======================================
| [   19.210307][  T307] veth1: entered promiscuous mode
| [   19.211833][  T307] ------------[ cut here ]------------
| [ 19.212157][ T307] WARNING: CPU: 0 PID: 307 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) 
| [   19.212958][  T307] Modules linked in: bridge stp llc vrf veth
[   19.214038][  T307] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.214445][ T307] 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) 
[ 19.214791][ T307] 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
[   19.215954][  T307] RSP: 0018:ffffc90000676ef0 EFLAGS: 00010246
[   19.216379][  T307] RAX: 0000000000000000 RBX: ffff88800baca000 RCX: 0000000000000001
[   19.216890][  T307] RDX: 0000000000000000 RSI: ffffffffaa49b941 RDI: ffffffffa9c555e0
[   19.217406][  T307] RBP: ffffc90000676fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.217923][  T307] R10: ffffc90000677010 R11: ffffffffab2a8918 R12: 1ffff920000cede2
[   19.218411][  T307] R13: 00000000000005dc R14: ffffc90000677010 R15: ffff88800bacaf08
[   19.218906][  T307] FS:  00007fcc39be2800(0000) GS:ffff888089cb7000(0000) knlGS:0000000000000000
[   19.219493][  T307] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.219921][  T307] CR2: 00000000004e5aa8 CR3: 000000000a86b005 CR4: 0000000000772ef0
[   19.220418][  T307] PKRU: 55555554
[   19.220678][  T307] Call Trace:
[   19.220933][  T307]  <TASK>
[ 19.221103][ T307] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.221432][ T307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.221801][ T307] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.222127][ T307] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.222541][ T307] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.222878][ T307] netif_set_mtu (net/core/dev.c:9652) 
[ 19.223205][ T307] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.223540][ T307] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.224001][ T307] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.224252][ T307] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.224704][ T307] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.225076][ T307] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.225405][ T307] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.225740][ T307] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.226161][ T307] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.226497][ T307] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.226833][ T307] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.227166][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.227517][ T307] ? __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) 
[ 19.227853][ T307] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.228254][ T307] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.228581][ T307] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.228936][ T307] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.229266][ T307] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.229615][ T307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.229963][ T307] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.230302][ T307] ? __create_object (mm/kmemleak.c:771) 
[ 19.230648][ T307] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.230984][ T307] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.231318][ T307] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.231757][ T307] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.232095][ T307] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.232432][ T307] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.232770][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.233109][ T307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.233465][ T307] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.233797][ T307] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.234131][ T307] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.234458][ T307] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.234805][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.235143][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.235480][ T307] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.235834][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.236165][ T307] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.236514][ T307] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.236850][ T307] ? 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) 
[ 19.237186][ T307] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.237522][ T307] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.237864][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.238197][ T307] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.238532][ T307] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.238881][ T307] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.239223][ T307] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.239561][ T307] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.239903][ T307] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.240329][ T307] ___sys_sendmsg (net/socket.c:2670) 
[ 19.240668][ T307] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.240995][ T307] ? __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) 
[ 19.241683][ T307] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.242006][ T307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.242347][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.242698][ T307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.243032][ T307] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.243365][ T307] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.243718][ T307] __sys_sendmsg (net/socket.c:2700) 
[ 19.244041][ T307] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.244668][ T307] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.244991][ T307] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.245315][ T307] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.245873][ T307] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.246492][  T307] RIP: 0033:0x7fcc39daf1e7
