======================================
| [   18.868151][  T298] veth1: entered promiscuous mode
| [   18.870370][  T298] ------------[ cut here ]------------
| [ 18.870698][ T298] WARNING: CPU: 0 PID: 298 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) 
| [   18.872083][  T298] Modules linked in: bridge stp llc vrf veth
[   18.873126][  T298] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.873529][ T298] 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) 
[ 18.873855][ T298] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   18.874958][  T298] RSP: 0018:ffffc90000576ef0 EFLAGS: 00010246
[   18.875392][  T298] RAX: 0000000000000000 RBX: ffff88800bf2a000 RCX: 0000000000000001
[   18.875883][  T298] RDX: 0000000000000000 RSI: ffffffffb789b941 RDI: ffffffffb70555e0
[   18.876386][  T298] RBP: ffffc90000576fe0 R08: 0000000000000000 R09: 0000000000000000
[   18.876868][  T298] R10: ffffc90000577010 R11: ffffffffb86a8918 R12: 1ffff920000aede2
[   18.877368][  T298] R13: 00000000000005dc R14: ffffc90000577010 R15: ffff88800bf2af08
[   18.878041][  T298] FS:  00007f6524b88800(0000) GS:ffff88807c8b7000(0000) knlGS:0000000000000000
[   18.878632][  T298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.879048][  T298] CR2: 00000000004e5aa8 CR3: 000000000c006001 CR4: 0000000000772ef0
[   18.879546][  T298] PKRU: 55555554
[   18.879792][  T298] Call Trace:
[   18.880043][  T298]  <TASK>
[ 18.880222][ T298] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.880551][ T298] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.880881][ T298] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.881188][ T298] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.881592][ T298] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.881904][ T298] netif_set_mtu (net/core/dev.c:9652) 
[ 18.882217][ T298] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.882543][ T298] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 18.882981][ T298] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.883217][ T298] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 18.883655][ T298] br_add_if (net/bridge/br_if.c:697) bridge 
[ 18.884014][ T298] do_set_master (net/core/rtnetlink.c:2948) 
[ 18.884348][ T298] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 18.884676][ T298] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 18.885091][ T298] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.885426][ T298] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.885748][ T298] ? __kernel_text_address (kernel/extable.c:79) 
[ 18.886082][ T298] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.886421][ T298] ? __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) 
[ 18.886745][ T298] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 18.887154][ T298] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.887494][ T298] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.887808][ T298] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 18.888143][ T298] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 18.888481][ T298] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.888804][ T298] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.889123][ T298] ? __create_object (mm/kmemleak.c:771) 
[ 18.889461][ T298] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 18.889782][ T298] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 18.890119][ T298] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.890527][ T298] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 18.890865][ T298] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.891193][ T298] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.891522][ T298] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.891845][ T298] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.892172][ T298] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.892499][ T298] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.892824][ T298] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.893148][ T298] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.893486][ T298] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.893813][ T298] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.894147][ T298] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.894488][ T298] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.894810][ T298] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.895147][ T298] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.895478][ T298] ? 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) 
[ 18.895806][ T298] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 18.896130][ T298] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.896471][ T298] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.896798][ T298] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.897131][ T298] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.897464][ T298] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.897797][ T298] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.898152][ T298] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.898485][ T298] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.898895][ T298] ___sys_sendmsg (net/socket.c:2670) 
[ 18.899213][ T298] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 18.899544][ T298] ? __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) 
[ 18.899943][ T298] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.900280][ T298] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.900608][ T298] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.900940][ T298] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.901275][ T298] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 18.901602][ T298] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.901936][ T298] __sys_sendmsg (net/socket.c:2700) 
[ 18.902271][ T298] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 18.902670][ T298] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.903006][ T298] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.903337][ T298] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.903662][ T298] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.904066][  T298] RIP: 0033:0x7f6524d551e7
[ 18.904412][ T298] 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)
[   18.905550][  T298] RSP: 002b:00007fff75897a78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.906046][  T298] RAX: ffffffffffffffda RBX: 00007fff758981a0 RCX: 00007f6524d551e7
[   18.906521][  T298] RDX: 0000000000000000 RSI: 00007fff75897ae0 RDI: 0000000000000005
[   18.906990][  T298] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   18.907467][  T298] R10: 000000003909c910 R11: 0000000000000246 R12: 0000000000000004
[   18.907940][  T298] R13: 00000000686e157a R14: 0000000000499600 R15: 0000000000000000
| [   19.146309][  T302] ------------[ cut here ]------------
| [ 19.146622][ T302] WARNING: CPU: 0 PID: 302 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   19.147231][  T302] Modules linked in: bridge stp llc vrf veth
| [   19.148474][  T302] Tainted: [W]=WARN
