======================================
| [   22.809313][  T339] ip_gre: GRE over IPv4 tunneling driver
| [   22.860664][  T338] ------------[ cut here ]------------
| [ 22.861461][ T338] WARNING: CPU: 1 PID: 338 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   22.862591][  T338] Modules linked in: ip_gre gre 8021q dummy vrf veth
[   22.864383][  T338] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 22.865098][ T338] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 22.865695][ T338] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   22.867675][  T338] RSP: 0018:ffffc90000597000 EFLAGS: 00010246
[   22.868377][  T338] RAX: 0000000000000000 RBX: ffff8880051fc000 RCX: 0000000000000001
[   22.869225][  T338] RDX: 0000000000000000 RSI: ffffffffa4c9b941 RDI: ffffffffa44555e0
[   22.870086][  T338] RBP: ffffc900005970e8 R08: ffff8880051fc218 R09: 0000000000000000
[   22.871016][  T338] R10: ffffc90000597118 R11: dffffc0000000000 R12: 1ffff920000b2e04
[   22.871868][  T338] R13: 00000000000005c0 R14: ffffc90000597118 R15: ffff8880051fc218
[   22.872938][  T338] FS:  00007f66d7d0e800(0000) GS:ffff88808f537000(0000) knlGS:0000000000000000
[   22.874002][  T338] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.874682][  T338] CR2: 00000000004200f0 CR3: 0000000014b50003 CR4: 0000000000772ef0
[   22.875503][  T338] PKRU: 55555554
[   22.875914][  T338] Call Trace:
[   22.876347][  T338]  <TASK>
[ 22.876625][ T338] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 22.877590][ T338] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 22.878169][ T338] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.878726][ T338] netif_set_mtu (net/core/dev.c:9652) 
[ 22.879311][ T338] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 22.879872][ T338] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 22.880314][ T338] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 22.880856][ T338] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 22.881443][ T338] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 22.882032][ T338] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 22.882698][ T338] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 22.883274][ T338] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 22.883817][ T338] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 22.884386][ T338] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 22.884922][ T338] ? __dev_get_by_name (net/core/dev.c:865) 
[ 22.885479][ T338] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 22.886059][ T338] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 22.886616][ T338] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 22.887175][ T338] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 22.887725][ T338] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 22.888309][ T338] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 22.888861][ T338] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 22.889443][ T338] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 22.889978][ T338] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 22.890573][ T338] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 22.891128][ T338] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 22.891685][ T338] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 22.892249][ T338] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.892800][ T338] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 22.893357][ T338] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 22.893904][ T338] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 22.894513][ T338] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 22.895064][ T338] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 22.895617][ T338] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 22.896178][ T338] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 22.896717][ T338] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.897306][ T338] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 22.897864][ T338] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 22.898459][ T338] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 22.899028][ T338] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 22.899571][ T338] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 22.900125][ T338] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 22.900813][ T338] ___sys_sendmsg (net/socket.c:2670) 
[ 22.901359][ T338] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 22.901832][ T338] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 22.902181][ T338] ? mt_find (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 lib/maple_tree.c:6937) 
[ 22.902417][ T338] ? __handle_mm_fault (mm/memory.c:6212) 
[ 22.902721][ T338] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 22.903033][ T338] ? mt_find (lib/maple_tree.c:6938) 
[ 22.903284][ T338] __sys_sendmsg (net/socket.c:2700) 
[ 22.903623][ T338] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 22.903969][ T338] ? do_user_addr_fault (./include/linux/mmap_lock.h:440 arch/x86/mm/fault.c:1415) 
[ 22.904316][ T338] ? do_user_addr_fault (./include/linux/mmap_lock.h:440 arch/x86/mm/fault.c:1415) 
[ 22.904626][ T338] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 22.904939][ T338] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 22.905253][ T338] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   22.905632][  T338] RIP: 0033:0x7f66d7edb1e7
[ 22.905973][ T338] Code: Unable to access opcode bytes at 0x7f66d7edb1bd.

Code starting with the faulting instruction
===========================================
[   22.906379][  T338] RSP: 002b:00007ffd598dc268 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   22.906853][  T338] RAX: ffffffffffffffda RBX: 00007ffd598dc990 RCX: 00007f66d7edb1e7
[   22.907338][  T338] RDX: 0000000000000000 RSI: 00007ffd598dc2d0 RDI: 0000000000000005
[   22.907939][  T338] RBP: 000000000000000c R08: 00000000000000b0 R09: 0000000000000000
[   22.908413][  T338] R10: 00007f66d7f69ac0 R11: 0000000000000246 R12: 00007ffd598dc9b0
[   22.908890][  T338] R13: 00000000686e22c0 R14: 0000000000499600 R15: 00007ffd598dc3b4
| [   26.053380][  T373] ------------[ cut here ]------------
| [ 26.053878][ T373] WARNING: CPU: 2 PID: 373 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) 
| [   26.054556][  T373] Modules linked in: ip_gre gre 8021q dummy vrf veth
| [   26.055665][  T373] Tainted: [W]=WARN
[   26.055943][  T373] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 26.056372][ T373] 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) 
[ 26.056713][ T373] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   26.057875][  T373] RSP: 0018:ffffc900006c7000 EFLAGS: 00010246
[   26.058307][  T373] RAX: 0000000000000000 RBX: ffff888002754000 RCX: 0000000000000001
[   26.058803][  T373] RDX: 0000000000000000 RSI: ffffffffa4c9b941 RDI: ffffffffa44555e0
[   26.059301][  T373] RBP: ffffc900006c70e8 R08: ffff888002754218 R09: 0000000000000000
[   26.059783][  T373] R10: ffffc900006c7118 R11: dffffc0000000000 R12: 1ffff920000d8e04
[   26.060272][  T373] R13: 00000000000005c0 R14: ffffc900006c7118 R15: ffff888002754218
[   26.060755][  T373] FS:  00007f79f6ed2800(0000) GS:ffff88808f5b7000(0000) knlGS:0000000000000000
[   26.061329][  T373] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.061749][  T373] CR2: 0000000000406141 CR3: 0000000015d05005 CR4: 0000000000772ef0
[   26.062241][  T373] PKRU: 55555554
[   26.062486][  T373] Call Trace:
[   26.062729][  T373]  <TASK>
[ 26.062902][ T373] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 26.063322][ T373] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 26.063655][ T373] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.064015][ T373] netif_set_mtu (net/core/dev.c:9652) 
[ 26.064340][ T373] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 26.064677][ T373] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 26.064924][ T373] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 26.065263][ T373] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 26.065586][ T373] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 26.065910][ T373] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 26.066331][ T373] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 26.066659][ T373] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 26.066980][ T373] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 26.067320][ T373] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 26.067636][ T373] ? __dev_get_by_name (net/core/dev.c:865) 
[ 26.067952][ T373] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 26.068291][ T373] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 26.068625][ T373] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 26.068940][ T373] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 26.069276][ T373] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 26.069606][ T373] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 26.069930][ T373] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 26.070280][ T373] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 26.070596][ T373] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.070918][ T373] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 26.071256][ T373] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 26.071577][ T373] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 26.071907][ T373] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.072245][ T373] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 26.072562][ T373] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 26.072884][ T373] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 26.073227][ T373] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 26.073553][ T373] ? 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) 
