======================================
| [   20.731262][  T322] veth1: entered promiscuous mode
| [   20.732826][  T322] ------------[ cut here ]------------
| [ 20.733170][ T322] WARNING: CPU: 3 PID: 322 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) 
| [   20.733846][  T322] Modules linked in: bridge stp llc 8021q vrf veth
[   20.735128][  T322] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.735557][ T322] 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) 
[ 20.735947][ T322] 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
[   20.737119][  T322] RSP: 0018:ffffc90000616ef0 EFLAGS: 00010246
[   20.737569][  T322] RAX: 0000000000000000 RBX: ffff88800bcaa000 RCX: 0000000000000001
[   20.738065][  T322] RDX: 0000000000000000 RSI: ffffffff95a9b941 RDI: ffffffff952555e0
[   20.738556][  T322] RBP: ffffc90000616fe0 R08: 0000000000000000 R09: 0000000000000000
[   20.739042][  T322] R10: ffffc90000617010 R11: ffffffff968a8918 R12: 1ffff920000c2de2
[   20.739548][  T322] R13: 00000000000005dc R14: ffffc90000617010 R15: ffff88800bcaaf08
[   20.740037][  T322] FS:  00007f797d8f9800(0000) GS:ffff888097a37000(0000) knlGS:0000000000000000
[   20.740620][  T322] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.741035][  T322] CR2: 00000000004e5aa8 CR3: 00000000050f2002 CR4: 0000000000772ef0
[   20.741539][  T322] PKRU: 55555554
[   20.741787][  T322] Call Trace:
[   20.742032][  T322]  <TASK>
[ 20.742203][ T322] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.742542][ T322] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.742893][ T322] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 20.743223][ T322] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 20.743639][ T322] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 20.743970][ T322] netif_set_mtu (net/core/dev.c:9652) 
[ 20.744315][ T322] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.744649][ T322] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 20.745095][ T322] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.745353][ T322] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 20.745790][ T322] br_add_if (net/bridge/br_if.c:697) bridge 
[ 20.746154][ T322] do_set_master (net/core/rtnetlink.c:2948) 
[ 20.746496][ T322] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 20.746832][ T322] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 20.747238][ T322] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 20.747570][ T322] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 20.747893][ T322] ? __kernel_text_address (kernel/extable.c:79) 
[ 20.748225][ T322] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.748562][ T322] ? __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) 
[ 20.748890][ T322] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 20.749305][ T322] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.749637][ T322] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.749962][ T322] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 20.750282][ T322] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 20.750617][ T322] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.750939][ T322] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.751266][ T322] ? __create_object (mm/kmemleak.c:771) 
[ 20.751603][ T322] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 20.751931][ T322] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 20.752260][ T322] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 20.752675][ T322] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 20.753019][ T322] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.753361][ T322] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.753691][ T322] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.754023][ T322] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.754353][ T322] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.754681][ T322] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.755008][ T322] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.755348][ T322] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.755677][ T322] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.756013][ T322] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.756351][ T322] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.756678][ T322] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.757003][ T322] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.757346][ T322] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.757669][ T322] ? 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) 
[ 20.757999][ T322] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 20.758332][ T322] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.758653][ T322] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.759470][ T322] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.759801][ T322] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.760125][ T322] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.760693][ T322] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.761025][ T322] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.761356][ T322] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.761774][ T322] ___sys_sendmsg (net/socket.c:2670) 
[ 20.762096][ T322] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 20.762428][ T322] ? __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) 
[ 20.762845][ T322] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.763175][ T322] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.763515][ T322] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.764067][ T322] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.764403][ T322] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 20.764734][ T322] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.765524][ T322] __sys_sendmsg (net/socket.c:2700) 
[ 20.765848][ T322] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 20.766255][ T322] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.766599][ T322] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.767383][ T322] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.767710][ T322] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.768115][  T322] RIP: 0033:0x7f797dac61e7
[ 20.768469][ T322] 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)
[   20.769890][  T322] RSP: 002b:00007ffe677f4a18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.770396][  T322] RAX: ffffffffffffffda RBX: 00007ffe677f5140 RCX: 00007f797dac61e7
[   20.771113][  T322] RDX: 0000000000000000 RSI: 00007ffe677f4a80 RDI: 0000000000000005
[   20.771609][  T322] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   20.772095][  T322] R10: 0000000024129910 R11: 0000000000000246 R12: 0000000000000004
[   20.772829][  T322] R13: 00000000686e204c R14: 0000000000499600 R15: 0000000000000000
| [   54.763765][  T503] ------------[ cut here ]------------
| [ 54.764085][ T503] WARNING: CPU: 3 PID: 503 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) 
| [   54.764761][  T503] Modules linked in: bridge stp llc 8021q vrf veth
| [   54.766120][  T503] Tainted: [W]=WARN
