======================================
| [  393.390703][ T7289] ip_gre: GRE over IPv4 tunneling driver
| [  393.436285][ T7288] ------------[ cut here ]------------
| [ 393.436809][ T7288] WARNING: CPU: 1 PID: 7288 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) 
| [  393.437650][ T7288] Modules linked in: ip_gre gre cls_u32 sch_htb
[  393.438666][ T7288] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 393.439055][ T7288] 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) 
[ 393.439376][ T7288] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  393.440472][ T7288] RSP: 0018:ffffc900005178e0 EFLAGS: 00010246
[  393.440878][ T7288] RAX: 0000000000000000 RBX: ffff888013791000 RCX: 0000000000000001
[  393.441336][ T7288] RDX: 0000000000000000 RSI: ffffffffb4310759 RDI: ffffffffb3a58280
[  393.441796][ T7288] RBP: ffffc900005179c8 R08: ffff888013791218 R09: 0000000000000000
[  393.442265][ T7288] R10: ffffc900005179f8 R11: ffffffffb4d8d1e0 R12: 1ffff920000a2f20
[  393.442730][ T7288] R13: 00000000000005c4 R14: ffffc900005179f8 R15: ffffffffb78feb80
[  393.443184][ T7288] FS:  00007fa032510800(0000) GS:ffff8880b6619000(0000) knlGS:0000000000000000
[  393.443711][ T7288] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  393.444110][ T7288] CR2: 00007f4b6bc56000 CR3: 0000000009438003 CR4: 0000000000772ef0
[  393.444567][ T7288] PKRU: 55555554
[  393.444803][ T7288] Call Trace:
[  393.445038][ T7288]  <TASK>
[ 393.445192][ T7288] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 393.445579][ T7288] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 393.445892][ T7288] ? rtmsg_ifinfo (net/core/rtnetlink.c:4445 net/core/rtnetlink.c:4443) 
[ 393.446207][ T7288] netif_set_mtu (net/core/dev.c:9652) 
[ 393.446513][ T7288] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 393.446836][ T7288] ? cap_capable (security/commoncap.c:132) 
[ 393.447159][ T7288] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 393.447388][ T7288] ip_tunnel_ctl (net/ipv4/ip_tunnel.c:344 net/ipv4/ip_tunnel.c:944) 
[ 393.447698][ T7288] ipgre_tunnel_ctl (net/ipv4/ip_gre.c:839) ip_gre 
[ 393.448017][ T7288] ip_tunnel_siocdevprivate (net/ipv4/ip_tunnel.c:1061) 
[ 393.448321][ T7288] ? __pfx_ip_tunnel_siocdevprivate (net/ipv4/ip_tunnel.c:1055) 
[ 393.448695][ T7288] ? __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) 
[ 393.449024][ T7288] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 393.449342][ T7288] dev_ifsioc (net/core/dev_ioctl.c:521 net/core/dev_ioctl.c:633) 
[ 393.449651][ T7288] ? __pfx_dev_ifsioc (net/core/dev_ioctl.c:553) 
[ 393.449960][ T7288] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 393.450272][ T7288] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 393.450567][ T7288] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 393.450878][ T7288] ? cap_capable (security/commoncap.c:132) 
[ 393.451176][ T7288] ? 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) 
[ 393.451510][ T7288] dev_ioctl (net/core/dev_ioctl.c:851) 
[ 393.451754][ T7288] sock_ioctl (net/socket.c:1284) 
[ 393.451998][ T7288] ? __pfx_sock_ioctl (net/socket.c:1266) 
[ 393.452301][ T7288] ? fd_install (./arch/x86/include/asm/preempt.h:104 ./include/linux/rcupdate.h:955 fs/file.c:661) 
[ 393.452614][ T7288] ? __pfx___sys_socket (net/socket.c:1727) 
[ 393.452937][ T7288] __x64_sys_ioctl (fs/ioctl.c:52 fs/ioctl.c:907 fs/ioctl.c:893 fs/ioctl.c:893) 
[ 393.453249][ T7288] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 393.453555][ T7288] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  393.453944][ T7288] RIP: 0033:0x7fa0326d0e4b
[ 393.454274][ T7288] Code: Unable to access opcode bytes at 0x7fa0326d0e21.

Code starting with the faulting instruction
===========================================
[  393.454662][ T7288] RSP: 002b:00007ffd90a233f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000010
[  393.455122][ T7288] RAX: ffffffffffffffda RBX: 00000000000089f1 RCX: 00007fa0326d0e4b
[  393.455578][ T7288] RDX: 00007ffd90a23400 RSI: 00000000000089f1 RDI: 0000000000000006
[  393.456047][ T7288] RBP: 0000000000000006 R08: 0000000000000001 R09: 0000000000000000
[  393.456502][ T7288] R10: 00007fa0325ded70 R11: 0000000000000202 R12: 00007ffd90a23650
[  393.456961][ T7288] R13: 00007ffd90a23400 R14: 00007ffd90a249b7 R15: 0000000000000000
| [  396.150814][ T7329] ------------[ cut here ]------------
| [ 396.151508][ T7329] WARNING: CPU: 3 PID: 7329 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) 
| [  396.152602][ T7329] Modules linked in: ip_gre gre cls_u32 sch_htb
| [  396.154529][ T7329] Tainted: [W]=WARN
[  396.154990][ T7329] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 396.155653][ T7329] 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) 
[ 396.156224][ T7329] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  396.158416][ T7329] RSP: 0018:ffffc900005c7000 EFLAGS: 00010246
[  396.159116][ T7329] RAX: 0000000000000000 RBX: ffff888010f91000 RCX: 0000000000000001
[  396.159921][ T7329] RDX: 0000000000000000 RSI: ffffffffb4310759 RDI: ffffffffb3a58280
[  396.160695][ T7329] RBP: ffffc900005c70e8 R08: ffff888010f91218 R09: 0000000000000000
[  396.161512][ T7329] R10: ffffc900005c7118 R11: ffffffffb4d8d1e0 R12: 1ffff920000b8e04
[  396.162264][ T7329] R13: 00000000000005ae R14: ffffc900005c7118 R15: ffff888010f91218
[  396.163089][ T7329] FS:  00007f1c11b84800(0000) GS:ffff8880b6719000(0000) knlGS:0000000000000000
[  396.164010][ T7329] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  396.164673][ T7329] CR2: 00000000004200f0 CR3: 000000001339b003 CR4: 0000000000772ef0
[  396.165471][ T7329] PKRU: 55555554
[  396.165873][ T7329] Call Trace:
[  396.166270][ T7329]  <TASK>
[ 396.166530][ T7329] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 396.167207][ T7329] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 396.167788][ T7329] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 396.168323][ T7329] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 396.168882][ T7329] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 396.169462][ T7329] netif_set_mtu (net/core/dev.c:9652) 
[ 396.170010][ T7329] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 396.170561][ T7329] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 396.171139][ T7329] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 396.171556][ T7329] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 396.172102][ T7329] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 396.172670][ T7329] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 396.173235][ T7329] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 396.173937][ T7329] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 396.174500][ T7329] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 396.175086][ T7329] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 396.175646][ T7329] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 396.176217][ T7329] ? __dev_get_by_name (net/core/dev.c:865) 
[ 396.176790][ T7329] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 396.177344][ T7329] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 396.177915][ T7329] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 396.178464][ T7329] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 396.179060][ T7329] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 396.179632][ T7329] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 396.180221][ T7329] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 396.180815][ T7329] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 396.181367][ T7329] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 396.181956][ T7329] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 396.182516][ T7329] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 396.183112][ T7329] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 396.183686][ T7329] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 396.184264][ T7329] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 396.184801][ T7329] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 396.185348][ T7329] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 396.185930][ T7329] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 396.186483][ T7329] ? 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) 