[ 26.073879][ T373] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 26.074216][ T373] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 26.074557][ T373] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.074885][ T373] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 26.075223][ T373] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 26.075543][ T373] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 26.075874][ T373] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 26.076210][ T373] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 26.076527][ T373] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 26.076931][ T373] ___sys_sendmsg (net/socket.c:2670) 
[ 26.077262][ T373] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 26.077579][ T373] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 26.077913][ T373] ? mt_find (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 lib/maple_tree.c:6937) 
[ 26.078188][ T373] ? __handle_mm_fault (mm/memory.c:6212) 
[ 26.078509][ T373] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 26.078824][ T373] ? mt_find (lib/maple_tree.c:6938) 
[ 26.079098][ T373] __sys_sendmsg (net/socket.c:2700) 
[ 26.079414][ T373] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 26.079836][ T373] ? do_user_addr_fault (./include/linux/mmap_lock.h:440 arch/x86/mm/fault.c:1415) 
[ 26.080183][ T373] ? do_user_addr_fault (./include/linux/mmap_lock.h:440 arch/x86/mm/fault.c:1415) 
[ 26.080510][ T373] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.080832][ T373] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 26.081167][ T373] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   26.081566][  T373] RIP: 0033:0x7f79f709f1e7
[ 26.081912][ T373] 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)
[   26.083040][  T373] RSP: 002b:00007fffbf56f818 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   26.083519][  T373] RAX: ffffffffffffffda RBX: 00007fffbf56ff40 RCX: 00007f79f709f1e7
[   26.084005][  T373] RDX: 0000000000000000 RSI: 00007fffbf56f880 RDI: 0000000000000005
[   26.084484][  T373] RBP: 000000000000000c R08: 00000000000000b0 R09: 0000000000000000
[   26.084953][  T373] R10: 00007f79f712dac0 R11: 0000000000000246 R12: 00007fffbf56ff60
[   26.085440][  T373] R13: 00000000686e22c3 R14: 0000000000499600 R15: 00007fffbf56f964
| [   35.850053][  T419] ------------[ cut here ]------------
| [ 35.850486][ T419] WARNING: CPU: 1 PID: 419 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) 
| [   35.852120][  T419] Modules linked in: ip_gre gre 8021q dummy vrf veth
| [   35.853164][  T419] Tainted: [W]=WARN
[   35.853375][  T419] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 35.853720][ T419] 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) 
[ 35.854014][ T419] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   35.855013][  T419] RSP: 0018:ffffc90000b07140 EFLAGS: 00010246
[   35.855385][  T419] RAX: 0000000000000000 RBX: ffff88800f8c9000 RCX: 0000000000000001
[   35.855821][  T419] RDX: 0000000000000000 RSI: ffffffffa4c9b941 RDI: ffffffffa44555e0
[   35.856274][  T419] RBP: ffffc90000b07230 R08: ffff8880107f2000 R09: 0000000000000000
[   35.856711][  T419] R10: ffffc90000b075c8 R11: ffffffffa5a50668 R12: 1ffff92000160e2c
[   35.857155][  T419] R13: 00000000000007d0 R14: ffffc90000b07880 R15: ffff888014881560
[   35.857585][  T419] FS:  00007f4d37a9f800(0000) GS:ffff88808f537000(0000) knlGS:0000000000000000
[   35.858100][  T419] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.858467][  T419] CR2: 00000000004e5aa0 CR3: 0000000004d9a004 CR4: 0000000000772ef0
[   35.859128][  T419] PKRU: 55555554
[   35.859352][  T419] Call Trace:
[   35.859568][  T419]  <TASK>
[ 35.859715][ T419] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.860032][ T419] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 35.860323][ T419] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.860614][ T419] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 35.860902][ T419] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 35.861205][ T419] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 35.861504][ T419] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 35.861813][ T419] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 35.862192][ T419] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 35.862482][ T419] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 35.862766][ T419] ? __kernel_text_address (kernel/extable.c:79) 
[ 35.863065][ T419] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.863361][ T419] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 35.863650][ T419] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 35.864020][ T419] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.864314][ T419] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.864603][ T419] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 35.864914][ T419] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 35.865218][ T419] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.865505][ T419] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 35.865789][ T419] ? __create_object (mm/kmemleak.c:771) 
[ 35.866089][ T419] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 35.866382][ T419] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 35.866695][ T419] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 35.867077][ T419] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 35.867382][ T419] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 35.867676][ T419] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.867964][ T419] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.868267][ T419] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.868560][ T419] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 35.868847][ T419] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.869147][ T419] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.869442][ T419] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 35.869735][ T419] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.870036][ T419] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.870331][ T419] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 35.870624][ T419] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.870914][ T419] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 35.871221][ T419] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 35.871516][ T419] ? 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) 
[ 35.871816][ T419] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 35.872118][ T419] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 35.872408][ T419] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.872704][ T419] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 35.873010][ T419] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 35.873301][ T419] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 35.873609][ T419] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 35.873904][ T419] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 35.874204][ T419] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 35.874579][ T419] ___sys_sendmsg (net/socket.c:2670) 
[ 35.874865][ T419] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 35.875168][ T419] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 35.875531][ T419] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 35.875830][ T419] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.876131][ T419] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.876428][ T419] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.876718][ T419] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 35.877018][ T419] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.877316][ T419] __sys_sendmsg (net/socket.c:2700) 
[ 35.877603][ T419] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 35.877963][ T419] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 35.878278][ T419] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.878573][ T419] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 35.878872][ T419] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   35.879249][  T419] RIP: 0033:0x7f4d37c6c1e7
[ 35.879557][ T419] 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)
[   35.880606][  T419] RSP: 002b:00007ffe1bda5938 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   35.881057][  T419] RAX: ffffffffffffffda RBX: 00007ffe1bda6060 RCX: 00007f4d37c6c1e7
[   35.881494][  T419] RDX: 0000000000000000 RSI: 00007ffe1bda59a0 RDI: 0000000000000005
[   35.881941][  T419] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   35.882394][  T419] R10: 00007f4d37b69ee8 R11: 0000000000000246 R12: 0000000000000004
[   35.882829][  T419] R13: 00000000686e22cd R14: 0000000000499600 R15: 0000000000000000
| [   36.014488][  T420] ------------[ cut here ]------------
| [ 36.014802][ T420] WARNING: CPU: 3 PID: 420 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) 
| [   36.015396][  T420] Modules linked in: ip_gre gre 8021q dummy vrf veth
| [   36.016333][  T420] Tainted: [W]=WARN
[   36.016540][  T420] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 36.016879][ T420] 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) 
[ 36.017178][ T420] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   36.018196][  T420] RSP: 0018:ffffc90000b17140 EFLAGS: 00010246
[   36.018545][  T420] RAX: 0000000000000000 RBX: ffff88800faf9000 RCX: 0000000000000001
