======================================
| [   18.661545][  T301] veth1: entered promiscuous mode
| [   18.663961][  T301] ------------[ cut here ]------------
| [ 18.664345][ T301] WARNING: CPU: 2 PID: 301 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) 
| [   18.665021][  T301] Modules linked in: bridge stp llc vrf veth
[   18.666336][  T301] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.666772][ T301] 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) 
[ 18.667126][ T301] 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
[   18.668335][  T301] RSP: 0018:ffffc90000646ef0 EFLAGS: 00010246
[   18.668789][  T301] RAX: 0000000000000000 RBX: ffff888008e32000 RCX: 0000000000000001
[   18.669322][  T301] RDX: 0000000000000000 RSI: ffffffffa6a9b941 RDI: ffffffffa62555e0
[   18.669831][  T301] RBP: ffffc90000646fe0 R08: 0000000000000000 R09: 0000000000000000
[   18.670353][  T301] R10: ffffc90000647010 R11: ffffffffa78a8918 R12: 1ffff920000c8de2
[   18.670871][  T301] R13: 00000000000005dc R14: ffffc90000647010 R15: ffff888008e32f08
[   18.671393][  T301] FS:  00007fa636429800(0000) GS:ffff88808d7b7000(0000) knlGS:0000000000000000
[   18.672005][  T301] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.672446][  T301] CR2: 00000000004e5aa8 CR3: 000000000c202005 CR4: 0000000000772ef0
[   18.672954][  T301] PKRU: 55555554
[   18.673241][  T301] Call Trace:
[   18.673506][  T301]  <TASK>
[ 18.673694][ T301] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.674040][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.674401][ T301] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.674746][ T301] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.675177][ T301] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.675520][ T301] netif_set_mtu (net/core/dev.c:9652) 
[ 18.675869][ T301] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.676235][ T301] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 18.676710][ T301] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.676980][ T301] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 18.677460][ T301] br_add_if (net/bridge/br_if.c:697) bridge 
[ 18.677851][ T301] do_set_master (net/core/rtnetlink.c:2948) 
[ 18.678208][ T301] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 18.678549][ T301] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 18.678971][ T301] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.679358][ T301] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.679705][ T301] ? __kernel_text_address (kernel/extable.c:79) 
[ 18.680070][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.680429][ T301] ? __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) 
[ 18.680779][ T301] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 18.681208][ T301] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.681552][ T301] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.681890][ T301] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 18.682248][ T301] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 18.682593][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.682935][ T301] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.683291][ T301] ? __create_object (mm/kmemleak.c:771) 
[ 18.683635][ T301] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 18.683977][ T301] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 18.684332][ T301] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.684764][ T301] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 18.685110][ T301] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.685466][ T301] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.685807][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.686173][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.686509][ T301] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.686847][ T301] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.687196][ T301] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.687543][ T301] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.687885][ T301] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.688247][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.688598][ T301] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.688960][ T301] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.689357][ T301] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.689713][ T301] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.690056][ T301] ? 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) 
[ 18.690409][ T301] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 18.690752][ T301] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.691104][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.691463][ T301] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.691813][ T301] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.692168][ T301] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.692516][ T301] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.692870][ T301] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.693224][ T301] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.693650][ T301] ___sys_sendmsg (net/socket.c:2670) 
[ 18.693987][ T301] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 18.694355][ T301] ? __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) 
[ 18.694778][ T301] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.695124][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.695484][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.695826][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.696175][ T301] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 18.696513][ T301] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.696863][ T301] __sys_sendmsg (net/socket.c:2700) 
[ 18.697207][ T301] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 18.697627][ T301] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.697983][ T301] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.698344][ T301] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.698682][ T301] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.699100][  T301] RIP: 0033:0x7fa6365f61e7
[ 18.699485][ T301] 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)
[   18.700693][  T301] RSP: 002b:00007ffd86c82888 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.701216][  T301] RAX: ffffffffffffffda RBX: 00007ffd86c82fb0 RCX: 00007fa6365f61e7
[   18.701722][  T301] RDX: 0000000000000000 RSI: 00007ffd86c828f0 RDI: 0000000000000005
[   18.702236][  T301] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   18.703035][  T301] R10: 00000000199ab910 R11: 0000000000000246 R12: 0000000000000004
[   18.703545][  T301] R13: 00000000686e3f63 R14: 0000000000499600 R15: 0000000000000000
| [   18.939225][  T304] ------------[ cut here ]------------
| [ 18.939599][ T304] WARNING: CPU: 2 PID: 304 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) 
| [   18.940273][  T304] Modules linked in: bridge stp llc vrf veth
| [   18.941716][  T304] Tainted: [W]=WARN
[   18.941984][  T304] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.942427][ T304] 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) 
