======================================
| [   18.494777][  T300] veth1: entered promiscuous mode
| [   18.497060][  T300] ------------[ cut here ]------------
| [ 18.497411][ T300] WARNING: CPU: 3 PID: 300 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) 
| [   18.498034][  T300] Modules linked in: bridge stp llc vrf veth
[   18.499059][  T300] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.499468][ T300] 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) 
[ 18.499799][ T300] 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
[   18.500929][  T300] RSP: 0018:ffffc900005d6ef0 EFLAGS: 00010246
[   18.501513][  T300] RAX: 0000000000000000 RBX: ffff88800e58a000 RCX: 0000000000000001
[   18.501988][  T300] RDX: 0000000000000000 RSI: ffffffff8c49b941 RDI: ffffffff8bc555e0
[   18.502635][  T300] RBP: ffffc900005d6fe0 R08: 0000000000000000 R09: 0000000000000000
[   18.503100][  T300] R10: ffffc900005d7010 R11: ffffffff8d2a8918 R12: 1ffff920000bade2
[   18.503823][  T300] R13: 00000000000005dc R14: ffffc900005d7010 R15: ffff88800e58af08
[   18.504559][  T300] FS:  00007fee9eab7800(0000) GS:ffff8880a1037000(0000) knlGS:0000000000000000
[   18.505110][  T300] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.505653][  T300] CR2: 00000000004e5aa8 CR3: 000000000e4f3006 CR4: 0000000000772ef0
[   18.506126][  T300] PKRU: 55555554
[   18.506507][  T300] Call Trace:
[   18.506743][  T300]  <TASK>
[ 18.506910][ T300] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.507318][ T300] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.507635][ T300] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.507942][ T300] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.508341][ T300] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.508653][ T300] netif_set_mtu (net/core/dev.c:9652) 
[ 18.508962][ T300] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.509291][ T300] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 18.509720][ T300] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.510150][ T300] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 18.510593][ T300] br_add_if (net/bridge/br_if.c:697) bridge 
[ 18.510957][ T300] do_set_master (net/core/rtnetlink.c:2948) 
[ 18.511280][ T300] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 18.511592][ T300] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 18.511987][ T300] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.512301][ T300] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.512609][ T300] ? __kernel_text_address (kernel/extable.c:79) 
[ 18.512920][ T300] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.513244][ T300] ? __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) 
[ 18.513551][ T300] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 18.513965][ T300] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.514282][ T300] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.514589][ T300] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 18.514894][ T300] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 18.515210][ T300] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.515522][ T300] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.515839][ T300] ? __create_object (mm/kmemleak.c:771) 
[ 18.516154][ T300] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 18.516478][ T300] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 18.516786][ T300] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.517166][ T300] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 18.517490][ T300] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.517805][ T300] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.518113][ T300] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.518432][ T300] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.518746][ T300] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.519052][ T300] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.519368][ T300] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.519675][ T300] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.519980][ T300] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.520301][ T300] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.520613][ T300] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.520935][ T300] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.521256][ T300] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.521573][ T300] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.521877][ T300] ? 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) 
[ 18.522195][ T300] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 18.522507][ T300] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.522811][ T300] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.523127][ T300] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.523450][ T300] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.523757][ T300] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.524075][ T300] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.524393][ T300] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.524702][ T300] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.525099][ T300] ___sys_sendmsg (net/socket.c:2670) 
[ 18.525413][ T300] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 18.525725][ T300] ? __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) 
[ 18.526106][ T300] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.526648][ T300] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.526957][ T300] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.527274][ T300] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.527844][ T300] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 18.528153][ T300] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.528479][ T300] __sys_sendmsg (net/socket.c:2700) 
[ 18.528788][ T300] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 18.529168][ T300] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.529723][ T300] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.530034][ T300] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.530354][ T300] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.530747][  T300] RIP: 0033:0x7fee9ec841e7
[ 18.531306][ T300] 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)
[   18.532881][  T300] RSP: 002b:00007ffc608c1ae8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.533362][  T300] RAX: ffffffffffffffda RBX: 00007ffc608c2210 RCX: 00007fee9ec841e7
[   18.533829][  T300] RDX: 0000000000000000 RSI: 00007ffc608c1b50 RDI: 0000000000000005
[   18.534757][  T300] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   18.535224][  T300] R10: 000000002e3c8910 R11: 0000000000000246 R12: 0000000000000004
[   18.535914][  T300] R13: 00000000686e45fe R14: 0000000000499600 R15: 0000000000000000
| [   18.677775][  T302] ------------[ cut here ]------------
| [ 18.678138][ T302] WARNING: CPU: 2 PID: 302 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   18.678778][  T302] Modules linked in: bridge stp llc vrf veth