[   19.148711][  T302] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.149098][ T302] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 19.149561][ T302] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   19.150790][  T302] RSP: 0018:ffffc900005e6ef0 EFLAGS: 00010246
[   19.151186][  T302] RAX: 0000000000000000 RBX: ffff88800bf2a000 RCX: 0000000000000001
[   19.151770][  T302] RDX: 0000000000000000 RSI: ffffffffb789b941 RDI: ffffffffb70555e0
[   19.152232][  T302] RBP: ffffc900005e6fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.152695][  T302] R10: ffffc900005e7010 R11: ffffffffb86a8918 R12: 1ffff920000bcde2
[   19.153152][  T302] R13: 00000000000005dc R14: ffffc900005e7010 R15: ffff88800bf2af08
[   19.153614][  T302] FS:  00007fee961c3800(0000) GS:ffff88807c8b7000(0000) knlGS:0000000000000000
[   19.154262][  T302] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.154650][  T302] CR2: 00000000004e5ab0 CR3: 000000000be8e003 CR4: 0000000000772ef0
[   19.155112][  T302] PKRU: 55555554
[   19.155352][  T302] Call Trace:
[   19.155604][  T302]  <TASK>
[ 19.155763][ T302] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.156068][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.156390][ T302] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.156696][ T302] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.157076][ T302] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.157394][ T302] netif_set_mtu (net/core/dev.c:9652) 
[ 19.157700][ T302] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.158037][ T302] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.158478][ T302] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.158715][ T302] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.159138][ T302] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.159500][ T302] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.159810][ T302] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.160116][ T302] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.160508][ T302] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.160812][ T302] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.161120][ T302] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.161435][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.161744][ T302] ? __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) 
[ 19.162056][ T302] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.162439][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.162748][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.163049][ T302] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.163364][ T302] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.163669][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.163973][ T302] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.164281][ T302] ? __create_object (mm/kmemleak.c:771) 
[ 19.164585][ T302] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.164895][ T302] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.165198][ T302] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.165582][ T302] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.165902][ T302] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.166213][ T302] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.166525][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.166841][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.167146][ T302] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.167455][ T302] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.167762][ T302] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.168085][ T302] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.168408][ T302] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.168715][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.169030][ T302] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.169346][ T302] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.169651][ T302] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.169974][ T302] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.170304][ T302] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 19.170615][ T302] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.170931][ T302] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.171234][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.171551][ T302] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.171860][ T302] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.172167][ T302] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.172493][ T302] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.172808][ T302] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.173118][ T302] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.173516][ T302] ___sys_sendmsg (net/socket.c:2670) 
[ 19.173818][ T302] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.174123][ T302] ? __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) 
[ 19.174511][ T302] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.174822][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.175135][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.175455][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.175760][ T302] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.176069][ T302] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.176392][ T302] __sys_sendmsg (net/socket.c:2700) 
[ 19.176696][ T302] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.177072][ T302] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.177404][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.177709][ T302] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.178038][ T302] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.178424][  T302] RIP: 0033:0x7fee963901e7
[ 19.178740][ T302] 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)
[   19.179844][  T302] RSP: 002b:00007ffd0c9b3ad8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.180312][  T302] RAX: ffffffffffffffda RBX: 00007ffd0c9b4200 RCX: 00007fee963901e7
[   19.180771][  T302] RDX: 0000000000000000 RSI: 00007ffd0c9b3b40 RDI: 0000000000000005
[   19.181229][  T302] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.181697][  T302] R10: 000000002a39c910 R11: 0000000000000246 R12: 0000000000000004
[   19.182154][  T302] R13: 00000000686e157a R14: 0000000000499600 R15: 0000000000000000
| [   49.312410][  T519] ------------[ cut here ]------------
| [ 49.312730][ T519] WARNING: CPU: 3 PID: 519 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) 
| [   49.313826][  T519] Modules linked in: act_gact cls_flower sch_ingress bridge stp llc vrf veth
| [   49.315008][  T519] Tainted: [W]=WARN
[   49.315240][  T519] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 49.315629][ T519] 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) 
[ 49.315964][ T519] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   49.317075][  T519] RSP: 0018:ffffc90000e86f70 EFLAGS: 00010246
[   49.317483][  T519] RAX: 0000000000000000 RBX: ffff88800bf2a000 RCX: 0000000000000001
