000175f118 R15: ffff88801243c218
[  188.266849][ T2436] FS:  00007f94b34b4800(0000) GS:ffff8880d6b19000(0000) knlGS:0000000000000000
[  188.267386][ T2436] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  188.267777][ T2436] CR2: 00007f94b370fb78 CR3: 000000000993e004 CR4: 0000000000772ef0
[  188.268247][ T2436] PKRU: 55555554
[  188.268474][ T2436] Call Trace:
[  188.268700][ T2436]  <TASK>
[ 188.268853][ T2436] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 188.269238][ T2436] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 188.269545][ T2436] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 188.269851][ T2436] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 188.270177][ T2436] netif_set_mtu (net/core/dev.c:9652) 
[ 188.270482][ T2436] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 188.270803][ T2436] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 188.271114][ T2436] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 188.271345][ T2436] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 188.271648][ T2436] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 188.271968][ T2436] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 188.272276][ T2436] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 188.272652][ T2436] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 188.272979][ T2436] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 188.273291][ T2436] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 188.273598][ T2436] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 188.273907][ T2436] ? __dev_get_by_name (net/core/dev.c:865) 
[ 188.274209][ T2436] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 188.274513][ T2436] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 188.274837][ T2436] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 188.275151][ T2436] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 188.275459][ T2436] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 188.275772][ T2436] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 188.276090][ T2436] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 188.276405][ T2436] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 188.276704][ T2436] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 188.277018][ T2436] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 188.277321][ T2436] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 188.277628][ T2436] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 188.277942][ T2436] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 188.278251][ T2436] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 188.278553][ T2436] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 188.278858][ T2436] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 188.279203][ T2436] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 188.279504][ T2436] ? 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) 
[ 188.279811][ T2436] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 188.280127][ T2436] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 188.280431][ T2436] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 188.280745][ T2436] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 188.281058][ T2436] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 188.281364][ T2436] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 188.281672][ T2436] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 188.281993][ T2436] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 188.282297][ T2436] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 188.282684][ T2436] ___sys_sendmsg (net/socket.c:2670) 
[ 188.282998][ T2436] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 188.283300][ T2436] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 188.283605][ T2436] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 188.283911][ T2436] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 188.284219][ T2436] ? __handle_mm_fault (mm/memory.c:6212) 
[ 188.284520][ T2436] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 188.284832][ T2436] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 188.285164][ T2436] __sys_sendmsg (net/socket.c:2700) 
[ 188.285467][ T2436] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 188.285769][ T2436] ? 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) 
[ 188.286086][ T2436] ? 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) 
[ 188.286392][ T2436] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 188.286699][ T2436] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 188.287011][ T2436] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  188.287384][ T2436] RIP: 0033:0x7f94b36811e7
[ 188.287695][ T2436] 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)
[  188.288789][ T2436] RSP: 002b:00007ffc569a3f38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  188.289252][ T2436] RAX: ffffffffffffffda RBX: 00007ffc569a4670 RCX: 00007f94b36811e7
[  188.289705][ T2436] RDX: 0000000000000000 RSI: 00007ffc569a3fa0 RDI: 0000000000000005
[  188.290165][ T2436] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[  188.290621][ T2436] R10: 00007f94b35796f8 R11: 0000000000000246 R12: 00007ffc569a4690
[  188.291083][ T2436] R13: 00000000686e2604 R14: 0000000000499600 R15: 00007ffc569a408c
| [  188.415650][ T2437] ------------[ cut here ]------------
| [ 188.416020][ T2437] WARNING: CPU: 0 PID: 2437 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) 
| [  188.416625][ T2437] Modules linked in: ip_gre gre unix_diag cls_bpf vxlan sch_etf act_mirred cls_flower sch_ingress sch_fq [last unloaded: test_bpf]
| [  188.418067][ T2437] Tainted: [W]=WARN
[  188.418299][ T2437] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 188.418678][ T2437] 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) 
[ 188.418997][ T2437] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  188.420088][ T2437] RSP: 0018:ffffc9000179f000 EFLAGS: 00010246
[  188.420474][ T2437] RAX: 0000000000000000 RBX: ffff88800e171000 RCX: 0000000000000001
[  188.420936][ T2437] RDX: 0000000000000000 RSI: ffffffff93f10759 RDI: ffffffff93658280
[  188.421391][ T2437] RBP: ffffc9000179f0e8 R08: ffff88800e171218 R09: 0000000000000000
[  188.421842][ T2437] R10: ffffc9000179f118 R11: ffff8880054495f0 R12: 1ffff920002f3e04
[  188.422309][ T2437] R13: 00000000000005b6 R14: ffffc9000179f118 R15: ffff88800e171218
[  188.422763][ T2437] FS:  00007fc697013800(0000) GS:ffff8880d6999000(0000) knlGS:0000000000000000
[  188.423303][ T2437] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  188.423685][ T2437] CR2: 0000000000436890 CR3: 000000000e31b006 CR4: 0000000000772ef0
[  188.424152][ T2437] PKRU: 55555554
[  188.424380][ T2437] Call Trace:
[  188.424607][ T2437]  <TASK>
[ 188.424769][ T2437] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 188.425161][ T2437] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 188.425469][ T2437] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 188.425774][ T2437] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 188.426098][ T2437] netif_set_mtu (net/core/dev.c:9652) 
[ 188.426413][ T2437] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 188.426730][ T2437] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 188.427042][ T2437] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 188.427274][ T2437] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 188.427580][ T2437] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 188.427904][ T2437] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 188.428215][ T2437] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 188.428595][ T2437] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 188.428918][ T2437] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 188.429225][ T2437] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 188.429533][ T2437] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 188.429832][ T2437] ? __dev_get_by_name (net/core/dev.c:865) 
[ 188.430142][ T2437] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 188.430445][ T2437] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 188.430754][ T2437] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 188.431064][ T2437] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 188.431377][ T2437] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 188.431690][ T2437] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 188.432005][ T2437] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 188.432320][ T2437] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 188.432624][ T2437] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 188.432937][ T2437] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 188.433242][ T2437] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 188.433547][ T2437] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 188.433854][ T2437] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 188.434169][ T2437] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 188.434473][ T2437] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 188.434787][ T2437] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 188.435125][ T2437] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 188.435428][ T2437] ? 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) 
[ 188.435736][ T2437] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 188.436049][ T2437] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 188.436352][ T2437] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 188.436661][ T2437] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 188.436976][ T2437] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 188.437279][ T2437] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 188.437588][ T2437] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 188.437906][ T2437] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 188.438206][ T2437] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 188.438593][ T2437] ___sys_sendmsg (net/socket.c:2670) 
[ 188.438906][ T2437] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 188.439213][ T2437] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 188.439518][ T2437] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 188.439822][ T2437] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 188.440137][ T2437] ? __handle_mm_fault (mm/memory.c:6212) 
[ 188.440440][ T2437] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 188.440740][ T2437] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 188.441072][ T2437] __sys_sendmsg (net/socket.c:2700) 
[ 188.441377][ T2437] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 188.441679][ T2437] ? 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) 
[ 188.441998][ T2437] ? 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) 
[ 188.442305][ T2437] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 188.442611][ T2437] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 188.442920][ T2437] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  188.443301][ T2437] RIP: 0033:0x7fc6971e01e7
[ 188.443618][ T2437] 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)
[  188.444713][ T2437] RSP: 002b:00007ffc355b3d78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  188.445182][ T2437] RAX: ffffffffffffffda RBX: 00007ffc355b44b0 RCX: 00007fc6971e01e7
[  188.445636][ T2437] RDX: 0000000000000000 RSI: 00007ffc355b3de0 RDI: 0000000000000005
[  188.446101][ T2437] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[  188.446557][ T2437] R10: 00007fc6970d86f8 R11: 0000000000000246 R12: 00007ffc355b44d0
[  188.447016][ T2437] R13: 00000000686e2605 R14: 0000000000499600 R15: 00007ffc355b3ecc
| [  191.763452][ T2480] ------------[ cut here ]------------
| [ 191.763864][ T2480] WARNING: CPU: 1 PID: 2480 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) 
| [  191.764492][ T2480] Modules linked in: ip_gre gre unix_diag cls_bpf vxlan sch_etf act_mirred cls_flower sch_ingress sch_fq [last unloaded: test_bpf]
| [  191.765920][ T2480] Tainted: [W]=WARN
[  191.766153][ T2480] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 191.766536][ T2480] 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) 
[ 191.766848][ T2480] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  191.767954][ T2480] RSP: 0018:ffffc90001c6f000 EFLAGS: 00010246
[  191.768344][ T2480] RAX: 0000000000000000 RBX: ffff888013849000 RCX: 0000000000000001
[  191.768803][ T2480] RDX: 0000000000000000 RSI: ffffffff93f10759 RDI: ffffffff93658280
[  191.769288][ T2480] RBP: ffffc90001c6f0e8 R08: ffff888013849218 R09: 0000000000000000