[ 19.246837][ T307] 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)
[   19.248281][  T307] RSP: 002b:00007ffef29e1548 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.248800][  T307] RAX: ffffffffffffffda RBX: 00007ffef29e1c70 RCX: 00007fcc39daf1e7
[   19.249300][  T307] RDX: 0000000000000000 RSI: 00007ffef29e15b0 RDI: 0000000000000005
[   19.249805][  T307] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.250291][  T307] R10: 00000000119ad910 R11: 0000000000000246 R12: 0000000000000004
[   19.250797][  T307] R13: 00000000686e3e47 R14: 0000000000499600 R15: 0000000000000000
| [   28.988153][  T359] ------------[ cut here ]------------
| [ 28.988477][ T359] WARNING: CPU: 3 PID: 359 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) 
| [   28.989899][  T359] Modules linked in: bridge stp llc vrf veth
| [   28.990994][  T359] Tainted: [W]=WARN
[   28.991231][  T359] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 28.991662][ T359] 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) 
[ 28.992019][ T359] 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
[   28.993146][  T359] RSP: 0018:ffffc90000796f70 EFLAGS: 00010246
[   28.993535][  T359] RAX: 0000000000000000 RBX: ffff88800baca000 RCX: 0000000000000001
[   28.994015][  T359] RDX: 0000000000000000 RSI: ffffffffaa49b941 RDI: ffffffffa9c555e0
[   28.994483][  T359] RBP: ffffc90000797058 R08: 0000000000000000 R09: 0000000000000000
[   28.994980][  T359] R10: ffffc90000797088 R11: ffffffffa6800130 R12: 1ffff920000f2df2
[   28.995445][  T359] R13: 00000000000005dc R14: ffffc90000797088 R15: ffff88800bacaf08
[   28.995930][  T359] FS:  00007f4d79e51800(0000) GS:ffff888089e37000(0000) knlGS:0000000000000000
[   28.996481][  T359] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.996888][  T359] CR2: 00000000004e5aa8 CR3: 0000000009a19006 CR4: 0000000000772ef0
[   28.997369][  T359] PKRU: 55555554
[   28.997613][  T359] Call Trace:
[   28.997844][  T359]  <TASK>
[ 28.998032][ T359] ? __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) 
[ 28.998456][ T359] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 28.998821][ T359] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 28.999140][ T359] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 28.999454][ T359] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 28.999786][ T359] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 29.000097][ T359] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 29.000401][ T359] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 29.000718][ T359] ? ___sys_sendmsg (net/socket.c:2670) 
[ 29.001027][ T359] ? __sys_sendmsg (net/socket.c:2700) 
[ 29.001344][ T359] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 29.001668][ T359] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 29.002057][ T359] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 29.002370][ T359] netif_set_mtu (net/core/dev.c:9652) 
[ 29.002687][ T359] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 29.003011][ T359] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 29.003242][ T359] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 29.003699][ T359] br_del_if (net/bridge/br_if.c:743) bridge 
[ 29.004039][ T359] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 29.004344][ T359] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 29.004661][ T359] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 29.004973][ T359] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 29.005359][ T359] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 29.005676][ T359] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 29.005983][ T359] ? __kernel_text_address (kernel/extable.c:79) 
[ 29.006297][ T359] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 29.006621][ T359] ? __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) 
[ 29.006926][ T359] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 29.007302][ T359] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 29.007631][ T359] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 29.007933][ T359] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 29.008260][ T359] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 29.008572][ T359] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 29.008888][ T359] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 29.009189][ T359] ? __create_object (mm/kmemleak.c:771) 
[ 29.009495][ T359] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 29.009810][ T359] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 29.010113][ T359] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 29.010490][ T359] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 29.010816][ T359] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 29.011125][ T359] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 29.011430][ T359] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 29.011790][ T359] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 29.012096][ T359] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 29.012396][ T359] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 29.012713][ T359] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 29.013016][ T359] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 29.013326][ T359] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 29.013643][ T359] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 29.013955][ T359] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 29.014258][ T359] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 29.014563][ T359] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 29.014888][ T359] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 29.015191][ T359] ? 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) 
[ 29.015506][ T359] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 29.015834][ T359] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 29.016137][ T359] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 29.016448][ T359] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 29.016763][ T359] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 29.017068][ T359] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 29.017377][ T359] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 29.017693][ T359] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 29.018004][ T359] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 29.018392][ T359] ___sys_sendmsg (net/socket.c:2670) 
