======================================
| [   18.053690][  T299] veth1: entered promiscuous mode
| [   18.057951][  T299] ------------[ cut here ]------------
| [ 18.058313][ T299] WARNING: CPU: 1 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) 
| [   18.058923][  T299] Modules linked in: bridge stp llc vrf veth
[   18.060019][  T299] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.060429][ 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) 
[ 18.060755][ T299] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   18.061875][  T299] RSP: 0018:ffffc90000566ef0 EFLAGS: 00010246
[   18.062427][  T299] RAX: 0000000000000000 RBX: ffff888005162000 RCX: 0000000000000001
[   18.062892][  T299] RDX: 0000000000000000 RSI: ffffffff97c9b939 RDI: ffffffff974555e0
[   18.063501][  T299] RBP: ffffc90000566fe0 R08: 0000000000000000 R09: 0000000000000000
[   18.063969][  T299] R10: ffffc90000567010 R11: ffffffff98aa8918 R12: 1ffff920000acde2
[   18.064581][  T299] R13: 00000000000005dc R14: ffffc90000567010 R15: ffff888005162f08
[   18.065041][  T299] FS:  00007fa478527800(0000) GS:ffff88809c537000(0000) knlGS:0000000000000000
[   18.065736][  T299] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.066283][  T299] CR2: 00000000004e5aa8 CR3: 000000000ac1b005 CR4: 0000000000772ef0
[   18.066749][  T299] PKRU: 55555554
[   18.066983][  T299] Call Trace:
[   18.067382][  T299]  <TASK>
[ 18.067546][ T299] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.067860][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.068318][ T299] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.068629][ T299] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.069008][ T299] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.069519][ T299] netif_set_mtu (net/core/dev.c:9652) 
[ 18.069845][ T299] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.070338][ T299] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 18.070765][ T299] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.070998][ T299] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 18.071584][ T299] br_add_if (net/bridge/br_if.c:697) bridge 
[ 18.071939][ T299] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 18.072414][ T299] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 18.072726][ T299] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 18.073156][ T299] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.073465][ T299] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.073780][ T299] ? __kernel_text_address (kernel/extable.c:79) 
[ 18.074086][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.074405][ 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) 
[ 18.074714][ T299] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 18.075089][ T299] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.075609][ T299] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.076020][ T299] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 18.076347][ T299] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 18.076653][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.076957][ T299] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.077280][ T299] ? __create_object (mm/kmemleak.c:771) 
[ 18.077587][ T299] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 18.077894][ T299] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 18.078206][ T299] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.078607][ T299] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 18.079006][ T299] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.079328][ T299] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.079630][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.079961][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.080283][ T299] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.080586][ T299] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.080896][ T299] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.081218][ T299] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.081565][ T299] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.081871][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.082197][ T299] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.082535][ T299] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.082841][ T299] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.083168][ T299] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.083473][ 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) 
[ 18.083784][ T299] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 18.084104][ T299] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.084406][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.084716][ T299] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.085023][ T299] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.085352][ T299] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.085670][ T299] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.085980][ T299] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.086293][ T299] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.086706][ T299] ___sys_sendmsg (net/socket.c:2670) 
[ 18.087007][ T299] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 18.087331][ 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) 
[ 18.087712][ T299] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.088028][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.088363][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.088701][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.089025][ 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) 
[ 18.089368][ T299] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.089707][ T299] __sys_sendmsg (net/socket.c:2700) 
[ 18.090040][ T299] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 18.090446][ T299] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.090780][ T299] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.091110][ T299] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.091432][ T299] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.091834][  T299] RIP: 0033:0x7fa4786f41e7
[ 18.092179][ 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)
[   18.093335][  T299] RSP: 002b:00007ffc06cf0b48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.093806][  T299] RAX: ffffffffffffffda RBX: 00007ffc06cf1270 RCX: 00007fa4786f41e7
[   18.094275][  T299] RDX: 0000000000000000 RSI: 00007ffc06cf0bb0 RDI: 0000000000000005
[   18.094856][  T299] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   18.095333][  T299] R10: 00000000352b0910 R11: 0000000000000246 R12: 0000000000000004
[   18.095792][  T299] R13: 00000000686e6fd2 R14: 0000000000499600 R15: 0000000000000000
| [   18.234699][  T301] ------------[ cut here ]------------
| [ 18.235008][ T301] WARNING: CPU: 3 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) 
| [   18.235627][  T301] Modules linked in: bridge stp llc vrf veth
| [   18.236855][  T301] Tainted: [W]=WARN