[  191.769745][ T2480] R10: ffffc90001c6f118 R11: ffff88800a9645f0 R12: 1ffff9200038de04
[  191.770212][ T2480] R13: 00000000000005b6 R14: ffffc90001c6f118 R15: ffff888013849218
[  191.770666][ T2480] FS:  00007f3d4f0c8800(0000) GS:ffff8880d6a19000(0000) knlGS:0000000000000000
[  191.771215][ T2480] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  191.771597][ T2480] CR2: 0000000000436890 CR3: 0000000013527005 CR4: 0000000000772ef0
[  191.772065][ T2480] PKRU: 55555554
[  191.772292][ T2480] Call Trace:
[  191.772520][ T2480]  <TASK>
[ 191.772673][ T2480] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 191.773062][ T2480] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 191.773373][ T2480] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 191.773678][ T2480] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 191.774000][ T2480] netif_set_mtu (net/core/dev.c:9652) 
[ 191.774304][ T2480] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 191.774618][ T2480] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 191.774941][ T2480] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 191.775175][ T2480] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 191.775482][ T2480] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 191.775794][ T2480] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 191.776124][ T2480] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 191.776517][ T2480] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 191.776834][ T2480] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 191.777147][ T2480] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 191.777454][ T2480] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 191.777754][ T2480] ? __dev_get_by_name (net/core/dev.c:865) 
[ 191.778073][ T2480] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 191.778377][ T2480] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 191.778684][ T2480] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 191.778994][ T2480] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 191.779304][ T2480] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 191.779617][ T2480] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 191.779940][ T2480] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 191.780262][ T2480] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 191.780562][ T2480] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 191.780866][ T2480] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 191.781178][ T2480] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 191.781489][ T2480] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 191.781796][ T2480] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 191.782111][ T2480] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 191.782415][ T2480] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 191.782719][ T2480] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 191.783040][ T2480] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 191.783341][ T2480] ? 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) 
[ 191.783652][ T2480] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 191.783972][ T2480] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 191.784281][ T2480] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 191.784589][ T2480] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 191.784911][ T2480] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 191.785216][ T2480] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 191.785525][ T2480] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 191.785835][ T2480] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 191.786142][ T2480] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 191.786532][ T2480] ___sys_sendmsg (net/socket.c:2670) 
[ 191.786837][ T2480] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 191.787146][ T2480] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 191.787450][ T2480] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 191.787750][ T2480] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 191.788076][ T2480] ? __handle_mm_fault (mm/memory.c:6212) 
[ 191.788387][ T2480] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 191.788687][ T2480] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 191.789017][ T2480] __sys_sendmsg (net/socket.c:2700) 
[ 191.789322][ T2480] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 191.789623][ T2480] ? 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) 
[ 191.789946][ T2480] ? 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) 
[ 191.790252][ T2480] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 191.790558][ T2480] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 191.790863][ T2480] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  191.791245][ T2480] RIP: 0033:0x7f3d4f2951e7
[ 191.791556][ T2480] 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)
[  191.792688][ T2480] RSP: 002b:00007fffd66e9298 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  191.793155][ T2480] RAX: ffffffffffffffda RBX: 00007fffd66e99d0 RCX: 00007f3d4f2951e7
[  191.793610][ T2480] RDX: 0000000000000000 RSI: 00007fffd66e9300 RDI: 0000000000000005
[  191.794069][ T2480] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[  191.794530][ T2480] R10: 00007f3d4f18d6f8 R11: 0000000000000246 R12: 00007fffd66e99f0
[  191.794996][ T2480] R13: 00000000686e2608 R14: 0000000000499600 R15: 00007fffd66e93ec
| [  191.918039][ T2481] ------------[ cut here ]------------
| [ 191.918468][ T2481] WARNING: CPU: 2 PID: 2481 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) 
| [  191.919096][ T2481] Modules linked in: ip_gre gre unix_diag cls_bpf vxlan sch_etf act_mirred cls_flower sch_ingress sch_fq [last unloaded: test_bpf]
| [  191.920631][ T2481] Tainted: [W]=WARN
[  191.920872][ T2481] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 191.921274][ T2481] 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) 
[ 191.921600][ T2481] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  191.922708][ T2481] RSP: 0018:ffffc90001c7f000 EFLAGS: 00010246
[  191.923115][ T2481] RAX: 0000000000000000 RBX: ffff88801229c000 RCX: 0000000000000001
[  191.923582][ T2481] RDX: 0000000000000000 RSI: ffffffff93f10759 RDI: ffffffff93658280
[  191.924064][ T2481] RBP: ffffc90001c7f0e8 R08: ffff88801229c218 R09: 0000000000000000
[  191.924531][ T2481] R10: ffffc90001c7f118 R11: ffff8880062b95f0 R12: 1ffff9200038fe04
[  191.925011][ T2481] R13: 00000000000005b6 R14: ffffc90001c7f118 R15: ffff88801229c218
[  191.925475][ T2481] FS:  00007fa67ae0f800(0000) GS:ffff8880d6a99000(0000) knlGS:0000000000000000
[  191.926041][ T2481] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  191.926438][ T2481] CR2: 0000000000436890 CR3: 000000000bc60003 CR4: 0000000000772ef0
[  191.926915][ T2481] PKRU: 55555554
[  191.927157][ T2481] Call Trace:
[  191.927394][ T2481]  <TASK>
[ 191.927567][ T2481] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 191.927981][ T2481] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 191.928305][ T2481] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 191.928629][ T2481] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 191.928963][ T2481] netif_set_mtu (net/core/dev.c:9652) 
[ 191.929280][ T2481] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 191.929606][ T2481] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 191.929933][ T2481] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 191.930176][ T2481] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 191.930494][ T2481] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 191.930820][ T2481] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 191.931151][ T2481] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 191.931540][ T2481] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 191.931866][ T2481] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 191.932192][ T2481] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 191.932515][ T2481] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 191.932826][ T2481] ? __dev_get_by_name (net/core/dev.c:865) 
[ 191.933163][ T2481] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 191.933477][ T2481] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 191.933799][ T2481] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 191.934121][ T2481] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 191.934444][ T2481] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 191.934786][ T2481] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 191.935118][ T2481] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 191.935447][ T2481] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 191.935765][ T2481] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 191.936093][ T2481] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 191.936411][ T2481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 191.936729][ T2481] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 191.937056][ T2481] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 191.937377][ T2481] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 191.937695][ T2481] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 191.938025][ T2481] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 191.938352][ T2481] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 191.938669][ T2481] ? 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) 
[ 191.938995][ T2481] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 191.939315][ T2481] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 191.939628][ T2481] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 191.939959][ T2481] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 191.940283][ T2481] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 191.940600][ T2481] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 191.940931][ T2481] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 191.941253][ T2481] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 191.941565][ T2481] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 191.941975][ T2481] ___sys_sendmsg (net/socket.c:2670) 
[ 191.942292][ T2481] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 191.942613][ T2481] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 191.942940][ T2481] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 191.943255][ T2481] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 191.943574][ T2481] ? __handle_mm_fault (mm/memory.c:6212) 
[ 191.943894][ T2481] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 191.944208][ T2481] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 191.944550][ T2481] __sys_sendmsg (net/socket.c:2700) 
[ 191.944872][ T2481] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 191.945198][ T2481] ? 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) 
[ 191.945520][ T2481] ? 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) 
[ 191.945836][ T2481] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 191.946162][ T2481] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 191.946479][ T2481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  191.946866][ T2481] RIP: 0033:0x7fa67afdc1e7
[ 191.947204][ T2481] 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)
[  191.948305][ T2481] RSP: 002b:00007ffe545f2708 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  191.948772][ T2481] RAX: ffffffffffffffda RBX: 00007ffe545f2e40 RCX: 00007fa67afdc1e7
[  191.949253][ T2481] RDX: 0000000000000000 RSI: 00007ffe545f2770 RDI: 0000000000000005
[  191.949718][ T2481] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[  191.950453][ T2481] R10: 00007fa67aed46f8 R11: 0000000000000246 R12: 00007ffe545f2e60
[  191.951272][ T2481] R13: 00000000686e2608 R14: 0000000000499600 R15: 00007ffe545f285c
| [  196.005829][ T2530] ------------[ cut here ]------------
| [ 196.006195][ T2530] WARNING: CPU: 0 PID: 2530 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) 
| [  196.006804][ T2530] Modules linked in: ip_gre gre unix_diag cls_bpf vxlan sch_etf act_mirred cls_flower sch_ingress sch_fq [last unloaded: test_bpf]
| [  196.008738][ T2530] Tainted: [W]=WARN
[  196.008978][ T2530] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 196.009361][ T2530] 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) 
[ 196.009675][ T2530] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  196.010786][ T2530] RSP: 0018:ffffc90002257000 EFLAGS: 00010246
[  196.011180][ T2530] RAX: 0000000000000000 RBX: ffff88800e37c000 RCX: 0000000000000001
[  196.011637][ T2530] RDX: 0000000000000000 RSI: ffffffff93f10759 RDI: ffffffff93658280