[ 396.187075][ T7329] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 396.187636][ T7329] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 396.188203][ T7329] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 396.188780][ T7329] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 396.189344][ T7329] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 396.189915][ T7329] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 396.190507][ T7329] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 396.191104][ T7329] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 396.191643][ T7329] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 396.192222][ T7329] ___sys_sendmsg (net/socket.c:2670) 
[ 396.192550][ T7329] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 396.192881][ T7329] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 396.193209][ T7329] ? mt_find (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 lib/maple_tree.c:6937) 
[ 396.193466][ T7329] ? __handle_mm_fault (mm/memory.c:6212) 
[ 396.193795][ T7329] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 396.194114][ T7329] ? mt_find (lib/maple_tree.c:6938) 
[ 396.194372][ T7329] __sys_sendmsg (net/socket.c:2700) 
[ 396.194694][ T7329] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 396.195032][ T7329] ? do_user_addr_fault (./include/linux/mmap_lock.h:440 arch/x86/mm/fault.c:1415) 
[ 396.195370][ T7329] ? do_user_addr_fault (./include/linux/mmap_lock.h:440 arch/x86/mm/fault.c:1415) 
[ 396.195696][ T7329] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 396.196024][ T7329] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 396.196348][ T7329] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  396.196750][ T7329] RIP: 0033:0x7f1c11d511e7
[ 396.197082][ T7329] 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)
[  396.198239][ T7329] RSP: 002b:00007ffc80fd9fc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  396.198742][ T7329] RAX: ffffffffffffffda RBX: 00007ffc80fda700 RCX: 00007f1c11d511e7
[  396.199221][ T7329] RDX: 0000000000000000 RSI: 00007ffc80fda030 RDI: 0000000000000005
[  396.199705][ T7329] RBP: 0000000000000007 R08: 00000000000000b4 R09: 0000000000000000
[  396.200199][ T7329] R10: 00007f1c11c496f8 R11: 0000000000000246 R12: 00007ffc80fda720
[  396.200674][ T7329] R13: 00000000686e1bfd R14: 0000000000499600 R15: 00007ffc80fda120
| [  396.794203][ T7337] ------------[ cut here ]------------
| [ 396.794574][ T7337] WARNING: CPU: 1 PID: 7337 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) 
| [  396.795220][ T7337] Modules linked in: ip_gre gre cls_u32 sch_htb
| [  396.796294][ T7337] Tainted: [W]=WARN
[  396.796543][ T7337] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 396.796956][ T7337] 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) 
[ 396.797282][ T7337] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  396.798433][ T7337] RSP: 0018:ffffc90009c87000 EFLAGS: 00010246
[  396.799002][ T7337] RAX: 0000000000000000 RBX: ffff88801396c000 RCX: 0000000000000001
[  396.799482][ T7337] RDX: 0000000000000000 RSI: ffffffffb4310759 RDI: ffffffffb3a58280
[  396.800103][ T7337] RBP: ffffc90009c870e8 R08: ffff88801396c218 R09: 0000000000000000
[  396.800577][ T7337] R10: ffffc90009c87118 R11: df153aab6eab212a R12: 1ffff92001390e04
[  396.801354][ T7337] R13: 00000000000005b6 R14: ffffc90009c87118 R15: ffff88801396c218
[  396.802166][ T7337] FS:  00007f30d6e72800(0000) GS:ffff8880b6619000(0000) knlGS:0000000000000000
[  396.802856][ T7337] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  396.803259][ T7337] CR2: 0000000000436890 CR3: 00000000135d9005 CR4: 0000000000772ef0
[  396.803747][ T7337] PKRU: 55555554
[  396.803992][ T7337] Call Trace:
[  396.804229][ T7337]  <TASK>
[ 396.804392][ T7337] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 396.804731][ T7337] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 396.805055][ T7337] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 396.805373][ T7337] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 396.805699][ T7337] netif_set_mtu (net/core/dev.c:9652) 
[ 396.806041][ T7337] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 396.806382][ T7337] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 396.806703][ T7337] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 396.806955][ T7337] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 396.807277][ T7337] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 396.807604][ T7337] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 396.807936][ T7337] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 396.808262][ T7337] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 396.808666][ T7337] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 396.809027][ T7337] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 396.809353][ T7337] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 396.809675][ T7337] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 396.810011][ T7337] ? __dev_get_by_name (net/core/dev.c:865) 
[ 396.810336][ T7337] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 396.810658][ T7337] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 396.810992][ T7337] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 396.811320][ T7337] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 396.811646][ T7337] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 396.811997][ T7337] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 396.812329][ T7337] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 396.812664][ T7337] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 396.812989][ T7337] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 396.813311][ T7337] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 396.813629][ T7337] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 396.813973][ T7337] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 396.814302][ T7337] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 396.814629][ T7337] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 396.814959][ T7337] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 396.815280][ T7337] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 396.815613][ T7337] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 396.815936][ T7337] ? 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) 
[ 396.816263][ T7337] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 396.816589][ T7337] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 396.816917][ T7337] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 396.817241][ T7337] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 396.817571][ T7337] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 396.817909][ T7337] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 396.818240][ T7337] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 396.818567][ T7337] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 396.818894][ T7337] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 396.819305][ T7337] ___sys_sendmsg (net/socket.c:2670) 
[ 396.819629][ T7337] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 396.819957][ T7337] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 396.820279][ T7337] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 396.820596][ T7337] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 396.820934][ T7337] ? __handle_mm_fault (mm/memory.c:6212) 
[ 396.821259][ T7337] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 396.821575][ T7337] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 396.821942][ T7337] __sys_sendmsg (net/socket.c:2700) 