[   49.317952][  T519] RDX: 0000000000000000 RSI: ffffffffb789b941 RDI: ffffffffb70555e0
[   49.318432][  T519] RBP: ffffc90000e87058 R08: 0000000000000000 R09: 0000000000000000
[   49.318887][  T519] R10: ffffc90000e87088 R11: ffffffffb3c00130 R12: 1ffff920001d0df2
[   49.319351][  T519] R13: 00000000000005dc R14: ffffc90000e87088 R15: ffff88800bf2af08
[   49.319804][  T519] FS:  00007ffbd8280800(0000) GS:ffff88807ca37000(0000) knlGS:0000000000000000
[   49.320354][  T519] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   49.320738][  T519] CR2: 00000000004e5ab0 CR3: 000000000982c001 CR4: 0000000000772ef0
[   49.321191][  T519] PKRU: 55555554
[   49.321431][  T519] Call Trace:
[   49.321659][  T519]  <TASK>
[ 49.321814][ T519] ? __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) 
[ 49.322195][ T519] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 49.322551][ T519] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 49.322855][ T519] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 49.323157][ T519] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 49.323466][ T519] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 49.323772][ T519] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 49.324074][ T519] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 49.324396][ T519] ? ___sys_sendmsg (net/socket.c:2670) 
[ 49.324697][ T519] ? __sys_sendmsg (net/socket.c:2700) 
[ 49.324997][ T519] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 49.325306][ T519] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 49.325710][ T519] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.326040][ T519] netif_set_mtu (net/core/dev.c:9652) 
[ 49.326360][ T519] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 49.326682][ T519] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 49.326913][ T519] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 49.327360][ T519] br_del_if (net/bridge/br_if.c:743) bridge 
[ 49.327698][ T519] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 49.328020][ T519] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 49.328352][ T519] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 49.328664][ T519] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 49.329045][ T519] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 49.329355][ T519] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 49.329654][ T519] ? __kernel_text_address (kernel/extable.c:79) 
[ 49.329958][ T519] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.330276][ T519] ? __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) 
[ 49.330580][ T519] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 49.330961][ T519] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.331275][ T519] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.331614][ T519] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 49.331915][ T519] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 49.332217][ T519] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.332540][ T519] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 49.332840][ T519] ? __create_object (mm/kmemleak.c:771) 
[ 49.333145][ T519] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 49.333464][ T519] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 49.333766][ T519] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 49.334140][ T519] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 49.334457][ T519] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 49.334766][ T519] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 49.335067][ T519] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.335384][ T519] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.335689][ T519] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 49.335995][ T519] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 49.336318][ T519] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 49.336621][ T519] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 49.336925][ T519] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 49.337231][ T519] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.337549][ T519] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 49.337855][ T519] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 49.338177][ T519] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 49.338501][ T519] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 49.338803][ T519] ? 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) 
[ 49.339108][ T519] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 49.339424][ T519] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 49.339726][ T519] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.340037][ T519] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 49.340366][ T519] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 49.340689][ T519] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 49.340999][ T519] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 49.341329][ T519] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 49.341630][ T519] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 49.342019][ T519] ___sys_sendmsg (net/socket.c:2670) 
[ 49.342328][ T519] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 49.342633][ T519] ? __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) 
[ 49.343011][ T519] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 49.343332][ T519] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.343639][ T519] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.343948][ T519] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.344271][ T519] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 49.344574][ T519] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 49.344889][ T519] __sys_sendmsg (net/socket.c:2700) 
[ 49.345191][ T519] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 49.345592][ T519] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 49.345909][ T519] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.346216][ T519] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 49.346528][ T519] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   49.346902][  T519] RIP: 0033:0x7ffbd844d1e7
[ 49.347215][ T519] 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)
[   49.348327][  T519] RSP: 002b:00007fffc89d1aa8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   49.348789][  T519] RAX: ffffffffffffffda RBX: 00007fffc89d21d0 RCX: 00007ffbd844d1e7
[   49.349281][  T519] RDX: 0000000000000000 RSI: 00007fffc89d1b10 RDI: 0000000000000005
[   49.349751][  T519] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   49.350210][  T519] R10: 00007ffbd834aee8 R11: 0000000000000246 R12: 0000000000000003
[   49.350672][  T519] R13: 00000000686e1599 R14: 0000000000499600 R15: 0000000000000000
| [   49.598743][  T521] ------------[ cut here ]------------
| [ 49.599125][ T521] WARNING: CPU: 2 PID: 521 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) 
| [   49.600880][  T521] Modules linked in: act_gact cls_flower sch_ingress bridge stp llc vrf veth
| [   49.602176][  T521] Tainted: [W]=WARN
