======================================
| [   19.730295][  T315] ip_gre: GRE over IPv4 tunneling driver
| [   19.791483][  T314] ------------[ cut here ]------------
| [ 19.791908][ T314] WARNING: CPU: 0 PID: 314 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) 
| [   19.792715][  T314] Modules linked in: ip_gre gre sch_ingress vrf veth
[   19.793703][  T314] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.794093][ T314] 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) 
[ 19.794412][ T314] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   19.795517][  T314] RSP: 0000:ffffc90000b47000 EFLAGS: 00010246
[   19.795913][  T314] RAX: 0000000000000000 RBX: ffff88800527c000 RCX: 0000000000000001
[   19.796389][  T314] RDX: 0000000000000000 RSI: ffffffffa9e9b941 RDI: ffffffffa96555e0
[   19.796851][  T314] RBP: ffffc90000b470e8 R08: ffff88800527c218 R09: 0000000000000000
[   19.797321][  T314] R10: ffffc90000b47118 R11: ffffffffaa379160 R12: 1ffff92000168e04
[   19.797879][  T314] R13: 00000000000005b6 R14: ffffc90000b47118 R15: ffff88800527c218
[   19.798582][  T314] FS:  00007f3699d37800(0000) GS:ffff88808a2b7000(0000) knlGS:0000000000000000
[   19.799151][  T314] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.799570][  T314] CR2: 00007f0fc542cd90 CR3: 00000000053b6002 CR4: 0000000000772ef0
[   19.800055][  T314] PKRU: 55555554
[   19.800290][  T314] Call Trace:
[   19.800717][  T314]  <TASK>
[ 19.800879][ T314] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 19.801280][ T314] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.801612][ T314] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.801928][ T314] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 19.802249][ T314] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.802564][ T314] netif_set_mtu (net/core/dev.c:9652) 
[ 19.802896][ T314] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.803223][ T314] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 19.803535][ T314] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.803778][ T314] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 19.804095][ T314] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 19.804415][ T314] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 19.804741][ T314] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 19.805131][ T314] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 19.805447][ T314] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 19.805770][ T314] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 19.806092][ T314] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 19.806405][ T314] ? __dev_get_by_name (net/core/dev.c:865) 
[ 19.806734][ T314] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 19.807053][ T314] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 19.807365][ T314] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.807730][ T314] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 19.808086][ T314] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 19.808405][ T314] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.808868][ T314] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.809205][ T314] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.809526][ T314] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.809859][ T314] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.813415][ T314] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.814005][ T314] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.814539][ T314] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.814864][ T314] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.815181][ T314] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.815731][ T314] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.816500][ T314] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.818601][ T314] ? 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) 
[ 19.818916][ T314] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.819238][ T314] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.819560][ T314] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.819875][ T314] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.820203][ T314] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.820510][ T314] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.820824][ T314] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.821367][ T314] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.821673][ T314] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.822073][ T314] ___sys_sendmsg (net/socket.c:2670) 
[ 19.822383][ T314] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.822692][ T314] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 19.823011][ T314] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 19.823318][ T314] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 19.823627][ T314] ? __handle_mm_fault (mm/memory.c:6212) 
[ 19.823935][ T314] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 19.824248][ T314] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 19.824587][ T314] __sys_sendmsg (net/socket.c:2700) 
[ 19.824898][ T314] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.826328][ T314] ? 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) 
[ 19.826648][ T314] ? 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) 
[ 19.826967][ T314] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.827280][ T314] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.827589][ T314] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.828429][  T314] RIP: 0033:0x7f3699f041e7
[ 19.828758][ T314] Code: Unable to access opcode bytes at 0x7f3699f041bd.