[  196.012101][ T2530] RBP: ffffc900022570e8 R08: ffff88800e37c218 R09: 0000000000000000
[  196.012562][ T2530] R10: ffffc90002257118 R11: ffff88800a9545f0 R12: 1ffff9200044ae04
[  196.013027][ T2530] R13: 00000000000005b6 R14: ffffc90002257118 R15: ffff88800e37c218
[  196.013480][ T2530] FS:  00007fe954f29800(0000) GS:ffff8880d6999000(0000) knlGS:0000000000000000
[  196.014038][ T2530] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  196.014428][ T2530] CR2: 000000000049c120 CR3: 0000000005270004 CR4: 0000000000772ef0
[  196.014902][ T2530] PKRU: 55555554
[  196.015130][ T2530] Call Trace:
[  196.015357][ T2530]  <TASK>
[ 196.015511][ T2530] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 196.015901][ T2530] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 196.016212][ T2530] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 196.016522][ T2530] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 196.016840][ T2530] netif_set_mtu (net/core/dev.c:9652) 
[ 196.017167][ T2530] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 196.017482][ T2530] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 196.017784][ T2530] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 196.018034][ T2530] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 196.018354][ T2530] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 196.018665][ T2530] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 196.018986][ T2530] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 196.019364][ T2530] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 196.019676][ T2530] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 196.019994][ T2530] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 196.020306][ T2530] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 196.020606][ T2530] ? __dev_get_by_name (net/core/dev.c:865) 
[ 196.020916][ T2530] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 196.021220][ T2530] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 196.021528][ T2530] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 196.021826][ T2530] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 196.022157][ T2530] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 196.022477][ T2530] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 196.022791][ T2530] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 196.023118][ T2530] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 196.023422][ T2530] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 196.023733][ T2530] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 196.024045][ T2530] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 196.024350][ T2530] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 196.024663][ T2530] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 196.024988][ T2530] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 196.025291][ T2530] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 196.025596][ T2530] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 196.025933][ T2530] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 196.026239][ T2530] ? 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) 
[ 196.026544][ T2530] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 196.026849][ T2530] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 196.027159][ T2530] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 196.027470][ T2530] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 196.027778][ T2530] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 196.028098][ T2530] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 196.028412][ T2530] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 196.028719][ T2530] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 196.029030][ T2530] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 196.029407][ T2530] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 196.029725][ T2530] ___sys_sendmsg (net/socket.c:2670) 
[ 196.030048][ T2530] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 196.030364][ T2530] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 196.030669][ T2530] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 196.030985][ T2530] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 196.031297][ T2530] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 196.031603][ T2530] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 196.031914][ T2530] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 196.032222][ T2530] __sys_sendmsg (net/socket.c:2700) 
[ 196.032524][ T2530] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 196.032913][ T2530] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 196.033231][ T2530] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 196.033535][ T2530] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 196.033841][ T2530] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  196.034232][ T2530] RIP: 0033:0x7fe9550f61e7
[ 196.034549][ T2530] 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)
[  196.035657][ T2530] RSP: 002b:00007ffe865e5f88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  196.036123][ T2530] RAX: ffffffffffffffda RBX: 00007ffe865e66c0 RCX: 00007fe9550f61e7
[  196.036578][ T2530] RDX: 0000000000000000 RSI: 00007ffe865e5ff0 RDI: 0000000000000005
[  196.037046][ T2530] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[  196.037500][ T2530] R10: 00007fe954fee6f8 R11: 0000000000000246 R12: 00007ffe865e66e0
[  196.038003][ T2530] R13: 00000000686e260c R14: 0000000000499600 R15: 00007ffe865e60dc
| [  196.178710][ T2531] ------------[ cut here ]------------
| [ 196.179192][ T2531] WARNING: CPU: 2 PID: 2531 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) 
| [  196.179816][ T2531] Modules linked in: ip_gre gre unix_diag cls_bpf vxlan sch_etf act_mirred cls_flower sch_ingress sch_fq [last unloaded: test_bpf]
| [  196.181929][ T2531] Tainted: [W]=WARN
[  196.182173][ T2531] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 196.182567][ T2531] 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) 
[ 196.182912][ T2531] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  196.184019][ T2531] RSP: 0018:ffffc90002257000 EFLAGS: 00010246
[  196.184414][ T2531] RAX: 0000000000000000 RBX: ffff88800b061000 RCX: 0000000000000001
[  196.184902][ T2531] RDX: 0000000000000000 RSI: ffffffff93f10759 RDI: ffffffff93658280
[  196.185369][ T2531] RBP: ffffc900022570e8 R08: ffff88800b061218 R09: 0000000000000000
[  196.185840][ T2531] R10: ffffc90002257118 R11: ffff88800ab795f0 R12: 1ffff9200044ae04
[  196.186318][ T2531] R13: 00000000000005b6 R14: ffffc90002257118 R15: ffff88800b061218
[  196.186784][ T2531] FS:  00007fe0df8a5800(0000) GS:ffff8880d6a99000(0000) knlGS:0000000000000000
[  196.187348][ T2531] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  196.187748][ T2531] CR2: 000000000049c120 CR3: 000000000a8e5001 CR4: 0000000000772ef0
[  196.188232][ T2531] PKRU: 55555554
[  196.188474][ T2531] Call Trace:
[  196.188714][ T2531]  <TASK>
[ 196.188879][ T2531] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 196.189280][ T2531] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 196.189597][ T2531] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 196.189928][ T2531] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 196.190260][ T2531] netif_set_mtu (net/core/dev.c:9652) 
[ 196.190581][ T2531] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 196.190928][ T2531] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 196.191250][ T2531] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 196.191491][ T2531] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 196.191807][ T2531] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 196.192142][ T2531] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 196.192465][ T2531] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 196.192858][ T2531] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 196.193194][ T2531] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 196.193516][ T2531] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 196.193838][ T2531] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 196.194163][ T2531] ? __dev_get_by_name (net/core/dev.c:865) 
[ 196.194490][ T2531] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 196.194812][ T2531] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 196.195160][ T2531] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 196.195476][ T2531] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 196.195800][ T2531] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 196.196136][ T2531] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 196.196461][ T2531] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 196.196787][ T2531] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 196.197112][ T2531] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 196.197454][ T2531] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 196.198019][ T2531] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 196.198578][ T2531] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 196.198935][ T2531] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 196.199263][ T2531] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 196.199582][ T2531] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 196.199912][ T2531] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 196.200242][ T2531] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 196.200562][ T2531] ? 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) 
[ 196.200894][ T2531] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 196.201215][ T2531] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 196.201532][ T2531] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 196.201853][ T2531] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 196.202185][ T2531] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 196.202504][ T2531] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 196.202832][ T2531] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 196.203171][ T2531] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 196.203491][ T2531] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 196.203879][ T2531] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 196.204219][ T2531] ___sys_sendmsg (net/socket.c:2670) 
[ 196.204540][ T2531] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 196.204877][ T2531] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 196.205207][ T2531] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 196.205529][ T2531] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 196.205854][ T2531] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 196.206187][ T2531] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 196.206505][ T2531] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 196.206824][ T2531] __sys_sendmsg (net/socket.c:2700) 
[ 196.207160][ T2531] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 196.207559][ T2531] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 196.207899][ T2531] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 196.208219][ T2531] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 196.208536][ T2531] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  196.208934][ T2531] RIP: 0033:0x7fe0dfa721e7
[ 196.209259][ T2531] 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)
[  196.210368][ T2531] RSP: 002b:00007ffd3d63a5b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  196.210840][ T2531] RAX: ffffffffffffffda RBX: 00007ffd3d63acf0 RCX: 00007fe0dfa721e7
[  196.211325][ T2531] RDX: 0000000000000000 RSI: 00007ffd3d63a620 RDI: 0000000000000005
[  196.211796][ T2531] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[  196.212280][ T2531] R10: 00007fe0df96a6f8 R11: 0000000000000246 R12: 00007ffd3d63ad10
[  196.212746][ T2531] R13: 00000000686e260c R14: 0000000000499600 R15: 00007ffd3d63a70c
| [  199.601957][ T2574] ------------[ cut here ]------------
| [ 199.602310][ T2574] WARNING: CPU: 3 PID: 2574 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) 
| [  199.602938][ T2574] Modules linked in: ip_gre gre unix_diag cls_bpf vxlan sch_etf act_mirred cls_flower sch_ingress sch_fq [last unloaded: test_bpf]
| [  199.604381][ T2574] Tainted: [W]=WARN
[  199.604612][ T2574] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 199.605021][ T2574] 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) 
[ 199.605354][ T2574] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  199.606466][ T2574] RSP: 0018:ffffc900025df000 EFLAGS: 00010246