[   18.237099][  T301] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.237482][ 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) 
[ 18.237803][ T301] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   18.238901][  T301] RSP: 0018:ffffc900005a6ef0 EFLAGS: 00010246
[   18.239296][  T301] RAX: 0000000000000000 RBX: ffff888005162000 RCX: 0000000000000001
[   18.239772][  T301] RDX: 0000000000000000 RSI: ffffffff97c9b939 RDI: ffffffff974555e0
[   18.240239][  T301] RBP: ffffc900005a6fe0 R08: 0000000000000000 R09: 0000000000000000
[   18.240700][  T301] R10: ffffc900005a7010 R11: ffffffff98aa8918 R12: 1ffff920000b4de2
[   18.241167][  T301] R13: 00000000000005dc R14: ffffc900005a7010 R15: ffff888005162f08
[   18.241628][  T301] FS:  00007f11a6b07800(0000) GS:ffff88809c637000(0000) knlGS:0000000000000000
[   18.242171][  T301] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.242558][  T301] CR2: 00000000004e5ab0 CR3: 0000000004f70005 CR4: 0000000000772ef0
[   18.243018][  T301] PKRU: 55555554
[   18.243257][  T301] Call Trace:
[   18.243485][  T301]  <TASK>
[ 18.243645][ T301] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.243956][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.244278][ T301] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.244586][ T301] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.244971][ T301] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.245288][ T301] netif_set_mtu (net/core/dev.c:9652) 
[ 18.245596][ T301] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.245925][ T301] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 18.246390][ T301] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.246627][ T301] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 18.247073][ T301] br_add_if (net/bridge/br_if.c:697) bridge 
[ 18.247444][ T301] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 18.247762][ T301] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 18.248077][ T301] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 18.248486][ T301] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.248800][ T301] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.249115][ T301] ? __kernel_text_address (kernel/extable.c:79) 
[ 18.249428][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.249858][ 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) 
[ 18.250450][ T301] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 18.250855][ T301] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.251187][ T301] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.251493][ T301] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 18.251802][ T301] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 18.252125][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.252438][ T301] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.252743][ T301] ? __create_object (mm/kmemleak.c:771) 
[ 18.253054][ T301] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 18.253372][ T301] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 18.253717][ T301] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.254111][ T301] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 18.254430][ T301] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.254743][ T301] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.255053][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.255378][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.255905][ T301] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.256244][ T301] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.256781][ T301] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.257086][ T301] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.257643][ T301] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.257950][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.258265][ T301] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.258570][ T301] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.259110][ T301] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.259432][ T301] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.259975][ 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) 
[ 18.260294][ T301] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 18.260605][ T301] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.260911][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.261240][ T301] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.261551][ T301] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.262086][ T301] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.262411][ T301] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.262746][ T301] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.263053][ T301] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.263456][ T301] ___sys_sendmsg (net/socket.c:2670) 
[ 18.263760][ T301] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 18.264064][ 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) 
[ 18.264457][ T301] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.264986][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.265301][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.265612][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.265915][ 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) 
[ 18.266446][ T301] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.266756][ T301] __sys_sendmsg (net/socket.c:2700) 
[ 18.267063][ T301] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 18.267669][ T301] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.267988][ T301] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.268301][ T301] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.268608][ T301] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.269213][  T301] RIP: 0033:0x7f11a6cd41e7
[ 18.269528][ 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)
[   18.270873][  T301] RSP: 002b:00007ffe6016f1b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.271341][  T301] RAX: ffffffffffffffda RBX: 00007ffe6016f8e0 RCX: 00007f11a6cd41e7
[   18.271799][  T301] RDX: 0000000000000000 RSI: 00007ffe6016f220 RDI: 0000000000000005
[   18.272494][  T301] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   18.272947][  T301] R10: 000000002ae85910 R11: 0000000000000246 R12: 0000000000000004
[   18.273635][  T301] R13: 00000000686e6fd3 R14: 0000000000499600 R15: 0000000000000000
| [  123.345365][  T605] ------------[ cut here ]------------
| [ 123.345716][ T605] WARNING: CPU: 1 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) 
| [  123.346415][  T605] Modules linked in: act_gact cls_flower sch_ingress bridge stp llc vrf veth
| [  123.349173][  T605] Tainted: [W]=WARN
[  123.349436][  T605] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 123.349854][ 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) 
[ 123.350297][ T605] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[  123.351458][  T605] RSP: 0018:ffffc90001196f70 EFLAGS: 00010246
