======================================
| [   28.652876][  T332] swp1: entered promiscuous mode
| [   28.658902][  T332] ------------[ cut here ]------------
| [ 28.659419][ T332] WARNING: CPU: 3 PID: 332 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) 
| [   28.660471][  T332] Modules linked in:
[   28.661925][  T332] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 28.662436][ T332] 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) 
[ 28.663002][ T332] 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
[   28.664909][  T332] RSP: 0018:ffffc90000f46ef0 EFLAGS: 00010246
[   28.665636][  T332] RAX: 0000000000000000 RBX: ffff88800a1ea000 RCX: 0000000000000001
[   28.666492][  T332] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[   28.667184][  T332] RBP: ffffc90000f46fd8 R08: 0000000000000000 R09: 0000000000000000
[   28.667869][  T332] R10: ffffc90000f47008 R11: ffffffffaaf8d1e0 R12: 1ffff920001e8de2
[   28.668521][  T332] R13: 00000000000005dc R14: ffffc90000f47008 R15: ffff88800a1eaf48
[   28.669363][  T332] FS:  00007f9eff13f800(0000) GS:ffff8880c0519000(0000) knlGS:0000000000000000
[   28.670328][  T332] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.670796][  T332] CR2: 00000000004e6888 CR3: 000000000a9a1006 CR4: 0000000000772ef0
[   28.671581][  T332] PKRU: 55555554
[   28.671994][  T332] Call Trace:
[   28.672435][  T332]  <TASK>
[ 28.672730][ T332] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 28.673298][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 28.673744][ T332] netif_set_mtu (net/core/dev.c:9652) 
[ 28.674151][ T332] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 28.674680][ T332] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 28.674984][ T332] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 28.675529][ T332] br_add_if (net/bridge/br_if.c:697) 
[ 28.675968][ T332] do_set_master (net/core/rtnetlink.c:2948) 
[ 28.676542][ T332] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 28.677107][ T332] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 28.677689][ T332] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 28.678419][ T332] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 28.678828][ T332] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 28.679281][ T332] ? __kernel_text_address (kernel/extable.c:79) 
[ 28.679707][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 28.680089][ T332] ? __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) 
[ 28.680593][ T332] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 28.681279][ T332] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 28.681871][ T332] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 28.682434][ T332] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 28.682981][ T332] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 28.683556][ T332] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 28.683923][ T332] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 28.684361][ T332] ? __create_object (mm/kmemleak.c:771) 
[ 28.684760][ T332] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 28.685224][ T332] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 28.685813][ T332] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 28.686351][ T332] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 28.686752][ T332] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 28.687169][ T332] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 28.687592][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 28.688047][ T332] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 28.688546][ T332] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 28.688948][ T332] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 28.689463][ T332] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 28.689822][ T332] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 28.690251][ T332] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 28.690814][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 28.691252][ T332] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 28.691751][ T332] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 28.692187][ T332] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 28.692730][ T332] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 28.693127][ T332] ? 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) 
[ 28.693513][ T332] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 28.693923][ T332] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 28.694712][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 28.695085][ T332] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 28.695560][ T332] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 28.696002][ T332] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 28.696675][ T332] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 28.697072][ T332] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 28.697600][ T332] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 28.698302][ T332] ___sys_sendmsg (net/socket.c:2670) 
[ 28.699102][ T332] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 28.699507][ T332] ? __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) 
[ 28.700066][ T332] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 28.700682][ T332] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 28.701041][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 28.701442][ T332] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 28.701807][ T332] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 28.702166][ T332] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 28.702799][ T332] __sys_sendmsg (net/socket.c:2700) 
[ 28.703204][ T332] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 28.703897][ T332] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 28.704503][ T332] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 28.705058][ T332] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 28.705629][ T332] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   28.706308][  T332] RIP: 0033:0x7f9eff30c1e7
[ 28.707178][ T332] 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)
[   28.709290][  T332] RSP: 002b:00007fffec5c80d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   28.709893][  T332] RAX: ffffffffffffffda RBX: 00007fffec5c8810 RCX: 00007f9eff30c1e7
[   28.710695][  T332] RDX: 0000000000000000 RSI: 00007fffec5c8140 RDI: 0000000000000005
[   28.711571][  T332] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   28.712167][  T332] R10: 0000000017706910 R11: 0000000000000246 R12: 0000000000000005
[   28.712996][  T332] R13: 00000000686e2856 R14: 0000000000499600 R15: 0000000000000000
| [   29.293552][  T335] ------------[ cut here ]------------
| [ 29.293961][ T335] WARNING: CPU: 1 PID: 335 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) 
| [   29.294909][  T335] Modules linked in: vxlan
| [   29.296249][  T335] Tainted: [W]=WARN
[   29.296658][  T335] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 29.297081][ T335] 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) 
[ 29.297518][ T335] 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
[   29.298715][  T335] RSP: 0018:ffffc90000f77080 EFLAGS: 00010246
[   29.299138][  T335] RAX: 0000000000000000 RBX: ffff88800a1ea000 RCX: 0000000000000001
[   29.299643][  T335] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[   29.300139][  T335] RBP: ffffc90000f77168 R08: 0000000000000000 R09: 0000000000000000
[   29.300890][  T335] R10: ffffc90000f77198 R11: ffffffffaaf8d1e0 R12: 1ffff920001eee14
[   29.301401][  T335] R13: 00000000000005dc R14: ffffc90000f77198 R15: ffff88800a1eaf48
[   29.301902][  T335] FS:  00007f3e18886800(0000) GS:ffff8880c0419000(0000) knlGS:0000000000000000
[   29.302527][  T335] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.302950][  T335] CR2: 00007fb141bc0000 CR3: 000000000f6ae006 CR4: 0000000000772ef0
[   29.303465][  T335] PKRU: 55555554
[   29.303718][  T335] Call Trace:
[   29.303963][  T335]  <TASK>
[ 29.304136][ T335] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 29.304532][ T335] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 29.304881][ T335] netif_set_mtu (net/core/dev.c:9652) 
[ 29.305211][ T335] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 29.305574][ T335] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 29.305831][ T335] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 29.306164][ T335] br_add_if (net/bridge/br_if.c:697) 
[ 29.306454][ T335] do_set_master (net/core/rtnetlink.c:2948) 
[ 29.306782][ T335] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 29.307123][ T335] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 29.307469][ T335] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 29.307798][ T335] ? __dev_get_by_name (net/core/dev.c:865) 
[ 29.308133][ T335] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 29.308476][ T335] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 29.308808][ T335] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 29.309133][ T335] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 29.309482][ T335] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 29.309829][ T335] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 29.310163][ T335] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 29.310543][ T335] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 29.310874][ T335] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 29.311202][ T335] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 29.311541][ T335] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 29.311878][ T335] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 29.312218][ T335] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 29.312568][ T335] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 29.312899][ T335] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 29.313230][ T335] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 29.313587][ T335] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 29.313920][ T335] ? 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) 
[ 29.314291][ T335] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 29.314686][ T335] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 29.315019][ T335] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 29.315365][ T335] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 29.315696][ T335] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 29.316028][ T335] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 29.316375][ T335] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 29.316705][ T335] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 29.317034][ T335] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 29.317481][ T335] ___sys_sendmsg (net/socket.c:2670) 
[ 29.317815][ T335] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 29.318141][ T335] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 29.318499][ T335] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 29.318826][ T335] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 29.319156][ T335] ? __handle_mm_fault (mm/memory.c:6212) 
[ 29.319504][ T335] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 29.319828][ T335] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 29.320178][ T335] __sys_sendmsg (net/socket.c:2700) 
[ 29.320527][ T335] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 29.320853][ T335] ? 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) 
[ 29.321189][ T335] ? 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) 
[ 29.321535][ T335] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 29.321873][ T335] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 29.322199][ T335] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   29.322630][  T335] RIP: 0033:0x7f3e18a531e7
[ 29.322976][ T335] Code: Unable to access opcode bytes at 0x7f3e18a531bd.

Code starting with the faulting instruction
===========================================
[   29.323421][  T335] RSP: 002b:00007fff6e463778 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   29.323909][  T335] RAX: ffffffffffffffda RBX: 00007fff6e463eb0 RCX: 00007f3e18a531e7
[   29.324463][  T335] RDX: 0000000000000000 RSI: 00007fff6e4637e0 RDI: 0000000000000005
[   29.324955][  T335] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   29.325462][  T335] R10: 00007f3e18ae1ac0 R11: 0000000000000246 R12: 00007fff6e463ee8
[   29.325945][  T335] R13: 00000000686e2857 R14: 0000000000499600 R15: 00007fff6e4638d0
| [   31.496440][  T354] ------------[ cut here ]------------
| [ 31.496829][ T354] WARNING: CPU: 1 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) 
| [   31.497466][  T354] Modules linked in: vxlan
| [   31.498432][  T354] Tainted: [W]=WARN
[   31.498673][  T354] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 31.499071][ 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) 
[ 31.499414][ T354] 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
[   31.500548][  T354] RSP: 0018:ffffc90000606ef0 EFLAGS: 00010246
[   31.500942][  T354] RAX: 0000000000000000 RBX: ffff88800f442000 RCX: 0000000000000001
[   31.501424][  T354] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[   31.501896][  T354] RBP: ffffc90000606fd8 R08: 0000000000000000 R09: 0000000000000000
[   31.502370][  T354] R10: ffffc90000607008 R11: ffffffffaaf8d1e0 R12: 1ffff920000c0de2
[   31.502840][  T354] R13: 00000000000005dc R14: ffffc90000607008 R15: ffff88800f442f48
[   31.503304][  T354] FS:  00007fafb8196800(0000) GS:ffff8880c0419000(0000) knlGS:0000000000000000
[   31.503887][  T354] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.504344][  T354] CR2: 00000000004e6888 CR3: 000000000c4b1002 CR4: 0000000000772ef0
[   31.504821][  T354] PKRU: 55555554
[   31.505054][  T354] Call Trace:
[   31.505285][  T354]  <TASK>
[ 31.505454][ T354] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 31.505765][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.506090][ T354] netif_set_mtu (net/core/dev.c:9652) 
[ 31.506409][ T354] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 31.506740][ T354] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 31.506991][ T354] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 31.507333][ T354] br_add_if (net/bridge/br_if.c:697) 
[ 31.507580][ T354] do_set_master (net/core/rtnetlink.c:2948) 
[ 31.507888][ T354] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 31.508204][ T354] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 31.508524][ T354] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 31.508918][ T354] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 31.509239][ T354] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 31.509565][ T354] ? __kernel_text_address (kernel/extable.c:79) 
[ 31.509881][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.510195][ 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) 
[ 31.510519][ T354] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 31.510901][ T354] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 31.511216][ T354] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 31.511594][ T354] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 31.511916][ T354] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 31.512236][ T354] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.512560][ T354] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 31.512871][ T354] ? __create_object (mm/kmemleak.c:771) 
[ 31.513181][ T354] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 31.513501][ T354] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 31.513815][ T354] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 31.514241][ T354] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 31.514586][ T354] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 31.514913][ T354] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 31.515233][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.515573][ T354] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.515888][ T354] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 31.516197][ T354] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 31.516520][ T354] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 31.516843][ T354] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 31.517156][ T354] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 31.517483][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.517811][ T354] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 31.518129][ T354] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 31.518447][ T354] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 31.518769][ T354] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 31.519081][ 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) 
[ 31.519407][ T354] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 31.519721][ T354] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 31.520037][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.520367][ T354] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 31.520689][ T354] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 31.521003][ T354] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 31.521336][ T354] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 31.521651][ T354] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 31.521960][ T354] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 31.522363][ T354] ___sys_sendmsg (net/socket.c:2670) 
[ 31.522667][ T354] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 31.522979][ 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) 
[ 31.523393][ T354] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 31.523722][ T354] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.524035][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.524420][ T354] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.524731][ 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) 
[ 31.525041][ T354] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 31.525364][ T354] __sys_sendmsg (net/socket.c:2700) 
[ 31.525678][ T354] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 31.526067][ T354] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 31.526405][ T354] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 31.526725][ T354] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 31.527040][ T354] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   31.527448][  T354] RIP: 0033:0x7fafb83631e7
[ 31.527776][ 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)
[   31.528897][  T354] RSP: 002b:00007ffdb03e31a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   31.529386][  T354] RAX: ffffffffffffffda RBX: 00007ffdb03e38e0 RCX: 00007fafb83631e7
[   31.529859][  T354] RDX: 0000000000000000 RSI: 00007ffdb03e3210 RDI: 0000000000000005
[   31.530334][  T354] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   31.530803][  T354] R10: 000000003d48c910 R11: 0000000000000246 R12: 0000000000000005
[   31.531267][  T354] R13: 00000000686e2859 R14: 0000000000499600 R15: 0000000000000000
| [   31.925074][  T357] ------------[ cut here ]------------
| [ 31.925457][ T357] WARNING: CPU: 2 PID: 357 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) 
| [   31.926107][  T357] Modules linked in: vxlan
| [   31.927139][  T357] Tainted: [W]=WARN
[   31.927432][  T357] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 31.927847][ T357] 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) 
[ 31.928193][ T357] 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
[   31.929924][  T357] RSP: 0018:ffffc90000627080 EFLAGS: 00010246
[   31.930386][  T357] RAX: 0000000000000000 RBX: ffff88800f442000 RCX: 0000000000000001
[   31.930882][  T357] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[   31.931398][  T357] RBP: ffffc90000627168 R08: 0000000000000000 R09: 0000000000000000
[   31.931893][  T357] R10: ffffc90000627198 R11: ffffffffaaf8d1e0 R12: 1ffff920000c4e14
[   31.932397][  T357] R13: 00000000000005dc R14: ffffc90000627198 R15: ffff88800f442f48
[   31.932889][  T357] FS:  00007f88316fe800(0000) GS:ffff8880c0499000(0000) knlGS:0000000000000000
[   31.933477][  T357] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.933899][  T357] CR2: 000000000043d940 CR3: 0000000011508003 CR4: 0000000000772ef0
[   31.934416][  T357] PKRU: 55555554
[   31.934676][  T357] Call Trace:
[   31.934928][  T357]  <TASK>
[ 31.935109][ T357] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 31.935475][ T357] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.935826][ T357] netif_set_mtu (net/core/dev.c:9652) 
[ 31.936159][ T357] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 31.936529][ T357] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 31.936789][ T357] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 31.937147][ T357] br_add_if (net/bridge/br_if.c:697) 
[ 31.937429][ T357] do_set_master (net/core/rtnetlink.c:2948) 
[ 31.937764][ T357] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 31.938103][ T357] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 31.938453][ T357] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 31.938784][ T357] ? __dev_get_by_name (net/core/dev.c:865) 
[ 31.939116][ T357] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 31.939480][ T357] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 31.939840][ T357] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 31.940170][ T357] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 31.940520][ T357] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 31.940864][ T357] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 31.941199][ T357] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 31.941554][ T357] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 31.941884][ T357] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 31.942244][ T357] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 31.942593][ T357] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 31.942934][ T357] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 31.943269][ T357] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.943636][ T357] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 31.943973][ T357] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 31.944327][ T357] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 31.944673][ T357] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 31.945022][ T357] ? 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) 
[ 31.945366][ T357] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 31.945701][ T357] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 31.946030][ T357] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.946391][ T357] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 31.946741][ T357] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 31.947078][ T357] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 31.947442][ T357] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 31.947787][ T357] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 31.948118][ T357] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 31.948558][ T357] ___sys_sendmsg (net/socket.c:2670) 
[ 31.948898][ T357] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 31.949236][ T357] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 31.949595][ T357] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 31.949949][ T357] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 31.950289][ T357] ? __handle_mm_fault (mm/memory.c:6212) 
[ 31.950638][ T357] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 31.950970][ T357] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 31.951340][ T357] __sys_sendmsg (net/socket.c:2700) 
[ 31.951679][ T357] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 31.952027][ T357] ? 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) 
[ 31.952390][ T357] ? 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) 
[ 31.952736][ T357] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 31.953076][ T357] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 31.953430][ T357] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   31.953845][  T357] RIP: 0033:0x7f88318cb1e7
[ 31.954206][ T357] 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)
[   31.955411][  T357] RSP: 002b:00007ffddb0374e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   31.955920][  T357] RAX: ffffffffffffffda RBX: 00007ffddb037c20 RCX: 00007f88318cb1e7
[   31.956420][  T357] RDX: 0000000000000000 RSI: 00007ffddb037550 RDI: 0000000000000005
[   31.956922][  T357] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   31.957427][  T357] R10: 00007f8831959ac0 R11: 0000000000000246 R12: 00007ffddb037c58
[   31.957918][  T357] R13: 00000000686e285a R14: 0000000000499600 R15: 00007ffddb037640
| [   53.266043][   T66] ------------[ cut here ]------------
| [ 53.266403][ T66] WARNING: CPU: 2 PID: 66 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) 
| [   53.267056][   T66] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   53.268286][   T66] Tainted: [W]=WARN
[   53.268544][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   53.268929][   T66] Workqueue: netns cleanup_net
[ 53.269264][ T66] 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) 
[ 53.269786][ T66] 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
[   53.271139][   T66] RSP: 0000:ffffc900004775b0 EFLAGS: 00010246
[   53.271666][   T66] RAX: 0000000000000000 RBX: ffff88800a1ea000 RCX: 0000000000000001
[   53.272273][   T66] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[   53.272836][   T66] RBP: ffffc90000477698 R08: 0000000000000000 R09: 0000000000000000
[   53.273293][   T66] R10: ffffc900004776c8 R11: ffffffffa6e9be78 R12: 1ffff9200008eeba
[   53.273761][   T66] R13: 00000000000005dc R14: ffffc900004776c8 R15: ffff88800a1eaf48
[   53.274229][   T66] FS:  0000000000000000(0000) GS:ffff8880c0499000(0000) knlGS:0000000000000000