| [   18.679832][  T302] Tainted: [W]=WARN
[   18.680080][  T302] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.680481][ T302] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 18.680818][ T302] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   18.681919][  T302] RSP: 0018:ffffc900005d6ef0 EFLAGS: 00010246
[   18.682340][  T302] RAX: 0000000000000000 RBX: ffff88800e58a000 RCX: 0000000000000001
[   18.682806][  T302] RDX: 0000000000000000 RSI: ffffffff8c49b941 RDI: ffffffff8bc555e0
[   18.683280][  T302] RBP: ffffc900005d6fe0 R08: 0000000000000000 R09: 0000000000000000
[   18.683748][  T302] R10: ffffc900005d7010 R11: ffffffff8d2a8918 R12: 1ffff920000bade2
[   18.684222][  T302] R13: 00000000000005dc R14: ffffc900005d7010 R15: ffff88800e58af08
[   18.684688][  T302] FS:  00007f509469a800(0000) GS:ffff8880a0fb7000(0000) knlGS:0000000000000000
[   18.685234][  T302] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.685627][  T302] CR2: 00000000004e5ab0 CR3: 000000000fb52003 CR4: 0000000000772ef0
[   18.686101][  T302] PKRU: 55555554
[   18.686349][  T302] Call Trace:
[   18.686589][  T302]  <TASK>
[ 18.686759][ T302] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.687075][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.687410][ T302] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.687724][ T302] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.688117][ T302] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.688447][ T302] netif_set_mtu (net/core/dev.c:9652) 
[ 18.688763][ T302] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.689091][ T302] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 18.689538][ T302] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.689781][ T302] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 18.690210][ T302] br_add_if (net/bridge/br_if.c:697) bridge 
[ 18.690581][ T302] do_set_master (net/core/rtnetlink.c:2948) 
[ 18.690920][ T302] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 18.691251][ T302] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 18.691655][ T302] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.691970][ T302] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.692297][ T302] ? __kernel_text_address (kernel/extable.c:79) 
[ 18.692619][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.692944][ T302] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 18.693276][ T302] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 18.693667][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.693986][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.694311][ T302] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 18.694640][ T302] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 18.694964][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.695294][ T302] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.695610][ T302] ? __create_object (mm/kmemleak.c:771) 
[ 18.695926][ T302] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 18.696252][ T302] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 18.696566][ T302] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.696958][ T302] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 18.697291][ T302] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.697616][ T302] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.697934][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.698270][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.698586][ T302] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.698902][ T302] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.699230][ T302] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.699548][ T302] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.699867][ T302] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.700197][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.700530][ T302] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.700863][ T302] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.701194][ T302] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.701522][ T302] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.701836][ T302] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 18.702155][ T302] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 18.702485][ T302] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.702806][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.703132][ T302] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.703462][ T302] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.703783][ T302] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.704104][ T302] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.704436][ T302] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.704750][ T302] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.705154][ T302] ___sys_sendmsg (net/socket.c:2670) 
[ 18.705491][ T302] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 18.705810][ T302] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 18.706209][ T302] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.706531][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.706850][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.707172][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.707503][ T302] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 18.707819][ T302] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.708142][ T302] __sys_sendmsg (net/socket.c:2700) 
[ 18.708468][ T302] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 18.708858][ T302] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.709194][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.709514][ T302] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.709836][ T302] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.710234][  T302] RIP: 0033:0x7f50948671e7
[ 18.710561][ T302] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   18.711682][  T302] RSP: 002b:00007ffd669567a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.712160][  T302] RAX: ffffffffffffffda RBX: 00007ffd66956ed0 RCX: 00007f50948671e7
[   18.712638][  T302] RDX: 0000000000000000 RSI: 00007ffd66956810 RDI: 0000000000000005
[   18.713103][  T302] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   18.713577][  T302] R10: 0000000018fa8910 R11: 0000000000000246 R12: 0000000000000004
[   18.714048][  T302] R13: 00000000686e45fe R14: 0000000000499600 R15: 0000000000000000
| [  125.980515][  T606] ------------[ cut here ]------------
| [ 125.980873][ 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) 
| [  125.981528][  T606] Modules linked in: act_gact cls_flower sch_ingress bridge stp llc vrf veth
| [  125.982762][  T606] Tainted: [W]=WARN
[  125.983004][  T606] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 125.983415][ 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) 
[ 125.983735][ T606] 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
