======================================
| [   19.614556][  T299] veth1: entered promiscuous mode
| [   19.616875][  T299] ------------[ cut here ]------------
| [ 19.617234][ T299] WARNING: CPU: 2 PID: 299 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) 
| [   19.617905][  T299] Modules linked in: bridge stp llc vrf veth
[   19.619150][  T299] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.619564][ T299] 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) 
[ 19.619981][ T299] 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
[   19.621169][  T299] RSP: 0018:ffffc90000526ef0 EFLAGS: 00010246
[   19.621594][  T299] RAX: 0000000000000000 RBX: ffff88801281a000 RCX: 0000000000000001
[   19.622093][  T299] RDX: 0000000000000000 RSI: ffffffffa7c9b941 RDI: ffffffffa74555e0
[   19.622589][  T299] RBP: ffffc90000526fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.623094][  T299] R10: ffffc90000527010 R11: ffffffffa8aa8918 R12: 1ffff920000a4de2
[   19.623607][  T299] R13: 00000000000005dc R14: ffffc90000527010 R15: ffff88801281af08
[   19.624104][  T299] FS:  00007fd607082800(0000) GS:ffff88808c5b7000(0000) knlGS:0000000000000000
[   19.624672][  T299] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.625099][  T299] CR2: 00000000004e5aa8 CR3: 0000000015129006 CR4: 0000000000772ef0
[   19.625609][  T299] PKRU: 55555554
[   19.625871][  T299] Call Trace:
[   19.626127][  T299]  <TASK>
[ 19.626320][ T299] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.626658][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.627017][ T299] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.627336][ T299] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.627747][ T299] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.628095][ T299] netif_set_mtu (net/core/dev.c:9652) 
[ 19.628436][ T299] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.628782][ T299] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.629262][ T299] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.629535][ T299] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.630026][ T299] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.630413][ T299] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.630755][ T299] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.631106][ T299] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.631532][ T299] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.631883][ T299] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.632215][ T299] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.632557][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.632915][ T299] ? __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) 
[ 19.633259][ T299] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.633682][ T299] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.634040][ T299] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.634376][ T299] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.634718][ T299] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.635068][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.635407][ T299] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.635740][ T299] ? __create_object (mm/kmemleak.c:771) 
[ 19.636092][ T299] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.636429][ T299] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.636765][ T299] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.637443][ T299] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.637794][ T299] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.638143][ T299] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.638706][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.639063][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.639623][ T299] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.639971][ T299] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.640309][ T299] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.640879][ T299] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.641227][ T299] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.642040][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.642389][ T299] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.642732][ T299] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.643082][ T299] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.643436][ T299] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.643777][ T299] ? 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) 
[ 19.644133][ T299] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.644477][ T299] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.644821][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.645161][ T299] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.645498][ T299] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.646068][ T299] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.646412][ T299] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.646755][ T299] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.647097][ T299] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.647525][ T299] ___sys_sendmsg (net/socket.c:2670) 
[ 19.647863][ T299] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.648198][ T299] ? __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) 
[ 19.648606][ T299] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.649183][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.649529][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.649884][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.650215][ T299] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.650539][ T299] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.651118][ T299] __sys_sendmsg (net/socket.c:2700) 
[ 19.651443][ T299] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.651843][ T299] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.652403][ T299] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.652733][ T299] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.653066][ T299] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.653466][  T299] RIP: 0033:0x7fd60724f1e7
[ 19.654050][ T299] 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)
[   19.655409][  T299] RSP: 002b:00007ffc63ec4648 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.655907][  T299] RAX: ffffffffffffffda RBX: 00007ffc63ec4d70 RCX: 00007fd60724f1e7
[   19.656407][  T299] RDX: 0000000000000000 RSI: 00007ffc63ec46b0 RDI: 0000000000000005
[   19.657137][  T299] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.657611][  T299] R10: 0000000038df6910 R11: 0000000000000246 R12: 0000000000000004
[   19.658336][  T299] R13: 00000000686e10ab R14: 0000000000499600 R15: 0000000000000000
| [   19.841979][  T301] ------------[ cut here ]------------
| [ 19.842313][ T301] WARNING: CPU: 0 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) 
| [   19.842960][  T301] Modules linked in: bridge stp llc vrf veth