[   53.274776][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   53.275180][   T66] CR2: 00007fe6c3eb7000 CR3: 000000005d34a003 CR4: 0000000000772ef0
[   53.275646][   T66] PKRU: 55555554
[   53.275884][   T66] Call Trace:
[   53.276117][   T66]  <TASK>
[ 53.276279][ T66] ? __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) 
[ 53.276688][ T66] ? br_del_if (net/bridge/br_if.c:742) 
[ 53.276933][ T66] ? br_device_event (net/bridge/br.c:141) 
[ 53.277241][ T66] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 53.277572][ T66] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 53.277875][ T66] ? cleanup_net (net/core/net_namespace.c:684) 
[ 53.278178][ T66] ? process_one_work (kernel/workqueue.c:3238) 
[ 53.278492][ T66] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 53.278795][ T66] ? kthread (kernel/kthread.c:464) 
[ 53.279022][ T66] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 53.279357][ T66] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 53.279672][ T66] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 53.279992][ T66] netif_set_mtu (net/core/dev.c:9652) 
[ 53.280302][ T66] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 53.280635][ T66] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 53.280871][ T66] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 53.281173][ T66] br_del_if (net/bridge/br_if.c:743) 
[ 53.281420][ T66] br_device_event (net/bridge/br.c:141) 
[ 53.281726][ T66] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 53.282037][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 53.282361][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 53.282744][ T66] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 53.283045][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 53.283427][ T66] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 53.283804][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 53.284185][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 53.284593][ T66] default_device_exit_batch (net/core/dev.c:12673) 
[ 53.284896][ T66] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 53.285278][ T66] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 53.285595][ T66] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 53.285902][ T66] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 53.286212][ T66] cleanup_net (net/core/net_namespace.c:684) 
[ 53.286532][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 53.286835][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 53.287147][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 53.287468][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 53.287781][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 53.288086][ T66] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 53.288408][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 53.288717][ T66] kthread (kernel/kthread.c:464) 
[ 53.288948][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 53.289247][ T66] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 53.289557][ T66] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 53.289866][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 53.290170][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 53.290484][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 53.290784][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 53.291089][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   53.715250][   T66] ------------[ cut here ]------------
| [ 53.715570][ T66] WARNING: CPU: 3 PID: 66 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) 
| [   53.716077][   T66] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   53.717202][   T66] Tainted: [W]=WARN
[   53.717435][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   53.717808][   T66] Workqueue: netns cleanup_net
[ 53.718114][ T66] 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) 
[ 53.718420][ T66] 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
[   53.719474][   T66] RSP: 0018:ffffc900004775b0 EFLAGS: 00010246
[   53.719843][   T66] RAX: 0000000000000000 RBX: ffff88800f442000 RCX: 0000000000000001
[   53.720275][   T66] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[   53.720736][   T66] RBP: ffffc90000477698 R08: 0000000000000000 R09: 0000000000000000
[   53.721170][   T66] R10: ffffc900004776c8 R11: ffffffffaaf8d1e0 R12: 1ffff9200008eeba
[   53.721611][   T66] R13: 00000000000005dc R14: ffffc900004776c8 R15: ffff88800f442f48
[   53.722047][   T66] FS:  0000000000000000(0000) GS:ffff8880c0519000(0000) knlGS:0000000000000000
[   53.722573][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   53.722943][   T66] CR2: 0000564f15ca4dec CR3: 000000005d34a006 CR4: 0000000000772ef0
[   53.723390][   T66] PKRU: 55555554
[   53.723610][   T66] Call Trace:
[   53.723828][   T66]  <TASK>
[ 53.723976][ T66] ? __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) 
[ 53.724359][ T66] ? br_del_if (net/bridge/br_if.c:742) 
[ 53.724592][ T66] ? br_device_event (net/bridge/br.c:141) 
[ 53.724880][ T66] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 53.725177][ T66] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 53.725473][ T66] ? cleanup_net (net/core/net_namespace.c:684) 
[ 53.725761][ T66] ? process_one_work (kernel/workqueue.c:3238) 
[ 53.726050][ T66] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 53.726345][ T66] ? kthread (kernel/kthread.c:464) 
[ 53.726572][ T66] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 53.726861][ T66] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 53.727152][ T66] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 53.727471][ T66] netif_set_mtu (net/core/dev.c:9652) 
[ 53.727764][ T66] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 53.728073][ T66] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 53.728294][ T66] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 53.728600][ T66] br_del_if (net/bridge/br_if.c:743) 
[ 53.728833][ T66] br_device_event (net/bridge/br.c:141) 
[ 53.729122][ T66] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 53.729427][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 53.729726][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 53.730093][ T66] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 53.730393][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 53.730754][ T66] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 53.731122][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 53.731489][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 53.731856][ T66] default_device_exit_batch (net/core/dev.c:12673) 
[ 53.732147][ T66] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 53.732526][ T66] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 53.732823][ T66] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 53.733119][ T66] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 53.733424][ T66] cleanup_net (net/core/net_namespace.c:684) 
[ 53.733720][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 53.734012][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 53.734326][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 53.734631][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 53.734928][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 53.735232][ T66] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 53.735543][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 53.735835][ T66] kthread (kernel/kthread.c:464) 
[ 53.736056][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 53.736350][ T66] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 53.736641][ T66] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 53.736932][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 53.737220][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 53.737527][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 53.737816][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 53.738105][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   67.636829][  T608] ------------[ cut here ]------------
| [ 67.637159][ T608] WARNING: CPU: 0 PID: 608 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) 
| [   67.637804][  T608] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   67.638980][  T608] Tainted: [W]=WARN
[   67.639217][  T608] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 67.639627][ T608] 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) 
[ 67.639954][ T608] 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
[   67.641064][  T608] RSP: 0018:ffffc90000e16ef0 EFLAGS: 00010246
[   67.641467][  T608] RAX: 0000000000000000 RBX: ffff88800918a000 RCX: 0000000000000001
[   67.641921][  T608] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[   67.642413][  T608] RBP: ffffc90000e16fd8 R08: 0000000000000000 R09: 0000000000000000
[   67.642881][  T608] R10: ffffc90000e17008 R11: ffffffffaaf8d1e0 R12: 1ffff920001c2de2
[   67.643356][  T608] R13: 00000000000005dc R14: ffffc90000e17008 R15: ffff88800918af48
[   67.643814][  T608] FS:  00007fcae6229800(0000) GS:ffff8880c0399000(0000) knlGS:0000000000000000
[   67.644397][  T608] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   67.644791][  T608] CR2: 00000000004e6888 CR3: 000000000a9fc003 CR4: 0000000000772ef0
[   67.645260][  T608] PKRU: 55555554
[   67.645501][  T608] Call Trace:
[   67.645730][  T608]  <TASK>
[ 67.645902][ T608] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 67.646219][ T608] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 67.646559][ T608] netif_set_mtu (net/core/dev.c:9652) 
[ 67.646873][ T608] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 67.647261][ T608] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 67.647521][ T608] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 67.647846][ T608] br_add_if (net/bridge/br_if.c:697) 
[ 67.648112][ T608] do_set_master (net/core/rtnetlink.c:2948) 
[ 67.648438][ T608] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 67.648765][ T608] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 67.649089][ T608] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 67.649488][ T608] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 67.649819][ T608] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 67.650135][ T608] ? __kernel_text_address (kernel/extable.c:79) 
[ 67.650452][ T608] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 67.650766][ T608] ? __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) 
[ 67.651092][ T608] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 67.651482][ T608] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 67.651798][ T608] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 67.652139][ T608] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 67.652479][ T608] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 67.652803][ T608] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 67.653133][ T608] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 67.653447][ T608] ? __create_object (mm/kmemleak.c:771) 
[ 67.653763][ T608] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 67.654074][ T608] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 67.654419][ T608] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 67.654813][ T608] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 67.655135][ T608] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 67.655457][ T608] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 67.655762][ T608] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 67.656105][ T608] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 67.656426][ T608] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 67.656730][ T608] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 67.657056][ T608] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 67.657413][ T608] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 67.657723][ T608] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 67.658036][ T608] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 67.658367][ T608] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 67.658687][ T608] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 67.658990][ T608] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 67.659339][ T608] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 67.659651][ T608] ? 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) 
[ 67.659955][ T608] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 67.660303][ T608] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 67.660622][ T608] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 67.660940][ T608] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 67.661247][ T608] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 67.661562][ T608] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 67.661904][ T608] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 67.662219][ T608] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 67.662536][ T608] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 67.662925][ T608] ___sys_sendmsg (net/socket.c:2670) 
[ 67.663225][ T608] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 67.663546][ T608] ? __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) 
[ 67.663924][ T608] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 67.664279][ T608] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 67.664599][ T608] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 67.664908][ T608] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 67.665206][ T608] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 67.665528][ T608] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 67.665842][ T608] __sys_sendmsg (net/socket.c:2700) 
[ 67.666139][ T608] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 67.666516][ T608] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 67.666844][ T608] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 67.667151][ T608] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 67.667471][ T608] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   67.667852][  T608] RIP: 0033:0x7fcae63f61e7
[ 67.668218][ T608] 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)
[   67.669321][  T608] RSP: 002b:00007ffdf4730718 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   67.669780][  T608] RAX: ffffffffffffffda RBX: 00007ffdf4730e50 RCX: 00007fcae63f61e7
[   67.670236][  T608] RDX: 0000000000000000 RSI: 00007ffdf4730780 RDI: 0000000000000005
[   67.670707][  T608] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   67.671183][  T608] R10: 0000000002c69910 R11: 0000000000000246 R12: 0000000000000005
[   67.671647][  T608] R13: 00000000686e287d R14: 0000000000499600 R15: 0000000000000000
| [   68.062778][  T611] ------------[ cut here ]------------
| [ 68.063112][ T611] WARNING: CPU: 0 PID: 611 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) 
| [   68.063753][  T611] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   68.064885][  T611] Tainted: [W]=WARN
[   68.065136][  T611] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 68.065540][ T611] 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) 
[ 68.065870][ T611] 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
[   68.067457][  T611] RSP: 0018:ffffc90000e37080 EFLAGS: 00010246
[   68.067851][  T611] RAX: 0000000000000000 RBX: ffff88800918a000 RCX: 0000000000000001
[   68.068486][  T611] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[   68.068940][  T611] RBP: ffffc90000e37168 R08: 0000000000000000 R09: 0000000000000000
[   68.069563][  T611] R10: ffffc90000e37198 R11: ffffffffaaf8d1e0 R12: 1ffff920001c6e14
[   68.070034][  T611] R13: 00000000000005dc R14: ffffc90000e37198 R15: ffff88800918af48
[   68.070653][  T611] FS:  00007f84e0a90800(0000) GS:ffff8880c0399000(0000) knlGS:0000000000000000
[   68.071202][  T611] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   68.071738][  T611] CR2: 00007f84e0b90130 CR3: 00000000115c5005 CR4: 0000000000772ef0
[   68.072207][  T611] PKRU: 55555554
[   68.072588][  T611] Call Trace:
[   68.072829][  T611]  <TASK>
[ 68.072991][ T611] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 68.073364][ T611] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 68.073688][ T611] netif_set_mtu (net/core/dev.c:9652) 
[ 68.073996][ T611] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 68.074579][ T611] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 68.074815][ T611] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 68.075242][ T611] br_add_if (net/bridge/br_if.c:697) 
[ 68.075510][ T611] do_set_master (net/core/rtnetlink.c:2948) 
[ 68.075820][ T611] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 68.076146][ T611] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 68.076474][ T611] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 68.076776][ T611] ? __dev_get_by_name (net/core/dev.c:865) 
[ 68.077090][ T611] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 68.077406][ T611] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 68.077716][ T611] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 68.078031][ T611] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 68.078352][ T611] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 68.078672][ T611] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 68.078983][ T611] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 68.079299][ T611] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 68.079613][ T611] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 68.079920][ T611] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 68.080233][ T611] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 68.080555][ T611] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 68.080869][ T611] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 68.081178][ T611] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 68.081494][ T611] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 68.081806][ T611] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 68.082127][ T611] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 68.082459][ T611] ? 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) 
[ 68.082771][ T611] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 68.083082][ T611] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 68.083402][ T611] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 68.083717][ T611] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 68.084025][ T611] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 68.084349][ T611] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 68.084667][ T611] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 68.084986][ T611] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 68.085321][ T611] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 68.085741][ T611] ___sys_sendmsg (net/socket.c:2670) 
[ 68.086053][ T611] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 68.086367][ T611] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 68.086690][ T611] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 68.087007][ T611] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 68.087330][ T611] ? __handle_mm_fault (mm/memory.c:6212) 
[ 68.087635][ T611] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 68.087937][ T611] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 68.088282][ T611] __sys_sendmsg (net/socket.c:2700) 
[ 68.088601][ T611] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 68.088914][ T611] ? 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) 
[ 68.089243][ T611] ? 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) 
[ 68.089562][ T611] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 68.089879][ T611] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 68.090197][ T611] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   68.090586][  T611] RIP: 0033:0x7f84e0c5d1e7
[ 68.090911][ T611] 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)
[   68.092027][  T611] RSP: 002b:00007ffeb4e22658 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   68.092506][  T611] RAX: ffffffffffffffda RBX: 00007ffeb4e22d90 RCX: 00007f84e0c5d1e7
[   68.092978][  T611] RDX: 0000000000000000 RSI: 00007ffeb4e226c0 RDI: 0000000000000005
[   68.093468][  T611] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   68.093929][  T611] R10: 00007f84e0cebac0 R11: 0000000000000246 R12: 00007ffeb4e22dc8
[   68.094409][  T611] R13: 00000000686e287e R14: 0000000000499600 R15: 00007ffeb4e227b0
| [   70.139401][  T628] ------------[ cut here ]------------
| [ 70.139745][ T628] WARNING: CPU: 3 PID: 628 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) 
| [   70.140388][  T628] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   70.141640][  T628] Tainted: [W]=WARN
[   70.141870][  T628] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 70.142248][ T628] 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) 
[ 70.142571][ T628] 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
[   70.143721][  T628] RSP: 0018:ffffc90000f26ef0 EFLAGS: 00010246
[   70.144119][  T628] RAX: 0000000000000000 RBX: ffff888004df2000 RCX: 0000000000000001
[   70.144606][  T628] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[   70.145062][  T628] RBP: ffffc90000f26fd8 R08: 0000000000000000 R09: 0000000000000000
[   70.145547][  T628] R10: ffffc90000f27008 R11: ffffffffaaf8d1e0 R12: 1ffff920001e4de2
[   70.146010][  T628] R13: 00000000000005dc R14: ffffc90000f27008 R15: ffff888004df2f48
[   70.146495][  T628] FS:  00007fcb5ee6d800(0000) GS:ffff8880c0519000(0000) knlGS:0000000000000000
[   70.147042][  T628] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   70.147457][  T628] CR2: 00000000004e6888 CR3: 000000000c7fe005 CR4: 0000000000772ef0
[   70.147942][  T628] PKRU: 55555554
[   70.148168][  T628] Call Trace:
[   70.148412][  T628]  <TASK>
[ 70.148570][ T628] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 70.148892][ T628] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 70.149222][ T628] netif_set_mtu (net/core/dev.c:9652) 
[ 70.149532][ T628] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 70.149845][ T628] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 70.150081][ T628] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 70.150425][ T628] br_add_if (net/bridge/br_if.c:697) 
[ 70.150676][ T628] do_set_master (net/core/rtnetlink.c:2948) 
[ 70.150979][ T628] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 70.151327][ T628] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 70.151656][ T628] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 70.152044][ T628] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 70.152375][ T628] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 70.152675][ T628] ? __kernel_text_address (kernel/extable.c:79) 
[ 70.152990][ T628] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 70.153305][ T628] ? __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) 
[ 70.153621][ T628] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 70.154008][ T628] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 70.154341][ T628] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 70.154650][ T628] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 70.154950][ T628] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 70.155275][ T628] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 70.155601][ T628] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 70.155909][ T628] ? __create_object (mm/kmemleak.c:771) 
[ 70.156225][ T628] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 70.156565][ T628] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 70.156887][ T628] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 70.157272][ T628] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 70.157599][ T628] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 70.157926][ T628] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 70.158231][ T628] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 70.158565][ T628] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 70.158896][ T628] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 70.159202][ T628] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 70.159527][ T628] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 70.159871][ T628] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 70.160179][ T628] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 70.160499][ T628] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 70.160808][ T628] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 70.161115][ T628] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 70.161428][ T628] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 70.161757][ T628] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 70.162059][ T628] ? 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) 
[ 70.162367][ T628] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 70.162669][ T628] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 70.162978][ T628] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 70.163324][ T628] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 70.163630][ T628] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 70.163958][ T628] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 70.164298][ T628] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 70.164618][ T628] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 70.164931][ T628] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 70.165333][ T628] ___sys_sendmsg (net/socket.c:2670) 
[ 70.165633][ T628] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 70.165941][ T628] ? __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) 
