======================================
| [   19.895496][  T311] veth1: entered promiscuous mode
| [   19.897733][  T311] ------------[ cut here ]------------
| [ 19.898096][ T311] WARNING: CPU: 2 PID: 311 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   19.898730][  T311] Modules linked in: bridge stp llc 8021q vrf veth
[   19.900673][  T311] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.901081][ T311] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 19.901414][ T311] 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
[   19.902544][  T311] RSP: 0018:ffffc90000ad6ef0 EFLAGS: 00010246
[   19.902962][  T311] RAX: 0000000000000000 RBX: ffff8880095e2000 RCX: 0000000000000001
[   19.903445][  T311] RDX: 0000000000000000 RSI: ffffffff9b29b939 RDI: ffffffff9aa555e0
[   19.903936][  T311] RBP: ffffc90000ad6fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.904433][  T311] R10: ffffc90000ad7010 R11: ffffffff9c0a8918 R12: 1ffff9200015ade2
[   19.904911][  T311] R13: 00000000000005dc R14: ffffc90000ad7010 R15: ffff8880095e2f08
[   19.905413][  T311] FS:  00007f25f0e1e800(0000) GS:ffff8880921b7000(0000) knlGS:0000000000000000
[   19.906007][  T311] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.906453][  T311] CR2: 00000000004e5aa8 CR3: 000000000c502002 CR4: 0000000000772ef0
[   19.906944][  T311] PKRU: 55555554
[   19.907209][  T311] Call Trace:
[   19.907456][  T311]  <TASK>
[ 19.907813][ T311] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.908174][ T311] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.908520][ T311] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.908837][ T311] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.909247][ T311] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.909577][ T311] netif_set_mtu (net/core/dev.c:9652) 
[ 19.909907][ T311] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.910266][ T311] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.910727][ T311] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.910981][ T311] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.911452][ T311] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.911834][ T311] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 19.912191][ T311] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.912519][ T311] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.912930][ T311] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.913277][ T311] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.913613][ T311] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.913951][ T311] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.914298][ T311] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 19.914622][ T311] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.915052][ T311] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.915389][ T311] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.915716][ T311] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.916055][ T311] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.916392][ T311] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.916710][ T311] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.917029][ T311] ? __create_object (mm/kmemleak.c:771) 
[ 19.917367][ T311] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.917690][ T311] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.918035][ T311] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.918447][ T311] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.918771][ T311] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.919126][ T311] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.919453][ T311] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.919814][ T311] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.920148][ T311] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.920466][ T311] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.920797][ T311] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.921129][ T311] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.921451][ T311] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.921777][ T311] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.922117][ T311] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.922440][ T311] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.922767][ T311] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.923120][ T311] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.923444][ T311] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 19.923766][ T311] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 19.924098][ T311] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.924424][ T311] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.924748][ T311] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.925082][ T311] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.925404][ T311] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.925730][ T311] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.926074][ T311] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.926392][ T311] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.926801][ T311] ___sys_sendmsg (net/socket.c:2670) 
[ 19.927130][ T311] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.927447][ T311] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 19.927840][ T311] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.928173][ T311] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.928580][ T311] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.928919][ T311] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.929260][ T311] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.929594][ T311] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.929958][ T311] __sys_sendmsg (net/socket.c:2700) 
[ 19.930292][ T311] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.930717][ T311] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.931064][ T311] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.931386][ T311] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.931716][ T311] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.932120][  T311] RIP: 0033:0x7f25f0feb1e7
[ 19.932458][ T311] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   19.933594][  T311] RSP: 002b:00007ffe89f026d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.934097][  T311] RAX: ffffffffffffffda RBX: 00007ffe89f02e00 RCX: 00007f25f0feb1e7
[   19.934583][  T311] RDX: 0000000000000000 RSI: 00007ffe89f02740 RDI: 0000000000000005
[   19.935085][  T311] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.935582][  T311] R10: 0000000014c58910 R11: 0000000000000246 R12: 0000000000000004
[   19.936084][  T311] R13: 00000000686e65c0 R14: 0000000000499600 R15: 0000000000000000