[   36.018952][  T420] RDX: 0000000000000000 RSI: ffffffffa4c9b941 RDI: ffffffffa44555e0
[   36.019406][  T420] RBP: ffffc90000b17230 R08: ffff8880136bd000 R09: 0000000000000000
[   36.019819][  T420] R10: ffffc90000b175c8 R11: ffffffffa5a50668 R12: 1ffff92000162e2c
[   36.020239][  T420] R13: 00000000000007d0 R14: ffffc90000b17880 R15: ffff888011a074e0
[   36.020648][  T420] FS:  00007f15d067b800(0000) GS:ffff88808f637000(0000) knlGS:0000000000000000
[   36.021135][  T420] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.021482][  T420] CR2: 00000000004e5aa8 CR3: 0000000014abb004 CR4: 0000000000772ef0
[   36.021906][  T420] PKRU: 55555554
[   36.022125][  T420] Call Trace:
[   36.022342][  T420]  <TASK>
[ 36.022490][ T420] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.022786][ T420] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 36.023087][ T420] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.023412][ T420] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 36.023706][ T420] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 36.024022][ T420] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 36.024314][ T420] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 36.024608][ T420] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 36.024975][ T420] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 36.025273][ T420] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 36.025566][ T420] ? __kernel_text_address (kernel/extable.c:79) 
[ 36.025860][ T420] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.026148][ T420] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 36.026423][ T420] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 36.026765][ T420] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.027049][ T420] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.027357][ T420] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 36.027635][ T420] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 36.027912][ T420] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.028203][ T420] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 36.028475][ T420] ? __create_object (mm/kmemleak.c:771) 
[ 36.028753][ T420] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 36.029035][ T420] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 36.029310][ T420] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 36.029648][ T420] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 36.029936][ T420] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 36.030222][ T420] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 36.030494][ T420] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.030773][ T420] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.031054][ T420] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 36.031349][ T420] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.031633][ T420] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 36.031911][ T420] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 36.032232][ T420] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 36.032510][ T420] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.032789][ T420] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 36.033072][ T420] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 36.033355][ T420] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 36.033639][ T420] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 36.033914][ T420] ? 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) 
[ 36.034204][ T420] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 36.034486][ T420] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 36.034759][ T420] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.035048][ T420] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 36.035328][ T420] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 36.035605][ T420] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 36.035886][ T420] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 36.036207][ T420] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 36.036493][ T420] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 36.036846][ T420] ___sys_sendmsg (net/socket.c:2670) 
[ 36.037131][ T420] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 36.037421][ T420] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 36.037784][ T420] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 36.038088][ T420] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.038386][ T420] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.038666][ T420] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.038940][ T420] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 36.039220][ T420] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.039502][ T420] __sys_sendmsg (net/socket.c:2700) 
[ 36.039773][ T420] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 36.040148][ T420] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 36.040449][ T420] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.040725][ T420] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 36.041012][ T420] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   36.041353][  T420] RIP: 0033:0x7f15d08481e7
[ 36.041644][ T420] 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)
[   36.042647][  T420] RSP: 002b:00007fff43a13b98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   36.043069][  T420] RAX: ffffffffffffffda RBX: 00007fff43a142c0 RCX: 00007f15d08481e7
[   36.043481][  T420] RDX: 0000000000000000 RSI: 00007fff43a13c00 RDI: 0000000000000005
[   36.043889][  T420] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   36.044311][  T420] R10: 00007f15d0745ee8 R11: 0000000000000246 R12: 0000000000000004
[   36.044722][  T420] R13: 00000000686e22cd R14: 0000000000499600 R15: 0000000000000000
| [   36.171201][  T421] ------------[ cut here ]------------
| [ 36.171589][ T421] WARNING: CPU: 2 PID: 421 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) 
| [   36.172223][  T421] Modules linked in: ip_gre gre 8021q dummy vrf veth
| [   36.173695][  T421] Tainted: [W]=WARN
[   36.173934][  T421] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 36.174321][ T421] 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) 
[ 36.174649][ T421] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   36.175719][  T421] RSP: 0018:ffffc90000b27140 EFLAGS: 00010246
[   36.176146][  T421] RAX: 0000000000000000 RBX: ffff8880051fc000 RCX: 0000000000000001
[   36.176600][  T421] RDX: 0000000000000000 RSI: ffffffffa4c9b941 RDI: ffffffffa44555e0
[   36.177072][  T421] RBP: ffffc90000b27230 R08: ffff8880125fd000 R09: 0000000000000000
[   36.177526][  T421] R10: ffffc90000b275c8 R11: ffffffffa5a50668 R12: 1ffff92000164e2c
[   36.177973][  T421] R13: 00000000000007d0 R14: ffffc90000b27880 R15: ffff888011a04060
[   36.178435][  T421] FS:  00007ff296cac800(0000) GS:ffff88808f5b7000(0000) knlGS:0000000000000000
[   36.178973][  T421] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.179373][  T421] CR2: 00000000004e73d0 CR3: 0000000012408003 CR4: 0000000000772ef0
[   36.179826][  T421] PKRU: 55555554
[   36.180067][  T421] Call Trace:
[   36.180302][  T421]  <TASK>
[ 36.180462][ T421] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.180773][ T421] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 36.181099][ T421] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.181412][ T421] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 36.181738][ T421] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 36.182057][ T421] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 36.182367][ T421] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 36.182676][ T421] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 36.183074][ T421] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 36.183385][ T421] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 36.183687][ T421] ? __kernel_text_address (kernel/extable.c:79) 
[ 36.184037][ T421] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.184349][ T421] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 36.184650][ T421] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 36.185035][ T421] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.185339][ T421] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.185644][ T421] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 36.185943][ T421] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 36.186260][ T421] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.186562][ T421] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 36.186864][ T421] ? __create_object (mm/kmemleak.c:771) 
[ 36.187184][ T421] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 36.187490][ T421] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 36.187791][ T421] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 36.188190][ T421] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 36.188499][ T421] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 36.188809][ T421] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 36.189149][ T421] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.189467][ T421] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.189769][ T421] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 36.190082][ T421] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.190396][ T421] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 36.190702][ T421] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 36.191016][ T421] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 36.191326][ T421] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.191642][ T421] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 36.191951][ T421] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 36.192267][ T421] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 36.192585][ T421] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 36.192894][ T421] ? 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) 