[  199.606851][ T2574] RAX: 0000000000000000 RBX: ffff88800e379000 RCX: 0000000000000001
[  199.607339][ T2574] RDX: 0000000000000000 RSI: ffffffff93f10759 RDI: ffffffff93658280
[  199.607797][ T2574] RBP: ffffc900025df0e8 R08: ffff88800e379218 R09: 0000000000000000
[  199.608274][ T2574] R10: ffffc900025df118 R11: ffff88800a0c45f0 R12: 1ffff920004bbe04
[  199.608731][ T2574] R13: 00000000000005b6 R14: ffffc900025df118 R15: ffff88800e379218
[  199.609198][ T2574] FS:  00007f7c87c24800(0000) GS:ffff8880d6b19000(0000) knlGS:0000000000000000
[  199.609746][ T2574] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  199.610140][ T2574] CR2: 000000000049c120 CR3: 0000000009dae004 CR4: 0000000000772ef0
[  199.610613][ T2574] PKRU: 55555554
[  199.610843][ T2574] Call Trace:
[  199.611086][ T2574]  <TASK>
[ 199.611244][ T2574] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 199.611642][ T2574] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 199.611977][ T2574] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 199.612290][ T2574] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 199.612619][ T2574] netif_set_mtu (net/core/dev.c:9652) 
[ 199.612939][ T2574] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 199.613258][ T2574] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 199.613582][ T2574] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 199.613813][ T2574] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 199.614130][ T2574] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 199.614456][ T2574] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 199.614775][ T2574] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 199.615169][ T2574] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 199.615508][ T2574] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 199.615820][ T2574] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 199.616144][ T2574] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 199.616457][ T2574] ? __dev_get_by_name (net/core/dev.c:865) 
[ 199.616764][ T2574] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 199.617082][ T2574] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 199.617392][ T2574] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 199.617703][ T2574] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 199.618026][ T2574] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 199.618348][ T2574] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 199.618673][ T2574] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 199.618997][ T2574] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 199.619299][ T2574] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 199.619622][ T2574] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 199.619937][ T2574] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 199.620243][ T2574] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 199.620566][ T2574] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 199.620881][ T2574] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 199.621198][ T2574] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 199.621502][ T2574] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 199.621832][ T2574] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 199.622146][ T2574] ? 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) 
[ 199.622453][ T2574] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 199.622775][ T2574] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 199.623090][ T2574] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 199.623401][ T2574] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 199.623725][ T2574] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 199.624039][ T2574] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 199.624348][ T2574] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 199.624683][ T2574] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 199.624999][ T2574] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 199.625379][ T2574] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 199.625707][ T2574] ___sys_sendmsg (net/socket.c:2670) 
[ 199.626025][ T2574] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 199.626331][ T2574] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 199.626643][ T2574] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 199.626972][ T2574] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 199.627287][ T2574] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 199.627599][ T2574] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 199.627925][ T2574] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 199.628236][ T2574] __sys_sendmsg (net/socket.c:2700) 
[ 199.628537][ T2574] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 199.628938][ T2574] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 199.629257][ T2574] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 199.629562][ T2574] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 199.629879][ T2574] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  199.630275][ T2574] RIP: 0033:0x7f7c87df11e7
[ 199.630586][ T2574] 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)
[  199.631694][ T2574] RSP: 002b:00007ffe76b974f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  199.632182][ T2574] RAX: ffffffffffffffda RBX: 00007ffe76b97c30 RCX: 00007f7c87df11e7
[  199.632638][ T2574] RDX: 0000000000000000 RSI: 00007ffe76b97560 RDI: 0000000000000005
[  199.633117][ T2574] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[  199.633573][ T2574] R10: 00007f7c87ce96f8 R11: 0000000000000246 R12: 00007ffe76b97c50
[  199.634048][ T2574] R13: 00000000686e2610 R14: 0000000000499600 R15: 00007ffe76b9764c
| [  199.755712][ T2575] ------------[ cut here ]------------
| [ 199.756480][ T2575] WARNING: CPU: 0 PID: 2575 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) 
| [  199.757099][ T2575] Modules linked in: ip_gre gre unix_diag cls_bpf vxlan sch_etf act_mirred cls_flower sch_ingress sch_fq [last unloaded: test_bpf]
| [  199.758508][ T2575] Tainted: [W]=WARN
[  199.758745][ T2575] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 199.759134][ T2575] 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) 
[ 199.759446][ T2575] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  199.760540][ T2575] RSP: 0018:ffffc900025df000 EFLAGS: 00010246
[  199.760944][ T2575] RAX: 0000000000000000 RBX: ffff8880141c1000 RCX: 0000000000000001
[  199.761398][ T2575] RDX: 0000000000000000 RSI: ffffffff93f10759 RDI: ffffffff93658280
[  199.761854][ T2575] RBP: ffffc900025df0e8 R08: ffff8880141c1218 R09: 0000000000000000
[  199.762325][ T2575] R10: ffffc900025df118 R11: ffff8880063c95f0 R12: 1ffff920004bbe04
[  199.762787][ T2575] R13: 00000000000005b6 R14: ffffc900025df118 R15: ffff8880141c1218
[  199.763252][ T2575] FS:  00007fbe2222d800(0000) GS:ffff8880d6999000(0000) knlGS:0000000000000000
[  199.763782][ T2575] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  199.764173][ T2575] CR2: 000000000049c120 CR3: 0000000005324004 CR4: 0000000000772ef0
[  199.764636][ T2575] PKRU: 55555554
[  199.764870][ T2575] Call Trace:
[  199.765106][ T2575]  <TASK>
[ 199.765260][ T2575] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 199.765639][ T2575] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 199.765961][ T2575] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 199.766271][ T2575] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 199.766585][ T2575] netif_set_mtu (net/core/dev.c:9652) 
[ 199.766899][ T2575] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 199.767223][ T2575] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 199.767527][ T2575] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 199.767758][ T2575] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 199.768071][ T2575] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 199.768384][ T2575] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 199.768691][ T2575] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 199.769075][ T2575] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 199.769397][ T2575] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 199.769702][ T2575] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 199.770042][ T2575] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 199.770348][ T2575] ? __dev_get_by_name (net/core/dev.c:865) 
[ 199.770650][ T2575] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 199.770966][ T2575] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 199.771278][ T2575] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 199.771581][ T2575] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 199.771898][ T2575] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 199.772216][ T2575] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 199.772525][ T2575] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 199.772841][ T2575] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 199.773152][ T2575] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 199.773463][ T2575] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 199.773765][ T2575] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 199.774090][ T2575] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 199.774405][ T2575] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 199.774722][ T2575] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 199.775038][ T2575] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 199.775349][ T2575] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 199.775666][ T2575] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 199.775975][ T2575] ? 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) 
[ 199.776292][ T2575] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 199.776599][ T2575] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 199.776912][ T2575] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 199.777223][ T2575] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 199.777533][ T2575] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 199.777838][ T2575] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 199.778164][ T2575] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 199.778486][ T2575] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 199.778788][ T2575] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 199.779178][ T2575] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 199.779507][ T2575] ___sys_sendmsg (net/socket.c:2670) 
[ 199.779812][ T2575] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 199.780127][ T2575] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 199.780435][ T2575] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 199.780748][ T2575] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 199.781067][ T2575] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 199.781377][ T2575] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 199.781681][ T2575] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 199.782004][ T2575] __sys_sendmsg (net/socket.c:2700) 
[ 199.782309][ T2575] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 199.782691][ T2575] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 199.783015][ T2575] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 199.783326][ T2575] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 199.783641][ T2575] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  199.784024][ T2575] RIP: 0033:0x7fbe223fa1e7
[ 199.784337][ T2575] 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)
[  199.785447][ T2575] RSP: 002b:00007ffdb6b69ce8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  199.785922][ T2575] RAX: ffffffffffffffda RBX: 00007ffdb6b6a420 RCX: 00007fbe223fa1e7
[  199.786379][ T2575] RDX: 0000000000000000 RSI: 00007ffdb6b69d50 RDI: 0000000000000005
[  199.786838][ T2575] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[  199.787302][ T2575] R10: 00007fbe222f26f8 R11: 0000000000000246 R12: 00007ffdb6b6a440
[  199.787760][ T2575] R13: 00000000686e2610 R14: 0000000000499600 R15: 00007ffdb6b69e3c
| [  203.812657][ T2624] ------------[ cut here ]------------
| [ 203.813450][ T2624] WARNING: CPU: 3 PID: 2624 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) 
| [  203.814072][ T2624] Modules linked in: ip_gre gre unix_diag cls_bpf vxlan sch_etf act_mirred cls_flower sch_ingress sch_fq [last unloaded: test_bpf]
| [  203.815482][ T2624] Tainted: [W]=WARN
[  203.815712][ T2624] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 203.816104][ T2624] 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) 
