======================================
| [   49.334148][  T624] veth1: entered promiscuous mode
| [   49.335553][  T624] ------------[ cut here ]------------
| [ 49.335964][ T624] WARNING: CPU: 3 PID: 624 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   49.337014][  T624] Modules linked in: bridge stp llc 8021q act_gact cls_flower sch_ingress vrf veth
[   49.338936][  T624] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 49.339631][ T624] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 49.340209][ T624] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   49.342143][  T624] RSP: 0018:ffffc900004f6ef0 EFLAGS: 00010246
[   49.342838][  T624] RAX: 0000000000000000 RBX: ffff888004d2a000 RCX: 0000000000000001
[   49.343665][  T624] RDX: 0000000000000000 RSI: ffffffffbb29b941 RDI: ffffffffbaa555e0
[   49.344491][  T624] RBP: ffffc900004f6fe0 R08: 0000000000000000 R09: 0000000000000000
[   49.345329][  T624] R10: ffffc900004f7010 R11: ffffffffbc0a8918 R12: 1ffff9200009ede2
[   49.346163][  T624] R13: 00000000000005dc R14: ffffc900004f7010 R15: ffff888004d2af08
[   49.346976][  T624] FS:  00007f22e63f1800(0000) GS:ffff888079037000(0000) knlGS:0000000000000000
[   49.347943][  T624] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   49.348593][  T624] CR2: 00000000004e5aa8 CR3: 000000000dd74006 CR4: 0000000000772ef0
[   49.349250][  T624] PKRU: 55555554
[   49.349667][  T624] Call Trace:
[   49.350076][  T624]  <TASK>
[ 49.350378][ T624] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 49.350924][ T624] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.351491][ T624] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 49.352041][ T624] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 49.352728][ T624] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 49.353287][ T624] netif_set_mtu (net/core/dev.c:9652) 
[ 49.353840][ T624] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 49.354443][ T624] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 49.355026][ T624] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 49.355461][ T624] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 49.356205][ T624] br_add_if (net/bridge/br_if.c:697) bridge 
[ 49.356723][ T624] do_set_master (net/core/rtnetlink.c:2948) 
[ 49.357248][ T624] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 49.357804][ T624] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 49.358504][ T624] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 49.359047][ T624] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 49.359596][ T624] ? __kernel_text_address (kernel/extable.c:79) 
[ 49.360164][ T624] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.360712][ T624] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 49.361267][ T624] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 49.361937][ T624] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.362498][ T624] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.363033][ T624] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 49.363581][ T624] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 49.364131][ T624] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.364669][ T624] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 49.365226][ T624] ? __create_object (mm/kmemleak.c:771) 
[ 49.365777][ T624] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 49.366330][ T624] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 49.366867][ T624] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 49.367546][ T624] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 49.368100][ T624] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 49.368665][ T624] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 49.369217][ T624] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.369767][ T624] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.370325][ T624] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 49.370860][ T624] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 49.371419][ T624] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 49.371957][ T624] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 49.372516][ T624] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 49.373060][ T624] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.373621][ T624] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 49.374179][ T624] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 49.374720][ T624] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 49.375313][ T624] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 49.375853][ T624] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 49.376415][ T624] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 49.376961][ T624] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 49.377512][ T624] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.378068][ T624] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 49.378630][ T624] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 49.379184][ T624] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 49.379741][ T624] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 49.380303][ T624] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 49.380839][ T624] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 49.381551][ T624] ___sys_sendmsg (net/socket.c:2670) 
[ 49.382097][ T624] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 49.382648][ T624] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 49.383335][ T624] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 49.383883][ T624] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.384443][ T624] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.384994][ T624] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.385556][ T624] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 49.386102][ T624] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 49.386673][ T624] __sys_sendmsg (net/socket.c:2700) 
[ 49.387217][ T624] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 49.387884][ T624] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 49.388462][ T624] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.389005][ T624] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 49.389562][ T624] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   49.390248][  T624] RIP: 0033:0x7f22e65be1e7
[ 49.390814][ T624] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   49.392750][  T624] RSP: 002b:00007ffc4290fc58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   49.393578][  T624] RAX: ffffffffffffffda RBX: 00007ffc42910380 RCX: 00007f22e65be1e7
[   49.394409][  T624] RDX: 0000000000000000 RSI: 00007ffc4290fcc0 RDI: 0000000000000005
[   49.395238][  T624] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   49.396047][  T624] R10: 0000000010daf910 R11: 0000000000000246 R12: 0000000000000004
[   49.396870][  T624] R13: 00000000686e40d5 R14: 0000000000499600 R15: 0000000000000000
| [   64.439955][  T724] ------------[ cut here ]------------
| [ 64.441191][ T724] WARNING: CPU: 0 PID: 724 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) 
| [   64.441815][  T724] Modules linked in: bridge stp llc 8021q act_gact cls_flower sch_ingress vrf veth