Code starting with the faulting instruction
===========================================
[   19.829168][  T314] RSP: 002b:00007ffe8c85e268 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.829649][  T314] RAX: ffffffffffffffda RBX: 00007ffe8c85e990 RCX: 00007f3699f041e7
[   19.830124][  T314] RDX: 0000000000000000 RSI: 00007ffe8c85e2d0 RDI: 0000000000000005
[   19.830593][  T314] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[   19.831520][  T314] R10: 00007f3699dfc6f8 R11: 0000000000000246 R12: 00007ffe8c85e9b0
[   19.831992][  T314] R13: 00000000686e1e82 R14: 0000000000499600 R15: 00007ffe8c85e3bc
| [   22.717139][  T342] ------------[ cut here ]------------
| [ 22.717467][ T342] WARNING: CPU: 3 PID: 342 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   22.718597][  T342] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall ip_gre gre sch_ingress vrf veth
| [   22.720031][  T342] Tainted: [W]=WARN
[   22.720269][  T342] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 22.720653][ T342] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 22.720989][ T342] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   22.722341][  T342] RSP: 0018:ffffc90000576ef0 EFLAGS: 00010246
[   22.722731][  T342] RAX: 0000000000000000 RBX: ffff888010b62000 RCX: 0000000000000001
[   22.723202][  T342] RDX: 0000000000000000 RSI: ffffffffa9e9b941 RDI: ffffffffa96555e0
[   22.723660][  T342] RBP: ffffc90000576fe0 R08: 0000000000000000 R09: 0000000000000000
[   22.724130][  T342] R10: ffffc90000577010 R11: ffffffffaaca8918 R12: 1ffff920000aede2
[   22.724593][  T342] R13: 00000000000005dc R14: ffffc90000577010 R15: ffff888010b62f08
[   22.725059][  T342] FS:  00007f7869ca9800(0000) GS:ffff88808a437000(0000) knlGS:0000000000000000
[   22.725595][  T342] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.725992][  T342] CR2: 00000000004e5aa8 CR3: 000000000c9c6002 CR4: 0000000000772ef0
[   22.726461][  T342] PKRU: 55555554
[   22.726691][  T342] Call Trace:
[   22.726920][  T342]  <TASK>
[ 22.727092][ T342] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 22.727400][ T342] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.727714][ T342] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 22.728034][ T342] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 22.728417][ T342] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 22.728736][ T342] netif_set_mtu (net/core/dev.c:9652) 
[ 22.729056][ T342] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 22.729374][ T342] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 22.729818][ T342] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 22.730062][ T342] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 22.730483][ T342] br_add_if (net/bridge/br_if.c:697) bridge 
[ 22.730837][ T342] do_set_master (net/core/rtnetlink.c:2948) 
[ 22.731171][ T342] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 22.731481][ T342] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 22.731870][ T342] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 22.732187][ T342] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 22.732494][ T342] ? __kernel_text_address (kernel/extable.c:79) 
[ 22.732802][ T342] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.733122][ T342] ? __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) 
[ 22.733432][ T342] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 22.733811][ T342] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 22.734126][ T342] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 22.734431][ T342] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 22.734733][ T342] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 22.735046][ T342] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.735354][ T342] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 22.735662][ T342] ? __create_object (mm/kmemleak.c:771) 
[ 22.735983][ T342] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 22.736289][ T342] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 22.736593][ T342] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 22.736980][ T342] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 22.737292][ T342] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 22.737601][ T342] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 22.737904][ T342] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.738231][ T342] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.738538][ T342] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 22.738838][ T342] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 22.739158][ T342] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 22.739475][ T342] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 22.739784][ T342] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 22.740103][ T342] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.740419][ T342] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 22.740726][ T342] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 22.741040][ T342] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 22.741358][ T342] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 22.741663][ T342] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 22.741980][ T342] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 22.742289][ T342] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 22.742596][ T342] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.742906][ T342] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 22.743226][ T342] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 22.743532][ T342] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 22.743846][ T342] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 22.744173][ T342] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 22.744475][ T342] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 22.744871][ T342] ___sys_sendmsg (net/socket.c:2670) 
[ 22.745185][ T342] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 22.745492][ T342] ? __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) 
[ 22.745873][ T342] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 22.746191][ T342] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.746499][ T342] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.746808][ T342] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.747123][ T342] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 22.747433][ T342] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 22.747745][ T342] __sys_sendmsg (net/socket.c:2700) 
[ 22.748057][ T342] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 22.748434][ T342] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 22.748749][ T342] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 22.749062][ T342] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 22.749368][ T342] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   22.749754][  T342] RIP: 0033:0x7f7869e761e7
[ 22.750079][ T342] 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)
[   22.751174][  T342] RSP: 002b:00007ffdf8fe36b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   22.751638][  T342] RAX: ffffffffffffffda RBX: 00007ffdf8fe3de0 RCX: 00007f7869e761e7
[   22.752104][  T342] RDX: 0000000000000000 RSI: 00007ffdf8fe3720 RDI: 0000000000000005
[   22.752561][  T342] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   22.753026][  T342] R10: 0000000031687910 R11: 0000000000000246 R12: 0000000000000004
[   22.753485][  T342] R13: 00000000686e1e85 R14: 0000000000499600 R15: 0000000000000000
| [   23.009773][  T344] ------------[ cut here ]------------
| [ 23.010265][ T344] WARNING: CPU: 2 PID: 344 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) 
| [   23.011117][  T344] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall ip_gre gre sch_ingress vrf veth
| [   23.012923][  T344] Tainted: [W]=WARN
[   23.013428][  T344] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 23.013918][ T344] 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) 
[ 23.014262][ T344] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   23.015388][  T344] RSP: 0018:ffffc900005eeef0 EFLAGS: 00010246
[   23.015834][  T344] RAX: 0000000000000000 RBX: ffff888010b62000 RCX: 0000000000000001
[   23.016318][  T344] RDX: 0000000000000000 RSI: ffffffffa9e9b941 RDI: ffffffffa96555e0
[   23.016926][  T344] RBP: ffffc900005eefe0 R08: 0000000000000000 R09: 0000000000000000
[   23.017410][  T344] R10: ffffc900005ef010 R11: ffffffffaaca8918 R12: 1ffff920000bdde2
[   23.017898][  T344] R13: 00000000000005dc R14: ffffc900005ef010 R15: ffff888010b62f08
[   23.018379][  T344] FS:  00007f274d848800(0000) GS:ffff88808a3b7000(0000) knlGS:0000000000000000
[   23.018940][  T344] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.019402][  T344] CR2: 00000000004e5ab0 CR3: 000000000b6d7006 CR4: 0000000000772ef0
[   23.019941][  T344] PKRU: 55555554
[   23.020205][  T344] Call Trace:
[   23.020448][  T344]  <TASK>
[ 23.020654][ T344] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 23.021000][ T344] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.021326][ T344] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 23.021658][ T344] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 23.022069][ T344] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[   23.022206][   T56] ip6_tunnel: h3-gt6 xmit: Local address not yet configured!