[ 36.193217][ T421] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 36.193523][ T421] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 36.193827][ T421] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.194166][ T421] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 36.194477][ T421] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 36.194780][ T421] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 36.195112][ T421] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 36.195420][ T421] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 36.195725][ T421] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 36.196123][ T421] ___sys_sendmsg (net/socket.c:2670) 
[ 36.196432][ T421] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 36.196735][ T421] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 36.197121][ T421] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 36.197437][ T421] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.197745][ T421] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.198067][ T421] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.198373][ T421] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 36.198678][ T421] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.199040][ T421] __sys_sendmsg (net/socket.c:2700) 
[ 36.199345][ T421] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 36.199729][ T421] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 36.200053][ T421] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.200359][ T421] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 36.200664][ T421] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   36.201048][  T421] RIP: 0033:0x7ff296e791e7
[ 36.201364][ T421] 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)
[   36.202450][  T421] RSP: 002b:00007ffc5984cf58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   36.202907][  T421] RAX: ffffffffffffffda RBX: 00007ffc5984d680 RCX: 00007ff296e791e7
[   36.203387][  T421] RDX: 0000000000000000 RSI: 00007ffc5984cfc0 RDI: 0000000000000005
[   36.203843][  T421] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   36.204303][  T421] R10: 00007ff296d76ee8 R11: 0000000000000246 R12: 0000000000000004
[   36.204748][  T421] R13: 00000000686e22cd R14: 0000000000499600 R15: 0000000000000000
| [   36.332162][  T422] ------------[ cut here ]------------
| [ 36.332556][ T422] WARNING: CPU: 2 PID: 422 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) 
| [   36.333445][  T422] Modules linked in: ip_gre gre 8021q dummy vrf veth
| [   36.334550][  T422] Tainted: [W]=WARN
[   36.334807][  T422] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 36.335231][ T422] 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) 
[ 36.335581][ T422] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   36.336725][  T422] RSP: 0018:ffffc90000b37140 EFLAGS: 00010246
[   36.337153][  T422] RAX: 0000000000000000 RBX: ffff88800f7c9000 RCX: 0000000000000001
[   36.337634][  T422] RDX: 0000000000000000 RSI: ffffffffa4c9b941 RDI: ffffffffa44555e0
[   36.338140][  T422] RBP: ffffc90000b37230 R08: ffff8880050e2000 R09: 0000000000000000
[   36.338625][  T422] R10: ffffc90000b375c8 R11: ffffffffa5a50668 R12: 1ffff92000166e2c
[   36.339121][  T422] R13: 00000000000007d0 R14: ffffc90000b37880 R15: ffff888011a058e0
[   36.339606][  T422] FS:  00007f6117fb5800(0000) GS:ffff88808f5b7000(0000) knlGS:0000000000000000
[   36.340196][  T422] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.340612][  T422] CR2: 00000000004e5ab0 CR3: 0000000011247004 CR4: 0000000000772ef0
[   36.341112][  T422] PKRU: 55555554
[   36.341364][  T422] Call Trace:
[   36.341627][  T422]  <TASK>
[ 36.341807][ T422] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.342159][ T422] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 36.342497][ T422] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.342828][ T422] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 36.343187][ T422] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 36.343519][ T422] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 36.343851][ T422] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 36.344196][ T422] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 36.344611][ T422] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 36.344944][ T422] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 36.345283][ T422] ? __kernel_text_address (kernel/extable.c:79) 
[ 36.345615][ T422] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.345947][ T422] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 36.346288][ T422] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 36.346698][ T422] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.347040][ T422] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.347386][ T422] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 36.347714][ T422] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 36.348061][ T422] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.348392][ T422] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 36.348723][ T422] ? __create_object (mm/kmemleak.c:771) 
[ 36.349068][ T422] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 36.349403][ T422] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 36.349728][ T422] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 36.350151][ T422] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 36.350488][ T422] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 36.350825][ T422] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 36.351177][ T422] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.351516][ T422] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.351859][ T422] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 36.352202][ T422] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.352542][ T422] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 36.352870][ T422] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 36.353217][ T422] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 36.353551][ T422] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.353883][ T422] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 36.354226][ T422] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 36.354557][ T422] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 36.354898][ T422] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 36.355251][ T422] ? 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) 
[ 36.355584][ T422] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 36.355949][ T422] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 36.356269][ T422] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.356581][ T422] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 36.356891][ T422] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 36.357206][ T422] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 36.357526][ T422] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 36.357834][ T422] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 36.358149][ T422] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 36.358536][ T422] ___sys_sendmsg (net/socket.c:2670) 
[ 36.358838][ T422] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 36.359151][ T422] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 36.359526][ T422] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 36.359840][ T422] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.360161][ T422] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.360471][ T422] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.360776][ T422] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 36.361090][ T422] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.361407][ T422] __sys_sendmsg (net/socket.c:2700) 
[ 36.361719][ T422] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 36.362113][ T422] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 36.362433][ T422] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.362749][ T422] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 36.363073][ T422] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   36.363451][  T422] RIP: 0033:0x7f61181821e7
[ 36.363763][ T422] 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)
[   36.364830][  T422] RSP: 002b:00007fff872819a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   36.365301][  T422] RAX: ffffffffffffffda RBX: 00007fff872820d0 RCX: 00007f61181821e7
[   36.365752][  T422] RDX: 0000000000000000 RSI: 00007fff87281a10 RDI: 0000000000000005
[   36.366219][  T422] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   36.366670][  T422] R10: 00007f611807fee8 R11: 0000000000000246 R12: 0000000000000004
[   36.367132][  T422] R13: 00000000686e22ce R14: 0000000000499600 R15: 0000000000000000
| [   36.498031][  T423] ------------[ cut here ]------------
| [ 36.498426][ T423] WARNING: CPU: 2 PID: 423 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) 
| [   36.499406][  T423] Modules linked in: ip_gre gre 8021q dummy vrf veth
| [   36.500517][  T423] Tainted: [W]=WARN
[   36.500771][  T423] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 36.501191][ T423] 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) 
