======================================
| [  389.422747][ T3475] ip_gre: GRE over IPv4 tunneling driver
| [  389.470425][ T3474] ------------[ cut here ]------------
| [ 389.470791][ T3474] WARNING: CPU: 1 PID: 3474 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) 
| [  389.471408][ T3474] Modules linked in: ip_gre gre cls_u32 sch_htb
[  389.473501][ T3474] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 389.474144][ T3474] 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) 
[ 389.474463][ T3474] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  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
[  389.475735][ T3474] RSP: 0018:ffffc900005278e0 EFLAGS: 00010246
[  389.476438][ T3474] RAX: 0000000000000000 RBX: ffff88800c69c000 RCX: 0000000000000001
[  389.476897][ T3474] RDX: 0000000000000000 RSI: ffffffff98d10751 RDI: ffffffff98458280
[  389.477561][ T3474] RBP: ffffc900005279c8 R08: ffff88800c69c218 R09: 0000000000000000
[  389.478023][ T3474] R10: ffffc900005279f8 R11: ffffffff9978d1e0 R12: 1ffff920000a4f20
[  389.478706][ T3474] R13: 00000000000005c4 R14: ffffc900005279f8 R15: ffffffff9c2feb80
[  389.479288][ T3474] FS:  00007f1878538800(0000) GS:ffff8880d1c19000(0000) knlGS:0000000000000000
[  389.479839][ T3474] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  389.480237][ T3474] CR2: 00007fd49e4fd000 CR3: 00000000117d0003 CR4: 0000000000772ef0
[  389.480705][ T3474] PKRU: 55555554
[  389.480939][ T3474] Call Trace:
[  389.481176][ T3474]  <TASK>
[ 389.481333][ T3474] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 389.481724][ T3474] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 389.482026][ T3474] ? rtmsg_ifinfo (net/core/rtnetlink.c:4445 net/core/rtnetlink.c:4443) 
[ 389.482348][ T3474] netif_set_mtu (net/core/dev.c:9652) 
[ 389.482668][ T3474] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 389.483188][ T3474] ? cap_capable (security/commoncap.c:132) 
[ 389.483510][ T3474] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 389.483741][ T3474] ip_tunnel_ctl (net/ipv4/ip_tunnel.c:344 net/ipv4/ip_tunnel.c:944) 
[ 389.484047][ T3474] ipgre_tunnel_ctl (net/ipv4/ip_gre.c:839) ip_gre 
[ 389.484371][ T3474] ip_tunnel_siocdevprivate (net/ipv4/ip_tunnel.c:1061) 
[ 389.484685][ T3474] ? __pfx_ip_tunnel_siocdevprivate (net/ipv4/ip_tunnel.c:1055) 
[ 389.485078][ T3474] ? __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) 
[ 389.485386][ T3474] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 389.485712][ T3474] dev_ifsioc (net/core/dev_ioctl.c:521 net/core/dev_ioctl.c:633) 
[ 389.486018][ T3474] ? __pfx_dev_ifsioc (net/core/dev_ioctl.c:553) 
[ 389.486343][ T3474] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 389.486663][ T3474] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 389.486963][ T3474] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 389.487279][ T3474] ? cap_capable (security/commoncap.c:132) 
[ 389.487592][ T3474] ? trace_cap_capable (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/cpumask.h:638 ./include/linux/cpumask.h:1197 ./include/trace/events/capability.h:26) 
[ 389.487897][ T3474] dev_ioctl (net/core/dev_ioctl.c:851) 
[ 389.488138][ T3474] sock_ioctl (net/socket.c:1284) 
[ 389.488371][ T3474] ? __pfx_sock_ioctl (net/socket.c:1266) 
[ 389.488689][ T3474] ? fd_install (./arch/x86/include/asm/preempt.h:104 ./include/linux/rcupdate.h:955 fs/file.c:661) 
[ 389.489000][ T3474] ? __pfx___sys_socket (net/socket.c:1727) 
[ 389.489310][ T3474] __x64_sys_ioctl (fs/ioctl.c:52 fs/ioctl.c:907 fs/ioctl.c:893 fs/ioctl.c:893) 
[ 389.489627][ T3474] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 389.489934][ T3474] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  389.490317][ T3474] RIP: 0033:0x7f18786f8e4b
[ 389.490650][ T3474] Code: Unable to access opcode bytes at 0x7f18786f8e21.