[ 23.022391][ T344] netif_set_mtu (net/core/dev.c:9652) 
[ 23.023294][ T344] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 23.023652][ T344] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 23.024118][ T344] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 23.024367][ T344] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 23.024836][ T344] br_add_if (net/bridge/br_if.c:697) bridge 
[ 23.025233][ T344] do_set_master (net/core/rtnetlink.c:2948) 
[ 23.025659][ T344] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 23.026007][ T344] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 23.026414][ T344] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 23.026776][ T344] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 23.027225][ T344] ? __kernel_text_address (kernel/extable.c:79) 
[ 23.027611][ T344] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.027986][ T344] ? __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) 
[ 23.028331][ T344] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 23.028835][ T344] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.029176][ T344] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.029508][ T344] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 23.029843][ T344] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 23.030179][ T344] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.030497][ T344] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 23.030838][ T344] ? __create_object (mm/kmemleak.c:771) 
[ 23.031169][ T344] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 23.031489][ T344] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 23.031818][ T344] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 23.032221][ T344] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 23.032544][ T344] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 23.032898][ T344] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.033239][ T344] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.033568][ T344] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.033996][ T344] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 23.034316][ T344] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.034688][ T344] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.035071][ T344] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 23.035466][ T344] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.035826][ T344] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.036172][ T344] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 23.036494][ T344] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.036829][ T344] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 23.037263][ T344] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 23.037594][ T344] ? 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) 
[ 23.037990][ T344] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 23.038363][ T344] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 23.038791][ T344] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.039131][ T344] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 23.039473][ T344] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 23.039806][ T344] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 23.040146][ T344] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 23.040468][ T344] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 23.040802][ T344] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 23.041223][ T344] ___sys_sendmsg (net/socket.c:2670) 
[ 23.041630][ T344] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 23.042020][ T344] ? __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) 
[ 23.042453][ T344] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 23.042806][ T344] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.043207][ T344] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.043532][ T344] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.044052][ T344] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 23.044453][ T344] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.044885][ T344] __sys_sendmsg (net/socket.c:2700) 
[ 23.045272][ T344] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 23.045795][ T344] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 23.046228][ T344] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.046727][ T344] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 23.047301][ T344] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   23.048011][  T344] RIP: 0033:0x7f274da151e7
[ 23.048590][ T344] 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)
[   23.050555][  T344] RSP: 002b:00007ffdf84dfca8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   23.051196][  T344] RAX: ffffffffffffffda RBX: 00007ffdf84e03d0 RCX: 00007f274da151e7
[   23.051896][  T344] RDX: 0000000000000000 RSI: 00007ffdf84dfd10 RDI: 0000000000000005
[   23.052730][  T344] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   23.053575][  T344] R10: 000000001370a910 R11: 0000000000000246 R12: 0000000000000004
[   23.054438][  T344] R13: 00000000686e1e85 R14: 0000000000499600 R15: 0000000000000000
| [   23.527599][  T347] ------------[ cut here ]------------
| [ 23.528021][ T347] WARNING: CPU: 0 PID: 347 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) 
| [   23.528630][  T347] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall ip_gre gre sch_ingress vrf veth
| [   23.530885][  T347] Tainted: [W]=WARN
[   23.531125][  T347] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 23.531506][ T347] 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) 
[ 23.531820][ T347] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   23.532917][  T347] RSP: 0018:ffffc90000697000 EFLAGS: 00010246
[   23.533313][  T347] RAX: 0000000000000000 RBX: ffff88800b56c000 RCX: 0000000000000001
[   23.533770][  T347] RDX: 0000000000000000 RSI: ffffffffa9e9b941 RDI: ffffffffa96555e0
[   23.534236][  T347] RBP: ffffc900006970e8 R08: ffff88800b56c218 R09: 0000000000000000
[   23.534699][  T347] R10: ffffc90000697118 R11: ffffffffaa379160 R12: 1ffff920000d2e04
[   23.535166][  T347] R13: 00000000000005b6 R14: ffffc90000697118 R15: ffff88800b56c218
[   23.535625][  T347] FS:  00007f2a4c0c4800(0000) GS:ffff88808a2b7000(0000) knlGS:0000000000000000
[   23.536166][  T347] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.536557][  T347] CR2: 00007f2a4c31fb78 CR3: 000000000b4dc002 CR4: 0000000000772ef0
[   23.537020][  T347] PKRU: 55555554