[ 70.166324][ T628] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 70.166862][ T628] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 70.167182][ T628] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 70.167507][ T628] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 70.167817][ T628] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 70.168345][ T628] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 70.168657][ T628] __sys_sendmsg (net/socket.c:2700) 
[ 70.168950][ T628] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 70.169327][ T628] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 70.169856][ T628] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 70.170156][ T628] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 70.170469][ T628] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   70.170848][  T628] RIP: 0033:0x7fcb5f03a1e7
[ 70.171397][ T628] 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)
[   70.172692][  T628] RSP: 002b:00007ffdcfe6afb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   70.173140][  T628] RAX: ffffffffffffffda RBX: 00007ffdcfe6b6f0 RCX: 00007fcb5f03a1e7
[   70.173604][  T628] RDX: 0000000000000000 RSI: 00007ffdcfe6b020 RDI: 0000000000000005
[   70.174281][  T628] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   70.174740][  T628] R10: 0000000008978910 R11: 0000000000000246 R12: 0000000000000005
[   70.175186][  T628] R13: 00000000686e2880 R14: 0000000000499600 R15: 0000000000000000
| [   70.589673][  T631] ------------[ cut here ]------------
| [ 70.590042][ T631] WARNING: CPU: 3 PID: 631 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) 
| [   70.591305][  T631] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   70.592484][  T631] Tainted: [W]=WARN
[   70.592734][  T631] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 70.593121][ T631] 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) 
[ 70.593487][ T631] 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
[   70.594846][  T631] RSP: 0018:ffffc90000dd7080 EFLAGS: 00010246
[   70.595269][  T631] RAX: 0000000000000000 RBX: ffff888004df2000 RCX: 0000000000000001
[   70.595969][  T631] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[   70.596603][  T631] RBP: ffffc90000dd7168 R08: 0000000000000000 R09: 0000000000000000
[   70.597086][  T631] R10: ffffc90000dd7198 R11: ffffffffaaf8d1e0 R12: 1ffff920001bae14
[   70.597642][  T631] R13: 00000000000005dc R14: ffffc90000dd7198 R15: ffff888004df2f48
[   70.598127][  T631] FS:  00007f5e5e585800(0000) GS:ffff8880c0519000(0000) knlGS:0000000000000000
[   70.598706][  T631] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   70.599130][  T631] CR2: 000000000043d940 CR3: 000000000e8f8001 CR4: 0000000000772ef0
[   70.599630][  T631] PKRU: 55555554
[   70.599889][  T631] Call Trace:
[   70.600124][  T631]  <TASK>
[ 70.600286][ T631] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 70.600641][ T631] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 70.600966][ T631] netif_set_mtu (net/core/dev.c:9652) 
[ 70.601303][ T631] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 70.601644][ T631] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 70.601896][ T631] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 70.602223][ T631] br_add_if (net/bridge/br_if.c:697) 
[ 70.602486][ T631] do_set_master (net/core/rtnetlink.c:2948) 
[ 70.602815][ T631] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 70.603129][ T631] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 70.603475][ T631] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 70.603804][ T631] ? __dev_get_by_name (net/core/dev.c:865) 
[ 70.604120][ T631] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 70.604472][ T631] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 70.604810][ T631] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 70.605115][ T631] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 70.605463][ T631] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 70.605801][ T631] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 70.606142][ T631] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 70.606483][ T631] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 70.606806][ T631] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 70.607124][ T631] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 70.607455][ T631] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 70.607769][ T631] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 70.608093][ T631] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 70.608427][ T631] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 70.608755][ T631] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 70.609077][ T631] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 70.609410][ T631] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 70.609732][ T631] ? 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) 
[ 70.610057][ T631] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 70.610398][ T631] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 70.610717][ T631] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 70.611041][ T631] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 70.611385][ T631] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 70.611703][ T631] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 70.612041][ T631] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 70.612367][ T631] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 70.612677][ T631] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 70.613085][ T631] ___sys_sendmsg (net/socket.c:2670) 
[ 70.613434][ T631] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 70.613758][ T631] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 70.614083][ T631] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 70.614429][ T631] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 70.614758][ T631] ? __handle_mm_fault (mm/memory.c:6212) 
[ 70.615063][ T631] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 70.615413][ T631] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 70.615747][ T631] __sys_sendmsg (net/socket.c:2700) 
[ 70.616057][ T631] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 70.616390][ T631] ? 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) 
[ 70.616720][ T631] ? 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) 
[ 70.617028][ T631] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 70.617367][ T631] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 70.617680][ T631] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   70.618071][  T631] RIP: 0033:0x7f5e5e7521e7
[ 70.618408][ T631] 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)
[   70.619538][  T631] RSP: 002b:00007ffc307f6068 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   70.620041][  T631] RAX: ffffffffffffffda RBX: 00007ffc307f67a0 RCX: 00007f5e5e7521e7
[   70.620518][  T631] RDX: 0000000000000000 RSI: 00007ffc307f60d0 RDI: 0000000000000005
[   70.620991][  T631] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   70.621462][  T631] R10: 00007f5e5e7e0ac0 R11: 0000000000000246 R12: 00007ffc307f67d8
[   70.621934][  T631] R13: 00000000686e2880 R14: 0000000000499600 R15: 00007ffc307f61c0
| [   82.100288][   T66] ------------[ cut here ]------------
| [ 82.101097][ T66] WARNING: CPU: 0 PID: 66 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) 
| [   82.101629][   T66] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   82.102765][   T66] Tainted: [W]=WARN
[   82.102990][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   82.103381][   T66] Workqueue: netns cleanup_net
[ 82.103692][ T66] 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) 
[ 82.103993][ T66] 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
[   82.105086][   T66] RSP: 0000:ffffc900004775b0 EFLAGS: 00010246
[   82.105475][   T66] RAX: 0000000000000000 RBX: ffff88800918a000 RCX: 0000000000000001
[   82.105931][   T66] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[   82.106393][   T66] RBP: ffffc90000477698 R08: 0000000000000000 R09: 0000000000000000
[   82.106842][   T66] R10: ffffc900004776c8 R11: ffffffffaaf8d1e0 R12: 1ffff9200008eeba
[   82.107301][   T66] R13: 00000000000005dc R14: ffffc900004776c8 R15: ffff88800918af48
[   82.107761][   T66] FS:  0000000000000000(0000) GS:ffff8880c0399000(0000) knlGS:0000000000000000
[   82.108290][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   82.108684][   T66] CR2: 0000000000406141 CR3: 000000005d34a002 CR4: 0000000000772ef0
[   82.109147][   T66] PKRU: 55555554
[   82.109381][   T66] Call Trace:
[   82.109605][   T66]  <TASK>
[ 82.109755][ T66] ? __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) 
[ 82.110129][ T66] ? br_del_if (net/bridge/br_if.c:742) 
[ 82.110362][ T66] ? br_device_event (net/bridge/br.c:141) 
[ 82.110653][ T66] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 82.110952][ T66] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 82.111256][ T66] ? cleanup_net (net/core/net_namespace.c:684) 
[ 82.111559][ T66] ? process_one_work (kernel/workqueue.c:3238) 
[ 82.111858][ T66] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 82.112150][ T66] ? kthread (kernel/kthread.c:464) 
[ 82.112380][ T66] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 82.112676][ T66] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 82.112981][ T66] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 82.113296][ T66] netif_set_mtu (net/core/dev.c:9652) 
[ 82.113608][ T66] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 82.113922][ T66] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 82.114143][ T66] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 82.114473][ T66] br_del_if (net/bridge/br_if.c:743) 
[ 82.114702][ T66] br_device_event (net/bridge/br.c:141) 
[ 82.114996][ T66] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 82.115302][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 82.115630][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 82.116003][ T66] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 82.116303][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 82.116687][ T66] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 82.117053][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 82.117430][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 82.117817][ T66] default_device_exit_batch (net/core/dev.c:12673) 
[ 82.118111][ T66] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 82.118493][ T66] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 82.118790][ T66] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 82.119083][ T66] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 82.119393][ T66] cleanup_net (net/core/net_namespace.c:684) 
[ 82.119691][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 82.119988][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 82.120291][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 82.120608][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 82.120917][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 82.121217][ T66] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 82.121533][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 82.121830][ T66] kthread (kernel/kthread.c:464) 
[ 82.122053][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 82.122364][ T66] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 82.122666][ T66] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 82.122965][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 82.123264][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 82.123582][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 82.123884][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 82.124178][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   82.665215][   T66] ------------[ cut here ]------------
| [ 82.665786][ T66] WARNING: CPU: 0 PID: 66 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) 
| [   82.666336][   T66] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   82.667515][   T66] Tainted: [W]=WARN
[   82.667750][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   82.668136][   T66] Workqueue: netns cleanup_net
[ 82.668460][ T66] 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) 
[ 82.668782][ T66] 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
[   82.669900][   T66] RSP: 0000:ffffc900004775b0 EFLAGS: 00010246
[   82.670285][   T66] RAX: 0000000000000000 RBX: ffff888004df2000 RCX: 0000000000000001
[   82.670742][   T66] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[   82.671190][   T66] RBP: ffffc90000477698 R08: 0000000000000000 R09: 0000000000000000
[   82.671650][   T66] R10: ffffc900004776c8 R11: ffffffffaaf8d1e0 R12: 1ffff9200008eeba
[   82.672104][   T66] R13: 00000000000005dc R14: ffffc900004776c8 R15: ffff888004df2f48
[   82.672559][   T66] FS:  0000000000000000(0000) GS:ffff8880c0399000(0000) knlGS:0000000000000000
[   82.673084][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   82.673465][   T66] CR2: 0000000000406141 CR3: 000000001145f004 CR4: 0000000000772ef0
[   82.673930][   T66] PKRU: 55555554
[   82.674150][   T66] Call Trace:
[   82.674395][   T66]  <TASK>
[ 82.674555][ T66] ? __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) 
[ 82.674938][ T66] ? br_del_if (net/bridge/br_if.c:742) 
[ 82.675166][ T66] ? br_device_event (net/bridge/br.c:141) 
[ 82.675473][ T66] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 82.675780][ T66] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 82.676081][ T66] ? cleanup_net (net/core/net_namespace.c:684) 
[ 82.676391][ T66] ? process_one_work (kernel/workqueue.c:3238) 
[ 82.676686][ T66] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 82.676981][ T66] ? kthread (kernel/kthread.c:464) 
[ 82.677206][ T66] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 82.677521][ T66] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 82.677825][ T66] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 82.678137][ T66] netif_set_mtu (net/core/dev.c:9652) 
[ 82.678453][ T66] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 82.678765][ T66] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 82.678996][ T66] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 82.679294][ T66] br_del_if (net/bridge/br_if.c:743) 
[ 82.679536][ T66] br_device_event (net/bridge/br.c:141) 
[ 82.679833][ T66] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 82.680132][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 82.680453][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 82.680830][ T66] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 82.681127][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 82.681500][ T66] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 82.681871][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 82.682244][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 82.682633][ T66] default_device_exit_batch (net/core/dev.c:12673) 
[ 82.682932][ T66] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 82.683315][ T66] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 82.683618][ T66] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 82.683915][ T66] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 82.684218][ T66] cleanup_net (net/core/net_namespace.c:684) 
[ 82.684529][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 82.684832][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 82.685138][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 82.685449][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 82.685757][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 82.686058][ T66] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 82.686378][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 82.686676][ T66] kthread (kernel/kthread.c:464) 
[ 82.686902][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 82.687422][ T66] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 82.687732][ T66] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 82.688247][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 82.688556][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 82.688863][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 82.689158][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 82.689458][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   94.592100][  T798] ------------[ cut here ]------------
| [ 94.592470][ T798] WARNING: CPU: 0 PID: 798 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) 
| [   94.593092][  T798] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   94.594215][  T798] Tainted: [W]=WARN
[   94.594495][  T798] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 94.594886][ T798] 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) 
[ 94.595208][ T798] 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
[   94.596324][  T798] RSP: 0018:ffffc90001536ef0 EFLAGS: 00010246
[   94.596715][  T798] RAX: 0000000000000000 RBX: ffff888008dba000 RCX: 0000000000000001
[   94.597177][  T798] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[   94.597652][  T798] RBP: ffffc90001536fd8 R08: 0000000000000000 R09: 0000000000000000
[   94.598121][  T798] R10: ffffc90001537008 R11: ffffffffaaf8d1e0 R12: 1ffff920002a6de2
[   94.598600][  T798] R13: 00000000000005dc R14: ffffc90001537008 R15: ffff888008dbaf48
[   94.599053][  T798] FS:  00007fade18d5800(0000) GS:ffff8880c0399000(0000) knlGS:0000000000000000
[   94.599593][  T798] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   94.599986][  T798] CR2: 00000000004e6888 CR3: 0000000010eae003 CR4: 0000000000772ef0
[   94.600454][  T798] PKRU: 55555554
[   94.600685][  T798] Call Trace:
[   94.600911][  T798]  <TASK>
[ 94.601070][ T798] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 94.601387][ T798] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 94.601708][ T798] netif_set_mtu (net/core/dev.c:9652) 
[ 94.602033][ T798] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 94.602378][ T798] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 94.602612][ T798] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 94.602928][ T798] br_add_if (net/bridge/br_if.c:697) 
[ 94.603172][ T798] do_set_master (net/core/rtnetlink.c:2948) 
[ 94.603480][ T798] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 94.603788][ T798] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 94.604093][ T798] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 94.604503][ T798] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 94.604805][ T798] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 94.605109][ T798] ? __kernel_text_address (kernel/extable.c:79) 
[ 94.605423][ T798] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 94.605726][ T798] ? __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) 
[ 94.606035][ T798] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 94.606447][ T798] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 94.606761][ T798] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 94.607063][ T798] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 94.607379][ T798] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 94.607691][ T798] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 94.607994][ T798] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 94.608302][ T798] ? __create_object (mm/kmemleak.c:771) 
[ 94.608618][ T798] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 94.608928][ T798] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 94.609238][ T798] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 94.609622][ T798] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 94.609932][ T798] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 94.610243][ T798] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 94.610577][ T798] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 94.610888][ T798] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 94.611198][ T798] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 94.611523][ T798] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 94.611828][ T798] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 94.612126][ T798] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 94.612441][ T798] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 94.612748][ T798] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 94.613060][ T798] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 94.613376][ T798] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 94.613687][ T798] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 94.614000][ T798] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 94.614345][ T798] ? 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) 
[ 94.614652][ T798] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 94.614960][ T798] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 94.615260][ T798] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 94.615573][ T798] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 94.615883][ T798] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 94.616188][ T798] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 94.616509][ T798] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 94.616817][ T798] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 94.617115][ T798] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 94.617516][ T798] ___sys_sendmsg (net/socket.c:2670) 
[ 94.617819][ T798] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 94.618127][ T798] ? __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) 
[ 94.618530][ T798] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 94.618840][ T798] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 94.619149][ T798] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 94.619467][ T798] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 94.619779][ T798] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 94.620085][ T798] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 94.620405][ T798] __sys_sendmsg (net/socket.c:2700) 
[ 94.620717][ T798] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 94.621087][ T798] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 94.621411][ T798] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 94.621721][ T798] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 94.622023][ T798] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   94.622426][  T798] RIP: 0033:0x7fade1aa21e7
[ 94.622746][ T798] 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)
[   94.623842][  T798] RSP: 002b:00007ffee5ad22d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   94.624334][  T798] RAX: ffffffffffffffda RBX: 00007ffee5ad2a10 RCX: 00007fade1aa21e7
[   94.624791][  T798] RDX: 0000000000000000 RSI: 00007ffee5ad2340 RDI: 0000000000000005
[   94.625257][  T798] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   94.625713][  T798] R10: 0000000037765910 R11: 0000000000000246 R12: 0000000000000005
[   94.626169][  T798] R13: 00000000686e2898 R14: 0000000000499600 R15: 0000000000000000
| [   94.998888][  T801] ------------[ cut here ]------------
| [ 94.999203][ T801] WARNING: CPU: 1 PID: 801 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) 
| [   94.999816][  T801] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   95.000930][  T801] Tainted: [W]=WARN
[   95.001164][  T801] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 95.001962][ T801] 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) 
[ 95.002279][ T801] 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
[   95.003379][  T801] RSP: 0018:ffffc90001567080 EFLAGS: 00010246
[   95.003774][  T801] RAX: 0000000000000000 RBX: ffff888008dba000 RCX: 0000000000000001
[   95.004230][  T801] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[   95.004719][  T801] RBP: ffffc90001567168 R08: 0000000000000000 R09: 0000000000000000
[   95.005178][  T801] R10: ffffc90001567198 R11: ffffffffab8ceab8 R12: 1ffff920002ace14
[   95.005652][  T801] R13: 00000000000005dc R14: ffffc90001567198 R15: ffff888008dbaf48
[   95.006110][  T801] FS:  00007fdd8d97e800(0000) GS:ffff8880c0419000(0000) knlGS:0000000000000000
[   95.006656][  T801] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   95.007043][  T801] CR2: 000000000043d940 CR3: 000000000ea69003 CR4: 0000000000772ef0
[   95.007516][  T801] PKRU: 55555554
[   95.007752][  T801] Call Trace:
[   95.007982][  T801]  <TASK>
[ 95.008141][ T801] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 95.008472][ T801] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 95.008782][ T801] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 95.009160][ T801] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 95.009483][ T801] netif_set_mtu (net/core/dev.c:9652) 
[ 95.009789][ T801] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 95.010110][ T801] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 95.010513][ T801] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 95.010748][ T801] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 95.011056][ T801] br_add_if (net/bridge/br_if.c:697) 
[ 95.011297][ T801] do_set_master (net/core/rtnetlink.c:2948) 
[ 95.011614][ T801] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 95.011922][ T801] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 95.012234][ T801] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 95.012554][ T801] ? __dev_get_by_name (net/core/dev.c:865) 