[ 203.816417][ T2624] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  203.817506][ T2624] RSP: 0018:ffffc9000279f000 EFLAGS: 00010246
[  203.817901][ T2624] RAX: 0000000000000000 RBX: ffff888013ec1000 RCX: 0000000000000001
[  203.818362][ T2624] RDX: 0000000000000000 RSI: ffffffff93f10759 RDI: ffffffff93658280
[  203.818816][ T2624] RBP: ffffc9000279f0e8 R08: ffff888013ec1218 R09: 0000000000000000
[  203.819289][ T2624] R10: ffffc9000279f118 R11: ffff88800ba615f0 R12: 1ffff920004f3e04
[  203.819748][ T2624] R13: 00000000000005b6 R14: ffffc9000279f118 R15: ffff888013ec1218
[  203.820212][ T2624] FS:  00007f027b0fe800(0000) GS:ffff8880d6b19000(0000) knlGS:0000000000000000
[  203.820747][ T2624] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  203.821140][ T2624] CR2: 0000000000436890 CR3: 000000000db63004 CR4: 0000000000772ef0
[  203.821600][ T2624] PKRU: 55555554
[  203.821827][ T2624] Call Trace:
[  203.822081][ T2624]  <TASK>
[ 203.822235][ T2624] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 203.822614][ T2624] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 203.822931][ T2624] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 203.823239][ T2624] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 203.823552][ T2624] netif_set_mtu (net/core/dev.c:9652) 
[ 203.823855][ T2624] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 203.824183][ T2624] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 203.824491][ T2624] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 203.824731][ T2624] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 203.825047][ T2624] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 203.825359][ T2624] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 203.825666][ T2624] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 203.826059][ T2624] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 203.826375][ T2624] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 203.826683][ T2624] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 203.827010][ T2624] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 203.827319][ T2624] ? __dev_get_by_name (net/core/dev.c:865) 
[ 203.827629][ T2624] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 203.827946][ T2624] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 203.828255][ T2624] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 203.828555][ T2624] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 203.828861][ T2624] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 203.829186][ T2624] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 203.829500][ T2624] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 203.829815][ T2624] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 203.830129][ T2624] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 203.830436][ T2624] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 203.830738][ T2624] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 203.831050][ T2624] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 203.831358][ T2624] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 203.831665][ T2624] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 203.831977][ T2624] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 203.832291][ T2624] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 203.832606][ T2624] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 203.832916][ T2624] ? 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) 
[ 203.833223][ T2624] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 203.833530][ T2624] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 203.833832][ T2624] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 203.834151][ T2624] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 203.834463][ T2624] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 203.834774][ T2624] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 203.835096][ T2624] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 203.835403][ T2624] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 203.835704][ T2624] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 203.836103][ T2624] ___sys_sendmsg (net/socket.c:2670) 
[ 203.836408][ T2624] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 203.836714][ T2624] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 203.837029][ T2624] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 203.837329][ T2624] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 203.837634][ T2624] ? __handle_mm_fault (mm/memory.c:6212) 
[ 203.837947][ T2624] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 203.838248][ T2624] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 203.838575][ T2624] __sys_sendmsg (net/socket.c:2700) 
[ 203.838878][ T2624] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 203.839190][ T2624] ? 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) 
[ 203.839499][ T2624] ? 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) 
[ 203.839803][ T2624] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 203.840118][ T2624] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 203.840421][ T2624] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  203.840795][ T2624] RIP: 0033:0x7f027b2cb1e7
[ 203.841126][ T2624] 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)
[  203.842211][ T2624] RSP: 002b:00007ffe7a6481c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  203.842673][ T2624] RAX: ffffffffffffffda RBX: 00007ffe7a648900 RCX: 00007f027b2cb1e7
[  203.843141][ T2624] RDX: 0000000000000000 RSI: 00007ffe7a648230 RDI: 0000000000000005
[  203.843593][ T2624] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[  203.844056][ T2624] R10: 00007f027b1c36f8 R11: 0000000000000246 R12: 00007ffe7a648920
[  203.844509][ T2624] R13: 00000000686e2614 R14: 0000000000499600 R15: 00007ffe7a64831c
| [  203.972829][ T2625] ------------[ cut here ]------------
| [ 203.973185][ T2625] WARNING: CPU: 0 PID: 2625 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) 
| [  203.973789][ T2625] Modules linked in: ip_gre gre unix_diag cls_bpf vxlan sch_etf act_mirred cls_flower sch_ingress sch_fq [last unloaded: test_bpf]
| [  203.975209][ T2625] Tainted: [W]=WARN
[  203.975445][ T2625] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 203.975822][ T2625] 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) 
[ 203.977254][ T2625] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  203.978361][ T2625] RSP: 0018:ffffc9000279f000 EFLAGS: 00010246
[  203.978754][ T2625] RAX: 0000000000000000 RBX: ffff8880120dc000 RCX: 0000000000000001
[  203.979214][ T2625] RDX: 0000000000000000 RSI: ffffffff93f10759 RDI: ffffffff93658280
[  203.979666][ T2625] RBP: ffffc9000279f0e8 R08: ffff8880120dc218 R09: 0000000000000000
[  203.980127][ T2625] R10: ffffc9000279f118 R11: ffff88800ba645f0 R12: 1ffff920004f3e04
[  203.980586][ T2625] R13: 00000000000005b6 R14: ffffc9000279f118 R15: ffff8880120dc218
[  203.981049][ T2625] FS:  00007fc4f79eb800(0000) GS:ffff8880d6999000(0000) knlGS:0000000000000000
[  203.981580][ T2625] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  203.981973][ T2625] CR2: 0000000000436890 CR3: 00000000123aa002 CR4: 0000000000772ef0
[  203.982427][ T2625] PKRU: 55555554
[  203.982659][ T2625] Call Trace:
[  203.982893][ T2625]  <TASK>
[ 203.983049][ T2625] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 203.983425][ T2625] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 203.983733][ T2625] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 203.984047][ T2625] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 203.984362][ T2625] netif_set_mtu (net/core/dev.c:9652) 
[ 203.984672][ T2625] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 203.985008][ T2625] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 203.985311][ T2625] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 203.985543][ T2625] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 203.985848][ T2625] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 203.986166][ T2625] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 203.986473][ T2625] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 203.986849][ T2625] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 203.987174][ T2625] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 203.987481][ T2625] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 203.987785][ T2625] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 203.988096][ T2625] ? __dev_get_by_name (net/core/dev.c:865) 
[ 203.988400][ T2625] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 203.988703][ T2625] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 203.989022][ T2625] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 203.989323][ T2625] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 203.989635][ T2625] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 203.989959][ T2625] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 203.990269][ T2625] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 203.990584][ T2625] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 203.990894][ T2625] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 203.991204][ T2625] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 203.991507][ T2625] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 203.991814][ T2625] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 203.992131][ T2625] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 203.992440][ T2625] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 203.992742][ T2625] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 203.993056][ T2625] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 203.993371][ T2625] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 203.993671][ T2625] ? 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) 
[ 203.993990][ T2625] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 203.994298][ T2625] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 203.994600][ T2625] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 203.994935][ T2625] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 203.995243][ T2625] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 203.995548][ T2625] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 203.995858][ T2625] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 203.996173][ T2625] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 203.996480][ T2625] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 203.996871][ T2625] ___sys_sendmsg (net/socket.c:2670) 
[ 203.997185][ T2625] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 203.997488][ T2625] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 203.997793][ T2625] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 203.998127][ T2625] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 203.998441][ T2625] ? __handle_mm_fault (mm/memory.c:6212) 
[ 203.998746][ T2625] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 203.999058][ T2625] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 203.999380][ T2625] __sys_sendmsg (net/socket.c:2700) 
[ 203.999684][ T2625] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 204.000013][ T2625] ? 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) 
[ 204.000325][ T2625] ? 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) 
[ 204.000635][ T2625] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 204.000948][ T2625] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 204.001253][ T2625] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  204.001627][ T2625] RIP: 0033:0x7fc4f7bb81e7
[ 204.001949][ T2625] 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)
[  204.003045][ T2625] RSP: 002b:00007fff3db8a948 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  204.003502][ T2625] RAX: ffffffffffffffda RBX: 00007fff3db8b080 RCX: 00007fc4f7bb81e7
[  204.003966][ T2625] RDX: 0000000000000000 RSI: 00007fff3db8a9b0 RDI: 0000000000000005
[  204.004422][ T2625] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[  204.004901][ T2625] R10: 00007fc4f7ab06f8 R11: 0000000000000246 R12: 00007fff3db8b0a0
[  204.005356][ T2625] R13: 00000000686e2614 R14: 0000000000499600 R15: 00007fff3db8aa9c
| [  208.077276][ T2668] ------------[ cut here ]------------
| [ 208.077679][ T2668] WARNING: CPU: 0 PID: 2668 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) 
| [  208.078302][ T2668] Modules linked in: ip_gre gre unix_diag cls_bpf vxlan sch_etf act_mirred cls_flower sch_ingress sch_fq [last unloaded: test_bpf]
| [  208.079713][ T2668] Tainted: [W]=WARN
[  208.079952][ T2668] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 208.080340][ T2668] 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) 