[ 29.018704][ T359] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 29.019008][ T359] ? __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) 
[ 29.019388][ T359] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 29.019714][ T359] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 29.020029][ T359] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 29.020338][ T359] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 29.020652][ T359] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 29.020955][ T359] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 29.021267][ T359] __sys_sendmsg (net/socket.c:2700) 
[ 29.021568][ T359] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 29.021966][ T359] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 29.022286][ T359] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 29.022615][ T359] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 29.022922][ T359] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   29.023299][  T359] RIP: 0033:0x7f4d7a01e1e7
[ 29.023635][ T359] 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)
[   29.024733][  T359] RSP: 002b:00007ffe4d6580f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   29.025196][  T359] RAX: ffffffffffffffda RBX: 00007ffe4d658820 RCX: 00007f4d7a01e1e7
[   29.025661][  T359] RDX: 0000000000000000 RSI: 00007ffe4d658160 RDI: 0000000000000005
[   29.026119][  T359] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   29.026580][  T359] R10: 00007f4d79f1bee8 R11: 0000000000000246 R12: 0000000000000003
[   29.027049][  T359] R13: 00000000686e3e51 R14: 0000000000499600 R15: 0000000000000000
| [   31.257543][  T361] ------------[ cut here ]------------
| [ 31.257878][ T361] WARNING: CPU: 3 PID: 361 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) 
| [   31.258488][  T361] Modules linked in: bridge stp llc vrf veth
| [   31.259510][  T361] Tainted: [W]=WARN
[   31.259749][  T361] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 31.260129][ T361] 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) 
[ 31.260441][ T361] 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
[   31.261532][  T361] RSP: 0018:ffffc900007b6ef0 EFLAGS: 00010246
[   31.261959][  T361] RAX: 0000000000000000 RBX: ffff88800baca000 RCX: 0000000000000001
[   31.262417][  T361] RDX: 0000000000000000 RSI: ffffffffaa49b941 RDI: ffffffffa9c555e0
[   31.262878][  T361] RBP: ffffc900007b6fe0 R08: 0000000000000000 R09: 0000000000000000
[   31.263367][  T361] R10: ffffc900007b7010 R11: ffffffffab2a8918 R12: 1ffff920000f6de2
[   31.263831][  T361] R13: 00000000000005dc R14: ffffc900007b7010 R15: ffff88800bacaf08
[   31.264286][  T361] FS:  00007fc2b947c800(0000) GS:ffff888089e37000(0000) knlGS:0000000000000000
[   31.264826][  T361] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.265206][  T361] CR2: 00000000004e5aa8 CR3: 0000000009a19002 CR4: 0000000000772ef0
[   31.265687][  T361] PKRU: 55555554
[   31.265914][  T361] Call Trace:
[   31.266140][  T361]  <TASK>
[ 31.266297][ T361] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 31.266615][ T361] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.266926][ T361] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 31.267226][ T361] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 31.267620][ T361] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 31.267928][ T361] netif_set_mtu (net/core/dev.c:9652) 
[ 31.268232][ T361] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 31.268547][ T361] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 31.268983][ T361] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 31.269218][ T361] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 31.269652][ T361] br_add_if (net/bridge/br_if.c:697) bridge 
[ 31.270073][ T361] do_set_master (net/core/rtnetlink.c:2948) 
[ 31.270646][ T361] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 31.271051][ T361] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 31.271438][ T361] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 31.271767][ T361] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 31.272070][ T361] ? __kernel_text_address (kernel/extable.c:79) 
[ 31.272411][ T361] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.272731][ T361] ? __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) 
[ 31.273038][ T361] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 31.273417][ T361] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 31.273752][ T361] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 31.274058][ T361] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 31.274360][ T361] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 31.274675][ T361] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.274987][ T361] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 31.275287][ T361] ? __create_object (mm/kmemleak.c:771) 
[ 31.275603][ T361] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 31.275911][ T361] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 31.276213][ T361] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 31.276600][ T361] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 31.276910][ T361] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 31.277220][ T361] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 31.277528][ T361] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.277855][ T361] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.278160][ T361] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 31.278462][ T361] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 31.278775][ T361] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 31.279077][ T361] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 31.279383][ T361] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 31.279703][ T361] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.280012][ T361] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 31.280316][ T361] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 31.280632][ T361] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 31.280945][ T361] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 31.281245][ T361] ? 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) 