[ 95.012869][ T801] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 95.013171][ T801] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 95.013495][ T801] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 95.013809][ T801] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 95.014117][ T801] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 95.014446][ T801] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 95.014766][ T801] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 95.015082][ T801] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 95.015392][ T801] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 95.015704][ T801] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 95.016007][ T801] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 95.016338][ T801] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 95.016650][ T801] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 95.016958][ T801] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 95.017270][ T801] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 95.017587][ T801] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 95.017908][ T801] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 95.018211][ T801] ? 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) 
[ 95.018528][ T801] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 95.018836][ T801] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 95.019145][ T801] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 95.019463][ T801] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 95.019776][ T801] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 95.020082][ T801] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 95.020413][ T801] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 95.020723][ T801] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 95.021024][ T801] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 95.021428][ T801] ___sys_sendmsg (net/socket.c:2670) 
[ 95.021747][ T801] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 95.022051][ T801] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 95.022366][ T801] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 95.022669][ T801] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 95.022978][ T801] ? __handle_mm_fault (mm/memory.c:6212) 
[ 95.023282][ T801] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 95.023600][ T801] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 95.023929][ T801] __sys_sendmsg (net/socket.c:2700) 
[ 95.024233][ T801] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 95.024600][ T801] ? 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) 
[ 95.024913][ T801] ? 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) 
[ 95.025220][ T801] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 95.025544][ T801] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 95.025861][ T801] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   95.026236][  T801] RIP: 0033:0x7fdd8db4b1e7
[ 95.026561][ T801] 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)
[   95.027653][  T801] RSP: 002b:00007fffd5c13a88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   95.028125][  T801] RAX: ffffffffffffffda RBX: 00007fffd5c141c0 RCX: 00007fdd8db4b1e7
[   95.028600][  T801] RDX: 0000000000000000 RSI: 00007fffd5c13af0 RDI: 0000000000000005
[   95.029058][  T801] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   95.029524][  T801] R10: 00007fdd8dbd9ac0 R11: 0000000000000246 R12: 00007fffd5c141f8
[   95.029991][  T801] R13: 00000000686e2899 R14: 0000000000499600 R15: 00007fffd5c13be0
| [   97.223559][  T818] ------------[ cut here ]------------
| [ 97.223886][ T818] WARNING: CPU: 1 PID: 818 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) 
| [   97.224496][  T818] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   97.225579][  T818] Tainted: [W]=WARN
[   97.225808][  T818] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 97.226184][ T818] 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) 
[ 97.226497][ T818] 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
[   97.227568][  T818] RSP: 0018:ffffc90001656ef0 EFLAGS: 00010246
[   97.227951][  T818] RAX: 0000000000000000 RBX: ffff888010d3a000 RCX: 0000000000000001
[   97.228404][  T818] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[   97.228849][  T818] RBP: ffffc90001656fd8 R08: 0000000000000000 R09: 0000000000000000
[   97.229296][  T818] R10: ffffc90001657008 R11: ffffffffaaf8d1e0 R12: 1ffff920002cade2
[   97.229753][  T818] R13: 00000000000005dc R14: ffffc90001657008 R15: ffff888010d3af48
[   97.230198][  T818] FS:  00007f638aa96800(0000) GS:ffff8880c0419000(0000) knlGS:0000000000000000
[   97.230725][  T818] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   97.231101][  T818] CR2: 00000000004e6888 CR3: 000000000b8ef006 CR4: 0000000000772ef0
[   97.231560][  T818] PKRU: 55555554
[   97.231786][  T818] Call Trace:
[   97.232011][  T818]  <TASK>
[ 97.232168][ T818] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 97.232482][ T818] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 97.232797][ T818] netif_set_mtu (net/core/dev.c:9652) 
[ 97.233097][ T818] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 97.233421][ T818] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 97.233650][ T818] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 97.233953][ T818] br_add_if (net/bridge/br_if.c:697) 
[ 97.234197][ T818] do_set_master (net/core/rtnetlink.c:2948) 
[ 97.234520][ T818] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 97.234825][ T818] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 97.235129][ T818] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 97.235524][ T818] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 97.235820][ T818] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 97.236119][ T818] ? __kernel_text_address (kernel/extable.c:79) 
[ 97.236444][ T818] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 97.236745][ T818] ? __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) 
[ 97.237048][ T818] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 97.237432][ T818] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 97.237737][ T818] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 97.238039][ T818] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 97.238352][ T818] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 97.238665][ T818] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 97.238967][ T818] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 97.239261][ T818] ? __create_object (mm/kmemleak.c:771) 
[ 97.239584][ T818] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 97.239882][ T818] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 97.240183][ T818] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 97.240567][ T818] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 97.240884][ T818] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 97.241189][ T818] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 97.241495][ T818] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 97.241801][ T818] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 97.242098][ T818] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 97.242404][ T818] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 97.242706][ T818] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 97.243002][ T818] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 97.243308][ T818] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 97.243691][ T818] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 97.243999][ T818] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 97.244307][ T818] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 97.244626][ T818] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 97.244932][ T818] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 97.245231][ T818] ? 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) 
[ 97.245547][ T818] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 97.245850][ T818] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 97.246150][ T818] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 97.246462][ T818] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 97.246764][ T818] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 97.247065][ T818] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 97.247380][ T818] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 97.247680][ T818] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 97.247987][ T818] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 97.248384][ T818] ___sys_sendmsg (net/socket.c:2670) 
[ 97.248681][ T818] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 97.248996][ T818] ? __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) 
[ 97.249400][ T818] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 97.249718][ T818] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 97.250040][ T818] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 97.250371][ T818] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 97.250685][ T818] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 97.250999][ T818] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 97.251337][ T818] __sys_sendmsg (net/socket.c:2700) 
[ 97.251651][ T818] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 97.252037][ T818] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 97.252377][ T818] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 97.252700][ T818] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 97.253015][ T818] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   97.253634][  T818] RIP: 0033:0x7f638ac631e7
[ 97.253959][ T818] 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)
[   97.255276][  T818] RSP: 002b:00007fff61056928 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   97.255735][  T818] RAX: ffffffffffffffda RBX: 00007fff61057060 RCX: 00007f638ac631e7
[   97.256185][  T818] RDX: 0000000000000000 RSI: 00007fff61056990 RDI: 0000000000000005
[   97.256854][  T818] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[   97.257308][  T818] R10: 000000002d004910 R11: 0000000000000246 R12: 0000000000000005
[   97.257984][  T818] R13: 00000000686e289b R14: 0000000000499600 R15: 0000000000000000
| [   97.640271][  T821] ------------[ cut here ]------------
| [ 97.640961][ T821] WARNING: CPU: 3 PID: 821 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) 
| [   97.641600][  T821] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [   97.642749][  T821] Tainted: [W]=WARN
[   97.642990][  T821] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 97.643399][ T821] 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) 
[ 97.643729][ T821] 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
[   97.644891][  T821] RSP: 0018:ffffc900013a7080 EFLAGS: 00010246
[   97.645293][  T821] RAX: 0000000000000000 RBX: ffff888010d3a000 RCX: 0000000000000001
[   97.645781][  T821] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[   97.646259][  T821] RBP: ffffc900013a7168 R08: 0000000000000000 R09: 0000000000000000
[   97.646748][  T821] R10: ffffc900013a7198 R11: ffffffffab8ceab8 R12: 1ffff92000274e14
[   97.647225][  T821] R13: 00000000000005dc R14: ffffc900013a7198 R15: ffff888010d3af48
[   97.647708][  T821] FS:  00007f99019c2800(0000) GS:ffff8880c0519000(0000) knlGS:0000000000000000
[   97.648263][  T821] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   97.648676][  T821] CR2: 000000000043d940 CR3: 000000000b8eb002 CR4: 0000000000772ef0
[   97.649161][  T821] PKRU: 55555554
[   97.649411][  T821] Call Trace:
[   97.649651][  T821]  <TASK>
[ 97.649817][ T821] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 97.650139][ T821] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 97.650470][ T821] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 97.650867][ T821] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 97.651194][ T821] netif_set_mtu (net/core/dev.c:9652) 
[ 97.651524][ T821] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 97.651851][ T821] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 97.652250][ T821] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 97.652501][ T821] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 97.652825][ T821] br_add_if (net/bridge/br_if.c:697) 
[ 97.653076][ T821] do_set_master (net/core/rtnetlink.c:2948) 
[ 97.653410][ T821] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 97.653738][ T821] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 97.654060][ T821] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 97.654396][ T821] ? __dev_get_by_name (net/core/dev.c:865) 
[ 97.654717][ T821] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 97.655032][ T821] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 97.655363][ T821] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 97.655682][ T821] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 97.656007][ T821] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 97.656355][ T821] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 97.656680][ T821] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 97.657009][ T821] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 97.657340][ T821] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 97.657660][ T821] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 97.657977][ T821] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 97.658295][ T821] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 97.658635][ T821] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 97.658959][ T821] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 97.659278][ T821] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 97.659605][ T821] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 97.659937][ T821] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 97.660251][ T821] ? 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) 
[ 97.660585][ T821] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 97.660907][ T821] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 97.661224][ T821] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 97.661564][ T821] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 97.661889][ T821] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 97.662207][ T821] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 97.662541][ T821] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 97.662861][ T821] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 97.663185][ T821] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 97.663606][ T821] ___sys_sendmsg (net/socket.c:2670) 
[ 97.663925][ T821] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 97.664241][ T821] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 97.664603][ T821] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 97.664917][ T821] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 97.665249][ T821] ? __handle_mm_fault (mm/memory.c:6212) 
[ 97.665581][ T821] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 97.665899][ T821] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 97.666238][ T821] __sys_sendmsg (net/socket.c:2700) 
[ 97.666572][ T821] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 97.666889][ T821] ? 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) 
[ 97.667212][ T821] ? 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) 
[ 97.667552][ T821] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 97.667877][ T821] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 97.668199][ T821] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   97.668608][  T821] RIP: 0033:0x7f9901b8f1e7
[ 97.668939][ T821] 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)
[   97.670087][  T821] RSP: 002b:00007ffe1926c2b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   97.670578][  T821] RAX: ffffffffffffffda RBX: 00007ffe1926c9f0 RCX: 00007f9901b8f1e7
[   97.671057][  T821] RDX: 0000000000000000 RSI: 00007ffe1926c320 RDI: 0000000000000005
[   97.671545][  T821] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[   97.672030][  T821] R10: 00007f9901c1dac0 R11: 0000000000000246 R12: 00007ffe1926ca28
[   97.672522][  T821] R13: 00000000686e289b R14: 0000000000499600 R15: 00007ffe1926c410
| [  125.753817][   T66] ------------[ cut here ]------------
| [ 125.754129][ T66] WARNING: CPU: 0 PID: 66 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) 
| [  125.754677][   T66] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  125.755817][   T66] Tainted: [W]=WARN
[  125.756043][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  125.756415][   T66] Workqueue: netns cleanup_net
[ 125.756731][ T66] 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) 
[ 125.757036][ T66] 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
[  125.758090][   T66] RSP: 0000:ffffc900004775b0 EFLAGS: 00010246
[  125.758481][   T66] RAX: 0000000000000000 RBX: ffff888008dba000 RCX: 0000000000000001
[  125.758929][   T66] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[  125.759379][   T66] RBP: ffffc90000477698 R08: 0000000000000000 R09: 0000000000000000
[  125.759823][   T66] R10: ffffc900004776c8 R11: ffffffffaaf8d1e0 R12: 1ffff9200008eeba
[  125.760266][   T66] R13: 00000000000005dc R14: ffffc900004776c8 R15: ffff888008dbaf48
[  125.760715][   T66] FS:  0000000000000000(0000) GS:ffff8880c0399000(0000) knlGS:0000000000000000
[  125.761225][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  125.761610][   T66] CR2: 00007f3e6a557990 CR3: 000000005d34a005 CR4: 0000000000772ef0
[  125.762049][   T66] PKRU: 55555554
[  125.762267][   T66] Call Trace:
[  125.762495][   T66]  <TASK>
[ 125.762648][ T66] ? __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) 
[ 125.763023][ T66] ? br_del_if (net/bridge/br_if.c:742) 
[ 125.763247][ T66] ? br_device_event (net/bridge/br.c:141) 
[ 125.763549][ T66] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 125.763860][ T66] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 125.764149][ T66] ? cleanup_net (net/core/net_namespace.c:684) 
[ 125.764454][ T66] ? process_one_work (kernel/workqueue.c:3238) 
[ 125.764747][ T66] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 125.765038][ T66] ? kthread (kernel/kthread.c:464) 
[ 125.765260][ T66] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 125.765569][ T66] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 125.765875][ T66] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 125.766185][ T66] netif_set_mtu (net/core/dev.c:9652) 
[ 125.766489][ T66] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 125.766806][ T66] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 125.767031][ T66] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 125.767335][ T66] br_del_if (net/bridge/br_if.c:743) 
[ 125.767558][ T66] br_device_event (net/bridge/br.c:141) 
[ 125.767851][ T66] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 125.768149][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 125.768455][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 125.768826][ T66] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 125.769117][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 125.769487][ T66] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 125.769846][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 125.770209][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 125.770585][ T66] default_device_exit_batch (net/core/dev.c:12673) 
[ 125.770880][ T66] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 125.771251][ T66] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 125.771557][ T66] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 125.771844][ T66] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 125.772141][ T66] cleanup_net (net/core/net_namespace.c:684) 
[ 125.772448][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 125.772743][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 125.773037][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 125.773346][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 125.773683][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 125.773978][ T66] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 125.774277][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 125.774600][ T66] kthread (kernel/kthread.c:464) 
[ 125.774821][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 125.775106][ T66] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 125.775407][ T66] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 125.775703][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 125.775992][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 125.776282][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 125.776583][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 125.776876][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  126.251704][   T66] ------------[ cut here ]------------
| [ 126.252054][ T66] WARNING: CPU: 1 PID: 66 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) 
| [  126.252735][   T66] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  126.253979][   T66] Tainted: [W]=WARN
[  126.254204][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  126.254738][   T66] Workqueue: netns cleanup_net
[ 126.255044][ T66] 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) 
[ 126.255578][ T66] 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
[  126.256657][   T66] RSP: 0018:ffffc900004775b0 EFLAGS: 00010246
[  126.257027][   T66] RAX: 0000000000000000 RBX: ffff888010d3a000 RCX: 0000000000000001
[  126.257471][   T66] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[  126.257904][   T66] RBP: ffffc90000477698 R08: 0000000000000000 R09: 0000000000000000
[  126.258349][   T66] R10: ffffc900004776c8 R11: ffffffffaaf8d1e0 R12: 1ffff9200008eeba
[  126.258784][   T66] R13: 00000000000005dc R14: ffffc900004776c8 R15: ffff888010d3af48
[  126.259218][   T66] FS:  0000000000000000(0000) GS:ffff8880c0419000(0000) knlGS:0000000000000000
[  126.259729][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  126.260093][   T66] CR2: 0000564f49e6f9c8 CR3: 000000005d34a004 CR4: 0000000000772ef0
[  126.260545][   T66] PKRU: 55555554
[  126.260762][   T66] Call Trace:
[  126.260976][   T66]  <TASK>
[ 126.261121][ T66] ? __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) 
[ 126.261491][ T66] ? br_del_if (net/bridge/br_if.c:742) 
[ 126.261712][ T66] ? br_device_event (net/bridge/br.c:141) 
[ 126.261995][ T66] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 126.262292][ T66] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 126.262590][ T66] ? cleanup_net (net/core/net_namespace.c:684) 
[ 126.262878][ T66] ? process_one_work (kernel/workqueue.c:3238) 
[ 126.263163][ T66] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 126.263457][ T66] ? kthread (kernel/kthread.c:464) 
[ 126.263682][ T66] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 126.263971][ T66] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 126.264261][ T66] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 126.264582][ T66] netif_set_mtu (net/core/dev.c:9652) 
[ 126.264871][ T66] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 126.265174][ T66] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 126.265405][ T66] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 126.265702][ T66] br_del_if (net/bridge/br_if.c:743) 
[ 126.265922][ T66] br_device_event (net/bridge/br.c:141) 
[ 126.266209][ T66] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 126.266512][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 126.266813][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 126.267177][ T66] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 126.267473][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 126.267833][ T66] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 126.268188][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 126.268554][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 126.268926][ T66] default_device_exit_batch (net/core/dev.c:12673) 
[ 126.269214][ T66] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 126.269593][ T66] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 126.269885][ T66] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 126.270169][ T66] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 126.270474][ T66] cleanup_net (net/core/net_namespace.c:684) 
[ 126.270763][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 126.271055][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 126.271355][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 126.271652][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 126.271947][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 126.272238][ T66] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 126.272543][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 126.272834][ T66] kthread (kernel/kthread.c:464) 
[ 126.273050][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 126.273346][ T66] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 126.273631][ T66] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 126.273922][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 126.274208][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 126.274514][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 126.274801][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 126.275088][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  137.573105][ T1067] ------------[ cut here ]------------
| [ 137.573501][ T1067] WARNING: CPU: 2 PID: 1067 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) 
| [  137.574118][ T1067] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  137.575267][ T1067] Tainted: [W]=WARN
[  137.575538][ T1067] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 137.575938][ T1067] 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) 
[ 137.576264][ T1067] 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
[  137.577385][ T1067] RSP: 0018:ffffc90001d66ef0 EFLAGS: 00010246
[  137.577780][ T1067] RAX: 0000000000000000 RBX: ffff88800bb82000 RCX: 0000000000000001
[  137.578245][ T1067] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[  137.578726][ T1067] RBP: ffffc90001d66fd8 R08: 0000000000000000 R09: 0000000000000000
[  137.579186][ T1067] R10: ffffc90001d67008 R11: ffffffffaaf8d1e0 R12: 1ffff920003acde2
[  137.579660][ T1067] R13: 00000000000005dc R14: ffffc90001d67008 R15: ffff88800bb82f48