Code starting with the faulting instruction
===========================================
[  389.491042][ T3474] RSP: 002b:00007ffda5be0778 EFLAGS: 00000206 ORIG_RAX: 0000000000000010
[  389.491525][ T3474] RAX: ffffffffffffffda RBX: 00000000000089f1 RCX: 00007f18786f8e4b
[  389.491985][ T3474] RDX: 00007ffda5be0780 RSI: 00000000000089f1 RDI: 0000000000000006
[  389.492459][ T3474] RBP: 0000000000000006 R08: 0000000000000001 R09: 0000000000000000
[  389.492912][ T3474] R10: 00007f1878606d70 R11: 0000000000000206 R12: 00007ffda5be09d0
[  389.493375][ T3474] R13: 00007ffda5be0780 R14: 00007ffda5be29b7 R15: 0000000000000000
| [  392.182173][ T3516] ------------[ cut here ]------------
| [ 392.182804][ T3516] WARNING: CPU: 2 PID: 3516 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) 
| [  392.183476][ T3516] Modules linked in: ip_gre gre cls_u32 sch_htb
| [  392.184602][ T3516] Tainted: [W]=WARN
[  392.184861][ T3516] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 392.185280][ T3516] 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) 
[ 392.185611][ T3516] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  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
[  392.187283][ T3516] RSP: 0018:ffffc90000827000 EFLAGS: 00010246
[  392.187692][ T3516] RAX: 0000000000000000 RBX: ffff888002c34000 RCX: 0000000000000001
[  392.188174][ T3516] RDX: 0000000000000000 RSI: ffffffff98d10751 RDI: ffffffff98458280
[  392.188652][ T3516] RBP: ffffc900008270e8 R08: ffff888002c34218 R09: 0000000000000000
[  392.189142][ T3516] R10: ffffc90000827118 R11: ffffffff9978d1e0 R12: 1ffff92000104e04
[  392.189631][ T3516] R13: 00000000000005ae R14: ffffc90000827118 R15: ffff888002c34218
[  392.190107][ T3516] FS:  00007faead799800(0000) GS:ffff8880d1c99000(0000) knlGS:0000000000000000
[  392.190666][ T3516] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  392.191075][ T3516] CR2: 00000000004200f0 CR3: 0000000004fe8003 CR4: 0000000000772ef0
[  392.191568][ T3516] PKRU: 55555554
[  392.191808][ T3516] Call Trace:
[  392.192047][ T3516]  <TASK>
[ 392.192231][ T3516] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 392.192634][ T3516] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 392.192957][ T3516] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 392.193309][ T3516] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 392.193633][ T3516] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 392.193961][ T3516] netif_set_mtu (net/core/dev.c:9652) 
[ 392.194306][ T3516] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 392.194665][ T3516] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 392.195006][ T3516] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 392.195290][ T3516] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 392.195647][ T3516] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 392.195970][ T3516] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 392.196406][ T3516] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 392.196815][ T3516] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 392.197162][ T3516] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 392.197486][ T3516] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 392.197818][ T3516] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 392.198146][ T3516] ? __dev_get_by_name (net/core/dev.c:865) 
[ 392.198466][ T3516] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 392.198777][ T3516] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 392.199112][ T3516] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 392.199428][ T3516] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 392.199754][ T3516] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 392.200091][ T3516] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 392.200525][ T3516] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 392.200860][ T3516] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 392.201190][ T3516] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 392.201512][ T3516] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 392.201830][ T3516] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 392.202168][ T3516] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 392.202493][ T3516] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 392.202827][ T3516] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 392.203192][ T3516] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 392.203513][ T3516] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 392.203845][ T3516] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 392.204170][ T3516] ? 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) 
[ 392.204491][ T3516] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 392.204815][ T3516] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 392.205148][ T3516] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 392.205468][ T3516] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 392.205791][ T3516] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 392.206119][ T3516] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 392.206465][ T3516] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 392.206783][ T3516] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 392.207113][ T3516] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 392.207588][ T3516] ___sys_sendmsg (net/socket.c:2670) 
[ 392.207933][ T3516] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 392.208259][ T3516] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 392.208584][ T3516] ? mt_find (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 lib/maple_tree.c:6937) 
[ 392.208846][ T3516] ? __handle_mm_fault (mm/memory.c:6212) 
[ 392.209174][ T3516] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 392.209485][ T3516] ? mt_find (lib/maple_tree.c:6938) 
[ 392.209744][ T3516] __sys_sendmsg (net/socket.c:2700) 
[ 392.210139][ T3516] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 392.210455][ T3516] ? do_user_addr_fault (./include/linux/mmap_lock.h:440 arch/x86/mm/fault.c:1415) 
[ 392.210790][ T3516] ? do_user_addr_fault (./include/linux/mmap_lock.h:440 arch/x86/mm/fault.c:1415) 
[ 392.211142][ T3516] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 392.211469][ T3516] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 392.211784][ T3516] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  392.212183][ T3516] RIP: 0033:0x7faead9661e7
[ 392.212596][ T3516] 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)
[  392.213708][ T3516] RSP: 002b:00007fff74a50b58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  392.214191][ T3516] RAX: ffffffffffffffda RBX: 00007fff74a51290 RCX: 00007faead9661e7
[  392.214668][ T3516] RDX: 0000000000000000 RSI: 00007fff74a50bc0 RDI: 0000000000000005
[  392.215151][ T3516] RBP: 0000000000000007 R08: 00000000000000b4 R09: 0000000000000000
[  392.215638][ T3516] R10: 00007faead85e6f8 R11: 0000000000000246 R12: 00007fff74a512b0
[  392.216139][ T3516] R13: 00000000686e6f74 R14: 0000000000499600 R15: 00007fff74a50cb0
| [  392.832591][ T3524] ------------[ cut here ]------------
| [ 392.833042][ T3524] WARNING: CPU: 1 PID: 3524 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) 
| [  392.833655][ T3524] Modules linked in: ip_gre gre cls_u32 sch_htb
| [  392.834807][ T3524] Tainted: [W]=WARN
[  392.835160][ T3524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 392.835631][ T3524] 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) 
[ 392.835975][ T3524] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  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
[  392.837193][ T3524] RSP: 0018:ffffc900005d7000 EFLAGS: 00010246
[  392.837630][ T3524] RAX: 0000000000000000 RBX: ffff888012219000 RCX: 0000000000000001
[  392.838133][ T3524] RDX: 0000000000000000 RSI: ffffffff98d10751 RDI: ffffffff98458280
[  392.838637][ T3524] RBP: ffffc900005d70e8 R08: ffff888012219218 R09: 0000000000000000
[  392.839298][ T3524] R10: ffffc900005d7118 R11: c002a6a99dae2aff R12: 1ffff920000bae04
[  392.839865][ T3524] R13: 00000000000005b6 R14: ffffc900005d7118 R15: ffff888012219218
[  392.840350][ T3524] FS:  00007f7bef0dd800(0000) GS:ffff8880d1c19000(0000) knlGS:0000000000000000
[  392.840937][ T3524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  392.841426][ T3524] CR2: 0000000000436890 CR3: 0000000010ce8003 CR4: 0000000000772ef0
[  392.842041][ T3524] PKRU: 55555554
[  392.842420][ T3524] Call Trace:
[  392.842822][ T3524]  <TASK>
[ 392.843130][ T3524] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 392.843675][ T3524] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 392.844236][ T3524] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 392.844769][ T3524] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 392.845331][ T3524] netif_set_mtu (net/core/dev.c:9652) 