[ 31.281549][ T361] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 31.281889][ T361] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 31.282195][ T361] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.282504][ T361] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 31.282819][ T361] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 31.283122][ T361] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 31.283435][ T361] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 31.283759][ T361] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 31.284064][ T361] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 31.284457][ T361] ___sys_sendmsg (net/socket.c:2670) 
[ 31.284769][ T361] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 31.285072][ T361] ? __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) 
[ 31.285448][ T361] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 31.285772][ T361] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.286085][ T361] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.286393][ T361] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.286715][ T361] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 31.287016][ T361] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 31.287325][ T361] __sys_sendmsg (net/socket.c:2700) 
[ 31.287634][ T361] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 31.288013][ T361] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 31.288328][ T361] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 31.288641][ T361] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 31.288950][ T361] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   31.289324][  T361] RIP: 0033:0x7fc2b96491e7
[ 31.289657][ T361] 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)
[   31.290773][  T361] RSP: 002b:00007fff47dcf7a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   31.291235][  T361] RAX: ffffffffffffffda RBX: 00007fff47dcfed0 RCX: 00007fc2b96491e7
[   31.291712][  T361] RDX: 0000000000000000 RSI: 00007fff47dcf810 RDI: 0000000000000005
[   31.292167][  T361] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   31.292627][  T361] R10: 0000000003655910 R11: 0000000000000246 R12: 0000000000000004
[   31.293084][  T361] R13: 00000000686e3e54 R14: 0000000000499600 R15: 0000000000000000
| [   52.723719][  T468] ------------[ cut here ]------------
| [ 52.724074][ T468] WARNING: CPU: 1 PID: 468 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) 
| [   52.726124][  T468] Modules linked in: bridge stp llc vrf veth
| [   52.727212][  T468] Tainted: [W]=WARN
[   52.727461][  T468] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 52.727876][ T468] 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) 
[ 52.728211][ T468] 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
[   52.729379][  T468] RSP: 0018:ffffc90000d26f70 EFLAGS: 00010246
[   52.729797][  T468] RAX: 0000000000000000 RBX: ffff88800baca000 RCX: 0000000000000001
[   52.730275][  T468] RDX: 0000000000000000 RSI: ffffffffaa49b941 RDI: ffffffffa9c555e0
[   52.730767][  T468] RBP: ffffc90000d27058 R08: 0000000000000000 R09: 0000000000000000
[   52.731255][  T468] R10: ffffc90000d27088 R11: ffffffffaa979160 R12: 1ffff920001a4df2
[   52.731787][  T468] R13: 00000000000005dc R14: ffffc90000d27088 R15: ffff88800bacaf08
[   52.732274][  T468] FS:  00007f6d788dc800(0000) GS:ffff888089d37000(0000) knlGS:0000000000000000
[   52.732851][  T468] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   52.733260][  T468] CR2: 00000000004e5aa8 CR3: 000000000ba24001 CR4: 0000000000772ef0
[   52.733758][  T468] PKRU: 55555554
[   52.733999][  T468] Call Trace:
[   52.734238][  T468]  <TASK>
[ 52.734404][ T468] ? __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) 
[ 52.734826][ T468] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 52.735223][ T468] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 52.735549][ T468] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 52.735882][ T468] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 52.736209][ T468] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 52.736534][ T468] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 52.736867][ T468] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 52.737193][ T468] ? ___sys_sendmsg (net/socket.c:2670) 
[ 52.737516][ T468] ? __sys_sendmsg (net/socket.c:2700) 
[ 52.737849][ T468] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 52.738179][ T468] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 52.738594][ T468] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 52.738929][ T468] netif_set_mtu (net/core/dev.c:9652) 
[ 52.739252][ T468] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 52.739601][ T468] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 52.739848][ T468] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 52.740291][ T468] br_del_if (net/bridge/br_if.c:743) bridge 
[ 52.740672][ T468] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 52.740999][ T468] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 52.741325][ T468] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 52.741661][ T468] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 52.742116][ T468] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 52.742439][ T468] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 52.742770][ T468] ? __kernel_text_address (kernel/extable.c:79) 
[ 52.743107][ T468] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 52.743433][ T468] ? __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) 