[ 36.501534][ T423] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   36.502687][  T423] RSP: 0018:ffffc90000b47140 EFLAGS: 00010246
[   36.503109][  T423] RAX: 0000000000000000 RBX: ffff88800eeb9000 RCX: 0000000000000001
[   36.503592][  T423] RDX: 0000000000000000 RSI: ffffffffa4c9b941 RDI: ffffffffa44555e0
[   36.504088][  T423] RBP: ffffc90000b47230 R08: ffff888005135000 R09: 0000000000000000
[   36.504569][  T423] R10: ffffc90000b475c8 R11: ffffffffa5a50668 R12: 1ffff92000168e2c
[   36.505064][  T423] R13: 00000000000007d0 R14: ffffc90000b47880 R15: ffff888011a07be0
[   36.505546][  T423] FS:  00007f07ffd05800(0000) GS:ffff88808f5b7000(0000) knlGS:0000000000000000
[   36.506123][  T423] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.506533][  T423] CR2: 00000000004e55b8 CR3: 000000001263d006 CR4: 0000000000772ef0
[   36.507027][  T423] PKRU: 55555554
[   36.507281][  T423] Call Trace:
[   36.507539][  T423]  <TASK>
[ 36.507715][ T423] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.508062][ T423] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 36.508392][ T423] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.508730][ T423] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 36.509079][ T423] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 36.509412][ T423] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 36.509743][ T423] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 36.510087][ T423] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 36.510499][ T423] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 36.510841][ T423] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 36.511180][ T423] ? __kernel_text_address (kernel/extable.c:79) 
[ 36.511515][ T423] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.511860][ T423] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 36.512203][ T423] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 36.512607][ T423] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.512937][ T423] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.513280][ T423] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 36.513615][ T423] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 36.513950][ T423] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.514290][ T423] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 36.514621][ T423] ? __create_object (mm/kmemleak.c:771) 
[ 36.514950][ T423] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 36.515291][ T423] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 36.515624][ T423] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 36.516049][ T423] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 36.516385][ T423] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 36.516720][ T423] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 36.517061][ T423] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.517398][ T423] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.517725][ T423] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 36.518061][ T423] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.518394][ T423] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 36.518726][ T423] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 36.519065][ T423] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 36.519400][ T423] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.519732][ T423] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 36.520087][ T423] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 36.520425][ T423] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 36.520765][ T423] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 36.521106][ T423] ? 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) 
[ 36.521440][ T423] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 36.521784][ T423] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 36.522129][ T423] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.522466][ T423] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 36.522800][ T423] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 36.523141][ T423] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 36.523489][ T423] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 36.523823][ T423] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 36.524160][ T423] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 36.524576][ T423] ___sys_sendmsg (net/socket.c:2670) 
[ 36.524902][ T423] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 36.525245][ T423] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 36.525660][ T423] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 36.526012][ T423] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.526348][ T423] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.526681][ T423] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.527020][ T423] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 36.527348][ T423] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.527685][ T423] __sys_sendmsg (net/socket.c:2700) 
[ 36.528024][ T423] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 36.528432][ T423] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 36.528773][ T423] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.529116][ T423] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 36.529454][ T423] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   36.529858][  T423] RIP: 0033:0x7f07ffed21e7
[ 36.530208][ T423] 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)
[   36.531344][  T423] RSP: 002b:00007ffda9fde7e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   36.531844][  T423] RAX: ffffffffffffffda RBX: 00007ffda9fdef10 RCX: 00007f07ffed21e7
[   36.532339][  T423] RDX: 0000000000000000 RSI: 00007ffda9fde850 RDI: 0000000000000005
[   36.532819][  T423] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   36.533317][  T423] R10: 00007f07ffdcfee8 R11: 0000000000000246 R12: 0000000000000004
[   36.533796][  T423] R13: 00000000686e22ce R14: 0000000000499600 R15: 0000000000000000
| [   36.645172][  T424] ------------[ cut here ]------------
| [ 36.645487][ T424] WARNING: CPU: 1 PID: 424 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) 
| [   36.647527][  T424] Modules linked in: ip_gre gre 8021q dummy vrf veth
| [   36.648661][  T424] Tainted: [W]=WARN
[   36.648879][  T424] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 36.649268][ T424] 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) 
[ 36.649585][ T424] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   36.650643][  T424] RSP: 0018:ffffc90000b57140 EFLAGS: 00010246
[   36.651021][  T424] RAX: 0000000000000000 RBX: ffff888005301000 RCX: 0000000000000001
[   36.651458][  T424] RDX: 0000000000000000 RSI: ffffffffa4c9b941 RDI: ffffffffa44555e0
[   36.651906][  T424] RBP: ffffc90000b57230 R08: ffff88801496d000 R09: 0000000000000000
[   36.652362][  T424] R10: ffffc90000b575c8 R11: ffffffffa5a50668 R12: 1ffff9200016ae2c
[   36.652798][  T424] R13: 00000000000007d0 R14: ffffc90000b57880 R15: ffff888011a043e0
[   36.653242][  T424] FS:  00007fc59926c800(0000) GS:ffff88808f537000(0000) knlGS:0000000000000000
[   36.653752][  T424] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.654136][  T424] CR2: 00000000004e5ac8 CR3: 0000000014af5005 CR4: 0000000000772ef0
[   36.654575][  T424] PKRU: 55555554
[   36.654793][  T424] Call Trace:
[   36.655023][  T424]  <TASK>
[ 36.655173][ T424] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.655472][ T424] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 36.655763][ T424] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.656069][ T424] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 36.656366][ T424] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 36.656659][ T424] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 36.656953][ T424] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 36.657263][ T424] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 36.657630][ T424] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 36.657921][ T424] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 36.658229][ T424] ? __kernel_text_address (kernel/extable.c:79) 
[ 36.658663][ T424] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.658942][ T424] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 36.659229][ T424] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 36.659570][ T424] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.659843][ T424] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.660128][ T424] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 36.660407][ T424] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 36.660694][ T424] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.660975][ T424] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 36.661257][ T424] ? __create_object (mm/kmemleak.c:771) 
[ 36.661533][ T424] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 36.661823][ T424] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 36.662108][ T424] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 36.662451][ T424] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 36.662742][ T424] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 36.663030][ T424] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 36.663301][ T424] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.663585][ T424] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.663873][ T424] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 36.664157][ T424] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.664433][ T424] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 36.664719][ T424] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 36.665018][ T424] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 36.665296][ T424] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.665573][ T424] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 36.665855][ T424] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 36.666140][ T424] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 36.666438][ T424] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 36.666708][ T424] ? 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) 