[   23.537251][  T347] Call Trace:
[   23.537479][  T347]  <TASK>
[ 23.537635][ T347] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 23.538021][ T347] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.538332][ T347] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 23.538646][ T347] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 23.538964][ T347] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 23.539280][ T347] netif_set_mtu (net/core/dev.c:9652) 
[ 23.539597][ T347] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 23.539916][ T347] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 23.540229][ T347] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 23.540461][ T347] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 23.540767][ T347] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 23.541093][ T347] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 23.541405][ T347] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 23.541783][ T347] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 23.542104][ T347] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 23.542411][ T347] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 23.542721][ T347] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 23.543050][ T347] ? __dev_get_by_name (net/core/dev.c:865) 
[ 23.543355][ T347] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 23.543662][ T347] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 23.543979][ T347] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 23.544282][ T347] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 23.544591][ T347] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 23.544903][ T347] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 23.545218][ T347] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.545538][ T347] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 23.545841][ T347] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.546156][ T347] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.546459][ T347] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 23.546763][ T347] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.547084][ T347] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.547392][ T347] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 23.547697][ T347] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.548024][ T347] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 23.548346][ T347] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 23.548650][ T347] ? 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) 
[ 23.548967][ T347] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 23.549280][ T347] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 23.549594][ T347] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.549905][ T347] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 23.550224][ T347] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 23.550535][ T347] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 23.550848][ T347] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 23.551168][ T347] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 23.551478][ T347] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 23.551869][ T347] ___sys_sendmsg (net/socket.c:2670) 
[ 23.552190][ T347] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 23.552495][ T347] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 23.552809][ T347] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 23.553120][ T347] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 23.553431][ T347] ? __handle_mm_fault (mm/memory.c:6212) 
[ 23.553732][ T347] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 23.554051][ T347] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 23.554374][ T347] __sys_sendmsg (net/socket.c:2700) 
[ 23.554685][ T347] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 23.554997][ T347] ? 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) 
[ 23.555307][ T347] ? 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) 
[ 23.555614][ T347] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.555921][ T347] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 23.556234][ T347] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   23.556614][  T347] RIP: 0033:0x7f2a4c2911e7
[ 23.556926][ T347] 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)
[   23.558029][  T347] RSP: 002b:00007fffca284978 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   23.558488][  T347] RAX: ffffffffffffffda RBX: 00007fffca2850a0 RCX: 00007f2a4c2911e7
[   23.558961][  T347] RDX: 0000000000000000 RSI: 00007fffca2849e0 RDI: 0000000000000005
[   23.559431][  T347] RBP: 0000000000000008 R08: 00000000000000ac R09: 0000000000000000
[   23.559890][  T347] R10: 00007f2a4c1896f8 R11: 0000000000000246 R12: 00007fffca2850c0
[   23.560353][  T347] R13: 00000000686e1e86 R14: 0000000000499600 R15: 00007fffca284ac8
| [   24.187154][  T354] ------------[ cut here ]------------
| [ 24.187461][ T354] WARNING: CPU: 3 PID: 354 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) 
| [   24.188088][  T354] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall ip_gre gre sch_ingress vrf veth
| [   24.189456][  T354] Tainted: [W]=WARN
[   24.189691][  T354] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 24.190087][ T354] 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) 
[ 24.190406][ T354] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   24.191522][  T354] RSP: 0018:ffffc900006b6ef0 EFLAGS: 00010246
[   24.191913][  T354] RAX: 0000000000000000 RBX: ffff888010b62000 RCX: 0000000000000001
[   24.192384][  T354] RDX: 0000000000000000 RSI: ffffffffa9e9b941 RDI: ffffffffa96555e0
[   24.192849][  T354] RBP: ffffc900006b6fe0 R08: 0000000000000000 R09: 0000000000000000
[   24.193322][  T354] R10: ffffc900006b7010 R11: ffffffffaaca8918 R12: 1ffff920000d6de2
[   24.193780][  T354] R13: 00000000000005dc R14: ffffc900006b7010 R15: ffff888010b62f08
[   24.194264][  T354] FS:  00007f52c4ec1800(0000) GS:ffff88808a437000(0000) knlGS:0000000000000000
[   24.194798][  T354] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.195193][  T354] CR2: 00000000004e5ac0 CR3: 000000000abc1002 CR4: 0000000000772ef0
[   24.195653][  T354] PKRU: 55555554
[   24.195881][  T354] Call Trace:
[   24.196119][  T354]  <TASK>