[  123.351883][  T605] RAX: 0000000000000000 RBX: ffff888005162000 RCX: 0000000000000001
[  123.352370][  T605] RDX: 0000000000000000 RSI: ffffffff97c9b939 RDI: ffffffff974555e0
[  123.352854][  T605] RBP: ffffc90001197058 R08: 0000000000000000 R09: 0000000000000000
[  123.353344][  T605] R10: ffffc90001197088 R11: ffffffff94000130 R12: 1ffff92000232df2
[  123.353835][  T605] R13: 00000000000005dc R14: ffffc90001197088 R15: ffff888005162f08
[  123.354340][  T605] FS:  00007f4d826d9800(0000) GS:ffff88809c537000(0000) knlGS:0000000000000000
[  123.354910][  T605] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  123.355334][  T605] CR2: 00000000004e5aa8 CR3: 000000000bc47005 CR4: 0000000000772ef0
[  123.355838][  T605] PKRU: 55555554
[  123.356085][  T605] Call Trace:
[  123.356334][  T605]  <TASK>
[ 123.356502][ 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) 
[ 123.356918][ T605] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 123.357323][ T605] ? do_set_master (net/core/rtnetlink.c:2932) 
[ 123.357648][ T605] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 123.357972][ T605] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 123.358313][ T605] ? netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 123.358655][ T605] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 123.358968][ T605] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 123.359306][ T605] ? ___sys_sendmsg (net/socket.c:2670) 
[ 123.359622][ T605] ? __sys_sendmsg (net/socket.c:2700) 
[ 123.359947][ T605] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 123.360289][ T605] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 123.360693][ T605] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 123.361022][ T605] netif_set_mtu (net/core/dev.c:9652) 
[ 123.361357][ T605] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 123.361693][ T605] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 123.361936][ T605] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 123.362395][ T605] br_del_if (net/bridge/br_if.c:743) bridge 
[ 123.362750][ T605] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 123.363067][ T605] do_set_master (net/core/rtnetlink.c:2932) 
[ 123.363395][ T605] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 123.363722][ T605] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 123.364135][ T605] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 123.364457][ T605] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 123.364772][ T605] ? __kernel_text_address (kernel/extable.c:79) 
[ 123.365115][ T605] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 123.365437][ 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) 
[ 123.365753][ T605] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 123.366172][ T605] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 123.366493][ T605] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 123.366808][ T605] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 123.367132][ T605] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 123.367451][ T605] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 123.367769][ T605] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 123.368088][ T605] ? __create_object (mm/kmemleak.c:771) 
[ 123.368427][ T605] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 123.368754][ T605] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 123.369081][ T605] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 123.369505][ T605] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 123.369836][ T605] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 123.370204][ T605] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 123.370524][ T605] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 123.370852][ T605] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 123.371181][ T605] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 123.371508][ T605] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 123.371834][ T605] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 123.372165][ T605] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 123.372489][ T605] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 123.372815][ T605] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 123.373150][ T605] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 123.373471][ T605] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 123.373799][ T605] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 123.374152][ T605] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 123.374475][ 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) 
[ 123.374796][ T605] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 123.375132][ T605] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 123.375462][ T605] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 123.375787][ T605] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 123.376129][ T605] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 123.376456][ T605] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 123.376794][ T605] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 123.377128][ T605] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 123.377450][ T605] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 123.377861][ T605] ___sys_sendmsg (net/socket.c:2670) 
[ 123.378199][ T605] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 123.378532][ 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) 
[ 123.378933][ T605] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 123.379266][ T605] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 123.379597][ T605] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 123.379933][ T605] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 123.380266][ 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) 
[ 123.380593][ T605] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 123.380929][ T605] __sys_sendmsg (net/socket.c:2700) 
[ 123.381254][ T605] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 123.381654][ T605] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 123.381988][ T605] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 123.382332][ T605] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 123.382746][ T605] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  123.383138][  T605] RIP: 0033:0x7f4d828a61e7
[ 123.383457][ 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)
[  123.384554][  T605] RSP: 002b:00007ffe5a99bdc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  123.385018][  T605] RAX: ffffffffffffffda RBX: 00007ffe5a99c4f0 RCX: 00007f4d828a61e7
[  123.385488][  T605] RDX: 0000000000000000 RSI: 00007ffe5a99be30 RDI: 0000000000000005
[  123.385945][  T605] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[  123.386422][  T605] R10: 00007f4d827a3ee8 R11: 0000000000000246 R12: 0000000000000002
[  123.386898][  T605] R13: 00000000686e703c R14: 0000000000499600 R15: 0000000000000000