[  125.984863][  T606] RSP: 0018:ffffc9000123ef70 EFLAGS: 00010246
[  125.985272][  T606] RAX: 0000000000000000 RBX: ffff88800e58a000 RCX: 0000000000000001
[  125.985740][  T606] RDX: 0000000000000000 RSI: ffffffff8c49b941 RDI: ffffffff8bc555e0
[  125.986233][  T606] RBP: ffffc9000123f058 R08: 0000000000000000 R09: 0000000000000000
[  125.986700][  T606] R10: ffffc9000123f088 R11: ffffffff88800130 R12: 1ffff92000247df2
[  125.987164][  T606] R13: 00000000000005dc R14: ffffc9000123f088 R15: ffff88800e58af08
[  125.987643][  T606] FS:  00007f5714fe4800(0000) GS:ffff8880a0eb7000(0000) knlGS:0000000000000000
[  125.988209][  T606] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  125.988601][  T606] CR2: 00000000004e5aa8 CR3: 000000000604f001 CR4: 0000000000772ef0
[  125.989072][  T606] PKRU: 55555554
[  125.989316][  T606] Call Trace:
[  125.989551][  T606]  <TASK>
[ 125.989708][ 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) 
[ 125.990111][ T606] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 125.990509][ T606] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 125.990835][ T606] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 125.991154][ T606] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 125.991466][ T606] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 125.991777][ T606] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 125.992082][ T606] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 125.992420][ T606] ? ___sys_sendmsg (net/socket.c:2670) 
[ 125.992726][ T606] ? __sys_sendmsg (net/socket.c:2700) 
[ 125.993042][ T606] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 125.993370][ T606] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 125.993758][ T606] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 125.994090][ T606] netif_set_mtu (net/core/dev.c:9652) 
[ 125.994413][ T606] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 125.994735][ T606] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 125.994966][ T606] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 125.995395][ T606] br_del_if (net/bridge/br_if.c:743) bridge 
[ 125.995726][ T606] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 125.996029][ T606] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 125.996342][ T606] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 125.996658][ T606] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 125.997043][ T606] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 125.997356][ T606] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 125.997660][ T606] ? __kernel_text_address (kernel/extable.c:79) 
[ 125.998015][ T606] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 125.998335][ 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) 
[ 125.998639][ T606] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 125.999015][ T606] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 125.999326][ T606] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 125.999641][ T606] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 125.999945][ T606] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 126.000281][ T606] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 126.000587][ T606] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 126.000907][ T606] ? __create_object (mm/kmemleak.c:771) 
[ 126.001245][ T606] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 126.001566][ T606] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 126.001878][ T606] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 126.002268][ T606] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 126.002591][ T606] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 126.002905][ T606] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 126.003229][ T606] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 126.003550][ T606] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 126.003864][ T606] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 126.004172][ T606] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 126.004502][ T606] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 126.004807][ T606] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 126.005130][ T606] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 126.005446][ T606] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 126.005755][ T606] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 126.006072][ T606] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 126.006385][ T606] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 126.006701][ T606] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 126.007007][ 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) 
[ 126.007342][ T606] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 126.007655][ T606] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 126.007958][ T606] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 126.008275][ T606] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 126.008583][ T606] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 126.008885][ T606] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 126.009215][ T606] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 126.009523][ T606] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 126.009836][ T606] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 126.010247][ T606] ___sys_sendmsg (net/socket.c:2670) 
[ 126.010554][ T606] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 126.010868][ 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) 
[ 126.011271][ T606] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 126.011599][ T606] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 126.011929][ T606] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 126.012253][ T606] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 126.012560][ 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) 
[ 126.012864][ T606] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 126.013189][ T606] __sys_sendmsg (net/socket.c:2700) 
[ 126.013502][ T606] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 126.013897][ T606] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 126.014233][ T606] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 126.014560][ T606] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 126.014871][ T606] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  126.015294][  T606] RIP: 0033:0x7f57151b11e7
[ 126.015627][ 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)
[  126.016763][  T606] RSP: 002b:00007ffddc8a1548 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  126.017241][  T606] RAX: ffffffffffffffda RBX: 00007ffddc8a1c70 RCX: 00007f57151b11e7
[  126.017704][  T606] RDX: 0000000000000000 RSI: 00007ffddc8a15b0 RDI: 0000000000000005
[  126.018173][  T606] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[  126.018650][  T606] R10: 00007f57150aeee8 R11: 0000000000000246 R12: 0000000000000002