[ 52.743767][ T468] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 52.744175][ T468] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 52.744520][ T468] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 52.744851][ T468] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 52.745173][ T468] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 52.745500][ T468] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 52.745836][ T468] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 52.746156][ T468] ? __create_object (mm/kmemleak.c:771) 
[ 52.746483][ T468] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 52.746813][ T468] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 52.747134][ T468] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 52.747537][ T468] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 52.747882][ T468] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 52.748222][ T468] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 52.748546][ T468] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 52.748886][ T468] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 52.749210][ T468] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 52.749530][ T468] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 52.749860][ T468] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 52.750180][ T468] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 52.750510][ T468] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 52.750859][ T468] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 52.751170][ T468] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 52.751473][ T468] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 52.751795][ T468] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 52.752117][ T468] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 52.752424][ T468] ? 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) 
[ 52.752756][ T468] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 52.753072][ T468] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 52.753376][ T468] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 52.753736][ T468] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 52.754061][ T468] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 52.754386][ T468] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 52.754729][ T468] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 52.755059][ T468] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 52.755389][ T468] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 52.755815][ T468] ___sys_sendmsg (net/socket.c:2670) 
[ 52.756137][ T468] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 52.756459][ T468] ? __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) 
[ 52.756874][ T468] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 52.757201][ T468] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 52.757526][ T468] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 52.757869][ T468] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 52.758188][ T468] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 52.758511][ T468] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 52.758856][ T468] __sys_sendmsg (net/socket.c:2700) 
[ 52.759179][ T468] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 52.759581][ T468] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 52.759932][ T468] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 52.760258][ T468] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 52.760614][ T468] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   52.761024][  T468] RIP: 0033:0x7f6d78aa91e7
[ 52.761359][ T468] 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)
[   52.762542][  T468] RSP: 002b:00007fff8d9a6dd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   52.763050][  T468] RAX: ffffffffffffffda RBX: 00007fff8d9a7500 RCX: 00007f6d78aa91e7
[   52.763536][  T468] RDX: 0000000000000000 RSI: 00007fff8d9a6e40 RDI: 0000000000000005
[   52.764034][  T468] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   52.764520][  T468] R10: 00007f6d789a6ee8 R11: 0000000000000246 R12: 0000000000000003
[   52.765022][  T468] R13: 00000000686e3e69 R14: 0000000000499600 R15: 0000000000000000
| [   55.123724][  T471] ------------[ cut here ]------------
| [ 55.124051][ T471] WARNING: CPU: 2 PID: 471 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) 
| [   55.124685][  T471] Modules linked in: bridge stp llc vrf veth
| [   55.125766][  T471] Tainted: [W]=WARN
[   55.126009][  T471] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 55.126408][ T471] 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) 
[ 55.126746][ T471] 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
[   55.127855][  T471] RSP: 0018:ffffc90000d56ef0 EFLAGS: 00010246
[   55.128254][  T471] RAX: 0000000000000000 RBX: ffff88800baca000 RCX: 0000000000000001
[   55.128879][  T471] RDX: 0000000000000000 RSI: ffffffffaa49b941 RDI: ffffffffa9c555e0
[   55.129495][  T471] RBP: ffffc90000d56fe0 R08: 0000000000000000 R09: 0000000000000000
[   55.130159][  T471] R10: ffffc90000d57010 R11: ffffffffab2a8918 R12: 1ffff920001aade2
[   55.130829][  T471] R13: 00000000000005dc R14: ffffc90000d57010 R15: ffff88800bacaf08
[   55.131440][  T471] FS:  00007fb41baa2800(0000) GS:ffff888089db7000(0000) knlGS:0000000000000000
[   55.132235][  T471] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.132903][  T471] CR2: 00000000004e5aa8 CR3: 000000000bbd1006 CR4: 0000000000772ef0
[   55.133547][  T471] PKRU: 55555554
[   55.133957][  T471] Call Trace:
[   55.134338][  T471]  <TASK>
[ 55.134657][ T471] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 55.134995][ T471] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.135327][ T471] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 55.135661][ T471] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 55.136054][ T471] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 55.136375][ T471] netif_set_mtu (net/core/dev.c:9652) 
[ 55.136714][ T471] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 55.137042][ T471] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 55.137481][ T471] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 55.137747][ T471] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 55.138179][ T471] br_add_if (net/bridge/br_if.c:697) bridge 