[ 392.845863][ T3524] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 392.846448][ T3524] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 392.846986][ T3524] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 392.847437][ T3524] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 392.847979][ T3524] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 392.848345][ T3524] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 392.848716][ T3524] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 392.849160][ T3524] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 392.849625][ T3524] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 392.850039][ T3524] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 392.850470][ T3524] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 392.850999][ T3524] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 392.851510][ T3524] ? __dev_get_by_name (net/core/dev.c:865) 
[ 392.851939][ T3524] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 392.852259][ T3524] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 392.852569][ T3524] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 392.852964][ T3524] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 392.853289][ T3524] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 392.853614][ T3524] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 392.853933][ T3524] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 392.854351][ T3524] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 392.854657][ T3524] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 392.854998][ T3524] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 392.855327][ T3524] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 392.855636][ T3524] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 392.856039][ T3524] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 392.856377][ T3524] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 392.856696][ T3524] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 392.857002][ T3524] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 392.857325][ T3524] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 392.857628][ T3524] ? 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) 
[ 392.857948][ T3524] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 392.858270][ T3524] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 392.858574][ T3524] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 392.858908][ T3524] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 392.859237][ T3524] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 392.859543][ T3524] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 392.859865][ T3524] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 392.860179][ T3524] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 392.860480][ T3524] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 392.860889][ T3524] ___sys_sendmsg (net/socket.c:2670) 
[ 392.861207][ T3524] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 392.861509][ T3524] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 392.861825][ T3524] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 392.862136][ T3524] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 392.862507][ T3524] ? __handle_mm_fault (mm/memory.c:6212) 
[ 392.862856][ T3524] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 392.863318][ T3524] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 392.863792][ T3524] __sys_sendmsg (net/socket.c:2700) 
[ 392.864226][ T3524] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 392.864552][ T3524] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 392.864923][ T3524] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 392.865241][ T3524] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 392.865644][ T3524] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 392.865970][ T3524] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  392.866368][ T3524] RIP: 0033:0x7f7bef2aa1e7
[ 392.866775][ T3524] 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)
[  392.868116][ T3524] RSP: 002b:00007ffeac69c938 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  392.868702][ T3524] RAX: ffffffffffffffda RBX: 00007ffeac69d070 RCX: 00007f7bef2aa1e7
[  392.869193][ T3524] RDX: 0000000000000000 RSI: 00007ffeac69c9a0 RDI: 0000000000000005
[  392.869712][ T3524] RBP: 0000000000000001 R08: 0000000000000048 R09: 0000000000000000
[  392.870177][ T3524] R10: 00007f7bef1a26f8 R11: 0000000000000246 R12: 00007ffeac69d090
[  392.870763][ T3524] R13: 00000000686e6f75 R14: 0000000000499600 R15: 00007ffeac69ca90
| [  397.249304][ T3570] ------------[ cut here ]------------
| [ 397.249697][ T3570] WARNING: CPU: 2 PID: 3570 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) 
| [  397.250356][ T3570] Modules linked in: ip6_gre ip_gre gre cls_u32 sch_htb
| [  397.251436][ T3570] Tainted: [W]=WARN
[  397.251682][ T3570] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 397.252086][ T3570] 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) 
[ 397.252414][ T3570] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  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
[  397.253527][ T3570] RSP: 0018:ffffc90000747000 EFLAGS: 00010246
[  397.253944][ T3570] RAX: 0000000000000000 RBX: ffff8880097dc000 RCX: 0000000000000001
[  397.254435][ T3570] RDX: 0000000000000000 RSI: ffffffff98d10751 RDI: ffffffff98458280
[  397.254906][ T3570] RBP: ffffc900007470e8 R08: ffff8880097dc218 R09: 0000000000000000
[  397.255388][ T3570] R10: ffffc90000747118 R11: ffffffff9978d1e0 R12: 1ffff920000e8e04
[  397.255885][ T3570] R13: 00000000000005aa R14: ffffc90000747118 R15: ffff8880097dc218
[  397.256411][ T3570] FS:  00007f2f2565b800(0000) GS:ffff8880d1c99000(0000) knlGS:0000000000000000
[  397.256983][ T3570] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  397.257414][ T3570] CR2: 00000000004200f0 CR3: 0000000012016006 CR4: 0000000000772ef0
[  397.257911][ T3570] PKRU: 55555554
[  397.258204][ T3570] Call Trace:
[  397.258468][ T3570]  <TASK>
[ 397.258646][ T3570] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 397.259068][ T3570] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 397.259405][ T3570] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 397.259749][ T3570] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 397.260095][ T3570] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 397.260438][ T3570] netif_set_mtu (net/core/dev.c:9652) 
[ 397.260773][ T3570] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 397.261133][ T3570] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 397.261475][ T3570] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 397.261733][ T3570] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 397.262091][ T3570] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 397.262434][ T3570] ? ipgre_netlink_parms (net/ipv4/ip_gre.c:1197) ip_gre 
[ 397.262853][ T3570] erspan_newlink (net/ipv4/ip_gre.c:1436 (discriminator 4)) ip_gre 
[ 397.263199][ T3570] ? __pfx_erspan_newlink (net/ipv4/ip_gre.c:1422) ip_gre 
[ 397.263608][ T3570] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 397.263957][ T3570] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 397.264304][ T3570] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 397.264641][ T3570] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 397.264971][ T3570] ? __dev_get_by_name (net/core/dev.c:865) 
[ 397.265313][ T3570] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 397.265654][ T3570] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 397.265991][ T3570] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 397.266357][ T3570] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 397.266701][ T3570] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 397.267045][ T3570] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 397.267397][ T3570] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 397.267742][ T3570] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 397.268085][ T3570] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 397.268417][ T3570] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 397.268746][ T3570] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 397.269100][ T3570] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 397.269444][ T3570] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 397.269783][ T3570] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 397.270126][ T3570] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 397.270461][ T3570] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 397.270799][ T3570] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 397.271142][ T3570] ? 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) 