[  137.580125][ T1067] FS:  00007f5db0b0a800(0000) GS:ffff8880c0499000(0000) knlGS:0000000000000000
[  137.580683][ T1067] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  137.581074][ T1067] CR2: 00000000004e6888 CR3: 000000000ce3f006 CR4: 0000000000772ef0
[  137.581576][ T1067] PKRU: 55555554
[  137.581817][ T1067] Call Trace:
[  137.582052][ T1067]  <TASK>
[ 137.582249][ T1067] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 137.582739][ T1067] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 137.583204][ T1067] netif_set_mtu (net/core/dev.c:9652) 
[ 137.583680][ T1067] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 137.584138][ T1067] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 137.584580][ T1067] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 137.585042][ T1067] br_add_if (net/bridge/br_if.c:697) 
[ 137.585334][ T1067] do_set_master (net/core/rtnetlink.c:2948) 
[ 137.585655][ T1067] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 137.585977][ T1067] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 137.586297][ T1067] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 137.586695][ T1067] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 137.587010][ T1067] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 137.587329][ T1067] ? __kernel_text_address (kernel/extable.c:79) 
[ 137.587642][ T1067] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 137.587956][ T1067] ? __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) 
[ 137.588268][ T1067] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 137.588672][ T1067] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 137.588985][ T1067] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 137.589293][ T1067] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 137.589633][ T1067] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 137.589961][ T1067] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 137.590273][ T1067] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 137.590590][ T1067] ? __create_object (mm/kmemleak.c:771) 
[ 137.590913][ T1067] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 137.591234][ T1067] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 137.591573][ T1067] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 137.591961][ T1067] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 137.592278][ T1067] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 137.592606][ T1067] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 137.592914][ T1067] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 137.593230][ T1067] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 137.593572][ T1067] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 137.593885][ T1067] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 137.594194][ T1067] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 137.594526][ T1067] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 137.594838][ T1067] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 137.595149][ T1067] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 137.595473][ T1067] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 137.595796][ T1067] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 137.596118][ T1067] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 137.596451][ T1067] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 137.596766][ T1067] ? 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) 
[ 137.597077][ T1067] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 137.597418][ T1067] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 137.597730][ T1067] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 137.598045][ T1067] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 137.598373][ T1067] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 137.598684][ T1067] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 137.599005][ T1067] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 137.599343][ T1067] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 137.599652][ T1067] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 137.600044][ T1067] ___sys_sendmsg (net/socket.c:2670) 
[ 137.600401][ T1067] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 137.600726][ T1067] ? __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) 
[ 137.601111][ T1067] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 137.601446][ T1067] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 137.601766][ T1067] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 137.602078][ T1067] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 137.602399][ T1067] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 137.602712][ T1067] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 137.603037][ T1067] __sys_sendmsg (net/socket.c:2700) 
[ 137.603357][ T1067] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 137.603745][ T1067] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 137.604067][ T1067] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 137.604397][ T1067] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 137.604715][ T1067] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  137.605094][ T1067] RIP: 0033:0x7f5db0cd71e7
[ 137.605453][ T1067] 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)
[  137.606537][ T1067] RSP: 002b:00007ffca606d3e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  137.606997][ T1067] RAX: ffffffffffffffda RBX: 00007ffca606db20 RCX: 00007f5db0cd71e7
[  137.607475][ T1067] RDX: 0000000000000000 RSI: 00007ffca606d450 RDI: 0000000000000005
[  137.607940][ T1067] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  137.608403][ T1067] R10: 000000000ecc4910 R11: 0000000000000246 R12: 0000000000000005
[  137.608856][ T1067] R13: 00000000686e28c3 R14: 0000000000499600 R15: 0000000000000000
| [  137.990230][ T1070] ------------[ cut here ]------------
| [ 137.990577][ T1070] WARNING: CPU: 3 PID: 1070 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) 
| [  137.991199][ T1070] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  137.993045][ T1070] Tainted: [W]=WARN
[  137.993278][ T1070] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 137.993663][ T1070] 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) 
[ 137.993985][ T1070] 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
[  137.995111][ T1070] RSP: 0018:ffffc90001d97080 EFLAGS: 00010246
[  137.995508][ T1070] RAX: 0000000000000000 RBX: ffff88800bb82000 RCX: 0000000000000001
[  137.995969][ T1070] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[  137.996434][ T1070] RBP: ffffc90001d97168 R08: 0000000000000000 R09: 0000000000000000
[  137.996900][ T1070] R10: ffffc90001d97198 R11: ffffffffaaf8d1e0 R12: 1ffff920003b2e14
[  137.997364][ T1070] R13: 00000000000005dc R14: ffffc90001d97198 R15: ffff88800bb82f48
[  137.997821][ T1070] FS:  00007fd93b265800(0000) GS:ffff8880c0519000(0000) knlGS:0000000000000000
[  137.998371][ T1070] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  137.998771][ T1070] CR2: 000000000043d940 CR3: 000000000ee24001 CR4: 0000000000772ef0
[  137.999227][ T1070] PKRU: 55555554
[  137.999464][ T1070] Call Trace:
[  137.999697][ T1070]  <TASK>
[ 137.999857][ T1070] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 138.000161][ T1070] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 138.000495][ T1070] netif_set_mtu (net/core/dev.c:9652) 
[ 138.000812][ T1070] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 138.001137][ T1070] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 138.001382][ T1070] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 138.001696][ T1070] br_add_if (net/bridge/br_if.c:697) 
[ 138.001939][ T1070] do_set_master (net/core/rtnetlink.c:2948) 
[ 138.002243][ T1070] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 138.002569][ T1070] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 138.002885][ T1070] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 138.003194][ T1070] ? __dev_get_by_name (net/core/dev.c:865) 
[ 138.003515][ T1070] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 138.003823][ T1070] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 138.004132][ T1070] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 138.004454][ T1070] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 138.004763][ T1070] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 138.005081][ T1070] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 138.005417][ T1070] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 138.005758][ T1070] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 138.006077][ T1070] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 138.006420][ T1070] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 138.006737][ T1070] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 138.007060][ T1070] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 138.007394][ T1070] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 138.007703][ T1070] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 138.008008][ T1070] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 138.008334][ T1070] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 138.008649][ T1070] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 138.008955][ T1070] ? 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) 
[ 138.009263][ T1070] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 138.009581][ T1070] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 138.009889][ T1070] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 138.010201][ T1070] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 138.010535][ T1070] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 138.010851][ T1070] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 138.011162][ T1070] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 138.011479][ T1070] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 138.011782][ T1070] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 138.012172][ T1070] ___sys_sendmsg (net/socket.c:2670) 
[ 138.012498][ T1070] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 138.012812][ T1070] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 138.013141][ T1070] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 138.013468][ T1070] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 138.013783][ T1070] ? __handle_mm_fault (mm/memory.c:6212) 
[ 138.014085][ T1070] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 138.014412][ T1070] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 138.014753][ T1070] __sys_sendmsg (net/socket.c:2700) 
[ 138.015058][ T1070] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 138.015372][ T1070] ? 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) 
[ 138.015684][ T1070] ? 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) 
[ 138.015992][ T1070] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 138.016303][ T1070] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 138.016623][ T1070] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  138.017018][ T1070] RIP: 0033:0x7fd93b4321e7
[ 138.017347][ T1070] 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)
[  138.018456][ T1070] RSP: 002b:00007ffed544f0b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  138.018918][ T1070] RAX: ffffffffffffffda RBX: 00007ffed544f7f0 RCX: 00007fd93b4321e7
[  138.019388][ T1070] RDX: 0000000000000000 RSI: 00007ffed544f120 RDI: 0000000000000005
[  138.019847][ T1070] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  138.020301][ T1070] R10: 00007fd93b4c0ac0 R11: 0000000000000246 R12: 00007ffed544f828
[  138.020767][ T1070] R13: 00000000686e28c4 R14: 0000000000499600 R15: 00007ffed544f210
| [  140.047742][ T1087] ------------[ cut here ]------------
| [ 140.048086][ T1087] WARNING: CPU: 2 PID: 1087 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) 
| [  140.050011][ T1087] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  140.051118][ T1087] Tainted: [W]=WARN
[  140.051382][ T1087] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 140.051766][ T1087] 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) 
[ 140.052084][ T1087] 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
[  140.053167][ T1087] RSP: 0018:ffffc90001756ef0 EFLAGS: 00010246
[  140.053563][ T1087] RAX: 0000000000000000 RBX: ffff88800ad32000 RCX: 0000000000000001
[  140.054050][ T1087] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[  140.054537][ T1087] RBP: ffffc90001756fd8 R08: 0000000000000000 R09: 0000000000000000
[  140.054992][ T1087] R10: ffffc90001757008 R11: ffffffffaaf8d1e0 R12: 1ffff920002eade2
[  140.055459][ T1087] R13: 00000000000005dc R14: ffffc90001757008 R15: ffff88800ad32f48
[  140.055913][ T1087] FS:  00007fa4ec092800(0000) GS:ffff8880c0499000(0000) knlGS:0000000000000000
[  140.056464][ T1087] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  140.056853][ T1087] CR2: 00000000004e6888 CR3: 00000000116bf004 CR4: 0000000000772ef0
[  140.057320][ T1087] PKRU: 55555554
[  140.057559][ T1087] Call Trace:
[  140.057792][ T1087]  <TASK>
[ 140.057961][ T1087] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 140.058275][ T1087] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 140.058625][ T1087] netif_set_mtu (net/core/dev.c:9652) 
[ 140.058936][ T1087] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 140.059260][ T1087] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 140.059507][ T1087] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 140.059821][ T1087] br_add_if (net/bridge/br_if.c:697) 
[ 140.060073][ T1087] do_set_master (net/core/rtnetlink.c:2948) 
[ 140.060391][ T1087] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 140.060712][ T1087] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 140.061023][ T1087] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 140.061420][ T1087] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 140.061730][ T1087] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 140.062041][ T1087] ? __kernel_text_address (kernel/extable.c:79) 
[ 140.062359][ T1087] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 140.062674][ T1087] ? __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) 
[ 140.062994][ T1087] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 140.063385][ T1087] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 140.063701][ T1087] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 140.064008][ T1087] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 140.064328][ T1087] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 140.064643][ T1087] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 140.064956][ T1087] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 140.065263][ T1087] ? __create_object (mm/kmemleak.c:771) 
[ 140.065592][ T1087] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 140.065902][ T1087] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 140.066212][ T1087] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 140.066606][ T1087] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 140.066926][ T1087] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 140.067248][ T1087] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 140.067572][ T1087] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 140.067897][ T1087] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 140.068214][ T1087] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 140.068530][ T1087] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 140.068840][ T1087] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 140.069146][ T1087] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 140.069466][ T1087] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 140.069778][ T1087] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 140.070095][ T1087] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 140.070423][ T1087] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 140.070736][ T1087] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 140.071054][ T1087] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 140.071369][ T1087] ? 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) 
[ 140.071683][ T1087] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 140.071996][ T1087] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 140.072303][ T1087] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 140.072634][ T1087] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 140.072945][ T1087] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 140.073258][ T1087] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 140.073582][ T1087] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 140.073901][ T1087] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 140.074211][ T1087] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 140.074627][ T1087] ___sys_sendmsg (net/socket.c:2670) 
[ 140.074945][ T1087] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 140.075255][ T1087] ? __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) 
[ 140.075646][ T1087] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 140.075963][ T1087] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 140.076280][ T1087] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 140.076603][ T1087] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 140.076912][ T1087] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 140.077229][ T1087] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 140.077555][ T1087] __sys_sendmsg (net/socket.c:2700) 
[ 140.077861][ T1087] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 140.078243][ T1087] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 140.078574][ T1087] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 140.078884][ T1087] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 140.079205][ T1087] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  140.079604][ T1087] RIP: 0033:0x7fa4ec25f1e7
[ 140.079926][ T1087] 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)
[  140.081229][ T1087] RSP: 002b:00007fffe9cfd9f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  140.081722][ T1087] RAX: ffffffffffffffda RBX: 00007fffe9cfe130 RCX: 00007fa4ec25f1e7
[  140.082414][ T1087] RDX: 0000000000000000 RSI: 00007fffe9cfda60 RDI: 0000000000000005
[  140.082873][ T1087] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  140.083335][ T1087] R10: 000000000102e910 R11: 0000000000000246 R12: 0000000000000005
[  140.084015][ T1087] R13: 00000000686e28c6 R14: 0000000000499600 R15: 0000000000000000
| [  140.459612][ T1090] ------------[ cut here ]------------
| [ 140.459942][ T1090] WARNING: CPU: 2 PID: 1090 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) 
| [  140.461090][ T1090] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  140.462218][ T1090] Tainted: [W]=WARN
[  140.462490][ T1090] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 140.462886][ T1090] 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) 
[ 140.463218][ T1090] 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
[  140.464350][ T1090] RSP: 0018:ffffc90001e77080 EFLAGS: 00010246
[  140.464756][ T1090] RAX: 0000000000000000 RBX: ffff88800ad32000 RCX: 0000000000000001
[  140.465226][ T1090] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[  140.465706][ T1090] RBP: ffffc90001e77168 R08: 0000000000000000 R09: 0000000000000000
[  140.466202][ T1090] R10: ffffc90001e77198 R11: ffffffffaaf8d1e0 R12: 1ffff920003cee14
[  140.466684][ T1090] R13: 00000000000005dc R14: ffffc90001e77198 R15: ffff88800ad32f48
[  140.467162][ T1090] FS:  00007f3cd1118800(0000) GS:ffff8880c0499000(0000) knlGS:0000000000000000
[  140.467717][ T1090] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  140.468114][ T1090] CR2: 000000000043d940 CR3: 000000000d25c001 CR4: 0000000000772ef0
[  140.468610][ T1090] PKRU: 55555554
[  140.468854][ T1090] Call Trace:
[  140.469095][ T1090]  <TASK>
[ 140.469269][ T1090] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 140.469599][ T1090] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 140.469941][ T1090] netif_set_mtu (net/core/dev.c:9652) 
[ 140.470258][ T1090] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 140.470599][ T1090] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 140.470843][ T1090] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 140.471166][ T1090] br_add_if (net/bridge/br_if.c:697) 
[ 140.471430][ T1090] do_set_master (net/core/rtnetlink.c:2948) 
[ 140.471756][ T1090] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 140.472076][ T1090] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 140.472419][ T1090] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 140.472741][ T1090] ? __dev_get_by_name (net/core/dev.c:865) 
[ 140.473063][ T1090] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 140.473393][ T1090] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 140.473716][ T1090] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 140.474037][ T1090] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 140.474392][ T1090] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 140.474720][ T1090] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 140.475042][ T1090] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 140.475380][ T1090] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 140.475696][ T1090] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 140.476014][ T1090] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 140.476355][ T1090] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 140.476681][ T1090] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 140.477003][ T1090] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 140.477336][ T1090] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 140.477657][ T1090] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 140.477978][ T1090] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 140.478323][ T1090] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 140.478643][ T1090] ? 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) 
[ 140.478966][ T1090] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 140.479288][ T1090] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 140.479613][ T1090] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 140.479935][ T1090] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 140.480258][ T1090] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 140.480599][ T1090] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 140.480926][ T1090] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 140.481251][ T1090] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 140.481573][ T1090] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 140.481978][ T1090] ___sys_sendmsg (net/socket.c:2670) 
[ 140.482293][ T1090] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 140.482628][ T1090] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 140.482950][ T1090] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 140.483266][ T1090] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 140.483607][ T1090] ? __handle_mm_fault (mm/memory.c:6212) 
[ 140.483927][ T1090] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 140.484240][ T1090] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 140.484641][ T1090] __sys_sendmsg (net/socket.c:2700) 
[ 140.484964][ T1090] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 140.485282][ T1090] ? 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) 
[ 140.485631][ T1090] ? 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) 
[ 140.485955][ T1090] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 140.486275][ T1090] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 140.486604][ T1090] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  140.486993][ T1090] RIP: 0033:0x7f3cd12e51e7
[ 140.487330][ T1090] 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)
[  140.488454][ T1090] RSP: 002b:00007ffcdb00d2e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  140.488927][ T1090] RAX: ffffffffffffffda RBX: 00007ffcdb00da20 RCX: 00007f3cd12e51e7
[  140.489405][ T1090] RDX: 0000000000000000 RSI: 00007ffcdb00d350 RDI: 0000000000000005
[  140.489880][ T1090] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  140.490364][ T1090] R10: 00007f3cd1373ac0 R11: 0000000000000246 R12: 00007ffcdb00da58
[  140.490832][ T1090] R13: 00000000686e28c6 R14: 0000000000499600 R15: 00007ffcdb00d440
| [  151.783083][   T66] ------------[ cut here ]------------
| [ 151.783401][ T66] WARNING: CPU: 3 PID: 66 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) 
| [  151.783918][   T66] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  151.785197][   T66] Tainted: [W]=WARN
[  151.785430][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  151.785801][   T66] Workqueue: netns cleanup_net
[ 151.786108][ T66] 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) 
[ 151.786419][ T66] 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
[  151.787484][   T66] RSP: 0018:ffffc900004775b0 EFLAGS: 00010246
[  151.787855][   T66] RAX: 0000000000000000 RBX: ffff88800bb82000 RCX: 0000000000000001
[  151.788291][   T66] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[  151.788745][   T66] RBP: ffffc90000477698 R08: 0000000000000000 R09: 0000000000000000
[  151.789186][   T66] R10: ffffc900004776c8 R11: ffffffffaaf8d1e0 R12: 1ffff9200008eeba
[  151.789623][   T66] R13: 00000000000005dc R14: ffffc900004776c8 R15: ffff88800bb82f48
[  151.790065][   T66] FS:  0000000000000000(0000) GS:ffff8880c0519000(0000) knlGS:0000000000000000
[  151.790591][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  151.790959][   T66] CR2: 00007f3b7536f430 CR3: 000000005d34a001 CR4: 0000000000772ef0
[  151.791411][   T66] PKRU: 55555554
[  151.791635][   T66] Call Trace:
[  151.791858][   T66]  <TASK>
[ 151.792010][ T66] ? __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) 