[ 36.667021][ T424] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 36.667299][ T424] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 36.667583][ T424] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.667863][ T424] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 36.668159][ T424] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 36.668448][ T424] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 36.668732][ T424] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 36.669054][ T424] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 36.669328][ T424] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 36.669679][ T424] ___sys_sendmsg (net/socket.c:2670) 
[ 36.669948][ T424] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 36.670228][ T424] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 36.670592][ T424] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 36.670867][ T424] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.671162][ T424] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.671455][ T424] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.671758][ T424] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 36.672042][ T424] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.672355][ T424] __sys_sendmsg (net/socket.c:2700) 
[ 36.672642][ T424] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 36.672982][ T424] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 36.673290][ T424] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.673571][ T424] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 36.673846][ T424] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   36.674193][  T424] RIP: 0033:0x7fc5994391e7
[ 36.674483][ T424] 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)
[   36.675484][  T424] RSP: 002b:00007ffd35937978 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   36.675897][  T424] RAX: ffffffffffffffda RBX: 00007ffd359380a0 RCX: 00007fc5994391e7
[   36.676313][  T424] RDX: 0000000000000000 RSI: 00007ffd359379e0 RDI: 0000000000000005
[   36.676724][  T424] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   36.677144][  T424] R10: 00007fc599336ee8 R11: 0000000000000246 R12: 0000000000000004
[   36.677567][  T424] R13: 00000000686e22ce R14: 0000000000499600 R15: 0000000000000000
| [   36.809591][  T425] ------------[ cut here ]------------
| [ 36.810060][ T425] WARNING: CPU: 0 PID: 425 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) 
| [   36.810770][  T425] Modules linked in: ip_gre gre 8021q dummy vrf veth
| [   36.813055][  T425] Tainted: [W]=WARN
[   36.813272][  T425] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 36.813619][ T425] 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) 
[ 36.813987][ T425] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   36.815059][  T425] RSP: 0018:ffffc90000b67140 EFLAGS: 00010246
[   36.815412][  T425] RAX: 0000000000000000 RBX: ffff888007831000 RCX: 0000000000000001
[   36.815829][  T425] RDX: 0000000000000000 RSI: ffffffffa4c9b941 RDI: ffffffffa44555e0
[   36.816260][  T425] RBP: ffffc90000b67230 R08: ffff888005462000 R09: 0000000000000000
[   36.816671][  T425] R10: ffffc90000b675c8 R11: ffffffffa5a50668 R12: 1ffff9200016ce2c
[   36.817125][  T425] R13: 00000000000007d0 R14: ffffc90000b67880 R15: ffff888015705c60
[   36.817536][  T425] FS:  00007fc884ec6800(0000) GS:ffff88808f4b7000(0000) knlGS:0000000000000000
[   36.818162][  T425] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.818508][  T425] CR2: 00000000004e5ac0 CR3: 0000000010200003 CR4: 0000000000772ef0
[   36.818936][  T425] PKRU: 55555554
[   36.819153][  T425] Call Trace:
[   36.819358][  T425]  <TASK>
[ 36.819496][ T425] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.819777][ T425] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 36.820081][ T425] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.820360][ T425] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 36.820634][ T425] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 36.820984][ T425] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 36.821321][ T425] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 36.821602][ T425] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 36.822041][ T425] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 36.822356][ T425] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 36.822682][ T425] ? __kernel_text_address (kernel/extable.c:79) 
[ 36.823027][ T425] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.823308][ T425] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 36.823585][ T425] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 36.824041][ T425] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.824433][ T425] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.824801][ T425] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 36.825302][ T425] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 36.825788][ T425] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.826297][ T425] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 36.826777][ T425] ? __create_object (mm/kmemleak.c:771) 
[ 36.827205][ T425] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 36.827485][ T425] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 36.827769][ T425] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 36.828136][ T425] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 36.828421][ T425] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 36.828710][ T425] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 36.829006][ T425] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.829296][ T425] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.829572][ T425] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 36.829871][ T425] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.830180][ T425] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 36.830455][ T425] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 36.830837][ T425] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 36.831189][ T425] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.831496][ T425] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 36.831781][ T425] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 36.832135][ T425] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 36.832479][ T425] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 36.832792][ T425] ? 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) 
[ 36.833092][ T425] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 36.833378][ T425] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 36.833705][ T425] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.834063][ T425] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 36.834389][ T425] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 36.834735][ T425] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 36.835156][ T425] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 36.835524][ T425] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 36.835976][ T425] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 36.836520][ T425] ___sys_sendmsg (net/socket.c:2670) 
[ 36.836847][ T425] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 36.837190][ T425] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 36.837682][ T425] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 36.838109][ T425] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.838465][ T425] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.838812][ T425] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.839208][ T425] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 36.839688][ T425] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.840199][ T425] __sys_sendmsg (net/socket.c:2700) 
[ 36.840679][ T425] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 36.841305][ T425] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 36.841734][ T425] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.842046][ T425] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 36.842373][ T425] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   36.842763][  T425] RIP: 0033:0x7fc8850931e7
[ 36.843123][ T425] 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)
[   36.844503][  T425] RSP: 002b:00007ffd7db43a48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   36.845254][  T425] RAX: ffffffffffffffda RBX: 00007ffd7db44170 RCX: 00007fc8850931e7
[   36.845670][  T425] RDX: 0000000000000000 RSI: 00007ffd7db43ab0 RDI: 0000000000000005
[   36.846117][  T425] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   36.846625][  T425] R10: 00007fc884f90ee8 R11: 0000000000000246 R12: 0000000000000004
[   36.847113][  T425] R13: 00000000686e22ce R14: 0000000000499600 R15: 0000000000000000
| [   36.971816][  T426] ------------[ cut here ]------------
| [ 36.972215][ T426] WARNING: CPU: 2 PID: 426 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) 
| [   36.972838][  T426] Modules linked in: ip_gre gre 8021q dummy vrf veth
| [   36.973867][  T426] Tainted: [W]=WARN