[ 397.271480][ T3570] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 397.271815][ T3570] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 397.272155][ T3570] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 397.272498][ T3570] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 397.272832][ T3570] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 397.273177][ T3570] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 397.273521][ T3570] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 397.273869][ T3570] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 397.274219][ T3570] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 397.274648][ T3570] ___sys_sendmsg (net/socket.c:2670) 
[ 397.274986][ T3570] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 397.275330][ T3570] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 397.275666][ T3570] ? mt_find (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 lib/maple_tree.c:6937) 
[ 397.275927][ T3570] ? __handle_mm_fault (mm/memory.c:6212) 
[ 397.276285][ T3570] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 397.276620][ T3570] ? mt_find (lib/maple_tree.c:6938) 
[ 397.276893][ T3570] __sys_sendmsg (net/socket.c:2700) 
[ 397.277239][ T3570] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 397.277569][ T3570] ? do_user_addr_fault (./include/linux/mmap_lock.h:440 arch/x86/mm/fault.c:1415) 
[ 397.277908][ T3570] ? do_user_addr_fault (./include/linux/mmap_lock.h:440 arch/x86/mm/fault.c:1415) 
[ 397.278266][ T3570] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 397.278617][ T3570] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 397.278948][ T3570] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  397.279365][ T3570] RIP: 0033:0x7f2f258281e7
[ 397.279703][ T3570] 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)
[  397.280863][ T3570] RSP: 002b:00007ffd8f6547a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  397.281367][ T3570] RAX: ffffffffffffffda RBX: 00007ffd8f654ee0 RCX: 00007f2f258281e7
[  397.281858][ T3570] RDX: 0000000000000000 RSI: 00007ffd8f654810 RDI: 0000000000000005
[  397.282374][ T3570] RBP: 000000000000000b R08: 00000000000000c4 R09: 0000000000000000
[  397.282880][ T3570] R10: 00007f2f257206f8 R11: 0000000000000246 R12: 00007ffd8f654f00
[  397.283386][ T3570] R13: 00000000686e6f79 R14: 0000000000499600 R15: 00007ffd8f654900
| [  397.895815][ T3578] ------------[ cut here ]------------
| [ 397.896271][ T3578] WARNING: CPU: 1 PID: 3578 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) 
| [  397.896882][ T3578] Modules linked in: ip6_gre ip_gre gre cls_u32 sch_htb
| [  397.897917][ T3578] Tainted: [W]=WARN
[  397.898155][ T3578] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 397.898542][ T3578] 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) 
[ 397.898852][ T3578] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  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
[  397.899941][ T3578] RSP: 0018:ffffc90000547000 EFLAGS: 00010246
[  397.900333][ T3578] RAX: 0000000000000000 RBX: ffff88800f474000 RCX: 0000000000000001
[  397.900791][ T3578] RDX: 0000000000000000 RSI: ffffffff98d10751 RDI: ffffffff98458280
[  397.901263][ T3578] RBP: ffffc900005470e8 R08: ffff88800f474218 R09: 0000000000000000
[  397.901720][ T3578] R10: ffffc90000547118 R11: ffffffff9978d1e0 R12: 1ffff920000a8e04
[  397.902183][ T3578] R13: 00000000000005a6 R14: ffffc90000547118 R15: ffff88800f474218
[  397.902640][ T3578] FS:  00007fe6fce38800(0000) GS:ffff8880d1c19000(0000) knlGS:0000000000000000
[  397.903177][ T3578] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  397.903566][ T3578] CR2: 00000000004200f0 CR3: 0000000004e6a006 CR4: 0000000000772ef0
[  397.904019][ T3578] PKRU: 55555554
[  397.904254][ T3578] Call Trace:
[  397.904481][ T3578]  <TASK>
[ 397.904641][ T3578] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 397.905017][ T3578] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 397.905344][ T3578] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 397.905652][ T3578] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 397.905961][ T3578] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 397.906290][ T3578] netif_set_mtu (net/core/dev.c:9652) 
[ 397.906595][ T3578] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 397.906914][ T3578] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 397.907228][ T3578] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 397.907459][ T3578] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 397.907763][ T3578] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 397.908078][ T3578] ? ipgre_netlink_parms (net/ipv4/ip_gre.c:1197) ip_gre 
[ 397.908464][ T3578] erspan_newlink (net/ipv4/ip_gre.c:1436 (discriminator 4)) ip_gre 
[ 397.908770][ T3578] ? __pfx_erspan_newlink (net/ipv4/ip_gre.c:1422) ip_gre 
[ 397.909174][ T3578] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 397.909488][ T3578] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 397.909799][ T3578] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 397.910114][ T3578] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 397.910416][ T3578] ? __dev_get_by_name (net/core/dev.c:865) 
[ 397.910719][ T3578] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 397.911018][ T3578] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 397.911363][ T3578] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 397.911668][ T3578] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 397.911982][ T3578] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 397.912313][ T3578] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 397.912622][ T3578] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 397.912937][ T3578] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 397.913271][ T3578] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 397.913591][ T3578] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 397.913903][ T3578] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 397.914218][ T3578] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 397.914537][ T3578] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 397.914854][ T3578] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 397.915171][ T3578] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 397.915518][ T3578] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 397.915842][ T3578] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 397.916185][ T3578] ? 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) 
[ 397.916524][ T3578] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 397.916834][ T3578] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 397.917161][ T3578] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 397.917478][ T3578] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 397.917787][ T3578] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 397.918132][ T3578] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 397.918482][ T3578] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 397.918803][ T3578] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 397.919151][ T3578] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 397.919597][ T3578] ___sys_sendmsg (net/socket.c:2670) 
[ 397.919935][ T3578] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 397.920295][ T3578] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 397.920637][ T3578] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 397.920966][ T3578] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 397.921318][ T3578] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 397.921651][ T3578] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 397.921988][ T3578] __sys_sendmsg (net/socket.c:2700) 
[ 397.922337][ T3578] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 397.922673][ T3578] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 397.923016][ T3578] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 397.923361][ T3578] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  397.923779][ T3578] RIP: 0033:0x7fe6fd0051e7
[ 397.924125][ T3578] 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)
[  397.925293][ T3578] RSP: 002b:00007ffe4bb889d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  397.925785][ T3578] RAX: ffffffffffffffda RBX: 00007ffe4bb89110 RCX: 00007fe6fd0051e7
[  397.926291][ T3578] RDX: 0000000000000000 RSI: 00007ffe4bb88a40 RDI: 0000000000000005
[  397.926770][ T3578] RBP: 000000000000000d R08: 00000000000000cc R09: 0000000000000000
[  397.927262][ T3578] R10: 00007fe6fcefd6f8 R11: 0000000000000246 R12: 00007ffe4bb89130