[ 18.942785][ T304] 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
[   18.943982][  T304] RSP: 0018:ffffc90000606ef0 EFLAGS: 00010246
[   18.944435][  T304] RAX: 0000000000000000 RBX: ffff888008e32000 RCX: 0000000000000001
[   18.944938][  T304] RDX: 0000000000000000 RSI: ffffffffa6a9b941 RDI: ffffffffa62555e0
[   18.945455][  T304] RBP: ffffc90000606fe0 R08: 0000000000000000 R09: 0000000000000000
[   18.945964][  T304] R10: ffffc90000607010 R11: ffffffffa78a8918 R12: 1ffff920000c0de2
[   18.946481][  T304] R13: 00000000000005dc R14: ffffc90000607010 R15: ffff888008e32f08
[   18.946996][  T304] FS:  00007f0511a4a800(0000) GS:ffff88808d7b7000(0000) knlGS:0000000000000000
[   18.947626][  T304] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.948056][  T304] CR2: 00000000004e5ab0 CR3: 000000000c1ee003 CR4: 0000000000772ef0
[   18.948573][  T304] PKRU: 55555554
[   18.948829][  T304] Call Trace:
[   18.949102][  T304]  <TASK>
[ 18.949319][ T304] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.949669][ T304] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.950025][ T304] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.950385][ T304] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.950803][ T304] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.951157][ T304] netif_set_mtu (net/core/dev.c:9652) 
[ 18.951499][ T304] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.951855][ T304] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 18.952358][ T304] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.952621][ T304] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 18.953078][ T304] br_add_if (net/bridge/br_if.c:697) bridge 
[ 18.953482][ T304] do_set_master (net/core/rtnetlink.c:2948) 
[ 18.953829][ T304] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 18.954195][ T304] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 18.954623][ T304] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.954972][ T304] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.955333][ T304] ? __kernel_text_address (kernel/extable.c:79) 
[ 18.955681][ T304] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.956025][ T304] ? __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) 
[ 18.956386][ T304] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 18.956814][ T304] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.957175][ T304] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.957516][ T304] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 18.957860][ T304] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 18.958220][ T304] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.958566][ T304] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.958903][ T304] ? __create_object (mm/kmemleak.c:771) 
[ 18.959274][ T304] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 18.959628][ T304] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 18.959968][ T304] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.960403][ T304] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 18.960748][ T304] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.961092][ T304] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.961450][ T304] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.961840][ T304] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.962211][ T304] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.962554][ T304] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.962897][ T304] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.963255][ T304] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.963598][ T304] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.963943][ T304] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.964306][ T304] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.964650][ T304] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.964996][ T304] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.965359][ T304] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.965702][ T304] ? 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) 
[ 18.966046][ T304] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 18.966404][ T304] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.966747][ T304] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.967096][ T304] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.967461][ T304] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.967802][ T304] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.968161][ T304] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.968506][ T304] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.968847][ T304] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.969302][ T304] ___sys_sendmsg (net/socket.c:2670) 
[ 18.969637][ T304] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 18.969982][ T304] ? __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) 
[ 18.970419][ T304] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.970761][ T304] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.971107][ T304] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.971469][ T304] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.971810][ T304] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 18.972165][ T304] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.972522][ T304] __sys_sendmsg (net/socket.c:2700) 
[ 18.972862][ T304] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 18.973295][ T304] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.973648][ T304] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.973993][ T304] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.974348][ T304] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.974768][  T304] RIP: 0033:0x7f0511c171e7
[ 18.975178][ T304] 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)
[   18.976364][  T304] RSP: 002b:00007fffe308b858 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.976875][  T304] RAX: ffffffffffffffda RBX: 00007fffe308bf80 RCX: 00007f0511c171e7
[   18.977399][  T304] RDX: 0000000000000000 RSI: 00007fffe308b8c0 RDI: 0000000000000005
[   18.977903][  T304] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   18.978422][  T304] R10: 0000000017b8c910 R11: 0000000000000246 R12: 0000000000000004
[   18.978924][  T304] R13: 00000000686e3f63 R14: 0000000000499600 R15: 0000000000000000
| [   47.251528][  T625] ------------[ cut here ]------------
| [ 47.252104][ T625] WARNING: CPU: 2 PID: 625 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) 
| [   47.253265][  T625] Modules linked in: act_gact cls_flower sch_ingress bridge stp llc vrf veth
| [   47.255568][  T625] Tainted: [W]=WARN
[   47.255978][  T625] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.256698][ T625] 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) 
[ 47.257318][ T625] 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
[   47.259312][  T625] RSP: 0018:ffffc90001006f70 EFLAGS: 00010246
[   47.260021][  T625] RAX: 0000000000000000 RBX: ffff888008e32000 RCX: 0000000000000001