[ 396.822273][ T7337] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 396.822595][ T7337] ? 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) 
[ 396.822933][ T7337] ? 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) 
[ 396.823254][ T7337] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 396.823576][ T7337] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 396.823904][ T7337] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  396.824297][ T7337] RIP: 0033:0x7f30d703f1e7
[ 396.824625][ T7337] 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)
[  396.825784][ T7337] RSP: 002b:00007ffdba60b2c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  396.826270][ T7337] RAX: ffffffffffffffda RBX: 00007ffdba60ba00 RCX: 00007f30d703f1e7
[  396.826751][ T7337] RDX: 0000000000000000 RSI: 00007ffdba60b330 RDI: 0000000000000005
[  396.827226][ T7337] RBP: 0000000000000001 R08: 0000000000000048 R09: 0000000000000000
[  396.827735][ T7337] R10: 00007f30d6f376f8 R11: 0000000000000246 R12: 00007ffdba60ba20
[  396.828210][ T7337] R13: 00000000686e1bfe R14: 0000000000499600 R15: 00007ffdba60b420
| [  400.833029][ T7383] ------------[ cut here ]------------
| [ 400.833395][ T7383] WARNING: CPU: 3 PID: 7383 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) 
| [  400.834243][ T7383] Modules linked in: ip6_gre ip_gre gre cls_u32 sch_htb
| [  400.835263][ T7383] Tainted: [W]=WARN
[  400.835493][ T7383] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 400.835886][ T7383] 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) 
[ 400.836201][ T7383] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  400.837306][ T7383] RSP: 0018:ffffc900006b7000 EFLAGS: 00010246
[  400.837694][ T7383] RAX: 0000000000000000 RBX: ffff8880139a9000 RCX: 0000000000000001
[  400.838162][ T7383] RDX: 0000000000000000 RSI: ffffffffb4310759 RDI: ffffffffb3a58280
[  400.838637][ T7383] RBP: ffffc900006b70e8 R08: ffff8880139a9218 R09: 0000000000000000
[  400.839124][ T7383] R10: ffffc900006b7118 R11: ffffffffb4d8d1e0 R12: 1ffff920000d6e04
[  400.839578][ T7383] R13: 00000000000005aa R14: ffffc900006b7118 R15: ffff8880139a9218
[  400.840040][ T7383] FS:  00007fefd8929800(0000) GS:ffff8880b6719000(0000) knlGS:0000000000000000
[  400.840598][ T7383] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  400.841002][ T7383] CR2: 00000000004200f0 CR3: 000000001366e003 CR4: 0000000000772ef0
[  400.841461][ T7383] PKRU: 55555554
[  400.841691][ T7383] Call Trace:
[  400.841942][ T7383]  <TASK>
[ 400.842123][ T7383] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 400.842502][ T7383] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 400.842973][ T7383] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 400.843282][ T7383] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 400.843585][ T7383] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 400.844042][ T7383] netif_set_mtu (net/core/dev.c:9652) 
[ 400.844346][ T7383] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 400.844660][ T7383] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 400.845107][ T7383] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 400.845345][ T7383] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 400.845649][ T7383] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 400.845986][ T7383] ? ipgre_netlink_parms (net/ipv4/ip_gre.c:1197) ip_gre 
[ 400.846373][ T7383] erspan_newlink (net/ipv4/ip_gre.c:1436 (discriminator 4)) ip_gre 
[ 400.846685][ T7383] ? __pfx_erspan_newlink (net/ipv4/ip_gre.c:1422) ip_gre 
[ 400.847070][ T7383] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 400.847381][ T7383] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 400.847691][ T7383] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 400.848022][ T7383] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 400.848332][ T7383] ? __dev_get_by_name (net/core/dev.c:865) 
[ 400.848634][ T7383] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 400.848944][ T7383] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 400.849272][ T7383] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 400.849577][ T7383] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 400.849911][ T7383] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 400.850233][ T7383] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 400.850543][ T7383] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 400.850864][ T7383] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 400.851165][ T7383] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 400.851471][ T7383] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 400.851782][ T7383] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 400.852107][ T7383] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 400.852425][ T7383] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 400.852750][ T7383] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 400.853054][ T7383] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 400.853357][ T7383] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 400.853675][ T7383] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 400.853995][ T7383] ? 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) 
[ 400.854302][ T7383] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 400.854612][ T7383] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 400.854921][ T7383] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 400.855232][ T7383] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 400.855542][ T7383] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 400.855854][ T7383] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 400.856169][ T7383] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 400.856476][ T7383] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 400.856799][ T7383] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 400.857334][ T7383] ___sys_sendmsg (net/socket.c:2670) 
[ 400.857639][ T7383] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 400.857959][ T7383] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 400.858266][ T7383] ? mt_find (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 lib/maple_tree.c:6937) 
[ 400.858499][ T7383] ? __handle_mm_fault (mm/memory.c:6212) 
[ 400.858808][ T7383] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 400.859112][ T7383] ? mt_find (lib/maple_tree.c:6938) 
[ 400.859358][ T7383] __sys_sendmsg (net/socket.c:2700) 
[ 400.859661][ T7383] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 400.859971][ T7383] ? do_user_addr_fault (./include/linux/mmap_lock.h:440 arch/x86/mm/fault.c:1415) 
[ 400.860283][ T7383] ? do_user_addr_fault (./include/linux/mmap_lock.h:440 arch/x86/mm/fault.c:1415) 
[ 400.860590][ T7383] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 400.860902][ T7383] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 400.861212][ T7383] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  400.861585][ T7383] RIP: 0033:0x7fefd8af61e7
[ 400.861916][ T7383] 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)
[  400.863010][ T7383] RSP: 002b:00007ffdf1a43e48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  400.863471][ T7383] RAX: ffffffffffffffda RBX: 00007ffdf1a44580 RCX: 00007fefd8af61e7
[  400.863934][ T7383] RDX: 0000000000000000 RSI: 00007ffdf1a43eb0 RDI: 0000000000000005
[  400.864386][ T7383] RBP: 000000000000000b R08: 00000000000000c4 R09: 0000000000000000
[  400.864848][ T7383] R10: 00007fefd89ee6f8 R11: 0000000000000246 R12: 00007ffdf1a445a0
[  400.865308][ T7383] R13: 00000000686e1c02 R14: 0000000000499600 R15: 00007ffdf1a43fa0
| [  401.472052][ T7391] ------------[ cut here ]------------
| [ 401.472430][ T7391] WARNING: CPU: 1 PID: 7391 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) 
| [  401.473042][ T7391] Modules linked in: ip6_gre ip_gre gre cls_u32 sch_htb
| [  401.474114][ T7391] Tainted: [W]=WARN
[  401.474347][ T7391] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 401.474734][ T7391] 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) 