[   36.975597][  T426] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 36.976025][ T426] 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) 
[ 36.976359][ T426] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   36.977419][  T426] RSP: 0018:ffffc90000707140 EFLAGS: 00010246
[   36.977801][  T426] RAX: 0000000000000000 RBX: ffff888002754000 RCX: 0000000000000001
[   36.978265][  T426] RDX: 0000000000000000 RSI: ffffffffa4c9b941 RDI: ffffffffa44555e0
[   36.978724][  T426] RBP: ffffc90000707230 R08: ffff8880103d5000 R09: 0000000000000000
[   36.979221][  T426] R10: ffffc900007075c8 R11: ffffffffa5a50668 R12: 1ffff920000e0e2c
[   36.979672][  T426] R13: 00000000000007d0 R14: ffffc90000707880 R15: ffff888015704ae0
[   36.980130][  T426] FS:  00007f8092ab9800(0000) GS:ffff88808f5b7000(0000) knlGS:0000000000000000
[   36.980674][  T426] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.981075][  T426] CR2: 00000000004e73f8 CR3: 00000000103ed002 CR4: 0000000000772ef0
[   36.981539][  T426] PKRU: 55555554
[   36.981796][  T426] Call Trace:
[   36.982040][  T426]  <TASK>
[ 36.982207][ T426] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.982533][ T426] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 36.982844][ T426] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.983170][ T426] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 36.983479][ T426] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 36.983788][ T426] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 36.984113][ T426] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 36.984429][ T426] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 36.984819][ T426] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 36.985149][ T426] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 36.985463][ T426] ? __kernel_text_address (kernel/extable.c:79) 
[ 36.985774][ T426] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.986115][ T426] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 36.986425][ T426] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 36.986807][ T426] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.987158][ T426] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.987496][ T426] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 36.987809][ T426] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 36.988128][ T426] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.988439][ T426] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 36.988746][ T426] ? __create_object (mm/kmemleak.c:771) 
[ 36.989071][ T426] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 36.989384][ T426] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 36.989702][ T426] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 36.990093][ T426] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 36.990415][ T426] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 36.990730][ T426] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 36.991052][ T426] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.991401][ T426] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.991736][ T426] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 36.992063][ T426] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.992379][ T426] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 36.992689][ T426] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 36.993016][ T426] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 36.993331][ T426] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.993651][ T426] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 36.993965][ T426] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 36.994288][ T426] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 36.994618][ T426] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 36.994926][ T426] ? 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) 
[ 36.995286][ T426] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 36.995605][ T426] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 36.995914][ T426] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.996240][ T426] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 36.996558][ T426] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 36.996875][ T426] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 36.997239][ T426] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 36.997568][ T426] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 36.997878][ T426] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 36.998285][ T426] ___sys_sendmsg (net/socket.c:2670) 
[ 36.998596][ T426] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 36.998901][ T426] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 36.999305][ T426] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 36.999620][ T426] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.999934][ T426] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 37.000260][ T426] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 37.000577][ T426] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 37.000888][ T426] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 37.001255][ T426] __sys_sendmsg (net/socket.c:2700) 
[ 37.001579][ T426] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 37.001981][ T426] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 37.002318][ T426] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 37.002634][ T426] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 37.002945][ T426] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   37.003336][  T426] RIP: 0033:0x7f8092c861e7
[ 37.003658][ T426] 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)
[   37.004757][  T426] RSP: 002b:00007ffe1dc67568 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   37.005265][  T426] RAX: ffffffffffffffda RBX: 00007ffe1dc67c90 RCX: 00007f8092c861e7
[   37.005729][  T426] RDX: 0000000000000000 RSI: 00007ffe1dc675d0 RDI: 0000000000000005
[   37.006205][  T426] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   37.006664][  T426] R10: 00007f8092b83ee8 R11: 0000000000000246 R12: 0000000000000004
[   37.007128][  T426] R13: 00000000686e22ce R14: 0000000000499600 R15: 0000000000000000
| [   37.132176][  T427] ------------[ cut here ]------------
| [ 37.132510][ T427] WARNING: CPU: 1 PID: 427 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) 
| [   37.133140][  T427] Modules linked in: ip_gre gre 8021q dummy vrf veth
| [   37.134146][  T427] Tainted: [W]=WARN
[   37.134371][  T427] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 37.134743][ T427] 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) 
[ 37.135082][ T427] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   37.136349][  T427] RSP: 0018:ffffc90000b67140 EFLAGS: 00010246
[   37.136730][  T427] RAX: 0000000000000000 RBX: ffff88800f6f1000 RCX: 0000000000000001
[   37.137184][  T427] RDX: 0000000000000000 RSI: ffffffffa4c9b941 RDI: ffffffffa44555e0
[   37.137632][  T427] RBP: ffffc90000b67230 R08: ffff888012a40800 R09: 0000000000000000
[   37.138083][  T427] R10: ffffc90000b675c8 R11: ffffffffa5a50668 R12: 1ffff9200016ce2c
[   37.138526][  T427] R13: 00000000000007d0 R14: ffffc90000b67880 R15: ffff888015704e60
[   37.138977][  T427] FS:  00007feb168ce800(0000) GS:ffff88808f537000(0000) knlGS:0000000000000000
[   37.139519][  T427] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   37.139896][  T427] CR2: 00000000004e5ab8 CR3: 00000000103f9002 CR4: 0000000000772ef0
[   37.140351][  T427] PKRU: 55555554
[   37.140575][  T427] Call Trace:
[   37.140795][  T427]  <TASK>
[ 37.140948][ T427] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 37.141272][ T427] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 37.141570][ T427] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 37.141876][ T427] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 37.142183][ T427] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 37.142483][ T427] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 37.142785][ T427] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 37.143115][ T427] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 37.143502][ T427] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 37.143799][ T427] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 37.144103][ T427] ? __kernel_text_address (kernel/extable.c:79) 
[ 37.144405][ T427] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 37.144708][ T427] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 37.145018][ T427] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 37.145395][ T427] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 37.145693][ T427] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 37.145987][ T427] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 37.146292][ T427] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 37.146598][ T427] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 37.146893][ T427] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 37.147208][ T427] ? __create_object (mm/kmemleak.c:771) 