[ 55.138546][ T471] do_set_master (net/core/rtnetlink.c:2948) 
[ 55.138879][ T471] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 55.139202][ T471] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 55.139612][ T471] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 55.139932][ T471] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 55.140254][ T471] ? __kernel_text_address (kernel/extable.c:79) 
[ 55.140576][ T471] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.140923][ T471] ? __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) 
[ 55.141243][ T471] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 55.141643][ T471] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 55.141972][ T471] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 55.142287][ T471] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 55.142621][ T471] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 55.142942][ T471] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.143261][ T471] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 55.143574][ T471] ? __create_object (mm/kmemleak.c:771) 
[ 55.143909][ T471] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 55.144232][ T471] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 55.144551][ T471] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 55.144971][ T471] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 55.145305][ T471] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 55.145638][ T471] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 55.145954][ T471] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.146274][ T471] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.146601][ T471] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 55.146916][ T471] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 55.147235][ T471] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 55.147554][ T471] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 55.147885][ T471] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 55.148204][ T471] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.148524][ T471] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 55.148863][ T471] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 55.149182][ T471] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 55.149509][ T471] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 55.149841][ T471] ? 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) 
[ 55.150160][ T471] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 55.150481][ T471] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 55.150804][ T471] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.151125][ T471] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 55.151447][ T471] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 55.151785][ T471] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 55.152111][ T471] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 55.152441][ T471] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 55.152776][ T471] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 55.153179][ T471] ___sys_sendmsg (net/socket.c:2670) 
[ 55.153491][ T471] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 55.153817][ T471] ? __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) 
[ 55.154207][ T471] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 55.154533][ T471] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.154862][ T471] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.155189][ T471] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.155504][ T471] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 55.155831][ T471] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 55.156157][ T471] __sys_sendmsg (net/socket.c:2700) 
[ 55.156476][ T471] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 55.156886][ T471] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 55.157226][ T471] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 55.157546][ T471] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 55.157875][ T471] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   55.158263][  T471] RIP: 0033:0x7fb41bc6f1e7
[ 55.158600][ T471] 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)
[   55.159721][  T471] RSP: 002b:00007fff7adb97a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   55.160197][  T471] RAX: ffffffffffffffda RBX: 00007fff7adb9ed0 RCX: 00007fb41bc6f1e7
[   55.160686][  T471] RDX: 0000000000000000 RSI: 00007fff7adb9810 RDI: 0000000000000005
[   55.161156][  T471] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   55.161645][  T471] R10: 000000002d053910 R11: 0000000000000246 R12: 0000000000000004
[   55.162119][  T471] R13: 00000000686e3e6b R14: 0000000000499600 R15: 0000000000000000
| [   59.134991][  T513] ------------[ cut here ]------------
| [ 59.135304][ T513] WARNING: CPU: 3 PID: 513 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) 
| [   59.135935][  T513] Modules linked in: bridge stp llc vrf veth
| [   59.137213][  T513] Tainted: [W]=WARN
[   59.137459][  T513] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 59.138389][ T513] 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) 
[ 59.138732][ T513] 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
[   59.139853][  T513] RSP: 0018:ffffc90000f06f70 EFLAGS: 00010246
[   59.140253][  T513] RAX: 0000000000000000 RBX: ffff88800baca000 RCX: 0000000000000001
[   59.140736][  T513] RDX: 0000000000000000 RSI: ffffffffaa49b941 RDI: ffffffffa9c555e0
[   59.141208][  T513] RBP: ffffc90000f07058 R08: 0000000000000000 R09: 0000000000000000
[   59.141703][  T513] R10: ffffc90000f07088 R11: ffffffffaa979160 R12: 1ffff920001e0df2
[   59.142173][  T513] R13: 00000000000005dc R14: ffffc90000f07088 R15: ffff88800bacaf08
[   59.142659][  T513] FS:  00007fc93eced800(0000) GS:ffff888089e37000(0000) knlGS:0000000000000000
[   59.143196][  T513] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   59.143578][  T513] CR2: 00000000004e5aa8 CR3: 000000000523c001 CR4: 0000000000772ef0