[ 151.792385][ T66] ? br_del_if (net/bridge/br_if.c:742) 
[ 151.792617][ T66] ? br_device_event (net/bridge/br.c:141) 
[ 151.792910][ T66] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 151.793210][ T66] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 151.793505][ T66] ? cleanup_net (net/core/net_namespace.c:684) 
[ 151.793797][ T66] ? process_one_work (kernel/workqueue.c:3238) 
[ 151.794095][ T66] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 151.794400][ T66] ? kthread (kernel/kthread.c:464) 
[ 151.794620][ T66] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 151.794913][ T66] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 151.795207][ T66] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 151.795517][ T66] netif_set_mtu (net/core/dev.c:9652) 
[ 151.795811][ T66] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 151.796122][ T66] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 151.796352][ T66] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 151.796647][ T66] br_del_if (net/bridge/br_if.c:743) 
[ 151.796869][ T66] br_device_event (net/bridge/br.c:141) 
[ 151.797164][ T66] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 151.797472][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 151.797767][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 151.798136][ T66] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 151.798443][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 151.798806][ T66] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 151.799165][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 151.799534][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 151.799907][ T66] default_device_exit_batch (net/core/dev.c:12673) 
[ 151.800196][ T66] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 151.800576][ T66] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 151.800874][ T66] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 151.801162][ T66] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 151.801471][ T66] cleanup_net (net/core/net_namespace.c:684) 
[ 151.801766][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 151.802058][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 151.802363][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 151.802674][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 151.802972][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 151.803269][ T66] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 151.803579][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 151.803872][ T66] kthread (kernel/kthread.c:464) 
[ 151.804093][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 151.804395][ T66] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 151.804684][ T66] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 151.804981][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 151.805272][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 151.805568][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 151.805859][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 151.806148][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  152.246514][   T66] ------------[ cut here ]------------
| [ 152.246829][ T66] WARNING: CPU: 0 PID: 66 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) 
| [  152.247360][   T66] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  152.248483][   T66] Tainted: [W]=WARN
[  152.248704][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  152.249080][   T66] Workqueue: netns cleanup_net
[ 152.249397][ T66] 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) 
[ 152.249697][ T66] 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
[  152.250748][   T66] RSP: 0018:ffffc900004775b0 EFLAGS: 00010246
[  152.251114][   T66] RAX: 0000000000000000 RBX: ffff88800ad32000 RCX: 0000000000000001
[  152.251552][   T66] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[  152.251987][   T66] RBP: ffffc90000477698 R08: 0000000000000000 R09: 0000000000000000
[  152.252435][   T66] R10: ffffc900004776c8 R11: ffffffffaaf8d1e0 R12: 1ffff9200008eeba
[  152.252870][   T66] R13: 00000000000005dc R14: ffffc900004776c8 R15: ffff88800ad32f48
[  152.253305][   T66] FS:  0000000000000000(0000) GS:ffff8880c0399000(0000) knlGS:0000000000000000
[  152.253819][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  152.254184][   T66] CR2: 000055697bc750b8 CR3: 000000000922e003 CR4: 0000000000772ef0
[  152.254639][   T66] PKRU: 55555554
[  152.254859][   T66] Call Trace:
[  152.255074][   T66]  <TASK>
[ 152.255219][ T66] ? __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) 
[ 152.255587][ T66] ? br_del_if (net/bridge/br_if.c:742) 
[ 152.255809][ T66] ? br_device_event (net/bridge/br.c:141) 
[ 152.256095][ T66] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 152.256398][ T66] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 152.256689][ T66] ? cleanup_net (net/core/net_namespace.c:684) 
[ 152.256975][ T66] ? process_one_work (kernel/workqueue.c:3238) 
[ 152.257262][ T66] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 152.257553][ T66] ? kthread (kernel/kthread.c:464) 
[ 152.257768][ T66] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 152.258057][ T66] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 152.258353][ T66] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 152.258657][ T66] netif_set_mtu (net/core/dev.c:9652) 
[ 152.258949][ T66] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 152.259258][ T66] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 152.259484][ T66] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 152.259778][ T66] br_del_if (net/bridge/br_if.c:743) 
[ 152.260001][ T66] br_device_event (net/bridge/br.c:141) 
[ 152.260288][ T66] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 152.260596][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 152.260894][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 152.261260][ T66] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 152.261554][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 152.261919][ T66] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 152.262280][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 152.262649][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 152.263023][ T66] default_device_exit_batch (net/core/dev.c:12673) 
[ 152.263324][ T66] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 152.263692][ T66] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 152.263991][ T66] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 152.264280][ T66] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 152.264597][ T66] cleanup_net (net/core/net_namespace.c:684) 
[ 152.264888][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 152.265181][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 152.265484][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 152.265783][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 152.266080][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 152.266385][ T66] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 152.266685][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 152.266978][ T66] kthread (kernel/kthread.c:464) 
[ 152.267199][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 152.267502][ T66] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 152.267792][ T66] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 152.268086][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 152.268383][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 152.268678][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 152.268966][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 152.269257][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  163.453678][ T1271] ------------[ cut here ]------------
| [ 163.453987][ T1271] WARNING: CPU: 0 PID: 1271 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) 
| [  163.454595][ T1271] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  163.455680][ T1271] Tainted: [W]=WARN
[  163.455910][ T1271] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 163.456286][ T1271] 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) 
[ 163.456609][ T1271] 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
[  163.457676][ T1271] RSP: 0018:ffffc90002206ef0 EFLAGS: 00010246
[  163.458091][ T1271] RAX: 0000000000000000 RBX: ffff88800ac92000 RCX: 0000000000000001
[  163.458550][ T1271] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[  163.459001][ T1271] RBP: ffffc90002206fd8 R08: 0000000000000000 R09: 0000000000000000
[  163.459454][ T1271] R10: ffffc90002207008 R11: ffffffffaaf8d1e0 R12: 1ffff92000440de2
[  163.459901][ T1271] R13: 00000000000005dc R14: ffffc90002207008 R15: ffff88800ac92f48
[  163.460361][ T1271] FS:  00007f0a27999800(0000) GS:ffff8880c0399000(0000) knlGS:0000000000000000
[  163.460892][ T1271] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  163.461266][ T1271] CR2: 00000000004e6888 CR3: 0000000010c0a004 CR4: 0000000000772ef0
[  163.461862][ T1271] PKRU: 55555554
[  163.462087][ T1271] Call Trace:
[  163.462446][ T1271]  <TASK>
[ 163.462602][ T1271] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 163.462907][ T1271] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 163.463215][ T1271] netif_set_mtu (net/core/dev.c:9652) 
[ 163.463650][ T1271] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 163.463963][ T1271] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 163.464187][ T1271] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 163.464648][ T1271] br_add_if (net/bridge/br_if.c:697) 
[ 163.464883][ T1271] do_set_master (net/core/rtnetlink.c:2948) 
[ 163.465178][ T1271] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 163.465627][ T1271] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 163.465929][ T1271] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 163.466306][ T1271] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 163.466615][ T1271] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 163.466910][ T1271] ? __kernel_text_address (kernel/extable.c:79) 
[ 163.467208][ T1271] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 163.467513][ T1271] ? __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) 
[ 163.467818][ T1271] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 163.468185][ T1271] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 163.468498][ T1271] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 163.468793][ T1271] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 163.469086][ T1271] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 163.469389][ T1271] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 163.469687][ T1271] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 163.469987][ T1271] ? __create_object (mm/kmemleak.c:771) 
[ 163.470285][ T1271] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 163.470592][ T1271] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 163.470890][ T1271] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 163.471255][ T1271] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 163.471564][ T1271] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 163.471865][ T1271] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 163.472161][ T1271] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 163.472484][ T1271] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 163.472785][ T1271] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 163.473077][ T1271] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 163.473382][ T1271] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 163.473677][ T1271] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 163.473976][ T1271] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 163.474276][ T1271] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 163.474598][ T1271] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 163.474901][ T1271] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 163.475197][ T1271] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 163.475512][ T1271] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 163.475806][ T1271] ? 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) 
[ 163.476104][ T1271] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 163.476421][ T1271] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 163.476721][ T1271] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 163.477020][ T1271] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 163.477328][ T1271] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 163.477625][ T1271] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 163.477933][ T1271] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 163.478231][ T1271] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 163.478533][ T1271] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 163.478913][ T1271] ___sys_sendmsg (net/socket.c:2670) 
[ 163.479212][ T1271] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 163.479512][ T1271] ? __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) 
[ 163.479879][ T1271] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 163.480179][ T1271] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 163.480493][ T1271] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 163.480796][ T1271] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 163.481088][ T1271] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 163.481395][ T1271] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 163.481698][ T1271] __sys_sendmsg (net/socket.c:2700) 
[ 163.481989][ T1271] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 163.482362][ T1271] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 163.482670][ T1271] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 163.482966][ T1271] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 163.483261][ T1271] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  163.483637][ T1271] RIP: 0033:0x7f0a27b661e7
[ 163.483942][ T1271] 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)
[  163.485020][ T1271] RSP: 002b:00007fffa0d59498 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  163.485476][ T1271] RAX: ffffffffffffffda RBX: 00007fffa0d59bd0 RCX: 00007f0a27b661e7
[  163.485926][ T1271] RDX: 0000000000000000 RSI: 00007fffa0d59500 RDI: 0000000000000005
[  163.486375][ T1271] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  163.486815][ T1271] R10: 000000002787d910 R11: 0000000000000246 R12: 0000000000000005
[  163.487252][ T1271] R13: 00000000686e28dd R14: 0000000000499600 R15: 0000000000000000
| [  163.901830][ T1274] ------------[ cut here ]------------
| [ 163.902142][ T1274] WARNING: CPU: 3 PID: 1274 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) 
| [  163.902948][ T1274] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  163.904211][ T1274] Tainted: [W]=WARN
[  163.904613][ T1274] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 163.905001][ T1274] 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) 
[ 163.905337][ T1274] 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
[  163.906489][ T1274] RSP: 0018:ffffc90002617080 EFLAGS: 00010246
[  163.906893][ T1274] RAX: 0000000000000000 RBX: ffff88800ac92000 RCX: 0000000000000001
[  163.907390][ T1274] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[  163.907888][ T1274] RBP: ffffc90002617168 R08: 0000000000000000 R09: 0000000000000000
[  163.908371][ T1274] R10: ffffc90002617198 R11: ffffffffab8ceab8 R12: 1ffff920004c2e14
[  163.908843][ T1274] R13: 00000000000005dc R14: ffffc90002617198 R15: ffff88800ac92f48
[  163.909305][ T1274] FS:  00007f895c2f4800(0000) GS:ffff8880c0519000(0000) knlGS:0000000000000000
[  163.909874][ T1274] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  163.910267][ T1274] CR2: 00007f895c54fb78 CR3: 000000001146a004 CR4: 0000000000772ef0
[  163.910742][ T1274] PKRU: 55555554
[  163.910988][ T1274] Call Trace:
[  163.911220][ T1274]  <TASK>
[ 163.911390][ T1274] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 163.911714][ T1274] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 163.912039][ T1274] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 163.912439][ T1274] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 163.912758][ T1274] netif_set_mtu (net/core/dev.c:9652) 
[ 163.913074][ T1274] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 163.913403][ T1274] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 163.913804][ T1274] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 163.914034][ T1274] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 163.914364][ T1274] br_add_if (net/bridge/br_if.c:697) 
[ 163.914610][ T1274] do_set_master (net/core/rtnetlink.c:2948) 
[ 163.914917][ T1274] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 163.915234][ T1274] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 163.915555][ T1274] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 163.915857][ T1274] ? __dev_get_by_name (net/core/dev.c:865) 
[ 163.916168][ T1274] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 163.916489][ T1274] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 163.916827][ T1274] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 163.917136][ T1274] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 163.917485][ T1274] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 163.917806][ T1274] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 163.918131][ T1274] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 163.918471][ T1274] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 163.918801][ T1274] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 163.919133][ T1274] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 163.919461][ T1274] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 163.919788][ T1274] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 163.920114][ T1274] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 163.920469][ T1274] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 163.920794][ T1274] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 163.921107][ T1274] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 163.921435][ T1274] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 163.921758][ T1274] ? 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) 
[ 163.922067][ T1274] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 163.922406][ T1274] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 163.922713][ T1274] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 163.923023][ T1274] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 163.923351][ T1274] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 163.923663][ T1274] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 163.923985][ T1274] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 163.924300][ T1274] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 163.924649][ T1274] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 163.925049][ T1274] ___sys_sendmsg (net/socket.c:2670) 
[ 163.925372][ T1274] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 163.925682][ T1274] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 163.926003][ T1274] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 163.926322][ T1274] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 163.926649][ T1274] ? __handle_mm_fault (mm/memory.c:6212) 
[ 163.926961][ T1274] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 163.927262][ T1274] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 163.927618][ T1274] __sys_sendmsg (net/socket.c:2700) 
[ 163.927945][ T1274] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 163.928262][ T1274] ? 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) 
[ 163.928593][ T1274] ? 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) 
[ 163.928929][ T1274] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 163.929263][ T1274] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 163.929595][ T1274] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  163.929989][ T1274] RIP: 0033:0x7f895c4c11e7
[ 163.930341][ T1274] 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)
[  163.931512][ T1274] RSP: 002b:00007fff6f9d32f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  163.932007][ T1274] RAX: ffffffffffffffda RBX: 00007fff6f9d3a30 RCX: 00007f895c4c11e7
[  163.932506][ T1274] RDX: 0000000000000000 RSI: 00007fff6f9d3360 RDI: 0000000000000005
[  163.932980][ T1274] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  163.933480][ T1274] R10: 00007f895c54fac0 R11: 0000000000000246 R12: 00007fff6f9d3a68
[  163.933955][ T1274] R13: 00000000686e28de R14: 0000000000499600 R15: 00007fff6f9d3450
| [  166.061852][ T1291] ------------[ cut here ]------------
| [ 166.062157][ T1291] WARNING: CPU: 0 PID: 1291 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) 
| [  166.062767][ T1291] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  166.063843][ T1291] Tainted: [W]=WARN
[  166.064067][ T1291] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 166.064495][ T1291] 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) 
[ 166.064801][ T1291] 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
[  166.065869][ T1291] RSP: 0018:ffffc90002706ef0 EFLAGS: 00010246
[  166.066245][ T1291] RAX: 0000000000000000 RBX: ffff88800cefa000 RCX: 0000000000000001
[  166.066714][ T1291] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[  166.067158][ T1291] RBP: ffffc90002706fd8 R08: 0000000000000000 R09: 0000000000000000
[  166.067609][ T1291] R10: ffffc90002707008 R11: ffffffffaaf8d1e0 R12: 1ffff920004e0de2
[  166.068064][ T1291] R13: 00000000000005dc R14: ffffc90002707008 R15: ffff88800cefaf48
[  166.068515][ T1291] FS:  00007fa5c3e83800(0000) GS:ffff8880c0399000(0000) knlGS:0000000000000000
[  166.069128][ T1291] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  166.069512][ T1291] CR2: 00000000004e6888 CR3: 0000000012609006 CR4: 0000000000772ef0
[  166.069961][ T1291] PKRU: 55555554
[  166.070185][ T1291] Call Trace:
[  166.070439][ T1291]  <TASK>
[ 166.070595][ T1291] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 166.070905][ T1291] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 166.071261][ T1291] netif_set_mtu (net/core/dev.c:9652) 
[ 166.071565][ T1291] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 166.071878][ T1291] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 166.072110][ T1291] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 166.072417][ T1291] br_add_if (net/bridge/br_if.c:697) 
[ 166.072655][ T1291] do_set_master (net/core/rtnetlink.c:2948) 
[ 166.072949][ T1291] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 166.073250][ T1291] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 166.073558][ T1291] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 166.073935][ T1291] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 166.074233][ T1291] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 166.074565][ T1291] ? __kernel_text_address (kernel/extable.c:79) 
[ 166.074865][ T1291] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 166.075169][ T1291] ? __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) 
[ 166.075478][ T1291] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 166.075846][ T1291] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 166.076153][ T1291] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 166.076464][ T1291] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 166.076759][ T1291] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 166.077058][ T1291] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 166.077361][ T1291] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 166.077653][ T1291] ? __create_object (mm/kmemleak.c:771) 
[ 166.077948][ T1291] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 166.078243][ T1291] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 166.078559][ T1291] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 166.078933][ T1291] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 166.079232][ T1291] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 166.079545][ T1291] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 166.079842][ T1291] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 166.080145][ T1291] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 166.080458][ T1291] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 166.080752][ T1291] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 166.081048][ T1291] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 166.081355][ T1291] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 166.081651][ T1291] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 166.081951][ T1291] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 166.082249][ T1291] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 166.082560][ T1291] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 166.082863][ T1291] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 166.083168][ T1291] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 166.083475][ T1291] ? 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) 
[ 166.083773][ T1291] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 166.084070][ T1291] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 166.084379][ T1291] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 166.084678][ T1291] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 166.084976][ T1291] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 166.085271][ T1291] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 166.085594][ T1291] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 166.085894][ T1291] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 166.086188][ T1291] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 166.086584][ T1291] ___sys_sendmsg (net/socket.c:2670) 