| [   19.844043][  T301] Tainted: [W]=WARN
[   19.844290][  T301] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.844699][ 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) 
[ 19.845042][ 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
[   19.846205][  T301] RSP: 0018:ffffc90000526ef0 EFLAGS: 00010246
[   19.846674][  T301] RAX: 0000000000000000 RBX: ffff88801281a000 RCX: 0000000000000001
[   19.847342][  T301] RDX: 0000000000000000 RSI: ffffffffa7c9b941 RDI: ffffffffa74555e0
[   19.847853][  T301] RBP: ffffc90000526fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.848332][  T301] R10: ffffc90000527010 R11: ffffffffa8aa8918 R12: 1ffff920000a4de2
[   19.848830][  T301] R13: 00000000000005dc R14: ffffc90000527010 R15: ffff88801281af08
[   19.849310][  T301] FS:  00007f6fc3ff6800(0000) GS:ffff88808c4b7000(0000) knlGS:0000000000000000
[   19.849894][  T301] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.850318][  T301] CR2: 00000000004e5ab0 CR3: 00000000152a8002 CR4: 0000000000772ef0
[   19.850805][  T301] PKRU: 55555554
[   19.851059][  T301] Call Trace:
[   19.851303][  T301]  <TASK>
[ 19.851467][ T301] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.851823][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.852154][ T301] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.852469][ T301] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.852897][ T301] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.853235][ T301] netif_set_mtu (net/core/dev.c:9652) 
[ 19.853555][ T301] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.853921][ T301] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.854392][ T301] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.854634][ T301] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.855092][ T301] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.855459][ T301] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.855800][ T301] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.856147][ T301] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.856548][ T301] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.856904][ T301] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.857223][ T301] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.857541][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.857870][ 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) 
[ 19.858192][ T301] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.858591][ T301] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.858920][ T301] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.859240][ T301] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.859556][ T301] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.859883][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.860207][ T301] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.860522][ T301] ? __create_object (mm/kmemleak.c:771) 
[ 19.860856][ T301] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.861184][ T301] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.861503][ T301] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.861909][ T301] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.862238][ T301] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.862561][ T301] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.862884][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.863221][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.863544][ T301] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.863873][ T301] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.864195][ T301] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.864509][ T301] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.864839][ T301] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.865169][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.865491][ T301] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.865826][ T301] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.866149][ T301] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.866476][ T301] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.866789][ 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) 
[ 19.867121][ T301] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.867616][ T301] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.868018][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.868348][ T301] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.868687][ T301] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.869047][ T301] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.869373][ T301] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.869697][ T301] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.870041][ T301] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.870448][ T301] ___sys_sendmsg (net/socket.c:2670) 
[ 19.870769][ T301] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.871107][ 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) 
[ 19.871503][ T301] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.871868][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.872203][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.872524][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.872861][ 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) 
[ 19.873193][ T301] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.873541][ T301] __sys_sendmsg (net/socket.c:2700) 
[ 19.873889][ T301] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.874292][ T301] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.874621][ T301] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.874980][ T301] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.875304][ T301] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.875706][  T301] RIP: 0033:0x7f6fc41c31e7
[ 19.876080][ 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)
[   19.877309][  T301] RSP: 002b:00007ffdda5057a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.877793][  T301] RAX: ffffffffffffffda RBX: 00007ffdda505ed0 RCX: 00007f6fc41c31e7
[   19.878310][  T301] RDX: 0000000000000000 RSI: 00007ffdda505810 RDI: 0000000000000005
[   19.878792][  T301] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.879279][  T301] R10: 0000000013eff910 R11: 0000000000000246 R12: 0000000000000004
[   19.879764][  T301] R13: 00000000686e10ab R14: 0000000000499600 R15: 0000000000000000
| [  125.436558][  T604] ------------[ cut here ]------------
| [ 125.436899][ T604] WARNING: CPU: 3 PID: 604 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  125.437516][  T604] Modules linked in: act_gact cls_flower sch_ingress bridge stp llc vrf veth
| [  125.439320][  T604] Tainted: [W]=WARN
[  125.439554][  T604] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 125.439947][ T604] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 125.440269][ T604] 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