[  397.927741][ T3578] R13: 00000000686e6f7a R14: 0000000000499600 R15: 00007ffe4bb88b30
| [  398.512764][ T3586] ------------[ cut here ]------------
| [ 398.514325][ T3586] WARNING: CPU: 3 PID: 3586 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) 
| [  398.514948][ T3586] Modules linked in: ip6_gre ip_gre gre cls_u32 sch_htb
| [  398.515998][ T3586] Tainted: [W]=WARN
[  398.516258][ T3586] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 398.516651][ T3586] 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) 
[ 398.516966][ T3586] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  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
[  398.518065][ T3586] RSP: 0018:ffffc90000667000 EFLAGS: 00010246
[  398.518469][ T3586] RAX: 0000000000000000 RBX: ffff888011619000 RCX: 0000000000000001
[  398.518928][ T3586] RDX: 0000000000000000 RSI: ffffffff98d10751 RDI: ffffffff98458280
[  398.519425][ T3586] RBP: ffffc900006670e8 R08: ffff888011619218 R09: 0000000000000000
[  398.519895][ T3586] R10: ffffc90000667118 R11: 84cc454453c74214 R12: 1ffff920000cce04
[  398.520364][ T3586] R13: 00000000000005aa R14: ffffc90000667118 R15: ffff888011619218
[  398.520824][ T3586] FS:  00007f9b97ed0800(0000) GS:ffff8880d1d19000(0000) knlGS:0000000000000000
[  398.521362][ T3586] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  398.521761][ T3586] CR2: 0000000000436890 CR3: 00000000113bb002 CR4: 0000000000772ef0
[  398.522238][ T3586] PKRU: 55555554
[  398.522467][ T3586] Call Trace:
[  398.522702][ T3586]  <TASK>
[ 398.522863][ T3586] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 398.523186][ T3586] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 398.523504][ T3586] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 398.523815][ T3586] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 398.524136][ T3586] netif_set_mtu (net/core/dev.c:9652) 
[ 398.524438][ T3586] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 398.524759][ T3586] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 398.525089][ T3586] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 398.525324][ T3586] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 398.525642][ T3586] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 398.525954][ T3586] ? ipgre_netlink_parms (net/ipv4/ip_gre.c:1181) ip_gre 
[ 398.526372][ T3586] erspan_newlink (net/ipv4/ip_gre.c:1436 (discriminator 4)) ip_gre 
[ 398.526685][ T3586] ? __pfx_erspan_newlink (net/ipv4/ip_gre.c:1422) ip_gre 
[ 398.527099][ T3586] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 398.527414][ T3586] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 398.527738][ T3586] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 398.528065][ T3586] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 398.528372][ T3586] ? __dev_get_by_name (net/core/dev.c:865) 
[ 398.528674][ T3586] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 398.528980][ T3586] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 398.529306][ T3586] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 398.529608][ T3586] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 398.529918][ T3586] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 398.530241][ T3586] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 398.530551][ T3586] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 398.530864][ T3586] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 398.531175][ T3586] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 398.531490][ T3586] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 398.531802][ T3586] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 398.532117][ T3586] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 398.532426][ T3586] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 398.532734][ T3586] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 398.533077][ T3586] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 398.533390][ T3586] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 398.533706][ T3586] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 398.534033][ T3586] ? 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) 
[ 398.534360][ T3586] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 398.534673][ T3586] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 398.534974][ T3586] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 398.535305][ T3586] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 398.535616][ T3586] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 398.535920][ T3586] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 398.536257][ T3586] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 398.536587][ T3586] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 398.536893][ T3586] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 398.537319][ T3586] ___sys_sendmsg (net/socket.c:2670) 
[ 398.537630][ T3586] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 398.537942][ T3586] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 398.538268][ T3586] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 398.538578][ T3586] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 398.538903][ T3586] ? __handle_mm_fault (mm/memory.c:6212) 
[ 398.539220][ T3586] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 398.539524][ T3586] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 398.539859][ T3586] __sys_sendmsg (net/socket.c:2700) 
[ 398.540175][ T3586] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 398.540485][ T3586] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 398.540797][ T3586] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 398.541126][ T3586] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 398.541438][ T3586] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 398.541743][ T3586] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  398.542143][ T3586] RIP: 0033:0x7f9b9809d1e7
[ 398.542458][ T3586] 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)
[  398.543592][ T3586] RSP: 002b:00007ffe566a81e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  398.544081][ T3586] RAX: ffffffffffffffda RBX: 00007ffe566a8920 RCX: 00007f9b9809d1e7
[  398.544538][ T3586] RDX: 0000000000000000 RSI: 00007ffe566a8250 RDI: 0000000000000005
[  398.545015][ T3586] RBP: 0000000000000001 R08: 0000000000000048 R09: 0000000000000000
[  398.545500][ T3586] R10: 00007f9b97f956f8 R11: 0000000000000246 R12: 00007ffe566a8940
[  398.545954][ T3586] R13: 00000000686e6f7b R14: 0000000000499600 R15: 00007ffe566a8340
| [  401.976617][ T3626] ------------[ cut here ]------------
| [ 401.976922][ T3626] WARNING: CPU: 0 PID: 3626 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) 
| [  401.977517][ T3626] Modules linked in: ip6_gre ip_gre gre cls_u32 sch_htb
| [  401.978508][ T3626] Tainted: [W]=WARN
[  401.978736][ T3626] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 401.979111][ T3626] 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) 
[ 401.979414][ T3626] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  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
[  401.980485][ T3626] RSP: 0018:ffffc900006d6ef0 EFLAGS: 00010246
[  401.980857][ T3626] RAX: 0000000000000000 RBX: ffff88800c44a000 RCX: 0000000000000001
[  401.981303][ T3626] RDX: 0000000000000000 RSI: ffffffff98d10751 RDI: ffffffff98458280
[  401.981753][ T3626] RBP: ffffc900006d6fd8 R08: 0000000000000000 R09: 0000000000000000
[  401.982208][ T3626] R10: ffffc900006d7008 R11: ffffffff9978d1e0 R12: 1ffff920000dade2
[  401.982646][ T3626] R13: 00000000000005dc R14: ffffc900006d7008 R15: ffff88800c44af48
[  401.983096][ T3626] FS:  00007f40efa6c800(0000) GS:ffff8880d1b99000(0000) knlGS:0000000000000000
[  401.983611][ T3626] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  401.983980][ T3626] CR2: 00000000004e5db0 CR3: 000000001151a006 CR4: 0000000000772ef0
[  401.984425][ T3626] PKRU: 55555554
[  401.984645][ T3626] Call Trace:
[  401.984867][ T3626]  <TASK>
[ 401.985021][ T3626] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 401.985323][ T3626] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 401.985638][ T3626] netif_set_mtu (net/core/dev.c:9652) 
[ 401.985931][ T3626] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 401.986260][ T3626] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 401.986495][ T3626] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 401.986796][ T3626] br_add_if (net/bridge/br_if.c:697) 
[ 401.987029][ T3626] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 401.987334][ T3626] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 401.987632][ T3626] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 401.988005][ T3626] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 401.988310][ T3626] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 401.988608][ T3626] ? __kernel_text_address (kernel/extable.c:79) 