[ 401.475048][ T7391] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  401.476152][ T7391] RSP: 0018:ffffc900005c7000 EFLAGS: 00010246
[  401.476538][ T7391] RAX: 0000000000000000 RBX: ffff8880139f9000 RCX: 0000000000000001
[  401.477000][ T7391] RDX: 0000000000000000 RSI: ffffffffb4310759 RDI: ffffffffb3a58280
[  401.477452][ T7391] RBP: ffffc900005c70e8 R08: ffff8880139f9218 R09: 0000000000000000
[  401.477942][ T7391] R10: ffffc900005c7118 R11: ffffffffb4d8d1e0 R12: 1ffff920000b8e04
[  401.478418][ T7391] R13: 00000000000005a6 R14: ffffc900005c7118 R15: ffff8880139f9218
[  401.478883][ T7391] FS:  00007f0f7be13800(0000) GS:ffff8880b6619000(0000) knlGS:0000000000000000
[  401.479415][ T7391] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  401.479831][ T7391] CR2: 00000000004200f0 CR3: 00000000116fa004 CR4: 0000000000772ef0
[  401.480294][ T7391] PKRU: 55555554
[  401.480524][ T7391] Call Trace:
[  401.480762][ T7391]  <TASK>
[ 401.480920][ T7391] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 401.481303][ T7391] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 401.481611][ T7391] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 401.481963][ T7391] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 401.482300][ T7391] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 401.482615][ T7391] netif_set_mtu (net/core/dev.c:9652) 
[ 401.482935][ T7391] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 401.483252][ T7391] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 401.483558][ T7391] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 401.483800][ T7391] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 401.484110][ T7391] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 401.484418][ T7391] ? ipgre_netlink_parms (net/ipv4/ip_gre.c:1197) ip_gre 
[ 401.484814][ T7391] erspan_newlink (net/ipv4/ip_gre.c:1436 (discriminator 4)) ip_gre 
[ 401.485122][ T7391] ? __pfx_erspan_newlink (net/ipv4/ip_gre.c:1422) ip_gre 
[ 401.485501][ T7391] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 401.485824][ T7391] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 401.486167][ T7391] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 401.486477][ T7391] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 401.486797][ T7391] ? __dev_get_by_name (net/core/dev.c:865) 
[ 401.487105][ T7391] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 401.487409][ T7391] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 401.487730][ T7391] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 401.488033][ T7391] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 401.488345][ T7391] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 401.488656][ T7391] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 401.488974][ T7391] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 401.489296][ T7391] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 401.489597][ T7391] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 401.489931][ T7391] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 401.490250][ T7391] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 401.490555][ T7391] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 401.490872][ T7391] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 401.491182][ T7391] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 401.491491][ T7391] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 401.491805][ T7391] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 401.492132][ T7391] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 401.492434][ T7391] ? 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) 
[ 401.492749][ T7391] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 401.493059][ T7391] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 401.493360][ T7391] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 401.493674][ T7391] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 401.494025][ T7391] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 401.494333][ T7391] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 401.494645][ T7391] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 401.494960][ T7391] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 401.495262][ T7391] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 401.495653][ T7391] ___sys_sendmsg (net/socket.c:2670) 
[ 401.495975][ T7391] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 401.496282][ T7391] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 401.496598][ T7391] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 401.496910][ T7391] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 401.497217][ T7391] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 401.497529][ T7391] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 401.497848][ T7391] __sys_sendmsg (net/socket.c:2700) 
[ 401.498183][ T7391] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 401.498505][ T7391] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 401.498828][ T7391] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 401.499139][ T7391] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  401.499512][ T7391] RIP: 0033:0x7f0f7bfe01e7
[ 401.499834][ T7391] 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)
[  401.500935][ T7391] RSP: 002b:00007ffd7c85c928 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  401.501394][ T7391] RAX: ffffffffffffffda RBX: 00007ffd7c85d060 RCX: 00007f0f7bfe01e7
[  401.501857][ T7391] RDX: 0000000000000000 RSI: 00007ffd7c85c990 RDI: 0000000000000005
[  401.502352][ T7391] RBP: 000000000000000d R08: 00000000000000cc R09: 0000000000000000
[  401.502826][ T7391] R10: 00007f0f7bed86f8 R11: 0000000000000246 R12: 00007ffd7c85d080
[  401.503283][ T7391] R13: 00000000686e1c02 R14: 0000000000499600 R15: 00007ffd7c85ca80
| [  402.142170][ T7399] ------------[ cut here ]------------
| [ 402.142544][ T7399] WARNING: CPU: 0 PID: 7399 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) 
| [  402.143157][ T7399] Modules linked in: ip6_gre ip_gre gre cls_u32 sch_htb
| [  402.144183][ T7399] Tainted: [W]=WARN
[  402.144416][ T7399] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 402.144831][ T7399] 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) 
[ 402.145144][ T7399] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  402.146237][ T7399] RSP: 0018:ffffc900005c7000 EFLAGS: 00010246
[  402.146622][ T7399] RAX: 0000000000000000 RBX: ffff88800991c000 RCX: 0000000000000001
[  402.147088][ T7399] RDX: 0000000000000000 RSI: ffffffffb4310759 RDI: ffffffffb3a58280
[  402.147545][ T7399] RBP: ffffc900005c70e8 R08: ffff88800991c218 R09: 0000000000000000
[  402.148007][ T7399] R10: ffffc900005c7118 R11: 551e329adb940f3b R12: 1ffff920000b8e04
[  402.148460][ T7399] R13: 00000000000005aa R14: ffffc900005c7118 R15: ffff88800991c218
[  402.148927][ T7399] FS:  00007f031d8a2800(0000) GS:ffff8880b6599000(0000) knlGS:0000000000000000
[  402.149459][ T7399] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  402.149853][ T7399] CR2: 0000000000436890 CR3: 000000000e5b4001 CR4: 0000000000772ef0
[  402.150313][ T7399] PKRU: 55555554
[  402.150539][ T7399] Call Trace:
[  402.150776][ T7399]  <TASK>
[ 402.150932][ T7399] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 402.151242][ T7399] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 402.151546][ T7399] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 402.151861][ T7399] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 402.152183][ T7399] netif_set_mtu (net/core/dev.c:9652) 
[ 402.152485][ T7399] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 402.152809][ T7399] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 402.153121][ T7399] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 402.153353][ T7399] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 402.153656][ T7399] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 402.153969][ T7399] ? ipgre_netlink_parms (net/ipv4/ip_gre.c:1181) ip_gre 