[  125.441400][  T604] RSP: 0018:ffffc90001126f70 EFLAGS: 00010246
[  125.441786][  T604] RAX: 0000000000000000 RBX: ffff88801281a000 RCX: 0000000000000001
[  125.442256][  T604] RDX: 0000000000000000 RSI: ffffffffa7c9b941 RDI: ffffffffa74555e0
[  125.442715][  T604] RBP: ffffc90001127058 R08: 0000000000000000 R09: 0000000000000000
[  125.443208][  T604] R10: ffffc90001127088 R11: ffffffffa4000130 R12: 1ffff92000224df2
[  125.443730][  T604] R13: 00000000000005dc R14: ffffc90001127088 R15: ffff88801281af08
[  125.444197][  T604] FS:  00007f9e95021800(0000) GS:ffff88808c637000(0000) knlGS:0000000000000000
[  125.444734][  T604] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  125.445125][  T604] CR2: 00000000004e5aa8 CR3: 0000000015118001 CR4: 0000000000772ef0
[  125.445594][  T604] PKRU: 55555554
[  125.445829][  T604] Call Trace:
[  125.446058][  T604]  <TASK>
[ 125.446215][ T604] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 125.446605][ T604] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 125.446969][ T604] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 125.447322][ T604] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 125.447645][ T604] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 125.447964][ T604] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 125.448274][ T604] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 125.448576][ T604] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 125.448893][ T604] ? ___sys_sendmsg (net/socket.c:2670) 
[ 125.449199][ T604] ? __sys_sendmsg (net/socket.c:2700) 
[ 125.449501][ T604] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 125.449817][ T604] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 125.450207][ T604] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 125.450526][ T604] netif_set_mtu (net/core/dev.c:9652) 
[ 125.450843][ T604] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 125.451175][ T604] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 125.451429][ T604] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 125.451863][ T604] br_del_if (net/bridge/br_if.c:743) bridge 
[ 125.452200][ T604] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 125.452513][ T604] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 125.452833][ T604] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 125.453142][ T604] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 125.453547][ T604] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 125.453864][ T604] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 125.454181][ T604] ? __kernel_text_address (kernel/extable.c:79) 
[ 125.454490][ T604] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.454874][ T604] ? __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) 
[ 125.455395][ T604] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 125.456019][ T604] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 125.456508][ T604] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 125.457047][ T604] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 125.457556][ T604] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 125.458088][ T604] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 125.458614][ T604] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 125.459167][ T604] ? __create_object (mm/kmemleak.c:771) 
[ 125.459691][ T604] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 125.460229][ T604] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 125.460764][ T604] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 125.461422][ T604] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 125.461986][ T604] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 125.462507][ T604] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 125.463059][ T604] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.463616][ T604] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 125.464145][ T604] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 125.464672][ T604] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 125.465222][ T604] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 125.465746][ T604] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 125.466294][ T604] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 125.466839][ T604] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.467371][ T604] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 125.467897][ T604] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 125.468427][ T604] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 125.468990][ T604] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 125.469495][ T604] ? 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) 
[ 125.470030][ T604] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 125.470566][ T604] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 125.471110][ T604] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.471644][ T604] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 125.472179][ T604] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 125.472701][ T604] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 125.473239][ T604] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 125.473759][ T604] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 125.474264][ T604] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 125.474913][ T604] ___sys_sendmsg (net/socket.c:2670) 
[ 125.475441][ T604] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 125.475941][ T604] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 125.476611][ T604] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 125.477141][ T604] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 125.477670][ T604] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.478244][ T604] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 125.478800][ T604] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 125.479363][ T604] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 125.479940][ T604] __sys_sendmsg (net/socket.c:2700) 
[ 125.480483][ T604] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 125.481170][ T604] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 125.481725][ T604] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 125.482271][ T604] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 125.482839][ T604] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  125.483534][  T604] RIP: 0033:0x7f9e951ee1e7
[ 125.484124][ T604] 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)
[  125.486056][  T604] RSP: 002b:00007ffc523bda68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  125.486855][  T604] RAX: ffffffffffffffda RBX: 00007ffc523be190 RCX: 00007f9e951ee1e7
[  125.487676][  T604] RDX: 0000000000000000 RSI: 00007ffc523bdad0 RDI: 0000000000000005
[  125.488493][  T604] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[  125.489302][  T604] R10: 00007f9e950ebee8 R11: 0000000000000246 R12: 0000000000000002
[  125.490148][  T604] R13: 00000000686e1115 R14: 0000000000499600 R15: 0000000000000000