[ 401.988910][ T3626] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 401.989362][ T3626] ? __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) 
[ 401.989658][ T3626] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 401.990024][ T3626] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 401.990510][ T3626] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 401.990810][ T3626] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 401.991318][ T3626] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 401.991615][ T3626] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 401.991907][ T3626] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 401.992441][ T3626] ? __create_object (mm/kmemleak.c:771) 
[ 401.992741][ T3626] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 401.993034][ T3626] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 401.993523][ T3626] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 401.993890][ T3626] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 401.994346][ T3626] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 401.994645][ T3626] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 401.994939][ T3626] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 401.995248][ T3626] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 401.995543][ T3626] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 401.995834][ T3626] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 401.996140][ T3626] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 401.996446][ T3626] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 401.996746][ T3626] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 401.997047][ T3626] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 401.997357][ T3626] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 401.997654][ T3626] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 401.997952][ T3626] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 401.998267][ T3626] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 401.998560][ T3626] ? 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) 
[ 401.998861][ T3626] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 401.999167][ T3626] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 401.999465][ T3626] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 401.999764][ T3626] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 402.000070][ T3626] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 402.000367][ T3626] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 402.000669][ T3626] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 402.000971][ T3626] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 402.001271][ T3626] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 402.001650][ T3626] ___sys_sendmsg (net/socket.c:2670) 
[ 402.001944][ T3626] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 402.002246][ T3626] ? __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) 
[ 402.002614][ T3626] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 402.002911][ T3626] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 402.003220][ T3626] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 402.003519][ T3626] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 402.003820][ T3626] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 402.004120][ T3626] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 402.004424][ T3626] __sys_sendmsg (net/socket.c:2700) 
[ 402.004714][ T3626] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 402.005083][ T3626] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 402.005397][ T3626] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 402.005690][ T3626] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 402.005988][ T3626] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  402.006372][ T3626] RIP: 0033:0x7f40efc391e7
[ 402.006675][ T3626] 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)
[  402.007737][ T3626] RSP: 002b:00007ffe57124b98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  402.008209][ T3626] RAX: ffffffffffffffda RBX: 00007ffe571252c0 RCX: 00007f40efc391e7
[  402.008651][ T3626] RDX: 0000000000000000 RSI: 00007ffe57124c00 RDI: 0000000000000005
[  402.009098][ T3626] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  402.009543][ T3626] R10: 000000001dafa910 R11: 0000000000000246 R12: 0000000000000004
[  402.009980][ T3626] R13: 00000000686e6f7e R14: 0000000000499600 R15: 0000000000000000
| [  542.422289][ T6043] ------------[ cut here ]------------
| [ 542.422621][ T6043] WARNING: CPU: 0 PID: 6043 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) 
| [  542.423628][ T6043] Modules linked in: psample xfrm_user macsec vxlan ip6_gre ip_gre gre cls_u32 sch_htb [last unloaded: netdevsim]
| [  542.425022][ T6043] Tainted: [W]=WARN
[  542.425276][ T6043] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 542.425670][ T6043] 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) 
[ 542.425998][ T6043] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  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
[  542.427129][ T6043] RSP: 0018:ffffc90000646ef0 EFLAGS: 00010246
[  542.427536][ T6043] RAX: 0000000000000000 RBX: ffff88800b042000 RCX: 0000000000000001
[  542.428014][ T6043] RDX: 0000000000000000 RSI: ffffffff98d10751 RDI: ffffffff98458280
[  542.428495][ T6043] RBP: ffffc90000646fd8 R08: 0000000000000000 R09: 0000000000000000
[  542.428958][ T6043] R10: ffffc90000647008 R11: ffffffff9978d1e0 R12: 1ffff920000c8de2
[  542.429445][ T6043] R13: 00000000000005dc R14: ffffc90000647008 R15: ffff88800b042f48
[  542.429916][ T6043] FS:  00007fd9e15e4800(0000) GS:ffff8880d1b99000(0000) knlGS:0000000000000000
[  542.430467][ T6043] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  542.430858][ T6043] CR2: 00000000004e6eb8 CR3: 0000000011617002 CR4: 0000000000772ef0
[  542.431332][ T6043] PKRU: 55555554
[  542.431582][ T6043] Call Trace:
[  542.431814][ T6043]  <TASK>
[ 542.431975][ T6043] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 542.432310][ T6043] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 542.432644][ T6043] netif_set_mtu (net/core/dev.c:9652) 
[ 542.432954][ T6043] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 542.433302][ T6043] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 542.433541][ T6043] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 542.433864][ T6043] br_add_if (net/bridge/br_if.c:697) 
[ 542.434119][ T6043] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 542.434425][ T6043] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 542.434745][ T6043] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 542.435071][ T6043] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 542.435468][ T6043] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 542.435778][ T6043] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 542.436093][ T6043] ? __kernel_text_address (kernel/extable.c:79) 
[ 542.436413][ T6043] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 542.436751][ T6043] ? __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) 
[ 542.437079][ T6043] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 542.437464][ T6043] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 542.437778][ T6043] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 542.438094][ T6043] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 542.438405][ T6043] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 542.438713][ T6043] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 542.439025][ T6043] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 542.439349][ T6043] ? __create_object (mm/kmemleak.c:771) 
[ 542.439659][ T6043] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 542.439969][ T6043] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 542.440286][ T6043] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 542.440671][ T6043] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 542.440984][ T6043] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 542.441307][ T6043] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 542.441621][ T6043] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 542.441937][ T6043] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 542.442261][ T6043] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 542.442568][ T6043] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 542.442880][ T6043] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 542.443197][ T6043] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 542.443510][ T6043] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 542.443823][ T6043] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 542.444156][ T6043] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 542.444483][ T6043] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 542.444806][ T6043] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 542.445136][ T6043] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 542.445448][ T6043] ? 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) 