[ 402.154355][ T7399] erspan_newlink (net/ipv4/ip_gre.c:1436 (discriminator 4)) ip_gre 
[ 402.154660][ T7399] ? __pfx_erspan_newlink (net/ipv4/ip_gre.c:1422) ip_gre 
[ 402.155043][ T7399] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 402.155362][ T7399] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 402.155668][ T7399] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 402.155979][ T7399] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 402.156281][ T7399] ? __dev_get_by_name (net/core/dev.c:865) 
[ 402.156583][ T7399] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 402.156891][ T7399] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 402.157207][ T7399] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 402.157512][ T7399] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 402.157827][ T7399] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 402.158142][ T7399] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 402.158450][ T7399] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 402.158772][ T7399] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 402.159072][ T7399] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 402.159384][ T7399] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 402.159686][ T7399] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 402.160003][ T7399] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 402.160310][ T7399] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 402.160619][ T7399] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 402.160929][ T7399] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 402.161233][ T7399] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 402.161548][ T7399] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 402.161857][ T7399] ? 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) 
[ 402.162180][ T7399] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 402.162486][ T7399] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 402.162796][ T7399] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 402.163105][ T7399] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 402.163409][ T7399] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 402.163712][ T7399] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 402.164034][ T7399] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 402.164344][ T7399] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 402.164646][ T7399] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 402.165045][ T7399] ___sys_sendmsg (net/socket.c:2670) 
[ 402.165351][ T7399] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 402.165652][ T7399] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 402.165966][ T7399] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 402.166268][ T7399] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 402.166578][ T7399] ? __handle_mm_fault (mm/memory.c:6212) 
[ 402.166891][ T7399] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 402.167193][ T7399] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 402.167515][ T7399] __sys_sendmsg (net/socket.c:2700) 
[ 402.167826][ T7399] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 402.168129][ T7399] ? 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) 
[ 402.168436][ T7399] ? 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) 
[ 402.168752][ T7399] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 402.169059][ T7399] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 402.169363][ T7399] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  402.169745][ T7399] RIP: 0033:0x7f031da6f1e7
[ 402.170069][ T7399] 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)
[  402.171162][ T7399] RSP: 002b:00007ffc3396b3e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  402.171620][ T7399] RAX: ffffffffffffffda RBX: 00007ffc3396bb20 RCX: 00007f031da6f1e7
[  402.172087][ T7399] RDX: 0000000000000000 RSI: 00007ffc3396b450 RDI: 0000000000000005
[  402.172541][ T7399] RBP: 0000000000000001 R08: 0000000000000048 R09: 0000000000000000
[  402.173009][ T7399] R10: 00007f031d9676f8 R11: 0000000000000246 R12: 00007ffc3396bb40
[  402.173462][ T7399] R13: 00000000686e1c03 R14: 0000000000499600 R15: 00007ffc3396b540
| [  405.650067][ T7439] ------------[ cut here ]------------
| [ 405.650436][ T7439] WARNING: CPU: 2 PID: 7439 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) 
| [  405.651140][ T7439] Modules linked in: ip6_gre ip_gre gre cls_u32 sch_htb
| [  405.652204][ T7439] Tainted: [W]=WARN
[  405.652445][ T7439] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 405.652994][ T7439] 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) 
[ 405.653389][ T7439] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  405.654688][ T7439] RSP: 0018:ffffc90000826ef0 EFLAGS: 00010246
[  405.655127][ T7439] RAX: 0000000000000000 RBX: ffff8880117f2000 RCX: 0000000000000001
[  405.655760][ T7439] RDX: 0000000000000000 RSI: ffffffffb4310759 RDI: ffffffffb3a58280
[  405.656236][ T7439] RBP: ffffc90000826fd8 R08: 0000000000000000 R09: 0000000000000000
[  405.656897][ T7439] R10: ffffc90000827008 R11: ffffffffb56ceab8 R12: 1ffff92000104de2
[  405.657662][ T7439] R13: 00000000000005dc R14: ffffc90000827008 R15: ffff8880117f2f48
[  405.658203][ T7439] FS:  00007f0c03f4c800(0000) GS:ffff8880b6699000(0000) knlGS:0000000000000000
[  405.658858][ T7439] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  405.659261][ T7439] CR2: 00000000004e5db0 CR3: 0000000012557004 CR4: 0000000000772ef0
[  405.659885][ T7439] PKRU: 55555554
[  405.660163][ T7439] Call Trace:
[  405.660453][ T7439]  <TASK>
[ 405.660677][ T7439] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 405.661144][ T7439] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 405.661520][ T7439] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 405.661978][ T7439] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 405.662351][ T7439] netif_set_mtu (net/core/dev.c:9652) 
[ 405.662666][ T7439] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 405.663010][ T7439] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 405.663553][ T7439] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 405.663869][ T7439] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 405.664264][ T7439] br_add_if (net/bridge/br_if.c:697) 
[ 405.664582][ T7439] do_set_master (net/core/rtnetlink.c:2948) 
[ 405.664932][ T7439] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 405.665345][ T7439] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 405.665764][ T7439] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 405.666076][ T7439] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 405.666529][ T7439] ? __kernel_text_address (kernel/extable.c:79) 
[ 405.666966][ T7439] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 405.667445][ T7439] ? __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) 
[ 405.668016][ T7439] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 405.668506][ T7439] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 405.668929][ T7439] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 405.669244][ T7439] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 405.669554][ T7439] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 405.669908][ T7439] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 405.670369][ T7439] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 405.670768][ T7439] ? __create_object (mm/kmemleak.c:771) 