| [   20.078687][  T313] ------------[ cut here ]------------
| [ 20.079007][ T313] WARNING: CPU: 3 PID: 313 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) 
| [   20.079674][  T313] Modules linked in: bridge stp llc 8021q vrf veth
| [   20.080800][  T313] Tainted: [W]=WARN
[   20.081060][  T313] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.081464][ T313] 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) 
[ 20.081797][ T313] 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
[   20.082956][  T313] RSP: 0018:ffffc90000ad6ef0 EFLAGS: 00010246
[   20.083355][  T313] RAX: 0000000000000000 RBX: ffff8880095e2000 RCX: 0000000000000001
[   20.083814][  T313] RDX: 0000000000000000 RSI: ffffffff9b29b939 RDI: ffffffff9aa555e0
[   20.084283][  T313] RBP: ffffc90000ad6fe0 R08: 0000000000000000 R09: 0000000000000000
[   20.084740][  T313] R10: ffffc90000ad7010 R11: ffffffff9c0a8918 R12: 1ffff9200015ade2
[   20.085229][  T313] R13: 00000000000005dc R14: ffffc90000ad7010 R15: ffff8880095e2f08
[   20.085709][  T313] FS:  00007f1903fc9800(0000) GS:ffff888092237000(0000) knlGS:0000000000000000
[   20.086274][  T313] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.086658][  T313] CR2: 00000000004e5ab0 CR3: 0000000004fd5002 CR4: 0000000000772ef0
[   20.087137][  T313] PKRU: 55555554
[   20.087366][  T313] Call Trace:
[   20.087593][  T313]  <TASK>
[ 20.087752][ T313] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.088073][ T313] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.088388][ T313] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 20.088692][ T313] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 20.089099][ T313] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 20.089429][ T313] netif_set_mtu (net/core/dev.c:9652) 
[ 20.089759][ T313] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.090090][ T313] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 20.090526][ T313] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.090759][ T313] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 20.091191][ T313] br_add_if (net/bridge/br_if.c:697) bridge 
[ 20.091548][ T313] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 20.091886][ T313] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 20.092209][ T313] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 20.092598][ T313] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 20.092908][ T313] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 20.093383][ T313] ? __kernel_text_address (kernel/extable.c:79) 
[ 20.093709][ T313] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.094035][ T313] ? __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) 
[ 20.094515][ T313] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 20.094897][ T313] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.095455][ T313] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.095758][ T313] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 20.096298][ T313] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 20.096606][ T313] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.096912][ T313] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.097364][ T313] ? __create_object (mm/kmemleak.c:771) 
[ 20.097673][ T313] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 20.097986][ T313] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 20.098348][ T313] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 20.098727][ T313] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 20.099050][ T313] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.099361][ T313] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.099688][ T313] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.100000][ T313] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.100315][ T313] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.100619][ T313] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.100923][ T313] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.101235][ T313] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.101540][ T313] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.101850][ T313] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.102187][ T313] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.102492][ T313] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.102798][ T313] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.103121][ T313] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.103423][ T313] ? 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) 
[ 20.103732][ T313] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 20.104051][ T313] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.104363][ T313] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.104673][ T313] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.104983][ T313] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.105298][ T313] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.105615][ T313] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.105924][ T313] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.106239][ T313] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.106640][ T313] ___sys_sendmsg (net/socket.c:2670) 
[ 20.106943][ T313] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 20.107257][ T313] ? __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) 
[ 20.107917][ T313] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.108236][ T313] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.108545][ T313] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.108853][ T313] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.109393][ T313] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 20.109706][ T313] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.110018][ T313] __sys_sendmsg (net/socket.c:2700) 
[ 20.110329][ T313] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 20.110930][ T313] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.111257][ T313] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.111565][ T313] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.111870][ T313] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.112271][  T313] RIP: 0033:0x7f19041961e7
[ 20.112588][ T313] 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)
[   20.113913][  T313] RSP: 002b:00007ffda819fbb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.114387][  T313] RAX: ffffffffffffffda RBX: 00007ffda81a02e0 RCX: 00007f19041961e7
[   20.115077][  T313] RDX: 0000000000000000 RSI: 00007ffda819fc20 RDI: 0000000000000005
[   20.115535][  T313] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   20.115988][  T313] R10: 000000002d03d910 R11: 0000000000000246 R12: 0000000000000004


Finger prints:
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:br_mtu_auto_adjust:br_add_if