[ 542.445759][ T6043] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 542.446080][ T6043] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 542.446405][ T6043] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 542.446734][ T6043] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 542.447049][ T6043] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 542.447385][ T6043] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 542.447700][ T6043] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 542.448025][ T6043] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 542.448355][ T6043] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 542.448759][ T6043] ___sys_sendmsg (net/socket.c:2670) 
[ 542.449089][ T6043] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 542.449400][ T6043] ? __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) 
[ 542.449800][ T6043] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 542.450125][ T6043] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 542.450450][ T6043] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 542.450764][ T6043] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 542.451094][ T6043] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 542.451403][ T6043] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 542.451727][ T6043] __sys_sendmsg (net/socket.c:2700) 
[ 542.452078][ T6043] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 542.452488][ T6043] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 542.452822][ T6043] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 542.453141][ T6043] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 542.453458][ T6043] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  542.453849][ T6043] RIP: 0033:0x7fd9e17b11e7
[ 542.454177][ T6043] 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)
[  542.455287][ T6043] RSP: 002b:00007ffd3e254fa8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  542.455757][ T6043] RAX: ffffffffffffffda RBX: 00007ffd3e2556e0 RCX: 00007fd9e17b11e7
[  542.456225][ T6043] RDX: 0000000000000000 RSI: 00007ffd3e255010 RDI: 0000000000000005
[  542.456701][ T6043] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  542.457169][ T6043] R10: 000000003f389910 R11: 0000000000000246 R12: 0000000000000004
[  542.457635][ T6043] R13: 00000000686e700a R14: 0000000000499600 R15: 0000000000000000
| [  544.893702][ T6075] ------------[ cut here ]------------
| [ 544.894071][ T6075] WARNING: CPU: 2 PID: 6075 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) 
| [  544.894716][ T6075] Modules linked in: psample xfrm_user macsec vxlan ip6_gre ip_gre gre cls_u32 sch_htb [last unloaded: netdevsim]
| [  544.896147][ T6075] Tainted: [W]=WARN
[  544.896411][ T6075] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 544.896814][ T6075] 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) 
[ 544.898681][ T6075] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  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
[  544.899861][ T6075] RSP: 0018:ffffc90003a56ef0 EFLAGS: 00010246
[  544.900295][ T6075] RAX: 0000000000000000 RBX: ffff888005d32000 RCX: 0000000000000001
[  544.900773][ T6075] RDX: 0000000000000000 RSI: ffffffff98d10751 RDI: ffffffff98458280
[  544.901265][ T6075] RBP: ffffc90003a56fd8 R08: 0000000000000000 R09: 0000000000000000
[  544.901751][ T6075] R10: ffffc90003a57008 R11: ffffffff9978d1e0 R12: 1ffff9200074ade2
[  544.902244][ T6075] R13: 00000000000005dc R14: ffffc90003a57008 R15: ffff888005d32f48
[  544.902713][ T6075] FS:  00007f11e4ef1800(0000) GS:ffff8880d1c99000(0000) knlGS:0000000000000000
[  544.903291][ T6075] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  544.903701][ T6075] CR2: 00000000004e6e50 CR3: 0000000010da4004 CR4: 0000000000772ef0
[  544.904211][ T6075] PKRU: 55555554
[  544.904462][ T6075] Call Trace:
[  544.904705][ T6075]  <TASK>
[ 544.904876][ T6075] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 544.905231][ T6075] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 544.905571][ T6075] netif_set_mtu (net/core/dev.c:9652) 
[ 544.905898][ T6075] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 544.906266][ T6075] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 544.906533][ T6075] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 544.906861][ T6075] br_add_if (net/bridge/br_if.c:697) 
[ 544.907142][ T6075] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 544.907474][ T6075] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 544.907801][ T6075] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 544.908239][ T6075] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 544.908572][ T6075] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 544.908894][ T6075] ? __kernel_text_address (kernel/extable.c:79) 
[ 544.909248][ T6075] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 544.909575][ T6075] ? __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) 
[ 544.909898][ T6075] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 544.910318][ T6075] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 544.910637][ T6075] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 544.910958][ T6075] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 544.911298][ T6075] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 544.911621][ T6075] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 544.911939][ T6075] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 544.912286][ T6075] ? __create_object (mm/kmemleak.c:771) 
[ 544.912612][ T6075] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 544.912935][ T6075] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 544.913280][ T6075] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 544.913682][ T6075] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 544.914013][ T6075] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 544.914372][ T6075] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 544.914696][ T6075] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 544.915024][ T6075] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 544.915375][ T6075] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 544.915698][ T6075] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 544.916025][ T6075] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 544.916383][ T6075] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 544.916711][ T6075] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 544.917035][ T6075] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 544.917382][ T6075] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 544.917702][ T6075] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 544.918021][ T6075] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 544.918377][ T6075] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 544.918706][ T6075] ? 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) 
[ 544.919022][ T6075] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 544.919376][ T6075] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 544.919697][ T6075] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 544.920023][ T6075] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 544.920376][ T6075] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 544.920700][ T6075] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 544.921033][ T6075] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 544.921386][ T6075] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 544.921699][ T6075] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 544.922125][ T6075] ___sys_sendmsg (net/socket.c:2670) 
[ 544.922449][ T6075] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 544.922770][ T6075] ? __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) 
[ 544.923189][ T6075] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 544.923526][ T6075] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 544.923851][ T6075] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 544.924207][ T6075] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 544.924534][ T6075] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 544.924856][ T6075] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 544.925201][ T6075] __sys_sendmsg (net/socket.c:2700) 