| [  125.619972][  T605] ------------[ cut here ]------------
| [ 125.620481][ T605] WARNING: CPU: 0 PID: 605 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  125.621573][  T605] Modules linked in: act_gact cls_flower sch_ingress bridge stp llc vrf veth
| [  125.623720][  T605] Tainted: [W]=WARN
[  125.624161][  T605] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 125.624866][ T605] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 125.625399][ T605] 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
[  125.626797][  T605] RSP: 0018:ffffc90001126ef0 EFLAGS: 00010246
[  125.627213][  T605] RAX: 0000000000000000 RBX: ffff88801281a000 RCX: 0000000000000001
[  125.627685][  T605] RDX: 0000000000000000 RSI: ffffffffa7c9b941 RDI: ffffffffa74555e0
[  125.628159][  T605] RBP: ffffc90001126fe0 R08: 0000000000000000 R09: 0000000000000000
[  125.628646][  T605] R10: ffffc90001127010 R11: ffffffffa8aa8918 R12: 1ffff92000224de2
[  125.629113][  T605] R13: 00000000000005dc R14: ffffc90001127010 R15: ffff88801281af08
[  125.629938][  T605] FS:  00007fa59f3fd800(0000) GS:ffff88808c4b7000(0000) knlGS:0000000000000000
[  125.630906][  T605] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  125.631309][  T605] CR2: 00000000004e5aa8 CR3: 0000000009871002 CR4: 0000000000772ef0
[  125.631773][  T605] PKRU: 55555554
[  125.632012][  T605] Call Trace:
[  125.632283][  T605]  <TASK>
[ 125.632443][ T605] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 125.632750][ T605] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 125.633072][ T605] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 125.633484][ T605] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 125.633877][ T605] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 125.634199][ T605] netif_set_mtu (net/core/dev.c:9652) 
[ 125.634509][ T605] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 125.634852][ T605] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 125.635292][ T605] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 125.635528][ T605] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 125.635957][ T605] br_add_if (net/bridge/br_if.c:697) bridge 
[ 125.636353][ T605] do_set_master (net/core/rtnetlink.c:2948) 
[ 125.636668][ T605] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 125.636996][ T605] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 125.637541][ T605] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 125.637858][ T605] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 125.638163][ T605] ? __kernel_text_address (kernel/extable.c:79) 
[ 125.638473][ T605] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.638780][ T605] ? __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) 
[ 125.639094][ T605] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 125.639483][ T605] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 125.639794][ T605] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 125.640111][ T605] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 125.640450][ T605] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 125.640764][ T605] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 125.641081][ T605] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 125.641386][ T605] ? __create_object (mm/kmemleak.c:771) 
[ 125.641694][ T605] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 125.642014][ T605] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 125.642320][ T605] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 125.642701][ T605] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 125.643022][ T605] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 125.643349][ T605] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 125.643655][ T605] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.643979][ T605] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 125.644318][ T605] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 125.644631][ T605] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 125.644951][ T605] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 125.645253][ T605] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 125.645564][ T605] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 125.645883][ T605] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.646192][ T605] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 125.646496][ T605] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 125.646806][ T605] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 125.647138][ T605] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 125.647442][ T605] ? 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) 
[ 125.647748][ T605] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 125.648062][ T605] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 125.648399][ T605] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.648708][ T605] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 125.649034][ T605] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 125.649340][ T605] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 125.649650][ T605] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 125.649965][ T605] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 125.650268][ T605] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 125.650657][ T605] ___sys_sendmsg (net/socket.c:2670) 
[ 125.650968][ T605] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 125.651282][ T605] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 125.651664][ T605] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 125.651982][ T605] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 125.652323][ T605] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.652633][ T605] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 125.652947][ T605] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 125.653252][ T605] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 125.653586][ T605] __sys_sendmsg (net/socket.c:2700) 
[ 125.653898][ T605] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 125.654277][ T605] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 125.654591][ T605] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 125.654905][ T605] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 125.655213][ T605] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  125.655590][  T605] RIP: 0033:0x7fa59f5ca1e7
[ 125.655917][ T605] 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)
[  125.657050][  T605] RSP: 002b:00007ffc0978b148 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  125.657510][  T605] RAX: ffffffffffffffda RBX: 00007ffc0978b870 RCX: 00007fa59f5ca1e7
[  125.657984][  T605] RDX: 0000000000000000 RSI: 00007ffc0978b1b0 RDI: 0000000000000005
[  125.658440][  T605] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  125.658902][  T605] R10: 0000000036663910 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