[ 24.196279][ T354] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 24.196590][ T354] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.196902][ T354] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 24.197220][ T354] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 24.197602][ T354] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 24.197911][ T354] netif_set_mtu (net/core/dev.c:9652) 
[ 24.198227][ T354] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 24.198546][ T354] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 24.198988][ T354] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 24.199222][ T354] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 24.199659][ T354] br_add_if (net/bridge/br_if.c:697) bridge 
[ 24.200020][ T354] do_set_master (net/core/rtnetlink.c:2948) 
[ 24.200332][ T354] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 24.200641][ T354] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 24.201063][ T354] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 24.201367][ T354] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 24.201672][ T354] ? __kernel_text_address (kernel/extable.c:79) 
[ 24.201987][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.202294][ T354] ? __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) 
[ 24.202600][ T354] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 24.202984][ T354] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.203294][ T354] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.203596][ T354] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 24.203900][ T354] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 24.204221][ T354] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.204528][ T354] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 24.204832][ T354] ? __create_object (mm/kmemleak.c:771) 
[ 24.205148][ T354] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 24.205454][ T354] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 24.205762][ T354] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 24.206148][ T354] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 24.206461][ T354] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 24.206772][ T354] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.207085][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.207400][ T354] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.207706][ T354] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 24.208020][ T354] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.208328][ T354] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.208630][ T354] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 24.208936][ T354] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.209256][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.209581][ T354] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 24.209884][ T354] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.210201][ T354] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 24.210519][ T354] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 24.210822][ T354] ? 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) 
[ 24.211137][ T354] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 24.211448][ T354] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 24.211751][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.212076][ T354] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 24.212388][ T354] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 24.212694][ T354] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 24.213015][ T354] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 24.213328][ T354] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 24.213631][ T354] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 24.214029][ T354] ___sys_sendmsg (net/socket.c:2670) 
[ 24.214333][ T354] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 24.214636][ T354] ? __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) 
[ 24.215030][ T354] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 24.215337][ T354] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.215647][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.215967][ T354] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.216273][ T354] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 24.216577][ T354] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.216890][ T354] __sys_sendmsg (net/socket.c:2700) 
[ 24.217205][ T354] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 24.217586][ T354] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 24.217903][ T354] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.218218][ T354] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 24.218526][ T354] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   24.218906][  T354] RIP: 0033:0x7f52c508e1e7
[ 24.219231][ T354] 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)
[   24.220342][  T354] RSP: 002b:00007ffd24c2afe8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   24.220805][  T354] RAX: ffffffffffffffda RBX: 00007ffd24c2b710 RCX: 00007f52c508e1e7
[   24.221271][  T354] RDX: 0000000000000000 RSI: 00007ffd24c2b050 RDI: 0000000000000005
[   24.221731][  T354] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   24.222199][  T354] R10: 0000000014076910 R11: 0000000000000246 R12: 0000000000000004
[   24.222657][  T354] R13: 00000000686e1e86 R14: 0000000000499600 R15: 0000000000000000
| [   73.649789][  T588] ------------[ cut here ]------------
| [ 73.650157][ T588] WARNING: CPU: 3 PID: 588 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) 
| [   73.650802][  T588] Modules linked in: cls_flower act_mirred 8021q bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall ip_gre gre sch_ingress vrf veth
| [   73.652922][  T588] Tainted: [W]=WARN
[   73.653181][  T588] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 73.653581][ T588] 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) 
[ 73.653909][ T588] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   73.655060][  T588] RSP: 0018:ffffc90000f9ef70 EFLAGS: 00010246
[   73.655465][  T588] RAX: 0000000000000000 RBX: ffff888010b62000 RCX: 0000000000000001
[   73.655944][  T588] RDX: 0000000000000000 RSI: ffffffffa9e9b941 RDI: ffffffffa96555e0
[   73.656439][  T588] RBP: ffffc90000f9f058 R08: 0000000000000000 R09: 0000000000000000
[   73.656919][  T588] R10: ffffc90000f9f088 R11: ffffffffa6200130 R12: 1ffff920001f3df2
[   73.657414][  T588] R13: 00000000000005dc R14: ffffc90000f9f088 R15: ffff888010b62f08
[   73.657898][  T588] FS:  00007f8b81cec800(0000) GS:ffff88808a437000(0000) knlGS:0000000000000000