[ 544.925526][ T6075] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 544.925924][ T6075] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 544.926279][ T6075] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 544.926613][ T6075] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 544.926936][ T6075] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  544.927348][ T6075] RIP: 0033:0x7f11e50be1e7
[ 544.927679][ T6075] 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)
[  544.928835][ T6075] RSP: 002b:00007ffcde94fa68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  544.929338][ T6075] RAX: ffffffffffffffda RBX: 00007ffcde9501a0 RCX: 00007f11e50be1e7
[  544.929807][ T6075] RDX: 0000000000000000 RSI: 00007ffcde94fad0 RDI: 0000000000000005
[  544.930305][ T6075] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  544.930777][ T6075] R10: 000000001adc4910 R11: 0000000000000246 R12: 0000000000000004
[  544.931266][ T6075] R13: 00000000686e700d R14: 0000000000499600 R15: 0000000000000000
| [  549.523711][ T6149] ------------[ cut here ]------------
| [ 549.524016][ T6149] WARNING: CPU: 0 PID: 6149 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) 
| [  549.524624][ T6149] Modules linked in: bonding netdevsim psample xfrm_user macsec vxlan ip6_gre ip_gre gre cls_u32 sch_htb [last unloaded: netdevsim]
| [  549.527137][ T6149] Tainted: [W]=WARN
[  549.527360][ T6149] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 549.527733][ T6149] 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) 
[ 549.528041][ T6149] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  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
[  549.529116][ T6149] RSP: 0018:ffffc90000566ef0 EFLAGS: 00010246
[  549.529491][ T6149] RAX: 0000000000000000 RBX: ffff888005d2a000 RCX: 0000000000000001
[  549.529928][ T6149] RDX: 0000000000000000 RSI: ffffffff98d10751 RDI: ffffffff98458280
[  549.530403][ T6149] RBP: ffffc90000566fd8 R08: 0000000000000000 R09: 0000000000000000
[  549.530843][ T6149] R10: ffffc90000567008 R11: ffffffff9a0ceab8 R12: 1ffff920000acde2
[  549.531292][ T6149] R13: 00000000000005dc R14: ffffc90000567008 R15: ffff888005d2af48
[  549.531733][ T6149] FS:  00007fb131152800(0000) GS:ffff8880d1b99000(0000) knlGS:0000000000000000
[  549.532268][ T6149] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  549.532639][ T6149] CR2: 00000000004e5a68 CR3: 0000000004f4c004 CR4: 0000000000772ef0
[  549.533089][ T6149] PKRU: 55555554
[  549.533311][ T6149] Call Trace:
[  549.533531][ T6149]  <TASK>
[ 549.533684][ T6149] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 549.533994][ T6149] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 549.534301][ T6149] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 549.534684][ T6149] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 549.534981][ T6149] netif_set_mtu (net/core/dev.c:9652) 
[ 549.535287][ T6149] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 549.535609][ T6149] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 549.535997][ T6149] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 549.536235][ T6149] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 549.536573][ T6149] br_add_if (net/bridge/br_if.c:697) 
[ 549.536809][ T6149] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 549.537120][ T6149] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 549.537422][ T6149] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 549.537723][ T6149] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 549.538119][ T6149] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 549.538418][ T6149] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 549.538724][ T6149] ? __kernel_text_address (kernel/extable.c:79) 
[ 549.539036][ T6149] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 549.539355][ T6149] ? __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) 
[ 549.539677][ T6149] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 549.540064][ T6149] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 549.540384][ T6149] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 549.540703][ T6149] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 549.541013][ T6149] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 549.541333][ T6149] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 549.541654][ T6149] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 549.541976][ T6149] ? __create_object (mm/kmemleak.c:771) 
[ 549.542299][ T6149] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 549.542619][ T6149] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 549.542933][ T6149] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 549.543366][ T6149] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 549.543700][ T6149] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 549.544000][ T6149] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 549.544305][ T6149] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 549.544620][ T6149] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 549.544947][ T6149] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 549.545267][ T6149] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 549.545589][ T6149] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 549.545938][ T6149] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 549.546264][ T6149] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 549.546590][ T6149] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 549.546911][ T6149] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 549.547240][ T6149] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 549.547558][ T6149] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 549.547884][ T6149] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 549.548215][ T6149] ? 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) 
[ 549.548535][ T6149] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 549.548865][ T6149] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 549.549191][ T6149] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 549.549525][ T6149] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 549.549844][ T6149] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 549.550169][ T6149] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 549.550475][ T6149] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 549.550786][ T6149] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 549.551101][ T6149] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 549.551491][ T6149] ___sys_sendmsg (net/socket.c:2670) 
[ 549.551804][ T6149] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 549.552109][ T6149] ? __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) 
[ 549.552520][ T6149] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 549.552831][ T6149] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 549.553146][ T6149] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 549.553448][ T6149] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 549.553745][ T6149] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 549.554067][ T6149] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 549.554375][ T6149] __sys_sendmsg (net/socket.c:2700) 
[ 549.554675][ T6149] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 549.555064][ T6149] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 549.555379][ T6149] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 549.555680][ T6149] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 549.555989][ T6149] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  549.556390][ T6149] RIP: 0033:0x7fb13131f1e7
[ 549.556730][ T6149] Code: Unable to access opcode bytes at 0x7fb13131f1bd.

Code starting with the faulting instruction
===========================================
[  549.557126][ T6149] RSP: 002b:00007ffd92755598 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  549.557572][ T6149] RAX: ffffffffffffffda RBX: 00007ffd92755cc0 RCX: 00007fb13131f1e7
[  549.558015][ T6149] RDX: 0000000000000000 RSI: 00007ffd92755600 RDI: 0000000000000005
[  549.558481][ T6149] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  549.559236][ T6149] R10: 0000000038e0a910 R11: 0000000000000246 R12: 0000000000000004


Finger prints:
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:ip_tunnel_newlink:erspan_newlink
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:ip_tunnel_newlink:ipgre_newlink
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:br_mtu_auto_adjust:br_add_if
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:ip_tunnel_ctl:ipgre_tunnel_ctl