[ 208.080653][ T2668] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  208.081749][ T2668] RSP: 0018:ffffc9000286f000 EFLAGS: 00010246
[  208.082144][ T2668] RAX: 0000000000000000 RBX: ffff8880086a9000 RCX: 0000000000000001
[  208.082603][ T2668] RDX: 0000000000000000 RSI: ffffffff93f10759 RDI: ffffffff93658280
[  208.083068][ T2668] RBP: ffffc9000286f0e8 R08: ffff8880086a9218 R09: 0000000000000000
[  208.083526][ T2668] R10: ffffc9000286f118 R11: ffff88800f9ec5f0 R12: 1ffff9200050de04
[  208.083988][ T2668] R13: 00000000000005b6 R14: ffffc9000286f118 R15: ffff8880086a9218
[  208.084447][ T2668] FS:  00007efc3e616800(0000) GS:ffff8880d6999000(0000) knlGS:0000000000000000
[  208.085007][ T2668] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  208.085394][ T2668] CR2: 0000000000436890 CR3: 0000000004fb5002 CR4: 0000000000772ef0
[  208.085850][ T2668] PKRU: 55555554
[  208.086088][ T2668] Call Trace:
[  208.086316][ T2668]  <TASK>
[ 208.086472][ T2668] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 208.086854][ T2668] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 208.087169][ T2668] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 208.087481][ T2668] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 208.087796][ T2668] netif_set_mtu (net/core/dev.c:9652) 
[ 208.088107][ T2668] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 208.088424][ T2668] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 208.088729][ T2668] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 208.088967][ T2668] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 208.089273][ T2668] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 208.089591][ T2668] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 208.089911][ T2668] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 208.090295][ T2668] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 208.090607][ T2668] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 208.090922][ T2668] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 208.091230][ T2668] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 208.091531][ T2668] ? __dev_get_by_name (net/core/dev.c:865) 
[ 208.091834][ T2668] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 208.092147][ T2668] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 208.092455][ T2668] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 208.092755][ T2668] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 208.093083][ T2668] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 208.093400][ T2668] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 208.093711][ T2668] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 208.094037][ T2668] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 208.094345][ T2668] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 208.094661][ T2668] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 208.094980][ T2668] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 208.095288][ T2668] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 208.095596][ T2668] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 208.095917][ T2668] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 208.096222][ T2668] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 208.096528][ T2668] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 208.096852][ T2668] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 208.097163][ T2668] ? 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) 
[ 208.097471][ T2668] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 208.097787][ T2668] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 208.098097][ T2668] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 208.098407][ T2668] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 208.098712][ T2668] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 208.099030][ T2668] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 208.099341][ T2668] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 208.099647][ T2668] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 208.099956][ T2668] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 208.100348][ T2668] ___sys_sendmsg (net/socket.c:2670) 
[ 208.100655][ T2668] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 208.100968][ T2668] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 208.101278][ T2668] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 208.101581][ T2668] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 208.101894][ T2668] ? __handle_mm_fault (mm/memory.c:6212) 
[ 208.102198][ T2668] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 208.102499][ T2668] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 208.102823][ T2668] __sys_sendmsg (net/socket.c:2700) 
[ 208.103136][ T2668] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 208.103443][ T2668] ? 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) 
[ 208.103754][ T2668] ? 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) 
[ 208.104068][ T2668] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 208.104377][ T2668] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 208.104689][ T2668] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  208.105073][ T2668] RIP: 0033:0x7efc3e7e31e7
[ 208.105387][ T2668] 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)
[  208.106488][ T2668] RSP: 002b:00007fff32027308 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  208.106957][ T2668] RAX: ffffffffffffffda RBX: 00007fff32027a40 RCX: 00007efc3e7e31e7
[  208.107412][ T2668] RDX: 0000000000000000 RSI: 00007fff32027370 RDI: 0000000000000005
[  208.107873][ T2668] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[  208.108344][ T2668] R10: 00007efc3e6db6f8 R11: 0000000000000246 R12: 00007fff32027a60
[  208.108799][ T2668] R13: 00000000686e2618 R14: 0000000000499600 R15: 00007fff3202745c
| [  208.232595][ T2669] ------------[ cut here ]------------
| [ 208.233024][ T2669] WARNING: CPU: 0 PID: 2669 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) 
| [  208.233638][ T2669] Modules linked in: ip_gre gre unix_diag cls_bpf vxlan sch_etf act_mirred cls_flower sch_ingress sch_fq [last unloaded: test_bpf]
| [  208.235069][ T2669] Tainted: [W]=WARN
[  208.235299][ T2669] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 208.235683][ T2669] 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) 
[ 208.236346][ T2669] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  208.237441][ T2669] RSP: 0018:ffffc9000286f000 EFLAGS: 00010246
[  208.237828][ T2669] RAX: 0000000000000000 RBX: ffff888009d59000 RCX: 0000000000000001
[  208.238298][ T2669] RDX: 0000000000000000 RSI: ffffffff93f10759 RDI: ffffffff93658280
[  208.238754][ T2669] RBP: ffffc9000286f0e8 R08: ffff888009d59218 R09: 0000000000000000
[  208.239226][ T2669] R10: ffffc9000286f118 R11: ffff88800a9345f0 R12: 1ffff9200050de04
[  208.239684][ T2669] R13: 00000000000005b6 R14: ffffc9000286f118 R15: ffff888009d59218
[  208.240152][ T2669] FS:  00007f5c40f5c800(0000) GS:ffff8880d6999000(0000) knlGS:0000000000000000
[  208.240687][ T2669] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  208.241076][ T2669] CR2: 0000000000436890 CR3: 0000000009dbf004 CR4: 0000000000772ef0
[  208.241536][ T2669] PKRU: 55555554
[  208.241765][ T2669] Call Trace:
[  208.242000][ T2669]  <TASK>
[ 208.242160][ T2669] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 208.242538][ T2669] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 208.242846][ T2669] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 208.243170][ T2669] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 208.243491][ T2669] netif_set_mtu (net/core/dev.c:9652) 
[ 208.243795][ T2669] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 208.244119][ T2669] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 208.244429][ T2669] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 208.244667][ T2669] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 208.244985][ T2669] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 208.245299][ T2669] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 208.245606][ T2669] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 208.246007][ T2669] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 208.246321][ T2669] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 208.246632][ T2669] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 208.246955][ T2669] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 208.247266][ T2669] ? __dev_get_by_name (net/core/dev.c:865) 
[ 208.247570][ T2669] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 208.247872][ T2669] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 208.248186][ T2669] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 208.248489][ T2669] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 208.248797][ T2669] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 208.249126][ T2669] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 208.249438][ T2669] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 208.249755][ T2669] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 208.250064][ T2669] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 208.250371][ T2669] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 208.250673][ T2669] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 208.250997][ T2669] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 208.251317][ T2669] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 208.251628][ T2669] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 208.251942][ T2669] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 208.252248][ T2669] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 208.252564][ T2669] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 208.252866][ T2669] ? 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) 
[ 208.253180][ T2669] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 208.253493][ T2669] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 208.253795][ T2669] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 208.254112][ T2669] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 208.254418][ T2669] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 208.254730][ T2669] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 208.255056][ T2669] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 208.255364][ T2669] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 208.255666][ T2669] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 208.256068][ T2669] ___sys_sendmsg (net/socket.c:2670) 
[ 208.256373][ T2669] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 208.256676][ T2669] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 208.256991][ T2669] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 208.257293][ T2669] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 208.257599][ T2669] ? __handle_mm_fault (mm/memory.c:6212) 
[ 208.257918][ T2669] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 208.258219][ T2669] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 208.258542][ T2669] __sys_sendmsg (net/socket.c:2700) 
[ 208.258847][ T2669] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 208.259169][ T2669] ? 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) 
[ 208.259486][ T2669] ? 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) 
[ 208.259790][ T2669] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 208.260111][ T2669] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 208.260418][ T2669] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  208.260797][ T2669] RIP: 0033:0x7f5c411291e7
[ 208.261123][ T2669] 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)
[  208.262218][ T2669] RSP: 002b:00007ffc4361ba28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  208.262673][ T2669] RAX: ffffffffffffffda RBX: 00007ffc4361c160 RCX: 00007f5c411291e7
[  208.263146][ T2669] RDX: 0000000000000000 RSI: 00007ffc4361ba90 RDI: 0000000000000005
[  208.263611][ T2669] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[  208.264074][ T2669] R10: 00007f5c410216f8 R11: 0000000000000246 R12: 00007ffc4361c180
[  208.264533][ T2669] R13: 00000000686e2618 R14: 0000000000499600 R15: 00007ffc4361bb7c
| [  213.003761][ T2718] ------------[ cut here ]------------
| [ 213.004168][ T2718] WARNING: CPU: 1 PID: 2718 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) 
| [  213.004866][ T2718] Modules linked in: ip_gre gre unix_diag cls_bpf vxlan sch_etf act_mirred cls_flower sch_ingress sch_fq [last unloaded: test_bpf]