[ 405.671223][ T7439] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 405.671634][ T7439] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 405.672041][ T7439] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 405.672537][ T7439] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 405.672888][ T7439] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 405.673205][ T7439] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 405.673638][ T7439] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 405.674089][ T7439] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 405.674475][ T7439] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 405.674946][ T7439] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 405.675347][ T7439] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 405.675661][ T7439] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 405.676095][ T7439] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 405.676462][ T7439] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 405.676801][ T7439] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 405.677113][ T7439] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 405.677425][ T7439] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 405.677763][ T7439] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 405.678074][ T7439] ? 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) 
[ 405.678383][ T7439] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 405.678697][ T7439] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 405.679036][ T7439] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 405.679369][ T7439] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 405.679682][ T7439] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 405.680017][ T7439] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 405.680331][ T7439] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 405.680643][ T7439] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 405.680973][ T7439] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 405.681367][ T7439] ___sys_sendmsg (net/socket.c:2670) 
[ 405.681678][ T7439] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 405.682029][ T7439] ? __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) 
[ 405.682418][ T7439] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 405.682752][ T7439] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 405.683070][ T7439] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 405.683385][ T7439] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 405.683690][ T7439] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 405.684040][ T7439] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 405.684358][ T7439] __sys_sendmsg (net/socket.c:2700) 
[ 405.684667][ T7439] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 405.685066][ T7439] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 405.685387][ T7439] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 405.685696][ T7439] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 405.686032][ T7439] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  405.686409][ T7439] RIP: 0033:0x7f0c041191e7
[ 405.686762][ T7439] Code: Unable to access opcode bytes at 0x7f0c041191bd.

Code starting with the faulting instruction
===========================================
[  405.687165][ T7439] RSP: 002b:00007ffca19f5f08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  405.687729][ T7439] RAX: ffffffffffffffda RBX: 00007ffca19f6630 RCX: 00007f0c041191e7
[  405.688264][ T7439] RDX: 0000000000000000 RSI: 00007ffca19f5f70 RDI: 0000000000000005
[  405.688888][ T7439] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  405.689481][ T7439] R10: 0000000038b80910 R11: 0000000000000246 R12: 0000000000000004
[  405.690220][ T7439] R13: 00000000686e1c07 R14: 0000000000499600 R15: 0000000000000000
| [  546.881903][ T9859] ------------[ cut here ]------------
| [ 546.882251][ T9859] WARNING: CPU: 3 PID: 9859 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) 
| [  546.883232][ T9859] Modules linked in: psample xfrm_user macsec vxlan ip6_gre ip_gre gre cls_u32 sch_htb [last unloaded: netdevsim]
| [  546.884552][ T9859] Tainted: [W]=WARN
[  546.884784][ T9859] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 546.885153][ T9859] 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) 
[ 546.885460][ T9859] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  546.886537][ T9859] RSP: 0018:ffffc90000656ef0 EFLAGS: 00010246
[  546.886923][ T9859] RAX: 0000000000000000 RBX: ffff8880094ba000 RCX: 0000000000000001
[  546.887379][ T9859] RDX: 0000000000000000 RSI: ffffffffb4310759 RDI: ffffffffb3a58280
[  546.887838][ T9859] RBP: ffffc90000656fd8 R08: 0000000000000000 R09: 0000000000000000
[  546.888284][ T9859] R10: ffffc90000657008 R11: ffffffffb4d8d1e0 R12: 1ffff920000cade2
[  546.888737][ T9859] R13: 00000000000005dc R14: ffffc90000657008 R15: ffff8880094baf48
[  546.889177][ T9859] FS:  00007f3d91600800(0000) GS:ffff8880b6719000(0000) knlGS:0000000000000000
[  546.889743][ T9859] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  546.890126][ T9859] CR2: 00000000004e6eb8 CR3: 0000000012e53003 CR4: 0000000000772ef0
[  546.890586][ T9859] PKRU: 55555554
[  546.890829][ T9859] Call Trace:
[  546.891063][ T9859]  <TASK>
[ 546.891217][ T9859] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 546.891526][ T9859] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 546.891874][ T9859] netif_set_mtu (net/core/dev.c:9652) 
[ 546.892201][ T9859] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 546.892555][ T9859] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 546.892791][ T9859] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 546.893096][ T9859] br_add_if (net/bridge/br_if.c:697) 
[ 546.893331][ T9859] do_set_master (net/core/rtnetlink.c:2948) 
[ 546.893642][ T9859] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 546.893973][ T9859] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 546.894277][ T9859] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 546.894653][ T9859] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 546.894959][ T9859] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 546.895254][ T9859] ? __kernel_text_address (kernel/extable.c:79) 
[ 546.895551][ T9859] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 546.895858][ T9859] ? __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) 
[ 546.896168][ T9859] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 546.896535][ T9859] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 546.896841][ T9859] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 546.897134][ T9859] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 546.897441][ T9859] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 546.897751][ T9859] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 546.898050][ T9859] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 546.898358][ T9859] ? __create_object (mm/kmemleak.c:771) 
[ 546.898675][ T9859] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 546.898998][ T9859] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 546.899309][ T9859] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 546.899700][ T9859] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 546.900027][ T9859] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 546.900344][ T9859] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 546.900639][ T9859] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 546.900958][ T9859] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 546.901255][ T9859] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 546.901546][ T9859] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 546.901869][ T9859] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 546.902203][ T9859] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 546.902528][ T9859] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 546.902856][ T9859] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 546.903158][ T9859] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 546.903474][ T9859] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 546.903785][ T9859] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 546.904092][ T9859] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 546.904388][ T9859] ? 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) 