[   73.658466][  T588] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   73.658873][  T588] CR2: 00000000004e5ac0 CR3: 000000000ca3a006 CR4: 0000000000772ef0
[   73.659380][  T588] PKRU: 55555554
[   73.659630][  T588] Call Trace:
[   73.659871][  T588]  <TASK>
[ 73.660046][ T588] ? __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) 
[ 73.660448][ T588] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 73.660809][ T588] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 73.661140][ T588] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 73.661460][ T588] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 73.661784][ T588] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 73.662116][ T588] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 73.662433][ T588] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 73.662752][ T588] ? ___sys_sendmsg (net/socket.c:2670) 
[ 73.663082][ T588] ? __sys_sendmsg (net/socket.c:2700) 
[ 73.663403][ T588] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 73.663720][ T588] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 73.664126][ T588] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 73.664462][ T588] netif_set_mtu (net/core/dev.c:9652) 
[ 73.664782][ T588] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 73.665126][ T588] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 73.665369][ T588] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 73.665804][ T588] br_del_if (net/bridge/br_if.c:743) bridge 
[ 73.666168][ T588] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 73.666486][ T588] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 73.666814][ T588] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 73.667148][ T588] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 73.667553][ T588] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 73.667874][ T588] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 73.668207][ T588] ? __kernel_text_address (kernel/extable.c:79) 
[ 73.668530][ T588] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 73.668851][ T588] ? __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) 
[ 73.669189][ T588] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 73.669596][ T588] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 73.669920][ T588] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 73.670249][ T588] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 73.670570][ T588] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 73.670890][ T588] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 73.671235][ T588] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 73.671552][ T588] ? __create_object (mm/kmemleak.c:771) 
[ 73.671880][ T588] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 73.672215][ T588] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 73.672536][ T588] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 73.672938][ T588] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 73.673282][ T588] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 73.673609][ T588] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 73.673929][ T588] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 73.674274][ T588] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 73.674602][ T588] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 73.674919][ T588] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 73.675250][ T588] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 73.675568][ T588] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 73.675887][ T588] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 73.676220][ T588] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 73.676546][ T588] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 73.676877][ T588] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 73.677210][ T588] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 73.677547][ T588] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 73.677868][ T588] ? 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) 
[ 73.678199][ T588] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 73.678521][ T588] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 73.678839][ T588] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 73.679180][ T588] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 73.679515][ T588] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 73.679838][ T588] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 73.680179][ T588] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 73.680500][ T588] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 73.680819][ T588] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 73.681234][ T588] ___sys_sendmsg (net/socket.c:2670) 
[ 73.681557][ T588] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 73.681875][ T588] ? __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) 
[ 73.682287][ T588] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 73.682611][ T588] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 73.682933][ T588] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 73.683270][ T588] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 73.683590][ T588] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 73.683922][ T588] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 73.684262][ T588] __sys_sendmsg (net/socket.c:2700) 
[ 73.684581][ T588] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 73.684988][ T588] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 73.685321][ T588] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 73.685643][ T588] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 73.685978][ T588] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   73.686381][  T588] RIP: 0033:0x7f8b81eb91e7
[ 73.686711][ T588] 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)
[   73.687861][  T588] RSP: 002b:00007ffe944195f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   73.688355][  T588] RAX: ffffffffffffffda RBX: 00007ffe94419d20 RCX: 00007f8b81eb91e7
[   73.688842][  T588] RDX: 0000000000000000 RSI: 00007ffe94419660 RDI: 0000000000000005
[   73.689334][  T588] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   73.689823][  T588] R10: 00007f8b81db6ee8 R11: 0000000000000246 R12: 0000000000000003


Finger prints:
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:br_mtu_auto_adjust:br_del_if
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