| [  213.006490][ T2718] Tainted: [W]=WARN
[  213.006752][ T2718] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 213.007193][ T2718] 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) 
[ 213.007551][ T2718] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  213.008797][ T2718] RSP: 0018:ffffc900029bf000 EFLAGS: 00010246
[  213.009245][ T2718] RAX: 0000000000000000 RBX: ffff88800679c000 RCX: 0000000000000001
[  213.009765][ T2718] RDX: 0000000000000000 RSI: ffffffff93f10759 RDI: ffffffff93658280
[  213.010295][ T2718] RBP: ffffc900029bf0e8 R08: ffff88800679c218 R09: 0000000000000000
[  213.010814][ T2718] R10: ffffc900029bf118 R11: ffff88800d8845f0 R12: 1ffff92000537e04
[  213.011337][ T2718] R13: 00000000000005b6 R14: ffffc900029bf118 R15: ffff88800679c218
[  213.011852][ T2718] FS:  00007f74e0adf800(0000) GS:ffff8880d6a19000(0000) knlGS:0000000000000000
[  213.012479][ T2718] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  213.012929][ T2718] CR2: 000000000049c120 CR3: 0000000009e14003 CR4: 0000000000772ef0
[  213.013452][ T2718] PKRU: 55555554
[  213.013715][ T2718] Call Trace:
[  213.019553][ T2718]  <TASK>
[ 213.019767][ T2718] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 213.020224][ T2718] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 213.020578][ T2718] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 213.020935][ T2718] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 213.021291][ T2718] netif_set_mtu (net/core/dev.c:9652) 
[ 213.021637][ T2718] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 213.022017][ T2718] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 213.022361][ T2718] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 213.022626][ T2718] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 213.022987][ T2718] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 213.023345][ T2718] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 213.023697][ T2718] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 213.024138][ T2718] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 213.024499][ T2718] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 213.024864][ T2718] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 213.025224][ T2718] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 213.025574][ T2718] ? __dev_get_by_name (net/core/dev.c:865) 
[ 213.025928][ T2718] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 213.026282][ T2718] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 213.026633][ T2718] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 213.026984][ T2718] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 213.027335][ T2718] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 213.027690][ T2718] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 213.028051][ T2718] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 213.028415][ T2718] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 213.028758][ T2718] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 213.029120][ T2718] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 213.029466][ T2718] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 213.029812][ T2718] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 213.030169][ T2718] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 213.030520][ T2718] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 213.030865][ T2718] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 213.031223][ T2718] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 213.031585][ T2718] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 213.031938][ T2718] ? 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) 
[ 213.032295][ T2718] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 213.032642][ T2718] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 213.032996][ T2718] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 213.033347][ T2718] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 213.033926][ T2718] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 213.034284][ T2718] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 213.034637][ T2718] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 213.035006][ T2718] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 213.035571][ T2718] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 213.036013][ T2718] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 213.036373][ T2718] ___sys_sendmsg (net/socket.c:2670) 
[ 213.036721][ T2718] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 213.037084][ T2718] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 213.037429][ T2718] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 213.037779][ T2718] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 213.038142][ T2718] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 213.038713][ T2718] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 213.039069][ T2718] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 213.039419][ T2718] __sys_sendmsg (net/socket.c:2700) 
[ 213.039772][ T2718] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 213.040438][ T2718] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 213.040802][ T2718] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 213.041159][ T2718] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 213.041508][ T2718] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  213.042164][ T2718] RIP: 0033:0x7f74e0cac1e7
[ 213.042521][ T2718] 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)
[  213.043999][ T2718] RSP: 002b:00007ffc62ee3148 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  213.044524][ T2718] RAX: ffffffffffffffda RBX: 00007ffc62ee3880 RCX: 00007f74e0cac1e7
[  213.045056][ T2718] RDX: 0000000000000000 RSI: 00007ffc62ee31b0 RDI: 0000000000000005
[  213.045575][ T2718] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[  213.046097][ T2718] R10: 00007f74e0ba46f8 R11: 0000000000000246 R12: 00007ffc62ee38a0
[  213.046840][ T2718] R13: 00000000686e261d R14: 0000000000499600 R15: 00007ffc62ee329c
| [  213.187324][ T2719] ------------[ cut here ]------------
| [ 213.187715][ T2719] WARNING: CPU: 1 PID: 2719 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) 
| [  213.189267][ T2719] Modules linked in: ip_gre gre unix_diag cls_bpf vxlan sch_etf act_mirred cls_flower sch_ingress sch_fq [last unloaded: test_bpf]
| [  213.190870][ T2719] Tainted: [W]=WARN
[  213.191145][ T2719] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 213.191577][ T2719] 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) 
[ 213.191950][ T2719] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  213.193188][ T2719] RSP: 0018:ffffc900029cf000 EFLAGS: 00010246
[  213.193626][ T2719] RAX: 0000000000000000 RBX: ffff88800fb19000 RCX: 0000000000000001
[  213.194151][ T2719] RDX: 0000000000000000 RSI: ffffffff93f10759 RDI: ffffffff93658280
[  213.194678][ T2719] RBP: ffffc900029cf0e8 R08: ffff88800fb19218 R09: 0000000000000000
[  213.195212][ T2719] R10: ffffc900029cf118 R11: ffff88800ba945f0 R12: 1ffff92000539e04
[  213.195729][ T2719] R13: 00000000000005b6 R14: ffffc900029cf118 R15: ffff88800fb19218
[  213.196256][ T2719] FS:  00007f7f8fcdc800(0000) GS:ffff8880d6a19000(0000) knlGS:0000000000000000
[  213.196865][ T2719] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  213.197310][ T2719] CR2: 000000000049c120 CR3: 000000000ebee006 CR4: 0000000000772ef0
[  213.197830][ T2719] PKRU: 55555554
[  213.198097][ T2719] Call Trace:
[  213.198358][ T2719]  <TASK>
[ 213.198535][ T2719] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 213.198980][ T2719] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 213.199336][ T2719] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 213.199684][ T2719] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 213.200050][ T2719] netif_set_mtu (net/core/dev.c:9652) 
[ 213.200396][ T2719] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 213.200753][ T2719] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 213.201108][ T2719] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 213.201373][ T2719] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 213.201717][ T2719] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 213.202086][ T2719] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 213.202438][ T2719] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 213.202869][ T2719] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 213.203234][ T2719] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 213.203583][ T2719] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 213.203942][ T2719] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 213.204291][ T2719] ? __dev_get_by_name (net/core/dev.c:865) 
[ 213.204642][ T2719] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 213.205013][ T2719] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 213.205365][ T2719] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 213.205708][ T2719] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 213.206068][ T2719] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 213.206424][ T2719] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 213.206775][ T2719] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 213.207149][ T2719] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 213.207494][ T2719] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 213.207841][ T2719] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 213.208201][ T2719] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 213.208554][ T2719] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 213.208912][ T2719] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 213.209263][ T2719] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 213.209609][ T2719] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 213.209972][ T2719] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 213.210329][ T2719] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 213.210671][ T2719] ? 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) 
[ 213.211027][ T2719] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 213.211378][ T2719] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 213.211721][ T2719] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 213.212083][ T2719] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 213.212444][ T2719] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 213.212791][ T2719] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 213.213153][ T2719] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 213.213501][ T2719] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 213.213843][ T2719] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 213.214279][ T2719] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 213.214637][ T2719] ___sys_sendmsg (net/socket.c:2670) 
[ 213.215009][ T2719] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 213.215359][ T2719] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 213.215701][ T2719] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 213.216061][ T2719] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 213.216415][ T2719] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 213.216757][ T2719] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 213.217111][ T2719] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 213.217465][ T2719] __sys_sendmsg (net/socket.c:2700) 
[ 213.217807][ T2719] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 213.218246][ T2719] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 213.218608][ T2719] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 213.218964][ T2719] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 213.219312][ T2719] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  213.219738][ T2719] RIP: 0033:0x7f7f8fea91e7
[ 213.220101][ T2719] 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)
[  213.221338][ T2719] RSP: 002b:00007ffc3ba93458 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  213.221855][ T2719] RAX: ffffffffffffffda RBX: 00007ffc3ba93b90 RCX: 00007f7f8fea91e7
[  213.222384][ T2719] RDX: 0000000000000000 RSI: 00007ffc3ba934c0 RDI: 0000000000000005
[  213.222909][ T2719] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[  213.223424][ T2719] R10: 00007f7f8fda16f8 R11: 0000000000000246 R12: 00007ffc3ba93bb0
[  213.223946][ T2719] R13: 00000000686e261d R14: 0000000000499600 R15: 00007ffc3ba935ac
| [  217.302404][ T2762] ------------[ cut here ]------------
| [ 217.302759][ T2762] WARNING: CPU: 3 PID: 2762 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) 