[   49.602434][  T521] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 49.602841][ T521] 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) 
[ 49.603183][ T521] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   49.604316][  T521] RSP: 0018:ffffc90000ea6f70 EFLAGS: 00010246
[   49.604726][  T521] RAX: 0000000000000000 RBX: ffff88800bf2a000 RCX: 0000000000000001
[   49.605206][  T521] RDX: 0000000000000000 RSI: ffffffffb789b941 RDI: ffffffffb70555e0
[   49.605698][  T521] RBP: ffffc90000ea7058 R08: 0000000000000000 R09: 0000000000000000
[   49.606176][  T521] R10: ffffc90000ea7088 R11: ffffffffb7d79160 R12: 1ffff920001d4df2
[   49.606660][  T521] R13: 00000000000005dc R14: ffffc90000ea7088 R15: ffff88800bf2af08
[   49.607139][  T521] FS:  00007fc1f194c800(0000) GS:ffff88807c9b7000(0000) knlGS:0000000000000000
[   49.607708][  T521] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   49.608129][  T521] CR2: 00000000004e5aa8 CR3: 000000000cb2c003 CR4: 0000000000772ef0
[   49.608626][  T521] PKRU: 55555554
[   49.608876][  T521] Call Trace:
[   49.609123][  T521]  <TASK>
[ 49.609302][ T521] ? __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) 
[ 49.609709][ T521] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 49.610087][ T521] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 49.610440][ T521] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 49.610770][ T521] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 49.611107][ T521] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 49.611455][ T521] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 49.611783][ T521] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 49.612108][ T521] ? ___sys_sendmsg (net/socket.c:2670) 
[ 49.612455][ T521] ? __sys_sendmsg (net/socket.c:2700) 
[ 49.612777][ T521] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 49.613102][ T521] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 49.613511][ T521] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.613848][ T521] netif_set_mtu (net/core/dev.c:9652) 
[ 49.614172][ T521] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 49.614525][ T521] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 49.614779][ T521] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 49.615227][ T521] br_del_if (net/bridge/br_if.c:743) bridge 
[ 49.615602][ T521] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 49.615928][ T521] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 49.616268][ T521] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 49.616597][ T521] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 49.617021][ T521] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 49.617419][ T521] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 49.617752][ T521] ? __kernel_text_address (kernel/extable.c:79) 
[ 49.618095][ T521] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.618439][ T521] ? __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) 
[ 49.618770][ T521] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 49.619176][ T521] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.619525][ T521] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.619870][ T521] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 49.620203][ T521] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 49.620568][ T521] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.620900][ T521] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 49.621227][ T521] ? __create_object (mm/kmemleak.c:771) 
[ 49.621587][ T521] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 49.621919][ T521] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 49.622245][ T521] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 49.622681][ T521] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 49.623030][ T521] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 49.623385][ T521] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 49.623729][ T521] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.624081][ T521] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.624434][ T521] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 49.624764][ T521] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 49.625101][ T521] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 49.625455][ T521] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 49.625789][ T521] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 49.626122][ T521] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.626460][ T521] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 49.626790][ T521] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 49.627117][ T521] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 49.627468][ T521] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 49.627814][ T521] ? 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) 
[ 49.628175][ T521] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 49.628521][ T521] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 49.628849][ T521] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.629219][ T521] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 49.629577][ T521] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 49.629907][ T521] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 49.630257][ T521] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 49.630592][ T521] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 49.630923][ T521] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 49.631351][ T521] ___sys_sendmsg (net/socket.c:2670) 
[ 49.631680][ T521] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 49.632008][ T521] ? __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) 
[ 49.632438][ T521] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 49.632776][ T521] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.633157][ T521] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.633510][ T521] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.633882][ T521] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 49.634216][ T521] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 49.634574][ T521] __sys_sendmsg (net/socket.c:2700) 
[ 49.634907][ T521] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 49.635344][ T521] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 49.635694][ T521] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.636026][ T521] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 49.636367][ T521] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   49.636790][  T521] RIP: 0033:0x7fc1f1b191e7
[ 49.637141][ T521] 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)
[   49.638361][  T521] RSP: 002b:00007fff5103b7d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   49.638864][  T521] RAX: ffffffffffffffda RBX: 00007fff5103bf00 RCX: 00007fc1f1b191e7
[   49.639369][  T521] RDX: 0000000000000000 RSI: 00007fff5103b840 RDI: 0000000000000005
[   49.639872][  T521] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   49.640385][  T521] R10: 00007fc1f1a16ee8 R11: 0000000000000246 R12: 0000000000000003


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