[  126.019103][  T606] R13: 00000000686e4669 R14: 0000000000499600 R15: 0000000000000000
| [  126.160190][  T607] ------------[ cut here ]------------
| [ 126.160499][ T607] WARNING: CPU: 3 PID: 607 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  126.161129][  T607] Modules linked in: act_gact cls_flower sch_ingress bridge stp llc vrf veth
| [  126.162391][  T607] Tainted: [W]=WARN
[  126.162626][  T607] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 126.163010][ T607] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 126.163334][ T607] 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
[  126.164463][  T607] RSP: 0018:ffffc9000123eef0 EFLAGS: 00010246
[  126.164866][  T607] RAX: 0000000000000000 RBX: ffff88800e58a000 RCX: 0000000000000001
[  126.165348][  T607] RDX: 0000000000000000 RSI: ffffffff8c49b941 RDI: ffffffff8bc555e0
[  126.165822][  T607] RBP: ffffc9000123efe0 R08: 0000000000000000 R09: 0000000000000000
[  126.166294][  T607] R10: ffffc9000123f010 R11: ffffffff8d2a8918 R12: 1ffff92000247de2
[  126.166762][  T607] R13: 00000000000005dc R14: ffffc9000123f010 R15: ffff88800e58af08
[  126.167230][  T607] FS:  00007fbed93df800(0000) GS:ffff8880a1037000(0000) knlGS:0000000000000000
[  126.167813][  T607] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  126.168213][  T607] CR2: 00000000004e5aa8 CR3: 000000000e5c3005 CR4: 0000000000772ef0
[  126.168689][  T607] PKRU: 55555554
[  126.168936][  T607] Call Trace:
[  126.169190][  T607]  <TASK>
[ 126.169351][ T607] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 126.169660][ T607] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 126.169986][ T607] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 126.170315][ T607] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 126.170706][ T607] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 126.171032][ T607] netif_set_mtu (net/core/dev.c:9652) 
[ 126.171379][ T607] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 126.171711][ T607] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 126.172149][ T607] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 126.172412][ T607] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 126.172840][ T607] br_add_if (net/bridge/br_if.c:697) bridge 
[ 126.173203][ T607] do_set_master (net/core/rtnetlink.c:2948) 
[ 126.173527][ T607] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 126.173832][ T607] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 126.174241][ T607] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 126.174568][ T607] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 126.174884][ T607] ? __kernel_text_address (kernel/extable.c:79) 
[ 126.175235][ T607] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 126.175560][ T607] ? __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) 
[ 126.175871][ T607] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 126.176273][ T607] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 126.176592][ T607] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 126.176895][ T607] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 126.177237][ T607] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 126.177545][ T607] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 126.177864][ T607] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 126.178194][ T607] ? __create_object (mm/kmemleak.c:771) 
[ 126.178515][ T607] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 126.178822][ T607] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 126.179135][ T607] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 126.179546][ T607] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 126.179858][ T607] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 126.180174][ T607] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 126.180508][ T607] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 126.180832][ T607] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 126.181145][ T607] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 126.181458][ T607] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 126.181763][ T607] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 126.182085][ T607] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 126.182408][ T607] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 126.182718][ T607] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 126.183046][ T607] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 126.183376][ T607] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 126.183688][ T607] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 126.184007][ T607] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 126.184329][ T607] ? 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) 
[ 126.184639][ T607] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 126.184953][ T607] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 126.185290][ T607] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 126.185616][ T607] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 126.185934][ T607] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 126.186249][ T607] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 126.186568][ T607] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 126.186881][ T607] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 126.187204][ T607] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 126.187594][ T607] ___sys_sendmsg (net/socket.c:2670) 
[ 126.187906][ T607] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 126.188239][ T607] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 126.188624][ T607] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 126.188940][ T607] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 126.189274][ T607] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 126.189586][ T607] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 126.189891][ T607] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 126.190210][ T607] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 126.190535][ T607] __sys_sendmsg (net/socket.c:2700) 
[ 126.190853][ T607] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 126.191252][ T607] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 126.191575][ T607] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 126.191894][ T607] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 126.192223][ T607] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  126.192605][  T607] RIP: 0033:0x7fbed95ac1e7
[ 126.192933][ T607] 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)
[  126.194079][  T607] RSP: 002b:00007ffe60c4b8f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  126.194563][  T607] RAX: ffffffffffffffda RBX: 00007ffe60c4c020 RCX: 00007fbed95ac1e7
[  126.195020][  T607] RDX: 0000000000000000 RSI: 00007ffe60c4b960 RDI: 0000000000000005
[  126.195527][  T607] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  126.195994][  T607] R10: 0000000034e66910 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