| [   64.443007][  T724] Tainted: [W]=WARN
[   64.443252][  T724] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 64.443642][ T724] 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) 
[ 64.443968][ T724] 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
[   64.445064][  T724] RSP: 0018:ffffc90000b26f70 EFLAGS: 00010246
[   64.445477][  T724] RAX: 0000000000000000 RBX: ffff888004d2a000 RCX: 0000000000000001
[   64.445939][  T724] RDX: 0000000000000000 RSI: ffffffffbb29b941 RDI: ffffffffbaa555e0
[   64.446428][  T724] RBP: ffffc90000b27058 R08: 0000000000000000 R09: 0000000000000000
[   64.446906][  T724] R10: ffffc90000b27088 R11: ffffffffb7600130 R12: 1ffff92000164df2
[   64.447398][  T724] R13: 00000000000005dc R14: ffffc90000b27088 R15: ffff888004d2af08
[   64.447880][  T724] FS:  00007fbd549d5800(0000) GS:ffff888078eb7000(0000) knlGS:0000000000000000
[   64.448444][  T724] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   64.448848][  T724] CR2: 00000000004e5aa8 CR3: 000000000e493002 CR4: 0000000000772ef0
[   64.449343][  T724] PKRU: 55555554
[   64.449584][  T724] Call Trace:
[   64.449825][  T724]  <TASK>
[ 64.449989][ T724] ? __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) 
[ 64.450401][ T724] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 64.450762][ T724] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 64.451081][ T724] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 64.451414][ T724] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 64.451730][ T724] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 64.452053][ T724] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 64.452375][ T724] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 64.452702][ T724] ? ___sys_sendmsg (net/socket.c:2670) 
[ 64.453022][ T724] ? __sys_sendmsg (net/socket.c:2700) 
[ 64.453348][ T724] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 64.453668][ T724] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 64.454062][ T724] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 64.454402][ T724] netif_set_mtu (net/core/dev.c:9652) 
[ 64.454723][ T724] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 64.455058][ T724] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 64.455327][ T724] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 64.455769][ T724] br_del_if (net/bridge/br_if.c:743) bridge 
[ 64.456132][ T724] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 64.456462][ T724] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 64.456787][ T724] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 64.457124][ T724] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 64.457529][ T724] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 64.457853][ T724] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 64.458185][ T724] ? __kernel_text_address (kernel/extable.c:79) 
[ 64.458510][ T724] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.458835][ T724] ? __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) 
[ 64.459168][ T724] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 64.459569][ T724] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 64.459894][ T724] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 64.460218][ T724] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 64.460548][ T724] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 64.460870][ T724] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 64.461199][ T724] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 64.461520][ T724] ? __create_object (mm/kmemleak.c:771) 
[ 64.461844][ T724] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 64.462174][ T724] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 64.462500][ T724] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 64.462904][ T724] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 64.463242][ T724] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 64.463566][ T724] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 64.463886][ T724] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.464224][ T724] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 64.464545][ T724] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 64.464863][ T724] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 64.465202][ T724] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 64.465530][ T724] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 64.465849][ T724] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 64.466201][ T724] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.466532][ T724] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 64.466846][ T724] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 64.467196][ T724] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 64.467529][ T724] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 64.467854][ T724] ? 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) 
[ 64.468184][ T724] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 64.468510][ T724] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 64.468826][ T724] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.469154][ T724] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 64.469481][ T724] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 64.469801][ T724] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 64.470140][ T724] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 64.470464][ T724] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 64.470779][ T724] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 64.471195][ T724] ___sys_sendmsg (net/socket.c:2670) 
[ 64.471511][ T724] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 64.471829][ T724] ? __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) 
[ 64.472229][ T724] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 64.472561][ T724] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 64.472878][ T724] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 64.473208][ T724] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 64.473530][ T724] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 64.473848][ T724] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 64.474178][ T724] __sys_sendmsg (net/socket.c:2700) 
[ 64.474494][ T724] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 64.474893][ T724] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 64.475246][ T724] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 64.475568][ T724] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 64.475886][ T724] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   64.476289][  T724] RIP: 0033:0x7fbd54ba21e7
[ 64.476619][ T724] 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)
[   64.477768][  T724] RSP: 002b:00007ffdb88778b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   64.478256][  T724] RAX: ffffffffffffffda RBX: 00007ffdb8877fe0 RCX: 00007fbd54ba21e7
[   64.478734][  T724] RDX: 0000000000000000 RSI: 00007ffdb8877920 RDI: 0000000000000005
[   64.479218][  T724] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   64.479697][  T724] R10: 00007fbd54a9fee8 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