[ 166.086878][ T1291] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 166.087171][ T1291] ? __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) 
[ 166.087549][ T1291] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 166.087854][ T1291] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 166.088151][ T1291] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 166.088463][ T1291] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 166.088761][ T1291] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 166.089056][ T1291] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 166.089367][ T1291] __sys_sendmsg (net/socket.c:2700) 
[ 166.089663][ T1291] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 166.090034][ T1291] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 166.090361][ T1291] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 166.090663][ T1291] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 166.090961][ T1291] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  166.091333][ T1291] RIP: 0033:0x7fa5c40501e7
[ 166.091638][ T1291] 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)
[  166.092729][ T1291] RSP: 002b:00007fffbf86d078 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  166.093179][ T1291] RAX: ffffffffffffffda RBX: 00007fffbf86d7b0 RCX: 00007fa5c40501e7
[  166.093634][ T1291] RDX: 0000000000000000 RSI: 00007fffbf86d0e0 RDI: 0000000000000005
[  166.094301][ T1291] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  166.094770][ T1291] R10: 0000000016ac0910 R11: 0000000000000246 R12: 0000000000000005
[  166.095210][ T1291] R13: 00000000686e28e0 R14: 0000000000499600 R15: 0000000000000000
| [  166.456152][ T1294] ------------[ cut here ]------------
| [ 166.456472][ T1294] WARNING: CPU: 0 PID: 1294 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) 
| [  166.457079][ T1294] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  166.458253][ T1294] Tainted: [W]=WARN
[  166.459389][ T1294] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 166.459773][ T1294] 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) 
[ 166.460085][ T1294] 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
[  166.461178][ T1294] RSP: 0018:ffffc90002727080 EFLAGS: 00010246
[  166.461577][ T1294] RAX: 0000000000000000 RBX: ffff88800cefa000 RCX: 0000000000000001
[  166.462033][ T1294] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[  166.462506][ T1294] RBP: ffffc90002727168 R08: 0000000000000000 R09: 0000000000000000
[  166.462956][ T1294] R10: ffffc90002727198 R11: ffffffffaaf8d1e0 R12: 1ffff920004e4e14
[  166.463418][ T1294] R13: 00000000000005dc R14: ffffc90002727198 R15: ffff88800cefaf48
[  166.463874][ T1294] FS:  00007f31efb09800(0000) GS:ffff8880c0399000(0000) knlGS:0000000000000000
[  166.464432][ T1294] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  166.464815][ T1294] CR2: 000000000043d940 CR3: 0000000005122002 CR4: 0000000000772ef0
[  166.465268][ T1294] PKRU: 55555554
[  166.465511][ T1294] Call Trace:
[  166.465740][ T1294]  <TASK>
[ 166.465897][ T1294] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 166.466199][ T1294] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 166.466542][ T1294] netif_set_mtu (net/core/dev.c:9652) 
[ 166.466844][ T1294] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 166.467162][ T1294] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 166.467403][ T1294] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 166.467712][ T1294] br_add_if (net/bridge/br_if.c:697) 
[ 166.467951][ T1294] do_set_master (net/core/rtnetlink.c:2948) 
[ 166.468251][ T1294] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 166.468567][ T1294] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 166.468878][ T1294] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 166.469176][ T1294] ? __dev_get_by_name (net/core/dev.c:865) 
[ 166.469494][ T1294] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 166.469804][ T1294] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 166.470111][ T1294] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 166.470415][ T1294] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 166.470726][ T1294] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 166.471043][ T1294] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 166.471357][ T1294] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 166.471671][ T1294] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 166.471970][ T1294] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 166.472272][ T1294] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 166.472583][ T1294] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 166.472886][ T1294] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 166.473199][ T1294] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 166.473527][ T1294] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 166.473837][ T1294] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 166.474140][ T1294] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 166.474469][ T1294] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 166.474773][ T1294] ? 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) 
[ 166.475076][ T1294] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 166.475388][ T1294] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 166.475691][ T1294] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 166.476003][ T1294] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 166.476308][ T1294] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 166.476625][ T1294] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 166.476935][ T1294] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 166.477240][ T1294] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 166.477556][ T1294] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 166.477946][ T1294] ___sys_sendmsg (net/socket.c:2670) 
[ 166.478249][ T1294] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 166.478562][ T1294] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 166.478867][ T1294] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 166.479166][ T1294] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 166.479479][ T1294] ? __handle_mm_fault (mm/memory.c:6212) 
[ 166.479785][ T1294] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 166.480083][ T1294] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 166.480414][ T1294] __sys_sendmsg (net/socket.c:2700) 
[ 166.480721][ T1294] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 166.481021][ T1294] ? 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) 
[ 166.481348][ T1294] ? 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) 
[ 166.481660][ T1294] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 166.481969][ T1294] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 166.482271][ T1294] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  166.482657][ T1294] RIP: 0033:0x7f31efcd61e7
[ 166.482968][ T1294] 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)
[  166.484054][ T1294] RSP: 002b:00007fffd33a8098 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  166.484535][ T1294] RAX: ffffffffffffffda RBX: 00007fffd33a87d0 RCX: 00007f31efcd61e7
[  166.484991][ T1294] RDX: 0000000000000000 RSI: 00007fffd33a8100 RDI: 0000000000000005
[  166.485459][ T1294] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  166.485909][ T1294] R10: 00007f31efd64ac0 R11: 0000000000000246 R12: 00007fffd33a8808
[  166.486370][ T1294] R13: 00000000686e28e0 R14: 0000000000499600 R15: 00007fffd33a81f0
| [  183.344487][   T66] ------------[ cut here ]------------
| [ 183.344785][ T66] WARNING: CPU: 0 PID: 66 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) 
| [  183.345345][   T66] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  183.346476][   T66] Tainted: [W]=WARN
[  183.346699][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  183.347073][   T66] Workqueue: netns cleanup_net
[ 183.347397][ T66] 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) 
[ 183.347701][ T66] 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
[  183.348767][   T66] RSP: 0018:ffffc900004775b0 EFLAGS: 00010246
[  183.349163][   T66] RAX: 0000000000000000 RBX: ffff88800ac92000 RCX: 0000000000000001
[  183.349616][   T66] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[  183.350056][   T66] RBP: ffffc90000477698 R08: 0000000000000000 R09: 0000000000000000
[  183.350502][   T66] R10: ffffc900004776c8 R11: ffffffffaaf8d1e0 R12: 1ffff9200008eeba
[  183.350943][   T66] R13: 00000000000005dc R14: ffffc900004776c8 R15: ffff88800ac92f48
[  183.351387][   T66] FS:  0000000000000000(0000) GS:ffff8880c0399000(0000) knlGS:0000000000000000
[  183.351900][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  183.352277][   T66] CR2: 00007fff26200738 CR3: 000000000e288003 CR4: 0000000000772ef0
[  183.352732][   T66] PKRU: 55555554
[  183.352952][   T66] Call Trace:
[  183.353170][   T66]  <TASK>
[ 183.353327][ T66] ? __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) 
[ 183.353694][ T66] ? br_del_if (net/bridge/br_if.c:742) 
[ 183.353918][ T66] ? br_device_event (net/bridge/br.c:141) 
[ 183.354215][ T66] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 183.354532][ T66] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 183.354827][ T66] ? cleanup_net (net/core/net_namespace.c:684) 
[ 183.355126][ T66] ? process_one_work (kernel/workqueue.c:3238) 
[ 183.355421][ T66] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 183.355712][ T66] ? kthread (kernel/kthread.c:464) 
[ 183.355930][ T66] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 183.356223][ T66] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 183.356526][ T66] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 183.356828][ T66] netif_set_mtu (net/core/dev.c:9652) 
[ 183.357121][ T66] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 183.357443][ T66] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 183.357668][ T66] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 183.357959][ T66] br_del_if (net/bridge/br_if.c:743) 
[ 183.358179][ T66] br_device_event (net/bridge/br.c:141) 
[ 183.358476][ T66] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 183.358773][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 183.359073][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 183.359456][ T66] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 183.359748][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 183.360106][ T66] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 183.360474][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 183.360835][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 183.361211][ T66] default_device_exit_batch (net/core/dev.c:12673) 
[ 183.361511][ T66] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 183.361883][ T66] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 183.362182][ T66] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 183.362479][ T66] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 183.362777][ T66] cleanup_net (net/core/net_namespace.c:684) 
[ 183.363071][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 183.363370][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 183.363667][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 183.363967][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 183.364264][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 183.364577][ T66] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 183.364876][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 183.365165][ T66] kthread (kernel/kthread.c:464) 
[ 183.365393][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 183.365680][ T66] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 183.365964][ T66] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 183.366254][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 183.366549][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 183.366844][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 183.367131][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 183.367424][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  183.822474][   T66] ------------[ cut here ]------------
| [ 183.822784][ T66] WARNING: CPU: 3 PID: 66 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) 
| [  183.823300][   T66] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  183.824443][   T66] Tainted: [W]=WARN
[  183.824665][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  183.825040][   T66] Workqueue: netns cleanup_net
[ 183.825361][ T66] 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) 
[ 183.825662][ T66] 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
[  183.826720][   T66] RSP: 0018:ffffc900004775b0 EFLAGS: 00010246
[  183.827094][   T66] RAX: 0000000000000000 RBX: ffff88800cefa000 RCX: 0000000000000001
[  183.827540][   T66] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[  183.827983][   T66] RBP: ffffc90000477698 R08: 0000000000000000 R09: 0000000000000000
[  183.828428][   T66] R10: ffffc900004776c8 R11: ffffffffaaf8d1e0 R12: 1ffff9200008eeba
[  183.828861][   T66] R13: 00000000000005dc R14: ffffc900004776c8 R15: ffff88800cefaf48
[  183.829300][   T66] FS:  0000000000000000(0000) GS:ffff8880c0519000(0000) knlGS:0000000000000000
[  183.829982][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  183.830516][   T66] CR2: 00007f27df991000 CR3: 000000005d34a006 CR4: 0000000000772ef0
[  183.830958][   T66] PKRU: 55555554
[  183.831182][   T66] Call Trace:
[  183.831669][   T66]  <TASK>
[ 183.831818][ T66] ? __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) 
[ 183.832190][ T66] ? br_del_if (net/bridge/br_if.c:742) 
[ 183.832542][ T66] ? br_device_event (net/bridge/br.c:141) 
[ 183.832831][ T66] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 183.833127][ T66] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 183.833578][ T66] ? cleanup_net (net/core/net_namespace.c:684) 
[ 183.833867][ T66] ? process_one_work (kernel/workqueue.c:3238) 
[ 183.834156][ T66] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 183.834594][ T66] ? kthread (kernel/kthread.c:464) 
[ 183.834817][ T66] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 183.835112][ T66] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 183.835465][ T66] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 183.835769][ T66] netif_set_mtu (net/core/dev.c:9652) 
[ 183.836062][ T66] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 183.836375][ T66] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 183.836600][ T66] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 183.836892][ T66] br_del_if (net/bridge/br_if.c:743) 
[ 183.837121][ T66] br_device_event (net/bridge/br.c:141) 
[ 183.837419][ T66] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 183.837718][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 183.838015][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 183.838388][ T66] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 183.838678][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 183.839034][ T66] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 183.839408][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 183.839770][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 183.840144][ T66] default_device_exit_batch (net/core/dev.c:12673) 
[ 183.840443][ T66] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 183.840812][ T66] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 183.841114][ T66] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 183.841412][ T66] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 183.841712][ T66] cleanup_net (net/core/net_namespace.c:684) 
[ 183.842004][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 183.842296][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 183.842600][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 183.842899][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 183.843199][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 183.843504][ T66] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 183.843802][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 183.844095][ T66] kthread (kernel/kthread.c:464) 
[ 183.844326][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 183.844619][ T66] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 183.844908][ T66] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 183.845204][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 183.845706][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 183.846003][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 183.846319][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 183.846611][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  194.591555][ T1531] ------------[ cut here ]------------
| [ 194.591866][ T1531] WARNING: CPU: 3 PID: 1531 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) 
| [  194.592459][ T1531] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  194.593540][ T1531] Tainted: [W]=WARN
[  194.593769][ T1531] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 194.594139][ T1531] 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) 
[ 194.594476][ T1531] 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
[  194.595554][ T1531] RSP: 0018:ffffc90002ec6ef0 EFLAGS: 00010246
[  194.595928][ T1531] RAX: 0000000000000000 RBX: ffff88800abca000 RCX: 0000000000000001
[  194.596376][ T1531] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[  194.596820][ T1531] RBP: ffffc90002ec6fd8 R08: 0000000000000000 R09: 0000000000000000
[  194.597265][ T1531] R10: ffffc90002ec7008 R11: ffffffffaaf8d1e0 R12: 1ffff920005d8de2
[  194.597723][ T1531] R13: 00000000000005dc R14: ffffc90002ec7008 R15: ffff88800abcaf48
[  194.598165][ T1531] FS:  00007f72cadbc800(0000) GS:ffff8880c0519000(0000) knlGS:0000000000000000
[  194.598691][ T1531] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  194.599067][ T1531] CR2: 00000000004e6888 CR3: 0000000010d07005 CR4: 0000000000772ef0
[  194.599532][ T1531] PKRU: 55555554
[  194.599754][ T1531] Call Trace:
[  194.599972][ T1531]  <TASK>
[ 194.600126][ T1531] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 194.600429][ T1531] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 194.600739][ T1531] netif_set_mtu (net/core/dev.c:9652) 
[ 194.601031][ T1531] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 194.601365][ T1531] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 194.601592][ T1531] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 194.601895][ T1531] br_add_if (net/bridge/br_if.c:697) 
[ 194.602128][ T1531] do_set_master (net/core/rtnetlink.c:2948) 
[ 194.602427][ T1531] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 194.602727][ T1531] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 194.603026][ T1531] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 194.603412][ T1531] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 194.603709][ T1531] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 194.604002][ T1531] ? __kernel_text_address (kernel/extable.c:79) 
[ 194.604300][ T1531] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 194.604612][ T1531] ? __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) 
[ 194.604912][ T1531] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 194.605277][ T1531] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 194.605596][ T1531] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 194.605891][ T1531] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 194.606183][ T1531] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 194.606485][ T1531] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 194.606781][ T1531] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 194.607071][ T1531] ? __create_object (mm/kmemleak.c:771) 
[ 194.607376][ T1531] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 194.607673][ T1531] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 194.607975][ T1531] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 194.608346][ T1531] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 194.608649][ T1531] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 194.608948][ T1531] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 194.609241][ T1531] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 194.609555][ T1531] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 194.609851][ T1531] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 194.610146][ T1531] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 194.610457][ T1531] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 194.610754][ T1531] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 194.611050][ T1531] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 194.611354][ T1531] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 194.611655][ T1531] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 194.611951][ T1531] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 194.612246][ T1531] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 194.612565][ T1531] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 194.612858][ T1531] ? 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) 
[ 194.613154][ T1531] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 194.613471][ T1531] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 194.613763][ T1531] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 194.614063][ T1531] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 194.614373][ T1531] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 194.614674][ T1531] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 194.614977][ T1531] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 194.615273][ T1531] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 194.615572][ T1531] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 194.615950][ T1531] ___sys_sendmsg (net/socket.c:2670) 
[ 194.616242][ T1531] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 194.616541][ T1531] ? __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) 
[ 194.616916][ T1531] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 194.617213][ T1531] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 194.617524][ T1531] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 194.617826][ T1531] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 194.618123][ T1531] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 194.618426][ T1531] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 194.618726][ T1531] __sys_sendmsg (net/socket.c:2700) 
[ 194.619019][ T1531] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 194.619393][ T1531] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 194.619701][ T1531] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 194.619997][ T1531] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 194.620294][ T1531] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  194.620664][ T1531] RIP: 0033:0x7f72caf891e7
[ 194.620968][ T1531] 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)
[  194.622039][ T1531] RSP: 002b:00007ffd04cf5248 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  194.622490][ T1531] RAX: ffffffffffffffda RBX: 00007ffd04cf5980 RCX: 00007f72caf891e7
[  194.622928][ T1531] RDX: 0000000000000000 RSI: 00007ffd04cf52b0 RDI: 0000000000000005
[  194.623382][ T1531] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  194.623822][ T1531] R10: 0000000024ba1910 R11: 0000000000000246 R12: 0000000000000005
[  194.624498][ T1531] R13: 00000000686e28fc R14: 0000000000499600 R15: 0000000000000000
| [  194.987382][ T1534] ------------[ cut here ]------------
| [ 194.987722][ T1534] WARNING: CPU: 1 PID: 1534 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) 
| [  194.988371][ T1534] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  194.989519][ T1534] Tainted: [W]=WARN
[  194.989764][ T1534] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 194.990172][ T1534] 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) 
[ 194.990509][ T1534] 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
[  194.991663][ T1534] RSP: 0018:ffffc90002ee7080 EFLAGS: 00010246
[  194.992068][ T1534] RAX: 0000000000000000 RBX: ffff88800abca000 RCX: 0000000000000001
[  194.992558][ T1534] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[  194.993042][ T1534] RBP: ffffc90002ee7168 R08: 0000000000000000 R09: 0000000000000000
[  194.993530][ T1534] R10: ffffc90002ee7198 R11: ffffffffaaf8d1e0 R12: 1ffff920005dce14
[  194.994010][ T1534] R13: 00000000000005dc R14: ffffc90002ee7198 R15: ffff88800abcaf48
[  194.994516][ T1534] FS:  00007f035ae92800(0000) GS:ffff8880c0419000(0000) knlGS:0000000000000000
[  194.995079][ T1534] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  194.995491][ T1534] CR2: 000000000043d940 CR3: 00000000116c9001 CR4: 0000000000772ef0
[  194.995972][ T1534] PKRU: 55555554
[  194.996215][ T1534] Call Trace:
[  194.996471][ T1534]  <TASK>
[ 194.996640][ T1534] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 194.996960][ T1534] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 194.997298][ T1534] netif_set_mtu (net/core/dev.c:9652) 
[ 194.997650][ T1534] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 194.997988][ T1534] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 194.998233][ T1534] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 194.998567][ T1534] br_add_if (net/bridge/br_if.c:697) 
[ 194.998825][ T1534] do_set_master (net/core/rtnetlink.c:2948) 
[ 194.999147][ T1534] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 194.999478][ T1534] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 194.999800][ T1534] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 195.000115][ T1534] ? __dev_get_by_name (net/core/dev.c:865) 