[ 546.904685][ T9859] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 546.904994][ T9859] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 546.905291][ T9859] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 546.905593][ T9859] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 546.905900][ T9859] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 546.906196][ T9859] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 546.906499][ T9859] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 546.906813][ T9859] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 546.907105][ T9859] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 546.907501][ T9859] ___sys_sendmsg (net/socket.c:2670) 
[ 546.907814][ T9859] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 546.908110][ T9859] ? __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) 
[ 546.908479][ T9859] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 546.908789][ T9859] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 546.909104][ T9859] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 546.909405][ T9859] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 546.909701][ T9859] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 546.910011][ T9859] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 546.910324][ T9859] __sys_sendmsg (net/socket.c:2700) 
[ 546.910624][ T9859] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 546.910999][ T9859] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 546.911316][ T9859] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 546.911617][ T9859] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 546.911941][ T9859] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  546.912367][ T9859] RIP: 0033:0x7f3d917cd1e7
[ 546.912688][ T9859] 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)
[  546.913801][ T9859] RSP: 002b:00007ffff711f468 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  546.914250][ T9859] RAX: ffffffffffffffda RBX: 00007ffff711fba0 RCX: 00007f3d917cd1e7
[  546.914711][ T9859] RDX: 0000000000000000 RSI: 00007ffff711f4d0 RDI: 0000000000000005
[  546.915171][ T9859] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  546.915632][ T9859] R10: 0000000022545910 R11: 0000000000000246 R12: 0000000000000004
[  546.916111][ T9859] R13: 00000000686e1c94 R14: 0000000000499600 R15: 0000000000000000
| [  549.483907][ T9891] ------------[ cut here ]------------
| [ 549.484217][ T9891] WARNING: CPU: 0 PID: 9891 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) 
| [  549.486334][ T9891] Modules linked in: psample xfrm_user macsec vxlan ip6_gre ip_gre gre cls_u32 sch_htb [last unloaded: netdevsim]
| [  549.487712][ T9891] Tainted: [W]=WARN
[  549.487961][ T9891] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 549.488338][ T9891] 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) 
[ 549.488645][ T9891] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  549.489704][ T9891] RSP: 0018:ffffc900005f6ef0 EFLAGS: 00010246
[  549.490088][ T9891] RAX: 0000000000000000 RBX: ffff888011562000 RCX: 0000000000000001
[  549.490538][ T9891] RDX: 0000000000000000 RSI: ffffffffb4310759 RDI: ffffffffb3a58280
[  549.490989][ T9891] RBP: ffffc900005f6fd8 R08: 0000000000000000 R09: 0000000000000000
[  549.491429][ T9891] R10: ffffc900005f7008 R11: ffffffffb4d8d1e0 R12: 1ffff920000bede2
[  549.491878][ T9891] R13: 00000000000005dc R14: ffffc900005f7008 R15: ffff888011562f48
[  549.492343][ T9891] FS:  00007f936d416800(0000) GS:ffff8880b6599000(0000) knlGS:0000000000000000
[  549.492868][ T9891] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  549.493241][ T9891] CR2: 00000000004e6e50 CR3: 0000000010d1f006 CR4: 0000000000772ef0
[  549.493686][ T9891] PKRU: 55555554
[  549.493917][ T9891] Call Trace:
[  549.494138][ T9891]  <TASK>
[ 549.494300][ T9891] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 549.494598][ T9891] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 549.494917][ T9891] netif_set_mtu (net/core/dev.c:9652) 
[ 549.495215][ T9891] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 549.495526][ T9891] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 549.495763][ T9891] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 549.496066][ T9891] br_add_if (net/bridge/br_if.c:697) 
[ 549.496298][ T9891] do_set_master (net/core/rtnetlink.c:2948) 
[ 549.496603][ T9891] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 549.496910][ T9891] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 549.497284][ T9891] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 549.497579][ T9891] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 549.497881][ T9891] ? __kernel_text_address (kernel/extable.c:79) 
[ 549.498187][ T9891] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 549.498483][ T9891] ? __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) 
[ 549.498799][ T9891] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 549.499167][ T9891] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 549.499463][ T9891] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 549.499786][ T9891] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 549.500083][ T9891] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 549.500381][ T9891] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 549.500678][ T9891] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 549.500989][ T9891] ? __create_object (mm/kmemleak.c:771) 
[ 549.501287][ T9891] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 549.501590][ T9891] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 549.501904][ T9891] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 549.502281][ T9891] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 549.502583][ T9891] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 549.502897][ T9891] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 549.503191][ T9891] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 549.503503][ T9891] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 549.503807][ T9891] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 549.504101][ T9891] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 549.504398][ T9891] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 549.504692][ T9891] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 549.504996][ T9891] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 549.505297][ T9891] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 549.505608][ T9891] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 549.505915][ T9891] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 549.506213][ T9891] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 549.506518][ T9891] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 549.506824][ T9891] ? 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) 
[ 549.507123][ T9891] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 549.507421][ T9891] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 549.507739][ T9891] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 549.508042][ T9891] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 549.508341][ T9891] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 549.508635][ T9891] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 549.508947][ T9891] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 549.509246][ T9891] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 549.509539][ T9891] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 549.509935][ T9891] ___sys_sendmsg (net/socket.c:2670) 
[ 549.510227][ T9891] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 549.510518][ T9891] ? __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) 
[ 549.510898][ T9891] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 549.511198][ T9891] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 549.511499][ T9891] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 549.511807][ T9891] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 549.512103][ T9891] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 549.512411][ T9891] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 549.512727][ T9891] __sys_sendmsg (net/socket.c:2700) 