| [  217.303392][ T2762] Modules linked in: ip_gre gre unix_diag cls_bpf vxlan sch_etf act_mirred cls_flower sch_ingress sch_fq [last unloaded: test_bpf]
| [  217.304863][ T2762] Tainted: [W]=WARN
[  217.305108][ T2762] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 217.305502][ T2762] 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) 
[ 217.305824][ T2762] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  217.306958][ T2762] RSP: 0018:ffffc90002adf000 EFLAGS: 00010246
[  217.307356][ T2762] RAX: 0000000000000000 RBX: ffff88801229c000 RCX: 0000000000000001
[  217.307827][ T2762] RDX: 0000000000000000 RSI: ffffffff93f10759 RDI: ffffffff93658280
[  217.308309][ T2762] RBP: ffffc90002adf0e8 R08: ffff88801229c218 R09: 0000000000000000
[  217.308782][ T2762] R10: ffffc90002adf118 R11: ffff88800a9c95f0 R12: 1ffff9200055be04
[  217.309261][ T2762] R13: 00000000000005b6 R14: ffffc90002adf118 R15: ffff88801229c218
[  217.309732][ T2762] FS:  00007ffa79e28800(0000) GS:ffff8880d6b19000(0000) knlGS:0000000000000000
[  217.310294][ T2762] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  217.310687][ T2762] CR2: 000000000049c120 CR3: 0000000005276002 CR4: 0000000000772ef0
[  217.311166][ T2762] PKRU: 55555554
[  217.311404][ T2762] Call Trace:
[  217.311638][ T2762]  <TASK>
[ 217.311797][ T2762] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 217.312195][ T2762] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 217.312519][ T2762] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 217.312840][ T2762] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 217.313175][ T2762] netif_set_mtu (net/core/dev.c:9652) 
[ 217.313491][ T2762] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 217.313824][ T2762] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 217.314154][ T2762] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 217.314393][ T2762] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 217.314715][ T2762] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 217.315046][ T2762] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 217.315365][ T2762] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 217.315753][ T2762] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 217.316082][ T2762] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 217.316402][ T2762] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 217.316719][ T2762] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 217.317038][ T2762] ? __dev_get_by_name (net/core/dev.c:865) 
[ 217.317350][ T2762] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 217.317663][ T2762] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 217.317989][ T2762] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 217.318300][ T2762] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 217.318622][ T2762] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 217.318953][ T2762] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 217.319274][ T2762] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 217.319602][ T2762] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 217.319921][ T2762] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 217.320238][ T2762] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 217.320550][ T2762] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 217.320865][ T2762] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 217.321197][ T2762] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 217.321517][ T2762] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 217.321830][ T2762] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 217.322152][ T2762] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 217.322477][ T2762] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 217.322787][ T2762] ? 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) 
[ 217.323108][ T2762] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 217.323430][ T2762] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 217.323741][ T2762] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 217.324067][ T2762] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 217.324384][ T2762] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 217.324701][ T2762] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 217.325028][ T2762] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 217.325348][ T2762] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 217.325661][ T2762] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 217.326059][ T2762] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 217.326387][ T2762] ___sys_sendmsg (net/socket.c:2670) 
[ 217.326934][ T2762] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 217.327252][ T2762] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 217.327565][ T2762] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 217.327881][ T2762] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 217.328437][ T2762] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 217.328750][ T2762] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 217.329070][ T2762] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 217.329387][ T2762] __sys_sendmsg (net/socket.c:2700) 
[ 217.329924][ T2762] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 217.330314][ T2762] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 217.330640][ T2762] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 217.330960][ T2762] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 217.331502][ T2762] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  217.331897][ T2762] RIP: 0033:0x7ffa79ff51e7
[ 217.332218][ T2762] 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)
[  217.333572][ T2762] RSP: 002b:00007ffe5a93aa38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  217.334056][ T2762] RAX: ffffffffffffffda RBX: 00007ffe5a93b170 RCX: 00007ffa79ff51e7
[  217.334762][ T2762] RDX: 0000000000000000 RSI: 00007ffe5a93aaa0 RDI: 0000000000000005
[  217.335238][ T2762] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[  217.335937][ T2762] R10: 00007ffa79eed6f8 R11: 0000000000000246 R12: 00007ffe5a93b190
[  217.336410][ T2762] R13: 00000000686e2621 R14: 0000000000499600 R15: 00007ffe5a93ab8c
| [  217.478050][ T2763] ------------[ cut here ]------------
| [ 217.478659][ T2763] WARNING: CPU: 2 PID: 2763 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) 
| [  217.479305][ T2763] Modules linked in: ip_gre gre unix_diag cls_bpf vxlan sch_etf act_mirred cls_flower sch_ingress sch_fq [last unloaded: test_bpf]
| [  217.480777][ T2763] Tainted: [W]=WARN
[  217.481034][ T2763] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 217.481428][ T2763] 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) 
[ 217.481755][ T2763] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  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
[  217.483049][ T2763] RSP: 0018:ffffc90002a4f000 EFLAGS: 00010246
[  217.483451][ T2763] RAX: 0000000000000000 RBX: ffff88800e75c000 RCX: 0000000000000001
[  217.483962][ T2763] RDX: 0000000000000000 RSI: ffffffff93f10759 RDI: ffffffff93658280
[  217.484441][ T2763] RBP: ffffc90002a4f0e8 R08: ffff88800e75c218 R09: 0000000000000000
[  217.484925][ T2763] R10: ffffc90002a4f118 R11: ffff88800a9cc5f0 R12: 1ffff92000549e04
[  217.485392][ T2763] R13: 00000000000005b6 R14: ffffc90002a4f118 R15: ffff88800e75c218
[  217.485861][ T2763] FS:  00007f2cb57eb800(0000) GS:ffff8880d6a99000(0000) knlGS:0000000000000000
[  217.486421][ T2763] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  217.486821][ T2763] CR2: 000000000049c120 CR3: 000000000db26005 CR4: 0000000000772ef0
[  217.487302][ T2763] PKRU: 55555554
[  217.487543][ T2763] Call Trace:
[  217.487780][ T2763]  <TASK>
[ 217.487969][ T2763] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 217.488366][ T2763] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 217.488693][ T2763] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 217.489022][ T2763] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 217.489351][ T2763] netif_set_mtu (net/core/dev.c:9652) 
[ 217.489667][ T2763] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 217.490008][ T2763] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 217.490325][ T2763] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 217.490572][ T2763] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 217.490898][ T2763] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 217.491231][ T2763] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 217.491550][ T2763] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 217.491963][ T2763] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 217.492294][ T2763] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 217.492615][ T2763] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 217.492946][ T2763] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 217.493268][ T2763] ? __dev_get_by_name (net/core/dev.c:865) 
[ 217.493585][ T2763] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 217.493913][ T2763] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 217.494237][ T2763] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 217.494552][ T2763] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 217.494881][ T2763] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 217.495224][ T2763] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 217.495548][ T2763] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 217.495905][ T2763] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 217.496224][ T2763] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 217.496547][ T2763] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 217.496866][ T2763] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 217.497198][ T2763] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 217.497520][ T2763] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 217.497845][ T2763] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 217.498175][ T2763] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 217.498499][ T2763] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 217.498831][ T2763] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 217.499160][ T2763] ? 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) 
[ 217.499481][ T2763] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 217.499801][ T2763] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 217.500140][ T2763] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 217.500472][ T2763] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 217.500795][ T2763] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 217.501123][ T2763] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 217.501448][ T2763] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 217.501765][ T2763] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 217.502096][ T2763] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 217.502488][ T2763] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 217.502824][ T2763] ___sys_sendmsg (net/socket.c:2670) 
[ 217.503153][ T2763] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 217.503474][ T2763] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 217.503789][ T2763] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 217.504134][ T2763] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 217.504463][ T2763] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 217.504793][ T2763] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 217.505119][ T2763] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 217.505449][ T2763] __sys_sendmsg (net/socket.c:2700) 
[ 217.505765][ T2763] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 217.506167][ T2763] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 217.506496][ T2763] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 217.506815][ T2763] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 217.507145][ T2763] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  217.507539][ T2763] RIP: 0033:0x7f2cb59b81e7
[ 217.507869][ T2763] 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)
[  217.508982][ T2763] RSP: 002b:00007ffece4b0e88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  217.509456][ T2763] RAX: ffffffffffffffda RBX: 00007ffece4b15c0 RCX: 00007f2cb59b81e7
[  217.509946][ T2763] RDX: 0000000000000000 RSI: 00007ffece4b0ef0 RDI: 0000000000000005
[  217.510414][ T2763] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000000
[  217.510882][ T2763] R10: 00007f2cb58b06f8 R11: 0000000000000246 R12: 00007ffece4b15e0


Finger prints:
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:ip_tunnel_newlink:ipgre_newlink