[ 195.000446][ T1534] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 195.000765][ T1534] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 195.001086][ T1534] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 195.001415][ T1534] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 195.001744][ T1534] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 195.002072][ T1534] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 195.002405][ T1534] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 195.002737][ T1534] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 195.003052][ T1534] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 195.003387][ T1534] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 195.003712][ T1534] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 195.004033][ T1534] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 195.004373][ T1534] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 195.004709][ T1534] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 195.005028][ T1534] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 195.005358][ T1534] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 195.005686][ T1534] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 195.006010][ T1534] ? 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) 
[ 195.006341][ T1534] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 195.006664][ T1534] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 195.006982][ T1534] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 195.007306][ T1534] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 195.007638][ T1534] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 195.007956][ T1534] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 195.008284][ T1534] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 195.008624][ T1534] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 195.008948][ T1534] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 195.009367][ T1534] ___sys_sendmsg (net/socket.c:2670) 
[ 195.009691][ T1534] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 195.010014][ T1534] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 195.010346][ T1534] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 195.010673][ T1534] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 195.010998][ T1534] ? __handle_mm_fault (mm/memory.c:6212) 
[ 195.011330][ T1534] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 195.011650][ T1534] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 195.011991][ T1534] __sys_sendmsg (net/socket.c:2700) 
[ 195.012331][ T1534] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 195.012651][ T1534] ? 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) 
[ 195.012984][ T1534] ? 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) 
[ 195.013306][ T1534] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 195.013641][ T1534] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 195.013963][ T1534] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  195.014374][ T1534] RIP: 0033:0x7f035b05f1e7
[ 195.014716][ T1534] 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)
[  195.015878][ T1534] RSP: 002b:00007ffe9c073968 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  195.016373][ T1534] RAX: ffffffffffffffda RBX: 00007ffe9c0740a0 RCX: 00007f035b05f1e7
[  195.016884][ T1534] RDX: 0000000000000000 RSI: 00007ffe9c0739d0 RDI: 0000000000000005
[  195.017385][ T1534] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  195.017866][ T1534] R10: 00007f035b0edac0 R11: 0000000000000246 R12: 00007ffe9c0740d8
[  195.018364][ T1534] R13: 00000000686e28fd R14: 0000000000499600 R15: 00007ffe9c073ac0
| [  196.984432][ T1551] ------------[ cut here ]------------
| [ 196.984767][ T1551] WARNING: CPU: 2 PID: 1551 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  196.985400][ T1551] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  196.986519][ T1551] Tainted: [W]=WARN
[  196.986758][ T1551] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 196.987138][ T1551] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 196.987479][ T1551] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  196.988555][ T1551] RSP: 0018:ffffc90002f96ef0 EFLAGS: 00010246
[  196.988944][ T1551] RAX: 0000000000000000 RBX: ffff888008b0a000 RCX: 0000000000000001
[  196.989422][ T1551] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[  196.989875][ T1551] RBP: ffffc90002f96fd8 R08: 0000000000000000 R09: 0000000000000000
[  196.990343][ T1551] R10: ffffc90002f97008 R11: ffffffffaaf8d1e0 R12: 1ffff920005f2de2
[  196.990796][ T1551] R13: 00000000000005dc R14: ffffc90002f97008 R15: ffff888008b0af48
[  196.991251][ T1551] FS:  00007f6a60514800(0000) GS:ffff8880c0499000(0000) knlGS:0000000000000000
[  196.991785][ T1551] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  196.992174][ T1551] CR2: 00000000004e6888 CR3: 000000000e317004 CR4: 0000000000772ef0
[  196.992640][ T1551] PKRU: 55555554
[  196.992874][ T1551] Call Trace:
[  196.993107][ T1551]  <TASK>
[ 196.993274][ T1551] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 196.993592][ T1551] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 196.993918][ T1551] netif_set_mtu (net/core/dev.c:9652) 
[ 196.994230][ T1551] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 196.994581][ T1551] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 196.994818][ T1551] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 196.995131][ T1551] br_add_if (net/bridge/br_if.c:697) 
[ 196.995388][ T1551] do_set_master (net/core/rtnetlink.c:2948) 
[ 196.995698][ T1551] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 196.996013][ T1551] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 196.996333][ T1551] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 196.996723][ T1551] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 196.997029][ T1551] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 196.997343][ T1551] ? __kernel_text_address (kernel/extable.c:79) 
[ 196.997654][ T1551] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 196.997986][ T1551] ? __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) 
[ 196.998320][ T1551] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 196.998726][ T1551] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 196.999056][ T1551] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 196.999391][ T1551] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 196.999715][ T1551] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 197.000043][ T1551] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 197.000377][ T1551] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 197.000702][ T1551] ? __create_object (mm/kmemleak.c:771) 
[ 197.001023][ T1551] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 197.001346][ T1551] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 197.001665][ T1551] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 197.002056][ T1551] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 197.002376][ T1551] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 197.002710][ T1551] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 197.003041][ T1551] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 197.003389][ T1551] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 197.003735][ T1551] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 197.004069][ T1551] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 197.004422][ T1551] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 197.004751][ T1551] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 197.005094][ T1551] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 197.005434][ T1551] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 197.005795][ T1551] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 197.006140][ T1551] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 197.006498][ T1551] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 197.006852][ T1551] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 197.007192][ T1551] ? 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) 
[ 197.007561][ T1551] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 197.007905][ T1551] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 197.008233][ T1551] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 197.008597][ T1551] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 197.008948][ T1551] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 197.009296][ T1551] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 197.009651][ T1551] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 197.010008][ T1551] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 197.010350][ T1551] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 197.010781][ T1551] ___sys_sendmsg (net/socket.c:2670) 
[ 197.011124][ T1551] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 197.011474][ T1551] ? __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) 
[ 197.011906][ T1551] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 197.012250][ T1551] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 197.012608][ T1551] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 197.012952][ T1551] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 197.013298][ T1551] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 197.013652][ T1551] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 197.013993][ T1551] __sys_sendmsg (net/socket.c:2700) 
[ 197.014354][ T1551] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 197.014800][ T1551] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 197.015140][ T1551] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 197.015477][ T1551] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 197.015787][ T1551] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  197.016178][ T1551] RIP: 0033:0x7f6a606e11e7
[ 197.016507][ T1551] 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)
[  197.017721][ T1551] RSP: 002b:00007fffc5deded8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  197.018221][ T1551] RAX: ffffffffffffffda RBX: 00007fffc5dee610 RCX: 00007f6a606e11e7
[  197.018722][ T1551] RDX: 0000000000000000 RSI: 00007fffc5dedf40 RDI: 0000000000000005
[  197.019226][ T1551] RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000000
[  197.019717][ T1551] R10: 000000003fb57910 R11: 0000000000000246 R12: 0000000000000005
[  197.020209][ T1551] R13: 00000000686e28ff R14: 0000000000499600 R15: 0000000000000000
| [  197.380500][ T1554] ------------[ cut here ]------------
| [ 197.380824][ T1554] WARNING: CPU: 1 PID: 1554 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) 
| [  197.381448][ T1554] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  197.382624][ T1554] Tainted: [W]=WARN
[  197.382871][ T1554] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 197.383275][ T1554] 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) 
[ 197.383622][ T1554] 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
[  197.384835][ T1554] RSP: 0018:ffffc90002fc7080 EFLAGS: 00010246
[  197.385249][ T1554] RAX: 0000000000000000 RBX: ffff888008b0a000 RCX: 0000000000000001
[  197.385739][ T1554] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[  197.386209][ T1554] RBP: ffffc90002fc7168 R08: 0000000000000000 R09: 0000000000000000
[  197.386707][ T1554] R10: ffffc90002fc7198 R11: ffffffffab8ceab8 R12: 1ffff920005f8e14
[  197.387209][ T1554] R13: 00000000000005dc R14: ffffc90002fc7198 R15: ffff888008b0af48
[  197.387690][ T1554] FS:  00007f06cfd92800(0000) GS:ffff8880c0419000(0000) knlGS:0000000000000000
[  197.388238][ T1554] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  197.388634][ T1554] CR2: 000000000043d940 CR3: 00000000116d7001 CR4: 0000000000772ef0
[  197.389111][ T1554] PKRU: 55555554
[  197.389359][ T1554] Call Trace:
[  197.389616][ T1554]  <TASK>
[ 197.389783][ T1554] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 197.390112][ T1554] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 197.390446][ T1554] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 197.390847][ T1554] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 197.391178][ T1554] netif_set_mtu (net/core/dev.c:9652) 
[ 197.391504][ T1554] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 197.391839][ T1554] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 197.392246][ T1554] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 197.392498][ T1554] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 197.392823][ T1554] br_add_if (net/bridge/br_if.c:697) 
[ 197.393076][ T1554] do_set_master (net/core/rtnetlink.c:2948) 
[ 197.393410][ T1554] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 197.393735][ T1554] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 197.394057][ T1554] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 197.394390][ T1554] ? __dev_get_by_name (net/core/dev.c:865) 
[ 197.394711][ T1554] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 197.395028][ T1554] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 197.395359][ T1554] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 197.395680][ T1554] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 197.396016][ T1554] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 197.396356][ T1554] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 197.396685][ T1554] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 197.397019][ T1554] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 197.397343][ T1554] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 197.397678][ T1554] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 197.398000][ T1554] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 197.398340][ T1554] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 197.398668][ T1554] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 197.398994][ T1554] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 197.399325][ T1554] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 197.399645][ T1554] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 197.399979][ T1554] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 197.400301][ T1554] ? 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) 
[ 197.400635][ T1554] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 197.400964][ T1554] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 197.401280][ T1554] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 197.401635][ T1554] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 197.401963][ T1554] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 197.402284][ T1554] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 197.402620][ T1554] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 197.402949][ T1554] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 197.403269][ T1554] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 197.403685][ T1554] ___sys_sendmsg (net/socket.c:2670) 
[ 197.404010][ T1554] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 197.404340][ T1554] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 197.404674][ T1554] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 197.404996][ T1554] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 197.405340][ T1554] ? __handle_mm_fault (mm/memory.c:6212) 
[ 197.405662][ T1554] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 197.405981][ T1554] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 197.406337][ T1554] __sys_sendmsg (net/socket.c:2700) 
[ 197.406665][ T1554] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 197.406987][ T1554] ? 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) 
[ 197.407326][ T1554] ? 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) 
[ 197.407655][ T1554] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 197.407978][ T1554] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 197.408299][ T1554] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  197.408730][ T1554] RIP: 0033:0x7f06cff5f1e7
[ 197.409061][ T1554] 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)
[  197.410212][ T1554] RSP: 002b:00007fffd06caec8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  197.410724][ T1554] RAX: ffffffffffffffda RBX: 00007fffd06cb600 RCX: 00007f06cff5f1e7
[  197.411202][ T1554] RDX: 0000000000000000 RSI: 00007fffd06caf30 RDI: 0000000000000005
[  197.411691][ T1554] RBP: 0000000000000006 R08: 0000000000000064 R09: 0000000000000000
[  197.412194][ T1554] R10: 00007f06cffedac0 R11: 0000000000000246 R12: 00007fffd06cb638
[  197.412685][ T1554] R13: 00000000686e28ff R14: 0000000000499600 R15: 00007fffd06cb020
| [  213.293002][   T66] ------------[ cut here ]------------
| [ 213.293816][ T66] WARNING: CPU: 2 PID: 66 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  213.294402][   T66] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  213.295625][   T66] Tainted: [W]=WARN
[  213.295865][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  213.296250][   T66] Workqueue: netns cleanup_net
[ 213.296584][ T66] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 213.296900][ T66] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  213.297974][   T66] RSP: 0018:ffffc900004775b0 EFLAGS: 00010246
[  213.298395][   T66] RAX: 0000000000000000 RBX: ffff88800abca000 RCX: 0000000000000001
[  213.298857][   T66] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[  213.299323][   T66] RBP: ffffc90000477698 R08: 0000000000000000 R09: 0000000000000000
[  213.299780][   T66] R10: ffffc900004776c8 R11: ffffffffaaf8d1e0 R12: 1ffff9200008eeba
[  213.300236][   T66] R13: 00000000000005dc R14: ffffc900004776c8 R15: ffff88800abcaf48
[  213.300701][   T66] FS:  0000000000000000(0000) GS:ffff8880c0499000(0000) knlGS:0000000000000000
[  213.301243][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  213.301661][   T66] CR2: 0000564f15ca4dec CR3: 000000000e288004 CR4: 0000000000772ef0
[  213.302146][   T66] PKRU: 55555554
[  213.302403][   T66] Call Trace:
[  213.302651][   T66]  <TASK>
[ 213.302824][ T66] ? __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) 
[ 213.303236][ T66] ? br_del_if (net/bridge/br_if.c:742) 
[ 213.303501][ T66] ? br_device_event (net/bridge/br.c:141) 
[ 213.303824][ T66] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 213.304155][ T66] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 213.304492][ T66] ? cleanup_net (net/core/net_namespace.c:684) 
[ 213.304814][ T66] ? process_one_work (kernel/workqueue.c:3238) 
[ 213.305136][ T66] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 213.305474][ T66] ? kthread (kernel/kthread.c:464) 
[ 213.305720][ T66] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 213.306052][ T66] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 213.306375][ T66] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 213.306692][ T66] netif_set_mtu (net/core/dev.c:9652) 
[ 213.307002][ T66] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 213.307338][ T66] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 213.307577][ T66] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 213.307891][ T66] br_del_if (net/bridge/br_if.c:743) 
[ 213.308156][ T66] br_device_event (net/bridge/br.c:141) 
[ 213.308471][ T66] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 213.308792][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 213.309110][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 213.309498][ T66] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 213.309805][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 213.310183][ T66] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 213.310572][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 213.310947][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 213.311374][ T66] default_device_exit_batch (net/core/dev.c:12673) 
[ 213.311698][ T66] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 213.312105][ T66] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 213.312438][ T66] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 213.312755][ T66] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 213.313089][ T66] cleanup_net (net/core/net_namespace.c:684) 
[ 213.313424][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 213.313750][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 213.314082][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 213.314429][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 213.314763][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 213.315088][ T66] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 213.315643][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 213.315971][ T66] kthread (kernel/kthread.c:464) 
[ 213.316636][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 213.316948][ T66] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 213.317266][ T66] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 213.317587][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 213.317893][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 213.318197][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 213.318514][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 213.318819][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  213.662181][   T66] ------------[ cut here ]------------
| [ 213.662523][ T66] WARNING: CPU: 3 PID: 66 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  213.663068][   T66] Modules linked in: act_gact cls_flower sch_ingress vxlan
| [  213.664259][   T66] Tainted: [W]=WARN
[  213.664505][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  213.664897][   T66] Workqueue: netns cleanup_net
[ 213.665222][ T66] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 213.665538][ T66] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa fd 9b 00       	call   0x9bfe1b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  213.666591][   T66] RSP: 0018:ffffc900004775b0 EFLAGS: 00010246
[  213.666958][   T66] RAX: 0000000000000000 RBX: ffff888008b0a000 RCX: 0000000000000001
[  213.667402][   T66] RDX: 0000000000000000 RSI: ffffffffaa510759 RDI: ffffffffa9c58280
[  213.667836][   T66] RBP: ffffc90000477698 R08: 0000000000000000 R09: 0000000000000000
[  213.668270][   T66] R10: ffffc900004776c8 R11: ffffffffaaf8d1e0 R12: 1ffff9200008eeba
[  213.668714][   T66] R13: 00000000000005dc R14: ffffc900004776c8 R15: ffff888008b0af48
[  213.669150][   T66] FS:  0000000000000000(0000) GS:ffff8880c0519000(0000) knlGS:0000000000000000
[  213.669662][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  213.670029][   T66] CR2: 000055acc44f3098 CR3: 000000005d34a006 CR4: 0000000000772ef0
[  213.670479][   T66] PKRU: 55555554
[  213.670698][   T66] Call Trace:
[  213.670915][   T66]  <TASK>
[ 213.671068][ T66] ? __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) 
[ 213.671463][ T66] ? br_del_if (net/bridge/br_if.c:742) 
[ 213.671697][ T66] ? br_device_event (net/bridge/br.c:141) 
[ 213.672007][ T66] ? notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 213.672328][ T66] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 213.672635][ T66] ? cleanup_net (net/core/net_namespace.c:684) 
[ 213.672940][ T66] ? process_one_work (kernel/workqueue.c:3238) 
[ 213.673244][ T66] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 213.673554][ T66] ? kthread (kernel/kthread.c:464) 
[ 213.673785][ T66] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 213.674090][ T66] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 213.674408][ T66] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 213.674732][ T66] netif_set_mtu (net/core/dev.c:9652) 
[ 213.675033][ T66] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 213.675349][ T66] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 213.675571][ T66] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 213.675866][ T66] br_del_if (net/bridge/br_if.c:743) 
[ 213.676093][ T66] br_device_event (net/bridge/br.c:141) 
[ 213.676400][ T66] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 213.676705][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) 
[ 213.677000][ T66] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 213.677381][ T66] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 213.677672][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 213.678034][ T66] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 213.678396][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 213.678759][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 213.679129][ T66] default_device_exit_batch (net/core/dev.c:12673) 
[ 213.679430][ T66] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 213.679803][ T66] ops_undo_list (net/core/net_namespace.c:204 net/core/net_namespace.c:251) 
[ 213.680104][ T66] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 213.680413][ T66] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 213.680727][ T66] cleanup_net (net/core/net_namespace.c:684) 
[ 213.681020][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 213.681322][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 213.681621][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 213.681927][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 213.682226][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 213.682525][ T66] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 213.682824][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 213.683117][ T66] kthread (kernel/kthread.c:464) 
[ 213.683342][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 213.683629][ T66] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 213.683921][ T66] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 213.684218][ T66] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 213.684528][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 213.684818][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 213.685106][ T66] ? __pfx_kthread (kernel/kthread.c:413) 


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:br_mtu_auto_adjust:br_add_if