[ 549.513027][ T9891] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 549.513410][ T9891] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 549.513729][ T9891] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 549.514030][ T9891] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 549.514327][ T9891] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  549.514707][ T9891] RIP: 0033:0x7f936d5e31e7
[ 549.515027][ T9891] 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)
[  549.516091][ T9891] RSP: 002b:00007ffc2633ced8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  549.516545][ T9891] RAX: ffffffffffffffda RBX: 00007ffc2633d610 RCX: 00007f936d5e31e7
[  549.516999][ T9891] RDX: 0000000000000000 RSI: 00007ffc2633cf40 RDI: 0000000000000005
[  549.517444][ T9891] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  549.517890][ T9891] R10: 000000000acd7910 R11: 0000000000000246 R12: 0000000000000004
[  549.518334][ T9891] R13: 00000000686e1c96 R14: 0000000000499600 R15: 0000000000000000
| [  553.949248][ T9962] ------------[ cut here ]------------
| [ 553.949617][ T9962] WARNING: CPU: 3 PID: 9962 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) 
| [  553.951770][ T9962] Modules linked in: bonding netdevsim psample xfrm_user macsec vxlan ip6_gre ip_gre gre cls_u32 sch_htb [last unloaded: netdevsim]
| [  553.953281][ T9962] Tainted: [W]=WARN
[  553.953523][ T9962] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 553.953931][ T9962] 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) 
[ 553.954274][ T9962] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  553.955424][ T9962] RSP: 0018:ffffc90000536ef0 EFLAGS: 00010246
[  553.955834][ T9962] RAX: 0000000000000000 RBX: ffff8880058a2000 RCX: 0000000000000001
[  553.956313][ T9962] RDX: 0000000000000000 RSI: ffffffffb4310759 RDI: ffffffffb3a58280
[  553.956803][ T9962] RBP: ffffc90000536fd8 R08: 0000000000000000 R09: 0000000000000000
[  553.957285][ T9962] R10: ffffc90000537008 R11: ffffffffb4d8d1e0 R12: 1ffff920000a6de2
[  553.957770][ T9962] R13: 00000000000005dc R14: ffffc90000537008 R15: ffff8880058a2f48
[  553.958249][ T9962] FS:  00007fe8d1a70800(0000) GS:ffff8880b6719000(0000) knlGS:0000000000000000
[  553.958810][ T9962] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  553.959215][ T9962] CR2: 00000000004e5a68 CR3: 0000000009fe8005 CR4: 0000000000772ef0
[  553.959690][ T9962] PKRU: 55555554
[  553.959939][ T9962] Call Trace:
[  553.960178][ T9962]  <TASK>
[ 553.960345][ T9962] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 553.960666][ T9962] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 553.961005][ T9962] netif_set_mtu (net/core/dev.c:9652) 
[ 553.961323][ T9962] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 553.961665][ T9962] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 553.961918][ T9962] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 553.962259][ T9962] br_add_if (net/bridge/br_if.c:697) 
[ 553.962513][ T9962] do_set_master (net/core/rtnetlink.c:2948) 
[ 553.962840][ T9962] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 553.963167][ T9962] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 553.963492][ T9962] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 553.963908][ T9962] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 553.964239][ T9962] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 553.964555][ T9962] ? __kernel_text_address (kernel/extable.c:79) 
[ 553.964886][ T9962] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 553.965210][ T9962] ? __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) 
[ 553.965535][ T9962] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 553.965978][ T9962] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 553.966300][ T9962] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 553.966626][ T9962] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 553.966958][ T9962] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 553.967279][ T9962] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 553.967598][ T9962] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 553.967922][ T9962] ? __create_object (mm/kmemleak.c:771) 
[ 553.968242][ T9962] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 553.968560][ T9962] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 553.968896][ T9962] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 553.969292][ T9962] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 553.969624][ T9962] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 553.969965][ T9962] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 553.970288][ T9962] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 553.970612][ T9962] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 553.970944][ T9962] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 553.971266][ T9962] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 553.971596][ T9962] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 553.971917][ T9962] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 553.972243][ T9962] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 553.972563][ T9962] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 553.972891][ T9962] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 553.973210][ T9962] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 553.973528][ T9962] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 553.973879][ T9962] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 553.974197][ T9962] ? 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) 
[ 553.974514][ T9962] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 553.974838][ T9962] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 553.975153][ T9962] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 553.975472][ T9962] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 553.975797][ T9962] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 553.976124][ T9962] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 553.976448][ T9962] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 553.976774][ T9962] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 553.977088][ T9962] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 553.977500][ T9962] ___sys_sendmsg (net/socket.c:2670) 
[ 553.977823][ T9962] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 553.978136][ T9962] ? __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) 
[ 553.978530][ T9962] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 553.979168][ T9962] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 553.979487][ T9962] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 553.979818][ T9962] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 553.980130][ T9962] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 553.980665][ T9962] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 553.980993][ T9962] __sys_sendmsg (net/socket.c:2700) 
[ 553.981306][ T9962] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 553.981919][ T9962] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 553.982249][ T9962] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 553.982558][ T9962] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 553.982873][ T9962] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  553.983476][ T9962] RIP: 0033:0x7fe8d1c3d1e7
[ 553.983805][ T9962] 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)
[  553.985154][ T9962] RSP: 002b:00007ffd128f7c28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  553.985620][ T9962] RAX: ffffffffffffffda RBX: 00007ffd128f8350 RCX: 00007fe8d1c3d1e7
[  553.986309][ T9962] RDX: 0000000000000000 RSI: 00007ffd128f7c90 RDI: 0000000000000005
[  553.986787][ T9962] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  553.987252][ T9962] R10: 000000000ddf2910 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