[   47.260856][  T625] RDX: 0000000000000000 RSI: ffffffffa6a9b941 RDI: ffffffffa62555e0
[   47.261703][  T625] RBP: ffffc90001007058 R08: 0000000000000000 R09: 0000000000000000
[   47.262538][  T625] R10: ffffc90001007088 R11: ffffffffa2e00130 R12: 1ffff92000200df2
[   47.263375][  T625] R13: 00000000000005dc R14: ffffc90001007088 R15: ffff888008e32f08
[   47.264216][  T625] FS:  00007f2bf4a9f800(0000) GS:ffff88808d7b7000(0000) knlGS:0000000000000000
[   47.265221][  T625] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.266169][  T625] CR2: 00000000004e5ab0 CR3: 00000000051e7003 CR4: 0000000000772ef0
[   47.267007][  T625] PKRU: 55555554
[   47.267461][  T625] Call Trace:
[   47.267897][  T625]  <TASK>
[ 47.268212][ T625] ? __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) 
[ 47.268936][ T625] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 47.269626][ T625] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 47.270203][ T625] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 47.270758][ T625] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 47.271314][ T625] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 47.271886][ T625] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 47.272455][ T625] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 47.273036][ T625] ? ___sys_sendmsg (net/socket.c:2670) 
[ 47.273608][ T625] ? __sys_sendmsg (net/socket.c:2700) 
[ 47.274184][ T625] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 47.274763][ T625] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 47.275482][ T625] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 47.276071][ T625] netif_set_mtu (net/core/dev.c:9652) 
[ 47.276659][ T625] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 47.277299][ T625] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 47.277737][ T625] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 47.278525][ T625] br_del_if (net/bridge/br_if.c:743) bridge 
[ 47.279159][ T625] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 47.279741][ T625] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 47.280333][ T625] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 47.280914][ T625] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 47.281631][ T625] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 47.282209][ T625] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 47.282762][ T625] ? __kernel_text_address (kernel/extable.c:79) 
[ 47.283346][ T625] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 47.283900][ T625] ? __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) 
[ 47.284458][ T625] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 47.285152][ T625] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 47.285701][ T625] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 47.286280][ T625] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 47.286827][ T625] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 47.287413][ T625] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 47.287981][ T625] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 47.288552][ T625] ? __create_object (mm/kmemleak.c:771) 
[ 47.289103][ T625] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 47.289689][ T625] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 47.290290][ T625] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 47.290979][ T625] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 47.291569][ T625] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 47.292086][ T625] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 47.292630][ T625] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 47.293213][ T625] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 47.293742][ T625] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 47.294343][ T625] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 47.294900][ T625] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 47.295483][ T625] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 47.296085][ T625] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 47.296678][ T625] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 47.297261][ T625] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 47.297820][ T625] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 47.298300][ T625] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 47.298850][ T625] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 47.299407][ T625] ? 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) 
[ 47.299961][ T625] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 47.300542][ T625] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 47.301095][ T625] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 47.301679][ T625] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 47.302217][ T625] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 47.302761][ T625] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 47.303364][ T625] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 47.303937][ T625] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 47.304493][ T625] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 47.305209][ T625] ___sys_sendmsg (net/socket.c:2670) 
[ 47.305756][ T625] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 47.306316][ T625] ? __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) 
[ 47.307010][ T625] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 47.307608][ T625] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 47.308194][ T625] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 47.308761][ T625] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 47.309349][ T625] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 47.309920][ T625] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 47.310518][ T625] __sys_sendmsg (net/socket.c:2700) 
[ 47.311056][ T625] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 47.311758][ T625] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 47.312333][ T625] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 47.312885][ T625] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 47.313382][ T625] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   47.314064][  T625] RIP: 0033:0x7f2bf4c6c1e7
[ 47.314680][ T625] 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)
[   47.316639][  T625] RSP: 002b:00007ffcb99bf018 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   47.317491][  T625] RAX: ffffffffffffffda RBX: 00007ffcb99bf740 RCX: 00007f2bf4c6c1e7
[   47.318308][  T625] RDX: 0000000000000000 RSI: 00007ffcb99bf080 RDI: 0000000000000005
[   47.319123][  T625] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   47.320046][  T625] R10: 00007f2bf4b69ee8 R11: 0000000000000246 R12: 0000000000000003
[   47.320768][  T625] R13: 00000000686e3f7f R14: 0000000000499600 R15: 0000000000000000
| [   47.554419][  T627] ------------[ cut here ]------------
| [ 47.554768][ T627] WARNING: CPU: 2 PID: 627 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) 
| [   47.555915][  T627] Modules linked in: act_gact cls_flower sch_ingress bridge stp llc vrf veth
| [   47.557166][  T627] Tainted: [W]=WARN