[   59.144076][  T513] PKRU: 55555554
[   59.144320][  T513] Call Trace:
[   59.144561][  T513]  <TASK>
[ 59.144729][ T513] ? __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) 
[ 59.145124][ T513] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 59.145476][ T513] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 59.145808][ T513] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 59.146127][ T513] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 59.146436][ T513] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 59.146751][ T513] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 59.147055][ T513] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 59.147361][ T513] ? ___sys_sendmsg (net/socket.c:2670) 
[ 59.147706][ T513] ? __sys_sendmsg (net/socket.c:2700) 
[ 59.148026][ T513] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 59.148327][ T513] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 59.148716][ T513] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 59.149050][ T513] netif_set_mtu (net/core/dev.c:9652) 
[ 59.149372][ T513] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 59.149712][ T513] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 59.149954][ T513] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 59.150414][ T513] br_del_if (net/bridge/br_if.c:743) bridge 
[ 59.150784][ T513] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 59.151088][ T513] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 59.151409][ T513] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 59.151754][ T513] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 59.152155][ T513] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 59.152465][ T513] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 59.152789][ T513] ? __kernel_text_address (kernel/extable.c:79) 
[ 59.153096][ T513] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 59.153403][ T513] ? __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) 
[ 59.153717][ T513] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 59.154093][ T513] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 59.154414][ T513] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 59.154741][ T513] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 59.155064][ T513] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 59.155395][ T513] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 59.155737][ T513] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 59.156038][ T513] ? __create_object (mm/kmemleak.c:771) 
[ 59.156343][ T513] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 59.156657][ T513] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 59.156959][ T513] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 59.157341][ T513] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 59.157661][ T513] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 59.157970][ T513] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 59.158270][ T513] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 59.158577][ T513] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 59.158888][ T513] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 59.159189][ T513] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 59.159491][ T513] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 59.159810][ T513] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 59.160116][ T513] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 59.160421][ T513] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 59.160748][ T513] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 59.161055][ T513] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 59.161358][ T513] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 59.161715][ T513] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 59.162048][ T513] ? 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) 
[ 59.162367][ T513] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 59.162702][ T513] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 59.163019][ T513] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 59.163342][ T513] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 59.163659][ T513] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 59.163963][ T513] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 59.164288][ T513] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 59.164611][ T513] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 59.164926][ T513] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 59.165320][ T513] ___sys_sendmsg (net/socket.c:2670) 
[ 59.165639][ T513] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 59.165941][ T513] ? __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) 
[ 59.166320][ T513] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 59.166658][ T513] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 59.166981][ T513] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 59.167297][ T513] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 59.167626][ T513] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 59.167930][ T513] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 59.168241][ T513] __sys_sendmsg (net/socket.c:2700) 
[ 59.168560][ T513] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 59.168960][ T513] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 59.169283][ T513] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 59.169601][ T513] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 59.169907][ T513] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   59.170281][  T513] RIP: 0033:0x7fc93eeba1e7
[ 59.170622][ T513] 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)
[   59.171734][  T513] RSP: 002b:00007ffcd06b2e98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   59.172192][  T513] RAX: ffffffffffffffda RBX: 00007ffcd06b35c0 RCX: 00007fc93eeba1e7
[   59.172656][  T513] RDX: 0000000000000000 RSI: 00007ffcd06b2f00 RDI: 0000000000000005
[   59.173108][  T513] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   59.173566][  T513] R10: 00007fc93edb7ee8 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