[   54.766560][  T503] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 54.767214][ T503] 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) 
[ 54.767785][ T503] 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
[   54.769339][  T503] RSP: 0018:ffffc90000eb6f70 EFLAGS: 00010246
[   54.769766][  T503] RAX: 0000000000000000 RBX: ffff88800bcaa000 RCX: 0000000000000001
[   54.770250][  T503] RDX: 0000000000000000 RSI: ffffffff95a9b941 RDI: ffffffff952555e0
[   54.770752][  T503] RBP: ffffc90000eb7058 R08: 0000000000000000 R09: 0000000000000000
[   54.771235][  T503] R10: ffffc90000eb7088 R11: ffffffff91e00130 R12: 1ffff920001d6df2
[   54.771743][  T503] R13: 00000000000005dc R14: ffffc90000eb7088 R15: ffff88800bcaaf08
[   54.772218][  T503] FS:  00007f8a31563800(0000) GS:ffff888097a37000(0000) knlGS:0000000000000000
[   54.772827][  T503] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   54.773234][  T503] CR2: 00000000004e5aa8 CR3: 0000000008df9002 CR4: 0000000000772ef0
[   54.773761][  T503] PKRU: 55555554
[   54.774001][  T503] Call Trace:
[   54.774242][  T503]  <TASK>
[ 54.774410][ T503] ? __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) 
[ 54.774879][ T503] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 54.775231][ T503] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 54.775565][ T503] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 54.775896][ T503] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 54.776222][ T503] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 54.776548][ T503] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 54.776876][ T503] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 54.777192][ T503] ? ___sys_sendmsg (net/socket.c:2670) 
[ 54.777518][ T503] ? __sys_sendmsg (net/socket.c:2700) 
[ 54.777866][ T503] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 54.778182][ T503] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 54.778607][ T503] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.778938][ T503] netif_set_mtu (net/core/dev.c:9652) 
[ 54.779255][ T503] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 54.779624][ T503] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 54.779867][ T503] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 54.780313][ T503] br_del_if (net/bridge/br_if.c:743) bridge 
[ 54.780672][ T503] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 54.780992][ T503] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 54.781332][ T503] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 54.781686][ T503] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 54.782088][ T503] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 54.782420][ T503] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 54.782773][ T503] ? __kernel_text_address (kernel/extable.c:79) 
[ 54.783112][ T503] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.783446][ T503] ? __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) 
[ 54.783800][ T503] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 54.784198][ T503] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 54.784529][ T503] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 54.784856][ T503] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 54.785175][ T503] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 54.785506][ T503] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.785828][ T503] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 54.786153][ T503] ? __create_object (mm/kmemleak.c:771) 
[ 54.786483][ T503] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 54.786835][ T503] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 54.787159][ T503] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 54.787568][ T503] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 54.787877][ T503] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 54.788201][ T503] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 54.788528][ T503] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.788863][ T503] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.789184][ T503] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 54.789511][ T503] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 54.789868][ T503] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 54.790189][ T503] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 54.790523][ T503] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 54.790863][ T503] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.791190][ T503] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 54.791532][ T503] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 54.791852][ T503] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 54.792182][ T503] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 54.792507][ T503] ? 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) 
[ 54.792836][ T503] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 54.793161][ T503] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 54.793492][ T503] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.793848][ T503] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 54.794172][ T503] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 54.794505][ T503] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 54.794836][ T503] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 54.795159][ T503] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 54.795486][ T503] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 54.795903][ T503] ___sys_sendmsg (net/socket.c:2670) 
[ 54.796229][ T503] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 54.796557][ T503] ? __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) 
[ 54.796956][ T503] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 54.797278][ T503] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.797619][ T503] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.797969][ T503] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.798293][ T503] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 54.798645][ T503] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 54.798973][ T503] __sys_sendmsg (net/socket.c:2700) 
[ 54.799291][ T503] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 54.799700][ T503] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 54.800030][ T503] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 54.800361][ T503] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 54.800685][ T503] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   54.801084][  T503] RIP: 0033:0x7f8a317301e7
[ 54.801421][ T503] 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)
[   54.802619][  T503] RSP: 002b:00007ffde6f9f0e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   54.803124][  T503] RAX: ffffffffffffffda RBX: 00007ffde6f9f810 RCX: 00007f8a317301e7
[   54.803624][  T503] RDX: 0000000000000000 RSI: 00007ffde6f9f150 RDI: 0000000000000005
[   54.804102][  T503] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   54.804587][  T503] R10: 00007f8a3162dee8 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