[   47.557409][  T627] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.557803][ T627] 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) 
[ 47.558159][ T627] 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
[   47.559308][  T627] RSP: 0018:ffffc90001026f70 EFLAGS: 00010246
[   47.559712][  T627] RAX: 0000000000000000 RBX: ffff888008e32000 RCX: 0000000000000001
[   47.560195][  T627] RDX: 0000000000000000 RSI: ffffffffa6a9b941 RDI: ffffffffa62555e0
[   47.560661][  T627] RBP: ffffc90001027058 R08: 0000000000000000 R09: 0000000000000000
[   47.561127][  T627] R10: ffffc90001027088 R11: ffffffffa6f79160 R12: 1ffff92000204df2
[   47.561604][  T627] R13: 00000000000005dc R14: ffffc90001027088 R15: ffff888008e32f08
[   47.562074][  T627] FS:  00007ff4b9c07800(0000) GS:ffff88808d7b7000(0000) knlGS:0000000000000000
[   47.562651][  T627] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.563049][  T627] CR2: 00000000004e5aa8 CR3: 000000000bf7a005 CR4: 0000000000772ef0
[   47.563535][  T627] PKRU: 55555554
[   47.563776][  T627] Call Trace:
[   47.564015][  T627]  <TASK>
[ 47.564190][ T627] ? __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) 
[ 47.564586][ T627] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 47.564953][ T627] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 47.565299][ T627] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 47.565618][ T627] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 47.565934][ T627] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 47.566278][ T627] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 47.566602][ T627] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 47.566925][ T627] ? ___sys_sendmsg (net/socket.c:2670) 
[ 47.567252][ T627] ? __sys_sendmsg (net/socket.c:2700) 
[ 47.567577][ T627] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 47.567896][ T627] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 47.568453][ T627] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 47.568778][ T627] netif_set_mtu (net/core/dev.c:9652) 
[ 47.569101][ T627] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 47.569472][ T627] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 47.569718][ T627] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 47.570201][ T627] br_del_if (net/bridge/br_if.c:743) bridge 
[ 47.570563][ T627] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 47.570880][ T627] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 47.571217][ T627] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 47.571536][ T627] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 47.571944][ T627] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 47.572282][ T627] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 47.572602][ T627] ? __kernel_text_address (kernel/extable.c:79) 
[ 47.572922][ T627] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 47.573253][ T627] ? __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) 
[ 47.573572][ T627] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 47.573961][ T627] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 47.574304][ T627] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 47.574630][ T627] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 47.574946][ T627] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 47.575278][ T627] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 47.575598][ T627] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 47.575997][ T627] ? __create_object (mm/kmemleak.c:771) 
[ 47.576328][ T627] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 47.576646][ T627] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 47.576969][ T627] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 47.577371][ T627] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 47.577697][ T627] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 47.578018][ T627] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 47.578354][ T627] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 47.578686][ T627] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 47.579003][ T627] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 47.579340][ T627] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 47.579666][ T627] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 47.579980][ T627] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 47.580308][ T627] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 47.580633][ T627] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 47.580951][ T627] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 47.581275][ T627] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 47.581596][ T627] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 47.581930][ T627] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 47.582264][ T627] ? 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) 
[ 47.582586][ T627] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 47.582906][ T627] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 47.583229][ T627] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 47.583550][ T627] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 47.583869][ T627] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 47.584203][ T627] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 47.584533][ T627] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 47.584853][ T627] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 47.585179][ T627] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 47.585582][ T627] ___sys_sendmsg (net/socket.c:2670) 
[ 47.585895][ T627] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 47.586230][ T627] ? __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) 
[ 47.586723][ T627] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 47.587041][ T627] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 47.587374][ T627] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 47.587694][ T627] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 47.588011][ T627] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 47.588333][ T627] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 47.588662][ T627] __sys_sendmsg (net/socket.c:2700) 
[ 47.588974][ T627] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 47.589395][ T627] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 47.589723][ T627] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 47.590040][ T627] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 47.590381][ T627] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   47.590773][  T627] RIP: 0033:0x7ff4b9dd41e7
[ 47.591101][ T627] 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)
[   47.592211][  T627] RSP: 002b:00007ffdfa0374d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   47.592683][  T627] RAX: ffffffffffffffda RBX: 00007ffdfa037c00 RCX: 00007ff4b9dd41e7
[   47.593161][  T627] RDX: 0000000000000000 RSI: 00007ffdfa037540 RDI: 0000000000000005
[   47.593633][  T627] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   47.594098][  T627] R10: 00007ff4b9cd1ee8 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