[ 37.147506][ T427] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 37.147810][ T427] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 37.148115][ T427] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 37.148484][ T427] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 37.148786][ T427] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 37.149130][ T427] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 37.149430][ T427] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 37.149731][ T427] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 37.150040][ T427] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 37.150344][ T427] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 37.150643][ T427] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 37.150940][ T427] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 37.151247][ T427] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 37.151549][ T427] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 37.151870][ T427] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 37.152175][ T427] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 37.152478][ T427] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 37.152784][ T427] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 37.153079][ T427] ? 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) 
[ 37.153372][ T427] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 37.153664][ T427] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 37.154010][ T427] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 37.154306][ T427] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 37.154605][ T427] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 37.154895][ T427] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 37.155201][ T427] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 37.155495][ T427] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 37.155784][ T427] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 37.156164][ T427] ___sys_sendmsg (net/socket.c:2670) 
[ 37.156452][ T427] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 37.156774][ T427] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 37.157144][ T427] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 37.157435][ T427] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 37.157732][ T427] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 37.158040][ T427] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 37.158330][ T427] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 37.158620][ T427] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 37.158917][ T427] __sys_sendmsg (net/socket.c:2700) 
[ 37.159221][ T427] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 37.159580][ T427] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 37.159884][ T427] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 37.160182][ T427] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 37.160472][ T427] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   37.160832][  T427] RIP: 0033:0x7feb16a9b1e7
[ 37.161137][ T427] 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)
[   37.162199][  T427] RSP: 002b:00007ffd13d54648 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   37.162638][  T427] RAX: ffffffffffffffda RBX: 00007ffd13d54d70 RCX: 00007feb16a9b1e7
[   37.163084][  T427] RDX: 0000000000000000 RSI: 00007ffd13d546b0 RDI: 0000000000000005
[   37.163524][  T427] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   37.163956][  T427] R10: 00007feb16998ee8 R11: 0000000000000246 R12: 0000000000000004
[   37.164393][  T427] R13: 00000000686e22ce R14: 0000000000499600 R15: 0000000000000000
| [   37.285829][  T428] ------------[ cut here ]------------
| [ 37.286182][ T428] WARNING: CPU: 0 PID: 428 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) 
| [   37.286758][  T428] Modules linked in: ip_gre gre 8021q dummy vrf veth
| [   37.287750][  T428] Tainted: [W]=WARN
[   37.287969][  T428] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 37.288343][ T428] 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) 
[ 37.288641][ T428] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   37.289686][  T428] RSP: 0018:ffffc90000717140 EFLAGS: 00010246
[   37.290062][  T428] RAX: 0000000000000000 RBX: ffff8880119e9000 RCX: 0000000000000001
[   37.290500][  T428] RDX: 0000000000000000 RSI: ffffffffa4c9b941 RDI: ffffffffa44555e0
[   37.290931][  T428] RBP: ffffc90000717230 R08: ffff88801297e800 R09: 0000000000000000
[   37.291376][  T428] R10: ffffc900007175c8 R11: ffffffffa5a50668 R12: 1ffff920000e2e2c
[   37.291824][  T428] R13: 00000000000007d0 R14: ffffc90000717880 R15: ffff8880156803e0
[   37.292278][  T428] FS:  00007f2037489800(0000) GS:ffff88808f4b7000(0000) knlGS:0000000000000000
[   37.292783][  T428] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   37.293303][  T428] CR2: 00000000004e59c0 CR3: 0000000015411006 CR4: 0000000000772ef0
[   37.293747][  T428] PKRU: 55555554
[   37.294161][  T428] Call Trace:
[   37.294384][  T428]  <TASK>
[ 37.294532][ T428] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 37.294830][ T428] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 37.295225][ T428] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 37.295519][ T428] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 37.295809][ T428] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 37.296130][ T428] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 37.296425][ T428] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 37.296720][ T428] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 37.297094][ T428] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 37.297384][ T428] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 37.297672][ T428] ? __kernel_text_address (kernel/extable.c:79) 
[ 37.297968][ T428] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 37.298269][ T428] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 37.298558][ T428] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 37.298915][ T428] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 37.299217][ T428] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 37.299505][ T428] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 37.299795][ T428] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 37.300101][ T428] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 37.300398][ T428] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 37.300683][ T428] ? __create_object (mm/kmemleak.c:771) 
[ 37.300974][ T428] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 37.301274][ T428] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 37.301562][ T428] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 37.301935][ T428] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 37.302241][ T428] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 37.302542][ T428] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 37.302833][ T428] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 37.303138][ T428] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 37.303429][ T428] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 37.303716][ T428] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 37.304028][ T428] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 37.304340][ T428] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 37.304631][ T428] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 37.304931][ T428] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 37.305235][ T428] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 37.305528][ T428] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 37.305821][ T428] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 37.306131][ T428] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 37.306421][ T428] ? 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) 
[ 37.306713][ T428] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 37.307023][ T428] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 37.307315][ T428] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 37.307609][ T428] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 37.307900][ T428] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 37.308226][ T428] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 37.308526][ T428] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 37.308818][ T428] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 37.309119][ T428] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 37.309491][ T428] ___sys_sendmsg (net/socket.c:2670) 
[ 37.309776][ T428] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 37.310073][ T428] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 37.310435][ T428] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 37.310729][ T428] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 37.311027][ T428] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 37.311330][ T428] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 37.311627][ T428] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 37.311928][ T428] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 37.312244][ T428] __sys_sendmsg (net/socket.c:2700) 
[ 37.312531][ T428] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 37.312888][ T428] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 37.313198][ T428] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 37.313493][ T428] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 37.313787][ T428] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   37.314155][  T428] RIP: 0033:0x7f20376561e7
[ 37.314455][ T428] 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)
[   37.315504][  T428] RSP: 002b:00007ffcfa3ddd48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   37.315948][  T428] RAX: ffffffffffffffda RBX: 00007ffcfa3de470 RCX: 00007f20376561e7
[   37.316403][  T428] RDX: 0000000000000000 RSI: 00007ffcfa3dddb0 RDI: 0000000000000005
[   37.316835][  T428] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   37.317277][  T428] R10: 00007f2037553ee8 R11: 0000000000000246 R12: 0000000000000004


Finger prints:
netif_set_mtu_ext:rtnl_newlink:rtnetlink_rcv_msg:netlink_rcv_skb:netlink_unicast
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:ip_tunnel_newlink:ipgre_newlink