| [  123.519540][  T606] ------------[ cut here ]------------
| [ 123.519886][ T606] WARNING: CPU: 0 PID: 606 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) 
| [  123.520537][  T606] Modules linked in: act_gact cls_flower sch_ingress bridge stp llc vrf veth
| [  123.521827][  T606] Tainted: [W]=WARN
[  123.522075][  T606] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 123.522489][ T606] 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) 
[ 123.522826][ T606] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[  123.523990][  T606] RSP: 0018:ffffc90000df6ef0 EFLAGS: 00010246
[  123.524404][  T606] RAX: 0000000000000000 RBX: ffff888005162000 RCX: 0000000000000001
[  123.524891][  T606] RDX: 0000000000000000 RSI: ffffffff97c9b939 RDI: ffffffff974555e0
[  123.525392][  T606] RBP: ffffc90000df6fe0 R08: 0000000000000000 R09: 0000000000000000
[  123.525875][  T606] R10: ffffc90000df7010 R11: ffffffff98aa8918 R12: 1ffff920001bede2
[  123.526365][  T606] R13: 00000000000005dc R14: ffffc90000df7010 R15: ffff888005162f08
[  123.526850][  T606] FS:  00007fb3aae77800(0000) GS:ffff88809c4b7000(0000) knlGS:0000000000000000
[  123.527434][  T606] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  123.527846][  T606] CR2: 00000000004e5aa8 CR3: 0000000008f36002 CR4: 0000000000772ef0
[  123.528343][  T606] PKRU: 55555554
[  123.528593][  T606] Call Trace:
[  123.528842][  T606]  <TASK>
[ 123.529008][ T606] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 123.529345][ T606] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 123.529676][ T606] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 123.530020][ T606] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 123.530432][ T606] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 123.530762][ T606] netif_set_mtu (net/core/dev.c:9652) 
[ 123.531103][ T606] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 123.531436][ T606] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 123.531884][ T606] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 123.532132][ T606] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 123.532578][ T606] br_add_if (net/bridge/br_if.c:697) bridge 
[ 123.532961][ T606] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 123.533287][ T606] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 123.533594][ T606] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 123.533977][ T606] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 123.534288][ T606] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 123.534602][ T606] ? __kernel_text_address (kernel/extable.c:79) 
[ 123.534910][ T606] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 123.535226][ T606] ? __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) 
[ 123.535530][ T606] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 123.535915][ T606] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 123.536252][ T606] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 123.536602][ T606] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 123.536931][ T606] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 123.537263][ T606] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 123.537587][ T606] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 123.537909][ T606] ? __create_object (mm/kmemleak.c:771) 
[ 123.538249][ T606] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 123.538573][ T606] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 123.538896][ T606] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 123.539306][ T606] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 123.539642][ T606] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 123.540001][ T606] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 123.540316][ T606] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 123.540631][ T606] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 123.540938][ T606] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 123.541247][ T606] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 123.541558][ T606] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 123.541866][ T606] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 123.542189][ T606] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 123.542499][ T606] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 123.542805][ T606] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 123.543117][ T606] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 123.543424][ T606] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 123.543740][ T606] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 123.544046][ T606] ? 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) 
[ 123.544364][ T606] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 123.544670][ T606] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 123.544974][ T606] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 123.545294][ T606] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 123.545604][ T606] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 123.545908][ T606] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 123.546228][ T606] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 123.546542][ T606] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 123.546846][ T606] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 123.547247][ T606] ___sys_sendmsg (net/socket.c:2670) 
[ 123.547557][ T606] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 123.547864][ T606] ? __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) 
[ 123.548258][ T606] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 123.548567][ T606] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 123.548879][ T606] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 123.549196][ T606] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 123.549501][ T606] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 123.549805][ T606] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 123.550144][ T606] __sys_sendmsg (net/socket.c:2700) 
[ 123.550447][ T606] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 123.550824][ T606] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 123.551151][ T606] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 123.551457][ T606] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 123.551767][ T606] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  123.552165][  T606] RIP: 0033:0x7fb3ab0441e7
[ 123.552481][ T606] 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)
[  123.553580][  T606] RSP: 002b:00007ffe80d6d0e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  123.554045][  T606] RAX: ffffffffffffffda RBX: 00007ffe80d6d810 RCX: 00007fb3ab0441e7
[  123.554510][  T606] RDX: 0000000000000000 RSI: 00007ffe80d6d150 RDI: 0000000000000005
[  123.554963][  T606] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  123.555433][  T606] R10: 000000003ad37910 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